diff --git a/CleanSpec.mk b/CleanSpec.mk
index d0890fe..34d040e 100644
--- a/CleanSpec.mk
+++ b/CleanSpec.mk
@@ -59,6 +59,12 @@
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/lib/libaudiopolicymanager.so)
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/SHARED_LIBRARIES/libaudiopolicyservice_intermediates)
 $(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/SHARED_LIBRARIES/libaudiopolicymanager_intermediates)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/lib/liboboe.so)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/system/lib64/liboboe.so)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/STATIC_LIBRARIES/liboboe*)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj/SHARED_LIBRARIES/liboboe*)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj_arm/STATIC_LIBRARIES/liboboe*)
+$(call add-clean-step, rm -rf $(PRODUCT_OUT)/obj_arm/SHARED_LIBRARIES/liboboe*)
 
 # ************************************************
 # NEWER CLEAN STEPS MUST BE AT THE END OF THE LIST
diff --git a/camera/Android.mk b/camera/Android.mk
index c9c98e9..91d87ed 100644
--- a/camera/Android.mk
+++ b/camera/Android.mk
@@ -65,11 +65,11 @@
 	system/media/camera/include \
 	system/media/private/camera/include \
 	frameworks/native/include/media/openmax \
-	frameworks/av/include/camera
+	$(LOCAL_PATH)/include/camera
 
 LOCAL_EXPORT_C_INCLUDE_DIRS := \
 	system/media/camera/include \
-	frameworks/av/include/camera
+	$(LOCAL_PATH)/include/camera
 
 LOCAL_CFLAGS += -Werror -Wall -Wextra
 
diff --git a/camera/CameraBase.cpp b/camera/CameraBase.cpp
index 2d291a8..60effe2 100644
--- a/camera/CameraBase.cpp
+++ b/camera/CameraBase.cpp
@@ -39,7 +39,7 @@
 
 namespace hardware {
 
-status_t CameraInfo::writeToParcel(Parcel* parcel) const {
+status_t CameraInfo::writeToParcel(android::Parcel* parcel) const {
     status_t res;
     res = parcel->writeInt32(facing);
     if (res != OK) return res;
@@ -47,7 +47,7 @@
     return res;
 }
 
-status_t CameraInfo::readFromParcel(const Parcel* parcel) {
+status_t CameraInfo::readFromParcel(const android::Parcel* parcel) {
     status_t res;
     res = parcel->readInt32(&facing);
     if (res != OK) return res;
@@ -55,8 +55,24 @@
     return res;
 }
 
+status_t CameraStatus::writeToParcel(android::Parcel* parcel) const {
+    status_t res;
+    res = parcel->writeString8(cameraId);
+    if (res != OK) return res;
+    res = parcel->writeInt32(status);
+    return res;
 }
 
+status_t CameraStatus::readFromParcel(const android::Parcel* parcel) {
+    status_t res;
+    res = parcel->readString8(&cameraId);
+    if (res != OK) return res;
+    res = parcel->readInt32(&status);
+    return res;
+}
+
+} // namespace hardware
+
 namespace {
     sp<::android::hardware::ICameraService> gCameraService;
     const int                 kCameraServicePollDelay = 500000; // 0.5s
@@ -239,24 +255,6 @@
     return res.isOk() ? OK : res.serviceSpecificErrorCode();
 }
 
-template <typename TCam, typename TCamTraits>
-status_t CameraBase<TCam, TCamTraits>::addServiceListener(
-        const sp<::android::hardware::ICameraServiceListener>& listener) {
-    const sp<::android::hardware::ICameraService>& cs = getCameraService();
-    if (cs == 0) return UNKNOWN_ERROR;
-    binder::Status res = cs->addListener(listener);
-    return res.isOk() ? OK : res.serviceSpecificErrorCode();
-}
-
-template <typename TCam, typename TCamTraits>
-status_t CameraBase<TCam, TCamTraits>::removeServiceListener(
-        const sp<::android::hardware::ICameraServiceListener>& listener) {
-    const sp<::android::hardware::ICameraService>& cs = getCameraService();
-    if (cs == 0) return UNKNOWN_ERROR;
-    binder::Status res = cs->removeListener(listener);
-    return res.isOk() ? OK : res.serviceSpecificErrorCode();
-}
-
 template class CameraBase<Camera>;
 
 } // namespace android
diff --git a/camera/CaptureResult.cpp b/camera/CaptureResult.cpp
index 0a447e7..e6c0d00 100644
--- a/camera/CaptureResult.cpp
+++ b/camera/CaptureResult.cpp
@@ -26,7 +26,7 @@
     return requestId >= 0;
 }
 
-status_t CaptureResultExtras::readFromParcel(const Parcel *parcel) {
+status_t CaptureResultExtras::readFromParcel(const android::Parcel *parcel) {
     if (parcel == NULL) {
         ALOGE("%s: Null parcel", __FUNCTION__);
         return BAD_VALUE;
@@ -43,7 +43,7 @@
     return OK;
 }
 
-status_t CaptureResultExtras::writeToParcel(Parcel *parcel) const {
+status_t CaptureResultExtras::writeToParcel(android::Parcel *parcel) const {
     if (parcel == NULL) {
         ALOGE("%s: Null parcel", __FUNCTION__);
         return BAD_VALUE;
@@ -69,7 +69,7 @@
     mMetadata = otherResult.mMetadata;
 }
 
-status_t CaptureResult::readFromParcel(Parcel *parcel) {
+status_t CaptureResult::readFromParcel(android::Parcel *parcel) {
 
     ALOGV("%s: parcel = %p", __FUNCTION__, parcel);
 
@@ -100,7 +100,7 @@
     return OK;
 }
 
-status_t CaptureResult::writeToParcel(Parcel *parcel) const {
+status_t CaptureResult::writeToParcel(android::Parcel *parcel) const {
 
     ALOGV("%s: parcel = %p", __FUNCTION__, parcel);
 
diff --git a/camera/VendorTagDescriptor.cpp b/camera/VendorTagDescriptor.cpp
index f3b3dbb..ed09b60 100644
--- a/camera/VendorTagDescriptor.cpp
+++ b/camera/VendorTagDescriptor.cpp
@@ -96,7 +96,7 @@
     mVendorOps = src.mVendorOps;
 }
 
-status_t VendorTagDescriptor::readFromParcel(const Parcel* parcel) {
+status_t VendorTagDescriptor::readFromParcel(const android::Parcel* parcel) {
     status_t res = OK;
     if (parcel == NULL) {
         ALOGE("%s: parcel argument was NULL.", __FUNCTION__);
@@ -244,7 +244,7 @@
     return mTagToTypeMap.valueFor(tag);
 }
 
-status_t VendorTagDescriptor::writeToParcel(Parcel* parcel) const {
+status_t VendorTagDescriptor::writeToParcel(android::Parcel* parcel) const {
     status_t res = OK;
     if (parcel == NULL) {
         ALOGE("%s: parcel argument was NULL.", __FUNCTION__);
diff --git a/camera/aidl/android/hardware/CameraStatus.aidl b/camera/aidl/android/hardware/CameraStatus.aidl
new file mode 100644
index 0000000..2089b8b
--- /dev/null
+++ b/camera/aidl/android/hardware/CameraStatus.aidl
@@ -0,0 +1,20 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware;
+
+/** @hide */
+parcelable CameraStatus cpp_header "camera/CameraBase.h";
diff --git a/camera/aidl/android/hardware/ICameraService.aidl b/camera/aidl/android/hardware/ICameraService.aidl
index e94fd0c..99c479c 100644
--- a/camera/aidl/android/hardware/ICameraService.aidl
+++ b/camera/aidl/android/hardware/ICameraService.aidl
@@ -24,6 +24,7 @@
 import android.hardware.camera2.impl.CameraMetadataNative;
 import android.hardware.ICameraServiceListener;
 import android.hardware.CameraInfo;
+import android.hardware.CameraStatus;
 
 /**
  * Binder interface for the native camera service running in mediaserver.
@@ -83,7 +84,7 @@
      * Only supported for device HAL versions >= 3.2
      */
     ICameraDeviceUser connectDevice(ICameraDeviceCallbacks callbacks,
-            int cameraId,
+            String cameraId,
             String opPackageName,
             int clientUid);
 
@@ -102,16 +103,24 @@
             int clientUid);
 
     /**
-     * Add/remove listeners for changes to camera device and flashlight state
+     * Add listener for changes to camera device and flashlight state.
+     *
+     * Also returns the set of currently-known camera IDs and state of each device.
+     * Adding a listener will trigger the torch status listener to fire for all
+     * devices that have a flash unit
      */
-    void addListener(ICameraServiceListener listener);
+    CameraStatus[] addListener(ICameraServiceListener listener);
+
+    /**
+     * Remove listener for changes to camera device and flashlight state.
+     */
     void removeListener(ICameraServiceListener listener);
 
     /**
      * Read the static camera metadata for a camera device.
      * Only supported for device HAL versions >= 3.2
      */
-    CameraMetadataNative getCameraCharacteristics(int cameraId);
+    CameraMetadataNative getCameraCharacteristics(String cameraId);
 
     /**
      * Read in the vendor tag descriptors from the camera module HAL.
@@ -132,9 +141,9 @@
     const int API_VERSION_2 = 2;
 
     // Determines if a particular API version is supported directly
-    boolean supportsCameraApi(int cameraId, int apiVersion);
+    boolean supportsCameraApi(String cameraId, int apiVersion);
 
-    void setTorchMode(String CameraId, boolean enabled, IBinder clientBinder);
+    void setTorchMode(String cameraId, boolean enabled, IBinder clientBinder);
 
     /**
      * Notify the camera service of a system event.  Should only be called from system_server.
diff --git a/camera/aidl/android/hardware/ICameraServiceListener.aidl b/camera/aidl/android/hardware/ICameraServiceListener.aidl
index 4e2a8c7..f871ce4 100644
--- a/camera/aidl/android/hardware/ICameraServiceListener.aidl
+++ b/camera/aidl/android/hardware/ICameraServiceListener.aidl
@@ -40,7 +40,7 @@
      */
     // Device physically unplugged
     const int STATUS_NOT_PRESENT      = 0;
-    // Device physically has been plugged in and the camera can be used exlusively
+    // Device physically has been plugged in and the camera can be used exclusively
     const int STATUS_PRESENT          = 1;
     // Device physically has been plugged in but it will not be connect-able until enumeration is
     // complete
@@ -51,7 +51,7 @@
     // Use to initialize variables only
     const int STATUS_UNKNOWN          = -1;
 
-    oneway void onStatusChanged(int status, int cameraId);
+    oneway void onStatusChanged(int status, String cameraId);
 
     /**
      * The torch mode status of a camera.
diff --git a/camera/aidl/android/hardware/camera2/ICameraDeviceCallbacks.aidl b/camera/aidl/android/hardware/camera2/ICameraDeviceCallbacks.aidl
index 755ec8e..8308095 100644
--- a/camera/aidl/android/hardware/camera2/ICameraDeviceCallbacks.aidl
+++ b/camera/aidl/android/hardware/camera2/ICameraDeviceCallbacks.aidl
@@ -44,4 +44,5 @@
      * @param lastFrameNumber Frame number of the last frame of the streaming request.
      */
     oneway void onRepeatingRequestError(in long lastFrameNumber);
+    oneway void onRequestQueueEmpty();
 }
diff --git a/camera/aidl/android/hardware/camera2/ICameraDeviceUser.aidl b/camera/aidl/android/hardware/camera2/ICameraDeviceUser.aidl
index 96ecfa0..0771fc8 100644
--- a/camera/aidl/android/hardware/camera2/ICameraDeviceUser.aidl
+++ b/camera/aidl/android/hardware/camera2/ICameraDeviceUser.aidl
@@ -54,6 +54,22 @@
     void beginConfigure();
 
     /**
+     * The standard operating mode for a camera device; all API guarantees are in force
+     */
+    const int NORMAL_MODE = 0;
+
+    /**
+     * High-speed recording mode; only two outputs targeting preview and video recording may be
+     * used, and requests must be batched.
+     */
+    const int CONSTRAINED_HIGH_SPEED_MODE = 1;
+
+    /**
+     * Start of custom vendor modes
+     */
+    const int VENDOR_MODE_START = 0x8000;
+
+    /**
      * End the device configuration.
      *
      * <p>
@@ -61,8 +77,10 @@
      * a call to beginConfigure and subsequent createStream/deleteStream calls).  This
      * must be called before any requests can be submitted.
      * <p>
+     * @param operatingMode The kind of session to create; either NORMAL_MODE or
+     *     CONSTRAINED_HIGH_SPEED_MODE. Must be a non-negative value.
      */
-    void endConfigure(boolean isConstrainedHighSpeed);
+    void endConfigure(int operatingMode);
 
     void deleteStream(int streamId);
 
@@ -122,5 +140,5 @@
 
     void prepare2(int maxCount, int streamId);
 
-    void setDeferredConfiguration(int streamId, in OutputConfiguration outputConfiguration);
+    void finalizeOutputConfigurations(int streamId, in OutputConfiguration outputConfiguration);
 }
diff --git a/camera/camera2/CaptureRequest.cpp b/camera/camera2/CaptureRequest.cpp
index 0d689a6..0597950 100644
--- a/camera/camera2/CaptureRequest.cpp
+++ b/camera/camera2/CaptureRequest.cpp
@@ -23,12 +23,20 @@
 
 #include <binder/Parcel.h>
 #include <gui/Surface.h>
+#include <gui/view/Surface.h>
 
 namespace android {
 namespace hardware {
 namespace camera2 {
 
-status_t CaptureRequest::readFromParcel(const Parcel* parcel) {
+// These must be in the .cpp (to avoid inlining)
+CaptureRequest::CaptureRequest() = default;
+CaptureRequest::~CaptureRequest() = default;
+CaptureRequest::CaptureRequest(const CaptureRequest& rhs) = default;
+CaptureRequest::CaptureRequest(CaptureRequest&& rhs) noexcept = default;
+
+
+status_t CaptureRequest::readFromParcel(const android::Parcel* parcel) {
     if (parcel == NULL) {
         ALOGE("%s: Null parcel", __FUNCTION__);
         return BAD_VALUE;
@@ -90,7 +98,7 @@
     return OK;
 }
 
-status_t CaptureRequest::writeToParcel(Parcel* parcel) const {
+status_t CaptureRequest::writeToParcel(android::Parcel* parcel) const {
     if (parcel == NULL) {
         ALOGE("%s: Null parcel", __FUNCTION__);
         return BAD_VALUE;
diff --git a/camera/camera2/OutputConfiguration.cpp b/camera/camera2/OutputConfiguration.cpp
index 38e1c01..468a1eb 100644
--- a/camera/camera2/OutputConfiguration.cpp
+++ b/camera/camera2/OutputConfiguration.cpp
@@ -21,8 +21,9 @@
 #include <utils/Log.h>
 
 #include <camera/camera2/OutputConfiguration.h>
-#include <gui/Surface.h>
 #include <binder/Parcel.h>
+#include <gui/view/Surface.h>
+#include <utils/String8.h>
 
 namespace android {
 
@@ -30,8 +31,9 @@
 const int OutputConfiguration::INVALID_ROTATION = -1;
 const int OutputConfiguration::INVALID_SET_ID = -1;
 
-sp<IGraphicBufferProducer> OutputConfiguration::getGraphicBufferProducer() const {
-    return mGbp;
+const std::vector<sp<IGraphicBufferProducer>>&
+        OutputConfiguration::getGraphicBufferProducers() const {
+    return mGbps;
 }
 
 int OutputConfiguration::getRotation() const {
@@ -54,21 +56,31 @@
     return mHeight;
 }
 
+bool OutputConfiguration::isDeferred() const {
+    return mIsDeferred;
+}
+
+bool OutputConfiguration::isShared() const {
+    return mIsShared;
+}
+
 OutputConfiguration::OutputConfiguration() :
         mRotation(INVALID_ROTATION),
         mSurfaceSetID(INVALID_SET_ID),
         mSurfaceType(SURFACE_TYPE_UNKNOWN),
         mWidth(0),
-        mHeight(0) {
+        mHeight(0),
+        mIsDeferred(false),
+        mIsShared(false) {
 }
 
-OutputConfiguration::OutputConfiguration(const Parcel& parcel) :
+OutputConfiguration::OutputConfiguration(const android::Parcel& parcel) :
         mRotation(INVALID_ROTATION),
         mSurfaceSetID(INVALID_SET_ID) {
     readFromParcel(&parcel);
 }
 
-status_t OutputConfiguration::readFromParcel(const Parcel* parcel) {
+status_t OutputConfiguration::readFromParcel(const android::Parcel* parcel) {
     status_t err = OK;
     int rotation = 0;
 
@@ -103,42 +115,60 @@
         return err;
     }
 
-    view::Surface surfaceShim;
-    if ((err = surfaceShim.readFromParcel(parcel)) != OK) {
-        // Read surface failure for deferred surface configuration is expected.
-        if (surfaceType == SURFACE_TYPE_SURFACE_VIEW ||
-                surfaceType == SURFACE_TYPE_SURFACE_TEXTURE) {
-            ALOGV("%s: Get null surface from a deferred surface configuration (%dx%d)",
-                    __FUNCTION__, width, height);
-            err = OK;
-        } else {
-            ALOGE("%s: Failed to read surface from parcel", __FUNCTION__);
-            return err;
-        }
+    int isDeferred = 0;
+    if ((err = parcel->readInt32(&isDeferred)) != OK) {
+        ALOGE("%s: Failed to read surface isDeferred flag from parcel", __FUNCTION__);
+        return err;
     }
 
-    mGbp = surfaceShim.graphicBufferProducer;
+    int isShared = 0;
+    if ((err = parcel->readInt32(&isShared)) != OK) {
+        ALOGE("%s: Failed to read surface isShared flag from parcel", __FUNCTION__);
+        return err;
+    }
+
+    if (isDeferred && surfaceType != SURFACE_TYPE_SURFACE_VIEW &&
+            surfaceType != SURFACE_TYPE_SURFACE_TEXTURE) {
+        ALOGE("%s: Invalid surface type for deferred configuration", __FUNCTION__);
+        return BAD_VALUE;
+    }
+
+    std::vector<view::Surface> surfaceShims;
+    if ((err = parcel->readParcelableVector(&surfaceShims)) != OK) {
+        ALOGE("%s: Failed to read surface(s) from parcel", __FUNCTION__);
+        return err;
+    }
+
     mRotation = rotation;
     mSurfaceSetID = setID;
     mSurfaceType = surfaceType;
     mWidth = width;
     mHeight = height;
+    mIsDeferred = isDeferred != 0;
+    mIsShared = isShared != 0;
+    for (auto& surface : surfaceShims) {
+        ALOGV("%s: OutputConfiguration: %p, name %s", __FUNCTION__,
+                surface.graphicBufferProducer.get(),
+                String8(surface.name).string());
+        mGbps.push_back(surface.graphicBufferProducer);
+    }
 
-    ALOGV("%s: OutputConfiguration: bp = %p, name = %s, rotation = %d, setId = %d,"
-            "surfaceType = %d", __FUNCTION__, mGbp.get(), String8(surfaceShim.name).string(),
-            mRotation, mSurfaceSetID, mSurfaceType);
+    ALOGV("%s: OutputConfiguration: rotation = %d, setId = %d, surfaceType = %d",
+            __FUNCTION__, mRotation, mSurfaceSetID, mSurfaceType);
 
     return err;
 }
 
 OutputConfiguration::OutputConfiguration(sp<IGraphicBufferProducer>& gbp, int rotation,
         int surfaceSetID) {
-    mGbp = gbp;
+    mGbps.push_back(gbp);
     mRotation = rotation;
     mSurfaceSetID = surfaceSetID;
+    mIsDeferred = false;
+    mIsShared = false;
 }
 
-status_t OutputConfiguration::writeToParcel(Parcel* parcel) const {
+status_t OutputConfiguration::writeToParcel(android::Parcel* parcel) const {
 
     if (parcel == nullptr) return BAD_VALUE;
     status_t err = OK;
@@ -158,14 +188,56 @@
     err = parcel->writeInt32(mHeight);
     if (err != OK) return err;
 
-    view::Surface surfaceShim;
-    surfaceShim.name = String16("unknown_name"); // name of surface
-    surfaceShim.graphicBufferProducer = mGbp;
+    err = parcel->writeInt32(mIsDeferred ? 1 : 0);
+    if (err != OK) return err;
 
-    err = surfaceShim.writeToParcel(parcel);
+    err = parcel->writeInt32(mIsShared ? 1 : 0);
+    if (err != OK) return err;
+
+    std::vector<view::Surface> surfaceShims;
+    for (auto& gbp : mGbps) {
+        view::Surface surfaceShim;
+        surfaceShim.name = String16("unknown_name"); // name of surface
+        surfaceShim.graphicBufferProducer = gbp;
+        surfaceShims.push_back(surfaceShim);
+    }
+    err = parcel->writeParcelableVector(surfaceShims);
     if (err != OK) return err;
 
     return OK;
 }
 
+bool OutputConfiguration::gbpsEqual(const OutputConfiguration& other) const {
+    const std::vector<sp<IGraphicBufferProducer> >& otherGbps =
+            other.getGraphicBufferProducers();
+
+    if (mGbps.size() != otherGbps.size()) {
+        return false;
+    }
+
+    for (size_t i = 0; i < mGbps.size(); i++) {
+        if (mGbps[i] != otherGbps[i]) {
+            return false;
+        }
+    }
+
+    return true;
+}
+
+bool OutputConfiguration::gbpsLessThan(const OutputConfiguration& other) const {
+    const std::vector<sp<IGraphicBufferProducer> >& otherGbps =
+            other.getGraphicBufferProducers();
+
+    if (mGbps.size() !=  otherGbps.size()) {
+        return mGbps.size() < otherGbps.size();
+    }
+
+    for (size_t i = 0; i < mGbps.size(); i++) {
+        if (mGbps[i] != otherGbps[i]) {
+            return mGbps[i] < otherGbps[i];
+        }
+    }
+
+    return false;
+}
 }; // namespace android
diff --git a/camera/camera2/SubmitInfo.cpp b/camera/camera2/SubmitInfo.cpp
index d739c79..6ebd810 100644
--- a/camera/camera2/SubmitInfo.cpp
+++ b/camera/camera2/SubmitInfo.cpp
@@ -22,7 +22,7 @@
 namespace camera2 {
 namespace utils {
 
-status_t SubmitInfo::writeToParcel(Parcel *parcel) const {
+status_t SubmitInfo::writeToParcel(android::Parcel *parcel) const {
     status_t res;
     if (parcel == nullptr) return BAD_VALUE;
 
@@ -33,7 +33,7 @@
     return res;
 }
 
-status_t SubmitInfo::readFromParcel(const Parcel *parcel) {
+status_t SubmitInfo::readFromParcel(const android::Parcel *parcel) {
     status_t res;
     if (parcel == nullptr) return BAD_VALUE;
 
diff --git a/camera/cameraserver/Android.mk b/camera/cameraserver/Android.mk
index 888862a..f0a0db0 100644
--- a/camera/cameraserver/Android.mk
+++ b/camera/cameraserver/Android.mk
@@ -22,9 +22,15 @@
 LOCAL_SHARED_LIBRARIES := \
 	libcameraservice \
 	liblog \
-	libcutils \
 	libutils \
+	libui \
 	libbinder \
+	libhidltransport \
+	android.hardware.camera.common@1.0 \
+	android.hardware.camera.provider@2.4 \
+	android.hardware.camera.device@1.0 \
+	android.hardware.camera.device@3.2 \
+	android.hidl.manager@1.0
 
 LOCAL_MODULE:= cameraserver
 LOCAL_32_BIT_ONLY := true
diff --git a/camera/cameraserver/main_cameraserver.cpp b/camera/cameraserver/main_cameraserver.cpp
index f4be468..3972436 100644
--- a/camera/cameraserver/main_cameraserver.cpp
+++ b/camera/cameraserver/main_cameraserver.cpp
@@ -17,8 +17,8 @@
 #define LOG_TAG "cameraserver"
 //#define LOG_NDEBUG 0
 
-// from LOCAL_C_INCLUDES
 #include "CameraService.h"
+#include <hidl/HidlTransportSupport.h>
 
 using namespace android;
 
@@ -26,6 +26,9 @@
 {
     signal(SIGPIPE, SIG_IGN);
 
+    // Set 3 threads for HIDL calls
+    hardware::configureRpcThreadpool(3, /*willjoin*/ false);
+
     sp<ProcessState> proc(ProcessState::self());
     sp<IServiceManager> sm = defaultServiceManager();
     ALOGI("ServiceManager: %p", sm.get());
diff --git a/include/camera/Camera.h b/camera/include/camera/Camera.h
similarity index 100%
rename from include/camera/Camera.h
rename to camera/include/camera/Camera.h
diff --git a/camera/include/camera/CameraBase.h b/camera/include/camera/CameraBase.h
new file mode 100644
index 0000000..74a2dce
--- /dev/null
+++ b/camera/include/camera/CameraBase.h
@@ -0,0 +1,158 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_CAMERA_BASE_H
+#define ANDROID_HARDWARE_CAMERA_BASE_H
+
+#include <android/hardware/ICameraServiceListener.h>
+
+#include <utils/Mutex.h>
+#include <binder/BinderService.h>
+
+struct camera_frame_metadata;
+
+namespace android {
+
+namespace hardware {
+
+
+class ICameraService;
+class ICameraServiceListener;
+
+enum {
+    /** The facing of the camera is opposite to that of the screen. */
+    CAMERA_FACING_BACK = 0,
+    /** The facing of the camera is the same as that of the screen. */
+    CAMERA_FACING_FRONT = 1,
+};
+
+struct CameraInfo : public android::Parcelable {
+    /**
+     * The direction that the camera faces to. It should be CAMERA_FACING_BACK
+     * or CAMERA_FACING_FRONT.
+     */
+    int facing;
+
+    /**
+     * The orientation of the camera image. The value is the angle that the
+     * camera image needs to be rotated clockwise so it shows correctly on the
+     * display in its natural orientation. It should be 0, 90, 180, or 270.
+     *
+     * For example, suppose a device has a naturally tall screen. The
+     * back-facing camera sensor is mounted in landscape. You are looking at
+     * the screen. If the top side of the camera sensor is aligned with the
+     * right edge of the screen in natural orientation, the value should be
+     * 90. If the top side of a front-facing camera sensor is aligned with the
+     * right of the screen, the value should be 270.
+     */
+    int orientation;
+
+    virtual status_t writeToParcel(android::Parcel* parcel) const;
+    virtual status_t readFromParcel(const android::Parcel* parcel);
+
+};
+
+/**
+ * Basic status information about a camera device - its name and its current
+ * state.
+ */
+struct CameraStatus : public android::Parcelable {
+    /**
+     * The name of the camera device
+     */
+    String8 cameraId;
+
+    /**
+     * Its current status, one of the ICameraService::STATUS_* fields
+     */
+    int32_t status;
+
+    virtual status_t writeToParcel(android::Parcel* parcel) const;
+    virtual status_t readFromParcel(const android::Parcel* parcel);
+
+    CameraStatus(String8 id, int32_t s) : cameraId(id), status(s) {}
+    CameraStatus() : status(ICameraServiceListener::STATUS_PRESENT) {}
+};
+
+} // namespace hardware
+
+using hardware::CameraInfo;
+
+
+template <typename TCam>
+struct CameraTraits {
+};
+
+template <typename TCam, typename TCamTraits = CameraTraits<TCam> >
+class CameraBase : public IBinder::DeathRecipient
+{
+public:
+    typedef typename TCamTraits::TCamListener       TCamListener;
+    typedef typename TCamTraits::TCamUser           TCamUser;
+    typedef typename TCamTraits::TCamCallbacks      TCamCallbacks;
+    typedef typename TCamTraits::TCamConnectService TCamConnectService;
+
+    static sp<TCam>      connect(int cameraId,
+                                 const String16& clientPackageName,
+                                 int clientUid, int clientPid);
+    virtual void         disconnect();
+
+    void                 setListener(const sp<TCamListener>& listener);
+
+    static int           getNumberOfCameras();
+
+    static status_t      getCameraInfo(int cameraId,
+                                       /*out*/
+                                       struct hardware::CameraInfo* cameraInfo);
+
+    sp<TCamUser>         remote();
+
+    // Status is set to 'UNKNOWN_ERROR' after successful (re)connection
+    status_t             getStatus();
+
+protected:
+    CameraBase(int cameraId);
+    virtual              ~CameraBase();
+
+    ////////////////////////////////////////////////////////
+    // TCamCallbacks implementation
+    ////////////////////////////////////////////////////////
+    virtual void         notifyCallback(int32_t msgType, int32_t ext,
+                                        int32_t ext2);
+
+    ////////////////////////////////////////////////////////
+    // Common instance variables
+    ////////////////////////////////////////////////////////
+    Mutex                            mLock;
+
+    virtual void                     binderDied(const wp<IBinder>& who);
+
+    // helper function to obtain camera service handle
+    static const sp<::android::hardware::ICameraService> getCameraService();
+
+    sp<TCamUser>                     mCamera;
+    status_t                         mStatus;
+
+    sp<TCamListener>                 mListener;
+
+    const int                        mCameraId;
+
+    typedef CameraBase<TCam>         CameraBaseT;
+};
+
+}; // namespace android
+
+#endif
diff --git a/include/camera/CameraMetadata.h b/camera/include/camera/CameraMetadata.h
similarity index 100%
rename from include/camera/CameraMetadata.h
rename to camera/include/camera/CameraMetadata.h
diff --git a/include/camera/CameraParameters.h b/camera/include/camera/CameraParameters.h
similarity index 100%
rename from include/camera/CameraParameters.h
rename to camera/include/camera/CameraParameters.h
diff --git a/include/camera/CameraParameters2.h b/camera/include/camera/CameraParameters2.h
similarity index 100%
rename from include/camera/CameraParameters2.h
rename to camera/include/camera/CameraParameters2.h
diff --git a/include/camera/CameraUtils.h b/camera/include/camera/CameraUtils.h
similarity index 100%
rename from include/camera/CameraUtils.h
rename to camera/include/camera/CameraUtils.h
diff --git a/camera/include/camera/CaptureResult.h b/camera/include/camera/CaptureResult.h
new file mode 100644
index 0000000..917d953
--- /dev/null
+++ b/camera/include/camera/CaptureResult.h
@@ -0,0 +1,114 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_CAPTURERESULT_H
+#define ANDROID_HARDWARE_CAPTURERESULT_H
+
+#include <utils/RefBase.h>
+#include <binder/Parcelable.h>
+#include <camera/CameraMetadata.h>
+
+
+namespace android {
+
+namespace hardware {
+namespace camera2 {
+namespace impl {
+
+/**
+ * CaptureResultExtras is a structure to encapsulate various indices for a capture result.
+ * These indices are framework-internal and not sent to the HAL.
+ */
+struct CaptureResultExtras : public android::Parcelable {
+    /**
+     * An integer to index the request sequence that this result belongs to.
+     */
+    int32_t requestId;
+
+    /**
+     * An integer to index this result inside a request sequence, starting from 0.
+     */
+    int32_t burstId;
+
+    /**
+     * TODO: Add documentation for this field.
+     */
+    int32_t afTriggerId;
+
+    /**
+     * TODO: Add documentation for this field.
+     */
+    int32_t precaptureTriggerId;
+
+    /**
+     * A 64bit integer to index the frame number associated with this result.
+     */
+    int64_t frameNumber;
+
+    /**
+     * The partial result count (index) for this capture result.
+     */
+    int32_t partialResultCount;
+
+    /**
+     * For buffer drop errors, the stream ID for the stream that lost a buffer.
+     * Otherwise -1.
+     */
+    int32_t errorStreamId;
+
+    /**
+     * Constructor initializes object as invalid by setting requestId to be -1.
+     */
+    CaptureResultExtras()
+        : requestId(-1),
+          burstId(0),
+          afTriggerId(0),
+          precaptureTriggerId(0),
+          frameNumber(0),
+          partialResultCount(0),
+          errorStreamId(-1) {
+    }
+
+    /**
+     * This function returns true if it's a valid CaptureResultExtras object.
+     * Otherwise, returns false. It is valid only when requestId is non-negative.
+     */
+    bool isValid();
+
+    virtual status_t                readFromParcel(const android::Parcel* parcel) override;
+    virtual status_t                writeToParcel(android::Parcel* parcel) const override;
+};
+} // namespace impl
+} // namespace camera2
+} // namespace hardware
+
+using hardware::camera2::impl::CaptureResultExtras;
+
+struct CaptureResult : public virtual LightRefBase<CaptureResult> {
+    CameraMetadata          mMetadata;
+    CaptureResultExtras     mResultExtras;
+
+    CaptureResult();
+
+    CaptureResult(const CaptureResult& otherResult);
+
+    status_t                readFromParcel(android::Parcel* parcel);
+    status_t                writeToParcel(android::Parcel* parcel) const;
+};
+
+}
+
+#endif /* ANDROID_HARDWARE_CAPTURERESULT_H */
diff --git a/include/camera/ICameraRecordingProxy.h b/camera/include/camera/ICameraRecordingProxy.h
similarity index 100%
rename from include/camera/ICameraRecordingProxy.h
rename to camera/include/camera/ICameraRecordingProxy.h
diff --git a/include/camera/ICameraRecordingProxyListener.h b/camera/include/camera/ICameraRecordingProxyListener.h
similarity index 100%
rename from include/camera/ICameraRecordingProxyListener.h
rename to camera/include/camera/ICameraRecordingProxyListener.h
diff --git a/include/camera/ICameraServiceProxy.h b/camera/include/camera/ICameraServiceProxy.h
similarity index 100%
rename from include/camera/ICameraServiceProxy.h
rename to camera/include/camera/ICameraServiceProxy.h
diff --git a/camera/include/camera/VendorTagDescriptor.h b/camera/include/camera/VendorTagDescriptor.h
new file mode 100644
index 0000000..adfc8c7
--- /dev/null
+++ b/camera/include/camera/VendorTagDescriptor.h
@@ -0,0 +1,173 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef VENDOR_TAG_DESCRIPTOR_H
+
+#include <binder/Parcelable.h>
+#include <utils/Vector.h>
+#include <utils/KeyedVector.h>
+#include <utils/String8.h>
+#include <utils/RefBase.h>
+#include <system/camera_vendor_tags.h>
+
+#include <stdint.h>
+
+namespace android {
+
+class VendorTagDescriptor;
+
+namespace hardware {
+namespace camera2 {
+namespace params {
+
+/**
+ * VendorTagDescriptor objects are parcelable containers for the vendor tag
+ * definitions provided, and are typically used to pass the vendor tag
+ * information enumerated by the HAL to clients of the camera service.
+ */
+class VendorTagDescriptor : public Parcelable {
+    public:
+        virtual ~VendorTagDescriptor();
+
+        VendorTagDescriptor();
+        VendorTagDescriptor(const VendorTagDescriptor& src);
+        VendorTagDescriptor& operator=(const VendorTagDescriptor& rhs);
+
+        void copyFrom(const VendorTagDescriptor& src);
+
+        /**
+         * The following 'get*' methods implement the corresponding
+         * functions defined in
+         * system/media/camera/include/system/camera_vendor_tags.h
+         */
+
+        // Returns the number of vendor tags defined.
+        int getTagCount() const;
+
+        // Returns an array containing the id's of vendor tags defined.
+        void getTagArray(uint32_t* tagArray) const;
+
+        // Returns the section name string for a given vendor tag id.
+        const char* getSectionName(uint32_t tag) const;
+
+        // Returns the tag name string for a given vendor tag id.
+        const char* getTagName(uint32_t tag) const;
+
+        // Returns the tag type for a given vendor tag id.
+        int getTagType(uint32_t tag) const;
+
+        /**
+         * Write the VendorTagDescriptor object into the given parcel.
+         *
+         * Returns OK on success, or a negative error code.
+         */
+        virtual status_t writeToParcel(
+                /*out*/
+                android::Parcel* parcel) const override;
+
+        /**
+         * Convenience method to get a vector containing all vendor tag
+         * sections, or an empty vector if none are defined.
+         * The pointer is valid for the lifetime of the VendorTagDescriptor,
+         * or until readParcel or copyFrom is invoked.
+         */
+        const SortedVector<String8>* getAllSectionNames() const;
+
+        /**
+         * Lookup the tag id for a given tag name and section.
+         *
+         * Returns OK on success, or a negative error code.
+         */
+        status_t lookupTag(const String8& name, const String8& section, /*out*/uint32_t* tag) const;
+
+        /**
+         * Dump the currently configured vendor tags to a file descriptor.
+         */
+        void dump(int fd, int verbosity, int indentation) const;
+
+        /**
+         * Read values VendorTagDescriptor object from the given parcel.
+         *
+         * Returns OK on success, or a negative error code.
+         */
+        virtual status_t readFromParcel(const android::Parcel* parcel) override;
+
+    protected:
+        KeyedVector<String8, KeyedVector<String8, uint32_t>*> mReverseMapping;
+        KeyedVector<uint32_t, String8> mTagToNameMap;
+        KeyedVector<uint32_t, uint32_t> mTagToSectionMap; // Value is offset in mSections
+        KeyedVector<uint32_t, int32_t> mTagToTypeMap;
+        SortedVector<String8> mSections;
+        // must be int32_t to be compatible with Parcel::writeInt32
+        int32_t mTagCount;
+
+        vendor_tag_ops mVendorOps;
+};
+} /* namespace params */
+} /* namespace camera2 */
+} /* namespace hardware */
+
+/**
+ * This version of VendorTagDescriptor must be stored in Android sp<>, and adds support for using it
+ * as a global tag descriptor.
+ *
+ * It's a child class of the basic hardware::camera2::params::VendorTagDescriptor since basic
+ * Parcelable objects cannot require being kept in an sp<> and still work with auto-generated AIDL
+ * interface implementations.
+ */
+class VendorTagDescriptor :
+            public ::android::hardware::camera2::params::VendorTagDescriptor,
+            public LightRefBase<VendorTagDescriptor> {
+
+  public:
+
+    /**
+     * Create a VendorTagDescriptor object from the given vendor_tag_ops_t
+     * struct.
+     *
+     * Returns OK on success, or a negative error code.
+     */
+    static status_t createDescriptorFromOps(const vendor_tag_ops_t* vOps,
+            /*out*/
+            sp<VendorTagDescriptor>& descriptor);
+
+    /**
+     * Sets the global vendor tag descriptor to use for this process.
+     * Camera metadata operations that access vendor tags will use the
+     * vendor tag definitions set this way.
+     *
+     * Returns OK on success, or a negative error code.
+     */
+    static status_t setAsGlobalVendorTagDescriptor(const sp<VendorTagDescriptor>& desc);
+
+    /**
+     * Returns the global vendor tag descriptor used by this process.
+     * This will contain NULL if no vendor tags are defined.
+     */
+    static sp<VendorTagDescriptor> getGlobalVendorTagDescriptor();
+
+    /**
+     * Clears the global vendor tag descriptor used by this process.
+     */
+    static void clearGlobalVendorTagDescriptor();
+
+};
+
+} /* namespace android */
+
+
+#define VENDOR_TAG_DESCRIPTOR_H
+#endif /* VENDOR_TAG_DESCRIPTOR_H */
diff --git a/camera/include/camera/android/hardware/ICamera.h b/camera/include/camera/android/hardware/ICamera.h
new file mode 100644
index 0000000..315669e
--- /dev/null
+++ b/camera/include/camera/android/hardware/ICamera.h
@@ -0,0 +1,154 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_ICAMERA_H
+#define ANDROID_HARDWARE_ICAMERA_H
+
+#include <utils/RefBase.h>
+#include <binder/IInterface.h>
+#include <binder/Parcel.h>
+#include <binder/IMemory.h>
+#include <binder/Status.h>
+#include <utils/String8.h>
+
+namespace android {
+
+class IGraphicBufferProducer;
+class Surface;
+
+namespace hardware {
+
+class ICameraClient;
+
+class ICamera: public android::IInterface
+{
+    /**
+     * Keep up-to-date with ICamera.aidl in frameworks/base
+     */
+public:
+    enum {
+        // Pass real YUV data in video buffers through ICameraClient.dataCallbackTimestamp().
+        VIDEO_BUFFER_MODE_DATA_CALLBACK_YUV = 0,
+        // Pass metadata in video buffers through ICameraClient.dataCallbackTimestamp().
+        VIDEO_BUFFER_MODE_DATA_CALLBACK_METADATA = 1,
+        // Pass video buffers through IGraphicBufferProducer set with setVideoTarget().
+        VIDEO_BUFFER_MODE_BUFFER_QUEUE = 2,
+    };
+
+    DECLARE_META_INTERFACE(Camera);
+
+    virtual binder::Status  disconnect() = 0;
+
+    // connect new client with existing camera remote
+    virtual status_t        connect(const sp<ICameraClient>& client) = 0;
+
+    // prevent other processes from using this ICamera interface
+    virtual status_t        lock() = 0;
+
+    // allow other processes to use this ICamera interface
+    virtual status_t        unlock() = 0;
+
+    // pass the buffered IGraphicBufferProducer to the camera service
+    virtual status_t        setPreviewTarget(
+            const sp<IGraphicBufferProducer>& bufferProducer) = 0;
+
+    // set the preview callback flag to affect how the received frames from
+    // preview are handled. Enabling preview callback flags disables any active
+    // preview callback surface set by setPreviewCallbackTarget().
+    virtual void            setPreviewCallbackFlag(int flag) = 0;
+    // set a buffer interface to use for client-received preview frames instead
+    // of preview callback buffers. Passing a valid interface here disables any
+    // active preview callbacks set by setPreviewCallbackFlag(). Passing NULL
+    // disables the use of the callback target.
+    virtual status_t        setPreviewCallbackTarget(
+            const sp<IGraphicBufferProducer>& callbackProducer) = 0;
+
+    // start preview mode, must call setPreviewTarget first
+    virtual status_t        startPreview() = 0;
+
+    // stop preview mode
+    virtual void            stopPreview() = 0;
+
+    // get preview state
+    virtual bool            previewEnabled() = 0;
+
+    // start recording mode
+    virtual status_t        startRecording() = 0;
+
+    // stop recording mode
+    virtual void            stopRecording() = 0;
+
+    // get recording state
+    virtual bool            recordingEnabled() = 0;
+
+    // Release a recording frame that was received via ICameraClient::dataCallbackTimestamp.
+    virtual void            releaseRecordingFrame(const sp<IMemory>& mem) = 0;
+
+    // Release a recording frame handle that was received via
+    // ICameraClient::recordingFrameHandleCallbackTimestamp.
+    virtual void            releaseRecordingFrameHandle(native_handle_t *handle) = 0;
+
+    // auto focus
+    virtual status_t        autoFocus() = 0;
+
+    // cancel auto focus
+    virtual status_t        cancelAutoFocus() = 0;
+
+    /*
+     * take a picture.
+     * @param msgType the message type an application selectively turn on/off
+     * on a photo-by-photo basis. The supported message types are:
+     * CAMERA_MSG_SHUTTER, CAMERA_MSG_RAW_IMAGE, CAMERA_MSG_COMPRESSED_IMAGE,
+     * and CAMERA_MSG_POSTVIEW_FRAME. Any other message types will be ignored.
+     */
+    virtual status_t        takePicture(int msgType) = 0;
+
+    // set preview/capture parameters - key/value pairs
+    virtual status_t        setParameters(const String8& params) = 0;
+
+    // get preview/capture parameters - key/value pairs
+    virtual String8         getParameters() const = 0;
+
+    // send command to camera driver
+    virtual status_t        sendCommand(int32_t cmd, int32_t arg1, int32_t arg2) = 0;
+
+
+    // Tell camera how to pass video buffers. videoBufferMode is one of VIDEO_BUFFER_MODE_*.
+    // Returns OK if the specified video buffer mode is supported. If videoBufferMode is
+    // VIDEO_BUFFER_MODE_BUFFER_QUEUE, setVideoTarget() must be called before starting video
+    // recording.
+    virtual status_t        setVideoBufferMode(int32_t videoBufferMode) = 0;
+
+    // Set the video buffer producer for camera to use in VIDEO_BUFFER_MODE_BUFFER_QUEUE mode.
+    virtual status_t        setVideoTarget(
+            const sp<IGraphicBufferProducer>& bufferProducer) = 0;
+};
+
+// ----------------------------------------------------------------------------
+
+class BnCamera: public android::BnInterface<ICamera>
+{
+public:
+    virtual status_t    onTransact( uint32_t code,
+                                    const Parcel& data,
+                                    Parcel* reply,
+                                    uint32_t flags = 0);
+};
+
+} // namespace hardware
+} // namespace android
+
+#endif
diff --git a/camera/include/camera/android/hardware/ICameraClient.h b/camera/include/camera/android/hardware/ICameraClient.h
new file mode 100644
index 0000000..f6ee311
--- /dev/null
+++ b/camera/include/camera/android/hardware/ICameraClient.h
@@ -0,0 +1,60 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_ICAMERA_APP_H
+#define ANDROID_HARDWARE_ICAMERA_APP_H
+
+#include <utils/RefBase.h>
+#include <binder/IInterface.h>
+#include <binder/Parcel.h>
+#include <binder/IMemory.h>
+#include <utils/Timers.h>
+#include <system/camera.h>
+
+namespace android {
+namespace hardware {
+
+class ICameraClient: public android::IInterface
+{
+public:
+    DECLARE_META_INTERFACE(CameraClient);
+
+    virtual void            notifyCallback(int32_t msgType, int32_t ext1, int32_t ext2) = 0;
+    virtual void            dataCallback(int32_t msgType, const sp<IMemory>& data,
+                                         camera_frame_metadata_t *metadata) = 0;
+    virtual void            dataCallbackTimestamp(nsecs_t timestamp, int32_t msgType, const sp<IMemory>& data) = 0;
+
+    // Invoked to send a recording frame handle with a timestamp. Call
+    // ICamera::releaseRecordingFrameHandle to release the frame handle.
+    virtual void            recordingFrameHandleCallbackTimestamp(nsecs_t timestamp,
+                                         native_handle_t* handle) = 0;
+};
+
+// ----------------------------------------------------------------------------
+
+class BnCameraClient: public android::BnInterface<ICameraClient>
+{
+public:
+    virtual status_t    onTransact( uint32_t code,
+                                    const Parcel& data,
+                                    Parcel* reply,
+                                    uint32_t flags = 0);
+};
+
+} // namespace hardware
+} // namespace android
+
+#endif
diff --git a/camera/include/camera/camera2/CaptureRequest.h b/camera/include/camera/camera2/CaptureRequest.h
new file mode 100644
index 0000000..0180183
--- /dev/null
+++ b/camera/include/camera/camera2/CaptureRequest.h
@@ -0,0 +1,66 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_PHOTOGRAPHY_CAPTUREREQUEST_H
+#define ANDROID_HARDWARE_PHOTOGRAPHY_CAPTUREREQUEST_H
+
+#include <utils/RefBase.h>
+#include <utils/Vector.h>
+#include <binder/Parcelable.h>
+#include <camera/CameraMetadata.h>
+
+namespace android {
+
+class Surface;
+
+namespace hardware {
+namespace camera2 {
+
+struct CaptureRequest : public Parcelable {
+
+    // those are needed so we can use a forward declaration of Surface, otherwise
+    // the type is incomplete when the ctor/dtors are generated. This has the added
+    // benefit that ctor/dtors are not inlined, which is good because they're not trivial
+    // (because of the vtable and Vector<>)
+    CaptureRequest();
+    CaptureRequest(const CaptureRequest& rhs);
+    CaptureRequest(CaptureRequest&& rhs) noexcept;
+    virtual ~CaptureRequest();
+
+    CameraMetadata          mMetadata;
+    Vector<sp<Surface> >    mSurfaceList;
+    bool                    mIsReprocess;
+
+    /**
+     * Keep impl up-to-date with CaptureRequest.java in frameworks/base
+     */
+    status_t                readFromParcel(const android::Parcel* parcel) override;
+    status_t                writeToParcel(android::Parcel* parcel) const override;
+};
+
+} // namespace camera2
+} // namespace hardware
+
+struct CaptureRequest :
+        public RefBase, public hardware::camera2::CaptureRequest {
+  public:
+    // Same as android::hardware::camera2::CaptureRequest, except that you can
+    // put this in an sp<>
+};
+
+} // namespace android
+
+#endif
diff --git a/camera/include/camera/camera2/OutputConfiguration.h b/camera/include/camera/camera2/OutputConfiguration.h
new file mode 100644
index 0000000..8e641c7
--- /dev/null
+++ b/camera/include/camera/camera2/OutputConfiguration.h
@@ -0,0 +1,134 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_CAMERA2_OUTPUTCONFIGURATION_H
+#define ANDROID_HARDWARE_CAMERA2_OUTPUTCONFIGURATION_H
+
+#include <gui/IGraphicBufferProducer.h>
+#include <binder/Parcelable.h>
+
+namespace android {
+
+class Surface;
+
+namespace hardware {
+namespace camera2 {
+namespace params {
+
+class OutputConfiguration : public android::Parcelable {
+public:
+
+    static const int INVALID_ROTATION;
+    static const int INVALID_SET_ID;
+    enum SurfaceType{
+        SURFACE_TYPE_UNKNOWN = -1,
+        SURFACE_TYPE_SURFACE_VIEW = 0,
+        SURFACE_TYPE_SURFACE_TEXTURE = 1
+    };
+    const std::vector<sp<IGraphicBufferProducer>>& getGraphicBufferProducers() const;
+    int                        getRotation() const;
+    int                        getSurfaceSetID() const;
+    int                        getSurfaceType() const;
+    int                        getWidth() const;
+    int                        getHeight() const;
+    bool                       isDeferred() const;
+    bool                       isShared() const;
+    /**
+     * Keep impl up-to-date with OutputConfiguration.java in frameworks/base
+     */
+    virtual status_t           writeToParcel(android::Parcel* parcel) const override;
+
+    virtual status_t           readFromParcel(const android::Parcel* parcel) override;
+
+    // getGraphicBufferProducer will be NULL
+    // getRotation will be INVALID_ROTATION
+    // getSurfaceSetID will be INVALID_SET_ID
+    OutputConfiguration();
+
+    // getGraphicBufferProducer will be NULL if error occurred
+    // getRotation will be INVALID_ROTATION if error occurred
+    // getSurfaceSetID will be INVALID_SET_ID if error occurred
+    OutputConfiguration(const android::Parcel& parcel);
+
+    OutputConfiguration(sp<IGraphicBufferProducer>& gbp, int rotation,
+            int surfaceSetID = INVALID_SET_ID);
+
+    bool operator == (const OutputConfiguration& other) const {
+        return ( mRotation == other.mRotation &&
+                mSurfaceSetID == other.mSurfaceSetID &&
+                mSurfaceType == other.mSurfaceType &&
+                mWidth == other.mWidth &&
+                mHeight == other.mHeight &&
+                mIsDeferred == other.mIsDeferred &&
+                mIsShared == other.mIsShared &&
+                gbpsEqual(other));
+    }
+    bool operator != (const OutputConfiguration& other) const {
+        return !(*this == other);
+    }
+    bool operator < (const OutputConfiguration& other) const {
+        if (*this == other) return false;
+        if (mSurfaceSetID != other.mSurfaceSetID) {
+            return mSurfaceSetID < other.mSurfaceSetID;
+        }
+        if (mSurfaceType != other.mSurfaceType) {
+            return mSurfaceType < other.mSurfaceType;
+        }
+        if (mWidth != other.mWidth) {
+            return mWidth < other.mWidth;
+        }
+        if (mHeight != other.mHeight) {
+            return mHeight < other.mHeight;
+        }
+        if (mRotation != other.mRotation) {
+            return mRotation < other.mRotation;
+        }
+        if (mIsDeferred != other.mIsDeferred) {
+            return mIsDeferred < other.mIsDeferred;
+        }
+        if (mIsShared != other.mIsShared) {
+            return mIsShared < other.mIsShared;
+        }
+        return gbpsLessThan(other);
+    }
+    bool operator > (const OutputConfiguration& other) const {
+        return (*this != other && !(*this < other));
+    }
+
+    bool gbpsEqual(const OutputConfiguration& other) const;
+    bool gbpsLessThan(const OutputConfiguration& other) const;
+private:
+    std::vector<sp<IGraphicBufferProducer>> mGbps;
+    int                        mRotation;
+    int                        mSurfaceSetID;
+    int                        mSurfaceType;
+    int                        mWidth;
+    int                        mHeight;
+    bool                       mIsDeferred;
+    bool                       mIsShared;
+    // helper function
+    static String16 readMaybeEmptyString16(const android::Parcel* parcel);
+};
+} // namespace params
+} // namespace camera2
+} // namespace hardware
+
+
+using hardware::camera2::params::OutputConfiguration;
+
+}; // namespace android
+
+#endif
diff --git a/camera/include/camera/camera2/SubmitInfo.h b/camera/include/camera/camera2/SubmitInfo.h
new file mode 100644
index 0000000..8f271c0
--- /dev/null
+++ b/camera/include/camera/camera2/SubmitInfo.h
@@ -0,0 +1,44 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_CAMERA2_UTIL_SUBMITINFO_H
+#define ANDROID_HARDWARE_CAMERA2_UTIL_SUBMITINFO_H
+
+#include <binder/Parcel.h>
+#include <binder/Parcelable.h>
+
+namespace android {
+namespace hardware {
+namespace camera2 {
+namespace utils {
+
+struct SubmitInfo : public android::Parcelable {
+public:
+
+    int32_t mRequestId;
+    int64_t mLastFrameNumber;
+
+    virtual status_t writeToParcel(android::Parcel *parcel) const override;
+    virtual status_t readFromParcel(const android::Parcel* parcel) override;
+
+};
+
+} // namespace utils
+} // namespace camera2
+} // namespace hardware
+} // namespace android
+
+#endif
diff --git a/include/camera/ndk/NdkCameraCaptureSession.h b/camera/include/camera/ndk/NdkCameraCaptureSession.h
similarity index 100%
rename from include/camera/ndk/NdkCameraCaptureSession.h
rename to camera/include/camera/ndk/NdkCameraCaptureSession.h
diff --git a/include/camera/ndk/NdkCameraDevice.h b/camera/include/camera/ndk/NdkCameraDevice.h
similarity index 100%
rename from include/camera/ndk/NdkCameraDevice.h
rename to camera/include/camera/ndk/NdkCameraDevice.h
diff --git a/include/camera/ndk/NdkCameraError.h b/camera/include/camera/ndk/NdkCameraError.h
similarity index 100%
rename from include/camera/ndk/NdkCameraError.h
rename to camera/include/camera/ndk/NdkCameraError.h
diff --git a/include/camera/ndk/NdkCameraManager.h b/camera/include/camera/ndk/NdkCameraManager.h
similarity index 100%
rename from include/camera/ndk/NdkCameraManager.h
rename to camera/include/camera/ndk/NdkCameraManager.h
diff --git a/include/camera/ndk/NdkCameraMetadata.h b/camera/include/camera/ndk/NdkCameraMetadata.h
similarity index 100%
rename from include/camera/ndk/NdkCameraMetadata.h
rename to camera/include/camera/ndk/NdkCameraMetadata.h
diff --git a/camera/include/camera/ndk/NdkCameraMetadataTags.h b/camera/include/camera/ndk/NdkCameraMetadataTags.h
new file mode 100644
index 0000000..ced6034
--- /dev/null
+++ b/camera/include/camera/ndk/NdkCameraMetadataTags.h
@@ -0,0 +1,6970 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * @addtogroup Camera
+ * @{
+ */
+
+/**
+ * @file NdkCameraMetadataTags.h
+ */
+
+/*
+ * This file defines an NDK API.
+ * Do not remove methods.
+ * Do not change method signatures.
+ * Do not change the value of constants.
+ * Do not change the size of any of the classes defined in here.
+ * Do not reference types that are not part of the NDK.
+ * Do not #include files that aren't part of the NDK.
+ */
+
+#ifndef _NDK_CAMERA_METADATA_TAGS_H
+#define _NDK_CAMERA_METADATA_TAGS_H
+
+#include <sys/cdefs.h>
+
+__BEGIN_DECLS
+
+#if __ANDROID_API__ >= 24
+
+typedef enum acamera_metadata_section {
+    ACAMERA_COLOR_CORRECTION,
+    ACAMERA_CONTROL,
+    ACAMERA_DEMOSAIC,
+    ACAMERA_EDGE,
+    ACAMERA_FLASH,
+    ACAMERA_FLASH_INFO,
+    ACAMERA_HOT_PIXEL,
+    ACAMERA_JPEG,
+    ACAMERA_LENS,
+    ACAMERA_LENS_INFO,
+    ACAMERA_NOISE_REDUCTION,
+    ACAMERA_QUIRKS,
+    ACAMERA_REQUEST,
+    ACAMERA_SCALER,
+    ACAMERA_SENSOR,
+    ACAMERA_SENSOR_INFO,
+    ACAMERA_SHADING,
+    ACAMERA_STATISTICS,
+    ACAMERA_STATISTICS_INFO,
+    ACAMERA_TONEMAP,
+    ACAMERA_LED,
+    ACAMERA_INFO,
+    ACAMERA_BLACK_LEVEL,
+    ACAMERA_SYNC,
+    ACAMERA_REPROCESS,
+    ACAMERA_DEPTH,
+    ACAMERA_SECTION_COUNT,
+
+    ACAMERA_VENDOR = 0x8000
+} acamera_metadata_section_t;
+
+/**
+ * Hierarchy positions in enum space.
+ */
+typedef enum acamera_metadata_section_start {
+    ACAMERA_COLOR_CORRECTION_START = ACAMERA_COLOR_CORRECTION  << 16,
+    ACAMERA_CONTROL_START          = ACAMERA_CONTROL           << 16,
+    ACAMERA_DEMOSAIC_START         = ACAMERA_DEMOSAIC          << 16,
+    ACAMERA_EDGE_START             = ACAMERA_EDGE              << 16,
+    ACAMERA_FLASH_START            = ACAMERA_FLASH             << 16,
+    ACAMERA_FLASH_INFO_START       = ACAMERA_FLASH_INFO        << 16,
+    ACAMERA_HOT_PIXEL_START        = ACAMERA_HOT_PIXEL         << 16,
+    ACAMERA_JPEG_START             = ACAMERA_JPEG              << 16,
+    ACAMERA_LENS_START             = ACAMERA_LENS              << 16,
+    ACAMERA_LENS_INFO_START        = ACAMERA_LENS_INFO         << 16,
+    ACAMERA_NOISE_REDUCTION_START  = ACAMERA_NOISE_REDUCTION   << 16,
+    ACAMERA_QUIRKS_START           = ACAMERA_QUIRKS            << 16,
+    ACAMERA_REQUEST_START          = ACAMERA_REQUEST           << 16,
+    ACAMERA_SCALER_START           = ACAMERA_SCALER            << 16,
+    ACAMERA_SENSOR_START           = ACAMERA_SENSOR            << 16,
+    ACAMERA_SENSOR_INFO_START      = ACAMERA_SENSOR_INFO       << 16,
+    ACAMERA_SHADING_START          = ACAMERA_SHADING           << 16,
+    ACAMERA_STATISTICS_START       = ACAMERA_STATISTICS        << 16,
+    ACAMERA_STATISTICS_INFO_START  = ACAMERA_STATISTICS_INFO   << 16,
+    ACAMERA_TONEMAP_START          = ACAMERA_TONEMAP           << 16,
+    ACAMERA_LED_START              = ACAMERA_LED               << 16,
+    ACAMERA_INFO_START             = ACAMERA_INFO              << 16,
+    ACAMERA_BLACK_LEVEL_START      = ACAMERA_BLACK_LEVEL       << 16,
+    ACAMERA_SYNC_START             = ACAMERA_SYNC              << 16,
+    ACAMERA_REPROCESS_START        = ACAMERA_REPROCESS         << 16,
+    ACAMERA_DEPTH_START            = ACAMERA_DEPTH             << 16,
+    ACAMERA_VENDOR_START           = ACAMERA_VENDOR            << 16
+} acamera_metadata_section_start_t;
+
+/**
+ * Main enum for camera metadata tags.
+ */
+typedef enum acamera_metadata_tag {
+    /**
+     * <p>The mode control selects how the image data is converted from the
+     * sensor's native color into linear sRGB color.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul>
+     *
+     * <p>When auto-white balance (AWB) is enabled with ACAMERA_CONTROL_AWB_MODE, this
+     * control is overridden by the AWB routine. When AWB is disabled, the
+     * application controls how the color mapping is performed.</p>
+     * <p>We define the expected processing pipeline below. For consistency
+     * across devices, this is always the case with TRANSFORM_MATRIX.</p>
+     * <p>When either FULL or HIGH_QUALITY is used, the camera device may
+     * do additional processing but ACAMERA_COLOR_CORRECTION_GAINS and
+     * ACAMERA_COLOR_CORRECTION_TRANSFORM will still be provided by the
+     * camera device (in the results) and be roughly correct.</p>
+     * <p>Switching to TRANSFORM_MATRIX and using the data provided from
+     * FAST or HIGH_QUALITY will yield a picture with the same white point
+     * as what was produced by the camera device in the earlier frame.</p>
+     * <p>The expected processing pipeline is as follows:</p>
+     * <p><img alt="White balance processing pipeline" src="../images/camera2/metadata/android.colorCorrection.mode/processing_pipeline.png" /></p>
+     * <p>The white balance is encoded by two values, a 4-channel white-balance
+     * gain vector (applied in the Bayer domain), and a 3x3 color transform
+     * matrix (applied after demosaic).</p>
+     * <p>The 4-channel white-balance gains are defined as:</p>
+     * <pre><code>ACAMERA_COLOR_CORRECTION_GAINS = [ R G_even G_odd B ]
+     * </code></pre>
+     * <p>where <code>G_even</code> is the gain for green pixels on even rows of the
+     * output, and <code>G_odd</code> is the gain for green pixels on the odd rows.
+     * These may be identical for a given camera device implementation; if
+     * the camera device does not support a separate gain for even/odd green
+     * channels, it will use the <code>G_even</code> value, and write <code>G_odd</code> equal to
+     * <code>G_even</code> in the output result metadata.</p>
+     * <p>The matrices for color transforms are defined as a 9-entry vector:</p>
+     * <pre><code>ACAMERA_COLOR_CORRECTION_TRANSFORM = [ I0 I1 I2 I3 I4 I5 I6 I7 I8 ]
+     * </code></pre>
+     * <p>which define a transform from input sensor colors, <code>P_in = [ r g b ]</code>,
+     * to output linear sRGB, <code>P_out = [ r' g' b' ]</code>,</p>
+     * <p>with colors as follows:</p>
+     * <pre><code>r' = I0r + I1g + I2b
+     * g' = I3r + I4g + I5b
+     * b' = I6r + I7g + I8b
+     * </code></pre>
+     * <p>Both the input and output value ranges must match. Overflow/underflow
+     * values are clipped to fit within the range.</p>
+     *
+     * @see ACAMERA_COLOR_CORRECTION_GAINS
+     * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
+     * @see ACAMERA_CONTROL_AWB_MODE
+     */
+    ACAMERA_COLOR_CORRECTION_MODE =                             // byte (enum)
+            ACAMERA_COLOR_CORRECTION_START,
+    /**
+     * <p>A color transform matrix to use to transform
+     * from sensor RGB color space to output linear sRGB color space.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul>
+     *
+     * <p>This matrix is either set by the camera device when the request
+     * ACAMERA_COLOR_CORRECTION_MODE is not TRANSFORM_MATRIX, or
+     * directly by the application in the request when the
+     * ACAMERA_COLOR_CORRECTION_MODE is TRANSFORM_MATRIX.</p>
+     * <p>In the latter case, the camera device may round the matrix to account
+     * for precision issues; the final rounded matrix should be reported back
+     * in this matrix result metadata. The transform should keep the magnitude
+     * of the output color values within <code>[0, 1.0]</code> (assuming input color
+     * values is within the normalized range <code>[0, 1.0]</code>), or clipping may occur.</p>
+     * <p>The valid range of each matrix element varies on different devices, but
+     * values within [-1.5, 3.0] are guaranteed not to be clipped.</p>
+     *
+     * @see ACAMERA_COLOR_CORRECTION_MODE
+     */
+    ACAMERA_COLOR_CORRECTION_TRANSFORM =                        // rational[3*3]
+            ACAMERA_COLOR_CORRECTION_START + 1,
+    /**
+     * <p>Gains applying to Bayer raw color channels for
+     * white-balance.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul>
+     *
+     * <p>These per-channel gains are either set by the camera device
+     * when the request ACAMERA_COLOR_CORRECTION_MODE is not
+     * TRANSFORM_MATRIX, or directly by the application in the
+     * request when the ACAMERA_COLOR_CORRECTION_MODE is
+     * TRANSFORM_MATRIX.</p>
+     * <p>The gains in the result metadata are the gains actually
+     * applied by the camera device to the current frame.</p>
+     * <p>The valid range of gains varies on different devices, but gains
+     * between [1.0, 3.0] are guaranteed not to be clipped. Even if a given
+     * device allows gains below 1.0, this is usually not recommended because
+     * this can create color artifacts.</p>
+     *
+     * @see ACAMERA_COLOR_CORRECTION_MODE
+     */
+    ACAMERA_COLOR_CORRECTION_GAINS =                            // float[4]
+            ACAMERA_COLOR_CORRECTION_START + 2,
+    /**
+     * <p>Mode of operation for the chromatic aberration correction algorithm.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul>
+     *
+     * <p>Chromatic (color) aberration is caused by the fact that different wavelengths of light
+     * can not focus on the same point after exiting from the lens. This metadata defines
+     * the high level control of chromatic aberration correction algorithm, which aims to
+     * minimize the chromatic artifacts that may occur along the object boundaries in an
+     * image.</p>
+     * <p>FAST/HIGH_QUALITY both mean that camera device determined aberration
+     * correction will be applied. HIGH_QUALITY mode indicates that the camera device will
+     * use the highest-quality aberration correction algorithms, even if it slows down
+     * capture rate. FAST means the camera device will not slow down capture rate when
+     * applying aberration correction.</p>
+     * <p>LEGACY devices will always be in FAST mode.</p>
+     */
+    ACAMERA_COLOR_CORRECTION_ABERRATION_MODE =                  // byte (enum)
+            ACAMERA_COLOR_CORRECTION_START + 3,
+    /**
+     * <p>List of aberration correction modes for ACAMERA_COLOR_CORRECTION_ABERRATION_MODE that are
+     * supported by this camera device.</p>
+     *
+     * @see ACAMERA_COLOR_CORRECTION_ABERRATION_MODE
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>This key lists the valid modes for ACAMERA_COLOR_CORRECTION_ABERRATION_MODE.  If no
+     * aberration correction modes are available for a device, this list will solely include
+     * OFF mode. All camera devices will support either OFF or FAST mode.</p>
+     * <p>Camera devices that support the MANUAL_POST_PROCESSING capability will always list
+     * OFF mode. This includes all FULL level devices.</p>
+     * <p>LEGACY devices will always only support FAST mode.</p>
+     *
+     * @see ACAMERA_COLOR_CORRECTION_ABERRATION_MODE
+     */
+    ACAMERA_COLOR_CORRECTION_AVAILABLE_ABERRATION_MODES =       // byte[n]
+            ACAMERA_COLOR_CORRECTION_START + 4,
+    ACAMERA_COLOR_CORRECTION_END,
+
+    /**
+     * <p>The desired setting for the camera device's auto-exposure
+     * algorithm's antibanding compensation.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul>
+     *
+     * <p>Some kinds of lighting fixtures, such as some fluorescent
+     * lights, flicker at the rate of the power supply frequency
+     * (60Hz or 50Hz, depending on country). While this is
+     * typically not noticeable to a person, it can be visible to
+     * a camera device. If a camera sets its exposure time to the
+     * wrong value, the flicker may become visible in the
+     * viewfinder as flicker or in a final captured image, as a
+     * set of variable-brightness bands across the image.</p>
+     * <p>Therefore, the auto-exposure routines of camera devices
+     * include antibanding routines that ensure that the chosen
+     * exposure value will not cause such banding. The choice of
+     * exposure time depends on the rate of flicker, which the
+     * camera device can detect automatically, or the expected
+     * rate can be selected by the application using this
+     * control.</p>
+     * <p>A given camera device may not support all of the possible
+     * options for the antibanding mode. The
+     * ACAMERA_CONTROL_AE_AVAILABLE_ANTIBANDING_MODES key contains
+     * the available modes for a given camera device.</p>
+     * <p>AUTO mode is the default if it is available on given
+     * camera device. When AUTO mode is not available, the
+     * default will be either 50HZ or 60HZ, and both 50HZ
+     * and 60HZ will be available.</p>
+     * <p>If manual exposure control is enabled (by setting
+     * ACAMERA_CONTROL_AE_MODE or ACAMERA_CONTROL_MODE to OFF),
+     * then this setting has no effect, and the application must
+     * ensure it selects exposure times that do not cause banding
+     * issues. The ACAMERA_STATISTICS_SCENE_FLICKER key can assist
+     * the application in this.</p>
+     *
+     * @see ACAMERA_CONTROL_AE_AVAILABLE_ANTIBANDING_MODES
+     * @see ACAMERA_CONTROL_AE_MODE
+     * @see ACAMERA_CONTROL_MODE
+     * @see ACAMERA_STATISTICS_SCENE_FLICKER
+     */
+    ACAMERA_CONTROL_AE_ANTIBANDING_MODE =                       // byte (enum)
+            ACAMERA_CONTROL_START,
+    /**
+     * <p>Adjustment to auto-exposure (AE) target image
+     * brightness.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul>
+     *
+     * <p>The adjustment is measured as a count of steps, with the
+     * step size defined by ACAMERA_CONTROL_AE_COMPENSATION_STEP and the
+     * allowed range by ACAMERA_CONTROL_AE_COMPENSATION_RANGE.</p>
+     * <p>For example, if the exposure value (EV) step is 0.333, '6'
+     * will mean an exposure compensation of +2 EV; -3 will mean an
+     * exposure compensation of -1 EV. One EV represents a doubling
+     * of image brightness. Note that this control will only be
+     * effective if ACAMERA_CONTROL_AE_MODE <code>!=</code> OFF. This control
+     * will take effect even when ACAMERA_CONTROL_AE_LOCK <code>== true</code>.</p>
+     * <p>In the event of exposure compensation value being changed, camera device
+     * may take several frames to reach the newly requested exposure target.
+     * During that time, ACAMERA_CONTROL_AE_STATE field will be in the SEARCHING
+     * state. Once the new exposure target is reached, ACAMERA_CONTROL_AE_STATE will
+     * change from SEARCHING to either CONVERGED, LOCKED (if AE lock is enabled), or
+     * FLASH_REQUIRED (if the scene is too dark for still capture).</p>
+     *
+     * @see ACAMERA_CONTROL_AE_COMPENSATION_RANGE
+     * @see ACAMERA_CONTROL_AE_COMPENSATION_STEP
+     * @see ACAMERA_CONTROL_AE_LOCK
+     * @see ACAMERA_CONTROL_AE_MODE
+     * @see ACAMERA_CONTROL_AE_STATE
+     */
+    ACAMERA_CONTROL_AE_EXPOSURE_COMPENSATION =                  // int32
+            ACAMERA_CONTROL_START + 1,
+    /**
+     * <p>Whether auto-exposure (AE) is currently locked to its latest
+     * calculated values.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul>
+     *
+     * <p>When set to <code>true</code> (ON), the AE algorithm is locked to its latest parameters,
+     * and will not change exposure settings until the lock is set to <code>false</code> (OFF).</p>
+     * <p>Note that even when AE is locked, the flash may be fired if
+     * the ACAMERA_CONTROL_AE_MODE is ON_AUTO_FLASH /
+     * ON_ALWAYS_FLASH / ON_AUTO_FLASH_REDEYE.</p>
+     * <p>When ACAMERA_CONTROL_AE_EXPOSURE_COMPENSATION is changed, even if the AE lock
+     * is ON, the camera device will still adjust its exposure value.</p>
+     * <p>If AE precapture is triggered (see ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER)
+     * when AE is already locked, the camera device will not change the exposure time
+     * (ACAMERA_SENSOR_EXPOSURE_TIME) and sensitivity (ACAMERA_SENSOR_SENSITIVITY)
+     * parameters. The flash may be fired if the ACAMERA_CONTROL_AE_MODE
+     * is ON_AUTO_FLASH/ON_AUTO_FLASH_REDEYE and the scene is too dark. If the
+     * ACAMERA_CONTROL_AE_MODE is ON_ALWAYS_FLASH, the scene may become overexposed.
+     * Similarly, AE precapture trigger CANCEL has no effect when AE is already locked.</p>
+     * <p>When an AE precapture sequence is triggered, AE unlock will not be able to unlock
+     * the AE if AE is locked by the camera device internally during precapture metering
+     * sequence In other words, submitting requests with AE unlock has no effect for an
+     * ongoing precapture metering sequence. Otherwise, the precapture metering sequence
+     * will never succeed in a sequence of preview requests where AE lock is always set
+     * to <code>false</code>.</p>
+     * <p>Since the camera device has a pipeline of in-flight requests, the settings that
+     * get locked do not necessarily correspond to the settings that were present in the
+     * latest capture result received from the camera device, since additional captures
+     * and AE updates may have occurred even before the result was sent out. If an
+     * application is switching between automatic and manual control and wishes to eliminate
+     * any flicker during the switch, the following procedure is recommended:</p>
+     * <ol>
+     * <li>Starting in auto-AE mode:</li>
+     * <li>Lock AE</li>
+     * <li>Wait for the first result to be output that has the AE locked</li>
+     * <li>Copy exposure settings from that result into a request, set the request to manual AE</li>
+     * <li>Submit the capture request, proceed to run manual AE as desired.</li>
+     * </ol>
+     * <p>See ACAMERA_CONTROL_AE_STATE for AE lock related state transition details.</p>
+     *
+     * @see ACAMERA_CONTROL_AE_EXPOSURE_COMPENSATION
+     * @see ACAMERA_CONTROL_AE_MODE
+     * @see ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER
+     * @see ACAMERA_CONTROL_AE_STATE
+     * @see ACAMERA_SENSOR_EXPOSURE_TIME
+     * @see ACAMERA_SENSOR_SENSITIVITY
+     */
+    ACAMERA_CONTROL_AE_LOCK =                                   // byte (enum)
+            ACAMERA_CONTROL_START + 2,
+    /**
+     * <p>The desired mode for the camera device's
+     * auto-exposure routine.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul>
+     *
+     * <p>This control is only effective if ACAMERA_CONTROL_MODE is
+     * AUTO.</p>
+     * <p>When set to any of the ON modes, the camera device's
+     * auto-exposure routine is enabled, overriding the
+     * application's selected exposure time, sensor sensitivity,
+     * and frame duration (ACAMERA_SENSOR_EXPOSURE_TIME,
+     * ACAMERA_SENSOR_SENSITIVITY, and
+     * ACAMERA_SENSOR_FRAME_DURATION). If one of the FLASH modes
+     * is selected, the camera device's flash unit controls are
+     * also overridden.</p>
+     * <p>The FLASH modes are only available if the camera device
+     * has a flash unit (ACAMERA_FLASH_INFO_AVAILABLE is <code>true</code>).</p>
+     * <p>If flash TORCH mode is desired, this field must be set to
+     * ON or OFF, and ACAMERA_FLASH_MODE set to TORCH.</p>
+     * <p>When set to any of the ON modes, the values chosen by the
+     * camera device auto-exposure routine for the overridden
+     * fields for a given capture will be available in its
+     * CaptureResult.</p>
+     *
+     * @see ACAMERA_CONTROL_MODE
+     * @see ACAMERA_FLASH_INFO_AVAILABLE
+     * @see ACAMERA_FLASH_MODE
+     * @see ACAMERA_SENSOR_EXPOSURE_TIME
+     * @see ACAMERA_SENSOR_FRAME_DURATION
+     * @see ACAMERA_SENSOR_SENSITIVITY
+     */
+    ACAMERA_CONTROL_AE_MODE =                                   // byte (enum)
+            ACAMERA_CONTROL_START + 3,
+    /**
+     * <p>List of metering areas to use for auto-exposure adjustment.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul>
+     *
+     * <p>Not available if android.control.maxRegionsAe is 0.
+     * Otherwise will always be present.</p>
+     * <p>The maximum number of regions supported by the device is determined by the value
+     * of android.control.maxRegionsAe.</p>
+     * <p>The data representation is int[5 * area_count].
+     * Every five elements represent a metering region of (xmin, ymin, xmax, ymax, weight).
+     * The rectangle is defined to be inclusive on xmin and ymin, but exclusive on xmax and
+     * ymax.</p>
+     * <p>The coordinate system is based on the active pixel array,
+     * with (0,0) being the top-left pixel in the active pixel array, and
+     * (ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE.width - 1,
+     * ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE.height - 1) being the
+     * bottom-right pixel in the active pixel array.</p>
+     * <p>The weight must be within <code>[0, 1000]</code>, and represents a weight
+     * for every pixel in the area. This means that a large metering area
+     * with the same weight as a smaller area will have more effect in
+     * the metering result. Metering areas can partially overlap and the
+     * camera device will add the weights in the overlap region.</p>
+     * <p>The weights are relative to weights of other exposure metering regions, so if only one
+     * region is used, all non-zero weights will have the same effect. A region with 0
+     * weight is ignored.</p>
+     * <p>If all regions have 0 weight, then no specific metering area needs to be used by the
+     * camera device.</p>
+     * <p>If the metering region is outside the used ACAMERA_SCALER_CROP_REGION returned in
+     * capture result metadata, the camera device will ignore the sections outside the crop
+     * region and output only the intersection rectangle as the metering region in the result
+     * metadata.  If the region is entirely outside the crop region, it will be ignored and
+     * not reported in the result metadata.</p>
+     *
+     * @see ACAMERA_SCALER_CROP_REGION
+     * @see ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
+     */
+    ACAMERA_CONTROL_AE_REGIONS =                                // int32[5*area_count]
+            ACAMERA_CONTROL_START + 4,
+    /**
+     * <p>Range over which the auto-exposure routine can
+     * adjust the capture frame rate to maintain good
+     * exposure.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul>
+     *
+     * <p>Only constrains auto-exposure (AE) algorithm, not
+     * manual control of ACAMERA_SENSOR_EXPOSURE_TIME and
+     * ACAMERA_SENSOR_FRAME_DURATION.</p>
+     *
+     * @see ACAMERA_SENSOR_EXPOSURE_TIME
+     * @see ACAMERA_SENSOR_FRAME_DURATION
+     */
+    ACAMERA_CONTROL_AE_TARGET_FPS_RANGE =                       // int32[2]
+            ACAMERA_CONTROL_START + 5,
+    /**
+     * <p>Whether the camera device will trigger a precapture
+     * metering sequence when it processes this request.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul>
+     *
+     * <p>This entry is normally set to IDLE, or is not
+     * included at all in the request settings. When included and
+     * set to START, the camera device will trigger the auto-exposure (AE)
+     * precapture metering sequence.</p>
+     * <p>When set to CANCEL, the camera device will cancel any active
+     * precapture metering trigger, and return to its initial AE state.
+     * If a precapture metering sequence is already completed, and the camera
+     * device has implicitly locked the AE for subsequent still capture, the
+     * CANCEL trigger will unlock the AE and return to its initial AE state.</p>
+     * <p>The precapture sequence should be triggered before starting a
+     * high-quality still capture for final metering decisions to
+     * be made, and for firing pre-capture flash pulses to estimate
+     * scene brightness and required final capture flash power, when
+     * the flash is enabled.</p>
+     * <p>Normally, this entry should be set to START for only a
+     * single request, and the application should wait until the
+     * sequence completes before starting a new one.</p>
+     * <p>When a precapture metering sequence is finished, the camera device
+     * may lock the auto-exposure routine internally to be able to accurately expose the
+     * subsequent still capture image (<code>ACAMERA_CONTROL_CAPTURE_INTENT == STILL_CAPTURE</code>).
+     * For this case, the AE may not resume normal scan if no subsequent still capture is
+     * submitted. To ensure that the AE routine restarts normal scan, the application should
+     * submit a request with <code>ACAMERA_CONTROL_AE_LOCK == true</code>, followed by a request
+     * with <code>ACAMERA_CONTROL_AE_LOCK == false</code>, if the application decides not to submit a
+     * still capture request after the precapture sequence completes. Alternatively, for
+     * API level 23 or newer devices, the CANCEL can be used to unlock the camera device
+     * internally locked AE if the application doesn't submit a still capture request after
+     * the AE precapture trigger. Note that, the CANCEL was added in API level 23, and must not
+     * be used in devices that have earlier API levels.</p>
+     * <p>The exact effect of auto-exposure (AE) precapture trigger
+     * depends on the current AE mode and state; see
+     * ACAMERA_CONTROL_AE_STATE for AE precapture state transition
+     * details.</p>
+     * <p>On LEGACY-level devices, the precapture trigger is not supported;
+     * capturing a high-resolution JPEG image will automatically trigger a
+     * precapture sequence before the high-resolution capture, including
+     * potentially firing a pre-capture flash.</p>
+     * <p>Using the precapture trigger and the auto-focus trigger ACAMERA_CONTROL_AF_TRIGGER
+     * simultaneously is allowed. However, since these triggers often require cooperation between
+     * the auto-focus and auto-exposure routines (for example, the may need to be enabled for a
+     * focus sweep), the camera device may delay acting on a later trigger until the previous
+     * trigger has been fully handled. This may lead to longer intervals between the trigger and
+     * changes to ACAMERA_CONTROL_AE_STATE indicating the start of the precapture sequence, for
+     * example.</p>
+     * <p>If both the precapture and the auto-focus trigger are activated on the same request, then
+     * the camera device will complete them in the optimal order for that device.</p>
+     *
+     * @see ACAMERA_CONTROL_AE_LOCK
+     * @see ACAMERA_CONTROL_AE_STATE
+     * @see ACAMERA_CONTROL_AF_TRIGGER
+     * @see ACAMERA_CONTROL_CAPTURE_INTENT
+     */
+    ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER =                     // byte (enum)
+            ACAMERA_CONTROL_START + 6,
+    /**
+     * <p>Whether auto-focus (AF) is currently enabled, and what
+     * mode it is set to.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul>
+     *
+     * <p>Only effective if ACAMERA_CONTROL_MODE = AUTO and the lens is not fixed focus
+     * (i.e. <code>ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE &gt; 0</code>). Also note that
+     * when ACAMERA_CONTROL_AE_MODE is OFF, the behavior of AF is device
+     * dependent. It is recommended to lock AF by using ACAMERA_CONTROL_AF_TRIGGER before
+     * setting ACAMERA_CONTROL_AE_MODE to OFF, or set AF mode to OFF when AE is OFF.</p>
+     * <p>If the lens is controlled by the camera device auto-focus algorithm,
+     * the camera device will report the current AF status in ACAMERA_CONTROL_AF_STATE
+     * in result metadata.</p>
+     *
+     * @see ACAMERA_CONTROL_AE_MODE
+     * @see ACAMERA_CONTROL_AF_STATE
+     * @see ACAMERA_CONTROL_AF_TRIGGER
+     * @see ACAMERA_CONTROL_MODE
+     * @see ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE
+     */
+    ACAMERA_CONTROL_AF_MODE =                                   // byte (enum)
+            ACAMERA_CONTROL_START + 7,
+    /**
+     * <p>List of metering areas to use for auto-focus.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul>
+     *
+     * <p>Not available if android.control.maxRegionsAf is 0.
+     * Otherwise will always be present.</p>
+     * <p>The maximum number of focus areas supported by the device is determined by the value
+     * of android.control.maxRegionsAf.</p>
+     * <p>The data representation is int[5 * area_count].
+     * Every five elements represent a metering region of (xmin, ymin, xmax, ymax, weight).
+     * The rectangle is defined to be inclusive on xmin and ymin, but exclusive on xmax and
+     * ymax.</p>
+     * <p>The coordinate system is based on the active pixel array,
+     * with (0,0) being the top-left pixel in the active pixel array, and
+     * (ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE.width - 1,
+     * ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE.height - 1) being the
+     * bottom-right pixel in the active pixel array.</p>
+     * <p>The weight must be within <code>[0, 1000]</code>, and represents a weight
+     * for every pixel in the area. This means that a large metering area
+     * with the same weight as a smaller area will have more effect in
+     * the metering result. Metering areas can partially overlap and the
+     * camera device will add the weights in the overlap region.</p>
+     * <p>The weights are relative to weights of other metering regions, so if only one region
+     * is used, all non-zero weights will have the same effect. A region with 0 weight is
+     * ignored.</p>
+     * <p>If all regions have 0 weight, then no specific metering area needs to be used by the
+     * camera device.</p>
+     * <p>If the metering region is outside the used ACAMERA_SCALER_CROP_REGION returned in
+     * capture result metadata, the camera device will ignore the sections outside the crop
+     * region and output only the intersection rectangle as the metering region in the result
+     * metadata. If the region is entirely outside the crop region, it will be ignored and
+     * not reported in the result metadata.</p>
+     *
+     * @see ACAMERA_SCALER_CROP_REGION
+     * @see ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
+     */
+    ACAMERA_CONTROL_AF_REGIONS =                                // int32[5*area_count]
+            ACAMERA_CONTROL_START + 8,
+    /**
+     * <p>Whether the camera device will trigger autofocus for this request.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul>
+     *
+     * <p>This entry is normally set to IDLE, or is not
+     * included at all in the request settings.</p>
+     * <p>When included and set to START, the camera device will trigger the
+     * autofocus algorithm. If autofocus is disabled, this trigger has no effect.</p>
+     * <p>When set to CANCEL, the camera device will cancel any active trigger,
+     * and return to its initial AF state.</p>
+     * <p>Generally, applications should set this entry to START or CANCEL for only a
+     * single capture, and then return it to IDLE (or not set at all). Specifying
+     * START for multiple captures in a row means restarting the AF operation over
+     * and over again.</p>
+     * <p>See ACAMERA_CONTROL_AF_STATE for what the trigger means for each AF mode.</p>
+     * <p>Using the autofocus trigger and the precapture trigger ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER
+     * simultaneously is allowed. However, since these triggers often require cooperation between
+     * the auto-focus and auto-exposure routines (for example, the may need to be enabled for a
+     * focus sweep), the camera device may delay acting on a later trigger until the previous
+     * trigger has been fully handled. This may lead to longer intervals between the trigger and
+     * changes to ACAMERA_CONTROL_AF_STATE, for example.</p>
+     *
+     * @see ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER
+     * @see ACAMERA_CONTROL_AF_STATE
+     */
+    ACAMERA_CONTROL_AF_TRIGGER =                                // byte (enum)
+            ACAMERA_CONTROL_START + 9,
+    /**
+     * <p>Whether auto-white balance (AWB) is currently locked to its
+     * latest calculated values.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul>
+     *
+     * <p>When set to <code>true</code> (ON), the AWB algorithm is locked to its latest parameters,
+     * and will not change color balance settings until the lock is set to <code>false</code> (OFF).</p>
+     * <p>Since the camera device has a pipeline of in-flight requests, the settings that
+     * get locked do not necessarily correspond to the settings that were present in the
+     * latest capture result received from the camera device, since additional captures
+     * and AWB updates may have occurred even before the result was sent out. If an
+     * application is switching between automatic and manual control and wishes to eliminate
+     * any flicker during the switch, the following procedure is recommended:</p>
+     * <ol>
+     * <li>Starting in auto-AWB mode:</li>
+     * <li>Lock AWB</li>
+     * <li>Wait for the first result to be output that has the AWB locked</li>
+     * <li>Copy AWB settings from that result into a request, set the request to manual AWB</li>
+     * <li>Submit the capture request, proceed to run manual AWB as desired.</li>
+     * </ol>
+     * <p>Note that AWB lock is only meaningful when
+     * ACAMERA_CONTROL_AWB_MODE is in the AUTO mode; in other modes,
+     * AWB is already fixed to a specific setting.</p>
+     * <p>Some LEGACY devices may not support ON; the value is then overridden to OFF.</p>
+     *
+     * @see ACAMERA_CONTROL_AWB_MODE
+     */
+    ACAMERA_CONTROL_AWB_LOCK =                                  // byte (enum)
+            ACAMERA_CONTROL_START + 10,
+    /**
+     * <p>Whether auto-white balance (AWB) is currently setting the color
+     * transform fields, and what its illumination target
+     * is.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul>
+     *
+     * <p>This control is only effective if ACAMERA_CONTROL_MODE is AUTO.</p>
+     * <p>When set to the ON mode, the camera device's auto-white balance
+     * routine is enabled, overriding the application's selected
+     * ACAMERA_COLOR_CORRECTION_TRANSFORM, ACAMERA_COLOR_CORRECTION_GAINS and
+     * ACAMERA_COLOR_CORRECTION_MODE. Note that when ACAMERA_CONTROL_AE_MODE
+     * is OFF, the behavior of AWB is device dependent. It is recommened to
+     * also set AWB mode to OFF or lock AWB by using ACAMERA_CONTROL_AWB_LOCK before
+     * setting AE mode to OFF.</p>
+     * <p>When set to the OFF mode, the camera device's auto-white balance
+     * routine is disabled. The application manually controls the white
+     * balance by ACAMERA_COLOR_CORRECTION_TRANSFORM, ACAMERA_COLOR_CORRECTION_GAINS
+     * and ACAMERA_COLOR_CORRECTION_MODE.</p>
+     * <p>When set to any other modes, the camera device's auto-white
+     * balance routine is disabled. The camera device uses each
+     * particular illumination target for white balance
+     * adjustment. The application's values for
+     * ACAMERA_COLOR_CORRECTION_TRANSFORM,
+     * ACAMERA_COLOR_CORRECTION_GAINS and
+     * ACAMERA_COLOR_CORRECTION_MODE are ignored.</p>
+     *
+     * @see ACAMERA_COLOR_CORRECTION_GAINS
+     * @see ACAMERA_COLOR_CORRECTION_MODE
+     * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
+     * @see ACAMERA_CONTROL_AE_MODE
+     * @see ACAMERA_CONTROL_AWB_LOCK
+     * @see ACAMERA_CONTROL_MODE
+     */
+    ACAMERA_CONTROL_AWB_MODE =                                  // byte (enum)
+            ACAMERA_CONTROL_START + 11,
+    /**
+     * <p>List of metering areas to use for auto-white-balance illuminant
+     * estimation.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul>
+     *
+     * <p>Not available if android.control.maxRegionsAwb is 0.
+     * Otherwise will always be present.</p>
+     * <p>The maximum number of regions supported by the device is determined by the value
+     * of android.control.maxRegionsAwb.</p>
+     * <p>The data representation is int[5 * area_count].
+     * Every five elements represent a metering region of (xmin, ymin, xmax, ymax, weight).
+     * The rectangle is defined to be inclusive on xmin and ymin, but exclusive on xmax and
+     * ymax.</p>
+     * <p>The coordinate system is based on the active pixel array,
+     * with (0,0) being the top-left pixel in the active pixel array, and
+     * (ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE.width - 1,
+     * ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE.height - 1) being the
+     * bottom-right pixel in the active pixel array.</p>
+     * <p>The weight must range from 0 to 1000, and represents a weight
+     * for every pixel in the area. This means that a large metering area
+     * with the same weight as a smaller area will have more effect in
+     * the metering result. Metering areas can partially overlap and the
+     * camera device will add the weights in the overlap region.</p>
+     * <p>The weights are relative to weights of other white balance metering regions, so if
+     * only one region is used, all non-zero weights will have the same effect. A region with
+     * 0 weight is ignored.</p>
+     * <p>If all regions have 0 weight, then no specific metering area needs to be used by the
+     * camera device.</p>
+     * <p>If the metering region is outside the used ACAMERA_SCALER_CROP_REGION returned in
+     * capture result metadata, the camera device will ignore the sections outside the crop
+     * region and output only the intersection rectangle as the metering region in the result
+     * metadata.  If the region is entirely outside the crop region, it will be ignored and
+     * not reported in the result metadata.</p>
+     *
+     * @see ACAMERA_SCALER_CROP_REGION
+     * @see ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
+     */
+    ACAMERA_CONTROL_AWB_REGIONS =                               // int32[5*area_count]
+            ACAMERA_CONTROL_START + 12,
+    /**
+     * <p>Information to the camera device 3A (auto-exposure,
+     * auto-focus, auto-white balance) routines about the purpose
+     * of this capture, to help the camera device to decide optimal 3A
+     * strategy.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul>
+     *
+     * <p>This control (except for MANUAL) is only effective if
+     * <code>ACAMERA_CONTROL_MODE != OFF</code> and any 3A routine is active.</p>
+     * <p>ZERO_SHUTTER_LAG will be supported if ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
+     * contains PRIVATE_REPROCESSING or YUV_REPROCESSING. MANUAL will be supported if
+     * ACAMERA_REQUEST_AVAILABLE_CAPABILITIES contains MANUAL_SENSOR. Other intent values are
+     * always supported.</p>
+     *
+     * @see ACAMERA_CONTROL_MODE
+     * @see ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
+     */
+    ACAMERA_CONTROL_CAPTURE_INTENT =                            // byte (enum)
+            ACAMERA_CONTROL_START + 13,
+    /**
+     * <p>A special color effect to apply.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul>
+     *
+     * <p>When this mode is set, a color effect will be applied
+     * to images produced by the camera device. The interpretation
+     * and implementation of these color effects is left to the
+     * implementor of the camera device, and should not be
+     * depended on to be consistent (or present) across all
+     * devices.</p>
+     */
+    ACAMERA_CONTROL_EFFECT_MODE =                               // byte (enum)
+            ACAMERA_CONTROL_START + 14,
+    /**
+     * <p>Overall mode of 3A (auto-exposure, auto-white-balance, auto-focus) control
+     * routines.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul>
+     *
+     * <p>This is a top-level 3A control switch. When set to OFF, all 3A control
+     * by the camera device is disabled. The application must set the fields for
+     * capture parameters itself.</p>
+     * <p>When set to AUTO, the individual algorithm controls in
+     * ACAMERA_CONTROL_* are in effect, such as ACAMERA_CONTROL_AF_MODE.</p>
+     * <p>When set to USE_SCENE_MODE, the individual controls in
+     * ACAMERA_CONTROL_* are mostly disabled, and the camera device implements
+     * one of the scene mode settings (such as ACTION, SUNSET, or PARTY)
+     * as it wishes. The camera device scene mode 3A settings are provided by
+     * capture results {@link ACameraMetadata} from
+     * {@link ACameraCaptureSession_captureCallback_result}.</p>
+     * <p>When set to OFF_KEEP_STATE, it is similar to OFF mode, the only difference
+     * is that this frame will not be used by camera device background 3A statistics
+     * update, as if this frame is never captured. This mode can be used in the scenario
+     * where the application doesn't want a 3A manual control capture to affect
+     * the subsequent auto 3A capture results.</p>
+     *
+     * @see ACAMERA_CONTROL_AF_MODE
+     */
+    ACAMERA_CONTROL_MODE =                                      // byte (enum)
+            ACAMERA_CONTROL_START + 15,
+    /**
+     * <p>Control for which scene mode is currently active.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul>
+     *
+     * <p>Scene modes are custom camera modes optimized for a certain set of conditions and
+     * capture settings.</p>
+     * <p>This is the mode that that is active when
+     * <code>ACAMERA_CONTROL_MODE == USE_SCENE_MODE</code>. Aside from FACE_PRIORITY, these modes will
+     * disable ACAMERA_CONTROL_AE_MODE, ACAMERA_CONTROL_AWB_MODE, and ACAMERA_CONTROL_AF_MODE
+     * while in use.</p>
+     * <p>The interpretation and implementation of these scene modes is left
+     * to the implementor of the camera device. Their behavior will not be
+     * consistent across all devices, and any given device may only implement
+     * a subset of these modes.</p>
+     *
+     * @see ACAMERA_CONTROL_AE_MODE
+     * @see ACAMERA_CONTROL_AF_MODE
+     * @see ACAMERA_CONTROL_AWB_MODE
+     * @see ACAMERA_CONTROL_MODE
+     */
+    ACAMERA_CONTROL_SCENE_MODE =                                // byte (enum)
+            ACAMERA_CONTROL_START + 16,
+    /**
+     * <p>Whether video stabilization is
+     * active.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul>
+     *
+     * <p>Video stabilization automatically warps images from
+     * the camera in order to stabilize motion between consecutive frames.</p>
+     * <p>If enabled, video stabilization can modify the
+     * ACAMERA_SCALER_CROP_REGION to keep the video stream stabilized.</p>
+     * <p>Switching between different video stabilization modes may take several
+     * frames to initialize, the camera device will report the current mode
+     * in capture result metadata. For example, When "ON" mode is requested,
+     * the video stabilization modes in the first several capture results may
+     * still be "OFF", and it will become "ON" when the initialization is
+     * done.</p>
+     * <p>In addition, not all recording sizes or frame rates may be supported for
+     * stabilization by a device that reports stabilization support. It is guaranteed
+     * that an output targeting a MediaRecorder or MediaCodec will be stabilized if
+     * the recording resolution is less than or equal to 1920 x 1080 (width less than
+     * or equal to 1920, height less than or equal to 1080), and the recording
+     * frame rate is less than or equal to 30fps.  At other sizes, the CaptureResult
+     * ACAMERA_CONTROL_VIDEO_STABILIZATION_MODE field will return
+     * OFF if the recording output is not stabilized, or if there are no output
+     * Surface types that can be stabilized.</p>
+     * <p>If a camera device supports both this mode and OIS
+     * (ACAMERA_LENS_OPTICAL_STABILIZATION_MODE), turning both modes on may
+     * produce undesirable interaction, so it is recommended not to enable
+     * both at the same time.</p>
+     *
+     * @see ACAMERA_CONTROL_VIDEO_STABILIZATION_MODE
+     * @see ACAMERA_LENS_OPTICAL_STABILIZATION_MODE
+     * @see ACAMERA_SCALER_CROP_REGION
+     */
+    ACAMERA_CONTROL_VIDEO_STABILIZATION_MODE =                  // byte (enum)
+            ACAMERA_CONTROL_START + 17,
+    /**
+     * <p>List of auto-exposure antibanding modes for ACAMERA_CONTROL_AE_ANTIBANDING_MODE that are
+     * supported by this camera device.</p>
+     *
+     * @see ACAMERA_CONTROL_AE_ANTIBANDING_MODE
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>Not all of the auto-exposure anti-banding modes may be
+     * supported by a given camera device. This field lists the
+     * valid anti-banding modes that the application may request
+     * for this camera device with the
+     * ACAMERA_CONTROL_AE_ANTIBANDING_MODE control.</p>
+     *
+     * @see ACAMERA_CONTROL_AE_ANTIBANDING_MODE
+     */
+    ACAMERA_CONTROL_AE_AVAILABLE_ANTIBANDING_MODES =            // byte[n]
+            ACAMERA_CONTROL_START + 18,
+    /**
+     * <p>List of auto-exposure modes for ACAMERA_CONTROL_AE_MODE that are supported by this camera
+     * device.</p>
+     *
+     * @see ACAMERA_CONTROL_AE_MODE
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>Not all the auto-exposure modes may be supported by a
+     * given camera device, especially if no flash unit is
+     * available. This entry lists the valid modes for
+     * ACAMERA_CONTROL_AE_MODE for this camera device.</p>
+     * <p>All camera devices support ON, and all camera devices with flash
+     * units support ON_AUTO_FLASH and ON_ALWAYS_FLASH.</p>
+     * <p>FULL mode camera devices always support OFF mode,
+     * which enables application control of camera exposure time,
+     * sensitivity, and frame duration.</p>
+     * <p>LEGACY mode camera devices never support OFF mode.
+     * LIMITED mode devices support OFF if they support the MANUAL_SENSOR
+     * capability.</p>
+     *
+     * @see ACAMERA_CONTROL_AE_MODE
+     */
+    ACAMERA_CONTROL_AE_AVAILABLE_MODES =                        // byte[n]
+            ACAMERA_CONTROL_START + 19,
+    /**
+     * <p>List of frame rate ranges for ACAMERA_CONTROL_AE_TARGET_FPS_RANGE supported by
+     * this camera device.</p>
+     *
+     * @see ACAMERA_CONTROL_AE_TARGET_FPS_RANGE
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>For devices at the LEGACY level or above:</p>
+     * <ul>
+     * <li>
+     * <p>For constant-framerate recording, for each normal
+     * <a href="https://developer.android.com/reference/android/media/CamcorderProfile.html">CamcorderProfile</a>, that is, a
+     * <a href="https://developer.android.com/reference/android/media/CamcorderProfile.html">CamcorderProfile</a> that has
+     * <a href="https://developer.android.com/reference/android/media/CamcorderProfile.html#quality">quality</a>
+     * in the range [
+     * <a href="https://developer.android.com/reference/android/media/CamcorderProfile.html#QUALITY_LOW">QUALITY_LOW</a>,
+     * <a href="https://developer.android.com/reference/android/media/CamcorderProfile.html#QUALITY_2160P">QUALITY_2160P</a>],
+     * if the profile is supported by the device and has
+     * <a href="https://developer.android.com/reference/android/media/CamcorderProfile.html#videoFrameRate">videoFrameRate</a>
+     * <code>x</code>, this list will always include (<code>x</code>,<code>x</code>).</p>
+     * </li>
+     * <li>
+     * <p>Also, a camera device must either not support any
+     * <a href="https://developer.android.com/reference/android/media/CamcorderProfile.html">CamcorderProfile</a>,
+     * or support at least one
+     * normal <a href="https://developer.android.com/reference/android/media/CamcorderProfile.html">CamcorderProfile</a>
+     * that has
+     * <a href="https://developer.android.com/reference/android/media/CamcorderProfile.html#videoFrameRate">videoFrameRate</a> <code>x</code> &gt;= 24.</p>
+     * </li>
+     * </ul>
+     * <p>For devices at the LIMITED level or above:</p>
+     * <ul>
+     * <li>For YUV_420_888 burst capture use case, this list will always include (<code>min</code>, <code>max</code>)
+     * and (<code>max</code>, <code>max</code>) where <code>min</code> &lt;= 15 and <code>max</code> = the maximum output frame rate of the
+     * maximum YUV_420_888 output size.</li>
+     * </ul>
+     */
+    ACAMERA_CONTROL_AE_AVAILABLE_TARGET_FPS_RANGES =            // int32[2*n]
+            ACAMERA_CONTROL_START + 20,
+    /**
+     * <p>Maximum and minimum exposure compensation values for
+     * ACAMERA_CONTROL_AE_EXPOSURE_COMPENSATION, in counts of ACAMERA_CONTROL_AE_COMPENSATION_STEP,
+     * that are supported by this camera device.</p>
+     *
+     * @see ACAMERA_CONTROL_AE_COMPENSATION_STEP
+     * @see ACAMERA_CONTROL_AE_EXPOSURE_COMPENSATION
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>None</p>
+     */
+    ACAMERA_CONTROL_AE_COMPENSATION_RANGE =                     // int32[2]
+            ACAMERA_CONTROL_START + 21,
+    /**
+     * <p>Smallest step by which the exposure compensation
+     * can be changed.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>This is the unit for ACAMERA_CONTROL_AE_EXPOSURE_COMPENSATION. For example, if this key has
+     * a value of <code>1/2</code>, then a setting of <code>-2</code> for ACAMERA_CONTROL_AE_EXPOSURE_COMPENSATION means
+     * that the target EV offset for the auto-exposure routine is -1 EV.</p>
+     * <p>One unit of EV compensation changes the brightness of the captured image by a factor
+     * of two. +1 EV doubles the image brightness, while -1 EV halves the image brightness.</p>
+     *
+     * @see ACAMERA_CONTROL_AE_EXPOSURE_COMPENSATION
+     */
+    ACAMERA_CONTROL_AE_COMPENSATION_STEP =                      // rational
+            ACAMERA_CONTROL_START + 22,
+    /**
+     * <p>List of auto-focus (AF) modes for ACAMERA_CONTROL_AF_MODE that are
+     * supported by this camera device.</p>
+     *
+     * @see ACAMERA_CONTROL_AF_MODE
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>Not all the auto-focus modes may be supported by a
+     * given camera device. This entry lists the valid modes for
+     * ACAMERA_CONTROL_AF_MODE for this camera device.</p>
+     * <p>All LIMITED and FULL mode camera devices will support OFF mode, and all
+     * camera devices with adjustable focuser units
+     * (<code>ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE &gt; 0</code>) will support AUTO mode.</p>
+     * <p>LEGACY devices will support OFF mode only if they support
+     * focusing to infinity (by also setting ACAMERA_LENS_FOCUS_DISTANCE to
+     * <code>0.0f</code>).</p>
+     *
+     * @see ACAMERA_CONTROL_AF_MODE
+     * @see ACAMERA_LENS_FOCUS_DISTANCE
+     * @see ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE
+     */
+    ACAMERA_CONTROL_AF_AVAILABLE_MODES =                        // byte[n]
+            ACAMERA_CONTROL_START + 23,
+    /**
+     * <p>List of color effects for ACAMERA_CONTROL_EFFECT_MODE that are supported by this camera
+     * device.</p>
+     *
+     * @see ACAMERA_CONTROL_EFFECT_MODE
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>This list contains the color effect modes that can be applied to
+     * images produced by the camera device.
+     * Implementations are not expected to be consistent across all devices.
+     * If no color effect modes are available for a device, this will only list
+     * OFF.</p>
+     * <p>A color effect will only be applied if
+     * ACAMERA_CONTROL_MODE != OFF.  OFF is always included in this list.</p>
+     * <p>This control has no effect on the operation of other control routines such
+     * as auto-exposure, white balance, or focus.</p>
+     *
+     * @see ACAMERA_CONTROL_MODE
+     */
+    ACAMERA_CONTROL_AVAILABLE_EFFECTS =                         // byte[n]
+            ACAMERA_CONTROL_START + 24,
+    /**
+     * <p>List of scene modes for ACAMERA_CONTROL_SCENE_MODE that are supported by this camera
+     * device.</p>
+     *
+     * @see ACAMERA_CONTROL_SCENE_MODE
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>This list contains scene modes that can be set for the camera device.
+     * Only scene modes that have been fully implemented for the
+     * camera device may be included here. Implementations are not expected
+     * to be consistent across all devices.</p>
+     * <p>If no scene modes are supported by the camera device, this
+     * will be set to DISABLED. Otherwise DISABLED will not be listed.</p>
+     * <p>FACE_PRIORITY is always listed if face detection is
+     * supported (i.e.<code>ACAMERA_STATISTICS_INFO_MAX_FACE_COUNT &gt;
+     * 0</code>).</p>
+     *
+     * @see ACAMERA_STATISTICS_INFO_MAX_FACE_COUNT
+     */
+    ACAMERA_CONTROL_AVAILABLE_SCENE_MODES =                     // byte[n]
+            ACAMERA_CONTROL_START + 25,
+    /**
+     * <p>List of video stabilization modes for ACAMERA_CONTROL_VIDEO_STABILIZATION_MODE
+     * that are supported by this camera device.</p>
+     *
+     * @see ACAMERA_CONTROL_VIDEO_STABILIZATION_MODE
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>OFF will always be listed.</p>
+     */
+    ACAMERA_CONTROL_AVAILABLE_VIDEO_STABILIZATION_MODES =       // byte[n]
+            ACAMERA_CONTROL_START + 26,
+    /**
+     * <p>List of auto-white-balance modes for ACAMERA_CONTROL_AWB_MODE that are supported by this
+     * camera device.</p>
+     *
+     * @see ACAMERA_CONTROL_AWB_MODE
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>Not all the auto-white-balance modes may be supported by a
+     * given camera device. This entry lists the valid modes for
+     * ACAMERA_CONTROL_AWB_MODE for this camera device.</p>
+     * <p>All camera devices will support ON mode.</p>
+     * <p>Camera devices that support the MANUAL_POST_PROCESSING capability will always support OFF
+     * mode, which enables application control of white balance, by using
+     * ACAMERA_COLOR_CORRECTION_TRANSFORM and ACAMERA_COLOR_CORRECTION_GAINS(ACAMERA_COLOR_CORRECTION_MODE must be set to TRANSFORM_MATRIX). This includes all FULL
+     * mode camera devices.</p>
+     *
+     * @see ACAMERA_COLOR_CORRECTION_GAINS
+     * @see ACAMERA_COLOR_CORRECTION_MODE
+     * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
+     * @see ACAMERA_CONTROL_AWB_MODE
+     */
+    ACAMERA_CONTROL_AWB_AVAILABLE_MODES =                       // byte[n]
+            ACAMERA_CONTROL_START + 27,
+    /**
+     * <p>List of the maximum number of regions that can be used for metering in
+     * auto-exposure (AE), auto-white balance (AWB), and auto-focus (AF);
+     * this corresponds to the the maximum number of elements in
+     * ACAMERA_CONTROL_AE_REGIONS, ACAMERA_CONTROL_AWB_REGIONS,
+     * and ACAMERA_CONTROL_AF_REGIONS.</p>
+     *
+     * @see ACAMERA_CONTROL_AE_REGIONS
+     * @see ACAMERA_CONTROL_AF_REGIONS
+     * @see ACAMERA_CONTROL_AWB_REGIONS
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>None</p>
+     */
+    ACAMERA_CONTROL_MAX_REGIONS =                               // int32[3]
+            ACAMERA_CONTROL_START + 28,
+    /**
+     * <p>Current state of the auto-exposure (AE) algorithm.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     * </ul>
+     *
+     * <p>Switching between or enabling AE modes (ACAMERA_CONTROL_AE_MODE) always
+     * resets the AE state to INACTIVE. Similarly, switching between ACAMERA_CONTROL_MODE,
+     * or ACAMERA_CONTROL_SCENE_MODE if <code>ACAMERA_CONTROL_MODE == USE_SCENE_MODE</code> resets all
+     * the algorithm states to INACTIVE.</p>
+     * <p>The camera device can do several state transitions between two results, if it is
+     * allowed by the state transition table. For example: INACTIVE may never actually be
+     * seen in a result.</p>
+     * <p>The state in the result is the state for this image (in sync with this image): if
+     * AE state becomes CONVERGED, then the image data associated with this result should
+     * be good to use.</p>
+     * <p>Below are state transition tables for different AE modes.</p>
+     * <p>State       | Transition Cause | New State | Notes
+     * :------------:|:----------------:|:---------:|:-----------------------:
+     * INACTIVE      |                  | INACTIVE  | Camera device auto exposure algorithm is disabled</p>
+     * <p>When ACAMERA_CONTROL_AE_MODE is AE_MODE_ON_*:</p>
+     * <p>State        | Transition Cause                             | New State      | Notes
+     * :-------------:|:--------------------------------------------:|:--------------:|:-----------------:
+     * INACTIVE       | Camera device initiates AE scan              | SEARCHING      | Values changing
+     * INACTIVE       | ACAMERA_CONTROL_AE_LOCK is ON                 | LOCKED         | Values locked
+     * SEARCHING      | Camera device finishes AE scan               | CONVERGED      | Good values, not changing
+     * SEARCHING      | Camera device finishes AE scan               | FLASH_REQUIRED | Converged but too dark w/o flash
+     * SEARCHING      | ACAMERA_CONTROL_AE_LOCK is ON                 | LOCKED         | Values locked
+     * CONVERGED      | Camera device initiates AE scan              | SEARCHING      | Values changing
+     * CONVERGED      | ACAMERA_CONTROL_AE_LOCK is ON                 | LOCKED         | Values locked
+     * FLASH_REQUIRED | Camera device initiates AE scan              | SEARCHING      | Values changing
+     * FLASH_REQUIRED | ACAMERA_CONTROL_AE_LOCK is ON                 | LOCKED         | Values locked
+     * LOCKED         | ACAMERA_CONTROL_AE_LOCK is OFF                | SEARCHING      | Values not good after unlock
+     * LOCKED         | ACAMERA_CONTROL_AE_LOCK is OFF                | CONVERGED      | Values good after unlock
+     * LOCKED         | ACAMERA_CONTROL_AE_LOCK is OFF                | FLASH_REQUIRED | Exposure good, but too dark
+     * PRECAPTURE     | Sequence done. ACAMERA_CONTROL_AE_LOCK is OFF | CONVERGED      | Ready for high-quality capture
+     * PRECAPTURE     | Sequence done. ACAMERA_CONTROL_AE_LOCK is ON  | LOCKED         | Ready for high-quality capture
+     * LOCKED         | aeLock is ON and aePrecaptureTrigger is START | LOCKED        | Precapture trigger is ignored when AE is already locked
+     * LOCKED         | aeLock is ON and aePrecaptureTrigger is CANCEL| LOCKED        | Precapture trigger is ignored when AE is already locked
+     * Any state (excluding LOCKED) | ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER is START | PRECAPTURE     | Start AE precapture metering sequence
+     * Any state (excluding LOCKED) | ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER is CANCEL| INACTIVE       | Currently active precapture metering sequence is canceled</p>
+     * <p>For the above table, the camera device may skip reporting any state changes that happen
+     * without application intervention (i.e. mode switch, trigger, locking). Any state that
+     * can be skipped in that manner is called a transient state.</p>
+     * <p>For example, for above AE modes (AE_MODE_ON_*), in addition to the state transitions
+     * listed in above table, it is also legal for the camera device to skip one or more
+     * transient states between two results. See below table for examples:</p>
+     * <p>State        | Transition Cause                                            | New State      | Notes
+     * :-------------:|:-----------------------------------------------------------:|:--------------:|:-----------------:
+     * INACTIVE       | Camera device finished AE scan                              | CONVERGED      | Values are already good, transient states are skipped by camera device.
+     * Any state (excluding LOCKED) | ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER is START, sequence done | FLASH_REQUIRED | Converged but too dark w/o flash after a precapture sequence, transient states are skipped by camera device.
+     * Any state (excluding LOCKED) | ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER is START, sequence done | CONVERGED      | Converged after a precapture sequence, transient states are skipped by camera device.
+     * Any state (excluding LOCKED) | ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER is CANCEL, converged    | FLASH_REQUIRED | Converged but too dark w/o flash after a precapture sequence is canceled, transient states are skipped by camera device.
+     * Any state (excluding LOCKED) | ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER is CANCEL, converged    | CONVERGED      | Converged after a precapture sequenceis canceled, transient states are skipped by camera device.
+     * CONVERGED      | Camera device finished AE scan                              | FLASH_REQUIRED | Converged but too dark w/o flash after a new scan, transient states are skipped by camera device.
+     * FLASH_REQUIRED | Camera device finished AE scan                              | CONVERGED      | Converged after a new scan, transient states are skipped by camera device.</p>
+     *
+     * @see ACAMERA_CONTROL_AE_LOCK
+     * @see ACAMERA_CONTROL_AE_MODE
+     * @see ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER
+     * @see ACAMERA_CONTROL_MODE
+     * @see ACAMERA_CONTROL_SCENE_MODE
+     */
+    ACAMERA_CONTROL_AE_STATE =                                  // byte (enum)
+            ACAMERA_CONTROL_START + 31,
+    /**
+     * <p>Current state of auto-focus (AF) algorithm.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     * </ul>
+     *
+     * <p>Switching between or enabling AF modes (ACAMERA_CONTROL_AF_MODE) always
+     * resets the AF state to INACTIVE. Similarly, switching between ACAMERA_CONTROL_MODE,
+     * or ACAMERA_CONTROL_SCENE_MODE if <code>ACAMERA_CONTROL_MODE == USE_SCENE_MODE</code> resets all
+     * the algorithm states to INACTIVE.</p>
+     * <p>The camera device can do several state transitions between two results, if it is
+     * allowed by the state transition table. For example: INACTIVE may never actually be
+     * seen in a result.</p>
+     * <p>The state in the result is the state for this image (in sync with this image): if
+     * AF state becomes FOCUSED, then the image data associated with this result should
+     * be sharp.</p>
+     * <p>Below are state transition tables for different AF modes.</p>
+     * <p>When ACAMERA_CONTROL_AF_MODE is AF_MODE_OFF or AF_MODE_EDOF:</p>
+     * <p>State       | Transition Cause | New State | Notes
+     * :------------:|:----------------:|:---------:|:-----------:
+     * INACTIVE      |                  | INACTIVE  | Never changes</p>
+     * <p>When ACAMERA_CONTROL_AF_MODE is AF_MODE_AUTO or AF_MODE_MACRO:</p>
+     * <p>State            | Transition Cause | New State          | Notes
+     * :-----------------:|:----------------:|:------------------:|:--------------:
+     * INACTIVE           | AF_TRIGGER       | ACTIVE_SCAN        | Start AF sweep, Lens now moving
+     * ACTIVE_SCAN        | AF sweep done    | FOCUSED_LOCKED     | Focused, Lens now locked
+     * ACTIVE_SCAN        | AF sweep done    | NOT_FOCUSED_LOCKED | Not focused, Lens now locked
+     * ACTIVE_SCAN        | AF_CANCEL        | INACTIVE           | Cancel/reset AF, Lens now locked
+     * FOCUSED_LOCKED     | AF_CANCEL        | INACTIVE           | Cancel/reset AF
+     * FOCUSED_LOCKED     | AF_TRIGGER       | ACTIVE_SCAN        | Start new sweep, Lens now moving
+     * NOT_FOCUSED_LOCKED | AF_CANCEL        | INACTIVE           | Cancel/reset AF
+     * NOT_FOCUSED_LOCKED | AF_TRIGGER       | ACTIVE_SCAN        | Start new sweep, Lens now moving
+     * Any state          | Mode change      | INACTIVE           |</p>
+     * <p>For the above table, the camera device may skip reporting any state changes that happen
+     * without application intervention (i.e. mode switch, trigger, locking). Any state that
+     * can be skipped in that manner is called a transient state.</p>
+     * <p>For example, for these AF modes (AF_MODE_AUTO and AF_MODE_MACRO), in addition to the
+     * state transitions listed in above table, it is also legal for the camera device to skip
+     * one or more transient states between two results. See below table for examples:</p>
+     * <p>State            | Transition Cause | New State          | Notes
+     * :-----------------:|:----------------:|:------------------:|:--------------:
+     * INACTIVE           | AF_TRIGGER       | FOCUSED_LOCKED     | Focus is already good or good after a scan, lens is now locked.
+     * INACTIVE           | AF_TRIGGER       | NOT_FOCUSED_LOCKED | Focus failed after a scan, lens is now locked.
+     * FOCUSED_LOCKED     | AF_TRIGGER       | FOCUSED_LOCKED     | Focus is already good or good after a scan, lens is now locked.
+     * NOT_FOCUSED_LOCKED | AF_TRIGGER       | FOCUSED_LOCKED     | Focus is good after a scan, lens is not locked.</p>
+     * <p>When ACAMERA_CONTROL_AF_MODE is AF_MODE_CONTINUOUS_VIDEO:</p>
+     * <p>State            | Transition Cause                    | New State          | Notes
+     * :-----------------:|:-----------------------------------:|:------------------:|:--------------:
+     * INACTIVE           | Camera device initiates new scan    | PASSIVE_SCAN       | Start AF scan, Lens now moving
+     * INACTIVE           | AF_TRIGGER                          | NOT_FOCUSED_LOCKED | AF state query, Lens now locked
+     * PASSIVE_SCAN       | Camera device completes current scan| PASSIVE_FOCUSED    | End AF scan, Lens now locked
+     * PASSIVE_SCAN       | Camera device fails current scan    | PASSIVE_UNFOCUSED  | End AF scan, Lens now locked
+     * PASSIVE_SCAN       | AF_TRIGGER                          | FOCUSED_LOCKED     | Immediate transition, if focus is good. Lens now locked
+     * PASSIVE_SCAN       | AF_TRIGGER                          | NOT_FOCUSED_LOCKED | Immediate transition, if focus is bad. Lens now locked
+     * PASSIVE_SCAN       | AF_CANCEL                           | INACTIVE           | Reset lens position, Lens now locked
+     * PASSIVE_FOCUSED    | Camera device initiates new scan    | PASSIVE_SCAN       | Start AF scan, Lens now moving
+     * PASSIVE_UNFOCUSED  | Camera device initiates new scan    | PASSIVE_SCAN       | Start AF scan, Lens now moving
+     * PASSIVE_FOCUSED    | AF_TRIGGER                          | FOCUSED_LOCKED     | Immediate transition, lens now locked
+     * PASSIVE_UNFOCUSED  | AF_TRIGGER                          | NOT_FOCUSED_LOCKED | Immediate transition, lens now locked
+     * FOCUSED_LOCKED     | AF_TRIGGER                          | FOCUSED_LOCKED     | No effect
+     * FOCUSED_LOCKED     | AF_CANCEL                           | INACTIVE           | Restart AF scan
+     * NOT_FOCUSED_LOCKED | AF_TRIGGER                          | NOT_FOCUSED_LOCKED | No effect
+     * NOT_FOCUSED_LOCKED | AF_CANCEL                           | INACTIVE           | Restart AF scan</p>
+     * <p>When ACAMERA_CONTROL_AF_MODE is AF_MODE_CONTINUOUS_PICTURE:</p>
+     * <p>State            | Transition Cause                     | New State          | Notes
+     * :-----------------:|:------------------------------------:|:------------------:|:--------------:
+     * INACTIVE           | Camera device initiates new scan     | PASSIVE_SCAN       | Start AF scan, Lens now moving
+     * INACTIVE           | AF_TRIGGER                           | NOT_FOCUSED_LOCKED | AF state query, Lens now locked
+     * PASSIVE_SCAN       | Camera device completes current scan | PASSIVE_FOCUSED    | End AF scan, Lens now locked
+     * PASSIVE_SCAN       | Camera device fails current scan     | PASSIVE_UNFOCUSED  | End AF scan, Lens now locked
+     * PASSIVE_SCAN       | AF_TRIGGER                           | FOCUSED_LOCKED     | Eventual transition once the focus is good. Lens now locked
+     * PASSIVE_SCAN       | AF_TRIGGER                           | NOT_FOCUSED_LOCKED | Eventual transition if cannot find focus. Lens now locked
+     * PASSIVE_SCAN       | AF_CANCEL                            | INACTIVE           | Reset lens position, Lens now locked
+     * PASSIVE_FOCUSED    | Camera device initiates new scan     | PASSIVE_SCAN       | Start AF scan, Lens now moving
+     * PASSIVE_UNFOCUSED  | Camera device initiates new scan     | PASSIVE_SCAN       | Start AF scan, Lens now moving
+     * PASSIVE_FOCUSED    | AF_TRIGGER                           | FOCUSED_LOCKED     | Immediate trans. Lens now locked
+     * PASSIVE_UNFOCUSED  | AF_TRIGGER                           | NOT_FOCUSED_LOCKED | Immediate trans. Lens now locked
+     * FOCUSED_LOCKED     | AF_TRIGGER                           | FOCUSED_LOCKED     | No effect
+     * FOCUSED_LOCKED     | AF_CANCEL                            | INACTIVE           | Restart AF scan
+     * NOT_FOCUSED_LOCKED | AF_TRIGGER                           | NOT_FOCUSED_LOCKED | No effect
+     * NOT_FOCUSED_LOCKED | AF_CANCEL                            | INACTIVE           | Restart AF scan</p>
+     * <p>When switch between AF_MODE_CONTINUOUS_* (CAF modes) and AF_MODE_AUTO/AF_MODE_MACRO
+     * (AUTO modes), the initial INACTIVE or PASSIVE_SCAN states may be skipped by the
+     * camera device. When a trigger is included in a mode switch request, the trigger
+     * will be evaluated in the context of the new mode in the request.
+     * See below table for examples:</p>
+     * <p>State      | Transition Cause                       | New State                                | Notes
+     * :-----------:|:--------------------------------------:|:----------------------------------------:|:--------------:
+     * any state    | CAF--&gt;AUTO mode switch                 | INACTIVE                                 | Mode switch without trigger, initial state must be INACTIVE
+     * any state    | CAF--&gt;AUTO mode switch with AF_TRIGGER | trigger-reachable states from INACTIVE   | Mode switch with trigger, INACTIVE is skipped
+     * any state    | AUTO--&gt;CAF mode switch                 | passively reachable states from INACTIVE | Mode switch without trigger, passive transient state is skipped</p>
+     *
+     * @see ACAMERA_CONTROL_AF_MODE
+     * @see ACAMERA_CONTROL_MODE
+     * @see ACAMERA_CONTROL_SCENE_MODE
+     */
+    ACAMERA_CONTROL_AF_STATE =                                  // byte (enum)
+            ACAMERA_CONTROL_START + 32,
+    /**
+     * <p>Current state of auto-white balance (AWB) algorithm.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     * </ul>
+     *
+     * <p>Switching between or enabling AWB modes (ACAMERA_CONTROL_AWB_MODE) always
+     * resets the AWB state to INACTIVE. Similarly, switching between ACAMERA_CONTROL_MODE,
+     * or ACAMERA_CONTROL_SCENE_MODE if <code>ACAMERA_CONTROL_MODE == USE_SCENE_MODE</code> resets all
+     * the algorithm states to INACTIVE.</p>
+     * <p>The camera device can do several state transitions between two results, if it is
+     * allowed by the state transition table. So INACTIVE may never actually be seen in
+     * a result.</p>
+     * <p>The state in the result is the state for this image (in sync with this image): if
+     * AWB state becomes CONVERGED, then the image data associated with this result should
+     * be good to use.</p>
+     * <p>Below are state transition tables for different AWB modes.</p>
+     * <p>When <code>ACAMERA_CONTROL_AWB_MODE != AWB_MODE_AUTO</code>:</p>
+     * <p>State       | Transition Cause | New State | Notes
+     * :------------:|:----------------:|:---------:|:-----------------------:
+     * INACTIVE      |                  |INACTIVE   |Camera device auto white balance algorithm is disabled</p>
+     * <p>When ACAMERA_CONTROL_AWB_MODE is AWB_MODE_AUTO:</p>
+     * <p>State        | Transition Cause                 | New State     | Notes
+     * :-------------:|:--------------------------------:|:-------------:|:-----------------:
+     * INACTIVE       | Camera device initiates AWB scan | SEARCHING     | Values changing
+     * INACTIVE       | ACAMERA_CONTROL_AWB_LOCK is ON    | LOCKED        | Values locked
+     * SEARCHING      | Camera device finishes AWB scan  | CONVERGED     | Good values, not changing
+     * SEARCHING      | ACAMERA_CONTROL_AWB_LOCK is ON    | LOCKED        | Values locked
+     * CONVERGED      | Camera device initiates AWB scan | SEARCHING     | Values changing
+     * CONVERGED      | ACAMERA_CONTROL_AWB_LOCK is ON    | LOCKED        | Values locked
+     * LOCKED         | ACAMERA_CONTROL_AWB_LOCK is OFF   | SEARCHING     | Values not good after unlock</p>
+     * <p>For the above table, the camera device may skip reporting any state changes that happen
+     * without application intervention (i.e. mode switch, trigger, locking). Any state that
+     * can be skipped in that manner is called a transient state.</p>
+     * <p>For example, for this AWB mode (AWB_MODE_AUTO), in addition to the state transitions
+     * listed in above table, it is also legal for the camera device to skip one or more
+     * transient states between two results. See below table for examples:</p>
+     * <p>State        | Transition Cause                 | New State     | Notes
+     * :-------------:|:--------------------------------:|:-------------:|:-----------------:
+     * INACTIVE       | Camera device finished AWB scan  | CONVERGED     | Values are already good, transient states are skipped by camera device.
+     * LOCKED         | ACAMERA_CONTROL_AWB_LOCK is OFF   | CONVERGED     | Values good after unlock, transient states are skipped by camera device.</p>
+     *
+     * @see ACAMERA_CONTROL_AWB_LOCK
+     * @see ACAMERA_CONTROL_AWB_MODE
+     * @see ACAMERA_CONTROL_MODE
+     * @see ACAMERA_CONTROL_SCENE_MODE
+     */
+    ACAMERA_CONTROL_AWB_STATE =                                 // byte (enum)
+            ACAMERA_CONTROL_START + 34,
+    /**
+     * <p>Whether the camera device supports ACAMERA_CONTROL_AE_LOCK</p>
+     *
+     * @see ACAMERA_CONTROL_AE_LOCK
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>Devices with MANUAL_SENSOR capability or BURST_CAPTURE capability will always
+     * list <code>true</code>. This includes FULL devices.</p>
+     */
+    ACAMERA_CONTROL_AE_LOCK_AVAILABLE =                         // byte (enum)
+            ACAMERA_CONTROL_START + 36,
+    /**
+     * <p>Whether the camera device supports ACAMERA_CONTROL_AWB_LOCK</p>
+     *
+     * @see ACAMERA_CONTROL_AWB_LOCK
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>Devices with MANUAL_POST_PROCESSING capability or BURST_CAPTURE capability will
+     * always list <code>true</code>. This includes FULL devices.</p>
+     */
+    ACAMERA_CONTROL_AWB_LOCK_AVAILABLE =                        // byte (enum)
+            ACAMERA_CONTROL_START + 37,
+    /**
+     * <p>List of control modes for ACAMERA_CONTROL_MODE that are supported by this camera
+     * device.</p>
+     *
+     * @see ACAMERA_CONTROL_MODE
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>This list contains control modes that can be set for the camera device.
+     * LEGACY mode devices will always support AUTO mode. LIMITED and FULL
+     * devices will always support OFF, AUTO modes.</p>
+     */
+    ACAMERA_CONTROL_AVAILABLE_MODES =                           // byte[n]
+            ACAMERA_CONTROL_START + 38,
+    /**
+     * <p>Range of boosts for ACAMERA_CONTROL_POST_RAW_SENSITIVITY_BOOST supported
+     * by this camera device.</p>
+     *
+     * @see ACAMERA_CONTROL_POST_RAW_SENSITIVITY_BOOST
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>Devices support post RAW sensitivity boost  will advertise
+     * ACAMERA_CONTROL_POST_RAW_SENSITIVITY_BOOST key for controling
+     * post RAW sensitivity boost.</p>
+     * <p>This key will be <code>null</code> for devices that do not support any RAW format
+     * outputs. For devices that do support RAW format outputs, this key will always
+     * present, and if a device does not support post RAW sensitivity boost, it will
+     * list <code>(100, 100)</code> in this key.</p>
+     *
+     * @see ACAMERA_CONTROL_POST_RAW_SENSITIVITY_BOOST
+     */
+    ACAMERA_CONTROL_POST_RAW_SENSITIVITY_BOOST_RANGE =          // int32[2]
+            ACAMERA_CONTROL_START + 39,
+    /**
+     * <p>The amount of additional sensitivity boost applied to output images
+     * after RAW sensor data is captured.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul>
+     *
+     * <p>Some camera devices support additional digital sensitivity boosting in the
+     * camera processing pipeline after sensor RAW image is captured.
+     * Such a boost will be applied to YUV/JPEG format output images but will not
+     * have effect on RAW output formats like RAW_SENSOR, RAW10, RAW12 or RAW_OPAQUE.</p>
+     * <p>This key will be <code>null</code> for devices that do not support any RAW format
+     * outputs. For devices that do support RAW format outputs, this key will always
+     * present, and if a device does not support post RAW sensitivity boost, it will
+     * list <code>100</code> in this key.</p>
+     * <p>If the camera device cannot apply the exact boost requested, it will reduce the
+     * boost to the nearest supported value.
+     * The final boost value used will be available in the output capture result.</p>
+     * <p>For devices that support post RAW sensitivity boost, the YUV/JPEG output images
+     * of such device will have the total sensitivity of
+     * <code>ACAMERA_SENSOR_SENSITIVITY * ACAMERA_CONTROL_POST_RAW_SENSITIVITY_BOOST / 100</code>
+     * The sensitivity of RAW format images will always be <code>ACAMERA_SENSOR_SENSITIVITY</code></p>
+     * <p>This control is only effective if ACAMERA_CONTROL_AE_MODE or ACAMERA_CONTROL_MODE is set to
+     * OFF; otherwise the auto-exposure algorithm will override this value.</p>
+     *
+     * @see ACAMERA_CONTROL_AE_MODE
+     * @see ACAMERA_CONTROL_MODE
+     * @see ACAMERA_CONTROL_POST_RAW_SENSITIVITY_BOOST
+     * @see ACAMERA_SENSOR_SENSITIVITY
+     */
+    ACAMERA_CONTROL_POST_RAW_SENSITIVITY_BOOST =                // int32
+            ACAMERA_CONTROL_START + 40,
+    /**
+     * <p>Allow camera device to enable zero-shutter-lag mode for requests with
+     * ACAMERA_CONTROL_CAPTURE_INTENT == STILL_CAPTURE.</p>
+     *
+     * @see ACAMERA_CONTROL_CAPTURE_INTENT
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul>
+     *
+     * <p>If enableZsl is <code>true</code>, the camera device may enable zero-shutter-lag mode for requests with
+     * STILL_CAPTURE capture intent. The camera device may use images captured in the past to
+     * produce output images for a zero-shutter-lag request. The result metadata including the
+     * ACAMERA_SENSOR_TIMESTAMP reflects the source frames used to produce output images.
+     * Therefore, the contents of the output images and the result metadata may be out of order
+     * compared to previous regular requests. enableZsl does not affect requests with other
+     * capture intents.</p>
+     * <p>For example, when requests are submitted in the following order:
+     *   Request A: enableZsl is <code>true</code>, ACAMERA_CONTROL_CAPTURE_INTENT is PREVIEW
+     *   Request B: enableZsl is <code>true</code>, ACAMERA_CONTROL_CAPTURE_INTENT is STILL_CAPTURE</p>
+     * <p>The output images for request B may have contents captured before the output images for
+     * request A, and the result metadata for request B may be older than the result metadata for
+     * request A.</p>
+     * <p>Note that when enableZsl is <code>true</code>, it is not guaranteed to get output images captured in the
+     * past for requests with STILL_CAPTURE capture intent.</p>
+     * <p>The value of enableZsl in capture templates is always <code>false</code> if present.</p>
+     *
+     * @see ACAMERA_CONTROL_CAPTURE_INTENT
+     * @see ACAMERA_SENSOR_TIMESTAMP
+     */
+    ACAMERA_CONTROL_ENABLE_ZSL =                                // byte (enum)
+            ACAMERA_CONTROL_START + 41,
+    ACAMERA_CONTROL_END,
+
+    /**
+     * <p>Operation mode for edge
+     * enhancement.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul>
+     *
+     * <p>Edge enhancement improves sharpness and details in the captured image. OFF means
+     * no enhancement will be applied by the camera device.</p>
+     * <p>FAST/HIGH_QUALITY both mean camera device determined enhancement
+     * will be applied. HIGH_QUALITY mode indicates that the
+     * camera device will use the highest-quality enhancement algorithms,
+     * even if it slows down capture rate. FAST means the camera device will
+     * not slow down capture rate when applying edge enhancement. FAST may be the same as OFF if
+     * edge enhancement will slow down capture rate. Every output stream will have a similar
+     * amount of enhancement applied.</p>
+     * <p>ZERO_SHUTTER_LAG is meant to be used by applications that maintain a continuous circular
+     * buffer of high-resolution images during preview and reprocess image(s) from that buffer
+     * into a final capture when triggered by the user. In this mode, the camera device applies
+     * edge enhancement to low-resolution streams (below maximum recording resolution) to
+     * maximize preview quality, but does not apply edge enhancement to high-resolution streams,
+     * since those will be reprocessed later if necessary.</p>
+     * <p>For YUV_REPROCESSING, these FAST/HIGH_QUALITY modes both mean that the camera
+     * device will apply FAST/HIGH_QUALITY YUV-domain edge enhancement, respectively.
+     * The camera device may adjust its internal edge enhancement parameters for best
+     * image quality based on the android.reprocess.effectiveExposureFactor, if it is set.</p>
+     */
+    ACAMERA_EDGE_MODE =                                         // byte (enum)
+            ACAMERA_EDGE_START,
+    /**
+     * <p>List of edge enhancement modes for ACAMERA_EDGE_MODE that are supported by this camera
+     * device.</p>
+     *
+     * @see ACAMERA_EDGE_MODE
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>Full-capability camera devices must always support OFF; camera devices that support
+     * YUV_REPROCESSING or PRIVATE_REPROCESSING will list ZERO_SHUTTER_LAG; all devices will
+     * list FAST.</p>
+     */
+    ACAMERA_EDGE_AVAILABLE_EDGE_MODES =                         // byte[n]
+            ACAMERA_EDGE_START + 2,
+    ACAMERA_EDGE_END,
+
+    /**
+     * <p>The desired mode for for the camera device's flash control.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul>
+     *
+     * <p>This control is only effective when flash unit is available
+     * (<code>ACAMERA_FLASH_INFO_AVAILABLE == true</code>).</p>
+     * <p>When this control is used, the ACAMERA_CONTROL_AE_MODE must be set to ON or OFF.
+     * Otherwise, the camera device auto-exposure related flash control (ON_AUTO_FLASH,
+     * ON_ALWAYS_FLASH, or ON_AUTO_FLASH_REDEYE) will override this control.</p>
+     * <p>When set to OFF, the camera device will not fire flash for this capture.</p>
+     * <p>When set to SINGLE, the camera device will fire flash regardless of the camera
+     * device's auto-exposure routine's result. When used in still capture case, this
+     * control should be used along with auto-exposure (AE) precapture metering sequence
+     * (ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER), otherwise, the image may be incorrectly exposed.</p>
+     * <p>When set to TORCH, the flash will be on continuously. This mode can be used
+     * for use cases such as preview, auto-focus assist, still capture, or video recording.</p>
+     * <p>The flash status will be reported by ACAMERA_FLASH_STATE in the capture result metadata.</p>
+     *
+     * @see ACAMERA_CONTROL_AE_MODE
+     * @see ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER
+     * @see ACAMERA_FLASH_INFO_AVAILABLE
+     * @see ACAMERA_FLASH_STATE
+     */
+    ACAMERA_FLASH_MODE =                                        // byte (enum)
+            ACAMERA_FLASH_START + 2,
+    /**
+     * <p>Current state of the flash
+     * unit.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     * </ul>
+     *
+     * <p>When the camera device doesn't have flash unit
+     * (i.e. <code>ACAMERA_FLASH_INFO_AVAILABLE == false</code>), this state will always be UNAVAILABLE.
+     * Other states indicate the current flash status.</p>
+     * <p>In certain conditions, this will be available on LEGACY devices:</p>
+     * <ul>
+     * <li>Flash-less cameras always return UNAVAILABLE.</li>
+     * <li>Using ACAMERA_CONTROL_AE_MODE <code>==</code> ON_ALWAYS_FLASH
+     *    will always return FIRED.</li>
+     * <li>Using ACAMERA_FLASH_MODE <code>==</code> TORCH
+     *    will always return FIRED.</li>
+     * </ul>
+     * <p>In all other conditions the state will not be available on
+     * LEGACY devices (i.e. it will be <code>null</code>).</p>
+     *
+     * @see ACAMERA_CONTROL_AE_MODE
+     * @see ACAMERA_FLASH_INFO_AVAILABLE
+     * @see ACAMERA_FLASH_MODE
+     */
+    ACAMERA_FLASH_STATE =                                       // byte (enum)
+            ACAMERA_FLASH_START + 5,
+    ACAMERA_FLASH_END,
+
+    /**
+     * <p>Whether this camera device has a
+     * flash unit.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>Will be <code>false</code> if no flash is available.</p>
+     * <p>If there is no flash unit, none of the flash controls do
+     * anything.</p>
+     */
+    ACAMERA_FLASH_INFO_AVAILABLE =                              // byte (enum)
+            ACAMERA_FLASH_INFO_START,
+    ACAMERA_FLASH_INFO_END,
+
+    /**
+     * <p>Operational mode for hot pixel correction.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul>
+     *
+     * <p>Hotpixel correction interpolates out, or otherwise removes, pixels
+     * that do not accurately measure the incoming light (i.e. pixels that
+     * are stuck at an arbitrary value or are oversensitive).</p>
+     */
+    ACAMERA_HOT_PIXEL_MODE =                                    // byte (enum)
+            ACAMERA_HOT_PIXEL_START,
+    /**
+     * <p>List of hot pixel correction modes for ACAMERA_HOT_PIXEL_MODE that are supported by this
+     * camera device.</p>
+     *
+     * @see ACAMERA_HOT_PIXEL_MODE
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>FULL mode camera devices will always support FAST.</p>
+     */
+    ACAMERA_HOT_PIXEL_AVAILABLE_HOT_PIXEL_MODES =               // byte[n]
+            ACAMERA_HOT_PIXEL_START + 1,
+    ACAMERA_HOT_PIXEL_END,
+
+    /**
+     * <p>GPS coordinates to include in output JPEG
+     * EXIF.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul>
+     *
+     * <p>None</p>
+     */
+    ACAMERA_JPEG_GPS_COORDINATES =                              // double[3]
+            ACAMERA_JPEG_START,
+    /**
+     * <p>32 characters describing GPS algorithm to
+     * include in EXIF.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul>
+     *
+     * <p>None</p>
+     */
+    ACAMERA_JPEG_GPS_PROCESSING_METHOD =                        // byte
+            ACAMERA_JPEG_START + 1,
+    /**
+     * <p>Time GPS fix was made to include in
+     * EXIF.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul>
+     *
+     * <p>None</p>
+     */
+    ACAMERA_JPEG_GPS_TIMESTAMP =                                // int64
+            ACAMERA_JPEG_START + 2,
+    /**
+     * <p>The orientation for a JPEG image.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul>
+     *
+     * <p>The clockwise rotation angle in degrees, relative to the orientation
+     * to the camera, that the JPEG picture needs to be rotated by, to be viewed
+     * upright.</p>
+     * <p>Camera devices may either encode this value into the JPEG EXIF header, or
+     * rotate the image data to match this orientation. When the image data is rotated,
+     * the thumbnail data will also be rotated.</p>
+     * <p>Note that this orientation is relative to the orientation of the camera sensor, given
+     * by ACAMERA_SENSOR_ORIENTATION.</p>
+     * <p>To translate from the device orientation given by the Android sensor APIs, the following
+     * sample code may be used:</p>
+     * <pre><code>private int getJpegOrientation(CameraCharacteristics c, int deviceOrientation) {
+     *     if (deviceOrientation == android.view.OrientationEventListener.ORIENTATION_UNKNOWN) return 0;
+     *     int sensorOrientation = c.get(CameraCharacteristics.SENSOR_ORIENTATION);
+     *
+     *     // Round device orientation to a multiple of 90
+     *     deviceOrientation = (deviceOrientation + 45) / 90 * 90;
+     *
+     *     // Reverse device orientation for front-facing cameras
+     *     boolean facingFront = c.get(CameraCharacteristics.LENS_FACING) == CameraCharacteristics.LENS_FACING_FRONT;
+     *     if (facingFront) deviceOrientation = -deviceOrientation;
+     *
+     *     // Calculate desired JPEG orientation relative to camera orientation to make
+     *     // the image upright relative to the device orientation
+     *     int jpegOrientation = (sensorOrientation + deviceOrientation + 360) % 360;
+     *
+     *     return jpegOrientation;
+     * }
+     * </code></pre>
+     *
+     * @see ACAMERA_SENSOR_ORIENTATION
+     */
+    ACAMERA_JPEG_ORIENTATION =                                  // int32
+            ACAMERA_JPEG_START + 3,
+    /**
+     * <p>Compression quality of the final JPEG
+     * image.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul>
+     *
+     * <p>85-95 is typical usage range.</p>
+     */
+    ACAMERA_JPEG_QUALITY =                                      // byte
+            ACAMERA_JPEG_START + 4,
+    /**
+     * <p>Compression quality of JPEG
+     * thumbnail.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul>
+     *
+     * <p>None</p>
+     */
+    ACAMERA_JPEG_THUMBNAIL_QUALITY =                            // byte
+            ACAMERA_JPEG_START + 5,
+    /**
+     * <p>Resolution of embedded JPEG thumbnail.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul>
+     *
+     * <p>When set to (0, 0) value, the JPEG EXIF will not contain thumbnail,
+     * but the captured JPEG will still be a valid image.</p>
+     * <p>For best results, when issuing a request for a JPEG image, the thumbnail size selected
+     * should have the same aspect ratio as the main JPEG output.</p>
+     * <p>If the thumbnail image aspect ratio differs from the JPEG primary image aspect
+     * ratio, the camera device creates the thumbnail by cropping it from the primary image.
+     * For example, if the primary image has 4:3 aspect ratio, the thumbnail image has
+     * 16:9 aspect ratio, the primary image will be cropped vertically (letterbox) to
+     * generate the thumbnail image. The thumbnail image will always have a smaller Field
+     * Of View (FOV) than the primary image when aspect ratios differ.</p>
+     * <p>When an ACAMERA_JPEG_ORIENTATION of non-zero degree is requested,
+     * the camera device will handle thumbnail rotation in one of the following ways:</p>
+     * <ul>
+     * <li>Set the
+     *   <a href="https://developer.android.com/reference/android/media/ExifInterface.html#TAG_ORIENTATION">EXIF orientation flag</a>
+     *   and keep jpeg and thumbnail image data unrotated.</li>
+     * <li>Rotate the jpeg and thumbnail image data and not set
+     *   <a href="https://developer.android.com/reference/android/media/ExifInterface.html#TAG_ORIENTATION">EXIF orientation flag</a>.
+     *   In this case, LIMITED or FULL hardware level devices will report rotated thumnail size
+     *   in capture result, so the width and height will be interchanged if 90 or 270 degree
+     *   orientation is requested. LEGACY device will always report unrotated thumbnail size.</li>
+     * </ul>
+     *
+     * @see ACAMERA_JPEG_ORIENTATION
+     */
+    ACAMERA_JPEG_THUMBNAIL_SIZE =                               // int32[2]
+            ACAMERA_JPEG_START + 6,
+    /**
+     * <p>List of JPEG thumbnail sizes for ACAMERA_JPEG_THUMBNAIL_SIZE supported by this
+     * camera device.</p>
+     *
+     * @see ACAMERA_JPEG_THUMBNAIL_SIZE
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>This list will include at least one non-zero resolution, plus <code>(0,0)</code> for indicating no
+     * thumbnail should be generated.</p>
+     * <p>Below condiditions will be satisfied for this size list:</p>
+     * <ul>
+     * <li>The sizes will be sorted by increasing pixel area (width x height).
+     * If several resolutions have the same area, they will be sorted by increasing width.</li>
+     * <li>The aspect ratio of the largest thumbnail size will be same as the
+     * aspect ratio of largest JPEG output size in ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS.
+     * The largest size is defined as the size that has the largest pixel area
+     * in a given size list.</li>
+     * <li>Each output JPEG size in ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS will have at least
+     * one corresponding size that has the same aspect ratio in availableThumbnailSizes,
+     * and vice versa.</li>
+     * <li>All non-<code>(0, 0)</code> sizes will have non-zero widths and heights.</li>
+     * </ul>
+     *
+     * @see ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS
+     */
+    ACAMERA_JPEG_AVAILABLE_THUMBNAIL_SIZES =                    // int32[2*n]
+            ACAMERA_JPEG_START + 7,
+    ACAMERA_JPEG_END,
+
+    /**
+     * <p>The desired lens aperture size, as a ratio of lens focal length to the
+     * effective aperture diameter.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul>
+     *
+     * <p>Setting this value is only supported on the camera devices that have a variable
+     * aperture lens.</p>
+     * <p>When this is supported and ACAMERA_CONTROL_AE_MODE is OFF,
+     * this can be set along with ACAMERA_SENSOR_EXPOSURE_TIME,
+     * ACAMERA_SENSOR_SENSITIVITY, and ACAMERA_SENSOR_FRAME_DURATION
+     * to achieve manual exposure control.</p>
+     * <p>The requested aperture value may take several frames to reach the
+     * requested value; the camera device will report the current (intermediate)
+     * aperture size in capture result metadata while the aperture is changing.
+     * While the aperture is still changing, ACAMERA_LENS_STATE will be set to MOVING.</p>
+     * <p>When this is supported and ACAMERA_CONTROL_AE_MODE is one of
+     * the ON modes, this will be overridden by the camera device
+     * auto-exposure algorithm, the overridden values are then provided
+     * back to the user in the corresponding result.</p>
+     *
+     * @see ACAMERA_CONTROL_AE_MODE
+     * @see ACAMERA_LENS_STATE
+     * @see ACAMERA_SENSOR_EXPOSURE_TIME
+     * @see ACAMERA_SENSOR_FRAME_DURATION
+     * @see ACAMERA_SENSOR_SENSITIVITY
+     */
+    ACAMERA_LENS_APERTURE =                                     // float
+            ACAMERA_LENS_START,
+    /**
+     * <p>The desired setting for the lens neutral density filter(s).</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul>
+     *
+     * <p>This control will not be supported on most camera devices.</p>
+     * <p>Lens filters are typically used to lower the amount of light the
+     * sensor is exposed to (measured in steps of EV). As used here, an EV
+     * step is the standard logarithmic representation, which are
+     * non-negative, and inversely proportional to the amount of light
+     * hitting the sensor.  For example, setting this to 0 would result
+     * in no reduction of the incoming light, and setting this to 2 would
+     * mean that the filter is set to reduce incoming light by two stops
+     * (allowing 1/4 of the prior amount of light to the sensor).</p>
+     * <p>It may take several frames before the lens filter density changes
+     * to the requested value. While the filter density is still changing,
+     * ACAMERA_LENS_STATE will be set to MOVING.</p>
+     *
+     * @see ACAMERA_LENS_STATE
+     */
+    ACAMERA_LENS_FILTER_DENSITY =                               // float
+            ACAMERA_LENS_START + 1,
+    /**
+     * <p>The desired lens focal length; used for optical zoom.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul>
+     *
+     * <p>This setting controls the physical focal length of the camera
+     * device's lens. Changing the focal length changes the field of
+     * view of the camera device, and is usually used for optical zoom.</p>
+     * <p>Like ACAMERA_LENS_FOCUS_DISTANCE and ACAMERA_LENS_APERTURE, this
+     * setting won't be applied instantaneously, and it may take several
+     * frames before the lens can change to the requested focal length.
+     * While the focal length is still changing, ACAMERA_LENS_STATE will
+     * be set to MOVING.</p>
+     * <p>Optical zoom will not be supported on most devices.</p>
+     *
+     * @see ACAMERA_LENS_APERTURE
+     * @see ACAMERA_LENS_FOCUS_DISTANCE
+     * @see ACAMERA_LENS_STATE
+     */
+    ACAMERA_LENS_FOCAL_LENGTH =                                 // float
+            ACAMERA_LENS_START + 2,
+    /**
+     * <p>Desired distance to plane of sharpest focus,
+     * measured from frontmost surface of the lens.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul>
+     *
+     * <p>Should be zero for fixed-focus cameras</p>
+     */
+    ACAMERA_LENS_FOCUS_DISTANCE =                               // float
+            ACAMERA_LENS_START + 3,
+    /**
+     * <p>Sets whether the camera device uses optical image stabilization (OIS)
+     * when capturing images.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul>
+     *
+     * <p>OIS is used to compensate for motion blur due to small
+     * movements of the camera during capture. Unlike digital image
+     * stabilization (ACAMERA_CONTROL_VIDEO_STABILIZATION_MODE), OIS
+     * makes use of mechanical elements to stabilize the camera
+     * sensor, and thus allows for longer exposure times before
+     * camera shake becomes apparent.</p>
+     * <p>Switching between different optical stabilization modes may take several
+     * frames to initialize, the camera device will report the current mode in
+     * capture result metadata. For example, When "ON" mode is requested, the
+     * optical stabilization modes in the first several capture results may still
+     * be "OFF", and it will become "ON" when the initialization is done.</p>
+     * <p>If a camera device supports both OIS and digital image stabilization
+     * (ACAMERA_CONTROL_VIDEO_STABILIZATION_MODE), turning both modes on may produce undesirable
+     * interaction, so it is recommended not to enable both at the same time.</p>
+     * <p>Not all devices will support OIS; see
+     * ACAMERA_LENS_INFO_AVAILABLE_OPTICAL_STABILIZATION for
+     * available controls.</p>
+     *
+     * @see ACAMERA_CONTROL_VIDEO_STABILIZATION_MODE
+     * @see ACAMERA_LENS_INFO_AVAILABLE_OPTICAL_STABILIZATION
+     */
+    ACAMERA_LENS_OPTICAL_STABILIZATION_MODE =                   // byte (enum)
+            ACAMERA_LENS_START + 4,
+    /**
+     * <p>Direction the camera faces relative to
+     * device screen.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>None</p>
+     */
+    ACAMERA_LENS_FACING =                                       // byte (enum)
+            ACAMERA_LENS_START + 5,
+    /**
+     * <p>The orientation of the camera relative to the sensor
+     * coordinate system.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     * </ul>
+     *
+     * <p>The four coefficients that describe the quaternion
+     * rotation from the Android sensor coordinate system to a
+     * camera-aligned coordinate system where the X-axis is
+     * aligned with the long side of the image sensor, the Y-axis
+     * is aligned with the short side of the image sensor, and
+     * the Z-axis is aligned with the optical axis of the sensor.</p>
+     * <p>To convert from the quaternion coefficients <code>(x,y,z,w)</code>
+     * to the axis of rotation <code>(a_x, a_y, a_z)</code> and rotation
+     * amount <code>theta</code>, the following formulas can be used:</p>
+     * <pre><code> theta = 2 * acos(w)
+     * a_x = x / sin(theta/2)
+     * a_y = y / sin(theta/2)
+     * a_z = z / sin(theta/2)
+     * </code></pre>
+     * <p>To create a 3x3 rotation matrix that applies the rotation
+     * defined by this quaternion, the following matrix can be
+     * used:</p>
+     * <pre><code>R = [ 1 - 2y^2 - 2z^2,       2xy - 2zw,       2xz + 2yw,
+     *            2xy + 2zw, 1 - 2x^2 - 2z^2,       2yz - 2xw,
+     *            2xz - 2yw,       2yz + 2xw, 1 - 2x^2 - 2y^2 ]
+     * </code></pre>
+     * <p>This matrix can then be used to apply the rotation to a
+     *  column vector point with</p>
+     * <p><code>p' = Rp</code></p>
+     * <p>where <code>p</code> is in the device sensor coordinate system, and
+     *  <code>p'</code> is in the camera-oriented coordinate system.</p>
+     */
+    ACAMERA_LENS_POSE_ROTATION =                                // float[4]
+            ACAMERA_LENS_START + 6,
+    /**
+     * <p>Position of the camera optical center.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     * </ul>
+     *
+     * <p>The position of the camera device's lens optical center,
+     * as a three-dimensional vector <code>(x,y,z)</code>, relative to the
+     * optical center of the largest camera device facing in the
+     * same direction as this camera, in the
+     * <a href="https://developer.android.com/reference/android/hardware/SensorEvent.html">Android sensor coordinate axes</a>.
+     * Note that only the axis definitions are shared with
+     * the sensor coordinate system, but not the origin.</p>
+     * <p>If this device is the largest or only camera device with a
+     * given facing, then this position will be <code>(0, 0, 0)</code>; a
+     * camera device with a lens optical center located 3 cm from
+     * the main sensor along the +X axis (to the right from the
+     * user's perspective) will report <code>(0.03, 0, 0)</code>.</p>
+     * <p>To transform a pixel coordinates between two cameras
+     * facing the same direction, first the source camera
+     * ACAMERA_LENS_RADIAL_DISTORTION must be corrected for.  Then
+     * the source camera ACAMERA_LENS_INTRINSIC_CALIBRATION needs
+     * to be applied, followed by the ACAMERA_LENS_POSE_ROTATION
+     * of the source camera, the translation of the source camera
+     * relative to the destination camera, the
+     * ACAMERA_LENS_POSE_ROTATION of the destination camera, and
+     * finally the inverse of ACAMERA_LENS_INTRINSIC_CALIBRATION
+     * of the destination camera. This obtains a
+     * radial-distortion-free coordinate in the destination
+     * camera pixel coordinates.</p>
+     * <p>To compare this against a real image from the destination
+     * camera, the destination camera image then needs to be
+     * corrected for radial distortion before comparison or
+     * sampling.</p>
+     *
+     * @see ACAMERA_LENS_INTRINSIC_CALIBRATION
+     * @see ACAMERA_LENS_POSE_ROTATION
+     * @see ACAMERA_LENS_RADIAL_DISTORTION
+     */
+    ACAMERA_LENS_POSE_TRANSLATION =                             // float[3]
+            ACAMERA_LENS_START + 7,
+    /**
+     * <p>The range of scene distances that are in
+     * sharp focus (depth of field).</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     * </ul>
+     *
+     * <p>If variable focus not supported, can still report
+     * fixed depth of field range</p>
+     */
+    ACAMERA_LENS_FOCUS_RANGE =                                  // float[2]
+            ACAMERA_LENS_START + 8,
+    /**
+     * <p>Current lens status.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     * </ul>
+     *
+     * <p>For lens parameters ACAMERA_LENS_FOCAL_LENGTH, ACAMERA_LENS_FOCUS_DISTANCE,
+     * ACAMERA_LENS_FILTER_DENSITY and ACAMERA_LENS_APERTURE, when changes are requested,
+     * they may take several frames to reach the requested values. This state indicates
+     * the current status of the lens parameters.</p>
+     * <p>When the state is STATIONARY, the lens parameters are not changing. This could be
+     * either because the parameters are all fixed, or because the lens has had enough
+     * time to reach the most recently-requested values.
+     * If all these lens parameters are not changable for a camera device, as listed below:</p>
+     * <ul>
+     * <li>Fixed focus (<code>ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE == 0</code>), which means
+     * ACAMERA_LENS_FOCUS_DISTANCE parameter will always be 0.</li>
+     * <li>Fixed focal length (ACAMERA_LENS_INFO_AVAILABLE_FOCAL_LENGTHS contains single value),
+     * which means the optical zoom is not supported.</li>
+     * <li>No ND filter (ACAMERA_LENS_INFO_AVAILABLE_FILTER_DENSITIES contains only 0).</li>
+     * <li>Fixed aperture (ACAMERA_LENS_INFO_AVAILABLE_APERTURES contains single value).</li>
+     * </ul>
+     * <p>Then this state will always be STATIONARY.</p>
+     * <p>When the state is MOVING, it indicates that at least one of the lens parameters
+     * is changing.</p>
+     *
+     * @see ACAMERA_LENS_APERTURE
+     * @see ACAMERA_LENS_FILTER_DENSITY
+     * @see ACAMERA_LENS_FOCAL_LENGTH
+     * @see ACAMERA_LENS_FOCUS_DISTANCE
+     * @see ACAMERA_LENS_INFO_AVAILABLE_APERTURES
+     * @see ACAMERA_LENS_INFO_AVAILABLE_FILTER_DENSITIES
+     * @see ACAMERA_LENS_INFO_AVAILABLE_FOCAL_LENGTHS
+     * @see ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE
+     */
+    ACAMERA_LENS_STATE =                                        // byte (enum)
+            ACAMERA_LENS_START + 9,
+    /**
+     * <p>The parameters for this camera device's intrinsic
+     * calibration.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     * </ul>
+     *
+     * <p>The five calibration parameters that describe the
+     * transform from camera-centric 3D coordinates to sensor
+     * pixel coordinates:</p>
+     * <pre><code>[f_x, f_y, c_x, c_y, s]
+     * </code></pre>
+     * <p>Where <code>f_x</code> and <code>f_y</code> are the horizontal and vertical
+     * focal lengths, <code>[c_x, c_y]</code> is the position of the optical
+     * axis, and <code>s</code> is a skew parameter for the sensor plane not
+     * being aligned with the lens plane.</p>
+     * <p>These are typically used within a transformation matrix K:</p>
+     * <pre><code>K = [ f_x,   s, c_x,
+     *        0, f_y, c_y,
+     *        0    0,   1 ]
+     * </code></pre>
+     * <p>which can then be combined with the camera pose rotation
+     * <code>R</code> and translation <code>t</code> (ACAMERA_LENS_POSE_ROTATION and
+     * ACAMERA_LENS_POSE_TRANSLATION, respective) to calculate the
+     * complete transform from world coordinates to pixel
+     * coordinates:</p>
+     * <pre><code>P = [ K 0   * [ R t
+     *      0 1 ]     0 1 ]
+     * </code></pre>
+     * <p>and with <code>p_w</code> being a point in the world coordinate system
+     * and <code>p_s</code> being a point in the camera active pixel array
+     * coordinate system, and with the mapping including the
+     * homogeneous division by z:</p>
+     * <pre><code> p_h = (x_h, y_h, z_h) = P p_w
+     * p_s = p_h / z_h
+     * </code></pre>
+     * <p>so <code>[x_s, y_s]</code> is the pixel coordinates of the world
+     * point, <code>z_s = 1</code>, and <code>w_s</code> is a measurement of disparity
+     * (depth) in pixel coordinates.</p>
+     * <p>Note that the coordinate system for this transform is the
+     * ACAMERA_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE system,
+     * where <code>(0,0)</code> is the top-left of the
+     * preCorrectionActiveArraySize rectangle. Once the pose and
+     * intrinsic calibration transforms have been applied to a
+     * world point, then the ACAMERA_LENS_RADIAL_DISTORTION
+     * transform needs to be applied, and the result adjusted to
+     * be in the ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE coordinate
+     * system (where <code>(0, 0)</code> is the top-left of the
+     * activeArraySize rectangle), to determine the final pixel
+     * coordinate of the world point for processed (non-RAW)
+     * output buffers.</p>
+     *
+     * @see ACAMERA_LENS_POSE_ROTATION
+     * @see ACAMERA_LENS_POSE_TRANSLATION
+     * @see ACAMERA_LENS_RADIAL_DISTORTION
+     * @see ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
+     * @see ACAMERA_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE
+     */
+    ACAMERA_LENS_INTRINSIC_CALIBRATION =                        // float[5]
+            ACAMERA_LENS_START + 10,
+    /**
+     * <p>The correction coefficients to correct for this camera device's
+     * radial and tangential lens distortion.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     * </ul>
+     *
+     * <p>Four radial distortion coefficients <code>[kappa_0, kappa_1, kappa_2,
+     * kappa_3]</code> and two tangential distortion coefficients
+     * <code>[kappa_4, kappa_5]</code> that can be used to correct the
+     * lens's geometric distortion with the mapping equations:</p>
+     * <pre><code> x_c = x_i * ( kappa_0 + kappa_1 * r^2 + kappa_2 * r^4 + kappa_3 * r^6 ) +
+     *        kappa_4 * (2 * x_i * y_i) + kappa_5 * ( r^2 + 2 * x_i^2 )
+     *  y_c = y_i * ( kappa_0 + kappa_1 * r^2 + kappa_2 * r^4 + kappa_3 * r^6 ) +
+     *        kappa_5 * (2 * x_i * y_i) + kappa_4 * ( r^2 + 2 * y_i^2 )
+     * </code></pre>
+     * <p>Here, <code>[x_c, y_c]</code> are the coordinates to sample in the
+     * input image that correspond to the pixel values in the
+     * corrected image at the coordinate <code>[x_i, y_i]</code>:</p>
+     * <pre><code> correctedImage(x_i, y_i) = sample_at(x_c, y_c, inputImage)
+     * </code></pre>
+     * <p>The pixel coordinates are defined in a normalized
+     * coordinate system related to the
+     * ACAMERA_LENS_INTRINSIC_CALIBRATION calibration fields.
+     * Both <code>[x_i, y_i]</code> and <code>[x_c, y_c]</code> have <code>(0,0)</code> at the
+     * lens optical center <code>[c_x, c_y]</code>. The maximum magnitudes
+     * of both x and y coordinates are normalized to be 1 at the
+     * edge further from the optical center, so the range
+     * for both dimensions is <code>-1 &lt;= x &lt;= 1</code>.</p>
+     * <p>Finally, <code>r</code> represents the radial distance from the
+     * optical center, <code>r^2 = x_i^2 + y_i^2</code>, and its magnitude
+     * is therefore no larger than <code>|r| &lt;= sqrt(2)</code>.</p>
+     * <p>The distortion model used is the Brown-Conrady model.</p>
+     *
+     * @see ACAMERA_LENS_INTRINSIC_CALIBRATION
+     */
+    ACAMERA_LENS_RADIAL_DISTORTION =                            // float[6]
+            ACAMERA_LENS_START + 11,
+    ACAMERA_LENS_END,
+
+    /**
+     * <p>List of aperture size values for ACAMERA_LENS_APERTURE that are
+     * supported by this camera device.</p>
+     *
+     * @see ACAMERA_LENS_APERTURE
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>If the camera device doesn't support a variable lens aperture,
+     * this list will contain only one value, which is the fixed aperture size.</p>
+     * <p>If the camera device supports a variable aperture, the aperture values
+     * in this list will be sorted in ascending order.</p>
+     */
+    ACAMERA_LENS_INFO_AVAILABLE_APERTURES =                     // float[n]
+            ACAMERA_LENS_INFO_START,
+    /**
+     * <p>List of neutral density filter values for
+     * ACAMERA_LENS_FILTER_DENSITY that are supported by this camera device.</p>
+     *
+     * @see ACAMERA_LENS_FILTER_DENSITY
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>If a neutral density filter is not supported by this camera device,
+     * this list will contain only 0. Otherwise, this list will include every
+     * filter density supported by the camera device, in ascending order.</p>
+     */
+    ACAMERA_LENS_INFO_AVAILABLE_FILTER_DENSITIES =              // float[n]
+            ACAMERA_LENS_INFO_START + 1,
+    /**
+     * <p>List of focal lengths for ACAMERA_LENS_FOCAL_LENGTH that are supported by this camera
+     * device.</p>
+     *
+     * @see ACAMERA_LENS_FOCAL_LENGTH
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>If optical zoom is not supported, this list will only contain
+     * a single value corresponding to the fixed focal length of the
+     * device. Otherwise, this list will include every focal length supported
+     * by the camera device, in ascending order.</p>
+     */
+    ACAMERA_LENS_INFO_AVAILABLE_FOCAL_LENGTHS =                 // float[n]
+            ACAMERA_LENS_INFO_START + 2,
+    /**
+     * <p>List of optical image stabilization (OIS) modes for
+     * ACAMERA_LENS_OPTICAL_STABILIZATION_MODE that are supported by this camera device.</p>
+     *
+     * @see ACAMERA_LENS_OPTICAL_STABILIZATION_MODE
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>If OIS is not supported by a given camera device, this list will
+     * contain only OFF.</p>
+     */
+    ACAMERA_LENS_INFO_AVAILABLE_OPTICAL_STABILIZATION =         // byte[n]
+            ACAMERA_LENS_INFO_START + 3,
+    /**
+     * <p>Hyperfocal distance for this lens.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>If the lens is not fixed focus, the camera device will report this
+     * field when ACAMERA_LENS_INFO_FOCUS_DISTANCE_CALIBRATION is APPROXIMATE or CALIBRATED.</p>
+     *
+     * @see ACAMERA_LENS_INFO_FOCUS_DISTANCE_CALIBRATION
+     */
+    ACAMERA_LENS_INFO_HYPERFOCAL_DISTANCE =                     // float
+            ACAMERA_LENS_INFO_START + 4,
+    /**
+     * <p>Shortest distance from frontmost surface
+     * of the lens that can be brought into sharp focus.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>If the lens is fixed-focus, this will be
+     * 0.</p>
+     */
+    ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE =                  // float
+            ACAMERA_LENS_INFO_START + 5,
+    /**
+     * <p>Dimensions of lens shading map.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>The map should be on the order of 30-40 rows and columns, and
+     * must be smaller than 64x64.</p>
+     */
+    ACAMERA_LENS_INFO_SHADING_MAP_SIZE =                        // int32[2]
+            ACAMERA_LENS_INFO_START + 6,
+    /**
+     * <p>The lens focus distance calibration quality.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>The lens focus distance calibration quality determines the reliability of
+     * focus related metadata entries, i.e. ACAMERA_LENS_FOCUS_DISTANCE,
+     * ACAMERA_LENS_FOCUS_RANGE, ACAMERA_LENS_INFO_HYPERFOCAL_DISTANCE, and
+     * ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE.</p>
+     * <p>APPROXIMATE and CALIBRATED devices report the focus metadata in
+     * units of diopters (1/meter), so <code>0.0f</code> represents focusing at infinity,
+     * and increasing positive numbers represent focusing closer and closer
+     * to the camera device. The focus distance control also uses diopters
+     * on these devices.</p>
+     * <p>UNCALIBRATED devices do not use units that are directly comparable
+     * to any real physical measurement, but <code>0.0f</code> still represents farthest
+     * focus, and ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE represents the
+     * nearest focus the device can achieve.</p>
+     *
+     * @see ACAMERA_LENS_FOCUS_DISTANCE
+     * @see ACAMERA_LENS_FOCUS_RANGE
+     * @see ACAMERA_LENS_INFO_HYPERFOCAL_DISTANCE
+     * @see ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE
+     */
+    ACAMERA_LENS_INFO_FOCUS_DISTANCE_CALIBRATION =              // byte (enum)
+            ACAMERA_LENS_INFO_START + 7,
+    ACAMERA_LENS_INFO_END,
+
+    /**
+     * <p>Mode of operation for the noise reduction algorithm.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul>
+     *
+     * <p>The noise reduction algorithm attempts to improve image quality by removing
+     * excessive noise added by the capture process, especially in dark conditions.</p>
+     * <p>OFF means no noise reduction will be applied by the camera device, for both raw and
+     * YUV domain.</p>
+     * <p>MINIMAL means that only sensor raw domain basic noise reduction is enabled ,to remove
+     * demosaicing or other processing artifacts. For YUV_REPROCESSING, MINIMAL is same as OFF.
+     * This mode is optional, may not be support by all devices. The application should check
+     * ACAMERA_NOISE_REDUCTION_AVAILABLE_NOISE_REDUCTION_MODES before using it.</p>
+     * <p>FAST/HIGH_QUALITY both mean camera device determined noise filtering
+     * will be applied. HIGH_QUALITY mode indicates that the camera device
+     * will use the highest-quality noise filtering algorithms,
+     * even if it slows down capture rate. FAST means the camera device will not
+     * slow down capture rate when applying noise filtering. FAST may be the same as MINIMAL if
+     * MINIMAL is listed, or the same as OFF if any noise filtering will slow down capture rate.
+     * Every output stream will have a similar amount of enhancement applied.</p>
+     * <p>ZERO_SHUTTER_LAG is meant to be used by applications that maintain a continuous circular
+     * buffer of high-resolution images during preview and reprocess image(s) from that buffer
+     * into a final capture when triggered by the user. In this mode, the camera device applies
+     * noise reduction to low-resolution streams (below maximum recording resolution) to maximize
+     * preview quality, but does not apply noise reduction to high-resolution streams, since
+     * those will be reprocessed later if necessary.</p>
+     * <p>For YUV_REPROCESSING, these FAST/HIGH_QUALITY modes both mean that the camera device
+     * will apply FAST/HIGH_QUALITY YUV domain noise reduction, respectively. The camera device
+     * may adjust the noise reduction parameters for best image quality based on the
+     * android.reprocess.effectiveExposureFactor if it is set.</p>
+     *
+     * @see ACAMERA_NOISE_REDUCTION_AVAILABLE_NOISE_REDUCTION_MODES
+     */
+    ACAMERA_NOISE_REDUCTION_MODE =                              // byte (enum)
+            ACAMERA_NOISE_REDUCTION_START,
+    /**
+     * <p>List of noise reduction modes for ACAMERA_NOISE_REDUCTION_MODE that are supported
+     * by this camera device.</p>
+     *
+     * @see ACAMERA_NOISE_REDUCTION_MODE
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>Full-capability camera devices will always support OFF and FAST.</p>
+     * <p>Camera devices that support YUV_REPROCESSING or PRIVATE_REPROCESSING will support
+     * ZERO_SHUTTER_LAG.</p>
+     * <p>Legacy-capability camera devices will only support FAST mode.</p>
+     */
+    ACAMERA_NOISE_REDUCTION_AVAILABLE_NOISE_REDUCTION_MODES =   // byte[n]
+            ACAMERA_NOISE_REDUCTION_START + 2,
+    ACAMERA_NOISE_REDUCTION_END,
+
+    /**
+     * <p>The maximum numbers of different types of output streams
+     * that can be configured and used simultaneously by a camera device.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>This is a 3 element tuple that contains the max number of output simultaneous
+     * streams for raw sensor, processed (but not stalling), and processed (and stalling)
+     * formats respectively. For example, assuming that JPEG is typically a processed and
+     * stalling stream, if max raw sensor format output stream number is 1, max YUV streams
+     * number is 3, and max JPEG stream number is 2, then this tuple should be <code>(1, 3, 2)</code>.</p>
+     * <p>This lists the upper bound of the number of output streams supported by
+     * the camera device. Using more streams simultaneously may require more hardware and
+     * CPU resources that will consume more power. The image format for an output stream can
+     * be any supported format provided by ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS.
+     * The formats defined in ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS can be catergorized
+     * into the 3 stream types as below:</p>
+     * <ul>
+     * <li>Processed (but stalling): any non-RAW format with a stallDurations &gt; 0.
+     *   Typically {@link AIMAGE_FORMAT_JPEG} format.</li>
+     * <li>Raw formats: {@link AIMAGE_FORMAT_RAW16}, {@link AIMAGE_FORMAT_RAW10}, or
+     *   {@link AIMAGE_FORMAT_RAW12}.</li>
+     * <li>Processed (but not-stalling): any non-RAW format without a stall duration.
+     *   Typically {@link AIMAGE_FORMAT_YUV_420_888}.</li>
+     * </ul>
+     *
+     * @see ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS
+     */
+    ACAMERA_REQUEST_MAX_NUM_OUTPUT_STREAMS =                    // int32[3]
+            ACAMERA_REQUEST_START + 6,
+    /**
+     * <p>Specifies the number of pipeline stages the frame went
+     * through from when it was exposed to when the final completed result
+     * was available to the framework.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     * </ul>
+     *
+     * <p>Depending on what settings are used in the request, and
+     * what streams are configured, the data may undergo less processing,
+     * and some pipeline stages skipped.</p>
+     * <p>See ACAMERA_REQUEST_PIPELINE_MAX_DEPTH for more details.</p>
+     *
+     * @see ACAMERA_REQUEST_PIPELINE_MAX_DEPTH
+     */
+    ACAMERA_REQUEST_PIPELINE_DEPTH =                            // byte
+            ACAMERA_REQUEST_START + 9,
+    /**
+     * <p>Specifies the number of maximum pipeline stages a frame
+     * has to go through from when it's exposed to when it's available
+     * to the framework.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>A typical minimum value for this is 2 (one stage to expose,
+     * one stage to readout) from the sensor. The ISP then usually adds
+     * its own stages to do custom HW processing. Further stages may be
+     * added by SW processing.</p>
+     * <p>Depending on what settings are used (e.g. YUV, JPEG) and what
+     * processing is enabled (e.g. face detection), the actual pipeline
+     * depth (specified by ACAMERA_REQUEST_PIPELINE_DEPTH) may be less than
+     * the max pipeline depth.</p>
+     * <p>A pipeline depth of X stages is equivalent to a pipeline latency of
+     * X frame intervals.</p>
+     * <p>This value will normally be 8 or less, however, for high speed capture session,
+     * the max pipeline depth will be up to 8 x size of high speed capture request list.</p>
+     *
+     * @see ACAMERA_REQUEST_PIPELINE_DEPTH
+     */
+    ACAMERA_REQUEST_PIPELINE_MAX_DEPTH =                        // byte
+            ACAMERA_REQUEST_START + 10,
+    /**
+     * <p>Defines how many sub-components
+     * a result will be composed of.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>In order to combat the pipeline latency, partial results
+     * may be delivered to the application layer from the camera device as
+     * soon as they are available.</p>
+     * <p>Optional; defaults to 1. A value of 1 means that partial
+     * results are not supported, and only the final TotalCaptureResult will
+     * be produced by the camera device.</p>
+     * <p>A typical use case for this might be: after requesting an
+     * auto-focus (AF) lock the new AF state might be available 50%
+     * of the way through the pipeline.  The camera device could
+     * then immediately dispatch this state via a partial result to
+     * the application, and the rest of the metadata via later
+     * partial results.</p>
+     */
+    ACAMERA_REQUEST_PARTIAL_RESULT_COUNT =                      // int32
+            ACAMERA_REQUEST_START + 11,
+    /**
+     * <p>List of capabilities that this camera device
+     * advertises as fully supporting.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>A capability is a contract that the camera device makes in order
+     * to be able to satisfy one or more use cases.</p>
+     * <p>Listing a capability guarantees that the whole set of features
+     * required to support a common use will all be available.</p>
+     * <p>Using a subset of the functionality provided by an unsupported
+     * capability may be possible on a specific camera device implementation;
+     * to do this query each of ACAMERA_REQUEST_AVAILABLE_REQUEST_KEYS,
+     * ACAMERA_REQUEST_AVAILABLE_RESULT_KEYS,
+     * ACAMERA_REQUEST_AVAILABLE_CHARACTERISTICS_KEYS.</p>
+     * <p>The following capabilities are guaranteed to be available on
+     * ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL <code>==</code> FULL devices:</p>
+     * <ul>
+     * <li>MANUAL_SENSOR</li>
+     * <li>MANUAL_POST_PROCESSING</li>
+     * </ul>
+     * <p>Other capabilities may be available on either FULL or LIMITED
+     * devices, but the application should query this key to be sure.</p>
+     *
+     * @see ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL
+     * @see ACAMERA_REQUEST_AVAILABLE_CHARACTERISTICS_KEYS
+     * @see ACAMERA_REQUEST_AVAILABLE_REQUEST_KEYS
+     * @see ACAMERA_REQUEST_AVAILABLE_RESULT_KEYS
+     */
+    ACAMERA_REQUEST_AVAILABLE_CAPABILITIES =                    // byte[n] (enum)
+            ACAMERA_REQUEST_START + 12,
+    /**
+     * <p>A list of all keys that the camera device has available
+     * to use with {@link ACaptureRequest}.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>Attempting to set a key into a CaptureRequest that is not
+     * listed here will result in an invalid request and will be rejected
+     * by the camera device.</p>
+     * <p>This field can be used to query the feature set of a camera device
+     * at a more granular level than capabilities. This is especially
+     * important for optional keys that are not listed under any capability
+     * in ACAMERA_REQUEST_AVAILABLE_CAPABILITIES.</p>
+     *
+     * @see ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
+     */
+    ACAMERA_REQUEST_AVAILABLE_REQUEST_KEYS =                    // int32[n]
+            ACAMERA_REQUEST_START + 13,
+    /**
+     * <p>A list of all keys that the camera device has available
+     * to query with {@link ACameraMetadata} from
+     * {@link ACameraCaptureSession_captureCallback_result}.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>Attempting to get a key from a CaptureResult that is not
+     * listed here will always return a <code>null</code> value. Getting a key from
+     * a CaptureResult that is listed here will generally never return a <code>null</code>
+     * value.</p>
+     * <p>The following keys may return <code>null</code> unless they are enabled:</p>
+     * <ul>
+     * <li>ACAMERA_STATISTICS_LENS_SHADING_MAP (non-null iff ACAMERA_STATISTICS_LENS_SHADING_MAP_MODE == ON)</li>
+     * </ul>
+     * <p>(Those sometimes-null keys will nevertheless be listed here
+     * if they are available.)</p>
+     * <p>This field can be used to query the feature set of a camera device
+     * at a more granular level than capabilities. This is especially
+     * important for optional keys that are not listed under any capability
+     * in ACAMERA_REQUEST_AVAILABLE_CAPABILITIES.</p>
+     *
+     * @see ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
+     * @see ACAMERA_STATISTICS_LENS_SHADING_MAP
+     * @see ACAMERA_STATISTICS_LENS_SHADING_MAP_MODE
+     */
+    ACAMERA_REQUEST_AVAILABLE_RESULT_KEYS =                     // int32[n]
+            ACAMERA_REQUEST_START + 14,
+    /**
+     * <p>A list of all keys that the camera device has available
+     * to query with {@link ACameraMetadata} from
+     * {@link ACameraManager_getCameraCharacteristics}.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>This entry follows the same rules as
+     * ACAMERA_REQUEST_AVAILABLE_RESULT_KEYS (except that it applies for
+     * CameraCharacteristics instead of CaptureResult). See above for more
+     * details.</p>
+     *
+     * @see ACAMERA_REQUEST_AVAILABLE_RESULT_KEYS
+     */
+    ACAMERA_REQUEST_AVAILABLE_CHARACTERISTICS_KEYS =            // int32[n]
+            ACAMERA_REQUEST_START + 15,
+    ACAMERA_REQUEST_END,
+
+    /**
+     * <p>The desired region of the sensor to read out for this capture.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul>
+     *
+     * <p>This control can be used to implement digital zoom.</p>
+     * <p>The data representation is int[4], which maps to (left, top, width, height).</p>
+     * <p>The crop region coordinate system is based off
+     * ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE, with <code>(0, 0)</code> being the
+     * top-left corner of the sensor active array.</p>
+     * <p>Output streams use this rectangle to produce their output,
+     * cropping to a smaller region if necessary to maintain the
+     * stream's aspect ratio, then scaling the sensor input to
+     * match the output's configured resolution.</p>
+     * <p>The crop region is applied after the RAW to other color
+     * space (e.g. YUV) conversion. Since raw streams
+     * (e.g. RAW16) don't have the conversion stage, they are not
+     * croppable. The crop region will be ignored by raw streams.</p>
+     * <p>For non-raw streams, any additional per-stream cropping will
+     * be done to maximize the final pixel area of the stream.</p>
+     * <p>For example, if the crop region is set to a 4:3 aspect
+     * ratio, then 4:3 streams will use the exact crop
+     * region. 16:9 streams will further crop vertically
+     * (letterbox).</p>
+     * <p>Conversely, if the crop region is set to a 16:9, then 4:3
+     * outputs will crop horizontally (pillarbox), and 16:9
+     * streams will match exactly. These additional crops will
+     * be centered within the crop region.</p>
+     * <p>The width and height of the crop region cannot
+     * be set to be smaller than
+     * <code>floor( activeArraySize.width / ACAMERA_SCALER_AVAILABLE_MAX_DIGITAL_ZOOM )</code> and
+     * <code>floor( activeArraySize.height / ACAMERA_SCALER_AVAILABLE_MAX_DIGITAL_ZOOM )</code>, respectively.</p>
+     * <p>The camera device may adjust the crop region to account
+     * for rounding and other hardware requirements; the final
+     * crop region used will be included in the output capture
+     * result.</p>
+     *
+     * @see ACAMERA_SCALER_AVAILABLE_MAX_DIGITAL_ZOOM
+     * @see ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
+     */
+    ACAMERA_SCALER_CROP_REGION =                                // int32[4]
+            ACAMERA_SCALER_START,
+    /**
+     * <p>The maximum ratio between both active area width
+     * and crop region width, and active area height and
+     * crop region height, for ACAMERA_SCALER_CROP_REGION.</p>
+     *
+     * @see ACAMERA_SCALER_CROP_REGION
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>This represents the maximum amount of zooming possible by
+     * the camera device, or equivalently, the minimum cropping
+     * window size.</p>
+     * <p>Crop regions that have a width or height that is smaller
+     * than this ratio allows will be rounded up to the minimum
+     * allowed size by the camera device.</p>
+     */
+    ACAMERA_SCALER_AVAILABLE_MAX_DIGITAL_ZOOM =                 // float
+            ACAMERA_SCALER_START + 4,
+    /**
+     * <p>The available stream configurations that this
+     * camera device supports
+     * (i.e. format, width, height, output/input stream).</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>The configurations are listed as <code>(format, width, height, input?)</code>
+     * tuples.</p>
+     * <p>For a given use case, the actual maximum supported resolution
+     * may be lower than what is listed here, depending on the destination
+     * Surface for the image data. For example, for recording video,
+     * the video encoder chosen may have a maximum size limit (e.g. 1080p)
+     * smaller than what the camera (e.g. maximum resolution is 3264x2448)
+     * can provide.</p>
+     * <p>Please reference the documentation for the image data destination to
+     * check if it limits the maximum size for image data.</p>
+     * <p>Not all output formats may be supported in a configuration with
+     * an input stream of a particular format. For more details, see
+     * android.scaler.availableInputOutputFormatsMap.</p>
+     * <p>The following table describes the minimum required output stream
+     * configurations based on the hardware level
+     * (ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL):</p>
+     * <p>Format         | Size                                         | Hardware Level | Notes
+     * :-------------:|:--------------------------------------------:|:--------------:|:--------------:
+     * JPEG           | ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE          | Any            |
+     * JPEG           | 1920x1080 (1080p)                            | Any            | if 1080p &lt;= activeArraySize
+     * JPEG           | 1280x720 (720)                               | Any            | if 720p &lt;= activeArraySize
+     * JPEG           | 640x480 (480p)                               | Any            | if 480p &lt;= activeArraySize
+     * JPEG           | 320x240 (240p)                               | Any            | if 240p &lt;= activeArraySize
+     * YUV_420_888    | all output sizes available for JPEG          | FULL           |
+     * YUV_420_888    | all output sizes available for JPEG, up to the maximum video size | LIMITED        |
+     * IMPLEMENTATION_DEFINED | same as YUV_420_888                  | Any            |</p>
+     * <p>Refer to ACAMERA_REQUEST_AVAILABLE_CAPABILITIES for additional
+     * mandatory stream configurations on a per-capability basis.</p>
+     *
+     * @see ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL
+     * @see ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
+     * @see ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
+     */
+    ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS =            // int32[n*4] (enum)
+            ACAMERA_SCALER_START + 10,
+    /**
+     * <p>This lists the minimum frame duration for each
+     * format/size combination.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>This should correspond to the frame duration when only that
+     * stream is active, with all processing (typically in android.*.mode)
+     * set to either OFF or FAST.</p>
+     * <p>When multiple streams are used in a request, the minimum frame
+     * duration will be max(individual stream min durations).</p>
+     * <p>The minimum frame duration of a stream (of a particular format, size)
+     * is the same regardless of whether the stream is input or output.</p>
+     * <p>See ACAMERA_SENSOR_FRAME_DURATION and
+     * ACAMERA_SCALER_AVAILABLE_STALL_DURATIONS for more details about
+     * calculating the max frame rate.</p>
+     *
+     * @see ACAMERA_SCALER_AVAILABLE_STALL_DURATIONS
+     * @see ACAMERA_SENSOR_FRAME_DURATION
+     */
+    ACAMERA_SCALER_AVAILABLE_MIN_FRAME_DURATIONS =              // int64[4*n]
+            ACAMERA_SCALER_START + 11,
+    /**
+     * <p>This lists the maximum stall duration for each
+     * output format/size combination.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>A stall duration is how much extra time would get added
+     * to the normal minimum frame duration for a repeating request
+     * that has streams with non-zero stall.</p>
+     * <p>For example, consider JPEG captures which have the following
+     * characteristics:</p>
+     * <ul>
+     * <li>JPEG streams act like processed YUV streams in requests for which
+     * they are not included; in requests in which they are directly
+     * referenced, they act as JPEG streams. This is because supporting a
+     * JPEG stream requires the underlying YUV data to always be ready for
+     * use by a JPEG encoder, but the encoder will only be used (and impact
+     * frame duration) on requests that actually reference a JPEG stream.</li>
+     * <li>The JPEG processor can run concurrently to the rest of the camera
+     * pipeline, but cannot process more than 1 capture at a time.</li>
+     * </ul>
+     * <p>In other words, using a repeating YUV request would result
+     * in a steady frame rate (let's say it's 30 FPS). If a single
+     * JPEG request is submitted periodically, the frame rate will stay
+     * at 30 FPS (as long as we wait for the previous JPEG to return each
+     * time). If we try to submit a repeating YUV + JPEG request, then
+     * the frame rate will drop from 30 FPS.</p>
+     * <p>In general, submitting a new request with a non-0 stall time
+     * stream will <em>not</em> cause a frame rate drop unless there are still
+     * outstanding buffers for that stream from previous requests.</p>
+     * <p>Submitting a repeating request with streams (call this <code>S</code>)
+     * is the same as setting the minimum frame duration from
+     * the normal minimum frame duration corresponding to <code>S</code>, added with
+     * the maximum stall duration for <code>S</code>.</p>
+     * <p>If interleaving requests with and without a stall duration,
+     * a request will stall by the maximum of the remaining times
+     * for each can-stall stream with outstanding buffers.</p>
+     * <p>This means that a stalling request will not have an exposure start
+     * until the stall has completed.</p>
+     * <p>This should correspond to the stall duration when only that stream is
+     * active, with all processing (typically in android.*.mode) set to FAST
+     * or OFF. Setting any of the processing modes to HIGH_QUALITY
+     * effectively results in an indeterminate stall duration for all
+     * streams in a request (the regular stall calculation rules are
+     * ignored).</p>
+     * <p>The following formats may always have a stall duration:</p>
+     * <ul>
+     * <li>{@link AIMAGE_FORMAT_JPEG}</li>
+     * <li>{@link AIMAGE_FORMAT_RAW16}</li>
+     * </ul>
+     * <p>The following formats will never have a stall duration:</p>
+     * <ul>
+     * <li>{@link AIMAGE_FORMAT_YUV_420_888}</li>
+     * <li>{@link AIMAGE_FORMAT_RAW10}</li>
+     * </ul>
+     * <p>All other formats may or may not have an allowed stall duration on
+     * a per-capability basis; refer to ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
+     * for more details.</p>
+     * <p>See ACAMERA_SENSOR_FRAME_DURATION for more information about
+     * calculating the max frame rate (absent stalls).</p>
+     *
+     * @see ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
+     * @see ACAMERA_SENSOR_FRAME_DURATION
+     */
+    ACAMERA_SCALER_AVAILABLE_STALL_DURATIONS =                  // int64[4*n]
+            ACAMERA_SCALER_START + 12,
+    /**
+     * <p>The crop type that this camera device supports.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>When passing a non-centered crop region (ACAMERA_SCALER_CROP_REGION) to a camera
+     * device that only supports CENTER_ONLY cropping, the camera device will move the
+     * crop region to the center of the sensor active array (ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE)
+     * and keep the crop region width and height unchanged. The camera device will return the
+     * final used crop region in metadata result ACAMERA_SCALER_CROP_REGION.</p>
+     * <p>Camera devices that support FREEFORM cropping will support any crop region that
+     * is inside of the active array. The camera device will apply the same crop region and
+     * return the final used crop region in capture result metadata ACAMERA_SCALER_CROP_REGION.</p>
+     * <p>LEGACY capability devices will only support CENTER_ONLY cropping.</p>
+     *
+     * @see ACAMERA_SCALER_CROP_REGION
+     * @see ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
+     */
+    ACAMERA_SCALER_CROPPING_TYPE =                              // byte (enum)
+            ACAMERA_SCALER_START + 13,
+    ACAMERA_SCALER_END,
+
+    /**
+     * <p>Duration each pixel is exposed to
+     * light.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul>
+     *
+     * <p>If the sensor can't expose this exact duration, it will shorten the
+     * duration exposed to the nearest possible value (rather than expose longer).
+     * The final exposure time used will be available in the output capture result.</p>
+     * <p>This control is only effective if ACAMERA_CONTROL_AE_MODE or ACAMERA_CONTROL_MODE is set to
+     * OFF; otherwise the auto-exposure algorithm will override this value.</p>
+     *
+     * @see ACAMERA_CONTROL_AE_MODE
+     * @see ACAMERA_CONTROL_MODE
+     */
+    ACAMERA_SENSOR_EXPOSURE_TIME =                              // int64
+            ACAMERA_SENSOR_START,
+    /**
+     * <p>Duration from start of frame exposure to
+     * start of next frame exposure.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul>
+     *
+     * <p>The maximum frame rate that can be supported by a camera subsystem is
+     * a function of many factors:</p>
+     * <ul>
+     * <li>Requested resolutions of output image streams</li>
+     * <li>Availability of binning / skipping modes on the imager</li>
+     * <li>The bandwidth of the imager interface</li>
+     * <li>The bandwidth of the various ISP processing blocks</li>
+     * </ul>
+     * <p>Since these factors can vary greatly between different ISPs and
+     * sensors, the camera abstraction tries to represent the bandwidth
+     * restrictions with as simple a model as possible.</p>
+     * <p>The model presented has the following characteristics:</p>
+     * <ul>
+     * <li>The image sensor is always configured to output the smallest
+     * resolution possible given the application's requested output stream
+     * sizes.  The smallest resolution is defined as being at least as large
+     * as the largest requested output stream size; the camera pipeline must
+     * never digitally upsample sensor data when the crop region covers the
+     * whole sensor. In general, this means that if only small output stream
+     * resolutions are configured, the sensor can provide a higher frame
+     * rate.</li>
+     * <li>Since any request may use any or all the currently configured
+     * output streams, the sensor and ISP must be configured to support
+     * scaling a single capture to all the streams at the same time.  This
+     * means the camera pipeline must be ready to produce the largest
+     * requested output size without any delay.  Therefore, the overall
+     * frame rate of a given configured stream set is governed only by the
+     * largest requested stream resolution.</li>
+     * <li>Using more than one output stream in a request does not affect the
+     * frame duration.</li>
+     * <li>Certain format-streams may need to do additional background processing
+     * before data is consumed/produced by that stream. These processors
+     * can run concurrently to the rest of the camera pipeline, but
+     * cannot process more than 1 capture at a time.</li>
+     * </ul>
+     * <p>The necessary information for the application, given the model above,
+     * is provided via
+     * {@link ACAMERA_SCALER_AVAILABLE_MIN_FRAME_DURATIONS}.
+     * These are used to determine the maximum frame rate / minimum frame
+     * duration that is possible for a given stream configuration.</p>
+     * <p>Specifically, the application can use the following rules to
+     * determine the minimum frame duration it can request from the camera
+     * device:</p>
+     * <ol>
+     * <li>Let the set of currently configured input/output streams
+     * be called <code>S</code>.</li>
+     * <li>Find the minimum frame durations for each stream in <code>S</code>, by looking
+     * it up in {@link ACAMERA_SCALER_AVAILABLE_MIN_FRAME_DURATIONS}
+     * (with its respective size/format). Let this set of frame durations be
+     * called <code>F</code>.</li>
+     * <li>For any given request <code>R</code>, the minimum frame duration allowed
+     * for <code>R</code> is the maximum out of all values in <code>F</code>. Let the streams
+     * used in <code>R</code> be called <code>S_r</code>.</li>
+     * </ol>
+     * <p>If none of the streams in <code>S_r</code> have a stall time (listed in {@link
+     * ACAMERA_SCALER_AVAILABLE_STALL_DURATIONS}
+     * using its respective size/format), then the frame duration in <code>F</code>
+     * determines the steady state frame rate that the application will get
+     * if it uses <code>R</code> as a repeating request. Let this special kind of
+     * request be called <code>Rsimple</code>.</p>
+     * <p>A repeating request <code>Rsimple</code> can be <em>occasionally</em> interleaved
+     * by a single capture of a new request <code>Rstall</code> (which has at least
+     * one in-use stream with a non-0 stall time) and if <code>Rstall</code> has the
+     * same minimum frame duration this will not cause a frame rate loss
+     * if all buffers from the previous <code>Rstall</code> have already been
+     * delivered.</p>
+     * <p>For more details about stalling, see
+     * {@link ACAMERA_SCALER_AVAILABLE_STALL_DURATIONS}.</p>
+     * <p>This control is only effective if ACAMERA_CONTROL_AE_MODE or ACAMERA_CONTROL_MODE is set to
+     * OFF; otherwise the auto-exposure algorithm will override this value.</p>
+     *
+     * @see ACAMERA_CONTROL_AE_MODE
+     * @see ACAMERA_CONTROL_MODE
+     */
+    ACAMERA_SENSOR_FRAME_DURATION =                             // int64
+            ACAMERA_SENSOR_START + 1,
+    /**
+     * <p>The amount of gain applied to sensor data
+     * before processing.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul>
+     *
+     * <p>The sensitivity is the standard ISO sensitivity value,
+     * as defined in ISO 12232:2006.</p>
+     * <p>The sensitivity must be within ACAMERA_SENSOR_INFO_SENSITIVITY_RANGE, and
+     * if if it less than ACAMERA_SENSOR_MAX_ANALOG_SENSITIVITY, the camera device
+     * is guaranteed to use only analog amplification for applying the gain.</p>
+     * <p>If the camera device cannot apply the exact sensitivity
+     * requested, it will reduce the gain to the nearest supported
+     * value. The final sensitivity used will be available in the
+     * output capture result.</p>
+     * <p>This control is only effective if ACAMERA_CONTROL_AE_MODE or ACAMERA_CONTROL_MODE is set to
+     * OFF; otherwise the auto-exposure algorithm will override this value.</p>
+     *
+     * @see ACAMERA_CONTROL_AE_MODE
+     * @see ACAMERA_CONTROL_MODE
+     * @see ACAMERA_SENSOR_INFO_SENSITIVITY_RANGE
+     * @see ACAMERA_SENSOR_MAX_ANALOG_SENSITIVITY
+     */
+    ACAMERA_SENSOR_SENSITIVITY =                                // int32
+            ACAMERA_SENSOR_START + 2,
+    /**
+     * <p>The standard reference illuminant used as the scene light source when
+     * calculating the ACAMERA_SENSOR_COLOR_TRANSFORM1,
+     * ACAMERA_SENSOR_CALIBRATION_TRANSFORM1, and
+     * ACAMERA_SENSOR_FORWARD_MATRIX1 matrices.</p>
+     *
+     * @see ACAMERA_SENSOR_CALIBRATION_TRANSFORM1
+     * @see ACAMERA_SENSOR_COLOR_TRANSFORM1
+     * @see ACAMERA_SENSOR_FORWARD_MATRIX1
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>The values in this key correspond to the values defined for the
+     * EXIF LightSource tag. These illuminants are standard light sources
+     * that are often used calibrating camera devices.</p>
+     * <p>If this key is present, then ACAMERA_SENSOR_COLOR_TRANSFORM1,
+     * ACAMERA_SENSOR_CALIBRATION_TRANSFORM1, and
+     * ACAMERA_SENSOR_FORWARD_MATRIX1 will also be present.</p>
+     * <p>Some devices may choose to provide a second set of calibration
+     * information for improved quality, including
+     * ACAMERA_SENSOR_REFERENCE_ILLUMINANT2 and its corresponding matrices.</p>
+     *
+     * @see ACAMERA_SENSOR_CALIBRATION_TRANSFORM1
+     * @see ACAMERA_SENSOR_COLOR_TRANSFORM1
+     * @see ACAMERA_SENSOR_FORWARD_MATRIX1
+     * @see ACAMERA_SENSOR_REFERENCE_ILLUMINANT2
+     */
+    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1 =                      // byte (enum)
+            ACAMERA_SENSOR_START + 3,
+    /**
+     * <p>The standard reference illuminant used as the scene light source when
+     * calculating the ACAMERA_SENSOR_COLOR_TRANSFORM2,
+     * ACAMERA_SENSOR_CALIBRATION_TRANSFORM2, and
+     * ACAMERA_SENSOR_FORWARD_MATRIX2 matrices.</p>
+     *
+     * @see ACAMERA_SENSOR_CALIBRATION_TRANSFORM2
+     * @see ACAMERA_SENSOR_COLOR_TRANSFORM2
+     * @see ACAMERA_SENSOR_FORWARD_MATRIX2
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>See ACAMERA_SENSOR_REFERENCE_ILLUMINANT1 for more details.</p>
+     * <p>If this key is present, then ACAMERA_SENSOR_COLOR_TRANSFORM2,
+     * ACAMERA_SENSOR_CALIBRATION_TRANSFORM2, and
+     * ACAMERA_SENSOR_FORWARD_MATRIX2 will also be present.</p>
+     *
+     * @see ACAMERA_SENSOR_CALIBRATION_TRANSFORM2
+     * @see ACAMERA_SENSOR_COLOR_TRANSFORM2
+     * @see ACAMERA_SENSOR_FORWARD_MATRIX2
+     * @see ACAMERA_SENSOR_REFERENCE_ILLUMINANT1
+     */
+    ACAMERA_SENSOR_REFERENCE_ILLUMINANT2 =                      // byte
+            ACAMERA_SENSOR_START + 4,
+    /**
+     * <p>A per-device calibration transform matrix that maps from the
+     * reference sensor colorspace to the actual device sensor colorspace.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>This matrix is used to correct for per-device variations in the
+     * sensor colorspace, and is used for processing raw buffer data.</p>
+     * <p>The matrix is expressed as a 3x3 matrix in row-major-order, and
+     * contains a per-device calibration transform that maps colors
+     * from reference sensor color space (i.e. the "golden module"
+     * colorspace) into this camera device's native sensor color
+     * space under the first reference illuminant
+     * (ACAMERA_SENSOR_REFERENCE_ILLUMINANT1).</p>
+     *
+     * @see ACAMERA_SENSOR_REFERENCE_ILLUMINANT1
+     */
+    ACAMERA_SENSOR_CALIBRATION_TRANSFORM1 =                     // rational[3*3]
+            ACAMERA_SENSOR_START + 5,
+    /**
+     * <p>A per-device calibration transform matrix that maps from the
+     * reference sensor colorspace to the actual device sensor colorspace
+     * (this is the colorspace of the raw buffer data).</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>This matrix is used to correct for per-device variations in the
+     * sensor colorspace, and is used for processing raw buffer data.</p>
+     * <p>The matrix is expressed as a 3x3 matrix in row-major-order, and
+     * contains a per-device calibration transform that maps colors
+     * from reference sensor color space (i.e. the "golden module"
+     * colorspace) into this camera device's native sensor color
+     * space under the second reference illuminant
+     * (ACAMERA_SENSOR_REFERENCE_ILLUMINANT2).</p>
+     * <p>This matrix will only be present if the second reference
+     * illuminant is present.</p>
+     *
+     * @see ACAMERA_SENSOR_REFERENCE_ILLUMINANT2
+     */
+    ACAMERA_SENSOR_CALIBRATION_TRANSFORM2 =                     // rational[3*3]
+            ACAMERA_SENSOR_START + 6,
+    /**
+     * <p>A matrix that transforms color values from CIE XYZ color space to
+     * reference sensor color space.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>This matrix is used to convert from the standard CIE XYZ color
+     * space to the reference sensor colorspace, and is used when processing
+     * raw buffer data.</p>
+     * <p>The matrix is expressed as a 3x3 matrix in row-major-order, and
+     * contains a color transform matrix that maps colors from the CIE
+     * XYZ color space to the reference sensor color space (i.e. the
+     * "golden module" colorspace) under the first reference illuminant
+     * (ACAMERA_SENSOR_REFERENCE_ILLUMINANT1).</p>
+     * <p>The white points chosen in both the reference sensor color space
+     * and the CIE XYZ colorspace when calculating this transform will
+     * match the standard white point for the first reference illuminant
+     * (i.e. no chromatic adaptation will be applied by this transform).</p>
+     *
+     * @see ACAMERA_SENSOR_REFERENCE_ILLUMINANT1
+     */
+    ACAMERA_SENSOR_COLOR_TRANSFORM1 =                           // rational[3*3]
+            ACAMERA_SENSOR_START + 7,
+    /**
+     * <p>A matrix that transforms color values from CIE XYZ color space to
+     * reference sensor color space.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>This matrix is used to convert from the standard CIE XYZ color
+     * space to the reference sensor colorspace, and is used when processing
+     * raw buffer data.</p>
+     * <p>The matrix is expressed as a 3x3 matrix in row-major-order, and
+     * contains a color transform matrix that maps colors from the CIE
+     * XYZ color space to the reference sensor color space (i.e. the
+     * "golden module" colorspace) under the second reference illuminant
+     * (ACAMERA_SENSOR_REFERENCE_ILLUMINANT2).</p>
+     * <p>The white points chosen in both the reference sensor color space
+     * and the CIE XYZ colorspace when calculating this transform will
+     * match the standard white point for the second reference illuminant
+     * (i.e. no chromatic adaptation will be applied by this transform).</p>
+     * <p>This matrix will only be present if the second reference
+     * illuminant is present.</p>
+     *
+     * @see ACAMERA_SENSOR_REFERENCE_ILLUMINANT2
+     */
+    ACAMERA_SENSOR_COLOR_TRANSFORM2 =                           // rational[3*3]
+            ACAMERA_SENSOR_START + 8,
+    /**
+     * <p>A matrix that transforms white balanced camera colors from the reference
+     * sensor colorspace to the CIE XYZ colorspace with a D50 whitepoint.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>This matrix is used to convert to the standard CIE XYZ colorspace, and
+     * is used when processing raw buffer data.</p>
+     * <p>This matrix is expressed as a 3x3 matrix in row-major-order, and contains
+     * a color transform matrix that maps white balanced colors from the
+     * reference sensor color space to the CIE XYZ color space with a D50 white
+     * point.</p>
+     * <p>Under the first reference illuminant (ACAMERA_SENSOR_REFERENCE_ILLUMINANT1)
+     * this matrix is chosen so that the standard white point for this reference
+     * illuminant in the reference sensor colorspace is mapped to D50 in the
+     * CIE XYZ colorspace.</p>
+     *
+     * @see ACAMERA_SENSOR_REFERENCE_ILLUMINANT1
+     */
+    ACAMERA_SENSOR_FORWARD_MATRIX1 =                            // rational[3*3]
+            ACAMERA_SENSOR_START + 9,
+    /**
+     * <p>A matrix that transforms white balanced camera colors from the reference
+     * sensor colorspace to the CIE XYZ colorspace with a D50 whitepoint.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>This matrix is used to convert to the standard CIE XYZ colorspace, and
+     * is used when processing raw buffer data.</p>
+     * <p>This matrix is expressed as a 3x3 matrix in row-major-order, and contains
+     * a color transform matrix that maps white balanced colors from the
+     * reference sensor color space to the CIE XYZ color space with a D50 white
+     * point.</p>
+     * <p>Under the second reference illuminant (ACAMERA_SENSOR_REFERENCE_ILLUMINANT2)
+     * this matrix is chosen so that the standard white point for this reference
+     * illuminant in the reference sensor colorspace is mapped to D50 in the
+     * CIE XYZ colorspace.</p>
+     * <p>This matrix will only be present if the second reference
+     * illuminant is present.</p>
+     *
+     * @see ACAMERA_SENSOR_REFERENCE_ILLUMINANT2
+     */
+    ACAMERA_SENSOR_FORWARD_MATRIX2 =                            // rational[3*3]
+            ACAMERA_SENSOR_START + 10,
+    /**
+     * <p>A fixed black level offset for each of the color filter arrangement
+     * (CFA) mosaic channels.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>This key specifies the zero light value for each of the CFA mosaic
+     * channels in the camera sensor.  The maximal value output by the
+     * sensor is represented by the value in ACAMERA_SENSOR_INFO_WHITE_LEVEL.</p>
+     * <p>The values are given in the same order as channels listed for the CFA
+     * layout key (see ACAMERA_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT), i.e. the
+     * nth value given corresponds to the black level offset for the nth
+     * color channel listed in the CFA.</p>
+     * <p>The black level values of captured images may vary for different
+     * capture settings (e.g., ACAMERA_SENSOR_SENSITIVITY). This key
+     * represents a coarse approximation for such case. It is recommended to
+     * use ACAMERA_SENSOR_DYNAMIC_BLACK_LEVEL or use pixels from
+     * ACAMERA_SENSOR_OPTICAL_BLACK_REGIONS directly for captures when
+     * supported by the camera device, which provides more accurate black
+     * level values. For raw capture in particular, it is recommended to use
+     * pixels from ACAMERA_SENSOR_OPTICAL_BLACK_REGIONS to calculate black
+     * level values for each frame.</p>
+     *
+     * @see ACAMERA_SENSOR_DYNAMIC_BLACK_LEVEL
+     * @see ACAMERA_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT
+     * @see ACAMERA_SENSOR_INFO_WHITE_LEVEL
+     * @see ACAMERA_SENSOR_OPTICAL_BLACK_REGIONS
+     * @see ACAMERA_SENSOR_SENSITIVITY
+     */
+    ACAMERA_SENSOR_BLACK_LEVEL_PATTERN =                        // int32[4]
+            ACAMERA_SENSOR_START + 12,
+    /**
+     * <p>Maximum sensitivity that is implemented
+     * purely through analog gain.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>For ACAMERA_SENSOR_SENSITIVITY values less than or
+     * equal to this, all applied gain must be analog. For
+     * values above this, the gain applied can be a mix of analog and
+     * digital.</p>
+     *
+     * @see ACAMERA_SENSOR_SENSITIVITY
+     */
+    ACAMERA_SENSOR_MAX_ANALOG_SENSITIVITY =                     // int32
+            ACAMERA_SENSOR_START + 13,
+    /**
+     * <p>Clockwise angle through which the output image needs to be rotated to be
+     * upright on the device screen in its native orientation.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>Also defines the direction of rolling shutter readout, which is from top to bottom in
+     * the sensor's coordinate system.</p>
+     */
+    ACAMERA_SENSOR_ORIENTATION =                                // int32
+            ACAMERA_SENSOR_START + 14,
+    /**
+     * <p>Time at start of exposure of first
+     * row of the image sensor active array, in nanoseconds.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     * </ul>
+     *
+     * <p>The timestamps are also included in all image
+     * buffers produced for the same capture, and will be identical
+     * on all the outputs.</p>
+     * <p>When ACAMERA_SENSOR_INFO_TIMESTAMP_SOURCE <code>==</code> UNKNOWN,
+     * the timestamps measure time since an unspecified starting point,
+     * and are monotonically increasing. They can be compared with the
+     * timestamps for other captures from the same camera device, but are
+     * not guaranteed to be comparable to any other time source.</p>
+     * <p>When ACAMERA_SENSOR_INFO_TIMESTAMP_SOURCE <code>==</code> REALTIME, the
+     * timestamps measure time in the same timebase as
+     * <a href="https://developer.android.com/reference/android/os/SystemClock.html#elapsedRealtimeNanos">elapsedRealtimeNanos</a>
+     * (or CLOCK_BOOTTIME), and they can
+     * be compared to other timestamps from other subsystems that
+     * are using that base.</p>
+     * <p>For reprocessing, the timestamp will match the start of exposure of
+     * the input image, i.e. {@link CaptureResult#SENSOR_TIMESTAMP the
+     * timestamp} in the TotalCaptureResult that was used to create the
+     * reprocess capture request.</p>
+     *
+     * @see ACAMERA_SENSOR_INFO_TIMESTAMP_SOURCE
+     */
+    ACAMERA_SENSOR_TIMESTAMP =                                  // int64
+            ACAMERA_SENSOR_START + 16,
+    /**
+     * <p>The estimated camera neutral color in the native sensor colorspace at
+     * the time of capture.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     * </ul>
+     *
+     * <p>This value gives the neutral color point encoded as an RGB value in the
+     * native sensor color space.  The neutral color point indicates the
+     * currently estimated white point of the scene illumination.  It can be
+     * used to interpolate between the provided color transforms when
+     * processing raw sensor data.</p>
+     * <p>The order of the values is R, G, B; where R is in the lowest index.</p>
+     */
+    ACAMERA_SENSOR_NEUTRAL_COLOR_POINT =                        // rational[3]
+            ACAMERA_SENSOR_START + 18,
+    /**
+     * <p>Noise model coefficients for each CFA mosaic channel.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     * </ul>
+     *
+     * <p>This key contains two noise model coefficients for each CFA channel
+     * corresponding to the sensor amplification (S) and sensor readout
+     * noise (O).  These are given as pairs of coefficients for each channel
+     * in the same order as channels listed for the CFA layout key
+     * (see ACAMERA_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT).  This is
+     * represented as an array of Pair&lt;Double, Double&gt;, where
+     * the first member of the Pair at index n is the S coefficient and the
+     * second member is the O coefficient for the nth color channel in the CFA.</p>
+     * <p>These coefficients are used in a two parameter noise model to describe
+     * the amount of noise present in the image for each CFA channel.  The
+     * noise model used here is:</p>
+     * <p>N(x) = sqrt(Sx + O)</p>
+     * <p>Where x represents the recorded signal of a CFA channel normalized to
+     * the range [0, 1], and S and O are the noise model coeffiecients for
+     * that channel.</p>
+     * <p>A more detailed description of the noise model can be found in the
+     * Adobe DNG specification for the NoiseProfile tag.</p>
+     *
+     * @see ACAMERA_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT
+     */
+    ACAMERA_SENSOR_NOISE_PROFILE =                              // double[2*CFA Channels]
+            ACAMERA_SENSOR_START + 19,
+    /**
+     * <p>The worst-case divergence between Bayer green channels.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     * </ul>
+     *
+     * <p>This value is an estimate of the worst case split between the
+     * Bayer green channels in the red and blue rows in the sensor color
+     * filter array.</p>
+     * <p>The green split is calculated as follows:</p>
+     * <ol>
+     * <li>A 5x5 pixel (or larger) window W within the active sensor array is
+     * chosen. The term 'pixel' here is taken to mean a group of 4 Bayer
+     * mosaic channels (R, Gr, Gb, B).  The location and size of the window
+     * chosen is implementation defined, and should be chosen to provide a
+     * green split estimate that is both representative of the entire image
+     * for this camera sensor, and can be calculated quickly.</li>
+     * <li>The arithmetic mean of the green channels from the red
+     * rows (mean_Gr) within W is computed.</li>
+     * <li>The arithmetic mean of the green channels from the blue
+     * rows (mean_Gb) within W is computed.</li>
+     * <li>The maximum ratio R of the two means is computed as follows:
+     * <code>R = max((mean_Gr + 1)/(mean_Gb + 1), (mean_Gb + 1)/(mean_Gr + 1))</code></li>
+     * </ol>
+     * <p>The ratio R is the green split divergence reported for this property,
+     * which represents how much the green channels differ in the mosaic
+     * pattern.  This value is typically used to determine the treatment of
+     * the green mosaic channels when demosaicing.</p>
+     * <p>The green split value can be roughly interpreted as follows:</p>
+     * <ul>
+     * <li>R &lt; 1.03 is a negligible split (&lt;3% divergence).</li>
+     * <li>1.20 &lt;= R &gt;= 1.03 will require some software
+     * correction to avoid demosaic errors (3-20% divergence).</li>
+     * <li>R &gt; 1.20 will require strong software correction to produce
+     * a usuable image (&gt;20% divergence).</li>
+     * </ul>
+     */
+    ACAMERA_SENSOR_GREEN_SPLIT =                                // float
+            ACAMERA_SENSOR_START + 22,
+    /**
+     * <p>A pixel <code>[R, G_even, G_odd, B]</code> that supplies the test pattern
+     * when ACAMERA_SENSOR_TEST_PATTERN_MODE is SOLID_COLOR.</p>
+     *
+     * @see ACAMERA_SENSOR_TEST_PATTERN_MODE
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul>
+     *
+     * <p>Each color channel is treated as an unsigned 32-bit integer.
+     * The camera device then uses the most significant X bits
+     * that correspond to how many bits are in its Bayer raw sensor
+     * output.</p>
+     * <p>For example, a sensor with RAW10 Bayer output would use the
+     * 10 most significant bits from each color channel.</p>
+     */
+    ACAMERA_SENSOR_TEST_PATTERN_DATA =                          // int32[4]
+            ACAMERA_SENSOR_START + 23,
+    /**
+     * <p>When enabled, the sensor sends a test pattern instead of
+     * doing a real exposure from the camera.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul>
+     *
+     * <p>When a test pattern is enabled, all manual sensor controls specified
+     * by ACAMERA_SENSOR_* will be ignored. All other controls should
+     * work as normal.</p>
+     * <p>For example, if manual flash is enabled, flash firing should still
+     * occur (and that the test pattern remain unmodified, since the flash
+     * would not actually affect it).</p>
+     * <p>Defaults to OFF.</p>
+     */
+    ACAMERA_SENSOR_TEST_PATTERN_MODE =                          // int32 (enum)
+            ACAMERA_SENSOR_START + 24,
+    /**
+     * <p>List of sensor test pattern modes for ACAMERA_SENSOR_TEST_PATTERN_MODE
+     * supported by this camera device.</p>
+     *
+     * @see ACAMERA_SENSOR_TEST_PATTERN_MODE
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>Defaults to OFF, and always includes OFF if defined.</p>
+     */
+    ACAMERA_SENSOR_AVAILABLE_TEST_PATTERN_MODES =               // int32[n]
+            ACAMERA_SENSOR_START + 25,
+    /**
+     * <p>Duration between the start of first row exposure
+     * and the start of last row exposure.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     * </ul>
+     *
+     * <p>This is the exposure time skew between the first and last
+     * row exposure start times. The first row and the last row are
+     * the first and last rows inside of the
+     * ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE.</p>
+     * <p>For typical camera sensors that use rolling shutters, this is also equivalent
+     * to the frame readout time.</p>
+     *
+     * @see ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
+     */
+    ACAMERA_SENSOR_ROLLING_SHUTTER_SKEW =                       // int64
+            ACAMERA_SENSOR_START + 26,
+    /**
+     * <p>List of disjoint rectangles indicating the sensor
+     * optically shielded black pixel regions.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>In most camera sensors, the active array is surrounded by some
+     * optically shielded pixel areas. By blocking light, these pixels
+     * provides a reliable black reference for black level compensation
+     * in active array region.</p>
+     * <p>The data representation is int[4], which maps to (left, top, width, height).</p>
+     * <p>This key provides a list of disjoint rectangles specifying the
+     * regions of optically shielded (with metal shield) black pixel
+     * regions if the camera device is capable of reading out these black
+     * pixels in the output raw images. In comparison to the fixed black
+     * level values reported by ACAMERA_SENSOR_BLACK_LEVEL_PATTERN, this key
+     * may provide a more accurate way for the application to calculate
+     * black level of each captured raw images.</p>
+     * <p>When this key is reported, the ACAMERA_SENSOR_DYNAMIC_BLACK_LEVEL and
+     * ACAMERA_SENSOR_DYNAMIC_WHITE_LEVEL will also be reported.</p>
+     *
+     * @see ACAMERA_SENSOR_BLACK_LEVEL_PATTERN
+     * @see ACAMERA_SENSOR_DYNAMIC_BLACK_LEVEL
+     * @see ACAMERA_SENSOR_DYNAMIC_WHITE_LEVEL
+     */
+    ACAMERA_SENSOR_OPTICAL_BLACK_REGIONS =                      // int32[4*num_regions]
+            ACAMERA_SENSOR_START + 27,
+    /**
+     * <p>A per-frame dynamic black level offset for each of the color filter
+     * arrangement (CFA) mosaic channels.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     * </ul>
+     *
+     * <p>Camera sensor black levels may vary dramatically for different
+     * capture settings (e.g. ACAMERA_SENSOR_SENSITIVITY). The fixed black
+     * level reported by ACAMERA_SENSOR_BLACK_LEVEL_PATTERN may be too
+     * inaccurate to represent the actual value on a per-frame basis. The
+     * camera device internal pipeline relies on reliable black level values
+     * to process the raw images appropriately. To get the best image
+     * quality, the camera device may choose to estimate the per frame black
+     * level values either based on optically shielded black regions
+     * (ACAMERA_SENSOR_OPTICAL_BLACK_REGIONS) or its internal model.</p>
+     * <p>This key reports the camera device estimated per-frame zero light
+     * value for each of the CFA mosaic channels in the camera sensor. The
+     * ACAMERA_SENSOR_BLACK_LEVEL_PATTERN may only represent a coarse
+     * approximation of the actual black level values. This value is the
+     * black level used in camera device internal image processing pipeline
+     * and generally more accurate than the fixed black level values.
+     * However, since they are estimated values by the camera device, they
+     * may not be as accurate as the black level values calculated from the
+     * optical black pixels reported by ACAMERA_SENSOR_OPTICAL_BLACK_REGIONS.</p>
+     * <p>The values are given in the same order as channels listed for the CFA
+     * layout key (see ACAMERA_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT), i.e. the
+     * nth value given corresponds to the black level offset for the nth
+     * color channel listed in the CFA.</p>
+     * <p>This key will be available if ACAMERA_SENSOR_OPTICAL_BLACK_REGIONS is
+     * available or the camera device advertises this key via
+     * {@link ACAMERA_REQUEST_AVAILABLE_RESULT_KEYS}.</p>
+     *
+     * @see ACAMERA_SENSOR_BLACK_LEVEL_PATTERN
+     * @see ACAMERA_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT
+     * @see ACAMERA_SENSOR_OPTICAL_BLACK_REGIONS
+     * @see ACAMERA_SENSOR_SENSITIVITY
+     */
+    ACAMERA_SENSOR_DYNAMIC_BLACK_LEVEL =                        // float[4]
+            ACAMERA_SENSOR_START + 28,
+    /**
+     * <p>Maximum raw value output by sensor for this frame.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     * </ul>
+     *
+     * <p>Since the ACAMERA_SENSOR_BLACK_LEVEL_PATTERN may change for different
+     * capture settings (e.g., ACAMERA_SENSOR_SENSITIVITY), the white
+     * level will change accordingly. This key is similar to
+     * ACAMERA_SENSOR_INFO_WHITE_LEVEL, but specifies the camera device
+     * estimated white level for each frame.</p>
+     * <p>This key will be available if ACAMERA_SENSOR_OPTICAL_BLACK_REGIONS is
+     * available or the camera device advertises this key via
+     * {@link ACAMERA_REQUEST_AVAILABLE_RESULT_KEYS}.</p>
+     *
+     * @see ACAMERA_SENSOR_BLACK_LEVEL_PATTERN
+     * @see ACAMERA_SENSOR_INFO_WHITE_LEVEL
+     * @see ACAMERA_SENSOR_OPTICAL_BLACK_REGIONS
+     * @see ACAMERA_SENSOR_SENSITIVITY
+     */
+    ACAMERA_SENSOR_DYNAMIC_WHITE_LEVEL =                        // int32
+            ACAMERA_SENSOR_START + 29,
+    ACAMERA_SENSOR_END,
+
+    /**
+     * <p>The area of the image sensor which corresponds to active pixels after any geometric
+     * distortion correction has been applied.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>This is the rectangle representing the size of the active region of the sensor (i.e.
+     * the region that actually receives light from the scene) after any geometric correction
+     * has been applied, and should be treated as the maximum size in pixels of any of the
+     * image output formats aside from the raw formats.</p>
+     * <p>This rectangle is defined relative to the full pixel array; (0,0) is the top-left of
+     * the full pixel array, and the size of the full pixel array is given by
+     * ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE.</p>
+     * <p>The data representation is int[4], which maps to (left, top, width, height).</p>
+     * <p>The coordinate system for most other keys that list pixel coordinates, including
+     * ACAMERA_SCALER_CROP_REGION, is defined relative to the active array rectangle given in
+     * this field, with <code>(0, 0)</code> being the top-left of this rectangle.</p>
+     * <p>The active array may be smaller than the full pixel array, since the full array may
+     * include black calibration pixels or other inactive regions, and geometric correction
+     * resulting in scaling or cropping may have been applied.</p>
+     *
+     * @see ACAMERA_SCALER_CROP_REGION
+     * @see ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE
+     */
+    ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE =                     // int32[4]
+            ACAMERA_SENSOR_INFO_START,
+    /**
+     * <p>Range of sensitivities for ACAMERA_SENSOR_SENSITIVITY supported by this
+     * camera device.</p>
+     *
+     * @see ACAMERA_SENSOR_SENSITIVITY
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>The values are the standard ISO sensitivity values,
+     * as defined in ISO 12232:2006.</p>
+     */
+    ACAMERA_SENSOR_INFO_SENSITIVITY_RANGE =                     // int32[2]
+            ACAMERA_SENSOR_INFO_START + 1,
+    /**
+     * <p>The arrangement of color filters on sensor;
+     * represents the colors in the top-left 2x2 section of
+     * the sensor, in reading order.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>None</p>
+     */
+    ACAMERA_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT =              // byte (enum)
+            ACAMERA_SENSOR_INFO_START + 2,
+    /**
+     * <p>The range of image exposure times for ACAMERA_SENSOR_EXPOSURE_TIME supported
+     * by this camera device.</p>
+     *
+     * @see ACAMERA_SENSOR_EXPOSURE_TIME
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>None</p>
+     */
+    ACAMERA_SENSOR_INFO_EXPOSURE_TIME_RANGE =                   // int64[2]
+            ACAMERA_SENSOR_INFO_START + 3,
+    /**
+     * <p>The maximum possible frame duration (minimum frame rate) for
+     * ACAMERA_SENSOR_FRAME_DURATION that is supported this camera device.</p>
+     *
+     * @see ACAMERA_SENSOR_FRAME_DURATION
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>Attempting to use frame durations beyond the maximum will result in the frame
+     * duration being clipped to the maximum. See that control for a full definition of frame
+     * durations.</p>
+     * <p>Refer to {@link
+     * ACAMERA_SCALER_AVAILABLE_MIN_FRAME_DURATIONS}
+     * for the minimum frame duration values.</p>
+     */
+    ACAMERA_SENSOR_INFO_MAX_FRAME_DURATION =                    // int64
+            ACAMERA_SENSOR_INFO_START + 4,
+    /**
+     * <p>The physical dimensions of the full pixel
+     * array.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>This is the physical size of the sensor pixel
+     * array defined by ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE.</p>
+     *
+     * @see ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE
+     */
+    ACAMERA_SENSOR_INFO_PHYSICAL_SIZE =                         // float[2]
+            ACAMERA_SENSOR_INFO_START + 5,
+    /**
+     * <p>Dimensions of the full pixel array, possibly
+     * including black calibration pixels.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>The pixel count of the full pixel array of the image sensor, which covers
+     * ACAMERA_SENSOR_INFO_PHYSICAL_SIZE area.  This represents the full pixel dimensions of
+     * the raw buffers produced by this sensor.</p>
+     * <p>If a camera device supports raw sensor formats, either this or
+     * ACAMERA_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE is the maximum dimensions for the raw
+     * output formats listed in ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS (this depends on
+     * whether or not the image sensor returns buffers containing pixels that are not
+     * part of the active array region for blacklevel calibration or other purposes).</p>
+     * <p>Some parts of the full pixel array may not receive light from the scene,
+     * or be otherwise inactive.  The ACAMERA_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE key
+     * defines the rectangle of active pixels that will be included in processed image
+     * formats.</p>
+     *
+     * @see ACAMERA_SENSOR_INFO_PHYSICAL_SIZE
+     * @see ACAMERA_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE
+     */
+    ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE =                      // int32[2]
+            ACAMERA_SENSOR_INFO_START + 6,
+    /**
+     * <p>Maximum raw value output by sensor.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>This specifies the fully-saturated encoding level for the raw
+     * sample values from the sensor.  This is typically caused by the
+     * sensor becoming highly non-linear or clipping. The minimum for
+     * each channel is specified by the offset in the
+     * ACAMERA_SENSOR_BLACK_LEVEL_PATTERN key.</p>
+     * <p>The white level is typically determined either by sensor bit depth
+     * (8-14 bits is expected), or by the point where the sensor response
+     * becomes too non-linear to be useful.  The default value for this is
+     * maximum representable value for a 16-bit raw sample (2^16 - 1).</p>
+     * <p>The white level values of captured images may vary for different
+     * capture settings (e.g., ACAMERA_SENSOR_SENSITIVITY). This key
+     * represents a coarse approximation for such case. It is recommended
+     * to use ACAMERA_SENSOR_DYNAMIC_WHITE_LEVEL for captures when supported
+     * by the camera device, which provides more accurate white level values.</p>
+     *
+     * @see ACAMERA_SENSOR_BLACK_LEVEL_PATTERN
+     * @see ACAMERA_SENSOR_DYNAMIC_WHITE_LEVEL
+     * @see ACAMERA_SENSOR_SENSITIVITY
+     */
+    ACAMERA_SENSOR_INFO_WHITE_LEVEL =                           // int32
+            ACAMERA_SENSOR_INFO_START + 7,
+    /**
+     * <p>The time base source for sensor capture start timestamps.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>The timestamps provided for captures are always in nanoseconds and monotonic, but
+     * may not based on a time source that can be compared to other system time sources.</p>
+     * <p>This characteristic defines the source for the timestamps, and therefore whether they
+     * can be compared against other system time sources/timestamps.</p>
+     */
+    ACAMERA_SENSOR_INFO_TIMESTAMP_SOURCE =                      // byte (enum)
+            ACAMERA_SENSOR_INFO_START + 8,
+    /**
+     * <p>Whether the RAW images output from this camera device are subject to
+     * lens shading correction.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>If TRUE, all images produced by the camera device in the RAW image formats will
+     * have lens shading correction already applied to it. If FALSE, the images will
+     * not be adjusted for lens shading correction.
+     * See android.request.maxNumOutputRaw for a list of RAW image formats.</p>
+     * <p>This key will be <code>null</code> for all devices do not report this information.
+     * Devices with RAW capability will always report this information in this key.</p>
+     */
+    ACAMERA_SENSOR_INFO_LENS_SHADING_APPLIED =                  // byte (enum)
+            ACAMERA_SENSOR_INFO_START + 9,
+    /**
+     * <p>The area of the image sensor which corresponds to active pixels prior to the
+     * application of any geometric distortion correction.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>The data representation is int[4], which maps to (left, top, width, height).</p>
+     * <p>This is the rectangle representing the size of the active region of the sensor (i.e.
+     * the region that actually receives light from the scene) before any geometric correction
+     * has been applied, and should be treated as the active region rectangle for any of the
+     * raw formats.  All metadata associated with raw processing (e.g. the lens shading
+     * correction map, and radial distortion fields) treats the top, left of this rectangle as
+     * the origin, (0,0).</p>
+     * <p>The size of this region determines the maximum field of view and the maximum number of
+     * pixels that an image from this sensor can contain, prior to the application of
+     * geometric distortion correction. The effective maximum pixel dimensions of a
+     * post-distortion-corrected image is given by the ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
+     * field, and the effective maximum field of view for a post-distortion-corrected image
+     * can be calculated by applying the geometric distortion correction fields to this
+     * rectangle, and cropping to the rectangle given in ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE.</p>
+     * <p>E.g. to calculate position of a pixel, (x,y), in a processed YUV output image with the
+     * dimensions in ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE given the position of a pixel,
+     * (x', y'), in the raw pixel array with dimensions give in
+     * ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE:</p>
+     * <ol>
+     * <li>Choose a pixel (x', y') within the active array region of the raw buffer given in
+     * ACAMERA_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE, otherwise this pixel is considered
+     * to be outside of the FOV, and will not be shown in the processed output image.</li>
+     * <li>Apply geometric distortion correction to get the post-distortion pixel coordinate,
+     * (x_i, y_i). When applying geometric correction metadata, note that metadata for raw
+     * buffers is defined relative to the top, left of the
+     * ACAMERA_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE rectangle.</li>
+     * <li>If the resulting corrected pixel coordinate is within the region given in
+     * ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE, then the position of this pixel in the
+     * processed output image buffer is <code>(x_i - activeArray.left, y_i - activeArray.top)</code>,
+     * when the top, left coordinate of that buffer is treated as (0, 0).</li>
+     * </ol>
+     * <p>Thus, for pixel x',y' = (25, 25) on a sensor where ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE
+     * is (100,100), ACAMERA_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE is (10, 10, 100, 100),
+     * ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE is (20, 20, 80, 80), and the geometric distortion
+     * correction doesn't change the pixel coordinate, the resulting pixel selected in
+     * pixel coordinates would be x,y = (25, 25) relative to the top,left of the raw buffer
+     * with dimensions given in ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE, and would be (5, 5)
+     * relative to the top,left of post-processed YUV output buffer with dimensions given in
+     * ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE.</p>
+     * <p>The currently supported fields that correct for geometric distortion are:</p>
+     * <ol>
+     * <li>ACAMERA_LENS_RADIAL_DISTORTION.</li>
+     * </ol>
+     * <p>If all of the geometric distortion fields are no-ops, this rectangle will be the same
+     * as the post-distortion-corrected rectangle given in
+     * ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE.</p>
+     * <p>This rectangle is defined relative to the full pixel array; (0,0) is the top-left of
+     * the full pixel array, and the size of the full pixel array is given by
+     * ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE.</p>
+     * <p>The pre-correction active array may be smaller than the full pixel array, since the
+     * full array may include black calibration pixels or other inactive regions.</p>
+     *
+     * @see ACAMERA_LENS_RADIAL_DISTORTION
+     * @see ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
+     * @see ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE
+     * @see ACAMERA_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE
+     */
+    ACAMERA_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE =      // int32[4]
+            ACAMERA_SENSOR_INFO_START + 10,
+    ACAMERA_SENSOR_INFO_END,
+
+    /**
+     * <p>Quality of lens shading correction applied
+     * to the image data.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul>
+     *
+     * <p>When set to OFF mode, no lens shading correction will be applied by the
+     * camera device, and an identity lens shading map data will be provided
+     * if <code>ACAMERA_STATISTICS_LENS_SHADING_MAP_MODE == ON</code>. For example, for lens
+     * shading map with size of <code>[ 4, 3 ]</code>,
+     * the output android.statistics.lensShadingCorrectionMap for this case will be an identity
+     * map shown below:</p>
+     * <pre><code>[ 1.0, 1.0, 1.0, 1.0,  1.0, 1.0, 1.0, 1.0,
+     *  1.0, 1.0, 1.0, 1.0,  1.0, 1.0, 1.0, 1.0,
+     *  1.0, 1.0, 1.0, 1.0,  1.0, 1.0, 1.0, 1.0,
+     *  1.0, 1.0, 1.0, 1.0,  1.0, 1.0, 1.0, 1.0,
+     *  1.0, 1.0, 1.0, 1.0,  1.0, 1.0, 1.0, 1.0,
+     *  1.0, 1.0, 1.0, 1.0,  1.0, 1.0, 1.0, 1.0 ]
+     * </code></pre>
+     * <p>When set to other modes, lens shading correction will be applied by the camera
+     * device. Applications can request lens shading map data by setting
+     * ACAMERA_STATISTICS_LENS_SHADING_MAP_MODE to ON, and then the camera device will provide lens
+     * shading map data in android.statistics.lensShadingCorrectionMap; the returned shading map
+     * data will be the one applied by the camera device for this capture request.</p>
+     * <p>The shading map data may depend on the auto-exposure (AE) and AWB statistics, therefore
+     * the reliability of the map data may be affected by the AE and AWB algorithms. When AE and
+     * AWB are in AUTO modes(ACAMERA_CONTROL_AE_MODE <code>!=</code> OFF and ACAMERA_CONTROL_AWB_MODE <code>!=</code>
+     * OFF), to get best results, it is recommended that the applications wait for the AE and AWB
+     * to be converged before using the returned shading map data.</p>
+     *
+     * @see ACAMERA_CONTROL_AE_MODE
+     * @see ACAMERA_CONTROL_AWB_MODE
+     * @see ACAMERA_STATISTICS_LENS_SHADING_MAP_MODE
+     */
+    ACAMERA_SHADING_MODE =                                      // byte (enum)
+            ACAMERA_SHADING_START,
+    /**
+     * <p>List of lens shading modes for ACAMERA_SHADING_MODE that are supported by this camera device.</p>
+     *
+     * @see ACAMERA_SHADING_MODE
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>This list contains lens shading modes that can be set for the camera device.
+     * Camera devices that support the MANUAL_POST_PROCESSING capability will always
+     * list OFF and FAST mode. This includes all FULL level devices.
+     * LEGACY devices will always only support FAST mode.</p>
+     */
+    ACAMERA_SHADING_AVAILABLE_MODES =                           // byte[n]
+            ACAMERA_SHADING_START + 2,
+    ACAMERA_SHADING_END,
+
+    /**
+     * <p>Operating mode for the face detector
+     * unit.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul>
+     *
+     * <p>Whether face detection is enabled, and whether it
+     * should output just the basic fields or the full set of
+     * fields.</p>
+     */
+    ACAMERA_STATISTICS_FACE_DETECT_MODE =                       // byte (enum)
+            ACAMERA_STATISTICS_START,
+    /**
+     * <p>Operating mode for hot pixel map generation.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul>
+     *
+     * <p>If set to <code>true</code>, a hot pixel map is returned in ACAMERA_STATISTICS_HOT_PIXEL_MAP.
+     * If set to <code>false</code>, no hot pixel map will be returned.</p>
+     *
+     * @see ACAMERA_STATISTICS_HOT_PIXEL_MAP
+     */
+    ACAMERA_STATISTICS_HOT_PIXEL_MAP_MODE =                     // byte (enum)
+            ACAMERA_STATISTICS_START + 3,
+    /**
+     * <p>List of unique IDs for detected faces.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     * </ul>
+     *
+     * <p>Each detected face is given a unique ID that is valid for as long as the face is visible
+     * to the camera device.  A face that leaves the field of view and later returns may be
+     * assigned a new ID.</p>
+     * <p>Only available if ACAMERA_STATISTICS_FACE_DETECT_MODE == FULL</p>
+     *
+     * @see ACAMERA_STATISTICS_FACE_DETECT_MODE
+     */
+    ACAMERA_STATISTICS_FACE_IDS =                               // int32[n]
+            ACAMERA_STATISTICS_START + 4,
+    /**
+     * <p>List of landmarks for detected
+     * faces.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     * </ul>
+     *
+     * <p>The coordinate system is that of ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE, with
+     * <code>(0, 0)</code> being the top-left pixel of the active array.</p>
+     * <p>Only available if ACAMERA_STATISTICS_FACE_DETECT_MODE == FULL</p>
+     *
+     * @see ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
+     * @see ACAMERA_STATISTICS_FACE_DETECT_MODE
+     */
+    ACAMERA_STATISTICS_FACE_LANDMARKS =                         // int32[n*6]
+            ACAMERA_STATISTICS_START + 5,
+    /**
+     * <p>List of the bounding rectangles for detected
+     * faces.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     * </ul>
+     *
+     * <p>The data representation is int[4], which maps to (left, top, width, height).</p>
+     * <p>The coordinate system is that of ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE, with
+     * <code>(0, 0)</code> being the top-left pixel of the active array.</p>
+     * <p>Only available if ACAMERA_STATISTICS_FACE_DETECT_MODE != OFF</p>
+     *
+     * @see ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
+     * @see ACAMERA_STATISTICS_FACE_DETECT_MODE
+     */
+    ACAMERA_STATISTICS_FACE_RECTANGLES =                        // int32[n*4]
+            ACAMERA_STATISTICS_START + 6,
+    /**
+     * <p>List of the face confidence scores for
+     * detected faces</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     * </ul>
+     *
+     * <p>Only available if ACAMERA_STATISTICS_FACE_DETECT_MODE != OFF.</p>
+     *
+     * @see ACAMERA_STATISTICS_FACE_DETECT_MODE
+     */
+    ACAMERA_STATISTICS_FACE_SCORES =                            // byte[n]
+            ACAMERA_STATISTICS_START + 7,
+    /**
+     * <p>The shading map is a low-resolution floating-point map
+     * that lists the coefficients used to correct for vignetting and color shading,
+     * for each Bayer color channel of RAW image data.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     * </ul>
+     *
+     * <p>The map provided here is the same map that is used by the camera device to
+     * correct both color shading and vignetting for output non-RAW images.</p>
+     * <p>When there is no lens shading correction applied to RAW
+     * output images (ACAMERA_SENSOR_INFO_LENS_SHADING_APPLIED <code>==</code>
+     * false), this map is the complete lens shading correction
+     * map; when there is some lens shading correction applied to
+     * the RAW output image (ACAMERA_SENSOR_INFO_LENS_SHADING_APPLIED<code>==</code> true), this map reports the remaining lens shading
+     * correction map that needs to be applied to get shading
+     * corrected images that match the camera device's output for
+     * non-RAW formats.</p>
+     * <p>For a complete shading correction map, the least shaded
+     * section of the image will have a gain factor of 1; all
+     * other sections will have gains above 1.</p>
+     * <p>When ACAMERA_COLOR_CORRECTION_MODE = TRANSFORM_MATRIX, the map
+     * will take into account the colorCorrection settings.</p>
+     * <p>The shading map is for the entire active pixel array, and is not
+     * affected by the crop region specified in the request. Each shading map
+     * entry is the value of the shading compensation map over a specific
+     * pixel on the sensor.  Specifically, with a (N x M) resolution shading
+     * map, and an active pixel array size (W x H), shading map entry
+     * (x,y) ϵ (0 ... N-1, 0 ... M-1) is the value of the shading map at
+     * pixel ( ((W-1)/(N-1)) * x, ((H-1)/(M-1)) * y) for the four color channels.
+     * The map is assumed to be bilinearly interpolated between the sample points.</p>
+     * <p>The channel order is [R, Geven, Godd, B], where Geven is the green
+     * channel for the even rows of a Bayer pattern, and Godd is the odd rows.
+     * The shading map is stored in a fully interleaved format, and its size
+     * is provided in the camera static metadata by ACAMERA_LENS_INFO_SHADING_MAP_SIZE.</p>
+     * <p>The shading map will generally have on the order of 30-40 rows and columns,
+     * and will be smaller than 64x64.</p>
+     * <p>As an example, given a very small map defined as:</p>
+     * <pre><code>ACAMERA_LENS_INFO_SHADING_MAP_SIZE = [ 4, 3 ]
+     * ACAMERA_STATISTICS_LENS_SHADING_MAP =
+     * [ 1.3, 1.2, 1.15, 1.2,  1.2, 1.2, 1.15, 1.2,
+     *     1.1, 1.2, 1.2, 1.2,  1.3, 1.2, 1.3, 1.3,
+     *   1.2, 1.2, 1.25, 1.1,  1.1, 1.1, 1.1, 1.0,
+     *     1.0, 1.0, 1.0, 1.0,  1.2, 1.3, 1.25, 1.2,
+     *   1.3, 1.2, 1.2, 1.3,   1.2, 1.15, 1.1, 1.2,
+     *     1.2, 1.1, 1.0, 1.2,  1.3, 1.15, 1.2, 1.3 ]
+     * </code></pre>
+     * <p>The low-resolution scaling map images for each channel are
+     * (displayed using nearest-neighbor interpolation):</p>
+     * <p><img alt="Red lens shading map" src="../images/camera2/metadata/android.statistics.lensShadingMap/red_shading.png" />
+     * <img alt="Green (even rows) lens shading map" src="../images/camera2/metadata/android.statistics.lensShadingMap/green_e_shading.png" />
+     * <img alt="Green (odd rows) lens shading map" src="../images/camera2/metadata/android.statistics.lensShadingMap/green_o_shading.png" />
+     * <img alt="Blue lens shading map" src="../images/camera2/metadata/android.statistics.lensShadingMap/blue_shading.png" /></p>
+     * <p>As a visualization only, inverting the full-color map to recover an
+     * image of a gray wall (using bicubic interpolation for visual quality)
+     * as captured by the sensor gives:</p>
+     * <p><img alt="Image of a uniform white wall (inverse shading map)" src="../images/camera2/metadata/android.statistics.lensShadingMap/inv_shading.png" /></p>
+     * <p>Note that the RAW image data might be subject to lens shading
+     * correction not reported on this map. Query
+     * ACAMERA_SENSOR_INFO_LENS_SHADING_APPLIED to see if RAW image data has subject
+     * to lens shading correction. If ACAMERA_SENSOR_INFO_LENS_SHADING_APPLIED
+     * is TRUE, the RAW image data is subject to partial or full lens shading
+     * correction. In the case full lens shading correction is applied to RAW
+     * images, the gain factor map reported in this key will contain all 1.0 gains.
+     * In other words, the map reported in this key is the remaining lens shading
+     * that needs to be applied on the RAW image to get images without lens shading
+     * artifacts. See android.request.maxNumOutputRaw for a list of RAW image
+     * formats.</p>
+     *
+     * @see ACAMERA_COLOR_CORRECTION_MODE
+     * @see ACAMERA_LENS_INFO_SHADING_MAP_SIZE
+     * @see ACAMERA_SENSOR_INFO_LENS_SHADING_APPLIED
+     * @see ACAMERA_STATISTICS_LENS_SHADING_MAP
+     */
+    ACAMERA_STATISTICS_LENS_SHADING_MAP =                       // float[4*n*m]
+            ACAMERA_STATISTICS_START + 11,
+    /**
+     * <p>The camera device estimated scene illumination lighting
+     * frequency.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     * </ul>
+     *
+     * <p>Many light sources, such as most fluorescent lights, flicker at a rate
+     * that depends on the local utility power standards. This flicker must be
+     * accounted for by auto-exposure routines to avoid artifacts in captured images.
+     * The camera device uses this entry to tell the application what the scene
+     * illuminant frequency is.</p>
+     * <p>When manual exposure control is enabled
+     * (<code>ACAMERA_CONTROL_AE_MODE == OFF</code> or <code>ACAMERA_CONTROL_MODE ==
+     * OFF</code>), the ACAMERA_CONTROL_AE_ANTIBANDING_MODE doesn't perform
+     * antibanding, and the application can ensure it selects
+     * exposure times that do not cause banding issues by looking
+     * into this metadata field. See
+     * ACAMERA_CONTROL_AE_ANTIBANDING_MODE for more details.</p>
+     * <p>Reports NONE if there doesn't appear to be flickering illumination.</p>
+     *
+     * @see ACAMERA_CONTROL_AE_ANTIBANDING_MODE
+     * @see ACAMERA_CONTROL_AE_MODE
+     * @see ACAMERA_CONTROL_MODE
+     */
+    ACAMERA_STATISTICS_SCENE_FLICKER =                          // byte (enum)
+            ACAMERA_STATISTICS_START + 14,
+    /**
+     * <p>List of <code>(x, y)</code> coordinates of hot/defective pixels on the sensor.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     * </ul>
+     *
+     * <p>A coordinate <code>(x, y)</code> must lie between <code>(0, 0)</code>, and
+     * <code>(width - 1, height - 1)</code> (inclusive), which are the top-left and
+     * bottom-right of the pixel array, respectively. The width and
+     * height dimensions are given in ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE.
+     * This may include hot pixels that lie outside of the active array
+     * bounds given by ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE.</p>
+     *
+     * @see ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
+     * @see ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE
+     */
+    ACAMERA_STATISTICS_HOT_PIXEL_MAP =                          // int32[2*n]
+            ACAMERA_STATISTICS_START + 15,
+    /**
+     * <p>Whether the camera device will output the lens
+     * shading map in output result metadata.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul>
+     *
+     * <p>When set to ON,
+     * ACAMERA_STATISTICS_LENS_SHADING_MAP will be provided in
+     * the output result metadata.</p>
+     * <p>ON is always supported on devices with the RAW capability.</p>
+     *
+     * @see ACAMERA_STATISTICS_LENS_SHADING_MAP
+     */
+    ACAMERA_STATISTICS_LENS_SHADING_MAP_MODE =                  // byte (enum)
+            ACAMERA_STATISTICS_START + 16,
+    ACAMERA_STATISTICS_END,
+
+    /**
+     * <p>List of face detection modes for ACAMERA_STATISTICS_FACE_DETECT_MODE that are
+     * supported by this camera device.</p>
+     *
+     * @see ACAMERA_STATISTICS_FACE_DETECT_MODE
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>OFF is always supported.</p>
+     */
+    ACAMERA_STATISTICS_INFO_AVAILABLE_FACE_DETECT_MODES =       // byte[n]
+            ACAMERA_STATISTICS_INFO_START,
+    /**
+     * <p>The maximum number of simultaneously detectable
+     * faces.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>None</p>
+     */
+    ACAMERA_STATISTICS_INFO_MAX_FACE_COUNT =                    // int32
+            ACAMERA_STATISTICS_INFO_START + 2,
+    /**
+     * <p>List of hot pixel map output modes for ACAMERA_STATISTICS_HOT_PIXEL_MAP_MODE that are
+     * supported by this camera device.</p>
+     *
+     * @see ACAMERA_STATISTICS_HOT_PIXEL_MAP_MODE
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>If no hotpixel map output is available for this camera device, this will contain only
+     * <code>false</code>.</p>
+     * <p>ON is always supported on devices with the RAW capability.</p>
+     */
+    ACAMERA_STATISTICS_INFO_AVAILABLE_HOT_PIXEL_MAP_MODES =     // byte[n]
+            ACAMERA_STATISTICS_INFO_START + 6,
+    /**
+     * <p>List of lens shading map output modes for ACAMERA_STATISTICS_LENS_SHADING_MAP_MODE that
+     * are supported by this camera device.</p>
+     *
+     * @see ACAMERA_STATISTICS_LENS_SHADING_MAP_MODE
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>If no lens shading map output is available for this camera device, this key will
+     * contain only OFF.</p>
+     * <p>ON is always supported on devices with the RAW capability.
+     * LEGACY mode devices will always only support OFF.</p>
+     */
+    ACAMERA_STATISTICS_INFO_AVAILABLE_LENS_SHADING_MAP_MODES =  // byte[n]
+            ACAMERA_STATISTICS_INFO_START + 7,
+    ACAMERA_STATISTICS_INFO_END,
+
+    /**
+     * <p>Tonemapping / contrast / gamma curve for the blue
+     * channel, to use when ACAMERA_TONEMAP_MODE is
+     * CONTRAST_CURVE.</p>
+     *
+     * @see ACAMERA_TONEMAP_MODE
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul>
+     *
+     * <p>See ACAMERA_TONEMAP_CURVE_RED for more details.</p>
+     *
+     * @see ACAMERA_TONEMAP_CURVE_RED
+     */
+    ACAMERA_TONEMAP_CURVE_BLUE =                                // float[n*2]
+            ACAMERA_TONEMAP_START,
+    /**
+     * <p>Tonemapping / contrast / gamma curve for the green
+     * channel, to use when ACAMERA_TONEMAP_MODE is
+     * CONTRAST_CURVE.</p>
+     *
+     * @see ACAMERA_TONEMAP_MODE
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul>
+     *
+     * <p>See ACAMERA_TONEMAP_CURVE_RED for more details.</p>
+     *
+     * @see ACAMERA_TONEMAP_CURVE_RED
+     */
+    ACAMERA_TONEMAP_CURVE_GREEN =                               // float[n*2]
+            ACAMERA_TONEMAP_START + 1,
+    /**
+     * <p>Tonemapping / contrast / gamma curve for the red
+     * channel, to use when ACAMERA_TONEMAP_MODE is
+     * CONTRAST_CURVE.</p>
+     *
+     * @see ACAMERA_TONEMAP_MODE
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul>
+     *
+     * <p>Each channel's curve is defined by an array of control points:</p>
+     * <pre><code>ACAMERA_TONEMAP_CURVE_RED =
+     *   [ P0in, P0out, P1in, P1out, P2in, P2out, P3in, P3out, ..., PNin, PNout ]
+     * 2 &lt;= N &lt;= ACAMERA_TONEMAP_MAX_CURVE_POINTS</code></pre>
+     * <p>These are sorted in order of increasing <code>Pin</code>; it is
+     * required that input values 0.0 and 1.0 are included in the list to
+     * define a complete mapping. For input values between control points,
+     * the camera device must linearly interpolate between the control
+     * points.</p>
+     * <p>Each curve can have an independent number of points, and the number
+     * of points can be less than max (that is, the request doesn't have to
+     * always provide a curve with number of points equivalent to
+     * ACAMERA_TONEMAP_MAX_CURVE_POINTS).</p>
+     * <p>A few examples, and their corresponding graphical mappings; these
+     * only specify the red channel and the precision is limited to 4
+     * digits, for conciseness.</p>
+     * <p>Linear mapping:</p>
+     * <pre><code>ACAMERA_TONEMAP_CURVE_RED = [ 0, 0, 1.0, 1.0 ]
+     * </code></pre>
+     * <p><img alt="Linear mapping curve" src="../images/camera2/metadata/android.tonemap.curveRed/linear_tonemap.png" /></p>
+     * <p>Invert mapping:</p>
+     * <pre><code>ACAMERA_TONEMAP_CURVE_RED = [ 0, 1.0, 1.0, 0 ]
+     * </code></pre>
+     * <p><img alt="Inverting mapping curve" src="../images/camera2/metadata/android.tonemap.curveRed/inverse_tonemap.png" /></p>
+     * <p>Gamma 1/2.2 mapping, with 16 control points:</p>
+     * <pre><code>ACAMERA_TONEMAP_CURVE_RED = [
+     *   0.0000, 0.0000, 0.0667, 0.2920, 0.1333, 0.4002, 0.2000, 0.4812,
+     *   0.2667, 0.5484, 0.3333, 0.6069, 0.4000, 0.6594, 0.4667, 0.7072,
+     *   0.5333, 0.7515, 0.6000, 0.7928, 0.6667, 0.8317, 0.7333, 0.8685,
+     *   0.8000, 0.9035, 0.8667, 0.9370, 0.9333, 0.9691, 1.0000, 1.0000 ]
+     * </code></pre>
+     * <p><img alt="Gamma = 1/2.2 tonemapping curve" src="../images/camera2/metadata/android.tonemap.curveRed/gamma_tonemap.png" /></p>
+     * <p>Standard sRGB gamma mapping, per IEC 61966-2-1:1999, with 16 control points:</p>
+     * <pre><code>ACAMERA_TONEMAP_CURVE_RED = [
+     *   0.0000, 0.0000, 0.0667, 0.2864, 0.1333, 0.4007, 0.2000, 0.4845,
+     *   0.2667, 0.5532, 0.3333, 0.6125, 0.4000, 0.6652, 0.4667, 0.7130,
+     *   0.5333, 0.7569, 0.6000, 0.7977, 0.6667, 0.8360, 0.7333, 0.8721,
+     *   0.8000, 0.9063, 0.8667, 0.9389, 0.9333, 0.9701, 1.0000, 1.0000 ]
+     * </code></pre>
+     * <p><img alt="sRGB tonemapping curve" src="../images/camera2/metadata/android.tonemap.curveRed/srgb_tonemap.png" /></p>
+     *
+     * @see ACAMERA_TONEMAP_CURVE_RED
+     * @see ACAMERA_TONEMAP_MAX_CURVE_POINTS
+     */
+    ACAMERA_TONEMAP_CURVE_RED =                                 // float[n*2]
+            ACAMERA_TONEMAP_START + 2,
+    /**
+     * <p>High-level global contrast/gamma/tonemapping control.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul>
+     *
+     * <p>When switching to an application-defined contrast curve by setting
+     * ACAMERA_TONEMAP_MODE to CONTRAST_CURVE, the curve is defined
+     * per-channel with a set of <code>(in, out)</code> points that specify the
+     * mapping from input high-bit-depth pixel value to the output
+     * low-bit-depth value.  Since the actual pixel ranges of both input
+     * and output may change depending on the camera pipeline, the values
+     * are specified by normalized floating-point numbers.</p>
+     * <p>More-complex color mapping operations such as 3D color look-up
+     * tables, selective chroma enhancement, or other non-linear color
+     * transforms will be disabled when ACAMERA_TONEMAP_MODE is
+     * CONTRAST_CURVE.</p>
+     * <p>When using either FAST or HIGH_QUALITY, the camera device will
+     * emit its own tonemap curve in android.tonemap.curve.
+     * These values are always available, and as close as possible to the
+     * actually used nonlinear/nonglobal transforms.</p>
+     * <p>If a request is sent with CONTRAST_CURVE with the camera device's
+     * provided curve in FAST or HIGH_QUALITY, the image's tonemap will be
+     * roughly the same.</p>
+     *
+     * @see ACAMERA_TONEMAP_MODE
+     */
+    ACAMERA_TONEMAP_MODE =                                      // byte (enum)
+            ACAMERA_TONEMAP_START + 3,
+    /**
+     * <p>Maximum number of supported points in the
+     * tonemap curve that can be used for android.tonemap.curve.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>If the actual number of points provided by the application (in ACAMERA_TONEMAPCURVE_*) is
+     * less than this maximum, the camera device will resample the curve to its internal
+     * representation, using linear interpolation.</p>
+     * <p>The output curves in the result metadata may have a different number
+     * of points than the input curves, and will represent the actual
+     * hardware curves used as closely as possible when linearly interpolated.</p>
+     */
+    ACAMERA_TONEMAP_MAX_CURVE_POINTS =                          // int32
+            ACAMERA_TONEMAP_START + 4,
+    /**
+     * <p>List of tonemapping modes for ACAMERA_TONEMAP_MODE that are supported by this camera
+     * device.</p>
+     *
+     * @see ACAMERA_TONEMAP_MODE
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>Camera devices that support the MANUAL_POST_PROCESSING capability will always contain
+     * at least one of below mode combinations:</p>
+     * <ul>
+     * <li>CONTRAST_CURVE, FAST and HIGH_QUALITY</li>
+     * <li>GAMMA_VALUE, PRESET_CURVE, FAST and HIGH_QUALITY</li>
+     * </ul>
+     * <p>This includes all FULL level devices.</p>
+     */
+    ACAMERA_TONEMAP_AVAILABLE_TONE_MAP_MODES =                  // byte[n]
+            ACAMERA_TONEMAP_START + 5,
+    /**
+     * <p>Tonemapping curve to use when ACAMERA_TONEMAP_MODE is
+     * GAMMA_VALUE</p>
+     *
+     * @see ACAMERA_TONEMAP_MODE
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul>
+     *
+     * <p>The tonemap curve will be defined the following formula:
+     * * OUT = pow(IN, 1.0 / gamma)
+     * where IN and OUT is the input pixel value scaled to range [0.0, 1.0],
+     * pow is the power function and gamma is the gamma value specified by this
+     * key.</p>
+     * <p>The same curve will be applied to all color channels. The camera device
+     * may clip the input gamma value to its supported range. The actual applied
+     * value will be returned in capture result.</p>
+     * <p>The valid range of gamma value varies on different devices, but values
+     * within [1.0, 5.0] are guaranteed not to be clipped.</p>
+     */
+    ACAMERA_TONEMAP_GAMMA =                                     // float
+            ACAMERA_TONEMAP_START + 6,
+    /**
+     * <p>Tonemapping curve to use when ACAMERA_TONEMAP_MODE is
+     * PRESET_CURVE</p>
+     *
+     * @see ACAMERA_TONEMAP_MODE
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul>
+     *
+     * <p>The tonemap curve will be defined by specified standard.</p>
+     * <p>sRGB (approximated by 16 control points):</p>
+     * <p><img alt="sRGB tonemapping curve" src="../images/camera2/metadata/android.tonemap.curveRed/srgb_tonemap.png" /></p>
+     * <p>Rec. 709 (approximated by 16 control points):</p>
+     * <p><img alt="Rec. 709 tonemapping curve" src="../images/camera2/metadata/android.tonemap.curveRed/rec709_tonemap.png" /></p>
+     * <p>Note that above figures show a 16 control points approximation of preset
+     * curves. Camera devices may apply a different approximation to the curve.</p>
+     */
+    ACAMERA_TONEMAP_PRESET_CURVE =                              // byte (enum)
+            ACAMERA_TONEMAP_START + 7,
+    ACAMERA_TONEMAP_END,
+
+    /**
+     * <p>Generally classifies the overall set of the camera device functionality.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>The supported hardware level is a high-level description of the camera device's
+     * capabilities, summarizing several capabilities into one field.  Each level adds additional
+     * features to the previous one, and is always a strict superset of the previous level.
+     * The ordering is <code>LEGACY &lt; LIMITED &lt; FULL &lt; LEVEL_3</code>.</p>
+     * <p>Starting from <code>LEVEL_3</code>, the level enumerations are guaranteed to be in increasing
+     * numerical value as well. To check if a given device is at least at a given hardware level,
+     * the following code snippet can be used:</p>
+     * <pre><code>// Returns true if the device supports the required hardware level, or better.
+     * boolean isHardwareLevelSupported(CameraCharacteristics c, int requiredLevel) {
+     *     int deviceLevel = c.get(CameraCharacteristics.INFO_SUPPORTED_HARDWARE_LEVEL);
+     *     if (deviceLevel == CameraCharacteristics.INFO_SUPPORTED_HARDWARE_LEVEL_LEGACY) {
+     *         return requiredLevel == deviceLevel;
+     *     }
+     *     // deviceLevel is not LEGACY, can use numerical sort
+     *     return requiredLevel &lt;= deviceLevel;
+     * }
+     * </code></pre>
+     * <p>At a high level, the levels are:</p>
+     * <ul>
+     * <li><code>LEGACY</code> devices operate in a backwards-compatibility mode for older
+     *   Android devices, and have very limited capabilities.</li>
+     * <li><code>LIMITED</code> devices represent the
+     *   baseline feature set, and may also include additional capabilities that are
+     *   subsets of <code>FULL</code>.</li>
+     * <li><code>FULL</code> devices additionally support per-frame manual control of sensor, flash, lens and
+     *   post-processing settings, and image capture at a high rate.</li>
+     * <li><code>LEVEL_3</code> devices additionally support YUV reprocessing and RAW image capture, along
+     *   with additional output stream configurations.</li>
+     * </ul>
+     * <p>See the individual level enums for full descriptions of the supported capabilities.  The
+     * ACAMERA_REQUEST_AVAILABLE_CAPABILITIES entry describes the device's capabilities at a
+     * finer-grain level, if needed. In addition, many controls have their available settings or
+     * ranges defined in individual metadata tag entries in this document.</p>
+     * <p>Some features are not part of any particular hardware level or capability and must be
+     * queried separately. These include:</p>
+     * <ul>
+     * <li>Calibrated timestamps (ACAMERA_SENSOR_INFO_TIMESTAMP_SOURCE <code>==</code> REALTIME)</li>
+     * <li>Precision lens control (ACAMERA_LENS_INFO_FOCUS_DISTANCE_CALIBRATION <code>==</code> CALIBRATED)</li>
+     * <li>Face detection (ACAMERA_STATISTICS_INFO_AVAILABLE_FACE_DETECT_MODES)</li>
+     * <li>Optical or electrical image stabilization
+     *   (ACAMERA_LENS_INFO_AVAILABLE_OPTICAL_STABILIZATION,
+     *    ACAMERA_CONTROL_AVAILABLE_VIDEO_STABILIZATION_MODES)</li>
+     * </ul>
+     *
+     * @see ACAMERA_CONTROL_AVAILABLE_VIDEO_STABILIZATION_MODES
+     * @see ACAMERA_LENS_INFO_AVAILABLE_OPTICAL_STABILIZATION
+     * @see ACAMERA_LENS_INFO_FOCUS_DISTANCE_CALIBRATION
+     * @see ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
+     * @see ACAMERA_SENSOR_INFO_TIMESTAMP_SOURCE
+     * @see ACAMERA_STATISTICS_INFO_AVAILABLE_FACE_DETECT_MODES
+     */
+    ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL =                     // byte (enum)
+            ACAMERA_INFO_START,
+    ACAMERA_INFO_END,
+
+    /**
+     * <p>Whether black-level compensation is locked
+     * to its current values, or is free to vary.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul>
+     *
+     * <p>Whether the black level offset was locked for this frame.  Should be
+     * ON if ACAMERA_BLACK_LEVEL_LOCK was ON in the capture request, unless
+     * a change in other capture settings forced the camera device to
+     * perform a black level reset.</p>
+     *
+     * @see ACAMERA_BLACK_LEVEL_LOCK
+     */
+    ACAMERA_BLACK_LEVEL_LOCK =                                  // byte (enum)
+            ACAMERA_BLACK_LEVEL_START,
+    ACAMERA_BLACK_LEVEL_END,
+
+    /**
+     * <p>The frame number corresponding to the last request
+     * with which the output result (metadata + buffers) has been fully
+     * synchronized.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     * </ul>
+     *
+     * <p>When a request is submitted to the camera device, there is usually a
+     * delay of several frames before the controls get applied. A camera
+     * device may either choose to account for this delay by implementing a
+     * pipeline and carefully submit well-timed atomic control updates, or
+     * it may start streaming control changes that span over several frame
+     * boundaries.</p>
+     * <p>In the latter case, whenever a request's settings change relative to
+     * the previous submitted request, the full set of changes may take
+     * multiple frame durations to fully take effect. Some settings may
+     * take effect sooner (in less frame durations) than others.</p>
+     * <p>While a set of control changes are being propagated, this value
+     * will be CONVERGING.</p>
+     * <p>Once it is fully known that a set of control changes have been
+     * finished propagating, and the resulting updated control settings
+     * have been read back by the camera device, this value will be set
+     * to a non-negative frame number (corresponding to the request to
+     * which the results have synchronized to).</p>
+     * <p>Older camera device implementations may not have a way to detect
+     * when all camera controls have been applied, and will always set this
+     * value to UNKNOWN.</p>
+     * <p>FULL capability devices will always have this value set to the
+     * frame number of the request corresponding to this result.</p>
+     * <p><em>Further details</em>:</p>
+     * <ul>
+     * <li>Whenever a request differs from the last request, any future
+     * results not yet returned may have this value set to CONVERGING (this
+     * could include any in-progress captures not yet returned by the camera
+     * device, for more details see pipeline considerations below).</li>
+     * <li>Submitting a series of multiple requests that differ from the
+     * previous request (e.g. r1, r2, r3 s.t. r1 != r2 != r3)
+     * moves the new synchronization frame to the last non-repeating
+     * request (using the smallest frame number from the contiguous list of
+     * repeating requests).</li>
+     * <li>Submitting the same request repeatedly will not change this value
+     * to CONVERGING, if it was already a non-negative value.</li>
+     * <li>When this value changes to non-negative, that means that all of the
+     * metadata controls from the request have been applied, all of the
+     * metadata controls from the camera device have been read to the
+     * updated values (into the result), and all of the graphics buffers
+     * corresponding to this result are also synchronized to the request.</li>
+     * </ul>
+     * <p><em>Pipeline considerations</em>:</p>
+     * <p>Submitting a request with updated controls relative to the previously
+     * submitted requests may also invalidate the synchronization state
+     * of all the results corresponding to currently in-flight requests.</p>
+     * <p>In other words, results for this current request and up to
+     * ACAMERA_REQUEST_PIPELINE_MAX_DEPTH prior requests may have their
+     * ACAMERA_SYNC_FRAME_NUMBER change to CONVERGING.</p>
+     *
+     * @see ACAMERA_REQUEST_PIPELINE_MAX_DEPTH
+     * @see ACAMERA_SYNC_FRAME_NUMBER
+     */
+    ACAMERA_SYNC_FRAME_NUMBER =                                 // int64 (enum)
+            ACAMERA_SYNC_START,
+    /**
+     * <p>The maximum number of frames that can occur after a request
+     * (different than the previous) has been submitted, and before the
+     * result's state becomes synchronized.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>This defines the maximum distance (in number of metadata results),
+     * between the frame number of the request that has new controls to apply
+     * and the frame number of the result that has all the controls applied.</p>
+     * <p>In other words this acts as an upper boundary for how many frames
+     * must occur before the camera device knows for a fact that the new
+     * submitted camera settings have been applied in outgoing frames.</p>
+     */
+    ACAMERA_SYNC_MAX_LATENCY =                                  // int32 (enum)
+            ACAMERA_SYNC_START + 1,
+    ACAMERA_SYNC_END,
+
+    /**
+     * <p>The available depth dataspace stream
+     * configurations that this camera device supports
+     * (i.e. format, width, height, output/input stream).</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>These are output stream configurations for use with
+     * dataSpace HAL_DATASPACE_DEPTH. The configurations are
+     * listed as <code>(format, width, height, input?)</code> tuples.</p>
+     * <p>Only devices that support depth output for at least
+     * the HAL_PIXEL_FORMAT_Y16 dense depth map may include
+     * this entry.</p>
+     * <p>A device that also supports the HAL_PIXEL_FORMAT_BLOB
+     * sparse depth point cloud must report a single entry for
+     * the format in this list as <code>(HAL_PIXEL_FORMAT_BLOB,
+     * android.depth.maxDepthSamples, 1, OUTPUT)</code> in addition to
+     * the entries for HAL_PIXEL_FORMAT_Y16.</p>
+     */
+    ACAMERA_DEPTH_AVAILABLE_DEPTH_STREAM_CONFIGURATIONS =       // int32[n*4] (enum)
+            ACAMERA_DEPTH_START + 1,
+    /**
+     * <p>This lists the minimum frame duration for each
+     * format/size combination for depth output formats.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>This should correspond to the frame duration when only that
+     * stream is active, with all processing (typically in android.*.mode)
+     * set to either OFF or FAST.</p>
+     * <p>When multiple streams are used in a request, the minimum frame
+     * duration will be max(individual stream min durations).</p>
+     * <p>The minimum frame duration of a stream (of a particular format, size)
+     * is the same regardless of whether the stream is input or output.</p>
+     * <p>See ACAMERA_SENSOR_FRAME_DURATION and
+     * ACAMERA_SCALER_AVAILABLE_STALL_DURATIONS for more details about
+     * calculating the max frame rate.</p>
+     *
+     * @see ACAMERA_SCALER_AVAILABLE_STALL_DURATIONS
+     * @see ACAMERA_SENSOR_FRAME_DURATION
+     */
+    ACAMERA_DEPTH_AVAILABLE_DEPTH_MIN_FRAME_DURATIONS =         // int64[4*n]
+            ACAMERA_DEPTH_START + 2,
+    /**
+     * <p>This lists the maximum stall duration for each
+     * output format/size combination for depth streams.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>A stall duration is how much extra time would get added
+     * to the normal minimum frame duration for a repeating request
+     * that has streams with non-zero stall.</p>
+     * <p>This functions similarly to
+     * ACAMERA_SCALER_AVAILABLE_STALL_DURATIONS for depth
+     * streams.</p>
+     * <p>All depth output stream formats may have a nonzero stall
+     * duration.</p>
+     *
+     * @see ACAMERA_SCALER_AVAILABLE_STALL_DURATIONS
+     */
+    ACAMERA_DEPTH_AVAILABLE_DEPTH_STALL_DURATIONS =             // int64[4*n]
+            ACAMERA_DEPTH_START + 3,
+    /**
+     * <p>Indicates whether a capture request may target both a
+     * DEPTH16 / DEPTH_POINT_CLOUD output, and normal color outputs (such as
+     * YUV_420_888, JPEG, or RAW) simultaneously.</p>
+     *
+     * <p>This tag may appear in:</p>
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul>
+     *
+     * <p>If TRUE, including both depth and color outputs in a single
+     * capture request is not supported. An application must interleave color
+     * and depth requests.  If FALSE, a single request can target both types
+     * of output.</p>
+     * <p>Typically, this restriction exists on camera devices that
+     * need to emit a specific pattern or wavelength of light to
+     * measure depth values, which causes the color image to be
+     * corrupted during depth measurement.</p>
+     */
+    ACAMERA_DEPTH_DEPTH_IS_EXCLUSIVE =                          // byte (enum)
+            ACAMERA_DEPTH_START + 4,
+    ACAMERA_DEPTH_END,
+
+} acamera_metadata_tag_t;
+
+/**
+ * Enumeration definitions for the various entries that need them
+ */
+
+// ACAMERA_COLOR_CORRECTION_MODE
+typedef enum acamera_metadata_enum_acamera_color_correction_mode {
+    /**
+     * <p>Use the ACAMERA_COLOR_CORRECTION_TRANSFORM matrix
+     * and ACAMERA_COLOR_CORRECTION_GAINS to do color conversion.</p>
+     * <p>All advanced white balance adjustments (not specified
+     * by our white balance pipeline) must be disabled.</p>
+     * <p>If AWB is enabled with <code>ACAMERA_CONTROL_AWB_MODE != OFF</code>, then
+     * TRANSFORM_MATRIX is ignored. The camera device will override
+     * this value to either FAST or HIGH_QUALITY.</p>
+     *
+     * @see ACAMERA_COLOR_CORRECTION_GAINS
+     * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
+     * @see ACAMERA_CONTROL_AWB_MODE
+     */
+    ACAMERA_COLOR_CORRECTION_MODE_TRANSFORM_MATRIX                   = 0,
+
+    /**
+     * <p>Color correction processing must not slow down
+     * capture rate relative to sensor raw output.</p>
+     * <p>Advanced white balance adjustments above and beyond
+     * the specified white balance pipeline may be applied.</p>
+     * <p>If AWB is enabled with <code>ACAMERA_CONTROL_AWB_MODE != OFF</code>, then
+     * the camera device uses the last frame's AWB values
+     * (or defaults if AWB has never been run).</p>
+     *
+     * @see ACAMERA_CONTROL_AWB_MODE
+     */
+    ACAMERA_COLOR_CORRECTION_MODE_FAST                               = 1,
+
+    /**
+     * <p>Color correction processing operates at improved
+     * quality but the capture rate might be reduced (relative to sensor
+     * raw output rate)</p>
+     * <p>Advanced white balance adjustments above and beyond
+     * the specified white balance pipeline may be applied.</p>
+     * <p>If AWB is enabled with <code>ACAMERA_CONTROL_AWB_MODE != OFF</code>, then
+     * the camera device uses the last frame's AWB values
+     * (or defaults if AWB has never been run).</p>
+     *
+     * @see ACAMERA_CONTROL_AWB_MODE
+     */
+    ACAMERA_COLOR_CORRECTION_MODE_HIGH_QUALITY                       = 2,
+
+} acamera_metadata_enum_android_color_correction_mode_t;
+
+// ACAMERA_COLOR_CORRECTION_ABERRATION_MODE
+typedef enum acamera_metadata_enum_acamera_color_correction_aberration_mode {
+    /**
+     * <p>No aberration correction is applied.</p>
+     */
+    ACAMERA_COLOR_CORRECTION_ABERRATION_MODE_OFF                     = 0,
+
+    /**
+     * <p>Aberration correction will not slow down capture rate
+     * relative to sensor raw output.</p>
+     */
+    ACAMERA_COLOR_CORRECTION_ABERRATION_MODE_FAST                    = 1,
+
+    /**
+     * <p>Aberration correction operates at improved quality but the capture rate might be
+     * reduced (relative to sensor raw output rate)</p>
+     */
+    ACAMERA_COLOR_CORRECTION_ABERRATION_MODE_HIGH_QUALITY            = 2,
+
+} acamera_metadata_enum_android_color_correction_aberration_mode_t;
+
+
+// ACAMERA_CONTROL_AE_ANTIBANDING_MODE
+typedef enum acamera_metadata_enum_acamera_control_ae_antibanding_mode {
+    /**
+     * <p>The camera device will not adjust exposure duration to
+     * avoid banding problems.</p>
+     */
+    ACAMERA_CONTROL_AE_ANTIBANDING_MODE_OFF                          = 0,
+
+    /**
+     * <p>The camera device will adjust exposure duration to
+     * avoid banding problems with 50Hz illumination sources.</p>
+     */
+    ACAMERA_CONTROL_AE_ANTIBANDING_MODE_50HZ                         = 1,
+
+    /**
+     * <p>The camera device will adjust exposure duration to
+     * avoid banding problems with 60Hz illumination
+     * sources.</p>
+     */
+    ACAMERA_CONTROL_AE_ANTIBANDING_MODE_60HZ                         = 2,
+
+    /**
+     * <p>The camera device will automatically adapt its
+     * antibanding routine to the current illumination
+     * condition. This is the default mode if AUTO is
+     * available on given camera device.</p>
+     */
+    ACAMERA_CONTROL_AE_ANTIBANDING_MODE_AUTO                         = 3,
+
+} acamera_metadata_enum_android_control_ae_antibanding_mode_t;
+
+// ACAMERA_CONTROL_AE_LOCK
+typedef enum acamera_metadata_enum_acamera_control_ae_lock {
+    /**
+     * <p>Auto-exposure lock is disabled; the AE algorithm
+     * is free to update its parameters.</p>
+     */
+    ACAMERA_CONTROL_AE_LOCK_OFF                                      = 0,
+
+    /**
+     * <p>Auto-exposure lock is enabled; the AE algorithm
+     * must not update the exposure and sensitivity parameters
+     * while the lock is active.</p>
+     * <p>ACAMERA_CONTROL_AE_EXPOSURE_COMPENSATION setting changes
+     * will still take effect while auto-exposure is locked.</p>
+     * <p>Some rare LEGACY devices may not support
+     * this, in which case the value will always be overridden to OFF.</p>
+     *
+     * @see ACAMERA_CONTROL_AE_EXPOSURE_COMPENSATION
+     */
+    ACAMERA_CONTROL_AE_LOCK_ON                                       = 1,
+
+} acamera_metadata_enum_android_control_ae_lock_t;
+
+// ACAMERA_CONTROL_AE_MODE
+typedef enum acamera_metadata_enum_acamera_control_ae_mode {
+    /**
+     * <p>The camera device's autoexposure routine is disabled.</p>
+     * <p>The application-selected ACAMERA_SENSOR_EXPOSURE_TIME,
+     * ACAMERA_SENSOR_SENSITIVITY and
+     * ACAMERA_SENSOR_FRAME_DURATION are used by the camera
+     * device, along with ACAMERA_FLASH_* fields, if there's
+     * a flash unit for this camera device.</p>
+     * <p>Note that auto-white balance (AWB) and auto-focus (AF)
+     * behavior is device dependent when AE is in OFF mode.
+     * To have consistent behavior across different devices,
+     * it is recommended to either set AWB and AF to OFF mode
+     * or lock AWB and AF before setting AE to OFF.
+     * See ACAMERA_CONTROL_AWB_MODE, ACAMERA_CONTROL_AF_MODE,
+     * ACAMERA_CONTROL_AWB_LOCK, and ACAMERA_CONTROL_AF_TRIGGER
+     * for more details.</p>
+     * <p>LEGACY devices do not support the OFF mode and will
+     * override attempts to use this value to ON.</p>
+     *
+     * @see ACAMERA_CONTROL_AF_MODE
+     * @see ACAMERA_CONTROL_AF_TRIGGER
+     * @see ACAMERA_CONTROL_AWB_LOCK
+     * @see ACAMERA_CONTROL_AWB_MODE
+     * @see ACAMERA_SENSOR_EXPOSURE_TIME
+     * @see ACAMERA_SENSOR_FRAME_DURATION
+     * @see ACAMERA_SENSOR_SENSITIVITY
+     */
+    ACAMERA_CONTROL_AE_MODE_OFF                                      = 0,
+
+    /**
+     * <p>The camera device's autoexposure routine is active,
+     * with no flash control.</p>
+     * <p>The application's values for
+     * ACAMERA_SENSOR_EXPOSURE_TIME,
+     * ACAMERA_SENSOR_SENSITIVITY, and
+     * ACAMERA_SENSOR_FRAME_DURATION are ignored. The
+     * application has control over the various
+     * ACAMERA_FLASH_* fields.</p>
+     *
+     * @see ACAMERA_SENSOR_EXPOSURE_TIME
+     * @see ACAMERA_SENSOR_FRAME_DURATION
+     * @see ACAMERA_SENSOR_SENSITIVITY
+     */
+    ACAMERA_CONTROL_AE_MODE_ON                                       = 1,
+
+    /**
+     * <p>Like ON, except that the camera device also controls
+     * the camera's flash unit, firing it in low-light
+     * conditions.</p>
+     * <p>The flash may be fired during a precapture sequence
+     * (triggered by ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER) and
+     * may be fired for captures for which the
+     * ACAMERA_CONTROL_CAPTURE_INTENT field is set to
+     * STILL_CAPTURE</p>
+     *
+     * @see ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER
+     * @see ACAMERA_CONTROL_CAPTURE_INTENT
+     */
+    ACAMERA_CONTROL_AE_MODE_ON_AUTO_FLASH                            = 2,
+
+    /**
+     * <p>Like ON, except that the camera device also controls
+     * the camera's flash unit, always firing it for still
+     * captures.</p>
+     * <p>The flash may be fired during a precapture sequence
+     * (triggered by ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER) and
+     * will always be fired for captures for which the
+     * ACAMERA_CONTROL_CAPTURE_INTENT field is set to
+     * STILL_CAPTURE</p>
+     *
+     * @see ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER
+     * @see ACAMERA_CONTROL_CAPTURE_INTENT
+     */
+    ACAMERA_CONTROL_AE_MODE_ON_ALWAYS_FLASH                          = 3,
+
+    /**
+     * <p>Like ON_AUTO_FLASH, but with automatic red eye
+     * reduction.</p>
+     * <p>If deemed necessary by the camera device, a red eye
+     * reduction flash will fire during the precapture
+     * sequence.</p>
+     */
+    ACAMERA_CONTROL_AE_MODE_ON_AUTO_FLASH_REDEYE                     = 4,
+
+} acamera_metadata_enum_android_control_ae_mode_t;
+
+// ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER
+typedef enum acamera_metadata_enum_acamera_control_ae_precapture_trigger {
+    /**
+     * <p>The trigger is idle.</p>
+     */
+    ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER_IDLE                       = 0,
+
+    /**
+     * <p>The precapture metering sequence will be started
+     * by the camera device.</p>
+     * <p>The exact effect of the precapture trigger depends on
+     * the current AE mode and state.</p>
+     */
+    ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER_START                      = 1,
+
+    /**
+     * <p>The camera device will cancel any currently active or completed
+     * precapture metering sequence, the auto-exposure routine will return to its
+     * initial state.</p>
+     */
+    ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER_CANCEL                     = 2,
+
+} acamera_metadata_enum_android_control_ae_precapture_trigger_t;
+
+// ACAMERA_CONTROL_AF_MODE
+typedef enum acamera_metadata_enum_acamera_control_af_mode {
+    /**
+     * <p>The auto-focus routine does not control the lens;
+     * ACAMERA_LENS_FOCUS_DISTANCE is controlled by the
+     * application.</p>
+     *
+     * @see ACAMERA_LENS_FOCUS_DISTANCE
+     */
+    ACAMERA_CONTROL_AF_MODE_OFF                                      = 0,
+
+    /**
+     * <p>Basic automatic focus mode.</p>
+     * <p>In this mode, the lens does not move unless
+     * the autofocus trigger action is called. When that trigger
+     * is activated, AF will transition to ACTIVE_SCAN, then to
+     * the outcome of the scan (FOCUSED or NOT_FOCUSED).</p>
+     * <p>Always supported if lens is not fixed focus.</p>
+     * <p>Use ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE to determine if lens
+     * is fixed-focus.</p>
+     * <p>Triggering AF_CANCEL resets the lens position to default,
+     * and sets the AF state to INACTIVE.</p>
+     *
+     * @see ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE
+     */
+    ACAMERA_CONTROL_AF_MODE_AUTO                                     = 1,
+
+    /**
+     * <p>Close-up focusing mode.</p>
+     * <p>In this mode, the lens does not move unless the
+     * autofocus trigger action is called. When that trigger is
+     * activated, AF will transition to ACTIVE_SCAN, then to
+     * the outcome of the scan (FOCUSED or NOT_FOCUSED). This
+     * mode is optimized for focusing on objects very close to
+     * the camera.</p>
+     * <p>When that trigger is activated, AF will transition to
+     * ACTIVE_SCAN, then to the outcome of the scan (FOCUSED or
+     * NOT_FOCUSED). Triggering cancel AF resets the lens
+     * position to default, and sets the AF state to
+     * INACTIVE.</p>
+     */
+    ACAMERA_CONTROL_AF_MODE_MACRO                                    = 2,
+
+    /**
+     * <p>In this mode, the AF algorithm modifies the lens
+     * position continually to attempt to provide a
+     * constantly-in-focus image stream.</p>
+     * <p>The focusing behavior should be suitable for good quality
+     * video recording; typically this means slower focus
+     * movement and no overshoots. When the AF trigger is not
+     * involved, the AF algorithm should start in INACTIVE state,
+     * and then transition into PASSIVE_SCAN and PASSIVE_FOCUSED
+     * states as appropriate. When the AF trigger is activated,
+     * the algorithm should immediately transition into
+     * AF_FOCUSED or AF_NOT_FOCUSED as appropriate, and lock the
+     * lens position until a cancel AF trigger is received.</p>
+     * <p>Once cancel is received, the algorithm should transition
+     * back to INACTIVE and resume passive scan. Note that this
+     * behavior is not identical to CONTINUOUS_PICTURE, since an
+     * ongoing PASSIVE_SCAN must immediately be
+     * canceled.</p>
+     */
+    ACAMERA_CONTROL_AF_MODE_CONTINUOUS_VIDEO                         = 3,
+
+    /**
+     * <p>In this mode, the AF algorithm modifies the lens
+     * position continually to attempt to provide a
+     * constantly-in-focus image stream.</p>
+     * <p>The focusing behavior should be suitable for still image
+     * capture; typically this means focusing as fast as
+     * possible. When the AF trigger is not involved, the AF
+     * algorithm should start in INACTIVE state, and then
+     * transition into PASSIVE_SCAN and PASSIVE_FOCUSED states as
+     * appropriate as it attempts to maintain focus. When the AF
+     * trigger is activated, the algorithm should finish its
+     * PASSIVE_SCAN if active, and then transition into
+     * AF_FOCUSED or AF_NOT_FOCUSED as appropriate, and lock the
+     * lens position until a cancel AF trigger is received.</p>
+     * <p>When the AF cancel trigger is activated, the algorithm
+     * should transition back to INACTIVE and then act as if it
+     * has just been started.</p>
+     */
+    ACAMERA_CONTROL_AF_MODE_CONTINUOUS_PICTURE                       = 4,
+
+    /**
+     * <p>Extended depth of field (digital focus) mode.</p>
+     * <p>The camera device will produce images with an extended
+     * depth of field automatically; no special focusing
+     * operations need to be done before taking a picture.</p>
+     * <p>AF triggers are ignored, and the AF state will always be
+     * INACTIVE.</p>
+     */
+    ACAMERA_CONTROL_AF_MODE_EDOF                                     = 5,
+
+} acamera_metadata_enum_android_control_af_mode_t;
+
+// ACAMERA_CONTROL_AF_TRIGGER
+typedef enum acamera_metadata_enum_acamera_control_af_trigger {
+    /**
+     * <p>The trigger is idle.</p>
+     */
+    ACAMERA_CONTROL_AF_TRIGGER_IDLE                                  = 0,
+
+    /**
+     * <p>Autofocus will trigger now.</p>
+     */
+    ACAMERA_CONTROL_AF_TRIGGER_START                                 = 1,
+
+    /**
+     * <p>Autofocus will return to its initial
+     * state, and cancel any currently active trigger.</p>
+     */
+    ACAMERA_CONTROL_AF_TRIGGER_CANCEL                                = 2,
+
+} acamera_metadata_enum_android_control_af_trigger_t;
+
+// ACAMERA_CONTROL_AWB_LOCK
+typedef enum acamera_metadata_enum_acamera_control_awb_lock {
+    /**
+     * <p>Auto-white balance lock is disabled; the AWB
+     * algorithm is free to update its parameters if in AUTO
+     * mode.</p>
+     */
+    ACAMERA_CONTROL_AWB_LOCK_OFF                                     = 0,
+
+    /**
+     * <p>Auto-white balance lock is enabled; the AWB
+     * algorithm will not update its parameters while the lock
+     * is active.</p>
+     */
+    ACAMERA_CONTROL_AWB_LOCK_ON                                      = 1,
+
+} acamera_metadata_enum_android_control_awb_lock_t;
+
+// ACAMERA_CONTROL_AWB_MODE
+typedef enum acamera_metadata_enum_acamera_control_awb_mode {
+    /**
+     * <p>The camera device's auto-white balance routine is disabled.</p>
+     * <p>The application-selected color transform matrix
+     * (ACAMERA_COLOR_CORRECTION_TRANSFORM) and gains
+     * (ACAMERA_COLOR_CORRECTION_GAINS) are used by the camera
+     * device for manual white balance control.</p>
+     *
+     * @see ACAMERA_COLOR_CORRECTION_GAINS
+     * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
+     */
+    ACAMERA_CONTROL_AWB_MODE_OFF                                     = 0,
+
+    /**
+     * <p>The camera device's auto-white balance routine is active.</p>
+     * <p>The application's values for ACAMERA_COLOR_CORRECTION_TRANSFORM
+     * and ACAMERA_COLOR_CORRECTION_GAINS are ignored.
+     * For devices that support the MANUAL_POST_PROCESSING capability, the
+     * values used by the camera device for the transform and gains
+     * will be available in the capture result for this request.</p>
+     *
+     * @see ACAMERA_COLOR_CORRECTION_GAINS
+     * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
+     */
+    ACAMERA_CONTROL_AWB_MODE_AUTO                                    = 1,
+
+    /**
+     * <p>The camera device's auto-white balance routine is disabled;
+     * the camera device uses incandescent light as the assumed scene
+     * illumination for white balance.</p>
+     * <p>While the exact white balance transforms are up to the
+     * camera device, they will approximately match the CIE
+     * standard illuminant A.</p>
+     * <p>The application's values for ACAMERA_COLOR_CORRECTION_TRANSFORM
+     * and ACAMERA_COLOR_CORRECTION_GAINS are ignored.
+     * For devices that support the MANUAL_POST_PROCESSING capability, the
+     * values used by the camera device for the transform and gains
+     * will be available in the capture result for this request.</p>
+     *
+     * @see ACAMERA_COLOR_CORRECTION_GAINS
+     * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
+     */
+    ACAMERA_CONTROL_AWB_MODE_INCANDESCENT                            = 2,
+
+    /**
+     * <p>The camera device's auto-white balance routine is disabled;
+     * the camera device uses fluorescent light as the assumed scene
+     * illumination for white balance.</p>
+     * <p>While the exact white balance transforms are up to the
+     * camera device, they will approximately match the CIE
+     * standard illuminant F2.</p>
+     * <p>The application's values for ACAMERA_COLOR_CORRECTION_TRANSFORM
+     * and ACAMERA_COLOR_CORRECTION_GAINS are ignored.
+     * For devices that support the MANUAL_POST_PROCESSING capability, the
+     * values used by the camera device for the transform and gains
+     * will be available in the capture result for this request.</p>
+     *
+     * @see ACAMERA_COLOR_CORRECTION_GAINS
+     * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
+     */
+    ACAMERA_CONTROL_AWB_MODE_FLUORESCENT                             = 3,
+
+    /**
+     * <p>The camera device's auto-white balance routine is disabled;
+     * the camera device uses warm fluorescent light as the assumed scene
+     * illumination for white balance.</p>
+     * <p>While the exact white balance transforms are up to the
+     * camera device, they will approximately match the CIE
+     * standard illuminant F4.</p>
+     * <p>The application's values for ACAMERA_COLOR_CORRECTION_TRANSFORM
+     * and ACAMERA_COLOR_CORRECTION_GAINS are ignored.
+     * For devices that support the MANUAL_POST_PROCESSING capability, the
+     * values used by the camera device for the transform and gains
+     * will be available in the capture result for this request.</p>
+     *
+     * @see ACAMERA_COLOR_CORRECTION_GAINS
+     * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
+     */
+    ACAMERA_CONTROL_AWB_MODE_WARM_FLUORESCENT                        = 4,
+
+    /**
+     * <p>The camera device's auto-white balance routine is disabled;
+     * the camera device uses daylight light as the assumed scene
+     * illumination for white balance.</p>
+     * <p>While the exact white balance transforms are up to the
+     * camera device, they will approximately match the CIE
+     * standard illuminant D65.</p>
+     * <p>The application's values for ACAMERA_COLOR_CORRECTION_TRANSFORM
+     * and ACAMERA_COLOR_CORRECTION_GAINS are ignored.
+     * For devices that support the MANUAL_POST_PROCESSING capability, the
+     * values used by the camera device for the transform and gains
+     * will be available in the capture result for this request.</p>
+     *
+     * @see ACAMERA_COLOR_CORRECTION_GAINS
+     * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
+     */
+    ACAMERA_CONTROL_AWB_MODE_DAYLIGHT                                = 5,
+
+    /**
+     * <p>The camera device's auto-white balance routine is disabled;
+     * the camera device uses cloudy daylight light as the assumed scene
+     * illumination for white balance.</p>
+     * <p>The application's values for ACAMERA_COLOR_CORRECTION_TRANSFORM
+     * and ACAMERA_COLOR_CORRECTION_GAINS are ignored.
+     * For devices that support the MANUAL_POST_PROCESSING capability, the
+     * values used by the camera device for the transform and gains
+     * will be available in the capture result for this request.</p>
+     *
+     * @see ACAMERA_COLOR_CORRECTION_GAINS
+     * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
+     */
+    ACAMERA_CONTROL_AWB_MODE_CLOUDY_DAYLIGHT                         = 6,
+
+    /**
+     * <p>The camera device's auto-white balance routine is disabled;
+     * the camera device uses twilight light as the assumed scene
+     * illumination for white balance.</p>
+     * <p>The application's values for ACAMERA_COLOR_CORRECTION_TRANSFORM
+     * and ACAMERA_COLOR_CORRECTION_GAINS are ignored.
+     * For devices that support the MANUAL_POST_PROCESSING capability, the
+     * values used by the camera device for the transform and gains
+     * will be available in the capture result for this request.</p>
+     *
+     * @see ACAMERA_COLOR_CORRECTION_GAINS
+     * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
+     */
+    ACAMERA_CONTROL_AWB_MODE_TWILIGHT                                = 7,
+
+    /**
+     * <p>The camera device's auto-white balance routine is disabled;
+     * the camera device uses shade light as the assumed scene
+     * illumination for white balance.</p>
+     * <p>The application's values for ACAMERA_COLOR_CORRECTION_TRANSFORM
+     * and ACAMERA_COLOR_CORRECTION_GAINS are ignored.
+     * For devices that support the MANUAL_POST_PROCESSING capability, the
+     * values used by the camera device for the transform and gains
+     * will be available in the capture result for this request.</p>
+     *
+     * @see ACAMERA_COLOR_CORRECTION_GAINS
+     * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
+     */
+    ACAMERA_CONTROL_AWB_MODE_SHADE                                   = 8,
+
+} acamera_metadata_enum_android_control_awb_mode_t;
+
+// ACAMERA_CONTROL_CAPTURE_INTENT
+typedef enum acamera_metadata_enum_acamera_control_capture_intent {
+    /**
+     * <p>The goal of this request doesn't fall into the other
+     * categories. The camera device will default to preview-like
+     * behavior.</p>
+     */
+    ACAMERA_CONTROL_CAPTURE_INTENT_CUSTOM                            = 0,
+
+    /**
+     * <p>This request is for a preview-like use case.</p>
+     * <p>The precapture trigger may be used to start off a metering
+     * w/flash sequence.</p>
+     */
+    ACAMERA_CONTROL_CAPTURE_INTENT_PREVIEW                           = 1,
+
+    /**
+     * <p>This request is for a still capture-type
+     * use case.</p>
+     * <p>If the flash unit is under automatic control, it may fire as needed.</p>
+     */
+    ACAMERA_CONTROL_CAPTURE_INTENT_STILL_CAPTURE                     = 2,
+
+    /**
+     * <p>This request is for a video recording
+     * use case.</p>
+     */
+    ACAMERA_CONTROL_CAPTURE_INTENT_VIDEO_RECORD                      = 3,
+
+    /**
+     * <p>This request is for a video snapshot (still
+     * image while recording video) use case.</p>
+     * <p>The camera device should take the highest-quality image
+     * possible (given the other settings) without disrupting the
+     * frame rate of video recording.  </p>
+     */
+    ACAMERA_CONTROL_CAPTURE_INTENT_VIDEO_SNAPSHOT                    = 4,
+
+    /**
+     * <p>This request is for a ZSL usecase; the
+     * application will stream full-resolution images and
+     * reprocess one or several later for a final
+     * capture.</p>
+     */
+    ACAMERA_CONTROL_CAPTURE_INTENT_ZERO_SHUTTER_LAG                  = 5,
+
+    /**
+     * <p>This request is for manual capture use case where
+     * the applications want to directly control the capture parameters.</p>
+     * <p>For example, the application may wish to manually control
+     * ACAMERA_SENSOR_EXPOSURE_TIME, ACAMERA_SENSOR_SENSITIVITY, etc.</p>
+     *
+     * @see ACAMERA_SENSOR_EXPOSURE_TIME
+     * @see ACAMERA_SENSOR_SENSITIVITY
+     */
+    ACAMERA_CONTROL_CAPTURE_INTENT_MANUAL                            = 6,
+
+} acamera_metadata_enum_android_control_capture_intent_t;
+
+// ACAMERA_CONTROL_EFFECT_MODE
+typedef enum acamera_metadata_enum_acamera_control_effect_mode {
+    /**
+     * <p>No color effect will be applied.</p>
+     */
+    ACAMERA_CONTROL_EFFECT_MODE_OFF                                  = 0,
+
+    /**
+     * <p>A "monocolor" effect where the image is mapped into
+     * a single color.</p>
+     * <p>This will typically be grayscale.</p>
+     */
+    ACAMERA_CONTROL_EFFECT_MODE_MONO                                 = 1,
+
+    /**
+     * <p>A "photo-negative" effect where the image's colors
+     * are inverted.</p>
+     */
+    ACAMERA_CONTROL_EFFECT_MODE_NEGATIVE                             = 2,
+
+    /**
+     * <p>A "solarisation" effect (Sabattier effect) where the
+     * image is wholly or partially reversed in
+     * tone.</p>
+     */
+    ACAMERA_CONTROL_EFFECT_MODE_SOLARIZE                             = 3,
+
+    /**
+     * <p>A "sepia" effect where the image is mapped into warm
+     * gray, red, and brown tones.</p>
+     */
+    ACAMERA_CONTROL_EFFECT_MODE_SEPIA                                = 4,
+
+    /**
+     * <p>A "posterization" effect where the image uses
+     * discrete regions of tone rather than a continuous
+     * gradient of tones.</p>
+     */
+    ACAMERA_CONTROL_EFFECT_MODE_POSTERIZE                            = 5,
+
+    /**
+     * <p>A "whiteboard" effect where the image is typically displayed
+     * as regions of white, with black or grey details.</p>
+     */
+    ACAMERA_CONTROL_EFFECT_MODE_WHITEBOARD                           = 6,
+
+    /**
+     * <p>A "blackboard" effect where the image is typically displayed
+     * as regions of black, with white or grey details.</p>
+     */
+    ACAMERA_CONTROL_EFFECT_MODE_BLACKBOARD                           = 7,
+
+    /**
+     * <p>An "aqua" effect where a blue hue is added to the image.</p>
+     */
+    ACAMERA_CONTROL_EFFECT_MODE_AQUA                                 = 8,
+
+} acamera_metadata_enum_android_control_effect_mode_t;
+
+// ACAMERA_CONTROL_MODE
+typedef enum acamera_metadata_enum_acamera_control_mode {
+    /**
+     * <p>Full application control of pipeline.</p>
+     * <p>All control by the device's metering and focusing (3A)
+     * routines is disabled, and no other settings in
+     * ACAMERA_CONTROL_* have any effect, except that
+     * ACAMERA_CONTROL_CAPTURE_INTENT may be used by the camera
+     * device to select post-processing values for processing
+     * blocks that do not allow for manual control, or are not
+     * exposed by the camera API.</p>
+     * <p>However, the camera device's 3A routines may continue to
+     * collect statistics and update their internal state so that
+     * when control is switched to AUTO mode, good control values
+     * can be immediately applied.</p>
+     *
+     * @see ACAMERA_CONTROL_CAPTURE_INTENT
+     */
+    ACAMERA_CONTROL_MODE_OFF                                         = 0,
+
+    /**
+     * <p>Use settings for each individual 3A routine.</p>
+     * <p>Manual control of capture parameters is disabled. All
+     * controls in ACAMERA_CONTROL_* besides sceneMode take
+     * effect.</p>
+     */
+    ACAMERA_CONTROL_MODE_AUTO                                        = 1,
+
+    /**
+     * <p>Use a specific scene mode.</p>
+     * <p>Enabling this disables control.aeMode, control.awbMode and
+     * control.afMode controls; the camera device will ignore
+     * those settings while USE_SCENE_MODE is active (except for
+     * FACE_PRIORITY scene mode). Other control entries are still active.
+     * This setting can only be used if scene mode is supported (i.e.
+     * ACAMERA_CONTROL_AVAILABLE_SCENE_MODES
+     * contain some modes other than DISABLED).</p>
+     *
+     * @see ACAMERA_CONTROL_AVAILABLE_SCENE_MODES
+     */
+    ACAMERA_CONTROL_MODE_USE_SCENE_MODE                              = 2,
+
+    /**
+     * <p>Same as OFF mode, except that this capture will not be
+     * used by camera device background auto-exposure, auto-white balance and
+     * auto-focus algorithms (3A) to update their statistics.</p>
+     * <p>Specifically, the 3A routines are locked to the last
+     * values set from a request with AUTO, OFF, or
+     * USE_SCENE_MODE, and any statistics or state updates
+     * collected from manual captures with OFF_KEEP_STATE will be
+     * discarded by the camera device.</p>
+     */
+    ACAMERA_CONTROL_MODE_OFF_KEEP_STATE                              = 3,
+
+} acamera_metadata_enum_android_control_mode_t;
+
+// ACAMERA_CONTROL_SCENE_MODE
+typedef enum acamera_metadata_enum_acamera_control_scene_mode {
+    /**
+     * <p>Indicates that no scene modes are set for a given capture request.</p>
+     */
+    ACAMERA_CONTROL_SCENE_MODE_DISABLED                              = 0,
+
+    /**
+     * <p>If face detection support exists, use face
+     * detection data for auto-focus, auto-white balance, and
+     * auto-exposure routines.</p>
+     * <p>If face detection statistics are disabled
+     * (i.e. ACAMERA_STATISTICS_FACE_DETECT_MODE is set to OFF),
+     * this should still operate correctly (but will not return
+     * face detection statistics to the framework).</p>
+     * <p>Unlike the other scene modes, ACAMERA_CONTROL_AE_MODE,
+     * ACAMERA_CONTROL_AWB_MODE, and ACAMERA_CONTROL_AF_MODE
+     * remain active when FACE_PRIORITY is set.</p>
+     *
+     * @see ACAMERA_CONTROL_AE_MODE
+     * @see ACAMERA_CONTROL_AF_MODE
+     * @see ACAMERA_CONTROL_AWB_MODE
+     * @see ACAMERA_STATISTICS_FACE_DETECT_MODE
+     */
+    ACAMERA_CONTROL_SCENE_MODE_FACE_PRIORITY                         = 1,
+
+    /**
+     * <p>Optimized for photos of quickly moving objects.</p>
+     * <p>Similar to SPORTS.</p>
+     */
+    ACAMERA_CONTROL_SCENE_MODE_ACTION                                = 2,
+
+    /**
+     * <p>Optimized for still photos of people.</p>
+     */
+    ACAMERA_CONTROL_SCENE_MODE_PORTRAIT                              = 3,
+
+    /**
+     * <p>Optimized for photos of distant macroscopic objects.</p>
+     */
+    ACAMERA_CONTROL_SCENE_MODE_LANDSCAPE                             = 4,
+
+    /**
+     * <p>Optimized for low-light settings.</p>
+     */
+    ACAMERA_CONTROL_SCENE_MODE_NIGHT                                 = 5,
+
+    /**
+     * <p>Optimized for still photos of people in low-light
+     * settings.</p>
+     */
+    ACAMERA_CONTROL_SCENE_MODE_NIGHT_PORTRAIT                        = 6,
+
+    /**
+     * <p>Optimized for dim, indoor settings where flash must
+     * remain off.</p>
+     */
+    ACAMERA_CONTROL_SCENE_MODE_THEATRE                               = 7,
+
+    /**
+     * <p>Optimized for bright, outdoor beach settings.</p>
+     */
+    ACAMERA_CONTROL_SCENE_MODE_BEACH                                 = 8,
+
+    /**
+     * <p>Optimized for bright, outdoor settings containing snow.</p>
+     */
+    ACAMERA_CONTROL_SCENE_MODE_SNOW                                  = 9,
+
+    /**
+     * <p>Optimized for scenes of the setting sun.</p>
+     */
+    ACAMERA_CONTROL_SCENE_MODE_SUNSET                                = 10,
+
+    /**
+     * <p>Optimized to avoid blurry photos due to small amounts of
+     * device motion (for example: due to hand shake).</p>
+     */
+    ACAMERA_CONTROL_SCENE_MODE_STEADYPHOTO                           = 11,
+
+    /**
+     * <p>Optimized for nighttime photos of fireworks.</p>
+     */
+    ACAMERA_CONTROL_SCENE_MODE_FIREWORKS                             = 12,
+
+    /**
+     * <p>Optimized for photos of quickly moving people.</p>
+     * <p>Similar to ACTION.</p>
+     */
+    ACAMERA_CONTROL_SCENE_MODE_SPORTS                                = 13,
+
+    /**
+     * <p>Optimized for dim, indoor settings with multiple moving
+     * people.</p>
+     */
+    ACAMERA_CONTROL_SCENE_MODE_PARTY                                 = 14,
+
+    /**
+     * <p>Optimized for dim settings where the main light source
+     * is a flame.</p>
+     */
+    ACAMERA_CONTROL_SCENE_MODE_CANDLELIGHT                           = 15,
+
+    /**
+     * <p>Optimized for accurately capturing a photo of barcode
+     * for use by camera applications that wish to read the
+     * barcode value.</p>
+     */
+    ACAMERA_CONTROL_SCENE_MODE_BARCODE                               = 16,
+
+    /**
+     * <p>Turn on a device-specific high dynamic range (HDR) mode.</p>
+     * <p>In this scene mode, the camera device captures images
+     * that keep a larger range of scene illumination levels
+     * visible in the final image. For example, when taking a
+     * picture of a object in front of a bright window, both
+     * the object and the scene through the window may be
+     * visible when using HDR mode, while in normal AUTO mode,
+     * one or the other may be poorly exposed. As a tradeoff,
+     * HDR mode generally takes much longer to capture a single
+     * image, has no user control, and may have other artifacts
+     * depending on the HDR method used.</p>
+     * <p>Therefore, HDR captures operate at a much slower rate
+     * than regular captures.</p>
+     * <p>In this mode, on LIMITED or FULL devices, when a request
+     * is made with a ACAMERA_CONTROL_CAPTURE_INTENT of
+     * STILL_CAPTURE, the camera device will capture an image
+     * using a high dynamic range capture technique.  On LEGACY
+     * devices, captures that target a JPEG-format output will
+     * be captured with HDR, and the capture intent is not
+     * relevant.</p>
+     * <p>The HDR capture may involve the device capturing a burst
+     * of images internally and combining them into one, or it
+     * may involve the device using specialized high dynamic
+     * range capture hardware. In all cases, a single image is
+     * produced in response to a capture request submitted
+     * while in HDR mode.</p>
+     * <p>Since substantial post-processing is generally needed to
+     * produce an HDR image, only YUV, PRIVATE, and JPEG
+     * outputs are supported for LIMITED/FULL device HDR
+     * captures, and only JPEG outputs are supported for LEGACY
+     * HDR captures. Using a RAW output for HDR capture is not
+     * supported.</p>
+     * <p>Some devices may also support always-on HDR, which
+     * applies HDR processing at full frame rate.  For these
+     * devices, intents other than STILL_CAPTURE will also
+     * produce an HDR output with no frame rate impact compared
+     * to normal operation, though the quality may be lower
+     * than for STILL_CAPTURE intents.</p>
+     * <p>If SCENE_MODE_HDR is used with unsupported output types
+     * or capture intents, the images captured will be as if
+     * the SCENE_MODE was not enabled at all.</p>
+     *
+     * @see ACAMERA_CONTROL_CAPTURE_INTENT
+     */
+    ACAMERA_CONTROL_SCENE_MODE_HDR                                   = 18,
+
+} acamera_metadata_enum_android_control_scene_mode_t;
+
+// ACAMERA_CONTROL_VIDEO_STABILIZATION_MODE
+typedef enum acamera_metadata_enum_acamera_control_video_stabilization_mode {
+    /**
+     * <p>Video stabilization is disabled.</p>
+     */
+    ACAMERA_CONTROL_VIDEO_STABILIZATION_MODE_OFF                     = 0,
+
+    /**
+     * <p>Video stabilization is enabled.</p>
+     */
+    ACAMERA_CONTROL_VIDEO_STABILIZATION_MODE_ON                      = 1,
+
+} acamera_metadata_enum_android_control_video_stabilization_mode_t;
+
+// ACAMERA_CONTROL_AE_STATE
+typedef enum acamera_metadata_enum_acamera_control_ae_state {
+    /**
+     * <p>AE is off or recently reset.</p>
+     * <p>When a camera device is opened, it starts in
+     * this state. This is a transient state, the camera device may skip reporting
+     * this state in capture result.</p>
+     */
+    ACAMERA_CONTROL_AE_STATE_INACTIVE                                = 0,
+
+    /**
+     * <p>AE doesn't yet have a good set of control values
+     * for the current scene.</p>
+     * <p>This is a transient state, the camera device may skip
+     * reporting this state in capture result.</p>
+     */
+    ACAMERA_CONTROL_AE_STATE_SEARCHING                               = 1,
+
+    /**
+     * <p>AE has a good set of control values for the
+     * current scene.</p>
+     */
+    ACAMERA_CONTROL_AE_STATE_CONVERGED                               = 2,
+
+    /**
+     * <p>AE has been locked.</p>
+     */
+    ACAMERA_CONTROL_AE_STATE_LOCKED                                  = 3,
+
+    /**
+     * <p>AE has a good set of control values, but flash
+     * needs to be fired for good quality still
+     * capture.</p>
+     */
+    ACAMERA_CONTROL_AE_STATE_FLASH_REQUIRED                          = 4,
+
+    /**
+     * <p>AE has been asked to do a precapture sequence
+     * and is currently executing it.</p>
+     * <p>Precapture can be triggered through setting
+     * ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER to START. Currently
+     * active and completed (if it causes camera device internal AE lock) precapture
+     * metering sequence can be canceled through setting
+     * ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER to CANCEL.</p>
+     * <p>Once PRECAPTURE completes, AE will transition to CONVERGED
+     * or FLASH_REQUIRED as appropriate. This is a transient
+     * state, the camera device may skip reporting this state in
+     * capture result.</p>
+     *
+     * @see ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER
+     */
+    ACAMERA_CONTROL_AE_STATE_PRECAPTURE                              = 5,
+
+} acamera_metadata_enum_android_control_ae_state_t;
+
+// ACAMERA_CONTROL_AF_STATE
+typedef enum acamera_metadata_enum_acamera_control_af_state {
+    /**
+     * <p>AF is off or has not yet tried to scan/been asked
+     * to scan.</p>
+     * <p>When a camera device is opened, it starts in this
+     * state. This is a transient state, the camera device may
+     * skip reporting this state in capture
+     * result.</p>
+     */
+    ACAMERA_CONTROL_AF_STATE_INACTIVE                                = 0,
+
+    /**
+     * <p>AF is currently performing an AF scan initiated the
+     * camera device in a continuous autofocus mode.</p>
+     * <p>Only used by CONTINUOUS_* AF modes. This is a transient
+     * state, the camera device may skip reporting this state in
+     * capture result.</p>
+     */
+    ACAMERA_CONTROL_AF_STATE_PASSIVE_SCAN                            = 1,
+
+    /**
+     * <p>AF currently believes it is in focus, but may
+     * restart scanning at any time.</p>
+     * <p>Only used by CONTINUOUS_* AF modes. This is a transient
+     * state, the camera device may skip reporting this state in
+     * capture result.</p>
+     */
+    ACAMERA_CONTROL_AF_STATE_PASSIVE_FOCUSED                         = 2,
+
+    /**
+     * <p>AF is performing an AF scan because it was
+     * triggered by AF trigger.</p>
+     * <p>Only used by AUTO or MACRO AF modes. This is a transient
+     * state, the camera device may skip reporting this state in
+     * capture result.</p>
+     */
+    ACAMERA_CONTROL_AF_STATE_ACTIVE_SCAN                             = 3,
+
+    /**
+     * <p>AF believes it is focused correctly and has locked
+     * focus.</p>
+     * <p>This state is reached only after an explicit START AF trigger has been
+     * sent (ACAMERA_CONTROL_AF_TRIGGER), when good focus has been obtained.</p>
+     * <p>The lens will remain stationary until the AF mode (ACAMERA_CONTROL_AF_MODE) is changed or
+     * a new AF trigger is sent to the camera device (ACAMERA_CONTROL_AF_TRIGGER).</p>
+     *
+     * @see ACAMERA_CONTROL_AF_MODE
+     * @see ACAMERA_CONTROL_AF_TRIGGER
+     */
+    ACAMERA_CONTROL_AF_STATE_FOCUSED_LOCKED                          = 4,
+
+    /**
+     * <p>AF has failed to focus successfully and has locked
+     * focus.</p>
+     * <p>This state is reached only after an explicit START AF trigger has been
+     * sent (ACAMERA_CONTROL_AF_TRIGGER), when good focus cannot be obtained.</p>
+     * <p>The lens will remain stationary until the AF mode (ACAMERA_CONTROL_AF_MODE) is changed or
+     * a new AF trigger is sent to the camera device (ACAMERA_CONTROL_AF_TRIGGER).</p>
+     *
+     * @see ACAMERA_CONTROL_AF_MODE
+     * @see ACAMERA_CONTROL_AF_TRIGGER
+     */
+    ACAMERA_CONTROL_AF_STATE_NOT_FOCUSED_LOCKED                      = 5,
+
+    /**
+     * <p>AF finished a passive scan without finding focus,
+     * and may restart scanning at any time.</p>
+     * <p>Only used by CONTINUOUS_* AF modes. This is a transient state, the camera
+     * device may skip reporting this state in capture result.</p>
+     * <p>LEGACY camera devices do not support this state. When a passive
+     * scan has finished, it will always go to PASSIVE_FOCUSED.</p>
+     */
+    ACAMERA_CONTROL_AF_STATE_PASSIVE_UNFOCUSED                       = 6,
+
+} acamera_metadata_enum_android_control_af_state_t;
+
+// ACAMERA_CONTROL_AWB_STATE
+typedef enum acamera_metadata_enum_acamera_control_awb_state {
+    /**
+     * <p>AWB is not in auto mode, or has not yet started metering.</p>
+     * <p>When a camera device is opened, it starts in this
+     * state. This is a transient state, the camera device may
+     * skip reporting this state in capture
+     * result.</p>
+     */
+    ACAMERA_CONTROL_AWB_STATE_INACTIVE                               = 0,
+
+    /**
+     * <p>AWB doesn't yet have a good set of control
+     * values for the current scene.</p>
+     * <p>This is a transient state, the camera device
+     * may skip reporting this state in capture result.</p>
+     */
+    ACAMERA_CONTROL_AWB_STATE_SEARCHING                              = 1,
+
+    /**
+     * <p>AWB has a good set of control values for the
+     * current scene.</p>
+     */
+    ACAMERA_CONTROL_AWB_STATE_CONVERGED                              = 2,
+
+    /**
+     * <p>AWB has been locked.</p>
+     */
+    ACAMERA_CONTROL_AWB_STATE_LOCKED                                 = 3,
+
+} acamera_metadata_enum_android_control_awb_state_t;
+
+// ACAMERA_CONTROL_AE_LOCK_AVAILABLE
+typedef enum acamera_metadata_enum_acamera_control_ae_lock_available {
+    ACAMERA_CONTROL_AE_LOCK_AVAILABLE_FALSE                          = 0,
+
+    ACAMERA_CONTROL_AE_LOCK_AVAILABLE_TRUE                           = 1,
+
+} acamera_metadata_enum_android_control_ae_lock_available_t;
+
+// ACAMERA_CONTROL_AWB_LOCK_AVAILABLE
+typedef enum acamera_metadata_enum_acamera_control_awb_lock_available {
+    ACAMERA_CONTROL_AWB_LOCK_AVAILABLE_FALSE                         = 0,
+
+    ACAMERA_CONTROL_AWB_LOCK_AVAILABLE_TRUE                          = 1,
+
+} acamera_metadata_enum_android_control_awb_lock_available_t;
+
+// ACAMERA_CONTROL_ENABLE_ZSL
+typedef enum acamera_metadata_enum_acamera_control_enable_zsl {
+    /**
+     * <p>Requests with ACAMERA_CONTROL_CAPTURE_INTENT == STILL_CAPTURE must be captured
+     * after previous requests.</p>
+     *
+     * @see ACAMERA_CONTROL_CAPTURE_INTENT
+     */
+    ACAMERA_CONTROL_ENABLE_ZSL_FALSE                                 = 0,
+
+    /**
+     * <p>Requests with ACAMERA_CONTROL_CAPTURE_INTENT == STILL_CAPTURE may or may not be
+     * captured before previous requests.</p>
+     *
+     * @see ACAMERA_CONTROL_CAPTURE_INTENT
+     */
+    ACAMERA_CONTROL_ENABLE_ZSL_TRUE                                  = 1,
+
+} acamera_metadata_enum_android_control_enable_zsl_t;
+
+
+
+// ACAMERA_EDGE_MODE
+typedef enum acamera_metadata_enum_acamera_edge_mode {
+    /**
+     * <p>No edge enhancement is applied.</p>
+     */
+    ACAMERA_EDGE_MODE_OFF                                            = 0,
+
+    /**
+     * <p>Apply edge enhancement at a quality level that does not slow down frame rate
+     * relative to sensor output. It may be the same as OFF if edge enhancement will
+     * slow down frame rate relative to sensor.</p>
+     */
+    ACAMERA_EDGE_MODE_FAST                                           = 1,
+
+    /**
+     * <p>Apply high-quality edge enhancement, at a cost of possibly reduced output frame rate.</p>
+     */
+    ACAMERA_EDGE_MODE_HIGH_QUALITY                                   = 2,
+
+    /**
+     * <p>Edge enhancement is applied at different levels for different output streams,
+     * based on resolution. Streams at maximum recording resolution (see {@link
+     * ACameraDevice_createCaptureSession}) or below have
+     * edge enhancement applied, while higher-resolution streams have no edge enhancement
+     * applied. The level of edge enhancement for low-resolution streams is tuned so that
+     * frame rate is not impacted, and the quality is equal to or better than FAST (since it
+     * is only applied to lower-resolution outputs, quality may improve from FAST).</p>
+     * <p>This mode is intended to be used by applications operating in a zero-shutter-lag mode
+     * with YUV or PRIVATE reprocessing, where the application continuously captures
+     * high-resolution intermediate buffers into a circular buffer, from which a final image is
+     * produced via reprocessing when a user takes a picture.  For such a use case, the
+     * high-resolution buffers must not have edge enhancement applied to maximize efficiency of
+     * preview and to avoid double-applying enhancement when reprocessed, while low-resolution
+     * buffers (used for recording or preview, generally) need edge enhancement applied for
+     * reasonable preview quality.</p>
+     * <p>This mode is guaranteed to be supported by devices that support either the
+     * YUV_REPROCESSING or PRIVATE_REPROCESSING capabilities
+     * (ACAMERA_REQUEST_AVAILABLE_CAPABILITIES lists either of those capabilities) and it will
+     * be the default mode for CAMERA3_TEMPLATE_ZERO_SHUTTER_LAG template.</p>
+     *
+     * @see ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
+     */
+    ACAMERA_EDGE_MODE_ZERO_SHUTTER_LAG                               = 3,
+
+} acamera_metadata_enum_android_edge_mode_t;
+
+
+// ACAMERA_FLASH_MODE
+typedef enum acamera_metadata_enum_acamera_flash_mode {
+    /**
+     * <p>Do not fire the flash for this capture.</p>
+     */
+    ACAMERA_FLASH_MODE_OFF                                           = 0,
+
+    /**
+     * <p>If the flash is available and charged, fire flash
+     * for this capture.</p>
+     */
+    ACAMERA_FLASH_MODE_SINGLE                                        = 1,
+
+    /**
+     * <p>Transition flash to continuously on.</p>
+     */
+    ACAMERA_FLASH_MODE_TORCH                                         = 2,
+
+} acamera_metadata_enum_android_flash_mode_t;
+
+// ACAMERA_FLASH_STATE
+typedef enum acamera_metadata_enum_acamera_flash_state {
+    /**
+     * <p>No flash on camera.</p>
+     */
+    ACAMERA_FLASH_STATE_UNAVAILABLE                                  = 0,
+
+    /**
+     * <p>Flash is charging and cannot be fired.</p>
+     */
+    ACAMERA_FLASH_STATE_CHARGING                                     = 1,
+
+    /**
+     * <p>Flash is ready to fire.</p>
+     */
+    ACAMERA_FLASH_STATE_READY                                        = 2,
+
+    /**
+     * <p>Flash fired for this capture.</p>
+     */
+    ACAMERA_FLASH_STATE_FIRED                                        = 3,
+
+    /**
+     * <p>Flash partially illuminated this frame.</p>
+     * <p>This is usually due to the next or previous frame having
+     * the flash fire, and the flash spilling into this capture
+     * due to hardware limitations.</p>
+     */
+    ACAMERA_FLASH_STATE_PARTIAL                                      = 4,
+
+} acamera_metadata_enum_android_flash_state_t;
+
+
+// ACAMERA_FLASH_INFO_AVAILABLE
+typedef enum acamera_metadata_enum_acamera_flash_info_available {
+    ACAMERA_FLASH_INFO_AVAILABLE_FALSE                               = 0,
+
+    ACAMERA_FLASH_INFO_AVAILABLE_TRUE                                = 1,
+
+} acamera_metadata_enum_android_flash_info_available_t;
+
+
+// ACAMERA_HOT_PIXEL_MODE
+typedef enum acamera_metadata_enum_acamera_hot_pixel_mode {
+    /**
+     * <p>No hot pixel correction is applied.</p>
+     * <p>The frame rate must not be reduced relative to sensor raw output
+     * for this option.</p>
+     * <p>The hotpixel map may be returned in ACAMERA_STATISTICS_HOT_PIXEL_MAP.</p>
+     *
+     * @see ACAMERA_STATISTICS_HOT_PIXEL_MAP
+     */
+    ACAMERA_HOT_PIXEL_MODE_OFF                                       = 0,
+
+    /**
+     * <p>Hot pixel correction is applied, without reducing frame
+     * rate relative to sensor raw output.</p>
+     * <p>The hotpixel map may be returned in ACAMERA_STATISTICS_HOT_PIXEL_MAP.</p>
+     *
+     * @see ACAMERA_STATISTICS_HOT_PIXEL_MAP
+     */
+    ACAMERA_HOT_PIXEL_MODE_FAST                                      = 1,
+
+    /**
+     * <p>High-quality hot pixel correction is applied, at a cost
+     * of possibly reduced frame rate relative to sensor raw output.</p>
+     * <p>The hotpixel map may be returned in ACAMERA_STATISTICS_HOT_PIXEL_MAP.</p>
+     *
+     * @see ACAMERA_STATISTICS_HOT_PIXEL_MAP
+     */
+    ACAMERA_HOT_PIXEL_MODE_HIGH_QUALITY                              = 2,
+
+} acamera_metadata_enum_android_hot_pixel_mode_t;
+
+
+
+// ACAMERA_LENS_OPTICAL_STABILIZATION_MODE
+typedef enum acamera_metadata_enum_acamera_lens_optical_stabilization_mode {
+    /**
+     * <p>Optical stabilization is unavailable.</p>
+     */
+    ACAMERA_LENS_OPTICAL_STABILIZATION_MODE_OFF                      = 0,
+
+    /**
+     * <p>Optical stabilization is enabled.</p>
+     */
+    ACAMERA_LENS_OPTICAL_STABILIZATION_MODE_ON                       = 1,
+
+} acamera_metadata_enum_android_lens_optical_stabilization_mode_t;
+
+// ACAMERA_LENS_FACING
+typedef enum acamera_metadata_enum_acamera_lens_facing {
+    /**
+     * <p>The camera device faces the same direction as the device's screen.</p>
+     */
+    ACAMERA_LENS_FACING_FRONT                                        = 0,
+
+    /**
+     * <p>The camera device faces the opposite direction as the device's screen.</p>
+     */
+    ACAMERA_LENS_FACING_BACK                                         = 1,
+
+    /**
+     * <p>The camera device is an external camera, and has no fixed facing relative to the
+     * device's screen.</p>
+     */
+    ACAMERA_LENS_FACING_EXTERNAL                                     = 2,
+
+} acamera_metadata_enum_android_lens_facing_t;
+
+// ACAMERA_LENS_STATE
+typedef enum acamera_metadata_enum_acamera_lens_state {
+    /**
+     * <p>The lens parameters (ACAMERA_LENS_FOCAL_LENGTH, ACAMERA_LENS_FOCUS_DISTANCE,
+     * ACAMERA_LENS_FILTER_DENSITY and ACAMERA_LENS_APERTURE) are not changing.</p>
+     *
+     * @see ACAMERA_LENS_APERTURE
+     * @see ACAMERA_LENS_FILTER_DENSITY
+     * @see ACAMERA_LENS_FOCAL_LENGTH
+     * @see ACAMERA_LENS_FOCUS_DISTANCE
+     */
+    ACAMERA_LENS_STATE_STATIONARY                                    = 0,
+
+    /**
+     * <p>One or several of the lens parameters
+     * (ACAMERA_LENS_FOCAL_LENGTH, ACAMERA_LENS_FOCUS_DISTANCE,
+     * ACAMERA_LENS_FILTER_DENSITY or ACAMERA_LENS_APERTURE) is
+     * currently changing.</p>
+     *
+     * @see ACAMERA_LENS_APERTURE
+     * @see ACAMERA_LENS_FILTER_DENSITY
+     * @see ACAMERA_LENS_FOCAL_LENGTH
+     * @see ACAMERA_LENS_FOCUS_DISTANCE
+     */
+    ACAMERA_LENS_STATE_MOVING                                        = 1,
+
+} acamera_metadata_enum_android_lens_state_t;
+
+
+// ACAMERA_LENS_INFO_FOCUS_DISTANCE_CALIBRATION
+typedef enum acamera_metadata_enum_acamera_lens_info_focus_distance_calibration {
+    /**
+     * <p>The lens focus distance is not accurate, and the units used for
+     * ACAMERA_LENS_FOCUS_DISTANCE do not correspond to any physical units.</p>
+     * <p>Setting the lens to the same focus distance on separate occasions may
+     * result in a different real focus distance, depending on factors such
+     * as the orientation of the device, the age of the focusing mechanism,
+     * and the device temperature. The focus distance value will still be
+     * in the range of <code>[0, ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE]</code>, where 0
+     * represents the farthest focus.</p>
+     *
+     * @see ACAMERA_LENS_FOCUS_DISTANCE
+     * @see ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE
+     */
+    ACAMERA_LENS_INFO_FOCUS_DISTANCE_CALIBRATION_UNCALIBRATED        = 0,
+
+    /**
+     * <p>The lens focus distance is measured in diopters.</p>
+     * <p>However, setting the lens to the same focus distance
+     * on separate occasions may result in a different real
+     * focus distance, depending on factors such as the
+     * orientation of the device, the age of the focusing
+     * mechanism, and the device temperature.</p>
+     */
+    ACAMERA_LENS_INFO_FOCUS_DISTANCE_CALIBRATION_APPROXIMATE         = 1,
+
+    /**
+     * <p>The lens focus distance is measured in diopters, and
+     * is calibrated.</p>
+     * <p>The lens mechanism is calibrated so that setting the
+     * same focus distance is repeatable on multiple
+     * occasions with good accuracy, and the focus distance
+     * corresponds to the real physical distance to the plane
+     * of best focus.</p>
+     */
+    ACAMERA_LENS_INFO_FOCUS_DISTANCE_CALIBRATION_CALIBRATED          = 2,
+
+} acamera_metadata_enum_android_lens_info_focus_distance_calibration_t;
+
+
+// ACAMERA_NOISE_REDUCTION_MODE
+typedef enum acamera_metadata_enum_acamera_noise_reduction_mode {
+    /**
+     * <p>No noise reduction is applied.</p>
+     */
+    ACAMERA_NOISE_REDUCTION_MODE_OFF                                 = 0,
+
+    /**
+     * <p>Noise reduction is applied without reducing frame rate relative to sensor
+     * output. It may be the same as OFF if noise reduction will reduce frame rate
+     * relative to sensor.</p>
+     */
+    ACAMERA_NOISE_REDUCTION_MODE_FAST                                = 1,
+
+    /**
+     * <p>High-quality noise reduction is applied, at the cost of possibly reduced frame
+     * rate relative to sensor output.</p>
+     */
+    ACAMERA_NOISE_REDUCTION_MODE_HIGH_QUALITY                        = 2,
+
+    /**
+     * <p>MINIMAL noise reduction is applied without reducing frame rate relative to
+     * sensor output. </p>
+     */
+    ACAMERA_NOISE_REDUCTION_MODE_MINIMAL                             = 3,
+
+    /**
+     * <p>Noise reduction is applied at different levels for different output streams,
+     * based on resolution. Streams at maximum recording resolution (see {@link
+     * ACameraDevice_createCaptureSession}) or below have noise
+     * reduction applied, while higher-resolution streams have MINIMAL (if supported) or no
+     * noise reduction applied (if MINIMAL is not supported.) The degree of noise reduction
+     * for low-resolution streams is tuned so that frame rate is not impacted, and the quality
+     * is equal to or better than FAST (since it is only applied to lower-resolution outputs,
+     * quality may improve from FAST).</p>
+     * <p>This mode is intended to be used by applications operating in a zero-shutter-lag mode
+     * with YUV or PRIVATE reprocessing, where the application continuously captures
+     * high-resolution intermediate buffers into a circular buffer, from which a final image is
+     * produced via reprocessing when a user takes a picture.  For such a use case, the
+     * high-resolution buffers must not have noise reduction applied to maximize efficiency of
+     * preview and to avoid over-applying noise filtering when reprocessing, while
+     * low-resolution buffers (used for recording or preview, generally) need noise reduction
+     * applied for reasonable preview quality.</p>
+     * <p>This mode is guaranteed to be supported by devices that support either the
+     * YUV_REPROCESSING or PRIVATE_REPROCESSING capabilities
+     * (ACAMERA_REQUEST_AVAILABLE_CAPABILITIES lists either of those capabilities) and it will
+     * be the default mode for CAMERA3_TEMPLATE_ZERO_SHUTTER_LAG template.</p>
+     *
+     * @see ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
+     */
+    ACAMERA_NOISE_REDUCTION_MODE_ZERO_SHUTTER_LAG                    = 4,
+
+} acamera_metadata_enum_android_noise_reduction_mode_t;
+
+
+
+// ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
+typedef enum acamera_metadata_enum_acamera_request_available_capabilities {
+    /**
+     * <p>The minimal set of capabilities that every camera
+     * device (regardless of ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL)
+     * supports.</p>
+     * <p>This capability is listed by all normal devices, and
+     * indicates that the camera device has a feature set
+     * that's comparable to the baseline requirements for the
+     * older android.hardware.Camera API.</p>
+     * <p>Devices with the DEPTH_OUTPUT capability might not list this
+     * capability, indicating that they support only depth measurement,
+     * not standard color output.</p>
+     *
+     * @see ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL
+     */
+    ACAMERA_REQUEST_AVAILABLE_CAPABILITIES_BACKWARD_COMPATIBLE       = 0,
+
+    /**
+     * <p>The camera device can be manually controlled (3A algorithms such
+     * as auto-exposure, and auto-focus can be bypassed).
+     * The camera device supports basic manual control of the sensor image
+     * acquisition related stages. This means the following controls are
+     * guaranteed to be supported:</p>
+     * <ul>
+     * <li>Manual frame duration control<ul>
+     * <li>ACAMERA_SENSOR_FRAME_DURATION</li>
+     * <li>ACAMERA_SENSOR_INFO_MAX_FRAME_DURATION</li>
+     * </ul>
+     * </li>
+     * <li>Manual exposure control<ul>
+     * <li>ACAMERA_SENSOR_EXPOSURE_TIME</li>
+     * <li>ACAMERA_SENSOR_INFO_EXPOSURE_TIME_RANGE</li>
+     * </ul>
+     * </li>
+     * <li>Manual sensitivity control<ul>
+     * <li>ACAMERA_SENSOR_SENSITIVITY</li>
+     * <li>ACAMERA_SENSOR_INFO_SENSITIVITY_RANGE</li>
+     * </ul>
+     * </li>
+     * <li>Manual lens control (if the lens is adjustable)<ul>
+     * <li>ACAMERA_LENS_*</li>
+     * </ul>
+     * </li>
+     * <li>Manual flash control (if a flash unit is present)<ul>
+     * <li>ACAMERA_FLASH_*</li>
+     * </ul>
+     * </li>
+     * <li>Manual black level locking<ul>
+     * <li>ACAMERA_BLACK_LEVEL_LOCK</li>
+     * </ul>
+     * </li>
+     * <li>Auto exposure lock<ul>
+     * <li>ACAMERA_CONTROL_AE_LOCK</li>
+     * </ul>
+     * </li>
+     * </ul>
+     * <p>If any of the above 3A algorithms are enabled, then the camera
+     * device will accurately report the values applied by 3A in the
+     * result.</p>
+     * <p>A given camera device may also support additional manual sensor controls,
+     * but this capability only covers the above list of controls.</p>
+     * <p>If this is supported, android.scaler.streamConfigurationMap will
+     * additionally return a min frame duration that is greater than
+     * zero for each supported size-format combination.</p>
+     *
+     * @see ACAMERA_BLACK_LEVEL_LOCK
+     * @see ACAMERA_CONTROL_AE_LOCK
+     * @see ACAMERA_SENSOR_EXPOSURE_TIME
+     * @see ACAMERA_SENSOR_FRAME_DURATION
+     * @see ACAMERA_SENSOR_INFO_EXPOSURE_TIME_RANGE
+     * @see ACAMERA_SENSOR_INFO_MAX_FRAME_DURATION
+     * @see ACAMERA_SENSOR_INFO_SENSITIVITY_RANGE
+     * @see ACAMERA_SENSOR_SENSITIVITY
+     */
+    ACAMERA_REQUEST_AVAILABLE_CAPABILITIES_MANUAL_SENSOR             = 1,
+
+    /**
+     * <p>The camera device post-processing stages can be manually controlled.
+     * The camera device supports basic manual control of the image post-processing
+     * stages. This means the following controls are guaranteed to be supported:</p>
+     * <ul>
+     * <li>
+     * <p>Manual tonemap control</p>
+     * <ul>
+     * <li>android.tonemap.curve</li>
+     * <li>ACAMERA_TONEMAP_MODE</li>
+     * <li>ACAMERA_TONEMAP_MAX_CURVE_POINTS</li>
+     * <li>ACAMERA_TONEMAP_GAMMA</li>
+     * <li>ACAMERA_TONEMAP_PRESET_CURVE</li>
+     * </ul>
+     * </li>
+     * <li>
+     * <p>Manual white balance control</p>
+     * <ul>
+     * <li>ACAMERA_COLOR_CORRECTION_TRANSFORM</li>
+     * <li>ACAMERA_COLOR_CORRECTION_GAINS</li>
+     * </ul>
+     * </li>
+     * <li>Manual lens shading map control<ul>
+     * <li>ACAMERA_SHADING_MODE</li>
+     * <li>ACAMERA_STATISTICS_LENS_SHADING_MAP_MODE</li>
+     * <li>ACAMERA_STATISTICS_LENS_SHADING_MAP</li>
+     * <li>ACAMERA_LENS_INFO_SHADING_MAP_SIZE</li>
+     * </ul>
+     * </li>
+     * <li>Manual aberration correction control (if aberration correction is supported)<ul>
+     * <li>ACAMERA_COLOR_CORRECTION_ABERRATION_MODE</li>
+     * <li>ACAMERA_COLOR_CORRECTION_AVAILABLE_ABERRATION_MODES</li>
+     * </ul>
+     * </li>
+     * <li>Auto white balance lock<ul>
+     * <li>ACAMERA_CONTROL_AWB_LOCK</li>
+     * </ul>
+     * </li>
+     * </ul>
+     * <p>If auto white balance is enabled, then the camera device
+     * will accurately report the values applied by AWB in the result.</p>
+     * <p>A given camera device may also support additional post-processing
+     * controls, but this capability only covers the above list of controls.</p>
+     *
+     * @see ACAMERA_COLOR_CORRECTION_ABERRATION_MODE
+     * @see ACAMERA_COLOR_CORRECTION_AVAILABLE_ABERRATION_MODES
+     * @see ACAMERA_COLOR_CORRECTION_GAINS
+     * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
+     * @see ACAMERA_CONTROL_AWB_LOCK
+     * @see ACAMERA_LENS_INFO_SHADING_MAP_SIZE
+     * @see ACAMERA_SHADING_MODE
+     * @see ACAMERA_STATISTICS_LENS_SHADING_MAP
+     * @see ACAMERA_STATISTICS_LENS_SHADING_MAP_MODE
+     * @see ACAMERA_TONEMAP_GAMMA
+     * @see ACAMERA_TONEMAP_MAX_CURVE_POINTS
+     * @see ACAMERA_TONEMAP_MODE
+     * @see ACAMERA_TONEMAP_PRESET_CURVE
+     */
+    ACAMERA_REQUEST_AVAILABLE_CAPABILITIES_MANUAL_POST_PROCESSING    = 2,
+
+    /**
+     * <p>The camera device supports outputting RAW buffers and
+     * metadata for interpreting them.</p>
+     * <p>Devices supporting the RAW capability allow both for
+     * saving DNG files, and for direct application processing of
+     * raw sensor images.</p>
+     * <ul>
+     * <li>RAW_SENSOR is supported as an output format.</li>
+     * <li>The maximum available resolution for RAW_SENSOR streams
+     *   will match either the value in
+     *   ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE or
+     *   ACAMERA_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE.</li>
+     * <li>All DNG-related optional metadata entries are provided
+     *   by the camera device.</li>
+     * </ul>
+     *
+     * @see ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE
+     * @see ACAMERA_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE
+     */
+    ACAMERA_REQUEST_AVAILABLE_CAPABILITIES_RAW                       = 3,
+
+    /**
+     * <p>The camera device supports accurately reporting the sensor settings for many of
+     * the sensor controls while the built-in 3A algorithm is running.  This allows
+     * reporting of sensor settings even when these settings cannot be manually changed.</p>
+     * <p>The values reported for the following controls are guaranteed to be available
+     * in the CaptureResult, including when 3A is enabled:</p>
+     * <ul>
+     * <li>Exposure control<ul>
+     * <li>ACAMERA_SENSOR_EXPOSURE_TIME</li>
+     * </ul>
+     * </li>
+     * <li>Sensitivity control<ul>
+     * <li>ACAMERA_SENSOR_SENSITIVITY</li>
+     * </ul>
+     * </li>
+     * <li>Lens controls (if the lens is adjustable)<ul>
+     * <li>ACAMERA_LENS_FOCUS_DISTANCE</li>
+     * <li>ACAMERA_LENS_APERTURE</li>
+     * </ul>
+     * </li>
+     * </ul>
+     * <p>This capability is a subset of the MANUAL_SENSOR control capability, and will
+     * always be included if the MANUAL_SENSOR capability is available.</p>
+     *
+     * @see ACAMERA_LENS_APERTURE
+     * @see ACAMERA_LENS_FOCUS_DISTANCE
+     * @see ACAMERA_SENSOR_EXPOSURE_TIME
+     * @see ACAMERA_SENSOR_SENSITIVITY
+     */
+    ACAMERA_REQUEST_AVAILABLE_CAPABILITIES_READ_SENSOR_SETTINGS      = 5,
+
+    /**
+     * <p>The camera device supports capturing high-resolution images at &gt;= 20 frames per
+     * second, in at least the uncompressed YUV format, when post-processing settings are set
+     * to FAST. Additionally, maximum-resolution images can be captured at &gt;= 10 frames
+     * per second.  Here, 'high resolution' means at least 8 megapixels, or the maximum
+     * resolution of the device, whichever is smaller.</p>
+     * <p>More specifically, this means that at least one output {@link
+     * AIMAGE_FORMAT_YUV_420_888} size listed in
+     * {@link ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS} is larger or equal to the
+     * 'high resolution' defined above, and can be captured at at least 20 fps.
+     * For the largest {@link AIMAGE_FORMAT_YUV_420_888} size listed in
+     * {@link ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS}, camera device can capture this
+     * size for at least 10 frames per second.
+     * Also the ACAMERA_CONTROL_AE_AVAILABLE_TARGET_FPS_RANGES entry lists at least one FPS range
+     * where the minimum FPS is &gt;= 1 / minimumFrameDuration for the largest YUV_420_888 size.</p>
+     * <p>If the device supports the {@link AIMAGE_FORMAT_RAW10}, {@link
+     * AIMAGE_FORMAT_RAW12}, then those can also be captured at the same rate
+     * as the maximum-size YUV_420_888 resolution is.</p>
+     * <p>In addition, the ACAMERA_SYNC_MAX_LATENCY field is guaranted to have a value between 0
+     * and 4, inclusive. ACAMERA_CONTROL_AE_LOCK_AVAILABLE and ACAMERA_CONTROL_AWB_LOCK_AVAILABLE
+     * are also guaranteed to be <code>true</code> so burst capture with these two locks ON yields
+     * consistent image output.</p>
+     *
+     * @see ACAMERA_CONTROL_AE_AVAILABLE_TARGET_FPS_RANGES
+     * @see ACAMERA_CONTROL_AE_LOCK_AVAILABLE
+     * @see ACAMERA_CONTROL_AWB_LOCK_AVAILABLE
+     * @see ACAMERA_SYNC_MAX_LATENCY
+     */
+    ACAMERA_REQUEST_AVAILABLE_CAPABILITIES_BURST_CAPTURE             = 6,
+
+    /**
+     * <p>The camera device can produce depth measurements from its field of view.</p>
+     * <p>This capability requires the camera device to support the following:</p>
+     * <ul>
+     * <li>{@link AIMAGE_FORMAT_DEPTH16} is supported as an output format.</li>
+     * <li>{@link AIMAGE_FORMAT_DEPTH_POINT_CLOUD} is optionally supported as an
+     *   output format.</li>
+     * <li>This camera device, and all camera devices with the same ACAMERA_LENS_FACING,
+     *   will list the following calibration entries in {@link ACameraMetadata} from both
+     *   {@link ACameraManager_getCameraCharacteristics} and
+     *   {@link ACameraCaptureSession_captureCallback_result}:<ul>
+     * <li>ACAMERA_LENS_POSE_TRANSLATION</li>
+     * <li>ACAMERA_LENS_POSE_ROTATION</li>
+     * <li>ACAMERA_LENS_INTRINSIC_CALIBRATION</li>
+     * <li>ACAMERA_LENS_RADIAL_DISTORTION</li>
+     * </ul>
+     * </li>
+     * <li>The ACAMERA_DEPTH_DEPTH_IS_EXCLUSIVE entry is listed by this device.</li>
+     * <li>A LIMITED camera with only the DEPTH_OUTPUT capability does not have to support
+     *   normal YUV_420_888, JPEG, and PRIV-format outputs. It only has to support the DEPTH16
+     *   format.</li>
+     * </ul>
+     * <p>Generally, depth output operates at a slower frame rate than standard color capture,
+     * so the DEPTH16 and DEPTH_POINT_CLOUD formats will commonly have a stall duration that
+     * should be accounted for (see
+     * {@link ACAMERA_DEPTH_AVAILABLE_DEPTH_STALL_DURATIONS}).
+     * On a device that supports both depth and color-based output, to enable smooth preview,
+     * using a repeating burst is recommended, where a depth-output target is only included
+     * once every N frames, where N is the ratio between preview output rate and depth output
+     * rate, including depth stall time.</p>
+     *
+     * @see ACAMERA_DEPTH_DEPTH_IS_EXCLUSIVE
+     * @see ACAMERA_LENS_FACING
+     * @see ACAMERA_LENS_INTRINSIC_CALIBRATION
+     * @see ACAMERA_LENS_POSE_ROTATION
+     * @see ACAMERA_LENS_POSE_TRANSLATION
+     * @see ACAMERA_LENS_RADIAL_DISTORTION
+     */
+    ACAMERA_REQUEST_AVAILABLE_CAPABILITIES_DEPTH_OUTPUT              = 8,
+
+} acamera_metadata_enum_android_request_available_capabilities_t;
+
+
+// ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS
+typedef enum acamera_metadata_enum_acamera_scaler_available_stream_configurations {
+    ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS_OUTPUT            = 0,
+
+    ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS_INPUT             = 1,
+
+} acamera_metadata_enum_android_scaler_available_stream_configurations_t;
+
+// ACAMERA_SCALER_CROPPING_TYPE
+typedef enum acamera_metadata_enum_acamera_scaler_cropping_type {
+    /**
+     * <p>The camera device only supports centered crop regions.</p>
+     */
+    ACAMERA_SCALER_CROPPING_TYPE_CENTER_ONLY                         = 0,
+
+    /**
+     * <p>The camera device supports arbitrarily chosen crop regions.</p>
+     */
+    ACAMERA_SCALER_CROPPING_TYPE_FREEFORM                            = 1,
+
+} acamera_metadata_enum_android_scaler_cropping_type_t;
+
+
+// ACAMERA_SENSOR_REFERENCE_ILLUMINANT1
+typedef enum acamera_metadata_enum_acamera_sensor_reference_illuminant1 {
+    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_DAYLIGHT                    = 1,
+
+    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_FLUORESCENT                 = 2,
+
+    /**
+     * <p>Incandescent light</p>
+     */
+    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_TUNGSTEN                    = 3,
+
+    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_FLASH                       = 4,
+
+    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_FINE_WEATHER                = 9,
+
+    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_CLOUDY_WEATHER              = 10,
+
+    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_SHADE                       = 11,
+
+    /**
+     * <p>D 5700 - 7100K</p>
+     */
+    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_DAYLIGHT_FLUORESCENT        = 12,
+
+    /**
+     * <p>N 4600 - 5400K</p>
+     */
+    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_DAY_WHITE_FLUORESCENT       = 13,
+
+    /**
+     * <p>W 3900 - 4500K</p>
+     */
+    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_COOL_WHITE_FLUORESCENT      = 14,
+
+    /**
+     * <p>WW 3200 - 3700K</p>
+     */
+    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_WHITE_FLUORESCENT           = 15,
+
+    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_STANDARD_A                  = 17,
+
+    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_STANDARD_B                  = 18,
+
+    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_STANDARD_C                  = 19,
+
+    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_D55                         = 20,
+
+    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_D65                         = 21,
+
+    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_D75                         = 22,
+
+    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_D50                         = 23,
+
+    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_ISO_STUDIO_TUNGSTEN         = 24,
+
+} acamera_metadata_enum_android_sensor_reference_illuminant1_t;
+
+// ACAMERA_SENSOR_TEST_PATTERN_MODE
+typedef enum acamera_metadata_enum_acamera_sensor_test_pattern_mode {
+    /**
+     * <p>No test pattern mode is used, and the camera
+     * device returns captures from the image sensor.</p>
+     * <p>This is the default if the key is not set.</p>
+     */
+    ACAMERA_SENSOR_TEST_PATTERN_MODE_OFF                             = 0,
+
+    /**
+     * <p>Each pixel in <code>[R, G_even, G_odd, B]</code> is replaced by its
+     * respective color channel provided in
+     * ACAMERA_SENSOR_TEST_PATTERN_DATA.</p>
+     * <p>For example:</p>
+     * <pre><code>android.testPatternData = [0, 0xFFFFFFFF, 0xFFFFFFFF, 0]
+     * </code></pre>
+     * <p>All green pixels are 100% green. All red/blue pixels are black.</p>
+     * <pre><code>android.testPatternData = [0xFFFFFFFF, 0, 0xFFFFFFFF, 0]
+     * </code></pre>
+     * <p>All red pixels are 100% red. Only the odd green pixels
+     * are 100% green. All blue pixels are 100% black.</p>
+     *
+     * @see ACAMERA_SENSOR_TEST_PATTERN_DATA
+     */
+    ACAMERA_SENSOR_TEST_PATTERN_MODE_SOLID_COLOR                     = 1,
+
+    /**
+     * <p>All pixel data is replaced with an 8-bar color pattern.</p>
+     * <p>The vertical bars (left-to-right) are as follows:</p>
+     * <ul>
+     * <li>100% white</li>
+     * <li>yellow</li>
+     * <li>cyan</li>
+     * <li>green</li>
+     * <li>magenta</li>
+     * <li>red</li>
+     * <li>blue</li>
+     * <li>black</li>
+     * </ul>
+     * <p>In general the image would look like the following:</p>
+     * <pre><code>W Y C G M R B K
+     * W Y C G M R B K
+     * W Y C G M R B K
+     * W Y C G M R B K
+     * W Y C G M R B K
+     * . . . . . . . .
+     * . . . . . . . .
+     * . . . . . . . .
+     *
+     * (B = Blue, K = Black)
+     * </code></pre>
+     * <p>Each bar should take up 1/8 of the sensor pixel array width.
+     * When this is not possible, the bar size should be rounded
+     * down to the nearest integer and the pattern can repeat
+     * on the right side.</p>
+     * <p>Each bar's height must always take up the full sensor
+     * pixel array height.</p>
+     * <p>Each pixel in this test pattern must be set to either
+     * 0% intensity or 100% intensity.</p>
+     */
+    ACAMERA_SENSOR_TEST_PATTERN_MODE_COLOR_BARS                      = 2,
+
+    /**
+     * <p>The test pattern is similar to COLOR_BARS, except that
+     * each bar should start at its specified color at the top,
+     * and fade to gray at the bottom.</p>
+     * <p>Furthermore each bar is further subdivided into a left and
+     * right half. The left half should have a smooth gradient,
+     * and the right half should have a quantized gradient.</p>
+     * <p>In particular, the right half's should consist of blocks of the
+     * same color for 1/16th active sensor pixel array width.</p>
+     * <p>The least significant bits in the quantized gradient should
+     * be copied from the most significant bits of the smooth gradient.</p>
+     * <p>The height of each bar should always be a multiple of 128.
+     * When this is not the case, the pattern should repeat at the bottom
+     * of the image.</p>
+     */
+    ACAMERA_SENSOR_TEST_PATTERN_MODE_COLOR_BARS_FADE_TO_GRAY         = 3,
+
+    /**
+     * <p>All pixel data is replaced by a pseudo-random sequence
+     * generated from a PN9 512-bit sequence (typically implemented
+     * in hardware with a linear feedback shift register).</p>
+     * <p>The generator should be reset at the beginning of each frame,
+     * and thus each subsequent raw frame with this test pattern should
+     * be exactly the same as the last.</p>
+     */
+    ACAMERA_SENSOR_TEST_PATTERN_MODE_PN9                             = 4,
+
+    /**
+     * <p>The first custom test pattern. All custom patterns that are
+     * available only on this camera device are at least this numeric
+     * value.</p>
+     * <p>All of the custom test patterns will be static
+     * (that is the raw image must not vary from frame to frame).</p>
+     */
+    ACAMERA_SENSOR_TEST_PATTERN_MODE_CUSTOM1                         = 256,
+
+} acamera_metadata_enum_android_sensor_test_pattern_mode_t;
+
+
+// ACAMERA_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT
+typedef enum acamera_metadata_enum_acamera_sensor_info_color_filter_arrangement {
+    ACAMERA_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_RGGB                = 0,
+
+    ACAMERA_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_GRBG                = 1,
+
+    ACAMERA_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_GBRG                = 2,
+
+    ACAMERA_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_BGGR                = 3,
+
+    /**
+     * <p>Sensor is not Bayer; output has 3 16-bit
+     * values for each pixel, instead of just 1 16-bit value
+     * per pixel.</p>
+     */
+    ACAMERA_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_RGB                 = 4,
+
+} acamera_metadata_enum_android_sensor_info_color_filter_arrangement_t;
+
+// ACAMERA_SENSOR_INFO_TIMESTAMP_SOURCE
+typedef enum acamera_metadata_enum_acamera_sensor_info_timestamp_source {
+    /**
+     * <p>Timestamps from ACAMERA_SENSOR_TIMESTAMP are in nanoseconds and monotonic,
+     * but can not be compared to timestamps from other subsystems
+     * (e.g. accelerometer, gyro etc.), or other instances of the same or different
+     * camera devices in the same system. Timestamps between streams and results for
+     * a single camera instance are comparable, and the timestamps for all buffers
+     * and the result metadata generated by a single capture are identical.</p>
+     *
+     * @see ACAMERA_SENSOR_TIMESTAMP
+     */
+    ACAMERA_SENSOR_INFO_TIMESTAMP_SOURCE_UNKNOWN                     = 0,
+
+    /**
+     * <p>Timestamps from ACAMERA_SENSOR_TIMESTAMP are in the same timebase as
+     * <a href="https://developer.android.com/reference/android/os/SystemClock.html#elapsedRealtimeNanos">elapsedRealtimeNanos</a>
+     * (or CLOCK_BOOTTIME), and they can be compared to other timestamps using that base.</p>
+     *
+     * @see ACAMERA_SENSOR_TIMESTAMP
+     */
+    ACAMERA_SENSOR_INFO_TIMESTAMP_SOURCE_REALTIME                    = 1,
+
+} acamera_metadata_enum_android_sensor_info_timestamp_source_t;
+
+// ACAMERA_SENSOR_INFO_LENS_SHADING_APPLIED
+typedef enum acamera_metadata_enum_acamera_sensor_info_lens_shading_applied {
+    ACAMERA_SENSOR_INFO_LENS_SHADING_APPLIED_FALSE                   = 0,
+
+    ACAMERA_SENSOR_INFO_LENS_SHADING_APPLIED_TRUE                    = 1,
+
+} acamera_metadata_enum_android_sensor_info_lens_shading_applied_t;
+
+
+// ACAMERA_SHADING_MODE
+typedef enum acamera_metadata_enum_acamera_shading_mode {
+    /**
+     * <p>No lens shading correction is applied.</p>
+     */
+    ACAMERA_SHADING_MODE_OFF                                         = 0,
+
+    /**
+     * <p>Apply lens shading corrections, without slowing
+     * frame rate relative to sensor raw output</p>
+     */
+    ACAMERA_SHADING_MODE_FAST                                        = 1,
+
+    /**
+     * <p>Apply high-quality lens shading correction, at the
+     * cost of possibly reduced frame rate.</p>
+     */
+    ACAMERA_SHADING_MODE_HIGH_QUALITY                                = 2,
+
+} acamera_metadata_enum_android_shading_mode_t;
+
+
+// ACAMERA_STATISTICS_FACE_DETECT_MODE
+typedef enum acamera_metadata_enum_acamera_statistics_face_detect_mode {
+    /**
+     * <p>Do not include face detection statistics in capture
+     * results.</p>
+     */
+    ACAMERA_STATISTICS_FACE_DETECT_MODE_OFF                          = 0,
+
+    /**
+     * <p>Return face rectangle and confidence values only.</p>
+     */
+    ACAMERA_STATISTICS_FACE_DETECT_MODE_SIMPLE                       = 1,
+
+    /**
+     * <p>Return all face
+     * metadata.</p>
+     * <p>In this mode, face rectangles, scores, landmarks, and face IDs are all valid.</p>
+     */
+    ACAMERA_STATISTICS_FACE_DETECT_MODE_FULL                         = 2,
+
+} acamera_metadata_enum_android_statistics_face_detect_mode_t;
+
+// ACAMERA_STATISTICS_HOT_PIXEL_MAP_MODE
+typedef enum acamera_metadata_enum_acamera_statistics_hot_pixel_map_mode {
+    /**
+     * <p>Hot pixel map production is disabled.</p>
+     */
+    ACAMERA_STATISTICS_HOT_PIXEL_MAP_MODE_OFF                        = 0,
+
+    /**
+     * <p>Hot pixel map production is enabled.</p>
+     */
+    ACAMERA_STATISTICS_HOT_PIXEL_MAP_MODE_ON                         = 1,
+
+} acamera_metadata_enum_android_statistics_hot_pixel_map_mode_t;
+
+// ACAMERA_STATISTICS_SCENE_FLICKER
+typedef enum acamera_metadata_enum_acamera_statistics_scene_flicker {
+    /**
+     * <p>The camera device does not detect any flickering illumination
+     * in the current scene.</p>
+     */
+    ACAMERA_STATISTICS_SCENE_FLICKER_NONE                            = 0,
+
+    /**
+     * <p>The camera device detects illumination flickering at 50Hz
+     * in the current scene.</p>
+     */
+    ACAMERA_STATISTICS_SCENE_FLICKER_50HZ                            = 1,
+
+    /**
+     * <p>The camera device detects illumination flickering at 60Hz
+     * in the current scene.</p>
+     */
+    ACAMERA_STATISTICS_SCENE_FLICKER_60HZ                            = 2,
+
+} acamera_metadata_enum_android_statistics_scene_flicker_t;
+
+// ACAMERA_STATISTICS_LENS_SHADING_MAP_MODE
+typedef enum acamera_metadata_enum_acamera_statistics_lens_shading_map_mode {
+    /**
+     * <p>Do not include a lens shading map in the capture result.</p>
+     */
+    ACAMERA_STATISTICS_LENS_SHADING_MAP_MODE_OFF                     = 0,
+
+    /**
+     * <p>Include a lens shading map in the capture result.</p>
+     */
+    ACAMERA_STATISTICS_LENS_SHADING_MAP_MODE_ON                      = 1,
+
+} acamera_metadata_enum_android_statistics_lens_shading_map_mode_t;
+
+
+
+// ACAMERA_TONEMAP_MODE
+typedef enum acamera_metadata_enum_acamera_tonemap_mode {
+    /**
+     * <p>Use the tone mapping curve specified in
+     * the ACAMERA_TONEMAPCURVE_* entries.</p>
+     * <p>All color enhancement and tonemapping must be disabled, except
+     * for applying the tonemapping curve specified by
+     * android.tonemap.curve.</p>
+     * <p>Must not slow down frame rate relative to raw
+     * sensor output.</p>
+     */
+    ACAMERA_TONEMAP_MODE_CONTRAST_CURVE                              = 0,
+
+    /**
+     * <p>Advanced gamma mapping and color enhancement may be applied, without
+     * reducing frame rate compared to raw sensor output.</p>
+     */
+    ACAMERA_TONEMAP_MODE_FAST                                        = 1,
+
+    /**
+     * <p>High-quality gamma mapping and color enhancement will be applied, at
+     * the cost of possibly reduced frame rate compared to raw sensor output.</p>
+     */
+    ACAMERA_TONEMAP_MODE_HIGH_QUALITY                                = 2,
+
+    /**
+     * <p>Use the gamma value specified in ACAMERA_TONEMAP_GAMMA to peform
+     * tonemapping.</p>
+     * <p>All color enhancement and tonemapping must be disabled, except
+     * for applying the tonemapping curve specified by ACAMERA_TONEMAP_GAMMA.</p>
+     * <p>Must not slow down frame rate relative to raw sensor output.</p>
+     *
+     * @see ACAMERA_TONEMAP_GAMMA
+     */
+    ACAMERA_TONEMAP_MODE_GAMMA_VALUE                                 = 3,
+
+    /**
+     * <p>Use the preset tonemapping curve specified in
+     * ACAMERA_TONEMAP_PRESET_CURVE to peform tonemapping.</p>
+     * <p>All color enhancement and tonemapping must be disabled, except
+     * for applying the tonemapping curve specified by
+     * ACAMERA_TONEMAP_PRESET_CURVE.</p>
+     * <p>Must not slow down frame rate relative to raw sensor output.</p>
+     *
+     * @see ACAMERA_TONEMAP_PRESET_CURVE
+     */
+    ACAMERA_TONEMAP_MODE_PRESET_CURVE                                = 4,
+
+} acamera_metadata_enum_android_tonemap_mode_t;
+
+// ACAMERA_TONEMAP_PRESET_CURVE
+typedef enum acamera_metadata_enum_acamera_tonemap_preset_curve {
+    /**
+     * <p>Tonemapping curve is defined by sRGB</p>
+     */
+    ACAMERA_TONEMAP_PRESET_CURVE_SRGB                                = 0,
+
+    /**
+     * <p>Tonemapping curve is defined by ITU-R BT.709</p>
+     */
+    ACAMERA_TONEMAP_PRESET_CURVE_REC709                              = 1,
+
+} acamera_metadata_enum_android_tonemap_preset_curve_t;
+
+
+
+// ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL
+typedef enum acamera_metadata_enum_acamera_info_supported_hardware_level {
+    /**
+     * <p>This camera device does not have enough capabilities to qualify as a <code>FULL</code> device or
+     * better.</p>
+     * <p>Only the stream configurations listed in the <code>LEGACY</code> and <code>LIMITED</code> tables in the
+     * {@link ACameraDevice_createCaptureSession} documentation are guaranteed to be supported.</p>
+     * <p>All <code>LIMITED</code> devices support the <code>BACKWARDS_COMPATIBLE</code> capability, indicating basic
+     * support for color image capture. The only exception is that the device may
+     * alternatively support only the <code>DEPTH_OUTPUT</code> capability, if it can only output depth
+     * measurements and not color images.</p>
+     * <p><code>LIMITED</code> devices and above require the use of ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER
+     * to lock exposure metering (and calculate flash power, for cameras with flash) before
+     * capturing a high-quality still image.</p>
+     * <p>A <code>LIMITED</code> device that only lists the <code>BACKWARDS_COMPATIBLE</code> capability is only
+     * required to support full-automatic operation and post-processing (<code>OFF</code> is not
+     * supported for ACAMERA_CONTROL_AE_MODE, ACAMERA_CONTROL_AF_MODE, or
+     * ACAMERA_CONTROL_AWB_MODE)</p>
+     * <p>Additional capabilities may optionally be supported by a <code>LIMITED</code>-level device, and
+     * can be checked for in ACAMERA_REQUEST_AVAILABLE_CAPABILITIES.</p>
+     *
+     * @see ACAMERA_CONTROL_AE_MODE
+     * @see ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER
+     * @see ACAMERA_CONTROL_AF_MODE
+     * @see ACAMERA_CONTROL_AWB_MODE
+     * @see ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
+     */
+    ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED                    = 0,
+
+    /**
+     * <p>This camera device is capable of supporting advanced imaging applications.</p>
+     * <p>The stream configurations listed in the <code>FULL</code>, <code>LEGACY</code> and <code>LIMITED</code> tables in the
+     * {@link ACameraDevice_createCaptureSession} documentation are guaranteed to be supported.</p>
+     * <p>A <code>FULL</code> device will support below capabilities:</p>
+     * <ul>
+     * <li><code>BURST_CAPTURE</code> capability (ACAMERA_REQUEST_AVAILABLE_CAPABILITIES contains
+     *   <code>BURST_CAPTURE</code>)</li>
+     * <li>Per frame control (ACAMERA_SYNC_MAX_LATENCY <code>==</code> PER_FRAME_CONTROL)</li>
+     * <li>Manual sensor control (ACAMERA_REQUEST_AVAILABLE_CAPABILITIES contains <code>MANUAL_SENSOR</code>)</li>
+     * <li>Manual post-processing control (ACAMERA_REQUEST_AVAILABLE_CAPABILITIES contains
+     *   <code>MANUAL_POST_PROCESSING</code>)</li>
+     * <li>The required exposure time range defined in ACAMERA_SENSOR_INFO_EXPOSURE_TIME_RANGE</li>
+     * <li>The required maxFrameDuration defined in ACAMERA_SENSOR_INFO_MAX_FRAME_DURATION</li>
+     * </ul>
+     * <p>Note:
+     * Pre-API level 23, FULL devices also supported arbitrary cropping region
+     * (ACAMERA_SCALER_CROPPING_TYPE <code>== FREEFORM</code>); this requirement was relaxed in API level
+     * 23, and <code>FULL</code> devices may only support <code>CENTERED</code> cropping.</p>
+     *
+     * @see ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
+     * @see ACAMERA_SCALER_CROPPING_TYPE
+     * @see ACAMERA_SENSOR_INFO_EXPOSURE_TIME_RANGE
+     * @see ACAMERA_SENSOR_INFO_MAX_FRAME_DURATION
+     * @see ACAMERA_SYNC_MAX_LATENCY
+     */
+    ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL_FULL                       = 1,
+
+    /**
+     * <p>This camera device is running in backward compatibility mode.</p>
+     * <p>Only the stream configurations listed in the <code>LEGACY</code> table in the {@link
+     * ACameraDevice_createCaptureSession} documentation are supported.</p>
+     * <p>A <code>LEGACY</code> device does not support per-frame control, manual sensor control, manual
+     * post-processing, arbitrary cropping regions, and has relaxed performance constraints.
+     * No additional capabilities beyond <code>BACKWARD_COMPATIBLE</code> will ever be listed by a
+     * <code>LEGACY</code> device in ACAMERA_REQUEST_AVAILABLE_CAPABILITIES.</p>
+     * <p>In addition, the ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER is not functional on <code>LEGACY</code>
+     * devices. Instead, every request that includes a JPEG-format output target is treated
+     * as triggering a still capture, internally executing a precapture trigger.  This may
+     * fire the flash for flash power metering during precapture, and then fire the flash
+     * for the final capture, if a flash is available on the device and the AE mode is set to
+     * enable the flash.</p>
+     *
+     * @see ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER
+     * @see ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
+     */
+    ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL_LEGACY                     = 2,
+
+    /**
+     * <p>This camera device is capable of YUV reprocessing and RAW data capture, in addition to
+     * FULL-level capabilities.</p>
+     * <p>The stream configurations listed in the <code>LEVEL_3</code>, <code>RAW</code>, <code>FULL</code>, <code>LEGACY</code> and
+     * <code>LIMITED</code> tables in the {@link
+     * ACameraDevice_createCaptureSession}
+     * documentation are guaranteed to be supported.</p>
+     * <p>The following additional capabilities are guaranteed to be supported:</p>
+     * <ul>
+     * <li><code>YUV_REPROCESSING</code> capability (ACAMERA_REQUEST_AVAILABLE_CAPABILITIES contains
+     *   <code>YUV_REPROCESSING</code>)</li>
+     * <li><code>RAW</code> capability (ACAMERA_REQUEST_AVAILABLE_CAPABILITIES contains
+     *   <code>RAW</code>)</li>
+     * </ul>
+     *
+     * @see ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
+     */
+    ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL_3                          = 3,
+
+} acamera_metadata_enum_android_info_supported_hardware_level_t;
+
+
+// ACAMERA_BLACK_LEVEL_LOCK
+typedef enum acamera_metadata_enum_acamera_black_level_lock {
+    ACAMERA_BLACK_LEVEL_LOCK_OFF                                     = 0,
+
+    ACAMERA_BLACK_LEVEL_LOCK_ON                                      = 1,
+
+} acamera_metadata_enum_android_black_level_lock_t;
+
+
+// ACAMERA_SYNC_FRAME_NUMBER
+typedef enum acamera_metadata_enum_acamera_sync_frame_number {
+    /**
+     * <p>The current result is not yet fully synchronized to any request.</p>
+     * <p>Synchronization is in progress, and reading metadata from this
+     * result may include a mix of data that have taken effect since the
+     * last synchronization time.</p>
+     * <p>In some future result, within ACAMERA_SYNC_MAX_LATENCY frames,
+     * this value will update to the actual frame number frame number
+     * the result is guaranteed to be synchronized to (as long as the
+     * request settings remain constant).</p>
+     *
+     * @see ACAMERA_SYNC_MAX_LATENCY
+     */
+    ACAMERA_SYNC_FRAME_NUMBER_CONVERGING                             = -1,
+
+    /**
+     * <p>The current result's synchronization status is unknown.</p>
+     * <p>The result may have already converged, or it may be in
+     * progress.  Reading from this result may include some mix
+     * of settings from past requests.</p>
+     * <p>After a settings change, the new settings will eventually all
+     * take effect for the output buffers and results. However, this
+     * value will not change when that happens. Altering settings
+     * rapidly may provide outcomes using mixes of settings from recent
+     * requests.</p>
+     * <p>This value is intended primarily for backwards compatibility with
+     * the older camera implementations (for android.hardware.Camera).</p>
+     */
+    ACAMERA_SYNC_FRAME_NUMBER_UNKNOWN                                = -2,
+
+} acamera_metadata_enum_android_sync_frame_number_t;
+
+// ACAMERA_SYNC_MAX_LATENCY
+typedef enum acamera_metadata_enum_acamera_sync_max_latency {
+    /**
+     * <p>Every frame has the requests immediately applied.</p>
+     * <p>Changing controls over multiple requests one after another will
+     * produce results that have those controls applied atomically
+     * each frame.</p>
+     * <p>All FULL capability devices will have this as their maxLatency.</p>
+     */
+    ACAMERA_SYNC_MAX_LATENCY_PER_FRAME_CONTROL                       = 0,
+
+    /**
+     * <p>Each new frame has some subset (potentially the entire set)
+     * of the past requests applied to the camera settings.</p>
+     * <p>By submitting a series of identical requests, the camera device
+     * will eventually have the camera settings applied, but it is
+     * unknown when that exact point will be.</p>
+     * <p>All LEGACY capability devices will have this as their maxLatency.</p>
+     */
+    ACAMERA_SYNC_MAX_LATENCY_UNKNOWN                                 = -1,
+
+} acamera_metadata_enum_android_sync_max_latency_t;
+
+
+
+// ACAMERA_DEPTH_AVAILABLE_DEPTH_STREAM_CONFIGURATIONS
+typedef enum acamera_metadata_enum_acamera_depth_available_depth_stream_configurations {
+    ACAMERA_DEPTH_AVAILABLE_DEPTH_STREAM_CONFIGURATIONS_OUTPUT       = 0,
+
+    ACAMERA_DEPTH_AVAILABLE_DEPTH_STREAM_CONFIGURATIONS_INPUT        = 1,
+
+} acamera_metadata_enum_android_depth_available_depth_stream_configurations_t;
+
+// ACAMERA_DEPTH_DEPTH_IS_EXCLUSIVE
+typedef enum acamera_metadata_enum_acamera_depth_depth_is_exclusive {
+    ACAMERA_DEPTH_DEPTH_IS_EXCLUSIVE_FALSE                           = 0,
+
+    ACAMERA_DEPTH_DEPTH_IS_EXCLUSIVE_TRUE                            = 1,
+
+} acamera_metadata_enum_android_depth_depth_is_exclusive_t;
+
+#endif /* __ANDROID_API__ >= 24 */
+
+__END_DECLS
+
+#endif /* _NDK_CAMERA_METADATA_TAGS_H */
+
+/** @} */
diff --git a/include/camera/ndk/NdkCaptureRequest.h b/camera/include/camera/ndk/NdkCaptureRequest.h
similarity index 100%
rename from include/camera/ndk/NdkCaptureRequest.h
rename to camera/include/camera/ndk/NdkCaptureRequest.h
diff --git a/camera/ndk/Android.mk b/camera/ndk/Android.mk
index 40dbeef..591dfc2 100644
--- a/camera/ndk/Android.mk
+++ b/camera/ndk/Android.mk
@@ -51,8 +51,6 @@
     libcutils \
     libcamera_metadata
 
-LOCAL_CLANG := true
-
 include $(BUILD_SHARED_LIBRARY)
 
 endif
diff --git a/camera/ndk/impl/ACameraDevice.cpp b/camera/ndk/impl/ACameraDevice.cpp
index 7d78e2b..229b159 100644
--- a/camera/ndk/impl/ACameraDevice.cpp
+++ b/camera/ndk/impl/ACameraDevice.cpp
@@ -1347,6 +1347,12 @@
 }
 
 binder::Status
+CameraDevice::ServiceCallback::onRequestQueueEmpty() {
+    // onRequestQueueEmpty not yet implemented in NDK
+    return binder::Status::ok();
+}
+
+binder::Status
 CameraDevice::ServiceCallback::onRepeatingRequestError(int64_t lastFrameNumber) {
     binder::Status ret = binder::Status::ok();
 
diff --git a/camera/ndk/impl/ACameraDevice.h b/camera/ndk/impl/ACameraDevice.h
index 051462b..eb8028b 100644
--- a/camera/ndk/impl/ACameraDevice.h
+++ b/camera/ndk/impl/ACameraDevice.h
@@ -74,6 +74,7 @@
         binder::Status onResultReceived(const CameraMetadata& metadata,
                               const CaptureResultExtras& resultExtras) override;
         binder::Status onPrepared(int streamId) override;
+        binder::Status onRequestQueueEmpty() override;
         binder::Status onRepeatingRequestError(int64_t lastFrameNumber) override;
       private:
         const wp<CameraDevice> mDevice;
diff --git a/camera/ndk/impl/ACameraManager.cpp b/camera/ndk/impl/ACameraManager.cpp
index 35555ff..ba2100c 100644
--- a/camera/ndk/impl/ACameraManager.cpp
+++ b/camera/ndk/impl/ACameraManager.cpp
@@ -28,11 +28,6 @@
 
 using namespace android;
 
-//constants shared between ACameraManager and CameraManagerGlobal
-namespace {
-    const int kMaxCameraIdLen = 32;
-}
-
 namespace android {
 // Static member definitions
 const char* CameraManagerGlobal::kCameraIdKey   = "CameraId";
@@ -125,7 +120,11 @@
         if (mCameraServiceListener == nullptr) {
             mCameraServiceListener = new CameraServiceListener(this);
         }
-        mCameraService->addListener(mCameraServiceListener);
+        std::vector<hardware::CameraStatus> cameraStatuses{};
+        mCameraService->addListener(mCameraServiceListener, &cameraStatuses);
+        for (auto& c : cameraStatuses) {
+            onStatusChangedLocked(c.status, c.cameraId);
+        }
 
         // setup vendor tags
         sp<VendorTagDescriptor> desc = new VendorTagDescriptor();
@@ -157,8 +156,8 @@
     sp<CameraManagerGlobal> cm = mCameraManager.promote();
     if (cm != nullptr) {
         AutoMutex lock(cm->mLock);
-        for (auto pair : cm->mDeviceStatusMap) {
-            int32_t cameraId = pair.first;
+        for (auto& pair : cm->mDeviceStatusMap) {
+            const String8 &cameraId = pair.first;
             cm->onStatusChangedLocked(
                     CameraServiceListener::STATUS_NOT_PRESENT, cameraId);
         }
@@ -174,8 +173,8 @@
     auto pair = mCallbacks.insert(cb);
     // Send initial callbacks if callback is newly registered
     if (pair.second) {
-        for (auto pair : mDeviceStatusMap) {
-            int32_t cameraId = pair.first;
+        for (auto& pair : mDeviceStatusMap) {
+            const String8& cameraId = pair.first;
             int32_t status = pair.second;
 
             sp<AMessage> msg = new AMessage(kWhatSendSingleCallback, mHandler);
@@ -183,7 +182,7 @@
                     callback->onCameraAvailable : callback->onCameraUnavailable;
             msg->setPointer(kCallbackFpKey, (void *) cb);
             msg->setPointer(kContextKey, callback->context);
-            msg->setInt32(kCameraIdKey, cameraId);
+            msg->setString(kCameraIdKey, AString(cameraId));
             msg->post();
         }
     }
@@ -196,6 +195,26 @@
     mCallbacks.erase(cb);
 }
 
+void CameraManagerGlobal::getCameraIdList(std::vector<String8> *cameraIds) {
+    // Ensure that we have initialized/refreshed the list of available devices
+    auto cs = getCameraService();
+    Mutex::Autolock _l(mLock);
+
+    for(auto& deviceStatus : mDeviceStatusMap) {
+        if (deviceStatus.second == hardware::ICameraServiceListener::STATUS_NOT_PRESENT ||
+                deviceStatus.second == hardware::ICameraServiceListener::STATUS_ENUMERATING) {
+            continue;
+        }
+        bool camera2Support = false;
+        binder::Status serviceRet = cs->supportsCameraApi(String16(deviceStatus.first),
+                hardware::ICameraService::API_VERSION_2, &camera2Support);
+        if (!serviceRet.isOk() || !camera2Support) {
+            continue;
+        }
+        cameraIds->push_back(deviceStatus.first);
+    }
+}
+
 bool CameraManagerGlobal::validStatus(int32_t status) {
     switch (status) {
         case hardware::ICameraServiceListener::STATUS_NOT_PRESENT:
@@ -217,14 +236,6 @@
     }
 }
 
-void CameraManagerGlobal::CallbackHandler::sendSingleCallback(
-        int32_t cameraId, void* context,
-        ACameraManager_AvailabilityCallback cb) const {
-    char cameraIdStr[kMaxCameraIdLen];
-    snprintf(cameraIdStr, sizeof(cameraIdStr), "%d", cameraId);
-    (*cb)(context, cameraIdStr);
-}
-
 void CameraManagerGlobal::CallbackHandler::onMessageReceived(
         const sp<AMessage> &msg) {
     switch (msg->what()) {
@@ -232,7 +243,7 @@
         {
             ACameraManager_AvailabilityCallback cb;
             void* context;
-            int32_t cameraId;
+            AString cameraId;
             bool found = msg->findPointer(kCallbackFpKey, (void**) &cb);
             if (!found) {
                 ALOGE("%s: Cannot find camera callback fp!", __FUNCTION__);
@@ -243,12 +254,12 @@
                 ALOGE("%s: Cannot find callback context!", __FUNCTION__);
                 return;
             }
-            found = msg->findInt32(kCameraIdKey, &cameraId);
+            found = msg->findString(kCameraIdKey, &cameraId);
             if (!found) {
                 ALOGE("%s: Cannot find camera ID!", __FUNCTION__);
                 return;
             }
-            sendSingleCallback(cameraId, context, cb);
+            (*cb)(context, cameraId.c_str());
             break;
         }
         default:
@@ -258,10 +269,10 @@
 }
 
 binder::Status CameraManagerGlobal::CameraServiceListener::onStatusChanged(
-        int32_t status, int32_t cameraId) {
+        int32_t status, const String16& cameraId) {
     sp<CameraManagerGlobal> cm = mCameraManager.promote();
     if (cm != nullptr) {
-        cm->onStatusChanged(status, cameraId);
+        cm->onStatusChanged(status, String8(cameraId));
     } else {
         ALOGE("Cannot deliver status change. Global camera manager died");
     }
@@ -269,40 +280,40 @@
 }
 
 void CameraManagerGlobal::onStatusChanged(
-        int32_t status, int32_t cameraId) {
+        int32_t status, const String8& cameraId) {
     Mutex::Autolock _l(mLock);
     onStatusChangedLocked(status, cameraId);
 }
 
 void CameraManagerGlobal::onStatusChangedLocked(
-        int32_t status, int32_t cameraId) {
-        if (!validStatus(status)) {
-            ALOGE("%s: Invalid status %d", __FUNCTION__, status);
-            return;
-        }
+        int32_t status, const String8& cameraId) {
+    if (!validStatus(status)) {
+        ALOGE("%s: Invalid status %d", __FUNCTION__, status);
+        return;
+    }
 
-        bool firstStatus = (mDeviceStatusMap.count(cameraId) == 0);
-        int32_t oldStatus = firstStatus ?
-                status : // first status
-                mDeviceStatusMap[cameraId];
+    bool firstStatus = (mDeviceStatusMap.count(cameraId) == 0);
+    int32_t oldStatus = firstStatus ?
+            status : // first status
+            mDeviceStatusMap[cameraId];
 
-        if (!firstStatus &&
-                isStatusAvailable(status) == isStatusAvailable(oldStatus)) {
-            // No status update. No need to send callback
-            return;
-        }
+    if (!firstStatus &&
+            isStatusAvailable(status) == isStatusAvailable(oldStatus)) {
+        // No status update. No need to send callback
+        return;
+    }
 
-        // Iterate through all registered callbacks
-        mDeviceStatusMap[cameraId] = status;
-        for (auto cb : mCallbacks) {
-            sp<AMessage> msg = new AMessage(kWhatSendSingleCallback, mHandler);
-            ACameraManager_AvailabilityCallback cbFp = isStatusAvailable(status) ?
-                    cb.mAvailable : cb.mUnavailable;
-            msg->setPointer(kCallbackFpKey, (void *) cbFp);
-            msg->setPointer(kContextKey, cb.mContext);
-            msg->setInt32(kCameraIdKey, cameraId);
-            msg->post();
-        }
+    // Iterate through all registered callbacks
+    mDeviceStatusMap[cameraId] = status;
+    for (auto cb : mCallbacks) {
+        sp<AMessage> msg = new AMessage(kWhatSendSingleCallback, mHandler);
+        ACameraManager_AvailabilityCallback cbFp = isStatusAvailable(status) ?
+                cb.mAvailable : cb.mUnavailable;
+        msg->setPointer(kCallbackFpKey, (void *) cbFp);
+        msg->setPointer(kContextKey, cb.mContext);
+        msg->setString(kCameraIdKey, AString(cameraId));
+        msg->post();
+    }
 }
 
 } // namespace android
@@ -311,77 +322,13 @@
  * ACameraManger Implementation
  */
 camera_status_t
-ACameraManager::getOrCreateCameraIdListLocked(ACameraIdList** cameraIdList) {
-    if (mCachedCameraIdList.numCameras == kCameraIdListNotInit) {
-        if (isCameraServiceDisabled()) {
-            mCachedCameraIdList.numCameras = 0;
-            mCachedCameraIdList.cameraIds = new const char*[0];
-            *cameraIdList = &mCachedCameraIdList;
-            return ACAMERA_OK;
-        }
-
-        int numCameras = 0;
-        Vector<char *> cameraIds;
-        sp<hardware::ICameraService> cs = CameraManagerGlobal::getInstance().getCameraService();
-        if (cs == nullptr) {
-            ALOGE("%s: Cannot reach camera service!", __FUNCTION__);
-            return ACAMERA_ERROR_CAMERA_DISCONNECTED;
-        }
-        // Get number of cameras
-        int numAllCameras = 0;
-        binder::Status serviceRet = cs->getNumberOfCameras(hardware::ICameraService::CAMERA_TYPE_ALL,
-                &numAllCameras);
-        if (!serviceRet.isOk()) {
-            ALOGE("%s: Error getting camera count: %s", __FUNCTION__,
-                    serviceRet.toString8().string());
-            numAllCameras = 0;
-        }
-        // Filter API2 compatible cameras and push to cameraIds
-        for (int i = 0; i < numAllCameras; i++) {
-            // TODO: Only suppot HALs that supports API2 directly now
-            bool camera2Support = false;
-            serviceRet = cs->supportsCameraApi(i, hardware::ICameraService::API_VERSION_2,
-                    &camera2Support);
-            char buf[kMaxCameraIdLen];
-            if (camera2Support) {
-                numCameras++;
-                mCameraIds.insert(i);
-                snprintf(buf, sizeof(buf), "%d", i);
-                size_t cameraIdSize = strlen(buf) + 1;
-                char *cameraId = new char[cameraIdSize];
-                if (!cameraId) {
-                    ALOGE("Allocate memory for ACameraIdList failed!");
-                    return ACAMERA_ERROR_NOT_ENOUGH_MEMORY;
-                }
-                strlcpy(cameraId, buf, cameraIdSize);
-                cameraIds.push(cameraId);
-            }
-        }
-        mCachedCameraIdList.numCameras = numCameras;
-        mCachedCameraIdList.cameraIds = new const char*[numCameras];
-        if (!mCachedCameraIdList.cameraIds) {
-            ALOGE("Allocate memory for ACameraIdList failed!");
-            return ACAMERA_ERROR_NOT_ENOUGH_MEMORY;
-        }
-        for (int i = 0; i < numCameras; i++) {
-            mCachedCameraIdList.cameraIds[i] = cameraIds[i];
-        }
-    }
-    *cameraIdList = &mCachedCameraIdList;
-    return ACAMERA_OK;
-}
-
-camera_status_t
 ACameraManager::getCameraIdList(ACameraIdList** cameraIdList) {
     Mutex::Autolock _l(mLock);
-    ACameraIdList* cachedList;
-    camera_status_t ret = getOrCreateCameraIdListLocked(&cachedList);
-    if (ret != ACAMERA_OK) {
-        ALOGE("Get camera ID list failed! err: %d", ret);
-        return ret;
-    }
 
-    int numCameras = cachedList->numCameras;
+    std::vector<String8> idList;
+    CameraManagerGlobal::getInstance().getCameraIdList(&idList);
+
+    int numCameras = idList.size();
     ACameraIdList *out = new ACameraIdList;
     if (!out) {
         ALOGE("Allocate memory for ACameraIdList failed!");
@@ -391,14 +338,16 @@
     out->cameraIds = new const char*[numCameras];
     if (!out->cameraIds) {
         ALOGE("Allocate memory for ACameraIdList failed!");
+        deleteCameraIdList(out);
         return ACAMERA_ERROR_NOT_ENOUGH_MEMORY;
     }
     for (int i = 0; i < numCameras; i++) {
-        const char* src = cachedList->cameraIds[i];
+        const char* src = idList[i].string();
         size_t dstSize = strlen(src) + 1;
         char* dst = new char[dstSize];
         if (!dst) {
             ALOGE("Allocate memory for ACameraIdList failed!");
+            deleteCameraIdList(out);
             return ACAMERA_ERROR_NOT_ENOUGH_MEMORY;
         }
         strlcpy(dst, src, dstSize);
@@ -413,7 +362,9 @@
     if (cameraIdList != nullptr) {
         if (cameraIdList->cameraIds != nullptr) {
             for (int i = 0; i < cameraIdList->numCameras; i ++) {
-                delete[] cameraIdList->cameraIds[i];
+                if (cameraIdList->cameraIds[i] != nullptr) {
+                    delete[] cameraIdList->cameraIds[i];
+                }
             }
             delete[] cameraIdList->cameraIds;
         }
@@ -424,29 +375,27 @@
 camera_status_t ACameraManager::getCameraCharacteristics(
         const char *cameraIdStr, ACameraMetadata **characteristics) {
     Mutex::Autolock _l(mLock);
-    ACameraIdList* cachedList;
-    // Make sure mCameraIds is initialized
-    camera_status_t ret = getOrCreateCameraIdListLocked(&cachedList);
-    if (ret != ACAMERA_OK) {
-        ALOGE("%s: Get camera ID list failed! err: %d", __FUNCTION__, ret);
-        return ret;
-    }
-    int cameraId = atoi(cameraIdStr);
-    if (mCameraIds.count(cameraId) == 0) {
-        ALOGE("%s: Camera ID %s does not exist!", __FUNCTION__, cameraIdStr);
-        return ACAMERA_ERROR_INVALID_PARAMETER;
-    }
+
     sp<hardware::ICameraService> cs = CameraManagerGlobal::getInstance().getCameraService();
     if (cs == nullptr) {
         ALOGE("%s: Cannot reach camera service!", __FUNCTION__);
         return ACAMERA_ERROR_CAMERA_DISCONNECTED;
     }
     CameraMetadata rawMetadata;
-    binder::Status serviceRet = cs->getCameraCharacteristics(cameraId, &rawMetadata);
+    binder::Status serviceRet = cs->getCameraCharacteristics(String16(cameraIdStr), &rawMetadata);
     if (!serviceRet.isOk()) {
-        ALOGE("Get camera characteristics from camera service failed: %s",
-                serviceRet.toString8().string());
-        return ACAMERA_ERROR_UNKNOWN; // should not reach here
+        switch(serviceRet.serviceSpecificErrorCode()) {
+            case hardware::ICameraService::ERROR_DISCONNECTED:
+                ALOGE("%s: Camera %s has been disconnected", __FUNCTION__, cameraIdStr);
+                return ACAMERA_ERROR_CAMERA_DISCONNECTED;
+            case hardware::ICameraService::ERROR_ILLEGAL_ARGUMENT:
+                ALOGE("%s: Camera ID %s does not exist!", __FUNCTION__, cameraIdStr);
+                return ACAMERA_ERROR_INVALID_PARAMETER;
+            default:
+                ALOGE("Get camera characteristics from camera service failed: %s",
+                        serviceRet.toString8().string());
+                return ACAMERA_ERROR_UNKNOWN; // should not reach here
+        }
     }
 
     *characteristics = new ACameraMetadata(
@@ -475,16 +424,16 @@
     sp<hardware::ICameraService> cs = CameraManagerGlobal::getInstance().getCameraService();
     if (cs == nullptr) {
         ALOGE("%s: Cannot reach camera service!", __FUNCTION__);
+        delete device;
         return ACAMERA_ERROR_CAMERA_DISCONNECTED;
     }
 
-    int id = atoi(cameraId);
     sp<hardware::camera2::ICameraDeviceCallbacks> callbacks = device->getServiceCallback();
     sp<hardware::camera2::ICameraDeviceUser> deviceRemote;
     // No way to get package name from native.
     // Send a zero length package name and let camera service figure it out from UID
     binder::Status serviceRet = cs->connectDevice(
-            callbacks, id, String16(""),
+            callbacks, String16(cameraId), String16(""),
             hardware::ICameraService::USE_CALLING_UID, /*out*/&deviceRemote);
 
     if (!serviceRet.isOk()) {
@@ -533,11 +482,5 @@
 }
 
 ACameraManager::~ACameraManager() {
-    Mutex::Autolock _l(mLock);
-    if (mCachedCameraIdList.numCameras != kCameraIdListNotInit) {
-        for (int i = 0; i < mCachedCameraIdList.numCameras; i++) {
-            delete[] mCachedCameraIdList.cameraIds[i];
-        }
-        delete[] mCachedCameraIdList.cameraIds;
-    }
+
 }
diff --git a/camera/ndk/impl/ACameraManager.h b/camera/ndk/impl/ACameraManager.h
index 5b88904..97e4fd9 100644
--- a/camera/ndk/impl/ACameraManager.h
+++ b/camera/ndk/impl/ACameraManager.h
@@ -40,7 +40,7 @@
  * instances. Created when first ACameraManager is created and destroyed when
  * all ACameraManager instances are deleted.
  *
- * TODO: maybe CameraManagerGlobal is better sutied in libcameraclient?
+ * TODO: maybe CameraManagerGlobal is better suited in libcameraclient?
  */
 class CameraManagerGlobal final : public RefBase {
   public:
@@ -52,6 +52,11 @@
     void unregisterAvailabilityCallback(
             const ACameraManager_AvailabilityCallbacks *callback);
 
+    /**
+     * Return camera IDs that support camera2
+     */
+    void getCameraIdList(std::vector<String8> *cameraIds);
+
   private:
     sp<hardware::ICameraService> mCameraService;
     const int          kCameraServicePollDelay = 500000; // 0.5s
@@ -72,7 +77,7 @@
     class CameraServiceListener final : public hardware::BnCameraServiceListener {
       public:
         explicit CameraServiceListener(CameraManagerGlobal* cm) : mCameraManager(cm) {}
-        virtual binder::Status onStatusChanged(int32_t status, int32_t cameraId);
+        virtual binder::Status onStatusChanged(int32_t status, const String16& cameraId);
 
         // Torch API not implemented yet
         virtual binder::Status onTorchStatusChanged(int32_t, const String16&) {
@@ -125,22 +130,18 @@
       public:
         CallbackHandler() {}
         void onMessageReceived(const sp<AMessage> &msg) override;
-      private:
-        inline void sendSingleCallback(
-                int32_t cameraId, void* context,
-                ACameraManager_AvailabilityCallback cb) const;
     };
     sp<CallbackHandler> mHandler;
     sp<ALooper>         mCbLooper; // Looper thread where callbacks actually happen on
 
-    void onStatusChanged(int32_t status, int32_t cameraId);
-    void onStatusChangedLocked(int32_t status, int32_t cameraId);
+    void onStatusChanged(int32_t status, const String8& cameraId);
+    void onStatusChangedLocked(int32_t status, const String8& cameraId);
     // Utils for status
     static bool validStatus(int32_t status);
     static bool isStatusAvailable(int32_t status);
 
     // Map camera_id -> status
-    std::map<int32_t, int32_t> mDeviceStatusMap;
+    std::map<String8, int32_t> mDeviceStatusMap;
 
     // For the singleton instance
     static Mutex sLock;
@@ -157,7 +158,6 @@
  */
 struct ACameraManager {
     ACameraManager() :
-            mCachedCameraIdList({kCameraIdListNotInit, nullptr}),
             mGlobalManager(&(android::CameraManagerGlobal::getInstance())) {}
     ~ACameraManager();
     camera_status_t getCameraIdList(ACameraIdList** cameraIdList);
@@ -170,14 +170,10 @@
                                /*out*/ACameraDevice** device);
 
   private:
-    camera_status_t getOrCreateCameraIdListLocked(ACameraIdList** cameraIdList);
-
     enum {
         kCameraIdListNotInit = -1
     };
     android::Mutex         mLock;
-    std::set<int> mCameraIds;          // Init by getOrCreateCameraIdListLocked
-    ACameraIdList mCachedCameraIdList; // Init by getOrCreateCameraIdListLocked
     android::sp<android::CameraManagerGlobal> mGlobalManager;
 };
 
diff --git a/camera/ndk/impl/ACameraMetadata.cpp b/camera/ndk/impl/ACameraMetadata.cpp
index ab99e38..c0da592 100644
--- a/camera/ndk/impl/ACameraMetadata.cpp
+++ b/camera/ndk/impl/ACameraMetadata.cpp
@@ -278,6 +278,7 @@
         case ACAMERA_CONTROL_SCENE_MODE:
         case ACAMERA_CONTROL_VIDEO_STABILIZATION_MODE:
         case ACAMERA_CONTROL_POST_RAW_SENSITIVITY_BOOST:
+        case ACAMERA_CONTROL_ENABLE_ZSL:
         case ACAMERA_EDGE_MODE:
         case ACAMERA_FLASH_MODE:
         case ACAMERA_HOT_PIXEL_MODE:
diff --git a/camera/tests/Android.mk b/camera/tests/Android.mk
index 0978a81..659484f 100644
--- a/camera/tests/Android.mk
+++ b/camera/tests/Android.mk
@@ -18,7 +18,8 @@
 
 LOCAL_SRC_FILES:= \
 	VendorTagDescriptorTests.cpp \
-	CameraBinderTests.cpp
+	CameraBinderTests.cpp \
+	CameraZSLTests.cpp
 
 LOCAL_SHARED_LIBRARIES := \
 	liblog \
diff --git a/camera/tests/CameraBinderTests.cpp b/camera/tests/CameraBinderTests.cpp
index 828a758..946e3b8 100644
--- a/camera/tests/CameraBinderTests.cpp
+++ b/camera/tests/CameraBinderTests.cpp
@@ -65,14 +65,14 @@
 // Stub listener implementation
 class TestCameraServiceListener : public hardware::BnCameraServiceListener {
     std::map<String16, int32_t> mCameraTorchStatuses;
-    std::map<int32_t, int32_t> mCameraStatuses;
+    std::map<String16, int32_t> mCameraStatuses;
     mutable Mutex mLock;
     mutable Condition mCondition;
     mutable Condition mTorchCondition;
 public:
     virtual ~TestCameraServiceListener() {};
 
-    virtual binder::Status onStatusChanged(int32_t status, int32_t cameraId) {
+    virtual binder::Status onStatusChanged(int32_t status, const String16& cameraId) {
         Mutex::Autolock l(mLock);
         mCameraStatuses[cameraId] = status;
         mCondition.broadcast();
@@ -130,7 +130,7 @@
         return iter->second;
     };
 
-    int32_t getStatus(int32_t cameraId) const {
+    int32_t getStatus(const String16& cameraId) const {
         Mutex::Autolock l(mLock);
         const auto& iter = mCameraStatuses.find(cameraId);
         if (iter == mCameraStatuses.end()) {
@@ -151,6 +151,7 @@
         SENT_RESULT,
         UNINITIALIZED,
         REPEATING_REQUEST_ERROR,
+        REQUEST_QUEUE_EMPTY,
     };
 
 protected:
@@ -225,6 +226,14 @@
         return binder::Status::ok();
     }
 
+    virtual binder::Status onRequestQueueEmpty() {
+        Mutex::Autolock l(mLock);
+        mLastStatus = REQUEST_QUEUE_EMPTY;
+        mStatusesHit.push_back(mLastStatus);
+        mStatusCondition.broadcast();
+        return binder::Status::ok();
+    }
+
     // Test helper functions:
 
     bool hadError() const {
@@ -301,14 +310,16 @@
 
     // Check listener binder calls
     sp<TestCameraServiceListener> listener(new TestCameraServiceListener());
-    res = service->addListener(listener);
+    std::vector<hardware::CameraStatus> statuses;
+    res = service->addListener(listener, &statuses);
     EXPECT_TRUE(res.isOk()) << res;
 
-    EXPECT_TRUE(listener->waitForNumCameras(numCameras));
+    EXPECT_EQ(numCameras, static_cast<const int>(statuses.size()));
 
     for (int32_t i = 0; i < numCameras; i++) {
+        String16 cameraId = String16(String8::format("%d", i));
         bool isSupported = false;
-        res = service->supportsCameraApi(i,
+        res = service->supportsCameraApi(cameraId,
                 hardware::ICameraService::API_VERSION_2, &isSupported);
         EXPECT_TRUE(res.isOk()) << res;
 
@@ -319,12 +330,12 @@
 
         // Check metadata binder call
         CameraMetadata metadata;
-        res = service->getCameraCharacteristics(i, &metadata);
+        res = service->getCameraCharacteristics(cameraId, &metadata);
         EXPECT_TRUE(res.isOk()) << res;
         EXPECT_FALSE(metadata.isEmpty());
 
         // Make sure we're available, or skip device tests otherwise
-        int32_t s = listener->getStatus(i);
+        int32_t s = listener->getStatus(cameraId);
         EXPECT_EQ(::android::hardware::ICameraServiceListener::STATUS_PRESENT, s);
         if (s != ::android::hardware::ICameraServiceListener::STATUS_PRESENT) {
             continue;
@@ -333,7 +344,7 @@
         // Check connect binder calls
         sp<TestCameraDeviceCallbacks> callbacks(new TestCameraDeviceCallbacks());
         sp<hardware::camera2::ICameraDeviceUser> device;
-        res = service->connectDevice(callbacks, i, String16("meeeeeeeee!"),
+        res = service->connectDevice(callbacks, cameraId, String16("meeeeeeeee!"),
                 hardware::ICameraService::USE_CALLING_UID, /*out*/&device);
         EXPECT_TRUE(res.isOk()) << res;
         ASSERT_NE(nullptr, device.get());
@@ -343,12 +354,12 @@
         int32_t torchStatus = listener->getTorchStatus(i);
         if (torchStatus == hardware::ICameraServiceListener::TORCH_STATUS_AVAILABLE_OFF) {
             // Check torch calls
-            res = service->setTorchMode(String16(String8::format("%d", i)),
+            res = service->setTorchMode(cameraId,
                     /*enabled*/true, callbacks);
             EXPECT_TRUE(res.isOk()) << res;
             EXPECT_TRUE(listener->waitForTorchState(
                     hardware::ICameraServiceListener::TORCH_STATUS_AVAILABLE_ON, i));
-            res = service->setTorchMode(String16(String8::format("%d", i)),
+            res = service->setTorchMode(cameraId,
                     /*enabled*/false, callbacks);
             EXPECT_TRUE(res.isOk()) << res;
             EXPECT_TRUE(listener->waitForTorchState(
@@ -370,7 +381,7 @@
     sp<TestCameraServiceListener> serviceListener;
 
     std::pair<sp<TestCameraDeviceCallbacks>, sp<hardware::camera2::ICameraDeviceUser>>
-            openNewDevice(int deviceId) {
+            openNewDevice(const String16& deviceId) {
         sp<TestCameraDeviceCallbacks> callbacks(new TestCameraDeviceCallbacks());
         sp<hardware::camera2::ICameraDeviceUser> device;
         {
@@ -406,7 +417,8 @@
         sp<IBinder> binder = sm->getService(String16("media.camera"));
         service = interface_cast<hardware::ICameraService>(binder);
         serviceListener = new TestCameraServiceListener();
-        service->addListener(serviceListener);
+        std::vector<hardware::CameraStatus> statuses;
+        service->addListener(serviceListener, &statuses);
         service->getNumberOfCameras(hardware::ICameraService::CAMERA_TYPE_BACKWARD_COMPATIBLE,
                 &numCameras);
     }
@@ -426,14 +438,14 @@
     EXPECT_TRUE(serviceListener->waitForNumCameras(numCameras));
     for (int32_t i = 0; i < numCameras; i++) {
         // Make sure we're available, or skip device tests otherwise
-        int32_t s = serviceListener->getStatus(i);
+        String16 cameraId(String8::format("%d",i));
+        int32_t s = serviceListener->getStatus(cameraId);
         EXPECT_EQ(hardware::ICameraServiceListener::STATUS_PRESENT, s);
         if (s != hardware::ICameraServiceListener::STATUS_PRESENT) {
             continue;
         }
         binder::Status res;
-
-        auto p = openNewDevice(i);
+        auto p = openNewDevice(cameraId);
         sp<TestCameraDeviceCallbacks> callbacks = p.first;
         sp<hardware::camera2::ICameraDeviceUser> device = p.second;
 
diff --git a/camera/tests/CameraZSLTests.cpp b/camera/tests/CameraZSLTests.cpp
new file mode 100644
index 0000000..6c91fdc
--- /dev/null
+++ b/camera/tests/CameraZSLTests.cpp
@@ -0,0 +1,292 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_NDEBUG 0
+#define LOG_TAG "CameraZSLTests"
+
+#include <gtest/gtest.h>
+
+#include <binder/ProcessState.h>
+#include <utils/Errors.h>
+#include <utils/Log.h>
+#include <gui/Surface.h>
+#include <gui/SurfaceComposerClient.h>
+#include <camera/CameraParameters.h>
+#include <camera/CameraMetadata.h>
+#include <camera/Camera.h>
+#include <android/hardware/ICameraService.h>
+
+using namespace android;
+using namespace android::hardware;
+
+class CameraZSLTests : public ::testing::Test,
+    public ::android::hardware::BnCameraClient {
+protected:
+
+    CameraZSLTests() : numCameras(0), mPreviewBufferCount(0),
+    mAutoFocusMessage(false), mSnapshotNotification(false) {}
+
+    //Gtest interface
+    void SetUp() override;
+    void TearDown() override;
+
+    //CameraClient interface
+    void notifyCallback(int32_t msgType, int32_t, int32_t) override;
+    void dataCallback(int32_t msgType, const sp<IMemory>&,
+            camera_frame_metadata_t *) override;
+    void dataCallbackTimestamp(nsecs_t, int32_t,
+            const sp<IMemory>&) override {};
+    void recordingFrameHandleCallbackTimestamp(nsecs_t,
+            native_handle_t*) override {};
+
+    status_t waitForPreviewStart();
+    status_t waitForEvent(Mutex &mutex, Condition &condition, bool &flag);
+
+    mutable Mutex mPreviewLock;
+    mutable Condition mPreviewCondition;
+    mutable Mutex mAutoFocusLock;
+    mutable Condition mAutoFocusCondition;
+    mutable Mutex mSnapshotLock;
+    mutable Condition mSnapshotCondition;
+
+    int32_t numCameras;
+    size_t mPreviewBufferCount;
+    sp<ICameraService> mCameraService;
+    sp<SurfaceComposerClient> mComposerClient;
+    bool mAutoFocusMessage;
+    bool mSnapshotNotification;
+    static const int32_t kPreviewThreshold  = 8;
+    static const nsecs_t kPreviewTimeout    = 5000000000;  // 5 [s.]
+    static const nsecs_t kEventTimeout      = 10000000000; // 10 [s.]
+};
+
+void CameraZSLTests::SetUp() {
+    ::android::binder::Status rc;
+    ProcessState::self()->startThreadPool();
+    sp<IServiceManager> sm = defaultServiceManager();
+    sp<IBinder> binder = sm->getService(String16("media.camera"));
+    mCameraService = interface_cast<ICameraService>(binder);
+    rc = mCameraService->getNumberOfCameras(
+            hardware::ICameraService::CAMERA_TYPE_ALL, &numCameras);
+    EXPECT_TRUE(rc.isOk());
+
+    mComposerClient = new SurfaceComposerClient;
+    ASSERT_EQ(NO_ERROR, mComposerClient->initCheck());
+}
+
+void CameraZSLTests::TearDown() {
+    mCameraService.clear();
+    mComposerClient->dispose();
+}
+
+void CameraZSLTests::notifyCallback(int32_t msgType, int32_t,
+        int32_t) {
+    if (CAMERA_MSG_FOCUS == msgType) {
+        Mutex::Autolock l(mAutoFocusLock);
+        mAutoFocusMessage = true;
+        mAutoFocusCondition.broadcast();
+    } else {
+        ALOGV("%s: msgType: %d", __FUNCTION__, msgType);
+    }
+};
+
+void CameraZSLTests::dataCallback(int32_t msgType, const sp<IMemory>& /*data*/,
+        camera_frame_metadata_t *) {
+
+    switch (msgType) {
+    case CAMERA_MSG_PREVIEW_FRAME: {
+        Mutex::Autolock l(mPreviewLock);
+        mPreviewBufferCount++;
+        mPreviewCondition.broadcast();
+        break;
+    }
+    case CAMERA_MSG_COMPRESSED_IMAGE: {
+        Mutex::Autolock l(mSnapshotLock);
+        mSnapshotNotification = true;
+        //TODO: Add checks on incoming Jpeg
+        mSnapshotCondition.broadcast();
+        break;
+    }
+    default:
+        ALOGV("%s: msgType: %d", __FUNCTION__, msgType);
+    }
+};
+
+status_t CameraZSLTests::waitForPreviewStart() {
+    status_t rc = NO_ERROR;
+    Mutex::Autolock l(mPreviewLock);
+    mPreviewBufferCount = 0;
+
+    while (mPreviewBufferCount < kPreviewThreshold) {
+        rc = mPreviewCondition.waitRelative(mPreviewLock,
+                kPreviewTimeout);
+        if (NO_ERROR != rc) {
+            break;
+        }
+    }
+
+    return rc;
+}
+
+status_t CameraZSLTests::waitForEvent(Mutex &mutex,
+        Condition &condition, bool &flag) {
+    status_t rc = NO_ERROR;
+    Mutex::Autolock l(mutex);
+    flag = false;
+
+    while (!flag) {
+        rc = condition.waitRelative(mutex,
+                kEventTimeout);
+        if (NO_ERROR != rc) {
+            break;
+        }
+    }
+
+    return rc;
+}
+
+TEST_F(CameraZSLTests, TestAllPictureSizes) {
+    ::android::binder::Status rc;
+
+    for (int32_t cameraId = 0; cameraId < numCameras; cameraId++) {
+        sp<Surface> previewSurface;
+        sp<SurfaceControl> surfaceControl;
+        sp<ICamera> cameraDevice;
+
+        String16 cameraIdStr = String16(String8::format("%d", cameraId));
+        bool isSupported = false;
+        rc = mCameraService->supportsCameraApi(cameraIdStr,
+                hardware::ICameraService::API_VERSION_1, &isSupported);
+        EXPECT_TRUE(rc.isOk());
+
+        // We only care about camera Camera1 ZSL support.
+        if (!isSupported) {
+            continue;
+        }
+
+        CameraMetadata metadata;
+        rc = mCameraService->getCameraCharacteristics(cameraIdStr, &metadata);
+        if (!rc.isOk()) {
+            // The test is relevant only for cameras with Hal 3.x
+            // support.
+            continue;
+        }
+        EXPECT_FALSE(metadata.isEmpty());
+        camera_metadata_entry_t availableCapabilities =
+                metadata.find(ANDROID_REQUEST_AVAILABLE_CAPABILITIES);
+        EXPECT_TRUE(0 < availableCapabilities.count);
+        bool isReprocessSupported = false;
+        const uint8_t *caps = availableCapabilities.data.u8;
+        for (size_t i = 0; i < availableCapabilities.count; i++) {
+            if (ANDROID_REQUEST_AVAILABLE_CAPABILITIES_PRIVATE_REPROCESSING ==
+                caps[i]) {
+                isReprocessSupported = true;
+                break;
+            }
+        }
+        if (!isReprocessSupported) {
+            // ZSL relies on this feature
+            continue;
+        }
+
+        rc = mCameraService->connect(this, cameraId,
+                String16("ZSLTest"), hardware::ICameraService::USE_CALLING_UID,
+                hardware::ICameraService::USE_CALLING_PID, &cameraDevice);
+        EXPECT_TRUE(rc.isOk());
+
+        CameraParameters params(cameraDevice->getParameters());
+
+        String8 focusModes(params.get(
+                CameraParameters::KEY_SUPPORTED_FOCUS_MODES));
+        bool isAFSupported = false;
+        const char *focusMode = nullptr;
+        if (focusModes.contains(CameraParameters::FOCUS_MODE_AUTO)) {
+            // If supported 'auto' should be set by default
+            isAFSupported = true;
+        } else if (focusModes.contains(
+                CameraParameters::FOCUS_MODE_CONTINUOUS_PICTURE)) {
+            isAFSupported = true;
+            focusMode = CameraParameters::FOCUS_MODE_CONTINUOUS_PICTURE;
+        } else if (focusModes.contains(
+                CameraParameters::FOCUS_MODE_CONTINUOUS_VIDEO)) {
+            isAFSupported = true;
+            focusMode = CameraParameters::FOCUS_MODE_CONTINUOUS_VIDEO;
+        } else if (focusModes.contains(CameraParameters::FOCUS_MODE_MACRO)) {
+            isAFSupported = true;
+            focusMode = CameraParameters::FOCUS_MODE_MACRO;
+        }
+
+        if (!isAFSupported) {
+            // AF state is needed
+            continue;
+        }
+
+        if (nullptr != focusMode) {
+            params.set(CameraParameters::KEY_FOCUS_MODE, focusMode);
+            ASSERT_EQ(NO_ERROR, cameraDevice->setParameters(params.flatten()));
+        }
+
+        int previewWidth, previewHeight;
+        params.getPreviewSize(&previewWidth, &previewHeight);
+        ASSERT_TRUE((0 < previewWidth) && (0 < previewHeight));
+
+        surfaceControl = mComposerClient->createSurface(
+                String8("Test Surface"),
+                previewWidth, previewHeight,
+                CameraParameters::previewFormatToEnum(
+                        params.getPreviewFormat()),
+                GRALLOC_USAGE_HW_RENDER);
+
+        ASSERT_TRUE(nullptr != surfaceControl.get());
+        ASSERT_TRUE(surfaceControl->isValid());
+
+        SurfaceComposerClient::openGlobalTransaction();
+        ASSERT_EQ(NO_ERROR, surfaceControl->setLayer(0x7fffffff));
+        ASSERT_EQ(NO_ERROR, surfaceControl->show());
+        SurfaceComposerClient::closeGlobalTransaction();
+
+        previewSurface = surfaceControl->getSurface();
+        ASSERT_TRUE(previewSurface != NULL);
+        ASSERT_EQ(NO_ERROR, cameraDevice->setPreviewTarget(
+                previewSurface->getIGraphicBufferProducer()));
+
+        cameraDevice->setPreviewCallbackFlag(
+                CAMERA_FRAME_CALLBACK_FLAG_CAMCORDER);
+
+        Vector<Size> pictureSizes;
+        params.getSupportedPictureSizes(pictureSizes);
+        for (size_t i = 0; i < pictureSizes.size(); i++) {
+            params.setPictureSize(pictureSizes[i].width,
+                    pictureSizes[i].height);
+            ASSERT_EQ(NO_ERROR, cameraDevice->setParameters(params.flatten()));
+            ASSERT_EQ(NO_ERROR, cameraDevice->startPreview());
+            ASSERT_EQ(NO_ERROR, waitForPreviewStart());
+
+            ASSERT_EQ(NO_ERROR, cameraDevice->autoFocus());
+            ASSERT_EQ(NO_ERROR, waitForEvent(mAutoFocusLock,
+                    mAutoFocusCondition, mAutoFocusMessage));
+
+            ASSERT_EQ(NO_ERROR,
+                    cameraDevice->takePicture(CAMERA_MSG_COMPRESSED_IMAGE));
+            ASSERT_EQ(NO_ERROR, waitForEvent(mSnapshotLock, mSnapshotCondition,
+                    mSnapshotNotification));
+        }
+
+        cameraDevice->stopPreview();
+        rc = cameraDevice->disconnect();
+        EXPECT_TRUE(rc.isOk());
+    }
+}
diff --git a/cmds/screenrecord/EglWindow.cpp b/cmds/screenrecord/EglWindow.cpp
index c16f2ad..5ea0706 100644
--- a/cmds/screenrecord/EglWindow.cpp
+++ b/cmds/screenrecord/EglWindow.cpp
@@ -21,7 +21,6 @@
 #define EGL_EGLEXT_PROTOTYPES
 
 #include <gui/BufferQueue.h>
-#include <gui/GraphicBufferAlloc.h>
 #include <gui/Surface.h>
 
 #include "EglWindow.h"
diff --git a/cmds/screenrecord/Overlay.cpp b/cmds/screenrecord/Overlay.cpp
index 9fd192c..aa800d8 100644
--- a/cmds/screenrecord/Overlay.cpp
+++ b/cmds/screenrecord/Overlay.cpp
@@ -23,7 +23,6 @@
 #include <utils/Log.h>
 
 #include <gui/BufferQueue.h>
-#include <gui/GraphicBufferAlloc.h>
 #include <gui/Surface.h>
 #include <cutils/properties.h>
 #include <utils/misc.h>
@@ -259,6 +258,11 @@
     const char* format = "%T";
     struct tm tm;
 
+    if (mUseMonotonicTimestamps) {
+        snprintf(buf, bufLen, "%" PRId64, monotonicNsec);
+        return;
+    }
+
     // localtime/strftime is not the fastest way to do this, but a trivial
     // benchmark suggests that the cost is negligible.
     int64_t realTime = mStartRealtimeNsecs +
diff --git a/cmds/screenrecord/Overlay.h b/cmds/screenrecord/Overlay.h
index ee3444d..1d8a569 100644
--- a/cmds/screenrecord/Overlay.h
+++ b/cmds/screenrecord/Overlay.h
@@ -37,7 +37,7 @@
  */
 class Overlay : public GLConsumer::FrameAvailableListener, Thread {
 public:
-    Overlay() : Thread(false),
+    Overlay(bool monotonicTimestamps) : Thread(false),
         mThreadResult(UNKNOWN_ERROR),
         mState(UNINITIALIZED),
         mFrameAvailable(false),
@@ -45,7 +45,8 @@
         mStartMonotonicNsecs(0),
         mStartRealtimeNsecs(0),
         mLastFrameNumber(-1),
-        mTotalDroppedFrames(0)
+        mTotalDroppedFrames(0),
+        mUseMonotonicTimestamps(monotonicTimestamps)
         {}
 
     // Creates a thread that performs the overlay.  Pass in the surface that
@@ -151,6 +152,8 @@
     nsecs_t mLastFrameNumber;
     size_t mTotalDroppedFrames;
 
+    bool mUseMonotonicTimestamps;
+
     static const char* kPropertyNames[];
 };
 
diff --git a/cmds/screenrecord/screenrecord.cpp b/cmds/screenrecord/screenrecord.cpp
index 59d5661..6097f01 100644
--- a/cmds/screenrecord/screenrecord.cpp
+++ b/cmds/screenrecord/screenrecord.cpp
@@ -51,6 +51,7 @@
 #include <media/stagefright/MediaErrors.h>
 #include <media/stagefright/MediaMuxer.h>
 #include <media/ICrypto.h>
+#include <media/MediaCodecBuffer.h>
 
 #include "screenrecord.h"
 #include "Overlay.h"
@@ -68,6 +69,7 @@
 // Command-line parameters.
 static bool gVerbose = false;           // chatty on stdout
 static bool gRotate = false;            // rotate 90 degrees
+static bool gMonotonicTime = false;     // use system monotonic time for timestamps
 static enum {
     FORMAT_MP4, FORMAT_H264, FORMAT_FRAMES, FORMAT_RAW_FRAMES
 } gOutputFormat = FORMAT_MP4;           // data format for output
@@ -327,7 +329,7 @@
 
     assert((rawFp == NULL && muxer != NULL) || (rawFp != NULL && muxer == NULL));
 
-    Vector<sp<ABuffer> > buffers;
+    Vector<sp<MediaCodecBuffer> > buffers;
     err = encoder->getOutputBuffers(&buffers);
     if (err != NO_ERROR) {
         fprintf(stderr, "Unable to get output buffers (err=%d)\n", err);
@@ -410,7 +412,10 @@
                     // want to queue these up and do them on a different thread.
                     ATRACE_NAME("write sample");
                     assert(trackIdx != -1);
-                    err = muxer->writeSampleData(buffers[bufIndex], trackIdx,
+                    // TODO
+                    sp<ABuffer> buffer = new ABuffer(
+                            buffers[bufIndex]->data(), buffers[bufIndex]->size());
+                    err = muxer->writeSampleData(buffer, trackIdx,
                             ptsUsec, flags);
                     if (err != NO_ERROR) {
                         fprintf(stderr,
@@ -609,7 +614,7 @@
     sp<Overlay> overlay;
     if (gWantFrameTime) {
         // Send virtual display frames to an external texture.
-        overlay = new Overlay();
+        overlay = new Overlay(gMonotonicTime);
         err = overlay->start(encoderInputSurface, &bufferProducer);
         if (err != NO_ERROR) {
             if (encoder != NULL) encoder->release();
@@ -892,6 +897,7 @@
         { "show-frame-time",    no_argument,        NULL, 'f' },
         { "rotate",             no_argument,        NULL, 'r' },
         { "output-format",      required_argument,  NULL, 'o' },
+        { "monotonic-time",     no_argument,        NULL, 'm' },
         { NULL,                 0,                  NULL, 0 }
     };
 
@@ -971,6 +977,9 @@
                 return 2;
             }
             break;
+        case 'm':
+            gMonotonicTime = true;
+            break;
         default:
             if (ic != '?') {
                 fprintf(stderr, "getopt_long returned unexpected value 0x%x\n", ic);
diff --git a/cmds/stagefright/Android.mk b/cmds/stagefright/Android.mk
index f8c8d3d..ff5e5d3 100644
--- a/cmds/stagefright/Android.mk
+++ b/cmds/stagefright/Android.mk
@@ -3,22 +3,23 @@
 include $(CLEAR_VARS)
 
 LOCAL_SRC_FILES:=       \
-	stagefright.cpp \
-	jpeg.cpp	\
-	SineSource.cpp
+        stagefright.cpp \
+        jpeg.cpp        \
+        SineSource.cpp
 
 LOCAL_SHARED_LIBRARIES := \
-	libstagefright libmedia libutils libbinder libstagefright_foundation \
-	libjpeg libgui libcutils liblog
+        libstagefright libmedia libutils libbinder libstagefright_foundation \
+        libjpeg libgui libcutils liblog \
+        libhidlmemory \
+        android.hardware.media.omx@1.0 \
 
 LOCAL_C_INCLUDES:= \
-	frameworks/av/media/libstagefright \
-	frameworks/av/media/libstagefright/include \
-	$(TOP)/frameworks/native/include/media/openmax \
-	external/jpeg \
+        frameworks/av/media/libstagefright \
+        frameworks/av/media/libstagefright/include \
+        $(TOP)/frameworks/native/include/media/openmax \
+        external/jpeg \
 
 LOCAL_CFLAGS += -Wno-multichar -Werror -Wall
-LOCAL_CLANG := true
 
 LOCAL_MODULE_TAGS := optional
 
@@ -31,19 +32,18 @@
 include $(CLEAR_VARS)
 
 LOCAL_SRC_FILES:=         \
-	SineSource.cpp    \
-	record.cpp
+        SineSource.cpp    \
+        record.cpp
 
 LOCAL_SHARED_LIBRARIES := \
-	libstagefright libmedia liblog libutils libbinder libstagefright_foundation
+        libstagefright libmedia liblog libutils libbinder libstagefright_foundation
 
 LOCAL_C_INCLUDES:= \
-	frameworks/av/media/libstagefright \
-	$(TOP)/frameworks/native/include/media/openmax \
-	$(TOP)/frameworks/native/include/media/hardware
+        frameworks/av/media/libstagefright \
+        $(TOP)/frameworks/native/include/media/openmax \
+        $(TOP)/frameworks/native/include/media/hardware
 
 LOCAL_CFLAGS += -Wno-multichar -Werror -Wall
-LOCAL_CLANG := true
 
 LOCAL_MODULE_TAGS := optional
 
@@ -56,19 +56,18 @@
 include $(CLEAR_VARS)
 
 LOCAL_SRC_FILES:=         \
-	SineSource.cpp    \
-	recordvideo.cpp
+        SineSource.cpp    \
+        recordvideo.cpp
 
 LOCAL_SHARED_LIBRARIES := \
-	libstagefright libmedia liblog libutils libbinder libstagefright_foundation
+        libstagefright libmedia liblog libutils libbinder libstagefright_foundation
 
 LOCAL_C_INCLUDES:= \
-	frameworks/av/media/libstagefright \
-	$(TOP)/frameworks/native/include/media/openmax \
-	$(TOP)/frameworks/native/include/media/hardware
+        frameworks/av/media/libstagefright \
+        $(TOP)/frameworks/native/include/media/openmax \
+        $(TOP)/frameworks/native/include/media/hardware
 
 LOCAL_CFLAGS += -Wno-multichar -Werror -Wall
-LOCAL_CLANG := true
 
 LOCAL_MODULE_TAGS := optional
 
@@ -82,18 +81,17 @@
 include $(CLEAR_VARS)
 
 LOCAL_SRC_FILES:=         \
-	SineSource.cpp    \
-	audioloop.cpp
+        SineSource.cpp    \
+        audioloop.cpp
 
 LOCAL_SHARED_LIBRARIES := \
-	libstagefright libmedia liblog libutils libbinder libstagefright_foundation
+        libstagefright libmedia liblog libutils libbinder libstagefright_foundation
 
 LOCAL_C_INCLUDES:= \
-	frameworks/av/media/libstagefright \
-	$(TOP)/frameworks/native/include/media/openmax
+        frameworks/av/media/libstagefright \
+        $(TOP)/frameworks/native/include/media/openmax
 
 LOCAL_CFLAGS += -Wno-multichar -Werror -Wall
-LOCAL_CLANG := true
 
 LOCAL_MODULE_TAGS := optional
 
@@ -109,15 +107,14 @@
         stream.cpp    \
 
 LOCAL_SHARED_LIBRARIES := \
-	libstagefright liblog libutils libbinder libgui \
-	libstagefright_foundation libmedia libcutils
+        libstagefright liblog libutils libbinder libgui \
+        libstagefright_foundation libmedia libcutils
 
 LOCAL_C_INCLUDES:= \
-	frameworks/av/media/libstagefright \
-	$(TOP)/frameworks/native/include/media/openmax
+        frameworks/av/media/libstagefright \
+        $(TOP)/frameworks/native/include/media/openmax
 
 LOCAL_CFLAGS += -Wno-multichar -Werror -Wall
-LOCAL_CLANG := true
 
 LOCAL_MODULE_TAGS := optional
 
@@ -129,44 +126,19 @@
 
 include $(CLEAR_VARS)
 
-LOCAL_SRC_FILES:=         \
-	sf2.cpp    \
-
-LOCAL_SHARED_LIBRARIES := \
-	libstagefright liblog libutils libbinder libstagefright_foundation \
-	libmedia libgui libcutils
-
-LOCAL_C_INCLUDES:= \
-	frameworks/av/media/libstagefright \
-	$(TOP)/frameworks/native/include/media/openmax
-
-LOCAL_CFLAGS += -Wno-multichar -Werror -Wall
-LOCAL_CLANG := true
-
-LOCAL_MODULE_TAGS := optional
-
-LOCAL_MODULE:= sf2
-
-include $(BUILD_EXECUTABLE)
-
-################################################################################
-
-include $(CLEAR_VARS)
-
 LOCAL_SRC_FILES:=               \
-	codec.cpp               \
-	SimplePlayer.cpp        \
+        codec.cpp               \
+        SimplePlayer.cpp        \
 
 LOCAL_SHARED_LIBRARIES := \
-	libstagefright liblog libutils libbinder libstagefright_foundation \
-	libmedia libaudioclient libgui libcutils
+        libstagefright liblog libutils libbinder libstagefright_foundation \
+        libmedia libaudioclient libgui libcutils
 
 LOCAL_C_INCLUDES:= \
-	frameworks/av/media/libstagefright \
-	$(TOP)/frameworks/native/include/media/openmax
+        frameworks/av/media/libstagefright \
+        $(TOP)/frameworks/native/include/media/openmax
 
 LOCAL_CFLAGS += -Wno-multichar -Werror -Wall
-LOCAL_CLANG := true
 
 LOCAL_MODULE_TAGS := optional
 
@@ -179,36 +151,35 @@
 include $(CLEAR_VARS)
 
 LOCAL_SRC_FILES:= \
-	filters/argbtorgba.rs \
-	filters/nightvision.rs \
-	filters/saturation.rs \
-	mediafilter.cpp \
+        filters/argbtorgba.rs \
+        filters/nightvision.rs \
+        filters/saturation.rs \
+        mediafilter.cpp \
 
 LOCAL_SHARED_LIBRARIES := \
-	libstagefright \
-	liblog \
-	libutils \
-	libbinder \
-	libstagefright_foundation \
-	libmedia \
-	libgui \
-	libcutils \
-	libRScpp \
+        libstagefright \
+        liblog \
+        libutils \
+        libbinder \
+        libstagefright_foundation \
+        libmedia \
+        libgui \
+        libcutils \
+        libRScpp \
 
 LOCAL_C_INCLUDES:= \
-	$(TOP)/frameworks/av/media/libstagefright \
-	$(TOP)/frameworks/native/include/media/openmax \
-	$(TOP)/frameworks/rs/cpp \
-	$(TOP)/frameworks/rs \
+        $(TOP)/frameworks/av/media/libstagefright \
+        $(TOP)/frameworks/native/include/media/openmax \
+        $(TOP)/frameworks/rs/cpp \
+        $(TOP)/frameworks/rs \
 
 intermediates := $(call intermediates-dir-for,STATIC_LIBRARIES,libRS,TARGET,)
 LOCAL_C_INCLUDES += $(intermediates)
 
 LOCAL_STATIC_LIBRARIES:= \
-	libstagefright_mediafilter
+        libstagefright_mediafilter
 
 LOCAL_CFLAGS += -Wno-multichar -Werror -Wall
-LOCAL_CLANG := true
 
 LOCAL_MODULE_TAGS := optional
 
@@ -221,18 +192,17 @@
 include $(CLEAR_VARS)
 
 LOCAL_SRC_FILES:=               \
-	muxer.cpp            \
+        muxer.cpp            \
 
 LOCAL_SHARED_LIBRARIES := \
-	libstagefright liblog libutils libbinder libstagefright_foundation \
-	libcutils libc
+        libstagefright liblog libutils libbinder libstagefright_foundation \
+        libcutils libc
 
 LOCAL_C_INCLUDES:= \
-	frameworks/av/media/libstagefright \
-	$(TOP)/frameworks/native/include/media/openmax
+        frameworks/av/media/libstagefright \
+        $(TOP)/frameworks/native/include/media/openmax
 
 LOCAL_CFLAGS += -Wno-multichar -Werror -Wall
-LOCAL_CLANG := true
 
 LOCAL_MODULE_TAGS := optional
 
diff --git a/cmds/stagefright/SimplePlayer.cpp b/cmds/stagefright/SimplePlayer.cpp
index 50913cd..afb7db3 100644
--- a/cmds/stagefright/SimplePlayer.cpp
+++ b/cmds/stagefright/SimplePlayer.cpp
@@ -25,6 +25,7 @@
 #include <media/AudioTrack.h>
 #include <media/ICrypto.h>
 #include <media/IMediaHTTPService.h>
+#include <media/MediaCodecBuffer.h>
 #include <media/stagefright/foundation/ABuffer.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/AMessage.h>
@@ -355,7 +356,7 @@
             err = state->mCodec->dequeueInputBuffer(&index, -1ll);
             CHECK_EQ(err, (status_t)OK);
 
-            const sp<ABuffer> &dstBuffer = state->mBuffers[0].itemAt(index);
+            const sp<MediaCodecBuffer> &dstBuffer = state->mBuffers[0].itemAt(index);
 
             CHECK_LE(srcBuffer->size(), dstBuffer->capacity());
             dstBuffer->setRange(0, srcBuffer->size());
@@ -482,11 +483,13 @@
             state->mAvailInputBufferIndices.erase(
                     state->mAvailInputBufferIndices.begin());
 
-            const sp<ABuffer> &dstBuffer =
+            const sp<MediaCodecBuffer> &dstBuffer =
                 state->mBuffers[0].itemAt(index);
+            sp<ABuffer> abuffer = new ABuffer(dstBuffer->base(), dstBuffer->capacity());
 
-            err = mExtractor->readSampleData(dstBuffer);
+            err = mExtractor->readSampleData(abuffer);
             CHECK_EQ(err, (status_t)OK);
+            dstBuffer->setRange(abuffer->offset(), abuffer->size());
 
             int64_t timeUs;
             CHECK_EQ(mExtractor->getSampleTime(&timeUs), (status_t)OK);
@@ -530,7 +533,7 @@
                     state->mCodec->releaseOutputBuffer(info->mIndex);
                 } else {
                     if (state->mAudioTrack != NULL) {
-                        const sp<ABuffer> &srcBuffer =
+                        const sp<MediaCodecBuffer> &srcBuffer =
                             state->mBuffers[1].itemAt(info->mIndex);
 
                         renderAudio(state, info, srcBuffer);
@@ -597,7 +600,7 @@
 }
 
 void SimplePlayer::renderAudio(
-        CodecState *state, BufferInfo *info, const sp<ABuffer> &buffer) {
+        CodecState *state, BufferInfo *info, const sp<MediaCodecBuffer> &buffer) {
     CHECK(state->mAudioTrack != NULL);
 
     if (state->mAudioTrack->stopped()) {
diff --git a/cmds/stagefright/SimplePlayer.h b/cmds/stagefright/SimplePlayer.h
index 0d8c74a..1269162 100644
--- a/cmds/stagefright/SimplePlayer.h
+++ b/cmds/stagefright/SimplePlayer.h
@@ -25,6 +25,7 @@
 class AudioTrack;
 class IGraphicBufferProducer;
 struct MediaCodec;
+class MediaCodecBuffer;
 struct NuMediaExtractor;
 class Surface;
 
@@ -73,7 +74,7 @@
     {
         sp<MediaCodec> mCodec;
         Vector<sp<ABuffer> > mCSD;
-        Vector<sp<ABuffer> > mBuffers[2];
+        Vector<sp<MediaCodecBuffer> > mBuffers[2];
 
         List<size_t> mAvailInputBufferIndices;
         List<BufferInfo> mAvailOutputBufferInfos;
@@ -101,7 +102,7 @@
     status_t onOutputFormatChanged(size_t trackIndex, CodecState *state);
 
     void renderAudio(
-            CodecState *state, BufferInfo *info, const sp<ABuffer> &buffer);
+            CodecState *state, BufferInfo *info, const sp<MediaCodecBuffer> &buffer);
 
     DISALLOW_EVIL_CONSTRUCTORS(SimplePlayer);
 };
diff --git a/cmds/stagefright/codec.cpp b/cmds/stagefright/codec.cpp
index dae9bbe..3108a67 100644
--- a/cmds/stagefright/codec.cpp
+++ b/cmds/stagefright/codec.cpp
@@ -26,12 +26,12 @@
 #include <media/ICrypto.h>
 #include <media/IMediaHTTPService.h>
 #include <media/IMediaPlayerService.h>
+#include <media/MediaCodecBuffer.h>
 #include <media/stagefright/foundation/ABuffer.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/ALooper.h>
 #include <media/stagefright/foundation/AMessage.h>
 #include <media/stagefright/foundation/AString.h>
-#include <media/stagefright/DataSource.h>
 #include <media/stagefright/MediaCodec.h>
 #include <media/stagefright/MediaCodecList.h>
 #include <media/stagefright/MediaDefs.h>
@@ -56,8 +56,8 @@
 
 struct CodecState {
     sp<MediaCodec> mCodec;
-    Vector<sp<ABuffer> > mInBuffers;
-    Vector<sp<ABuffer> > mOutBuffers;
+    Vector<sp<MediaCodecBuffer> > mInBuffers;
+    Vector<sp<MediaCodecBuffer> > mOutBuffers;
     bool mSignalledInputEOS;
     bool mSawOutputEOS;
     int64_t mNumBuffersDecoded;
@@ -174,10 +174,12 @@
                 if (err == OK) {
                     ALOGV("filling input buffer %zu", index);
 
-                    const sp<ABuffer> &buffer = state->mInBuffers.itemAt(index);
+                    const sp<MediaCodecBuffer> &buffer = state->mInBuffers.itemAt(index);
+                    sp<ABuffer> abuffer = new ABuffer(buffer->base(), buffer->capacity());
 
-                    err = extractor->readSampleData(buffer);
+                    err = extractor->readSampleData(abuffer);
                     CHECK_EQ(err, (status_t)OK);
+                    buffer->setRange(abuffer->offset(), abuffer->size());
 
                     int64_t timeUs;
                     err = extractor->getSampleTime(&timeUs);
@@ -398,8 +400,6 @@
 
     ProcessState::self()->startThreadPool();
 
-    DataSource::RegisterDefaultSniffers();
-
     sp<ALooper> looper = new ALooper;
     looper->start();
 
diff --git a/cmds/stagefright/mediafilter.cpp b/cmds/stagefright/mediafilter.cpp
index d829df0..f219e69 100644
--- a/cmds/stagefright/mediafilter.cpp
+++ b/cmds/stagefright/mediafilter.cpp
@@ -26,10 +26,10 @@
 #include <gui/Surface.h>
 #include <media/ICrypto.h>
 #include <media/IMediaHTTPService.h>
+#include <media/MediaCodecBuffer.h>
 #include <media/stagefright/foundation/ABuffer.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/AMessage.h>
-#include <media/stagefright/DataSource.h>
 #include <media/stagefright/MediaCodec.h>
 #include <media/stagefright/NuMediaExtractor.h>
 #include <media/stagefright/RenderScriptWrapper.h>
@@ -131,8 +131,8 @@
 
 struct CodecState {
     sp<MediaCodec> mCodec;
-    Vector<sp<ABuffer> > mInBuffers;
-    Vector<sp<ABuffer> > mOutBuffers;
+    Vector<sp<MediaCodecBuffer> > mInBuffers;
+    Vector<sp<MediaCodecBuffer> > mOutBuffers;
     bool mSignalledInputEOS;
     bool mSawOutputEOS;
     int64_t mNumBuffersDecoded;
@@ -183,9 +183,9 @@
     }
     size_t outIndex = frame.index;
 
-    const sp<ABuffer> &srcBuffer =
+    const sp<MediaCodecBuffer> &srcBuffer =
         vidState->mOutBuffers.itemAt(outIndex);
-    const sp<ABuffer> &destBuffer =
+    const sp<MediaCodecBuffer> &destBuffer =
         filterState->mInBuffers.itemAt(filterIndex);
 
     sp<AMessage> srcFormat, destFormat;
@@ -532,10 +532,12 @@
                 if (err == OK) {
                     ALOGV("filling input buffer %zu", index);
 
-                    const sp<ABuffer> &buffer = state->mInBuffers.itemAt(index);
+                    const sp<MediaCodecBuffer> &buffer = state->mInBuffers.itemAt(index);
+                    sp<ABuffer> abuffer = new ABuffer(buffer->base(), buffer->capacity());
 
-                    err = extractor->readSampleData(buffer);
+                    err = extractor->readSampleData(abuffer);
                     CHECK(err == OK);
+                    buffer->setRange(abuffer->offset(), abuffer->size());
 
                     int64_t timeUs;
                     err = extractor->getSampleTime(&timeUs);
@@ -735,8 +737,6 @@
 
     ProcessState::self()->startThreadPool();
 
-    DataSource::RegisterDefaultSniffers();
-
     android::sp<ALooper> looper = new ALooper;
     looper->start();
 
diff --git a/cmds/stagefright/muxer.cpp b/cmds/stagefright/muxer.cpp
index 0a3bdf3..4a83a4a 100644
--- a/cmds/stagefright/muxer.cpp
+++ b/cmds/stagefright/muxer.cpp
@@ -29,7 +29,6 @@
 #include <media/stagefright/foundation/ALooper.h>
 #include <media/stagefright/foundation/AMessage.h>
 #include <media/stagefright/foundation/AString.h>
-#include <media/stagefright/DataSource.h>
 #include <media/stagefright/MediaCodec.h>
 #include <media/stagefright/MediaDefs.h>
 #include <media/stagefright/MediaMuxer.h>
@@ -319,9 +318,6 @@
     }
     ProcessState::self()->startThreadPool();
 
-    // Make sure setDataSource() works.
-    DataSource::RegisterDefaultSniffers();
-
     sp<ALooper> looper = new ALooper;
     looper->start();
 
diff --git a/cmds/stagefright/record.cpp b/cmds/stagefright/record.cpp
index 9aa0156..94c2e96 100644
--- a/cmds/stagefright/record.cpp
+++ b/cmds/stagefright/record.cpp
@@ -170,8 +170,6 @@
 int main(int argc, char **argv) {
     android::ProcessState::self()->startThreadPool();
 
-    DataSource::RegisterDefaultSniffers();
-
 #if 1
     if (argc != 3) {
         fprintf(stderr, "usage: %s <filename> <input_color_format>\n", argv[0]);
diff --git a/cmds/stagefright/sf2.cpp b/cmds/stagefright/sf2.cpp
deleted file mode 100644
index 1a4bf08..0000000
--- a/cmds/stagefright/sf2.cpp
+++ /dev/null
@@ -1,682 +0,0 @@
-/*
- * Copyright (C) 2010 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-//#define LOG_NDEBUG 0
-#define LOG_TAG "sf2"
-#include <inttypes.h>
-#include <utils/Log.h>
-
-#include <signal.h>
-
-#include <binder/ProcessState.h>
-
-#include <media/IMediaHTTPService.h>
-
-#include <media/stagefright/foundation/hexdump.h>
-#include <media/stagefright/foundation/ABuffer.h>
-#include <media/stagefright/foundation/ADebug.h>
-#include <media/stagefright/foundation/ALooper.h>
-#include <media/stagefright/foundation/AMessage.h>
-
-#include <media/stagefright/ACodec.h>
-#include <media/stagefright/DataSource.h>
-#include <media/stagefright/MediaBuffer.h>
-#include <media/stagefright/MediaDefs.h>
-#include <media/stagefright/MediaExtractor.h>
-#include <media/stagefright/MediaSource.h>
-#include <media/stagefright/MetaData.h>
-#include <media/stagefright/Utils.h>
-
-#include <gui/SurfaceComposerClient.h>
-#include <gui/Surface.h>
-
-#include "include/ESDS.h"
-
-using namespace android;
-
-volatile static bool ctrlc = false;
-
-static sighandler_t oldhandler = NULL;
-
-static void mysighandler(int signum) {
-    if (signum == SIGINT) {
-        ctrlc = true;
-        return;
-    }
-    oldhandler(signum);
-}
-
-struct Controller : public AHandler {
-    Controller(const char *uri, bool decodeAudio,
-               const sp<Surface> &surface, bool renderToSurface)
-        : mURI(uri),
-          mDecodeAudio(decodeAudio),
-          mSurface(surface),
-          mRenderToSurface(renderToSurface),
-          mCodec(new ACodec),
-          mIsVorbis(false) {
-        CHECK(!mDecodeAudio || mSurface == NULL);
-    }
-
-    void startAsync() {
-        (new AMessage(kWhatStart, this))->post();
-    }
-
-protected:
-    virtual ~Controller() {
-    }
-
-    virtual void printStatistics() {
-        int64_t delayUs = ALooper::GetNowUs() - mStartTimeUs;
-
-        if (mDecodeAudio) {
-            printf("%" PRId64 " bytes received. %.2f KB/sec\n",
-            mTotalBytesReceived,
-            mTotalBytesReceived * 1E6 / 1024 / delayUs);
-        } else {
-            printf("%d frames decoded, %.2f fps. %" PRId64 " bytes "
-                    "received. %.2f KB/sec\n",
-            mNumOutputBuffersReceived,
-            mNumOutputBuffersReceived * 1E6 / delayUs,
-            mTotalBytesReceived,
-            mTotalBytesReceived * 1E6 / 1024 / delayUs);
-        }
-    }
-
-    virtual void onMessageReceived(const sp<AMessage> &msg) {
-        if (ctrlc) {
-            printf("\n");
-            printStatistics();
-            (new AMessage(kWhatStop, this))->post();
-            ctrlc = false;
-        }
-        switch (msg->what()) {
-            case kWhatStart:
-            {
-#if 1
-                mDecodeLooper = looper();
-#else
-                mDecodeLooper = new ALooper;
-                mDecodeLooper->setName("sf2 decode looper");
-                mDecodeLooper->start();
-#endif
-
-                sp<DataSource> dataSource =
-                    DataSource::CreateFromURI(
-                            NULL /* httpService */, mURI.c_str());
-
-                sp<IMediaExtractor> extractor =
-                    MediaExtractor::Create(dataSource);
-
-                for (size_t i = 0; i < extractor->countTracks(); ++i) {
-                    sp<MetaData> meta = extractor->getTrackMetaData(i);
-
-                    const char *mime;
-                    CHECK(meta->findCString(kKeyMIMEType, &mime));
-
-                    if (!strncasecmp(mDecodeAudio ? "audio/" : "video/",
-                                     mime, 6)) {
-                        mSource = extractor->getTrack(i);
-
-                        if (!strcasecmp(mime, MEDIA_MIMETYPE_AUDIO_VORBIS)) {
-                            mIsVorbis = true;
-                        } else {
-                            mIsVorbis = false;
-                        }
-                        break;
-                    }
-                }
-                if (mSource == NULL) {
-                    printf("no %s track found\n", mDecodeAudio ? "audio" : "video");
-                    exit (1);
-                }
-
-                CHECK_EQ(mSource->start(), (status_t)OK);
-
-                mDecodeLooper->registerHandler(mCodec);
-
-                mCodec->setNotificationMessage(
-                        new AMessage(kWhatCodecNotify, this));
-
-                sp<AMessage> format = makeFormat(mSource->getFormat());
-
-                if (mSurface != NULL) {
-                    format->setObject("surface", mSurface);
-                }
-
-                mCodec->initiateSetup(format);
-
-                mCSDIndex = 0;
-                mStartTimeUs = ALooper::GetNowUs();
-                mNumOutputBuffersReceived = 0;
-                mTotalBytesReceived = 0;
-                mLeftOverBuffer = NULL;
-                mFinalResult = OK;
-                mSeekState = SEEK_NONE;
-
-                // (new AMessage(kWhatSeek, this))->post(5000000ll);
-                break;
-            }
-
-            case kWhatSeek:
-            {
-                printf("+");
-                fflush(stdout);
-
-                CHECK(mSeekState == SEEK_NONE
-                        || mSeekState == SEEK_FLUSH_COMPLETED);
-
-                if (mLeftOverBuffer != NULL) {
-                    mLeftOverBuffer->release();
-                    mLeftOverBuffer = NULL;
-                }
-
-                mSeekState = SEEK_FLUSHING;
-                mSeekTimeUs = 30000000ll;
-
-                mCodec->signalFlush();
-                break;
-            }
-
-            case kWhatStop:
-            {
-                if (mLeftOverBuffer != NULL) {
-                    mLeftOverBuffer->release();
-                    mLeftOverBuffer = NULL;
-                }
-
-                CHECK_EQ(mSource->stop(), (status_t)OK);
-                mSource.clear();
-
-                mCodec->initiateShutdown();
-                break;
-            }
-
-            case kWhatCodecNotify:
-            {
-                int32_t what;
-                CHECK(msg->findInt32("what", &what));
-
-                if (what == CodecBase::kWhatFillThisBuffer) {
-                    onFillThisBuffer(msg);
-                } else if (what == CodecBase::kWhatDrainThisBuffer) {
-                    if ((mNumOutputBuffersReceived++ % 16) == 0) {
-                        printf(".");
-                        fflush(stdout);
-                    }
-
-                    onDrainThisBuffer(msg);
-                } else if (what == CodecBase::kWhatEOS
-                        || what == CodecBase::kWhatError) {
-                    printf((what == CodecBase::kWhatEOS) ? "$\n" : "E\n");
-
-                    printStatistics();
-                    (new AMessage(kWhatStop, this))->post();
-                } else if (what == CodecBase::kWhatFlushCompleted) {
-                    mSeekState = SEEK_FLUSH_COMPLETED;
-                    mCodec->signalResume();
-
-                    (new AMessage(kWhatSeek, this))->post(5000000ll);
-                } else if (what == CodecBase::kWhatOutputFormatChanged) {
-                } else if (what == CodecBase::kWhatShutdownCompleted) {
-                    mDecodeLooper->unregisterHandler(mCodec->id());
-
-                    if (mDecodeLooper != looper()) {
-                        mDecodeLooper->stop();
-                    }
-
-                    looper()->stop();
-                }
-                break;
-            }
-
-            default:
-                TRESPASS();
-                break;
-        }
-    }
-
-private:
-    enum {
-        kWhatStart             = 'strt',
-        kWhatStop              = 'stop',
-        kWhatCodecNotify       = 'noti',
-        kWhatSeek              = 'seek',
-    };
-
-    sp<ALooper> mDecodeLooper;
-
-    AString mURI;
-    bool mDecodeAudio;
-    sp<Surface> mSurface;
-    bool mRenderToSurface;
-    sp<ACodec> mCodec;
-    sp<IMediaSource> mSource;
-    bool mIsVorbis;
-
-    Vector<sp<ABuffer> > mCSD;
-    size_t mCSDIndex;
-
-    MediaBuffer *mLeftOverBuffer;
-    status_t mFinalResult;
-
-    int64_t mStartTimeUs;
-    int32_t mNumOutputBuffersReceived;
-    int64_t mTotalBytesReceived;
-
-    enum SeekState {
-        SEEK_NONE,
-        SEEK_FLUSHING,
-        SEEK_FLUSH_COMPLETED,
-    };
-    SeekState mSeekState;
-    int64_t mSeekTimeUs;
-
-    sp<AMessage> makeFormat(const sp<MetaData> &meta) {
-        CHECK(mCSD.isEmpty());
-
-        const char *mime;
-        CHECK(meta->findCString(kKeyMIMEType, &mime));
-
-        sp<AMessage> msg = new AMessage;
-        msg->setString("mime", mime);
-
-        if (!strncasecmp("video/", mime, 6)) {
-            int32_t width, height;
-            CHECK(meta->findInt32(kKeyWidth, &width));
-            CHECK(meta->findInt32(kKeyHeight, &height));
-
-            msg->setInt32("width", width);
-            msg->setInt32("height", height);
-        } else {
-            CHECK(!strncasecmp("audio/", mime, 6));
-
-            int32_t numChannels, sampleRate;
-            CHECK(meta->findInt32(kKeyChannelCount, &numChannels));
-            CHECK(meta->findInt32(kKeySampleRate, &sampleRate));
-
-            msg->setInt32("channel-count", numChannels);
-            msg->setInt32("sample-rate", sampleRate);
-
-            int32_t isADTS;
-            if (meta->findInt32(kKeyIsADTS, &isADTS) && isADTS != 0) {
-                msg->setInt32("is-adts", true);
-            }
-        }
-
-        uint32_t type;
-        const void *data;
-        size_t size;
-        if (meta->findData(kKeyAVCC, &type, &data, &size)) {
-            // Parse the AVCDecoderConfigurationRecord
-
-            const uint8_t *ptr = (const uint8_t *)data;
-
-            CHECK(size >= 7);
-            CHECK_EQ((unsigned)ptr[0], 1u);  // configurationVersion == 1
-            uint8_t profile __unused = ptr[1];
-            uint8_t level __unused = ptr[3];
-
-            // There is decodable content out there that fails the following
-            // assertion, let's be lenient for now...
-            // CHECK((ptr[4] >> 2) == 0x3f);  // reserved
-
-            size_t lengthSize __unused = 1 + (ptr[4] & 3);
-
-            // commented out check below as H264_QVGA_500_NO_AUDIO.3gp
-            // violates it...
-            // CHECK((ptr[5] >> 5) == 7);  // reserved
-
-            size_t numSeqParameterSets = ptr[5] & 31;
-
-            ptr += 6;
-            size -= 6;
-
-            sp<ABuffer> buffer = new ABuffer(1024);
-            buffer->setRange(0, 0);
-
-            for (size_t i = 0; i < numSeqParameterSets; ++i) {
-                CHECK(size >= 2);
-                size_t length = U16_AT(ptr);
-
-                ptr += 2;
-                size -= 2;
-
-                CHECK(size >= length);
-
-                memcpy(buffer->data() + buffer->size(), "\x00\x00\x00\x01", 4);
-                memcpy(buffer->data() + buffer->size() + 4, ptr, length);
-                buffer->setRange(0, buffer->size() + 4 + length);
-
-                ptr += length;
-                size -= length;
-            }
-
-            buffer->meta()->setInt32("csd", true);
-            mCSD.push(buffer);
-
-            buffer = new ABuffer(1024);
-            buffer->setRange(0, 0);
-
-            CHECK(size >= 1);
-            size_t numPictureParameterSets = *ptr;
-            ++ptr;
-            --size;
-
-            for (size_t i = 0; i < numPictureParameterSets; ++i) {
-                CHECK(size >= 2);
-                size_t length = U16_AT(ptr);
-
-                ptr += 2;
-                size -= 2;
-
-                CHECK(size >= length);
-
-                memcpy(buffer->data() + buffer->size(), "\x00\x00\x00\x01", 4);
-                memcpy(buffer->data() + buffer->size() + 4, ptr, length);
-                buffer->setRange(0, buffer->size() + 4 + length);
-
-                ptr += length;
-                size -= length;
-            }
-
-            buffer->meta()->setInt32("csd", true);
-            mCSD.push(buffer);
-
-            msg->setBuffer("csd", buffer);
-        } else if (meta->findData(kKeyESDS, &type, &data, &size)) {
-            ESDS esds((const char *)data, size);
-            CHECK_EQ(esds.InitCheck(), (status_t)OK);
-
-            const void *codec_specific_data;
-            size_t codec_specific_data_size;
-            esds.getCodecSpecificInfo(
-                    &codec_specific_data, &codec_specific_data_size);
-
-            sp<ABuffer> buffer = new ABuffer(codec_specific_data_size);
-
-            memcpy(buffer->data(), codec_specific_data,
-                   codec_specific_data_size);
-
-            buffer->meta()->setInt32("csd", true);
-            mCSD.push(buffer);
-        } else if (meta->findData(kKeyVorbisInfo, &type, &data, &size)) {
-            sp<ABuffer> buffer = new ABuffer(size);
-            memcpy(buffer->data(), data, size);
-
-            buffer->meta()->setInt32("csd", true);
-            mCSD.push(buffer);
-
-            CHECK(meta->findData(kKeyVorbisBooks, &type, &data, &size));
-
-            buffer = new ABuffer(size);
-            memcpy(buffer->data(), data, size);
-
-            buffer->meta()->setInt32("csd", true);
-            mCSD.push(buffer);
-        }
-
-        int32_t maxInputSize;
-        if (meta->findInt32(kKeyMaxInputSize, &maxInputSize)) {
-            msg->setInt32("max-input-size", maxInputSize);
-        }
-
-        return msg;
-    }
-
-    void onFillThisBuffer(const sp<AMessage> &msg) {
-        sp<AMessage> reply;
-        CHECK(msg->findMessage("reply", &reply));
-
-        if (mSource == NULL || mSeekState == SEEK_FLUSHING) {
-            reply->setInt32("err", ERROR_END_OF_STREAM);
-            reply->post();
-            return;
-        }
-
-        sp<ABuffer> outBuffer;
-        CHECK(msg->findBuffer("buffer", &outBuffer));
-
-        if (mCSDIndex < mCSD.size()) {
-            outBuffer = mCSD.editItemAt(mCSDIndex++);
-            outBuffer->meta()->setInt64("timeUs", 0);
-        } else {
-            size_t sizeLeft = outBuffer->capacity();
-            outBuffer->setRange(0, 0);
-
-            int32_t n = 0;
-
-            for (;;) {
-                MediaBuffer *inBuffer;
-
-                if (mLeftOverBuffer != NULL) {
-                    inBuffer = mLeftOverBuffer;
-                    mLeftOverBuffer = NULL;
-                } else if (mFinalResult != OK) {
-                    break;
-                } else {
-                    MediaSource::ReadOptions options;
-                    if (mSeekState == SEEK_FLUSH_COMPLETED) {
-                        options.setSeekTo(mSeekTimeUs);
-                        mSeekState = SEEK_NONE;
-                    }
-                    status_t err = mSource->read(&inBuffer, &options);
-
-                    if (err != OK) {
-                        mFinalResult = err;
-                        break;
-                    }
-                }
-
-                size_t sizeNeeded = inBuffer->range_length();
-                if (mIsVorbis) {
-                    // Vorbis data is suffixed with the number of
-                    // valid samples on the page.
-                    sizeNeeded += sizeof(int32_t);
-                }
-
-                if (sizeNeeded > sizeLeft) {
-                    if (outBuffer->size() == 0) {
-                        ALOGE("Unable to fit even a single input buffer of size %zu.",
-                             sizeNeeded);
-                    }
-                    CHECK_GT(outBuffer->size(), 0u);
-
-                    mLeftOverBuffer = inBuffer;
-                    break;
-                }
-
-                ++n;
-
-                if (outBuffer->size() == 0) {
-                    int64_t timeUs;
-                    CHECK(inBuffer->meta_data()->findInt64(kKeyTime, &timeUs));
-
-                    outBuffer->meta()->setInt64("timeUs", timeUs);
-                }
-
-                memcpy(outBuffer->data() + outBuffer->size(),
-                       (const uint8_t *)inBuffer->data()
-                        + inBuffer->range_offset(),
-                       inBuffer->range_length());
-
-                if (mIsVorbis) {
-                    int32_t numPageSamples;
-                    if (!inBuffer->meta_data()->findInt32(
-                                kKeyValidSamples, &numPageSamples)) {
-                        numPageSamples = -1;
-                    }
-
-                    memcpy(outBuffer->data()
-                            + outBuffer->size() + inBuffer->range_length(),
-                           &numPageSamples, sizeof(numPageSamples));
-                }
-
-                outBuffer->setRange(
-                        0, outBuffer->size() + sizeNeeded);
-
-                sizeLeft -= sizeNeeded;
-
-                inBuffer->release();
-                inBuffer = NULL;
-
-                break;  // Don't coalesce
-            }
-
-            ALOGV("coalesced %d input buffers", n);
-
-            if (outBuffer->size() == 0) {
-                CHECK_NE(mFinalResult, (status_t)OK);
-
-                reply->setInt32("err", mFinalResult);
-                reply->post();
-                return;
-            }
-        }
-
-        reply->setBuffer("buffer", outBuffer);
-        reply->post();
-    }
-
-    void onDrainThisBuffer(const sp<AMessage> &msg) {
-        sp<ABuffer> buffer;
-        CHECK(msg->findBuffer("buffer", &buffer));
-
-        mTotalBytesReceived += buffer->size();
-
-        sp<AMessage> reply;
-        CHECK(msg->findMessage("reply", &reply));
-
-        if (mRenderToSurface) {
-            reply->setInt32("render", 1);
-        }
-
-        reply->post();
-    }
-
-    DISALLOW_EVIL_CONSTRUCTORS(Controller);
-};
-
-static void usage(const char *me) {
-    fprintf(stderr, "usage: %s\n", me);
-    fprintf(stderr, "       -h(elp)\n");
-    fprintf(stderr, "       -a(udio)\n");
-
-    fprintf(stderr,
-            "       -S(urface) Allocate output buffers on a surface.\n"
-            "       -R(ender)  Render surface-allocated buffers.\n");
-}
-
-int main(int argc, char **argv) {
-    android::ProcessState::self()->startThreadPool();
-
-    bool decodeAudio = false;
-    bool useSurface = false;
-    bool renderToSurface = false;
-
-    int res;
-    while ((res = getopt(argc, argv, "haSR")) >= 0) {
-        switch (res) {
-            case 'a':
-                decodeAudio = true;
-                break;
-
-            case 'S':
-                useSurface = true;
-                break;
-
-            case 'R':
-                renderToSurface = true;
-                break;
-
-            case '?':
-            case 'h':
-            default:
-            {
-                usage(argv[0]);
-                return 1;
-            }
-        }
-    }
-
-    argc -= optind;
-    argv += optind;
-
-    if (argc != 1) {
-        usage(argv[-optind]);
-        return 1;
-    }
-
-    DataSource::RegisterDefaultSniffers();
-
-    sp<ALooper> looper = new ALooper;
-    looper->setName("sf2");
-
-    sp<SurfaceComposerClient> composerClient;
-    sp<SurfaceControl> control;
-    sp<Surface> surface;
-
-    if (!decodeAudio && useSurface) {
-        composerClient = new SurfaceComposerClient;
-        CHECK_EQ(composerClient->initCheck(), (status_t)OK);
-
-        control = composerClient->createSurface(
-                String8("A Surface"),
-                1280,
-                800,
-                PIXEL_FORMAT_RGB_565,
-                0);
-
-        CHECK(control != NULL);
-        CHECK(control->isValid());
-
-        SurfaceComposerClient::openGlobalTransaction();
-        CHECK_EQ(control->setLayer(INT_MAX), (status_t)OK);
-        CHECK_EQ(control->show(), (status_t)OK);
-        SurfaceComposerClient::closeGlobalTransaction();
-
-        surface = control->getSurface();
-        CHECK(surface != NULL);
-
-        CHECK_EQ((status_t)OK,
-                 native_window_api_connect(
-                     surface.get(), NATIVE_WINDOW_API_MEDIA));
-    }
-
-    sp<Controller> controller =
-        new Controller(argv[0], decodeAudio, surface, renderToSurface);
-
-    looper->registerHandler(controller);
-
-    signal(SIGINT, mysighandler);
-
-    controller->startAsync();
-
-    CHECK_EQ(looper->start(true /* runOnCallingThread */), (status_t)OK);
-
-    looper->unregisterHandler(controller->id());
-
-    if (!decodeAudio && useSurface) {
-        CHECK_EQ((status_t)OK,
-                 native_window_api_disconnect(
-                     surface.get(), NATIVE_WINDOW_API_MEDIA));
-
-        composerClient->dispose();
-    }
-
-    return 0;
-}
-
diff --git a/cmds/stagefright/stagefright.cpp b/cmds/stagefright/stagefright.cpp
index 2bb35cb..4d8dd3c 100644
--- a/cmds/stagefright/stagefright.cpp
+++ b/cmds/stagefright/stagefright.cpp
@@ -64,6 +64,9 @@
 #include <gui/Surface.h>
 #include <gui/SurfaceComposerClient.h>
 
+#include <android/hardware/media/omx/1.0/IOmx.h>
+#include <media/omx/1.0/WOmx.h>
+
 using namespace android;
 
 static long gNumRepetitions;
@@ -904,13 +907,25 @@
     }
 
     if (listComponents) {
-        sp<IServiceManager> sm = defaultServiceManager();
-        sp<IBinder> binder = sm->getService(String16("media.codec"));
-        sp<IMediaCodecService> service = interface_cast<IMediaCodecService>(binder);
+        sp<IOMX> omx;
+        int32_t trebleOmx = property_get_int32("persist.media.treble_omx", -1);
+        if ((trebleOmx == 1) || ((trebleOmx == -1) &&
+                property_get_bool("persist.hal.binderization", 0))) {
+            using namespace ::android::hardware::media::omx::V1_0;
+            sp<IOmx> tOmx = IOmx::getService();
 
-        CHECK(service.get() != NULL);
+            CHECK(tOmx.get() != NULL);
 
-        sp<IOMX> omx = service->getOMX();
+            omx = new utils::LWOmx(tOmx);
+        } else {
+            sp<IServiceManager> sm = defaultServiceManager();
+            sp<IBinder> binder = sm->getService(String16("media.codec"));
+            sp<IMediaCodecService> service = interface_cast<IMediaCodecService>(binder);
+
+            CHECK(service.get() != NULL);
+
+            omx = service->getOMX();
+        }
         CHECK(omx.get() != NULL);
 
         List<IOMX::ComponentInfo> list;
@@ -965,8 +980,6 @@
         }
     }
 
-    DataSource::RegisterDefaultSniffers();
-
     status_t err = OK;
 
     for (int k = 0; k < argc && err == OK; ++k) {
diff --git a/cmds/stagefright/stream.cpp b/cmds/stagefright/stream.cpp
index 16ff39d..8f9333a 100644
--- a/cmds/stagefright/stream.cpp
+++ b/cmds/stagefright/stream.cpp
@@ -301,8 +301,6 @@
 int main(int argc, char **argv) {
     android::ProcessState::self()->startThreadPool();
 
-    DataSource::RegisterDefaultSniffers();
-
     if (argc != 2) {
         fprintf(stderr, "Usage: %s filename\n", argv[0]);
         return 1;
@@ -349,9 +347,7 @@
 
     sp<IStreamSource> source;
 
-    char prop[PROPERTY_VALUE_MAX];
-    bool usemp4 = property_get("media.stagefright.use-mp4source", prop, NULL) &&
-            (!strcmp(prop, "1") || !strcasecmp(prop, "true"));
+    bool usemp4 = property_get_bool("media.stagefright.use-mp4source", false);
 
     size_t len = strlen(argv[1]);
     if ((!usemp4 && len >= 3 && !strcasecmp(".ts", &argv[1][len - 3])) ||
diff --git a/drm/libdrmframework/plugins/forward-lock/internal-format/doc/FwdLock.html b/drm/libdrmframework/plugins/forward-lock/internal-format/doc/FwdLock.html
old mode 100755
new mode 100644
diff --git a/drm/libmediadrm/Android.mk b/drm/libmediadrm/Android.mk
index 3be1d60..590622e 100644
--- a/drm/libmediadrm/Android.mk
+++ b/drm/libmediadrm/Android.mk
@@ -6,23 +6,53 @@
 
 include $(CLEAR_VARS)
 
-LOCAL_SRC_FILES:= \
-	Crypto.cpp \
-	Drm.cpp \
-	DrmSessionManager.cpp \
-	SharedLibrary.cpp
+LOCAL_AIDL_INCLUDES := \
+    frameworks/av/drm/libmediadrm/aidl
+
+LOCAL_SRC_FILES := \
+    aidl/android/media/ICas.aidl \
+    aidl/android/media/ICasListener.aidl \
+    aidl/android/media/IDescrambler.aidl \
+    aidl/android/media/IMediaCasService.aidl \
+
+LOCAL_SRC_FILES += \
+    CasImpl.cpp \
+    DescramblerImpl.cpp \
+    DrmSessionManager.cpp \
+    ICrypto.cpp \
+    IDrm.cpp \
+    IDrmClient.cpp \
+    IMediaDrmService.cpp \
+    MediaCasDefs.cpp \
+    SharedLibrary.cpp
+ifneq ($(DISABLE_TREBLE_DRM), true)
+LOCAL_SRC_FILES += \
+    DrmHal.cpp \
+    CryptoHal.cpp
+else
+LOCAL_SRC_FILES += \
+    Drm.cpp \
+    Crypto.cpp
+endif
 
 LOCAL_SHARED_LIBRARIES := \
-	libbinder \
-	libcutils \
-	libdl \
-	liblog \
-	libmedia \
-	libstagefright \
-	libutils
+    libbinder \
+    libcutils \
+    libdl \
+    liblog \
+    libmediautils \
+    libstagefright_foundation \
+    libutils
+ifneq ($(DISABLE_TREBLE_DRM), true)
+LOCAL_SHARED_LIBRARIES += \
+    android.hidl.base@1.0 \
+    android.hardware.drm@1.0 \
+    libhidlbase \
+    libhidlmemory \
+    libhidltransport
+endif
 
 LOCAL_CFLAGS += -Werror -Wno-error=deprecated-declarations -Wall
-LOCAL_CLANG := true
 
 LOCAL_MODULE:= libmediadrm
 
diff --git a/drm/libmediadrm/CasImpl.cpp b/drm/libmediadrm/CasImpl.cpp
new file mode 100644
index 0000000..de15244
--- /dev/null
+++ b/drm/libmediadrm/CasImpl.cpp
@@ -0,0 +1,201 @@
+
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+//#define LOG_NDEBUG 0
+#define LOG_TAG "CasImpl"
+
+#include <android/media/ICasListener.h>
+#include <media/cas/CasAPI.h>
+#include <media/CasImpl.h>
+#include <media/SharedLibrary.h>
+#include <utils/Log.h>
+
+namespace android {
+
+static Status getBinderStatus(status_t err) {
+    if (err == OK) {
+        return Status::ok();
+    }
+    if (err == BAD_VALUE) {
+        return Status::fromExceptionCode(Status::EX_ILLEGAL_ARGUMENT);
+    }
+    if (err == INVALID_OPERATION) {
+        return Status::fromExceptionCode(Status::EX_ILLEGAL_STATE);
+    }
+    return Status::fromServiceSpecificError(err);
+}
+
+static String8 sessionIdToString(const CasSessionId &sessionId) {
+    String8 result;
+    for (size_t i = 0; i < sessionId.size(); i++) {
+        result.appendFormat("%02x ", sessionId[i]);
+    }
+    if (result.isEmpty()) {
+        result.append("(null)");
+    }
+    return result;
+}
+
+CasImpl::CasImpl(const sp<ICasListener> &listener)
+    : mPlugin(NULL), mListener(listener) {
+    ALOGV("CTOR: mPlugin=%p", mPlugin);
+}
+
+CasImpl::~CasImpl() {
+    ALOGV("DTOR: mPlugin=%p", mPlugin);
+    release();
+}
+
+//static
+void CasImpl::OnEvent(
+        void *appData,
+        int32_t event,
+        int32_t arg,
+        uint8_t *data,
+        size_t size) {
+    if (appData == NULL) {
+        ALOGE("Invalid appData!");
+        return;
+    }
+    CasImpl *casImpl = static_cast<CasImpl *>(appData);
+    casImpl->onEvent(event, arg, data, size);
+}
+
+void CasImpl::init(const sp<SharedLibrary>& library, CasPlugin *plugin) {
+    mLibrary = library;
+    mPlugin = plugin;
+}
+
+void CasImpl::onEvent(
+        int32_t event, int32_t arg, uint8_t *data, size_t size) {
+    if (mListener == NULL) {
+        return;
+    }
+
+    std::unique_ptr<CasData> eventData;
+    if (data != NULL && size > 0) {
+        eventData.reset(new CasData(data, data + size));
+    }
+
+    mListener->onEvent(event, arg, eventData);
+}
+
+Status CasImpl::setPrivateData(const CasData& pvtData) {
+    ALOGV("setPrivateData");
+    return getBinderStatus(mPlugin->setPrivateData(pvtData));
+}
+
+Status CasImpl::openSession(int32_t program_number, CasSessionId* sessionId) {
+    ALOGV("openSession: program_number=%d", program_number);
+
+    status_t err = mPlugin->openSession(program_number, sessionId);
+
+    ALOGV("openSession: session opened for program_number=%d, sessionId=%s",
+            program_number, sessionIdToString(*sessionId).string());
+
+    return getBinderStatus(err);
+}
+
+Status CasImpl::openSessionForStream(
+        int32_t program_number,
+        int32_t elementary_PID,
+        CasSessionId* sessionId) {
+    ALOGV("openSession: program_number=%d, elementary_PID=%d",
+            program_number, elementary_PID);
+
+    status_t err = mPlugin->openSession(
+            program_number, elementary_PID, sessionId);
+
+    ALOGV("openSession: session opened for "
+            "program_number=%d, elementary_PID=%d, sessionId=%s",
+            program_number, elementary_PID,
+            sessionIdToString(*sessionId).string());
+
+    return getBinderStatus(err);
+}
+
+Status CasImpl::setSessionPrivateData(
+        const CasSessionId &sessionId, const CasData& pvtData) {
+    ALOGV("setSessionPrivateData: sessionId=%s",
+            sessionIdToString(sessionId).string());
+
+    return getBinderStatus(mPlugin->setSessionPrivateData(sessionId, pvtData));
+}
+
+Status CasImpl::closeSession(const CasSessionId &sessionId) {
+    ALOGV("closeSession: sessionId=%s",
+            sessionIdToString(sessionId).string());
+
+    return getBinderStatus(mPlugin->closeSession(sessionId));
+}
+
+Status CasImpl::processEcm(const CasSessionId &sessionId, const ParcelableCasData& ecm) {
+    ALOGV("processEcm: sessionId=%s",
+            sessionIdToString(sessionId).string());
+
+    return getBinderStatus(mPlugin->processEcm(sessionId, ecm));
+}
+
+Status CasImpl::processEmm(const ParcelableCasData& emm) {
+    ALOGV("processEmm");
+
+    return getBinderStatus(mPlugin->processEmm(emm));
+}
+
+Status CasImpl::sendEvent(
+        int32_t event, int32_t arg, const ::std::unique_ptr<CasData> &eventData) {
+    ALOGV("sendEvent");
+
+    status_t err;
+    if (eventData == nullptr) {
+        err = mPlugin->sendEvent(event, arg, CasData());
+    } else {
+        err = mPlugin->sendEvent(event, arg, *eventData);
+    }
+    return getBinderStatus(err);
+}
+
+Status CasImpl::provision(const String16& provisionString) {
+    ALOGV("provision: provisionString=%s", String8(provisionString).string());
+
+    return getBinderStatus(mPlugin->provision(String8(provisionString)));
+}
+
+Status CasImpl::refreshEntitlements(
+        int32_t refreshType, const ::std::unique_ptr<CasData> &refreshData) {
+    ALOGV("refreshEntitlements");
+
+    status_t err;
+    if (refreshData == nullptr) {
+        err = mPlugin->refreshEntitlements(refreshType, CasData());
+    } else {
+        err = mPlugin->refreshEntitlements(refreshType, *refreshData);
+    }
+    return getBinderStatus(err);
+}
+
+Status CasImpl::release() {
+    ALOGV("release: mPlugin=%p", mPlugin);
+
+    if (mPlugin != NULL) {
+        delete mPlugin;
+        mPlugin = NULL;
+    }
+    return Status::ok();
+}
+
+} // namespace android
+
diff --git a/drm/libmediadrm/Crypto.cpp b/drm/libmediadrm/Crypto.cpp
index 79633cb..d93dad6 100644
--- a/drm/libmediadrm/Crypto.cpp
+++ b/drm/libmediadrm/Crypto.cpp
@@ -233,16 +233,12 @@
     return mPlugin->requiresSecureDecoderComponent(mime);
 }
 
-ssize_t Crypto::decrypt(
-        DestinationType dstType,
-        const uint8_t key[16],
-        const uint8_t iv[16],
-        CryptoPlugin::Mode mode,
-        const CryptoPlugin::Pattern &pattern,
-        const sp<IMemory> &sharedBuffer, size_t offset,
+ssize_t Crypto::decrypt(const uint8_t key[16], const uint8_t iv[16],
+        CryptoPlugin::Mode mode, const CryptoPlugin::Pattern &pattern,
+        const sp<IMemory> &source, size_t offset,
         const CryptoPlugin::SubSample *subSamples, size_t numSubSamples,
-        void *dstPtr,
-        AString *errorDetailMsg) {
+        const ICrypto::DestinationBuffer &destination, AString *errorDetailMsg) {
+
     Mutex::Autolock autoLock(mLock);
 
     if (mInitCheck != OK) {
@@ -253,12 +249,21 @@
         return -EINVAL;
     }
 
-    const void *srcPtr = static_cast<uint8_t *>(sharedBuffer->pointer()) + offset;
+    const void *srcPtr = static_cast<uint8_t *>(source->pointer()) + offset;
 
-    return mPlugin->decrypt(
-            dstType != kDestinationTypeVmPointer,
-            key, iv, mode, pattern, srcPtr, subSamples, numSubSamples, dstPtr,
-            errorDetailMsg);
+    void *destPtr;
+    bool secure = false;
+    if (destination.mType == kDestinationTypeNativeHandle) {
+        destPtr = static_cast<void *>(destination.mHandle);
+        secure = true;
+    } else {
+        destPtr = destination.mSharedMemory->pointer();
+    }
+
+    ssize_t result = mPlugin->decrypt(secure, key, iv, mode, pattern, srcPtr, subSamples,
+            numSubSamples, destPtr, errorDetailMsg);
+
+    return result;
 }
 
 void Crypto::notifyResolution(uint32_t width, uint32_t height) {
diff --git a/drm/libmediadrm/CryptoHal.cpp b/drm/libmediadrm/CryptoHal.cpp
new file mode 100644
index 0000000..e77a8ea
--- /dev/null
+++ b/drm/libmediadrm/CryptoHal.cpp
@@ -0,0 +1,376 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "CryptoHal"
+#include <utils/Log.h>
+
+#include <android/hardware/drm/1.0/types.h>
+#include <android/hidl/manager/1.0/IServiceManager.h>
+
+#include <binder/IMemory.h>
+#include <cutils/native_handle.h>
+#include <media/CryptoHal.h>
+#include <media/hardware/CryptoAPI.h>
+#include <media/stagefright/foundation/ADebug.h>
+#include <media/stagefright/foundation/AString.h>
+#include <media/stagefright/foundation/hexdump.h>
+#include <media/stagefright/MediaErrors.h>
+
+using ::android::hardware::drm::V1_0::BufferType;
+using ::android::hardware::drm::V1_0::DestinationBuffer;
+using ::android::hardware::drm::V1_0::ICryptoFactory;
+using ::android::hardware::drm::V1_0::ICryptoPlugin;
+using ::android::hardware::drm::V1_0::Mode;
+using ::android::hardware::drm::V1_0::Pattern;
+using ::android::hardware::drm::V1_0::SharedBuffer;
+using ::android::hardware::drm::V1_0::Status;
+using ::android::hardware::drm::V1_0::SubSample;
+using ::android::hardware::hidl_array;
+using ::android::hardware::hidl_handle;
+using ::android::hardware::hidl_memory;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::hidl::manager::V1_0::IServiceManager;
+using ::android::sp;
+
+
+namespace android {
+
+static status_t toStatusT(Status status) {
+    switch (status) {
+    case Status::OK:
+        return OK;
+    case Status::ERROR_DRM_NO_LICENSE:
+        return ERROR_DRM_NO_LICENSE;
+    case Status::ERROR_DRM_LICENSE_EXPIRED:
+        return ERROR_DRM_LICENSE_EXPIRED;
+    case Status::ERROR_DRM_RESOURCE_BUSY:
+        return ERROR_DRM_RESOURCE_BUSY;
+    case Status::ERROR_DRM_INSUFFICIENT_OUTPUT_PROTECTION:
+        return ERROR_DRM_INSUFFICIENT_OUTPUT_PROTECTION;
+    case Status::ERROR_DRM_SESSION_NOT_OPENED:
+        return ERROR_DRM_SESSION_NOT_OPENED;
+    case Status::ERROR_DRM_CANNOT_HANDLE:
+        return ERROR_DRM_CANNOT_HANDLE;
+    default:
+        return UNKNOWN_ERROR;
+    }
+}
+
+
+static hidl_vec<uint8_t> toHidlVec(const Vector<uint8_t> &vector) {
+    hidl_vec<uint8_t> vec;
+    vec.setToExternal(const_cast<uint8_t *>(vector.array()), vector.size());
+    return vec;
+}
+
+static hidl_vec<uint8_t> toHidlVec(const void *ptr, size_t size) {
+    hidl_vec<uint8_t> vec;
+    vec.resize(size);
+    memcpy(vec.data(), ptr, size);
+    return vec;
+}
+
+static hidl_array<uint8_t, 16> toHidlArray16(const uint8_t *ptr) {
+    if (!ptr) {
+        return hidl_array<uint8_t, 16>();
+    }
+    return hidl_array<uint8_t, 16>(ptr);
+}
+
+
+static String8 toString8(hidl_string hString) {
+    return String8(hString.c_str());
+}
+
+
+CryptoHal::CryptoHal()
+    : mFactories(makeCryptoFactories()),
+      mInitCheck((mFactories.size() == 0) ? ERROR_UNSUPPORTED : NO_INIT),
+      mNextBufferId(0) {
+}
+
+CryptoHal::~CryptoHal() {
+}
+
+Vector<sp<ICryptoFactory>> CryptoHal::makeCryptoFactories() {
+    Vector<sp<ICryptoFactory>> factories;
+
+    auto manager = ::IServiceManager::getService();
+    if (manager != NULL) {
+        manager->listByInterface(ICryptoFactory::descriptor,
+                [&factories](const hidl_vec<hidl_string> &registered) {
+                    for (const auto &instance : registered) {
+                        auto factory = ICryptoFactory::getService(instance);
+                        if (factory != NULL) {
+                            factories.push_back(factory);
+                            ALOGI("makeCryptoFactories: factory instance %s is %s",
+                                    instance.c_str(),
+                                    factory->isRemote() ? "Remote" : "Not Remote");
+                        }
+                    }
+                }
+            );
+    }
+
+    if (factories.size() == 0) {
+        // must be in passthrough mode, load the default passthrough service
+        auto passthrough = ICryptoFactory::getService("crypto");
+        if (passthrough != NULL) {
+            ALOGI("makeCryptoFactories: using default crypto instance");
+            factories.push_back(passthrough);
+        } else {
+            ALOGE("Failed to find any crypto factories");
+        }
+    }
+    return factories;
+}
+
+sp<ICryptoPlugin> CryptoHal::makeCryptoPlugin(const sp<ICryptoFactory>& factory,
+        const uint8_t uuid[16], const void *initData, size_t initDataSize) {
+
+    sp<ICryptoPlugin> plugin;
+    Return<void> hResult = factory->createPlugin(toHidlArray16(uuid),
+            toHidlVec(initData, initDataSize),
+            [&](Status status, const sp<ICryptoPlugin>& hPlugin) {
+                if (status != Status::OK) {
+                    ALOGE("Failed to make crypto plugin");
+                    return;
+                }
+                plugin = hPlugin;
+            }
+        );
+    return plugin;
+}
+
+
+status_t CryptoHal::initCheck() const {
+    return mInitCheck;
+}
+
+
+bool CryptoHal::isCryptoSchemeSupported(const uint8_t uuid[16]) {
+    Mutex::Autolock autoLock(mLock);
+
+    for (size_t i = 0; i < mFactories.size(); i++) {
+        if (mFactories[i]->isCryptoSchemeSupported(uuid)) {
+            return true;
+        }
+    }
+    return false;
+}
+
+status_t CryptoHal::createPlugin(const uint8_t uuid[16], const void *data,
+        size_t size) {
+    Mutex::Autolock autoLock(mLock);
+
+    for (size_t i = 0; i < mFactories.size(); i++) {
+        if (mFactories[i]->isCryptoSchemeSupported(uuid)) {
+            mPlugin = makeCryptoPlugin(mFactories[i], uuid, data, size);
+        }
+    }
+
+    if (mPlugin == NULL) {
+        mInitCheck = ERROR_UNSUPPORTED;
+    } else {
+        mInitCheck = OK;
+    }
+
+    return mInitCheck;
+}
+
+status_t CryptoHal::destroyPlugin() {
+    Mutex::Autolock autoLock(mLock);
+
+    if (mInitCheck != OK) {
+        return mInitCheck;
+    }
+
+    mPlugin.clear();
+    return OK;
+}
+
+bool CryptoHal::requiresSecureDecoderComponent(const char *mime) const {
+    Mutex::Autolock autoLock(mLock);
+
+    if (mInitCheck != OK) {
+        return mInitCheck;
+    }
+
+    return mPlugin->requiresSecureDecoderComponent(hidl_string(mime));
+}
+
+
+/**
+ * If the heap base isn't set, get the heap base from the IMemory
+ * and send it to the HAL so it can map a remote heap of the same
+ * size.  Once the heap base is established, shared memory buffers
+ * are sent by providing an offset into the heap and a buffer size.
+ */
+void CryptoHal::setHeapBase(const sp<IMemoryHeap>& heap) {
+    native_handle_t* nativeHandle = native_handle_create(1, 0);
+    if (!nativeHandle) {
+        ALOGE("setSharedBufferBase(), failed to create native handle");
+        return;
+    }
+    if (heap == NULL) {
+        ALOGE("setSharedBufferBase(): heap is NULL");
+        return;
+    }
+    int fd = heap->getHeapID();
+    nativeHandle->data[0] = fd;
+    auto hidlHandle = hidl_handle(nativeHandle);
+    auto hidlMemory = hidl_memory("ashmem", hidlHandle, heap->getSize());
+    mHeapBases.add(heap->getBase(), mNextBufferId);
+    Return<void> hResult = mPlugin->setSharedBufferBase(hidlMemory, mNextBufferId++);
+    ALOGE_IF(!hResult.isOk(), "setSharedBufferBase(): remote call failed");
+}
+
+status_t CryptoHal::toSharedBuffer(const sp<IMemory>& memory, ::SharedBuffer* buffer) {
+    ssize_t offset;
+    size_t size;
+
+    if (memory == NULL && buffer == NULL) {
+        return UNEXPECTED_NULL;
+    }
+
+    sp<IMemoryHeap> heap = memory->getMemory(&offset, &size);
+    if (heap == NULL) {
+        return UNEXPECTED_NULL;
+    }
+
+    if (mHeapBases.indexOfKey(heap->getBase()) < 0) {
+        setHeapBase(heap);
+    }
+
+    buffer->bufferId = mHeapBases.valueFor(heap->getBase());
+    buffer->offset = offset >= 0 ? offset : 0;
+    buffer->size = size;
+    return OK;
+}
+
+ssize_t CryptoHal::decrypt(const uint8_t keyId[16], const uint8_t iv[16],
+        CryptoPlugin::Mode mode, const CryptoPlugin::Pattern &pattern,
+        const sp<IMemory> &source, size_t offset,
+        const CryptoPlugin::SubSample *subSamples, size_t numSubSamples,
+        const ICrypto::DestinationBuffer &destination, AString *errorDetailMsg) {
+    Mutex::Autolock autoLock(mLock);
+
+    if (mInitCheck != OK) {
+        return mInitCheck;
+    }
+
+    Mode hMode;
+    switch(mode) {
+    case CryptoPlugin::kMode_Unencrypted:
+        hMode = Mode::UNENCRYPTED ;
+        break;
+    case CryptoPlugin::kMode_AES_CTR:
+        hMode = Mode::AES_CTR;
+        break;
+    case CryptoPlugin::kMode_AES_WV:
+        hMode = Mode::AES_CBC_CTS;
+        break;
+    case CryptoPlugin::kMode_AES_CBC:
+        hMode = Mode::AES_CBC;
+        break;
+    default:
+        return UNKNOWN_ERROR;
+    }
+
+    Pattern hPattern;
+    hPattern.encryptBlocks = pattern.mEncryptBlocks;
+    hPattern.skipBlocks = pattern.mSkipBlocks;
+
+    std::vector<SubSample> stdSubSamples;
+    for (size_t i = 0; i < numSubSamples; i++) {
+        SubSample subSample;
+        subSample.numBytesOfClearData = subSamples[i].mNumBytesOfClearData;
+        subSample.numBytesOfEncryptedData = subSamples[i].mNumBytesOfEncryptedData;
+        stdSubSamples.push_back(subSample);
+    }
+    auto hSubSamples = hidl_vec<SubSample>(stdSubSamples);
+
+    bool secure;
+    ::DestinationBuffer hDestination;
+    if (destination.mType == kDestinationTypeSharedMemory) {
+        hDestination.type = BufferType::SHARED_MEMORY;
+        status_t status = toSharedBuffer(destination.mSharedMemory,
+                &hDestination.nonsecureMemory);
+        if (status != OK) {
+            return status;
+        }
+        secure = false;
+    } else {
+        hDestination.type = BufferType::NATIVE_HANDLE;
+        hDestination.secureMemory = hidl_handle(destination.mHandle);
+        secure = true;
+    }
+
+    ::SharedBuffer hSource;
+    status_t status = toSharedBuffer(source, &hSource);
+    if (status != OK) {
+        return status;
+    }
+
+    status_t err = UNKNOWN_ERROR;
+    uint32_t bytesWritten = 0;
+
+    Return<void> hResult = mPlugin->decrypt(secure, toHidlArray16(keyId), toHidlArray16(iv), hMode,
+            hPattern, hSubSamples, hSource, offset, hDestination,
+            [&](Status status, uint32_t hBytesWritten, hidl_string hDetailedError) {
+                if (status == Status::OK) {
+                    bytesWritten = hBytesWritten;
+                    *errorDetailMsg = toString8(hDetailedError);
+                }
+                err = toStatusT(status);
+            }
+        );
+
+    if (!hResult.isOk()) {
+        err = DEAD_OBJECT;
+    }
+
+    if (err == OK) {
+        return bytesWritten;
+    }
+    return err;
+}
+
+void CryptoHal::notifyResolution(uint32_t width, uint32_t height) {
+    Mutex::Autolock autoLock(mLock);
+
+    if (mInitCheck != OK) {
+        return;
+    }
+
+    mPlugin->notifyResolution(width, height);
+}
+
+status_t CryptoHal::setMediaDrmSession(const Vector<uint8_t> &sessionId) {
+    Mutex::Autolock autoLock(mLock);
+
+    if (mInitCheck != OK) {
+        return mInitCheck;
+    }
+
+    return toStatusT(mPlugin->setMediaDrmSession(toHidlVec(sessionId)));
+}
+
+}  // namespace android
diff --git a/drm/libmediadrm/DescramblerImpl.cpp b/drm/libmediadrm/DescramblerImpl.cpp
new file mode 100644
index 0000000..94e09e2
--- /dev/null
+++ b/drm/libmediadrm/DescramblerImpl.cpp
@@ -0,0 +1,107 @@
+
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+//#define LOG_NDEBUG 0
+#define LOG_TAG "DescramblerImpl"
+
+#include <media/cas/DescramblerAPI.h>
+#include <media/DescramblerImpl.h>
+#include <media/SharedLibrary.h>
+#include <utils/Log.h>
+#include <binder/IMemory.h>
+
+namespace android {
+
+static Status getBinderStatus(status_t err) {
+    if (err == OK) {
+        return Status::ok();
+    }
+    if (err == BAD_VALUE) {
+        return Status::fromExceptionCode(Status::EX_ILLEGAL_ARGUMENT);
+    }
+    if (err == INVALID_OPERATION) {
+        return Status::fromExceptionCode(Status::EX_ILLEGAL_STATE);
+    }
+    return Status::fromServiceSpecificError(err);
+}
+
+static String8 sessionIdToString(const CasSessionId &sessionId) {
+    String8 result;
+    for (size_t i = 0; i < sessionId.size(); i++) {
+        result.appendFormat("%02x ", sessionId[i]);
+    }
+    if (result.isEmpty()) {
+        result.append("(null)");
+    }
+    return result;
+}
+
+DescramblerImpl::DescramblerImpl(
+        const sp<SharedLibrary>& library, DescramblerPlugin *plugin) :
+        mLibrary(library), mPlugin(plugin) {
+    ALOGV("CTOR: mPlugin=%p", mPlugin);
+}
+
+DescramblerImpl::~DescramblerImpl() {
+    ALOGV("DTOR: mPlugin=%p", mPlugin);
+    release();
+}
+
+Status DescramblerImpl::setMediaCasSession(const CasSessionId& sessionId) {
+    ALOGV("setMediaCasSession: sessionId=%s",
+            sessionIdToString(sessionId).string());
+
+    return getBinderStatus(mPlugin->setMediaCasSession(sessionId));
+}
+
+Status DescramblerImpl::requiresSecureDecoderComponent(
+        const String16& mime, bool *result) {
+    *result = mPlugin->requiresSecureDecoderComponent(String8(mime));
+
+    return getBinderStatus(OK);
+}
+
+Status DescramblerImpl::descramble(
+        const DescrambleInfo& info, int32_t *result) {
+    ALOGV("descramble");
+
+    *result = mPlugin->descramble(
+            info.dstType != DescrambleInfo::kDestinationTypeVmPointer,
+            info.scramblingControl,
+            info.numSubSamples,
+            info.subSamples,
+            info.srcMem->pointer(),
+            info.srcOffset,
+            info.dstType == DescrambleInfo::kDestinationTypeVmPointer ?
+                    info.srcMem->pointer() : info.dstPtr,
+            info.dstOffset,
+            NULL);
+
+    return getBinderStatus(*result >= 0 ? OK : *result);
+}
+
+Status DescramblerImpl::release() {
+    ALOGV("release: mPlugin=%p", mPlugin);
+
+    if (mPlugin != NULL) {
+        delete mPlugin;
+        mPlugin = NULL;
+    }
+    return Status::ok();
+}
+
+} // namespace android
+
diff --git a/drm/libmediadrm/Drm.cpp b/drm/libmediadrm/Drm.cpp
index 9ab08db..e3176e3 100644
--- a/drm/libmediadrm/Drm.cpp
+++ b/drm/libmediadrm/Drm.cpp
@@ -303,7 +303,8 @@
     return true;
 }
 
-status_t Drm::createPlugin(const uint8_t uuid[16]) {
+status_t Drm::createPlugin(const uint8_t uuid[16],
+                           const String8& /* appPackageName */) {
     Mutex::Autolock autoLock(mLock);
 
     if (mPlugin != NULL) {
@@ -319,7 +320,12 @@
     }
 
     status_t result = mFactory->createDrmPlugin(uuid, &mPlugin);
-    mPlugin->setListener(this);
+    if (mPlugin) {
+        mPlugin->setListener(this);
+    } else {
+        ALOGE("Failed to create plugin");
+        return UNEXPECTED_NULL;
+    }
     return result;
 }
 
@@ -334,6 +340,7 @@
         return -EINVAL;
     }
 
+    setListener(NULL);
     delete mPlugin;
     mPlugin = NULL;
 
diff --git a/drm/libmediadrm/DrmHal.cpp b/drm/libmediadrm/DrmHal.cpp
new file mode 100644
index 0000000..16035c0
--- /dev/null
+++ b/drm/libmediadrm/DrmHal.cpp
@@ -0,0 +1,974 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "DrmHal"
+#include <utils/Log.h>
+
+#include <binder/IPCThreadState.h>
+#include <binder/IServiceManager.h>
+
+#include <android/hardware/drm/1.0/IDrmFactory.h>
+#include <android/hardware/drm/1.0/IDrmPlugin.h>
+#include <android/hardware/drm/1.0/types.h>
+#include <android/hidl/manager/1.0/IServiceManager.h>
+
+#include <media/DrmHal.h>
+#include <media/DrmSessionClientInterface.h>
+#include <media/DrmSessionManager.h>
+#include <media/drm/DrmAPI.h>
+#include <media/stagefright/foundation/ADebug.h>
+#include <media/stagefright/foundation/AString.h>
+#include <media/stagefright/foundation/hexdump.h>
+#include <media/stagefright/MediaErrors.h>
+
+using ::android::hardware::drm::V1_0::EventType;
+using ::android::hardware::drm::V1_0::IDrmFactory;
+using ::android::hardware::drm::V1_0::IDrmPlugin;
+using ::android::hardware::drm::V1_0::KeyedVector;
+using ::android::hardware::drm::V1_0::KeyRequestType;
+using ::android::hardware::drm::V1_0::KeyStatus;
+using ::android::hardware::drm::V1_0::KeyStatusType;
+using ::android::hardware::drm::V1_0::KeyType;
+using ::android::hardware::drm::V1_0::KeyValue;
+using ::android::hardware::drm::V1_0::SecureStop;
+using ::android::hardware::drm::V1_0::Status;
+using ::android::hardware::hidl_array;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::hidl::manager::V1_0::IServiceManager;
+using ::android::sp;
+
+namespace android {
+
+static inline int getCallingPid() {
+    return IPCThreadState::self()->getCallingPid();
+}
+
+static bool checkPermission(const char* permissionString) {
+    if (getpid() == IPCThreadState::self()->getCallingPid()) return true;
+    bool ok = checkCallingPermission(String16(permissionString));
+    if (!ok) ALOGE("Request requires %s", permissionString);
+    return ok;
+}
+
+static const Vector<uint8_t> toVector(const hidl_vec<uint8_t> &vec) {
+    Vector<uint8_t> vector;
+    vector.appendArray(vec.data(), vec.size());
+    return *const_cast<const Vector<uint8_t> *>(&vector);
+}
+
+static hidl_vec<uint8_t> toHidlVec(const Vector<uint8_t> &vector) {
+    hidl_vec<uint8_t> vec;
+    vec.setToExternal(const_cast<uint8_t *>(vector.array()), vector.size());
+    return vec;
+}
+
+static String8 toString8(const hidl_string &string) {
+    return String8(string.c_str());
+}
+
+static hidl_string toHidlString(const String8& string) {
+    return hidl_string(string.string());
+}
+
+
+static ::KeyedVector toHidlKeyedVector(const KeyedVector<String8, String8>&
+        keyedVector) {
+    std::vector<KeyValue> stdKeyedVector;
+    for (size_t i = 0; i < keyedVector.size(); i++) {
+        KeyValue keyValue;
+        keyValue.key = toHidlString(keyedVector.keyAt(i));
+        keyValue.value = toHidlString(keyedVector.valueAt(i));
+        stdKeyedVector.push_back(keyValue);
+    }
+    return ::KeyedVector(stdKeyedVector);
+}
+
+static KeyedVector<String8, String8> toKeyedVector(const ::KeyedVector&
+        hKeyedVector) {
+    KeyedVector<String8, String8> keyedVector;
+    for (size_t i = 0; i < hKeyedVector.size(); i++) {
+        keyedVector.add(toString8(hKeyedVector[i].key),
+                toString8(hKeyedVector[i].value));
+    }
+    return keyedVector;
+}
+
+static List<Vector<uint8_t>> toSecureStops(const hidl_vec<SecureStop>&
+        hSecureStops) {
+    List<Vector<uint8_t>> secureStops;
+    for (size_t i = 0; i < hSecureStops.size(); i++) {
+        secureStops.push_back(toVector(hSecureStops[i].opaqueData));
+    }
+    return secureStops;
+}
+
+static status_t toStatusT(Status status) {
+    switch (status) {
+    case Status::OK:
+        return OK;
+        break;
+    case Status::ERROR_DRM_NO_LICENSE:
+        return ERROR_DRM_NO_LICENSE;
+        break;
+    case Status::ERROR_DRM_LICENSE_EXPIRED:
+        return ERROR_DRM_LICENSE_EXPIRED;
+        break;
+    case Status::ERROR_DRM_SESSION_NOT_OPENED:
+        return ERROR_DRM_SESSION_NOT_OPENED;
+        break;
+    case Status::ERROR_DRM_CANNOT_HANDLE:
+        return ERROR_DRM_CANNOT_HANDLE;
+        break;
+    case Status::ERROR_DRM_INVALID_STATE:
+        return ERROR_DRM_TAMPER_DETECTED;
+        break;
+    case Status::BAD_VALUE:
+        return BAD_VALUE;
+        break;
+    case Status::ERROR_DRM_NOT_PROVISIONED:
+        return ERROR_DRM_NOT_PROVISIONED;
+        break;
+    case Status::ERROR_DRM_RESOURCE_BUSY:
+        return ERROR_DRM_RESOURCE_BUSY;
+        break;
+    case Status::ERROR_DRM_DEVICE_REVOKED:
+        return ERROR_DRM_DEVICE_REVOKED;
+        break;
+    case Status::ERROR_DRM_UNKNOWN:
+    default:
+        return ERROR_DRM_UNKNOWN;
+        break;
+    }
+}
+
+
+Mutex DrmHal::mLock;
+
+struct DrmSessionClient : public DrmSessionClientInterface {
+    explicit DrmSessionClient(DrmHal* drm) : mDrm(drm) {}
+
+    virtual bool reclaimSession(const Vector<uint8_t>& sessionId) {
+        sp<DrmHal> drm = mDrm.promote();
+        if (drm == NULL) {
+            return true;
+        }
+        status_t err = drm->closeSession(sessionId);
+        if (err != OK) {
+            return false;
+        }
+        drm->sendEvent(EventType::SESSION_RECLAIMED,
+                toHidlVec(sessionId), hidl_vec<uint8_t>());
+        return true;
+    }
+
+protected:
+    virtual ~DrmSessionClient() {}
+
+private:
+    wp<DrmHal> mDrm;
+
+    DISALLOW_EVIL_CONSTRUCTORS(DrmSessionClient);
+};
+
+DrmHal::DrmHal()
+   : mDrmSessionClient(new DrmSessionClient(this)),
+     mFactories(makeDrmFactories()),
+     mInitCheck((mFactories.size() == 0) ? ERROR_UNSUPPORTED : NO_INIT) {
+}
+
+DrmHal::~DrmHal() {
+    DrmSessionManager::Instance()->removeDrm(mDrmSessionClient);
+}
+
+Vector<sp<IDrmFactory>> DrmHal::makeDrmFactories() {
+    Vector<sp<IDrmFactory>> factories;
+
+    auto manager = ::IServiceManager::getService();
+
+    if (manager != NULL) {
+        manager->listByInterface(IDrmFactory::descriptor,
+                [&factories](const hidl_vec<hidl_string> &registered) {
+                    for (const auto &instance : registered) {
+                        auto factory = IDrmFactory::getService(instance);
+                        if (factory != NULL) {
+                            factories.push_back(factory);
+                            ALOGI("makeDrmFactories: factory instance %s is %s",
+                                    instance.c_str(),
+                                    factory->isRemote() ? "Remote" : "Not Remote");
+                        }
+                    }
+                }
+            );
+    }
+
+    if (factories.size() == 0) {
+        // must be in passthrough mode, load the default passthrough service
+        auto passthrough = IDrmFactory::getService("drm");
+        if (passthrough != NULL) {
+            ALOGI("makeDrmFactories: using default drm instance");
+            factories.push_back(passthrough);
+        } else {
+            ALOGE("Failed to find any drm factories");
+        }
+    }
+    return factories;
+}
+
+sp<IDrmPlugin> DrmHal::makeDrmPlugin(const sp<IDrmFactory>& factory,
+        const uint8_t uuid[16], const String8& appPackageName) {
+
+    sp<IDrmPlugin> plugin;
+    Return<void> hResult = factory->createPlugin(uuid, appPackageName.string(),
+            [&](Status status, const sp<IDrmPlugin>& hPlugin) {
+                if (status != Status::OK) {
+                    ALOGE("Failed to make drm plugin");
+                    return;
+                }
+                plugin = hPlugin;
+            }
+        );
+    return plugin;
+}
+
+status_t DrmHal::initCheck() const {
+    return mInitCheck;
+}
+
+status_t DrmHal::setListener(const sp<IDrmClient>& listener)
+{
+    Mutex::Autolock lock(mEventLock);
+    if (mListener != NULL){
+        IInterface::asBinder(mListener)->unlinkToDeath(this);
+    }
+    if (listener != NULL) {
+        IInterface::asBinder(listener)->linkToDeath(this);
+    }
+    mListener = listener;
+    return NO_ERROR;
+}
+
+Return<void> DrmHal::sendEvent(EventType hEventType,
+        const hidl_vec<uint8_t>& sessionId, const hidl_vec<uint8_t>& data) {
+
+    mEventLock.lock();
+    sp<IDrmClient> listener = mListener;
+    mEventLock.unlock();
+
+    if (listener != NULL) {
+        Parcel obj;
+        writeByteArray(obj, sessionId);
+        writeByteArray(obj, data);
+
+        Mutex::Autolock lock(mNotifyLock);
+        DrmPlugin::EventType eventType;
+        switch(hEventType) {
+        case EventType::PROVISION_REQUIRED:
+            eventType = DrmPlugin::kDrmPluginEventProvisionRequired;
+            break;
+        case EventType::KEY_NEEDED:
+            eventType = DrmPlugin::kDrmPluginEventKeyNeeded;
+            break;
+        case EventType::KEY_EXPIRED:
+            eventType = DrmPlugin::kDrmPluginEventKeyExpired;
+            break;
+        case EventType::VENDOR_DEFINED:
+            eventType = DrmPlugin::kDrmPluginEventVendorDefined;
+            break;
+        default:
+            return Void();
+        }
+        listener->notify(eventType, 0, &obj);
+    }
+    return Void();
+}
+
+Return<void> DrmHal::sendExpirationUpdate(const hidl_vec<uint8_t>& sessionId,
+        int64_t expiryTimeInMS) {
+
+    mEventLock.lock();
+    sp<IDrmClient> listener = mListener;
+    mEventLock.unlock();
+
+    if (listener != NULL) {
+        Parcel obj;
+        writeByteArray(obj, sessionId);
+        obj.writeInt64(expiryTimeInMS);
+
+        Mutex::Autolock lock(mNotifyLock);
+        listener->notify(DrmPlugin::kDrmPluginEventExpirationUpdate, 0, &obj);
+    }
+    return Void();
+}
+
+Return<void> DrmHal::sendKeysChange(const hidl_vec<uint8_t>& sessionId,
+        const hidl_vec<KeyStatus>& keyStatusList, bool hasNewUsableKey) {
+
+    mEventLock.lock();
+    sp<IDrmClient> listener = mListener;
+    mEventLock.unlock();
+
+    if (listener != NULL) {
+        Parcel obj;
+        writeByteArray(obj, sessionId);
+
+        size_t nKeys = keyStatusList.size();
+        obj.writeInt32(nKeys);
+        for (size_t i = 0; i < nKeys; ++i) {
+            const KeyStatus &keyStatus = keyStatusList[i];
+            writeByteArray(obj, keyStatus.keyId);
+            uint32_t type;
+            switch(keyStatus.type) {
+            case KeyStatusType::USABLE:
+                type = DrmPlugin::kKeyStatusType_Usable;
+                break;
+            case KeyStatusType::EXPIRED:
+                type = DrmPlugin::kKeyStatusType_Expired;
+                break;
+            case KeyStatusType::OUTPUTNOTALLOWED:
+                type = DrmPlugin::kKeyStatusType_OutputNotAllowed;
+                break;
+            case KeyStatusType::STATUSPENDING:
+                type = DrmPlugin::kKeyStatusType_StatusPending;
+                break;
+            case KeyStatusType::INTERNALERROR:
+            default:
+                type = DrmPlugin::kKeyStatusType_InternalError;
+                break;
+            }
+            obj.writeInt32(type);
+        }
+        obj.writeInt32(hasNewUsableKey);
+
+        Mutex::Autolock lock(mNotifyLock);
+        listener->notify(DrmPlugin::kDrmPluginEventKeysChange, 0, &obj);
+    }
+    return Void();
+}
+
+bool DrmHal::isCryptoSchemeSupported(const uint8_t uuid[16], const String8 &mimeType) {
+    Mutex::Autolock autoLock(mLock);
+
+    for (size_t i = 0; i < mFactories.size(); i++) {
+        if (mFactories[i]->isCryptoSchemeSupported(uuid)) {
+            if (mimeType != "") {
+                if (mFactories[i]->isContentTypeSupported(mimeType.string())) {
+                    return true;
+                }
+            } else {
+                return true;
+            }
+        }
+    }
+    return false;
+}
+
+status_t DrmHal::createPlugin(const uint8_t uuid[16],
+        const String8& appPackageName) {
+    Mutex::Autolock autoLock(mLock);
+
+    for (size_t i = 0; i < mFactories.size(); i++) {
+        if (mFactories[i]->isCryptoSchemeSupported(uuid)) {
+            mPlugin = makeDrmPlugin(mFactories[i], uuid, appPackageName);
+        }
+    }
+
+    if (mPlugin == NULL) {
+        mInitCheck = ERROR_UNSUPPORTED;
+    } else {
+        mInitCheck = OK;
+        mPlugin->setListener(this);
+    }
+
+    return mInitCheck;
+}
+
+status_t DrmHal::destroyPlugin() {
+    Mutex::Autolock autoLock(mLock);
+
+    if (mInitCheck != OK) {
+        return mInitCheck;
+    }
+
+    setListener(NULL);
+    mPlugin.clear();
+
+    return OK;
+}
+
+status_t DrmHal::openSession(Vector<uint8_t> &sessionId) {
+    Mutex::Autolock autoLock(mLock);
+
+    if (mInitCheck != OK) {
+        return mInitCheck;
+    }
+
+    status_t  err = UNKNOWN_ERROR;
+
+    bool retry = true;
+    do {
+        hidl_vec<uint8_t> hSessionId;
+
+        Return<void> hResult = mPlugin->openSession(
+                [&](Status status, const hidl_vec<uint8_t>& id) {
+                    if (status == Status::OK) {
+                        sessionId = toVector(id);
+                    }
+                    err = toStatusT(status);
+                }
+            );
+
+        if (!hResult.isOk()) {
+            err = DEAD_OBJECT;
+        }
+
+        if (err == ERROR_DRM_RESOURCE_BUSY && retry) {
+            mLock.unlock();
+            // reclaimSession may call back to closeSession, since mLock is
+            // shared between Drm instances, we should unlock here to avoid
+            // deadlock.
+            retry = DrmSessionManager::Instance()->reclaimSession(getCallingPid());
+            mLock.lock();
+        } else {
+            retry = false;
+        }
+    } while (retry);
+
+    if (err == OK) {
+        DrmSessionManager::Instance()->addSession(getCallingPid(),
+                mDrmSessionClient, sessionId);
+    }
+    return err;
+}
+
+status_t DrmHal::closeSession(Vector<uint8_t> const &sessionId) {
+    Mutex::Autolock autoLock(mLock);
+
+    if (mInitCheck != OK) {
+        return mInitCheck;
+    }
+
+    Status status = mPlugin->closeSession(toHidlVec(sessionId));
+    if (status == Status::OK) {
+        DrmSessionManager::Instance()->removeSession(sessionId);
+    }
+    return toStatusT(status);
+}
+
+status_t DrmHal::getKeyRequest(Vector<uint8_t> const &sessionId,
+        Vector<uint8_t> const &initData, String8 const &mimeType,
+        DrmPlugin::KeyType keyType, KeyedVector<String8,
+        String8> const &optionalParameters, Vector<uint8_t> &request,
+        String8 &defaultUrl, DrmPlugin::KeyRequestType *keyRequestType) {
+    Mutex::Autolock autoLock(mLock);
+
+    if (mInitCheck != OK) {
+        return mInitCheck;
+    }
+
+    DrmSessionManager::Instance()->useSession(sessionId);
+
+    KeyType hKeyType;
+    if (keyType == DrmPlugin::kKeyType_Streaming) {
+        hKeyType = KeyType::STREAMING;
+    } else if (keyType == DrmPlugin::kKeyType_Offline) {
+        hKeyType = KeyType::OFFLINE;
+    } else if (keyType == DrmPlugin::kKeyType_Release) {
+        hKeyType = KeyType::RELEASE;
+    } else {
+        return BAD_VALUE;
+    }
+
+    ::KeyedVector hOptionalParameters = toHidlKeyedVector(optionalParameters);
+
+    status_t err = UNKNOWN_ERROR;
+
+    Return<void> hResult = mPlugin->getKeyRequest(toHidlVec(sessionId),
+            toHidlVec(initData), toHidlString(mimeType), hKeyType, hOptionalParameters,
+            [&](Status status, const hidl_vec<uint8_t>& hRequest,
+                    KeyRequestType hKeyRequestType, const hidl_string& hDefaultUrl) {
+
+                if (status == Status::OK) {
+                    request = toVector(hRequest);
+                    defaultUrl = toString8(hDefaultUrl);
+
+                    switch (hKeyRequestType) {
+                    case KeyRequestType::INITIAL:
+                        *keyRequestType = DrmPlugin::kKeyRequestType_Initial;
+                        break;
+                    case KeyRequestType::RENEWAL:
+                        *keyRequestType = DrmPlugin::kKeyRequestType_Renewal;
+                        break;
+                    case KeyRequestType::RELEASE:
+                        *keyRequestType = DrmPlugin::kKeyRequestType_Release;
+                        break;
+                    default:
+                        *keyRequestType = DrmPlugin::kKeyRequestType_Unknown;
+                        break;
+                    }
+                    err = toStatusT(status);
+                }
+            });
+
+    return hResult.isOk() ? err : DEAD_OBJECT;
+}
+
+status_t DrmHal::provideKeyResponse(Vector<uint8_t> const &sessionId,
+        Vector<uint8_t> const &response, Vector<uint8_t> &keySetId) {
+    Mutex::Autolock autoLock(mLock);
+
+    if (mInitCheck != OK) {
+        return mInitCheck;
+    }
+
+    DrmSessionManager::Instance()->useSession(sessionId);
+
+    status_t err = UNKNOWN_ERROR;
+
+    Return<void> hResult = mPlugin->provideKeyResponse(toHidlVec(sessionId),
+            toHidlVec(response),
+            [&](Status status, const hidl_vec<uint8_t>& hKeySetId) {
+                if (status == Status::OK) {
+                    keySetId = toVector(hKeySetId);
+                }
+                err = toStatusT(status);
+            }
+        );
+
+    return hResult.isOk() ? err : DEAD_OBJECT;
+}
+
+status_t DrmHal::removeKeys(Vector<uint8_t> const &keySetId) {
+    Mutex::Autolock autoLock(mLock);
+
+    if (mInitCheck != OK) {
+        return mInitCheck;
+    }
+
+    return toStatusT(mPlugin->removeKeys(toHidlVec(keySetId)));
+}
+
+status_t DrmHal::restoreKeys(Vector<uint8_t> const &sessionId,
+        Vector<uint8_t> const &keySetId) {
+    Mutex::Autolock autoLock(mLock);
+
+    if (mInitCheck != OK) {
+        return mInitCheck;
+    }
+
+    DrmSessionManager::Instance()->useSession(sessionId);
+
+    return toStatusT(mPlugin->restoreKeys(toHidlVec(sessionId),
+                    toHidlVec(keySetId)));
+}
+
+status_t DrmHal::queryKeyStatus(Vector<uint8_t> const &sessionId,
+        KeyedVector<String8, String8> &infoMap) const {
+    Mutex::Autolock autoLock(mLock);
+
+    if (mInitCheck != OK) {
+        return mInitCheck;
+    }
+
+    DrmSessionManager::Instance()->useSession(sessionId);
+
+    ::KeyedVector hInfoMap;
+
+    status_t err = UNKNOWN_ERROR;
+
+    Return<void> hResult = mPlugin->queryKeyStatus(toHidlVec(sessionId),
+            [&](Status status, const hidl_vec<KeyValue>& map) {
+                if (status == Status::OK) {
+                    infoMap = toKeyedVector(map);
+                }
+                err = toStatusT(status);
+            }
+        );
+
+    return hResult.isOk() ? err : DEAD_OBJECT;
+}
+
+status_t DrmHal::getProvisionRequest(String8 const &certType,
+        String8 const &certAuthority, Vector<uint8_t> &request,
+        String8 &defaultUrl) {
+    Mutex::Autolock autoLock(mLock);
+
+    if (mInitCheck != OK) {
+        return mInitCheck;
+    }
+
+    status_t err = UNKNOWN_ERROR;
+
+    Return<void> hResult = mPlugin->getProvisionRequest(
+            toHidlString(certType), toHidlString(certAuthority),
+            [&](Status status, const hidl_vec<uint8_t>& hRequest,
+                    const hidl_string& hDefaultUrl) {
+                if (status == Status::OK) {
+                    request = toVector(hRequest);
+                    defaultUrl = toString8(hDefaultUrl);
+                }
+                err = toStatusT(status);
+            }
+        );
+
+    return hResult.isOk() ? err : DEAD_OBJECT;
+}
+
+status_t DrmHal::provideProvisionResponse(Vector<uint8_t> const &response,
+        Vector<uint8_t> &certificate, Vector<uint8_t> &wrappedKey) {
+    Mutex::Autolock autoLock(mLock);
+
+    if (mInitCheck != OK) {
+        return mInitCheck;
+    }
+
+    status_t err = UNKNOWN_ERROR;
+
+    Return<void> hResult = mPlugin->provideProvisionResponse(toHidlVec(response),
+            [&](Status status, const hidl_vec<uint8_t>& hCertificate,
+                    const hidl_vec<uint8_t>& hWrappedKey) {
+                if (status == Status::OK) {
+                    certificate = toVector(hCertificate);
+                    wrappedKey = toVector(hWrappedKey);
+                }
+                err = toStatusT(status);
+            }
+        );
+
+    return hResult.isOk() ? err : DEAD_OBJECT;
+}
+
+status_t DrmHal::getSecureStops(List<Vector<uint8_t>> &secureStops) {
+    Mutex::Autolock autoLock(mLock);
+
+    if (mInitCheck != OK) {
+        return mInitCheck;
+    }
+
+    status_t err = UNKNOWN_ERROR;
+
+    Return<void> hResult = mPlugin->getSecureStops(
+            [&](Status status, const hidl_vec<SecureStop>& hSecureStops) {
+                if (status == Status::OK) {
+                    secureStops = toSecureStops(hSecureStops);
+                }
+                err = toStatusT(status);
+            }
+    );
+
+    return hResult.isOk() ? err : DEAD_OBJECT;
+}
+
+
+status_t DrmHal::getSecureStop(Vector<uint8_t> const &ssid, Vector<uint8_t> &secureStop) {
+    Mutex::Autolock autoLock(mLock);
+
+    if (mInitCheck != OK) {
+        return mInitCheck;
+    }
+
+    status_t err = UNKNOWN_ERROR;
+
+    Return<void> hResult = mPlugin->getSecureStop(toHidlVec(ssid),
+            [&](Status status, const SecureStop& hSecureStop) {
+                if (status == Status::OK) {
+                    secureStop = toVector(hSecureStop.opaqueData);
+                }
+                err = toStatusT(status);
+            }
+    );
+
+    return hResult.isOk() ? err : DEAD_OBJECT;
+}
+
+status_t DrmHal::releaseSecureStops(Vector<uint8_t> const &ssRelease) {
+    Mutex::Autolock autoLock(mLock);
+
+    if (mInitCheck != OK) {
+        return mInitCheck;
+    }
+
+    return toStatusT(mPlugin->releaseSecureStop(toHidlVec(ssRelease)));
+}
+
+status_t DrmHal::releaseAllSecureStops() {
+    Mutex::Autolock autoLock(mLock);
+
+    if (mInitCheck != OK) {
+        return mInitCheck;
+    }
+
+    return toStatusT(mPlugin->releaseAllSecureStops());
+}
+
+status_t DrmHal::getPropertyString(String8 const &name, String8 &value ) const {
+    Mutex::Autolock autoLock(mLock);
+
+    if (mInitCheck != OK) {
+        return mInitCheck;
+    }
+
+    status_t err = UNKNOWN_ERROR;
+
+    Return<void> hResult = mPlugin->getPropertyString(toHidlString(name),
+            [&](Status status, const hidl_string& hValue) {
+                if (status == Status::OK) {
+                    value = toString8(hValue);
+                }
+                err = toStatusT(status);
+            }
+    );
+
+    return hResult.isOk() ? err : DEAD_OBJECT;
+}
+
+status_t DrmHal::getPropertyByteArray(String8 const &name, Vector<uint8_t> &value ) const {
+    Mutex::Autolock autoLock(mLock);
+
+    if (mInitCheck != OK) {
+        return mInitCheck;
+    }
+
+    status_t err = UNKNOWN_ERROR;
+
+    Return<void> hResult = mPlugin->getPropertyByteArray(toHidlString(name),
+            [&](Status status, const hidl_vec<uint8_t>& hValue) {
+                if (status == Status::OK) {
+                    value = toVector(hValue);
+                }
+                err = toStatusT(status);
+            }
+    );
+
+    return hResult.isOk() ? err : DEAD_OBJECT;
+}
+
+status_t DrmHal::setPropertyString(String8 const &name, String8 const &value ) const {
+    Mutex::Autolock autoLock(mLock);
+
+    if (mInitCheck != OK) {
+        return mInitCheck;
+    }
+
+    Status status =  mPlugin->setPropertyString(toHidlString(name),
+            toHidlString(value));
+    return toStatusT(status);
+}
+
+status_t DrmHal::setPropertyByteArray(String8 const &name,
+                                   Vector<uint8_t> const &value ) const {
+    Mutex::Autolock autoLock(mLock);
+
+    if (mInitCheck != OK) {
+        return mInitCheck;
+    }
+
+    Status status = mPlugin->setPropertyByteArray(toHidlString(name),
+            toHidlVec(value));
+    return toStatusT(status);
+}
+
+
+status_t DrmHal::setCipherAlgorithm(Vector<uint8_t> const &sessionId,
+                                 String8 const &algorithm) {
+    Mutex::Autolock autoLock(mLock);
+
+    if (mInitCheck != OK) {
+        return mInitCheck;
+    }
+
+    DrmSessionManager::Instance()->useSession(sessionId);
+
+    Status status = mPlugin->setCipherAlgorithm(toHidlVec(sessionId),
+            toHidlString(algorithm));
+    return toStatusT(status);
+}
+
+status_t DrmHal::setMacAlgorithm(Vector<uint8_t> const &sessionId,
+                              String8 const &algorithm) {
+    Mutex::Autolock autoLock(mLock);
+
+    if (mInitCheck != OK) {
+        return mInitCheck;
+    }
+
+    DrmSessionManager::Instance()->useSession(sessionId);
+
+    Status status = mPlugin->setMacAlgorithm(toHidlVec(sessionId),
+            toHidlString(algorithm));
+    return toStatusT(status);
+}
+
+status_t DrmHal::encrypt(Vector<uint8_t> const &sessionId,
+        Vector<uint8_t> const &keyId, Vector<uint8_t> const &input,
+        Vector<uint8_t> const &iv, Vector<uint8_t> &output) {
+    Mutex::Autolock autoLock(mLock);
+
+    if (mInitCheck != OK) {
+        return mInitCheck;
+    }
+
+    DrmSessionManager::Instance()->useSession(sessionId);
+
+    status_t err = UNKNOWN_ERROR;
+
+    Return<void> hResult = mPlugin->encrypt(toHidlVec(sessionId),
+            toHidlVec(keyId), toHidlVec(input), toHidlVec(iv),
+            [&](Status status, const hidl_vec<uint8_t>& hOutput) {
+                if (status == Status::OK) {
+                    output = toVector(hOutput);
+                }
+                err = toStatusT(status);
+            }
+    );
+
+    return hResult.isOk() ? err : DEAD_OBJECT;
+}
+
+status_t DrmHal::decrypt(Vector<uint8_t> const &sessionId,
+        Vector<uint8_t> const &keyId, Vector<uint8_t> const &input,
+        Vector<uint8_t> const &iv, Vector<uint8_t> &output) {
+    Mutex::Autolock autoLock(mLock);
+
+    if (mInitCheck != OK) {
+        return mInitCheck;
+    }
+
+    DrmSessionManager::Instance()->useSession(sessionId);
+
+    status_t  err = UNKNOWN_ERROR;
+
+    Return<void> hResult = mPlugin->decrypt(toHidlVec(sessionId),
+            toHidlVec(keyId), toHidlVec(input), toHidlVec(iv),
+            [&](Status status, const hidl_vec<uint8_t>& hOutput) {
+                if (status == Status::OK) {
+                    output = toVector(hOutput);
+                }
+                err = toStatusT(status);
+            }
+    );
+
+    return hResult.isOk() ? err : DEAD_OBJECT;
+}
+
+status_t DrmHal::sign(Vector<uint8_t> const &sessionId,
+        Vector<uint8_t> const &keyId, Vector<uint8_t> const &message,
+        Vector<uint8_t> &signature) {
+    Mutex::Autolock autoLock(mLock);
+
+    if (mInitCheck != OK) {
+        return mInitCheck;
+    }
+
+    DrmSessionManager::Instance()->useSession(sessionId);
+
+    status_t err = UNKNOWN_ERROR;
+
+    Return<void> hResult = mPlugin->sign(toHidlVec(sessionId),
+            toHidlVec(keyId), toHidlVec(message),
+            [&](Status status, const hidl_vec<uint8_t>& hSignature)  {
+                if (status == Status::OK) {
+                    signature = toVector(hSignature);
+                }
+                err = toStatusT(status);
+            }
+    );
+
+    return hResult.isOk() ? err : DEAD_OBJECT;
+}
+
+status_t DrmHal::verify(Vector<uint8_t> const &sessionId,
+        Vector<uint8_t> const &keyId, Vector<uint8_t> const &message,
+        Vector<uint8_t> const &signature, bool &match) {
+    Mutex::Autolock autoLock(mLock);
+
+    if (mInitCheck != OK) {
+        return mInitCheck;
+    }
+
+    DrmSessionManager::Instance()->useSession(sessionId);
+
+    status_t err = UNKNOWN_ERROR;
+
+    Return<void> hResult = mPlugin->verify(toHidlVec(sessionId),toHidlVec(keyId),
+            toHidlVec(message), toHidlVec(signature),
+            [&](Status status, bool hMatch) {
+                if (status == Status::OK) {
+                    match = hMatch;
+                } else {
+                    match = false;
+                }
+                err = toStatusT(status);
+            }
+    );
+
+    return hResult.isOk() ? err : DEAD_OBJECT;
+}
+
+status_t DrmHal::signRSA(Vector<uint8_t> const &sessionId,
+        String8 const &algorithm, Vector<uint8_t> const &message,
+        Vector<uint8_t> const &wrappedKey, Vector<uint8_t> &signature) {
+    Mutex::Autolock autoLock(mLock);
+
+    if (mInitCheck != OK) {
+        return mInitCheck;
+    }
+
+    if (!checkPermission("android.permission.ACCESS_DRM_CERTIFICATES")) {
+        return -EPERM;
+    }
+
+    DrmSessionManager::Instance()->useSession(sessionId);
+
+    status_t err = UNKNOWN_ERROR;
+
+    Return<void> hResult = mPlugin->signRSA(toHidlVec(sessionId),
+            toHidlString(algorithm), toHidlVec(message), toHidlVec(wrappedKey),
+            [&](Status status, const hidl_vec<uint8_t>& hSignature) {
+                if (status == Status::OK) {
+                    signature = toVector(hSignature);
+                }
+                err = toStatusT(status);
+            }
+        );
+
+    return hResult.isOk() ? err : DEAD_OBJECT;
+}
+
+void DrmHal::binderDied(const wp<IBinder> &the_late_who __unused)
+{
+    mEventLock.lock();
+    mListener.clear();
+    mEventLock.unlock();
+
+    Mutex::Autolock autoLock(mLock);
+    mPlugin.clear();
+}
+
+void DrmHal::writeByteArray(Parcel &obj, hidl_vec<uint8_t> const &vec)
+{
+    if (vec.size()) {
+        obj.writeInt32(vec.size());
+        obj.write(vec.data(), vec.size());
+    } else {
+        obj.writeInt32(0);
+    }
+}
+
+}  // namespace android
diff --git a/drm/libmediadrm/ICrypto.cpp b/drm/libmediadrm/ICrypto.cpp
new file mode 100644
index 0000000..d8424bb
--- /dev/null
+++ b/drm/libmediadrm/ICrypto.cpp
@@ -0,0 +1,409 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "ICrypto"
+#include <utils/Log.h>
+
+#include <binder/Parcel.h>
+#include <binder/IMemory.h>
+#include <media/ICrypto.h>
+#include <media/stagefright/MediaErrors.h>
+#include <media/stagefright/foundation/ADebug.h>
+#include <media/stagefright/foundation/AString.h>
+
+namespace android {
+
+enum {
+    INIT_CHECK = IBinder::FIRST_CALL_TRANSACTION,
+    IS_CRYPTO_SUPPORTED,
+    CREATE_PLUGIN,
+    DESTROY_PLUGIN,
+    REQUIRES_SECURE_COMPONENT,
+    DECRYPT,
+    NOTIFY_RESOLUTION,
+    SET_MEDIADRM_SESSION,
+};
+
+struct BpCrypto : public BpInterface<ICrypto> {
+    explicit BpCrypto(const sp<IBinder> &impl)
+        : BpInterface<ICrypto>(impl) {
+    }
+
+    virtual status_t initCheck() const {
+        Parcel data, reply;
+        data.writeInterfaceToken(ICrypto::getInterfaceDescriptor());
+        remote()->transact(INIT_CHECK, data, &reply);
+
+        return reply.readInt32();
+    }
+
+    virtual bool isCryptoSchemeSupported(const uint8_t uuid[16]) {
+        Parcel data, reply;
+        data.writeInterfaceToken(ICrypto::getInterfaceDescriptor());
+        data.write(uuid, 16);
+        remote()->transact(IS_CRYPTO_SUPPORTED, data, &reply);
+
+        return reply.readInt32() != 0;
+    }
+
+    virtual status_t createPlugin(
+            const uint8_t uuid[16], const void *opaqueData, size_t opaqueSize) {
+        Parcel data, reply;
+        data.writeInterfaceToken(ICrypto::getInterfaceDescriptor());
+        data.write(uuid, 16);
+        data.writeInt32(opaqueSize);
+
+        if (opaqueSize > 0) {
+            data.write(opaqueData, opaqueSize);
+        }
+
+        remote()->transact(CREATE_PLUGIN, data, &reply);
+
+        return reply.readInt32();
+    }
+
+    virtual status_t destroyPlugin() {
+        Parcel data, reply;
+        data.writeInterfaceToken(ICrypto::getInterfaceDescriptor());
+        remote()->transact(DESTROY_PLUGIN, data, &reply);
+
+        return reply.readInt32();
+    }
+
+    virtual bool requiresSecureDecoderComponent(
+            const char *mime) const {
+        Parcel data, reply;
+        data.writeInterfaceToken(ICrypto::getInterfaceDescriptor());
+        data.writeCString(mime);
+        remote()->transact(REQUIRES_SECURE_COMPONENT, data, &reply);
+
+        return reply.readInt32() != 0;
+    }
+
+    virtual ssize_t decrypt(const uint8_t key[16], const uint8_t iv[16],
+            CryptoPlugin::Mode mode, const CryptoPlugin::Pattern &pattern,
+            const sp<IMemory> &source, size_t offset,
+            const CryptoPlugin::SubSample *subSamples, size_t numSubSamples,
+            const DestinationBuffer &destination, AString *errorDetailMsg) {
+        Parcel data, reply;
+        data.writeInterfaceToken(ICrypto::getInterfaceDescriptor());
+        data.writeInt32(mode);
+        data.writeInt32(pattern.mEncryptBlocks);
+        data.writeInt32(pattern.mSkipBlocks);
+
+        static const uint8_t kDummy[16] = { 0 };
+
+        if (key == NULL) {
+            key = kDummy;
+        }
+
+        if (iv == NULL) {
+            iv = kDummy;
+        }
+
+        data.write(key, 16);
+        data.write(iv, 16);
+
+        size_t totalSize = 0;
+        for (size_t i = 0; i < numSubSamples; ++i) {
+            totalSize += subSamples[i].mNumBytesOfEncryptedData;
+            totalSize += subSamples[i].mNumBytesOfClearData;
+        }
+
+        data.writeInt32(totalSize);
+        data.writeStrongBinder(IInterface::asBinder(source));
+        data.writeInt32(offset);
+
+        data.writeInt32(numSubSamples);
+        data.write(subSamples, sizeof(CryptoPlugin::SubSample) * numSubSamples);
+
+        data.writeInt32((int32_t)destination.mType);
+        if (destination.mType == kDestinationTypeNativeHandle) {
+            if (destination.mHandle == NULL) {
+                return BAD_VALUE;
+            }
+            data.writeNativeHandle(destination.mHandle);
+        } else {
+            if (destination.mSharedMemory == NULL) {
+                return BAD_VALUE;
+            }
+            data.writeStrongBinder(IInterface::asBinder(destination.mSharedMemory));
+        }
+
+        remote()->transact(DECRYPT, data, &reply);
+
+        ssize_t result = reply.readInt32();
+
+        if (isCryptoError(result)) {
+            errorDetailMsg->setTo(reply.readCString());
+        }
+
+        return result;
+    }
+
+    virtual void notifyResolution(
+        uint32_t width, uint32_t height) {
+        Parcel data, reply;
+        data.writeInterfaceToken(ICrypto::getInterfaceDescriptor());
+        data.writeInt32(width);
+        data.writeInt32(height);
+        remote()->transact(NOTIFY_RESOLUTION, data, &reply);
+    }
+
+    virtual status_t setMediaDrmSession(const Vector<uint8_t> &sessionId) {
+        Parcel data, reply;
+        data.writeInterfaceToken(ICrypto::getInterfaceDescriptor());
+
+        writeVector(data, sessionId);
+        remote()->transact(SET_MEDIADRM_SESSION, data, &reply);
+
+        return reply.readInt32();
+    }
+
+private:
+    void readVector(Parcel &reply, Vector<uint8_t> &vector) const {
+        uint32_t size = reply.readInt32();
+        vector.insertAt((size_t)0, size);
+        reply.read(vector.editArray(), size);
+    }
+
+    void writeVector(Parcel &data, Vector<uint8_t> const &vector) const {
+        data.writeInt32(vector.size());
+        data.write(vector.array(), vector.size());
+    }
+
+    DISALLOW_EVIL_CONSTRUCTORS(BpCrypto);
+};
+
+IMPLEMENT_META_INTERFACE(Crypto, "android.hardware.ICrypto");
+
+////////////////////////////////////////////////////////////////////////////////
+
+void BnCrypto::readVector(const Parcel &data, Vector<uint8_t> &vector) const {
+    uint32_t size = data.readInt32();
+    vector.insertAt((size_t)0, size);
+    data.read(vector.editArray(), size);
+}
+
+void BnCrypto::writeVector(Parcel *reply, Vector<uint8_t> const &vector) const {
+    reply->writeInt32(vector.size());
+    reply->write(vector.array(), vector.size());
+}
+
+status_t BnCrypto::onTransact(
+    uint32_t code, const Parcel &data, Parcel *reply, uint32_t flags) {
+    switch (code) {
+        case INIT_CHECK:
+        {
+            CHECK_INTERFACE(ICrypto, data, reply);
+            reply->writeInt32(initCheck());
+
+            return OK;
+        }
+
+        case IS_CRYPTO_SUPPORTED:
+        {
+            CHECK_INTERFACE(ICrypto, data, reply);
+            uint8_t uuid[16];
+            data.read(uuid, sizeof(uuid));
+            reply->writeInt32(isCryptoSchemeSupported(uuid));
+
+            return OK;
+        }
+
+        case CREATE_PLUGIN:
+        {
+            CHECK_INTERFACE(ICrypto, data, reply);
+
+            uint8_t uuid[16];
+            data.read(uuid, sizeof(uuid));
+
+            size_t opaqueSize = data.readInt32();
+            void *opaqueData = NULL;
+
+            const size_t kMaxOpaqueSize = 100 * 1024;
+            if (opaqueSize > kMaxOpaqueSize) {
+                return BAD_VALUE;
+            }
+
+            opaqueData = malloc(opaqueSize);
+            if (NULL == opaqueData) {
+                return NO_MEMORY;
+            }
+
+            data.read(opaqueData, opaqueSize);
+            reply->writeInt32(createPlugin(uuid, opaqueData, opaqueSize));
+
+            free(opaqueData);
+            opaqueData = NULL;
+
+            return OK;
+        }
+
+        case DESTROY_PLUGIN:
+        {
+            CHECK_INTERFACE(ICrypto, data, reply);
+            reply->writeInt32(destroyPlugin());
+
+            return OK;
+        }
+
+        case REQUIRES_SECURE_COMPONENT:
+        {
+            CHECK_INTERFACE(ICrypto, data, reply);
+
+            const char *mime = data.readCString();
+            if (mime == NULL) {
+                reply->writeInt32(BAD_VALUE);
+            } else {
+                reply->writeInt32(requiresSecureDecoderComponent(mime));
+            }
+
+            return OK;
+        }
+
+        case DECRYPT:
+        {
+            CHECK_INTERFACE(ICrypto, data, reply);
+
+            CryptoPlugin::Mode mode = (CryptoPlugin::Mode)data.readInt32();
+            CryptoPlugin::Pattern pattern;
+            pattern.mEncryptBlocks = data.readInt32();
+            pattern.mSkipBlocks = data.readInt32();
+
+            uint8_t key[16];
+            data.read(key, sizeof(key));
+
+            uint8_t iv[16];
+            data.read(iv, sizeof(iv));
+
+            size_t totalSize = data.readInt32();
+            sp<IMemory> source =
+                interface_cast<IMemory>(data.readStrongBinder());
+            if (source == NULL) {
+                reply->writeInt32(BAD_VALUE);
+                return OK;
+            }
+            int32_t offset = data.readInt32();
+
+            int32_t numSubSamples = data.readInt32();
+            if (numSubSamples < 0 || numSubSamples > 0xffff) {
+                reply->writeInt32(BAD_VALUE);
+                return OK;
+            }
+
+            CryptoPlugin::SubSample *subSamples =
+                    new CryptoPlugin::SubSample[numSubSamples];
+
+            data.read(subSamples,
+                    sizeof(CryptoPlugin::SubSample) * numSubSamples);
+
+            DestinationBuffer destination;
+            destination.mType = (DestinationType)data.readInt32();
+            if (destination.mType == kDestinationTypeNativeHandle) {
+                destination.mHandle = data.readNativeHandle();
+                if (destination.mHandle == NULL) {
+                    reply->writeInt32(BAD_VALUE);
+                    return OK;
+                }
+            } else if (destination.mType == kDestinationTypeSharedMemory) {
+                destination.mSharedMemory =
+                        interface_cast<IMemory>(data.readStrongBinder());
+                if (destination.mSharedMemory == NULL) {
+                    reply->writeInt32(BAD_VALUE);
+                    return OK;
+                }
+            }
+
+            AString errorDetailMsg;
+            ssize_t result;
+
+            size_t sumSubsampleSizes = 0;
+            bool overflow = false;
+            for (int32_t i = 0; i < numSubSamples; ++i) {
+                CryptoPlugin::SubSample &ss = subSamples[i];
+                if (sumSubsampleSizes <= SIZE_MAX - ss.mNumBytesOfEncryptedData) {
+                    sumSubsampleSizes += ss.mNumBytesOfEncryptedData;
+                } else {
+                    overflow = true;
+                }
+                if (sumSubsampleSizes <= SIZE_MAX - ss.mNumBytesOfClearData) {
+                    sumSubsampleSizes += ss.mNumBytesOfClearData;
+                } else {
+                    overflow = true;
+                }
+            }
+
+            if (overflow || sumSubsampleSizes != totalSize) {
+                result = -EINVAL;
+            } else if (totalSize > source->size()) {
+                result = -EINVAL;
+            } else if ((size_t)offset > source->size() - totalSize) {
+                result = -EINVAL;
+            } else {
+                result = decrypt(key, iv, mode, pattern, source, offset,
+                        subSamples, numSubSamples, destination, &errorDetailMsg);
+            }
+
+            reply->writeInt32(result);
+
+            if (isCryptoError(result)) {
+                reply->writeCString(errorDetailMsg.c_str());
+            }
+
+            if (destination.mType == kDestinationTypeNativeHandle) {
+                int err;
+                if ((err = native_handle_close(destination.mHandle)) < 0) {
+                    ALOGW("secure buffer native_handle_close failed: %d", err);
+                }
+                if ((err = native_handle_delete(destination.mHandle)) < 0) {
+                    ALOGW("secure buffer native_handle_delete failed: %d", err);
+                }
+            }
+
+            delete[] subSamples;
+            subSamples = NULL;
+
+            return OK;
+        }
+
+        case NOTIFY_RESOLUTION:
+        {
+            CHECK_INTERFACE(ICrypto, data, reply);
+
+            int32_t width = data.readInt32();
+            int32_t height = data.readInt32();
+            notifyResolution(width, height);
+
+            return OK;
+        }
+
+        case SET_MEDIADRM_SESSION:
+        {
+            CHECK_INTERFACE(IDrm, data, reply);
+            Vector<uint8_t> sessionId;
+            readVector(data, sessionId);
+            reply->writeInt32(setMediaDrmSession(sessionId));
+            return OK;
+        }
+
+        default:
+            return BBinder::onTransact(code, data, reply, flags);
+    }
+}
+
+}  // namespace android
diff --git a/drm/libmediadrm/IDrm.cpp b/drm/libmediadrm/IDrm.cpp
new file mode 100644
index 0000000..4e47112
--- /dev/null
+++ b/drm/libmediadrm/IDrm.cpp
@@ -0,0 +1,930 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "IDrm"
+#include <utils/Log.h>
+
+#include <binder/Parcel.h>
+#include <media/IDrm.h>
+#include <media/stagefright/MediaErrors.h>
+#include <media/stagefright/foundation/ADebug.h>
+#include <media/stagefright/foundation/AString.h>
+
+namespace android {
+
+enum {
+    INIT_CHECK = IBinder::FIRST_CALL_TRANSACTION,
+    IS_CRYPTO_SUPPORTED,
+    CREATE_PLUGIN,
+    DESTROY_PLUGIN,
+    OPEN_SESSION,
+    CLOSE_SESSION,
+    GET_KEY_REQUEST,
+    PROVIDE_KEY_RESPONSE,
+    REMOVE_KEYS,
+    RESTORE_KEYS,
+    QUERY_KEY_STATUS,
+    GET_PROVISION_REQUEST,
+    PROVIDE_PROVISION_RESPONSE,
+    GET_SECURE_STOPS,
+    RELEASE_SECURE_STOPS,
+    GET_PROPERTY_STRING,
+    GET_PROPERTY_BYTE_ARRAY,
+    SET_PROPERTY_STRING,
+    SET_PROPERTY_BYTE_ARRAY,
+    SET_CIPHER_ALGORITHM,
+    SET_MAC_ALGORITHM,
+    ENCRYPT,
+    DECRYPT,
+    SIGN,
+    SIGN_RSA,
+    VERIFY,
+    SET_LISTENER,
+    GET_SECURE_STOP,
+    RELEASE_ALL_SECURE_STOPS
+};
+
+struct BpDrm : public BpInterface<IDrm> {
+    explicit BpDrm(const sp<IBinder> &impl)
+        : BpInterface<IDrm>(impl) {
+    }
+
+    virtual status_t initCheck() const {
+        Parcel data, reply;
+        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+        status_t status = remote()->transact(INIT_CHECK, data, &reply);
+        if (status != OK) {
+            return status;
+        }
+
+        return reply.readInt32();
+    }
+
+    virtual bool isCryptoSchemeSupported(const uint8_t uuid[16], const String8 &mimeType) {
+        Parcel data, reply;
+        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+        data.write(uuid, 16);
+        data.writeString8(mimeType);
+        status_t status = remote()->transact(IS_CRYPTO_SUPPORTED, data, &reply);
+        if (status != OK) {
+            ALOGE("isCryptoSchemeSupported: binder call failed: %d", status);
+            return false;
+        }
+
+        return reply.readInt32() != 0;
+    }
+
+    virtual status_t createPlugin(const uint8_t uuid[16],
+                                  const String8& appPackageName) {
+        Parcel data, reply;
+        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+        data.write(uuid, 16);
+        data.writeString8(appPackageName);
+        status_t status = remote()->transact(CREATE_PLUGIN, data, &reply);
+        if (status != OK) {
+            ALOGE("createPlugin: binder call failed: %d", status);
+            return status;
+        }
+
+        return reply.readInt32();
+    }
+
+    virtual status_t destroyPlugin() {
+        Parcel data, reply;
+        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+        status_t status = remote()->transact(DESTROY_PLUGIN, data, &reply);
+        if (status != OK) {
+            return status;
+        }
+
+        return reply.readInt32();
+    }
+
+    virtual status_t openSession(Vector<uint8_t> &sessionId) {
+        Parcel data, reply;
+        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+
+        status_t status = remote()->transact(OPEN_SESSION, data, &reply);
+        if (status != OK) {
+            return status;
+        }
+        readVector(reply, sessionId);
+
+        return reply.readInt32();
+    }
+
+    virtual status_t closeSession(Vector<uint8_t> const &sessionId) {
+        Parcel data, reply;
+        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+
+        writeVector(data, sessionId);
+        status_t status = remote()->transact(CLOSE_SESSION, data, &reply);
+        if (status != OK) {
+            return status;
+        }
+
+        return reply.readInt32();
+    }
+
+    virtual status_t
+        getKeyRequest(Vector<uint8_t> const &sessionId,
+                      Vector<uint8_t> const &initData,
+                      String8 const &mimeType, DrmPlugin::KeyType keyType,
+                      KeyedVector<String8, String8> const &optionalParameters,
+                      Vector<uint8_t> &request, String8 &defaultUrl,
+                      DrmPlugin::KeyRequestType *keyRequestType) {
+        Parcel data, reply;
+        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+
+        writeVector(data, sessionId);
+        writeVector(data, initData);
+        data.writeString8(mimeType);
+        data.writeInt32((uint32_t)keyType);
+
+        data.writeInt32(optionalParameters.size());
+        for (size_t i = 0; i < optionalParameters.size(); ++i) {
+            data.writeString8(optionalParameters.keyAt(i));
+            data.writeString8(optionalParameters.valueAt(i));
+        }
+
+        status_t status = remote()->transact(GET_KEY_REQUEST, data, &reply);
+        if (status != OK) {
+            return status;
+        }
+
+        readVector(reply, request);
+        defaultUrl = reply.readString8();
+        *keyRequestType = static_cast<DrmPlugin::KeyRequestType>(reply.readInt32());
+
+        return reply.readInt32();
+    }
+
+    virtual status_t provideKeyResponse(Vector<uint8_t> const &sessionId,
+                                        Vector<uint8_t> const &response,
+                                        Vector<uint8_t> &keySetId) {
+        Parcel data, reply;
+        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+        writeVector(data, sessionId);
+        writeVector(data, response);
+
+        status_t status = remote()->transact(PROVIDE_KEY_RESPONSE, data, &reply);
+        if (status != OK) {
+            return status;
+        }
+
+        readVector(reply, keySetId);
+
+        return reply.readInt32();
+    }
+
+    virtual status_t removeKeys(Vector<uint8_t> const &keySetId) {
+        Parcel data, reply;
+        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+
+        writeVector(data, keySetId);
+        status_t status = remote()->transact(REMOVE_KEYS, data, &reply);
+        if (status != OK) {
+            return status;
+        }
+
+        return reply.readInt32();
+    }
+
+    virtual status_t restoreKeys(Vector<uint8_t> const &sessionId,
+                                 Vector<uint8_t> const &keySetId) {
+        Parcel data, reply;
+        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+
+        writeVector(data, sessionId);
+        writeVector(data, keySetId);
+        status_t status = remote()->transact(RESTORE_KEYS, data, &reply);
+        if (status != OK) {
+            return status;
+        }
+
+        return reply.readInt32();
+    }
+
+    virtual status_t queryKeyStatus(Vector<uint8_t> const &sessionId,
+                                        KeyedVector<String8, String8> &infoMap) const {
+        Parcel data, reply;
+        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+
+        writeVector(data, sessionId);
+        status_t status = remote()->transact(QUERY_KEY_STATUS, data, &reply);
+        if (status != OK) {
+            return status;
+        }
+
+        infoMap.clear();
+        size_t count = reply.readInt32();
+        for (size_t i = 0; i < count; i++) {
+            String8 key = reply.readString8();
+            String8 value = reply.readString8();
+            infoMap.add(key, value);
+        }
+        return reply.readInt32();
+    }
+
+    virtual status_t getProvisionRequest(String8 const &certType,
+                                         String8 const &certAuthority,
+                                         Vector<uint8_t> &request,
+                                         String8 &defaultUrl) {
+        Parcel data, reply;
+        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+
+        data.writeString8(certType);
+        data.writeString8(certAuthority);
+        status_t status = remote()->transact(GET_PROVISION_REQUEST, data, &reply);
+        if (status != OK) {
+            return status;
+        }
+
+        readVector(reply, request);
+        defaultUrl = reply.readString8();
+
+        return reply.readInt32();
+    }
+
+    virtual status_t provideProvisionResponse(Vector<uint8_t> const &response,
+                                              Vector<uint8_t> &certificate,
+                                              Vector<uint8_t> &wrappedKey) {
+        Parcel data, reply;
+        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+
+        writeVector(data, response);
+        status_t status = remote()->transact(PROVIDE_PROVISION_RESPONSE, data, &reply);
+        if (status != OK) {
+            return status;
+        }
+
+        readVector(reply, certificate);
+        readVector(reply, wrappedKey);
+
+        return reply.readInt32();
+    }
+
+    virtual status_t getSecureStops(List<Vector<uint8_t> > &secureStops) {
+        Parcel data, reply;
+        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+
+        status_t status = remote()->transact(GET_SECURE_STOPS, data, &reply);
+        if (status != OK) {
+            return status;
+        }
+
+        secureStops.clear();
+        uint32_t count = reply.readInt32();
+        for (size_t i = 0; i < count; i++) {
+            Vector<uint8_t> secureStop;
+            readVector(reply, secureStop);
+            secureStops.push_back(secureStop);
+        }
+        return reply.readInt32();
+    }
+
+    virtual status_t getSecureStop(Vector<uint8_t> const &ssid, Vector<uint8_t> &secureStop) {
+        Parcel data, reply;
+        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+
+        writeVector(data, ssid);
+        status_t status = remote()->transact(GET_SECURE_STOP, data, &reply);
+        if (status != OK) {
+            return status;
+        }
+
+        readVector(reply, secureStop);
+        return reply.readInt32();
+    }
+
+    virtual status_t releaseSecureStops(Vector<uint8_t> const &ssRelease) {
+        Parcel data, reply;
+        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+
+        writeVector(data, ssRelease);
+        status_t status = remote()->transact(RELEASE_SECURE_STOPS, data, &reply);
+        if (status != OK) {
+            return status;
+        }
+
+        return reply.readInt32();
+    }
+
+    virtual status_t releaseAllSecureStops() {
+        Parcel data, reply;
+        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+
+        status_t status = remote()->transact(RELEASE_ALL_SECURE_STOPS, data, &reply);
+        if (status != OK) {
+            return status;
+        }
+
+        return reply.readInt32();
+    }
+
+    virtual status_t getPropertyString(String8 const &name, String8 &value) const {
+        Parcel data, reply;
+        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+
+        data.writeString8(name);
+        status_t status = remote()->transact(GET_PROPERTY_STRING, data, &reply);
+        if (status != OK) {
+            return status;
+        }
+
+        value = reply.readString8();
+        return reply.readInt32();
+    }
+
+    virtual status_t getPropertyByteArray(String8 const &name, Vector<uint8_t> &value) const {
+        Parcel data, reply;
+        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+
+        data.writeString8(name);
+        status_t status = remote()->transact(GET_PROPERTY_BYTE_ARRAY, data, &reply);
+        if (status != OK) {
+            return status;
+        }
+
+        readVector(reply, value);
+        return reply.readInt32();
+    }
+
+    virtual status_t setPropertyString(String8 const &name, String8 const &value) const {
+        Parcel data, reply;
+        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+
+        data.writeString8(name);
+        data.writeString8(value);
+        status_t status = remote()->transact(SET_PROPERTY_STRING, data, &reply);
+        if (status != OK) {
+            return status;
+        }
+
+        return reply.readInt32();
+    }
+
+    virtual status_t setPropertyByteArray(String8 const &name,
+                                          Vector<uint8_t> const &value) const {
+        Parcel data, reply;
+        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+
+        data.writeString8(name);
+        writeVector(data, value);
+        status_t status = remote()->transact(SET_PROPERTY_BYTE_ARRAY, data, &reply);
+        if (status != OK) {
+            return status;
+        }
+
+        return reply.readInt32();
+    }
+
+
+    virtual status_t setCipherAlgorithm(Vector<uint8_t> const &sessionId,
+                                        String8 const &algorithm) {
+        Parcel data, reply;
+        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+
+        writeVector(data, sessionId);
+        data.writeString8(algorithm);
+        status_t status = remote()->transact(SET_CIPHER_ALGORITHM, data, &reply);
+        if (status != OK) {
+            return status;
+        }
+        return reply.readInt32();
+    }
+
+    virtual status_t setMacAlgorithm(Vector<uint8_t> const &sessionId,
+                                     String8 const &algorithm) {
+        Parcel data, reply;
+        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+
+        writeVector(data, sessionId);
+        data.writeString8(algorithm);
+        status_t status = remote()->transact(SET_MAC_ALGORITHM, data, &reply);
+        if (status != OK) {
+            return status;
+        }
+        return reply.readInt32();
+    }
+
+    virtual status_t encrypt(Vector<uint8_t> const &sessionId,
+                             Vector<uint8_t> const &keyId,
+                             Vector<uint8_t> const &input,
+                             Vector<uint8_t> const &iv,
+                             Vector<uint8_t> &output) {
+        Parcel data, reply;
+        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+
+        writeVector(data, sessionId);
+        writeVector(data, keyId);
+        writeVector(data, input);
+        writeVector(data, iv);
+
+        status_t status = remote()->transact(ENCRYPT, data, &reply);
+        if (status != OK) {
+            return status;
+        }
+        readVector(reply, output);
+
+        return reply.readInt32();
+    }
+
+    virtual status_t decrypt(Vector<uint8_t> const &sessionId,
+                             Vector<uint8_t> const &keyId,
+                             Vector<uint8_t> const &input,
+                             Vector<uint8_t> const &iv,
+                             Vector<uint8_t> &output) {
+        Parcel data, reply;
+        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+
+        writeVector(data, sessionId);
+        writeVector(data, keyId);
+        writeVector(data, input);
+        writeVector(data, iv);
+
+        status_t status = remote()->transact(DECRYPT, data, &reply);
+        if (status != OK) {
+            return status;
+        }
+        readVector(reply, output);
+
+        return reply.readInt32();
+    }
+
+    virtual status_t sign(Vector<uint8_t> const &sessionId,
+                          Vector<uint8_t> const &keyId,
+                          Vector<uint8_t> const &message,
+                          Vector<uint8_t> &signature) {
+        Parcel data, reply;
+        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+
+        writeVector(data, sessionId);
+        writeVector(data, keyId);
+        writeVector(data, message);
+
+        status_t status = remote()->transact(SIGN, data, &reply);
+        if (status != OK) {
+            return status;
+        }
+        readVector(reply, signature);
+
+        return reply.readInt32();
+    }
+
+    virtual status_t verify(Vector<uint8_t> const &sessionId,
+                            Vector<uint8_t> const &keyId,
+                            Vector<uint8_t> const &message,
+                            Vector<uint8_t> const &signature,
+                            bool &match) {
+        Parcel data, reply;
+        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+
+        writeVector(data, sessionId);
+        writeVector(data, keyId);
+        writeVector(data, message);
+        writeVector(data, signature);
+
+        status_t status = remote()->transact(VERIFY, data, &reply);
+        if (status != OK) {
+            return status;
+        }
+        match = (bool)reply.readInt32();
+        return reply.readInt32();
+    }
+
+    virtual status_t signRSA(Vector<uint8_t> const &sessionId,
+                             String8 const &algorithm,
+                             Vector<uint8_t> const &message,
+                             Vector<uint8_t> const &wrappedKey,
+                             Vector<uint8_t> &signature) {
+        Parcel data, reply;
+        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+
+        writeVector(data, sessionId);
+        data.writeString8(algorithm);
+        writeVector(data, message);
+        writeVector(data, wrappedKey);
+
+        status_t status = remote()->transact(SIGN_RSA, data, &reply);
+        if (status != OK) {
+            return status;
+        }
+        readVector(reply, signature);
+
+        return reply.readInt32();
+    }
+
+    virtual status_t setListener(const sp<IDrmClient>& listener) {
+        Parcel data, reply;
+        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
+        data.writeStrongBinder(IInterface::asBinder(listener));
+        status_t status = remote()->transact(SET_LISTENER, data, &reply);
+        if (status != OK) {
+            return status;
+        }
+        return reply.readInt32();
+    }
+
+private:
+    void readVector(Parcel &reply, Vector<uint8_t> &vector) const {
+        uint32_t size = reply.readInt32();
+        vector.insertAt((size_t)0, size);
+        reply.read(vector.editArray(), size);
+    }
+
+    void writeVector(Parcel &data, Vector<uint8_t> const &vector) const {
+        data.writeInt32(vector.size());
+        data.write(vector.array(), vector.size());
+    }
+
+    DISALLOW_EVIL_CONSTRUCTORS(BpDrm);
+};
+
+IMPLEMENT_META_INTERFACE(Drm, "android.drm.IDrm");
+
+////////////////////////////////////////////////////////////////////////////////
+
+void BnDrm::readVector(const Parcel &data, Vector<uint8_t> &vector) const {
+    uint32_t size = data.readInt32();
+    vector.insertAt((size_t)0, size);
+    data.read(vector.editArray(), size);
+}
+
+void BnDrm::writeVector(Parcel *reply, Vector<uint8_t> const &vector) const {
+    reply->writeInt32(vector.size());
+    reply->write(vector.array(), vector.size());
+}
+
+status_t BnDrm::onTransact(
+    uint32_t code, const Parcel &data, Parcel *reply, uint32_t flags) {
+    switch (code) {
+        case INIT_CHECK:
+        {
+            CHECK_INTERFACE(IDrm, data, reply);
+            reply->writeInt32(initCheck());
+            return OK;
+        }
+
+        case IS_CRYPTO_SUPPORTED:
+        {
+            CHECK_INTERFACE(IDrm, data, reply);
+            uint8_t uuid[16];
+            data.read(uuid, sizeof(uuid));
+            String8 mimeType = data.readString8();
+            reply->writeInt32(isCryptoSchemeSupported(uuid, mimeType));
+            return OK;
+        }
+
+        case CREATE_PLUGIN:
+        {
+            CHECK_INTERFACE(IDrm, data, reply);
+            uint8_t uuid[16];
+            data.read(uuid, sizeof(uuid));
+            String8 appPackageName = data.readString8();
+            reply->writeInt32(createPlugin(uuid, appPackageName));
+            return OK;
+        }
+
+        case DESTROY_PLUGIN:
+        {
+            CHECK_INTERFACE(IDrm, data, reply);
+            reply->writeInt32(destroyPlugin());
+            return OK;
+        }
+
+        case OPEN_SESSION:
+        {
+            CHECK_INTERFACE(IDrm, data, reply);
+            Vector<uint8_t> sessionId;
+            status_t result = openSession(sessionId);
+            writeVector(reply, sessionId);
+            reply->writeInt32(result);
+            return OK;
+        }
+
+        case CLOSE_SESSION:
+        {
+            CHECK_INTERFACE(IDrm, data, reply);
+            Vector<uint8_t> sessionId;
+            readVector(data, sessionId);
+            reply->writeInt32(closeSession(sessionId));
+            return OK;
+        }
+
+        case GET_KEY_REQUEST:
+        {
+            CHECK_INTERFACE(IDrm, data, reply);
+            Vector<uint8_t> sessionId, initData;
+
+            readVector(data, sessionId);
+            readVector(data, initData);
+            String8 mimeType = data.readString8();
+            DrmPlugin::KeyType keyType = (DrmPlugin::KeyType)data.readInt32();
+
+            KeyedVector<String8, String8> optionalParameters;
+            uint32_t count = data.readInt32();
+            for (size_t i = 0; i < count; ++i) {
+                String8 key, value;
+                key = data.readString8();
+                value = data.readString8();
+                optionalParameters.add(key, value);
+            }
+
+            Vector<uint8_t> request;
+            String8 defaultUrl;
+            DrmPlugin::KeyRequestType keyRequestType = DrmPlugin::kKeyRequestType_Unknown;
+
+            status_t result = getKeyRequest(sessionId, initData, mimeType,
+                    keyType, optionalParameters, request, defaultUrl,
+                    &keyRequestType);
+
+            writeVector(reply, request);
+            reply->writeString8(defaultUrl);
+            reply->writeInt32(static_cast<int32_t>(keyRequestType));
+            reply->writeInt32(result);
+            return OK;
+        }
+
+        case PROVIDE_KEY_RESPONSE:
+        {
+            CHECK_INTERFACE(IDrm, data, reply);
+            Vector<uint8_t> sessionId, response, keySetId;
+            readVector(data, sessionId);
+            readVector(data, response);
+            uint32_t result = provideKeyResponse(sessionId, response, keySetId);
+            writeVector(reply, keySetId);
+            reply->writeInt32(result);
+            return OK;
+        }
+
+        case REMOVE_KEYS:
+        {
+            CHECK_INTERFACE(IDrm, data, reply);
+            Vector<uint8_t> keySetId;
+            readVector(data, keySetId);
+            reply->writeInt32(removeKeys(keySetId));
+            return OK;
+        }
+
+        case RESTORE_KEYS:
+        {
+            CHECK_INTERFACE(IDrm, data, reply);
+            Vector<uint8_t> sessionId, keySetId;
+            readVector(data, sessionId);
+            readVector(data, keySetId);
+            reply->writeInt32(restoreKeys(sessionId, keySetId));
+            return OK;
+        }
+
+        case QUERY_KEY_STATUS:
+        {
+            CHECK_INTERFACE(IDrm, data, reply);
+            Vector<uint8_t> sessionId;
+            readVector(data, sessionId);
+            KeyedVector<String8, String8> infoMap;
+            status_t result = queryKeyStatus(sessionId, infoMap);
+            size_t count = infoMap.size();
+            reply->writeInt32(count);
+            for (size_t i = 0; i < count; ++i) {
+                reply->writeString8(infoMap.keyAt(i));
+                reply->writeString8(infoMap.valueAt(i));
+            }
+            reply->writeInt32(result);
+            return OK;
+        }
+
+        case GET_PROVISION_REQUEST:
+        {
+            CHECK_INTERFACE(IDrm, data, reply);
+            String8 certType = data.readString8();
+            String8 certAuthority = data.readString8();
+
+            Vector<uint8_t> request;
+            String8 defaultUrl;
+            status_t result = getProvisionRequest(certType, certAuthority,
+                                                  request, defaultUrl);
+            writeVector(reply, request);
+            reply->writeString8(defaultUrl);
+            reply->writeInt32(result);
+            return OK;
+        }
+
+        case PROVIDE_PROVISION_RESPONSE:
+        {
+            CHECK_INTERFACE(IDrm, data, reply);
+            Vector<uint8_t> response;
+            Vector<uint8_t> certificate;
+            Vector<uint8_t> wrappedKey;
+            readVector(data, response);
+            status_t result = provideProvisionResponse(response, certificate, wrappedKey);
+            writeVector(reply, certificate);
+            writeVector(reply, wrappedKey);
+            reply->writeInt32(result);
+            return OK;
+        }
+
+        case GET_SECURE_STOPS:
+        {
+            CHECK_INTERFACE(IDrm, data, reply);
+            List<Vector<uint8_t> > secureStops;
+            status_t result = getSecureStops(secureStops);
+            size_t count = secureStops.size();
+            reply->writeInt32(count);
+            List<Vector<uint8_t> >::iterator iter = secureStops.begin();
+            while(iter != secureStops.end()) {
+                size_t size = iter->size();
+                reply->writeInt32(size);
+                reply->write(iter->array(), iter->size());
+                iter++;
+            }
+            reply->writeInt32(result);
+            return OK;
+        }
+
+        case GET_SECURE_STOP:
+        {
+            CHECK_INTERFACE(IDrm, data, reply);
+            Vector<uint8_t> ssid, secureStop;
+            readVector(data, ssid);
+            status_t result = getSecureStop(ssid, secureStop);
+            writeVector(reply, secureStop);
+            reply->writeInt32(result);
+            return OK;
+        }
+
+        case RELEASE_SECURE_STOPS:
+        {
+            CHECK_INTERFACE(IDrm, data, reply);
+            Vector<uint8_t> ssRelease;
+            readVector(data, ssRelease);
+            reply->writeInt32(releaseSecureStops(ssRelease));
+            return OK;
+        }
+
+        case RELEASE_ALL_SECURE_STOPS:
+        {
+            CHECK_INTERFACE(IDrm, data, reply);
+            reply->writeInt32(releaseAllSecureStops());
+            return OK;
+        }
+
+        case GET_PROPERTY_STRING:
+        {
+            CHECK_INTERFACE(IDrm, data, reply);
+            String8 name = data.readString8();
+            String8 value;
+            status_t result = getPropertyString(name, value);
+            reply->writeString8(value);
+            reply->writeInt32(result);
+            return OK;
+        }
+
+        case GET_PROPERTY_BYTE_ARRAY:
+        {
+            CHECK_INTERFACE(IDrm, data, reply);
+            String8 name = data.readString8();
+            Vector<uint8_t> value;
+            status_t result = getPropertyByteArray(name, value);
+            writeVector(reply, value);
+            reply->writeInt32(result);
+            return OK;
+        }
+
+        case SET_PROPERTY_STRING:
+        {
+            CHECK_INTERFACE(IDrm, data, reply);
+            String8 name = data.readString8();
+            String8 value = data.readString8();
+            reply->writeInt32(setPropertyString(name, value));
+            return OK;
+        }
+
+        case SET_PROPERTY_BYTE_ARRAY:
+        {
+            CHECK_INTERFACE(IDrm, data, reply);
+            String8 name = data.readString8();
+            Vector<uint8_t> value;
+            readVector(data, value);
+            reply->writeInt32(setPropertyByteArray(name, value));
+            return OK;
+        }
+
+        case SET_CIPHER_ALGORITHM:
+        {
+            CHECK_INTERFACE(IDrm, data, reply);
+            Vector<uint8_t> sessionId;
+            readVector(data, sessionId);
+            String8 algorithm = data.readString8();
+            reply->writeInt32(setCipherAlgorithm(sessionId, algorithm));
+            return OK;
+        }
+
+        case SET_MAC_ALGORITHM:
+        {
+            CHECK_INTERFACE(IDrm, data, reply);
+            Vector<uint8_t> sessionId;
+            readVector(data, sessionId);
+            String8 algorithm = data.readString8();
+            reply->writeInt32(setMacAlgorithm(sessionId, algorithm));
+            return OK;
+        }
+
+        case ENCRYPT:
+        {
+            CHECK_INTERFACE(IDrm, data, reply);
+            Vector<uint8_t> sessionId, keyId, input, iv, output;
+            readVector(data, sessionId);
+            readVector(data, keyId);
+            readVector(data, input);
+            readVector(data, iv);
+            uint32_t result = encrypt(sessionId, keyId, input, iv, output);
+            writeVector(reply, output);
+            reply->writeInt32(result);
+            return OK;
+        }
+
+        case DECRYPT:
+        {
+            CHECK_INTERFACE(IDrm, data, reply);
+            Vector<uint8_t> sessionId, keyId, input, iv, output;
+            readVector(data, sessionId);
+            readVector(data, keyId);
+            readVector(data, input);
+            readVector(data, iv);
+            uint32_t result = decrypt(sessionId, keyId, input, iv, output);
+            writeVector(reply, output);
+            reply->writeInt32(result);
+            return OK;
+        }
+
+        case SIGN:
+        {
+            CHECK_INTERFACE(IDrm, data, reply);
+            Vector<uint8_t> sessionId, keyId, message, signature;
+            readVector(data, sessionId);
+            readVector(data, keyId);
+            readVector(data, message);
+            uint32_t result = sign(sessionId, keyId, message, signature);
+            writeVector(reply, signature);
+            reply->writeInt32(result);
+            return OK;
+        }
+
+        case VERIFY:
+        {
+            CHECK_INTERFACE(IDrm, data, reply);
+            Vector<uint8_t> sessionId, keyId, message, signature;
+            readVector(data, sessionId);
+            readVector(data, keyId);
+            readVector(data, message);
+            readVector(data, signature);
+            bool match = false;
+            uint32_t result = verify(sessionId, keyId, message, signature, match);
+            reply->writeInt32(match);
+            reply->writeInt32(result);
+            return OK;
+        }
+
+        case SIGN_RSA:
+        {
+            CHECK_INTERFACE(IDrm, data, reply);
+            Vector<uint8_t> sessionId, message, wrappedKey, signature;
+            readVector(data, sessionId);
+            String8 algorithm = data.readString8();
+            readVector(data, message);
+            readVector(data, wrappedKey);
+            uint32_t result = signRSA(sessionId, algorithm, message, wrappedKey, signature);
+            writeVector(reply, signature);
+            reply->writeInt32(result);
+            return OK;
+        }
+
+    case SET_LISTENER: {
+        CHECK_INTERFACE(IDrm, data, reply);
+        sp<IDrmClient> listener =
+            interface_cast<IDrmClient>(data.readStrongBinder());
+        reply->writeInt32(setListener(listener));
+        return NO_ERROR;
+    } break;
+
+    default:
+        return BBinder::onTransact(code, data, reply, flags);
+    }
+}
+
+}  // namespace android
diff --git a/media/libmedia/IDrmClient.cpp b/drm/libmediadrm/IDrmClient.cpp
similarity index 100%
rename from media/libmedia/IDrmClient.cpp
rename to drm/libmediadrm/IDrmClient.cpp
diff --git a/drm/libmediadrm/IMediaDrmService.cpp b/drm/libmediadrm/IMediaDrmService.cpp
new file mode 100644
index 0000000..84812dc
--- /dev/null
+++ b/drm/libmediadrm/IMediaDrmService.cpp
@@ -0,0 +1,88 @@
+/*
+**
+** Copyright 2015, The Android Open Source Project
+**
+** Licensed under the Apache License, Version 2.0 (the "License");
+** you may not use this file except in compliance with the License.
+** You may obtain a copy of the License at
+**
+**     http://www.apache.org/licenses/LICENSE-2.0
+**
+** Unless required by applicable law or agreed to in writing, software
+** distributed under the License is distributed on an "AS IS" BASIS,
+** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+** See the License for the specific language governing permissions and
+** limitations under the License.
+*/
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <binder/Parcel.h>
+#include <binder/IMemory.h>
+#include <media/ICrypto.h>
+#include <media/IDrm.h>
+#include <media/IMediaDrmService.h>
+
+#include <utils/Errors.h>  // for status_t
+#include <utils/String8.h>
+
+namespace android {
+
+enum {
+    MAKE_CRYPTO = IBinder::FIRST_CALL_TRANSACTION,
+    MAKE_DRM,
+};
+
+class BpMediaDrmService: public BpInterface<IMediaDrmService>
+{
+public:
+    explicit BpMediaDrmService(const sp<IBinder>& impl)
+        : BpInterface<IMediaDrmService>(impl)
+    {
+    }
+
+    virtual sp<ICrypto> makeCrypto() {
+        Parcel data, reply;
+        data.writeInterfaceToken(IMediaDrmService::getInterfaceDescriptor());
+        remote()->transact(MAKE_CRYPTO, data, &reply);
+        return interface_cast<ICrypto>(reply.readStrongBinder());
+    }
+
+    virtual sp<IDrm> makeDrm() {
+        Parcel data, reply;
+        data.writeInterfaceToken(IMediaDrmService::getInterfaceDescriptor());
+        remote()->transact(MAKE_DRM, data, &reply);
+        return interface_cast<IDrm>(reply.readStrongBinder());
+    }
+
+};
+
+IMPLEMENT_META_INTERFACE(MediaDrmService, "android.media.IMediaDrmService");
+
+// ----------------------------------------------------------------------
+
+status_t BnMediaDrmService::onTransact(
+    uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
+{
+    switch (code) {
+        case MAKE_CRYPTO: {
+            CHECK_INTERFACE(IMediaDrmService, data, reply);
+            sp<ICrypto> crypto = makeCrypto();
+            reply->writeStrongBinder(IInterface::asBinder(crypto));
+            return NO_ERROR;
+        } break;
+        case MAKE_DRM: {
+            CHECK_INTERFACE(IMediaDrmService, data, reply);
+            sp<IDrm> drm = makeDrm();
+            reply->writeStrongBinder(IInterface::asBinder(drm));
+            return NO_ERROR;
+        } break;
+        default:
+            return BBinder::onTransact(code, data, reply, flags);
+    }
+}
+
+// ----------------------------------------------------------------------------
+
+} // namespace android
diff --git a/drm/libmediadrm/MediaCasDefs.cpp b/drm/libmediadrm/MediaCasDefs.cpp
new file mode 100644
index 0000000..9c2ba38
--- /dev/null
+++ b/drm/libmediadrm/MediaCasDefs.cpp
@@ -0,0 +1,184 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+//#define LOG_NDEBUG 0
+#define LOG_TAG "MediaCas"
+
+#include <media/MediaCasDefs.h>
+#include <utils/Log.h>
+#include <binder/IMemory.h>
+
+namespace android {
+namespace media {
+
+///////////////////////////////////////////////////////////////////////////////
+namespace MediaCas {
+
+status_t ParcelableCasData::readFromParcel(const Parcel* parcel) {
+    return parcel->readByteVector(this);
+}
+
+status_t ParcelableCasData::writeToParcel(Parcel* parcel) const  {
+    return parcel->writeByteVector(*this);
+}
+
+///////////////////////////////////////////////////////////////////////////////
+
+status_t ParcelableCasPluginDescriptor::readFromParcel(const Parcel* /*parcel*/) {
+    ALOGE("CAPluginDescriptor::readFromParcel() shouldn't be called");
+    return INVALID_OPERATION;
+}
+
+status_t ParcelableCasPluginDescriptor::writeToParcel(Parcel* parcel) const {
+    status_t err = parcel->writeInt32(mCASystemId);
+    if (err != NO_ERROR) {
+        return err;
+    }
+    return parcel->writeString16(mName);
+}
+
+} // namespace MediaCas
+///////////////////////////////////////////////////////////////////////////////
+
+namespace MediaDescrambler {
+
+DescrambleInfo::DescrambleInfo() {}
+
+DescrambleInfo::~DescrambleInfo() {}
+
+status_t DescrambleInfo::readFromParcel(const Parcel* parcel) {
+    status_t err = parcel->readInt32((int32_t*)&dstType);
+    if (err != OK) {
+        return err;
+    }
+    if (dstType != kDestinationTypeNativeHandle
+            && dstType != kDestinationTypeVmPointer) {
+        return BAD_VALUE;
+    }
+
+    err = parcel->readInt32((int32_t*)&scramblingControl);
+    if (err != OK) {
+        return err;
+    }
+
+    err = parcel->readUint32((uint32_t*)&numSubSamples);
+    if (err != OK) {
+        return err;
+    }
+    if (numSubSamples > 0xffff) {
+        return BAD_VALUE;
+    }
+
+    subSamples = new DescramblerPlugin::SubSample[numSubSamples];
+    if (subSamples == NULL) {
+        return NO_MEMORY;
+    }
+
+    for (size_t i = 0; i < numSubSamples; i++) {
+        err = parcel->readUint32(&subSamples[i].mNumBytesOfClearData);
+        if (err != OK) {
+            return err;
+        }
+        err = parcel->readUint32(&subSamples[i].mNumBytesOfEncryptedData);
+        if (err != OK) {
+            return err;
+        }
+    }
+
+    srcMem = interface_cast<IMemory>(parcel->readStrongBinder());
+    if (srcMem == NULL) {
+        return BAD_VALUE;
+    }
+
+    err = parcel->readInt32(&srcOffset);
+    if (err != OK) {
+        return err;
+    }
+
+    native_handle_t *nativeHandle = NULL;
+    if (dstType == kDestinationTypeNativeHandle) {
+        nativeHandle = parcel->readNativeHandle();
+        dstPtr = static_cast<void *>(nativeHandle);
+    } else {
+        dstPtr = NULL;
+    }
+
+    err = parcel->readInt32(&dstOffset);
+    if (err != OK) {
+        return err;
+    }
+
+    return OK;
+}
+
+status_t DescrambleInfo::writeToParcel(Parcel* parcel) const {
+    if (dstType != kDestinationTypeNativeHandle
+            && dstType != kDestinationTypeVmPointer) {
+        return BAD_VALUE;
+    }
+
+    status_t err = parcel->writeInt32((int32_t)dstType);
+    if (err != OK) {
+        return err;
+    }
+
+    err = parcel->writeInt32(scramblingControl);
+    if (err != OK) {
+        return err;
+    }
+
+    err = parcel->writeUint32(numSubSamples);
+    if (err != OK) {
+        return err;
+    }
+
+    for (size_t i = 0; i < numSubSamples; i++) {
+        err = parcel->writeUint32(subSamples[i].mNumBytesOfClearData);
+        if (err != OK) {
+            return err;
+        }
+        err = parcel->writeUint32(subSamples[i].mNumBytesOfEncryptedData);
+        if (err != OK) {
+            return err;
+        }
+    }
+
+    err = parcel->writeStrongBinder(IInterface::asBinder(srcMem));
+    if (err != OK) {
+        return err;
+    }
+
+    err = parcel->writeInt32(srcOffset);
+    if (err != OK) {
+        return err;
+    }
+
+    if (dstType == kDestinationTypeNativeHandle) {
+        parcel->writeNativeHandle(static_cast<native_handle_t *>(dstPtr));
+    }
+
+    err = parcel->writeInt32(dstOffset);
+    if (err != OK) {
+        return err;
+    }
+
+    return OK;
+}
+
+} // namespace MediaDescrambler
+
+} // namespace media
+} // namespace android
+
diff --git a/drm/libmediadrm/SharedLibrary.cpp b/drm/libmediadrm/SharedLibrary.cpp
index 74b3a71..bebafa8 100644
--- a/drm/libmediadrm/SharedLibrary.cpp
+++ b/drm/libmediadrm/SharedLibrary.cpp
@@ -43,6 +43,9 @@
         if (!mLibHandle) {
             return NULL;
         }
+        // Clear last error before we load the symbol again,
+        // in case the caller didn't retrieve it.
+        (void)dlerror();
         return dlsym(mLibHandle, symbol);
     }
 
diff --git a/drm/libmediadrm/aidl/android/media/ICas.aidl b/drm/libmediadrm/aidl/android/media/ICas.aidl
new file mode 100644
index 0000000..6b2ce4a
--- /dev/null
+++ b/drm/libmediadrm/aidl/android/media/ICas.aidl
@@ -0,0 +1,34 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.media;
+
+import android.media.MediaCas;
+
+/** @hide */
+interface ICas {
+    void setPrivateData(in byte[] pvtData);
+    byte[] openSession(int program_number);
+    byte[] openSessionForStream(int program_number, int elementary_PID);
+    void closeSession(in byte[] sessionId);
+    void setSessionPrivateData(in byte[] sessionId, in byte[] pvtData);
+    void processEcm(in byte[] sessionId, in MediaCas.ParcelableCasData ecm);
+    void processEmm(in MediaCas.ParcelableCasData emm);
+    void sendEvent(int event, int arg, in @nullable byte[] eventData);
+    void provision(String provisionString);
+    void refreshEntitlements(int refreshType, in @nullable byte[] refreshData);
+    void release();
+}
\ No newline at end of file
diff --git a/drm/libmediadrm/aidl/android/media/ICasListener.aidl b/drm/libmediadrm/aidl/android/media/ICasListener.aidl
new file mode 100644
index 0000000..01a5abc
--- /dev/null
+++ b/drm/libmediadrm/aidl/android/media/ICasListener.aidl
@@ -0,0 +1,22 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.media;
+
+/** @hide */
+interface ICasListener {
+    void onEvent(int event, int arg, in @nullable byte[] data);
+}
\ No newline at end of file
diff --git a/drm/libmediadrm/aidl/android/media/IDescrambler.aidl b/drm/libmediadrm/aidl/android/media/IDescrambler.aidl
new file mode 100644
index 0000000..fdf99eb
--- /dev/null
+++ b/drm/libmediadrm/aidl/android/media/IDescrambler.aidl
@@ -0,0 +1,27 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.media;
+
+import android.media.MediaDescrambler;
+
+/** @hide */
+interface IDescrambler {
+    void setMediaCasSession(in byte[] sessionId);
+    boolean requiresSecureDecoderComponent(String mime);
+    int descramble(in MediaDescrambler.DescrambleInfo descrambleInfo);
+    void release();
+}
\ No newline at end of file
diff --git a/drm/libmediadrm/aidl/android/media/IMediaCasService.aidl b/drm/libmediadrm/aidl/android/media/IMediaCasService.aidl
new file mode 100644
index 0000000..44f6825
--- /dev/null
+++ b/drm/libmediadrm/aidl/android/media/IMediaCasService.aidl
@@ -0,0 +1,32 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.media;
+
+import android.media.IDescrambler;
+import android.media.ICas;
+import android.media.ICasListener;
+import android.media.MediaCas;
+
+/** @hide */
+interface IMediaCasService {
+    MediaCas.ParcelableCasPluginDescriptor[] enumeratePlugins();
+    boolean isSystemIdSupported(int CA_system_id);
+    ICas createPlugin(int CA_system_id, ICasListener listener);
+    boolean isDescramblerSupported(int CA_system_id);
+    IDescrambler createDescrambler(int CA_system_id);
+}
+
diff --git a/drm/libmediadrm/aidl/android/media/MediaCas.aidl b/drm/libmediadrm/aidl/android/media/MediaCas.aidl
new file mode 100644
index 0000000..cb8d0c6
--- /dev/null
+++ b/drm/libmediadrm/aidl/android/media/MediaCas.aidl
@@ -0,0 +1,23 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.media;
+
+/** @hide */
+parcelable MediaCas.ParcelableCasPluginDescriptor cpp_header "media/MediaCasDefs.h";
+
+/** @hide */
+parcelable MediaCas.ParcelableCasData cpp_header "media/MediaCasDefs.h";
\ No newline at end of file
diff --git a/drm/libmediadrm/aidl/android/media/MediaDescrambler.aidl b/drm/libmediadrm/aidl/android/media/MediaDescrambler.aidl
new file mode 100644
index 0000000..e789244
--- /dev/null
+++ b/drm/libmediadrm/aidl/android/media/MediaDescrambler.aidl
@@ -0,0 +1,20 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.media;
+
+/** @hide */
+parcelable MediaDescrambler.DescrambleInfo cpp_header "media/MediaCasDefs.h";
\ No newline at end of file
diff --git a/drm/mediadrm/plugins/clearkey/DrmFactory.cpp b/drm/mediadrm/plugins/clearkey/DrmFactory.cpp
index d27956c..c83321b 100644
--- a/drm/mediadrm/plugins/clearkey/DrmFactory.cpp
+++ b/drm/mediadrm/plugins/clearkey/DrmFactory.cpp
@@ -44,7 +44,8 @@
 }
 
 android::status_t DrmFactory::createDrmPlugin(
-        const uint8_t uuid[16], android::DrmPlugin** plugin) {
+        const uint8_t uuid[16],
+        android::DrmPlugin** plugin) {
     if (!isCryptoSchemeSupported(uuid)) {
         *plugin = NULL;
         return android::BAD_VALUE;
diff --git a/drm/mediadrm/plugins/clearkey/DrmFactory.h b/drm/mediadrm/plugins/clearkey/DrmFactory.h
index 87db982..0bc0843 100644
--- a/drm/mediadrm/plugins/clearkey/DrmFactory.h
+++ b/drm/mediadrm/plugins/clearkey/DrmFactory.h
@@ -35,7 +35,8 @@
     virtual bool isContentTypeSupported(const android::String8 &mimeType);
 
     virtual android::status_t createDrmPlugin(
-            const uint8_t uuid[16], android::DrmPlugin** plugin);
+            const uint8_t uuid[16],
+            android::DrmPlugin** plugin);
 
 private:
     DISALLOW_EVIL_CONSTRUCTORS(DrmFactory);
diff --git a/drm/mediadrm/plugins/mock/MockDrmCryptoPlugin.cpp b/drm/mediadrm/plugins/mock/MockDrmCryptoPlugin.cpp
index a38cca9..c82b9d9 100644
--- a/drm/mediadrm/plugins/mock/MockDrmCryptoPlugin.cpp
+++ b/drm/mediadrm/plugins/mock/MockDrmCryptoPlugin.cpp
@@ -56,7 +56,8 @@
         return true;
     }
 
-    status_t MockDrmFactory::createDrmPlugin(const uint8_t /* uuid */[16], DrmPlugin **plugin)
+    status_t MockDrmFactory::createDrmPlugin(const uint8_t /* uuid */[16],
+                                             DrmPlugin **plugin)
     {
         *plugin = new MockDrmPlugin();
         return OK;
@@ -729,7 +730,7 @@
 
     ssize_t MockDrmPlugin::findSession(Vector<uint8_t> const &sessionId) const
     {
-        ALOGD("findSession: nsessions=%d, size=%d", mSessions.size(), sessionId.size());
+        ALOGD("findSession: nsessions=%u, size=%u", mSessions.size(), sessionId.size());
         for (size_t i = 0; i < mSessions.size(); ++i) {
             if (memcmp(mSessions[i].array(), sessionId.array(), sessionId.size()) == 0) {
                 return i;
@@ -740,7 +741,7 @@
 
     ssize_t MockDrmPlugin::findKeySet(Vector<uint8_t> const &keySetId) const
     {
-        ALOGD("findKeySet: nkeySets=%d, size=%d", mKeySets.size(), keySetId.size());
+        ALOGD("findKeySet: nkeySets=%u, size=%u", mKeySets.size(), keySetId.size());
         for (size_t i = 0; i < mKeySets.size(); ++i) {
             if (memcmp(mKeySets[i].array(), keySetId.array(), keySetId.size()) == 0) {
                 return i;
diff --git a/drm/mediadrm/plugins/mock/MockDrmCryptoPlugin.h b/drm/mediadrm/plugins/mock/MockDrmCryptoPlugin.h
index 98bdd69..9f8db17 100644
--- a/drm/mediadrm/plugins/mock/MockDrmCryptoPlugin.h
+++ b/drm/mediadrm/plugins/mock/MockDrmCryptoPlugin.h
@@ -33,7 +33,8 @@
 
         bool isCryptoSchemeSupported(const uint8_t uuid[16]);
         bool isContentTypeSupported(const String8 &mimeType);
-        status_t createDrmPlugin(const uint8_t uuid[16], DrmPlugin **plugin);
+        status_t createDrmPlugin(const uint8_t uuid[16],
+                                 DrmPlugin **plugin);
     };
 
     class MockCryptoFactory : public CryptoFactory {
diff --git a/include/camera b/include/camera
new file mode 120000
index 0000000..00848e3
--- /dev/null
+++ b/include/camera
@@ -0,0 +1 @@
+../camera/include/camera/
\ No newline at end of file
diff --git a/include/camera/CameraBase.h b/include/camera/CameraBase.h
deleted file mode 100644
index 41f8621..0000000
--- a/include/camera/CameraBase.h
+++ /dev/null
@@ -1,132 +0,0 @@
-/*
- * Copyright (C) 2013 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_CAMERA_BASE_H
-#define ANDROID_HARDWARE_CAMERA_BASE_H
-
-#include <utils/Mutex.h>
-
-struct camera_frame_metadata;
-
-namespace android {
-
-namespace hardware {
-
-
-class ICameraService;
-class ICameraServiceListener;
-
-struct CameraInfo : public android::Parcelable {
-    /**
-     * The direction that the camera faces to. It should be CAMERA_FACING_BACK
-     * or CAMERA_FACING_FRONT.
-     */
-    int facing;
-
-    /**
-     * The orientation of the camera image. The value is the angle that the
-     * camera image needs to be rotated clockwise so it shows correctly on the
-     * display in its natural orientation. It should be 0, 90, 180, or 270.
-     *
-     * For example, suppose a device has a naturally tall screen. The
-     * back-facing camera sensor is mounted in landscape. You are looking at
-     * the screen. If the top side of the camera sensor is aligned with the
-     * right edge of the screen in natural orientation, the value should be
-     * 90. If the top side of a front-facing camera sensor is aligned with the
-     * right of the screen, the value should be 270.
-     */
-    int orientation;
-
-    virtual status_t writeToParcel(Parcel* parcel) const;
-    virtual status_t readFromParcel(const Parcel* parcel);
-
-};
-
-} // namespace hardware
-
-using hardware::CameraInfo;
-
-
-template <typename TCam>
-struct CameraTraits {
-};
-
-template <typename TCam, typename TCamTraits = CameraTraits<TCam> >
-class CameraBase : public IBinder::DeathRecipient
-{
-public:
-    typedef typename TCamTraits::TCamListener       TCamListener;
-    typedef typename TCamTraits::TCamUser           TCamUser;
-    typedef typename TCamTraits::TCamCallbacks      TCamCallbacks;
-    typedef typename TCamTraits::TCamConnectService TCamConnectService;
-
-    static sp<TCam>      connect(int cameraId,
-                                 const String16& clientPackageName,
-                                 int clientUid, int clientPid);
-    virtual void         disconnect();
-
-    void                 setListener(const sp<TCamListener>& listener);
-
-    static int           getNumberOfCameras();
-
-    static status_t      getCameraInfo(int cameraId,
-                                       /*out*/
-                                       struct hardware::CameraInfo* cameraInfo);
-
-    static status_t      addServiceListener(
-        const sp<::android::hardware::ICameraServiceListener>& listener);
-
-    static status_t      removeServiceListener(
-        const sp<::android::hardware::ICameraServiceListener>& listener);
-
-    sp<TCamUser>         remote();
-
-    // Status is set to 'UNKNOWN_ERROR' after successful (re)connection
-    status_t             getStatus();
-
-protected:
-    CameraBase(int cameraId);
-    virtual              ~CameraBase();
-
-    ////////////////////////////////////////////////////////
-    // TCamCallbacks implementation
-    ////////////////////////////////////////////////////////
-    virtual void         notifyCallback(int32_t msgType, int32_t ext,
-                                        int32_t ext2);
-
-    ////////////////////////////////////////////////////////
-    // Common instance variables
-    ////////////////////////////////////////////////////////
-    Mutex                            mLock;
-
-    virtual void                     binderDied(const wp<IBinder>& who);
-
-    // helper function to obtain camera service handle
-    static const sp<::android::hardware::ICameraService> getCameraService();
-
-    sp<TCamUser>                     mCamera;
-    status_t                         mStatus;
-
-    sp<TCamListener>                 mListener;
-
-    const int                        mCameraId;
-
-    typedef CameraBase<TCam>         CameraBaseT;
-};
-
-}; // namespace android
-
-#endif
diff --git a/include/camera/CaptureResult.h b/include/camera/CaptureResult.h
deleted file mode 100644
index 45e4518..0000000
--- a/include/camera/CaptureResult.h
+++ /dev/null
@@ -1,114 +0,0 @@
-/*
- * Copyright (C) 2014 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_CAPTURERESULT_H
-#define ANDROID_HARDWARE_CAPTURERESULT_H
-
-#include <utils/RefBase.h>
-#include <binder/Parcelable.h>
-#include <camera/CameraMetadata.h>
-
-
-namespace android {
-
-namespace hardware {
-namespace camera2 {
-namespace impl {
-
-/**
- * CaptureResultExtras is a structure to encapsulate various indices for a capture result.
- * These indices are framework-internal and not sent to the HAL.
- */
-struct CaptureResultExtras : public android::Parcelable {
-    /**
-     * An integer to index the request sequence that this result belongs to.
-     */
-    int32_t requestId;
-
-    /**
-     * An integer to index this result inside a request sequence, starting from 0.
-     */
-    int32_t burstId;
-
-    /**
-     * TODO: Add documentation for this field.
-     */
-    int32_t afTriggerId;
-
-    /**
-     * TODO: Add documentation for this field.
-     */
-    int32_t precaptureTriggerId;
-
-    /**
-     * A 64bit integer to index the frame number associated with this result.
-     */
-    int64_t frameNumber;
-
-    /**
-     * The partial result count (index) for this capture result.
-     */
-    int32_t partialResultCount;
-
-    /**
-     * For buffer drop errors, the stream ID for the stream that lost a buffer.
-     * Otherwise -1.
-     */
-    int32_t errorStreamId;
-
-    /**
-     * Constructor initializes object as invalid by setting requestId to be -1.
-     */
-    CaptureResultExtras()
-        : requestId(-1),
-          burstId(0),
-          afTriggerId(0),
-          precaptureTriggerId(0),
-          frameNumber(0),
-          partialResultCount(0),
-          errorStreamId(-1) {
-    }
-
-    /**
-     * This function returns true if it's a valid CaptureResultExtras object.
-     * Otherwise, returns false. It is valid only when requestId is non-negative.
-     */
-    bool isValid();
-
-    virtual status_t                readFromParcel(const Parcel* parcel) override;
-    virtual status_t                writeToParcel(Parcel* parcel) const override;
-};
-} // namespace impl
-} // namespace camera2
-} // namespace hardware
-
-using hardware::camera2::impl::CaptureResultExtras;
-
-struct CaptureResult : public virtual LightRefBase<CaptureResult> {
-    CameraMetadata          mMetadata;
-    CaptureResultExtras     mResultExtras;
-
-    CaptureResult();
-
-    CaptureResult(const CaptureResult& otherResult);
-
-    status_t                readFromParcel(Parcel* parcel);
-    status_t                writeToParcel(Parcel* parcel) const;
-};
-
-}
-
-#endif /* ANDROID_HARDWARE_CAPTURERESULT_H */
diff --git a/include/camera/VendorTagDescriptor.h b/include/camera/VendorTagDescriptor.h
deleted file mode 100644
index bfc8c96..0000000
--- a/include/camera/VendorTagDescriptor.h
+++ /dev/null
@@ -1,173 +0,0 @@
-/*
- * Copyright (C) 2014 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef VENDOR_TAG_DESCRIPTOR_H
-
-#include <binder/Parcelable.h>
-#include <utils/Vector.h>
-#include <utils/KeyedVector.h>
-#include <utils/String8.h>
-#include <utils/RefBase.h>
-#include <system/camera_vendor_tags.h>
-
-#include <stdint.h>
-
-namespace android {
-
-class VendorTagDescriptor;
-
-namespace hardware {
-namespace camera2 {
-namespace params {
-
-/**
- * VendorTagDescriptor objects are parcelable containers for the vendor tag
- * definitions provided, and are typically used to pass the vendor tag
- * information enumerated by the HAL to clients of the camera service.
- */
-class VendorTagDescriptor : public Parcelable {
-    public:
-        virtual ~VendorTagDescriptor();
-
-        VendorTagDescriptor();
-        VendorTagDescriptor(const VendorTagDescriptor& src);
-        VendorTagDescriptor& operator=(const VendorTagDescriptor& rhs);
-
-        void copyFrom(const VendorTagDescriptor& src);
-
-        /**
-         * The following 'get*' methods implement the corresponding
-         * functions defined in
-         * system/media/camera/include/system/camera_vendor_tags.h
-         */
-
-        // Returns the number of vendor tags defined.
-        int getTagCount() const;
-
-        // Returns an array containing the id's of vendor tags defined.
-        void getTagArray(uint32_t* tagArray) const;
-
-        // Returns the section name string for a given vendor tag id.
-        const char* getSectionName(uint32_t tag) const;
-
-        // Returns the tag name string for a given vendor tag id.
-        const char* getTagName(uint32_t tag) const;
-
-        // Returns the tag type for a given vendor tag id.
-        int getTagType(uint32_t tag) const;
-
-        /**
-         * Write the VendorTagDescriptor object into the given parcel.
-         *
-         * Returns OK on success, or a negative error code.
-         */
-        virtual status_t writeToParcel(
-                /*out*/
-                Parcel* parcel) const override;
-
-        /**
-         * Convenience method to get a vector containing all vendor tag
-         * sections, or an empty vector if none are defined.
-         * The pointer is valid for the lifetime of the VendorTagDescriptor,
-         * or until readParcel or copyFrom is invoked.
-         */
-        const SortedVector<String8>* getAllSectionNames() const;
-
-        /**
-         * Lookup the tag id for a given tag name and section.
-         *
-         * Returns OK on success, or a negative error code.
-         */
-        status_t lookupTag(const String8& name, const String8& section, /*out*/uint32_t* tag) const;
-
-        /**
-         * Dump the currently configured vendor tags to a file descriptor.
-         */
-        void dump(int fd, int verbosity, int indentation) const;
-
-        /**
-         * Read values VendorTagDescriptor object from the given parcel.
-         *
-         * Returns OK on success, or a negative error code.
-         */
-        virtual status_t readFromParcel(const Parcel* parcel) override;
-
-    protected:
-        KeyedVector<String8, KeyedVector<String8, uint32_t>*> mReverseMapping;
-        KeyedVector<uint32_t, String8> mTagToNameMap;
-        KeyedVector<uint32_t, uint32_t> mTagToSectionMap; // Value is offset in mSections
-        KeyedVector<uint32_t, int32_t> mTagToTypeMap;
-        SortedVector<String8> mSections;
-        // must be int32_t to be compatible with Parcel::writeInt32
-        int32_t mTagCount;
-
-        vendor_tag_ops mVendorOps;
-};
-} /* namespace params */
-} /* namespace camera2 */
-} /* namespace hardware */
-
-/**
- * This version of VendorTagDescriptor must be stored in Android sp<>, and adds support for using it
- * as a global tag descriptor.
- *
- * It's a child class of the basic hardware::camera2::params::VendorTagDescriptor since basic
- * Parcelable objects cannot require being kept in an sp<> and still work with auto-generated AIDL
- * interface implementations.
- */
-class VendorTagDescriptor :
-            public ::android::hardware::camera2::params::VendorTagDescriptor,
-            public LightRefBase<VendorTagDescriptor> {
-
-  public:
-
-    /**
-     * Create a VendorTagDescriptor object from the given vendor_tag_ops_t
-     * struct.
-     *
-     * Returns OK on success, or a negative error code.
-     */
-    static status_t createDescriptorFromOps(const vendor_tag_ops_t* vOps,
-            /*out*/
-            sp<VendorTagDescriptor>& descriptor);
-
-    /**
-     * Sets the global vendor tag descriptor to use for this process.
-     * Camera metadata operations that access vendor tags will use the
-     * vendor tag definitions set this way.
-     *
-     * Returns OK on success, or a negative error code.
-     */
-    static status_t setAsGlobalVendorTagDescriptor(const sp<VendorTagDescriptor>& desc);
-
-    /**
-     * Returns the global vendor tag descriptor used by this process.
-     * This will contain NULL if no vendor tags are defined.
-     */
-    static sp<VendorTagDescriptor> getGlobalVendorTagDescriptor();
-
-    /**
-     * Clears the global vendor tag descriptor used by this process.
-     */
-    static void clearGlobalVendorTagDescriptor();
-
-};
-
-} /* namespace android */
-
-
-#define VENDOR_TAG_DESCRIPTOR_H
-#endif /* VENDOR_TAG_DESCRIPTOR_H */
diff --git a/include/camera/android/hardware/ICamera.h b/include/camera/android/hardware/ICamera.h
deleted file mode 100644
index 3b12afe..0000000
--- a/include/camera/android/hardware/ICamera.h
+++ /dev/null
@@ -1,154 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_ICAMERA_H
-#define ANDROID_HARDWARE_ICAMERA_H
-
-#include <utils/RefBase.h>
-#include <binder/IInterface.h>
-#include <binder/Parcel.h>
-#include <binder/IMemory.h>
-#include <binder/Status.h>
-#include <utils/String8.h>
-
-namespace android {
-
-class IGraphicBufferProducer;
-class Surface;
-
-namespace hardware {
-
-class ICameraClient;
-
-class ICamera: public IInterface
-{
-    /**
-     * Keep up-to-date with ICamera.aidl in frameworks/base
-     */
-public:
-    enum {
-        // Pass real YUV data in video buffers through ICameraClient.dataCallbackTimestamp().
-        VIDEO_BUFFER_MODE_DATA_CALLBACK_YUV = 0,
-        // Pass metadata in video buffers through ICameraClient.dataCallbackTimestamp().
-        VIDEO_BUFFER_MODE_DATA_CALLBACK_METADATA = 1,
-        // Pass video buffers through IGraphicBufferProducer set with setVideoTarget().
-        VIDEO_BUFFER_MODE_BUFFER_QUEUE = 2,
-    };
-
-    DECLARE_META_INTERFACE(Camera);
-
-    virtual binder::Status  disconnect() = 0;
-
-    // connect new client with existing camera remote
-    virtual status_t        connect(const sp<ICameraClient>& client) = 0;
-
-    // prevent other processes from using this ICamera interface
-    virtual status_t        lock() = 0;
-
-    // allow other processes to use this ICamera interface
-    virtual status_t        unlock() = 0;
-
-    // pass the buffered IGraphicBufferProducer to the camera service
-    virtual status_t        setPreviewTarget(
-            const sp<IGraphicBufferProducer>& bufferProducer) = 0;
-
-    // set the preview callback flag to affect how the received frames from
-    // preview are handled. Enabling preview callback flags disables any active
-    // preview callback surface set by setPreviewCallbackTarget().
-    virtual void            setPreviewCallbackFlag(int flag) = 0;
-    // set a buffer interface to use for client-received preview frames instead
-    // of preview callback buffers. Passing a valid interface here disables any
-    // active preview callbacks set by setPreviewCallbackFlag(). Passing NULL
-    // disables the use of the callback target.
-    virtual status_t        setPreviewCallbackTarget(
-            const sp<IGraphicBufferProducer>& callbackProducer) = 0;
-
-    // start preview mode, must call setPreviewTarget first
-    virtual status_t        startPreview() = 0;
-
-    // stop preview mode
-    virtual void            stopPreview() = 0;
-
-    // get preview state
-    virtual bool            previewEnabled() = 0;
-
-    // start recording mode
-    virtual status_t        startRecording() = 0;
-
-    // stop recording mode
-    virtual void            stopRecording() = 0;
-
-    // get recording state
-    virtual bool            recordingEnabled() = 0;
-
-    // Release a recording frame that was received via ICameraClient::dataCallbackTimestamp.
-    virtual void            releaseRecordingFrame(const sp<IMemory>& mem) = 0;
-
-    // Release a recording frame handle that was received via
-    // ICameraClient::recordingFrameHandleCallbackTimestamp.
-    virtual void            releaseRecordingFrameHandle(native_handle_t *handle) = 0;
-
-    // auto focus
-    virtual status_t        autoFocus() = 0;
-
-    // cancel auto focus
-    virtual status_t        cancelAutoFocus() = 0;
-
-    /*
-     * take a picture.
-     * @param msgType the message type an application selectively turn on/off
-     * on a photo-by-photo basis. The supported message types are:
-     * CAMERA_MSG_SHUTTER, CAMERA_MSG_RAW_IMAGE, CAMERA_MSG_COMPRESSED_IMAGE,
-     * and CAMERA_MSG_POSTVIEW_FRAME. Any other message types will be ignored.
-     */
-    virtual status_t        takePicture(int msgType) = 0;
-
-    // set preview/capture parameters - key/value pairs
-    virtual status_t        setParameters(const String8& params) = 0;
-
-    // get preview/capture parameters - key/value pairs
-    virtual String8         getParameters() const = 0;
-
-    // send command to camera driver
-    virtual status_t        sendCommand(int32_t cmd, int32_t arg1, int32_t arg2) = 0;
-
-
-    // Tell camera how to pass video buffers. videoBufferMode is one of VIDEO_BUFFER_MODE_*.
-    // Returns OK if the specified video buffer mode is supported. If videoBufferMode is
-    // VIDEO_BUFFER_MODE_BUFFER_QUEUE, setVideoTarget() must be called before starting video
-    // recording.
-    virtual status_t        setVideoBufferMode(int32_t videoBufferMode) = 0;
-
-    // Set the video buffer producer for camera to use in VIDEO_BUFFER_MODE_BUFFER_QUEUE mode.
-    virtual status_t        setVideoTarget(
-            const sp<IGraphicBufferProducer>& bufferProducer) = 0;
-};
-
-// ----------------------------------------------------------------------------
-
-class BnCamera: public BnInterface<ICamera>
-{
-public:
-    virtual status_t    onTransact( uint32_t code,
-                                    const Parcel& data,
-                                    Parcel* reply,
-                                    uint32_t flags = 0);
-};
-
-} // namespace hardware
-} // namespace android
-
-#endif
diff --git a/include/camera/android/hardware/ICameraClient.h b/include/camera/android/hardware/ICameraClient.h
deleted file mode 100644
index 3f835a9..0000000
--- a/include/camera/android/hardware/ICameraClient.h
+++ /dev/null
@@ -1,60 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_ICAMERA_APP_H
-#define ANDROID_HARDWARE_ICAMERA_APP_H
-
-#include <utils/RefBase.h>
-#include <binder/IInterface.h>
-#include <binder/Parcel.h>
-#include <binder/IMemory.h>
-#include <utils/Timers.h>
-#include <system/camera.h>
-
-namespace android {
-namespace hardware {
-
-class ICameraClient: public IInterface
-{
-public:
-    DECLARE_META_INTERFACE(CameraClient);
-
-    virtual void            notifyCallback(int32_t msgType, int32_t ext1, int32_t ext2) = 0;
-    virtual void            dataCallback(int32_t msgType, const sp<IMemory>& data,
-                                         camera_frame_metadata_t *metadata) = 0;
-    virtual void            dataCallbackTimestamp(nsecs_t timestamp, int32_t msgType, const sp<IMemory>& data) = 0;
-
-    // Invoked to send a recording frame handle with a timestamp. Call
-    // ICamera::releaseRecordingFrameHandle to release the frame handle.
-    virtual void            recordingFrameHandleCallbackTimestamp(nsecs_t timestamp,
-                                         native_handle_t* handle) = 0;
-};
-
-// ----------------------------------------------------------------------------
-
-class BnCameraClient: public BnInterface<ICameraClient>
-{
-public:
-    virtual status_t    onTransact( uint32_t code,
-                                    const Parcel& data,
-                                    Parcel* reply,
-                                    uint32_t flags = 0);
-};
-
-} // namespace hardware
-} // namespace android
-
-#endif
diff --git a/include/camera/camera2/CaptureRequest.h b/include/camera/camera2/CaptureRequest.h
deleted file mode 100644
index c989f26..0000000
--- a/include/camera/camera2/CaptureRequest.h
+++ /dev/null
@@ -1,56 +0,0 @@
-/*
- * Copyright (C) 2013 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_PHOTOGRAPHY_CAPTUREREQUEST_H
-#define ANDROID_HARDWARE_PHOTOGRAPHY_CAPTUREREQUEST_H
-
-#include <utils/RefBase.h>
-#include <utils/Vector.h>
-#include <binder/Parcelable.h>
-#include <camera/CameraMetadata.h>
-
-namespace android {
-
-class Surface;
-
-namespace hardware {
-namespace camera2 {
-
-struct CaptureRequest : public Parcelable {
-    CameraMetadata          mMetadata;
-    Vector<sp<Surface> >    mSurfaceList;
-    bool                    mIsReprocess;
-
-    /**
-     * Keep impl up-to-date with CaptureRequest.java in frameworks/base
-     */
-    status_t                readFromParcel(const Parcel* parcel) override;
-    status_t                writeToParcel(Parcel* parcel) const override;
-};
-
-} // namespace camera2
-} // namespace hardware
-
-struct CaptureRequest :
-        public RefBase, public hardware::camera2::CaptureRequest {
-  public:
-    // Same as android::hardware::camera2::CaptureRequest, except that you can
-    // put this in an sp<>
-};
-
-} // namespace android
-
-#endif
diff --git a/include/camera/camera2/OutputConfiguration.h b/include/camera/camera2/OutputConfiguration.h
deleted file mode 100644
index cf8f3c6..0000000
--- a/include/camera/camera2/OutputConfiguration.h
+++ /dev/null
@@ -1,119 +0,0 @@
-/*
- * Copyright (C) 2015 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_CAMERA2_OUTPUTCONFIGURATION_H
-#define ANDROID_HARDWARE_CAMERA2_OUTPUTCONFIGURATION_H
-
-#include <gui/IGraphicBufferProducer.h>
-#include <binder/Parcelable.h>
-
-namespace android {
-
-class Surface;
-
-namespace hardware {
-namespace camera2 {
-namespace params {
-
-class OutputConfiguration : public android::Parcelable {
-public:
-
-    static const int INVALID_ROTATION;
-    static const int INVALID_SET_ID;
-    enum SurfaceType{
-        SURFACE_TYPE_UNKNOWN = -1,
-        SURFACE_TYPE_SURFACE_VIEW = 0,
-        SURFACE_TYPE_SURFACE_TEXTURE = 1
-    };
-    sp<IGraphicBufferProducer> getGraphicBufferProducer() const;
-    int                        getRotation() const;
-    int                        getSurfaceSetID() const;
-    int                        getSurfaceType() const;
-    int                        getWidth() const;
-    int                        getHeight() const;
-    /**
-     * Keep impl up-to-date with OutputConfiguration.java in frameworks/base
-     */
-    virtual status_t           writeToParcel(Parcel* parcel) const override;
-
-    virtual status_t           readFromParcel(const Parcel* parcel) override;
-
-    // getGraphicBufferProducer will be NULL
-    // getRotation will be INVALID_ROTATION
-    // getSurfaceSetID will be INVALID_SET_ID
-    OutputConfiguration();
-
-    // getGraphicBufferProducer will be NULL if error occurred
-    // getRotation will be INVALID_ROTATION if error occurred
-    // getSurfaceSetID will be INVALID_SET_ID if error occurred
-    OutputConfiguration(const Parcel& parcel);
-
-    OutputConfiguration(sp<IGraphicBufferProducer>& gbp, int rotation,
-            int surfaceSetID = INVALID_SET_ID);
-
-    bool operator == (const OutputConfiguration& other) const {
-        return (mGbp == other.mGbp &&
-                mRotation == other.mRotation &&
-                mSurfaceSetID == other.mSurfaceSetID &&
-                mSurfaceType == other.mSurfaceType &&
-                mWidth == other.mWidth &&
-                mHeight == other.mHeight);
-    }
-    bool operator != (const OutputConfiguration& other) const {
-        return !(*this == other);
-    }
-    bool operator < (const OutputConfiguration& other) const {
-        if (*this == other) return false;
-        if (mGbp != other.mGbp) return mGbp < other.mGbp;
-        if (mSurfaceSetID != other.mSurfaceSetID) {
-            return mSurfaceSetID < other.mSurfaceSetID;
-        }
-        if (mSurfaceType != other.mSurfaceType) {
-            return mSurfaceType < other.mSurfaceType;
-        }
-        if (mWidth != other.mWidth) {
-            return mWidth < other.mWidth;
-        }
-        if (mHeight != other.mHeight) {
-            return mHeight < other.mHeight;
-        }
-
-        return mRotation < other.mRotation;
-    }
-    bool operator > (const OutputConfiguration& other) const {
-        return (*this != other && !(*this < other));
-    }
-
-private:
-    sp<IGraphicBufferProducer> mGbp;
-    int                        mRotation;
-    int                        mSurfaceSetID;
-    int                        mSurfaceType;
-    int                        mWidth;
-    int                        mHeight;
-    // helper function
-    static String16 readMaybeEmptyString16(const Parcel* parcel);
-};
-} // namespace params
-} // namespace camera2
-} // namespace hardware
-
-
-using hardware::camera2::params::OutputConfiguration;
-
-}; // namespace android
-
-#endif
diff --git a/include/camera/camera2/SubmitInfo.h b/include/camera/camera2/SubmitInfo.h
deleted file mode 100644
index 3b47b32..0000000
--- a/include/camera/camera2/SubmitInfo.h
+++ /dev/null
@@ -1,44 +0,0 @@
-/*
- * Copyright (C) 2015 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_HARDWARE_CAMERA2_UTIL_SUBMITINFO_H
-#define ANDROID_HARDWARE_CAMERA2_UTIL_SUBMITINFO_H
-
-#include <binder/Parcel.h>
-#include <binder/Parcelable.h>
-
-namespace android {
-namespace hardware {
-namespace camera2 {
-namespace utils {
-
-struct SubmitInfo : public android::Parcelable {
-public:
-
-    int32_t mRequestId;
-    int64_t mLastFrameNumber;
-
-    virtual status_t writeToParcel(Parcel *parcel) const override;
-    virtual status_t readFromParcel(const Parcel* parcel) override;
-
-};
-
-} // namespace utils
-} // namespace camera2
-} // namespace hardware
-} // namespace android
-
-#endif
diff --git a/include/camera/ndk/NdkCameraMetadataTags.h b/include/camera/ndk/NdkCameraMetadataTags.h
deleted file mode 100644
index 0fec983..0000000
--- a/include/camera/ndk/NdkCameraMetadataTags.h
+++ /dev/null
@@ -1,6916 +0,0 @@
-/*
- * Copyright (C) 2015 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/**
- * @addtogroup Camera
- * @{
- */
-
-/**
- * @file NdkCameraMetadataTags.h
- */
-
-/*
- * This file defines an NDK API.
- * Do not remove methods.
- * Do not change method signatures.
- * Do not change the value of constants.
- * Do not change the size of any of the classes defined in here.
- * Do not reference types that are not part of the NDK.
- * Do not #include files that aren't part of the NDK.
- */
-
-#ifndef _NDK_CAMERA_METADATA_TAGS_H
-#define _NDK_CAMERA_METADATA_TAGS_H
-
-#include <sys/cdefs.h>
-
-__BEGIN_DECLS
-
-#if __ANDROID_API__ >= 24
-
-typedef enum acamera_metadata_section {
-    ACAMERA_COLOR_CORRECTION,
-    ACAMERA_CONTROL,
-    ACAMERA_DEMOSAIC,
-    ACAMERA_EDGE,
-    ACAMERA_FLASH,
-    ACAMERA_FLASH_INFO,
-    ACAMERA_HOT_PIXEL,
-    ACAMERA_JPEG,
-    ACAMERA_LENS,
-    ACAMERA_LENS_INFO,
-    ACAMERA_NOISE_REDUCTION,
-    ACAMERA_QUIRKS,
-    ACAMERA_REQUEST,
-    ACAMERA_SCALER,
-    ACAMERA_SENSOR,
-    ACAMERA_SENSOR_INFO,
-    ACAMERA_SHADING,
-    ACAMERA_STATISTICS,
-    ACAMERA_STATISTICS_INFO,
-    ACAMERA_TONEMAP,
-    ACAMERA_LED,
-    ACAMERA_INFO,
-    ACAMERA_BLACK_LEVEL,
-    ACAMERA_SYNC,
-    ACAMERA_REPROCESS,
-    ACAMERA_DEPTH,
-    ACAMERA_SECTION_COUNT,
-
-    ACAMERA_VENDOR = 0x8000
-} acamera_metadata_section_t;
-
-/**
- * Hierarchy positions in enum space.
- */
-typedef enum acamera_metadata_section_start {
-    ACAMERA_COLOR_CORRECTION_START = ACAMERA_COLOR_CORRECTION  << 16,
-    ACAMERA_CONTROL_START          = ACAMERA_CONTROL           << 16,
-    ACAMERA_DEMOSAIC_START         = ACAMERA_DEMOSAIC          << 16,
-    ACAMERA_EDGE_START             = ACAMERA_EDGE              << 16,
-    ACAMERA_FLASH_START            = ACAMERA_FLASH             << 16,
-    ACAMERA_FLASH_INFO_START       = ACAMERA_FLASH_INFO        << 16,
-    ACAMERA_HOT_PIXEL_START        = ACAMERA_HOT_PIXEL         << 16,
-    ACAMERA_JPEG_START             = ACAMERA_JPEG              << 16,
-    ACAMERA_LENS_START             = ACAMERA_LENS              << 16,
-    ACAMERA_LENS_INFO_START        = ACAMERA_LENS_INFO         << 16,
-    ACAMERA_NOISE_REDUCTION_START  = ACAMERA_NOISE_REDUCTION   << 16,
-    ACAMERA_QUIRKS_START           = ACAMERA_QUIRKS            << 16,
-    ACAMERA_REQUEST_START          = ACAMERA_REQUEST           << 16,
-    ACAMERA_SCALER_START           = ACAMERA_SCALER            << 16,
-    ACAMERA_SENSOR_START           = ACAMERA_SENSOR            << 16,
-    ACAMERA_SENSOR_INFO_START      = ACAMERA_SENSOR_INFO       << 16,
-    ACAMERA_SHADING_START          = ACAMERA_SHADING           << 16,
-    ACAMERA_STATISTICS_START       = ACAMERA_STATISTICS        << 16,
-    ACAMERA_STATISTICS_INFO_START  = ACAMERA_STATISTICS_INFO   << 16,
-    ACAMERA_TONEMAP_START          = ACAMERA_TONEMAP           << 16,
-    ACAMERA_LED_START              = ACAMERA_LED               << 16,
-    ACAMERA_INFO_START             = ACAMERA_INFO              << 16,
-    ACAMERA_BLACK_LEVEL_START      = ACAMERA_BLACK_LEVEL       << 16,
-    ACAMERA_SYNC_START             = ACAMERA_SYNC              << 16,
-    ACAMERA_REPROCESS_START        = ACAMERA_REPROCESS         << 16,
-    ACAMERA_DEPTH_START            = ACAMERA_DEPTH             << 16,
-    ACAMERA_VENDOR_START           = ACAMERA_VENDOR            << 16
-} acamera_metadata_section_start_t;
-
-/**
- * Main enum for camera metadata tags.
- */
-typedef enum acamera_metadata_tag {
-    /**
-     * <p>The mode control selects how the image data is converted from the
-     * sensor's native color into linear sRGB color.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>When auto-white balance (AWB) is enabled with ACAMERA_CONTROL_AWB_MODE, this
-     * control is overridden by the AWB routine. When AWB is disabled, the
-     * application controls how the color mapping is performed.</p>
-     * <p>We define the expected processing pipeline below. For consistency
-     * across devices, this is always the case with TRANSFORM_MATRIX.</p>
-     * <p>When either FULL or HIGH_QUALITY is used, the camera device may
-     * do additional processing but ACAMERA_COLOR_CORRECTION_GAINS and
-     * ACAMERA_COLOR_CORRECTION_TRANSFORM will still be provided by the
-     * camera device (in the results) and be roughly correct.</p>
-     * <p>Switching to TRANSFORM_MATRIX and using the data provided from
-     * FAST or HIGH_QUALITY will yield a picture with the same white point
-     * as what was produced by the camera device in the earlier frame.</p>
-     * <p>The expected processing pipeline is as follows:</p>
-     * <p><img alt="White balance processing pipeline" src="../images/camera2/metadata/android.colorCorrection.mode/processing_pipeline.png" /></p>
-     * <p>The white balance is encoded by two values, a 4-channel white-balance
-     * gain vector (applied in the Bayer domain), and a 3x3 color transform
-     * matrix (applied after demosaic).</p>
-     * <p>The 4-channel white-balance gains are defined as:</p>
-     * <pre><code>ACAMERA_COLOR_CORRECTION_GAINS = [ R G_even G_odd B ]
-     * </code></pre>
-     * <p>where <code>G_even</code> is the gain for green pixels on even rows of the
-     * output, and <code>G_odd</code> is the gain for green pixels on the odd rows.
-     * These may be identical for a given camera device implementation; if
-     * the camera device does not support a separate gain for even/odd green
-     * channels, it will use the <code>G_even</code> value, and write <code>G_odd</code> equal to
-     * <code>G_even</code> in the output result metadata.</p>
-     * <p>The matrices for color transforms are defined as a 9-entry vector:</p>
-     * <pre><code>ACAMERA_COLOR_CORRECTION_TRANSFORM = [ I0 I1 I2 I3 I4 I5 I6 I7 I8 ]
-     * </code></pre>
-     * <p>which define a transform from input sensor colors, <code>P_in = [ r g b ]</code>,
-     * to output linear sRGB, <code>P_out = [ r' g' b' ]</code>,</p>
-     * <p>with colors as follows:</p>
-     * <pre><code>r' = I0r + I1g + I2b
-     * g' = I3r + I4g + I5b
-     * b' = I6r + I7g + I8b
-     * </code></pre>
-     * <p>Both the input and output value ranges must match. Overflow/underflow
-     * values are clipped to fit within the range.</p>
-     *
-     * @see ACAMERA_COLOR_CORRECTION_GAINS
-     * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
-     * @see ACAMERA_CONTROL_AWB_MODE
-     */
-    ACAMERA_COLOR_CORRECTION_MODE =                             // byte (enum)
-            ACAMERA_COLOR_CORRECTION_START,
-    /**
-     * <p>A color transform matrix to use to transform
-     * from sensor RGB color space to output linear sRGB color space.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>This matrix is either set by the camera device when the request
-     * ACAMERA_COLOR_CORRECTION_MODE is not TRANSFORM_MATRIX, or
-     * directly by the application in the request when the
-     * ACAMERA_COLOR_CORRECTION_MODE is TRANSFORM_MATRIX.</p>
-     * <p>In the latter case, the camera device may round the matrix to account
-     * for precision issues; the final rounded matrix should be reported back
-     * in this matrix result metadata. The transform should keep the magnitude
-     * of the output color values within <code>[0, 1.0]</code> (assuming input color
-     * values is within the normalized range <code>[0, 1.0]</code>), or clipping may occur.</p>
-     * <p>The valid range of each matrix element varies on different devices, but
-     * values within [-1.5, 3.0] are guaranteed not to be clipped.</p>
-     *
-     * @see ACAMERA_COLOR_CORRECTION_MODE
-     */
-    ACAMERA_COLOR_CORRECTION_TRANSFORM =                        // rational[3*3]
-            ACAMERA_COLOR_CORRECTION_START + 1,
-    /**
-     * <p>Gains applying to Bayer raw color channels for
-     * white-balance.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>These per-channel gains are either set by the camera device
-     * when the request ACAMERA_COLOR_CORRECTION_MODE is not
-     * TRANSFORM_MATRIX, or directly by the application in the
-     * request when the ACAMERA_COLOR_CORRECTION_MODE is
-     * TRANSFORM_MATRIX.</p>
-     * <p>The gains in the result metadata are the gains actually
-     * applied by the camera device to the current frame.</p>
-     * <p>The valid range of gains varies on different devices, but gains
-     * between [1.0, 3.0] are guaranteed not to be clipped. Even if a given
-     * device allows gains below 1.0, this is usually not recommended because
-     * this can create color artifacts.</p>
-     *
-     * @see ACAMERA_COLOR_CORRECTION_MODE
-     */
-    ACAMERA_COLOR_CORRECTION_GAINS =                            // float[4]
-            ACAMERA_COLOR_CORRECTION_START + 2,
-    /**
-     * <p>Mode of operation for the chromatic aberration correction algorithm.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>Chromatic (color) aberration is caused by the fact that different wavelengths of light
-     * can not focus on the same point after exiting from the lens. This metadata defines
-     * the high level control of chromatic aberration correction algorithm, which aims to
-     * minimize the chromatic artifacts that may occur along the object boundaries in an
-     * image.</p>
-     * <p>FAST/HIGH_QUALITY both mean that camera device determined aberration
-     * correction will be applied. HIGH_QUALITY mode indicates that the camera device will
-     * use the highest-quality aberration correction algorithms, even if it slows down
-     * capture rate. FAST means the camera device will not slow down capture rate when
-     * applying aberration correction.</p>
-     * <p>LEGACY devices will always be in FAST mode.</p>
-     */
-    ACAMERA_COLOR_CORRECTION_ABERRATION_MODE =                  // byte (enum)
-            ACAMERA_COLOR_CORRECTION_START + 3,
-    /**
-     * <p>List of aberration correction modes for ACAMERA_COLOR_CORRECTION_ABERRATION_MODE that are
-     * supported by this camera device.</p>
-     *
-     * @see ACAMERA_COLOR_CORRECTION_ABERRATION_MODE
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>This key lists the valid modes for ACAMERA_COLOR_CORRECTION_ABERRATION_MODE.  If no
-     * aberration correction modes are available for a device, this list will solely include
-     * OFF mode. All camera devices will support either OFF or FAST mode.</p>
-     * <p>Camera devices that support the MANUAL_POST_PROCESSING capability will always list
-     * OFF mode. This includes all FULL level devices.</p>
-     * <p>LEGACY devices will always only support FAST mode.</p>
-     *
-     * @see ACAMERA_COLOR_CORRECTION_ABERRATION_MODE
-     */
-    ACAMERA_COLOR_CORRECTION_AVAILABLE_ABERRATION_MODES =       // byte[n]
-            ACAMERA_COLOR_CORRECTION_START + 4,
-    ACAMERA_COLOR_CORRECTION_END,
-
-    /**
-     * <p>The desired setting for the camera device's auto-exposure
-     * algorithm's antibanding compensation.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>Some kinds of lighting fixtures, such as some fluorescent
-     * lights, flicker at the rate of the power supply frequency
-     * (60Hz or 50Hz, depending on country). While this is
-     * typically not noticeable to a person, it can be visible to
-     * a camera device. If a camera sets its exposure time to the
-     * wrong value, the flicker may become visible in the
-     * viewfinder as flicker or in a final captured image, as a
-     * set of variable-brightness bands across the image.</p>
-     * <p>Therefore, the auto-exposure routines of camera devices
-     * include antibanding routines that ensure that the chosen
-     * exposure value will not cause such banding. The choice of
-     * exposure time depends on the rate of flicker, which the
-     * camera device can detect automatically, or the expected
-     * rate can be selected by the application using this
-     * control.</p>
-     * <p>A given camera device may not support all of the possible
-     * options for the antibanding mode. The
-     * ACAMERA_CONTROL_AE_AVAILABLE_ANTIBANDING_MODES key contains
-     * the available modes for a given camera device.</p>
-     * <p>AUTO mode is the default if it is available on given
-     * camera device. When AUTO mode is not available, the
-     * default will be either 50HZ or 60HZ, and both 50HZ
-     * and 60HZ will be available.</p>
-     * <p>If manual exposure control is enabled (by setting
-     * ACAMERA_CONTROL_AE_MODE or ACAMERA_CONTROL_MODE to OFF),
-     * then this setting has no effect, and the application must
-     * ensure it selects exposure times that do not cause banding
-     * issues. The ACAMERA_STATISTICS_SCENE_FLICKER key can assist
-     * the application in this.</p>
-     *
-     * @see ACAMERA_CONTROL_AE_AVAILABLE_ANTIBANDING_MODES
-     * @see ACAMERA_CONTROL_AE_MODE
-     * @see ACAMERA_CONTROL_MODE
-     * @see ACAMERA_STATISTICS_SCENE_FLICKER
-     */
-    ACAMERA_CONTROL_AE_ANTIBANDING_MODE =                       // byte (enum)
-            ACAMERA_CONTROL_START,
-    /**
-     * <p>Adjustment to auto-exposure (AE) target image
-     * brightness.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>The adjustment is measured as a count of steps, with the
-     * step size defined by ACAMERA_CONTROL_AE_COMPENSATION_STEP and the
-     * allowed range by ACAMERA_CONTROL_AE_COMPENSATION_RANGE.</p>
-     * <p>For example, if the exposure value (EV) step is 0.333, '6'
-     * will mean an exposure compensation of +2 EV; -3 will mean an
-     * exposure compensation of -1 EV. One EV represents a doubling
-     * of image brightness. Note that this control will only be
-     * effective if ACAMERA_CONTROL_AE_MODE <code>!=</code> OFF. This control
-     * will take effect even when ACAMERA_CONTROL_AE_LOCK <code>== true</code>.</p>
-     * <p>In the event of exposure compensation value being changed, camera device
-     * may take several frames to reach the newly requested exposure target.
-     * During that time, ACAMERA_CONTROL_AE_STATE field will be in the SEARCHING
-     * state. Once the new exposure target is reached, ACAMERA_CONTROL_AE_STATE will
-     * change from SEARCHING to either CONVERGED, LOCKED (if AE lock is enabled), or
-     * FLASH_REQUIRED (if the scene is too dark for still capture).</p>
-     *
-     * @see ACAMERA_CONTROL_AE_COMPENSATION_RANGE
-     * @see ACAMERA_CONTROL_AE_COMPENSATION_STEP
-     * @see ACAMERA_CONTROL_AE_LOCK
-     * @see ACAMERA_CONTROL_AE_MODE
-     * @see ACAMERA_CONTROL_AE_STATE
-     */
-    ACAMERA_CONTROL_AE_EXPOSURE_COMPENSATION =                  // int32
-            ACAMERA_CONTROL_START + 1,
-    /**
-     * <p>Whether auto-exposure (AE) is currently locked to its latest
-     * calculated values.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>When set to <code>true</code> (ON), the AE algorithm is locked to its latest parameters,
-     * and will not change exposure settings until the lock is set to <code>false</code> (OFF).</p>
-     * <p>Note that even when AE is locked, the flash may be fired if
-     * the ACAMERA_CONTROL_AE_MODE is ON_AUTO_FLASH /
-     * ON_ALWAYS_FLASH / ON_AUTO_FLASH_REDEYE.</p>
-     * <p>When ACAMERA_CONTROL_AE_EXPOSURE_COMPENSATION is changed, even if the AE lock
-     * is ON, the camera device will still adjust its exposure value.</p>
-     * <p>If AE precapture is triggered (see ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER)
-     * when AE is already locked, the camera device will not change the exposure time
-     * (ACAMERA_SENSOR_EXPOSURE_TIME) and sensitivity (ACAMERA_SENSOR_SENSITIVITY)
-     * parameters. The flash may be fired if the ACAMERA_CONTROL_AE_MODE
-     * is ON_AUTO_FLASH/ON_AUTO_FLASH_REDEYE and the scene is too dark. If the
-     * ACAMERA_CONTROL_AE_MODE is ON_ALWAYS_FLASH, the scene may become overexposed.
-     * Similarly, AE precapture trigger CANCEL has no effect when AE is already locked.</p>
-     * <p>When an AE precapture sequence is triggered, AE unlock will not be able to unlock
-     * the AE if AE is locked by the camera device internally during precapture metering
-     * sequence In other words, submitting requests with AE unlock has no effect for an
-     * ongoing precapture metering sequence. Otherwise, the precapture metering sequence
-     * will never succeed in a sequence of preview requests where AE lock is always set
-     * to <code>false</code>.</p>
-     * <p>Since the camera device has a pipeline of in-flight requests, the settings that
-     * get locked do not necessarily correspond to the settings that were present in the
-     * latest capture result received from the camera device, since additional captures
-     * and AE updates may have occurred even before the result was sent out. If an
-     * application is switching between automatic and manual control and wishes to eliminate
-     * any flicker during the switch, the following procedure is recommended:</p>
-     * <ol>
-     * <li>Starting in auto-AE mode:</li>
-     * <li>Lock AE</li>
-     * <li>Wait for the first result to be output that has the AE locked</li>
-     * <li>Copy exposure settings from that result into a request, set the request to manual AE</li>
-     * <li>Submit the capture request, proceed to run manual AE as desired.</li>
-     * </ol>
-     * <p>See ACAMERA_CONTROL_AE_STATE for AE lock related state transition details.</p>
-     *
-     * @see ACAMERA_CONTROL_AE_EXPOSURE_COMPENSATION
-     * @see ACAMERA_CONTROL_AE_MODE
-     * @see ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER
-     * @see ACAMERA_CONTROL_AE_STATE
-     * @see ACAMERA_SENSOR_EXPOSURE_TIME
-     * @see ACAMERA_SENSOR_SENSITIVITY
-     */
-    ACAMERA_CONTROL_AE_LOCK =                                   // byte (enum)
-            ACAMERA_CONTROL_START + 2,
-    /**
-     * <p>The desired mode for the camera device's
-     * auto-exposure routine.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>This control is only effective if ACAMERA_CONTROL_MODE is
-     * AUTO.</p>
-     * <p>When set to any of the ON modes, the camera device's
-     * auto-exposure routine is enabled, overriding the
-     * application's selected exposure time, sensor sensitivity,
-     * and frame duration (ACAMERA_SENSOR_EXPOSURE_TIME,
-     * ACAMERA_SENSOR_SENSITIVITY, and
-     * ACAMERA_SENSOR_FRAME_DURATION). If one of the FLASH modes
-     * is selected, the camera device's flash unit controls are
-     * also overridden.</p>
-     * <p>The FLASH modes are only available if the camera device
-     * has a flash unit (ACAMERA_FLASH_INFO_AVAILABLE is <code>true</code>).</p>
-     * <p>If flash TORCH mode is desired, this field must be set to
-     * ON or OFF, and ACAMERA_FLASH_MODE set to TORCH.</p>
-     * <p>When set to any of the ON modes, the values chosen by the
-     * camera device auto-exposure routine for the overridden
-     * fields for a given capture will be available in its
-     * CaptureResult.</p>
-     *
-     * @see ACAMERA_CONTROL_MODE
-     * @see ACAMERA_FLASH_INFO_AVAILABLE
-     * @see ACAMERA_FLASH_MODE
-     * @see ACAMERA_SENSOR_EXPOSURE_TIME
-     * @see ACAMERA_SENSOR_FRAME_DURATION
-     * @see ACAMERA_SENSOR_SENSITIVITY
-     */
-    ACAMERA_CONTROL_AE_MODE =                                   // byte (enum)
-            ACAMERA_CONTROL_START + 3,
-    /**
-     * <p>List of metering areas to use for auto-exposure adjustment.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>Not available if android.control.maxRegionsAe is 0.
-     * Otherwise will always be present.</p>
-     * <p>The maximum number of regions supported by the device is determined by the value
-     * of android.control.maxRegionsAe.</p>
-     * <p>The data representation is int[5 * area_count].
-     * Every five elements represent a metering region of (xmin, ymin, xmax, ymax, weight).
-     * The rectangle is defined to be inclusive on xmin and ymin, but exclusive on xmax and
-     * ymax.</p>
-     * <p>The coordinate system is based on the active pixel array,
-     * with (0,0) being the top-left pixel in the active pixel array, and
-     * (ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE.width - 1,
-     * ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE.height - 1) being the
-     * bottom-right pixel in the active pixel array.</p>
-     * <p>The weight must be within <code>[0, 1000]</code>, and represents a weight
-     * for every pixel in the area. This means that a large metering area
-     * with the same weight as a smaller area will have more effect in
-     * the metering result. Metering areas can partially overlap and the
-     * camera device will add the weights in the overlap region.</p>
-     * <p>The weights are relative to weights of other exposure metering regions, so if only one
-     * region is used, all non-zero weights will have the same effect. A region with 0
-     * weight is ignored.</p>
-     * <p>If all regions have 0 weight, then no specific metering area needs to be used by the
-     * camera device.</p>
-     * <p>If the metering region is outside the used ACAMERA_SCALER_CROP_REGION returned in
-     * capture result metadata, the camera device will ignore the sections outside the crop
-     * region and output only the intersection rectangle as the metering region in the result
-     * metadata.  If the region is entirely outside the crop region, it will be ignored and
-     * not reported in the result metadata.</p>
-     *
-     * @see ACAMERA_SCALER_CROP_REGION
-     * @see ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
-     */
-    ACAMERA_CONTROL_AE_REGIONS =                                // int32[5*area_count]
-            ACAMERA_CONTROL_START + 4,
-    /**
-     * <p>Range over which the auto-exposure routine can
-     * adjust the capture frame rate to maintain good
-     * exposure.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>Only constrains auto-exposure (AE) algorithm, not
-     * manual control of ACAMERA_SENSOR_EXPOSURE_TIME and
-     * ACAMERA_SENSOR_FRAME_DURATION.</p>
-     *
-     * @see ACAMERA_SENSOR_EXPOSURE_TIME
-     * @see ACAMERA_SENSOR_FRAME_DURATION
-     */
-    ACAMERA_CONTROL_AE_TARGET_FPS_RANGE =                       // int32[2]
-            ACAMERA_CONTROL_START + 5,
-    /**
-     * <p>Whether the camera device will trigger a precapture
-     * metering sequence when it processes this request.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>This entry is normally set to IDLE, or is not
-     * included at all in the request settings. When included and
-     * set to START, the camera device will trigger the auto-exposure (AE)
-     * precapture metering sequence.</p>
-     * <p>When set to CANCEL, the camera device will cancel any active
-     * precapture metering trigger, and return to its initial AE state.
-     * If a precapture metering sequence is already completed, and the camera
-     * device has implicitly locked the AE for subsequent still capture, the
-     * CANCEL trigger will unlock the AE and return to its initial AE state.</p>
-     * <p>The precapture sequence should be triggered before starting a
-     * high-quality still capture for final metering decisions to
-     * be made, and for firing pre-capture flash pulses to estimate
-     * scene brightness and required final capture flash power, when
-     * the flash is enabled.</p>
-     * <p>Normally, this entry should be set to START for only a
-     * single request, and the application should wait until the
-     * sequence completes before starting a new one.</p>
-     * <p>When a precapture metering sequence is finished, the camera device
-     * may lock the auto-exposure routine internally to be able to accurately expose the
-     * subsequent still capture image (<code>ACAMERA_CONTROL_CAPTURE_INTENT == STILL_CAPTURE</code>).
-     * For this case, the AE may not resume normal scan if no subsequent still capture is
-     * submitted. To ensure that the AE routine restarts normal scan, the application should
-     * submit a request with <code>ACAMERA_CONTROL_AE_LOCK == true</code>, followed by a request
-     * with <code>ACAMERA_CONTROL_AE_LOCK == false</code>, if the application decides not to submit a
-     * still capture request after the precapture sequence completes. Alternatively, for
-     * API level 23 or newer devices, the CANCEL can be used to unlock the camera device
-     * internally locked AE if the application doesn't submit a still capture request after
-     * the AE precapture trigger. Note that, the CANCEL was added in API level 23, and must not
-     * be used in devices that have earlier API levels.</p>
-     * <p>The exact effect of auto-exposure (AE) precapture trigger
-     * depends on the current AE mode and state; see
-     * ACAMERA_CONTROL_AE_STATE for AE precapture state transition
-     * details.</p>
-     * <p>On LEGACY-level devices, the precapture trigger is not supported;
-     * capturing a high-resolution JPEG image will automatically trigger a
-     * precapture sequence before the high-resolution capture, including
-     * potentially firing a pre-capture flash.</p>
-     * <p>Using the precapture trigger and the auto-focus trigger ACAMERA_CONTROL_AF_TRIGGER
-     * simultaneously is allowed. However, since these triggers often require cooperation between
-     * the auto-focus and auto-exposure routines (for example, the may need to be enabled for a
-     * focus sweep), the camera device may delay acting on a later trigger until the previous
-     * trigger has been fully handled. This may lead to longer intervals between the trigger and
-     * changes to ACAMERA_CONTROL_AE_STATE indicating the start of the precapture sequence, for
-     * example.</p>
-     * <p>If both the precapture and the auto-focus trigger are activated on the same request, then
-     * the camera device will complete them in the optimal order for that device.</p>
-     *
-     * @see ACAMERA_CONTROL_AE_LOCK
-     * @see ACAMERA_CONTROL_AE_STATE
-     * @see ACAMERA_CONTROL_AF_TRIGGER
-     * @see ACAMERA_CONTROL_CAPTURE_INTENT
-     */
-    ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER =                     // byte (enum)
-            ACAMERA_CONTROL_START + 6,
-    /**
-     * <p>Whether auto-focus (AF) is currently enabled, and what
-     * mode it is set to.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>Only effective if ACAMERA_CONTROL_MODE = AUTO and the lens is not fixed focus
-     * (i.e. <code>ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE &gt; 0</code>). Also note that
-     * when ACAMERA_CONTROL_AE_MODE is OFF, the behavior of AF is device
-     * dependent. It is recommended to lock AF by using ACAMERA_CONTROL_AF_TRIGGER before
-     * setting ACAMERA_CONTROL_AE_MODE to OFF, or set AF mode to OFF when AE is OFF.</p>
-     * <p>If the lens is controlled by the camera device auto-focus algorithm,
-     * the camera device will report the current AF status in ACAMERA_CONTROL_AF_STATE
-     * in result metadata.</p>
-     *
-     * @see ACAMERA_CONTROL_AE_MODE
-     * @see ACAMERA_CONTROL_AF_STATE
-     * @see ACAMERA_CONTROL_AF_TRIGGER
-     * @see ACAMERA_CONTROL_MODE
-     * @see ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE
-     */
-    ACAMERA_CONTROL_AF_MODE =                                   // byte (enum)
-            ACAMERA_CONTROL_START + 7,
-    /**
-     * <p>List of metering areas to use for auto-focus.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>Not available if android.control.maxRegionsAf is 0.
-     * Otherwise will always be present.</p>
-     * <p>The maximum number of focus areas supported by the device is determined by the value
-     * of android.control.maxRegionsAf.</p>
-     * <p>The data representation is int[5 * area_count].
-     * Every five elements represent a metering region of (xmin, ymin, xmax, ymax, weight).
-     * The rectangle is defined to be inclusive on xmin and ymin, but exclusive on xmax and
-     * ymax.</p>
-     * <p>The coordinate system is based on the active pixel array,
-     * with (0,0) being the top-left pixel in the active pixel array, and
-     * (ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE.width - 1,
-     * ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE.height - 1) being the
-     * bottom-right pixel in the active pixel array.</p>
-     * <p>The weight must be within <code>[0, 1000]</code>, and represents a weight
-     * for every pixel in the area. This means that a large metering area
-     * with the same weight as a smaller area will have more effect in
-     * the metering result. Metering areas can partially overlap and the
-     * camera device will add the weights in the overlap region.</p>
-     * <p>The weights are relative to weights of other metering regions, so if only one region
-     * is used, all non-zero weights will have the same effect. A region with 0 weight is
-     * ignored.</p>
-     * <p>If all regions have 0 weight, then no specific metering area needs to be used by the
-     * camera device.</p>
-     * <p>If the metering region is outside the used ACAMERA_SCALER_CROP_REGION returned in
-     * capture result metadata, the camera device will ignore the sections outside the crop
-     * region and output only the intersection rectangle as the metering region in the result
-     * metadata. If the region is entirely outside the crop region, it will be ignored and
-     * not reported in the result metadata.</p>
-     *
-     * @see ACAMERA_SCALER_CROP_REGION
-     * @see ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
-     */
-    ACAMERA_CONTROL_AF_REGIONS =                                // int32[5*area_count]
-            ACAMERA_CONTROL_START + 8,
-    /**
-     * <p>Whether the camera device will trigger autofocus for this request.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>This entry is normally set to IDLE, or is not
-     * included at all in the request settings.</p>
-     * <p>When included and set to START, the camera device will trigger the
-     * autofocus algorithm. If autofocus is disabled, this trigger has no effect.</p>
-     * <p>When set to CANCEL, the camera device will cancel any active trigger,
-     * and return to its initial AF state.</p>
-     * <p>Generally, applications should set this entry to START or CANCEL for only a
-     * single capture, and then return it to IDLE (or not set at all). Specifying
-     * START for multiple captures in a row means restarting the AF operation over
-     * and over again.</p>
-     * <p>See ACAMERA_CONTROL_AF_STATE for what the trigger means for each AF mode.</p>
-     * <p>Using the autofocus trigger and the precapture trigger ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER
-     * simultaneously is allowed. However, since these triggers often require cooperation between
-     * the auto-focus and auto-exposure routines (for example, the may need to be enabled for a
-     * focus sweep), the camera device may delay acting on a later trigger until the previous
-     * trigger has been fully handled. This may lead to longer intervals between the trigger and
-     * changes to ACAMERA_CONTROL_AF_STATE, for example.</p>
-     *
-     * @see ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER
-     * @see ACAMERA_CONTROL_AF_STATE
-     */
-    ACAMERA_CONTROL_AF_TRIGGER =                                // byte (enum)
-            ACAMERA_CONTROL_START + 9,
-    /**
-     * <p>Whether auto-white balance (AWB) is currently locked to its
-     * latest calculated values.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>When set to <code>true</code> (ON), the AWB algorithm is locked to its latest parameters,
-     * and will not change color balance settings until the lock is set to <code>false</code> (OFF).</p>
-     * <p>Since the camera device has a pipeline of in-flight requests, the settings that
-     * get locked do not necessarily correspond to the settings that were present in the
-     * latest capture result received from the camera device, since additional captures
-     * and AWB updates may have occurred even before the result was sent out. If an
-     * application is switching between automatic and manual control and wishes to eliminate
-     * any flicker during the switch, the following procedure is recommended:</p>
-     * <ol>
-     * <li>Starting in auto-AWB mode:</li>
-     * <li>Lock AWB</li>
-     * <li>Wait for the first result to be output that has the AWB locked</li>
-     * <li>Copy AWB settings from that result into a request, set the request to manual AWB</li>
-     * <li>Submit the capture request, proceed to run manual AWB as desired.</li>
-     * </ol>
-     * <p>Note that AWB lock is only meaningful when
-     * ACAMERA_CONTROL_AWB_MODE is in the AUTO mode; in other modes,
-     * AWB is already fixed to a specific setting.</p>
-     * <p>Some LEGACY devices may not support ON; the value is then overridden to OFF.</p>
-     *
-     * @see ACAMERA_CONTROL_AWB_MODE
-     */
-    ACAMERA_CONTROL_AWB_LOCK =                                  // byte (enum)
-            ACAMERA_CONTROL_START + 10,
-    /**
-     * <p>Whether auto-white balance (AWB) is currently setting the color
-     * transform fields, and what its illumination target
-     * is.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>This control is only effective if ACAMERA_CONTROL_MODE is AUTO.</p>
-     * <p>When set to the ON mode, the camera device's auto-white balance
-     * routine is enabled, overriding the application's selected
-     * ACAMERA_COLOR_CORRECTION_TRANSFORM, ACAMERA_COLOR_CORRECTION_GAINS and
-     * ACAMERA_COLOR_CORRECTION_MODE. Note that when ACAMERA_CONTROL_AE_MODE
-     * is OFF, the behavior of AWB is device dependent. It is recommened to
-     * also set AWB mode to OFF or lock AWB by using ACAMERA_CONTROL_AWB_LOCK before
-     * setting AE mode to OFF.</p>
-     * <p>When set to the OFF mode, the camera device's auto-white balance
-     * routine is disabled. The application manually controls the white
-     * balance by ACAMERA_COLOR_CORRECTION_TRANSFORM, ACAMERA_COLOR_CORRECTION_GAINS
-     * and ACAMERA_COLOR_CORRECTION_MODE.</p>
-     * <p>When set to any other modes, the camera device's auto-white
-     * balance routine is disabled. The camera device uses each
-     * particular illumination target for white balance
-     * adjustment. The application's values for
-     * ACAMERA_COLOR_CORRECTION_TRANSFORM,
-     * ACAMERA_COLOR_CORRECTION_GAINS and
-     * ACAMERA_COLOR_CORRECTION_MODE are ignored.</p>
-     *
-     * @see ACAMERA_COLOR_CORRECTION_GAINS
-     * @see ACAMERA_COLOR_CORRECTION_MODE
-     * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
-     * @see ACAMERA_CONTROL_AE_MODE
-     * @see ACAMERA_CONTROL_AWB_LOCK
-     * @see ACAMERA_CONTROL_MODE
-     */
-    ACAMERA_CONTROL_AWB_MODE =                                  // byte (enum)
-            ACAMERA_CONTROL_START + 11,
-    /**
-     * <p>List of metering areas to use for auto-white-balance illuminant
-     * estimation.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>Not available if android.control.maxRegionsAwb is 0.
-     * Otherwise will always be present.</p>
-     * <p>The maximum number of regions supported by the device is determined by the value
-     * of android.control.maxRegionsAwb.</p>
-     * <p>The data representation is int[5 * area_count].
-     * Every five elements represent a metering region of (xmin, ymin, xmax, ymax, weight).
-     * The rectangle is defined to be inclusive on xmin and ymin, but exclusive on xmax and
-     * ymax.</p>
-     * <p>The coordinate system is based on the active pixel array,
-     * with (0,0) being the top-left pixel in the active pixel array, and
-     * (ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE.width - 1,
-     * ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE.height - 1) being the
-     * bottom-right pixel in the active pixel array.</p>
-     * <p>The weight must range from 0 to 1000, and represents a weight
-     * for every pixel in the area. This means that a large metering area
-     * with the same weight as a smaller area will have more effect in
-     * the metering result. Metering areas can partially overlap and the
-     * camera device will add the weights in the overlap region.</p>
-     * <p>The weights are relative to weights of other white balance metering regions, so if
-     * only one region is used, all non-zero weights will have the same effect. A region with
-     * 0 weight is ignored.</p>
-     * <p>If all regions have 0 weight, then no specific metering area needs to be used by the
-     * camera device.</p>
-     * <p>If the metering region is outside the used ACAMERA_SCALER_CROP_REGION returned in
-     * capture result metadata, the camera device will ignore the sections outside the crop
-     * region and output only the intersection rectangle as the metering region in the result
-     * metadata.  If the region is entirely outside the crop region, it will be ignored and
-     * not reported in the result metadata.</p>
-     *
-     * @see ACAMERA_SCALER_CROP_REGION
-     * @see ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
-     */
-    ACAMERA_CONTROL_AWB_REGIONS =                               // int32[5*area_count]
-            ACAMERA_CONTROL_START + 12,
-    /**
-     * <p>Information to the camera device 3A (auto-exposure,
-     * auto-focus, auto-white balance) routines about the purpose
-     * of this capture, to help the camera device to decide optimal 3A
-     * strategy.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>This control (except for MANUAL) is only effective if
-     * <code>ACAMERA_CONTROL_MODE != OFF</code> and any 3A routine is active.</p>
-     * <p>ZERO_SHUTTER_LAG will be supported if ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
-     * contains PRIVATE_REPROCESSING or YUV_REPROCESSING. MANUAL will be supported if
-     * ACAMERA_REQUEST_AVAILABLE_CAPABILITIES contains MANUAL_SENSOR. Other intent values are
-     * always supported.</p>
-     *
-     * @see ACAMERA_CONTROL_MODE
-     * @see ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
-     */
-    ACAMERA_CONTROL_CAPTURE_INTENT =                            // byte (enum)
-            ACAMERA_CONTROL_START + 13,
-    /**
-     * <p>A special color effect to apply.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>When this mode is set, a color effect will be applied
-     * to images produced by the camera device. The interpretation
-     * and implementation of these color effects is left to the
-     * implementor of the camera device, and should not be
-     * depended on to be consistent (or present) across all
-     * devices.</p>
-     */
-    ACAMERA_CONTROL_EFFECT_MODE =                               // byte (enum)
-            ACAMERA_CONTROL_START + 14,
-    /**
-     * <p>Overall mode of 3A (auto-exposure, auto-white-balance, auto-focus) control
-     * routines.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>This is a top-level 3A control switch. When set to OFF, all 3A control
-     * by the camera device is disabled. The application must set the fields for
-     * capture parameters itself.</p>
-     * <p>When set to AUTO, the individual algorithm controls in
-     * ACAMERA_CONTROL_* are in effect, such as ACAMERA_CONTROL_AF_MODE.</p>
-     * <p>When set to USE_SCENE_MODE, the individual controls in
-     * ACAMERA_CONTROL_* are mostly disabled, and the camera device implements
-     * one of the scene mode settings (such as ACTION, SUNSET, or PARTY)
-     * as it wishes. The camera device scene mode 3A settings are provided by
-     * capture results {@link ACameraMetadata} from
-     * {@link ACameraCaptureSession_captureCallback_result}.</p>
-     * <p>When set to OFF_KEEP_STATE, it is similar to OFF mode, the only difference
-     * is that this frame will not be used by camera device background 3A statistics
-     * update, as if this frame is never captured. This mode can be used in the scenario
-     * where the application doesn't want a 3A manual control capture to affect
-     * the subsequent auto 3A capture results.</p>
-     *
-     * @see ACAMERA_CONTROL_AF_MODE
-     */
-    ACAMERA_CONTROL_MODE =                                      // byte (enum)
-            ACAMERA_CONTROL_START + 15,
-    /**
-     * <p>Control for which scene mode is currently active.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>Scene modes are custom camera modes optimized for a certain set of conditions and
-     * capture settings.</p>
-     * <p>This is the mode that that is active when
-     * <code>ACAMERA_CONTROL_MODE == USE_SCENE_MODE</code>. Aside from FACE_PRIORITY, these modes will
-     * disable ACAMERA_CONTROL_AE_MODE, ACAMERA_CONTROL_AWB_MODE, and ACAMERA_CONTROL_AF_MODE
-     * while in use.</p>
-     * <p>The interpretation and implementation of these scene modes is left
-     * to the implementor of the camera device. Their behavior will not be
-     * consistent across all devices, and any given device may only implement
-     * a subset of these modes.</p>
-     *
-     * @see ACAMERA_CONTROL_AE_MODE
-     * @see ACAMERA_CONTROL_AF_MODE
-     * @see ACAMERA_CONTROL_AWB_MODE
-     * @see ACAMERA_CONTROL_MODE
-     */
-    ACAMERA_CONTROL_SCENE_MODE =                                // byte (enum)
-            ACAMERA_CONTROL_START + 16,
-    /**
-     * <p>Whether video stabilization is
-     * active.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>Video stabilization automatically warps images from
-     * the camera in order to stabilize motion between consecutive frames.</p>
-     * <p>If enabled, video stabilization can modify the
-     * ACAMERA_SCALER_CROP_REGION to keep the video stream stabilized.</p>
-     * <p>Switching between different video stabilization modes may take several
-     * frames to initialize, the camera device will report the current mode
-     * in capture result metadata. For example, When "ON" mode is requested,
-     * the video stabilization modes in the first several capture results may
-     * still be "OFF", and it will become "ON" when the initialization is
-     * done.</p>
-     * <p>In addition, not all recording sizes or frame rates may be supported for
-     * stabilization by a device that reports stabilization support. It is guaranteed
-     * that an output targeting a MediaRecorder or MediaCodec will be stabilized if
-     * the recording resolution is less than or equal to 1920 x 1080 (width less than
-     * or equal to 1920, height less than or equal to 1080), and the recording
-     * frame rate is less than or equal to 30fps.  At other sizes, the CaptureResult
-     * ACAMERA_CONTROL_VIDEO_STABILIZATION_MODE field will return
-     * OFF if the recording output is not stabilized, or if there are no output
-     * Surface types that can be stabilized.</p>
-     * <p>If a camera device supports both this mode and OIS
-     * (ACAMERA_LENS_OPTICAL_STABILIZATION_MODE), turning both modes on may
-     * produce undesirable interaction, so it is recommended not to enable
-     * both at the same time.</p>
-     *
-     * @see ACAMERA_CONTROL_VIDEO_STABILIZATION_MODE
-     * @see ACAMERA_LENS_OPTICAL_STABILIZATION_MODE
-     * @see ACAMERA_SCALER_CROP_REGION
-     */
-    ACAMERA_CONTROL_VIDEO_STABILIZATION_MODE =                  // byte (enum)
-            ACAMERA_CONTROL_START + 17,
-    /**
-     * <p>List of auto-exposure antibanding modes for ACAMERA_CONTROL_AE_ANTIBANDING_MODE that are
-     * supported by this camera device.</p>
-     *
-     * @see ACAMERA_CONTROL_AE_ANTIBANDING_MODE
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>Not all of the auto-exposure anti-banding modes may be
-     * supported by a given camera device. This field lists the
-     * valid anti-banding modes that the application may request
-     * for this camera device with the
-     * ACAMERA_CONTROL_AE_ANTIBANDING_MODE control.</p>
-     *
-     * @see ACAMERA_CONTROL_AE_ANTIBANDING_MODE
-     */
-    ACAMERA_CONTROL_AE_AVAILABLE_ANTIBANDING_MODES =            // byte[n]
-            ACAMERA_CONTROL_START + 18,
-    /**
-     * <p>List of auto-exposure modes for ACAMERA_CONTROL_AE_MODE that are supported by this camera
-     * device.</p>
-     *
-     * @see ACAMERA_CONTROL_AE_MODE
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>Not all the auto-exposure modes may be supported by a
-     * given camera device, especially if no flash unit is
-     * available. This entry lists the valid modes for
-     * ACAMERA_CONTROL_AE_MODE for this camera device.</p>
-     * <p>All camera devices support ON, and all camera devices with flash
-     * units support ON_AUTO_FLASH and ON_ALWAYS_FLASH.</p>
-     * <p>FULL mode camera devices always support OFF mode,
-     * which enables application control of camera exposure time,
-     * sensitivity, and frame duration.</p>
-     * <p>LEGACY mode camera devices never support OFF mode.
-     * LIMITED mode devices support OFF if they support the MANUAL_SENSOR
-     * capability.</p>
-     *
-     * @see ACAMERA_CONTROL_AE_MODE
-     */
-    ACAMERA_CONTROL_AE_AVAILABLE_MODES =                        // byte[n]
-            ACAMERA_CONTROL_START + 19,
-    /**
-     * <p>List of frame rate ranges for ACAMERA_CONTROL_AE_TARGET_FPS_RANGE supported by
-     * this camera device.</p>
-     *
-     * @see ACAMERA_CONTROL_AE_TARGET_FPS_RANGE
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>For devices at the LEGACY level or above:</p>
-     * <ul>
-     * <li>
-     * <p>For constant-framerate recording, for each normal
-     * <a href="https://developer.android.com/reference/android/media/CamcorderProfile.html">CamcorderProfile</a>, that is, a
-     * <a href="https://developer.android.com/reference/android/media/CamcorderProfile.html">CamcorderProfile</a> that has
-     * <a href="https://developer.android.com/reference/android/media/CamcorderProfile.html#quality">quality</a>
-     * in the range [
-     * <a href="https://developer.android.com/reference/android/media/CamcorderProfile.html#QUALITY_LOW">QUALITY_LOW</a>,
-     * <a href="https://developer.android.com/reference/android/media/CamcorderProfile.html#QUALITY_2160P">QUALITY_2160P</a>],
-     * if the profile is supported by the device and has
-     * <a href="https://developer.android.com/reference/android/media/CamcorderProfile.html#videoFrameRate">videoFrameRate</a>
-     * <code>x</code>, this list will always include (<code>x</code>,<code>x</code>).</p>
-     * </li>
-     * <li>
-     * <p>Also, a camera device must either not support any
-     * <a href="https://developer.android.com/reference/android/media/CamcorderProfile.html">CamcorderProfile</a>,
-     * or support at least one
-     * normal <a href="https://developer.android.com/reference/android/media/CamcorderProfile.html">CamcorderProfile</a>
-     * that has
-     * <a href="https://developer.android.com/reference/android/media/CamcorderProfile.html#videoFrameRate">videoFrameRate</a> <code>x</code> &gt;= 24.</p>
-     * </li>
-     * </ul>
-     * <p>For devices at the LIMITED level or above:</p>
-     * <ul>
-     * <li>For YUV_420_888 burst capture use case, this list will always include (<code>min</code>, <code>max</code>)
-     * and (<code>max</code>, <code>max</code>) where <code>min</code> &lt;= 15 and <code>max</code> = the maximum output frame rate of the
-     * maximum YUV_420_888 output size.</li>
-     * </ul>
-     */
-    ACAMERA_CONTROL_AE_AVAILABLE_TARGET_FPS_RANGES =            // int32[2*n]
-            ACAMERA_CONTROL_START + 20,
-    /**
-     * <p>Maximum and minimum exposure compensation values for
-     * ACAMERA_CONTROL_AE_EXPOSURE_COMPENSATION, in counts of ACAMERA_CONTROL_AE_COMPENSATION_STEP,
-     * that are supported by this camera device.</p>
-     *
-     * @see ACAMERA_CONTROL_AE_COMPENSATION_STEP
-     * @see ACAMERA_CONTROL_AE_EXPOSURE_COMPENSATION
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>None</p>
-     */
-    ACAMERA_CONTROL_AE_COMPENSATION_RANGE =                     // int32[2]
-            ACAMERA_CONTROL_START + 21,
-    /**
-     * <p>Smallest step by which the exposure compensation
-     * can be changed.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>This is the unit for ACAMERA_CONTROL_AE_EXPOSURE_COMPENSATION. For example, if this key has
-     * a value of <code>1/2</code>, then a setting of <code>-2</code> for ACAMERA_CONTROL_AE_EXPOSURE_COMPENSATION means
-     * that the target EV offset for the auto-exposure routine is -1 EV.</p>
-     * <p>One unit of EV compensation changes the brightness of the captured image by a factor
-     * of two. +1 EV doubles the image brightness, while -1 EV halves the image brightness.</p>
-     *
-     * @see ACAMERA_CONTROL_AE_EXPOSURE_COMPENSATION
-     */
-    ACAMERA_CONTROL_AE_COMPENSATION_STEP =                      // rational
-            ACAMERA_CONTROL_START + 22,
-    /**
-     * <p>List of auto-focus (AF) modes for ACAMERA_CONTROL_AF_MODE that are
-     * supported by this camera device.</p>
-     *
-     * @see ACAMERA_CONTROL_AF_MODE
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>Not all the auto-focus modes may be supported by a
-     * given camera device. This entry lists the valid modes for
-     * ACAMERA_CONTROL_AF_MODE for this camera device.</p>
-     * <p>All LIMITED and FULL mode camera devices will support OFF mode, and all
-     * camera devices with adjustable focuser units
-     * (<code>ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE &gt; 0</code>) will support AUTO mode.</p>
-     * <p>LEGACY devices will support OFF mode only if they support
-     * focusing to infinity (by also setting ACAMERA_LENS_FOCUS_DISTANCE to
-     * <code>0.0f</code>).</p>
-     *
-     * @see ACAMERA_CONTROL_AF_MODE
-     * @see ACAMERA_LENS_FOCUS_DISTANCE
-     * @see ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE
-     */
-    ACAMERA_CONTROL_AF_AVAILABLE_MODES =                        // byte[n]
-            ACAMERA_CONTROL_START + 23,
-    /**
-     * <p>List of color effects for ACAMERA_CONTROL_EFFECT_MODE that are supported by this camera
-     * device.</p>
-     *
-     * @see ACAMERA_CONTROL_EFFECT_MODE
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>This list contains the color effect modes that can be applied to
-     * images produced by the camera device.
-     * Implementations are not expected to be consistent across all devices.
-     * If no color effect modes are available for a device, this will only list
-     * OFF.</p>
-     * <p>A color effect will only be applied if
-     * ACAMERA_CONTROL_MODE != OFF.  OFF is always included in this list.</p>
-     * <p>This control has no effect on the operation of other control routines such
-     * as auto-exposure, white balance, or focus.</p>
-     *
-     * @see ACAMERA_CONTROL_MODE
-     */
-    ACAMERA_CONTROL_AVAILABLE_EFFECTS =                         // byte[n]
-            ACAMERA_CONTROL_START + 24,
-    /**
-     * <p>List of scene modes for ACAMERA_CONTROL_SCENE_MODE that are supported by this camera
-     * device.</p>
-     *
-     * @see ACAMERA_CONTROL_SCENE_MODE
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>This list contains scene modes that can be set for the camera device.
-     * Only scene modes that have been fully implemented for the
-     * camera device may be included here. Implementations are not expected
-     * to be consistent across all devices.</p>
-     * <p>If no scene modes are supported by the camera device, this
-     * will be set to DISABLED. Otherwise DISABLED will not be listed.</p>
-     * <p>FACE_PRIORITY is always listed if face detection is
-     * supported (i.e.<code>ACAMERA_STATISTICS_INFO_MAX_FACE_COUNT &gt;
-     * 0</code>).</p>
-     *
-     * @see ACAMERA_STATISTICS_INFO_MAX_FACE_COUNT
-     */
-    ACAMERA_CONTROL_AVAILABLE_SCENE_MODES =                     // byte[n]
-            ACAMERA_CONTROL_START + 25,
-    /**
-     * <p>List of video stabilization modes for ACAMERA_CONTROL_VIDEO_STABILIZATION_MODE
-     * that are supported by this camera device.</p>
-     *
-     * @see ACAMERA_CONTROL_VIDEO_STABILIZATION_MODE
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>OFF will always be listed.</p>
-     */
-    ACAMERA_CONTROL_AVAILABLE_VIDEO_STABILIZATION_MODES =       // byte[n]
-            ACAMERA_CONTROL_START + 26,
-    /**
-     * <p>List of auto-white-balance modes for ACAMERA_CONTROL_AWB_MODE that are supported by this
-     * camera device.</p>
-     *
-     * @see ACAMERA_CONTROL_AWB_MODE
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>Not all the auto-white-balance modes may be supported by a
-     * given camera device. This entry lists the valid modes for
-     * ACAMERA_CONTROL_AWB_MODE for this camera device.</p>
-     * <p>All camera devices will support ON mode.</p>
-     * <p>Camera devices that support the MANUAL_POST_PROCESSING capability will always support OFF
-     * mode, which enables application control of white balance, by using
-     * ACAMERA_COLOR_CORRECTION_TRANSFORM and ACAMERA_COLOR_CORRECTION_GAINS(ACAMERA_COLOR_CORRECTION_MODE must be set to TRANSFORM_MATRIX). This includes all FULL
-     * mode camera devices.</p>
-     *
-     * @see ACAMERA_COLOR_CORRECTION_GAINS
-     * @see ACAMERA_COLOR_CORRECTION_MODE
-     * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
-     * @see ACAMERA_CONTROL_AWB_MODE
-     */
-    ACAMERA_CONTROL_AWB_AVAILABLE_MODES =                       // byte[n]
-            ACAMERA_CONTROL_START + 27,
-    /**
-     * <p>List of the maximum number of regions that can be used for metering in
-     * auto-exposure (AE), auto-white balance (AWB), and auto-focus (AF);
-     * this corresponds to the the maximum number of elements in
-     * ACAMERA_CONTROL_AE_REGIONS, ACAMERA_CONTROL_AWB_REGIONS,
-     * and ACAMERA_CONTROL_AF_REGIONS.</p>
-     *
-     * @see ACAMERA_CONTROL_AE_REGIONS
-     * @see ACAMERA_CONTROL_AF_REGIONS
-     * @see ACAMERA_CONTROL_AWB_REGIONS
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>None</p>
-     */
-    ACAMERA_CONTROL_MAX_REGIONS =                               // int32[3]
-            ACAMERA_CONTROL_START + 28,
-    /**
-     * <p>Current state of the auto-exposure (AE) algorithm.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     * </ul>
-     *
-     * <p>Switching between or enabling AE modes (ACAMERA_CONTROL_AE_MODE) always
-     * resets the AE state to INACTIVE. Similarly, switching between ACAMERA_CONTROL_MODE,
-     * or ACAMERA_CONTROL_SCENE_MODE if <code>ACAMERA_CONTROL_MODE == USE_SCENE_MODE</code> resets all
-     * the algorithm states to INACTIVE.</p>
-     * <p>The camera device can do several state transitions between two results, if it is
-     * allowed by the state transition table. For example: INACTIVE may never actually be
-     * seen in a result.</p>
-     * <p>The state in the result is the state for this image (in sync with this image): if
-     * AE state becomes CONVERGED, then the image data associated with this result should
-     * be good to use.</p>
-     * <p>Below are state transition tables for different AE modes.</p>
-     * <p>State       | Transition Cause | New State | Notes
-     * :------------:|:----------------:|:---------:|:-----------------------:
-     * INACTIVE      |                  | INACTIVE  | Camera device auto exposure algorithm is disabled</p>
-     * <p>When ACAMERA_CONTROL_AE_MODE is AE_MODE_ON_*:</p>
-     * <p>State        | Transition Cause                             | New State      | Notes
-     * :-------------:|:--------------------------------------------:|:--------------:|:-----------------:
-     * INACTIVE       | Camera device initiates AE scan              | SEARCHING      | Values changing
-     * INACTIVE       | ACAMERA_CONTROL_AE_LOCK is ON                 | LOCKED         | Values locked
-     * SEARCHING      | Camera device finishes AE scan               | CONVERGED      | Good values, not changing
-     * SEARCHING      | Camera device finishes AE scan               | FLASH_REQUIRED | Converged but too dark w/o flash
-     * SEARCHING      | ACAMERA_CONTROL_AE_LOCK is ON                 | LOCKED         | Values locked
-     * CONVERGED      | Camera device initiates AE scan              | SEARCHING      | Values changing
-     * CONVERGED      | ACAMERA_CONTROL_AE_LOCK is ON                 | LOCKED         | Values locked
-     * FLASH_REQUIRED | Camera device initiates AE scan              | SEARCHING      | Values changing
-     * FLASH_REQUIRED | ACAMERA_CONTROL_AE_LOCK is ON                 | LOCKED         | Values locked
-     * LOCKED         | ACAMERA_CONTROL_AE_LOCK is OFF                | SEARCHING      | Values not good after unlock
-     * LOCKED         | ACAMERA_CONTROL_AE_LOCK is OFF                | CONVERGED      | Values good after unlock
-     * LOCKED         | ACAMERA_CONTROL_AE_LOCK is OFF                | FLASH_REQUIRED | Exposure good, but too dark
-     * PRECAPTURE     | Sequence done. ACAMERA_CONTROL_AE_LOCK is OFF | CONVERGED      | Ready for high-quality capture
-     * PRECAPTURE     | Sequence done. ACAMERA_CONTROL_AE_LOCK is ON  | LOCKED         | Ready for high-quality capture
-     * LOCKED         | aeLock is ON and aePrecaptureTrigger is START | LOCKED        | Precapture trigger is ignored when AE is already locked
-     * LOCKED         | aeLock is ON and aePrecaptureTrigger is CANCEL| LOCKED        | Precapture trigger is ignored when AE is already locked
-     * Any state (excluding LOCKED) | ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER is START | PRECAPTURE     | Start AE precapture metering sequence
-     * Any state (excluding LOCKED) | ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER is CANCEL| INACTIVE       | Currently active precapture metering sequence is canceled</p>
-     * <p>For the above table, the camera device may skip reporting any state changes that happen
-     * without application intervention (i.e. mode switch, trigger, locking). Any state that
-     * can be skipped in that manner is called a transient state.</p>
-     * <p>For example, for above AE modes (AE_MODE_ON_*), in addition to the state transitions
-     * listed in above table, it is also legal for the camera device to skip one or more
-     * transient states between two results. See below table for examples:</p>
-     * <p>State        | Transition Cause                                            | New State      | Notes
-     * :-------------:|:-----------------------------------------------------------:|:--------------:|:-----------------:
-     * INACTIVE       | Camera device finished AE scan                              | CONVERGED      | Values are already good, transient states are skipped by camera device.
-     * Any state (excluding LOCKED) | ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER is START, sequence done | FLASH_REQUIRED | Converged but too dark w/o flash after a precapture sequence, transient states are skipped by camera device.
-     * Any state (excluding LOCKED) | ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER is START, sequence done | CONVERGED      | Converged after a precapture sequence, transient states are skipped by camera device.
-     * Any state (excluding LOCKED) | ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER is CANCEL, converged    | FLASH_REQUIRED | Converged but too dark w/o flash after a precapture sequence is canceled, transient states are skipped by camera device.
-     * Any state (excluding LOCKED) | ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER is CANCEL, converged    | CONVERGED      | Converged after a precapture sequenceis canceled, transient states are skipped by camera device.
-     * CONVERGED      | Camera device finished AE scan                              | FLASH_REQUIRED | Converged but too dark w/o flash after a new scan, transient states are skipped by camera device.
-     * FLASH_REQUIRED | Camera device finished AE scan                              | CONVERGED      | Converged after a new scan, transient states are skipped by camera device.</p>
-     *
-     * @see ACAMERA_CONTROL_AE_LOCK
-     * @see ACAMERA_CONTROL_AE_MODE
-     * @see ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER
-     * @see ACAMERA_CONTROL_MODE
-     * @see ACAMERA_CONTROL_SCENE_MODE
-     */
-    ACAMERA_CONTROL_AE_STATE =                                  // byte (enum)
-            ACAMERA_CONTROL_START + 31,
-    /**
-     * <p>Current state of auto-focus (AF) algorithm.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     * </ul>
-     *
-     * <p>Switching between or enabling AF modes (ACAMERA_CONTROL_AF_MODE) always
-     * resets the AF state to INACTIVE. Similarly, switching between ACAMERA_CONTROL_MODE,
-     * or ACAMERA_CONTROL_SCENE_MODE if <code>ACAMERA_CONTROL_MODE == USE_SCENE_MODE</code> resets all
-     * the algorithm states to INACTIVE.</p>
-     * <p>The camera device can do several state transitions between two results, if it is
-     * allowed by the state transition table. For example: INACTIVE may never actually be
-     * seen in a result.</p>
-     * <p>The state in the result is the state for this image (in sync with this image): if
-     * AF state becomes FOCUSED, then the image data associated with this result should
-     * be sharp.</p>
-     * <p>Below are state transition tables for different AF modes.</p>
-     * <p>When ACAMERA_CONTROL_AF_MODE is AF_MODE_OFF or AF_MODE_EDOF:</p>
-     * <p>State       | Transition Cause | New State | Notes
-     * :------------:|:----------------:|:---------:|:-----------:
-     * INACTIVE      |                  | INACTIVE  | Never changes</p>
-     * <p>When ACAMERA_CONTROL_AF_MODE is AF_MODE_AUTO or AF_MODE_MACRO:</p>
-     * <p>State            | Transition Cause | New State          | Notes
-     * :-----------------:|:----------------:|:------------------:|:--------------:
-     * INACTIVE           | AF_TRIGGER       | ACTIVE_SCAN        | Start AF sweep, Lens now moving
-     * ACTIVE_SCAN        | AF sweep done    | FOCUSED_LOCKED     | Focused, Lens now locked
-     * ACTIVE_SCAN        | AF sweep done    | NOT_FOCUSED_LOCKED | Not focused, Lens now locked
-     * ACTIVE_SCAN        | AF_CANCEL        | INACTIVE           | Cancel/reset AF, Lens now locked
-     * FOCUSED_LOCKED     | AF_CANCEL        | INACTIVE           | Cancel/reset AF
-     * FOCUSED_LOCKED     | AF_TRIGGER       | ACTIVE_SCAN        | Start new sweep, Lens now moving
-     * NOT_FOCUSED_LOCKED | AF_CANCEL        | INACTIVE           | Cancel/reset AF
-     * NOT_FOCUSED_LOCKED | AF_TRIGGER       | ACTIVE_SCAN        | Start new sweep, Lens now moving
-     * Any state          | Mode change      | INACTIVE           |</p>
-     * <p>For the above table, the camera device may skip reporting any state changes that happen
-     * without application intervention (i.e. mode switch, trigger, locking). Any state that
-     * can be skipped in that manner is called a transient state.</p>
-     * <p>For example, for these AF modes (AF_MODE_AUTO and AF_MODE_MACRO), in addition to the
-     * state transitions listed in above table, it is also legal for the camera device to skip
-     * one or more transient states between two results. See below table for examples:</p>
-     * <p>State            | Transition Cause | New State          | Notes
-     * :-----------------:|:----------------:|:------------------:|:--------------:
-     * INACTIVE           | AF_TRIGGER       | FOCUSED_LOCKED     | Focus is already good or good after a scan, lens is now locked.
-     * INACTIVE           | AF_TRIGGER       | NOT_FOCUSED_LOCKED | Focus failed after a scan, lens is now locked.
-     * FOCUSED_LOCKED     | AF_TRIGGER       | FOCUSED_LOCKED     | Focus is already good or good after a scan, lens is now locked.
-     * NOT_FOCUSED_LOCKED | AF_TRIGGER       | FOCUSED_LOCKED     | Focus is good after a scan, lens is not locked.</p>
-     * <p>When ACAMERA_CONTROL_AF_MODE is AF_MODE_CONTINUOUS_VIDEO:</p>
-     * <p>State            | Transition Cause                    | New State          | Notes
-     * :-----------------:|:-----------------------------------:|:------------------:|:--------------:
-     * INACTIVE           | Camera device initiates new scan    | PASSIVE_SCAN       | Start AF scan, Lens now moving
-     * INACTIVE           | AF_TRIGGER                          | NOT_FOCUSED_LOCKED | AF state query, Lens now locked
-     * PASSIVE_SCAN       | Camera device completes current scan| PASSIVE_FOCUSED    | End AF scan, Lens now locked
-     * PASSIVE_SCAN       | Camera device fails current scan    | PASSIVE_UNFOCUSED  | End AF scan, Lens now locked
-     * PASSIVE_SCAN       | AF_TRIGGER                          | FOCUSED_LOCKED     | Immediate transition, if focus is good. Lens now locked
-     * PASSIVE_SCAN       | AF_TRIGGER                          | NOT_FOCUSED_LOCKED | Immediate transition, if focus is bad. Lens now locked
-     * PASSIVE_SCAN       | AF_CANCEL                           | INACTIVE           | Reset lens position, Lens now locked
-     * PASSIVE_FOCUSED    | Camera device initiates new scan    | PASSIVE_SCAN       | Start AF scan, Lens now moving
-     * PASSIVE_UNFOCUSED  | Camera device initiates new scan    | PASSIVE_SCAN       | Start AF scan, Lens now moving
-     * PASSIVE_FOCUSED    | AF_TRIGGER                          | FOCUSED_LOCKED     | Immediate transition, lens now locked
-     * PASSIVE_UNFOCUSED  | AF_TRIGGER                          | NOT_FOCUSED_LOCKED | Immediate transition, lens now locked
-     * FOCUSED_LOCKED     | AF_TRIGGER                          | FOCUSED_LOCKED     | No effect
-     * FOCUSED_LOCKED     | AF_CANCEL                           | INACTIVE           | Restart AF scan
-     * NOT_FOCUSED_LOCKED | AF_TRIGGER                          | NOT_FOCUSED_LOCKED | No effect
-     * NOT_FOCUSED_LOCKED | AF_CANCEL                           | INACTIVE           | Restart AF scan</p>
-     * <p>When ACAMERA_CONTROL_AF_MODE is AF_MODE_CONTINUOUS_PICTURE:</p>
-     * <p>State            | Transition Cause                     | New State          | Notes
-     * :-----------------:|:------------------------------------:|:------------------:|:--------------:
-     * INACTIVE           | Camera device initiates new scan     | PASSIVE_SCAN       | Start AF scan, Lens now moving
-     * INACTIVE           | AF_TRIGGER                           | NOT_FOCUSED_LOCKED | AF state query, Lens now locked
-     * PASSIVE_SCAN       | Camera device completes current scan | PASSIVE_FOCUSED    | End AF scan, Lens now locked
-     * PASSIVE_SCAN       | Camera device fails current scan     | PASSIVE_UNFOCUSED  | End AF scan, Lens now locked
-     * PASSIVE_SCAN       | AF_TRIGGER                           | FOCUSED_LOCKED     | Eventual transition once the focus is good. Lens now locked
-     * PASSIVE_SCAN       | AF_TRIGGER                           | NOT_FOCUSED_LOCKED | Eventual transition if cannot find focus. Lens now locked
-     * PASSIVE_SCAN       | AF_CANCEL                            | INACTIVE           | Reset lens position, Lens now locked
-     * PASSIVE_FOCUSED    | Camera device initiates new scan     | PASSIVE_SCAN       | Start AF scan, Lens now moving
-     * PASSIVE_UNFOCUSED  | Camera device initiates new scan     | PASSIVE_SCAN       | Start AF scan, Lens now moving
-     * PASSIVE_FOCUSED    | AF_TRIGGER                           | FOCUSED_LOCKED     | Immediate trans. Lens now locked
-     * PASSIVE_UNFOCUSED  | AF_TRIGGER                           | NOT_FOCUSED_LOCKED | Immediate trans. Lens now locked
-     * FOCUSED_LOCKED     | AF_TRIGGER                           | FOCUSED_LOCKED     | No effect
-     * FOCUSED_LOCKED     | AF_CANCEL                            | INACTIVE           | Restart AF scan
-     * NOT_FOCUSED_LOCKED | AF_TRIGGER                           | NOT_FOCUSED_LOCKED | No effect
-     * NOT_FOCUSED_LOCKED | AF_CANCEL                            | INACTIVE           | Restart AF scan</p>
-     * <p>When switch between AF_MODE_CONTINUOUS_* (CAF modes) and AF_MODE_AUTO/AF_MODE_MACRO
-     * (AUTO modes), the initial INACTIVE or PASSIVE_SCAN states may be skipped by the
-     * camera device. When a trigger is included in a mode switch request, the trigger
-     * will be evaluated in the context of the new mode in the request.
-     * See below table for examples:</p>
-     * <p>State      | Transition Cause                       | New State                                | Notes
-     * :-----------:|:--------------------------------------:|:----------------------------------------:|:--------------:
-     * any state    | CAF--&gt;AUTO mode switch                 | INACTIVE                                 | Mode switch without trigger, initial state must be INACTIVE
-     * any state    | CAF--&gt;AUTO mode switch with AF_TRIGGER | trigger-reachable states from INACTIVE   | Mode switch with trigger, INACTIVE is skipped
-     * any state    | AUTO--&gt;CAF mode switch                 | passively reachable states from INACTIVE | Mode switch without trigger, passive transient state is skipped</p>
-     *
-     * @see ACAMERA_CONTROL_AF_MODE
-     * @see ACAMERA_CONTROL_MODE
-     * @see ACAMERA_CONTROL_SCENE_MODE
-     */
-    ACAMERA_CONTROL_AF_STATE =                                  // byte (enum)
-            ACAMERA_CONTROL_START + 32,
-    /**
-     * <p>Current state of auto-white balance (AWB) algorithm.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     * </ul>
-     *
-     * <p>Switching between or enabling AWB modes (ACAMERA_CONTROL_AWB_MODE) always
-     * resets the AWB state to INACTIVE. Similarly, switching between ACAMERA_CONTROL_MODE,
-     * or ACAMERA_CONTROL_SCENE_MODE if <code>ACAMERA_CONTROL_MODE == USE_SCENE_MODE</code> resets all
-     * the algorithm states to INACTIVE.</p>
-     * <p>The camera device can do several state transitions between two results, if it is
-     * allowed by the state transition table. So INACTIVE may never actually be seen in
-     * a result.</p>
-     * <p>The state in the result is the state for this image (in sync with this image): if
-     * AWB state becomes CONVERGED, then the image data associated with this result should
-     * be good to use.</p>
-     * <p>Below are state transition tables for different AWB modes.</p>
-     * <p>When <code>ACAMERA_CONTROL_AWB_MODE != AWB_MODE_AUTO</code>:</p>
-     * <p>State       | Transition Cause | New State | Notes
-     * :------------:|:----------------:|:---------:|:-----------------------:
-     * INACTIVE      |                  |INACTIVE   |Camera device auto white balance algorithm is disabled</p>
-     * <p>When ACAMERA_CONTROL_AWB_MODE is AWB_MODE_AUTO:</p>
-     * <p>State        | Transition Cause                 | New State     | Notes
-     * :-------------:|:--------------------------------:|:-------------:|:-----------------:
-     * INACTIVE       | Camera device initiates AWB scan | SEARCHING     | Values changing
-     * INACTIVE       | ACAMERA_CONTROL_AWB_LOCK is ON    | LOCKED        | Values locked
-     * SEARCHING      | Camera device finishes AWB scan  | CONVERGED     | Good values, not changing
-     * SEARCHING      | ACAMERA_CONTROL_AWB_LOCK is ON    | LOCKED        | Values locked
-     * CONVERGED      | Camera device initiates AWB scan | SEARCHING     | Values changing
-     * CONVERGED      | ACAMERA_CONTROL_AWB_LOCK is ON    | LOCKED        | Values locked
-     * LOCKED         | ACAMERA_CONTROL_AWB_LOCK is OFF   | SEARCHING     | Values not good after unlock</p>
-     * <p>For the above table, the camera device may skip reporting any state changes that happen
-     * without application intervention (i.e. mode switch, trigger, locking). Any state that
-     * can be skipped in that manner is called a transient state.</p>
-     * <p>For example, for this AWB mode (AWB_MODE_AUTO), in addition to the state transitions
-     * listed in above table, it is also legal for the camera device to skip one or more
-     * transient states between two results. See below table for examples:</p>
-     * <p>State        | Transition Cause                 | New State     | Notes
-     * :-------------:|:--------------------------------:|:-------------:|:-----------------:
-     * INACTIVE       | Camera device finished AWB scan  | CONVERGED     | Values are already good, transient states are skipped by camera device.
-     * LOCKED         | ACAMERA_CONTROL_AWB_LOCK is OFF   | CONVERGED     | Values good after unlock, transient states are skipped by camera device.</p>
-     *
-     * @see ACAMERA_CONTROL_AWB_LOCK
-     * @see ACAMERA_CONTROL_AWB_MODE
-     * @see ACAMERA_CONTROL_MODE
-     * @see ACAMERA_CONTROL_SCENE_MODE
-     */
-    ACAMERA_CONTROL_AWB_STATE =                                 // byte (enum)
-            ACAMERA_CONTROL_START + 34,
-    /**
-     * <p>Whether the camera device supports ACAMERA_CONTROL_AE_LOCK</p>
-     *
-     * @see ACAMERA_CONTROL_AE_LOCK
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>Devices with MANUAL_SENSOR capability or BURST_CAPTURE capability will always
-     * list <code>true</code>. This includes FULL devices.</p>
-     */
-    ACAMERA_CONTROL_AE_LOCK_AVAILABLE =                         // byte (enum)
-            ACAMERA_CONTROL_START + 36,
-    /**
-     * <p>Whether the camera device supports ACAMERA_CONTROL_AWB_LOCK</p>
-     *
-     * @see ACAMERA_CONTROL_AWB_LOCK
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>Devices with MANUAL_POST_PROCESSING capability or BURST_CAPTURE capability will
-     * always list <code>true</code>. This includes FULL devices.</p>
-     */
-    ACAMERA_CONTROL_AWB_LOCK_AVAILABLE =                        // byte (enum)
-            ACAMERA_CONTROL_START + 37,
-    /**
-     * <p>List of control modes for ACAMERA_CONTROL_MODE that are supported by this camera
-     * device.</p>
-     *
-     * @see ACAMERA_CONTROL_MODE
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>This list contains control modes that can be set for the camera device.
-     * LEGACY mode devices will always support AUTO mode. LIMITED and FULL
-     * devices will always support OFF, AUTO modes.</p>
-     */
-    ACAMERA_CONTROL_AVAILABLE_MODES =                           // byte[n]
-            ACAMERA_CONTROL_START + 38,
-    /**
-     * <p>Range of boosts for ACAMERA_CONTROL_POST_RAW_SENSITIVITY_BOOST supported
-     * by this camera device.</p>
-     *
-     * @see ACAMERA_CONTROL_POST_RAW_SENSITIVITY_BOOST
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>Devices support post RAW sensitivity boost  will advertise
-     * ACAMERA_CONTROL_POST_RAW_SENSITIVITY_BOOST key for controling
-     * post RAW sensitivity boost.</p>
-     * <p>This key will be <code>null</code> for devices that do not support any RAW format
-     * outputs. For devices that do support RAW format outputs, this key will always
-     * present, and if a device does not support post RAW sensitivity boost, it will
-     * list <code>(100, 100)</code> in this key.</p>
-     *
-     * @see ACAMERA_CONTROL_POST_RAW_SENSITIVITY_BOOST
-     */
-    ACAMERA_CONTROL_POST_RAW_SENSITIVITY_BOOST_RANGE =          // int32[2]
-            ACAMERA_CONTROL_START + 39,
-    /**
-     * <p>The amount of additional sensitivity boost applied to output images
-     * after RAW sensor data is captured.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>Some camera devices support additional digital sensitivity boosting in the
-     * camera processing pipeline after sensor RAW image is captured.
-     * Such a boost will be applied to YUV/JPEG format output images but will not
-     * have effect on RAW output formats like RAW_SENSOR, RAW10, RAW12 or RAW_OPAQUE.</p>
-     * <p>This key will be <code>null</code> for devices that do not support any RAW format
-     * outputs. For devices that do support RAW format outputs, this key will always
-     * present, and if a device does not support post RAW sensitivity boost, it will
-     * list <code>100</code> in this key.</p>
-     * <p>If the camera device cannot apply the exact boost requested, it will reduce the
-     * boost to the nearest supported value.
-     * The final boost value used will be available in the output capture result.</p>
-     * <p>For devices that support post RAW sensitivity boost, the YUV/JPEG output images
-     * of such device will have the total sensitivity of
-     * <code>ACAMERA_SENSOR_SENSITIVITY * ACAMERA_CONTROL_POST_RAW_SENSITIVITY_BOOST / 100</code>
-     * The sensitivity of RAW format images will always be <code>ACAMERA_SENSOR_SENSITIVITY</code></p>
-     * <p>This control is only effective if ACAMERA_CONTROL_AE_MODE or ACAMERA_CONTROL_MODE is set to
-     * OFF; otherwise the auto-exposure algorithm will override this value.</p>
-     *
-     * @see ACAMERA_CONTROL_AE_MODE
-     * @see ACAMERA_CONTROL_MODE
-     * @see ACAMERA_CONTROL_POST_RAW_SENSITIVITY_BOOST
-     * @see ACAMERA_SENSOR_SENSITIVITY
-     */
-    ACAMERA_CONTROL_POST_RAW_SENSITIVITY_BOOST =                // int32
-            ACAMERA_CONTROL_START + 40,
-    ACAMERA_CONTROL_END,
-
-    /**
-     * <p>Operation mode for edge
-     * enhancement.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>Edge enhancement improves sharpness and details in the captured image. OFF means
-     * no enhancement will be applied by the camera device.</p>
-     * <p>FAST/HIGH_QUALITY both mean camera device determined enhancement
-     * will be applied. HIGH_QUALITY mode indicates that the
-     * camera device will use the highest-quality enhancement algorithms,
-     * even if it slows down capture rate. FAST means the camera device will
-     * not slow down capture rate when applying edge enhancement. FAST may be the same as OFF if
-     * edge enhancement will slow down capture rate. Every output stream will have a similar
-     * amount of enhancement applied.</p>
-     * <p>ZERO_SHUTTER_LAG is meant to be used by applications that maintain a continuous circular
-     * buffer of high-resolution images during preview and reprocess image(s) from that buffer
-     * into a final capture when triggered by the user. In this mode, the camera device applies
-     * edge enhancement to low-resolution streams (below maximum recording resolution) to
-     * maximize preview quality, but does not apply edge enhancement to high-resolution streams,
-     * since those will be reprocessed later if necessary.</p>
-     * <p>For YUV_REPROCESSING, these FAST/HIGH_QUALITY modes both mean that the camera
-     * device will apply FAST/HIGH_QUALITY YUV-domain edge enhancement, respectively.
-     * The camera device may adjust its internal edge enhancement parameters for best
-     * image quality based on the android.reprocess.effectiveExposureFactor, if it is set.</p>
-     */
-    ACAMERA_EDGE_MODE =                                         // byte (enum)
-            ACAMERA_EDGE_START,
-    /**
-     * <p>List of edge enhancement modes for ACAMERA_EDGE_MODE that are supported by this camera
-     * device.</p>
-     *
-     * @see ACAMERA_EDGE_MODE
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>Full-capability camera devices must always support OFF; camera devices that support
-     * YUV_REPROCESSING or PRIVATE_REPROCESSING will list ZERO_SHUTTER_LAG; all devices will
-     * list FAST.</p>
-     */
-    ACAMERA_EDGE_AVAILABLE_EDGE_MODES =                         // byte[n]
-            ACAMERA_EDGE_START + 2,
-    ACAMERA_EDGE_END,
-
-    /**
-     * <p>The desired mode for for the camera device's flash control.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>This control is only effective when flash unit is available
-     * (<code>ACAMERA_FLASH_INFO_AVAILABLE == true</code>).</p>
-     * <p>When this control is used, the ACAMERA_CONTROL_AE_MODE must be set to ON or OFF.
-     * Otherwise, the camera device auto-exposure related flash control (ON_AUTO_FLASH,
-     * ON_ALWAYS_FLASH, or ON_AUTO_FLASH_REDEYE) will override this control.</p>
-     * <p>When set to OFF, the camera device will not fire flash for this capture.</p>
-     * <p>When set to SINGLE, the camera device will fire flash regardless of the camera
-     * device's auto-exposure routine's result. When used in still capture case, this
-     * control should be used along with auto-exposure (AE) precapture metering sequence
-     * (ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER), otherwise, the image may be incorrectly exposed.</p>
-     * <p>When set to TORCH, the flash will be on continuously. This mode can be used
-     * for use cases such as preview, auto-focus assist, still capture, or video recording.</p>
-     * <p>The flash status will be reported by ACAMERA_FLASH_STATE in the capture result metadata.</p>
-     *
-     * @see ACAMERA_CONTROL_AE_MODE
-     * @see ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER
-     * @see ACAMERA_FLASH_INFO_AVAILABLE
-     * @see ACAMERA_FLASH_STATE
-     */
-    ACAMERA_FLASH_MODE =                                        // byte (enum)
-            ACAMERA_FLASH_START + 2,
-    /**
-     * <p>Current state of the flash
-     * unit.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     * </ul>
-     *
-     * <p>When the camera device doesn't have flash unit
-     * (i.e. <code>ACAMERA_FLASH_INFO_AVAILABLE == false</code>), this state will always be UNAVAILABLE.
-     * Other states indicate the current flash status.</p>
-     * <p>In certain conditions, this will be available on LEGACY devices:</p>
-     * <ul>
-     * <li>Flash-less cameras always return UNAVAILABLE.</li>
-     * <li>Using ACAMERA_CONTROL_AE_MODE <code>==</code> ON_ALWAYS_FLASH
-     *    will always return FIRED.</li>
-     * <li>Using ACAMERA_FLASH_MODE <code>==</code> TORCH
-     *    will always return FIRED.</li>
-     * </ul>
-     * <p>In all other conditions the state will not be available on
-     * LEGACY devices (i.e. it will be <code>null</code>).</p>
-     *
-     * @see ACAMERA_CONTROL_AE_MODE
-     * @see ACAMERA_FLASH_INFO_AVAILABLE
-     * @see ACAMERA_FLASH_MODE
-     */
-    ACAMERA_FLASH_STATE =                                       // byte (enum)
-            ACAMERA_FLASH_START + 5,
-    ACAMERA_FLASH_END,
-
-    /**
-     * <p>Whether this camera device has a
-     * flash unit.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>Will be <code>false</code> if no flash is available.</p>
-     * <p>If there is no flash unit, none of the flash controls do
-     * anything.</p>
-     */
-    ACAMERA_FLASH_INFO_AVAILABLE =                              // byte (enum)
-            ACAMERA_FLASH_INFO_START,
-    ACAMERA_FLASH_INFO_END,
-
-    /**
-     * <p>Operational mode for hot pixel correction.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>Hotpixel correction interpolates out, or otherwise removes, pixels
-     * that do not accurately measure the incoming light (i.e. pixels that
-     * are stuck at an arbitrary value or are oversensitive).</p>
-     */
-    ACAMERA_HOT_PIXEL_MODE =                                    // byte (enum)
-            ACAMERA_HOT_PIXEL_START,
-    /**
-     * <p>List of hot pixel correction modes for ACAMERA_HOT_PIXEL_MODE that are supported by this
-     * camera device.</p>
-     *
-     * @see ACAMERA_HOT_PIXEL_MODE
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>FULL mode camera devices will always support FAST.</p>
-     */
-    ACAMERA_HOT_PIXEL_AVAILABLE_HOT_PIXEL_MODES =               // byte[n]
-            ACAMERA_HOT_PIXEL_START + 1,
-    ACAMERA_HOT_PIXEL_END,
-
-    /**
-     * <p>GPS coordinates to include in output JPEG
-     * EXIF.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>None</p>
-     */
-    ACAMERA_JPEG_GPS_COORDINATES =                              // double[3]
-            ACAMERA_JPEG_START,
-    /**
-     * <p>32 characters describing GPS algorithm to
-     * include in EXIF.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>None</p>
-     */
-    ACAMERA_JPEG_GPS_PROCESSING_METHOD =                        // byte
-            ACAMERA_JPEG_START + 1,
-    /**
-     * <p>Time GPS fix was made to include in
-     * EXIF.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>None</p>
-     */
-    ACAMERA_JPEG_GPS_TIMESTAMP =                                // int64
-            ACAMERA_JPEG_START + 2,
-    /**
-     * <p>The orientation for a JPEG image.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>The clockwise rotation angle in degrees, relative to the orientation
-     * to the camera, that the JPEG picture needs to be rotated by, to be viewed
-     * upright.</p>
-     * <p>Camera devices may either encode this value into the JPEG EXIF header, or
-     * rotate the image data to match this orientation. When the image data is rotated,
-     * the thumbnail data will also be rotated.</p>
-     * <p>Note that this orientation is relative to the orientation of the camera sensor, given
-     * by ACAMERA_SENSOR_ORIENTATION.</p>
-     * <p>To translate from the device orientation given by the Android sensor APIs, the following
-     * sample code may be used:</p>
-     * <pre><code>private int getJpegOrientation(CameraCharacteristics c, int deviceOrientation) {
-     *     if (deviceOrientation == android.view.OrientationEventListener.ORIENTATION_UNKNOWN) return 0;
-     *     int sensorOrientation = c.get(CameraCharacteristics.SENSOR_ORIENTATION);
-     *
-     *     // Round device orientation to a multiple of 90
-     *     deviceOrientation = (deviceOrientation + 45) / 90 * 90;
-     *
-     *     // Reverse device orientation for front-facing cameras
-     *     boolean facingFront = c.get(CameraCharacteristics.LENS_FACING) == CameraCharacteristics.LENS_FACING_FRONT;
-     *     if (facingFront) deviceOrientation = -deviceOrientation;
-     *
-     *     // Calculate desired JPEG orientation relative to camera orientation to make
-     *     // the image upright relative to the device orientation
-     *     int jpegOrientation = (sensorOrientation + deviceOrientation + 360) % 360;
-     *
-     *     return jpegOrientation;
-     * }
-     * </code></pre>
-     *
-     * @see ACAMERA_SENSOR_ORIENTATION
-     */
-    ACAMERA_JPEG_ORIENTATION =                                  // int32
-            ACAMERA_JPEG_START + 3,
-    /**
-     * <p>Compression quality of the final JPEG
-     * image.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>85-95 is typical usage range.</p>
-     */
-    ACAMERA_JPEG_QUALITY =                                      // byte
-            ACAMERA_JPEG_START + 4,
-    /**
-     * <p>Compression quality of JPEG
-     * thumbnail.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>None</p>
-     */
-    ACAMERA_JPEG_THUMBNAIL_QUALITY =                            // byte
-            ACAMERA_JPEG_START + 5,
-    /**
-     * <p>Resolution of embedded JPEG thumbnail.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>When set to (0, 0) value, the JPEG EXIF will not contain thumbnail,
-     * but the captured JPEG will still be a valid image.</p>
-     * <p>For best results, when issuing a request for a JPEG image, the thumbnail size selected
-     * should have the same aspect ratio as the main JPEG output.</p>
-     * <p>If the thumbnail image aspect ratio differs from the JPEG primary image aspect
-     * ratio, the camera device creates the thumbnail by cropping it from the primary image.
-     * For example, if the primary image has 4:3 aspect ratio, the thumbnail image has
-     * 16:9 aspect ratio, the primary image will be cropped vertically (letterbox) to
-     * generate the thumbnail image. The thumbnail image will always have a smaller Field
-     * Of View (FOV) than the primary image when aspect ratios differ.</p>
-     * <p>When an ACAMERA_JPEG_ORIENTATION of non-zero degree is requested,
-     * the camera device will handle thumbnail rotation in one of the following ways:</p>
-     * <ul>
-     * <li>Set the
-     *   <a href="https://developer.android.com/reference/android/media/ExifInterface.html#TAG_ORIENTATION">EXIF orientation flag</a>
-     *   and keep jpeg and thumbnail image data unrotated.</li>
-     * <li>Rotate the jpeg and thumbnail image data and not set
-     *   <a href="https://developer.android.com/reference/android/media/ExifInterface.html#TAG_ORIENTATION">EXIF orientation flag</a>.
-     *   In this case, LIMITED or FULL hardware level devices will report rotated thumnail size
-     *   in capture result, so the width and height will be interchanged if 90 or 270 degree
-     *   orientation is requested. LEGACY device will always report unrotated thumbnail size.</li>
-     * </ul>
-     *
-     * @see ACAMERA_JPEG_ORIENTATION
-     */
-    ACAMERA_JPEG_THUMBNAIL_SIZE =                               // int32[2]
-            ACAMERA_JPEG_START + 6,
-    /**
-     * <p>List of JPEG thumbnail sizes for ACAMERA_JPEG_THUMBNAIL_SIZE supported by this
-     * camera device.</p>
-     *
-     * @see ACAMERA_JPEG_THUMBNAIL_SIZE
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>This list will include at least one non-zero resolution, plus <code>(0,0)</code> for indicating no
-     * thumbnail should be generated.</p>
-     * <p>Below condiditions will be satisfied for this size list:</p>
-     * <ul>
-     * <li>The sizes will be sorted by increasing pixel area (width x height).
-     * If several resolutions have the same area, they will be sorted by increasing width.</li>
-     * <li>The aspect ratio of the largest thumbnail size will be same as the
-     * aspect ratio of largest JPEG output size in ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS.
-     * The largest size is defined as the size that has the largest pixel area
-     * in a given size list.</li>
-     * <li>Each output JPEG size in ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS will have at least
-     * one corresponding size that has the same aspect ratio in availableThumbnailSizes,
-     * and vice versa.</li>
-     * <li>All non-<code>(0, 0)</code> sizes will have non-zero widths and heights.</li>
-     * </ul>
-     *
-     * @see ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS
-     */
-    ACAMERA_JPEG_AVAILABLE_THUMBNAIL_SIZES =                    // int32[2*n]
-            ACAMERA_JPEG_START + 7,
-    ACAMERA_JPEG_END,
-
-    /**
-     * <p>The desired lens aperture size, as a ratio of lens focal length to the
-     * effective aperture diameter.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>Setting this value is only supported on the camera devices that have a variable
-     * aperture lens.</p>
-     * <p>When this is supported and ACAMERA_CONTROL_AE_MODE is OFF,
-     * this can be set along with ACAMERA_SENSOR_EXPOSURE_TIME,
-     * ACAMERA_SENSOR_SENSITIVITY, and ACAMERA_SENSOR_FRAME_DURATION
-     * to achieve manual exposure control.</p>
-     * <p>The requested aperture value may take several frames to reach the
-     * requested value; the camera device will report the current (intermediate)
-     * aperture size in capture result metadata while the aperture is changing.
-     * While the aperture is still changing, ACAMERA_LENS_STATE will be set to MOVING.</p>
-     * <p>When this is supported and ACAMERA_CONTROL_AE_MODE is one of
-     * the ON modes, this will be overridden by the camera device
-     * auto-exposure algorithm, the overridden values are then provided
-     * back to the user in the corresponding result.</p>
-     *
-     * @see ACAMERA_CONTROL_AE_MODE
-     * @see ACAMERA_LENS_STATE
-     * @see ACAMERA_SENSOR_EXPOSURE_TIME
-     * @see ACAMERA_SENSOR_FRAME_DURATION
-     * @see ACAMERA_SENSOR_SENSITIVITY
-     */
-    ACAMERA_LENS_APERTURE =                                     // float
-            ACAMERA_LENS_START,
-    /**
-     * <p>The desired setting for the lens neutral density filter(s).</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>This control will not be supported on most camera devices.</p>
-     * <p>Lens filters are typically used to lower the amount of light the
-     * sensor is exposed to (measured in steps of EV). As used here, an EV
-     * step is the standard logarithmic representation, which are
-     * non-negative, and inversely proportional to the amount of light
-     * hitting the sensor.  For example, setting this to 0 would result
-     * in no reduction of the incoming light, and setting this to 2 would
-     * mean that the filter is set to reduce incoming light by two stops
-     * (allowing 1/4 of the prior amount of light to the sensor).</p>
-     * <p>It may take several frames before the lens filter density changes
-     * to the requested value. While the filter density is still changing,
-     * ACAMERA_LENS_STATE will be set to MOVING.</p>
-     *
-     * @see ACAMERA_LENS_STATE
-     */
-    ACAMERA_LENS_FILTER_DENSITY =                               // float
-            ACAMERA_LENS_START + 1,
-    /**
-     * <p>The desired lens focal length; used for optical zoom.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>This setting controls the physical focal length of the camera
-     * device's lens. Changing the focal length changes the field of
-     * view of the camera device, and is usually used for optical zoom.</p>
-     * <p>Like ACAMERA_LENS_FOCUS_DISTANCE and ACAMERA_LENS_APERTURE, this
-     * setting won't be applied instantaneously, and it may take several
-     * frames before the lens can change to the requested focal length.
-     * While the focal length is still changing, ACAMERA_LENS_STATE will
-     * be set to MOVING.</p>
-     * <p>Optical zoom will not be supported on most devices.</p>
-     *
-     * @see ACAMERA_LENS_APERTURE
-     * @see ACAMERA_LENS_FOCUS_DISTANCE
-     * @see ACAMERA_LENS_STATE
-     */
-    ACAMERA_LENS_FOCAL_LENGTH =                                 // float
-            ACAMERA_LENS_START + 2,
-    /**
-     * <p>Desired distance to plane of sharpest focus,
-     * measured from frontmost surface of the lens.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>Should be zero for fixed-focus cameras</p>
-     */
-    ACAMERA_LENS_FOCUS_DISTANCE =                               // float
-            ACAMERA_LENS_START + 3,
-    /**
-     * <p>Sets whether the camera device uses optical image stabilization (OIS)
-     * when capturing images.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>OIS is used to compensate for motion blur due to small
-     * movements of the camera during capture. Unlike digital image
-     * stabilization (ACAMERA_CONTROL_VIDEO_STABILIZATION_MODE), OIS
-     * makes use of mechanical elements to stabilize the camera
-     * sensor, and thus allows for longer exposure times before
-     * camera shake becomes apparent.</p>
-     * <p>Switching between different optical stabilization modes may take several
-     * frames to initialize, the camera device will report the current mode in
-     * capture result metadata. For example, When "ON" mode is requested, the
-     * optical stabilization modes in the first several capture results may still
-     * be "OFF", and it will become "ON" when the initialization is done.</p>
-     * <p>If a camera device supports both OIS and digital image stabilization
-     * (ACAMERA_CONTROL_VIDEO_STABILIZATION_MODE), turning both modes on may produce undesirable
-     * interaction, so it is recommended not to enable both at the same time.</p>
-     * <p>Not all devices will support OIS; see
-     * ACAMERA_LENS_INFO_AVAILABLE_OPTICAL_STABILIZATION for
-     * available controls.</p>
-     *
-     * @see ACAMERA_CONTROL_VIDEO_STABILIZATION_MODE
-     * @see ACAMERA_LENS_INFO_AVAILABLE_OPTICAL_STABILIZATION
-     */
-    ACAMERA_LENS_OPTICAL_STABILIZATION_MODE =                   // byte (enum)
-            ACAMERA_LENS_START + 4,
-    /**
-     * <p>Direction the camera faces relative to
-     * device screen.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>None</p>
-     */
-    ACAMERA_LENS_FACING =                                       // byte (enum)
-            ACAMERA_LENS_START + 5,
-    /**
-     * <p>The orientation of the camera relative to the sensor
-     * coordinate system.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     * </ul>
-     *
-     * <p>The four coefficients that describe the quaternion
-     * rotation from the Android sensor coordinate system to a
-     * camera-aligned coordinate system where the X-axis is
-     * aligned with the long side of the image sensor, the Y-axis
-     * is aligned with the short side of the image sensor, and
-     * the Z-axis is aligned with the optical axis of the sensor.</p>
-     * <p>To convert from the quaternion coefficients <code>(x,y,z,w)</code>
-     * to the axis of rotation <code>(a_x, a_y, a_z)</code> and rotation
-     * amount <code>theta</code>, the following formulas can be used:</p>
-     * <pre><code> theta = 2 * acos(w)
-     * a_x = x / sin(theta/2)
-     * a_y = y / sin(theta/2)
-     * a_z = z / sin(theta/2)
-     * </code></pre>
-     * <p>To create a 3x3 rotation matrix that applies the rotation
-     * defined by this quaternion, the following matrix can be
-     * used:</p>
-     * <pre><code>R = [ 1 - 2y^2 - 2z^2,       2xy - 2zw,       2xz + 2yw,
-     *            2xy + 2zw, 1 - 2x^2 - 2z^2,       2yz - 2xw,
-     *            2xz - 2yw,       2yz + 2xw, 1 - 2x^2 - 2y^2 ]
-     * </code></pre>
-     * <p>This matrix can then be used to apply the rotation to a
-     *  column vector point with</p>
-     * <p><code>p' = Rp</code></p>
-     * <p>where <code>p</code> is in the device sensor coordinate system, and
-     *  <code>p'</code> is in the camera-oriented coordinate system.</p>
-     */
-    ACAMERA_LENS_POSE_ROTATION =                                // float[4]
-            ACAMERA_LENS_START + 6,
-    /**
-     * <p>Position of the camera optical center.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     * </ul>
-     *
-     * <p>The position of the camera device's lens optical center,
-     * as a three-dimensional vector <code>(x,y,z)</code>, relative to the
-     * optical center of the largest camera device facing in the
-     * same direction as this camera, in the
-     * <a href="https://developer.android.com/reference/android/hardware/SensorEvent.html">Android sensor coordinate axes</a>.
-     * Note that only the axis definitions are shared with
-     * the sensor coordinate system, but not the origin.</p>
-     * <p>If this device is the largest or only camera device with a
-     * given facing, then this position will be <code>(0, 0, 0)</code>; a
-     * camera device with a lens optical center located 3 cm from
-     * the main sensor along the +X axis (to the right from the
-     * user's perspective) will report <code>(0.03, 0, 0)</code>.</p>
-     * <p>To transform a pixel coordinates between two cameras
-     * facing the same direction, first the source camera
-     * ACAMERA_LENS_RADIAL_DISTORTION must be corrected for.  Then
-     * the source camera ACAMERA_LENS_INTRINSIC_CALIBRATION needs
-     * to be applied, followed by the ACAMERA_LENS_POSE_ROTATION
-     * of the source camera, the translation of the source camera
-     * relative to the destination camera, the
-     * ACAMERA_LENS_POSE_ROTATION of the destination camera, and
-     * finally the inverse of ACAMERA_LENS_INTRINSIC_CALIBRATION
-     * of the destination camera. This obtains a
-     * radial-distortion-free coordinate in the destination
-     * camera pixel coordinates.</p>
-     * <p>To compare this against a real image from the destination
-     * camera, the destination camera image then needs to be
-     * corrected for radial distortion before comparison or
-     * sampling.</p>
-     *
-     * @see ACAMERA_LENS_INTRINSIC_CALIBRATION
-     * @see ACAMERA_LENS_POSE_ROTATION
-     * @see ACAMERA_LENS_RADIAL_DISTORTION
-     */
-    ACAMERA_LENS_POSE_TRANSLATION =                             // float[3]
-            ACAMERA_LENS_START + 7,
-    /**
-     * <p>The range of scene distances that are in
-     * sharp focus (depth of field).</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     * </ul>
-     *
-     * <p>If variable focus not supported, can still report
-     * fixed depth of field range</p>
-     */
-    ACAMERA_LENS_FOCUS_RANGE =                                  // float[2]
-            ACAMERA_LENS_START + 8,
-    /**
-     * <p>Current lens status.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     * </ul>
-     *
-     * <p>For lens parameters ACAMERA_LENS_FOCAL_LENGTH, ACAMERA_LENS_FOCUS_DISTANCE,
-     * ACAMERA_LENS_FILTER_DENSITY and ACAMERA_LENS_APERTURE, when changes are requested,
-     * they may take several frames to reach the requested values. This state indicates
-     * the current status of the lens parameters.</p>
-     * <p>When the state is STATIONARY, the lens parameters are not changing. This could be
-     * either because the parameters are all fixed, or because the lens has had enough
-     * time to reach the most recently-requested values.
-     * If all these lens parameters are not changable for a camera device, as listed below:</p>
-     * <ul>
-     * <li>Fixed focus (<code>ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE == 0</code>), which means
-     * ACAMERA_LENS_FOCUS_DISTANCE parameter will always be 0.</li>
-     * <li>Fixed focal length (ACAMERA_LENS_INFO_AVAILABLE_FOCAL_LENGTHS contains single value),
-     * which means the optical zoom is not supported.</li>
-     * <li>No ND filter (ACAMERA_LENS_INFO_AVAILABLE_FILTER_DENSITIES contains only 0).</li>
-     * <li>Fixed aperture (ACAMERA_LENS_INFO_AVAILABLE_APERTURES contains single value).</li>
-     * </ul>
-     * <p>Then this state will always be STATIONARY.</p>
-     * <p>When the state is MOVING, it indicates that at least one of the lens parameters
-     * is changing.</p>
-     *
-     * @see ACAMERA_LENS_APERTURE
-     * @see ACAMERA_LENS_FILTER_DENSITY
-     * @see ACAMERA_LENS_FOCAL_LENGTH
-     * @see ACAMERA_LENS_FOCUS_DISTANCE
-     * @see ACAMERA_LENS_INFO_AVAILABLE_APERTURES
-     * @see ACAMERA_LENS_INFO_AVAILABLE_FILTER_DENSITIES
-     * @see ACAMERA_LENS_INFO_AVAILABLE_FOCAL_LENGTHS
-     * @see ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE
-     */
-    ACAMERA_LENS_STATE =                                        // byte (enum)
-            ACAMERA_LENS_START + 9,
-    /**
-     * <p>The parameters for this camera device's intrinsic
-     * calibration.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     * </ul>
-     *
-     * <p>The five calibration parameters that describe the
-     * transform from camera-centric 3D coordinates to sensor
-     * pixel coordinates:</p>
-     * <pre><code>[f_x, f_y, c_x, c_y, s]
-     * </code></pre>
-     * <p>Where <code>f_x</code> and <code>f_y</code> are the horizontal and vertical
-     * focal lengths, <code>[c_x, c_y]</code> is the position of the optical
-     * axis, and <code>s</code> is a skew parameter for the sensor plane not
-     * being aligned with the lens plane.</p>
-     * <p>These are typically used within a transformation matrix K:</p>
-     * <pre><code>K = [ f_x,   s, c_x,
-     *        0, f_y, c_y,
-     *        0    0,   1 ]
-     * </code></pre>
-     * <p>which can then be combined with the camera pose rotation
-     * <code>R</code> and translation <code>t</code> (ACAMERA_LENS_POSE_ROTATION and
-     * ACAMERA_LENS_POSE_TRANSLATION, respective) to calculate the
-     * complete transform from world coordinates to pixel
-     * coordinates:</p>
-     * <pre><code>P = [ K 0   * [ R t
-     *      0 1 ]     0 1 ]
-     * </code></pre>
-     * <p>and with <code>p_w</code> being a point in the world coordinate system
-     * and <code>p_s</code> being a point in the camera active pixel array
-     * coordinate system, and with the mapping including the
-     * homogeneous division by z:</p>
-     * <pre><code> p_h = (x_h, y_h, z_h) = P p_w
-     * p_s = p_h / z_h
-     * </code></pre>
-     * <p>so <code>[x_s, y_s]</code> is the pixel coordinates of the world
-     * point, <code>z_s = 1</code>, and <code>w_s</code> is a measurement of disparity
-     * (depth) in pixel coordinates.</p>
-     * <p>Note that the coordinate system for this transform is the
-     * ACAMERA_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE system,
-     * where <code>(0,0)</code> is the top-left of the
-     * preCorrectionActiveArraySize rectangle. Once the pose and
-     * intrinsic calibration transforms have been applied to a
-     * world point, then the ACAMERA_LENS_RADIAL_DISTORTION
-     * transform needs to be applied, and the result adjusted to
-     * be in the ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE coordinate
-     * system (where <code>(0, 0)</code> is the top-left of the
-     * activeArraySize rectangle), to determine the final pixel
-     * coordinate of the world point for processed (non-RAW)
-     * output buffers.</p>
-     *
-     * @see ACAMERA_LENS_POSE_ROTATION
-     * @see ACAMERA_LENS_POSE_TRANSLATION
-     * @see ACAMERA_LENS_RADIAL_DISTORTION
-     * @see ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
-     * @see ACAMERA_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE
-     */
-    ACAMERA_LENS_INTRINSIC_CALIBRATION =                        // float[5]
-            ACAMERA_LENS_START + 10,
-    /**
-     * <p>The correction coefficients to correct for this camera device's
-     * radial and tangential lens distortion.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     * </ul>
-     *
-     * <p>Four radial distortion coefficients <code>[kappa_0, kappa_1, kappa_2,
-     * kappa_3]</code> and two tangential distortion coefficients
-     * <code>[kappa_4, kappa_5]</code> that can be used to correct the
-     * lens's geometric distortion with the mapping equations:</p>
-     * <pre><code> x_c = x_i * ( kappa_0 + kappa_1 * r^2 + kappa_2 * r^4 + kappa_3 * r^6 ) +
-     *        kappa_4 * (2 * x_i * y_i) + kappa_5 * ( r^2 + 2 * x_i^2 )
-     *  y_c = y_i * ( kappa_0 + kappa_1 * r^2 + kappa_2 * r^4 + kappa_3 * r^6 ) +
-     *        kappa_5 * (2 * x_i * y_i) + kappa_4 * ( r^2 + 2 * y_i^2 )
-     * </code></pre>
-     * <p>Here, <code>[x_c, y_c]</code> are the coordinates to sample in the
-     * input image that correspond to the pixel values in the
-     * corrected image at the coordinate <code>[x_i, y_i]</code>:</p>
-     * <pre><code> correctedImage(x_i, y_i) = sample_at(x_c, y_c, inputImage)
-     * </code></pre>
-     * <p>The pixel coordinates are defined in a normalized
-     * coordinate system related to the
-     * ACAMERA_LENS_INTRINSIC_CALIBRATION calibration fields.
-     * Both <code>[x_i, y_i]</code> and <code>[x_c, y_c]</code> have <code>(0,0)</code> at the
-     * lens optical center <code>[c_x, c_y]</code>. The maximum magnitudes
-     * of both x and y coordinates are normalized to be 1 at the
-     * edge further from the optical center, so the range
-     * for both dimensions is <code>-1 &lt;= x &lt;= 1</code>.</p>
-     * <p>Finally, <code>r</code> represents the radial distance from the
-     * optical center, <code>r^2 = x_i^2 + y_i^2</code>, and its magnitude
-     * is therefore no larger than <code>|r| &lt;= sqrt(2)</code>.</p>
-     * <p>The distortion model used is the Brown-Conrady model.</p>
-     *
-     * @see ACAMERA_LENS_INTRINSIC_CALIBRATION
-     */
-    ACAMERA_LENS_RADIAL_DISTORTION =                            // float[6]
-            ACAMERA_LENS_START + 11,
-    ACAMERA_LENS_END,
-
-    /**
-     * <p>List of aperture size values for ACAMERA_LENS_APERTURE that are
-     * supported by this camera device.</p>
-     *
-     * @see ACAMERA_LENS_APERTURE
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>If the camera device doesn't support a variable lens aperture,
-     * this list will contain only one value, which is the fixed aperture size.</p>
-     * <p>If the camera device supports a variable aperture, the aperture values
-     * in this list will be sorted in ascending order.</p>
-     */
-    ACAMERA_LENS_INFO_AVAILABLE_APERTURES =                     // float[n]
-            ACAMERA_LENS_INFO_START,
-    /**
-     * <p>List of neutral density filter values for
-     * ACAMERA_LENS_FILTER_DENSITY that are supported by this camera device.</p>
-     *
-     * @see ACAMERA_LENS_FILTER_DENSITY
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>If a neutral density filter is not supported by this camera device,
-     * this list will contain only 0. Otherwise, this list will include every
-     * filter density supported by the camera device, in ascending order.</p>
-     */
-    ACAMERA_LENS_INFO_AVAILABLE_FILTER_DENSITIES =              // float[n]
-            ACAMERA_LENS_INFO_START + 1,
-    /**
-     * <p>List of focal lengths for ACAMERA_LENS_FOCAL_LENGTH that are supported by this camera
-     * device.</p>
-     *
-     * @see ACAMERA_LENS_FOCAL_LENGTH
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>If optical zoom is not supported, this list will only contain
-     * a single value corresponding to the fixed focal length of the
-     * device. Otherwise, this list will include every focal length supported
-     * by the camera device, in ascending order.</p>
-     */
-    ACAMERA_LENS_INFO_AVAILABLE_FOCAL_LENGTHS =                 // float[n]
-            ACAMERA_LENS_INFO_START + 2,
-    /**
-     * <p>List of optical image stabilization (OIS) modes for
-     * ACAMERA_LENS_OPTICAL_STABILIZATION_MODE that are supported by this camera device.</p>
-     *
-     * @see ACAMERA_LENS_OPTICAL_STABILIZATION_MODE
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>If OIS is not supported by a given camera device, this list will
-     * contain only OFF.</p>
-     */
-    ACAMERA_LENS_INFO_AVAILABLE_OPTICAL_STABILIZATION =         // byte[n]
-            ACAMERA_LENS_INFO_START + 3,
-    /**
-     * <p>Hyperfocal distance for this lens.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>If the lens is not fixed focus, the camera device will report this
-     * field when ACAMERA_LENS_INFO_FOCUS_DISTANCE_CALIBRATION is APPROXIMATE or CALIBRATED.</p>
-     *
-     * @see ACAMERA_LENS_INFO_FOCUS_DISTANCE_CALIBRATION
-     */
-    ACAMERA_LENS_INFO_HYPERFOCAL_DISTANCE =                     // float
-            ACAMERA_LENS_INFO_START + 4,
-    /**
-     * <p>Shortest distance from frontmost surface
-     * of the lens that can be brought into sharp focus.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>If the lens is fixed-focus, this will be
-     * 0.</p>
-     */
-    ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE =                  // float
-            ACAMERA_LENS_INFO_START + 5,
-    /**
-     * <p>Dimensions of lens shading map.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>The map should be on the order of 30-40 rows and columns, and
-     * must be smaller than 64x64.</p>
-     */
-    ACAMERA_LENS_INFO_SHADING_MAP_SIZE =                        // int32[2]
-            ACAMERA_LENS_INFO_START + 6,
-    /**
-     * <p>The lens focus distance calibration quality.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>The lens focus distance calibration quality determines the reliability of
-     * focus related metadata entries, i.e. ACAMERA_LENS_FOCUS_DISTANCE,
-     * ACAMERA_LENS_FOCUS_RANGE, ACAMERA_LENS_INFO_HYPERFOCAL_DISTANCE, and
-     * ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE.</p>
-     * <p>APPROXIMATE and CALIBRATED devices report the focus metadata in
-     * units of diopters (1/meter), so <code>0.0f</code> represents focusing at infinity,
-     * and increasing positive numbers represent focusing closer and closer
-     * to the camera device. The focus distance control also uses diopters
-     * on these devices.</p>
-     * <p>UNCALIBRATED devices do not use units that are directly comparable
-     * to any real physical measurement, but <code>0.0f</code> still represents farthest
-     * focus, and ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE represents the
-     * nearest focus the device can achieve.</p>
-     *
-     * @see ACAMERA_LENS_FOCUS_DISTANCE
-     * @see ACAMERA_LENS_FOCUS_RANGE
-     * @see ACAMERA_LENS_INFO_HYPERFOCAL_DISTANCE
-     * @see ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE
-     */
-    ACAMERA_LENS_INFO_FOCUS_DISTANCE_CALIBRATION =              // byte (enum)
-            ACAMERA_LENS_INFO_START + 7,
-    ACAMERA_LENS_INFO_END,
-
-    /**
-     * <p>Mode of operation for the noise reduction algorithm.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>The noise reduction algorithm attempts to improve image quality by removing
-     * excessive noise added by the capture process, especially in dark conditions.</p>
-     * <p>OFF means no noise reduction will be applied by the camera device, for both raw and
-     * YUV domain.</p>
-     * <p>MINIMAL means that only sensor raw domain basic noise reduction is enabled ,to remove
-     * demosaicing or other processing artifacts. For YUV_REPROCESSING, MINIMAL is same as OFF.
-     * This mode is optional, may not be support by all devices. The application should check
-     * ACAMERA_NOISE_REDUCTION_AVAILABLE_NOISE_REDUCTION_MODES before using it.</p>
-     * <p>FAST/HIGH_QUALITY both mean camera device determined noise filtering
-     * will be applied. HIGH_QUALITY mode indicates that the camera device
-     * will use the highest-quality noise filtering algorithms,
-     * even if it slows down capture rate. FAST means the camera device will not
-     * slow down capture rate when applying noise filtering. FAST may be the same as MINIMAL if
-     * MINIMAL is listed, or the same as OFF if any noise filtering will slow down capture rate.
-     * Every output stream will have a similar amount of enhancement applied.</p>
-     * <p>ZERO_SHUTTER_LAG is meant to be used by applications that maintain a continuous circular
-     * buffer of high-resolution images during preview and reprocess image(s) from that buffer
-     * into a final capture when triggered by the user. In this mode, the camera device applies
-     * noise reduction to low-resolution streams (below maximum recording resolution) to maximize
-     * preview quality, but does not apply noise reduction to high-resolution streams, since
-     * those will be reprocessed later if necessary.</p>
-     * <p>For YUV_REPROCESSING, these FAST/HIGH_QUALITY modes both mean that the camera device
-     * will apply FAST/HIGH_QUALITY YUV domain noise reduction, respectively. The camera device
-     * may adjust the noise reduction parameters for best image quality based on the
-     * android.reprocess.effectiveExposureFactor if it is set.</p>
-     *
-     * @see ACAMERA_NOISE_REDUCTION_AVAILABLE_NOISE_REDUCTION_MODES
-     */
-    ACAMERA_NOISE_REDUCTION_MODE =                              // byte (enum)
-            ACAMERA_NOISE_REDUCTION_START,
-    /**
-     * <p>List of noise reduction modes for ACAMERA_NOISE_REDUCTION_MODE that are supported
-     * by this camera device.</p>
-     *
-     * @see ACAMERA_NOISE_REDUCTION_MODE
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>Full-capability camera devices will always support OFF and FAST.</p>
-     * <p>Camera devices that support YUV_REPROCESSING or PRIVATE_REPROCESSING will support
-     * ZERO_SHUTTER_LAG.</p>
-     * <p>Legacy-capability camera devices will only support FAST mode.</p>
-     */
-    ACAMERA_NOISE_REDUCTION_AVAILABLE_NOISE_REDUCTION_MODES =   // byte[n]
-            ACAMERA_NOISE_REDUCTION_START + 2,
-    ACAMERA_NOISE_REDUCTION_END,
-
-    /**
-     * <p>The maximum numbers of different types of output streams
-     * that can be configured and used simultaneously by a camera device.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>This is a 3 element tuple that contains the max number of output simultaneous
-     * streams for raw sensor, processed (but not stalling), and processed (and stalling)
-     * formats respectively. For example, assuming that JPEG is typically a processed and
-     * stalling stream, if max raw sensor format output stream number is 1, max YUV streams
-     * number is 3, and max JPEG stream number is 2, then this tuple should be <code>(1, 3, 2)</code>.</p>
-     * <p>This lists the upper bound of the number of output streams supported by
-     * the camera device. Using more streams simultaneously may require more hardware and
-     * CPU resources that will consume more power. The image format for an output stream can
-     * be any supported format provided by ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS.
-     * The formats defined in ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS can be catergorized
-     * into the 3 stream types as below:</p>
-     * <ul>
-     * <li>Processed (but stalling): any non-RAW format with a stallDurations &gt; 0.
-     *   Typically {@link AIMAGE_FORMAT_JPEG} format.</li>
-     * <li>Raw formats: {@link AIMAGE_FORMAT_RAW16}, {@link AIMAGE_FORMAT_RAW10}, or
-     *   {@link AIMAGE_FORMAT_RAW12}.</li>
-     * <li>Processed (but not-stalling): any non-RAW format without a stall duration.
-     *   Typically {@link AIMAGE_FORMAT_YUV_420_888}.</li>
-     * </ul>
-     *
-     * @see ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS
-     */
-    ACAMERA_REQUEST_MAX_NUM_OUTPUT_STREAMS =                    // int32[3]
-            ACAMERA_REQUEST_START + 6,
-    /**
-     * <p>Specifies the number of pipeline stages the frame went
-     * through from when it was exposed to when the final completed result
-     * was available to the framework.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     * </ul>
-     *
-     * <p>Depending on what settings are used in the request, and
-     * what streams are configured, the data may undergo less processing,
-     * and some pipeline stages skipped.</p>
-     * <p>See ACAMERA_REQUEST_PIPELINE_MAX_DEPTH for more details.</p>
-     *
-     * @see ACAMERA_REQUEST_PIPELINE_MAX_DEPTH
-     */
-    ACAMERA_REQUEST_PIPELINE_DEPTH =                            // byte
-            ACAMERA_REQUEST_START + 9,
-    /**
-     * <p>Specifies the number of maximum pipeline stages a frame
-     * has to go through from when it's exposed to when it's available
-     * to the framework.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>A typical minimum value for this is 2 (one stage to expose,
-     * one stage to readout) from the sensor. The ISP then usually adds
-     * its own stages to do custom HW processing. Further stages may be
-     * added by SW processing.</p>
-     * <p>Depending on what settings are used (e.g. YUV, JPEG) and what
-     * processing is enabled (e.g. face detection), the actual pipeline
-     * depth (specified by ACAMERA_REQUEST_PIPELINE_DEPTH) may be less than
-     * the max pipeline depth.</p>
-     * <p>A pipeline depth of X stages is equivalent to a pipeline latency of
-     * X frame intervals.</p>
-     * <p>This value will normally be 8 or less, however, for high speed capture session,
-     * the max pipeline depth will be up to 8 x size of high speed capture request list.</p>
-     *
-     * @see ACAMERA_REQUEST_PIPELINE_DEPTH
-     */
-    ACAMERA_REQUEST_PIPELINE_MAX_DEPTH =                        // byte
-            ACAMERA_REQUEST_START + 10,
-    /**
-     * <p>Defines how many sub-components
-     * a result will be composed of.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>In order to combat the pipeline latency, partial results
-     * may be delivered to the application layer from the camera device as
-     * soon as they are available.</p>
-     * <p>Optional; defaults to 1. A value of 1 means that partial
-     * results are not supported, and only the final TotalCaptureResult will
-     * be produced by the camera device.</p>
-     * <p>A typical use case for this might be: after requesting an
-     * auto-focus (AF) lock the new AF state might be available 50%
-     * of the way through the pipeline.  The camera device could
-     * then immediately dispatch this state via a partial result to
-     * the application, and the rest of the metadata via later
-     * partial results.</p>
-     */
-    ACAMERA_REQUEST_PARTIAL_RESULT_COUNT =                      // int32
-            ACAMERA_REQUEST_START + 11,
-    /**
-     * <p>List of capabilities that this camera device
-     * advertises as fully supporting.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>A capability is a contract that the camera device makes in order
-     * to be able to satisfy one or more use cases.</p>
-     * <p>Listing a capability guarantees that the whole set of features
-     * required to support a common use will all be available.</p>
-     * <p>Using a subset of the functionality provided by an unsupported
-     * capability may be possible on a specific camera device implementation;
-     * to do this query each of ACAMERA_REQUEST_AVAILABLE_REQUEST_KEYS,
-     * ACAMERA_REQUEST_AVAILABLE_RESULT_KEYS,
-     * ACAMERA_REQUEST_AVAILABLE_CHARACTERISTICS_KEYS.</p>
-     * <p>The following capabilities are guaranteed to be available on
-     * ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL <code>==</code> FULL devices:</p>
-     * <ul>
-     * <li>MANUAL_SENSOR</li>
-     * <li>MANUAL_POST_PROCESSING</li>
-     * </ul>
-     * <p>Other capabilities may be available on either FULL or LIMITED
-     * devices, but the application should query this key to be sure.</p>
-     *
-     * @see ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL
-     * @see ACAMERA_REQUEST_AVAILABLE_CHARACTERISTICS_KEYS
-     * @see ACAMERA_REQUEST_AVAILABLE_REQUEST_KEYS
-     * @see ACAMERA_REQUEST_AVAILABLE_RESULT_KEYS
-     */
-    ACAMERA_REQUEST_AVAILABLE_CAPABILITIES =                    // byte[n] (enum)
-            ACAMERA_REQUEST_START + 12,
-    /**
-     * <p>A list of all keys that the camera device has available
-     * to use with {@link ACaptureRequest}.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>Attempting to set a key into a CaptureRequest that is not
-     * listed here will result in an invalid request and will be rejected
-     * by the camera device.</p>
-     * <p>This field can be used to query the feature set of a camera device
-     * at a more granular level than capabilities. This is especially
-     * important for optional keys that are not listed under any capability
-     * in ACAMERA_REQUEST_AVAILABLE_CAPABILITIES.</p>
-     *
-     * @see ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
-     */
-    ACAMERA_REQUEST_AVAILABLE_REQUEST_KEYS =                    // int32[n]
-            ACAMERA_REQUEST_START + 13,
-    /**
-     * <p>A list of all keys that the camera device has available
-     * to query with {@link ACameraMetadata} from
-     * {@link ACameraCaptureSession_captureCallback_result}.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>Attempting to get a key from a CaptureResult that is not
-     * listed here will always return a <code>null</code> value. Getting a key from
-     * a CaptureResult that is listed here will generally never return a <code>null</code>
-     * value.</p>
-     * <p>The following keys may return <code>null</code> unless they are enabled:</p>
-     * <ul>
-     * <li>ACAMERA_STATISTICS_LENS_SHADING_MAP (non-null iff ACAMERA_STATISTICS_LENS_SHADING_MAP_MODE == ON)</li>
-     * </ul>
-     * <p>(Those sometimes-null keys will nevertheless be listed here
-     * if they are available.)</p>
-     * <p>This field can be used to query the feature set of a camera device
-     * at a more granular level than capabilities. This is especially
-     * important for optional keys that are not listed under any capability
-     * in ACAMERA_REQUEST_AVAILABLE_CAPABILITIES.</p>
-     *
-     * @see ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
-     * @see ACAMERA_STATISTICS_LENS_SHADING_MAP
-     * @see ACAMERA_STATISTICS_LENS_SHADING_MAP_MODE
-     */
-    ACAMERA_REQUEST_AVAILABLE_RESULT_KEYS =                     // int32[n]
-            ACAMERA_REQUEST_START + 14,
-    /**
-     * <p>A list of all keys that the camera device has available
-     * to query with {@link ACameraMetadata} from
-     * {@link ACameraManager_getCameraCharacteristics}.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>This entry follows the same rules as
-     * ACAMERA_REQUEST_AVAILABLE_RESULT_KEYS (except that it applies for
-     * CameraCharacteristics instead of CaptureResult). See above for more
-     * details.</p>
-     *
-     * @see ACAMERA_REQUEST_AVAILABLE_RESULT_KEYS
-     */
-    ACAMERA_REQUEST_AVAILABLE_CHARACTERISTICS_KEYS =            // int32[n]
-            ACAMERA_REQUEST_START + 15,
-    ACAMERA_REQUEST_END,
-
-    /**
-     * <p>The desired region of the sensor to read out for this capture.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>This control can be used to implement digital zoom.</p>
-     * <p>The data representation is int[4], which maps to (left, top, width, height).</p>
-     * <p>The crop region coordinate system is based off
-     * ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE, with <code>(0, 0)</code> being the
-     * top-left corner of the sensor active array.</p>
-     * <p>Output streams use this rectangle to produce their output,
-     * cropping to a smaller region if necessary to maintain the
-     * stream's aspect ratio, then scaling the sensor input to
-     * match the output's configured resolution.</p>
-     * <p>The crop region is applied after the RAW to other color
-     * space (e.g. YUV) conversion. Since raw streams
-     * (e.g. RAW16) don't have the conversion stage, they are not
-     * croppable. The crop region will be ignored by raw streams.</p>
-     * <p>For non-raw streams, any additional per-stream cropping will
-     * be done to maximize the final pixel area of the stream.</p>
-     * <p>For example, if the crop region is set to a 4:3 aspect
-     * ratio, then 4:3 streams will use the exact crop
-     * region. 16:9 streams will further crop vertically
-     * (letterbox).</p>
-     * <p>Conversely, if the crop region is set to a 16:9, then 4:3
-     * outputs will crop horizontally (pillarbox), and 16:9
-     * streams will match exactly. These additional crops will
-     * be centered within the crop region.</p>
-     * <p>The width and height of the crop region cannot
-     * be set to be smaller than
-     * <code>floor( activeArraySize.width / ACAMERA_SCALER_AVAILABLE_MAX_DIGITAL_ZOOM )</code> and
-     * <code>floor( activeArraySize.height / ACAMERA_SCALER_AVAILABLE_MAX_DIGITAL_ZOOM )</code>, respectively.</p>
-     * <p>The camera device may adjust the crop region to account
-     * for rounding and other hardware requirements; the final
-     * crop region used will be included in the output capture
-     * result.</p>
-     *
-     * @see ACAMERA_SCALER_AVAILABLE_MAX_DIGITAL_ZOOM
-     * @see ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
-     */
-    ACAMERA_SCALER_CROP_REGION =                                // int32[4]
-            ACAMERA_SCALER_START,
-    /**
-     * <p>The maximum ratio between both active area width
-     * and crop region width, and active area height and
-     * crop region height, for ACAMERA_SCALER_CROP_REGION.</p>
-     *
-     * @see ACAMERA_SCALER_CROP_REGION
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>This represents the maximum amount of zooming possible by
-     * the camera device, or equivalently, the minimum cropping
-     * window size.</p>
-     * <p>Crop regions that have a width or height that is smaller
-     * than this ratio allows will be rounded up to the minimum
-     * allowed size by the camera device.</p>
-     */
-    ACAMERA_SCALER_AVAILABLE_MAX_DIGITAL_ZOOM =                 // float
-            ACAMERA_SCALER_START + 4,
-    /**
-     * <p>The available stream configurations that this
-     * camera device supports
-     * (i.e. format, width, height, output/input stream).</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>The configurations are listed as <code>(format, width, height, input?)</code>
-     * tuples.</p>
-     * <p>For a given use case, the actual maximum supported resolution
-     * may be lower than what is listed here, depending on the destination
-     * Surface for the image data. For example, for recording video,
-     * the video encoder chosen may have a maximum size limit (e.g. 1080p)
-     * smaller than what the camera (e.g. maximum resolution is 3264x2448)
-     * can provide.</p>
-     * <p>Please reference the documentation for the image data destination to
-     * check if it limits the maximum size for image data.</p>
-     * <p>Not all output formats may be supported in a configuration with
-     * an input stream of a particular format. For more details, see
-     * android.scaler.availableInputOutputFormatsMap.</p>
-     * <p>The following table describes the minimum required output stream
-     * configurations based on the hardware level
-     * (ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL):</p>
-     * <p>Format         | Size                                         | Hardware Level | Notes
-     * :-------------:|:--------------------------------------------:|:--------------:|:--------------:
-     * JPEG           | ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE          | Any            |
-     * JPEG           | 1920x1080 (1080p)                            | Any            | if 1080p &lt;= activeArraySize
-     * JPEG           | 1280x720 (720)                               | Any            | if 720p &lt;= activeArraySize
-     * JPEG           | 640x480 (480p)                               | Any            | if 480p &lt;= activeArraySize
-     * JPEG           | 320x240 (240p)                               | Any            | if 240p &lt;= activeArraySize
-     * YUV_420_888    | all output sizes available for JPEG          | FULL           |
-     * YUV_420_888    | all output sizes available for JPEG, up to the maximum video size | LIMITED        |
-     * IMPLEMENTATION_DEFINED | same as YUV_420_888                  | Any            |</p>
-     * <p>Refer to ACAMERA_REQUEST_AVAILABLE_CAPABILITIES for additional
-     * mandatory stream configurations on a per-capability basis.</p>
-     *
-     * @see ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL
-     * @see ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
-     * @see ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
-     */
-    ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS =            // int32[n*4] (enum)
-            ACAMERA_SCALER_START + 10,
-    /**
-     * <p>This lists the minimum frame duration for each
-     * format/size combination.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>This should correspond to the frame duration when only that
-     * stream is active, with all processing (typically in android.*.mode)
-     * set to either OFF or FAST.</p>
-     * <p>When multiple streams are used in a request, the minimum frame
-     * duration will be max(individual stream min durations).</p>
-     * <p>The minimum frame duration of a stream (of a particular format, size)
-     * is the same regardless of whether the stream is input or output.</p>
-     * <p>See ACAMERA_SENSOR_FRAME_DURATION and
-     * ACAMERA_SCALER_AVAILABLE_STALL_DURATIONS for more details about
-     * calculating the max frame rate.</p>
-     *
-     * @see ACAMERA_SCALER_AVAILABLE_STALL_DURATIONS
-     * @see ACAMERA_SENSOR_FRAME_DURATION
-     */
-    ACAMERA_SCALER_AVAILABLE_MIN_FRAME_DURATIONS =              // int64[4*n]
-            ACAMERA_SCALER_START + 11,
-    /**
-     * <p>This lists the maximum stall duration for each
-     * output format/size combination.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>A stall duration is how much extra time would get added
-     * to the normal minimum frame duration for a repeating request
-     * that has streams with non-zero stall.</p>
-     * <p>For example, consider JPEG captures which have the following
-     * characteristics:</p>
-     * <ul>
-     * <li>JPEG streams act like processed YUV streams in requests for which
-     * they are not included; in requests in which they are directly
-     * referenced, they act as JPEG streams. This is because supporting a
-     * JPEG stream requires the underlying YUV data to always be ready for
-     * use by a JPEG encoder, but the encoder will only be used (and impact
-     * frame duration) on requests that actually reference a JPEG stream.</li>
-     * <li>The JPEG processor can run concurrently to the rest of the camera
-     * pipeline, but cannot process more than 1 capture at a time.</li>
-     * </ul>
-     * <p>In other words, using a repeating YUV request would result
-     * in a steady frame rate (let's say it's 30 FPS). If a single
-     * JPEG request is submitted periodically, the frame rate will stay
-     * at 30 FPS (as long as we wait for the previous JPEG to return each
-     * time). If we try to submit a repeating YUV + JPEG request, then
-     * the frame rate will drop from 30 FPS.</p>
-     * <p>In general, submitting a new request with a non-0 stall time
-     * stream will <em>not</em> cause a frame rate drop unless there are still
-     * outstanding buffers for that stream from previous requests.</p>
-     * <p>Submitting a repeating request with streams (call this <code>S</code>)
-     * is the same as setting the minimum frame duration from
-     * the normal minimum frame duration corresponding to <code>S</code>, added with
-     * the maximum stall duration for <code>S</code>.</p>
-     * <p>If interleaving requests with and without a stall duration,
-     * a request will stall by the maximum of the remaining times
-     * for each can-stall stream with outstanding buffers.</p>
-     * <p>This means that a stalling request will not have an exposure start
-     * until the stall has completed.</p>
-     * <p>This should correspond to the stall duration when only that stream is
-     * active, with all processing (typically in android.*.mode) set to FAST
-     * or OFF. Setting any of the processing modes to HIGH_QUALITY
-     * effectively results in an indeterminate stall duration for all
-     * streams in a request (the regular stall calculation rules are
-     * ignored).</p>
-     * <p>The following formats may always have a stall duration:</p>
-     * <ul>
-     * <li>{@link AIMAGE_FORMAT_JPEG}</li>
-     * <li>{@link AIMAGE_FORMAT_RAW16}</li>
-     * </ul>
-     * <p>The following formats will never have a stall duration:</p>
-     * <ul>
-     * <li>{@link AIMAGE_FORMAT_YUV_420_888}</li>
-     * <li>{@link AIMAGE_FORMAT_RAW10}</li>
-     * </ul>
-     * <p>All other formats may or may not have an allowed stall duration on
-     * a per-capability basis; refer to ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
-     * for more details.</p>
-     * <p>See ACAMERA_SENSOR_FRAME_DURATION for more information about
-     * calculating the max frame rate (absent stalls).</p>
-     *
-     * @see ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
-     * @see ACAMERA_SENSOR_FRAME_DURATION
-     */
-    ACAMERA_SCALER_AVAILABLE_STALL_DURATIONS =                  // int64[4*n]
-            ACAMERA_SCALER_START + 12,
-    /**
-     * <p>The crop type that this camera device supports.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>When passing a non-centered crop region (ACAMERA_SCALER_CROP_REGION) to a camera
-     * device that only supports CENTER_ONLY cropping, the camera device will move the
-     * crop region to the center of the sensor active array (ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE)
-     * and keep the crop region width and height unchanged. The camera device will return the
-     * final used crop region in metadata result ACAMERA_SCALER_CROP_REGION.</p>
-     * <p>Camera devices that support FREEFORM cropping will support any crop region that
-     * is inside of the active array. The camera device will apply the same crop region and
-     * return the final used crop region in capture result metadata ACAMERA_SCALER_CROP_REGION.</p>
-     * <p>LEGACY capability devices will only support CENTER_ONLY cropping.</p>
-     *
-     * @see ACAMERA_SCALER_CROP_REGION
-     * @see ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
-     */
-    ACAMERA_SCALER_CROPPING_TYPE =                              // byte (enum)
-            ACAMERA_SCALER_START + 13,
-    ACAMERA_SCALER_END,
-
-    /**
-     * <p>Duration each pixel is exposed to
-     * light.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>If the sensor can't expose this exact duration, it will shorten the
-     * duration exposed to the nearest possible value (rather than expose longer).
-     * The final exposure time used will be available in the output capture result.</p>
-     * <p>This control is only effective if ACAMERA_CONTROL_AE_MODE or ACAMERA_CONTROL_MODE is set to
-     * OFF; otherwise the auto-exposure algorithm will override this value.</p>
-     *
-     * @see ACAMERA_CONTROL_AE_MODE
-     * @see ACAMERA_CONTROL_MODE
-     */
-    ACAMERA_SENSOR_EXPOSURE_TIME =                              // int64
-            ACAMERA_SENSOR_START,
-    /**
-     * <p>Duration from start of frame exposure to
-     * start of next frame exposure.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>The maximum frame rate that can be supported by a camera subsystem is
-     * a function of many factors:</p>
-     * <ul>
-     * <li>Requested resolutions of output image streams</li>
-     * <li>Availability of binning / skipping modes on the imager</li>
-     * <li>The bandwidth of the imager interface</li>
-     * <li>The bandwidth of the various ISP processing blocks</li>
-     * </ul>
-     * <p>Since these factors can vary greatly between different ISPs and
-     * sensors, the camera abstraction tries to represent the bandwidth
-     * restrictions with as simple a model as possible.</p>
-     * <p>The model presented has the following characteristics:</p>
-     * <ul>
-     * <li>The image sensor is always configured to output the smallest
-     * resolution possible given the application's requested output stream
-     * sizes.  The smallest resolution is defined as being at least as large
-     * as the largest requested output stream size; the camera pipeline must
-     * never digitally upsample sensor data when the crop region covers the
-     * whole sensor. In general, this means that if only small output stream
-     * resolutions are configured, the sensor can provide a higher frame
-     * rate.</li>
-     * <li>Since any request may use any or all the currently configured
-     * output streams, the sensor and ISP must be configured to support
-     * scaling a single capture to all the streams at the same time.  This
-     * means the camera pipeline must be ready to produce the largest
-     * requested output size without any delay.  Therefore, the overall
-     * frame rate of a given configured stream set is governed only by the
-     * largest requested stream resolution.</li>
-     * <li>Using more than one output stream in a request does not affect the
-     * frame duration.</li>
-     * <li>Certain format-streams may need to do additional background processing
-     * before data is consumed/produced by that stream. These processors
-     * can run concurrently to the rest of the camera pipeline, but
-     * cannot process more than 1 capture at a time.</li>
-     * </ul>
-     * <p>The necessary information for the application, given the model above,
-     * is provided via
-     * {@link ACAMERA_SCALER_AVAILABLE_MIN_FRAME_DURATIONS}.
-     * These are used to determine the maximum frame rate / minimum frame
-     * duration that is possible for a given stream configuration.</p>
-     * <p>Specifically, the application can use the following rules to
-     * determine the minimum frame duration it can request from the camera
-     * device:</p>
-     * <ol>
-     * <li>Let the set of currently configured input/output streams
-     * be called <code>S</code>.</li>
-     * <li>Find the minimum frame durations for each stream in <code>S</code>, by looking
-     * it up in {@link ACAMERA_SCALER_AVAILABLE_MIN_FRAME_DURATIONS}
-     * (with its respective size/format). Let this set of frame durations be
-     * called <code>F</code>.</li>
-     * <li>For any given request <code>R</code>, the minimum frame duration allowed
-     * for <code>R</code> is the maximum out of all values in <code>F</code>. Let the streams
-     * used in <code>R</code> be called <code>S_r</code>.</li>
-     * </ol>
-     * <p>If none of the streams in <code>S_r</code> have a stall time (listed in {@link
-     * ACAMERA_SCALER_AVAILABLE_STALL_DURATIONS}
-     * using its respective size/format), then the frame duration in <code>F</code>
-     * determines the steady state frame rate that the application will get
-     * if it uses <code>R</code> as a repeating request. Let this special kind of
-     * request be called <code>Rsimple</code>.</p>
-     * <p>A repeating request <code>Rsimple</code> can be <em>occasionally</em> interleaved
-     * by a single capture of a new request <code>Rstall</code> (which has at least
-     * one in-use stream with a non-0 stall time) and if <code>Rstall</code> has the
-     * same minimum frame duration this will not cause a frame rate loss
-     * if all buffers from the previous <code>Rstall</code> have already been
-     * delivered.</p>
-     * <p>For more details about stalling, see
-     * {@link ACAMERA_SCALER_AVAILABLE_STALL_DURATIONS}.</p>
-     * <p>This control is only effective if ACAMERA_CONTROL_AE_MODE or ACAMERA_CONTROL_MODE is set to
-     * OFF; otherwise the auto-exposure algorithm will override this value.</p>
-     *
-     * @see ACAMERA_CONTROL_AE_MODE
-     * @see ACAMERA_CONTROL_MODE
-     */
-    ACAMERA_SENSOR_FRAME_DURATION =                             // int64
-            ACAMERA_SENSOR_START + 1,
-    /**
-     * <p>The amount of gain applied to sensor data
-     * before processing.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>The sensitivity is the standard ISO sensitivity value,
-     * as defined in ISO 12232:2006.</p>
-     * <p>The sensitivity must be within ACAMERA_SENSOR_INFO_SENSITIVITY_RANGE, and
-     * if if it less than ACAMERA_SENSOR_MAX_ANALOG_SENSITIVITY, the camera device
-     * is guaranteed to use only analog amplification for applying the gain.</p>
-     * <p>If the camera device cannot apply the exact sensitivity
-     * requested, it will reduce the gain to the nearest supported
-     * value. The final sensitivity used will be available in the
-     * output capture result.</p>
-     * <p>This control is only effective if ACAMERA_CONTROL_AE_MODE or ACAMERA_CONTROL_MODE is set to
-     * OFF; otherwise the auto-exposure algorithm will override this value.</p>
-     *
-     * @see ACAMERA_CONTROL_AE_MODE
-     * @see ACAMERA_CONTROL_MODE
-     * @see ACAMERA_SENSOR_INFO_SENSITIVITY_RANGE
-     * @see ACAMERA_SENSOR_MAX_ANALOG_SENSITIVITY
-     */
-    ACAMERA_SENSOR_SENSITIVITY =                                // int32
-            ACAMERA_SENSOR_START + 2,
-    /**
-     * <p>The standard reference illuminant used as the scene light source when
-     * calculating the ACAMERA_SENSOR_COLOR_TRANSFORM1,
-     * ACAMERA_SENSOR_CALIBRATION_TRANSFORM1, and
-     * ACAMERA_SENSOR_FORWARD_MATRIX1 matrices.</p>
-     *
-     * @see ACAMERA_SENSOR_CALIBRATION_TRANSFORM1
-     * @see ACAMERA_SENSOR_COLOR_TRANSFORM1
-     * @see ACAMERA_SENSOR_FORWARD_MATRIX1
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>The values in this key correspond to the values defined for the
-     * EXIF LightSource tag. These illuminants are standard light sources
-     * that are often used calibrating camera devices.</p>
-     * <p>If this key is present, then ACAMERA_SENSOR_COLOR_TRANSFORM1,
-     * ACAMERA_SENSOR_CALIBRATION_TRANSFORM1, and
-     * ACAMERA_SENSOR_FORWARD_MATRIX1 will also be present.</p>
-     * <p>Some devices may choose to provide a second set of calibration
-     * information for improved quality, including
-     * ACAMERA_SENSOR_REFERENCE_ILLUMINANT2 and its corresponding matrices.</p>
-     *
-     * @see ACAMERA_SENSOR_CALIBRATION_TRANSFORM1
-     * @see ACAMERA_SENSOR_COLOR_TRANSFORM1
-     * @see ACAMERA_SENSOR_FORWARD_MATRIX1
-     * @see ACAMERA_SENSOR_REFERENCE_ILLUMINANT2
-     */
-    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1 =                      // byte (enum)
-            ACAMERA_SENSOR_START + 3,
-    /**
-     * <p>The standard reference illuminant used as the scene light source when
-     * calculating the ACAMERA_SENSOR_COLOR_TRANSFORM2,
-     * ACAMERA_SENSOR_CALIBRATION_TRANSFORM2, and
-     * ACAMERA_SENSOR_FORWARD_MATRIX2 matrices.</p>
-     *
-     * @see ACAMERA_SENSOR_CALIBRATION_TRANSFORM2
-     * @see ACAMERA_SENSOR_COLOR_TRANSFORM2
-     * @see ACAMERA_SENSOR_FORWARD_MATRIX2
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>See ACAMERA_SENSOR_REFERENCE_ILLUMINANT1 for more details.</p>
-     * <p>If this key is present, then ACAMERA_SENSOR_COLOR_TRANSFORM2,
-     * ACAMERA_SENSOR_CALIBRATION_TRANSFORM2, and
-     * ACAMERA_SENSOR_FORWARD_MATRIX2 will also be present.</p>
-     *
-     * @see ACAMERA_SENSOR_CALIBRATION_TRANSFORM2
-     * @see ACAMERA_SENSOR_COLOR_TRANSFORM2
-     * @see ACAMERA_SENSOR_FORWARD_MATRIX2
-     * @see ACAMERA_SENSOR_REFERENCE_ILLUMINANT1
-     */
-    ACAMERA_SENSOR_REFERENCE_ILLUMINANT2 =                      // byte
-            ACAMERA_SENSOR_START + 4,
-    /**
-     * <p>A per-device calibration transform matrix that maps from the
-     * reference sensor colorspace to the actual device sensor colorspace.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>This matrix is used to correct for per-device variations in the
-     * sensor colorspace, and is used for processing raw buffer data.</p>
-     * <p>The matrix is expressed as a 3x3 matrix in row-major-order, and
-     * contains a per-device calibration transform that maps colors
-     * from reference sensor color space (i.e. the "golden module"
-     * colorspace) into this camera device's native sensor color
-     * space under the first reference illuminant
-     * (ACAMERA_SENSOR_REFERENCE_ILLUMINANT1).</p>
-     *
-     * @see ACAMERA_SENSOR_REFERENCE_ILLUMINANT1
-     */
-    ACAMERA_SENSOR_CALIBRATION_TRANSFORM1 =                     // rational[3*3]
-            ACAMERA_SENSOR_START + 5,
-    /**
-     * <p>A per-device calibration transform matrix that maps from the
-     * reference sensor colorspace to the actual device sensor colorspace
-     * (this is the colorspace of the raw buffer data).</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>This matrix is used to correct for per-device variations in the
-     * sensor colorspace, and is used for processing raw buffer data.</p>
-     * <p>The matrix is expressed as a 3x3 matrix in row-major-order, and
-     * contains a per-device calibration transform that maps colors
-     * from reference sensor color space (i.e. the "golden module"
-     * colorspace) into this camera device's native sensor color
-     * space under the second reference illuminant
-     * (ACAMERA_SENSOR_REFERENCE_ILLUMINANT2).</p>
-     * <p>This matrix will only be present if the second reference
-     * illuminant is present.</p>
-     *
-     * @see ACAMERA_SENSOR_REFERENCE_ILLUMINANT2
-     */
-    ACAMERA_SENSOR_CALIBRATION_TRANSFORM2 =                     // rational[3*3]
-            ACAMERA_SENSOR_START + 6,
-    /**
-     * <p>A matrix that transforms color values from CIE XYZ color space to
-     * reference sensor color space.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>This matrix is used to convert from the standard CIE XYZ color
-     * space to the reference sensor colorspace, and is used when processing
-     * raw buffer data.</p>
-     * <p>The matrix is expressed as a 3x3 matrix in row-major-order, and
-     * contains a color transform matrix that maps colors from the CIE
-     * XYZ color space to the reference sensor color space (i.e. the
-     * "golden module" colorspace) under the first reference illuminant
-     * (ACAMERA_SENSOR_REFERENCE_ILLUMINANT1).</p>
-     * <p>The white points chosen in both the reference sensor color space
-     * and the CIE XYZ colorspace when calculating this transform will
-     * match the standard white point for the first reference illuminant
-     * (i.e. no chromatic adaptation will be applied by this transform).</p>
-     *
-     * @see ACAMERA_SENSOR_REFERENCE_ILLUMINANT1
-     */
-    ACAMERA_SENSOR_COLOR_TRANSFORM1 =                           // rational[3*3]
-            ACAMERA_SENSOR_START + 7,
-    /**
-     * <p>A matrix that transforms color values from CIE XYZ color space to
-     * reference sensor color space.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>This matrix is used to convert from the standard CIE XYZ color
-     * space to the reference sensor colorspace, and is used when processing
-     * raw buffer data.</p>
-     * <p>The matrix is expressed as a 3x3 matrix in row-major-order, and
-     * contains a color transform matrix that maps colors from the CIE
-     * XYZ color space to the reference sensor color space (i.e. the
-     * "golden module" colorspace) under the second reference illuminant
-     * (ACAMERA_SENSOR_REFERENCE_ILLUMINANT2).</p>
-     * <p>The white points chosen in both the reference sensor color space
-     * and the CIE XYZ colorspace when calculating this transform will
-     * match the standard white point for the second reference illuminant
-     * (i.e. no chromatic adaptation will be applied by this transform).</p>
-     * <p>This matrix will only be present if the second reference
-     * illuminant is present.</p>
-     *
-     * @see ACAMERA_SENSOR_REFERENCE_ILLUMINANT2
-     */
-    ACAMERA_SENSOR_COLOR_TRANSFORM2 =                           // rational[3*3]
-            ACAMERA_SENSOR_START + 8,
-    /**
-     * <p>A matrix that transforms white balanced camera colors from the reference
-     * sensor colorspace to the CIE XYZ colorspace with a D50 whitepoint.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>This matrix is used to convert to the standard CIE XYZ colorspace, and
-     * is used when processing raw buffer data.</p>
-     * <p>This matrix is expressed as a 3x3 matrix in row-major-order, and contains
-     * a color transform matrix that maps white balanced colors from the
-     * reference sensor color space to the CIE XYZ color space with a D50 white
-     * point.</p>
-     * <p>Under the first reference illuminant (ACAMERA_SENSOR_REFERENCE_ILLUMINANT1)
-     * this matrix is chosen so that the standard white point for this reference
-     * illuminant in the reference sensor colorspace is mapped to D50 in the
-     * CIE XYZ colorspace.</p>
-     *
-     * @see ACAMERA_SENSOR_REFERENCE_ILLUMINANT1
-     */
-    ACAMERA_SENSOR_FORWARD_MATRIX1 =                            // rational[3*3]
-            ACAMERA_SENSOR_START + 9,
-    /**
-     * <p>A matrix that transforms white balanced camera colors from the reference
-     * sensor colorspace to the CIE XYZ colorspace with a D50 whitepoint.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>This matrix is used to convert to the standard CIE XYZ colorspace, and
-     * is used when processing raw buffer data.</p>
-     * <p>This matrix is expressed as a 3x3 matrix in row-major-order, and contains
-     * a color transform matrix that maps white balanced colors from the
-     * reference sensor color space to the CIE XYZ color space with a D50 white
-     * point.</p>
-     * <p>Under the second reference illuminant (ACAMERA_SENSOR_REFERENCE_ILLUMINANT2)
-     * this matrix is chosen so that the standard white point for this reference
-     * illuminant in the reference sensor colorspace is mapped to D50 in the
-     * CIE XYZ colorspace.</p>
-     * <p>This matrix will only be present if the second reference
-     * illuminant is present.</p>
-     *
-     * @see ACAMERA_SENSOR_REFERENCE_ILLUMINANT2
-     */
-    ACAMERA_SENSOR_FORWARD_MATRIX2 =                            // rational[3*3]
-            ACAMERA_SENSOR_START + 10,
-    /**
-     * <p>A fixed black level offset for each of the color filter arrangement
-     * (CFA) mosaic channels.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>This key specifies the zero light value for each of the CFA mosaic
-     * channels in the camera sensor.  The maximal value output by the
-     * sensor is represented by the value in ACAMERA_SENSOR_INFO_WHITE_LEVEL.</p>
-     * <p>The values are given in the same order as channels listed for the CFA
-     * layout key (see ACAMERA_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT), i.e. the
-     * nth value given corresponds to the black level offset for the nth
-     * color channel listed in the CFA.</p>
-     * <p>The black level values of captured images may vary for different
-     * capture settings (e.g., ACAMERA_SENSOR_SENSITIVITY). This key
-     * represents a coarse approximation for such case. It is recommended to
-     * use ACAMERA_SENSOR_DYNAMIC_BLACK_LEVEL or use pixels from
-     * ACAMERA_SENSOR_OPTICAL_BLACK_REGIONS directly for captures when
-     * supported by the camera device, which provides more accurate black
-     * level values. For raw capture in particular, it is recommended to use
-     * pixels from ACAMERA_SENSOR_OPTICAL_BLACK_REGIONS to calculate black
-     * level values for each frame.</p>
-     *
-     * @see ACAMERA_SENSOR_DYNAMIC_BLACK_LEVEL
-     * @see ACAMERA_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT
-     * @see ACAMERA_SENSOR_INFO_WHITE_LEVEL
-     * @see ACAMERA_SENSOR_OPTICAL_BLACK_REGIONS
-     * @see ACAMERA_SENSOR_SENSITIVITY
-     */
-    ACAMERA_SENSOR_BLACK_LEVEL_PATTERN =                        // int32[4]
-            ACAMERA_SENSOR_START + 12,
-    /**
-     * <p>Maximum sensitivity that is implemented
-     * purely through analog gain.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>For ACAMERA_SENSOR_SENSITIVITY values less than or
-     * equal to this, all applied gain must be analog. For
-     * values above this, the gain applied can be a mix of analog and
-     * digital.</p>
-     *
-     * @see ACAMERA_SENSOR_SENSITIVITY
-     */
-    ACAMERA_SENSOR_MAX_ANALOG_SENSITIVITY =                     // int32
-            ACAMERA_SENSOR_START + 13,
-    /**
-     * <p>Clockwise angle through which the output image needs to be rotated to be
-     * upright on the device screen in its native orientation.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>Also defines the direction of rolling shutter readout, which is from top to bottom in
-     * the sensor's coordinate system.</p>
-     */
-    ACAMERA_SENSOR_ORIENTATION =                                // int32
-            ACAMERA_SENSOR_START + 14,
-    /**
-     * <p>Time at start of exposure of first
-     * row of the image sensor active array, in nanoseconds.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     * </ul>
-     *
-     * <p>The timestamps are also included in all image
-     * buffers produced for the same capture, and will be identical
-     * on all the outputs.</p>
-     * <p>When ACAMERA_SENSOR_INFO_TIMESTAMP_SOURCE <code>==</code> UNKNOWN,
-     * the timestamps measure time since an unspecified starting point,
-     * and are monotonically increasing. They can be compared with the
-     * timestamps for other captures from the same camera device, but are
-     * not guaranteed to be comparable to any other time source.</p>
-     * <p>When ACAMERA_SENSOR_INFO_TIMESTAMP_SOURCE <code>==</code> REALTIME, the
-     * timestamps measure time in the same timebase as
-     * <a href="https://developer.android.com/reference/android/os/SystemClock.html#elapsedRealtimeNanos">elapsedRealtimeNanos</a>
-     * (or CLOCK_BOOTTIME), and they can
-     * be compared to other timestamps from other subsystems that
-     * are using that base.</p>
-     * <p>For reprocessing, the timestamp will match the start of exposure of
-     * the input image, i.e. {@link CaptureResult#SENSOR_TIMESTAMP the
-     * timestamp} in the TotalCaptureResult that was used to create the
-     * reprocess capture request.</p>
-     *
-     * @see ACAMERA_SENSOR_INFO_TIMESTAMP_SOURCE
-     */
-    ACAMERA_SENSOR_TIMESTAMP =                                  // int64
-            ACAMERA_SENSOR_START + 16,
-    /**
-     * <p>The estimated camera neutral color in the native sensor colorspace at
-     * the time of capture.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     * </ul>
-     *
-     * <p>This value gives the neutral color point encoded as an RGB value in the
-     * native sensor color space.  The neutral color point indicates the
-     * currently estimated white point of the scene illumination.  It can be
-     * used to interpolate between the provided color transforms when
-     * processing raw sensor data.</p>
-     * <p>The order of the values is R, G, B; where R is in the lowest index.</p>
-     */
-    ACAMERA_SENSOR_NEUTRAL_COLOR_POINT =                        // rational[3]
-            ACAMERA_SENSOR_START + 18,
-    /**
-     * <p>Noise model coefficients for each CFA mosaic channel.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     * </ul>
-     *
-     * <p>This key contains two noise model coefficients for each CFA channel
-     * corresponding to the sensor amplification (S) and sensor readout
-     * noise (O).  These are given as pairs of coefficients for each channel
-     * in the same order as channels listed for the CFA layout key
-     * (see ACAMERA_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT).  This is
-     * represented as an array of Pair&lt;Double, Double&gt;, where
-     * the first member of the Pair at index n is the S coefficient and the
-     * second member is the O coefficient for the nth color channel in the CFA.</p>
-     * <p>These coefficients are used in a two parameter noise model to describe
-     * the amount of noise present in the image for each CFA channel.  The
-     * noise model used here is:</p>
-     * <p>N(x) = sqrt(Sx + O)</p>
-     * <p>Where x represents the recorded signal of a CFA channel normalized to
-     * the range [0, 1], and S and O are the noise model coeffiecients for
-     * that channel.</p>
-     * <p>A more detailed description of the noise model can be found in the
-     * Adobe DNG specification for the NoiseProfile tag.</p>
-     *
-     * @see ACAMERA_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT
-     */
-    ACAMERA_SENSOR_NOISE_PROFILE =                              // double[2*CFA Channels]
-            ACAMERA_SENSOR_START + 19,
-    /**
-     * <p>The worst-case divergence between Bayer green channels.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     * </ul>
-     *
-     * <p>This value is an estimate of the worst case split between the
-     * Bayer green channels in the red and blue rows in the sensor color
-     * filter array.</p>
-     * <p>The green split is calculated as follows:</p>
-     * <ol>
-     * <li>A 5x5 pixel (or larger) window W within the active sensor array is
-     * chosen. The term 'pixel' here is taken to mean a group of 4 Bayer
-     * mosaic channels (R, Gr, Gb, B).  The location and size of the window
-     * chosen is implementation defined, and should be chosen to provide a
-     * green split estimate that is both representative of the entire image
-     * for this camera sensor, and can be calculated quickly.</li>
-     * <li>The arithmetic mean of the green channels from the red
-     * rows (mean_Gr) within W is computed.</li>
-     * <li>The arithmetic mean of the green channels from the blue
-     * rows (mean_Gb) within W is computed.</li>
-     * <li>The maximum ratio R of the two means is computed as follows:
-     * <code>R = max((mean_Gr + 1)/(mean_Gb + 1), (mean_Gb + 1)/(mean_Gr + 1))</code></li>
-     * </ol>
-     * <p>The ratio R is the green split divergence reported for this property,
-     * which represents how much the green channels differ in the mosaic
-     * pattern.  This value is typically used to determine the treatment of
-     * the green mosaic channels when demosaicing.</p>
-     * <p>The green split value can be roughly interpreted as follows:</p>
-     * <ul>
-     * <li>R &lt; 1.03 is a negligible split (&lt;3% divergence).</li>
-     * <li>1.20 &lt;= R &gt;= 1.03 will require some software
-     * correction to avoid demosaic errors (3-20% divergence).</li>
-     * <li>R &gt; 1.20 will require strong software correction to produce
-     * a usuable image (&gt;20% divergence).</li>
-     * </ul>
-     */
-    ACAMERA_SENSOR_GREEN_SPLIT =                                // float
-            ACAMERA_SENSOR_START + 22,
-    /**
-     * <p>A pixel <code>[R, G_even, G_odd, B]</code> that supplies the test pattern
-     * when ACAMERA_SENSOR_TEST_PATTERN_MODE is SOLID_COLOR.</p>
-     *
-     * @see ACAMERA_SENSOR_TEST_PATTERN_MODE
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>Each color channel is treated as an unsigned 32-bit integer.
-     * The camera device then uses the most significant X bits
-     * that correspond to how many bits are in its Bayer raw sensor
-     * output.</p>
-     * <p>For example, a sensor with RAW10 Bayer output would use the
-     * 10 most significant bits from each color channel.</p>
-     */
-    ACAMERA_SENSOR_TEST_PATTERN_DATA =                          // int32[4]
-            ACAMERA_SENSOR_START + 23,
-    /**
-     * <p>When enabled, the sensor sends a test pattern instead of
-     * doing a real exposure from the camera.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>When a test pattern is enabled, all manual sensor controls specified
-     * by ACAMERA_SENSOR_* will be ignored. All other controls should
-     * work as normal.</p>
-     * <p>For example, if manual flash is enabled, flash firing should still
-     * occur (and that the test pattern remain unmodified, since the flash
-     * would not actually affect it).</p>
-     * <p>Defaults to OFF.</p>
-     */
-    ACAMERA_SENSOR_TEST_PATTERN_MODE =                          // int32 (enum)
-            ACAMERA_SENSOR_START + 24,
-    /**
-     * <p>List of sensor test pattern modes for ACAMERA_SENSOR_TEST_PATTERN_MODE
-     * supported by this camera device.</p>
-     *
-     * @see ACAMERA_SENSOR_TEST_PATTERN_MODE
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>Defaults to OFF, and always includes OFF if defined.</p>
-     */
-    ACAMERA_SENSOR_AVAILABLE_TEST_PATTERN_MODES =               // int32[n]
-            ACAMERA_SENSOR_START + 25,
-    /**
-     * <p>Duration between the start of first row exposure
-     * and the start of last row exposure.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     * </ul>
-     *
-     * <p>This is the exposure time skew between the first and last
-     * row exposure start times. The first row and the last row are
-     * the first and last rows inside of the
-     * ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE.</p>
-     * <p>For typical camera sensors that use rolling shutters, this is also equivalent
-     * to the frame readout time.</p>
-     *
-     * @see ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
-     */
-    ACAMERA_SENSOR_ROLLING_SHUTTER_SKEW =                       // int64
-            ACAMERA_SENSOR_START + 26,
-    /**
-     * <p>List of disjoint rectangles indicating the sensor
-     * optically shielded black pixel regions.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>In most camera sensors, the active array is surrounded by some
-     * optically shielded pixel areas. By blocking light, these pixels
-     * provides a reliable black reference for black level compensation
-     * in active array region.</p>
-     * <p>The data representation is int[4], which maps to (left, top, width, height).</p>
-     * <p>This key provides a list of disjoint rectangles specifying the
-     * regions of optically shielded (with metal shield) black pixel
-     * regions if the camera device is capable of reading out these black
-     * pixels in the output raw images. In comparison to the fixed black
-     * level values reported by ACAMERA_SENSOR_BLACK_LEVEL_PATTERN, this key
-     * may provide a more accurate way for the application to calculate
-     * black level of each captured raw images.</p>
-     * <p>When this key is reported, the ACAMERA_SENSOR_DYNAMIC_BLACK_LEVEL and
-     * ACAMERA_SENSOR_DYNAMIC_WHITE_LEVEL will also be reported.</p>
-     *
-     * @see ACAMERA_SENSOR_BLACK_LEVEL_PATTERN
-     * @see ACAMERA_SENSOR_DYNAMIC_BLACK_LEVEL
-     * @see ACAMERA_SENSOR_DYNAMIC_WHITE_LEVEL
-     */
-    ACAMERA_SENSOR_OPTICAL_BLACK_REGIONS =                      // int32[4*num_regions]
-            ACAMERA_SENSOR_START + 27,
-    /**
-     * <p>A per-frame dynamic black level offset for each of the color filter
-     * arrangement (CFA) mosaic channels.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     * </ul>
-     *
-     * <p>Camera sensor black levels may vary dramatically for different
-     * capture settings (e.g. ACAMERA_SENSOR_SENSITIVITY). The fixed black
-     * level reported by ACAMERA_SENSOR_BLACK_LEVEL_PATTERN may be too
-     * inaccurate to represent the actual value on a per-frame basis. The
-     * camera device internal pipeline relies on reliable black level values
-     * to process the raw images appropriately. To get the best image
-     * quality, the camera device may choose to estimate the per frame black
-     * level values either based on optically shielded black regions
-     * (ACAMERA_SENSOR_OPTICAL_BLACK_REGIONS) or its internal model.</p>
-     * <p>This key reports the camera device estimated per-frame zero light
-     * value for each of the CFA mosaic channels in the camera sensor. The
-     * ACAMERA_SENSOR_BLACK_LEVEL_PATTERN may only represent a coarse
-     * approximation of the actual black level values. This value is the
-     * black level used in camera device internal image processing pipeline
-     * and generally more accurate than the fixed black level values.
-     * However, since they are estimated values by the camera device, they
-     * may not be as accurate as the black level values calculated from the
-     * optical black pixels reported by ACAMERA_SENSOR_OPTICAL_BLACK_REGIONS.</p>
-     * <p>The values are given in the same order as channels listed for the CFA
-     * layout key (see ACAMERA_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT), i.e. the
-     * nth value given corresponds to the black level offset for the nth
-     * color channel listed in the CFA.</p>
-     * <p>This key will be available if ACAMERA_SENSOR_OPTICAL_BLACK_REGIONS is
-     * available or the camera device advertises this key via
-     * {@link ACAMERA_REQUEST_AVAILABLE_RESULT_KEYS}.</p>
-     *
-     * @see ACAMERA_SENSOR_BLACK_LEVEL_PATTERN
-     * @see ACAMERA_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT
-     * @see ACAMERA_SENSOR_OPTICAL_BLACK_REGIONS
-     * @see ACAMERA_SENSOR_SENSITIVITY
-     */
-    ACAMERA_SENSOR_DYNAMIC_BLACK_LEVEL =                        // float[4]
-            ACAMERA_SENSOR_START + 28,
-    /**
-     * <p>Maximum raw value output by sensor for this frame.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     * </ul>
-     *
-     * <p>Since the ACAMERA_SENSOR_BLACK_LEVEL_PATTERN may change for different
-     * capture settings (e.g., ACAMERA_SENSOR_SENSITIVITY), the white
-     * level will change accordingly. This key is similar to
-     * ACAMERA_SENSOR_INFO_WHITE_LEVEL, but specifies the camera device
-     * estimated white level for each frame.</p>
-     * <p>This key will be available if ACAMERA_SENSOR_OPTICAL_BLACK_REGIONS is
-     * available or the camera device advertises this key via
-     * {@link ACAMERA_REQUEST_AVAILABLE_RESULT_KEYS}.</p>
-     *
-     * @see ACAMERA_SENSOR_BLACK_LEVEL_PATTERN
-     * @see ACAMERA_SENSOR_INFO_WHITE_LEVEL
-     * @see ACAMERA_SENSOR_OPTICAL_BLACK_REGIONS
-     * @see ACAMERA_SENSOR_SENSITIVITY
-     */
-    ACAMERA_SENSOR_DYNAMIC_WHITE_LEVEL =                        // int32
-            ACAMERA_SENSOR_START + 29,
-    ACAMERA_SENSOR_END,
-
-    /**
-     * <p>The area of the image sensor which corresponds to active pixels after any geometric
-     * distortion correction has been applied.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>This is the rectangle representing the size of the active region of the sensor (i.e.
-     * the region that actually receives light from the scene) after any geometric correction
-     * has been applied, and should be treated as the maximum size in pixels of any of the
-     * image output formats aside from the raw formats.</p>
-     * <p>This rectangle is defined relative to the full pixel array; (0,0) is the top-left of
-     * the full pixel array, and the size of the full pixel array is given by
-     * ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE.</p>
-     * <p>The data representation is int[4], which maps to (left, top, width, height).</p>
-     * <p>The coordinate system for most other keys that list pixel coordinates, including
-     * ACAMERA_SCALER_CROP_REGION, is defined relative to the active array rectangle given in
-     * this field, with <code>(0, 0)</code> being the top-left of this rectangle.</p>
-     * <p>The active array may be smaller than the full pixel array, since the full array may
-     * include black calibration pixels or other inactive regions, and geometric correction
-     * resulting in scaling or cropping may have been applied.</p>
-     *
-     * @see ACAMERA_SCALER_CROP_REGION
-     * @see ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE
-     */
-    ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE =                     // int32[4]
-            ACAMERA_SENSOR_INFO_START,
-    /**
-     * <p>Range of sensitivities for ACAMERA_SENSOR_SENSITIVITY supported by this
-     * camera device.</p>
-     *
-     * @see ACAMERA_SENSOR_SENSITIVITY
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>The values are the standard ISO sensitivity values,
-     * as defined in ISO 12232:2006.</p>
-     */
-    ACAMERA_SENSOR_INFO_SENSITIVITY_RANGE =                     // int32[2]
-            ACAMERA_SENSOR_INFO_START + 1,
-    /**
-     * <p>The arrangement of color filters on sensor;
-     * represents the colors in the top-left 2x2 section of
-     * the sensor, in reading order.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>None</p>
-     */
-    ACAMERA_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT =              // byte (enum)
-            ACAMERA_SENSOR_INFO_START + 2,
-    /**
-     * <p>The range of image exposure times for ACAMERA_SENSOR_EXPOSURE_TIME supported
-     * by this camera device.</p>
-     *
-     * @see ACAMERA_SENSOR_EXPOSURE_TIME
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>None</p>
-     */
-    ACAMERA_SENSOR_INFO_EXPOSURE_TIME_RANGE =                   // int64[2]
-            ACAMERA_SENSOR_INFO_START + 3,
-    /**
-     * <p>The maximum possible frame duration (minimum frame rate) for
-     * ACAMERA_SENSOR_FRAME_DURATION that is supported this camera device.</p>
-     *
-     * @see ACAMERA_SENSOR_FRAME_DURATION
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>Attempting to use frame durations beyond the maximum will result in the frame
-     * duration being clipped to the maximum. See that control for a full definition of frame
-     * durations.</p>
-     * <p>Refer to {@link
-     * ACAMERA_SCALER_AVAILABLE_MIN_FRAME_DURATIONS}
-     * for the minimum frame duration values.</p>
-     */
-    ACAMERA_SENSOR_INFO_MAX_FRAME_DURATION =                    // int64
-            ACAMERA_SENSOR_INFO_START + 4,
-    /**
-     * <p>The physical dimensions of the full pixel
-     * array.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>This is the physical size of the sensor pixel
-     * array defined by ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE.</p>
-     *
-     * @see ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE
-     */
-    ACAMERA_SENSOR_INFO_PHYSICAL_SIZE =                         // float[2]
-            ACAMERA_SENSOR_INFO_START + 5,
-    /**
-     * <p>Dimensions of the full pixel array, possibly
-     * including black calibration pixels.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>The pixel count of the full pixel array of the image sensor, which covers
-     * ACAMERA_SENSOR_INFO_PHYSICAL_SIZE area.  This represents the full pixel dimensions of
-     * the raw buffers produced by this sensor.</p>
-     * <p>If a camera device supports raw sensor formats, either this or
-     * ACAMERA_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE is the maximum dimensions for the raw
-     * output formats listed in ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS (this depends on
-     * whether or not the image sensor returns buffers containing pixels that are not
-     * part of the active array region for blacklevel calibration or other purposes).</p>
-     * <p>Some parts of the full pixel array may not receive light from the scene,
-     * or be otherwise inactive.  The ACAMERA_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE key
-     * defines the rectangle of active pixels that will be included in processed image
-     * formats.</p>
-     *
-     * @see ACAMERA_SENSOR_INFO_PHYSICAL_SIZE
-     * @see ACAMERA_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE
-     */
-    ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE =                      // int32[2]
-            ACAMERA_SENSOR_INFO_START + 6,
-    /**
-     * <p>Maximum raw value output by sensor.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>This specifies the fully-saturated encoding level for the raw
-     * sample values from the sensor.  This is typically caused by the
-     * sensor becoming highly non-linear or clipping. The minimum for
-     * each channel is specified by the offset in the
-     * ACAMERA_SENSOR_BLACK_LEVEL_PATTERN key.</p>
-     * <p>The white level is typically determined either by sensor bit depth
-     * (8-14 bits is expected), or by the point where the sensor response
-     * becomes too non-linear to be useful.  The default value for this is
-     * maximum representable value for a 16-bit raw sample (2^16 - 1).</p>
-     * <p>The white level values of captured images may vary for different
-     * capture settings (e.g., ACAMERA_SENSOR_SENSITIVITY). This key
-     * represents a coarse approximation for such case. It is recommended
-     * to use ACAMERA_SENSOR_DYNAMIC_WHITE_LEVEL for captures when supported
-     * by the camera device, which provides more accurate white level values.</p>
-     *
-     * @see ACAMERA_SENSOR_BLACK_LEVEL_PATTERN
-     * @see ACAMERA_SENSOR_DYNAMIC_WHITE_LEVEL
-     * @see ACAMERA_SENSOR_SENSITIVITY
-     */
-    ACAMERA_SENSOR_INFO_WHITE_LEVEL =                           // int32
-            ACAMERA_SENSOR_INFO_START + 7,
-    /**
-     * <p>The time base source for sensor capture start timestamps.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>The timestamps provided for captures are always in nanoseconds and monotonic, but
-     * may not based on a time source that can be compared to other system time sources.</p>
-     * <p>This characteristic defines the source for the timestamps, and therefore whether they
-     * can be compared against other system time sources/timestamps.</p>
-     */
-    ACAMERA_SENSOR_INFO_TIMESTAMP_SOURCE =                      // byte (enum)
-            ACAMERA_SENSOR_INFO_START + 8,
-    /**
-     * <p>Whether the RAW images output from this camera device are subject to
-     * lens shading correction.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>If TRUE, all images produced by the camera device in the RAW image formats will
-     * have lens shading correction already applied to it. If FALSE, the images will
-     * not be adjusted for lens shading correction.
-     * See android.request.maxNumOutputRaw for a list of RAW image formats.</p>
-     * <p>This key will be <code>null</code> for all devices do not report this information.
-     * Devices with RAW capability will always report this information in this key.</p>
-     */
-    ACAMERA_SENSOR_INFO_LENS_SHADING_APPLIED =                  // byte (enum)
-            ACAMERA_SENSOR_INFO_START + 9,
-    /**
-     * <p>The area of the image sensor which corresponds to active pixels prior to the
-     * application of any geometric distortion correction.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>The data representation is int[4], which maps to (left, top, width, height).</p>
-     * <p>This is the rectangle representing the size of the active region of the sensor (i.e.
-     * the region that actually receives light from the scene) before any geometric correction
-     * has been applied, and should be treated as the active region rectangle for any of the
-     * raw formats.  All metadata associated with raw processing (e.g. the lens shading
-     * correction map, and radial distortion fields) treats the top, left of this rectangle as
-     * the origin, (0,0).</p>
-     * <p>The size of this region determines the maximum field of view and the maximum number of
-     * pixels that an image from this sensor can contain, prior to the application of
-     * geometric distortion correction. The effective maximum pixel dimensions of a
-     * post-distortion-corrected image is given by the ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
-     * field, and the effective maximum field of view for a post-distortion-corrected image
-     * can be calculated by applying the geometric distortion correction fields to this
-     * rectangle, and cropping to the rectangle given in ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE.</p>
-     * <p>E.g. to calculate position of a pixel, (x,y), in a processed YUV output image with the
-     * dimensions in ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE given the position of a pixel,
-     * (x', y'), in the raw pixel array with dimensions give in
-     * ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE:</p>
-     * <ol>
-     * <li>Choose a pixel (x', y') within the active array region of the raw buffer given in
-     * ACAMERA_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE, otherwise this pixel is considered
-     * to be outside of the FOV, and will not be shown in the processed output image.</li>
-     * <li>Apply geometric distortion correction to get the post-distortion pixel coordinate,
-     * (x_i, y_i). When applying geometric correction metadata, note that metadata for raw
-     * buffers is defined relative to the top, left of the
-     * ACAMERA_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE rectangle.</li>
-     * <li>If the resulting corrected pixel coordinate is within the region given in
-     * ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE, then the position of this pixel in the
-     * processed output image buffer is <code>(x_i - activeArray.left, y_i - activeArray.top)</code>,
-     * when the top, left coordinate of that buffer is treated as (0, 0).</li>
-     * </ol>
-     * <p>Thus, for pixel x',y' = (25, 25) on a sensor where ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE
-     * is (100,100), ACAMERA_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE is (10, 10, 100, 100),
-     * ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE is (20, 20, 80, 80), and the geometric distortion
-     * correction doesn't change the pixel coordinate, the resulting pixel selected in
-     * pixel coordinates would be x,y = (25, 25) relative to the top,left of the raw buffer
-     * with dimensions given in ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE, and would be (5, 5)
-     * relative to the top,left of post-processed YUV output buffer with dimensions given in
-     * ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE.</p>
-     * <p>The currently supported fields that correct for geometric distortion are:</p>
-     * <ol>
-     * <li>ACAMERA_LENS_RADIAL_DISTORTION.</li>
-     * </ol>
-     * <p>If all of the geometric distortion fields are no-ops, this rectangle will be the same
-     * as the post-distortion-corrected rectangle given in
-     * ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE.</p>
-     * <p>This rectangle is defined relative to the full pixel array; (0,0) is the top-left of
-     * the full pixel array, and the size of the full pixel array is given by
-     * ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE.</p>
-     * <p>The pre-correction active array may be smaller than the full pixel array, since the
-     * full array may include black calibration pixels or other inactive regions.</p>
-     *
-     * @see ACAMERA_LENS_RADIAL_DISTORTION
-     * @see ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
-     * @see ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE
-     * @see ACAMERA_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE
-     */
-    ACAMERA_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE =      // int32[4]
-            ACAMERA_SENSOR_INFO_START + 10,
-    ACAMERA_SENSOR_INFO_END,
-
-    /**
-     * <p>Quality of lens shading correction applied
-     * to the image data.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>When set to OFF mode, no lens shading correction will be applied by the
-     * camera device, and an identity lens shading map data will be provided
-     * if <code>ACAMERA_STATISTICS_LENS_SHADING_MAP_MODE == ON</code>. For example, for lens
-     * shading map with size of <code>[ 4, 3 ]</code>,
-     * the output android.statistics.lensShadingCorrectionMap for this case will be an identity
-     * map shown below:</p>
-     * <pre><code>[ 1.0, 1.0, 1.0, 1.0,  1.0, 1.0, 1.0, 1.0,
-     *  1.0, 1.0, 1.0, 1.0,  1.0, 1.0, 1.0, 1.0,
-     *  1.0, 1.0, 1.0, 1.0,  1.0, 1.0, 1.0, 1.0,
-     *  1.0, 1.0, 1.0, 1.0,  1.0, 1.0, 1.0, 1.0,
-     *  1.0, 1.0, 1.0, 1.0,  1.0, 1.0, 1.0, 1.0,
-     *  1.0, 1.0, 1.0, 1.0,  1.0, 1.0, 1.0, 1.0 ]
-     * </code></pre>
-     * <p>When set to other modes, lens shading correction will be applied by the camera
-     * device. Applications can request lens shading map data by setting
-     * ACAMERA_STATISTICS_LENS_SHADING_MAP_MODE to ON, and then the camera device will provide lens
-     * shading map data in android.statistics.lensShadingCorrectionMap; the returned shading map
-     * data will be the one applied by the camera device for this capture request.</p>
-     * <p>The shading map data may depend on the auto-exposure (AE) and AWB statistics, therefore
-     * the reliability of the map data may be affected by the AE and AWB algorithms. When AE and
-     * AWB are in AUTO modes(ACAMERA_CONTROL_AE_MODE <code>!=</code> OFF and ACAMERA_CONTROL_AWB_MODE <code>!=</code>
-     * OFF), to get best results, it is recommended that the applications wait for the AE and AWB
-     * to be converged before using the returned shading map data.</p>
-     *
-     * @see ACAMERA_CONTROL_AE_MODE
-     * @see ACAMERA_CONTROL_AWB_MODE
-     * @see ACAMERA_STATISTICS_LENS_SHADING_MAP_MODE
-     */
-    ACAMERA_SHADING_MODE =                                      // byte (enum)
-            ACAMERA_SHADING_START,
-    /**
-     * <p>List of lens shading modes for ACAMERA_SHADING_MODE that are supported by this camera device.</p>
-     *
-     * @see ACAMERA_SHADING_MODE
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>This list contains lens shading modes that can be set for the camera device.
-     * Camera devices that support the MANUAL_POST_PROCESSING capability will always
-     * list OFF and FAST mode. This includes all FULL level devices.
-     * LEGACY devices will always only support FAST mode.</p>
-     */
-    ACAMERA_SHADING_AVAILABLE_MODES =                           // byte[n]
-            ACAMERA_SHADING_START + 2,
-    ACAMERA_SHADING_END,
-
-    /**
-     * <p>Operating mode for the face detector
-     * unit.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>Whether face detection is enabled, and whether it
-     * should output just the basic fields or the full set of
-     * fields.</p>
-     */
-    ACAMERA_STATISTICS_FACE_DETECT_MODE =                       // byte (enum)
-            ACAMERA_STATISTICS_START,
-    /**
-     * <p>Operating mode for hot pixel map generation.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>If set to <code>true</code>, a hot pixel map is returned in ACAMERA_STATISTICS_HOT_PIXEL_MAP.
-     * If set to <code>false</code>, no hot pixel map will be returned.</p>
-     *
-     * @see ACAMERA_STATISTICS_HOT_PIXEL_MAP
-     */
-    ACAMERA_STATISTICS_HOT_PIXEL_MAP_MODE =                     // byte (enum)
-            ACAMERA_STATISTICS_START + 3,
-    /**
-     * <p>List of unique IDs for detected faces.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     * </ul>
-     *
-     * <p>Each detected face is given a unique ID that is valid for as long as the face is visible
-     * to the camera device.  A face that leaves the field of view and later returns may be
-     * assigned a new ID.</p>
-     * <p>Only available if ACAMERA_STATISTICS_FACE_DETECT_MODE == FULL</p>
-     *
-     * @see ACAMERA_STATISTICS_FACE_DETECT_MODE
-     */
-    ACAMERA_STATISTICS_FACE_IDS =                               // int32[n]
-            ACAMERA_STATISTICS_START + 4,
-    /**
-     * <p>List of landmarks for detected
-     * faces.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     * </ul>
-     *
-     * <p>The coordinate system is that of ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE, with
-     * <code>(0, 0)</code> being the top-left pixel of the active array.</p>
-     * <p>Only available if ACAMERA_STATISTICS_FACE_DETECT_MODE == FULL</p>
-     *
-     * @see ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
-     * @see ACAMERA_STATISTICS_FACE_DETECT_MODE
-     */
-    ACAMERA_STATISTICS_FACE_LANDMARKS =                         // int32[n*6]
-            ACAMERA_STATISTICS_START + 5,
-    /**
-     * <p>List of the bounding rectangles for detected
-     * faces.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     * </ul>
-     *
-     * <p>The data representation is int[4], which maps to (left, top, width, height).</p>
-     * <p>The coordinate system is that of ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE, with
-     * <code>(0, 0)</code> being the top-left pixel of the active array.</p>
-     * <p>Only available if ACAMERA_STATISTICS_FACE_DETECT_MODE != OFF</p>
-     *
-     * @see ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
-     * @see ACAMERA_STATISTICS_FACE_DETECT_MODE
-     */
-    ACAMERA_STATISTICS_FACE_RECTANGLES =                        // int32[n*4]
-            ACAMERA_STATISTICS_START + 6,
-    /**
-     * <p>List of the face confidence scores for
-     * detected faces</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     * </ul>
-     *
-     * <p>Only available if ACAMERA_STATISTICS_FACE_DETECT_MODE != OFF.</p>
-     *
-     * @see ACAMERA_STATISTICS_FACE_DETECT_MODE
-     */
-    ACAMERA_STATISTICS_FACE_SCORES =                            // byte[n]
-            ACAMERA_STATISTICS_START + 7,
-    /**
-     * <p>The shading map is a low-resolution floating-point map
-     * that lists the coefficients used to correct for vignetting and color shading,
-     * for each Bayer color channel of RAW image data.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     * </ul>
-     *
-     * <p>The map provided here is the same map that is used by the camera device to
-     * correct both color shading and vignetting for output non-RAW images.</p>
-     * <p>When there is no lens shading correction applied to RAW
-     * output images (ACAMERA_SENSOR_INFO_LENS_SHADING_APPLIED <code>==</code>
-     * false), this map is the complete lens shading correction
-     * map; when there is some lens shading correction applied to
-     * the RAW output image (ACAMERA_SENSOR_INFO_LENS_SHADING_APPLIED<code>==</code> true), this map reports the remaining lens shading
-     * correction map that needs to be applied to get shading
-     * corrected images that match the camera device's output for
-     * non-RAW formats.</p>
-     * <p>For a complete shading correction map, the least shaded
-     * section of the image will have a gain factor of 1; all
-     * other sections will have gains above 1.</p>
-     * <p>When ACAMERA_COLOR_CORRECTION_MODE = TRANSFORM_MATRIX, the map
-     * will take into account the colorCorrection settings.</p>
-     * <p>The shading map is for the entire active pixel array, and is not
-     * affected by the crop region specified in the request. Each shading map
-     * entry is the value of the shading compensation map over a specific
-     * pixel on the sensor.  Specifically, with a (N x M) resolution shading
-     * map, and an active pixel array size (W x H), shading map entry
-     * (x,y) ϵ (0 ... N-1, 0 ... M-1) is the value of the shading map at
-     * pixel ( ((W-1)/(N-1)) * x, ((H-1)/(M-1)) * y) for the four color channels.
-     * The map is assumed to be bilinearly interpolated between the sample points.</p>
-     * <p>The channel order is [R, Geven, Godd, B], where Geven is the green
-     * channel for the even rows of a Bayer pattern, and Godd is the odd rows.
-     * The shading map is stored in a fully interleaved format, and its size
-     * is provided in the camera static metadata by ACAMERA_LENS_INFO_SHADING_MAP_SIZE.</p>
-     * <p>The shading map will generally have on the order of 30-40 rows and columns,
-     * and will be smaller than 64x64.</p>
-     * <p>As an example, given a very small map defined as:</p>
-     * <pre><code>ACAMERA_LENS_INFO_SHADING_MAP_SIZE = [ 4, 3 ]
-     * ACAMERA_STATISTICS_LENS_SHADING_MAP =
-     * [ 1.3, 1.2, 1.15, 1.2,  1.2, 1.2, 1.15, 1.2,
-     *     1.1, 1.2, 1.2, 1.2,  1.3, 1.2, 1.3, 1.3,
-     *   1.2, 1.2, 1.25, 1.1,  1.1, 1.1, 1.1, 1.0,
-     *     1.0, 1.0, 1.0, 1.0,  1.2, 1.3, 1.25, 1.2,
-     *   1.3, 1.2, 1.2, 1.3,   1.2, 1.15, 1.1, 1.2,
-     *     1.2, 1.1, 1.0, 1.2,  1.3, 1.15, 1.2, 1.3 ]
-     * </code></pre>
-     * <p>The low-resolution scaling map images for each channel are
-     * (displayed using nearest-neighbor interpolation):</p>
-     * <p><img alt="Red lens shading map" src="../images/camera2/metadata/android.statistics.lensShadingMap/red_shading.png" />
-     * <img alt="Green (even rows) lens shading map" src="../images/camera2/metadata/android.statistics.lensShadingMap/green_e_shading.png" />
-     * <img alt="Green (odd rows) lens shading map" src="../images/camera2/metadata/android.statistics.lensShadingMap/green_o_shading.png" />
-     * <img alt="Blue lens shading map" src="../images/camera2/metadata/android.statistics.lensShadingMap/blue_shading.png" /></p>
-     * <p>As a visualization only, inverting the full-color map to recover an
-     * image of a gray wall (using bicubic interpolation for visual quality)
-     * as captured by the sensor gives:</p>
-     * <p><img alt="Image of a uniform white wall (inverse shading map)" src="../images/camera2/metadata/android.statistics.lensShadingMap/inv_shading.png" /></p>
-     * <p>Note that the RAW image data might be subject to lens shading
-     * correction not reported on this map. Query
-     * ACAMERA_SENSOR_INFO_LENS_SHADING_APPLIED to see if RAW image data has subject
-     * to lens shading correction. If ACAMERA_SENSOR_INFO_LENS_SHADING_APPLIED
-     * is TRUE, the RAW image data is subject to partial or full lens shading
-     * correction. In the case full lens shading correction is applied to RAW
-     * images, the gain factor map reported in this key will contain all 1.0 gains.
-     * In other words, the map reported in this key is the remaining lens shading
-     * that needs to be applied on the RAW image to get images without lens shading
-     * artifacts. See android.request.maxNumOutputRaw for a list of RAW image
-     * formats.</p>
-     *
-     * @see ACAMERA_COLOR_CORRECTION_MODE
-     * @see ACAMERA_LENS_INFO_SHADING_MAP_SIZE
-     * @see ACAMERA_SENSOR_INFO_LENS_SHADING_APPLIED
-     * @see ACAMERA_STATISTICS_LENS_SHADING_MAP
-     */
-    ACAMERA_STATISTICS_LENS_SHADING_MAP =                       // float[4*n*m]
-            ACAMERA_STATISTICS_START + 11,
-    /**
-     * <p>The camera device estimated scene illumination lighting
-     * frequency.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     * </ul>
-     *
-     * <p>Many light sources, such as most fluorescent lights, flicker at a rate
-     * that depends on the local utility power standards. This flicker must be
-     * accounted for by auto-exposure routines to avoid artifacts in captured images.
-     * The camera device uses this entry to tell the application what the scene
-     * illuminant frequency is.</p>
-     * <p>When manual exposure control is enabled
-     * (<code>ACAMERA_CONTROL_AE_MODE == OFF</code> or <code>ACAMERA_CONTROL_MODE ==
-     * OFF</code>), the ACAMERA_CONTROL_AE_ANTIBANDING_MODE doesn't perform
-     * antibanding, and the application can ensure it selects
-     * exposure times that do not cause banding issues by looking
-     * into this metadata field. See
-     * ACAMERA_CONTROL_AE_ANTIBANDING_MODE for more details.</p>
-     * <p>Reports NONE if there doesn't appear to be flickering illumination.</p>
-     *
-     * @see ACAMERA_CONTROL_AE_ANTIBANDING_MODE
-     * @see ACAMERA_CONTROL_AE_MODE
-     * @see ACAMERA_CONTROL_MODE
-     */
-    ACAMERA_STATISTICS_SCENE_FLICKER =                          // byte (enum)
-            ACAMERA_STATISTICS_START + 14,
-    /**
-     * <p>List of <code>(x, y)</code> coordinates of hot/defective pixels on the sensor.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     * </ul>
-     *
-     * <p>A coordinate <code>(x, y)</code> must lie between <code>(0, 0)</code>, and
-     * <code>(width - 1, height - 1)</code> (inclusive), which are the top-left and
-     * bottom-right of the pixel array, respectively. The width and
-     * height dimensions are given in ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE.
-     * This may include hot pixels that lie outside of the active array
-     * bounds given by ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE.</p>
-     *
-     * @see ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
-     * @see ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE
-     */
-    ACAMERA_STATISTICS_HOT_PIXEL_MAP =                          // int32[2*n]
-            ACAMERA_STATISTICS_START + 15,
-    /**
-     * <p>Whether the camera device will output the lens
-     * shading map in output result metadata.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>When set to ON,
-     * ACAMERA_STATISTICS_LENS_SHADING_MAP will be provided in
-     * the output result metadata.</p>
-     * <p>ON is always supported on devices with the RAW capability.</p>
-     *
-     * @see ACAMERA_STATISTICS_LENS_SHADING_MAP
-     */
-    ACAMERA_STATISTICS_LENS_SHADING_MAP_MODE =                  // byte (enum)
-            ACAMERA_STATISTICS_START + 16,
-    ACAMERA_STATISTICS_END,
-
-    /**
-     * <p>List of face detection modes for ACAMERA_STATISTICS_FACE_DETECT_MODE that are
-     * supported by this camera device.</p>
-     *
-     * @see ACAMERA_STATISTICS_FACE_DETECT_MODE
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>OFF is always supported.</p>
-     */
-    ACAMERA_STATISTICS_INFO_AVAILABLE_FACE_DETECT_MODES =       // byte[n]
-            ACAMERA_STATISTICS_INFO_START,
-    /**
-     * <p>The maximum number of simultaneously detectable
-     * faces.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>None</p>
-     */
-    ACAMERA_STATISTICS_INFO_MAX_FACE_COUNT =                    // int32
-            ACAMERA_STATISTICS_INFO_START + 2,
-    /**
-     * <p>List of hot pixel map output modes for ACAMERA_STATISTICS_HOT_PIXEL_MAP_MODE that are
-     * supported by this camera device.</p>
-     *
-     * @see ACAMERA_STATISTICS_HOT_PIXEL_MAP_MODE
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>If no hotpixel map output is available for this camera device, this will contain only
-     * <code>false</code>.</p>
-     * <p>ON is always supported on devices with the RAW capability.</p>
-     */
-    ACAMERA_STATISTICS_INFO_AVAILABLE_HOT_PIXEL_MAP_MODES =     // byte[n]
-            ACAMERA_STATISTICS_INFO_START + 6,
-    /**
-     * <p>List of lens shading map output modes for ACAMERA_STATISTICS_LENS_SHADING_MAP_MODE that
-     * are supported by this camera device.</p>
-     *
-     * @see ACAMERA_STATISTICS_LENS_SHADING_MAP_MODE
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>If no lens shading map output is available for this camera device, this key will
-     * contain only OFF.</p>
-     * <p>ON is always supported on devices with the RAW capability.
-     * LEGACY mode devices will always only support OFF.</p>
-     */
-    ACAMERA_STATISTICS_INFO_AVAILABLE_LENS_SHADING_MAP_MODES =  // byte[n]
-            ACAMERA_STATISTICS_INFO_START + 7,
-    ACAMERA_STATISTICS_INFO_END,
-
-    /**
-     * <p>Tonemapping / contrast / gamma curve for the blue
-     * channel, to use when ACAMERA_TONEMAP_MODE is
-     * CONTRAST_CURVE.</p>
-     *
-     * @see ACAMERA_TONEMAP_MODE
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>See ACAMERA_TONEMAP_CURVE_RED for more details.</p>
-     *
-     * @see ACAMERA_TONEMAP_CURVE_RED
-     */
-    ACAMERA_TONEMAP_CURVE_BLUE =                                // float[n*2]
-            ACAMERA_TONEMAP_START,
-    /**
-     * <p>Tonemapping / contrast / gamma curve for the green
-     * channel, to use when ACAMERA_TONEMAP_MODE is
-     * CONTRAST_CURVE.</p>
-     *
-     * @see ACAMERA_TONEMAP_MODE
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>See ACAMERA_TONEMAP_CURVE_RED for more details.</p>
-     *
-     * @see ACAMERA_TONEMAP_CURVE_RED
-     */
-    ACAMERA_TONEMAP_CURVE_GREEN =                               // float[n*2]
-            ACAMERA_TONEMAP_START + 1,
-    /**
-     * <p>Tonemapping / contrast / gamma curve for the red
-     * channel, to use when ACAMERA_TONEMAP_MODE is
-     * CONTRAST_CURVE.</p>
-     *
-     * @see ACAMERA_TONEMAP_MODE
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>Each channel's curve is defined by an array of control points:</p>
-     * <pre><code>ACAMERA_TONEMAP_CURVE_RED =
-     *   [ P0in, P0out, P1in, P1out, P2in, P2out, P3in, P3out, ..., PNin, PNout ]
-     * 2 &lt;= N &lt;= ACAMERA_TONEMAP_MAX_CURVE_POINTS</code></pre>
-     * <p>These are sorted in order of increasing <code>Pin</code>; it is
-     * required that input values 0.0 and 1.0 are included in the list to
-     * define a complete mapping. For input values between control points,
-     * the camera device must linearly interpolate between the control
-     * points.</p>
-     * <p>Each curve can have an independent number of points, and the number
-     * of points can be less than max (that is, the request doesn't have to
-     * always provide a curve with number of points equivalent to
-     * ACAMERA_TONEMAP_MAX_CURVE_POINTS).</p>
-     * <p>A few examples, and their corresponding graphical mappings; these
-     * only specify the red channel and the precision is limited to 4
-     * digits, for conciseness.</p>
-     * <p>Linear mapping:</p>
-     * <pre><code>ACAMERA_TONEMAP_CURVE_RED = [ 0, 0, 1.0, 1.0 ]
-     * </code></pre>
-     * <p><img alt="Linear mapping curve" src="../images/camera2/metadata/android.tonemap.curveRed/linear_tonemap.png" /></p>
-     * <p>Invert mapping:</p>
-     * <pre><code>ACAMERA_TONEMAP_CURVE_RED = [ 0, 1.0, 1.0, 0 ]
-     * </code></pre>
-     * <p><img alt="Inverting mapping curve" src="../images/camera2/metadata/android.tonemap.curveRed/inverse_tonemap.png" /></p>
-     * <p>Gamma 1/2.2 mapping, with 16 control points:</p>
-     * <pre><code>ACAMERA_TONEMAP_CURVE_RED = [
-     *   0.0000, 0.0000, 0.0667, 0.2920, 0.1333, 0.4002, 0.2000, 0.4812,
-     *   0.2667, 0.5484, 0.3333, 0.6069, 0.4000, 0.6594, 0.4667, 0.7072,
-     *   0.5333, 0.7515, 0.6000, 0.7928, 0.6667, 0.8317, 0.7333, 0.8685,
-     *   0.8000, 0.9035, 0.8667, 0.9370, 0.9333, 0.9691, 1.0000, 1.0000 ]
-     * </code></pre>
-     * <p><img alt="Gamma = 1/2.2 tonemapping curve" src="../images/camera2/metadata/android.tonemap.curveRed/gamma_tonemap.png" /></p>
-     * <p>Standard sRGB gamma mapping, per IEC 61966-2-1:1999, with 16 control points:</p>
-     * <pre><code>ACAMERA_TONEMAP_CURVE_RED = [
-     *   0.0000, 0.0000, 0.0667, 0.2864, 0.1333, 0.4007, 0.2000, 0.4845,
-     *   0.2667, 0.5532, 0.3333, 0.6125, 0.4000, 0.6652, 0.4667, 0.7130,
-     *   0.5333, 0.7569, 0.6000, 0.7977, 0.6667, 0.8360, 0.7333, 0.8721,
-     *   0.8000, 0.9063, 0.8667, 0.9389, 0.9333, 0.9701, 1.0000, 1.0000 ]
-     * </code></pre>
-     * <p><img alt="sRGB tonemapping curve" src="../images/camera2/metadata/android.tonemap.curveRed/srgb_tonemap.png" /></p>
-     *
-     * @see ACAMERA_TONEMAP_CURVE_RED
-     * @see ACAMERA_TONEMAP_MAX_CURVE_POINTS
-     */
-    ACAMERA_TONEMAP_CURVE_RED =                                 // float[n*2]
-            ACAMERA_TONEMAP_START + 2,
-    /**
-     * <p>High-level global contrast/gamma/tonemapping control.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>When switching to an application-defined contrast curve by setting
-     * ACAMERA_TONEMAP_MODE to CONTRAST_CURVE, the curve is defined
-     * per-channel with a set of <code>(in, out)</code> points that specify the
-     * mapping from input high-bit-depth pixel value to the output
-     * low-bit-depth value.  Since the actual pixel ranges of both input
-     * and output may change depending on the camera pipeline, the values
-     * are specified by normalized floating-point numbers.</p>
-     * <p>More-complex color mapping operations such as 3D color look-up
-     * tables, selective chroma enhancement, or other non-linear color
-     * transforms will be disabled when ACAMERA_TONEMAP_MODE is
-     * CONTRAST_CURVE.</p>
-     * <p>When using either FAST or HIGH_QUALITY, the camera device will
-     * emit its own tonemap curve in android.tonemap.curve.
-     * These values are always available, and as close as possible to the
-     * actually used nonlinear/nonglobal transforms.</p>
-     * <p>If a request is sent with CONTRAST_CURVE with the camera device's
-     * provided curve in FAST or HIGH_QUALITY, the image's tonemap will be
-     * roughly the same.</p>
-     *
-     * @see ACAMERA_TONEMAP_MODE
-     */
-    ACAMERA_TONEMAP_MODE =                                      // byte (enum)
-            ACAMERA_TONEMAP_START + 3,
-    /**
-     * <p>Maximum number of supported points in the
-     * tonemap curve that can be used for android.tonemap.curve.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>If the actual number of points provided by the application (in ACAMERA_TONEMAPCURVE_*) is
-     * less than this maximum, the camera device will resample the curve to its internal
-     * representation, using linear interpolation.</p>
-     * <p>The output curves in the result metadata may have a different number
-     * of points than the input curves, and will represent the actual
-     * hardware curves used as closely as possible when linearly interpolated.</p>
-     */
-    ACAMERA_TONEMAP_MAX_CURVE_POINTS =                          // int32
-            ACAMERA_TONEMAP_START + 4,
-    /**
-     * <p>List of tonemapping modes for ACAMERA_TONEMAP_MODE that are supported by this camera
-     * device.</p>
-     *
-     * @see ACAMERA_TONEMAP_MODE
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>Camera devices that support the MANUAL_POST_PROCESSING capability will always contain
-     * at least one of below mode combinations:</p>
-     * <ul>
-     * <li>CONTRAST_CURVE, FAST and HIGH_QUALITY</li>
-     * <li>GAMMA_VALUE, PRESET_CURVE, FAST and HIGH_QUALITY</li>
-     * </ul>
-     * <p>This includes all FULL level devices.</p>
-     */
-    ACAMERA_TONEMAP_AVAILABLE_TONE_MAP_MODES =                  // byte[n]
-            ACAMERA_TONEMAP_START + 5,
-    /**
-     * <p>Tonemapping curve to use when ACAMERA_TONEMAP_MODE is
-     * GAMMA_VALUE</p>
-     *
-     * @see ACAMERA_TONEMAP_MODE
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>The tonemap curve will be defined the following formula:
-     * * OUT = pow(IN, 1.0 / gamma)
-     * where IN and OUT is the input pixel value scaled to range [0.0, 1.0],
-     * pow is the power function and gamma is the gamma value specified by this
-     * key.</p>
-     * <p>The same curve will be applied to all color channels. The camera device
-     * may clip the input gamma value to its supported range. The actual applied
-     * value will be returned in capture result.</p>
-     * <p>The valid range of gamma value varies on different devices, but values
-     * within [1.0, 5.0] are guaranteed not to be clipped.</p>
-     */
-    ACAMERA_TONEMAP_GAMMA =                                     // float
-            ACAMERA_TONEMAP_START + 6,
-    /**
-     * <p>Tonemapping curve to use when ACAMERA_TONEMAP_MODE is
-     * PRESET_CURVE</p>
-     *
-     * @see ACAMERA_TONEMAP_MODE
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>The tonemap curve will be defined by specified standard.</p>
-     * <p>sRGB (approximated by 16 control points):</p>
-     * <p><img alt="sRGB tonemapping curve" src="../images/camera2/metadata/android.tonemap.curveRed/srgb_tonemap.png" /></p>
-     * <p>Rec. 709 (approximated by 16 control points):</p>
-     * <p><img alt="Rec. 709 tonemapping curve" src="../images/camera2/metadata/android.tonemap.curveRed/rec709_tonemap.png" /></p>
-     * <p>Note that above figures show a 16 control points approximation of preset
-     * curves. Camera devices may apply a different approximation to the curve.</p>
-     */
-    ACAMERA_TONEMAP_PRESET_CURVE =                              // byte (enum)
-            ACAMERA_TONEMAP_START + 7,
-    ACAMERA_TONEMAP_END,
-
-    /**
-     * <p>Generally classifies the overall set of the camera device functionality.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>The supported hardware level is a high-level description of the camera device's
-     * capabilities, summarizing several capabilities into one field.  Each level adds additional
-     * features to the previous one, and is always a strict superset of the previous level.
-     * The ordering is <code>LEGACY &lt; LIMITED &lt; FULL &lt; LEVEL_3</code>.</p>
-     * <p>Starting from <code>LEVEL_3</code>, the level enumerations are guaranteed to be in increasing
-     * numerical value as well. To check if a given device is at least at a given hardware level,
-     * the following code snippet can be used:</p>
-     * <pre><code>// Returns true if the device supports the required hardware level, or better.
-     * boolean isHardwareLevelSupported(CameraCharacteristics c, int requiredLevel) {
-     *     int deviceLevel = c.get(CameraCharacteristics.INFO_SUPPORTED_HARDWARE_LEVEL);
-     *     if (deviceLevel == CameraCharacteristics.INFO_SUPPORTED_HARDWARE_LEVEL_LEGACY) {
-     *         return requiredLevel == deviceLevel;
-     *     }
-     *     // deviceLevel is not LEGACY, can use numerical sort
-     *     return requiredLevel &lt;= deviceLevel;
-     * }
-     * </code></pre>
-     * <p>At a high level, the levels are:</p>
-     * <ul>
-     * <li><code>LEGACY</code> devices operate in a backwards-compatibility mode for older
-     *   Android devices, and have very limited capabilities.</li>
-     * <li><code>LIMITED</code> devices represent the
-     *   baseline feature set, and may also include additional capabilities that are
-     *   subsets of <code>FULL</code>.</li>
-     * <li><code>FULL</code> devices additionally support per-frame manual control of sensor, flash, lens and
-     *   post-processing settings, and image capture at a high rate.</li>
-     * <li><code>LEVEL_3</code> devices additionally support YUV reprocessing and RAW image capture, along
-     *   with additional output stream configurations.</li>
-     * </ul>
-     * <p>See the individual level enums for full descriptions of the supported capabilities.  The
-     * ACAMERA_REQUEST_AVAILABLE_CAPABILITIES entry describes the device's capabilities at a
-     * finer-grain level, if needed. In addition, many controls have their available settings or
-     * ranges defined in individual metadata tag entries in this document.</p>
-     * <p>Some features are not part of any particular hardware level or capability and must be
-     * queried separately. These include:</p>
-     * <ul>
-     * <li>Calibrated timestamps (ACAMERA_SENSOR_INFO_TIMESTAMP_SOURCE <code>==</code> REALTIME)</li>
-     * <li>Precision lens control (ACAMERA_LENS_INFO_FOCUS_DISTANCE_CALIBRATION <code>==</code> CALIBRATED)</li>
-     * <li>Face detection (ACAMERA_STATISTICS_INFO_AVAILABLE_FACE_DETECT_MODES)</li>
-     * <li>Optical or electrical image stabilization
-     *   (ACAMERA_LENS_INFO_AVAILABLE_OPTICAL_STABILIZATION,
-     *    ACAMERA_CONTROL_AVAILABLE_VIDEO_STABILIZATION_MODES)</li>
-     * </ul>
-     *
-     * @see ACAMERA_CONTROL_AVAILABLE_VIDEO_STABILIZATION_MODES
-     * @see ACAMERA_LENS_INFO_AVAILABLE_OPTICAL_STABILIZATION
-     * @see ACAMERA_LENS_INFO_FOCUS_DISTANCE_CALIBRATION
-     * @see ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
-     * @see ACAMERA_SENSOR_INFO_TIMESTAMP_SOURCE
-     * @see ACAMERA_STATISTICS_INFO_AVAILABLE_FACE_DETECT_MODES
-     */
-    ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL =                     // byte (enum)
-            ACAMERA_INFO_START,
-    ACAMERA_INFO_END,
-
-    /**
-     * <p>Whether black-level compensation is locked
-     * to its current values, or is free to vary.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     *   <li>ACaptureRequest</li>
-     * </ul>
-     *
-     * <p>Whether the black level offset was locked for this frame.  Should be
-     * ON if ACAMERA_BLACK_LEVEL_LOCK was ON in the capture request, unless
-     * a change in other capture settings forced the camera device to
-     * perform a black level reset.</p>
-     *
-     * @see ACAMERA_BLACK_LEVEL_LOCK
-     */
-    ACAMERA_BLACK_LEVEL_LOCK =                                  // byte (enum)
-            ACAMERA_BLACK_LEVEL_START,
-    ACAMERA_BLACK_LEVEL_END,
-
-    /**
-     * <p>The frame number corresponding to the last request
-     * with which the output result (metadata + buffers) has been fully
-     * synchronized.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
-     * </ul>
-     *
-     * <p>When a request is submitted to the camera device, there is usually a
-     * delay of several frames before the controls get applied. A camera
-     * device may either choose to account for this delay by implementing a
-     * pipeline and carefully submit well-timed atomic control updates, or
-     * it may start streaming control changes that span over several frame
-     * boundaries.</p>
-     * <p>In the latter case, whenever a request's settings change relative to
-     * the previous submitted request, the full set of changes may take
-     * multiple frame durations to fully take effect. Some settings may
-     * take effect sooner (in less frame durations) than others.</p>
-     * <p>While a set of control changes are being propagated, this value
-     * will be CONVERGING.</p>
-     * <p>Once it is fully known that a set of control changes have been
-     * finished propagating, and the resulting updated control settings
-     * have been read back by the camera device, this value will be set
-     * to a non-negative frame number (corresponding to the request to
-     * which the results have synchronized to).</p>
-     * <p>Older camera device implementations may not have a way to detect
-     * when all camera controls have been applied, and will always set this
-     * value to UNKNOWN.</p>
-     * <p>FULL capability devices will always have this value set to the
-     * frame number of the request corresponding to this result.</p>
-     * <p><em>Further details</em>:</p>
-     * <ul>
-     * <li>Whenever a request differs from the last request, any future
-     * results not yet returned may have this value set to CONVERGING (this
-     * could include any in-progress captures not yet returned by the camera
-     * device, for more details see pipeline considerations below).</li>
-     * <li>Submitting a series of multiple requests that differ from the
-     * previous request (e.g. r1, r2, r3 s.t. r1 != r2 != r3)
-     * moves the new synchronization frame to the last non-repeating
-     * request (using the smallest frame number from the contiguous list of
-     * repeating requests).</li>
-     * <li>Submitting the same request repeatedly will not change this value
-     * to CONVERGING, if it was already a non-negative value.</li>
-     * <li>When this value changes to non-negative, that means that all of the
-     * metadata controls from the request have been applied, all of the
-     * metadata controls from the camera device have been read to the
-     * updated values (into the result), and all of the graphics buffers
-     * corresponding to this result are also synchronized to the request.</li>
-     * </ul>
-     * <p><em>Pipeline considerations</em>:</p>
-     * <p>Submitting a request with updated controls relative to the previously
-     * submitted requests may also invalidate the synchronization state
-     * of all the results corresponding to currently in-flight requests.</p>
-     * <p>In other words, results for this current request and up to
-     * ACAMERA_REQUEST_PIPELINE_MAX_DEPTH prior requests may have their
-     * ACAMERA_SYNC_FRAME_NUMBER change to CONVERGING.</p>
-     *
-     * @see ACAMERA_REQUEST_PIPELINE_MAX_DEPTH
-     * @see ACAMERA_SYNC_FRAME_NUMBER
-     */
-    ACAMERA_SYNC_FRAME_NUMBER =                                 // int64 (enum)
-            ACAMERA_SYNC_START,
-    /**
-     * <p>The maximum number of frames that can occur after a request
-     * (different than the previous) has been submitted, and before the
-     * result's state becomes synchronized.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>This defines the maximum distance (in number of metadata results),
-     * between the frame number of the request that has new controls to apply
-     * and the frame number of the result that has all the controls applied.</p>
-     * <p>In other words this acts as an upper boundary for how many frames
-     * must occur before the camera device knows for a fact that the new
-     * submitted camera settings have been applied in outgoing frames.</p>
-     */
-    ACAMERA_SYNC_MAX_LATENCY =                                  // int32 (enum)
-            ACAMERA_SYNC_START + 1,
-    ACAMERA_SYNC_END,
-
-    /**
-     * <p>The available depth dataspace stream
-     * configurations that this camera device supports
-     * (i.e. format, width, height, output/input stream).</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>These are output stream configurations for use with
-     * dataSpace HAL_DATASPACE_DEPTH. The configurations are
-     * listed as <code>(format, width, height, input?)</code> tuples.</p>
-     * <p>Only devices that support depth output for at least
-     * the HAL_PIXEL_FORMAT_Y16 dense depth map may include
-     * this entry.</p>
-     * <p>A device that also supports the HAL_PIXEL_FORMAT_BLOB
-     * sparse depth point cloud must report a single entry for
-     * the format in this list as <code>(HAL_PIXEL_FORMAT_BLOB,
-     * android.depth.maxDepthSamples, 1, OUTPUT)</code> in addition to
-     * the entries for HAL_PIXEL_FORMAT_Y16.</p>
-     */
-    ACAMERA_DEPTH_AVAILABLE_DEPTH_STREAM_CONFIGURATIONS =       // int32[n*4] (enum)
-            ACAMERA_DEPTH_START + 1,
-    /**
-     * <p>This lists the minimum frame duration for each
-     * format/size combination for depth output formats.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>This should correspond to the frame duration when only that
-     * stream is active, with all processing (typically in android.*.mode)
-     * set to either OFF or FAST.</p>
-     * <p>When multiple streams are used in a request, the minimum frame
-     * duration will be max(individual stream min durations).</p>
-     * <p>The minimum frame duration of a stream (of a particular format, size)
-     * is the same regardless of whether the stream is input or output.</p>
-     * <p>See ACAMERA_SENSOR_FRAME_DURATION and
-     * ACAMERA_SCALER_AVAILABLE_STALL_DURATIONS for more details about
-     * calculating the max frame rate.</p>
-     *
-     * @see ACAMERA_SCALER_AVAILABLE_STALL_DURATIONS
-     * @see ACAMERA_SENSOR_FRAME_DURATION
-     */
-    ACAMERA_DEPTH_AVAILABLE_DEPTH_MIN_FRAME_DURATIONS =         // int64[4*n]
-            ACAMERA_DEPTH_START + 2,
-    /**
-     * <p>This lists the maximum stall duration for each
-     * output format/size combination for depth streams.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>A stall duration is how much extra time would get added
-     * to the normal minimum frame duration for a repeating request
-     * that has streams with non-zero stall.</p>
-     * <p>This functions similarly to
-     * ACAMERA_SCALER_AVAILABLE_STALL_DURATIONS for depth
-     * streams.</p>
-     * <p>All depth output stream formats may have a nonzero stall
-     * duration.</p>
-     *
-     * @see ACAMERA_SCALER_AVAILABLE_STALL_DURATIONS
-     */
-    ACAMERA_DEPTH_AVAILABLE_DEPTH_STALL_DURATIONS =             // int64[4*n]
-            ACAMERA_DEPTH_START + 3,
-    /**
-     * <p>Indicates whether a capture request may target both a
-     * DEPTH16 / DEPTH_POINT_CLOUD output, and normal color outputs (such as
-     * YUV_420_888, JPEG, or RAW) simultaneously.</p>
-     *
-     * <p>This tag may appear in:</p>
-     * <ul>
-     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
-     * </ul>
-     *
-     * <p>If TRUE, including both depth and color outputs in a single
-     * capture request is not supported. An application must interleave color
-     * and depth requests.  If FALSE, a single request can target both types
-     * of output.</p>
-     * <p>Typically, this restriction exists on camera devices that
-     * need to emit a specific pattern or wavelength of light to
-     * measure depth values, which causes the color image to be
-     * corrupted during depth measurement.</p>
-     */
-    ACAMERA_DEPTH_DEPTH_IS_EXCLUSIVE =                          // byte (enum)
-            ACAMERA_DEPTH_START + 4,
-    ACAMERA_DEPTH_END,
-
-} acamera_metadata_tag_t;
-
-/**
- * Enumeration definitions for the various entries that need them
- */
-
-// ACAMERA_COLOR_CORRECTION_MODE
-typedef enum acamera_metadata_enum_acamera_color_correction_mode {
-    /**
-     * <p>Use the ACAMERA_COLOR_CORRECTION_TRANSFORM matrix
-     * and ACAMERA_COLOR_CORRECTION_GAINS to do color conversion.</p>
-     * <p>All advanced white balance adjustments (not specified
-     * by our white balance pipeline) must be disabled.</p>
-     * <p>If AWB is enabled with <code>ACAMERA_CONTROL_AWB_MODE != OFF</code>, then
-     * TRANSFORM_MATRIX is ignored. The camera device will override
-     * this value to either FAST or HIGH_QUALITY.</p>
-     *
-     * @see ACAMERA_COLOR_CORRECTION_GAINS
-     * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
-     * @see ACAMERA_CONTROL_AWB_MODE
-     */
-    ACAMERA_COLOR_CORRECTION_MODE_TRANSFORM_MATRIX                   = 0,
-
-    /**
-     * <p>Color correction processing must not slow down
-     * capture rate relative to sensor raw output.</p>
-     * <p>Advanced white balance adjustments above and beyond
-     * the specified white balance pipeline may be applied.</p>
-     * <p>If AWB is enabled with <code>ACAMERA_CONTROL_AWB_MODE != OFF</code>, then
-     * the camera device uses the last frame's AWB values
-     * (or defaults if AWB has never been run).</p>
-     *
-     * @see ACAMERA_CONTROL_AWB_MODE
-     */
-    ACAMERA_COLOR_CORRECTION_MODE_FAST                               = 1,
-
-    /**
-     * <p>Color correction processing operates at improved
-     * quality but the capture rate might be reduced (relative to sensor
-     * raw output rate)</p>
-     * <p>Advanced white balance adjustments above and beyond
-     * the specified white balance pipeline may be applied.</p>
-     * <p>If AWB is enabled with <code>ACAMERA_CONTROL_AWB_MODE != OFF</code>, then
-     * the camera device uses the last frame's AWB values
-     * (or defaults if AWB has never been run).</p>
-     *
-     * @see ACAMERA_CONTROL_AWB_MODE
-     */
-    ACAMERA_COLOR_CORRECTION_MODE_HIGH_QUALITY                       = 2,
-
-} acamera_metadata_enum_android_color_correction_mode_t;
-
-// ACAMERA_COLOR_CORRECTION_ABERRATION_MODE
-typedef enum acamera_metadata_enum_acamera_color_correction_aberration_mode {
-    /**
-     * <p>No aberration correction is applied.</p>
-     */
-    ACAMERA_COLOR_CORRECTION_ABERRATION_MODE_OFF                     = 0,
-
-    /**
-     * <p>Aberration correction will not slow down capture rate
-     * relative to sensor raw output.</p>
-     */
-    ACAMERA_COLOR_CORRECTION_ABERRATION_MODE_FAST                    = 1,
-
-    /**
-     * <p>Aberration correction operates at improved quality but the capture rate might be
-     * reduced (relative to sensor raw output rate)</p>
-     */
-    ACAMERA_COLOR_CORRECTION_ABERRATION_MODE_HIGH_QUALITY            = 2,
-
-} acamera_metadata_enum_android_color_correction_aberration_mode_t;
-
-
-// ACAMERA_CONTROL_AE_ANTIBANDING_MODE
-typedef enum acamera_metadata_enum_acamera_control_ae_antibanding_mode {
-    /**
-     * <p>The camera device will not adjust exposure duration to
-     * avoid banding problems.</p>
-     */
-    ACAMERA_CONTROL_AE_ANTIBANDING_MODE_OFF                          = 0,
-
-    /**
-     * <p>The camera device will adjust exposure duration to
-     * avoid banding problems with 50Hz illumination sources.</p>
-     */
-    ACAMERA_CONTROL_AE_ANTIBANDING_MODE_50HZ                         = 1,
-
-    /**
-     * <p>The camera device will adjust exposure duration to
-     * avoid banding problems with 60Hz illumination
-     * sources.</p>
-     */
-    ACAMERA_CONTROL_AE_ANTIBANDING_MODE_60HZ                         = 2,
-
-    /**
-     * <p>The camera device will automatically adapt its
-     * antibanding routine to the current illumination
-     * condition. This is the default mode if AUTO is
-     * available on given camera device.</p>
-     */
-    ACAMERA_CONTROL_AE_ANTIBANDING_MODE_AUTO                         = 3,
-
-} acamera_metadata_enum_android_control_ae_antibanding_mode_t;
-
-// ACAMERA_CONTROL_AE_LOCK
-typedef enum acamera_metadata_enum_acamera_control_ae_lock {
-    /**
-     * <p>Auto-exposure lock is disabled; the AE algorithm
-     * is free to update its parameters.</p>
-     */
-    ACAMERA_CONTROL_AE_LOCK_OFF                                      = 0,
-
-    /**
-     * <p>Auto-exposure lock is enabled; the AE algorithm
-     * must not update the exposure and sensitivity parameters
-     * while the lock is active.</p>
-     * <p>ACAMERA_CONTROL_AE_EXPOSURE_COMPENSATION setting changes
-     * will still take effect while auto-exposure is locked.</p>
-     * <p>Some rare LEGACY devices may not support
-     * this, in which case the value will always be overridden to OFF.</p>
-     *
-     * @see ACAMERA_CONTROL_AE_EXPOSURE_COMPENSATION
-     */
-    ACAMERA_CONTROL_AE_LOCK_ON                                       = 1,
-
-} acamera_metadata_enum_android_control_ae_lock_t;
-
-// ACAMERA_CONTROL_AE_MODE
-typedef enum acamera_metadata_enum_acamera_control_ae_mode {
-    /**
-     * <p>The camera device's autoexposure routine is disabled.</p>
-     * <p>The application-selected ACAMERA_SENSOR_EXPOSURE_TIME,
-     * ACAMERA_SENSOR_SENSITIVITY and
-     * ACAMERA_SENSOR_FRAME_DURATION are used by the camera
-     * device, along with ACAMERA_FLASH_* fields, if there's
-     * a flash unit for this camera device.</p>
-     * <p>Note that auto-white balance (AWB) and auto-focus (AF)
-     * behavior is device dependent when AE is in OFF mode.
-     * To have consistent behavior across different devices,
-     * it is recommended to either set AWB and AF to OFF mode
-     * or lock AWB and AF before setting AE to OFF.
-     * See ACAMERA_CONTROL_AWB_MODE, ACAMERA_CONTROL_AF_MODE,
-     * ACAMERA_CONTROL_AWB_LOCK, and ACAMERA_CONTROL_AF_TRIGGER
-     * for more details.</p>
-     * <p>LEGACY devices do not support the OFF mode and will
-     * override attempts to use this value to ON.</p>
-     *
-     * @see ACAMERA_CONTROL_AF_MODE
-     * @see ACAMERA_CONTROL_AF_TRIGGER
-     * @see ACAMERA_CONTROL_AWB_LOCK
-     * @see ACAMERA_CONTROL_AWB_MODE
-     * @see ACAMERA_SENSOR_EXPOSURE_TIME
-     * @see ACAMERA_SENSOR_FRAME_DURATION
-     * @see ACAMERA_SENSOR_SENSITIVITY
-     */
-    ACAMERA_CONTROL_AE_MODE_OFF                                      = 0,
-
-    /**
-     * <p>The camera device's autoexposure routine is active,
-     * with no flash control.</p>
-     * <p>The application's values for
-     * ACAMERA_SENSOR_EXPOSURE_TIME,
-     * ACAMERA_SENSOR_SENSITIVITY, and
-     * ACAMERA_SENSOR_FRAME_DURATION are ignored. The
-     * application has control over the various
-     * ACAMERA_FLASH_* fields.</p>
-     *
-     * @see ACAMERA_SENSOR_EXPOSURE_TIME
-     * @see ACAMERA_SENSOR_FRAME_DURATION
-     * @see ACAMERA_SENSOR_SENSITIVITY
-     */
-    ACAMERA_CONTROL_AE_MODE_ON                                       = 1,
-
-    /**
-     * <p>Like ON, except that the camera device also controls
-     * the camera's flash unit, firing it in low-light
-     * conditions.</p>
-     * <p>The flash may be fired during a precapture sequence
-     * (triggered by ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER) and
-     * may be fired for captures for which the
-     * ACAMERA_CONTROL_CAPTURE_INTENT field is set to
-     * STILL_CAPTURE</p>
-     *
-     * @see ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER
-     * @see ACAMERA_CONTROL_CAPTURE_INTENT
-     */
-    ACAMERA_CONTROL_AE_MODE_ON_AUTO_FLASH                            = 2,
-
-    /**
-     * <p>Like ON, except that the camera device also controls
-     * the camera's flash unit, always firing it for still
-     * captures.</p>
-     * <p>The flash may be fired during a precapture sequence
-     * (triggered by ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER) and
-     * will always be fired for captures for which the
-     * ACAMERA_CONTROL_CAPTURE_INTENT field is set to
-     * STILL_CAPTURE</p>
-     *
-     * @see ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER
-     * @see ACAMERA_CONTROL_CAPTURE_INTENT
-     */
-    ACAMERA_CONTROL_AE_MODE_ON_ALWAYS_FLASH                          = 3,
-
-    /**
-     * <p>Like ON_AUTO_FLASH, but with automatic red eye
-     * reduction.</p>
-     * <p>If deemed necessary by the camera device, a red eye
-     * reduction flash will fire during the precapture
-     * sequence.</p>
-     */
-    ACAMERA_CONTROL_AE_MODE_ON_AUTO_FLASH_REDEYE                     = 4,
-
-} acamera_metadata_enum_android_control_ae_mode_t;
-
-// ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER
-typedef enum acamera_metadata_enum_acamera_control_ae_precapture_trigger {
-    /**
-     * <p>The trigger is idle.</p>
-     */
-    ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER_IDLE                       = 0,
-
-    /**
-     * <p>The precapture metering sequence will be started
-     * by the camera device.</p>
-     * <p>The exact effect of the precapture trigger depends on
-     * the current AE mode and state.</p>
-     */
-    ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER_START                      = 1,
-
-    /**
-     * <p>The camera device will cancel any currently active or completed
-     * precapture metering sequence, the auto-exposure routine will return to its
-     * initial state.</p>
-     */
-    ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER_CANCEL                     = 2,
-
-} acamera_metadata_enum_android_control_ae_precapture_trigger_t;
-
-// ACAMERA_CONTROL_AF_MODE
-typedef enum acamera_metadata_enum_acamera_control_af_mode {
-    /**
-     * <p>The auto-focus routine does not control the lens;
-     * ACAMERA_LENS_FOCUS_DISTANCE is controlled by the
-     * application.</p>
-     *
-     * @see ACAMERA_LENS_FOCUS_DISTANCE
-     */
-    ACAMERA_CONTROL_AF_MODE_OFF                                      = 0,
-
-    /**
-     * <p>Basic automatic focus mode.</p>
-     * <p>In this mode, the lens does not move unless
-     * the autofocus trigger action is called. When that trigger
-     * is activated, AF will transition to ACTIVE_SCAN, then to
-     * the outcome of the scan (FOCUSED or NOT_FOCUSED).</p>
-     * <p>Always supported if lens is not fixed focus.</p>
-     * <p>Use ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE to determine if lens
-     * is fixed-focus.</p>
-     * <p>Triggering AF_CANCEL resets the lens position to default,
-     * and sets the AF state to INACTIVE.</p>
-     *
-     * @see ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE
-     */
-    ACAMERA_CONTROL_AF_MODE_AUTO                                     = 1,
-
-    /**
-     * <p>Close-up focusing mode.</p>
-     * <p>In this mode, the lens does not move unless the
-     * autofocus trigger action is called. When that trigger is
-     * activated, AF will transition to ACTIVE_SCAN, then to
-     * the outcome of the scan (FOCUSED or NOT_FOCUSED). This
-     * mode is optimized for focusing on objects very close to
-     * the camera.</p>
-     * <p>When that trigger is activated, AF will transition to
-     * ACTIVE_SCAN, then to the outcome of the scan (FOCUSED or
-     * NOT_FOCUSED). Triggering cancel AF resets the lens
-     * position to default, and sets the AF state to
-     * INACTIVE.</p>
-     */
-    ACAMERA_CONTROL_AF_MODE_MACRO                                    = 2,
-
-    /**
-     * <p>In this mode, the AF algorithm modifies the lens
-     * position continually to attempt to provide a
-     * constantly-in-focus image stream.</p>
-     * <p>The focusing behavior should be suitable for good quality
-     * video recording; typically this means slower focus
-     * movement and no overshoots. When the AF trigger is not
-     * involved, the AF algorithm should start in INACTIVE state,
-     * and then transition into PASSIVE_SCAN and PASSIVE_FOCUSED
-     * states as appropriate. When the AF trigger is activated,
-     * the algorithm should immediately transition into
-     * AF_FOCUSED or AF_NOT_FOCUSED as appropriate, and lock the
-     * lens position until a cancel AF trigger is received.</p>
-     * <p>Once cancel is received, the algorithm should transition
-     * back to INACTIVE and resume passive scan. Note that this
-     * behavior is not identical to CONTINUOUS_PICTURE, since an
-     * ongoing PASSIVE_SCAN must immediately be
-     * canceled.</p>
-     */
-    ACAMERA_CONTROL_AF_MODE_CONTINUOUS_VIDEO                         = 3,
-
-    /**
-     * <p>In this mode, the AF algorithm modifies the lens
-     * position continually to attempt to provide a
-     * constantly-in-focus image stream.</p>
-     * <p>The focusing behavior should be suitable for still image
-     * capture; typically this means focusing as fast as
-     * possible. When the AF trigger is not involved, the AF
-     * algorithm should start in INACTIVE state, and then
-     * transition into PASSIVE_SCAN and PASSIVE_FOCUSED states as
-     * appropriate as it attempts to maintain focus. When the AF
-     * trigger is activated, the algorithm should finish its
-     * PASSIVE_SCAN if active, and then transition into
-     * AF_FOCUSED or AF_NOT_FOCUSED as appropriate, and lock the
-     * lens position until a cancel AF trigger is received.</p>
-     * <p>When the AF cancel trigger is activated, the algorithm
-     * should transition back to INACTIVE and then act as if it
-     * has just been started.</p>
-     */
-    ACAMERA_CONTROL_AF_MODE_CONTINUOUS_PICTURE                       = 4,
-
-    /**
-     * <p>Extended depth of field (digital focus) mode.</p>
-     * <p>The camera device will produce images with an extended
-     * depth of field automatically; no special focusing
-     * operations need to be done before taking a picture.</p>
-     * <p>AF triggers are ignored, and the AF state will always be
-     * INACTIVE.</p>
-     */
-    ACAMERA_CONTROL_AF_MODE_EDOF                                     = 5,
-
-} acamera_metadata_enum_android_control_af_mode_t;
-
-// ACAMERA_CONTROL_AF_TRIGGER
-typedef enum acamera_metadata_enum_acamera_control_af_trigger {
-    /**
-     * <p>The trigger is idle.</p>
-     */
-    ACAMERA_CONTROL_AF_TRIGGER_IDLE                                  = 0,
-
-    /**
-     * <p>Autofocus will trigger now.</p>
-     */
-    ACAMERA_CONTROL_AF_TRIGGER_START                                 = 1,
-
-    /**
-     * <p>Autofocus will return to its initial
-     * state, and cancel any currently active trigger.</p>
-     */
-    ACAMERA_CONTROL_AF_TRIGGER_CANCEL                                = 2,
-
-} acamera_metadata_enum_android_control_af_trigger_t;
-
-// ACAMERA_CONTROL_AWB_LOCK
-typedef enum acamera_metadata_enum_acamera_control_awb_lock {
-    /**
-     * <p>Auto-white balance lock is disabled; the AWB
-     * algorithm is free to update its parameters if in AUTO
-     * mode.</p>
-     */
-    ACAMERA_CONTROL_AWB_LOCK_OFF                                     = 0,
-
-    /**
-     * <p>Auto-white balance lock is enabled; the AWB
-     * algorithm will not update its parameters while the lock
-     * is active.</p>
-     */
-    ACAMERA_CONTROL_AWB_LOCK_ON                                      = 1,
-
-} acamera_metadata_enum_android_control_awb_lock_t;
-
-// ACAMERA_CONTROL_AWB_MODE
-typedef enum acamera_metadata_enum_acamera_control_awb_mode {
-    /**
-     * <p>The camera device's auto-white balance routine is disabled.</p>
-     * <p>The application-selected color transform matrix
-     * (ACAMERA_COLOR_CORRECTION_TRANSFORM) and gains
-     * (ACAMERA_COLOR_CORRECTION_GAINS) are used by the camera
-     * device for manual white balance control.</p>
-     *
-     * @see ACAMERA_COLOR_CORRECTION_GAINS
-     * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
-     */
-    ACAMERA_CONTROL_AWB_MODE_OFF                                     = 0,
-
-    /**
-     * <p>The camera device's auto-white balance routine is active.</p>
-     * <p>The application's values for ACAMERA_COLOR_CORRECTION_TRANSFORM
-     * and ACAMERA_COLOR_CORRECTION_GAINS are ignored.
-     * For devices that support the MANUAL_POST_PROCESSING capability, the
-     * values used by the camera device for the transform and gains
-     * will be available in the capture result for this request.</p>
-     *
-     * @see ACAMERA_COLOR_CORRECTION_GAINS
-     * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
-     */
-    ACAMERA_CONTROL_AWB_MODE_AUTO                                    = 1,
-
-    /**
-     * <p>The camera device's auto-white balance routine is disabled;
-     * the camera device uses incandescent light as the assumed scene
-     * illumination for white balance.</p>
-     * <p>While the exact white balance transforms are up to the
-     * camera device, they will approximately match the CIE
-     * standard illuminant A.</p>
-     * <p>The application's values for ACAMERA_COLOR_CORRECTION_TRANSFORM
-     * and ACAMERA_COLOR_CORRECTION_GAINS are ignored.
-     * For devices that support the MANUAL_POST_PROCESSING capability, the
-     * values used by the camera device for the transform and gains
-     * will be available in the capture result for this request.</p>
-     *
-     * @see ACAMERA_COLOR_CORRECTION_GAINS
-     * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
-     */
-    ACAMERA_CONTROL_AWB_MODE_INCANDESCENT                            = 2,
-
-    /**
-     * <p>The camera device's auto-white balance routine is disabled;
-     * the camera device uses fluorescent light as the assumed scene
-     * illumination for white balance.</p>
-     * <p>While the exact white balance transforms are up to the
-     * camera device, they will approximately match the CIE
-     * standard illuminant F2.</p>
-     * <p>The application's values for ACAMERA_COLOR_CORRECTION_TRANSFORM
-     * and ACAMERA_COLOR_CORRECTION_GAINS are ignored.
-     * For devices that support the MANUAL_POST_PROCESSING capability, the
-     * values used by the camera device for the transform and gains
-     * will be available in the capture result for this request.</p>
-     *
-     * @see ACAMERA_COLOR_CORRECTION_GAINS
-     * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
-     */
-    ACAMERA_CONTROL_AWB_MODE_FLUORESCENT                             = 3,
-
-    /**
-     * <p>The camera device's auto-white balance routine is disabled;
-     * the camera device uses warm fluorescent light as the assumed scene
-     * illumination for white balance.</p>
-     * <p>While the exact white balance transforms are up to the
-     * camera device, they will approximately match the CIE
-     * standard illuminant F4.</p>
-     * <p>The application's values for ACAMERA_COLOR_CORRECTION_TRANSFORM
-     * and ACAMERA_COLOR_CORRECTION_GAINS are ignored.
-     * For devices that support the MANUAL_POST_PROCESSING capability, the
-     * values used by the camera device for the transform and gains
-     * will be available in the capture result for this request.</p>
-     *
-     * @see ACAMERA_COLOR_CORRECTION_GAINS
-     * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
-     */
-    ACAMERA_CONTROL_AWB_MODE_WARM_FLUORESCENT                        = 4,
-
-    /**
-     * <p>The camera device's auto-white balance routine is disabled;
-     * the camera device uses daylight light as the assumed scene
-     * illumination for white balance.</p>
-     * <p>While the exact white balance transforms are up to the
-     * camera device, they will approximately match the CIE
-     * standard illuminant D65.</p>
-     * <p>The application's values for ACAMERA_COLOR_CORRECTION_TRANSFORM
-     * and ACAMERA_COLOR_CORRECTION_GAINS are ignored.
-     * For devices that support the MANUAL_POST_PROCESSING capability, the
-     * values used by the camera device for the transform and gains
-     * will be available in the capture result for this request.</p>
-     *
-     * @see ACAMERA_COLOR_CORRECTION_GAINS
-     * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
-     */
-    ACAMERA_CONTROL_AWB_MODE_DAYLIGHT                                = 5,
-
-    /**
-     * <p>The camera device's auto-white balance routine is disabled;
-     * the camera device uses cloudy daylight light as the assumed scene
-     * illumination for white balance.</p>
-     * <p>The application's values for ACAMERA_COLOR_CORRECTION_TRANSFORM
-     * and ACAMERA_COLOR_CORRECTION_GAINS are ignored.
-     * For devices that support the MANUAL_POST_PROCESSING capability, the
-     * values used by the camera device for the transform and gains
-     * will be available in the capture result for this request.</p>
-     *
-     * @see ACAMERA_COLOR_CORRECTION_GAINS
-     * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
-     */
-    ACAMERA_CONTROL_AWB_MODE_CLOUDY_DAYLIGHT                         = 6,
-
-    /**
-     * <p>The camera device's auto-white balance routine is disabled;
-     * the camera device uses twilight light as the assumed scene
-     * illumination for white balance.</p>
-     * <p>The application's values for ACAMERA_COLOR_CORRECTION_TRANSFORM
-     * and ACAMERA_COLOR_CORRECTION_GAINS are ignored.
-     * For devices that support the MANUAL_POST_PROCESSING capability, the
-     * values used by the camera device for the transform and gains
-     * will be available in the capture result for this request.</p>
-     *
-     * @see ACAMERA_COLOR_CORRECTION_GAINS
-     * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
-     */
-    ACAMERA_CONTROL_AWB_MODE_TWILIGHT                                = 7,
-
-    /**
-     * <p>The camera device's auto-white balance routine is disabled;
-     * the camera device uses shade light as the assumed scene
-     * illumination for white balance.</p>
-     * <p>The application's values for ACAMERA_COLOR_CORRECTION_TRANSFORM
-     * and ACAMERA_COLOR_CORRECTION_GAINS are ignored.
-     * For devices that support the MANUAL_POST_PROCESSING capability, the
-     * values used by the camera device for the transform and gains
-     * will be available in the capture result for this request.</p>
-     *
-     * @see ACAMERA_COLOR_CORRECTION_GAINS
-     * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
-     */
-    ACAMERA_CONTROL_AWB_MODE_SHADE                                   = 8,
-
-} acamera_metadata_enum_android_control_awb_mode_t;
-
-// ACAMERA_CONTROL_CAPTURE_INTENT
-typedef enum acamera_metadata_enum_acamera_control_capture_intent {
-    /**
-     * <p>The goal of this request doesn't fall into the other
-     * categories. The camera device will default to preview-like
-     * behavior.</p>
-     */
-    ACAMERA_CONTROL_CAPTURE_INTENT_CUSTOM                            = 0,
-
-    /**
-     * <p>This request is for a preview-like use case.</p>
-     * <p>The precapture trigger may be used to start off a metering
-     * w/flash sequence.</p>
-     */
-    ACAMERA_CONTROL_CAPTURE_INTENT_PREVIEW                           = 1,
-
-    /**
-     * <p>This request is for a still capture-type
-     * use case.</p>
-     * <p>If the flash unit is under automatic control, it may fire as needed.</p>
-     */
-    ACAMERA_CONTROL_CAPTURE_INTENT_STILL_CAPTURE                     = 2,
-
-    /**
-     * <p>This request is for a video recording
-     * use case.</p>
-     */
-    ACAMERA_CONTROL_CAPTURE_INTENT_VIDEO_RECORD                      = 3,
-
-    /**
-     * <p>This request is for a video snapshot (still
-     * image while recording video) use case.</p>
-     * <p>The camera device should take the highest-quality image
-     * possible (given the other settings) without disrupting the
-     * frame rate of video recording.  </p>
-     */
-    ACAMERA_CONTROL_CAPTURE_INTENT_VIDEO_SNAPSHOT                    = 4,
-
-    /**
-     * <p>This request is for a ZSL usecase; the
-     * application will stream full-resolution images and
-     * reprocess one or several later for a final
-     * capture.</p>
-     */
-    ACAMERA_CONTROL_CAPTURE_INTENT_ZERO_SHUTTER_LAG                  = 5,
-
-    /**
-     * <p>This request is for manual capture use case where
-     * the applications want to directly control the capture parameters.</p>
-     * <p>For example, the application may wish to manually control
-     * ACAMERA_SENSOR_EXPOSURE_TIME, ACAMERA_SENSOR_SENSITIVITY, etc.</p>
-     *
-     * @see ACAMERA_SENSOR_EXPOSURE_TIME
-     * @see ACAMERA_SENSOR_SENSITIVITY
-     */
-    ACAMERA_CONTROL_CAPTURE_INTENT_MANUAL                            = 6,
-
-} acamera_metadata_enum_android_control_capture_intent_t;
-
-// ACAMERA_CONTROL_EFFECT_MODE
-typedef enum acamera_metadata_enum_acamera_control_effect_mode {
-    /**
-     * <p>No color effect will be applied.</p>
-     */
-    ACAMERA_CONTROL_EFFECT_MODE_OFF                                  = 0,
-
-    /**
-     * <p>A "monocolor" effect where the image is mapped into
-     * a single color.</p>
-     * <p>This will typically be grayscale.</p>
-     */
-    ACAMERA_CONTROL_EFFECT_MODE_MONO                                 = 1,
-
-    /**
-     * <p>A "photo-negative" effect where the image's colors
-     * are inverted.</p>
-     */
-    ACAMERA_CONTROL_EFFECT_MODE_NEGATIVE                             = 2,
-
-    /**
-     * <p>A "solarisation" effect (Sabattier effect) where the
-     * image is wholly or partially reversed in
-     * tone.</p>
-     */
-    ACAMERA_CONTROL_EFFECT_MODE_SOLARIZE                             = 3,
-
-    /**
-     * <p>A "sepia" effect where the image is mapped into warm
-     * gray, red, and brown tones.</p>
-     */
-    ACAMERA_CONTROL_EFFECT_MODE_SEPIA                                = 4,
-
-    /**
-     * <p>A "posterization" effect where the image uses
-     * discrete regions of tone rather than a continuous
-     * gradient of tones.</p>
-     */
-    ACAMERA_CONTROL_EFFECT_MODE_POSTERIZE                            = 5,
-
-    /**
-     * <p>A "whiteboard" effect where the image is typically displayed
-     * as regions of white, with black or grey details.</p>
-     */
-    ACAMERA_CONTROL_EFFECT_MODE_WHITEBOARD                           = 6,
-
-    /**
-     * <p>A "blackboard" effect where the image is typically displayed
-     * as regions of black, with white or grey details.</p>
-     */
-    ACAMERA_CONTROL_EFFECT_MODE_BLACKBOARD                           = 7,
-
-    /**
-     * <p>An "aqua" effect where a blue hue is added to the image.</p>
-     */
-    ACAMERA_CONTROL_EFFECT_MODE_AQUA                                 = 8,
-
-} acamera_metadata_enum_android_control_effect_mode_t;
-
-// ACAMERA_CONTROL_MODE
-typedef enum acamera_metadata_enum_acamera_control_mode {
-    /**
-     * <p>Full application control of pipeline.</p>
-     * <p>All control by the device's metering and focusing (3A)
-     * routines is disabled, and no other settings in
-     * ACAMERA_CONTROL_* have any effect, except that
-     * ACAMERA_CONTROL_CAPTURE_INTENT may be used by the camera
-     * device to select post-processing values for processing
-     * blocks that do not allow for manual control, or are not
-     * exposed by the camera API.</p>
-     * <p>However, the camera device's 3A routines may continue to
-     * collect statistics and update their internal state so that
-     * when control is switched to AUTO mode, good control values
-     * can be immediately applied.</p>
-     *
-     * @see ACAMERA_CONTROL_CAPTURE_INTENT
-     */
-    ACAMERA_CONTROL_MODE_OFF                                         = 0,
-
-    /**
-     * <p>Use settings for each individual 3A routine.</p>
-     * <p>Manual control of capture parameters is disabled. All
-     * controls in ACAMERA_CONTROL_* besides sceneMode take
-     * effect.</p>
-     */
-    ACAMERA_CONTROL_MODE_AUTO                                        = 1,
-
-    /**
-     * <p>Use a specific scene mode.</p>
-     * <p>Enabling this disables control.aeMode, control.awbMode and
-     * control.afMode controls; the camera device will ignore
-     * those settings while USE_SCENE_MODE is active (except for
-     * FACE_PRIORITY scene mode). Other control entries are still active.
-     * This setting can only be used if scene mode is supported (i.e.
-     * ACAMERA_CONTROL_AVAILABLE_SCENE_MODES
-     * contain some modes other than DISABLED).</p>
-     *
-     * @see ACAMERA_CONTROL_AVAILABLE_SCENE_MODES
-     */
-    ACAMERA_CONTROL_MODE_USE_SCENE_MODE                              = 2,
-
-    /**
-     * <p>Same as OFF mode, except that this capture will not be
-     * used by camera device background auto-exposure, auto-white balance and
-     * auto-focus algorithms (3A) to update their statistics.</p>
-     * <p>Specifically, the 3A routines are locked to the last
-     * values set from a request with AUTO, OFF, or
-     * USE_SCENE_MODE, and any statistics or state updates
-     * collected from manual captures with OFF_KEEP_STATE will be
-     * discarded by the camera device.</p>
-     */
-    ACAMERA_CONTROL_MODE_OFF_KEEP_STATE                              = 3,
-
-} acamera_metadata_enum_android_control_mode_t;
-
-// ACAMERA_CONTROL_SCENE_MODE
-typedef enum acamera_metadata_enum_acamera_control_scene_mode {
-    /**
-     * <p>Indicates that no scene modes are set for a given capture request.</p>
-     */
-    ACAMERA_CONTROL_SCENE_MODE_DISABLED                              = 0,
-
-    /**
-     * <p>If face detection support exists, use face
-     * detection data for auto-focus, auto-white balance, and
-     * auto-exposure routines.</p>
-     * <p>If face detection statistics are disabled
-     * (i.e. ACAMERA_STATISTICS_FACE_DETECT_MODE is set to OFF),
-     * this should still operate correctly (but will not return
-     * face detection statistics to the framework).</p>
-     * <p>Unlike the other scene modes, ACAMERA_CONTROL_AE_MODE,
-     * ACAMERA_CONTROL_AWB_MODE, and ACAMERA_CONTROL_AF_MODE
-     * remain active when FACE_PRIORITY is set.</p>
-     *
-     * @see ACAMERA_CONTROL_AE_MODE
-     * @see ACAMERA_CONTROL_AF_MODE
-     * @see ACAMERA_CONTROL_AWB_MODE
-     * @see ACAMERA_STATISTICS_FACE_DETECT_MODE
-     */
-    ACAMERA_CONTROL_SCENE_MODE_FACE_PRIORITY                         = 1,
-
-    /**
-     * <p>Optimized for photos of quickly moving objects.</p>
-     * <p>Similar to SPORTS.</p>
-     */
-    ACAMERA_CONTROL_SCENE_MODE_ACTION                                = 2,
-
-    /**
-     * <p>Optimized for still photos of people.</p>
-     */
-    ACAMERA_CONTROL_SCENE_MODE_PORTRAIT                              = 3,
-
-    /**
-     * <p>Optimized for photos of distant macroscopic objects.</p>
-     */
-    ACAMERA_CONTROL_SCENE_MODE_LANDSCAPE                             = 4,
-
-    /**
-     * <p>Optimized for low-light settings.</p>
-     */
-    ACAMERA_CONTROL_SCENE_MODE_NIGHT                                 = 5,
-
-    /**
-     * <p>Optimized for still photos of people in low-light
-     * settings.</p>
-     */
-    ACAMERA_CONTROL_SCENE_MODE_NIGHT_PORTRAIT                        = 6,
-
-    /**
-     * <p>Optimized for dim, indoor settings where flash must
-     * remain off.</p>
-     */
-    ACAMERA_CONTROL_SCENE_MODE_THEATRE                               = 7,
-
-    /**
-     * <p>Optimized for bright, outdoor beach settings.</p>
-     */
-    ACAMERA_CONTROL_SCENE_MODE_BEACH                                 = 8,
-
-    /**
-     * <p>Optimized for bright, outdoor settings containing snow.</p>
-     */
-    ACAMERA_CONTROL_SCENE_MODE_SNOW                                  = 9,
-
-    /**
-     * <p>Optimized for scenes of the setting sun.</p>
-     */
-    ACAMERA_CONTROL_SCENE_MODE_SUNSET                                = 10,
-
-    /**
-     * <p>Optimized to avoid blurry photos due to small amounts of
-     * device motion (for example: due to hand shake).</p>
-     */
-    ACAMERA_CONTROL_SCENE_MODE_STEADYPHOTO                           = 11,
-
-    /**
-     * <p>Optimized for nighttime photos of fireworks.</p>
-     */
-    ACAMERA_CONTROL_SCENE_MODE_FIREWORKS                             = 12,
-
-    /**
-     * <p>Optimized for photos of quickly moving people.</p>
-     * <p>Similar to ACTION.</p>
-     */
-    ACAMERA_CONTROL_SCENE_MODE_SPORTS                                = 13,
-
-    /**
-     * <p>Optimized for dim, indoor settings with multiple moving
-     * people.</p>
-     */
-    ACAMERA_CONTROL_SCENE_MODE_PARTY                                 = 14,
-
-    /**
-     * <p>Optimized for dim settings where the main light source
-     * is a flame.</p>
-     */
-    ACAMERA_CONTROL_SCENE_MODE_CANDLELIGHT                           = 15,
-
-    /**
-     * <p>Optimized for accurately capturing a photo of barcode
-     * for use by camera applications that wish to read the
-     * barcode value.</p>
-     */
-    ACAMERA_CONTROL_SCENE_MODE_BARCODE                               = 16,
-
-    /**
-     * <p>Turn on a device-specific high dynamic range (HDR) mode.</p>
-     * <p>In this scene mode, the camera device captures images
-     * that keep a larger range of scene illumination levels
-     * visible in the final image. For example, when taking a
-     * picture of a object in front of a bright window, both
-     * the object and the scene through the window may be
-     * visible when using HDR mode, while in normal AUTO mode,
-     * one or the other may be poorly exposed. As a tradeoff,
-     * HDR mode generally takes much longer to capture a single
-     * image, has no user control, and may have other artifacts
-     * depending on the HDR method used.</p>
-     * <p>Therefore, HDR captures operate at a much slower rate
-     * than regular captures.</p>
-     * <p>In this mode, on LIMITED or FULL devices, when a request
-     * is made with a ACAMERA_CONTROL_CAPTURE_INTENT of
-     * STILL_CAPTURE, the camera device will capture an image
-     * using a high dynamic range capture technique.  On LEGACY
-     * devices, captures that target a JPEG-format output will
-     * be captured with HDR, and the capture intent is not
-     * relevant.</p>
-     * <p>The HDR capture may involve the device capturing a burst
-     * of images internally and combining them into one, or it
-     * may involve the device using specialized high dynamic
-     * range capture hardware. In all cases, a single image is
-     * produced in response to a capture request submitted
-     * while in HDR mode.</p>
-     * <p>Since substantial post-processing is generally needed to
-     * produce an HDR image, only YUV, PRIVATE, and JPEG
-     * outputs are supported for LIMITED/FULL device HDR
-     * captures, and only JPEG outputs are supported for LEGACY
-     * HDR captures. Using a RAW output for HDR capture is not
-     * supported.</p>
-     * <p>Some devices may also support always-on HDR, which
-     * applies HDR processing at full frame rate.  For these
-     * devices, intents other than STILL_CAPTURE will also
-     * produce an HDR output with no frame rate impact compared
-     * to normal operation, though the quality may be lower
-     * than for STILL_CAPTURE intents.</p>
-     * <p>If SCENE_MODE_HDR is used with unsupported output types
-     * or capture intents, the images captured will be as if
-     * the SCENE_MODE was not enabled at all.</p>
-     *
-     * @see ACAMERA_CONTROL_CAPTURE_INTENT
-     */
-    ACAMERA_CONTROL_SCENE_MODE_HDR                                   = 18,
-
-} acamera_metadata_enum_android_control_scene_mode_t;
-
-// ACAMERA_CONTROL_VIDEO_STABILIZATION_MODE
-typedef enum acamera_metadata_enum_acamera_control_video_stabilization_mode {
-    /**
-     * <p>Video stabilization is disabled.</p>
-     */
-    ACAMERA_CONTROL_VIDEO_STABILIZATION_MODE_OFF                     = 0,
-
-    /**
-     * <p>Video stabilization is enabled.</p>
-     */
-    ACAMERA_CONTROL_VIDEO_STABILIZATION_MODE_ON                      = 1,
-
-} acamera_metadata_enum_android_control_video_stabilization_mode_t;
-
-// ACAMERA_CONTROL_AE_STATE
-typedef enum acamera_metadata_enum_acamera_control_ae_state {
-    /**
-     * <p>AE is off or recently reset.</p>
-     * <p>When a camera device is opened, it starts in
-     * this state. This is a transient state, the camera device may skip reporting
-     * this state in capture result.</p>
-     */
-    ACAMERA_CONTROL_AE_STATE_INACTIVE                                = 0,
-
-    /**
-     * <p>AE doesn't yet have a good set of control values
-     * for the current scene.</p>
-     * <p>This is a transient state, the camera device may skip
-     * reporting this state in capture result.</p>
-     */
-    ACAMERA_CONTROL_AE_STATE_SEARCHING                               = 1,
-
-    /**
-     * <p>AE has a good set of control values for the
-     * current scene.</p>
-     */
-    ACAMERA_CONTROL_AE_STATE_CONVERGED                               = 2,
-
-    /**
-     * <p>AE has been locked.</p>
-     */
-    ACAMERA_CONTROL_AE_STATE_LOCKED                                  = 3,
-
-    /**
-     * <p>AE has a good set of control values, but flash
-     * needs to be fired for good quality still
-     * capture.</p>
-     */
-    ACAMERA_CONTROL_AE_STATE_FLASH_REQUIRED                          = 4,
-
-    /**
-     * <p>AE has been asked to do a precapture sequence
-     * and is currently executing it.</p>
-     * <p>Precapture can be triggered through setting
-     * ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER to START. Currently
-     * active and completed (if it causes camera device internal AE lock) precapture
-     * metering sequence can be canceled through setting
-     * ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER to CANCEL.</p>
-     * <p>Once PRECAPTURE completes, AE will transition to CONVERGED
-     * or FLASH_REQUIRED as appropriate. This is a transient
-     * state, the camera device may skip reporting this state in
-     * capture result.</p>
-     *
-     * @see ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER
-     */
-    ACAMERA_CONTROL_AE_STATE_PRECAPTURE                              = 5,
-
-} acamera_metadata_enum_android_control_ae_state_t;
-
-// ACAMERA_CONTROL_AF_STATE
-typedef enum acamera_metadata_enum_acamera_control_af_state {
-    /**
-     * <p>AF is off or has not yet tried to scan/been asked
-     * to scan.</p>
-     * <p>When a camera device is opened, it starts in this
-     * state. This is a transient state, the camera device may
-     * skip reporting this state in capture
-     * result.</p>
-     */
-    ACAMERA_CONTROL_AF_STATE_INACTIVE                                = 0,
-
-    /**
-     * <p>AF is currently performing an AF scan initiated the
-     * camera device in a continuous autofocus mode.</p>
-     * <p>Only used by CONTINUOUS_* AF modes. This is a transient
-     * state, the camera device may skip reporting this state in
-     * capture result.</p>
-     */
-    ACAMERA_CONTROL_AF_STATE_PASSIVE_SCAN                            = 1,
-
-    /**
-     * <p>AF currently believes it is in focus, but may
-     * restart scanning at any time.</p>
-     * <p>Only used by CONTINUOUS_* AF modes. This is a transient
-     * state, the camera device may skip reporting this state in
-     * capture result.</p>
-     */
-    ACAMERA_CONTROL_AF_STATE_PASSIVE_FOCUSED                         = 2,
-
-    /**
-     * <p>AF is performing an AF scan because it was
-     * triggered by AF trigger.</p>
-     * <p>Only used by AUTO or MACRO AF modes. This is a transient
-     * state, the camera device may skip reporting this state in
-     * capture result.</p>
-     */
-    ACAMERA_CONTROL_AF_STATE_ACTIVE_SCAN                             = 3,
-
-    /**
-     * <p>AF believes it is focused correctly and has locked
-     * focus.</p>
-     * <p>This state is reached only after an explicit START AF trigger has been
-     * sent (ACAMERA_CONTROL_AF_TRIGGER), when good focus has been obtained.</p>
-     * <p>The lens will remain stationary until the AF mode (ACAMERA_CONTROL_AF_MODE) is changed or
-     * a new AF trigger is sent to the camera device (ACAMERA_CONTROL_AF_TRIGGER).</p>
-     *
-     * @see ACAMERA_CONTROL_AF_MODE
-     * @see ACAMERA_CONTROL_AF_TRIGGER
-     */
-    ACAMERA_CONTROL_AF_STATE_FOCUSED_LOCKED                          = 4,
-
-    /**
-     * <p>AF has failed to focus successfully and has locked
-     * focus.</p>
-     * <p>This state is reached only after an explicit START AF trigger has been
-     * sent (ACAMERA_CONTROL_AF_TRIGGER), when good focus cannot be obtained.</p>
-     * <p>The lens will remain stationary until the AF mode (ACAMERA_CONTROL_AF_MODE) is changed or
-     * a new AF trigger is sent to the camera device (ACAMERA_CONTROL_AF_TRIGGER).</p>
-     *
-     * @see ACAMERA_CONTROL_AF_MODE
-     * @see ACAMERA_CONTROL_AF_TRIGGER
-     */
-    ACAMERA_CONTROL_AF_STATE_NOT_FOCUSED_LOCKED                      = 5,
-
-    /**
-     * <p>AF finished a passive scan without finding focus,
-     * and may restart scanning at any time.</p>
-     * <p>Only used by CONTINUOUS_* AF modes. This is a transient state, the camera
-     * device may skip reporting this state in capture result.</p>
-     * <p>LEGACY camera devices do not support this state. When a passive
-     * scan has finished, it will always go to PASSIVE_FOCUSED.</p>
-     */
-    ACAMERA_CONTROL_AF_STATE_PASSIVE_UNFOCUSED                       = 6,
-
-} acamera_metadata_enum_android_control_af_state_t;
-
-// ACAMERA_CONTROL_AWB_STATE
-typedef enum acamera_metadata_enum_acamera_control_awb_state {
-    /**
-     * <p>AWB is not in auto mode, or has not yet started metering.</p>
-     * <p>When a camera device is opened, it starts in this
-     * state. This is a transient state, the camera device may
-     * skip reporting this state in capture
-     * result.</p>
-     */
-    ACAMERA_CONTROL_AWB_STATE_INACTIVE                               = 0,
-
-    /**
-     * <p>AWB doesn't yet have a good set of control
-     * values for the current scene.</p>
-     * <p>This is a transient state, the camera device
-     * may skip reporting this state in capture result.</p>
-     */
-    ACAMERA_CONTROL_AWB_STATE_SEARCHING                              = 1,
-
-    /**
-     * <p>AWB has a good set of control values for the
-     * current scene.</p>
-     */
-    ACAMERA_CONTROL_AWB_STATE_CONVERGED                              = 2,
-
-    /**
-     * <p>AWB has been locked.</p>
-     */
-    ACAMERA_CONTROL_AWB_STATE_LOCKED                                 = 3,
-
-} acamera_metadata_enum_android_control_awb_state_t;
-
-// ACAMERA_CONTROL_AE_LOCK_AVAILABLE
-typedef enum acamera_metadata_enum_acamera_control_ae_lock_available {
-    ACAMERA_CONTROL_AE_LOCK_AVAILABLE_FALSE                          = 0,
-
-    ACAMERA_CONTROL_AE_LOCK_AVAILABLE_TRUE                           = 1,
-
-} acamera_metadata_enum_android_control_ae_lock_available_t;
-
-// ACAMERA_CONTROL_AWB_LOCK_AVAILABLE
-typedef enum acamera_metadata_enum_acamera_control_awb_lock_available {
-    ACAMERA_CONTROL_AWB_LOCK_AVAILABLE_FALSE                         = 0,
-
-    ACAMERA_CONTROL_AWB_LOCK_AVAILABLE_TRUE                          = 1,
-
-} acamera_metadata_enum_android_control_awb_lock_available_t;
-
-
-
-// ACAMERA_EDGE_MODE
-typedef enum acamera_metadata_enum_acamera_edge_mode {
-    /**
-     * <p>No edge enhancement is applied.</p>
-     */
-    ACAMERA_EDGE_MODE_OFF                                            = 0,
-
-    /**
-     * <p>Apply edge enhancement at a quality level that does not slow down frame rate
-     * relative to sensor output. It may be the same as OFF if edge enhancement will
-     * slow down frame rate relative to sensor.</p>
-     */
-    ACAMERA_EDGE_MODE_FAST                                           = 1,
-
-    /**
-     * <p>Apply high-quality edge enhancement, at a cost of possibly reduced output frame rate.</p>
-     */
-    ACAMERA_EDGE_MODE_HIGH_QUALITY                                   = 2,
-
-    /**
-     * <p>Edge enhancement is applied at different levels for different output streams,
-     * based on resolution. Streams at maximum recording resolution (see {@link
-     * ACameraDevice_createCaptureSession}) or below have
-     * edge enhancement applied, while higher-resolution streams have no edge enhancement
-     * applied. The level of edge enhancement for low-resolution streams is tuned so that
-     * frame rate is not impacted, and the quality is equal to or better than FAST (since it
-     * is only applied to lower-resolution outputs, quality may improve from FAST).</p>
-     * <p>This mode is intended to be used by applications operating in a zero-shutter-lag mode
-     * with YUV or PRIVATE reprocessing, where the application continuously captures
-     * high-resolution intermediate buffers into a circular buffer, from which a final image is
-     * produced via reprocessing when a user takes a picture.  For such a use case, the
-     * high-resolution buffers must not have edge enhancement applied to maximize efficiency of
-     * preview and to avoid double-applying enhancement when reprocessed, while low-resolution
-     * buffers (used for recording or preview, generally) need edge enhancement applied for
-     * reasonable preview quality.</p>
-     * <p>This mode is guaranteed to be supported by devices that support either the
-     * YUV_REPROCESSING or PRIVATE_REPROCESSING capabilities
-     * (ACAMERA_REQUEST_AVAILABLE_CAPABILITIES lists either of those capabilities) and it will
-     * be the default mode for CAMERA3_TEMPLATE_ZERO_SHUTTER_LAG template.</p>
-     *
-     * @see ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
-     */
-    ACAMERA_EDGE_MODE_ZERO_SHUTTER_LAG                               = 3,
-
-} acamera_metadata_enum_android_edge_mode_t;
-
-
-// ACAMERA_FLASH_MODE
-typedef enum acamera_metadata_enum_acamera_flash_mode {
-    /**
-     * <p>Do not fire the flash for this capture.</p>
-     */
-    ACAMERA_FLASH_MODE_OFF                                           = 0,
-
-    /**
-     * <p>If the flash is available and charged, fire flash
-     * for this capture.</p>
-     */
-    ACAMERA_FLASH_MODE_SINGLE                                        = 1,
-
-    /**
-     * <p>Transition flash to continuously on.</p>
-     */
-    ACAMERA_FLASH_MODE_TORCH                                         = 2,
-
-} acamera_metadata_enum_android_flash_mode_t;
-
-// ACAMERA_FLASH_STATE
-typedef enum acamera_metadata_enum_acamera_flash_state {
-    /**
-     * <p>No flash on camera.</p>
-     */
-    ACAMERA_FLASH_STATE_UNAVAILABLE                                  = 0,
-
-    /**
-     * <p>Flash is charging and cannot be fired.</p>
-     */
-    ACAMERA_FLASH_STATE_CHARGING                                     = 1,
-
-    /**
-     * <p>Flash is ready to fire.</p>
-     */
-    ACAMERA_FLASH_STATE_READY                                        = 2,
-
-    /**
-     * <p>Flash fired for this capture.</p>
-     */
-    ACAMERA_FLASH_STATE_FIRED                                        = 3,
-
-    /**
-     * <p>Flash partially illuminated this frame.</p>
-     * <p>This is usually due to the next or previous frame having
-     * the flash fire, and the flash spilling into this capture
-     * due to hardware limitations.</p>
-     */
-    ACAMERA_FLASH_STATE_PARTIAL                                      = 4,
-
-} acamera_metadata_enum_android_flash_state_t;
-
-
-// ACAMERA_FLASH_INFO_AVAILABLE
-typedef enum acamera_metadata_enum_acamera_flash_info_available {
-    ACAMERA_FLASH_INFO_AVAILABLE_FALSE                               = 0,
-
-    ACAMERA_FLASH_INFO_AVAILABLE_TRUE                                = 1,
-
-} acamera_metadata_enum_android_flash_info_available_t;
-
-
-// ACAMERA_HOT_PIXEL_MODE
-typedef enum acamera_metadata_enum_acamera_hot_pixel_mode {
-    /**
-     * <p>No hot pixel correction is applied.</p>
-     * <p>The frame rate must not be reduced relative to sensor raw output
-     * for this option.</p>
-     * <p>The hotpixel map may be returned in ACAMERA_STATISTICS_HOT_PIXEL_MAP.</p>
-     *
-     * @see ACAMERA_STATISTICS_HOT_PIXEL_MAP
-     */
-    ACAMERA_HOT_PIXEL_MODE_OFF                                       = 0,
-
-    /**
-     * <p>Hot pixel correction is applied, without reducing frame
-     * rate relative to sensor raw output.</p>
-     * <p>The hotpixel map may be returned in ACAMERA_STATISTICS_HOT_PIXEL_MAP.</p>
-     *
-     * @see ACAMERA_STATISTICS_HOT_PIXEL_MAP
-     */
-    ACAMERA_HOT_PIXEL_MODE_FAST                                      = 1,
-
-    /**
-     * <p>High-quality hot pixel correction is applied, at a cost
-     * of possibly reduced frame rate relative to sensor raw output.</p>
-     * <p>The hotpixel map may be returned in ACAMERA_STATISTICS_HOT_PIXEL_MAP.</p>
-     *
-     * @see ACAMERA_STATISTICS_HOT_PIXEL_MAP
-     */
-    ACAMERA_HOT_PIXEL_MODE_HIGH_QUALITY                              = 2,
-
-} acamera_metadata_enum_android_hot_pixel_mode_t;
-
-
-
-// ACAMERA_LENS_OPTICAL_STABILIZATION_MODE
-typedef enum acamera_metadata_enum_acamera_lens_optical_stabilization_mode {
-    /**
-     * <p>Optical stabilization is unavailable.</p>
-     */
-    ACAMERA_LENS_OPTICAL_STABILIZATION_MODE_OFF                      = 0,
-
-    /**
-     * <p>Optical stabilization is enabled.</p>
-     */
-    ACAMERA_LENS_OPTICAL_STABILIZATION_MODE_ON                       = 1,
-
-} acamera_metadata_enum_android_lens_optical_stabilization_mode_t;
-
-// ACAMERA_LENS_FACING
-typedef enum acamera_metadata_enum_acamera_lens_facing {
-    /**
-     * <p>The camera device faces the same direction as the device's screen.</p>
-     */
-    ACAMERA_LENS_FACING_FRONT                                        = 0,
-
-    /**
-     * <p>The camera device faces the opposite direction as the device's screen.</p>
-     */
-    ACAMERA_LENS_FACING_BACK                                         = 1,
-
-    /**
-     * <p>The camera device is an external camera, and has no fixed facing relative to the
-     * device's screen.</p>
-     */
-    ACAMERA_LENS_FACING_EXTERNAL                                     = 2,
-
-} acamera_metadata_enum_android_lens_facing_t;
-
-// ACAMERA_LENS_STATE
-typedef enum acamera_metadata_enum_acamera_lens_state {
-    /**
-     * <p>The lens parameters (ACAMERA_LENS_FOCAL_LENGTH, ACAMERA_LENS_FOCUS_DISTANCE,
-     * ACAMERA_LENS_FILTER_DENSITY and ACAMERA_LENS_APERTURE) are not changing.</p>
-     *
-     * @see ACAMERA_LENS_APERTURE
-     * @see ACAMERA_LENS_FILTER_DENSITY
-     * @see ACAMERA_LENS_FOCAL_LENGTH
-     * @see ACAMERA_LENS_FOCUS_DISTANCE
-     */
-    ACAMERA_LENS_STATE_STATIONARY                                    = 0,
-
-    /**
-     * <p>One or several of the lens parameters
-     * (ACAMERA_LENS_FOCAL_LENGTH, ACAMERA_LENS_FOCUS_DISTANCE,
-     * ACAMERA_LENS_FILTER_DENSITY or ACAMERA_LENS_APERTURE) is
-     * currently changing.</p>
-     *
-     * @see ACAMERA_LENS_APERTURE
-     * @see ACAMERA_LENS_FILTER_DENSITY
-     * @see ACAMERA_LENS_FOCAL_LENGTH
-     * @see ACAMERA_LENS_FOCUS_DISTANCE
-     */
-    ACAMERA_LENS_STATE_MOVING                                        = 1,
-
-} acamera_metadata_enum_android_lens_state_t;
-
-
-// ACAMERA_LENS_INFO_FOCUS_DISTANCE_CALIBRATION
-typedef enum acamera_metadata_enum_acamera_lens_info_focus_distance_calibration {
-    /**
-     * <p>The lens focus distance is not accurate, and the units used for
-     * ACAMERA_LENS_FOCUS_DISTANCE do not correspond to any physical units.</p>
-     * <p>Setting the lens to the same focus distance on separate occasions may
-     * result in a different real focus distance, depending on factors such
-     * as the orientation of the device, the age of the focusing mechanism,
-     * and the device temperature. The focus distance value will still be
-     * in the range of <code>[0, ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE]</code>, where 0
-     * represents the farthest focus.</p>
-     *
-     * @see ACAMERA_LENS_FOCUS_DISTANCE
-     * @see ACAMERA_LENS_INFO_MINIMUM_FOCUS_DISTANCE
-     */
-    ACAMERA_LENS_INFO_FOCUS_DISTANCE_CALIBRATION_UNCALIBRATED        = 0,
-
-    /**
-     * <p>The lens focus distance is measured in diopters.</p>
-     * <p>However, setting the lens to the same focus distance
-     * on separate occasions may result in a different real
-     * focus distance, depending on factors such as the
-     * orientation of the device, the age of the focusing
-     * mechanism, and the device temperature.</p>
-     */
-    ACAMERA_LENS_INFO_FOCUS_DISTANCE_CALIBRATION_APPROXIMATE         = 1,
-
-    /**
-     * <p>The lens focus distance is measured in diopters, and
-     * is calibrated.</p>
-     * <p>The lens mechanism is calibrated so that setting the
-     * same focus distance is repeatable on multiple
-     * occasions with good accuracy, and the focus distance
-     * corresponds to the real physical distance to the plane
-     * of best focus.</p>
-     */
-    ACAMERA_LENS_INFO_FOCUS_DISTANCE_CALIBRATION_CALIBRATED          = 2,
-
-} acamera_metadata_enum_android_lens_info_focus_distance_calibration_t;
-
-
-// ACAMERA_NOISE_REDUCTION_MODE
-typedef enum acamera_metadata_enum_acamera_noise_reduction_mode {
-    /**
-     * <p>No noise reduction is applied.</p>
-     */
-    ACAMERA_NOISE_REDUCTION_MODE_OFF                                 = 0,
-
-    /**
-     * <p>Noise reduction is applied without reducing frame rate relative to sensor
-     * output. It may be the same as OFF if noise reduction will reduce frame rate
-     * relative to sensor.</p>
-     */
-    ACAMERA_NOISE_REDUCTION_MODE_FAST                                = 1,
-
-    /**
-     * <p>High-quality noise reduction is applied, at the cost of possibly reduced frame
-     * rate relative to sensor output.</p>
-     */
-    ACAMERA_NOISE_REDUCTION_MODE_HIGH_QUALITY                        = 2,
-
-    /**
-     * <p>MINIMAL noise reduction is applied without reducing frame rate relative to
-     * sensor output. </p>
-     */
-    ACAMERA_NOISE_REDUCTION_MODE_MINIMAL                             = 3,
-
-    /**
-     * <p>Noise reduction is applied at different levels for different output streams,
-     * based on resolution. Streams at maximum recording resolution (see {@link
-     * ACameraDevice_createCaptureSession}) or below have noise
-     * reduction applied, while higher-resolution streams have MINIMAL (if supported) or no
-     * noise reduction applied (if MINIMAL is not supported.) The degree of noise reduction
-     * for low-resolution streams is tuned so that frame rate is not impacted, and the quality
-     * is equal to or better than FAST (since it is only applied to lower-resolution outputs,
-     * quality may improve from FAST).</p>
-     * <p>This mode is intended to be used by applications operating in a zero-shutter-lag mode
-     * with YUV or PRIVATE reprocessing, where the application continuously captures
-     * high-resolution intermediate buffers into a circular buffer, from which a final image is
-     * produced via reprocessing when a user takes a picture.  For such a use case, the
-     * high-resolution buffers must not have noise reduction applied to maximize efficiency of
-     * preview and to avoid over-applying noise filtering when reprocessing, while
-     * low-resolution buffers (used for recording or preview, generally) need noise reduction
-     * applied for reasonable preview quality.</p>
-     * <p>This mode is guaranteed to be supported by devices that support either the
-     * YUV_REPROCESSING or PRIVATE_REPROCESSING capabilities
-     * (ACAMERA_REQUEST_AVAILABLE_CAPABILITIES lists either of those capabilities) and it will
-     * be the default mode for CAMERA3_TEMPLATE_ZERO_SHUTTER_LAG template.</p>
-     *
-     * @see ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
-     */
-    ACAMERA_NOISE_REDUCTION_MODE_ZERO_SHUTTER_LAG                    = 4,
-
-} acamera_metadata_enum_android_noise_reduction_mode_t;
-
-
-
-// ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
-typedef enum acamera_metadata_enum_acamera_request_available_capabilities {
-    /**
-     * <p>The minimal set of capabilities that every camera
-     * device (regardless of ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL)
-     * supports.</p>
-     * <p>This capability is listed by all normal devices, and
-     * indicates that the camera device has a feature set
-     * that's comparable to the baseline requirements for the
-     * older android.hardware.Camera API.</p>
-     * <p>Devices with the DEPTH_OUTPUT capability might not list this
-     * capability, indicating that they support only depth measurement,
-     * not standard color output.</p>
-     *
-     * @see ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL
-     */
-    ACAMERA_REQUEST_AVAILABLE_CAPABILITIES_BACKWARD_COMPATIBLE       = 0,
-
-    /**
-     * <p>The camera device can be manually controlled (3A algorithms such
-     * as auto-exposure, and auto-focus can be bypassed).
-     * The camera device supports basic manual control of the sensor image
-     * acquisition related stages. This means the following controls are
-     * guaranteed to be supported:</p>
-     * <ul>
-     * <li>Manual frame duration control<ul>
-     * <li>ACAMERA_SENSOR_FRAME_DURATION</li>
-     * <li>ACAMERA_SENSOR_INFO_MAX_FRAME_DURATION</li>
-     * </ul>
-     * </li>
-     * <li>Manual exposure control<ul>
-     * <li>ACAMERA_SENSOR_EXPOSURE_TIME</li>
-     * <li>ACAMERA_SENSOR_INFO_EXPOSURE_TIME_RANGE</li>
-     * </ul>
-     * </li>
-     * <li>Manual sensitivity control<ul>
-     * <li>ACAMERA_SENSOR_SENSITIVITY</li>
-     * <li>ACAMERA_SENSOR_INFO_SENSITIVITY_RANGE</li>
-     * </ul>
-     * </li>
-     * <li>Manual lens control (if the lens is adjustable)<ul>
-     * <li>ACAMERA_LENS_*</li>
-     * </ul>
-     * </li>
-     * <li>Manual flash control (if a flash unit is present)<ul>
-     * <li>ACAMERA_FLASH_*</li>
-     * </ul>
-     * </li>
-     * <li>Manual black level locking<ul>
-     * <li>ACAMERA_BLACK_LEVEL_LOCK</li>
-     * </ul>
-     * </li>
-     * <li>Auto exposure lock<ul>
-     * <li>ACAMERA_CONTROL_AE_LOCK</li>
-     * </ul>
-     * </li>
-     * </ul>
-     * <p>If any of the above 3A algorithms are enabled, then the camera
-     * device will accurately report the values applied by 3A in the
-     * result.</p>
-     * <p>A given camera device may also support additional manual sensor controls,
-     * but this capability only covers the above list of controls.</p>
-     * <p>If this is supported, android.scaler.streamConfigurationMap will
-     * additionally return a min frame duration that is greater than
-     * zero for each supported size-format combination.</p>
-     *
-     * @see ACAMERA_BLACK_LEVEL_LOCK
-     * @see ACAMERA_CONTROL_AE_LOCK
-     * @see ACAMERA_SENSOR_EXPOSURE_TIME
-     * @see ACAMERA_SENSOR_FRAME_DURATION
-     * @see ACAMERA_SENSOR_INFO_EXPOSURE_TIME_RANGE
-     * @see ACAMERA_SENSOR_INFO_MAX_FRAME_DURATION
-     * @see ACAMERA_SENSOR_INFO_SENSITIVITY_RANGE
-     * @see ACAMERA_SENSOR_SENSITIVITY
-     */
-    ACAMERA_REQUEST_AVAILABLE_CAPABILITIES_MANUAL_SENSOR             = 1,
-
-    /**
-     * <p>The camera device post-processing stages can be manually controlled.
-     * The camera device supports basic manual control of the image post-processing
-     * stages. This means the following controls are guaranteed to be supported:</p>
-     * <ul>
-     * <li>
-     * <p>Manual tonemap control</p>
-     * <ul>
-     * <li>android.tonemap.curve</li>
-     * <li>ACAMERA_TONEMAP_MODE</li>
-     * <li>ACAMERA_TONEMAP_MAX_CURVE_POINTS</li>
-     * <li>ACAMERA_TONEMAP_GAMMA</li>
-     * <li>ACAMERA_TONEMAP_PRESET_CURVE</li>
-     * </ul>
-     * </li>
-     * <li>
-     * <p>Manual white balance control</p>
-     * <ul>
-     * <li>ACAMERA_COLOR_CORRECTION_TRANSFORM</li>
-     * <li>ACAMERA_COLOR_CORRECTION_GAINS</li>
-     * </ul>
-     * </li>
-     * <li>Manual lens shading map control<ul>
-     * <li>ACAMERA_SHADING_MODE</li>
-     * <li>ACAMERA_STATISTICS_LENS_SHADING_MAP_MODE</li>
-     * <li>ACAMERA_STATISTICS_LENS_SHADING_MAP</li>
-     * <li>ACAMERA_LENS_INFO_SHADING_MAP_SIZE</li>
-     * </ul>
-     * </li>
-     * <li>Manual aberration correction control (if aberration correction is supported)<ul>
-     * <li>ACAMERA_COLOR_CORRECTION_ABERRATION_MODE</li>
-     * <li>ACAMERA_COLOR_CORRECTION_AVAILABLE_ABERRATION_MODES</li>
-     * </ul>
-     * </li>
-     * <li>Auto white balance lock<ul>
-     * <li>ACAMERA_CONTROL_AWB_LOCK</li>
-     * </ul>
-     * </li>
-     * </ul>
-     * <p>If auto white balance is enabled, then the camera device
-     * will accurately report the values applied by AWB in the result.</p>
-     * <p>A given camera device may also support additional post-processing
-     * controls, but this capability only covers the above list of controls.</p>
-     *
-     * @see ACAMERA_COLOR_CORRECTION_ABERRATION_MODE
-     * @see ACAMERA_COLOR_CORRECTION_AVAILABLE_ABERRATION_MODES
-     * @see ACAMERA_COLOR_CORRECTION_GAINS
-     * @see ACAMERA_COLOR_CORRECTION_TRANSFORM
-     * @see ACAMERA_CONTROL_AWB_LOCK
-     * @see ACAMERA_LENS_INFO_SHADING_MAP_SIZE
-     * @see ACAMERA_SHADING_MODE
-     * @see ACAMERA_STATISTICS_LENS_SHADING_MAP
-     * @see ACAMERA_STATISTICS_LENS_SHADING_MAP_MODE
-     * @see ACAMERA_TONEMAP_GAMMA
-     * @see ACAMERA_TONEMAP_MAX_CURVE_POINTS
-     * @see ACAMERA_TONEMAP_MODE
-     * @see ACAMERA_TONEMAP_PRESET_CURVE
-     */
-    ACAMERA_REQUEST_AVAILABLE_CAPABILITIES_MANUAL_POST_PROCESSING    = 2,
-
-    /**
-     * <p>The camera device supports outputting RAW buffers and
-     * metadata for interpreting them.</p>
-     * <p>Devices supporting the RAW capability allow both for
-     * saving DNG files, and for direct application processing of
-     * raw sensor images.</p>
-     * <ul>
-     * <li>RAW_SENSOR is supported as an output format.</li>
-     * <li>The maximum available resolution for RAW_SENSOR streams
-     *   will match either the value in
-     *   ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE or
-     *   ACAMERA_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE.</li>
-     * <li>All DNG-related optional metadata entries are provided
-     *   by the camera device.</li>
-     * </ul>
-     *
-     * @see ACAMERA_SENSOR_INFO_PIXEL_ARRAY_SIZE
-     * @see ACAMERA_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE
-     */
-    ACAMERA_REQUEST_AVAILABLE_CAPABILITIES_RAW                       = 3,
-
-    /**
-     * <p>The camera device supports accurately reporting the sensor settings for many of
-     * the sensor controls while the built-in 3A algorithm is running.  This allows
-     * reporting of sensor settings even when these settings cannot be manually changed.</p>
-     * <p>The values reported for the following controls are guaranteed to be available
-     * in the CaptureResult, including when 3A is enabled:</p>
-     * <ul>
-     * <li>Exposure control<ul>
-     * <li>ACAMERA_SENSOR_EXPOSURE_TIME</li>
-     * </ul>
-     * </li>
-     * <li>Sensitivity control<ul>
-     * <li>ACAMERA_SENSOR_SENSITIVITY</li>
-     * </ul>
-     * </li>
-     * <li>Lens controls (if the lens is adjustable)<ul>
-     * <li>ACAMERA_LENS_FOCUS_DISTANCE</li>
-     * <li>ACAMERA_LENS_APERTURE</li>
-     * </ul>
-     * </li>
-     * </ul>
-     * <p>This capability is a subset of the MANUAL_SENSOR control capability, and will
-     * always be included if the MANUAL_SENSOR capability is available.</p>
-     *
-     * @see ACAMERA_LENS_APERTURE
-     * @see ACAMERA_LENS_FOCUS_DISTANCE
-     * @see ACAMERA_SENSOR_EXPOSURE_TIME
-     * @see ACAMERA_SENSOR_SENSITIVITY
-     */
-    ACAMERA_REQUEST_AVAILABLE_CAPABILITIES_READ_SENSOR_SETTINGS      = 5,
-
-    /**
-     * <p>The camera device supports capturing high-resolution images at &gt;= 20 frames per
-     * second, in at least the uncompressed YUV format, when post-processing settings are set
-     * to FAST. Additionally, maximum-resolution images can be captured at &gt;= 10 frames
-     * per second.  Here, 'high resolution' means at least 8 megapixels, or the maximum
-     * resolution of the device, whichever is smaller.</p>
-     * <p>More specifically, this means that at least one output {@link
-     * AIMAGE_FORMAT_YUV_420_888} size listed in
-     * {@link ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS} is larger or equal to the
-     * 'high resolution' defined above, and can be captured at at least 20 fps.
-     * For the largest {@link AIMAGE_FORMAT_YUV_420_888} size listed in
-     * {@link ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS}, camera device can capture this
-     * size for at least 10 frames per second.
-     * Also the ACAMERA_CONTROL_AE_AVAILABLE_TARGET_FPS_RANGES entry lists at least one FPS range
-     * where the minimum FPS is &gt;= 1 / minimumFrameDuration for the largest YUV_420_888 size.</p>
-     * <p>If the device supports the {@link AIMAGE_FORMAT_RAW10}, {@link
-     * AIMAGE_FORMAT_RAW12}, then those can also be captured at the same rate
-     * as the maximum-size YUV_420_888 resolution is.</p>
-     * <p>In addition, the ACAMERA_SYNC_MAX_LATENCY field is guaranted to have a value between 0
-     * and 4, inclusive. ACAMERA_CONTROL_AE_LOCK_AVAILABLE and ACAMERA_CONTROL_AWB_LOCK_AVAILABLE
-     * are also guaranteed to be <code>true</code> so burst capture with these two locks ON yields
-     * consistent image output.</p>
-     *
-     * @see ACAMERA_CONTROL_AE_AVAILABLE_TARGET_FPS_RANGES
-     * @see ACAMERA_CONTROL_AE_LOCK_AVAILABLE
-     * @see ACAMERA_CONTROL_AWB_LOCK_AVAILABLE
-     * @see ACAMERA_SYNC_MAX_LATENCY
-     */
-    ACAMERA_REQUEST_AVAILABLE_CAPABILITIES_BURST_CAPTURE             = 6,
-
-    /**
-     * <p>The camera device can produce depth measurements from its field of view.</p>
-     * <p>This capability requires the camera device to support the following:</p>
-     * <ul>
-     * <li>{@link AIMAGE_FORMAT_DEPTH16} is supported as an output format.</li>
-     * <li>{@link AIMAGE_FORMAT_DEPTH_POINT_CLOUD} is optionally supported as an
-     *   output format.</li>
-     * <li>This camera device, and all camera devices with the same ACAMERA_LENS_FACING,
-     *   will list the following calibration entries in {@link ACameraMetadata} from both
-     *   {@link ACameraManager_getCameraCharacteristics} and
-     *   {@link ACameraCaptureSession_captureCallback_result}:<ul>
-     * <li>ACAMERA_LENS_POSE_TRANSLATION</li>
-     * <li>ACAMERA_LENS_POSE_ROTATION</li>
-     * <li>ACAMERA_LENS_INTRINSIC_CALIBRATION</li>
-     * <li>ACAMERA_LENS_RADIAL_DISTORTION</li>
-     * </ul>
-     * </li>
-     * <li>The ACAMERA_DEPTH_DEPTH_IS_EXCLUSIVE entry is listed by this device.</li>
-     * <li>A LIMITED camera with only the DEPTH_OUTPUT capability does not have to support
-     *   normal YUV_420_888, JPEG, and PRIV-format outputs. It only has to support the DEPTH16
-     *   format.</li>
-     * </ul>
-     * <p>Generally, depth output operates at a slower frame rate than standard color capture,
-     * so the DEPTH16 and DEPTH_POINT_CLOUD formats will commonly have a stall duration that
-     * should be accounted for (see
-     * {@link ACAMERA_DEPTH_AVAILABLE_DEPTH_STALL_DURATIONS}).
-     * On a device that supports both depth and color-based output, to enable smooth preview,
-     * using a repeating burst is recommended, where a depth-output target is only included
-     * once every N frames, where N is the ratio between preview output rate and depth output
-     * rate, including depth stall time.</p>
-     *
-     * @see ACAMERA_DEPTH_DEPTH_IS_EXCLUSIVE
-     * @see ACAMERA_LENS_FACING
-     * @see ACAMERA_LENS_INTRINSIC_CALIBRATION
-     * @see ACAMERA_LENS_POSE_ROTATION
-     * @see ACAMERA_LENS_POSE_TRANSLATION
-     * @see ACAMERA_LENS_RADIAL_DISTORTION
-     */
-    ACAMERA_REQUEST_AVAILABLE_CAPABILITIES_DEPTH_OUTPUT              = 8,
-
-} acamera_metadata_enum_android_request_available_capabilities_t;
-
-
-// ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS
-typedef enum acamera_metadata_enum_acamera_scaler_available_stream_configurations {
-    ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS_OUTPUT            = 0,
-
-    ACAMERA_SCALER_AVAILABLE_STREAM_CONFIGURATIONS_INPUT             = 1,
-
-} acamera_metadata_enum_android_scaler_available_stream_configurations_t;
-
-// ACAMERA_SCALER_CROPPING_TYPE
-typedef enum acamera_metadata_enum_acamera_scaler_cropping_type {
-    /**
-     * <p>The camera device only supports centered crop regions.</p>
-     */
-    ACAMERA_SCALER_CROPPING_TYPE_CENTER_ONLY                         = 0,
-
-    /**
-     * <p>The camera device supports arbitrarily chosen crop regions.</p>
-     */
-    ACAMERA_SCALER_CROPPING_TYPE_FREEFORM                            = 1,
-
-} acamera_metadata_enum_android_scaler_cropping_type_t;
-
-
-// ACAMERA_SENSOR_REFERENCE_ILLUMINANT1
-typedef enum acamera_metadata_enum_acamera_sensor_reference_illuminant1 {
-    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_DAYLIGHT                    = 1,
-
-    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_FLUORESCENT                 = 2,
-
-    /**
-     * <p>Incandescent light</p>
-     */
-    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_TUNGSTEN                    = 3,
-
-    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_FLASH                       = 4,
-
-    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_FINE_WEATHER                = 9,
-
-    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_CLOUDY_WEATHER              = 10,
-
-    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_SHADE                       = 11,
-
-    /**
-     * <p>D 5700 - 7100K</p>
-     */
-    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_DAYLIGHT_FLUORESCENT        = 12,
-
-    /**
-     * <p>N 4600 - 5400K</p>
-     */
-    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_DAY_WHITE_FLUORESCENT       = 13,
-
-    /**
-     * <p>W 3900 - 4500K</p>
-     */
-    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_COOL_WHITE_FLUORESCENT      = 14,
-
-    /**
-     * <p>WW 3200 - 3700K</p>
-     */
-    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_WHITE_FLUORESCENT           = 15,
-
-    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_STANDARD_A                  = 17,
-
-    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_STANDARD_B                  = 18,
-
-    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_STANDARD_C                  = 19,
-
-    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_D55                         = 20,
-
-    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_D65                         = 21,
-
-    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_D75                         = 22,
-
-    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_D50                         = 23,
-
-    ACAMERA_SENSOR_REFERENCE_ILLUMINANT1_ISO_STUDIO_TUNGSTEN         = 24,
-
-} acamera_metadata_enum_android_sensor_reference_illuminant1_t;
-
-// ACAMERA_SENSOR_TEST_PATTERN_MODE
-typedef enum acamera_metadata_enum_acamera_sensor_test_pattern_mode {
-    /**
-     * <p>No test pattern mode is used, and the camera
-     * device returns captures from the image sensor.</p>
-     * <p>This is the default if the key is not set.</p>
-     */
-    ACAMERA_SENSOR_TEST_PATTERN_MODE_OFF                             = 0,
-
-    /**
-     * <p>Each pixel in <code>[R, G_even, G_odd, B]</code> is replaced by its
-     * respective color channel provided in
-     * ACAMERA_SENSOR_TEST_PATTERN_DATA.</p>
-     * <p>For example:</p>
-     * <pre><code>android.testPatternData = [0, 0xFFFFFFFF, 0xFFFFFFFF, 0]
-     * </code></pre>
-     * <p>All green pixels are 100% green. All red/blue pixels are black.</p>
-     * <pre><code>android.testPatternData = [0xFFFFFFFF, 0, 0xFFFFFFFF, 0]
-     * </code></pre>
-     * <p>All red pixels are 100% red. Only the odd green pixels
-     * are 100% green. All blue pixels are 100% black.</p>
-     *
-     * @see ACAMERA_SENSOR_TEST_PATTERN_DATA
-     */
-    ACAMERA_SENSOR_TEST_PATTERN_MODE_SOLID_COLOR                     = 1,
-
-    /**
-     * <p>All pixel data is replaced with an 8-bar color pattern.</p>
-     * <p>The vertical bars (left-to-right) are as follows:</p>
-     * <ul>
-     * <li>100% white</li>
-     * <li>yellow</li>
-     * <li>cyan</li>
-     * <li>green</li>
-     * <li>magenta</li>
-     * <li>red</li>
-     * <li>blue</li>
-     * <li>black</li>
-     * </ul>
-     * <p>In general the image would look like the following:</p>
-     * <pre><code>W Y C G M R B K
-     * W Y C G M R B K
-     * W Y C G M R B K
-     * W Y C G M R B K
-     * W Y C G M R B K
-     * . . . . . . . .
-     * . . . . . . . .
-     * . . . . . . . .
-     *
-     * (B = Blue, K = Black)
-     * </code></pre>
-     * <p>Each bar should take up 1/8 of the sensor pixel array width.
-     * When this is not possible, the bar size should be rounded
-     * down to the nearest integer and the pattern can repeat
-     * on the right side.</p>
-     * <p>Each bar's height must always take up the full sensor
-     * pixel array height.</p>
-     * <p>Each pixel in this test pattern must be set to either
-     * 0% intensity or 100% intensity.</p>
-     */
-    ACAMERA_SENSOR_TEST_PATTERN_MODE_COLOR_BARS                      = 2,
-
-    /**
-     * <p>The test pattern is similar to COLOR_BARS, except that
-     * each bar should start at its specified color at the top,
-     * and fade to gray at the bottom.</p>
-     * <p>Furthermore each bar is further subdivided into a left and
-     * right half. The left half should have a smooth gradient,
-     * and the right half should have a quantized gradient.</p>
-     * <p>In particular, the right half's should consist of blocks of the
-     * same color for 1/16th active sensor pixel array width.</p>
-     * <p>The least significant bits in the quantized gradient should
-     * be copied from the most significant bits of the smooth gradient.</p>
-     * <p>The height of each bar should always be a multiple of 128.
-     * When this is not the case, the pattern should repeat at the bottom
-     * of the image.</p>
-     */
-    ACAMERA_SENSOR_TEST_PATTERN_MODE_COLOR_BARS_FADE_TO_GRAY         = 3,
-
-    /**
-     * <p>All pixel data is replaced by a pseudo-random sequence
-     * generated from a PN9 512-bit sequence (typically implemented
-     * in hardware with a linear feedback shift register).</p>
-     * <p>The generator should be reset at the beginning of each frame,
-     * and thus each subsequent raw frame with this test pattern should
-     * be exactly the same as the last.</p>
-     */
-    ACAMERA_SENSOR_TEST_PATTERN_MODE_PN9                             = 4,
-
-    /**
-     * <p>The first custom test pattern. All custom patterns that are
-     * available only on this camera device are at least this numeric
-     * value.</p>
-     * <p>All of the custom test patterns will be static
-     * (that is the raw image must not vary from frame to frame).</p>
-     */
-    ACAMERA_SENSOR_TEST_PATTERN_MODE_CUSTOM1                         = 256,
-
-} acamera_metadata_enum_android_sensor_test_pattern_mode_t;
-
-
-// ACAMERA_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT
-typedef enum acamera_metadata_enum_acamera_sensor_info_color_filter_arrangement {
-    ACAMERA_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_RGGB                = 0,
-
-    ACAMERA_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_GRBG                = 1,
-
-    ACAMERA_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_GBRG                = 2,
-
-    ACAMERA_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_BGGR                = 3,
-
-    /**
-     * <p>Sensor is not Bayer; output has 3 16-bit
-     * values for each pixel, instead of just 1 16-bit value
-     * per pixel.</p>
-     */
-    ACAMERA_SENSOR_INFO_COLOR_FILTER_ARRANGEMENT_RGB                 = 4,
-
-} acamera_metadata_enum_android_sensor_info_color_filter_arrangement_t;
-
-// ACAMERA_SENSOR_INFO_TIMESTAMP_SOURCE
-typedef enum acamera_metadata_enum_acamera_sensor_info_timestamp_source {
-    /**
-     * <p>Timestamps from ACAMERA_SENSOR_TIMESTAMP are in nanoseconds and monotonic,
-     * but can not be compared to timestamps from other subsystems
-     * (e.g. accelerometer, gyro etc.), or other instances of the same or different
-     * camera devices in the same system. Timestamps between streams and results for
-     * a single camera instance are comparable, and the timestamps for all buffers
-     * and the result metadata generated by a single capture are identical.</p>
-     *
-     * @see ACAMERA_SENSOR_TIMESTAMP
-     */
-    ACAMERA_SENSOR_INFO_TIMESTAMP_SOURCE_UNKNOWN                     = 0,
-
-    /**
-     * <p>Timestamps from ACAMERA_SENSOR_TIMESTAMP are in the same timebase as
-     * <a href="https://developer.android.com/reference/android/os/SystemClock.html#elapsedRealtimeNanos">elapsedRealtimeNanos</a>
-     * (or CLOCK_BOOTTIME), and they can be compared to other timestamps using that base.</p>
-     *
-     * @see ACAMERA_SENSOR_TIMESTAMP
-     */
-    ACAMERA_SENSOR_INFO_TIMESTAMP_SOURCE_REALTIME                    = 1,
-
-} acamera_metadata_enum_android_sensor_info_timestamp_source_t;
-
-// ACAMERA_SENSOR_INFO_LENS_SHADING_APPLIED
-typedef enum acamera_metadata_enum_acamera_sensor_info_lens_shading_applied {
-    ACAMERA_SENSOR_INFO_LENS_SHADING_APPLIED_FALSE                   = 0,
-
-    ACAMERA_SENSOR_INFO_LENS_SHADING_APPLIED_TRUE                    = 1,
-
-} acamera_metadata_enum_android_sensor_info_lens_shading_applied_t;
-
-
-// ACAMERA_SHADING_MODE
-typedef enum acamera_metadata_enum_acamera_shading_mode {
-    /**
-     * <p>No lens shading correction is applied.</p>
-     */
-    ACAMERA_SHADING_MODE_OFF                                         = 0,
-
-    /**
-     * <p>Apply lens shading corrections, without slowing
-     * frame rate relative to sensor raw output</p>
-     */
-    ACAMERA_SHADING_MODE_FAST                                        = 1,
-
-    /**
-     * <p>Apply high-quality lens shading correction, at the
-     * cost of possibly reduced frame rate.</p>
-     */
-    ACAMERA_SHADING_MODE_HIGH_QUALITY                                = 2,
-
-} acamera_metadata_enum_android_shading_mode_t;
-
-
-// ACAMERA_STATISTICS_FACE_DETECT_MODE
-typedef enum acamera_metadata_enum_acamera_statistics_face_detect_mode {
-    /**
-     * <p>Do not include face detection statistics in capture
-     * results.</p>
-     */
-    ACAMERA_STATISTICS_FACE_DETECT_MODE_OFF                          = 0,
-
-    /**
-     * <p>Return face rectangle and confidence values only.</p>
-     */
-    ACAMERA_STATISTICS_FACE_DETECT_MODE_SIMPLE                       = 1,
-
-    /**
-     * <p>Return all face
-     * metadata.</p>
-     * <p>In this mode, face rectangles, scores, landmarks, and face IDs are all valid.</p>
-     */
-    ACAMERA_STATISTICS_FACE_DETECT_MODE_FULL                         = 2,
-
-} acamera_metadata_enum_android_statistics_face_detect_mode_t;
-
-// ACAMERA_STATISTICS_HOT_PIXEL_MAP_MODE
-typedef enum acamera_metadata_enum_acamera_statistics_hot_pixel_map_mode {
-    /**
-     * <p>Hot pixel map production is disabled.</p>
-     */
-    ACAMERA_STATISTICS_HOT_PIXEL_MAP_MODE_OFF                        = 0,
-
-    /**
-     * <p>Hot pixel map production is enabled.</p>
-     */
-    ACAMERA_STATISTICS_HOT_PIXEL_MAP_MODE_ON                         = 1,
-
-} acamera_metadata_enum_android_statistics_hot_pixel_map_mode_t;
-
-// ACAMERA_STATISTICS_SCENE_FLICKER
-typedef enum acamera_metadata_enum_acamera_statistics_scene_flicker {
-    /**
-     * <p>The camera device does not detect any flickering illumination
-     * in the current scene.</p>
-     */
-    ACAMERA_STATISTICS_SCENE_FLICKER_NONE                            = 0,
-
-    /**
-     * <p>The camera device detects illumination flickering at 50Hz
-     * in the current scene.</p>
-     */
-    ACAMERA_STATISTICS_SCENE_FLICKER_50HZ                            = 1,
-
-    /**
-     * <p>The camera device detects illumination flickering at 60Hz
-     * in the current scene.</p>
-     */
-    ACAMERA_STATISTICS_SCENE_FLICKER_60HZ                            = 2,
-
-} acamera_metadata_enum_android_statistics_scene_flicker_t;
-
-// ACAMERA_STATISTICS_LENS_SHADING_MAP_MODE
-typedef enum acamera_metadata_enum_acamera_statistics_lens_shading_map_mode {
-    /**
-     * <p>Do not include a lens shading map in the capture result.</p>
-     */
-    ACAMERA_STATISTICS_LENS_SHADING_MAP_MODE_OFF                     = 0,
-
-    /**
-     * <p>Include a lens shading map in the capture result.</p>
-     */
-    ACAMERA_STATISTICS_LENS_SHADING_MAP_MODE_ON                      = 1,
-
-} acamera_metadata_enum_android_statistics_lens_shading_map_mode_t;
-
-
-
-// ACAMERA_TONEMAP_MODE
-typedef enum acamera_metadata_enum_acamera_tonemap_mode {
-    /**
-     * <p>Use the tone mapping curve specified in
-     * the ACAMERA_TONEMAPCURVE_* entries.</p>
-     * <p>All color enhancement and tonemapping must be disabled, except
-     * for applying the tonemapping curve specified by
-     * android.tonemap.curve.</p>
-     * <p>Must not slow down frame rate relative to raw
-     * sensor output.</p>
-     */
-    ACAMERA_TONEMAP_MODE_CONTRAST_CURVE                              = 0,
-
-    /**
-     * <p>Advanced gamma mapping and color enhancement may be applied, without
-     * reducing frame rate compared to raw sensor output.</p>
-     */
-    ACAMERA_TONEMAP_MODE_FAST                                        = 1,
-
-    /**
-     * <p>High-quality gamma mapping and color enhancement will be applied, at
-     * the cost of possibly reduced frame rate compared to raw sensor output.</p>
-     */
-    ACAMERA_TONEMAP_MODE_HIGH_QUALITY                                = 2,
-
-    /**
-     * <p>Use the gamma value specified in ACAMERA_TONEMAP_GAMMA to peform
-     * tonemapping.</p>
-     * <p>All color enhancement and tonemapping must be disabled, except
-     * for applying the tonemapping curve specified by ACAMERA_TONEMAP_GAMMA.</p>
-     * <p>Must not slow down frame rate relative to raw sensor output.</p>
-     *
-     * @see ACAMERA_TONEMAP_GAMMA
-     */
-    ACAMERA_TONEMAP_MODE_GAMMA_VALUE                                 = 3,
-
-    /**
-     * <p>Use the preset tonemapping curve specified in
-     * ACAMERA_TONEMAP_PRESET_CURVE to peform tonemapping.</p>
-     * <p>All color enhancement and tonemapping must be disabled, except
-     * for applying the tonemapping curve specified by
-     * ACAMERA_TONEMAP_PRESET_CURVE.</p>
-     * <p>Must not slow down frame rate relative to raw sensor output.</p>
-     *
-     * @see ACAMERA_TONEMAP_PRESET_CURVE
-     */
-    ACAMERA_TONEMAP_MODE_PRESET_CURVE                                = 4,
-
-} acamera_metadata_enum_android_tonemap_mode_t;
-
-// ACAMERA_TONEMAP_PRESET_CURVE
-typedef enum acamera_metadata_enum_acamera_tonemap_preset_curve {
-    /**
-     * <p>Tonemapping curve is defined by sRGB</p>
-     */
-    ACAMERA_TONEMAP_PRESET_CURVE_SRGB                                = 0,
-
-    /**
-     * <p>Tonemapping curve is defined by ITU-R BT.709</p>
-     */
-    ACAMERA_TONEMAP_PRESET_CURVE_REC709                              = 1,
-
-} acamera_metadata_enum_android_tonemap_preset_curve_t;
-
-
-
-// ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL
-typedef enum acamera_metadata_enum_acamera_info_supported_hardware_level {
-    /**
-     * <p>This camera device does not have enough capabilities to qualify as a <code>FULL</code> device or
-     * better.</p>
-     * <p>Only the stream configurations listed in the <code>LEGACY</code> and <code>LIMITED</code> tables in the
-     * {@link ACameraDevice_createCaptureSession} documentation are guaranteed to be supported.</p>
-     * <p>All <code>LIMITED</code> devices support the <code>BACKWARDS_COMPATIBLE</code> capability, indicating basic
-     * support for color image capture. The only exception is that the device may
-     * alternatively support only the <code>DEPTH_OUTPUT</code> capability, if it can only output depth
-     * measurements and not color images.</p>
-     * <p><code>LIMITED</code> devices and above require the use of ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER
-     * to lock exposure metering (and calculate flash power, for cameras with flash) before
-     * capturing a high-quality still image.</p>
-     * <p>A <code>LIMITED</code> device that only lists the <code>BACKWARDS_COMPATIBLE</code> capability is only
-     * required to support full-automatic operation and post-processing (<code>OFF</code> is not
-     * supported for ACAMERA_CONTROL_AE_MODE, ACAMERA_CONTROL_AF_MODE, or
-     * ACAMERA_CONTROL_AWB_MODE)</p>
-     * <p>Additional capabilities may optionally be supported by a <code>LIMITED</code>-level device, and
-     * can be checked for in ACAMERA_REQUEST_AVAILABLE_CAPABILITIES.</p>
-     *
-     * @see ACAMERA_CONTROL_AE_MODE
-     * @see ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER
-     * @see ACAMERA_CONTROL_AF_MODE
-     * @see ACAMERA_CONTROL_AWB_MODE
-     * @see ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
-     */
-    ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED                    = 0,
-
-    /**
-     * <p>This camera device is capable of supporting advanced imaging applications.</p>
-     * <p>The stream configurations listed in the <code>FULL</code>, <code>LEGACY</code> and <code>LIMITED</code> tables in the
-     * {@link ACameraDevice_createCaptureSession} documentation are guaranteed to be supported.</p>
-     * <p>A <code>FULL</code> device will support below capabilities:</p>
-     * <ul>
-     * <li><code>BURST_CAPTURE</code> capability (ACAMERA_REQUEST_AVAILABLE_CAPABILITIES contains
-     *   <code>BURST_CAPTURE</code>)</li>
-     * <li>Per frame control (ACAMERA_SYNC_MAX_LATENCY <code>==</code> PER_FRAME_CONTROL)</li>
-     * <li>Manual sensor control (ACAMERA_REQUEST_AVAILABLE_CAPABILITIES contains <code>MANUAL_SENSOR</code>)</li>
-     * <li>Manual post-processing control (ACAMERA_REQUEST_AVAILABLE_CAPABILITIES contains
-     *   <code>MANUAL_POST_PROCESSING</code>)</li>
-     * <li>The required exposure time range defined in ACAMERA_SENSOR_INFO_EXPOSURE_TIME_RANGE</li>
-     * <li>The required maxFrameDuration defined in ACAMERA_SENSOR_INFO_MAX_FRAME_DURATION</li>
-     * </ul>
-     * <p>Note:
-     * Pre-API level 23, FULL devices also supported arbitrary cropping region
-     * (ACAMERA_SCALER_CROPPING_TYPE <code>== FREEFORM</code>); this requirement was relaxed in API level
-     * 23, and <code>FULL</code> devices may only support <code>CENTERED</code> cropping.</p>
-     *
-     * @see ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
-     * @see ACAMERA_SCALER_CROPPING_TYPE
-     * @see ACAMERA_SENSOR_INFO_EXPOSURE_TIME_RANGE
-     * @see ACAMERA_SENSOR_INFO_MAX_FRAME_DURATION
-     * @see ACAMERA_SYNC_MAX_LATENCY
-     */
-    ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL_FULL                       = 1,
-
-    /**
-     * <p>This camera device is running in backward compatibility mode.</p>
-     * <p>Only the stream configurations listed in the <code>LEGACY</code> table in the {@link
-     * ACameraDevice_createCaptureSession} documentation are supported.</p>
-     * <p>A <code>LEGACY</code> device does not support per-frame control, manual sensor control, manual
-     * post-processing, arbitrary cropping regions, and has relaxed performance constraints.
-     * No additional capabilities beyond <code>BACKWARD_COMPATIBLE</code> will ever be listed by a
-     * <code>LEGACY</code> device in ACAMERA_REQUEST_AVAILABLE_CAPABILITIES.</p>
-     * <p>In addition, the ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER is not functional on <code>LEGACY</code>
-     * devices. Instead, every request that includes a JPEG-format output target is treated
-     * as triggering a still capture, internally executing a precapture trigger.  This may
-     * fire the flash for flash power metering during precapture, and then fire the flash
-     * for the final capture, if a flash is available on the device and the AE mode is set to
-     * enable the flash.</p>
-     *
-     * @see ACAMERA_CONTROL_AE_PRECAPTURE_TRIGGER
-     * @see ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
-     */
-    ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL_LEGACY                     = 2,
-
-    /**
-     * <p>This camera device is capable of YUV reprocessing and RAW data capture, in addition to
-     * FULL-level capabilities.</p>
-     * <p>The stream configurations listed in the <code>LEVEL_3</code>, <code>RAW</code>, <code>FULL</code>, <code>LEGACY</code> and
-     * <code>LIMITED</code> tables in the {@link
-     * ACameraDevice_createCaptureSession}
-     * documentation are guaranteed to be supported.</p>
-     * <p>The following additional capabilities are guaranteed to be supported:</p>
-     * <ul>
-     * <li><code>YUV_REPROCESSING</code> capability (ACAMERA_REQUEST_AVAILABLE_CAPABILITIES contains
-     *   <code>YUV_REPROCESSING</code>)</li>
-     * <li><code>RAW</code> capability (ACAMERA_REQUEST_AVAILABLE_CAPABILITIES contains
-     *   <code>RAW</code>)</li>
-     * </ul>
-     *
-     * @see ACAMERA_REQUEST_AVAILABLE_CAPABILITIES
-     */
-    ACAMERA_INFO_SUPPORTED_HARDWARE_LEVEL_3                          = 3,
-
-} acamera_metadata_enum_android_info_supported_hardware_level_t;
-
-
-// ACAMERA_BLACK_LEVEL_LOCK
-typedef enum acamera_metadata_enum_acamera_black_level_lock {
-    ACAMERA_BLACK_LEVEL_LOCK_OFF                                     = 0,
-
-    ACAMERA_BLACK_LEVEL_LOCK_ON                                      = 1,
-
-} acamera_metadata_enum_android_black_level_lock_t;
-
-
-// ACAMERA_SYNC_FRAME_NUMBER
-typedef enum acamera_metadata_enum_acamera_sync_frame_number {
-    /**
-     * <p>The current result is not yet fully synchronized to any request.</p>
-     * <p>Synchronization is in progress, and reading metadata from this
-     * result may include a mix of data that have taken effect since the
-     * last synchronization time.</p>
-     * <p>In some future result, within ACAMERA_SYNC_MAX_LATENCY frames,
-     * this value will update to the actual frame number frame number
-     * the result is guaranteed to be synchronized to (as long as the
-     * request settings remain constant).</p>
-     *
-     * @see ACAMERA_SYNC_MAX_LATENCY
-     */
-    ACAMERA_SYNC_FRAME_NUMBER_CONVERGING                             = -1,
-
-    /**
-     * <p>The current result's synchronization status is unknown.</p>
-     * <p>The result may have already converged, or it may be in
-     * progress.  Reading from this result may include some mix
-     * of settings from past requests.</p>
-     * <p>After a settings change, the new settings will eventually all
-     * take effect for the output buffers and results. However, this
-     * value will not change when that happens. Altering settings
-     * rapidly may provide outcomes using mixes of settings from recent
-     * requests.</p>
-     * <p>This value is intended primarily for backwards compatibility with
-     * the older camera implementations (for android.hardware.Camera).</p>
-     */
-    ACAMERA_SYNC_FRAME_NUMBER_UNKNOWN                                = -2,
-
-} acamera_metadata_enum_android_sync_frame_number_t;
-
-// ACAMERA_SYNC_MAX_LATENCY
-typedef enum acamera_metadata_enum_acamera_sync_max_latency {
-    /**
-     * <p>Every frame has the requests immediately applied.</p>
-     * <p>Changing controls over multiple requests one after another will
-     * produce results that have those controls applied atomically
-     * each frame.</p>
-     * <p>All FULL capability devices will have this as their maxLatency.</p>
-     */
-    ACAMERA_SYNC_MAX_LATENCY_PER_FRAME_CONTROL                       = 0,
-
-    /**
-     * <p>Each new frame has some subset (potentially the entire set)
-     * of the past requests applied to the camera settings.</p>
-     * <p>By submitting a series of identical requests, the camera device
-     * will eventually have the camera settings applied, but it is
-     * unknown when that exact point will be.</p>
-     * <p>All LEGACY capability devices will have this as their maxLatency.</p>
-     */
-    ACAMERA_SYNC_MAX_LATENCY_UNKNOWN                                 = -1,
-
-} acamera_metadata_enum_android_sync_max_latency_t;
-
-
-
-// ACAMERA_DEPTH_AVAILABLE_DEPTH_STREAM_CONFIGURATIONS
-typedef enum acamera_metadata_enum_acamera_depth_available_depth_stream_configurations {
-    ACAMERA_DEPTH_AVAILABLE_DEPTH_STREAM_CONFIGURATIONS_OUTPUT       = 0,
-
-    ACAMERA_DEPTH_AVAILABLE_DEPTH_STREAM_CONFIGURATIONS_INPUT        = 1,
-
-} acamera_metadata_enum_android_depth_available_depth_stream_configurations_t;
-
-// ACAMERA_DEPTH_DEPTH_IS_EXCLUSIVE
-typedef enum acamera_metadata_enum_acamera_depth_depth_is_exclusive {
-    ACAMERA_DEPTH_DEPTH_IS_EXCLUSIVE_FALSE                           = 0,
-
-    ACAMERA_DEPTH_DEPTH_IS_EXCLUSIVE_TRUE                            = 1,
-
-} acamera_metadata_enum_android_depth_depth_is_exclusive_t;
-
-#endif /* __ANDROID_API__ >= 24 */
-
-__END_DECLS
-
-#endif /* _NDK_CAMERA_METADATA_TAGS_H */
-
-/** @} */
diff --git a/include/cpustats b/include/cpustats
new file mode 120000
index 0000000..4a02d41
--- /dev/null
+++ b/include/cpustats
@@ -0,0 +1 @@
+../media/libcpustats/include/cpustats/
\ No newline at end of file
diff --git a/include/drm/drm_framework_common.h b/include/drm/drm_framework_common.h
index 0750406..d75f71c 100644
--- a/include/drm/drm_framework_common.h
+++ b/include/drm/drm_framework_common.h
@@ -234,10 +234,6 @@
      * POSIX based Decrypt API set for container based DRM
      */
     static const int CONTAINER_BASED = 0x02;
-    /**
-     * Decrypt API for Widevine streams
-     */
-    static const int WV_BASED = 0x3;
 };
 
 /**
diff --git a/include/media/AVSyncSettings.h b/include/media/AVSyncSettings.h
new file mode 120000
index 0000000..4b48419
--- /dev/null
+++ b/include/media/AVSyncSettings.h
@@ -0,0 +1 @@
+../../media/libmedia/include/AVSyncSettings.h
\ No newline at end of file
diff --git a/include/media/AudioBufferProvider.h b/include/media/AudioBufferProvider.h
new file mode 120000
index 0000000..dd7e234
--- /dev/null
+++ b/include/media/AudioBufferProvider.h
@@ -0,0 +1 @@
+../../media/libaudioclient/include/AudioBufferProvider.h
\ No newline at end of file
diff --git a/include/media/AudioEffect.h b/include/media/AudioEffect.h
deleted file mode 100644
index 7f6ccac..0000000
--- a/include/media/AudioEffect.h
+++ /dev/null
@@ -1,488 +0,0 @@
-/*
- * Copyright (C) 2009 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_AUDIOEFFECT_H
-#define ANDROID_AUDIOEFFECT_H
-
-#include <stdint.h>
-#include <sys/types.h>
-
-#include <media/IAudioFlinger.h>
-#include <media/IAudioPolicyService.h>
-#include <media/IEffect.h>
-#include <media/IEffectClient.h>
-#include <hardware/audio_effect.h>
-#include <media/AudioSystem.h>
-
-#include <utils/RefBase.h>
-#include <utils/Errors.h>
-#include <binder/IInterface.h>
-
-
-namespace android {
-
-// ----------------------------------------------------------------------------
-
-struct effect_param_cblk_t;
-
-// ----------------------------------------------------------------------------
-
-class AudioEffect : public RefBase
-{
-public:
-
-    /*
-     *  Static methods for effects enumeration.
-     */
-
-    /*
-     * Returns the number of effects available. This method together
-     * with queryEffect() is used to enumerate all effects:
-     * The enumeration sequence is:
-     *      queryNumberEffects(&num_effects);
-     *      for (i = 0; i < num_effects; i++)
-     *          queryEffect(i,...);
-     *
-     * Parameters:
-     *      numEffects:    address where the number of effects should be returned.
-     *
-     * Returned status (from utils/Errors.h) can be:
-     *      NO_ERROR   successful operation.
-     *      PERMISSION_DENIED could not get AudioFlinger interface
-     *      NO_INIT    effect library failed to initialize
-     *      BAD_VALUE  invalid numEffects pointer
-     *
-     * Returned value
-     *   *numEffects:     updated with number of effects available
-     */
-    static status_t queryNumberEffects(uint32_t *numEffects);
-
-    /*
-     * Returns an effect descriptor during effect
-     * enumeration.
-     *
-     * Parameters:
-     *      index:      index of the queried effect.
-     *      descriptor: address where the effect descriptor should be returned.
-     *
-     * Returned status (from utils/Errors.h) can be:
-     *      NO_ERROR        successful operation.
-     *      PERMISSION_DENIED could not get AudioFlinger interface
-     *      NO_INIT         effect library failed to initialize
-     *      BAD_VALUE       invalid descriptor pointer or index
-     *      INVALID_OPERATION  effect list has changed since last execution of queryNumberEffects()
-     *
-     * Returned value
-     *   *descriptor:     updated with effect descriptor
-     */
-    static status_t queryEffect(uint32_t index, effect_descriptor_t *descriptor);
-
-
-    /*
-     * Returns the descriptor for the specified effect uuid.
-     *
-     * Parameters:
-     *      uuid:       pointer to effect uuid.
-     *      descriptor: address where the effect descriptor should be returned.
-     *
-     * Returned status (from utils/Errors.h) can be:
-     *      NO_ERROR        successful operation.
-     *      PERMISSION_DENIED could not get AudioFlinger interface
-     *      NO_INIT         effect library failed to initialize
-     *      BAD_VALUE       invalid uuid or descriptor pointers
-     *      NAME_NOT_FOUND  no effect with this uuid found
-     *
-     * Returned value
-     *   *descriptor updated with effect descriptor
-     */
-    static status_t getEffectDescriptor(const effect_uuid_t *uuid,
-                                        effect_descriptor_t *descriptor) /*const*/;
-
-
-    /*
-     * Returns a list of descriptors corresponding to the pre processings enabled by default
-     * on an AudioRecord with the supplied audio session ID.
-     *
-     * Parameters:
-     *      audioSession:  audio session ID.
-     *      descriptors: address where the effect descriptors should be returned.
-     *      count: as input, the maximum number of descriptor than should be returned
-     *             as output, the number of descriptor returned if status is NO_ERROR or the actual
-     *             number of enabled pre processings if status is NO_MEMORY
-     *
-     * Returned status (from utils/Errors.h) can be:
-     *      NO_ERROR        successful operation.
-     *      NO_MEMORY       the number of descriptor to return is more than the maximum number
-     *                      indicated by count.
-     *      PERMISSION_DENIED could not get AudioFlinger interface
-     *      NO_INIT         effect library failed to initialize
-     *      BAD_VALUE       invalid audio session or descriptor pointers
-     *
-     * Returned value
-     *   *descriptor updated with descriptors of pre processings enabled by default
-     *   *count      number of descriptors returned if returned status is NO_ERROR.
-     *               total number of pre processing enabled by default if returned status is
-     *               NO_MEMORY. This happens if the count passed as input is less than the number
-     *               of descriptors to return.
-     *               *count is limited to kMaxPreProcessing on return.
-     */
-    static status_t queryDefaultPreProcessing(audio_session_t audioSession,
-                                              effect_descriptor_t *descriptors,
-                                              uint32_t *count);
-
-    /*
-     * Events used by callback function (effect_callback_t).
-     */
-    enum event_type {
-        EVENT_CONTROL_STATUS_CHANGED = 0,
-        EVENT_ENABLE_STATUS_CHANGED = 1,
-        EVENT_PARAMETER_CHANGED = 2,
-        EVENT_ERROR = 3
-    };
-
-    /* Callback function notifying client application of a change in effect engine state or
-     * configuration.
-     * An effect engine can be shared by several applications but only one has the control
-     * of the engine activity and configuration at a time.
-     * The EVENT_CONTROL_STATUS_CHANGED event is received when an application loses or
-     * retrieves the control of the effect engine. Loss of control happens
-     * if another application requests the use of the engine by creating an AudioEffect for
-     * the same effect type but with a higher priority. Control is returned when the
-     * application having the control deletes its AudioEffect object.
-     * The EVENT_ENABLE_STATUS_CHANGED event is received by all applications not having the
-     * control of the effect engine when the effect is enabled or disabled.
-     * The EVENT_PARAMETER_CHANGED event is received by all applications not having the
-     * control of the effect engine when an effect parameter is changed.
-     * The EVENT_ERROR event is received when the media server process dies.
-     *
-     * Parameters:
-     *
-     * event:   type of event notified (see enum AudioEffect::event_type).
-     * user:    Pointer to context for use by the callback receiver.
-     * info:    Pointer to optional parameter according to event type:
-     *  - EVENT_CONTROL_STATUS_CHANGED:  boolean indicating if control is granted (true)
-     *  or stolen (false).
-     *  - EVENT_ENABLE_STATUS_CHANGED: boolean indicating if effect is now enabled (true)
-     *  or disabled (false).
-     *  - EVENT_PARAMETER_CHANGED: pointer to a effect_param_t structure.
-     *  - EVENT_ERROR:  status_t indicating the error (DEAD_OBJECT when media server dies).
-     */
-
-    typedef void (*effect_callback_t)(int32_t event, void* user, void *info);
-
-
-    /* Constructor.
-     * AudioEffect is the base class for creating and controlling an effect engine from
-     * the application process. Creating an AudioEffect object will create the effect engine
-     * in the AudioFlinger if no engine of the specified type exists. If one exists, this engine
-     * will be used. The application creating the AudioEffect object (or a derived class like
-     * Reverb for instance) will either receive control of the effect engine or not, depending
-     * on the priority parameter. If priority is higher than the priority used by the current
-     * effect engine owner, the control will be transfered to the new application. Otherwise
-     * control will remain to the previous application. In this case, the new application will be
-     * notified of changes in effect engine state or control ownership by the effect callback.
-     * After creating the AudioEffect, the application must call the initCheck() method and
-     * check the creation status before trying to control the effect engine (see initCheck()).
-     * If the effect is to be applied to an AudioTrack or MediaPlayer only the application
-     * must specify the audio session ID corresponding to this player.
-     */
-
-    /* Simple Constructor.
-     *
-     * Parameters:
-     *
-     * opPackageName:      The package name used for app op checks.
-     */
-    AudioEffect(const String16& opPackageName);
-
-
-    /* Constructor.
-     *
-     * Parameters:
-     *
-     * type:  type of effect created: can be null if uuid is specified. This corresponds to
-     *        the OpenSL ES interface implemented by this effect.
-     * opPackageName:  The package name used for app op checks.
-     * uuid:  Uuid of effect created: can be null if type is specified. This uuid corresponds to
-     *        a particular implementation of an effect type.
-     * priority:    requested priority for effect control: the priority level corresponds to the
-     *      value of priority parameter: negative values indicate lower priorities, positive values
-     *      higher priorities, 0 being the normal priority.
-     * cbf:         optional callback function (see effect_callback_t)
-     * user:        pointer to context for use by the callback receiver.
-     * sessionID:   audio session this effect is associated to.
-     *      If equal to AUDIO_SESSION_OUTPUT_MIX, the effect will be global to
-     *      the output mix.  Otherwise, the effect will be applied to all players
-     *      (AudioTrack or MediaPLayer) within the same audio session.
-     * io:  HAL audio output or input stream to which this effect must be attached. Leave at 0 for
-     *      automatic output selection by AudioFlinger.
-     */
-
-    AudioEffect(const effect_uuid_t *type,
-                const String16& opPackageName,
-                const effect_uuid_t *uuid = NULL,
-                  int32_t priority = 0,
-                  effect_callback_t cbf = NULL,
-                  void* user = NULL,
-                  audio_session_t sessionId = AUDIO_SESSION_OUTPUT_MIX,
-                  audio_io_handle_t io = AUDIO_IO_HANDLE_NONE
-                  );
-
-    /* Constructor.
-     *      Same as above but with type and uuid specified by character strings
-     */
-    AudioEffect(const char *typeStr,
-                    const String16& opPackageName,
-                    const char *uuidStr = NULL,
-                    int32_t priority = 0,
-                    effect_callback_t cbf = NULL,
-                    void* user = NULL,
-                    audio_session_t sessionId = AUDIO_SESSION_OUTPUT_MIX,
-                    audio_io_handle_t io = AUDIO_IO_HANDLE_NONE
-                    );
-
-    /* Terminates the AudioEffect and unregisters it from AudioFlinger.
-     * The effect engine is also destroyed if this AudioEffect was the last controlling
-     * the engine.
-     */
-                        ~AudioEffect();
-
-    /* Initialize an uninitialized AudioEffect.
-    * Returned status (from utils/Errors.h) can be:
-    *  - NO_ERROR or ALREADY_EXISTS: successful initialization
-    *  - INVALID_OPERATION: AudioEffect is already initialized
-    *  - BAD_VALUE: invalid parameter
-    *  - NO_INIT: audio flinger or audio hardware not initialized
-    * */
-            status_t    set(const effect_uuid_t *type,
-                            const effect_uuid_t *uuid = NULL,
-                            int32_t priority = 0,
-                            effect_callback_t cbf = NULL,
-                            void* user = NULL,
-                            audio_session_t sessionId = AUDIO_SESSION_OUTPUT_MIX,
-                            audio_io_handle_t io = AUDIO_IO_HANDLE_NONE
-                            );
-
-    /* Result of constructing the AudioEffect. This must be checked
-     * before using any AudioEffect API.
-     * initCheck() can return:
-     *  - NO_ERROR:    the effect engine is successfully created and the application has control.
-     *  - ALREADY_EXISTS: the effect engine is successfully created but the application does not
-     *              have control.
-     *  - NO_INIT:     the effect creation failed.
-     *
-     */
-            status_t    initCheck() const;
-
-
-    /* Returns the unique effect Id for the controlled effect engine. This ID is unique
-     * system wide and is used for instance in the case of auxiliary effects to attach
-     * the effect to an AudioTrack or MediaPlayer.
-     *
-     */
-            int32_t     id() const { return mId; }
-
-    /* Returns a descriptor for the effect (see effect_descriptor_t in audio_effect.h).
-     */
-            effect_descriptor_t descriptor() const;
-
-    /* Returns effect control priority of this AudioEffect object.
-     */
-            int32_t     priority() const { return mPriority; }
-
-
-    /* Enables or disables the effect engine.
-     *
-     * Parameters:
-     *  enabled: requested enable state.
-     *
-     * Returned status (from utils/Errors.h) can be:
-     *  - NO_ERROR: successful operation
-     *  - INVALID_OPERATION: the application does not have control of the effect engine or the
-     *  effect is already in the requested state.
-     */
-    virtual status_t    setEnabled(bool enabled);
-            bool        getEnabled() const;
-
-    /* Sets a parameter value.
-     *
-     * Parameters:
-     *      param:  pointer to effect_param_t structure containing the parameter
-     *          and its value (See audio_effect.h).
-     * Returned status (from utils/Errors.h) can be:
-     *  - NO_ERROR: successful operation.
-     *  - INVALID_OPERATION: the application does not have control of the effect engine.
-     *  - BAD_VALUE: invalid parameter identifier or value.
-     *  - DEAD_OBJECT: the effect engine has been deleted.
-     */
-     virtual status_t   setParameter(effect_param_t *param);
-
-    /* Prepare a new parameter value that will be set by next call to
-     * setParameterCommit(). This method can be used to set multiple parameters
-     * in a synchronous manner or to avoid multiple binder calls for each
-     * parameter.
-     *
-     * Parameters:
-     *      param:  pointer to effect_param_t structure containing the parameter
-     *          and its value (See audio_effect.h).
-     *
-     * Returned status (from utils/Errors.h) can be:
-     *  - NO_ERROR: successful operation.
-     *  - INVALID_OPERATION: the application does not have control of the effect engine.
-     *  - NO_MEMORY: no more space available in shared memory used for deferred parameter
-     *  setting.
-     */
-     virtual status_t   setParameterDeferred(effect_param_t *param);
-
-     /* Commit all parameter values previously prepared by setParameterDeferred().
-      *
-      * Parameters:
-      *     none
-      *
-      * Returned status (from utils/Errors.h) can be:
-      *  - NO_ERROR: successful operation.
-      *  - INVALID_OPERATION: No new parameter values ready for commit.
-      *  - BAD_VALUE: invalid parameter identifier or value: there is no indication
-      *     as to which of the parameters caused this error.
-      *  - DEAD_OBJECT: the effect engine has been deleted.
-      */
-     virtual status_t   setParameterCommit();
-
-    /* Gets a parameter value.
-     *
-     * Parameters:
-     *      param:  pointer to effect_param_t structure containing the parameter
-     *          and the returned value (See audio_effect.h).
-     *
-     * Returned status (from utils/Errors.h) can be:
-     *  - NO_ERROR: successful operation.
-     *  - INVALID_OPERATION: the AudioEffect was not successfully initialized.
-     *  - BAD_VALUE: invalid parameter identifier.
-     *  - DEAD_OBJECT: the effect engine has been deleted.
-     */
-     virtual status_t   getParameter(effect_param_t *param);
-
-     /* Sends a command and receives a response to/from effect engine.
-      *     See audio_effect.h for details on effect command() function, valid command codes
-      *     and formats.
-      */
-     virtual status_t command(uint32_t cmdCode,
-                              uint32_t cmdSize,
-                              void *cmdData,
-                              uint32_t *replySize,
-                              void *replyData);
-
-
-     /*
-      * Utility functions.
-      */
-
-     /* Converts the string passed as first argument to the effect_uuid_t
-      * pointed to by second argument
-      */
-     static status_t stringToGuid(const char *str, effect_uuid_t *guid);
-     /* Converts the effect_uuid_t pointed to by first argument to the
-      * string passed as second argument
-      */
-     static status_t guidToString(const effect_uuid_t *guid, char *str, size_t maxLen);
-
-     // kMaxPreProcessing is a reasonable value for the maximum number of preprocessing effects
-     // that can be applied simultaneously.
-     static const uint32_t kMaxPreProcessing = 10;
-
-protected:
-     bool                    mEnabled;           // enable state
-     audio_session_t         mSessionId;         // audio session ID
-     int32_t                 mPriority;          // priority for effect control
-     status_t                mStatus;            // effect status
-     effect_callback_t       mCbf;               // callback function for status, control and
-                                                 // parameter changes notifications
-     void*                   mUserData;          // client context for callback function
-     effect_descriptor_t     mDescriptor;        // effect descriptor
-     int32_t                 mId;                // system wide unique effect engine instance ID
-     Mutex                   mLock;              // Mutex for mEnabled access
-
-     String16                mOpPackageName;     // The package name used for app op checks.
-
-     // IEffectClient
-     virtual void controlStatusChanged(bool controlGranted);
-     virtual void enableStatusChanged(bool enabled);
-     virtual void commandExecuted(uint32_t cmdCode,
-             uint32_t cmdSize,
-             void *pCmdData,
-             uint32_t replySize,
-             void *pReplyData);
-
-private:
-
-     // Implements the IEffectClient interface
-    class EffectClient :
-        public android::BnEffectClient, public android::IBinder::DeathRecipient
-    {
-    public:
-
-        EffectClient(AudioEffect *effect) : mEffect(effect){}
-
-        // IEffectClient
-        virtual void controlStatusChanged(bool controlGranted) {
-            sp<AudioEffect> effect = mEffect.promote();
-            if (effect != 0) {
-                effect->controlStatusChanged(controlGranted);
-            }
-        }
-        virtual void enableStatusChanged(bool enabled) {
-            sp<AudioEffect> effect = mEffect.promote();
-            if (effect != 0) {
-                effect->enableStatusChanged(enabled);
-            }
-        }
-        virtual void commandExecuted(uint32_t cmdCode,
-                                     uint32_t cmdSize,
-                                     void *pCmdData,
-                                     uint32_t replySize,
-                                     void *pReplyData) {
-            sp<AudioEffect> effect = mEffect.promote();
-            if (effect != 0) {
-                effect->commandExecuted(
-                    cmdCode, cmdSize, pCmdData, replySize, pReplyData);
-            }
-        }
-
-        // IBinder::DeathRecipient
-        virtual void binderDied(const wp<IBinder>& /*who*/) {
-            sp<AudioEffect> effect = mEffect.promote();
-            if (effect != 0) {
-                effect->binderDied();
-            }
-        }
-
-    private:
-        wp<AudioEffect> mEffect;
-    };
-
-    void binderDied();
-
-    sp<IEffect>             mIEffect;           // IEffect binder interface
-    sp<EffectClient>        mIEffectClient;     // IEffectClient implementation
-    sp<IMemory>             mCblkMemory;        // shared memory for deferred parameter setting
-    effect_param_cblk_t*    mCblk;              // control block for deferred parameter setting
-    pid_t                   mClientPid;
-};
-
-
-}; // namespace android
-
-#endif // ANDROID_AUDIOEFFECT_H
diff --git a/include/media/AudioEffect.h b/include/media/AudioEffect.h
new file mode 120000
index 0000000..343749c
--- /dev/null
+++ b/include/media/AudioEffect.h
@@ -0,0 +1 @@
+../../media/libaudioclient/include/AudioEffect.h
\ No newline at end of file
diff --git a/include/media/AudioIoDescriptor.h b/include/media/AudioIoDescriptor.h
new file mode 120000
index 0000000..057129b
--- /dev/null
+++ b/include/media/AudioIoDescriptor.h
@@ -0,0 +1 @@
+../../media/libaudioclient/include/AudioIoDescriptor.h
\ No newline at end of file
diff --git a/include/media/AudioMixer.h b/include/media/AudioMixer.h
new file mode 120000
index 0000000..a2d0791
--- /dev/null
+++ b/include/media/AudioMixer.h
@@ -0,0 +1 @@
+../../media/libaudioclient/include/AudioMixer.h
\ No newline at end of file
diff --git a/include/media/AudioParameter.h b/include/media/AudioParameter.h
deleted file mode 100644
index 891bc4b..0000000
--- a/include/media/AudioParameter.h
+++ /dev/null
@@ -1,74 +0,0 @@
-/*
- * Copyright (C) 2008-2011 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_AUDIOPARAMETER_H_
-#define ANDROID_AUDIOPARAMETER_H_
-
-#include <utils/Errors.h>
-#include <utils/KeyedVector.h>
-#include <utils/String8.h>
-
-namespace android {
-
-class AudioParameter {
-
-public:
-    AudioParameter() {}
-    AudioParameter(const String8& keyValuePairs);
-    virtual ~AudioParameter();
-
-    // reserved parameter keys for changing standard parameters with setParameters() function.
-    // Using these keys is mandatory for AudioFlinger to properly monitor audio output/input
-    // configuration changes and act accordingly.
-    //  keyRouting: to change audio routing, value is an int in audio_devices_t
-    //  keySamplingRate: to change sampling rate routing, value is an int
-    //  keyFormat: to change audio format, value is an int in audio_format_t
-    //  keyChannels: to change audio channel configuration, value is an int in audio_channels_t
-    //  keyFrameCount: to change audio output frame count, value is an int
-    //  keyInputSource: to change audio input source, value is an int in audio_source_t
-    //     (defined in media/mediarecorder.h)
-    //  keyScreenState: either "on" or "off"
-    static const char * const keyRouting;
-    static const char * const keySamplingRate;
-    static const char * const keyFormat;
-    static const char * const keyChannels;
-    static const char * const keyFrameCount;
-    static const char * const keyInputSource;
-    static const char * const keyScreenState;
-
-    String8 toString();
-
-    status_t add(const String8& key, const String8& value);
-    status_t addInt(const String8& key, const int value);
-    status_t addFloat(const String8& key, const float value);
-
-    status_t remove(const String8& key);
-
-    status_t get(const String8& key, String8& value);
-    status_t getInt(const String8& key, int& value);
-    status_t getFloat(const String8& key, float& value);
-    status_t getAt(size_t index, String8& key, String8& value);
-
-    size_t size() { return mParameters.size(); }
-
-private:
-    String8 mKeyValuePairs;
-    KeyedVector <String8, String8> mParameters;
-};
-
-};  // namespace android
-
-#endif  /*ANDROID_AUDIOPARAMETER_H_*/
diff --git a/include/media/AudioParameter.h b/include/media/AudioParameter.h
new file mode 120000
index 0000000..6b6fe3b
--- /dev/null
+++ b/include/media/AudioParameter.h
@@ -0,0 +1 @@
+../../media/libaudioclient/include/AudioParameter.h
\ No newline at end of file
diff --git a/include/media/AudioPolicy.h b/include/media/AudioPolicy.h
new file mode 120000
index 0000000..49ee572
--- /dev/null
+++ b/include/media/AudioPolicy.h
@@ -0,0 +1 @@
+../../media/libaudioclient/include/AudioPolicy.h
\ No newline at end of file
diff --git a/include/media/AudioPolicyHelper.h b/include/media/AudioPolicyHelper.h
deleted file mode 100644
index 79231be..0000000
--- a/include/media/AudioPolicyHelper.h
+++ /dev/null
@@ -1,115 +0,0 @@
-/*
- * Copyright (C) 2014 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-#ifndef AUDIO_POLICY_HELPER_H_
-#define AUDIO_POLICY_HELPER_H_
-
-#include <system/audio.h>
-
-static audio_stream_type_t audio_attributes_to_stream_type(const audio_attributes_t *attr)
-{
-    // flags to stream type mapping
-    if ((attr->flags & AUDIO_FLAG_AUDIBILITY_ENFORCED) == AUDIO_FLAG_AUDIBILITY_ENFORCED) {
-        return AUDIO_STREAM_ENFORCED_AUDIBLE;
-    }
-    if ((attr->flags & AUDIO_FLAG_SCO) == AUDIO_FLAG_SCO) {
-        return AUDIO_STREAM_BLUETOOTH_SCO;
-    }
-
-    // usage to stream type mapping
-    switch (attr->usage) {
-    case AUDIO_USAGE_MEDIA:
-    case AUDIO_USAGE_GAME:
-    case AUDIO_USAGE_ASSISTANCE_ACCESSIBILITY:
-    case AUDIO_USAGE_ASSISTANCE_NAVIGATION_GUIDANCE:
-        return AUDIO_STREAM_MUSIC;
-    case AUDIO_USAGE_ASSISTANCE_SONIFICATION:
-        return AUDIO_STREAM_SYSTEM;
-    case AUDIO_USAGE_VOICE_COMMUNICATION:
-        return AUDIO_STREAM_VOICE_CALL;
-
-    case AUDIO_USAGE_VOICE_COMMUNICATION_SIGNALLING:
-        return AUDIO_STREAM_DTMF;
-
-    case AUDIO_USAGE_ALARM:
-        return AUDIO_STREAM_ALARM;
-    case AUDIO_USAGE_NOTIFICATION_TELEPHONY_RINGTONE:
-        return AUDIO_STREAM_RING;
-
-    case AUDIO_USAGE_NOTIFICATION:
-    case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_REQUEST:
-    case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_INSTANT:
-    case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_DELAYED:
-    case AUDIO_USAGE_NOTIFICATION_EVENT:
-        return AUDIO_STREAM_NOTIFICATION;
-
-    case AUDIO_USAGE_UNKNOWN:
-    default:
-        return AUDIO_STREAM_MUSIC;
-    }
-}
-
-static void stream_type_to_audio_attributes(audio_stream_type_t streamType,
-                                     audio_attributes_t *attr) {
-    memset(attr, 0, sizeof(audio_attributes_t));
-
-    switch (streamType) {
-    case AUDIO_STREAM_DEFAULT:
-    case AUDIO_STREAM_MUSIC:
-        attr->content_type = AUDIO_CONTENT_TYPE_MUSIC;
-        attr->usage = AUDIO_USAGE_MEDIA;
-        break;
-    case AUDIO_STREAM_VOICE_CALL:
-        attr->content_type = AUDIO_CONTENT_TYPE_SPEECH;
-        attr->usage = AUDIO_USAGE_VOICE_COMMUNICATION;
-        break;
-    case AUDIO_STREAM_ENFORCED_AUDIBLE:
-        attr->flags  |= AUDIO_FLAG_AUDIBILITY_ENFORCED;
-        // intended fall through, attributes in common with STREAM_SYSTEM
-    case AUDIO_STREAM_SYSTEM:
-        attr->content_type = AUDIO_CONTENT_TYPE_SONIFICATION;
-        attr->usage = AUDIO_USAGE_ASSISTANCE_SONIFICATION;
-        break;
-    case AUDIO_STREAM_RING:
-        attr->content_type = AUDIO_CONTENT_TYPE_SONIFICATION;
-        attr->usage = AUDIO_USAGE_NOTIFICATION_TELEPHONY_RINGTONE;
-        break;
-    case AUDIO_STREAM_ALARM:
-        attr->content_type = AUDIO_CONTENT_TYPE_SONIFICATION;
-        attr->usage = AUDIO_USAGE_ALARM;
-        break;
-    case AUDIO_STREAM_NOTIFICATION:
-        attr->content_type = AUDIO_CONTENT_TYPE_SONIFICATION;
-        attr->usage = AUDIO_USAGE_NOTIFICATION;
-        break;
-    case AUDIO_STREAM_BLUETOOTH_SCO:
-        attr->content_type = AUDIO_CONTENT_TYPE_SPEECH;
-        attr->usage = AUDIO_USAGE_VOICE_COMMUNICATION;
-        attr->flags |= AUDIO_FLAG_SCO;
-        break;
-    case AUDIO_STREAM_DTMF:
-        attr->content_type = AUDIO_CONTENT_TYPE_SONIFICATION;
-        attr->usage = AUDIO_USAGE_VOICE_COMMUNICATION_SIGNALLING;
-        break;
-    case AUDIO_STREAM_TTS:
-        attr->content_type = AUDIO_CONTENT_TYPE_SPEECH;
-        attr->usage = AUDIO_USAGE_ASSISTANCE_ACCESSIBILITY;
-        break;
-    default:
-        ALOGE("invalid stream type %d when converting to attributes", streamType);
-    }
-}
-
-#endif //AUDIO_POLICY_HELPER_H_
diff --git a/include/media/AudioPolicyHelper.h b/include/media/AudioPolicyHelper.h
new file mode 120000
index 0000000..a0302e2
--- /dev/null
+++ b/include/media/AudioPolicyHelper.h
@@ -0,0 +1 @@
+../../media/libaudioclient/include/AudioPolicyHelper.h
\ No newline at end of file
diff --git a/include/media/AudioRecord.h b/include/media/AudioRecord.h
deleted file mode 100644
index 63076e9..0000000
--- a/include/media/AudioRecord.h
+++ /dev/null
@@ -1,657 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_AUDIORECORD_H
-#define ANDROID_AUDIORECORD_H
-
-#include <cutils/sched_policy.h>
-#include <media/AudioSystem.h>
-#include <media/AudioTimestamp.h>
-#include <media/IAudioRecord.h>
-#include <media/Modulo.h>
-#include <utils/threads.h>
-
-namespace android {
-
-// ----------------------------------------------------------------------------
-
-struct audio_track_cblk_t;
-class AudioRecordClientProxy;
-
-// ----------------------------------------------------------------------------
-
-class AudioRecord : public RefBase
-{
-public:
-
-    /* Events used by AudioRecord callback function (callback_t).
-     * Keep in sync with frameworks/base/media/java/android/media/AudioRecord.java NATIVE_EVENT_*.
-     */
-    enum event_type {
-        EVENT_MORE_DATA = 0,        // Request to read available data from buffer.
-                                    // If this event is delivered but the callback handler
-                                    // does not want to read the available data, the handler must
-                                    // explicitly ignore the event by setting frameCount to zero.
-        EVENT_OVERRUN = 1,          // Buffer overrun occurred.
-        EVENT_MARKER = 2,           // Record head is at the specified marker position
-                                    // (See setMarkerPosition()).
-        EVENT_NEW_POS = 3,          // Record head is at a new position
-                                    // (See setPositionUpdatePeriod()).
-        EVENT_NEW_IAUDIORECORD = 4, // IAudioRecord was re-created, either due to re-routing and
-                                    // voluntary invalidation by mediaserver, or mediaserver crash.
-    };
-
-    /* Client should declare a Buffer and pass address to obtainBuffer()
-     * and releaseBuffer().  See also callback_t for EVENT_MORE_DATA.
-     */
-
-    class Buffer
-    {
-    public:
-        // FIXME use m prefix
-        size_t      frameCount;     // number of sample frames corresponding to size;
-                                    // on input to obtainBuffer() it is the number of frames desired
-                                    // on output from obtainBuffer() it is the number of available
-                                    //    frames to be read
-                                    // on input to releaseBuffer() it is currently ignored
-
-        size_t      size;           // input/output in bytes == frameCount * frameSize
-                                    // on input to obtainBuffer() it is ignored
-                                    // on output from obtainBuffer() it is the number of available
-                                    //    bytes to be read, which is frameCount * frameSize
-                                    // on input to releaseBuffer() it is the number of bytes to
-                                    //    release
-                                    // FIXME This is redundant with respect to frameCount.  Consider
-                                    //    removing size and making frameCount the primary field.
-
-        union {
-            void*       raw;
-            short*      i16;        // signed 16-bit
-            int8_t*     i8;         // unsigned 8-bit, offset by 0x80
-                                    // input to obtainBuffer(): unused, output: pointer to buffer
-        };
-    };
-
-    /* As a convenience, if a callback is supplied, a handler thread
-     * is automatically created with the appropriate priority. This thread
-     * invokes the callback when a new buffer becomes available or various conditions occur.
-     * Parameters:
-     *
-     * event:   type of event notified (see enum AudioRecord::event_type).
-     * user:    Pointer to context for use by the callback receiver.
-     * info:    Pointer to optional parameter according to event type:
-     *          - EVENT_MORE_DATA: pointer to AudioRecord::Buffer struct. The callback must not read
-     *                             more bytes than indicated by 'size' field and update 'size' if
-     *                             fewer bytes are consumed.
-     *          - EVENT_OVERRUN: unused.
-     *          - EVENT_MARKER: pointer to const uint32_t containing the marker position in frames.
-     *          - EVENT_NEW_POS: pointer to const uint32_t containing the new position in frames.
-     *          - EVENT_NEW_IAUDIORECORD: unused.
-     */
-
-    typedef void (*callback_t)(int event, void* user, void *info);
-
-    /* Returns the minimum frame count required for the successful creation of
-     * an AudioRecord object.
-     * Returned status (from utils/Errors.h) can be:
-     *  - NO_ERROR: successful operation
-     *  - NO_INIT: audio server or audio hardware not initialized
-     *  - BAD_VALUE: unsupported configuration
-     * frameCount is guaranteed to be non-zero if status is NO_ERROR,
-     * and is undefined otherwise.
-     * FIXME This API assumes a route, and so should be deprecated.
-     */
-
-     static status_t getMinFrameCount(size_t* frameCount,
-                                      uint32_t sampleRate,
-                                      audio_format_t format,
-                                      audio_channel_mask_t channelMask);
-
-    /* How data is transferred from AudioRecord
-     */
-    enum transfer_type {
-        TRANSFER_DEFAULT,   // not specified explicitly; determine from the other parameters
-        TRANSFER_CALLBACK,  // callback EVENT_MORE_DATA
-        TRANSFER_OBTAIN,    // call obtainBuffer() and releaseBuffer()
-        TRANSFER_SYNC,      // synchronous read()
-    };
-
-    /* Constructs an uninitialized AudioRecord. No connection with
-     * AudioFlinger takes place.  Use set() after this.
-     *
-     * Parameters:
-     *
-     * opPackageName:      The package name used for app ops.
-     */
-                        AudioRecord(const String16& opPackageName);
-
-    /* Creates an AudioRecord object and registers it with AudioFlinger.
-     * Once created, the track needs to be started before it can be used.
-     * Unspecified values are set to appropriate default values.
-     *
-     * Parameters:
-     *
-     * inputSource:        Select the audio input to record from (e.g. AUDIO_SOURCE_DEFAULT).
-     * sampleRate:         Data sink sampling rate in Hz.  Zero means to use the source sample rate.
-     * format:             Audio format (e.g AUDIO_FORMAT_PCM_16_BIT for signed
-     *                     16 bits per sample).
-     * channelMask:        Channel mask, such that audio_is_input_channel(channelMask) is true.
-     * opPackageName:      The package name used for app ops.
-     * frameCount:         Minimum size of track PCM buffer in frames. This defines the
-     *                     application's contribution to the
-     *                     latency of the track.  The actual size selected by the AudioRecord could
-     *                     be larger if the requested size is not compatible with current audio HAL
-     *                     latency.  Zero means to use a default value.
-     * cbf:                Callback function. If not null, this function is called periodically
-     *                     to consume new data in TRANSFER_CALLBACK mode
-     *                     and inform of marker, position updates, etc.
-     * user:               Context for use by the callback receiver.
-     * notificationFrames: The callback function is called each time notificationFrames PCM
-     *                     frames are ready in record track output buffer.
-     * sessionId:          Not yet supported.
-     * transferType:       How data is transferred from AudioRecord.
-     * flags:              See comments on audio_input_flags_t in <system/audio.h>
-     * pAttributes:        If not NULL, supersedes inputSource for use case selection.
-     * threadCanCallJava:  Not present in parameter list, and so is fixed at false.
-     */
-
-                        AudioRecord(audio_source_t inputSource,
-                                    uint32_t sampleRate,
-                                    audio_format_t format,
-                                    audio_channel_mask_t channelMask,
-                                    const String16& opPackageName,
-                                    size_t frameCount = 0,
-                                    callback_t cbf = NULL,
-                                    void* user = NULL,
-                                    uint32_t notificationFrames = 0,
-                                    audio_session_t sessionId = AUDIO_SESSION_ALLOCATE,
-                                    transfer_type transferType = TRANSFER_DEFAULT,
-                                    audio_input_flags_t flags = AUDIO_INPUT_FLAG_NONE,
-                                    int uid = -1,
-                                    pid_t pid = -1,
-                                    const audio_attributes_t* pAttributes = NULL);
-
-    /* Terminates the AudioRecord and unregisters it from AudioFlinger.
-     * Also destroys all resources associated with the AudioRecord.
-     */
-protected:
-                        virtual ~AudioRecord();
-public:
-
-    /* Initialize an AudioRecord that was created using the AudioRecord() constructor.
-     * Don't call set() more than once, or after an AudioRecord() constructor that takes parameters.
-     * set() is not multi-thread safe.
-     * Returned status (from utils/Errors.h) can be:
-     *  - NO_ERROR: successful intialization
-     *  - INVALID_OPERATION: AudioRecord is already initialized or record device is already in use
-     *  - BAD_VALUE: invalid parameter (channelMask, format, sampleRate...)
-     *  - NO_INIT: audio server or audio hardware not initialized
-     *  - PERMISSION_DENIED: recording is not allowed for the requesting process
-     * If status is not equal to NO_ERROR, don't call any other APIs on this AudioRecord.
-     *
-     * Parameters not listed in the AudioRecord constructors above:
-     *
-     * threadCanCallJava:  Whether callbacks are made from an attached thread and thus can call JNI.
-     */
-            status_t    set(audio_source_t inputSource,
-                            uint32_t sampleRate,
-                            audio_format_t format,
-                            audio_channel_mask_t channelMask,
-                            size_t frameCount = 0,
-                            callback_t cbf = NULL,
-                            void* user = NULL,
-                            uint32_t notificationFrames = 0,
-                            bool threadCanCallJava = false,
-                            audio_session_t sessionId = AUDIO_SESSION_ALLOCATE,
-                            transfer_type transferType = TRANSFER_DEFAULT,
-                            audio_input_flags_t flags = AUDIO_INPUT_FLAG_NONE,
-                            int uid = -1,
-                            pid_t pid = -1,
-                            const audio_attributes_t* pAttributes = NULL);
-
-    /* Result of constructing the AudioRecord. This must be checked for successful initialization
-     * before using any AudioRecord API (except for set()), because using
-     * an uninitialized AudioRecord produces undefined results.
-     * See set() method above for possible return codes.
-     */
-            status_t    initCheck() const   { return mStatus; }
-
-    /* Returns this track's estimated latency in milliseconds.
-     * This includes the latency due to AudioRecord buffer size, resampling if applicable,
-     * and audio hardware driver.
-     */
-            uint32_t    latency() const     { return mLatency; }
-
-   /* getters, see constructor and set() */
-
-            audio_format_t format() const   { return mFormat; }
-            uint32_t    channelCount() const    { return mChannelCount; }
-            size_t      frameCount() const  { return mFrameCount; }
-            size_t      frameSize() const   { return mFrameSize; }
-            audio_source_t inputSource() const  { return mAttributes.source; }
-
-    /* After it's created the track is not active. Call start() to
-     * make it active. If set, the callback will start being called.
-     * If event is not AudioSystem::SYNC_EVENT_NONE, the capture start will be delayed until
-     * the specified event occurs on the specified trigger session.
-     */
-            status_t    start(AudioSystem::sync_event_t event = AudioSystem::SYNC_EVENT_NONE,
-                              audio_session_t triggerSession = AUDIO_SESSION_NONE);
-
-    /* Stop a track.  The callback will cease being called.  Note that obtainBuffer() still
-     * works and will drain buffers until the pool is exhausted, and then will return WOULD_BLOCK.
-     */
-            void        stop();
-            bool        stopped() const;
-
-    /* Return the sink sample rate for this record track in Hz.
-     * If specified as zero in constructor or set(), this will be the source sample rate.
-     * Unlike AudioTrack, the sample rate is const after initialization, so doesn't need a lock.
-     */
-            uint32_t    getSampleRate() const   { return mSampleRate; }
-
-    /* Sets marker position. When record reaches the number of frames specified,
-     * a callback with event type EVENT_MARKER is called. Calling setMarkerPosition
-     * with marker == 0 cancels marker notification callback.
-     * To set a marker at a position which would compute as 0,
-     * a workaround is to set the marker at a nearby position such as ~0 or 1.
-     * If the AudioRecord has been opened with no callback function associated,
-     * the operation will fail.
-     *
-     * Parameters:
-     *
-     * marker:   marker position expressed in wrapping (overflow) frame units,
-     *           like the return value of getPosition().
-     *
-     * Returned status (from utils/Errors.h) can be:
-     *  - NO_ERROR: successful operation
-     *  - INVALID_OPERATION: the AudioRecord has no callback installed.
-     */
-            status_t    setMarkerPosition(uint32_t marker);
-            status_t    getMarkerPosition(uint32_t *marker) const;
-
-    /* Sets position update period. Every time the number of frames specified has been recorded,
-     * a callback with event type EVENT_NEW_POS is called.
-     * Calling setPositionUpdatePeriod with updatePeriod == 0 cancels new position notification
-     * callback.
-     * If the AudioRecord has been opened with no callback function associated,
-     * the operation will fail.
-     * Extremely small values may be rounded up to a value the implementation can support.
-     *
-     * Parameters:
-     *
-     * updatePeriod:  position update notification period expressed in frames.
-     *
-     * Returned status (from utils/Errors.h) can be:
-     *  - NO_ERROR: successful operation
-     *  - INVALID_OPERATION: the AudioRecord has no callback installed.
-     */
-            status_t    setPositionUpdatePeriod(uint32_t updatePeriod);
-            status_t    getPositionUpdatePeriod(uint32_t *updatePeriod) const;
-
-    /* Return the total number of frames recorded since recording started.
-     * The counter will wrap (overflow) periodically, e.g. every ~27 hours at 44.1 kHz.
-     * It is reset to zero by stop().
-     *
-     * Parameters:
-     *
-     *  position:  Address where to return record head position.
-     *
-     * Returned status (from utils/Errors.h) can be:
-     *  - NO_ERROR: successful operation
-     *  - BAD_VALUE:  position is NULL
-     */
-            status_t    getPosition(uint32_t *position) const;
-
-    /* Return the record timestamp.
-     *
-     * Parameters:
-     *  timestamp: A pointer to the timestamp to be filled.
-     *
-     * Returned status (from utils/Errors.h) can be:
-     *  - NO_ERROR: successful operation
-     *  - BAD_VALUE: timestamp is NULL
-     */
-            status_t getTimestamp(ExtendedTimestamp *timestamp);
-
-    /* Returns a handle on the audio input used by this AudioRecord.
-     *
-     * Parameters:
-     *  none.
-     *
-     * Returned value:
-     *  handle on audio hardware input
-     */
-// FIXME The only known public caller is frameworks/opt/net/voip/src/jni/rtp/AudioGroup.cpp
-            audio_io_handle_t    getInput() const __attribute__((__deprecated__))
-                                                { return getInputPrivate(); }
-private:
-            audio_io_handle_t    getInputPrivate() const;
-public:
-
-    /* Returns the audio session ID associated with this AudioRecord.
-     *
-     * Parameters:
-     *  none.
-     *
-     * Returned value:
-     *  AudioRecord session ID.
-     *
-     * No lock needed because session ID doesn't change after first set().
-     */
-            audio_session_t getSessionId() const { return mSessionId; }
-
-    /* Public API for TRANSFER_OBTAIN mode.
-     * Obtains a buffer of up to "audioBuffer->frameCount" full frames.
-     * After draining these frames of data, the caller should release them with releaseBuffer().
-     * If the track buffer is not empty, obtainBuffer() returns as many contiguous
-     * full frames as are available immediately.
-     *
-     * If nonContig is non-NULL, it is an output parameter that will be set to the number of
-     * additional non-contiguous frames that are predicted to be available immediately,
-     * if the client were to release the first frames and then call obtainBuffer() again.
-     * This value is only a prediction, and needs to be confirmed.
-     * It will be set to zero for an error return.
-     *
-     * If the track buffer is empty and track is stopped, obtainBuffer() returns WOULD_BLOCK
-     * regardless of the value of waitCount.
-     * If the track buffer is empty and track is not stopped, obtainBuffer() blocks with a
-     * maximum timeout based on waitCount; see chart below.
-     * Buffers will be returned until the pool
-     * is exhausted, at which point obtainBuffer() will either block
-     * or return WOULD_BLOCK depending on the value of the "waitCount"
-     * parameter.
-     *
-     * Interpretation of waitCount:
-     *  +n  limits wait time to n * WAIT_PERIOD_MS,
-     *  -1  causes an (almost) infinite wait time,
-     *   0  non-blocking.
-     *
-     * Buffer fields
-     * On entry:
-     *  frameCount  number of frames requested
-     *  size        ignored
-     *  raw         ignored
-     * After error return:
-     *  frameCount  0
-     *  size        0
-     *  raw         undefined
-     * After successful return:
-     *  frameCount  actual number of frames available, <= number requested
-     *  size        actual number of bytes available
-     *  raw         pointer to the buffer
-     */
-
-            status_t    obtainBuffer(Buffer* audioBuffer, int32_t waitCount,
-                                size_t *nonContig = NULL);
-
-            // Explicit Routing
-    /**
-     * TODO Document this method.
-     */
-            status_t setInputDevice(audio_port_handle_t deviceId);
-
-    /**
-     * TODO Document this method.
-     */
-            audio_port_handle_t getInputDevice();
-
-     /* Returns the ID of the audio device actually used by the input to which this AudioRecord
-      * is attached.
-      * A value of AUDIO_PORT_HANDLE_NONE indicates the AudioRecord is not attached to any input.
-      *
-      * Parameters:
-      *  none.
-      */
-     audio_port_handle_t getRoutedDeviceId();
-
-    /* Add an AudioDeviceCallback. The caller will be notified when the audio device
-     * to which this AudioRecord is routed is updated.
-     * Replaces any previously installed callback.
-     * Parameters:
-     *  callback:  The callback interface
-     * Returns NO_ERROR if successful.
-     *         INVALID_OPERATION if the same callback is already installed.
-     *         NO_INIT or PREMISSION_DENIED if AudioFlinger service is not reachable
-     *         BAD_VALUE if the callback is NULL
-     */
-            status_t addAudioDeviceCallback(
-                    const sp<AudioSystem::AudioDeviceCallback>& callback);
-
-    /* remove an AudioDeviceCallback.
-     * Parameters:
-     *  callback:  The callback interface
-     * Returns NO_ERROR if successful.
-     *         INVALID_OPERATION if the callback is not installed
-     *         BAD_VALUE if the callback is NULL
-     */
-            status_t removeAudioDeviceCallback(
-                    const sp<AudioSystem::AudioDeviceCallback>& callback);
-
-private:
-    /* If nonContig is non-NULL, it is an output parameter that will be set to the number of
-     * additional non-contiguous frames that are predicted to be available immediately,
-     * if the client were to release the first frames and then call obtainBuffer() again.
-     * This value is only a prediction, and needs to be confirmed.
-     * It will be set to zero for an error return.
-     * FIXME We could pass an array of Buffers instead of only one Buffer to obtainBuffer(),
-     * in case the requested amount of frames is in two or more non-contiguous regions.
-     * FIXME requested and elapsed are both relative times.  Consider changing to absolute time.
-     */
-            status_t    obtainBuffer(Buffer* audioBuffer, const struct timespec *requested,
-                                     struct timespec *elapsed = NULL, size_t *nonContig = NULL);
-public:
-
-    /* Public API for TRANSFER_OBTAIN mode.
-     * Release an emptied buffer of "audioBuffer->frameCount" frames for AudioFlinger to re-fill.
-     *
-     * Buffer fields:
-     *  frameCount  currently ignored but recommend to set to actual number of frames consumed
-     *  size        actual number of bytes consumed, must be multiple of frameSize
-     *  raw         ignored
-     */
-            void        releaseBuffer(const Buffer* audioBuffer);
-
-    /* As a convenience we provide a read() interface to the audio buffer.
-     * Input parameter 'size' is in byte units.
-     * This is implemented on top of obtainBuffer/releaseBuffer. For best
-     * performance use callbacks. Returns actual number of bytes read >= 0,
-     * or one of the following negative status codes:
-     *      INVALID_OPERATION   AudioRecord is configured for streaming mode
-     *      BAD_VALUE           size is invalid
-     *      WOULD_BLOCK         when obtainBuffer() returns same, or
-     *                          AudioRecord was stopped during the read
-     *      or any other error code returned by IAudioRecord::start() or restoreRecord_l().
-     * Default behavior is to only return when all data has been transferred. Set 'blocking' to
-     * false for the method to return immediately without waiting to try multiple times to read
-     * the full content of the buffer.
-     */
-            ssize_t     read(void* buffer, size_t size, bool blocking = true);
-
-    /* Return the number of input frames lost in the audio driver since the last call of this
-     * function.  Audio driver is expected to reset the value to 0 and restart counting upon
-     * returning the current value by this function call.  Such loss typically occurs when the
-     * user space process is blocked longer than the capacity of audio driver buffers.
-     * Units: the number of input audio frames.
-     * FIXME The side-effect of resetting the counter may be incompatible with multi-client.
-     * Consider making it more like AudioTrack::getUnderrunFrames which doesn't have side effects.
-     */
-            uint32_t    getInputFramesLost() const;
-
-    /* Get the flags */
-            audio_input_flags_t getFlags() const { AutoMutex _l(mLock); return mFlags; }
-
-private:
-    /* copying audio record objects is not allowed */
-                        AudioRecord(const AudioRecord& other);
-            AudioRecord& operator = (const AudioRecord& other);
-
-    /* a small internal class to handle the callback */
-    class AudioRecordThread : public Thread
-    {
-    public:
-        AudioRecordThread(AudioRecord& receiver, bool bCanCallJava = false);
-
-        // Do not call Thread::requestExitAndWait() without first calling requestExit().
-        // Thread::requestExitAndWait() is not virtual, and the implementation doesn't do enough.
-        virtual void        requestExit();
-
-                void        pause();    // suspend thread from execution at next loop boundary
-                void        resume();   // allow thread to execute, if not requested to exit
-                void        wake();     // wake to handle changed notification conditions.
-
-    private:
-                void        pauseInternal(nsecs_t ns = 0LL);
-                                        // like pause(), but only used internally within thread
-
-        friend class AudioRecord;
-        virtual bool        threadLoop();
-        AudioRecord&        mReceiver;
-        virtual ~AudioRecordThread();
-        Mutex               mMyLock;    // Thread::mLock is private
-        Condition           mMyCond;    // Thread::mThreadExitedCondition is private
-        bool                mPaused;    // whether thread is requested to pause at next loop entry
-        bool                mPausedInt; // whether thread internally requests pause
-        nsecs_t             mPausedNs;  // if mPausedInt then associated timeout, otherwise ignored
-        bool                mIgnoreNextPausedInt;   // skip any internal pause and go immediately
-                                        // to processAudioBuffer() as state may have changed
-                                        // since pause time calculated.
-    };
-
-            // body of AudioRecordThread::threadLoop()
-            // returns the maximum amount of time before we would like to run again, where:
-            //      0           immediately
-            //      > 0         no later than this many nanoseconds from now
-            //      NS_WHENEVER still active but no particular deadline
-            //      NS_INACTIVE inactive so don't run again until re-started
-            //      NS_NEVER    never again
-            static const nsecs_t NS_WHENEVER = -1, NS_INACTIVE = -2, NS_NEVER = -3;
-            nsecs_t processAudioBuffer();
-
-            // caller must hold lock on mLock for all _l methods
-
-            status_t openRecord_l(const Modulo<uint32_t> &epoch, const String16& opPackageName);
-
-            // FIXME enum is faster than strcmp() for parameter 'from'
-            status_t restoreRecord_l(const char *from);
-
-    sp<AudioRecordThread>   mAudioRecordThread;
-    mutable Mutex           mLock;
-
-    // Current client state:  false = stopped, true = active.  Protected by mLock.  If more states
-    // are added, consider changing this to enum State { ... } mState as in AudioTrack.
-    bool                    mActive;
-
-    // for client callback handler
-    callback_t              mCbf;                   // callback handler for events, or NULL
-    void*                   mUserData;
-
-    // for notification APIs
-    uint32_t                mNotificationFramesReq; // requested number of frames between each
-                                                    // notification callback
-                                                    // as specified in constructor or set()
-    uint32_t                mNotificationFramesAct; // actual number of frames between each
-                                                    // notification callback
-    bool                    mRefreshRemaining;      // processAudioBuffer() should refresh
-                                                    // mRemainingFrames and mRetryOnPartialBuffer
-
-    // These are private to processAudioBuffer(), and are not protected by a lock
-    uint32_t                mRemainingFrames;       // number of frames to request in obtainBuffer()
-    bool                    mRetryOnPartialBuffer;  // sleep and retry after partial obtainBuffer()
-    uint32_t                mObservedSequence;      // last observed value of mSequence
-
-    Modulo<uint32_t>        mMarkerPosition;        // in wrapping (overflow) frame units
-    bool                    mMarkerReached;
-    Modulo<uint32_t>        mNewPosition;           // in frames
-    uint32_t                mUpdatePeriod;          // in frames, zero means no EVENT_NEW_POS
-
-    status_t                mStatus;
-
-    String16                mOpPackageName;         // The package name used for app ops.
-
-    size_t                  mFrameCount;            // corresponds to current IAudioRecord, value is
-                                                    // reported back by AudioFlinger to the client
-    size_t                  mReqFrameCount;         // frame count to request the first or next time
-                                                    // a new IAudioRecord is needed, non-decreasing
-
-    int64_t                 mFramesRead;            // total frames read. reset to zero after
-                                                    // the start() following stop(). It is not
-                                                    // changed after restoring the track.
-    int64_t                 mFramesReadServerOffset; // An offset to server frames read due to
-                                                    // restoring AudioRecord, or stop/start.
-    // constant after constructor or set()
-    uint32_t                mSampleRate;
-    audio_format_t          mFormat;
-    uint32_t                mChannelCount;
-    size_t                  mFrameSize;         // app-level frame size == AudioFlinger frame size
-    uint32_t                mLatency;           // in ms
-    audio_channel_mask_t    mChannelMask;
-
-    audio_input_flags_t     mFlags;                 // same as mOrigFlags, except for bits that may
-                                                    // be denied by client or server, such as
-                                                    // AUDIO_INPUT_FLAG_FAST.  mLock must be
-                                                    // held to read or write those bits reliably.
-    audio_input_flags_t     mOrigFlags;             // as specified in constructor or set(), const
-
-    audio_session_t         mSessionId;
-    transfer_type           mTransfer;
-
-    // Next 5 fields may be changed if IAudioRecord is re-created, but always != 0
-    // provided the initial set() was successful
-    sp<IAudioRecord>        mAudioRecord;
-    sp<IMemory>             mCblkMemory;
-    audio_track_cblk_t*     mCblk;              // re-load after mLock.unlock()
-    sp<IMemory>             mBufferMemory;
-    audio_io_handle_t       mInput;             // returned by AudioSystem::getInput()
-
-    int                     mPreviousPriority;  // before start()
-    SchedPolicy             mPreviousSchedulingGroup;
-    bool                    mAwaitBoost;    // thread should wait for priority boost before running
-
-    // The proxy should only be referenced while a lock is held because the proxy isn't
-    // multi-thread safe.
-    // An exception is that a blocking ClientProxy::obtainBuffer() may be called without a lock,
-    // provided that the caller also holds an extra reference to the proxy and shared memory to keep
-    // them around in case they are replaced during the obtainBuffer().
-    sp<AudioRecordClientProxy> mProxy;
-
-    bool                    mInOverrun;         // whether recorder is currently in overrun state
-
-private:
-    class DeathNotifier : public IBinder::DeathRecipient {
-    public:
-        DeathNotifier(AudioRecord* audioRecord) : mAudioRecord(audioRecord) { }
-    protected:
-        virtual void        binderDied(const wp<IBinder>& who);
-    private:
-        const wp<AudioRecord> mAudioRecord;
-    };
-
-    sp<DeathNotifier>       mDeathNotifier;
-    uint32_t                mSequence;              // incremented for each new IAudioRecord attempt
-    int                     mClientUid;
-    pid_t                   mClientPid;
-    audio_attributes_t      mAttributes;
-
-    // For Device Selection API
-    //  a value of AUDIO_PORT_HANDLE_NONE indicated default (AudioPolicyManager) routing.
-    audio_port_handle_t    mSelectedDeviceId;
-    sp<AudioSystem::AudioDeviceCallback> mDeviceCallback;
-};
-
-}; // namespace android
-
-#endif // ANDROID_AUDIORECORD_H
diff --git a/include/media/AudioRecord.h b/include/media/AudioRecord.h
new file mode 120000
index 0000000..d5a5c36
--- /dev/null
+++ b/include/media/AudioRecord.h
@@ -0,0 +1 @@
+../../media/libaudioclient/include/AudioRecord.h
\ No newline at end of file
diff --git a/include/media/AudioResampler.h b/include/media/AudioResampler.h
new file mode 120000
index 0000000..50e12f4
--- /dev/null
+++ b/include/media/AudioResampler.h
@@ -0,0 +1 @@
+../../media/libaudioprocessing/include/AudioResampler.h
\ No newline at end of file
diff --git a/include/media/AudioResamplerPublic.h b/include/media/AudioResamplerPublic.h
new file mode 120000
index 0000000..309c23d
--- /dev/null
+++ b/include/media/AudioResamplerPublic.h
@@ -0,0 +1 @@
+../../media/libaudioprocessing/include/AudioResamplerPublic.h
\ No newline at end of file
diff --git a/include/media/AudioSystem.h b/include/media/AudioSystem.h
deleted file mode 100644
index d67ad44..0000000
--- a/include/media/AudioSystem.h
+++ /dev/null
@@ -1,476 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_AUDIOSYSTEM_H_
-#define ANDROID_AUDIOSYSTEM_H_
-
-#include <hardware/audio_effect.h>
-#include <media/AudioPolicy.h>
-#include <media/AudioIoDescriptor.h>
-#include <media/IAudioFlingerClient.h>
-#include <media/IAudioPolicyServiceClient.h>
-#include <system/audio.h>
-#include <system/audio_policy.h>
-#include <utils/Errors.h>
-#include <utils/Mutex.h>
-
-namespace android {
-
-typedef void (*audio_error_callback)(status_t err);
-typedef void (*dynamic_policy_callback)(int event, String8 regId, int val);
-typedef void (*record_config_callback)(int event, audio_session_t session, int source,
-                const audio_config_base_t *clientConfig, const audio_config_base_t *deviceConfig,
-                audio_patch_handle_t patchHandle);
-
-class IAudioFlinger;
-class IAudioPolicyService;
-class String8;
-
-class AudioSystem
-{
-public:
-
-    // FIXME Declare in binder opcode order, similarly to IAudioFlinger.h and IAudioFlinger.cpp
-
-    /* These are static methods to control the system-wide AudioFlinger
-     * only privileged processes can have access to them
-     */
-
-    // mute/unmute microphone
-    static status_t muteMicrophone(bool state);
-    static status_t isMicrophoneMuted(bool *state);
-
-    // set/get master volume
-    static status_t setMasterVolume(float value);
-    static status_t getMasterVolume(float* volume);
-
-    // mute/unmute audio outputs
-    static status_t setMasterMute(bool mute);
-    static status_t getMasterMute(bool* mute);
-
-    // set/get stream volume on specified output
-    static status_t setStreamVolume(audio_stream_type_t stream, float value,
-                                    audio_io_handle_t output);
-    static status_t getStreamVolume(audio_stream_type_t stream, float* volume,
-                                    audio_io_handle_t output);
-
-    // mute/unmute stream
-    static status_t setStreamMute(audio_stream_type_t stream, bool mute);
-    static status_t getStreamMute(audio_stream_type_t stream, bool* mute);
-
-    // set audio mode in audio hardware
-    static status_t setMode(audio_mode_t mode);
-
-    // returns true in *state if tracks are active on the specified stream or have been active
-    // in the past inPastMs milliseconds
-    static status_t isStreamActive(audio_stream_type_t stream, bool *state, uint32_t inPastMs);
-    // returns true in *state if tracks are active for what qualifies as remote playback
-    // on the specified stream or have been active in the past inPastMs milliseconds. Remote
-    // playback isn't mutually exclusive with local playback.
-    static status_t isStreamActiveRemotely(audio_stream_type_t stream, bool *state,
-            uint32_t inPastMs);
-    // returns true in *state if a recorder is currently recording with the specified source
-    static status_t isSourceActive(audio_source_t source, bool *state);
-
-    // set/get audio hardware parameters. The function accepts a list of parameters
-    // key value pairs in the form: key1=value1;key2=value2;...
-    // Some keys are reserved for standard parameters (See AudioParameter class).
-    // The versions with audio_io_handle_t are intended for internal media framework use only.
-    static status_t setParameters(audio_io_handle_t ioHandle, const String8& keyValuePairs);
-    static String8  getParameters(audio_io_handle_t ioHandle, const String8& keys);
-    // The versions without audio_io_handle_t are intended for JNI.
-    static status_t setParameters(const String8& keyValuePairs);
-    static String8  getParameters(const String8& keys);
-
-    static void setErrorCallback(audio_error_callback cb);
-    static void setDynPolicyCallback(dynamic_policy_callback cb);
-    static void setRecordConfigCallback(record_config_callback);
-
-    // helper function to obtain AudioFlinger service handle
-    static const sp<IAudioFlinger> get_audio_flinger();
-
-    static float linearToLog(int volume);
-    static int logToLinear(float volume);
-
-    // Returned samplingRate and frameCount output values are guaranteed
-    // to be non-zero if status == NO_ERROR
-    // FIXME This API assumes a route, and so should be deprecated.
-    static status_t getOutputSamplingRate(uint32_t* samplingRate,
-            audio_stream_type_t stream);
-    // FIXME This API assumes a route, and so should be deprecated.
-    static status_t getOutputFrameCount(size_t* frameCount,
-            audio_stream_type_t stream);
-    // FIXME This API assumes a route, and so should be deprecated.
-    static status_t getOutputLatency(uint32_t* latency,
-            audio_stream_type_t stream);
-    // returns the audio HAL sample rate
-    static status_t getSamplingRate(audio_io_handle_t ioHandle,
-                                          uint32_t* samplingRate);
-    // For output threads with a fast mixer, returns the number of frames per normal mixer buffer.
-    // For output threads without a fast mixer, or for input, this is same as getFrameCountHAL().
-    static status_t getFrameCount(audio_io_handle_t ioHandle,
-                                  size_t* frameCount);
-    // returns the audio output latency in ms. Corresponds to
-    // audio_stream_out->get_latency()
-    static status_t getLatency(audio_io_handle_t output,
-                               uint32_t* latency);
-
-    // return status NO_ERROR implies *buffSize > 0
-    // FIXME This API assumes a route, and so should deprecated.
-    static status_t getInputBufferSize(uint32_t sampleRate, audio_format_t format,
-        audio_channel_mask_t channelMask, size_t* buffSize);
-
-    static status_t setVoiceVolume(float volume);
-
-    // return the number of audio frames written by AudioFlinger to audio HAL and
-    // audio dsp to DAC since the specified output has exited standby.
-    // returned status (from utils/Errors.h) can be:
-    // - NO_ERROR: successful operation, halFrames and dspFrames point to valid data
-    // - INVALID_OPERATION: Not supported on current hardware platform
-    // - BAD_VALUE: invalid parameter
-    // NOTE: this feature is not supported on all hardware platforms and it is
-    // necessary to check returned status before using the returned values.
-    static status_t getRenderPosition(audio_io_handle_t output,
-                                      uint32_t *halFrames,
-                                      uint32_t *dspFrames);
-
-    // return the number of input frames lost by HAL implementation, or 0 if the handle is invalid
-    static uint32_t getInputFramesLost(audio_io_handle_t ioHandle);
-
-    // Allocate a new unique ID for use as an audio session ID or I/O handle.
-    // If unable to contact AudioFlinger, returns AUDIO_UNIQUE_ID_ALLOCATE instead.
-    // FIXME If AudioFlinger were to ever exhaust the unique ID namespace,
-    //       this method could fail by returning either a reserved ID like AUDIO_UNIQUE_ID_ALLOCATE
-    //       or an unspecified existing unique ID.
-    static audio_unique_id_t newAudioUniqueId(audio_unique_id_use_t use);
-
-    static void acquireAudioSessionId(audio_session_t audioSession, pid_t pid);
-    static void releaseAudioSessionId(audio_session_t audioSession, pid_t pid);
-
-    // Get the HW synchronization source used for an audio session.
-    // Return a valid source or AUDIO_HW_SYNC_INVALID if an error occurs
-    // or no HW sync source is used.
-    static audio_hw_sync_t getAudioHwSyncForSession(audio_session_t sessionId);
-
-    // Indicate JAVA services are ready (scheduling, power management ...)
-    static status_t systemReady();
-
-    // Returns the number of frames per audio HAL buffer.
-    // Corresponds to audio_stream->get_buffer_size()/audio_stream_in_frame_size() for input.
-    // See also getFrameCount().
-    static status_t getFrameCountHAL(audio_io_handle_t ioHandle,
-                                     size_t* frameCount);
-
-    // Events used to synchronize actions between audio sessions.
-    // For instance SYNC_EVENT_PRESENTATION_COMPLETE can be used to delay recording start until
-    // playback is complete on another audio session.
-    // See definitions in MediaSyncEvent.java
-    enum sync_event_t {
-        SYNC_EVENT_SAME = -1,             // used internally to indicate restart with same event
-        SYNC_EVENT_NONE = 0,
-        SYNC_EVENT_PRESENTATION_COMPLETE,
-
-        //
-        // Define new events here: SYNC_EVENT_START, SYNC_EVENT_STOP, SYNC_EVENT_TIME ...
-        //
-        SYNC_EVENT_CNT,
-    };
-
-    // Timeout for synchronous record start. Prevents from blocking the record thread forever
-    // if the trigger event is not fired.
-    static const uint32_t kSyncRecordStartTimeOutMs = 30000;
-
-    //
-    // IAudioPolicyService interface (see AudioPolicyInterface for method descriptions)
-    //
-    static status_t setDeviceConnectionState(audio_devices_t device, audio_policy_dev_state_t state,
-                                             const char *device_address, const char *device_name);
-    static audio_policy_dev_state_t getDeviceConnectionState(audio_devices_t device,
-                                                                const char *device_address);
-    static status_t handleDeviceConfigChange(audio_devices_t device,
-                                             const char *device_address,
-                                             const char *device_name);
-    static status_t setPhoneState(audio_mode_t state);
-    static status_t setForceUse(audio_policy_force_use_t usage, audio_policy_forced_cfg_t config);
-    static audio_policy_forced_cfg_t getForceUse(audio_policy_force_use_t usage);
-
-    // Client must successfully hand off the handle reference to AudioFlinger via createTrack(),
-    // or release it with releaseOutput().
-    static audio_io_handle_t getOutput(audio_stream_type_t stream,
-                                        uint32_t samplingRate = 0,
-                                        audio_format_t format = AUDIO_FORMAT_DEFAULT,
-                                        audio_channel_mask_t channelMask = AUDIO_CHANNEL_OUT_STEREO,
-                                        audio_output_flags_t flags = AUDIO_OUTPUT_FLAG_NONE,
-                                        const audio_offload_info_t *offloadInfo = NULL);
-    static status_t getOutputForAttr(const audio_attributes_t *attr,
-                                     audio_io_handle_t *output,
-                                     audio_session_t session,
-                                     audio_stream_type_t *stream,
-                                     uid_t uid,
-                                     uint32_t samplingRate = 0,
-                                     audio_format_t format = AUDIO_FORMAT_DEFAULT,
-                                     audio_channel_mask_t channelMask = AUDIO_CHANNEL_OUT_STEREO,
-                                     audio_output_flags_t flags = AUDIO_OUTPUT_FLAG_NONE,
-                                     audio_port_handle_t selectedDeviceId = AUDIO_PORT_HANDLE_NONE,
-                                     const audio_offload_info_t *offloadInfo = NULL);
-    static status_t startOutput(audio_io_handle_t output,
-                                audio_stream_type_t stream,
-                                audio_session_t session);
-    static status_t stopOutput(audio_io_handle_t output,
-                               audio_stream_type_t stream,
-                               audio_session_t session);
-    static void releaseOutput(audio_io_handle_t output,
-                              audio_stream_type_t stream,
-                              audio_session_t session);
-
-    // Client must successfully hand off the handle reference to AudioFlinger via openRecord(),
-    // or release it with releaseInput().
-    static status_t getInputForAttr(const audio_attributes_t *attr,
-                                    audio_io_handle_t *input,
-                                    audio_session_t session,
-                                    pid_t pid,
-                                    uid_t uid,
-                                    uint32_t samplingRate,
-                                    audio_format_t format,
-                                    audio_channel_mask_t channelMask,
-                                    audio_input_flags_t flags,
-                                    audio_port_handle_t selectedDeviceId = AUDIO_PORT_HANDLE_NONE);
-
-    static status_t startInput(audio_io_handle_t input,
-                               audio_session_t session);
-    static status_t stopInput(audio_io_handle_t input,
-                              audio_session_t session);
-    static void releaseInput(audio_io_handle_t input,
-                             audio_session_t session);
-    static status_t initStreamVolume(audio_stream_type_t stream,
-                                      int indexMin,
-                                      int indexMax);
-    static status_t setStreamVolumeIndex(audio_stream_type_t stream,
-                                         int index,
-                                         audio_devices_t device);
-    static status_t getStreamVolumeIndex(audio_stream_type_t stream,
-                                         int *index,
-                                         audio_devices_t device);
-
-    static uint32_t getStrategyForStream(audio_stream_type_t stream);
-    static audio_devices_t getDevicesForStream(audio_stream_type_t stream);
-
-    static audio_io_handle_t getOutputForEffect(const effect_descriptor_t *desc);
-    static status_t registerEffect(const effect_descriptor_t *desc,
-                                    audio_io_handle_t io,
-                                    uint32_t strategy,
-                                    audio_session_t session,
-                                    int id);
-    static status_t unregisterEffect(int id);
-    static status_t setEffectEnabled(int id, bool enabled);
-
-    // clear stream to output mapping cache (gStreamOutputMap)
-    // and output configuration cache (gOutputs)
-    static void clearAudioConfigCache();
-
-    static const sp<IAudioPolicyService> get_audio_policy_service();
-
-    // helpers for android.media.AudioManager.getProperty(), see description there for meaning
-    static uint32_t getPrimaryOutputSamplingRate();
-    static size_t getPrimaryOutputFrameCount();
-
-    static status_t setLowRamDevice(bool isLowRamDevice);
-
-    // Check if hw offload is possible for given format, stream type, sample rate,
-    // bit rate, duration, video and streaming or offload property is enabled
-    static bool isOffloadSupported(const audio_offload_info_t& info);
-
-    // check presence of audio flinger service.
-    // returns NO_ERROR if binding to service succeeds, DEAD_OBJECT otherwise
-    static status_t checkAudioFlinger();
-
-    /* List available audio ports and their attributes */
-    static status_t listAudioPorts(audio_port_role_t role,
-                                   audio_port_type_t type,
-                                   unsigned int *num_ports,
-                                   struct audio_port *ports,
-                                   unsigned int *generation);
-
-    /* Get attributes for a given audio port */
-    static status_t getAudioPort(struct audio_port *port);
-
-    /* Create an audio patch between several source and sink ports */
-    static status_t createAudioPatch(const struct audio_patch *patch,
-                                       audio_patch_handle_t *handle);
-
-    /* Release an audio patch */
-    static status_t releaseAudioPatch(audio_patch_handle_t handle);
-
-    /* List existing audio patches */
-    static status_t listAudioPatches(unsigned int *num_patches,
-                                      struct audio_patch *patches,
-                                      unsigned int *generation);
-    /* Set audio port configuration */
-    static status_t setAudioPortConfig(const struct audio_port_config *config);
-
-
-    static status_t acquireSoundTriggerSession(audio_session_t *session,
-                                           audio_io_handle_t *ioHandle,
-                                           audio_devices_t *device);
-    static status_t releaseSoundTriggerSession(audio_session_t session);
-
-    static audio_mode_t getPhoneState();
-
-    static status_t registerPolicyMixes(const Vector<AudioMix>& mixes, bool registration);
-
-    static status_t startAudioSource(const struct audio_port_config *source,
-                                      const audio_attributes_t *attributes,
-                                      audio_io_handle_t *handle);
-    static status_t stopAudioSource(audio_io_handle_t handle);
-
-    static status_t setMasterMono(bool mono);
-    static status_t getMasterMono(bool *mono);
-
-    // ----------------------------------------------------------------------------
-
-    class AudioPortCallback : public RefBase
-    {
-    public:
-
-                AudioPortCallback() {}
-        virtual ~AudioPortCallback() {}
-
-        virtual void onAudioPortListUpdate() = 0;
-        virtual void onAudioPatchListUpdate() = 0;
-        virtual void onServiceDied() = 0;
-
-    };
-
-    static status_t addAudioPortCallback(const sp<AudioPortCallback>& callback);
-    static status_t removeAudioPortCallback(const sp<AudioPortCallback>& callback);
-
-    class AudioDeviceCallback : public RefBase
-    {
-    public:
-
-                AudioDeviceCallback() {}
-        virtual ~AudioDeviceCallback() {}
-
-        virtual void onAudioDeviceUpdate(audio_io_handle_t audioIo,
-                                         audio_port_handle_t deviceId) = 0;
-    };
-
-    static status_t addAudioDeviceCallback(const sp<AudioDeviceCallback>& callback,
-                                           audio_io_handle_t audioIo);
-    static status_t removeAudioDeviceCallback(const sp<AudioDeviceCallback>& callback,
-                                              audio_io_handle_t audioIo);
-
-    static audio_port_handle_t getDeviceIdForIo(audio_io_handle_t audioIo);
-
-private:
-
-    class AudioFlingerClient: public IBinder::DeathRecipient, public BnAudioFlingerClient
-    {
-    public:
-        AudioFlingerClient() :
-            mInBuffSize(0), mInSamplingRate(0),
-            mInFormat(AUDIO_FORMAT_DEFAULT), mInChannelMask(AUDIO_CHANNEL_NONE) {
-        }
-
-        void clearIoCache();
-        status_t getInputBufferSize(uint32_t sampleRate, audio_format_t format,
-                                    audio_channel_mask_t channelMask, size_t* buffSize);
-        sp<AudioIoDescriptor> getIoDescriptor(audio_io_handle_t ioHandle);
-
-        // DeathRecipient
-        virtual void binderDied(const wp<IBinder>& who);
-
-        // IAudioFlingerClient
-
-        // indicate a change in the configuration of an output or input: keeps the cached
-        // values for output/input parameters up-to-date in client process
-        virtual void ioConfigChanged(audio_io_config_event event,
-                                     const sp<AudioIoDescriptor>& ioDesc);
-
-
-        status_t addAudioDeviceCallback(const sp<AudioDeviceCallback>& callback,
-                                               audio_io_handle_t audioIo);
-        status_t removeAudioDeviceCallback(const sp<AudioDeviceCallback>& callback,
-                                           audio_io_handle_t audioIo);
-
-        audio_port_handle_t getDeviceIdForIo(audio_io_handle_t audioIo);
-
-    private:
-        Mutex                               mLock;
-        DefaultKeyedVector<audio_io_handle_t, sp<AudioIoDescriptor> >   mIoDescriptors;
-        DefaultKeyedVector<audio_io_handle_t, Vector < sp<AudioDeviceCallback> > >
-                                                                        mAudioDeviceCallbacks;
-        // cached values for recording getInputBufferSize() queries
-        size_t                              mInBuffSize;    // zero indicates cache is invalid
-        uint32_t                            mInSamplingRate;
-        audio_format_t                      mInFormat;
-        audio_channel_mask_t                mInChannelMask;
-        sp<AudioIoDescriptor> getIoDescriptor_l(audio_io_handle_t ioHandle);
-    };
-
-    class AudioPolicyServiceClient: public IBinder::DeathRecipient,
-                                    public BnAudioPolicyServiceClient
-    {
-    public:
-        AudioPolicyServiceClient() {
-        }
-
-        int addAudioPortCallback(const sp<AudioPortCallback>& callback);
-        int removeAudioPortCallback(const sp<AudioPortCallback>& callback);
-
-        // DeathRecipient
-        virtual void binderDied(const wp<IBinder>& who);
-
-        // IAudioPolicyServiceClient
-        virtual void onAudioPortListUpdate();
-        virtual void onAudioPatchListUpdate();
-        virtual void onDynamicPolicyMixStateUpdate(String8 regId, int32_t state);
-        virtual void onRecordingConfigurationUpdate(int event, audio_session_t session,
-                        audio_source_t source, const audio_config_base_t *clientConfig,
-                        const audio_config_base_t *deviceConfig, audio_patch_handle_t patchHandle);
-
-    private:
-        Mutex                               mLock;
-        Vector <sp <AudioPortCallback> >    mAudioPortCallbacks;
-    };
-
-    static const sp<AudioFlingerClient> getAudioFlingerClient();
-    static sp<AudioIoDescriptor> getIoDescriptor(audio_io_handle_t ioHandle);
-
-    static sp<AudioFlingerClient> gAudioFlingerClient;
-    static sp<AudioPolicyServiceClient> gAudioPolicyServiceClient;
-    friend class AudioFlingerClient;
-    friend class AudioPolicyServiceClient;
-
-    static Mutex gLock;      // protects gAudioFlinger and gAudioErrorCallback,
-    static Mutex gLockAPS;   // protects gAudioPolicyService and gAudioPolicyServiceClient
-    static sp<IAudioFlinger> gAudioFlinger;
-    static audio_error_callback gAudioErrorCallback;
-    static dynamic_policy_callback gDynPolicyCallback;
-    static record_config_callback gRecordConfigCallback;
-
-    static size_t gInBuffSize;
-    // previous parameters for recording buffer size queries
-    static uint32_t gPrevInSamplingRate;
-    static audio_format_t gPrevInFormat;
-    static audio_channel_mask_t gPrevInChannelMask;
-
-    static sp<IAudioPolicyService> gAudioPolicyService;
-};
-
-};  // namespace android
-
-#endif  /*ANDROID_AUDIOSYSTEM_H_*/
diff --git a/include/media/AudioSystem.h b/include/media/AudioSystem.h
new file mode 120000
index 0000000..0b7179f
--- /dev/null
+++ b/include/media/AudioSystem.h
@@ -0,0 +1 @@
+../../media/libaudioclient/include/AudioSystem.h
\ No newline at end of file
diff --git a/include/media/AudioTimestamp.h b/include/media/AudioTimestamp.h
new file mode 120000
index 0000000..f266780
--- /dev/null
+++ b/include/media/AudioTimestamp.h
@@ -0,0 +1 @@
+../../media/libaudioclient/include/AudioTimestamp.h
\ No newline at end of file
diff --git a/include/media/AudioTrack.h b/include/media/AudioTrack.h
deleted file mode 100644
index 88c4e61..0000000
--- a/include/media/AudioTrack.h
+++ /dev/null
@@ -1,1112 +0,0 @@
-/*
- * Copyright (C) 2007 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_AUDIOTRACK_H
-#define ANDROID_AUDIOTRACK_H
-
-#include <cutils/sched_policy.h>
-#include <media/AudioSystem.h>
-#include <media/AudioTimestamp.h>
-#include <media/IAudioTrack.h>
-#include <media/AudioResamplerPublic.h>
-#include <media/Modulo.h>
-#include <utils/threads.h>
-
-namespace android {
-
-// ----------------------------------------------------------------------------
-
-struct audio_track_cblk_t;
-class AudioTrackClientProxy;
-class StaticAudioTrackClientProxy;
-
-// ----------------------------------------------------------------------------
-
-class AudioTrack : public RefBase
-{
-public:
-
-    /* Events used by AudioTrack callback function (callback_t).
-     * Keep in sync with frameworks/base/media/java/android/media/AudioTrack.java NATIVE_EVENT_*.
-     */
-    enum event_type {
-        EVENT_MORE_DATA = 0,        // Request to write more data to buffer.
-                                    // This event only occurs for TRANSFER_CALLBACK.
-                                    // If this event is delivered but the callback handler
-                                    // does not want to write more data, the handler must
-                                    // ignore the event by setting frameCount to zero.
-                                    // This might occur, for example, if the application is
-                                    // waiting for source data or is at the end of stream.
-                                    //
-                                    // For data filling, it is preferred that the callback
-                                    // does not block and instead returns a short count on
-                                    // the amount of data actually delivered
-                                    // (or 0, if no data is currently available).
-        EVENT_UNDERRUN = 1,         // Buffer underrun occurred. This will not occur for
-                                    // static tracks.
-        EVENT_LOOP_END = 2,         // Sample loop end was reached; playback restarted from
-                                    // loop start if loop count was not 0 for a static track.
-        EVENT_MARKER = 3,           // Playback head is at the specified marker position
-                                    // (See setMarkerPosition()).
-        EVENT_NEW_POS = 4,          // Playback head is at a new position
-                                    // (See setPositionUpdatePeriod()).
-        EVENT_BUFFER_END = 5,       // Playback has completed for a static track.
-        EVENT_NEW_IAUDIOTRACK = 6,  // IAudioTrack was re-created, either due to re-routing and
-                                    // voluntary invalidation by mediaserver, or mediaserver crash.
-        EVENT_STREAM_END = 7,       // Sent after all the buffers queued in AF and HW are played
-                                    // back (after stop is called) for an offloaded track.
-#if 0   // FIXME not yet implemented
-        EVENT_NEW_TIMESTAMP = 8,    // Delivered periodically and when there's a significant change
-                                    // in the mapping from frame position to presentation time.
-                                    // See AudioTimestamp for the information included with event.
-#endif
-    };
-
-    /* Client should declare a Buffer and pass the address to obtainBuffer()
-     * and releaseBuffer().  See also callback_t for EVENT_MORE_DATA.
-     */
-
-    class Buffer
-    {
-    public:
-        // FIXME use m prefix
-        size_t      frameCount;   // number of sample frames corresponding to size;
-                                  // on input to obtainBuffer() it is the number of frames desired,
-                                  // on output from obtainBuffer() it is the number of available
-                                  //    [empty slots for] frames to be filled
-                                  // on input to releaseBuffer() it is currently ignored
-
-        size_t      size;         // input/output in bytes == frameCount * frameSize
-                                  // on input to obtainBuffer() it is ignored
-                                  // on output from obtainBuffer() it is the number of available
-                                  //    [empty slots for] bytes to be filled,
-                                  //    which is frameCount * frameSize
-                                  // on input to releaseBuffer() it is the number of bytes to
-                                  //    release
-                                  // FIXME This is redundant with respect to frameCount.  Consider
-                                  //    removing size and making frameCount the primary field.
-
-        union {
-            void*       raw;
-            short*      i16;      // signed 16-bit
-            int8_t*     i8;       // unsigned 8-bit, offset by 0x80
-        };                        // input to obtainBuffer(): unused, output: pointer to buffer
-    };
-
-    /* As a convenience, if a callback is supplied, a handler thread
-     * is automatically created with the appropriate priority. This thread
-     * invokes the callback when a new buffer becomes available or various conditions occur.
-     * Parameters:
-     *
-     * event:   type of event notified (see enum AudioTrack::event_type).
-     * user:    Pointer to context for use by the callback receiver.
-     * info:    Pointer to optional parameter according to event type:
-     *          - EVENT_MORE_DATA: pointer to AudioTrack::Buffer struct. The callback must not write
-     *            more bytes than indicated by 'size' field and update 'size' if fewer bytes are
-     *            written.
-     *          - EVENT_UNDERRUN: unused.
-     *          - EVENT_LOOP_END: pointer to an int indicating the number of loops remaining.
-     *          - EVENT_MARKER: pointer to const uint32_t containing the marker position in frames.
-     *          - EVENT_NEW_POS: pointer to const uint32_t containing the new position in frames.
-     *          - EVENT_BUFFER_END: unused.
-     *          - EVENT_NEW_IAUDIOTRACK: unused.
-     *          - EVENT_STREAM_END: unused.
-     *          - EVENT_NEW_TIMESTAMP: pointer to const AudioTimestamp.
-     */
-
-    typedef void (*callback_t)(int event, void* user, void *info);
-
-    /* Returns the minimum frame count required for the successful creation of
-     * an AudioTrack object.
-     * Returned status (from utils/Errors.h) can be:
-     *  - NO_ERROR: successful operation
-     *  - NO_INIT: audio server or audio hardware not initialized
-     *  - BAD_VALUE: unsupported configuration
-     * frameCount is guaranteed to be non-zero if status is NO_ERROR,
-     * and is undefined otherwise.
-     * FIXME This API assumes a route, and so should be deprecated.
-     */
-
-    static status_t getMinFrameCount(size_t* frameCount,
-                                     audio_stream_type_t streamType,
-                                     uint32_t sampleRate);
-
-    /* How data is transferred to AudioTrack
-     */
-    enum transfer_type {
-        TRANSFER_DEFAULT,   // not specified explicitly; determine from the other parameters
-        TRANSFER_CALLBACK,  // callback EVENT_MORE_DATA
-        TRANSFER_OBTAIN,    // call obtainBuffer() and releaseBuffer()
-        TRANSFER_SYNC,      // synchronous write()
-        TRANSFER_SHARED,    // shared memory
-    };
-
-    /* Constructs an uninitialized AudioTrack. No connection with
-     * AudioFlinger takes place.  Use set() after this.
-     */
-                        AudioTrack();
-
-    /* Creates an AudioTrack object and registers it with AudioFlinger.
-     * Once created, the track needs to be started before it can be used.
-     * Unspecified values are set to appropriate default values.
-     *
-     * Parameters:
-     *
-     * streamType:         Select the type of audio stream this track is attached to
-     *                     (e.g. AUDIO_STREAM_MUSIC).
-     * sampleRate:         Data source sampling rate in Hz.  Zero means to use the sink sample rate.
-     *                     A non-zero value must be specified if AUDIO_OUTPUT_FLAG_DIRECT is set.
-     *                     0 will not work with current policy implementation for direct output
-     *                     selection where an exact match is needed for sampling rate.
-     * format:             Audio format. For mixed tracks, any PCM format supported by server is OK.
-     *                     For direct and offloaded tracks, the possible format(s) depends on the
-     *                     output sink.
-     * channelMask:        Channel mask, such that audio_is_output_channel(channelMask) is true.
-     * frameCount:         Minimum size of track PCM buffer in frames. This defines the
-     *                     application's contribution to the
-     *                     latency of the track. The actual size selected by the AudioTrack could be
-     *                     larger if the requested size is not compatible with current audio HAL
-     *                     configuration.  Zero means to use a default value.
-     * flags:              See comments on audio_output_flags_t in <system/audio.h>.
-     * cbf:                Callback function. If not null, this function is called periodically
-     *                     to provide new data in TRANSFER_CALLBACK mode
-     *                     and inform of marker, position updates, etc.
-     * user:               Context for use by the callback receiver.
-     * notificationFrames: The callback function is called each time notificationFrames PCM
-     *                     frames have been consumed from track input buffer by server.
-     *                     Zero means to use a default value, which is typically:
-     *                      - fast tracks: HAL buffer size, even if track frameCount is larger
-     *                      - normal tracks: 1/2 of track frameCount
-     *                     A positive value means that many frames at initial source sample rate.
-     *                     A negative value for this parameter specifies the negative of the
-     *                     requested number of notifications (sub-buffers) in the entire buffer.
-     *                     For fast tracks, the FastMixer will process one sub-buffer at a time.
-     *                     The size of each sub-buffer is determined by the HAL.
-     *                     To get "double buffering", for example, one should pass -2.
-     *                     The minimum number of sub-buffers is 1 (expressed as -1),
-     *                     and the maximum number of sub-buffers is 8 (expressed as -8).
-     *                     Negative is only permitted for fast tracks, and if frameCount is zero.
-     *                     TODO It is ugly to overload a parameter in this way depending on
-     *                     whether it is positive, negative, or zero.  Consider splitting apart.
-     * sessionId:          Specific session ID, or zero to use default.
-     * transferType:       How data is transferred to AudioTrack.
-     * offloadInfo:        If not NULL, provides offload parameters for
-     *                     AudioSystem::getOutputForAttr().
-     * uid:                User ID of the app which initially requested this AudioTrack
-     *                     for power management tracking, or -1 for current user ID.
-     * pid:                Process ID of the app which initially requested this AudioTrack
-     *                     for power management tracking, or -1 for current process ID.
-     * pAttributes:        If not NULL, supersedes streamType for use case selection.
-     * doNotReconnect:     If set to true, AudioTrack won't automatically recreate the IAudioTrack
-                           binder to AudioFlinger.
-                           It will return an error instead.  The application will recreate
-                           the track based on offloading or different channel configuration, etc.
-     * maxRequiredSpeed:   For PCM tracks, this creates an appropriate buffer size that will allow
-     *                     maxRequiredSpeed playback. Values less than 1.0f and greater than
-     *                     AUDIO_TIMESTRETCH_SPEED_MAX will be clamped.  For non-PCM tracks
-     *                     and direct or offloaded tracks, this parameter is ignored.
-     * threadCanCallJava:  Not present in parameter list, and so is fixed at false.
-     */
-
-                        AudioTrack( audio_stream_type_t streamType,
-                                    uint32_t sampleRate,
-                                    audio_format_t format,
-                                    audio_channel_mask_t channelMask,
-                                    size_t frameCount    = 0,
-                                    audio_output_flags_t flags = AUDIO_OUTPUT_FLAG_NONE,
-                                    callback_t cbf       = NULL,
-                                    void* user           = NULL,
-                                    int32_t notificationFrames = 0,
-                                    audio_session_t sessionId  = AUDIO_SESSION_ALLOCATE,
-                                    transfer_type transferType = TRANSFER_DEFAULT,
-                                    const audio_offload_info_t *offloadInfo = NULL,
-                                    int uid = -1,
-                                    pid_t pid = -1,
-                                    const audio_attributes_t* pAttributes = NULL,
-                                    bool doNotReconnect = false,
-                                    float maxRequiredSpeed = 1.0f);
-
-    /* Creates an audio track and registers it with AudioFlinger.
-     * With this constructor, the track is configured for static buffer mode.
-     * Data to be rendered is passed in a shared memory buffer
-     * identified by the argument sharedBuffer, which should be non-0.
-     * If sharedBuffer is zero, this constructor is equivalent to the previous constructor
-     * but without the ability to specify a non-zero value for the frameCount parameter.
-     * The memory should be initialized to the desired data before calling start().
-     * The write() method is not supported in this case.
-     * It is recommended to pass a callback function to be notified of playback end by an
-     * EVENT_UNDERRUN event.
-     */
-
-                        AudioTrack( audio_stream_type_t streamType,
-                                    uint32_t sampleRate,
-                                    audio_format_t format,
-                                    audio_channel_mask_t channelMask,
-                                    const sp<IMemory>& sharedBuffer,
-                                    audio_output_flags_t flags = AUDIO_OUTPUT_FLAG_NONE,
-                                    callback_t cbf      = NULL,
-                                    void* user          = NULL,
-                                    int32_t notificationFrames = 0,
-                                    audio_session_t sessionId   = AUDIO_SESSION_ALLOCATE,
-                                    transfer_type transferType = TRANSFER_DEFAULT,
-                                    const audio_offload_info_t *offloadInfo = NULL,
-                                    int uid = -1,
-                                    pid_t pid = -1,
-                                    const audio_attributes_t* pAttributes = NULL,
-                                    bool doNotReconnect = false,
-                                    float maxRequiredSpeed = 1.0f);
-
-    /* Terminates the AudioTrack and unregisters it from AudioFlinger.
-     * Also destroys all resources associated with the AudioTrack.
-     */
-protected:
-                        virtual ~AudioTrack();
-public:
-
-    /* Initialize an AudioTrack that was created using the AudioTrack() constructor.
-     * Don't call set() more than once, or after the AudioTrack() constructors that take parameters.
-     * set() is not multi-thread safe.
-     * Returned status (from utils/Errors.h) can be:
-     *  - NO_ERROR: successful initialization
-     *  - INVALID_OPERATION: AudioTrack is already initialized
-     *  - BAD_VALUE: invalid parameter (channelMask, format, sampleRate...)
-     *  - NO_INIT: audio server or audio hardware not initialized
-     * If status is not equal to NO_ERROR, don't call any other APIs on this AudioTrack.
-     * If sharedBuffer is non-0, the frameCount parameter is ignored and
-     * replaced by the shared buffer's total allocated size in frame units.
-     *
-     * Parameters not listed in the AudioTrack constructors above:
-     *
-     * threadCanCallJava:  Whether callbacks are made from an attached thread and thus can call JNI.
-     *
-     * Internal state post condition:
-     *      (mStreamType == AUDIO_STREAM_DEFAULT) implies this AudioTrack has valid attributes
-     */
-            status_t    set(audio_stream_type_t streamType,
-                            uint32_t sampleRate,
-                            audio_format_t format,
-                            audio_channel_mask_t channelMask,
-                            size_t frameCount   = 0,
-                            audio_output_flags_t flags = AUDIO_OUTPUT_FLAG_NONE,
-                            callback_t cbf      = NULL,
-                            void* user          = NULL,
-                            int32_t notificationFrames = 0,
-                            const sp<IMemory>& sharedBuffer = 0,
-                            bool threadCanCallJava = false,
-                            audio_session_t sessionId  = AUDIO_SESSION_ALLOCATE,
-                            transfer_type transferType = TRANSFER_DEFAULT,
-                            const audio_offload_info_t *offloadInfo = NULL,
-                            int uid = -1,
-                            pid_t pid = -1,
-                            const audio_attributes_t* pAttributes = NULL,
-                            bool doNotReconnect = false,
-                            float maxRequiredSpeed = 1.0f);
-
-    /* Result of constructing the AudioTrack. This must be checked for successful initialization
-     * before using any AudioTrack API (except for set()), because using
-     * an uninitialized AudioTrack produces undefined results.
-     * See set() method above for possible return codes.
-     */
-            status_t    initCheck() const   { return mStatus; }
-
-    /* Returns this track's estimated latency in milliseconds.
-     * This includes the latency due to AudioTrack buffer size, AudioMixer (if any)
-     * and audio hardware driver.
-     */
-            uint32_t    latency() const     { return mLatency; }
-
-    /* Returns the number of application-level buffer underruns
-     * since the AudioTrack was created.
-     */
-            uint32_t    getUnderrunCount() const;
-
-    /* getters, see constructors and set() */
-
-            audio_stream_type_t streamType() const;
-            audio_format_t format() const   { return mFormat; }
-
-    /* Return frame size in bytes, which for linear PCM is
-     * channelCount * (bit depth per channel / 8).
-     * channelCount is determined from channelMask, and bit depth comes from format.
-     * For non-linear formats, the frame size is typically 1 byte.
-     */
-            size_t      frameSize() const   { return mFrameSize; }
-
-            uint32_t    channelCount() const { return mChannelCount; }
-            size_t      frameCount() const  { return mFrameCount; }
-
-    // TODO consider notificationFrames() if needed
-
-    /* Return effective size of audio buffer that an application writes to
-     * or a negative error if the track is uninitialized.
-     */
-            ssize_t     getBufferSizeInFrames();
-
-    /* Returns the buffer duration in microseconds at current playback rate.
-     */
-            status_t    getBufferDurationInUs(int64_t *duration);
-
-    /* Set the effective size of audio buffer that an application writes to.
-     * This is used to determine the amount of available room in the buffer,
-     * which determines when a write will block.
-     * This allows an application to raise and lower the audio latency.
-     * The requested size may be adjusted so that it is
-     * greater or equal to the absolute minimum and
-     * less than or equal to the getBufferCapacityInFrames().
-     * It may also be adjusted slightly for internal reasons.
-     *
-     * Return the final size or a negative error if the track is unitialized
-     * or does not support variable sizes.
-     */
-            ssize_t     setBufferSizeInFrames(size_t size);
-
-    /* Return the static buffer specified in constructor or set(), or 0 for streaming mode */
-            sp<IMemory> sharedBuffer() const { return mSharedBuffer; }
-
-    /* After it's created the track is not active. Call start() to
-     * make it active. If set, the callback will start being called.
-     * If the track was previously paused, volume is ramped up over the first mix buffer.
-     */
-            status_t        start();
-
-    /* Stop a track.
-     * In static buffer mode, the track is stopped immediately.
-     * In streaming mode, the callback will cease being called.  Note that obtainBuffer() still
-     * works and will fill up buffers until the pool is exhausted, and then will return WOULD_BLOCK.
-     * In streaming mode the stop does not occur immediately: any data remaining in the buffer
-     * is first drained, mixed, and output, and only then is the track marked as stopped.
-     */
-            void        stop();
-            bool        stopped() const;
-
-    /* Flush a stopped or paused track. All previously buffered data is discarded immediately.
-     * This has the effect of draining the buffers without mixing or output.
-     * Flush is intended for streaming mode, for example before switching to non-contiguous content.
-     * This function is a no-op if the track is not stopped or paused, or uses a static buffer.
-     */
-            void        flush();
-
-    /* Pause a track. After pause, the callback will cease being called and
-     * obtainBuffer returns WOULD_BLOCK. Note that obtainBuffer() still works
-     * and will fill up buffers until the pool is exhausted.
-     * Volume is ramped down over the next mix buffer following the pause request,
-     * and then the track is marked as paused.  It can be resumed with ramp up by start().
-     */
-            void        pause();
-
-    /* Set volume for this track, mostly used for games' sound effects
-     * left and right volumes. Levels must be >= 0.0 and <= 1.0.
-     * This is the older API.  New applications should use setVolume(float) when possible.
-     */
-            status_t    setVolume(float left, float right);
-
-    /* Set volume for all channels.  This is the preferred API for new applications,
-     * especially for multi-channel content.
-     */
-            status_t    setVolume(float volume);
-
-    /* Set the send level for this track. An auxiliary effect should be attached
-     * to the track with attachEffect(). Level must be >= 0.0 and <= 1.0.
-     */
-            status_t    setAuxEffectSendLevel(float level);
-            void        getAuxEffectSendLevel(float* level) const;
-
-    /* Set source sample rate for this track in Hz, mostly used for games' sound effects.
-     * Zero is not permitted.
-     */
-            status_t    setSampleRate(uint32_t sampleRate);
-
-    /* Return current source sample rate in Hz.
-     * If specified as zero in constructor or set(), this will be the sink sample rate.
-     */
-            uint32_t    getSampleRate() const;
-
-    /* Return the original source sample rate in Hz. This corresponds to the sample rate
-     * if playback rate had normal speed and pitch.
-     */
-            uint32_t    getOriginalSampleRate() const;
-
-    /* Set source playback rate for timestretch
-     * 1.0 is normal speed: < 1.0 is slower, > 1.0 is faster
-     * 1.0 is normal pitch: < 1.0 is lower pitch, > 1.0 is higher pitch
-     *
-     * AUDIO_TIMESTRETCH_SPEED_MIN <= speed <= AUDIO_TIMESTRETCH_SPEED_MAX
-     * AUDIO_TIMESTRETCH_PITCH_MIN <= pitch <= AUDIO_TIMESTRETCH_PITCH_MAX
-     *
-     * Speed increases the playback rate of media, but does not alter pitch.
-     * Pitch increases the "tonal frequency" of media, but does not affect the playback rate.
-     */
-            status_t    setPlaybackRate(const AudioPlaybackRate &playbackRate);
-
-    /* Return current playback rate */
-            const AudioPlaybackRate& getPlaybackRate() const;
-
-    /* Enables looping and sets the start and end points of looping.
-     * Only supported for static buffer mode.
-     *
-     * Parameters:
-     *
-     * loopStart:   loop start in frames relative to start of buffer.
-     * loopEnd:     loop end in frames relative to start of buffer.
-     * loopCount:   number of loops to execute. Calling setLoop() with loopCount == 0 cancels any
-     *              pending or active loop. loopCount == -1 means infinite looping.
-     *
-     * For proper operation the following condition must be respected:
-     *      loopCount != 0 implies 0 <= loopStart < loopEnd <= frameCount().
-     *
-     * If the loop period (loopEnd - loopStart) is too small for the implementation to support,
-     * setLoop() will return BAD_VALUE.  loopCount must be >= -1.
-     *
-     */
-            status_t    setLoop(uint32_t loopStart, uint32_t loopEnd, int loopCount);
-
-    /* Sets marker position. When playback reaches the number of frames specified, a callback with
-     * event type EVENT_MARKER is called. Calling setMarkerPosition with marker == 0 cancels marker
-     * notification callback.  To set a marker at a position which would compute as 0,
-     * a workaround is to set the marker at a nearby position such as ~0 or 1.
-     * If the AudioTrack has been opened with no callback function associated, the operation will
-     * fail.
-     *
-     * Parameters:
-     *
-     * marker:   marker position expressed in wrapping (overflow) frame units,
-     *           like the return value of getPosition().
-     *
-     * Returned status (from utils/Errors.h) can be:
-     *  - NO_ERROR: successful operation
-     *  - INVALID_OPERATION: the AudioTrack has no callback installed.
-     */
-            status_t    setMarkerPosition(uint32_t marker);
-            status_t    getMarkerPosition(uint32_t *marker) const;
-
-    /* Sets position update period. Every time the number of frames specified has been played,
-     * a callback with event type EVENT_NEW_POS is called.
-     * Calling setPositionUpdatePeriod with updatePeriod == 0 cancels new position notification
-     * callback.
-     * If the AudioTrack has been opened with no callback function associated, the operation will
-     * fail.
-     * Extremely small values may be rounded up to a value the implementation can support.
-     *
-     * Parameters:
-     *
-     * updatePeriod:  position update notification period expressed in frames.
-     *
-     * Returned status (from utils/Errors.h) can be:
-     *  - NO_ERROR: successful operation
-     *  - INVALID_OPERATION: the AudioTrack has no callback installed.
-     */
-            status_t    setPositionUpdatePeriod(uint32_t updatePeriod);
-            status_t    getPositionUpdatePeriod(uint32_t *updatePeriod) const;
-
-    /* Sets playback head position.
-     * Only supported for static buffer mode.
-     *
-     * Parameters:
-     *
-     * position:  New playback head position in frames relative to start of buffer.
-     *            0 <= position <= frameCount().  Note that end of buffer is permitted,
-     *            but will result in an immediate underrun if started.
-     *
-     * Returned status (from utils/Errors.h) can be:
-     *  - NO_ERROR: successful operation
-     *  - INVALID_OPERATION: the AudioTrack is not stopped or paused, or is streaming mode.
-     *  - BAD_VALUE: The specified position is beyond the number of frames present in AudioTrack
-     *               buffer
-     */
-            status_t    setPosition(uint32_t position);
-
-    /* Return the total number of frames played since playback start.
-     * The counter will wrap (overflow) periodically, e.g. every ~27 hours at 44.1 kHz.
-     * It is reset to zero by flush(), reload(), and stop().
-     *
-     * Parameters:
-     *
-     *  position:  Address where to return play head position.
-     *
-     * Returned status (from utils/Errors.h) can be:
-     *  - NO_ERROR: successful operation
-     *  - BAD_VALUE:  position is NULL
-     */
-            status_t    getPosition(uint32_t *position);
-
-    /* For static buffer mode only, this returns the current playback position in frames
-     * relative to start of buffer.  It is analogous to the position units used by
-     * setLoop() and setPosition().  After underrun, the position will be at end of buffer.
-     */
-            status_t    getBufferPosition(uint32_t *position);
-
-    /* Forces AudioTrack buffer full condition. When playing a static buffer, this method avoids
-     * rewriting the buffer before restarting playback after a stop.
-     * This method must be called with the AudioTrack in paused or stopped state.
-     * Not allowed in streaming mode.
-     *
-     * Returned status (from utils/Errors.h) can be:
-     *  - NO_ERROR: successful operation
-     *  - INVALID_OPERATION: the AudioTrack is not stopped or paused, or is streaming mode.
-     */
-            status_t    reload();
-
-    /* Returns a handle on the audio output used by this AudioTrack.
-     *
-     * Parameters:
-     *  none.
-     *
-     * Returned value:
-     *  handle on audio hardware output, or AUDIO_IO_HANDLE_NONE if the
-     *  track needed to be re-created but that failed
-     */
-private:
-            audio_io_handle_t    getOutput() const;
-public:
-
-    /* Selects the audio device to use for output of this AudioTrack. A value of
-     * AUDIO_PORT_HANDLE_NONE indicates default (AudioPolicyManager) routing.
-     *
-     * Parameters:
-     *  The device ID of the selected device (as returned by the AudioDevicesManager API).
-     *
-     * Returned value:
-     *  - NO_ERROR: successful operation
-     *    TODO: what else can happen here?
-     */
-            status_t    setOutputDevice(audio_port_handle_t deviceId);
-
-    /* Returns the ID of the audio device selected for this AudioTrack.
-     * A value of AUDIO_PORT_HANDLE_NONE indicates default (AudioPolicyManager) routing.
-     *
-     * Parameters:
-     *  none.
-     */
-     audio_port_handle_t getOutputDevice();
-
-     /* Returns the ID of the audio device actually used by the output to which this AudioTrack is
-      * attached.
-      * A value of AUDIO_PORT_HANDLE_NONE indicates the audio track is not attached to any output.
-      *
-      * Parameters:
-      *  none.
-      */
-     audio_port_handle_t getRoutedDeviceId();
-
-    /* Returns the unique session ID associated with this track.
-     *
-     * Parameters:
-     *  none.
-     *
-     * Returned value:
-     *  AudioTrack session ID.
-     */
-            audio_session_t getSessionId() const { return mSessionId; }
-
-    /* Attach track auxiliary output to specified effect. Use effectId = 0
-     * to detach track from effect.
-     *
-     * Parameters:
-     *
-     * effectId:  effectId obtained from AudioEffect::id().
-     *
-     * Returned status (from utils/Errors.h) can be:
-     *  - NO_ERROR: successful operation
-     *  - INVALID_OPERATION: the effect is not an auxiliary effect.
-     *  - BAD_VALUE: The specified effect ID is invalid
-     */
-            status_t    attachAuxEffect(int effectId);
-
-    /* Public API for TRANSFER_OBTAIN mode.
-     * Obtains a buffer of up to "audioBuffer->frameCount" empty slots for frames.
-     * After filling these slots with data, the caller should release them with releaseBuffer().
-     * If the track buffer is not full, obtainBuffer() returns as many contiguous
-     * [empty slots for] frames as are available immediately.
-     *
-     * If nonContig is non-NULL, it is an output parameter that will be set to the number of
-     * additional non-contiguous frames that are predicted to be available immediately,
-     * if the client were to release the first frames and then call obtainBuffer() again.
-     * This value is only a prediction, and needs to be confirmed.
-     * It will be set to zero for an error return.
-     *
-     * If the track buffer is full and track is stopped, obtainBuffer() returns WOULD_BLOCK
-     * regardless of the value of waitCount.
-     * If the track buffer is full and track is not stopped, obtainBuffer() blocks with a
-     * maximum timeout based on waitCount; see chart below.
-     * Buffers will be returned until the pool
-     * is exhausted, at which point obtainBuffer() will either block
-     * or return WOULD_BLOCK depending on the value of the "waitCount"
-     * parameter.
-     *
-     * Interpretation of waitCount:
-     *  +n  limits wait time to n * WAIT_PERIOD_MS,
-     *  -1  causes an (almost) infinite wait time,
-     *   0  non-blocking.
-     *
-     * Buffer fields
-     * On entry:
-     *  frameCount  number of [empty slots for] frames requested
-     *  size        ignored
-     *  raw         ignored
-     * After error return:
-     *  frameCount  0
-     *  size        0
-     *  raw         undefined
-     * After successful return:
-     *  frameCount  actual number of [empty slots for] frames available, <= number requested
-     *  size        actual number of bytes available
-     *  raw         pointer to the buffer
-     */
-            status_t    obtainBuffer(Buffer* audioBuffer, int32_t waitCount,
-                                size_t *nonContig = NULL);
-
-private:
-    /* If nonContig is non-NULL, it is an output parameter that will be set to the number of
-     * additional non-contiguous frames that are predicted to be available immediately,
-     * if the client were to release the first frames and then call obtainBuffer() again.
-     * This value is only a prediction, and needs to be confirmed.
-     * It will be set to zero for an error return.
-     * FIXME We could pass an array of Buffers instead of only one Buffer to obtainBuffer(),
-     * in case the requested amount of frames is in two or more non-contiguous regions.
-     * FIXME requested and elapsed are both relative times.  Consider changing to absolute time.
-     */
-            status_t    obtainBuffer(Buffer* audioBuffer, const struct timespec *requested,
-                                     struct timespec *elapsed = NULL, size_t *nonContig = NULL);
-public:
-
-    /* Public API for TRANSFER_OBTAIN mode.
-     * Release a filled buffer of frames for AudioFlinger to process.
-     *
-     * Buffer fields:
-     *  frameCount  currently ignored but recommend to set to actual number of frames filled
-     *  size        actual number of bytes filled, must be multiple of frameSize
-     *  raw         ignored
-     */
-            void        releaseBuffer(const Buffer* audioBuffer);
-
-    /* As a convenience we provide a write() interface to the audio buffer.
-     * Input parameter 'size' is in byte units.
-     * This is implemented on top of obtainBuffer/releaseBuffer. For best
-     * performance use callbacks. Returns actual number of bytes written >= 0,
-     * or one of the following negative status codes:
-     *      INVALID_OPERATION   AudioTrack is configured for static buffer or streaming mode
-     *      BAD_VALUE           size is invalid
-     *      WOULD_BLOCK         when obtainBuffer() returns same, or
-     *                          AudioTrack was stopped during the write
-     *      DEAD_OBJECT         when AudioFlinger dies or the output device changes and
-     *                          the track cannot be automatically restored.
-     *                          The application needs to recreate the AudioTrack
-     *                          because the audio device changed or AudioFlinger died.
-     *                          This typically occurs for direct or offload tracks
-     *                          or if mDoNotReconnect is true.
-     *      or any other error code returned by IAudioTrack::start() or restoreTrack_l().
-     * Default behavior is to only return when all data has been transferred. Set 'blocking' to
-     * false for the method to return immediately without waiting to try multiple times to write
-     * the full content of the buffer.
-     */
-            ssize_t     write(const void* buffer, size_t size, bool blocking = true);
-
-    /*
-     * Dumps the state of an audio track.
-     * Not a general-purpose API; intended only for use by media player service to dump its tracks.
-     */
-            status_t    dump(int fd, const Vector<String16>& args) const;
-
-    /*
-     * Return the total number of frames which AudioFlinger desired but were unavailable,
-     * and thus which resulted in an underrun.  Reset to zero by stop().
-     */
-            uint32_t    getUnderrunFrames() const;
-
-    /* Get the flags */
-            audio_output_flags_t getFlags() const { AutoMutex _l(mLock); return mFlags; }
-
-    /* Set parameters - only possible when using direct output */
-            status_t    setParameters(const String8& keyValuePairs);
-
-    /* Get parameters */
-            String8     getParameters(const String8& keys);
-
-    /* Poll for a timestamp on demand.
-     * Use if EVENT_NEW_TIMESTAMP is not delivered often enough for your needs,
-     * or if you need to get the most recent timestamp outside of the event callback handler.
-     * Caution: calling this method too often may be inefficient;
-     * if you need a high resolution mapping between frame position and presentation time,
-     * consider implementing that at application level, based on the low resolution timestamps.
-     * Returns NO_ERROR    if timestamp is valid.
-     *         WOULD_BLOCK if called in STOPPED or FLUSHED state, or if called immediately after
-     *                     start/ACTIVE, when the number of frames consumed is less than the
-     *                     overall hardware latency to physical output. In WOULD_BLOCK cases,
-     *                     one might poll again, or use getPosition(), or use 0 position and
-     *                     current time for the timestamp.
-     *         DEAD_OBJECT if AudioFlinger dies or the output device changes and
-     *                     the track cannot be automatically restored.
-     *                     The application needs to recreate the AudioTrack
-     *                     because the audio device changed or AudioFlinger died.
-     *                     This typically occurs for direct or offload tracks
-     *                     or if mDoNotReconnect is true.
-     *         INVALID_OPERATION  wrong state, or some other error.
-     *
-     * The timestamp parameter is undefined on return, if status is not NO_ERROR.
-     */
-            status_t    getTimestamp(AudioTimestamp& timestamp);
-
-    /* Return the extended timestamp, with additional timebase info and improved drain behavior.
-     *
-     * This is similar to the AudioTrack.java API:
-     * getTimestamp(@NonNull AudioTimestamp timestamp, @AudioTimestamp.Timebase int timebase)
-     *
-     * Some differences between this method and the getTimestamp(AudioTimestamp& timestamp) method
-     *
-     *   1. stop() by itself does not reset the frame position.
-     *      A following start() resets the frame position to 0.
-     *   2. flush() by itself does not reset the frame position.
-     *      The frame position advances by the number of frames flushed,
-     *      when the first frame after flush reaches the audio sink.
-     *   3. BOOTTIME clock offsets are provided to help synchronize with
-     *      non-audio streams, e.g. sensor data.
-     *   4. Position is returned with 64 bits of resolution.
-     *
-     * Parameters:
-     *  timestamp: A pointer to the caller allocated ExtendedTimestamp.
-     *
-     * Returns NO_ERROR    on success; timestamp is filled with valid data.
-     *         BAD_VALUE   if timestamp is NULL.
-     *         WOULD_BLOCK if called immediately after start() when the number
-     *                     of frames consumed is less than the
-     *                     overall hardware latency to physical output. In WOULD_BLOCK cases,
-     *                     one might poll again, or use getPosition(), or use 0 position and
-     *                     current time for the timestamp.
-     *                     If WOULD_BLOCK is returned, the timestamp is still
-     *                     modified with the LOCATION_CLIENT portion filled.
-     *         DEAD_OBJECT if AudioFlinger dies or the output device changes and
-     *                     the track cannot be automatically restored.
-     *                     The application needs to recreate the AudioTrack
-     *                     because the audio device changed or AudioFlinger died.
-     *                     This typically occurs for direct or offloaded tracks
-     *                     or if mDoNotReconnect is true.
-     *         INVALID_OPERATION  if called on a offloaded or direct track.
-     *                     Use getTimestamp(AudioTimestamp& timestamp) instead.
-     */
-            status_t getTimestamp(ExtendedTimestamp *timestamp);
-private:
-            status_t getTimestamp_l(ExtendedTimestamp *timestamp);
-public:
-
-    /* Add an AudioDeviceCallback. The caller will be notified when the audio device to which this
-     * AudioTrack is routed is updated.
-     * Replaces any previously installed callback.
-     * Parameters:
-     *  callback:  The callback interface
-     * Returns NO_ERROR if successful.
-     *         INVALID_OPERATION if the same callback is already installed.
-     *         NO_INIT or PREMISSION_DENIED if AudioFlinger service is not reachable
-     *         BAD_VALUE if the callback is NULL
-     */
-            status_t addAudioDeviceCallback(const sp<AudioSystem::AudioDeviceCallback>& callback);
-
-    /* remove an AudioDeviceCallback.
-     * Parameters:
-     *  callback:  The callback interface
-     * Returns NO_ERROR if successful.
-     *         INVALID_OPERATION if the callback is not installed
-     *         BAD_VALUE if the callback is NULL
-     */
-            status_t removeAudioDeviceCallback(
-                    const sp<AudioSystem::AudioDeviceCallback>& callback);
-
-    /* Obtain the pending duration in milliseconds for playback of pure PCM
-     * (mixable without embedded timing) data remaining in AudioTrack.
-     *
-     * This is used to estimate the drain time for the client-server buffer
-     * so the choice of ExtendedTimestamp::LOCATION_SERVER is default.
-     * One may optionally request to find the duration to play through the HAL
-     * by specifying a location ExtendedTimestamp::LOCATION_KERNEL; however,
-     * INVALID_OPERATION may be returned if the kernel location is unavailable.
-     *
-     * Returns NO_ERROR  if successful.
-     *         INVALID_OPERATION if ExtendedTimestamp::LOCATION_KERNEL cannot be obtained
-     *                   or the AudioTrack does not contain pure PCM data.
-     *         BAD_VALUE if msec is nullptr or location is invalid.
-     */
-            status_t pendingDuration(int32_t *msec,
-                    ExtendedTimestamp::Location location = ExtendedTimestamp::LOCATION_SERVER);
-
-protected:
-    /* copying audio tracks is not allowed */
-                        AudioTrack(const AudioTrack& other);
-            AudioTrack& operator = (const AudioTrack& other);
-
-    /* a small internal class to handle the callback */
-    class AudioTrackThread : public Thread
-    {
-    public:
-        AudioTrackThread(AudioTrack& receiver, bool bCanCallJava = false);
-
-        // Do not call Thread::requestExitAndWait() without first calling requestExit().
-        // Thread::requestExitAndWait() is not virtual, and the implementation doesn't do enough.
-        virtual void        requestExit();
-
-                void        pause();    // suspend thread from execution at next loop boundary
-                void        resume();   // allow thread to execute, if not requested to exit
-                void        wake();     // wake to handle changed notification conditions.
-
-    private:
-                void        pauseInternal(nsecs_t ns = 0LL);
-                                        // like pause(), but only used internally within thread
-
-        friend class AudioTrack;
-        virtual bool        threadLoop();
-        AudioTrack&         mReceiver;
-        virtual ~AudioTrackThread();
-        Mutex               mMyLock;    // Thread::mLock is private
-        Condition           mMyCond;    // Thread::mThreadExitedCondition is private
-        bool                mPaused;    // whether thread is requested to pause at next loop entry
-        bool                mPausedInt; // whether thread internally requests pause
-        nsecs_t             mPausedNs;  // if mPausedInt then associated timeout, otherwise ignored
-        bool                mIgnoreNextPausedInt;   // skip any internal pause and go immediately
-                                        // to processAudioBuffer() as state may have changed
-                                        // since pause time calculated.
-    };
-
-            // body of AudioTrackThread::threadLoop()
-            // returns the maximum amount of time before we would like to run again, where:
-            //      0           immediately
-            //      > 0         no later than this many nanoseconds from now
-            //      NS_WHENEVER still active but no particular deadline
-            //      NS_INACTIVE inactive so don't run again until re-started
-            //      NS_NEVER    never again
-            static const nsecs_t NS_WHENEVER = -1, NS_INACTIVE = -2, NS_NEVER = -3;
-            nsecs_t processAudioBuffer();
-
-            // caller must hold lock on mLock for all _l methods
-
-            status_t createTrack_l();
-
-            // can only be called when mState != STATE_ACTIVE
-            void flush_l();
-
-            void setLoop_l(uint32_t loopStart, uint32_t loopEnd, int loopCount);
-
-            // FIXME enum is faster than strcmp() for parameter 'from'
-            status_t restoreTrack_l(const char *from);
-
-            uint32_t    getUnderrunCount_l() const;
-
-            bool     isOffloaded() const;
-            bool     isDirect() const;
-            bool     isOffloadedOrDirect() const;
-
-            bool     isOffloaded_l() const
-                { return (mFlags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0; }
-
-            bool     isOffloadedOrDirect_l() const
-                { return (mFlags & (AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD|
-                                                AUDIO_OUTPUT_FLAG_DIRECT)) != 0; }
-
-            bool     isDirect_l() const
-                { return (mFlags & AUDIO_OUTPUT_FLAG_DIRECT) != 0; }
-
-            // pure pcm data is mixable (which excludes HW_AV_SYNC, with embedded timing)
-            bool     isPurePcmData_l() const
-                { return audio_is_linear_pcm(mFormat)
-                        && (mAttributes.flags & AUDIO_FLAG_HW_AV_SYNC) == 0; }
-
-            // increment mPosition by the delta of mServer, and return new value of mPosition
-            Modulo<uint32_t> updateAndGetPosition_l();
-
-            // check sample rate and speed is compatible with AudioTrack
-            bool     isSampleRateSpeedAllowed_l(uint32_t sampleRate, float speed) const;
-
-            void     restartIfDisabled();
-
-    // Next 4 fields may be changed if IAudioTrack is re-created, but always != 0
-    sp<IAudioTrack>         mAudioTrack;
-    sp<IMemory>             mCblkMemory;
-    audio_track_cblk_t*     mCblk;                  // re-load after mLock.unlock()
-    audio_io_handle_t       mOutput;                // returned by AudioSystem::getOutput()
-
-    sp<AudioTrackThread>    mAudioTrackThread;
-    bool                    mThreadCanCallJava;
-
-    float                   mVolume[2];
-    float                   mSendLevel;
-    mutable uint32_t        mSampleRate;            // mutable because getSampleRate() can update it
-    uint32_t                mOriginalSampleRate;
-    AudioPlaybackRate       mPlaybackRate;
-    float                   mMaxRequiredSpeed;      // use PCM buffer size to allow this speed
-
-    // Corresponds to current IAudioTrack, value is reported back by AudioFlinger to the client.
-    // This allocated buffer size is maintained by the proxy.
-    size_t                  mFrameCount;            // maximum size of buffer
-
-    size_t                  mReqFrameCount;         // frame count to request the first or next time
-                                                    // a new IAudioTrack is needed, non-decreasing
-
-    // The following AudioFlinger server-side values are cached in createAudioTrack_l().
-    // These values can be used for informational purposes until the track is invalidated,
-    // whereupon restoreTrack_l() calls createTrack_l() to update the values.
-    uint32_t                mAfLatency;             // AudioFlinger latency in ms
-    size_t                  mAfFrameCount;          // AudioFlinger frame count
-    uint32_t                mAfSampleRate;          // AudioFlinger sample rate
-
-    // constant after constructor or set()
-    audio_format_t          mFormat;                // as requested by client, not forced to 16-bit
-    audio_stream_type_t     mStreamType;            // mStreamType == AUDIO_STREAM_DEFAULT implies
-                                                    // this AudioTrack has valid attributes
-    uint32_t                mChannelCount;
-    audio_channel_mask_t    mChannelMask;
-    sp<IMemory>             mSharedBuffer;
-    transfer_type           mTransfer;
-    audio_offload_info_t    mOffloadInfoCopy;
-    const audio_offload_info_t* mOffloadInfo;
-    audio_attributes_t      mAttributes;
-
-    size_t                  mFrameSize;             // frame size in bytes
-
-    status_t                mStatus;
-
-    // can change dynamically when IAudioTrack invalidated
-    uint32_t                mLatency;               // in ms
-
-    // Indicates the current track state.  Protected by mLock.
-    enum State {
-        STATE_ACTIVE,
-        STATE_STOPPED,
-        STATE_PAUSED,
-        STATE_PAUSED_STOPPING,
-        STATE_FLUSHED,
-        STATE_STOPPING,
-    }                       mState;
-
-    // for client callback handler
-    callback_t              mCbf;                   // callback handler for events, or NULL
-    void*                   mUserData;
-
-    // for notification APIs
-
-    // next 2 fields are const after constructor or set()
-    uint32_t                mNotificationFramesReq; // requested number of frames between each
-                                                    // notification callback,
-                                                    // at initial source sample rate
-    uint32_t                mNotificationsPerBufferReq;
-                                                    // requested number of notifications per buffer,
-                                                    // currently only used for fast tracks with
-                                                    // default track buffer size
-
-    uint32_t                mNotificationFramesAct; // actual number of frames between each
-                                                    // notification callback,
-                                                    // at initial source sample rate
-    bool                    mRefreshRemaining;      // processAudioBuffer() should refresh
-                                                    // mRemainingFrames and mRetryOnPartialBuffer
-
-                                                    // used for static track cbf and restoration
-    int32_t                 mLoopCount;             // last setLoop loopCount; zero means disabled
-    uint32_t                mLoopStart;             // last setLoop loopStart
-    uint32_t                mLoopEnd;               // last setLoop loopEnd
-    int32_t                 mLoopCountNotified;     // the last loopCount notified by callback.
-                                                    // mLoopCountNotified counts down, matching
-                                                    // the remaining loop count for static track
-                                                    // playback.
-
-    // These are private to processAudioBuffer(), and are not protected by a lock
-    uint32_t                mRemainingFrames;       // number of frames to request in obtainBuffer()
-    bool                    mRetryOnPartialBuffer;  // sleep and retry after partial obtainBuffer()
-    uint32_t                mObservedSequence;      // last observed value of mSequence
-
-    Modulo<uint32_t>        mMarkerPosition;        // in wrapping (overflow) frame units
-    bool                    mMarkerReached;
-    Modulo<uint32_t>        mNewPosition;           // in frames
-    uint32_t                mUpdatePeriod;          // in frames, zero means no EVENT_NEW_POS
-
-    Modulo<uint32_t>        mServer;                // in frames, last known mProxy->getPosition()
-                                                    // which is count of frames consumed by server,
-                                                    // reset by new IAudioTrack,
-                                                    // whether it is reset by stop() is TBD
-    Modulo<uint32_t>        mPosition;              // in frames, like mServer except continues
-                                                    // monotonically after new IAudioTrack,
-                                                    // and could be easily widened to uint64_t
-    Modulo<uint32_t>        mReleased;              // count of frames released to server
-                                                    // but not necessarily consumed by server,
-                                                    // reset by stop() but continues monotonically
-                                                    // after new IAudioTrack to restore mPosition,
-                                                    // and could be easily widened to uint64_t
-    int64_t                 mStartUs;               // the start time after flush or stop.
-                                                    // only used for offloaded and direct tracks.
-
-    bool                    mPreviousTimestampValid;// true if mPreviousTimestamp is valid
-    bool                    mTimestampStartupGlitchReported; // reduce log spam
-    bool                    mRetrogradeMotionReported; // reduce log spam
-    AudioTimestamp          mPreviousTimestamp;     // used to detect retrograde motion
-    ExtendedTimestamp::Location mPreviousLocation;  // location used for previous timestamp
-
-    uint32_t                mUnderrunCountOffset;   // updated when restoring tracks
-
-    int64_t                 mFramesWritten;         // total frames written. reset to zero after
-                                                    // the start() following stop(). It is not
-                                                    // changed after restoring the track or
-                                                    // after flush.
-    int64_t                 mFramesWrittenServerOffset; // An offset to server frames due to
-                                                    // restoring AudioTrack, or stop/start.
-
-    audio_output_flags_t    mFlags;                 // same as mOrigFlags, except for bits that may
-                                                    // be denied by client or server, such as
-                                                    // AUDIO_OUTPUT_FLAG_FAST.  mLock must be
-                                                    // held to read or write those bits reliably.
-    audio_output_flags_t    mOrigFlags;             // as specified in constructor or set(), const
-
-    bool                    mDoNotReconnect;
-
-    audio_session_t         mSessionId;
-    int                     mAuxEffectId;
-
-    mutable Mutex           mLock;
-
-    int                     mPreviousPriority;          // before start()
-    SchedPolicy             mPreviousSchedulingGroup;
-    bool                    mAwaitBoost;    // thread should wait for priority boost before running
-
-    // The proxy should only be referenced while a lock is held because the proxy isn't
-    // multi-thread safe, especially the SingleStateQueue part of the proxy.
-    // An exception is that a blocking ClientProxy::obtainBuffer() may be called without a lock,
-    // provided that the caller also holds an extra reference to the proxy and shared memory to keep
-    // them around in case they are replaced during the obtainBuffer().
-    sp<StaticAudioTrackClientProxy> mStaticProxy;   // for type safety only
-    sp<AudioTrackClientProxy>       mProxy;         // primary owner of the memory
-
-    bool                    mInUnderrun;            // whether track is currently in underrun state
-    uint32_t                mPausedPosition;
-
-    // For Device Selection API
-    //  a value of AUDIO_PORT_HANDLE_NONE indicated default (AudioPolicyManager) routing.
-    audio_port_handle_t     mSelectedDeviceId;
-
-private:
-    class DeathNotifier : public IBinder::DeathRecipient {
-    public:
-        DeathNotifier(AudioTrack* audioTrack) : mAudioTrack(audioTrack) { }
-    protected:
-        virtual void        binderDied(const wp<IBinder>& who);
-    private:
-        const wp<AudioTrack> mAudioTrack;
-    };
-
-    sp<DeathNotifier>       mDeathNotifier;
-    uint32_t                mSequence;              // incremented for each new IAudioTrack attempt
-    int                     mClientUid;
-    pid_t                   mClientPid;
-
-    sp<AudioSystem::AudioDeviceCallback> mDeviceCallback;
-};
-
-}; // namespace android
-
-#endif // ANDROID_AUDIOTRACK_H
diff --git a/include/media/AudioTrack.h b/include/media/AudioTrack.h
new file mode 120000
index 0000000..fddb075
--- /dev/null
+++ b/include/media/AudioTrack.h
@@ -0,0 +1 @@
+../../media/libaudioclient/include/AudioTrack.h
\ No newline at end of file
diff --git a/include/media/BufferProviders.h b/include/media/BufferProviders.h
new file mode 120000
index 0000000..a1fd855
--- /dev/null
+++ b/include/media/BufferProviders.h
@@ -0,0 +1 @@
+../../media/libmedia/include/BufferProviders.h
\ No newline at end of file
diff --git a/include/media/BufferingSettings.h b/include/media/BufferingSettings.h
new file mode 120000
index 0000000..fb4ec97
--- /dev/null
+++ b/include/media/BufferingSettings.h
@@ -0,0 +1 @@
+../../media/libmedia/include/BufferingSettings.h
\ No newline at end of file
diff --git a/include/media/CasImpl.h b/include/media/CasImpl.h
new file mode 100644
index 0000000..80c901e
--- /dev/null
+++ b/include/media/CasImpl.h
@@ -0,0 +1,96 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef CAS_IMPL_H_
+#define CAS_IMPL_H_
+
+#include <media/stagefright/foundation/ABase.h>
+#include <android/media/BnCas.h>
+
+namespace android {
+namespace media {
+class ICasListener;
+}
+using namespace media;
+using namespace MediaCas;
+using binder::Status;
+class CasPlugin;
+class SharedLibrary;
+
+class CasImpl : public BnCas {
+public:
+    CasImpl(const sp<ICasListener> &listener);
+    virtual ~CasImpl();
+
+    static void OnEvent(
+            void *appData,
+            int32_t event,
+            int32_t arg,
+            uint8_t *data,
+            size_t size);
+
+    void init(const sp<SharedLibrary>& library, CasPlugin *plugin);
+    void onEvent(
+            int32_t event,
+            int32_t arg,
+            uint8_t *data,
+            size_t size);
+
+    // ICas inherits
+
+    virtual Status setPrivateData(
+            const CasData& pvtData) override;
+
+    virtual Status openSession(
+            int32_t program_number, CasSessionId* _aidl_return) override;
+
+    virtual Status openSessionForStream(
+            int32_t program_number,
+            int32_t elementary_PID,
+            CasSessionId* _aidl_return) override;
+
+    virtual Status closeSession(const CasSessionId& sessionId) override;
+
+    virtual Status setSessionPrivateData(
+            const CasSessionId& sessionId,
+            const CasData& pvtData) override;
+
+    virtual Status processEcm(
+            const CasSessionId& sessionId, const ParcelableCasData& ecm) override;
+
+    virtual Status processEmm(const ParcelableCasData& emm) override;
+
+    virtual Status sendEvent(
+            int32_t event, int32_t arg, const ::std::unique_ptr<CasData> &eventData) override;
+
+    virtual Status provision(const String16& provisionString) override;
+
+    virtual Status refreshEntitlements(
+            int32_t refreshType, const ::std::unique_ptr<CasData> &refreshData) override;
+
+    virtual Status release() override;
+
+private:
+    sp<SharedLibrary> mLibrary;
+    CasPlugin *mPlugin;
+    sp<ICasListener> mListener;
+
+    DISALLOW_EVIL_CONSTRUCTORS(CasImpl);
+};
+
+} // namespace android
+
+#endif // CAS_IMPL_H_
diff --git a/include/media/CharacterEncodingDetector.h b/include/media/CharacterEncodingDetector.h
new file mode 120000
index 0000000..f23ed4c
--- /dev/null
+++ b/include/media/CharacterEncodingDetector.h
@@ -0,0 +1 @@
+../../media/libmedia/include/CharacterEncodingDetector.h
\ No newline at end of file
diff --git a/include/media/Crypto.h b/include/media/Crypto.h
deleted file mode 100644
index 7d181d3..0000000
--- a/include/media/Crypto.h
+++ /dev/null
@@ -1,84 +0,0 @@
-/*
- * Copyright (C) 2012 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef CRYPTO_H_
-
-#define CRYPTO_H_
-
-#include <media/ICrypto.h>
-#include <utils/threads.h>
-#include <utils/KeyedVector.h>
-
-#include "SharedLibrary.h"
-
-namespace android {
-
-struct CryptoFactory;
-struct CryptoPlugin;
-
-struct Crypto : public BnCrypto {
-    Crypto();
-    virtual ~Crypto();
-
-    virtual status_t initCheck() const;
-
-    virtual bool isCryptoSchemeSupported(const uint8_t uuid[16]);
-
-    virtual status_t createPlugin(
-            const uint8_t uuid[16], const void *data, size_t size);
-
-    virtual status_t destroyPlugin();
-
-    virtual bool requiresSecureDecoderComponent(
-            const char *mime) const;
-
-    virtual void notifyResolution(uint32_t width, uint32_t height);
-
-    virtual status_t setMediaDrmSession(const Vector<uint8_t> &sessionId);
-
-    virtual ssize_t decrypt(
-            DestinationType dstType,
-            const uint8_t key[16],
-            const uint8_t iv[16],
-            CryptoPlugin::Mode mode,
-            const CryptoPlugin::Pattern &pattern,
-            const sp<IMemory> &sharedBuffer, size_t offset,
-            const CryptoPlugin::SubSample *subSamples, size_t numSubSamples,
-            void *dstPtr,
-            AString *errorDetailMsg);
-
-private:
-    mutable Mutex mLock;
-
-    status_t mInitCheck;
-    sp<SharedLibrary> mLibrary;
-    CryptoFactory *mFactory;
-    CryptoPlugin *mPlugin;
-
-    static KeyedVector<Vector<uint8_t>, String8> mUUIDToLibraryPathMap;
-    static KeyedVector<String8, wp<SharedLibrary> > mLibraryPathToOpenLibraryMap;
-    static Mutex mMapLock;
-
-    void findFactoryForScheme(const uint8_t uuid[16]);
-    bool loadLibraryForScheme(const String8 &path, const uint8_t uuid[16]);
-    void closeFactory();
-
-    DISALLOW_EVIL_CONSTRUCTORS(Crypto);
-};
-
-}  // namespace android
-
-#endif  // CRYPTO_H_
diff --git a/include/media/Crypto.h b/include/media/Crypto.h
new file mode 120000
index 0000000..778f6fe
--- /dev/null
+++ b/include/media/Crypto.h
@@ -0,0 +1 @@
+../../media/libmedia/include/Crypto.h
\ No newline at end of file
diff --git a/include/media/CryptoHal.h b/include/media/CryptoHal.h
new file mode 120000
index 0000000..81f31f5
--- /dev/null
+++ b/include/media/CryptoHal.h
@@ -0,0 +1 @@
+../../media/libmedia/include/CryptoHal.h
\ No newline at end of file
diff --git a/include/media/DescramblerImpl.h b/include/media/DescramblerImpl.h
new file mode 100644
index 0000000..c1c79b3
--- /dev/null
+++ b/include/media/DescramblerImpl.h
@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef DESCRAMBLER_IMPL_H_
+#define DESCRAMBLER_IMPL_H_
+
+#include <media/stagefright/foundation/ABase.h>
+#include <android/media/BnDescrambler.h>
+
+namespace android {
+using namespace media;
+using namespace MediaDescrambler;
+using binder::Status;
+class DescramblerPlugin;
+class SharedLibrary;
+
+class DescramblerImpl : public BnDescrambler {
+public:
+    DescramblerImpl(const sp<SharedLibrary>& library, DescramblerPlugin *plugin);
+    virtual ~DescramblerImpl();
+
+    virtual Status setMediaCasSession(
+            const CasSessionId& sessionId) override;
+
+    virtual Status requiresSecureDecoderComponent(
+            const String16& mime, bool *result) override;
+
+    virtual Status descramble(
+            const DescrambleInfo& descrambleInfo, int32_t *result) override;
+
+    virtual Status release() override;
+
+private:
+    sp<SharedLibrary> mLibrary;
+    DescramblerPlugin *mPlugin;
+
+    DISALLOW_EVIL_CONSTRUCTORS(DescramblerImpl);
+};
+
+} // namespace android
+
+#endif // DESCRAMBLER_IMPL_H_
diff --git a/include/media/Drm.h b/include/media/Drm.h
deleted file mode 100644
index d40019b..0000000
--- a/include/media/Drm.h
+++ /dev/null
@@ -1,172 +0,0 @@
-/*
- * Copyright (C) 2013 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef DRM_H_
-
-#define DRM_H_
-
-#include "SharedLibrary.h"
-
-#include <media/IDrm.h>
-#include <media/IDrmClient.h>
-#include <utils/threads.h>
-
-namespace android {
-
-class DrmFactory;
-class DrmPlugin;
-struct DrmSessionClientInterface;
-
-struct Drm : public BnDrm,
-             public IBinder::DeathRecipient,
-             public DrmPluginListener {
-    Drm();
-    virtual ~Drm();
-
-    virtual status_t initCheck() const;
-
-    virtual bool isCryptoSchemeSupported(const uint8_t uuid[16], const String8 &mimeType);
-
-    virtual status_t createPlugin(const uint8_t uuid[16]);
-
-    virtual status_t destroyPlugin();
-
-    virtual status_t openSession(Vector<uint8_t> &sessionId);
-
-    virtual status_t closeSession(Vector<uint8_t> const &sessionId);
-
-    virtual status_t
-        getKeyRequest(Vector<uint8_t> const &sessionId,
-                      Vector<uint8_t> const &initData,
-                      String8 const &mimeType, DrmPlugin::KeyType keyType,
-                      KeyedVector<String8, String8> const &optionalParameters,
-                      Vector<uint8_t> &request, String8 &defaultUrl,
-                      DrmPlugin::KeyRequestType *keyRequestType);
-
-    virtual status_t provideKeyResponse(Vector<uint8_t> const &sessionId,
-                                        Vector<uint8_t> const &response,
-                                        Vector<uint8_t> &keySetId);
-
-    virtual status_t removeKeys(Vector<uint8_t> const &keySetId);
-
-    virtual status_t restoreKeys(Vector<uint8_t> const &sessionId,
-                                 Vector<uint8_t> const &keySetId);
-
-    virtual status_t queryKeyStatus(Vector<uint8_t> const &sessionId,
-                                    KeyedVector<String8, String8> &infoMap) const;
-
-    virtual status_t getProvisionRequest(String8 const &certType,
-                                         String8 const &certAuthority,
-                                         Vector<uint8_t> &request,
-                                         String8 &defaulUrl);
-
-    virtual status_t provideProvisionResponse(Vector<uint8_t> const &response,
-                                              Vector<uint8_t> &certificate,
-                                              Vector<uint8_t> &wrappedKey);
-
-    virtual status_t getSecureStops(List<Vector<uint8_t> > &secureStops);
-    virtual status_t getSecureStop(Vector<uint8_t> const &ssid, Vector<uint8_t> &secureStop);
-
-    virtual status_t releaseSecureStops(Vector<uint8_t> const &ssRelease);
-    virtual status_t releaseAllSecureStops();
-
-    virtual status_t getPropertyString(String8 const &name, String8 &value ) const;
-    virtual status_t getPropertyByteArray(String8 const &name,
-                                          Vector<uint8_t> &value ) const;
-    virtual status_t setPropertyString(String8 const &name, String8 const &value ) const;
-    virtual status_t setPropertyByteArray(String8 const &name,
-                                          Vector<uint8_t> const &value ) const;
-
-    virtual status_t setCipherAlgorithm(Vector<uint8_t> const &sessionId,
-                                        String8 const &algorithm);
-
-    virtual status_t setMacAlgorithm(Vector<uint8_t> const &sessionId,
-                                     String8 const &algorithm);
-
-    virtual status_t encrypt(Vector<uint8_t> const &sessionId,
-                             Vector<uint8_t> const &keyId,
-                             Vector<uint8_t> const &input,
-                             Vector<uint8_t> const &iv,
-                             Vector<uint8_t> &output);
-
-    virtual status_t decrypt(Vector<uint8_t> const &sessionId,
-                             Vector<uint8_t> const &keyId,
-                             Vector<uint8_t> const &input,
-                             Vector<uint8_t> const &iv,
-                             Vector<uint8_t> &output);
-
-    virtual status_t sign(Vector<uint8_t> const &sessionId,
-                          Vector<uint8_t> const &keyId,
-                          Vector<uint8_t> const &message,
-                          Vector<uint8_t> &signature);
-
-    virtual status_t verify(Vector<uint8_t> const &sessionId,
-                            Vector<uint8_t> const &keyId,
-                            Vector<uint8_t> const &message,
-                            Vector<uint8_t> const &signature,
-                            bool &match);
-
-    virtual status_t signRSA(Vector<uint8_t> const &sessionId,
-                             String8 const &algorithm,
-                             Vector<uint8_t> const &message,
-                             Vector<uint8_t> const &wrappedKey,
-                             Vector<uint8_t> &signature);
-
-    virtual status_t setListener(const sp<IDrmClient>& listener);
-
-    virtual void sendEvent(DrmPlugin::EventType eventType, int extra,
-                           Vector<uint8_t> const *sessionId,
-                           Vector<uint8_t> const *data);
-
-    virtual void sendExpirationUpdate(Vector<uint8_t> const *sessionId,
-                                      int64_t expiryTimeInMS);
-
-    virtual void sendKeysChange(Vector<uint8_t> const *sessionId,
-                                Vector<DrmPlugin::KeyStatus> const *keyStatusList,
-                                bool hasNewUsableKey);
-
-    virtual void binderDied(const wp<IBinder> &the_late_who);
-
-private:
-    static Mutex mLock;
-
-    status_t mInitCheck;
-
-    sp<DrmSessionClientInterface> mDrmSessionClient;
-
-    sp<IDrmClient> mListener;
-    mutable Mutex mEventLock;
-    mutable Mutex mNotifyLock;
-
-    sp<SharedLibrary> mLibrary;
-    DrmFactory *mFactory;
-    DrmPlugin *mPlugin;
-
-    static KeyedVector<Vector<uint8_t>, String8> mUUIDToLibraryPathMap;
-    static KeyedVector<String8, wp<SharedLibrary> > mLibraryPathToOpenLibraryMap;
-    static Mutex mMapLock;
-
-    void findFactoryForScheme(const uint8_t uuid[16]);
-    bool loadLibraryForScheme(const String8 &path, const uint8_t uuid[16]);
-    void closeFactory();
-    void writeByteArray(Parcel &obj, Vector<uint8_t> const *array);
-
-    DISALLOW_EVIL_CONSTRUCTORS(Drm);
-};
-
-}  // namespace android
-
-#endif  // CRYPTO_H_
diff --git a/include/media/Drm.h b/include/media/Drm.h
new file mode 120000
index 0000000..d9bfa5c
--- /dev/null
+++ b/include/media/Drm.h
@@ -0,0 +1 @@
+../../media/libmedia/include/Drm.h
\ No newline at end of file
diff --git a/include/media/DrmHal.h b/include/media/DrmHal.h
new file mode 120000
index 0000000..21ba37b
--- /dev/null
+++ b/include/media/DrmHal.h
@@ -0,0 +1 @@
+../../media/libmedia/include/DrmHal.h
\ No newline at end of file
diff --git a/include/media/DrmSessionClientInterface.h b/include/media/DrmSessionClientInterface.h
new file mode 120000
index 0000000..72090a3
--- /dev/null
+++ b/include/media/DrmSessionClientInterface.h
@@ -0,0 +1 @@
+../../media/libmedia/include/DrmSessionClientInterface.h
\ No newline at end of file
diff --git a/include/media/DrmSessionManager.h b/include/media/DrmSessionManager.h
new file mode 120000
index 0000000..47200f7
--- /dev/null
+++ b/include/media/DrmSessionManager.h
@@ -0,0 +1 @@
+../../media/libmedia/include/DrmSessionManager.h
\ No newline at end of file
diff --git a/include/media/EffectsFactoryApi.h b/include/media/EffectsFactoryApi.h
new file mode 120000
index 0000000..2431dfb
--- /dev/null
+++ b/include/media/EffectsFactoryApi.h
@@ -0,0 +1 @@
+../../media/libeffects/factory/include/EffectsFactoryApi.h
\ No newline at end of file
diff --git a/include/media/ExtendedAudioBufferProvider.h b/include/media/ExtendedAudioBufferProvider.h
new file mode 120000
index 0000000..9497be1
--- /dev/null
+++ b/include/media/ExtendedAudioBufferProvider.h
@@ -0,0 +1 @@
+../../media/libmedia/include/ExtendedAudioBufferProvider.h
\ No newline at end of file
diff --git a/include/media/IAudioFlinger.h b/include/media/IAudioFlinger.h
index 096f7ef..0ad4231 100644
--- a/include/media/IAudioFlinger.h
+++ b/include/media/IAudioFlinger.h
@@ -28,9 +28,8 @@
 #include <media/IAudioRecord.h>
 #include <media/IAudioFlingerClient.h>
 #include <system/audio.h>
+#include <system/audio_effect.h>
 #include <system/audio_policy.h>
-#include <hardware/audio_policy.h>
-#include <hardware/audio_effect.h>
 #include <media/IEffect.h>
 #include <media/IEffectClient.h>
 #include <utils/String8.h>
@@ -67,7 +66,8 @@
                                 pid_t tid,  // -1 means unused, otherwise must be valid non-0
                                 audio_session_t *sessionId,
                                 int clientUid,
-                                status_t *status) = 0;
+                                status_t *status,
+                                audio_port_handle_t portId) = 0;
 
     virtual sp<IAudioRecord> openRecord(
                                 // On successful return, AudioFlinger takes over the handle
@@ -87,7 +87,8 @@
                                 size_t *notificationFrames,
                                 sp<IMemory>& cblk,
                                 sp<IMemory>& buffers,   // return value 0 means it follows cblk
-                                status_t *status) = 0;
+                                status_t *status,
+                                audio_port_handle_t portId) = 0;
 
     // FIXME Surprisingly, format/latency don't work for input handles
 
@@ -197,6 +198,7 @@
                                     audio_io_handle_t output,
                                     audio_session_t sessionId,
                                     const String16& callingPackage,
+                                    pid_t pid,
                                     status_t *status,
                                     int *id,
                                     int *enabled) = 0;
@@ -257,6 +259,9 @@
                                     const Parcel& data,
                                     Parcel* reply,
                                     uint32_t flags = 0);
+
+    // Requests media.log to start merging log buffers
+    virtual void requestLogMerge() = 0;
 };
 
 // ----------------------------------------------------------------------------
diff --git a/include/media/IAudioFlingerClient.h b/include/media/IAudioFlingerClient.h
new file mode 120000
index 0000000..d27389e
--- /dev/null
+++ b/include/media/IAudioFlingerClient.h
@@ -0,0 +1 @@
+../../media/libaudioclient/include/IAudioFlingerClient.h
\ No newline at end of file
diff --git a/include/media/IAudioPolicyService.h b/include/media/IAudioPolicyService.h
deleted file mode 100644
index f9dcbea..0000000
--- a/include/media/IAudioPolicyService.h
+++ /dev/null
@@ -1,193 +0,0 @@
-/*
- * Copyright (C) 2009 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_IAUDIOPOLICYSERVICE_H
-#define ANDROID_IAUDIOPOLICYSERVICE_H
-
-#include <stdint.h>
-#include <sys/types.h>
-#include <unistd.h>
-
-#include <utils/RefBase.h>
-#include <utils/Errors.h>
-#include <binder/IInterface.h>
-#include <media/AudioSystem.h>
-#include <media/AudioPolicy.h>
-#include <media/IAudioPolicyServiceClient.h>
-
-#include <system/audio_policy.h>
-
-namespace android {
-
-// ----------------------------------------------------------------------------
-
-class IAudioPolicyService : public IInterface
-{
-public:
-    DECLARE_META_INTERFACE(AudioPolicyService);
-
-    //
-    // IAudioPolicyService interface (see AudioPolicyInterface for method descriptions)
-    //
-    virtual status_t setDeviceConnectionState(audio_devices_t device,
-                                              audio_policy_dev_state_t state,
-                                              const char *device_address,
-                                              const char *device_name) = 0;
-    virtual audio_policy_dev_state_t getDeviceConnectionState(audio_devices_t device,
-                                                                  const char *device_address) = 0;
-    virtual status_t handleDeviceConfigChange(audio_devices_t device,
-                                              const char *device_address,
-                                              const char *device_name) = 0;
-    virtual status_t setPhoneState(audio_mode_t state) = 0;
-    virtual status_t setForceUse(audio_policy_force_use_t usage,
-                                    audio_policy_forced_cfg_t config) = 0;
-    virtual audio_policy_forced_cfg_t getForceUse(audio_policy_force_use_t usage) = 0;
-    virtual audio_io_handle_t getOutput(audio_stream_type_t stream,
-                                        uint32_t samplingRate = 0,
-                                        audio_format_t format = AUDIO_FORMAT_DEFAULT,
-                                        audio_channel_mask_t channelMask = 0,
-                                        audio_output_flags_t flags = AUDIO_OUTPUT_FLAG_NONE,
-                                        const audio_offload_info_t *offloadInfo = NULL) = 0;
-    virtual status_t getOutputForAttr(const audio_attributes_t *attr,
-                                      audio_io_handle_t *output,
-                                      audio_session_t session,
-                                      audio_stream_type_t *stream,
-                                      uid_t uid,
-                                      uint32_t samplingRate = 0,
-                                      audio_format_t format = AUDIO_FORMAT_DEFAULT,
-                                      audio_channel_mask_t channelMask = 0,
-                                      audio_output_flags_t flags = AUDIO_OUTPUT_FLAG_NONE,
-                                      audio_port_handle_t selectedDeviceId = AUDIO_PORT_HANDLE_NONE,
-                                      const audio_offload_info_t *offloadInfo = NULL) = 0;
-    virtual status_t startOutput(audio_io_handle_t output,
-                                 audio_stream_type_t stream,
-                                 audio_session_t session) = 0;
-    virtual status_t stopOutput(audio_io_handle_t output,
-                                audio_stream_type_t stream,
-                                audio_session_t session) = 0;
-    virtual void releaseOutput(audio_io_handle_t output,
-                               audio_stream_type_t stream,
-                               audio_session_t session) = 0;
-    virtual status_t  getInputForAttr(const audio_attributes_t *attr,
-                              audio_io_handle_t *input,
-                              audio_session_t session,
-                              pid_t pid,
-                              uid_t uid,
-                              uint32_t samplingRate,
-                              audio_format_t format,
-                              audio_channel_mask_t channelMask,
-                              audio_input_flags_t flags,
-                              audio_port_handle_t selectedDeviceId = AUDIO_PORT_HANDLE_NONE) = 0;
-    virtual status_t startInput(audio_io_handle_t input,
-                                audio_session_t session) = 0;
-    virtual status_t stopInput(audio_io_handle_t input,
-                               audio_session_t session) = 0;
-    virtual void releaseInput(audio_io_handle_t input,
-                              audio_session_t session) = 0;
-    virtual status_t initStreamVolume(audio_stream_type_t stream,
-                                      int indexMin,
-                                      int indexMax) = 0;
-    virtual status_t setStreamVolumeIndex(audio_stream_type_t stream,
-                                          int index,
-                                          audio_devices_t device) = 0;
-    virtual status_t getStreamVolumeIndex(audio_stream_type_t stream,
-                                          int *index,
-                                          audio_devices_t device) = 0;
-    virtual uint32_t getStrategyForStream(audio_stream_type_t stream) = 0;
-    virtual audio_devices_t getDevicesForStream(audio_stream_type_t stream) = 0;
-    virtual audio_io_handle_t getOutputForEffect(const effect_descriptor_t *desc) = 0;
-    virtual status_t registerEffect(const effect_descriptor_t *desc,
-                                    audio_io_handle_t io,
-                                    uint32_t strategy,
-                                    audio_session_t session,
-                                    int id) = 0;
-    virtual status_t unregisterEffect(int id) = 0;
-    virtual status_t setEffectEnabled(int id, bool enabled) = 0;
-    virtual bool     isStreamActive(audio_stream_type_t stream, uint32_t inPastMs = 0) const = 0;
-    virtual bool     isStreamActiveRemotely(audio_stream_type_t stream, uint32_t inPastMs = 0)
-                             const = 0;
-    virtual bool     isSourceActive(audio_source_t source) const = 0;
-    virtual status_t queryDefaultPreProcessing(audio_session_t audioSession,
-                                              effect_descriptor_t *descriptors,
-                                              uint32_t *count) = 0;
-   // Check if offload is possible for given format, stream type, sample rate,
-    // bit rate, duration, video and streaming or offload property is enabled
-    virtual bool isOffloadSupported(const audio_offload_info_t& info) = 0;
-
-    /* List available audio ports and their attributes */
-    virtual status_t listAudioPorts(audio_port_role_t role,
-                                    audio_port_type_t type,
-                                    unsigned int *num_ports,
-                                    struct audio_port *ports,
-                                    unsigned int *generation) = 0;
-
-    /* Get attributes for a given audio port */
-    virtual status_t getAudioPort(struct audio_port *port) = 0;
-
-    /* Create an audio patch between several source and sink ports */
-    virtual status_t createAudioPatch(const struct audio_patch *patch,
-                                       audio_patch_handle_t *handle) = 0;
-
-    /* Release an audio patch */
-    virtual status_t releaseAudioPatch(audio_patch_handle_t handle) = 0;
-
-    /* List existing audio patches */
-    virtual status_t listAudioPatches(unsigned int *num_patches,
-                                      struct audio_patch *patches,
-                                      unsigned int *generation) = 0;
-    /* Set audio port configuration */
-    virtual status_t setAudioPortConfig(const struct audio_port_config *config) = 0;
-
-    virtual void registerClient(const sp<IAudioPolicyServiceClient>& client) = 0;
-
-    virtual void setAudioPortCallbacksEnabled(bool enabled) = 0;
-
-    virtual status_t acquireSoundTriggerSession(audio_session_t *session,
-                                           audio_io_handle_t *ioHandle,
-                                           audio_devices_t *device) = 0;
-
-    virtual status_t releaseSoundTriggerSession(audio_session_t session) = 0;
-
-    virtual audio_mode_t getPhoneState() = 0;
-
-    virtual status_t registerPolicyMixes(const Vector<AudioMix>& mixes, bool registration) = 0;
-
-    virtual status_t startAudioSource(const struct audio_port_config *source,
-                                      const audio_attributes_t *attributes,
-                                      audio_io_handle_t *handle) = 0;
-    virtual status_t stopAudioSource(audio_io_handle_t handle) = 0;
-
-    virtual status_t setMasterMono(bool mono) = 0;
-    virtual status_t getMasterMono(bool *mono) = 0;
-};
-
-
-// ----------------------------------------------------------------------------
-
-class BnAudioPolicyService : public BnInterface<IAudioPolicyService>
-{
-public:
-    virtual status_t    onTransact( uint32_t code,
-                                    const Parcel& data,
-                                    Parcel* reply,
-                                    uint32_t flags = 0);
-};
-
-// ----------------------------------------------------------------------------
-
-}; // namespace android
-
-#endif // ANDROID_IAUDIOPOLICYSERVICE_H
diff --git a/include/media/IAudioPolicyService.h b/include/media/IAudioPolicyService.h
new file mode 120000
index 0000000..8ef16e2
--- /dev/null
+++ b/include/media/IAudioPolicyService.h
@@ -0,0 +1 @@
+../../media/libaudioclient/include/IAudioPolicyService.h
\ No newline at end of file
diff --git a/include/media/IAudioPolicyServiceClient.h b/include/media/IAudioPolicyServiceClient.h
new file mode 120000
index 0000000..26f6790
--- /dev/null
+++ b/include/media/IAudioPolicyServiceClient.h
@@ -0,0 +1 @@
+../../media/libaudioclient/include/IAudioPolicyServiceClient.h
\ No newline at end of file
diff --git a/include/media/IAudioRecord.h b/include/media/IAudioRecord.h
new file mode 120000
index 0000000..520d44e
--- /dev/null
+++ b/include/media/IAudioRecord.h
@@ -0,0 +1 @@
+../../media/libaudioclient/include/IAudioRecord.h
\ No newline at end of file
diff --git a/include/media/IAudioTrack.h b/include/media/IAudioTrack.h
deleted file mode 100644
index a31cec6..0000000
--- a/include/media/IAudioTrack.h
+++ /dev/null
@@ -1,94 +0,0 @@
-/*
- * Copyright (C) 2007 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_IAUDIOTRACK_H
-#define ANDROID_IAUDIOTRACK_H
-
-#include <stdint.h>
-#include <sys/types.h>
-
-#include <utils/RefBase.h>
-#include <utils/Errors.h>
-#include <binder/IInterface.h>
-#include <binder/IMemory.h>
-#include <utils/String8.h>
-#include <media/AudioTimestamp.h>
-
-namespace android {
-
-// ----------------------------------------------------------------------------
-
-class IAudioTrack : public IInterface
-{
-public:
-    DECLARE_META_INTERFACE(AudioTrack);
-
-    /* Get this track's control block */
-    virtual sp<IMemory> getCblk() const = 0;
-
-    /* After it's created the track is not active. Call start() to
-     * make it active.
-     */
-    virtual status_t    start() = 0;
-
-    /* Stop a track. If set, the callback will cease being called and
-     * obtainBuffer will return an error. Buffers that are already released
-     * will continue to be processed, unless/until flush() is called.
-     */
-    virtual void        stop() = 0;
-
-    /* Flush a stopped or paused track. All pending/released buffers are discarded.
-     * This function has no effect if the track is not stopped or paused.
-     */
-    virtual void        flush() = 0;
-
-    /* Pause a track. If set, the callback will cease being called and
-     * obtainBuffer will return an error. Buffers that are already released
-     * will continue to be processed, unless/until flush() is called.
-     */
-    virtual void        pause() = 0;
-
-    /* Attach track auxiliary output to specified effect. Use effectId = 0
-     * to detach track from effect.
-     */
-    virtual status_t    attachAuxEffect(int effectId) = 0;
-
-    /* Send parameters to the audio hardware */
-    virtual status_t    setParameters(const String8& keyValuePairs) = 0;
-
-    /* Return NO_ERROR if timestamp is valid.  timestamp is undefined otherwise. */
-    virtual status_t    getTimestamp(AudioTimestamp& timestamp) = 0;
-
-    /* Signal the playback thread for a change in control block */
-    virtual void        signal() = 0;
-};
-
-// ----------------------------------------------------------------------------
-
-class BnAudioTrack : public BnInterface<IAudioTrack>
-{
-public:
-    virtual status_t    onTransact( uint32_t code,
-                                    const Parcel& data,
-                                    Parcel* reply,
-                                    uint32_t flags = 0);
-};
-
-// ----------------------------------------------------------------------------
-
-}; // namespace android
-
-#endif // ANDROID_IAUDIOTRACK_H
diff --git a/include/media/IAudioTrack.h b/include/media/IAudioTrack.h
new file mode 120000
index 0000000..afa6bf4
--- /dev/null
+++ b/include/media/IAudioTrack.h
@@ -0,0 +1 @@
+../../media/libaudioclient/include/IAudioTrack.h
\ No newline at end of file
diff --git a/include/media/ICrypto.h b/include/media/ICrypto.h
deleted file mode 100644
index a4bfaf8..0000000
--- a/include/media/ICrypto.h
+++ /dev/null
@@ -1,81 +0,0 @@
-/*
- * Copyright (C) 2012 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <binder/IInterface.h>
-#include <media/stagefright/foundation/ABase.h>
-#include <media/hardware/CryptoAPI.h>
-
-#ifndef ANDROID_ICRYPTO_H_
-
-#define ANDROID_ICRYPTO_H_
-
-namespace android {
-
-struct AString;
-class IMemory;
-
-struct ICrypto : public IInterface {
-    DECLARE_META_INTERFACE(Crypto);
-
-    virtual status_t initCheck() const = 0;
-
-    virtual bool isCryptoSchemeSupported(const uint8_t uuid[16]) = 0;
-
-    virtual status_t createPlugin(
-            const uint8_t uuid[16], const void *data, size_t size) = 0;
-
-    virtual status_t destroyPlugin() = 0;
-
-    virtual bool requiresSecureDecoderComponent(
-            const char *mime) const = 0;
-
-    virtual void notifyResolution(uint32_t width, uint32_t height) = 0;
-
-    virtual status_t setMediaDrmSession(const Vector<uint8_t> &sessionId) = 0;
-
-    enum DestinationType {
-        kDestinationTypeVmPointer,    // non-secure
-        kDestinationTypeOpaqueHandle, // secure
-        kDestinationTypeNativeHandle  // secure
-    };
-
-    virtual ssize_t decrypt(
-            DestinationType dstType,
-            const uint8_t key[16],
-            const uint8_t iv[16],
-            CryptoPlugin::Mode mode,
-            const CryptoPlugin::Pattern &pattern,
-            const sp<IMemory> &sharedBuffer, size_t offset,
-            const CryptoPlugin::SubSample *subSamples, size_t numSubSamples,
-            void *dstPtr,
-            AString *errorDetailMsg) = 0;
-
-private:
-    DISALLOW_EVIL_CONSTRUCTORS(ICrypto);
-};
-
-struct BnCrypto : public BnInterface<ICrypto> {
-    virtual status_t onTransact(
-            uint32_t code, const Parcel &data, Parcel *reply,
-            uint32_t flags = 0);
-private:
-    void readVector(const Parcel &data, Vector<uint8_t> &vector) const;
-    void writeVector(Parcel *reply, Vector<uint8_t> const &vector) const;
-};
-
-}  // namespace android
-
-#endif // ANDROID_ICRYPTO_H_
diff --git a/include/media/ICrypto.h b/include/media/ICrypto.h
new file mode 120000
index 0000000..53c547a
--- /dev/null
+++ b/include/media/ICrypto.h
@@ -0,0 +1 @@
+../../media/libmedia/include/ICrypto.h
\ No newline at end of file
diff --git a/include/media/IDataSource.h b/include/media/IDataSource.h
new file mode 120000
index 0000000..7ac813f
--- /dev/null
+++ b/include/media/IDataSource.h
@@ -0,0 +1 @@
+../../media/libmedia/include/IDataSource.h
\ No newline at end of file
diff --git a/include/media/IDrm.h b/include/media/IDrm.h
deleted file mode 100644
index fd51fd0..0000000
--- a/include/media/IDrm.h
+++ /dev/null
@@ -1,140 +0,0 @@
-/*
- * Copyright (C) 2013 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <binder/IInterface.h>
-#include <media/stagefright/foundation/ABase.h>
-#include <media/drm/DrmAPI.h>
-#include <media/IDrmClient.h>
-
-#ifndef ANDROID_IDRM_H_
-
-#define ANDROID_IDRM_H_
-
-namespace android {
-
-struct AString;
-
-struct IDrm : public IInterface {
-    DECLARE_META_INTERFACE(Drm);
-
-    virtual status_t initCheck() const = 0;
-
-    virtual bool isCryptoSchemeSupported(const uint8_t uuid[16], const String8 &mimeType) = 0;
-
-    virtual status_t createPlugin(const uint8_t uuid[16]) = 0;
-
-    virtual status_t destroyPlugin() = 0;
-
-    virtual status_t openSession(Vector<uint8_t> &sessionId) = 0;
-
-    virtual status_t closeSession(Vector<uint8_t> const &sessionId) = 0;
-
-    virtual status_t
-        getKeyRequest(Vector<uint8_t> const &sessionId,
-                      Vector<uint8_t> const &initData,
-                      String8 const &mimeType, DrmPlugin::KeyType keyType,
-                      KeyedVector<String8, String8> const &optionalParameters,
-                      Vector<uint8_t> &request, String8 &defaultUrl,
-                      DrmPlugin::KeyRequestType *keyRequestType) = 0;
-
-    virtual status_t provideKeyResponse(Vector<uint8_t> const &sessionId,
-                                        Vector<uint8_t> const &response,
-                                        Vector<uint8_t> &keySetId) = 0;
-
-    virtual status_t removeKeys(Vector<uint8_t> const &keySetId) = 0;
-
-    virtual status_t restoreKeys(Vector<uint8_t> const &sessionId,
-                                 Vector<uint8_t> const &keySetId) = 0;
-
-    virtual status_t queryKeyStatus(Vector<uint8_t> const &sessionId,
-                                    KeyedVector<String8, String8> &infoMap) const = 0;
-
-    virtual status_t getProvisionRequest(String8 const &certType,
-                                         String8 const &certAuthority,
-                                         Vector<uint8_t> &request,
-                                         String8 &defaulUrl) = 0;
-
-    virtual status_t provideProvisionResponse(Vector<uint8_t> const &response,
-                                              Vector<uint8_t> &certificate,
-                                              Vector<uint8_t> &wrappedKey) = 0;
-
-    virtual status_t getSecureStops(List<Vector<uint8_t> > &secureStops) = 0;
-    virtual status_t getSecureStop(Vector<uint8_t> const &ssid, Vector<uint8_t> &secureStop) = 0;
-
-    virtual status_t releaseSecureStops(Vector<uint8_t> const &ssRelease) = 0;
-    virtual status_t releaseAllSecureStops() = 0;
-
-    virtual status_t getPropertyString(String8 const &name, String8 &value) const = 0;
-    virtual status_t getPropertyByteArray(String8 const &name,
-                                          Vector<uint8_t> &value) const = 0;
-    virtual status_t setPropertyString(String8 const &name,
-                                       String8 const &value ) const = 0;
-    virtual status_t setPropertyByteArray(String8 const &name,
-                                          Vector<uint8_t> const &value) const = 0;
-
-    virtual status_t setCipherAlgorithm(Vector<uint8_t> const &sessionId,
-                                        String8 const &algorithm) = 0;
-
-    virtual status_t setMacAlgorithm(Vector<uint8_t> const &sessionId,
-                                     String8 const &algorithm) = 0;
-
-    virtual status_t encrypt(Vector<uint8_t> const &sessionId,
-                             Vector<uint8_t> const &keyId,
-                             Vector<uint8_t> const &input,
-                             Vector<uint8_t> const &iv,
-                             Vector<uint8_t> &output) = 0;
-
-    virtual status_t decrypt(Vector<uint8_t> const &sessionId,
-                             Vector<uint8_t> const &keyId,
-                             Vector<uint8_t> const &input,
-                             Vector<uint8_t> const &iv,
-                             Vector<uint8_t> &output) = 0;
-
-    virtual status_t sign(Vector<uint8_t> const &sessionId,
-                          Vector<uint8_t> const &keyId,
-                          Vector<uint8_t> const &message,
-                          Vector<uint8_t> &signature) = 0;
-
-    virtual status_t verify(Vector<uint8_t> const &sessionId,
-                            Vector<uint8_t> const &keyId,
-                            Vector<uint8_t> const &message,
-                            Vector<uint8_t> const &signature,
-                            bool &match) = 0;
-
-    virtual status_t signRSA(Vector<uint8_t> const &sessionId,
-                             String8 const &algorithm,
-                             Vector<uint8_t> const &message,
-                             Vector<uint8_t> const &wrappedKey,
-                             Vector<uint8_t> &signature) = 0;
-
-    virtual status_t setListener(const sp<IDrmClient>& listener) = 0;
-
-private:
-    DISALLOW_EVIL_CONSTRUCTORS(IDrm);
-};
-
-struct BnDrm : public BnInterface<IDrm> {
-    virtual status_t onTransact(
-            uint32_t code, const Parcel &data, Parcel *reply,
-            uint32_t flags = 0);
-private:
-    void readVector(const Parcel &data, Vector<uint8_t> &vector) const;
-    void writeVector(Parcel *reply, Vector<uint8_t> const &vector) const;
-};
-
-}  // namespace android
-
-#endif // ANDROID_IDRM_H_
diff --git a/include/media/IDrm.h b/include/media/IDrm.h
new file mode 120000
index 0000000..eb2f0ec
--- /dev/null
+++ b/include/media/IDrm.h
@@ -0,0 +1 @@
+../../media/libmedia/include/IDrm.h
\ No newline at end of file
diff --git a/include/media/IDrmClient.h b/include/media/IDrmClient.h
new file mode 120000
index 0000000..4d8b50c
--- /dev/null
+++ b/include/media/IDrmClient.h
@@ -0,0 +1 @@
+../../media/libmedia/include/IDrmClient.h
\ No newline at end of file
diff --git a/include/media/IEffect.h b/include/media/IEffect.h
new file mode 120000
index 0000000..72d715d
--- /dev/null
+++ b/include/media/IEffect.h
@@ -0,0 +1 @@
+../../media/libaudioclient/include/IEffect.h
\ No newline at end of file
diff --git a/include/media/IEffectClient.h b/include/media/IEffectClient.h
new file mode 120000
index 0000000..0614d8a
--- /dev/null
+++ b/include/media/IEffectClient.h
@@ -0,0 +1 @@
+../../media/libaudioclient/include/IEffectClient.h
\ No newline at end of file
diff --git a/include/media/IHDCP.h b/include/media/IHDCP.h
new file mode 120000
index 0000000..f1e112e
--- /dev/null
+++ b/include/media/IHDCP.h
@@ -0,0 +1 @@
+../../media/libmedia/include/IHDCP.h
\ No newline at end of file
diff --git a/include/media/IMediaAnalyticsService.h b/include/media/IMediaAnalyticsService.h
new file mode 120000
index 0000000..97915e4
--- /dev/null
+++ b/include/media/IMediaAnalyticsService.h
@@ -0,0 +1 @@
+../../media/libmedia/include/IMediaAnalyticsService.h
\ No newline at end of file
diff --git a/include/media/IMediaCodecList.h b/include/media/IMediaCodecList.h
new file mode 120000
index 0000000..2e30503
--- /dev/null
+++ b/include/media/IMediaCodecList.h
@@ -0,0 +1 @@
+../../media/libmedia/include/IMediaCodecList.h
\ No newline at end of file
diff --git a/include/media/IMediaCodecService.h b/include/media/IMediaCodecService.h
deleted file mode 100644
index 984a0fd..0000000
--- a/include/media/IMediaCodecService.h
+++ /dev/null
@@ -1,45 +0,0 @@
-/*
- * Copyright (C) 2015 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_IMEDIACODECSERVICE_H
-#define ANDROID_IMEDIACODECSERVICE_H
-
-#include <binder/IInterface.h>
-#include <binder/IMemory.h>
-#include <binder/Parcel.h>
-#include <media/IDataSource.h>
-#include <include/OMX.h>
-
-namespace android {
-
-class IMediaCodecService: public IInterface
-{
-public:
-    DECLARE_META_INTERFACE(MediaCodecService);
-
-    virtual sp<IOMX> getOMX() = 0;
-};
-
-class BnMediaCodecService: public BnInterface<IMediaCodecService>
-{
-public:
-    virtual status_t    onTransact(uint32_t code, const Parcel& data, Parcel* reply,
-                                uint32_t flags = 0);
-};
-
-}   // namespace android
-
-#endif  // ANDROID_IMEDIACODECSERVICE_H
diff --git a/include/media/IMediaCodecService.h b/include/media/IMediaCodecService.h
new file mode 120000
index 0000000..5103277
--- /dev/null
+++ b/include/media/IMediaCodecService.h
@@ -0,0 +1 @@
+../../media/libmedia/include/IMediaCodecService.h
\ No newline at end of file
diff --git a/include/media/IMediaDeathNotifier.h b/include/media/IMediaDeathNotifier.h
new file mode 120000
index 0000000..74b1656
--- /dev/null
+++ b/include/media/IMediaDeathNotifier.h
@@ -0,0 +1 @@
+../../media/libmedia/include/IMediaDeathNotifier.h
\ No newline at end of file
diff --git a/include/media/IMediaDrmService.h b/include/media/IMediaDrmService.h
new file mode 120000
index 0000000..6efbc48
--- /dev/null
+++ b/include/media/IMediaDrmService.h
@@ -0,0 +1 @@
+../../media/libmedia/include/IMediaDrmService.h
\ No newline at end of file
diff --git a/include/media/IMediaExtractor.h b/include/media/IMediaExtractor.h
deleted file mode 100644
index 34b15e9..0000000
--- a/include/media/IMediaExtractor.h
+++ /dev/null
@@ -1,87 +0,0 @@
-/*
- * Copyright (C) 2009 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef IMEDIA_EXTRACTOR_BASE_H_
-
-#define IMEDIA_EXTRACTOR_BASE_H_
-
-#include <media/IMediaSource.h>
-#include <media/stagefright/DataSource.h>
-
-namespace android {
-
-class MetaData;
-
-class IMediaExtractor : public IInterface {
-public:
-    DECLARE_META_INTERFACE(MediaExtractor);
-
-    virtual size_t countTracks() = 0;
-    virtual sp<IMediaSource> getTrack(size_t index) = 0;
-
-    enum GetTrackMetaDataFlags {
-        kIncludeExtensiveMetaData = 1
-    };
-    virtual sp<MetaData> getTrackMetaData(
-            size_t index, uint32_t flags = 0) = 0;
-
-    // Return container specific meta-data. The default implementation
-    // returns an empty metadata object.
-    virtual sp<MetaData> getMetaData() = 0;
-
-    enum Flags {
-        CAN_SEEK_BACKWARD  = 1,  // the "seek 10secs back button"
-        CAN_SEEK_FORWARD   = 2,  // the "seek 10secs forward button"
-        CAN_PAUSE          = 4,
-        CAN_SEEK           = 8,  // the "seek bar"
-    };
-
-    // If subclasses do _not_ override this, the default is
-    // CAN_SEEK_BACKWARD | CAN_SEEK_FORWARD | CAN_SEEK | CAN_PAUSE
-    virtual uint32_t flags() const = 0;
-
-    // for DRM
-    virtual void setDrmFlag(bool flag) = 0;
-    virtual bool getDrmFlag() = 0;
-    virtual char* getDrmTrackInfo(size_t trackID, int *len)  = 0;
-    virtual void setUID(uid_t uid)  = 0;
-
-    virtual const char * name() = 0;
-};
-
-
-class BnMediaExtractor: public BnInterface<IMediaExtractor>
-{
-public:
-    virtual status_t    onTransact(uint32_t code, const Parcel& data, Parcel* reply,
-                                uint32_t flags = 0);
-};
-
-void registerMediaExtractor(
-        const sp<IMediaExtractor> &extractor,
-        const sp<DataSource> &source,
-        const char *mime);
-
-void registerMediaSource(
-        const sp<IMediaExtractor> &extractor,
-        const sp<IMediaSource> &source);
-
-status_t dumpExtractors(int fd, const Vector<String16>& args);
-
-
-}  // namespace android
-
-#endif  // IMEDIA_EXTRACTOR_BASE_H_
diff --git a/include/media/IMediaExtractor.h b/include/media/IMediaExtractor.h
new file mode 120000
index 0000000..c17c4eb
--- /dev/null
+++ b/include/media/IMediaExtractor.h
@@ -0,0 +1 @@
+../../media/libmedia/include/IMediaExtractor.h
\ No newline at end of file
diff --git a/include/media/IMediaExtractorService.h b/include/media/IMediaExtractorService.h
new file mode 120000
index 0000000..1e6e8b4
--- /dev/null
+++ b/include/media/IMediaExtractorService.h
@@ -0,0 +1 @@
+../../media/libmedia/include/IMediaExtractorService.h
\ No newline at end of file
diff --git a/include/media/IMediaHTTPConnection.h b/include/media/IMediaHTTPConnection.h
new file mode 120000
index 0000000..9e544fe
--- /dev/null
+++ b/include/media/IMediaHTTPConnection.h
@@ -0,0 +1 @@
+../../media/libmedia/include/IMediaHTTPConnection.h
\ No newline at end of file
diff --git a/include/media/IMediaHTTPService.h b/include/media/IMediaHTTPService.h
new file mode 120000
index 0000000..6312e06
--- /dev/null
+++ b/include/media/IMediaHTTPService.h
@@ -0,0 +1 @@
+../../media/libmedia/include/IMediaHTTPService.h
\ No newline at end of file
diff --git a/include/media/IMediaLogService.h b/include/media/IMediaLogService.h
index 1f5777e..0f09e0d 100644
--- a/include/media/IMediaLogService.h
+++ b/include/media/IMediaLogService.h
@@ -30,6 +30,7 @@
 
     virtual void    registerWriter(const sp<IMemory>& shared, size_t size, const char *name) = 0;
     virtual void    unregisterWriter(const sp<IMemory>& shared) = 0;
+    virtual void    requestMergeWakeup() = 0;
 
 };
 
diff --git a/include/media/IMediaMetadataRetriever.h b/include/media/IMediaMetadataRetriever.h
new file mode 120000
index 0000000..c2dd811
--- /dev/null
+++ b/include/media/IMediaMetadataRetriever.h
@@ -0,0 +1 @@
+../../media/libmedia/include/IMediaMetadataRetriever.h
\ No newline at end of file
diff --git a/include/media/IMediaPlayer.h b/include/media/IMediaPlayer.h
deleted file mode 100644
index 0fd8933..0000000
--- a/include/media/IMediaPlayer.h
+++ /dev/null
@@ -1,127 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_IMEDIAPLAYER_H
-#define ANDROID_IMEDIAPLAYER_H
-
-#include <utils/RefBase.h>
-#include <binder/IInterface.h>
-#include <binder/Parcel.h>
-#include <utils/KeyedVector.h>
-#include <system/audio.h>
-
-// Fwd decl to make sure everyone agrees that the scope of struct sockaddr_in is
-// global, and not in android::
-struct sockaddr_in;
-
-namespace android {
-
-class Parcel;
-class Surface;
-class IDataSource;
-struct IStreamSource;
-class IGraphicBufferProducer;
-struct IMediaHTTPService;
-struct AudioPlaybackRate;
-struct AVSyncSettings;
-
-class IMediaPlayer: public IInterface
-{
-public:
-    DECLARE_META_INTERFACE(MediaPlayer);
-
-    virtual void            disconnect() = 0;
-
-    virtual status_t        setDataSource(
-            const sp<IMediaHTTPService> &httpService,
-            const char *url,
-            const KeyedVector<String8, String8>* headers) = 0;
-
-    virtual status_t        setDataSource(int fd, int64_t offset, int64_t length) = 0;
-    virtual status_t        setDataSource(const sp<IStreamSource>& source) = 0;
-    virtual status_t        setDataSource(const sp<IDataSource>& source) = 0;
-    virtual status_t        setVideoSurfaceTexture(
-                                    const sp<IGraphicBufferProducer>& bufferProducer) = 0;
-    virtual status_t        prepareAsync() = 0;
-    virtual status_t        start() = 0;
-    virtual status_t        stop() = 0;
-    virtual status_t        pause() = 0;
-    virtual status_t        isPlaying(bool* state) = 0;
-    virtual status_t        setPlaybackSettings(const AudioPlaybackRate& rate) = 0;
-    virtual status_t        getPlaybackSettings(AudioPlaybackRate* rate /* nonnull */) = 0;
-    virtual status_t        setSyncSettings(const AVSyncSettings& sync, float videoFpsHint) = 0;
-    virtual status_t        getSyncSettings(AVSyncSettings* sync /* nonnull */,
-                                            float* videoFps /* nonnull */) = 0;
-    virtual status_t        seekTo(int msec) = 0;
-    virtual status_t        getCurrentPosition(int* msec) = 0;
-    virtual status_t        getDuration(int* msec) = 0;
-    virtual status_t        reset() = 0;
-    virtual status_t        setAudioStreamType(audio_stream_type_t type) = 0;
-    virtual status_t        setLooping(int loop) = 0;
-    virtual status_t        setVolume(float leftVolume, float rightVolume) = 0;
-    virtual status_t        setAuxEffectSendLevel(float level) = 0;
-    virtual status_t        attachAuxEffect(int effectId) = 0;
-    virtual status_t        setParameter(int key, const Parcel& request) = 0;
-    virtual status_t        getParameter(int key, Parcel* reply) = 0;
-    virtual status_t        setRetransmitEndpoint(const struct sockaddr_in* endpoint) = 0;
-    virtual status_t        getRetransmitEndpoint(struct sockaddr_in* endpoint) = 0;
-    virtual status_t        setNextPlayer(const sp<IMediaPlayer>& next) = 0;
-
-    // Invoke a generic method on the player by using opaque parcels
-    // for the request and reply.
-    // @param request Parcel that must start with the media player
-    // interface token.
-    // @param[out] reply Parcel to hold the reply data. Cannot be null.
-    // @return OK if the invocation was made successfully.
-    virtual status_t        invoke(const Parcel& request, Parcel *reply) = 0;
-
-    // Set a new metadata filter.
-    // @param filter A set of allow and drop rules serialized in a Parcel.
-    // @return OK if the invocation was made successfully.
-    virtual status_t        setMetadataFilter(const Parcel& filter) = 0;
-
-    // Retrieve a set of metadata.
-    // @param update_only Include only the metadata that have changed
-    //                    since the last invocation of getMetadata.
-    //                    The set is built using the unfiltered
-    //                    notifications the native player sent to the
-    //                    MediaPlayerService during that period of
-    //                    time. If false, all the metadatas are considered.
-    // @param apply_filter If true, once the metadata set has been built based
-    //                     on the value update_only, the current filter is
-    //                     applied.
-    // @param[out] metadata On exit contains a set (possibly empty) of metadata.
-    //                      Valid only if the call returned OK.
-    // @return OK if the invocation was made successfully.
-    virtual status_t        getMetadata(bool update_only,
-                                        bool apply_filter,
-                                        Parcel *metadata) = 0;
-};
-
-// ----------------------------------------------------------------------------
-
-class BnMediaPlayer: public BnInterface<IMediaPlayer>
-{
-public:
-    virtual status_t    onTransact( uint32_t code,
-                                    const Parcel& data,
-                                    Parcel* reply,
-                                    uint32_t flags = 0);
-};
-
-}; // namespace android
-
-#endif // ANDROID_IMEDIAPLAYER_H
diff --git a/include/media/IMediaPlayer.h b/include/media/IMediaPlayer.h
new file mode 120000
index 0000000..a38baf4
--- /dev/null
+++ b/include/media/IMediaPlayer.h
@@ -0,0 +1 @@
+../../media/libmedia/include/IMediaPlayer.h
\ No newline at end of file
diff --git a/include/media/IMediaPlayerClient.h b/include/media/IMediaPlayerClient.h
new file mode 120000
index 0000000..1c27dee
--- /dev/null
+++ b/include/media/IMediaPlayerClient.h
@@ -0,0 +1 @@
+../../media/libmedia/include/IMediaPlayerClient.h
\ No newline at end of file
diff --git a/include/media/IMediaPlayerService.h b/include/media/IMediaPlayerService.h
new file mode 120000
index 0000000..08a6a98
--- /dev/null
+++ b/include/media/IMediaPlayerService.h
@@ -0,0 +1 @@
+../../media/libmedia/include/IMediaPlayerService.h
\ No newline at end of file
diff --git a/include/media/IMediaRecorder.h b/include/media/IMediaRecorder.h
deleted file mode 100644
index 68a65f0..0000000
--- a/include/media/IMediaRecorder.h
+++ /dev/null
@@ -1,80 +0,0 @@
-/*
- **
- ** Copyright 2008, The Android Open Source Project
- **
- ** Licensed under the Apache License, Version 2.0 (the "License");
- ** you may not use this file except in compliance with the License.
- ** You may obtain a copy of the License at
- **
- **     http://www.apache.org/licenses/LICENSE-2.0
- **
- ** Unless required by applicable law or agreed to in writing, software
- ** distributed under the License is distributed on an "AS IS" BASIS,
- ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- ** See the License for the specific language governing permissions and
- ** limitations under the License.
- */
-
-#ifndef ANDROID_IMEDIARECORDER_H
-#define ANDROID_IMEDIARECORDER_H
-
-#include <binder/IInterface.h>
-
-namespace android {
-
-class Surface;
-namespace hardware {
-class ICamera;
-}
-class ICameraRecordingProxy;
-class IMediaRecorderClient;
-class IGraphicBufferConsumer;
-class IGraphicBufferProducer;
-
-class IMediaRecorder: public IInterface
-{
-public:
-    DECLARE_META_INTERFACE(MediaRecorder);
-
-    virtual status_t setCamera(const sp<hardware::ICamera>& camera,
-                               const sp<ICameraRecordingProxy>& proxy) = 0;
-    virtual status_t setPreviewSurface(const sp<IGraphicBufferProducer>& surface) = 0;
-    virtual status_t setVideoSource(int vs) = 0;
-    virtual status_t setAudioSource(int as) = 0;
-    virtual status_t setOutputFormat(int of) = 0;
-    virtual status_t setVideoEncoder(int ve) = 0;
-    virtual status_t setAudioEncoder(int ae) = 0;
-    virtual status_t setOutputFile(int fd, int64_t offset, int64_t length) = 0;
-    virtual status_t setVideoSize(int width, int height) = 0;
-    virtual status_t setVideoFrameRate(int frames_per_second) = 0;
-    virtual status_t setParameters(const String8& params) = 0;
-    virtual status_t setListener(const sp<IMediaRecorderClient>& listener) = 0;
-    virtual status_t setClientName(const String16& clientName) = 0;
-    virtual status_t prepare() = 0;
-    virtual status_t getMaxAmplitude(int* max) = 0;
-    virtual status_t start() = 0;
-    virtual status_t stop() = 0;
-    virtual status_t reset() = 0;
-    virtual status_t pause() = 0;
-    virtual status_t resume() = 0;
-    virtual status_t init() = 0;
-    virtual status_t close() = 0;
-    virtual status_t release() = 0;
-    virtual status_t setInputSurface(const sp<IGraphicBufferConsumer>& surface) = 0;
-    virtual sp<IGraphicBufferProducer> querySurfaceMediaSource() = 0;
-};
-
-// ----------------------------------------------------------------------------
-
-class BnMediaRecorder: public BnInterface<IMediaRecorder>
-{
-public:
-    virtual status_t    onTransact( uint32_t code,
-                                    const Parcel& data,
-                                    Parcel* reply,
-                                    uint32_t flags = 0);
-};
-
-}; // namespace android
-
-#endif // ANDROID_IMEDIARECORDER_H
diff --git a/include/media/IMediaRecorder.h b/include/media/IMediaRecorder.h
new file mode 120000
index 0000000..c8b8b29
--- /dev/null
+++ b/include/media/IMediaRecorder.h
@@ -0,0 +1 @@
+../../media/libmedia/include/IMediaRecorder.h
\ No newline at end of file
diff --git a/include/media/IMediaRecorderClient.h b/include/media/IMediaRecorderClient.h
new file mode 120000
index 0000000..ab703aa
--- /dev/null
+++ b/include/media/IMediaRecorderClient.h
@@ -0,0 +1 @@
+../../media/libmedia/include/IMediaRecorderClient.h
\ No newline at end of file
diff --git a/include/media/IMediaSource.h b/include/media/IMediaSource.h
new file mode 120000
index 0000000..1c3d8fe
--- /dev/null
+++ b/include/media/IMediaSource.h
@@ -0,0 +1 @@
+../../media/libmedia/include/IMediaSource.h
\ No newline at end of file
diff --git a/include/media/IOMX.h b/include/media/IOMX.h
deleted file mode 100644
index ffa6d6d..0000000
--- a/include/media/IOMX.h
+++ /dev/null
@@ -1,295 +0,0 @@
-/*
- * Copyright (C) 2009 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_IOMX_H_
-
-#define ANDROID_IOMX_H_
-
-#include <binder/IInterface.h>
-#include <gui/IGraphicBufferProducer.h>
-#include <gui/IGraphicBufferConsumer.h>
-#include <ui/GraphicBuffer.h>
-#include <utils/List.h>
-#include <utils/String8.h>
-
-#include <list>
-
-#include <media/hardware/MetadataBufferType.h>
-
-#include <OMX_Core.h>
-#include <OMX_Video.h>
-
-namespace android {
-
-class IMemory;
-class IOMXObserver;
-class IOMXRenderer;
-class NativeHandle;
-class Surface;
-
-class IOMX : public IInterface {
-public:
-    DECLARE_META_INTERFACE(OMX);
-
-    typedef uint32_t buffer_id;
-    typedef uint32_t node_id;
-
-    // Given a node_id and the calling process' pid, returns true iff
-    // the implementation of the OMX interface lives in the same
-    // process.
-    virtual bool livesLocally(node_id node, pid_t pid) = 0;
-
-    struct ComponentInfo {
-        String8 mName;
-        List<String8> mRoles;
-    };
-    virtual status_t listNodes(List<ComponentInfo> *list) = 0;
-
-    virtual status_t allocateNode(
-            const char *name, const sp<IOMXObserver> &observer,
-            sp<IBinder> *nodeBinder,
-            node_id *node) = 0;
-
-    virtual status_t freeNode(node_id node) = 0;
-
-    virtual status_t sendCommand(
-            node_id node, OMX_COMMANDTYPE cmd, OMX_S32 param) = 0;
-
-    virtual status_t getParameter(
-            node_id node, OMX_INDEXTYPE index,
-            void *params, size_t size) = 0;
-
-    virtual status_t setParameter(
-            node_id node, OMX_INDEXTYPE index,
-            const void *params, size_t size) = 0;
-
-    virtual status_t getConfig(
-            node_id node, OMX_INDEXTYPE index,
-            void *params, size_t size) = 0;
-
-    virtual status_t setConfig(
-            node_id node, OMX_INDEXTYPE index,
-            const void *params, size_t size) = 0;
-
-    virtual status_t getState(
-            node_id node, OMX_STATETYPE* state) = 0;
-
-    // This will set *type to previous metadata buffer type on OMX error (not on binder error), and
-    // new metadata buffer type on success.
-    virtual status_t storeMetaDataInBuffers(
-            node_id node, OMX_U32 port_index, OMX_BOOL enable, MetadataBufferType *type = NULL) = 0;
-
-    virtual status_t prepareForAdaptivePlayback(
-            node_id node, OMX_U32 portIndex, OMX_BOOL enable,
-            OMX_U32 maxFrameWidth, OMX_U32 maxFrameHeight) = 0;
-
-    virtual status_t configureVideoTunnelMode(
-            node_id node, OMX_U32 portIndex, OMX_BOOL tunneled,
-            OMX_U32 audioHwSync, native_handle_t **sidebandHandle) = 0;
-
-    virtual status_t enableNativeBuffers(
-            node_id node, OMX_U32 port_index, OMX_BOOL graphic, OMX_BOOL enable) = 0;
-
-    virtual status_t getGraphicBufferUsage(
-            node_id node, OMX_U32 port_index, OMX_U32* usage) = 0;
-
-    // Use |params| as an OMX buffer, but limit the size of the OMX buffer to |allottedSize|.
-    virtual status_t useBuffer(
-            node_id node, OMX_U32 port_index, const sp<IMemory> &params,
-            buffer_id *buffer, OMX_U32 allottedSize) = 0;
-
-    virtual status_t useGraphicBuffer(
-            node_id node, OMX_U32 port_index,
-            const sp<GraphicBuffer> &graphicBuffer, buffer_id *buffer) = 0;
-
-    virtual status_t updateGraphicBufferInMeta(
-            node_id node, OMX_U32 port_index,
-            const sp<GraphicBuffer> &graphicBuffer, buffer_id buffer) = 0;
-
-    virtual status_t updateNativeHandleInMeta(
-            node_id node, OMX_U32 port_index,
-            const sp<NativeHandle> &nativeHandle, buffer_id buffer) = 0;
-
-    // This will set *type to resulting metadata buffer type on OMX error (not on binder error) as
-    // well as on success.
-    virtual status_t createInputSurface(
-            node_id node, OMX_U32 port_index, android_dataspace dataSpace,
-            sp<IGraphicBufferProducer> *bufferProducer,
-            MetadataBufferType *type = NULL) = 0;
-
-    virtual status_t createPersistentInputSurface(
-            sp<IGraphicBufferProducer> *bufferProducer,
-            sp<IGraphicBufferConsumer> *bufferConsumer) = 0;
-
-    // This will set *type to resulting metadata buffer type on OMX error (not on binder error) as
-    // well as on success.
-    virtual status_t setInputSurface(
-            node_id node, OMX_U32 port_index,
-            const sp<IGraphicBufferConsumer> &bufferConsumer,
-            MetadataBufferType *type) = 0;
-
-    virtual status_t signalEndOfInputStream(node_id node) = 0;
-
-    // Allocate an opaque buffer as a native handle. If component supports returning native
-    // handles, those are returned in *native_handle. Otherwise, the allocated buffer is
-    // returned in *buffer_data. This clearly only makes sense if the caller lives in the
-    // same process as the callee, i.e. is the media_server, as the returned "buffer_data"
-    // pointer is just that, a pointer into local address space.
-    virtual status_t allocateSecureBuffer(
-            node_id node, OMX_U32 port_index, size_t size,
-            buffer_id *buffer, void **buffer_data, sp<NativeHandle> *native_handle) = 0;
-
-    // Allocate an OMX buffer of size |allotedSize|. Use |params| as the backup buffer, which
-    // may be larger.
-    virtual status_t allocateBufferWithBackup(
-            node_id node, OMX_U32 port_index, const sp<IMemory> &params,
-            buffer_id *buffer, OMX_U32 allottedSize) = 0;
-
-    virtual status_t freeBuffer(
-            node_id node, OMX_U32 port_index, buffer_id buffer) = 0;
-
-    enum {
-        kFenceTimeoutMs = 1000
-    };
-    // Calls OMX_FillBuffer on buffer, and passes |fenceFd| to component if it supports
-    // fences. Otherwise, it waits on |fenceFd| before calling OMX_FillBuffer.
-    // Takes ownership of |fenceFd| even if this call fails.
-    virtual status_t fillBuffer(node_id node, buffer_id buffer, int fenceFd = -1) = 0;
-
-    // Calls OMX_EmptyBuffer on buffer (after updating buffer header with |range_offset|,
-    // |range_length|, |flags| and |timestamp|). Passes |fenceFd| to component if it
-    // supports fences. Otherwise, it waits on |fenceFd| before calling OMX_EmptyBuffer.
-    // Takes ownership of |fenceFd| even if this call fails.
-    virtual status_t emptyBuffer(
-            node_id node,
-            buffer_id buffer,
-            OMX_U32 range_offset, OMX_U32 range_length,
-            OMX_U32 flags, OMX_TICKS timestamp, int fenceFd = -1) = 0;
-
-    virtual status_t getExtensionIndex(
-            node_id node,
-            const char *parameter_name,
-            OMX_INDEXTYPE *index) = 0;
-
-    enum InternalOptionType {
-        INTERNAL_OPTION_SUSPEND,  // data is a bool
-        INTERNAL_OPTION_REPEAT_PREVIOUS_FRAME_DELAY,  // data is an int64_t
-        INTERNAL_OPTION_MAX_TIMESTAMP_GAP, // data is int64_t
-        INTERNAL_OPTION_MAX_FPS, // data is float
-        INTERNAL_OPTION_START_TIME, // data is an int64_t
-        INTERNAL_OPTION_TIME_LAPSE, // data is an int64_t[2]
-        INTERNAL_OPTION_COLOR_ASPECTS, // data is ColorAspects
-        INTERNAL_OPTION_TIME_OFFSET, // data is an int64_t
-    };
-    virtual status_t setInternalOption(
-            node_id node,
-            OMX_U32 port_index,
-            InternalOptionType type,
-            const void *data,
-            size_t size) = 0;
-};
-
-struct omx_message {
-    enum {
-        EVENT,
-        EMPTY_BUFFER_DONE,
-        FILL_BUFFER_DONE,
-        FRAME_RENDERED,
-    } type;
-
-    IOMX::node_id node;
-    int fenceFd; // used for EMPTY_BUFFER_DONE and FILL_BUFFER_DONE; client must close this
-
-    union {
-        // if type == EVENT
-        struct {
-            OMX_EVENTTYPE event;
-            OMX_U32 data1;
-            OMX_U32 data2;
-        } event_data;
-
-        // if type == EMPTY_BUFFER_DONE
-        struct {
-            IOMX::buffer_id buffer;
-        } buffer_data;
-
-        // if type == FILL_BUFFER_DONE
-        struct {
-            IOMX::buffer_id buffer;
-            OMX_U32 range_offset;
-            OMX_U32 range_length;
-            OMX_U32 flags;
-            OMX_TICKS timestamp;
-        } extended_buffer_data;
-
-        // if type == FRAME_RENDERED
-        struct {
-            OMX_TICKS timestamp;
-            OMX_S64 nanoTime;
-        } render_data;
-    } u;
-};
-
-class IOMXObserver : public IInterface {
-public:
-    DECLARE_META_INTERFACE(OMXObserver);
-
-    // Handle (list of) messages.
-    virtual void onMessages(const std::list<omx_message> &messages) = 0;
-};
-
-////////////////////////////////////////////////////////////////////////////////
-
-class BnOMX : public BnInterface<IOMX> {
-public:
-    virtual status_t onTransact(
-            uint32_t code, const Parcel &data, Parcel *reply,
-            uint32_t flags = 0);
-
-protected:
-    // check if the codec is secure.
-    virtual bool isSecure(IOMX::node_id /*node*/) {
-        return false;
-    }
-};
-
-class BnOMXObserver : public BnInterface<IOMXObserver> {
-public:
-    virtual status_t onTransact(
-            uint32_t code, const Parcel &data, Parcel *reply,
-            uint32_t flags = 0);
-};
-
-struct CodecProfileLevel {
-    OMX_U32 mProfile;
-    OMX_U32 mLevel;
-};
-
-inline static const char *asString(MetadataBufferType i, const char *def = "??") {
-    using namespace android;
-    switch (i) {
-        case kMetadataBufferTypeCameraSource:   return "CameraSource";
-        case kMetadataBufferTypeGrallocSource:  return "GrallocSource";
-        case kMetadataBufferTypeANWBuffer:      return "ANWBuffer";
-        case kMetadataBufferTypeNativeHandleSource: return "NativeHandleSource";
-        case kMetadataBufferTypeInvalid:        return "Invalid";
-        default:                                return def;
-    }
-}
-
-}  // namespace android
-
-#endif  // ANDROID_IOMX_H_
diff --git a/include/media/IOMX.h b/include/media/IOMX.h
new file mode 120000
index 0000000..989d9b2
--- /dev/null
+++ b/include/media/IOMX.h
@@ -0,0 +1 @@
+../../media/libmedia/include/IOMX.h
\ No newline at end of file
diff --git a/include/media/IRemoteDisplay.h b/include/media/IRemoteDisplay.h
new file mode 120000
index 0000000..5aa58b9
--- /dev/null
+++ b/include/media/IRemoteDisplay.h
@@ -0,0 +1 @@
+../../media/libmedia/include/IRemoteDisplay.h
\ No newline at end of file
diff --git a/include/media/IRemoteDisplayClient.h b/include/media/IRemoteDisplayClient.h
new file mode 120000
index 0000000..2d212e7
--- /dev/null
+++ b/include/media/IRemoteDisplayClient.h
@@ -0,0 +1 @@
+../../media/libmedia/include/IRemoteDisplayClient.h
\ No newline at end of file
diff --git a/include/media/IResourceManagerClient.h b/include/media/IResourceManagerClient.h
new file mode 120000
index 0000000..1531ae2
--- /dev/null
+++ b/include/media/IResourceManagerClient.h
@@ -0,0 +1 @@
+../../media/libmedia/include/IResourceManagerClient.h
\ No newline at end of file
diff --git a/include/media/IResourceManagerService.h b/include/media/IResourceManagerService.h
new file mode 120000
index 0000000..007aecb
--- /dev/null
+++ b/include/media/IResourceManagerService.h
@@ -0,0 +1 @@
+../../media/libmedia/include/IResourceManagerService.h
\ No newline at end of file
diff --git a/include/media/IStreamSource.h b/include/media/IStreamSource.h
new file mode 120000
index 0000000..90dbbf2
--- /dev/null
+++ b/include/media/IStreamSource.h
@@ -0,0 +1 @@
+../../media/libmedia/include/IStreamSource.h
\ No newline at end of file
diff --git a/include/media/Interpolator.h b/include/media/Interpolator.h
new file mode 100644
index 0000000..1b26b87
--- /dev/null
+++ b/include/media/Interpolator.h
@@ -0,0 +1,331 @@
+/*
+ * Copyright 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_INTERPOLATOR_H
+#define ANDROID_INTERPOLATOR_H
+
+#include <map>
+#include <sstream>
+#include <unordered_map>
+
+#include <binder/Parcel.h>
+#include <utils/RefBase.h>
+
+#pragma push_macro("LOG_TAG")
+#undef LOG_TAG
+#define LOG_TAG "Interpolator"
+
+namespace android {
+
+/*
+ * A general purpose spline interpolator class which takes a set of points
+ * and performs interpolation.  This is used for the VolumeShaper class.
+ */
+
+template <typename S, typename T>
+class Interpolator : public std::map<S, T> {
+public:
+    // Polynomial spline interpolators
+    // Extend only at the end of enum, as this must match order in VolumeShapers.java.
+    enum InterpolatorType : int32_t {
+        INTERPOLATOR_TYPE_STEP,   // Not continuous
+        INTERPOLATOR_TYPE_LINEAR, // C0
+        INTERPOLATOR_TYPE_CUBIC,  // C1
+        INTERPOLATOR_TYPE_CUBIC_MONOTONIC, // C1 (to provide locally monotonic curves)
+        // INTERPOLATOR_TYPE_CUBIC_C2, // TODO - requires global computation / cache
+    };
+
+    explicit Interpolator(
+            InterpolatorType interpolatorType = INTERPOLATOR_TYPE_LINEAR,
+            bool cache = true)
+        : mCache(cache)
+        , mFirstSlope(0)
+        , mLastSlope(0) {
+        setInterpolatorType(interpolatorType);
+    }
+
+    std::pair<S, T> first() const {
+        return *this->begin();
+    }
+
+    std::pair<S, T> last() const {
+        return *this->rbegin();
+    }
+
+    // find the corresponding Y point from a X point.
+    T findY(S x) { // logically const, but modifies cache
+        auto high = this->lower_bound(x);
+        // greater than last point
+        if (high == this->end()) {
+            return this->rbegin()->second;
+        }
+        // at or before first point
+        if (high == this->begin()) {
+            return high->second;
+        }
+        // go lower.
+        auto low = high;
+        --low;
+
+        // now that we have two adjacent points:
+        switch (mInterpolatorType) {
+        case INTERPOLATOR_TYPE_STEP:
+            return high->first == x ? high->second : low->second;
+        case INTERPOLATOR_TYPE_LINEAR:
+            return ((high->first - x) * low->second + (x - low->first) * high->second)
+                    / (high->first - low->first);
+        case INTERPOLATOR_TYPE_CUBIC:
+        case INTERPOLATOR_TYPE_CUBIC_MONOTONIC:
+        default: {
+            // See https://en.wikipedia.org/wiki/Cubic_Hermite_spline
+
+            const S interval =  high->first - low->first;
+
+            // check to see if we've cached the polynomial coefficients
+            if (mMemo.count(low->first) != 0) {
+                const S t = (x - low->first) / interval;
+                const S t2 = t * t;
+                const auto &memo = mMemo[low->first];
+                return low->second + std::get<0>(memo) * t
+                        + (std::get<1>(memo) + std::get<2>(memo) * t) * t2;
+            }
+
+            // find the neighboring points (low2 < low < high < high2)
+            auto low2 = this->end();
+            if (low != this->begin()) {
+                low2 = low;
+                --low2; // decrementing this->begin() is undefined
+            }
+            auto high2 = high;
+            ++high2;
+
+            // you could have catmullRom with monotonic or
+            // non catmullRom (finite difference) with regular cubic;
+            // the choices here minimize computation.
+            bool monotonic, catmullRom;
+            if (mInterpolatorType == INTERPOLATOR_TYPE_CUBIC_MONOTONIC) {
+                monotonic = true;
+                catmullRom = false;
+            } else {
+                monotonic = false;
+                catmullRom = true;
+            }
+
+            // secants are only needed for finite difference splines or
+            // monotonic computation.
+            // we use lazy computation here - if we precompute in
+            // a single pass, duplicate secant computations may be avoided.
+            S sec, sec0, sec1;
+            if (!catmullRom || monotonic) {
+                sec = (high->second - low->second) / interval;
+                sec0 = low2 != this->end()
+                        ? (low->second - low2->second) / (low->first - low2->first)
+                        : mFirstSlope;
+                sec1 = high2 != this->end()
+                        ? (high2->second - high->second) / (high2->first - high->first)
+                        : mLastSlope;
+            }
+
+            // compute the tangent slopes at the control points
+            S m0, m1;
+            if (catmullRom) {
+                // Catmull-Rom spline
+                m0 = low2 != this->end()
+                        ? (high->second - low2->second) / (high->first - low2->first)
+                        : mFirstSlope;
+
+                m1 = high2 != this->end()
+                        ? (high2->second - low->second) / (high2->first - low->first)
+                        : mLastSlope;
+            } else {
+                // finite difference spline
+                m0 = (sec0 + sec) * 0.5;
+                m1 = (sec1 + sec) * 0.5;
+            }
+
+            if (monotonic) {
+                // https://en.wikipedia.org/wiki/Monotone_cubic_interpolation
+                // A sufficient condition for Fritsch–Carlson monotonicity is constraining
+                // (1) the normalized slopes to be within the circle of radius 3, or
+                // (2) the normalized slopes to be within the square of radius 3.
+                // Condition (2) is more generous and easier to compute.
+                const S maxSlope = 3 * sec;
+                m0 = constrainSlope(m0, maxSlope);
+                m1 = constrainSlope(m1, maxSlope);
+
+                m0 = constrainSlope(m0, 3 * sec0);
+                m1 = constrainSlope(m1, 3 * sec1);
+            }
+
+            const S t = (x - low->first) / interval;
+            const S t2 = t * t;
+            if (mCache) {
+                // convert to cubic polynomial coefficients and compute
+                m0 *= interval;
+                m1 *= interval;
+                const T dy = high->second - low->second;
+                const S c0 = low->second;
+                const S c1 = m0;
+                const S c2 = 3 * dy - 2 * m0 - m1;
+                const S c3 = m0 + m1 - 2 * dy;
+                mMemo[low->first] = std::make_tuple(c1, c2, c3);
+                return c0 + c1 * t + (c2 + c3 * t) * t2;
+            } else {
+                // classic Hermite interpolation
+                const S t3 = t2 * t;
+                const S h00 =  2 * t3 - 3 * t2     + 1;
+                const S h10 =      t3 - 2 * t2 + t    ;
+                const S h01 = -2 * t3 + 3 * t2        ;
+                const S h11 =      t3     - t2        ;
+                return h00 * low->second + (h10 * m0 + h11 * m1) * interval + h01 * high->second;
+            }
+        } // default
+        }
+    }
+
+    InterpolatorType getInterpolatorType() const {
+        return mInterpolatorType;
+    }
+
+    status_t setInterpolatorType(InterpolatorType interpolatorType) {
+        switch (interpolatorType) {
+        case INTERPOLATOR_TYPE_STEP:   // Not continuous
+        case INTERPOLATOR_TYPE_LINEAR: // C0
+        case INTERPOLATOR_TYPE_CUBIC:  // C1
+        case INTERPOLATOR_TYPE_CUBIC_MONOTONIC: // C1 + other constraints
+        // case INTERPOLATOR_TYPE_CUBIC_C2:
+            mInterpolatorType = interpolatorType;
+            return NO_ERROR;
+        default:
+            ALOGE("invalid interpolatorType: %d", interpolatorType);
+            return BAD_VALUE;
+        }
+    }
+
+    T getFirstSlope() const {
+        return mFirstSlope;
+    }
+
+    void setFirstSlope(T slope) {
+        mFirstSlope = slope;
+    }
+
+    T getLastSlope() const {
+        return mLastSlope;
+    }
+
+    void setLastSlope(T slope) {
+        mLastSlope = slope;
+    }
+
+    void clearCache() {
+        mMemo.clear();
+    }
+
+    status_t writeToParcel(Parcel *parcel) const {
+        if (parcel == nullptr) {
+            return BAD_VALUE;
+        }
+        status_t res = parcel->writeInt32(mInterpolatorType)
+                ?: parcel->writeFloat(mFirstSlope)
+                ?: parcel->writeFloat(mLastSlope)
+                ?: parcel->writeUint32((uint32_t)this->size()); // silent truncation
+        if (res != NO_ERROR) {
+            return res;
+        }
+        for (const auto &pt : *this) {
+            res = parcel->writeFloat(pt.first)
+                    ?: parcel->writeFloat(pt.second);
+            if (res != NO_ERROR) {
+                return res;
+            }
+        }
+        return NO_ERROR;
+    }
+
+    status_t readFromParcel(const Parcel &parcel) {
+        this->clear();
+        int32_t type;
+        uint32_t size;
+        status_t res = parcel.readInt32(&type)
+                        ?: parcel.readFloat(&mFirstSlope)
+                        ?: parcel.readFloat(&mLastSlope)
+                        ?: parcel.readUint32(&size)
+                        ?: setInterpolatorType((InterpolatorType)type);
+        if (res != NO_ERROR) {
+            return res;
+        }
+        // Note: We don't need to check size is within some bounds as
+        // the Parcel read will fail if size is incorrectly specified too large.
+        float lastx;
+        for (uint32_t i = 0; i < size; ++i) {
+            float x, y;
+            res = parcel.readFloat(&x)
+                    ?: parcel.readFloat(&y);
+            if (res != NO_ERROR) {
+                return res;
+            }
+            if (i > 0 && !(x > lastx) /* handle nan */
+                    || y != y /* handle nan */) {
+                // This is a std::map object which imposes sorted order
+                // automatically on emplace.
+                // Nevertheless for reading from a Parcel,
+                // we require that the points be specified monotonic in x.
+                return BAD_VALUE;
+            }
+            this->emplace(x, y);
+            lastx = x;
+        }
+        return NO_ERROR;
+    }
+
+    std::string toString() const {
+        std::stringstream ss;
+        ss << "mInterpolatorType: " << mInterpolatorType << std::endl;
+        for (const auto &pt : *this) {
+            ss << pt.first << " " << pt.second << std::endl;
+        }
+        return ss.str();
+    }
+
+private:
+    static S constrainSlope(S slope, S maxSlope) {
+        if (maxSlope > 0) {
+            slope = std::min(slope, maxSlope);
+            slope = std::max(slope, S(0)); // not globally monotonic
+        } else {
+            slope = std::max(slope, maxSlope);
+            slope = std::min(slope, S(0)); // not globally monotonic
+        }
+        return slope;
+    }
+
+    InterpolatorType mInterpolatorType;
+    bool mCache; // whether we cache spline coefficient computation
+
+    // for cubic interpolation, the boundary conditions in slope.
+    S mFirstSlope;
+    S mLastSlope;
+
+    // spline cubic polynomial coefficient cache
+    std::unordered_map<S, std::tuple<S /* c1 */, S /* c2 */, S /* c3 */>> mMemo;
+};
+
+} // namespace android
+
+#pragma pop_macro("LOG_TAG")
+
+#endif // ANDROID_INTERPOLATOR_H
diff --git a/include/media/JetPlayer.h b/include/media/JetPlayer.h
new file mode 120000
index 0000000..cabfb79
--- /dev/null
+++ b/include/media/JetPlayer.h
@@ -0,0 +1 @@
+../../media/libmedia/include/JetPlayer.h
\ No newline at end of file
diff --git a/include/media/LinearMap.h b/include/media/LinearMap.h
new file mode 120000
index 0000000..3e89686
--- /dev/null
+++ b/include/media/LinearMap.h
@@ -0,0 +1 @@
+../../media/libmedia/include/LinearMap.h
\ No newline at end of file
diff --git a/include/media/MediaAnalyticsItem.h b/include/media/MediaAnalyticsItem.h
new file mode 120000
index 0000000..71957a5
--- /dev/null
+++ b/include/media/MediaAnalyticsItem.h
@@ -0,0 +1 @@
+../../media/libmedia/include/MediaAnalyticsItem.h
\ No newline at end of file
diff --git a/include/media/MediaCasDefs.h b/include/media/MediaCasDefs.h
new file mode 100644
index 0000000..8c5a967
--- /dev/null
+++ b/include/media/MediaCasDefs.h
@@ -0,0 +1,97 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef MEDIA_CAS_DEFS_H_
+#define MEDIA_CAS_DEFS_H_
+
+#include <binder/Parcel.h>
+#include <media/cas/CasAPI.h>
+#include <media/cas/DescramblerAPI.h>
+#include <media/stagefright/foundation/ABase.h>
+
+namespace android {
+class IMemory;
+namespace media {
+
+namespace MediaCas {
+class ParcelableCasData : public CasData,
+                          public Parcelable {
+public:
+    ParcelableCasData() {}
+    ParcelableCasData(const uint8_t *data, size_t size) :
+        CasData(data, data + size) {}
+    virtual ~ParcelableCasData() {}
+    status_t readFromParcel(const Parcel* parcel) override;
+    status_t writeToParcel(Parcel* parcel) const override;
+
+private:
+    DISALLOW_EVIL_CONSTRUCTORS(ParcelableCasData);
+};
+
+class ParcelableCasPluginDescriptor : public Parcelable {
+public:
+    ParcelableCasPluginDescriptor(int32_t CA_system_id, const char *name)
+        : mCASystemId(CA_system_id), mName(name) {}
+
+    ParcelableCasPluginDescriptor() : mCASystemId(0) {}
+
+    ParcelableCasPluginDescriptor(ParcelableCasPluginDescriptor&& desc) = default;
+
+    virtual ~ParcelableCasPluginDescriptor() {}
+
+    status_t readFromParcel(const Parcel* parcel) override;
+    status_t writeToParcel(Parcel* parcel) const override;
+
+private:
+    int32_t mCASystemId;
+    String16 mName;
+    DISALLOW_EVIL_CONSTRUCTORS(ParcelableCasPluginDescriptor);
+};
+}
+
+namespace MediaDescrambler {
+class DescrambleInfo : public Parcelable {
+public:
+    enum DestinationType {
+        kDestinationTypeVmPointer,    // non-secure
+        kDestinationTypeNativeHandle  // secure
+    };
+
+    DestinationType dstType;
+    DescramblerPlugin::ScramblingControl scramblingControl;
+    size_t numSubSamples;
+    DescramblerPlugin::SubSample *subSamples;
+    sp<IMemory> srcMem;
+    int32_t srcOffset;
+    void *dstPtr;
+    int32_t dstOffset;
+
+    DescrambleInfo();
+    virtual ~DescrambleInfo();
+    status_t readFromParcel(const Parcel* parcel) override;
+    status_t writeToParcel(Parcel* parcel) const override;
+
+private:
+
+    DISALLOW_EVIL_CONSTRUCTORS(DescrambleInfo);
+};
+}
+
+} // namespace media
+} // namespace android
+
+
+#endif // MEDIA_CAS_DEFS_H_
diff --git a/include/media/MediaCodecBuffer.h b/include/media/MediaCodecBuffer.h
new file mode 120000
index 0000000..60b7e70
--- /dev/null
+++ b/include/media/MediaCodecBuffer.h
@@ -0,0 +1 @@
+../../media/libmedia/include/MediaCodecBuffer.h
\ No newline at end of file
diff --git a/include/media/MediaCodecInfo.h b/include/media/MediaCodecInfo.h
new file mode 120000
index 0000000..22b10bb
--- /dev/null
+++ b/include/media/MediaCodecInfo.h
@@ -0,0 +1 @@
+../../media/libmedia/include/MediaCodecInfo.h
\ No newline at end of file
diff --git a/include/media/MediaDefs.h b/include/media/MediaDefs.h
new file mode 120000
index 0000000..993729d
--- /dev/null
+++ b/include/media/MediaDefs.h
@@ -0,0 +1 @@
+../../media/libmedia/include/MediaDefs.h
\ No newline at end of file
diff --git a/include/media/MediaMetadataRetrieverInterface.h b/include/media/MediaMetadataRetrieverInterface.h
new file mode 120000
index 0000000..a09f9bb
--- /dev/null
+++ b/include/media/MediaMetadataRetrieverInterface.h
@@ -0,0 +1 @@
+../../media/libmedia/include/MediaMetadataRetrieverInterface.h
\ No newline at end of file
diff --git a/include/media/MediaPlayerInterface.h b/include/media/MediaPlayerInterface.h
deleted file mode 100644
index 4977efd..0000000
--- a/include/media/MediaPlayerInterface.h
+++ /dev/null
@@ -1,306 +0,0 @@
-/*
- * Copyright (C) 2007 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_MEDIAPLAYERINTERFACE_H
-#define ANDROID_MEDIAPLAYERINTERFACE_H
-
-#ifdef __cplusplus
-
-#include <sys/types.h>
-#include <utils/Errors.h>
-#include <utils/KeyedVector.h>
-#include <utils/String8.h>
-#include <utils/RefBase.h>
-
-#include <media/mediaplayer.h>
-#include <media/AudioResamplerPublic.h>
-#include <media/AudioSystem.h>
-#include <media/AudioTimestamp.h>
-#include <media/AVSyncSettings.h>
-#include <media/Metadata.h>
-
-// Fwd decl to make sure everyone agrees that the scope of struct sockaddr_in is
-// global, and not in android::
-struct sockaddr_in;
-
-namespace android {
-
-class DataSource;
-class Parcel;
-class Surface;
-class IGraphicBufferProducer;
-
-template<typename T> class SortedVector;
-
-enum player_type {
-    STAGEFRIGHT_PLAYER = 3,
-    NU_PLAYER = 4,
-    // Test players are available only in the 'test' and 'eng' builds.
-    // The shared library with the test player is passed passed as an
-    // argument to the 'test:' url in the setDataSource call.
-    TEST_PLAYER = 5,
-};
-
-
-#define DEFAULT_AUDIOSINK_BUFFERCOUNT 4
-#define DEFAULT_AUDIOSINK_BUFFERSIZE 1200
-#define DEFAULT_AUDIOSINK_SAMPLERATE 44100
-
-// when the channel mask isn't known, use the channel count to derive a mask in AudioSink::open()
-#define CHANNEL_MASK_USE_CHANNEL_ORDER 0
-
-// duration below which we do not allow deep audio buffering
-#define AUDIO_SINK_MIN_DEEP_BUFFER_DURATION_US 5000000
-
-// callback mechanism for passing messages to MediaPlayer object
-typedef void (*notify_callback_f)(void* cookie,
-        int msg, int ext1, int ext2, const Parcel *obj);
-
-// abstract base class - use MediaPlayerInterface
-class MediaPlayerBase : public RefBase
-{
-public:
-    // AudioSink: abstraction layer for audio output
-    class AudioSink : public RefBase {
-    public:
-        enum cb_event_t {
-            CB_EVENT_FILL_BUFFER,   // Request to write more data to buffer.
-            CB_EVENT_STREAM_END,    // Sent after all the buffers queued in AF and HW are played
-                                    // back (after stop is called)
-            CB_EVENT_TEAR_DOWN      // The AudioTrack was invalidated due to use case change:
-                                    // Need to re-evaluate offloading options
-        };
-
-        // Callback returns the number of bytes actually written to the buffer.
-        typedef size_t (*AudioCallback)(
-                AudioSink *audioSink, void *buffer, size_t size, void *cookie,
-                        cb_event_t event);
-
-        virtual             ~AudioSink() {}
-        virtual bool        ready() const = 0; // audio output is open and ready
-        virtual ssize_t     bufferSize() const = 0;
-        virtual ssize_t     frameCount() const = 0;
-        virtual ssize_t     channelCount() const = 0;
-        virtual ssize_t     frameSize() const = 0;
-        virtual uint32_t    latency() const = 0;
-        virtual float       msecsPerFrame() const = 0;
-        virtual status_t    getPosition(uint32_t *position) const = 0;
-        virtual status_t    getTimestamp(AudioTimestamp &ts) const = 0;
-        virtual int64_t     getPlayedOutDurationUs(int64_t nowUs) const = 0;
-        virtual status_t    getFramesWritten(uint32_t *frameswritten) const = 0;
-        virtual audio_session_t getSessionId() const = 0;
-        virtual audio_stream_type_t getAudioStreamType() const = 0;
-        virtual uint32_t    getSampleRate() const = 0;
-        virtual int64_t     getBufferDurationInUs() const = 0;
-
-        // If no callback is specified, use the "write" API below to submit
-        // audio data.
-        virtual status_t    open(
-                uint32_t sampleRate, int channelCount, audio_channel_mask_t channelMask,
-                audio_format_t format=AUDIO_FORMAT_PCM_16_BIT,
-                int bufferCount=DEFAULT_AUDIOSINK_BUFFERCOUNT,
-                AudioCallback cb = NULL,
-                void *cookie = NULL,
-                audio_output_flags_t flags = AUDIO_OUTPUT_FLAG_NONE,
-                const audio_offload_info_t *offloadInfo = NULL,
-                bool doNotReconnect = false,
-                uint32_t suggestedFrameCount = 0) = 0;
-
-        virtual status_t    start() = 0;
-
-        /* Input parameter |size| is in byte units stored in |buffer|.
-         * Data is copied over and actual number of bytes written (>= 0)
-         * is returned, or no data is copied and a negative status code
-         * is returned (even when |blocking| is true).
-         * When |blocking| is false, AudioSink will immediately return after
-         * part of or full |buffer| is copied over.
-         * When |blocking| is true, AudioSink will wait to copy the entire
-         * buffer, unless an error occurs or the copy operation is
-         * prematurely stopped.
-         */
-        virtual ssize_t     write(const void* buffer, size_t size, bool blocking = true) = 0;
-
-        virtual void        stop() = 0;
-        virtual void        flush() = 0;
-        virtual void        pause() = 0;
-        virtual void        close() = 0;
-
-        virtual status_t    setPlaybackRate(const AudioPlaybackRate& rate) = 0;
-        virtual status_t    getPlaybackRate(AudioPlaybackRate* rate /* nonnull */) = 0;
-        virtual bool        needsTrailingPadding() { return true; }
-
-        virtual status_t    setParameters(const String8& /* keyValuePairs */) { return NO_ERROR; }
-        virtual String8     getParameters(const String8& /* keys */) { return String8::empty(); }
-    };
-
-                        MediaPlayerBase() : mCookie(0), mNotify(0) {}
-    virtual             ~MediaPlayerBase() {}
-    virtual status_t    initCheck() = 0;
-    virtual bool        hardwareOutput() = 0;
-
-    virtual status_t    setUID(uid_t /* uid */) {
-        return INVALID_OPERATION;
-    }
-
-    virtual status_t    setDataSource(
-            const sp<IMediaHTTPService> &httpService,
-            const char *url,
-            const KeyedVector<String8, String8> *headers = NULL) = 0;
-
-    virtual status_t    setDataSource(int fd, int64_t offset, int64_t length) = 0;
-
-    virtual status_t    setDataSource(const sp<IStreamSource>& /* source */) {
-        return INVALID_OPERATION;
-    }
-
-    virtual status_t    setDataSource(const sp<DataSource>& /* source */) {
-        return INVALID_OPERATION;
-    }
-
-    // pass the buffered IGraphicBufferProducer to the media player service
-    virtual status_t    setVideoSurfaceTexture(
-                                const sp<IGraphicBufferProducer>& bufferProducer) = 0;
-
-    virtual status_t    prepare() = 0;
-    virtual status_t    prepareAsync() = 0;
-    virtual status_t    start() = 0;
-    virtual status_t    stop() = 0;
-    virtual status_t    pause() = 0;
-    virtual bool        isPlaying() = 0;
-    virtual status_t    setPlaybackSettings(const AudioPlaybackRate& rate) {
-        // by default, players only support setting rate to the default
-        if (!isAudioPlaybackRateEqual(rate, AUDIO_PLAYBACK_RATE_DEFAULT)) {
-            return BAD_VALUE;
-        }
-        return OK;
-    }
-    virtual status_t    getPlaybackSettings(AudioPlaybackRate* rate /* nonnull */) {
-        *rate = AUDIO_PLAYBACK_RATE_DEFAULT;
-        return OK;
-    }
-    virtual status_t    setSyncSettings(const AVSyncSettings& sync, float /* videoFps */) {
-        // By default, players only support setting sync source to default; all other sync
-        // settings are ignored. There is no requirement for getters to return set values.
-        if (sync.mSource != AVSYNC_SOURCE_DEFAULT) {
-            return BAD_VALUE;
-        }
-        return OK;
-    }
-    virtual status_t    getSyncSettings(
-                                AVSyncSettings* sync /* nonnull */, float* videoFps /* nonnull */) {
-        *sync = AVSyncSettings();
-        *videoFps = -1.f;
-        return OK;
-    }
-    virtual status_t    seekTo(int msec) = 0;
-    virtual status_t    getCurrentPosition(int *msec) = 0;
-    virtual status_t    getDuration(int *msec) = 0;
-    virtual status_t    reset() = 0;
-    virtual status_t    setLooping(int loop) = 0;
-    virtual player_type playerType() = 0;
-    virtual status_t    setParameter(int key, const Parcel &request) = 0;
-    virtual status_t    getParameter(int key, Parcel *reply) = 0;
-
-    // default no-op implementation of optional extensions
-    virtual status_t setRetransmitEndpoint(const struct sockaddr_in* /* endpoint */) {
-        return INVALID_OPERATION;
-    }
-    virtual status_t getRetransmitEndpoint(struct sockaddr_in* /* endpoint */) {
-        return INVALID_OPERATION;
-    }
-    virtual status_t setNextPlayer(const sp<MediaPlayerBase>& /* next */) {
-        return OK;
-    }
-
-    // Invoke a generic method on the player by using opaque parcels
-    // for the request and reply.
-    //
-    // @param request Parcel that is positioned at the start of the
-    //                data sent by the java layer.
-    // @param[out] reply Parcel to hold the reply data. Cannot be null.
-    // @return OK if the call was successful.
-    virtual status_t    invoke(const Parcel& request, Parcel *reply) = 0;
-
-    // The Client in the MetadataPlayerService calls this method on
-    // the native player to retrieve all or a subset of metadata.
-    //
-    // @param ids SortedList of metadata ID to be fetch. If empty, all
-    //            the known metadata should be returned.
-    // @param[inout] records Parcel where the player appends its metadata.
-    // @return OK if the call was successful.
-    virtual status_t    getMetadata(const media::Metadata::Filter& /* ids */,
-                                    Parcel* /* records */) {
-        return INVALID_OPERATION;
-    };
-
-    void        setNotifyCallback(
-            void* cookie, notify_callback_f notifyFunc) {
-        Mutex::Autolock autoLock(mNotifyLock);
-        mCookie = cookie; mNotify = notifyFunc;
-    }
-
-    void        sendEvent(int msg, int ext1=0, int ext2=0,
-                          const Parcel *obj=NULL) {
-        notify_callback_f notifyCB;
-        void* cookie;
-        {
-            Mutex::Autolock autoLock(mNotifyLock);
-            notifyCB = mNotify;
-            cookie = mCookie;
-        }
-
-        if (notifyCB) notifyCB(cookie, msg, ext1, ext2, obj);
-    }
-
-    virtual status_t dump(int /* fd */, const Vector<String16>& /* args */) const {
-        return INVALID_OPERATION;
-    }
-
-private:
-    friend class MediaPlayerService;
-
-    Mutex               mNotifyLock;
-    void*               mCookie;
-    notify_callback_f   mNotify;
-};
-
-// Implement this class for media players that use the AudioFlinger software mixer
-class MediaPlayerInterface : public MediaPlayerBase
-{
-public:
-    virtual             ~MediaPlayerInterface() { }
-    virtual bool        hardwareOutput() { return false; }
-    virtual void        setAudioSink(const sp<AudioSink>& audioSink) { mAudioSink = audioSink; }
-protected:
-    sp<AudioSink>       mAudioSink;
-};
-
-// Implement this class for media players that output audio directly to hardware
-class MediaPlayerHWInterface : public MediaPlayerBase
-{
-public:
-    virtual             ~MediaPlayerHWInterface() {}
-    virtual bool        hardwareOutput() { return true; }
-    virtual status_t    setVolume(float leftVolume, float rightVolume) = 0;
-    virtual status_t    setAudioStreamType(audio_stream_type_t streamType) = 0;
-};
-
-}; // namespace android
-
-#endif // __cplusplus
-
-
-#endif // ANDROID_MEDIAPLAYERINTERFACE_H
diff --git a/include/media/MediaPlayerInterface.h b/include/media/MediaPlayerInterface.h
new file mode 120000
index 0000000..9b2e1c7
--- /dev/null
+++ b/include/media/MediaPlayerInterface.h
@@ -0,0 +1 @@
+../../media/libmediaplayerservice/include/MediaPlayerInterface.h
\ No newline at end of file
diff --git a/include/media/MediaProfiles.h b/include/media/MediaProfiles.h
new file mode 120000
index 0000000..86958e4
--- /dev/null
+++ b/include/media/MediaProfiles.h
@@ -0,0 +1 @@
+../../media/libmedia/include/MediaProfiles.h
\ No newline at end of file
diff --git a/include/media/MediaRecorderBase.h b/include/media/MediaRecorderBase.h
deleted file mode 100644
index 42151ea..0000000
--- a/include/media/MediaRecorderBase.h
+++ /dev/null
@@ -1,76 +0,0 @@
-/*
- * Copyright (C) 2009 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef MEDIA_RECORDER_BASE_H_
-
-#define MEDIA_RECORDER_BASE_H_
-
-#include <media/mediarecorder.h>
-
-#include <system/audio.h>
-
-namespace android {
-
-class ICameraRecordingProxy;
-class Surface;
-class IGraphicBufferConsumer;
-class IGraphicBufferProducer;
-
-struct MediaRecorderBase {
-    MediaRecorderBase(const String16 &opPackageName)
-        : mOpPackageName(opPackageName) {}
-    virtual ~MediaRecorderBase() {}
-
-    virtual status_t init() = 0;
-    virtual status_t setAudioSource(audio_source_t as) = 0;
-    virtual status_t setVideoSource(video_source vs) = 0;
-    virtual status_t setOutputFormat(output_format of) = 0;
-    virtual status_t setAudioEncoder(audio_encoder ae) = 0;
-    virtual status_t setVideoEncoder(video_encoder ve) = 0;
-    virtual status_t setVideoSize(int width, int height) = 0;
-    virtual status_t setVideoFrameRate(int frames_per_second) = 0;
-    virtual status_t setCamera(const sp<hardware::ICamera>& camera,
-                               const sp<ICameraRecordingProxy>& proxy) = 0;
-    virtual status_t setPreviewSurface(const sp<IGraphicBufferProducer>& surface) = 0;
-    virtual status_t setOutputFile(int fd, int64_t offset, int64_t length) = 0;
-    virtual status_t setOutputFileAuxiliary(int /*fd*/) {return INVALID_OPERATION;}
-    virtual status_t setParameters(const String8& params) = 0;
-    virtual status_t setListener(const sp<IMediaRecorderClient>& listener) = 0;
-    virtual status_t setClientName(const String16& clientName) = 0;
-    virtual status_t prepare() = 0;
-    virtual status_t start() = 0;
-    virtual status_t stop() = 0;
-    virtual status_t pause() = 0;
-    virtual status_t resume() = 0;
-    virtual status_t close() = 0;
-    virtual status_t reset() = 0;
-    virtual status_t getMaxAmplitude(int *max) = 0;
-    virtual status_t dump(int fd, const Vector<String16>& args) const = 0;
-    virtual status_t setInputSurface(const sp<IGraphicBufferConsumer>& surface) = 0;
-    virtual sp<IGraphicBufferProducer> querySurfaceMediaSource() const = 0;
-
-
-protected:
-    String16 mOpPackageName;
-
-private:
-    MediaRecorderBase(const MediaRecorderBase &);
-    MediaRecorderBase &operator=(const MediaRecorderBase &);
-};
-
-}  // namespace android
-
-#endif  // MEDIA_RECORDER_BASE_H_
diff --git a/include/media/MediaRecorderBase.h b/include/media/MediaRecorderBase.h
new file mode 120000
index 0000000..6080258
--- /dev/null
+++ b/include/media/MediaRecorderBase.h
@@ -0,0 +1 @@
+../../media/libmedia/include/MediaRecorderBase.h
\ No newline at end of file
diff --git a/include/media/MediaResource.h b/include/media/MediaResource.h
new file mode 120000
index 0000000..aaf931a
--- /dev/null
+++ b/include/media/MediaResource.h
@@ -0,0 +1 @@
+../../media/libmedia/include/MediaResource.h
\ No newline at end of file
diff --git a/include/media/MediaResourcePolicy.h b/include/media/MediaResourcePolicy.h
new file mode 120000
index 0000000..d56b09f
--- /dev/null
+++ b/include/media/MediaResourcePolicy.h
@@ -0,0 +1 @@
+../../media/libmedia/include/MediaResourcePolicy.h
\ No newline at end of file
diff --git a/include/media/MemoryLeakTrackUtil.h b/include/media/MemoryLeakTrackUtil.h
new file mode 120000
index 0000000..cfeac14
--- /dev/null
+++ b/include/media/MemoryLeakTrackUtil.h
@@ -0,0 +1 @@
+../../media/libmedia/include/MemoryLeakTrackUtil.h
\ No newline at end of file
diff --git a/include/media/Metadata.h b/include/media/Metadata.h
new file mode 120000
index 0000000..4a5893d
--- /dev/null
+++ b/include/media/Metadata.h
@@ -0,0 +1 @@
+../../media/libmedia/include/Metadata.h
\ No newline at end of file
diff --git a/include/media/MidiDeviceInfo.h b/include/media/MidiDeviceInfo.h
new file mode 120000
index 0000000..55ac9f5
--- /dev/null
+++ b/include/media/MidiDeviceInfo.h
@@ -0,0 +1 @@
+../../media/libmedia/include/MidiDeviceInfo.h
\ No newline at end of file
diff --git a/include/media/MidiIoWrapper.h b/include/media/MidiIoWrapper.h
new file mode 120000
index 0000000..a3fe892
--- /dev/null
+++ b/include/media/MidiIoWrapper.h
@@ -0,0 +1 @@
+../../media/libmedia/include/MidiIoWrapper.h
\ No newline at end of file
diff --git a/include/media/MmapStreamCallback.h b/include/media/MmapStreamCallback.h
new file mode 100644
index 0000000..8098e79
--- /dev/null
+++ b/include/media/MmapStreamCallback.h
@@ -0,0 +1,60 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_AUDIO_MMAP_STREAM_CALLBACK_H
+#define ANDROID_AUDIO_MMAP_STREAM_CALLBACK_H
+
+#include <system/audio.h>
+#include <utils/Errors.h>
+#include <utils/RefBase.h>
+
+namespace android {
+
+
+class MmapStreamCallback : public virtual RefBase {
+  public:
+
+    /**
+     * The mmap stream should be torn down because conditions that permitted its creation with
+     * the requested parameters have changed and do not allow it to operate with the requested
+     * constraints any more.
+     */
+    virtual void onTearDown() = 0;
+
+    /**
+     * The volume to be applied to the use case specified when opening the stream has changed
+     * \param[in] channels a channel mask containing all channels the volume should be applied to.
+     * \param[in] values the volume values to be applied to each channel. The size of the vector
+     *                   should correspond to the channel count retrieved with
+     *                   audio_channel_count_from_in_mask() or audio_channel_count_from_out_mask()
+     */
+    virtual void onVolumeChanged(audio_channel_mask_t channels, Vector<float> values) = 0;
+
+    /**
+     * The device the stream is routed to/from has changed
+     * \param[in] onRoutingChanged the unique device ID of the new device.
+     */
+    virtual void onRoutingChanged(audio_port_handle_t deviceId) = 0;
+
+  protected:
+    MmapStreamCallback() {}
+    virtual ~MmapStreamCallback() {}
+};
+
+
+} // namespace android
+
+#endif // ANDROID_AUDIO_MMAP_STREAM_CALLBACK_H
diff --git a/include/media/MmapStreamInterface.h b/include/media/MmapStreamInterface.h
new file mode 100644
index 0000000..7dbc19e
--- /dev/null
+++ b/include/media/MmapStreamInterface.h
@@ -0,0 +1,149 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_AUDIO_MMAP_STREAM_INTERFACE_H
+#define ANDROID_AUDIO_MMAP_STREAM_INTERFACE_H
+
+#include <system/audio.h>
+#include <utils/Errors.h>
+#include <utils/RefBase.h>
+
+namespace android {
+
+class MmapStreamCallback;
+
+class MmapStreamInterface : public virtual RefBase
+{
+  public:
+
+    /**
+     * Values for direction argument passed to openMmapStream()
+     */
+    typedef enum {
+        DIRECTION_OUTPUT = 0,  /**< open a playback mmap stream */
+        DIRECTION_INPUT,       /**< open a capture mmap stream */
+    } stream_direction_t;
+
+    class Client {
+     public:
+        uid_t clientUid;
+        pid_t clientPid;
+        String16 packageName;
+    };
+    /**
+     * Open a playback or capture stream in MMAP mode at the audio HAL.
+     *
+     * \note This method is implemented by AudioFlinger
+     *
+     * \param[in] direction open a playback or capture stream.
+     * \param[in] attr audio attributes defining the main use case for this stream
+     * \param[in,out] config audio parameters (sampling rate, format ...) for the stream.
+     *                       Requested parameters as input,
+     *                       Actual parameters as output
+     * \param[in] client a Client struct describing the first client using this stream.
+     * \param[in,out] deviceId audio device the stream should preferably be routed to/from
+     *                       Requested as input,
+     *                       Actual as output
+     * \param[in] callback the MmapStreamCallback interface used by AudioFlinger to notify
+     *                     condition changes affecting the stream operation
+     * \param[out] interface the MmapStreamInterface interface controlling the created stream
+     * \return OK if the stream was successfully created.
+     *         NO_INIT if AudioFlinger is not properly initialized
+     *         BAD_VALUE if the stream cannot be opened because of invalid arguments
+     *         INVALID_OPERATION if the stream cannot be opened because of platform limitations
+     */
+    static status_t openMmapStream(stream_direction_t direction,
+                                           const audio_attributes_t *attr,
+                                           audio_config_base_t *config,
+                                           const Client& client,
+                                           audio_port_handle_t *deviceId,
+                                           const sp<MmapStreamCallback>& callback,
+                                           sp<MmapStreamInterface>& interface);
+
+    /**
+     * Retrieve information on the mmap buffer used for audio samples transfer.
+     * Must be called before any other method after opening the stream or entering standby.
+     *
+     * \param[in] min_size_frames minimum buffer size requested. The actual buffer
+     *        size returned in struct audio_mmap_buffer_info can be larger.
+     * \param[out] info address at which the mmap buffer information should be returned.
+     *
+     * \return OK if the buffer was allocated.
+     *         NO_INIT in case of initialization error
+     *         BAD_VALUE if the requested buffer size is too large
+     *         INVALID_OPERATION if called out of sequence (e.g. buffer already allocated)
+     */
+    virtual status_t createMmapBuffer(int32_t minSizeFrames,
+                                      struct audio_mmap_buffer_info *info) = 0;
+
+    /**
+     * Read current read/write position in the mmap buffer with associated time stamp.
+     *
+     * \param[out] position address at which the mmap read/write position should be returned.
+     *
+     * \return OK if the position is successfully returned.
+     *         NO_INIT in case of initialization error
+     *         NOT_ENOUGH_DATA if the position cannot be retrieved
+     *         INVALID_OPERATION if called before createMmapBuffer()
+     */
+    virtual status_t getMmapPosition(struct audio_mmap_position *position) = 0;
+
+    /**
+     * Start a stream operating in mmap mode.
+     * createMmapBuffer() must be called before calling start()
+     *
+     * \param[in] client a Client struct describing the client starting on this stream.
+     * \param[out] handle unique handle for this instance. Used with stop().
+     * \return OK in case of success.
+     *         NO_INIT in case of initialization error
+     *         INVALID_OPERATION if called out of sequence
+     */
+    virtual status_t start(const Client& client, audio_port_handle_t *handle) = 0;
+
+    /**
+     * Stop a stream operating in mmap mode.
+     * Must be called after start()
+     *
+     * \param[in] handle unique handle allocated by start().
+     * \return OK in case of success.
+     *         NO_INIT in case of initialization error
+     *         INVALID_OPERATION if called out of sequence
+     */
+    virtual status_t stop(audio_port_handle_t handle) = 0;
+
+    /**
+     * Put a stream operating in mmap mode into standby.
+     * Must be called after createMmapBuffer(). Cannot be called if any client is active.
+     * It is recommended to place a mmap stream into standby as often as possible when no client is
+     * active to save power.
+     *
+     * \return OK in case of success.
+     *         NO_INIT in case of initialization error
+     *         INVALID_OPERATION if called out of sequence
+     */
+    virtual status_t standby() = 0;
+
+  protected:
+    // Subclasses can not be constructed directly by clients.
+    MmapStreamInterface() {}
+
+    // The destructor automatically closes the stream.
+    virtual ~MmapStreamInterface() {}
+};
+
+} // namespace android
+
+#endif // ANDROID_AUDIO_MMAP_STREAM_INTERFACE_H
diff --git a/include/media/Modulo.h b/include/media/Modulo.h
new file mode 120000
index 0000000..58f31a4
--- /dev/null
+++ b/include/media/Modulo.h
@@ -0,0 +1 @@
+../../media/libmedia/include/Modulo.h
\ No newline at end of file
diff --git a/include/media/OMXBuffer.h b/include/media/OMXBuffer.h
new file mode 120000
index 0000000..9defe79
--- /dev/null
+++ b/include/media/OMXBuffer.h
@@ -0,0 +1 @@
+../../media/libmedia/include/OMXBuffer.h
\ No newline at end of file
diff --git a/include/media/OMXFenceParcelable.h b/include/media/OMXFenceParcelable.h
new file mode 120000
index 0000000..2e996dd
--- /dev/null
+++ b/include/media/OMXFenceParcelable.h
@@ -0,0 +1 @@
+../../media/libmedia/include/OMXFenceParcelable.h
\ No newline at end of file
diff --git a/include/media/PluginLoader.h b/include/media/PluginLoader.h
new file mode 120000
index 0000000..f67f2c4
--- /dev/null
+++ b/include/media/PluginLoader.h
@@ -0,0 +1 @@
+../../media/libmedia/include/PluginLoader.h
\ No newline at end of file
diff --git a/include/media/RecordBufferConverter.h b/include/media/RecordBufferConverter.h
new file mode 120000
index 0000000..b9ee8df
--- /dev/null
+++ b/include/media/RecordBufferConverter.h
@@ -0,0 +1 @@
+../../media/libmedia/include/RecordBufferConverter.h
\ No newline at end of file
diff --git a/include/media/RingBuffer.h b/include/media/RingBuffer.h
new file mode 120000
index 0000000..84f4943
--- /dev/null
+++ b/include/media/RingBuffer.h
@@ -0,0 +1 @@
+../../media/libmedia/include/RingBuffer.h
\ No newline at end of file
diff --git a/include/media/SharedLibrary.h b/include/media/SharedLibrary.h
new file mode 120000
index 0000000..a2a040f
--- /dev/null
+++ b/include/media/SharedLibrary.h
@@ -0,0 +1 @@
+../../media/libmedia/include/SharedLibrary.h
\ No newline at end of file
diff --git a/include/media/SingleStateQueue.h b/include/media/SingleStateQueue.h
new file mode 120000
index 0000000..7dda0d8
--- /dev/null
+++ b/include/media/SingleStateQueue.h
@@ -0,0 +1 @@
+../../media/libmedia/include/SingleStateQueue.h
\ No newline at end of file
diff --git a/include/media/StringArray.h b/include/media/StringArray.h
new file mode 120000
index 0000000..5061652
--- /dev/null
+++ b/include/media/StringArray.h
@@ -0,0 +1 @@
+../../media/libmedia/include/StringArray.h
\ No newline at end of file
diff --git a/include/media/ToneGenerator.h b/include/media/ToneGenerator.h
new file mode 120000
index 0000000..f00ee2d
--- /dev/null
+++ b/include/media/ToneGenerator.h
@@ -0,0 +1 @@
+../../media/libaudioclient/include/ToneGenerator.h
\ No newline at end of file
diff --git a/include/media/TypeConverter.h b/include/media/TypeConverter.h
new file mode 120000
index 0000000..9109aaa
--- /dev/null
+++ b/include/media/TypeConverter.h
@@ -0,0 +1 @@
+../../media/libmedia/include/TypeConverter.h
\ No newline at end of file
diff --git a/include/media/Visualizer.h b/include/media/Visualizer.h
deleted file mode 100644
index 7bb9e8b..0000000
--- a/include/media/Visualizer.h
+++ /dev/null
@@ -1,178 +0,0 @@
-/*
- * Copyright (C) 2010 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_MEDIA_VISUALIZER_H
-#define ANDROID_MEDIA_VISUALIZER_H
-
-#include <media/AudioEffect.h>
-#include <audio_effects/effect_visualizer.h>
-#include <utils/Thread.h>
-
-/**
- * The Visualizer class enables application to retrieve part of the currently playing audio for
- * visualization purpose. It is not an audio recording interface and only returns partial and low
- * quality audio content. However, to protect privacy of certain audio data (e.g voice mail) the use
- * of the visualizer requires the permission android.permission.RECORD_AUDIO.
- * The audio session ID passed to the constructor indicates which audio content should be
- * visualized:
- * - If the session is 0, the audio output mix is visualized
- * - If the session is not 0, the audio from a particular MediaPlayer or AudioTrack
- *   using this audio session is visualized
- * Two types of representation of audio content can be captured:
- * - Waveform data: consecutive 8-bit (unsigned) mono samples by using the getWaveForm() method
- * - Frequency data: 8-bit magnitude FFT by using the getFft() method
- *
- * The length of the capture can be retrieved or specified by calling respectively
- * getCaptureSize() and setCaptureSize() methods. Note that the size of the FFT
- * is half of the specified capture size but both sides of the spectrum are returned yielding in a
- * number of bytes equal to the capture size. The capture size must be a power of 2 in the range
- * returned by getMinCaptureSize() and getMaxCaptureSize().
- * In addition to the polling capture mode, a callback mode is also available by installing a
- * callback function by use of the setCaptureCallBack() method. The rate at which the callback
- * is called as well as the type of data returned is specified.
- * Before capturing data, the Visualizer must be enabled by calling the setEnabled() method.
- * When data capture is not needed any more, the Visualizer should be disabled.
- */
-
-
-namespace android {
-
-// ----------------------------------------------------------------------------
-
-class Visualizer: public AudioEffect {
-public:
-
-    enum callback_flags {
-        CAPTURE_WAVEFORM = 0x00000001,  // capture callback returns a PCM wave form
-        CAPTURE_FFT = 0x00000002,       // apture callback returns a frequency representation
-        CAPTURE_CALL_JAVA = 0x00000004  // the callback thread can call java
-    };
-
-
-    /* Constructor.
-     * See AudioEffect constructor for details on parameters.
-     */
-                        Visualizer(const String16& opPackageName,
-                                   int32_t priority = 0,
-                                   effect_callback_t cbf = NULL,
-                                   void* user = NULL,
-                                   audio_session_t sessionId = AUDIO_SESSION_OUTPUT_MIX);
-
-                        ~Visualizer();
-
-    virtual status_t    setEnabled(bool enabled);
-
-    // maximum capture size in samples
-    static uint32_t getMaxCaptureSize() { return VISUALIZER_CAPTURE_SIZE_MAX; }
-    // minimum capture size in samples
-    static uint32_t getMinCaptureSize() { return VISUALIZER_CAPTURE_SIZE_MIN; }
-    // maximum capture rate in millihertz
-    static uint32_t getMaxCaptureRate() { return CAPTURE_RATE_MAX; }
-
-    // callback used to return periodic PCM or FFT captures to the application. Either one or both
-    // types of data are returned (PCM and FFT) according to flags indicated when installing the
-    // callback. When a type of data is not present, the corresponding size (waveformSize or
-    // fftSize) is 0.
-    typedef void (*capture_cbk_t)(void* user,
-                                    uint32_t waveformSize,
-                                    uint8_t *waveform,
-                                    uint32_t fftSize,
-                                    uint8_t *fft,
-                                    uint32_t samplingrate);
-
-    // install a callback to receive periodic captures. The capture rate is specified in milliHertz
-    // and the capture format is according to flags  (see callback_flags).
-    status_t setCaptureCallBack(capture_cbk_t cbk, void* user, uint32_t flags, uint32_t rate);
-
-    // set the capture size capture size must be a power of two in the range
-    // [VISUALIZER_CAPTURE_SIZE_MAX. VISUALIZER_CAPTURE_SIZE_MIN]
-    // must be called when the visualizer is not enabled
-    status_t setCaptureSize(uint32_t size);
-    uint32_t getCaptureSize() { return mCaptureSize; }
-
-    // returns the capture rate indicated when installing the callback
-    uint32_t getCaptureRate() { return mCaptureRate; }
-
-    // returns the sampling rate of the audio being captured
-    uint32_t getSamplingRate() { return mSampleRate; }
-
-    // set the way volume affects the captured data
-    // mode must one of VISUALIZER_SCALING_MODE_NORMALIZED,
-    //  VISUALIZER_SCALING_MODE_AS_PLAYED
-    status_t setScalingMode(uint32_t mode);
-    uint32_t getScalingMode() { return mScalingMode; }
-
-    // set which measurements are done on the audio buffers processed by the effect.
-    // valid measurements (mask): MEASUREMENT_MODE_PEAK_RMS
-    status_t setMeasurementMode(uint32_t mode);
-    uint32_t getMeasurementMode() { return mMeasurementMode; }
-
-    // return a set of int32_t measurements
-    status_t getIntMeasurements(uint32_t type, uint32_t number, int32_t *measurements);
-
-    // return a capture in PCM 8 bit unsigned format. The size of the capture is equal to
-    // getCaptureSize()
-    status_t getWaveForm(uint8_t *waveform);
-
-    // return a capture in FFT 8 bit signed format. The size of the capture is equal to
-    // getCaptureSize() but the length of the FFT is half of the size (both parts of the spectrum
-    // are returned
-    status_t getFft(uint8_t *fft);
-
-protected:
-    // from IEffectClient
-    virtual void controlStatusChanged(bool controlGranted);
-
-private:
-
-    static const uint32_t CAPTURE_RATE_MAX = 20000;
-    static const uint32_t CAPTURE_RATE_DEF = 10000;
-    static const uint32_t CAPTURE_SIZE_DEF = VISUALIZER_CAPTURE_SIZE_MAX;
-
-    /* internal class to handle the callback */
-    class CaptureThread : public Thread
-    {
-    public:
-        CaptureThread(Visualizer& receiver, uint32_t captureRate, bool bCanCallJava = false);
-
-    private:
-        friend class Visualizer;
-        virtual bool        threadLoop();
-        Visualizer& mReceiver;
-        Mutex       mLock;
-        uint32_t mSleepTimeUs;
-    };
-
-    status_t doFft(uint8_t *fft, uint8_t *waveform);
-    void periodicCapture();
-    uint32_t initCaptureSize();
-
-    Mutex mCaptureLock;
-    uint32_t mCaptureRate;
-    uint32_t mCaptureSize;
-    uint32_t mSampleRate;
-    uint32_t mScalingMode;
-    uint32_t mMeasurementMode;
-    capture_cbk_t mCaptureCallBack;
-    void *mCaptureCbkUser;
-    sp<CaptureThread> mCaptureThread;
-    uint32_t mCaptureFlags;
-};
-
-
-}; // namespace android
-
-#endif // ANDROID_MEDIA_VISUALIZER_H
diff --git a/include/media/Visualizer.h b/include/media/Visualizer.h
new file mode 120000
index 0000000..fca8b86
--- /dev/null
+++ b/include/media/Visualizer.h
@@ -0,0 +1 @@
+../../media/libmedia/include/Visualizer.h
\ No newline at end of file
diff --git a/include/media/VolumeShaper.h b/include/media/VolumeShaper.h
new file mode 100644
index 0000000..f5a74d8
--- /dev/null
+++ b/include/media/VolumeShaper.h
@@ -0,0 +1,839 @@
+/*
+ * Copyright 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_VOLUME_SHAPER_H
+#define ANDROID_VOLUME_SHAPER_H
+
+#include <cmath>
+#include <list>
+#include <math.h>
+#include <sstream>
+
+#include <binder/Parcel.h>
+#include <media/Interpolator.h>
+#include <utils/Mutex.h>
+#include <utils/RefBase.h>
+
+#pragma push_macro("LOG_TAG")
+#undef LOG_TAG
+#define LOG_TAG "VolumeShaper"
+
+// turn on VolumeShaper logging
+#if 0
+#define VS_LOG ALOGD
+#else
+#define VS_LOG(...)
+#endif
+
+namespace android {
+
+// The native VolumeShaper class mirrors the java VolumeShaper class;
+// in addition, the native class contains implementation for actual operation.
+//
+// VolumeShaper methods are not safe for multiple thread access.
+// Use VolumeHandler for thread-safe encapsulation of multiple VolumeShapers.
+//
+// Classes below written are to avoid naked pointers so there are no
+// explicit destructors required.
+
+class VolumeShaper {
+public:
+    using S = float;
+    using T = float;
+
+    static const int kSystemIdMax = 16;
+
+    // VolumeShaper::Status is equivalent to status_t if negative
+    // but if non-negative represents the id operated on.
+    // It must be expressible as an int32_t for binder purposes.
+    using Status = status_t;
+
+    class Configuration : public Interpolator<S, T>, public RefBase {
+    public:
+        /* VolumeShaper.Configuration derives from the Interpolator class and adds
+         * parameters relating to the volume shape.
+         */
+
+        // TODO document as per VolumeShaper.java flags.
+
+        // must match with VolumeShaper.java in frameworks/base
+        enum Type : int32_t {
+            TYPE_ID,
+            TYPE_SCALE,
+        };
+
+        // must match with VolumeShaper.java in frameworks/base
+        enum OptionFlag : int32_t {
+            OPTION_FLAG_NONE           = 0,
+            OPTION_FLAG_VOLUME_IN_DBFS = (1 << 0),
+            OPTION_FLAG_CLOCK_TIME     = (1 << 1),
+
+            OPTION_FLAG_ALL            = (OPTION_FLAG_VOLUME_IN_DBFS | OPTION_FLAG_CLOCK_TIME),
+        };
+
+        // bring to derived class; must match with VolumeShaper.java in frameworks/base
+        using InterpolatorType = Interpolator<S, T>::InterpolatorType;
+
+        Configuration()
+            : Interpolator<S, T>()
+            , mType(TYPE_SCALE)
+            , mOptionFlags(OPTION_FLAG_NONE)
+            , mDurationMs(1000.)
+            , mId(-1) {
+        }
+
+        Configuration(const Configuration &configuration)
+            : Interpolator<S, T>(*static_cast<const Interpolator<S, T> *>(&configuration))
+            , mType(configuration.mType)
+            , mOptionFlags(configuration.mOptionFlags)
+            , mDurationMs(configuration.mDurationMs)
+            , mId(configuration.mId) {
+        }
+
+        Type getType() const {
+            return mType;
+        }
+
+        status_t setType(Type type) {
+            switch (type) {
+            case TYPE_ID:
+            case TYPE_SCALE:
+                mType = type;
+                return NO_ERROR;
+            default:
+                ALOGE("invalid Type: %d", type);
+                return BAD_VALUE;
+            }
+        }
+
+        OptionFlag getOptionFlags() const {
+            return mOptionFlags;
+        }
+
+        status_t setOptionFlags(OptionFlag optionFlags) {
+            if ((optionFlags & ~OPTION_FLAG_ALL) != 0) {
+                ALOGE("optionFlags has invalid bits: %#x", optionFlags);
+                return BAD_VALUE;
+            }
+            mOptionFlags = optionFlags;
+            return NO_ERROR;
+        }
+
+        double getDurationMs() const {
+            return mDurationMs;
+        }
+
+        void setDurationMs(double durationMs) {
+            mDurationMs = durationMs;
+        }
+
+        int32_t getId() const {
+            return mId;
+        }
+
+        void setId(int32_t id) {
+            mId = id;
+        }
+
+        T adjustVolume(T volume) const {
+            if ((getOptionFlags() & OPTION_FLAG_VOLUME_IN_DBFS) != 0) {
+                const T out = powf(10.f, volume / 10.);
+                VS_LOG("in: %f  out: %f", volume, out);
+                volume = out;
+            }
+            // clamp
+            if (volume < 0.f) {
+                volume = 0.f;
+            } else if (volume > 1.f) {
+                volume = 1.f;
+            }
+            return volume;
+        }
+
+        status_t checkCurve() {
+            if (mType == TYPE_ID) return NO_ERROR;
+            if (this->size() < 2) {
+                ALOGE("curve must have at least 2 points");
+                return BAD_VALUE;
+            }
+            if (first().first != 0.f || last().first != 1.f) {
+                ALOGE("curve must start at 0.f and end at 1.f");
+                return BAD_VALUE;
+            }
+            if ((getOptionFlags() & OPTION_FLAG_VOLUME_IN_DBFS) != 0) {
+                for (const auto &pt : *this) {
+                    if (!(pt.second <= 0.f) /* handle nan */) {
+                        ALOGE("positive volume dbFS");
+                        return BAD_VALUE;
+                    }
+                }
+            } else {
+                for (const auto &pt : *this) {
+                    if (!(pt.second >= 0.f) || !(pt.second <= 1.f) /* handle nan */) {
+                        ALOGE("volume < 0.f or > 1.f");
+                        return BAD_VALUE;
+                    }
+                }
+            }
+            return NO_ERROR;
+        }
+
+        void clampVolume() {
+            if ((mOptionFlags & OPTION_FLAG_VOLUME_IN_DBFS) != 0) {
+                for (auto it = this->begin(); it != this->end(); ++it) {
+                    if (!(it->second <= 0.f) /* handle nan */) {
+                        it->second = 0.f;
+                    }
+                }
+            } else {
+                for (auto it = this->begin(); it != this->end(); ++it) {
+                    if (!(it->second >= 0.f) /* handle nan */) {
+                        it->second = 0.f;
+                    } else if (!(it->second <= 1.f)) {
+                        it->second = 1.f;
+                    }
+                }
+            }
+        }
+
+        /* scaleToStartVolume() is used to set the start volume of a
+         * new VolumeShaper curve, when replacing one VolumeShaper
+         * with another using the "join" (volume match) option.
+         *
+         * It works best for monotonic volume ramps or ducks.
+         */
+        void scaleToStartVolume(T volume) {
+            if (this->size() < 2) {
+                return;
+            }
+            const T startVolume = first().second;
+            const T endVolume = last().second;
+            if (endVolume == startVolume) {
+                // match with linear ramp
+                const T offset = volume - startVolume;
+                for (auto it = this->begin(); it != this->end(); ++it) {
+                    it->second = it->second + offset * (1.f - it->first);
+                }
+            } else {
+                const T  scale = (volume - endVolume) / (startVolume - endVolume);
+                for (auto it = this->begin(); it != this->end(); ++it) {
+                    it->second = scale * (it->second - endVolume) + endVolume;
+                }
+            }
+            clampVolume();
+        }
+
+        status_t writeToParcel(Parcel *parcel) const {
+            if (parcel == nullptr) return BAD_VALUE;
+            return parcel->writeInt32((int32_t)mType)
+                    ?: parcel->writeInt32(mId)
+                    ?: mType == TYPE_ID
+                        ? NO_ERROR
+                        : parcel->writeInt32((int32_t)mOptionFlags)
+                            ?: parcel->writeDouble(mDurationMs)
+                            ?: Interpolator<S, T>::writeToParcel(parcel);
+        }
+
+        status_t readFromParcel(const Parcel &parcel) {
+            int32_t type, optionFlags;
+            return parcel.readInt32(&type)
+                    ?: setType((Type)type)
+                    ?: parcel.readInt32(&mId)
+                    ?: mType == TYPE_ID
+                        ? NO_ERROR
+                        : parcel.readInt32(&optionFlags)
+                            ?: setOptionFlags((OptionFlag)optionFlags)
+                            ?: parcel.readDouble(&mDurationMs)
+                            ?: Interpolator<S, T>::readFromParcel(parcel)
+                            ?: checkCurve();
+        }
+
+        std::string toString() const {
+            std::stringstream ss;
+            ss << "mType: " << mType << std::endl;
+            ss << "mId: " << mId << std::endl;
+            if (mType != TYPE_ID) {
+                ss << "mOptionFlags: " << mOptionFlags << std::endl;
+                ss << "mDurationMs: " << mDurationMs << std::endl;
+                ss << Interpolator<S, T>::toString().c_str();
+            }
+            return ss.str();
+        }
+
+    private:
+        Type mType;
+        int32_t mId;
+        OptionFlag mOptionFlags;
+        double mDurationMs;
+    }; // Configuration
+
+    // must match with VolumeShaper.java in frameworks/base
+    // TODO document per VolumeShaper.java flags.
+    class Operation : public RefBase {
+    public:
+        enum Flag : int32_t {
+            FLAG_NONE      = 0,
+            FLAG_REVERSE   = (1 << 0),
+            FLAG_TERMINATE = (1 << 1),
+            FLAG_JOIN      = (1 << 2),
+            FLAG_DELAY     = (1 << 3),
+            FLAG_CREATE_IF_NECESSARY = (1 << 4),
+
+            FLAG_ALL       = (FLAG_REVERSE | FLAG_TERMINATE | FLAG_JOIN | FLAG_DELAY
+                            | FLAG_CREATE_IF_NECESSARY),
+        };
+
+        Operation()
+            : Operation(FLAG_NONE, -1 /* replaceId */) {
+        }
+
+        explicit Operation(Flag flags, int replaceId)
+            : Operation(flags, replaceId, std::numeric_limits<S>::quiet_NaN() /* xOffset */) {
+        }
+
+        Operation(const Operation &operation)
+            : Operation(operation.mFlags, operation.mReplaceId, operation.mXOffset) {
+        }
+
+        explicit Operation(Flag flags, int replaceId, S xOffset)
+            : mFlags(flags)
+            , mReplaceId(replaceId)
+            , mXOffset(xOffset) {
+        }
+
+        int32_t getReplaceId() const {
+            return mReplaceId;
+        }
+
+        void setReplaceId(int32_t replaceId) {
+            mReplaceId = replaceId;
+        }
+
+        S getXOffset() const {
+            return mXOffset;
+        }
+
+        void setXOffset(S xOffset) {
+            mXOffset = xOffset;
+        }
+
+        Flag getFlags() const {
+            return mFlags;
+        }
+
+        status_t setFlags(Flag flags) {
+            if ((flags & ~FLAG_ALL) != 0) {
+                ALOGE("flags has invalid bits: %#x", flags);
+                return BAD_VALUE;
+            }
+            mFlags = flags;
+            return NO_ERROR;
+        }
+
+        status_t writeToParcel(Parcel *parcel) const {
+            if (parcel == nullptr) return BAD_VALUE;
+            return parcel->writeInt32((int32_t)mFlags)
+                    ?: parcel->writeInt32(mReplaceId)
+                    ?: parcel->writeFloat(mXOffset);
+        }
+
+        status_t readFromParcel(const Parcel &parcel) {
+            int32_t flags;
+            return parcel.readInt32(&flags)
+                    ?: parcel.readInt32(&mReplaceId)
+                    ?: parcel.readFloat(&mXOffset)
+                    ?: setFlags((Flag)flags);
+        }
+
+        std::string toString() const {
+            std::stringstream ss;
+            ss << "mFlags: " << mFlags << std::endl;
+            ss << "mReplaceId: " << mReplaceId << std::endl;
+            ss << "mXOffset: " << mXOffset << std::endl;
+            return ss.str();
+        }
+
+    private:
+        Flag mFlags;
+        int32_t mReplaceId;
+        S mXOffset;
+    }; // Operation
+
+    // must match with VolumeShaper.java in frameworks/base
+    class State : public RefBase {
+    public:
+        explicit State(T volume, S xOffset)
+            : mVolume(volume)
+            , mXOffset(xOffset) {
+        }
+
+        State()
+            : State(-1.f, -1.f) { }
+
+        T getVolume() const {
+            return mVolume;
+        }
+
+        void setVolume(T volume) {
+            mVolume = volume;
+        }
+
+        S getXOffset() const {
+            return mXOffset;
+        }
+
+        void setXOffset(S xOffset) {
+            mXOffset = xOffset;
+        }
+
+        status_t writeToParcel(Parcel *parcel) const {
+            if (parcel == nullptr) return BAD_VALUE;
+            return parcel->writeFloat(mVolume)
+                    ?: parcel->writeFloat(mXOffset);
+        }
+
+        status_t readFromParcel(const Parcel &parcel) {
+            return parcel.readFloat(&mVolume)
+                     ?: parcel.readFloat(&mXOffset);
+        }
+
+        std::string toString() const {
+            std::stringstream ss;
+            ss << "mVolume: " << mVolume << std::endl;
+            ss << "mXOffset: " << mXOffset << std::endl;
+            return ss.str();
+        }
+
+    private:
+        T mVolume;
+        S mXOffset;
+    }; // State
+
+    template <typename R>
+    class Translate {
+    public:
+        Translate()
+            : mOffset(0)
+            , mScale(1) {
+        }
+
+        R getOffset() const {
+            return mOffset;
+        }
+
+        void setOffset(R offset) {
+            mOffset = offset;
+        }
+
+        R getScale() const {
+            return mScale;
+        }
+
+        void setScale(R scale) {
+            mScale = scale;
+        }
+
+        R operator()(R in) const {
+            return mScale * (in - mOffset);
+        }
+
+        std::string toString() const {
+            std::stringstream ss;
+            ss << "mOffset: " << mOffset << std::endl;
+            ss << "mScale: " << mScale << std::endl;
+            return ss.str();
+        }
+
+    private:
+        R mOffset;
+        R mScale;
+    }; // Translate
+
+    static int64_t convertTimespecToUs(const struct timespec &tv)
+    {
+        return tv.tv_sec * 1000000ll + tv.tv_nsec / 1000;
+    }
+
+    // current monotonic time in microseconds.
+    static int64_t getNowUs()
+    {
+        struct timespec tv;
+        if (clock_gettime(CLOCK_MONOTONIC, &tv) != 0) {
+            return 0; // system is really sick, just return 0 for consistency.
+        }
+        return convertTimespecToUs(tv);
+    }
+
+    // TODO: Since we pass configuration and operation as shared pointers
+    // there is a potential risk that the caller may modify these after
+    // delivery.  Currently, we don't require copies made here.
+    explicit VolumeShaper(
+            const sp<VolumeShaper::Configuration> &configuration,
+            const sp<VolumeShaper::Operation> &operation)
+        : mConfiguration(configuration) // we do not make a copy
+        , mOperation(operation)         // ditto
+        , mStartFrame(-1)
+        , mLastVolume(T(1))
+        , mLastXOffset(0.f)
+        , mDelayXOffset(std::numeric_limits<S>::quiet_NaN()) {
+        if (configuration.get() != nullptr
+                && (getFlags() & VolumeShaper::Operation::FLAG_DELAY) == 0) {
+            mLastVolume = configuration->first().second;
+        }
+    }
+
+    void updatePosition(int64_t startFrame, double sampleRate) {
+        double scale = (mConfiguration->last().first - mConfiguration->first().first)
+                        / (mConfiguration->getDurationMs() * 0.001 * sampleRate);
+        const double minScale = 1. / INT64_MAX;
+        scale = std::max(scale, minScale);
+        const S xOffset = std::isnan(mDelayXOffset) ? mConfiguration->first().first : mDelayXOffset;
+        VS_LOG("update position: scale %lf  frameCount:%lld, sampleRate:%lf, xOffset:%f",
+                scale, (long long) startFrame, sampleRate, xOffset);
+
+        mXTranslate.setOffset(startFrame - xOffset / scale);
+        mXTranslate.setScale(scale);
+        VS_LOG("translate: %s", mXTranslate.toString().c_str());
+    }
+
+    // We allow a null operation here, though VolumeHandler always provides one.
+    VolumeShaper::Operation::Flag getFlags() const {
+        return mOperation == nullptr
+                ? VolumeShaper::Operation::FLAG_NONE :mOperation->getFlags();
+    }
+
+    sp<VolumeShaper::State> getState() const {
+        return new VolumeShaper::State(mLastVolume, mLastXOffset);
+    }
+
+    void setDelayXOffset(S xOffset) {
+        mDelayXOffset = xOffset;
+    }
+
+    std::pair<T /* volume */, bool /* active */> getVolume(
+            int64_t trackFrameCount, double trackSampleRate) {
+        if ((getFlags() & VolumeShaper::Operation::FLAG_DELAY) != 0) {
+            VS_LOG("delayed VolumeShaper, ignoring");
+            mLastVolume = T(1);
+            mLastXOffset = 0.;
+            return std::make_pair(T(1), false);
+        }
+        const bool clockTime = (mConfiguration->getOptionFlags()
+                & VolumeShaper::Configuration::OPTION_FLAG_CLOCK_TIME) != 0;
+        const int64_t frameCount = clockTime ? getNowUs() : trackFrameCount;
+        const double sampleRate = clockTime ? 1000000 : trackSampleRate;
+
+        if (mStartFrame < 0) {
+            updatePosition(frameCount, sampleRate);
+            mStartFrame = frameCount;
+        }
+        VS_LOG("frameCount: %lld", (long long)frameCount);
+        S x = mXTranslate((T)frameCount);
+        VS_LOG("translation: %f", x);
+
+        // handle reversal of position
+        if (getFlags() & VolumeShaper::Operation::FLAG_REVERSE) {
+            x = 1.f - x;
+            VS_LOG("reversing to %f", x);
+            if (x < mConfiguration->first().first) {
+                mLastXOffset = 1.f;
+                const T volume = mConfiguration->adjustVolume(
+                        mConfiguration->first().second);  // persist last value
+                VS_LOG("persisting volume %f", volume);
+                mLastVolume = volume;
+                return std::make_pair(volume, false);
+            }
+            if (x > mConfiguration->last().first) {
+                mLastXOffset = 0.f;
+                mLastVolume = 1.f;
+                return std::make_pair(T(1), true); // too early
+            }
+        } else {
+            if (x < mConfiguration->first().first) {
+                mLastXOffset = 0.f;
+                mLastVolume = 1.f;
+                return std::make_pair(T(1), true); // too early
+            }
+            if (x > mConfiguration->last().first) {
+                mLastXOffset = 1.f;
+                const T volume = mConfiguration->adjustVolume(
+                        mConfiguration->last().second);  // persist last value
+                VS_LOG("persisting volume %f", volume);
+                mLastVolume = volume;
+                return std::make_pair(volume, false);
+            }
+        }
+        mLastXOffset = x;
+        // x contains the location on the volume curve to use.
+        const T unscaledVolume = mConfiguration->findY(x);
+        const T volume = mConfiguration->adjustVolume(unscaledVolume); // handle log scale
+        VS_LOG("volume: %f  unscaled: %f", volume, unscaledVolume);
+        mLastVolume = volume;
+        return std::make_pair(volume, true);
+    }
+
+    std::string toString() const {
+        std::stringstream ss;
+        ss << "StartFrame: " << mStartFrame << std::endl;
+        ss << mXTranslate.toString().c_str();
+        if (mConfiguration.get() == nullptr) {
+            ss << "VolumeShaper::Configuration: nullptr" << std::endl;
+        } else {
+            ss << "VolumeShaper::Configuration:" << std::endl;
+            ss << mConfiguration->toString().c_str();
+        }
+        if (mOperation.get() == nullptr) {
+            ss << "VolumeShaper::Operation: nullptr" << std::endl;
+        } else {
+            ss << "VolumeShaper::Operation:" << std::endl;
+            ss << mOperation->toString().c_str();
+        }
+        return ss.str();
+    }
+
+    Translate<S> mXTranslate; // x axis translation from frames (in usec for clock time)
+    sp<VolumeShaper::Configuration> mConfiguration;
+    sp<VolumeShaper::Operation> mOperation;
+    int64_t mStartFrame; // starting frame, non-negative when started (in usec for clock time)
+    T mLastVolume;       // last computed interpolated volume (y-axis)
+    S mLastXOffset;      // last computed interpolated xOffset/time (x-axis)
+    S mDelayXOffset;     // delay xOffset on first volumeshaper start.
+}; // VolumeShaper
+
+// VolumeHandler combines the volume factors of multiple VolumeShapers and handles
+// multiple thread access by synchronizing all public methods.
+class VolumeHandler : public RefBase {
+public:
+    using S = float;
+    using T = float;
+
+    // A volume handler which just keeps track of active VolumeShapers does not need sampleRate.
+    VolumeHandler()
+        : VolumeHandler(0 /* sampleRate */) {
+    }
+
+    explicit VolumeHandler(uint32_t sampleRate)
+        : mSampleRate((double)sampleRate)
+        , mLastFrame(0)
+        , mVolumeShaperIdCounter(VolumeShaper::kSystemIdMax) {
+    }
+
+    VolumeShaper::Status applyVolumeShaper(
+            const sp<VolumeShaper::Configuration> &configuration,
+            const sp<VolumeShaper::Operation> &operation) {
+        VS_LOG("applyVolumeShaper:configuration: %s", configuration->toString().c_str());
+        VS_LOG("applyVolumeShaper:operation: %s", operation->toString().c_str());
+        AutoMutex _l(mLock);
+        if (configuration == nullptr) {
+            ALOGE("null configuration");
+            return VolumeShaper::Status(BAD_VALUE);
+        }
+        if (operation == nullptr) {
+            ALOGE("null operation");
+            return VolumeShaper::Status(BAD_VALUE);
+        }
+        const int32_t id = configuration->getId();
+        if (id < 0) {
+            ALOGE("negative id: %d", id);
+            return VolumeShaper::Status(BAD_VALUE);
+        }
+        VS_LOG("applyVolumeShaper id: %d", id);
+
+        switch (configuration->getType()) {
+        case VolumeShaper::Configuration::TYPE_SCALE: {
+            const int replaceId = operation->getReplaceId();
+            if (replaceId >= 0) {
+                auto replaceIt = findId_l(replaceId);
+                if (replaceIt == mVolumeShapers.end()) {
+                    ALOGW("cannot find replace id: %d", replaceId);
+                } else {
+                    if ((replaceIt->getFlags() & VolumeShaper::Operation::FLAG_JOIN) != 0) {
+                        // For join, we scale the start volume of the current configuration
+                        // to match the last-used volume of the replacing VolumeShaper.
+                        auto state = replaceIt->getState();
+                        if (state->getXOffset() >= 0) { // valid
+                            const T volume = state->getVolume();
+                            ALOGD("join: scaling start volume to %f", volume);
+                            configuration->scaleToStartVolume(volume);
+                        }
+                    }
+                    (void)mVolumeShapers.erase(replaceIt);
+                }
+                operation->setReplaceId(-1);
+            }
+            // check if we have another of the same id.
+            auto oldIt = findId_l(id);
+            if (oldIt != mVolumeShapers.end()) {
+                if ((operation->getFlags()
+                        & VolumeShaper::Operation::FLAG_CREATE_IF_NECESSARY) != 0) {
+                    // TODO: move the case to a separate function.
+                    goto HANDLE_TYPE_ID; // no need to create, take over existing id.
+                }
+                ALOGW("duplicate id, removing old %d", id);
+                (void)mVolumeShapers.erase(oldIt);
+            }
+            // create new VolumeShaper
+            mVolumeShapers.emplace_back(configuration, operation);
+        }
+        // fall through to handle the operation
+        HANDLE_TYPE_ID:
+        case VolumeShaper::Configuration::TYPE_ID: {
+            VS_LOG("trying to find id: %d", id);
+            auto it = findId_l(id);
+            if (it == mVolumeShapers.end()) {
+                VS_LOG("couldn't find id: %d", id);
+                return VolumeShaper::Status(INVALID_OPERATION);
+            }
+            if ((it->getFlags() & VolumeShaper::Operation::FLAG_TERMINATE) != 0) {
+                VS_LOG("terminate id: %d", id);
+                mVolumeShapers.erase(it);
+                break;
+            }
+            const bool clockTime = (it->mConfiguration->getOptionFlags()
+                    & VolumeShaper::Configuration::OPTION_FLAG_CLOCK_TIME) != 0;
+            if ((it->getFlags() & VolumeShaper::Operation::FLAG_REVERSE) !=
+                    (operation->getFlags() & VolumeShaper::Operation::FLAG_REVERSE)) {
+                const int64_t frameCount = clockTime ? VolumeShaper::getNowUs() : mLastFrame;
+                const S x = it->mXTranslate((T)frameCount);
+                VS_LOG("reverse translation: %f", x);
+                // reflect position
+                S target = 1.f - x;
+                if (target < it->mConfiguration->first().first) {
+                    VS_LOG("clamp to start - begin immediately");
+                    target = 0.;
+                }
+                VS_LOG("target reverse: %f", target);
+                it->mXTranslate.setOffset(it->mXTranslate.getOffset()
+                        + (x - target) / it->mXTranslate.getScale());
+            }
+            const S xOffset = operation->getXOffset();
+            if (!std::isnan(xOffset)) {
+                const int64_t frameCount = clockTime ? VolumeShaper::getNowUs() : mLastFrame;
+                const S x = it->mXTranslate((T)frameCount);
+                VS_LOG("xOffset translation: %f", x);
+                const S target = xOffset; // offset
+                VS_LOG("xOffset target x offset: %f", target);
+                it->mXTranslate.setOffset(it->mXTranslate.getOffset()
+                        + (x - target) / it->mXTranslate.getScale());
+                it->setDelayXOffset(xOffset);
+            }
+            it->mOperation = operation; // replace the operation
+        } break;
+        }
+        return VolumeShaper::Status(id);
+    }
+
+    sp<VolumeShaper::State> getVolumeShaperState(int id) {
+        AutoMutex _l(mLock);
+        auto it = findId_l(id);
+        if (it == mVolumeShapers.end()) {
+            VS_LOG("cannot find state for id: %d", id);
+            return nullptr;
+        }
+        return it->getState();
+    }
+
+    std::pair<T /* volume */, bool /* active */> getVolume(int64_t trackFrameCount) {
+        AutoMutex _l(mLock);
+        mLastFrame = trackFrameCount;
+        T volume(1);
+        size_t activeCount = 0;
+        for (auto it = mVolumeShapers.begin(); it != mVolumeShapers.end();) {
+            std::pair<T, bool> shaperVolume =
+                    it->getVolume(trackFrameCount, mSampleRate);
+            volume *= shaperVolume.first;
+            activeCount += shaperVolume.second;
+            ++it;
+        }
+        return std::make_pair(volume, activeCount != 0);
+    }
+
+    std::string toString() const {
+        AutoMutex _l(mLock);
+        std::stringstream ss;
+        ss << "mSampleRate: " << mSampleRate << std::endl;
+        ss << "mLastFrame: " << mLastFrame << std::endl;
+        for (const auto &shaper : mVolumeShapers) {
+            ss << shaper.toString().c_str();
+        }
+        return ss.str();
+    }
+
+    void forall(const std::function<VolumeShaper::Status (
+            const sp<VolumeShaper::Configuration> &configuration,
+            const sp<VolumeShaper::Operation> &operation)> &lambda) {
+        AutoMutex _l(mLock);
+        for (const auto &shaper : mVolumeShapers) {
+            VS_LOG("forall applying lambda");
+            (void)lambda(shaper.mConfiguration, shaper.mOperation);
+        }
+    }
+
+    void reset() {
+        AutoMutex _l(mLock);
+        mVolumeShapers.clear();
+        mLastFrame = -1;
+        // keep mVolumeShaperIdCounter as is.
+    }
+
+    // Sets the configuration id if necessary - This is based on the counter
+    // internal to the VolumeHandler.
+    void setIdIfNecessary(const sp<VolumeShaper::Configuration> &configuration) {
+        if (configuration->getType() == VolumeShaper::Configuration::TYPE_SCALE) {
+            const int id = configuration->getId();
+            if (id == -1) {
+                // Reassign to a unique id, skipping system ids.
+                AutoMutex _l(mLock);
+                while (true) {
+                    if (mVolumeShaperIdCounter == INT32_MAX) {
+                        mVolumeShaperIdCounter = VolumeShaper::kSystemIdMax;
+                    } else {
+                        ++mVolumeShaperIdCounter;
+                    }
+                    if (findId_l(mVolumeShaperIdCounter) != mVolumeShapers.end()) {
+                        continue; // collision with an existing id.
+                    }
+                    configuration->setId(mVolumeShaperIdCounter);
+                    ALOGD("setting id to %d", mVolumeShaperIdCounter);
+                    break;
+                }
+            }
+        }
+    }
+
+private:
+    std::list<VolumeShaper>::iterator findId_l(int32_t id) {
+        std::list<VolumeShaper>::iterator it = mVolumeShapers.begin();
+        for (; it != mVolumeShapers.end(); ++it) {
+            if (it->mConfiguration->getId() == id) {
+                break;
+            }
+        }
+        return it;
+    }
+
+    mutable Mutex mLock;
+    double mSampleRate; // in samples (frames) per second
+    int64_t mLastFrame; // logging purpose only
+    int32_t mVolumeShaperIdCounter; // a counter to return a unique volume shaper id.
+    std::list<VolumeShaper> mVolumeShapers; // list provides stable iterators on erase
+}; // VolumeHandler
+
+} // namespace android
+
+#pragma pop_macro("LOG_TAG")
+
+#endif // ANDROID_VOLUME_SHAPER_H
diff --git a/include/media/audiohal b/include/media/audiohal
new file mode 120000
index 0000000..37e2c39
--- /dev/null
+++ b/include/media/audiohal
@@ -0,0 +1 @@
+../../media/libaudiohal/include
\ No newline at end of file
diff --git a/include/media/convert.h b/include/media/convert.h
new file mode 120000
index 0000000..3e09482
--- /dev/null
+++ b/include/media/convert.h
@@ -0,0 +1 @@
+../../media/libmedia/include/convert.h
\ No newline at end of file
diff --git a/include/media/mediametadataretriever.h b/include/media/mediametadataretriever.h
new file mode 120000
index 0000000..1992b05
--- /dev/null
+++ b/include/media/mediametadataretriever.h
@@ -0,0 +1 @@
+../../media/libmedia/include/mediametadataretriever.h
\ No newline at end of file
diff --git a/include/media/mediaplayer.h b/include/media/mediaplayer.h
deleted file mode 100644
index 389ec01..0000000
--- a/include/media/mediaplayer.h
+++ /dev/null
@@ -1,295 +0,0 @@
-/*
- * Copyright (C) 2007 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_MEDIAPLAYER_H
-#define ANDROID_MEDIAPLAYER_H
-
-#include <arpa/inet.h>
-
-#include <binder/IMemory.h>
-
-#include <media/AudioResamplerPublic.h>
-#include <media/IMediaPlayerClient.h>
-#include <media/IMediaPlayer.h>
-#include <media/IMediaDeathNotifier.h>
-#include <media/IStreamSource.h>
-
-#include <utils/KeyedVector.h>
-#include <utils/String8.h>
-
-struct ANativeWindow;
-
-namespace android {
-
-struct AVSyncSettings;
-class IGraphicBufferProducer;
-class Surface;
-
-enum media_event_type {
-    MEDIA_NOP               = 0, // interface test message
-    MEDIA_PREPARED          = 1,
-    MEDIA_PLAYBACK_COMPLETE = 2,
-    MEDIA_BUFFERING_UPDATE  = 3,
-    MEDIA_SEEK_COMPLETE     = 4,
-    MEDIA_SET_VIDEO_SIZE    = 5,
-    MEDIA_STARTED           = 6,
-    MEDIA_PAUSED            = 7,
-    MEDIA_STOPPED           = 8,
-    MEDIA_SKIPPED           = 9,
-    MEDIA_TIMED_TEXT        = 99,
-    MEDIA_ERROR             = 100,
-    MEDIA_INFO              = 200,
-    MEDIA_SUBTITLE_DATA     = 201,
-    MEDIA_META_DATA         = 202,
-};
-
-// Generic error codes for the media player framework.  Errors are fatal, the
-// playback must abort.
-//
-// Errors are communicated back to the client using the
-// MediaPlayerListener::notify method defined below.
-// In this situation, 'notify' is invoked with the following:
-//   'msg' is set to MEDIA_ERROR.
-//   'ext1' should be a value from the enum media_error_type.
-//   'ext2' contains an implementation dependant error code to provide
-//          more details. Should default to 0 when not used.
-//
-// The codes are distributed as follow:
-//   0xx: Reserved
-//   1xx: Android Player errors. Something went wrong inside the MediaPlayer.
-//   2xx: Media errors (e.g Codec not supported). There is a problem with the
-//        media itself.
-//   3xx: Runtime errors. Some extraordinary condition arose making the playback
-//        impossible.
-//
-enum media_error_type {
-    // 0xx
-    MEDIA_ERROR_UNKNOWN = 1,
-    // 1xx
-    MEDIA_ERROR_SERVER_DIED = 100,
-    // 2xx
-    MEDIA_ERROR_NOT_VALID_FOR_PROGRESSIVE_PLAYBACK = 200,
-    // 3xx
-};
-
-
-// Info and warning codes for the media player framework.  These are non fatal,
-// the playback is going on but there might be some user visible issues.
-//
-// Info and warning messages are communicated back to the client using the
-// MediaPlayerListener::notify method defined below.  In this situation,
-// 'notify' is invoked with the following:
-//   'msg' is set to MEDIA_INFO.
-//   'ext1' should be a value from the enum media_info_type.
-//   'ext2' contains an implementation dependant info code to provide
-//          more details. Should default to 0 when not used.
-//
-// The codes are distributed as follow:
-//   0xx: Reserved
-//   7xx: Android Player info/warning (e.g player lagging behind.)
-//   8xx: Media info/warning (e.g media badly interleaved.)
-//
-enum media_info_type {
-    // 0xx
-    MEDIA_INFO_UNKNOWN = 1,
-    // The player was started because it was used as the next player for another
-    // player, which just completed playback
-    MEDIA_INFO_STARTED_AS_NEXT = 2,
-    // The player just pushed the very first video frame for rendering
-    MEDIA_INFO_RENDERING_START = 3,
-    // 7xx
-    // The video is too complex for the decoder: it can't decode frames fast
-    // enough. Possibly only the audio plays fine at this stage.
-    MEDIA_INFO_VIDEO_TRACK_LAGGING = 700,
-    // MediaPlayer is temporarily pausing playback internally in order to
-    // buffer more data.
-    MEDIA_INFO_BUFFERING_START = 701,
-    // MediaPlayer is resuming playback after filling buffers.
-    MEDIA_INFO_BUFFERING_END = 702,
-    // Bandwidth in recent past
-    MEDIA_INFO_NETWORK_BANDWIDTH = 703,
-
-    // 8xx
-    // Bad interleaving means that a media has been improperly interleaved or not
-    // interleaved at all, e.g has all the video samples first then all the audio
-    // ones. Video is playing but a lot of disk seek may be happening.
-    MEDIA_INFO_BAD_INTERLEAVING = 800,
-    // The media is not seekable (e.g live stream).
-    MEDIA_INFO_NOT_SEEKABLE = 801,
-    // New media metadata is available.
-    MEDIA_INFO_METADATA_UPDATE = 802,
-
-    //9xx
-    MEDIA_INFO_TIMED_TEXT_ERROR = 900,
-};
-
-
-
-enum media_player_states {
-    MEDIA_PLAYER_STATE_ERROR        = 0,
-    MEDIA_PLAYER_IDLE               = 1 << 0,
-    MEDIA_PLAYER_INITIALIZED        = 1 << 1,
-    MEDIA_PLAYER_PREPARING          = 1 << 2,
-    MEDIA_PLAYER_PREPARED           = 1 << 3,
-    MEDIA_PLAYER_STARTED            = 1 << 4,
-    MEDIA_PLAYER_PAUSED             = 1 << 5,
-    MEDIA_PLAYER_STOPPED            = 1 << 6,
-    MEDIA_PLAYER_PLAYBACK_COMPLETE  = 1 << 7
-};
-
-// Keep KEY_PARAMETER_* in sync with MediaPlayer.java.
-// The same enum space is used for both set and get, in case there are future keys that
-// can be both set and get.  But as of now, all parameters are either set only or get only.
-enum media_parameter_keys {
-    // Streaming/buffering parameters
-    KEY_PARAMETER_CACHE_STAT_COLLECT_FREQ_MS = 1100,            // set only
-
-    // Return a Parcel containing a single int, which is the channel count of the
-    // audio track, or zero for error (e.g. no audio track) or unknown.
-    KEY_PARAMETER_AUDIO_CHANNEL_COUNT = 1200,                   // get only
-
-    // Playback rate expressed in permille (1000 is normal speed), saved as int32_t, with negative
-    // values used for rewinding or reverse playback.
-    KEY_PARAMETER_PLAYBACK_RATE_PERMILLE = 1300,                // set only
-
-    // Set a Parcel containing the value of a parcelled Java AudioAttribute instance
-    KEY_PARAMETER_AUDIO_ATTRIBUTES = 1400                       // set only
-};
-
-// Keep INVOKE_ID_* in sync with MediaPlayer.java.
-enum media_player_invoke_ids {
-    INVOKE_ID_GET_TRACK_INFO = 1,
-    INVOKE_ID_ADD_EXTERNAL_SOURCE = 2,
-    INVOKE_ID_ADD_EXTERNAL_SOURCE_FD = 3,
-    INVOKE_ID_SELECT_TRACK = 4,
-    INVOKE_ID_UNSELECT_TRACK = 5,
-    INVOKE_ID_SET_VIDEO_SCALING_MODE = 6,
-    INVOKE_ID_GET_SELECTED_TRACK = 7
-};
-
-// Keep MEDIA_TRACK_TYPE_* in sync with MediaPlayer.java.
-enum media_track_type {
-    MEDIA_TRACK_TYPE_UNKNOWN = 0,
-    MEDIA_TRACK_TYPE_VIDEO = 1,
-    MEDIA_TRACK_TYPE_AUDIO = 2,
-    MEDIA_TRACK_TYPE_TIMEDTEXT = 3,
-    MEDIA_TRACK_TYPE_SUBTITLE = 4,
-    MEDIA_TRACK_TYPE_METADATA = 5,
-};
-
-// ----------------------------------------------------------------------------
-// ref-counted object for callbacks
-class MediaPlayerListener: virtual public RefBase
-{
-public:
-    virtual void notify(int msg, int ext1, int ext2, const Parcel *obj) = 0;
-};
-
-struct IMediaHTTPService;
-
-class MediaPlayer : public BnMediaPlayerClient,
-                    public virtual IMediaDeathNotifier
-{
-public:
-    MediaPlayer();
-    ~MediaPlayer();
-            void            died();
-            void            disconnect();
-
-            status_t        setDataSource(
-                    const sp<IMediaHTTPService> &httpService,
-                    const char *url,
-                    const KeyedVector<String8, String8> *headers);
-
-            status_t        setDataSource(int fd, int64_t offset, int64_t length);
-            status_t        setDataSource(const sp<IDataSource> &source);
-            status_t        setVideoSurfaceTexture(
-                                    const sp<IGraphicBufferProducer>& bufferProducer);
-            status_t        setListener(const sp<MediaPlayerListener>& listener);
-            status_t        prepare();
-            status_t        prepareAsync();
-            status_t        start();
-            status_t        stop();
-            status_t        pause();
-            bool            isPlaying();
-            status_t        setPlaybackSettings(const AudioPlaybackRate& rate);
-            status_t        getPlaybackSettings(AudioPlaybackRate* rate /* nonnull */);
-            status_t        setSyncSettings(const AVSyncSettings& sync, float videoFpsHint);
-            status_t        getSyncSettings(
-                                    AVSyncSettings* sync /* nonnull */,
-                                    float* videoFps /* nonnull */);
-            status_t        getVideoWidth(int *w);
-            status_t        getVideoHeight(int *h);
-            status_t        seekTo(int msec);
-            status_t        getCurrentPosition(int *msec);
-            status_t        getDuration(int *msec);
-            status_t        reset();
-            status_t        setAudioStreamType(audio_stream_type_t type);
-            status_t        getAudioStreamType(audio_stream_type_t *type);
-            status_t        setLooping(int loop);
-            bool            isLooping();
-            status_t        setVolume(float leftVolume, float rightVolume);
-            void            notify(int msg, int ext1, int ext2, const Parcel *obj = NULL);
-            status_t        invoke(const Parcel& request, Parcel *reply);
-            status_t        setMetadataFilter(const Parcel& filter);
-            status_t        getMetadata(bool update_only, bool apply_filter, Parcel *metadata);
-            status_t        setAudioSessionId(audio_session_t sessionId);
-            audio_session_t getAudioSessionId();
-            status_t        setAuxEffectSendLevel(float level);
-            status_t        attachAuxEffect(int effectId);
-            status_t        setParameter(int key, const Parcel& request);
-            status_t        getParameter(int key, Parcel* reply);
-            status_t        setRetransmitEndpoint(const char* addrString, uint16_t port);
-            status_t        setNextMediaPlayer(const sp<MediaPlayer>& player);
-
-private:
-            void            clear_l();
-            status_t        seekTo_l(int msec);
-            status_t        prepareAsync_l();
-            status_t        getDuration_l(int *msec);
-            status_t        attachNewPlayer(const sp<IMediaPlayer>& player);
-            status_t        reset_l();
-            status_t        doSetRetransmitEndpoint(const sp<IMediaPlayer>& player);
-            status_t        checkStateForKeySet_l(int key);
-
-    sp<IMediaPlayer>            mPlayer;
-    thread_id_t                 mLockThreadId;
-    Mutex                       mLock;
-    Mutex                       mNotifyLock;
-    Condition                   mSignal;
-    sp<MediaPlayerListener>     mListener;
-    void*                       mCookie;
-    media_player_states         mCurrentState;
-    int                         mCurrentPosition;
-    int                         mSeekPosition;
-    bool                        mPrepareSync;
-    status_t                    mPrepareStatus;
-    audio_stream_type_t         mStreamType;
-    Parcel*                     mAudioAttributesParcel;
-    bool                        mLoop;
-    float                       mLeftVolume;
-    float                       mRightVolume;
-    int                         mVideoWidth;
-    int                         mVideoHeight;
-    audio_session_t             mAudioSessionId;
-    float                       mSendLevel;
-    struct sockaddr_in          mRetransmitEndpoint;
-    bool                        mRetransmitEndpointValid;
-};
-
-}; // namespace android
-
-#endif // ANDROID_MEDIAPLAYER_H
diff --git a/include/media/mediaplayer.h b/include/media/mediaplayer.h
new file mode 120000
index 0000000..2b1d298
--- /dev/null
+++ b/include/media/mediaplayer.h
@@ -0,0 +1 @@
+../../media/libmedia/include/mediaplayer.h
\ No newline at end of file
diff --git a/include/media/mediarecorder.h b/include/media/mediarecorder.h
deleted file mode 100644
index c3f39a2..0000000
--- a/include/media/mediarecorder.h
+++ /dev/null
@@ -1,274 +0,0 @@
-/*
- ** Copyright (C) 2008 The Android Open Source Project
- **
- ** Licensed under the Apache License, Version 2.0 (the "License");
- ** you may not use this file except in compliance with the License.
- ** You may obtain a copy of the License at
- **
- **     http://www.apache.org/licenses/LICENSE-2.0
- **
- ** Unless required by applicable law or agreed to in writing, software
- ** distributed under the License is distributed on an "AS IS" BASIS,
- ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- ** See the License for the specific language governing permissions and
- **
- ** limitations under the License.
- */
-
-#ifndef ANDROID_MEDIARECORDER_H
-#define ANDROID_MEDIARECORDER_H
-
-#include <utils/Log.h>
-#include <utils/threads.h>
-#include <utils/List.h>
-#include <utils/Errors.h>
-#include <media/IMediaRecorderClient.h>
-#include <media/IMediaDeathNotifier.h>
-
-namespace android {
-
-class Surface;
-class IMediaRecorder;
-class ICameraRecordingProxy;
-class IGraphicBufferProducer;
-struct PersistentSurface;
-class Surface;
-
-namespace hardware {
-class ICamera;
-}
-
-typedef void (*media_completion_f)(status_t status, void *cookie);
-
-enum video_source {
-    VIDEO_SOURCE_DEFAULT = 0,
-    VIDEO_SOURCE_CAMERA = 1,
-    VIDEO_SOURCE_SURFACE = 2,
-
-    VIDEO_SOURCE_LIST_END  // must be last - used to validate audio source type
-};
-
-//Please update media/java/android/media/MediaRecorder.java if the following is updated.
-enum output_format {
-    OUTPUT_FORMAT_DEFAULT = 0,
-    OUTPUT_FORMAT_THREE_GPP = 1,
-    OUTPUT_FORMAT_MPEG_4 = 2,
-
-
-    OUTPUT_FORMAT_AUDIO_ONLY_START = 3, // Used in validating the output format.  Should be the
-                                        //  at the start of the audio only output formats.
-
-    /* These are audio only file formats */
-    OUTPUT_FORMAT_RAW_AMR = 3, //to be backward compatible
-    OUTPUT_FORMAT_AMR_NB = 3,
-    OUTPUT_FORMAT_AMR_WB = 4,
-    OUTPUT_FORMAT_AAC_ADIF = 5,
-    OUTPUT_FORMAT_AAC_ADTS = 6,
-
-    OUTPUT_FORMAT_AUDIO_ONLY_END = 7, // Used in validating the output format.  Should be the
-                                      //  at the end of the audio only output formats.
-
-    /* Stream over a socket, limited to a single stream */
-    OUTPUT_FORMAT_RTP_AVP = 7,
-
-    /* H.264/AAC data encapsulated in MPEG2/TS */
-    OUTPUT_FORMAT_MPEG2TS = 8,
-
-    /* VP8/VORBIS data in a WEBM container */
-    OUTPUT_FORMAT_WEBM = 9,
-
-    OUTPUT_FORMAT_LIST_END // must be last - used to validate format type
-};
-
-enum audio_encoder {
-    AUDIO_ENCODER_DEFAULT = 0,
-    AUDIO_ENCODER_AMR_NB = 1,
-    AUDIO_ENCODER_AMR_WB = 2,
-    AUDIO_ENCODER_AAC = 3,
-    AUDIO_ENCODER_HE_AAC = 4,
-    AUDIO_ENCODER_AAC_ELD = 5,
-    AUDIO_ENCODER_VORBIS = 6,
-
-    AUDIO_ENCODER_LIST_END // must be the last - used to validate the audio encoder type
-};
-
-enum video_encoder {
-    VIDEO_ENCODER_DEFAULT = 0,
-    VIDEO_ENCODER_H263 = 1,
-    VIDEO_ENCODER_H264 = 2,
-    VIDEO_ENCODER_MPEG_4_SP = 3,
-    VIDEO_ENCODER_VP8 = 4,
-    VIDEO_ENCODER_HEVC = 5,
-
-    VIDEO_ENCODER_LIST_END // must be the last - used to validate the video encoder type
-};
-
-/*
- * The state machine of the media_recorder.
- */
-enum media_recorder_states {
-    // Error state.
-    MEDIA_RECORDER_ERROR                 =      0,
-
-    // Recorder was just created.
-    MEDIA_RECORDER_IDLE                  = 1 << 0,
-
-    // Recorder has been initialized.
-    MEDIA_RECORDER_INITIALIZED           = 1 << 1,
-
-    // Configuration of the recorder has been completed.
-    MEDIA_RECORDER_DATASOURCE_CONFIGURED = 1 << 2,
-
-    // Recorder is ready to start.
-    MEDIA_RECORDER_PREPARED              = 1 << 3,
-
-    // Recording is in progress.
-    MEDIA_RECORDER_RECORDING             = 1 << 4,
-};
-
-// The "msg" code passed to the listener in notify.
-enum media_recorder_event_type {
-    MEDIA_RECORDER_EVENT_LIST_START               = 1,
-    MEDIA_RECORDER_EVENT_ERROR                    = 1,
-    MEDIA_RECORDER_EVENT_INFO                     = 2,
-    MEDIA_RECORDER_EVENT_LIST_END                 = 99,
-
-    // Track related event types
-    MEDIA_RECORDER_TRACK_EVENT_LIST_START         = 100,
-    MEDIA_RECORDER_TRACK_EVENT_ERROR              = 100,
-    MEDIA_RECORDER_TRACK_EVENT_INFO               = 101,
-    MEDIA_RECORDER_TRACK_EVENT_LIST_END           = 1000,
-};
-
-/*
- * The (part of) "what" code passed to the listener in notify.
- * When the error or info type is track specific, the what has
- * the following layout:
- * the left-most 16-bit is meant for error or info type.
- * the right-most 4-bit is meant for track id.
- * the rest is reserved.
- *
- * | track id | reserved |     error or info type     |
- * 31         28         16                           0
- *
- */
-enum media_recorder_error_type {
-    MEDIA_RECORDER_ERROR_UNKNOWN                   = 1,
-
-    // Track related error type
-    MEDIA_RECORDER_TRACK_ERROR_LIST_START          = 100,
-    MEDIA_RECORDER_TRACK_ERROR_GENERAL             = 100,
-    MEDIA_RECORDER_ERROR_VIDEO_NO_SYNC_FRAME       = 200,
-    MEDIA_RECORDER_TRACK_ERROR_LIST_END            = 1000,
-};
-
-// The codes are distributed as follow:
-//   0xx: Reserved
-//   8xx: General info/warning
-//
-enum media_recorder_info_type {
-    MEDIA_RECORDER_INFO_UNKNOWN                   = 1,
-
-    MEDIA_RECORDER_INFO_MAX_DURATION_REACHED      = 800,
-    MEDIA_RECORDER_INFO_MAX_FILESIZE_REACHED      = 801,
-
-    // All track related informtional events start here
-    MEDIA_RECORDER_TRACK_INFO_LIST_START           = 1000,
-    MEDIA_RECORDER_TRACK_INFO_COMPLETION_STATUS    = 1000,
-    MEDIA_RECORDER_TRACK_INFO_PROGRESS_IN_TIME     = 1001,
-    MEDIA_RECORDER_TRACK_INFO_TYPE                 = 1002,
-    MEDIA_RECORDER_TRACK_INFO_DURATION_MS          = 1003,
-
-    // The time to measure the max chunk duration
-    MEDIA_RECORDER_TRACK_INFO_MAX_CHUNK_DUR_MS     = 1004,
-
-    MEDIA_RECORDER_TRACK_INFO_ENCODED_FRAMES       = 1005,
-
-    // The time to measure how well the audio and video
-    // track data is interleaved.
-    MEDIA_RECORDER_TRACK_INTER_CHUNK_TIME_MS       = 1006,
-
-    // The time to measure system response. Note that
-    // the delay does not include the intentional delay
-    // we use to eliminate the recording sound.
-    MEDIA_RECORDER_TRACK_INFO_INITIAL_DELAY_MS     = 1007,
-
-    // The time used to compensate for initial A/V sync.
-    MEDIA_RECORDER_TRACK_INFO_START_OFFSET_MS      = 1008,
-
-    // Total number of bytes of the media data.
-    MEDIA_RECORDER_TRACK_INFO_DATA_KBYTES          = 1009,
-
-    MEDIA_RECORDER_TRACK_INFO_LIST_END             = 2000,
-};
-
-// ----------------------------------------------------------------------------
-// ref-counted object for callbacks
-class MediaRecorderListener: virtual public RefBase
-{
-public:
-    virtual void notify(int msg, int ext1, int ext2) = 0;
-};
-
-class MediaRecorder : public BnMediaRecorderClient,
-                      public virtual IMediaDeathNotifier
-{
-public:
-    MediaRecorder(const String16& opPackageName);
-    ~MediaRecorder();
-
-    void        died();
-    status_t    initCheck();
-    status_t    setCamera(const sp<hardware::ICamera>& camera,
-            const sp<ICameraRecordingProxy>& proxy);
-    status_t    setPreviewSurface(const sp<IGraphicBufferProducer>& surface);
-    status_t    setVideoSource(int vs);
-    status_t    setAudioSource(int as);
-    status_t    setOutputFormat(int of);
-    status_t    setVideoEncoder(int ve);
-    status_t    setAudioEncoder(int ae);
-    status_t    setOutputFile(int fd, int64_t offset, int64_t length);
-    status_t    setVideoSize(int width, int height);
-    status_t    setVideoFrameRate(int frames_per_second);
-    status_t    setParameters(const String8& params);
-    status_t    setListener(const sp<MediaRecorderListener>& listener);
-    status_t    setClientName(const String16& clientName);
-    status_t    prepare();
-    status_t    getMaxAmplitude(int* max);
-    status_t    start();
-    status_t    stop();
-    status_t    reset();
-    status_t    pause();
-    status_t    resume();
-    status_t    init();
-    status_t    close();
-    status_t    release();
-    void        notify(int msg, int ext1, int ext2);
-    status_t    setInputSurface(const sp<PersistentSurface>& surface);
-    sp<IGraphicBufferProducer>     querySurfaceMediaSourceFromMediaServer();
-
-private:
-    void                    doCleanUp();
-    status_t                doReset();
-
-    sp<IMediaRecorder>          mMediaRecorder;
-    sp<MediaRecorderListener>   mListener;
-
-    // Reference to IGraphicBufferProducer
-    // for encoding GL Frames. That is useful only when the
-    // video source is set to VIDEO_SOURCE_GRALLOC_BUFFER
-    sp<IGraphicBufferProducer>  mSurfaceMediaSource;
-
-    media_recorder_states       mCurrentState;
-    bool                        mIsAudioSourceSet;
-    bool                        mIsVideoSourceSet;
-    bool                        mIsAudioEncoderSet;
-    bool                        mIsVideoEncoderSet;
-    bool                        mIsOutputFileSet;
-    Mutex                       mLock;
-    Mutex                       mNotifyLock;
-};
-
-};  // namespace android
-
-#endif // ANDROID_MEDIARECORDER_H
diff --git a/include/media/mediarecorder.h b/include/media/mediarecorder.h
new file mode 120000
index 0000000..08c826f
--- /dev/null
+++ b/include/media/mediarecorder.h
@@ -0,0 +1 @@
+../../media/libmedia/include/mediarecorder.h
\ No newline at end of file
diff --git a/include/media/mediascanner.h b/include/media/mediascanner.h
new file mode 120000
index 0000000..42c3507
--- /dev/null
+++ b/include/media/mediascanner.h
@@ -0,0 +1 @@
+../../media/libmedia/include/mediascanner.h
\ No newline at end of file
diff --git a/include/media/nbaio b/include/media/nbaio
new file mode 120000
index 0000000..67d0ba6
--- /dev/null
+++ b/include/media/nbaio
@@ -0,0 +1 @@
+../../media/libnbaio/include
\ No newline at end of file
diff --git a/include/media/nbaio/AudioStreamInSource.h b/include/media/nbaio/AudioStreamInSource.h
deleted file mode 100644
index a6e7992..0000000
--- a/include/media/nbaio/AudioStreamInSource.h
+++ /dev/null
@@ -1,65 +0,0 @@
-/*
- * Copyright (C) 2012 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_AUDIO_STREAM_IN_SOURCE_H
-#define ANDROID_AUDIO_STREAM_IN_SOURCE_H
-
-#include <hardware/audio.h>
-#include "NBAIO.h"
-
-namespace android {
-
-// not multi-thread safe
-class AudioStreamInSource : public NBAIO_Source {
-
-public:
-    AudioStreamInSource(audio_stream_in *stream);
-    virtual ~AudioStreamInSource();
-
-    // NBAIO_Port interface
-
-    virtual ssize_t negotiate(const NBAIO_Format offers[], size_t numOffers,
-                              NBAIO_Format counterOffers[], size_t& numCounterOffers);
-    //virtual NBAIO_Format format() const;
-
-    // NBAIO_Sink interface
-
-    //virtual size_t framesRead() const;
-    virtual int64_t framesOverrun();
-    virtual int64_t overruns() { (void) framesOverrun(); return mOverruns; }
-
-    // This is an over-estimate, and could dupe the caller into making a blocking read()
-    // FIXME Use an audio HAL API to query the buffer filling status when it's available.
-    virtual ssize_t availableToRead() { return mStreamBufferSizeBytes / mFrameSize; }
-
-    virtual ssize_t read(void *buffer, size_t count);
-
-    // NBAIO_Sink end
-
-#if 0   // until necessary
-    audio_stream_in *stream() const { return mStream; }
-#endif
-
-private:
-    audio_stream_in * const mStream;
-    size_t              mStreamBufferSizeBytes; // as reported by get_buffer_size()
-    int64_t             mFramesOverrun;
-    int64_t             mOverruns;
-};
-
-}   // namespace android
-
-#endif  // ANDROID_AUDIO_STREAM_IN_SOURCE_H
diff --git a/include/media/nbaio/AudioStreamOutSink.h b/include/media/nbaio/AudioStreamOutSink.h
deleted file mode 100644
index e86b018..0000000
--- a/include/media/nbaio/AudioStreamOutSink.h
+++ /dev/null
@@ -1,65 +0,0 @@
-/*
- * Copyright (C) 2012 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_AUDIO_STREAM_OUT_SINK_H
-#define ANDROID_AUDIO_STREAM_OUT_SINK_H
-
-#include <hardware/audio.h>
-#include "NBAIO.h"
-
-namespace android {
-
-// not multi-thread safe
-class AudioStreamOutSink : public NBAIO_Sink {
-
-public:
-    AudioStreamOutSink(audio_stream_out *stream);
-    virtual ~AudioStreamOutSink();
-
-    // NBAIO_Port interface
-
-    virtual ssize_t negotiate(const NBAIO_Format offers[], size_t numOffers,
-                              NBAIO_Format counterOffers[], size_t& numCounterOffers);
-    //virtual NBAIO_Format format();
-
-    // NBAIO_Sink interface
-
-    //virtual size_t framesWritten() const;
-    //virtual size_t framesUnderrun() const;
-    //virtual size_t underruns() const;
-
-    // This is an over-estimate, and could dupe the caller into making a blocking write()
-    // FIXME Use an audio HAL API to query the buffer emptying status when it's available.
-    virtual ssize_t availableToWrite() const { return mStreamBufferSizeBytes / mFrameSize; }
-
-    virtual ssize_t write(const void *buffer, size_t count);
-
-    virtual status_t getTimestamp(ExtendedTimestamp &timestamp);
-
-    // NBAIO_Sink end
-
-#if 0   // until necessary
-    audio_stream_out *stream() const { return mStream; }
-#endif
-
-private:
-    audio_stream_out * const mStream;
-    size_t              mStreamBufferSizeBytes; // as reported by get_buffer_size()
-};
-
-}   // namespace android
-
-#endif  // ANDROID_AUDIO_STREAM_OUT_SINK_H
diff --git a/include/media/nbaio/LibsndfileSink.h b/include/media/nbaio/LibsndfileSink.h
deleted file mode 100644
index f5d53d5..0000000
--- a/include/media/nbaio/LibsndfileSink.h
+++ /dev/null
@@ -1,54 +0,0 @@
-/*
- * Copyright (C) 2012 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_AUDIO_LIBSNDFILE_SINK_H
-#define ANDROID_AUDIO_LIBSNDFILE_SINK_H
-
-#include "NBAIO.h"
-#include "sndfile.h"
-
-// Implementation of NBAIO_Sink that wraps a libsndfile opened in SFM_WRITE mode
-
-namespace android {
-
-class LibsndfileSink : public NBAIO_Sink {
-
-public:
-    LibsndfileSink(SNDFILE *sndfile, const SF_INFO &sfinfo);
-    virtual ~LibsndfileSink();
-
-    // NBAIO_Port interface
-
-    //virtual ssize_t negotiate(const NBAIO_Format offers[], size_t numOffers,
-    //                          NBAIO_Format counterOffers[], size_t& numCounterOffers);
-    //virtual NBAIO_Format format() const;
-
-    // NBAIO_Sink interface
-
-    //virtual size_t framesWritten() const;
-    //virtual size_t framesUnderrun() const;
-    //virtual size_t underruns() const;
-    //virtual ssize_t availableToWrite() const;
-    virtual ssize_t write(const void *buffer, size_t count);
-    //virtual ssize_t writeVia(writeVia_t via, size_t total, void *user, size_t block);
-
-private:
-    SNDFILE *                   mSndfile;
-};
-
-}   // namespace android
-
-#endif  // ANDROID_AUDIO_LIBSNDFILE_SINK_H
diff --git a/include/media/nbaio/MonoPipe.h b/include/media/nbaio/MonoPipe.h
deleted file mode 100644
index d2cd218..0000000
--- a/include/media/nbaio/MonoPipe.h
+++ /dev/null
@@ -1,107 +0,0 @@
-/*
- * Copyright (C) 2012 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_AUDIO_MONO_PIPE_H
-#define ANDROID_AUDIO_MONO_PIPE_H
-
-#include <time.h>
-#include "NBAIO.h"
-#include <media/SingleStateQueue.h>
-
-namespace android {
-
-typedef SingleStateQueue<ExtendedTimestamp> ExtendedTimestampSingleStateQueue;
-
-// MonoPipe is similar to Pipe except:
-//  - supports only a single reader, called MonoPipeReader
-//  - write() cannot overrun; instead it will return a short actual count if insufficient space
-//  - write() can optionally block if the pipe is full
-// Like Pipe, it is not multi-thread safe for either writer or reader
-// but writer and reader can be different threads.
-class MonoPipe : public NBAIO_Sink {
-
-    friend class MonoPipeReader;
-
-public:
-    // reqFrames will be rounded up to a power of 2, and all slots are available. Must be >= 2.
-    // Note: whatever shares this object with another thread needs to do so in an SMP-safe way (like
-    // creating it the object before creating the other thread, or storing the object with a
-    // release_store). Otherwise the other thread could see a partially-constructed object.
-    MonoPipe(size_t reqFrames, const NBAIO_Format& format, bool writeCanBlock = false);
-    virtual ~MonoPipe();
-
-    // NBAIO_Port interface
-
-    //virtual ssize_t negotiate(const NBAIO_Format offers[], size_t numOffers,
-    //                          NBAIO_Format counterOffers[], size_t& numCounterOffers);
-    //virtual NBAIO_Format format() const;
-
-    // NBAIO_Sink interface
-
-    //virtual int64_t framesWritten() const;
-    //virtual int64_t framesUnderrun() const;
-    //virtual int64_t underruns() const;
-
-    virtual ssize_t availableToWrite() const;
-    virtual ssize_t write(const void *buffer, size_t count);
-    //virtual ssize_t writeVia(writeVia_t via, size_t total, void *user, size_t block);
-
-            // average number of frames present in the pipe under normal conditions.
-            // See throttling mechanism in MonoPipe::write()
-            size_t  getAvgFrames() const { return mSetpoint; }
-            void    setAvgFrames(size_t setpoint);
-            size_t  maxFrames() const { return mMaxFrames; }
-
-            // Set the shutdown state for the write side of a pipe.
-            // This may be called by an unrelated thread.  When shutdown state is 'true',
-            // a write that would otherwise block instead returns a short transfer count.
-            // There is no guarantee how long it will take for the shutdown to be recognized,
-            // but it will not be an unbounded amount of time.
-            // The state can be restored to normal by calling shutdown(false).
-            void    shutdown(bool newState = true);
-
-            // Return true if the write side of a pipe is currently shutdown.
-            bool    isShutdown();
-
-            // Return NO_ERROR if there is a timestamp available
-            status_t getTimestamp(ExtendedTimestamp &timestamp);
-
-private:
-    const size_t    mReqFrames;     // as requested in constructor, unrounded
-    const size_t    mMaxFrames;     // always a power of 2
-    void * const    mBuffer;
-    // mFront and mRear will never be separated by more than mMaxFrames.
-    // 32-bit overflow is possible if the pipe is active for a long time, but if that happens it's
-    // safe because we "&" with (mMaxFrames-1) at end of computations to calculate a buffer index.
-    volatile int32_t mFront;        // written by reader with android_atomic_release_store,
-                                    // read by writer with android_atomic_acquire_load
-    volatile int32_t mRear;         // written by writer with android_atomic_release_store,
-                                    // read by reader with android_atomic_acquire_load
-    bool            mWriteTsValid;  // whether mWriteTs is valid
-    struct timespec mWriteTs;       // time that the previous write() completed
-    size_t          mSetpoint;      // target value for pipe fill depth
-    const bool      mWriteCanBlock; // whether write() should block if the pipe is full
-
-    bool            mIsShutdown;    // whether shutdown(true) was called, no barriers are needed
-
-    ExtendedTimestampSingleStateQueue::Shared      mTimestampShared;
-    ExtendedTimestampSingleStateQueue::Mutator     mTimestampMutator;
-    ExtendedTimestampSingleStateQueue::Observer    mTimestampObserver;
-};
-
-}   // namespace android
-
-#endif  // ANDROID_AUDIO_MONO_PIPE_H
diff --git a/include/media/nbaio/MonoPipeReader.h b/include/media/nbaio/MonoPipeReader.h
deleted file mode 100644
index b3c891d..0000000
--- a/include/media/nbaio/MonoPipeReader.h
+++ /dev/null
@@ -1,66 +0,0 @@
-/*
- * Copyright (C) 2012 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_AUDIO_MONO_PIPE_READER_H
-#define ANDROID_AUDIO_MONO_PIPE_READER_H
-
-#include "MonoPipe.h"
-
-namespace android {
-
-// MonoPipeReader is safe for only a single reader thread
-class MonoPipeReader : public NBAIO_Source {
-
-public:
-
-    // Construct a MonoPipeReader and associate it with a MonoPipe;
-    // any data already in the pipe is visible to this PipeReader.
-    // There can be only a single MonoPipeReader per MonoPipe.
-    // FIXME make this constructor a factory method of MonoPipe.
-    MonoPipeReader(MonoPipe* pipe);
-    virtual ~MonoPipeReader();
-
-    // NBAIO_Port interface
-
-    //virtual ssize_t negotiate(const NBAIO_Format offers[], size_t numOffers,
-    //                          NBAIO_Format counterOffers[], size_t& numCounterOffers);
-    //virtual NBAIO_Format format() const;
-
-    // NBAIO_Source interface
-
-    //virtual size_t framesRead() const;
-    //virtual size_t framesOverrun();
-    //virtual size_t overruns();
-
-    virtual ssize_t availableToRead();
-
-    virtual ssize_t read(void *buffer, size_t count);
-
-    virtual void    onTimestamp(const ExtendedTimestamp &timestamp);
-
-    // NBAIO_Source end
-
-#if 0   // until necessary
-    MonoPipe* pipe() const { return mPipe; }
-#endif
-
-private:
-    MonoPipe * const mPipe;
-};
-
-}   // namespace android
-
-#endif  // ANDROID_AUDIO_MONO_PIPE_READER_H
diff --git a/include/media/nbaio/NBAIO.h b/include/media/nbaio/NBAIO.h
deleted file mode 100644
index 212f8e8..0000000
--- a/include/media/nbaio/NBAIO.h
+++ /dev/null
@@ -1,315 +0,0 @@
-/*
- * Copyright (C) 2012 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_AUDIO_NBAIO_H
-#define ANDROID_AUDIO_NBAIO_H
-
-// Non-blocking audio I/O interface
-//
-// This header file has the abstract interfaces only.  Concrete implementation classes are declared
-// elsewhere.  Implementations _should_ be non-blocking for all methods, especially read() and
-// write(), but this is not enforced.  In general, implementations do not need to be multi-thread
-// safe, and any exceptions are noted in the particular implementation.
-
-#include <limits.h>
-#include <stdlib.h>
-#include <utils/Errors.h>
-#include <utils/RefBase.h>
-#include <media/AudioTimestamp.h>
-#include <system/audio.h>
-
-namespace android {
-
-// In addition to the usual status_t
-enum {
-    NEGOTIATE    = 0x80000010,  // Must (re-)negotiate format.  For negotiate() only, the offeree
-                                // doesn't accept offers, and proposes counter-offers
-    OVERRUN      = 0x80000011,  // availableToRead(), read(), or readVia() detected lost input due
-                                // to overrun; an event is counted and the caller should re-try
-    UNDERRUN     = 0x80000012,  // availableToWrite(), write(), or writeVia() detected a gap in
-                                // output due to underrun (not being called often enough, or with
-                                // enough data); an event is counted and the caller should re-try
-};
-
-// Negotiation of format is based on the data provider and data sink, or the data consumer and
-// data source, exchanging prioritized arrays of offers and counter-offers until a single offer is
-// mutually agreed upon.  Each offer is an NBAIO_Format.  For simplicity and performance,
-// NBAIO_Format is a typedef that ties together the most important combinations of the various
-// attributes, rather than a struct with separate fields for format, sample rate, channel count,
-// interleave, packing, alignment, etc.  The reason is that NBAIO_Format tries to abstract out only
-// the combinations that are actually needed within AudioFlinger.  If the list of combinations grows
-// too large, then this decision should be re-visited.
-// Sample rate and channel count are explicit, PCM interleaved 16-bit is assumed.
-struct NBAIO_Format {
-// FIXME make this a class, and change Format_... global methods to class methods
-//private:
-    unsigned    mSampleRate;
-    unsigned    mChannelCount;
-    audio_format_t  mFormat;
-    size_t      mFrameSize;
-};
-
-extern const NBAIO_Format Format_Invalid;
-
-// Return the frame size of an NBAIO_Format in bytes
-size_t Format_frameSize(const NBAIO_Format& format);
-
-// Convert a sample rate in Hz and channel count to an NBAIO_Format
-// FIXME rename
-NBAIO_Format Format_from_SR_C(unsigned sampleRate, unsigned channelCount, audio_format_t format);
-
-// Return the sample rate in Hz of an NBAIO_Format
-unsigned Format_sampleRate(const NBAIO_Format& format);
-
-// Return the channel count of an NBAIO_Format
-unsigned Format_channelCount(const NBAIO_Format& format);
-
-// Callbacks used by NBAIO_Sink::writeVia() and NBAIO_Source::readVia() below.
-typedef ssize_t (*writeVia_t)(void *user, void *buffer, size_t count);
-typedef ssize_t (*readVia_t)(void *user, const void *buffer, size_t count);
-
-// Check whether an NBAIO_Format is valid
-bool Format_isValid(const NBAIO_Format& format);
-
-// Compare two NBAIO_Format values
-bool Format_isEqual(const NBAIO_Format& format1, const NBAIO_Format& format2);
-
-// Abstract class (interface) representing a data port.
-class NBAIO_Port : public RefBase {
-
-public:
-
-    // negotiate() must called first.  The purpose of negotiate() is to check compatibility of
-    // formats, not to automatically adapt if they are incompatible.  It's the responsibility of
-    // whoever sets up the graph connections to make sure formats are compatible, and this method
-    // just verifies that.  The edges are "dumb" and don't attempt to adapt to bad connections.
-    // How it works: offerer proposes an array of formats, in descending order of preference from
-    // offers[0] to offers[numOffers - 1].  If offeree accepts one of these formats, it returns
-    // the index of that offer.  Otherwise, offeree sets numCounterOffers to the number of
-    // counter-offers (up to a maximumum of the entry value of numCounterOffers), fills in the
-    // provided array counterOffers[] with its counter-offers, in descending order of preference
-    // from counterOffers[0] to counterOffers[numCounterOffers - 1], and returns NEGOTIATE.
-    // Note that since the offerer allocates space for counter-offers, but only the offeree knows
-    // how many counter-offers it has, there may be insufficient space for all counter-offers.
-    // In that case, the offeree sets numCounterOffers to the requested number of counter-offers
-    // (which is greater than the entry value of numCounterOffers), fills in as many of the most
-    // important counterOffers as will fit, and returns NEGOTIATE.  As this implies a re-allocation,
-    // it should be used as a last resort.  It is preferable for the offerer to simply allocate a
-    // larger space to begin with, and/or for the offeree to tolerate a smaller space than desired.
-    // Alternatively, the offerer can pass NULL for offers and counterOffers, and zero for
-    // numOffers. This indicates that it has not allocated space for any counter-offers yet.
-    // In this case, the offerree should set numCounterOffers appropriately and return NEGOTIATE.
-    // Then the offerer will allocate the correct amount of memory and retry.
-    // Format_Invalid is not allowed as either an offer or counter-offer.
-    // Returns:
-    //  >= 0        Offer accepted.
-    //  NEGOTIATE   No offer accepted, and counter-offer(s) optionally made. See above for details.
-    virtual ssize_t negotiate(const NBAIO_Format offers[], size_t numOffers,
-                              NBAIO_Format counterOffers[], size_t& numCounterOffers);
-
-    // Return the current negotiated format, or Format_Invalid if negotiation has not been done,
-    // or if re-negotiation is required.
-    virtual NBAIO_Format format() const { return mNegotiated ? mFormat : Format_Invalid; }
-
-protected:
-    NBAIO_Port(const NBAIO_Format& format) : mNegotiated(false), mFormat(format),
-                                             mFrameSize(Format_frameSize(format)) { }
-    virtual ~NBAIO_Port() { }
-
-    // Implementations are free to ignore these if they don't need them
-
-    bool            mNegotiated;    // mNegotiated implies (mFormat != Format_Invalid)
-    NBAIO_Format    mFormat;        // (mFormat != Format_Invalid) does not imply mNegotiated
-    size_t          mFrameSize;     // assign in parallel with any assignment to mFormat
-};
-
-// Abstract class (interface) representing a non-blocking data sink, for use by a data provider.
-class NBAIO_Sink : public NBAIO_Port {
-
-public:
-
-    // For the next two APIs:
-    // 32 bits rolls over after 27 hours at 44.1 kHz; if that concerns you then poll periodically.
-
-    // Return the number of frames written successfully since construction.
-    virtual int64_t framesWritten() const { return mFramesWritten; }
-
-    // Number of frames lost due to underrun since construction.
-    virtual int64_t framesUnderrun() const { return 0; }
-
-    // Number of underruns since construction, where a set of contiguous lost frames is one event.
-    virtual int64_t underruns() const { return 0; }
-
-    // Estimate of number of frames that could be written successfully now without blocking.
-    // When a write() is actually attempted, the implementation is permitted to return a smaller or
-    // larger transfer count, however it will make a good faith effort to give an accurate estimate.
-    // Errors:
-    //  NEGOTIATE   (Re-)negotiation is needed.
-    //  UNDERRUN    write() has not been called frequently enough, or with enough frames to keep up.
-    //              An underrun event is counted, and the caller should re-try this operation.
-    //  WOULD_BLOCK Determining how many frames can be written without blocking would itself block.
-    virtual ssize_t availableToWrite() const { return SSIZE_MAX; }
-
-    // Transfer data to sink from single input buffer.  Implies a copy.
-    // Inputs:
-    //  buffer  Non-NULL buffer owned by provider.
-    //  count   Maximum number of frames to transfer.
-    // Return value:
-    //  > 0     Number of frames successfully transferred prior to first error.
-    //  = 0     Count was zero.
-    //  < 0     status_t error occurred prior to the first frame transfer.
-    // Errors:
-    //  NEGOTIATE   (Re-)negotiation is needed.
-    //  WOULD_BLOCK No frames can be transferred without blocking.
-    //  UNDERRUN    write() has not been called frequently enough, or with enough frames to keep up.
-    //              An underrun event is counted, and the caller should re-try this operation.
-    virtual ssize_t write(const void *buffer, size_t count) = 0;
-
-    // Transfer data to sink using a series of callbacks.  More suitable for zero-fill, synthesis,
-    // and non-contiguous transfers (e.g. circular buffer or writev).
-    // Inputs:
-    //  via     Callback function that the sink will call as many times as needed to consume data.
-    //  total   Estimate of the number of frames the provider has available.  This is an estimate,
-    //          and it can provide a different number of frames during the series of callbacks.
-    //  user    Arbitrary void * reserved for data provider.
-    //  block   Number of frames per block, that is a suggested value for 'count' in each callback.
-    //          Zero means no preference.  This parameter is a hint only, and may be ignored.
-    // Return value:
-    //  > 0     Total number of frames successfully transferred prior to first error.
-    //  = 0     Count was zero.
-    //  < 0     status_t error occurred prior to the first frame transfer.
-    // Errors:
-    //  NEGOTIATE   (Re-)negotiation is needed.
-    //  WOULD_BLOCK No frames can be transferred without blocking.
-    //  UNDERRUN    write() has not been called frequently enough, or with enough frames to keep up.
-    //              An underrun event is counted, and the caller should re-try this operation.
-    //
-    // The 'via' callback is called by the data sink as follows:
-    // Inputs:
-    //  user    Arbitrary void * reserved for data provider.
-    //  buffer  Non-NULL buffer owned by sink that callback should fill in with data,
-    //          up to a maximum of 'count' frames.
-    //  count   Maximum number of frames to transfer during this callback.
-    // Return value:
-    //  > 0     Number of frames successfully transferred during this callback prior to first error.
-    //  = 0     Count was zero.
-    //  < 0     status_t error occurred prior to the first frame transfer during this callback.
-    virtual ssize_t writeVia(writeVia_t via, size_t total, void *user, size_t block = 0);
-
-    // Returns NO_ERROR if a timestamp is available.  The timestamp includes the total number
-    // of frames presented to an external observer, together with the value of CLOCK_MONOTONIC
-    // as of this presentation count.  The timestamp parameter is undefined if error is returned.
-    virtual status_t getTimestamp(ExtendedTimestamp& /*timestamp*/) { return INVALID_OPERATION; }
-
-protected:
-    NBAIO_Sink(const NBAIO_Format& format = Format_Invalid) : NBAIO_Port(format), mFramesWritten(0)
-            { }
-    virtual ~NBAIO_Sink() { }
-
-    // Implementations are free to ignore these if they don't need them
-    int64_t  mFramesWritten;
-};
-
-// Abstract class (interface) representing a non-blocking data source, for use by a data consumer.
-class NBAIO_Source : public NBAIO_Port {
-
-public:
-
-    // For the next two APIs:
-    // 32 bits rolls over after 27 hours at 44.1 kHz; if that concerns you then poll periodically.
-
-    // Number of frames read successfully since construction.
-    virtual int64_t framesRead() const { return mFramesRead; }
-
-    // Number of frames lost due to overrun since construction.
-    // Not const because implementations may need to do I/O.
-    virtual int64_t framesOverrun() /*const*/ { return 0; }
-
-    // Number of overruns since construction, where a set of contiguous lost frames is one event.
-    // Not const because implementations may need to do I/O.
-    virtual int64_t overruns() /*const*/ { return 0; }
-
-    // Estimate of number of frames that could be read successfully now.
-    // When a read() is actually attempted, the implementation is permitted to return a smaller or
-    // larger transfer count, however it will make a good faith effort to give an accurate estimate.
-    // Errors:
-    //  NEGOTIATE   (Re-)negotiation is needed.
-    //  OVERRUN     One or more frames were lost due to overrun, try again to read more recent data.
-    //  WOULD_BLOCK Determining how many frames can be read without blocking would itself block.
-    virtual ssize_t availableToRead() { return SSIZE_MAX; }
-
-    // Transfer data from source into single destination buffer.  Implies a copy.
-    // Inputs:
-    //  buffer  Non-NULL destination buffer owned by consumer.
-    //  count   Maximum number of frames to transfer.
-    // Return value:
-    //  > 0     Number of frames successfully transferred prior to first error.
-    //  = 0     Count was zero.
-    //  < 0     status_t error occurred prior to the first frame transfer.
-    // Errors:
-    //  NEGOTIATE   (Re-)negotiation is needed.
-    //  WOULD_BLOCK No frames can be transferred without blocking.
-    //  OVERRUN     read() has not been called frequently enough, or with enough frames to keep up.
-    //              One or more frames were lost due to overrun, try again to read more recent data.
-    virtual ssize_t read(void *buffer, size_t count) = 0;
-
-    // Transfer data from source using a series of callbacks.  More suitable for zero-fill,
-    // synthesis, and non-contiguous transfers (e.g. circular buffer or readv).
-    // Inputs:
-    //  via     Callback function that the source will call as many times as needed to provide data.
-    //  total   Estimate of the number of frames the consumer desires.  This is an estimate,
-    //          and it can consume a different number of frames during the series of callbacks.
-    //  user    Arbitrary void * reserved for data consumer.
-    //  block   Number of frames per block, that is a suggested value for 'count' in each callback.
-    //          Zero means no preference.  This parameter is a hint only, and may be ignored.
-    // Return value:
-    //  > 0     Total number of frames successfully transferred prior to first error.
-    //  = 0     Count was zero.
-    //  < 0     status_t error occurred prior to the first frame transfer.
-    // Errors:
-    //  NEGOTIATE   (Re-)negotiation is needed.
-    //  WOULD_BLOCK No frames can be transferred without blocking.
-    //  OVERRUN     read() has not been called frequently enough, or with enough frames to keep up.
-    //              One or more frames were lost due to overrun, try again to read more recent data.
-    //
-    // The 'via' callback is called by the data source as follows:
-    // Inputs:
-    //  user    Arbitrary void * reserved for data consumer.
-    //  dest    Non-NULL buffer owned by source that callback should consume data from,
-    //          up to a maximum of 'count' frames.
-    //  count   Maximum number of frames to transfer during this callback.
-    // Return value:
-    //  > 0     Number of frames successfully transferred during this callback prior to first error.
-    //  = 0     Count was zero.
-    //  < 0     status_t error occurred prior to the first frame transfer during this callback.
-    virtual ssize_t readVia(readVia_t via, size_t total, void *user, size_t block = 0);
-
-    // Invoked asynchronously by corresponding sink when a new timestamp is available.
-    // Default implementation ignores the timestamp.
-    virtual void    onTimestamp(const ExtendedTimestamp& /*timestamp*/) { }
-
-protected:
-    NBAIO_Source(const NBAIO_Format& format = Format_Invalid) : NBAIO_Port(format), mFramesRead(0)
-            { }
-    virtual ~NBAIO_Source() { }
-
-    // Implementations are free to ignore these if they don't need them
-    int64_t  mFramesRead;
-};
-
-}   // namespace android
-
-#endif  // ANDROID_AUDIO_NBAIO_H
diff --git a/include/media/nbaio/NBLog.h b/include/media/nbaio/NBLog.h
deleted file mode 100644
index 1297b51..0000000
--- a/include/media/nbaio/NBLog.h
+++ /dev/null
@@ -1,204 +0,0 @@
-/*
- * Copyright (C) 2013 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-// Non-blocking event logger intended for safe communication between processes via shared memory
-
-#ifndef ANDROID_MEDIA_NBLOG_H
-#define ANDROID_MEDIA_NBLOG_H
-
-#include <binder/IMemory.h>
-#include <utils/Mutex.h>
-#include <audio_utils/roundup.h>
-
-namespace android {
-
-class String8;
-
-class NBLog {
-
-public:
-
-class Writer;
-class Reader;
-
-private:
-
-enum Event {
-    EVENT_RESERVED,
-    EVENT_STRING,               // ASCII string, not NUL-terminated
-    EVENT_TIMESTAMP,            // clock_gettime(CLOCK_MONOTONIC)
-};
-
-// ---------------------------------------------------------------------------
-
-// representation of a single log entry in private memory
-struct Entry {
-    Entry(Event event, const void *data, size_t length)
-        : mEvent(event), mLength(length), mData(data) { }
-    /*virtual*/ ~Entry() { }
-
-    int     readAt(size_t offset) const;
-
-private:
-    friend class Writer;
-    Event       mEvent;     // event type
-    size_t      mLength;    // length of additional data, 0 <= mLength <= 255
-    const void *mData;      // event type-specific data
-};
-
-// representation of a single log entry in shared memory
-//  byte[0]             mEvent
-//  byte[1]             mLength
-//  byte[2]             mData[0]
-//  ...
-//  byte[2+i]           mData[i]
-//  ...
-//  byte[2+mLength-1]   mData[mLength-1]
-//  byte[2+mLength]     duplicate copy of mLength to permit reverse scan
-//  byte[3+mLength]     start of next log entry
-
-// located in shared memory
-struct Shared {
-    Shared() : mRear(0) { }
-    /*virtual*/ ~Shared() { }
-
-    volatile int32_t mRear;     // index one byte past the end of most recent Entry
-    char    mBuffer[0];         // circular buffer for entries
-};
-
-public:
-
-// ---------------------------------------------------------------------------
-
-// FIXME Timeline was intended to wrap Writer and Reader, but isn't actually used yet.
-// For now it is just a namespace for sharedSize().
-class Timeline : public RefBase {
-public:
-#if 0
-    Timeline(size_t size, void *shared = NULL);
-    virtual ~Timeline();
-#endif
-
-    // Input parameter 'size' is the desired size of the timeline in byte units.
-    // Returns the size rounded up to a power-of-2, plus the constant size overhead for indices.
-    static size_t sharedSize(size_t size);
-
-#if 0
-private:
-    friend class    Writer;
-    friend class    Reader;
-
-    const size_t    mSize;      // circular buffer size in bytes, must be a power of 2
-    bool            mOwn;       // whether I own the memory at mShared
-    Shared* const   mShared;    // pointer to shared memory
-#endif
-};
-
-// ---------------------------------------------------------------------------
-
-// Writer is thread-safe with respect to Reader, but not with respect to multiple threads
-// calling Writer methods.  If you need multi-thread safety for writing, use LockedWriter.
-class Writer : public RefBase {
-public:
-    Writer();                   // dummy nop implementation without shared memory
-
-    // Input parameter 'size' is the desired size of the timeline in byte units.
-    // The size of the shared memory must be at least Timeline::sharedSize(size).
-    Writer(size_t size, void *shared);
-    Writer(size_t size, const sp<IMemory>& iMemory);
-
-    virtual ~Writer() { }
-
-    virtual void    log(const char *string);
-    virtual void    logf(const char *fmt, ...) __attribute__ ((format (printf, 2, 3)));
-    virtual void    logvf(const char *fmt, va_list ap);
-    virtual void    logTimestamp();
-    virtual void    logTimestamp(const struct timespec& ts);
-
-    virtual bool    isEnabled() const;
-
-    // return value for all of these is the previous isEnabled()
-    virtual bool    setEnabled(bool enabled);   // but won't enable if no shared memory
-            bool    enable()    { return setEnabled(true); }
-            bool    disable()   { return setEnabled(false); }
-
-    sp<IMemory>     getIMemory() const  { return mIMemory; }
-
-private:
-    void    log(Event event, const void *data, size_t length);
-    void    log(const Entry *entry, bool trusted = false);
-
-    const size_t    mSize;      // circular buffer size in bytes, must be a power of 2
-    Shared* const   mShared;    // raw pointer to shared memory
-    const sp<IMemory> mIMemory; // ref-counted version
-    int32_t         mRear;      // my private copy of mShared->mRear
-    bool            mEnabled;   // whether to actually log
-};
-
-// ---------------------------------------------------------------------------
-
-// Similar to Writer, but safe for multiple threads to call concurrently
-class LockedWriter : public Writer {
-public:
-    LockedWriter();
-    LockedWriter(size_t size, void *shared);
-
-    virtual void    log(const char *string);
-    virtual void    logf(const char *fmt, ...) __attribute__ ((format (printf, 2, 3)));
-    virtual void    logvf(const char *fmt, va_list ap);
-    virtual void    logTimestamp();
-    virtual void    logTimestamp(const struct timespec& ts);
-
-    virtual bool    isEnabled() const;
-    virtual bool    setEnabled(bool enabled);
-
-private:
-    mutable Mutex   mLock;
-};
-
-// ---------------------------------------------------------------------------
-
-class Reader : public RefBase {
-public:
-
-    // Input parameter 'size' is the desired size of the timeline in byte units.
-    // The size of the shared memory must be at least Timeline::sharedSize(size).
-    Reader(size_t size, const void *shared);
-    Reader(size_t size, const sp<IMemory>& iMemory);
-
-    virtual ~Reader() { }
-
-    void    dump(int fd, size_t indent = 0);
-    bool    isIMemory(const sp<IMemory>& iMemory) const;
-
-private:
-    const size_t    mSize;      // circular buffer size in bytes, must be a power of 2
-    const Shared* const mShared; // raw pointer to shared memory
-    const sp<IMemory> mIMemory; // ref-counted version
-    int32_t     mFront;         // index of oldest acknowledged Entry
-    int     mFd;                // file descriptor
-    int     mIndent;            // indentation level
-
-    void    dumpLine(const String8& timestamp, String8& body);
-
-    static const size_t kSquashTimestamp = 5; // squash this many or more adjacent timestamps
-};
-
-};  // class NBLog
-
-}   // namespace android
-
-#endif  // ANDROID_MEDIA_NBLOG_H
diff --git a/include/media/nbaio/Pipe.h b/include/media/nbaio/Pipe.h
deleted file mode 100644
index cc95ff7..0000000
--- a/include/media/nbaio/Pipe.h
+++ /dev/null
@@ -1,69 +0,0 @@
-/*
- * Copyright (C) 2012 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_AUDIO_PIPE_H
-#define ANDROID_AUDIO_PIPE_H
-
-#include "NBAIO.h"
-
-namespace android {
-
-// Pipe is multi-thread safe for readers (see PipeReader), but safe for only a single writer thread.
-// It cannot UNDERRUN on write, unless we allow designation of a master reader that provides the
-// time-base. Readers can be added and removed dynamically, and it's OK to have no readers.
-class Pipe : public NBAIO_Sink {
-
-    friend class PipeReader;
-
-public:
-    // maxFrames will be rounded up to a power of 2, and all slots are available. Must be >= 2.
-    // buffer is an optional parameter specifying the virtual address of the pipe buffer,
-    // which must be of size roundup(maxFrames) * Format_frameSize(format) bytes.
-    Pipe(size_t maxFrames, const NBAIO_Format& format, void *buffer = NULL);
-
-    // If a buffer was specified in the constructor, it is not automatically freed by destructor.
-    virtual ~Pipe();
-
-    // NBAIO_Port interface
-
-    //virtual ssize_t negotiate(const NBAIO_Format offers[], size_t numOffers,
-    //                          NBAIO_Format counterOffers[], size_t& numCounterOffers);
-    //virtual NBAIO_Format format() const;
-
-    // NBAIO_Sink interface
-
-    //virtual int64_t framesWritten() const;
-    //virtual int64_t framesUnderrun() const;
-    //virtual int64_t underruns() const;
-
-    // The write side of a pipe permits overruns; flow control is the caller's responsibility.
-    // It doesn't return +infinity because that would guarantee an overrun.
-    virtual ssize_t availableToWrite() const { return mMaxFrames; }
-
-    virtual ssize_t write(const void *buffer, size_t count);
-    //virtual ssize_t writeVia(writeVia_t via, size_t total, void *user, size_t block);
-
-private:
-    const size_t    mMaxFrames;     // always a power of 2
-    void * const    mBuffer;
-    volatile int32_t mRear;         // written by android_atomic_release_store
-    volatile int32_t mReaders;      // number of PipeReader clients currently attached to this Pipe
-    const bool      mFreeBufferInDestructor;
-};
-
-}   // namespace android
-
-#endif  // ANDROID_AUDIO_PIPE_H
diff --git a/include/media/nbaio/PipeReader.h b/include/media/nbaio/PipeReader.h
deleted file mode 100644
index 7c733ad..0000000
--- a/include/media/nbaio/PipeReader.h
+++ /dev/null
@@ -1,65 +0,0 @@
-/*
- * Copyright (C) 2012 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_AUDIO_PIPE_READER_H
-#define ANDROID_AUDIO_PIPE_READER_H
-
-#include "Pipe.h"
-
-namespace android {
-
-// PipeReader is safe for only a single thread
-class PipeReader : public NBAIO_Source {
-
-public:
-
-    // Construct a PipeReader and associate it with a Pipe
-    // FIXME make this constructor a factory method of Pipe.
-    PipeReader(Pipe& pipe);
-    virtual ~PipeReader();
-
-    // NBAIO_Port interface
-
-    //virtual ssize_t negotiate(const NBAIO_Format offers[], size_t numOffers,
-    //                          NBAIO_Format counterOffers[], size_t& numCounterOffers);
-    //virtual NBAIO_Format format() const;
-
-    // NBAIO_Source interface
-
-    //virtual size_t framesRead() const;
-    virtual int64_t framesOverrun() { return mFramesOverrun; }
-    virtual int64_t overruns()  { return mOverruns; }
-
-    virtual ssize_t availableToRead();
-
-    virtual ssize_t read(void *buffer, size_t count);
-
-    // NBAIO_Source end
-
-#if 0   // until necessary
-    Pipe& pipe() const { return mPipe; }
-#endif
-
-private:
-    Pipe&       mPipe;
-    int32_t     mFront;         // follows behind mPipe.mRear
-    int64_t     mFramesOverrun;
-    int64_t     mOverruns;
-};
-
-}   // namespace android
-
-#endif  // ANDROID_AUDIO_PIPE_READER_H
diff --git a/include/media/omx/1.0/Conversion.h b/include/media/omx/1.0/Conversion.h
new file mode 100644
index 0000000..f3f8441
--- /dev/null
+++ b/include/media/omx/1.0/Conversion.h
@@ -0,0 +1,2177 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_MEDIA_OMX_V1_0__CONVERSION_H
+#define ANDROID_HARDWARE_MEDIA_OMX_V1_0__CONVERSION_H
+
+#include <vector>
+#include <list>
+
+#include <unistd.h>
+
+#include <hidl/MQDescriptor.h>
+#include <hidl/Status.h>
+#include <hidlmemory/mapping.h>
+
+#include <binder/Binder.h>
+#include <binder/Status.h>
+#include <ui/FenceTime.h>
+#include <cutils/native_handle.h>
+#include <gui/IGraphicBufferProducer.h>
+
+#include <media/OMXFenceParcelable.h>
+#include <media/OMXBuffer.h>
+#include <media/hardware/VideoAPI.h>
+
+#include <android/hidl/memory/1.0/IMemory.h>
+#include <android/hardware/media/omx/1.0/types.h>
+#include <android/hardware/media/omx/1.0/IOmx.h>
+#include <android/hardware/media/omx/1.0/IOmxNode.h>
+#include <android/hardware/media/omx/1.0/IOmxBufferProducer.h>
+#include <android/hardware/media/omx/1.0/IOmxBufferSource.h>
+#include <android/hardware/media/omx/1.0/IOmxObserver.h>
+#include <android/hardware/media/omx/1.0/IOmxProducerListener.h>
+#include <android/hardware/media/omx/1.0/IGraphicBufferSource.h>
+
+#include <android/IGraphicBufferSource.h>
+#include <android/IOMXBufferSource.h>
+
+namespace android {
+namespace hardware {
+namespace media {
+namespace omx {
+namespace V1_0 {
+namespace utils {
+
+using ::android::hardware::hidl_array;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::hidl_handle;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::sp;
+
+using ::android::String8;
+using ::android::OMXFenceParcelable;
+
+using ::android::hardware::media::omx::V1_0::Message;
+using ::android::omx_message;
+
+using ::android::hardware::media::omx::V1_0::ColorAspects;
+using ::android::hardware::media::V1_0::Rect;
+using ::android::hardware::media::V1_0::Region;
+
+using ::android::hardware::graphics::common::V1_0::Dataspace;
+
+using ::android::hardware::graphics::common::V1_0::PixelFormat;
+
+using ::android::OMXBuffer;
+
+using ::android::hardware::media::V1_0::AnwBuffer;
+using ::android::GraphicBuffer;
+
+using ::android::hardware::media::omx::V1_0::IOmx;
+using ::android::IOMX;
+
+using ::android::hardware::media::omx::V1_0::IOmxNode;
+using ::android::IOMXNode;
+
+using ::android::hardware::media::omx::V1_0::IOmxObserver;
+using ::android::IOMXObserver;
+
+using ::android::hardware::media::omx::V1_0::IOmxBufferSource;
+using ::android::IOMXBufferSource;
+
+using ::android::hardware::media::omx::V1_0::IOmxBufferProducer;
+using ::android::IGraphicBufferProducer;
+
+// native_handle_t helper functions.
+
+/**
+ * \brief Take an fd and create a native handle containing only the given fd.
+ * The created handle will need to be deleted manually with
+ * `native_handle_delete()`.
+ *
+ * \param[in] fd The source file descriptor (of type `int`).
+ * \return The create `native_handle_t*` that contains the given \p fd. If the
+ * supplied \p fd is negative, the created native handle will contain no file
+ * descriptors.
+ *
+ * If the native handle cannot be created, the return value will be
+ * `nullptr`.
+ *
+ * This function does not duplicate the file descriptor.
+ */
+inline native_handle_t* native_handle_create_from_fd(int fd) {
+    if (fd < 0) {
+        return native_handle_create(0, 0);
+    }
+    native_handle_t* nh = native_handle_create(1, 0);
+    if (nh == nullptr) {
+        return nullptr;
+    }
+    nh->data[0] = fd;
+    return nh;
+}
+
+/**
+ * \brief Extract a file descriptor from a native handle.
+ *
+ * \param[in] nh The source `native_handle_t*`.
+ * \param[in] index The index of the file descriptor in \p nh to read from. This
+ * input has the default value of `0`.
+ * \return The `index`-th file descriptor in \p nh. If \p nh does not have
+ * enough file descriptors, the returned value will be `-1`.
+ *
+ * This function does not duplicate the file descriptor.
+ */
+inline int native_handle_read_fd(native_handle_t const* nh, int index = 0) {
+    return ((nh == nullptr) || (nh->numFds == 0) ||
+            (nh->numFds <= index) || (index < 0)) ?
+            -1 : nh->data[index];
+}
+
+/**
+ * Conversion functions
+ * ====================
+ *
+ * There are two main directions of conversion:
+ * - `inTargetType(...)`: Create a wrapper whose lifetime depends on the
+ *   input. The wrapper has type `TargetType`.
+ * - `toTargetType(...)`: Create a standalone object of type `TargetType` that
+ *   corresponds to the input. The lifetime of the output does not depend on the
+ *   lifetime of the input.
+ * - `wrapIn(TargetType*, ...)`: Same as `inTargetType()`, but for `TargetType`
+ *   that cannot be copied and/or moved efficiently, or when there are multiple
+ *   output arguments.
+ * - `convertTo(TargetType*, ...)`: Same as `toTargetType()`, but for
+ *   `TargetType` that cannot be copied and/or moved efficiently, or when there
+ *   are multiple output arguments.
+ *
+ * `wrapIn()` and `convertTo()` functions will take output arguments before
+ * input arguments. Some of these functions might return a value to indicate
+ * success or error.
+ *
+ * In converting or wrapping something as a Treble type that contains a
+ * `hidl_handle`, `native_handle_t*` will need to be created and returned as
+ * an additional output argument, hence only `wrapIn()` or `convertTo()` would
+ * be available. The caller must call `native_handle_delete()` to deallocate the
+ * returned native handle when it is no longer needed.
+ *
+ * For types that contain file descriptors, `inTargetType()` and `wrapAs()` do
+ * not perform duplication of file descriptors, while `toTargetType()` and
+ * `convertTo()` do.
+ */
+
+/**
+ * \brief Convert `Return<void>` to `binder::Status`.
+ *
+ * \param[in] t The source `Return<void>`.
+ * \return The corresponding `binder::Status`.
+ */
+// convert: Return<void> -> ::android::binder::Status
+inline ::android::binder::Status toBinderStatus(
+        Return<void> const& t) {
+    return ::android::binder::Status::fromExceptionCode(
+            t.isOk() ? OK : UNKNOWN_ERROR,
+            t.description().c_str());
+}
+
+/**
+ * \brief Convert `Return<Status>` to `binder::Status`.
+ *
+ * \param[in] t The source `Return<Status>`.
+ * \return The corresponding `binder::Status`.
+ */
+// convert: Return<Status> -> ::android::binder::Status
+inline ::android::binder::Status toBinderStatus(
+        Return<Status> const& t) {
+    return ::android::binder::Status::fromStatusT(
+            t.isOk() ? static_cast<status_t>(static_cast<Status>(t)) : UNKNOWN_ERROR);
+}
+
+/**
+ * \brief Convert `Return<Status>` to `status_t`. This is for legacy binder
+ * calls.
+ *
+ * \param[in] t The source `Return<Status>`.
+ * \return The corresponding `status_t`.
+ *
+ * This function first check if \p t has a transport error. If it does, then the
+ * return value is the transport error code. Otherwise, the return value is
+ * converted from `Status` contained inside \p t.
+ *
+ * Note:
+ * - This `Status` is omx-specific. It is defined in `types.hal`.
+ * - The name of this function is not `convert`.
+ */
+// convert: Status -> status_t
+inline status_t toStatusT(Return<Status> const& t) {
+    return t.isOk() ? static_cast<status_t>(static_cast<Status>(t)) : UNKNOWN_ERROR;
+}
+
+/**
+ * \brief Convert `Return<void>` to `status_t`. This is for legacy binder calls.
+ *
+ * \param[in] t The source `Return<void>`.
+ * \return The corresponding `status_t`.
+ */
+// convert: Return<void> -> status_t
+inline status_t toStatusT(Return<void> const& t) {
+    return t.isOk() ? OK : UNKNOWN_ERROR;
+}
+
+/**
+ * \brief Convert `Status` to `status_t`. This is for legacy binder calls.
+ *
+ * \param[in] t The source `Status`.
+ * \return the corresponding `status_t`.
+ */
+// convert: Status -> status_t
+inline status_t toStatusT(Status const& t) {
+    return static_cast<status_t>(t);
+}
+
+/**
+ * \brief Convert `status_t` to `Status`.
+ *
+ * \param[in] l The source `status_t`.
+ * \return The corresponding `Status`.
+ */
+// convert: status_t -> Status
+inline Status toStatus(status_t l) {
+    return static_cast<Status>(l);
+}
+
+/**
+ * \brief Wrap `native_handle_t*` in `hidl_handle`.
+ *
+ * \param[in] nh The source `native_handle_t*`.
+ * \return The `hidl_handle` that points to \p nh.
+ */
+// wrap: native_handle_t* -> hidl_handle
+inline hidl_handle inHidlHandle(native_handle_t const* nh) {
+    return hidl_handle(nh);
+}
+
+/**
+ * \brief Wrap an `omx_message` and construct the corresponding `Message`.
+ *
+ * \param[out] t The wrapper of type `Message`.
+ * \param[out] nh The native_handle_t referred to by `t->fence`.
+ * \param[in] l The source `omx_message`.
+ * \return `true` if the wrapping is successful; `false` otherwise.
+ *
+ * Upon success, \p nh will be created to hold the file descriptor stored in
+ * `l.fenceFd`, and `t->fence` will point to \p nh. \p nh will need to be
+ * destroyed manually by `native_handle_delete()` when \p t is no longer needed.
+ *
+ * Upon failure, \p nh will not be created and will not need to be deleted. \p t
+ * will be invalid.
+ */
+// wrap, omx_message -> Message, native_handle_t*
+inline bool wrapAs(Message* t, native_handle_t** nh, omx_message const& l) {
+    *nh = native_handle_create_from_fd(l.fenceFd);
+    if (!*nh) {
+        return false;
+    }
+    t->fence = *nh;
+    switch (l.type) {
+        case omx_message::EVENT:
+            t->type = Message::Type::EVENT;
+            t->data.eventData.event = uint32_t(l.u.event_data.event);
+            t->data.eventData.data1 = l.u.event_data.data1;
+            t->data.eventData.data2 = l.u.event_data.data2;
+            t->data.eventData.data3 = l.u.event_data.data3;
+            t->data.eventData.data4 = l.u.event_data.data4;
+            break;
+        case omx_message::EMPTY_BUFFER_DONE:
+            t->type = Message::Type::EMPTY_BUFFER_DONE;
+            t->data.bufferData.buffer = l.u.buffer_data.buffer;
+            break;
+        case omx_message::FILL_BUFFER_DONE:
+            t->type = Message::Type::FILL_BUFFER_DONE;
+            t->data.extendedBufferData.buffer = l.u.extended_buffer_data.buffer;
+            t->data.extendedBufferData.rangeOffset =
+                    l.u.extended_buffer_data.range_offset;
+            t->data.extendedBufferData.rangeLength =
+                    l.u.extended_buffer_data.range_length;
+            t->data.extendedBufferData.flags = l.u.extended_buffer_data.flags;
+            t->data.extendedBufferData.timestampUs =
+                    l.u.extended_buffer_data.timestamp;
+            break;
+        case omx_message::FRAME_RENDERED:
+            t->type = Message::Type::FRAME_RENDERED;
+            t->data.renderData.timestampUs = l.u.render_data.timestamp;
+            t->data.renderData.systemTimeNs = l.u.render_data.nanoTime;
+            break;
+        default:
+            native_handle_delete(*nh);
+            return false;
+    }
+    return true;
+}
+
+/**
+ * \brief Wrap a `Message` inside an `omx_message`.
+ *
+ * \param[out] l The wrapper of type `omx_message`.
+ * \param[in] t The source `Message`.
+ * \return `true` if the wrapping is successful; `false` otherwise.
+ */
+// wrap: Message -> omx_message
+inline bool wrapAs(omx_message* l, Message const& t) {
+    l->fenceFd = native_handle_read_fd(t.fence);
+    switch (t.type) {
+        case Message::Type::EVENT:
+            l->type = omx_message::EVENT;
+            l->u.event_data.event = OMX_EVENTTYPE(t.data.eventData.event);
+            l->u.event_data.data1 = t.data.eventData.data1;
+            l->u.event_data.data2 = t.data.eventData.data2;
+            l->u.event_data.data3 = t.data.eventData.data3;
+            l->u.event_data.data4 = t.data.eventData.data4;
+            break;
+        case Message::Type::EMPTY_BUFFER_DONE:
+            l->type = omx_message::EMPTY_BUFFER_DONE;
+            l->u.buffer_data.buffer = t.data.bufferData.buffer;
+            break;
+        case Message::Type::FILL_BUFFER_DONE:
+            l->type = omx_message::FILL_BUFFER_DONE;
+            l->u.extended_buffer_data.buffer = t.data.extendedBufferData.buffer;
+            l->u.extended_buffer_data.range_offset =
+                    t.data.extendedBufferData.rangeOffset;
+            l->u.extended_buffer_data.range_length =
+                    t.data.extendedBufferData.rangeLength;
+            l->u.extended_buffer_data.flags = t.data.extendedBufferData.flags;
+            l->u.extended_buffer_data.timestamp =
+                    t.data.extendedBufferData.timestampUs;
+            break;
+        case Message::Type::FRAME_RENDERED:
+            l->type = omx_message::FRAME_RENDERED;
+            l->u.render_data.timestamp = t.data.renderData.timestampUs;
+            l->u.render_data.nanoTime = t.data.renderData.systemTimeNs;
+            break;
+        default:
+            return false;
+    }
+    return true;
+}
+
+/**
+ * \brief Similar to `wrapTo(omx_message*, Message const&)`, but the output will
+ * have an extended lifetime.
+ *
+ * \param[out] l The output `omx_message`.
+ * \param[in] t The source `Message`.
+ * \return `true` if the conversion is successful; `false` otherwise.
+ *
+ * This function calls `wrapto()`, then attempts to duplicate the file
+ * descriptor for the fence if it is not `-1`. If duplication fails, `false`
+ * will be returned.
+ */
+// convert: Message -> omx_message
+inline bool convertTo(omx_message* l, Message const& t) {
+    if (!wrapAs(l, t)) {
+        return false;
+    }
+    if (l->fenceFd == -1) {
+        return true;
+    }
+    l->fenceFd = dup(l->fenceFd);
+    return l->fenceFd != -1;
+}
+
+/**
+ * \brief Wrap an `OMXFenceParcelable` inside a `hidl_handle`.
+ *
+ * \param[out] t The wrapper of type `hidl_handle`.
+ * \param[out] nh The native handle created to hold the file descriptor inside
+ * \p l.
+ * \param[in] l The source `OMXFenceParcelable`, which essentially contains one
+ * file descriptor.
+ * \return `true` if \p t and \p nh are successfully created to wrap around \p
+ * l; `false` otherwise.
+ *
+ * On success, \p nh needs to be deleted by the caller with
+ * `native_handle_delete()` after \p t and \p nh are no longer needed.
+ *
+ * On failure, \p nh will not need to be deleted, and \p t will hold an invalid
+ * value.
+ */
+// wrap: OMXFenceParcelable -> hidl_handle, native_handle_t*
+inline bool wrapAs(hidl_handle* t, native_handle_t** nh,
+        OMXFenceParcelable const& l) {
+    *nh = native_handle_create_from_fd(l.get());
+    if (!*nh) {
+        return false;
+    }
+    *t = *nh;
+    return true;
+}
+
+/**
+ * \brief Wrap a `hidl_handle` inside an `OMXFenceParcelable`.
+ *
+ * \param[out] l The wrapper of type `OMXFenceParcelable`.
+ * \param[in] t The source `hidl_handle`.
+ */
+// wrap: hidl_handle -> OMXFenceParcelable
+inline void wrapAs(OMXFenceParcelable* l, hidl_handle const& t) {
+    l->mFenceFd = native_handle_read_fd(t);
+}
+
+/**
+ * \brief Convert a `hidl_handle` to `OMXFenceParcelable`. If `hidl_handle`
+ * contains file descriptors, the first file descriptor will be duplicated and
+ * stored in the output `OMXFenceParcelable`.
+ *
+ * \param[out] l The output `OMXFenceParcelable`.
+ * \param[in] t The input `hidl_handle`.
+ * \return `false` if \p t contains a valid file descriptor but duplication
+ * fails; `true` otherwise.
+ */
+// convert: hidl_handle -> OMXFenceParcelable
+inline bool convertTo(OMXFenceParcelable* l, hidl_handle const& t) {
+    int fd = native_handle_read_fd(t);
+    if (fd != -1) {
+        fd = dup(fd);
+        if (fd == -1) {
+            return false;
+        }
+    }
+    l->mFenceFd = fd;
+    return true;
+}
+
+/**
+ * \brief Convert `::android::ColorAspects` to `ColorAspects`.
+ *
+ * \param[in] l The source `::android::ColorAspects`.
+ * \return The corresponding `ColorAspects`.
+ */
+// convert: ::android::ColorAspects -> ColorAspects
+inline ColorAspects toHardwareColorAspects(::android::ColorAspects const& l) {
+    return ColorAspects{
+            static_cast<ColorAspects::Range>(l.mRange),
+            static_cast<ColorAspects::Primaries>(l.mPrimaries),
+            static_cast<ColorAspects::Transfer>(l.mTransfer),
+            static_cast<ColorAspects::MatrixCoeffs>(l.mMatrixCoeffs)};
+}
+
+/**
+ * \brief Convert `int32_t` to `ColorAspects`.
+ *
+ * \param[in] l The source `int32_t`.
+ * \return The corresponding `ColorAspects`.
+ */
+// convert: int32_t -> ColorAspects
+inline ColorAspects toHardwareColorAspects(int32_t l) {
+    return ColorAspects{
+            static_cast<ColorAspects::Range>((l >> 24) & 0xFF),
+            static_cast<ColorAspects::Primaries>((l >> 16) & 0xFF),
+            static_cast<ColorAspects::Transfer>(l & 0xFF),
+            static_cast<ColorAspects::MatrixCoeffs>((l >> 8) & 0xFF)};
+}
+
+/**
+ * \brief Convert `ColorAspects` to `::android::ColorAspects`.
+ *
+ * \param[in] t The source `ColorAspects`.
+ * \return The corresponding `::android::ColorAspects`.
+ */
+// convert: ColorAspects -> ::android::ColorAspects
+inline int32_t toCompactColorAspects(ColorAspects const& t) {
+    return static_cast<int32_t>(
+            (static_cast<uint32_t>(t.range) << 24) |
+            (static_cast<uint32_t>(t.primaries) << 16) |
+            (static_cast<uint32_t>(t.transfer)) |
+            (static_cast<uint32_t>(t.matrixCoeffs) << 8));
+}
+
+/**
+ * \brief Convert `int32_t` to `Dataspace`.
+ *
+ * \param[in] l The source `int32_t`.
+ * \result The corresponding `Dataspace`.
+ */
+// convert: int32_t -> Dataspace
+inline Dataspace toHardwareDataspace(int32_t l) {
+    return static_cast<Dataspace>(l);
+}
+
+/**
+ * \brief Convert `Dataspace` to `int32_t`.
+ *
+ * \param[in] t The source `Dataspace`.
+ * \result The corresponding `int32_t`.
+ */
+// convert: Dataspace -> int32_t
+inline int32_t toRawDataspace(Dataspace const& t) {
+    return static_cast<int32_t>(t);
+}
+
+/**
+ * \brief Wrap an opaque buffer inside a `hidl_vec<uint8_t>`.
+ *
+ * \param[in] l The pointer to the beginning of the opaque buffer.
+ * \param[in] size The size of the buffer.
+ * \return A `hidl_vec<uint8_t>` that points to the buffer.
+ */
+// wrap: void*, size_t -> hidl_vec<uint8_t>
+inline hidl_vec<uint8_t> inHidlBytes(void const* l, size_t size) {
+    hidl_vec<uint8_t> t;
+    t.setToExternal(static_cast<uint8_t*>(const_cast<void*>(l)), size, false);
+    return t;
+}
+
+/**
+ * \brief Create a `hidl_vec<uint8_t>` that is a copy of an opaque buffer.
+ *
+ * \param[in] l The pointer to the beginning of the opaque buffer.
+ * \param[in] size The size of the buffer.
+ * \return A `hidl_vec<uint8_t>` that is a copy of the input buffer.
+ */
+// convert: void*, size_t -> hidl_vec<uint8_t>
+inline hidl_vec<uint8_t> toHidlBytes(void const* l, size_t size) {
+    hidl_vec<uint8_t> t;
+    t.resize(size);
+    uint8_t const* src = static_cast<uint8_t const*>(l);
+    std::copy(src, src + size, t.data());
+    return t;
+}
+
+/**
+ * \brief Wrap `GraphicBuffer` in `AnwBuffer`.
+ *
+ * \param[out] t The wrapper of type `AnwBuffer`.
+ * \param[in] l The source `GraphicBuffer`.
+ */
+// wrap: GraphicBuffer -> AnwBuffer
+inline void wrapAs(AnwBuffer* t, GraphicBuffer const& l) {
+    t->attr.width = l.getWidth();
+    t->attr.height = l.getHeight();
+    t->attr.stride = l.getStride();
+    t->attr.format = static_cast<PixelFormat>(l.getPixelFormat());
+    t->attr.layerCount = l.getLayerCount();
+    t->attr.usage = l.getUsage();
+    t->attr.id = l.getId();
+    t->attr.generationNumber = l.getGenerationNumber();
+    t->nativeHandle = hidl_handle(l.handle);
+}
+
+/**
+ * \brief Convert `AnwBuffer` to `GraphicBuffer`.
+ *
+ * \param[out] l The destination `GraphicBuffer`.
+ * \param[in] t The source `AnwBuffer`.
+ *
+ * This function will duplicate all file descriptors in \p t.
+ */
+// convert: AnwBuffer -> GraphicBuffer
+// Ref: frameworks/native/libs/ui/GraphicBuffer.cpp: GraphicBuffer::flatten
+inline bool convertTo(GraphicBuffer* l, AnwBuffer const& t) {
+    native_handle_t* handle = t.nativeHandle == nullptr ?
+            nullptr : native_handle_clone(t.nativeHandle);
+
+    size_t const numInts = 12 + (handle ? handle->numInts : 0);
+    int32_t* ints = new int32_t[numInts];
+
+    size_t numFds = static_cast<size_t>(handle ? handle->numFds : 0);
+    int* fds = new int[numFds];
+
+    ints[0] = 'GBFR';
+    ints[1] = static_cast<int32_t>(t.attr.width);
+    ints[2] = static_cast<int32_t>(t.attr.height);
+    ints[3] = static_cast<int32_t>(t.attr.stride);
+    ints[4] = static_cast<int32_t>(t.attr.format);
+    ints[5] = static_cast<int32_t>(t.attr.layerCount);
+    ints[6] = static_cast<int32_t>(t.attr.usage);
+    ints[7] = static_cast<int32_t>(t.attr.id >> 32);
+    ints[8] = static_cast<int32_t>(t.attr.id & 0xFFFFFFFF);
+    ints[9] = static_cast<int32_t>(t.attr.generationNumber);
+    ints[10] = 0;
+    ints[11] = 0;
+    if (handle) {
+        ints[10] = static_cast<int32_t>(handle->numFds);
+        ints[11] = static_cast<int32_t>(handle->numInts);
+        int* intsStart = handle->data + handle->numFds;
+        std::copy(handle->data, intsStart, fds);
+        std::copy(intsStart, intsStart + handle->numInts, &ints[12]);
+    }
+
+    void const* constBuffer = static_cast<void const*>(ints);
+    size_t size = numInts * sizeof(int32_t);
+    int const* constFds = static_cast<int const*>(fds);
+    status_t status = l->unflatten(constBuffer, size, constFds, numFds);
+
+    delete [] fds;
+    delete [] ints;
+    native_handle_delete(handle);
+    return status == NO_ERROR;
+}
+
+/**
+ * \brief Wrap `OMXBuffer` in `CodecBuffer`.
+ *
+ * \param[out] t The wrapper of type `CodecBuffer`.
+ * \param[in] l The source `OMXBuffer`.
+ * \return `true` if the wrapping is successful; `false` otherwise.
+ */
+// wrap: OMXBuffer -> CodecBuffer
+inline bool wrapAs(CodecBuffer* t, OMXBuffer const& l) {
+    t->sharedMemory = hidl_memory();
+    t->nativeHandle = hidl_handle();
+    switch (l.mBufferType) {
+        case OMXBuffer::kBufferTypeInvalid: {
+            t->type = CodecBuffer::Type::INVALID;
+            return true;
+        }
+        case OMXBuffer::kBufferTypePreset: {
+            t->type = CodecBuffer::Type::PRESET;
+            t->attr.preset.rangeLength = static_cast<uint32_t>(l.mRangeLength);
+            t->attr.preset.rangeOffset = static_cast<uint32_t>(l.mRangeOffset);
+            return true;
+        }
+        case OMXBuffer::kBufferTypeHidlMemory: {
+            t->type = CodecBuffer::Type::SHARED_MEM;
+            t->sharedMemory = l.mHidlMemory;
+            return true;
+        }
+        case OMXBuffer::kBufferTypeSharedMem: {
+            // This is not supported.
+            return false;
+        }
+        case OMXBuffer::kBufferTypeANWBuffer: {
+            t->type = CodecBuffer::Type::ANW_BUFFER;
+            if (l.mGraphicBuffer == nullptr) {
+                t->attr.anwBuffer.width = 0;
+                t->attr.anwBuffer.height = 0;
+                t->attr.anwBuffer.stride = 0;
+                t->attr.anwBuffer.format = static_cast<PixelFormat>(1);
+                t->attr.anwBuffer.layerCount = 0;
+                t->attr.anwBuffer.usage = 0;
+                return true;
+            }
+            t->attr.anwBuffer.width = l.mGraphicBuffer->getWidth();
+            t->attr.anwBuffer.height = l.mGraphicBuffer->getHeight();
+            t->attr.anwBuffer.stride = l.mGraphicBuffer->getStride();
+            t->attr.anwBuffer.format = static_cast<PixelFormat>(
+                    l.mGraphicBuffer->getPixelFormat());
+            t->attr.anwBuffer.layerCount = l.mGraphicBuffer->getLayerCount();
+            t->attr.anwBuffer.usage = l.mGraphicBuffer->getUsage();
+            t->nativeHandle = l.mGraphicBuffer->handle;
+            return true;
+        }
+        case OMXBuffer::kBufferTypeNativeHandle: {
+            t->type = CodecBuffer::Type::NATIVE_HANDLE;
+            t->nativeHandle = l.mNativeHandle->handle();
+            return true;
+        }
+    }
+    return false;
+}
+
+/**
+ * \brief Convert `CodecBuffer` to `OMXBuffer`.
+ *
+ * \param[out] l The destination `OMXBuffer`.
+ * \param[in] t The source `CodecBuffer`.
+ * \return `true` if successful; `false` otherwise.
+ */
+// convert: CodecBuffer -> OMXBuffer
+inline bool convertTo(OMXBuffer* l, CodecBuffer const& t) {
+    switch (t.type) {
+        case CodecBuffer::Type::INVALID: {
+            *l = OMXBuffer();
+            return true;
+        }
+        case CodecBuffer::Type::PRESET: {
+            *l = OMXBuffer(
+                    t.attr.preset.rangeOffset,
+                    t.attr.preset.rangeLength);
+            return true;
+        }
+        case CodecBuffer::Type::SHARED_MEM: {
+            *l = OMXBuffer(t.sharedMemory);
+            return true;
+        }
+        case CodecBuffer::Type::ANW_BUFFER: {
+            if (t.nativeHandle.getNativeHandle() == nullptr) {
+                *l = OMXBuffer(sp<GraphicBuffer>(nullptr));
+                return true;
+            }
+            AnwBuffer anwBuffer;
+            anwBuffer.nativeHandle = t.nativeHandle;
+            anwBuffer.attr = t.attr.anwBuffer;
+            sp<GraphicBuffer> graphicBuffer = new GraphicBuffer();
+            if (!convertTo(graphicBuffer.get(), anwBuffer)) {
+                return false;
+            }
+            *l = OMXBuffer(graphicBuffer);
+            return true;
+        }
+        case CodecBuffer::Type::NATIVE_HANDLE: {
+            *l = OMXBuffer(NativeHandle::create(
+                    native_handle_clone(t.nativeHandle), true));
+            return true;
+        }
+    }
+    return false;
+}
+
+/**
+ * \brief Convert `IOMX::ComponentInfo` to `IOmx::ComponentInfo`.
+ *
+ * \param[out] t The destination `IOmx::ComponentInfo`.
+ * \param[in] l The source `IOMX::ComponentInfo`.
+ */
+// convert: IOMX::ComponentInfo -> IOmx::ComponentInfo
+inline bool convertTo(IOmx::ComponentInfo* t, IOMX::ComponentInfo const& l) {
+    t->mName = l.mName.string();
+    t->mRoles.resize(l.mRoles.size());
+    size_t i = 0;
+    for (auto& role : l.mRoles) {
+        t->mRoles[i++] = role.string();
+    }
+    return true;
+}
+
+/**
+ * \brief Convert `IOmx::ComponentInfo` to `IOMX::ComponentInfo`.
+ *
+ * \param[out] l The destination `IOMX::ComponentInfo`.
+ * \param[in] t The source `IOmx::ComponentInfo`.
+ */
+// convert: IOmx::ComponentInfo -> IOMX::ComponentInfo
+inline bool convertTo(IOMX::ComponentInfo* l, IOmx::ComponentInfo const& t) {
+    l->mName = t.mName.c_str();
+    l->mRoles.clear();
+    for (size_t i = 0; i < t.mRoles.size(); ++i) {
+        l->mRoles.push_back(String8(t.mRoles[i].c_str()));
+    }
+    return true;
+}
+
+/**
+ * \brief Convert `OMX_BOOL` to `bool`.
+ *
+ * \param[in] l The source `OMX_BOOL`.
+ * \return The destination `bool`.
+ */
+// convert: OMX_BOOL -> bool
+inline bool toRawBool(OMX_BOOL l) {
+    return l == OMX_FALSE ? false : true;
+}
+
+/**
+ * \brief Convert `bool` to `OMX_BOOL`.
+ *
+ * \param[in] t The source `bool`.
+ * \return The destination `OMX_BOOL`.
+ */
+// convert: bool -> OMX_BOOL
+inline OMX_BOOL toEnumBool(bool t) {
+    return t ? OMX_TRUE : OMX_FALSE;
+}
+
+/**
+ * \brief Convert `OMX_COMMANDTYPE` to `uint32_t`.
+ *
+ * \param[in] l The source `OMX_COMMANDTYPE`.
+ * \return The underlying value of type `uint32_t`.
+ *
+ * `OMX_COMMANDTYPE` is an enum type whose underlying type is `uint32_t`.
+ */
+// convert: OMX_COMMANDTYPE -> uint32_t
+inline uint32_t toRawCommandType(OMX_COMMANDTYPE l) {
+    return static_cast<uint32_t>(l);
+}
+
+/**
+ * \brief Convert `uint32_t` to `OMX_COMMANDTYPE`.
+ *
+ * \param[in] t The source `uint32_t`.
+ * \return The corresponding enum value of type `OMX_COMMANDTYPE`.
+ *
+ * `OMX_COMMANDTYPE` is an enum type whose underlying type is `uint32_t`.
+ */
+// convert: uint32_t -> OMX_COMMANDTYPE
+inline OMX_COMMANDTYPE toEnumCommandType(uint32_t t) {
+    return static_cast<OMX_COMMANDTYPE>(t);
+}
+
+/**
+ * \brief Convert `OMX_INDEXTYPE` to `uint32_t`.
+ *
+ * \param[in] l The source `OMX_INDEXTYPE`.
+ * \return The underlying value of type `uint32_t`.
+ *
+ * `OMX_INDEXTYPE` is an enum type whose underlying type is `uint32_t`.
+ */
+// convert: OMX_INDEXTYPE -> uint32_t
+inline uint32_t toRawIndexType(OMX_INDEXTYPE l) {
+    return static_cast<uint32_t>(l);
+}
+
+/**
+ * \brief Convert `uint32_t` to `OMX_INDEXTYPE`.
+ *
+ * \param[in] t The source `uint32_t`.
+ * \return The corresponding enum value of type `OMX_INDEXTYPE`.
+ *
+ * `OMX_INDEXTYPE` is an enum type whose underlying type is `uint32_t`.
+ */
+// convert: uint32_t -> OMX_INDEXTYPE
+inline OMX_INDEXTYPE toEnumIndexType(uint32_t t) {
+    return static_cast<OMX_INDEXTYPE>(t);
+}
+
+/**
+ * \brief Convert `IOMX::PortMode` to `PortMode`.
+ *
+ * \param[in] l The source `IOMX::PortMode`.
+ * \return The destination `PortMode`.
+ */
+// convert: IOMX::PortMode -> PortMode
+inline PortMode toHardwarePortMode(IOMX::PortMode l) {
+    return static_cast<PortMode>(l);
+}
+
+/**
+ * \brief Convert `PortMode` to `IOMX::PortMode`.
+ *
+ * \param[in] t The source `PortMode`.
+ * \return The destination `IOMX::PortMode`.
+ */
+// convert: PortMode -> IOMX::PortMode
+inline IOMX::PortMode toIOMXPortMode(PortMode t) {
+    return static_cast<IOMX::PortMode>(t);
+}
+
+/**
+ * \brief Convert `OMX_TICKS` to `uint64_t`.
+ *
+ * \param[in] l The source `OMX_TICKS`.
+ * \return The destination `uint64_t`.
+ */
+// convert: OMX_TICKS -> uint64_t
+inline uint64_t toRawTicks(OMX_TICKS l) {
+#ifndef OMX_SKIP64BIT
+    return static_cast<uint64_t>(l);
+#else
+    return static_cast<uint64_t>(l.nLowPart) |
+            static_cast<uint64_t>(l.nHighPart << 32);
+#endif
+}
+
+/**
+ * \brief Convert `uint64_t` to `OMX_TICKS`.
+ *
+ * \param[in] l The source `uint64_t`.
+ * \return The destination `OMX_TICKS`.
+ */
+// convert: uint64_t -> OMX_TICKS
+inline OMX_TICKS toOMXTicks(uint64_t t) {
+#ifndef OMX_SKIP64BIT
+    return static_cast<OMX_TICKS>(t);
+#else
+    return OMX_TICKS{
+            static_cast<uint32_t>(t & 0xFFFFFFFF),
+            static_cast<uint32_t>(t >> 32)};
+#endif
+}
+
+/**
+ * Conversion functions for types outside media
+ * ============================================
+ *
+ * Some objects in libui and libgui that were made to go through binder calls do
+ * not expose ways to read or write their fields to the public. To pass an
+ * object of this kind through the HIDL boundary, translation functions need to
+ * work around the access restriction by using the publicly available
+ * `flatten()` and `unflatten()` functions.
+ *
+ * All `flatten()` and `unflatten()` overloads follow the same convention as
+ * follows:
+ *
+ *     status_t flatten(ObjectType const& object,
+ *                      [OtherType const& other, ...]
+ *                      void*& buffer, size_t& size,
+ *                      int*& fds, size_t& numFds)
+ *
+ *     status_t unflatten(ObjectType* object,
+ *                        [OtherType* other, ...,]
+ *                        void*& buffer, size_t& size,
+ *                        int*& fds, size_t& numFds)
+ *
+ * The number of `other` parameters varies depending on the `ObjectType`. For
+ * example, in the process of unflattening an object that contains
+ * `hidl_handle`, `other` is needed to hold `native_handle_t` objects that will
+ * be created.
+ *
+ * The last four parameters always work the same way in all overloads of
+ * `flatten()` and `unflatten()`:
+ * - For `flatten()`, `buffer` is the pointer to the non-fd buffer to be filled,
+ *   `size` is the size (in bytes) of the non-fd buffer pointed to by `buffer`,
+ *   `fds` is the pointer to the fd buffer to be filled, and `numFds` is the
+ *   size (in ints) of the fd buffer pointed to by `fds`.
+ * - For `unflatten()`, `buffer` is the pointer to the non-fd buffer to be read
+ *   from, `size` is the size (in bytes) of the non-fd buffer pointed to by
+ *   `buffer`, `fds` is the pointer to the fd buffer to be read from, and
+ *   `numFds` is the size (in ints) of the fd buffer pointed to by `fds`.
+ * - After a successful call to `flatten()` or `unflatten()`, `buffer` and `fds`
+ *   will be advanced, while `size` and `numFds` will be decreased to reflect
+ *   how much storage/data of the two buffers (fd and non-fd) have been used.
+ * - After an unsuccessful call, the values of `buffer`, `size`, `fds` and
+ *   `numFds` are invalid.
+ *
+ * The return value of a successful `flatten()` or `unflatten()` call will be
+ * `OK` (also aliased as `NO_ERROR`). Any other values indicate a failure.
+ *
+ * For each object type that supports flattening, there will be two accompanying
+ * functions: `getFlattenedSize()` and `getFdCount()`. `getFlattenedSize()` will
+ * return the size of the non-fd buffer that the object will need for
+ * flattening. `getFdCount()` will return the size of the fd buffer that the
+ * object will need for flattening.
+ *
+ * The set of these four functions, `getFlattenedSize()`, `getFdCount()`,
+ * `flatten()` and `unflatten()`, are similar to functions of the same name in
+ * the abstract class `Flattenable`. The only difference is that functions in
+ * this file are not member functions of the object type. For example, we write
+ *
+ *     flatten(x, buffer, size, fds, numFds)
+ *
+ * instead of
+ *
+ *     x.flatten(buffer, size, fds, numFds)
+ *
+ * because we cannot modify the type of `x`.
+ *
+ * There is one exception to the naming convention: `hidl_handle` that
+ * represents a fence. The four functions for this "Fence" type have the word
+ * "Fence" attched to their names because the object type, which is
+ * `hidl_handle`, does not carry the special meaning that the object itself can
+ * only contain zero or one file descriptor.
+ */
+
+// Ref: frameworks/native/libs/ui/Fence.cpp
+
+/**
+ * \brief Return the size of the non-fd buffer required to flatten a fence.
+ *
+ * \param[in] fence The input fence of type `hidl_handle`.
+ * \return The required size of the flat buffer.
+ *
+ * The current version of this function always returns 4, which is the number of
+ * bytes required to store the number of file descriptors contained in the fd
+ * part of the flat buffer.
+ */
+inline size_t getFenceFlattenedSize(hidl_handle const& /* fence */) {
+    return 4;
+};
+
+/**
+ * \brief Return the number of file descriptors contained in a fence.
+ *
+ * \param[in] fence The input fence of type `hidl_handle`.
+ * \return `0` if \p fence does not contain a valid file descriptor, or `1`
+ * otherwise.
+ */
+inline size_t getFenceFdCount(hidl_handle const& fence) {
+    return native_handle_read_fd(fence) == -1 ? 0 : 1;
+}
+
+/**
+ * \brief Unflatten `Fence` to `hidl_handle`.
+ *
+ * \param[out] fence The destination `hidl_handle`.
+ * \param[out] nh The underlying native handle.
+ * \param[in,out] buffer The pointer to the flat non-fd buffer.
+ * \param[in,out] size The size of the flat non-fd buffer.
+ * \param[in,out] fds The pointer to the flat fd buffer.
+ * \param[in,out] numFds The size of the flat fd buffer.
+ * \return `NO_ERROR` on success; other value on failure.
+ *
+ * If the return value is `NO_ERROR`, \p nh will point to a newly created
+ * native handle, which needs to be deleted with `native_handle_delete()`
+ * afterwards.
+ */
+inline status_t unflattenFence(hidl_handle* fence, native_handle_t** nh,
+        void const*& buffer, size_t& size, int const*& fds, size_t& numFds) {
+    if (size < 4) {
+        return NO_MEMORY;
+    }
+
+    uint32_t numFdsInHandle;
+    FlattenableUtils::read(buffer, size, numFdsInHandle);
+
+    if (numFdsInHandle > 1) {
+        return BAD_VALUE;
+    }
+
+    if (numFds < numFdsInHandle) {
+        return NO_MEMORY;
+    }
+
+    if (numFdsInHandle) {
+        *nh = native_handle_create_from_fd(*fds);
+        if (*nh == nullptr) {
+            return NO_MEMORY;
+        }
+        *fence = *nh;
+        ++fds;
+        --numFds;
+    } else {
+        *nh = nullptr;
+        *fence = hidl_handle();
+    }
+
+    return NO_ERROR;
+}
+
+/**
+ * \brief Flatten `hidl_handle` as `Fence`.
+ *
+ * \param[in] t The source `hidl_handle`.
+ * \param[in,out] buffer The pointer to the flat non-fd buffer.
+ * \param[in,out] size The size of the flat non-fd buffer.
+ * \param[in,out] fds The pointer to the flat fd buffer.
+ * \param[in,out] numFds The size of the flat fd buffer.
+ * \return `NO_ERROR` on success; other value on failure.
+ */
+inline status_t flattenFence(hidl_handle const& fence,
+        void*& buffer, size_t& size, int*& fds, size_t& numFds) {
+    if (size < getFenceFlattenedSize(fence) ||
+            numFds < getFenceFdCount(fence)) {
+        return NO_MEMORY;
+    }
+    // Cast to uint32_t since the size of a size_t can vary between 32- and
+    // 64-bit processes
+    FlattenableUtils::write(buffer, size,
+            static_cast<uint32_t>(getFenceFdCount(fence)));
+    int fd = native_handle_read_fd(fence);
+    if (fd != -1) {
+        *fds = fd;
+        ++fds;
+        --numFds;
+    }
+    return NO_ERROR;
+}
+
+/**
+ * \brief Wrap `Fence` in `hidl_handle`.
+ *
+ * \param[out] t The wrapper of type `hidl_handle`.
+ * \param[out] nh The native handle pointed to by \p t.
+ * \param[in] l The source `Fence`.
+ *
+ * On success, \p nh will hold a newly created native handle, which must be
+ * deleted manually with `native_handle_delete()` afterwards.
+ */
+// wrap: Fence -> hidl_handle
+inline bool wrapAs(hidl_handle* t, native_handle_t** nh, Fence const& l) {
+    size_t const baseSize = l.getFlattenedSize();
+    std::unique_ptr<uint8_t[]> baseBuffer(
+            new (std::nothrow) uint8_t[baseSize]);
+    if (!baseBuffer) {
+        return false;
+    }
+
+    size_t const baseNumFds = l.getFdCount();
+    std::unique_ptr<int[]> baseFds(
+            new (std::nothrow) int[baseNumFds]);
+    if (!baseFds) {
+        return false;
+    }
+
+    void* buffer = static_cast<void*>(baseBuffer.get());
+    size_t size = baseSize;
+    int* fds = static_cast<int*>(baseFds.get());
+    size_t numFds = baseNumFds;
+    if (l.flatten(buffer, size, fds, numFds) != NO_ERROR) {
+        return false;
+    }
+
+    void const* constBuffer = static_cast<void const*>(baseBuffer.get());
+    size = baseSize;
+    int const* constFds = static_cast<int const*>(baseFds.get());
+    numFds = baseNumFds;
+    if (unflattenFence(t, nh, constBuffer, size, constFds, numFds)
+            != NO_ERROR) {
+        return false;
+    }
+
+    return true;
+}
+
+/**
+ * \brief Convert `hidl_handle` to `Fence`.
+ *
+ * \param[out] l The destination `Fence`. `l` must not have been used
+ * (`l->isValid()` must return `false`) before this function is called.
+ * \param[in] t The source `hidl_handle`.
+ *
+ * If \p t contains a valid file descriptor, it will be duplicated.
+ */
+// convert: hidl_handle -> Fence
+inline bool convertTo(Fence* l, hidl_handle const& t) {
+    int fd = native_handle_read_fd(t);
+    if (fd != -1) {
+        fd = dup(fd);
+        if (fd == -1) {
+            return false;
+        }
+    }
+    native_handle_t* nh = native_handle_create_from_fd(fd);
+    if (nh == nullptr) {
+        if (fd != -1) {
+            close(fd);
+        }
+        return false;
+    }
+
+    size_t const baseSize = getFenceFlattenedSize(t);
+    std::unique_ptr<uint8_t[]> baseBuffer(
+            new (std::nothrow) uint8_t[baseSize]);
+    if (!baseBuffer) {
+        native_handle_delete(nh);
+        return false;
+    }
+
+    size_t const baseNumFds = getFenceFdCount(t);
+    std::unique_ptr<int[]> baseFds(
+            new (std::nothrow) int[baseNumFds]);
+    if (!baseFds) {
+        native_handle_delete(nh);
+        return false;
+    }
+
+    void* buffer = static_cast<void*>(baseBuffer.get());
+    size_t size = baseSize;
+    int* fds = static_cast<int*>(baseFds.get());
+    size_t numFds = baseNumFds;
+    if (flattenFence(hidl_handle(nh), buffer, size, fds, numFds) != NO_ERROR) {
+        native_handle_delete(nh);
+        return false;
+    }
+    native_handle_delete(nh);
+
+    void const* constBuffer = static_cast<void const*>(baseBuffer.get());
+    size = baseSize;
+    int const* constFds = static_cast<int const*>(baseFds.get());
+    numFds = baseNumFds;
+    if (l->unflatten(constBuffer, size, constFds, numFds) != NO_ERROR) {
+        return false;
+    }
+
+    return true;
+}
+
+// Ref: frameworks/native/libs/ui/FenceTime.cpp: FenceTime::Snapshot
+
+/**
+ * \brief Return the size of the non-fd buffer required to flatten
+ * `FenceTimeSnapshot`.
+ *
+ * \param[in] t The input `FenceTimeSnapshot`.
+ * \return The required size of the flat buffer.
+ */
+inline size_t getFlattenedSize(
+        IOmxBufferProducer::FenceTimeSnapshot const& t) {
+    constexpr size_t min = sizeof(t.state);
+    switch (t.state) {
+        case IOmxBufferProducer::FenceTimeSnapshot::State::EMPTY:
+            return min;
+        case IOmxBufferProducer::FenceTimeSnapshot::State::FENCE:
+            return min + getFenceFlattenedSize(t.fence);
+        case IOmxBufferProducer::FenceTimeSnapshot::State::SIGNAL_TIME:
+            return min + sizeof(
+                    ::android::FenceTime::Snapshot::signalTime);
+    }
+    return 0;
+}
+
+/**
+ * \brief Return the number of file descriptors contained in
+ * `FenceTimeSnapshot`.
+ *
+ * \param[in] t The input `FenceTimeSnapshot`.
+ * \return The number of file descriptors contained in \p snapshot.
+ */
+inline size_t getFdCount(
+        IOmxBufferProducer::FenceTimeSnapshot const& t) {
+    return t.state ==
+            IOmxBufferProducer::FenceTimeSnapshot::State::FENCE ?
+            getFenceFdCount(t.fence) : 0;
+}
+
+/**
+ * \brief Flatten `FenceTimeSnapshot`.
+ *
+ * \param[in] t The source `FenceTimeSnapshot`.
+ * \param[in,out] buffer The pointer to the flat non-fd buffer.
+ * \param[in,out] size The size of the flat non-fd buffer.
+ * \param[in,out] fds The pointer to the flat fd buffer.
+ * \param[in,out] numFds The size of the flat fd buffer.
+ * \return `NO_ERROR` on success; other value on failure.
+ *
+ * This function will duplicate the file descriptor in `t.fence` if `t.state ==
+ * FENCE`.
+ */
+inline status_t flatten(IOmxBufferProducer::FenceTimeSnapshot const& t,
+        void*& buffer, size_t& size, int*& fds, size_t& numFds) {
+    if (size < getFlattenedSize(t)) {
+        return NO_MEMORY;
+    }
+
+    switch (t.state) {
+        case IOmxBufferProducer::FenceTimeSnapshot::State::EMPTY:
+            FlattenableUtils::write(buffer, size,
+                    ::android::FenceTime::Snapshot::State::EMPTY);
+            return NO_ERROR;
+        case IOmxBufferProducer::FenceTimeSnapshot::State::FENCE:
+            FlattenableUtils::write(buffer, size,
+                    ::android::FenceTime::Snapshot::State::FENCE);
+            return flattenFence(t.fence, buffer, size, fds, numFds);
+        case IOmxBufferProducer::FenceTimeSnapshot::State::SIGNAL_TIME:
+            FlattenableUtils::write(buffer, size,
+                    ::android::FenceTime::Snapshot::State::SIGNAL_TIME);
+            FlattenableUtils::write(buffer, size, t.signalTimeNs);
+            return NO_ERROR;
+    }
+    return NO_ERROR;
+}
+
+/**
+ * \brief Unflatten `FenceTimeSnapshot`.
+ *
+ * \param[out] t The destination `FenceTimeSnapshot`.
+ * \param[out] nh The underlying native handle.
+ * \param[in,out] buffer The pointer to the flat non-fd buffer.
+ * \param[in,out] size The size of the flat non-fd buffer.
+ * \param[in,out] fds The pointer to the flat fd buffer.
+ * \param[in,out] numFds The size of the flat fd buffer.
+ * \return `NO_ERROR` on success; other value on failure.
+ *
+ * If the return value is `NO_ERROR` and the constructed snapshot contains a
+ * file descriptor, \p nh will be created to hold that file descriptor. In this
+ * case, \p nh needs to be deleted with `native_handle_delete()` afterwards.
+ */
+inline status_t unflatten(
+        IOmxBufferProducer::FenceTimeSnapshot* t, native_handle_t** nh,
+        void const*& buffer, size_t& size, int const*& fds, size_t& numFds) {
+    if (size < sizeof(t->state)) {
+        return NO_MEMORY;
+    }
+
+    *nh = nullptr;
+    ::android::FenceTime::Snapshot::State state;
+    FlattenableUtils::read(buffer, size, state);
+    switch (state) {
+        case ::android::FenceTime::Snapshot::State::EMPTY:
+            t->state = IOmxBufferProducer::FenceTimeSnapshot::State::EMPTY;
+            return NO_ERROR;
+        case ::android::FenceTime::Snapshot::State::FENCE:
+            t->state = IOmxBufferProducer::FenceTimeSnapshot::State::FENCE;
+            return unflattenFence(&t->fence, nh, buffer, size, fds, numFds);
+        case ::android::FenceTime::Snapshot::State::SIGNAL_TIME:
+            t->state = IOmxBufferProducer::FenceTimeSnapshot::State::SIGNAL_TIME;
+            if (size < sizeof(t->signalTimeNs)) {
+                return NO_MEMORY;
+            }
+            FlattenableUtils::read(buffer, size, t->signalTimeNs);
+            return NO_ERROR;
+    }
+    return NO_ERROR;
+}
+
+// Ref: frameworks/native/libs/gui/FrameTimestamps.cpp: FrameEventsDelta
+
+/**
+ * \brief Return a lower bound on the size of the non-fd buffer required to
+ * flatten `FrameEventsDelta`.
+ *
+ * \param[in] t The input `FrameEventsDelta`.
+ * \return A lower bound on the size of the flat buffer.
+ */
+constexpr size_t minFlattenedSize(
+        IOmxBufferProducer::FrameEventsDelta const& /* t */) {
+    return sizeof(uint64_t) + // mFrameNumber
+            sizeof(uint8_t) + // mIndex
+            sizeof(uint8_t) + // mAddPostCompositeCalled
+            sizeof(uint8_t) + // mAddRetireCalled
+            sizeof(uint8_t) + // mAddReleaseCalled
+            sizeof(nsecs_t) + // mPostedTime
+            sizeof(nsecs_t) + // mRequestedPresentTime
+            sizeof(nsecs_t) + // mLatchTime
+            sizeof(nsecs_t) + // mFirstRefreshStartTime
+            sizeof(nsecs_t); // mLastRefreshStartTime
+}
+
+/**
+ * \brief Return the size of the non-fd buffer required to flatten
+ * `FrameEventsDelta`.
+ *
+ * \param[in] t The input `FrameEventsDelta`.
+ * \return The required size of the flat buffer.
+ */
+inline size_t getFlattenedSize(
+        IOmxBufferProducer::FrameEventsDelta const& t) {
+    return minFlattenedSize(t) +
+            getFlattenedSize(t.gpuCompositionDoneFence) +
+            getFlattenedSize(t.displayPresentFence) +
+            getFlattenedSize(t.displayRetireFence) +
+            getFlattenedSize(t.releaseFence);
+};
+
+/**
+ * \brief Return the number of file descriptors contained in
+ * `FrameEventsDelta`.
+ *
+ * \param[in] t The input `FrameEventsDelta`.
+ * \return The number of file descriptors contained in \p t.
+ */
+inline size_t getFdCount(
+        IOmxBufferProducer::FrameEventsDelta const& t) {
+    return getFdCount(t.gpuCompositionDoneFence) +
+            getFdCount(t.displayPresentFence) +
+            getFdCount(t.displayRetireFence) +
+            getFdCount(t.releaseFence);
+};
+
+/**
+ * \brief Unflatten `FrameEventsDelta`.
+ *
+ * \param[out] t The destination `FrameEventsDelta`.
+ * \param[out] nh The underlying array of native handles.
+ * \param[in,out] buffer The pointer to the flat non-fd buffer.
+ * \param[in,out] size The size of the flat non-fd buffer.
+ * \param[in,out] fds The pointer to the flat fd buffer.
+ * \param[in,out] numFds The size of the flat fd buffer.
+ * \return `NO_ERROR` on success; other value on failure.
+ *
+ * If the return value is `NO_ERROR`, \p nh will have length 4, and it will be
+ * populated with `nullptr` or newly created handles. Each non-null slot in \p
+ * nh will need to be deleted manually with `native_handle_delete()`.
+ */
+inline status_t unflatten(IOmxBufferProducer::FrameEventsDelta* t,
+        std::vector<native_handle_t*>* nh,
+        void const*& buffer, size_t& size, int const*& fds, size_t& numFds) {
+    if (size < minFlattenedSize(*t)) {
+        return NO_MEMORY;
+    }
+    FlattenableUtils::read(buffer, size, t->frameNumber);
+
+    // These were written as uint8_t for alignment.
+    uint8_t temp = 0;
+    FlattenableUtils::read(buffer, size, temp);
+    size_t index = static_cast<size_t>(temp);
+    if (index >= ::android::FrameEventHistory::MAX_FRAME_HISTORY) {
+        return BAD_VALUE;
+    }
+    t->index = static_cast<uint32_t>(index);
+
+    FlattenableUtils::read(buffer, size, temp);
+    t->addPostCompositeCalled = static_cast<bool>(temp);
+    FlattenableUtils::read(buffer, size, temp);
+    t->addRetireCalled = static_cast<bool>(temp);
+    FlattenableUtils::read(buffer, size, temp);
+    t->addReleaseCalled = static_cast<bool>(temp);
+
+    FlattenableUtils::read(buffer, size, t->postedTimeNs);
+    FlattenableUtils::read(buffer, size, t->requestedPresentTimeNs);
+    FlattenableUtils::read(buffer, size, t->latchTimeNs);
+    FlattenableUtils::read(buffer, size, t->firstRefreshStartTimeNs);
+    FlattenableUtils::read(buffer, size, t->lastRefreshStartTimeNs);
+    FlattenableUtils::read(buffer, size, t->dequeueReadyTime);
+
+    // Fences
+    IOmxBufferProducer::FenceTimeSnapshot* tSnapshot[4];
+    tSnapshot[0] = &t->gpuCompositionDoneFence;
+    tSnapshot[1] = &t->displayPresentFence;
+    tSnapshot[2] = &t->displayRetireFence;
+    tSnapshot[3] = &t->releaseFence;
+    nh->resize(4);
+    for (size_t snapshotIndex = 0; snapshotIndex < 4; ++snapshotIndex) {
+        status_t status = unflatten(
+                tSnapshot[snapshotIndex], &((*nh)[snapshotIndex]),
+                buffer, size, fds, numFds);
+        if (status != NO_ERROR) {
+            while (snapshotIndex > 0) {
+                --snapshotIndex;
+                if ((*nh)[snapshotIndex] != nullptr) {
+                    native_handle_delete((*nh)[snapshotIndex]);
+                }
+            }
+            return status;
+        }
+    }
+    return NO_ERROR;
+}
+
+/**
+ * \brief Flatten `FrameEventsDelta`.
+ *
+ * \param[in] t The source `FrameEventsDelta`.
+ * \param[in,out] buffer The pointer to the flat non-fd buffer.
+ * \param[in,out] size The size of the flat non-fd buffer.
+ * \param[in,out] fds The pointer to the flat fd buffer.
+ * \param[in,out] numFds The size of the flat fd buffer.
+ * \return `NO_ERROR` on success; other value on failure.
+ *
+ * This function will duplicate file descriptors contained in \p t.
+ */
+// Ref: frameworks/native/libs/gui/FrameTimestamp.cpp:
+//      FrameEventsDelta::flatten
+inline status_t flatten(IOmxBufferProducer::FrameEventsDelta const& t,
+        void*& buffer, size_t& size, int*& fds, size_t numFds) {
+    // Check that t.index is within a valid range.
+    if (t.index >= static_cast<uint32_t>(FrameEventHistory::MAX_FRAME_HISTORY)
+            || t.index > std::numeric_limits<uint8_t>::max()) {
+        return BAD_VALUE;
+    }
+
+    FlattenableUtils::write(buffer, size, t.frameNumber);
+
+    // These are static_cast to uint8_t for alignment.
+    FlattenableUtils::write(buffer, size, static_cast<uint8_t>(t.index));
+    FlattenableUtils::write(
+            buffer, size, static_cast<uint8_t>(t.addPostCompositeCalled));
+    FlattenableUtils::write(
+            buffer, size, static_cast<uint8_t>(t.addRetireCalled));
+    FlattenableUtils::write(
+            buffer, size, static_cast<uint8_t>(t.addReleaseCalled));
+
+    FlattenableUtils::write(buffer, size, t.postedTimeNs);
+    FlattenableUtils::write(buffer, size, t.requestedPresentTimeNs);
+    FlattenableUtils::write(buffer, size, t.latchTimeNs);
+    FlattenableUtils::write(buffer, size, t.firstRefreshStartTimeNs);
+    FlattenableUtils::write(buffer, size, t.lastRefreshStartTimeNs);
+    FlattenableUtils::write(buffer, size, t.dequeueReadyTime);
+
+    // Fences
+    IOmxBufferProducer::FenceTimeSnapshot const* tSnapshot[4];
+    tSnapshot[0] = &t.gpuCompositionDoneFence;
+    tSnapshot[1] = &t.displayPresentFence;
+    tSnapshot[2] = &t.displayRetireFence;
+    tSnapshot[3] = &t.releaseFence;
+    for (size_t snapshotIndex = 0; snapshotIndex < 4; ++snapshotIndex) {
+        status_t status = flatten(
+                *(tSnapshot[snapshotIndex]), buffer, size, fds, numFds);
+        if (status != NO_ERROR) {
+            return status;
+        }
+    }
+    return NO_ERROR;
+}
+
+// Ref: frameworks/native/libs/gui/FrameTimestamps.cpp: FrameEventHistoryDelta
+
+/**
+ * \brief Return the size of the non-fd buffer required to flatten
+ * `IOmxBufferProducer::FrameEventHistoryDelta`.
+ *
+ * \param[in] t The input `IOmxBufferProducer::FrameEventHistoryDelta`.
+ * \return The required size of the flat buffer.
+ */
+inline size_t getFlattenedSize(
+        IOmxBufferProducer::FrameEventHistoryDelta const& t) {
+    size_t size = 4 + // mDeltas.size()
+            sizeof(t.compositorTiming);
+    for (size_t i = 0; i < t.deltas.size(); ++i) {
+        size += getFlattenedSize(t.deltas[i]);
+    }
+    return size;
+}
+
+/**
+ * \brief Return the number of file descriptors contained in
+ * `IOmxBufferProducer::FrameEventHistoryDelta`.
+ *
+ * \param[in] t The input `IOmxBufferProducer::FrameEventHistoryDelta`.
+ * \return The number of file descriptors contained in \p t.
+ */
+inline size_t getFdCount(
+        IOmxBufferProducer::FrameEventHistoryDelta const& t) {
+    size_t numFds = 0;
+    for (size_t i = 0; i < t.deltas.size(); ++i) {
+        numFds += getFdCount(t.deltas[i]);
+    }
+    return numFds;
+}
+
+/**
+ * \brief Unflatten `FrameEventHistoryDelta`.
+ *
+ * \param[out] t The destination `FrameEventHistoryDelta`.
+ * \param[out] nh The underlying array of arrays of native handles.
+ * \param[in,out] buffer The pointer to the flat non-fd buffer.
+ * \param[in,out] size The size of the flat non-fd buffer.
+ * \param[in,out] fds The pointer to the flat fd buffer.
+ * \param[in,out] numFds The size of the flat fd buffer.
+ * \return `NO_ERROR` on success; other value on failure.
+ *
+ * If the return value is `NO_ERROR`, \p nh will be populated with `nullptr` or
+ * newly created handles. The second dimension of \p nh will be 4. Each non-null
+ * slot in \p nh will need to be deleted manually with `native_handle_delete()`.
+ */
+inline status_t unflatten(
+        IOmxBufferProducer::FrameEventHistoryDelta* t,
+        std::vector<std::vector<native_handle_t*> >* nh,
+        void const*& buffer, size_t& size, int const*& fds, size_t& numFds) {
+    if (size < 4) {
+        return NO_MEMORY;
+    }
+
+    FlattenableUtils::read(buffer, size, t->compositorTiming);
+
+    uint32_t deltaCount = 0;
+    FlattenableUtils::read(buffer, size, deltaCount);
+    if (static_cast<size_t>(deltaCount) >
+            ::android::FrameEventHistory::MAX_FRAME_HISTORY) {
+        return BAD_VALUE;
+    }
+    t->deltas.resize(deltaCount);
+    nh->resize(deltaCount);
+    for (size_t deltaIndex = 0; deltaIndex < deltaCount; ++deltaIndex) {
+        status_t status = unflatten(
+                &(t->deltas[deltaIndex]), &((*nh)[deltaIndex]),
+                buffer, size, fds, numFds);
+        if (status != NO_ERROR) {
+            return status;
+        }
+    }
+    return NO_ERROR;
+}
+
+/**
+ * \brief Flatten `FrameEventHistoryDelta`.
+ *
+ * \param[in] t The source `FrameEventHistoryDelta`.
+ * \param[in,out] buffer The pointer to the flat non-fd buffer.
+ * \param[in,out] size The size of the flat non-fd buffer.
+ * \param[in,out] fds The pointer to the flat fd buffer.
+ * \param[in,out] numFds The size of the flat fd buffer.
+ * \return `NO_ERROR` on success; other value on failure.
+ *
+ * This function will duplicate file descriptors contained in \p t.
+ */
+inline status_t flatten(
+        IOmxBufferProducer::FrameEventHistoryDelta const& t,
+        void*& buffer, size_t& size, int*& fds, size_t& numFds) {
+    if (t.deltas.size() > ::android::FrameEventHistory::MAX_FRAME_HISTORY) {
+        return BAD_VALUE;
+    }
+    if (size < getFlattenedSize(t)) {
+        return NO_MEMORY;
+    }
+
+    FlattenableUtils::write(buffer, size, t.compositorTiming);
+
+    FlattenableUtils::write(buffer, size, static_cast<uint32_t>(t.deltas.size()));
+    for (size_t deltaIndex = 0; deltaIndex < t.deltas.size(); ++deltaIndex) {
+        status_t status = flatten(t.deltas[deltaIndex], buffer, size, fds, numFds);
+        if (status != NO_ERROR) {
+            return status;
+        }
+    }
+    return NO_ERROR;
+}
+
+/**
+ * \brief Wrap `::android::FrameEventHistoryData` in
+ * `IOmxBufferProducer::FrameEventHistoryDelta`.
+ *
+ * \param[out] t The wrapper of type
+ * `IOmxBufferProducer::FrameEventHistoryDelta`.
+ * \param[out] nh The array of array of native handles that are referred to by
+ * members of \p t.
+ * \param[in] l The source `::android::FrameEventHistoryDelta`.
+ *
+ * On success, each member of \p nh will be either `nullptr` or a newly created
+ * native handle. All the non-`nullptr` elements must be deleted individually
+ * with `native_handle_delete()`.
+ */
+inline bool wrapAs(IOmxBufferProducer::FrameEventHistoryDelta* t,
+        std::vector<std::vector<native_handle_t*> >* nh,
+        ::android::FrameEventHistoryDelta const& l) {
+
+    size_t const baseSize = l.getFlattenedSize();
+    std::unique_ptr<uint8_t[]> baseBuffer(
+            new (std::nothrow) uint8_t[baseSize]);
+    if (!baseBuffer) {
+        return false;
+    }
+
+    size_t const baseNumFds = l.getFdCount();
+    std::unique_ptr<int[]> baseFds(
+            new (std::nothrow) int[baseNumFds]);
+    if (!baseFds) {
+        return false;
+    }
+
+    void* buffer = static_cast<void*>(baseBuffer.get());
+    size_t size = baseSize;
+    int* fds = baseFds.get();
+    size_t numFds = baseNumFds;
+    if (l.flatten(buffer, size, fds, numFds) != NO_ERROR) {
+        return false;
+    }
+
+    void const* constBuffer = static_cast<void const*>(baseBuffer.get());
+    size = baseSize;
+    int const* constFds = static_cast<int const*>(baseFds.get());
+    numFds = baseNumFds;
+    if (unflatten(t, nh, constBuffer, size, constFds, numFds) != NO_ERROR) {
+        return false;
+    }
+
+    return true;
+}
+
+/**
+ * \brief Convert `IOmxBufferProducer::FrameEventHistoryDelta` to
+ * `::android::FrameEventHistoryDelta`.
+ *
+ * \param[out] l The destination `::android::FrameEventHistoryDelta`.
+ * \param[in] t The source `IOmxBufferProducer::FrameEventHistoryDelta`.
+ *
+ * This function will duplicate all file descriptors contained in \p t.
+ */
+inline bool convertTo(
+        ::android::FrameEventHistoryDelta* l,
+        IOmxBufferProducer::FrameEventHistoryDelta const& t) {
+
+    size_t const baseSize = getFlattenedSize(t);
+    std::unique_ptr<uint8_t[]> baseBuffer(
+            new (std::nothrow) uint8_t[baseSize]);
+    if (!baseBuffer) {
+        return false;
+    }
+
+    size_t const baseNumFds = getFdCount(t);
+    std::unique_ptr<int[]> baseFds(
+            new (std::nothrow) int[baseNumFds]);
+    if (!baseFds) {
+        return false;
+    }
+
+    void* buffer = static_cast<void*>(baseBuffer.get());
+    size_t size = baseSize;
+    int* fds = static_cast<int*>(baseFds.get());
+    size_t numFds = baseNumFds;
+    if (flatten(t, buffer, size, fds, numFds) != NO_ERROR) {
+        return false;
+    }
+
+    void const* constBuffer = static_cast<void const*>(baseBuffer.get());
+    size = baseSize;
+    int const* constFds = static_cast<int const*>(baseFds.get());
+    numFds = baseNumFds;
+    if (l->unflatten(constBuffer, size, constFds, numFds) != NO_ERROR) {
+        return false;
+    }
+
+    return true;
+}
+
+// Ref: frameworks/native/libs/ui/Region.cpp
+
+/**
+ * \brief Return the size of the buffer required to flatten `Region`.
+ *
+ * \param[in] t The input `Region`.
+ * \return The required size of the flat buffer.
+ */
+inline size_t getFlattenedSize(Region const& t) {
+    return sizeof(uint32_t) + t.size() * sizeof(::android::Rect);
+}
+
+/**
+ * \brief Unflatten `Region`.
+ *
+ * \param[out] t The destination `Region`.
+ * \param[in,out] buffer The pointer to the flat buffer.
+ * \param[in,out] size The size of the flat buffer.
+ * \return `NO_ERROR` on success; other value on failure.
+ */
+inline status_t unflatten(Region* t, void const*& buffer, size_t& size) {
+    if (size < sizeof(uint32_t)) {
+        return NO_MEMORY;
+    }
+
+    uint32_t numRects = 0;
+    FlattenableUtils::read(buffer, size, numRects);
+    if (size < numRects * sizeof(Rect)) {
+        return NO_MEMORY;
+    }
+    if (numRects > (UINT32_MAX / sizeof(Rect))) {
+        return NO_MEMORY;
+    }
+
+    t->resize(numRects);
+    for (size_t r = 0; r < numRects; ++r) {
+        ::android::Rect rect(::android::Rect::EMPTY_RECT);
+        status_t status = rect.unflatten(buffer, size);
+        if (status != NO_ERROR) {
+            return status;
+        }
+        FlattenableUtils::advance(buffer, size, sizeof(rect));
+        (*t)[r] = Rect{
+                static_cast<int32_t>(rect.left),
+                static_cast<int32_t>(rect.top),
+                static_cast<int32_t>(rect.right),
+                static_cast<int32_t>(rect.bottom)};
+    }
+    return NO_ERROR;
+}
+
+/**
+ * \brief Flatten `Region`.
+ *
+ * \param[in] t The source `Region`.
+ * \param[in,out] buffer The pointer to the flat buffer.
+ * \param[in,out] size The size of the flat buffer.
+ * \return `NO_ERROR` on success; other value on failure.
+ */
+inline status_t flatten(Region const& t, void*& buffer, size_t& size) {
+    if (size < getFlattenedSize(t)) {
+        return NO_MEMORY;
+    }
+
+    FlattenableUtils::write(buffer, size, static_cast<uint32_t>(t.size()));
+    for (size_t r = 0; r < t.size(); ++r) {
+        ::android::Rect rect(
+                static_cast<int32_t>(t[r].left),
+                static_cast<int32_t>(t[r].top),
+                static_cast<int32_t>(t[r].right),
+                static_cast<int32_t>(t[r].bottom));
+        status_t status = rect.flatten(buffer, size);
+        if (status != NO_ERROR) {
+            return status;
+        }
+        FlattenableUtils::advance(buffer, size, sizeof(rect));
+    }
+    return NO_ERROR;
+}
+
+/**
+ * \brief Convert `::android::Region` to `Region`.
+ *
+ * \param[out] t The destination `Region`.
+ * \param[in] l The source `::android::Region`.
+ */
+// convert: ::android::Region -> Region
+inline bool convertTo(Region* t, ::android::Region const& l) {
+    size_t const baseSize = l.getFlattenedSize();
+    std::unique_ptr<uint8_t[]> baseBuffer(
+            new (std::nothrow) uint8_t[baseSize]);
+    if (!baseBuffer) {
+        return false;
+    }
+
+    void* buffer = static_cast<void*>(baseBuffer.get());
+    size_t size = baseSize;
+    if (l.flatten(buffer, size) != NO_ERROR) {
+        return false;
+    }
+
+    void const* constBuffer = static_cast<void const*>(baseBuffer.get());
+    size = baseSize;
+    if (unflatten(t, constBuffer, size) != NO_ERROR) {
+        return false;
+    }
+
+    return true;
+}
+
+/**
+ * \brief Convert `Region` to `::android::Region`.
+ *
+ * \param[out] l The destination `::android::Region`.
+ * \param[in] t The source `Region`.
+ */
+// convert: Region -> ::android::Region
+inline bool convertTo(::android::Region* l, Region const& t) {
+    size_t const baseSize = getFlattenedSize(t);
+    std::unique_ptr<uint8_t[]> baseBuffer(
+            new (std::nothrow) uint8_t[baseSize]);
+    if (!baseBuffer) {
+        return false;
+    }
+
+    void* buffer = static_cast<void*>(baseBuffer.get());
+    size_t size = baseSize;
+    if (flatten(t, buffer, size) != NO_ERROR) {
+        return false;
+    }
+
+    void const* constBuffer = static_cast<void const*>(baseBuffer.get());
+    size = baseSize;
+    if (l->unflatten(constBuffer, size) != NO_ERROR) {
+        return false;
+    }
+
+    return true;
+}
+
+// Ref: frameworks/native/libs/gui/IGraphicBufferProducer.cpp:
+//      IGraphicBufferProducer::QueueBufferInput
+
+/**
+ * \brief Return a lower bound on the size of the buffer required to flatten
+ * `IOmxBufferProducer::QueueBufferInput`.
+ *
+ * \param[in] t The input `IOmxBufferProducer::QueueBufferInput`.
+ * \return A lower bound on the size of the flat buffer.
+ */
+constexpr size_t minFlattenedSize(
+        IOmxBufferProducer::QueueBufferInput const& /* t */) {
+    return sizeof(int64_t) + // timestamp
+            sizeof(int) + // isAutoTimestamp
+            sizeof(android_dataspace) + // dataSpace
+            sizeof(::android::Rect) + // crop
+            sizeof(int) + // scalingMode
+            sizeof(uint32_t) + // transform
+            sizeof(uint32_t) + // stickyTransform
+            sizeof(bool); // getFrameTimestamps
+}
+
+/**
+ * \brief Return the size of the buffer required to flatten
+ * `IOmxBufferProducer::QueueBufferInput`.
+ *
+ * \param[in] t The input `IOmxBufferProducer::QueueBufferInput`.
+ * \return The required size of the flat buffer.
+ */
+inline size_t getFlattenedSize(IOmxBufferProducer::QueueBufferInput const& t) {
+    return minFlattenedSize(t) +
+            getFenceFlattenedSize(t.fence) +
+            getFlattenedSize(t.surfaceDamage);
+}
+
+/**
+ * \brief Return the number of file descriptors contained in
+ * `IOmxBufferProducer::QueueBufferInput`.
+ *
+ * \param[in] t The input `IOmxBufferProducer::QueueBufferInput`.
+ * \return The number of file descriptors contained in \p t.
+ */
+inline size_t getFdCount(
+        IOmxBufferProducer::QueueBufferInput const& t) {
+    return getFenceFdCount(t.fence);
+}
+
+/**
+ * \brief Flatten `IOmxBufferProducer::QueueBufferInput`.
+ *
+ * \param[in] t The source `IOmxBufferProducer::QueueBufferInput`.
+ * \param[out] nh The native handle cloned from `t.fence`.
+ * \param[in,out] buffer The pointer to the flat non-fd buffer.
+ * \param[in,out] size The size of the flat non-fd buffer.
+ * \param[in,out] fds The pointer to the flat fd buffer.
+ * \param[in,out] numFds The size of the flat fd buffer.
+ * \return `NO_ERROR` on success; other value on failure.
+ *
+ * This function will duplicate the file descriptor in `t.fence`. */
+inline status_t flatten(IOmxBufferProducer::QueueBufferInput const& t,
+        native_handle_t** nh,
+        void*& buffer, size_t& size, int*& fds, size_t& numFds) {
+    if (size < getFlattenedSize(t)) {
+        return NO_MEMORY;
+    }
+
+    FlattenableUtils::write(buffer, size, t.timestamp);
+    FlattenableUtils::write(buffer, size, static_cast<int>(t.isAutoTimestamp));
+    FlattenableUtils::write(buffer, size,
+            static_cast<android_dataspace_t>(t.dataSpace));
+    FlattenableUtils::write(buffer, size, ::android::Rect(
+            static_cast<int32_t>(t.crop.left),
+            static_cast<int32_t>(t.crop.top),
+            static_cast<int32_t>(t.crop.right),
+            static_cast<int32_t>(t.crop.bottom)));
+    FlattenableUtils::write(buffer, size, static_cast<int>(t.scalingMode));
+    FlattenableUtils::write(buffer, size, t.transform);
+    FlattenableUtils::write(buffer, size, t.stickyTransform);
+    FlattenableUtils::write(buffer, size, t.getFrameTimestamps);
+
+    *nh = t.fence.getNativeHandle() == nullptr ?
+            nullptr : native_handle_clone(t.fence);
+    status_t status = flattenFence(hidl_handle(*nh), buffer, size, fds, numFds);
+    if (status != NO_ERROR) {
+        return status;
+    }
+    return flatten(t.surfaceDamage, buffer, size);
+}
+
+/**
+ * \brief Unflatten `IOmxBufferProducer::QueueBufferInput`.
+ *
+ * \param[out] t The destination `IOmxBufferProducer::QueueBufferInput`.
+ * \param[out] nh The underlying native handle for `t->fence`.
+ * \param[in,out] buffer The pointer to the flat non-fd buffer.
+ * \param[in,out] size The size of the flat non-fd buffer.
+ * \param[in,out] fds The pointer to the flat fd buffer.
+ * \param[in,out] numFds The size of the flat fd buffer.
+ * \return `NO_ERROR` on success; other value on failure.
+ *
+ * If the return value is `NO_ERROR` and `t->fence` contains a valid file
+ * descriptor, \p nh will be a newly created native handle holding that file
+ * descriptor. \p nh needs to be deleted with `native_handle_delete()`
+ * afterwards.
+ */
+inline status_t unflatten(
+        IOmxBufferProducer::QueueBufferInput* t, native_handle_t** nh,
+        void const*& buffer, size_t& size, int const*& fds, size_t& numFds) {
+    if (size < minFlattenedSize(*t)) {
+        return NO_MEMORY;
+    }
+
+    FlattenableUtils::read(buffer, size, t->timestamp);
+    int lIsAutoTimestamp;
+    FlattenableUtils::read(buffer, size, lIsAutoTimestamp);
+    t->isAutoTimestamp = static_cast<int32_t>(lIsAutoTimestamp);
+    android_dataspace_t lDataSpace;
+    FlattenableUtils::read(buffer, size, lDataSpace);
+    t->dataSpace = static_cast<Dataspace>(lDataSpace);
+    Rect lCrop;
+    FlattenableUtils::read(buffer, size, lCrop);
+    t->crop = Rect{
+            static_cast<int32_t>(lCrop.left),
+            static_cast<int32_t>(lCrop.top),
+            static_cast<int32_t>(lCrop.right),
+            static_cast<int32_t>(lCrop.bottom)};
+    int lScalingMode;
+    FlattenableUtils::read(buffer, size, lScalingMode);
+    t->scalingMode = static_cast<int32_t>(lScalingMode);
+    FlattenableUtils::read(buffer, size, t->transform);
+    FlattenableUtils::read(buffer, size, t->stickyTransform);
+    FlattenableUtils::read(buffer, size, t->getFrameTimestamps);
+
+    status_t status = unflattenFence(&(t->fence), nh,
+            buffer, size, fds, numFds);
+    if (status != NO_ERROR) {
+        return status;
+    }
+    return unflatten(&(t->surfaceDamage), buffer, size);
+}
+
+/**
+ * \brief Wrap `IGraphicBufferProducer::QueueBufferInput` in
+ * `IOmxBufferProducer::QueueBufferInput`.
+ *
+ * \param[out] t The wrapper of type
+ * `IOmxBufferProducer::QueueBufferInput`.
+ * \param[out] nh The underlying native handle for `t->fence`.
+ * \param[in] l The source `IGraphicBufferProducer::QueueBufferInput`.
+ *
+ * If the return value is `true` and `t->fence` contains a valid file
+ * descriptor, \p nh will be a newly created native handle holding that file
+ * descriptor. \p nh needs to be deleted with `native_handle_delete()`
+ * afterwards.
+ */
+inline bool wrapAs(
+        IOmxBufferProducer::QueueBufferInput* t,
+        native_handle_t** nh,
+        IGraphicBufferProducer::QueueBufferInput const& l) {
+
+    size_t const baseSize = l.getFlattenedSize();
+    std::unique_ptr<uint8_t[]> baseBuffer(
+            new (std::nothrow) uint8_t[baseSize]);
+    if (!baseBuffer) {
+        return false;
+    }
+
+    size_t const baseNumFds = l.getFdCount();
+    std::unique_ptr<int[]> baseFds(
+            new (std::nothrow) int[baseNumFds]);
+    if (!baseFds) {
+        return false;
+    }
+
+    void* buffer = static_cast<void*>(baseBuffer.get());
+    size_t size = baseSize;
+    int* fds = baseFds.get();
+    size_t numFds = baseNumFds;
+    if (l.flatten(buffer, size, fds, numFds) != NO_ERROR) {
+        return false;
+    }
+
+    void const* constBuffer = static_cast<void const*>(baseBuffer.get());
+    size = baseSize;
+    int const* constFds = static_cast<int const*>(baseFds.get());
+    numFds = baseNumFds;
+    if (unflatten(t, nh, constBuffer, size, constFds, numFds) != NO_ERROR) {
+        return false;
+    }
+
+    return true;
+}
+
+/**
+ * \brief Convert `IOmxBufferProducer::QueueBufferInput` to
+ * `IGraphicBufferProducer::QueueBufferInput`.
+ *
+ * \param[out] l The destination `IGraphicBufferProducer::QueueBufferInput`.
+ * \param[in] t The source `IOmxBufferProducer::QueueBufferInput`.
+ *
+ * If `t.fence` has a valid file descriptor, it will be duplicated.
+ */
+inline bool convertTo(
+        IGraphicBufferProducer::QueueBufferInput* l,
+        IOmxBufferProducer::QueueBufferInput const& t) {
+
+    size_t const baseSize = getFlattenedSize(t);
+    std::unique_ptr<uint8_t[]> baseBuffer(
+            new (std::nothrow) uint8_t[baseSize]);
+    if (!baseBuffer) {
+        return false;
+    }
+
+    size_t const baseNumFds = getFdCount(t);
+    std::unique_ptr<int[]> baseFds(
+            new (std::nothrow) int[baseNumFds]);
+    if (!baseFds) {
+        return false;
+    }
+
+    void* buffer = static_cast<void*>(baseBuffer.get());
+    size_t size = baseSize;
+    int* fds = baseFds.get();
+    size_t numFds = baseNumFds;
+    native_handle_t* nh;
+    if (flatten(t, &nh, buffer, size, fds, numFds) != NO_ERROR) {
+        return false;
+    }
+
+    void const* constBuffer = static_cast<void const*>(baseBuffer.get());
+    size = baseSize;
+    int const* constFds = static_cast<int const*>(baseFds.get());
+    numFds = baseNumFds;
+    if (l->unflatten(constBuffer, size, constFds, numFds) != NO_ERROR) {
+        native_handle_close(nh);
+        native_handle_delete(nh);
+        return false;
+    }
+
+    native_handle_delete(nh);
+    return true;
+}
+
+// Ref: frameworks/native/libs/gui/IGraphicBufferProducer.cpp:
+//      IGraphicBufferProducer::QueueBufferOutput
+
+/**
+ * \brief Wrap `IGraphicBufferProducer::QueueBufferOutput` in
+ * `IOmxBufferProducer::QueueBufferOutput`.
+ *
+ * \param[out] t The wrapper of type
+ * `IOmxBufferProducer::QueueBufferOutput`.
+ * \param[out] nh The array of array of native handles that are referred to by
+ * members of \p t.
+ * \param[in] l The source `IGraphicBufferProducer::QueueBufferOutput`.
+ *
+ * On success, each member of \p nh will be either `nullptr` or a newly created
+ * native handle. All the non-`nullptr` elements must be deleted individually
+ * with `native_handle_delete()`.
+ */
+// wrap: IGraphicBufferProducer::QueueBufferOutput ->
+// IOmxBufferProducer::QueueBufferOutput
+inline bool wrapAs(IOmxBufferProducer::QueueBufferOutput* t,
+        std::vector<std::vector<native_handle_t*> >* nh,
+        IGraphicBufferProducer::QueueBufferOutput const& l) {
+    if (!wrapAs(&(t->frameTimestamps), nh, l.frameTimestamps)) {
+        return false;
+    }
+    t->width = l.width;
+    t->height = l.height;
+    t->transformHint = l.transformHint;
+    t->numPendingBuffers = l.numPendingBuffers;
+    t->nextFrameNumber = l.nextFrameNumber;
+    t->bufferReplaced = l.bufferReplaced;
+    return true;
+}
+
+/**
+ * \brief Convert `IOmxBufferProducer::QueueBufferOutput` to
+ * `IGraphicBufferProducer::QueueBufferOutput`.
+ *
+ * \param[out] l The destination `IGraphicBufferProducer::QueueBufferOutput`.
+ * \param[in] t The source `IOmxBufferProducer::QueueBufferOutput`.
+ *
+ * This function will duplicate all file descriptors contained in \p t.
+ */
+// convert: IOmxBufferProducer::QueueBufferOutput ->
+// IGraphicBufferProducer::QueueBufferOutput
+inline bool convertTo(
+        IGraphicBufferProducer::QueueBufferOutput* l,
+        IOmxBufferProducer::QueueBufferOutput const& t) {
+    if (!convertTo(&(l->frameTimestamps), t.frameTimestamps)) {
+        return false;
+    }
+    l->width = t.width;
+    l->height = t.height;
+    l->transformHint = t.transformHint;
+    l->numPendingBuffers = t.numPendingBuffers;
+    l->nextFrameNumber = t.nextFrameNumber;
+    l->bufferReplaced = t.bufferReplaced;
+    return true;
+}
+
+/**
+ * \brief Convert `IGraphicBufferProducer::DisconnectMode` to
+ * `IOmxBufferProducer::DisconnectMode`.
+ *
+ * \param[in] l The source `IGraphicBufferProducer::DisconnectMode`.
+ * \return The corresponding `IOmxBufferProducer::DisconnectMode`.
+ */
+inline IOmxBufferProducer::DisconnectMode toOmxDisconnectMode(
+        IGraphicBufferProducer::DisconnectMode l) {
+    switch (l) {
+        case IGraphicBufferProducer::DisconnectMode::Api:
+            return IOmxBufferProducer::DisconnectMode::API;
+        case IGraphicBufferProducer::DisconnectMode::AllLocal:
+            return IOmxBufferProducer::DisconnectMode::ALL_LOCAL;
+    }
+    return IOmxBufferProducer::DisconnectMode::API;
+}
+
+/**
+ * \brief Convert `IOmxBufferProducer::DisconnectMode` to
+ * `IGraphicBufferProducer::DisconnectMode`.
+ *
+ * \param[in] l The source `IOmxBufferProducer::DisconnectMode`.
+ * \return The corresponding `IGraphicBufferProducer::DisconnectMode`.
+ */
+inline IGraphicBufferProducer::DisconnectMode toGuiDisconnectMode(
+        IOmxBufferProducer::DisconnectMode t) {
+    switch (t) {
+        case IOmxBufferProducer::DisconnectMode::API:
+            return IGraphicBufferProducer::DisconnectMode::Api;
+        case IOmxBufferProducer::DisconnectMode::ALL_LOCAL:
+            return IGraphicBufferProducer::DisconnectMode::AllLocal;
+    }
+    return IGraphicBufferProducer::DisconnectMode::Api;
+}
+
+}  // namespace utils
+}  // namespace V1_0
+}  // namespace omx
+}  // namespace media
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_MEDIA_OMX_V1_0__CONVERSION_H
diff --git a/include/media/omx/1.0/WGraphicBufferSource.h b/include/media/omx/1.0/WGraphicBufferSource.h
new file mode 100644
index 0000000..0ca5f44
--- /dev/null
+++ b/include/media/omx/1.0/WGraphicBufferSource.h
@@ -0,0 +1,92 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_MEDIA_OMX_V1_0_WGRAPHICBUFFERSOURCE_H
+#define ANDROID_HARDWARE_MEDIA_OMX_V1_0_WGRAPHICBUFFERSOURCE_H
+
+#include <hidl/MQDescriptor.h>
+#include <hidl/Status.h>
+
+#include <binder/Binder.h>
+#include <media/IOMX.h>
+
+#include <android/hardware/graphics/common/1.0/types.h>
+#include <android/hardware/media/omx/1.0/IOmxNode.h>
+#include <android/hardware/media/omx/1.0/IGraphicBufferSource.h>
+
+#include <android/BnGraphicBufferSource.h>
+
+namespace android {
+namespace hardware {
+namespace media {
+namespace omx {
+namespace V1_0 {
+namespace utils {
+
+using ::android::hardware::graphics::common::V1_0::Dataspace;
+using ::android::hardware::media::omx::V1_0::ColorAspects;
+using ::android::hardware::media::omx::V1_0::IGraphicBufferSource;
+using ::android::hardware::media::omx::V1_0::IOmxNode;
+using ::android::hidl::base::V1_0::IBase;
+using ::android::hardware::hidl_array;
+using ::android::hardware::hidl_memory;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::sp;
+using ::android::IOMXNode;
+
+/**
+ * Wrapper classes for conversion
+ * ==============================
+ *
+ * Naming convention:
+ * - LW = Legacy Wrapper --- It wraps a Treble object inside a legacy object.
+ * - TW = Treble Wrapper --- It wraps a legacy object inside a Treble object.
+ */
+
+typedef ::android::binder::Status BnStatus;
+typedef ::android::BnGraphicBufferSource BnGraphicBufferSource;
+typedef ::android::hardware::media::omx::V1_0::IGraphicBufferSource
+        TGraphicBufferSource;
+
+struct LWGraphicBufferSource : public BnGraphicBufferSource {
+    sp<TGraphicBufferSource> mBase;
+    LWGraphicBufferSource(sp<TGraphicBufferSource> const& base);
+    BnStatus configure(
+            const sp<IOMXNode>& omxNode, int32_t dataSpace) override;
+    BnStatus setSuspend(bool suspend, int64_t timeUs) override;
+    BnStatus setRepeatPreviousFrameDelayUs(
+            int64_t repeatAfterUs) override;
+    BnStatus setMaxFps(float maxFps) override;
+    BnStatus setTimeLapseConfig(
+            int64_t timePerFrameUs, int64_t timePerCaptureUs) override;
+    BnStatus setStartTimeUs(int64_t startTimeUs) override;
+    BnStatus setStopTimeUs(int64_t stopTimeUs) override;
+    BnStatus setColorAspects(int32_t aspects) override;
+    BnStatus setTimeOffsetUs(int64_t timeOffsetsUs) override;
+    BnStatus signalEndOfInputStream() override;
+};
+
+}  // namespace utils
+}  // namespace V1_0
+}  // namespace omx
+}  // namespace media
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_MEDIA_OMX_V1_0_WGRAPHICBUFFERSOURCE_H
diff --git a/include/media/omx/1.0/WOmx.h b/include/media/omx/1.0/WOmx.h
new file mode 100644
index 0000000..9268bd6
--- /dev/null
+++ b/include/media/omx/1.0/WOmx.h
@@ -0,0 +1,80 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_MEDIA_OMX_V1_0_WOMX_H
+#define ANDROID_HARDWARE_MEDIA_OMX_V1_0_WOMX_H
+
+#include <hidl/MQDescriptor.h>
+#include <hidl/Status.h>
+
+#include <media/IOMX.h>
+
+#include <android/hardware/media/omx/1.0/IOmx.h>
+
+namespace android {
+namespace hardware {
+namespace media {
+namespace omx {
+namespace V1_0 {
+namespace utils {
+
+using ::android::hardware::media::omx::V1_0::IOmx;
+using ::android::hardware::media::omx::V1_0::IOmxNode;
+using ::android::hardware::media::omx::V1_0::IOmxObserver;
+using ::android::hardware::media::omx::V1_0::Status;
+using ::android::hidl::base::V1_0::IBase;
+using ::android::hardware::hidl_array;
+using ::android::hardware::hidl_memory;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::sp;
+
+using ::android::List;
+using ::android::IOMX;
+using ::android::BnOMX;
+
+/**
+ * Wrapper classes for conversion
+ * ==============================
+ *
+ * Naming convention:
+ * - LW = Legacy Wrapper --- It wraps a Treble object inside a legacy object.
+ * - TW = Treble Wrapper --- It wraps a legacy object inside a Treble object.
+ */
+
+struct LWOmx : public BnOMX {
+    sp<IOmx> mBase;
+    LWOmx(sp<IOmx> const& base);
+    status_t listNodes(List<IOMX::ComponentInfo>* list) override;
+    status_t allocateNode(
+            char const* name,
+            sp<IOMXObserver> const& observer,
+            sp<IOMXNode>* omxNode) override;
+    status_t createInputSurface(
+            sp<::android::IGraphicBufferProducer>* bufferProducer,
+            sp<::android::IGraphicBufferSource>* bufferSource) override;
+};
+
+}  // namespace utils
+}  // namespace V1_0
+}  // namespace omx
+}  // namespace media
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_MEDIA_OMX_V1_0_WOMX_H
diff --git a/include/media/omx/1.0/WOmxBufferProducer.h b/include/media/omx/1.0/WOmxBufferProducer.h
new file mode 100644
index 0000000..54b9078
--- /dev/null
+++ b/include/media/omx/1.0/WOmxBufferProducer.h
@@ -0,0 +1,142 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_MEDIA_OMX_V1_0_WOMXBUFFERPRODUCER_H
+#define ANDROID_HARDWARE_MEDIA_OMX_V1_0_WOMXBUFFERPRODUCER_H
+
+#include <hidl/MQDescriptor.h>
+#include <hidl/Status.h>
+
+#include <binder/Binder.h>
+#include <gui/IGraphicBufferProducer.h>
+#include <gui/IProducerListener.h>
+
+#include <android/hardware/media/omx/1.0/IOmxBufferProducer.h>
+
+namespace android {
+namespace hardware {
+namespace media {
+namespace omx {
+namespace V1_0 {
+namespace utils {
+
+using ::android::hardware::graphics::common::V1_0::PixelFormat;
+using ::android::hardware::media::omx::V1_0::IOmxBufferProducer;
+using ::android::hardware::media::omx::V1_0::IOmxProducerListener;
+using ::android::hardware::media::omx::V1_0::Status;
+using ::android::hardware::media::V1_0::AnwBuffer;
+using ::android::hidl::base::V1_0::IBase;
+using ::android::hardware::hidl_array;
+using ::android::hardware::hidl_memory;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::sp;
+
+using ::android::IGraphicBufferProducer;
+using ::android::BnGraphicBufferProducer;
+using ::android::IProducerListener;
+
+struct TWOmxBufferProducer : public IOmxBufferProducer {
+    sp<IGraphicBufferProducer> mBase;
+    TWOmxBufferProducer(sp<IGraphicBufferProducer> const& base);
+    Return<void> requestBuffer(int32_t slot, requestBuffer_cb _hidl_cb)
+            override;
+    Return<Status> setMaxDequeuedBufferCount(int32_t maxDequeuedBuffers)
+            override;
+    Return<Status> setAsyncMode(bool async) override;
+    Return<void> dequeueBuffer(
+            uint32_t width, uint32_t height, PixelFormat format, uint32_t usage,
+            bool getFrameTimestamps, dequeueBuffer_cb _hidl_cb) override;
+    Return<Status> detachBuffer(int32_t slot) override;
+    Return<void> detachNextBuffer(detachNextBuffer_cb _hidl_cb) override;
+    Return<void> attachBuffer(const AnwBuffer& buffer, attachBuffer_cb _hidl_cb)
+            override;
+    Return<void> queueBuffer(
+            int32_t slot, const IOmxBufferProducer::QueueBufferInput& input,
+            queueBuffer_cb _hidl_cb) override;
+    Return<Status> cancelBuffer(int32_t slot, const hidl_handle& fence)
+            override;
+    Return<void> query(int32_t what, query_cb _hidl_cb) override;
+    Return<void> connect(const sp<IOmxProducerListener>& listener,
+            int32_t api, bool producerControlledByApp,
+            connect_cb _hidl_cb) override;
+    Return<Status> disconnect(
+            int32_t api,
+            IOmxBufferProducer::DisconnectMode mode) override;
+    Return<Status> setSidebandStream(const hidl_handle& stream) override;
+    Return<void> allocateBuffers(
+            uint32_t width, uint32_t height,
+            PixelFormat format, uint32_t usage) override;
+    Return<Status> allowAllocation(bool allow) override;
+    Return<Status> setGenerationNumber(uint32_t generationNumber) override;
+    Return<void> getConsumerName(getConsumerName_cb _hidl_cb) override;
+    Return<Status> setSharedBufferMode(bool sharedBufferMode) override;
+    Return<Status> setAutoRefresh(bool autoRefresh) override;
+    Return<Status> setDequeueTimeout(int64_t timeoutNs) override;
+    Return<void> getLastQueuedBuffer(getLastQueuedBuffer_cb _hidl_cb) override;
+    Return<void> getFrameTimestamps(getFrameTimestamps_cb _hidl_cb) override;
+    Return<void> getUniqueId(getUniqueId_cb _hidl_cb) override;
+};
+
+struct LWOmxBufferProducer : public BnGraphicBufferProducer {
+    sp<IOmxBufferProducer> mBase;
+    LWOmxBufferProducer(sp<IOmxBufferProducer> const& base);
+
+    status_t requestBuffer(int slot, sp<GraphicBuffer>* buf) override;
+    status_t setMaxDequeuedBufferCount(int maxDequeuedBuffers) override;
+    status_t setAsyncMode(bool async) override;
+    status_t dequeueBuffer(int* slot, sp<Fence>* fence, uint32_t w,
+            uint32_t h, ::android::PixelFormat format, uint32_t usage,
+            FrameEventHistoryDelta* outTimestamps) override;
+    status_t detachBuffer(int slot) override;
+    status_t detachNextBuffer(sp<GraphicBuffer>* outBuffer, sp<Fence>* outFence)
+            override;
+    status_t attachBuffer(int* outSlot, const sp<GraphicBuffer>& buffer)
+            override;
+    status_t queueBuffer(int slot,
+            const QueueBufferInput& input,
+            QueueBufferOutput* output) override;
+    status_t cancelBuffer(int slot, const sp<Fence>& fence) override;
+    int query(int what, int* value) override;
+    status_t connect(const sp<IProducerListener>& listener, int api,
+            bool producerControlledByApp, QueueBufferOutput* output) override;
+    status_t disconnect(int api, DisconnectMode mode = DisconnectMode::Api)
+            override;
+    status_t setSidebandStream(const sp<NativeHandle>& stream) override;
+    void allocateBuffers(uint32_t width, uint32_t height,
+            ::android::PixelFormat format, uint32_t usage) override;
+    status_t allowAllocation(bool allow) override;
+    status_t setGenerationNumber(uint32_t generationNumber) override;
+    String8 getConsumerName() const override;
+    status_t setSharedBufferMode(bool sharedBufferMode) override;
+    status_t setAutoRefresh(bool autoRefresh) override;
+    status_t setDequeueTimeout(nsecs_t timeout) override;
+    status_t getLastQueuedBuffer(sp<GraphicBuffer>* outBuffer,
+          sp<Fence>* outFence, float outTransformMatrix[16]) override;
+    void getFrameTimestamps(FrameEventHistoryDelta* outDelta) override;
+    status_t getUniqueId(uint64_t* outId) const override;
+};
+
+}  // namespace utils
+}  // namespace V1_0
+}  // namespace omx
+}  // namespace media
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_MEDIA_OMX_V1_0_WOMXBUFFERPRODUCER_H
diff --git a/include/media/omx/1.0/WOmxBufferSource.h b/include/media/omx/1.0/WOmxBufferSource.h
new file mode 100644
index 0000000..86322da
--- /dev/null
+++ b/include/media/omx/1.0/WOmxBufferSource.h
@@ -0,0 +1,90 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_MEDIA_OMX_V1_0_WOMXBUFFERSOURCE_H
+#define ANDROID_HARDWARE_MEDIA_OMX_V1_0_WOMXBUFFERSOURCE_H
+
+#include <hidl/MQDescriptor.h>
+#include <hidl/Status.h>
+
+#include <binder/Binder.h>
+#include <OMXFenceParcelable.h>
+
+#include <android/hardware/media/omx/1.0/IOmxBufferSource.h>
+#include <android/BnOMXBufferSource.h>
+
+namespace android {
+namespace hardware {
+namespace media {
+namespace omx {
+namespace V1_0 {
+namespace utils {
+
+using ::android::hardware::media::omx::V1_0::IOmxBufferSource;
+using ::android::hidl::base::V1_0::IBase;
+using ::android::hardware::hidl_array;
+using ::android::hardware::hidl_memory;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::hidl_handle;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::sp;
+
+using ::android::OMXFenceParcelable;
+using ::android::IOMXBufferSource;
+using ::android::BnOMXBufferSource;
+
+/**
+ * Wrapper classes for conversion
+ * ==============================
+ *
+ * Naming convention:
+ * - LW = Legacy Wrapper --- It wraps a Treble object inside a legacy object.
+ * - TW = Treble Wrapper --- It wraps a legacy object inside a Treble object.
+ */
+
+struct LWOmxBufferSource : public BnOMXBufferSource {
+    sp<IOmxBufferSource> mBase;
+    LWOmxBufferSource(sp<IOmxBufferSource> const& base);
+    ::android::binder::Status onOmxExecuting() override;
+    ::android::binder::Status onOmxIdle() override;
+    ::android::binder::Status onOmxLoaded() override;
+    ::android::binder::Status onInputBufferAdded(int32_t bufferID) override;
+    ::android::binder::Status onInputBufferEmptied(
+            int32_t bufferID, OMXFenceParcelable const& fenceParcel) override;
+};
+
+struct TWOmxBufferSource : public IOmxBufferSource {
+    sp<IOMXBufferSource> mBase;
+    TWOmxBufferSource(sp<IOMXBufferSource> const& base);
+    Return<void> onOmxExecuting() override;
+    Return<void> onOmxIdle() override;
+    Return<void> onOmxLoaded() override;
+    Return<void> onInputBufferAdded(uint32_t buffer) override;
+    Return<void> onInputBufferEmptied(
+            uint32_t buffer, hidl_handle const& fence) override;
+};
+
+
+}  // namespace utils
+}  // namespace V1_0
+}  // namespace omx
+}  // namespace media
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_MEDIA_OMX_V1_0_WOMXBUFFERSOURCE_H
diff --git a/include/media/omx/1.0/WOmxNode.h b/include/media/omx/1.0/WOmxNode.h
new file mode 100644
index 0000000..3176a65
--- /dev/null
+++ b/include/media/omx/1.0/WOmxNode.h
@@ -0,0 +1,166 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_MEDIA_OMX_V1_0_WOMXNODE_H
+#define ANDROID_HARDWARE_MEDIA_OMX_V1_0_WOMXNODE_H
+
+#include <hidl/MQDescriptor.h>
+#include <hidl/Status.h>
+
+#include <binder/HalToken.h>
+#include <utils/Errors.h>
+#include <media/IOMX.h>
+
+#include <android/hardware/media/omx/1.0/IOmxNode.h>
+#include <android/hardware/media/omx/1.0/IOmxObserver.h>
+
+namespace android {
+namespace hardware {
+namespace media {
+namespace omx {
+namespace V1_0 {
+namespace utils {
+
+using ::android::hardware::media::omx::V1_0::CodecBuffer;
+using ::android::hardware::media::omx::V1_0::IOmxBufferSource;
+using ::android::hardware::media::omx::V1_0::IOmxNode;
+using ::android::hardware::media::omx::V1_0::IOmxObserver;
+using ::android::hardware::media::omx::V1_0::Message;
+using ::android::hardware::media::omx::V1_0::PortMode;
+using ::android::hardware::media::omx::V1_0::Status;
+using ::android::hidl::base::V1_0::IBase;
+using ::android::hardware::hidl_array;
+using ::android::hardware::hidl_memory;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::sp;
+
+/**
+ * Wrapper classes for conversion
+ * ==============================
+ *
+ * Naming convention:
+ * - LW = Legacy Wrapper --- It wraps a Treble object inside a legacy object.
+ * - TW = Treble Wrapper --- It wraps a legacy object inside a Treble object.
+ */
+
+struct LWOmxNode : public H2BConverter<IOmxNode, IOMXNode, BnOMXNode> {
+    LWOmxNode(sp<IOmxNode> const& base) : CBase(base) {}
+    status_t freeNode() override;
+    status_t sendCommand(
+            OMX_COMMANDTYPE cmd, OMX_S32 param) override;
+    status_t getParameter(
+            OMX_INDEXTYPE index, void *params, size_t size) override;
+    status_t setParameter(
+            OMX_INDEXTYPE index, const void *params, size_t size) override;
+    status_t getConfig(
+            OMX_INDEXTYPE index, void *params, size_t size) override;
+    status_t setConfig(
+            OMX_INDEXTYPE index, const void *params, size_t size) override;
+    status_t setPortMode(
+            OMX_U32 port_index, IOMX::PortMode mode) override;
+    status_t prepareForAdaptivePlayback(
+            OMX_U32 portIndex, OMX_BOOL enable,
+            OMX_U32 maxFrameWidth, OMX_U32 maxFrameHeight) override;
+    status_t configureVideoTunnelMode(
+            OMX_U32 portIndex, OMX_BOOL tunneled,
+            OMX_U32 audioHwSync, native_handle_t **sidebandHandle) override;
+    status_t getGraphicBufferUsage(
+            OMX_U32 port_index, OMX_U32* usage) override;
+    status_t setInputSurface(
+            const sp<IOMXBufferSource> &bufferSource) override;
+    status_t allocateSecureBuffer(
+            OMX_U32 port_index, size_t size, buffer_id *buffer,
+            void **buffer_data, sp<NativeHandle> *native_handle) override;
+    status_t useBuffer(
+            OMX_U32 port_index, const OMXBuffer &omxBuf,
+            buffer_id *buffer) override;
+    status_t freeBuffer(
+            OMX_U32 port_index, buffer_id buffer) override;
+    status_t fillBuffer(
+            buffer_id buffer, const OMXBuffer &omxBuf,
+            int fenceFd = -1) override;
+    status_t emptyBuffer(
+            buffer_id buffer, const OMXBuffer &omxBuf,
+            OMX_U32 flags, OMX_TICKS timestamp, int fenceFd = -1) override;
+    status_t getExtensionIndex(
+            const char *parameter_name,
+            OMX_INDEXTYPE *index) override;
+    status_t dispatchMessage(const omx_message &msg) override;
+
+    // TODO: this is temporary, will be removed when quirks move to OMX side.
+    status_t setQuirks(OMX_U32 quirks) override;
+};
+
+struct TWOmxNode : public IOmxNode {
+    sp<IOMXNode> mBase;
+    TWOmxNode(sp<IOMXNode> const& base);
+
+    Return<Status> freeNode() override;
+    Return<Status> sendCommand(uint32_t cmd, int32_t param) override;
+    Return<void> getParameter(
+            uint32_t index, hidl_vec<uint8_t> const& inParams,
+            getParameter_cb _hidl_cb) override;
+    Return<Status> setParameter(
+            uint32_t index, hidl_vec<uint8_t> const& params) override;
+    Return<void> getConfig(
+            uint32_t index, hidl_vec<uint8_t> const& inConfig,
+            getConfig_cb _hidl_cb) override;
+    Return<Status> setConfig(
+            uint32_t index, hidl_vec<uint8_t> const& config) override;
+    Return<Status> setPortMode(uint32_t portIndex, PortMode mode) override;
+    Return<Status> prepareForAdaptivePlayback(
+            uint32_t portIndex, bool enable,
+            uint32_t maxFrameWidth, uint32_t maxFrameHeight) override;
+    Return<void> configureVideoTunnelMode(
+            uint32_t portIndex, bool tunneled, uint32_t audioHwSync,
+            configureVideoTunnelMode_cb _hidl_cb) override;
+    Return<void> getGraphicBufferUsage(
+            uint32_t portIndex,
+            getGraphicBufferUsage_cb _hidl_cb) override;
+    Return<Status> setInputSurface(
+            sp<IOmxBufferSource> const& bufferSource) override;
+    Return<void> allocateSecureBuffer(
+            uint32_t portIndex, uint64_t size,
+            allocateSecureBuffer_cb _hidl_cb) override;
+    Return<void> useBuffer(
+            uint32_t portIndex, CodecBuffer const& codecBuffer,
+            useBuffer_cb _hidl_cb) override;
+    Return<Status> freeBuffer(uint32_t portIndex, uint32_t buffer) override;
+    Return<Status> fillBuffer(
+            uint32_t buffer, CodecBuffer const& codecBuffer,
+            const hidl_handle& fence) override;
+    Return<Status> emptyBuffer(
+            uint32_t buffer, CodecBuffer const& codecBuffer,
+            uint32_t flags, uint64_t timestampUs,
+            hidl_handle const& fence) override;
+    Return<void> getExtensionIndex(
+            hidl_string const& parameterName,
+            getExtensionIndex_cb _hidl_cb) override;
+    Return<Status> dispatchMessage(Message const& msg) override;
+    Return<void> setQuirks(uint32_t quirks) override;
+};
+
+}  // namespace utils
+}  // namespace V1_0
+}  // namespace omx
+}  // namespace media
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_MEDIA_OMX_V1_0_WOMXNODE_H
diff --git a/include/media/omx/1.0/WOmxObserver.h b/include/media/omx/1.0/WOmxObserver.h
new file mode 100644
index 0000000..d442218
--- /dev/null
+++ b/include/media/omx/1.0/WOmxObserver.h
@@ -0,0 +1,79 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_MEDIA_OMX_V1_0_WOMXOBSERVER_H
+#define ANDROID_HARDWARE_MEDIA_OMX_V1_0_WOMXOBSERVER_H
+
+#include <list>
+
+#include <hidl/MQDescriptor.h>
+#include <hidl/Status.h>
+
+#include <media/IOMX.h>
+
+#include <android/hardware/media/omx/1.0/IOmxObserver.h>
+
+namespace android {
+namespace hardware {
+namespace media {
+namespace omx {
+namespace V1_0 {
+namespace utils {
+
+using ::android::hardware::media::omx::V1_0::IOmxObserver;
+using ::android::hardware::media::omx::V1_0::Message;
+using ::android::hidl::base::V1_0::IBase;
+using ::android::hardware::hidl_array;
+using ::android::hardware::hidl_memory;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::sp;
+
+using ::android::IOMXObserver;
+using ::android::BnOMXObserver;
+using ::android::omx_message;
+
+/**
+ * Wrapper classes for conversion
+ * ==============================
+ *
+ * Naming convention:
+ * - LW = Legacy Wrapper --- It wraps a Treble object inside a legacy object.
+ * - TW = Treble Wrapper --- It wraps a legacy object inside a Treble object.
+ */
+
+struct LWOmxObserver : public BnOMXObserver {
+    sp<IOmxObserver> mBase;
+    LWOmxObserver(sp<IOmxObserver> const& base);
+    void onMessages(std::list<omx_message> const& lMessages) override;
+};
+
+struct TWOmxObserver : public IOmxObserver {
+    sp<IOMXObserver> mBase;
+    TWOmxObserver(sp<IOMXObserver> const& base);
+    Return<void> onMessages(const hidl_vec<Message>& tMessages) override;
+};
+
+}  // namespace utils
+}  // namespace V1_0
+}  // namespace omx
+}  // namespace media
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_MEDIA_OMX_V1_0_WOMXOBSERVER_H
diff --git a/include/media/omx/1.0/WOmxProducerListener.h b/include/media/omx/1.0/WOmxProducerListener.h
new file mode 100644
index 0000000..7d20887
--- /dev/null
+++ b/include/media/omx/1.0/WOmxProducerListener.h
@@ -0,0 +1,70 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_MEDIA_OMX_V1_0_WOMXPRODUCERLISTENER_H
+#define ANDROID_HARDWARE_MEDIA_OMX_V1_0_WOMXPRODUCERLISTENER_H
+
+#include <hidl/MQDescriptor.h>
+#include <hidl/Status.h>
+
+#include <binder/IBinder.h>
+#include <gui/IProducerListener.h>
+
+#include <android/hardware/media/omx/1.0/IOmxProducerListener.h>
+
+namespace android {
+namespace hardware {
+namespace media {
+namespace omx {
+namespace V1_0 {
+namespace utils {
+
+using ::android::hardware::media::omx::V1_0::IOmxProducerListener;
+using ::android::hidl::base::V1_0::IBase;
+using ::android::hardware::hidl_array;
+using ::android::hardware::hidl_memory;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::sp;
+
+using ::android::IProducerListener;
+using ::android::BnProducerListener;
+
+struct TWOmxProducerListener : public IOmxProducerListener {
+    sp<IProducerListener> mBase;
+    TWOmxProducerListener(sp<IProducerListener> const& base);
+    Return<void> onBufferReleased() override;
+    Return<bool> needsReleaseNotify() override;
+};
+
+class LWOmxProducerListener : public BnProducerListener {
+public:
+    sp<IOmxProducerListener> mBase;
+    LWOmxProducerListener(sp<IOmxProducerListener> const& base);
+    void onBufferReleased() override;
+    bool needsReleaseNotify() override;
+};
+
+}  // namespace utils
+}  // namespace V1_0
+}  // namespace omx
+}  // namespace media
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_MEDIA_OMX_V1_0_WOMXPRODUCERLISTENER_H
diff --git a/include/media/stagefright b/include/media/stagefright
new file mode 120000
index 0000000..ae324a8
--- /dev/null
+++ b/include/media/stagefright
@@ -0,0 +1 @@
+../../media/libstagefright/include
\ No newline at end of file
diff --git a/include/media/stagefright/ACodec.h b/include/media/stagefright/ACodec.h
deleted file mode 100644
index b59319c..0000000
--- a/include/media/stagefright/ACodec.h
+++ /dev/null
@@ -1,571 +0,0 @@
-/*
- * Copyright (C) 2010 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef A_CODEC_H_
-
-#define A_CODEC_H_
-
-#include <stdint.h>
-#include <android/native_window.h>
-#include <media/hardware/MetadataBufferType.h>
-#include <media/IOMX.h>
-#include <media/stagefright/foundation/AHierarchicalStateMachine.h>
-#include <media/stagefright/CodecBase.h>
-#include <media/stagefright/FrameRenderTracker.h>
-#include <media/stagefright/MediaDefs.h>
-#include <media/stagefright/SkipCutBuffer.h>
-#include <utils/NativeHandle.h>
-#include <OMX_Audio.h>
-
-#define TRACK_BUFFER_TIMING     0
-
-namespace android {
-
-struct ABuffer;
-class MemoryDealer;
-struct DescribeColorFormat2Params;
-struct DataConverter;
-
-struct ACodec : public AHierarchicalStateMachine, public CodecBase {
-    ACodec();
-
-    virtual void setNotificationMessage(const sp<AMessage> &msg);
-
-    void initiateSetup(const sp<AMessage> &msg);
-
-    virtual void initiateAllocateComponent(const sp<AMessage> &msg);
-    virtual void initiateConfigureComponent(const sp<AMessage> &msg);
-    virtual void initiateCreateInputSurface();
-    virtual void initiateSetInputSurface(const sp<PersistentSurface> &surface);
-    virtual void initiateStart();
-    virtual void initiateShutdown(bool keepComponentAllocated = false);
-
-    virtual status_t queryCapabilities(
-            const AString &name, const AString &mime, bool isEncoder,
-            sp<MediaCodecInfo::Capabilities> *caps);
-
-    virtual status_t setSurface(const sp<Surface> &surface);
-
-    virtual void signalFlush();
-    virtual void signalResume();
-
-    virtual void signalSetParameters(const sp<AMessage> &msg);
-    virtual void signalEndOfInputStream();
-    virtual void signalRequestIDRFrame();
-
-    // AHierarchicalStateMachine implements the message handling
-    virtual void onMessageReceived(const sp<AMessage> &msg) {
-        handleMessage(msg);
-    }
-
-    struct PortDescription : public CodecBase::PortDescription {
-        size_t countBuffers();
-        IOMX::buffer_id bufferIDAt(size_t index) const;
-        sp<ABuffer> bufferAt(size_t index) const;
-        sp<NativeHandle> handleAt(size_t index) const;
-        sp<RefBase> memRefAt(size_t index) const;
-
-    private:
-        friend struct ACodec;
-
-        Vector<IOMX::buffer_id> mBufferIDs;
-        Vector<sp<ABuffer> > mBuffers;
-        Vector<sp<NativeHandle> > mHandles;
-        Vector<sp<RefBase> > mMemRefs;
-
-        PortDescription();
-        void addBuffer(
-                IOMX::buffer_id id, const sp<ABuffer> &buffer,
-                const sp<NativeHandle> &handle, const sp<RefBase> &memRef);
-
-        DISALLOW_EVIL_CONSTRUCTORS(PortDescription);
-    };
-
-    static bool isFlexibleColorFormat(
-            const sp<IOMX> &omx, IOMX::node_id node,
-            uint32_t colorFormat, bool usingNativeBuffers, OMX_U32 *flexibleEquivalent);
-
-    // Returns 0 if configuration is not supported.  NOTE: this is treated by
-    // some OMX components as auto level, and by others as invalid level.
-    static int /* OMX_VIDEO_AVCLEVELTYPE */ getAVCLevelFor(
-            int width, int height, int rate, int bitrate,
-            OMX_VIDEO_AVCPROFILETYPE profile = OMX_VIDEO_AVCProfileBaseline);
-
-    // Quirk still supported, even though deprecated
-    enum Quirks {
-        kRequiresAllocateBufferOnInputPorts   = 1,
-        kRequiresAllocateBufferOnOutputPorts  = 2,
-    };
-
-    static status_t getOMXChannelMapping(size_t numChannels, OMX_AUDIO_CHANNELTYPE map[]);
-
-protected:
-    virtual ~ACodec();
-
-private:
-    struct BaseState;
-    struct UninitializedState;
-    struct LoadedState;
-    struct LoadedToIdleState;
-    struct IdleToExecutingState;
-    struct ExecutingState;
-    struct OutputPortSettingsChangedState;
-    struct ExecutingToIdleState;
-    struct IdleToLoadedState;
-    struct FlushingState;
-    struct DeathNotifier;
-
-    enum {
-        kWhatSetup                   = 'setu',
-        kWhatOMXMessage              = 'omx ',
-        // same as kWhatOMXMessage - but only used with
-        // handleMessage during OMX message-list handling
-        kWhatOMXMessageItem          = 'omxI',
-        kWhatOMXMessageList          = 'omxL',
-        kWhatInputBufferFilled       = 'inpF',
-        kWhatOutputBufferDrained     = 'outD',
-        kWhatShutdown                = 'shut',
-        kWhatFlush                   = 'flus',
-        kWhatResume                  = 'resm',
-        kWhatDrainDeferredMessages   = 'drai',
-        kWhatAllocateComponent       = 'allo',
-        kWhatConfigureComponent      = 'conf',
-        kWhatSetSurface              = 'setS',
-        kWhatCreateInputSurface      = 'cisf',
-        kWhatSetInputSurface         = 'sisf',
-        kWhatSignalEndOfInputStream  = 'eois',
-        kWhatStart                   = 'star',
-        kWhatRequestIDRFrame         = 'ridr',
-        kWhatSetParameters           = 'setP',
-        kWhatSubmitOutputMetadataBufferIfEOS = 'subm',
-        kWhatOMXDied                 = 'OMXd',
-        kWhatReleaseCodecInstance    = 'relC',
-    };
-
-    enum {
-        kPortIndexInput  = 0,
-        kPortIndexOutput = 1
-    };
-
-    enum {
-        kFlagIsSecure                                 = 1,
-        kFlagPushBlankBuffersToNativeWindowOnShutdown = 2,
-        kFlagIsGrallocUsageProtected                  = 4,
-    };
-
-    enum {
-        kVideoGrallocUsage = (GRALLOC_USAGE_HW_TEXTURE
-                            | GRALLOC_USAGE_HW_COMPOSER
-                            | GRALLOC_USAGE_EXTERNAL_DISP),
-    };
-
-    struct BufferInfo {
-        enum Status {
-            OWNED_BY_US,
-            OWNED_BY_COMPONENT,
-            OWNED_BY_UPSTREAM,
-            OWNED_BY_DOWNSTREAM,
-            OWNED_BY_NATIVE_WINDOW,
-            UNRECOGNIZED,            // not a tracked buffer
-        };
-
-        static inline Status getSafeStatus(BufferInfo *info) {
-            return info == NULL ? UNRECOGNIZED : info->mStatus;
-        }
-
-        IOMX::buffer_id mBufferID;
-        Status mStatus;
-        unsigned mDequeuedAt;
-
-        sp<ABuffer> mData;      // the client's buffer; if not using data conversion, this is the
-                                // codec buffer; otherwise, it is allocated separately
-        sp<RefBase> mMemRef;    // and a reference to the IMemory, so it does not go away
-        sp<ABuffer> mCodecData; // the codec's buffer
-        sp<RefBase> mCodecRef;  // and a reference to the IMemory
-        sp<GraphicBuffer> mGraphicBuffer;
-        sp<NativeHandle> mNativeHandle;
-        int mFenceFd;
-        FrameRenderTracker::Info *mRenderInfo;
-
-        // The following field and 4 methods are used for debugging only
-        bool mIsReadFence;
-        // Store |fenceFd| and set read/write flag. Log error, if there is already a fence stored.
-        void setReadFence(int fenceFd, const char *dbg);
-        void setWriteFence(int fenceFd, const char *dbg);
-        // Log error, if the current fence is not a read/write fence.
-        void checkReadFence(const char *dbg);
-        void checkWriteFence(const char *dbg);
-    };
-
-    static const char *_asString(BufferInfo::Status s);
-    void dumpBuffers(OMX_U32 portIndex);
-
-    // If |fd| is non-negative, waits for fence with |fd| and logs an error if it fails. Returns
-    // the error code or OK on success. If |fd| is negative, it returns OK
-    status_t waitForFence(int fd, const char *dbg);
-
-#if TRACK_BUFFER_TIMING
-    struct BufferStats {
-        int64_t mEmptyBufferTimeUs;
-        int64_t mFillBufferDoneTimeUs;
-    };
-
-    KeyedVector<int64_t, BufferStats> mBufferStats;
-#endif
-
-    sp<AMessage> mNotify;
-
-    sp<UninitializedState> mUninitializedState;
-    sp<LoadedState> mLoadedState;
-    sp<LoadedToIdleState> mLoadedToIdleState;
-    sp<IdleToExecutingState> mIdleToExecutingState;
-    sp<ExecutingState> mExecutingState;
-    sp<OutputPortSettingsChangedState> mOutputPortSettingsChangedState;
-    sp<ExecutingToIdleState> mExecutingToIdleState;
-    sp<IdleToLoadedState> mIdleToLoadedState;
-    sp<FlushingState> mFlushingState;
-    sp<SkipCutBuffer> mSkipCutBuffer;
-    int32_t mSampleRate;
-
-    AString mComponentName;
-    uint32_t mFlags;
-    uint32_t mQuirks;
-    sp<IOMX> mOMX;
-    sp<IBinder> mNodeBinder;
-    IOMX::node_id mNode;
-    sp<MemoryDealer> mDealer[2];
-
-    bool mUsingNativeWindow;
-    sp<ANativeWindow> mNativeWindow;
-    int mNativeWindowUsageBits;
-    android_native_rect_t mLastNativeWindowCrop;
-    int32_t mLastNativeWindowDataSpace;
-    sp<AMessage> mConfigFormat;
-    sp<AMessage> mInputFormat;
-    sp<AMessage> mOutputFormat;
-
-    // Initial output format + configuration params that is reused as the base for all subsequent
-    // format updates. This will equal to mOutputFormat until the first actual frame is received.
-    sp<AMessage> mBaseOutputFormat;
-
-    FrameRenderTracker mRenderTracker; // render information for buffers rendered by ACodec
-    Vector<BufferInfo> mBuffers[2];
-    bool mPortEOS[2];
-    status_t mInputEOSResult;
-
-    List<sp<AMessage> > mDeferredQueue;
-
-    sp<AMessage> mLastOutputFormat;
-    bool mIsVideo;
-    bool mIsEncoder;
-    bool mFatalError;
-    bool mShutdownInProgress;
-    bool mExplicitShutdown;
-    bool mIsLegacyVP9Decoder;
-
-    // If "mKeepComponentAllocated" we only transition back to Loaded state
-    // and do not release the component instance.
-    bool mKeepComponentAllocated;
-
-    int32_t mEncoderDelay;
-    int32_t mEncoderPadding;
-    int32_t mRotationDegrees;
-
-    bool mChannelMaskPresent;
-    int32_t mChannelMask;
-    unsigned mDequeueCounter;
-    MetadataBufferType mInputMetadataType;
-    MetadataBufferType mOutputMetadataType;
-    bool mLegacyAdaptiveExperiment;
-    int32_t mMetadataBuffersToSubmit;
-    size_t mNumUndequeuedBuffers;
-    sp<DataConverter> mConverter[2];
-
-    int64_t mRepeatFrameDelayUs;
-    int64_t mMaxPtsGapUs;
-    float mMaxFps;
-
-    int64_t mTimePerFrameUs;
-    int64_t mTimePerCaptureUs;
-
-    bool mCreateInputBuffersSuspended;
-
-    bool mTunneled;
-
-    OMX_INDEXTYPE mDescribeColorAspectsIndex;
-    OMX_INDEXTYPE mDescribeHDRStaticInfoIndex;
-
-    status_t setCyclicIntraMacroblockRefresh(const sp<AMessage> &msg, int32_t mode);
-    status_t allocateBuffersOnPort(OMX_U32 portIndex);
-    status_t freeBuffersOnPort(OMX_U32 portIndex);
-    status_t freeBuffer(OMX_U32 portIndex, size_t i);
-
-    status_t handleSetSurface(const sp<Surface> &surface);
-    status_t setupNativeWindowSizeFormatAndUsage(
-            ANativeWindow *nativeWindow /* nonnull */, int *finalUsage /* nonnull */,
-            bool reconnect);
-
-    status_t configureOutputBuffersFromNativeWindow(
-            OMX_U32 *nBufferCount, OMX_U32 *nBufferSize,
-            OMX_U32 *nMinUndequeuedBuffers, bool preregister);
-    status_t allocateOutputMetadataBuffers();
-    status_t submitOutputMetadataBuffer();
-    void signalSubmitOutputMetadataBufferIfEOS_workaround();
-    status_t allocateOutputBuffersFromNativeWindow();
-    status_t cancelBufferToNativeWindow(BufferInfo *info);
-    status_t freeOutputBuffersNotOwnedByComponent();
-    BufferInfo *dequeueBufferFromNativeWindow();
-
-    inline bool storingMetadataInDecodedBuffers() {
-        return mOutputMetadataType >= 0 && !mIsEncoder;
-    }
-
-    inline bool usingMetadataOnEncoderOutput() {
-        return mOutputMetadataType >= 0 && mIsEncoder;
-    }
-
-    BufferInfo *findBufferByID(
-            uint32_t portIndex, IOMX::buffer_id bufferID,
-            ssize_t *index = NULL);
-
-    status_t setComponentRole(bool isEncoder, const char *mime);
-    static const char *getComponentRole(bool isEncoder, const char *mime);
-    static status_t setComponentRole(
-            const sp<IOMX> &omx, IOMX::node_id node, const char *role);
-
-    status_t configureCodec(const char *mime, const sp<AMessage> &msg);
-
-    status_t configureTunneledVideoPlayback(int32_t audioHwSync,
-            const sp<ANativeWindow> &nativeWindow);
-
-    status_t setVideoPortFormatType(
-            OMX_U32 portIndex,
-            OMX_VIDEO_CODINGTYPE compressionFormat,
-            OMX_COLOR_FORMATTYPE colorFormat,
-            bool usingNativeBuffers = false);
-
-    status_t setSupportedOutputFormat(bool getLegacyFlexibleFormat);
-
-    status_t setupVideoDecoder(
-            const char *mime, const sp<AMessage> &msg, bool usingNativeBuffers, bool haveSwRenderer,
-            sp<AMessage> &outputformat);
-
-    status_t setupVideoEncoder(
-            const char *mime, const sp<AMessage> &msg,
-            sp<AMessage> &outputformat, sp<AMessage> &inputformat);
-
-    status_t setVideoFormatOnPort(
-            OMX_U32 portIndex,
-            int32_t width, int32_t height,
-            OMX_VIDEO_CODINGTYPE compressionFormat, float frameRate = -1.0);
-
-    // sets |portIndex| port buffer numbers to be |bufferNum|. NOTE: Component could reject
-    // this setting if the |bufferNum| is less than the minimum buffer num of the port.
-    status_t setPortBufferNum(OMX_U32 portIndex, int bufferNum);
-
-    // gets index or sets it to 0 on error. Returns error from codec.
-    status_t initDescribeColorAspectsIndex();
-
-    // sets |params|. If |readBack| is true, it re-gets them afterwards if set succeeded.
-    // returns the codec error.
-    status_t setCodecColorAspects(DescribeColorAspectsParams &params, bool readBack = false);
-
-    // gets |params|; returns the codec error. |param| should not change on error.
-    status_t getCodecColorAspects(DescribeColorAspectsParams &params);
-
-    // gets dataspace guidance from codec and platform. |params| should be set up with the color
-    // aspects to use. If |tryCodec| is true, the codec is queried first. If it succeeds, we
-    // return OK. Otherwise, we fall back to the platform guidance and return the codec error;
-    // though, we return OK if the codec failed with UNSUPPORTED, as codec guidance is optional.
-    status_t getDataSpace(
-            DescribeColorAspectsParams &params, android_dataspace *dataSpace /* nonnull */,
-            bool tryCodec);
-
-    // sets color aspects for the encoder for certain |width/height| based on |configFormat|, and
-    // set resulting color config into |outputFormat|. If |usingNativeWindow| is true, we use
-    // video defaults if config is unspecified. Returns error from the codec.
-    status_t setColorAspectsForVideoDecoder(
-            int32_t width, int32_t height, bool usingNativeWindow,
-            const sp<AMessage> &configFormat, sp<AMessage> &outputFormat);
-
-    // gets color aspects for the encoder for certain |width/height| based on |configFormat|, and
-    // set resulting color config into |outputFormat|. If |dataSpace| is non-null, it requests
-    // dataspace guidance from the codec and platform and sets it into |dataSpace|. Returns the
-    // error from the codec.
-    status_t getColorAspectsAndDataSpaceForVideoDecoder(
-            int32_t width, int32_t height, const sp<AMessage> &configFormat,
-            sp<AMessage> &outputFormat, android_dataspace *dataSpace);
-
-    // sets color aspects for the video encoder assuming bytebuffer mode for certain |configFormat|
-    // and sets resulting color config into |outputFormat|. For mediarecorder, also set dataspace
-    // into |inputFormat|. Returns the error from the codec.
-    status_t setColorAspectsForVideoEncoder(
-            const sp<AMessage> &configFormat,
-            sp<AMessage> &outputFormat, sp<AMessage> &inputFormat);
-
-    // sets color aspects for the video encoder in surface mode. This basically sets the default
-    // video values for unspecified aspects and sets the dataspace to use in the input format.
-    // Also sets the dataspace into |dataSpace|.
-    // Returns any codec errors during this configuration, except for optional steps.
-    status_t setInitialColorAspectsForVideoEncoderSurfaceAndGetDataSpace(
-            android_dataspace *dataSpace /* nonnull */);
-
-    // gets color aspects for the video encoder input port and sets them into the |format|.
-    // Returns any codec errors.
-    status_t getInputColorAspectsForVideoEncoder(sp<AMessage> &format);
-
-    // updates the encoder output format with |aspects| defaulting to |dataSpace| for
-    // unspecified values.
-    void onDataSpaceChanged(android_dataspace dataSpace, const ColorAspects &aspects);
-
-    // gets index or sets it to 0 on error. Returns error from codec.
-    status_t initDescribeHDRStaticInfoIndex();
-
-    // sets HDR static metadata for the video encoder/decoder based on |configFormat|, and
-    // sets resulting HDRStaticInfo config into |outputFormat|. Returns error from the codec.
-    status_t setHDRStaticInfoForVideoCodec(
-            OMX_U32 portIndex, const sp<AMessage> &configFormat, sp<AMessage> &outputFormat);
-
-    // sets |params|. Returns the codec error.
-    status_t setHDRStaticInfo(const DescribeHDRStaticInfoParams &params);
-
-    // gets |params|. Returns the codec error.
-    status_t getHDRStaticInfo(DescribeHDRStaticInfoParams &params);
-
-    // gets HDR static information for the video encoder/decoder port and sets them into |format|.
-    status_t getHDRStaticInfoForVideoCodec(OMX_U32 portIndex, sp<AMessage> &format);
-
-    typedef struct drcParams {
-        int32_t drcCut;
-        int32_t drcBoost;
-        int32_t heavyCompression;
-        int32_t targetRefLevel;
-        int32_t encodedTargetLevel;
-    } drcParams_t;
-
-    status_t setupAACCodec(
-            bool encoder,
-            int32_t numChannels, int32_t sampleRate, int32_t bitRate,
-            int32_t aacProfile, bool isADTS, int32_t sbrMode,
-            int32_t maxOutputChannelCount, const drcParams_t& drc,
-            int32_t pcmLimiterEnable);
-
-    status_t setupAC3Codec(bool encoder, int32_t numChannels, int32_t sampleRate);
-
-    status_t setupEAC3Codec(bool encoder, int32_t numChannels, int32_t sampleRate);
-
-    status_t selectAudioPortFormat(
-            OMX_U32 portIndex, OMX_AUDIO_CODINGTYPE desiredFormat);
-
-    status_t setupAMRCodec(bool encoder, bool isWAMR, int32_t bitRate);
-    status_t setupG711Codec(bool encoder, int32_t sampleRate, int32_t numChannels);
-
-    status_t setupFlacCodec(
-            bool encoder, int32_t numChannels, int32_t sampleRate, int32_t compressionLevel);
-
-    status_t setupRawAudioFormat(
-            OMX_U32 portIndex, int32_t sampleRate, int32_t numChannels,
-            AudioEncoding encoding = kAudioEncodingPcm16bit);
-
-    status_t setPriority(int32_t priority);
-    status_t setOperatingRate(float rateFloat, bool isVideo);
-    status_t getIntraRefreshPeriod(uint32_t *intraRefreshPeriod);
-    status_t setIntraRefreshPeriod(uint32_t intraRefreshPeriod, bool inConfigure);
-
-    // Configures temporal layering based on |msg|. |inConfigure| shall be true iff this is called
-    // during configure() call. on success the configured layering is set in |outputFormat|. If
-    // |outputFormat| is mOutputFormat, it is copied to trigger an output format changed event.
-    status_t configureTemporalLayers(
-            const sp<AMessage> &msg, bool inConfigure, sp<AMessage> &outputFormat);
-
-    status_t setMinBufferSize(OMX_U32 portIndex, size_t size);
-
-    status_t setupMPEG4EncoderParameters(const sp<AMessage> &msg);
-    status_t setupH263EncoderParameters(const sp<AMessage> &msg);
-    status_t setupAVCEncoderParameters(const sp<AMessage> &msg);
-    status_t setupHEVCEncoderParameters(const sp<AMessage> &msg);
-    status_t setupVPXEncoderParameters(const sp<AMessage> &msg, sp<AMessage> &outputFormat);
-
-    status_t verifySupportForProfileAndLevel(int32_t profile, int32_t level);
-
-    status_t configureBitrate(
-            int32_t bitrate, OMX_VIDEO_CONTROLRATETYPE bitrateMode);
-
-    status_t setupErrorCorrectionParameters();
-
-    status_t initNativeWindow();
-
-    // Returns true iff all buffers on the given port have status
-    // OWNED_BY_US or OWNED_BY_NATIVE_WINDOW.
-    bool allYourBuffersAreBelongToUs(OMX_U32 portIndex);
-
-    bool allYourBuffersAreBelongToUs();
-
-    void waitUntilAllPossibleNativeWindowBuffersAreReturnedToUs();
-
-    size_t countBuffersOwnedByComponent(OMX_U32 portIndex) const;
-    size_t countBuffersOwnedByNativeWindow() const;
-
-    void deferMessage(const sp<AMessage> &msg);
-    void processDeferredMessages();
-
-    void onFrameRendered(int64_t mediaTimeUs, nsecs_t systemNano);
-    // called when we have dequeued a buffer |buf| from the native window to track render info.
-    // |fenceFd| is the dequeue fence, and |info| points to the buffer info where this buffer is
-    // stored.
-    void updateRenderInfoForDequeuedBuffer(
-            ANativeWindowBuffer *buf, int fenceFd, BufferInfo *info);
-
-    // Checks to see if any frames have rendered up until |until|, and to notify client
-    // (MediaCodec) of rendered frames up-until the frame pointed to by |until| or the first
-    // unrendered frame. These frames are removed from the render queue.
-    // If |dropIncomplete| is true, unrendered frames up-until |until| will be dropped from the
-    // queue, allowing all rendered framed up till then to be notified of.
-    // (This will effectively clear the render queue up-until (and including) |until|.)
-    // If |until| is NULL, or is not in the rendered queue, this method will check all frames.
-    void notifyOfRenderedFrames(
-            bool dropIncomplete = false, FrameRenderTracker::Info *until = NULL);
-
-    // Pass |expectedFormat| to print a warning if the format differs from it.
-    // Using sp<> instead of const sp<>& because expectedFormat is likely the current mOutputFormat
-    // which will get updated inside.
-    void onOutputFormatChanged(sp<const AMessage> expectedFormat = NULL);
-    void addKeyFormatChangesToRenderBufferNotification(sp<AMessage> &notify);
-    void sendFormatChange();
-
-    status_t getPortFormat(OMX_U32 portIndex, sp<AMessage> &notify);
-
-    void signalError(
-            OMX_ERRORTYPE error = OMX_ErrorUndefined,
-            status_t internalError = UNKNOWN_ERROR);
-
-    static bool describeDefaultColorFormat(DescribeColorFormat2Params &describeParams);
-    static bool describeColorFormat(
-        const sp<IOMX> &omx, IOMX::node_id node,
-        DescribeColorFormat2Params &describeParams);
-
-    status_t requestIDRFrame();
-    status_t setParameters(const sp<AMessage> &params);
-
-    // Send EOS on input stream.
-    void onSignalEndOfInputStream();
-
-    DISALLOW_EVIL_CONSTRUCTORS(ACodec);
-};
-
-}  // namespace android
-
-#endif  // A_CODEC_H_
diff --git a/include/media/stagefright/AudioSource.h b/include/media/stagefright/AudioSource.h
deleted file mode 100644
index 2ec89a4..0000000
--- a/include/media/stagefright/AudioSource.h
+++ /dev/null
@@ -1,115 +0,0 @@
-/*
- * Copyright (C) 2009 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef AUDIO_SOURCE_H_
-
-#define AUDIO_SOURCE_H_
-
-#include <media/AudioRecord.h>
-#include <media/AudioSystem.h>
-#include <media/stagefright/MediaSource.h>
-#include <media/stagefright/MediaBuffer.h>
-#include <utils/List.h>
-
-#include <system/audio.h>
-
-namespace android {
-
-class AudioRecord;
-
-struct AudioSource : public MediaSource, public MediaBufferObserver {
-    // Note that the "channels" parameter _is_ the number of channels,
-    // _not_ a bitmask of audio_channels_t constants.
-    AudioSource(
-            audio_source_t inputSource,
-            const String16 &opPackageName,
-            uint32_t sampleRate,
-            uint32_t channels,
-            uint32_t outSampleRate = 0,
-            uid_t uid = -1,
-            pid_t pid = -1);
-
-    status_t initCheck() const;
-
-    virtual status_t start(MetaData *params = NULL);
-    virtual status_t stop() { return reset(); }
-    virtual sp<MetaData> getFormat();
-
-    // Returns the maximum amplitude since last call.
-    int16_t getMaxAmplitude();
-
-    virtual status_t read(
-            MediaBuffer **buffer, const ReadOptions *options = NULL);
-
-    status_t dataCallback(const AudioRecord::Buffer& buffer);
-    virtual void signalBufferReturned(MediaBuffer *buffer);
-
-protected:
-    virtual ~AudioSource();
-
-private:
-    enum {
-        kMaxBufferSize = 2048,
-
-        // After the initial mute, we raise the volume linearly
-        // over kAutoRampDurationUs.
-        kAutoRampDurationUs = 300000,
-
-        // This is the initial mute duration to suppress
-        // the video recording signal tone
-        kAutoRampStartUs = 0,
-    };
-
-    Mutex mLock;
-    Condition mFrameAvailableCondition;
-    Condition mFrameEncodingCompletionCondition;
-
-    sp<AudioRecord> mRecord;
-    status_t mInitCheck;
-    bool mStarted;
-    int32_t mSampleRate;
-    int32_t mOutSampleRate;
-
-    bool mTrackMaxAmplitude;
-    int64_t mStartTimeUs;
-    int16_t mMaxAmplitude;
-    int64_t mPrevSampleTimeUs;
-    int64_t mInitialReadTimeUs;
-    int64_t mNumFramesReceived;
-    int64_t mNumClientOwnedBuffers;
-
-    List<MediaBuffer * > mBuffersReceived;
-
-    void trackMaxAmplitude(int16_t *data, int nSamples);
-
-    // This is used to raise the volume from mute to the
-    // actual level linearly.
-    void rampVolume(
-        int32_t startFrame, int32_t rampDurationFrames,
-        uint8_t *data,   size_t bytes);
-
-    void queueInputBuffer_l(MediaBuffer *buffer, int64_t timeUs);
-    void releaseQueuedFrames_l();
-    void waitOutstandingEncodingFrames_l();
-    status_t reset();
-
-    AudioSource(const AudioSource &);
-    AudioSource &operator=(const AudioSource &);
-};
-
-}  // namespace android
-
-#endif  // AUDIO_SOURCE_H_
diff --git a/include/media/stagefright/CodecBase.h b/include/media/stagefright/CodecBase.h
deleted file mode 100644
index e057075..0000000
--- a/include/media/stagefright/CodecBase.h
+++ /dev/null
@@ -1,118 +0,0 @@
-/*
- * Copyright (C) 2014 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef CODEC_BASE_H_
-
-#define CODEC_BASE_H_
-
-#include <stdint.h>
-
-#define STRINGIFY_ENUMS
-
-#include <media/IOMX.h>
-#include <media/MediaCodecInfo.h>
-#include <media/stagefright/foundation/AHandler.h>
-#include <media/stagefright/foundation/ColorUtils.h>
-#include <media/hardware/HardwareAPI.h>
-
-#include <utils/NativeHandle.h>
-
-#include <system/graphics.h>
-
-namespace android {
-
-struct ABuffer;
-struct PersistentSurface;
-
-struct CodecBase : public AHandler, /* static */ ColorUtils {
-    enum {
-        kWhatFillThisBuffer      = 'fill',
-        kWhatDrainThisBuffer     = 'drai',
-        kWhatEOS                 = 'eos ',
-        kWhatShutdownCompleted   = 'scom',
-        kWhatFlushCompleted      = 'fcom',
-        kWhatOutputFormatChanged = 'outC',
-        kWhatError               = 'erro',
-        kWhatComponentAllocated  = 'cAll',
-        kWhatComponentConfigured = 'cCon',
-        kWhatInputSurfaceCreated = 'isfc',
-        kWhatInputSurfaceAccepted = 'isfa',
-        kWhatSignaledInputEOS    = 'seos',
-        kWhatBuffersAllocated    = 'allc',
-        kWhatOutputFramesRendered = 'outR',
-    };
-
-    enum {
-        kMaxCodecBufferSize = 8192 * 4096 * 4, // 8K RGBA
-    };
-
-    virtual void setNotificationMessage(const sp<AMessage> &msg) = 0;
-
-    virtual void initiateAllocateComponent(const sp<AMessage> &msg) = 0;
-    virtual void initiateConfigureComponent(const sp<AMessage> &msg) = 0;
-    virtual void initiateCreateInputSurface() = 0;
-    virtual void initiateSetInputSurface(
-            const sp<PersistentSurface> &surface) = 0;
-    virtual void initiateStart() = 0;
-    virtual void initiateShutdown(bool keepComponentAllocated = false) = 0;
-
-    // require an explicit message handler
-    virtual void onMessageReceived(const sp<AMessage> &msg) = 0;
-
-    virtual status_t queryCapabilities(
-            const AString& /*name*/, const AString& /*mime*/, bool /*isEncoder*/,
-            sp<MediaCodecInfo::Capabilities>* /*caps*/ /* nonnull */) { return INVALID_OPERATION; }
-
-    virtual status_t setSurface(const sp<Surface>& /*surface*/) { return INVALID_OPERATION; }
-
-    virtual void signalFlush() = 0;
-    virtual void signalResume() = 0;
-
-    virtual void signalRequestIDRFrame() = 0;
-    virtual void signalSetParameters(const sp<AMessage> &msg) = 0;
-    virtual void signalEndOfInputStream() = 0;
-
-    struct PortDescription : public RefBase {
-        virtual size_t countBuffers() = 0;
-        virtual IOMX::buffer_id bufferIDAt(size_t index) const = 0;
-        virtual sp<ABuffer> bufferAt(size_t index) const = 0;
-        virtual sp<NativeHandle> handleAt(size_t /*index*/) const { return NULL; };
-        virtual sp<RefBase> memRefAt(size_t /*index*/) const { return NULL; }
-
-    protected:
-        PortDescription();
-        virtual ~PortDescription();
-
-    private:
-        DISALLOW_EVIL_CONSTRUCTORS(PortDescription);
-    };
-
-    /*
-     * Codec-related defines
-     */
-
-protected:
-    CodecBase();
-    virtual ~CodecBase();
-
-private:
-    DISALLOW_EVIL_CONSTRUCTORS(CodecBase);
-};
-
-}  // namespace android
-
-#endif  // CODEC_BASE_H_
-
diff --git a/include/media/stagefright/DataSource.h b/include/media/stagefright/DataSource.h
deleted file mode 100644
index 052b9b7..0000000
--- a/include/media/stagefright/DataSource.h
+++ /dev/null
@@ -1,191 +0,0 @@
-/*
- * Copyright (C) 2009 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef DATA_SOURCE_H_
-
-#define DATA_SOURCE_H_
-
-#include <sys/types.h>
-#include <media/stagefright/foundation/ADebug.h>
-#include <media/stagefright/MediaErrors.h>
-#include <utils/Errors.h>
-#include <utils/KeyedVector.h>
-#include <utils/List.h>
-#include <utils/RefBase.h>
-#include <utils/threads.h>
-#include <drm/DrmManagerClient.h>
-
-namespace android {
-
-struct AMessage;
-struct AString;
-class  IDataSource;
-struct IMediaHTTPService;
-class String8;
-struct HTTPBase;
-
-class DataSource : public RefBase {
-public:
-    enum Flags {
-        kWantsPrefetching      = 1,
-        kStreamedFromLocalHost = 2,
-        kIsCachingDataSource   = 4,
-        kIsHTTPBasedSource     = 8,
-    };
-
-    static sp<DataSource> CreateFromURI(
-            const sp<IMediaHTTPService> &httpService,
-            const char *uri,
-            const KeyedVector<String8, String8> *headers = NULL,
-            String8 *contentType = NULL,
-            HTTPBase *httpSource = NULL);
-
-    static sp<DataSource> CreateMediaHTTP(const sp<IMediaHTTPService> &httpService);
-    static sp<DataSource> CreateFromIDataSource(const sp<IDataSource> &source);
-
-    DataSource() {}
-
-    virtual status_t initCheck() const = 0;
-
-    // Returns the number of bytes read, or -1 on failure. It's not an error if
-    // this returns zero; it just means the given offset is equal to, or
-    // beyond, the end of the source.
-    virtual ssize_t readAt(off64_t offset, void *data, size_t size) = 0;
-
-    // Convenience methods:
-    bool getUInt16(off64_t offset, uint16_t *x);
-    bool getUInt24(off64_t offset, uint32_t *x); // 3 byte int, returned as a 32-bit int
-    bool getUInt32(off64_t offset, uint32_t *x);
-    bool getUInt64(off64_t offset, uint64_t *x);
-
-    // Reads in "count" entries of type T into vector *x.
-    // Returns true if "count" entries can be read.
-    // If fewer than "count" entries can be read, return false. In this case,
-    // the output vector *x will still have those entries that were read. Call
-    // x->size() to obtain the number of entries read.
-    // The optional parameter chunkSize specifies how many entries should be
-    // read from the data source at one time into a temporary buffer. Increasing
-    // chunkSize can improve the performance at the cost of extra memory usage.
-    // The default value for chunkSize is set to read at least 4k bytes at a
-    // time, depending on sizeof(T).
-    template <typename T>
-    bool getVector(off64_t offset, Vector<T>* x, size_t count,
-                   size_t chunkSize = (4095 / sizeof(T)) + 1);
-
-    // May return ERROR_UNSUPPORTED.
-    virtual status_t getSize(off64_t *size);
-
-    virtual uint32_t flags() {
-        return 0;
-    }
-
-    virtual String8 toString() {
-        return String8("<unspecified>");
-    }
-
-    virtual status_t reconnectAtOffset(off64_t /*offset*/) {
-        return ERROR_UNSUPPORTED;
-    }
-
-    ////////////////////////////////////////////////////////////////////////////
-
-    bool sniff(String8 *mimeType, float *confidence, sp<AMessage> *meta);
-
-    // The sniffer can optionally fill in "meta" with an AMessage containing
-    // a dictionary of values that helps the corresponding extractor initialize
-    // its state without duplicating effort already exerted by the sniffer.
-    typedef bool (*SnifferFunc)(
-            const sp<DataSource> &source, String8 *mimeType,
-            float *confidence, sp<AMessage> *meta);
-
-    static void RegisterDefaultSniffers();
-
-    // for DRM
-    virtual sp<DecryptHandle> DrmInitialization(const char * /*mime*/ = NULL) {
-        return NULL;
-    }
-    virtual void getDrmInfo(sp<DecryptHandle> &/*handle*/, DrmManagerClient ** /*client*/) {};
-
-    virtual String8 getUri() {
-        return String8();
-    }
-
-    virtual String8 getMIMEType() const;
-
-    virtual void close() {};
-
-protected:
-    virtual ~DataSource() {}
-
-private:
-    static Mutex gSnifferMutex;
-    static List<SnifferFunc> gSniffers;
-    static bool gSniffersRegistered;
-
-    static void RegisterSniffer_l(SnifferFunc func);
-
-    DataSource(const DataSource &);
-    DataSource &operator=(const DataSource &);
-};
-
-template <typename T>
-bool DataSource::getVector(off64_t offset, Vector<T>* x, size_t count,
-                           size_t chunkSize)
-{
-    x->clear();
-    if (chunkSize == 0) {
-        return false;
-    }
-    if (count == 0) {
-        return true;
-    }
-
-    T tmp[chunkSize];
-    ssize_t numBytesRead;
-    size_t numBytesPerChunk = chunkSize * sizeof(T);
-    size_t i;
-
-    for (i = 0; i + chunkSize < count; i += chunkSize) {
-        // This loops is executed when more than chunkSize records need to be
-        // read.
-        numBytesRead = this->readAt(offset, (void*)&tmp, numBytesPerChunk);
-        if (numBytesRead == -1) { // If readAt() returns -1, there is an error.
-            return false;
-        }
-        if (numBytesRead < numBytesPerChunk) {
-            // This case is triggered when the stream ends before the whole
-            // chunk is read.
-            x->appendArray(tmp, (size_t)numBytesRead / sizeof(T));
-            return false;
-        }
-        x->appendArray(tmp, chunkSize);
-        offset += numBytesPerChunk;
-    }
-
-    // There are (count - i) more records to read.
-    // Right now, (count - i) <= chunkSize.
-    // We do the same thing as above, but with chunkSize replaced by count - i.
-    numBytesRead = this->readAt(offset, (void*)&tmp, (count - i) * sizeof(T));
-    if (numBytesRead == -1) {
-        return false;
-    }
-    x->appendArray(tmp, (size_t)numBytesRead / sizeof(T));
-    return x->size() == count;
-}
-
-}  // namespace android
-
-#endif  // DATA_SOURCE_H_
diff --git a/include/media/stagefright/FileSource.h b/include/media/stagefright/FileSource.h
deleted file mode 100644
index b6349e0..0000000
--- a/include/media/stagefright/FileSource.h
+++ /dev/null
@@ -1,76 +0,0 @@
-/*
- * Copyright (C) 2009 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef FILE_SOURCE_H_
-
-#define FILE_SOURCE_H_
-
-#include <stdio.h>
-
-#include <media/stagefright/DataSource.h>
-#include <media/stagefright/MediaErrors.h>
-#include <utils/threads.h>
-#include <drm/DrmManagerClient.h>
-
-namespace android {
-
-class FileSource : public DataSource {
-public:
-    FileSource(const char *filename);
-    // FileSource takes ownership and will close the fd
-    FileSource(int fd, int64_t offset, int64_t length);
-
-    virtual status_t initCheck() const;
-
-    virtual ssize_t readAt(off64_t offset, void *data, size_t size);
-
-    virtual status_t getSize(off64_t *size);
-
-    virtual sp<DecryptHandle> DrmInitialization(const char *mime);
-
-    virtual void getDrmInfo(sp<DecryptHandle> &handle, DrmManagerClient **client);
-
-    virtual String8 toString() {
-        return mName;
-    }
-
-protected:
-    virtual ~FileSource();
-
-private:
-    int mFd;
-    int64_t mOffset;
-    int64_t mLength;
-    Mutex mLock;
-    String8 mName;
-
-    /*for DRM*/
-    sp<DecryptHandle> mDecryptHandle;
-    DrmManagerClient *mDrmManagerClient;
-    int64_t mDrmBufOffset;
-    ssize_t mDrmBufSize;
-    unsigned char *mDrmBuf;
-
-    ssize_t readAtDRM(off64_t offset, void *data, size_t size);
-
-    FileSource(const FileSource &);
-    FileSource &operator=(const FileSource &);
-};
-
-}  // namespace android
-
-#endif  // FILE_SOURCE_H_
-
diff --git a/include/media/stagefright/FrameRenderTracker.h b/include/media/stagefright/FrameRenderTracker.h
deleted file mode 100644
index 327d260..0000000
--- a/include/media/stagefright/FrameRenderTracker.h
+++ /dev/null
@@ -1,143 +0,0 @@
-/*
- * Copyright 2015 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef FRAME_RENDER_TRACKER_H_
-
-#define FRAME_RENDER_TRACKER_H_
-
-#include <utils/RefBase.h>
-#include <utils/Timers.h>
-#include <system/window.h>
-
-#include <media/stagefright/foundation/ADebug.h>
-#include <media/stagefright/foundation/AString.h>
-
-#include <list>
-
-namespace android {
-
-class Fence;
-class GraphicBuffer;
-
-struct FrameRenderTracker {
-    // Tracks the render information about a frame. Frames go through several states while
-    // the render information is tracked:
-    //
-    // 1. queued frame: mMediaTime and mGraphicBuffer are set for the frame. mFence is the
-    // queue fence (read fence). mIndex is negative, and mRenderTimeNs is invalid.
-    // Key characteristics: mFence is not NULL and mIndex is negative.
-    //
-    // 2. dequeued frame: mFence is updated with the dequeue fence (write fence). mIndex is set.
-    // Key characteristics: mFence is not NULL and mIndex is non-negative. mRenderTime is still
-    // invalid.
-    //
-    // 3. rendered frame or frame: mFence is cleared, mRenderTimeNs is set.
-    // Key characteristics: mFence is NULL.
-    //
-    struct Info {
-        // set by client during onFrameQueued or onFrameRendered
-        int64_t getMediaTimeUs() const  { return mMediaTimeUs; }
-
-        // -1 if frame is not yet rendered
-        nsecs_t getRenderTimeNs() const { return mRenderTimeNs; }
-
-        // set by client during updateRenderInfoForDequeuedBuffer; -1 otherwise
-        ssize_t getIndex() const        { return mIndex; }
-
-        // creates information for a queued frame
-        Info(int64_t mediaTimeUs, const sp<GraphicBuffer> &graphicBuffer, const sp<Fence> &fence)
-            : mMediaTimeUs(mediaTimeUs),
-              mRenderTimeNs(-1),
-              mIndex(-1),
-              mGraphicBuffer(graphicBuffer),
-              mFence(fence) {
-        }
-
-        // creates information for a frame rendered on a tunneled surface
-        Info(int64_t mediaTimeUs, nsecs_t renderTimeNs)
-            : mMediaTimeUs(mediaTimeUs),
-              mRenderTimeNs(renderTimeNs),
-              mIndex(-1),
-              mGraphicBuffer(NULL),
-              mFence(NULL) {
-        }
-
-    private:
-        int64_t mMediaTimeUs;
-        nsecs_t mRenderTimeNs;
-        ssize_t mIndex;         // to be used by client
-        sp<GraphicBuffer> mGraphicBuffer;
-        sp<Fence> mFence;
-
-        friend struct FrameRenderTracker;
-    };
-
-    FrameRenderTracker();
-
-    void setComponentName(const AString &componentName);
-
-    // clears all tracked frames, and resets last render time
-    void clear(nsecs_t lastRenderTimeNs);
-
-    // called when |graphicBuffer| corresponding to |mediaTimeUs| is
-    // queued to the output surface using |fence|.
-    void onFrameQueued(
-            int64_t mediaTimeUs, const sp<GraphicBuffer> &graphicBuffer, const sp<Fence> &fence);
-
-    // Called when we have dequeued a buffer |buf| from the native window to track render info.
-    // |fenceFd| is the dequeue fence, and |index| is a positive buffer ID to be usable by the
-    // client to track this render info among the dequeued buffers.
-    // Returns pointer to the tracked info, or NULL if buffer is not tracked or if |index|
-    // is negative.
-    Info *updateInfoForDequeuedBuffer(ANativeWindowBuffer *buf, int fenceFd, int index);
-
-    // called when tunneled codec signals frame rendered event
-    // returns BAD_VALUE if systemNano is not monotonic. Otherwise, returns OK.
-    status_t onFrameRendered(int64_t mediaTimeUs, nsecs_t systemNano);
-
-    // Checks to see if any frames have rendered up until |until|. If |until| is NULL or not a
-    // tracked info, this method searches the entire render queue.
-    // Returns list of rendered frames up-until the frame pointed to by |until| or the first
-    // unrendered frame, as well as any dropped frames (those with invalid fence) up-until |until|.
-    // These frames are removed from the render queue.
-    // If |dropIncomplete| is true, unrendered frames up-until |until| will also be dropped from the
-    // queue, allowing all rendered framed up till then to be notified of.
-    // (This will effectively clear the render queue up-until (and including) |until|.)
-    std::list<Info> checkFencesAndGetRenderedFrames(const Info *until, bool dropIncomplete);
-
-    // Stop tracking a queued frame (e.g. if the frame has been discarded). If |info| is NULL or is
-    // not tracked, this method is a no-op. If |index| is specified, all indices larger that |index|
-    // are decremented. This is useful if the untracked frame is deleted from the frame vector.
-    void untrackFrame(const Info *info, ssize_t index = SSIZE_MAX);
-
-    void dumpRenderQueue() const;
-
-    virtual ~FrameRenderTracker();
-
-private:
-
-    // Render information for buffers. Regular surface buffers are queued in the order of
-    // rendering. Tunneled buffers are queued in the order of receipt.
-    std::list<Info> mRenderQueue;
-    nsecs_t mLastRenderTimeNs;
-    AString mComponentName;
-
-    DISALLOW_EVIL_CONSTRUCTORS(FrameRenderTracker);
-};
-
-}  // namespace android
-
-#endif  // FRAME_RENDER_TRACKER_H_
diff --git a/include/media/stagefright/MPEG4Writer.h b/include/media/stagefright/MPEG4Writer.h
deleted file mode 100644
index a8ba095..0000000
--- a/include/media/stagefright/MPEG4Writer.h
+++ /dev/null
@@ -1,224 +0,0 @@
-/*
- * Copyright (C) 2009 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef MPEG4_WRITER_H_
-
-#define MPEG4_WRITER_H_
-
-#include <stdio.h>
-
-#include <media/IMediaSource.h>
-#include <media/stagefright/MediaWriter.h>
-#include <utils/List.h>
-#include <utils/threads.h>
-
-namespace android {
-
-struct AMessage;
-class MediaBuffer;
-class MetaData;
-
-class MPEG4Writer : public MediaWriter {
-public:
-    MPEG4Writer(int fd);
-
-    // Limitations
-    // 1. No more than 2 tracks can be added
-    // 2. Only video or audio source can be added
-    // 3. No more than one video and/or one audio source can be added.
-    virtual status_t addSource(const sp<IMediaSource> &source);
-
-    // Returns INVALID_OPERATION if there is no source or track.
-    virtual status_t start(MetaData *param = NULL);
-    virtual status_t stop() { return reset(); }
-    virtual status_t pause();
-    virtual bool reachedEOS();
-    virtual status_t dump(int fd, const Vector<String16>& args);
-
-    void beginBox(const char *fourcc);
-    void beginBox(uint32_t id);
-    void writeInt8(int8_t x);
-    void writeInt16(int16_t x);
-    void writeInt32(int32_t x);
-    void writeInt64(int64_t x);
-    void writeCString(const char *s);
-    void writeFourcc(const char *fourcc);
-    void write(const void *data, size_t size);
-    inline size_t write(const void *ptr, size_t size, size_t nmemb);
-    void endBox();
-    uint32_t interleaveDuration() const { return mInterleaveDurationUs; }
-    status_t setInterleaveDuration(uint32_t duration);
-    int32_t getTimeScale() const { return mTimeScale; }
-
-    status_t setGeoData(int latitudex10000, int longitudex10000);
-    status_t setCaptureRate(float captureFps);
-    status_t setTemporalLayerCount(uint32_t layerCount);
-    virtual void setStartTimeOffsetMs(int ms) { mStartTimeOffsetMs = ms; }
-    virtual int32_t getStartTimeOffsetMs() const { return mStartTimeOffsetMs; }
-
-protected:
-    virtual ~MPEG4Writer();
-
-private:
-    class Track;
-
-    int  mFd;
-    status_t mInitCheck;
-    bool mIsRealTimeRecording;
-    bool mUse4ByteNalLength;
-    bool mUse32BitOffset;
-    bool mIsFileSizeLimitExplicitlyRequested;
-    bool mPaused;
-    bool mStarted;  // Writer thread + track threads started successfully
-    bool mWriterThreadStarted;  // Only writer thread started successfully
-    off64_t mOffset;
-    off_t mMdatOffset;
-    uint8_t *mMoovBoxBuffer;
-    off64_t mMoovBoxBufferOffset;
-    bool  mWriteMoovBoxToMemory;
-    off64_t mFreeBoxOffset;
-    bool mStreamableFile;
-    off64_t mEstimatedMoovBoxSize;
-    off64_t mMoovExtraSize;
-    uint32_t mInterleaveDurationUs;
-    int32_t mTimeScale;
-    int64_t mStartTimestampUs;
-    int mLatitudex10000;
-    int mLongitudex10000;
-    bool mAreGeoTagsAvailable;
-    int32_t mStartTimeOffsetMs;
-
-    Mutex mLock;
-
-    List<Track *> mTracks;
-
-    List<off64_t> mBoxes;
-
-    sp<AMessage> mMetaKeys;
-
-    void setStartTimestampUs(int64_t timeUs);
-    int64_t getStartTimestampUs();  // Not const
-    status_t startTracks(MetaData *params);
-    size_t numTracks();
-    int64_t estimateMoovBoxSize(int32_t bitRate);
-
-    struct Chunk {
-        Track               *mTrack;        // Owner
-        int64_t             mTimeStampUs;   // Timestamp of the 1st sample
-        List<MediaBuffer *> mSamples;       // Sample data
-
-        // Convenient constructor
-        Chunk(): mTrack(NULL), mTimeStampUs(0) {}
-
-        Chunk(Track *track, int64_t timeUs, List<MediaBuffer *> samples)
-            : mTrack(track), mTimeStampUs(timeUs), mSamples(samples) {
-        }
-
-    };
-    struct ChunkInfo {
-        Track               *mTrack;        // Owner
-        List<Chunk>         mChunks;        // Remaining chunks to be written
-
-        // Previous chunk timestamp that has been written
-        int64_t mPrevChunkTimestampUs;
-
-        // Max time interval between neighboring chunks
-        int64_t mMaxInterChunkDurUs;
-
-    };
-
-    bool            mIsFirstChunk;
-    volatile bool   mDone;                  // Writer thread is done?
-    pthread_t       mThread;                // Thread id for the writer
-    List<ChunkInfo> mChunkInfos;            // Chunk infos
-    Condition       mChunkReadyCondition;   // Signal that chunks are available
-
-    // Writer thread handling
-    status_t startWriterThread();
-    void stopWriterThread();
-    static void *ThreadWrapper(void *me);
-    void threadFunc();
-
-    // Buffer a single chunk to be written out later.
-    void bufferChunk(const Chunk& chunk);
-
-    // Write all buffered chunks from all tracks
-    void writeAllChunks();
-
-    // Retrieve the proper chunk to write if there is one
-    // Return true if a chunk is found; otherwise, return false.
-    bool findChunkToWrite(Chunk *chunk);
-
-    // Actually write the given chunk to the file.
-    void writeChunkToFile(Chunk* chunk);
-
-    // Adjust other track media clock (presumably wall clock)
-    // based on audio track media clock with the drift time.
-    int64_t mDriftTimeUs;
-    void setDriftTimeUs(int64_t driftTimeUs);
-    int64_t getDriftTimeUs();
-
-    // Return whether the nal length is 4 bytes or 2 bytes
-    // Only makes sense for H.264/AVC
-    bool useNalLengthFour();
-
-    // Return whether the writer is used for real time recording.
-    // In real time recording mode, new samples will be allowed to buffered into
-    // chunks in higher priority thread, even though the file writer has not
-    // drained the chunks yet.
-    // By default, real time recording is on.
-    bool isRealTimeRecording() const;
-
-    void lock();
-    void unlock();
-
-    // Acquire lock before calling these methods
-    off64_t addSample_l(MediaBuffer *buffer);
-    off64_t addLengthPrefixedSample_l(MediaBuffer *buffer);
-    off64_t addMultipleLengthPrefixedSamples_l(MediaBuffer *buffer);
-
-    bool exceedsFileSizeLimit();
-    bool use32BitFileOffset() const;
-    bool exceedsFileDurationLimit();
-    bool isFileStreamable() const;
-    void trackProgressStatus(size_t trackId, int64_t timeUs, status_t err = OK);
-    void writeCompositionMatrix(int32_t degrees);
-    void writeMvhdBox(int64_t durationUs);
-    void writeMoovBox(int64_t durationUs);
-    void writeFtypBox(MetaData *param);
-    void writeUdtaBox();
-    void writeGeoDataBox();
-    void writeLatitude(int degreex10000);
-    void writeLongitude(int degreex10000);
-
-    void addDeviceMeta();
-    void writeHdlr();
-    void writeKeys();
-    void writeIlst();
-    void writeMetaBox();
-    void sendSessionSummary();
-    void release();
-    status_t reset();
-
-    static uint32_t getMpeg4Time();
-
-    MPEG4Writer(const MPEG4Writer &);
-    MPEG4Writer &operator=(const MPEG4Writer &);
-};
-
-}  // namespace android
-
-#endif  // MPEG4_WRITER_H_
diff --git a/include/media/stagefright/MediaCodec.h b/include/media/stagefright/MediaCodec.h
deleted file mode 100644
index d18aad8..0000000
--- a/include/media/stagefright/MediaCodec.h
+++ /dev/null
@@ -1,419 +0,0 @@
-/*
- * Copyright 2012, The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef MEDIA_CODEC_H_
-
-#define MEDIA_CODEC_H_
-
-#include <gui/IGraphicBufferProducer.h>
-#include <media/hardware/CryptoAPI.h>
-#include <media/MediaCodecInfo.h>
-#include <media/MediaResource.h>
-#include <media/stagefright/foundation/AHandler.h>
-#include <media/stagefright/FrameRenderTracker.h>
-#include <utils/Vector.h>
-
-namespace android {
-
-struct ABuffer;
-struct AMessage;
-struct AReplyToken;
-struct AString;
-struct CodecBase;
-class IBatteryStats;
-struct ICrypto;
-class IMemory;
-class MemoryDealer;
-class IResourceManagerClient;
-class IResourceManagerService;
-struct PersistentSurface;
-class SoftwareRenderer;
-class Surface;
-
-struct MediaCodec : public AHandler {
-    enum ConfigureFlags {
-        CONFIGURE_FLAG_ENCODE   = 1,
-    };
-
-    enum BufferFlags {
-        BUFFER_FLAG_SYNCFRAME   = 1,
-        BUFFER_FLAG_CODECCONFIG = 2,
-        BUFFER_FLAG_EOS         = 4,
-    };
-
-    enum {
-        CB_INPUT_AVAILABLE = 1,
-        CB_OUTPUT_AVAILABLE = 2,
-        CB_ERROR = 3,
-        CB_OUTPUT_FORMAT_CHANGED = 4,
-        CB_RESOURCE_RECLAIMED = 5,
-    };
-
-    static const pid_t kNoPid = -1;
-
-    static sp<MediaCodec> CreateByType(
-            const sp<ALooper> &looper, const AString &mime, bool encoder, status_t *err = NULL,
-            pid_t pid = kNoPid);
-
-    static sp<MediaCodec> CreateByComponentName(
-            const sp<ALooper> &looper, const AString &name, status_t *err = NULL,
-            pid_t pid = kNoPid);
-
-    static sp<PersistentSurface> CreatePersistentInputSurface();
-
-    // utility method to query capabilities
-    static status_t QueryCapabilities(
-            const AString &name, const AString &mime, bool isEncoder,
-            sp<MediaCodecInfo::Capabilities> *caps /* nonnull */);
-
-    status_t configure(
-            const sp<AMessage> &format,
-            const sp<Surface> &nativeWindow,
-            const sp<ICrypto> &crypto,
-            uint32_t flags);
-
-    status_t setCallback(const sp<AMessage> &callback);
-
-    status_t setOnFrameRenderedNotification(const sp<AMessage> &notify);
-
-    status_t createInputSurface(sp<IGraphicBufferProducer>* bufferProducer);
-
-    status_t setInputSurface(const sp<PersistentSurface> &surface);
-
-    status_t start();
-
-    // Returns to a state in which the component remains allocated but
-    // unconfigured.
-    status_t stop();
-
-    // Resets the codec to the INITIALIZED state.  Can be called after an error
-    // has occured to make the codec usable.
-    status_t reset();
-
-    // Client MUST call release before releasing final reference to this
-    // object.
-    status_t release();
-
-    status_t flush();
-
-    status_t queueInputBuffer(
-            size_t index,
-            size_t offset,
-            size_t size,
-            int64_t presentationTimeUs,
-            uint32_t flags,
-            AString *errorDetailMsg = NULL);
-
-    status_t queueSecureInputBuffer(
-            size_t index,
-            size_t offset,
-            const CryptoPlugin::SubSample *subSamples,
-            size_t numSubSamples,
-            const uint8_t key[16],
-            const uint8_t iv[16],
-            CryptoPlugin::Mode mode,
-            const CryptoPlugin::Pattern &pattern,
-            int64_t presentationTimeUs,
-            uint32_t flags,
-            AString *errorDetailMsg = NULL);
-
-    status_t dequeueInputBuffer(size_t *index, int64_t timeoutUs = 0ll);
-
-    status_t dequeueOutputBuffer(
-            size_t *index,
-            size_t *offset,
-            size_t *size,
-            int64_t *presentationTimeUs,
-            uint32_t *flags,
-            int64_t timeoutUs = 0ll);
-
-    status_t renderOutputBufferAndRelease(size_t index, int64_t timestampNs);
-    status_t renderOutputBufferAndRelease(size_t index);
-    status_t releaseOutputBuffer(size_t index);
-
-    status_t signalEndOfInputStream();
-
-    status_t getOutputFormat(sp<AMessage> *format) const;
-    status_t getInputFormat(sp<AMessage> *format) const;
-
-    status_t getWidevineLegacyBuffers(Vector<sp<ABuffer> > *buffers) const;
-
-    status_t getInputBuffers(Vector<sp<ABuffer> > *buffers) const;
-    status_t getOutputBuffers(Vector<sp<ABuffer> > *buffers) const;
-
-    status_t getOutputBuffer(size_t index, sp<ABuffer> *buffer);
-    status_t getOutputFormat(size_t index, sp<AMessage> *format);
-    status_t getInputBuffer(size_t index, sp<ABuffer> *buffer);
-
-    status_t setSurface(const sp<Surface> &nativeWindow);
-
-    status_t requestIDRFrame();
-
-    // Notification will be posted once there "is something to do", i.e.
-    // an input/output buffer has become available, a format change is
-    // pending, an error is pending.
-    void requestActivityNotification(const sp<AMessage> &notify);
-
-    status_t getName(AString *componentName) const;
-
-    status_t setParameters(const sp<AMessage> &params);
-
-    // Create a MediaCodec notification message from a list of rendered or dropped render infos
-    // by adding rendered frame information to a base notification message. Returns the number
-    // of frames that were rendered.
-    static size_t CreateFramesRenderedMessage(
-            const std::list<FrameRenderTracker::Info> &done, sp<AMessage> &msg);
-
-protected:
-    virtual ~MediaCodec();
-    virtual void onMessageReceived(const sp<AMessage> &msg);
-
-private:
-    // used by ResourceManagerClient
-    status_t reclaim(bool force = false);
-    friend struct ResourceManagerClient;
-
-private:
-    enum State {
-        UNINITIALIZED,
-        INITIALIZING,
-        INITIALIZED,
-        CONFIGURING,
-        CONFIGURED,
-        STARTING,
-        STARTED,
-        FLUSHING,
-        FLUSHED,
-        STOPPING,
-        RELEASING,
-    };
-
-    enum {
-        kPortIndexInput         = 0,
-        kPortIndexOutput        = 1,
-    };
-
-    enum {
-        kWhatInit                           = 'init',
-        kWhatConfigure                      = 'conf',
-        kWhatSetSurface                     = 'sSur',
-        kWhatCreateInputSurface             = 'cisf',
-        kWhatSetInputSurface                = 'sisf',
-        kWhatStart                          = 'strt',
-        kWhatStop                           = 'stop',
-        kWhatRelease                        = 'rele',
-        kWhatDequeueInputBuffer             = 'deqI',
-        kWhatQueueInputBuffer               = 'queI',
-        kWhatDequeueOutputBuffer            = 'deqO',
-        kWhatReleaseOutputBuffer            = 'relO',
-        kWhatSignalEndOfInputStream         = 'eois',
-        kWhatGetBuffers                     = 'getB',
-        kWhatFlush                          = 'flus',
-        kWhatGetOutputFormat                = 'getO',
-        kWhatGetInputFormat                 = 'getI',
-        kWhatDequeueInputTimedOut           = 'dITO',
-        kWhatDequeueOutputTimedOut          = 'dOTO',
-        kWhatCodecNotify                    = 'codc',
-        kWhatRequestIDRFrame                = 'ridr',
-        kWhatRequestActivityNotification    = 'racN',
-        kWhatGetName                        = 'getN',
-        kWhatSetParameters                  = 'setP',
-        kWhatSetCallback                    = 'setC',
-        kWhatSetNotification                = 'setN',
-    };
-
-    enum {
-        kFlagUsesSoftwareRenderer       = 1,
-        kFlagOutputFormatChanged        = 2,
-        kFlagOutputBuffersChanged       = 4,
-        kFlagStickyError                = 8,
-        kFlagDequeueInputPending        = 16,
-        kFlagDequeueOutputPending       = 32,
-        kFlagIsSecure                   = 64,
-        kFlagSawMediaServerDie          = 128,
-        kFlagIsEncoder                  = 256,
-        kFlagGatherCodecSpecificData    = 512,
-        kFlagIsAsync                    = 1024,
-        kFlagIsComponentAllocated       = 2048,
-        kFlagPushBlankBuffersOnShutdown = 4096,
-    };
-
-    struct BufferInfo {
-        uint32_t mBufferID;
-        sp<ABuffer> mData;
-        sp<NativeHandle> mNativeHandle;
-        sp<RefBase> mMemRef;
-        sp<ABuffer> mEncryptedData;
-        sp<IMemory> mSharedEncryptedBuffer;
-        sp<AMessage> mNotify;
-        sp<AMessage> mFormat;
-        bool mOwnedByClient;
-    };
-
-    struct ResourceManagerServiceProxy : public IBinder::DeathRecipient {
-        ResourceManagerServiceProxy(pid_t pid);
-        ~ResourceManagerServiceProxy();
-
-        void init();
-
-        // implements DeathRecipient
-        virtual void binderDied(const wp<IBinder>& /*who*/);
-
-        void addResource(
-                int64_t clientId,
-                const sp<IResourceManagerClient> &client,
-                const Vector<MediaResource> &resources);
-
-        void removeResource(int64_t clientId);
-
-        bool reclaimResource(const Vector<MediaResource> &resources);
-
-    private:
-        Mutex mLock;
-        sp<IResourceManagerService> mService;
-        pid_t mPid;
-    };
-
-    State mState;
-    bool mReleasedByResourceManager;
-    sp<ALooper> mLooper;
-    sp<ALooper> mCodecLooper;
-    sp<CodecBase> mCodec;
-    AString mComponentName;
-    sp<AReplyToken> mReplyID;
-    uint32_t mFlags;
-    status_t mStickyError;
-    sp<Surface> mSurface;
-    SoftwareRenderer *mSoftRenderer;
-
-    sp<AMessage> mOutputFormat;
-    sp<AMessage> mInputFormat;
-    sp<AMessage> mCallback;
-    sp<AMessage> mOnFrameRenderedNotification;
-    sp<MemoryDealer> mDealer;
-
-    sp<IResourceManagerClient> mResourceManagerClient;
-    sp<ResourceManagerServiceProxy> mResourceManagerService;
-
-    bool mBatteryStatNotified;
-    bool mIsVideo;
-    int32_t mVideoWidth;
-    int32_t mVideoHeight;
-    int32_t mRotationDegrees;
-
-    // initial create parameters
-    AString mInitName;
-    bool mInitNameIsType;
-    bool mInitIsEncoder;
-
-    // configure parameter
-    sp<AMessage> mConfigureMsg;
-
-    // Used only to synchronize asynchronous getBufferAndFormat
-    // across all the other (synchronous) buffer state change
-    // operations, such as de/queueIn/OutputBuffer, start and
-    // stop/flush/reset/release.
-    Mutex mBufferLock;
-
-    List<size_t> mAvailPortBuffers[2];
-    Vector<BufferInfo> mPortBuffers[2];
-
-    int32_t mDequeueInputTimeoutGeneration;
-    sp<AReplyToken> mDequeueInputReplyID;
-
-    int32_t mDequeueOutputTimeoutGeneration;
-    sp<AReplyToken> mDequeueOutputReplyID;
-
-    sp<ICrypto> mCrypto;
-
-    List<sp<ABuffer> > mCSD;
-
-    sp<AMessage> mActivityNotify;
-
-    bool mHaveInputSurface;
-    bool mHavePendingInputBuffers;
-
-    MediaCodec(const sp<ALooper> &looper, pid_t pid);
-
-    static sp<CodecBase> GetCodecBase(const AString &name, bool nameIsType = false);
-
-    static status_t PostAndAwaitResponse(
-            const sp<AMessage> &msg, sp<AMessage> *response);
-
-    void PostReplyWithError(const sp<AReplyToken> &replyID, int32_t err);
-
-    status_t init(const AString &name, bool nameIsType, bool encoder);
-
-    void setState(State newState);
-    void returnBuffersToCodec(bool isReclaim = false);
-    void returnBuffersToCodecOnPort(int32_t portIndex, bool isReclaim = false);
-    size_t updateBuffers(int32_t portIndex, const sp<AMessage> &msg);
-    status_t onQueueInputBuffer(const sp<AMessage> &msg);
-    status_t onReleaseOutputBuffer(const sp<AMessage> &msg);
-    ssize_t dequeuePortBuffer(int32_t portIndex);
-
-    status_t getBufferAndFormat(
-            size_t portIndex, size_t index,
-            sp<ABuffer> *buffer, sp<AMessage> *format);
-
-    bool handleDequeueInputBuffer(const sp<AReplyToken> &replyID, bool newRequest = false);
-    bool handleDequeueOutputBuffer(const sp<AReplyToken> &replyID, bool newRequest = false);
-    void cancelPendingDequeueOperations();
-
-    void extractCSD(const sp<AMessage> &format);
-    status_t queueCSDInputBuffer(size_t bufferIndex);
-
-    status_t handleSetSurface(const sp<Surface> &surface);
-    status_t connectToSurface(const sp<Surface> &surface);
-    status_t disconnectFromSurface();
-
-    void postActivityNotificationIfPossible();
-
-    void onInputBufferAvailable();
-    void onOutputBufferAvailable();
-    void onError(status_t err, int32_t actionCode, const char *detail = NULL);
-    void onOutputFormatChanged();
-
-    status_t onSetParameters(const sp<AMessage> &params);
-
-    status_t amendOutputFormatWithCodecSpecificData(const sp<ABuffer> &buffer);
-    void updateBatteryStat();
-    bool isExecuting() const;
-
-    uint64_t getGraphicBufferSize();
-    void addResource(MediaResource::Type type, MediaResource::SubType subtype, uint64_t value);
-
-    bool hasPendingBuffer(int portIndex);
-    bool hasPendingBuffer();
-
-    /* called to get the last codec error when the sticky flag is set.
-     * if no such codec error is found, returns UNKNOWN_ERROR.
-     */
-    inline status_t getStickyError() const {
-        return mStickyError != 0 ? mStickyError : UNKNOWN_ERROR;
-    }
-
-    inline void setStickyError(status_t err) {
-        mFlags |= kFlagStickyError;
-        mStickyError = err;
-    }
-
-    DISALLOW_EVIL_CONSTRUCTORS(MediaCodec);
-};
-
-}  // namespace android
-
-#endif  // MEDIA_CODEC_H_
diff --git a/include/media/stagefright/MediaCodecList.h b/include/media/stagefright/MediaCodecList.h
deleted file mode 100644
index 44dbde0..0000000
--- a/include/media/stagefright/MediaCodecList.h
+++ /dev/null
@@ -1,155 +0,0 @@
-/*
- * Copyright 2012, The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef MEDIA_CODEC_LIST_H_
-
-#define MEDIA_CODEC_LIST_H_
-
-#include <media/stagefright/foundation/ABase.h>
-#include <media/stagefright/foundation/AString.h>
-#include <media/IMediaCodecList.h>
-#include <media/IOMX.h>
-#include <media/MediaCodecInfo.h>
-
-#include <sys/types.h>
-#include <utils/Errors.h>
-#include <utils/KeyedVector.h>
-#include <utils/Vector.h>
-#include <utils/StrongPointer.h>
-
-namespace android {
-
-extern const char *kMaxEncoderInputBuffers;
-
-struct AMessage;
-
-struct MediaCodecList : public BnMediaCodecList {
-    static sp<IMediaCodecList> getInstance();
-
-    virtual ssize_t findCodecByType(
-            const char *type, bool encoder, size_t startIndex = 0) const;
-
-    virtual ssize_t findCodecByName(const char *name) const;
-
-    virtual size_t countCodecs() const;
-
-    virtual sp<MediaCodecInfo> getCodecInfo(size_t index) const {
-        if (index >= mCodecInfos.size()) {
-            ALOGE("b/24445127");
-            return NULL;
-        }
-        return mCodecInfos.itemAt(index);
-    }
-
-    virtual const sp<AMessage> getGlobalSettings() const;
-
-    // to be used by MediaPlayerService alone
-    static sp<IMediaCodecList> getLocalInstance();
-
-    // only to be used by getLocalInstance
-    static void *profilerThreadWrapper(void * /*arg*/);
-
-    // only to be used by MediaPlayerService
-    void parseTopLevelXMLFile(const char *path, bool ignore_errors = false);
-
-    enum Flags {
-        kPreferSoftwareCodecs   = 1,
-        kHardwareCodecsOnly     = 2,
-    };
-
-    static void findMatchingCodecs(
-            const char *mime,
-            bool createEncoder,
-            uint32_t flags,
-            Vector<AString> *matching);
-
-    static uint32_t getQuirksFor(const char *mComponentName);
-
-    static bool isSoftwareCodec(const AString &componentName);
-
-
-private:
-    class BinderDeathObserver : public IBinder::DeathRecipient {
-        void binderDied(const wp<IBinder> &the_late_who __unused);
-    };
-
-    static sp<BinderDeathObserver> sBinderDeathObserver;
-
-    enum Section {
-        SECTION_TOPLEVEL,
-        SECTION_SETTINGS,
-        SECTION_DECODERS,
-        SECTION_DECODER,
-        SECTION_DECODER_TYPE,
-        SECTION_ENCODERS,
-        SECTION_ENCODER,
-        SECTION_ENCODER_TYPE,
-        SECTION_INCLUDE,
-    };
-
-    static sp<IMediaCodecList> sCodecList;
-    static sp<IMediaCodecList> sRemoteList;
-
-    status_t mInitCheck;
-    Section mCurrentSection;
-    bool mUpdate;
-    Vector<Section> mPastSections;
-    int32_t mDepth;
-    AString mHrefBase;
-
-    sp<AMessage> mGlobalSettings;
-    KeyedVector<AString, CodecSettings> mOverrides;
-
-    Vector<sp<MediaCodecInfo> > mCodecInfos;
-    sp<MediaCodecInfo> mCurrentInfo;
-    sp<IOMX> mOMX;
-
-    MediaCodecList();
-    ~MediaCodecList();
-
-    status_t initCheck() const;
-    void parseXMLFile(const char *path);
-
-    static void StartElementHandlerWrapper(
-            void *me, const char *name, const char **attrs);
-
-    static void EndElementHandlerWrapper(void *me, const char *name);
-
-    void startElementHandler(const char *name, const char **attrs);
-    void endElementHandler(const char *name);
-
-    status_t includeXMLFile(const char **attrs);
-    status_t addSettingFromAttributes(const char **attrs);
-    status_t addMediaCodecFromAttributes(bool encoder, const char **attrs);
-    void addMediaCodec(bool encoder, const char *name, const char *type = NULL);
-
-    void setCurrentCodecInfo(bool encoder, const char *name, const char *type);
-
-    status_t addQuirk(const char **attrs);
-    status_t addTypeFromAttributes(const char **attrs);
-    status_t addLimit(const char **attrs);
-    status_t addFeature(const char **attrs);
-    void addType(const char *name);
-
-    status_t initializeCapabilities(const char *type);
-
-    DISALLOW_EVIL_CONSTRUCTORS(MediaCodecList);
-};
-
-}  // namespace android
-
-#endif  // MEDIA_CODEC_LIST_H_
-
diff --git a/include/media/stagefright/MediaCodecSource.h b/include/media/stagefright/MediaCodecSource.h
deleted file mode 100644
index 18b1955..0000000
--- a/include/media/stagefright/MediaCodecSource.h
+++ /dev/null
@@ -1,152 +0,0 @@
-/*
- * Copyright (C) 2014 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef MediaCodecSource_H_
-#define MediaCodecSource_H_
-
-#include <media/stagefright/foundation/ABase.h>
-#include <media/stagefright/foundation/AHandlerReflector.h>
-#include <media/stagefright/foundation/Mutexed.h>
-#include <media/stagefright/MediaSource.h>
-
-#include <gui/IGraphicBufferConsumer.h>
-
-namespace android {
-
-struct ALooper;
-struct AMessage;
-struct AReplyToken;
-class IGraphicBufferProducer;
-struct MediaCodec;
-class MetaData;
-
-struct MediaCodecSource : public MediaSource,
-                          public MediaBufferObserver {
-    enum FlagBits {
-        FLAG_USE_SURFACE_INPUT      = 1,
-        FLAG_PREFER_SOFTWARE_CODEC  = 4,  // used for testing only
-    };
-
-    static sp<MediaCodecSource> Create(
-            const sp<ALooper> &looper,
-            const sp<AMessage> &format,
-            const sp<MediaSource> &source,
-            const sp<IGraphicBufferConsumer> &consumer = NULL,
-            uint32_t flags = 0);
-
-    bool isVideo() const { return mIsVideo; }
-    sp<IGraphicBufferProducer> getGraphicBufferProducer();
-    status_t setInputBufferTimeOffset(int64_t timeOffsetUs);
-    int64_t getFirstSampleSystemTimeUs();
-
-    // MediaSource
-    virtual status_t start(MetaData *params = NULL);
-    virtual status_t stop();
-    virtual status_t pause();
-    virtual sp<MetaData> getFormat();
-    virtual status_t read(
-            MediaBuffer **buffer,
-            const ReadOptions *options = NULL);
-
-    // MediaBufferObserver
-    virtual void signalBufferReturned(MediaBuffer *buffer);
-
-    // for AHandlerReflector
-    void onMessageReceived(const sp<AMessage> &msg);
-
-protected:
-    virtual ~MediaCodecSource();
-
-private:
-    struct Puller;
-
-    enum {
-        kWhatPullerNotify,
-        kWhatEncoderActivity,
-        kWhatStart,
-        kWhatStop,
-        kWhatPause,
-        kWhatSetInputBufferTimeOffset,
-        kWhatGetFirstSampleSystemTimeUs,
-        kWhatStopStalled,
-    };
-
-    MediaCodecSource(
-            const sp<ALooper> &looper,
-            const sp<AMessage> &outputFormat,
-            const sp<MediaSource> &source,
-            const sp<IGraphicBufferConsumer> &consumer,
-            uint32_t flags = 0);
-
-    status_t onStart(MetaData *params);
-    void onPause();
-    status_t init();
-    status_t initEncoder();
-    void releaseEncoder();
-    status_t feedEncoderInputBuffers();
-    void suspend();
-    void resume(int64_t skipFramesBeforeUs = -1ll);
-    void signalEOS(status_t err = ERROR_END_OF_STREAM);
-    bool reachedEOS();
-    status_t postSynchronouslyAndReturnError(const sp<AMessage> &msg);
-
-    sp<ALooper> mLooper;
-    sp<ALooper> mCodecLooper;
-    sp<AHandlerReflector<MediaCodecSource> > mReflector;
-    sp<AMessage> mOutputFormat;
-    Mutexed<sp<MetaData>> mMeta;
-    sp<Puller> mPuller;
-    sp<MediaCodec> mEncoder;
-    uint32_t mFlags;
-    List<sp<AReplyToken>> mStopReplyIDQueue;
-    bool mIsVideo;
-    bool mStarted;
-    bool mStopping;
-    bool mDoMoreWorkPending;
-    bool mSetEncoderFormat;
-    int32_t mEncoderFormat;
-    int32_t mEncoderDataSpace;
-    sp<AMessage> mEncoderActivityNotify;
-    sp<IGraphicBufferProducer> mGraphicBufferProducer;
-    sp<IGraphicBufferConsumer> mGraphicBufferConsumer;
-    List<MediaBuffer *> mInputBufferQueue;
-    List<size_t> mAvailEncoderInputIndices;
-    List<int64_t> mDecodingTimeQueue; // decoding time (us) for video
-    int64_t mInputBufferTimeOffsetUs;
-    int64_t mFirstSampleSystemTimeUs;
-    bool mPausePending;
-
-    // audio drift time
-    int64_t mFirstSampleTimeUs;
-    List<int64_t> mDriftTimeQueue;
-
-    struct Output {
-        Output();
-        List<MediaBuffer*> mBufferQueue;
-        bool mEncoderReachedEOS;
-        status_t mErrorCode;
-        Condition mCond;
-    };
-    Mutexed<Output> mOutput;
-
-    int32_t mGeneration;
-
-    DISALLOW_EVIL_CONSTRUCTORS(MediaCodecSource);
-};
-
-} // namespace android
-
-#endif /* MediaCodecSource_H_ */
diff --git a/include/media/stagefright/MediaDefs.h b/include/media/stagefright/MediaDefs.h
deleted file mode 100644
index 5f2a32d..0000000
--- a/include/media/stagefright/MediaDefs.h
+++ /dev/null
@@ -1,82 +0,0 @@
-/*
- * Copyright (C) 2009 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef MEDIA_DEFS_H_
-
-#define MEDIA_DEFS_H_
-
-namespace android {
-
-extern const char *MEDIA_MIMETYPE_IMAGE_JPEG;
-
-extern const char *MEDIA_MIMETYPE_VIDEO_VP8;
-extern const char *MEDIA_MIMETYPE_VIDEO_VP9;
-extern const char *MEDIA_MIMETYPE_VIDEO_AVC;
-extern const char *MEDIA_MIMETYPE_VIDEO_HEVC;
-extern const char *MEDIA_MIMETYPE_VIDEO_MPEG4;
-extern const char *MEDIA_MIMETYPE_VIDEO_H263;
-extern const char *MEDIA_MIMETYPE_VIDEO_MPEG2;
-extern const char *MEDIA_MIMETYPE_VIDEO_RAW;
-extern const char *MEDIA_MIMETYPE_VIDEO_DOLBY_VISION;
-
-extern const char *MEDIA_MIMETYPE_AUDIO_AMR_NB;
-extern const char *MEDIA_MIMETYPE_AUDIO_AMR_WB;
-extern const char *MEDIA_MIMETYPE_AUDIO_MPEG;           // layer III
-extern const char *MEDIA_MIMETYPE_AUDIO_MPEG_LAYER_I;
-extern const char *MEDIA_MIMETYPE_AUDIO_MPEG_LAYER_II;
-extern const char *MEDIA_MIMETYPE_AUDIO_MIDI;
-extern const char *MEDIA_MIMETYPE_AUDIO_AAC;
-extern const char *MEDIA_MIMETYPE_AUDIO_QCELP;
-extern const char *MEDIA_MIMETYPE_AUDIO_VORBIS;
-extern const char *MEDIA_MIMETYPE_AUDIO_OPUS;
-extern const char *MEDIA_MIMETYPE_AUDIO_G711_ALAW;
-extern const char *MEDIA_MIMETYPE_AUDIO_G711_MLAW;
-extern const char *MEDIA_MIMETYPE_AUDIO_RAW;
-extern const char *MEDIA_MIMETYPE_AUDIO_FLAC;
-extern const char *MEDIA_MIMETYPE_AUDIO_AAC_ADTS;
-extern const char *MEDIA_MIMETYPE_AUDIO_MSGSM;
-extern const char *MEDIA_MIMETYPE_AUDIO_AC3;
-extern const char *MEDIA_MIMETYPE_AUDIO_EAC3;
-
-extern const char *MEDIA_MIMETYPE_CONTAINER_MPEG4;
-extern const char *MEDIA_MIMETYPE_CONTAINER_WAV;
-extern const char *MEDIA_MIMETYPE_CONTAINER_OGG;
-extern const char *MEDIA_MIMETYPE_CONTAINER_MATROSKA;
-extern const char *MEDIA_MIMETYPE_CONTAINER_MPEG2TS;
-extern const char *MEDIA_MIMETYPE_CONTAINER_AVI;
-extern const char *MEDIA_MIMETYPE_CONTAINER_MPEG2PS;
-
-extern const char *MEDIA_MIMETYPE_CONTAINER_WVM;
-
-extern const char *MEDIA_MIMETYPE_TEXT_3GPP;
-extern const char *MEDIA_MIMETYPE_TEXT_SUBRIP;
-extern const char *MEDIA_MIMETYPE_TEXT_VTT;
-extern const char *MEDIA_MIMETYPE_TEXT_CEA_608;
-extern const char *MEDIA_MIMETYPE_TEXT_CEA_708;
-extern const char *MEDIA_MIMETYPE_DATA_TIMED_ID3;
-
-// These are values exported to JAVA API that need to be in sync with
-// frameworks/base/media/java/android/media/AudioFormat.java. Unfortunately,
-// they are not defined in frameworks/av, so defining them here.
-enum AudioEncoding {
-    kAudioEncodingPcm16bit = 2,
-    kAudioEncodingPcm8bit = 3,
-    kAudioEncodingPcmFloat = 4,
-};
-
-}  // namespace android
-
-#endif  // MEDIA_DEFS_H_
diff --git a/include/media/stagefright/MediaExtractor.h b/include/media/stagefright/MediaExtractor.h
deleted file mode 100644
index f383e72..0000000
--- a/include/media/stagefright/MediaExtractor.h
+++ /dev/null
@@ -1,89 +0,0 @@
-/*
- * Copyright (C) 2009 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef MEDIA_EXTRACTOR_H_
-
-#define MEDIA_EXTRACTOR_H_
-
-#include <media/IMediaExtractor.h>
-#include <media/IMediaSource.h>
-
-namespace android {
-
-class DataSource;
-struct MediaSource;
-class MetaData;
-
-class MediaExtractor : public BnMediaExtractor {
-public:
-    static sp<IMediaExtractor> Create(
-            const sp<DataSource> &source, const char *mime = NULL);
-    static sp<MediaExtractor> CreateFromService(
-            const sp<DataSource> &source, const char *mime = NULL);
-
-    virtual size_t countTracks() = 0;
-    virtual sp<IMediaSource> getTrack(size_t index) = 0;
-
-    enum GetTrackMetaDataFlags {
-        kIncludeExtensiveMetaData = 1
-    };
-    virtual sp<MetaData> getTrackMetaData(
-            size_t index, uint32_t flags = 0) = 0;
-
-    // Return container specific meta-data. The default implementation
-    // returns an empty metadata object.
-    virtual sp<MetaData> getMetaData();
-
-    enum Flags {
-        CAN_SEEK_BACKWARD  = 1,  // the "seek 10secs back button"
-        CAN_SEEK_FORWARD   = 2,  // the "seek 10secs forward button"
-        CAN_PAUSE          = 4,
-        CAN_SEEK           = 8,  // the "seek bar"
-    };
-
-    // If subclasses do _not_ override this, the default is
-    // CAN_SEEK_BACKWARD | CAN_SEEK_FORWARD | CAN_SEEK | CAN_PAUSE
-    virtual uint32_t flags() const;
-
-    // for DRM
-    void setDrmFlag(bool flag) {
-        mIsDrm = flag;
-    };
-    bool getDrmFlag() {
-        return mIsDrm;
-    }
-    virtual char* getDrmTrackInfo(size_t /*trackID*/, int * /*len*/) {
-        return NULL;
-    }
-    virtual void setUID(uid_t /*uid*/) {
-    }
-
-    virtual const char * name() { return "<unspecified>"; }
-
-protected:
-    MediaExtractor();
-    virtual ~MediaExtractor() {}
-
-private:
-    bool mIsDrm;
-
-    MediaExtractor(const MediaExtractor &);
-    MediaExtractor &operator=(const MediaExtractor &);
-};
-
-}  // namespace android
-
-#endif  // MEDIA_EXTRACTOR_H_
diff --git a/include/media/stagefright/MediaFilter.h b/include/media/stagefright/MediaFilter.h
deleted file mode 100644
index 5725f88..0000000
--- a/include/media/stagefright/MediaFilter.h
+++ /dev/null
@@ -1,169 +0,0 @@
-/*
- * Copyright (C) 2014 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef MEDIA_FILTER_H_
-#define MEDIA_FILTER_H_
-
-#include <media/stagefright/CodecBase.h>
-
-namespace android {
-
-struct ABuffer;
-struct GraphicBufferListener;
-class MemoryDealer;
-struct SimpleFilter;
-
-struct MediaFilter : public CodecBase {
-    MediaFilter();
-
-    virtual void setNotificationMessage(const sp<AMessage> &msg);
-
-    virtual void initiateAllocateComponent(const sp<AMessage> &msg);
-    virtual void initiateConfigureComponent(const sp<AMessage> &msg);
-    virtual void initiateCreateInputSurface();
-    virtual void initiateSetInputSurface(const sp<PersistentSurface> &surface);
-
-    virtual void initiateStart();
-    virtual void initiateShutdown(bool keepComponentAllocated = false);
-
-    virtual void signalFlush();
-    virtual void signalResume();
-
-    virtual void signalRequestIDRFrame();
-    virtual void signalSetParameters(const sp<AMessage> &msg);
-    virtual void signalEndOfInputStream();
-
-    virtual void onMessageReceived(const sp<AMessage> &msg);
-
-    struct PortDescription : public CodecBase::PortDescription {
-        virtual size_t countBuffers();
-        virtual IOMX::buffer_id bufferIDAt(size_t index) const;
-        virtual sp<ABuffer> bufferAt(size_t index) const;
-
-    protected:
-        PortDescription();
-
-    private:
-        friend struct MediaFilter;
-
-        Vector<IOMX::buffer_id> mBufferIDs;
-        Vector<sp<ABuffer> > mBuffers;
-
-        void addBuffer(IOMX::buffer_id id, const sp<ABuffer> &buffer);
-
-        DISALLOW_EVIL_CONSTRUCTORS(PortDescription);
-    };
-
-protected:
-    virtual ~MediaFilter();
-
-private:
-    struct BufferInfo {
-        enum Status {
-            OWNED_BY_US,
-            OWNED_BY_UPSTREAM,
-        };
-
-        IOMX::buffer_id mBufferID;
-        int32_t mGeneration;
-        int32_t mOutputFlags;
-        Status mStatus;
-
-        sp<ABuffer> mData;
-    };
-
-    enum State {
-      UNINITIALIZED,
-      INITIALIZED,
-      CONFIGURED,
-      STARTED,
-    };
-
-    enum {
-        kWhatInputBufferFilled       = 'inpF',
-        kWhatOutputBufferDrained     = 'outD',
-        kWhatShutdown                = 'shut',
-        kWhatFlush                   = 'flus',
-        kWhatResume                  = 'resm',
-        kWhatAllocateComponent       = 'allo',
-        kWhatConfigureComponent      = 'conf',
-        kWhatCreateInputSurface      = 'cisf',
-        kWhatSignalEndOfInputStream  = 'eois',
-        kWhatStart                   = 'star',
-        kWhatSetParameters           = 'setP',
-        kWhatProcessBuffers          = 'proc',
-    };
-
-    enum {
-        kPortIndexInput  = 0,
-        kPortIndexOutput = 1
-    };
-
-    // member variables
-    AString mComponentName;
-    State mState;
-    status_t mInputEOSResult;
-    int32_t mWidth, mHeight;
-    int32_t mStride, mSliceHeight;
-    int32_t mColorFormatIn, mColorFormatOut;
-    size_t mMaxInputSize, mMaxOutputSize;
-    int32_t mGeneration;
-    sp<AMessage> mNotify;
-    sp<AMessage> mInputFormat;
-    sp<AMessage> mOutputFormat;
-
-    sp<MemoryDealer> mDealer[2];
-    Vector<BufferInfo> mBuffers[2];
-    Vector<BufferInfo*> mAvailableInputBuffers;
-    Vector<BufferInfo*> mAvailableOutputBuffers;
-    bool mPortEOS[2];
-
-    sp<SimpleFilter> mFilter;
-    sp<GraphicBufferListener> mGraphicBufferListener;
-
-    // helper functions
-    void signalProcessBuffers();
-    void signalError(status_t error);
-
-    status_t allocateBuffersOnPort(OMX_U32 portIndex);
-    BufferInfo *findBufferByID(
-            uint32_t portIndex, IOMX::buffer_id bufferID,
-            ssize_t *index = NULL);
-    void postFillThisBuffer(BufferInfo *info);
-    void postDrainThisBuffer(BufferInfo *info);
-    void postEOS();
-    void sendFormatChange();
-    void requestFillEmptyInput();
-    void processBuffers();
-
-    void onAllocateComponent(const sp<AMessage> &msg);
-    void onConfigureComponent(const sp<AMessage> &msg);
-    void onStart();
-    void onInputBufferFilled(const sp<AMessage> &msg);
-    void onOutputBufferDrained(const sp<AMessage> &msg);
-    void onShutdown(const sp<AMessage> &msg);
-    void onFlush();
-    void onSetParameters(const sp<AMessage> &msg);
-    void onCreateInputSurface();
-    void onInputFrameAvailable();
-    void onSignalEndOfInputStream();
-
-    DISALLOW_EVIL_CONSTRUCTORS(MediaFilter);
-};
-
-}  // namespace android
-
-#endif  // MEDIA_FILTER_H_
diff --git a/include/media/stagefright/MediaMuxer.h b/include/media/stagefright/MediaMuxer.h
deleted file mode 100644
index fa855a8..0000000
--- a/include/media/stagefright/MediaMuxer.h
+++ /dev/null
@@ -1,139 +0,0 @@
-/*
- * Copyright 2013, The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef MEDIA_MUXER_H_
-#define MEDIA_MUXER_H_
-
-#include <utils/Errors.h>
-#include <utils/RefBase.h>
-#include <utils/Vector.h>
-#include <utils/threads.h>
-
-#include "foundation/ABase.h"
-
-namespace android {
-
-struct ABuffer;
-struct AMessage;
-struct MediaAdapter;
-class MediaBuffer;
-struct MediaSource;
-class MetaData;
-struct MediaWriter;
-
-// MediaMuxer is used to mux multiple tracks into a video. Currently, we only
-// support a mp4 file as the output.
-// The expected calling order of the functions is:
-// Constructor -> addTrack+ -> start -> writeSampleData+ -> stop
-// If muxing operation need to be cancelled, the app is responsible for
-// deleting the output file after stop.
-struct MediaMuxer : public RefBase {
-public:
-    // Please update media/java/android/media/MediaMuxer.java if the
-    // OutputFormat is updated.
-    enum OutputFormat {
-        OUTPUT_FORMAT_MPEG_4 = 0,
-        OUTPUT_FORMAT_WEBM   = 1,
-        OUTPUT_FORMAT_LIST_END // must be last - used to validate format type
-    };
-
-    // Construct the muxer with the file descriptor. Note that the MediaMuxer
-    // will close this file at stop().
-    MediaMuxer(int fd, OutputFormat format);
-
-    virtual ~MediaMuxer();
-
-    /**
-     * Add a track with its format information. This should be
-     * called before start().
-     * @param format the track's format.
-     * @return the track's index or negative number if error.
-     */
-    ssize_t addTrack(const sp<AMessage> &format);
-
-    /**
-     * Start muxing. Make sure all the tracks have been added before
-     * calling this.
-     */
-    status_t start();
-
-    /**
-     * Set the orientation hint.
-     * @param degrees The rotation degrees. It has to be either 0,
-     *                90, 180 or 270.
-     * @return OK if no error.
-     */
-    status_t setOrientationHint(int degrees);
-
-    /**
-     * Set the location.
-     * @param latitude The latitude in degree x 1000. Its value must be in the range
-     * [-900000, 900000].
-     * @param longitude The longitude in degree x 1000. Its value must be in the range
-     * [-1800000, 1800000].
-     * @return OK if no error.
-     */
-    status_t setLocation(int latitude, int longitude);
-
-    /**
-     * Stop muxing.
-     * This method is a blocking call. Depending on how
-     * much data is bufferred internally, the time needed for stopping
-     * the muxer may be time consuming. UI thread is
-     * not recommended for launching this call.
-     * @return OK if no error.
-     */
-    status_t stop();
-
-    /**
-     * Send a sample buffer for muxing.
-     * The buffer can be reused once this method returns. Typically,
-     * this function won't be blocked for very long, and thus there
-     * is no need to use a separate thread calling this method to
-     * push a buffer.
-     * @param buffer the incoming sample buffer.
-     * @param trackIndex the buffer's track index number.
-     * @param timeUs the buffer's time stamp.
-     * @param flags the only supported flag for now is
-     *              MediaCodec::BUFFER_FLAG_SYNCFRAME.
-     * @return OK if no error.
-     */
-    status_t writeSampleData(const sp<ABuffer> &buffer, size_t trackIndex,
-                             int64_t timeUs, uint32_t flags) ;
-
-private:
-    const OutputFormat mFormat;
-    sp<MediaWriter> mWriter;
-    Vector< sp<MediaAdapter> > mTrackList;  // Each track has its MediaAdapter.
-    sp<MetaData> mFileMeta;  // Metadata for the whole file.
-
-    Mutex mMuxerLock;
-
-    enum State {
-        UNINITIALIZED,
-        INITIALIZED,
-        STARTED,
-        STOPPED
-    };
-    State mState;
-
-    DISALLOW_EVIL_CONSTRUCTORS(MediaMuxer);
-};
-
-}  // namespace android
-
-#endif  // MEDIA_MUXER_H_
-
diff --git a/include/media/stagefright/MediaWriter.h b/include/media/stagefright/MediaWriter.h
deleted file mode 100644
index 2b19523..0000000
--- a/include/media/stagefright/MediaWriter.h
+++ /dev/null
@@ -1,72 +0,0 @@
-/*
- * Copyright (C) 2010 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef MEDIA_WRITER_H_
-
-#define MEDIA_WRITER_H_
-
-#include <utils/RefBase.h>
-#include <media/IMediaRecorderClient.h>
-#include <media/IMediaSource.h>
-
-namespace android {
-
-class MetaData;
-
-struct MediaWriter : public RefBase {
-    MediaWriter()
-        : mMaxFileSizeLimitBytes(0),
-          mMaxFileDurationLimitUs(0) {
-    }
-
-    virtual status_t addSource(const sp<IMediaSource> &source) = 0;
-    virtual bool reachedEOS() = 0;
-    virtual status_t start(MetaData *params = NULL) = 0;
-    virtual status_t stop() = 0;
-    virtual status_t pause() = 0;
-
-    virtual void setMaxFileSize(int64_t bytes) { mMaxFileSizeLimitBytes = bytes; }
-    virtual void setMaxFileDuration(int64_t durationUs) { mMaxFileDurationLimitUs = durationUs; }
-    virtual void setListener(const sp<IMediaRecorderClient>& listener) {
-        mListener = listener;
-    }
-
-    virtual status_t dump(int /*fd*/, const Vector<String16>& /*args*/) {
-        return OK;
-    }
-
-    virtual void setStartTimeOffsetMs(int /*ms*/) {}
-    virtual int32_t getStartTimeOffsetMs() const { return 0; }
-
-protected:
-    virtual ~MediaWriter() {}
-    int64_t mMaxFileSizeLimitBytes;
-    int64_t mMaxFileDurationLimitUs;
-    sp<IMediaRecorderClient> mListener;
-
-    void notify(int msg, int ext1, int ext2) {
-        if (mListener != NULL) {
-            mListener->notify(msg, ext1, ext2);
-        }
-    }
-private:
-    MediaWriter(const MediaWriter &);
-    MediaWriter &operator=(const MediaWriter &);
-};
-
-}  // namespace android
-
-#endif  // MEDIA_WRITER_H_
diff --git a/include/media/stagefright/MetaData.h b/include/media/stagefright/MetaData.h
deleted file mode 100644
index 6ba7b32..0000000
--- a/include/media/stagefright/MetaData.h
+++ /dev/null
@@ -1,325 +0,0 @@
-/*
- * Copyright (C) 2009 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef META_DATA_H_
-
-#define META_DATA_H_
-
-#include <sys/types.h>
-
-#include <stdint.h>
-
-#include <binder/Parcel.h>
-#include <utils/RefBase.h>
-#include <utils/KeyedVector.h>
-#include <utils/String8.h>
-
-namespace android {
-
-// The following keys map to int32_t data unless indicated otherwise.
-enum {
-    kKeyMIMEType          = 'mime',  // cstring
-    kKeyWidth             = 'widt',  // int32_t, image pixel
-    kKeyHeight            = 'heig',  // int32_t, image pixel
-    kKeyDisplayWidth      = 'dWid',  // int32_t, display/presentation
-    kKeyDisplayHeight     = 'dHgt',  // int32_t, display/presentation
-    kKeySARWidth          = 'sarW',  // int32_t, sampleAspectRatio width
-    kKeySARHeight         = 'sarH',  // int32_t, sampleAspectRatio height
-
-    // a rectangle, if absent assumed to be (0, 0, width - 1, height - 1)
-    kKeyCropRect          = 'crop',
-
-    kKeyRotation          = 'rotA',  // int32_t (angle in degrees)
-    kKeyIFramesInterval   = 'ifiv',  // int32_t
-    kKeyStride            = 'strd',  // int32_t
-    kKeySliceHeight       = 'slht',  // int32_t
-    kKeyChannelCount      = '#chn',  // int32_t
-    kKeyChannelMask       = 'chnm',  // int32_t
-    kKeySampleRate        = 'srte',  // int32_t (audio sampling rate Hz)
-    kKeyPcmEncoding       = 'PCMe',  // int32_t (audio encoding enum)
-    kKeyFrameRate         = 'frmR',  // int32_t (video frame rate fps)
-    kKeyBitRate           = 'brte',  // int32_t (bps)
-    kKeyMaxBitRate        = 'mxBr',  // int32_t (bps)
-    kKeyStreamHeader      = 'stHd',  // raw data
-    kKeyESDS              = 'esds',  // raw data
-    kKeyAACProfile        = 'aacp',  // int32_t
-    kKeyAVCC              = 'avcc',  // raw data
-    kKeyHVCC              = 'hvcc',  // raw data
-    kKeyD263              = 'd263',  // raw data
-    kKeyVorbisInfo        = 'vinf',  // raw data
-    kKeyVorbisBooks       = 'vboo',  // raw data
-    kKeyOpusHeader        = 'ohdr',  // raw data
-    kKeyOpusCodecDelay    = 'ocod',  // uint64_t (codec delay in ns)
-    kKeyOpusSeekPreRoll   = 'ospr',  // uint64_t (seek preroll in ns)
-    kKeyVp9CodecPrivate   = 'vp9p',  // raw data (vp9 csd information)
-    kKeyWantsNALFragments = 'NALf',
-    kKeyIsSyncFrame       = 'sync',  // int32_t (bool)
-    kKeyIsCodecConfig     = 'conf',  // int32_t (bool)
-    kKeyTime              = 'time',  // int64_t (usecs)
-    kKeyDecodingTime      = 'decT',  // int64_t (decoding timestamp in usecs)
-    kKeyNTPTime           = 'ntpT',  // uint64_t (ntp-timestamp)
-    kKeyTargetTime        = 'tarT',  // int64_t (usecs)
-    kKeyDriftTime         = 'dftT',  // int64_t (usecs)
-    kKeyAnchorTime        = 'ancT',  // int64_t (usecs)
-    kKeyDuration          = 'dura',  // int64_t (usecs)
-    kKeyPixelFormat       = 'pixf',  // int32_t
-    kKeyColorFormat       = 'colf',  // int32_t
-    kKeyColorSpace        = 'cols',  // int32_t
-    kKeyPlatformPrivate   = 'priv',  // pointer
-    kKeyDecoderComponent  = 'decC',  // cstring
-    kKeyBufferID          = 'bfID',
-    kKeyMaxInputSize      = 'inpS',
-    kKeyMaxWidth          = 'maxW',
-    kKeyMaxHeight         = 'maxH',
-    kKeyThumbnailTime     = 'thbT',  // int64_t (usecs)
-    kKeyTrackID           = 'trID',
-    kKeyIsDRM             = 'idrm',  // int32_t (bool)
-    kKeyEncoderDelay      = 'encd',  // int32_t (frames)
-    kKeyEncoderPadding    = 'encp',  // int32_t (frames)
-
-    kKeyAlbum             = 'albu',  // cstring
-    kKeyArtist            = 'arti',  // cstring
-    kKeyAlbumArtist       = 'aart',  // cstring
-    kKeyComposer          = 'comp',  // cstring
-    kKeyGenre             = 'genr',  // cstring
-    kKeyTitle             = 'titl',  // cstring
-    kKeyYear              = 'year',  // cstring
-    kKeyAlbumArt          = 'albA',  // compressed image data
-    kKeyAlbumArtMIME      = 'alAM',  // cstring
-    kKeyAuthor            = 'auth',  // cstring
-    kKeyCDTrackNumber     = 'cdtr',  // cstring
-    kKeyDiscNumber        = 'dnum',  // cstring
-    kKeyDate              = 'date',  // cstring
-    kKeyWriter            = 'writ',  // cstring
-    kKeyCompilation       = 'cpil',  // cstring
-    kKeyLocation          = 'loc ',  // cstring
-    kKeyTimeScale         = 'tmsl',  // int32_t
-    kKeyCaptureFramerate  = 'capF',  // float (capture fps)
-
-    // video profile and level
-    kKeyVideoProfile      = 'vprf',  // int32_t
-    kKeyVideoLevel        = 'vlev',  // int32_t
-
-    // Set this key to enable authoring files in 64-bit offset
-    kKey64BitFileOffset   = 'fobt',  // int32_t (bool)
-    kKey2ByteNalLength    = '2NAL',  // int32_t (bool)
-
-    // Identify the file output format for authoring
-    // Please see <media/mediarecorder.h> for the supported
-    // file output formats.
-    kKeyFileType          = 'ftyp',  // int32_t
-
-    // Track authoring progress status
-    // kKeyTrackTimeStatus is used to track progress in elapsed time
-    kKeyTrackTimeStatus   = 'tktm',  // int64_t
-
-    kKeyRealTimeRecording = 'rtrc',  // bool (int32_t)
-    kKeyNumBuffers        = 'nbbf',  // int32_t
-
-    // Ogg files can be tagged to be automatically looping...
-    kKeyAutoLoop          = 'autL',  // bool (int32_t)
-
-    kKeyValidSamples      = 'valD',  // int32_t
-
-    kKeyIsUnreadable      = 'unre',  // bool (int32_t)
-
-    // An indication that a video buffer has been rendered.
-    kKeyRendered          = 'rend',  // bool (int32_t)
-
-    // The language code for this media
-    kKeyMediaLanguage     = 'lang',  // cstring
-
-    // To store the timed text format data
-    kKeyTextFormatData    = 'text',  // raw data
-
-    kKeyRequiresSecureBuffers = 'secu',  // bool (int32_t)
-
-    kKeyIsADTS            = 'adts',  // bool (int32_t)
-    kKeyAACAOT            = 'aaot',  // int32_t
-
-    // If a MediaBuffer's data represents (at least partially) encrypted
-    // data, the following fields aid in decryption.
-    // The data can be thought of as pairs of plain and encrypted data
-    // fragments, i.e. plain and encrypted data alternate.
-    // The first fragment is by convention plain data (if that's not the
-    // case, simply specify plain fragment size of 0).
-    // kKeyEncryptedSizes and kKeyPlainSizes each map to an array of
-    // size_t values. The sum total of all size_t values of both arrays
-    // must equal the amount of data (i.e. MediaBuffer's range_length()).
-    // If both arrays are present, they must be of the same size.
-    // If only encrypted sizes are present it is assumed that all
-    // plain sizes are 0, i.e. all fragments are encrypted.
-    // To programmatically set these array, use the MetaData::setData API, i.e.
-    // const size_t encSizes[];
-    // meta->setData(
-    //  kKeyEncryptedSizes, 0 /* type */, encSizes, sizeof(encSizes));
-    // A plain sizes array by itself makes no sense.
-    kKeyEncryptedSizes    = 'encr',  // size_t[]
-    kKeyPlainSizes        = 'plai',  // size_t[]
-    kKeyCryptoKey         = 'cryK',  // uint8_t[16]
-    kKeyCryptoIV          = 'cryI',  // uint8_t[16]
-    kKeyCryptoMode        = 'cryM',  // int32_t
-
-    kKeyCryptoDefaultIVSize = 'cryS',  // int32_t
-
-    kKeyPssh              = 'pssh',  // raw data
-
-    // Please see MediaFormat.KEY_IS_AUTOSELECT.
-    kKeyTrackIsAutoselect = 'auto', // bool (int32_t)
-    // Please see MediaFormat.KEY_IS_DEFAULT.
-    kKeyTrackIsDefault    = 'dflt', // bool (int32_t)
-    // Similar to MediaFormat.KEY_IS_FORCED_SUBTITLE but pertains to av tracks as well.
-    kKeyTrackIsForced     = 'frcd', // bool (int32_t)
-
-    // H264 supplemental enhancement information offsets/sizes
-    kKeySEI               = 'sei ', // raw data
-
-    // MPEG user data offsets
-    kKeyMpegUserData      = 'mpud', // size_t[]
-
-    // Size of NALU length in mkv/mp4
-    kKeyNalLengthSize     = 'nals', // int32_t
-
-    // HDR related
-    kKeyHdrStaticInfo    = 'hdrS', // HDRStaticInfo
-
-    // color aspects
-    kKeyColorRange       = 'cRng', // int32_t, color range, value defined by ColorAspects.Range
-    kKeyColorPrimaries   = 'cPrm', // int32_t,
-                                   // color Primaries, value defined by ColorAspects.Primaries
-    kKeyTransferFunction = 'tFun', // int32_t,
-                                   // transfer Function, value defined by ColorAspects.Transfer.
-    kKeyColorMatrix      = 'cMtx', // int32_t,
-                                   // color Matrix, value defined by ColorAspects.MatrixCoeffs.
-    kKeyTemporalLayerId  = 'iLyr', // int32_t, temporal layer-id. 0-based (0 => base layer)
-    kKeyTemporalLayerCount = 'cLyr', // int32_t, number of temporal layers encoded
-};
-
-enum {
-    kTypeESDS        = 'esds',
-    kTypeAVCC        = 'avcc',
-    kTypeHVCC        = 'hvcc',
-    kTypeD263        = 'd263',
-};
-
-class MetaData : public RefBase {
-public:
-    MetaData();
-    MetaData(const MetaData &from);
-
-    enum Type {
-        TYPE_NONE     = 'none',
-        TYPE_C_STRING = 'cstr',
-        TYPE_INT32    = 'in32',
-        TYPE_INT64    = 'in64',
-        TYPE_FLOAT    = 'floa',
-        TYPE_POINTER  = 'ptr ',
-        TYPE_RECT     = 'rect',
-    };
-
-    void clear();
-    bool remove(uint32_t key);
-
-    bool setCString(uint32_t key, const char *value);
-    bool setInt32(uint32_t key, int32_t value);
-    bool setInt64(uint32_t key, int64_t value);
-    bool setFloat(uint32_t key, float value);
-    bool setPointer(uint32_t key, void *value);
-
-    bool setRect(
-            uint32_t key,
-            int32_t left, int32_t top,
-            int32_t right, int32_t bottom);
-
-    bool findCString(uint32_t key, const char **value);
-    bool findInt32(uint32_t key, int32_t *value);
-    bool findInt64(uint32_t key, int64_t *value);
-    bool findFloat(uint32_t key, float *value);
-    bool findPointer(uint32_t key, void **value);
-
-    bool findRect(
-            uint32_t key,
-            int32_t *left, int32_t *top,
-            int32_t *right, int32_t *bottom);
-
-    bool setData(uint32_t key, uint32_t type, const void *data, size_t size);
-
-    bool findData(uint32_t key, uint32_t *type,
-                  const void **data, size_t *size) const;
-
-    bool hasData(uint32_t key) const;
-
-    String8 toString() const;
-    void dumpToLog() const;
-
-    status_t writeToParcel(Parcel &parcel);
-    status_t updateFromParcel(const Parcel &parcel);
-    static sp<MetaData> createFromParcel(const Parcel &parcel);
-
-protected:
-    virtual ~MetaData();
-
-private:
-    struct typed_data {
-        typed_data();
-        ~typed_data();
-
-        typed_data(const MetaData::typed_data &);
-        typed_data &operator=(const MetaData::typed_data &);
-
-        void clear();
-        void setData(uint32_t type, const void *data, size_t size);
-        void getData(uint32_t *type, const void **data, size_t *size) const;
-        // may include hexdump of binary data if verbose=true
-        String8 asString(bool verbose) const;
-
-    private:
-        uint32_t mType;
-        size_t mSize;
-
-        union {
-            void *ext_data;
-            float reservoir;
-        } u;
-
-        bool usesReservoir() const {
-            return mSize <= sizeof(u.reservoir);
-        }
-
-        void *allocateStorage(size_t size);
-        void freeStorage();
-
-        void *storage() {
-            return usesReservoir() ? &u.reservoir : u.ext_data;
-        }
-
-        const void *storage() const {
-            return usesReservoir() ? &u.reservoir : u.ext_data;
-        }
-    };
-
-    struct Rect {
-        int32_t mLeft, mTop, mRight, mBottom;
-    };
-
-    KeyedVector<uint32_t, typed_data> mItems;
-
-    // MetaData &operator=(const MetaData &);
-};
-
-}  // namespace android
-
-#endif  // META_DATA_H_
diff --git a/include/media/stagefright/NuMediaExtractor.h b/include/media/stagefright/NuMediaExtractor.h
deleted file mode 100644
index dd31447..0000000
--- a/include/media/stagefright/NuMediaExtractor.h
+++ /dev/null
@@ -1,134 +0,0 @@
-/*
- * Copyright 2012, The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef NU_MEDIA_EXTRACTOR_H_
-#define NU_MEDIA_EXTRACTOR_H_
-
-#include <media/stagefright/foundation/ABase.h>
-#include <media/stagefright/MediaSource.h>
-#include <media/IMediaExtractor.h>
-#include <utils/Errors.h>
-#include <utils/KeyedVector.h>
-#include <utils/RefBase.h>
-#include <utils/String8.h>
-#include <utils/threads.h>
-#include <utils/Vector.h>
-
-namespace android {
-
-struct ABuffer;
-struct AMessage;
-class DataSource;
-struct IMediaHTTPService;
-class MediaBuffer;
-class MediaExtractor;
-struct MediaSource;
-class MetaData;
-
-struct NuMediaExtractor : public RefBase {
-    enum SampleFlags {
-        SAMPLE_FLAG_SYNC        = 1,
-        SAMPLE_FLAG_ENCRYPTED   = 2,
-    };
-
-    // identical to IMediaExtractor::GetTrackMetaDataFlags
-    enum GetTrackFormatFlags {
-        kIncludeExtensiveMetaData = 1, // reads sample table and possibly stream headers
-    };
-
-    NuMediaExtractor();
-
-    status_t setDataSource(
-            const sp<IMediaHTTPService> &httpService,
-            const char *path,
-            const KeyedVector<String8, String8> *headers = NULL);
-
-    status_t setDataSource(int fd, off64_t offset, off64_t size);
-
-    status_t setDataSource(const sp<DataSource> &datasource);
-
-    size_t countTracks() const;
-    status_t getTrackFormat(size_t index, sp<AMessage> *format, uint32_t flags = 0) const;
-
-    status_t getFileFormat(sp<AMessage> *format) const;
-
-    status_t selectTrack(size_t index);
-    status_t unselectTrack(size_t index);
-
-    status_t seekTo(
-            int64_t timeUs,
-            MediaSource::ReadOptions::SeekMode mode =
-                MediaSource::ReadOptions::SEEK_CLOSEST_SYNC);
-
-    status_t advance();
-    status_t readSampleData(const sp<ABuffer> &buffer);
-    status_t getSampleTrackIndex(size_t *trackIndex);
-    status_t getSampleTime(int64_t *sampleTimeUs);
-    status_t getSampleMeta(sp<MetaData> *sampleMeta);
-
-    bool getCachedDuration(int64_t *durationUs, bool *eos) const;
-
-protected:
-    virtual ~NuMediaExtractor();
-
-private:
-    enum TrackFlags {
-        kIsVorbis       = 1,
-    };
-
-    enum {
-        kMaxTrackCount = 16384,
-    };
-
-    struct TrackInfo {
-        sp<IMediaSource> mSource;
-        size_t mTrackIndex;
-        status_t mFinalResult;
-        MediaBuffer *mSample;
-        int64_t mSampleTimeUs;
-
-        uint32_t mTrackFlags;  // bitmask of "TrackFlags"
-    };
-
-    mutable Mutex mLock;
-
-    sp<DataSource> mDataSource;
-
-    sp<IMediaExtractor> mImpl;
-    bool mIsWidevineExtractor;
-
-    Vector<TrackInfo> mSelectedTracks;
-    int64_t mTotalBitrate;  // in bits/sec
-    int64_t mDurationUs;
-
-    ssize_t fetchTrackSamples(
-            int64_t seekTimeUs = -1ll,
-            MediaSource::ReadOptions::SeekMode mode =
-                MediaSource::ReadOptions::SEEK_CLOSEST_SYNC);
-
-    void releaseTrackSamples();
-
-    bool getTotalBitrate(int64_t *bitRate) const;
-    status_t updateDurationAndBitrate();
-    status_t appendVorbisNumPageSamples(TrackInfo *info, const sp<ABuffer> &buffer);
-
-    DISALLOW_EVIL_CONSTRUCTORS(NuMediaExtractor);
-};
-
-}  // namespace android
-
-#endif  // NU_MEDIA_EXTRACTOR_H_
-
diff --git a/include/media/stagefright/OMXClient.h b/include/media/stagefright/OMXClient.h
deleted file mode 100644
index 2f14d06..0000000
--- a/include/media/stagefright/OMXClient.h
+++ /dev/null
@@ -1,45 +0,0 @@
-/*
- * Copyright (C) 2009 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef OMX_CLIENT_H_
-
-#define OMX_CLIENT_H_
-
-#include <media/IOMX.h>
-
-namespace android {
-
-class OMXClient {
-public:
-    OMXClient();
-
-    status_t connect();
-    void disconnect();
-
-    sp<IOMX> interface() {
-        return mOMX;
-    }
-
-private:
-    sp<IOMX> mOMX;
-
-    OMXClient(const OMXClient &);
-    OMXClient &operator=(const OMXClient &);
-};
-
-}  // namespace android
-
-#endif  // OMX_CLIENT_H_
diff --git a/include/media/stagefright/PersistentSurface.h b/include/media/stagefright/PersistentSurface.h
deleted file mode 100644
index a35b9f1..0000000
--- a/include/media/stagefright/PersistentSurface.h
+++ /dev/null
@@ -1,51 +0,0 @@
-/*
- * Copyright 2015 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef PERSISTENT_SURFACE_H_
-
-#define PERSISTENT_SURFACE_H_
-
-#include <gui/IGraphicBufferProducer.h>
-#include <gui/IGraphicBufferConsumer.h>
-#include <media/stagefright/foundation/ABase.h>
-
-namespace android {
-
-struct PersistentSurface : public RefBase {
-    PersistentSurface(
-            const sp<IGraphicBufferProducer>& bufferProducer,
-            const sp<IGraphicBufferConsumer>& bufferConsumer) :
-        mBufferProducer(bufferProducer),
-        mBufferConsumer(bufferConsumer) { }
-
-    sp<IGraphicBufferProducer> getBufferProducer() const {
-        return mBufferProducer;
-    }
-
-    sp<IGraphicBufferConsumer> getBufferConsumer() const {
-        return mBufferConsumer;
-    }
-
-private:
-    const sp<IGraphicBufferProducer> mBufferProducer;
-    const sp<IGraphicBufferConsumer> mBufferConsumer;
-
-    DISALLOW_EVIL_CONSTRUCTORS(PersistentSurface);
-};
-
-}  // namespace android
-
-#endif  // PERSISTENT_SURFACE_H_
diff --git a/include/media/stagefright/SkipCutBuffer.h b/include/media/stagefright/SkipCutBuffer.h
deleted file mode 100644
index 61f9949..0000000
--- a/include/media/stagefright/SkipCutBuffer.h
+++ /dev/null
@@ -1,63 +0,0 @@
-/*
- * Copyright (C) 2012 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef SKIP_CUT_BUFFER_H_
-
-#define SKIP_CUT_BUFFER_H_
-
-#include <media/stagefright/MediaBuffer.h>
-#include <media/stagefright/foundation/ABuffer.h>
-
-namespace android {
-
-/**
- * utility class to cut the start and end off a stream of data in MediaBuffers
- *
- */
-class SkipCutBuffer: public RefBase {
- public:
-    // 'skip' is the number of frames to skip from the beginning
-    // 'cut' is the number of frames to cut from the end
-    // 'num16BitChannels' is the number of channels, which are assumed to be 16 bit wide each
-    SkipCutBuffer(size_t skip, size_t cut, size_t num16Channels);
-
-    // Submit one MediaBuffer for skipping and cutting. This may consume all or
-    // some of the data in the buffer, or it may add data to it.
-    // After this, the caller should continue processing the buffer as usual.
-    void submit(MediaBuffer *buffer);
-    void submit(const sp<ABuffer>& buffer);    // same as above, but with an ABuffer
-    void clear();
-    size_t size(); // how many bytes are currently stored in the buffer
-
- protected:
-    virtual ~SkipCutBuffer();
-
- private:
-    void write(const char *src, size_t num);
-    size_t read(char *dst, size_t num);
-    int32_t mSkip;
-    int32_t mFrontPadding;
-    int32_t mBackPadding;
-    int32_t mWriteHead;
-    int32_t mReadHead;
-    int32_t mCapacity;
-    char* mCutBuffer;
-    DISALLOW_EVIL_CONSTRUCTORS(SkipCutBuffer);
-};
-
-}  // namespace android
-
-#endif  // OMX_CODEC_H_
diff --git a/include/media/stagefright/SurfaceMediaSource.h b/include/media/stagefright/SurfaceMediaSource.h
deleted file mode 100644
index ca3a3bf..0000000
--- a/include/media/stagefright/SurfaceMediaSource.h
+++ /dev/null
@@ -1,249 +0,0 @@
-/*
- * Copyright (C) 2011 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_GUI_SURFACEMEDIASOURCE_H
-#define ANDROID_GUI_SURFACEMEDIASOURCE_H
-
-#include <gui/IGraphicBufferProducer.h>
-#include <gui/BufferQueue.h>
-
-#include <utils/threads.h>
-#include <utils/Vector.h>
-#include <media/stagefright/MediaSource.h>
-#include <media/stagefright/MediaBuffer.h>
-
-#include <MetadataBufferType.h>
-
-#include "foundation/ABase.h"
-
-namespace android {
-// ----------------------------------------------------------------------------
-
-class IGraphicBufferAlloc;
-class String8;
-class GraphicBuffer;
-
-// ASSUMPTIONS
-// 1. SurfaceMediaSource is initialized with width*height which
-// can never change.  However, deqeueue buffer does not currently
-// enforce this as in BufferQueue, dequeue can be used by Surface
-// which can modify the default width and heght.  Also neither the width
-// nor height can be 0.
-// 2. setSynchronousMode is never used (basically no one should call
-// setSynchronousMode(false)
-// 3. setCrop, setTransform, setScalingMode should never be used
-// 4. queueBuffer returns a filled buffer to the SurfaceMediaSource. In addition, a
-// timestamp must be provided for the buffer. The timestamp is in
-// nanoseconds, and must be monotonically increasing. Its other semantics
-// (zero point, etc) are client-dependent and should be documented by the
-// client.
-// 5. Once disconnected, SurfaceMediaSource can be reused (can not
-// connect again)
-// 6. Stop is a hard stop, the last few frames held by the encoder
-// may be dropped.  It is possible to wait for the buffers to be
-// returned (but not implemented)
-
-#define DEBUG_PENDING_BUFFERS   0
-
-class SurfaceMediaSource : public MediaSource,
-                                public MediaBufferObserver,
-                                protected ConsumerListener {
-public:
-    enum { MIN_UNDEQUEUED_BUFFERS = 4};
-
-    struct FrameAvailableListener : public virtual RefBase {
-        // onFrameAvailable() is called from queueBuffer() is the FIFO is
-        // empty. You can use SurfaceMediaSource::getQueuedCount() to
-        // figure out if there are more frames waiting.
-        // This is called without any lock held can be called concurrently by
-        // multiple threads.
-        virtual void onFrameAvailable() = 0;
-    };
-
-    SurfaceMediaSource(uint32_t bufferWidth, uint32_t bufferHeight);
-
-    virtual ~SurfaceMediaSource();
-
-    // For the MediaSource interface for use by StageFrightRecorder:
-    virtual status_t start(MetaData *params = NULL);
-    virtual status_t stop();
-    virtual status_t read(MediaBuffer **buffer,
-            const ReadOptions *options = NULL);
-    virtual sp<MetaData> getFormat();
-
-    // Get / Set the frame rate used for encoding. Default fps = 30
-    status_t setFrameRate(int32_t fps) ;
-    int32_t getFrameRate( ) const;
-
-    // The call for the StageFrightRecorder to tell us that
-    // it is done using the MediaBuffer data so that its state
-    // can be set to FREE for dequeuing
-    virtual void signalBufferReturned(MediaBuffer* buffer);
-    // end of MediaSource interface
-
-    // getTimestamp retrieves the timestamp associated with the image
-    // set by the most recent call to read()
-    //
-    // The timestamp is in nanoseconds, and is monotonically increasing. Its
-    // other semantics (zero point, etc) are source-dependent and should be
-    // documented by the source.
-    int64_t getTimestamp();
-
-    // setFrameAvailableListener sets the listener object that will be notified
-    // when a new frame becomes available.
-    void setFrameAvailableListener(const sp<FrameAvailableListener>& listener);
-
-    // dump our state in a String
-    void dump(String8& result) const;
-    void dump(String8& result, const char* prefix, char* buffer,
-                                                    size_t SIZE) const;
-
-    // metaDataStoredInVideoBuffers tells the encoder what kind of metadata
-    // is passed through the buffers. Currently, it is set to ANWBuffer
-    MetadataBufferType metaDataStoredInVideoBuffers() const;
-
-    sp<IGraphicBufferProducer> getProducer() const { return mProducer; }
-
-    // To be called before start()
-    status_t setMaxAcquiredBufferCount(size_t count);
-
-    // To be called before start()
-    status_t setUseAbsoluteTimestamps();
-
-protected:
-
-    // Implementation of the BufferQueue::ConsumerListener interface.  These
-    // calls are used to notify the Surface of asynchronous events in the
-    // BufferQueue.
-    virtual void onFrameAvailable(const BufferItem& item);
-
-    // Used as a hook to BufferQueue::disconnect()
-    // This is called by the client side when it is done
-    // TODO: Currently, this also sets mStopped to true which
-    // is needed for unblocking the encoder which might be
-    // waiting to read more frames. So if on the client side,
-    // the same thread supplies the frames and also calls stop
-    // on the encoder, the client has to call disconnect before
-    // it calls stop.
-    // In the case of the camera,
-    // that need not be required since the thread supplying the
-    // frames is separate than the one calling stop.
-    virtual void onBuffersReleased();
-
-    // SurfaceMediaSource can't handle sideband streams, so this is not expected
-    // to ever be called. Does nothing.
-    virtual void onSidebandStreamChanged();
-
-    static bool isExternalFormat(uint32_t format);
-
-private:
-    // A BufferQueue, represented by these interfaces, is the exchange point
-    // between the producer and this consumer
-    sp<IGraphicBufferProducer> mProducer;
-    sp<IGraphicBufferConsumer> mConsumer;
-
-    struct SlotData {
-        sp<GraphicBuffer> mGraphicBuffer;
-        uint64_t mFrameNumber;
-    };
-
-    // mSlots caches GraphicBuffers and frameNumbers from the buffer queue
-    SlotData mSlots[BufferQueue::NUM_BUFFER_SLOTS];
-
-    // The permenent width and height of SMS buffers
-    int mWidth;
-    int mHeight;
-
-    // mCurrentSlot is the buffer slot index of the buffer that is currently
-    // being used by buffer consumer
-    // (e.g. StageFrightRecorder in the case of SurfaceMediaSource or GLTexture
-    // in the case of Surface).
-    // It is initialized to INVALID_BUFFER_SLOT,
-    // indicating that no buffer slot is currently bound to the texture. Note,
-    // however, that a value of INVALID_BUFFER_SLOT does not necessarily mean
-    // that no buffer is bound to the texture. A call to setBufferCount will
-    // reset mCurrentTexture to INVALID_BUFFER_SLOT.
-    int mCurrentSlot;
-
-    // mCurrentBuffers is a list of the graphic buffers that are being used by
-    // buffer consumer (i.e. the video encoder). It's possible that these
-    // buffers are not associated with any buffer slots, so we must track them
-    // separately.  Buffers are added to this list in read, and removed from
-    // this list in signalBufferReturned
-    Vector<sp<GraphicBuffer> > mCurrentBuffers;
-
-    size_t mNumPendingBuffers;
-
-#if DEBUG_PENDING_BUFFERS
-    Vector<MediaBuffer *> mPendingBuffers;
-#endif
-
-    // mCurrentTimestamp is the timestamp for the current texture. It
-    // gets set to mLastQueuedTimestamp each time updateTexImage is called.
-    int64_t mCurrentTimestamp;
-
-    // mFrameAvailableListener is the listener object that will be called when a
-    // new frame becomes available. If it is not NULL it will be called from
-    // queueBuffer.
-    sp<FrameAvailableListener> mFrameAvailableListener;
-
-    // mMutex is the mutex used to prevent concurrent access to the member
-    // variables of SurfaceMediaSource objects. It must be locked whenever the
-    // member variables are accessed.
-    mutable Mutex mMutex;
-
-    ////////////////////////// For MediaSource
-    // Set to a default of 30 fps if not specified by the client side
-    int32_t mFrameRate;
-
-    // mStarted is a flag to check if the recording is going on
-    bool mStarted;
-
-    // mNumFramesReceived indicates the number of frames recieved from
-    // the client side
-    int mNumFramesReceived;
-    // mNumFramesEncoded indicates the number of frames passed on to the
-    // encoder
-    int mNumFramesEncoded;
-
-    // mFirstFrameTimestamp is the timestamp of the first received frame.
-    // It is used to offset the output timestamps so recording starts at time 0.
-    int64_t mFirstFrameTimestamp;
-    // mStartTimeNs is the start time passed into the source at start, used to
-    // offset timestamps.
-    int64_t mStartTimeNs;
-
-    size_t mMaxAcquiredBufferCount;
-
-    bool mUseAbsoluteTimestamps;
-
-    // mFrameAvailableCondition condition used to indicate whether there
-    // is a frame available for dequeuing
-    Condition mFrameAvailableCondition;
-
-    Condition mMediaBuffersAvailableCondition;
-
-    // Allocate and return a new MediaBuffer and pass the ANW buffer as metadata into it.
-    void passMetadataBuffer_l(MediaBuffer **buffer, ANativeWindowBuffer *bufferHandle) const;
-
-    // Avoid copying and equating and default constructor
-    DISALLOW_EVIL_CONSTRUCTORS(SurfaceMediaSource);
-};
-
-// ----------------------------------------------------------------------------
-}; // namespace android
-
-#endif // ANDROID_GUI_SURFACEMEDIASOURCE_H
diff --git a/include/media/stagefright/SurfaceUtils.h b/include/media/stagefright/SurfaceUtils.h
deleted file mode 100644
index 13d580c..0000000
--- a/include/media/stagefright/SurfaceUtils.h
+++ /dev/null
@@ -1,39 +0,0 @@
-/*
- * Copyright 2015 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef SURFACE_UTILS_H_
-
-#define SURFACE_UTILS_H_
-
-#include <utils/Errors.h>
-
-struct ANativeWindow;
-
-namespace android {
-
-/**
- * Configures |nativeWindow| for given |width|x|height|, pixel |format|, |rotation| and |usage|.
- * If |reconnect| is true, reconnects to the native window before hand.
- * @return first error encountered, or NO_ERROR on success.
- */
-status_t setNativeWindowSizeFormatAndUsage(
-        ANativeWindow *nativeWindow /* nonnull */,
-        int width, int height, int format, int rotation, int usage, bool reconnect);
-status_t pushBlankBuffersToNativeWindow(ANativeWindow *nativeWindow /* nonnull */);
-
-} // namespace android
-
-#endif  // SURFACE_UTILS_H_
diff --git a/include/media/stagefright/Utils.h b/include/media/stagefright/Utils.h
deleted file mode 100644
index 8eff914..0000000
--- a/include/media/stagefright/Utils.h
+++ /dev/null
@@ -1,97 +0,0 @@
-/*
- * Copyright (C) 2009 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef UTILS_H_
-
-#define UTILS_H_
-
-#include <media/stagefright/foundation/AString.h>
-#include <stdint.h>
-#include <utils/Errors.h>
-#include <utils/RefBase.h>
-#include <system/audio.h>
-#include <media/MediaPlayerInterface.h>
-
-namespace android {
-
-#define FOURCC(c1, c2, c3, c4) \
-    ((c1) << 24 | (c2) << 16 | (c3) << 8 | (c4))
-
-uint16_t U16_AT(const uint8_t *ptr);
-uint32_t U32_AT(const uint8_t *ptr);
-uint64_t U64_AT(const uint8_t *ptr);
-
-uint16_t U16LE_AT(const uint8_t *ptr);
-uint32_t U32LE_AT(const uint8_t *ptr);
-uint64_t U64LE_AT(const uint8_t *ptr);
-
-uint64_t ntoh64(uint64_t x);
-uint64_t hton64(uint64_t x);
-
-class MetaData;
-struct AMessage;
-status_t convertMetaDataToMessage(
-        const sp<MetaData> &meta, sp<AMessage> *format);
-void convertMessageToMetaData(
-        const sp<AMessage> &format, sp<MetaData> &meta);
-
-// Returns a pointer to the next NAL start code in buffer of size |length| starting at |data|, or
-// a pointer to the end of the buffer if the start code is not found.
-// TODO: combine this with avc_utils::getNextNALUnit
-const uint8_t *findNextNalStartCode(const uint8_t *data, size_t length);
-
-AString MakeUserAgent();
-
-// Convert a MIME type to a AudioSystem::audio_format
-status_t mapMimeToAudioFormat(audio_format_t& format, const char* mime);
-
-// Convert a aac profile to a AudioSystem::audio_format
-void mapAACProfileToAudioFormat(audio_format_t& format, uint64_t eAacProfile);
-
-// Send information from MetaData to the HAL via AudioSink
-status_t sendMetaDataToHal(sp<MediaPlayerBase::AudioSink>& sink, const sp<MetaData>& meta);
-
-// Check whether the stream defined by meta can be offloaded to hardware
-bool canOffloadStream(const sp<MetaData>& meta, bool hasVideo,
-                      bool isStreaming, audio_stream_type_t streamType);
-
-AString uriDebugString(const AString &uri, bool incognito = false);
-
-struct HLSTime {
-    int32_t mSeq;
-    int64_t mTimeUs;
-    sp<AMessage> mMeta;
-
-    explicit HLSTime(const sp<AMessage> &meta = NULL);
-    int64_t getSegmentTimeUs() const;
-};
-
-bool operator <(const HLSTime &t0, const HLSTime &t1);
-
-// read and write various object to/from AMessage
-
-void writeToAMessage(const sp<AMessage> &msg, const AudioPlaybackRate &rate);
-void readFromAMessage(const sp<AMessage> &msg, AudioPlaybackRate *rate /* nonnull */);
-
-void writeToAMessage(const sp<AMessage> &msg, const AVSyncSettings &sync, float videoFpsHint);
-void readFromAMessage(
-        const sp<AMessage> &msg, AVSyncSettings *sync /* nonnull */, float *videoFps /* nonnull */);
-
-AString nameForFd(int fd);
-
-}  // namespace android
-
-#endif  // UTILS_H_
diff --git a/include/media/stagefright/foundation/ColorUtils.h b/include/media/stagefright/foundation/ColorUtils.h
deleted file mode 100644
index 2368b82..0000000
--- a/include/media/stagefright/foundation/ColorUtils.h
+++ /dev/null
@@ -1,226 +0,0 @@
-/*
- * Copyright (C) 2016 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef COLOR_UTILS_H_
-
-#define COLOR_UTILS_H_
-
-#include <stdint.h>
-
-#define STRINGIFY_ENUMS
-
-#include <media/stagefright/foundation/AMessage.h>
-
-#include <media/hardware/VideoAPI.h>
-#include <system/graphics.h>
-
-namespace android {
-
-struct ColorUtils {
-    /*
-     * Media-platform color constants. MediaCodec uses (an extended version of) platform-defined
-     * constants that are derived from HAL_DATASPACE, since these are directly exposed to the user.
-     * We extend the values to maintain the richer set of information defined inside media
-     * containers and bitstreams that are not supported by the platform. We also expect vendors
-     * to extend some of these values with vendor-specific values. These are separated into a
-     * vendor-extension section so they won't collide with future platform values.
-     */
-
-#define GET_HAL_ENUM(class, name) HAL_DATASPACE_##class##name
-#define GET_HAL_BITFIELD(class, name) (GET_HAL_ENUM(class, _##name) >> GET_HAL_ENUM(class, _SHIFT))
-
-    enum ColorStandard : uint32_t {
-        kColorStandardUnspecified =          GET_HAL_BITFIELD(STANDARD, UNSPECIFIED),
-        kColorStandardBT709 =                GET_HAL_BITFIELD(STANDARD, BT709),
-        kColorStandardBT601_625 =            GET_HAL_BITFIELD(STANDARD, BT601_625),
-        kColorStandardBT601_625_Unadjusted = GET_HAL_BITFIELD(STANDARD, BT601_625_UNADJUSTED),
-        kColorStandardBT601_525 =            GET_HAL_BITFIELD(STANDARD, BT601_525),
-        kColorStandardBT601_525_Unadjusted = GET_HAL_BITFIELD(STANDARD, BT601_525_UNADJUSTED),
-        kColorStandardBT2020 =               GET_HAL_BITFIELD(STANDARD, BT2020),
-        kColorStandardBT2020Constant =       GET_HAL_BITFIELD(STANDARD, BT2020_CONSTANT_LUMINANCE),
-        kColorStandardBT470M =               GET_HAL_BITFIELD(STANDARD, BT470M),
-        kColorStandardFilm =                 GET_HAL_BITFIELD(STANDARD, FILM),
-        kColorStandardMax =                  GET_HAL_BITFIELD(STANDARD, MASK),
-
-        /* This marks a section of color-standard values that are not supported by graphics HAL,
-           but track defined color primaries-matrix coefficient combinations in media.
-           These are stable for a given release. */
-        kColorStandardExtendedStart = kColorStandardMax + 1,
-
-        /* This marks a section of color-standard values that are not supported by graphics HAL
-           nor using media defined color primaries or matrix coefficients. These may differ per
-           device. */
-        kColorStandardVendorStart = 0x10000,
-    };
-
-    enum ColorTransfer : uint32_t  {
-        kColorTransferUnspecified = GET_HAL_BITFIELD(TRANSFER, UNSPECIFIED),
-        kColorTransferLinear =      GET_HAL_BITFIELD(TRANSFER, LINEAR),
-        kColorTransferSRGB =        GET_HAL_BITFIELD(TRANSFER, SRGB),
-        kColorTransferSMPTE_170M =  GET_HAL_BITFIELD(TRANSFER, SMPTE_170M),
-        kColorTransferGamma22 =     GET_HAL_BITFIELD(TRANSFER, GAMMA2_2),
-        kColorTransferGamma28 =     GET_HAL_BITFIELD(TRANSFER, GAMMA2_8),
-        kColorTransferST2084 =      GET_HAL_BITFIELD(TRANSFER, ST2084),
-        kColorTransferHLG =         GET_HAL_BITFIELD(TRANSFER, HLG),
-        kColorTransferMax =         GET_HAL_BITFIELD(TRANSFER, MASK),
-
-        /* This marks a section of color-transfer values that are not supported by graphics HAL,
-           but track media-defined color-transfer. These are stable for a given release. */
-        kColorTransferExtendedStart = kColorTransferMax + 1,
-
-        /* This marks a section of color-transfer values that are not supported by graphics HAL
-           nor defined by media. These may differ per device. */
-        kColorTransferVendorStart = 0x10000,
-    };
-
-    enum ColorRange : uint32_t  {
-        kColorRangeUnspecified = GET_HAL_BITFIELD(RANGE, UNSPECIFIED),
-        kColorRangeFull =        GET_HAL_BITFIELD(RANGE, FULL),
-        kColorRangeLimited =     GET_HAL_BITFIELD(RANGE, LIMITED),
-        kColorRangeMax =         GET_HAL_BITFIELD(RANGE, MASK),
-
-        /* This marks a section of color-transfer values that are not supported by graphics HAL,
-           but track media-defined color-transfer. These are stable for a given release. */
-        kColorRangeExtendedStart = kColorRangeMax + 1,
-
-        /* This marks a section of color-transfer values that are not supported by graphics HAL
-           nor defined by media. These may differ per device. */
-        kColorRangeVendorStart = 0x10000,
-    };
-
-#undef GET_HAL_BITFIELD
-#undef GET_HAL_ENUM
-
-    /*
-     * Static utilities for codec support
-     */
-
-    // using int32_t for media range/standard/transfers to denote extended ranges
-    // wrap methods change invalid aspects to the Unspecified value
-    static int32_t wrapColorAspectsIntoColorStandard(
-            ColorAspects::Primaries primaries, ColorAspects::MatrixCoeffs coeffs);
-    static int32_t wrapColorAspectsIntoColorRange(ColorAspects::Range range);
-    static int32_t wrapColorAspectsIntoColorTransfer(ColorAspects::Transfer transfer);
-
-    // unwrap methods change invalid aspects to the Other value
-    static status_t unwrapColorAspectsFromColorRange(
-            int32_t range, ColorAspects::Range *aspect);
-    static status_t unwrapColorAspectsFromColorTransfer(
-            int32_t transfer, ColorAspects::Transfer *aspect);
-    static status_t unwrapColorAspectsFromColorStandard(
-            int32_t standard,
-            ColorAspects::Primaries *primaries, ColorAspects::MatrixCoeffs *coeffs);
-
-    static status_t convertPlatformColorAspectsToCodecAspects(
-            int32_t range, int32_t standard, int32_t transfer, ColorAspects &aspects);
-    static status_t convertCodecColorAspectsToPlatformAspects(
-            const ColorAspects &aspects, int32_t *range, int32_t *standard, int32_t *transfer);
-
-    // converts Other values to Unspecified
-    static void convertCodecColorAspectsToIsoAspects(
-            const ColorAspects &aspects,
-            int32_t *primaries, int32_t *transfer, int32_t *coeffs, bool *fullRange);
-    // converts unsupported values to Other
-    static void convertIsoColorAspectsToCodecAspects(
-            int32_t primaries, int32_t transfer, int32_t coeffs, bool fullRange,
-            ColorAspects &aspects);
-
-    // updates Unspecified color aspects to their defaults based on the video size
-    static void setDefaultCodecColorAspectsIfNeeded(
-            ColorAspects &aspects, int32_t width, int32_t height);
-
-    // it returns the closest dataSpace for given color |aspects|. if |mayExpand| is true, it allows
-    // returning a larger dataSpace that contains the color space given by |aspects|, and is better
-    // suited to blending. This requires implicit color space conversion on part of the device.
-    static android_dataspace getDataSpaceForColorAspects(ColorAspects &aspects, bool mayExpand);
-
-    // converts |dataSpace| to a V0 enum, and returns true if dataSpace is an aspect-only value
-    static bool convertDataSpaceToV0(android_dataspace &dataSpace);
-
-    // compares |aspect| to |orig|. Returns |true| if any aspects have changed, except if they
-    // changed to Unspecified value. It also sets the changed values to Unspecified in |aspect|.
-    static bool checkIfAspectsChangedAndUnspecifyThem(
-            ColorAspects &aspects, const ColorAspects &orig, bool usePlatformAspects = false);
-
-    // finds color config in format, defaulting them to 0.
-    static void getColorConfigFromFormat(
-            const sp<AMessage> &format, int *range, int *standard, int *transfer);
-
-    // copies existing color config from |source| to |target|.
-    static void copyColorConfig(const sp<AMessage> &source, sp<AMessage> &target);
-
-    // finds color config in format as ColorAspects, defaulting them to 0.
-    static void getColorAspectsFromFormat(const sp<AMessage> &format, ColorAspects &aspects);
-
-    // writes |aspects| into format. iff |force| is false, Unspecified values are not
-    // written.
-    static void setColorAspectsIntoFormat(
-            const ColorAspects &aspects, sp<AMessage> &format, bool force = false);
-
-    // finds HDR metadata in format as HDRStaticInfo, defaulting them to 0.
-    // Return |true| if could find HDR metadata in format. Otherwise, return |false|.
-    static bool getHDRStaticInfoFromFormat(const sp<AMessage> &format, HDRStaticInfo *info);
-
-    // writes |info| into format.
-    static void setHDRStaticInfoIntoFormat(const HDRStaticInfo &info, sp<AMessage> &format);
-};
-
-inline static const char *asString(android::ColorUtils::ColorStandard i, const char *def = "??") {
-    using namespace android;
-    switch (i) {
-        case ColorUtils::kColorStandardUnspecified:          return "Unspecified";
-        case ColorUtils::kColorStandardBT709:                return "BT709";
-        case ColorUtils::kColorStandardBT601_625:            return "BT601_625";
-        case ColorUtils::kColorStandardBT601_625_Unadjusted: return "BT601_625_Unadjusted";
-        case ColorUtils::kColorStandardBT601_525:            return "BT601_525";
-        case ColorUtils::kColorStandardBT601_525_Unadjusted: return "BT601_525_Unadjusted";
-        case ColorUtils::kColorStandardBT2020:               return "BT2020";
-        case ColorUtils::kColorStandardBT2020Constant:       return "BT2020Constant";
-        case ColorUtils::kColorStandardBT470M:               return "BT470M";
-        case ColorUtils::kColorStandardFilm:                 return "Film";
-        default:                                            return def;
-    }
-}
-
-inline static const char *asString(android::ColorUtils::ColorTransfer i, const char *def = "??") {
-    using namespace android;
-    switch (i) {
-        case ColorUtils::kColorTransferUnspecified: return "Unspecified";
-        case ColorUtils::kColorTransferLinear:      return "Linear";
-        case ColorUtils::kColorTransferSRGB:        return "SRGB";
-        case ColorUtils::kColorTransferSMPTE_170M:  return "SMPTE_170M";
-        case ColorUtils::kColorTransferGamma22:     return "Gamma22";
-        case ColorUtils::kColorTransferGamma28:     return "Gamma28";
-        case ColorUtils::kColorTransferST2084:      return "ST2084";
-        case ColorUtils::kColorTransferHLG:         return "HLG";
-        default:                                   return def;
-    }
-}
-
-inline static const char *asString(android::ColorUtils::ColorRange i, const char *def = "??") {
-    using namespace android;
-    switch (i) {
-        case ColorUtils::kColorRangeUnspecified: return "Unspecified";
-        case ColorUtils::kColorRangeFull:        return "Full";
-        case ColorUtils::kColorRangeLimited:     return "Limited";
-        default:                                return def;
-    }
-}
-
-}  // namespace android
-
-#endif  // COLOR_UTILS_H_
-
diff --git a/include/ndk/NdkImage.h b/include/ndk/NdkImage.h
index 15eae40..40c1699 100644
--- a/include/ndk/NdkImage.h
+++ b/include/ndk/NdkImage.h
@@ -646,7 +646,9 @@
  *         <li>{@link AMEDIA_ERROR_UNSUPPORTED} if pixel stride is undefined for the format of input
  *                 image.</li>
  *         <li>{@link AMEDIA_ERROR_INVALID_OBJECT} if the {@link AImageReader} generated this
- *                 image has been deleted.</li></ul>
+ *                 image has been deleted.</li>
+ *         <li>{@link AMEDIA_IMGREADER_CANNOT_LOCK_IMAGE} if the {@link AImage} cannot be locked
+ *                 for CPU access.</li></ul>
  */
 media_status_t AImage_getPlanePixelStride(
         const AImage* image, int planeIdx, /*out*/int32_t* pixelStride);
@@ -671,7 +673,9 @@
  *         <li>{@link AMEDIA_ERROR_UNSUPPORTED} if row stride is undefined for the format of input
  *                 image.</li>
  *         <li>{@link AMEDIA_ERROR_INVALID_OBJECT} if the {@link AImageReader} generated this
- *                 image has been deleted.</li></ul>
+ *                 image has been deleted.</li>
+ *         <li>{@link AMEDIA_IMGREADER_CANNOT_LOCK_IMAGE} if the {@link AImage} cannot be locked
+ *                 for CPU access.</li></ul>
  */
 media_status_t AImage_getPlaneRowStride(
         const AImage* image, int planeIdx, /*out*/int32_t* rowStride);
@@ -693,7 +697,9 @@
  *         <li>{@link AMEDIA_ERROR_INVALID_PARAMETER} if image, data or dataLength is NULL, or
  *                 planeIdx is out of the range of [0, numOfPlanes - 1].</li>
  *         <li>{@link AMEDIA_ERROR_INVALID_OBJECT} if the {@link AImageReader} generated this
- *                 image has been deleted.</li></ul>
+ *                 image has been deleted.</li>
+ *         <li>{@link AMEDIA_IMGREADER_CANNOT_LOCK_IMAGE} if the {@link AImage} cannot be locked
+ *                 for CPU access.</li></ul>
  */
 media_status_t AImage_getPlaneData(
         const AImage* image, int planeIdx,
diff --git a/include/ndk/NdkMediaCodec.h b/include/ndk/NdkMediaCodec.h
index ad17321..a63f39a 100644
--- a/include/ndk/NdkMediaCodec.h
+++ b/include/ndk/NdkMediaCodec.h
@@ -29,8 +29,6 @@
 
 #include <sys/cdefs.h>
 
-#include <android/native_window.h>
-
 #include "NdkMediaCrypto.h"
 #include "NdkMediaError.h"
 #include "NdkMediaFormat.h"
@@ -39,6 +37,8 @@
 extern "C" {
 #endif
 
+struct ANativeWindow;
+
 #if __ANDROID_API__ >= 21
 
 struct AMediaCodec;
diff --git a/include/ndk/NdkMediaError.h b/include/ndk/NdkMediaError.h
index fb00b1d..9709a6f 100644
--- a/include/ndk/NdkMediaError.h
+++ b/include/ndk/NdkMediaError.h
@@ -60,6 +60,9 @@
     AMEDIA_IMGREADER_ERROR_BASE          = -30000,
     AMEDIA_IMGREADER_NO_BUFFER_AVAILABLE = AMEDIA_IMGREADER_ERROR_BASE - 1,
     AMEDIA_IMGREADER_MAX_IMAGES_ACQUIRED = AMEDIA_IMGREADER_ERROR_BASE - 2,
+    AMEDIA_IMGREADER_CANNOT_LOCK_IMAGE   = AMEDIA_IMGREADER_ERROR_BASE - 3,
+    AMEDIA_IMGREADER_CANNOT_UNLOCK_IMAGE = AMEDIA_IMGREADER_ERROR_BASE - 4,
+    AMEDIA_IMGREADER_IMAGE_NOT_LOCKED    = AMEDIA_IMGREADER_ERROR_BASE - 5,
 
 } media_status_t;
 
diff --git a/media/audioserver/Android.mk b/media/audioserver/Android.mk
index c620e7c..63fa16b 100644
--- a/media/audioserver/Android.mk
+++ b/media/audioserver/Android.mk
@@ -12,9 +12,11 @@
 	libcutils \
 	liblog \
 	libmedialogservice \
+	libnbaio \
 	libradioservice \
 	libsoundtriggerservice \
-	libutils
+	libutils \
+	libhwbinder
 
 LOCAL_C_INCLUDES := \
 	frameworks/av/services/audioflinger \
diff --git a/media/audioserver/audioserver.rc b/media/audioserver/audioserver.rc
index 80f78b6..9d42bce 100644
--- a/media/audioserver/audioserver.rc
+++ b/media/audioserver/audioserver.rc
@@ -5,3 +5,9 @@
     group audio camera drmrpc inet media mediadrm net_bt net_bt_admin net_bw_acct
     ioprio rt 4
     writepid /dev/cpuset/foreground/tasks /dev/stune/foreground/tasks
+    onrestart restart audio-hal-2-0
+
+on property:vts.native_server.on=1
+    stop audioserver
+on property:vts.native_server.on=0
+    start audioserver
diff --git a/media/audioserver/main_audioserver.cpp b/media/audioserver/main_audioserver.cpp
index 4a7a988..bcd0342 100644
--- a/media/audioserver/main_audioserver.cpp
+++ b/media/audioserver/main_audioserver.cpp
@@ -27,6 +27,10 @@
 #include <binder/IServiceManager.h>
 #include <utils/Log.h>
 
+// FIXME: remove when BUG 31748996 is fixed
+#include <hwbinder/IPCThreadState.h>
+#include <hwbinder/ProcessState.h>
+
 // from LOCAL_C_INCLUDES
 #include "AudioFlinger.h"
 #include "AudioPolicyService.h"
@@ -130,6 +134,10 @@
         RadioService::instantiate();
         SoundTriggerHwService::instantiate();
         ProcessState::self()->startThreadPool();
+
+// FIXME: remove when BUG 31748996 is fixed
+        android::hardware::ProcessState::self()->startThreadPool();
+
         IPCThreadState::self()->joinThreadPool();
     }
 }
diff --git a/media/libaaudio/Android.bp b/media/libaaudio/Android.bp
new file mode 100644
index 0000000..e41d62b
--- /dev/null
+++ b/media/libaaudio/Android.bp
@@ -0,0 +1,28 @@
+// Copyright (C) 2016 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+ndk_headers {
+    name: "libAAudio_headers",
+    from: "include",
+    to: "",
+    srcs: ["include/aaudio/*.h"],
+    license: "include/aaudio/NOTICE",
+}
+
+ndk_library {
+    name: "libaaudio.ndk",
+    symbol_file: "libaaudio.map.txt",
+    first_version: "26",
+    unversioned_until: "current",
+}
diff --git a/media/libaaudio/Android.mk b/media/libaaudio/Android.mk
new file mode 100644
index 0000000..5053e7d
--- /dev/null
+++ b/media/libaaudio/Android.mk
@@ -0,0 +1 @@
+include $(call all-subdir-makefiles)
diff --git a/media/libaaudio/Doxyfile b/media/libaaudio/Doxyfile
new file mode 100644
index 0000000..5cce2ca
--- /dev/null
+++ b/media/libaaudio/Doxyfile
@@ -0,0 +1,2313 @@
+# Doxyfile 1.8.6
+
+# This file describes the settings to be used by the documentation system
+# doxygen (www.doxygen.org) for a project.
+#
+# All text after a double hash (##) is considered a comment and is placed in
+# front of the TAG it is preceding.
+#
+# All text after a single hash (#) is considered a comment and will be ignored.
+# The format is:
+# TAG = value [value, ...]
+# For lists, items can also be appended using:
+# TAG += value [value, ...]
+# Values that contain spaces should be placed between quotes (\" \").
+
+#---------------------------------------------------------------------------
+# Project related configuration options
+#---------------------------------------------------------------------------
+
+# This tag specifies the encoding used for all characters in the config file
+# that follow. The default is UTF-8 which is also the encoding used for all text
+# before the first occurrence of this tag. Doxygen uses libiconv (or the iconv
+# built into libc) for the transcoding. See http://www.gnu.org/software/libiconv
+# for the list of possible encodings.
+# The default value is: UTF-8.
+
+DOXYFILE_ENCODING      = UTF-8
+
+# The PROJECT_NAME tag is a single word (or a sequence of words surrounded by
+# double-quotes, unless you are using Doxywizard) that should identify the
+# project for which the documentation is generated. This name is used in the
+# title of most generated pages and in a few other places.
+# The default value is: My Project.
+
+PROJECT_NAME           = "AAudio"
+
+# The PROJECT_NUMBER tag can be used to enter a project or revision number. This
+# could be handy for archiving the generated documentation or if some version
+# control system is used.
+
+PROJECT_NUMBER         =
+
+# Using the PROJECT_BRIEF tag one can provide an optional one line description
+# for a project that appears at the top of each page and should give viewer a
+# quick idea about the purpose of the project. Keep the description short.
+
+PROJECT_BRIEF          =
+
+# With the PROJECT_LOGO tag one can specify an logo or icon that is included in
+# the documentation. The maximum height of the logo should not exceed 55 pixels
+# and the maximum width should not exceed 200 pixels. Doxygen will copy the logo
+# to the output directory.
+
+PROJECT_LOGO           =
+
+# The OUTPUT_DIRECTORY tag is used to specify the (relative or absolute) path
+# into which the generated documentation will be written. If a relative path is
+# entered, it will be relative to the location where doxygen was started. If
+# left blank the current directory will be used.
+
+OUTPUT_DIRECTORY       =
+
+# If the CREATE_SUBDIRS tag is set to YES, then doxygen will create 4096 sub-
+# directories (in 2 levels) under the output directory of each output format and
+# will distribute the generated files over these directories. Enabling this
+# option can be useful when feeding doxygen a huge amount of source files, where
+# putting all generated files in the same directory would otherwise causes
+# performance problems for the file system.
+# The default value is: NO.
+
+CREATE_SUBDIRS         = NO
+
+# The OUTPUT_LANGUAGE tag is used to specify the language in which all
+# documentation generated by doxygen is written. Doxygen will use this
+# information to generate all constant output in the proper language.
+# Possible values are: Afrikaans, Arabic, Armenian, Brazilian, Catalan, Chinese,
+# Chinese-Traditional, Croatian, Czech, Danish, Dutch, English (United States),
+# Esperanto, Farsi (Persian), Finnish, French, German, Greek, Hungarian,
+# Indonesian, Italian, Japanese, Japanese-en (Japanese with English messages),
+# Korean, Korean-en (Korean with English messages), Latvian, Lithuanian,
+# Macedonian, Norwegian, Persian (Farsi), Polish, Portuguese, Romanian, Russian,
+# Serbian, Serbian-Cyrillic, Slovak, Slovene, Spanish, Swedish, Turkish,
+# Ukrainian and Vietnamese.
+# The default value is: English.
+
+OUTPUT_LANGUAGE        = English
+
+# If the BRIEF_MEMBER_DESC tag is set to YES doxygen will include brief member
+# descriptions after the members that are listed in the file and class
+# documentation (similar to Javadoc). Set to NO to disable this.
+# The default value is: YES.
+
+BRIEF_MEMBER_DESC      = YES
+
+# If the REPEAT_BRIEF tag is set to YES doxygen will prepend the brief
+# description of a member or function before the detailed description
+#
+# Note: If both HIDE_UNDOC_MEMBERS and BRIEF_MEMBER_DESC are set to NO, the
+# brief descriptions will be completely suppressed.
+# The default value is: YES.
+
+REPEAT_BRIEF           = YES
+
+# This tag implements a quasi-intelligent brief description abbreviator that is
+# used to form the text in various listings. Each string in this list, if found
+# as the leading text of the brief description, will be stripped from the text
+# and the result, after processing the whole list, is used as the annotated
+# text. Otherwise, the brief description is used as-is. If left blank, the
+# following values are used ($name is automatically replaced with the name of
+# the entity):The $name class, The $name widget, The $name file, is, provides,
+# specifies, contains, represents, a, an and the.
+
+ABBREVIATE_BRIEF       =
+
+# If the ALWAYS_DETAILED_SEC and REPEAT_BRIEF tags are both set to YES then
+# doxygen will generate a detailed section even if there is only a brief
+# description.
+# The default value is: NO.
+
+ALWAYS_DETAILED_SEC    = NO
+
+# If the INLINE_INHERITED_MEMB tag is set to YES, doxygen will show all
+# inherited members of a class in the documentation of that class as if those
+# members were ordinary class members. Constructors, destructors and assignment
+# operators of the base classes will not be shown.
+# The default value is: NO.
+
+INLINE_INHERITED_MEMB  = NO
+
+# If the FULL_PATH_NAMES tag is set to YES doxygen will prepend the full path
+# before files name in the file list and in the header files. If set to NO the
+# shortest path that makes the file name unique will be used
+# The default value is: YES.
+
+FULL_PATH_NAMES        = YES
+
+# The STRIP_FROM_PATH tag can be used to strip a user-defined part of the path.
+# Stripping is only done if one of the specified strings matches the left-hand
+# part of the path. The tag can be used to show relative paths in the file list.
+# If left blank the directory from which doxygen is run is used as the path to
+# strip.
+#
+# Note that you can specify absolute paths here, but also relative paths, which
+# will be relative from the directory where doxygen is started.
+# This tag requires that the tag FULL_PATH_NAMES is set to YES.
+
+STRIP_FROM_PATH        =
+
+# The STRIP_FROM_INC_PATH tag can be used to strip a user-defined part of the
+# path mentioned in the documentation of a class, which tells the reader which
+# header file to include in order to use a class. If left blank only the name of
+# the header file containing the class definition is used. Otherwise one should
+# specify the list of include paths that are normally passed to the compiler
+# using the -I flag.
+
+STRIP_FROM_INC_PATH    =
+
+# If the SHORT_NAMES tag is set to YES, doxygen will generate much shorter (but
+# less readable) file names. This can be useful is your file systems doesn't
+# support long names like on DOS, Mac, or CD-ROM.
+# The default value is: NO.
+
+SHORT_NAMES            = NO
+
+# If the JAVADOC_AUTOBRIEF tag is set to YES then doxygen will interpret the
+# first line (until the first dot) of a Javadoc-style comment as the brief
+# description. If set to NO, the Javadoc-style will behave just like regular Qt-
+# style comments (thus requiring an explicit @brief command for a brief
+# description.)
+# The default value is: NO.
+
+JAVADOC_AUTOBRIEF      = NO
+
+# If the QT_AUTOBRIEF tag is set to YES then doxygen will interpret the first
+# line (until the first dot) of a Qt-style comment as the brief description. If
+# set to NO, the Qt-style will behave just like regular Qt-style comments (thus
+# requiring an explicit \brief command for a brief description.)
+# The default value is: NO.
+
+QT_AUTOBRIEF           = NO
+
+# The MULTILINE_CPP_IS_BRIEF tag can be set to YES to make doxygen treat a
+# multi-line C++ special comment block (i.e. a block of //! or /// comments) as
+# a brief description. This used to be the default behavior. The new default is
+# to treat a multi-line C++ comment block as a detailed description. Set this
+# tag to YES if you prefer the old behavior instead.
+#
+# Note that setting this tag to YES also means that rational rose comments are
+# not recognized any more.
+# The default value is: NO.
+
+MULTILINE_CPP_IS_BRIEF = NO
+
+# If the INHERIT_DOCS tag is set to YES then an undocumented member inherits the
+# documentation from any documented member that it re-implements.
+# The default value is: YES.
+
+INHERIT_DOCS           = YES
+
+# If the SEPARATE_MEMBER_PAGES tag is set to YES, then doxygen will produce a
+# new page for each member. If set to NO, the documentation of a member will be
+# part of the file/class/namespace that contains it.
+# The default value is: NO.
+
+SEPARATE_MEMBER_PAGES  = NO
+
+# The TAB_SIZE tag can be used to set the number of spaces in a tab. Doxygen
+# uses this value to replace tabs by spaces in code fragments.
+# Minimum value: 1, maximum value: 16, default value: 4.
+
+TAB_SIZE               = 4
+
+# This tag can be used to specify a number of aliases that act as commands in
+# the documentation. An alias has the form:
+# name=value
+# For example adding
+# "sideeffect=@par Side Effects:\n"
+# will allow you to put the command \sideeffect (or @sideeffect) in the
+# documentation, which will result in a user-defined paragraph with heading
+# "Side Effects:". You can put \n's in the value part of an alias to insert
+# newlines.
+
+ALIASES                =
+
+# This tag can be used to specify a number of word-keyword mappings (TCL only).
+# A mapping has the form "name=value". For example adding "class=itcl::class"
+# will allow you to use the command class in the itcl::class meaning.
+
+TCL_SUBST              =
+
+# Set the OPTIMIZE_OUTPUT_FOR_C tag to YES if your project consists of C sources
+# only. Doxygen will then generate output that is more tailored for C. For
+# instance, some of the names that are used will be different. The list of all
+# members will be omitted, etc.
+# The default value is: NO.
+
+OPTIMIZE_OUTPUT_FOR_C  = NO
+
+# Set the OPTIMIZE_OUTPUT_JAVA tag to YES if your project consists of Java or
+# Python sources only. Doxygen will then generate output that is more tailored
+# for that language. For instance, namespaces will be presented as packages,
+# qualified scopes will look different, etc.
+# The default value is: NO.
+
+OPTIMIZE_OUTPUT_JAVA   = NO
+
+# Set the OPTIMIZE_FOR_FORTRAN tag to YES if your project consists of Fortran
+# sources. Doxygen will then generate output that is tailored for Fortran.
+# The default value is: NO.
+
+OPTIMIZE_FOR_FORTRAN   = NO
+
+# Set the OPTIMIZE_OUTPUT_VHDL tag to YES if your project consists of VHDL
+# sources. Doxygen will then generate output that is tailored for VHDL.
+# The default value is: NO.
+
+OPTIMIZE_OUTPUT_VHDL   = NO
+
+# Doxygen selects the parser to use depending on the extension of the files it
+# parses. With this tag you can assign which parser to use for a given
+# extension. Doxygen has a built-in mapping, but you can override or extend it
+# using this tag. The format is ext=language, where ext is a file extension, and
+# language is one of the parsers supported by doxygen: IDL, Java, Javascript,
+# C#, C, C++, D, PHP, Objective-C, Python, Fortran, VHDL. For instance to make
+# doxygen treat .inc files as Fortran files (default is PHP), and .f files as C
+# (default is Fortran), use: inc=Fortran f=C.
+#
+# Note For files without extension you can use no_extension as a placeholder.
+#
+# Note that for custom extensions you also need to set FILE_PATTERNS otherwise
+# the files are not read by doxygen.
+
+EXTENSION_MAPPING      =
+
+# If the MARKDOWN_SUPPORT tag is enabled then doxygen pre-processes all comments
+# according to the Markdown format, which allows for more readable
+# documentation. See http://daringfireball.net/projects/markdown/ for details.
+# The output of markdown processing is further processed by doxygen, so you can
+# mix doxygen, HTML, and XML commands with Markdown formatting. Disable only in
+# case of backward compatibilities issues.
+# The default value is: YES.
+
+MARKDOWN_SUPPORT       = YES
+
+# When enabled doxygen tries to link words that correspond to documented
+# classes, or namespaces to their corresponding documentation. Such a link can
+# be prevented in individual cases by by putting a % sign in front of the word
+# or globally by setting AUTOLINK_SUPPORT to NO.
+# The default value is: YES.
+
+AUTOLINK_SUPPORT       = YES
+
+# If you use STL classes (i.e. std::string, std::vector, etc.) but do not want
+# to include (a tag file for) the STL sources as input, then you should set this
+# tag to YES in order to let doxygen match functions declarations and
+# definitions whose arguments contain STL classes (e.g. func(std::string);
+# versus func(std::string) {}). This also make the inheritance and collaboration
+# diagrams that involve STL classes more complete and accurate.
+# The default value is: NO.
+
+BUILTIN_STL_SUPPORT    = NO
+
+# If you use Microsoft's C++/CLI language, you should set this option to YES to
+# enable parsing support.
+# The default value is: NO.
+
+CPP_CLI_SUPPORT        = NO
+
+# Set the SIP_SUPPORT tag to YES if your project consists of sip (see:
+# http://www.riverbankcomputing.co.uk/software/sip/intro) sources only. Doxygen
+# will parse them like normal C++ but will assume all classes use public instead
+# of private inheritance when no explicit protection keyword is present.
+# The default value is: NO.
+
+SIP_SUPPORT            = NO
+
+# For Microsoft's IDL there are propget and propput attributes to indicate
+# getter and setter methods for a property. Setting this option to YES will make
+# doxygen to replace the get and set methods by a property in the documentation.
+# This will only work if the methods are indeed getting or setting a simple
+# type. If this is not the case, or you want to show the methods anyway, you
+# should set this option to NO.
+# The default value is: YES.
+
+IDL_PROPERTY_SUPPORT   = YES
+
+# If member grouping is used in the documentation and the DISTRIBUTE_GROUP_DOC
+# tag is set to YES, then doxygen will reuse the documentation of the first
+# member in the group (if any) for the other members of the group. By default
+# all members of a group must be documented explicitly.
+# The default value is: NO.
+
+DISTRIBUTE_GROUP_DOC   = NO
+
+# Set the SUBGROUPING tag to YES to allow class member groups of the same type
+# (for instance a group of public functions) to be put as a subgroup of that
+# type (e.g. under the Public Functions section). Set it to NO to prevent
+# subgrouping. Alternatively, this can be done per class using the
+# \nosubgrouping command.
+# The default value is: YES.
+
+SUBGROUPING            = YES
+
+# When the INLINE_GROUPED_CLASSES tag is set to YES, classes, structs and unions
+# are shown inside the group in which they are included (e.g. using \ingroup)
+# instead of on a separate page (for HTML and Man pages) or section (for LaTeX
+# and RTF).
+#
+# Note that this feature does not work in combination with
+# SEPARATE_MEMBER_PAGES.
+# The default value is: NO.
+
+INLINE_GROUPED_CLASSES = NO
+
+# When the INLINE_SIMPLE_STRUCTS tag is set to YES, structs, classes, and unions
+# with only public data fields or simple typedef fields will be shown inline in
+# the documentation of the scope in which they are defined (i.e. file,
+# namespace, or group documentation), provided this scope is documented. If set
+# to NO, structs, classes, and unions are shown on a separate page (for HTML and
+# Man pages) or section (for LaTeX and RTF).
+# The default value is: NO.
+
+INLINE_SIMPLE_STRUCTS  = NO
+
+# When TYPEDEF_HIDES_STRUCT tag is enabled, a typedef of a struct, union, or
+# enum is documented as struct, union, or enum with the name of the typedef. So
+# typedef struct TypeS {} TypeT, will appear in the documentation as a struct
+# with name TypeT. When disabled the typedef will appear as a member of a file,
+# namespace, or class. And the struct will be named TypeS. This can typically be
+# useful for C code in case the coding convention dictates that all compound
+# types are typedef'ed and only the typedef is referenced, never the tag name.
+# The default value is: NO.
+
+TYPEDEF_HIDES_STRUCT   = NO
+
+# The size of the symbol lookup cache can be set using LOOKUP_CACHE_SIZE. This
+# cache is used to resolve symbols given their name and scope. Since this can be
+# an expensive process and often the same symbol appears multiple times in the
+# code, doxygen keeps a cache of pre-resolved symbols. If the cache is too small
+# doxygen will become slower. If the cache is too large, memory is wasted. The
+# cache size is given by this formula: 2^(16+LOOKUP_CACHE_SIZE). The valid range
+# is 0..9, the default is 0, corresponding to a cache size of 2^16=65536
+# symbols. At the end of a run doxygen will report the cache usage and suggest
+# the optimal cache size from a speed point of view.
+# Minimum value: 0, maximum value: 9, default value: 0.
+
+LOOKUP_CACHE_SIZE      = 0
+
+#---------------------------------------------------------------------------
+# Build related configuration options
+#---------------------------------------------------------------------------
+
+# If the EXTRACT_ALL tag is set to YES doxygen will assume all entities in
+# documentation are documented, even if no documentation was available. Private
+# class members and static file members will be hidden unless the
+# EXTRACT_PRIVATE respectively EXTRACT_STATIC tags are set to YES.
+# Note: This will also disable the warnings about undocumented members that are
+# normally produced when WARNINGS is set to YES.
+# The default value is: NO.
+
+EXTRACT_ALL            = YES
+
+# If the EXTRACT_PRIVATE tag is set to YES all private members of a class will
+# be included in the documentation.
+# The default value is: NO.
+
+EXTRACT_PRIVATE        = NO
+
+# If the EXTRACT_PACKAGE tag is set to YES all members with package or internal
+# scope will be included in the documentation.
+# The default value is: NO.
+
+EXTRACT_PACKAGE        = NO
+
+# If the EXTRACT_STATIC tag is set to YES all static members of a file will be
+# included in the documentation.
+# The default value is: NO.
+
+EXTRACT_STATIC         = YES
+
+# If the EXTRACT_LOCAL_CLASSES tag is set to YES classes (and structs) defined
+# locally in source files will be included in the documentation. If set to NO
+# only classes defined in header files are included. Does not have any effect
+# for Java sources.
+# The default value is: YES.
+
+EXTRACT_LOCAL_CLASSES  = YES
+
+# This flag is only useful for Objective-C code. When set to YES local methods,
+# which are defined in the implementation section but not in the interface are
+# included in the documentation. If set to NO only methods in the interface are
+# included.
+# The default value is: NO.
+
+EXTRACT_LOCAL_METHODS  = NO
+
+# If this flag is set to YES, the members of anonymous namespaces will be
+# extracted and appear in the documentation as a namespace called
+# 'anonymous_namespace{file}', where file will be replaced with the base name of
+# the file that contains the anonymous namespace. By default anonymous namespace
+# are hidden.
+# The default value is: NO.
+
+EXTRACT_ANON_NSPACES   = NO
+
+# If the HIDE_UNDOC_MEMBERS tag is set to YES, doxygen will hide all
+# undocumented members inside documented classes or files. If set to NO these
+# members will be included in the various overviews, but no documentation
+# section is generated. This option has no effect if EXTRACT_ALL is enabled.
+# The default value is: NO.
+
+HIDE_UNDOC_MEMBERS     = NO
+
+# If the HIDE_UNDOC_CLASSES tag is set to YES, doxygen will hide all
+# undocumented classes that are normally visible in the class hierarchy. If set
+# to NO these classes will be included in the various overviews. This option has
+# no effect if EXTRACT_ALL is enabled.
+# The default value is: NO.
+
+HIDE_UNDOC_CLASSES     = NO
+
+# If the HIDE_FRIEND_COMPOUNDS tag is set to YES, doxygen will hide all friend
+# (class|struct|union) declarations. If set to NO these declarations will be
+# included in the documentation.
+# The default value is: NO.
+
+HIDE_FRIEND_COMPOUNDS  = NO
+
+# If the HIDE_IN_BODY_DOCS tag is set to YES, doxygen will hide any
+# documentation blocks found inside the body of a function. If set to NO these
+# blocks will be appended to the function's detailed documentation block.
+# The default value is: NO.
+
+HIDE_IN_BODY_DOCS      = NO
+
+# The INTERNAL_DOCS tag determines if documentation that is typed after a
+# \internal command is included. If the tag is set to NO then the documentation
+# will be excluded. Set it to YES to include the internal documentation.
+# The default value is: NO.
+
+INTERNAL_DOCS          = NO
+
+# If the CASE_SENSE_NAMES tag is set to NO then doxygen will only generate file
+# names in lower-case letters. If set to YES upper-case letters are also
+# allowed. This is useful if you have classes or files whose names only differ
+# in case and if your file system supports case sensitive file names. Windows
+# and Mac users are advised to set this option to NO.
+# The default value is: system dependent.
+
+CASE_SENSE_NAMES       = YES
+
+# If the HIDE_SCOPE_NAMES tag is set to NO then doxygen will show members with
+# their full class and namespace scopes in the documentation. If set to YES the
+# scope will be hidden.
+# The default value is: NO.
+
+HIDE_SCOPE_NAMES       = NO
+
+# If the SHOW_INCLUDE_FILES tag is set to YES then doxygen will put a list of
+# the files that are included by a file in the documentation of that file.
+# The default value is: YES.
+
+SHOW_INCLUDE_FILES     = YES
+
+# If the SHOW_GROUPED_MEMB_INC tag is set to YES then Doxygen will add for each
+# grouped member an include statement to the documentation, telling the reader
+# which file to include in order to use the member.
+# The default value is: NO.
+
+SHOW_GROUPED_MEMB_INC  = NO
+
+# If the FORCE_LOCAL_INCLUDES tag is set to YES then doxygen will list include
+# files with double quotes in the documentation rather than with sharp brackets.
+# The default value is: NO.
+
+FORCE_LOCAL_INCLUDES   = NO
+
+# If the INLINE_INFO tag is set to YES then a tag [inline] is inserted in the
+# documentation for inline members.
+# The default value is: YES.
+
+INLINE_INFO            = YES
+
+# If the SORT_MEMBER_DOCS tag is set to YES then doxygen will sort the
+# (detailed) documentation of file and class members alphabetically by member
+# name. If set to NO the members will appear in declaration order.
+# The default value is: YES.
+
+SORT_MEMBER_DOCS       = YES
+
+# If the SORT_BRIEF_DOCS tag is set to YES then doxygen will sort the brief
+# descriptions of file, namespace and class members alphabetically by member
+# name. If set to NO the members will appear in declaration order. Note that
+# this will also influence the order of the classes in the class list.
+# The default value is: NO.
+
+SORT_BRIEF_DOCS        = NO
+
+# If the SORT_MEMBERS_CTORS_1ST tag is set to YES then doxygen will sort the
+# (brief and detailed) documentation of class members so that constructors and
+# destructors are listed first. If set to NO the constructors will appear in the
+# respective orders defined by SORT_BRIEF_DOCS and SORT_MEMBER_DOCS.
+# Note: If SORT_BRIEF_DOCS is set to NO this option is ignored for sorting brief
+# member documentation.
+# Note: If SORT_MEMBER_DOCS is set to NO this option is ignored for sorting
+# detailed member documentation.
+# The default value is: NO.
+
+SORT_MEMBERS_CTORS_1ST = NO
+
+# If the SORT_GROUP_NAMES tag is set to YES then doxygen will sort the hierarchy
+# of group names into alphabetical order. If set to NO the group names will
+# appear in their defined order.
+# The default value is: NO.
+
+SORT_GROUP_NAMES       = NO
+
+# If the SORT_BY_SCOPE_NAME tag is set to YES, the class list will be sorted by
+# fully-qualified names, including namespaces. If set to NO, the class list will
+# be sorted only by class name, not including the namespace part.
+# Note: This option is not very useful if HIDE_SCOPE_NAMES is set to YES.
+# Note: This option applies only to the class list, not to the alphabetical
+# list.
+# The default value is: NO.
+
+SORT_BY_SCOPE_NAME     = NO
+
+# If the STRICT_PROTO_MATCHING option is enabled and doxygen fails to do proper
+# type resolution of all parameters of a function it will reject a match between
+# the prototype and the implementation of a member function even if there is
+# only one candidate or it is obvious which candidate to choose by doing a
+# simple string match. By disabling STRICT_PROTO_MATCHING doxygen will still
+# accept a match between prototype and implementation in such cases.
+# The default value is: NO.
+
+STRICT_PROTO_MATCHING  = NO
+
+# The GENERATE_TODOLIST tag can be used to enable ( YES) or disable ( NO) the
+# todo list. This list is created by putting \todo commands in the
+# documentation.
+# The default value is: YES.
+
+GENERATE_TODOLIST      = YES
+
+# The GENERATE_TESTLIST tag can be used to enable ( YES) or disable ( NO) the
+# test list. This list is created by putting \test commands in the
+# documentation.
+# The default value is: YES.
+
+GENERATE_TESTLIST      = YES
+
+# The GENERATE_BUGLIST tag can be used to enable ( YES) or disable ( NO) the bug
+# list. This list is created by putting \bug commands in the documentation.
+# The default value is: YES.
+
+GENERATE_BUGLIST       = YES
+
+# The GENERATE_DEPRECATEDLIST tag can be used to enable ( YES) or disable ( NO)
+# the deprecated list. This list is created by putting \deprecated commands in
+# the documentation.
+# The default value is: YES.
+
+GENERATE_DEPRECATEDLIST= YES
+
+# The ENABLED_SECTIONS tag can be used to enable conditional documentation
+# sections, marked by \if <section_label> ... \endif and \cond <section_label>
+# ... \endcond blocks.
+
+ENABLED_SECTIONS       =
+
+# The MAX_INITIALIZER_LINES tag determines the maximum number of lines that the
+# initial value of a variable or macro / define can have for it to appear in the
+# documentation. If the initializer consists of more lines than specified here
+# it will be hidden. Use a value of 0 to hide initializers completely. The
+# appearance of the value of individual variables and macros / defines can be
+# controlled using \showinitializer or \hideinitializer command in the
+# documentation regardless of this setting.
+# Minimum value: 0, maximum value: 10000, default value: 30.
+
+MAX_INITIALIZER_LINES  = 30
+
+# Set the SHOW_USED_FILES tag to NO to disable the list of files generated at
+# the bottom of the documentation of classes and structs. If set to YES the list
+# will mention the files that were used to generate the documentation.
+# The default value is: YES.
+
+SHOW_USED_FILES        = YES
+
+# Set the SHOW_FILES tag to NO to disable the generation of the Files page. This
+# will remove the Files entry from the Quick Index and from the Folder Tree View
+# (if specified).
+# The default value is: YES.
+
+SHOW_FILES             = YES
+
+# Set the SHOW_NAMESPACES tag to NO to disable the generation of the Namespaces
+# page. This will remove the Namespaces entry from the Quick Index and from the
+# Folder Tree View (if specified).
+# The default value is: YES.
+
+SHOW_NAMESPACES        = YES
+
+# The FILE_VERSION_FILTER tag can be used to specify a program or script that
+# doxygen should invoke to get the current version for each file (typically from
+# the version control system). Doxygen will invoke the program by executing (via
+# popen()) the command command input-file, where command is the value of the
+# FILE_VERSION_FILTER tag, and input-file is the name of an input file provided
+# by doxygen. Whatever the program writes to standard output is used as the file
+# version. For an example see the documentation.
+
+FILE_VERSION_FILTER    =
+
+# The LAYOUT_FILE tag can be used to specify a layout file which will be parsed
+# by doxygen. The layout file controls the global structure of the generated
+# output files in an output format independent way. To create the layout file
+# that represents doxygen's defaults, run doxygen with the -l option. You can
+# optionally specify a file name after the option, if omitted DoxygenLayout.xml
+# will be used as the name of the layout file.
+#
+# Note that if you run doxygen from a directory containing a file called
+# DoxygenLayout.xml, doxygen will parse it automatically even if the LAYOUT_FILE
+# tag is left empty.
+
+LAYOUT_FILE            =
+
+# The CITE_BIB_FILES tag can be used to specify one or more bib files containing
+# the reference definitions. This must be a list of .bib files. The .bib
+# extension is automatically appended if omitted. This requires the bibtex tool
+# to be installed. See also http://en.wikipedia.org/wiki/BibTeX for more info.
+# For LaTeX the style of the bibliography can be controlled using
+# LATEX_BIB_STYLE. To use this feature you need bibtex and perl available in the
+# search path. Do not use file names with spaces, bibtex cannot handle them. See
+# also \cite for info how to create references.
+
+CITE_BIB_FILES         =
+
+#---------------------------------------------------------------------------
+# Configuration options related to warning and progress messages
+#---------------------------------------------------------------------------
+
+# The QUIET tag can be used to turn on/off the messages that are generated to
+# standard output by doxygen. If QUIET is set to YES this implies that the
+# messages are off.
+# The default value is: NO.
+
+QUIET                  = YES
+
+# The WARNINGS tag can be used to turn on/off the warning messages that are
+# generated to standard error ( stderr) by doxygen. If WARNINGS is set to YES
+# this implies that the warnings are on.
+#
+# Tip: Turn warnings on while writing the documentation.
+# The default value is: YES.
+
+WARNINGS               = YES
+
+# If the WARN_IF_UNDOCUMENTED tag is set to YES, then doxygen will generate
+# warnings for undocumented members. If EXTRACT_ALL is set to YES then this flag
+# will automatically be disabled.
+# The default value is: YES.
+
+WARN_IF_UNDOCUMENTED   = YES
+
+# If the WARN_IF_DOC_ERROR tag is set to YES, doxygen will generate warnings for
+# potential errors in the documentation, such as not documenting some parameters
+# in a documented function, or documenting parameters that don't exist or using
+# markup commands wrongly.
+# The default value is: YES.
+
+WARN_IF_DOC_ERROR      = YES
+
+# This WARN_NO_PARAMDOC option can be enabled to get warnings for functions that
+# are documented, but have no documentation for their parameters or return
+# value. If set to NO doxygen will only warn about wrong or incomplete parameter
+# documentation, but not about the absence of documentation.
+# The default value is: NO.
+
+WARN_NO_PARAMDOC       = NO
+
+# The WARN_FORMAT tag determines the format of the warning messages that doxygen
+# can produce. The string should contain the $file, $line, and $text tags, which
+# will be replaced by the file and line number from which the warning originated
+# and the warning text. Optionally the format may contain $version, which will
+# be replaced by the version of the file (if it could be obtained via
+# FILE_VERSION_FILTER)
+# The default value is: $file:$line: $text.
+
+WARN_FORMAT            = "$file:$line: $text"
+
+# The WARN_LOGFILE tag can be used to specify a file to which warning and error
+# messages should be written. If left blank the output is written to standard
+# error (stderr).
+
+WARN_LOGFILE           =
+
+#---------------------------------------------------------------------------
+# Configuration options related to the input files
+#---------------------------------------------------------------------------
+
+# The INPUT tag is used to specify the files and/or directories that contain
+# documented source files. You may enter file names like myfile.cpp or
+# directories like /usr/src/myproject. Separate the files or directories with
+# spaces.
+# Note: If this tag is empty the current directory is searched.
+
+INPUT                  = include/aaudio/AAudioDefinitions.h \
+                         include/aaudio/AAudio.h \
+                         src/legacy/AudioStreamTrack.h \
+                         src/legacy/AudioStreamRecord.h \
+                         src/legacy/AAudioLegacy.h \
+                         src/core/AudioStreamBuilder.h \
+                         src/core/AudioStream.h \
+                         src/utility/HandleTracker.h \
+                         src/utility/MonotonicCounter.h \
+                         src/utility/AudioClock.h \
+                         src/utility/AAudioUtilities.h
+
+# This tag can be used to specify the character encoding of the source files
+# that doxygen parses. Internally doxygen uses the UTF-8 encoding. Doxygen uses
+# libiconv (or the iconv built into libc) for the transcoding. See the libiconv
+# documentation (see: http://www.gnu.org/software/libiconv) for the list of
+# possible encodings.
+# The default value is: UTF-8.
+
+INPUT_ENCODING         = UTF-8
+
+# If the value of the INPUT tag contains directories, you can use the
+# FILE_PATTERNS tag to specify one or more wildcard patterns (like *.cpp and
+# *.h) to filter out the source-files in the directories. If left blank the
+# following patterns are tested:*.c, *.cc, *.cxx, *.cpp, *.c++, *.java, *.ii,
+# *.ixx, *.ipp, *.i++, *.inl, *.idl, *.ddl, *.odl, *.h, *.hh, *.hxx, *.hpp,
+# *.h++, *.cs, *.d, *.php, *.php4, *.php5, *.phtml, *.inc, *.m, *.markdown,
+# *.md, *.mm, *.dox, *.py, *.f90, *.f, *.for, *.tcl, *.vhd, *.vhdl, *.ucf,
+# *.qsf, *.as and *.js.
+
+FILE_PATTERNS          =
+
+# The RECURSIVE tag can be used to specify whether or not subdirectories should
+# be searched for input files as well.
+# The default value is: NO.
+
+RECURSIVE              = NO
+
+# The EXCLUDE tag can be used to specify files and/or directories that should be
+# excluded from the INPUT source files. This way you can easily exclude a
+# subdirectory from a directory tree whose root is specified with the INPUT tag.
+#
+# Note that relative paths are relative to the directory from which doxygen is
+# run.
+
+EXCLUDE                =
+
+# The EXCLUDE_SYMLINKS tag can be used to select whether or not files or
+# directories that are symbolic links (a Unix file system feature) are excluded
+# from the input.
+# The default value is: NO.
+
+EXCLUDE_SYMLINKS       = NO
+
+# If the value of the INPUT tag contains directories, you can use the
+# EXCLUDE_PATTERNS tag to specify one or more wildcard patterns to exclude
+# certain files from those directories.
+#
+# Note that the wildcards are matched against the file with absolute path, so to
+# exclude all test directories for example use the pattern */test/*
+
+EXCLUDE_PATTERNS       =
+
+# The EXCLUDE_SYMBOLS tag can be used to specify one or more symbol names
+# (namespaces, classes, functions, etc.) that should be excluded from the
+# output. The symbol name can be a fully qualified name, a word, or if the
+# wildcard * is used, a substring. Examples: ANamespace, AClass,
+# AClass::ANamespace, ANamespace::*Test
+#
+# Note that the wildcards are matched against the file with absolute path, so to
+# exclude all test directories use the pattern */test/*
+
+EXCLUDE_SYMBOLS        =
+
+# The EXAMPLE_PATH tag can be used to specify one or more files or directories
+# that contain example code fragments that are included (see the \include
+# command).
+
+EXAMPLE_PATH           =
+
+# If the value of the EXAMPLE_PATH tag contains directories, you can use the
+# EXAMPLE_PATTERNS tag to specify one or more wildcard pattern (like *.cpp and
+# *.h) to filter out the source-files in the directories. If left blank all
+# files are included.
+
+EXAMPLE_PATTERNS       =
+
+# If the EXAMPLE_RECURSIVE tag is set to YES then subdirectories will be
+# searched for input files to be used with the \include or \dontinclude commands
+# irrespective of the value of the RECURSIVE tag.
+# The default value is: NO.
+
+EXAMPLE_RECURSIVE      = NO
+
+# The IMAGE_PATH tag can be used to specify one or more files or directories
+# that contain images that are to be included in the documentation (see the
+# \image command).
+
+IMAGE_PATH             =
+
+# The INPUT_FILTER tag can be used to specify a program that doxygen should
+# invoke to filter for each input file. Doxygen will invoke the filter program
+# by executing (via popen()) the command:
+#
+# <filter> <input-file>
+#
+# where <filter> is the value of the INPUT_FILTER tag, and <input-file> is the
+# name of an input file. Doxygen will then use the output that the filter
+# program writes to standard output. If FILTER_PATTERNS is specified, this tag
+# will be ignored.
+#
+# Note that the filter must not add or remove lines; it is applied before the
+# code is scanned, but not when the output code is generated. If lines are added
+# or removed, the anchors will not be placed correctly.
+
+INPUT_FILTER           =
+
+# The FILTER_PATTERNS tag can be used to specify filters on a per file pattern
+# basis. Doxygen will compare the file name with each pattern and apply the
+# filter if there is a match. The filters are a list of the form: pattern=filter
+# (like *.cpp=my_cpp_filter). See INPUT_FILTER for further information on how
+# filters are used. If the FILTER_PATTERNS tag is empty or if none of the
+# patterns match the file name, INPUT_FILTER is applied.
+
+FILTER_PATTERNS        =
+
+# If the FILTER_SOURCE_FILES tag is set to YES, the input filter (if set using
+# INPUT_FILTER ) will also be used to filter the input files that are used for
+# producing the source files to browse (i.e. when SOURCE_BROWSER is set to YES).
+# The default value is: NO.
+
+FILTER_SOURCE_FILES    = NO
+
+# The FILTER_SOURCE_PATTERNS tag can be used to specify source filters per file
+# pattern. A pattern will override the setting for FILTER_PATTERN (if any) and
+# it is also possible to disable source filtering for a specific pattern using
+# *.ext= (so without naming a filter).
+# This tag requires that the tag FILTER_SOURCE_FILES is set to YES.
+
+FILTER_SOURCE_PATTERNS =
+
+# If the USE_MDFILE_AS_MAINPAGE tag refers to the name of a markdown file that
+# is part of the input, its contents will be placed on the main page
+# (index.html). This can be useful if you have a project on for instance GitHub
+# and want to reuse the introduction page also for the doxygen output.
+
+USE_MDFILE_AS_MAINPAGE =
+
+#---------------------------------------------------------------------------
+# Configuration options related to source browsing
+#---------------------------------------------------------------------------
+
+# If the SOURCE_BROWSER tag is set to YES then a list of source files will be
+# generated. Documented entities will be cross-referenced with these sources.
+#
+# Note: To get rid of all source code in the generated output, make sure that
+# also VERBATIM_HEADERS is set to NO.
+# The default value is: NO.
+
+SOURCE_BROWSER         = NO
+
+# Setting the INLINE_SOURCES tag to YES will include the body of functions,
+# classes and enums directly into the documentation.
+# The default value is: NO.
+
+INLINE_SOURCES         = NO
+
+# Setting the STRIP_CODE_COMMENTS tag to YES will instruct doxygen to hide any
+# special comment blocks from generated source code fragments. Normal C, C++ and
+# Fortran comments will always remain visible.
+# The default value is: YES.
+
+STRIP_CODE_COMMENTS    = YES
+
+# If the REFERENCED_BY_RELATION tag is set to YES then for each documented
+# function all documented functions referencing it will be listed.
+# The default value is: NO.
+
+REFERENCED_BY_RELATION = NO
+
+# If the REFERENCES_RELATION tag is set to YES then for each documented function
+# all documented entities called/used by that function will be listed.
+# The default value is: NO.
+
+REFERENCES_RELATION    = NO
+
+# If the REFERENCES_LINK_SOURCE tag is set to YES and SOURCE_BROWSER tag is set
+# to YES, then the hyperlinks from functions in REFERENCES_RELATION and
+# REFERENCED_BY_RELATION lists will link to the source code. Otherwise they will
+# link to the documentation.
+# The default value is: YES.
+
+REFERENCES_LINK_SOURCE = YES
+
+# If SOURCE_TOOLTIPS is enabled (the default) then hovering a hyperlink in the
+# source code will show a tooltip with additional information such as prototype,
+# brief description and links to the definition and documentation. Since this
+# will make the HTML file larger and loading of large files a bit slower, you
+# can opt to disable this feature.
+# The default value is: YES.
+# This tag requires that the tag SOURCE_BROWSER is set to YES.
+
+SOURCE_TOOLTIPS        = YES
+
+# If the USE_HTAGS tag is set to YES then the references to source code will
+# point to the HTML generated by the htags(1) tool instead of doxygen built-in
+# source browser. The htags tool is part of GNU's global source tagging system
+# (see http://www.gnu.org/software/global/global.html). You will need version
+# 4.8.6 or higher.
+#
+# To use it do the following:
+# - Install the latest version of global
+# - Enable SOURCE_BROWSER and USE_HTAGS in the config file
+# - Make sure the INPUT points to the root of the source tree
+# - Run doxygen as normal
+#
+# Doxygen will invoke htags (and that will in turn invoke gtags), so these
+# tools must be available from the command line (i.e. in the search path).
+#
+# The result: instead of the source browser generated by doxygen, the links to
+# source code will now point to the output of htags.
+# The default value is: NO.
+# This tag requires that the tag SOURCE_BROWSER is set to YES.
+
+USE_HTAGS              = NO
+
+# If the VERBATIM_HEADERS tag is set the YES then doxygen will generate a
+# verbatim copy of the header file for each class for which an include is
+# specified. Set to NO to disable this.
+# See also: Section \class.
+# The default value is: YES.
+
+VERBATIM_HEADERS       = YES
+
+#---------------------------------------------------------------------------
+# Configuration options related to the alphabetical class index
+#---------------------------------------------------------------------------
+
+# If the ALPHABETICAL_INDEX tag is set to YES, an alphabetical index of all
+# compounds will be generated. Enable this if the project contains a lot of
+# classes, structs, unions or interfaces.
+# The default value is: YES.
+
+ALPHABETICAL_INDEX     = YES
+
+# The COLS_IN_ALPHA_INDEX tag can be used to specify the number of columns in
+# which the alphabetical index list will be split.
+# Minimum value: 1, maximum value: 20, default value: 5.
+# This tag requires that the tag ALPHABETICAL_INDEX is set to YES.
+
+COLS_IN_ALPHA_INDEX    = 5
+
+# In case all classes in a project start with a common prefix, all classes will
+# be put under the same header in the alphabetical index. The IGNORE_PREFIX tag
+# can be used to specify a prefix (or a list of prefixes) that should be ignored
+# while generating the index headers.
+# This tag requires that the tag ALPHABETICAL_INDEX is set to YES.
+
+IGNORE_PREFIX          =
+
+#---------------------------------------------------------------------------
+# Configuration options related to the HTML output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_HTML tag is set to YES doxygen will generate HTML output
+# The default value is: YES.
+
+GENERATE_HTML          = YES
+
+# The HTML_OUTPUT tag is used to specify where the HTML docs will be put. If a
+# relative path is entered the value of OUTPUT_DIRECTORY will be put in front of
+# it.
+# The default directory is: html.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_OUTPUT            = html
+
+# The HTML_FILE_EXTENSION tag can be used to specify the file extension for each
+# generated HTML page (for example: .htm, .php, .asp).
+# The default value is: .html.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_FILE_EXTENSION    = .html
+
+# The HTML_HEADER tag can be used to specify a user-defined HTML header file for
+# each generated HTML page. If the tag is left blank doxygen will generate a
+# standard header.
+#
+# To get valid HTML the header file that includes any scripts and style sheets
+# that doxygen needs, which is dependent on the configuration options used (e.g.
+# the setting GENERATE_TREEVIEW). It is highly recommended to start with a
+# default header using
+# doxygen -w html new_header.html new_footer.html new_stylesheet.css
+# YourConfigFile
+# and then modify the file new_header.html. See also section "Doxygen usage"
+# for information on how to generate the default header that doxygen normally
+# uses.
+# Note: The header is subject to change so you typically have to regenerate the
+# default header when upgrading to a newer version of doxygen. For a description
+# of the possible markers and block names see the documentation.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_HEADER            =
+
+# The HTML_FOOTER tag can be used to specify a user-defined HTML footer for each
+# generated HTML page. If the tag is left blank doxygen will generate a standard
+# footer. See HTML_HEADER for more information on how to generate a default
+# footer and what special commands can be used inside the footer. See also
+# section "Doxygen usage" for information on how to generate the default footer
+# that doxygen normally uses.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_FOOTER            =
+
+# The HTML_STYLESHEET tag can be used to specify a user-defined cascading style
+# sheet that is used by each HTML page. It can be used to fine-tune the look of
+# the HTML output. If left blank doxygen will generate a default style sheet.
+# See also section "Doxygen usage" for information on how to generate the style
+# sheet that doxygen normally uses.
+# Note: It is recommended to use HTML_EXTRA_STYLESHEET instead of this tag, as
+# it is more robust and this tag (HTML_STYLESHEET) will in the future become
+# obsolete.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_STYLESHEET        =
+
+# The HTML_EXTRA_STYLESHEET tag can be used to specify an additional user-
+# defined cascading style sheet that is included after the standard style sheets
+# created by doxygen. Using this option one can overrule certain style aspects.
+# This is preferred over using HTML_STYLESHEET since it does not replace the
+# standard style sheet and is therefor more robust against future updates.
+# Doxygen will copy the style sheet file to the output directory. For an example
+# see the documentation.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_EXTRA_STYLESHEET  =
+
+# The HTML_EXTRA_FILES tag can be used to specify one or more extra images or
+# other source files which should be copied to the HTML output directory. Note
+# that these files will be copied to the base HTML output directory. Use the
+# $relpath^ marker in the HTML_HEADER and/or HTML_FOOTER files to load these
+# files. In the HTML_STYLESHEET file, use the file name only. Also note that the
+# files will be copied as-is; there are no commands or markers available.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_EXTRA_FILES       =
+
+# The HTML_COLORSTYLE_HUE tag controls the color of the HTML output. Doxygen
+# will adjust the colors in the stylesheet and background images according to
+# this color. Hue is specified as an angle on a colorwheel, see
+# http://en.wikipedia.org/wiki/Hue for more information. For instance the value
+# 0 represents red, 60 is yellow, 120 is green, 180 is cyan, 240 is blue, 300
+# purple, and 360 is red again.
+# Minimum value: 0, maximum value: 359, default value: 220.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_COLORSTYLE_HUE    = 220
+
+# The HTML_COLORSTYLE_SAT tag controls the purity (or saturation) of the colors
+# in the HTML output. For a value of 0 the output will use grayscales only. A
+# value of 255 will produce the most vivid colors.
+# Minimum value: 0, maximum value: 255, default value: 100.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_COLORSTYLE_SAT    = 100
+
+# The HTML_COLORSTYLE_GAMMA tag controls the gamma correction applied to the
+# luminance component of the colors in the HTML output. Values below 100
+# gradually make the output lighter, whereas values above 100 make the output
+# darker. The value divided by 100 is the actual gamma applied, so 80 represents
+# a gamma of 0.8, The value 220 represents a gamma of 2.2, and 100 does not
+# change the gamma.
+# Minimum value: 40, maximum value: 240, default value: 80.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_COLORSTYLE_GAMMA  = 80
+
+# If the HTML_TIMESTAMP tag is set to YES then the footer of each generated HTML
+# page will contain the date and time when the page was generated. Setting this
+# to NO can help when comparing the output of multiple runs.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_TIMESTAMP         = YES
+
+# If the HTML_DYNAMIC_SECTIONS tag is set to YES then the generated HTML
+# documentation will contain sections that can be hidden and shown after the
+# page has loaded.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_DYNAMIC_SECTIONS  = NO
+
+# With HTML_INDEX_NUM_ENTRIES one can control the preferred number of entries
+# shown in the various tree structured indices initially; the user can expand
+# and collapse entries dynamically later on. Doxygen will expand the tree to
+# such a level that at most the specified number of entries are visible (unless
+# a fully collapsed tree already exceeds this amount). So setting the number of
+# entries 1 will produce a full collapsed tree by default. 0 is a special value
+# representing an infinite number of entries and will result in a full expanded
+# tree by default.
+# Minimum value: 0, maximum value: 9999, default value: 100.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_INDEX_NUM_ENTRIES = 100
+
+# If the GENERATE_DOCSET tag is set to YES, additional index files will be
+# generated that can be used as input for Apple's Xcode 3 integrated development
+# environment (see: http://developer.apple.com/tools/xcode/), introduced with
+# OSX 10.5 (Leopard). To create a documentation set, doxygen will generate a
+# Makefile in the HTML output directory. Running make will produce the docset in
+# that directory and running make install will install the docset in
+# ~/Library/Developer/Shared/Documentation/DocSets so that Xcode will find it at
+# startup. See http://developer.apple.com/tools/creatingdocsetswithdoxygen.html
+# for more information.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+GENERATE_DOCSET        = NO
+
+# This tag determines the name of the docset feed. A documentation feed provides
+# an umbrella under which multiple documentation sets from a single provider
+# (such as a company or product suite) can be grouped.
+# The default value is: Doxygen generated docs.
+# This tag requires that the tag GENERATE_DOCSET is set to YES.
+
+DOCSET_FEEDNAME        = "Doxygen generated docs"
+
+# This tag specifies a string that should uniquely identify the documentation
+# set bundle. This should be a reverse domain-name style string, e.g.
+# com.mycompany.MyDocSet. Doxygen will append .docset to the name.
+# The default value is: org.doxygen.Project.
+# This tag requires that the tag GENERATE_DOCSET is set to YES.
+
+DOCSET_BUNDLE_ID       = org.doxygen.Project
+
+# The DOCSET_PUBLISHER_ID tag specifies a string that should uniquely identify
+# the documentation publisher. This should be a reverse domain-name style
+# string, e.g. com.mycompany.MyDocSet.documentation.
+# The default value is: org.doxygen.Publisher.
+# This tag requires that the tag GENERATE_DOCSET is set to YES.
+
+DOCSET_PUBLISHER_ID    = org.doxygen.Publisher
+
+# The DOCSET_PUBLISHER_NAME tag identifies the documentation publisher.
+# The default value is: Publisher.
+# This tag requires that the tag GENERATE_DOCSET is set to YES.
+
+DOCSET_PUBLISHER_NAME  = Publisher
+
+# If the GENERATE_HTMLHELP tag is set to YES then doxygen generates three
+# additional HTML index files: index.hhp, index.hhc, and index.hhk. The
+# index.hhp is a project file that can be read by Microsoft's HTML Help Workshop
+# (see: http://www.microsoft.com/en-us/download/details.aspx?id=21138) on
+# Windows.
+#
+# The HTML Help Workshop contains a compiler that can convert all HTML output
+# generated by doxygen into a single compiled HTML file (.chm). Compiled HTML
+# files are now used as the Windows 98 help format, and will replace the old
+# Windows help format (.hlp) on all Windows platforms in the future. Compressed
+# HTML files also contain an index, a table of contents, and you can search for
+# words in the documentation. The HTML workshop also contains a viewer for
+# compressed HTML files.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+GENERATE_HTMLHELP      = NO
+
+# The CHM_FILE tag can be used to specify the file name of the resulting .chm
+# file. You can add a path in front of the file if the result should not be
+# written to the html output directory.
+# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
+
+CHM_FILE               =
+
+# The HHC_LOCATION tag can be used to specify the location (absolute path
+# including file name) of the HTML help compiler ( hhc.exe). If non-empty
+# doxygen will try to run the HTML help compiler on the generated index.hhp.
+# The file has to be specified with full path.
+# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
+
+HHC_LOCATION           =
+
+# The GENERATE_CHI flag controls if a separate .chi index file is generated (
+# YES) or that it should be included in the master .chm file ( NO).
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
+
+GENERATE_CHI           = NO
+
+# The CHM_INDEX_ENCODING is used to encode HtmlHelp index ( hhk), content ( hhc)
+# and project file content.
+# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
+
+CHM_INDEX_ENCODING     =
+
+# The BINARY_TOC flag controls whether a binary table of contents is generated (
+# YES) or a normal table of contents ( NO) in the .chm file.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
+
+BINARY_TOC             = NO
+
+# The TOC_EXPAND flag can be set to YES to add extra items for group members to
+# the table of contents of the HTML help documentation and to the tree view.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
+
+TOC_EXPAND             = NO
+
+# If the GENERATE_QHP tag is set to YES and both QHP_NAMESPACE and
+# QHP_VIRTUAL_FOLDER are set, an additional index file will be generated that
+# can be used as input for Qt's qhelpgenerator to generate a Qt Compressed Help
+# (.qch) of the generated HTML documentation.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+GENERATE_QHP           = NO
+
+# If the QHG_LOCATION tag is specified, the QCH_FILE tag can be used to specify
+# the file name of the resulting .qch file. The path specified is relative to
+# the HTML output folder.
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QCH_FILE               =
+
+# The QHP_NAMESPACE tag specifies the namespace to use when generating Qt Help
+# Project output. For more information please see Qt Help Project / Namespace
+# (see: http://qt-project.org/doc/qt-4.8/qthelpproject.html#namespace).
+# The default value is: org.doxygen.Project.
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QHP_NAMESPACE          = org.doxygen.Project
+
+# The QHP_VIRTUAL_FOLDER tag specifies the namespace to use when generating Qt
+# Help Project output. For more information please see Qt Help Project / Virtual
+# Folders (see: http://qt-project.org/doc/qt-4.8/qthelpproject.html#virtual-
+# folders).
+# The default value is: doc.
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QHP_VIRTUAL_FOLDER     = doc
+
+# If the QHP_CUST_FILTER_NAME tag is set, it specifies the name of a custom
+# filter to add. For more information please see Qt Help Project / Custom
+# Filters (see: http://qt-project.org/doc/qt-4.8/qthelpproject.html#custom-
+# filters).
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QHP_CUST_FILTER_NAME   =
+
+# The QHP_CUST_FILTER_ATTRS tag specifies the list of the attributes of the
+# custom filter to add. For more information please see Qt Help Project / Custom
+# Filters (see: http://qt-project.org/doc/qt-4.8/qthelpproject.html#custom-
+# filters).
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QHP_CUST_FILTER_ATTRS  =
+
+# The QHP_SECT_FILTER_ATTRS tag specifies the list of the attributes this
+# project's filter section matches. Qt Help Project / Filter Attributes (see:
+# http://qt-project.org/doc/qt-4.8/qthelpproject.html#filter-attributes).
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QHP_SECT_FILTER_ATTRS  =
+
+# The QHG_LOCATION tag can be used to specify the location of Qt's
+# qhelpgenerator. If non-empty doxygen will try to run qhelpgenerator on the
+# generated .qhp file.
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QHG_LOCATION           =
+
+# If the GENERATE_ECLIPSEHELP tag is set to YES, additional index files will be
+# generated, together with the HTML files, they form an Eclipse help plugin. To
+# install this plugin and make it available under the help contents menu in
+# Eclipse, the contents of the directory containing the HTML and XML files needs
+# to be copied into the plugins directory of eclipse. The name of the directory
+# within the plugins directory should be the same as the ECLIPSE_DOC_ID value.
+# After copying Eclipse needs to be restarted before the help appears.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+GENERATE_ECLIPSEHELP   = NO
+
+# A unique identifier for the Eclipse help plugin. When installing the plugin
+# the directory name containing the HTML and XML files should also have this
+# name. Each documentation set should have its own identifier.
+# The default value is: org.doxygen.Project.
+# This tag requires that the tag GENERATE_ECLIPSEHELP is set to YES.
+
+ECLIPSE_DOC_ID         = org.doxygen.Project
+
+# If you want full control over the layout of the generated HTML pages it might
+# be necessary to disable the index and replace it with your own. The
+# DISABLE_INDEX tag can be used to turn on/off the condensed index (tabs) at top
+# of each HTML page. A value of NO enables the index and the value YES disables
+# it. Since the tabs in the index contain the same information as the navigation
+# tree, you can set this option to YES if you also set GENERATE_TREEVIEW to YES.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+DISABLE_INDEX          = NO
+
+# The GENERATE_TREEVIEW tag is used to specify whether a tree-like index
+# structure should be generated to display hierarchical information. If the tag
+# value is set to YES, a side panel will be generated containing a tree-like
+# index structure (just like the one that is generated for HTML Help). For this
+# to work a browser that supports JavaScript, DHTML, CSS and frames is required
+# (i.e. any modern browser). Windows users are probably better off using the
+# HTML help feature. Via custom stylesheets (see HTML_EXTRA_STYLESHEET) one can
+# further fine-tune the look of the index. As an example, the default style
+# sheet generated by doxygen has an example that shows how to put an image at
+# the root of the tree instead of the PROJECT_NAME. Since the tree basically has
+# the same information as the tab index, you could consider setting
+# DISABLE_INDEX to YES when enabling this option.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+GENERATE_TREEVIEW      = NO
+
+# The ENUM_VALUES_PER_LINE tag can be used to set the number of enum values that
+# doxygen will group on one line in the generated HTML documentation.
+#
+# Note that a value of 0 will completely suppress the enum values from appearing
+# in the overview section.
+# Minimum value: 0, maximum value: 20, default value: 4.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+ENUM_VALUES_PER_LINE   = 4
+
+# If the treeview is enabled (see GENERATE_TREEVIEW) then this tag can be used
+# to set the initial width (in pixels) of the frame in which the tree is shown.
+# Minimum value: 0, maximum value: 1500, default value: 250.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+TREEVIEW_WIDTH         = 250
+
+# When the EXT_LINKS_IN_WINDOW option is set to YES doxygen will open links to
+# external symbols imported via tag files in a separate window.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+EXT_LINKS_IN_WINDOW    = NO
+
+# Use this tag to change the font size of LaTeX formulas included as images in
+# the HTML documentation. When you change the font size after a successful
+# doxygen run you need to manually remove any form_*.png images from the HTML
+# output directory to force them to be regenerated.
+# Minimum value: 8, maximum value: 50, default value: 10.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+FORMULA_FONTSIZE       = 10
+
+# Use the FORMULA_TRANPARENT tag to determine whether or not the images
+# generated for formulas are transparent PNGs. Transparent PNGs are not
+# supported properly for IE 6.0, but are supported on all modern browsers.
+#
+# Note that when changing this option you need to delete any form_*.png files in
+# the HTML output directory before the changes have effect.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+FORMULA_TRANSPARENT    = YES
+
+# Enable the USE_MATHJAX option to render LaTeX formulas using MathJax (see
+# http://www.mathjax.org) which uses client side Javascript for the rendering
+# instead of using prerendered bitmaps. Use this if you do not have LaTeX
+# installed or if you want to formulas look prettier in the HTML output. When
+# enabled you may also need to install MathJax separately and configure the path
+# to it using the MATHJAX_RELPATH option.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+USE_MATHJAX            = NO
+
+# When MathJax is enabled you can set the default output format to be used for
+# the MathJax output. See the MathJax site (see:
+# http://docs.mathjax.org/en/latest/output.html) for more details.
+# Possible values are: HTML-CSS (which is slower, but has the best
+# compatibility), NativeMML (i.e. MathML) and SVG.
+# The default value is: HTML-CSS.
+# This tag requires that the tag USE_MATHJAX is set to YES.
+
+MATHJAX_FORMAT         = HTML-CSS
+
+# When MathJax is enabled you need to specify the location relative to the HTML
+# output directory using the MATHJAX_RELPATH option. The destination directory
+# should contain the MathJax.js script. For instance, if the mathjax directory
+# is located at the same level as the HTML output directory, then
+# MATHJAX_RELPATH should be ../mathjax. The default value points to the MathJax
+# Content Delivery Network so you can quickly see the result without installing
+# MathJax. However, it is strongly recommended to install a local copy of
+# MathJax from http://www.mathjax.org before deployment.
+# The default value is: http://cdn.mathjax.org/mathjax/latest.
+# This tag requires that the tag USE_MATHJAX is set to YES.
+
+MATHJAX_RELPATH        = http://cdn.mathjax.org/mathjax/latest
+
+# The MATHJAX_EXTENSIONS tag can be used to specify one or more MathJax
+# extension names that should be enabled during MathJax rendering. For example
+# MATHJAX_EXTENSIONS = TeX/AMSmath TeX/AMSsymbols
+# This tag requires that the tag USE_MATHJAX is set to YES.
+
+MATHJAX_EXTENSIONS     =
+
+# The MATHJAX_CODEFILE tag can be used to specify a file with javascript pieces
+# of code that will be used on startup of the MathJax code. See the MathJax site
+# (see: http://docs.mathjax.org/en/latest/output.html) for more details. For an
+# example see the documentation.
+# This tag requires that the tag USE_MATHJAX is set to YES.
+
+MATHJAX_CODEFILE       =
+
+# When the SEARCHENGINE tag is enabled doxygen will generate a search box for
+# the HTML output. The underlying search engine uses javascript and DHTML and
+# should work on any modern browser. Note that when using HTML help
+# (GENERATE_HTMLHELP), Qt help (GENERATE_QHP), or docsets (GENERATE_DOCSET)
+# there is already a search function so this one should typically be disabled.
+# For large projects the javascript based search engine can be slow, then
+# enabling SERVER_BASED_SEARCH may provide a better solution. It is possible to
+# search using the keyboard; to jump to the search box use <access key> + S
+# (what the <access key> is depends on the OS and browser, but it is typically
+# <CTRL>, <ALT>/<option>, or both). Inside the search box use the <cursor down
+# key> to jump into the search results window, the results can be navigated
+# using the <cursor keys>. Press <Enter> to select an item or <escape> to cancel
+# the search. The filter options can be selected when the cursor is inside the
+# search box by pressing <Shift>+<cursor down>. Also here use the <cursor keys>
+# to select a filter and <Enter> or <escape> to activate or cancel the filter
+# option.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+SEARCHENGINE           = NO
+
+# When the SERVER_BASED_SEARCH tag is enabled the search engine will be
+# implemented using a web server instead of a web client using Javascript. There
+# are two flavours of web server based searching depending on the
+# EXTERNAL_SEARCH setting. When disabled, doxygen will generate a PHP script for
+# searching and an index file used by the script. When EXTERNAL_SEARCH is
+# enabled the indexing and searching needs to be provided by external tools. See
+# the section "External Indexing and Searching" for details.
+# The default value is: NO.
+# This tag requires that the tag SEARCHENGINE is set to YES.
+
+SERVER_BASED_SEARCH    = NO
+
+# When EXTERNAL_SEARCH tag is enabled doxygen will no longer generate the PHP
+# script for searching. Instead the search results are written to an XML file
+# which needs to be processed by an external indexer. Doxygen will invoke an
+# external search engine pointed to by the SEARCHENGINE_URL option to obtain the
+# search results.
+#
+# Doxygen ships with an example indexer ( doxyindexer) and search engine
+# (doxysearch.cgi) which are based on the open source search engine library
+# Xapian (see: http://xapian.org/).
+#
+# See the section "External Indexing and Searching" for details.
+# The default value is: NO.
+# This tag requires that the tag SEARCHENGINE is set to YES.
+
+EXTERNAL_SEARCH        = NO
+
+# The SEARCHENGINE_URL should point to a search engine hosted by a web server
+# which will return the search results when EXTERNAL_SEARCH is enabled.
+#
+# Doxygen ships with an example indexer ( doxyindexer) and search engine
+# (doxysearch.cgi) which are based on the open source search engine library
+# Xapian (see: http://xapian.org/). See the section "External Indexing and
+# Searching" for details.
+# This tag requires that the tag SEARCHENGINE is set to YES.
+
+SEARCHENGINE_URL       =
+
+# When SERVER_BASED_SEARCH and EXTERNAL_SEARCH are both enabled the unindexed
+# search data is written to a file for indexing by an external tool. With the
+# SEARCHDATA_FILE tag the name of this file can be specified.
+# The default file is: searchdata.xml.
+# This tag requires that the tag SEARCHENGINE is set to YES.
+
+SEARCHDATA_FILE        = searchdata.xml
+
+# When SERVER_BASED_SEARCH and EXTERNAL_SEARCH are both enabled the
+# EXTERNAL_SEARCH_ID tag can be used as an identifier for the project. This is
+# useful in combination with EXTRA_SEARCH_MAPPINGS to search through multiple
+# projects and redirect the results back to the right project.
+# This tag requires that the tag SEARCHENGINE is set to YES.
+
+EXTERNAL_SEARCH_ID     =
+
+# The EXTRA_SEARCH_MAPPINGS tag can be used to enable searching through doxygen
+# projects other than the one defined by this configuration file, but that are
+# all added to the same external search index. Each project needs to have a
+# unique id set via EXTERNAL_SEARCH_ID. The search mapping then maps the id of
+# to a relative location where the documentation can be found. The format is:
+# EXTRA_SEARCH_MAPPINGS = tagname1=loc1 tagname2=loc2 ...
+# This tag requires that the tag SEARCHENGINE is set to YES.
+
+EXTRA_SEARCH_MAPPINGS  =
+
+#---------------------------------------------------------------------------
+# Configuration options related to the LaTeX output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_LATEX tag is set to YES doxygen will generate LaTeX output.
+# The default value is: YES.
+
+GENERATE_LATEX         = NO
+
+# The LATEX_OUTPUT tag is used to specify where the LaTeX docs will be put. If a
+# relative path is entered the value of OUTPUT_DIRECTORY will be put in front of
+# it.
+# The default directory is: latex.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_OUTPUT           = latex
+
+# The LATEX_CMD_NAME tag can be used to specify the LaTeX command name to be
+# invoked.
+#
+# Note that when enabling USE_PDFLATEX this option is only used for generating
+# bitmaps for formulas in the HTML output, but not in the Makefile that is
+# written to the output directory.
+# The default file is: latex.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_CMD_NAME         = latex
+
+# The MAKEINDEX_CMD_NAME tag can be used to specify the command name to generate
+# index for LaTeX.
+# The default file is: makeindex.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+MAKEINDEX_CMD_NAME     = makeindex
+
+# If the COMPACT_LATEX tag is set to YES doxygen generates more compact LaTeX
+# documents. This may be useful for small projects and may help to save some
+# trees in general.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+COMPACT_LATEX          = NO
+
+# The PAPER_TYPE tag can be used to set the paper type that is used by the
+# printer.
+# Possible values are: a4 (210 x 297 mm), letter (8.5 x 11 inches), legal (8.5 x
+# 14 inches) and executive (7.25 x 10.5 inches).
+# The default value is: a4.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+PAPER_TYPE             = a4
+
+# The EXTRA_PACKAGES tag can be used to specify one or more LaTeX package names
+# that should be included in the LaTeX output. To get the times font for
+# instance you can specify
+# EXTRA_PACKAGES=times
+# If left blank no extra packages will be included.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+EXTRA_PACKAGES         =
+
+# The LATEX_HEADER tag can be used to specify a personal LaTeX header for the
+# generated LaTeX document. The header should contain everything until the first
+# chapter. If it is left blank doxygen will generate a standard header. See
+# section "Doxygen usage" for information on how to let doxygen write the
+# default header to a separate file.
+#
+# Note: Only use a user-defined header if you know what you are doing! The
+# following commands have a special meaning inside the header: $title,
+# $datetime, $date, $doxygenversion, $projectname, $projectnumber. Doxygen will
+# replace them by respectively the title of the page, the current date and time,
+# only the current date, the version number of doxygen, the project name (see
+# PROJECT_NAME), or the project number (see PROJECT_NUMBER).
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_HEADER           =
+
+# The LATEX_FOOTER tag can be used to specify a personal LaTeX footer for the
+# generated LaTeX document. The footer should contain everything after the last
+# chapter. If it is left blank doxygen will generate a standard footer.
+#
+# Note: Only use a user-defined footer if you know what you are doing!
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_FOOTER           =
+
+# The LATEX_EXTRA_FILES tag can be used to specify one or more extra images or
+# other source files which should be copied to the LATEX_OUTPUT output
+# directory. Note that the files will be copied as-is; there are no commands or
+# markers available.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_EXTRA_FILES      =
+
+# If the PDF_HYPERLINKS tag is set to YES, the LaTeX that is generated is
+# prepared for conversion to PDF (using ps2pdf or pdflatex). The PDF file will
+# contain links (just like the HTML output) instead of page references. This
+# makes the output suitable for online browsing using a PDF viewer.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+PDF_HYPERLINKS         = YES
+
+# If the LATEX_PDFLATEX tag is set to YES, doxygen will use pdflatex to generate
+# the PDF file directly from the LaTeX files. Set this option to YES to get a
+# higher quality PDF documentation.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+USE_PDFLATEX           = YES
+
+# If the LATEX_BATCHMODE tag is set to YES, doxygen will add the \batchmode
+# command to the generated LaTeX files. This will instruct LaTeX to keep running
+# if errors occur, instead of asking the user for help. This option is also used
+# when generating formulas in HTML.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_BATCHMODE        = NO
+
+# If the LATEX_HIDE_INDICES tag is set to YES then doxygen will not include the
+# index chapters (such as File Index, Compound Index, etc.) in the output.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_HIDE_INDICES     = NO
+
+# If the LATEX_SOURCE_CODE tag is set to YES then doxygen will include source
+# code with syntax highlighting in the LaTeX output.
+#
+# Note that which sources are shown also depends on other settings such as
+# SOURCE_BROWSER.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_SOURCE_CODE      = NO
+
+# The LATEX_BIB_STYLE tag can be used to specify the style to use for the
+# bibliography, e.g. plainnat, or ieeetr. See
+# http://en.wikipedia.org/wiki/BibTeX and \cite for more info.
+# The default value is: plain.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_BIB_STYLE        = plain
+
+#---------------------------------------------------------------------------
+# Configuration options related to the RTF output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_RTF tag is set to YES doxygen will generate RTF output. The
+# RTF output is optimized for Word 97 and may not look too pretty with other RTF
+# readers/editors.
+# The default value is: NO.
+
+GENERATE_RTF           = NO
+
+# The RTF_OUTPUT tag is used to specify where the RTF docs will be put. If a
+# relative path is entered the value of OUTPUT_DIRECTORY will be put in front of
+# it.
+# The default directory is: rtf.
+# This tag requires that the tag GENERATE_RTF is set to YES.
+
+RTF_OUTPUT             = rtf
+
+# If the COMPACT_RTF tag is set to YES doxygen generates more compact RTF
+# documents. This may be useful for small projects and may help to save some
+# trees in general.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_RTF is set to YES.
+
+COMPACT_RTF            = NO
+
+# If the RTF_HYPERLINKS tag is set to YES, the RTF that is generated will
+# contain hyperlink fields. The RTF file will contain links (just like the HTML
+# output) instead of page references. This makes the output suitable for online
+# browsing using Word or some other Word compatible readers that support those
+# fields.
+#
+# Note: WordPad (write) and others do not support links.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_RTF is set to YES.
+
+RTF_HYPERLINKS         = NO
+
+# Load stylesheet definitions from file. Syntax is similar to doxygen's config
+# file, i.e. a series of assignments. You only have to provide replacements,
+# missing definitions are set to their default value.
+#
+# See also section "Doxygen usage" for information on how to generate the
+# default style sheet that doxygen normally uses.
+# This tag requires that the tag GENERATE_RTF is set to YES.
+
+RTF_STYLESHEET_FILE    =
+
+# Set optional variables used in the generation of an RTF document. Syntax is
+# similar to doxygen's config file. A template extensions file can be generated
+# using doxygen -e rtf extensionFile.
+# This tag requires that the tag GENERATE_RTF is set to YES.
+
+RTF_EXTENSIONS_FILE    =
+
+#---------------------------------------------------------------------------
+# Configuration options related to the man page output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_MAN tag is set to YES doxygen will generate man pages for
+# classes and files.
+# The default value is: NO.
+
+GENERATE_MAN           = NO
+
+# The MAN_OUTPUT tag is used to specify where the man pages will be put. If a
+# relative path is entered the value of OUTPUT_DIRECTORY will be put in front of
+# it. A directory man3 will be created inside the directory specified by
+# MAN_OUTPUT.
+# The default directory is: man.
+# This tag requires that the tag GENERATE_MAN is set to YES.
+
+MAN_OUTPUT             = man
+
+# The MAN_EXTENSION tag determines the extension that is added to the generated
+# man pages. In case the manual section does not start with a number, the number
+# 3 is prepended. The dot (.) at the beginning of the MAN_EXTENSION tag is
+# optional.
+# The default value is: .3.
+# This tag requires that the tag GENERATE_MAN is set to YES.
+
+MAN_EXTENSION          = .3
+
+# If the MAN_LINKS tag is set to YES and doxygen generates man output, then it
+# will generate one additional man file for each entity documented in the real
+# man page(s). These additional files only source the real man page, but without
+# them the man command would be unable to find the correct page.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_MAN is set to YES.
+
+MAN_LINKS              = NO
+
+#---------------------------------------------------------------------------
+# Configuration options related to the XML output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_XML tag is set to YES doxygen will generate an XML file that
+# captures the structure of the code including all documentation.
+# The default value is: NO.
+
+GENERATE_XML           = NO
+
+# The XML_OUTPUT tag is used to specify where the XML pages will be put. If a
+# relative path is entered the value of OUTPUT_DIRECTORY will be put in front of
+# it.
+# The default directory is: xml.
+# This tag requires that the tag GENERATE_XML is set to YES.
+
+XML_OUTPUT             = xml
+
+# The XML_SCHEMA tag can be used to specify a XML schema, which can be used by a
+# validating XML parser to check the syntax of the XML files.
+# This tag requires that the tag GENERATE_XML is set to YES.
+
+XML_SCHEMA             =
+
+# The XML_DTD tag can be used to specify a XML DTD, which can be used by a
+# validating XML parser to check the syntax of the XML files.
+# This tag requires that the tag GENERATE_XML is set to YES.
+
+XML_DTD                =
+
+# If the XML_PROGRAMLISTING tag is set to YES doxygen will dump the program
+# listings (including syntax highlighting and cross-referencing information) to
+# the XML output. Note that enabling this will significantly increase the size
+# of the XML output.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_XML is set to YES.
+
+XML_PROGRAMLISTING     = YES
+
+#---------------------------------------------------------------------------
+# Configuration options related to the DOCBOOK output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_DOCBOOK tag is set to YES doxygen will generate Docbook files
+# that can be used to generate PDF.
+# The default value is: NO.
+
+GENERATE_DOCBOOK       = NO
+
+# The DOCBOOK_OUTPUT tag is used to specify where the Docbook pages will be put.
+# If a relative path is entered the value of OUTPUT_DIRECTORY will be put in
+# front of it.
+# The default directory is: docbook.
+# This tag requires that the tag GENERATE_DOCBOOK is set to YES.
+
+DOCBOOK_OUTPUT         = docbook
+
+#---------------------------------------------------------------------------
+# Configuration options for the AutoGen Definitions output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_AUTOGEN_DEF tag is set to YES doxygen will generate an AutoGen
+# Definitions (see http://autogen.sf.net) file that captures the structure of
+# the code including all documentation. Note that this feature is still
+# experimental and incomplete at the moment.
+# The default value is: NO.
+
+GENERATE_AUTOGEN_DEF   = NO
+
+#---------------------------------------------------------------------------
+# Configuration options related to the Perl module output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_PERLMOD tag is set to YES doxygen will generate a Perl module
+# file that captures the structure of the code including all documentation.
+#
+# Note that this feature is still experimental and incomplete at the moment.
+# The default value is: NO.
+
+GENERATE_PERLMOD       = NO
+
+# If the PERLMOD_LATEX tag is set to YES doxygen will generate the necessary
+# Makefile rules, Perl scripts and LaTeX code to be able to generate PDF and DVI
+# output from the Perl module output.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_PERLMOD is set to YES.
+
+PERLMOD_LATEX          = NO
+
+# If the PERLMOD_PRETTY tag is set to YES the Perl module output will be nicely
+# formatted so it can be parsed by a human reader. This is useful if you want to
+# understand what is going on. On the other hand, if this tag is set to NO the
+# size of the Perl module output will be much smaller and Perl will parse it
+# just the same.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_PERLMOD is set to YES.
+
+PERLMOD_PRETTY         = YES
+
+# The names of the make variables in the generated doxyrules.make file are
+# prefixed with the string contained in PERLMOD_MAKEVAR_PREFIX. This is useful
+# so different doxyrules.make files included by the same Makefile don't
+# overwrite each other's variables.
+# This tag requires that the tag GENERATE_PERLMOD is set to YES.
+
+PERLMOD_MAKEVAR_PREFIX =
+
+#---------------------------------------------------------------------------
+# Configuration options related to the preprocessor
+#---------------------------------------------------------------------------
+
+# If the ENABLE_PREPROCESSING tag is set to YES doxygen will evaluate all
+# C-preprocessor directives found in the sources and include files.
+# The default value is: YES.
+
+ENABLE_PREPROCESSING   = YES
+
+# If the MACRO_EXPANSION tag is set to YES doxygen will expand all macro names
+# in the source code. If set to NO only conditional compilation will be
+# performed. Macro expansion can be done in a controlled way by setting
+# EXPAND_ONLY_PREDEF to YES.
+# The default value is: NO.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+MACRO_EXPANSION        = NO
+
+# If the EXPAND_ONLY_PREDEF and MACRO_EXPANSION tags are both set to YES then
+# the macro expansion is limited to the macros specified with the PREDEFINED and
+# EXPAND_AS_DEFINED tags.
+# The default value is: NO.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+EXPAND_ONLY_PREDEF     = NO
+
+# If the SEARCH_INCLUDES tag is set to YES the includes files in the
+# INCLUDE_PATH will be searched if a #include is found.
+# The default value is: YES.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+SEARCH_INCLUDES        = YES
+
+# The INCLUDE_PATH tag can be used to specify one or more directories that
+# contain include files that are not input files but should be processed by the
+# preprocessor.
+# This tag requires that the tag SEARCH_INCLUDES is set to YES.
+
+INCLUDE_PATH           =
+
+# You can use the INCLUDE_FILE_PATTERNS tag to specify one or more wildcard
+# patterns (like *.h and *.hpp) to filter out the header-files in the
+# directories. If left blank, the patterns specified with FILE_PATTERNS will be
+# used.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+INCLUDE_FILE_PATTERNS  =
+
+# The PREDEFINED tag can be used to specify one or more macro names that are
+# defined before the preprocessor is started (similar to the -D option of e.g.
+# gcc). The argument of the tag is a list of macros of the form: name or
+# name=definition (no spaces). If the definition and the "=" are omitted, "=1"
+# is assumed. To prevent a macro definition from being undefined via #undef or
+# recursively expanded use the := operator instead of the = operator.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+PREDEFINED             =
+
+# If the MACRO_EXPANSION and EXPAND_ONLY_PREDEF tags are set to YES then this
+# tag can be used to specify a list of macro names that should be expanded. The
+# macro definition that is found in the sources will be used. Use the PREDEFINED
+# tag if you want to use a different macro definition that overrules the
+# definition found in the source code.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+EXPAND_AS_DEFINED      =
+
+# If the SKIP_FUNCTION_MACROS tag is set to YES then doxygen's preprocessor will
+# remove all refrences to function-like macros that are alone on a line, have an
+# all uppercase name, and do not end with a semicolon. Such function macros are
+# typically used for boiler-plate code, and will confuse the parser if not
+# removed.
+# The default value is: YES.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+SKIP_FUNCTION_MACROS   = YES
+
+#---------------------------------------------------------------------------
+# Configuration options related to external references
+#---------------------------------------------------------------------------
+
+# The TAGFILES tag can be used to specify one or more tag files. For each tag
+# file the location of the external documentation should be added. The format of
+# a tag file without this location is as follows:
+# TAGFILES = file1 file2 ...
+# Adding location for the tag files is done as follows:
+# TAGFILES = file1=loc1 "file2 = loc2" ...
+# where loc1 and loc2 can be relative or absolute paths or URLs. See the
+# section "Linking to external documentation" for more information about the use
+# of tag files.
+# Note: Each tag file must have an unique name (where the name does NOT include
+# the path). If a tag file is not located in the directory in which doxygen is
+# run, you must also specify the path to the tagfile here.
+
+TAGFILES               =
+
+# When a file name is specified after GENERATE_TAGFILE, doxygen will create a
+# tag file that is based on the input files it reads. See section "Linking to
+# external documentation" for more information about the usage of tag files.
+
+GENERATE_TAGFILE       =
+
+# If the ALLEXTERNALS tag is set to YES all external class will be listed in the
+# class index. If set to NO only the inherited external classes will be listed.
+# The default value is: NO.
+
+ALLEXTERNALS           = NO
+
+# If the EXTERNAL_GROUPS tag is set to YES all external groups will be listed in
+# the modules index. If set to NO, only the current project's groups will be
+# listed.
+# The default value is: YES.
+
+EXTERNAL_GROUPS        = YES
+
+# If the EXTERNAL_PAGES tag is set to YES all external pages will be listed in
+# the related pages index. If set to NO, only the current project's pages will
+# be listed.
+# The default value is: YES.
+
+EXTERNAL_PAGES         = YES
+
+# The PERL_PATH should be the absolute path and name of the perl script
+# interpreter (i.e. the result of 'which perl').
+# The default file (with absolute path) is: /usr/bin/perl.
+
+PERL_PATH              = /usr/bin/perl
+
+#---------------------------------------------------------------------------
+# Configuration options related to the dot tool
+#---------------------------------------------------------------------------
+
+# If the CLASS_DIAGRAMS tag is set to YES doxygen will generate a class diagram
+# (in HTML and LaTeX) for classes with base or super classes. Setting the tag to
+# NO turns the diagrams off. Note that this option also works with HAVE_DOT
+# disabled, but it is recommended to install and use dot, since it yields more
+# powerful graphs.
+# The default value is: YES.
+
+CLASS_DIAGRAMS         = YES
+
+# You can define message sequence charts within doxygen comments using the \msc
+# command. Doxygen will then run the mscgen tool (see:
+# http://www.mcternan.me.uk/mscgen/)) to produce the chart and insert it in the
+# documentation. The MSCGEN_PATH tag allows you to specify the directory where
+# the mscgen tool resides. If left empty the tool is assumed to be found in the
+# default search path.
+
+MSCGEN_PATH            =
+
+# You can include diagrams made with dia in doxygen documentation. Doxygen will
+# then run dia to produce the diagram and insert it in the documentation. The
+# DIA_PATH tag allows you to specify the directory where the dia binary resides.
+# If left empty dia is assumed to be found in the default search path.
+
+DIA_PATH               =
+
+# If set to YES, the inheritance and collaboration graphs will hide inheritance
+# and usage relations if the target is undocumented or is not a class.
+# The default value is: YES.
+
+HIDE_UNDOC_RELATIONS   = YES
+
+# If you set the HAVE_DOT tag to YES then doxygen will assume the dot tool is
+# available from the path. This tool is part of Graphviz (see:
+# http://www.graphviz.org/), a graph visualization toolkit from AT&T and Lucent
+# Bell Labs. The other options in this section have no effect if this option is
+# set to NO
+# The default value is: NO.
+
+HAVE_DOT               = NO
+
+# The DOT_NUM_THREADS specifies the number of dot invocations doxygen is allowed
+# to run in parallel. When set to 0 doxygen will base this on the number of
+# processors available in the system. You can set it explicitly to a value
+# larger than 0 to get control over the balance between CPU load and processing
+# speed.
+# Minimum value: 0, maximum value: 32, default value: 0.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_NUM_THREADS        = 0
+
+# When you want a differently looking font n the dot files that doxygen
+# generates you can specify the font name using DOT_FONTNAME. You need to make
+# sure dot is able to find the font, which can be done by putting it in a
+# standard location or by setting the DOTFONTPATH environment variable or by
+# setting DOT_FONTPATH to the directory containing the font.
+# The default value is: Helvetica.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_FONTNAME           = Helvetica
+
+# The DOT_FONTSIZE tag can be used to set the size (in points) of the font of
+# dot graphs.
+# Minimum value: 4, maximum value: 24, default value: 10.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_FONTSIZE           = 10
+
+# By default doxygen will tell dot to use the default font as specified with
+# DOT_FONTNAME. If you specify a different font using DOT_FONTNAME you can set
+# the path where dot can find it using this tag.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_FONTPATH           =
+
+# If the CLASS_GRAPH tag is set to YES then doxygen will generate a graph for
+# each documented class showing the direct and indirect inheritance relations.
+# Setting this tag to YES will force the CLASS_DIAGRAMS tag to NO.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+CLASS_GRAPH            = YES
+
+# If the COLLABORATION_GRAPH tag is set to YES then doxygen will generate a
+# graph for each documented class showing the direct and indirect implementation
+# dependencies (inheritance, containment, and class references variables) of the
+# class with other documented classes.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+COLLABORATION_GRAPH    = YES
+
+# If the GROUP_GRAPHS tag is set to YES then doxygen will generate a graph for
+# groups, showing the direct groups dependencies.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+GROUP_GRAPHS           = YES
+
+# If the UML_LOOK tag is set to YES doxygen will generate inheritance and
+# collaboration diagrams in a style similar to the OMG's Unified Modeling
+# Language.
+# The default value is: NO.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+UML_LOOK               = NO
+
+# If the UML_LOOK tag is enabled, the fields and methods are shown inside the
+# class node. If there are many fields or methods and many nodes the graph may
+# become too big to be useful. The UML_LIMIT_NUM_FIELDS threshold limits the
+# number of items for each type to make the size more manageable. Set this to 0
+# for no limit. Note that the threshold may be exceeded by 50% before the limit
+# is enforced. So when you set the threshold to 10, up to 15 fields may appear,
+# but if the number exceeds 15, the total amount of fields shown is limited to
+# 10.
+# Minimum value: 0, maximum value: 100, default value: 10.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+UML_LIMIT_NUM_FIELDS   = 10
+
+# If the TEMPLATE_RELATIONS tag is set to YES then the inheritance and
+# collaboration graphs will show the relations between templates and their
+# instances.
+# The default value is: NO.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+TEMPLATE_RELATIONS     = NO
+
+# If the INCLUDE_GRAPH, ENABLE_PREPROCESSING and SEARCH_INCLUDES tags are set to
+# YES then doxygen will generate a graph for each documented file showing the
+# direct and indirect include dependencies of the file with other documented
+# files.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+INCLUDE_GRAPH          = YES
+
+# If the INCLUDED_BY_GRAPH, ENABLE_PREPROCESSING and SEARCH_INCLUDES tags are
+# set to YES then doxygen will generate a graph for each documented file showing
+# the direct and indirect include dependencies of the file with other documented
+# files.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+INCLUDED_BY_GRAPH      = YES
+
+# If the CALL_GRAPH tag is set to YES then doxygen will generate a call
+# dependency graph for every global function or class method.
+#
+# Note that enabling this option will significantly increase the time of a run.
+# So in most cases it will be better to enable call graphs for selected
+# functions only using the \callgraph command.
+# The default value is: NO.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+CALL_GRAPH             = NO
+
+# If the CALLER_GRAPH tag is set to YES then doxygen will generate a caller
+# dependency graph for every global function or class method.
+#
+# Note that enabling this option will significantly increase the time of a run.
+# So in most cases it will be better to enable caller graphs for selected
+# functions only using the \callergraph command.
+# The default value is: NO.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+CALLER_GRAPH           = NO
+
+# If the GRAPHICAL_HIERARCHY tag is set to YES then doxygen will graphical
+# hierarchy of all classes instead of a textual one.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+GRAPHICAL_HIERARCHY    = YES
+
+# If the DIRECTORY_GRAPH tag is set to YES then doxygen will show the
+# dependencies a directory has on other directories in a graphical way. The
+# dependency relations are determined by the #include relations between the
+# files in the directories.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DIRECTORY_GRAPH        = YES
+
+# The DOT_IMAGE_FORMAT tag can be used to set the image format of the images
+# generated by dot.
+# Note: If you choose svg you need to set HTML_FILE_EXTENSION to xhtml in order
+# to make the SVG files visible in IE 9+ (other browsers do not have this
+# requirement).
+# Possible values are: png, jpg, gif and svg.
+# The default value is: png.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_IMAGE_FORMAT       = png
+
+# If DOT_IMAGE_FORMAT is set to svg, then this option can be set to YES to
+# enable generation of interactive SVG images that allow zooming and panning.
+#
+# Note that this requires a modern browser other than Internet Explorer. Tested
+# and working are Firefox, Chrome, Safari, and Opera.
+# Note: For IE 9+ you need to set HTML_FILE_EXTENSION to xhtml in order to make
+# the SVG files visible. Older versions of IE do not have SVG support.
+# The default value is: NO.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+INTERACTIVE_SVG        = NO
+
+# The DOT_PATH tag can be used to specify the path where the dot tool can be
+# found. If left blank, it is assumed the dot tool can be found in the path.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_PATH               =
+
+# The DOTFILE_DIRS tag can be used to specify one or more directories that
+# contain dot files that are included in the documentation (see the \dotfile
+# command).
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOTFILE_DIRS           =
+
+# The MSCFILE_DIRS tag can be used to specify one or more directories that
+# contain msc files that are included in the documentation (see the \mscfile
+# command).
+
+MSCFILE_DIRS           =
+
+# The DIAFILE_DIRS tag can be used to specify one or more directories that
+# contain dia files that are included in the documentation (see the \diafile
+# command).
+
+DIAFILE_DIRS           =
+
+# The DOT_GRAPH_MAX_NODES tag can be used to set the maximum number of nodes
+# that will be shown in the graph. If the number of nodes in a graph becomes
+# larger than this value, doxygen will truncate the graph, which is visualized
+# by representing a node as a red box. Note that doxygen if the number of direct
+# children of the root node in a graph is already larger than
+# DOT_GRAPH_MAX_NODES then the graph will not be shown at all. Also note that
+# the size of a graph can be further restricted by MAX_DOT_GRAPH_DEPTH.
+# Minimum value: 0, maximum value: 10000, default value: 50.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_GRAPH_MAX_NODES    = 50
+
+# The MAX_DOT_GRAPH_DEPTH tag can be used to set the maximum depth of the graphs
+# generated by dot. A depth value of 3 means that only nodes reachable from the
+# root by following a path via at most 3 edges will be shown. Nodes that lay
+# further from the root node will be omitted. Note that setting this option to 1
+# or 2 may greatly reduce the computation time needed for large code bases. Also
+# note that the size of a graph can be further restricted by
+# DOT_GRAPH_MAX_NODES. Using a depth of 0 means no depth restriction.
+# Minimum value: 0, maximum value: 1000, default value: 0.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+MAX_DOT_GRAPH_DEPTH    = 0
+
+# Set the DOT_TRANSPARENT tag to YES to generate images with a transparent
+# background. This is disabled by default, because dot on Windows does not seem
+# to support this out of the box.
+#
+# Warning: Depending on the platform used, enabling this option may lead to
+# badly anti-aliased labels on the edges of a graph (i.e. they become hard to
+# read).
+# The default value is: NO.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_TRANSPARENT        = NO
+
+# Set the DOT_MULTI_TARGETS tag to YES allow dot to generate multiple output
+# files in one run (i.e. multiple -o and -T options on the command line). This
+# makes dot run faster, but since only newer versions of dot (>1.8.10) support
+# this, this feature is disabled by default.
+# The default value is: NO.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_MULTI_TARGETS      = YES
+
+# If the GENERATE_LEGEND tag is set to YES doxygen will generate a legend page
+# explaining the meaning of the various boxes and arrows in the dot generated
+# graphs.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+GENERATE_LEGEND        = YES
+
+# If the DOT_CLEANUP tag is set to YES doxygen will remove the intermediate dot
+# files that are used to generate the various graphs.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_CLEANUP            = YES
diff --git a/media/libaaudio/Doxyfile.orig b/media/libaaudio/Doxyfile.orig
new file mode 100644
index 0000000..137facb
--- /dev/null
+++ b/media/libaaudio/Doxyfile.orig
@@ -0,0 +1,2303 @@
+# Doxyfile 1.8.6
+
+# This file describes the settings to be used by the documentation system
+# doxygen (www.doxygen.org) for a project.
+#
+# All text after a double hash (##) is considered a comment and is placed in
+# front of the TAG it is preceding.
+#
+# All text after a single hash (#) is considered a comment and will be ignored.
+# The format is:
+# TAG = value [value, ...]
+# For lists, items can also be appended using:
+# TAG += value [value, ...]
+# Values that contain spaces should be placed between quotes (\" \").
+
+#---------------------------------------------------------------------------
+# Project related configuration options
+#---------------------------------------------------------------------------
+
+# This tag specifies the encoding used for all characters in the config file
+# that follow. The default is UTF-8 which is also the encoding used for all text
+# before the first occurrence of this tag. Doxygen uses libiconv (or the iconv
+# built into libc) for the transcoding. See http://www.gnu.org/software/libiconv
+# for the list of possible encodings.
+# The default value is: UTF-8.
+
+DOXYFILE_ENCODING      = UTF-8
+
+# The PROJECT_NAME tag is a single word (or a sequence of words surrounded by
+# double-quotes, unless you are using Doxywizard) that should identify the
+# project for which the documentation is generated. This name is used in the
+# title of most generated pages and in a few other places.
+# The default value is: My Project.
+
+PROJECT_NAME           = "My Project"
+
+# The PROJECT_NUMBER tag can be used to enter a project or revision number. This
+# could be handy for archiving the generated documentation or if some version
+# control system is used.
+
+PROJECT_NUMBER         =
+
+# Using the PROJECT_BRIEF tag one can provide an optional one line description
+# for a project that appears at the top of each page and should give viewer a
+# quick idea about the purpose of the project. Keep the description short.
+
+PROJECT_BRIEF          =
+
+# With the PROJECT_LOGO tag one can specify an logo or icon that is included in
+# the documentation. The maximum height of the logo should not exceed 55 pixels
+# and the maximum width should not exceed 200 pixels. Doxygen will copy the logo
+# to the output directory.
+
+PROJECT_LOGO           =
+
+# The OUTPUT_DIRECTORY tag is used to specify the (relative or absolute) path
+# into which the generated documentation will be written. If a relative path is
+# entered, it will be relative to the location where doxygen was started. If
+# left blank the current directory will be used.
+
+OUTPUT_DIRECTORY       =
+
+# If the CREATE_SUBDIRS tag is set to YES, then doxygen will create 4096 sub-
+# directories (in 2 levels) under the output directory of each output format and
+# will distribute the generated files over these directories. Enabling this
+# option can be useful when feeding doxygen a huge amount of source files, where
+# putting all generated files in the same directory would otherwise causes
+# performance problems for the file system.
+# The default value is: NO.
+
+CREATE_SUBDIRS         = NO
+
+# The OUTPUT_LANGUAGE tag is used to specify the language in which all
+# documentation generated by doxygen is written. Doxygen will use this
+# information to generate all constant output in the proper language.
+# Possible values are: Afrikaans, Arabic, Armenian, Brazilian, Catalan, Chinese,
+# Chinese-Traditional, Croatian, Czech, Danish, Dutch, English (United States),
+# Esperanto, Farsi (Persian), Finnish, French, German, Greek, Hungarian,
+# Indonesian, Italian, Japanese, Japanese-en (Japanese with English messages),
+# Korean, Korean-en (Korean with English messages), Latvian, Lithuanian,
+# Macedonian, Norwegian, Persian (Farsi), Polish, Portuguese, Romanian, Russian,
+# Serbian, Serbian-Cyrillic, Slovak, Slovene, Spanish, Swedish, Turkish,
+# Ukrainian and Vietnamese.
+# The default value is: English.
+
+OUTPUT_LANGUAGE        = English
+
+# If the BRIEF_MEMBER_DESC tag is set to YES doxygen will include brief member
+# descriptions after the members that are listed in the file and class
+# documentation (similar to Javadoc). Set to NO to disable this.
+# The default value is: YES.
+
+BRIEF_MEMBER_DESC      = YES
+
+# If the REPEAT_BRIEF tag is set to YES doxygen will prepend the brief
+# description of a member or function before the detailed description
+#
+# Note: If both HIDE_UNDOC_MEMBERS and BRIEF_MEMBER_DESC are set to NO, the
+# brief descriptions will be completely suppressed.
+# The default value is: YES.
+
+REPEAT_BRIEF           = YES
+
+# This tag implements a quasi-intelligent brief description abbreviator that is
+# used to form the text in various listings. Each string in this list, if found
+# as the leading text of the brief description, will be stripped from the text
+# and the result, after processing the whole list, is used as the annotated
+# text. Otherwise, the brief description is used as-is. If left blank, the
+# following values are used ($name is automatically replaced with the name of
+# the entity):The $name class, The $name widget, The $name file, is, provides,
+# specifies, contains, represents, a, an and the.
+
+ABBREVIATE_BRIEF       =
+
+# If the ALWAYS_DETAILED_SEC and REPEAT_BRIEF tags are both set to YES then
+# doxygen will generate a detailed section even if there is only a brief
+# description.
+# The default value is: NO.
+
+ALWAYS_DETAILED_SEC    = NO
+
+# If the INLINE_INHERITED_MEMB tag is set to YES, doxygen will show all
+# inherited members of a class in the documentation of that class as if those
+# members were ordinary class members. Constructors, destructors and assignment
+# operators of the base classes will not be shown.
+# The default value is: NO.
+
+INLINE_INHERITED_MEMB  = NO
+
+# If the FULL_PATH_NAMES tag is set to YES doxygen will prepend the full path
+# before files name in the file list and in the header files. If set to NO the
+# shortest path that makes the file name unique will be used
+# The default value is: YES.
+
+FULL_PATH_NAMES        = YES
+
+# The STRIP_FROM_PATH tag can be used to strip a user-defined part of the path.
+# Stripping is only done if one of the specified strings matches the left-hand
+# part of the path. The tag can be used to show relative paths in the file list.
+# If left blank the directory from which doxygen is run is used as the path to
+# strip.
+#
+# Note that you can specify absolute paths here, but also relative paths, which
+# will be relative from the directory where doxygen is started.
+# This tag requires that the tag FULL_PATH_NAMES is set to YES.
+
+STRIP_FROM_PATH        =
+
+# The STRIP_FROM_INC_PATH tag can be used to strip a user-defined part of the
+# path mentioned in the documentation of a class, which tells the reader which
+# header file to include in order to use a class. If left blank only the name of
+# the header file containing the class definition is used. Otherwise one should
+# specify the list of include paths that are normally passed to the compiler
+# using the -I flag.
+
+STRIP_FROM_INC_PATH    =
+
+# If the SHORT_NAMES tag is set to YES, doxygen will generate much shorter (but
+# less readable) file names. This can be useful is your file systems doesn't
+# support long names like on DOS, Mac, or CD-ROM.
+# The default value is: NO.
+
+SHORT_NAMES            = NO
+
+# If the JAVADOC_AUTOBRIEF tag is set to YES then doxygen will interpret the
+# first line (until the first dot) of a Javadoc-style comment as the brief
+# description. If set to NO, the Javadoc-style will behave just like regular Qt-
+# style comments (thus requiring an explicit @brief command for a brief
+# description.)
+# The default value is: NO.
+
+JAVADOC_AUTOBRIEF      = NO
+
+# If the QT_AUTOBRIEF tag is set to YES then doxygen will interpret the first
+# line (until the first dot) of a Qt-style comment as the brief description. If
+# set to NO, the Qt-style will behave just like regular Qt-style comments (thus
+# requiring an explicit \brief command for a brief description.)
+# The default value is: NO.
+
+QT_AUTOBRIEF           = NO
+
+# The MULTILINE_CPP_IS_BRIEF tag can be set to YES to make doxygen treat a
+# multi-line C++ special comment block (i.e. a block of //! or /// comments) as
+# a brief description. This used to be the default behavior. The new default is
+# to treat a multi-line C++ comment block as a detailed description. Set this
+# tag to YES if you prefer the old behavior instead.
+#
+# Note that setting this tag to YES also means that rational rose comments are
+# not recognized any more.
+# The default value is: NO.
+
+MULTILINE_CPP_IS_BRIEF = NO
+
+# If the INHERIT_DOCS tag is set to YES then an undocumented member inherits the
+# documentation from any documented member that it re-implements.
+# The default value is: YES.
+
+INHERIT_DOCS           = YES
+
+# If the SEPARATE_MEMBER_PAGES tag is set to YES, then doxygen will produce a
+# new page for each member. If set to NO, the documentation of a member will be
+# part of the file/class/namespace that contains it.
+# The default value is: NO.
+
+SEPARATE_MEMBER_PAGES  = NO
+
+# The TAB_SIZE tag can be used to set the number of spaces in a tab. Doxygen
+# uses this value to replace tabs by spaces in code fragments.
+# Minimum value: 1, maximum value: 16, default value: 4.
+
+TAB_SIZE               = 4
+
+# This tag can be used to specify a number of aliases that act as commands in
+# the documentation. An alias has the form:
+# name=value
+# For example adding
+# "sideeffect=@par Side Effects:\n"
+# will allow you to put the command \sideeffect (or @sideeffect) in the
+# documentation, which will result in a user-defined paragraph with heading
+# "Side Effects:". You can put \n's in the value part of an alias to insert
+# newlines.
+
+ALIASES                =
+
+# This tag can be used to specify a number of word-keyword mappings (TCL only).
+# A mapping has the form "name=value". For example adding "class=itcl::class"
+# will allow you to use the command class in the itcl::class meaning.
+
+TCL_SUBST              =
+
+# Set the OPTIMIZE_OUTPUT_FOR_C tag to YES if your project consists of C sources
+# only. Doxygen will then generate output that is more tailored for C. For
+# instance, some of the names that are used will be different. The list of all
+# members will be omitted, etc.
+# The default value is: NO.
+
+OPTIMIZE_OUTPUT_FOR_C  = NO
+
+# Set the OPTIMIZE_OUTPUT_JAVA tag to YES if your project consists of Java or
+# Python sources only. Doxygen will then generate output that is more tailored
+# for that language. For instance, namespaces will be presented as packages,
+# qualified scopes will look different, etc.
+# The default value is: NO.
+
+OPTIMIZE_OUTPUT_JAVA   = NO
+
+# Set the OPTIMIZE_FOR_FORTRAN tag to YES if your project consists of Fortran
+# sources. Doxygen will then generate output that is tailored for Fortran.
+# The default value is: NO.
+
+OPTIMIZE_FOR_FORTRAN   = NO
+
+# Set the OPTIMIZE_OUTPUT_VHDL tag to YES if your project consists of VHDL
+# sources. Doxygen will then generate output that is tailored for VHDL.
+# The default value is: NO.
+
+OPTIMIZE_OUTPUT_VHDL   = NO
+
+# Doxygen selects the parser to use depending on the extension of the files it
+# parses. With this tag you can assign which parser to use for a given
+# extension. Doxygen has a built-in mapping, but you can override or extend it
+# using this tag. The format is ext=language, where ext is a file extension, and
+# language is one of the parsers supported by doxygen: IDL, Java, Javascript,
+# C#, C, C++, D, PHP, Objective-C, Python, Fortran, VHDL. For instance to make
+# doxygen treat .inc files as Fortran files (default is PHP), and .f files as C
+# (default is Fortran), use: inc=Fortran f=C.
+#
+# Note For files without extension you can use no_extension as a placeholder.
+#
+# Note that for custom extensions you also need to set FILE_PATTERNS otherwise
+# the files are not read by doxygen.
+
+EXTENSION_MAPPING      =
+
+# If the MARKDOWN_SUPPORT tag is enabled then doxygen pre-processes all comments
+# according to the Markdown format, which allows for more readable
+# documentation. See http://daringfireball.net/projects/markdown/ for details.
+# The output of markdown processing is further processed by doxygen, so you can
+# mix doxygen, HTML, and XML commands with Markdown formatting. Disable only in
+# case of backward compatibilities issues.
+# The default value is: YES.
+
+MARKDOWN_SUPPORT       = YES
+
+# When enabled doxygen tries to link words that correspond to documented
+# classes, or namespaces to their corresponding documentation. Such a link can
+# be prevented in individual cases by by putting a % sign in front of the word
+# or globally by setting AUTOLINK_SUPPORT to NO.
+# The default value is: YES.
+
+AUTOLINK_SUPPORT       = YES
+
+# If you use STL classes (i.e. std::string, std::vector, etc.) but do not want
+# to include (a tag file for) the STL sources as input, then you should set this
+# tag to YES in order to let doxygen match functions declarations and
+# definitions whose arguments contain STL classes (e.g. func(std::string);
+# versus func(std::string) {}). This also make the inheritance and collaboration
+# diagrams that involve STL classes more complete and accurate.
+# The default value is: NO.
+
+BUILTIN_STL_SUPPORT    = NO
+
+# If you use Microsoft's C++/CLI language, you should set this option to YES to
+# enable parsing support.
+# The default value is: NO.
+
+CPP_CLI_SUPPORT        = NO
+
+# Set the SIP_SUPPORT tag to YES if your project consists of sip (see:
+# http://www.riverbankcomputing.co.uk/software/sip/intro) sources only. Doxygen
+# will parse them like normal C++ but will assume all classes use public instead
+# of private inheritance when no explicit protection keyword is present.
+# The default value is: NO.
+
+SIP_SUPPORT            = NO
+
+# For Microsoft's IDL there are propget and propput attributes to indicate
+# getter and setter methods for a property. Setting this option to YES will make
+# doxygen to replace the get and set methods by a property in the documentation.
+# This will only work if the methods are indeed getting or setting a simple
+# type. If this is not the case, or you want to show the methods anyway, you
+# should set this option to NO.
+# The default value is: YES.
+
+IDL_PROPERTY_SUPPORT   = YES
+
+# If member grouping is used in the documentation and the DISTRIBUTE_GROUP_DOC
+# tag is set to YES, then doxygen will reuse the documentation of the first
+# member in the group (if any) for the other members of the group. By default
+# all members of a group must be documented explicitly.
+# The default value is: NO.
+
+DISTRIBUTE_GROUP_DOC   = NO
+
+# Set the SUBGROUPING tag to YES to allow class member groups of the same type
+# (for instance a group of public functions) to be put as a subgroup of that
+# type (e.g. under the Public Functions section). Set it to NO to prevent
+# subgrouping. Alternatively, this can be done per class using the
+# \nosubgrouping command.
+# The default value is: YES.
+
+SUBGROUPING            = YES
+
+# When the INLINE_GROUPED_CLASSES tag is set to YES, classes, structs and unions
+# are shown inside the group in which they are included (e.g. using \ingroup)
+# instead of on a separate page (for HTML and Man pages) or section (for LaTeX
+# and RTF).
+#
+# Note that this feature does not work in combination with
+# SEPARATE_MEMBER_PAGES.
+# The default value is: NO.
+
+INLINE_GROUPED_CLASSES = NO
+
+# When the INLINE_SIMPLE_STRUCTS tag is set to YES, structs, classes, and unions
+# with only public data fields or simple typedef fields will be shown inline in
+# the documentation of the scope in which they are defined (i.e. file,
+# namespace, or group documentation), provided this scope is documented. If set
+# to NO, structs, classes, and unions are shown on a separate page (for HTML and
+# Man pages) or section (for LaTeX and RTF).
+# The default value is: NO.
+
+INLINE_SIMPLE_STRUCTS  = NO
+
+# When TYPEDEF_HIDES_STRUCT tag is enabled, a typedef of a struct, union, or
+# enum is documented as struct, union, or enum with the name of the typedef. So
+# typedef struct TypeS {} TypeT, will appear in the documentation as a struct
+# with name TypeT. When disabled the typedef will appear as a member of a file,
+# namespace, or class. And the struct will be named TypeS. This can typically be
+# useful for C code in case the coding convention dictates that all compound
+# types are typedef'ed and only the typedef is referenced, never the tag name.
+# The default value is: NO.
+
+TYPEDEF_HIDES_STRUCT   = NO
+
+# The size of the symbol lookup cache can be set using LOOKUP_CACHE_SIZE. This
+# cache is used to resolve symbols given their name and scope. Since this can be
+# an expensive process and often the same symbol appears multiple times in the
+# code, doxygen keeps a cache of pre-resolved symbols. If the cache is too small
+# doxygen will become slower. If the cache is too large, memory is wasted. The
+# cache size is given by this formula: 2^(16+LOOKUP_CACHE_SIZE). The valid range
+# is 0..9, the default is 0, corresponding to a cache size of 2^16=65536
+# symbols. At the end of a run doxygen will report the cache usage and suggest
+# the optimal cache size from a speed point of view.
+# Minimum value: 0, maximum value: 9, default value: 0.
+
+LOOKUP_CACHE_SIZE      = 0
+
+#---------------------------------------------------------------------------
+# Build related configuration options
+#---------------------------------------------------------------------------
+
+# If the EXTRACT_ALL tag is set to YES doxygen will assume all entities in
+# documentation are documented, even if no documentation was available. Private
+# class members and static file members will be hidden unless the
+# EXTRACT_PRIVATE respectively EXTRACT_STATIC tags are set to YES.
+# Note: This will also disable the warnings about undocumented members that are
+# normally produced when WARNINGS is set to YES.
+# The default value is: NO.
+
+EXTRACT_ALL            = NO
+
+# If the EXTRACT_PRIVATE tag is set to YES all private members of a class will
+# be included in the documentation.
+# The default value is: NO.
+
+EXTRACT_PRIVATE        = NO
+
+# If the EXTRACT_PACKAGE tag is set to YES all members with package or internal
+# scope will be included in the documentation.
+# The default value is: NO.
+
+EXTRACT_PACKAGE        = NO
+
+# If the EXTRACT_STATIC tag is set to YES all static members of a file will be
+# included in the documentation.
+# The default value is: NO.
+
+EXTRACT_STATIC         = NO
+
+# If the EXTRACT_LOCAL_CLASSES tag is set to YES classes (and structs) defined
+# locally in source files will be included in the documentation. If set to NO
+# only classes defined in header files are included. Does not have any effect
+# for Java sources.
+# The default value is: YES.
+
+EXTRACT_LOCAL_CLASSES  = YES
+
+# This flag is only useful for Objective-C code. When set to YES local methods,
+# which are defined in the implementation section but not in the interface are
+# included in the documentation. If set to NO only methods in the interface are
+# included.
+# The default value is: NO.
+
+EXTRACT_LOCAL_METHODS  = NO
+
+# If this flag is set to YES, the members of anonymous namespaces will be
+# extracted and appear in the documentation as a namespace called
+# 'anonymous_namespace{file}', where file will be replaced with the base name of
+# the file that contains the anonymous namespace. By default anonymous namespace
+# are hidden.
+# The default value is: NO.
+
+EXTRACT_ANON_NSPACES   = NO
+
+# If the HIDE_UNDOC_MEMBERS tag is set to YES, doxygen will hide all
+# undocumented members inside documented classes or files. If set to NO these
+# members will be included in the various overviews, but no documentation
+# section is generated. This option has no effect if EXTRACT_ALL is enabled.
+# The default value is: NO.
+
+HIDE_UNDOC_MEMBERS     = NO
+
+# If the HIDE_UNDOC_CLASSES tag is set to YES, doxygen will hide all
+# undocumented classes that are normally visible in the class hierarchy. If set
+# to NO these classes will be included in the various overviews. This option has
+# no effect if EXTRACT_ALL is enabled.
+# The default value is: NO.
+
+HIDE_UNDOC_CLASSES     = NO
+
+# If the HIDE_FRIEND_COMPOUNDS tag is set to YES, doxygen will hide all friend
+# (class|struct|union) declarations. If set to NO these declarations will be
+# included in the documentation.
+# The default value is: NO.
+
+HIDE_FRIEND_COMPOUNDS  = NO
+
+# If the HIDE_IN_BODY_DOCS tag is set to YES, doxygen will hide any
+# documentation blocks found inside the body of a function. If set to NO these
+# blocks will be appended to the function's detailed documentation block.
+# The default value is: NO.
+
+HIDE_IN_BODY_DOCS      = NO
+
+# The INTERNAL_DOCS tag determines if documentation that is typed after a
+# \internal command is included. If the tag is set to NO then the documentation
+# will be excluded. Set it to YES to include the internal documentation.
+# The default value is: NO.
+
+INTERNAL_DOCS          = NO
+
+# If the CASE_SENSE_NAMES tag is set to NO then doxygen will only generate file
+# names in lower-case letters. If set to YES upper-case letters are also
+# allowed. This is useful if you have classes or files whose names only differ
+# in case and if your file system supports case sensitive file names. Windows
+# and Mac users are advised to set this option to NO.
+# The default value is: system dependent.
+
+CASE_SENSE_NAMES       = YES
+
+# If the HIDE_SCOPE_NAMES tag is set to NO then doxygen will show members with
+# their full class and namespace scopes in the documentation. If set to YES the
+# scope will be hidden.
+# The default value is: NO.
+
+HIDE_SCOPE_NAMES       = NO
+
+# If the SHOW_INCLUDE_FILES tag is set to YES then doxygen will put a list of
+# the files that are included by a file in the documentation of that file.
+# The default value is: YES.
+
+SHOW_INCLUDE_FILES     = YES
+
+# If the SHOW_GROUPED_MEMB_INC tag is set to YES then Doxygen will add for each
+# grouped member an include statement to the documentation, telling the reader
+# which file to include in order to use the member.
+# The default value is: NO.
+
+SHOW_GROUPED_MEMB_INC  = NO
+
+# If the FORCE_LOCAL_INCLUDES tag is set to YES then doxygen will list include
+# files with double quotes in the documentation rather than with sharp brackets.
+# The default value is: NO.
+
+FORCE_LOCAL_INCLUDES   = NO
+
+# If the INLINE_INFO tag is set to YES then a tag [inline] is inserted in the
+# documentation for inline members.
+# The default value is: YES.
+
+INLINE_INFO            = YES
+
+# If the SORT_MEMBER_DOCS tag is set to YES then doxygen will sort the
+# (detailed) documentation of file and class members alphabetically by member
+# name. If set to NO the members will appear in declaration order.
+# The default value is: YES.
+
+SORT_MEMBER_DOCS       = YES
+
+# If the SORT_BRIEF_DOCS tag is set to YES then doxygen will sort the brief
+# descriptions of file, namespace and class members alphabetically by member
+# name. If set to NO the members will appear in declaration order. Note that
+# this will also influence the order of the classes in the class list.
+# The default value is: NO.
+
+SORT_BRIEF_DOCS        = NO
+
+# If the SORT_MEMBERS_CTORS_1ST tag is set to YES then doxygen will sort the
+# (brief and detailed) documentation of class members so that constructors and
+# destructors are listed first. If set to NO the constructors will appear in the
+# respective orders defined by SORT_BRIEF_DOCS and SORT_MEMBER_DOCS.
+# Note: If SORT_BRIEF_DOCS is set to NO this option is ignored for sorting brief
+# member documentation.
+# Note: If SORT_MEMBER_DOCS is set to NO this option is ignored for sorting
+# detailed member documentation.
+# The default value is: NO.
+
+SORT_MEMBERS_CTORS_1ST = NO
+
+# If the SORT_GROUP_NAMES tag is set to YES then doxygen will sort the hierarchy
+# of group names into alphabetical order. If set to NO the group names will
+# appear in their defined order.
+# The default value is: NO.
+
+SORT_GROUP_NAMES       = NO
+
+# If the SORT_BY_SCOPE_NAME tag is set to YES, the class list will be sorted by
+# fully-qualified names, including namespaces. If set to NO, the class list will
+# be sorted only by class name, not including the namespace part.
+# Note: This option is not very useful if HIDE_SCOPE_NAMES is set to YES.
+# Note: This option applies only to the class list, not to the alphabetical
+# list.
+# The default value is: NO.
+
+SORT_BY_SCOPE_NAME     = NO
+
+# If the STRICT_PROTO_MATCHING option is enabled and doxygen fails to do proper
+# type resolution of all parameters of a function it will reject a match between
+# the prototype and the implementation of a member function even if there is
+# only one candidate or it is obvious which candidate to choose by doing a
+# simple string match. By disabling STRICT_PROTO_MATCHING doxygen will still
+# accept a match between prototype and implementation in such cases.
+# The default value is: NO.
+
+STRICT_PROTO_MATCHING  = NO
+
+# The GENERATE_TODOLIST tag can be used to enable ( YES) or disable ( NO) the
+# todo list. This list is created by putting \todo commands in the
+# documentation.
+# The default value is: YES.
+
+GENERATE_TODOLIST      = YES
+
+# The GENERATE_TESTLIST tag can be used to enable ( YES) or disable ( NO) the
+# test list. This list is created by putting \test commands in the
+# documentation.
+# The default value is: YES.
+
+GENERATE_TESTLIST      = YES
+
+# The GENERATE_BUGLIST tag can be used to enable ( YES) or disable ( NO) the bug
+# list. This list is created by putting \bug commands in the documentation.
+# The default value is: YES.
+
+GENERATE_BUGLIST       = YES
+
+# The GENERATE_DEPRECATEDLIST tag can be used to enable ( YES) or disable ( NO)
+# the deprecated list. This list is created by putting \deprecated commands in
+# the documentation.
+# The default value is: YES.
+
+GENERATE_DEPRECATEDLIST= YES
+
+# The ENABLED_SECTIONS tag can be used to enable conditional documentation
+# sections, marked by \if <section_label> ... \endif and \cond <section_label>
+# ... \endcond blocks.
+
+ENABLED_SECTIONS       =
+
+# The MAX_INITIALIZER_LINES tag determines the maximum number of lines that the
+# initial value of a variable or macro / define can have for it to appear in the
+# documentation. If the initializer consists of more lines than specified here
+# it will be hidden. Use a value of 0 to hide initializers completely. The
+# appearance of the value of individual variables and macros / defines can be
+# controlled using \showinitializer or \hideinitializer command in the
+# documentation regardless of this setting.
+# Minimum value: 0, maximum value: 10000, default value: 30.
+
+MAX_INITIALIZER_LINES  = 30
+
+# Set the SHOW_USED_FILES tag to NO to disable the list of files generated at
+# the bottom of the documentation of classes and structs. If set to YES the list
+# will mention the files that were used to generate the documentation.
+# The default value is: YES.
+
+SHOW_USED_FILES        = YES
+
+# Set the SHOW_FILES tag to NO to disable the generation of the Files page. This
+# will remove the Files entry from the Quick Index and from the Folder Tree View
+# (if specified).
+# The default value is: YES.
+
+SHOW_FILES             = YES
+
+# Set the SHOW_NAMESPACES tag to NO to disable the generation of the Namespaces
+# page. This will remove the Namespaces entry from the Quick Index and from the
+# Folder Tree View (if specified).
+# The default value is: YES.
+
+SHOW_NAMESPACES        = YES
+
+# The FILE_VERSION_FILTER tag can be used to specify a program or script that
+# doxygen should invoke to get the current version for each file (typically from
+# the version control system). Doxygen will invoke the program by executing (via
+# popen()) the command command input-file, where command is the value of the
+# FILE_VERSION_FILTER tag, and input-file is the name of an input file provided
+# by doxygen. Whatever the program writes to standard output is used as the file
+# version. For an example see the documentation.
+
+FILE_VERSION_FILTER    =
+
+# The LAYOUT_FILE tag can be used to specify a layout file which will be parsed
+# by doxygen. The layout file controls the global structure of the generated
+# output files in an output format independent way. To create the layout file
+# that represents doxygen's defaults, run doxygen with the -l option. You can
+# optionally specify a file name after the option, if omitted DoxygenLayout.xml
+# will be used as the name of the layout file.
+#
+# Note that if you run doxygen from a directory containing a file called
+# DoxygenLayout.xml, doxygen will parse it automatically even if the LAYOUT_FILE
+# tag is left empty.
+
+LAYOUT_FILE            =
+
+# The CITE_BIB_FILES tag can be used to specify one or more bib files containing
+# the reference definitions. This must be a list of .bib files. The .bib
+# extension is automatically appended if omitted. This requires the bibtex tool
+# to be installed. See also http://en.wikipedia.org/wiki/BibTeX for more info.
+# For LaTeX the style of the bibliography can be controlled using
+# LATEX_BIB_STYLE. To use this feature you need bibtex and perl available in the
+# search path. Do not use file names with spaces, bibtex cannot handle them. See
+# also \cite for info how to create references.
+
+CITE_BIB_FILES         =
+
+#---------------------------------------------------------------------------
+# Configuration options related to warning and progress messages
+#---------------------------------------------------------------------------
+
+# The QUIET tag can be used to turn on/off the messages that are generated to
+# standard output by doxygen. If QUIET is set to YES this implies that the
+# messages are off.
+# The default value is: NO.
+
+QUIET                  = NO
+
+# The WARNINGS tag can be used to turn on/off the warning messages that are
+# generated to standard error ( stderr) by doxygen. If WARNINGS is set to YES
+# this implies that the warnings are on.
+#
+# Tip: Turn warnings on while writing the documentation.
+# The default value is: YES.
+
+WARNINGS               = YES
+
+# If the WARN_IF_UNDOCUMENTED tag is set to YES, then doxygen will generate
+# warnings for undocumented members. If EXTRACT_ALL is set to YES then this flag
+# will automatically be disabled.
+# The default value is: YES.
+
+WARN_IF_UNDOCUMENTED   = YES
+
+# If the WARN_IF_DOC_ERROR tag is set to YES, doxygen will generate warnings for
+# potential errors in the documentation, such as not documenting some parameters
+# in a documented function, or documenting parameters that don't exist or using
+# markup commands wrongly.
+# The default value is: YES.
+
+WARN_IF_DOC_ERROR      = YES
+
+# This WARN_NO_PARAMDOC option can be enabled to get warnings for functions that
+# are documented, but have no documentation for their parameters or return
+# value. If set to NO doxygen will only warn about wrong or incomplete parameter
+# documentation, but not about the absence of documentation.
+# The default value is: NO.
+
+WARN_NO_PARAMDOC       = NO
+
+# The WARN_FORMAT tag determines the format of the warning messages that doxygen
+# can produce. The string should contain the $file, $line, and $text tags, which
+# will be replaced by the file and line number from which the warning originated
+# and the warning text. Optionally the format may contain $version, which will
+# be replaced by the version of the file (if it could be obtained via
+# FILE_VERSION_FILTER)
+# The default value is: $file:$line: $text.
+
+WARN_FORMAT            = "$file:$line: $text"
+
+# The WARN_LOGFILE tag can be used to specify a file to which warning and error
+# messages should be written. If left blank the output is written to standard
+# error (stderr).
+
+WARN_LOGFILE           =
+
+#---------------------------------------------------------------------------
+# Configuration options related to the input files
+#---------------------------------------------------------------------------
+
+# The INPUT tag is used to specify the files and/or directories that contain
+# documented source files. You may enter file names like myfile.cpp or
+# directories like /usr/src/myproject. Separate the files or directories with
+# spaces.
+# Note: If this tag is empty the current directory is searched.
+
+INPUT                  =
+
+# This tag can be used to specify the character encoding of the source files
+# that doxygen parses. Internally doxygen uses the UTF-8 encoding. Doxygen uses
+# libiconv (or the iconv built into libc) for the transcoding. See the libiconv
+# documentation (see: http://www.gnu.org/software/libiconv) for the list of
+# possible encodings.
+# The default value is: UTF-8.
+
+INPUT_ENCODING         = UTF-8
+
+# If the value of the INPUT tag contains directories, you can use the
+# FILE_PATTERNS tag to specify one or more wildcard patterns (like *.cpp and
+# *.h) to filter out the source-files in the directories. If left blank the
+# following patterns are tested:*.c, *.cc, *.cxx, *.cpp, *.c++, *.java, *.ii,
+# *.ixx, *.ipp, *.i++, *.inl, *.idl, *.ddl, *.odl, *.h, *.hh, *.hxx, *.hpp,
+# *.h++, *.cs, *.d, *.php, *.php4, *.php5, *.phtml, *.inc, *.m, *.markdown,
+# *.md, *.mm, *.dox, *.py, *.f90, *.f, *.for, *.tcl, *.vhd, *.vhdl, *.ucf,
+# *.qsf, *.as and *.js.
+
+FILE_PATTERNS          =
+
+# The RECURSIVE tag can be used to specify whether or not subdirectories should
+# be searched for input files as well.
+# The default value is: NO.
+
+RECURSIVE              = NO
+
+# The EXCLUDE tag can be used to specify files and/or directories that should be
+# excluded from the INPUT source files. This way you can easily exclude a
+# subdirectory from a directory tree whose root is specified with the INPUT tag.
+#
+# Note that relative paths are relative to the directory from which doxygen is
+# run.
+
+EXCLUDE                =
+
+# The EXCLUDE_SYMLINKS tag can be used to select whether or not files or
+# directories that are symbolic links (a Unix file system feature) are excluded
+# from the input.
+# The default value is: NO.
+
+EXCLUDE_SYMLINKS       = NO
+
+# If the value of the INPUT tag contains directories, you can use the
+# EXCLUDE_PATTERNS tag to specify one or more wildcard patterns to exclude
+# certain files from those directories.
+#
+# Note that the wildcards are matched against the file with absolute path, so to
+# exclude all test directories for example use the pattern */test/*
+
+EXCLUDE_PATTERNS       =
+
+# The EXCLUDE_SYMBOLS tag can be used to specify one or more symbol names
+# (namespaces, classes, functions, etc.) that should be excluded from the
+# output. The symbol name can be a fully qualified name, a word, or if the
+# wildcard * is used, a substring. Examples: ANamespace, AClass,
+# AClass::ANamespace, ANamespace::*Test
+#
+# Note that the wildcards are matched against the file with absolute path, so to
+# exclude all test directories use the pattern */test/*
+
+EXCLUDE_SYMBOLS        =
+
+# The EXAMPLE_PATH tag can be used to specify one or more files or directories
+# that contain example code fragments that are included (see the \include
+# command).
+
+EXAMPLE_PATH           =
+
+# If the value of the EXAMPLE_PATH tag contains directories, you can use the
+# EXAMPLE_PATTERNS tag to specify one or more wildcard pattern (like *.cpp and
+# *.h) to filter out the source-files in the directories. If left blank all
+# files are included.
+
+EXAMPLE_PATTERNS       =
+
+# If the EXAMPLE_RECURSIVE tag is set to YES then subdirectories will be
+# searched for input files to be used with the \include or \dontinclude commands
+# irrespective of the value of the RECURSIVE tag.
+# The default value is: NO.
+
+EXAMPLE_RECURSIVE      = NO
+
+# The IMAGE_PATH tag can be used to specify one or more files or directories
+# that contain images that are to be included in the documentation (see the
+# \image command).
+
+IMAGE_PATH             =
+
+# The INPUT_FILTER tag can be used to specify a program that doxygen should
+# invoke to filter for each input file. Doxygen will invoke the filter program
+# by executing (via popen()) the command:
+#
+# <filter> <input-file>
+#
+# where <filter> is the value of the INPUT_FILTER tag, and <input-file> is the
+# name of an input file. Doxygen will then use the output that the filter
+# program writes to standard output. If FILTER_PATTERNS is specified, this tag
+# will be ignored.
+#
+# Note that the filter must not add or remove lines; it is applied before the
+# code is scanned, but not when the output code is generated. If lines are added
+# or removed, the anchors will not be placed correctly.
+
+INPUT_FILTER           =
+
+# The FILTER_PATTERNS tag can be used to specify filters on a per file pattern
+# basis. Doxygen will compare the file name with each pattern and apply the
+# filter if there is a match. The filters are a list of the form: pattern=filter
+# (like *.cpp=my_cpp_filter). See INPUT_FILTER for further information on how
+# filters are used. If the FILTER_PATTERNS tag is empty or if none of the
+# patterns match the file name, INPUT_FILTER is applied.
+
+FILTER_PATTERNS        =
+
+# If the FILTER_SOURCE_FILES tag is set to YES, the input filter (if set using
+# INPUT_FILTER ) will also be used to filter the input files that are used for
+# producing the source files to browse (i.e. when SOURCE_BROWSER is set to YES).
+# The default value is: NO.
+
+FILTER_SOURCE_FILES    = NO
+
+# The FILTER_SOURCE_PATTERNS tag can be used to specify source filters per file
+# pattern. A pattern will override the setting for FILTER_PATTERN (if any) and
+# it is also possible to disable source filtering for a specific pattern using
+# *.ext= (so without naming a filter).
+# This tag requires that the tag FILTER_SOURCE_FILES is set to YES.
+
+FILTER_SOURCE_PATTERNS =
+
+# If the USE_MDFILE_AS_MAINPAGE tag refers to the name of a markdown file that
+# is part of the input, its contents will be placed on the main page
+# (index.html). This can be useful if you have a project on for instance GitHub
+# and want to reuse the introduction page also for the doxygen output.
+
+USE_MDFILE_AS_MAINPAGE =
+
+#---------------------------------------------------------------------------
+# Configuration options related to source browsing
+#---------------------------------------------------------------------------
+
+# If the SOURCE_BROWSER tag is set to YES then a list of source files will be
+# generated. Documented entities will be cross-referenced with these sources.
+#
+# Note: To get rid of all source code in the generated output, make sure that
+# also VERBATIM_HEADERS is set to NO.
+# The default value is: NO.
+
+SOURCE_BROWSER         = NO
+
+# Setting the INLINE_SOURCES tag to YES will include the body of functions,
+# classes and enums directly into the documentation.
+# The default value is: NO.
+
+INLINE_SOURCES         = NO
+
+# Setting the STRIP_CODE_COMMENTS tag to YES will instruct doxygen to hide any
+# special comment blocks from generated source code fragments. Normal C, C++ and
+# Fortran comments will always remain visible.
+# The default value is: YES.
+
+STRIP_CODE_COMMENTS    = YES
+
+# If the REFERENCED_BY_RELATION tag is set to YES then for each documented
+# function all documented functions referencing it will be listed.
+# The default value is: NO.
+
+REFERENCED_BY_RELATION = NO
+
+# If the REFERENCES_RELATION tag is set to YES then for each documented function
+# all documented entities called/used by that function will be listed.
+# The default value is: NO.
+
+REFERENCES_RELATION    = NO
+
+# If the REFERENCES_LINK_SOURCE tag is set to YES and SOURCE_BROWSER tag is set
+# to YES, then the hyperlinks from functions in REFERENCES_RELATION and
+# REFERENCED_BY_RELATION lists will link to the source code. Otherwise they will
+# link to the documentation.
+# The default value is: YES.
+
+REFERENCES_LINK_SOURCE = YES
+
+# If SOURCE_TOOLTIPS is enabled (the default) then hovering a hyperlink in the
+# source code will show a tooltip with additional information such as prototype,
+# brief description and links to the definition and documentation. Since this
+# will make the HTML file larger and loading of large files a bit slower, you
+# can opt to disable this feature.
+# The default value is: YES.
+# This tag requires that the tag SOURCE_BROWSER is set to YES.
+
+SOURCE_TOOLTIPS        = YES
+
+# If the USE_HTAGS tag is set to YES then the references to source code will
+# point to the HTML generated by the htags(1) tool instead of doxygen built-in
+# source browser. The htags tool is part of GNU's global source tagging system
+# (see http://www.gnu.org/software/global/global.html). You will need version
+# 4.8.6 or higher.
+#
+# To use it do the following:
+# - Install the latest version of global
+# - Enable SOURCE_BROWSER and USE_HTAGS in the config file
+# - Make sure the INPUT points to the root of the source tree
+# - Run doxygen as normal
+#
+# Doxygen will invoke htags (and that will in turn invoke gtags), so these
+# tools must be available from the command line (i.e. in the search path).
+#
+# The result: instead of the source browser generated by doxygen, the links to
+# source code will now point to the output of htags.
+# The default value is: NO.
+# This tag requires that the tag SOURCE_BROWSER is set to YES.
+
+USE_HTAGS              = NO
+
+# If the VERBATIM_HEADERS tag is set the YES then doxygen will generate a
+# verbatim copy of the header file for each class for which an include is
+# specified. Set to NO to disable this.
+# See also: Section \class.
+# The default value is: YES.
+
+VERBATIM_HEADERS       = YES
+
+#---------------------------------------------------------------------------
+# Configuration options related to the alphabetical class index
+#---------------------------------------------------------------------------
+
+# If the ALPHABETICAL_INDEX tag is set to YES, an alphabetical index of all
+# compounds will be generated. Enable this if the project contains a lot of
+# classes, structs, unions or interfaces.
+# The default value is: YES.
+
+ALPHABETICAL_INDEX     = YES
+
+# The COLS_IN_ALPHA_INDEX tag can be used to specify the number of columns in
+# which the alphabetical index list will be split.
+# Minimum value: 1, maximum value: 20, default value: 5.
+# This tag requires that the tag ALPHABETICAL_INDEX is set to YES.
+
+COLS_IN_ALPHA_INDEX    = 5
+
+# In case all classes in a project start with a common prefix, all classes will
+# be put under the same header in the alphabetical index. The IGNORE_PREFIX tag
+# can be used to specify a prefix (or a list of prefixes) that should be ignored
+# while generating the index headers.
+# This tag requires that the tag ALPHABETICAL_INDEX is set to YES.
+
+IGNORE_PREFIX          =
+
+#---------------------------------------------------------------------------
+# Configuration options related to the HTML output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_HTML tag is set to YES doxygen will generate HTML output
+# The default value is: YES.
+
+GENERATE_HTML          = YES
+
+# The HTML_OUTPUT tag is used to specify where the HTML docs will be put. If a
+# relative path is entered the value of OUTPUT_DIRECTORY will be put in front of
+# it.
+# The default directory is: html.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_OUTPUT            = html
+
+# The HTML_FILE_EXTENSION tag can be used to specify the file extension for each
+# generated HTML page (for example: .htm, .php, .asp).
+# The default value is: .html.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_FILE_EXTENSION    = .html
+
+# The HTML_HEADER tag can be used to specify a user-defined HTML header file for
+# each generated HTML page. If the tag is left blank doxygen will generate a
+# standard header.
+#
+# To get valid HTML the header file that includes any scripts and style sheets
+# that doxygen needs, which is dependent on the configuration options used (e.g.
+# the setting GENERATE_TREEVIEW). It is highly recommended to start with a
+# default header using
+# doxygen -w html new_header.html new_footer.html new_stylesheet.css
+# YourConfigFile
+# and then modify the file new_header.html. See also section "Doxygen usage"
+# for information on how to generate the default header that doxygen normally
+# uses.
+# Note: The header is subject to change so you typically have to regenerate the
+# default header when upgrading to a newer version of doxygen. For a description
+# of the possible markers and block names see the documentation.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_HEADER            =
+
+# The HTML_FOOTER tag can be used to specify a user-defined HTML footer for each
+# generated HTML page. If the tag is left blank doxygen will generate a standard
+# footer. See HTML_HEADER for more information on how to generate a default
+# footer and what special commands can be used inside the footer. See also
+# section "Doxygen usage" for information on how to generate the default footer
+# that doxygen normally uses.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_FOOTER            =
+
+# The HTML_STYLESHEET tag can be used to specify a user-defined cascading style
+# sheet that is used by each HTML page. It can be used to fine-tune the look of
+# the HTML output. If left blank doxygen will generate a default style sheet.
+# See also section "Doxygen usage" for information on how to generate the style
+# sheet that doxygen normally uses.
+# Note: It is recommended to use HTML_EXTRA_STYLESHEET instead of this tag, as
+# it is more robust and this tag (HTML_STYLESHEET) will in the future become
+# obsolete.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_STYLESHEET        =
+
+# The HTML_EXTRA_STYLESHEET tag can be used to specify an additional user-
+# defined cascading style sheet that is included after the standard style sheets
+# created by doxygen. Using this option one can overrule certain style aspects.
+# This is preferred over using HTML_STYLESHEET since it does not replace the
+# standard style sheet and is therefor more robust against future updates.
+# Doxygen will copy the style sheet file to the output directory. For an example
+# see the documentation.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_EXTRA_STYLESHEET  =
+
+# The HTML_EXTRA_FILES tag can be used to specify one or more extra images or
+# other source files which should be copied to the HTML output directory. Note
+# that these files will be copied to the base HTML output directory. Use the
+# $relpath^ marker in the HTML_HEADER and/or HTML_FOOTER files to load these
+# files. In the HTML_STYLESHEET file, use the file name only. Also note that the
+# files will be copied as-is; there are no commands or markers available.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_EXTRA_FILES       =
+
+# The HTML_COLORSTYLE_HUE tag controls the color of the HTML output. Doxygen
+# will adjust the colors in the stylesheet and background images according to
+# this color. Hue is specified as an angle on a colorwheel, see
+# http://en.wikipedia.org/wiki/Hue for more information. For instance the value
+# 0 represents red, 60 is yellow, 120 is green, 180 is cyan, 240 is blue, 300
+# purple, and 360 is red again.
+# Minimum value: 0, maximum value: 359, default value: 220.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_COLORSTYLE_HUE    = 220
+
+# The HTML_COLORSTYLE_SAT tag controls the purity (or saturation) of the colors
+# in the HTML output. For a value of 0 the output will use grayscales only. A
+# value of 255 will produce the most vivid colors.
+# Minimum value: 0, maximum value: 255, default value: 100.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_COLORSTYLE_SAT    = 100
+
+# The HTML_COLORSTYLE_GAMMA tag controls the gamma correction applied to the
+# luminance component of the colors in the HTML output. Values below 100
+# gradually make the output lighter, whereas values above 100 make the output
+# darker. The value divided by 100 is the actual gamma applied, so 80 represents
+# a gamma of 0.8, The value 220 represents a gamma of 2.2, and 100 does not
+# change the gamma.
+# Minimum value: 40, maximum value: 240, default value: 80.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_COLORSTYLE_GAMMA  = 80
+
+# If the HTML_TIMESTAMP tag is set to YES then the footer of each generated HTML
+# page will contain the date and time when the page was generated. Setting this
+# to NO can help when comparing the output of multiple runs.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_TIMESTAMP         = YES
+
+# If the HTML_DYNAMIC_SECTIONS tag is set to YES then the generated HTML
+# documentation will contain sections that can be hidden and shown after the
+# page has loaded.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_DYNAMIC_SECTIONS  = NO
+
+# With HTML_INDEX_NUM_ENTRIES one can control the preferred number of entries
+# shown in the various tree structured indices initially; the user can expand
+# and collapse entries dynamically later on. Doxygen will expand the tree to
+# such a level that at most the specified number of entries are visible (unless
+# a fully collapsed tree already exceeds this amount). So setting the number of
+# entries 1 will produce a full collapsed tree by default. 0 is a special value
+# representing an infinite number of entries and will result in a full expanded
+# tree by default.
+# Minimum value: 0, maximum value: 9999, default value: 100.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_INDEX_NUM_ENTRIES = 100
+
+# If the GENERATE_DOCSET tag is set to YES, additional index files will be
+# generated that can be used as input for Apple's Xcode 3 integrated development
+# environment (see: http://developer.apple.com/tools/xcode/), introduced with
+# OSX 10.5 (Leopard). To create a documentation set, doxygen will generate a
+# Makefile in the HTML output directory. Running make will produce the docset in
+# that directory and running make install will install the docset in
+# ~/Library/Developer/Shared/Documentation/DocSets so that Xcode will find it at
+# startup. See http://developer.apple.com/tools/creatingdocsetswithdoxygen.html
+# for more information.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+GENERATE_DOCSET        = NO
+
+# This tag determines the name of the docset feed. A documentation feed provides
+# an umbrella under which multiple documentation sets from a single provider
+# (such as a company or product suite) can be grouped.
+# The default value is: Doxygen generated docs.
+# This tag requires that the tag GENERATE_DOCSET is set to YES.
+
+DOCSET_FEEDNAME        = "Doxygen generated docs"
+
+# This tag specifies a string that should uniquely identify the documentation
+# set bundle. This should be a reverse domain-name style string, e.g.
+# com.mycompany.MyDocSet. Doxygen will append .docset to the name.
+# The default value is: org.doxygen.Project.
+# This tag requires that the tag GENERATE_DOCSET is set to YES.
+
+DOCSET_BUNDLE_ID       = org.doxygen.Project
+
+# The DOCSET_PUBLISHER_ID tag specifies a string that should uniquely identify
+# the documentation publisher. This should be a reverse domain-name style
+# string, e.g. com.mycompany.MyDocSet.documentation.
+# The default value is: org.doxygen.Publisher.
+# This tag requires that the tag GENERATE_DOCSET is set to YES.
+
+DOCSET_PUBLISHER_ID    = org.doxygen.Publisher
+
+# The DOCSET_PUBLISHER_NAME tag identifies the documentation publisher.
+# The default value is: Publisher.
+# This tag requires that the tag GENERATE_DOCSET is set to YES.
+
+DOCSET_PUBLISHER_NAME  = Publisher
+
+# If the GENERATE_HTMLHELP tag is set to YES then doxygen generates three
+# additional HTML index files: index.hhp, index.hhc, and index.hhk. The
+# index.hhp is a project file that can be read by Microsoft's HTML Help Workshop
+# (see: http://www.microsoft.com/en-us/download/details.aspx?id=21138) on
+# Windows.
+#
+# The HTML Help Workshop contains a compiler that can convert all HTML output
+# generated by doxygen into a single compiled HTML file (.chm). Compiled HTML
+# files are now used as the Windows 98 help format, and will replace the old
+# Windows help format (.hlp) on all Windows platforms in the future. Compressed
+# HTML files also contain an index, a table of contents, and you can search for
+# words in the documentation. The HTML workshop also contains a viewer for
+# compressed HTML files.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+GENERATE_HTMLHELP      = NO
+
+# The CHM_FILE tag can be used to specify the file name of the resulting .chm
+# file. You can add a path in front of the file if the result should not be
+# written to the html output directory.
+# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
+
+CHM_FILE               =
+
+# The HHC_LOCATION tag can be used to specify the location (absolute path
+# including file name) of the HTML help compiler ( hhc.exe). If non-empty
+# doxygen will try to run the HTML help compiler on the generated index.hhp.
+# The file has to be specified with full path.
+# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
+
+HHC_LOCATION           =
+
+# The GENERATE_CHI flag controls if a separate .chi index file is generated (
+# YES) or that it should be included in the master .chm file ( NO).
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
+
+GENERATE_CHI           = NO
+
+# The CHM_INDEX_ENCODING is used to encode HtmlHelp index ( hhk), content ( hhc)
+# and project file content.
+# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
+
+CHM_INDEX_ENCODING     =
+
+# The BINARY_TOC flag controls whether a binary table of contents is generated (
+# YES) or a normal table of contents ( NO) in the .chm file.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
+
+BINARY_TOC             = NO
+
+# The TOC_EXPAND flag can be set to YES to add extra items for group members to
+# the table of contents of the HTML help documentation and to the tree view.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
+
+TOC_EXPAND             = NO
+
+# If the GENERATE_QHP tag is set to YES and both QHP_NAMESPACE and
+# QHP_VIRTUAL_FOLDER are set, an additional index file will be generated that
+# can be used as input for Qt's qhelpgenerator to generate a Qt Compressed Help
+# (.qch) of the generated HTML documentation.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+GENERATE_QHP           = NO
+
+# If the QHG_LOCATION tag is specified, the QCH_FILE tag can be used to specify
+# the file name of the resulting .qch file. The path specified is relative to
+# the HTML output folder.
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QCH_FILE               =
+
+# The QHP_NAMESPACE tag specifies the namespace to use when generating Qt Help
+# Project output. For more information please see Qt Help Project / Namespace
+# (see: http://qt-project.org/doc/qt-4.8/qthelpproject.html#namespace).
+# The default value is: org.doxygen.Project.
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QHP_NAMESPACE          = org.doxygen.Project
+
+# The QHP_VIRTUAL_FOLDER tag specifies the namespace to use when generating Qt
+# Help Project output. For more information please see Qt Help Project / Virtual
+# Folders (see: http://qt-project.org/doc/qt-4.8/qthelpproject.html#virtual-
+# folders).
+# The default value is: doc.
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QHP_VIRTUAL_FOLDER     = doc
+
+# If the QHP_CUST_FILTER_NAME tag is set, it specifies the name of a custom
+# filter to add. For more information please see Qt Help Project / Custom
+# Filters (see: http://qt-project.org/doc/qt-4.8/qthelpproject.html#custom-
+# filters).
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QHP_CUST_FILTER_NAME   =
+
+# The QHP_CUST_FILTER_ATTRS tag specifies the list of the attributes of the
+# custom filter to add. For more information please see Qt Help Project / Custom
+# Filters (see: http://qt-project.org/doc/qt-4.8/qthelpproject.html#custom-
+# filters).
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QHP_CUST_FILTER_ATTRS  =
+
+# The QHP_SECT_FILTER_ATTRS tag specifies the list of the attributes this
+# project's filter section matches. Qt Help Project / Filter Attributes (see:
+# http://qt-project.org/doc/qt-4.8/qthelpproject.html#filter-attributes).
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QHP_SECT_FILTER_ATTRS  =
+
+# The QHG_LOCATION tag can be used to specify the location of Qt's
+# qhelpgenerator. If non-empty doxygen will try to run qhelpgenerator on the
+# generated .qhp file.
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QHG_LOCATION           =
+
+# If the GENERATE_ECLIPSEHELP tag is set to YES, additional index files will be
+# generated, together with the HTML files, they form an Eclipse help plugin. To
+# install this plugin and make it available under the help contents menu in
+# Eclipse, the contents of the directory containing the HTML and XML files needs
+# to be copied into the plugins directory of eclipse. The name of the directory
+# within the plugins directory should be the same as the ECLIPSE_DOC_ID value.
+# After copying Eclipse needs to be restarted before the help appears.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+GENERATE_ECLIPSEHELP   = NO
+
+# A unique identifier for the Eclipse help plugin. When installing the plugin
+# the directory name containing the HTML and XML files should also have this
+# name. Each documentation set should have its own identifier.
+# The default value is: org.doxygen.Project.
+# This tag requires that the tag GENERATE_ECLIPSEHELP is set to YES.
+
+ECLIPSE_DOC_ID         = org.doxygen.Project
+
+# If you want full control over the layout of the generated HTML pages it might
+# be necessary to disable the index and replace it with your own. The
+# DISABLE_INDEX tag can be used to turn on/off the condensed index (tabs) at top
+# of each HTML page. A value of NO enables the index and the value YES disables
+# it. Since the tabs in the index contain the same information as the navigation
+# tree, you can set this option to YES if you also set GENERATE_TREEVIEW to YES.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+DISABLE_INDEX          = NO
+
+# The GENERATE_TREEVIEW tag is used to specify whether a tree-like index
+# structure should be generated to display hierarchical information. If the tag
+# value is set to YES, a side panel will be generated containing a tree-like
+# index structure (just like the one that is generated for HTML Help). For this
+# to work a browser that supports JavaScript, DHTML, CSS and frames is required
+# (i.e. any modern browser). Windows users are probably better off using the
+# HTML help feature. Via custom stylesheets (see HTML_EXTRA_STYLESHEET) one can
+# further fine-tune the look of the index. As an example, the default style
+# sheet generated by doxygen has an example that shows how to put an image at
+# the root of the tree instead of the PROJECT_NAME. Since the tree basically has
+# the same information as the tab index, you could consider setting
+# DISABLE_INDEX to YES when enabling this option.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+GENERATE_TREEVIEW      = NO
+
+# The ENUM_VALUES_PER_LINE tag can be used to set the number of enum values that
+# doxygen will group on one line in the generated HTML documentation.
+#
+# Note that a value of 0 will completely suppress the enum values from appearing
+# in the overview section.
+# Minimum value: 0, maximum value: 20, default value: 4.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+ENUM_VALUES_PER_LINE   = 4
+
+# If the treeview is enabled (see GENERATE_TREEVIEW) then this tag can be used
+# to set the initial width (in pixels) of the frame in which the tree is shown.
+# Minimum value: 0, maximum value: 1500, default value: 250.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+TREEVIEW_WIDTH         = 250
+
+# When the EXT_LINKS_IN_WINDOW option is set to YES doxygen will open links to
+# external symbols imported via tag files in a separate window.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+EXT_LINKS_IN_WINDOW    = NO
+
+# Use this tag to change the font size of LaTeX formulas included as images in
+# the HTML documentation. When you change the font size after a successful
+# doxygen run you need to manually remove any form_*.png images from the HTML
+# output directory to force them to be regenerated.
+# Minimum value: 8, maximum value: 50, default value: 10.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+FORMULA_FONTSIZE       = 10
+
+# Use the FORMULA_TRANPARENT tag to determine whether or not the images
+# generated for formulas are transparent PNGs. Transparent PNGs are not
+# supported properly for IE 6.0, but are supported on all modern browsers.
+#
+# Note that when changing this option you need to delete any form_*.png files in
+# the HTML output directory before the changes have effect.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+FORMULA_TRANSPARENT    = YES
+
+# Enable the USE_MATHJAX option to render LaTeX formulas using MathJax (see
+# http://www.mathjax.org) which uses client side Javascript for the rendering
+# instead of using prerendered bitmaps. Use this if you do not have LaTeX
+# installed or if you want to formulas look prettier in the HTML output. When
+# enabled you may also need to install MathJax separately and configure the path
+# to it using the MATHJAX_RELPATH option.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+USE_MATHJAX            = NO
+
+# When MathJax is enabled you can set the default output format to be used for
+# the MathJax output. See the MathJax site (see:
+# http://docs.mathjax.org/en/latest/output.html) for more details.
+# Possible values are: HTML-CSS (which is slower, but has the best
+# compatibility), NativeMML (i.e. MathML) and SVG.
+# The default value is: HTML-CSS.
+# This tag requires that the tag USE_MATHJAX is set to YES.
+
+MATHJAX_FORMAT         = HTML-CSS
+
+# When MathJax is enabled you need to specify the location relative to the HTML
+# output directory using the MATHJAX_RELPATH option. The destination directory
+# should contain the MathJax.js script. For instance, if the mathjax directory
+# is located at the same level as the HTML output directory, then
+# MATHJAX_RELPATH should be ../mathjax. The default value points to the MathJax
+# Content Delivery Network so you can quickly see the result without installing
+# MathJax. However, it is strongly recommended to install a local copy of
+# MathJax from http://www.mathjax.org before deployment.
+# The default value is: http://cdn.mathjax.org/mathjax/latest.
+# This tag requires that the tag USE_MATHJAX is set to YES.
+
+MATHJAX_RELPATH        = http://cdn.mathjax.org/mathjax/latest
+
+# The MATHJAX_EXTENSIONS tag can be used to specify one or more MathJax
+# extension names that should be enabled during MathJax rendering. For example
+# MATHJAX_EXTENSIONS = TeX/AMSmath TeX/AMSsymbols
+# This tag requires that the tag USE_MATHJAX is set to YES.
+
+MATHJAX_EXTENSIONS     =
+
+# The MATHJAX_CODEFILE tag can be used to specify a file with javascript pieces
+# of code that will be used on startup of the MathJax code. See the MathJax site
+# (see: http://docs.mathjax.org/en/latest/output.html) for more details. For an
+# example see the documentation.
+# This tag requires that the tag USE_MATHJAX is set to YES.
+
+MATHJAX_CODEFILE       =
+
+# When the SEARCHENGINE tag is enabled doxygen will generate a search box for
+# the HTML output. The underlying search engine uses javascript and DHTML and
+# should work on any modern browser. Note that when using HTML help
+# (GENERATE_HTMLHELP), Qt help (GENERATE_QHP), or docsets (GENERATE_DOCSET)
+# there is already a search function so this one should typically be disabled.
+# For large projects the javascript based search engine can be slow, then
+# enabling SERVER_BASED_SEARCH may provide a better solution. It is possible to
+# search using the keyboard; to jump to the search box use <access key> + S
+# (what the <access key> is depends on the OS and browser, but it is typically
+# <CTRL>, <ALT>/<option>, or both). Inside the search box use the <cursor down
+# key> to jump into the search results window, the results can be navigated
+# using the <cursor keys>. Press <Enter> to select an item or <escape> to cancel
+# the search. The filter options can be selected when the cursor is inside the
+# search box by pressing <Shift>+<cursor down>. Also here use the <cursor keys>
+# to select a filter and <Enter> or <escape> to activate or cancel the filter
+# option.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+SEARCHENGINE           = YES
+
+# When the SERVER_BASED_SEARCH tag is enabled the search engine will be
+# implemented using a web server instead of a web client using Javascript. There
+# are two flavours of web server based searching depending on the
+# EXTERNAL_SEARCH setting. When disabled, doxygen will generate a PHP script for
+# searching and an index file used by the script. When EXTERNAL_SEARCH is
+# enabled the indexing and searching needs to be provided by external tools. See
+# the section "External Indexing and Searching" for details.
+# The default value is: NO.
+# This tag requires that the tag SEARCHENGINE is set to YES.
+
+SERVER_BASED_SEARCH    = NO
+
+# When EXTERNAL_SEARCH tag is enabled doxygen will no longer generate the PHP
+# script for searching. Instead the search results are written to an XML file
+# which needs to be processed by an external indexer. Doxygen will invoke an
+# external search engine pointed to by the SEARCHENGINE_URL option to obtain the
+# search results.
+#
+# Doxygen ships with an example indexer ( doxyindexer) and search engine
+# (doxysearch.cgi) which are based on the open source search engine library
+# Xapian (see: http://xapian.org/).
+#
+# See the section "External Indexing and Searching" for details.
+# The default value is: NO.
+# This tag requires that the tag SEARCHENGINE is set to YES.
+
+EXTERNAL_SEARCH        = NO
+
+# The SEARCHENGINE_URL should point to a search engine hosted by a web server
+# which will return the search results when EXTERNAL_SEARCH is enabled.
+#
+# Doxygen ships with an example indexer ( doxyindexer) and search engine
+# (doxysearch.cgi) which are based on the open source search engine library
+# Xapian (see: http://xapian.org/). See the section "External Indexing and
+# Searching" for details.
+# This tag requires that the tag SEARCHENGINE is set to YES.
+
+SEARCHENGINE_URL       =
+
+# When SERVER_BASED_SEARCH and EXTERNAL_SEARCH are both enabled the unindexed
+# search data is written to a file for indexing by an external tool. With the
+# SEARCHDATA_FILE tag the name of this file can be specified.
+# The default file is: searchdata.xml.
+# This tag requires that the tag SEARCHENGINE is set to YES.
+
+SEARCHDATA_FILE        = searchdata.xml
+
+# When SERVER_BASED_SEARCH and EXTERNAL_SEARCH are both enabled the
+# EXTERNAL_SEARCH_ID tag can be used as an identifier for the project. This is
+# useful in combination with EXTRA_SEARCH_MAPPINGS to search through multiple
+# projects and redirect the results back to the right project.
+# This tag requires that the tag SEARCHENGINE is set to YES.
+
+EXTERNAL_SEARCH_ID     =
+
+# The EXTRA_SEARCH_MAPPINGS tag can be used to enable searching through doxygen
+# projects other than the one defined by this configuration file, but that are
+# all added to the same external search index. Each project needs to have a
+# unique id set via EXTERNAL_SEARCH_ID. The search mapping then maps the id of
+# to a relative location where the documentation can be found. The format is:
+# EXTRA_SEARCH_MAPPINGS = tagname1=loc1 tagname2=loc2 ...
+# This tag requires that the tag SEARCHENGINE is set to YES.
+
+EXTRA_SEARCH_MAPPINGS  =
+
+#---------------------------------------------------------------------------
+# Configuration options related to the LaTeX output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_LATEX tag is set to YES doxygen will generate LaTeX output.
+# The default value is: YES.
+
+GENERATE_LATEX         = YES
+
+# The LATEX_OUTPUT tag is used to specify where the LaTeX docs will be put. If a
+# relative path is entered the value of OUTPUT_DIRECTORY will be put in front of
+# it.
+# The default directory is: latex.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_OUTPUT           = latex
+
+# The LATEX_CMD_NAME tag can be used to specify the LaTeX command name to be
+# invoked.
+#
+# Note that when enabling USE_PDFLATEX this option is only used for generating
+# bitmaps for formulas in the HTML output, but not in the Makefile that is
+# written to the output directory.
+# The default file is: latex.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_CMD_NAME         = latex
+
+# The MAKEINDEX_CMD_NAME tag can be used to specify the command name to generate
+# index for LaTeX.
+# The default file is: makeindex.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+MAKEINDEX_CMD_NAME     = makeindex
+
+# If the COMPACT_LATEX tag is set to YES doxygen generates more compact LaTeX
+# documents. This may be useful for small projects and may help to save some
+# trees in general.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+COMPACT_LATEX          = NO
+
+# The PAPER_TYPE tag can be used to set the paper type that is used by the
+# printer.
+# Possible values are: a4 (210 x 297 mm), letter (8.5 x 11 inches), legal (8.5 x
+# 14 inches) and executive (7.25 x 10.5 inches).
+# The default value is: a4.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+PAPER_TYPE             = a4
+
+# The EXTRA_PACKAGES tag can be used to specify one or more LaTeX package names
+# that should be included in the LaTeX output. To get the times font for
+# instance you can specify
+# EXTRA_PACKAGES=times
+# If left blank no extra packages will be included.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+EXTRA_PACKAGES         =
+
+# The LATEX_HEADER tag can be used to specify a personal LaTeX header for the
+# generated LaTeX document. The header should contain everything until the first
+# chapter. If it is left blank doxygen will generate a standard header. See
+# section "Doxygen usage" for information on how to let doxygen write the
+# default header to a separate file.
+#
+# Note: Only use a user-defined header if you know what you are doing! The
+# following commands have a special meaning inside the header: $title,
+# $datetime, $date, $doxygenversion, $projectname, $projectnumber. Doxygen will
+# replace them by respectively the title of the page, the current date and time,
+# only the current date, the version number of doxygen, the project name (see
+# PROJECT_NAME), or the project number (see PROJECT_NUMBER).
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_HEADER           =
+
+# The LATEX_FOOTER tag can be used to specify a personal LaTeX footer for the
+# generated LaTeX document. The footer should contain everything after the last
+# chapter. If it is left blank doxygen will generate a standard footer.
+#
+# Note: Only use a user-defined footer if you know what you are doing!
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_FOOTER           =
+
+# The LATEX_EXTRA_FILES tag can be used to specify one or more extra images or
+# other source files which should be copied to the LATEX_OUTPUT output
+# directory. Note that the files will be copied as-is; there are no commands or
+# markers available.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_EXTRA_FILES      =
+
+# If the PDF_HYPERLINKS tag is set to YES, the LaTeX that is generated is
+# prepared for conversion to PDF (using ps2pdf or pdflatex). The PDF file will
+# contain links (just like the HTML output) instead of page references. This
+# makes the output suitable for online browsing using a PDF viewer.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+PDF_HYPERLINKS         = YES
+
+# If the LATEX_PDFLATEX tag is set to YES, doxygen will use pdflatex to generate
+# the PDF file directly from the LaTeX files. Set this option to YES to get a
+# higher quality PDF documentation.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+USE_PDFLATEX           = YES
+
+# If the LATEX_BATCHMODE tag is set to YES, doxygen will add the \batchmode
+# command to the generated LaTeX files. This will instruct LaTeX to keep running
+# if errors occur, instead of asking the user for help. This option is also used
+# when generating formulas in HTML.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_BATCHMODE        = NO
+
+# If the LATEX_HIDE_INDICES tag is set to YES then doxygen will not include the
+# index chapters (such as File Index, Compound Index, etc.) in the output.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_HIDE_INDICES     = NO
+
+# If the LATEX_SOURCE_CODE tag is set to YES then doxygen will include source
+# code with syntax highlighting in the LaTeX output.
+#
+# Note that which sources are shown also depends on other settings such as
+# SOURCE_BROWSER.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_SOURCE_CODE      = NO
+
+# The LATEX_BIB_STYLE tag can be used to specify the style to use for the
+# bibliography, e.g. plainnat, or ieeetr. See
+# http://en.wikipedia.org/wiki/BibTeX and \cite for more info.
+# The default value is: plain.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_BIB_STYLE        = plain
+
+#---------------------------------------------------------------------------
+# Configuration options related to the RTF output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_RTF tag is set to YES doxygen will generate RTF output. The
+# RTF output is optimized for Word 97 and may not look too pretty with other RTF
+# readers/editors.
+# The default value is: NO.
+
+GENERATE_RTF           = NO
+
+# The RTF_OUTPUT tag is used to specify where the RTF docs will be put. If a
+# relative path is entered the value of OUTPUT_DIRECTORY will be put in front of
+# it.
+# The default directory is: rtf.
+# This tag requires that the tag GENERATE_RTF is set to YES.
+
+RTF_OUTPUT             = rtf
+
+# If the COMPACT_RTF tag is set to YES doxygen generates more compact RTF
+# documents. This may be useful for small projects and may help to save some
+# trees in general.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_RTF is set to YES.
+
+COMPACT_RTF            = NO
+
+# If the RTF_HYPERLINKS tag is set to YES, the RTF that is generated will
+# contain hyperlink fields. The RTF file will contain links (just like the HTML
+# output) instead of page references. This makes the output suitable for online
+# browsing using Word or some other Word compatible readers that support those
+# fields.
+#
+# Note: WordPad (write) and others do not support links.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_RTF is set to YES.
+
+RTF_HYPERLINKS         = NO
+
+# Load stylesheet definitions from file. Syntax is similar to doxygen's config
+# file, i.e. a series of assignments. You only have to provide replacements,
+# missing definitions are set to their default value.
+#
+# See also section "Doxygen usage" for information on how to generate the
+# default style sheet that doxygen normally uses.
+# This tag requires that the tag GENERATE_RTF is set to YES.
+
+RTF_STYLESHEET_FILE    =
+
+# Set optional variables used in the generation of an RTF document. Syntax is
+# similar to doxygen's config file. A template extensions file can be generated
+# using doxygen -e rtf extensionFile.
+# This tag requires that the tag GENERATE_RTF is set to YES.
+
+RTF_EXTENSIONS_FILE    =
+
+#---------------------------------------------------------------------------
+# Configuration options related to the man page output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_MAN tag is set to YES doxygen will generate man pages for
+# classes and files.
+# The default value is: NO.
+
+GENERATE_MAN           = NO
+
+# The MAN_OUTPUT tag is used to specify where the man pages will be put. If a
+# relative path is entered the value of OUTPUT_DIRECTORY will be put in front of
+# it. A directory man3 will be created inside the directory specified by
+# MAN_OUTPUT.
+# The default directory is: man.
+# This tag requires that the tag GENERATE_MAN is set to YES.
+
+MAN_OUTPUT             = man
+
+# The MAN_EXTENSION tag determines the extension that is added to the generated
+# man pages. In case the manual section does not start with a number, the number
+# 3 is prepended. The dot (.) at the beginning of the MAN_EXTENSION tag is
+# optional.
+# The default value is: .3.
+# This tag requires that the tag GENERATE_MAN is set to YES.
+
+MAN_EXTENSION          = .3
+
+# If the MAN_LINKS tag is set to YES and doxygen generates man output, then it
+# will generate one additional man file for each entity documented in the real
+# man page(s). These additional files only source the real man page, but without
+# them the man command would be unable to find the correct page.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_MAN is set to YES.
+
+MAN_LINKS              = NO
+
+#---------------------------------------------------------------------------
+# Configuration options related to the XML output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_XML tag is set to YES doxygen will generate an XML file that
+# captures the structure of the code including all documentation.
+# The default value is: NO.
+
+GENERATE_XML           = NO
+
+# The XML_OUTPUT tag is used to specify where the XML pages will be put. If a
+# relative path is entered the value of OUTPUT_DIRECTORY will be put in front of
+# it.
+# The default directory is: xml.
+# This tag requires that the tag GENERATE_XML is set to YES.
+
+XML_OUTPUT             = xml
+
+# The XML_SCHEMA tag can be used to specify a XML schema, which can be used by a
+# validating XML parser to check the syntax of the XML files.
+# This tag requires that the tag GENERATE_XML is set to YES.
+
+XML_SCHEMA             =
+
+# The XML_DTD tag can be used to specify a XML DTD, which can be used by a
+# validating XML parser to check the syntax of the XML files.
+# This tag requires that the tag GENERATE_XML is set to YES.
+
+XML_DTD                =
+
+# If the XML_PROGRAMLISTING tag is set to YES doxygen will dump the program
+# listings (including syntax highlighting and cross-referencing information) to
+# the XML output. Note that enabling this will significantly increase the size
+# of the XML output.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_XML is set to YES.
+
+XML_PROGRAMLISTING     = YES
+
+#---------------------------------------------------------------------------
+# Configuration options related to the DOCBOOK output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_DOCBOOK tag is set to YES doxygen will generate Docbook files
+# that can be used to generate PDF.
+# The default value is: NO.
+
+GENERATE_DOCBOOK       = NO
+
+# The DOCBOOK_OUTPUT tag is used to specify where the Docbook pages will be put.
+# If a relative path is entered the value of OUTPUT_DIRECTORY will be put in
+# front of it.
+# The default directory is: docbook.
+# This tag requires that the tag GENERATE_DOCBOOK is set to YES.
+
+DOCBOOK_OUTPUT         = docbook
+
+#---------------------------------------------------------------------------
+# Configuration options for the AutoGen Definitions output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_AUTOGEN_DEF tag is set to YES doxygen will generate an AutoGen
+# Definitions (see http://autogen.sf.net) file that captures the structure of
+# the code including all documentation. Note that this feature is still
+# experimental and incomplete at the moment.
+# The default value is: NO.
+
+GENERATE_AUTOGEN_DEF   = NO
+
+#---------------------------------------------------------------------------
+# Configuration options related to the Perl module output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_PERLMOD tag is set to YES doxygen will generate a Perl module
+# file that captures the structure of the code including all documentation.
+#
+# Note that this feature is still experimental and incomplete at the moment.
+# The default value is: NO.
+
+GENERATE_PERLMOD       = NO
+
+# If the PERLMOD_LATEX tag is set to YES doxygen will generate the necessary
+# Makefile rules, Perl scripts and LaTeX code to be able to generate PDF and DVI
+# output from the Perl module output.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_PERLMOD is set to YES.
+
+PERLMOD_LATEX          = NO
+
+# If the PERLMOD_PRETTY tag is set to YES the Perl module output will be nicely
+# formatted so it can be parsed by a human reader. This is useful if you want to
+# understand what is going on. On the other hand, if this tag is set to NO the
+# size of the Perl module output will be much smaller and Perl will parse it
+# just the same.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_PERLMOD is set to YES.
+
+PERLMOD_PRETTY         = YES
+
+# The names of the make variables in the generated doxyrules.make file are
+# prefixed with the string contained in PERLMOD_MAKEVAR_PREFIX. This is useful
+# so different doxyrules.make files included by the same Makefile don't
+# overwrite each other's variables.
+# This tag requires that the tag GENERATE_PERLMOD is set to YES.
+
+PERLMOD_MAKEVAR_PREFIX =
+
+#---------------------------------------------------------------------------
+# Configuration options related to the preprocessor
+#---------------------------------------------------------------------------
+
+# If the ENABLE_PREPROCESSING tag is set to YES doxygen will evaluate all
+# C-preprocessor directives found in the sources and include files.
+# The default value is: YES.
+
+ENABLE_PREPROCESSING   = YES
+
+# If the MACRO_EXPANSION tag is set to YES doxygen will expand all macro names
+# in the source code. If set to NO only conditional compilation will be
+# performed. Macro expansion can be done in a controlled way by setting
+# EXPAND_ONLY_PREDEF to YES.
+# The default value is: NO.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+MACRO_EXPANSION        = NO
+
+# If the EXPAND_ONLY_PREDEF and MACRO_EXPANSION tags are both set to YES then
+# the macro expansion is limited to the macros specified with the PREDEFINED and
+# EXPAND_AS_DEFINED tags.
+# The default value is: NO.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+EXPAND_ONLY_PREDEF     = NO
+
+# If the SEARCH_INCLUDES tag is set to YES the includes files in the
+# INCLUDE_PATH will be searched if a #include is found.
+# The default value is: YES.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+SEARCH_INCLUDES        = YES
+
+# The INCLUDE_PATH tag can be used to specify one or more directories that
+# contain include files that are not input files but should be processed by the
+# preprocessor.
+# This tag requires that the tag SEARCH_INCLUDES is set to YES.
+
+INCLUDE_PATH           =
+
+# You can use the INCLUDE_FILE_PATTERNS tag to specify one or more wildcard
+# patterns (like *.h and *.hpp) to filter out the header-files in the
+# directories. If left blank, the patterns specified with FILE_PATTERNS will be
+# used.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+INCLUDE_FILE_PATTERNS  =
+
+# The PREDEFINED tag can be used to specify one or more macro names that are
+# defined before the preprocessor is started (similar to the -D option of e.g.
+# gcc). The argument of the tag is a list of macros of the form: name or
+# name=definition (no spaces). If the definition and the "=" are omitted, "=1"
+# is assumed. To prevent a macro definition from being undefined via #undef or
+# recursively expanded use the := operator instead of the = operator.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+PREDEFINED             =
+
+# If the MACRO_EXPANSION and EXPAND_ONLY_PREDEF tags are set to YES then this
+# tag can be used to specify a list of macro names that should be expanded. The
+# macro definition that is found in the sources will be used. Use the PREDEFINED
+# tag if you want to use a different macro definition that overrules the
+# definition found in the source code.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+EXPAND_AS_DEFINED      =
+
+# If the SKIP_FUNCTION_MACROS tag is set to YES then doxygen's preprocessor will
+# remove all refrences to function-like macros that are alone on a line, have an
+# all uppercase name, and do not end with a semicolon. Such function macros are
+# typically used for boiler-plate code, and will confuse the parser if not
+# removed.
+# The default value is: YES.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+SKIP_FUNCTION_MACROS   = YES
+
+#---------------------------------------------------------------------------
+# Configuration options related to external references
+#---------------------------------------------------------------------------
+
+# The TAGFILES tag can be used to specify one or more tag files. For each tag
+# file the location of the external documentation should be added. The format of
+# a tag file without this location is as follows:
+# TAGFILES = file1 file2 ...
+# Adding location for the tag files is done as follows:
+# TAGFILES = file1=loc1 "file2 = loc2" ...
+# where loc1 and loc2 can be relative or absolute paths or URLs. See the
+# section "Linking to external documentation" for more information about the use
+# of tag files.
+# Note: Each tag file must have an unique name (where the name does NOT include
+# the path). If a tag file is not located in the directory in which doxygen is
+# run, you must also specify the path to the tagfile here.
+
+TAGFILES               =
+
+# When a file name is specified after GENERATE_TAGFILE, doxygen will create a
+# tag file that is based on the input files it reads. See section "Linking to
+# external documentation" for more information about the usage of tag files.
+
+GENERATE_TAGFILE       =
+
+# If the ALLEXTERNALS tag is set to YES all external class will be listed in the
+# class index. If set to NO only the inherited external classes will be listed.
+# The default value is: NO.
+
+ALLEXTERNALS           = NO
+
+# If the EXTERNAL_GROUPS tag is set to YES all external groups will be listed in
+# the modules index. If set to NO, only the current project's groups will be
+# listed.
+# The default value is: YES.
+
+EXTERNAL_GROUPS        = YES
+
+# If the EXTERNAL_PAGES tag is set to YES all external pages will be listed in
+# the related pages index. If set to NO, only the current project's pages will
+# be listed.
+# The default value is: YES.
+
+EXTERNAL_PAGES         = YES
+
+# The PERL_PATH should be the absolute path and name of the perl script
+# interpreter (i.e. the result of 'which perl').
+# The default file (with absolute path) is: /usr/bin/perl.
+
+PERL_PATH              = /usr/bin/perl
+
+#---------------------------------------------------------------------------
+# Configuration options related to the dot tool
+#---------------------------------------------------------------------------
+
+# If the CLASS_DIAGRAMS tag is set to YES doxygen will generate a class diagram
+# (in HTML and LaTeX) for classes with base or super classes. Setting the tag to
+# NO turns the diagrams off. Note that this option also works with HAVE_DOT
+# disabled, but it is recommended to install and use dot, since it yields more
+# powerful graphs.
+# The default value is: YES.
+
+CLASS_DIAGRAMS         = YES
+
+# You can define message sequence charts within doxygen comments using the \msc
+# command. Doxygen will then run the mscgen tool (see:
+# http://www.mcternan.me.uk/mscgen/)) to produce the chart and insert it in the
+# documentation. The MSCGEN_PATH tag allows you to specify the directory where
+# the mscgen tool resides. If left empty the tool is assumed to be found in the
+# default search path.
+
+MSCGEN_PATH            =
+
+# You can include diagrams made with dia in doxygen documentation. Doxygen will
+# then run dia to produce the diagram and insert it in the documentation. The
+# DIA_PATH tag allows you to specify the directory where the dia binary resides.
+# If left empty dia is assumed to be found in the default search path.
+
+DIA_PATH               =
+
+# If set to YES, the inheritance and collaboration graphs will hide inheritance
+# and usage relations if the target is undocumented or is not a class.
+# The default value is: YES.
+
+HIDE_UNDOC_RELATIONS   = YES
+
+# If you set the HAVE_DOT tag to YES then doxygen will assume the dot tool is
+# available from the path. This tool is part of Graphviz (see:
+# http://www.graphviz.org/), a graph visualization toolkit from AT&T and Lucent
+# Bell Labs. The other options in this section have no effect if this option is
+# set to NO
+# The default value is: NO.
+
+HAVE_DOT               = NO
+
+# The DOT_NUM_THREADS specifies the number of dot invocations doxygen is allowed
+# to run in parallel. When set to 0 doxygen will base this on the number of
+# processors available in the system. You can set it explicitly to a value
+# larger than 0 to get control over the balance between CPU load and processing
+# speed.
+# Minimum value: 0, maximum value: 32, default value: 0.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_NUM_THREADS        = 0
+
+# When you want a differently looking font n the dot files that doxygen
+# generates you can specify the font name using DOT_FONTNAME. You need to make
+# sure dot is able to find the font, which can be done by putting it in a
+# standard location or by setting the DOTFONTPATH environment variable or by
+# setting DOT_FONTPATH to the directory containing the font.
+# The default value is: Helvetica.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_FONTNAME           = Helvetica
+
+# The DOT_FONTSIZE tag can be used to set the size (in points) of the font of
+# dot graphs.
+# Minimum value: 4, maximum value: 24, default value: 10.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_FONTSIZE           = 10
+
+# By default doxygen will tell dot to use the default font as specified with
+# DOT_FONTNAME. If you specify a different font using DOT_FONTNAME you can set
+# the path where dot can find it using this tag.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_FONTPATH           =
+
+# If the CLASS_GRAPH tag is set to YES then doxygen will generate a graph for
+# each documented class showing the direct and indirect inheritance relations.
+# Setting this tag to YES will force the CLASS_DIAGRAMS tag to NO.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+CLASS_GRAPH            = YES
+
+# If the COLLABORATION_GRAPH tag is set to YES then doxygen will generate a
+# graph for each documented class showing the direct and indirect implementation
+# dependencies (inheritance, containment, and class references variables) of the
+# class with other documented classes.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+COLLABORATION_GRAPH    = YES
+
+# If the GROUP_GRAPHS tag is set to YES then doxygen will generate a graph for
+# groups, showing the direct groups dependencies.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+GROUP_GRAPHS           = YES
+
+# If the UML_LOOK tag is set to YES doxygen will generate inheritance and
+# collaboration diagrams in a style similar to the OMG's Unified Modeling
+# Language.
+# The default value is: NO.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+UML_LOOK               = NO
+
+# If the UML_LOOK tag is enabled, the fields and methods are shown inside the
+# class node. If there are many fields or methods and many nodes the graph may
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+#
+# Note that this requires a modern browser other than Internet Explorer. Tested
+# and working are Firefox, Chrome, Safari, and Opera.
+# Note: For IE 9+ you need to set HTML_FILE_EXTENSION to xhtml in order to make
+# the SVG files visible. Older versions of IE do not have SVG support.
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+# root by following a path via at most 3 edges will be shown. Nodes that lay
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+# badly anti-aliased labels on the edges of a graph (i.e. they become hard to
+# read).
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+# explaining the meaning of the various boxes and arrows in the dot generated
+# graphs.
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diff --git a/media/libaaudio/README.md b/media/libaaudio/README.md
new file mode 100644
index 0000000..0c9050e
--- /dev/null
+++ b/media/libaaudio/README.md
@@ -0,0 +1,3 @@
+AAudio input/output API
+
+To generate Doxygen output, run command "doxygen" in this directory.
diff --git a/media/libaaudio/examples/Android.mk b/media/libaaudio/examples/Android.mk
new file mode 100644
index 0000000..5053e7d
--- /dev/null
+++ b/media/libaaudio/examples/Android.mk
@@ -0,0 +1 @@
+include $(call all-subdir-makefiles)
diff --git a/media/libaaudio/examples/write_sine/Android.mk b/media/libaaudio/examples/write_sine/Android.mk
new file mode 100644
index 0000000..b56328b
--- /dev/null
+++ b/media/libaaudio/examples/write_sine/Android.mk
@@ -0,0 +1,6 @@
+# include $(call all-subdir-makefiles)
+
+# Just include static/ for now.
+LOCAL_PATH := $(call my-dir)
+#include $(LOCAL_PATH)/jni/Android.mk
+include $(LOCAL_PATH)/static/Android.mk
diff --git a/media/libaaudio/examples/write_sine/README.md b/media/libaaudio/examples/write_sine/README.md
new file mode 100644
index 0000000..b150471
--- /dev/null
+++ b/media/libaaudio/examples/write_sine/README.md
@@ -0,0 +1,7 @@
+# cd to this directory
+mkdir -p jni/include/aaudio
+ln -s $PLATFORM/frameworks/av/media/liboboe/include/aaudio/*.h jni/include/aaudio
+ln -s $PLATFORM/out/target/product/$TARGET_PRODUCT/symbols/out/soong/ndk/platforms/android-current/arch-arm64/usr/lib/liboboe.so jni
+$NDK/ndk-build
+adb push libs/arm64-v8a/write_sine_threaded /data
+adb shell /data/write_sine_threaded
diff --git a/media/libaaudio/examples/write_sine/jni/Android.mk b/media/libaaudio/examples/write_sine/jni/Android.mk
new file mode 100644
index 0000000..51a5a85
--- /dev/null
+++ b/media/libaaudio/examples/write_sine/jni/Android.mk
@@ -0,0 +1,35 @@
+LOCAL_PATH := $(call my-dir)
+
+include $(CLEAR_VARS)
+LOCAL_MODULE_TAGS := tests
+LOCAL_C_INCLUDES := \
+    $(call include-path-for, audio-utils) \
+    frameworks/av/media/liboboe/include
+
+LOCAL_SRC_FILES:= frameworks/av/media/liboboe/src/write_sine.cpp
+LOCAL_SHARED_LIBRARIES := libaudioutils libmedia libtinyalsa \
+        libbinder libcutils libutils
+LOCAL_STATIC_LIBRARIES := libsndfile
+LOCAL_MODULE := write_sine_ndk
+LOCAL_SHARED_LIBRARIES += liboboe_prebuilt
+include $(BUILD_EXECUTABLE)
+
+include $(CLEAR_VARS)
+LOCAL_MODULE_TAGS := tests
+LOCAL_C_INCLUDES := \
+    $(call include-path-for, audio-utils) \
+    frameworks/av/media/liboboe/include
+
+LOCAL_SRC_FILES:= frameworks/av/media/liboboe/src/write_sine_threaded.cpp
+LOCAL_SHARED_LIBRARIES := libaudioutils libmedia libtinyalsa \
+        libbinder libcutils libutils
+LOCAL_STATIC_LIBRARIES := libsndfile
+LOCAL_MODULE := write_sine_threaded_ndk
+LOCAL_SHARED_LIBRARIES += liboboe_prebuilt
+include $(BUILD_EXECUTABLE)
+
+include $(CLEAR_VARS)
+LOCAL_MODULE := liboboe_prebuilt
+LOCAL_SRC_FILES := liboboe.so
+LOCAL_EXPORT_C_INCLUDES := $(LOCAL_PATH)/include
+include $(PREBUILT_SHARED_LIBRARY)
diff --git a/media/libaaudio/examples/write_sine/jni/Application.mk b/media/libaaudio/examples/write_sine/jni/Application.mk
new file mode 100644
index 0000000..e74475c
--- /dev/null
+++ b/media/libaaudio/examples/write_sine/jni/Application.mk
@@ -0,0 +1,3 @@
+# TODO remove then when we support other architectures
+APP_ABI := arm64-v8a
+APP_CPPFLAGS += -std=c++11
diff --git a/media/libaaudio/examples/write_sine/src/SineGenerator.h b/media/libaaudio/examples/write_sine/src/SineGenerator.h
new file mode 100644
index 0000000..ade7527
--- /dev/null
+++ b/media/libaaudio/examples/write_sine/src/SineGenerator.h
@@ -0,0 +1,95 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef SINE_GENERATOR_H
+#define SINE_GENERATOR_H
+
+#include <math.h>
+
+class SineGenerator
+{
+public:
+    SineGenerator() {}
+    virtual ~SineGenerator() = default;
+
+    void setup(double frequency, double frameRate) {
+        mFrameRate = frameRate;
+        mPhaseIncrement = frequency * M_PI * 2 / frameRate;
+    }
+
+    void setSweep(double frequencyLow, double frequencyHigh, double seconds) {
+        mPhaseIncrementLow = frequencyLow * M_PI * 2 / mFrameRate;
+        mPhaseIncrementHigh = frequencyHigh * M_PI * 2 / mFrameRate;
+
+        double numFrames = seconds * mFrameRate;
+        mUpScaler = pow((frequencyHigh / frequencyLow), (1.0 / numFrames));
+        mDownScaler = 1.0 / mUpScaler;
+        mGoingUp = true;
+        mSweeping = true;
+    }
+
+    void render(int16_t *buffer, int32_t channelStride, int32_t numFrames) {
+        int sampleIndex = 0;
+        for (int i = 0; i < numFrames; i++) {
+            buffer[sampleIndex] = (int16_t) (32767 * sin(mPhase) * mAmplitude);
+            sampleIndex += channelStride;
+            advancePhase();
+        }
+    }
+    void render(float *buffer, int32_t channelStride, int32_t numFrames) {
+        int sampleIndex = 0;
+        for (int i = 0; i < numFrames; i++) {
+            buffer[sampleIndex] = sin(mPhase) * mAmplitude;
+            sampleIndex += channelStride;
+            advancePhase();
+        }
+    }
+
+private:
+    void advancePhase() {
+        mPhase += mPhaseIncrement;
+        if (mPhase > M_PI * 2) {
+            mPhase -= M_PI * 2;
+        }
+        if (mSweeping) {
+            if (mGoingUp) {
+                mPhaseIncrement *= mUpScaler;
+                if (mPhaseIncrement > mPhaseIncrementHigh) {
+                    mGoingUp = false;
+                }
+            } else {
+                mPhaseIncrement *= mDownScaler;
+                if (mPhaseIncrement < mPhaseIncrementLow) {
+                    mGoingUp = true;
+                }
+            }
+        }
+    }
+
+    double mAmplitude = 0.01;
+    double mPhase = 0.0;
+    double mPhaseIncrement = 440 * M_PI * 2 / 48000;
+    double mFrameRate = 48000;
+    double mPhaseIncrementLow;
+    double mPhaseIncrementHigh;
+    double mUpScaler = 1.0;
+    double mDownScaler = 1.0;
+    bool   mGoingUp = false;
+    bool   mSweeping = false;
+};
+
+#endif /* SINE_GENERATOR_H */
+
diff --git a/media/libaaudio/examples/write_sine/src/write_sine.cpp b/media/libaaudio/examples/write_sine/src/write_sine.cpp
new file mode 100644
index 0000000..511fe94
--- /dev/null
+++ b/media/libaaudio/examples/write_sine/src/write_sine.cpp
@@ -0,0 +1,187 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// Play sine waves using AAudio.
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+#include <aaudio/AAudioDefinitions.h>
+#include <aaudio/AAudio.h>
+#include "SineGenerator.h"
+
+#define SAMPLE_RATE   48000
+#define NUM_SECONDS   10
+#define NANOS_PER_MICROSECOND ((int64_t)1000)
+#define NANOS_PER_MILLISECOND (NANOS_PER_MICROSECOND * 1000)
+
+static const char *getSharingModeText(aaudio_sharing_mode_t mode) {
+    const char *modeText = "unknown";
+    switch (mode) {
+    case AAUDIO_SHARING_MODE_EXCLUSIVE:
+        modeText = "EXCLUSIVE";
+        break;
+    case AAUDIO_SHARING_MODE_SHARED:
+        modeText = "SHARED";
+        break;
+    default:
+        break;
+    }
+    return modeText;
+}
+
+int main(int argc, char **argv)
+{
+    (void)argc; // unused
+
+    aaudio_result_t result = AAUDIO_OK;
+
+    const int requestedSamplesPerFrame = 2;
+    int actualSamplesPerFrame = 0;
+    const int requestedSampleRate = SAMPLE_RATE;
+    int actualSampleRate = 0;
+    const aaudio_audio_format_t requestedDataFormat = AAUDIO_FORMAT_PCM_I16;
+    aaudio_audio_format_t actualDataFormat = AAUDIO_FORMAT_PCM_I16;
+
+    const aaudio_sharing_mode_t requestedSharingMode = AAUDIO_SHARING_MODE_EXCLUSIVE;
+    aaudio_sharing_mode_t actualSharingMode = AAUDIO_SHARING_MODE_SHARED;
+
+    AAudioStreamBuilder *aaudioBuilder = nullptr;
+    AAudioStream *aaudioStream = nullptr;
+    aaudio_stream_state_t state = AAUDIO_STREAM_STATE_UNINITIALIZED;
+    int32_t framesPerBurst = 0;
+    int32_t framesToPlay = 0;
+    int32_t framesLeft = 0;
+    int32_t xRunCount = 0;
+    int16_t *data = nullptr;
+
+    SineGenerator sineOsc1;
+    SineGenerator sineOsc2;
+
+    // Make printf print immediately so that debug info is not stuck
+    // in a buffer if we hang or crash.
+    setvbuf(stdout, nullptr, _IONBF, (size_t) 0);
+
+    printf("%s - Play a sine wave using AAudio\n", argv[0]);
+
+    // Use an AAudioStreamBuilder to contain requested parameters.
+    result = AAudio_createStreamBuilder(&aaudioBuilder);
+    if (result != AAUDIO_OK) {
+        goto finish;
+    }
+
+    // Request stream properties.
+    AAudioStreamBuilder_setSampleRate(aaudioBuilder, requestedSampleRate);
+    AAudioStreamBuilder_setSamplesPerFrame(aaudioBuilder, requestedSamplesPerFrame);
+    AAudioStreamBuilder_setFormat(aaudioBuilder, requestedDataFormat);
+    AAudioStreamBuilder_setSharingMode(aaudioBuilder, requestedSharingMode);
+
+
+    // Create an AAudioStream using the Builder.
+    result = AAudioStreamBuilder_openStream(aaudioBuilder, &aaudioStream);
+    if (result != AAUDIO_OK) {
+        goto finish;
+    }
+
+    state = AAudioStream_getState(aaudioStream);
+    printf("after open, state = %s\n", AAudio_convertStreamStateToText(state));
+
+    // Check to see what kind of stream we actually got.
+    actualSampleRate = AAudioStream_getSampleRate(aaudioStream);
+    printf("SampleRate: requested = %d, actual = %d\n", requestedSampleRate, actualSampleRate);
+
+    sineOsc1.setup(440.0, actualSampleRate);
+    sineOsc2.setup(660.0, actualSampleRate);
+
+    actualSamplesPerFrame = AAudioStream_getSamplesPerFrame(aaudioStream);
+    printf("SamplesPerFrame: requested = %d, actual = %d\n",
+            requestedSamplesPerFrame, actualSamplesPerFrame);
+
+    actualSharingMode = AAudioStream_getSharingMode(aaudioStream);
+    printf("SharingMode: requested = %s, actual = %s\n",
+            getSharingModeText(requestedSharingMode),
+            getSharingModeText(actualSharingMode));
+
+    // This is the number of frames that are read in one chunk by a DMA controller
+    // or a DSP or a mixer.
+    framesPerBurst = AAudioStream_getFramesPerBurst(aaudioStream);
+    printf("DataFormat: original framesPerBurst = %d\n",framesPerBurst);
+
+    // Some DMA might use very short bursts of 16 frames. We don't need to write such small
+    // buffers. But it helps to use a multiple of the burst size for predictable scheduling.
+    while (framesPerBurst < 48) {
+        framesPerBurst *= 2;
+    }
+    printf("DataFormat: final framesPerBurst = %d\n",framesPerBurst);
+
+    actualDataFormat = AAudioStream_getFormat(aaudioStream);
+    printf("DataFormat: requested = %d, actual = %d\n", requestedDataFormat, actualDataFormat);
+    // TODO handle other data formats
+
+    // Allocate a buffer for the audio data.
+    data = new int16_t[framesPerBurst * actualSamplesPerFrame];
+    if (data == nullptr) {
+        fprintf(stderr, "ERROR - could not allocate data buffer\n");
+        result = AAUDIO_ERROR_NO_MEMORY;
+        goto finish;
+    }
+
+    // Start the stream.
+    printf("call AAudioStream_requestStart()\n");
+    result = AAudioStream_requestStart(aaudioStream);
+    if (result != AAUDIO_OK) {
+        fprintf(stderr, "ERROR - AAudioStream_requestStart() returned %d\n", result);
+        goto finish;
+    }
+
+    state = AAudioStream_getState(aaudioStream);
+    printf("after start, state = %s\n", AAudio_convertStreamStateToText(state));
+
+    // Play for a while.
+    framesToPlay = actualSampleRate * NUM_SECONDS;
+    framesLeft = framesToPlay;
+    while (framesLeft > 0) {
+        // Render sine waves to left and right channels.
+        sineOsc1.render(&data[0], actualSamplesPerFrame, framesPerBurst);
+        if (actualSamplesPerFrame > 1) {
+            sineOsc2.render(&data[1], actualSamplesPerFrame, framesPerBurst);
+        }
+
+        // Write audio data to the stream.
+        int64_t timeoutNanos = 100 * NANOS_PER_MILLISECOND;
+        int minFrames = (framesToPlay < framesPerBurst) ? framesToPlay : framesPerBurst;
+        int actual = AAudioStream_write(aaudioStream, data, minFrames, timeoutNanos);
+        if (actual < 0) {
+            fprintf(stderr, "ERROR - AAudioStream_write() returned %zd\n", actual);
+            goto finish;
+        } else if (actual == 0) {
+            fprintf(stderr, "WARNING - AAudioStream_write() returned %zd\n", actual);
+            goto finish;
+        }
+        framesLeft -= actual;
+    }
+
+    xRunCount = AAudioStream_getXRunCount(aaudioStream);
+    printf("AAudioStream_getXRunCount %d\n", xRunCount);
+
+finish:
+    delete[] data;
+    AAudioStream_close(aaudioStream);
+    AAudioStreamBuilder_delete(aaudioBuilder);
+    printf("exiting - AAudio result = %d = %s\n", result, AAudio_convertResultToText(result));
+    return (result != AAUDIO_OK) ? EXIT_FAILURE : EXIT_SUCCESS;
+}
+
diff --git a/media/libaaudio/examples/write_sine/src/write_sine_threaded.cpp b/media/libaaudio/examples/write_sine/src/write_sine_threaded.cpp
new file mode 100644
index 0000000..40e5016
--- /dev/null
+++ b/media/libaaudio/examples/write_sine/src/write_sine_threaded.cpp
@@ -0,0 +1,318 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// Play sine waves using an AAudio background thread.
+
+#include <assert.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <math.h>
+#include <time.h>
+#include <aaudio/AAudioDefinitions.h>
+#include <aaudio/AAudio.h>
+#include "SineGenerator.h"
+
+#define NUM_SECONDS           10
+#define NANOS_PER_MICROSECOND ((int64_t)1000)
+#define NANOS_PER_MILLISECOND (NANOS_PER_MICROSECOND * 1000)
+#define MILLIS_PER_SECOND     1000
+#define NANOS_PER_SECOND      (NANOS_PER_MILLISECOND * MILLIS_PER_SECOND)
+
+//#define SHARING_MODE  AAUDIO_SHARING_MODE_EXCLUSIVE
+#define SHARING_MODE  AAUDIO_SHARING_MODE_SHARED
+
+// Prototype for a callback.
+typedef int audio_callback_proc_t(float *outputBuffer,
+                                     int32_t numFrames,
+                                     void *userContext);
+
+static void *SimpleAAudioPlayerThreadProc(void *arg);
+
+/**
+ * Simple wrapper for AAudio that opens a default stream and then calls
+ * a callback function to fill the output buffers.
+ */
+class SimpleAAudioPlayer {
+public:
+    SimpleAAudioPlayer() {}
+    virtual ~SimpleAAudioPlayer() {
+        close();
+    };
+
+    void setSharingMode(aaudio_sharing_mode_t requestedSharingMode) {
+        mRequestedSharingMode = requestedSharingMode;
+    }
+
+    /** Also known as "sample rate"
+     */
+    int32_t getFramesPerSecond() {
+        return mFramesPerSecond;
+    }
+
+    int32_t getSamplesPerFrame() {
+        return mSamplesPerFrame;
+    }
+
+    /**
+     * Open a stream
+     */
+    aaudio_result_t open(audio_callback_proc_t *proc, void *userContext) {
+        mCallbackProc = proc;
+        mUserContext = userContext;
+        aaudio_result_t result = AAUDIO_OK;
+
+        // Use an AAudioStreamBuilder to contain requested parameters.
+        result = AAudio_createStreamBuilder(&mBuilder);
+        if (result != AAUDIO_OK) return result;
+
+        AAudioStreamBuilder_setSharingMode(mBuilder, mRequestedSharingMode);
+
+        // Open an AAudioStream using the Builder.
+        result = AAudioStreamBuilder_openStream(mBuilder, &mStream);
+        if (result != AAUDIO_OK) goto finish1;
+
+        // Check to see what kind of stream we actually got.
+        mFramesPerSecond = AAudioStream_getSampleRate(mStream);
+        printf("open() mFramesPerSecond = %d\n", mFramesPerSecond);
+
+        mSamplesPerFrame = AAudioStream_getSamplesPerFrame(mStream);
+        printf("open() mSamplesPerFrame = %d\n", mSamplesPerFrame);
+
+        {
+            int32_t bufferCapacity = AAudioStream_getBufferCapacityInFrames(mStream);
+            printf("open() got bufferCapacity = %d\n", bufferCapacity);
+        }
+
+        // This is the number of frames that are read in one chunk by a DMA controller
+        // or a DSP or a mixer.
+        mFramesPerBurst = AAudioStream_getFramesPerBurst(mStream);
+        // Some DMA might use very short bursts. We don't need to write such small
+        // buffers. But it helps to use a multiple of the burst size for predictable scheduling.
+        while (mFramesPerBurst < 48) {
+            mFramesPerBurst *= 2;
+        }
+        printf("DataFormat: final framesPerBurst = %d\n",mFramesPerBurst);
+
+        mDataFormat = AAudioStream_getFormat(mStream);
+
+        // Allocate a buffer for the audio data.
+        mOutputBuffer = new float[mFramesPerBurst * mSamplesPerFrame];
+        if (mOutputBuffer == nullptr) {
+            fprintf(stderr, "ERROR - could not allocate data buffer\n");
+            result = AAUDIO_ERROR_NO_MEMORY;
+        }
+
+        // If needed allocate a buffer for converting float to int16_t.
+        if (mDataFormat == AAUDIO_FORMAT_PCM_I16) {
+            mConversionBuffer = new int16_t[mFramesPerBurst * mSamplesPerFrame];
+            if (mConversionBuffer == nullptr) {
+                fprintf(stderr, "ERROR - could not allocate conversion buffer\n");
+                result = AAUDIO_ERROR_NO_MEMORY;
+            }
+        }
+        return result;
+
+     finish1:
+        AAudioStreamBuilder_delete(mBuilder);
+        mBuilder = nullptr;
+        return result;
+    }
+
+    aaudio_result_t close() {
+        if (mStream != nullptr) {
+            stop();
+            printf("call AAudioStream_close(%p)\n", mStream);  fflush(stdout);
+            AAudioStream_close(mStream);
+            mStream = nullptr;
+            AAudioStreamBuilder_delete(mBuilder);
+            mBuilder = nullptr;
+            delete mOutputBuffer;
+            mOutputBuffer = nullptr;
+            delete mConversionBuffer;
+            mConversionBuffer = nullptr;
+        }
+        return AAUDIO_OK;
+    }
+
+    // Start a thread that will call the callback proc.
+    aaudio_result_t start() {
+        mEnabled = true;
+        int64_t nanosPerBurst = mFramesPerBurst * NANOS_PER_SECOND
+                                           / mFramesPerSecond;
+        return AAudioStream_createThread(mStream, nanosPerBurst,
+                                       SimpleAAudioPlayerThreadProc,
+                                       this);
+    }
+
+    // Tell the thread to stop.
+    aaudio_result_t stop() {
+        mEnabled = false;
+        return AAudioStream_joinThread(mStream, nullptr, 2 * NANOS_PER_SECOND);
+    }
+
+    aaudio_result_t callbackLoop() {
+        int32_t framesWritten = 0;
+        int32_t xRunCount = 0;
+        aaudio_result_t result = AAUDIO_OK;
+
+        result = AAudioStream_requestStart(mStream);
+        if (result != AAUDIO_OK) {
+            fprintf(stderr, "ERROR - AAudioStream_requestStart() returned %d\n", result);
+            return result;
+        }
+
+        // Give up after several burst periods have passed.
+        const int burstsPerTimeout = 8;
+        int64_t nanosPerTimeout =
+                        burstsPerTimeout * mFramesPerBurst * NANOS_PER_SECOND
+                        / mFramesPerSecond;
+
+        while (mEnabled && result >= 0) {
+            // Call application's callback function to fill the buffer.
+            if (mCallbackProc(mOutputBuffer, mFramesPerBurst, mUserContext)) {
+                mEnabled = false;
+            }
+            // if needed, convert from float to int16_t PCM
+            if (mConversionBuffer != nullptr) {
+                int32_t numSamples = mFramesPerBurst * mSamplesPerFrame;
+                for (int i = 0; i < numSamples; i++) {
+                    mConversionBuffer[i] = (int16_t)(32767.0 * mOutputBuffer[i]);
+                }
+                // Write the application data to stream.
+                result = AAudioStream_write(mStream, mConversionBuffer, mFramesPerBurst, nanosPerTimeout);
+            } else {
+                // Write the application data to stream.
+                result = AAudioStream_write(mStream, mOutputBuffer, mFramesPerBurst, nanosPerTimeout);
+            }
+            framesWritten += result;
+            if (result < 0) {
+                fprintf(stderr, "ERROR - AAudioStream_write() returned %zd\n", result);
+            }
+        }
+
+        xRunCount = AAudioStream_getXRunCount(mStream);
+        printf("AAudioStream_getXRunCount %d\n", xRunCount);
+
+        result = AAudioStream_requestStop(mStream);
+        if (result != AAUDIO_OK) {
+            fprintf(stderr, "ERROR - AAudioStream_requestStart() returned %d\n", result);
+            return result;
+        }
+
+        return result;
+    }
+
+private:
+    AAudioStreamBuilder  *mBuilder = nullptr;
+    AAudioStream         *mStream = nullptr;
+    float                *mOutputBuffer = nullptr;
+    int16_t              *mConversionBuffer = nullptr;
+
+    audio_callback_proc_t *mCallbackProc = nullptr;
+    void                 *mUserContext = nullptr;
+    aaudio_sharing_mode_t mRequestedSharingMode = SHARING_MODE;
+    int32_t               mSamplesPerFrame = 0;
+    int32_t               mFramesPerSecond = 0;
+    int32_t               mFramesPerBurst = 0;
+    aaudio_audio_format_t mDataFormat = AAUDIO_FORMAT_PCM_I16;
+
+    volatile bool         mEnabled = false; // used to request that callback exit its loop
+};
+
+static void *SimpleAAudioPlayerThreadProc(void *arg) {
+    SimpleAAudioPlayer *player = (SimpleAAudioPlayer *) arg;
+    player->callbackLoop();
+    return nullptr;
+}
+
+// Application data that gets passed to the callback.
+typedef struct SineThreadedData_s {
+    SineGenerator  sineOsc1;
+    SineGenerator  sineOsc2;
+    int32_t        samplesPerFrame = 0;
+} SineThreadedData_t;
+
+// Callback function that fills the audio output buffer.
+int MyCallbackProc(float *outputBuffer, int32_t numFrames, void *userContext) {
+    SineThreadedData_t *data = (SineThreadedData_t *) userContext;
+    // Render sine waves to left and right channels.
+    data->sineOsc1.render(&outputBuffer[0], data->samplesPerFrame, numFrames);
+    if (data->samplesPerFrame > 1) {
+        data->sineOsc2.render(&outputBuffer[1], data->samplesPerFrame, numFrames);
+    }
+    return 0;
+}
+
+int main(int argc, char **argv)
+{
+    (void)argc; // unused
+    SimpleAAudioPlayer player;
+    SineThreadedData_t myData;
+    aaudio_result_t result;
+
+    // Make printf print immediately so that debug info is not stuck
+    // in a buffer if we hang or crash.
+    setvbuf(stdout, nullptr, _IONBF, (size_t) 0);
+    printf("%s - Play a sine wave using an AAudio Thread\n", argv[0]);
+
+    result = player.open(MyCallbackProc, &myData);
+    if (result != AAUDIO_OK) {
+        fprintf(stderr, "ERROR -  player.open() returned %d\n", result);
+        goto error;
+    }
+    printf("player.getFramesPerSecond() = %d\n", player.getFramesPerSecond());
+    printf("player.getSamplesPerFrame() = %d\n", player.getSamplesPerFrame());
+    myData.sineOsc1.setup(440.0, 48000);
+    myData.sineOsc1.setSweep(300.0, 600.0, 5.0);
+    myData.sineOsc2.setup(660.0, 48000);
+    myData.sineOsc2.setSweep(350.0, 900.0, 7.0);
+    myData.samplesPerFrame = player.getSamplesPerFrame();
+
+    result = player.start();
+    if (result != AAUDIO_OK) {
+        fprintf(stderr, "ERROR -  player.start() returned %d\n", result);
+        goto error;
+    }
+
+    printf("Sleep for %d seconds while audio plays in a background thread.\n", NUM_SECONDS);
+    {
+        // FIXME sleep is not an NDK API
+        // sleep(NUM_SECONDS);
+        const struct timespec request = { .tv_sec = NUM_SECONDS, .tv_nsec = 0 };
+        (void) clock_nanosleep(CLOCK_MONOTONIC, 0 /*flags*/, &request, NULL /*remain*/);
+    }
+    printf("Woke up now.\n");
+
+    result = player.stop();
+    if (result != AAUDIO_OK) {
+        fprintf(stderr, "ERROR -  player.stop() returned %d\n", result);
+        goto error;
+    }
+    result = player.close();
+    if (result != AAUDIO_OK) {
+        fprintf(stderr, "ERROR -  player.close() returned %d\n", result);
+        goto error;
+    }
+
+    printf("SUCCESS\n");
+    return EXIT_SUCCESS;
+error:
+    player.close();
+    printf("exiting - AAudio result = %d = %s\n", result, AAudio_convertResultToText(result));
+    return EXIT_FAILURE;
+}
+
diff --git a/media/libaaudio/examples/write_sine/static/Android.mk b/media/libaaudio/examples/write_sine/static/Android.mk
new file mode 100644
index 0000000..139b70a
--- /dev/null
+++ b/media/libaaudio/examples/write_sine/static/Android.mk
@@ -0,0 +1,34 @@
+LOCAL_PATH := $(call my-dir)
+
+include $(CLEAR_VARS)
+LOCAL_MODULE_TAGS := examples
+LOCAL_C_INCLUDES := \
+    $(call include-path-for, audio-utils) \
+    frameworks/av/media/libaaudio/include
+
+# TODO reorganize folders to avoid using ../
+LOCAL_SRC_FILES:= ../src/write_sine.cpp
+
+LOCAL_SHARED_LIBRARIES := libaudioutils libmedia \
+                          libbinder libcutils libutils \
+                          libaudioclient liblog libtinyalsa
+LOCAL_STATIC_LIBRARIES := libaaudio
+
+LOCAL_MODULE := write_sine
+include $(BUILD_EXECUTABLE)
+
+include $(CLEAR_VARS)
+LOCAL_MODULE_TAGS := tests
+LOCAL_C_INCLUDES := \
+    $(call include-path-for, audio-utils) \
+    frameworks/av/media/libaaudio/include
+
+LOCAL_SRC_FILES:= ../src/write_sine_threaded.cpp
+
+LOCAL_SHARED_LIBRARIES := libaudioutils libmedia \
+                          libbinder libcutils libutils \
+                          libaudioclient liblog libtinyalsa
+LOCAL_STATIC_LIBRARIES := libaaudio
+
+LOCAL_MODULE := write_sine_threaded
+include $(BUILD_EXECUTABLE)
diff --git a/media/libaaudio/examples/write_sine/static/README.md b/media/libaaudio/examples/write_sine/static/README.md
new file mode 100644
index 0000000..6e26d7b
--- /dev/null
+++ b/media/libaaudio/examples/write_sine/static/README.md
@@ -0,0 +1,2 @@
+Makefile for building simple command line examples.
+They link with AAudio as a static library.
diff --git a/media/libaaudio/include/aaudio/AAudio.h b/media/libaaudio/include/aaudio/AAudio.h
new file mode 100644
index 0000000..921248a
--- /dev/null
+++ b/media/libaaudio/include/aaudio/AAudio.h
@@ -0,0 +1,527 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * This is the 'C' ABI for AAudio.
+ */
+#ifndef AAUDIO_AAUDIO_H
+#define AAUDIO_AAUDIO_H
+
+#include <time.h>
+#include "AAudioDefinitions.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct AAudioStreamStruct         AAudioStream;
+typedef struct AAudioStreamBuilderStruct  AAudioStreamBuilder;
+
+#ifndef AAUDIO_API
+#define AAUDIO_API /* export this symbol */
+#endif
+
+// ============================================================
+// Audio System
+// ============================================================
+
+/**
+ * The text is the ASCII symbol corresponding to the returnCode,
+ * or an English message saying the returnCode is unrecognized.
+ * This is intended for developers to use when debugging.
+ * It is not for display to users.
+ *
+ * @return pointer to a text representation of an AAudio result code.
+ */
+AAUDIO_API const char * AAudio_convertResultToText(aaudio_result_t returnCode);
+
+/**
+ * The text is the ASCII symbol corresponding to the stream state,
+ * or an English message saying the state is unrecognized.
+ * This is intended for developers to use when debugging.
+ * It is not for display to users.
+ *
+ * @return pointer to a text representation of an AAudio state.
+ */
+AAUDIO_API const char * AAudio_convertStreamStateToText(aaudio_stream_state_t state);
+
+// ============================================================
+// StreamBuilder
+// ============================================================
+
+/**
+ * Create a StreamBuilder that can be used to open a Stream.
+ *
+ * The deviceId is initially unspecified, meaning that the current default device will be used.
+ *
+ * The default direction is AAUDIO_DIRECTION_OUTPUT.
+ * The default sharing mode is AAUDIO_SHARING_MODE_SHARED.
+ * The data format, samplesPerFrames and sampleRate are unspecified and will be
+ * chosen by the device when it is opened.
+ *
+ * AAudioStreamBuilder_delete() must be called when you are done using the builder.
+ */
+AAUDIO_API aaudio_result_t AAudio_createStreamBuilder(AAudioStreamBuilder** builder);
+
+/**
+ * Request an audio device identified device using an ID.
+ * On Android, for example, the ID could be obtained from the Java AudioManager.
+ *
+ * By default, the primary device will be used.
+ *
+ * @param builder reference provided by AAudio_createStreamBuilder()
+ * @param deviceId device identifier or AAUDIO_DEVICE_UNSPECIFIED
+ */
+AAUDIO_API void AAudioStreamBuilder_setDeviceId(AAudioStreamBuilder* builder,
+                                                     int32_t deviceId);
+
+/**
+ * Request a sample rate in Hz.
+ * The stream may be opened with a different sample rate.
+ * So the application should query for the actual rate after the stream is opened.
+ *
+ * Technically, this should be called the "frame rate" or "frames per second",
+ * because it refers to the number of complete frames transferred per second.
+ * But it is traditionally called "sample rate". Se we use that term.
+ *
+ * Default is AAUDIO_UNSPECIFIED.
+
+ */
+AAUDIO_API void AAudioStreamBuilder_setSampleRate(AAudioStreamBuilder* builder,
+                                                       int32_t sampleRate);
+
+/**
+ * Request a number of samples per frame.
+ * The stream may be opened with a different value.
+ * So the application should query for the actual value after the stream is opened.
+ *
+ * Default is AAUDIO_UNSPECIFIED.
+ *
+ * Note, this quantity is sometimes referred to as "channel count".
+ */
+AAUDIO_API void AAudioStreamBuilder_setSamplesPerFrame(AAudioStreamBuilder* builder,
+                                                   int32_t samplesPerFrame);
+
+/**
+ * Request a sample data format, for example AAUDIO_FORMAT_PCM_I16.
+ * The application should query for the actual format after the stream is opened.
+ */
+AAUDIO_API void AAudioStreamBuilder_setFormat(AAudioStreamBuilder* builder,
+                                                   aaudio_audio_format_t format);
+
+/**
+ * Request a mode for sharing the device.
+ * The requested sharing mode may not be available.
+ * So the application should query for the actual mode after the stream is opened.
+ *
+ * @param builder reference provided by AAudio_createStreamBuilder()
+ * @param sharingMode AAUDIO_SHARING_MODE_LEGACY or AAUDIO_SHARING_MODE_EXCLUSIVE
+ */
+AAUDIO_API void AAudioStreamBuilder_setSharingMode(AAudioStreamBuilder* builder,
+                                                        aaudio_sharing_mode_t sharingMode);
+
+/**
+ * Request the direction for a stream. The default is AAUDIO_DIRECTION_OUTPUT.
+ *
+ * @param builder reference provided by AAudio_createStreamBuilder()
+ * @param direction AAUDIO_DIRECTION_OUTPUT or AAUDIO_DIRECTION_INPUT
+ */
+AAUDIO_API void AAudioStreamBuilder_setDirection(AAudioStreamBuilder* builder,
+                                                            aaudio_direction_t direction);
+
+/**
+ * Set the requested maximum buffer capacity in frames.
+ * The final AAudioStream capacity may differ, but will probably be at least this big.
+ *
+ * Default is AAUDIO_UNSPECIFIED.
+ *
+ * @param builder reference provided by AAudio_createStreamBuilder()
+ * @param frames the desired buffer capacity in frames or AAUDIO_UNSPECIFIED
+ */
+AAUDIO_API void AAudioStreamBuilder_setBufferCapacityInFrames(AAudioStreamBuilder* builder,
+                                                                 int32_t frames);
+
+/**
+ * Open a stream based on the options in the StreamBuilder.
+ *
+ * AAudioStream_close must be called when finished with the stream to recover
+ * the memory and to free the associated resources.
+ *
+ * @param builder reference provided by AAudio_createStreamBuilder()
+ * @param stream pointer to a variable to receive the new stream reference
+ * @return AAUDIO_OK or a negative error.
+ */
+AAUDIO_API aaudio_result_t  AAudioStreamBuilder_openStream(AAudioStreamBuilder* builder,
+                                                     AAudioStream** stream);
+
+/**
+ * Delete the resources associated with the StreamBuilder.
+ *
+ * @param builder reference provided by AAudio_createStreamBuilder()
+ * @return AAUDIO_OK or a negative error.
+ */
+AAUDIO_API aaudio_result_t  AAudioStreamBuilder_delete(AAudioStreamBuilder* builder);
+
+// ============================================================
+// Stream Control
+// ============================================================
+
+/**
+ * Free the resources associated with a stream created by AAudioStreamBuilder_openStream()
+ *
+ * @param stream reference provided by AAudioStreamBuilder_openStream()
+ * @return AAUDIO_OK or a negative error.
+ */
+AAUDIO_API aaudio_result_t  AAudioStream_close(AAudioStream* stream);
+
+/**
+ * Asynchronously request to start playing the stream. For output streams, one should
+ * write to the stream to fill the buffer before starting.
+ * Otherwise it will underflow.
+ * After this call the state will be in AAUDIO_STREAM_STATE_STARTING or AAUDIO_STREAM_STATE_STARTED.
+ *
+ * @param stream reference provided by AAudioStreamBuilder_openStream()
+ * @return AAUDIO_OK or a negative error.
+ */
+AAUDIO_API aaudio_result_t  AAudioStream_requestStart(AAudioStream* stream);
+
+/**
+ * Asynchronous request for the stream to pause.
+ * Pausing a stream will freeze the data flow but not flush any buffers.
+ * Use AAudioStream_Start() to resume playback after a pause.
+ * After this call the state will be in AAUDIO_STREAM_STATE_PAUSING or AAUDIO_STREAM_STATE_PAUSED.
+ *
+ * @param stream reference provided by AAudioStreamBuilder_openStream()
+ * @return AAUDIO_OK or a negative error.
+ */
+AAUDIO_API aaudio_result_t  AAudioStream_requestPause(AAudioStream* stream);
+
+/**
+ * Asynchronous request for the stream to flush.
+ * Flushing will discard any pending data.
+ * This call only works if the stream is pausing or paused. TODO review
+ * Frame counters are not reset by a flush. They may be advanced.
+ * After this call the state will be in AAUDIO_STREAM_STATE_FLUSHING or AAUDIO_STREAM_STATE_FLUSHED.
+ *
+ * @param stream reference provided by AAudioStreamBuilder_openStream()
+ * @return AAUDIO_OK or a negative error.
+ */
+AAUDIO_API aaudio_result_t  AAudioStream_requestFlush(AAudioStream* stream);
+
+/**
+ * Asynchronous request for the stream to stop.
+ * The stream will stop after all of the data currently buffered has been played.
+ * After this call the state will be in AAUDIO_STREAM_STATE_STOPPING or AAUDIO_STREAM_STATE_STOPPED.
+ *
+ * @param stream reference provided by AAudioStreamBuilder_openStream()
+ * @return AAUDIO_OK or a negative error.
+ */
+AAUDIO_API aaudio_result_t  AAudioStream_requestStop(AAudioStream* stream);
+
+/**
+ * Query the current state of the client, eg. AAUDIO_STREAM_STATE_PAUSING
+ *
+ * This function will immediately return the state without updating the state.
+ * If you want to update the client state based on the server state then
+ * call AAudioStream_waitForStateChange() with currentState
+ * set to AAUDIO_STREAM_STATE_UNKNOWN and a zero timeout.
+ *
+ * @param stream reference provided by AAudioStreamBuilder_openStream()
+ * @param state pointer to a variable that will be set to the current state
+ */
+AAUDIO_API aaudio_stream_state_t AAudioStream_getState(AAudioStream* stream);
+
+/**
+ * Wait until the current state no longer matches the input state.
+ *
+ * This will update the current client state.
+ *
+ * <pre><code>
+ * aaudio_stream_state_t currentState;
+ * aaudio_result_t result = AAudioStream_getState(stream, &currentState);
+ * while (result == AAUDIO_OK && currentState != AAUDIO_STREAM_STATE_PAUSING) {
+ *     result = AAudioStream_waitForStateChange(
+ *                                   stream, currentState, &currentState, MY_TIMEOUT_NANOS);
+ * }
+ * </code></pre>
+ *
+ * @param stream A reference provided by AAudioStreamBuilder_openStream()
+ * @param inputState The state we want to avoid.
+ * @param nextState Pointer to a variable that will be set to the new state.
+ * @param timeoutNanoseconds Maximum number of nanoseconds to wait for completion.
+ * @return AAUDIO_OK or a negative error.
+ */
+AAUDIO_API aaudio_result_t AAudioStream_waitForStateChange(AAudioStream* stream,
+                                            aaudio_stream_state_t inputState,
+                                            aaudio_stream_state_t *nextState,
+                                            int64_t timeoutNanoseconds);
+
+// ============================================================
+// Stream I/O
+// ============================================================
+
+/**
+ * Read data from the stream.
+ *
+ * The call will wait until the read is complete or until it runs out of time.
+ * If timeoutNanos is zero then this call will not wait.
+ *
+ * Note that timeoutNanoseconds is a relative duration in wall clock time.
+ * Time will not stop if the thread is asleep.
+ * So it will be implemented using CLOCK_BOOTTIME.
+ *
+ * This call is "strong non-blocking" unless it has to wait for data.
+ *
+ * @param stream A stream created using AAudioStreamBuilder_openStream().
+ * @param buffer The address of the first sample.
+ * @param numFrames Number of frames to read. Only complete frames will be written.
+ * @param timeoutNanoseconds Maximum number of nanoseconds to wait for completion.
+ * @return The number of frames actually read or a negative error.
+ */
+AAUDIO_API aaudio_result_t AAudioStream_read(AAudioStream* stream,
+                               void *buffer,
+                               int32_t numFrames,
+                               int64_t timeoutNanoseconds);
+
+/**
+ * Write data to the stream.
+ *
+ * The call will wait until the write is complete or until it runs out of time.
+ * If timeoutNanos is zero then this call will not wait.
+ *
+ * Note that timeoutNanoseconds is a relative duration in wall clock time.
+ * Time will not stop if the thread is asleep.
+ * So it will be implemented using CLOCK_BOOTTIME.
+ *
+ * This call is "strong non-blocking" unless it has to wait for room in the buffer.
+ *
+ * @param stream A stream created using AAudioStreamBuilder_openStream().
+ * @param buffer The address of the first sample.
+ * @param numFrames Number of frames to write. Only complete frames will be written.
+ * @param timeoutNanoseconds Maximum number of nanoseconds to wait for completion.
+ * @return The number of frames actually written or a negative error.
+ */
+AAUDIO_API aaudio_result_t AAudioStream_write(AAudioStream* stream,
+                               const void *buffer,
+                               int32_t numFrames,
+                               int64_t timeoutNanoseconds);
+
+
+// ============================================================
+// High priority audio threads
+// ============================================================
+
+typedef void *(*aaudio_audio_thread_proc_t)(void *);
+
+/**
+ * Create a thread associated with a stream. The thread has special properties for
+ * low latency audio performance. This thread can be used to implement a callback API.
+ *
+ * Only one thread may be associated with a stream.
+ *
+ * If you are using multiple streams then we recommend that you only do
+ * blocking reads or writes on one stream. You can do non-blocking I/O on the
+ * other streams by setting the timeout to zero.
+ * This thread should be created for the stream that you will block on.
+ *
+ * Note that this API is in flux.
+ *
+ * @param stream A stream created using AAudioStreamBuilder_openStream().
+ * @param periodNanoseconds the estimated period at which the audio thread will need to wake up
+ * @param threadProc your thread entry point
+ * @param arg an argument that will be passed to your thread entry point
+ * @return AAUDIO_OK or a negative error.
+ */
+AAUDIO_API aaudio_result_t AAudioStream_createThread(AAudioStream* stream,
+                                     int64_t periodNanoseconds,
+                                     aaudio_audio_thread_proc_t threadProc,
+                                     void *arg);
+
+/**
+ * Wait until the thread exits or an error occurs.
+ *
+ * @param stream A stream created using AAudioStreamBuilder_openStream().
+ * @param returnArg a pointer to a variable to receive the return value
+ * @param timeoutNanoseconds Maximum number of nanoseconds to wait for completion.
+ * @return AAUDIO_OK or a negative error.
+ */
+AAUDIO_API aaudio_result_t AAudioStream_joinThread(AAudioStream* stream,
+                                   void **returnArg,
+                                   int64_t timeoutNanoseconds);
+
+// ============================================================
+// Stream - queries
+// ============================================================
+
+
+/**
+ * This can be used to adjust the latency of the buffer by changing
+ * the threshold where blocking will occur.
+ * By combining this with AAudioStream_getXRunCount(), the latency can be tuned
+ * at run-time for each device.
+ *
+ * This cannot be set higher than AAudioStream_getBufferCapacityInFrames().
+ *
+ * Note that you will probably not get the exact size you request.
+ * Call AAudioStream_getBufferSizeInFrames() to see what the actual final size is.
+ *
+ * @param stream reference provided by AAudioStreamBuilder_openStream()
+ * @param requestedFrames requested number of frames that can be filled without blocking
+ * @return actual buffer size in frames or a negative error
+ */
+AAUDIO_API aaudio_result_t AAudioStream_setBufferSizeInFrames(AAudioStream* stream,
+                                                      int32_t requestedFrames);
+
+/**
+ * Query the maximum number of frames that can be filled without blocking.
+ *
+ * @param stream reference provided by AAudioStreamBuilder_openStream()
+ * @return buffer size in frames.
+ */
+AAUDIO_API int32_t AAudioStream_getBufferSizeInFrames(AAudioStream* stream);
+
+/**
+ * Query the number of frames that the application should read or write at
+ * one time for optimal performance. It is OK if an application writes
+ * a different number of frames. But the buffer size may need to be larger
+ * in order to avoid underruns or overruns.
+ *
+ * Note that this may or may not match the actual device burst size.
+ * For some endpoints, the burst size can vary dynamically.
+ * But these tend to be devices with high latency.
+ *
+ * @param stream reference provided by AAudioStreamBuilder_openStream()
+ * @return burst size
+ */
+AAUDIO_API int32_t AAudioStream_getFramesPerBurst(AAudioStream* stream);
+
+/**
+ * Query maximum buffer capacity in frames.
+ *
+ * @param stream reference provided by AAudioStreamBuilder_openStream()
+ * @return  the buffer capacity in frames
+ */
+AAUDIO_API int32_t AAudioStream_getBufferCapacityInFrames(AAudioStream* stream);
+
+/**
+ * An XRun is an Underrun or an Overrun.
+ * During playing, an underrun will occur if the stream is not written in time
+ * and the system runs out of valid data.
+ * During recording, an overrun will occur if the stream is not read in time
+ * and there is no place to put the incoming data so it is discarded.
+ *
+ * An underrun or overrun can cause an audible "pop" or "glitch".
+ *
+ * @param stream reference provided by AAudioStreamBuilder_openStream()
+ * @return the underrun or overrun count
+ */
+AAUDIO_API int32_t AAudioStream_getXRunCount(AAudioStream* stream);
+
+/**
+ * @param stream reference provided by AAudioStreamBuilder_openStream()
+ * @return actual sample rate
+ */
+AAUDIO_API int32_t AAudioStream_getSampleRate(AAudioStream* stream);
+
+/**
+ * The samplesPerFrame is also known as channelCount.
+ *
+ * @param stream reference provided by AAudioStreamBuilder_openStream()
+ * @return actual samples per frame
+ */
+AAUDIO_API int32_t AAudioStream_getSamplesPerFrame(AAudioStream* stream);
+
+/**
+ * @param stream reference provided by AAudioStreamBuilder_openStream()
+ * @return actual device ID
+ */
+AAUDIO_API int32_t AAudioStream_getDeviceId(AAudioStream* stream);
+
+/**
+ * @param stream reference provided by AAudioStreamBuilder_openStream()
+ * @return actual data format
+ */
+AAUDIO_API aaudio_audio_format_t AAudioStream_getFormat(AAudioStream* stream);
+
+/**
+ * Provide actual sharing mode.
+ * @param stream reference provided by AAudioStreamBuilder_openStream()
+ * @return  actual sharing mode
+ */
+AAUDIO_API aaudio_sharing_mode_t AAudioStream_getSharingMode(AAudioStream* stream);
+
+/**
+ * @param stream reference provided by AAudioStreamBuilder_openStream()
+ * @return direction
+ */
+AAUDIO_API aaudio_direction_t AAudioStream_getDirection(AAudioStream* stream);
+
+/**
+ * Passes back the number of frames that have been written since the stream was created.
+ * For an output stream, this will be advanced by the application calling write().
+ * For an input stream, this will be advanced by the endpoint.
+ *
+ * The frame position is monotonically increasing.
+ *
+ * @param stream reference provided by AAudioStreamBuilder_openStream()
+ * @return frames written
+ */
+AAUDIO_API int64_t AAudioStream_getFramesWritten(AAudioStream* stream);
+
+/**
+ * Passes back the number of frames that have been read since the stream was created.
+ * For an output stream, this will be advanced by the endpoint.
+ * For an input stream, this will be advanced by the application calling read().
+ *
+ * The frame position is monotonically increasing.
+ *
+ * @param stream reference provided by AAudioStreamBuilder_openStream()
+ * @return frames read
+ */
+AAUDIO_API int64_t AAudioStream_getFramesRead(AAudioStream* stream);
+
+/**
+ * Passes back the time at which a particular frame was presented.
+ * This can be used to synchronize audio with video or MIDI.
+ * It can also be used to align a recorded stream with a playback stream.
+ *
+ * Timestamps are only valid when the stream is in AAUDIO_STREAM_STATE_STARTED.
+ * AAUDIO_ERROR_INVALID_STATE will be returned if the stream is not started.
+ * Note that because requestStart() is asynchronous, timestamps will not be valid until
+ * a short time after calling requestStart().
+ * So AAUDIO_ERROR_INVALID_STATE should not be considered a fatal error.
+ * Just try calling again later.
+ *
+ * If an error occurs, then the position and time will not be modified.
+ *
+ * The position and time passed back are monotonically increasing.
+ *
+ * @param stream reference provided by AAudioStreamBuilder_openStream()
+ * @param clockid AAUDIO_CLOCK_MONOTONIC or AAUDIO_CLOCK_BOOTTIME
+ * @param framePosition pointer to a variable to receive the position
+ * @param timeNanoseconds pointer to a variable to receive the time
+ * @return AAUDIO_OK or a negative error
+ */
+AAUDIO_API aaudio_result_t AAudioStream_getTimestamp(AAudioStream* stream,
+                                      clockid_t clockid,
+                                      int64_t *framePosition,
+                                      int64_t *timeNanoseconds);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif //AAUDIO_AAUDIO_H
diff --git a/media/libaaudio/include/aaudio/AAudioDefinitions.h b/media/libaaudio/include/aaudio/AAudioDefinitions.h
new file mode 100644
index 0000000..e5b7d7a
--- /dev/null
+++ b/media/libaaudio/include/aaudio/AAudioDefinitions.h
@@ -0,0 +1,113 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef AAUDIO_AAUDIODEFINITIONS_H
+#define AAUDIO_AAUDIODEFINITIONS_H
+
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * This is used to represent a value that has not been specified.
+ * For example, an application could use AAUDIO_UNSPECIFIED to indicate
+ * that is did not not care what the specific value of a parameter was
+ * and would accept whatever it was given.
+ */
+#define AAUDIO_UNSPECIFIED           0
+#define AAUDIO_DEVICE_UNSPECIFIED    ((int32_t) -1)
+
+enum {
+    AAUDIO_DIRECTION_OUTPUT,
+    AAUDIO_DIRECTION_INPUT
+};
+typedef int32_t aaudio_direction_t;
+
+enum {
+    AAUDIO_FORMAT_INVALID = -1,
+    AAUDIO_FORMAT_UNSPECIFIED = 0,
+    AAUDIO_FORMAT_PCM_I16,
+    AAUDIO_FORMAT_PCM_FLOAT,
+    AAUDIO_FORMAT_PCM_I8_24,
+    AAUDIO_FORMAT_PCM_I32
+};
+typedef int32_t aaudio_audio_format_t;
+
+enum {
+    AAUDIO_OK,
+    AAUDIO_ERROR_BASE = -900, // TODO review
+    AAUDIO_ERROR_DISCONNECTED,
+    AAUDIO_ERROR_ILLEGAL_ARGUMENT,
+    AAUDIO_ERROR_INCOMPATIBLE,
+    AAUDIO_ERROR_INTERNAL, // an underlying API returned an error code
+    AAUDIO_ERROR_INVALID_STATE,
+    AAUDIO_ERROR_UNEXPECTED_STATE,
+    AAUDIO_ERROR_UNEXPECTED_VALUE,
+    AAUDIO_ERROR_INVALID_HANDLE,
+    AAUDIO_ERROR_INVALID_QUERY,
+    AAUDIO_ERROR_UNIMPLEMENTED,
+    AAUDIO_ERROR_UNAVAILABLE,
+    AAUDIO_ERROR_NO_FREE_HANDLES,
+    AAUDIO_ERROR_NO_MEMORY,
+    AAUDIO_ERROR_NULL,
+    AAUDIO_ERROR_TIMEOUT,
+    AAUDIO_ERROR_WOULD_BLOCK,
+    AAUDIO_ERROR_INVALID_ORDER,
+    AAUDIO_ERROR_OUT_OF_RANGE,
+    AAUDIO_ERROR_NO_SERVICE
+};
+typedef int32_t  aaudio_result_t;
+
+enum
+{
+    AAUDIO_STREAM_STATE_UNINITIALIZED = 0,
+    AAUDIO_STREAM_STATE_UNKNOWN,
+    AAUDIO_STREAM_STATE_OPEN,
+    AAUDIO_STREAM_STATE_STARTING,
+    AAUDIO_STREAM_STATE_STARTED,
+    AAUDIO_STREAM_STATE_PAUSING,
+    AAUDIO_STREAM_STATE_PAUSED,
+    AAUDIO_STREAM_STATE_FLUSHING,
+    AAUDIO_STREAM_STATE_FLUSHED,
+    AAUDIO_STREAM_STATE_STOPPING,
+    AAUDIO_STREAM_STATE_STOPPED,
+    AAUDIO_STREAM_STATE_CLOSING,
+    AAUDIO_STREAM_STATE_CLOSED,
+};
+typedef int32_t aaudio_stream_state_t;
+
+enum {
+    /**
+     * This will be the only stream using a particular source or sink.
+     * This mode will provide the lowest possible latency.
+     * You should close EXCLUSIVE streams immediately when you are not using them.
+     */
+    AAUDIO_SHARING_MODE_EXCLUSIVE,
+    /**
+     * Multiple applications will be mixed by the AAudio Server.
+     * This will have higher latency than the EXCLUSIVE mode.
+     */
+    AAUDIO_SHARING_MODE_SHARED
+};
+typedef int32_t aaudio_sharing_mode_t;
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // AAUDIO_AAUDIODEFINITIONS_H
diff --git a/media/libaaudio/include/aaudio/NOTICE b/media/libaaudio/include/aaudio/NOTICE
new file mode 100644
index 0000000..d6c0922
--- /dev/null
+++ b/media/libaaudio/include/aaudio/NOTICE
@@ -0,0 +1,13 @@
+Copyright (C) 2016 The Android Open Source Project
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
diff --git a/media/libaaudio/include/aaudio/README.md b/media/libaaudio/include/aaudio/README.md
new file mode 100644
index 0000000..8c4ae51
--- /dev/null
+++ b/media/libaaudio/include/aaudio/README.md
@@ -0,0 +1,4 @@
+AAudio Audio headers
+
+This folder contains the public header files.
+
diff --git a/media/libaaudio/libaaudio.map.txt b/media/libaaudio/libaaudio.map.txt
new file mode 100644
index 0000000..a9e9109
--- /dev/null
+++ b/media/libaaudio/libaaudio.map.txt
@@ -0,0 +1,42 @@
+LIBAAUDIO {
+  global:
+    AAudio_convertResultToText;
+    AAudio_convertStreamStateToText;
+    AAudio_createStreamBuilder;
+    AAudioStreamBuilder_setDeviceId;
+    AAudioStreamBuilder_setSampleRate;
+    AAudioStreamBuilder_setSamplesPerFrame;
+    AAudioStreamBuilder_setFormat;
+    AAudioStreamBuilder_setSharingMode;
+    AAudioStreamBuilder_setDirection;
+    AAudioStreamBuilder_setBufferCapacityInFrames;
+    AAudioStreamBuilder_openStream;
+    AAudioStreamBuilder_delete;
+    AAudioStream_close;
+    AAudioStream_requestStart;
+    AAudioStream_requestPause;
+    AAudioStream_requestFlush;
+    AAudioStream_requestStop;
+    AAudioStream_getState;
+    AAudioStream_waitForStateChange;
+    AAudioStream_read;
+    AAudioStream_write;
+    AAudioStream_createThread;
+    AAudioStream_joinThread;
+    AAudioStream_setBufferSizeInFrames;
+    AAudioStream_getBufferSizeInFrames;
+    AAudioStream_getFramesPerBurst;
+    AAudioStream_getBufferCapacityInFrames;
+    AAudioStream_getXRunCount;
+    AAudioStream_getSampleRate;
+    AAudioStream_getSamplesPerFrame;
+    AAudioStream_getDeviceId;
+    AAudioStream_getFormat;
+    AAudioStream_getSharingMode;
+    AAudioStream_getDirection;
+    AAudioStream_getFramesWritten;
+    AAudioStream_getFramesRead;
+    AAudioStream_getTimestamp;
+  local:
+    *;
+};
diff --git a/media/libaaudio/scripts/convert_oboe_aaudio.sh b/media/libaaudio/scripts/convert_oboe_aaudio.sh
new file mode 100755
index 0000000..2bf025a
--- /dev/null
+++ b/media/libaaudio/scripts/convert_oboe_aaudio.sh
@@ -0,0 +1,52 @@
+#!/bin/bash
+# Use SED to convert the Oboe API to the AAudio API
+
+echo "Convert Oboe names to AAudio names"
+
+echo "Top is ${ANDROID_BUILD_TOP}"
+LIBOBOE_DIR=${ANDROID_BUILD_TOP}/frameworks/av/media/liboboe
+echo "LIBOBOE_DIR is ${LIBOBOE_DIR}"
+OBOESERVICE_DIR=${ANDROID_BUILD_TOP}/frameworks/av/services/oboeservice
+echo "OBOESERVICE_DIR is ${OBOESERVICE_DIR}"
+OBOETEST_DIR=${ANDROID_BUILD_TOP}/cts/tests/tests/nativemedia/aaudio/src/
+echo "OBOETEST_DIR is ${OBOETEST_DIR}"
+
+function convertPathPattern {
+    path=$1
+    pattern=$2
+    find $path -type f  -name $pattern -exec sed -i -f ${LIBOBOE_DIR}/scripts/oboe_to_aaudio.sed {} \;
+}
+
+function convertPath {
+    path=$1
+    convertPathPattern $1 '*.cpp'
+    convertPathPattern $1 '*.h'
+    # the mk match does not work!
+    convertPathPattern $1 '*.mk'
+    convertPathPattern $1 '*.md'
+    convertPathPattern $1 '*.bp'
+}
+
+#convertPath ${LIBOBOE_DIR}/examples
+#convertPath ${LIBOBOE_DIR}/include
+#convertPath ${LIBOBOE_DIR}/src
+#convertPath ${LIBOBOE_DIR}/tests
+convertPath ${LIBOBOE_DIR}
+convertPathPattern ${LIBOBOE_DIR} Android.mk
+convertPathPattern ${LIBOBOE_DIR} liboboe.map.txt
+
+convertPath ${OBOESERVICE_DIR}
+convertPathPattern ${OBOESERVICE_DIR} Android.mk
+
+convertPathPattern ${OBOETEST_DIR} test_aaudio.cpp
+
+mv ${LIBOBOE_DIR}/include/oboe ${LIBOBOE_DIR}/include/aaudio
+mv ${LIBOBOE_DIR}/include/aaudio/OboeAudio.h ${LIBOBOE_DIR}/include/aaudio/AAudio.h
+mv ${OBOESERVICE_DIR}/OboeService.h ${OBOESERVICE_DIR}/AAudioServiceDefinitions.h
+mv ${LIBOBOE_DIR}/tests/test_oboe_api.cpp ${LIBOBOE_DIR}/tests/test_aaudio_api.cpp
+
+# Rename files with Oboe in the name.
+find -name "*OboeAudioService*.cpp"      | rename -v "s/OboeAudioService/AAudioService/g"
+find -name "*OboeAudioService*.h"      | rename -v "s/OboeAudioService/AAudioService/g"
+find -name "*Oboe*.cpp"      | rename -v "s/Oboe/AAudio/g"
+find -name "*Oboe*.h"        | rename -v "s/Oboe/AAudio/g"
diff --git a/media/libaaudio/scripts/convert_typedefs_int32.sh b/media/libaaudio/scripts/convert_typedefs_int32.sh
new file mode 100755
index 0000000..7bdbe3a
--- /dev/null
+++ b/media/libaaudio/scripts/convert_typedefs_int32.sh
@@ -0,0 +1,28 @@
+#!/bin/bash
+
+echo "Use SED to convert typedefs in AAudio API"
+
+echo "Top is ${ANDROID_BUILD_TOP}"
+LIBAAUDIO_DIR=${ANDROID_BUILD_TOP}/frameworks/av/media/libaaudio
+echo "LIBAAUDIO_DIR is ${LIBAAUDIO_DIR}"
+OBOESERVICE_DIR=${ANDROID_BUILD_TOP}/frameworks/av/services/oboeservice
+echo "OBOESERVICE_DIR is ${OBOESERVICE_DIR}"
+OBOETEST_DIR=${ANDROID_BUILD_TOP}/cts/tests/tests/nativemedia/aaudio/src/
+echo "OBOETEST_DIR is ${OBOETEST_DIR}"
+
+function convertPathPattern {
+    path=$1
+    pattern=$2
+    find $path -type f  -name $pattern -exec sed -i -f ${LIBAAUDIO_DIR}/scripts/typedefs_to_int32.sed {} \;
+}
+
+function convertPath {
+    path=$1
+    convertPathPattern $1 '*.cpp'
+    convertPathPattern $1 '*.h'
+}
+
+convertPath ${LIBAAUDIO_DIR}
+convertPath ${OBOESERVICE_DIR}
+convertPathPattern ${OBOETEST_DIR} test_aaudio.cpp
+
diff --git a/media/libaaudio/scripts/oboe_to_aaudio.sed b/media/libaaudio/scripts/oboe_to_aaudio.sed
new file mode 100644
index 0000000..7da85a0
--- /dev/null
+++ b/media/libaaudio/scripts/oboe_to_aaudio.sed
@@ -0,0 +1,16 @@
+s/liboboe/libclarinet/g
+s/oboeservice/clarinetservice/g
+
+s/OboeAudio\.h/AAudio\.h/g
+s/OboeService\.h/AAudioServiceDefinitions\.h/g
+s/OboeAudioService/AAudioService/g
+s/LOG_TAG "OboeAudio"/LOG_TAG "AAudio"/g
+s/OBOE_AUDIO_FORMAT/AAUDIO_FORMAT/g
+s/OBOEAUDIO/AAUDIO/g
+
+s/oboe/aaudio/g
+s/Oboe/AAudio/g
+s/OBOE/AAUDIO/g
+
+s/libclarinet/liboboe/g
+s/clarinetservice/oboeservice/g
diff --git a/media/libaaudio/scripts/revert_all_aaudio.sh b/media/libaaudio/scripts/revert_all_aaudio.sh
new file mode 100755
index 0000000..19c7f81
--- /dev/null
+++ b/media/libaaudio/scripts/revert_all_aaudio.sh
@@ -0,0 +1,18 @@
+#!/bin/bash
+
+echo "Revert typedefs"
+
+echo "Top is ${ANDROID_BUILD_TOP}"
+LIBAAUDIO_DIR=${ANDROID_BUILD_TOP}/frameworks/av/media/libaaudio
+echo "LIBAAUDIO_DIR is ${LIBAAUDIO_DIR}"
+OBOESERVICE_DIR=${ANDROID_BUILD_TOP}/frameworks/av/services/oboeservice
+echo "OBOESERVICE_DIR is ${OBOESERVICE_DIR}"
+OBOETEST_DIR=${ANDROID_BUILD_TOP}/cts/tests/tests/nativemedia/aaudio/src/
+echo "OBOETEST_DIR is ${OBOETEST_DIR}"
+
+git checkout -- ${LIBAAUDIO_DIR}/examples
+git checkout -- ${LIBAAUDIO_DIR}/include
+git checkout -- ${LIBAAUDIO_DIR}/src
+git checkout -- ${LIBAAUDIO_DIR}/tests
+git checkout -- ${OBOESERVICE_DIR}
+
diff --git a/media/libaaudio/scripts/typedefs_to_int32.sed b/media/libaaudio/scripts/typedefs_to_int32.sed
new file mode 100644
index 0000000..392c9a0
--- /dev/null
+++ b/media/libaaudio/scripts/typedefs_to_int32.sed
@@ -0,0 +1,8 @@
+s/aaudio_device_id_t/int32_t/g
+s/aaudio_sample_rate_t/int32_t/g
+s/aaudio_size_frames_t/int32_t/g
+s/aaudio_size_bytes_t/int32_t/g
+s/aaudio_sample_rate_t/int32_t/g
+
+s/aaudio_position_frames_t/int64_t/g
+s/aaudio_nanoseconds_t/int64_t/g
diff --git a/media/libaaudio/src/Android.mk b/media/libaaudio/src/Android.mk
new file mode 100644
index 0000000..a016b49
--- /dev/null
+++ b/media/libaaudio/src/Android.mk
@@ -0,0 +1,108 @@
+LOCAL_PATH:= $(call my-dir)
+
+# ======================= STATIC LIBRARY ==========================
+# This is being built because it make AAudio testing very easy with a complete executable.
+# TODO Remove this target later, when not needed.
+include $(CLEAR_VARS)
+
+LOCAL_MODULE := libaaudio
+LOCAL_MODULE_TAGS := optional
+
+LIBAAUDIO_DIR := $(TOP)/frameworks/av/media/libaaudio
+LIBAAUDIO_SRC_DIR := $(LIBAAUDIO_DIR)/src
+
+LOCAL_C_INCLUDES := \
+    $(call include-path-for, audio-utils) \
+    frameworks/native/include \
+    system/core/base/include \
+    frameworks/native/media/libaaudio/include/include \
+    frameworks/av/media/libaaudio/include \
+    frameworks/native/include \
+    $(LOCAL_PATH) \
+    $(LOCAL_PATH)/binding \
+    $(LOCAL_PATH)/client \
+    $(LOCAL_PATH)/core \
+    $(LOCAL_PATH)/fifo \
+    $(LOCAL_PATH)/legacy \
+    $(LOCAL_PATH)/utility
+
+LOCAL_SRC_FILES = \
+    core/AudioStream.cpp \
+    core/AudioStreamBuilder.cpp \
+    core/AAudioAudio.cpp \
+    legacy/AudioStreamRecord.cpp \
+    legacy/AudioStreamTrack.cpp \
+    utility/HandleTracker.cpp \
+    utility/AAudioUtilities.cpp \
+    fifo/FifoBuffer.cpp \
+    fifo/FifoControllerBase.cpp \
+    client/AudioEndpoint.cpp \
+    client/AudioStreamInternal.cpp \
+    client/IsochronousClockModel.cpp \
+    binding/SharedMemoryParcelable.cpp \
+    binding/SharedRegionParcelable.cpp \
+    binding/RingBufferParcelable.cpp \
+    binding/AudioEndpointParcelable.cpp \
+    binding/AAudioStreamRequest.cpp \
+    binding/AAudioStreamConfiguration.cpp \
+    binding/IAAudioService.cpp
+
+LOCAL_CFLAGS += -Wno-unused-parameter -Wall -Werror
+
+# By default, all symbols are hidden.
+# LOCAL_CFLAGS += -fvisibility=hidden
+# AAUDIO_API is used to explicitly export a function or a variable as a visible symbol.
+LOCAL_CFLAGS += -DAAUDIO_API='__attribute__((visibility("default")))'
+
+include $(BUILD_STATIC_LIBRARY)
+
+# ======================= SHARED LIBRARY ==========================
+include $(CLEAR_VARS)
+
+LOCAL_MODULE := libaaudio
+LOCAL_MODULE_TAGS := optional
+
+LOCAL_C_INCLUDES := \
+    $(call include-path-for, audio-utils) \
+    frameworks/native/include \
+    system/core/base/include \
+    frameworks/native/media/libaaudio/include/include \
+    frameworks/av/media/libaaudio/include \
+    $(LOCAL_PATH) \
+    $(LOCAL_PATH)/binding \
+    $(LOCAL_PATH)/client \
+    $(LOCAL_PATH)/core \
+    $(LOCAL_PATH)/fifo \
+    $(LOCAL_PATH)/legacy \
+    $(LOCAL_PATH)/utility
+
+LOCAL_SRC_FILES = core/AudioStream.cpp \
+    core/AudioStreamBuilder.cpp \
+    core/AAudioAudio.cpp \
+    legacy/AudioStreamRecord.cpp \
+    legacy/AudioStreamTrack.cpp \
+    utility/HandleTracker.cpp \
+    utility/AAudioUtilities.cpp \
+    fifo/FifoBuffer.cpp \
+    fifo/FifoControllerBase.cpp \
+    client/AudioEndpoint.cpp \
+    client/AudioStreamInternal.cpp \
+    client/IsochronousClockModel.cpp \
+    binding/SharedMemoryParcelable.cpp \
+    binding/SharedRegionParcelable.cpp \
+    binding/RingBufferParcelable.cpp \
+    binding/AudioEndpointParcelable.cpp \
+    binding/AAudioStreamRequest.cpp \
+    binding/AAudioStreamConfiguration.cpp \
+    binding/IAAudioService.cpp
+
+LOCAL_CFLAGS += -Wno-unused-parameter -Wall -Werror
+
+# By default, all symbols are hidden.
+# LOCAL_CFLAGS += -fvisibility=hidden
+# AAUDIO_API is used to explicitly export a function or a variable as a visible symbol.
+LOCAL_CFLAGS += -DAAUDIO_API='__attribute__((visibility("default")))'
+
+LOCAL_SHARED_LIBRARIES := libaudioclient liblog libcutils libutils libbinder
+
+include $(BUILD_SHARED_LIBRARY)
diff --git a/media/libaaudio/src/binding/AAudioServiceDefinitions.h b/media/libaaudio/src/binding/AAudioServiceDefinitions.h
new file mode 100644
index 0000000..b58d170
--- /dev/null
+++ b/media/libaaudio/src/binding/AAudioServiceDefinitions.h
@@ -0,0 +1,104 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef BINDING_AAUDIOSERVICEDEFINITIONS_H
+#define BINDING_AAUDIOSERVICEDEFINITIONS_H
+
+#include <stdint.h>
+#include <utils/RefBase.h>
+#include <binder/TextOutput.h>
+#include <binder/IInterface.h>
+
+#include <aaudio/AAudio.h>
+
+using android::NO_ERROR;
+using android::IBinder;
+
+namespace android {
+
+enum aaudio_commands_t {
+    OPEN_STREAM = IBinder::FIRST_CALL_TRANSACTION,
+    CLOSE_STREAM,
+    GET_STREAM_DESCRIPTION,
+    START_STREAM,
+    PAUSE_STREAM,
+    FLUSH_STREAM,
+    REGISTER_AUDIO_THREAD,
+    UNREGISTER_AUDIO_THREAD
+};
+
+} // namespace android
+
+namespace aaudio {
+
+typedef int32_t  aaudio_handle_t;
+
+#define AAUDIO_HANDLE_INVALID  ((aaudio_handle_t) -1)
+
+enum aaudio_commands_t {
+    OPEN_STREAM = IBinder::FIRST_CALL_TRANSACTION,
+    CLOSE_STREAM,
+    GET_STREAM_DESCRIPTION,
+    START_STREAM,
+    PAUSE_STREAM,
+    FLUSH_STREAM,
+    REGISTER_AUDIO_THREAD,
+    UNREGISTER_AUDIO_THREAD
+};
+
+// TODO Expand this to include all the open parameters.
+typedef struct AAudioServiceStreamInfo_s {
+    int32_t               deviceId;
+    int32_t               samplesPerFrame;  // number of channels
+    int32_t               sampleRate;
+    aaudio_audio_format_t audioFormat;
+} AAudioServiceStreamInfo;
+
+// This must be a fixed width so it can be in shared memory.
+enum RingbufferFlags : uint32_t {
+    NONE = 0,
+    RATE_ISOCHRONOUS = 0x0001,
+    RATE_ASYNCHRONOUS = 0x0002,
+    COHERENCY_DMA = 0x0004,
+    COHERENCY_ACQUIRE_RELEASE = 0x0008,
+    COHERENCY_AUTO = 0x0010,
+};
+
+// This is not passed through Binder.
+// Client side code will convert Binder data and fill this descriptor.
+typedef struct RingBufferDescriptor_s {
+    uint8_t* dataAddress;       // offset from read or write block
+    int64_t* writeCounterAddress;
+    int64_t* readCounterAddress;
+    int32_t  bytesPerFrame;     // index is in frames
+    int32_t  framesPerBurst;    // for ISOCHRONOUS queues
+    int32_t  capacityInFrames;  // zero if unused
+    RingbufferFlags flags;
+} RingBufferDescriptor;
+
+// This is not passed through Binder.
+// Client side code will convert Binder data and fill this descriptor.
+typedef struct EndpointDescriptor_s {
+    // Set capacityInFrames to zero if Queue is unused.
+    RingBufferDescriptor upMessageQueueDescriptor;   // server to client
+    RingBufferDescriptor downMessageQueueDescriptor; // client to server
+    RingBufferDescriptor upDataQueueDescriptor;      // eg. record
+    RingBufferDescriptor downDataQueueDescriptor;    // eg. playback
+} EndpointDescriptor;
+
+} // namespace aaudio
+
+#endif //BINDING_AAUDIOSERVICEDEFINITIONS_H
diff --git a/media/libaaudio/src/binding/AAudioServiceMessage.h b/media/libaaudio/src/binding/AAudioServiceMessage.h
new file mode 100644
index 0000000..cc77d59
--- /dev/null
+++ b/media/libaaudio/src/binding/AAudioServiceMessage.h
@@ -0,0 +1,65 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef AAUDIO_AAUDIO_SERVICE_MESSAGE_H
+#define AAUDIO_AAUDIO_SERVICE_MESSAGE_H
+
+#include <stdint.h>
+
+#include <aaudio/AAudioDefinitions.h>
+
+namespace aaudio {
+
+// TODO move this to an "include" folder for the service.
+
+struct AAudioMessageTimestamp {
+    int64_t    position;
+    int64_t    deviceOffset; // add to client position to get device position
+    int64_t    timestamp;
+};
+
+typedef enum aaudio_service_event_e : uint32_t {
+    AAUDIO_SERVICE_EVENT_STARTED,
+    AAUDIO_SERVICE_EVENT_PAUSED,
+    AAUDIO_SERVICE_EVENT_FLUSHED,
+    AAUDIO_SERVICE_EVENT_CLOSED,
+    AAUDIO_SERVICE_EVENT_DISCONNECTED
+} aaudio_service_event_t;
+
+struct AAudioMessageEvent {
+    aaudio_service_event_t event;
+    int32_t                data1;
+    int64_t                data2;
+};
+
+typedef struct AAudioServiceMessage_s {
+    enum class code : uint32_t {
+        NOTHING,
+        TIMESTAMP,
+        EVENT,
+    };
+
+    code what;
+    union {
+        AAudioMessageTimestamp timestamp;
+        AAudioMessageEvent event;
+    };
+} AAudioServiceMessage;
+
+
+} /* namespace aaudio */
+
+#endif //AAUDIO_AAUDIO_SERVICE_MESSAGE_H
diff --git a/media/libaaudio/src/binding/AAudioStreamConfiguration.cpp b/media/libaaudio/src/binding/AAudioStreamConfiguration.cpp
new file mode 100644
index 0000000..fe3a59f
--- /dev/null
+++ b/media/libaaudio/src/binding/AAudioStreamConfiguration.cpp
@@ -0,0 +1,92 @@
+/*
+ * Copyright 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stdint.h>
+
+#include <sys/mman.h>
+#include <binder/Parcel.h>
+#include <binder/Parcelable.h>
+
+#include <aaudio/AAudioDefinitions.h>
+
+#include "binding/AAudioStreamConfiguration.h"
+
+using android::NO_ERROR;
+using android::status_t;
+using android::Parcel;
+using android::Parcelable;
+
+using namespace aaudio;
+
+AAudioStreamConfiguration::AAudioStreamConfiguration() {}
+AAudioStreamConfiguration::~AAudioStreamConfiguration() {}
+
+status_t AAudioStreamConfiguration::writeToParcel(Parcel* parcel) const {
+    parcel->writeInt32(mDeviceId);
+    parcel->writeInt32(mSampleRate);
+    parcel->writeInt32(mSamplesPerFrame);
+    parcel->writeInt32((int32_t) mAudioFormat);
+    parcel->writeInt32(mBufferCapacity);
+    return NO_ERROR; // TODO check for errors above
+}
+
+status_t AAudioStreamConfiguration::readFromParcel(const Parcel* parcel) {
+    int32_t temp;
+    parcel->readInt32(&mDeviceId);
+    parcel->readInt32(&mSampleRate);
+    parcel->readInt32(&mSamplesPerFrame);
+    parcel->readInt32(&temp);
+    mAudioFormat = (aaudio_audio_format_t) temp;
+    parcel->readInt32(&mBufferCapacity);
+    return NO_ERROR; // TODO check for errors above
+}
+
+aaudio_result_t AAudioStreamConfiguration::validate() {
+    // Validate results of the open.
+    if (mSampleRate < 0 || mSampleRate >= 8 * 48000) { // TODO review limits
+        ALOGE("AAudioStreamConfiguration.validate(): invalid sampleRate = %d", mSampleRate);
+        return AAUDIO_ERROR_INTERNAL;
+    }
+
+    if (mSamplesPerFrame < 1 || mSamplesPerFrame >= 32) { // TODO review limits
+        ALOGE("AAudioStreamConfiguration.validate() invalid samplesPerFrame = %d", mSamplesPerFrame);
+        return AAUDIO_ERROR_INTERNAL;
+    }
+
+    switch (mAudioFormat) {
+    case AAUDIO_FORMAT_PCM_I16:
+    case AAUDIO_FORMAT_PCM_FLOAT:
+    case AAUDIO_FORMAT_PCM_I8_24:
+    case AAUDIO_FORMAT_PCM_I32:
+        break;
+    default:
+        ALOGE("AAudioStreamConfiguration.validate() invalid audioFormat = %d", mAudioFormat);
+        return AAUDIO_ERROR_INTERNAL;
+    }
+
+    if (mBufferCapacity < 0) {
+        ALOGE("AAudioStreamConfiguration.validate() invalid mBufferCapacity = %d", mBufferCapacity);
+        return AAUDIO_ERROR_INTERNAL;
+    }
+    return AAUDIO_OK;
+}
+
+void AAudioStreamConfiguration::dump() {
+    ALOGD("AAudioStreamConfiguration mSampleRate      = %d -----", mSampleRate);
+    ALOGD("AAudioStreamConfiguration mSamplesPerFrame = %d", mSamplesPerFrame);
+    ALOGD("AAudioStreamConfiguration mAudioFormat     = %d", (int)mAudioFormat);
+    ALOGD("AAudioStreamConfiguration mBufferCapacity  = %d", mBufferCapacity);
+}
diff --git a/media/libaaudio/src/binding/AAudioStreamConfiguration.h b/media/libaaudio/src/binding/AAudioStreamConfiguration.h
new file mode 100644
index 0000000..57b1c59
--- /dev/null
+++ b/media/libaaudio/src/binding/AAudioStreamConfiguration.h
@@ -0,0 +1,95 @@
+/*
+ * Copyright 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef BINDING_AAUDIO_STREAM_CONFIGURATION_H
+#define BINDING_AAUDIO_STREAM_CONFIGURATION_H
+
+#include <stdint.h>
+
+#include <binder/Parcel.h>
+#include <binder/Parcelable.h>
+#include <aaudio/AAudioDefinitions.h>
+
+using android::status_t;
+using android::Parcel;
+using android::Parcelable;
+
+namespace aaudio {
+
+class AAudioStreamConfiguration : public Parcelable {
+public:
+    AAudioStreamConfiguration();
+    virtual ~AAudioStreamConfiguration();
+
+    int32_t getDeviceId() const {
+        return mDeviceId;
+    }
+
+    void setDeviceId(int32_t deviceId) {
+        mDeviceId = deviceId;
+    }
+
+    int32_t getSampleRate() const {
+        return mSampleRate;
+    }
+
+    void setSampleRate(int32_t sampleRate) {
+        mSampleRate = sampleRate;
+    }
+
+    int32_t getSamplesPerFrame() const {
+        return mSamplesPerFrame;
+    }
+
+    void setSamplesPerFrame(int32_t samplesPerFrame) {
+        mSamplesPerFrame = samplesPerFrame;
+    }
+
+    aaudio_audio_format_t getAudioFormat() const {
+        return mAudioFormat;
+    }
+
+    void setAudioFormat(aaudio_audio_format_t audioFormat) {
+        mAudioFormat = audioFormat;
+    }
+
+    int32_t getBufferCapacity() const {
+        return mBufferCapacity;
+    }
+
+    void setBufferCapacity(int32_t frames) {
+        mBufferCapacity = frames;
+    }
+
+    virtual status_t writeToParcel(Parcel* parcel) const override;
+
+    virtual status_t readFromParcel(const Parcel* parcel) override;
+
+    aaudio_result_t validate();
+
+    void dump();
+
+protected:
+    int32_t               mDeviceId        = AAUDIO_DEVICE_UNSPECIFIED;
+    int32_t               mSampleRate      = AAUDIO_UNSPECIFIED;
+    int32_t               mSamplesPerFrame = AAUDIO_UNSPECIFIED;
+    aaudio_audio_format_t mAudioFormat     = AAUDIO_FORMAT_UNSPECIFIED;
+    int32_t               mBufferCapacity  = AAUDIO_UNSPECIFIED;
+};
+
+} /* namespace aaudio */
+
+#endif //BINDING_AAUDIO_STREAM_CONFIGURATION_H
diff --git a/media/libaaudio/src/binding/AAudioStreamRequest.cpp b/media/libaaudio/src/binding/AAudioStreamRequest.cpp
new file mode 100644
index 0000000..5202b73
--- /dev/null
+++ b/media/libaaudio/src/binding/AAudioStreamRequest.cpp
@@ -0,0 +1,66 @@
+/*
+ * Copyright 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stdint.h>
+
+#include <sys/mman.h>
+#include <binder/Parcel.h>
+#include <binder/Parcelable.h>
+
+#include <aaudio/AAudioDefinitions.h>
+
+#include "binding/AAudioStreamConfiguration.h"
+#include "binding/AAudioStreamRequest.h"
+
+using android::NO_ERROR;
+using android::status_t;
+using android::Parcel;
+using android::Parcelable;
+
+using namespace aaudio;
+
+AAudioStreamRequest::AAudioStreamRequest()
+    : mConfiguration()
+    {}
+
+AAudioStreamRequest::~AAudioStreamRequest() {}
+
+status_t AAudioStreamRequest::writeToParcel(Parcel* parcel) const {
+    parcel->writeInt32((int32_t) mUserId);
+    parcel->writeInt32((int32_t) mProcessId);
+    mConfiguration.writeToParcel(parcel);
+    return NO_ERROR; // TODO check for errors above
+}
+
+status_t AAudioStreamRequest::readFromParcel(const Parcel* parcel) {
+    int32_t temp;
+    parcel->readInt32(&temp);
+    mUserId = (uid_t) temp;
+    parcel->readInt32(&temp);
+    mProcessId = (pid_t) temp;
+    mConfiguration.readFromParcel(parcel);
+    return NO_ERROR; // TODO check for errors above
+}
+
+aaudio_result_t AAudioStreamRequest::validate() {
+    return mConfiguration.validate();
+}
+
+void AAudioStreamRequest::dump() {
+    ALOGD("AAudioStreamRequest mUserId = %d -----", mUserId);
+    ALOGD("AAudioStreamRequest mProcessId = %d", mProcessId);
+    mConfiguration.dump();
+}
diff --git a/media/libaaudio/src/binding/AAudioStreamRequest.h b/media/libaaudio/src/binding/AAudioStreamRequest.h
new file mode 100644
index 0000000..0fd28ba
--- /dev/null
+++ b/media/libaaudio/src/binding/AAudioStreamRequest.h
@@ -0,0 +1,75 @@
+/*
+ * Copyright 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef BINDING_AAUDIO_STREAM_REQUEST_H
+#define BINDING_AAUDIO_STREAM_REQUEST_H
+
+#include <stdint.h>
+
+#include <binder/Parcel.h>
+#include <binder/Parcelable.h>
+#include <aaudio/AAudioDefinitions.h>
+
+#include "binding/AAudioStreamConfiguration.h"
+
+using android::status_t;
+using android::Parcel;
+using android::Parcelable;
+
+namespace aaudio {
+
+class AAudioStreamRequest : public Parcelable {
+public:
+    AAudioStreamRequest();
+    virtual ~AAudioStreamRequest();
+
+    uid_t getUserId() const {
+        return mUserId;
+    }
+
+    void setUserId(uid_t userId) {
+        mUserId = userId;
+    }
+
+    pid_t getProcessId() const {
+        return mProcessId;
+    }
+
+    void setProcessId(pid_t processId) {
+        mProcessId = processId;
+    }
+
+    AAudioStreamConfiguration &getConfiguration() {
+        return mConfiguration;
+    }
+
+    virtual status_t writeToParcel(Parcel* parcel) const override;
+
+    virtual status_t readFromParcel(const Parcel* parcel) override;
+
+    aaudio_result_t validate();
+
+    void dump();
+
+protected:
+    AAudioStreamConfiguration  mConfiguration;
+    uid_t    mUserId;
+    pid_t    mProcessId;
+};
+
+} /* namespace aaudio */
+
+#endif //BINDING_AAUDIO_STREAM_REQUEST_H
diff --git a/media/libaaudio/src/binding/AudioEndpointParcelable.cpp b/media/libaaudio/src/binding/AudioEndpointParcelable.cpp
new file mode 100644
index 0000000..f40ee02
--- /dev/null
+++ b/media/libaaudio/src/binding/AudioEndpointParcelable.cpp
@@ -0,0 +1,141 @@
+/*
+ * Copyright 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stdint.h>
+
+#include <sys/mman.h>
+#include <binder/Parcel.h>
+#include <binder/Parcelable.h>
+
+#include "binding/AAudioServiceDefinitions.h"
+#include "binding/RingBufferParcelable.h"
+#include "binding/AudioEndpointParcelable.h"
+
+using android::NO_ERROR;
+using android::status_t;
+using android::Parcel;
+using android::Parcelable;
+
+using namespace aaudio;
+
+/**
+ * Container for information about the message queues plus
+ * general stream information needed by AAudio clients.
+ * It contains no addresses, just sizes, offsets and file descriptors for
+ * shared memory that can be passed through Binder.
+ */
+AudioEndpointParcelable::AudioEndpointParcelable() {}
+
+AudioEndpointParcelable::~AudioEndpointParcelable() {}
+
+/**
+ * Add the file descriptor to the table.
+ * @return index in table or negative error
+ */
+int32_t AudioEndpointParcelable::addFileDescriptor(int fd, int32_t sizeInBytes) {
+    if (mNumSharedMemories >= MAX_SHARED_MEMORIES) {
+        return AAUDIO_ERROR_OUT_OF_RANGE;
+    }
+    int32_t index = mNumSharedMemories++;
+    mSharedMemories[index].setup(fd, sizeInBytes);
+    return index;
+}
+
+/**
+ * The read and write must be symmetric.
+ */
+status_t AudioEndpointParcelable::writeToParcel(Parcel* parcel) const {
+    parcel->writeInt32(mNumSharedMemories);
+    for (int i = 0; i < mNumSharedMemories; i++) {
+        mSharedMemories[i].writeToParcel(parcel);
+    }
+    mUpMessageQueueParcelable.writeToParcel(parcel);
+    mDownMessageQueueParcelable.writeToParcel(parcel);
+    mUpDataQueueParcelable.writeToParcel(parcel);
+    mDownDataQueueParcelable.writeToParcel(parcel);
+    return NO_ERROR; // TODO check for errors above
+}
+
+status_t AudioEndpointParcelable::readFromParcel(const Parcel* parcel) {
+    parcel->readInt32(&mNumSharedMemories);
+    for (int i = 0; i < mNumSharedMemories; i++) {
+        mSharedMemories[i].readFromParcel(parcel);
+    }
+    mUpMessageQueueParcelable.readFromParcel(parcel);
+    mDownMessageQueueParcelable.readFromParcel(parcel);
+    mUpDataQueueParcelable.readFromParcel(parcel);
+    mDownDataQueueParcelable.readFromParcel(parcel);
+    return NO_ERROR; // TODO check for errors above
+}
+
+aaudio_result_t AudioEndpointParcelable::resolve(EndpointDescriptor *descriptor) {
+    // TODO error check
+    mUpMessageQueueParcelable.resolve(mSharedMemories, &descriptor->upMessageQueueDescriptor);
+    mDownMessageQueueParcelable.resolve(mSharedMemories,
+                                        &descriptor->downMessageQueueDescriptor);
+    mUpDataQueueParcelable.resolve(mSharedMemories, &descriptor->upDataQueueDescriptor);
+    mDownDataQueueParcelable.resolve(mSharedMemories, &descriptor->downDataQueueDescriptor);
+    return AAUDIO_OK;
+}
+
+aaudio_result_t AudioEndpointParcelable::validate() {
+    aaudio_result_t result;
+    if (mNumSharedMemories < 0 || mNumSharedMemories >= MAX_SHARED_MEMORIES) {
+        ALOGE("AudioEndpointParcelable invalid mNumSharedMemories = %d", mNumSharedMemories);
+        return AAUDIO_ERROR_INTERNAL;
+    }
+    for (int i = 0; i < mNumSharedMemories; i++) {
+        result = mSharedMemories[i].validate();
+        if (result != AAUDIO_OK) {
+            return result;
+        }
+    }
+    if ((result = mUpMessageQueueParcelable.validate()) != AAUDIO_OK) {
+        ALOGE("AudioEndpointParcelable invalid mUpMessageQueueParcelable = %d", result);
+        return result;
+    }
+    if ((result = mDownMessageQueueParcelable.validate()) != AAUDIO_OK) {
+        ALOGE("AudioEndpointParcelable invalid mDownMessageQueueParcelable = %d", result);
+        return result;
+    }
+    if ((result = mUpDataQueueParcelable.validate()) != AAUDIO_OK) {
+        ALOGE("AudioEndpointParcelable invalid mUpDataQueueParcelable = %d", result);
+        return result;
+    }
+    if ((result = mDownDataQueueParcelable.validate()) != AAUDIO_OK) {
+        ALOGE("AudioEndpointParcelable invalid mDownDataQueueParcelable = %d", result);
+        return result;
+    }
+    return AAUDIO_OK;
+}
+
+void AudioEndpointParcelable::dump() {
+    ALOGD("AudioEndpointParcelable ======================================= BEGIN");
+    ALOGD("AudioEndpointParcelable mNumSharedMemories = %d", mNumSharedMemories);
+    for (int i = 0; i < mNumSharedMemories; i++) {
+        mSharedMemories[i].dump();
+    }
+    ALOGD("AudioEndpointParcelable mUpMessageQueueParcelable =========");
+    mUpMessageQueueParcelable.dump();
+    ALOGD("AudioEndpointParcelable mDownMessageQueueParcelable =======");
+    mDownMessageQueueParcelable.dump();
+    ALOGD("AudioEndpointParcelable mUpDataQueueParcelable ============");
+    mUpDataQueueParcelable.dump();
+    ALOGD("AudioEndpointParcelable mDownDataQueueParcelable ==========");
+    mDownDataQueueParcelable.dump();
+    ALOGD("AudioEndpointParcelable ======================================= END");
+}
+
diff --git a/media/libaaudio/src/binding/AudioEndpointParcelable.h b/media/libaaudio/src/binding/AudioEndpointParcelable.h
new file mode 100644
index 0000000..d4646d0
--- /dev/null
+++ b/media/libaaudio/src/binding/AudioEndpointParcelable.h
@@ -0,0 +1,76 @@
+/*
+ * Copyright 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef BINDING_AUDIOENDPOINTPARCELABLE_H
+#define BINDING_AUDIOENDPOINTPARCELABLE_H
+
+#include <stdint.h>
+
+//#include <sys/mman.h>
+#include <binder/Parcel.h>
+#include <binder/Parcelable.h>
+
+#include "binding/AAudioServiceDefinitions.h"
+#include "binding/RingBufferParcelable.h"
+
+using android::status_t;
+using android::Parcel;
+using android::Parcelable;
+
+namespace aaudio {
+
+/**
+ * Container for information about the message queues plus
+ * general stream information needed by AAudio clients.
+ * It contains no addresses, just sizes, offsets and file descriptors for
+ * shared memory that can be passed through Binder.
+ */
+class AudioEndpointParcelable : public Parcelable {
+public:
+    AudioEndpointParcelable();
+    virtual ~AudioEndpointParcelable();
+
+    /**
+     * Add the file descriptor to the table.
+     * @return index in table or negative error
+     */
+    int32_t addFileDescriptor(int fd, int32_t sizeInBytes);
+
+    virtual status_t writeToParcel(Parcel* parcel) const override;
+
+    virtual status_t readFromParcel(const Parcel* parcel) override;
+
+    aaudio_result_t resolve(EndpointDescriptor *descriptor);
+
+    aaudio_result_t validate();
+
+    void dump();
+
+public: // TODO add getters
+    // Set capacityInFrames to zero if Queue is unused.
+    RingBufferParcelable    mUpMessageQueueParcelable;   // server to client
+    RingBufferParcelable    mDownMessageQueueParcelable; // to server
+    RingBufferParcelable    mUpDataQueueParcelable;      // eg. record, could share same queue
+    RingBufferParcelable    mDownDataQueueParcelable;    // eg. playback
+
+private:
+    int32_t                 mNumSharedMemories = 0;
+    SharedMemoryParcelable  mSharedMemories[MAX_SHARED_MEMORIES];
+};
+
+} /* namespace aaudio */
+
+#endif //BINDING_AUDIOENDPOINTPARCELABLE_H
diff --git a/media/libaaudio/src/binding/IAAudioService.cpp b/media/libaaudio/src/binding/IAAudioService.cpp
new file mode 100644
index 0000000..c21033e
--- /dev/null
+++ b/media/libaaudio/src/binding/IAAudioService.cpp
@@ -0,0 +1,287 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <aaudio/AAudioDefinitions.h>
+
+#include "binding/AudioEndpointParcelable.h"
+#include "binding/AAudioStreamRequest.h"
+#include "binding/AAudioServiceDefinitions.h"
+#include "binding/AAudioStreamConfiguration.h"
+#include "binding/IAAudioService.h"
+#include "utility/AAudioUtilities.h"
+
+namespace android {
+
+using aaudio::aaudio_handle_t;
+
+/**
+ * This is used by the AAudio Client to talk to the AAudio Service.
+ *
+ * The order of parameters in the Parcels must match with code in AAudioService.cpp.
+ */
+class BpAAudioService : public BpInterface<IAAudioService>
+{
+public:
+    explicit BpAAudioService(const sp<IBinder>& impl)
+        : BpInterface<IAAudioService>(impl)
+    {
+    }
+
+    virtual aaudio_handle_t openStream(aaudio::AAudioStreamRequest &request,
+                                     aaudio::AAudioStreamConfiguration &configuration) override {
+        Parcel data, reply;
+        // send command
+        data.writeInterfaceToken(IAAudioService::getInterfaceDescriptor());
+        request.writeToParcel(&data);
+        status_t err = remote()->transact(OPEN_STREAM, data, &reply);
+        if (err != NO_ERROR) {
+            return AAudioConvert_androidToAAudioResult(err);
+        }
+        // parse reply
+        aaudio_handle_t stream;
+        reply.readInt32(&stream);
+        configuration.readFromParcel(&reply);
+        return stream;
+    }
+
+    virtual aaudio_result_t closeStream(aaudio_handle_t streamHandle) override {
+        Parcel data, reply;
+        // send command
+        data.writeInterfaceToken(IAAudioService::getInterfaceDescriptor());
+        data.writeInt32(streamHandle);
+        status_t err = remote()->transact(CLOSE_STREAM, data, &reply);
+        if (err != NO_ERROR) {
+            return AAudioConvert_androidToAAudioResult(err);
+        }
+        // parse reply
+        aaudio_result_t res;
+        reply.readInt32(&res);
+        return res;
+    }
+
+    virtual aaudio_result_t getStreamDescription(aaudio_handle_t streamHandle,
+                                               aaudio::AudioEndpointParcelable &parcelable)   {
+        Parcel data, reply;
+        // send command
+        data.writeInterfaceToken(IAAudioService::getInterfaceDescriptor());
+        data.writeInt32(streamHandle);
+        status_t err = remote()->transact(GET_STREAM_DESCRIPTION, data, &reply);
+        if (err != NO_ERROR) {
+            return AAudioConvert_androidToAAudioResult(err);
+        }
+        // parse reply
+        parcelable.readFromParcel(&reply);
+        parcelable.dump();
+        aaudio_result_t result = parcelable.validate();
+        if (result != AAUDIO_OK) {
+            return result;
+        }
+        reply.readInt32(&result);
+        return result;
+    }
+
+    // TODO should we wait for a reply?
+    virtual aaudio_result_t startStream(aaudio_handle_t streamHandle) override {
+        Parcel data, reply;
+        // send command
+        data.writeInterfaceToken(IAAudioService::getInterfaceDescriptor());
+        data.writeInt32(streamHandle);
+        status_t err = remote()->transact(START_STREAM, data, &reply);
+        if (err != NO_ERROR) {
+            return AAudioConvert_androidToAAudioResult(err);
+        }
+        // parse reply
+        aaudio_result_t res;
+        reply.readInt32(&res);
+        return res;
+    }
+
+    virtual aaudio_result_t pauseStream(aaudio_handle_t streamHandle) override {
+        Parcel data, reply;
+        // send command
+        data.writeInterfaceToken(IAAudioService::getInterfaceDescriptor());
+        data.writeInt32(streamHandle);
+        status_t err = remote()->transact(PAUSE_STREAM, data, &reply);
+        if (err != NO_ERROR) {
+            return AAudioConvert_androidToAAudioResult(err);
+        }
+        // parse reply
+        aaudio_result_t res;
+        reply.readInt32(&res);
+        return res;
+    }
+
+    virtual aaudio_result_t flushStream(aaudio_handle_t streamHandle) override {
+        Parcel data, reply;
+        // send command
+        data.writeInterfaceToken(IAAudioService::getInterfaceDescriptor());
+        data.writeInt32(streamHandle);
+        status_t err = remote()->transact(FLUSH_STREAM, data, &reply);
+        if (err != NO_ERROR) {
+            return AAudioConvert_androidToAAudioResult(err);
+        }
+        // parse reply
+        aaudio_result_t res;
+        reply.readInt32(&res);
+        return res;
+    }
+
+    virtual aaudio_result_t registerAudioThread(aaudio_handle_t streamHandle, pid_t clientThreadId,
+                                              int64_t periodNanoseconds)
+    override {
+        Parcel data, reply;
+        // send command
+        data.writeInterfaceToken(IAAudioService::getInterfaceDescriptor());
+        data.writeInt32(streamHandle);
+        data.writeInt32((int32_t) clientThreadId);
+        data.writeInt64(periodNanoseconds);
+        status_t err = remote()->transact(REGISTER_AUDIO_THREAD, data, &reply);
+        if (err != NO_ERROR) {
+            return AAudioConvert_androidToAAudioResult(err);
+        }
+        // parse reply
+        aaudio_result_t res;
+        reply.readInt32(&res);
+        return res;
+    }
+
+    virtual aaudio_result_t unregisterAudioThread(aaudio_handle_t streamHandle, pid_t clientThreadId)
+    override {
+        Parcel data, reply;
+        // send command
+        data.writeInterfaceToken(IAAudioService::getInterfaceDescriptor());
+        data.writeInt32(streamHandle);
+        data.writeInt32((int32_t) clientThreadId);
+        status_t err = remote()->transact(UNREGISTER_AUDIO_THREAD, data, &reply);
+        if (err != NO_ERROR) {
+            return AAudioConvert_androidToAAudioResult(err);
+        }
+        // parse reply
+        aaudio_result_t res;
+        reply.readInt32(&res);
+        return res;
+    }
+
+};
+
+// Implement an interface to the service.
+// This is here so that you don't have to link with liboboe static library.
+IMPLEMENT_META_INTERFACE(AAudioService, "IAAudioService");
+
+// The order of parameters in the Parcels must match with code in BpAAudioService
+
+status_t BnAAudioService::onTransact(uint32_t code, const Parcel& data,
+                                        Parcel* reply, uint32_t flags) {
+    aaudio_handle_t stream;
+    aaudio::AAudioStreamRequest request;
+    aaudio::AAudioStreamConfiguration configuration;
+    pid_t pid;
+    int64_t nanoseconds;
+    aaudio_result_t result;
+    ALOGV("BnAAudioService::onTransact(%i) %i", code, flags);
+    data.checkInterface(this);
+
+    switch(code) {
+        case OPEN_STREAM: {
+            request.readFromParcel(&data);
+            stream = openStream(request, configuration);
+            ALOGD("BnAAudioService::onTransact OPEN_STREAM server handle = 0x%08X", stream);
+            reply->writeInt32(stream);
+            configuration.writeToParcel(reply);
+            return NO_ERROR;
+        } break;
+
+        case CLOSE_STREAM: {
+            data.readInt32(&stream);
+            ALOGD("BnAAudioService::onTransact CLOSE_STREAM 0x%08X", stream);
+            result = closeStream(stream);
+            reply->writeInt32(result);
+            return NO_ERROR;
+        } break;
+
+        case GET_STREAM_DESCRIPTION: {
+            data.readInt32(&stream);
+            ALOGD("BnAAudioService::onTransact GET_STREAM_DESCRIPTION 0x%08X", stream);
+            aaudio::AudioEndpointParcelable parcelable;
+            result = getStreamDescription(stream, parcelable);
+            if (result != AAUDIO_OK) {
+                return AAudioConvert_aaudioToAndroidStatus(result);
+            }
+            parcelable.dump();
+            result = parcelable.validate();
+            if (result != AAUDIO_OK) {
+                return AAudioConvert_aaudioToAndroidStatus(result);
+            }
+            parcelable.writeToParcel(reply);
+            reply->writeInt32(result);
+            return NO_ERROR;
+        } break;
+
+        case START_STREAM: {
+            data.readInt32(&stream);
+            result = startStream(stream);
+            ALOGD("BnAAudioService::onTransact START_STREAM 0x%08X, result = %d",
+                    stream, result);
+            reply->writeInt32(result);
+            return NO_ERROR;
+        } break;
+
+        case PAUSE_STREAM: {
+            data.readInt32(&stream);
+            result = pauseStream(stream);
+            ALOGD("BnAAudioService::onTransact PAUSE_STREAM 0x%08X, result = %d",
+                    stream, result);
+            reply->writeInt32(result);
+            return NO_ERROR;
+        } break;
+
+        case FLUSH_STREAM: {
+            data.readInt32(&stream);
+            result = flushStream(stream);
+            ALOGD("BnAAudioService::onTransact FLUSH_STREAM 0x%08X, result = %d",
+                    stream, result);
+            reply->writeInt32(result);
+            return NO_ERROR;
+        } break;
+
+        case REGISTER_AUDIO_THREAD: {
+            data.readInt32(&stream);
+            data.readInt32(&pid);
+            data.readInt64(&nanoseconds);
+            result = registerAudioThread(stream, pid, nanoseconds);
+            ALOGD("BnAAudioService::onTransact REGISTER_AUDIO_THREAD 0x%08X, result = %d",
+                    stream, result);
+            reply->writeInt32(result);
+            return NO_ERROR;
+        } break;
+
+        case UNREGISTER_AUDIO_THREAD: {
+            data.readInt32(&stream);
+            data.readInt32(&pid);
+            result = unregisterAudioThread(stream, pid);
+            ALOGD("BnAAudioService::onTransact UNREGISTER_AUDIO_THREAD 0x%08X, result = %d",
+                    stream, result);
+            reply->writeInt32(result);
+            return NO_ERROR;
+        } break;
+
+        default:
+            // ALOGW("BnAAudioService::onTransact not handled %u", code);
+            return BBinder::onTransact(code, data, reply, flags);
+    }
+}
+
+} /* namespace android */
diff --git a/media/libaaudio/src/binding/IAAudioService.h b/media/libaaudio/src/binding/IAAudioService.h
new file mode 100644
index 0000000..53c3b45
--- /dev/null
+++ b/media/libaaudio/src/binding/IAAudioService.h
@@ -0,0 +1,90 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef BINDING_IAAUDIOSERVICE_H
+#define BINDING_IAAUDIOSERVICE_H
+
+#include <stdint.h>
+#include <utils/RefBase.h>
+#include <binder/TextOutput.h>
+#include <binder/IInterface.h>
+
+#include <aaudio/AAudio.h>
+
+#include "binding/AAudioServiceDefinitions.h"
+#include "binding/AudioEndpointParcelable.h"
+#include "binding/AAudioStreamRequest.h"
+#include "binding/AAudioStreamConfiguration.h"
+
+namespace android {
+
+// Interface (our AIDL) - Shared by server and client
+class IAAudioService : public IInterface {
+public:
+
+    DECLARE_META_INTERFACE(AAudioService);
+
+    /**
+     * @param request info needed to create the stream
+     * @param configuration contains information about the created stream
+     * @return handle to the stream or a negative error
+     */
+    virtual aaudio::aaudio_handle_t openStream(aaudio::AAudioStreamRequest &request,
+                                     aaudio::AAudioStreamConfiguration &configuration) = 0;
+
+    virtual aaudio_result_t closeStream(aaudio::aaudio_handle_t streamHandle) = 0;
+
+    /* Get an immutable description of the in-memory queues
+    * used to communicate with the underlying HAL or Service.
+    */
+    virtual aaudio_result_t getStreamDescription(aaudio::aaudio_handle_t streamHandle,
+                                               aaudio::AudioEndpointParcelable &parcelable) = 0;
+
+    /**
+     * Start the flow of data.
+     */
+    virtual aaudio_result_t startStream(aaudio::aaudio_handle_t streamHandle) = 0;
+
+    /**
+     * Stop the flow of data such that start() can resume without loss of data.
+     */
+    virtual aaudio_result_t pauseStream(aaudio::aaudio_handle_t streamHandle) = 0;
+
+    /**
+     *  Discard any data held by the underlying HAL or Service.
+     */
+    virtual aaudio_result_t flushStream(aaudio::aaudio_handle_t streamHandle) = 0;
+
+    /**
+     * Manage the specified thread as a low latency audio thread.
+     */
+    virtual aaudio_result_t registerAudioThread(aaudio::aaudio_handle_t streamHandle, pid_t clientThreadId,
+                                              int64_t periodNanoseconds) = 0;
+
+    virtual aaudio_result_t unregisterAudioThread(aaudio::aaudio_handle_t streamHandle,
+                                                pid_t clientThreadId) = 0;
+};
+
+class BnAAudioService : public BnInterface<IAAudioService> {
+public:
+    virtual status_t onTransact(uint32_t code, const Parcel& data,
+                                Parcel* reply, uint32_t flags = 0);
+
+};
+
+} /* namespace android */
+
+#endif //BINDING_IAAUDIOSERVICE_H
diff --git a/media/libaaudio/src/binding/RingBufferParcelable.cpp b/media/libaaudio/src/binding/RingBufferParcelable.cpp
new file mode 100644
index 0000000..3a92929
--- /dev/null
+++ b/media/libaaudio/src/binding/RingBufferParcelable.cpp
@@ -0,0 +1,170 @@
+/*
+ * Copyright 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stdint.h>
+
+#include <binder/Parcelable.h>
+
+#include "binding/AAudioServiceDefinitions.h"
+#include "binding/SharedRegionParcelable.h"
+#include "binding/RingBufferParcelable.h"
+
+using namespace aaudio;
+
+RingBufferParcelable::RingBufferParcelable() {}
+RingBufferParcelable::~RingBufferParcelable() {}
+
+// TODO This assumes that all three use the same SharedMemoryParcelable
+void RingBufferParcelable::setupMemory(int32_t sharedMemoryIndex,
+                 int32_t dataMemoryOffset,
+                 int32_t dataSizeInBytes,
+                 int32_t readCounterOffset,
+                 int32_t writeCounterOffset,
+                 int32_t counterSizeBytes) {
+    mReadCounterParcelable.setup(sharedMemoryIndex, readCounterOffset, counterSizeBytes);
+    mWriteCounterParcelable.setup(sharedMemoryIndex, writeCounterOffset, counterSizeBytes);
+    mDataParcelable.setup(sharedMemoryIndex, dataMemoryOffset, dataSizeInBytes);
+}
+
+void RingBufferParcelable::setupMemory(int32_t sharedMemoryIndex,
+                 int32_t dataMemoryOffset,
+                 int32_t dataSizeInBytes) {
+    mReadCounterParcelable.setup(sharedMemoryIndex, 0, 0);
+    mWriteCounterParcelable.setup(sharedMemoryIndex, 0, 0);
+    mDataParcelable.setup(sharedMemoryIndex, dataMemoryOffset, dataSizeInBytes);
+}
+
+int32_t RingBufferParcelable::getBytesPerFrame() {
+    return mBytesPerFrame;
+}
+
+void RingBufferParcelable::setBytesPerFrame(int32_t bytesPerFrame) {
+    mBytesPerFrame = bytesPerFrame;
+}
+
+int32_t RingBufferParcelable::getFramesPerBurst() {
+    return mFramesPerBurst;
+}
+
+void RingBufferParcelable::setFramesPerBurst(int32_t framesPerBurst) {
+    mFramesPerBurst = framesPerBurst;
+}
+
+int32_t RingBufferParcelable::getCapacityInFrames() {
+    return mCapacityInFrames;
+}
+
+void RingBufferParcelable::setCapacityInFrames(int32_t capacityInFrames) {
+    mCapacityInFrames = capacityInFrames;
+}
+
+/**
+ * The read and write must be symmetric.
+ */
+status_t RingBufferParcelable::writeToParcel(Parcel* parcel) const {
+    parcel->writeInt32(mCapacityInFrames);
+    if (mCapacityInFrames > 0) {
+        parcel->writeInt32(mBytesPerFrame);
+        parcel->writeInt32(mFramesPerBurst);
+        parcel->writeInt32(mFlags);
+        mReadCounterParcelable.writeToParcel(parcel);
+        mWriteCounterParcelable.writeToParcel(parcel);
+        mDataParcelable.writeToParcel(parcel);
+    }
+    return NO_ERROR; // TODO check for errors above
+}
+
+status_t RingBufferParcelable::readFromParcel(const Parcel* parcel) {
+    parcel->readInt32(&mCapacityInFrames);
+    if (mCapacityInFrames > 0) {
+        parcel->readInt32(&mBytesPerFrame);
+        parcel->readInt32(&mFramesPerBurst);
+        parcel->readInt32((int32_t *)&mFlags);
+        mReadCounterParcelable.readFromParcel(parcel);
+        mWriteCounterParcelable.readFromParcel(parcel);
+        mDataParcelable.readFromParcel(parcel);
+    }
+    return NO_ERROR; // TODO check for errors above
+}
+
+aaudio_result_t RingBufferParcelable::resolve(SharedMemoryParcelable *memoryParcels, RingBufferDescriptor *descriptor) {
+    aaudio_result_t result;
+
+    result = mReadCounterParcelable.resolve(memoryParcels,
+                                            (void **) &descriptor->readCounterAddress);
+    if (result != AAUDIO_OK) {
+        return result;
+    }
+
+    result = mWriteCounterParcelable.resolve(memoryParcels,
+                                             (void **) &descriptor->writeCounterAddress);
+    if (result != AAUDIO_OK) {
+        return result;
+    }
+
+    result = mDataParcelable.resolve(memoryParcels, (void **) &descriptor->dataAddress);
+    if (result != AAUDIO_OK) {
+        return result;
+    }
+
+    descriptor->bytesPerFrame = mBytesPerFrame;
+    descriptor->framesPerBurst = mFramesPerBurst;
+    descriptor->capacityInFrames = mCapacityInFrames;
+    descriptor->flags = mFlags;
+    return AAUDIO_OK;
+}
+
+aaudio_result_t RingBufferParcelable::validate() {
+    aaudio_result_t result;
+    if (mCapacityInFrames < 0 || mCapacityInFrames >= 32 * 1024) {
+        ALOGE("RingBufferParcelable invalid mCapacityInFrames = %d", mCapacityInFrames);
+        return AAUDIO_ERROR_INTERNAL;
+    }
+    if (mBytesPerFrame < 0 || mBytesPerFrame >= 256) {
+        ALOGE("RingBufferParcelable invalid mBytesPerFrame = %d", mBytesPerFrame);
+        return AAUDIO_ERROR_INTERNAL;
+    }
+    if (mFramesPerBurst < 0 || mFramesPerBurst >= 1024) {
+        ALOGE("RingBufferParcelable invalid mFramesPerBurst = %d", mFramesPerBurst);
+        return AAUDIO_ERROR_INTERNAL;
+    }
+    if ((result = mReadCounterParcelable.validate()) != AAUDIO_OK) {
+        ALOGE("RingBufferParcelable invalid mReadCounterParcelable = %d", result);
+        return result;
+    }
+    if ((result = mWriteCounterParcelable.validate()) != AAUDIO_OK) {
+        ALOGE("RingBufferParcelable invalid mWriteCounterParcelable = %d", result);
+        return result;
+    }
+    if ((result = mDataParcelable.validate()) != AAUDIO_OK) {
+        ALOGE("RingBufferParcelable invalid mDataParcelable = %d", result);
+        return result;
+    }
+    return AAUDIO_OK;
+}
+
+
+void RingBufferParcelable::dump() {
+    ALOGD("RingBufferParcelable mCapacityInFrames = %d ---------", mCapacityInFrames);
+    if (mCapacityInFrames > 0) {
+        ALOGD("RingBufferParcelable mBytesPerFrame = %d", mBytesPerFrame);
+        ALOGD("RingBufferParcelable mFramesPerBurst = %d", mFramesPerBurst);
+        ALOGD("RingBufferParcelable mFlags = %u", mFlags);
+        mReadCounterParcelable.dump();
+        mWriteCounterParcelable.dump();
+        mDataParcelable.dump();
+    }
+}
diff --git a/media/libaaudio/src/binding/RingBufferParcelable.h b/media/libaaudio/src/binding/RingBufferParcelable.h
new file mode 100644
index 0000000..3f82c79
--- /dev/null
+++ b/media/libaaudio/src/binding/RingBufferParcelable.h
@@ -0,0 +1,83 @@
+/*
+ * Copyright 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef BINDING_RINGBUFFER_PARCELABLE_H
+#define BINDING_RINGBUFFER_PARCELABLE_H
+
+#include <stdint.h>
+
+#include <binder/Parcelable.h>
+
+#include "binding/AAudioServiceDefinitions.h"
+#include "binding/SharedRegionParcelable.h"
+
+namespace aaudio {
+
+class RingBufferParcelable : public Parcelable {
+public:
+    RingBufferParcelable();
+    virtual ~RingBufferParcelable();
+
+    // TODO This assumes that all three use the same SharedMemoryParcelable
+    void setupMemory(int32_t sharedMemoryIndex,
+                     int32_t dataMemoryOffset,
+                     int32_t dataSizeInBytes,
+                     int32_t readCounterOffset,
+                     int32_t writeCounterOffset,
+                     int32_t counterSizeBytes);
+
+    void setupMemory(int32_t sharedMemoryIndex,
+                     int32_t dataMemoryOffset,
+                     int32_t dataSizeInBytes);
+
+    int32_t getBytesPerFrame();
+
+    void setBytesPerFrame(int32_t bytesPerFrame);
+
+    int32_t getFramesPerBurst();
+
+    void setFramesPerBurst(int32_t framesPerBurst);
+
+    int32_t getCapacityInFrames();
+
+    void setCapacityInFrames(int32_t capacityInFrames);
+
+    /**
+     * The read and write must be symmetric.
+     */
+    virtual status_t writeToParcel(Parcel* parcel) const override;
+
+    virtual status_t readFromParcel(const Parcel* parcel) override;
+
+    aaudio_result_t resolve(SharedMemoryParcelable *memoryParcels, RingBufferDescriptor *descriptor);
+
+    aaudio_result_t validate();
+
+    void dump();
+
+private:
+    SharedRegionParcelable  mReadCounterParcelable;
+    SharedRegionParcelable  mWriteCounterParcelable;
+    SharedRegionParcelable  mDataParcelable;
+    int32_t                 mBytesPerFrame = 0;     // index is in frames
+    int32_t                 mFramesPerBurst = 0;    // for ISOCHRONOUS queues
+    int32_t                 mCapacityInFrames = 0;  // zero if unused
+    RingbufferFlags         mFlags = RingbufferFlags::NONE;
+};
+
+} /* namespace aaudio */
+
+#endif //BINDING_RINGBUFFER_PARCELABLE_H
diff --git a/media/libaaudio/src/binding/SharedMemoryParcelable.cpp b/media/libaaudio/src/binding/SharedMemoryParcelable.cpp
new file mode 100644
index 0000000..1102dec
--- /dev/null
+++ b/media/libaaudio/src/binding/SharedMemoryParcelable.cpp
@@ -0,0 +1,107 @@
+/*
+ * Copyright 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stdint.h>
+
+#include <sys/mman.h>
+#include <aaudio/AAudioDefinitions.h>
+
+#include <binder/Parcelable.h>
+
+#include "binding/SharedMemoryParcelable.h"
+
+using android::NO_ERROR;
+using android::status_t;
+using android::Parcel;
+using android::Parcelable;
+
+using namespace aaudio;
+
+SharedMemoryParcelable::SharedMemoryParcelable() {}
+SharedMemoryParcelable::~SharedMemoryParcelable() {};
+
+void SharedMemoryParcelable::setup(int fd, int32_t sizeInBytes) {
+    mFd = fd;
+    mSizeInBytes = sizeInBytes;
+}
+
+status_t SharedMemoryParcelable::writeToParcel(Parcel* parcel) const {
+    parcel->writeInt32(mSizeInBytes);
+    if (mSizeInBytes > 0) {
+        parcel->writeDupFileDescriptor(mFd);
+    }
+    return NO_ERROR; // TODO check for errors above
+}
+
+status_t SharedMemoryParcelable::readFromParcel(const Parcel* parcel) {
+    parcel->readInt32(&mSizeInBytes);
+    if (mSizeInBytes > 0) {
+        mFd = dup(parcel->readFileDescriptor());
+    }
+    return NO_ERROR; // TODO check for errors above
+}
+
+// TODO Add code to unmmap()
+
+aaudio_result_t SharedMemoryParcelable::resolve(int32_t offsetInBytes, int32_t sizeInBytes,
+                                              void **regionAddressPtr) {
+    if (offsetInBytes < 0) {
+        ALOGE("SharedMemoryParcelable illegal offsetInBytes = %d", offsetInBytes);
+        return AAUDIO_ERROR_OUT_OF_RANGE;
+    } else if ((offsetInBytes + sizeInBytes) > mSizeInBytes) {
+        ALOGE("SharedMemoryParcelable out of range, offsetInBytes = %d, "
+              "sizeInBytes = %d, mSizeInBytes = %d",
+              offsetInBytes, sizeInBytes, mSizeInBytes);
+        return AAUDIO_ERROR_OUT_OF_RANGE;
+    }
+    if (mResolvedAddress == nullptr) {
+        mResolvedAddress = (uint8_t *) mmap(0, mSizeInBytes, PROT_READ|PROT_WRITE,
+                                          MAP_SHARED, mFd, 0);
+        if (mResolvedAddress == nullptr) {
+            ALOGE("SharedMemoryParcelable mmap failed for fd = %d", mFd);
+            return AAUDIO_ERROR_INTERNAL;
+        }
+    }
+    *regionAddressPtr = mResolvedAddress + offsetInBytes;
+    ALOGD("SharedMemoryParcelable mResolvedAddress = %p", mResolvedAddress);
+    ALOGD("SharedMemoryParcelable offset by %d, *regionAddressPtr = %p",
+          offsetInBytes, *regionAddressPtr);
+    return AAUDIO_OK;
+}
+
+int32_t SharedMemoryParcelable::getSizeInBytes() {
+    return mSizeInBytes;
+}
+
+aaudio_result_t SharedMemoryParcelable::validate() {
+    if (mSizeInBytes < 0 || mSizeInBytes >= MAX_MMAP_SIZE_BYTES) {
+        ALOGE("SharedMemoryParcelable invalid mSizeInBytes = %d", mSizeInBytes);
+        return AAUDIO_ERROR_OUT_OF_RANGE;
+    }
+    if (mSizeInBytes > 0) {
+        if (mFd == -1) {
+            ALOGE("SharedMemoryParcelable uninitialized mFd = %d", mFd);
+            return AAUDIO_ERROR_INTERNAL;
+        }
+    }
+    return AAUDIO_OK;
+}
+
+void SharedMemoryParcelable::dump() {
+    ALOGD("SharedMemoryParcelable mFd = %d", mFd);
+    ALOGD("SharedMemoryParcelable mSizeInBytes = %d", mSizeInBytes);
+    ALOGD("SharedMemoryParcelable mResolvedAddress = %p", mResolvedAddress);
+}
diff --git a/media/libaaudio/src/binding/SharedMemoryParcelable.h b/media/libaaudio/src/binding/SharedMemoryParcelable.h
new file mode 100644
index 0000000..7e0bf1a
--- /dev/null
+++ b/media/libaaudio/src/binding/SharedMemoryParcelable.h
@@ -0,0 +1,68 @@
+/*
+ * Copyright 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef BINDING_SHAREDMEMORYPARCELABLE_H
+#define BINDING_SHAREDMEMORYPARCELABLE_H
+
+#include <stdint.h>
+
+#include <sys/mman.h>
+#include <binder/Parcel.h>
+#include <binder/Parcelable.h>
+
+using android::status_t;
+using android::Parcel;
+using android::Parcelable;
+
+namespace aaudio {
+
+// Arbitrary limits for sanity checks. TODO remove after debugging.
+#define MAX_SHARED_MEMORIES (32)
+#define MAX_MMAP_OFFSET_BYTES (32 * 1024 * 8)
+#define MAX_MMAP_SIZE_BYTES (32 * 1024 * 8)
+
+/**
+ * This is a parcelable description of a shared memory referenced by a file descriptor.
+ * It may be divided into several regions.
+ */
+class SharedMemoryParcelable : public Parcelable {
+public:
+    SharedMemoryParcelable();
+    virtual ~SharedMemoryParcelable();
+
+    void setup(int fd, int32_t sizeInBytes);
+
+    virtual status_t writeToParcel(Parcel* parcel) const override;
+
+    virtual status_t readFromParcel(const Parcel* parcel) override;
+
+    aaudio_result_t resolve(int32_t offsetInBytes, int32_t sizeInBytes, void **regionAddressPtr);
+
+    int32_t getSizeInBytes();
+
+    aaudio_result_t validate();
+
+    void dump();
+
+protected:
+    int mFd = -1;
+    int32_t mSizeInBytes = 0;
+    uint8_t *mResolvedAddress = nullptr;
+};
+
+} /* namespace aaudio */
+
+#endif //BINDING_SHAREDMEMORYPARCELABLE_H
diff --git a/media/libaaudio/src/binding/SharedRegionParcelable.cpp b/media/libaaudio/src/binding/SharedRegionParcelable.cpp
new file mode 100644
index 0000000..8ca0023
--- /dev/null
+++ b/media/libaaudio/src/binding/SharedRegionParcelable.cpp
@@ -0,0 +1,101 @@
+/*
+ * Copyright 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stdint.h>
+
+#include <sys/mman.h>
+#include <binder/Parcelable.h>
+
+#include <aaudio/AAudioDefinitions.h>
+
+#include "binding/SharedMemoryParcelable.h"
+#include "binding/SharedRegionParcelable.h"
+
+using android::NO_ERROR;
+using android::status_t;
+using android::Parcel;
+using android::Parcelable;
+
+using namespace aaudio;
+
+SharedRegionParcelable::SharedRegionParcelable() {}
+SharedRegionParcelable::~SharedRegionParcelable() {}
+
+void SharedRegionParcelable::setup(int32_t sharedMemoryIndex,
+                                   int32_t offsetInBytes,
+                                   int32_t sizeInBytes) {
+    mSharedMemoryIndex = sharedMemoryIndex;
+    mOffsetInBytes = offsetInBytes;
+    mSizeInBytes = sizeInBytes;
+}
+
+status_t SharedRegionParcelable::writeToParcel(Parcel* parcel) const {
+    parcel->writeInt32(mSizeInBytes);
+    if (mSizeInBytes > 0) {
+        parcel->writeInt32(mSharedMemoryIndex);
+        parcel->writeInt32(mOffsetInBytes);
+    }
+    return NO_ERROR; // TODO check for errors above
+}
+
+status_t SharedRegionParcelable::readFromParcel(const Parcel* parcel) {
+    parcel->readInt32(&mSizeInBytes);
+    if (mSizeInBytes > 0) {
+        parcel->readInt32(&mSharedMemoryIndex);
+        parcel->readInt32(&mOffsetInBytes);
+    }
+    return NO_ERROR; // TODO check for errors above
+}
+
+aaudio_result_t SharedRegionParcelable::resolve(SharedMemoryParcelable *memoryParcels,
+                                              void **regionAddressPtr) {
+    if (mSizeInBytes == 0) {
+        *regionAddressPtr = nullptr;
+        return AAUDIO_OK;
+    }
+    if (mSharedMemoryIndex < 0) {
+        ALOGE("SharedRegionParcelable invalid mSharedMemoryIndex = %d", mSharedMemoryIndex);
+        return AAUDIO_ERROR_INTERNAL;
+    }
+    SharedMemoryParcelable *memoryParcel = &memoryParcels[mSharedMemoryIndex];
+    return memoryParcel->resolve(mOffsetInBytes, mSizeInBytes, regionAddressPtr);
+}
+
+aaudio_result_t SharedRegionParcelable::validate() {
+    if (mSizeInBytes < 0 || mSizeInBytes >= MAX_MMAP_SIZE_BYTES) {
+        ALOGE("SharedRegionParcelable invalid mSizeInBytes = %d", mSizeInBytes);
+        return AAUDIO_ERROR_OUT_OF_RANGE;
+    }
+    if (mSizeInBytes > 0) {
+        if (mOffsetInBytes < 0 || mOffsetInBytes >= MAX_MMAP_OFFSET_BYTES) {
+            ALOGE("SharedRegionParcelable invalid mOffsetInBytes = %d", mOffsetInBytes);
+            return AAUDIO_ERROR_OUT_OF_RANGE;
+        }
+        if (mSharedMemoryIndex < 0 || mSharedMemoryIndex >= MAX_SHARED_MEMORIES) {
+            ALOGE("SharedRegionParcelable invalid mSharedMemoryIndex = %d", mSharedMemoryIndex);
+            return AAUDIO_ERROR_INTERNAL;
+        }
+    }
+    return AAUDIO_OK;
+}
+
+void SharedRegionParcelable::dump() {
+    ALOGD("SharedRegionParcelable mSizeInBytes = %d -----", mSizeInBytes);
+    if (mSizeInBytes > 0) {
+        ALOGD("SharedRegionParcelable mSharedMemoryIndex = %d", mSharedMemoryIndex);
+        ALOGD("SharedRegionParcelable mOffsetInBytes = %d", mOffsetInBytes);
+    }
+}
diff --git a/media/libaaudio/src/binding/SharedRegionParcelable.h b/media/libaaudio/src/binding/SharedRegionParcelable.h
new file mode 100644
index 0000000..d6c2281
--- /dev/null
+++ b/media/libaaudio/src/binding/SharedRegionParcelable.h
@@ -0,0 +1,60 @@
+/*
+ * Copyright 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef BINDING_SHAREDREGIONPARCELABLE_H
+#define BINDING_SHAREDREGIONPARCELABLE_H
+
+#include <stdint.h>
+
+#include <sys/mman.h>
+#include <binder/Parcelable.h>
+
+#include <aaudio/AAudioDefinitions.h>
+
+#include "binding/SharedMemoryParcelable.h"
+
+using android::status_t;
+using android::Parcel;
+using android::Parcelable;
+
+namespace aaudio {
+
+class SharedRegionParcelable : public Parcelable {
+public:
+    SharedRegionParcelable();
+    virtual ~SharedRegionParcelable();
+
+    void setup(int32_t sharedMemoryIndex, int32_t offsetInBytes, int32_t sizeInBytes);
+
+    virtual status_t writeToParcel(Parcel* parcel) const override;
+
+    virtual status_t readFromParcel(const Parcel* parcel) override;
+
+    aaudio_result_t resolve(SharedMemoryParcelable *memoryParcels, void **regionAddressPtr);
+
+    aaudio_result_t validate();
+
+    void dump();
+
+protected:
+    int32_t mSharedMemoryIndex = -1;
+    int32_t mOffsetInBytes     = 0;
+    int32_t mSizeInBytes       = 0;
+};
+
+} /* namespace aaudio */
+
+#endif //BINDING_SHAREDREGIONPARCELABLE_H
diff --git a/media/libaaudio/src/client/AudioEndpoint.cpp b/media/libaaudio/src/client/AudioEndpoint.cpp
new file mode 100644
index 0000000..47c4774
--- /dev/null
+++ b/media/libaaudio/src/client/AudioEndpoint.cpp
@@ -0,0 +1,194 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "AAudio"
+//#define LOG_NDEBUG 0
+#include <utils/Log.h>
+
+#include <cassert>
+#include <aaudio/AAudioDefinitions.h>
+
+#include "AudioEndpointParcelable.h"
+#include "AudioEndpoint.h"
+#include "AAudioServiceMessage.h"
+
+using namespace android;
+using namespace aaudio;
+
+AudioEndpoint::AudioEndpoint()
+    : mOutputFreeRunning(false)
+    , mDataReadCounter(0)
+    , mDataWriteCounter(0)
+{
+}
+
+AudioEndpoint::~AudioEndpoint()
+{
+}
+
+static void AudioEndpoint_validateQueueDescriptor(const char *type,
+                                                  const RingBufferDescriptor *descriptor) {
+    assert(descriptor->capacityInFrames > 0);
+    assert(descriptor->bytesPerFrame > 1);
+    assert(descriptor->dataAddress != nullptr);
+    ALOGD("AudioEndpoint_validateQueueDescriptor %s, dataAddress at %p ====================",
+          type,
+          descriptor->dataAddress);
+    ALOGD("AudioEndpoint_validateQueueDescriptor  readCounter at %p, writeCounter at %p",
+          descriptor->readCounterAddress,
+          descriptor->writeCounterAddress);
+
+    // Try to READ from the data area.
+    uint8_t value = descriptor->dataAddress[0];
+    ALOGD("AudioEndpoint_validateQueueDescriptor() dataAddress[0] = %d, then try to write",
+        (int) value);
+    // Try to WRITE to the data area.
+    descriptor->dataAddress[0] = value;
+    ALOGD("AudioEndpoint_validateQueueDescriptor() wrote successfully");
+
+    if (descriptor->readCounterAddress) {
+        fifo_counter_t counter = *descriptor->readCounterAddress;
+        ALOGD("AudioEndpoint_validateQueueDescriptor() *readCounterAddress = %d, now write",
+              (int) counter);
+        *descriptor->readCounterAddress = counter;
+        ALOGD("AudioEndpoint_validateQueueDescriptor() wrote readCounterAddress successfully");
+    }
+    if (descriptor->writeCounterAddress) {
+        fifo_counter_t counter = *descriptor->writeCounterAddress;
+        ALOGD("AudioEndpoint_validateQueueDescriptor() *writeCounterAddress = %d, now write",
+              (int) counter);
+        *descriptor->writeCounterAddress = counter;
+        ALOGD("AudioEndpoint_validateQueueDescriptor() wrote writeCounterAddress successfully");
+    }
+}
+
+void AudioEndpoint_validateDescriptor(const EndpointDescriptor *pEndpointDescriptor) {
+    AudioEndpoint_validateQueueDescriptor("msg", &pEndpointDescriptor->upMessageQueueDescriptor);
+    AudioEndpoint_validateQueueDescriptor("data", &pEndpointDescriptor->downDataQueueDescriptor);
+}
+
+aaudio_result_t AudioEndpoint::configure(const EndpointDescriptor *pEndpointDescriptor)
+{
+    aaudio_result_t result = AAUDIO_OK;
+    AudioEndpoint_validateDescriptor(pEndpointDescriptor); // FIXME remove after debugging
+
+    const RingBufferDescriptor *descriptor = &pEndpointDescriptor->upMessageQueueDescriptor;
+    assert(descriptor->bytesPerFrame == sizeof(AAudioServiceMessage));
+    assert(descriptor->readCounterAddress != nullptr);
+    assert(descriptor->writeCounterAddress != nullptr);
+    mUpCommandQueue = new FifoBuffer(
+            descriptor->bytesPerFrame,
+            descriptor->capacityInFrames,
+            descriptor->readCounterAddress,
+            descriptor->writeCounterAddress,
+            descriptor->dataAddress
+    );
+    /* TODO mDownCommandQueue
+    if (descriptor->capacityInFrames > 0) {
+        descriptor = &pEndpointDescriptor->downMessageQueueDescriptor;
+        mDownCommandQueue = new FifoBuffer(
+                descriptor->capacityInFrames,
+                descriptor->bytesPerFrame,
+                descriptor->readCounterAddress,
+                descriptor->writeCounterAddress,
+                descriptor->dataAddress
+        );
+    }
+     */
+    descriptor = &pEndpointDescriptor->downDataQueueDescriptor;
+    assert(descriptor->capacityInFrames > 0);
+    assert(descriptor->bytesPerFrame > 1);
+    assert(descriptor->bytesPerFrame < 4 * 16); // FIXME just for initial debugging
+    assert(descriptor->framesPerBurst > 0);
+    assert(descriptor->framesPerBurst < 8 * 1024); // FIXME just for initial debugging
+    assert(descriptor->dataAddress != nullptr);
+    ALOGD("AudioEndpoint::configure() data framesPerBurst = %d", descriptor->framesPerBurst);
+    ALOGD("AudioEndpoint::configure() data readCounterAddress = %p", descriptor->readCounterAddress);
+    mOutputFreeRunning = descriptor->readCounterAddress == nullptr;
+    ALOGD("AudioEndpoint::configure() mOutputFreeRunning = %d", mOutputFreeRunning ? 1 : 0);
+    int64_t *readCounterAddress = (descriptor->readCounterAddress == nullptr)
+                                  ? &mDataReadCounter
+                                  : descriptor->readCounterAddress;
+    int64_t *writeCounterAddress = (descriptor->writeCounterAddress == nullptr)
+                                  ? &mDataWriteCounter
+                                  : descriptor->writeCounterAddress;
+    mDownDataQueue = new FifoBuffer(
+            descriptor->bytesPerFrame,
+            descriptor->capacityInFrames,
+            readCounterAddress,
+            writeCounterAddress,
+            descriptor->dataAddress
+    );
+    uint32_t threshold = descriptor->capacityInFrames / 2;
+    mDownDataQueue->setThreshold(threshold);
+    return result;
+}
+
+aaudio_result_t AudioEndpoint::readUpCommand(AAudioServiceMessage *commandPtr)
+{
+    return mUpCommandQueue->read(commandPtr, 1);
+}
+
+aaudio_result_t AudioEndpoint::writeDataNow(const void *buffer, int32_t numFrames)
+{
+    return mDownDataQueue->write(buffer, numFrames);
+}
+
+void AudioEndpoint::setDownDataReadCounter(fifo_counter_t framesRead)
+{
+    mDownDataQueue->setReadCounter(framesRead);
+}
+
+fifo_counter_t AudioEndpoint::getDownDataReadCounter()
+{
+    return mDownDataQueue->getReadCounter();
+}
+
+void AudioEndpoint::setDownDataWriteCounter(fifo_counter_t framesRead)
+{
+    mDownDataQueue->setWriteCounter(framesRead);
+}
+
+fifo_counter_t AudioEndpoint::getDownDataWriteCounter()
+{
+    return mDownDataQueue->getWriteCounter();
+}
+
+int32_t AudioEndpoint::setBufferSizeInFrames(int32_t requestedFrames,
+                                            int32_t *actualFrames)
+{
+    if (requestedFrames < ENDPOINT_DATA_QUEUE_SIZE_MIN) {
+        requestedFrames = ENDPOINT_DATA_QUEUE_SIZE_MIN;
+    }
+    mDownDataQueue->setThreshold(requestedFrames);
+    *actualFrames = mDownDataQueue->getThreshold();
+    return AAUDIO_OK;
+}
+
+int32_t AudioEndpoint::getBufferSizeInFrames() const
+{
+    return mDownDataQueue->getThreshold();
+}
+
+int32_t AudioEndpoint::getBufferCapacityInFrames() const
+{
+    return (int32_t)mDownDataQueue->getBufferCapacityInFrames();
+}
+
+int32_t AudioEndpoint::getFullFramesAvailable()
+{
+    return mDownDataQueue->getFifoControllerBase()->getFullFramesAvailable();
+}
diff --git a/media/libaaudio/src/client/AudioEndpoint.h b/media/libaaudio/src/client/AudioEndpoint.h
new file mode 100644
index 0000000..caee488
--- /dev/null
+++ b/media/libaaudio/src/client/AudioEndpoint.h
@@ -0,0 +1,92 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef AAUDIO_AUDIO_ENDPOINT_H
+#define AAUDIO_AUDIO_ENDPOINT_H
+
+#include <aaudio/AAudio.h>
+
+#include "AAudioServiceMessage.h"
+#include "AudioEndpointParcelable.h"
+#include "fifo/FifoBuffer.h"
+
+namespace aaudio {
+
+#define ENDPOINT_DATA_QUEUE_SIZE_MIN   64
+
+/**
+ * A sink for audio.
+ * Used by the client code.
+ */
+class AudioEndpoint {
+
+public:
+    AudioEndpoint();
+    virtual ~AudioEndpoint();
+
+    /**
+     * Configure based on the EndPointDescriptor_t.
+     */
+    aaudio_result_t configure(const EndpointDescriptor *pEndpointDescriptor);
+
+    /**
+     * Read from a command passed up from the Server.
+     * @return 1 if command received, 0 for no command, or negative error.
+     */
+    aaudio_result_t readUpCommand(AAudioServiceMessage *commandPtr);
+
+    /**
+     * Non-blocking write.
+     * @return framesWritten or a negative error code.
+     */
+    aaudio_result_t writeDataNow(const void *buffer, int32_t numFrames);
+
+    /**
+     * Set the read index in the downData queue.
+     * This is needed if the reader is not updating the index itself.
+     */
+    void setDownDataReadCounter(fifo_counter_t framesRead);
+    fifo_counter_t getDownDataReadCounter();
+
+    void setDownDataWriteCounter(fifo_counter_t framesWritten);
+    fifo_counter_t getDownDataWriteCounter();
+
+    /**
+     * The result is not valid until after configure() is called.
+     *
+     * @return true if the output buffer read position is not updated, eg. DMA
+     */
+    bool isOutputFreeRunning() const { return mOutputFreeRunning; }
+
+    int32_t setBufferSizeInFrames(int32_t requestedFrames,
+                                  int32_t *actualFrames);
+    int32_t getBufferSizeInFrames() const;
+
+    int32_t getBufferCapacityInFrames() const;
+
+    int32_t getFullFramesAvailable();
+
+private:
+    FifoBuffer   * mUpCommandQueue;
+    FifoBuffer   * mDownDataQueue;
+    bool           mOutputFreeRunning;
+    fifo_counter_t mDataReadCounter; // only used if free-running
+    fifo_counter_t mDataWriteCounter; // only used if free-running
+};
+
+} // namespace aaudio
+
+#endif //AAUDIO_AUDIO_ENDPOINT_H
diff --git a/media/libaaudio/src/client/AudioStreamInternal.cpp b/media/libaaudio/src/client/AudioStreamInternal.cpp
new file mode 100644
index 0000000..54f4870
--- /dev/null
+++ b/media/libaaudio/src/client/AudioStreamInternal.cpp
@@ -0,0 +1,569 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "AAudio"
+//#define LOG_NDEBUG 0
+#include <utils/Log.h>
+
+#include <stdint.h>
+#include <assert.h>
+
+#include <binder/IServiceManager.h>
+#include <utils/Mutex.h>
+
+#include <aaudio/AAudio.h>
+
+#include "AudioClock.h"
+#include "AudioEndpointParcelable.h"
+#include "binding/AAudioStreamRequest.h"
+#include "binding/AAudioStreamConfiguration.h"
+#include "binding/IAAudioService.h"
+#include "binding/AAudioServiceMessage.h"
+
+#include "core/AudioStreamBuilder.h"
+#include "AudioStreamInternal.h"
+
+#define LOG_TIMESTAMPS   0
+
+using android::String16;
+using android::IServiceManager;
+using android::defaultServiceManager;
+using android::interface_cast;
+using android::Mutex;
+
+using namespace aaudio;
+
+static android::Mutex gServiceLock;
+static sp<IAAudioService>  gAAudioService;
+
+#define AAUDIO_SERVICE_NAME   "AAudioService"
+
+// Helper function to get access to the "AAudioService" service.
+// This code was modeled after frameworks/av/media/libaudioclient/AudioSystem.cpp
+static const sp<IAAudioService> getAAudioService() {
+    sp<IBinder> binder;
+    Mutex::Autolock _l(gServiceLock);
+    if (gAAudioService == 0) {
+        sp<IServiceManager> sm = defaultServiceManager();
+        // Try several times to get the service.
+        int retries = 4;
+        do {
+            binder = sm->getService(String16(AAUDIO_SERVICE_NAME)); // This will wait a while.
+            if (binder != 0) {
+                break;
+            }
+        } while (retries-- > 0);
+
+        if (binder != 0) {
+            // TODO Add linkToDeath() like in frameworks/av/media/libaudioclient/AudioSystem.cpp
+            // TODO Create a DeathRecipient that disconnects all active streams.
+            gAAudioService = interface_cast<IAAudioService>(binder);
+        } else {
+            ALOGE("AudioStreamInternal could not get %s", AAUDIO_SERVICE_NAME);
+        }
+    }
+    return gAAudioService;
+}
+
+AudioStreamInternal::AudioStreamInternal()
+        : AudioStream()
+        , mClockModel()
+        , mAudioEndpoint()
+        , mServiceStreamHandle(AAUDIO_HANDLE_INVALID)
+        , mFramesPerBurst(16)
+{
+}
+
+AudioStreamInternal::~AudioStreamInternal() {
+}
+
+aaudio_result_t AudioStreamInternal::open(const AudioStreamBuilder &builder) {
+
+    const sp<IAAudioService>& service = getAAudioService();
+    if (service == 0) return AAUDIO_ERROR_NO_SERVICE;
+
+    aaudio_result_t result = AAUDIO_OK;
+    AAudioStreamRequest request;
+    AAudioStreamConfiguration configuration;
+
+    result = AudioStream::open(builder);
+    if (result < 0) {
+        return result;
+    }
+
+    // Build the request to send to the server.
+    request.setUserId(getuid());
+    request.setProcessId(getpid());
+    request.getConfiguration().setDeviceId(getDeviceId());
+    request.getConfiguration().setSampleRate(getSampleRate());
+    request.getConfiguration().setSamplesPerFrame(getSamplesPerFrame());
+    request.getConfiguration().setAudioFormat(getFormat());
+    request.getConfiguration().setBufferCapacity(builder.getBufferCapacity());
+    request.dump();
+
+    mServiceStreamHandle = service->openStream(request, configuration);
+    ALOGD("AudioStreamInternal.open(): openStream returned mServiceStreamHandle = 0x%08X",
+         (unsigned int)mServiceStreamHandle);
+    if (mServiceStreamHandle < 0) {
+        result = mServiceStreamHandle;
+        ALOGE("AudioStreamInternal.open(): acquireRealtimeStream aaudio_result_t = 0x%08X", result);
+    } else {
+        result = configuration.validate();
+        if (result != AAUDIO_OK) {
+            close();
+            return result;
+        }
+        // Save results of the open.
+        setSampleRate(configuration.getSampleRate());
+        setSamplesPerFrame(configuration.getSamplesPerFrame());
+        setFormat(configuration.getAudioFormat());
+
+        aaudio::AudioEndpointParcelable parcelable;
+        result = service->getStreamDescription(mServiceStreamHandle, parcelable);
+        if (result != AAUDIO_OK) {
+            ALOGE("AudioStreamInternal.open(): getStreamDescriptor returns %d", result);
+            service->closeStream(mServiceStreamHandle);
+            return result;
+        }
+        // resolve parcelable into a descriptor
+        parcelable.resolve(&mEndpointDescriptor);
+
+        // Configure endpoint based on descriptor.
+        mAudioEndpoint.configure(&mEndpointDescriptor);
+
+        mFramesPerBurst = mEndpointDescriptor.downDataQueueDescriptor.framesPerBurst;
+        assert(mFramesPerBurst >= 16);
+        assert(mEndpointDescriptor.downDataQueueDescriptor.capacityInFrames < 10 * 1024);
+
+        mClockModel.setSampleRate(getSampleRate());
+        mClockModel.setFramesPerBurst(mFramesPerBurst);
+
+        setState(AAUDIO_STREAM_STATE_OPEN);
+    }
+    return result;
+}
+
+aaudio_result_t AudioStreamInternal::close() {
+    ALOGD("AudioStreamInternal.close(): mServiceStreamHandle = 0x%08X", mServiceStreamHandle);
+    if (mServiceStreamHandle != AAUDIO_HANDLE_INVALID) {
+        aaudio_handle_t serviceStreamHandle = mServiceStreamHandle;
+        mServiceStreamHandle = AAUDIO_HANDLE_INVALID;
+        const sp<IAAudioService>& aaudioService = getAAudioService();
+        if (aaudioService == 0) return AAUDIO_ERROR_NO_SERVICE;
+        aaudioService->closeStream(serviceStreamHandle);
+        return AAUDIO_OK;
+    } else {
+        return AAUDIO_ERROR_INVALID_HANDLE;
+    }
+}
+
+aaudio_result_t AudioStreamInternal::requestStart()
+{
+    int64_t startTime;
+    ALOGD("AudioStreamInternal(): start()");
+    if (mServiceStreamHandle == AAUDIO_HANDLE_INVALID) {
+        return AAUDIO_ERROR_INVALID_STATE;
+    }
+    const sp<IAAudioService>& aaudioService = getAAudioService();
+    if (aaudioService == 0) return AAUDIO_ERROR_NO_SERVICE;
+    startTime = AudioClock::getNanoseconds();
+    mClockModel.start(startTime);
+    processTimestamp(0, startTime);
+    setState(AAUDIO_STREAM_STATE_STARTING);
+    return aaudioService->startStream(mServiceStreamHandle);
+}
+
+aaudio_result_t AudioStreamInternal::requestPause()
+{
+    ALOGD("AudioStreamInternal(): pause()");
+    if (mServiceStreamHandle == AAUDIO_HANDLE_INVALID) {
+        return AAUDIO_ERROR_INVALID_STATE;
+    }
+    const sp<IAAudioService>& aaudioService = getAAudioService();
+    if (aaudioService == 0) return AAUDIO_ERROR_NO_SERVICE;
+    mClockModel.stop(AudioClock::getNanoseconds());
+    setState(AAUDIO_STREAM_STATE_PAUSING);
+    return aaudioService->pauseStream(mServiceStreamHandle);
+}
+
+aaudio_result_t AudioStreamInternal::requestFlush() {
+    ALOGD("AudioStreamInternal(): flush()");
+    if (mServiceStreamHandle == AAUDIO_HANDLE_INVALID) {
+        return AAUDIO_ERROR_INVALID_STATE;
+    }
+    const sp<IAAudioService>& aaudioService = getAAudioService();
+    if (aaudioService == 0) return AAUDIO_ERROR_NO_SERVICE;
+setState(AAUDIO_STREAM_STATE_FLUSHING);
+    return aaudioService->flushStream(mServiceStreamHandle);
+}
+
+void AudioStreamInternal::onFlushFromServer() {
+    ALOGD("AudioStreamInternal(): onFlushFromServer()");
+    int64_t readCounter = mAudioEndpoint.getDownDataReadCounter();
+    int64_t writeCounter = mAudioEndpoint.getDownDataWriteCounter();
+    // Bump offset so caller does not see the retrograde motion in getFramesRead().
+    int64_t framesFlushed = writeCounter - readCounter;
+    mFramesOffsetFromService += framesFlushed;
+    // Flush written frames by forcing writeCounter to readCounter.
+    // This is because we cannot move the read counter in the hardware.
+    mAudioEndpoint.setDownDataWriteCounter(readCounter);
+}
+
+aaudio_result_t AudioStreamInternal::requestStop()
+{
+    // TODO better implementation of requestStop()
+    aaudio_result_t result = requestPause();
+    if (result == AAUDIO_OK) {
+        aaudio_stream_state_t state;
+        result = waitForStateChange(AAUDIO_STREAM_STATE_PAUSING,
+                                    &state,
+                                    500 * AAUDIO_NANOS_PER_MILLISECOND);// TODO temporary code
+        if (result == AAUDIO_OK) {
+            result = requestFlush();
+        }
+    }
+    return result;
+}
+
+aaudio_result_t AudioStreamInternal::registerThread() {
+    ALOGD("AudioStreamInternal(): registerThread()");
+    if (mServiceStreamHandle == AAUDIO_HANDLE_INVALID) {
+        return AAUDIO_ERROR_INVALID_STATE;
+    }
+    const sp<IAAudioService>& aaudioService = getAAudioService();
+    if (aaudioService == 0) return AAUDIO_ERROR_NO_SERVICE;
+    return aaudioService->registerAudioThread(mServiceStreamHandle,
+                                         gettid(),
+                                         getPeriodNanoseconds());
+}
+
+aaudio_result_t AudioStreamInternal::unregisterThread() {
+    ALOGD("AudioStreamInternal(): unregisterThread()");
+    if (mServiceStreamHandle == AAUDIO_HANDLE_INVALID) {
+        return AAUDIO_ERROR_INVALID_STATE;
+    }
+    const sp<IAAudioService>& aaudioService = getAAudioService();
+    if (aaudioService == 0) return AAUDIO_ERROR_NO_SERVICE;
+    return aaudioService->unregisterAudioThread(mServiceStreamHandle, gettid());
+}
+
+// TODO use aaudio_clockid_t all the way down to AudioClock
+aaudio_result_t AudioStreamInternal::getTimestamp(clockid_t clockId,
+                           int64_t *framePosition,
+                           int64_t *timeNanoseconds) {
+// TODO implement using real HAL
+    int64_t time = AudioClock::getNanoseconds();
+    *framePosition = mClockModel.convertTimeToPosition(time);
+    *timeNanoseconds = time + (10 * AAUDIO_NANOS_PER_MILLISECOND); // Fake hardware delay
+    return AAUDIO_OK;
+}
+
+aaudio_result_t AudioStreamInternal::updateState() {
+    return processCommands();
+}
+
+#if LOG_TIMESTAMPS
+static void AudioStreamInternal_LogTimestamp(AAudioServiceMessage &command) {
+    static int64_t oldPosition = 0;
+    static int64_t oldTime = 0;
+    int64_t framePosition = command.timestamp.position;
+    int64_t nanoTime = command.timestamp.timestamp;
+    ALOGD("AudioStreamInternal() timestamp says framePosition = %08lld at nanoTime %llu",
+         (long long) framePosition,
+         (long long) nanoTime);
+    int64_t nanosDelta = nanoTime - oldTime;
+    if (nanosDelta > 0 && oldTime > 0) {
+        int64_t framesDelta = framePosition - oldPosition;
+        int64_t rate = (framesDelta * AAUDIO_NANOS_PER_SECOND) / nanosDelta;
+        ALOGD("AudioStreamInternal() - framesDelta = %08lld", (long long) framesDelta);
+        ALOGD("AudioStreamInternal() - nanosDelta = %08lld", (long long) nanosDelta);
+        ALOGD("AudioStreamInternal() - measured rate = %llu", (unsigned long long) rate);
+    }
+    oldPosition = framePosition;
+    oldTime = nanoTime;
+}
+#endif
+
+aaudio_result_t AudioStreamInternal::onTimestampFromServer(AAudioServiceMessage *message) {
+    int64_t framePosition = 0;
+#if LOG_TIMESTAMPS
+    AudioStreamInternal_LogTimestamp(command);
+#endif
+    framePosition = message->timestamp.position;
+    processTimestamp(framePosition, message->timestamp.timestamp);
+    return AAUDIO_OK;
+}
+
+aaudio_result_t AudioStreamInternal::onEventFromServer(AAudioServiceMessage *message) {
+    aaudio_result_t result = AAUDIO_OK;
+    ALOGD("processCommands() got event %d", message->event.event);
+    switch (message->event.event) {
+        case AAUDIO_SERVICE_EVENT_STARTED:
+            ALOGD("processCommands() got AAUDIO_SERVICE_EVENT_STARTED");
+            setState(AAUDIO_STREAM_STATE_STARTED);
+            break;
+        case AAUDIO_SERVICE_EVENT_PAUSED:
+            ALOGD("processCommands() got AAUDIO_SERVICE_EVENT_PAUSED");
+            setState(AAUDIO_STREAM_STATE_PAUSED);
+            break;
+        case AAUDIO_SERVICE_EVENT_FLUSHED:
+            ALOGD("processCommands() got AAUDIO_SERVICE_EVENT_FLUSHED");
+            setState(AAUDIO_STREAM_STATE_FLUSHED);
+            onFlushFromServer();
+            break;
+        case AAUDIO_SERVICE_EVENT_CLOSED:
+            ALOGD("processCommands() got AAUDIO_SERVICE_EVENT_CLOSED");
+            setState(AAUDIO_STREAM_STATE_CLOSED);
+            break;
+        case AAUDIO_SERVICE_EVENT_DISCONNECTED:
+            result = AAUDIO_ERROR_DISCONNECTED;
+            ALOGW("WARNING - processCommands() AAUDIO_SERVICE_EVENT_DISCONNECTED");
+            break;
+        default:
+            ALOGW("WARNING - processCommands() Unrecognized event = %d",
+                 (int) message->event.event);
+            break;
+    }
+    return result;
+}
+
+// Process all the commands coming from the server.
+aaudio_result_t AudioStreamInternal::processCommands() {
+    aaudio_result_t result = AAUDIO_OK;
+
+    while (result == AAUDIO_OK) {
+        AAudioServiceMessage message;
+        if (mAudioEndpoint.readUpCommand(&message) != 1) {
+            break; // no command this time, no problem
+        }
+        switch (message.what) {
+        case AAudioServiceMessage::code::TIMESTAMP:
+            result = onTimestampFromServer(&message);
+            break;
+
+        case AAudioServiceMessage::code::EVENT:
+            result = onEventFromServer(&message);
+            break;
+
+        default:
+            ALOGW("WARNING - AudioStreamInternal::processCommands() Unrecognized what = %d",
+                 (int) message.what);
+            result = AAUDIO_ERROR_UNEXPECTED_VALUE;
+            break;
+        }
+    }
+    return result;
+}
+
+// Write the data, block if needed and timeoutMillis > 0
+aaudio_result_t AudioStreamInternal::write(const void *buffer, int32_t numFrames,
+                                         int64_t timeoutNanoseconds)
+{
+    aaudio_result_t result = AAUDIO_OK;
+    uint8_t* source = (uint8_t*)buffer;
+    int64_t currentTimeNanos = AudioClock::getNanoseconds();
+    int64_t deadlineNanos = currentTimeNanos + timeoutNanoseconds;
+    int32_t framesLeft = numFrames;
+//    ALOGD("AudioStreamInternal::write(%p, %d) at time %08llu , mState = %d ------------------",
+//         buffer, numFrames, (unsigned long long) currentTimeNanos, mState);
+
+    // Write until all the data has been written or until a timeout occurs.
+    while (framesLeft > 0) {
+        // The call to writeNow() will not block. It will just write as much as it can.
+        int64_t wakeTimeNanos = 0;
+        aaudio_result_t framesWritten = writeNow(source, framesLeft,
+                                               currentTimeNanos, &wakeTimeNanos);
+//        ALOGD("AudioStreamInternal::write() writeNow() framesLeft = %d --> framesWritten = %d", framesLeft, framesWritten);
+        if (framesWritten < 0) {
+            result = framesWritten;
+            break;
+        }
+        framesLeft -= (int32_t) framesWritten;
+        source += framesWritten * getBytesPerFrame();
+
+        // Should we block?
+        if (timeoutNanoseconds == 0) {
+            break; // don't block
+        } else if (framesLeft > 0) {
+            //ALOGD("AudioStreamInternal:: original wakeTimeNanos %lld", (long long) wakeTimeNanos);
+            // clip the wake time to something reasonable
+            if (wakeTimeNanos < currentTimeNanos) {
+                wakeTimeNanos = currentTimeNanos;
+            }
+            if (wakeTimeNanos > deadlineNanos) {
+                // If we time out, just return the framesWritten so far.
+                ALOGE("AudioStreamInternal::write(): timed out after %lld nanos", (long long) timeoutNanoseconds);
+                break;
+            }
+
+            //ALOGD("AudioStreamInternal:: sleep until %lld, dur = %lld", (long long) wakeTimeNanos,
+            //        (long long) (wakeTimeNanos - currentTimeNanos));
+            AudioClock::sleepForNanos(wakeTimeNanos - currentTimeNanos);
+            currentTimeNanos = AudioClock::getNanoseconds();
+        }
+    }
+
+    // return error or framesWritten
+    return (result < 0) ? result : numFrames - framesLeft;
+}
+
+// Write as much data as we can without blocking.
+aaudio_result_t AudioStreamInternal::writeNow(const void *buffer, int32_t numFrames,
+                                         int64_t currentNanoTime, int64_t *wakeTimePtr) {
+    {
+        aaudio_result_t result = processCommands();
+        if (result != AAUDIO_OK) {
+            return result;
+        }
+    }
+
+    if (mAudioEndpoint.isOutputFreeRunning()) {
+        // Update data queue based on the timing model.
+        int64_t estimatedReadCounter = mClockModel.convertTimeToPosition(currentNanoTime);
+        mAudioEndpoint.setDownDataReadCounter(estimatedReadCounter);
+        // If the read index passed the write index then consider it an underrun.
+        if (mAudioEndpoint.getFullFramesAvailable() < 0) {
+            mXRunCount++;
+        }
+    }
+    // TODO else query from endpoint cuz set by actual reader, maybe
+
+    // Write some data to the buffer.
+    int32_t framesWritten = mAudioEndpoint.writeDataNow(buffer, numFrames);
+    if (framesWritten > 0) {
+        incrementFramesWritten(framesWritten);
+    }
+    //ALOGD("AudioStreamInternal::writeNow() - tried to write %d frames, wrote %d",
+    //    numFrames, framesWritten);
+
+    // Calculate an ideal time to wake up.
+    if (wakeTimePtr != nullptr && framesWritten >= 0) {
+        // By default wake up a few milliseconds from now.  // TODO review
+        int64_t wakeTime = currentNanoTime + (2 * AAUDIO_NANOS_PER_MILLISECOND);
+        switch (getState()) {
+            case AAUDIO_STREAM_STATE_OPEN:
+            case AAUDIO_STREAM_STATE_STARTING:
+                if (framesWritten != 0) {
+                    // Don't wait to write more data. Just prime the buffer.
+                    wakeTime = currentNanoTime;
+                }
+                break;
+            case AAUDIO_STREAM_STATE_STARTED:   // When do we expect the next read burst to occur?
+                {
+                    uint32_t burstSize = mFramesPerBurst;
+                    if (burstSize < 32) {
+                        burstSize = 32; // TODO review
+                    }
+
+                    uint64_t nextReadPosition = mAudioEndpoint.getDownDataReadCounter() + burstSize;
+                    wakeTime = mClockModel.convertPositionToTime(nextReadPosition);
+                }
+                break;
+            default:
+                break;
+        }
+        *wakeTimePtr = wakeTime;
+
+    }
+//    ALOGD("AudioStreamInternal::writeNow finished: now = %llu, read# = %llu, wrote# = %llu",
+//         (unsigned long long)currentNanoTime,
+//         (unsigned long long)mAudioEndpoint.getDownDataReadCounter(),
+//         (unsigned long long)mAudioEndpoint.getDownDataWriteCounter());
+    return framesWritten;
+}
+
+aaudio_result_t AudioStreamInternal::waitForStateChange(aaudio_stream_state_t currentState,
+                                                      aaudio_stream_state_t *nextState,
+                                                      int64_t timeoutNanoseconds)
+
+{
+    aaudio_result_t result = processCommands();
+//    ALOGD("AudioStreamInternal::waitForStateChange() - processCommands() returned %d", result);
+    if (result != AAUDIO_OK) {
+        return result;
+    }
+    // TODO replace this polling with a timed sleep on a futex on the message queue
+    int32_t durationNanos = 5 * AAUDIO_NANOS_PER_MILLISECOND;
+    aaudio_stream_state_t state = getState();
+//    ALOGD("AudioStreamInternal::waitForStateChange() - state = %d", state);
+    while (state == currentState && timeoutNanoseconds > 0) {
+        // TODO use futex from service message queue
+        if (durationNanos > timeoutNanoseconds) {
+            durationNanos = timeoutNanoseconds;
+        }
+        AudioClock::sleepForNanos(durationNanos);
+        timeoutNanoseconds -= durationNanos;
+
+        result = processCommands();
+        if (result != AAUDIO_OK) {
+            return result;
+        }
+
+        state = getState();
+//        ALOGD("AudioStreamInternal::waitForStateChange() - state = %d", state);
+    }
+    if (nextState != nullptr) {
+        *nextState = state;
+    }
+    return (state == currentState) ? AAUDIO_ERROR_TIMEOUT : AAUDIO_OK;
+}
+
+
+void AudioStreamInternal::processTimestamp(uint64_t position, int64_t time) {
+    mClockModel.processTimestamp( position, time);
+}
+
+aaudio_result_t AudioStreamInternal::setBufferSize(int32_t requestedFrames) {
+    int32_t actualFrames = 0;
+    aaudio_result_t result = mAudioEndpoint.setBufferSizeInFrames(requestedFrames, &actualFrames);
+    if (result < 0) {
+        return result;
+    } else {
+        return (aaudio_result_t) actualFrames;
+    }
+}
+
+int32_t AudioStreamInternal::getBufferSize() const
+{
+    return mAudioEndpoint.getBufferSizeInFrames();
+}
+
+int32_t AudioStreamInternal::getBufferCapacity() const
+{
+    return mAudioEndpoint.getBufferCapacityInFrames();
+}
+
+int32_t AudioStreamInternal::getFramesPerBurst() const
+{
+    return mEndpointDescriptor.downDataQueueDescriptor.framesPerBurst;
+}
+
+int64_t AudioStreamInternal::getFramesRead()
+{
+    int64_t framesRead =
+            mClockModel.convertTimeToPosition(AudioClock::getNanoseconds())
+            + mFramesOffsetFromService;
+    // Prevent retrograde motion.
+    if (framesRead < mLastFramesRead) {
+        framesRead = mLastFramesRead;
+    } else {
+        mLastFramesRead = framesRead;
+    }
+    ALOGD("AudioStreamInternal::getFramesRead() returns %lld", (long long)framesRead);
+    return framesRead;
+}
+
+// TODO implement getTimestamp
diff --git a/media/libaaudio/src/client/AudioStreamInternal.h b/media/libaaudio/src/client/AudioStreamInternal.h
new file mode 100644
index 0000000..6f3a7ac
--- /dev/null
+++ b/media/libaaudio/src/client/AudioStreamInternal.h
@@ -0,0 +1,127 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef AAUDIO_AUDIOSTREAMINTERNAL_H
+#define AAUDIO_AUDIOSTREAMINTERNAL_H
+
+#include <stdint.h>
+#include <aaudio/AAudio.h>
+
+#include "binding/IAAudioService.h"
+#include "binding/AudioEndpointParcelable.h"
+#include "client/IsochronousClockModel.h"
+#include "client/AudioEndpoint.h"
+#include "core/AudioStream.h"
+
+using android::sp;
+using android::IAAudioService;
+
+namespace aaudio {
+
+// A stream that talks to the AAudioService or directly to a HAL.
+class AudioStreamInternal : public AudioStream {
+
+public:
+    AudioStreamInternal();
+    virtual ~AudioStreamInternal();
+
+    // =========== Begin ABSTRACT methods ===========================
+    virtual aaudio_result_t requestStart() override;
+
+    virtual aaudio_result_t requestPause() override;
+
+    virtual aaudio_result_t requestFlush() override;
+
+    virtual aaudio_result_t requestStop() override;
+
+    // TODO use aaudio_clockid_t all the way down to AudioClock
+    virtual aaudio_result_t getTimestamp(clockid_t clockId,
+                                       int64_t *framePosition,
+                                       int64_t *timeNanoseconds) override;
+
+
+    virtual aaudio_result_t updateState() override;
+    // =========== End ABSTRACT methods ===========================
+
+    virtual aaudio_result_t open(const AudioStreamBuilder &builder) override;
+
+    virtual aaudio_result_t close() override;
+
+    virtual aaudio_result_t write(const void *buffer,
+                             int32_t numFrames,
+                             int64_t timeoutNanoseconds) override;
+
+    virtual aaudio_result_t waitForStateChange(aaudio_stream_state_t currentState,
+                                          aaudio_stream_state_t *nextState,
+                                          int64_t timeoutNanoseconds) override;
+
+    virtual aaudio_result_t setBufferSize(int32_t requestedFrames) override;
+
+    virtual int32_t getBufferSize() const override;
+
+    virtual int32_t getBufferCapacity() const override;
+
+    virtual int32_t getFramesPerBurst() const override;
+
+    virtual int64_t getFramesRead() override;
+
+    virtual int32_t getXRunCount() const override {
+        return mXRunCount;
+    }
+
+    virtual aaudio_result_t registerThread() override;
+
+    virtual aaudio_result_t unregisterThread() override;
+
+protected:
+
+    aaudio_result_t processCommands();
+
+/**
+ * Low level write that will not block. It will just write as much as it can.
+ *
+ * It passed back a recommended time to wake up if wakeTimePtr is not NULL.
+ *
+ * @return the number of frames written or a negative error code.
+ */
+    virtual aaudio_result_t writeNow(const void *buffer,
+                                int32_t numFrames,
+                                int64_t currentTimeNanos,
+                                int64_t *wakeTimePtr);
+
+    void onFlushFromServer();
+
+    aaudio_result_t onEventFromServer(AAudioServiceMessage *message);
+
+    aaudio_result_t onTimestampFromServer(AAudioServiceMessage *message);
+
+private:
+    IsochronousClockModel    mClockModel;
+    AudioEndpoint            mAudioEndpoint;
+    aaudio_handle_t          mServiceStreamHandle;
+    EndpointDescriptor       mEndpointDescriptor;
+    // Offset from underlying frame position.
+    int64_t                  mFramesOffsetFromService = 0;
+    int64_t                  mLastFramesRead = 0;
+    int32_t                  mFramesPerBurst;
+    int32_t                  mXRunCount = 0;
+
+    void processTimestamp(uint64_t position, int64_t time);
+};
+
+} /* namespace aaudio */
+
+#endif //AAUDIO_AUDIOSTREAMINTERNAL_H
diff --git a/media/libaaudio/src/client/IsochronousClockModel.cpp b/media/libaaudio/src/client/IsochronousClockModel.cpp
new file mode 100644
index 0000000..4c8aabc
--- /dev/null
+++ b/media/libaaudio/src/client/IsochronousClockModel.cpp
@@ -0,0 +1,177 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "AAudio"
+//#define LOG_NDEBUG 0
+#include <utils/Log.h>
+
+#include <stdint.h>
+#include <aaudio/AAudioDefinitions.h>
+
+#include "utility/AudioClock.h"
+#include "IsochronousClockModel.h"
+
+#define MIN_LATENESS_NANOS (10 * AAUDIO_NANOS_PER_MICROSECOND)
+
+using namespace android;
+using namespace aaudio;
+
+IsochronousClockModel::IsochronousClockModel()
+        : mMarkerFramePosition(0)
+        , mMarkerNanoTime(0)
+        , mSampleRate(48000)
+        , mFramesPerBurst(64)
+        , mMaxLatenessInNanos(0)
+        , mState(STATE_STOPPED)
+{
+}
+
+IsochronousClockModel::~IsochronousClockModel() {
+}
+
+void IsochronousClockModel::start(int64_t nanoTime)
+{
+    mMarkerNanoTime = nanoTime;
+    mState = STATE_STARTING;
+}
+
+void IsochronousClockModel::stop(int64_t nanoTime)
+{
+    mMarkerNanoTime = nanoTime;
+    mMarkerFramePosition = convertTimeToPosition(nanoTime); // TODO should we do this?
+    mState = STATE_STOPPED;
+}
+
+void IsochronousClockModel::processTimestamp(int64_t framePosition,
+                                             int64_t nanoTime) {
+    int64_t framesDelta = framePosition - mMarkerFramePosition;
+    int64_t nanosDelta = nanoTime - mMarkerNanoTime;
+    if (nanosDelta < 1000) {
+        return;
+    }
+
+//    ALOGI("processTimestamp() - mMarkerFramePosition = %lld at mMarkerNanoTime %llu",
+//         (long long)mMarkerFramePosition,
+//         (long long)mMarkerNanoTime);
+//    ALOGI("processTimestamp() - framePosition = %lld at nanoTime %llu",
+//         (long long)framePosition,
+//         (long long)nanoTime);
+
+    int64_t expectedNanosDelta = convertDeltaPositionToTime(framesDelta);
+//    ALOGI("processTimestamp() - expectedNanosDelta = %lld, nanosDelta = %llu",
+//         (long long)expectedNanosDelta,
+//         (long long)nanosDelta);
+
+//    ALOGI("processTimestamp() - mSampleRate = %d", mSampleRate);
+//    ALOGI("processTimestamp() - mState = %d", mState);
+    switch (mState) {
+    case STATE_STOPPED:
+        break;
+    case STATE_STARTING:
+        mMarkerFramePosition = framePosition;
+        mMarkerNanoTime = nanoTime;
+        mState = STATE_SYNCING;
+        break;
+    case STATE_SYNCING:
+        // This will handle a burst of rapid consumption in the beginning.
+        if (nanosDelta < expectedNanosDelta) {
+            mMarkerFramePosition = framePosition;
+            mMarkerNanoTime = nanoTime;
+        } else {
+            ALOGI("processTimestamp() - advance to STATE_RUNNING");
+            mState = STATE_RUNNING;
+        }
+        break;
+    case STATE_RUNNING:
+        if (nanosDelta < expectedNanosDelta) {
+            // Earlier than expected timestamp.
+            // This data is probably more accurate so use it.
+            // or we may be drifting due to a slow HW clock.
+            mMarkerFramePosition = framePosition;
+            mMarkerNanoTime = nanoTime;
+            ALOGI("processTimestamp() - STATE_RUNNING - %d < %d micros - EARLY",
+                 (int) (nanosDelta / 1000), (int)(expectedNanosDelta / 1000));
+        } else if (nanosDelta > (expectedNanosDelta + mMaxLatenessInNanos)) {
+            // Later than expected timestamp.
+            mMarkerFramePosition = framePosition;
+            mMarkerNanoTime = nanoTime - mMaxLatenessInNanos;
+            ALOGI("processTimestamp() - STATE_RUNNING - %d > %d + %d micros - LATE",
+                 (int) (nanosDelta / 1000), (int)(expectedNanosDelta / 1000),
+                 (int) (mMaxLatenessInNanos / 1000));
+        }
+        break;
+    default:
+        break;
+    }
+}
+
+void IsochronousClockModel::setSampleRate(int32_t sampleRate) {
+    mSampleRate = sampleRate;
+    update();
+}
+
+void IsochronousClockModel::setFramesPerBurst(int32_t framesPerBurst) {
+    mFramesPerBurst = framesPerBurst;
+    update();
+}
+
+void IsochronousClockModel::update() {
+    int64_t nanosLate = convertDeltaPositionToTime(mFramesPerBurst); // uses mSampleRate
+    mMaxLatenessInNanos = (nanosLate > MIN_LATENESS_NANOS) ? nanosLate : MIN_LATENESS_NANOS;
+}
+
+int64_t IsochronousClockModel::convertDeltaPositionToTime(
+        int64_t framesDelta) const {
+    return (AAUDIO_NANOS_PER_SECOND * framesDelta) / mSampleRate;
+}
+
+int64_t IsochronousClockModel::convertDeltaTimeToPosition(int64_t nanosDelta) const {
+    return (mSampleRate * nanosDelta) / AAUDIO_NANOS_PER_SECOND;
+}
+
+int64_t IsochronousClockModel::convertPositionToTime(
+        int64_t framePosition) const {
+    if (mState == STATE_STOPPED) {
+        return mMarkerNanoTime;
+    }
+    int64_t nextBurstIndex = (framePosition + mFramesPerBurst - 1) / mFramesPerBurst;
+    int64_t nextBurstPosition = mFramesPerBurst * nextBurstIndex;
+    int64_t framesDelta = nextBurstPosition - mMarkerFramePosition;
+    int64_t nanosDelta = convertDeltaPositionToTime(framesDelta);
+    int64_t time = (int64_t) (mMarkerNanoTime + nanosDelta);
+//    ALOGI("IsochronousClockModel::convertPositionToTime: pos = %llu --> time = %llu",
+//         (unsigned long long)framePosition,
+//         (unsigned long long)time);
+    return time;
+}
+
+int64_t IsochronousClockModel::convertTimeToPosition(
+        int64_t nanoTime) const {
+    if (mState == STATE_STOPPED) {
+        return mMarkerFramePosition;
+    }
+    int64_t nanosDelta = nanoTime - mMarkerNanoTime;
+    int64_t framesDelta = convertDeltaTimeToPosition(nanosDelta);
+    int64_t nextBurstPosition = mMarkerFramePosition + framesDelta;
+    int64_t nextBurstIndex = nextBurstPosition / mFramesPerBurst;
+    int64_t position = nextBurstIndex * mFramesPerBurst;
+//    ALOGI("IsochronousClockModel::convertTimeToPosition: time = %llu --> pos = %llu",
+//         (unsigned long long)nanoTime,
+//         (unsigned long long)position);
+//    ALOGI("IsochronousClockModel::convertTimeToPosition: framesDelta = %llu, mFramesPerBurst = %d",
+//         (long long) framesDelta, mFramesPerBurst);
+    return position;
+}
diff --git a/media/libaaudio/src/client/IsochronousClockModel.h b/media/libaaudio/src/client/IsochronousClockModel.h
new file mode 100644
index 0000000..524c286
--- /dev/null
+++ b/media/libaaudio/src/client/IsochronousClockModel.h
@@ -0,0 +1,110 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef AAUDIO_ISOCHRONOUSCLOCKMODEL_H
+#define AAUDIO_ISOCHRONOUSCLOCKMODEL_H
+
+#include <stdint.h>
+#include <aaudio/AAudio.h>
+
+namespace aaudio {
+
+/**
+ * Model an isochronous data stream using occasional timestamps as input.
+ * This can be used to predict the position of the stream at a given time.
+ *
+ * This class is not thread safe and should only be called from one thread.
+ */
+class IsochronousClockModel {
+
+public:
+    IsochronousClockModel();
+    virtual ~IsochronousClockModel();
+
+    void start(int64_t nanoTime);
+    void stop(int64_t nanoTime);
+
+    void processTimestamp(int64_t framePosition, int64_t nanoTime);
+
+    /**
+     * @param sampleRate rate of the stream in frames per second
+     */
+    void setSampleRate(int32_t sampleRate);
+
+    int32_t getSampleRate() const {
+        return mSampleRate;
+    }
+
+    /**
+     * This must be set accurately in order to track the isochronous stream.
+     *
+     * @param framesPerBurst number of frames that stream advance at one time.
+     */
+    void setFramesPerBurst(int32_t framesPerBurst);
+
+    int32_t getFramesPerBurst() const {
+        return mFramesPerBurst;
+    }
+
+    /**
+     * Calculate an estimated time when the stream will be at that position.
+     *
+     * @param framePosition position of the stream in frames
+     * @return time in nanoseconds
+     */
+    int64_t convertPositionToTime(int64_t framePosition) const;
+
+    /**
+     * Calculate an estimated position where the stream will be at the specified time.
+     *
+     * @param nanoTime time of interest
+     * @return position in frames
+     */
+    int64_t convertTimeToPosition(int64_t nanoTime) const;
+
+    /**
+     * @param framesDelta difference in frames
+     * @return duration in nanoseconds
+     */
+    int64_t convertDeltaPositionToTime(int64_t framesDelta) const;
+
+    /**
+     * @param nanosDelta duration in nanoseconds
+     * @return frames that stream will advance in that time
+     */
+    int64_t convertDeltaTimeToPosition(int64_t nanosDelta) const;
+
+private:
+    enum clock_model_state_t {
+        STATE_STOPPED,
+        STATE_STARTING,
+        STATE_SYNCING,
+        STATE_RUNNING
+    };
+
+    int64_t             mMarkerFramePosition;
+    int64_t             mMarkerNanoTime;
+    int32_t             mSampleRate;
+    int32_t             mFramesPerBurst;
+    int32_t             mMaxLatenessInNanos;
+    clock_model_state_t mState;
+
+    void update();
+};
+
+} /* namespace aaudio */
+
+#endif //AAUDIO_ISOCHRONOUSCLOCKMODEL_H
diff --git a/media/libaaudio/src/core/AAudioAudio.cpp b/media/libaaudio/src/core/AAudioAudio.cpp
new file mode 100644
index 0000000..52bad70
--- /dev/null
+++ b/media/libaaudio/src/core/AAudioAudio.cpp
@@ -0,0 +1,415 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "AAudio"
+//#define LOG_NDEBUG 0
+#include <utils/Log.h>
+
+#include <time.h>
+#include <pthread.h>
+
+#include <aaudio/AAudioDefinitions.h>
+#include <aaudio/AAudio.h>
+
+#include "AudioStreamBuilder.h"
+#include "AudioStream.h"
+#include "AudioClock.h"
+#include "client/AudioStreamInternal.h"
+#include "HandleTracker.h"
+
+using namespace aaudio;
+
+
+// Macros for common code that includes a return.
+// TODO Consider using do{}while(0) construct. I tried but it hung AndroidStudio
+#define CONVERT_BUILDER_HANDLE_OR_RETURN() \
+    convertAAudioBuilderToStreamBuilder(builder);
+
+#define COMMON_GET_FROM_BUILDER_OR_RETURN(resultPtr) \
+    CONVERT_BUILDER_HANDLE_OR_RETURN() \
+    if ((resultPtr) == nullptr) { \
+        return AAUDIO_ERROR_NULL; \
+    }
+
+#define AAUDIO_CASE_ENUM(name) case name: return #name
+
+AAUDIO_API const char * AAudio_convertResultToText(aaudio_result_t returnCode) {
+    switch (returnCode) {
+        AAUDIO_CASE_ENUM(AAUDIO_OK);
+        AAUDIO_CASE_ENUM(AAUDIO_ERROR_ILLEGAL_ARGUMENT);
+        AAUDIO_CASE_ENUM(AAUDIO_ERROR_INCOMPATIBLE);
+        AAUDIO_CASE_ENUM(AAUDIO_ERROR_INTERNAL);
+        AAUDIO_CASE_ENUM(AAUDIO_ERROR_INVALID_STATE);
+        AAUDIO_CASE_ENUM(AAUDIO_ERROR_INVALID_HANDLE);
+        AAUDIO_CASE_ENUM(AAUDIO_ERROR_INVALID_QUERY);
+        AAUDIO_CASE_ENUM(AAUDIO_ERROR_UNIMPLEMENTED);
+        AAUDIO_CASE_ENUM(AAUDIO_ERROR_UNAVAILABLE);
+        AAUDIO_CASE_ENUM(AAUDIO_ERROR_NO_FREE_HANDLES);
+        AAUDIO_CASE_ENUM(AAUDIO_ERROR_NO_MEMORY);
+        AAUDIO_CASE_ENUM(AAUDIO_ERROR_NULL);
+        AAUDIO_CASE_ENUM(AAUDIO_ERROR_TIMEOUT);
+        AAUDIO_CASE_ENUM(AAUDIO_ERROR_WOULD_BLOCK);
+        AAUDIO_CASE_ENUM(AAUDIO_ERROR_INVALID_ORDER);
+        AAUDIO_CASE_ENUM(AAUDIO_ERROR_OUT_OF_RANGE);
+        AAUDIO_CASE_ENUM(AAUDIO_ERROR_NO_SERVICE);
+    }
+    return "Unrecognized AAudio error.";
+}
+
+AAUDIO_API const char * AAudio_convertStreamStateToText(aaudio_stream_state_t state) {
+    switch (state) {
+        AAUDIO_CASE_ENUM(AAUDIO_STREAM_STATE_UNINITIALIZED);
+        AAUDIO_CASE_ENUM(AAUDIO_STREAM_STATE_UNKNOWN);
+        AAUDIO_CASE_ENUM(AAUDIO_STREAM_STATE_OPEN);
+        AAUDIO_CASE_ENUM(AAUDIO_STREAM_STATE_STARTING);
+        AAUDIO_CASE_ENUM(AAUDIO_STREAM_STATE_STARTED);
+        AAUDIO_CASE_ENUM(AAUDIO_STREAM_STATE_PAUSING);
+        AAUDIO_CASE_ENUM(AAUDIO_STREAM_STATE_PAUSED);
+        AAUDIO_CASE_ENUM(AAUDIO_STREAM_STATE_FLUSHING);
+        AAUDIO_CASE_ENUM(AAUDIO_STREAM_STATE_FLUSHED);
+        AAUDIO_CASE_ENUM(AAUDIO_STREAM_STATE_STOPPING);
+        AAUDIO_CASE_ENUM(AAUDIO_STREAM_STATE_STOPPED);
+        AAUDIO_CASE_ENUM(AAUDIO_STREAM_STATE_CLOSING);
+        AAUDIO_CASE_ENUM(AAUDIO_STREAM_STATE_CLOSED);
+    }
+    return "Unrecognized AAudio state.";
+}
+
+#undef AAUDIO_CASE_ENUM
+
+static AudioStream *convertAAudioStreamToAudioStream(AAudioStream* stream)
+{
+    return (AudioStream*) stream;
+}
+
+static AudioStreamBuilder *convertAAudioBuilderToStreamBuilder(AAudioStreamBuilder* builder)
+{
+    return (AudioStreamBuilder*) builder;
+}
+
+AAUDIO_API aaudio_result_t AAudio_createStreamBuilder(AAudioStreamBuilder** builder)
+{
+    ALOGD("AAudio_createStreamBuilder(): check sHandleTracker.isInitialized ()");
+    AudioStreamBuilder *audioStreamBuilder =  new AudioStreamBuilder();
+    if (audioStreamBuilder == nullptr) {
+        return AAUDIO_ERROR_NO_MEMORY;
+    }
+    *builder = (AAudioStreamBuilder*) audioStreamBuilder;
+    return AAUDIO_OK;
+}
+
+AAUDIO_API void AAudioStreamBuilder_setDeviceId(AAudioStreamBuilder* builder,
+                                                     int32_t deviceId)
+{
+    AudioStreamBuilder *streamBuilder = convertAAudioBuilderToStreamBuilder(builder);;
+    streamBuilder->setDeviceId(deviceId);
+}
+
+AAUDIO_API void AAudioStreamBuilder_setSampleRate(AAudioStreamBuilder* builder,
+                                              int32_t sampleRate)
+{
+    AudioStreamBuilder *streamBuilder = convertAAudioBuilderToStreamBuilder(builder);;
+    streamBuilder->setSampleRate(sampleRate);
+}
+
+AAUDIO_API void AAudioStreamBuilder_setSamplesPerFrame(AAudioStreamBuilder* builder,
+                                                   int32_t samplesPerFrame)
+{
+    AudioStreamBuilder *streamBuilder = convertAAudioBuilderToStreamBuilder(builder);;
+    streamBuilder->setSamplesPerFrame(samplesPerFrame);
+}
+
+AAUDIO_API void AAudioStreamBuilder_setDirection(AAudioStreamBuilder* builder,
+                                             aaudio_direction_t direction)
+{
+    AudioStreamBuilder *streamBuilder = convertAAudioBuilderToStreamBuilder(builder);;
+    streamBuilder->setDirection(direction);
+}
+
+
+AAUDIO_API void AAudioStreamBuilder_setFormat(AAudioStreamBuilder* builder,
+                                                   aaudio_audio_format_t format)
+{
+    AudioStreamBuilder *streamBuilder = convertAAudioBuilderToStreamBuilder(builder);;
+    streamBuilder->setFormat(format);
+}
+
+AAUDIO_API void AAudioStreamBuilder_setSharingMode(AAudioStreamBuilder* builder,
+                                                        aaudio_sharing_mode_t sharingMode)
+{
+    AudioStreamBuilder *streamBuilder = convertAAudioBuilderToStreamBuilder(builder);;
+    streamBuilder->setSharingMode(sharingMode);
+}
+
+AAUDIO_API void AAudioStreamBuilder_setBufferCapacityInFrames(AAudioStreamBuilder* builder,
+                                                        int32_t frames)
+{
+    AudioStreamBuilder *streamBuilder = convertAAudioBuilderToStreamBuilder(builder);;
+    streamBuilder->setBufferCapacity(frames);
+}
+
+static aaudio_result_t  AAudioInternal_openStream(AudioStreamBuilder *streamBuilder,
+                                              AAudioStream** streamPtr)
+{
+    AudioStream *audioStream = nullptr;
+    aaudio_result_t result = streamBuilder->build(&audioStream);
+    if (result != AAUDIO_OK) {
+        return result;
+    } else {
+        *streamPtr = (AAudioStream*) audioStream;
+        return AAUDIO_OK;
+    }
+}
+
+AAUDIO_API aaudio_result_t  AAudioStreamBuilder_openStream(AAudioStreamBuilder* builder,
+                                                     AAudioStream** streamPtr)
+{
+    ALOGD("AAudioStreamBuilder_openStream(): builder = %p", builder);
+    AudioStreamBuilder *streamBuilder = COMMON_GET_FROM_BUILDER_OR_RETURN(streamPtr);
+    return AAudioInternal_openStream(streamBuilder, streamPtr);
+}
+
+AAUDIO_API aaudio_result_t  AAudioStreamBuilder_delete(AAudioStreamBuilder* builder)
+{
+    AudioStreamBuilder *streamBuilder = convertAAudioBuilderToStreamBuilder(builder);
+    if (streamBuilder != nullptr) {
+        delete streamBuilder;
+        return AAUDIO_OK;
+    }
+    return AAUDIO_ERROR_INVALID_HANDLE;
+}
+
+AAUDIO_API aaudio_result_t  AAudioStream_close(AAudioStream* stream)
+{
+    AudioStream *audioStream = convertAAudioStreamToAudioStream(stream);
+    ALOGD("AAudioStream_close(%p)", stream);
+    if (audioStream != nullptr) {
+        audioStream->close();
+        delete audioStream;
+        return AAUDIO_OK;
+    }
+    return AAUDIO_ERROR_INVALID_HANDLE;
+}
+
+AAUDIO_API aaudio_result_t  AAudioStream_requestStart(AAudioStream* stream)
+{
+    AudioStream *audioStream = convertAAudioStreamToAudioStream(stream);
+    ALOGD("AAudioStream_requestStart(%p)", stream);
+    return audioStream->requestStart();
+}
+
+AAUDIO_API aaudio_result_t  AAudioStream_requestPause(AAudioStream* stream)
+{
+    AudioStream *audioStream = convertAAudioStreamToAudioStream(stream);
+    ALOGD("AAudioStream_requestPause(%p)", stream);
+    return audioStream->requestPause();
+}
+
+AAUDIO_API aaudio_result_t  AAudioStream_requestFlush(AAudioStream* stream)
+{
+    AudioStream *audioStream = convertAAudioStreamToAudioStream(stream);
+    ALOGD("AAudioStream_requestFlush(%p)", stream);
+    return audioStream->requestFlush();
+}
+
+AAUDIO_API aaudio_result_t  AAudioStream_requestStop(AAudioStream* stream)
+{
+    AudioStream *audioStream = convertAAudioStreamToAudioStream(stream);
+    ALOGD("AAudioStream_requestStop(%p)", stream);
+    return audioStream->requestStop();
+}
+
+AAUDIO_API aaudio_result_t AAudioStream_waitForStateChange(AAudioStream* stream,
+                                            aaudio_stream_state_t inputState,
+                                            aaudio_stream_state_t *nextState,
+                                            int64_t timeoutNanoseconds)
+{
+
+    AudioStream *audioStream = convertAAudioStreamToAudioStream(stream);
+    return audioStream->waitForStateChange(inputState, nextState, timeoutNanoseconds);
+}
+
+// ============================================================
+// Stream - non-blocking I/O
+// ============================================================
+
+AAUDIO_API aaudio_result_t AAudioStream_read(AAudioStream* stream,
+                               void *buffer,
+                               int32_t numFrames,
+                               int64_t timeoutNanoseconds)
+{
+    AudioStream *audioStream = convertAAudioStreamToAudioStream(stream);
+    if (buffer == nullptr) {
+        return AAUDIO_ERROR_NULL;
+    }
+    if (numFrames < 0) {
+        return AAUDIO_ERROR_ILLEGAL_ARGUMENT;
+    } else if (numFrames == 0) {
+        return 0;
+    }
+
+    aaudio_result_t result = audioStream->read(buffer, numFrames, timeoutNanoseconds);
+    // ALOGD("AAudioStream_read(): read returns %d", result);
+
+    return result;
+}
+
+AAUDIO_API aaudio_result_t AAudioStream_write(AAudioStream* stream,
+                               const void *buffer,
+                               int32_t numFrames,
+                               int64_t timeoutNanoseconds)
+{
+    AudioStream *audioStream = convertAAudioStreamToAudioStream(stream);
+    if (buffer == nullptr) {
+        return AAUDIO_ERROR_NULL;
+    }
+    if (numFrames < 0) {
+        return AAUDIO_ERROR_ILLEGAL_ARGUMENT;
+    } else if (numFrames == 0) {
+        return 0;
+    }
+
+    aaudio_result_t result = audioStream->write(buffer, numFrames, timeoutNanoseconds);
+    // ALOGD("AAudioStream_write(): write returns %d", result);
+
+    return result;
+}
+
+// ============================================================
+// Miscellaneous
+// ============================================================
+
+AAUDIO_API aaudio_result_t AAudioStream_createThread(AAudioStream* stream,
+                                     int64_t periodNanoseconds,
+                                     aaudio_audio_thread_proc_t threadProc, void *arg)
+{
+    AudioStream *audioStream = convertAAudioStreamToAudioStream(stream);
+    return audioStream->createThread(periodNanoseconds, threadProc, arg);
+}
+
+AAUDIO_API aaudio_result_t AAudioStream_joinThread(AAudioStream* stream,
+                                   void **returnArg,
+                                   int64_t timeoutNanoseconds)
+{
+    AudioStream *audioStream = convertAAudioStreamToAudioStream(stream);
+    return audioStream->joinThread(returnArg, timeoutNanoseconds);
+}
+
+// ============================================================
+// Stream - queries
+// ============================================================
+
+AAUDIO_API int32_t AAudioStream_getSampleRate(AAudioStream* stream)
+{
+    AudioStream *audioStream = convertAAudioStreamToAudioStream(stream);
+    return audioStream->getSampleRate();
+}
+
+AAUDIO_API int32_t AAudioStream_getSamplesPerFrame(AAudioStream* stream)
+{
+    AudioStream *audioStream = convertAAudioStreamToAudioStream(stream);
+    return audioStream->getSamplesPerFrame();
+}
+
+AAUDIO_API aaudio_stream_state_t AAudioStream_getState(AAudioStream* stream)
+{
+    AudioStream *audioStream = convertAAudioStreamToAudioStream(stream);
+    return audioStream->getState();
+}
+
+AAUDIO_API aaudio_audio_format_t AAudioStream_getFormat(AAudioStream* stream)
+{
+    AudioStream *audioStream = convertAAudioStreamToAudioStream(stream);
+    return audioStream->getFormat();
+}
+
+AAUDIO_API aaudio_result_t AAudioStream_setBufferSizeInFrames(AAudioStream* stream,
+                                                int32_t requestedFrames)
+{
+    AudioStream *audioStream = convertAAudioStreamToAudioStream(stream);
+    return audioStream->setBufferSize(requestedFrames);
+}
+
+AAUDIO_API int32_t AAudioStream_getBufferSizeInFrames(AAudioStream* stream)
+{
+    AudioStream *audioStream = convertAAudioStreamToAudioStream(stream);
+    return audioStream->getBufferSize();
+}
+
+AAUDIO_API aaudio_direction_t AAudioStream_getDirection(AAudioStream* stream)
+{
+    AudioStream *audioStream = convertAAudioStreamToAudioStream(stream);
+    return audioStream->getDirection();
+}
+
+AAUDIO_API int32_t AAudioStream_getFramesPerBurst(AAudioStream* stream)
+{
+    AudioStream *audioStream = convertAAudioStreamToAudioStream(stream);
+    return audioStream->getFramesPerBurst();
+}
+
+AAUDIO_API int32_t AAudioStream_getBufferCapacityInFrames(AAudioStream* stream)
+{
+    AudioStream *audioStream = convertAAudioStreamToAudioStream(stream);
+    return audioStream->getBufferCapacity();
+}
+
+AAUDIO_API int32_t AAudioStream_getXRunCount(AAudioStream* stream)
+{
+    AudioStream *audioStream = convertAAudioStreamToAudioStream(stream);
+    return audioStream->getXRunCount();
+}
+
+AAUDIO_API int32_t AAudioStream_getDeviceId(AAudioStream* stream)
+{
+    AudioStream *audioStream = convertAAudioStreamToAudioStream(stream);
+    return audioStream->getDeviceId();
+}
+
+AAUDIO_API aaudio_sharing_mode_t AAudioStream_getSharingMode(AAudioStream* stream)
+{
+    AudioStream *audioStream = convertAAudioStreamToAudioStream(stream);
+    return audioStream->getSharingMode();
+}
+
+AAUDIO_API int64_t AAudioStream_getFramesWritten(AAudioStream* stream)
+{
+    AudioStream *audioStream = convertAAudioStreamToAudioStream(stream);
+    return audioStream->getFramesWritten();
+}
+
+AAUDIO_API int64_t AAudioStream_getFramesRead(AAudioStream* stream)
+{
+    AudioStream *audioStream = convertAAudioStreamToAudioStream(stream);
+    return audioStream->getFramesRead();
+}
+
+AAUDIO_API aaudio_result_t AAudioStream_getTimestamp(AAudioStream* stream,
+                                      clockid_t clockid,
+                                      int64_t *framePosition,
+                                      int64_t *timeNanoseconds)
+{
+    AudioStream *audioStream = convertAAudioStreamToAudioStream(stream);
+    if (framePosition == nullptr) {
+        return AAUDIO_ERROR_NULL;
+    } else if (timeNanoseconds == nullptr) {
+        return AAUDIO_ERROR_NULL;
+    } else if (clockid != CLOCK_MONOTONIC && clockid != CLOCK_BOOTTIME) {
+        return AAUDIO_ERROR_ILLEGAL_ARGUMENT;
+    }
+
+    return audioStream->getTimestamp(clockid, framePosition, timeNanoseconds);
+}
diff --git a/media/libaaudio/src/core/AudioStream.cpp b/media/libaaudio/src/core/AudioStream.cpp
new file mode 100644
index 0000000..b054d94
--- /dev/null
+++ b/media/libaaudio/src/core/AudioStream.cpp
@@ -0,0 +1,163 @@
+/*
+ * Copyright 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "AAudio"
+//#define LOG_NDEBUG 0
+#include <utils/Log.h>
+
+#include <atomic>
+#include <stdint.h>
+#include <aaudio/AAudio.h>
+
+#include "AudioStreamBuilder.h"
+#include "AudioStream.h"
+#include "AudioClock.h"
+
+using namespace aaudio;
+
+AudioStream::AudioStream() {
+    // mThread is a pthread_t of unknown size so we need memset.
+    memset(&mThread, 0, sizeof(mThread));
+    setPeriodNanoseconds(0);
+}
+
+aaudio_result_t AudioStream::open(const AudioStreamBuilder& builder)
+{
+    // TODO validate parameters.
+    // Copy parameters from the Builder because the Builder may be deleted after this call.
+    mSamplesPerFrame = builder.getSamplesPerFrame();
+    mSampleRate = builder.getSampleRate();
+    mDeviceId = builder.getDeviceId();
+    mFormat = builder.getFormat();
+    mSharingMode = builder.getSharingMode();
+    return AAUDIO_OK;
+}
+
+AudioStream::~AudioStream() {
+    close();
+}
+
+aaudio_result_t AudioStream::waitForStateTransition(aaudio_stream_state_t startingState,
+                                               aaudio_stream_state_t endingState,
+                                               int64_t timeoutNanoseconds)
+{
+    aaudio_stream_state_t state = getState();
+    aaudio_stream_state_t nextState = state;
+    if (state == startingState && state != endingState) {
+        aaudio_result_t result = waitForStateChange(state, &nextState, timeoutNanoseconds);
+        if (result != AAUDIO_OK) {
+            return result;
+        }
+    }
+// It's OK if the expected transition has already occurred.
+// But if we reach an unexpected state then that is an error.
+    if (nextState != endingState) {
+        return AAUDIO_ERROR_UNEXPECTED_STATE;
+    } else {
+        return AAUDIO_OK;
+    }
+}
+
+aaudio_result_t AudioStream::waitForStateChange(aaudio_stream_state_t currentState,
+                                                aaudio_stream_state_t *nextState,
+                                                int64_t timeoutNanoseconds)
+{
+    // TODO replace this when similar functionality added to AudioTrack.cpp
+    int64_t durationNanos = 20 * AAUDIO_NANOS_PER_MILLISECOND;
+    aaudio_stream_state_t state = getState();
+    while (state == currentState && timeoutNanoseconds > 0) {
+        if (durationNanos > timeoutNanoseconds) {
+            durationNanos = timeoutNanoseconds;
+        }
+        AudioClock::sleepForNanos(durationNanos);
+        timeoutNanoseconds -= durationNanos;
+
+        aaudio_result_t result = updateState();
+        if (result != AAUDIO_OK) {
+            return result;
+        }
+
+        state = getState();
+    }
+    if (nextState != nullptr) {
+        *nextState = state;
+    }
+    return (state == currentState) ? AAUDIO_ERROR_TIMEOUT : AAUDIO_OK;
+}
+
+// This registers the app's background audio thread with the server before
+// passing control to the app. This gives the server an opportunity to boost
+// the thread's performance characteristics.
+void* AudioStream::wrapUserThread() {
+    void* procResult = nullptr;
+    mThreadRegistrationResult = registerThread();
+    if (mThreadRegistrationResult == AAUDIO_OK) {
+        // Call application procedure. This may take a very long time.
+        procResult = mThreadProc(mThreadArg);
+        ALOGD("AudioStream::mThreadProc() returned");
+        mThreadRegistrationResult = unregisterThread();
+    }
+    return procResult;
+}
+
+// This is the entry point for the new thread created by createThread().
+// It converts the 'C' function call to a C++ method call.
+static void* AudioStream_internalThreadProc(void* threadArg) {
+    AudioStream *audioStream = (AudioStream *) threadArg;
+    return audioStream->wrapUserThread();
+}
+
+aaudio_result_t AudioStream::createThread(int64_t periodNanoseconds,
+                                     aaudio_audio_thread_proc_t threadProc,
+                                     void* threadArg)
+{
+    if (mHasThread) {
+        return AAUDIO_ERROR_INVALID_STATE;
+    }
+    if (threadProc == nullptr) {
+        return AAUDIO_ERROR_NULL;
+    }
+    // Pass input parameters to the background thread.
+    mThreadProc = threadProc;
+    mThreadArg = threadArg;
+    setPeriodNanoseconds(periodNanoseconds);
+    int err = pthread_create(&mThread, nullptr, AudioStream_internalThreadProc, this);
+    if (err != 0) {
+        // TODO convert errno to aaudio_result_t
+        return AAUDIO_ERROR_INTERNAL;
+    } else {
+        mHasThread = true;
+        return AAUDIO_OK;
+    }
+}
+
+aaudio_result_t AudioStream::joinThread(void** returnArg, int64_t timeoutNanoseconds)
+{
+    if (!mHasThread) {
+        return AAUDIO_ERROR_INVALID_STATE;
+    }
+#if 0
+    // TODO implement equivalent of pthread_timedjoin_np()
+    struct timespec abstime;
+    int err = pthread_timedjoin_np(mThread, returnArg, &abstime);
+#else
+    int err = pthread_join(mThread, returnArg);
+#endif
+    mHasThread = false;
+    // TODO convert errno to aaudio_result_t
+    return err ? AAUDIO_ERROR_INTERNAL : mThreadRegistrationResult;
+}
+
diff --git a/media/libaaudio/src/core/AudioStream.h b/media/libaaudio/src/core/AudioStream.h
new file mode 100644
index 0000000..af0593d
--- /dev/null
+++ b/media/libaaudio/src/core/AudioStream.h
@@ -0,0 +1,279 @@
+/*
+ * Copyright 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef AAUDIO_AUDIOSTREAM_H
+#define AAUDIO_AUDIOSTREAM_H
+
+#include <atomic>
+#include <stdint.h>
+#include <aaudio/AAudioDefinitions.h>
+#include <aaudio/AAudio.h>
+
+#include "AAudioUtilities.h"
+#include "MonotonicCounter.h"
+
+namespace aaudio {
+
+class AudioStreamBuilder;
+
+/**
+ * AAudio audio stream.
+ */
+class AudioStream {
+public:
+
+    AudioStream();
+
+    virtual ~AudioStream();
+
+
+    // =========== Begin ABSTRACT methods ===========================
+
+    /* Asynchronous requests.
+     * Use waitForStateChange() to wait for completion.
+     */
+    virtual aaudio_result_t requestStart() = 0;
+    virtual aaudio_result_t requestPause() = 0;
+    virtual aaudio_result_t requestFlush() = 0;
+    virtual aaudio_result_t requestStop() = 0;
+
+    // TODO use aaudio_clockid_t all the way down to AudioClock
+    virtual aaudio_result_t getTimestamp(clockid_t clockId,
+                                       int64_t *framePosition,
+                                       int64_t *timeNanoseconds) = 0;
+
+
+    virtual aaudio_result_t updateState() = 0;
+
+
+    // =========== End ABSTRACT methods ===========================
+
+    virtual aaudio_result_t waitForStateChange(aaudio_stream_state_t currentState,
+                                          aaudio_stream_state_t *nextState,
+                                          int64_t timeoutNanoseconds);
+
+    /**
+     * Open the stream using the parameters in the builder.
+     * Allocate the necessary resources.
+     */
+    virtual aaudio_result_t open(const AudioStreamBuilder& builder);
+
+    /**
+     * Close the stream and deallocate any resources from the open() call.
+     * It is safe to call close() multiple times.
+     */
+    virtual aaudio_result_t close() {
+        return AAUDIO_OK;
+    }
+
+    virtual aaudio_result_t setBufferSize(int32_t requestedFrames) {
+        return AAUDIO_ERROR_UNIMPLEMENTED;
+    }
+
+    virtual aaudio_result_t createThread(int64_t periodNanoseconds,
+                                       aaudio_audio_thread_proc_t threadProc,
+                                       void *threadArg);
+
+    virtual aaudio_result_t joinThread(void **returnArg, int64_t timeoutNanoseconds);
+
+    virtual aaudio_result_t registerThread() {
+        return AAUDIO_OK;
+    }
+
+    virtual aaudio_result_t unregisterThread() {
+        return AAUDIO_OK;
+    }
+
+    /**
+     * Internal function used to call the audio thread passed by the user.
+     * It is unfortunately public because it needs to be called by a static 'C' function.
+     */
+    void* wrapUserThread();
+
+    // ============== Queries ===========================
+
+    aaudio_stream_state_t getState() const {
+        return mState;
+    }
+
+    virtual int32_t getBufferSize() const {
+        return AAUDIO_ERROR_UNIMPLEMENTED;
+    }
+
+    virtual int32_t getBufferCapacity() const {
+        return AAUDIO_ERROR_UNIMPLEMENTED;
+    }
+
+    virtual int32_t getFramesPerBurst() const {
+        return AAUDIO_ERROR_UNIMPLEMENTED;
+    }
+
+    virtual int32_t getXRunCount() const {
+        return AAUDIO_ERROR_UNIMPLEMENTED;
+    }
+
+    bool isPlaying() const {
+        return mState == AAUDIO_STREAM_STATE_STARTING || mState == AAUDIO_STREAM_STATE_STARTED;
+    }
+
+    aaudio_result_t getSampleRate() const {
+        return mSampleRate;
+    }
+
+    aaudio_audio_format_t getFormat()  const {
+        return mFormat;
+    }
+
+    aaudio_result_t getSamplesPerFrame() const {
+        return mSamplesPerFrame;
+    }
+
+    int32_t getDeviceId() const {
+        return mDeviceId;
+    }
+
+    aaudio_sharing_mode_t getSharingMode() const {
+        return mSharingMode;
+    }
+
+    aaudio_direction_t getDirection() const {
+        return mDirection;
+    }
+
+    int32_t getBytesPerFrame() const {
+        return mSamplesPerFrame * getBytesPerSample();
+    }
+
+    int32_t getBytesPerSample() const {
+        return AAudioConvert_formatToSizeInBytes(mFormat);
+    }
+
+    virtual int64_t getFramesWritten() {
+        return mFramesWritten.get();
+    }
+
+    virtual int64_t getFramesRead() {
+        return mFramesRead.get();
+    }
+
+
+    // ============== I/O ===========================
+    // A Stream will only implement read() or write() depending on its direction.
+    virtual aaudio_result_t write(const void *buffer,
+                             int32_t numFrames,
+                             int64_t timeoutNanoseconds) {
+        return AAUDIO_ERROR_UNIMPLEMENTED;
+    }
+
+    virtual aaudio_result_t read(void *buffer,
+                            int32_t numFrames,
+                            int64_t timeoutNanoseconds) {
+        return AAUDIO_ERROR_UNIMPLEMENTED;
+    }
+
+protected:
+
+    virtual int64_t incrementFramesWritten(int32_t frames) {
+        return static_cast<int64_t>(mFramesWritten.increment(frames));
+    }
+
+    virtual int64_t incrementFramesRead(int32_t frames) {
+        return static_cast<int64_t>(mFramesRead.increment(frames));
+    }
+
+    /**
+     * Wait for a transition from one state to another.
+     * @return AAUDIO_OK if the endingState was observed, or AAUDIO_ERROR_UNEXPECTED_STATE
+     *   if any state that was not the startingState or endingState was observed
+     *   or AAUDIO_ERROR_TIMEOUT
+     */
+    virtual aaudio_result_t waitForStateTransition(aaudio_stream_state_t startingState,
+                                                   aaudio_stream_state_t endingState,
+                                                   int64_t timeoutNanoseconds);
+
+    /**
+     * This should not be called after the open() call.
+     */
+    void setSampleRate(int32_t sampleRate) {
+        mSampleRate = sampleRate;
+    }
+
+    /**
+     * This should not be called after the open() call.
+     */
+    void setSamplesPerFrame(int32_t samplesPerFrame) {
+        mSamplesPerFrame = samplesPerFrame;
+    }
+
+    /**
+     * This should not be called after the open() call.
+     */
+    void setSharingMode(aaudio_sharing_mode_t sharingMode) {
+        mSharingMode = sharingMode;
+    }
+
+    /**
+     * This should not be called after the open() call.
+     */
+    void setFormat(aaudio_audio_format_t format) {
+        mFormat = format;
+    }
+
+    void setState(aaudio_stream_state_t state) {
+        mState = state;
+    }
+
+
+
+protected:
+    MonotonicCounter     mFramesWritten;
+    MonotonicCounter     mFramesRead;
+
+    void setPeriodNanoseconds(int64_t periodNanoseconds) {
+        mPeriodNanoseconds.store(periodNanoseconds, std::memory_order_release);
+    }
+
+    int64_t getPeriodNanoseconds() {
+        return mPeriodNanoseconds.load(std::memory_order_acquire);
+    }
+
+private:
+    // These do not change after open().
+    int32_t                mSamplesPerFrame = AAUDIO_UNSPECIFIED;
+    int32_t                mSampleRate = AAUDIO_UNSPECIFIED;
+    int32_t                mDeviceId = AAUDIO_UNSPECIFIED;
+    aaudio_sharing_mode_t  mSharingMode = AAUDIO_SHARING_MODE_SHARED;
+    aaudio_audio_format_t  mFormat = AAUDIO_FORMAT_UNSPECIFIED;
+    aaudio_direction_t     mDirection = AAUDIO_DIRECTION_OUTPUT;
+    aaudio_stream_state_t  mState = AAUDIO_STREAM_STATE_UNINITIALIZED;
+
+    // background thread ----------------------------------
+    bool                   mHasThread = false;
+    pthread_t              mThread; // initialized in constructor
+
+    // These are set by the application thread and then read by the audio pthread.
+    std::atomic<int64_t>   mPeriodNanoseconds; // for tuning SCHED_FIFO threads
+    // TODO make atomic?
+    aaudio_audio_thread_proc_t mThreadProc = nullptr;
+    void*                  mThreadArg = nullptr;
+    aaudio_result_t        mThreadRegistrationResult = AAUDIO_OK;
+
+
+};
+
+} /* namespace aaudio */
+
+#endif /* AAUDIO_AUDIOSTREAM_H */
diff --git a/media/libaaudio/src/core/AudioStreamBuilder.cpp b/media/libaaudio/src/core/AudioStreamBuilder.cpp
new file mode 100644
index 0000000..5a54e62
--- /dev/null
+++ b/media/libaaudio/src/core/AudioStreamBuilder.cpp
@@ -0,0 +1,92 @@
+/*
+ * Copyright 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "AAudio"
+//#define LOG_NDEBUG 0
+#include <utils/Log.h>
+
+#include <new>
+#include <stdint.h>
+
+#include <aaudio/AAudioDefinitions.h>
+#include <aaudio/AAudio.h>
+
+#include "client/AudioStreamInternal.h"
+#include "core/AudioStream.h"
+#include "core/AudioStreamBuilder.h"
+#include "legacy/AudioStreamRecord.h"
+#include "legacy/AudioStreamTrack.h"
+
+using namespace aaudio;
+
+/*
+ * AudioStreamBuilder
+ */
+AudioStreamBuilder::AudioStreamBuilder() {
+}
+
+AudioStreamBuilder::~AudioStreamBuilder() {
+}
+
+aaudio_result_t AudioStreamBuilder::build(AudioStream** streamPtr) {
+    AudioStream* audioStream = nullptr;
+    const aaudio_sharing_mode_t sharingMode = getSharingMode();
+    switch (getDirection()) {
+    case AAUDIO_DIRECTION_INPUT:
+        switch (sharingMode) {
+            case AAUDIO_SHARING_MODE_SHARED:
+                audioStream = new(std::nothrow) AudioStreamRecord();
+                break;
+            default:
+                ALOGE("AudioStreamBuilder(): bad sharing mode = %d", sharingMode);
+                return AAUDIO_ERROR_ILLEGAL_ARGUMENT;
+                break;
+        }
+        break;
+    case AAUDIO_DIRECTION_OUTPUT:
+        switch (sharingMode) {
+            case AAUDIO_SHARING_MODE_SHARED:
+                audioStream = new(std::nothrow) AudioStreamTrack();
+                break;
+            case AAUDIO_SHARING_MODE_EXCLUSIVE:
+                audioStream = new(std::nothrow) AudioStreamInternal();
+                break;
+            default:
+                ALOGE("AudioStreamBuilder(): bad sharing mode = %d", sharingMode);
+                return AAUDIO_ERROR_ILLEGAL_ARGUMENT;
+                break;
+        }
+        break;
+    default:
+        ALOGE("AudioStreamBuilder(): bad direction = %d", getDirection());
+        return AAUDIO_ERROR_ILLEGAL_ARGUMENT;
+        break;
+    }
+    if (audioStream == nullptr) {
+        return AAUDIO_ERROR_NO_MEMORY;
+    }
+    ALOGD("AudioStreamBuilder(): created audioStream = %p", audioStream);
+
+    // TODO maybe move this out of build and pass the builder to the constructors
+    // Open the stream using the parameters from the builder.
+    const aaudio_result_t result = audioStream->open(*this);
+    if (result != AAUDIO_OK) {
+        delete audioStream;
+    } else {
+        *streamPtr = audioStream;
+    }
+    return result;
+}
diff --git a/media/libaaudio/src/core/AudioStreamBuilder.h b/media/libaaudio/src/core/AudioStreamBuilder.h
new file mode 100644
index 0000000..7b5f35c
--- /dev/null
+++ b/media/libaaudio/src/core/AudioStreamBuilder.h
@@ -0,0 +1,118 @@
+/*
+ * Copyright 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef AAUDIO_AUDIOSTREAMBUILDER_H
+#define AAUDIO_AUDIOSTREAMBUILDER_H
+
+#include <stdint.h>
+
+#include <aaudio/AAudioDefinitions.h>
+#include <aaudio/AAudio.h>
+
+#include "AudioStream.h"
+
+namespace aaudio {
+
+/**
+ * Factory class for an AudioStream.
+ */
+class AudioStreamBuilder {
+public:
+    AudioStreamBuilder();
+
+    ~AudioStreamBuilder();
+
+    int getSamplesPerFrame() const {
+        return mSamplesPerFrame;
+    }
+
+    /**
+     * This is also known as channelCount.
+     */
+    AudioStreamBuilder* setSamplesPerFrame(int samplesPerFrame) {
+        mSamplesPerFrame = samplesPerFrame;
+        return this;
+    }
+
+    aaudio_direction_t getDirection() const {
+        return mDirection;
+    }
+
+    AudioStreamBuilder* setDirection(aaudio_direction_t direction) {
+        mDirection = direction;
+        return this;
+    }
+
+    int32_t getSampleRate() const {
+        return mSampleRate;
+    }
+
+    AudioStreamBuilder* setSampleRate(int32_t sampleRate) {
+        mSampleRate = sampleRate;
+        return this;
+    }
+
+    aaudio_audio_format_t getFormat() const {
+        return mFormat;
+    }
+
+    AudioStreamBuilder *setFormat(aaudio_audio_format_t format) {
+        mFormat = format;
+        return this;
+    }
+
+    aaudio_sharing_mode_t getSharingMode() const {
+        return mSharingMode;
+    }
+
+    AudioStreamBuilder* setSharingMode(aaudio_sharing_mode_t sharingMode) {
+        mSharingMode = sharingMode;
+        return this;
+    }
+
+    int32_t getBufferCapacity() const {
+        return mBufferCapacity;
+    }
+
+    AudioStreamBuilder* setBufferCapacity(int32_t frames) {
+        mBufferCapacity = frames;
+        return this;
+    }
+
+    int32_t getDeviceId() const {
+        return mDeviceId;
+    }
+
+    AudioStreamBuilder* setDeviceId(int32_t deviceId) {
+        mDeviceId = deviceId;
+        return this;
+    }
+
+    aaudio_result_t build(AudioStream **streamPtr);
+
+private:
+    int32_t                mSamplesPerFrame = AAUDIO_UNSPECIFIED;
+    int32_t                mSampleRate = AAUDIO_UNSPECIFIED;
+    int32_t                mDeviceId = AAUDIO_DEVICE_UNSPECIFIED;
+    aaudio_sharing_mode_t  mSharingMode = AAUDIO_SHARING_MODE_SHARED;
+    aaudio_audio_format_t  mFormat = AAUDIO_FORMAT_UNSPECIFIED;
+    aaudio_direction_t     mDirection = AAUDIO_DIRECTION_OUTPUT;
+    int32_t                mBufferCapacity = AAUDIO_UNSPECIFIED;
+};
+
+} /* namespace aaudio */
+
+#endif /* AAUDIO_AUDIOSTREAMBUILDER_H */
diff --git a/media/libaaudio/src/core/README.md b/media/libaaudio/src/core/README.md
new file mode 100644
index 0000000..5ce41f3
--- /dev/null
+++ b/media/libaaudio/src/core/README.md
@@ -0,0 +1,2 @@
+The core folder contains the essential AAudio files common to all implementations.
+The AAudioAudio.cpp contains the 'C' API.
diff --git a/media/libaaudio/src/core/VersionExperiment.txt b/media/libaaudio/src/core/VersionExperiment.txt
new file mode 100644
index 0000000..071239b
--- /dev/null
+++ b/media/libaaudio/src/core/VersionExperiment.txt
@@ -0,0 +1,55 @@
+
+// TODO Experiment with versioning. This may be removed or changed dramatically.
+// Please ignore for now. Do not review.
+#define OBOE_VERSION_EXPERIMENT  0
+#if OBOE_VERSION_EXPERIMENT
+
+#define OBOE_EARLIEST_SUPPORTED_VERSION  1
+#define OBOE_CURRENT_VERSION  2
+
+typedef struct OboeInterface_s {
+    int32_t size; // do not use size_t because its size can vary
+    int32_t version;
+    int32_t reserved1;
+    void *  reserved2;
+    oboe_result_t (*createStreamBuilder)(OboeStreamBuilder *);
+} OboeInterface_t;
+
+OboeInterface_t s_oboe_template = {
+        .size = sizeof(OboeInterface_t),
+        .version = OBOE_CURRENT_VERSION,
+        .reserved1 = 0,
+        .reserved2 = NULL,
+        .createStreamBuilder = Oboe_createStreamBuilder
+};
+
+oboe_result_t Oboe_Unimplemented(OboeInterface_t *oboe) {
+    (void) oboe;
+    return OBOE_ERROR_UNIMPLEMENTED;
+}
+
+typedef oboe_result_t (*OboeFunction_t)(OboeInterface_t *oboe);
+
+int32_t Oboe_Initialize(OboeInterface_t *oboe, uint32_t flags) {
+    if (oboe->version < OBOE_EARLIEST_SUPPORTED_VERSION) {
+        return OBOE_ERROR_INCOMPATIBLE;
+    }
+    // Fill in callers vector table.
+    uint8_t *start = (uint8_t*)&oboe->reserved1;
+    uint8_t *end;
+    if (oboe->size <= s_oboe_template.size) {
+        end = ((uint8_t *)oboe) + oboe->size;
+    } else {
+        end = ((uint8_t *)oboe) + s_oboe_template.size;
+        // Assume the rest of the structure is vectors.
+        // Point them all to OboeInternal_Unimplemented()
+        // Point to first vector past end of the known structure.
+        OboeFunction_t *next = (OboeFunction_t*)end;
+        while ((((uint8_t *)next) - ((uint8_t *)oboe)) < oboe->size) {
+            *next++ = Oboe_Unimplemented;
+        }
+    }
+    memcpy(&oboe->reserved1, &s_oboe_template.reserved1, end - start);
+    return OBOE_OK;
+}
+#endif /* OBOE_VERSION_EXPERIMENT -------------------------- */
diff --git a/media/libaaudio/src/fifo/FifoBuffer.cpp b/media/libaaudio/src/fifo/FifoBuffer.cpp
new file mode 100644
index 0000000..c5489f1
--- /dev/null
+++ b/media/libaaudio/src/fifo/FifoBuffer.cpp
@@ -0,0 +1,186 @@
+/*
+ * Copyright 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <cstring>
+#include <unistd.h>
+
+#define LOG_TAG "FifoBuffer"
+//#define LOG_NDEBUG 0
+#include <utils/Log.h>
+
+#include "FifoControllerBase.h"
+#include "FifoController.h"
+#include "FifoControllerIndirect.h"
+#include "FifoBuffer.h"
+
+FifoBuffer::FifoBuffer(int32_t bytesPerFrame, fifo_frames_t capacityInFrames)
+        : mFrameCapacity(capacityInFrames)
+        , mBytesPerFrame(bytesPerFrame)
+        , mStorage(nullptr)
+        , mFramesReadCount(0)
+        , mFramesUnderrunCount(0)
+        , mUnderrunCount(0)
+{
+    // TODO Handle possible failures to allocate. Move out of constructor?
+    mFifo = new FifoController(capacityInFrames, capacityInFrames);
+    // allocate buffer
+    int32_t bytesPerBuffer = bytesPerFrame * capacityInFrames;
+    mStorage = new uint8_t[bytesPerBuffer];
+    mStorageOwned = true;
+    ALOGD("FifoBuffer: capacityInFrames = %d, bytesPerFrame = %d",
+          capacityInFrames, bytesPerFrame);
+}
+
+FifoBuffer::FifoBuffer( int32_t   bytesPerFrame,
+                        fifo_frames_t   capacityInFrames,
+                        fifo_counter_t *  readIndexAddress,
+                        fifo_counter_t *  writeIndexAddress,
+                        void *  dataStorageAddress
+                        )
+        : mFrameCapacity(capacityInFrames)
+        , mBytesPerFrame(bytesPerFrame)
+        , mStorage(static_cast<uint8_t *>(dataStorageAddress))
+        , mFramesReadCount(0)
+        , mFramesUnderrunCount(0)
+        , mUnderrunCount(0)
+{
+    // TODO Handle possible failures to allocate. Move out of constructor?
+    mFifo = new FifoControllerIndirect(capacityInFrames,
+                                       capacityInFrames,
+                                       readIndexAddress,
+                                       writeIndexAddress);
+    mStorageOwned = false;
+    ALOGD("FifoProcessor: capacityInFrames = %d, bytesPerFrame = %d",
+          capacityInFrames, bytesPerFrame);
+}
+
+FifoBuffer::~FifoBuffer() {
+    if (mStorageOwned) {
+        delete[] mStorage;
+    }
+    delete mFifo;
+}
+
+
+int32_t FifoBuffer::convertFramesToBytes(fifo_frames_t frames) {
+    return frames * mBytesPerFrame;
+}
+
+fifo_frames_t FifoBuffer::read(void *buffer, fifo_frames_t numFrames) {
+    size_t numBytes;
+    fifo_frames_t framesAvailable = mFifo->getFullFramesAvailable();
+    fifo_frames_t framesToRead = numFrames;
+    // Is there enough data in the FIFO
+    if (framesToRead > framesAvailable) {
+        framesToRead = framesAvailable;
+    }
+    if (framesToRead == 0) {
+        return 0;
+    }
+
+    fifo_frames_t readIndex = mFifo->getReadIndex();
+    uint8_t *destination = (uint8_t *) buffer;
+    uint8_t *source = &mStorage[convertFramesToBytes(readIndex)];
+    if ((readIndex + framesToRead) > mFrameCapacity) {
+        // read in two parts, first part here
+        fifo_frames_t frames1 = mFrameCapacity - readIndex;
+        int32_t numBytes = convertFramesToBytes(frames1);
+        memcpy(destination, source, numBytes);
+        destination += numBytes;
+        // read second part
+        source = &mStorage[0];
+        fifo_frames_t frames2 = framesToRead - frames1;
+        numBytes = convertFramesToBytes(frames2);
+        memcpy(destination, source, numBytes);
+    } else {
+        // just read in one shot
+        numBytes = convertFramesToBytes(framesToRead);
+        memcpy(destination, source, numBytes);
+    }
+    mFifo->advanceReadIndex(framesToRead);
+
+    return framesToRead;
+}
+
+fifo_frames_t FifoBuffer::write(const void *buffer, fifo_frames_t framesToWrite) {
+    fifo_frames_t framesAvailable = mFifo->getEmptyFramesAvailable();
+//    ALOGD("FifoBuffer::write() framesToWrite = %d, framesAvailable = %d",
+//         framesToWrite, framesAvailable);
+    if (framesToWrite > framesAvailable) {
+        framesToWrite = framesAvailable;
+    }
+    if (framesToWrite <= 0) {
+        return 0;
+    }
+
+    size_t numBytes;
+    fifo_frames_t writeIndex = mFifo->getWriteIndex();
+    int byteIndex = convertFramesToBytes(writeIndex);
+    const uint8_t *source = (const uint8_t *) buffer;
+    uint8_t *destination = &mStorage[byteIndex];
+    if ((writeIndex + framesToWrite) > mFrameCapacity) {
+        // write in two parts, first part here
+        fifo_frames_t frames1 = mFrameCapacity - writeIndex;
+        numBytes = convertFramesToBytes(frames1);
+        memcpy(destination, source, numBytes);
+//        ALOGD("FifoBuffer::write(%p to %p, numBytes = %d", source, destination, numBytes);
+        // read second part
+        source += convertFramesToBytes(frames1);
+        destination = &mStorage[0];
+        fifo_frames_t framesLeft = framesToWrite - frames1;
+        numBytes = convertFramesToBytes(framesLeft);
+//        ALOGD("FifoBuffer::write(%p to %p, numBytes = %d", source, destination, numBytes);
+        memcpy(destination, source, numBytes);
+    } else {
+        // just write in one shot
+        numBytes = convertFramesToBytes(framesToWrite);
+//        ALOGD("FifoBuffer::write(%p to %p, numBytes = %d", source, destination, numBytes);
+        memcpy(destination, source, numBytes);
+    }
+    mFifo->advanceWriteIndex(framesToWrite);
+
+    return framesToWrite;
+}
+
+fifo_frames_t FifoBuffer::readNow(void *buffer, fifo_frames_t numFrames) {
+    mLastReadSize = numFrames;
+    fifo_frames_t framesLeft = numFrames;
+    fifo_frames_t framesRead = read(buffer, numFrames);
+    framesLeft -= framesRead;
+    mFramesReadCount += framesRead;
+    mFramesUnderrunCount += framesLeft;
+    // Zero out any samples we could not set.
+    if (framesLeft > 0) {
+        mUnderrunCount++;
+        int32_t bytesToZero = convertFramesToBytes(framesLeft);
+        memset(buffer, 0, bytesToZero);
+    }
+
+    return framesRead;
+}
+
+fifo_frames_t FifoBuffer::getThreshold() {
+    return mFifo->getThreshold();
+}
+
+void FifoBuffer::setThreshold(fifo_frames_t threshold) {
+    mFifo->setThreshold(threshold);
+}
+
+fifo_frames_t FifoBuffer::getBufferCapacityInFrames() {
+    return mFifo->getCapacity();
+}
+
diff --git a/media/libaaudio/src/fifo/FifoBuffer.h b/media/libaaudio/src/fifo/FifoBuffer.h
new file mode 100644
index 0000000..faa9ae2
--- /dev/null
+++ b/media/libaaudio/src/fifo/FifoBuffer.h
@@ -0,0 +1,87 @@
+/*
+ * Copyright 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef FIFO_FIFO_BUFFER_H
+#define FIFO_FIFO_BUFFER_H
+
+#include <stdint.h>
+
+#include "FifoControllerBase.h"
+
+class FifoBuffer {
+public:
+    FifoBuffer(int32_t bytesPerFrame, fifo_frames_t capacityInFrames);
+
+    FifoBuffer(int32_t   bytesPerFrame,
+               fifo_frames_t   capacityInFrames,
+               fifo_counter_t * readCounterAddress,
+               fifo_counter_t * writeCounterAddress,
+               void * dataStorageAddress);
+
+    ~FifoBuffer();
+
+    int32_t convertFramesToBytes(fifo_frames_t frames);
+
+    fifo_frames_t read(void *destination, fifo_frames_t framesToRead);
+
+    fifo_frames_t write(const void *source, fifo_frames_t framesToWrite);
+
+    fifo_frames_t getThreshold();
+    void setThreshold(fifo_frames_t threshold);
+
+    fifo_frames_t getBufferCapacityInFrames();
+
+    fifo_frames_t readNow(void *buffer, fifo_frames_t numFrames);
+
+    int64_t getNextReadTime(int32_t frameRate);
+
+    int32_t getUnderrunCount() const { return mUnderrunCount; }
+
+    FifoControllerBase *getFifoControllerBase() { return mFifo; }
+
+    int32_t getBytesPerFrame() {
+        return mBytesPerFrame;
+    }
+
+    fifo_counter_t getReadCounter() {
+        return mFifo->getReadCounter();
+    }
+
+    void setReadCounter(fifo_counter_t n) {
+        mFifo->setReadCounter(n);
+    }
+
+    fifo_counter_t getWriteCounter() {
+        return mFifo->getWriteCounter();
+    }
+
+    void setWriteCounter(fifo_counter_t n) {
+        mFifo->setWriteCounter(n);
+    }
+
+private:
+    const fifo_frames_t mFrameCapacity;
+    const int32_t       mBytesPerFrame;
+    uint8_t *           mStorage;
+    bool                mStorageOwned; // did this object allocate the storage?
+    FifoControllerBase *mFifo;
+    fifo_counter_t      mFramesReadCount;
+    fifo_counter_t      mFramesUnderrunCount;
+    int32_t             mUnderrunCount; // need? just use frames
+    int32_t             mLastReadSize;
+};
+
+#endif //FIFO_FIFO_BUFFER_H
diff --git a/media/libaaudio/src/fifo/FifoController.h b/media/libaaudio/src/fifo/FifoController.h
new file mode 100644
index 0000000..7434634
--- /dev/null
+++ b/media/libaaudio/src/fifo/FifoController.h
@@ -0,0 +1,59 @@
+/*
+ * Copyright 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef FIFO_FIFO_CONTROLLER_H
+#define FIFO_FIFO_CONTROLLER_H
+
+#include <stdint.h>
+#include <atomic>
+
+#include "FifoControllerBase.h"
+
+/**
+ * A FIFO with counters contained in the class.
+ */
+class FifoController : public FifoControllerBase
+{
+public:
+    FifoController(fifo_counter_t bufferSize, fifo_counter_t threshold)
+    : FifoControllerBase(bufferSize, threshold)
+    , mReadCounter(0)
+    , mWriteCounter(0)
+    {}
+
+    virtual ~FifoController() {}
+
+    // TODO review use of memory barriers, probably incorrect
+    virtual fifo_counter_t getReadCounter() override {
+        return mReadCounter.load(std::memory_order_acquire);
+    }
+    virtual void setReadCounter(fifo_counter_t n) override {
+        mReadCounter.store(n, std::memory_order_release);
+    }
+    virtual fifo_counter_t getWriteCounter() override {
+        return mWriteCounter.load(std::memory_order_acquire);
+    }
+    virtual void setWriteCounter(fifo_counter_t n) override {
+        mWriteCounter.store(n, std::memory_order_release);
+    }
+
+private:
+    std::atomic<fifo_counter_t> mReadCounter;
+    std::atomic<fifo_counter_t> mWriteCounter;
+};
+
+
+#endif //FIFO_FIFO_CONTROLLER_H
diff --git a/media/libaaudio/src/fifo/FifoControllerBase.cpp b/media/libaaudio/src/fifo/FifoControllerBase.cpp
new file mode 100644
index 0000000..33a253e
--- /dev/null
+++ b/media/libaaudio/src/fifo/FifoControllerBase.cpp
@@ -0,0 +1,61 @@
+/*
+ * Copyright 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "FifoControllerBase"
+//#define LOG_NDEBUG 0
+#include <utils/Log.h>
+
+#include <stdint.h>
+#include "FifoControllerBase.h"
+
+FifoControllerBase::FifoControllerBase(fifo_frames_t capacity, fifo_frames_t threshold)
+        : mCapacity(capacity)
+        , mThreshold(threshold)
+{
+}
+
+FifoControllerBase::~FifoControllerBase() {
+}
+
+fifo_frames_t FifoControllerBase::getFullFramesAvailable() {
+    return (fifo_frames_t) (getWriteCounter() - getReadCounter());
+}
+
+fifo_frames_t FifoControllerBase::getReadIndex() {
+    // % works with non-power of two sizes
+    return (fifo_frames_t) (getReadCounter() % mCapacity);
+}
+
+void FifoControllerBase::advanceReadIndex(fifo_frames_t numFrames) {
+    setReadCounter(getReadCounter() + numFrames);
+}
+
+fifo_frames_t FifoControllerBase::getEmptyFramesAvailable() {
+    return (int32_t)(mThreshold - getFullFramesAvailable());
+}
+
+fifo_frames_t FifoControllerBase::getWriteIndex() {
+    // % works with non-power of two sizes
+    return (fifo_frames_t) (getWriteCounter() % mCapacity);
+}
+
+void FifoControllerBase::advanceWriteIndex(fifo_frames_t numFrames) {
+    setWriteCounter(getWriteCounter() + numFrames);
+}
+
+void FifoControllerBase::setThreshold(fifo_frames_t threshold) {
+    mThreshold = threshold;
+}
diff --git a/media/libaaudio/src/fifo/FifoControllerBase.h b/media/libaaudio/src/fifo/FifoControllerBase.h
new file mode 100644
index 0000000..c543519
--- /dev/null
+++ b/media/libaaudio/src/fifo/FifoControllerBase.h
@@ -0,0 +1,121 @@
+/*
+ * Copyright 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef FIFO_FIFO_CONTROLLER_BASE_H
+#define FIFO_FIFO_CONTROLLER_BASE_H
+
+#include <stdint.h>
+
+typedef int64_t fifo_counter_t;
+typedef int32_t fifo_frames_t;
+
+/**
+ * Manage the read/write indices of a circular buffer.
+ *
+ * The caller is responsible for reading and writing the actual data.
+ * Note that the span of available frames may not be contiguous. They
+ * may wrap around from the end to the beginning of the buffer. In that
+ * case the data must be read or written in at least two blocks of frames.
+ *
+ */
+class FifoControllerBase {
+
+public:
+    /**
+     * Constructor for FifoControllerBase
+     * @param capacity Total size of the circular buffer in frames.
+     * @param threshold Number of frames to fill. Must be less than capacity.
+     */
+    FifoControllerBase(fifo_frames_t capacity, fifo_frames_t threshold);
+
+    virtual ~FifoControllerBase();
+
+    // Abstract methods to be implemented in subclasses.
+    /**
+     * @return Counter used by the reader of the FIFO.
+     */
+    virtual fifo_counter_t getReadCounter() = 0;
+
+    /**
+     * This is normally only used internally.
+     * @param count Number of frames that have been read.
+     */
+    virtual void setReadCounter(fifo_counter_t count) = 0;
+
+    /**
+     * @return Counter used by the reader of the FIFO.
+     */
+    virtual fifo_counter_t getWriteCounter() = 0;
+
+    /**
+     * This is normally only used internally.
+     * @param count Number of frames that have been read.
+     */
+    virtual void setWriteCounter(fifo_counter_t count) = 0;
+
+    /**
+     * This may be negative if an unthrottled reader has read beyond the available data.
+     * @return number of valid frames available to read. Never read more than this.
+     */
+    fifo_frames_t getFullFramesAvailable();
+
+    /**
+     * The index in a circular buffer of the next frame to read.
+     */
+    fifo_frames_t getReadIndex();
+
+    /**
+     * @param numFrames number of frames to advance the read index
+     */
+    void advanceReadIndex(fifo_frames_t numFrames);
+
+    /**
+     * @return number of frames that can be written. Never write more than this.
+     */
+    fifo_frames_t getEmptyFramesAvailable();
+
+    /**
+     * The index in a circular buffer of the next frame to write.
+     */
+    fifo_frames_t getWriteIndex();
+
+    /**
+     * @param numFrames number of frames to advance the write index
+     */
+    void advanceWriteIndex(fifo_frames_t numFrames);
+
+    /**
+     * You can request that the buffer not be filled above a maximum
+     * number of frames.
+     * @param threshold effective size of the buffer
+     */
+    void setThreshold(fifo_frames_t threshold);
+
+    fifo_frames_t getThreshold() const {
+        return mThreshold;
+    }
+
+    fifo_frames_t getCapacity() const {
+        return mCapacity;
+    }
+
+
+private:
+    fifo_frames_t mCapacity;
+    fifo_frames_t mThreshold;
+};
+
+#endif // FIFO_FIFO_CONTROLLER_BASE_H
diff --git a/media/libaaudio/src/fifo/FifoControllerIndirect.h b/media/libaaudio/src/fifo/FifoControllerIndirect.h
new file mode 100644
index 0000000..1aaf9ea
--- /dev/null
+++ b/media/libaaudio/src/fifo/FifoControllerIndirect.h
@@ -0,0 +1,69 @@
+/*
+ * Copyright 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef FIFO_FIFO_CONTROLLER_INDIRECT_H
+#define FIFO_FIFO_CONTROLLER_INDIRECT_H
+
+#include <stdint.h>
+#include <atomic>
+
+#include "FifoControllerBase.h"
+
+/**
+ * A FifoControllerBase with counters external to the class.
+ *
+ * The actual copunters may be stored in separate regions of shared memory
+ * with different access rights.
+ */
+class FifoControllerIndirect : public FifoControllerBase {
+
+public:
+    FifoControllerIndirect(fifo_frames_t capacity,
+                           fifo_frames_t threshold,
+                           fifo_counter_t * readCounterAddress,
+                           fifo_counter_t * writeCounterAddress)
+        : FifoControllerBase(capacity, threshold)
+        , mReadCounterAddress((std::atomic<fifo_counter_t> *) readCounterAddress)
+        , mWriteCounterAddress((std::atomic<fifo_counter_t> *) writeCounterAddress)
+    {
+        setReadCounter(0);
+        setWriteCounter(0);
+    }
+    virtual ~FifoControllerIndirect() {};
+
+    // TODO review use of memory barriers, probably incorrect
+    virtual fifo_counter_t getReadCounter() override {
+        return mReadCounterAddress->load(std::memory_order_acquire);
+    }
+
+    virtual void setReadCounter(fifo_counter_t count) override {
+        mReadCounterAddress->store(count, std::memory_order_release);
+    }
+
+    virtual fifo_counter_t getWriteCounter() override {
+        return mWriteCounterAddress->load(std::memory_order_acquire);
+    }
+
+    virtual void setWriteCounter(fifo_counter_t count) override {
+        mWriteCounterAddress->store(count, std::memory_order_release);
+    }
+
+private:
+    std::atomic<fifo_counter_t> * mReadCounterAddress;
+    std::atomic<fifo_counter_t> * mWriteCounterAddress;
+};
+
+#endif //FIFO_FIFO_CONTROLLER_INDIRECT_H
diff --git a/media/libaaudio/src/fifo/README.md b/media/libaaudio/src/fifo/README.md
new file mode 100644
index 0000000..5d0c471
--- /dev/null
+++ b/media/libaaudio/src/fifo/README.md
@@ -0,0 +1,9 @@
+Simple atomic FIFO for passing data between threads or processes.
+This does not require mutexes.
+
+One thread modifies the readCounter and the other thread modifies the writeCounter.
+
+TODO The internal low-level implementation might be merged in some form with audio_utils fifo
+and/or FMQ [after confirming that requirements are met].
+The higher-levels parts related to AAudio use of the FIFO such as API, fds, relative
+location of indices and data buffer, mapping, allocation of memmory will probably be kept as-is.
diff --git a/media/libaaudio/src/legacy/AAudioLegacy.h b/media/libaaudio/src/legacy/AAudioLegacy.h
new file mode 100644
index 0000000..2ceb7d4
--- /dev/null
+++ b/media/libaaudio/src/legacy/AAudioLegacy.h
@@ -0,0 +1,30 @@
+/*
+ * Copyright 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef AAUDIO_LEGACY_H
+#define AAUDIO_LEGACY_H
+
+#include <stdint.h>
+#include <aaudio/AAudio.h>
+
+/**
+ * Common code for legacy classes.
+ */
+
+/* AudioTrack uses a 32-bit frame counter that can wrap around in about a day. */
+typedef uint32_t aaudio_wrapping_frames_t;
+
+#endif /* AAUDIO_LEGACY_H */
diff --git a/media/libaaudio/src/legacy/AudioStreamRecord.cpp b/media/libaaudio/src/legacy/AudioStreamRecord.cpp
new file mode 100644
index 0000000..dd040a0
--- /dev/null
+++ b/media/libaaudio/src/legacy/AudioStreamRecord.cpp
@@ -0,0 +1,228 @@
+/*
+ * Copyright 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "AudioStreamRecord"
+//#define LOG_NDEBUG 0
+#include <utils/Log.h>
+
+#include <stdint.h>
+#include <utils/String16.h>
+#include <media/AudioRecord.h>
+#include <aaudio/AAudio.h>
+
+#include "AudioClock.h"
+#include "AudioStreamRecord.h"
+
+using namespace android;
+using namespace aaudio;
+
+AudioStreamRecord::AudioStreamRecord()
+    : AudioStream()
+{
+}
+
+AudioStreamRecord::~AudioStreamRecord()
+{
+    const aaudio_stream_state_t state = getState();
+    bool bad = !(state == AAUDIO_STREAM_STATE_UNINITIALIZED || state == AAUDIO_STREAM_STATE_CLOSED);
+    ALOGE_IF(bad, "stream not closed, in state %d", state);
+}
+
+aaudio_result_t AudioStreamRecord::open(const AudioStreamBuilder& builder)
+{
+    aaudio_result_t result = AAUDIO_OK;
+
+    result = AudioStream::open(builder);
+    if (result != AAUDIO_OK) {
+        return result;
+    }
+
+    // Try to create an AudioRecord
+
+    // TODO Support UNSPECIFIED in AudioTrack. For now, use stereo if unspecified.
+    int32_t samplesPerFrame = (getSamplesPerFrame() == AAUDIO_UNSPECIFIED)
+                              ? 2 : getSamplesPerFrame();
+    audio_channel_mask_t channelMask = audio_channel_in_mask_from_count(samplesPerFrame);
+
+    AudioRecord::callback_t callback = nullptr;
+    audio_input_flags_t flags = (audio_input_flags_t) AUDIO_INPUT_FLAG_NONE;
+
+    size_t frameCount = (builder.getBufferCapacity() == AAUDIO_UNSPECIFIED) ? 0
+                        : builder.getBufferCapacity();
+    // TODO implement an unspecified Android format then use that.
+    audio_format_t format = (getFormat() == AAUDIO_UNSPECIFIED)
+            ? AUDIO_FORMAT_PCM_FLOAT
+            : AAudioConvert_aaudioToAndroidDataFormat(getFormat());
+
+    mAudioRecord = new AudioRecord(
+            AUDIO_SOURCE_DEFAULT,
+            getSampleRate(),
+            format,
+            channelMask,
+            mOpPackageName, // const String16& opPackageName TODO does not compile
+            frameCount,
+            callback,
+            nullptr, //    void* user = nullptr,
+            0,    //    uint32_t notificationFrames = 0,
+            AUDIO_SESSION_ALLOCATE,
+            AudioRecord::TRANSFER_DEFAULT,
+            flags
+            //   int uid = -1,
+            //   pid_t pid = -1,
+            //   const audio_attributes_t* pAttributes = nullptr
+            );
+
+    // Did we get a valid track?
+    status_t status = mAudioRecord->initCheck();
+    if (status != OK) {
+        close();
+        ALOGE("AudioStreamRecord::open(), initCheck() returned %d", status);
+        return AAudioConvert_androidToAAudioResult(status);
+    }
+
+    // Get the actual rate.
+    setSampleRate(mAudioRecord->getSampleRate());
+    setSamplesPerFrame(mAudioRecord->channelCount());
+    setFormat(AAudioConvert_androidToAAudioDataFormat(mAudioRecord->format()));
+
+    setState(AAUDIO_STREAM_STATE_OPEN);
+
+    return AAUDIO_OK;
+}
+
+aaudio_result_t AudioStreamRecord::close()
+{
+    // TODO add close() or release() to AudioRecord API then call it from here
+    if (getState() != AAUDIO_STREAM_STATE_CLOSED) {
+        mAudioRecord.clear();
+        setState(AAUDIO_STREAM_STATE_CLOSED);
+    }
+    return AAUDIO_OK;
+}
+
+aaudio_result_t AudioStreamRecord::requestStart()
+{
+    if (mAudioRecord.get() == nullptr) {
+        return AAUDIO_ERROR_INVALID_STATE;
+    }
+    // Get current position so we can detect when the track is playing.
+    status_t err = mAudioRecord->getPosition(&mPositionWhenStarting);
+    if (err != OK) {
+        return AAudioConvert_androidToAAudioResult(err);
+    }
+    err = mAudioRecord->start();
+    if (err != OK) {
+        return AAudioConvert_androidToAAudioResult(err);
+    } else {
+        setState(AAUDIO_STREAM_STATE_STARTING);
+    }
+    return AAUDIO_OK;
+}
+
+aaudio_result_t AudioStreamRecord::requestPause()
+{
+    return AAUDIO_ERROR_UNIMPLEMENTED;
+}
+
+aaudio_result_t AudioStreamRecord::requestFlush() {
+    return AAUDIO_ERROR_UNIMPLEMENTED;
+}
+
+aaudio_result_t AudioStreamRecord::requestStop() {
+    if (mAudioRecord.get() == nullptr) {
+        return AAUDIO_ERROR_INVALID_STATE;
+    }
+    setState(AAUDIO_STREAM_STATE_STOPPING);
+    mAudioRecord->stop();
+    return AAUDIO_OK;
+}
+
+aaudio_result_t AudioStreamRecord::updateState()
+{
+    aaudio_result_t result = AAUDIO_OK;
+    aaudio_wrapping_frames_t position;
+    status_t err;
+    switch (getState()) {
+    // TODO add better state visibility to AudioRecord
+    case AAUDIO_STREAM_STATE_STARTING:
+        err = mAudioRecord->getPosition(&position);
+        if (err != OK) {
+            result = AAudioConvert_androidToAAudioResult(err);
+        } else if (position != mPositionWhenStarting) {
+            setState(AAUDIO_STREAM_STATE_STARTED);
+        }
+        break;
+    case AAUDIO_STREAM_STATE_STOPPING:
+        if (mAudioRecord->stopped()) {
+            setState(AAUDIO_STREAM_STATE_STOPPED);
+        }
+        break;
+    default:
+        break;
+    }
+    return result;
+}
+
+aaudio_result_t AudioStreamRecord::read(void *buffer,
+                                      int32_t numFrames,
+                                      int64_t timeoutNanoseconds)
+{
+    int32_t bytesPerFrame = getBytesPerFrame();
+    int32_t numBytes;
+    aaudio_result_t result = AAudioConvert_framesToBytes(numFrames, bytesPerFrame, &numBytes);
+    if (result != AAUDIO_OK) {
+        return result;
+    }
+
+    // TODO add timeout to AudioRecord
+    bool blocking = (timeoutNanoseconds > 0);
+    ssize_t bytesRead = mAudioRecord->read(buffer, numBytes, blocking);
+    if (bytesRead == WOULD_BLOCK) {
+        return 0;
+    } else if (bytesRead < 0) {
+        return AAudioConvert_androidToAAudioResult(bytesRead);
+    }
+    int32_t framesRead = (int32_t)(bytesRead / bytesPerFrame);
+    return (aaudio_result_t) framesRead;
+}
+
+aaudio_result_t AudioStreamRecord::setBufferSize(int32_t requestedFrames)
+{
+    return getBufferSize();
+}
+
+int32_t AudioStreamRecord::getBufferSize() const
+{
+    return getBufferCapacity(); // TODO implement in AudioRecord?
+}
+
+int32_t AudioStreamRecord::getBufferCapacity() const
+{
+    return static_cast<int32_t>(mAudioRecord->frameCount());
+}
+
+int32_t AudioStreamRecord::getXRunCount() const
+{
+    return AAUDIO_ERROR_UNIMPLEMENTED; // TODO implement when AudioRecord supports it
+}
+
+int32_t AudioStreamRecord::getFramesPerBurst() const
+{
+    return 192; // TODO add query to AudioRecord.cpp
+}
+
+// TODO implement getTimestamp
+
diff --git a/media/libaaudio/src/legacy/AudioStreamRecord.h b/media/libaaudio/src/legacy/AudioStreamRecord.h
new file mode 100644
index 0000000..c8d389b
--- /dev/null
+++ b/media/libaaudio/src/legacy/AudioStreamRecord.h
@@ -0,0 +1,77 @@
+/*
+ * Copyright 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef LEGACY_AUDIO_STREAM_RECORD_H
+#define LEGACY_AUDIO_STREAM_RECORD_H
+
+#include <media/AudioRecord.h>
+#include <aaudio/AAudio.h>
+
+#include "AudioStreamBuilder.h"
+#include "AudioStream.h"
+#include "AAudioLegacy.h"
+
+namespace aaudio {
+
+/**
+ * Internal stream that uses the legacy AudioTrack path.
+ */
+class AudioStreamRecord : public AudioStream {
+public:
+    AudioStreamRecord();
+
+    virtual ~AudioStreamRecord();
+
+    virtual aaudio_result_t open(const AudioStreamBuilder & builder) override;
+    virtual aaudio_result_t close() override;
+
+    virtual aaudio_result_t requestStart() override;
+    virtual aaudio_result_t requestPause() override;
+    virtual aaudio_result_t requestFlush() override;
+    virtual aaudio_result_t requestStop() override;
+
+    virtual aaudio_result_t getTimestamp(clockid_t clockId,
+                                       int64_t *framePosition,
+                                       int64_t *timeNanoseconds) override {
+        return AAUDIO_ERROR_UNIMPLEMENTED; // TODO
+    }
+
+    virtual aaudio_result_t read(void *buffer,
+                             int32_t numFrames,
+                             int64_t timeoutNanoseconds) override;
+
+    virtual aaudio_result_t setBufferSize(int32_t requestedFrames) override;
+
+    virtual int32_t getBufferSize() const override;
+
+    virtual int32_t getBufferCapacity() const override;
+
+    virtual int32_t getXRunCount() const override;
+
+    virtual int32_t getFramesPerBurst() const override;
+
+    virtual aaudio_result_t updateState() override;
+
+private:
+    android::sp<android::AudioRecord> mAudioRecord;
+    // TODO add 64-bit position reporting to AudioRecord and use it.
+    aaudio_wrapping_frames_t   mPositionWhenStarting = 0;
+    android::String16          mOpPackageName;
+};
+
+} /* namespace aaudio */
+
+#endif /* LEGACY_AUDIO_STREAM_RECORD_H */
diff --git a/media/libaaudio/src/legacy/AudioStreamTrack.cpp b/media/libaaudio/src/legacy/AudioStreamTrack.cpp
new file mode 100644
index 0000000..e0a04c3
--- /dev/null
+++ b/media/libaaudio/src/legacy/AudioStreamTrack.cpp
@@ -0,0 +1,294 @@
+/*
+ * Copyright 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "AudioStreamTrack"
+//#define LOG_NDEBUG 0
+#include <utils/Log.h>
+
+#include <stdint.h>
+#include <media/AudioTrack.h>
+
+#include <aaudio/AAudio.h>
+#include "AudioClock.h"
+#include "AudioStreamTrack.h"
+
+
+using namespace android;
+using namespace aaudio;
+
+/*
+ * Create a stream that uses the AudioTrack.
+ */
+AudioStreamTrack::AudioStreamTrack()
+    : AudioStream()
+{
+}
+
+AudioStreamTrack::~AudioStreamTrack()
+{
+    const aaudio_stream_state_t state = getState();
+    bool bad = !(state == AAUDIO_STREAM_STATE_UNINITIALIZED || state == AAUDIO_STREAM_STATE_CLOSED);
+    ALOGE_IF(bad, "stream not closed, in state %d", state);
+}
+
+aaudio_result_t AudioStreamTrack::open(const AudioStreamBuilder& builder)
+{
+    aaudio_result_t result = AAUDIO_OK;
+
+    result = AudioStream::open(builder);
+    if (result != OK) {
+        return result;
+    }
+
+    // Try to create an AudioTrack
+    // TODO Support UNSPECIFIED in AudioTrack. For now, use stereo if unspecified.
+    int32_t samplesPerFrame = (getSamplesPerFrame() == AAUDIO_UNSPECIFIED)
+                              ? 2 : getSamplesPerFrame();
+    audio_channel_mask_t channelMask = audio_channel_out_mask_from_count(samplesPerFrame);
+    ALOGD("AudioStreamTrack::open(), samplesPerFrame = %d, channelMask = 0x%08x",
+            samplesPerFrame, channelMask);
+
+    AudioTrack::callback_t callback = nullptr;
+    // TODO add more performance options
+    audio_output_flags_t flags = (audio_output_flags_t) AUDIO_OUTPUT_FLAG_FAST;
+    size_t frameCount = (builder.getBufferCapacity() == AAUDIO_UNSPECIFIED) ? 0
+                        : builder.getBufferCapacity();
+    // TODO implement an unspecified AudioTrack format then use that.
+    audio_format_t format = (getFormat() == AAUDIO_UNSPECIFIED)
+            ? AUDIO_FORMAT_PCM_FLOAT
+            : AAudioConvert_aaudioToAndroidDataFormat(getFormat());
+
+    mAudioTrack = new AudioTrack(
+            (audio_stream_type_t) AUDIO_STREAM_MUSIC,
+            getSampleRate(),
+            format,
+            channelMask,
+            frameCount,
+            flags,
+            callback,
+            nullptr,    // user callback data
+            0,          // notificationFrames
+            AUDIO_SESSION_ALLOCATE,
+            AudioTrack::transfer_type::TRANSFER_SYNC // TODO - this does not allow FAST
+            );
+
+    // Did we get a valid track?
+    status_t status = mAudioTrack->initCheck();
+    ALOGD("AudioStreamTrack::open(), initCheck() returned %d", status);
+    if (status != NO_ERROR) {
+        close();
+        ALOGE("AudioStreamTrack::open(), initCheck() returned %d", status);
+        return AAudioConvert_androidToAAudioResult(status);
+    }
+
+    // Get the actual values from the AudioTrack.
+    setSamplesPerFrame(mAudioTrack->channelCount());
+    setSampleRate(mAudioTrack->getSampleRate());
+    setFormat(AAudioConvert_androidToAAudioDataFormat(mAudioTrack->format()));
+
+    setState(AAUDIO_STREAM_STATE_OPEN);
+
+    return AAUDIO_OK;
+}
+
+aaudio_result_t AudioStreamTrack::close()
+{
+    // TODO maybe add close() or release() to AudioTrack API then call it from here
+    if (getState() != AAUDIO_STREAM_STATE_CLOSED) {
+        mAudioTrack.clear(); // TODO is this right?
+        setState(AAUDIO_STREAM_STATE_CLOSED);
+    }
+    return AAUDIO_OK;
+}
+
+aaudio_result_t AudioStreamTrack::requestStart()
+{
+    if (mAudioTrack.get() == nullptr) {
+        return AAUDIO_ERROR_INVALID_STATE;
+    }
+    // Get current position so we can detect when the track is playing.
+    status_t err = mAudioTrack->getPosition(&mPositionWhenStarting);
+    if (err != OK) {
+        return AAudioConvert_androidToAAudioResult(err);
+    }
+    err = mAudioTrack->start();
+    if (err != OK) {
+        return AAudioConvert_androidToAAudioResult(err);
+    } else {
+        setState(AAUDIO_STREAM_STATE_STARTING);
+    }
+    return AAUDIO_OK;
+}
+
+aaudio_result_t AudioStreamTrack::requestPause()
+{
+    if (mAudioTrack.get() == nullptr) {
+        return AAUDIO_ERROR_INVALID_STATE;
+    } else if (getState() != AAUDIO_STREAM_STATE_STARTING
+            && getState() != AAUDIO_STREAM_STATE_STARTED) {
+        ALOGE("requestPause(), called when state is %s", AAudio_convertStreamStateToText(getState()));
+        return AAUDIO_ERROR_INVALID_STATE;
+    }
+    setState(AAUDIO_STREAM_STATE_PAUSING);
+    mAudioTrack->pause();
+    status_t err = mAudioTrack->getPosition(&mPositionWhenPausing);
+    if (err != OK) {
+        return AAudioConvert_androidToAAudioResult(err);
+    }
+    return AAUDIO_OK;
+}
+
+aaudio_result_t AudioStreamTrack::requestFlush() {
+    if (mAudioTrack.get() == nullptr) {
+        return AAUDIO_ERROR_INVALID_STATE;
+    } else if (getState() != AAUDIO_STREAM_STATE_PAUSED) {
+        return AAUDIO_ERROR_INVALID_STATE;
+    }
+    setState(AAUDIO_STREAM_STATE_FLUSHING);
+    incrementFramesRead(getFramesWritten() - getFramesRead());
+    mAudioTrack->flush();
+    mFramesWritten.reset32();
+    return AAUDIO_OK;
+}
+
+aaudio_result_t AudioStreamTrack::requestStop() {
+    if (mAudioTrack.get() == nullptr) {
+        return AAUDIO_ERROR_INVALID_STATE;
+    }
+    setState(AAUDIO_STREAM_STATE_STOPPING);
+    incrementFramesRead(getFramesWritten() - getFramesRead()); // TODO review
+    mAudioTrack->stop();
+    mFramesWritten.reset32();
+    return AAUDIO_OK;
+}
+
+aaudio_result_t AudioStreamTrack::updateState()
+{
+    status_t err;
+    aaudio_wrapping_frames_t position;
+    switch (getState()) {
+    // TODO add better state visibility to AudioTrack
+    case AAUDIO_STREAM_STATE_STARTING:
+        if (mAudioTrack->hasStarted()) {
+            setState(AAUDIO_STREAM_STATE_STARTED);
+        }
+        break;
+    case AAUDIO_STREAM_STATE_PAUSING:
+        if (mAudioTrack->stopped()) {
+            err = mAudioTrack->getPosition(&position);
+            if (err != OK) {
+                return AAudioConvert_androidToAAudioResult(err);
+            } else if (position == mPositionWhenPausing) {
+                // Has stream really stopped advancing?
+                setState(AAUDIO_STREAM_STATE_PAUSED);
+            }
+            mPositionWhenPausing = position;
+        }
+        break;
+    case AAUDIO_STREAM_STATE_FLUSHING:
+        {
+            err = mAudioTrack->getPosition(&position);
+            if (err != OK) {
+                return AAudioConvert_androidToAAudioResult(err);
+            } else if (position == 0) {
+                // Advance frames read to match written.
+                setState(AAUDIO_STREAM_STATE_FLUSHED);
+            }
+        }
+        break;
+    case AAUDIO_STREAM_STATE_STOPPING:
+        if (mAudioTrack->stopped()) {
+            setState(AAUDIO_STREAM_STATE_STOPPED);
+        }
+        break;
+    default:
+        break;
+    }
+    return AAUDIO_OK;
+}
+
+aaudio_result_t AudioStreamTrack::write(const void *buffer,
+                                      int32_t numFrames,
+                                      int64_t timeoutNanoseconds)
+{
+    int32_t bytesPerFrame = getBytesPerFrame();
+    int32_t numBytes;
+    aaudio_result_t result = AAudioConvert_framesToBytes(numFrames, bytesPerFrame, &numBytes);
+    if (result != AAUDIO_OK) {
+        return result;
+    }
+
+    // TODO add timeout to AudioTrack
+    bool blocking = timeoutNanoseconds > 0;
+    ssize_t bytesWritten = mAudioTrack->write(buffer, numBytes, blocking);
+    if (bytesWritten == WOULD_BLOCK) {
+        return 0;
+    } else if (bytesWritten < 0) {
+        ALOGE("invalid write, returned %d", (int)bytesWritten);
+        return AAudioConvert_androidToAAudioResult(bytesWritten);
+    }
+    int32_t framesWritten = (int32_t)(bytesWritten / bytesPerFrame);
+    incrementFramesWritten(framesWritten);
+    return framesWritten;
+}
+
+aaudio_result_t AudioStreamTrack::setBufferSize(int32_t requestedFrames)
+{
+    ssize_t result = mAudioTrack->setBufferSizeInFrames(requestedFrames);
+    if (result < 0) {
+        return AAudioConvert_androidToAAudioResult(result);
+    } else {
+        return result;
+    }
+}
+
+int32_t AudioStreamTrack::getBufferSize() const
+{
+    return static_cast<int32_t>(mAudioTrack->getBufferSizeInFrames());
+}
+
+int32_t AudioStreamTrack::getBufferCapacity() const
+{
+    return static_cast<int32_t>(mAudioTrack->frameCount());
+}
+
+int32_t AudioStreamTrack::getXRunCount() const
+{
+    return static_cast<int32_t>(mAudioTrack->getUnderrunCount());
+}
+
+int32_t AudioStreamTrack::getFramesPerBurst() const
+{
+    return 192; // TODO add query to AudioTrack.cpp
+}
+
+int64_t AudioStreamTrack::getFramesRead() {
+    aaudio_wrapping_frames_t position;
+    status_t result;
+    switch (getState()) {
+    case AAUDIO_STREAM_STATE_STARTING:
+    case AAUDIO_STREAM_STATE_STARTED:
+    case AAUDIO_STREAM_STATE_STOPPING:
+        result = mAudioTrack->getPosition(&position);
+        if (result == OK) {
+            mFramesRead.update32(position);
+        }
+        break;
+    default:
+        break;
+    }
+    return AudioStream::getFramesRead();
+}
diff --git a/media/libaaudio/src/legacy/AudioStreamTrack.h b/media/libaaudio/src/legacy/AudioStreamTrack.h
new file mode 100644
index 0000000..1de07ce
--- /dev/null
+++ b/media/libaaudio/src/legacy/AudioStreamTrack.h
@@ -0,0 +1,77 @@
+/*
+ * Copyright 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef LEGACY_AUDIO_STREAM_TRACK_H
+#define LEGACY_AUDIO_STREAM_TRACK_H
+
+#include <media/AudioTrack.h>
+#include <aaudio/AAudio.h>
+
+#include "AudioStreamBuilder.h"
+#include "AudioStream.h"
+#include "AAudioLegacy.h"
+
+namespace aaudio {
+
+
+/**
+ * Internal stream that uses the legacy AudioTrack path.
+ */
+class AudioStreamTrack : public AudioStream {
+public:
+    AudioStreamTrack();
+
+    virtual ~AudioStreamTrack();
+
+
+    virtual aaudio_result_t open(const AudioStreamBuilder & builder) override;
+    virtual aaudio_result_t close() override;
+
+    virtual aaudio_result_t requestStart() override;
+    virtual aaudio_result_t requestPause() override;
+    virtual aaudio_result_t requestFlush() override;
+    virtual aaudio_result_t requestStop() override;
+
+    virtual aaudio_result_t getTimestamp(clockid_t clockId,
+                                       int64_t *framePosition,
+                                       int64_t *timeNanoseconds) override {
+        return AAUDIO_ERROR_UNIMPLEMENTED; // TODO call getTimestamp(ExtendedTimestamp *timestamp);
+    }
+
+    virtual aaudio_result_t write(const void *buffer,
+                             int32_t numFrames,
+                             int64_t timeoutNanoseconds) override;
+
+    virtual aaudio_result_t setBufferSize(int32_t requestedFrames) override;
+    virtual int32_t getBufferSize() const override;
+    virtual int32_t getBufferCapacity() const override;
+    virtual int32_t getFramesPerBurst()const  override;
+    virtual int32_t getXRunCount() const override;
+
+    virtual int64_t getFramesRead() override;
+
+    virtual aaudio_result_t updateState() override;
+
+private:
+    android::sp<android::AudioTrack> mAudioTrack;
+    // TODO add 64-bit position reporting to AudioRecord and use it.
+    aaudio_wrapping_frames_t         mPositionWhenStarting = 0;
+    aaudio_wrapping_frames_t         mPositionWhenPausing = 0;
+};
+
+} /* namespace aaudio */
+
+#endif /* LEGACY_AUDIO_STREAM_TRACK_H */
diff --git a/media/libaaudio/src/legacy/README.md b/media/libaaudio/src/legacy/README.md
new file mode 100644
index 0000000..8805915
--- /dev/null
+++ b/media/libaaudio/src/legacy/README.md
@@ -0,0 +1,2 @@
+The legacy folder contains the classes that implement AAudio AudioStream on top of
+Android AudioTrack and AudioRecord.
diff --git a/media/libaaudio/src/utility/AAudioUtilities.cpp b/media/libaaudio/src/utility/AAudioUtilities.cpp
new file mode 100644
index 0000000..26fa75d
--- /dev/null
+++ b/media/libaaudio/src/utility/AAudioUtilities.cpp
@@ -0,0 +1,188 @@
+/*
+ * Copyright 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "AAudio"
+//#define LOG_NDEBUG 0
+#include <utils/Log.h>
+
+#include <stdint.h>
+#include <sys/types.h>
+#include <utils/Errors.h>
+
+#include "aaudio/AAudioDefinitions.h"
+#include "AAudioUtilities.h"
+
+using namespace android;
+
+int32_t AAudioConvert_formatToSizeInBytes(aaudio_audio_format_t format) {
+    int32_t size = AAUDIO_ERROR_ILLEGAL_ARGUMENT;
+    switch (format) {
+        case AAUDIO_FORMAT_PCM_I16:
+            size = sizeof(int16_t);
+            break;
+        case AAUDIO_FORMAT_PCM_I32:
+        case AAUDIO_FORMAT_PCM_I8_24:
+            size = sizeof(int32_t);
+            break;
+        case AAUDIO_FORMAT_PCM_FLOAT:
+            size = sizeof(float);
+            break;
+        default:
+            break;
+    }
+    return size;
+}
+
+// TODO This similar to a function in audio_utils. Consider using that instead.
+void AAudioConvert_floatToPcm16(const float *source, int32_t numSamples, int16_t *destination) {
+    for (int i = 0; i < numSamples; i++) {
+        float fval = source[i];
+        fval += 1.0; // to avoid discontinuity at 0.0 caused by truncation
+        fval *= 32768.0f;
+        int32_t sample = (int32_t) fval;
+        // clip to 16-bit range
+        if (sample < 0) sample = 0;
+        else if (sample > 0x0FFFF) sample = 0x0FFFF;
+        sample -= 32768; // center at zero
+        destination[i] = (int16_t) sample;
+    }
+}
+
+void AAudioConvert_pcm16ToFloat(const float *source, int32_t numSamples, int16_t *destination) {
+    for (int i = 0; i < numSamples; i++) {
+        destination[i] = source[i] * (1.0f / 32768.0f);
+    }
+}
+
+status_t AAudioConvert_aaudioToAndroidStatus(aaudio_result_t result) {
+    // This covers the case for AAUDIO_OK and for positive results.
+    if (result >= 0) {
+        return result;
+    }
+    status_t status;
+    switch (result) {
+    case AAUDIO_ERROR_DISCONNECTED:
+    case AAUDIO_ERROR_INVALID_HANDLE:
+        status = DEAD_OBJECT;
+        break;
+    case AAUDIO_ERROR_INVALID_STATE:
+        status = INVALID_OPERATION;
+        break;
+    case AAUDIO_ERROR_UNEXPECTED_VALUE: // TODO redundant?
+    case AAUDIO_ERROR_ILLEGAL_ARGUMENT:
+        status = BAD_VALUE;
+        break;
+    case AAUDIO_ERROR_WOULD_BLOCK:
+        status = WOULD_BLOCK;
+        break;
+    // TODO add more result codes
+    default:
+        status = UNKNOWN_ERROR;
+        break;
+    }
+    return status;
+}
+
+aaudio_result_t AAudioConvert_androidToAAudioResult(status_t status) {
+    // This covers the case for OK and for positive result.
+    if (status >= 0) {
+        return status;
+    }
+    aaudio_result_t result;
+    switch (status) {
+    case BAD_TYPE:
+        result = AAUDIO_ERROR_INVALID_HANDLE;
+        break;
+    case DEAD_OBJECT:
+        result = AAUDIO_ERROR_DISCONNECTED;
+        break;
+    case INVALID_OPERATION:
+        result = AAUDIO_ERROR_INVALID_STATE;
+        break;
+    case BAD_VALUE:
+        result = AAUDIO_ERROR_UNEXPECTED_VALUE;
+        break;
+    case WOULD_BLOCK:
+        result = AAUDIO_ERROR_WOULD_BLOCK;
+        break;
+    // TODO add more status codes
+    default:
+        result = AAUDIO_ERROR_INTERNAL;
+        break;
+    }
+    return result;
+}
+
+audio_format_t AAudioConvert_aaudioToAndroidDataFormat(aaudio_audio_format_t aaudioFormat) {
+    audio_format_t androidFormat;
+    switch (aaudioFormat) {
+    case AAUDIO_FORMAT_PCM_I16:
+        androidFormat = AUDIO_FORMAT_PCM_16_BIT;
+        break;
+    case AAUDIO_FORMAT_PCM_FLOAT:
+        androidFormat = AUDIO_FORMAT_PCM_FLOAT;
+        break;
+    case AAUDIO_FORMAT_PCM_I8_24:
+        androidFormat = AUDIO_FORMAT_PCM_8_24_BIT;
+        break;
+    case AAUDIO_FORMAT_PCM_I32:
+        androidFormat = AUDIO_FORMAT_PCM_32_BIT;
+        break;
+    default:
+        androidFormat = AUDIO_FORMAT_DEFAULT;
+        ALOGE("AAudioConvert_aaudioToAndroidDataFormat 0x%08X unrecognized", aaudioFormat);
+        break;
+    }
+    return androidFormat;
+}
+
+aaudio_audio_format_t AAudioConvert_androidToAAudioDataFormat(audio_format_t androidFormat) {
+    aaudio_audio_format_t aaudioFormat = AAUDIO_FORMAT_INVALID;
+    switch (androidFormat) {
+    case AUDIO_FORMAT_PCM_16_BIT:
+        aaudioFormat = AAUDIO_FORMAT_PCM_I16;
+        break;
+    case AUDIO_FORMAT_PCM_FLOAT:
+        aaudioFormat = AAUDIO_FORMAT_PCM_FLOAT;
+        break;
+    case AUDIO_FORMAT_PCM_32_BIT:
+        aaudioFormat = AAUDIO_FORMAT_PCM_I32;
+        break;
+    case AUDIO_FORMAT_PCM_8_24_BIT:
+        aaudioFormat = AAUDIO_FORMAT_PCM_I8_24;
+        break;
+    default:
+        aaudioFormat = AAUDIO_FORMAT_INVALID;
+        ALOGE("AAudioConvert_androidToAAudioDataFormat 0x%08X unrecognized", androidFormat);
+        break;
+    }
+    return aaudioFormat;
+}
+
+int32_t AAudioConvert_framesToBytes(int32_t numFrames,
+                                            int32_t bytesPerFrame,
+                                            int32_t *sizeInBytes) {
+    // TODO implement more elegantly
+    const int32_t maxChannels = 256; // ridiculously large
+    const int32_t maxBytesPerFrame = maxChannels * sizeof(float);
+    // Prevent overflow by limiting multiplicands.
+    if (bytesPerFrame > maxBytesPerFrame || numFrames > (0x3FFFFFFF / maxBytesPerFrame)) {
+        ALOGE("size overflow, numFrames = %d, frameSize = %zd", numFrames, bytesPerFrame);
+        return AAUDIO_ERROR_OUT_OF_RANGE;
+    }
+    *sizeInBytes = numFrames * bytesPerFrame;
+    return AAUDIO_OK;
+}
diff --git a/media/libaaudio/src/utility/AAudioUtilities.h b/media/libaaudio/src/utility/AAudioUtilities.h
new file mode 100644
index 0000000..d3b5ffe
--- /dev/null
+++ b/media/libaaudio/src/utility/AAudioUtilities.h
@@ -0,0 +1,62 @@
+/*
+ * Copyright 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef UTILITY_AAUDIO_UTILITIES_H
+#define UTILITY_AAUDIO_UTILITIES_H
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <utils/Errors.h>
+#include <hardware/audio.h>
+
+#include "aaudio/AAudioDefinitions.h"
+
+/**
+ * Convert an AAudio result into the closest matching Android status.
+ */
+android::status_t AAudioConvert_aaudioToAndroidStatus(aaudio_result_t result);
+
+/**
+ * Convert an Android status into the closest matching AAudio result.
+ */
+aaudio_result_t AAudioConvert_androidToAAudioResult(android::status_t status);
+
+void AAudioConvert_floatToPcm16(const float *source, int32_t numSamples, int16_t *destination);
+
+void AAudioConvert_pcm16ToFloat(const int16_t *source, int32_t numSamples, float *destination);
+
+/**
+ * Calculate the number of bytes and prevent numeric overflow.
+ * @param numFrames frame count
+ * @param bytesPerFrame size of a frame in bytes
+ * @param sizeInBytes total size in bytes
+ * @return AAUDIO_OK or negative error, eg. AAUDIO_ERROR_OUT_OF_RANGE
+ */
+int32_t AAudioConvert_framesToBytes(int32_t numFrames,
+                                            int32_t bytesPerFrame,
+                                            int32_t *sizeInBytes);
+
+audio_format_t AAudioConvert_aaudioToAndroidDataFormat(aaudio_audio_format_t aaudio_format);
+
+aaudio_audio_format_t AAudioConvert_androidToAAudioDataFormat(audio_format_t format);
+
+/**
+ * @return the size of a sample of the given format in bytes or AAUDIO_ERROR_ILLEGAL_ARGUMENT
+ */
+int32_t AAudioConvert_formatToSizeInBytes(aaudio_audio_format_t format);
+
+#endif //UTILITY_AAUDIO_UTILITIES_H
diff --git a/media/libaaudio/src/utility/AudioClock.h b/media/libaaudio/src/utility/AudioClock.h
new file mode 100644
index 0000000..952c7b8
--- /dev/null
+++ b/media/libaaudio/src/utility/AudioClock.h
@@ -0,0 +1,104 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef UTILITY_AUDIO_CLOCK_H
+#define UTILITY_AUDIO_CLOCK_H
+
+#include <stdint.h>
+#include <time.h>
+
+#include <aaudio/AAudioDefinitions.h>
+
+// Time conversion constants.
+#define AAUDIO_NANOS_PER_MICROSECOND ((int64_t)1000)
+#define AAUDIO_NANOS_PER_MILLISECOND (AAUDIO_NANOS_PER_MICROSECOND * 1000)
+#define AAUDIO_MILLIS_PER_SECOND     1000
+#define AAUDIO_NANOS_PER_SECOND      (AAUDIO_NANOS_PER_MILLISECOND * AAUDIO_MILLIS_PER_SECOND)
+
+class AudioClock {
+public:
+    static int64_t getNanoseconds(clockid_t clockId = CLOCK_MONOTONIC) {
+        struct timespec time;
+        int result = clock_gettime(clockId, &time);
+        if (result < 0) {
+            return -errno;
+        }
+        return (time.tv_sec * AAUDIO_NANOS_PER_SECOND) + time.tv_nsec;
+    }
+
+    /**
+     * Sleep until the specified absolute time.
+     * Return immediately with AAUDIO_ERROR_ILLEGAL_ARGUMENT if a negative
+     * nanoTime is specified.
+     *
+     * @param nanoTime time to wake up
+     * @param clockId CLOCK_MONOTONIC is default
+     * @return 0, a negative error, or 1 if the call is interrupted by a signal handler (EINTR)
+     */
+    static int sleepUntilNanoTime(int64_t nanoTime,
+                                  clockid_t clockId = CLOCK_MONOTONIC) {
+        if (nanoTime > 0) {
+            struct timespec time;
+            time.tv_sec = nanoTime / AAUDIO_NANOS_PER_SECOND;
+            // Calculate the fractional nanoseconds. Avoids expensive % operation.
+            time.tv_nsec = nanoTime - (time.tv_sec * AAUDIO_NANOS_PER_SECOND);
+            int err = clock_nanosleep(clockId, TIMER_ABSTIME, &time, nullptr);
+            switch (err) {
+            case EINTR:
+                return 1;
+            case 0:
+                return 0;
+            default:
+                // Subtract because clock_nanosleep() returns a positive error number!
+                return 0 - err;
+            }
+        } else {
+            return AAUDIO_ERROR_ILLEGAL_ARGUMENT;
+        }
+    }
+
+    /**
+     * Sleep for the specified number of relative nanoseconds in real-time.
+     * Return immediately with 0 if a negative nanoseconds is specified.
+     *
+     * @param nanoseconds time to sleep
+     * @param clockId CLOCK_MONOTONIC is default
+     * @return 0, a negative error, or 1 if the call is interrupted by a signal handler (EINTR)
+     */
+    static int sleepForNanos(int64_t nanoseconds, clockid_t clockId = CLOCK_MONOTONIC) {
+        if (nanoseconds > 0) {
+            struct timespec time;
+            time.tv_sec = nanoseconds / AAUDIO_NANOS_PER_SECOND;
+            // Calculate the fractional nanoseconds. Avoids expensive % operation.
+            time.tv_nsec = nanoseconds - (time.tv_sec * AAUDIO_NANOS_PER_SECOND);
+            const int flags = 0; // documented as relative sleep
+            int err = clock_nanosleep(clockId, flags, &time, nullptr);
+            switch (err) {
+            case EINTR:
+                return 1;
+            case 0:
+                return 0;
+            default:
+                // Subtract because clock_nanosleep() returns a positive error number!
+                return 0 - err;
+            }
+        }
+        return 0;
+    }
+};
+
+
+#endif // UTILITY_AUDIO_CLOCK_H
diff --git a/media/libaaudio/src/utility/HandleTracker.cpp b/media/libaaudio/src/utility/HandleTracker.cpp
new file mode 100644
index 0000000..c4880b8
--- /dev/null
+++ b/media/libaaudio/src/utility/HandleTracker.cpp
@@ -0,0 +1,231 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+#define LOG_TAG "AAudio"
+//#define LOG_NDEBUG 0
+#include <utils/Log.h>
+
+#include <assert.h>
+#include <new>
+#include <stdint.h>
+#include <utils/Mutex.h>
+
+#include <aaudio/AAudioDefinitions.h>
+#include "HandleTracker.h"
+
+using android::Mutex;
+
+// Handle format is: tgggiiii
+// where each letter is 4 bits, t=type, g=generation, i=index
+
+#define TYPE_SIZE           4
+#define GENERATION_SIZE    12
+#define INDEX_SIZE         16
+
+#define GENERATION_INVALID  0
+#define GENERATION_SHIFT    INDEX_SIZE
+
+#define TYPE_MASK           ((1 << TYPE_SIZE) - 1)
+#define GENERATION_MASK     ((1 << GENERATION_SIZE) - 1)
+#define INDEX_MASK          ((1 << INDEX_SIZE) - 1)
+
+#define SLOT_UNAVAILABLE    (-1)
+
+// Error if handle is negative so type is limited to bottom half.
+#define HANDLE_INVALID_TYPE TYPE_MASK
+
+static_assert(HANDLE_TRACKER_MAX_TYPES == (1 << (TYPE_SIZE - 1)),
+    "Mismatch between header and cpp.");
+static_assert(HANDLE_TRACKER_MAX_HANDLES == (1 << (INDEX_SIZE)),
+    "Mismatch between header and cpp.");
+
+HandleTracker::HandleTracker(uint32_t maxHandles)
+        : mMaxHandleCount(maxHandles)
+        , mHandleHeaders(nullptr)
+{
+    assert(maxHandles <= HANDLE_TRACKER_MAX_HANDLES);
+    // Allocate arrays to hold addresses and validation info.
+    mHandleAddresses = (handle_tracker_address_t *)
+            new(std::nothrow) handle_tracker_address_t[maxHandles];
+    if (mHandleAddresses != nullptr) {
+        mHandleHeaders = new(std::nothrow) handle_tracker_header_t[maxHandles];
+
+        if (mHandleHeaders != nullptr) {
+            handle_tracker_header_t initialHeader = buildHeader(0, 1);
+            // Initialize linked list of free nodes. nullptr terminated.
+            for (uint32_t i = 0; i < (maxHandles - 1); i++) {
+                mHandleAddresses[i] = &mHandleAddresses[i + 1]; // point to next node
+                mHandleHeaders[i] = initialHeader;
+            }
+            mNextFreeAddress = &mHandleAddresses[0];
+            mHandleAddresses[maxHandles - 1] = nullptr;
+            mHandleHeaders[maxHandles - 1] = 0;
+        } else {
+            delete[] mHandleAddresses; // so the class appears uninitialized
+            mHandleAddresses = nullptr;
+        }
+    }
+}
+
+HandleTracker::~HandleTracker()
+{
+    Mutex::Autolock _l(mLock);
+    delete[] mHandleAddresses;
+    delete[] mHandleHeaders;
+    mHandleAddresses = nullptr;
+}
+
+bool HandleTracker::isInitialized() const {
+    return mHandleAddresses != nullptr;
+}
+
+handle_tracker_slot_t HandleTracker::allocateSlot_l() {
+    void **allocated = mNextFreeAddress;
+    if (allocated == nullptr) {
+        return SLOT_UNAVAILABLE;
+    }
+    // Remove this slot from the head of the linked list.
+    mNextFreeAddress = (void **) *allocated;
+    return (allocated - mHandleAddresses);
+}
+
+handle_tracker_generation_t HandleTracker::nextGeneration_l(handle_tracker_slot_t index) {
+    handle_tracker_generation_t generation = (mHandleHeaders[index] + 1) & GENERATION_MASK;
+    // Avoid generation zero so that 0x0 is not a valid handle.
+    if (generation == GENERATION_INVALID) {
+        generation++;
+    }
+    return generation;
+}
+
+aaudio_handle_t HandleTracker::put(handle_tracker_type_t type, void *address)
+{
+    if (type < 0 || type >= HANDLE_TRACKER_MAX_TYPES) {
+        return static_cast<aaudio_handle_t>(AAUDIO_ERROR_OUT_OF_RANGE);
+    }
+    if (!isInitialized()) {
+        return static_cast<aaudio_handle_t>(AAUDIO_ERROR_NO_MEMORY);
+    }
+
+    Mutex::Autolock _l(mLock);
+
+    // Find an empty slot.
+    handle_tracker_slot_t index = allocateSlot_l();
+    if (index == SLOT_UNAVAILABLE) {
+        ALOGE("HandleTracker::put() no room for more handles");
+        return static_cast<aaudio_handle_t>(AAUDIO_ERROR_NO_FREE_HANDLES);
+    }
+
+    // Cycle the generation counter so stale handles can be detected.
+    handle_tracker_generation_t generation = nextGeneration_l(index); // reads header table
+    handle_tracker_header_t inputHeader = buildHeader(type, generation);
+
+    // These two writes may need to be observed by other threads or cores during get().
+    mHandleHeaders[index] = inputHeader;
+    mHandleAddresses[index] = address;
+    // TODO use store release to enforce memory order with get()
+
+    // Generate a handle.
+    aaudio_handle_t handle = buildHandle(inputHeader, index);
+
+    ALOGV("HandleTracker::put(%p) returns 0x%08x", address, handle);
+    return handle;
+}
+
+handle_tracker_slot_t HandleTracker::handleToIndex(handle_tracker_type_t type,
+                                                   aaudio_handle_t handle) const
+{
+    // Validate the handle.
+    handle_tracker_slot_t index = extractIndex(handle);
+    if (index >= mMaxHandleCount) {
+        ALOGE("HandleTracker::handleToIndex() invalid handle = 0x%08X", handle);
+        return static_cast<aaudio_handle_t>(AAUDIO_ERROR_INVALID_HANDLE);
+    }
+    handle_tracker_generation_t handleGeneration = extractGeneration(handle);
+    handle_tracker_header_t inputHeader = buildHeader(type, handleGeneration);
+    // We do not need to synchronize this access to mHandleHeaders because it is constant for
+    // the lifetime of the handle.
+    if (inputHeader != mHandleHeaders[index]) {
+        ALOGE("HandleTracker::handleToIndex() inputHeader = 0x%08x != mHandleHeaders[%d] = 0x%08x",
+             inputHeader, index, mHandleHeaders[index]);
+        return static_cast<aaudio_handle_t>(AAUDIO_ERROR_INVALID_HANDLE);
+    }
+    return index;
+}
+
+handle_tracker_address_t HandleTracker::get(handle_tracker_type_t type, aaudio_handle_t handle) const
+{
+    if (!isInitialized()) {
+        return nullptr;
+    }
+    handle_tracker_slot_t index = handleToIndex(type, handle);
+    if (index >= 0) {
+        // We do not need to synchronize this access to mHandleHeaders because this slot
+        // is allocated and, therefore, not part of the linked list of free slots.
+        return mHandleAddresses[index];
+    } else {
+        return nullptr;
+    }
+}
+
+handle_tracker_address_t HandleTracker::remove(handle_tracker_type_t type, aaudio_handle_t handle) {
+    if (!isInitialized()) {
+        return nullptr;
+    }
+
+    Mutex::Autolock _l(mLock);
+
+    handle_tracker_slot_t index = handleToIndex(type,handle);
+    if (index >= 0) {
+        handle_tracker_address_t address = mHandleAddresses[index];
+
+        // Invalidate the header type but preserve the generation count.
+        handle_tracker_generation_t generation = mHandleHeaders[index] & GENERATION_MASK;
+        handle_tracker_header_t inputHeader = buildHeader(
+                (handle_tracker_type_t) HANDLE_INVALID_TYPE, generation);
+        mHandleHeaders[index] = inputHeader;
+
+        // Add this slot to the head of the linked list.
+        mHandleAddresses[index] = mNextFreeAddress;
+        mNextFreeAddress = (handle_tracker_address_t *) &mHandleAddresses[index];
+        return address;
+    } else {
+        return nullptr;
+    }
+}
+
+aaudio_handle_t HandleTracker::buildHandle(handle_tracker_header_t typeGeneration,
+                                         handle_tracker_slot_t index) {
+    return (aaudio_handle_t)((typeGeneration << GENERATION_SHIFT) | (index & INDEX_MASK));
+}
+
+handle_tracker_header_t HandleTracker::buildHeader(handle_tracker_type_t type,
+                                    handle_tracker_generation_t generation)
+{
+    return (handle_tracker_header_t) (((type & TYPE_MASK) << GENERATION_SIZE)
+        | (generation & GENERATION_MASK));
+}
+
+handle_tracker_slot_t HandleTracker::extractIndex(aaudio_handle_t handle)
+{
+    return handle & INDEX_MASK;
+}
+
+handle_tracker_generation_t HandleTracker::extractGeneration(aaudio_handle_t handle)
+{
+    return (handle >> GENERATION_SHIFT) & GENERATION_MASK;
+}
diff --git a/media/libaaudio/src/utility/HandleTracker.h b/media/libaaudio/src/utility/HandleTracker.h
new file mode 100644
index 0000000..23a73ed
--- /dev/null
+++ b/media/libaaudio/src/utility/HandleTracker.h
@@ -0,0 +1,151 @@
+/*
+ * Copyright 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef UTILITY_HANDLE_TRACKER_H
+#define UTILITY_HANDLE_TRACKER_H
+
+#include <stdint.h>
+#include <utils/Mutex.h>
+
+typedef int32_t  aaudio_handle_t;
+typedef int32_t  handle_tracker_type_t;       // what kind of handle
+typedef int32_t  handle_tracker_slot_t;       // index in allocation table
+typedef int32_t  handle_tracker_generation_t; // incremented when slot used
+typedef uint16_t handle_tracker_header_t;     // combines type and generation
+typedef void    *handle_tracker_address_t;    // address of something that is stored here
+
+#define HANDLE_TRACKER_MAX_TYPES    (1 << 3)
+#define HANDLE_TRACKER_MAX_HANDLES  (1 << 16)
+
+/**
+ * Represent Objects using an integer handle that can be used with Java.
+ * This also makes the 'C' ABI more robust.
+ *
+ * Note that this should only be called from a single thread.
+ * If you call it from more than one thread then you need to use your own mutex.
+ */
+class HandleTracker {
+
+public:
+    /**
+     * @param maxHandles cannot exceed HANDLE_TRACKER_MAX_HANDLES
+     */
+    HandleTracker(uint32_t maxHandles = 256);
+    virtual ~HandleTracker();
+
+    /**
+     * Don't use if this returns false;
+     * @return true if the internal allocation succeeded
+     */
+    bool isInitialized() const;
+
+    /**
+     * Store a pointer and return a handle that can be used to retrieve the pointer.
+     *
+     * It is safe to call put() or remove() from multiple threads.
+     *
+     * @param expectedType the type of the object to be tracked
+     * @param address pointer to be converted to a handle
+     * @return a valid handle or a negative error
+     */
+    aaudio_handle_t put(handle_tracker_type_t expectedType, handle_tracker_address_t address);
+
+    /**
+     * Get the original pointer associated with the handle.
+     * The handle will be validated to prevent stale handles from being reused.
+     * Note that the validation is designed to prevent common coding errors and not
+     * to prevent deliberate hacking.
+     *
+     * @param expectedType shouldmatch the type we passed to put()
+     * @param handle to be converted to a pointer
+     * @return address associated with handle or nullptr
+     */
+    handle_tracker_address_t get(handle_tracker_type_t expectedType, aaudio_handle_t handle) const;
+
+    /**
+     * Free up the storage associated with the handle.
+     * Subsequent attempts to use the handle will fail.
+     *
+     * Do NOT remove() a handle while get() is being called for the same handle from another thread.
+     *
+     * @param expectedType shouldmatch the type we passed to put()
+     * @param handle to be removed from tracking
+     * @return address associated with handle or nullptr if not found
+     */
+    handle_tracker_address_t remove(handle_tracker_type_t expectedType, aaudio_handle_t handle);
+
+private:
+    const int32_t               mMaxHandleCount;   // size of array
+    // This address is const after initialization.
+    handle_tracker_address_t  * mHandleAddresses;  // address of objects or a free linked list node
+    // This address is const after initialization.
+    handle_tracker_header_t   * mHandleHeaders;    // combination of type and generation
+    // head of the linked list of free nodes in mHandleAddresses
+    handle_tracker_address_t  * mNextFreeAddress;
+
+    // This Mutex protects the linked list of free nodes.
+    // The list is managed using mHandleAddresses and mNextFreeAddress.
+    // The data in mHandleHeaders is only changed by put() and remove().
+    android::Mutex              mLock;
+
+    /**
+     * Pull slot off of a list of empty slots.
+     * @return index or a negative error
+     */
+    handle_tracker_slot_t allocateSlot_l();
+
+    /**
+     * Increment the generation for the slot, avoiding zero.
+     */
+    handle_tracker_generation_t nextGeneration_l(handle_tracker_slot_t index);
+
+    /**
+     * Validate the handle and return the corresponding index.
+     * @return slot index or a negative error
+     */
+    handle_tracker_slot_t handleToIndex(aaudio_handle_t handle, handle_tracker_type_t type) const;
+
+    /**
+     * Construct a handle from a header and an index.
+     * @param header combination of a type and a generation
+     * @param index slot index returned from allocateSlot
+     * @return handle or a negative error
+     */
+    static aaudio_handle_t buildHandle(handle_tracker_header_t header, handle_tracker_slot_t index);
+
+    /**
+     * Combine a type and a generation field into a header.
+     */
+    static handle_tracker_header_t buildHeader(handle_tracker_type_t type,
+                handle_tracker_generation_t generation);
+
+    /**
+     * Extract the index from a handle.
+     * Does not validate the handle.
+     * @return index associated with a handle
+     */
+    static handle_tracker_slot_t extractIndex(aaudio_handle_t handle);
+
+    /**
+     * Extract the generation from a handle.
+     * Does not validate the handle.
+     * @return generation associated with a handle
+     */
+    static handle_tracker_generation_t extractGeneration(aaudio_handle_t handle);
+
+};
+
+#endif //UTILITY_HANDLE_TRACKER_H
diff --git a/media/libaaudio/src/utility/MonotonicCounter.h b/media/libaaudio/src/utility/MonotonicCounter.h
new file mode 100644
index 0000000..81d7f89
--- /dev/null
+++ b/media/libaaudio/src/utility/MonotonicCounter.h
@@ -0,0 +1,91 @@
+/*
+ * Copyright 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef UTILITY_MONOTONIC_COUNTER_H
+#define UTILITY_MONOTONIC_COUNTER_H
+
+#include <stdint.h>
+
+/**
+ * Maintain a 64-bit monotonic counter.
+ * Can be used to track a 32-bit counter that wraps or gets reset.
+ *
+ * Note that this is not atomic and has no interior locks.
+ * A caller will need to provide their own exterior locking
+ * if they need to use it from multiple threads.
+ */
+class MonotonicCounter {
+
+public:
+    MonotonicCounter() {};
+    virtual ~MonotonicCounter() {};
+
+    /**
+     * @return current value of the counter
+     */
+    int64_t get() const {
+        return mCounter64;
+    }
+
+    /**
+     * Advance the counter if delta is positive.
+     * @return current value of the counter
+     */
+    int64_t increment(int64_t delta) {
+        if (delta > 0) {
+            mCounter64 += delta;
+        }
+        return mCounter64;
+    }
+
+    /**
+     * Advance the 64-bit counter if (current32 - previousCurrent32) > 0.
+     * This can be used to convert a 32-bit counter that may be wrapping into
+     * a monotonic 64-bit counter.
+     *
+     * This counter32 should NOT be allowed to advance by more than 0x7FFFFFFF between calls.
+     * Think of the wrapping counter like a sine wave. If the frequency of the signal
+     * is more than half the sampling rate (Nyquist rate) then you cannot measure it properly.
+     * If the counter wraps around every 24 hours then we should measure it with a period
+     * of less than 12 hours.
+     *
+     * @return current value of the 64-bit counter
+     */
+    int64_t update32(int32_t counter32) {
+        int32_t delta = counter32 - mCounter32;
+        // protect against the mCounter64 going backwards
+        if (delta > 0) {
+            mCounter64 += delta;
+            mCounter32 = counter32;
+        }
+        return mCounter64;
+    }
+
+    /**
+     * Reset the stored value of the 32-bit counter.
+     * This is used if your counter32 has been reset to zero.
+     */
+    void reset32() {
+        mCounter32 = 0;
+    }
+
+private:
+    int64_t mCounter64 = 0;
+    int32_t mCounter32 = 0;
+};
+
+
+#endif //UTILITY_MONOTONIC_COUNTER_H
diff --git a/media/libaaudio/src/utility/README.md b/media/libaaudio/src/utility/README.md
new file mode 100644
index 0000000..0ac74ea
--- /dev/null
+++ b/media/libaaudio/src/utility/README.md
@@ -0,0 +1,3 @@
+The utility folder contains things that may be shared between the AAudio client and server.
+They might also be handy outside AAudio.
+They generally do not depend on AAudio functionality.
diff --git a/media/libaaudio/tests/Android.mk b/media/libaaudio/tests/Android.mk
new file mode 100644
index 0000000..7899cf5
--- /dev/null
+++ b/media/libaaudio/tests/Android.mk
@@ -0,0 +1,29 @@
+LOCAL_PATH := $(call my-dir)
+
+include $(CLEAR_VARS)
+LOCAL_C_INCLUDES := \
+    $(call include-path-for, audio-utils) \
+    frameworks/av/media/libaaudio/include \
+    frameworks/av/media/libaaudio/src/core \
+    frameworks/av/media/libaaudio/src/utility
+LOCAL_SRC_FILES:= test_handle_tracker.cpp
+LOCAL_SHARED_LIBRARIES := libaudioclient libaudioutils libbinder \
+                          libcutils liblog libmedia libutils
+LOCAL_STATIC_LIBRARIES := libaaudio
+LOCAL_MODULE := test_handle_tracker
+include $(BUILD_NATIVE_TEST)
+
+include $(CLEAR_VARS)
+LOCAL_C_INCLUDES := \
+    $(call include-path-for, audio-utils) \
+    frameworks/av/media/libaaudio/include \
+    frameworks/av/media/libaaudio/src \
+    frameworks/av/media/libaaudio/src/core \
+    frameworks/av/media/libaaudio/src/fifo \
+    frameworks/av/media/libaaudio/src/utility
+LOCAL_SRC_FILES:= test_marshalling.cpp
+LOCAL_SHARED_LIBRARIES := libaudioclient libaudioutils libbinder \
+                          libcutils liblog libmedia libutils
+LOCAL_STATIC_LIBRARIES := libaaudio
+LOCAL_MODULE := test_marshalling
+include $(BUILD_NATIVE_TEST)
diff --git a/media/libaaudio/tests/test_handle_tracker.cpp b/media/libaaudio/tests/test_handle_tracker.cpp
new file mode 100644
index 0000000..e51c39c
--- /dev/null
+++ b/media/libaaudio/tests/test_handle_tracker.cpp
@@ -0,0 +1,117 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// Unit tests for AAudio Handle Tracker
+
+#include <stdlib.h>
+#include <math.h>
+
+#include <gtest/gtest.h>
+
+#include <aaudio/AAudioDefinitions.h>
+#include "HandleTracker.h"
+
+// Test adding one address.
+TEST(test_handle_tracker, aaudio_handle_tracker) {
+    const int MAX_HANDLES = 4;
+    HandleTracker tracker(MAX_HANDLES);
+    handle_tracker_type_t type = 3; // arbitrary generic type
+    int data; // something that has an address we can use
+    handle_tracker_address_t found;
+
+    // repeat the test several times to see if it breaks
+    const int SEVERAL = 5; // arbitrary
+    for (int i = 0; i < SEVERAL; i++) {
+        // should fail to find a bogus handle
+        found = tracker.get(type, 0);  // bad handle
+        EXPECT_EQ(nullptr, found);
+
+        // create a valid handle and use it to lookup the object again
+        aaudio_handle_t dataHandle = tracker.put(type, &data);
+        ASSERT_TRUE(dataHandle > 0);
+        found = tracker.get(type, dataHandle);
+        EXPECT_EQ(&data, found);
+        found = tracker.get(type, 0); // bad handle
+        EXPECT_EQ(nullptr, found);
+
+        // wrong type
+        found = tracker.get(type+1, dataHandle);
+        EXPECT_EQ(nullptr, found);
+
+        // remove from storage
+        found = tracker.remove(type, dataHandle);
+        EXPECT_EQ(&data, found);
+        // should fail the second time
+        found = tracker.remove(type, dataHandle);
+        EXPECT_EQ(nullptr, found);
+    }
+}
+
+// Test filling the tracker.
+TEST(test_handle_tracker, aaudio_full_up) {
+    const int MAX_HANDLES = 5;
+    HandleTracker tracker(MAX_HANDLES);
+    handle_tracker_type_t type = 4; // arbitrary generic type
+    int data[MAX_HANDLES];
+    aaudio_handle_t handles[MAX_HANDLES];
+    handle_tracker_address_t found;
+
+    // repeat the test several times to see if it breaks
+    const int SEVERAL = 5; // arbitrary
+    for (int i = 0; i < SEVERAL; i++) {
+        for (int i = 0; i < MAX_HANDLES; i++) {
+            // add a handle
+            handles[i] = tracker.put(type, &data[i]);
+            ASSERT_TRUE(handles[i] > 0);
+            found = tracker.get(type, handles[i]);
+            EXPECT_EQ(&data[i], found);
+        }
+
+        // Now that it is full, try to add one more.
+        aaudio_handle_t handle = tracker.put(type, &data[0]);
+        EXPECT_TRUE(handle < 0);
+
+        for (int i = 0; i < MAX_HANDLES; i++) {
+            // look up each handle
+            found = tracker.get(type, handles[i]);
+            EXPECT_EQ(&data[i], found);
+        }
+
+        // remove one from storage
+        found = tracker.remove(type, handles[2]);
+        EXPECT_EQ(&data[2], found);
+        // now try to look up the same handle and fail
+        found = tracker.get(type, handles[2]);
+        EXPECT_EQ(nullptr, found);
+
+        // add that same one back
+        handle = tracker.put(type, &data[2]);
+        ASSERT_TRUE(handle > 0);
+        found = tracker.get(type, handle);
+        EXPECT_EQ(&data[2], found);
+        // now use a stale handle again with a valid index and fail
+        found = tracker.get(type, handles[2]);
+        EXPECT_EQ(nullptr, found);
+
+        // remove them all
+        handles[2] = handle;
+        for (int i = 0; i < MAX_HANDLES; i++) {
+            // look up each handle
+            found = tracker.remove(type, handles[i]);
+            EXPECT_EQ(&data[i], found);
+        }
+    }
+}
diff --git a/media/libaaudio/tests/test_marshalling.cpp b/media/libaaudio/tests/test_marshalling.cpp
new file mode 100644
index 0000000..b1f77c0
--- /dev/null
+++ b/media/libaaudio/tests/test_marshalling.cpp
@@ -0,0 +1,166 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// Unit tests for AAudio Marshalling of RingBuffer information.
+
+#include <stdlib.h>
+#include <math.h>
+
+#include <binder/Parcel.h>
+#include <binder/Parcelable.h>
+#include <cutils/ashmem.h>
+#include <gtest/gtest.h>
+#include <sys/mman.h>
+
+#include <aaudio/AAudioDefinitions.h>
+#include <binding/AudioEndpointParcelable.h>
+
+using namespace android;
+using namespace aaudio;
+
+// Test adding one value.
+TEST(test_marshalling, aaudio_one_read_write) {
+    Parcel parcel;
+    size_t pos = parcel.dataPosition();
+    const int arbitraryValue = 235;
+    parcel.writeInt32(arbitraryValue);
+    parcel.setDataPosition(pos);
+    int32_t y;
+    parcel.readInt32(&y);
+    EXPECT_EQ(arbitraryValue, y);
+}
+
+// Test SharedMemoryParcel.
+TEST(test_marshalling, aaudio_shared_memory) {
+    SharedMemoryParcelable sharedMemoryA;
+    SharedMemoryParcelable sharedMemoryB;
+    const size_t memSizeBytes = 840;
+    int fd = ashmem_create_region("TestMarshalling", memSizeBytes);
+    ASSERT_LE(0, fd);
+    sharedMemoryA.setup(fd, memSizeBytes);
+    void *region1;
+    EXPECT_EQ(AAUDIO_OK, sharedMemoryA.resolve(0, 16, &region1)); // fits in region
+    EXPECT_NE(AAUDIO_OK, sharedMemoryA.resolve(-2, 16, &region1)); // offset is negative
+    EXPECT_NE(AAUDIO_OK, sharedMemoryA.resolve(0, memSizeBytes + 8, &region1)); // size too big
+    EXPECT_NE(AAUDIO_OK, sharedMemoryA.resolve(memSizeBytes - 8, 16, &region1)); // goes past the end
+    int32_t *buffer1 = (int32_t *)region1;
+    buffer1[0] = 98735; // arbitrary value
+
+    Parcel parcel;
+    size_t pos = parcel.dataPosition();
+    sharedMemoryA.writeToParcel(&parcel);
+
+    parcel.setDataPosition(pos);
+    sharedMemoryB.readFromParcel(&parcel);
+    EXPECT_EQ(sharedMemoryA.getSizeInBytes(), sharedMemoryB.getSizeInBytes());
+
+    // should see same value at two different addresses
+    void *region2;
+    EXPECT_EQ(AAUDIO_OK, sharedMemoryB.resolve(0, 16, &region2));
+    int32_t *buffer2 = (int32_t *)region2;
+    EXPECT_NE(buffer1, buffer2);
+    EXPECT_EQ(buffer1[0], buffer2[0]);
+}
+
+// Test SharedRegionParcel.
+TEST(test_marshalling, aaudio_shared_region) {
+    SharedMemoryParcelable sharedMemories[2];
+    SharedRegionParcelable sharedRegionA;
+    SharedRegionParcelable sharedRegionB;
+    const size_t memSizeBytes = 840;
+    int fd = ashmem_create_region("TestMarshalling", memSizeBytes);
+    ASSERT_LE(0, fd);
+    sharedMemories[0].setup(fd, memSizeBytes);
+    int32_t regionOffset1 = 32;
+    int32_t regionSize1 = 16;
+    sharedRegionA.setup(0, regionOffset1, regionSize1);
+
+    void *region1;
+    EXPECT_EQ(AAUDIO_OK, sharedRegionA.resolve(sharedMemories, &region1));
+    int32_t *buffer1 = (int32_t *)region1;
+    buffer1[0] = 336677; // arbitrary value
+
+    Parcel parcel;
+    size_t pos = parcel.dataPosition();
+    sharedRegionA.writeToParcel(&parcel);
+
+    parcel.setDataPosition(pos);
+    sharedRegionB.readFromParcel(&parcel);
+
+    // should see same value
+    void *region2;
+    EXPECT_EQ(AAUDIO_OK, sharedRegionB.resolve(sharedMemories, &region2));
+    int32_t *buffer2 = (int32_t *)region2;
+    EXPECT_EQ(buffer1[0], buffer2[0]);
+}
+
+// Test RingBufferParcelable.
+TEST(test_marshalling, aaudio_ring_buffer_parcelable) {
+    SharedMemoryParcelable sharedMemories[2];
+    RingBufferParcelable ringBufferA;
+    RingBufferParcelable ringBufferB;
+
+    const size_t bytesPerFrame = 8;
+    const size_t framesPerBurst = 32;
+    const size_t dataSizeBytes = 2048;
+    const int32_t counterSizeBytes = sizeof(int64_t);
+    const size_t memSizeBytes = dataSizeBytes + (2 * counterSizeBytes);
+
+    int fd = ashmem_create_region("TestMarshalling", memSizeBytes);
+    ASSERT_LE(0, fd);
+    sharedMemories[0].setup(fd, memSizeBytes);
+
+    int32_t sharedMemoryIndex = 0;
+    // arrange indices and data in the shared memory
+    int32_t readOffset = 0;
+    int32_t writeOffset = readOffset + counterSizeBytes;
+    int32_t dataOffset = writeOffset + counterSizeBytes;
+    ringBufferA.setupMemory(sharedMemoryIndex, dataOffset, dataSizeBytes,
+        readOffset, writeOffset, counterSizeBytes);
+    ringBufferA.setFramesPerBurst(framesPerBurst);
+    ringBufferA.setBytesPerFrame(bytesPerFrame);
+    ringBufferA.setCapacityInFrames(dataSizeBytes / bytesPerFrame);
+
+    // setup A
+    RingBufferDescriptor descriptorA;
+    EXPECT_EQ(AAUDIO_OK, ringBufferA.resolve(sharedMemories, &descriptorA));
+    descriptorA.dataAddress[0] = 95;
+    descriptorA.dataAddress[1] = 57;
+    descriptorA.readCounterAddress[0] = 17;
+    descriptorA.writeCounterAddress[0] = 39;
+
+    // write A to parcel
+    Parcel parcel;
+    size_t pos = parcel.dataPosition();
+    ringBufferA.writeToParcel(&parcel);
+
+    // read B from parcel
+    parcel.setDataPosition(pos);
+    ringBufferB.readFromParcel(&parcel);
+
+    RingBufferDescriptor descriptorB;
+    EXPECT_EQ(AAUDIO_OK, ringBufferB.resolve(sharedMemories, &descriptorB));
+
+    // A and B should match
+    EXPECT_EQ(descriptorA.dataAddress[0], descriptorB.dataAddress[0]);
+    EXPECT_EQ(descriptorA.dataAddress[1], descriptorB.dataAddress[1]);
+    EXPECT_EQ(descriptorA.readCounterAddress[0], descriptorB.readCounterAddress[0]);
+    EXPECT_EQ(descriptorA.writeCounterAddress[0], descriptorB.writeCounterAddress[0]);
+
+    EXPECT_EQ(ringBufferA.getFramesPerBurst(), ringBufferB.getFramesPerBurst());
+    EXPECT_EQ(ringBufferA.getBytesPerFrame(), ringBufferB.getBytesPerFrame());
+    EXPECT_EQ(ringBufferA.getCapacityInFrames(), ringBufferB.getCapacityInFrames());
+}
diff --git a/media/libaudioclient/Android.bp b/media/libaudioclient/Android.bp
index 03dce0c..ad130e0 100644
--- a/media/libaudioclient/Android.bp
+++ b/media/libaudioclient/Android.bp
@@ -26,6 +26,8 @@
         "libaudioutils",
     ],
     export_shared_lib_headers: ["libbinder"],
+    local_include_dirs: ["include"],
+    export_include_dirs: ["include"],
     // for memory heap analysis
     static_libs: [
         "libc_malloc_debug_backtrace",
diff --git a/media/libaudioclient/AudioEffect.cpp b/media/libaudioclient/AudioEffect.cpp
index 590952f..a5f9ab6 100644
--- a/media/libaudioclient/AudioEffect.cpp
+++ b/media/libaudioclient/AudioEffect.cpp
@@ -128,9 +128,11 @@
     mDescriptor.uuid = *(uuid != NULL ? uuid : EFFECT_UUID_NULL);
 
     mIEffectClient = new EffectClient(this);
+    mClientPid = IPCThreadState::self()->getCallingPid();
 
     iEffect = audioFlinger->createEffect((effect_descriptor_t *)&mDescriptor,
-            mIEffectClient, priority, io, mSessionId, mOpPackageName, &mStatus, &mId, &enabled);
+            mIEffectClient, priority, io, mSessionId, mOpPackageName, mClientPid,
+            &mStatus, &mId, &enabled);
 
     if (iEffect == 0 || (mStatus != NO_ERROR && mStatus != ALREADY_EXISTS)) {
         ALOGE("set(): AudioFlinger could not create effect, status: %d", mStatus);
@@ -156,7 +158,6 @@
     mCblk->buffer = (uint8_t *)mCblk + bufOffset;
 
     IInterface::asBinder(iEffect)->linkToDeath(mIEffectClient);
-    mClientPid = IPCThreadState::self()->getCallingPid();
     ALOGV("set() %p OK effect: %s id: %d status %d enabled %d pid %d", this, mDescriptor.name, mId,
             mStatus, mEnabled, mClientPid);
 
diff --git a/media/libaudioclient/AudioRecord.cpp b/media/libaudioclient/AudioRecord.cpp
index a80c891..6c7cdde 100644
--- a/media/libaudioclient/AudioRecord.cpp
+++ b/media/libaudioclient/AudioRecord.cpp
@@ -66,9 +66,10 @@
 // ---------------------------------------------------------------------------
 
 AudioRecord::AudioRecord(const String16 &opPackageName)
-    : mActive(false), mStatus(NO_INIT), mOpPackageName(opPackageName), mSessionId(AUDIO_SESSION_ALLOCATE),
+    : mActive(false), mStatus(NO_INIT), mOpPackageName(opPackageName),
+      mSessionId(AUDIO_SESSION_ALLOCATE),
       mPreviousPriority(ANDROID_PRIORITY_NORMAL), mPreviousSchedulingGroup(SP_DEFAULT),
-      mSelectedDeviceId(AUDIO_PORT_HANDLE_NONE)
+      mSelectedDeviceId(AUDIO_PORT_HANDLE_NONE), mPortId(AUDIO_PORT_HANDLE_NONE)
 {
 }
 
@@ -85,7 +86,7 @@
         audio_session_t sessionId,
         transfer_type transferType,
         audio_input_flags_t flags,
-        int uid,
+        uid_t uid,
         pid_t pid,
         const audio_attributes_t* pAttributes)
     : mActive(false),
@@ -95,7 +96,8 @@
       mPreviousPriority(ANDROID_PRIORITY_NORMAL),
       mPreviousSchedulingGroup(SP_DEFAULT),
       mProxy(NULL),
-      mSelectedDeviceId(AUDIO_PORT_HANDLE_NONE)
+      mSelectedDeviceId(AUDIO_PORT_HANDLE_NONE),
+      mPortId(AUDIO_PORT_HANDLE_NONE)
 {
     mStatus = set(inputSource, sampleRate, format, channelMask, frameCount, cbf, user,
             notificationFrames, false /*threadCanCallJava*/, sessionId, transferType, flags,
@@ -143,7 +145,7 @@
         audio_session_t sessionId,
         transfer_type transferType,
         audio_input_flags_t flags,
-        int uid,
+        uid_t uid,
         pid_t pid,
         const audio_attributes_t* pAttributes)
 {
@@ -236,7 +238,7 @@
 
     int callingpid = IPCThreadState::self()->getCallingPid();
     int mypid = getpid();
-    if (uid == -1 || (callingpid != mypid)) {
+    if (uid == AUDIO_UID_INVALID || (callingpid != mypid)) {
         mClientUid = IPCThreadState::self()->getCallingUid();
     } else {
         mClientUid = uid;
@@ -529,14 +531,18 @@
     // The sp<> references will be dropped when re-entering scope.
     // The lack of indentation is deliberate, to reduce code churn and ease merges.
     for (;;) {
-
+    audio_config_base_t config  = {
+            .sample_rate = mSampleRate,
+            .channel_mask = mChannelMask,
+            .format = mFormat
+        };
     status = AudioSystem::getInputForAttr(&mAttributes, &input,
                                         mSessionId,
                                         // FIXME compare to AudioTrack
                                         mClientPid,
                                         mClientUid,
-                                        mSampleRate, mFormat, mChannelMask,
-                                        mFlags, mSelectedDeviceId);
+                                        &config,
+                                        mFlags, mSelectedDeviceId, &mPortId);
 
     if (status != NO_ERROR || input == AUDIO_IO_HANDLE_NONE) {
         ALOGE("Could not get audio input for session %d, record source %d, sample rate %u, "
@@ -622,7 +628,8 @@
                                                        &notificationFrames,
                                                        iMem,
                                                        bufferMem,
-                                                       &status);
+                                                       &status,
+                                                       mPortId);
     ALOGE_IF(originalSessionId != AUDIO_SESSION_ALLOCATE && mSessionId != originalSessionId,
             "session ID changed from %d to %d", originalSessionId, mSessionId);
 
diff --git a/media/libaudioclient/AudioSystem.cpp b/media/libaudioclient/AudioSystem.cpp
index bbe6a8f..5cd2789 100644
--- a/media/libaudioclient/AudioSystem.cpp
+++ b/media/libaudioclient/AudioSystem.cpp
@@ -554,7 +554,8 @@
                     "channel mask %#x frameCount %zu frameCountHAL %zu deviceId %d",
                     event == AUDIO_OUTPUT_CONFIG_CHANGED ? "output" : "input",
                     ioDesc->mIoHandle, ioDesc->mSamplingRate, ioDesc->mFormat,
-                    ioDesc->mChannelMask, ioDesc->mFrameCount, ioDesc->mFrameCountHAL, ioDesc->getDeviceId());
+                    ioDesc->mChannelMask, ioDesc->mFrameCount, ioDesc->mFrameCountHAL,
+                    ioDesc->getDeviceId());
 
         } break;
         }
@@ -811,18 +812,16 @@
                                         audio_session_t session,
                                         audio_stream_type_t *stream,
                                         uid_t uid,
-                                        uint32_t samplingRate,
-                                        audio_format_t format,
-                                        audio_channel_mask_t channelMask,
+                                        const audio_config_t *config,
                                         audio_output_flags_t flags,
                                         audio_port_handle_t selectedDeviceId,
-                                        const audio_offload_info_t *offloadInfo)
+                                        audio_port_handle_t *portId)
 {
     const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
     if (aps == 0) return NO_INIT;
     return aps->getOutputForAttr(attr, output, session, stream, uid,
-                                 samplingRate, format, channelMask,
-                                 flags, selectedDeviceId, offloadInfo);
+                                 config,
+                                 flags, selectedDeviceId, portId);
 }
 
 status_t AudioSystem::startOutput(audio_io_handle_t output,
@@ -857,17 +856,16 @@
                                 audio_session_t session,
                                 pid_t pid,
                                 uid_t uid,
-                                uint32_t samplingRate,
-                                audio_format_t format,
-                                audio_channel_mask_t channelMask,
+                                const audio_config_base_t *config,
                                 audio_input_flags_t flags,
-                                audio_port_handle_t selectedDeviceId)
+                                audio_port_handle_t selectedDeviceId,
+                                audio_port_handle_t *portId)
 {
     const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
     if (aps == 0) return NO_INIT;
     return aps->getInputForAttr(
             attr, input, session, pid, uid,
-            samplingRate, format, channelMask, flags, selectedDeviceId);
+            config, flags, selectedDeviceId, portId);
 }
 
 status_t AudioSystem::startInput(audio_io_handle_t input,
@@ -1194,14 +1192,14 @@
 
 status_t AudioSystem::startAudioSource(const struct audio_port_config *source,
                                        const audio_attributes_t *attributes,
-                                       audio_io_handle_t *handle)
+                                       audio_patch_handle_t *handle)
 {
     const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
     if (aps == 0) return PERMISSION_DENIED;
     return aps->startAudioSource(source, attributes, handle);
 }
 
-status_t AudioSystem::stopAudioSource(audio_io_handle_t handle)
+status_t AudioSystem::stopAudioSource(audio_patch_handle_t handle)
 {
     const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
     if (aps == 0) return PERMISSION_DENIED;
diff --git a/media/libaudioclient/AudioTrack.cpp b/media/libaudioclient/AudioTrack.cpp
index c96f16a..d590cb7 100644
--- a/media/libaudioclient/AudioTrack.cpp
+++ b/media/libaudioclient/AudioTrack.cpp
@@ -50,6 +50,8 @@
     return x > y ? x : y;
 }
 
+static const int32_t NANOS_PER_SECOND = 1000000000;
+
 static inline nsecs_t framesToNanoseconds(ssize_t frames, uint32_t sampleRate, float speed)
 {
     return ((double)frames * 1000000000) / ((double)sampleRate * speed);
@@ -60,6 +62,11 @@
     return tv.tv_sec * 1000000ll + tv.tv_nsec / 1000;
 }
 
+static inline nsecs_t convertTimespecToNs(const struct timespec &tv)
+{
+    return tv.tv_sec * (long long)NANOS_PER_SECOND + tv.tv_nsec;
+}
+
 // current monotonic time in microseconds.
 static int64_t getNowUs()
 {
@@ -176,7 +183,8 @@
       mPreviousPriority(ANDROID_PRIORITY_NORMAL),
       mPreviousSchedulingGroup(SP_DEFAULT),
       mPausedPosition(0),
-      mSelectedDeviceId(AUDIO_PORT_HANDLE_NONE)
+      mSelectedDeviceId(AUDIO_PORT_HANDLE_NONE),
+      mPortId(AUDIO_PORT_HANDLE_NONE)
 {
     mAttributes.content_type = AUDIO_CONTENT_TYPE_UNKNOWN;
     mAttributes.usage = AUDIO_USAGE_UNKNOWN;
@@ -197,7 +205,7 @@
         audio_session_t sessionId,
         transfer_type transferType,
         const audio_offload_info_t *offloadInfo,
-        int uid,
+        uid_t uid,
         pid_t pid,
         const audio_attributes_t* pAttributes,
         bool doNotReconnect,
@@ -207,7 +215,8 @@
       mPreviousPriority(ANDROID_PRIORITY_NORMAL),
       mPreviousSchedulingGroup(SP_DEFAULT),
       mPausedPosition(0),
-      mSelectedDeviceId(AUDIO_PORT_HANDLE_NONE)
+      mSelectedDeviceId(AUDIO_PORT_HANDLE_NONE),
+      mPortId(AUDIO_PORT_HANDLE_NONE)
 {
     mStatus = set(streamType, sampleRate, format, channelMask,
             frameCount, flags, cbf, user, notificationFrames,
@@ -228,7 +237,7 @@
         audio_session_t sessionId,
         transfer_type transferType,
         const audio_offload_info_t *offloadInfo,
-        int uid,
+        uid_t uid,
         pid_t pid,
         const audio_attributes_t* pAttributes,
         bool doNotReconnect,
@@ -238,7 +247,8 @@
       mPreviousPriority(ANDROID_PRIORITY_NORMAL),
       mPreviousSchedulingGroup(SP_DEFAULT),
       mPausedPosition(0),
-      mSelectedDeviceId(AUDIO_PORT_HANDLE_NONE)
+      mSelectedDeviceId(AUDIO_PORT_HANDLE_NONE),
+      mPortId(AUDIO_PORT_HANDLE_NONE)
 {
     mStatus = set(streamType, sampleRate, format, channelMask,
             0 /*frameCount*/, flags, cbf, user, notificationFrames,
@@ -289,7 +299,7 @@
         audio_session_t sessionId,
         transfer_type transferType,
         const audio_offload_info_t *offloadInfo,
-        int uid,
+        uid_t uid,
         pid_t pid,
         const audio_attributes_t* pAttributes,
         bool doNotReconnect,
@@ -373,6 +383,10 @@
         if ((mAttributes.flags & AUDIO_FLAG_LOW_LATENCY) != 0) {
             flags = (audio_output_flags_t) (flags | AUDIO_OUTPUT_FLAG_FAST);
         }
+        // check deep buffer after flags have been modified above
+        if (flags == AUDIO_OUTPUT_FLAG_NONE && (mAttributes.flags & AUDIO_FLAG_DEEP_BUFFER) != 0) {
+            flags = AUDIO_OUTPUT_FLAG_DEEP_BUFFER;
+        }
     }
 
     // these below should probably come from the audioFlinger too...
@@ -445,6 +459,7 @@
         mOffloadInfo = &mOffloadInfoCopy;
     } else {
         mOffloadInfo = NULL;
+        memset(&mOffloadInfoCopy, 0, sizeof(audio_offload_info_t));
     }
 
     mVolume[AUDIO_INTERLEAVE_LEFT] = 1.0f;
@@ -483,7 +498,7 @@
     }
     int callingpid = IPCThreadState::self()->getCallingPid();
     int mypid = getpid();
-    if (uid == -1 || (callingpid != mypid)) {
+    if (uid == AUDIO_UID_INVALID || (callingpid != mypid)) {
         mClientUid = IPCThreadState::self()->getCallingUid();
     } else {
         mClientUid = uid;
@@ -536,10 +551,12 @@
     mTimestampStartupGlitchReported = false;
     mRetrogradeMotionReported = false;
     mPreviousLocation = ExtendedTimestamp::LOCATION_INVALID;
+    mStartTs.mPosition = 0;
     mUnderrunCountOffset = 0;
     mFramesWritten = 0;
     mFramesWrittenServerOffset = 0;
-
+    mFramesWrittenAtRestore = -1; // -1 is a unique initializer.
+    mVolumeHandler = new VolumeHandler();
     return NO_ERROR;
 }
 
@@ -562,6 +579,17 @@
         mState = STATE_ACTIVE;
     }
     (void) updateAndGetPosition_l();
+
+    // save start timestamp
+    if (isOffloadedOrDirect_l()) {
+        if (getTimestamp_l(mStartTs) != OK) {
+            mStartTs.mPosition = 0;
+        }
+    } else {
+        if (getTimestamp_l(&mStartEts) != OK) {
+            mStartEts.clear();
+        }
+    }
     if (previousState == STATE_STOPPED || previousState == STATE_FLUSHED) {
         // reset current position as seen by client to 0
         mPosition = 0;
@@ -570,19 +598,17 @@
         mRetrogradeMotionReported = false;
         mPreviousLocation = ExtendedTimestamp::LOCATION_INVALID;
 
-        // read last server side position change via timestamp.
-        ExtendedTimestamp ets;
-        if (mProxy->getTimestamp(&ets) == OK &&
-                ets.mTimeNs[ExtendedTimestamp::LOCATION_SERVER] > 0) {
+        if (!isOffloadedOrDirect_l()
+                && mStartEts.mTimeNs[ExtendedTimestamp::LOCATION_SERVER] > 0) {
             // Server side has consumed something, but is it finished consuming?
             // It is possible since flush and stop are asynchronous that the server
             // is still active at this point.
             ALOGV("start: server read:%lld  cumulative flushed:%lld  client written:%lld",
                     (long long)(mFramesWrittenServerOffset
-                            + ets.mPosition[ExtendedTimestamp::LOCATION_SERVER]),
-                    (long long)ets.mFlushed,
+                            + mStartEts.mPosition[ExtendedTimestamp::LOCATION_SERVER]),
+                    (long long)mStartEts.mFlushed,
                     (long long)mFramesWritten);
-            mFramesWrittenServerOffset = -ets.mPosition[ExtendedTimestamp::LOCATION_SERVER];
+            mFramesWrittenServerOffset = -mStartEts.mPosition[ExtendedTimestamp::LOCATION_SERVER];
         }
         mFramesWritten = 0;
         mProxy->clearTimestamp(); // need new server push for valid timestamp
@@ -599,7 +625,7 @@
         mRefreshRemaining = true;
     }
     mNewPosition = mPosition + mUpdatePeriod;
-    int32_t flags = android_atomic_and(~CBLK_DISABLED, &mCblk->mFlags);
+    int32_t flags = android_atomic_and(~(CBLK_STREAM_END_DONE | CBLK_DISABLED), &mCblk->mFlags);
 
     status_t status = NO_ERROR;
     if (!(flags & CBLK_INVALID)) {
@@ -653,6 +679,8 @@
         mState = STATE_STOPPING;
     } else {
         mState = STATE_STOPPED;
+        ALOGD_IF(mSharedBuffer == nullptr,
+                "stop() called with %u frames delivered", mReleased.value());
         mReleased = 0;
     }
 
@@ -889,7 +917,8 @@
     }
 
     // Check resampler ratios are within bounds
-    if ((uint64_t)effectiveRate > (uint64_t)mSampleRate * (uint64_t)AUDIO_RESAMPLER_DOWN_RATIO_MAX) {
+    if ((uint64_t)effectiveRate > (uint64_t)mSampleRate *
+            (uint64_t)AUDIO_RESAMPLER_DOWN_RATIO_MAX) {
         ALOGV("setPlaybackRate(%f, %f) failed. Resample rate exceeds max accepted value",
                 playbackRate.mSpeed, playbackRate.mPitch);
         return BAD_VALUE;
@@ -1235,15 +1264,21 @@
     // After fast request is denied, we will request again if IAudioTrack is re-created.
 
     status_t status;
+    audio_config_t config = AUDIO_CONFIG_INITIALIZER;
+    config.sample_rate = mSampleRate;
+    config.channel_mask = mChannelMask;
+    config.format = mFormat;
+    config.offload_info = mOffloadInfoCopy;
     status = AudioSystem::getOutputForAttr(attr, &output,
                                            mSessionId, &streamType, mClientUid,
-                                           mSampleRate, mFormat, mChannelMask,
-                                           mFlags, mSelectedDeviceId, mOffloadInfo);
+                                           &config,
+                                           mFlags, mSelectedDeviceId, &mPortId);
 
     if (status != NO_ERROR || output == AUDIO_IO_HANDLE_NONE) {
-        ALOGE("Could not get audio output for session %d, stream type %d, usage %d, sample rate %u, format %#x,"
-              " channel mask %#x, flags %#x",
-              mSessionId, streamType, mAttributes.usage, mSampleRate, mFormat, mChannelMask, mFlags);
+        ALOGE("Could not get audio output for session %d, stream type %d, usage %d, sample rate %u,"
+              " format %#x, channel mask %#x, flags %#x",
+              mSessionId, streamType, mAttributes.usage, mSampleRate, mFormat, mChannelMask,
+              mFlags);
         return BAD_VALUE;
     }
     {
@@ -1396,7 +1431,8 @@
                                                       tid,
                                                       &mSessionId,
                                                       mClientUid,
-                                                      &status);
+                                                      &status,
+                                                      mPortId);
     ALOGE_IF(originalSessionId != AUDIO_SESSION_ALLOCATE && mSessionId != originalSessionId,
             "session ID changed from %d to %d", originalSessionId, mSessionId);
 
@@ -2181,10 +2217,12 @@
     mUnderrunCountOffset = getUnderrunCount_l();
 
     // save the old static buffer position
+    uint32_t staticPosition = 0;
     size_t bufferPosition = 0;
     int loopCount = 0;
     if (mStaticProxy != 0) {
         mStaticProxy->getBufferPositionAndLoopCount(&bufferPosition, &loopCount);
+        staticPosition = mStaticProxy->getPosition().unsignedValue();
     }
 
     mFlags = mOrigFlags;
@@ -2214,10 +2252,27 @@
                 }
             }
         }
+        // restore volume handler
+        mVolumeHandler->forall([this](const sp<VolumeShaper::Configuration> &configuration,
+                const sp<VolumeShaper::Operation> &operation) -> VolumeShaper::Status {
+            sp<VolumeShaper::Operation> operationToEnd = new VolumeShaper::Operation(*operation);
+            // TODO: Ideally we would restore to the exact xOffset position
+            // as returned by getVolumeShaperState(), but we don't have that
+            // information when restoring at the client unless we periodically poll
+            // the server or create shared memory state.
+            //
+            // For now, we simply advance to the end of the VolumeShaper effect.
+            operationToEnd->setXOffset(1.f);
+            return mAudioTrack->applyVolumeShaper(configuration, operationToEnd);
+        });
+
         if (mState == STATE_ACTIVE) {
             result = mAudioTrack->start();
-            mFramesWrittenServerOffset = mFramesWritten; // server resets to zero so we offset
         }
+        // server resets to zero so we offset
+        mFramesWrittenServerOffset =
+                mStaticProxy.get() != nullptr ? staticPosition : mFramesWritten;
+        mFramesWrittenAtRestore = mFramesWrittenServerOffset;
     }
     if (result != NO_ERROR) {
         ALOGW("restoreTrack_l() failed status %d", result);
@@ -2271,6 +2326,28 @@
     return mAudioTrack->setParameters(keyValuePairs);
 }
 
+VolumeShaper::Status AudioTrack::applyVolumeShaper(
+        const sp<VolumeShaper::Configuration>& configuration,
+        const sp<VolumeShaper::Operation>& operation)
+{
+    AutoMutex lock(mLock);
+    mVolumeHandler->setIdIfNecessary(configuration);
+    VolumeShaper::Status status = mAudioTrack->applyVolumeShaper(configuration, operation);
+    if (status >= 0) {
+        // save VolumeShaper for restore
+        mVolumeHandler->applyVolumeShaper(configuration, operation);
+    }
+    return status;
+}
+
+sp<VolumeShaper::State> AudioTrack::getVolumeShaperState(int id)
+{
+    // TODO: To properly restore the AudioTrack
+    // we will need to save the last state in AudioTrackShared.
+    AutoMutex lock(mLock);
+    return mAudioTrack->getVolumeShaperState(id);
+}
+
 status_t AudioTrack::getTimestamp(ExtendedTimestamp *timestamp)
 {
     if (timestamp == nullptr) {
@@ -2315,7 +2392,11 @@
 status_t AudioTrack::getTimestamp(AudioTimestamp& timestamp)
 {
     AutoMutex lock(mLock);
+    return getTimestamp_l(timestamp);
+}
 
+status_t AudioTrack::getTimestamp_l(AudioTimestamp& timestamp)
+{
     bool previousTimestampValid = mPreviousTimestampValid;
     // Set false here to cover all the error return cases.
     mPreviousTimestampValid = false;
@@ -2393,6 +2474,26 @@
                     ALOGV_IF(mPreviousLocation == ExtendedTimestamp::LOCATION_SERVER,
                             "getTimestamp() location moved from server to kernel");
                 }
+
+                // We update the timestamp time even when paused.
+                if (mState == STATE_PAUSED /* not needed: STATE_PAUSED_STOPPING */) {
+                    const int64_t now = systemTime();
+                    const int64_t at = convertTimespecToNs(timestamp.mTime);
+                    const int64_t lag =
+                            (ets.mTimeNs[ExtendedTimestamp::LOCATION_SERVER_LASTKERNELOK] < 0 ||
+                                ets.mTimeNs[ExtendedTimestamp::LOCATION_KERNEL_LASTKERNELOK] < 0)
+                            ? int64_t(mAfLatency * 1000000LL)
+                            : (ets.mPosition[ExtendedTimestamp::LOCATION_SERVER_LASTKERNELOK]
+                             - ets.mPosition[ExtendedTimestamp::LOCATION_KERNEL_LASTKERNELOK])
+                             * NANOS_PER_SECOND / mSampleRate;
+                    const int64_t limit = now - lag; // no earlier than this limit
+                    if (at < limit) {
+                        ALOGV("timestamp pause lag:%lld adjusting from %lld to %lld",
+                                (long long)lag, (long long)at, (long long)limit);
+                        timestamp.mTime.tv_sec = limit / NANOS_PER_SECOND;
+                        timestamp.mTime.tv_nsec = limit % NANOS_PER_SECOND; // compiler opt.
+                    }
+                }
                 mPreviousLocation = location;
             } else {
                 // right after AudioTrack is started, one may not find a timestamp
@@ -2400,7 +2501,17 @@
             }
         }
         if (status == INVALID_OPERATION) {
-            status = WOULD_BLOCK;
+            // INVALID_OPERATION occurs when no timestamp has been issued by the server;
+            // other failures are signaled by a negative time.
+            // If we come out of FLUSHED or STOPPED where the position is known
+            // to be zero we convert this to WOULD_BLOCK (with the implicit meaning of
+            // "zero" for NuPlayer).  We don't convert for track restoration as position
+            // does not reset.
+            ALOGV("timestamp server offset:%lld restore frames:%lld",
+                    (long long)mFramesWrittenServerOffset, (long long)mFramesWrittenAtRestore);
+            if (mFramesWrittenServerOffset != mFramesWrittenAtRestore) {
+                status = WOULD_BLOCK;
+            }
         }
     }
     if (status != NO_ERROR) {
@@ -2412,6 +2523,7 @@
             // use cached paused position in case another offloaded track is running.
             timestamp.mPosition = mPausedPosition;
             clock_gettime(CLOCK_MONOTONIC, &timestamp.mTime);
+            // TODO: adjust for delay
             return NO_ERROR;
         }
 
@@ -2498,21 +2610,18 @@
     // This is sometimes caused by erratic reports of the available space in the ALSA drivers.
     if (status == NO_ERROR) {
         if (previousTimestampValid) {
-#define TIME_TO_NANOS(time) ((int64_t)(time).tv_sec * 1000000000 + (time).tv_nsec)
-            const int64_t previousTimeNanos = TIME_TO_NANOS(mPreviousTimestamp.mTime);
-            const int64_t currentTimeNanos = TIME_TO_NANOS(timestamp.mTime);
-#undef TIME_TO_NANOS
+            const int64_t previousTimeNanos = convertTimespecToNs(mPreviousTimestamp.mTime);
+            const int64_t currentTimeNanos = convertTimespecToNs(timestamp.mTime);
             if (currentTimeNanos < previousTimeNanos) {
-                ALOGW("retrograde timestamp time");
-                // FIXME Consider blocking this from propagating upwards.
+                ALOGW("retrograde timestamp time corrected, %lld < %lld",
+                        (long long)currentTimeNanos, (long long)previousTimeNanos);
+                timestamp.mTime = mPreviousTimestamp.mTime;
             }
 
             // Looking at signed delta will work even when the timestamps
             // are wrapping around.
             int32_t deltaPosition = (Modulo<uint32_t>(timestamp.mPosition)
                     - mPreviousTimestamp.mPosition).signedValue();
-            // position can bobble slightly as an artifact; this hides the bobble
-            static const int32_t MINIMUM_POSITION_DELTA = 8;
             if (deltaPosition < 0) {
                 // Only report once per position instead of spamming the log.
                 if (!mRetrogradeMotionReported) {
@@ -2525,9 +2634,21 @@
             } else {
                 mRetrogradeMotionReported = false;
             }
-            if (deltaPosition < MINIMUM_POSITION_DELTA) {
-                timestamp = mPreviousTimestamp;  // Use last valid timestamp.
+            if (deltaPosition < 0) {
+                timestamp.mPosition = mPreviousTimestamp.mPosition;
+                deltaPosition = 0;
             }
+#if 0
+            // Uncomment this to verify audio timestamp rate.
+            const int64_t deltaTime =
+                    convertTimespecToNs(timestamp.mTime) - previousTimeNanos;
+            if (deltaTime != 0) {
+                const int64_t computedSampleRate =
+                        deltaPosition * (long long)NANOS_PER_SECOND / deltaTime;
+                ALOGD("computedSampleRate:%u  sampleRate:%u",
+                        (unsigned)computedSampleRate, mSampleRate);
+            }
+#endif
         }
         mPreviousTimestamp = timestamp;
         mPreviousTimestampValid = true;
@@ -2697,6 +2818,75 @@
     return NO_ERROR;
 }
 
+bool AudioTrack::hasStarted()
+{
+    AutoMutex lock(mLock);
+    switch (mState) {
+    case STATE_STOPPED:
+        if (isOffloadedOrDirect_l()) {
+            // check if we have started in the past to return true.
+            return mStartUs > 0;
+        }
+        // A normal audio track may still be draining, so
+        // check if stream has ended.  This covers fasttrack position
+        // instability and start/stop without any data written.
+        if (mProxy->getStreamEndDone()) {
+            return true;
+        }
+        // fall through
+    case STATE_ACTIVE:
+    case STATE_STOPPING:
+        break;
+    case STATE_PAUSED:
+    case STATE_PAUSED_STOPPING:
+    case STATE_FLUSHED:
+        return false;  // we're not active
+    default:
+        LOG_ALWAYS_FATAL("Invalid mState in hasStarted(): %d", mState);
+        break;
+    }
+
+    // wait indicates whether we need to wait for a timestamp.
+    // This is conservatively figured - if we encounter an unexpected error
+    // then we will not wait.
+    bool wait = false;
+    if (isOffloadedOrDirect_l()) {
+        AudioTimestamp ts;
+        status_t status = getTimestamp_l(ts);
+        if (status == WOULD_BLOCK) {
+            wait = true;
+        } else if (status == OK) {
+            wait = (ts.mPosition == 0 || ts.mPosition == mStartTs.mPosition);
+        }
+        ALOGV("hasStarted wait:%d  ts:%u  start position:%lld",
+                (int)wait,
+                ts.mPosition,
+                (long long)mStartTs.mPosition);
+    } else {
+        int location = ExtendedTimestamp::LOCATION_SERVER; // for ALOG
+        ExtendedTimestamp ets;
+        status_t status = getTimestamp_l(&ets);
+        if (status == WOULD_BLOCK) {  // no SERVER or KERNEL frame info in ets
+            wait = true;
+        } else if (status == OK) {
+            for (location = ExtendedTimestamp::LOCATION_KERNEL;
+                    location >= ExtendedTimestamp::LOCATION_SERVER; --location) {
+                if (ets.mTimeNs[location] < 0 || mStartEts.mTimeNs[location] < 0) {
+                    continue;
+                }
+                wait = ets.mPosition[location] == 0
+                        || ets.mPosition[location] == mStartEts.mPosition[location];
+                break;
+            }
+        }
+        ALOGV("hasStarted wait:%d  ets:%lld  start position:%lld",
+                (int)wait,
+                (long long)ets.mPosition[location],
+                (long long)mStartEts.mPosition[location]);
+    }
+    return !wait;
+}
+
 // =========================================================================
 
 void AudioTrack::DeathNotifier::binderDied(const wp<IBinder>& who __unused)
diff --git a/media/libaudioclient/IAudioFlinger.cpp b/media/libaudioclient/IAudioFlinger.cpp
index 65fdedb..4e2a0d5 100644
--- a/media/libaudioclient/IAudioFlinger.cpp
+++ b/media/libaudioclient/IAudioFlinger.cpp
@@ -108,7 +108,8 @@
                                 pid_t tid,
                                 audio_session_t *sessionId,
                                 int clientUid,
-                                status_t *status)
+                                status_t *status,
+                                audio_port_handle_t portId)
     {
         Parcel data, reply;
         sp<IAudioTrack> track;
@@ -137,6 +138,7 @@
         }
         data.writeInt32(lSessionId);
         data.writeInt32(clientUid);
+        data.writeInt32(portId);
         status_t lStatus = remote()->transact(CREATE_TRACK, data, &reply);
         if (lStatus != NO_ERROR) {
             ALOGE("createTrack error: %s", strerror(-lStatus));
@@ -188,7 +190,8 @@
                                 size_t *notificationFrames,
                                 sp<IMemory>& cblk,
                                 sp<IMemory>& buffers,
-                                status_t *status)
+                                status_t *status,
+                                audio_port_handle_t portId)
     {
         Parcel data, reply;
         sp<IAudioRecord> record;
@@ -211,6 +214,7 @@
         }
         data.writeInt32(lSessionId);
         data.writeInt64(notificationFrames != NULL ? *notificationFrames : 0);
+        data.writeInt32(portId);
         cblk.clear();
         buffers.clear();
         status_t lStatus = remote()->transact(OPEN_RECORD, data, &reply);
@@ -716,6 +720,7 @@
                                     audio_io_handle_t output,
                                     audio_session_t sessionId,
                                     const String16& opPackageName,
+                                    pid_t pid,
                                     status_t *status,
                                     int *id,
                                     int *enabled)
@@ -737,6 +742,7 @@
         data.writeInt32((int32_t) output);
         data.writeInt32(sessionId);
         data.writeString16(opPackageName);
+        data.writeInt32((int32_t) pid);
 
         status_t lStatus = remote()->transact(CREATE_EFFECT, data, &reply);
         if (lStatus != NO_ERROR) {
@@ -929,7 +935,6 @@
         }
         return reply.readInt64();
     }
-
 };
 
 IMPLEMENT_META_INTERFACE(AudioFlinger, "android.media.IAudioFlinger");
@@ -939,6 +944,29 @@
 status_t BnAudioFlinger::onTransact(
     uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
 {
+    // Whitelist of relevant events to trigger log merging.
+    // Log merging should activate during audio activity of any kind. This are considered the
+    // most relevant events.
+    // TODO should select more wisely the items from the list
+    switch (code) {
+        case CREATE_TRACK:
+        case OPEN_RECORD:
+        case SET_MASTER_VOLUME:
+        case SET_MASTER_MUTE:
+        case SET_STREAM_VOLUME:
+        case SET_STREAM_MUTE:
+        case SET_MIC_MUTE:
+        case SET_PARAMETERS:
+        case OPEN_INPUT:
+        case SET_VOICE_VOLUME:
+        case CREATE_EFFECT:
+        case SYSTEM_READY: {
+            requestLogMerge();
+            break;
+        }
+        default:
+            break;
+    }
     switch (code) {
         case CREATE_TRACK: {
             CHECK_INTERFACE(IAudioFlinger, data, reply);
@@ -958,6 +986,7 @@
             pid_t tid = (pid_t) data.readInt32();
             audio_session_t sessionId = (audio_session_t) data.readInt32();
             int clientUid = data.readInt32();
+            audio_port_handle_t portId = (audio_port_handle_t) data.readInt32();
             status_t status = NO_ERROR;
             sp<IAudioTrack> track;
             if ((haveSharedBuffer && (buffer == 0)) ||
@@ -968,7 +997,7 @@
                 track = createTrack(
                         (audio_stream_type_t) streamType, sampleRate, format,
                         channelMask, &frameCount, &flags, buffer, output, pid, tid,
-                        &sessionId, clientUid, &status);
+                        &sessionId, clientUid, &status, portId);
                 LOG_ALWAYS_FATAL_IF((track != 0) != (status == NO_ERROR));
             }
             reply->writeInt64(frameCount);
@@ -992,13 +1021,14 @@
             int clientUid = data.readInt32();
             audio_session_t sessionId = (audio_session_t) data.readInt32();
             size_t notificationFrames = data.readInt64();
+            audio_port_handle_t portId = (audio_port_handle_t) data.readInt32();
             sp<IMemory> cblk;
             sp<IMemory> buffers;
             status_t status = NO_ERROR;
             sp<IAudioRecord> record = openRecord(input,
                     sampleRate, format, channelMask, opPackageName, &frameCount, &flags,
                     pid, tid, clientUid, &sessionId, &notificationFrames, cblk, buffers,
-                    &status);
+                    &status, portId);
             LOG_ALWAYS_FATAL_IF((record != 0) != (status == NO_ERROR));
             reply->writeInt64(frameCount);
             reply->writeInt32(flags);
@@ -1294,12 +1324,14 @@
             audio_io_handle_t output = (audio_io_handle_t) data.readInt32();
             audio_session_t sessionId = (audio_session_t) data.readInt32();
             const String16 opPackageName = data.readString16();
+            pid_t pid = (pid_t)data.readInt32();
+
             status_t status = NO_ERROR;
             int id = 0;
             int enabled = 0;
 
             sp<IEffect> effect = createEffect(&desc, client, priority, output, sessionId,
-                    opPackageName, &status, &id, &enabled);
+                    opPackageName, pid, &status, &id, &enabled);
             reply->writeInt32(status);
             reply->writeInt32(id);
             reply->writeInt32(enabled);
diff --git a/media/libaudioclient/IAudioPolicyService.cpp b/media/libaudioclient/IAudioPolicyService.cpp
index 0ac5726..f0f413d 100644
--- a/media/libaudioclient/IAudioPolicyService.cpp
+++ b/media/libaudioclient/IAudioPolicyService.cpp
@@ -189,12 +189,10 @@
                                         audio_session_t session,
                                         audio_stream_type_t *stream,
                                         uid_t uid,
-                                        uint32_t samplingRate,
-                                        audio_format_t format,
-                                        audio_channel_mask_t channelMask,
+                                        const audio_config_t *config,
                                         audio_output_flags_t flags,
                                         audio_port_handle_t selectedDeviceId,
-                                        const audio_offload_info_t *offloadInfo)
+                                        audio_port_handle_t *portId)
         {
             Parcel data, reply;
             data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
@@ -212,6 +210,10 @@
                 ALOGE("getOutputForAttr NULL output - shouldn't happen");
                 return BAD_VALUE;
             }
+            if (portId == NULL) {
+                ALOGE("getOutputForAttr NULL portId - shouldn't happen");
+                return BAD_VALUE;
+            }
             if (attr == NULL) {
                 data.writeInt32(0);
             } else {
@@ -226,18 +228,10 @@
                 data.writeInt32(*stream);
             }
             data.writeInt32(uid);
-            data.writeInt32(samplingRate);
-            data.writeInt32(static_cast <uint32_t>(format));
-            data.writeInt32(channelMask);
+            data.write(config, sizeof(audio_config_t));
             data.writeInt32(static_cast <uint32_t>(flags));
             data.writeInt32(selectedDeviceId);
-            // hasOffloadInfo
-            if (offloadInfo == NULL) {
-                data.writeInt32(0);
-            } else {
-                data.writeInt32(1);
-                data.write(offloadInfo, sizeof(audio_offload_info_t));
-            }
+            data.writeInt32(*portId);
             status_t status = remote()->transact(GET_OUTPUT_FOR_ATTR, data, &reply);
             if (status != NO_ERROR) {
                 return status;
@@ -247,9 +241,11 @@
                 return status;
             }
             *output = (audio_io_handle_t)reply.readInt32();
+            audio_stream_type_t lStream = (audio_stream_type_t)reply.readInt32();
             if (stream != NULL) {
-                *stream = (audio_stream_type_t)reply.readInt32();
+                *stream = lStream;
             }
+            *portId = (audio_port_handle_t)reply.readInt32();
             return status;
         }
 
@@ -296,11 +292,10 @@
                                      audio_session_t session,
                                      pid_t pid,
                                      uid_t uid,
-                                     uint32_t samplingRate,
-                                     audio_format_t format,
-                                     audio_channel_mask_t channelMask,
+                                     const audio_config_base_t *config,
                                      audio_input_flags_t flags,
-                                     audio_port_handle_t selectedDeviceId)
+                                     audio_port_handle_t selectedDeviceId,
+                                     audio_port_handle_t *portId)
     {
         Parcel data, reply;
         data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
@@ -312,15 +307,18 @@
             ALOGE("getInputForAttr NULL input - shouldn't happen");
             return BAD_VALUE;
         }
+        if (portId == NULL) {
+            ALOGE("getInputForAttr NULL portId - shouldn't happen");
+            return BAD_VALUE;
+        }
         data.write(attr, sizeof(audio_attributes_t));
         data.writeInt32(session);
         data.writeInt32(pid);
         data.writeInt32(uid);
-        data.writeInt32(samplingRate);
-        data.writeInt32(static_cast <uint32_t>(format));
-        data.writeInt32(channelMask);
+        data.write(config, sizeof(audio_config_base_t));
         data.writeInt32(flags);
         data.writeInt32(selectedDeviceId);
+        data.writeInt32(*portId);
         status_t status = remote()->transact(GET_INPUT_FOR_ATTR, data, &reply);
         if (status != NO_ERROR) {
             return status;
@@ -330,6 +328,7 @@
             return status;
         }
         *input = (audio_io_handle_t)reply.readInt32();
+        *portId = (audio_port_handle_t)reply.readInt32();
         return NO_ERROR;
     }
 
@@ -752,7 +751,7 @@
 
     virtual status_t startAudioSource(const struct audio_port_config *source,
                                       const audio_attributes_t *attributes,
-                                      audio_io_handle_t *handle)
+                                      audio_patch_handle_t *handle)
     {
         Parcel data, reply;
         data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
@@ -769,11 +768,11 @@
         if (status != NO_ERROR) {
             return status;
         }
-        *handle = (audio_io_handle_t)reply.readInt32();
+        *handle = (audio_patch_handle_t)reply.readInt32();
         return status;
     }
 
-    virtual status_t stopAudioSource(audio_io_handle_t handle)
+    virtual status_t stopAudioSource(audio_patch_handle_t handle)
     {
         Parcel data, reply;
         data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
@@ -942,25 +941,22 @@
                 stream = (audio_stream_type_t)data.readInt32();
             }
             uid_t uid = (uid_t)data.readInt32();
-            uint32_t samplingRate = data.readInt32();
-            audio_format_t format = (audio_format_t) data.readInt32();
-            audio_channel_mask_t channelMask = data.readInt32();
+            audio_config_t config;
+            memset(&config, 0, sizeof(audio_config_t));
+            data.read(&config, sizeof(audio_config_t));
             audio_output_flags_t flags =
                     static_cast <audio_output_flags_t>(data.readInt32());
             audio_port_handle_t selectedDeviceId = data.readInt32();
-            bool hasOffloadInfo = data.readInt32() != 0;
-            audio_offload_info_t offloadInfo;
-            if (hasOffloadInfo) {
-                data.read(&offloadInfo, sizeof(audio_offload_info_t));
-            }
+            audio_port_handle_t portId = (audio_port_handle_t)data.readInt32();
             audio_io_handle_t output = 0;
             status_t status = getOutputForAttr(hasAttributes ? &attr : NULL,
                     &output, session, &stream, uid,
-                    samplingRate, format, channelMask,
-                    flags, selectedDeviceId, hasOffloadInfo ? &offloadInfo : NULL);
+                    &config,
+                    flags, selectedDeviceId, &portId);
             reply->writeInt32(status);
             reply->writeInt32(output);
             reply->writeInt32(stream);
+            reply->writeInt32(portId);
             return NO_ERROR;
         } break;
 
@@ -1004,18 +1000,20 @@
             audio_session_t session = (audio_session_t)data.readInt32();
             pid_t pid = (pid_t)data.readInt32();
             uid_t uid = (uid_t)data.readInt32();
-            uint32_t samplingRate = data.readInt32();
-            audio_format_t format = (audio_format_t) data.readInt32();
-            audio_channel_mask_t channelMask = data.readInt32();
+            audio_config_base_t config;
+            memset(&config, 0, sizeof(audio_config_base_t));
+            data.read(&config, sizeof(audio_config_base_t));
             audio_input_flags_t flags = (audio_input_flags_t) data.readInt32();
             audio_port_handle_t selectedDeviceId = (audio_port_handle_t) data.readInt32();
+            audio_port_handle_t portId = (audio_port_handle_t)data.readInt32();
             audio_io_handle_t input = AUDIO_IO_HANDLE_NONE;
             status_t status = getInputForAttr(&attr, &input, session, pid, uid,
-                                              samplingRate, format, channelMask,
-                                              flags, selectedDeviceId);
+                                              &config,
+                                              flags, selectedDeviceId, &portId);
             reply->writeInt32(status);
             if (status == NO_ERROR) {
                 reply->writeInt32(input);
+                reply->writeInt32(portId);
             }
             return NO_ERROR;
         } break;
@@ -1373,7 +1371,7 @@
             data.read(&source, sizeof(struct audio_port_config));
             audio_attributes_t attributes;
             data.read(&attributes, sizeof(audio_attributes_t));
-            audio_io_handle_t handle = {};
+            audio_patch_handle_t handle = AUDIO_PATCH_HANDLE_NONE;
             status_t status = startAudioSource(&source, &attributes, &handle);
             reply->writeInt32(status);
             reply->writeInt32(handle);
@@ -1382,7 +1380,7 @@
 
         case STOP_AUDIO_SOURCE: {
             CHECK_INTERFACE(IAudioPolicyService, data, reply);
-            audio_io_handle_t handle = (audio_io_handle_t)data.readInt32();
+            audio_patch_handle_t handle = (audio_patch_handle_t) data.readInt32();
             status_t status = stopAudioSource(handle);
             reply->writeInt32(status);
             return NO_ERROR;
diff --git a/media/libaudioclient/IAudioTrack.cpp b/media/libaudioclient/IAudioTrack.cpp
index 89e0fcc..79e864d 100644
--- a/media/libaudioclient/IAudioTrack.cpp
+++ b/media/libaudioclient/IAudioTrack.cpp
@@ -39,6 +39,8 @@
     SET_PARAMETERS,
     GET_TIMESTAMP,
     SIGNAL,
+    APPLY_VOLUME_SHAPER,
+    GET_VOLUME_SHAPER_STATE,
 };
 
 class BpAudioTrack : public BpInterface<IAudioTrack>
@@ -143,6 +145,52 @@
         data.writeInterfaceToken(IAudioTrack::getInterfaceDescriptor());
         remote()->transact(SIGNAL, data, &reply);
     }
+
+    virtual VolumeShaper::Status applyVolumeShaper(
+            const sp<VolumeShaper::Configuration>& configuration,
+            const sp<VolumeShaper::Operation>& operation) {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioTrack::getInterfaceDescriptor());
+
+        status_t status = configuration.get() == nullptr
+                ? data.writeInt32(0)
+                :  data.writeInt32(1)
+                    ?: configuration->writeToParcel(&data);
+        if (status != NO_ERROR) {
+            return VolumeShaper::Status(status);
+        }
+
+        status = operation.get() == nullptr
+                ? status = data.writeInt32(0)
+                : data.writeInt32(1)
+                    ?: operation->writeToParcel(&data);
+        if (status != NO_ERROR) {
+            return VolumeShaper::Status(status);
+        }
+
+        int32_t remoteVolumeShaperStatus;
+        status = remote()->transact(APPLY_VOLUME_SHAPER, data, &reply)
+                 ?: reply.readInt32(&remoteVolumeShaperStatus);
+
+        return VolumeShaper::Status(status ?: remoteVolumeShaperStatus);
+    }
+
+    virtual sp<VolumeShaper::State> getVolumeShaperState(int id) {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioTrack::getInterfaceDescriptor());
+
+        data.writeInt32(id);
+        status_t status = remote()->transact(GET_VOLUME_SHAPER_STATE, data, &reply);
+        if (status != NO_ERROR) {
+            return nullptr;
+        }
+        sp<VolumeShaper::State> state = new VolumeShaper::State;
+        status = state->readFromParcel(reply);
+        if (status != NO_ERROR) {
+            return nullptr;
+        }
+        return state;
+    }
 };
 
 IMPLEMENT_META_INTERFACE(AudioTrack, "android.media.IAudioTrack");
@@ -206,6 +254,40 @@
             signal();
             return NO_ERROR;
         } break;
+        case APPLY_VOLUME_SHAPER: {
+            CHECK_INTERFACE(IAudioTrack, data, reply);
+            sp<VolumeShaper::Configuration> configuration;
+            sp<VolumeShaper::Operation> operation;
+
+            int32_t present;
+            status_t status = data.readInt32(&present);
+            if (status == NO_ERROR && present != 0) {
+                configuration = new VolumeShaper::Configuration();
+                status = configuration->readFromParcel(data);
+            }
+            status = status ?: data.readInt32(&present);
+            if (status == NO_ERROR && present != 0) {
+                operation = new VolumeShaper::Operation();
+                status = operation->readFromParcel(data);
+            }
+            if (status == NO_ERROR) {
+                status = (status_t)applyVolumeShaper(configuration, operation);
+            }
+            reply->writeInt32(status);
+            return NO_ERROR;
+        } break;
+        case GET_VOLUME_SHAPER_STATE: {
+            CHECK_INTERFACE(IAudioTrack, data, reply);
+            int id;
+            status_t status = data.readInt32(&id);
+            if (status == NO_ERROR) {
+                sp<VolumeShaper::State> state = getVolumeShaperState(id);
+                if (state.get() != nullptr) {
+                     status = state->writeToParcel(reply);
+                }
+            }
+            return NO_ERROR;
+        } break;
         default:
             return BBinder::onTransact(code, data, reply, flags);
     }
diff --git a/include/media/AudioBufferProvider.h b/media/libaudioclient/include/AudioBufferProvider.h
similarity index 100%
rename from include/media/AudioBufferProvider.h
rename to media/libaudioclient/include/AudioBufferProvider.h
diff --git a/media/libaudioclient/include/AudioEffect.h b/media/libaudioclient/include/AudioEffect.h
new file mode 100644
index 0000000..bfc068b
--- /dev/null
+++ b/media/libaudioclient/include/AudioEffect.h
@@ -0,0 +1,488 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_AUDIOEFFECT_H
+#define ANDROID_AUDIOEFFECT_H
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <media/IAudioFlinger.h>
+#include <media/IAudioPolicyService.h>
+#include <media/IEffect.h>
+#include <media/IEffectClient.h>
+#include <media/AudioSystem.h>
+#include <system/audio_effect.h>
+
+#include <utils/RefBase.h>
+#include <utils/Errors.h>
+#include <binder/IInterface.h>
+
+
+namespace android {
+
+// ----------------------------------------------------------------------------
+
+struct effect_param_cblk_t;
+
+// ----------------------------------------------------------------------------
+
+class AudioEffect : public RefBase
+{
+public:
+
+    /*
+     *  Static methods for effects enumeration.
+     */
+
+    /*
+     * Returns the number of effects available. This method together
+     * with queryEffect() is used to enumerate all effects:
+     * The enumeration sequence is:
+     *      queryNumberEffects(&num_effects);
+     *      for (i = 0; i < num_effects; i++)
+     *          queryEffect(i,...);
+     *
+     * Parameters:
+     *      numEffects:    address where the number of effects should be returned.
+     *
+     * Returned status (from utils/Errors.h) can be:
+     *      NO_ERROR   successful operation.
+     *      PERMISSION_DENIED could not get AudioFlinger interface
+     *      NO_INIT    effect library failed to initialize
+     *      BAD_VALUE  invalid numEffects pointer
+     *
+     * Returned value
+     *   *numEffects:     updated with number of effects available
+     */
+    static status_t queryNumberEffects(uint32_t *numEffects);
+
+    /*
+     * Returns an effect descriptor during effect
+     * enumeration.
+     *
+     * Parameters:
+     *      index:      index of the queried effect.
+     *      descriptor: address where the effect descriptor should be returned.
+     *
+     * Returned status (from utils/Errors.h) can be:
+     *      NO_ERROR        successful operation.
+     *      PERMISSION_DENIED could not get AudioFlinger interface
+     *      NO_INIT         effect library failed to initialize
+     *      BAD_VALUE       invalid descriptor pointer or index
+     *      INVALID_OPERATION  effect list has changed since last execution of queryNumberEffects()
+     *
+     * Returned value
+     *   *descriptor:     updated with effect descriptor
+     */
+    static status_t queryEffect(uint32_t index, effect_descriptor_t *descriptor);
+
+
+    /*
+     * Returns the descriptor for the specified effect uuid.
+     *
+     * Parameters:
+     *      uuid:       pointer to effect uuid.
+     *      descriptor: address where the effect descriptor should be returned.
+     *
+     * Returned status (from utils/Errors.h) can be:
+     *      NO_ERROR        successful operation.
+     *      PERMISSION_DENIED could not get AudioFlinger interface
+     *      NO_INIT         effect library failed to initialize
+     *      BAD_VALUE       invalid uuid or descriptor pointers
+     *      NAME_NOT_FOUND  no effect with this uuid found
+     *
+     * Returned value
+     *   *descriptor updated with effect descriptor
+     */
+    static status_t getEffectDescriptor(const effect_uuid_t *uuid,
+                                        effect_descriptor_t *descriptor) /*const*/;
+
+
+    /*
+     * Returns a list of descriptors corresponding to the pre processings enabled by default
+     * on an AudioRecord with the supplied audio session ID.
+     *
+     * Parameters:
+     *      audioSession:  audio session ID.
+     *      descriptors: address where the effect descriptors should be returned.
+     *      count: as input, the maximum number of descriptor than should be returned
+     *             as output, the number of descriptor returned if status is NO_ERROR or the actual
+     *             number of enabled pre processings if status is NO_MEMORY
+     *
+     * Returned status (from utils/Errors.h) can be:
+     *      NO_ERROR        successful operation.
+     *      NO_MEMORY       the number of descriptor to return is more than the maximum number
+     *                      indicated by count.
+     *      PERMISSION_DENIED could not get AudioFlinger interface
+     *      NO_INIT         effect library failed to initialize
+     *      BAD_VALUE       invalid audio session or descriptor pointers
+     *
+     * Returned value
+     *   *descriptor updated with descriptors of pre processings enabled by default
+     *   *count      number of descriptors returned if returned status is NO_ERROR.
+     *               total number of pre processing enabled by default if returned status is
+     *               NO_MEMORY. This happens if the count passed as input is less than the number
+     *               of descriptors to return.
+     *               *count is limited to kMaxPreProcessing on return.
+     */
+    static status_t queryDefaultPreProcessing(audio_session_t audioSession,
+                                              effect_descriptor_t *descriptors,
+                                              uint32_t *count);
+
+    /*
+     * Events used by callback function (effect_callback_t).
+     */
+    enum event_type {
+        EVENT_CONTROL_STATUS_CHANGED = 0,
+        EVENT_ENABLE_STATUS_CHANGED = 1,
+        EVENT_PARAMETER_CHANGED = 2,
+        EVENT_ERROR = 3
+    };
+
+    /* Callback function notifying client application of a change in effect engine state or
+     * configuration.
+     * An effect engine can be shared by several applications but only one has the control
+     * of the engine activity and configuration at a time.
+     * The EVENT_CONTROL_STATUS_CHANGED event is received when an application loses or
+     * retrieves the control of the effect engine. Loss of control happens
+     * if another application requests the use of the engine by creating an AudioEffect for
+     * the same effect type but with a higher priority. Control is returned when the
+     * application having the control deletes its AudioEffect object.
+     * The EVENT_ENABLE_STATUS_CHANGED event is received by all applications not having the
+     * control of the effect engine when the effect is enabled or disabled.
+     * The EVENT_PARAMETER_CHANGED event is received by all applications not having the
+     * control of the effect engine when an effect parameter is changed.
+     * The EVENT_ERROR event is received when the media server process dies.
+     *
+     * Parameters:
+     *
+     * event:   type of event notified (see enum AudioEffect::event_type).
+     * user:    Pointer to context for use by the callback receiver.
+     * info:    Pointer to optional parameter according to event type:
+     *  - EVENT_CONTROL_STATUS_CHANGED:  boolean indicating if control is granted (true)
+     *  or stolen (false).
+     *  - EVENT_ENABLE_STATUS_CHANGED: boolean indicating if effect is now enabled (true)
+     *  or disabled (false).
+     *  - EVENT_PARAMETER_CHANGED: pointer to a effect_param_t structure.
+     *  - EVENT_ERROR:  status_t indicating the error (DEAD_OBJECT when media server dies).
+     */
+
+    typedef void (*effect_callback_t)(int32_t event, void* user, void *info);
+
+
+    /* Constructor.
+     * AudioEffect is the base class for creating and controlling an effect engine from
+     * the application process. Creating an AudioEffect object will create the effect engine
+     * in the AudioFlinger if no engine of the specified type exists. If one exists, this engine
+     * will be used. The application creating the AudioEffect object (or a derived class like
+     * Reverb for instance) will either receive control of the effect engine or not, depending
+     * on the priority parameter. If priority is higher than the priority used by the current
+     * effect engine owner, the control will be transfered to the new application. Otherwise
+     * control will remain to the previous application. In this case, the new application will be
+     * notified of changes in effect engine state or control ownership by the effect callback.
+     * After creating the AudioEffect, the application must call the initCheck() method and
+     * check the creation status before trying to control the effect engine (see initCheck()).
+     * If the effect is to be applied to an AudioTrack or MediaPlayer only the application
+     * must specify the audio session ID corresponding to this player.
+     */
+
+    /* Simple Constructor.
+     *
+     * Parameters:
+     *
+     * opPackageName:      The package name used for app op checks.
+     */
+    AudioEffect(const String16& opPackageName);
+
+
+    /* Constructor.
+     *
+     * Parameters:
+     *
+     * type:  type of effect created: can be null if uuid is specified. This corresponds to
+     *        the OpenSL ES interface implemented by this effect.
+     * opPackageName:  The package name used for app op checks.
+     * uuid:  Uuid of effect created: can be null if type is specified. This uuid corresponds to
+     *        a particular implementation of an effect type.
+     * priority:    requested priority for effect control: the priority level corresponds to the
+     *      value of priority parameter: negative values indicate lower priorities, positive values
+     *      higher priorities, 0 being the normal priority.
+     * cbf:         optional callback function (see effect_callback_t)
+     * user:        pointer to context for use by the callback receiver.
+     * sessionID:   audio session this effect is associated to.
+     *      If equal to AUDIO_SESSION_OUTPUT_MIX, the effect will be global to
+     *      the output mix.  Otherwise, the effect will be applied to all players
+     *      (AudioTrack or MediaPLayer) within the same audio session.
+     * io:  HAL audio output or input stream to which this effect must be attached. Leave at 0 for
+     *      automatic output selection by AudioFlinger.
+     */
+
+    AudioEffect(const effect_uuid_t *type,
+                const String16& opPackageName,
+                const effect_uuid_t *uuid = NULL,
+                  int32_t priority = 0,
+                  effect_callback_t cbf = NULL,
+                  void* user = NULL,
+                  audio_session_t sessionId = AUDIO_SESSION_OUTPUT_MIX,
+                  audio_io_handle_t io = AUDIO_IO_HANDLE_NONE
+                  );
+
+    /* Constructor.
+     *      Same as above but with type and uuid specified by character strings
+     */
+    AudioEffect(const char *typeStr,
+                    const String16& opPackageName,
+                    const char *uuidStr = NULL,
+                    int32_t priority = 0,
+                    effect_callback_t cbf = NULL,
+                    void* user = NULL,
+                    audio_session_t sessionId = AUDIO_SESSION_OUTPUT_MIX,
+                    audio_io_handle_t io = AUDIO_IO_HANDLE_NONE
+                    );
+
+    /* Terminates the AudioEffect and unregisters it from AudioFlinger.
+     * The effect engine is also destroyed if this AudioEffect was the last controlling
+     * the engine.
+     */
+                        ~AudioEffect();
+
+    /* Initialize an uninitialized AudioEffect.
+    * Returned status (from utils/Errors.h) can be:
+    *  - NO_ERROR or ALREADY_EXISTS: successful initialization
+    *  - INVALID_OPERATION: AudioEffect is already initialized
+    *  - BAD_VALUE: invalid parameter
+    *  - NO_INIT: audio flinger or audio hardware not initialized
+    * */
+            status_t    set(const effect_uuid_t *type,
+                            const effect_uuid_t *uuid = NULL,
+                            int32_t priority = 0,
+                            effect_callback_t cbf = NULL,
+                            void* user = NULL,
+                            audio_session_t sessionId = AUDIO_SESSION_OUTPUT_MIX,
+                            audio_io_handle_t io = AUDIO_IO_HANDLE_NONE
+                            );
+
+    /* Result of constructing the AudioEffect. This must be checked
+     * before using any AudioEffect API.
+     * initCheck() can return:
+     *  - NO_ERROR:    the effect engine is successfully created and the application has control.
+     *  - ALREADY_EXISTS: the effect engine is successfully created but the application does not
+     *              have control.
+     *  - NO_INIT:     the effect creation failed.
+     *
+     */
+            status_t    initCheck() const;
+
+
+    /* Returns the unique effect Id for the controlled effect engine. This ID is unique
+     * system wide and is used for instance in the case of auxiliary effects to attach
+     * the effect to an AudioTrack or MediaPlayer.
+     *
+     */
+            int32_t     id() const { return mId; }
+
+    /* Returns a descriptor for the effect (see effect_descriptor_t in audio_effect.h).
+     */
+            effect_descriptor_t descriptor() const;
+
+    /* Returns effect control priority of this AudioEffect object.
+     */
+            int32_t     priority() const { return mPriority; }
+
+
+    /* Enables or disables the effect engine.
+     *
+     * Parameters:
+     *  enabled: requested enable state.
+     *
+     * Returned status (from utils/Errors.h) can be:
+     *  - NO_ERROR: successful operation
+     *  - INVALID_OPERATION: the application does not have control of the effect engine or the
+     *  effect is already in the requested state.
+     */
+    virtual status_t    setEnabled(bool enabled);
+            bool        getEnabled() const;
+
+    /* Sets a parameter value.
+     *
+     * Parameters:
+     *      param:  pointer to effect_param_t structure containing the parameter
+     *          and its value (See audio_effect.h).
+     * Returned status (from utils/Errors.h) can be:
+     *  - NO_ERROR: successful operation.
+     *  - INVALID_OPERATION: the application does not have control of the effect engine.
+     *  - BAD_VALUE: invalid parameter identifier or value.
+     *  - DEAD_OBJECT: the effect engine has been deleted.
+     */
+     virtual status_t   setParameter(effect_param_t *param);
+
+    /* Prepare a new parameter value that will be set by next call to
+     * setParameterCommit(). This method can be used to set multiple parameters
+     * in a synchronous manner or to avoid multiple binder calls for each
+     * parameter.
+     *
+     * Parameters:
+     *      param:  pointer to effect_param_t structure containing the parameter
+     *          and its value (See audio_effect.h).
+     *
+     * Returned status (from utils/Errors.h) can be:
+     *  - NO_ERROR: successful operation.
+     *  - INVALID_OPERATION: the application does not have control of the effect engine.
+     *  - NO_MEMORY: no more space available in shared memory used for deferred parameter
+     *  setting.
+     */
+     virtual status_t   setParameterDeferred(effect_param_t *param);
+
+     /* Commit all parameter values previously prepared by setParameterDeferred().
+      *
+      * Parameters:
+      *     none
+      *
+      * Returned status (from utils/Errors.h) can be:
+      *  - NO_ERROR: successful operation.
+      *  - INVALID_OPERATION: No new parameter values ready for commit.
+      *  - BAD_VALUE: invalid parameter identifier or value: there is no indication
+      *     as to which of the parameters caused this error.
+      *  - DEAD_OBJECT: the effect engine has been deleted.
+      */
+     virtual status_t   setParameterCommit();
+
+    /* Gets a parameter value.
+     *
+     * Parameters:
+     *      param:  pointer to effect_param_t structure containing the parameter
+     *          and the returned value (See audio_effect.h).
+     *
+     * Returned status (from utils/Errors.h) can be:
+     *  - NO_ERROR: successful operation.
+     *  - INVALID_OPERATION: the AudioEffect was not successfully initialized.
+     *  - BAD_VALUE: invalid parameter identifier.
+     *  - DEAD_OBJECT: the effect engine has been deleted.
+     */
+     virtual status_t   getParameter(effect_param_t *param);
+
+     /* Sends a command and receives a response to/from effect engine.
+      *     See audio_effect.h for details on effect command() function, valid command codes
+      *     and formats.
+      */
+     virtual status_t command(uint32_t cmdCode,
+                              uint32_t cmdSize,
+                              void *cmdData,
+                              uint32_t *replySize,
+                              void *replyData);
+
+
+     /*
+      * Utility functions.
+      */
+
+     /* Converts the string passed as first argument to the effect_uuid_t
+      * pointed to by second argument
+      */
+     static status_t stringToGuid(const char *str, effect_uuid_t *guid);
+     /* Converts the effect_uuid_t pointed to by first argument to the
+      * string passed as second argument
+      */
+     static status_t guidToString(const effect_uuid_t *guid, char *str, size_t maxLen);
+
+     // kMaxPreProcessing is a reasonable value for the maximum number of preprocessing effects
+     // that can be applied simultaneously.
+     static const uint32_t kMaxPreProcessing = 10;
+
+protected:
+     bool                    mEnabled;           // enable state
+     audio_session_t         mSessionId;         // audio session ID
+     int32_t                 mPriority;          // priority for effect control
+     status_t                mStatus;            // effect status
+     effect_callback_t       mCbf;               // callback function for status, control and
+                                                 // parameter changes notifications
+     void*                   mUserData;          // client context for callback function
+     effect_descriptor_t     mDescriptor;        // effect descriptor
+     int32_t                 mId;                // system wide unique effect engine instance ID
+     Mutex                   mLock;              // Mutex for mEnabled access
+
+     String16                mOpPackageName;     // The package name used for app op checks.
+
+     // IEffectClient
+     virtual void controlStatusChanged(bool controlGranted);
+     virtual void enableStatusChanged(bool enabled);
+     virtual void commandExecuted(uint32_t cmdCode,
+             uint32_t cmdSize,
+             void *pCmdData,
+             uint32_t replySize,
+             void *pReplyData);
+
+private:
+
+     // Implements the IEffectClient interface
+    class EffectClient :
+        public android::BnEffectClient, public android::IBinder::DeathRecipient
+    {
+    public:
+
+        EffectClient(AudioEffect *effect) : mEffect(effect){}
+
+        // IEffectClient
+        virtual void controlStatusChanged(bool controlGranted) {
+            sp<AudioEffect> effect = mEffect.promote();
+            if (effect != 0) {
+                effect->controlStatusChanged(controlGranted);
+            }
+        }
+        virtual void enableStatusChanged(bool enabled) {
+            sp<AudioEffect> effect = mEffect.promote();
+            if (effect != 0) {
+                effect->enableStatusChanged(enabled);
+            }
+        }
+        virtual void commandExecuted(uint32_t cmdCode,
+                                     uint32_t cmdSize,
+                                     void *pCmdData,
+                                     uint32_t replySize,
+                                     void *pReplyData) {
+            sp<AudioEffect> effect = mEffect.promote();
+            if (effect != 0) {
+                effect->commandExecuted(
+                    cmdCode, cmdSize, pCmdData, replySize, pReplyData);
+            }
+        }
+
+        // IBinder::DeathRecipient
+        virtual void binderDied(const wp<IBinder>& /*who*/) {
+            sp<AudioEffect> effect = mEffect.promote();
+            if (effect != 0) {
+                effect->binderDied();
+            }
+        }
+
+    private:
+        wp<AudioEffect> mEffect;
+    };
+
+    void binderDied();
+
+    sp<IEffect>             mIEffect;           // IEffect binder interface
+    sp<EffectClient>        mIEffectClient;     // IEffectClient implementation
+    sp<IMemory>             mCblkMemory;        // shared memory for deferred parameter setting
+    effect_param_cblk_t*    mCblk;              // control block for deferred parameter setting
+    pid_t                   mClientPid;
+};
+
+
+}; // namespace android
+
+#endif // ANDROID_AUDIOEFFECT_H
diff --git a/include/media/AudioIoDescriptor.h b/media/libaudioclient/include/AudioIoDescriptor.h
similarity index 100%
rename from include/media/AudioIoDescriptor.h
rename to media/libaudioclient/include/AudioIoDescriptor.h
diff --git a/media/libaudioclient/include/AudioMixer.h b/media/libaudioclient/include/AudioMixer.h
new file mode 100644
index 0000000..87ada76
--- /dev/null
+++ b/media/libaudioclient/include/AudioMixer.h
@@ -0,0 +1,389 @@
+/*
+**
+** Copyright 2007, The Android Open Source Project
+**
+** Licensed under the Apache License, Version 2.0 (the "License");
+** you may not use this file except in compliance with the License.
+** You may obtain a copy of the License at
+**
+**     http://www.apache.org/licenses/LICENSE-2.0
+**
+** Unless required by applicable law or agreed to in writing, software
+** distributed under the License is distributed on an "AS IS" BASIS,
+** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+** See the License for the specific language governing permissions and
+** limitations under the License.
+*/
+
+#ifndef ANDROID_AUDIO_MIXER_H
+#define ANDROID_AUDIO_MIXER_H
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <media/AudioBufferProvider.h>
+#include <media/AudioResampler.h>
+#include <media/AudioResamplerPublic.h>
+#include <media/BufferProviders.h>
+#include <media/nbaio/NBLog.h>
+#include <system/audio.h>
+#include <utils/Compat.h>
+#include <utils/threads.h>
+
+// FIXME This is actually unity gain, which might not be max in future, expressed in U.12
+#define MAX_GAIN_INT AudioMixer::UNITY_GAIN_INT
+
+namespace android {
+
+// ----------------------------------------------------------------------------
+
+class AudioMixer
+{
+public:
+                            AudioMixer(size_t frameCount, uint32_t sampleRate,
+                                       uint32_t maxNumTracks = MAX_NUM_TRACKS);
+
+    /*virtual*/             ~AudioMixer();  // non-virtual saves a v-table, restore if sub-classed
+
+
+    // This mixer has a hard-coded upper limit of 32 active track inputs.
+    // Adding support for > 32 tracks would require more than simply changing this value.
+    static const uint32_t MAX_NUM_TRACKS = 32;
+    // maximum number of channels supported by the mixer
+
+    // This mixer has a hard-coded upper limit of 8 channels for output.
+    static const uint32_t MAX_NUM_CHANNELS = 8;
+    static const uint32_t MAX_NUM_VOLUMES = 2; // stereo volume only
+    // maximum number of channels supported for the content
+    static const uint32_t MAX_NUM_CHANNELS_TO_DOWNMIX = AUDIO_CHANNEL_COUNT_MAX;
+
+    static const uint16_t UNITY_GAIN_INT = 0x1000;
+    static const CONSTEXPR float UNITY_GAIN_FLOAT = 1.0f;
+
+    enum { // names
+
+        // track names (MAX_NUM_TRACKS units)
+        TRACK0          = 0x1000,
+
+        // 0x2000 is unused
+
+        // setParameter targets
+        TRACK           = 0x3000,
+        RESAMPLE        = 0x3001,
+        RAMP_VOLUME     = 0x3002, // ramp to new volume
+        VOLUME          = 0x3003, // don't ramp
+        TIMESTRETCH     = 0x3004,
+
+        // set Parameter names
+        // for target TRACK
+        CHANNEL_MASK    = 0x4000,
+        FORMAT          = 0x4001,
+        MAIN_BUFFER     = 0x4002,
+        AUX_BUFFER      = 0x4003,
+        DOWNMIX_TYPE    = 0X4004,
+        MIXER_FORMAT    = 0x4005, // AUDIO_FORMAT_PCM_(FLOAT|16_BIT)
+        MIXER_CHANNEL_MASK = 0x4006, // Channel mask for mixer output
+        // for target RESAMPLE
+        SAMPLE_RATE     = 0x4100, // Configure sample rate conversion on this track name;
+                                  // parameter 'value' is the new sample rate in Hz.
+                                  // Only creates a sample rate converter the first time that
+                                  // the track sample rate is different from the mix sample rate.
+                                  // If the new sample rate is the same as the mix sample rate,
+                                  // and a sample rate converter already exists,
+                                  // then the sample rate converter remains present but is a no-op.
+        RESET           = 0x4101, // Reset sample rate converter without changing sample rate.
+                                  // This clears out the resampler's input buffer.
+        REMOVE          = 0x4102, // Remove the sample rate converter on this track name;
+                                  // the track is restored to the mix sample rate.
+        // for target RAMP_VOLUME and VOLUME (8 channels max)
+        // FIXME use float for these 3 to improve the dynamic range
+        VOLUME0         = 0x4200,
+        VOLUME1         = 0x4201,
+        AUXLEVEL        = 0x4210,
+        // for target TIMESTRETCH
+        PLAYBACK_RATE   = 0x4300, // Configure timestretch on this track name;
+                                  // parameter 'value' is a pointer to the new playback rate.
+    };
+
+
+    // For all APIs with "name": TRACK0 <= name < TRACK0 + MAX_NUM_TRACKS
+
+    // Allocate a track name.  Returns new track name if successful, -1 on failure.
+    // The failure could be because of an invalid channelMask or format, or that
+    // the track capacity of the mixer is exceeded.
+    int         getTrackName(audio_channel_mask_t channelMask,
+                             audio_format_t format, int sessionId);
+
+    // Free an allocated track by name
+    void        deleteTrackName(int name);
+
+    // Enable or disable an allocated track by name
+    void        enable(int name);
+    void        disable(int name);
+
+    void        setParameter(int name, int target, int param, void *value);
+
+    void        setBufferProvider(int name, AudioBufferProvider* bufferProvider);
+    void        process();
+
+    uint32_t    trackNames() const { return mTrackNames; }
+
+    size_t      getUnreleasedFrames(int name) const;
+
+    static inline bool isValidPcmTrackFormat(audio_format_t format) {
+        switch (format) {
+        case AUDIO_FORMAT_PCM_8_BIT:
+        case AUDIO_FORMAT_PCM_16_BIT:
+        case AUDIO_FORMAT_PCM_24_BIT_PACKED:
+        case AUDIO_FORMAT_PCM_32_BIT:
+        case AUDIO_FORMAT_PCM_FLOAT:
+            return true;
+        default:
+            return false;
+        }
+    }
+
+private:
+
+    enum {
+        // FIXME this representation permits up to 8 channels
+        NEEDS_CHANNEL_COUNT__MASK   = 0x00000007,
+    };
+
+    enum {
+        NEEDS_CHANNEL_1             = 0x00000000,   // mono
+        NEEDS_CHANNEL_2             = 0x00000001,   // stereo
+
+        // sample format is not explicitly specified, and is assumed to be AUDIO_FORMAT_PCM_16_BIT
+
+        NEEDS_MUTE                  = 0x00000100,
+        NEEDS_RESAMPLE              = 0x00001000,
+        NEEDS_AUX                   = 0x00010000,
+    };
+
+    struct state_t;
+    struct track_t;
+
+    typedef void (*hook_t)(track_t* t, int32_t* output, size_t numOutFrames, int32_t* temp,
+                           int32_t* aux);
+    static const int BLOCKSIZE = 16; // 4 cache lines
+
+    struct track_t {
+        uint32_t    needs;
+
+        // TODO: Eventually remove legacy integer volume settings
+        union {
+        int16_t     volume[MAX_NUM_VOLUMES]; // U4.12 fixed point (top bit should be zero)
+        int32_t     volumeRL;
+        };
+
+        int32_t     prevVolume[MAX_NUM_VOLUMES];
+
+        // 16-byte boundary
+
+        int32_t     volumeInc[MAX_NUM_VOLUMES];
+        int32_t     auxInc;
+        int32_t     prevAuxLevel;
+
+        // 16-byte boundary
+
+        int16_t     auxLevel;       // 0 <= auxLevel <= MAX_GAIN_INT, but signed for mul performance
+        uint16_t    frameCount;
+
+        uint8_t     channelCount;   // 1 or 2, redundant with (needs & NEEDS_CHANNEL_COUNT__MASK)
+        uint8_t     unused_padding; // formerly format, was always 16
+        uint16_t    enabled;        // actually bool
+        audio_channel_mask_t channelMask;
+
+        // actual buffer provider used by the track hooks, see DownmixerBufferProvider below
+        //  for how the Track buffer provider is wrapped by another one when dowmixing is required
+        AudioBufferProvider*                bufferProvider;
+
+        // 16-byte boundary
+
+        mutable AudioBufferProvider::Buffer buffer; // 8 bytes
+
+        hook_t      hook;
+        const void* in;             // current location in buffer
+
+        // 16-byte boundary
+
+        AudioResampler*     resampler;
+        uint32_t            sampleRate;
+        int32_t*           mainBuffer;
+        int32_t*           auxBuffer;
+
+        // 16-byte boundary
+
+        /* Buffer providers are constructed to translate the track input data as needed.
+         *
+         * TODO: perhaps make a single PlaybackConverterProvider class to move
+         * all pre-mixer track buffer conversions outside the AudioMixer class.
+         *
+         * 1) mInputBufferProvider: The AudioTrack buffer provider.
+         * 2) mReformatBufferProvider: If not NULL, performs the audio reformat to
+         *    match either mMixerInFormat or mDownmixRequiresFormat, if the downmixer
+         *    requires reformat. For example, it may convert floating point input to
+         *    PCM_16_bit if that's required by the downmixer.
+         * 3) downmixerBufferProvider: If not NULL, performs the channel remixing to match
+         *    the number of channels required by the mixer sink.
+         * 4) mPostDownmixReformatBufferProvider: If not NULL, performs reformatting from
+         *    the downmixer requirements to the mixer engine input requirements.
+         * 5) mTimestretchBufferProvider: Adds timestretching for playback rate
+         */
+        AudioBufferProvider*     mInputBufferProvider;    // externally provided buffer provider.
+        PassthruBufferProvider*  mReformatBufferProvider; // provider wrapper for reformatting.
+        PassthruBufferProvider*  downmixerBufferProvider; // wrapper for channel conversion.
+        PassthruBufferProvider*  mPostDownmixReformatBufferProvider;
+        PassthruBufferProvider*  mTimestretchBufferProvider;
+
+        int32_t     sessionId;
+
+        audio_format_t mMixerFormat;     // output mix format: AUDIO_FORMAT_PCM_(FLOAT|16_BIT)
+        audio_format_t mFormat;          // input track format
+        audio_format_t mMixerInFormat;   // mix internal format AUDIO_FORMAT_PCM_(FLOAT|16_BIT)
+                                         // each track must be converted to this format.
+        audio_format_t mDownmixRequiresFormat;  // required downmixer format
+                                                // AUDIO_FORMAT_PCM_16_BIT if 16 bit necessary
+                                                // AUDIO_FORMAT_INVALID if no required format
+
+        float          mVolume[MAX_NUM_VOLUMES];     // floating point set volume
+        float          mPrevVolume[MAX_NUM_VOLUMES]; // floating point previous volume
+        float          mVolumeInc[MAX_NUM_VOLUMES];  // floating point volume increment
+
+        float          mAuxLevel;                     // floating point set aux level
+        float          mPrevAuxLevel;                 // floating point prev aux level
+        float          mAuxInc;                       // floating point aux increment
+
+        audio_channel_mask_t mMixerChannelMask;
+        uint32_t             mMixerChannelCount;
+
+        AudioPlaybackRate    mPlaybackRate;
+
+        bool        needsRamp() { return (volumeInc[0] | volumeInc[1] | auxInc) != 0; }
+        bool        setResampler(uint32_t trackSampleRate, uint32_t devSampleRate);
+        bool        doesResample() const { return resampler != NULL; }
+        void        resetResampler() { if (resampler != NULL) resampler->reset(); }
+        void        adjustVolumeRamp(bool aux, bool useFloat = false);
+        size_t      getUnreleasedFrames() const { return resampler != NULL ?
+                                                    resampler->getUnreleasedFrames() : 0; };
+
+        status_t    prepareForDownmix();
+        void        unprepareForDownmix();
+        status_t    prepareForReformat();
+        void        unprepareForReformat();
+        bool        setPlaybackRate(const AudioPlaybackRate &playbackRate);
+        void        reconfigureBufferProviders();
+    };
+
+    typedef void (*process_hook_t)(state_t* state);
+
+    // pad to 32-bytes to fill cache line
+    struct state_t {
+        uint32_t        enabledTracks;
+        uint32_t        needsChanged;
+        size_t          frameCount;
+        process_hook_t  hook;   // one of process__*, never NULL
+        int32_t         *outputTemp;
+        int32_t         *resampleTemp;
+        NBLog::Writer*  mLog;
+        int32_t         reserved[1];
+        // FIXME allocate dynamically to save some memory when maxNumTracks < MAX_NUM_TRACKS
+        track_t         tracks[MAX_NUM_TRACKS] __attribute__((aligned(32)));
+    };
+
+    // bitmask of allocated track names, where bit 0 corresponds to TRACK0 etc.
+    uint32_t        mTrackNames;
+
+    // bitmask of configured track names; ~0 if maxNumTracks == MAX_NUM_TRACKS,
+    // but will have fewer bits set if maxNumTracks < MAX_NUM_TRACKS
+    const uint32_t  mConfiguredNames;
+
+    const uint32_t  mSampleRate;
+
+    NBLog::Writer   mDummyLog;
+public:
+    void            setLog(NBLog::Writer* log);
+private:
+    state_t         mState __attribute__((aligned(32)));
+
+    // Call after changing either the enabled status of a track, or parameters of an enabled track.
+    // OK to call more often than that, but unnecessary.
+    void invalidateState(uint32_t mask);
+
+    bool setChannelMasks(int name,
+            audio_channel_mask_t trackChannelMask, audio_channel_mask_t mixerChannelMask);
+
+    static void track__genericResample(track_t* t, int32_t* out, size_t numFrames, int32_t* temp,
+            int32_t* aux);
+    static void track__nop(track_t* t, int32_t* out, size_t numFrames, int32_t* temp, int32_t* aux);
+    static void track__16BitsStereo(track_t* t, int32_t* out, size_t numFrames, int32_t* temp,
+            int32_t* aux);
+    static void track__16BitsMono(track_t* t, int32_t* out, size_t numFrames, int32_t* temp,
+            int32_t* aux);
+    static void volumeRampStereo(track_t* t, int32_t* out, size_t frameCount, int32_t* temp,
+            int32_t* aux);
+    static void volumeStereo(track_t* t, int32_t* out, size_t frameCount, int32_t* temp,
+            int32_t* aux);
+
+    static void process__validate(state_t* state);
+    static void process__nop(state_t* state);
+    static void process__genericNoResampling(state_t* state);
+    static void process__genericResampling(state_t* state);
+    static void process__OneTrack16BitsStereoNoResampling(state_t* state);
+
+    static pthread_once_t   sOnceControl;
+    static void             sInitRoutine();
+
+    /* multi-format volume mixing function (calls template functions
+     * in AudioMixerOps.h).  The template parameters are as follows:
+     *
+     *   MIXTYPE     (see AudioMixerOps.h MIXTYPE_* enumeration)
+     *   USEFLOATVOL (set to true if float volume is used)
+     *   ADJUSTVOL   (set to true if volume ramp parameters needs adjustment afterwards)
+     *   TO: int32_t (Q4.27) or float
+     *   TI: int32_t (Q4.27) or int16_t (Q0.15) or float
+     *   TA: int32_t (Q4.27)
+     */
+    template <int MIXTYPE, bool USEFLOATVOL, bool ADJUSTVOL,
+        typename TO, typename TI, typename TA>
+    static void volumeMix(TO *out, size_t outFrames,
+            const TI *in, TA *aux, bool ramp, AudioMixer::track_t *t);
+
+    // multi-format process hooks
+    template <int MIXTYPE, typename TO, typename TI, typename TA>
+    static void process_NoResampleOneTrack(state_t* state);
+
+    // multi-format track hooks
+    template <int MIXTYPE, typename TO, typename TI, typename TA>
+    static void track__Resample(track_t* t, TO* out, size_t frameCount,
+            TO* temp __unused, TA* aux);
+    template <int MIXTYPE, typename TO, typename TI, typename TA>
+    static void track__NoResample(track_t* t, TO* out, size_t frameCount,
+            TO* temp __unused, TA* aux);
+
+    static void convertMixerFormat(void *out, audio_format_t mixerOutFormat,
+            void *in, audio_format_t mixerInFormat, size_t sampleCount);
+
+    // hook types
+    enum {
+        PROCESSTYPE_NORESAMPLEONETRACK,
+    };
+    enum {
+        TRACKTYPE_NOP,
+        TRACKTYPE_RESAMPLE,
+        TRACKTYPE_NORESAMPLE,
+        TRACKTYPE_NORESAMPLEMONO,
+    };
+
+    // functions for determining the proper process and track hooks.
+    static process_hook_t getProcessHook(int processType, uint32_t channelCount,
+            audio_format_t mixerInFormat, audio_format_t mixerOutFormat);
+    static hook_t getTrackHook(int trackType, uint32_t channelCount,
+            audio_format_t mixerInFormat, audio_format_t mixerOutFormat);
+};
+
+// ----------------------------------------------------------------------------
+} // namespace android
+
+#endif // ANDROID_AUDIO_MIXER_H
diff --git a/media/libaudioclient/include/AudioParameter.h b/media/libaudioclient/include/AudioParameter.h
new file mode 100644
index 0000000..1ace607
--- /dev/null
+++ b/media/libaudioclient/include/AudioParameter.h
@@ -0,0 +1,105 @@
+/*
+ * Copyright (C) 2008-2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_AUDIOPARAMETER_H_
+#define ANDROID_AUDIOPARAMETER_H_
+
+#include <utils/Errors.h>
+#include <utils/KeyedVector.h>
+#include <utils/String8.h>
+
+namespace android {
+
+class AudioParameter {
+
+public:
+    AudioParameter() {}
+    AudioParameter(const String8& keyValuePairs);
+    virtual ~AudioParameter();
+
+    // reserved parameter keys for changing standard parameters with setParameters() function.
+    // Using these keys is mandatory for AudioFlinger to properly monitor audio output/input
+    // configuration changes and act accordingly.
+    //  keyRouting: to change audio routing, value is an int in audio_devices_t
+    //  keySamplingRate: to change sampling rate routing, value is an int
+    //  keyFormat: to change audio format, value is an int in audio_format_t
+    //  keyChannels: to change audio channel configuration, value is an int in audio_channels_t
+    //  keyFrameCount: to change audio output frame count, value is an int
+    //  keyInputSource: to change audio input source, value is an int in audio_source_t
+    //     (defined in media/mediarecorder.h)
+    //  keyScreenState: either "on" or "off"
+    static const char * const keyRouting;
+    static const char * const keySamplingRate;
+    static const char * const keyFormat;
+    static const char * const keyChannels;
+    static const char * const keyFrameCount;
+    static const char * const keyInputSource;
+    static const char * const keyScreenState;
+
+    //  keyBtNrec: BT SCO Noise Reduction + Echo Cancellation parameters
+    //  keyHwAvSync: get HW synchronization source identifier from a device
+    //  keyMonoOutput: Enable mono audio playback
+    //  keyStreamHwAvSync: set HW synchronization source identifier on a stream
+    static const char * const keyBtNrec;
+    static const char * const keyHwAvSync;
+    static const char * const keyMonoOutput;
+    static const char * const keyStreamHwAvSync;
+
+    //  keyStreamConnect / Disconnect: value is an int in audio_devices_t
+    static const char * const keyStreamConnect;
+    static const char * const keyStreamDisconnect;
+
+    // For querying stream capabilities. All the returned values are lists.
+    //   keyStreamSupportedFormats: audio_format_t
+    //   keyStreamSupportedChannels: audio_channel_mask_t
+    //   keyStreamSupportedSamplingRates: sampling rate values
+    static const char * const keyStreamSupportedFormats;
+    static const char * const keyStreamSupportedChannels;
+    static const char * const keyStreamSupportedSamplingRates;
+
+    static const char * const valueOn;
+    static const char * const valueOff;
+
+    static const char * const valueListSeparator;
+
+    String8 toString() const { return toStringImpl(true); }
+    String8 keysToString() const { return toStringImpl(false); }
+
+    status_t add(const String8& key, const String8& value);
+    status_t addInt(const String8& key, const int value);
+    status_t addKey(const String8& key);
+    status_t addFloat(const String8& key, const float value);
+
+    status_t remove(const String8& key);
+
+    status_t get(const String8& key, String8& value) const;
+    status_t getInt(const String8& key, int& value) const;
+    status_t getFloat(const String8& key, float& value) const;
+    status_t getAt(size_t index, String8& key) const;
+    status_t getAt(size_t index, String8& key, String8& value) const;
+
+    size_t size() const { return mParameters.size(); }
+
+private:
+    String8 mKeyValuePairs;
+    KeyedVector <String8, String8> mParameters;
+
+    String8 toStringImpl(bool useValues) const;
+};
+
+};  // namespace android
+
+#endif  /*ANDROID_AUDIOPARAMETER_H_*/
diff --git a/include/media/AudioPolicy.h b/media/libaudioclient/include/AudioPolicy.h
similarity index 100%
rename from include/media/AudioPolicy.h
rename to media/libaudioclient/include/AudioPolicy.h
diff --git a/media/libaudioclient/include/AudioPolicyHelper.h b/media/libaudioclient/include/AudioPolicyHelper.h
new file mode 100644
index 0000000..04f6a20
--- /dev/null
+++ b/media/libaudioclient/include/AudioPolicyHelper.h
@@ -0,0 +1,117 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#ifndef AUDIO_POLICY_HELPER_H_
+#define AUDIO_POLICY_HELPER_H_
+
+#include <system/audio.h>
+
+static audio_stream_type_t audio_attributes_to_stream_type(const audio_attributes_t *attr)
+{
+    // flags to stream type mapping
+    if ((attr->flags & AUDIO_FLAG_AUDIBILITY_ENFORCED) == AUDIO_FLAG_AUDIBILITY_ENFORCED) {
+        return AUDIO_STREAM_ENFORCED_AUDIBLE;
+    }
+    if ((attr->flags & AUDIO_FLAG_SCO) == AUDIO_FLAG_SCO) {
+        return AUDIO_STREAM_BLUETOOTH_SCO;
+    }
+
+    // usage to stream type mapping
+    switch (attr->usage) {
+    case AUDIO_USAGE_MEDIA:
+    case AUDIO_USAGE_GAME:
+    case AUDIO_USAGE_ASSISTANCE_NAVIGATION_GUIDANCE:
+    case AUDIO_USAGE_ASSISTANT:
+        return AUDIO_STREAM_MUSIC;
+    case AUDIO_USAGE_ASSISTANCE_ACCESSIBILITY:
+        return AUDIO_STREAM_ACCESSIBILITY;
+    case AUDIO_USAGE_ASSISTANCE_SONIFICATION:
+        return AUDIO_STREAM_SYSTEM;
+    case AUDIO_USAGE_VOICE_COMMUNICATION:
+        return AUDIO_STREAM_VOICE_CALL;
+
+    case AUDIO_USAGE_VOICE_COMMUNICATION_SIGNALLING:
+        return AUDIO_STREAM_DTMF;
+
+    case AUDIO_USAGE_ALARM:
+        return AUDIO_STREAM_ALARM;
+    case AUDIO_USAGE_NOTIFICATION_TELEPHONY_RINGTONE:
+        return AUDIO_STREAM_RING;
+
+    case AUDIO_USAGE_NOTIFICATION:
+    case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_REQUEST:
+    case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_INSTANT:
+    case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_DELAYED:
+    case AUDIO_USAGE_NOTIFICATION_EVENT:
+        return AUDIO_STREAM_NOTIFICATION;
+
+    case AUDIO_USAGE_UNKNOWN:
+    default:
+        return AUDIO_STREAM_MUSIC;
+    }
+}
+
+static void stream_type_to_audio_attributes(audio_stream_type_t streamType,
+                                     audio_attributes_t *attr) {
+    memset(attr, 0, sizeof(audio_attributes_t));
+
+    switch (streamType) {
+    case AUDIO_STREAM_DEFAULT:
+    case AUDIO_STREAM_MUSIC:
+        attr->content_type = AUDIO_CONTENT_TYPE_MUSIC;
+        attr->usage = AUDIO_USAGE_MEDIA;
+        break;
+    case AUDIO_STREAM_VOICE_CALL:
+        attr->content_type = AUDIO_CONTENT_TYPE_SPEECH;
+        attr->usage = AUDIO_USAGE_VOICE_COMMUNICATION;
+        break;
+    case AUDIO_STREAM_ENFORCED_AUDIBLE:
+        attr->flags  |= AUDIO_FLAG_AUDIBILITY_ENFORCED;
+        // intended fall through, attributes in common with STREAM_SYSTEM
+    case AUDIO_STREAM_SYSTEM:
+        attr->content_type = AUDIO_CONTENT_TYPE_SONIFICATION;
+        attr->usage = AUDIO_USAGE_ASSISTANCE_SONIFICATION;
+        break;
+    case AUDIO_STREAM_RING:
+        attr->content_type = AUDIO_CONTENT_TYPE_SONIFICATION;
+        attr->usage = AUDIO_USAGE_NOTIFICATION_TELEPHONY_RINGTONE;
+        break;
+    case AUDIO_STREAM_ALARM:
+        attr->content_type = AUDIO_CONTENT_TYPE_SONIFICATION;
+        attr->usage = AUDIO_USAGE_ALARM;
+        break;
+    case AUDIO_STREAM_NOTIFICATION:
+        attr->content_type = AUDIO_CONTENT_TYPE_SONIFICATION;
+        attr->usage = AUDIO_USAGE_NOTIFICATION;
+        break;
+    case AUDIO_STREAM_BLUETOOTH_SCO:
+        attr->content_type = AUDIO_CONTENT_TYPE_SPEECH;
+        attr->usage = AUDIO_USAGE_VOICE_COMMUNICATION;
+        attr->flags |= AUDIO_FLAG_SCO;
+        break;
+    case AUDIO_STREAM_DTMF:
+        attr->content_type = AUDIO_CONTENT_TYPE_SONIFICATION;
+        attr->usage = AUDIO_USAGE_VOICE_COMMUNICATION_SIGNALLING;
+        break;
+    case AUDIO_STREAM_TTS:
+        attr->content_type = AUDIO_CONTENT_TYPE_SPEECH;
+        attr->usage = AUDIO_USAGE_ASSISTANCE_ACCESSIBILITY;
+        break;
+    default:
+        ALOGE("invalid stream type %d when converting to attributes", streamType);
+    }
+}
+
+#endif //AUDIO_POLICY_HELPER_H_
diff --git a/media/libaudioclient/include/AudioRecord.h b/media/libaudioclient/include/AudioRecord.h
new file mode 100644
index 0000000..1c8746f
--- /dev/null
+++ b/media/libaudioclient/include/AudioRecord.h
@@ -0,0 +1,659 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_AUDIORECORD_H
+#define ANDROID_AUDIORECORD_H
+
+#include <cutils/sched_policy.h>
+#include <media/AudioSystem.h>
+#include <media/AudioTimestamp.h>
+#include <media/IAudioRecord.h>
+#include <media/Modulo.h>
+#include <utils/threads.h>
+
+namespace android {
+
+// ----------------------------------------------------------------------------
+
+struct audio_track_cblk_t;
+class AudioRecordClientProxy;
+
+// ----------------------------------------------------------------------------
+
+class AudioRecord : public RefBase
+{
+public:
+
+    /* Events used by AudioRecord callback function (callback_t).
+     * Keep in sync with frameworks/base/media/java/android/media/AudioRecord.java NATIVE_EVENT_*.
+     */
+    enum event_type {
+        EVENT_MORE_DATA = 0,        // Request to read available data from buffer.
+                                    // If this event is delivered but the callback handler
+                                    // does not want to read the available data, the handler must
+                                    // explicitly ignore the event by setting frameCount to zero.
+        EVENT_OVERRUN = 1,          // Buffer overrun occurred.
+        EVENT_MARKER = 2,           // Record head is at the specified marker position
+                                    // (See setMarkerPosition()).
+        EVENT_NEW_POS = 3,          // Record head is at a new position
+                                    // (See setPositionUpdatePeriod()).
+        EVENT_NEW_IAUDIORECORD = 4, // IAudioRecord was re-created, either due to re-routing and
+                                    // voluntary invalidation by mediaserver, or mediaserver crash.
+    };
+
+    /* Client should declare a Buffer and pass address to obtainBuffer()
+     * and releaseBuffer().  See also callback_t for EVENT_MORE_DATA.
+     */
+
+    class Buffer
+    {
+    public:
+        // FIXME use m prefix
+        size_t      frameCount;     // number of sample frames corresponding to size;
+                                    // on input to obtainBuffer() it is the number of frames desired
+                                    // on output from obtainBuffer() it is the number of available
+                                    //    frames to be read
+                                    // on input to releaseBuffer() it is currently ignored
+
+        size_t      size;           // input/output in bytes == frameCount * frameSize
+                                    // on input to obtainBuffer() it is ignored
+                                    // on output from obtainBuffer() it is the number of available
+                                    //    bytes to be read, which is frameCount * frameSize
+                                    // on input to releaseBuffer() it is the number of bytes to
+                                    //    release
+                                    // FIXME This is redundant with respect to frameCount.  Consider
+                                    //    removing size and making frameCount the primary field.
+
+        union {
+            void*       raw;
+            short*      i16;        // signed 16-bit
+            int8_t*     i8;         // unsigned 8-bit, offset by 0x80
+                                    // input to obtainBuffer(): unused, output: pointer to buffer
+        };
+    };
+
+    /* As a convenience, if a callback is supplied, a handler thread
+     * is automatically created with the appropriate priority. This thread
+     * invokes the callback when a new buffer becomes available or various conditions occur.
+     * Parameters:
+     *
+     * event:   type of event notified (see enum AudioRecord::event_type).
+     * user:    Pointer to context for use by the callback receiver.
+     * info:    Pointer to optional parameter according to event type:
+     *          - EVENT_MORE_DATA: pointer to AudioRecord::Buffer struct. The callback must not read
+     *                             more bytes than indicated by 'size' field and update 'size' if
+     *                             fewer bytes are consumed.
+     *          - EVENT_OVERRUN: unused.
+     *          - EVENT_MARKER: pointer to const uint32_t containing the marker position in frames.
+     *          - EVENT_NEW_POS: pointer to const uint32_t containing the new position in frames.
+     *          - EVENT_NEW_IAUDIORECORD: unused.
+     */
+
+    typedef void (*callback_t)(int event, void* user, void *info);
+
+    /* Returns the minimum frame count required for the successful creation of
+     * an AudioRecord object.
+     * Returned status (from utils/Errors.h) can be:
+     *  - NO_ERROR: successful operation
+     *  - NO_INIT: audio server or audio hardware not initialized
+     *  - BAD_VALUE: unsupported configuration
+     * frameCount is guaranteed to be non-zero if status is NO_ERROR,
+     * and is undefined otherwise.
+     * FIXME This API assumes a route, and so should be deprecated.
+     */
+
+     static status_t getMinFrameCount(size_t* frameCount,
+                                      uint32_t sampleRate,
+                                      audio_format_t format,
+                                      audio_channel_mask_t channelMask);
+
+    /* How data is transferred from AudioRecord
+     */
+    enum transfer_type {
+        TRANSFER_DEFAULT,   // not specified explicitly; determine from the other parameters
+        TRANSFER_CALLBACK,  // callback EVENT_MORE_DATA
+        TRANSFER_OBTAIN,    // call obtainBuffer() and releaseBuffer()
+        TRANSFER_SYNC,      // synchronous read()
+    };
+
+    /* Constructs an uninitialized AudioRecord. No connection with
+     * AudioFlinger takes place.  Use set() after this.
+     *
+     * Parameters:
+     *
+     * opPackageName:      The package name used for app ops.
+     */
+                        AudioRecord(const String16& opPackageName);
+
+    /* Creates an AudioRecord object and registers it with AudioFlinger.
+     * Once created, the track needs to be started before it can be used.
+     * Unspecified values are set to appropriate default values.
+     *
+     * Parameters:
+     *
+     * inputSource:        Select the audio input to record from (e.g. AUDIO_SOURCE_DEFAULT).
+     * sampleRate:         Data sink sampling rate in Hz.  Zero means to use the source sample rate.
+     * format:             Audio format (e.g AUDIO_FORMAT_PCM_16_BIT for signed
+     *                     16 bits per sample).
+     * channelMask:        Channel mask, such that audio_is_input_channel(channelMask) is true.
+     * opPackageName:      The package name used for app ops.
+     * frameCount:         Minimum size of track PCM buffer in frames. This defines the
+     *                     application's contribution to the
+     *                     latency of the track.  The actual size selected by the AudioRecord could
+     *                     be larger if the requested size is not compatible with current audio HAL
+     *                     latency.  Zero means to use a default value.
+     * cbf:                Callback function. If not null, this function is called periodically
+     *                     to consume new data in TRANSFER_CALLBACK mode
+     *                     and inform of marker, position updates, etc.
+     * user:               Context for use by the callback receiver.
+     * notificationFrames: The callback function is called each time notificationFrames PCM
+     *                     frames are ready in record track output buffer.
+     * sessionId:          Not yet supported.
+     * transferType:       How data is transferred from AudioRecord.
+     * flags:              See comments on audio_input_flags_t in <system/audio.h>
+     * pAttributes:        If not NULL, supersedes inputSource for use case selection.
+     * threadCanCallJava:  Not present in parameter list, and so is fixed at false.
+     */
+
+                        AudioRecord(audio_source_t inputSource,
+                                    uint32_t sampleRate,
+                                    audio_format_t format,
+                                    audio_channel_mask_t channelMask,
+                                    const String16& opPackageName,
+                                    size_t frameCount = 0,
+                                    callback_t cbf = NULL,
+                                    void* user = NULL,
+                                    uint32_t notificationFrames = 0,
+                                    audio_session_t sessionId = AUDIO_SESSION_ALLOCATE,
+                                    transfer_type transferType = TRANSFER_DEFAULT,
+                                    audio_input_flags_t flags = AUDIO_INPUT_FLAG_NONE,
+                                    uid_t uid = AUDIO_UID_INVALID,
+                                    pid_t pid = -1,
+                                    const audio_attributes_t* pAttributes = NULL);
+
+    /* Terminates the AudioRecord and unregisters it from AudioFlinger.
+     * Also destroys all resources associated with the AudioRecord.
+     */
+protected:
+                        virtual ~AudioRecord();
+public:
+
+    /* Initialize an AudioRecord that was created using the AudioRecord() constructor.
+     * Don't call set() more than once, or after an AudioRecord() constructor that takes parameters.
+     * set() is not multi-thread safe.
+     * Returned status (from utils/Errors.h) can be:
+     *  - NO_ERROR: successful intialization
+     *  - INVALID_OPERATION: AudioRecord is already initialized or record device is already in use
+     *  - BAD_VALUE: invalid parameter (channelMask, format, sampleRate...)
+     *  - NO_INIT: audio server or audio hardware not initialized
+     *  - PERMISSION_DENIED: recording is not allowed for the requesting process
+     * If status is not equal to NO_ERROR, don't call any other APIs on this AudioRecord.
+     *
+     * Parameters not listed in the AudioRecord constructors above:
+     *
+     * threadCanCallJava:  Whether callbacks are made from an attached thread and thus can call JNI.
+     */
+            status_t    set(audio_source_t inputSource,
+                            uint32_t sampleRate,
+                            audio_format_t format,
+                            audio_channel_mask_t channelMask,
+                            size_t frameCount = 0,
+                            callback_t cbf = NULL,
+                            void* user = NULL,
+                            uint32_t notificationFrames = 0,
+                            bool threadCanCallJava = false,
+                            audio_session_t sessionId = AUDIO_SESSION_ALLOCATE,
+                            transfer_type transferType = TRANSFER_DEFAULT,
+                            audio_input_flags_t flags = AUDIO_INPUT_FLAG_NONE,
+                            uid_t uid = AUDIO_UID_INVALID,
+                            pid_t pid = -1,
+                            const audio_attributes_t* pAttributes = NULL);
+
+    /* Result of constructing the AudioRecord. This must be checked for successful initialization
+     * before using any AudioRecord API (except for set()), because using
+     * an uninitialized AudioRecord produces undefined results.
+     * See set() method above for possible return codes.
+     */
+            status_t    initCheck() const   { return mStatus; }
+
+    /* Returns this track's estimated latency in milliseconds.
+     * This includes the latency due to AudioRecord buffer size, resampling if applicable,
+     * and audio hardware driver.
+     */
+            uint32_t    latency() const     { return mLatency; }
+
+   /* getters, see constructor and set() */
+
+            audio_format_t format() const   { return mFormat; }
+            uint32_t    channelCount() const    { return mChannelCount; }
+            size_t      frameCount() const  { return mFrameCount; }
+            size_t      frameSize() const   { return mFrameSize; }
+            audio_source_t inputSource() const  { return mAttributes.source; }
+
+    /* After it's created the track is not active. Call start() to
+     * make it active. If set, the callback will start being called.
+     * If event is not AudioSystem::SYNC_EVENT_NONE, the capture start will be delayed until
+     * the specified event occurs on the specified trigger session.
+     */
+            status_t    start(AudioSystem::sync_event_t event = AudioSystem::SYNC_EVENT_NONE,
+                              audio_session_t triggerSession = AUDIO_SESSION_NONE);
+
+    /* Stop a track.  The callback will cease being called.  Note that obtainBuffer() still
+     * works and will drain buffers until the pool is exhausted, and then will return WOULD_BLOCK.
+     */
+            void        stop();
+            bool        stopped() const;
+
+    /* Return the sink sample rate for this record track in Hz.
+     * If specified as zero in constructor or set(), this will be the source sample rate.
+     * Unlike AudioTrack, the sample rate is const after initialization, so doesn't need a lock.
+     */
+            uint32_t    getSampleRate() const   { return mSampleRate; }
+
+    /* Sets marker position. When record reaches the number of frames specified,
+     * a callback with event type EVENT_MARKER is called. Calling setMarkerPosition
+     * with marker == 0 cancels marker notification callback.
+     * To set a marker at a position which would compute as 0,
+     * a workaround is to set the marker at a nearby position such as ~0 or 1.
+     * If the AudioRecord has been opened with no callback function associated,
+     * the operation will fail.
+     *
+     * Parameters:
+     *
+     * marker:   marker position expressed in wrapping (overflow) frame units,
+     *           like the return value of getPosition().
+     *
+     * Returned status (from utils/Errors.h) can be:
+     *  - NO_ERROR: successful operation
+     *  - INVALID_OPERATION: the AudioRecord has no callback installed.
+     */
+            status_t    setMarkerPosition(uint32_t marker);
+            status_t    getMarkerPosition(uint32_t *marker) const;
+
+    /* Sets position update period. Every time the number of frames specified has been recorded,
+     * a callback with event type EVENT_NEW_POS is called.
+     * Calling setPositionUpdatePeriod with updatePeriod == 0 cancels new position notification
+     * callback.
+     * If the AudioRecord has been opened with no callback function associated,
+     * the operation will fail.
+     * Extremely small values may be rounded up to a value the implementation can support.
+     *
+     * Parameters:
+     *
+     * updatePeriod:  position update notification period expressed in frames.
+     *
+     * Returned status (from utils/Errors.h) can be:
+     *  - NO_ERROR: successful operation
+     *  - INVALID_OPERATION: the AudioRecord has no callback installed.
+     */
+            status_t    setPositionUpdatePeriod(uint32_t updatePeriod);
+            status_t    getPositionUpdatePeriod(uint32_t *updatePeriod) const;
+
+    /* Return the total number of frames recorded since recording started.
+     * The counter will wrap (overflow) periodically, e.g. every ~27 hours at 44.1 kHz.
+     * It is reset to zero by stop().
+     *
+     * Parameters:
+     *
+     *  position:  Address where to return record head position.
+     *
+     * Returned status (from utils/Errors.h) can be:
+     *  - NO_ERROR: successful operation
+     *  - BAD_VALUE:  position is NULL
+     */
+            status_t    getPosition(uint32_t *position) const;
+
+    /* Return the record timestamp.
+     *
+     * Parameters:
+     *  timestamp: A pointer to the timestamp to be filled.
+     *
+     * Returned status (from utils/Errors.h) can be:
+     *  - NO_ERROR: successful operation
+     *  - BAD_VALUE: timestamp is NULL
+     */
+            status_t getTimestamp(ExtendedTimestamp *timestamp);
+
+    /* Returns a handle on the audio input used by this AudioRecord.
+     *
+     * Parameters:
+     *  none.
+     *
+     * Returned value:
+     *  handle on audio hardware input
+     */
+// FIXME The only known public caller is frameworks/opt/net/voip/src/jni/rtp/AudioGroup.cpp
+            audio_io_handle_t    getInput() const __attribute__((__deprecated__))
+                                                { return getInputPrivate(); }
+private:
+            audio_io_handle_t    getInputPrivate() const;
+public:
+
+    /* Returns the audio session ID associated with this AudioRecord.
+     *
+     * Parameters:
+     *  none.
+     *
+     * Returned value:
+     *  AudioRecord session ID.
+     *
+     * No lock needed because session ID doesn't change after first set().
+     */
+            audio_session_t getSessionId() const { return mSessionId; }
+
+    /* Public API for TRANSFER_OBTAIN mode.
+     * Obtains a buffer of up to "audioBuffer->frameCount" full frames.
+     * After draining these frames of data, the caller should release them with releaseBuffer().
+     * If the track buffer is not empty, obtainBuffer() returns as many contiguous
+     * full frames as are available immediately.
+     *
+     * If nonContig is non-NULL, it is an output parameter that will be set to the number of
+     * additional non-contiguous frames that are predicted to be available immediately,
+     * if the client were to release the first frames and then call obtainBuffer() again.
+     * This value is only a prediction, and needs to be confirmed.
+     * It will be set to zero for an error return.
+     *
+     * If the track buffer is empty and track is stopped, obtainBuffer() returns WOULD_BLOCK
+     * regardless of the value of waitCount.
+     * If the track buffer is empty and track is not stopped, obtainBuffer() blocks with a
+     * maximum timeout based on waitCount; see chart below.
+     * Buffers will be returned until the pool
+     * is exhausted, at which point obtainBuffer() will either block
+     * or return WOULD_BLOCK depending on the value of the "waitCount"
+     * parameter.
+     *
+     * Interpretation of waitCount:
+     *  +n  limits wait time to n * WAIT_PERIOD_MS,
+     *  -1  causes an (almost) infinite wait time,
+     *   0  non-blocking.
+     *
+     * Buffer fields
+     * On entry:
+     *  frameCount  number of frames requested
+     *  size        ignored
+     *  raw         ignored
+     * After error return:
+     *  frameCount  0
+     *  size        0
+     *  raw         undefined
+     * After successful return:
+     *  frameCount  actual number of frames available, <= number requested
+     *  size        actual number of bytes available
+     *  raw         pointer to the buffer
+     */
+
+            status_t    obtainBuffer(Buffer* audioBuffer, int32_t waitCount,
+                                size_t *nonContig = NULL);
+
+            // Explicit Routing
+    /**
+     * TODO Document this method.
+     */
+            status_t setInputDevice(audio_port_handle_t deviceId);
+
+    /**
+     * TODO Document this method.
+     */
+            audio_port_handle_t getInputDevice();
+
+     /* Returns the ID of the audio device actually used by the input to which this AudioRecord
+      * is attached.
+      * A value of AUDIO_PORT_HANDLE_NONE indicates the AudioRecord is not attached to any input.
+      *
+      * Parameters:
+      *  none.
+      */
+     audio_port_handle_t getRoutedDeviceId();
+
+    /* Add an AudioDeviceCallback. The caller will be notified when the audio device
+     * to which this AudioRecord is routed is updated.
+     * Replaces any previously installed callback.
+     * Parameters:
+     *  callback:  The callback interface
+     * Returns NO_ERROR if successful.
+     *         INVALID_OPERATION if the same callback is already installed.
+     *         NO_INIT or PREMISSION_DENIED if AudioFlinger service is not reachable
+     *         BAD_VALUE if the callback is NULL
+     */
+            status_t addAudioDeviceCallback(
+                    const sp<AudioSystem::AudioDeviceCallback>& callback);
+
+    /* remove an AudioDeviceCallback.
+     * Parameters:
+     *  callback:  The callback interface
+     * Returns NO_ERROR if successful.
+     *         INVALID_OPERATION if the callback is not installed
+     *         BAD_VALUE if the callback is NULL
+     */
+            status_t removeAudioDeviceCallback(
+                    const sp<AudioSystem::AudioDeviceCallback>& callback);
+
+private:
+    /* If nonContig is non-NULL, it is an output parameter that will be set to the number of
+     * additional non-contiguous frames that are predicted to be available immediately,
+     * if the client were to release the first frames and then call obtainBuffer() again.
+     * This value is only a prediction, and needs to be confirmed.
+     * It will be set to zero for an error return.
+     * FIXME We could pass an array of Buffers instead of only one Buffer to obtainBuffer(),
+     * in case the requested amount of frames is in two or more non-contiguous regions.
+     * FIXME requested and elapsed are both relative times.  Consider changing to absolute time.
+     */
+            status_t    obtainBuffer(Buffer* audioBuffer, const struct timespec *requested,
+                                     struct timespec *elapsed = NULL, size_t *nonContig = NULL);
+public:
+
+    /* Public API for TRANSFER_OBTAIN mode.
+     * Release an emptied buffer of "audioBuffer->frameCount" frames for AudioFlinger to re-fill.
+     *
+     * Buffer fields:
+     *  frameCount  currently ignored but recommend to set to actual number of frames consumed
+     *  size        actual number of bytes consumed, must be multiple of frameSize
+     *  raw         ignored
+     */
+            void        releaseBuffer(const Buffer* audioBuffer);
+
+    /* As a convenience we provide a read() interface to the audio buffer.
+     * Input parameter 'size' is in byte units.
+     * This is implemented on top of obtainBuffer/releaseBuffer. For best
+     * performance use callbacks. Returns actual number of bytes read >= 0,
+     * or one of the following negative status codes:
+     *      INVALID_OPERATION   AudioRecord is configured for streaming mode
+     *      BAD_VALUE           size is invalid
+     *      WOULD_BLOCK         when obtainBuffer() returns same, or
+     *                          AudioRecord was stopped during the read
+     *      or any other error code returned by IAudioRecord::start() or restoreRecord_l().
+     * Default behavior is to only return when all data has been transferred. Set 'blocking' to
+     * false for the method to return immediately without waiting to try multiple times to read
+     * the full content of the buffer.
+     */
+            ssize_t     read(void* buffer, size_t size, bool blocking = true);
+
+    /* Return the number of input frames lost in the audio driver since the last call of this
+     * function.  Audio driver is expected to reset the value to 0 and restart counting upon
+     * returning the current value by this function call.  Such loss typically occurs when the
+     * user space process is blocked longer than the capacity of audio driver buffers.
+     * Units: the number of input audio frames.
+     * FIXME The side-effect of resetting the counter may be incompatible with multi-client.
+     * Consider making it more like AudioTrack::getUnderrunFrames which doesn't have side effects.
+     */
+            uint32_t    getInputFramesLost() const;
+
+    /* Get the flags */
+            audio_input_flags_t getFlags() const { AutoMutex _l(mLock); return mFlags; }
+
+private:
+    /* copying audio record objects is not allowed */
+                        AudioRecord(const AudioRecord& other);
+            AudioRecord& operator = (const AudioRecord& other);
+
+    /* a small internal class to handle the callback */
+    class AudioRecordThread : public Thread
+    {
+    public:
+        AudioRecordThread(AudioRecord& receiver, bool bCanCallJava = false);
+
+        // Do not call Thread::requestExitAndWait() without first calling requestExit().
+        // Thread::requestExitAndWait() is not virtual, and the implementation doesn't do enough.
+        virtual void        requestExit();
+
+                void        pause();    // suspend thread from execution at next loop boundary
+                void        resume();   // allow thread to execute, if not requested to exit
+                void        wake();     // wake to handle changed notification conditions.
+
+    private:
+                void        pauseInternal(nsecs_t ns = 0LL);
+                                        // like pause(), but only used internally within thread
+
+        friend class AudioRecord;
+        virtual bool        threadLoop();
+        AudioRecord&        mReceiver;
+        virtual ~AudioRecordThread();
+        Mutex               mMyLock;    // Thread::mLock is private
+        Condition           mMyCond;    // Thread::mThreadExitedCondition is private
+        bool                mPaused;    // whether thread is requested to pause at next loop entry
+        bool                mPausedInt; // whether thread internally requests pause
+        nsecs_t             mPausedNs;  // if mPausedInt then associated timeout, otherwise ignored
+        bool                mIgnoreNextPausedInt;   // skip any internal pause and go immediately
+                                        // to processAudioBuffer() as state may have changed
+                                        // since pause time calculated.
+    };
+
+            // body of AudioRecordThread::threadLoop()
+            // returns the maximum amount of time before we would like to run again, where:
+            //      0           immediately
+            //      > 0         no later than this many nanoseconds from now
+            //      NS_WHENEVER still active but no particular deadline
+            //      NS_INACTIVE inactive so don't run again until re-started
+            //      NS_NEVER    never again
+            static const nsecs_t NS_WHENEVER = -1, NS_INACTIVE = -2, NS_NEVER = -3;
+            nsecs_t processAudioBuffer();
+
+            // caller must hold lock on mLock for all _l methods
+
+            status_t openRecord_l(const Modulo<uint32_t> &epoch, const String16& opPackageName);
+
+            // FIXME enum is faster than strcmp() for parameter 'from'
+            status_t restoreRecord_l(const char *from);
+
+    sp<AudioRecordThread>   mAudioRecordThread;
+    mutable Mutex           mLock;
+
+    // Current client state:  false = stopped, true = active.  Protected by mLock.  If more states
+    // are added, consider changing this to enum State { ... } mState as in AudioTrack.
+    bool                    mActive;
+
+    // for client callback handler
+    callback_t              mCbf;                   // callback handler for events, or NULL
+    void*                   mUserData;
+
+    // for notification APIs
+    uint32_t                mNotificationFramesReq; // requested number of frames between each
+                                                    // notification callback
+                                                    // as specified in constructor or set()
+    uint32_t                mNotificationFramesAct; // actual number of frames between each
+                                                    // notification callback
+    bool                    mRefreshRemaining;      // processAudioBuffer() should refresh
+                                                    // mRemainingFrames and mRetryOnPartialBuffer
+
+    // These are private to processAudioBuffer(), and are not protected by a lock
+    uint32_t                mRemainingFrames;       // number of frames to request in obtainBuffer()
+    bool                    mRetryOnPartialBuffer;  // sleep and retry after partial obtainBuffer()
+    uint32_t                mObservedSequence;      // last observed value of mSequence
+
+    Modulo<uint32_t>        mMarkerPosition;        // in wrapping (overflow) frame units
+    bool                    mMarkerReached;
+    Modulo<uint32_t>        mNewPosition;           // in frames
+    uint32_t                mUpdatePeriod;          // in frames, zero means no EVENT_NEW_POS
+
+    status_t                mStatus;
+
+    String16                mOpPackageName;         // The package name used for app ops.
+
+    size_t                  mFrameCount;            // corresponds to current IAudioRecord, value is
+                                                    // reported back by AudioFlinger to the client
+    size_t                  mReqFrameCount;         // frame count to request the first or next time
+                                                    // a new IAudioRecord is needed, non-decreasing
+
+    int64_t                 mFramesRead;            // total frames read. reset to zero after
+                                                    // the start() following stop(). It is not
+                                                    // changed after restoring the track.
+    int64_t                 mFramesReadServerOffset; // An offset to server frames read due to
+                                                    // restoring AudioRecord, or stop/start.
+    // constant after constructor or set()
+    uint32_t                mSampleRate;
+    audio_format_t          mFormat;
+    uint32_t                mChannelCount;
+    size_t                  mFrameSize;         // app-level frame size == AudioFlinger frame size
+    uint32_t                mLatency;           // in ms
+    audio_channel_mask_t    mChannelMask;
+
+    audio_input_flags_t     mFlags;                 // same as mOrigFlags, except for bits that may
+                                                    // be denied by client or server, such as
+                                                    // AUDIO_INPUT_FLAG_FAST.  mLock must be
+                                                    // held to read or write those bits reliably.
+    audio_input_flags_t     mOrigFlags;             // as specified in constructor or set(), const
+
+    audio_session_t         mSessionId;
+    transfer_type           mTransfer;
+
+    // Next 5 fields may be changed if IAudioRecord is re-created, but always != 0
+    // provided the initial set() was successful
+    sp<IAudioRecord>        mAudioRecord;
+    sp<IMemory>             mCblkMemory;
+    audio_track_cblk_t*     mCblk;              // re-load after mLock.unlock()
+    sp<IMemory>             mBufferMemory;
+    audio_io_handle_t       mInput;             // returned by AudioSystem::getInput()
+
+    int                     mPreviousPriority;  // before start()
+    SchedPolicy             mPreviousSchedulingGroup;
+    bool                    mAwaitBoost;    // thread should wait for priority boost before running
+
+    // The proxy should only be referenced while a lock is held because the proxy isn't
+    // multi-thread safe.
+    // An exception is that a blocking ClientProxy::obtainBuffer() may be called without a lock,
+    // provided that the caller also holds an extra reference to the proxy and shared memory to keep
+    // them around in case they are replaced during the obtainBuffer().
+    sp<AudioRecordClientProxy> mProxy;
+
+    bool                    mInOverrun;         // whether recorder is currently in overrun state
+
+private:
+    class DeathNotifier : public IBinder::DeathRecipient {
+    public:
+        DeathNotifier(AudioRecord* audioRecord) : mAudioRecord(audioRecord) { }
+    protected:
+        virtual void        binderDied(const wp<IBinder>& who);
+    private:
+        const wp<AudioRecord> mAudioRecord;
+    };
+
+    sp<DeathNotifier>       mDeathNotifier;
+    uint32_t                mSequence;              // incremented for each new IAudioRecord attempt
+    uid_t                   mClientUid;
+    pid_t                   mClientPid;
+    audio_attributes_t      mAttributes;
+
+    // For Device Selection API
+    //  a value of AUDIO_PORT_HANDLE_NONE indicated default (AudioPolicyManager) routing.
+    audio_port_handle_t    mSelectedDeviceId;
+    sp<AudioSystem::AudioDeviceCallback> mDeviceCallback;
+    audio_port_handle_t    mPortId;  // unique ID allocated by audio policy
+
+};
+
+}; // namespace android
+
+#endif // ANDROID_AUDIORECORD_H
diff --git a/media/libaudioclient/include/AudioSystem.h b/media/libaudioclient/include/AudioSystem.h
new file mode 100644
index 0000000..853d318
--- /dev/null
+++ b/media/libaudioclient/include/AudioSystem.h
@@ -0,0 +1,475 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_AUDIOSYSTEM_H_
+#define ANDROID_AUDIOSYSTEM_H_
+
+#include <sys/types.h>
+
+#include <media/AudioPolicy.h>
+#include <media/AudioIoDescriptor.h>
+#include <media/IAudioFlingerClient.h>
+#include <media/IAudioPolicyServiceClient.h>
+#include <system/audio.h>
+#include <system/audio_effect.h>
+#include <system/audio_policy.h>
+#include <utils/Errors.h>
+#include <utils/Mutex.h>
+
+namespace android {
+
+typedef void (*audio_error_callback)(status_t err);
+typedef void (*dynamic_policy_callback)(int event, String8 regId, int val);
+typedef void (*record_config_callback)(int event, audio_session_t session, int source,
+                const audio_config_base_t *clientConfig, const audio_config_base_t *deviceConfig,
+                audio_patch_handle_t patchHandle);
+
+class IAudioFlinger;
+class IAudioPolicyService;
+class String8;
+
+class AudioSystem
+{
+public:
+
+    // FIXME Declare in binder opcode order, similarly to IAudioFlinger.h and IAudioFlinger.cpp
+
+    /* These are static methods to control the system-wide AudioFlinger
+     * only privileged processes can have access to them
+     */
+
+    // mute/unmute microphone
+    static status_t muteMicrophone(bool state);
+    static status_t isMicrophoneMuted(bool *state);
+
+    // set/get master volume
+    static status_t setMasterVolume(float value);
+    static status_t getMasterVolume(float* volume);
+
+    // mute/unmute audio outputs
+    static status_t setMasterMute(bool mute);
+    static status_t getMasterMute(bool* mute);
+
+    // set/get stream volume on specified output
+    static status_t setStreamVolume(audio_stream_type_t stream, float value,
+                                    audio_io_handle_t output);
+    static status_t getStreamVolume(audio_stream_type_t stream, float* volume,
+                                    audio_io_handle_t output);
+
+    // mute/unmute stream
+    static status_t setStreamMute(audio_stream_type_t stream, bool mute);
+    static status_t getStreamMute(audio_stream_type_t stream, bool* mute);
+
+    // set audio mode in audio hardware
+    static status_t setMode(audio_mode_t mode);
+
+    // returns true in *state if tracks are active on the specified stream or have been active
+    // in the past inPastMs milliseconds
+    static status_t isStreamActive(audio_stream_type_t stream, bool *state, uint32_t inPastMs);
+    // returns true in *state if tracks are active for what qualifies as remote playback
+    // on the specified stream or have been active in the past inPastMs milliseconds. Remote
+    // playback isn't mutually exclusive with local playback.
+    static status_t isStreamActiveRemotely(audio_stream_type_t stream, bool *state,
+            uint32_t inPastMs);
+    // returns true in *state if a recorder is currently recording with the specified source
+    static status_t isSourceActive(audio_source_t source, bool *state);
+
+    // set/get audio hardware parameters. The function accepts a list of parameters
+    // key value pairs in the form: key1=value1;key2=value2;...
+    // Some keys are reserved for standard parameters (See AudioParameter class).
+    // The versions with audio_io_handle_t are intended for internal media framework use only.
+    static status_t setParameters(audio_io_handle_t ioHandle, const String8& keyValuePairs);
+    static String8  getParameters(audio_io_handle_t ioHandle, const String8& keys);
+    // The versions without audio_io_handle_t are intended for JNI.
+    static status_t setParameters(const String8& keyValuePairs);
+    static String8  getParameters(const String8& keys);
+
+    static void setErrorCallback(audio_error_callback cb);
+    static void setDynPolicyCallback(dynamic_policy_callback cb);
+    static void setRecordConfigCallback(record_config_callback);
+
+    // helper function to obtain AudioFlinger service handle
+    static const sp<IAudioFlinger> get_audio_flinger();
+
+    static float linearToLog(int volume);
+    static int logToLinear(float volume);
+
+    // Returned samplingRate and frameCount output values are guaranteed
+    // to be non-zero if status == NO_ERROR
+    // FIXME This API assumes a route, and so should be deprecated.
+    static status_t getOutputSamplingRate(uint32_t* samplingRate,
+            audio_stream_type_t stream);
+    // FIXME This API assumes a route, and so should be deprecated.
+    static status_t getOutputFrameCount(size_t* frameCount,
+            audio_stream_type_t stream);
+    // FIXME This API assumes a route, and so should be deprecated.
+    static status_t getOutputLatency(uint32_t* latency,
+            audio_stream_type_t stream);
+    // returns the audio HAL sample rate
+    static status_t getSamplingRate(audio_io_handle_t ioHandle,
+                                          uint32_t* samplingRate);
+    // For output threads with a fast mixer, returns the number of frames per normal mixer buffer.
+    // For output threads without a fast mixer, or for input, this is same as getFrameCountHAL().
+    static status_t getFrameCount(audio_io_handle_t ioHandle,
+                                  size_t* frameCount);
+    // returns the audio output latency in ms. Corresponds to
+    // audio_stream_out->get_latency()
+    static status_t getLatency(audio_io_handle_t output,
+                               uint32_t* latency);
+
+    // return status NO_ERROR implies *buffSize > 0
+    // FIXME This API assumes a route, and so should deprecated.
+    static status_t getInputBufferSize(uint32_t sampleRate, audio_format_t format,
+        audio_channel_mask_t channelMask, size_t* buffSize);
+
+    static status_t setVoiceVolume(float volume);
+
+    // return the number of audio frames written by AudioFlinger to audio HAL and
+    // audio dsp to DAC since the specified output has exited standby.
+    // returned status (from utils/Errors.h) can be:
+    // - NO_ERROR: successful operation, halFrames and dspFrames point to valid data
+    // - INVALID_OPERATION: Not supported on current hardware platform
+    // - BAD_VALUE: invalid parameter
+    // NOTE: this feature is not supported on all hardware platforms and it is
+    // necessary to check returned status before using the returned values.
+    static status_t getRenderPosition(audio_io_handle_t output,
+                                      uint32_t *halFrames,
+                                      uint32_t *dspFrames);
+
+    // return the number of input frames lost by HAL implementation, or 0 if the handle is invalid
+    static uint32_t getInputFramesLost(audio_io_handle_t ioHandle);
+
+    // Allocate a new unique ID for use as an audio session ID or I/O handle.
+    // If unable to contact AudioFlinger, returns AUDIO_UNIQUE_ID_ALLOCATE instead.
+    // FIXME If AudioFlinger were to ever exhaust the unique ID namespace,
+    //       this method could fail by returning either a reserved ID like AUDIO_UNIQUE_ID_ALLOCATE
+    //       or an unspecified existing unique ID.
+    static audio_unique_id_t newAudioUniqueId(audio_unique_id_use_t use);
+
+    static void acquireAudioSessionId(audio_session_t audioSession, pid_t pid);
+    static void releaseAudioSessionId(audio_session_t audioSession, pid_t pid);
+
+    // Get the HW synchronization source used for an audio session.
+    // Return a valid source or AUDIO_HW_SYNC_INVALID if an error occurs
+    // or no HW sync source is used.
+    static audio_hw_sync_t getAudioHwSyncForSession(audio_session_t sessionId);
+
+    // Indicate JAVA services are ready (scheduling, power management ...)
+    static status_t systemReady();
+
+    // Returns the number of frames per audio HAL buffer.
+    // Corresponds to audio_stream->get_buffer_size()/audio_stream_in_frame_size() for input.
+    // See also getFrameCount().
+    static status_t getFrameCountHAL(audio_io_handle_t ioHandle,
+                                     size_t* frameCount);
+
+    // Events used to synchronize actions between audio sessions.
+    // For instance SYNC_EVENT_PRESENTATION_COMPLETE can be used to delay recording start until
+    // playback is complete on another audio session.
+    // See definitions in MediaSyncEvent.java
+    enum sync_event_t {
+        SYNC_EVENT_SAME = -1,             // used internally to indicate restart with same event
+        SYNC_EVENT_NONE = 0,
+        SYNC_EVENT_PRESENTATION_COMPLETE,
+
+        //
+        // Define new events here: SYNC_EVENT_START, SYNC_EVENT_STOP, SYNC_EVENT_TIME ...
+        //
+        SYNC_EVENT_CNT,
+    };
+
+    // Timeout for synchronous record start. Prevents from blocking the record thread forever
+    // if the trigger event is not fired.
+    static const uint32_t kSyncRecordStartTimeOutMs = 30000;
+
+    //
+    // IAudioPolicyService interface (see AudioPolicyInterface for method descriptions)
+    //
+    static status_t setDeviceConnectionState(audio_devices_t device, audio_policy_dev_state_t state,
+                                             const char *device_address, const char *device_name);
+    static audio_policy_dev_state_t getDeviceConnectionState(audio_devices_t device,
+                                                                const char *device_address);
+    static status_t handleDeviceConfigChange(audio_devices_t device,
+                                             const char *device_address,
+                                             const char *device_name);
+    static status_t setPhoneState(audio_mode_t state);
+    static status_t setForceUse(audio_policy_force_use_t usage, audio_policy_forced_cfg_t config);
+    static audio_policy_forced_cfg_t getForceUse(audio_policy_force_use_t usage);
+
+    // Client must successfully hand off the handle reference to AudioFlinger via createTrack(),
+    // or release it with releaseOutput().
+    static audio_io_handle_t getOutput(audio_stream_type_t stream,
+                                        uint32_t samplingRate = 0,
+                                        audio_format_t format = AUDIO_FORMAT_DEFAULT,
+                                        audio_channel_mask_t channelMask = AUDIO_CHANNEL_OUT_STEREO,
+                                        audio_output_flags_t flags = AUDIO_OUTPUT_FLAG_NONE,
+                                        const audio_offload_info_t *offloadInfo = NULL);
+    static status_t getOutputForAttr(const audio_attributes_t *attr,
+                                     audio_io_handle_t *output,
+                                     audio_session_t session,
+                                     audio_stream_type_t *stream,
+                                     uid_t uid,
+                                     const audio_config_t *config,
+                                     audio_output_flags_t flags,
+                                     audio_port_handle_t selectedDeviceId,
+                                     audio_port_handle_t *portId);
+    static status_t startOutput(audio_io_handle_t output,
+                                audio_stream_type_t stream,
+                                audio_session_t session);
+    static status_t stopOutput(audio_io_handle_t output,
+                               audio_stream_type_t stream,
+                               audio_session_t session);
+    static void releaseOutput(audio_io_handle_t output,
+                              audio_stream_type_t stream,
+                              audio_session_t session);
+
+    // Client must successfully hand off the handle reference to AudioFlinger via openRecord(),
+    // or release it with releaseInput().
+    static status_t getInputForAttr(const audio_attributes_t *attr,
+                                    audio_io_handle_t *input,
+                                    audio_session_t session,
+                                    pid_t pid,
+                                    uid_t uid,
+                                    const audio_config_base_t *config,
+                                    audio_input_flags_t flags,
+                                    audio_port_handle_t selectedDeviceId,
+                                    audio_port_handle_t *portId);
+
+    static status_t startInput(audio_io_handle_t input,
+                               audio_session_t session);
+    static status_t stopInput(audio_io_handle_t input,
+                              audio_session_t session);
+    static void releaseInput(audio_io_handle_t input,
+                             audio_session_t session);
+    static status_t initStreamVolume(audio_stream_type_t stream,
+                                      int indexMin,
+                                      int indexMax);
+    static status_t setStreamVolumeIndex(audio_stream_type_t stream,
+                                         int index,
+                                         audio_devices_t device);
+    static status_t getStreamVolumeIndex(audio_stream_type_t stream,
+                                         int *index,
+                                         audio_devices_t device);
+
+    static uint32_t getStrategyForStream(audio_stream_type_t stream);
+    static audio_devices_t getDevicesForStream(audio_stream_type_t stream);
+
+    static audio_io_handle_t getOutputForEffect(const effect_descriptor_t *desc);
+    static status_t registerEffect(const effect_descriptor_t *desc,
+                                    audio_io_handle_t io,
+                                    uint32_t strategy,
+                                    audio_session_t session,
+                                    int id);
+    static status_t unregisterEffect(int id);
+    static status_t setEffectEnabled(int id, bool enabled);
+
+    // clear stream to output mapping cache (gStreamOutputMap)
+    // and output configuration cache (gOutputs)
+    static void clearAudioConfigCache();
+
+    static const sp<IAudioPolicyService> get_audio_policy_service();
+
+    // helpers for android.media.AudioManager.getProperty(), see description there for meaning
+    static uint32_t getPrimaryOutputSamplingRate();
+    static size_t getPrimaryOutputFrameCount();
+
+    static status_t setLowRamDevice(bool isLowRamDevice);
+
+    // Check if hw offload is possible for given format, stream type, sample rate,
+    // bit rate, duration, video and streaming or offload property is enabled
+    static bool isOffloadSupported(const audio_offload_info_t& info);
+
+    // check presence of audio flinger service.
+    // returns NO_ERROR if binding to service succeeds, DEAD_OBJECT otherwise
+    static status_t checkAudioFlinger();
+
+    /* List available audio ports and their attributes */
+    static status_t listAudioPorts(audio_port_role_t role,
+                                   audio_port_type_t type,
+                                   unsigned int *num_ports,
+                                   struct audio_port *ports,
+                                   unsigned int *generation);
+
+    /* Get attributes for a given audio port */
+    static status_t getAudioPort(struct audio_port *port);
+
+    /* Create an audio patch between several source and sink ports */
+    static status_t createAudioPatch(const struct audio_patch *patch,
+                                       audio_patch_handle_t *handle);
+
+    /* Release an audio patch */
+    static status_t releaseAudioPatch(audio_patch_handle_t handle);
+
+    /* List existing audio patches */
+    static status_t listAudioPatches(unsigned int *num_patches,
+                                      struct audio_patch *patches,
+                                      unsigned int *generation);
+    /* Set audio port configuration */
+    static status_t setAudioPortConfig(const struct audio_port_config *config);
+
+
+    static status_t acquireSoundTriggerSession(audio_session_t *session,
+                                           audio_io_handle_t *ioHandle,
+                                           audio_devices_t *device);
+    static status_t releaseSoundTriggerSession(audio_session_t session);
+
+    static audio_mode_t getPhoneState();
+
+    static status_t registerPolicyMixes(const Vector<AudioMix>& mixes, bool registration);
+
+    static status_t startAudioSource(const struct audio_port_config *source,
+                                      const audio_attributes_t *attributes,
+                                      audio_patch_handle_t *handle);
+    static status_t stopAudioSource(audio_patch_handle_t handle);
+
+    static status_t setMasterMono(bool mono);
+    static status_t getMasterMono(bool *mono);
+
+    // ----------------------------------------------------------------------------
+
+    class AudioPortCallback : public RefBase
+    {
+    public:
+
+                AudioPortCallback() {}
+        virtual ~AudioPortCallback() {}
+
+        virtual void onAudioPortListUpdate() = 0;
+        virtual void onAudioPatchListUpdate() = 0;
+        virtual void onServiceDied() = 0;
+
+    };
+
+    static status_t addAudioPortCallback(const sp<AudioPortCallback>& callback);
+    static status_t removeAudioPortCallback(const sp<AudioPortCallback>& callback);
+
+    class AudioDeviceCallback : public RefBase
+    {
+    public:
+
+                AudioDeviceCallback() {}
+        virtual ~AudioDeviceCallback() {}
+
+        virtual void onAudioDeviceUpdate(audio_io_handle_t audioIo,
+                                         audio_port_handle_t deviceId) = 0;
+    };
+
+    static status_t addAudioDeviceCallback(const sp<AudioDeviceCallback>& callback,
+                                           audio_io_handle_t audioIo);
+    static status_t removeAudioDeviceCallback(const sp<AudioDeviceCallback>& callback,
+                                              audio_io_handle_t audioIo);
+
+    static audio_port_handle_t getDeviceIdForIo(audio_io_handle_t audioIo);
+
+private:
+
+    class AudioFlingerClient: public IBinder::DeathRecipient, public BnAudioFlingerClient
+    {
+    public:
+        AudioFlingerClient() :
+            mInBuffSize(0), mInSamplingRate(0),
+            mInFormat(AUDIO_FORMAT_DEFAULT), mInChannelMask(AUDIO_CHANNEL_NONE) {
+        }
+
+        void clearIoCache();
+        status_t getInputBufferSize(uint32_t sampleRate, audio_format_t format,
+                                    audio_channel_mask_t channelMask, size_t* buffSize);
+        sp<AudioIoDescriptor> getIoDescriptor(audio_io_handle_t ioHandle);
+
+        // DeathRecipient
+        virtual void binderDied(const wp<IBinder>& who);
+
+        // IAudioFlingerClient
+
+        // indicate a change in the configuration of an output or input: keeps the cached
+        // values for output/input parameters up-to-date in client process
+        virtual void ioConfigChanged(audio_io_config_event event,
+                                     const sp<AudioIoDescriptor>& ioDesc);
+
+
+        status_t addAudioDeviceCallback(const sp<AudioDeviceCallback>& callback,
+                                               audio_io_handle_t audioIo);
+        status_t removeAudioDeviceCallback(const sp<AudioDeviceCallback>& callback,
+                                           audio_io_handle_t audioIo);
+
+        audio_port_handle_t getDeviceIdForIo(audio_io_handle_t audioIo);
+
+    private:
+        Mutex                               mLock;
+        DefaultKeyedVector<audio_io_handle_t, sp<AudioIoDescriptor> >   mIoDescriptors;
+        DefaultKeyedVector<audio_io_handle_t, Vector < sp<AudioDeviceCallback> > >
+                                                                        mAudioDeviceCallbacks;
+        // cached values for recording getInputBufferSize() queries
+        size_t                              mInBuffSize;    // zero indicates cache is invalid
+        uint32_t                            mInSamplingRate;
+        audio_format_t                      mInFormat;
+        audio_channel_mask_t                mInChannelMask;
+        sp<AudioIoDescriptor> getIoDescriptor_l(audio_io_handle_t ioHandle);
+    };
+
+    class AudioPolicyServiceClient: public IBinder::DeathRecipient,
+                                    public BnAudioPolicyServiceClient
+    {
+    public:
+        AudioPolicyServiceClient() {
+        }
+
+        int addAudioPortCallback(const sp<AudioPortCallback>& callback);
+        int removeAudioPortCallback(const sp<AudioPortCallback>& callback);
+
+        // DeathRecipient
+        virtual void binderDied(const wp<IBinder>& who);
+
+        // IAudioPolicyServiceClient
+        virtual void onAudioPortListUpdate();
+        virtual void onAudioPatchListUpdate();
+        virtual void onDynamicPolicyMixStateUpdate(String8 regId, int32_t state);
+        virtual void onRecordingConfigurationUpdate(int event, audio_session_t session,
+                        audio_source_t source, const audio_config_base_t *clientConfig,
+                        const audio_config_base_t *deviceConfig, audio_patch_handle_t patchHandle);
+
+    private:
+        Mutex                               mLock;
+        Vector <sp <AudioPortCallback> >    mAudioPortCallbacks;
+    };
+
+    static const sp<AudioFlingerClient> getAudioFlingerClient();
+    static sp<AudioIoDescriptor> getIoDescriptor(audio_io_handle_t ioHandle);
+
+    static sp<AudioFlingerClient> gAudioFlingerClient;
+    static sp<AudioPolicyServiceClient> gAudioPolicyServiceClient;
+    friend class AudioFlingerClient;
+    friend class AudioPolicyServiceClient;
+
+    static Mutex gLock;      // protects gAudioFlinger and gAudioErrorCallback,
+    static Mutex gLockAPS;   // protects gAudioPolicyService and gAudioPolicyServiceClient
+    static sp<IAudioFlinger> gAudioFlinger;
+    static audio_error_callback gAudioErrorCallback;
+    static dynamic_policy_callback gDynPolicyCallback;
+    static record_config_callback gRecordConfigCallback;
+
+    static size_t gInBuffSize;
+    // previous parameters for recording buffer size queries
+    static uint32_t gPrevInSamplingRate;
+    static audio_format_t gPrevInFormat;
+    static audio_channel_mask_t gPrevInChannelMask;
+
+    static sp<IAudioPolicyService> gAudioPolicyService;
+};
+
+};  // namespace android
+
+#endif  /*ANDROID_AUDIOSYSTEM_H_*/
diff --git a/include/media/AudioTimestamp.h b/media/libaudioclient/include/AudioTimestamp.h
similarity index 100%
rename from include/media/AudioTimestamp.h
rename to media/libaudioclient/include/AudioTimestamp.h
diff --git a/media/libaudioclient/include/AudioTrack.h b/media/libaudioclient/include/AudioTrack.h
new file mode 100644
index 0000000..0358363
--- /dev/null
+++ b/media/libaudioclient/include/AudioTrack.h
@@ -0,0 +1,1152 @@
+/*
+ * Copyright (C) 2007 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_AUDIOTRACK_H
+#define ANDROID_AUDIOTRACK_H
+
+#include <cutils/sched_policy.h>
+#include <media/AudioSystem.h>
+#include <media/AudioTimestamp.h>
+#include <media/IAudioTrack.h>
+#include <media/AudioResamplerPublic.h>
+#include <media/Modulo.h>
+#include <utils/threads.h>
+
+namespace android {
+
+// ----------------------------------------------------------------------------
+
+struct audio_track_cblk_t;
+class AudioTrackClientProxy;
+class StaticAudioTrackClientProxy;
+
+// ----------------------------------------------------------------------------
+
+class AudioTrack : public RefBase
+{
+public:
+
+    /* Events used by AudioTrack callback function (callback_t).
+     * Keep in sync with frameworks/base/media/java/android/media/AudioTrack.java NATIVE_EVENT_*.
+     */
+    enum event_type {
+        EVENT_MORE_DATA = 0,        // Request to write more data to buffer.
+                                    // This event only occurs for TRANSFER_CALLBACK.
+                                    // If this event is delivered but the callback handler
+                                    // does not want to write more data, the handler must
+                                    // ignore the event by setting frameCount to zero.
+                                    // This might occur, for example, if the application is
+                                    // waiting for source data or is at the end of stream.
+                                    //
+                                    // For data filling, it is preferred that the callback
+                                    // does not block and instead returns a short count on
+                                    // the amount of data actually delivered
+                                    // (or 0, if no data is currently available).
+        EVENT_UNDERRUN = 1,         // Buffer underrun occurred. This will not occur for
+                                    // static tracks.
+        EVENT_LOOP_END = 2,         // Sample loop end was reached; playback restarted from
+                                    // loop start if loop count was not 0 for a static track.
+        EVENT_MARKER = 3,           // Playback head is at the specified marker position
+                                    // (See setMarkerPosition()).
+        EVENT_NEW_POS = 4,          // Playback head is at a new position
+                                    // (See setPositionUpdatePeriod()).
+        EVENT_BUFFER_END = 5,       // Playback has completed for a static track.
+        EVENT_NEW_IAUDIOTRACK = 6,  // IAudioTrack was re-created, either due to re-routing and
+                                    // voluntary invalidation by mediaserver, or mediaserver crash.
+        EVENT_STREAM_END = 7,       // Sent after all the buffers queued in AF and HW are played
+                                    // back (after stop is called) for an offloaded track.
+#if 0   // FIXME not yet implemented
+        EVENT_NEW_TIMESTAMP = 8,    // Delivered periodically and when there's a significant change
+                                    // in the mapping from frame position to presentation time.
+                                    // See AudioTimestamp for the information included with event.
+#endif
+    };
+
+    /* Client should declare a Buffer and pass the address to obtainBuffer()
+     * and releaseBuffer().  See also callback_t for EVENT_MORE_DATA.
+     */
+
+    class Buffer
+    {
+    public:
+        // FIXME use m prefix
+        size_t      frameCount;   // number of sample frames corresponding to size;
+                                  // on input to obtainBuffer() it is the number of frames desired,
+                                  // on output from obtainBuffer() it is the number of available
+                                  //    [empty slots for] frames to be filled
+                                  // on input to releaseBuffer() it is currently ignored
+
+        size_t      size;         // input/output in bytes == frameCount * frameSize
+                                  // on input to obtainBuffer() it is ignored
+                                  // on output from obtainBuffer() it is the number of available
+                                  //    [empty slots for] bytes to be filled,
+                                  //    which is frameCount * frameSize
+                                  // on input to releaseBuffer() it is the number of bytes to
+                                  //    release
+                                  // FIXME This is redundant with respect to frameCount.  Consider
+                                  //    removing size and making frameCount the primary field.
+
+        union {
+            void*       raw;
+            short*      i16;      // signed 16-bit
+            int8_t*     i8;       // unsigned 8-bit, offset by 0x80
+        };                        // input to obtainBuffer(): unused, output: pointer to buffer
+    };
+
+    /* As a convenience, if a callback is supplied, a handler thread
+     * is automatically created with the appropriate priority. This thread
+     * invokes the callback when a new buffer becomes available or various conditions occur.
+     * Parameters:
+     *
+     * event:   type of event notified (see enum AudioTrack::event_type).
+     * user:    Pointer to context for use by the callback receiver.
+     * info:    Pointer to optional parameter according to event type:
+     *          - EVENT_MORE_DATA: pointer to AudioTrack::Buffer struct. The callback must not write
+     *            more bytes than indicated by 'size' field and update 'size' if fewer bytes are
+     *            written.
+     *          - EVENT_UNDERRUN: unused.
+     *          - EVENT_LOOP_END: pointer to an int indicating the number of loops remaining.
+     *          - EVENT_MARKER: pointer to const uint32_t containing the marker position in frames.
+     *          - EVENT_NEW_POS: pointer to const uint32_t containing the new position in frames.
+     *          - EVENT_BUFFER_END: unused.
+     *          - EVENT_NEW_IAUDIOTRACK: unused.
+     *          - EVENT_STREAM_END: unused.
+     *          - EVENT_NEW_TIMESTAMP: pointer to const AudioTimestamp.
+     */
+
+    typedef void (*callback_t)(int event, void* user, void *info);
+
+    /* Returns the minimum frame count required for the successful creation of
+     * an AudioTrack object.
+     * Returned status (from utils/Errors.h) can be:
+     *  - NO_ERROR: successful operation
+     *  - NO_INIT: audio server or audio hardware not initialized
+     *  - BAD_VALUE: unsupported configuration
+     * frameCount is guaranteed to be non-zero if status is NO_ERROR,
+     * and is undefined otherwise.
+     * FIXME This API assumes a route, and so should be deprecated.
+     */
+
+    static status_t getMinFrameCount(size_t* frameCount,
+                                     audio_stream_type_t streamType,
+                                     uint32_t sampleRate);
+
+    /* How data is transferred to AudioTrack
+     */
+    enum transfer_type {
+        TRANSFER_DEFAULT,   // not specified explicitly; determine from the other parameters
+        TRANSFER_CALLBACK,  // callback EVENT_MORE_DATA
+        TRANSFER_OBTAIN,    // call obtainBuffer() and releaseBuffer()
+        TRANSFER_SYNC,      // synchronous write()
+        TRANSFER_SHARED,    // shared memory
+    };
+
+    /* Constructs an uninitialized AudioTrack. No connection with
+     * AudioFlinger takes place.  Use set() after this.
+     */
+                        AudioTrack();
+
+    /* Creates an AudioTrack object and registers it with AudioFlinger.
+     * Once created, the track needs to be started before it can be used.
+     * Unspecified values are set to appropriate default values.
+     *
+     * Parameters:
+     *
+     * streamType:         Select the type of audio stream this track is attached to
+     *                     (e.g. AUDIO_STREAM_MUSIC).
+     * sampleRate:         Data source sampling rate in Hz.  Zero means to use the sink sample rate.
+     *                     A non-zero value must be specified if AUDIO_OUTPUT_FLAG_DIRECT is set.
+     *                     0 will not work with current policy implementation for direct output
+     *                     selection where an exact match is needed for sampling rate.
+     * format:             Audio format. For mixed tracks, any PCM format supported by server is OK.
+     *                     For direct and offloaded tracks, the possible format(s) depends on the
+     *                     output sink.
+     * channelMask:        Channel mask, such that audio_is_output_channel(channelMask) is true.
+     * frameCount:         Minimum size of track PCM buffer in frames. This defines the
+     *                     application's contribution to the
+     *                     latency of the track. The actual size selected by the AudioTrack could be
+     *                     larger if the requested size is not compatible with current audio HAL
+     *                     configuration.  Zero means to use a default value.
+     * flags:              See comments on audio_output_flags_t in <system/audio.h>.
+     * cbf:                Callback function. If not null, this function is called periodically
+     *                     to provide new data in TRANSFER_CALLBACK mode
+     *                     and inform of marker, position updates, etc.
+     * user:               Context for use by the callback receiver.
+     * notificationFrames: The callback function is called each time notificationFrames PCM
+     *                     frames have been consumed from track input buffer by server.
+     *                     Zero means to use a default value, which is typically:
+     *                      - fast tracks: HAL buffer size, even if track frameCount is larger
+     *                      - normal tracks: 1/2 of track frameCount
+     *                     A positive value means that many frames at initial source sample rate.
+     *                     A negative value for this parameter specifies the negative of the
+     *                     requested number of notifications (sub-buffers) in the entire buffer.
+     *                     For fast tracks, the FastMixer will process one sub-buffer at a time.
+     *                     The size of each sub-buffer is determined by the HAL.
+     *                     To get "double buffering", for example, one should pass -2.
+     *                     The minimum number of sub-buffers is 1 (expressed as -1),
+     *                     and the maximum number of sub-buffers is 8 (expressed as -8).
+     *                     Negative is only permitted for fast tracks, and if frameCount is zero.
+     *                     TODO It is ugly to overload a parameter in this way depending on
+     *                     whether it is positive, negative, or zero.  Consider splitting apart.
+     * sessionId:          Specific session ID, or zero to use default.
+     * transferType:       How data is transferred to AudioTrack.
+     * offloadInfo:        If not NULL, provides offload parameters for
+     *                     AudioSystem::getOutputForAttr().
+     * uid:                User ID of the app which initially requested this AudioTrack
+     *                     for power management tracking, or -1 for current user ID.
+     * pid:                Process ID of the app which initially requested this AudioTrack
+     *                     for power management tracking, or -1 for current process ID.
+     * pAttributes:        If not NULL, supersedes streamType for use case selection.
+     * doNotReconnect:     If set to true, AudioTrack won't automatically recreate the IAudioTrack
+                           binder to AudioFlinger.
+                           It will return an error instead.  The application will recreate
+                           the track based on offloading or different channel configuration, etc.
+     * maxRequiredSpeed:   For PCM tracks, this creates an appropriate buffer size that will allow
+     *                     maxRequiredSpeed playback. Values less than 1.0f and greater than
+     *                     AUDIO_TIMESTRETCH_SPEED_MAX will be clamped.  For non-PCM tracks
+     *                     and direct or offloaded tracks, this parameter is ignored.
+     * threadCanCallJava:  Not present in parameter list, and so is fixed at false.
+     */
+
+                        AudioTrack( audio_stream_type_t streamType,
+                                    uint32_t sampleRate,
+                                    audio_format_t format,
+                                    audio_channel_mask_t channelMask,
+                                    size_t frameCount    = 0,
+                                    audio_output_flags_t flags = AUDIO_OUTPUT_FLAG_NONE,
+                                    callback_t cbf       = NULL,
+                                    void* user           = NULL,
+                                    int32_t notificationFrames = 0,
+                                    audio_session_t sessionId  = AUDIO_SESSION_ALLOCATE,
+                                    transfer_type transferType = TRANSFER_DEFAULT,
+                                    const audio_offload_info_t *offloadInfo = NULL,
+                                    uid_t uid = AUDIO_UID_INVALID,
+                                    pid_t pid = -1,
+                                    const audio_attributes_t* pAttributes = NULL,
+                                    bool doNotReconnect = false,
+                                    float maxRequiredSpeed = 1.0f);
+
+    /* Creates an audio track and registers it with AudioFlinger.
+     * With this constructor, the track is configured for static buffer mode.
+     * Data to be rendered is passed in a shared memory buffer
+     * identified by the argument sharedBuffer, which should be non-0.
+     * If sharedBuffer is zero, this constructor is equivalent to the previous constructor
+     * but without the ability to specify a non-zero value for the frameCount parameter.
+     * The memory should be initialized to the desired data before calling start().
+     * The write() method is not supported in this case.
+     * It is recommended to pass a callback function to be notified of playback end by an
+     * EVENT_UNDERRUN event.
+     */
+
+                        AudioTrack( audio_stream_type_t streamType,
+                                    uint32_t sampleRate,
+                                    audio_format_t format,
+                                    audio_channel_mask_t channelMask,
+                                    const sp<IMemory>& sharedBuffer,
+                                    audio_output_flags_t flags = AUDIO_OUTPUT_FLAG_NONE,
+                                    callback_t cbf      = NULL,
+                                    void* user          = NULL,
+                                    int32_t notificationFrames = 0,
+                                    audio_session_t sessionId   = AUDIO_SESSION_ALLOCATE,
+                                    transfer_type transferType = TRANSFER_DEFAULT,
+                                    const audio_offload_info_t *offloadInfo = NULL,
+                                    uid_t uid = AUDIO_UID_INVALID,
+                                    pid_t pid = -1,
+                                    const audio_attributes_t* pAttributes = NULL,
+                                    bool doNotReconnect = false,
+                                    float maxRequiredSpeed = 1.0f);
+
+    /* Terminates the AudioTrack and unregisters it from AudioFlinger.
+     * Also destroys all resources associated with the AudioTrack.
+     */
+protected:
+                        virtual ~AudioTrack();
+public:
+
+    /* Initialize an AudioTrack that was created using the AudioTrack() constructor.
+     * Don't call set() more than once, or after the AudioTrack() constructors that take parameters.
+     * set() is not multi-thread safe.
+     * Returned status (from utils/Errors.h) can be:
+     *  - NO_ERROR: successful initialization
+     *  - INVALID_OPERATION: AudioTrack is already initialized
+     *  - BAD_VALUE: invalid parameter (channelMask, format, sampleRate...)
+     *  - NO_INIT: audio server or audio hardware not initialized
+     * If status is not equal to NO_ERROR, don't call any other APIs on this AudioTrack.
+     * If sharedBuffer is non-0, the frameCount parameter is ignored and
+     * replaced by the shared buffer's total allocated size in frame units.
+     *
+     * Parameters not listed in the AudioTrack constructors above:
+     *
+     * threadCanCallJava:  Whether callbacks are made from an attached thread and thus can call JNI.
+     *
+     * Internal state post condition:
+     *      (mStreamType == AUDIO_STREAM_DEFAULT) implies this AudioTrack has valid attributes
+     */
+            status_t    set(audio_stream_type_t streamType,
+                            uint32_t sampleRate,
+                            audio_format_t format,
+                            audio_channel_mask_t channelMask,
+                            size_t frameCount   = 0,
+                            audio_output_flags_t flags = AUDIO_OUTPUT_FLAG_NONE,
+                            callback_t cbf      = NULL,
+                            void* user          = NULL,
+                            int32_t notificationFrames = 0,
+                            const sp<IMemory>& sharedBuffer = 0,
+                            bool threadCanCallJava = false,
+                            audio_session_t sessionId  = AUDIO_SESSION_ALLOCATE,
+                            transfer_type transferType = TRANSFER_DEFAULT,
+                            const audio_offload_info_t *offloadInfo = NULL,
+                            uid_t uid = AUDIO_UID_INVALID,
+                            pid_t pid = -1,
+                            const audio_attributes_t* pAttributes = NULL,
+                            bool doNotReconnect = false,
+                            float maxRequiredSpeed = 1.0f);
+
+    /* Result of constructing the AudioTrack. This must be checked for successful initialization
+     * before using any AudioTrack API (except for set()), because using
+     * an uninitialized AudioTrack produces undefined results.
+     * See set() method above for possible return codes.
+     */
+            status_t    initCheck() const   { return mStatus; }
+
+    /* Returns this track's estimated latency in milliseconds.
+     * This includes the latency due to AudioTrack buffer size, AudioMixer (if any)
+     * and audio hardware driver.
+     */
+            uint32_t    latency() const     { return mLatency; }
+
+    /* Returns the number of application-level buffer underruns
+     * since the AudioTrack was created.
+     */
+            uint32_t    getUnderrunCount() const;
+
+    /* getters, see constructors and set() */
+
+            audio_stream_type_t streamType() const;
+            audio_format_t format() const   { return mFormat; }
+
+    /* Return frame size in bytes, which for linear PCM is
+     * channelCount * (bit depth per channel / 8).
+     * channelCount is determined from channelMask, and bit depth comes from format.
+     * For non-linear formats, the frame size is typically 1 byte.
+     */
+            size_t      frameSize() const   { return mFrameSize; }
+
+            uint32_t    channelCount() const { return mChannelCount; }
+            size_t      frameCount() const  { return mFrameCount; }
+
+    // TODO consider notificationFrames() if needed
+
+    /* Return effective size of audio buffer that an application writes to
+     * or a negative error if the track is uninitialized.
+     */
+            ssize_t     getBufferSizeInFrames();
+
+    /* Returns the buffer duration in microseconds at current playback rate.
+     */
+            status_t    getBufferDurationInUs(int64_t *duration);
+
+    /* Set the effective size of audio buffer that an application writes to.
+     * This is used to determine the amount of available room in the buffer,
+     * which determines when a write will block.
+     * This allows an application to raise and lower the audio latency.
+     * The requested size may be adjusted so that it is
+     * greater or equal to the absolute minimum and
+     * less than or equal to the getBufferCapacityInFrames().
+     * It may also be adjusted slightly for internal reasons.
+     *
+     * Return the final size or a negative error if the track is unitialized
+     * or does not support variable sizes.
+     */
+            ssize_t     setBufferSizeInFrames(size_t size);
+
+    /* Return the static buffer specified in constructor or set(), or 0 for streaming mode */
+            sp<IMemory> sharedBuffer() const { return mSharedBuffer; }
+
+    /* After it's created the track is not active. Call start() to
+     * make it active. If set, the callback will start being called.
+     * If the track was previously paused, volume is ramped up over the first mix buffer.
+     */
+            status_t        start();
+
+    /* Stop a track.
+     * In static buffer mode, the track is stopped immediately.
+     * In streaming mode, the callback will cease being called.  Note that obtainBuffer() still
+     * works and will fill up buffers until the pool is exhausted, and then will return WOULD_BLOCK.
+     * In streaming mode the stop does not occur immediately: any data remaining in the buffer
+     * is first drained, mixed, and output, and only then is the track marked as stopped.
+     */
+            void        stop();
+            bool        stopped() const;
+
+    /* Flush a stopped or paused track. All previously buffered data is discarded immediately.
+     * This has the effect of draining the buffers without mixing or output.
+     * Flush is intended for streaming mode, for example before switching to non-contiguous content.
+     * This function is a no-op if the track is not stopped or paused, or uses a static buffer.
+     */
+            void        flush();
+
+    /* Pause a track. After pause, the callback will cease being called and
+     * obtainBuffer returns WOULD_BLOCK. Note that obtainBuffer() still works
+     * and will fill up buffers until the pool is exhausted.
+     * Volume is ramped down over the next mix buffer following the pause request,
+     * and then the track is marked as paused.  It can be resumed with ramp up by start().
+     */
+            void        pause();
+
+    /* Set volume for this track, mostly used for games' sound effects
+     * left and right volumes. Levels must be >= 0.0 and <= 1.0.
+     * This is the older API.  New applications should use setVolume(float) when possible.
+     */
+            status_t    setVolume(float left, float right);
+
+    /* Set volume for all channels.  This is the preferred API for new applications,
+     * especially for multi-channel content.
+     */
+            status_t    setVolume(float volume);
+
+    /* Set the send level for this track. An auxiliary effect should be attached
+     * to the track with attachEffect(). Level must be >= 0.0 and <= 1.0.
+     */
+            status_t    setAuxEffectSendLevel(float level);
+            void        getAuxEffectSendLevel(float* level) const;
+
+    /* Set source sample rate for this track in Hz, mostly used for games' sound effects.
+     * Zero is not permitted.
+     */
+            status_t    setSampleRate(uint32_t sampleRate);
+
+    /* Return current source sample rate in Hz.
+     * If specified as zero in constructor or set(), this will be the sink sample rate.
+     */
+            uint32_t    getSampleRate() const;
+
+    /* Return the original source sample rate in Hz. This corresponds to the sample rate
+     * if playback rate had normal speed and pitch.
+     */
+            uint32_t    getOriginalSampleRate() const;
+
+    /* Set source playback rate for timestretch
+     * 1.0 is normal speed: < 1.0 is slower, > 1.0 is faster
+     * 1.0 is normal pitch: < 1.0 is lower pitch, > 1.0 is higher pitch
+     *
+     * AUDIO_TIMESTRETCH_SPEED_MIN <= speed <= AUDIO_TIMESTRETCH_SPEED_MAX
+     * AUDIO_TIMESTRETCH_PITCH_MIN <= pitch <= AUDIO_TIMESTRETCH_PITCH_MAX
+     *
+     * Speed increases the playback rate of media, but does not alter pitch.
+     * Pitch increases the "tonal frequency" of media, but does not affect the playback rate.
+     */
+            status_t    setPlaybackRate(const AudioPlaybackRate &playbackRate);
+
+    /* Return current playback rate */
+            const AudioPlaybackRate& getPlaybackRate() const;
+
+    /* Enables looping and sets the start and end points of looping.
+     * Only supported for static buffer mode.
+     *
+     * Parameters:
+     *
+     * loopStart:   loop start in frames relative to start of buffer.
+     * loopEnd:     loop end in frames relative to start of buffer.
+     * loopCount:   number of loops to execute. Calling setLoop() with loopCount == 0 cancels any
+     *              pending or active loop. loopCount == -1 means infinite looping.
+     *
+     * For proper operation the following condition must be respected:
+     *      loopCount != 0 implies 0 <= loopStart < loopEnd <= frameCount().
+     *
+     * If the loop period (loopEnd - loopStart) is too small for the implementation to support,
+     * setLoop() will return BAD_VALUE.  loopCount must be >= -1.
+     *
+     */
+            status_t    setLoop(uint32_t loopStart, uint32_t loopEnd, int loopCount);
+
+    /* Sets marker position. When playback reaches the number of frames specified, a callback with
+     * event type EVENT_MARKER is called. Calling setMarkerPosition with marker == 0 cancels marker
+     * notification callback.  To set a marker at a position which would compute as 0,
+     * a workaround is to set the marker at a nearby position such as ~0 or 1.
+     * If the AudioTrack has been opened with no callback function associated, the operation will
+     * fail.
+     *
+     * Parameters:
+     *
+     * marker:   marker position expressed in wrapping (overflow) frame units,
+     *           like the return value of getPosition().
+     *
+     * Returned status (from utils/Errors.h) can be:
+     *  - NO_ERROR: successful operation
+     *  - INVALID_OPERATION: the AudioTrack has no callback installed.
+     */
+            status_t    setMarkerPosition(uint32_t marker);
+            status_t    getMarkerPosition(uint32_t *marker) const;
+
+    /* Sets position update period. Every time the number of frames specified has been played,
+     * a callback with event type EVENT_NEW_POS is called.
+     * Calling setPositionUpdatePeriod with updatePeriod == 0 cancels new position notification
+     * callback.
+     * If the AudioTrack has been opened with no callback function associated, the operation will
+     * fail.
+     * Extremely small values may be rounded up to a value the implementation can support.
+     *
+     * Parameters:
+     *
+     * updatePeriod:  position update notification period expressed in frames.
+     *
+     * Returned status (from utils/Errors.h) can be:
+     *  - NO_ERROR: successful operation
+     *  - INVALID_OPERATION: the AudioTrack has no callback installed.
+     */
+            status_t    setPositionUpdatePeriod(uint32_t updatePeriod);
+            status_t    getPositionUpdatePeriod(uint32_t *updatePeriod) const;
+
+    /* Sets playback head position.
+     * Only supported for static buffer mode.
+     *
+     * Parameters:
+     *
+     * position:  New playback head position in frames relative to start of buffer.
+     *            0 <= position <= frameCount().  Note that end of buffer is permitted,
+     *            but will result in an immediate underrun if started.
+     *
+     * Returned status (from utils/Errors.h) can be:
+     *  - NO_ERROR: successful operation
+     *  - INVALID_OPERATION: the AudioTrack is not stopped or paused, or is streaming mode.
+     *  - BAD_VALUE: The specified position is beyond the number of frames present in AudioTrack
+     *               buffer
+     */
+            status_t    setPosition(uint32_t position);
+
+    /* Return the total number of frames played since playback start.
+     * The counter will wrap (overflow) periodically, e.g. every ~27 hours at 44.1 kHz.
+     * It is reset to zero by flush(), reload(), and stop().
+     *
+     * Parameters:
+     *
+     *  position:  Address where to return play head position.
+     *
+     * Returned status (from utils/Errors.h) can be:
+     *  - NO_ERROR: successful operation
+     *  - BAD_VALUE:  position is NULL
+     */
+            status_t    getPosition(uint32_t *position);
+
+    /* For static buffer mode only, this returns the current playback position in frames
+     * relative to start of buffer.  It is analogous to the position units used by
+     * setLoop() and setPosition().  After underrun, the position will be at end of buffer.
+     */
+            status_t    getBufferPosition(uint32_t *position);
+
+    /* Forces AudioTrack buffer full condition. When playing a static buffer, this method avoids
+     * rewriting the buffer before restarting playback after a stop.
+     * This method must be called with the AudioTrack in paused or stopped state.
+     * Not allowed in streaming mode.
+     *
+     * Returned status (from utils/Errors.h) can be:
+     *  - NO_ERROR: successful operation
+     *  - INVALID_OPERATION: the AudioTrack is not stopped or paused, or is streaming mode.
+     */
+            status_t    reload();
+
+    /* Returns a handle on the audio output used by this AudioTrack.
+     *
+     * Parameters:
+     *  none.
+     *
+     * Returned value:
+     *  handle on audio hardware output, or AUDIO_IO_HANDLE_NONE if the
+     *  track needed to be re-created but that failed
+     */
+private:
+            audio_io_handle_t    getOutput() const;
+public:
+
+    /* Selects the audio device to use for output of this AudioTrack. A value of
+     * AUDIO_PORT_HANDLE_NONE indicates default (AudioPolicyManager) routing.
+     *
+     * Parameters:
+     *  The device ID of the selected device (as returned by the AudioDevicesManager API).
+     *
+     * Returned value:
+     *  - NO_ERROR: successful operation
+     *    TODO: what else can happen here?
+     */
+            status_t    setOutputDevice(audio_port_handle_t deviceId);
+
+    /* Returns the ID of the audio device selected for this AudioTrack.
+     * A value of AUDIO_PORT_HANDLE_NONE indicates default (AudioPolicyManager) routing.
+     *
+     * Parameters:
+     *  none.
+     */
+     audio_port_handle_t getOutputDevice();
+
+     /* Returns the ID of the audio device actually used by the output to which this AudioTrack is
+      * attached.
+      * A value of AUDIO_PORT_HANDLE_NONE indicates the audio track is not attached to any output.
+      *
+      * Parameters:
+      *  none.
+      */
+     audio_port_handle_t getRoutedDeviceId();
+
+    /* Returns the unique session ID associated with this track.
+     *
+     * Parameters:
+     *  none.
+     *
+     * Returned value:
+     *  AudioTrack session ID.
+     */
+            audio_session_t getSessionId() const { return mSessionId; }
+
+    /* Attach track auxiliary output to specified effect. Use effectId = 0
+     * to detach track from effect.
+     *
+     * Parameters:
+     *
+     * effectId:  effectId obtained from AudioEffect::id().
+     *
+     * Returned status (from utils/Errors.h) can be:
+     *  - NO_ERROR: successful operation
+     *  - INVALID_OPERATION: the effect is not an auxiliary effect.
+     *  - BAD_VALUE: The specified effect ID is invalid
+     */
+            status_t    attachAuxEffect(int effectId);
+
+    /* Public API for TRANSFER_OBTAIN mode.
+     * Obtains a buffer of up to "audioBuffer->frameCount" empty slots for frames.
+     * After filling these slots with data, the caller should release them with releaseBuffer().
+     * If the track buffer is not full, obtainBuffer() returns as many contiguous
+     * [empty slots for] frames as are available immediately.
+     *
+     * If nonContig is non-NULL, it is an output parameter that will be set to the number of
+     * additional non-contiguous frames that are predicted to be available immediately,
+     * if the client were to release the first frames and then call obtainBuffer() again.
+     * This value is only a prediction, and needs to be confirmed.
+     * It will be set to zero for an error return.
+     *
+     * If the track buffer is full and track is stopped, obtainBuffer() returns WOULD_BLOCK
+     * regardless of the value of waitCount.
+     * If the track buffer is full and track is not stopped, obtainBuffer() blocks with a
+     * maximum timeout based on waitCount; see chart below.
+     * Buffers will be returned until the pool
+     * is exhausted, at which point obtainBuffer() will either block
+     * or return WOULD_BLOCK depending on the value of the "waitCount"
+     * parameter.
+     *
+     * Interpretation of waitCount:
+     *  +n  limits wait time to n * WAIT_PERIOD_MS,
+     *  -1  causes an (almost) infinite wait time,
+     *   0  non-blocking.
+     *
+     * Buffer fields
+     * On entry:
+     *  frameCount  number of [empty slots for] frames requested
+     *  size        ignored
+     *  raw         ignored
+     * After error return:
+     *  frameCount  0
+     *  size        0
+     *  raw         undefined
+     * After successful return:
+     *  frameCount  actual number of [empty slots for] frames available, <= number requested
+     *  size        actual number of bytes available
+     *  raw         pointer to the buffer
+     */
+            status_t    obtainBuffer(Buffer* audioBuffer, int32_t waitCount,
+                                size_t *nonContig = NULL);
+
+private:
+    /* If nonContig is non-NULL, it is an output parameter that will be set to the number of
+     * additional non-contiguous frames that are predicted to be available immediately,
+     * if the client were to release the first frames and then call obtainBuffer() again.
+     * This value is only a prediction, and needs to be confirmed.
+     * It will be set to zero for an error return.
+     * FIXME We could pass an array of Buffers instead of only one Buffer to obtainBuffer(),
+     * in case the requested amount of frames is in two or more non-contiguous regions.
+     * FIXME requested and elapsed are both relative times.  Consider changing to absolute time.
+     */
+            status_t    obtainBuffer(Buffer* audioBuffer, const struct timespec *requested,
+                                     struct timespec *elapsed = NULL, size_t *nonContig = NULL);
+public:
+
+    /* Public API for TRANSFER_OBTAIN mode.
+     * Release a filled buffer of frames for AudioFlinger to process.
+     *
+     * Buffer fields:
+     *  frameCount  currently ignored but recommend to set to actual number of frames filled
+     *  size        actual number of bytes filled, must be multiple of frameSize
+     *  raw         ignored
+     */
+            void        releaseBuffer(const Buffer* audioBuffer);
+
+    /* As a convenience we provide a write() interface to the audio buffer.
+     * Input parameter 'size' is in byte units.
+     * This is implemented on top of obtainBuffer/releaseBuffer. For best
+     * performance use callbacks. Returns actual number of bytes written >= 0,
+     * or one of the following negative status codes:
+     *      INVALID_OPERATION   AudioTrack is configured for static buffer or streaming mode
+     *      BAD_VALUE           size is invalid
+     *      WOULD_BLOCK         when obtainBuffer() returns same, or
+     *                          AudioTrack was stopped during the write
+     *      DEAD_OBJECT         when AudioFlinger dies or the output device changes and
+     *                          the track cannot be automatically restored.
+     *                          The application needs to recreate the AudioTrack
+     *                          because the audio device changed or AudioFlinger died.
+     *                          This typically occurs for direct or offload tracks
+     *                          or if mDoNotReconnect is true.
+     *      or any other error code returned by IAudioTrack::start() or restoreTrack_l().
+     * Default behavior is to only return when all data has been transferred. Set 'blocking' to
+     * false for the method to return immediately without waiting to try multiple times to write
+     * the full content of the buffer.
+     */
+            ssize_t     write(const void* buffer, size_t size, bool blocking = true);
+
+    /*
+     * Dumps the state of an audio track.
+     * Not a general-purpose API; intended only for use by media player service to dump its tracks.
+     */
+            status_t    dump(int fd, const Vector<String16>& args) const;
+
+    /*
+     * Return the total number of frames which AudioFlinger desired but were unavailable,
+     * and thus which resulted in an underrun.  Reset to zero by stop().
+     */
+            uint32_t    getUnderrunFrames() const;
+
+    /* Get the flags */
+            audio_output_flags_t getFlags() const { AutoMutex _l(mLock); return mFlags; }
+
+    /* Set parameters - only possible when using direct output */
+            status_t    setParameters(const String8& keyValuePairs);
+
+    /* Sets the volume shaper object */
+            VolumeShaper::Status applyVolumeShaper(
+                    const sp<VolumeShaper::Configuration>& configuration,
+                    const sp<VolumeShaper::Operation>& operation);
+
+    /* Gets the volume shaper state */
+            sp<VolumeShaper::State> getVolumeShaperState(int id);
+
+    /* Get parameters */
+            String8     getParameters(const String8& keys);
+
+    /* Poll for a timestamp on demand.
+     * Use if EVENT_NEW_TIMESTAMP is not delivered often enough for your needs,
+     * or if you need to get the most recent timestamp outside of the event callback handler.
+     * Caution: calling this method too often may be inefficient;
+     * if you need a high resolution mapping between frame position and presentation time,
+     * consider implementing that at application level, based on the low resolution timestamps.
+     * Returns NO_ERROR    if timestamp is valid.
+     *         WOULD_BLOCK if called in STOPPED or FLUSHED state, or if called immediately after
+     *                     start/ACTIVE, when the number of frames consumed is less than the
+     *                     overall hardware latency to physical output. In WOULD_BLOCK cases,
+     *                     one might poll again, or use getPosition(), or use 0 position and
+     *                     current time for the timestamp.
+     *         DEAD_OBJECT if AudioFlinger dies or the output device changes and
+     *                     the track cannot be automatically restored.
+     *                     The application needs to recreate the AudioTrack
+     *                     because the audio device changed or AudioFlinger died.
+     *                     This typically occurs for direct or offload tracks
+     *                     or if mDoNotReconnect is true.
+     *         INVALID_OPERATION  wrong state, or some other error.
+     *
+     * The timestamp parameter is undefined on return, if status is not NO_ERROR.
+     */
+            status_t    getTimestamp(AudioTimestamp& timestamp);
+private:
+            status_t    getTimestamp_l(AudioTimestamp& timestamp);
+public:
+
+    /* Return the extended timestamp, with additional timebase info and improved drain behavior.
+     *
+     * This is similar to the AudioTrack.java API:
+     * getTimestamp(@NonNull AudioTimestamp timestamp, @AudioTimestamp.Timebase int timebase)
+     *
+     * Some differences between this method and the getTimestamp(AudioTimestamp& timestamp) method
+     *
+     *   1. stop() by itself does not reset the frame position.
+     *      A following start() resets the frame position to 0.
+     *   2. flush() by itself does not reset the frame position.
+     *      The frame position advances by the number of frames flushed,
+     *      when the first frame after flush reaches the audio sink.
+     *   3. BOOTTIME clock offsets are provided to help synchronize with
+     *      non-audio streams, e.g. sensor data.
+     *   4. Position is returned with 64 bits of resolution.
+     *
+     * Parameters:
+     *  timestamp: A pointer to the caller allocated ExtendedTimestamp.
+     *
+     * Returns NO_ERROR    on success; timestamp is filled with valid data.
+     *         BAD_VALUE   if timestamp is NULL.
+     *         WOULD_BLOCK if called immediately after start() when the number
+     *                     of frames consumed is less than the
+     *                     overall hardware latency to physical output. In WOULD_BLOCK cases,
+     *                     one might poll again, or use getPosition(), or use 0 position and
+     *                     current time for the timestamp.
+     *                     If WOULD_BLOCK is returned, the timestamp is still
+     *                     modified with the LOCATION_CLIENT portion filled.
+     *         DEAD_OBJECT if AudioFlinger dies or the output device changes and
+     *                     the track cannot be automatically restored.
+     *                     The application needs to recreate the AudioTrack
+     *                     because the audio device changed or AudioFlinger died.
+     *                     This typically occurs for direct or offloaded tracks
+     *                     or if mDoNotReconnect is true.
+     *         INVALID_OPERATION  if called on a offloaded or direct track.
+     *                     Use getTimestamp(AudioTimestamp& timestamp) instead.
+     */
+            status_t getTimestamp(ExtendedTimestamp *timestamp);
+private:
+            status_t getTimestamp_l(ExtendedTimestamp *timestamp);
+public:
+
+    /* Add an AudioDeviceCallback. The caller will be notified when the audio device to which this
+     * AudioTrack is routed is updated.
+     * Replaces any previously installed callback.
+     * Parameters:
+     *  callback:  The callback interface
+     * Returns NO_ERROR if successful.
+     *         INVALID_OPERATION if the same callback is already installed.
+     *         NO_INIT or PREMISSION_DENIED if AudioFlinger service is not reachable
+     *         BAD_VALUE if the callback is NULL
+     */
+            status_t addAudioDeviceCallback(const sp<AudioSystem::AudioDeviceCallback>& callback);
+
+    /* remove an AudioDeviceCallback.
+     * Parameters:
+     *  callback:  The callback interface
+     * Returns NO_ERROR if successful.
+     *         INVALID_OPERATION if the callback is not installed
+     *         BAD_VALUE if the callback is NULL
+     */
+            status_t removeAudioDeviceCallback(
+                    const sp<AudioSystem::AudioDeviceCallback>& callback);
+
+    /* Obtain the pending duration in milliseconds for playback of pure PCM
+     * (mixable without embedded timing) data remaining in AudioTrack.
+     *
+     * This is used to estimate the drain time for the client-server buffer
+     * so the choice of ExtendedTimestamp::LOCATION_SERVER is default.
+     * One may optionally request to find the duration to play through the HAL
+     * by specifying a location ExtendedTimestamp::LOCATION_KERNEL; however,
+     * INVALID_OPERATION may be returned if the kernel location is unavailable.
+     *
+     * Returns NO_ERROR  if successful.
+     *         INVALID_OPERATION if ExtendedTimestamp::LOCATION_KERNEL cannot be obtained
+     *                   or the AudioTrack does not contain pure PCM data.
+     *         BAD_VALUE if msec is nullptr or location is invalid.
+     */
+            status_t pendingDuration(int32_t *msec,
+                    ExtendedTimestamp::Location location = ExtendedTimestamp::LOCATION_SERVER);
+
+    /* hasStarted() is used to determine if audio is now audible at the device after
+     * a start() command. The underlying implementation checks a nonzero timestamp position
+     * or increment for the audible assumption.
+     *
+     * hasStarted() returns true if the track has been started() and audio is audible
+     * and no subsequent pause() or flush() has been called.  Immediately after pause() or
+     * flush() hasStarted() will return false.
+     *
+     * If stop() has been called, hasStarted() will return true if audio is still being
+     * delivered or has finished delivery (even if no audio was written) for both offloaded
+     * and normal tracks. This property removes a race condition in checking hasStarted()
+     * for very short clips, where stop() must be called to finish drain.
+     *
+     * In all cases, hasStarted() may turn false briefly after a subsequent start() is called
+     * until audio becomes audible again.
+     */
+            bool hasStarted(); // not const
+
+protected:
+    /* copying audio tracks is not allowed */
+                        AudioTrack(const AudioTrack& other);
+            AudioTrack& operator = (const AudioTrack& other);
+
+    /* a small internal class to handle the callback */
+    class AudioTrackThread : public Thread
+    {
+    public:
+        AudioTrackThread(AudioTrack& receiver, bool bCanCallJava = false);
+
+        // Do not call Thread::requestExitAndWait() without first calling requestExit().
+        // Thread::requestExitAndWait() is not virtual, and the implementation doesn't do enough.
+        virtual void        requestExit();
+
+                void        pause();    // suspend thread from execution at next loop boundary
+                void        resume();   // allow thread to execute, if not requested to exit
+                void        wake();     // wake to handle changed notification conditions.
+
+    private:
+                void        pauseInternal(nsecs_t ns = 0LL);
+                                        // like pause(), but only used internally within thread
+
+        friend class AudioTrack;
+        virtual bool        threadLoop();
+        AudioTrack&         mReceiver;
+        virtual ~AudioTrackThread();
+        Mutex               mMyLock;    // Thread::mLock is private
+        Condition           mMyCond;    // Thread::mThreadExitedCondition is private
+        bool                mPaused;    // whether thread is requested to pause at next loop entry
+        bool                mPausedInt; // whether thread internally requests pause
+        nsecs_t             mPausedNs;  // if mPausedInt then associated timeout, otherwise ignored
+        bool                mIgnoreNextPausedInt;   // skip any internal pause and go immediately
+                                        // to processAudioBuffer() as state may have changed
+                                        // since pause time calculated.
+    };
+
+            // body of AudioTrackThread::threadLoop()
+            // returns the maximum amount of time before we would like to run again, where:
+            //      0           immediately
+            //      > 0         no later than this many nanoseconds from now
+            //      NS_WHENEVER still active but no particular deadline
+            //      NS_INACTIVE inactive so don't run again until re-started
+            //      NS_NEVER    never again
+            static const nsecs_t NS_WHENEVER = -1, NS_INACTIVE = -2, NS_NEVER = -3;
+            nsecs_t processAudioBuffer();
+
+            // caller must hold lock on mLock for all _l methods
+
+            status_t createTrack_l();
+
+            // can only be called when mState != STATE_ACTIVE
+            void flush_l();
+
+            void setLoop_l(uint32_t loopStart, uint32_t loopEnd, int loopCount);
+
+            // FIXME enum is faster than strcmp() for parameter 'from'
+            status_t restoreTrack_l(const char *from);
+
+            uint32_t    getUnderrunCount_l() const;
+
+            bool     isOffloaded() const;
+            bool     isDirect() const;
+            bool     isOffloadedOrDirect() const;
+
+            bool     isOffloaded_l() const
+                { return (mFlags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0; }
+
+            bool     isOffloadedOrDirect_l() const
+                { return (mFlags & (AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD|
+                                                AUDIO_OUTPUT_FLAG_DIRECT)) != 0; }
+
+            bool     isDirect_l() const
+                { return (mFlags & AUDIO_OUTPUT_FLAG_DIRECT) != 0; }
+
+            // pure pcm data is mixable (which excludes HW_AV_SYNC, with embedded timing)
+            bool     isPurePcmData_l() const
+                { return audio_is_linear_pcm(mFormat)
+                        && (mAttributes.flags & AUDIO_FLAG_HW_AV_SYNC) == 0; }
+
+            // increment mPosition by the delta of mServer, and return new value of mPosition
+            Modulo<uint32_t> updateAndGetPosition_l();
+
+            // check sample rate and speed is compatible with AudioTrack
+            bool     isSampleRateSpeedAllowed_l(uint32_t sampleRate, float speed) const;
+
+            void     restartIfDisabled();
+
+    // Next 4 fields may be changed if IAudioTrack is re-created, but always != 0
+    sp<IAudioTrack>         mAudioTrack;
+    sp<IMemory>             mCblkMemory;
+    audio_track_cblk_t*     mCblk;                  // re-load after mLock.unlock()
+    audio_io_handle_t       mOutput;                // returned by AudioSystem::getOutput()
+
+    sp<AudioTrackThread>    mAudioTrackThread;
+    bool                    mThreadCanCallJava;
+
+    float                   mVolume[2];
+    float                   mSendLevel;
+    mutable uint32_t        mSampleRate;            // mutable because getSampleRate() can update it
+    uint32_t                mOriginalSampleRate;
+    AudioPlaybackRate       mPlaybackRate;
+    float                   mMaxRequiredSpeed;      // use PCM buffer size to allow this speed
+
+    // Corresponds to current IAudioTrack, value is reported back by AudioFlinger to the client.
+    // This allocated buffer size is maintained by the proxy.
+    size_t                  mFrameCount;            // maximum size of buffer
+
+    size_t                  mReqFrameCount;         // frame count to request the first or next time
+                                                    // a new IAudioTrack is needed, non-decreasing
+
+    // The following AudioFlinger server-side values are cached in createAudioTrack_l().
+    // These values can be used for informational purposes until the track is invalidated,
+    // whereupon restoreTrack_l() calls createTrack_l() to update the values.
+    uint32_t                mAfLatency;             // AudioFlinger latency in ms
+    size_t                  mAfFrameCount;          // AudioFlinger frame count
+    uint32_t                mAfSampleRate;          // AudioFlinger sample rate
+
+    // constant after constructor or set()
+    audio_format_t          mFormat;                // as requested by client, not forced to 16-bit
+    audio_stream_type_t     mStreamType;            // mStreamType == AUDIO_STREAM_DEFAULT implies
+                                                    // this AudioTrack has valid attributes
+    uint32_t                mChannelCount;
+    audio_channel_mask_t    mChannelMask;
+    sp<IMemory>             mSharedBuffer;
+    transfer_type           mTransfer;
+    audio_offload_info_t    mOffloadInfoCopy;
+    const audio_offload_info_t* mOffloadInfo;
+    audio_attributes_t      mAttributes;
+
+    size_t                  mFrameSize;             // frame size in bytes
+
+    status_t                mStatus;
+
+    // can change dynamically when IAudioTrack invalidated
+    uint32_t                mLatency;               // in ms
+
+    // Indicates the current track state.  Protected by mLock.
+    enum State {
+        STATE_ACTIVE,
+        STATE_STOPPED,
+        STATE_PAUSED,
+        STATE_PAUSED_STOPPING,
+        STATE_FLUSHED,
+        STATE_STOPPING,
+    }                       mState;
+
+    // for client callback handler
+    callback_t              mCbf;                   // callback handler for events, or NULL
+    void*                   mUserData;
+
+    // for notification APIs
+
+    // next 2 fields are const after constructor or set()
+    uint32_t                mNotificationFramesReq; // requested number of frames between each
+                                                    // notification callback,
+                                                    // at initial source sample rate
+    uint32_t                mNotificationsPerBufferReq;
+                                                    // requested number of notifications per buffer,
+                                                    // currently only used for fast tracks with
+                                                    // default track buffer size
+
+    uint32_t                mNotificationFramesAct; // actual number of frames between each
+                                                    // notification callback,
+                                                    // at initial source sample rate
+    bool                    mRefreshRemaining;      // processAudioBuffer() should refresh
+                                                    // mRemainingFrames and mRetryOnPartialBuffer
+
+                                                    // used for static track cbf and restoration
+    int32_t                 mLoopCount;             // last setLoop loopCount; zero means disabled
+    uint32_t                mLoopStart;             // last setLoop loopStart
+    uint32_t                mLoopEnd;               // last setLoop loopEnd
+    int32_t                 mLoopCountNotified;     // the last loopCount notified by callback.
+                                                    // mLoopCountNotified counts down, matching
+                                                    // the remaining loop count for static track
+                                                    // playback.
+
+    // These are private to processAudioBuffer(), and are not protected by a lock
+    uint32_t                mRemainingFrames;       // number of frames to request in obtainBuffer()
+    bool                    mRetryOnPartialBuffer;  // sleep and retry after partial obtainBuffer()
+    uint32_t                mObservedSequence;      // last observed value of mSequence
+
+    Modulo<uint32_t>        mMarkerPosition;        // in wrapping (overflow) frame units
+    bool                    mMarkerReached;
+    Modulo<uint32_t>        mNewPosition;           // in frames
+    uint32_t                mUpdatePeriod;          // in frames, zero means no EVENT_NEW_POS
+
+    Modulo<uint32_t>        mServer;                // in frames, last known mProxy->getPosition()
+                                                    // which is count of frames consumed by server,
+                                                    // reset by new IAudioTrack,
+                                                    // whether it is reset by stop() is TBD
+    Modulo<uint32_t>        mPosition;              // in frames, like mServer except continues
+                                                    // monotonically after new IAudioTrack,
+                                                    // and could be easily widened to uint64_t
+    Modulo<uint32_t>        mReleased;              // count of frames released to server
+                                                    // but not necessarily consumed by server,
+                                                    // reset by stop() but continues monotonically
+                                                    // after new IAudioTrack to restore mPosition,
+                                                    // and could be easily widened to uint64_t
+    int64_t                 mStartUs;               // the start time after flush or stop.
+                                                    // only used for offloaded and direct tracks.
+    ExtendedTimestamp       mStartEts;              // Extended timestamp at start for normal
+                                                    // AudioTracks.
+    AudioTimestamp          mStartTs;               // Timestamp at start for offloaded or direct
+                                                    // AudioTracks.
+
+    bool                    mPreviousTimestampValid;// true if mPreviousTimestamp is valid
+    bool                    mTimestampStartupGlitchReported; // reduce log spam
+    bool                    mRetrogradeMotionReported; // reduce log spam
+    AudioTimestamp          mPreviousTimestamp;     // used to detect retrograde motion
+    ExtendedTimestamp::Location mPreviousLocation;  // location used for previous timestamp
+
+    uint32_t                mUnderrunCountOffset;   // updated when restoring tracks
+
+    int64_t                 mFramesWritten;         // total frames written. reset to zero after
+                                                    // the start() following stop(). It is not
+                                                    // changed after restoring the track or
+                                                    // after flush.
+    int64_t                 mFramesWrittenServerOffset; // An offset to server frames due to
+                                                    // restoring AudioTrack, or stop/start.
+                                                    // This offset is also used for static tracks.
+    int64_t                 mFramesWrittenAtRestore; // Frames written at restore point (or frames
+                                                    // delivered for static tracks).
+                                                    // -1 indicates no previous restore point.
+
+    audio_output_flags_t    mFlags;                 // same as mOrigFlags, except for bits that may
+                                                    // be denied by client or server, such as
+                                                    // AUDIO_OUTPUT_FLAG_FAST.  mLock must be
+                                                    // held to read or write those bits reliably.
+    audio_output_flags_t    mOrigFlags;             // as specified in constructor or set(), const
+
+    bool                    mDoNotReconnect;
+
+    audio_session_t         mSessionId;
+    int                     mAuxEffectId;
+
+    mutable Mutex           mLock;
+
+    int                     mPreviousPriority;          // before start()
+    SchedPolicy             mPreviousSchedulingGroup;
+    bool                    mAwaitBoost;    // thread should wait for priority boost before running
+
+    // The proxy should only be referenced while a lock is held because the proxy isn't
+    // multi-thread safe, especially the SingleStateQueue part of the proxy.
+    // An exception is that a blocking ClientProxy::obtainBuffer() may be called without a lock,
+    // provided that the caller also holds an extra reference to the proxy and shared memory to keep
+    // them around in case they are replaced during the obtainBuffer().
+    sp<StaticAudioTrackClientProxy> mStaticProxy;   // for type safety only
+    sp<AudioTrackClientProxy>       mProxy;         // primary owner of the memory
+
+    bool                    mInUnderrun;            // whether track is currently in underrun state
+    uint32_t                mPausedPosition;
+
+    // For Device Selection API
+    //  a value of AUDIO_PORT_HANDLE_NONE indicated default (AudioPolicyManager) routing.
+    audio_port_handle_t     mSelectedDeviceId;
+
+    sp<VolumeHandler>       mVolumeHandler;
+
+private:
+    class DeathNotifier : public IBinder::DeathRecipient {
+    public:
+        DeathNotifier(AudioTrack* audioTrack) : mAudioTrack(audioTrack) { }
+    protected:
+        virtual void        binderDied(const wp<IBinder>& who);
+    private:
+        const wp<AudioTrack> mAudioTrack;
+    };
+
+    sp<DeathNotifier>       mDeathNotifier;
+    uint32_t                mSequence;              // incremented for each new IAudioTrack attempt
+    uid_t                   mClientUid;
+    pid_t                   mClientPid;
+
+    sp<AudioSystem::AudioDeviceCallback> mDeviceCallback;
+    audio_port_handle_t     mPortId;  // unique ID allocated by audio policy
+};
+
+}; // namespace android
+
+#endif // ANDROID_AUDIOTRACK_H
diff --git a/media/libaudioclient/include/IAudioFlinger.h b/media/libaudioclient/include/IAudioFlinger.h
new file mode 100644
index 0000000..8c5e61a
--- /dev/null
+++ b/media/libaudioclient/include/IAudioFlinger.h
@@ -0,0 +1,268 @@
+/*
+ * Copyright (C) 2007 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_IAUDIOFLINGER_H
+#define ANDROID_IAUDIOFLINGER_H
+
+#include <stdint.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include <utils/RefBase.h>
+#include <utils/Errors.h>
+#include <binder/IInterface.h>
+#include <media/IAudioTrack.h>
+#include <media/IAudioRecord.h>
+#include <media/IAudioFlingerClient.h>
+#include <system/audio.h>
+#include <system/audio_effect.h>
+#include <system/audio_policy.h>
+#include <media/IEffect.h>
+#include <media/IEffectClient.h>
+#include <utils/String8.h>
+
+namespace android {
+
+// ----------------------------------------------------------------------------
+
+class IAudioFlinger : public IInterface
+{
+public:
+    DECLARE_META_INTERFACE(AudioFlinger);
+
+
+    // invariant on exit for all APIs that return an sp<>:
+    //   (return value != 0) == (*status == NO_ERROR)
+
+    /* create an audio track and registers it with AudioFlinger.
+     * return null if the track cannot be created.
+     */
+    virtual sp<IAudioTrack> createTrack(
+                                audio_stream_type_t streamType,
+                                uint32_t sampleRate,
+                                audio_format_t format,
+                                audio_channel_mask_t channelMask,
+                                size_t *pFrameCount,
+                                audio_output_flags_t *flags,
+                                const sp<IMemory>& sharedBuffer,
+                                // On successful return, AudioFlinger takes over the handle
+                                // reference and will release it when the track is destroyed.
+                                // However on failure, the client is responsible for release.
+                                audio_io_handle_t output,
+                                pid_t pid,
+                                pid_t tid,  // -1 means unused, otherwise must be valid non-0
+                                audio_session_t *sessionId,
+                                int clientUid,
+                                status_t *status,
+                                audio_port_handle_t portId) = 0;
+
+    virtual sp<IAudioRecord> openRecord(
+                                // On successful return, AudioFlinger takes over the handle
+                                // reference and will release it when the track is destroyed.
+                                // However on failure, the client is responsible for release.
+                                audio_io_handle_t input,
+                                uint32_t sampleRate,
+                                audio_format_t format,
+                                audio_channel_mask_t channelMask,
+                                const String16& callingPackage,
+                                size_t *pFrameCount,
+                                audio_input_flags_t *flags,
+                                pid_t pid,
+                                pid_t tid,  // -1 means unused, otherwise must be valid non-0
+                                int clientUid,
+                                audio_session_t *sessionId,
+                                size_t *notificationFrames,
+                                sp<IMemory>& cblk,
+                                sp<IMemory>& buffers,   // return value 0 means it follows cblk
+                                status_t *status,
+                                audio_port_handle_t portId) = 0;
+
+    // FIXME Surprisingly, format/latency don't work for input handles
+
+    /* query the audio hardware state. This state never changes,
+     * and therefore can be cached.
+     */
+    virtual     uint32_t    sampleRate(audio_io_handle_t ioHandle) const = 0;
+
+    // reserved; formerly channelCount()
+
+    virtual     audio_format_t format(audio_io_handle_t output) const = 0;
+    virtual     size_t      frameCount(audio_io_handle_t ioHandle) const = 0;
+
+    // return estimated latency in milliseconds
+    virtual     uint32_t    latency(audio_io_handle_t output) const = 0;
+
+    /* set/get the audio hardware state. This will probably be used by
+     * the preference panel, mostly.
+     */
+    virtual     status_t    setMasterVolume(float value) = 0;
+    virtual     status_t    setMasterMute(bool muted) = 0;
+
+    virtual     float       masterVolume() const = 0;
+    virtual     bool        masterMute() const = 0;
+
+    /* set/get stream type state. This will probably be used by
+     * the preference panel, mostly.
+     */
+    virtual     status_t    setStreamVolume(audio_stream_type_t stream, float value,
+                                    audio_io_handle_t output) = 0;
+    virtual     status_t    setStreamMute(audio_stream_type_t stream, bool muted) = 0;
+
+    virtual     float       streamVolume(audio_stream_type_t stream,
+                                    audio_io_handle_t output) const = 0;
+    virtual     bool        streamMute(audio_stream_type_t stream) const = 0;
+
+    // set audio mode
+    virtual     status_t    setMode(audio_mode_t mode) = 0;
+
+    // mic mute/state
+    virtual     status_t    setMicMute(bool state) = 0;
+    virtual     bool        getMicMute() const = 0;
+
+    virtual     status_t    setParameters(audio_io_handle_t ioHandle,
+                                    const String8& keyValuePairs) = 0;
+    virtual     String8     getParameters(audio_io_handle_t ioHandle, const String8& keys)
+                                    const = 0;
+
+    // Register an object to receive audio input/output change and track notifications.
+    // For a given calling pid, AudioFlinger disregards any registrations after the first.
+    // Thus the IAudioFlingerClient must be a singleton per process.
+    virtual void registerClient(const sp<IAudioFlingerClient>& client) = 0;
+
+    // retrieve the audio recording buffer size
+    // FIXME This API assumes a route, and so should be deprecated.
+    virtual size_t getInputBufferSize(uint32_t sampleRate, audio_format_t format,
+            audio_channel_mask_t channelMask) const = 0;
+
+    virtual status_t openOutput(audio_module_handle_t module,
+                                audio_io_handle_t *output,
+                                audio_config_t *config,
+                                audio_devices_t *devices,
+                                const String8& address,
+                                uint32_t *latencyMs,
+                                audio_output_flags_t flags) = 0;
+    virtual audio_io_handle_t openDuplicateOutput(audio_io_handle_t output1,
+                                    audio_io_handle_t output2) = 0;
+    virtual status_t closeOutput(audio_io_handle_t output) = 0;
+    virtual status_t suspendOutput(audio_io_handle_t output) = 0;
+    virtual status_t restoreOutput(audio_io_handle_t output) = 0;
+
+    virtual status_t openInput(audio_module_handle_t module,
+                               audio_io_handle_t *input,
+                               audio_config_t *config,
+                               audio_devices_t *device,
+                               const String8& address,
+                               audio_source_t source,
+                               audio_input_flags_t flags) = 0;
+    virtual status_t closeInput(audio_io_handle_t input) = 0;
+
+    virtual status_t invalidateStream(audio_stream_type_t stream) = 0;
+
+    virtual status_t setVoiceVolume(float volume) = 0;
+
+    virtual status_t getRenderPosition(uint32_t *halFrames, uint32_t *dspFrames,
+                                    audio_io_handle_t output) const = 0;
+
+    virtual uint32_t getInputFramesLost(audio_io_handle_t ioHandle) const = 0;
+
+    virtual audio_unique_id_t newAudioUniqueId(audio_unique_id_use_t use) = 0;
+
+    virtual void acquireAudioSessionId(audio_session_t audioSession, pid_t pid) = 0;
+    virtual void releaseAudioSessionId(audio_session_t audioSession, pid_t pid) = 0;
+
+    virtual status_t queryNumberEffects(uint32_t *numEffects) const = 0;
+
+    virtual status_t queryEffect(uint32_t index, effect_descriptor_t *pDescriptor) const = 0;
+
+    virtual status_t getEffectDescriptor(const effect_uuid_t *pEffectUUID,
+                                        effect_descriptor_t *pDescriptor) const = 0;
+
+    virtual sp<IEffect> createEffect(
+                                    effect_descriptor_t *pDesc,
+                                    const sp<IEffectClient>& client,
+                                    int32_t priority,
+                                    // AudioFlinger doesn't take over handle reference from client
+                                    audio_io_handle_t output,
+                                    audio_session_t sessionId,
+                                    const String16& callingPackage,
+                                    pid_t pid,
+                                    status_t *status,
+                                    int *id,
+                                    int *enabled) = 0;
+
+    virtual status_t moveEffects(audio_session_t session, audio_io_handle_t srcOutput,
+                                    audio_io_handle_t dstOutput) = 0;
+
+    virtual audio_module_handle_t loadHwModule(const char *name) = 0;
+
+    // helpers for android.media.AudioManager.getProperty(), see description there for meaning
+    // FIXME move these APIs to AudioPolicy to permit a more accurate implementation
+    // that looks on primary device for a stream with fast flag, primary flag, or first one.
+    virtual uint32_t getPrimaryOutputSamplingRate() = 0;
+    virtual size_t getPrimaryOutputFrameCount() = 0;
+
+    // Intended for AudioService to inform AudioFlinger of device's low RAM attribute,
+    // and should be called at most once.  For a definition of what "low RAM" means, see
+    // android.app.ActivityManager.isLowRamDevice().
+    virtual status_t setLowRamDevice(bool isLowRamDevice) = 0;
+
+    /* List available audio ports and their attributes */
+    virtual status_t listAudioPorts(unsigned int *num_ports,
+                                    struct audio_port *ports) = 0;
+
+    /* Get attributes for a given audio port */
+    virtual status_t getAudioPort(struct audio_port *port) = 0;
+
+    /* Create an audio patch between several source and sink ports */
+    virtual status_t createAudioPatch(const struct audio_patch *patch,
+                                       audio_patch_handle_t *handle) = 0;
+
+    /* Release an audio patch */
+    virtual status_t releaseAudioPatch(audio_patch_handle_t handle) = 0;
+
+    /* List existing audio patches */
+    virtual status_t listAudioPatches(unsigned int *num_patches,
+                                      struct audio_patch *patches) = 0;
+    /* Set audio port configuration */
+    virtual status_t setAudioPortConfig(const struct audio_port_config *config) = 0;
+
+    /* Get the HW synchronization source used for an audio session */
+    virtual audio_hw_sync_t getAudioHwSyncForSession(audio_session_t sessionId) = 0;
+
+    /* Indicate JAVA services are ready (scheduling, power management ...) */
+    virtual status_t systemReady() = 0;
+
+    // Returns the number of frames per audio HAL buffer.
+    virtual size_t frameCountHAL(audio_io_handle_t ioHandle) const = 0;
+};
+
+
+// ----------------------------------------------------------------------------
+
+class BnAudioFlinger : public BnInterface<IAudioFlinger>
+{
+public:
+    virtual status_t    onTransact( uint32_t code,
+                                    const Parcel& data,
+                                    Parcel* reply,
+                                    uint32_t flags = 0);
+};
+
+// ----------------------------------------------------------------------------
+
+}; // namespace android
+
+#endif // ANDROID_IAUDIOFLINGER_H
diff --git a/include/media/IAudioFlingerClient.h b/media/libaudioclient/include/IAudioFlingerClient.h
similarity index 100%
rename from include/media/IAudioFlingerClient.h
rename to media/libaudioclient/include/IAudioFlingerClient.h
diff --git a/media/libaudioclient/include/IAudioPolicyService.h b/media/libaudioclient/include/IAudioPolicyService.h
new file mode 100644
index 0000000..d111fd2
--- /dev/null
+++ b/media/libaudioclient/include/IAudioPolicyService.h
@@ -0,0 +1,190 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_IAUDIOPOLICYSERVICE_H
+#define ANDROID_IAUDIOPOLICYSERVICE_H
+
+#include <stdint.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include <utils/RefBase.h>
+#include <utils/Errors.h>
+#include <binder/IInterface.h>
+#include <media/AudioSystem.h>
+#include <media/AudioPolicy.h>
+#include <media/IAudioPolicyServiceClient.h>
+
+#include <system/audio_policy.h>
+
+namespace android {
+
+// ----------------------------------------------------------------------------
+
+class IAudioPolicyService : public IInterface
+{
+public:
+    DECLARE_META_INTERFACE(AudioPolicyService);
+
+    //
+    // IAudioPolicyService interface (see AudioPolicyInterface for method descriptions)
+    //
+    virtual status_t setDeviceConnectionState(audio_devices_t device,
+                                              audio_policy_dev_state_t state,
+                                              const char *device_address,
+                                              const char *device_name) = 0;
+    virtual audio_policy_dev_state_t getDeviceConnectionState(audio_devices_t device,
+                                                                  const char *device_address) = 0;
+    virtual status_t handleDeviceConfigChange(audio_devices_t device,
+                                              const char *device_address,
+                                              const char *device_name) = 0;
+    virtual status_t setPhoneState(audio_mode_t state) = 0;
+    virtual status_t setForceUse(audio_policy_force_use_t usage,
+                                    audio_policy_forced_cfg_t config) = 0;
+    virtual audio_policy_forced_cfg_t getForceUse(audio_policy_force_use_t usage) = 0;
+    virtual audio_io_handle_t getOutput(audio_stream_type_t stream,
+                                        uint32_t samplingRate = 0,
+                                        audio_format_t format = AUDIO_FORMAT_DEFAULT,
+                                        audio_channel_mask_t channelMask = 0,
+                                        audio_output_flags_t flags = AUDIO_OUTPUT_FLAG_NONE,
+                                        const audio_offload_info_t *offloadInfo = NULL) = 0;
+    virtual status_t getOutputForAttr(const audio_attributes_t *attr,
+                                      audio_io_handle_t *output,
+                                      audio_session_t session,
+                                      audio_stream_type_t *stream,
+                                      uid_t uid,
+                                      const audio_config_t *config,
+                                      audio_output_flags_t flags,
+                                      audio_port_handle_t selectedDeviceId,
+                                      audio_port_handle_t *portId) = 0;
+    virtual status_t startOutput(audio_io_handle_t output,
+                                 audio_stream_type_t stream,
+                                 audio_session_t session) = 0;
+    virtual status_t stopOutput(audio_io_handle_t output,
+                                audio_stream_type_t stream,
+                                audio_session_t session) = 0;
+    virtual void releaseOutput(audio_io_handle_t output,
+                               audio_stream_type_t stream,
+                               audio_session_t session) = 0;
+    virtual status_t  getInputForAttr(const audio_attributes_t *attr,
+                              audio_io_handle_t *input,
+                              audio_session_t session,
+                              pid_t pid,
+                              uid_t uid,
+                              const audio_config_base_t *config,
+                              audio_input_flags_t flags,
+                              audio_port_handle_t selectedDeviceId,
+                              audio_port_handle_t *portId) = 0;
+    virtual status_t startInput(audio_io_handle_t input,
+                                audio_session_t session) = 0;
+    virtual status_t stopInput(audio_io_handle_t input,
+                               audio_session_t session) = 0;
+    virtual void releaseInput(audio_io_handle_t input,
+                              audio_session_t session) = 0;
+    virtual status_t initStreamVolume(audio_stream_type_t stream,
+                                      int indexMin,
+                                      int indexMax) = 0;
+    virtual status_t setStreamVolumeIndex(audio_stream_type_t stream,
+                                          int index,
+                                          audio_devices_t device) = 0;
+    virtual status_t getStreamVolumeIndex(audio_stream_type_t stream,
+                                          int *index,
+                                          audio_devices_t device) = 0;
+    virtual uint32_t getStrategyForStream(audio_stream_type_t stream) = 0;
+    virtual audio_devices_t getDevicesForStream(audio_stream_type_t stream) = 0;
+    virtual audio_io_handle_t getOutputForEffect(const effect_descriptor_t *desc) = 0;
+    virtual status_t registerEffect(const effect_descriptor_t *desc,
+                                    audio_io_handle_t io,
+                                    uint32_t strategy,
+                                    audio_session_t session,
+                                    int id) = 0;
+    virtual status_t unregisterEffect(int id) = 0;
+    virtual status_t setEffectEnabled(int id, bool enabled) = 0;
+    virtual bool     isStreamActive(audio_stream_type_t stream, uint32_t inPastMs = 0) const = 0;
+    virtual bool     isStreamActiveRemotely(audio_stream_type_t stream, uint32_t inPastMs = 0)
+                             const = 0;
+    virtual bool     isSourceActive(audio_source_t source) const = 0;
+    virtual status_t queryDefaultPreProcessing(audio_session_t audioSession,
+                                              effect_descriptor_t *descriptors,
+                                              uint32_t *count) = 0;
+   // Check if offload is possible for given format, stream type, sample rate,
+    // bit rate, duration, video and streaming or offload property is enabled
+    virtual bool isOffloadSupported(const audio_offload_info_t& info) = 0;
+
+    /* List available audio ports and their attributes */
+    virtual status_t listAudioPorts(audio_port_role_t role,
+                                    audio_port_type_t type,
+                                    unsigned int *num_ports,
+                                    struct audio_port *ports,
+                                    unsigned int *generation) = 0;
+
+    /* Get attributes for a given audio port */
+    virtual status_t getAudioPort(struct audio_port *port) = 0;
+
+    /* Create an audio patch between several source and sink ports */
+    virtual status_t createAudioPatch(const struct audio_patch *patch,
+                                       audio_patch_handle_t *handle) = 0;
+
+    /* Release an audio patch */
+    virtual status_t releaseAudioPatch(audio_patch_handle_t handle) = 0;
+
+    /* List existing audio patches */
+    virtual status_t listAudioPatches(unsigned int *num_patches,
+                                      struct audio_patch *patches,
+                                      unsigned int *generation) = 0;
+    /* Set audio port configuration */
+    virtual status_t setAudioPortConfig(const struct audio_port_config *config) = 0;
+
+    virtual void registerClient(const sp<IAudioPolicyServiceClient>& client) = 0;
+
+    virtual void setAudioPortCallbacksEnabled(bool enabled) = 0;
+
+    virtual status_t acquireSoundTriggerSession(audio_session_t *session,
+                                           audio_io_handle_t *ioHandle,
+                                           audio_devices_t *device) = 0;
+
+    virtual status_t releaseSoundTriggerSession(audio_session_t session) = 0;
+
+    virtual audio_mode_t getPhoneState() = 0;
+
+    virtual status_t registerPolicyMixes(const Vector<AudioMix>& mixes, bool registration) = 0;
+
+    virtual status_t startAudioSource(const struct audio_port_config *source,
+                                      const audio_attributes_t *attributes,
+                                      audio_patch_handle_t *handle) = 0;
+    virtual status_t stopAudioSource(audio_patch_handle_t handle) = 0;
+
+    virtual status_t setMasterMono(bool mono) = 0;
+    virtual status_t getMasterMono(bool *mono) = 0;
+};
+
+
+// ----------------------------------------------------------------------------
+
+class BnAudioPolicyService : public BnInterface<IAudioPolicyService>
+{
+public:
+    virtual status_t    onTransact( uint32_t code,
+                                    const Parcel& data,
+                                    Parcel* reply,
+                                    uint32_t flags = 0);
+};
+
+// ----------------------------------------------------------------------------
+
+}; // namespace android
+
+#endif // ANDROID_IAUDIOPOLICYSERVICE_H
diff --git a/include/media/IAudioPolicyServiceClient.h b/media/libaudioclient/include/IAudioPolicyServiceClient.h
similarity index 100%
rename from include/media/IAudioPolicyServiceClient.h
rename to media/libaudioclient/include/IAudioPolicyServiceClient.h
diff --git a/include/media/IAudioRecord.h b/media/libaudioclient/include/IAudioRecord.h
similarity index 100%
rename from include/media/IAudioRecord.h
rename to media/libaudioclient/include/IAudioRecord.h
diff --git a/media/libaudioclient/include/IAudioTrack.h b/media/libaudioclient/include/IAudioTrack.h
new file mode 100644
index 0000000..27a62d6
--- /dev/null
+++ b/media/libaudioclient/include/IAudioTrack.h
@@ -0,0 +1,103 @@
+/*
+ * Copyright (C) 2007 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_IAUDIOTRACK_H
+#define ANDROID_IAUDIOTRACK_H
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <utils/RefBase.h>
+#include <utils/Errors.h>
+#include <binder/IInterface.h>
+#include <binder/IMemory.h>
+#include <utils/String8.h>
+#include <media/AudioTimestamp.h>
+#include <media/VolumeShaper.h>
+
+namespace android {
+
+// ----------------------------------------------------------------------------
+
+class IAudioTrack : public IInterface
+{
+public:
+    DECLARE_META_INTERFACE(AudioTrack);
+
+    /* Get this track's control block */
+    virtual sp<IMemory> getCblk() const = 0;
+
+    /* After it's created the track is not active. Call start() to
+     * make it active.
+     */
+    virtual status_t    start() = 0;
+
+    /* Stop a track. If set, the callback will cease being called and
+     * obtainBuffer will return an error. Buffers that are already released
+     * will continue to be processed, unless/until flush() is called.
+     */
+    virtual void        stop() = 0;
+
+    /* Flush a stopped or paused track. All pending/released buffers are discarded.
+     * This function has no effect if the track is not stopped or paused.
+     */
+    virtual void        flush() = 0;
+
+    /* Pause a track. If set, the callback will cease being called and
+     * obtainBuffer will return an error. Buffers that are already released
+     * will continue to be processed, unless/until flush() is called.
+     */
+    virtual void        pause() = 0;
+
+    /* Attach track auxiliary output to specified effect. Use effectId = 0
+     * to detach track from effect.
+     */
+    virtual status_t    attachAuxEffect(int effectId) = 0;
+
+    /* Send parameters to the audio hardware */
+    virtual status_t    setParameters(const String8& keyValuePairs) = 0;
+
+    /* Return NO_ERROR if timestamp is valid.  timestamp is undefined otherwise. */
+    virtual status_t    getTimestamp(AudioTimestamp& timestamp) = 0;
+
+    /* Signal the playback thread for a change in control block */
+    virtual void        signal() = 0;
+
+    /* Sets the volume shaper */
+    virtual VolumeShaper::Status applyVolumeShaper(
+            const sp<VolumeShaper::Configuration>& configuration,
+            const sp<VolumeShaper::Operation>& operation) = 0;
+
+    /* gets the volume shaper state */
+    virtual sp<VolumeShaper::State> getVolumeShaperState(int id) = 0;
+};
+
+// ----------------------------------------------------------------------------
+
+class BnAudioTrack : public BnInterface<IAudioTrack>
+{
+public:
+    virtual status_t    onTransact( uint32_t code,
+                                    const Parcel& data,
+                                    Parcel* reply,
+                                    uint32_t flags = 0);
+};
+
+// ----------------------------------------------------------------------------
+
+}; // namespace android
+
+#endif // ANDROID_IAUDIOTRACK_H
diff --git a/include/media/IEffect.h b/media/libaudioclient/include/IEffect.h
similarity index 100%
rename from include/media/IEffect.h
rename to media/libaudioclient/include/IEffect.h
diff --git a/include/media/IEffectClient.h b/media/libaudioclient/include/IEffectClient.h
similarity index 100%
rename from include/media/IEffectClient.h
rename to media/libaudioclient/include/IEffectClient.h
diff --git a/include/media/ToneGenerator.h b/media/libaudioclient/include/ToneGenerator.h
similarity index 100%
rename from include/media/ToneGenerator.h
rename to media/libaudioclient/include/ToneGenerator.h
diff --git a/media/libaudiohal/Android.mk b/media/libaudiohal/Android.mk
new file mode 100644
index 0000000..032b3e9
--- /dev/null
+++ b/media/libaudiohal/Android.mk
@@ -0,0 +1,63 @@
+LOCAL_PATH := $(call my-dir)
+
+include $(CLEAR_VARS)
+
+LOCAL_SHARED_LIBRARIES := \
+    libcutils   \
+    libeffects  \
+    libhardware \
+    liblog      \
+    libutils
+
+ifeq ($(USE_LEGACY_LOCAL_AUDIO_HAL), true)
+
+# Use audiohal directly w/o hwbinder middleware.
+# This is for performance comparison and debugging only.
+
+LOCAL_SRC_FILES := \
+    DeviceHalLocal.cpp          \
+    DevicesFactoryHalLocal.cpp  \
+    EffectBufferHalLocal.cpp    \
+    EffectHalLocal.cpp          \
+    EffectsFactoryHalLocal.cpp  \
+    StreamHalLocal.cpp
+
+else  # if !USE_LEGACY_LOCAL_AUDIO_HAL
+
+LOCAL_SRC_FILES := \
+    ConversionHelperHidl.cpp   \
+    HalDeathHandlerHidl.cpp   \
+    DeviceHalHidl.cpp          \
+    DevicesFactoryHalHidl.cpp  \
+    EffectBufferHalHidl.cpp    \
+    EffectHalHidl.cpp          \
+    EffectsFactoryHalHidl.cpp  \
+    StreamHalHidl.cpp
+
+LOCAL_SHARED_LIBRARIES += \
+    libbase          \
+    libfmq           \
+    libhwbinder      \
+    libhidlbase      \
+    libhidlmemory    \
+    libhidltransport \
+    android.hardware.audio@2.0             \
+    android.hardware.audio.common@2.0      \
+    android.hardware.audio.common@2.0-util \
+    android.hardware.audio.effect@2.0      \
+    android.hidl.allocator@1.0             \
+    android.hidl.memory@1.0                \
+    libmedia_helper  \
+    libmediautils
+
+endif  # USE_LEGACY_LOCAL_AUDIO_HAL
+
+LOCAL_C_INCLUDES := $(LOCAL_PATH)/include
+
+LOCAL_EXPORT_C_INCLUDE_DIRS := $(LOCAL_PATH)/include
+
+LOCAL_MODULE := libaudiohal
+
+LOCAL_CFLAGS := -Wall -Werror
+
+include $(BUILD_SHARED_LIBRARY)
diff --git a/media/libaudiohal/ConversionHelperHidl.cpp b/media/libaudiohal/ConversionHelperHidl.cpp
new file mode 100644
index 0000000..9f9eb75
--- /dev/null
+++ b/media/libaudiohal/ConversionHelperHidl.cpp
@@ -0,0 +1,89 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <string.h>
+
+#define LOG_TAG "HalHidl"
+#include <media/AudioParameter.h>
+#include <utils/Log.h>
+
+#include "ConversionHelperHidl.h"
+
+using ::android::hardware::audio::V2_0::Result;
+
+namespace android {
+
+// static
+status_t ConversionHelperHidl::keysFromHal(const String8& keys, hidl_vec<hidl_string> *hidlKeys) {
+    AudioParameter halKeys(keys);
+    if (halKeys.size() == 0) return BAD_VALUE;
+    hidlKeys->resize(halKeys.size());
+    for (size_t i = 0; i < halKeys.size(); ++i) {
+        String8 key;
+        status_t status = halKeys.getAt(i, key);
+        if (status != OK) return status;
+        (*hidlKeys)[i] = key.string();
+    }
+    return OK;
+}
+
+// static
+status_t ConversionHelperHidl::parametersFromHal(
+        const String8& kvPairs, hidl_vec<ParameterValue> *hidlParams) {
+    AudioParameter params(kvPairs);
+    if (params.size() == 0) return BAD_VALUE;
+    hidlParams->resize(params.size());
+    for (size_t i = 0; i < params.size(); ++i) {
+        String8 key, value;
+        status_t status = params.getAt(i, key, value);
+        if (status != OK) return status;
+        (*hidlParams)[i].key = key.string();
+        (*hidlParams)[i].value = value.string();
+    }
+    return OK;
+}
+
+// static
+void ConversionHelperHidl::parametersToHal(
+        const hidl_vec<ParameterValue>& parameters, String8 *values) {
+    AudioParameter params;
+    for (size_t i = 0; i < parameters.size(); ++i) {
+        params.add(String8(parameters[i].key.c_str()), String8(parameters[i].value.c_str()));
+    }
+    values->setTo(params.toString());
+}
+
+ConversionHelperHidl::ConversionHelperHidl(const char* className)
+        : mClassName(className) {
+}
+
+// static
+status_t ConversionHelperHidl::analyzeResult(const Result& result) {
+    switch (result) {
+        case Result::OK: return OK;
+        case Result::INVALID_ARGUMENTS: return BAD_VALUE;
+        case Result::INVALID_STATE: return NOT_ENOUGH_DATA;
+        case Result::NOT_INITIALIZED: return NO_INIT;
+        case Result::NOT_SUPPORTED: return INVALID_OPERATION;
+        default: return NO_INIT;
+    }
+}
+
+void ConversionHelperHidl::emitError(const char* funcName, const char* description) {
+    ALOGE("%s %p %s: %s (from rpc)", mClassName, this, funcName, description);
+}
+
+}  // namespace android
diff --git a/media/libaudiohal/ConversionHelperHidl.h b/media/libaudiohal/ConversionHelperHidl.h
new file mode 100644
index 0000000..c356f37
--- /dev/null
+++ b/media/libaudiohal/ConversionHelperHidl.h
@@ -0,0 +1,83 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_CONVERSION_HELPER_HIDL_H
+#define ANDROID_HARDWARE_CONVERSION_HELPER_HIDL_H
+
+#include <android/hardware/audio/2.0/types.h>
+#include <hidl/HidlSupport.h>
+#include <utils/String8.h>
+
+using ::android::hardware::audio::V2_0::ParameterValue;
+using ::android::hardware::Return;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+
+namespace android {
+
+class ConversionHelperHidl {
+  protected:
+    static status_t keysFromHal(const String8& keys, hidl_vec<hidl_string> *hidlKeys);
+    static status_t parametersFromHal(const String8& kvPairs, hidl_vec<ParameterValue> *hidlParams);
+    static void parametersToHal(const hidl_vec<ParameterValue>& parameters, String8 *values);
+
+    ConversionHelperHidl(const char* className);
+
+    template<typename R, typename T>
+    status_t processReturn(const char* funcName, const Return<R>& ret, T *retval) {
+        if (ret.isOk()) {
+            // This way it also works for enum class to unscoped enum conversion.
+            *retval = static_cast<T>(static_cast<R>(ret));
+            return OK;
+        }
+        return processReturn(funcName, ret);
+    }
+
+    template<typename T>
+    status_t processReturn(const char* funcName, const Return<T>& ret) {
+        if (!ret.isOk()) {
+            emitError(funcName, ret.description().c_str());
+        }
+        return ret.isOk() ? OK : FAILED_TRANSACTION;
+    }
+
+    status_t processReturn(const char* funcName, const Return<hardware::audio::V2_0::Result>& ret) {
+        if (!ret.isOk()) {
+            emitError(funcName, ret.description().c_str());
+        }
+        return ret.isOk() ? analyzeResult(ret) : FAILED_TRANSACTION;
+    }
+
+    template<typename T>
+    status_t processReturn(
+            const char* funcName, const Return<T>& ret, hardware::audio::V2_0::Result retval) {
+        if (!ret.isOk()) {
+            emitError(funcName, ret.description().c_str());
+        }
+        return ret.isOk() ? analyzeResult(retval) : FAILED_TRANSACTION;
+    }
+
+  private:
+    const char* mClassName;
+
+    static status_t analyzeResult(const hardware::audio::V2_0::Result& result);
+
+    void emitError(const char* funcName, const char* description);
+};
+
+}  // namespace android
+
+#endif // ANDROID_HARDWARE_CONVERSION_HELPER_HIDL_H
diff --git a/media/libaudiohal/DeviceHalHidl.cpp b/media/libaudiohal/DeviceHalHidl.cpp
new file mode 100644
index 0000000..71fbd98
--- /dev/null
+++ b/media/libaudiohal/DeviceHalHidl.cpp
@@ -0,0 +1,360 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stdio.h>
+
+#define LOG_TAG "DeviceHalHidl"
+//#define LOG_NDEBUG 0
+
+#include <android/hardware/audio/2.0/IPrimaryDevice.h>
+#include <cutils/native_handle.h>
+#include <hwbinder/IPCThreadState.h>
+#include <utils/Log.h>
+
+#include "DeviceHalHidl.h"
+#include "HidlUtils.h"
+#include "StreamHalHidl.h"
+
+using ::android::hardware::audio::common::V2_0::AudioConfig;
+using ::android::hardware::audio::common::V2_0::AudioDevice;
+using ::android::hardware::audio::common::V2_0::AudioInputFlag;
+using ::android::hardware::audio::common::V2_0::AudioOutputFlag;
+using ::android::hardware::audio::common::V2_0::AudioPatchHandle;
+using ::android::hardware::audio::common::V2_0::AudioPort;
+using ::android::hardware::audio::common::V2_0::AudioPortConfig;
+using ::android::hardware::audio::common::V2_0::AudioMode;
+using ::android::hardware::audio::common::V2_0::AudioSource;
+using ::android::hardware::audio::V2_0::DeviceAddress;
+using ::android::hardware::audio::V2_0::IPrimaryDevice;
+using ::android::hardware::audio::V2_0::ParameterValue;
+using ::android::hardware::audio::V2_0::Result;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+
+namespace android {
+
+namespace {
+
+status_t deviceAddressFromHal(
+        audio_devices_t device, const char* halAddress, DeviceAddress* address) {
+    address->device = AudioDevice(device);
+
+    if (address == nullptr || strnlen(halAddress, AUDIO_DEVICE_MAX_ADDRESS_LEN) == 0) {
+        return OK;
+    }
+    const bool isInput = (device & AUDIO_DEVICE_BIT_IN) != 0;
+    if (isInput) device &= ~AUDIO_DEVICE_BIT_IN;
+    if ((!isInput && (device & AUDIO_DEVICE_OUT_ALL_A2DP) != 0)
+            || (isInput && (device & AUDIO_DEVICE_IN_BLUETOOTH_A2DP) != 0)) {
+        int status = sscanf(halAddress,
+                "%hhX:%hhX:%hhX:%hhX:%hhX:%hhX",
+                &address->address.mac[0], &address->address.mac[1], &address->address.mac[2],
+                &address->address.mac[3], &address->address.mac[4], &address->address.mac[5]);
+        return status == 6 ? OK : BAD_VALUE;
+    } else if ((!isInput && (device & AUDIO_DEVICE_OUT_IP) != 0)
+            || (isInput && (device & AUDIO_DEVICE_IN_IP) != 0)) {
+        int status = sscanf(halAddress,
+                "%hhu.%hhu.%hhu.%hhu",
+                &address->address.ipv4[0], &address->address.ipv4[1],
+                &address->address.ipv4[2], &address->address.ipv4[3]);
+        return status == 4 ? OK : BAD_VALUE;
+    } else if ((!isInput && (device & AUDIO_DEVICE_OUT_ALL_USB)) != 0
+            || (isInput && (device & AUDIO_DEVICE_IN_ALL_USB)) != 0) {
+        int status = sscanf(halAddress,
+                "card=%d;device=%d",
+                &address->address.alsa.card, &address->address.alsa.device);
+        return status == 2 ? OK : BAD_VALUE;
+    } else if ((!isInput && (device & AUDIO_DEVICE_OUT_BUS) != 0)
+            || (isInput && (device & AUDIO_DEVICE_IN_BUS) != 0)) {
+        if (halAddress != NULL) {
+            address->busAddress = halAddress;
+            return OK;
+        }
+        return BAD_VALUE;
+    } else if ((!isInput && (device & AUDIO_DEVICE_OUT_REMOTE_SUBMIX)) != 0
+            || (isInput && (device & AUDIO_DEVICE_IN_REMOTE_SUBMIX) != 0)) {
+        if (halAddress != NULL) {
+            address->rSubmixAddress = halAddress;
+            return OK;
+        }
+        return BAD_VALUE;
+    }
+    return OK;
+}
+
+}  // namespace
+
+DeviceHalHidl::DeviceHalHidl(const sp<IDevice>& device)
+        : ConversionHelperHidl("Device"), mDevice(device) {
+}
+
+DeviceHalHidl::~DeviceHalHidl() {
+    if (mDevice != 0) {
+        mDevice.clear();
+        hardware::IPCThreadState::self()->flushCommands();
+    }
+}
+
+status_t DeviceHalHidl::getSupportedDevices(uint32_t*) {
+    // Obsolete.
+    return INVALID_OPERATION;
+}
+
+status_t DeviceHalHidl::initCheck() {
+    if (mDevice == 0) return NO_INIT;
+    return processReturn("initCheck", mDevice->initCheck());
+}
+
+status_t DeviceHalHidl::setVoiceVolume(float volume) {
+    if (mDevice == 0) return NO_INIT;
+    sp<IPrimaryDevice> primaryDev = IPrimaryDevice::castFrom(mDevice);
+    if (primaryDev == 0) return INVALID_OPERATION;
+    return processReturn("setVoiceVolume", primaryDev->setVoiceVolume(volume));
+}
+
+status_t DeviceHalHidl::setMasterVolume(float volume) {
+    if (mDevice == 0) return NO_INIT;
+    sp<IPrimaryDevice> primaryDev = IPrimaryDevice::castFrom(mDevice);
+    if (primaryDev == 0) return INVALID_OPERATION;
+    return processReturn("setMasterVolume", primaryDev->setMasterVolume(volume));
+}
+
+status_t DeviceHalHidl::getMasterVolume(float *volume) {
+    if (mDevice == 0) return NO_INIT;
+    sp<IPrimaryDevice> primaryDev = IPrimaryDevice::castFrom(mDevice);
+    if (primaryDev == 0) return INVALID_OPERATION;
+    Result retval;
+    Return<void> ret = primaryDev->getMasterVolume(
+            [&](Result r, float v) {
+                retval = r;
+                if (retval == Result::OK) {
+                    *volume = v;
+                }
+            });
+    return processReturn("getMasterVolume", ret, retval);
+}
+
+status_t DeviceHalHidl::setMode(audio_mode_t mode) {
+    if (mDevice == 0) return NO_INIT;
+    sp<IPrimaryDevice> primaryDev = IPrimaryDevice::castFrom(mDevice);
+    if (primaryDev == 0) return INVALID_OPERATION;
+    return processReturn("setMode", primaryDev->setMode(AudioMode(mode)));
+}
+
+status_t DeviceHalHidl::setMicMute(bool state) {
+    if (mDevice == 0) return NO_INIT;
+    return processReturn("setMicMute", mDevice->setMicMute(state));
+}
+
+status_t DeviceHalHidl::getMicMute(bool *state) {
+    if (mDevice == 0) return NO_INIT;
+    Result retval;
+    Return<void> ret = mDevice->getMicMute(
+            [&](Result r, bool mute) {
+                retval = r;
+                if (retval == Result::OK) {
+                    *state = mute;
+                }
+            });
+    return processReturn("getMicMute", ret, retval);
+}
+
+status_t DeviceHalHidl::setMasterMute(bool state) {
+    if (mDevice == 0) return NO_INIT;
+    return processReturn("setMasterMute", mDevice->setMasterMute(state));
+}
+
+status_t DeviceHalHidl::getMasterMute(bool *state) {
+    if (mDevice == 0) return NO_INIT;
+    Result retval;
+    Return<void> ret = mDevice->getMasterMute(
+            [&](Result r, bool mute) {
+                retval = r;
+                if (retval == Result::OK) {
+                    *state = mute;
+                }
+            });
+    return processReturn("getMasterMute", ret, retval);
+}
+
+status_t DeviceHalHidl::setParameters(const String8& kvPairs) {
+    if (mDevice == 0) return NO_INIT;
+    hidl_vec<ParameterValue> hidlParams;
+    status_t status = parametersFromHal(kvPairs, &hidlParams);
+    if (status != OK) return status;
+    return processReturn("setParameters", mDevice->setParameters(hidlParams));
+}
+
+status_t DeviceHalHidl::getParameters(const String8& keys, String8 *values) {
+    values->clear();
+    if (mDevice == 0) return NO_INIT;
+    hidl_vec<hidl_string> hidlKeys;
+    status_t status = keysFromHal(keys, &hidlKeys);
+    if (status != OK) return status;
+    Result retval;
+    Return<void> ret = mDevice->getParameters(
+            hidlKeys,
+            [&](Result r, const hidl_vec<ParameterValue>& parameters) {
+                retval = r;
+                if (retval == Result::OK) {
+                    parametersToHal(parameters, values);
+                }
+            });
+    return processReturn("getParameters", ret, retval);
+}
+
+status_t DeviceHalHidl::getInputBufferSize(
+        const struct audio_config *config, size_t *size) {
+    if (mDevice == 0) return NO_INIT;
+    AudioConfig hidlConfig;
+    HidlUtils::audioConfigFromHal(*config, &hidlConfig);
+    Result retval;
+    Return<void> ret = mDevice->getInputBufferSize(
+            hidlConfig,
+            [&](Result r, uint64_t bufferSize) {
+                retval = r;
+                if (retval == Result::OK) {
+                    *size = static_cast<size_t>(bufferSize);
+                }
+            });
+    return processReturn("getInputBufferSize", ret, retval);
+}
+
+status_t DeviceHalHidl::openOutputStream(
+        audio_io_handle_t handle,
+        audio_devices_t devices,
+        audio_output_flags_t flags,
+        struct audio_config *config,
+        const char *address,
+        sp<StreamOutHalInterface> *outStream) {
+    if (mDevice == 0) return NO_INIT;
+    DeviceAddress hidlDevice;
+    status_t status = deviceAddressFromHal(devices, address, &hidlDevice);
+    if (status != OK) return status;
+    AudioConfig hidlConfig;
+    HidlUtils::audioConfigFromHal(*config, &hidlConfig);
+    Result retval = Result::NOT_INITIALIZED;
+    Return<void> ret = mDevice->openOutputStream(
+            handle,
+            hidlDevice,
+            hidlConfig,
+            AudioOutputFlag(flags),
+            [&](Result r, const sp<IStreamOut>& result, const AudioConfig& suggestedConfig) {
+                retval = r;
+                if (retval == Result::OK) {
+                    *outStream = new StreamOutHalHidl(result);
+                }
+                HidlUtils::audioConfigToHal(suggestedConfig, config);
+            });
+    return processReturn("openOutputStream", ret, retval);
+}
+
+status_t DeviceHalHidl::openInputStream(
+        audio_io_handle_t handle,
+        audio_devices_t devices,
+        struct audio_config *config,
+        audio_input_flags_t flags,
+        const char *address,
+        audio_source_t source,
+        sp<StreamInHalInterface> *inStream) {
+    if (mDevice == 0) return NO_INIT;
+    DeviceAddress hidlDevice;
+    status_t status = deviceAddressFromHal(devices, address, &hidlDevice);
+    if (status != OK) return status;
+    AudioConfig hidlConfig;
+    HidlUtils::audioConfigFromHal(*config, &hidlConfig);
+    Result retval = Result::NOT_INITIALIZED;
+    Return<void> ret = mDevice->openInputStream(
+            handle,
+            hidlDevice,
+            hidlConfig,
+            AudioInputFlag(flags),
+            AudioSource(source),
+            [&](Result r, const sp<IStreamIn>& result, const AudioConfig& suggestedConfig) {
+                retval = r;
+                if (retval == Result::OK) {
+                    *inStream = new StreamInHalHidl(result);
+                }
+                HidlUtils::audioConfigToHal(suggestedConfig, config);
+            });
+    return processReturn("openInputStream", ret, retval);
+}
+
+status_t DeviceHalHidl::supportsAudioPatches(bool *supportsPatches) {
+    if (mDevice == 0) return NO_INIT;
+    return processReturn("supportsAudioPatches", mDevice->supportsAudioPatches(), supportsPatches);
+}
+
+status_t DeviceHalHidl::createAudioPatch(
+        unsigned int num_sources,
+        const struct audio_port_config *sources,
+        unsigned int num_sinks,
+        const struct audio_port_config *sinks,
+        audio_patch_handle_t *patch) {
+    if (mDevice == 0) return NO_INIT;
+    hidl_vec<AudioPortConfig> hidlSources, hidlSinks;
+    HidlUtils::audioPortConfigsFromHal(num_sources, sources, &hidlSources);
+    HidlUtils::audioPortConfigsFromHal(num_sinks, sinks, &hidlSinks);
+    Result retval;
+    Return<void> ret = mDevice->createAudioPatch(
+            hidlSources, hidlSinks,
+            [&](Result r, AudioPatchHandle hidlPatch) {
+                retval = r;
+                if (retval == Result::OK) {
+                    *patch = static_cast<audio_patch_handle_t>(hidlPatch);
+                }
+            });
+    return processReturn("createAudioPatch", ret, retval);
+}
+
+status_t DeviceHalHidl::releaseAudioPatch(audio_patch_handle_t patch) {
+    if (mDevice == 0) return NO_INIT;
+    return processReturn("releaseAudioPatch", mDevice->releaseAudioPatch(patch));
+}
+
+status_t DeviceHalHidl::getAudioPort(struct audio_port *port) {
+    if (mDevice == 0) return NO_INIT;
+    AudioPort hidlPort;
+    HidlUtils::audioPortFromHal(*port, &hidlPort);
+    Result retval;
+    Return<void> ret = mDevice->getAudioPort(
+            hidlPort,
+            [&](Result r, const AudioPort& p) {
+                retval = r;
+                if (retval == Result::OK) {
+                    HidlUtils::audioPortToHal(p, port);
+                }
+            });
+    return processReturn("getAudioPort", ret, retval);
+}
+
+status_t DeviceHalHidl::setAudioPortConfig(const struct audio_port_config *config) {
+    if (mDevice == 0) return NO_INIT;
+    AudioPortConfig hidlConfig;
+    HidlUtils::audioPortConfigFromHal(*config, &hidlConfig);
+    return processReturn("setAudioPortConfig", mDevice->setAudioPortConfig(hidlConfig));
+}
+
+status_t DeviceHalHidl::dump(int fd) {
+    if (mDevice == 0) return NO_INIT;
+    native_handle_t* hidlHandle = native_handle_create(1, 0);
+    hidlHandle->data[0] = fd;
+    Return<void> ret = mDevice->debugDump(hidlHandle);
+    native_handle_delete(hidlHandle);
+    return processReturn("dump", ret);
+}
+
+} // namespace android
diff --git a/media/libaudiohal/DeviceHalHidl.h b/media/libaudiohal/DeviceHalHidl.h
new file mode 100644
index 0000000..9da02a4
--- /dev/null
+++ b/media/libaudiohal/DeviceHalHidl.h
@@ -0,0 +1,123 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_DEVICE_HAL_HIDL_H
+#define ANDROID_HARDWARE_DEVICE_HAL_HIDL_H
+
+#include <android/hardware/audio/2.0/IDevice.h>
+#include <media/audiohal/DeviceHalInterface.h>
+
+#include "ConversionHelperHidl.h"
+
+using ::android::hardware::audio::V2_0::IDevice;
+using ::android::hardware::Return;
+
+namespace android {
+
+class DeviceHalHidl : public DeviceHalInterface, public ConversionHelperHidl
+{
+  public:
+    // Sets the value of 'devices' to a bitmask of 1 or more values of audio_devices_t.
+    virtual status_t getSupportedDevices(uint32_t *devices);
+
+    // Check to see if the audio hardware interface has been initialized.
+    virtual status_t initCheck();
+
+    // Set the audio volume of a voice call. Range is between 0.0 and 1.0.
+    virtual status_t setVoiceVolume(float volume);
+
+    // Set the audio volume for all audio activities other than voice call.
+    virtual status_t setMasterVolume(float volume);
+
+    // Get the current master volume value for the HAL.
+    virtual status_t getMasterVolume(float *volume);
+
+    // Called when the audio mode changes.
+    virtual status_t setMode(audio_mode_t mode);
+
+    // Muting control.
+    virtual status_t setMicMute(bool state);
+    virtual status_t getMicMute(bool *state);
+    virtual status_t setMasterMute(bool state);
+    virtual status_t getMasterMute(bool *state);
+
+    // Set global audio parameters.
+    virtual status_t setParameters(const String8& kvPairs);
+
+    // Get global audio parameters.
+    virtual status_t getParameters(const String8& keys, String8 *values);
+
+    // Returns audio input buffer size according to parameters passed.
+    virtual status_t getInputBufferSize(const struct audio_config *config,
+            size_t *size);
+
+    // Creates and opens the audio hardware output stream. The stream is closed
+    // by releasing all references to the returned object.
+    virtual status_t openOutputStream(
+            audio_io_handle_t handle,
+            audio_devices_t devices,
+            audio_output_flags_t flags,
+            struct audio_config *config,
+            const char *address,
+            sp<StreamOutHalInterface> *outStream);
+
+    // Creates and opens the audio hardware input stream. The stream is closed
+    // by releasing all references to the returned object.
+    virtual status_t openInputStream(
+            audio_io_handle_t handle,
+            audio_devices_t devices,
+            struct audio_config *config,
+            audio_input_flags_t flags,
+            const char *address,
+            audio_source_t source,
+            sp<StreamInHalInterface> *inStream);
+
+    // Returns whether createAudioPatch and releaseAudioPatch operations are supported.
+    virtual status_t supportsAudioPatches(bool *supportsPatches);
+
+    // Creates an audio patch between several source and sink ports.
+    virtual status_t createAudioPatch(
+            unsigned int num_sources,
+            const struct audio_port_config *sources,
+            unsigned int num_sinks,
+            const struct audio_port_config *sinks,
+            audio_patch_handle_t *patch);
+
+    // Releases an audio patch.
+    virtual status_t releaseAudioPatch(audio_patch_handle_t patch);
+
+    // Fills the list of supported attributes for a given audio port.
+    virtual status_t getAudioPort(struct audio_port *port);
+
+    // Set audio port configuration.
+    virtual status_t setAudioPortConfig(const struct audio_port_config *config);
+
+    virtual status_t dump(int fd);
+
+  private:
+    friend class DevicesFactoryHalHidl;
+    sp<IDevice> mDevice;
+
+    // Can not be constructed directly by clients.
+    explicit DeviceHalHidl(const sp<IDevice>& device);
+
+    // The destructor automatically closes the device.
+    virtual ~DeviceHalHidl();
+};
+
+} // namespace android
+
+#endif // ANDROID_HARDWARE_DEVICE_HAL_HIDL_H
diff --git a/media/libaudiohal/DeviceHalLocal.cpp b/media/libaudiohal/DeviceHalLocal.cpp
new file mode 100644
index 0000000..fc098f5
--- /dev/null
+++ b/media/libaudiohal/DeviceHalLocal.cpp
@@ -0,0 +1,199 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "DeviceHalLocal"
+//#define LOG_NDEBUG 0
+
+#include <utils/Log.h>
+
+#include "DeviceHalLocal.h"
+#include "StreamHalLocal.h"
+
+namespace android {
+
+DeviceHalLocal::DeviceHalLocal(audio_hw_device_t *dev)
+        : mDev(dev) {
+}
+
+DeviceHalLocal::~DeviceHalLocal() {
+    int status = audio_hw_device_close(mDev);
+    ALOGW_IF(status, "Error closing audio hw device %p: %s", mDev, strerror(-status));
+    mDev = 0;
+}
+
+status_t DeviceHalLocal::getSupportedDevices(uint32_t *devices) {
+    if (mDev->get_supported_devices == NULL) return INVALID_OPERATION;
+    *devices = mDev->get_supported_devices(mDev);
+    return OK;
+}
+
+status_t DeviceHalLocal::initCheck() {
+    return mDev->init_check(mDev);
+}
+
+status_t DeviceHalLocal::setVoiceVolume(float volume) {
+    return mDev->set_voice_volume(mDev, volume);
+}
+
+status_t DeviceHalLocal::setMasterVolume(float volume) {
+    if (mDev->set_master_volume == NULL) return INVALID_OPERATION;
+    return mDev->set_master_volume(mDev, volume);
+}
+
+status_t DeviceHalLocal::getMasterVolume(float *volume) {
+    if (mDev->get_master_volume == NULL) return INVALID_OPERATION;
+    return mDev->get_master_volume(mDev, volume);
+}
+
+status_t DeviceHalLocal::setMode(audio_mode_t mode) {
+    return mDev->set_mode(mDev, mode);
+}
+
+status_t DeviceHalLocal::setMicMute(bool state) {
+    return mDev->set_mic_mute(mDev, state);
+}
+
+status_t DeviceHalLocal::getMicMute(bool *state) {
+    return mDev->get_mic_mute(mDev, state);
+}
+
+status_t DeviceHalLocal::setMasterMute(bool state) {
+    if (mDev->set_master_mute == NULL) return INVALID_OPERATION;
+    return mDev->set_master_mute(mDev, state);
+}
+
+status_t DeviceHalLocal::getMasterMute(bool *state) {
+    if (mDev->get_master_mute == NULL) return INVALID_OPERATION;
+    return mDev->get_master_mute(mDev, state);
+}
+
+status_t DeviceHalLocal::setParameters(const String8& kvPairs) {
+    return mDev->set_parameters(mDev, kvPairs.string());
+}
+
+status_t DeviceHalLocal::getParameters(const String8& keys, String8 *values) {
+    char *halValues = mDev->get_parameters(mDev, keys.string());
+    if (halValues != NULL) {
+        values->setTo(halValues);
+        free(halValues);
+    } else {
+        values->clear();
+    }
+    return OK;
+}
+
+status_t DeviceHalLocal::getInputBufferSize(
+        const struct audio_config *config, size_t *size) {
+    *size = mDev->get_input_buffer_size(mDev, config);
+    return OK;
+}
+
+status_t DeviceHalLocal::openOutputStream(
+        audio_io_handle_t handle,
+        audio_devices_t devices,
+        audio_output_flags_t flags,
+        struct audio_config *config,
+        const char *address,
+        sp<StreamOutHalInterface> *outStream) {
+    audio_stream_out_t *halStream;
+    ALOGV("open_output_stream handle: %d devices: %x flags: %#x"
+            "srate: %d format %#x channels %x address %s",
+            handle, devices, flags,
+            config->sample_rate, config->format, config->channel_mask,
+            address);
+    int openResut = mDev->open_output_stream(
+            mDev, handle, devices, flags, config, &halStream, address);
+    if (openResut == OK) {
+        *outStream = new StreamOutHalLocal(halStream, this);
+    }
+    ALOGV("open_output_stream status %d stream %p", openResut, halStream);
+    return openResut;
+}
+
+status_t DeviceHalLocal::openInputStream(
+        audio_io_handle_t handle,
+        audio_devices_t devices,
+        struct audio_config *config,
+        audio_input_flags_t flags,
+        const char *address,
+        audio_source_t source,
+        sp<StreamInHalInterface> *inStream) {
+    audio_stream_in_t *halStream;
+    ALOGV("open_input_stream handle: %d devices: %x flags: %#x "
+            "srate: %d format %#x channels %x address %s source %d",
+            handle, devices, flags,
+            config->sample_rate, config->format, config->channel_mask,
+            address, source);
+    int openResult = mDev->open_input_stream(
+            mDev, handle, devices, config, &halStream, flags, address, source);
+    if (openResult == OK) {
+        *inStream = new StreamInHalLocal(halStream, this);
+    }
+    ALOGV("open_input_stream status %d stream %p", openResult, inStream);
+    return openResult;
+}
+
+status_t DeviceHalLocal::supportsAudioPatches(bool *supportsPatches) {
+    *supportsPatches = version() >= AUDIO_DEVICE_API_VERSION_3_0;
+    return OK;
+}
+
+status_t DeviceHalLocal::createAudioPatch(
+        unsigned int num_sources,
+        const struct audio_port_config *sources,
+        unsigned int num_sinks,
+        const struct audio_port_config *sinks,
+        audio_patch_handle_t *patch) {
+    if (version() >= AUDIO_DEVICE_API_VERSION_3_0) {
+        return mDev->create_audio_patch(
+                mDev, num_sources, sources, num_sinks, sinks, patch);
+    } else {
+        return INVALID_OPERATION;
+    }
+}
+
+status_t DeviceHalLocal::releaseAudioPatch(audio_patch_handle_t patch) {
+    if (version() >= AUDIO_DEVICE_API_VERSION_3_0) {
+        return mDev->release_audio_patch(mDev, patch);
+    } else {
+        return INVALID_OPERATION;
+    }
+}
+
+status_t DeviceHalLocal::getAudioPort(struct audio_port *port) {
+    return mDev->get_audio_port(mDev, port);
+}
+
+status_t DeviceHalLocal::setAudioPortConfig(const struct audio_port_config *config) {
+    if (version() >= AUDIO_DEVICE_API_VERSION_3_0)
+        return mDev->set_audio_port_config(mDev, config);
+    else
+        return INVALID_OPERATION;
+}
+
+status_t DeviceHalLocal::dump(int fd) {
+    return mDev->dump(mDev, fd);
+}
+
+void DeviceHalLocal::closeOutputStream(struct audio_stream_out *stream_out) {
+    mDev->close_output_stream(mDev, stream_out);
+}
+
+void DeviceHalLocal::closeInputStream(struct audio_stream_in *stream_in) {
+    mDev->close_input_stream(mDev, stream_in);
+}
+
+} // namespace android
diff --git a/media/libaudiohal/DeviceHalLocal.h b/media/libaudiohal/DeviceHalLocal.h
new file mode 100644
index 0000000..865f296
--- /dev/null
+++ b/media/libaudiohal/DeviceHalLocal.h
@@ -0,0 +1,124 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_DEVICE_HAL_LOCAL_H
+#define ANDROID_HARDWARE_DEVICE_HAL_LOCAL_H
+
+#include <hardware/audio.h>
+#include <media/audiohal/DeviceHalInterface.h>
+
+namespace android {
+
+class DeviceHalLocal : public DeviceHalInterface
+{
+  public:
+    // Sets the value of 'devices' to a bitmask of 1 or more values of audio_devices_t.
+    virtual status_t getSupportedDevices(uint32_t *devices);
+
+    // Check to see if the audio hardware interface has been initialized.
+    virtual status_t initCheck();
+
+    // Set the audio volume of a voice call. Range is between 0.0 and 1.0.
+    virtual status_t setVoiceVolume(float volume);
+
+    // Set the audio volume for all audio activities other than voice call.
+    virtual status_t setMasterVolume(float volume);
+
+    // Get the current master volume value for the HAL.
+    virtual status_t getMasterVolume(float *volume);
+
+    // Called when the audio mode changes.
+    virtual status_t setMode(audio_mode_t mode);
+
+    // Muting control.
+    virtual status_t setMicMute(bool state);
+    virtual status_t getMicMute(bool *state);
+    virtual status_t setMasterMute(bool state);
+    virtual status_t getMasterMute(bool *state);
+
+    // Set global audio parameters.
+    virtual status_t setParameters(const String8& kvPairs);
+
+    // Get global audio parameters.
+    virtual status_t getParameters(const String8& keys, String8 *values);
+
+    // Returns audio input buffer size according to parameters passed.
+    virtual status_t getInputBufferSize(const struct audio_config *config,
+            size_t *size);
+
+    // Creates and opens the audio hardware output stream. The stream is closed
+    // by releasing all references to the returned object.
+    virtual status_t openOutputStream(
+            audio_io_handle_t handle,
+            audio_devices_t devices,
+            audio_output_flags_t flags,
+            struct audio_config *config,
+            const char *address,
+            sp<StreamOutHalInterface> *outStream);
+
+    // Creates and opens the audio hardware input stream. The stream is closed
+    // by releasing all references to the returned object.
+    virtual status_t openInputStream(
+            audio_io_handle_t handle,
+            audio_devices_t devices,
+            struct audio_config *config,
+            audio_input_flags_t flags,
+            const char *address,
+            audio_source_t source,
+            sp<StreamInHalInterface> *inStream);
+
+    // Returns whether createAudioPatch and releaseAudioPatch operations are supported.
+    virtual status_t supportsAudioPatches(bool *supportsPatches);
+
+    // Creates an audio patch between several source and sink ports.
+    virtual status_t createAudioPatch(
+            unsigned int num_sources,
+            const struct audio_port_config *sources,
+            unsigned int num_sinks,
+            const struct audio_port_config *sinks,
+            audio_patch_handle_t *patch);
+
+    // Releases an audio patch.
+    virtual status_t releaseAudioPatch(audio_patch_handle_t patch);
+
+    // Fills the list of supported attributes for a given audio port.
+    virtual status_t getAudioPort(struct audio_port *port);
+
+    // Set audio port configuration.
+    virtual status_t setAudioPortConfig(const struct audio_port_config *config);
+
+    virtual status_t dump(int fd);
+
+    void closeOutputStream(struct audio_stream_out *stream_out);
+    void closeInputStream(struct audio_stream_in *stream_in);
+
+  private:
+    audio_hw_device_t *mDev;
+
+    friend class DevicesFactoryHalLocal;
+
+    // Can not be constructed directly by clients.
+    explicit DeviceHalLocal(audio_hw_device_t *dev);
+
+    // The destructor automatically closes the device.
+    virtual ~DeviceHalLocal();
+
+    uint32_t version() const { return mDev->common.version; }
+};
+
+} // namespace android
+
+#endif // ANDROID_HARDWARE_DEVICE_HAL_LOCAL_H
diff --git a/media/libaudiohal/DevicesFactoryHalHidl.cpp b/media/libaudiohal/DevicesFactoryHalHidl.cpp
new file mode 100644
index 0000000..758a5805
--- /dev/null
+++ b/media/libaudiohal/DevicesFactoryHalHidl.cpp
@@ -0,0 +1,99 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <string.h>
+
+#define LOG_TAG "DevicesFactoryHalHidl"
+//#define LOG_NDEBUG 0
+
+#include <android/hardware/audio/2.0/IDevice.h>
+#include <media/audiohal/hidl/HalDeathHandler.h>
+#include <utils/Log.h>
+
+#include "ConversionHelperHidl.h"
+#include "DeviceHalHidl.h"
+#include "DevicesFactoryHalHidl.h"
+
+using ::android::hardware::audio::V2_0::IDevice;
+using ::android::hardware::audio::V2_0::Result;
+using ::android::hardware::Return;
+
+namespace android {
+
+// static
+sp<DevicesFactoryHalInterface> DevicesFactoryHalInterface::create() {
+    return new DevicesFactoryHalHidl();
+}
+
+DevicesFactoryHalHidl::DevicesFactoryHalHidl() {
+    mDevicesFactory = IDevicesFactory::getService();
+    if (mDevicesFactory != 0) {
+        // It is assumed that DevicesFactory is owned by AudioFlinger
+        // and thus have the same lifespan.
+        mDevicesFactory->linkToDeath(HalDeathHandler::getInstance(), 0 /*cookie*/);
+    } else {
+        LOG_ALWAYS_FATAL("Failed to obtain IDevicesFactory service");
+    }
+}
+
+DevicesFactoryHalHidl::~DevicesFactoryHalHidl() {
+}
+
+// static
+status_t DevicesFactoryHalHidl::nameFromHal(const char *name, IDevicesFactory::Device *device) {
+    if (strcmp(name, AUDIO_HARDWARE_MODULE_ID_PRIMARY) == 0) {
+        *device = IDevicesFactory::Device::PRIMARY;
+        return OK;
+    } else if(strcmp(name, AUDIO_HARDWARE_MODULE_ID_A2DP) == 0) {
+        *device = IDevicesFactory::Device::A2DP;
+        return OK;
+    } else if(strcmp(name, AUDIO_HARDWARE_MODULE_ID_USB) == 0) {
+        *device = IDevicesFactory::Device::USB;
+        return OK;
+    } else if(strcmp(name, AUDIO_HARDWARE_MODULE_ID_REMOTE_SUBMIX) == 0) {
+        *device = IDevicesFactory::Device::R_SUBMIX;
+        return OK;
+    } else if(strcmp(name, AUDIO_HARDWARE_MODULE_ID_STUB) == 0) {
+        *device = IDevicesFactory::Device::STUB;
+        return OK;
+    }
+    ALOGE("Invalid device name %s", name);
+    return BAD_VALUE;
+}
+
+status_t DevicesFactoryHalHidl::openDevice(const char *name, sp<DeviceHalInterface> *device) {
+    if (mDevicesFactory == 0) return NO_INIT;
+    IDevicesFactory::Device hidlDevice;
+    status_t status = nameFromHal(name, &hidlDevice);
+    if (status != OK) return status;
+    Result retval = Result::NOT_INITIALIZED;
+    Return<void> ret = mDevicesFactory->openDevice(
+            hidlDevice,
+            [&](Result r, const sp<IDevice>& result) {
+                retval = r;
+                if (retval == Result::OK) {
+                    *device = new DeviceHalHidl(result);
+                }
+            });
+    if (ret.isOk()) {
+        if (retval == Result::OK) return OK;
+        else if (retval == Result::INVALID_ARGUMENTS) return BAD_VALUE;
+        else return NO_INIT;
+    }
+    return FAILED_TRANSACTION;
+}
+
+} // namespace android
diff --git a/media/libaudiohal/DevicesFactoryHalHidl.h b/media/libaudiohal/DevicesFactoryHalHidl.h
new file mode 100644
index 0000000..a26dec1
--- /dev/null
+++ b/media/libaudiohal/DevicesFactoryHalHidl.h
@@ -0,0 +1,53 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_DEVICES_FACTORY_HAL_HIDL_H
+#define ANDROID_HARDWARE_DEVICES_FACTORY_HAL_HIDL_H
+
+#include <android/hardware/audio/2.0/IDevicesFactory.h>
+#include <media/audiohal/DevicesFactoryHalInterface.h>
+#include <utils/Errors.h>
+#include <utils/RefBase.h>
+
+#include "DeviceHalHidl.h"
+
+using ::android::hardware::audio::V2_0::IDevicesFactory;
+
+namespace android {
+
+class DevicesFactoryHalHidl : public DevicesFactoryHalInterface
+{
+  public:
+    // Opens a device with the specified name. To close the device, it is
+    // necessary to release references to the returned object.
+    virtual status_t openDevice(const char *name, sp<DeviceHalInterface> *device);
+
+  private:
+    friend class DevicesFactoryHalInterface;
+
+    sp<IDevicesFactory> mDevicesFactory;
+
+    static status_t nameFromHal(const char *name, IDevicesFactory::Device *device);
+
+    // Can not be constructed directly by clients.
+    DevicesFactoryHalHidl();
+
+    virtual ~DevicesFactoryHalHidl();
+};
+
+} // namespace android
+
+#endif // ANDROID_HARDWARE_DEVICES_FACTORY_HAL_HIDL_H
diff --git a/media/libaudiohal/DevicesFactoryHalLocal.cpp b/media/libaudiohal/DevicesFactoryHalLocal.cpp
new file mode 100644
index 0000000..cd9a9e7
--- /dev/null
+++ b/media/libaudiohal/DevicesFactoryHalLocal.cpp
@@ -0,0 +1,74 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "DevicesFactoryHalLocal"
+//#define LOG_NDEBUG 0
+
+#include <string.h>
+
+#include <hardware/audio.h>
+#include <utils/Log.h>
+
+#include "DeviceHalLocal.h"
+#include "DevicesFactoryHalLocal.h"
+
+namespace android {
+
+// static
+sp<DevicesFactoryHalInterface> DevicesFactoryHalInterface::create() {
+    return new DevicesFactoryHalLocal();
+}
+
+static status_t load_audio_interface(const char *if_name, audio_hw_device_t **dev)
+{
+    const hw_module_t *mod;
+    int rc;
+
+    rc = hw_get_module_by_class(AUDIO_HARDWARE_MODULE_ID, if_name, &mod);
+    if (rc) {
+        ALOGE("%s couldn't load audio hw module %s.%s (%s)", __func__,
+                AUDIO_HARDWARE_MODULE_ID, if_name, strerror(-rc));
+        goto out;
+    }
+    rc = audio_hw_device_open(mod, dev);
+    if (rc) {
+        ALOGE("%s couldn't open audio hw device in %s.%s (%s)", __func__,
+                AUDIO_HARDWARE_MODULE_ID, if_name, strerror(-rc));
+        goto out;
+    }
+    if ((*dev)->common.version < AUDIO_DEVICE_API_VERSION_MIN) {
+        ALOGE("%s wrong audio hw device version %04x", __func__, (*dev)->common.version);
+        rc = BAD_VALUE;
+        audio_hw_device_close(*dev);
+        goto out;
+    }
+    return OK;
+
+out:
+    *dev = NULL;
+    return rc;
+}
+
+status_t DevicesFactoryHalLocal::openDevice(const char *name, sp<DeviceHalInterface> *device) {
+    audio_hw_device_t *dev;
+    status_t rc = load_audio_interface(name, &dev);
+    if (rc == OK) {
+        *device = new DeviceHalLocal(dev);
+    }
+    return rc;
+}
+
+} // namespace android
diff --git a/media/libaudiohal/DevicesFactoryHalLocal.h b/media/libaudiohal/DevicesFactoryHalLocal.h
new file mode 100644
index 0000000..58ce4ff
--- /dev/null
+++ b/media/libaudiohal/DevicesFactoryHalLocal.h
@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_DEVICES_FACTORY_HAL_LOCAL_H
+#define ANDROID_HARDWARE_DEVICES_FACTORY_HAL_LOCAL_H
+
+#include <media/audiohal/DevicesFactoryHalInterface.h>
+#include <utils/Errors.h>
+#include <utils/RefBase.h>
+
+#include "DeviceHalLocal.h"
+
+namespace android {
+
+class DevicesFactoryHalLocal : public DevicesFactoryHalInterface
+{
+  public:
+    // Opens a device with the specified name. To close the device, it is
+    // necessary to release references to the returned object.
+    virtual status_t openDevice(const char *name, sp<DeviceHalInterface> *device);
+
+  private:
+    friend class DevicesFactoryHalInterface;
+
+    // Can not be constructed directly by clients.
+    DevicesFactoryHalLocal() {}
+
+    virtual ~DevicesFactoryHalLocal() {}
+};
+
+} // namespace android
+
+#endif // ANDROID_HARDWARE_DEVICES_FACTORY_HAL_LOCAL_H
diff --git a/media/libaudiohal/EffectBufferHalHidl.cpp b/media/libaudiohal/EffectBufferHalHidl.cpp
new file mode 100644
index 0000000..d6a41a2
--- /dev/null
+++ b/media/libaudiohal/EffectBufferHalHidl.cpp
@@ -0,0 +1,138 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <atomic>
+
+#define LOG_TAG "EffectBufferHalHidl"
+//#define LOG_NDEBUG 0
+
+#include <android/hidl/allocator/1.0/IAllocator.h>
+#include <hidlmemory/mapping.h>
+#include <utils/Log.h>
+
+#include "ConversionHelperHidl.h"
+#include "EffectBufferHalHidl.h"
+
+using ::android::hardware::Return;
+using ::android::hidl::allocator::V1_0::IAllocator;
+
+namespace android {
+
+// static
+uint64_t EffectBufferHalHidl::makeUniqueId() {
+    static std::atomic<uint64_t> counter{1};
+    return counter++;
+}
+
+// static
+status_t EffectBufferHalInterface::allocate(
+        size_t size, sp<EffectBufferHalInterface>* buffer) {
+    return mirror(nullptr, size, buffer);
+}
+
+// static
+status_t EffectBufferHalInterface::mirror(
+        void* external, size_t size, sp<EffectBufferHalInterface>* buffer) {
+    sp<EffectBufferHalInterface> tempBuffer = new EffectBufferHalHidl(size);
+    status_t result = reinterpret_cast<EffectBufferHalHidl*>(tempBuffer.get())->init();
+    if (result == OK) {
+        tempBuffer->setExternalData(external);
+        *buffer = tempBuffer;
+    }
+    return result;
+}
+
+EffectBufferHalHidl::EffectBufferHalHidl(size_t size)
+        : mBufferSize(size), mExternalData(nullptr), mAudioBuffer{0, {nullptr}} {
+    mHidlBuffer.id = makeUniqueId();
+    mHidlBuffer.frameCount = 0;
+}
+
+EffectBufferHalHidl::~EffectBufferHalHidl() {
+}
+
+status_t EffectBufferHalHidl::init() {
+    sp<IAllocator> ashmem = IAllocator::getService("ashmem");
+    if (ashmem == 0) {
+        ALOGE("Failed to retrieve ashmem allocator service");
+        return NO_INIT;
+    }
+    status_t retval = NO_MEMORY;
+    Return<void> result = ashmem->allocate(
+            mBufferSize,
+            [&](bool success, const hidl_memory& memory) {
+                if (success) {
+                    mHidlBuffer.data = memory;
+                    retval = OK;
+                }
+            });
+    if (result.isOk() && retval == OK) {
+        mMemory = hardware::mapMemory(mHidlBuffer.data);
+        if (mMemory != 0) {
+            mMemory->update();
+            mAudioBuffer.raw = static_cast<void*>(mMemory->getPointer());
+            memset(mAudioBuffer.raw, 0, mMemory->getSize());
+            mMemory->commit();
+        } else {
+            ALOGE("Failed to map allocated ashmem");
+            retval = NO_MEMORY;
+        }
+    } else {
+        ALOGE("Failed to allocate %d bytes from ashmem", (int)mBufferSize);
+    }
+    return result.isOk() ? retval : FAILED_TRANSACTION;
+}
+
+audio_buffer_t* EffectBufferHalHidl::audioBuffer() {
+    return &mAudioBuffer;
+}
+
+void* EffectBufferHalHidl::externalData() const {
+    return mExternalData;
+}
+
+void EffectBufferHalHidl::setFrameCount(size_t frameCount) {
+    mHidlBuffer.frameCount = frameCount;
+    mAudioBuffer.frameCount = frameCount;
+}
+
+void EffectBufferHalHidl::setExternalData(void* external) {
+    mExternalData = external;
+}
+
+void EffectBufferHalHidl::update() {
+    update(mBufferSize);
+}
+
+void EffectBufferHalHidl::commit() {
+    commit(mBufferSize);
+}
+
+void EffectBufferHalHidl::update(size_t size) {
+    if (mExternalData == nullptr) return;
+    mMemory->update();
+    if (size > mBufferSize) size = mBufferSize;
+    memcpy(mAudioBuffer.raw, mExternalData, size);
+    mMemory->commit();
+}
+
+void EffectBufferHalHidl::commit(size_t size) {
+    if (mExternalData == nullptr) return;
+    if (size > mBufferSize) size = mBufferSize;
+    memcpy(mExternalData, mAudioBuffer.raw, size);
+}
+
+} // namespace android
diff --git a/media/libaudiohal/EffectBufferHalHidl.h b/media/libaudiohal/EffectBufferHalHidl.h
new file mode 100644
index 0000000..6e9fd0b
--- /dev/null
+++ b/media/libaudiohal/EffectBufferHalHidl.h
@@ -0,0 +1,69 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_EFFECT_BUFFER_HAL_HIDL_H
+#define ANDROID_HARDWARE_EFFECT_BUFFER_HAL_HIDL_H
+
+#include <android/hardware/audio/effect/2.0/types.h>
+#include <android/hidl/memory/1.0/IMemory.h>
+#include <hidl/HidlSupport.h>
+#include <media/audiohal/EffectBufferHalInterface.h>
+#include <system/audio_effect.h>
+
+using android::hardware::audio::effect::V2_0::AudioBuffer;
+using android::hardware::hidl_memory;
+using android::hidl::memory::V1_0::IMemory;
+
+namespace android {
+
+class EffectBufferHalHidl : public EffectBufferHalInterface
+{
+  public:
+    virtual audio_buffer_t* audioBuffer();
+    virtual void* externalData() const;
+
+    virtual void setExternalData(void* external);
+    virtual void setFrameCount(size_t frameCount);
+
+    virtual void update();
+    virtual void commit();
+    virtual void update(size_t size);
+    virtual void commit(size_t size);
+
+    const AudioBuffer& hidlBuffer() const { return mHidlBuffer; }
+
+  private:
+    friend class EffectBufferHalInterface;
+
+    static uint64_t makeUniqueId();
+
+    const size_t mBufferSize;
+    void* mExternalData;
+    AudioBuffer mHidlBuffer;
+    sp<IMemory> mMemory;
+    audio_buffer_t mAudioBuffer;
+
+    // Can not be constructed directly by clients.
+    explicit EffectBufferHalHidl(size_t size);
+
+    virtual ~EffectBufferHalHidl();
+
+    status_t init();
+};
+
+} // namespace android
+
+#endif // ANDROID_HARDWARE_EFFECT_BUFFER_HAL_HIDL_H
diff --git a/media/libaudiohal/EffectBufferHalLocal.cpp b/media/libaudiohal/EffectBufferHalLocal.cpp
new file mode 100644
index 0000000..9fe2c7b
--- /dev/null
+++ b/media/libaudiohal/EffectBufferHalLocal.cpp
@@ -0,0 +1,84 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "EffectBufferHalLocal"
+//#define LOG_NDEBUG 0
+
+#include <utils/Log.h>
+
+#include "EffectBufferHalLocal.h"
+
+namespace android {
+
+// static
+status_t EffectBufferHalInterface::allocate(
+        size_t size, sp<EffectBufferHalInterface>* buffer) {
+    *buffer = new EffectBufferHalLocal(size);
+    return OK;
+}
+
+// static
+status_t EffectBufferHalInterface::mirror(
+        void* external, size_t size, sp<EffectBufferHalInterface>* buffer) {
+    *buffer = new EffectBufferHalLocal(external, size);
+    return OK;
+}
+
+EffectBufferHalLocal::EffectBufferHalLocal(size_t size)
+        : mOwnBuffer(new uint8_t[size]),
+          mBufferSize(size),
+          mAudioBuffer{0, {mOwnBuffer.get()}} {
+}
+
+EffectBufferHalLocal::EffectBufferHalLocal(void* external, size_t size)
+        : mOwnBuffer(nullptr),
+          mBufferSize(size),
+          mAudioBuffer{0, {external}} {
+}
+
+EffectBufferHalLocal::~EffectBufferHalLocal() {
+}
+
+audio_buffer_t* EffectBufferHalLocal::audioBuffer() {
+    return &mAudioBuffer;
+}
+
+void* EffectBufferHalLocal::externalData() const {
+    return mAudioBuffer.raw;
+}
+
+void EffectBufferHalLocal::setFrameCount(size_t frameCount) {
+    mAudioBuffer.frameCount = frameCount;
+}
+
+void EffectBufferHalLocal::setExternalData(void* external) {
+    ALOGE_IF(mOwnBuffer != nullptr, "Attempt to set external data for allocated buffer");
+    mAudioBuffer.raw = external;
+}
+
+void EffectBufferHalLocal::update() {
+}
+
+void EffectBufferHalLocal::commit() {
+}
+
+void EffectBufferHalLocal::update(size_t) {
+}
+
+void EffectBufferHalLocal::commit(size_t) {
+}
+
+} // namespace android
diff --git a/media/libaudiohal/EffectBufferHalLocal.h b/media/libaudiohal/EffectBufferHalLocal.h
new file mode 100644
index 0000000..202d878
--- /dev/null
+++ b/media/libaudiohal/EffectBufferHalLocal.h
@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_EFFECT_BUFFER_HAL_LOCAL_H
+#define ANDROID_HARDWARE_EFFECT_BUFFER_HAL_LOCAL_H
+
+#include <memory>
+
+#include <media/audiohal/EffectBufferHalInterface.h>
+#include <system/audio_effect.h>
+
+namespace android {
+
+class EffectBufferHalLocal : public EffectBufferHalInterface
+{
+  public:
+    virtual audio_buffer_t* audioBuffer();
+    virtual void* externalData() const;
+
+    virtual void setExternalData(void* external);
+    virtual void setFrameCount(size_t frameCount);
+
+    virtual void update();
+    virtual void commit();
+    virtual void update(size_t size);
+    virtual void commit(size_t size);
+
+  private:
+    friend class EffectBufferHalInterface;
+
+    std::unique_ptr<uint8_t[]> mOwnBuffer;
+    const size_t mBufferSize;
+    audio_buffer_t mAudioBuffer;
+
+    // Can not be constructed directly by clients.
+    explicit EffectBufferHalLocal(size_t size);
+    EffectBufferHalLocal(void* external, size_t size);
+
+    virtual ~EffectBufferHalLocal();
+
+    status_t init();
+};
+
+} // namespace android
+
+#endif // ANDROID_HARDWARE_EFFECT_BUFFER_HAL_LOCAL_H
diff --git a/media/libaudiohal/EffectHalHidl.cpp b/media/libaudiohal/EffectHalHidl.cpp
new file mode 100644
index 0000000..0babfda
--- /dev/null
+++ b/media/libaudiohal/EffectHalHidl.cpp
@@ -0,0 +1,319 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "EffectHalHidl"
+//#define LOG_NDEBUG 0
+
+#include <hwbinder/IPCThreadState.h>
+#include <media/EffectsFactoryApi.h>
+#include <utils/Log.h>
+
+#include "ConversionHelperHidl.h"
+#include "EffectBufferHalHidl.h"
+#include "EffectHalHidl.h"
+#include "HidlUtils.h"
+
+using ::android::hardware::audio::effect::V2_0::AudioBuffer;
+using ::android::hardware::audio::effect::V2_0::EffectBufferAccess;
+using ::android::hardware::audio::effect::V2_0::EffectConfigParameters;
+using ::android::hardware::audio::effect::V2_0::MessageQueueFlagBits;
+using ::android::hardware::audio::effect::V2_0::Result;
+using ::android::hardware::audio::common::V2_0::AudioChannelMask;
+using ::android::hardware::audio::common::V2_0::AudioFormat;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::MQDescriptorSync;
+using ::android::hardware::Return;
+
+namespace android {
+
+EffectHalHidl::EffectHalHidl(const sp<IEffect>& effect, uint64_t effectId)
+        : mEffect(effect), mEffectId(effectId), mBuffersChanged(true) {
+}
+
+EffectHalHidl::~EffectHalHidl() {
+    if (mEffect != 0) {
+        close();
+        mEffect.clear();
+        hardware::IPCThreadState::self()->flushCommands();
+    }
+}
+
+// static
+void EffectHalHidl::effectDescriptorToHal(
+        const EffectDescriptor& descriptor, effect_descriptor_t* halDescriptor) {
+    HidlUtils::uuidToHal(descriptor.type, &halDescriptor->type);
+    HidlUtils::uuidToHal(descriptor.uuid, &halDescriptor->uuid);
+    halDescriptor->flags = static_cast<uint32_t>(descriptor.flags);
+    halDescriptor->cpuLoad = descriptor.cpuLoad;
+    halDescriptor->memoryUsage = descriptor.memoryUsage;
+    memcpy(halDescriptor->name, descriptor.name.data(), descriptor.name.size());
+    memcpy(halDescriptor->implementor,
+            descriptor.implementor.data(), descriptor.implementor.size());
+}
+
+// TODO(mnaganov): These buffer conversion functions should be shared with Effect wrapper
+// via HidlUtils. Move them there when hardware/interfaces will get un-frozen again.
+
+// static
+void EffectHalHidl::effectBufferConfigFromHal(
+        const buffer_config_t& halConfig, EffectBufferConfig* config) {
+    config->samplingRateHz = halConfig.samplingRate;
+    config->channels = AudioChannelMask(halConfig.channels);
+    config->format = AudioFormat(halConfig.format);
+    config->accessMode = EffectBufferAccess(halConfig.accessMode);
+    config->mask = EffectConfigParameters(halConfig.mask);
+}
+
+// static
+void EffectHalHidl::effectBufferConfigToHal(
+        const EffectBufferConfig& config, buffer_config_t* halConfig) {
+    halConfig->buffer.frameCount = 0;
+    halConfig->buffer.raw = NULL;
+    halConfig->samplingRate = config.samplingRateHz;
+    halConfig->channels = static_cast<uint32_t>(config.channels);
+    halConfig->bufferProvider.cookie = NULL;
+    halConfig->bufferProvider.getBuffer = NULL;
+    halConfig->bufferProvider.releaseBuffer = NULL;
+    halConfig->format = static_cast<uint8_t>(config.format);
+    halConfig->accessMode = static_cast<uint8_t>(config.accessMode);
+    halConfig->mask = static_cast<uint8_t>(config.mask);
+}
+
+// static
+void EffectHalHidl::effectConfigFromHal(const effect_config_t& halConfig, EffectConfig* config) {
+    effectBufferConfigFromHal(halConfig.inputCfg, &config->inputCfg);
+    effectBufferConfigFromHal(halConfig.outputCfg, &config->outputCfg);
+}
+
+// static
+void EffectHalHidl::effectConfigToHal(const EffectConfig& config, effect_config_t* halConfig) {
+    effectBufferConfigToHal(config.inputCfg, &halConfig->inputCfg);
+    effectBufferConfigToHal(config.outputCfg, &halConfig->outputCfg);
+}
+
+// static
+status_t EffectHalHidl::analyzeResult(const Result& result) {
+    switch (result) {
+        case Result::OK: return OK;
+        case Result::INVALID_ARGUMENTS: return BAD_VALUE;
+        case Result::INVALID_STATE: return NOT_ENOUGH_DATA;
+        case Result::NOT_INITIALIZED: return NO_INIT;
+        case Result::NOT_SUPPORTED: return INVALID_OPERATION;
+        case Result::RESULT_TOO_BIG: return NO_MEMORY;
+        default: return NO_INIT;
+    }
+}
+
+status_t EffectHalHidl::setInBuffer(const sp<EffectBufferHalInterface>& buffer) {
+    if (mInBuffer == 0 || buffer->audioBuffer() != mInBuffer->audioBuffer()) {
+        mBuffersChanged = true;
+    }
+    mInBuffer = buffer;
+    return OK;
+}
+
+status_t EffectHalHidl::setOutBuffer(const sp<EffectBufferHalInterface>& buffer) {
+    if (mOutBuffer == 0 || buffer->audioBuffer() != mOutBuffer->audioBuffer()) {
+        mBuffersChanged = true;
+    }
+    mOutBuffer = buffer;
+    return OK;
+}
+
+status_t EffectHalHidl::process() {
+    return processImpl(static_cast<uint32_t>(MessageQueueFlagBits::REQUEST_PROCESS));
+}
+
+status_t EffectHalHidl::processReverse() {
+    return processImpl(static_cast<uint32_t>(MessageQueueFlagBits::REQUEST_PROCESS_REVERSE));
+}
+
+status_t EffectHalHidl::prepareForProcessing() {
+    std::unique_ptr<StatusMQ> tempStatusMQ;
+    Result retval;
+    Return<void> ret = mEffect->prepareForProcessing(
+            [&](Result r, const MQDescriptorSync<Result>& statusMQ) {
+                retval = r;
+                if (retval == Result::OK) {
+                    tempStatusMQ.reset(new StatusMQ(statusMQ));
+                    if (tempStatusMQ->isValid() && tempStatusMQ->getEventFlagWord()) {
+                        EventFlag::createEventFlag(tempStatusMQ->getEventFlagWord(), &mEfGroup);
+                    }
+                }
+            });
+    if (!ret.isOk() || retval != Result::OK) {
+        return ret.isOk() ? analyzeResult(retval) : FAILED_TRANSACTION;
+    }
+    if (!tempStatusMQ || !tempStatusMQ->isValid() || !mEfGroup) {
+        ALOGE_IF(!tempStatusMQ, "Failed to obtain status message queue for effects");
+        ALOGE_IF(tempStatusMQ && !tempStatusMQ->isValid(),
+                "Status message queue for effects is invalid");
+        ALOGE_IF(!mEfGroup, "Event flag creation for effects failed");
+        return NO_INIT;
+    }
+    mStatusMQ = std::move(tempStatusMQ);
+    return OK;
+}
+
+status_t EffectHalHidl::processImpl(uint32_t mqFlag) {
+    if (mEffect == 0 || mInBuffer == 0 || mOutBuffer == 0) return NO_INIT;
+    status_t status;
+    if (!mStatusMQ && (status = prepareForProcessing()) != OK) {
+        return status;
+    }
+    if (mBuffersChanged && (status = setProcessBuffers()) != OK) {
+        return status;
+    }
+    // The data is already in the buffers, just need to flush it and wake up the server side.
+    std::atomic_thread_fence(std::memory_order_release);
+    mEfGroup->wake(mqFlag);
+    uint32_t efState = 0;
+retry:
+    status_t ret = mEfGroup->wait(
+            static_cast<uint32_t>(MessageQueueFlagBits::DONE_PROCESSING), &efState);
+    if (efState & static_cast<uint32_t>(MessageQueueFlagBits::DONE_PROCESSING)) {
+        Result retval = Result::NOT_INITIALIZED;
+        mStatusMQ->read(&retval);
+        if (retval == Result::OK || retval == Result::INVALID_STATE) {
+            // Sync back the changed contents of the buffer.
+            std::atomic_thread_fence(std::memory_order_acquire);
+        }
+        return analyzeResult(retval);
+    }
+    if (ret == -EAGAIN || ret == -EINTR) {
+        // Spurious wakeup. This normally retries no more than once.
+        goto retry;
+    }
+    return ret;
+}
+
+status_t EffectHalHidl::setProcessBuffers() {
+    Return<Result> ret = mEffect->setProcessBuffers(
+            reinterpret_cast<EffectBufferHalHidl*>(mInBuffer.get())->hidlBuffer(),
+            reinterpret_cast<EffectBufferHalHidl*>(mOutBuffer.get())->hidlBuffer());
+    if (ret.isOk() && ret == Result::OK) {
+        mBuffersChanged = false;
+        return OK;
+    }
+    return ret.isOk() ? analyzeResult(ret) : FAILED_TRANSACTION;
+}
+
+status_t EffectHalHidl::command(uint32_t cmdCode, uint32_t cmdSize, void *pCmdData,
+        uint32_t *replySize, void *pReplyData) {
+    if (mEffect == 0) return NO_INIT;
+
+    // Special cases.
+    if (cmdCode == EFFECT_CMD_SET_CONFIG || cmdCode == EFFECT_CMD_SET_CONFIG_REVERSE) {
+        return setConfigImpl(cmdCode, cmdSize, pCmdData, replySize, pReplyData);
+    } else if (cmdCode == EFFECT_CMD_GET_CONFIG || cmdCode == EFFECT_CMD_GET_CONFIG_REVERSE) {
+        return getConfigImpl(cmdCode, replySize, pReplyData);
+    }
+
+    // Common case.
+    hidl_vec<uint8_t> hidlData;
+    if (pCmdData != nullptr && cmdSize > 0) {
+        hidlData.setToExternal(reinterpret_cast<uint8_t*>(pCmdData), cmdSize);
+    }
+    status_t status;
+    uint32_t replySizeStub = 0;
+    if (replySize == nullptr || pReplyData == nullptr) replySize = &replySizeStub;
+    Return<void> ret = mEffect->command(cmdCode, hidlData, *replySize,
+            [&](int32_t s, const hidl_vec<uint8_t>& result) {
+                status = s;
+                if (status == 0) {
+                    if (*replySize > result.size()) *replySize = result.size();
+                    if (pReplyData != nullptr && *replySize > 0) {
+                        memcpy(pReplyData, &result[0], *replySize);
+                    }
+                }
+            });
+    return ret.isOk() ? status : FAILED_TRANSACTION;
+}
+
+status_t EffectHalHidl::getDescriptor(effect_descriptor_t *pDescriptor) {
+    if (mEffect == 0) return NO_INIT;
+    Result retval = Result::NOT_INITIALIZED;
+    Return<void> ret = mEffect->getDescriptor(
+            [&](Result r, const EffectDescriptor& result) {
+                retval = r;
+                if (retval == Result::OK) {
+                    effectDescriptorToHal(result, pDescriptor);
+                }
+            });
+    return ret.isOk() ? analyzeResult(retval) : FAILED_TRANSACTION;
+}
+
+status_t EffectHalHidl::close() {
+    if (mEffect == 0) return NO_INIT;
+    Return<Result> ret = mEffect->close();
+    return ret.isOk() ? analyzeResult(ret) : FAILED_TRANSACTION;
+}
+
+status_t EffectHalHidl::getConfigImpl(
+        uint32_t cmdCode, uint32_t *replySize, void *pReplyData) {
+    if (replySize == NULL || *replySize != sizeof(effect_config_t) || pReplyData == NULL) {
+        return BAD_VALUE;
+    }
+    status_t result = FAILED_TRANSACTION;
+    Return<void> ret;
+    if (cmdCode == EFFECT_CMD_GET_CONFIG) {
+        ret = mEffect->getConfig([&] (Result r, const EffectConfig &hidlConfig) {
+            result = analyzeResult(r);
+            if (r == Result::OK) {
+                effectConfigToHal(hidlConfig, static_cast<effect_config_t*>(pReplyData));
+            }
+        });
+    } else {
+        ret = mEffect->getConfigReverse([&] (Result r, const EffectConfig &hidlConfig) {
+            result = analyzeResult(r);
+            if (r == Result::OK) {
+                effectConfigToHal(hidlConfig, static_cast<effect_config_t*>(pReplyData));
+            }
+        });
+    }
+    if (!ret.isOk()) {
+        result = FAILED_TRANSACTION;
+    }
+    return result;
+}
+
+status_t EffectHalHidl::setConfigImpl(
+        uint32_t cmdCode, uint32_t cmdSize, void *pCmdData, uint32_t *replySize, void *pReplyData) {
+    if (pCmdData == NULL || cmdSize != sizeof(effect_config_t) ||
+            replySize == NULL || *replySize != sizeof(int32_t) || pReplyData == NULL) {
+        return BAD_VALUE;
+    }
+    const effect_config_t *halConfig = static_cast<effect_config_t*>(pCmdData);
+    if (halConfig->inputCfg.bufferProvider.getBuffer != NULL ||
+            halConfig->inputCfg.bufferProvider.releaseBuffer != NULL ||
+            halConfig->outputCfg.bufferProvider.getBuffer != NULL ||
+            halConfig->outputCfg.bufferProvider.releaseBuffer != NULL) {
+        ALOGE("Buffer provider callbacks are not supported");
+    }
+    EffectConfig hidlConfig;
+    effectConfigFromHal(*halConfig, &hidlConfig);
+    Return<Result> ret = cmdCode == EFFECT_CMD_SET_CONFIG ?
+            mEffect->setConfig(hidlConfig, nullptr, nullptr) :
+            mEffect->setConfigReverse(hidlConfig, nullptr, nullptr);
+    status_t result = FAILED_TRANSACTION;
+    if (ret.isOk()) {
+        result = analyzeResult(ret);
+        *static_cast<int32_t*>(pReplyData) = result;
+    }
+    return result;
+}
+
+} // namespace android
diff --git a/media/libaudiohal/EffectHalHidl.h b/media/libaudiohal/EffectHalHidl.h
new file mode 100644
index 0000000..c8db36f
--- /dev/null
+++ b/media/libaudiohal/EffectHalHidl.h
@@ -0,0 +1,104 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_EFFECT_HAL_HIDL_H
+#define ANDROID_HARDWARE_EFFECT_HAL_HIDL_H
+
+#include <android/hardware/audio/effect/2.0/IEffect.h>
+#include <media/audiohal/EffectHalInterface.h>
+#include <fmq/EventFlag.h>
+#include <fmq/MessageQueue.h>
+#include <system/audio_effect.h>
+
+using ::android::hardware::audio::effect::V2_0::EffectBufferConfig;
+using ::android::hardware::audio::effect::V2_0::EffectConfig;
+using ::android::hardware::audio::effect::V2_0::EffectDescriptor;
+using ::android::hardware::audio::effect::V2_0::IEffect;
+using ::android::hardware::EventFlag;
+using ::android::hardware::MessageQueue;
+
+namespace android {
+
+class EffectHalHidl : public EffectHalInterface
+{
+  public:
+    // Set the input buffer.
+    virtual status_t setInBuffer(const sp<EffectBufferHalInterface>& buffer);
+
+    // Set the output buffer.
+    virtual status_t setOutBuffer(const sp<EffectBufferHalInterface>& buffer);
+
+    // Effect process function.
+    virtual status_t process();
+
+    // Process reverse stream function. This function is used to pass
+    // a reference stream to the effect engine.
+    virtual status_t processReverse();
+
+    // Send a command and receive a response to/from effect engine.
+    virtual status_t command(uint32_t cmdCode, uint32_t cmdSize, void *pCmdData,
+            uint32_t *replySize, void *pReplyData);
+
+    // Returns the effect descriptor.
+    virtual status_t getDescriptor(effect_descriptor_t *pDescriptor);
+
+    // Free resources on the remote side.
+    virtual status_t close();
+
+    uint64_t effectId() const { return mEffectId; }
+
+    static void effectDescriptorToHal(
+            const EffectDescriptor& descriptor, effect_descriptor_t* halDescriptor);
+
+  private:
+    friend class EffectsFactoryHalHidl;
+    typedef MessageQueue<
+        hardware::audio::effect::V2_0::Result, hardware::kSynchronizedReadWrite> StatusMQ;
+
+    sp<IEffect> mEffect;
+    const uint64_t mEffectId;
+    sp<EffectBufferHalInterface> mInBuffer;
+    sp<EffectBufferHalInterface> mOutBuffer;
+    bool mBuffersChanged;
+    std::unique_ptr<StatusMQ> mStatusMQ;
+    EventFlag* mEfGroup;
+
+    static status_t analyzeResult(const hardware::audio::effect::V2_0::Result& result);
+    static void effectBufferConfigFromHal(
+            const buffer_config_t& halConfig, EffectBufferConfig* config);
+    static void effectBufferConfigToHal(
+            const EffectBufferConfig& config, buffer_config_t* halConfig);
+    static void effectConfigFromHal(const effect_config_t& halConfig, EffectConfig* config);
+    static void effectConfigToHal(const EffectConfig& config, effect_config_t* halConfig);
+
+    // Can not be constructed directly by clients.
+    EffectHalHidl(const sp<IEffect>& effect, uint64_t effectId);
+
+    // The destructor automatically releases the effect.
+    virtual ~EffectHalHidl();
+
+    status_t getConfigImpl(uint32_t cmdCode, uint32_t *replySize, void *pReplyData);
+    status_t prepareForProcessing();
+    status_t processImpl(uint32_t mqFlag);
+    status_t setConfigImpl(
+            uint32_t cmdCode, uint32_t cmdSize, void *pCmdData,
+            uint32_t *replySize, void *pReplyData);
+    status_t setProcessBuffers();
+};
+
+} // namespace android
+
+#endif // ANDROID_HARDWARE_EFFECT_HAL_HIDL_H
diff --git a/media/libaudiohal/EffectHalLocal.cpp b/media/libaudiohal/EffectHalLocal.cpp
new file mode 100644
index 0000000..dd465c3
--- /dev/null
+++ b/media/libaudiohal/EffectHalLocal.cpp
@@ -0,0 +1,83 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "EffectHalLocal"
+//#define LOG_NDEBUG 0
+
+#include <media/EffectsFactoryApi.h>
+#include <utils/Log.h>
+
+#include "EffectHalLocal.h"
+
+namespace android {
+
+EffectHalLocal::EffectHalLocal(effect_handle_t handle)
+        : mHandle(handle) {
+}
+
+EffectHalLocal::~EffectHalLocal() {
+    int status = EffectRelease(mHandle);
+    ALOGW_IF(status, "Error releasing effect %p: %s", mHandle, strerror(-status));
+    mHandle = 0;
+}
+
+status_t EffectHalLocal::setInBuffer(const sp<EffectBufferHalInterface>& buffer) {
+    mInBuffer = buffer;
+    return OK;
+}
+
+status_t EffectHalLocal::setOutBuffer(const sp<EffectBufferHalInterface>& buffer) {
+    mOutBuffer = buffer;
+    return OK;
+}
+
+status_t EffectHalLocal::process() {
+    if (mInBuffer == nullptr || mOutBuffer == nullptr) {
+        ALOGE_IF(mInBuffer == nullptr, "Input buffer not set");
+        ALOGE_IF(mOutBuffer == nullptr, "Output buffer not set");
+        return NO_INIT;
+    }
+    return (*mHandle)->process(mHandle, mInBuffer->audioBuffer(), mOutBuffer->audioBuffer());
+}
+
+status_t EffectHalLocal::processReverse() {
+    if ((*mHandle)->process_reverse != NULL) {
+        if (mInBuffer == nullptr || mOutBuffer == nullptr) {
+            ALOGE_IF(mInBuffer == nullptr, "Input buffer not set");
+            ALOGE_IF(mOutBuffer == nullptr, "Output buffer not set");
+            return NO_INIT;
+        }
+        return (*mHandle)->process_reverse(
+                mHandle, mInBuffer->audioBuffer(), mOutBuffer->audioBuffer());
+    } else {
+        return INVALID_OPERATION;
+    }
+}
+
+status_t EffectHalLocal::command(uint32_t cmdCode, uint32_t cmdSize, void *pCmdData,
+        uint32_t *replySize, void *pReplyData) {
+    return (*mHandle)->command(mHandle, cmdCode, cmdSize, pCmdData, replySize, pReplyData);
+}
+
+status_t EffectHalLocal::getDescriptor(effect_descriptor_t *pDescriptor) {
+    return (*mHandle)->get_descriptor(mHandle, pDescriptor);
+}
+
+status_t EffectHalLocal::close() {
+    return OK;
+}
+
+} // namespace android
diff --git a/media/libaudiohal/EffectHalLocal.h b/media/libaudiohal/EffectHalLocal.h
new file mode 100644
index 0000000..b499462
--- /dev/null
+++ b/media/libaudiohal/EffectHalLocal.h
@@ -0,0 +1,69 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_EFFECT_HAL_LOCAL_H
+#define ANDROID_HARDWARE_EFFECT_HAL_LOCAL_H
+
+#include <hardware/audio_effect.h>
+#include <media/audiohal/EffectHalInterface.h>
+
+namespace android {
+
+class EffectHalLocal : public EffectHalInterface
+{
+  public:
+    // Set the input buffer.
+    virtual status_t setInBuffer(const sp<EffectBufferHalInterface>& buffer);
+
+    // Set the output buffer.
+    virtual status_t setOutBuffer(const sp<EffectBufferHalInterface>& buffer);
+
+    // Effect process function.
+    virtual status_t process();
+
+    // Process reverse stream function. This function is used to pass
+    // a reference stream to the effect engine.
+    virtual status_t processReverse();
+
+    // Send a command and receive a response to/from effect engine.
+    virtual status_t command(uint32_t cmdCode, uint32_t cmdSize, void *pCmdData,
+            uint32_t *replySize, void *pReplyData);
+
+    // Returns the effect descriptor.
+    virtual status_t getDescriptor(effect_descriptor_t *pDescriptor);
+
+    // Free resources on the remote side.
+    virtual status_t close();
+
+    effect_handle_t handle() const { return mHandle; }
+
+  private:
+    effect_handle_t mHandle;
+    sp<EffectBufferHalInterface> mInBuffer;
+    sp<EffectBufferHalInterface> mOutBuffer;
+
+    friend class EffectsFactoryHalLocal;
+
+    // Can not be constructed directly by clients.
+    explicit EffectHalLocal(effect_handle_t handle);
+
+    // The destructor automatically releases the effect.
+    virtual ~EffectHalLocal();
+};
+
+} // namespace android
+
+#endif // ANDROID_HARDWARE_EFFECT_HAL_LOCAL_H
diff --git a/media/libaudiohal/EffectsFactoryHalHidl.cpp b/media/libaudiohal/EffectsFactoryHalHidl.cpp
new file mode 100644
index 0000000..f7dbb9c
--- /dev/null
+++ b/media/libaudiohal/EffectsFactoryHalHidl.cpp
@@ -0,0 +1,146 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "EffectsFactoryHalHidl"
+//#define LOG_NDEBUG 0
+
+#include <cutils/native_handle.h>
+#include <media/EffectsFactoryApi.h>
+
+#include "ConversionHelperHidl.h"
+#include "EffectHalHidl.h"
+#include "EffectsFactoryHalHidl.h"
+#include "HidlUtils.h"
+
+using ::android::hardware::audio::common::V2_0::Uuid;
+using ::android::hardware::audio::effect::V2_0::IEffect;
+using ::android::hardware::audio::effect::V2_0::Result;
+using ::android::hardware::Return;
+
+namespace android {
+
+// static
+sp<EffectsFactoryHalInterface> EffectsFactoryHalInterface::create() {
+    return new EffectsFactoryHalHidl();
+}
+
+// static
+bool EffectsFactoryHalInterface::isNullUuid(const effect_uuid_t *pEffectUuid) {
+    return EffectIsNullUuid(pEffectUuid);
+}
+
+EffectsFactoryHalHidl::EffectsFactoryHalHidl() : ConversionHelperHidl("EffectsFactory") {
+    mEffectsFactory = IEffectsFactory::getService();
+    LOG_ALWAYS_FATAL_IF(mEffectsFactory == 0, "Failed to obtain IEffectsFactory service");
+}
+
+EffectsFactoryHalHidl::~EffectsFactoryHalHidl() {
+}
+
+status_t EffectsFactoryHalHidl::queryAllDescriptors() {
+    if (mEffectsFactory == 0) return NO_INIT;
+    Result retval = Result::NOT_INITIALIZED;
+    Return<void> ret = mEffectsFactory->getAllDescriptors(
+            [&](Result r, const hidl_vec<EffectDescriptor>& result) {
+                retval = r;
+                if (retval == Result::OK) {
+                    mLastDescriptors = result;
+                }
+            });
+    if (ret.isOk()) {
+        return retval == Result::OK ? OK : NO_INIT;
+    }
+    mLastDescriptors.resize(0);
+    return processReturn(__FUNCTION__, ret);
+}
+
+status_t EffectsFactoryHalHidl::queryNumberEffects(uint32_t *pNumEffects) {
+    status_t queryResult = queryAllDescriptors();
+    if (queryResult == OK) {
+        *pNumEffects = mLastDescriptors.size();
+    }
+    return queryResult;
+}
+
+status_t EffectsFactoryHalHidl::getDescriptor(
+        uint32_t index, effect_descriptor_t *pDescriptor) {
+    // TODO: We need somehow to track the changes on the server side
+    // or figure out how to convert everybody to query all the descriptors at once.
+    // TODO: check for nullptr
+    if (mLastDescriptors.size() == 0) {
+        status_t queryResult = queryAllDescriptors();
+        if (queryResult != OK) return queryResult;
+    }
+    if (index >= mLastDescriptors.size()) return NAME_NOT_FOUND;
+    EffectHalHidl::effectDescriptorToHal(mLastDescriptors[index], pDescriptor);
+    return OK;
+}
+
+status_t EffectsFactoryHalHidl::getDescriptor(
+        const effect_uuid_t *pEffectUuid, effect_descriptor_t *pDescriptor) {
+    // TODO: check for nullptr
+    if (mEffectsFactory == 0) return NO_INIT;
+    Uuid hidlUuid;
+    HidlUtils::uuidFromHal(*pEffectUuid, &hidlUuid);
+    Result retval = Result::NOT_INITIALIZED;
+    Return<void> ret = mEffectsFactory->getDescriptor(hidlUuid,
+            [&](Result r, const EffectDescriptor& result) {
+                retval = r;
+                if (retval == Result::OK) {
+                    EffectHalHidl::effectDescriptorToHal(result, pDescriptor);
+                }
+            });
+    if (ret.isOk()) {
+        if (retval == Result::OK) return OK;
+        else if (retval == Result::INVALID_ARGUMENTS) return NAME_NOT_FOUND;
+        else return NO_INIT;
+    }
+    return processReturn(__FUNCTION__, ret);
+}
+
+status_t EffectsFactoryHalHidl::createEffect(
+        const effect_uuid_t *pEffectUuid, int32_t sessionId, int32_t ioId,
+        sp<EffectHalInterface> *effect) {
+    if (mEffectsFactory == 0) return NO_INIT;
+    Uuid hidlUuid;
+    HidlUtils::uuidFromHal(*pEffectUuid, &hidlUuid);
+    Result retval = Result::NOT_INITIALIZED;
+    Return<void> ret = mEffectsFactory->createEffect(
+            hidlUuid, sessionId, ioId,
+            [&](Result r, const sp<IEffect>& result, uint64_t effectId) {
+                retval = r;
+                if (retval == Result::OK) {
+                    *effect = new EffectHalHidl(result, effectId);
+                }
+            });
+    if (ret.isOk()) {
+        if (retval == Result::OK) return OK;
+        else if (retval == Result::INVALID_ARGUMENTS) return NAME_NOT_FOUND;
+        else return NO_INIT;
+    }
+    return processReturn(__FUNCTION__, ret);
+}
+
+status_t EffectsFactoryHalHidl::dumpEffects(int fd) {
+    if (mEffectsFactory == 0) return NO_INIT;
+    native_handle_t* hidlHandle = native_handle_create(1, 0);
+    hidlHandle->data[0] = fd;
+    Return<void> ret = mEffectsFactory->debugDump(hidlHandle);
+    native_handle_delete(hidlHandle);
+    return processReturn(__FUNCTION__, ret);
+}
+
+} // namespace android
diff --git a/media/libaudiohal/EffectsFactoryHalHidl.h b/media/libaudiohal/EffectsFactoryHalHidl.h
new file mode 100644
index 0000000..e89f042
--- /dev/null
+++ b/media/libaudiohal/EffectsFactoryHalHidl.h
@@ -0,0 +1,67 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_EFFECTS_FACTORY_HAL_HIDL_H
+#define ANDROID_HARDWARE_EFFECTS_FACTORY_HAL_HIDL_H
+
+#include <android/hardware/audio/effect/2.0/IEffectsFactory.h>
+#include <android/hardware/audio/effect/2.0/types.h>
+#include <media/audiohal/EffectsFactoryHalInterface.h>
+
+namespace android {
+
+using ::android::hardware::audio::effect::V2_0::EffectDescriptor;
+using ::android::hardware::audio::effect::V2_0::IEffectsFactory;
+using ::android::hardware::hidl_vec;
+
+class EffectsFactoryHalHidl : public EffectsFactoryHalInterface, public ConversionHelperHidl
+{
+  public:
+    // Returns the number of different effects in all loaded libraries.
+    virtual status_t queryNumberEffects(uint32_t *pNumEffects);
+
+    // Returns a descriptor of the next available effect.
+    virtual status_t getDescriptor(uint32_t index,
+            effect_descriptor_t *pDescriptor);
+
+    virtual status_t getDescriptor(const effect_uuid_t *pEffectUuid,
+            effect_descriptor_t *pDescriptor);
+
+    // Creates an effect engine of the specified type.
+    // To release the effect engine, it is necessary to release references
+    // to the returned effect object.
+    virtual status_t createEffect(const effect_uuid_t *pEffectUuid,
+            int32_t sessionId, int32_t ioId,
+            sp<EffectHalInterface> *effect);
+
+    virtual status_t dumpEffects(int fd);
+
+  private:
+    friend class EffectsFactoryHalInterface;
+
+    sp<IEffectsFactory> mEffectsFactory;
+    hidl_vec<EffectDescriptor> mLastDescriptors;
+
+    // Can not be constructed directly by clients.
+    EffectsFactoryHalHidl();
+    virtual ~EffectsFactoryHalHidl();
+
+    status_t queryAllDescriptors();
+};
+
+} // namespace android
+
+#endif // ANDROID_HARDWARE_EFFECTS_FACTORY_HAL_HIDL_H
diff --git a/media/libaudiohal/EffectsFactoryHalLocal.cpp b/media/libaudiohal/EffectsFactoryHalLocal.cpp
new file mode 100644
index 0000000..bbdef5d
--- /dev/null
+++ b/media/libaudiohal/EffectsFactoryHalLocal.cpp
@@ -0,0 +1,63 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <media/EffectsFactoryApi.h>
+
+#include "EffectHalLocal.h"
+#include "EffectsFactoryHalLocal.h"
+
+namespace android {
+
+// static
+sp<EffectsFactoryHalInterface> EffectsFactoryHalInterface::create() {
+    return new EffectsFactoryHalLocal();
+}
+
+// static
+bool EffectsFactoryHalInterface::isNullUuid(const effect_uuid_t *pEffectUuid) {
+    return EffectIsNullUuid(pEffectUuid);
+}
+
+status_t EffectsFactoryHalLocal::queryNumberEffects(uint32_t *pNumEffects) {
+    return EffectQueryNumberEffects(pNumEffects);
+}
+
+status_t EffectsFactoryHalLocal::getDescriptor(
+        uint32_t index, effect_descriptor_t *pDescriptor) {
+    return EffectQueryEffect(index, pDescriptor);
+}
+
+status_t EffectsFactoryHalLocal::getDescriptor(
+        const effect_uuid_t *pEffectUuid, effect_descriptor_t *pDescriptor) {
+    return EffectGetDescriptor(pEffectUuid, pDescriptor);
+}
+
+status_t EffectsFactoryHalLocal::createEffect(
+        const effect_uuid_t *pEffectUuid, int32_t sessionId, int32_t ioId,
+        sp<EffectHalInterface> *effect) {
+    effect_handle_t handle;
+    int result = EffectCreate(pEffectUuid, sessionId, ioId, &handle);
+    if (result == 0) {
+        *effect = new EffectHalLocal(handle);
+    }
+    return result;
+}
+
+status_t EffectsFactoryHalLocal::dumpEffects(int fd) {
+    return EffectDumpEffects(fd);
+}
+
+} // namespace android
diff --git a/media/libaudiohal/EffectsFactoryHalLocal.h b/media/libaudiohal/EffectsFactoryHalLocal.h
new file mode 100644
index 0000000..d5b81be
--- /dev/null
+++ b/media/libaudiohal/EffectsFactoryHalLocal.h
@@ -0,0 +1,57 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_EFFECTS_FACTORY_HAL_LOCAL_H
+#define ANDROID_HARDWARE_EFFECTS_FACTORY_HAL_LOCAL_H
+
+#include <media/audiohal/EffectsFactoryHalInterface.h>
+
+namespace android {
+
+class EffectsFactoryHalLocal : public EffectsFactoryHalInterface
+{
+  public:
+    // Returns the number of different effects in all loaded libraries.
+    virtual status_t queryNumberEffects(uint32_t *pNumEffects);
+
+    // Returns a descriptor of the next available effect.
+    virtual status_t getDescriptor(uint32_t index,
+            effect_descriptor_t *pDescriptor);
+
+    virtual status_t getDescriptor(const effect_uuid_t *pEffectUuid,
+            effect_descriptor_t *pDescriptor);
+
+    // Creates an effect engine of the specified type.
+    // To release the effect engine, it is necessary to release references
+    // to the returned effect object.
+    virtual status_t createEffect(const effect_uuid_t *pEffectUuid,
+            int32_t sessionId, int32_t ioId,
+            sp<EffectHalInterface> *effect);
+
+    virtual status_t dumpEffects(int fd);
+
+  private:
+    friend class EffectsFactoryHalInterface;
+
+    // Can not be constructed directly by clients.
+    EffectsFactoryHalLocal() {}
+
+    virtual ~EffectsFactoryHalLocal() {}
+};
+
+} // namespace android
+
+#endif // ANDROID_HARDWARE_EFFECTS_FACTORY_HAL_LOCAL_H
diff --git a/media/libaudiohal/HalDeathHandlerHidl.cpp b/media/libaudiohal/HalDeathHandlerHidl.cpp
new file mode 100644
index 0000000..a742671
--- /dev/null
+++ b/media/libaudiohal/HalDeathHandlerHidl.cpp
@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "HalDeathHandler"
+//#define LOG_NDEBUG 0
+
+#include <utils/Log.h>
+
+#include <media/audiohal/hidl/HalDeathHandler.h>
+
+namespace android {
+
+ANDROID_SINGLETON_STATIC_INSTANCE(HalDeathHandler);
+
+// static
+sp<HalDeathHandler> HalDeathHandler::getInstance() {
+    return &Singleton<HalDeathHandler>::getInstance();
+}
+
+HalDeathHandler::HalDeathHandler() : mSelf(this) {
+}
+
+HalDeathHandler::~HalDeathHandler() {
+}
+
+void HalDeathHandler::registerAtExitHandler(void* cookie, AtExitHandler handler) {
+    std::lock_guard<std::mutex> guard(mHandlersLock);
+    mHandlers.insert({cookie, handler});
+}
+
+void HalDeathHandler::unregisterAtExitHandler(void* cookie) {
+    std::lock_guard<std::mutex> guard(mHandlersLock);
+    mHandlers.erase(cookie);
+}
+
+void HalDeathHandler::serviceDied(uint64_t /*cookie*/, const wp<IBase>& /*who*/) {
+    // No matter which of the service objects has died,
+    // we need to run all the registered handlers and crash our process.
+    std::lock_guard<std::mutex> guard(mHandlersLock);
+    for (const auto& handler : mHandlers) {
+        handler.second();
+    }
+    LOG_ALWAYS_FATAL("HAL server crashed, need to restart");
+}
+
+} // namespace android
diff --git a/media/libaudiohal/StreamHalHidl.cpp b/media/libaudiohal/StreamHalHidl.cpp
new file mode 100644
index 0000000..5b06b73
--- /dev/null
+++ b/media/libaudiohal/StreamHalHidl.cpp
@@ -0,0 +1,711 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "StreamHalHidl"
+//#define LOG_NDEBUG 0
+
+#include <android/hardware/audio/2.0/IStreamOutCallback.h>
+#include <hwbinder/IPCThreadState.h>
+#include <mediautils/SchedulingPolicyService.h>
+#include <utils/Log.h>
+
+#include "DeviceHalHidl.h"
+#include "EffectHalHidl.h"
+#include "StreamHalHidl.h"
+
+using ::android::hardware::audio::common::V2_0::AudioChannelMask;
+using ::android::hardware::audio::common::V2_0::AudioFormat;
+using ::android::hardware::audio::common::V2_0::ThreadInfo;
+using ::android::hardware::audio::V2_0::AudioDrain;
+using ::android::hardware::audio::V2_0::IStreamOutCallback;
+using ::android::hardware::audio::V2_0::MessageQueueFlagBits;
+using ::android::hardware::audio::V2_0::MmapBufferInfo;
+using ::android::hardware::audio::V2_0::MmapPosition;
+using ::android::hardware::audio::V2_0::ParameterValue;
+using ::android::hardware::audio::V2_0::Result;
+using ::android::hardware::audio::V2_0::TimeSpec;
+using ::android::hardware::MQDescriptorSync;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ReadCommand = ::android::hardware::audio::V2_0::IStreamIn::ReadCommand;
+
+namespace android {
+
+StreamHalHidl::StreamHalHidl(IStream *stream)
+        : ConversionHelperHidl("Stream"),
+          mStream(stream),
+          mHalThreadPriority(HAL_THREAD_PRIORITY_DEFAULT) {
+}
+
+StreamHalHidl::~StreamHalHidl() {
+    mStream = nullptr;
+}
+
+status_t StreamHalHidl::getSampleRate(uint32_t *rate) {
+    if (!mStream) return NO_INIT;
+    return processReturn("getSampleRate", mStream->getSampleRate(), rate);
+}
+
+status_t StreamHalHidl::getBufferSize(size_t *size) {
+    if (!mStream) return NO_INIT;
+    return processReturn("getBufferSize", mStream->getBufferSize(), size);
+}
+
+status_t StreamHalHidl::getChannelMask(audio_channel_mask_t *mask) {
+    if (!mStream) return NO_INIT;
+    return processReturn("getChannelMask", mStream->getChannelMask(), mask);
+}
+
+status_t StreamHalHidl::getFormat(audio_format_t *format) {
+    if (!mStream) return NO_INIT;
+    return processReturn("getFormat", mStream->getFormat(), format);
+}
+
+status_t StreamHalHidl::getAudioProperties(
+        uint32_t *sampleRate, audio_channel_mask_t *mask, audio_format_t *format) {
+    if (!mStream) return NO_INIT;
+    Return<void> ret = mStream->getAudioProperties(
+            [&](uint32_t sr, AudioChannelMask m, AudioFormat f) {
+                *sampleRate = sr;
+                *mask = static_cast<audio_channel_mask_t>(m);
+                *format = static_cast<audio_format_t>(f);
+            });
+    return processReturn("getAudioProperties", ret);
+}
+
+status_t StreamHalHidl::setParameters(const String8& kvPairs) {
+    if (!mStream) return NO_INIT;
+    hidl_vec<ParameterValue> hidlParams;
+    status_t status = parametersFromHal(kvPairs, &hidlParams);
+    if (status != OK) return status;
+    return processReturn("setParameters", mStream->setParameters(hidlParams));
+}
+
+status_t StreamHalHidl::getParameters(const String8& keys, String8 *values) {
+    values->clear();
+    if (!mStream) return NO_INIT;
+    hidl_vec<hidl_string> hidlKeys;
+    status_t status = keysFromHal(keys, &hidlKeys);
+    if (status != OK) return status;
+    Result retval;
+    Return<void> ret = mStream->getParameters(
+            hidlKeys,
+            [&](Result r, const hidl_vec<ParameterValue>& parameters) {
+                retval = r;
+                if (retval == Result::OK) {
+                    parametersToHal(parameters, values);
+                }
+            });
+    return processReturn("getParameters", ret, retval);
+}
+
+status_t StreamHalHidl::addEffect(sp<EffectHalInterface> effect) {
+    if (!mStream) return NO_INIT;
+    return processReturn("addEffect", mStream->addEffect(
+                    static_cast<EffectHalHidl*>(effect.get())->effectId()));
+}
+
+status_t StreamHalHidl::removeEffect(sp<EffectHalInterface> effect) {
+    if (!mStream) return NO_INIT;
+    return processReturn("removeEffect", mStream->removeEffect(
+                    static_cast<EffectHalHidl*>(effect.get())->effectId()));
+}
+
+status_t StreamHalHidl::standby() {
+    if (!mStream) return NO_INIT;
+    return processReturn("standby", mStream->standby());
+}
+
+status_t StreamHalHidl::dump(int fd) {
+    if (!mStream) return NO_INIT;
+    native_handle_t* hidlHandle = native_handle_create(1, 0);
+    hidlHandle->data[0] = fd;
+    Return<void> ret = mStream->debugDump(hidlHandle);
+    native_handle_delete(hidlHandle);
+    return processReturn("dump", ret);
+}
+
+status_t StreamHalHidl::start() {
+    if (!mStream) return NO_INIT;
+    return processReturn("start", mStream->start());
+}
+
+status_t StreamHalHidl::stop() {
+    if (!mStream) return NO_INIT;
+    return processReturn("stop", mStream->stop());
+}
+
+status_t StreamHalHidl::createMmapBuffer(int32_t minSizeFrames,
+                                  struct audio_mmap_buffer_info *info) {
+    Result retval;
+    Return<void> ret = mStream->createMmapBuffer(
+            minSizeFrames,
+            [&](Result r, const MmapBufferInfo& hidlInfo) {
+                retval = r;
+                if (retval == Result::OK) {
+                    const native_handle *handle = hidlInfo.sharedMemory.handle();
+                    if (handle->numFds > 0) {
+                        info->shared_memory_fd = dup(handle->data[0]);
+                        info->buffer_size_frames = hidlInfo.bufferSizeFrames;
+                        info->burst_size_frames = hidlInfo.burstSizeFrames;
+                        // info->shared_memory_address is not needed in HIDL context
+                        info->shared_memory_address = NULL;
+                    } else {
+                        retval = Result::NOT_INITIALIZED;
+                    }
+                }
+            });
+    return processReturn("createMmapBuffer", ret, retval);
+}
+
+status_t StreamHalHidl::getMmapPosition(struct audio_mmap_position *position) {
+    Result retval;
+    Return<void> ret = mStream->getMmapPosition(
+            [&](Result r, const MmapPosition& hidlPosition) {
+                retval = r;
+                if (retval == Result::OK) {
+                    position->time_nanoseconds = hidlPosition.timeNanoseconds;
+                    position->position_frames = hidlPosition.positionFrames;
+                }
+            });
+    return processReturn("getMmapPosition", ret, retval);
+}
+
+status_t StreamHalHidl::setHalThreadPriority(int priority) {
+    mHalThreadPriority = priority;
+    return OK;
+}
+
+bool StreamHalHidl::requestHalThreadPriority(pid_t threadPid, pid_t threadId) {
+    if (mHalThreadPriority == HAL_THREAD_PRIORITY_DEFAULT) {
+        return true;
+    }
+    int err = requestPriority(
+            threadPid, threadId,
+            mHalThreadPriority, false /*isForApp*/, true /*asynchronous*/);
+    ALOGE_IF(err, "failed to set priority %d for pid %d tid %d; error %d",
+            mHalThreadPriority, threadPid, threadId, err);
+    // Audio will still work, but latency will be higher and sometimes unacceptable.
+    return err == 0;
+}
+
+namespace {
+
+/* Notes on callback ownership.
+
+This is how (Hw)Binder ownership model looks like. The server implementation
+is owned by Binder framework (via sp<>). Proxies are owned by clients.
+When the last proxy disappears, Binder framework releases the server impl.
+
+Thus, it is not needed to keep any references to StreamOutCallback (this is
+the server impl) -- it will live as long as HAL server holds a strong ref to
+IStreamOutCallback proxy. We clear that reference by calling 'clearCallback'
+from the destructor of StreamOutHalHidl.
+
+The callback only keeps a weak reference to the stream. The stream is owned
+by AudioFlinger.
+
+*/
+
+struct StreamOutCallback : public IStreamOutCallback {
+    StreamOutCallback(const wp<StreamOutHalHidl>& stream) : mStream(stream) {}
+
+    // IStreamOutCallback implementation
+    Return<void> onWriteReady()  override {
+        sp<StreamOutHalHidl> stream = mStream.promote();
+        if (stream != 0) {
+            stream->onWriteReady();
+        }
+        return Void();
+    }
+
+    Return<void> onDrainReady()  override {
+        sp<StreamOutHalHidl> stream = mStream.promote();
+        if (stream != 0) {
+            stream->onDrainReady();
+        }
+        return Void();
+    }
+
+    Return<void> onError()  override {
+        sp<StreamOutHalHidl> stream = mStream.promote();
+        if (stream != 0) {
+            stream->onError();
+        }
+        return Void();
+    }
+
+  private:
+    wp<StreamOutHalHidl> mStream;
+};
+
+}  // namespace
+
+StreamOutHalHidl::StreamOutHalHidl(const sp<IStreamOut>& stream)
+        : StreamHalHidl(stream.get()), mStream(stream), mWriterClient(0), mEfGroup(nullptr) {
+}
+
+StreamOutHalHidl::~StreamOutHalHidl() {
+    if (mStream != 0) {
+        if (mCallback.unsafe_get()) {
+            processReturn("clearCallback", mStream->clearCallback());
+        }
+        processReturn("close", mStream->close());
+        mStream.clear();
+    }
+    mCallback.clear();
+    hardware::IPCThreadState::self()->flushCommands();
+    if (mEfGroup) {
+        EventFlag::deleteEventFlag(&mEfGroup);
+    }
+}
+
+status_t StreamOutHalHidl::getFrameSize(size_t *size) {
+    if (mStream == 0) return NO_INIT;
+    return processReturn("getFrameSize", mStream->getFrameSize(), size);
+}
+
+status_t StreamOutHalHidl::getLatency(uint32_t *latency) {
+    if (mStream == 0) return NO_INIT;
+    if (mWriterClient == gettid() && mCommandMQ) {
+        return callWriterThread(
+                WriteCommand::GET_LATENCY, "getLatency", nullptr, 0,
+                [&](const WriteStatus& writeStatus) {
+                    *latency = writeStatus.reply.latencyMs;
+                });
+    } else {
+        return processReturn("getLatency", mStream->getLatency(), latency);
+    }
+}
+
+status_t StreamOutHalHidl::setVolume(float left, float right) {
+    if (mStream == 0) return NO_INIT;
+    return processReturn("setVolume", mStream->setVolume(left, right));
+}
+
+status_t StreamOutHalHidl::write(const void *buffer, size_t bytes, size_t *written) {
+    if (mStream == 0) return NO_INIT;
+    *written = 0;
+
+    if (bytes == 0 && !mDataMQ) {
+        // Can't determine the size for the MQ buffer. Wait for a non-empty write request.
+        ALOGW_IF(mCallback.unsafe_get(), "First call to async write with 0 bytes");
+        return OK;
+    }
+
+    status_t status;
+    if (!mDataMQ && (status = prepareForWriting(bytes)) != OK) {
+        return status;
+    }
+
+    return callWriterThread(
+            WriteCommand::WRITE, "write", static_cast<const uint8_t*>(buffer), bytes,
+            [&] (const WriteStatus& writeStatus) {
+                *written = writeStatus.reply.written;
+                // Diagnostics of the cause of b/35813113.
+                ALOGE_IF(*written > bytes,
+                        "hal reports more bytes written than asked for: %lld > %lld",
+                        (long long)*written, (long long)bytes);
+            });
+}
+
+status_t StreamOutHalHidl::callWriterThread(
+        WriteCommand cmd, const char* cmdName,
+        const uint8_t* data, size_t dataSize, StreamOutHalHidl::WriterCallback callback) {
+    if (!mCommandMQ->write(&cmd)) {
+        ALOGE("command message queue write failed for \"%s\"", cmdName);
+        return -EAGAIN;
+    }
+    if (data != nullptr) {
+        size_t availableToWrite = mDataMQ->availableToWrite();
+        if (dataSize > availableToWrite) {
+            ALOGW("truncating write data from %lld to %lld due to insufficient data queue space",
+                    (long long)dataSize, (long long)availableToWrite);
+            dataSize = availableToWrite;
+        }
+        if (!mDataMQ->write(data, dataSize)) {
+            ALOGE("data message queue write failed for \"%s\"", cmdName);
+        }
+    }
+    mEfGroup->wake(static_cast<uint32_t>(MessageQueueFlagBits::NOT_EMPTY));
+
+    // TODO: Remove manual event flag handling once blocking MQ is implemented. b/33815422
+    uint32_t efState = 0;
+retry:
+    status_t ret = mEfGroup->wait(static_cast<uint32_t>(MessageQueueFlagBits::NOT_FULL), &efState);
+    if (efState & static_cast<uint32_t>(MessageQueueFlagBits::NOT_FULL)) {
+        WriteStatus writeStatus;
+        writeStatus.retval = Result::NOT_INITIALIZED;
+        if (!mStatusMQ->read(&writeStatus)) {
+            ALOGE("status message read failed for \"%s\"", cmdName);
+        }
+        if (writeStatus.retval == Result::OK) {
+            ret = OK;
+            callback(writeStatus);
+        } else {
+            ret = processReturn(cmdName, writeStatus.retval);
+        }
+        return ret;
+    }
+    if (ret == -EAGAIN || ret == -EINTR) {
+        // Spurious wakeup. This normally retries no more than once.
+        goto retry;
+    }
+    return ret;
+}
+
+status_t StreamOutHalHidl::prepareForWriting(size_t bufferSize) {
+    std::unique_ptr<CommandMQ> tempCommandMQ;
+    std::unique_ptr<DataMQ> tempDataMQ;
+    std::unique_ptr<StatusMQ> tempStatusMQ;
+    Result retval;
+    pid_t halThreadPid, halThreadTid;
+    Return<void> ret = mStream->prepareForWriting(
+            1, bufferSize,
+            [&](Result r,
+                    const CommandMQ::Descriptor& commandMQ,
+                    const DataMQ::Descriptor& dataMQ,
+                    const StatusMQ::Descriptor& statusMQ,
+                    const ThreadInfo& halThreadInfo) {
+                retval = r;
+                if (retval == Result::OK) {
+                    tempCommandMQ.reset(new CommandMQ(commandMQ));
+                    tempDataMQ.reset(new DataMQ(dataMQ));
+                    tempStatusMQ.reset(new StatusMQ(statusMQ));
+                    if (tempDataMQ->isValid() && tempDataMQ->getEventFlagWord()) {
+                        EventFlag::createEventFlag(tempDataMQ->getEventFlagWord(), &mEfGroup);
+                    }
+                    halThreadPid = halThreadInfo.pid;
+                    halThreadTid = halThreadInfo.tid;
+                }
+            });
+    if (!ret.isOk() || retval != Result::OK) {
+        return processReturn("prepareForWriting", ret, retval);
+    }
+    if (!tempCommandMQ || !tempCommandMQ->isValid() ||
+            !tempDataMQ || !tempDataMQ->isValid() ||
+            !tempStatusMQ || !tempStatusMQ->isValid() ||
+            !mEfGroup) {
+        ALOGE_IF(!tempCommandMQ, "Failed to obtain command message queue for writing");
+        ALOGE_IF(tempCommandMQ && !tempCommandMQ->isValid(),
+                "Command message queue for writing is invalid");
+        ALOGE_IF(!tempDataMQ, "Failed to obtain data message queue for writing");
+        ALOGE_IF(tempDataMQ && !tempDataMQ->isValid(), "Data message queue for writing is invalid");
+        ALOGE_IF(!tempStatusMQ, "Failed to obtain status message queue for writing");
+        ALOGE_IF(tempStatusMQ && !tempStatusMQ->isValid(),
+                "Status message queue for writing is invalid");
+        ALOGE_IF(!mEfGroup, "Event flag creation for writing failed");
+        return NO_INIT;
+    }
+    requestHalThreadPriority(halThreadPid, halThreadTid);
+
+    mCommandMQ = std::move(tempCommandMQ);
+    mDataMQ = std::move(tempDataMQ);
+    mStatusMQ = std::move(tempStatusMQ);
+    mWriterClient = gettid();
+    return OK;
+}
+
+status_t StreamOutHalHidl::getRenderPosition(uint32_t *dspFrames) {
+    if (mStream == 0) return NO_INIT;
+    Result retval;
+    Return<void> ret = mStream->getRenderPosition(
+            [&](Result r, uint32_t d) {
+                retval = r;
+                if (retval == Result::OK) {
+                    *dspFrames = d;
+                }
+            });
+    return processReturn("getRenderPosition", ret, retval);
+}
+
+status_t StreamOutHalHidl::getNextWriteTimestamp(int64_t *timestamp) {
+    if (mStream == 0) return NO_INIT;
+    Result retval;
+    Return<void> ret = mStream->getNextWriteTimestamp(
+            [&](Result r, int64_t t) {
+                retval = r;
+                if (retval == Result::OK) {
+                    *timestamp = t;
+                }
+            });
+    return processReturn("getRenderPosition", ret, retval);
+}
+
+status_t StreamOutHalHidl::setCallback(wp<StreamOutHalInterfaceCallback> callback) {
+    if (mStream == 0) return NO_INIT;
+    status_t status = processReturn(
+            "setCallback", mStream->setCallback(new StreamOutCallback(this)));
+    if (status == OK) {
+        mCallback = callback;
+    }
+    return status;
+}
+
+status_t StreamOutHalHidl::supportsPauseAndResume(bool *supportsPause, bool *supportsResume) {
+    if (mStream == 0) return NO_INIT;
+    Return<void> ret = mStream->supportsPauseAndResume(
+            [&](bool p, bool r) {
+                *supportsPause = p;
+                *supportsResume = r;
+            });
+    return processReturn("supportsPauseAndResume", ret);
+}
+
+status_t StreamOutHalHidl::pause() {
+    if (mStream == 0) return NO_INIT;
+    return processReturn("pause", mStream->pause());
+}
+
+status_t StreamOutHalHidl::resume() {
+    if (mStream == 0) return NO_INIT;
+    return processReturn("pause", mStream->resume());
+}
+
+status_t StreamOutHalHidl::supportsDrain(bool *supportsDrain) {
+    if (mStream == 0) return NO_INIT;
+    return processReturn("supportsDrain", mStream->supportsDrain(), supportsDrain);
+}
+
+status_t StreamOutHalHidl::drain(bool earlyNotify) {
+    if (mStream == 0) return NO_INIT;
+    return processReturn(
+            "drain", mStream->drain(earlyNotify ? AudioDrain::EARLY_NOTIFY : AudioDrain::ALL));
+}
+
+status_t StreamOutHalHidl::flush() {
+    if (mStream == 0) return NO_INIT;
+    return processReturn("pause", mStream->flush());
+}
+
+status_t StreamOutHalHidl::getPresentationPosition(uint64_t *frames, struct timespec *timestamp) {
+    if (mStream == 0) return NO_INIT;
+    if (mWriterClient == gettid() && mCommandMQ) {
+        return callWriterThread(
+                WriteCommand::GET_PRESENTATION_POSITION, "getPresentationPosition", nullptr, 0,
+                [&](const WriteStatus& writeStatus) {
+                    *frames = writeStatus.reply.presentationPosition.frames;
+                    timestamp->tv_sec = writeStatus.reply.presentationPosition.timeStamp.tvSec;
+                    timestamp->tv_nsec = writeStatus.reply.presentationPosition.timeStamp.tvNSec;
+                });
+    } else {
+        Result retval;
+        Return<void> ret = mStream->getPresentationPosition(
+                [&](Result r, uint64_t hidlFrames, const TimeSpec& hidlTimeStamp) {
+                    retval = r;
+                    if (retval == Result::OK) {
+                        *frames = hidlFrames;
+                        timestamp->tv_sec = hidlTimeStamp.tvSec;
+                        timestamp->tv_nsec = hidlTimeStamp.tvNSec;
+                    }
+                });
+        return processReturn("getPresentationPosition", ret, retval);
+    }
+}
+
+void StreamOutHalHidl::onWriteReady() {
+    sp<StreamOutHalInterfaceCallback> callback = mCallback.promote();
+    if (callback == 0) return;
+    ALOGV("asyncCallback onWriteReady");
+    callback->onWriteReady();
+}
+
+void StreamOutHalHidl::onDrainReady() {
+    sp<StreamOutHalInterfaceCallback> callback = mCallback.promote();
+    if (callback == 0) return;
+    ALOGV("asyncCallback onDrainReady");
+    callback->onDrainReady();
+}
+
+void StreamOutHalHidl::onError() {
+    sp<StreamOutHalInterfaceCallback> callback = mCallback.promote();
+    if (callback == 0) return;
+    ALOGV("asyncCallback onError");
+    callback->onError();
+}
+
+
+StreamInHalHidl::StreamInHalHidl(const sp<IStreamIn>& stream)
+        : StreamHalHidl(stream.get()), mStream(stream), mReaderClient(0), mEfGroup(nullptr) {
+}
+
+StreamInHalHidl::~StreamInHalHidl() {
+    if (mStream != 0) {
+        processReturn("close", mStream->close());
+        mStream.clear();
+        hardware::IPCThreadState::self()->flushCommands();
+    }
+    if (mEfGroup) {
+        EventFlag::deleteEventFlag(&mEfGroup);
+    }
+}
+
+status_t StreamInHalHidl::getFrameSize(size_t *size) {
+    if (mStream == 0) return NO_INIT;
+    return processReturn("getFrameSize", mStream->getFrameSize(), size);
+}
+
+status_t StreamInHalHidl::setGain(float gain) {
+    if (mStream == 0) return NO_INIT;
+    return processReturn("setGain", mStream->setGain(gain));
+}
+
+status_t StreamInHalHidl::read(void *buffer, size_t bytes, size_t *read) {
+    if (mStream == 0) return NO_INIT;
+    *read = 0;
+
+    if (bytes == 0 && !mDataMQ) {
+        // Can't determine the size for the MQ buffer. Wait for a non-empty read request.
+        return OK;
+    }
+
+    status_t status;
+    if (!mDataMQ && (status = prepareForReading(bytes)) != OK) {
+        return status;
+    }
+
+    ReadParameters params;
+    params.command = ReadCommand::READ;
+    params.params.read = bytes;
+    return callReaderThread(params, "read",
+            [&](const ReadStatus& readStatus) {
+                const size_t availToRead = mDataMQ->availableToRead();
+                if (!mDataMQ->read(static_cast<uint8_t*>(buffer), std::min(bytes, availToRead))) {
+                    ALOGE("data message queue read failed for \"read\"");
+                }
+                ALOGW_IF(availToRead != readStatus.reply.read,
+                        "HAL read report inconsistent: mq = %d, status = %d",
+                        (int32_t)availToRead, (int32_t)readStatus.reply.read);
+                *read = readStatus.reply.read;
+            });
+}
+
+status_t StreamInHalHidl::callReaderThread(
+        const ReadParameters& params, const char* cmdName,
+        StreamInHalHidl::ReaderCallback callback) {
+    if (!mCommandMQ->write(&params)) {
+        ALOGW("command message queue write failed");
+        return -EAGAIN;
+    }
+    mEfGroup->wake(static_cast<uint32_t>(MessageQueueFlagBits::NOT_FULL));
+
+    // TODO: Remove manual event flag handling once blocking MQ is implemented. b/33815422
+    uint32_t efState = 0;
+retry:
+    status_t ret = mEfGroup->wait(static_cast<uint32_t>(MessageQueueFlagBits::NOT_EMPTY), &efState);
+    if (efState & static_cast<uint32_t>(MessageQueueFlagBits::NOT_EMPTY)) {
+        ReadStatus readStatus;
+        readStatus.retval = Result::NOT_INITIALIZED;
+        if (!mStatusMQ->read(&readStatus)) {
+            ALOGE("status message read failed for \"%s\"", cmdName);
+        }
+         if (readStatus.retval == Result::OK) {
+            ret = OK;
+            callback(readStatus);
+        } else {
+            ret = processReturn(cmdName, readStatus.retval);
+        }
+        return ret;
+    }
+    if (ret == -EAGAIN || ret == -EINTR) {
+        // Spurious wakeup. This normally retries no more than once.
+        goto retry;
+    }
+    return ret;
+}
+
+status_t StreamInHalHidl::prepareForReading(size_t bufferSize) {
+    std::unique_ptr<CommandMQ> tempCommandMQ;
+    std::unique_ptr<DataMQ> tempDataMQ;
+    std::unique_ptr<StatusMQ> tempStatusMQ;
+    Result retval;
+    pid_t halThreadPid, halThreadTid;
+    Return<void> ret = mStream->prepareForReading(
+            1, bufferSize,
+            [&](Result r,
+                    const CommandMQ::Descriptor& commandMQ,
+                    const DataMQ::Descriptor& dataMQ,
+                    const StatusMQ::Descriptor& statusMQ,
+                    const ThreadInfo& halThreadInfo) {
+                retval = r;
+                if (retval == Result::OK) {
+                    tempCommandMQ.reset(new CommandMQ(commandMQ));
+                    tempDataMQ.reset(new DataMQ(dataMQ));
+                    tempStatusMQ.reset(new StatusMQ(statusMQ));
+                    if (tempDataMQ->isValid() && tempDataMQ->getEventFlagWord()) {
+                        EventFlag::createEventFlag(tempDataMQ->getEventFlagWord(), &mEfGroup);
+                    }
+                    halThreadPid = halThreadInfo.pid;
+                    halThreadTid = halThreadInfo.tid;
+                }
+            });
+    if (!ret.isOk() || retval != Result::OK) {
+        return processReturn("prepareForReading", ret, retval);
+    }
+    if (!tempCommandMQ || !tempCommandMQ->isValid() ||
+            !tempDataMQ || !tempDataMQ->isValid() ||
+            !tempStatusMQ || !tempStatusMQ->isValid() ||
+            !mEfGroup) {
+        ALOGE_IF(!tempCommandMQ, "Failed to obtain command message queue for writing");
+        ALOGE_IF(tempCommandMQ && !tempCommandMQ->isValid(),
+                "Command message queue for writing is invalid");
+        ALOGE_IF(!tempDataMQ, "Failed to obtain data message queue for reading");
+        ALOGE_IF(tempDataMQ && !tempDataMQ->isValid(), "Data message queue for reading is invalid");
+        ALOGE_IF(!tempStatusMQ, "Failed to obtain status message queue for reading");
+        ALOGE_IF(tempStatusMQ && !tempStatusMQ->isValid(),
+                "Status message queue for reading is invalid");
+        ALOGE_IF(!mEfGroup, "Event flag creation for reading failed");
+        return NO_INIT;
+    }
+    requestHalThreadPriority(halThreadPid, halThreadTid);
+
+    mCommandMQ = std::move(tempCommandMQ);
+    mDataMQ = std::move(tempDataMQ);
+    mStatusMQ = std::move(tempStatusMQ);
+    mReaderClient = gettid();
+    return OK;
+}
+
+status_t StreamInHalHidl::getInputFramesLost(uint32_t *framesLost) {
+    if (mStream == 0) return NO_INIT;
+    return processReturn("getInputFramesLost", mStream->getInputFramesLost(), framesLost);
+}
+
+status_t StreamInHalHidl::getCapturePosition(int64_t *frames, int64_t *time) {
+    if (mStream == 0) return NO_INIT;
+    if (mReaderClient == gettid() && mCommandMQ) {
+        ReadParameters params;
+        params.command = ReadCommand::GET_CAPTURE_POSITION;
+        return callReaderThread(params, "getCapturePosition",
+                [&](const ReadStatus& readStatus) {
+                    *frames = readStatus.reply.capturePosition.frames;
+                    *time = readStatus.reply.capturePosition.time;
+                });
+    } else {
+        Result retval;
+        Return<void> ret = mStream->getCapturePosition(
+                [&](Result r, uint64_t hidlFrames, uint64_t hidlTime) {
+                    retval = r;
+                    if (retval == Result::OK) {
+                        *frames = hidlFrames;
+                        *time = hidlTime;
+                    }
+                });
+        return processReturn("getCapturePosition", ret, retval);
+    }
+}
+
+} // namespace android
diff --git a/media/libaudiohal/StreamHalHidl.h b/media/libaudiohal/StreamHalHidl.h
new file mode 100644
index 0000000..a7df276
--- /dev/null
+++ b/media/libaudiohal/StreamHalHidl.h
@@ -0,0 +1,232 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_STREAM_HAL_HIDL_H
+#define ANDROID_HARDWARE_STREAM_HAL_HIDL_H
+
+#include <atomic>
+
+#include <android/hardware/audio/2.0/IStream.h>
+#include <android/hardware/audio/2.0/IStreamIn.h>
+#include <android/hardware/audio/2.0/IStreamOut.h>
+#include <fmq/EventFlag.h>
+#include <fmq/MessageQueue.h>
+#include <media/audiohal/StreamHalInterface.h>
+
+#include "ConversionHelperHidl.h"
+
+using ::android::hardware::audio::V2_0::IStream;
+using ::android::hardware::audio::V2_0::IStreamIn;
+using ::android::hardware::audio::V2_0::IStreamOut;
+using ::android::hardware::EventFlag;
+using ::android::hardware::MessageQueue;
+using ::android::hardware::Return;
+using ReadParameters = ::android::hardware::audio::V2_0::IStreamIn::ReadParameters;
+using ReadStatus = ::android::hardware::audio::V2_0::IStreamIn::ReadStatus;
+using WriteCommand = ::android::hardware::audio::V2_0::IStreamOut::WriteCommand;
+using WriteStatus = ::android::hardware::audio::V2_0::IStreamOut::WriteStatus;
+
+namespace android {
+
+class DeviceHalHidl;
+
+class StreamHalHidl : public virtual StreamHalInterface, public ConversionHelperHidl
+{
+  public:
+    // Return the sampling rate in Hz - eg. 44100.
+    virtual status_t getSampleRate(uint32_t *rate);
+
+    // Return size of input/output buffer in bytes for this stream - eg. 4800.
+    virtual status_t getBufferSize(size_t *size);
+
+    // Return the channel mask.
+    virtual status_t getChannelMask(audio_channel_mask_t *mask);
+
+    // Return the audio format - e.g. AUDIO_FORMAT_PCM_16_BIT.
+    virtual status_t getFormat(audio_format_t *format);
+
+    // Convenience method.
+    virtual status_t getAudioProperties(
+            uint32_t *sampleRate, audio_channel_mask_t *mask, audio_format_t *format);
+
+    // Set audio stream parameters.
+    virtual status_t setParameters(const String8& kvPairs);
+
+    // Get audio stream parameters.
+    virtual status_t getParameters(const String8& keys, String8 *values);
+
+    // Add or remove the effect on the stream.
+    virtual status_t addEffect(sp<EffectHalInterface> effect);
+    virtual status_t removeEffect(sp<EffectHalInterface> effect);
+
+    // Put the audio hardware input/output into standby mode.
+    virtual status_t standby();
+
+    virtual status_t dump(int fd);
+
+    // Start a stream operating in mmap mode.
+    virtual status_t start();
+
+    // Stop a stream operating in mmap mode.
+    virtual status_t stop();
+
+    // Retrieve information on the data buffer in mmap mode.
+    virtual status_t createMmapBuffer(int32_t minSizeFrames,
+                                      struct audio_mmap_buffer_info *info);
+
+    // Get current read/write position in the mmap buffer
+    virtual status_t getMmapPosition(struct audio_mmap_position *position);
+
+    // Set the priority of the thread that interacts with the HAL
+    // (must match the priority of the audioflinger's thread that calls 'read' / 'write')
+    virtual status_t setHalThreadPriority(int priority);
+
+  protected:
+    // Subclasses can not be constructed directly by clients.
+    explicit StreamHalHidl(IStream *stream);
+
+    // The destructor automatically closes the stream.
+    virtual ~StreamHalHidl();
+
+    bool requestHalThreadPriority(pid_t threadPid, pid_t threadId);
+
+  private:
+    const int HAL_THREAD_PRIORITY_DEFAULT = -1;
+    IStream *mStream;
+    int mHalThreadPriority;
+};
+
+class StreamOutHalHidl : public StreamOutHalInterface, public StreamHalHidl {
+  public:
+    // Return the frame size (number of bytes per sample) of a stream.
+    virtual status_t getFrameSize(size_t *size);
+
+    // Return the audio hardware driver estimated latency in milliseconds.
+    virtual status_t getLatency(uint32_t *latency);
+
+    // Use this method in situations where audio mixing is done in the hardware.
+    virtual status_t setVolume(float left, float right);
+
+    // Write audio buffer to driver.
+    virtual status_t write(const void *buffer, size_t bytes, size_t *written);
+
+    // Return the number of audio frames written by the audio dsp to DAC since
+    // the output has exited standby.
+    virtual status_t getRenderPosition(uint32_t *dspFrames);
+
+    // Get the local time at which the next write to the audio driver will be presented.
+    virtual status_t getNextWriteTimestamp(int64_t *timestamp);
+
+    // Set the callback for notifying completion of non-blocking write and drain.
+    virtual status_t setCallback(wp<StreamOutHalInterfaceCallback> callback);
+
+    // Returns whether pause and resume operations are supported.
+    virtual status_t supportsPauseAndResume(bool *supportsPause, bool *supportsResume);
+
+    // Notifies to the audio driver to resume playback following a pause.
+    virtual status_t pause();
+
+    // Notifies to the audio driver to resume playback following a pause.
+    virtual status_t resume();
+
+    // Returns whether drain operation is supported.
+    virtual status_t supportsDrain(bool *supportsDrain);
+
+    // Requests notification when data buffered by the driver/hardware has been played.
+    virtual status_t drain(bool earlyNotify);
+
+    // Notifies to the audio driver to flush the queued data.
+    virtual status_t flush();
+
+    // Return a recent count of the number of audio frames presented to an external observer.
+    virtual status_t getPresentationPosition(uint64_t *frames, struct timespec *timestamp);
+
+    // Methods used by StreamOutCallback (HIDL).
+    void onWriteReady();
+    void onDrainReady();
+    void onError();
+
+  private:
+    friend class DeviceHalHidl;
+    typedef MessageQueue<WriteCommand, hardware::kSynchronizedReadWrite> CommandMQ;
+    typedef MessageQueue<uint8_t, hardware::kSynchronizedReadWrite> DataMQ;
+    typedef MessageQueue<WriteStatus, hardware::kSynchronizedReadWrite> StatusMQ;
+
+    wp<StreamOutHalInterfaceCallback> mCallback;
+    sp<IStreamOut> mStream;
+    std::unique_ptr<CommandMQ> mCommandMQ;
+    std::unique_ptr<DataMQ> mDataMQ;
+    std::unique_ptr<StatusMQ> mStatusMQ;
+    std::atomic<pid_t> mWriterClient;
+    EventFlag* mEfGroup;
+
+    // Can not be constructed directly by clients.
+    StreamOutHalHidl(const sp<IStreamOut>& stream);
+
+    virtual ~StreamOutHalHidl();
+
+    using WriterCallback = std::function<void(const WriteStatus& writeStatus)>;
+    status_t callWriterThread(
+            WriteCommand cmd, const char* cmdName,
+            const uint8_t* data, size_t dataSize, WriterCallback callback);
+    status_t prepareForWriting(size_t bufferSize);
+};
+
+class StreamInHalHidl : public StreamInHalInterface, public StreamHalHidl {
+  public:
+    // Return the frame size (number of bytes per sample) of a stream.
+    virtual status_t getFrameSize(size_t *size);
+
+    // Set the input gain for the audio driver.
+    virtual status_t setGain(float gain);
+
+    // Read audio buffer in from driver.
+    virtual status_t read(void *buffer, size_t bytes, size_t *read);
+
+    // Return the amount of input frames lost in the audio driver.
+    virtual status_t getInputFramesLost(uint32_t *framesLost);
+
+    // Return a recent count of the number of audio frames received and
+    // the clock time associated with that frame count.
+    virtual status_t getCapturePosition(int64_t *frames, int64_t *time);
+
+  private:
+    friend class DeviceHalHidl;
+    typedef MessageQueue<ReadParameters, hardware::kSynchronizedReadWrite> CommandMQ;
+    typedef MessageQueue<uint8_t, hardware::kSynchronizedReadWrite> DataMQ;
+    typedef MessageQueue<ReadStatus, hardware::kSynchronizedReadWrite> StatusMQ;
+
+    sp<IStreamIn> mStream;
+    std::unique_ptr<CommandMQ> mCommandMQ;
+    std::unique_ptr<DataMQ> mDataMQ;
+    std::unique_ptr<StatusMQ> mStatusMQ;
+    std::atomic<pid_t> mReaderClient;
+    EventFlag* mEfGroup;
+
+    // Can not be constructed directly by clients.
+    StreamInHalHidl(const sp<IStreamIn>& stream);
+
+    virtual ~StreamInHalHidl();
+
+    using ReaderCallback = std::function<void(const ReadStatus& readStatus)>;
+    status_t callReaderThread(
+            const ReadParameters& params, const char* cmdName, ReaderCallback callback);
+    status_t prepareForReading(size_t bufferSize);
+};
+
+} // namespace android
+
+#endif // ANDROID_HARDWARE_STREAM_HAL_HIDL_H
diff --git a/media/libaudiohal/StreamHalLocal.cpp b/media/libaudiohal/StreamHalLocal.cpp
new file mode 100644
index 0000000..b25e518
--- /dev/null
+++ b/media/libaudiohal/StreamHalLocal.cpp
@@ -0,0 +1,305 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "StreamHalLocal"
+//#define LOG_NDEBUG 0
+
+#include <hardware/audio.h>
+#include <utils/Log.h>
+
+#include "DeviceHalLocal.h"
+#include "EffectHalLocal.h"
+#include "StreamHalLocal.h"
+
+namespace android {
+
+StreamHalLocal::StreamHalLocal(audio_stream_t *stream, sp<DeviceHalLocal> device)
+        : mDevice(device), mStream(stream) {
+}
+
+StreamHalLocal::~StreamHalLocal() {
+    mStream = 0;
+    mDevice.clear();
+}
+
+status_t StreamHalLocal::getSampleRate(uint32_t *rate) {
+    *rate = mStream->get_sample_rate(mStream);
+    return OK;
+}
+
+status_t StreamHalLocal::getBufferSize(size_t *size) {
+    *size = mStream->get_buffer_size(mStream);
+    return OK;
+}
+
+status_t StreamHalLocal::getChannelMask(audio_channel_mask_t *mask) {
+    *mask = mStream->get_channels(mStream);
+    return OK;
+}
+
+status_t StreamHalLocal::getFormat(audio_format_t *format) {
+    *format = mStream->get_format(mStream);
+    return OK;
+}
+
+status_t StreamHalLocal::getAudioProperties(
+        uint32_t *sampleRate, audio_channel_mask_t *mask, audio_format_t *format) {
+    *sampleRate = mStream->get_sample_rate(mStream);
+    *mask = mStream->get_channels(mStream);
+    *format = mStream->get_format(mStream);
+    return OK;
+}
+
+status_t StreamHalLocal::setParameters(const String8& kvPairs) {
+    return mStream->set_parameters(mStream, kvPairs.string());
+}
+
+status_t StreamHalLocal::getParameters(const String8& keys, String8 *values) {
+    char *halValues = mStream->get_parameters(mStream, keys.string());
+    if (halValues != NULL) {
+        values->setTo(halValues);
+        free(halValues);
+    } else {
+        values->clear();
+    }
+    return OK;
+}
+
+status_t StreamHalLocal::addEffect(sp<EffectHalInterface> effect) {
+    return mStream->add_audio_effect(mStream,
+            static_cast<EffectHalLocal*>(effect.get())->handle());
+}
+
+status_t StreamHalLocal::removeEffect(sp<EffectHalInterface> effect) {
+    return mStream->remove_audio_effect(mStream,
+            static_cast<EffectHalLocal*>(effect.get())->handle());
+}
+
+status_t StreamHalLocal::standby() {
+    return mStream->standby(mStream);
+}
+
+status_t StreamHalLocal::dump(int fd) {
+    return mStream->dump(mStream, fd);
+}
+
+status_t StreamHalLocal::setHalThreadPriority(int) {
+    // Don't need to do anything as local hal is executed by audioflinger directly
+    // on the same thread.
+    return OK;
+}
+
+StreamOutHalLocal::StreamOutHalLocal(audio_stream_out_t *stream, sp<DeviceHalLocal> device)
+        : StreamHalLocal(&stream->common, device), mStream(stream) {
+}
+
+StreamOutHalLocal::~StreamOutHalLocal() {
+    mCallback.clear();
+    mDevice->closeOutputStream(mStream);
+    mStream = 0;
+}
+
+status_t StreamOutHalLocal::getFrameSize(size_t *size) {
+    *size = audio_stream_out_frame_size(mStream);
+    return OK;
+}
+
+status_t StreamOutHalLocal::getLatency(uint32_t *latency) {
+    *latency = mStream->get_latency(mStream);
+    return OK;
+}
+
+status_t StreamOutHalLocal::setVolume(float left, float right) {
+    if (mStream->set_volume == NULL) return INVALID_OPERATION;
+    return mStream->set_volume(mStream, left, right);
+}
+
+status_t StreamOutHalLocal::write(const void *buffer, size_t bytes, size_t *written) {
+    ssize_t writeResult = mStream->write(mStream, buffer, bytes);
+    if (writeResult > 0) {
+        *written = writeResult;
+        return OK;
+    } else {
+        *written = 0;
+        return writeResult;
+    }
+}
+
+status_t StreamOutHalLocal::getRenderPosition(uint32_t *dspFrames) {
+    return mStream->get_render_position(mStream, dspFrames);
+}
+
+status_t StreamOutHalLocal::getNextWriteTimestamp(int64_t *timestamp) {
+    if (mStream->get_next_write_timestamp == NULL) return INVALID_OPERATION;
+    return mStream->get_next_write_timestamp(mStream, timestamp);
+}
+
+status_t StreamOutHalLocal::setCallback(wp<StreamOutHalInterfaceCallback> callback) {
+    if (mStream->set_callback == NULL) return INVALID_OPERATION;
+    status_t result = mStream->set_callback(mStream, StreamOutHalLocal::asyncCallback, this);
+    if (result == OK) {
+        mCallback = callback;
+    }
+    return result;
+}
+
+// static
+int StreamOutHalLocal::asyncCallback(stream_callback_event_t event, void*, void *cookie) {
+    // We act as if we gave a wp<StreamOutHalLocal> to HAL. This way we should handle
+    // correctly the case when the callback is invoked while StreamOutHalLocal's destructor is
+    // already running, because the destructor is invoked after the refcount has been atomically
+    // decremented.
+    wp<StreamOutHalLocal> weakSelf(reinterpret_cast<StreamOutHalLocal*>(cookie));
+    sp<StreamOutHalLocal> self = weakSelf.promote();
+    if (self == 0) return 0;
+    sp<StreamOutHalInterfaceCallback> callback = self->mCallback.promote();
+    if (callback == 0) return 0;
+    ALOGV("asyncCallback() event %d", event);
+    switch (event) {
+        case STREAM_CBK_EVENT_WRITE_READY:
+            callback->onWriteReady();
+            break;
+        case STREAM_CBK_EVENT_DRAIN_READY:
+            callback->onDrainReady();
+            break;
+        case STREAM_CBK_EVENT_ERROR:
+            callback->onError();
+            break;
+        default:
+            ALOGW("asyncCallback() unknown event %d", event);
+            break;
+    }
+    return 0;
+}
+
+status_t StreamOutHalLocal::supportsPauseAndResume(bool *supportsPause, bool *supportsResume) {
+    *supportsPause = mStream->pause != NULL;
+    *supportsResume = mStream->resume != NULL;
+    return OK;
+}
+
+status_t StreamOutHalLocal::pause() {
+    if (mStream->pause == NULL) return INVALID_OPERATION;
+    return mStream->pause(mStream);
+}
+
+status_t StreamOutHalLocal::resume() {
+    if (mStream->resume == NULL) return INVALID_OPERATION;
+    return mStream->resume(mStream);
+}
+
+status_t StreamOutHalLocal::supportsDrain(bool *supportsDrain) {
+    *supportsDrain = mStream->drain != NULL;
+    return OK;
+}
+
+status_t StreamOutHalLocal::drain(bool earlyNotify) {
+    if (mStream->drain == NULL) return INVALID_OPERATION;
+    return mStream->drain(mStream, earlyNotify ? AUDIO_DRAIN_EARLY_NOTIFY : AUDIO_DRAIN_ALL);
+}
+
+status_t StreamOutHalLocal::flush() {
+    if (mStream->flush == NULL) return INVALID_OPERATION;
+    return mStream->flush(mStream);
+}
+
+status_t StreamOutHalLocal::getPresentationPosition(uint64_t *frames, struct timespec *timestamp) {
+    if (mStream->get_presentation_position == NULL) return INVALID_OPERATION;
+    return mStream->get_presentation_position(mStream, frames, timestamp);
+}
+
+status_t StreamOutHalLocal::start() {
+    if (mStream->start == NULL) return INVALID_OPERATION;
+    return mStream->start(mStream);
+}
+
+status_t StreamOutHalLocal::stop() {
+    if (mStream->stop == NULL) return INVALID_OPERATION;
+    return mStream->stop(mStream);
+}
+
+status_t StreamOutHalLocal::createMmapBuffer(int32_t minSizeFrames,
+                                  struct audio_mmap_buffer_info *info) {
+    if (mStream->create_mmap_buffer == NULL) return INVALID_OPERATION;
+    return mStream->create_mmap_buffer(mStream, minSizeFrames, info);
+}
+
+status_t StreamOutHalLocal::getMmapPosition(struct audio_mmap_position *position) {
+    if (mStream->get_mmap_position == NULL) return INVALID_OPERATION;
+    return mStream->get_mmap_position(mStream, position);
+}
+
+StreamInHalLocal::StreamInHalLocal(audio_stream_in_t *stream, sp<DeviceHalLocal> device)
+        : StreamHalLocal(&stream->common, device), mStream(stream) {
+}
+
+StreamInHalLocal::~StreamInHalLocal() {
+    mDevice->closeInputStream(mStream);
+    mStream = 0;
+}
+
+status_t StreamInHalLocal::getFrameSize(size_t *size) {
+    *size = audio_stream_in_frame_size(mStream);
+    return OK;
+}
+
+status_t StreamInHalLocal::setGain(float gain) {
+    return mStream->set_gain(mStream, gain);
+}
+
+status_t StreamInHalLocal::read(void *buffer, size_t bytes, size_t *read) {
+    ssize_t readResult = mStream->read(mStream, buffer, bytes);
+    if (readResult > 0) {
+        *read = readResult;
+        return OK;
+    } else {
+        *read = 0;
+        return readResult;
+    }
+}
+
+status_t StreamInHalLocal::getInputFramesLost(uint32_t *framesLost) {
+    *framesLost = mStream->get_input_frames_lost(mStream);
+    return OK;
+}
+
+status_t StreamInHalLocal::getCapturePosition(int64_t *frames, int64_t *time) {
+    if (mStream->get_capture_position == NULL) return INVALID_OPERATION;
+    return mStream->get_capture_position(mStream, frames, time);
+}
+
+status_t StreamInHalLocal::start() {
+    if (mStream->start == NULL) return INVALID_OPERATION;
+    return mStream->start(mStream);
+}
+
+status_t StreamInHalLocal::stop() {
+    if (mStream->stop == NULL) return INVALID_OPERATION;
+    return mStream->stop(mStream);
+}
+
+status_t StreamInHalLocal::createMmapBuffer(int32_t minSizeFrames,
+                                  struct audio_mmap_buffer_info *info) {
+    if (mStream->create_mmap_buffer == NULL) return INVALID_OPERATION;
+    return mStream->create_mmap_buffer(mStream, minSizeFrames, info);
+}
+
+status_t StreamInHalLocal::getMmapPosition(struct audio_mmap_position *position) {
+    if (mStream->get_mmap_position == NULL) return INVALID_OPERATION;
+    return mStream->get_mmap_position(mStream, position);
+}
+
+} // namespace android
diff --git a/media/libaudiohal/StreamHalLocal.h b/media/libaudiohal/StreamHalLocal.h
new file mode 100644
index 0000000..8c96c1f
--- /dev/null
+++ b/media/libaudiohal/StreamHalLocal.h
@@ -0,0 +1,206 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_STREAM_HAL_LOCAL_H
+#define ANDROID_HARDWARE_STREAM_HAL_LOCAL_H
+
+#include <media/audiohal/StreamHalInterface.h>
+
+namespace android {
+
+class DeviceHalLocal;
+
+class StreamHalLocal : public virtual StreamHalInterface
+{
+  public:
+    // Return the sampling rate in Hz - eg. 44100.
+    virtual status_t getSampleRate(uint32_t *rate);
+
+    // Return size of input/output buffer in bytes for this stream - eg. 4800.
+    virtual status_t getBufferSize(size_t *size);
+
+    // Return the channel mask.
+    virtual status_t getChannelMask(audio_channel_mask_t *mask);
+
+    // Return the audio format - e.g. AUDIO_FORMAT_PCM_16_BIT.
+    virtual status_t getFormat(audio_format_t *format);
+
+    // Convenience method.
+    virtual status_t getAudioProperties(
+            uint32_t *sampleRate, audio_channel_mask_t *mask, audio_format_t *format);
+
+    // Set audio stream parameters.
+    virtual status_t setParameters(const String8& kvPairs);
+
+    // Get audio stream parameters.
+    virtual status_t getParameters(const String8& keys, String8 *values);
+
+    // Add or remove the effect on the stream.
+    virtual status_t addEffect(sp<EffectHalInterface> effect);
+    virtual status_t removeEffect(sp<EffectHalInterface> effect);
+
+    // Put the audio hardware input/output into standby mode.
+    virtual status_t standby();
+
+    virtual status_t dump(int fd);
+
+    // Start a stream operating in mmap mode.
+    virtual status_t start() = 0;
+
+    // Stop a stream operating in mmap mode.
+    virtual status_t stop() = 0;
+
+    // Retrieve information on the data buffer in mmap mode.
+    virtual status_t createMmapBuffer(int32_t minSizeFrames,
+                                      struct audio_mmap_buffer_info *info) = 0;
+
+    // Get current read/write position in the mmap buffer
+    virtual status_t getMmapPosition(struct audio_mmap_position *position) = 0;
+
+    // Set the priority of the thread that interacts with the HAL
+    // (must match the priority of the audioflinger's thread that calls 'read' / 'write')
+    virtual status_t setHalThreadPriority(int priority);
+
+  protected:
+    // Subclasses can not be constructed directly by clients.
+    StreamHalLocal(audio_stream_t *stream, sp<DeviceHalLocal> device);
+
+    // The destructor automatically closes the stream.
+    virtual ~StreamHalLocal();
+
+    sp<DeviceHalLocal> mDevice;
+
+  private:
+    audio_stream_t *mStream;
+};
+
+class StreamOutHalLocal : public StreamOutHalInterface, public StreamHalLocal {
+  public:
+    // Return the frame size (number of bytes per sample) of a stream.
+    virtual status_t getFrameSize(size_t *size);
+
+    // Return the audio hardware driver estimated latency in milliseconds.
+    virtual status_t getLatency(uint32_t *latency);
+
+    // Use this method in situations where audio mixing is done in the hardware.
+    virtual status_t setVolume(float left, float right);
+
+    // Write audio buffer to driver.
+    virtual status_t write(const void *buffer, size_t bytes, size_t *written);
+
+    // Return the number of audio frames written by the audio dsp to DAC since
+    // the output has exited standby.
+    virtual status_t getRenderPosition(uint32_t *dspFrames);
+
+    // Get the local time at which the next write to the audio driver will be presented.
+    virtual status_t getNextWriteTimestamp(int64_t *timestamp);
+
+    // Set the callback for notifying completion of non-blocking write and drain.
+    virtual status_t setCallback(wp<StreamOutHalInterfaceCallback> callback);
+
+    // Returns whether pause and resume operations are supported.
+    virtual status_t supportsPauseAndResume(bool *supportsPause, bool *supportsResume);
+
+    // Notifies to the audio driver to resume playback following a pause.
+    virtual status_t pause();
+
+    // Notifies to the audio driver to resume playback following a pause.
+    virtual status_t resume();
+
+    // Returns whether drain operation is supported.
+    virtual status_t supportsDrain(bool *supportsDrain);
+
+    // Requests notification when data buffered by the driver/hardware has been played.
+    virtual status_t drain(bool earlyNotify);
+
+    // Notifies to the audio driver to flush the queued data.
+    virtual status_t flush();
+
+    // Return a recent count of the number of audio frames presented to an external observer.
+    virtual status_t getPresentationPosition(uint64_t *frames, struct timespec *timestamp);
+
+    // Start a stream operating in mmap mode.
+    virtual status_t start();
+
+    // Stop a stream operating in mmap mode.
+    virtual status_t stop();
+
+    // Retrieve information on the data buffer in mmap mode.
+    virtual status_t createMmapBuffer(int32_t minSizeFrames,
+                                      struct audio_mmap_buffer_info *info);
+
+    // Get current read/write position in the mmap buffer
+    virtual status_t getMmapPosition(struct audio_mmap_position *position);
+
+  private:
+    audio_stream_out_t *mStream;
+    wp<StreamOutHalInterfaceCallback> mCallback;
+
+    friend class DeviceHalLocal;
+
+    // Can not be constructed directly by clients.
+    StreamOutHalLocal(audio_stream_out_t *stream, sp<DeviceHalLocal> device);
+
+    virtual ~StreamOutHalLocal();
+
+    static int asyncCallback(stream_callback_event_t event, void *param, void *cookie);
+};
+
+class StreamInHalLocal : public StreamInHalInterface, public StreamHalLocal {
+  public:
+    // Return the frame size (number of bytes per sample) of a stream.
+    virtual status_t getFrameSize(size_t *size);
+
+    // Set the input gain for the audio driver.
+    virtual status_t setGain(float gain);
+
+    // Read audio buffer in from driver.
+    virtual status_t read(void *buffer, size_t bytes, size_t *read);
+
+    // Return the amount of input frames lost in the audio driver.
+    virtual status_t getInputFramesLost(uint32_t *framesLost);
+
+    // Return a recent count of the number of audio frames received and
+    // the clock time associated with that frame count.
+    virtual status_t getCapturePosition(int64_t *frames, int64_t *time);
+
+    // Start a stream operating in mmap mode.
+    virtual status_t start();
+
+    // Stop a stream operating in mmap mode.
+    virtual status_t stop();
+
+    // Retrieve information on the data buffer in mmap mode.
+    virtual status_t createMmapBuffer(int32_t minSizeFrames,
+                                      struct audio_mmap_buffer_info *info);
+
+    // Get current read/write position in the mmap buffer
+    virtual status_t getMmapPosition(struct audio_mmap_position *position);
+
+  private:
+    audio_stream_in_t *mStream;
+
+    friend class DeviceHalLocal;
+
+    // Can not be constructed directly by clients.
+    StreamInHalLocal(audio_stream_in_t *stream, sp<DeviceHalLocal> device);
+
+    virtual ~StreamInHalLocal();
+};
+
+} // namespace android
+
+#endif // ANDROID_HARDWARE_STREAM_HAL_LOCAL_H
diff --git a/media/libaudiohal/include/DeviceHalInterface.h b/media/libaudiohal/include/DeviceHalInterface.h
new file mode 100644
index 0000000..caf01be
--- /dev/null
+++ b/media/libaudiohal/include/DeviceHalInterface.h
@@ -0,0 +1,120 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_DEVICE_HAL_INTERFACE_H
+#define ANDROID_HARDWARE_DEVICE_HAL_INTERFACE_H
+
+#include <system/audio.h>
+#include <utils/Errors.h>
+#include <utils/RefBase.h>
+#include <utils/String8.h>
+
+namespace android {
+
+class StreamInHalInterface;
+class StreamOutHalInterface;
+
+class DeviceHalInterface : public RefBase
+{
+  public:
+    // Sets the value of 'devices' to a bitmask of 1 or more values of audio_devices_t.
+    virtual status_t getSupportedDevices(uint32_t *devices) = 0;
+
+    // Check to see if the audio hardware interface has been initialized.
+    virtual status_t initCheck() = 0;
+
+    // Set the audio volume of a voice call. Range is between 0.0 and 1.0.
+    virtual status_t setVoiceVolume(float volume) = 0;
+
+    // Set the audio volume for all audio activities other than voice call.
+    virtual status_t setMasterVolume(float volume) = 0;
+
+    // Get the current master volume value for the HAL.
+    virtual status_t getMasterVolume(float *volume) = 0;
+
+    // Called when the audio mode changes.
+    virtual status_t setMode(audio_mode_t mode) = 0;
+
+    // Muting control.
+    virtual status_t setMicMute(bool state) = 0;
+    virtual status_t getMicMute(bool *state) = 0;
+    virtual status_t setMasterMute(bool state) = 0;
+    virtual status_t getMasterMute(bool *state) = 0;
+
+    // Set global audio parameters.
+    virtual status_t setParameters(const String8& kvPairs) = 0;
+
+    // Get global audio parameters.
+    virtual status_t getParameters(const String8& keys, String8 *values) = 0;
+
+    // Returns audio input buffer size according to parameters passed.
+    virtual status_t getInputBufferSize(const struct audio_config *config,
+            size_t *size) = 0;
+
+    // Creates and opens the audio hardware output stream. The stream is closed
+    // by releasing all references to the returned object.
+    virtual status_t openOutputStream(
+            audio_io_handle_t handle,
+            audio_devices_t devices,
+            audio_output_flags_t flags,
+            struct audio_config *config,
+            const char *address,
+            sp<StreamOutHalInterface> *outStream) = 0;
+
+    // Creates and opens the audio hardware input stream. The stream is closed
+    // by releasing all references to the returned object.
+    virtual status_t openInputStream(
+            audio_io_handle_t handle,
+            audio_devices_t devices,
+            struct audio_config *config,
+            audio_input_flags_t flags,
+            const char *address,
+            audio_source_t source,
+            sp<StreamInHalInterface> *inStream) = 0;
+
+    // Returns whether createAudioPatch and releaseAudioPatch operations are supported.
+    virtual status_t supportsAudioPatches(bool *supportsPatches) = 0;
+
+    // Creates an audio patch between several source and sink ports.
+    virtual status_t createAudioPatch(
+            unsigned int num_sources,
+            const struct audio_port_config *sources,
+            unsigned int num_sinks,
+            const struct audio_port_config *sinks,
+            audio_patch_handle_t *patch) = 0;
+
+    // Releases an audio patch.
+    virtual status_t releaseAudioPatch(audio_patch_handle_t patch) = 0;
+
+    // Fills the list of supported attributes for a given audio port.
+    virtual status_t getAudioPort(struct audio_port *port) = 0;
+
+    // Set audio port configuration.
+    virtual status_t setAudioPortConfig(const struct audio_port_config *config) = 0;
+
+    virtual status_t dump(int fd) = 0;
+
+  protected:
+    // Subclasses can not be constructed directly by clients.
+    DeviceHalInterface() {}
+
+    // The destructor automatically closes the device.
+    virtual ~DeviceHalInterface() {}
+};
+
+} // namespace android
+
+#endif // ANDROID_HARDWARE_DEVICE_HAL_INTERFACE_H
diff --git a/media/libaudiohal/include/DevicesFactoryHalInterface.h b/media/libaudiohal/include/DevicesFactoryHalInterface.h
new file mode 100644
index 0000000..14af384
--- /dev/null
+++ b/media/libaudiohal/include/DevicesFactoryHalInterface.h
@@ -0,0 +1,44 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_DEVICES_FACTORY_HAL_INTERFACE_H
+#define ANDROID_HARDWARE_DEVICES_FACTORY_HAL_INTERFACE_H
+
+#include <media/audiohal/DeviceHalInterface.h>
+#include <utils/Errors.h>
+#include <utils/RefBase.h>
+
+namespace android {
+
+class DevicesFactoryHalInterface : public RefBase
+{
+  public:
+    // Opens a device with the specified name. To close the device, it is
+    // necessary to release references to the returned object.
+    virtual status_t openDevice(const char *name, sp<DeviceHalInterface> *device) = 0;
+
+    static sp<DevicesFactoryHalInterface> create();
+
+  protected:
+    // Subclasses can not be constructed directly by clients.
+    DevicesFactoryHalInterface() {}
+
+    virtual ~DevicesFactoryHalInterface() {}
+};
+
+} // namespace android
+
+#endif // ANDROID_HARDWARE_DEVICES_FACTORY_HAL_INTERFACE_H
diff --git a/media/libaudiohal/include/EffectBufferHalInterface.h b/media/libaudiohal/include/EffectBufferHalInterface.h
new file mode 100644
index 0000000..6fa7940
--- /dev/null
+++ b/media/libaudiohal/include/EffectBufferHalInterface.h
@@ -0,0 +1,60 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_EFFECT_BUFFER_HAL_INTERFACE_H
+#define ANDROID_HARDWARE_EFFECT_BUFFER_HAL_INTERFACE_H
+
+#include <system/audio_effect.h>
+#include <utils/Errors.h>
+#include <utils/RefBase.h>
+
+namespace android {
+
+// Abstraction for an audio buffer. It may be a "mirror" for
+// a buffer that the effect chain doesn't own, or a buffer owned by
+// the effect chain.
+class EffectBufferHalInterface : public RefBase
+{
+  public:
+    virtual audio_buffer_t* audioBuffer() = 0;
+    virtual void* externalData() const = 0;
+    // To be used when interacting with the code that doesn't know about
+    // "mirrored" buffers.
+    virtual void* ptr() {
+        return externalData() != nullptr ? externalData() : audioBuffer()->raw;
+    }
+
+    virtual void setExternalData(void* external) = 0;
+    virtual void setFrameCount(size_t frameCount) = 0;
+
+    virtual void update() = 0;  // copies data from the external buffer, noop for allocated buffers
+    virtual void commit() = 0;  // copies data to the external buffer, noop for allocated buffers
+    virtual void update(size_t size) = 0;  // copies partial data from external buffer
+    virtual void commit(size_t size) = 0;  // copies partial data to external buffer
+
+    static status_t allocate(size_t size, sp<EffectBufferHalInterface>* buffer);
+    static status_t mirror(void* external, size_t size, sp<EffectBufferHalInterface>* buffer);
+
+  protected:
+    // Subclasses can not be constructed directly by clients.
+    EffectBufferHalInterface() {}
+
+    virtual ~EffectBufferHalInterface() {}
+};
+
+} // namespace android
+
+#endif // ANDROID_HARDWARE_EFFECT_BUFFER_HAL_INTERFACE_H
diff --git a/media/libaudiohal/include/EffectHalInterface.h b/media/libaudiohal/include/EffectHalInterface.h
new file mode 100644
index 0000000..7f9a6fd
--- /dev/null
+++ b/media/libaudiohal/include/EffectHalInterface.h
@@ -0,0 +1,65 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_EFFECT_HAL_INTERFACE_H
+#define ANDROID_HARDWARE_EFFECT_HAL_INTERFACE_H
+
+#include <media/audiohal/EffectBufferHalInterface.h>
+#include <system/audio_effect.h>
+#include <utils/Errors.h>
+#include <utils/RefBase.h>
+
+namespace android {
+
+class EffectHalInterface : public RefBase
+{
+  public:
+    // Set the input buffer.
+    virtual status_t setInBuffer(const sp<EffectBufferHalInterface>& buffer) = 0;
+
+    // Set the output buffer.
+    virtual status_t setOutBuffer(const sp<EffectBufferHalInterface>& buffer) = 0;
+
+    // Effect process function. Takes input samples as specified
+    // in input buffer descriptor and output processed samples as specified
+    // in output buffer descriptor.
+    virtual status_t process() = 0;
+
+    // Process reverse stream function. This function is used to pass
+    // a reference stream to the effect engine.
+    virtual status_t processReverse() = 0;
+
+    // Send a command and receive a response to/from effect engine.
+    virtual status_t command(uint32_t cmdCode, uint32_t cmdSize, void *pCmdData,
+            uint32_t *replySize, void *pReplyData) = 0;
+
+    // Returns the effect descriptor.
+    virtual status_t getDescriptor(effect_descriptor_t *pDescriptor) = 0;
+
+    // Free resources on the remote side.
+    virtual status_t close() = 0;
+
+  protected:
+    // Subclasses can not be constructed directly by clients.
+    EffectHalInterface() {}
+
+    // The destructor automatically releases the effect.
+    virtual ~EffectHalInterface() {}
+};
+
+} // namespace android
+
+#endif // ANDROID_HARDWARE_EFFECT_HAL_INTERFACE_H
diff --git a/media/libaudiohal/include/EffectsFactoryHalInterface.h b/media/libaudiohal/include/EffectsFactoryHalInterface.h
new file mode 100644
index 0000000..a616e86
--- /dev/null
+++ b/media/libaudiohal/include/EffectsFactoryHalInterface.h
@@ -0,0 +1,63 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_EFFECTS_FACTORY_HAL_INTERFACE_H
+#define ANDROID_HARDWARE_EFFECTS_FACTORY_HAL_INTERFACE_H
+
+#include <media/audiohal/EffectHalInterface.h>
+#include <system/audio_effect.h>
+#include <utils/Errors.h>
+#include <utils/RefBase.h>
+
+namespace android {
+
+class EffectsFactoryHalInterface : public RefBase
+{
+  public:
+    // Returns the number of different effects in all loaded libraries.
+    virtual status_t queryNumberEffects(uint32_t *pNumEffects) = 0;
+
+    // Returns a descriptor of the next available effect.
+    virtual status_t getDescriptor(uint32_t index,
+            effect_descriptor_t *pDescriptor) = 0;
+
+    virtual status_t getDescriptor(const effect_uuid_t *pEffectUuid,
+            effect_descriptor_t *pDescriptor) = 0;
+
+    // Creates an effect engine of the specified type.
+    // To release the effect engine, it is necessary to release references
+    // to the returned effect object.
+    virtual status_t createEffect(const effect_uuid_t *pEffectUuid,
+            int32_t sessionId, int32_t ioId,
+            sp<EffectHalInterface> *effect) = 0;
+
+    virtual status_t dumpEffects(int fd) = 0;
+
+    static sp<EffectsFactoryHalInterface> create();
+
+    // Helper function to compare effect uuid to EFFECT_UUID_NULL.
+    static bool isNullUuid(const effect_uuid_t *pEffectUuid);
+
+  protected:
+    // Subclasses can not be constructed directly by clients.
+    EffectsFactoryHalInterface() {}
+
+    virtual ~EffectsFactoryHalInterface() {}
+};
+
+} // namespace android
+
+#endif // ANDROID_HARDWARE_EFFECTS_FACTORY_HAL_INTERFACE_H
diff --git a/media/libaudiohal/include/StreamHalInterface.h b/media/libaudiohal/include/StreamHalInterface.h
new file mode 100644
index 0000000..7419c34
--- /dev/null
+++ b/media/libaudiohal/include/StreamHalInterface.h
@@ -0,0 +1,170 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_STREAM_HAL_INTERFACE_H
+#define ANDROID_HARDWARE_STREAM_HAL_INTERFACE_H
+
+#include <media/audiohal/EffectHalInterface.h>
+#include <system/audio.h>
+#include <utils/Errors.h>
+#include <utils/RefBase.h>
+#include <utils/String8.h>
+
+namespace android {
+
+class StreamHalInterface : public virtual RefBase
+{
+  public:
+    // Return the sampling rate in Hz - eg. 44100.
+    virtual status_t getSampleRate(uint32_t *rate) = 0;
+
+    // Return size of input/output buffer in bytes for this stream - eg. 4800.
+    virtual status_t getBufferSize(size_t *size) = 0;
+
+    // Return the channel mask.
+    virtual status_t getChannelMask(audio_channel_mask_t *mask) = 0;
+
+    // Return the audio format - e.g. AUDIO_FORMAT_PCM_16_BIT.
+    virtual status_t getFormat(audio_format_t *format) = 0;
+
+    // Convenience method.
+    virtual status_t getAudioProperties(
+            uint32_t *sampleRate, audio_channel_mask_t *mask, audio_format_t *format) = 0;
+
+    // Set audio stream parameters.
+    virtual status_t setParameters(const String8& kvPairs) = 0;
+
+    // Get audio stream parameters.
+    virtual status_t getParameters(const String8& keys, String8 *values) = 0;
+
+    // Return the frame size (number of bytes per sample) of a stream.
+    virtual status_t getFrameSize(size_t *size) = 0;
+
+    // Add or remove the effect on the stream.
+    virtual status_t addEffect(sp<EffectHalInterface> effect) = 0;
+    virtual status_t removeEffect(sp<EffectHalInterface> effect) = 0;
+
+    // Put the audio hardware input/output into standby mode.
+    virtual status_t standby() = 0;
+
+    virtual status_t dump(int fd) = 0;
+
+    // Start a stream operating in mmap mode.
+    virtual status_t start() = 0;
+
+    // Stop a stream operating in mmap mode.
+    virtual status_t stop() = 0;
+
+    // Retrieve information on the data buffer in mmap mode.
+    virtual status_t createMmapBuffer(int32_t minSizeFrames,
+                                      struct audio_mmap_buffer_info *info) = 0;
+
+    // Get current read/write position in the mmap buffer
+    virtual status_t getMmapPosition(struct audio_mmap_position *position) = 0;
+
+    // Set the priority of the thread that interacts with the HAL
+    // (must match the priority of the audioflinger's thread that calls 'read' / 'write')
+    virtual status_t setHalThreadPriority(int priority) = 0;
+
+  protected:
+    // Subclasses can not be constructed directly by clients.
+    StreamHalInterface() {}
+
+    // The destructor automatically closes the stream.
+    virtual ~StreamHalInterface() {}
+};
+
+class StreamOutHalInterfaceCallback : public virtual RefBase {
+  public:
+    virtual void onWriteReady() {}
+    virtual void onDrainReady() {}
+    virtual void onError() {}
+
+  protected:
+    StreamOutHalInterfaceCallback() {}
+    virtual ~StreamOutHalInterfaceCallback() {}
+};
+
+class StreamOutHalInterface : public virtual StreamHalInterface {
+  public:
+    // Return the audio hardware driver estimated latency in milliseconds.
+    virtual status_t getLatency(uint32_t *latency) = 0;
+
+    // Use this method in situations where audio mixing is done in the hardware.
+    virtual status_t setVolume(float left, float right) = 0;
+
+    // Write audio buffer to driver.
+    virtual status_t write(const void *buffer, size_t bytes, size_t *written) = 0;
+
+    // Return the number of audio frames written by the audio dsp to DAC since
+    // the output has exited standby.
+    virtual status_t getRenderPosition(uint32_t *dspFrames) = 0;
+
+    // Get the local time at which the next write to the audio driver will be presented.
+    virtual status_t getNextWriteTimestamp(int64_t *timestamp) = 0;
+
+    // Set the callback for notifying completion of non-blocking write and drain.
+    // The callback must be owned by someone else. The output stream does not own it
+    // to avoid strong pointer loops.
+    virtual status_t setCallback(wp<StreamOutHalInterfaceCallback> callback) = 0;
+
+    // Returns whether pause and resume operations are supported.
+    virtual status_t supportsPauseAndResume(bool *supportsPause, bool *supportsResume) = 0;
+
+    // Notifies to the audio driver to resume playback following a pause.
+    virtual status_t pause() = 0;
+
+    // Notifies to the audio driver to resume playback following a pause.
+    virtual status_t resume() = 0;
+
+    // Returns whether drain operation is supported.
+    virtual status_t supportsDrain(bool *supportsDrain) = 0;
+
+    // Requests notification when data buffered by the driver/hardware has been played.
+    virtual status_t drain(bool earlyNotify) = 0;
+
+    // Notifies to the audio driver to flush the queued data.
+    virtual status_t flush() = 0;
+
+    // Return a recent count of the number of audio frames presented to an external observer.
+    virtual status_t getPresentationPosition(uint64_t *frames, struct timespec *timestamp) = 0;
+
+  protected:
+    virtual ~StreamOutHalInterface() {}
+};
+
+class StreamInHalInterface : public virtual StreamHalInterface {
+  public:
+    // Set the input gain for the audio driver.
+    virtual status_t setGain(float gain) = 0;
+
+    // Read audio buffer in from driver.
+    virtual status_t read(void *buffer, size_t bytes, size_t *read) = 0;
+
+    // Return the amount of input frames lost in the audio driver.
+    virtual status_t getInputFramesLost(uint32_t *framesLost) = 0;
+
+    // Return a recent count of the number of audio frames received and
+    // the clock time associated with that frame count.
+    virtual status_t getCapturePosition(int64_t *frames, int64_t *time) = 0;
+
+  protected:
+    virtual ~StreamInHalInterface() {}
+};
+
+} // namespace android
+
+#endif // ANDROID_HARDWARE_STREAM_HAL_INTERFACE_H
diff --git a/media/libaudiohal/include/hidl/HalDeathHandler.h b/media/libaudiohal/include/hidl/HalDeathHandler.h
new file mode 100644
index 0000000..c9b7084
--- /dev/null
+++ b/media/libaudiohal/include/hidl/HalDeathHandler.h
@@ -0,0 +1,62 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_HIDL_HAL_DEATH_HANDLER_H
+#define ANDROID_HARDWARE_HIDL_HAL_DEATH_HANDLER_H
+
+#include <functional>
+#include <mutex>
+#include <unordered_map>
+
+#include <hidl/HidlSupport.h>
+#include <utils/Singleton.h>
+
+using android::hardware::hidl_death_recipient;
+using android::hidl::base::V1_0::IBase;
+
+namespace android {
+
+class HalDeathHandler : public hidl_death_recipient, private Singleton<HalDeathHandler> {
+  public:
+    typedef std::function<void()> AtExitHandler;
+
+    // Note that the exit handler gets called using a thread from
+    // RPC threadpool, thus it needs to be thread-safe.
+    void registerAtExitHandler(void* cookie, AtExitHandler handler);
+    void unregisterAtExitHandler(void* cookie);
+
+    // hidl_death_recipient
+    virtual void serviceDied(uint64_t cookie, const wp<IBase>& who);
+
+    // Used both for (un)registering handlers, and for passing to
+    // '(un)linkToDeath'.
+    static sp<HalDeathHandler> getInstance();
+
+  private:
+    friend class Singleton<HalDeathHandler>;
+    typedef std::unordered_map<void*, AtExitHandler> Handlers;
+
+    HalDeathHandler();
+    virtual ~HalDeathHandler();
+
+    sp<HalDeathHandler> mSelf;  // Allows the singleton instance to live forever.
+    std::mutex mHandlersLock;
+    Handlers mHandlers;
+};
+
+}  // namespace android
+
+#endif // ANDROID_HARDWARE_HIDL_HAL_DEATH_HANDLER_H
diff --git a/media/libaudioprocessing/Android.mk b/media/libaudioprocessing/Android.mk
new file mode 100644
index 0000000..c850984
--- /dev/null
+++ b/media/libaudioprocessing/Android.mk
@@ -0,0 +1,39 @@
+LOCAL_PATH := $(call my-dir)
+
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES := \
+    AudioMixer.cpp.arm \
+    AudioResampler.cpp.arm \
+    AudioResamplerCubic.cpp.arm \
+    AudioResamplerSinc.cpp.arm \
+    AudioResamplerDyn.cpp.arm \
+    BufferProviders.cpp \
+    RecordBufferConverter.cpp \
+
+LOCAL_C_INCLUDES := \
+    $(TOP) \
+    $(call include-path-for, audio-utils) \
+    $(LOCAL_PATH)/include \
+
+LOCAL_EXPORT_C_INCLUDE_DIRS := $(LOCAL_PATH)/include
+
+LOCAL_SHARED_LIBRARIES := \
+    libaudiohal \
+    libaudioutils \
+    libcutils \
+    liblog \
+    libnbaio \
+    libsonic \
+    libutils \
+
+LOCAL_MODULE := libaudioprocessing
+
+LOCAL_CFLAGS := -Werror -Wall
+
+# uncomment to disable NEON on architectures that actually do support NEON, for benchmarking
+#LOCAL_CFLAGS += -DUSE_NEON=false
+
+include $(BUILD_SHARED_LIBRARY)
+
+include $(call all-makefiles-under,$(LOCAL_PATH))
diff --git a/media/libaudioprocessing/AudioMixer.cpp b/media/libaudioprocessing/AudioMixer.cpp
new file mode 100644
index 0000000..a7d9f0f
--- /dev/null
+++ b/media/libaudioprocessing/AudioMixer.cpp
@@ -0,0 +1,2085 @@
+/*
+**
+** Copyright 2007, The Android Open Source Project
+**
+** Licensed under the Apache License, Version 2.0 (the "License");
+** you may not use this file except in compliance with the License.
+** You may obtain a copy of the License at
+**
+**     http://www.apache.org/licenses/LICENSE-2.0
+**
+** Unless required by applicable law or agreed to in writing, software
+** distributed under the License is distributed on an "AS IS" BASIS,
+** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+** See the License for the specific language governing permissions and
+** limitations under the License.
+*/
+
+#define LOG_TAG "AudioMixer"
+//#define LOG_NDEBUG 0
+
+#include <stdint.h>
+#include <string.h>
+#include <stdlib.h>
+#include <math.h>
+#include <sys/types.h>
+
+#include <utils/Errors.h>
+#include <utils/Log.h>
+
+#include <cutils/bitops.h>
+#include <cutils/compiler.h>
+#include <utils/Debug.h>
+
+#include <system/audio.h>
+
+#include <audio_utils/primitives.h>
+#include <audio_utils/format.h>
+#include <media/AudioMixer.h>
+
+#include "AudioMixerOps.h"
+
+// The FCC_2 macro refers to the Fixed Channel Count of 2 for the legacy integer mixer.
+#ifndef FCC_2
+#define FCC_2 2
+#endif
+
+// Look for MONO_HACK for any Mono hack involving legacy mono channel to
+// stereo channel conversion.
+
+/* VERY_VERY_VERBOSE_LOGGING will show exactly which process hook and track hook is
+ * being used. This is a considerable amount of log spam, so don't enable unless you
+ * are verifying the hook based code.
+ */
+//#define VERY_VERY_VERBOSE_LOGGING
+#ifdef VERY_VERY_VERBOSE_LOGGING
+#define ALOGVV ALOGV
+//define ALOGVV printf  // for test-mixer.cpp
+#else
+#define ALOGVV(a...) do { } while (0)
+#endif
+
+#ifndef ARRAY_SIZE
+#define ARRAY_SIZE(x) (sizeof(x)/sizeof((x)[0]))
+#endif
+
+// TODO: Move these macro/inlines to a header file.
+template <typename T>
+static inline
+T max(const T& x, const T& y) {
+    return x > y ? x : y;
+}
+
+// Set kUseNewMixer to true to use the new mixer engine always. Otherwise the
+// original code will be used for stereo sinks, the new mixer for multichannel.
+static const bool kUseNewMixer = true;
+
+// Set kUseFloat to true to allow floating input into the mixer engine.
+// If kUseNewMixer is false, this is ignored or may be overridden internally
+// because of downmix/upmix support.
+static const bool kUseFloat = true;
+
+// Set to default copy buffer size in frames for input processing.
+static const size_t kCopyBufferFrameCount = 256;
+
+namespace android {
+
+// ----------------------------------------------------------------------------
+
+template <typename T>
+T min(const T& a, const T& b)
+{
+    return a < b ? a : b;
+}
+
+// ----------------------------------------------------------------------------
+
+// Ensure mConfiguredNames bitmask is initialized properly on all architectures.
+// The value of 1 << x is undefined in C when x >= 32.
+
+AudioMixer::AudioMixer(size_t frameCount, uint32_t sampleRate, uint32_t maxNumTracks)
+    :   mTrackNames(0), mConfiguredNames((maxNumTracks >= 32 ? 0 : 1 << maxNumTracks) - 1),
+        mSampleRate(sampleRate)
+{
+    ALOG_ASSERT(maxNumTracks <= MAX_NUM_TRACKS, "maxNumTracks %u > MAX_NUM_TRACKS %u",
+            maxNumTracks, MAX_NUM_TRACKS);
+
+    // AudioMixer is not yet capable of more than 32 active track inputs
+    ALOG_ASSERT(32 >= MAX_NUM_TRACKS, "bad MAX_NUM_TRACKS %d", MAX_NUM_TRACKS);
+
+    pthread_once(&sOnceControl, &sInitRoutine);
+
+    mState.enabledTracks= 0;
+    mState.needsChanged = 0;
+    mState.frameCount   = frameCount;
+    mState.hook         = process__nop;
+    mState.outputTemp   = NULL;
+    mState.resampleTemp = NULL;
+    mState.mLog         = &mDummyLog;
+    // mState.reserved
+
+    // FIXME Most of the following initialization is probably redundant since
+    // tracks[i] should only be referenced if (mTrackNames & (1 << i)) != 0
+    // and mTrackNames is initially 0.  However, leave it here until that's verified.
+    track_t* t = mState.tracks;
+    for (unsigned i=0 ; i < MAX_NUM_TRACKS ; i++) {
+        t->resampler = NULL;
+        t->downmixerBufferProvider = NULL;
+        t->mReformatBufferProvider = NULL;
+        t->mTimestretchBufferProvider = NULL;
+        t++;
+    }
+
+}
+
+AudioMixer::~AudioMixer()
+{
+    track_t* t = mState.tracks;
+    for (unsigned i=0 ; i < MAX_NUM_TRACKS ; i++) {
+        delete t->resampler;
+        delete t->downmixerBufferProvider;
+        delete t->mReformatBufferProvider;
+        delete t->mTimestretchBufferProvider;
+        t++;
+    }
+    delete [] mState.outputTemp;
+    delete [] mState.resampleTemp;
+}
+
+void AudioMixer::setLog(NBLog::Writer *log)
+{
+    mState.mLog = log;
+}
+
+static inline audio_format_t selectMixerInFormat(audio_format_t inputFormat __unused) {
+    return kUseFloat && kUseNewMixer ? AUDIO_FORMAT_PCM_FLOAT : AUDIO_FORMAT_PCM_16_BIT;
+}
+
+int AudioMixer::getTrackName(audio_channel_mask_t channelMask,
+        audio_format_t format, int sessionId)
+{
+    if (!isValidPcmTrackFormat(format)) {
+        ALOGE("AudioMixer::getTrackName invalid format (%#x)", format);
+        return -1;
+    }
+    uint32_t names = (~mTrackNames) & mConfiguredNames;
+    if (names != 0) {
+        int n = __builtin_ctz(names);
+        ALOGV("add track (%d)", n);
+        // assume default parameters for the track, except where noted below
+        track_t* t = &mState.tracks[n];
+        t->needs = 0;
+
+        // Integer volume.
+        // Currently integer volume is kept for the legacy integer mixer.
+        // Will be removed when the legacy mixer path is removed.
+        t->volume[0] = UNITY_GAIN_INT;
+        t->volume[1] = UNITY_GAIN_INT;
+        t->prevVolume[0] = UNITY_GAIN_INT << 16;
+        t->prevVolume[1] = UNITY_GAIN_INT << 16;
+        t->volumeInc[0] = 0;
+        t->volumeInc[1] = 0;
+        t->auxLevel = 0;
+        t->auxInc = 0;
+        t->prevAuxLevel = 0;
+
+        // Floating point volume.
+        t->mVolume[0] = UNITY_GAIN_FLOAT;
+        t->mVolume[1] = UNITY_GAIN_FLOAT;
+        t->mPrevVolume[0] = UNITY_GAIN_FLOAT;
+        t->mPrevVolume[1] = UNITY_GAIN_FLOAT;
+        t->mVolumeInc[0] = 0.;
+        t->mVolumeInc[1] = 0.;
+        t->mAuxLevel = 0.;
+        t->mAuxInc = 0.;
+        t->mPrevAuxLevel = 0.;
+
+        // no initialization needed
+        // t->frameCount
+        t->channelCount = audio_channel_count_from_out_mask(channelMask);
+        t->enabled = false;
+        ALOGV_IF(audio_channel_mask_get_bits(channelMask) != AUDIO_CHANNEL_OUT_STEREO,
+                "Non-stereo channel mask: %d\n", channelMask);
+        t->channelMask = channelMask;
+        t->sessionId = sessionId;
+        // setBufferProvider(name, AudioBufferProvider *) is required before enable(name)
+        t->bufferProvider = NULL;
+        t->buffer.raw = NULL;
+        // no initialization needed
+        // t->buffer.frameCount
+        t->hook = NULL;
+        t->in = NULL;
+        t->resampler = NULL;
+        t->sampleRate = mSampleRate;
+        // setParameter(name, TRACK, MAIN_BUFFER, mixBuffer) is required before enable(name)
+        t->mainBuffer = NULL;
+        t->auxBuffer = NULL;
+        t->mInputBufferProvider = NULL;
+        t->mReformatBufferProvider = NULL;
+        t->downmixerBufferProvider = NULL;
+        t->mPostDownmixReformatBufferProvider = NULL;
+        t->mTimestretchBufferProvider = NULL;
+        t->mMixerFormat = AUDIO_FORMAT_PCM_16_BIT;
+        t->mFormat = format;
+        t->mMixerInFormat = selectMixerInFormat(format);
+        t->mDownmixRequiresFormat = AUDIO_FORMAT_INVALID; // no format required
+        t->mMixerChannelMask = audio_channel_mask_from_representation_and_bits(
+                AUDIO_CHANNEL_REPRESENTATION_POSITION, AUDIO_CHANNEL_OUT_STEREO);
+        t->mMixerChannelCount = audio_channel_count_from_out_mask(t->mMixerChannelMask);
+        t->mPlaybackRate = AUDIO_PLAYBACK_RATE_DEFAULT;
+        // Check the downmixing (or upmixing) requirements.
+        status_t status = t->prepareForDownmix();
+        if (status != OK) {
+            ALOGE("AudioMixer::getTrackName invalid channelMask (%#x)", channelMask);
+            return -1;
+        }
+        // prepareForDownmix() may change mDownmixRequiresFormat
+        ALOGVV("mMixerFormat:%#x  mMixerInFormat:%#x\n", t->mMixerFormat, t->mMixerInFormat);
+        t->prepareForReformat();
+        mTrackNames |= 1 << n;
+        return TRACK0 + n;
+    }
+    ALOGE("AudioMixer::getTrackName out of available tracks");
+    return -1;
+}
+
+void AudioMixer::invalidateState(uint32_t mask)
+{
+    if (mask != 0) {
+        mState.needsChanged |= mask;
+        mState.hook = process__validate;
+    }
+ }
+
+// Called when channel masks have changed for a track name
+// TODO: Fix DownmixerBufferProvider not to (possibly) change mixer input format,
+// which will simplify this logic.
+bool AudioMixer::setChannelMasks(int name,
+        audio_channel_mask_t trackChannelMask, audio_channel_mask_t mixerChannelMask) {
+    track_t &track = mState.tracks[name];
+
+    if (trackChannelMask == track.channelMask
+            && mixerChannelMask == track.mMixerChannelMask) {
+        return false;  // no need to change
+    }
+    // always recompute for both channel masks even if only one has changed.
+    const uint32_t trackChannelCount = audio_channel_count_from_out_mask(trackChannelMask);
+    const uint32_t mixerChannelCount = audio_channel_count_from_out_mask(mixerChannelMask);
+    const bool mixerChannelCountChanged = track.mMixerChannelCount != mixerChannelCount;
+
+    ALOG_ASSERT((trackChannelCount <= MAX_NUM_CHANNELS_TO_DOWNMIX)
+            && trackChannelCount
+            && mixerChannelCount);
+    track.channelMask = trackChannelMask;
+    track.channelCount = trackChannelCount;
+    track.mMixerChannelMask = mixerChannelMask;
+    track.mMixerChannelCount = mixerChannelCount;
+
+    // channel masks have changed, does this track need a downmixer?
+    // update to try using our desired format (if we aren't already using it)
+    const audio_format_t prevDownmixerFormat = track.mDownmixRequiresFormat;
+    const status_t status = mState.tracks[name].prepareForDownmix();
+    ALOGE_IF(status != OK,
+            "prepareForDownmix error %d, track channel mask %#x, mixer channel mask %#x",
+            status, track.channelMask, track.mMixerChannelMask);
+
+    if (prevDownmixerFormat != track.mDownmixRequiresFormat) {
+        track.prepareForReformat(); // because of downmixer, track format may change!
+    }
+
+    if (track.resampler && mixerChannelCountChanged) {
+        // resampler channels may have changed.
+        const uint32_t resetToSampleRate = track.sampleRate;
+        delete track.resampler;
+        track.resampler = NULL;
+        track.sampleRate = mSampleRate; // without resampler, track rate is device sample rate.
+        // recreate the resampler with updated format, channels, saved sampleRate.
+        track.setResampler(resetToSampleRate /*trackSampleRate*/, mSampleRate /*devSampleRate*/);
+    }
+    return true;
+}
+
+void AudioMixer::track_t::unprepareForDownmix() {
+    ALOGV("AudioMixer::unprepareForDownmix(%p)", this);
+
+    mDownmixRequiresFormat = AUDIO_FORMAT_INVALID;
+    if (downmixerBufferProvider != NULL) {
+        // this track had previously been configured with a downmixer, delete it
+        ALOGV(" deleting old downmixer");
+        delete downmixerBufferProvider;
+        downmixerBufferProvider = NULL;
+        reconfigureBufferProviders();
+    } else {
+        ALOGV(" nothing to do, no downmixer to delete");
+    }
+}
+
+status_t AudioMixer::track_t::prepareForDownmix()
+{
+    ALOGV("AudioMixer::prepareForDownmix(%p) with mask 0x%x",
+            this, channelMask);
+
+    // discard the previous downmixer if there was one
+    unprepareForDownmix();
+    // MONO_HACK Only remix (upmix or downmix) if the track and mixer/device channel masks
+    // are not the same and not handled internally, as mono -> stereo currently is.
+    if (channelMask == mMixerChannelMask
+            || (channelMask == AUDIO_CHANNEL_OUT_MONO
+                    && mMixerChannelMask == AUDIO_CHANNEL_OUT_STEREO)) {
+        return NO_ERROR;
+    }
+    // DownmixerBufferProvider is only used for position masks.
+    if (audio_channel_mask_get_representation(channelMask)
+                == AUDIO_CHANNEL_REPRESENTATION_POSITION
+            && DownmixerBufferProvider::isMultichannelCapable()) {
+        DownmixerBufferProvider* pDbp = new DownmixerBufferProvider(channelMask,
+                mMixerChannelMask,
+                AUDIO_FORMAT_PCM_16_BIT /* TODO: use mMixerInFormat, now only PCM 16 */,
+                sampleRate, sessionId, kCopyBufferFrameCount);
+
+        if (pDbp->isValid()) { // if constructor completed properly
+            mDownmixRequiresFormat = AUDIO_FORMAT_PCM_16_BIT; // PCM 16 bit required for downmix
+            downmixerBufferProvider = pDbp;
+            reconfigureBufferProviders();
+            return NO_ERROR;
+        }
+        delete pDbp;
+    }
+
+    // Effect downmixer does not accept the channel conversion.  Let's use our remixer.
+    RemixBufferProvider* pRbp = new RemixBufferProvider(channelMask,
+            mMixerChannelMask, mMixerInFormat, kCopyBufferFrameCount);
+    // Remix always finds a conversion whereas Downmixer effect above may fail.
+    downmixerBufferProvider = pRbp;
+    reconfigureBufferProviders();
+    return NO_ERROR;
+}
+
+void AudioMixer::track_t::unprepareForReformat() {
+    ALOGV("AudioMixer::unprepareForReformat(%p)", this);
+    bool requiresReconfigure = false;
+    if (mReformatBufferProvider != NULL) {
+        delete mReformatBufferProvider;
+        mReformatBufferProvider = NULL;
+        requiresReconfigure = true;
+    }
+    if (mPostDownmixReformatBufferProvider != NULL) {
+        delete mPostDownmixReformatBufferProvider;
+        mPostDownmixReformatBufferProvider = NULL;
+        requiresReconfigure = true;
+    }
+    if (requiresReconfigure) {
+        reconfigureBufferProviders();
+    }
+}
+
+status_t AudioMixer::track_t::prepareForReformat()
+{
+    ALOGV("AudioMixer::prepareForReformat(%p) with format %#x", this, mFormat);
+    // discard previous reformatters
+    unprepareForReformat();
+    // only configure reformatters as needed
+    const audio_format_t targetFormat = mDownmixRequiresFormat != AUDIO_FORMAT_INVALID
+            ? mDownmixRequiresFormat : mMixerInFormat;
+    bool requiresReconfigure = false;
+    if (mFormat != targetFormat) {
+        mReformatBufferProvider = new ReformatBufferProvider(
+                audio_channel_count_from_out_mask(channelMask),
+                mFormat,
+                targetFormat,
+                kCopyBufferFrameCount);
+        requiresReconfigure = true;
+    }
+    if (targetFormat != mMixerInFormat) {
+        mPostDownmixReformatBufferProvider = new ReformatBufferProvider(
+                audio_channel_count_from_out_mask(mMixerChannelMask),
+                targetFormat,
+                mMixerInFormat,
+                kCopyBufferFrameCount);
+        requiresReconfigure = true;
+    }
+    if (requiresReconfigure) {
+        reconfigureBufferProviders();
+    }
+    return NO_ERROR;
+}
+
+void AudioMixer::track_t::reconfigureBufferProviders()
+{
+    bufferProvider = mInputBufferProvider;
+    if (mReformatBufferProvider) {
+        mReformatBufferProvider->setBufferProvider(bufferProvider);
+        bufferProvider = mReformatBufferProvider;
+    }
+    if (downmixerBufferProvider) {
+        downmixerBufferProvider->setBufferProvider(bufferProvider);
+        bufferProvider = downmixerBufferProvider;
+    }
+    if (mPostDownmixReformatBufferProvider) {
+        mPostDownmixReformatBufferProvider->setBufferProvider(bufferProvider);
+        bufferProvider = mPostDownmixReformatBufferProvider;
+    }
+    if (mTimestretchBufferProvider) {
+        mTimestretchBufferProvider->setBufferProvider(bufferProvider);
+        bufferProvider = mTimestretchBufferProvider;
+    }
+}
+
+void AudioMixer::deleteTrackName(int name)
+{
+    ALOGV("AudioMixer::deleteTrackName(%d)", name);
+    name -= TRACK0;
+    LOG_ALWAYS_FATAL_IF(name < 0 || name >= (int)MAX_NUM_TRACKS, "bad track name %d", name);
+    ALOGV("deleteTrackName(%d)", name);
+    track_t& track(mState.tracks[ name ]);
+    if (track.enabled) {
+        track.enabled = false;
+        invalidateState(1<<name);
+    }
+    // delete the resampler
+    delete track.resampler;
+    track.resampler = NULL;
+    // delete the downmixer
+    mState.tracks[name].unprepareForDownmix();
+    // delete the reformatter
+    mState.tracks[name].unprepareForReformat();
+    // delete the timestretch provider
+    delete track.mTimestretchBufferProvider;
+    track.mTimestretchBufferProvider = NULL;
+    mTrackNames &= ~(1<<name);
+}
+
+void AudioMixer::enable(int name)
+{
+    name -= TRACK0;
+    ALOG_ASSERT(uint32_t(name) < MAX_NUM_TRACKS, "bad track name %d", name);
+    track_t& track = mState.tracks[name];
+
+    if (!track.enabled) {
+        track.enabled = true;
+        ALOGV("enable(%d)", name);
+        invalidateState(1 << name);
+    }
+}
+
+void AudioMixer::disable(int name)
+{
+    name -= TRACK0;
+    ALOG_ASSERT(uint32_t(name) < MAX_NUM_TRACKS, "bad track name %d", name);
+    track_t& track = mState.tracks[name];
+
+    if (track.enabled) {
+        track.enabled = false;
+        ALOGV("disable(%d)", name);
+        invalidateState(1 << name);
+    }
+}
+
+/* Sets the volume ramp variables for the AudioMixer.
+ *
+ * The volume ramp variables are used to transition from the previous
+ * volume to the set volume.  ramp controls the duration of the transition.
+ * Its value is typically one state framecount period, but may also be 0,
+ * meaning "immediate."
+ *
+ * FIXME: 1) Volume ramp is enabled only if there is a nonzero integer increment
+ * even if there is a nonzero floating point increment (in that case, the volume
+ * change is immediate).  This restriction should be changed when the legacy mixer
+ * is removed (see #2).
+ * FIXME: 2) Integer volume variables are used for Legacy mixing and should be removed
+ * when no longer needed.
+ *
+ * @param newVolume set volume target in floating point [0.0, 1.0].
+ * @param ramp number of frames to increment over. if ramp is 0, the volume
+ * should be set immediately.  Currently ramp should not exceed 65535 (frames).
+ * @param pIntSetVolume pointer to the U4.12 integer target volume, set on return.
+ * @param pIntPrevVolume pointer to the U4.28 integer previous volume, set on return.
+ * @param pIntVolumeInc pointer to the U4.28 increment per output audio frame, set on return.
+ * @param pSetVolume pointer to the float target volume, set on return.
+ * @param pPrevVolume pointer to the float previous volume, set on return.
+ * @param pVolumeInc pointer to the float increment per output audio frame, set on return.
+ * @return true if the volume has changed, false if volume is same.
+ */
+static inline bool setVolumeRampVariables(float newVolume, int32_t ramp,
+        int16_t *pIntSetVolume, int32_t *pIntPrevVolume, int32_t *pIntVolumeInc,
+        float *pSetVolume, float *pPrevVolume, float *pVolumeInc) {
+    // check floating point volume to see if it is identical to the previously
+    // set volume.
+    // We do not use a tolerance here (and reject changes too small)
+    // as it may be confusing to use a different value than the one set.
+    // If the resulting volume is too small to ramp, it is a direct set of the volume.
+    if (newVolume == *pSetVolume) {
+        return false;
+    }
+    if (newVolume < 0) {
+        newVolume = 0; // should not have negative volumes
+    } else {
+        switch (fpclassify(newVolume)) {
+        case FP_SUBNORMAL:
+        case FP_NAN:
+            newVolume = 0;
+            break;
+        case FP_ZERO:
+            break; // zero volume is fine
+        case FP_INFINITE:
+            // Infinite volume could be handled consistently since
+            // floating point math saturates at infinities,
+            // but we limit volume to unity gain float.
+            // ramp = 0; break;
+            //
+            newVolume = AudioMixer::UNITY_GAIN_FLOAT;
+            break;
+        case FP_NORMAL:
+        default:
+            // Floating point does not have problems with overflow wrap
+            // that integer has.  However, we limit the volume to
+            // unity gain here.
+            // TODO: Revisit the volume limitation and perhaps parameterize.
+            if (newVolume > AudioMixer::UNITY_GAIN_FLOAT) {
+                newVolume = AudioMixer::UNITY_GAIN_FLOAT;
+            }
+            break;
+        }
+    }
+
+    // set floating point volume ramp
+    if (ramp != 0) {
+        // when the ramp completes, *pPrevVolume is set to *pSetVolume, so there
+        // is no computational mismatch; hence equality is checked here.
+        ALOGD_IF(*pPrevVolume != *pSetVolume, "previous float ramp hasn't finished,"
+                " prev:%f  set_to:%f", *pPrevVolume, *pSetVolume);
+        const float inc = (newVolume - *pPrevVolume) / ramp; // could be inf, nan, subnormal
+        const float maxv = max(newVolume, *pPrevVolume); // could be inf, cannot be nan, subnormal
+
+        if (isnormal(inc) // inc must be a normal number (no subnormals, infinite, nan)
+                && maxv + inc != maxv) { // inc must make forward progress
+            *pVolumeInc = inc;
+            // ramp is set now.
+            // Note: if newVolume is 0, then near the end of the ramp,
+            // it may be possible that the ramped volume may be subnormal or
+            // temporarily negative by a small amount or subnormal due to floating
+            // point inaccuracies.
+        } else {
+            ramp = 0; // ramp not allowed
+        }
+    }
+
+    // compute and check integer volume, no need to check negative values
+    // The integer volume is limited to "unity_gain" to avoid wrapping and other
+    // audio artifacts, so it never reaches the range limit of U4.28.
+    // We safely use signed 16 and 32 bit integers here.
+    const float scaledVolume = newVolume * AudioMixer::UNITY_GAIN_INT; // not neg, subnormal, nan
+    const int32_t intVolume = (scaledVolume >= (float)AudioMixer::UNITY_GAIN_INT) ?
+            AudioMixer::UNITY_GAIN_INT : (int32_t)scaledVolume;
+
+    // set integer volume ramp
+    if (ramp != 0) {
+        // integer volume is U4.12 (to use 16 bit multiplies), but ramping uses U4.28.
+        // when the ramp completes, *pIntPrevVolume is set to *pIntSetVolume << 16, so there
+        // is no computational mismatch; hence equality is checked here.
+        ALOGD_IF(*pIntPrevVolume != *pIntSetVolume << 16, "previous int ramp hasn't finished,"
+                " prev:%d  set_to:%d", *pIntPrevVolume, *pIntSetVolume << 16);
+        const int32_t inc = ((intVolume << 16) - *pIntPrevVolume) / ramp;
+
+        if (inc != 0) { // inc must make forward progress
+            *pIntVolumeInc = inc;
+        } else {
+            ramp = 0; // ramp not allowed
+        }
+    }
+
+    // if no ramp, or ramp not allowed, then clear float and integer increments
+    if (ramp == 0) {
+        *pVolumeInc = 0;
+        *pPrevVolume = newVolume;
+        *pIntVolumeInc = 0;
+        *pIntPrevVolume = intVolume << 16;
+    }
+    *pSetVolume = newVolume;
+    *pIntSetVolume = intVolume;
+    return true;
+}
+
+void AudioMixer::setParameter(int name, int target, int param, void *value)
+{
+    name -= TRACK0;
+    ALOG_ASSERT(uint32_t(name) < MAX_NUM_TRACKS, "bad track name %d", name);
+    track_t& track = mState.tracks[name];
+
+    int valueInt = static_cast<int>(reinterpret_cast<uintptr_t>(value));
+    int32_t *valueBuf = reinterpret_cast<int32_t*>(value);
+
+    switch (target) {
+
+    case TRACK:
+        switch (param) {
+        case CHANNEL_MASK: {
+            const audio_channel_mask_t trackChannelMask =
+                static_cast<audio_channel_mask_t>(valueInt);
+            if (setChannelMasks(name, trackChannelMask, track.mMixerChannelMask)) {
+                ALOGV("setParameter(TRACK, CHANNEL_MASK, %x)", trackChannelMask);
+                invalidateState(1 << name);
+            }
+            } break;
+        case MAIN_BUFFER:
+            if (track.mainBuffer != valueBuf) {
+                track.mainBuffer = valueBuf;
+                ALOGV("setParameter(TRACK, MAIN_BUFFER, %p)", valueBuf);
+                invalidateState(1 << name);
+            }
+            break;
+        case AUX_BUFFER:
+            if (track.auxBuffer != valueBuf) {
+                track.auxBuffer = valueBuf;
+                ALOGV("setParameter(TRACK, AUX_BUFFER, %p)", valueBuf);
+                invalidateState(1 << name);
+            }
+            break;
+        case FORMAT: {
+            audio_format_t format = static_cast<audio_format_t>(valueInt);
+            if (track.mFormat != format) {
+                ALOG_ASSERT(audio_is_linear_pcm(format), "Invalid format %#x", format);
+                track.mFormat = format;
+                ALOGV("setParameter(TRACK, FORMAT, %#x)", format);
+                track.prepareForReformat();
+                invalidateState(1 << name);
+            }
+            } break;
+        // FIXME do we want to support setting the downmix type from AudioFlinger?
+        //         for a specific track? or per mixer?
+        /* case DOWNMIX_TYPE:
+            break          */
+        case MIXER_FORMAT: {
+            audio_format_t format = static_cast<audio_format_t>(valueInt);
+            if (track.mMixerFormat != format) {
+                track.mMixerFormat = format;
+                ALOGV("setParameter(TRACK, MIXER_FORMAT, %#x)", format);
+            }
+            } break;
+        case MIXER_CHANNEL_MASK: {
+            const audio_channel_mask_t mixerChannelMask =
+                    static_cast<audio_channel_mask_t>(valueInt);
+            if (setChannelMasks(name, track.channelMask, mixerChannelMask)) {
+                ALOGV("setParameter(TRACK, MIXER_CHANNEL_MASK, %#x)", mixerChannelMask);
+                invalidateState(1 << name);
+            }
+            } break;
+        default:
+            LOG_ALWAYS_FATAL("setParameter track: bad param %d", param);
+        }
+        break;
+
+    case RESAMPLE:
+        switch (param) {
+        case SAMPLE_RATE:
+            ALOG_ASSERT(valueInt > 0, "bad sample rate %d", valueInt);
+            if (track.setResampler(uint32_t(valueInt), mSampleRate)) {
+                ALOGV("setParameter(RESAMPLE, SAMPLE_RATE, %u)",
+                        uint32_t(valueInt));
+                invalidateState(1 << name);
+            }
+            break;
+        case RESET:
+            track.resetResampler();
+            invalidateState(1 << name);
+            break;
+        case REMOVE:
+            delete track.resampler;
+            track.resampler = NULL;
+            track.sampleRate = mSampleRate;
+            invalidateState(1 << name);
+            break;
+        default:
+            LOG_ALWAYS_FATAL("setParameter resample: bad param %d", param);
+        }
+        break;
+
+    case RAMP_VOLUME:
+    case VOLUME:
+        switch (param) {
+        case AUXLEVEL:
+            if (setVolumeRampVariables(*reinterpret_cast<float*>(value),
+                    target == RAMP_VOLUME ? mState.frameCount : 0,
+                    &track.auxLevel, &track.prevAuxLevel, &track.auxInc,
+                    &track.mAuxLevel, &track.mPrevAuxLevel, &track.mAuxInc)) {
+                ALOGV("setParameter(%s, AUXLEVEL: %04x)",
+                        target == VOLUME ? "VOLUME" : "RAMP_VOLUME", track.auxLevel);
+                invalidateState(1 << name);
+            }
+            break;
+        default:
+            if ((unsigned)param >= VOLUME0 && (unsigned)param < VOLUME0 + MAX_NUM_VOLUMES) {
+                if (setVolumeRampVariables(*reinterpret_cast<float*>(value),
+                        target == RAMP_VOLUME ? mState.frameCount : 0,
+                        &track.volume[param - VOLUME0], &track.prevVolume[param - VOLUME0],
+                        &track.volumeInc[param - VOLUME0],
+                        &track.mVolume[param - VOLUME0], &track.mPrevVolume[param - VOLUME0],
+                        &track.mVolumeInc[param - VOLUME0])) {
+                    ALOGV("setParameter(%s, VOLUME%d: %04x)",
+                            target == VOLUME ? "VOLUME" : "RAMP_VOLUME", param - VOLUME0,
+                                    track.volume[param - VOLUME0]);
+                    invalidateState(1 << name);
+                }
+            } else {
+                LOG_ALWAYS_FATAL("setParameter volume: bad param %d", param);
+            }
+        }
+        break;
+        case TIMESTRETCH:
+            switch (param) {
+            case PLAYBACK_RATE: {
+                const AudioPlaybackRate *playbackRate =
+                        reinterpret_cast<AudioPlaybackRate*>(value);
+                ALOGW_IF(!isAudioPlaybackRateValid(*playbackRate),
+                        "bad parameters speed %f, pitch %f",playbackRate->mSpeed,
+                        playbackRate->mPitch);
+                if (track.setPlaybackRate(*playbackRate)) {
+                    ALOGV("setParameter(TIMESTRETCH, PLAYBACK_RATE, STRETCH_MODE, FALLBACK_MODE "
+                            "%f %f %d %d",
+                            playbackRate->mSpeed,
+                            playbackRate->mPitch,
+                            playbackRate->mStretchMode,
+                            playbackRate->mFallbackMode);
+                    // invalidateState(1 << name);
+                }
+            } break;
+            default:
+                LOG_ALWAYS_FATAL("setParameter timestretch: bad param %d", param);
+            }
+            break;
+
+    default:
+        LOG_ALWAYS_FATAL("setParameter: bad target %d", target);
+    }
+}
+
+bool AudioMixer::track_t::setResampler(uint32_t trackSampleRate, uint32_t devSampleRate)
+{
+    if (trackSampleRate != devSampleRate || resampler != NULL) {
+        if (sampleRate != trackSampleRate) {
+            sampleRate = trackSampleRate;
+            if (resampler == NULL) {
+                ALOGV("Creating resampler from track %d Hz to device %d Hz",
+                        trackSampleRate, devSampleRate);
+                AudioResampler::src_quality quality;
+                // force lowest quality level resampler if use case isn't music or video
+                // FIXME this is flawed for dynamic sample rates, as we choose the resampler
+                // quality level based on the initial ratio, but that could change later.
+                // Should have a way to distinguish tracks with static ratios vs. dynamic ratios.
+                if (isMusicRate(trackSampleRate)) {
+                    quality = AudioResampler::DEFAULT_QUALITY;
+                } else {
+                    quality = AudioResampler::DYN_LOW_QUALITY;
+                }
+
+                // TODO: Remove MONO_HACK. Resampler sees #channels after the downmixer
+                // but if none exists, it is the channel count (1 for mono).
+                const int resamplerChannelCount = downmixerBufferProvider != NULL
+                        ? mMixerChannelCount : channelCount;
+                ALOGVV("Creating resampler:"
+                        " format(%#x) channels(%d) devSampleRate(%u) quality(%d)\n",
+                        mMixerInFormat, resamplerChannelCount, devSampleRate, quality);
+                resampler = AudioResampler::create(
+                        mMixerInFormat,
+                        resamplerChannelCount,
+                        devSampleRate, quality);
+            }
+            return true;
+        }
+    }
+    return false;
+}
+
+bool AudioMixer::track_t::setPlaybackRate(const AudioPlaybackRate &playbackRate)
+{
+    if ((mTimestretchBufferProvider == NULL &&
+            fabs(playbackRate.mSpeed - mPlaybackRate.mSpeed) < AUDIO_TIMESTRETCH_SPEED_MIN_DELTA &&
+            fabs(playbackRate.mPitch - mPlaybackRate.mPitch) < AUDIO_TIMESTRETCH_PITCH_MIN_DELTA) ||
+            isAudioPlaybackRateEqual(playbackRate, mPlaybackRate)) {
+        return false;
+    }
+    mPlaybackRate = playbackRate;
+    if (mTimestretchBufferProvider == NULL) {
+        // TODO: Remove MONO_HACK. Resampler sees #channels after the downmixer
+        // but if none exists, it is the channel count (1 for mono).
+        const int timestretchChannelCount = downmixerBufferProvider != NULL
+                ? mMixerChannelCount : channelCount;
+        mTimestretchBufferProvider = new TimestretchBufferProvider(timestretchChannelCount,
+                mMixerInFormat, sampleRate, playbackRate);
+        reconfigureBufferProviders();
+    } else {
+        reinterpret_cast<TimestretchBufferProvider*>(mTimestretchBufferProvider)
+                ->setPlaybackRate(playbackRate);
+    }
+    return true;
+}
+
+/* Checks to see if the volume ramp has completed and clears the increment
+ * variables appropriately.
+ *
+ * FIXME: There is code to handle int/float ramp variable switchover should it not
+ * complete within a mixer buffer processing call, but it is preferred to avoid switchover
+ * due to precision issues.  The switchover code is included for legacy code purposes
+ * and can be removed once the integer volume is removed.
+ *
+ * It is not sufficient to clear only the volumeInc integer variable because
+ * if one channel requires ramping, all channels are ramped.
+ *
+ * There is a bit of duplicated code here, but it keeps backward compatibility.
+ */
+inline void AudioMixer::track_t::adjustVolumeRamp(bool aux, bool useFloat)
+{
+    if (useFloat) {
+        for (uint32_t i = 0; i < MAX_NUM_VOLUMES; i++) {
+            if ((mVolumeInc[i] > 0 && mPrevVolume[i] + mVolumeInc[i] >= mVolume[i]) ||
+                     (mVolumeInc[i] < 0 && mPrevVolume[i] + mVolumeInc[i] <= mVolume[i])) {
+                volumeInc[i] = 0;
+                prevVolume[i] = volume[i] << 16;
+                mVolumeInc[i] = 0.;
+                mPrevVolume[i] = mVolume[i];
+            } else {
+                //ALOGV("ramp: %f %f %f", mVolume[i], mPrevVolume[i], mVolumeInc[i]);
+                prevVolume[i] = u4_28_from_float(mPrevVolume[i]);
+            }
+        }
+    } else {
+        for (uint32_t i = 0; i < MAX_NUM_VOLUMES; i++) {
+            if (((volumeInc[i]>0) && (((prevVolume[i]+volumeInc[i])>>16) >= volume[i])) ||
+                    ((volumeInc[i]<0) && (((prevVolume[i]+volumeInc[i])>>16) <= volume[i]))) {
+                volumeInc[i] = 0;
+                prevVolume[i] = volume[i] << 16;
+                mVolumeInc[i] = 0.;
+                mPrevVolume[i] = mVolume[i];
+            } else {
+                //ALOGV("ramp: %d %d %d", volume[i] << 16, prevVolume[i], volumeInc[i]);
+                mPrevVolume[i]  = float_from_u4_28(prevVolume[i]);
+            }
+        }
+    }
+    /* TODO: aux is always integer regardless of output buffer type */
+    if (aux) {
+        if (((auxInc>0) && (((prevAuxLevel+auxInc)>>16) >= auxLevel)) ||
+                ((auxInc<0) && (((prevAuxLevel+auxInc)>>16) <= auxLevel))) {
+            auxInc = 0;
+            prevAuxLevel = auxLevel << 16;
+            mAuxInc = 0.;
+            mPrevAuxLevel = mAuxLevel;
+        } else {
+            //ALOGV("aux ramp: %d %d %d", auxLevel << 16, prevAuxLevel, auxInc);
+        }
+    }
+}
+
+size_t AudioMixer::getUnreleasedFrames(int name) const
+{
+    name -= TRACK0;
+    if (uint32_t(name) < MAX_NUM_TRACKS) {
+        return mState.tracks[name].getUnreleasedFrames();
+    }
+    return 0;
+}
+
+void AudioMixer::setBufferProvider(int name, AudioBufferProvider* bufferProvider)
+{
+    name -= TRACK0;
+    ALOG_ASSERT(uint32_t(name) < MAX_NUM_TRACKS, "bad track name %d", name);
+
+    if (mState.tracks[name].mInputBufferProvider == bufferProvider) {
+        return; // don't reset any buffer providers if identical.
+    }
+    if (mState.tracks[name].mReformatBufferProvider != NULL) {
+        mState.tracks[name].mReformatBufferProvider->reset();
+    } else if (mState.tracks[name].downmixerBufferProvider != NULL) {
+        mState.tracks[name].downmixerBufferProvider->reset();
+    } else if (mState.tracks[name].mPostDownmixReformatBufferProvider != NULL) {
+        mState.tracks[name].mPostDownmixReformatBufferProvider->reset();
+    } else if (mState.tracks[name].mTimestretchBufferProvider != NULL) {
+        mState.tracks[name].mTimestretchBufferProvider->reset();
+    }
+
+    mState.tracks[name].mInputBufferProvider = bufferProvider;
+    mState.tracks[name].reconfigureBufferProviders();
+}
+
+
+void AudioMixer::process()
+{
+    mState.hook(&mState);
+}
+
+
+void AudioMixer::process__validate(state_t* state)
+{
+    ALOGW_IF(!state->needsChanged,
+        "in process__validate() but nothing's invalid");
+
+    uint32_t changed = state->needsChanged;
+    state->needsChanged = 0; // clear the validation flag
+
+    // recompute which tracks are enabled / disabled
+    uint32_t enabled = 0;
+    uint32_t disabled = 0;
+    while (changed) {
+        const int i = 31 - __builtin_clz(changed);
+        const uint32_t mask = 1<<i;
+        changed &= ~mask;
+        track_t& t = state->tracks[i];
+        (t.enabled ? enabled : disabled) |= mask;
+    }
+    state->enabledTracks &= ~disabled;
+    state->enabledTracks |=  enabled;
+
+    // compute everything we need...
+    int countActiveTracks = 0;
+    // TODO: fix all16BitsStereNoResample logic to
+    // either properly handle muted tracks (it should ignore them)
+    // or remove altogether as an obsolete optimization.
+    bool all16BitsStereoNoResample = true;
+    bool resampling = false;
+    bool volumeRamp = false;
+    uint32_t en = state->enabledTracks;
+    while (en) {
+        const int i = 31 - __builtin_clz(en);
+        en &= ~(1<<i);
+
+        countActiveTracks++;
+        track_t& t = state->tracks[i];
+        uint32_t n = 0;
+        // FIXME can overflow (mask is only 3 bits)
+        n |= NEEDS_CHANNEL_1 + t.channelCount - 1;
+        if (t.doesResample()) {
+            n |= NEEDS_RESAMPLE;
+        }
+        if (t.auxLevel != 0 && t.auxBuffer != NULL) {
+            n |= NEEDS_AUX;
+        }
+
+        if (t.volumeInc[0]|t.volumeInc[1]) {
+            volumeRamp = true;
+        } else if (!t.doesResample() && t.volumeRL == 0) {
+            n |= NEEDS_MUTE;
+        }
+        t.needs = n;
+
+        if (n & NEEDS_MUTE) {
+            t.hook = track__nop;
+        } else {
+            if (n & NEEDS_AUX) {
+                all16BitsStereoNoResample = false;
+            }
+            if (n & NEEDS_RESAMPLE) {
+                all16BitsStereoNoResample = false;
+                resampling = true;
+                t.hook = getTrackHook(TRACKTYPE_RESAMPLE, t.mMixerChannelCount,
+                        t.mMixerInFormat, t.mMixerFormat);
+                ALOGV_IF((n & NEEDS_CHANNEL_COUNT__MASK) > NEEDS_CHANNEL_2,
+                        "Track %d needs downmix + resample", i);
+            } else {
+                if ((n & NEEDS_CHANNEL_COUNT__MASK) == NEEDS_CHANNEL_1){
+                    t.hook = getTrackHook(
+                            (t.mMixerChannelMask == AUDIO_CHANNEL_OUT_STEREO  // TODO: MONO_HACK
+                                    && t.channelMask == AUDIO_CHANNEL_OUT_MONO)
+                                ? TRACKTYPE_NORESAMPLEMONO : TRACKTYPE_NORESAMPLE,
+                            t.mMixerChannelCount,
+                            t.mMixerInFormat, t.mMixerFormat);
+                    all16BitsStereoNoResample = false;
+                }
+                if ((n & NEEDS_CHANNEL_COUNT__MASK) >= NEEDS_CHANNEL_2){
+                    t.hook = getTrackHook(TRACKTYPE_NORESAMPLE, t.mMixerChannelCount,
+                            t.mMixerInFormat, t.mMixerFormat);
+                    ALOGV_IF((n & NEEDS_CHANNEL_COUNT__MASK) > NEEDS_CHANNEL_2,
+                            "Track %d needs downmix", i);
+                }
+            }
+        }
+    }
+
+    // select the processing hooks
+    state->hook = process__nop;
+    if (countActiveTracks > 0) {
+        if (resampling) {
+            if (!state->outputTemp) {
+                state->outputTemp = new int32_t[MAX_NUM_CHANNELS * state->frameCount];
+            }
+            if (!state->resampleTemp) {
+                state->resampleTemp = new int32_t[MAX_NUM_CHANNELS * state->frameCount];
+            }
+            state->hook = process__genericResampling;
+        } else {
+            if (state->outputTemp) {
+                delete [] state->outputTemp;
+                state->outputTemp = NULL;
+            }
+            if (state->resampleTemp) {
+                delete [] state->resampleTemp;
+                state->resampleTemp = NULL;
+            }
+            state->hook = process__genericNoResampling;
+            if (all16BitsStereoNoResample && !volumeRamp) {
+                if (countActiveTracks == 1) {
+                    const int i = 31 - __builtin_clz(state->enabledTracks);
+                    track_t& t = state->tracks[i];
+                    if ((t.needs & NEEDS_MUTE) == 0) {
+                        // The check prevents a muted track from acquiring a process hook.
+                        //
+                        // This is dangerous if the track is MONO as that requires
+                        // special case handling due to implicit channel duplication.
+                        // Stereo or Multichannel should actually be fine here.
+                        state->hook = getProcessHook(PROCESSTYPE_NORESAMPLEONETRACK,
+                                t.mMixerChannelCount, t.mMixerInFormat, t.mMixerFormat);
+                    }
+                }
+            }
+        }
+    }
+
+    ALOGV("mixer configuration change: %d activeTracks (%08x) "
+        "all16BitsStereoNoResample=%d, resampling=%d, volumeRamp=%d",
+        countActiveTracks, state->enabledTracks,
+        all16BitsStereoNoResample, resampling, volumeRamp);
+
+   state->hook(state);
+
+    // Now that the volume ramp has been done, set optimal state and
+    // track hooks for subsequent mixer process
+    if (countActiveTracks > 0) {
+        bool allMuted = true;
+        uint32_t en = state->enabledTracks;
+        while (en) {
+            const int i = 31 - __builtin_clz(en);
+            en &= ~(1<<i);
+            track_t& t = state->tracks[i];
+            if (!t.doesResample() && t.volumeRL == 0) {
+                t.needs |= NEEDS_MUTE;
+                t.hook = track__nop;
+            } else {
+                allMuted = false;
+            }
+        }
+        if (allMuted) {
+            state->hook = process__nop;
+        } else if (all16BitsStereoNoResample) {
+            if (countActiveTracks == 1) {
+                const int i = 31 - __builtin_clz(state->enabledTracks);
+                track_t& t = state->tracks[i];
+                // Muted single tracks handled by allMuted above.
+                state->hook = getProcessHook(PROCESSTYPE_NORESAMPLEONETRACK,
+                        t.mMixerChannelCount, t.mMixerInFormat, t.mMixerFormat);
+            }
+        }
+    }
+}
+
+
+void AudioMixer::track__genericResample(track_t* t, int32_t* out, size_t outFrameCount,
+        int32_t* temp, int32_t* aux)
+{
+    ALOGVV("track__genericResample\n");
+    t->resampler->setSampleRate(t->sampleRate);
+
+    // ramp gain - resample to temp buffer and scale/mix in 2nd step
+    if (aux != NULL) {
+        // always resample with unity gain when sending to auxiliary buffer to be able
+        // to apply send level after resampling
+        t->resampler->setVolume(UNITY_GAIN_FLOAT, UNITY_GAIN_FLOAT);
+        memset(temp, 0, outFrameCount * t->mMixerChannelCount * sizeof(int32_t));
+        t->resampler->resample(temp, outFrameCount, t->bufferProvider);
+        if (CC_UNLIKELY(t->volumeInc[0]|t->volumeInc[1]|t->auxInc)) {
+            volumeRampStereo(t, out, outFrameCount, temp, aux);
+        } else {
+            volumeStereo(t, out, outFrameCount, temp, aux);
+        }
+    } else {
+        if (CC_UNLIKELY(t->volumeInc[0]|t->volumeInc[1])) {
+            t->resampler->setVolume(UNITY_GAIN_FLOAT, UNITY_GAIN_FLOAT);
+            memset(temp, 0, outFrameCount * MAX_NUM_CHANNELS * sizeof(int32_t));
+            t->resampler->resample(temp, outFrameCount, t->bufferProvider);
+            volumeRampStereo(t, out, outFrameCount, temp, aux);
+        }
+
+        // constant gain
+        else {
+            t->resampler->setVolume(t->mVolume[0], t->mVolume[1]);
+            t->resampler->resample(out, outFrameCount, t->bufferProvider);
+        }
+    }
+}
+
+void AudioMixer::track__nop(track_t* t __unused, int32_t* out __unused,
+        size_t outFrameCount __unused, int32_t* temp __unused, int32_t* aux __unused)
+{
+}
+
+void AudioMixer::volumeRampStereo(track_t* t, int32_t* out, size_t frameCount, int32_t* temp,
+        int32_t* aux)
+{
+    int32_t vl = t->prevVolume[0];
+    int32_t vr = t->prevVolume[1];
+    const int32_t vlInc = t->volumeInc[0];
+    const int32_t vrInc = t->volumeInc[1];
+
+    //ALOGD("[0] %p: inc=%f, v0=%f, v1=%d, final=%f, count=%d",
+    //        t, vlInc/65536.0f, vl/65536.0f, t->volume[0],
+    //       (vl + vlInc*frameCount)/65536.0f, frameCount);
+
+    // ramp volume
+    if (CC_UNLIKELY(aux != NULL)) {
+        int32_t va = t->prevAuxLevel;
+        const int32_t vaInc = t->auxInc;
+        int32_t l;
+        int32_t r;
+
+        do {
+            l = (*temp++ >> 12);
+            r = (*temp++ >> 12);
+            *out++ += (vl >> 16) * l;
+            *out++ += (vr >> 16) * r;
+            *aux++ += (va >> 17) * (l + r);
+            vl += vlInc;
+            vr += vrInc;
+            va += vaInc;
+        } while (--frameCount);
+        t->prevAuxLevel = va;
+    } else {
+        do {
+            *out++ += (vl >> 16) * (*temp++ >> 12);
+            *out++ += (vr >> 16) * (*temp++ >> 12);
+            vl += vlInc;
+            vr += vrInc;
+        } while (--frameCount);
+    }
+    t->prevVolume[0] = vl;
+    t->prevVolume[1] = vr;
+    t->adjustVolumeRamp(aux != NULL);
+}
+
+void AudioMixer::volumeStereo(track_t* t, int32_t* out, size_t frameCount, int32_t* temp,
+        int32_t* aux)
+{
+    const int16_t vl = t->volume[0];
+    const int16_t vr = t->volume[1];
+
+    if (CC_UNLIKELY(aux != NULL)) {
+        const int16_t va = t->auxLevel;
+        do {
+            int16_t l = (int16_t)(*temp++ >> 12);
+            int16_t r = (int16_t)(*temp++ >> 12);
+            out[0] = mulAdd(l, vl, out[0]);
+            int16_t a = (int16_t)(((int32_t)l + r) >> 1);
+            out[1] = mulAdd(r, vr, out[1]);
+            out += 2;
+            aux[0] = mulAdd(a, va, aux[0]);
+            aux++;
+        } while (--frameCount);
+    } else {
+        do {
+            int16_t l = (int16_t)(*temp++ >> 12);
+            int16_t r = (int16_t)(*temp++ >> 12);
+            out[0] = mulAdd(l, vl, out[0]);
+            out[1] = mulAdd(r, vr, out[1]);
+            out += 2;
+        } while (--frameCount);
+    }
+}
+
+void AudioMixer::track__16BitsStereo(track_t* t, int32_t* out, size_t frameCount,
+        int32_t* temp __unused, int32_t* aux)
+{
+    ALOGVV("track__16BitsStereo\n");
+    const int16_t *in = static_cast<const int16_t *>(t->in);
+
+    if (CC_UNLIKELY(aux != NULL)) {
+        int32_t l;
+        int32_t r;
+        // ramp gain
+        if (CC_UNLIKELY(t->volumeInc[0]|t->volumeInc[1]|t->auxInc)) {
+            int32_t vl = t->prevVolume[0];
+            int32_t vr = t->prevVolume[1];
+            int32_t va = t->prevAuxLevel;
+            const int32_t vlInc = t->volumeInc[0];
+            const int32_t vrInc = t->volumeInc[1];
+            const int32_t vaInc = t->auxInc;
+            // ALOGD("[1] %p: inc=%f, v0=%f, v1=%d, final=%f, count=%d",
+            //        t, vlInc/65536.0f, vl/65536.0f, t->volume[0],
+            //        (vl + vlInc*frameCount)/65536.0f, frameCount);
+
+            do {
+                l = (int32_t)*in++;
+                r = (int32_t)*in++;
+                *out++ += (vl >> 16) * l;
+                *out++ += (vr >> 16) * r;
+                *aux++ += (va >> 17) * (l + r);
+                vl += vlInc;
+                vr += vrInc;
+                va += vaInc;
+            } while (--frameCount);
+
+            t->prevVolume[0] = vl;
+            t->prevVolume[1] = vr;
+            t->prevAuxLevel = va;
+            t->adjustVolumeRamp(true);
+        }
+
+        // constant gain
+        else {
+            const uint32_t vrl = t->volumeRL;
+            const int16_t va = (int16_t)t->auxLevel;
+            do {
+                uint32_t rl = *reinterpret_cast<const uint32_t *>(in);
+                int16_t a = (int16_t)(((int32_t)in[0] + in[1]) >> 1);
+                in += 2;
+                out[0] = mulAddRL(1, rl, vrl, out[0]);
+                out[1] = mulAddRL(0, rl, vrl, out[1]);
+                out += 2;
+                aux[0] = mulAdd(a, va, aux[0]);
+                aux++;
+            } while (--frameCount);
+        }
+    } else {
+        // ramp gain
+        if (CC_UNLIKELY(t->volumeInc[0]|t->volumeInc[1])) {
+            int32_t vl = t->prevVolume[0];
+            int32_t vr = t->prevVolume[1];
+            const int32_t vlInc = t->volumeInc[0];
+            const int32_t vrInc = t->volumeInc[1];
+
+            // ALOGD("[1] %p: inc=%f, v0=%f, v1=%d, final=%f, count=%d",
+            //        t, vlInc/65536.0f, vl/65536.0f, t->volume[0],
+            //        (vl + vlInc*frameCount)/65536.0f, frameCount);
+
+            do {
+                *out++ += (vl >> 16) * (int32_t) *in++;
+                *out++ += (vr >> 16) * (int32_t) *in++;
+                vl += vlInc;
+                vr += vrInc;
+            } while (--frameCount);
+
+            t->prevVolume[0] = vl;
+            t->prevVolume[1] = vr;
+            t->adjustVolumeRamp(false);
+        }
+
+        // constant gain
+        else {
+            const uint32_t vrl = t->volumeRL;
+            do {
+                uint32_t rl = *reinterpret_cast<const uint32_t *>(in);
+                in += 2;
+                out[0] = mulAddRL(1, rl, vrl, out[0]);
+                out[1] = mulAddRL(0, rl, vrl, out[1]);
+                out += 2;
+            } while (--frameCount);
+        }
+    }
+    t->in = in;
+}
+
+void AudioMixer::track__16BitsMono(track_t* t, int32_t* out, size_t frameCount,
+        int32_t* temp __unused, int32_t* aux)
+{
+    ALOGVV("track__16BitsMono\n");
+    const int16_t *in = static_cast<int16_t const *>(t->in);
+
+    if (CC_UNLIKELY(aux != NULL)) {
+        // ramp gain
+        if (CC_UNLIKELY(t->volumeInc[0]|t->volumeInc[1]|t->auxInc)) {
+            int32_t vl = t->prevVolume[0];
+            int32_t vr = t->prevVolume[1];
+            int32_t va = t->prevAuxLevel;
+            const int32_t vlInc = t->volumeInc[0];
+            const int32_t vrInc = t->volumeInc[1];
+            const int32_t vaInc = t->auxInc;
+
+            // ALOGD("[2] %p: inc=%f, v0=%f, v1=%d, final=%f, count=%d",
+            //         t, vlInc/65536.0f, vl/65536.0f, t->volume[0],
+            //         (vl + vlInc*frameCount)/65536.0f, frameCount);
+
+            do {
+                int32_t l = *in++;
+                *out++ += (vl >> 16) * l;
+                *out++ += (vr >> 16) * l;
+                *aux++ += (va >> 16) * l;
+                vl += vlInc;
+                vr += vrInc;
+                va += vaInc;
+            } while (--frameCount);
+
+            t->prevVolume[0] = vl;
+            t->prevVolume[1] = vr;
+            t->prevAuxLevel = va;
+            t->adjustVolumeRamp(true);
+        }
+        // constant gain
+        else {
+            const int16_t vl = t->volume[0];
+            const int16_t vr = t->volume[1];
+            const int16_t va = (int16_t)t->auxLevel;
+            do {
+                int16_t l = *in++;
+                out[0] = mulAdd(l, vl, out[0]);
+                out[1] = mulAdd(l, vr, out[1]);
+                out += 2;
+                aux[0] = mulAdd(l, va, aux[0]);
+                aux++;
+            } while (--frameCount);
+        }
+    } else {
+        // ramp gain
+        if (CC_UNLIKELY(t->volumeInc[0]|t->volumeInc[1])) {
+            int32_t vl = t->prevVolume[0];
+            int32_t vr = t->prevVolume[1];
+            const int32_t vlInc = t->volumeInc[0];
+            const int32_t vrInc = t->volumeInc[1];
+
+            // ALOGD("[2] %p: inc=%f, v0=%f, v1=%d, final=%f, count=%d",
+            //         t, vlInc/65536.0f, vl/65536.0f, t->volume[0],
+            //         (vl + vlInc*frameCount)/65536.0f, frameCount);
+
+            do {
+                int32_t l = *in++;
+                *out++ += (vl >> 16) * l;
+                *out++ += (vr >> 16) * l;
+                vl += vlInc;
+                vr += vrInc;
+            } while (--frameCount);
+
+            t->prevVolume[0] = vl;
+            t->prevVolume[1] = vr;
+            t->adjustVolumeRamp(false);
+        }
+        // constant gain
+        else {
+            const int16_t vl = t->volume[0];
+            const int16_t vr = t->volume[1];
+            do {
+                int16_t l = *in++;
+                out[0] = mulAdd(l, vl, out[0]);
+                out[1] = mulAdd(l, vr, out[1]);
+                out += 2;
+            } while (--frameCount);
+        }
+    }
+    t->in = in;
+}
+
+// no-op case
+void AudioMixer::process__nop(state_t* state)
+{
+    ALOGVV("process__nop\n");
+    uint32_t e0 = state->enabledTracks;
+    while (e0) {
+        // process by group of tracks with same output buffer to
+        // avoid multiple memset() on same buffer
+        uint32_t e1 = e0, e2 = e0;
+        int i = 31 - __builtin_clz(e1);
+        {
+            track_t& t1 = state->tracks[i];
+            e2 &= ~(1<<i);
+            while (e2) {
+                i = 31 - __builtin_clz(e2);
+                e2 &= ~(1<<i);
+                track_t& t2 = state->tracks[i];
+                if (CC_UNLIKELY(t2.mainBuffer != t1.mainBuffer)) {
+                    e1 &= ~(1<<i);
+                }
+            }
+            e0 &= ~(e1);
+
+            memset(t1.mainBuffer, 0, state->frameCount * t1.mMixerChannelCount
+                    * audio_bytes_per_sample(t1.mMixerFormat));
+        }
+
+        while (e1) {
+            i = 31 - __builtin_clz(e1);
+            e1 &= ~(1<<i);
+            {
+                track_t& t3 = state->tracks[i];
+                size_t outFrames = state->frameCount;
+                while (outFrames) {
+                    t3.buffer.frameCount = outFrames;
+                    t3.bufferProvider->getNextBuffer(&t3.buffer);
+                    if (t3.buffer.raw == NULL) break;
+                    outFrames -= t3.buffer.frameCount;
+                    t3.bufferProvider->releaseBuffer(&t3.buffer);
+                }
+            }
+        }
+    }
+}
+
+// generic code without resampling
+void AudioMixer::process__genericNoResampling(state_t* state)
+{
+    ALOGVV("process__genericNoResampling\n");
+    int32_t outTemp[BLOCKSIZE * MAX_NUM_CHANNELS] __attribute__((aligned(32)));
+
+    // acquire each track's buffer
+    uint32_t enabledTracks = state->enabledTracks;
+    uint32_t e0 = enabledTracks;
+    while (e0) {
+        const int i = 31 - __builtin_clz(e0);
+        e0 &= ~(1<<i);
+        track_t& t = state->tracks[i];
+        t.buffer.frameCount = state->frameCount;
+        t.bufferProvider->getNextBuffer(&t.buffer);
+        t.frameCount = t.buffer.frameCount;
+        t.in = t.buffer.raw;
+    }
+
+    e0 = enabledTracks;
+    while (e0) {
+        // process by group of tracks with same output buffer to
+        // optimize cache use
+        uint32_t e1 = e0, e2 = e0;
+        int j = 31 - __builtin_clz(e1);
+        track_t& t1 = state->tracks[j];
+        e2 &= ~(1<<j);
+        while (e2) {
+            j = 31 - __builtin_clz(e2);
+            e2 &= ~(1<<j);
+            track_t& t2 = state->tracks[j];
+            if (CC_UNLIKELY(t2.mainBuffer != t1.mainBuffer)) {
+                e1 &= ~(1<<j);
+            }
+        }
+        e0 &= ~(e1);
+        // this assumes output 16 bits stereo, no resampling
+        int32_t *out = t1.mainBuffer;
+        size_t numFrames = 0;
+        do {
+            memset(outTemp, 0, sizeof(outTemp));
+            e2 = e1;
+            while (e2) {
+                const int i = 31 - __builtin_clz(e2);
+                e2 &= ~(1<<i);
+                track_t& t = state->tracks[i];
+                size_t outFrames = BLOCKSIZE;
+                int32_t *aux = NULL;
+                if (CC_UNLIKELY(t.needs & NEEDS_AUX)) {
+                    aux = t.auxBuffer + numFrames;
+                }
+                while (outFrames) {
+                    // t.in == NULL can happen if the track was flushed just after having
+                    // been enabled for mixing.
+                   if (t.in == NULL) {
+                        enabledTracks &= ~(1<<i);
+                        e1 &= ~(1<<i);
+                        break;
+                    }
+                    size_t inFrames = (t.frameCount > outFrames)?outFrames:t.frameCount;
+                    if (inFrames > 0) {
+                        t.hook(&t, outTemp + (BLOCKSIZE - outFrames) * t.mMixerChannelCount,
+                                inFrames, state->resampleTemp, aux);
+                        t.frameCount -= inFrames;
+                        outFrames -= inFrames;
+                        if (CC_UNLIKELY(aux != NULL)) {
+                            aux += inFrames;
+                        }
+                    }
+                    if (t.frameCount == 0 && outFrames) {
+                        t.bufferProvider->releaseBuffer(&t.buffer);
+                        t.buffer.frameCount = (state->frameCount - numFrames) -
+                                (BLOCKSIZE - outFrames);
+                        t.bufferProvider->getNextBuffer(&t.buffer);
+                        t.in = t.buffer.raw;
+                        if (t.in == NULL) {
+                            enabledTracks &= ~(1<<i);
+                            e1 &= ~(1<<i);
+                            break;
+                        }
+                        t.frameCount = t.buffer.frameCount;
+                    }
+                }
+            }
+
+            convertMixerFormat(out, t1.mMixerFormat, outTemp, t1.mMixerInFormat,
+                    BLOCKSIZE * t1.mMixerChannelCount);
+            // TODO: fix ugly casting due to choice of out pointer type
+            out = reinterpret_cast<int32_t*>((uint8_t*)out
+                    + BLOCKSIZE * t1.mMixerChannelCount
+                        * audio_bytes_per_sample(t1.mMixerFormat));
+            numFrames += BLOCKSIZE;
+        } while (numFrames < state->frameCount);
+    }
+
+    // release each track's buffer
+    e0 = enabledTracks;
+    while (e0) {
+        const int i = 31 - __builtin_clz(e0);
+        e0 &= ~(1<<i);
+        track_t& t = state->tracks[i];
+        t.bufferProvider->releaseBuffer(&t.buffer);
+    }
+}
+
+
+// generic code with resampling
+void AudioMixer::process__genericResampling(state_t* state)
+{
+    ALOGVV("process__genericResampling\n");
+    // this const just means that local variable outTemp doesn't change
+    int32_t* const outTemp = state->outputTemp;
+    size_t numFrames = state->frameCount;
+
+    uint32_t e0 = state->enabledTracks;
+    while (e0) {
+        // process by group of tracks with same output buffer
+        // to optimize cache use
+        uint32_t e1 = e0, e2 = e0;
+        int j = 31 - __builtin_clz(e1);
+        track_t& t1 = state->tracks[j];
+        e2 &= ~(1<<j);
+        while (e2) {
+            j = 31 - __builtin_clz(e2);
+            e2 &= ~(1<<j);
+            track_t& t2 = state->tracks[j];
+            if (CC_UNLIKELY(t2.mainBuffer != t1.mainBuffer)) {
+                e1 &= ~(1<<j);
+            }
+        }
+        e0 &= ~(e1);
+        int32_t *out = t1.mainBuffer;
+        memset(outTemp, 0, sizeof(*outTemp) * t1.mMixerChannelCount * state->frameCount);
+        while (e1) {
+            const int i = 31 - __builtin_clz(e1);
+            e1 &= ~(1<<i);
+            track_t& t = state->tracks[i];
+            int32_t *aux = NULL;
+            if (CC_UNLIKELY(t.needs & NEEDS_AUX)) {
+                aux = t.auxBuffer;
+            }
+
+            // this is a little goofy, on the resampling case we don't
+            // acquire/release the buffers because it's done by
+            // the resampler.
+            if (t.needs & NEEDS_RESAMPLE) {
+                t.hook(&t, outTemp, numFrames, state->resampleTemp, aux);
+            } else {
+
+                size_t outFrames = 0;
+
+                while (outFrames < numFrames) {
+                    t.buffer.frameCount = numFrames - outFrames;
+                    t.bufferProvider->getNextBuffer(&t.buffer);
+                    t.in = t.buffer.raw;
+                    // t.in == NULL can happen if the track was flushed just after having
+                    // been enabled for mixing.
+                    if (t.in == NULL) break;
+
+                    if (CC_UNLIKELY(aux != NULL)) {
+                        aux += outFrames;
+                    }
+                    t.hook(&t, outTemp + outFrames * t.mMixerChannelCount, t.buffer.frameCount,
+                            state->resampleTemp, aux);
+                    outFrames += t.buffer.frameCount;
+                    t.bufferProvider->releaseBuffer(&t.buffer);
+                }
+            }
+        }
+        convertMixerFormat(out, t1.mMixerFormat,
+                outTemp, t1.mMixerInFormat, numFrames * t1.mMixerChannelCount);
+    }
+}
+
+// one track, 16 bits stereo without resampling is the most common case
+void AudioMixer::process__OneTrack16BitsStereoNoResampling(state_t* state)
+{
+    ALOGVV("process__OneTrack16BitsStereoNoResampling\n");
+    // This method is only called when state->enabledTracks has exactly
+    // one bit set.  The asserts below would verify this, but are commented out
+    // since the whole point of this method is to optimize performance.
+    //ALOG_ASSERT(0 != state->enabledTracks, "no tracks enabled");
+    const int i = 31 - __builtin_clz(state->enabledTracks);
+    //ALOG_ASSERT((1 << i) == state->enabledTracks, "more than 1 track enabled");
+    const track_t& t = state->tracks[i];
+
+    AudioBufferProvider::Buffer& b(t.buffer);
+
+    int32_t* out = t.mainBuffer;
+    float *fout = reinterpret_cast<float*>(out);
+    size_t numFrames = state->frameCount;
+
+    const int16_t vl = t.volume[0];
+    const int16_t vr = t.volume[1];
+    const uint32_t vrl = t.volumeRL;
+    while (numFrames) {
+        b.frameCount = numFrames;
+        t.bufferProvider->getNextBuffer(&b);
+        const int16_t *in = b.i16;
+
+        // in == NULL can happen if the track was flushed just after having
+        // been enabled for mixing.
+        if (in == NULL || (((uintptr_t)in) & 3)) {
+            if ( AUDIO_FORMAT_PCM_FLOAT == t.mMixerFormat ) {
+                 memset((char*)fout, 0, numFrames
+                         * t.mMixerChannelCount * audio_bytes_per_sample(t.mMixerFormat));
+            } else {
+                 memset((char*)out, 0, numFrames
+                         * t.mMixerChannelCount * audio_bytes_per_sample(t.mMixerFormat));
+            }
+            ALOGE_IF((((uintptr_t)in) & 3),
+                    "process__OneTrack16BitsStereoNoResampling: misaligned buffer"
+                    " %p track %d, channels %d, needs %08x, volume %08x vfl %f vfr %f",
+                    in, i, t.channelCount, t.needs, vrl, t.mVolume[0], t.mVolume[1]);
+            return;
+        }
+        size_t outFrames = b.frameCount;
+
+        switch (t.mMixerFormat) {
+        case AUDIO_FORMAT_PCM_FLOAT:
+            do {
+                uint32_t rl = *reinterpret_cast<const uint32_t *>(in);
+                in += 2;
+                int32_t l = mulRL(1, rl, vrl);
+                int32_t r = mulRL(0, rl, vrl);
+                *fout++ = float_from_q4_27(l);
+                *fout++ = float_from_q4_27(r);
+                // Note: In case of later int16_t sink output,
+                // conversion and clamping is done by memcpy_to_i16_from_float().
+            } while (--outFrames);
+            break;
+        case AUDIO_FORMAT_PCM_16_BIT:
+            if (CC_UNLIKELY(uint32_t(vl) > UNITY_GAIN_INT || uint32_t(vr) > UNITY_GAIN_INT)) {
+                // volume is boosted, so we might need to clamp even though
+                // we process only one track.
+                do {
+                    uint32_t rl = *reinterpret_cast<const uint32_t *>(in);
+                    in += 2;
+                    int32_t l = mulRL(1, rl, vrl) >> 12;
+                    int32_t r = mulRL(0, rl, vrl) >> 12;
+                    // clamping...
+                    l = clamp16(l);
+                    r = clamp16(r);
+                    *out++ = (r<<16) | (l & 0xFFFF);
+                } while (--outFrames);
+            } else {
+                do {
+                    uint32_t rl = *reinterpret_cast<const uint32_t *>(in);
+                    in += 2;
+                    int32_t l = mulRL(1, rl, vrl) >> 12;
+                    int32_t r = mulRL(0, rl, vrl) >> 12;
+                    *out++ = (r<<16) | (l & 0xFFFF);
+                } while (--outFrames);
+            }
+            break;
+        default:
+            LOG_ALWAYS_FATAL("bad mixer format: %d", t.mMixerFormat);
+        }
+        numFrames -= b.frameCount;
+        t.bufferProvider->releaseBuffer(&b);
+    }
+}
+
+/*static*/ pthread_once_t AudioMixer::sOnceControl = PTHREAD_ONCE_INIT;
+
+/*static*/ void AudioMixer::sInitRoutine()
+{
+    DownmixerBufferProvider::init(); // for the downmixer
+}
+
+/* TODO: consider whether this level of optimization is necessary.
+ * Perhaps just stick with a single for loop.
+ */
+
+// Needs to derive a compile time constant (constexpr).  Could be targeted to go
+// to a MONOVOL mixtype based on MAX_NUM_VOLUMES, but that's an unnecessary complication.
+#define MIXTYPE_MONOVOL(mixtype) ((mixtype) == MIXTYPE_MULTI ? MIXTYPE_MULTI_MONOVOL : \
+        (mixtype) == MIXTYPE_MULTI_SAVEONLY ? MIXTYPE_MULTI_SAVEONLY_MONOVOL : (mixtype))
+
+/* MIXTYPE     (see AudioMixerOps.h MIXTYPE_* enumeration)
+ * TO: int32_t (Q4.27) or float
+ * TI: int32_t (Q4.27) or int16_t (Q0.15) or float
+ * TA: int32_t (Q4.27)
+ */
+template <int MIXTYPE,
+        typename TO, typename TI, typename TV, typename TA, typename TAV>
+static void volumeRampMulti(uint32_t channels, TO* out, size_t frameCount,
+        const TI* in, TA* aux, TV *vol, const TV *volinc, TAV *vola, TAV volainc)
+{
+    switch (channels) {
+    case 1:
+        volumeRampMulti<MIXTYPE, 1>(out, frameCount, in, aux, vol, volinc, vola, volainc);
+        break;
+    case 2:
+        volumeRampMulti<MIXTYPE, 2>(out, frameCount, in, aux, vol, volinc, vola, volainc);
+        break;
+    case 3:
+        volumeRampMulti<MIXTYPE_MONOVOL(MIXTYPE), 3>(out,
+                frameCount, in, aux, vol, volinc, vola, volainc);
+        break;
+    case 4:
+        volumeRampMulti<MIXTYPE_MONOVOL(MIXTYPE), 4>(out,
+                frameCount, in, aux, vol, volinc, vola, volainc);
+        break;
+    case 5:
+        volumeRampMulti<MIXTYPE_MONOVOL(MIXTYPE), 5>(out,
+                frameCount, in, aux, vol, volinc, vola, volainc);
+        break;
+    case 6:
+        volumeRampMulti<MIXTYPE_MONOVOL(MIXTYPE), 6>(out,
+                frameCount, in, aux, vol, volinc, vola, volainc);
+        break;
+    case 7:
+        volumeRampMulti<MIXTYPE_MONOVOL(MIXTYPE), 7>(out,
+                frameCount, in, aux, vol, volinc, vola, volainc);
+        break;
+    case 8:
+        volumeRampMulti<MIXTYPE_MONOVOL(MIXTYPE), 8>(out,
+                frameCount, in, aux, vol, volinc, vola, volainc);
+        break;
+    }
+}
+
+/* MIXTYPE     (see AudioMixerOps.h MIXTYPE_* enumeration)
+ * TO: int32_t (Q4.27) or float
+ * TI: int32_t (Q4.27) or int16_t (Q0.15) or float
+ * TA: int32_t (Q4.27)
+ */
+template <int MIXTYPE,
+        typename TO, typename TI, typename TV, typename TA, typename TAV>
+static void volumeMulti(uint32_t channels, TO* out, size_t frameCount,
+        const TI* in, TA* aux, const TV *vol, TAV vola)
+{
+    switch (channels) {
+    case 1:
+        volumeMulti<MIXTYPE, 1>(out, frameCount, in, aux, vol, vola);
+        break;
+    case 2:
+        volumeMulti<MIXTYPE, 2>(out, frameCount, in, aux, vol, vola);
+        break;
+    case 3:
+        volumeMulti<MIXTYPE_MONOVOL(MIXTYPE), 3>(out, frameCount, in, aux, vol, vola);
+        break;
+    case 4:
+        volumeMulti<MIXTYPE_MONOVOL(MIXTYPE), 4>(out, frameCount, in, aux, vol, vola);
+        break;
+    case 5:
+        volumeMulti<MIXTYPE_MONOVOL(MIXTYPE), 5>(out, frameCount, in, aux, vol, vola);
+        break;
+    case 6:
+        volumeMulti<MIXTYPE_MONOVOL(MIXTYPE), 6>(out, frameCount, in, aux, vol, vola);
+        break;
+    case 7:
+        volumeMulti<MIXTYPE_MONOVOL(MIXTYPE), 7>(out, frameCount, in, aux, vol, vola);
+        break;
+    case 8:
+        volumeMulti<MIXTYPE_MONOVOL(MIXTYPE), 8>(out, frameCount, in, aux, vol, vola);
+        break;
+    }
+}
+
+/* MIXTYPE     (see AudioMixerOps.h MIXTYPE_* enumeration)
+ * USEFLOATVOL (set to true if float volume is used)
+ * ADJUSTVOL   (set to true if volume ramp parameters needs adjustment afterwards)
+ * TO: int32_t (Q4.27) or float
+ * TI: int32_t (Q4.27) or int16_t (Q0.15) or float
+ * TA: int32_t (Q4.27)
+ */
+template <int MIXTYPE, bool USEFLOATVOL, bool ADJUSTVOL,
+    typename TO, typename TI, typename TA>
+void AudioMixer::volumeMix(TO *out, size_t outFrames,
+        const TI *in, TA *aux, bool ramp, AudioMixer::track_t *t)
+{
+    if (USEFLOATVOL) {
+        if (ramp) {
+            volumeRampMulti<MIXTYPE>(t->mMixerChannelCount, out, outFrames, in, aux,
+                    t->mPrevVolume, t->mVolumeInc, &t->prevAuxLevel, t->auxInc);
+            if (ADJUSTVOL) {
+                t->adjustVolumeRamp(aux != NULL, true);
+            }
+        } else {
+            volumeMulti<MIXTYPE>(t->mMixerChannelCount, out, outFrames, in, aux,
+                    t->mVolume, t->auxLevel);
+        }
+    } else {
+        if (ramp) {
+            volumeRampMulti<MIXTYPE>(t->mMixerChannelCount, out, outFrames, in, aux,
+                    t->prevVolume, t->volumeInc, &t->prevAuxLevel, t->auxInc);
+            if (ADJUSTVOL) {
+                t->adjustVolumeRamp(aux != NULL);
+            }
+        } else {
+            volumeMulti<MIXTYPE>(t->mMixerChannelCount, out, outFrames, in, aux,
+                    t->volume, t->auxLevel);
+        }
+    }
+}
+
+/* This process hook is called when there is a single track without
+ * aux buffer, volume ramp, or resampling.
+ * TODO: Update the hook selection: this can properly handle aux and ramp.
+ *
+ * MIXTYPE     (see AudioMixerOps.h MIXTYPE_* enumeration)
+ * TO: int32_t (Q4.27) or float
+ * TI: int32_t (Q4.27) or int16_t (Q0.15) or float
+ * TA: int32_t (Q4.27)
+ */
+template <int MIXTYPE, typename TO, typename TI, typename TA>
+void AudioMixer::process_NoResampleOneTrack(state_t* state)
+{
+    ALOGVV("process_NoResampleOneTrack\n");
+    // CLZ is faster than CTZ on ARM, though really not sure if true after 31 - clz.
+    const int i = 31 - __builtin_clz(state->enabledTracks);
+    ALOG_ASSERT((1 << i) == state->enabledTracks, "more than 1 track enabled");
+    track_t *t = &state->tracks[i];
+    const uint32_t channels = t->mMixerChannelCount;
+    TO* out = reinterpret_cast<TO*>(t->mainBuffer);
+    TA* aux = reinterpret_cast<TA*>(t->auxBuffer);
+    const bool ramp = t->needsRamp();
+
+    for (size_t numFrames = state->frameCount; numFrames; ) {
+        AudioBufferProvider::Buffer& b(t->buffer);
+        // get input buffer
+        b.frameCount = numFrames;
+        t->bufferProvider->getNextBuffer(&b);
+        const TI *in = reinterpret_cast<TI*>(b.raw);
+
+        // in == NULL can happen if the track was flushed just after having
+        // been enabled for mixing.
+        if (in == NULL || (((uintptr_t)in) & 3)) {
+            memset(out, 0, numFrames
+                    * channels * audio_bytes_per_sample(t->mMixerFormat));
+            ALOGE_IF((((uintptr_t)in) & 3), "process_NoResampleOneTrack: bus error: "
+                    "buffer %p track %p, channels %d, needs %#x",
+                    in, t, t->channelCount, t->needs);
+            return;
+        }
+
+        const size_t outFrames = b.frameCount;
+        volumeMix<MIXTYPE, is_same<TI, float>::value, false> (
+                out, outFrames, in, aux, ramp, t);
+
+        out += outFrames * channels;
+        if (aux != NULL) {
+            aux += channels;
+        }
+        numFrames -= b.frameCount;
+
+        // release buffer
+        t->bufferProvider->releaseBuffer(&b);
+    }
+    if (ramp) {
+        t->adjustVolumeRamp(aux != NULL, is_same<TI, float>::value);
+    }
+}
+
+/* This track hook is called to do resampling then mixing,
+ * pulling from the track's upstream AudioBufferProvider.
+ *
+ * MIXTYPE     (see AudioMixerOps.h MIXTYPE_* enumeration)
+ * TO: int32_t (Q4.27) or float
+ * TI: int32_t (Q4.27) or int16_t (Q0.15) or float
+ * TA: int32_t (Q4.27)
+ */
+template <int MIXTYPE, typename TO, typename TI, typename TA>
+void AudioMixer::track__Resample(track_t* t, TO* out, size_t outFrameCount, TO* temp, TA* aux)
+{
+    ALOGVV("track__Resample\n");
+    t->resampler->setSampleRate(t->sampleRate);
+    const bool ramp = t->needsRamp();
+    if (ramp || aux != NULL) {
+        // if ramp:        resample with unity gain to temp buffer and scale/mix in 2nd step.
+        // if aux != NULL: resample with unity gain to temp buffer then apply send level.
+
+        t->resampler->setVolume(UNITY_GAIN_FLOAT, UNITY_GAIN_FLOAT);
+        memset(temp, 0, outFrameCount * t->mMixerChannelCount * sizeof(TO));
+        t->resampler->resample((int32_t*)temp, outFrameCount, t->bufferProvider);
+
+        volumeMix<MIXTYPE, is_same<TI, float>::value, true>(
+                out, outFrameCount, temp, aux, ramp, t);
+
+    } else { // constant volume gain
+        t->resampler->setVolume(t->mVolume[0], t->mVolume[1]);
+        t->resampler->resample((int32_t*)out, outFrameCount, t->bufferProvider);
+    }
+}
+
+/* This track hook is called to mix a track, when no resampling is required.
+ * The input buffer should be present in t->in.
+ *
+ * MIXTYPE     (see AudioMixerOps.h MIXTYPE_* enumeration)
+ * TO: int32_t (Q4.27) or float
+ * TI: int32_t (Q4.27) or int16_t (Q0.15) or float
+ * TA: int32_t (Q4.27)
+ */
+template <int MIXTYPE, typename TO, typename TI, typename TA>
+void AudioMixer::track__NoResample(track_t* t, TO* out, size_t frameCount,
+        TO* temp __unused, TA* aux)
+{
+    ALOGVV("track__NoResample\n");
+    const TI *in = static_cast<const TI *>(t->in);
+
+    volumeMix<MIXTYPE, is_same<TI, float>::value, true>(
+            out, frameCount, in, aux, t->needsRamp(), t);
+
+    // MIXTYPE_MONOEXPAND reads a single input channel and expands to NCHAN output channels.
+    // MIXTYPE_MULTI reads NCHAN input channels and places to NCHAN output channels.
+    in += (MIXTYPE == MIXTYPE_MONOEXPAND) ? frameCount : frameCount * t->mMixerChannelCount;
+    t->in = in;
+}
+
+/* The Mixer engine generates either int32_t (Q4_27) or float data.
+ * We use this function to convert the engine buffers
+ * to the desired mixer output format, either int16_t (Q.15) or float.
+ */
+void AudioMixer::convertMixerFormat(void *out, audio_format_t mixerOutFormat,
+        void *in, audio_format_t mixerInFormat, size_t sampleCount)
+{
+    switch (mixerInFormat) {
+    case AUDIO_FORMAT_PCM_FLOAT:
+        switch (mixerOutFormat) {
+        case AUDIO_FORMAT_PCM_FLOAT:
+            memcpy(out, in, sampleCount * sizeof(float)); // MEMCPY. TODO optimize out
+            break;
+        case AUDIO_FORMAT_PCM_16_BIT:
+            memcpy_to_i16_from_float((int16_t*)out, (float*)in, sampleCount);
+            break;
+        default:
+            LOG_ALWAYS_FATAL("bad mixerOutFormat: %#x", mixerOutFormat);
+            break;
+        }
+        break;
+    case AUDIO_FORMAT_PCM_16_BIT:
+        switch (mixerOutFormat) {
+        case AUDIO_FORMAT_PCM_FLOAT:
+            memcpy_to_float_from_q4_27((float*)out, (int32_t*)in, sampleCount);
+            break;
+        case AUDIO_FORMAT_PCM_16_BIT:
+            // two int16_t are produced per iteration
+            ditherAndClamp((int32_t*)out, (int32_t*)in, sampleCount >> 1);
+            break;
+        default:
+            LOG_ALWAYS_FATAL("bad mixerOutFormat: %#x", mixerOutFormat);
+            break;
+        }
+        break;
+    default:
+        LOG_ALWAYS_FATAL("bad mixerInFormat: %#x", mixerInFormat);
+        break;
+    }
+}
+
+/* Returns the proper track hook to use for mixing the track into the output buffer.
+ */
+AudioMixer::hook_t AudioMixer::getTrackHook(int trackType, uint32_t channelCount,
+        audio_format_t mixerInFormat, audio_format_t mixerOutFormat __unused)
+{
+    if (!kUseNewMixer && channelCount == FCC_2 && mixerInFormat == AUDIO_FORMAT_PCM_16_BIT) {
+        switch (trackType) {
+        case TRACKTYPE_NOP:
+            return track__nop;
+        case TRACKTYPE_RESAMPLE:
+            return track__genericResample;
+        case TRACKTYPE_NORESAMPLEMONO:
+            return track__16BitsMono;
+        case TRACKTYPE_NORESAMPLE:
+            return track__16BitsStereo;
+        default:
+            LOG_ALWAYS_FATAL("bad trackType: %d", trackType);
+            break;
+        }
+    }
+    LOG_ALWAYS_FATAL_IF(channelCount > MAX_NUM_CHANNELS);
+    switch (trackType) {
+    case TRACKTYPE_NOP:
+        return track__nop;
+    case TRACKTYPE_RESAMPLE:
+        switch (mixerInFormat) {
+        case AUDIO_FORMAT_PCM_FLOAT:
+            return (AudioMixer::hook_t)
+                    track__Resample<MIXTYPE_MULTI, float /*TO*/, float /*TI*/, int32_t /*TA*/>;
+        case AUDIO_FORMAT_PCM_16_BIT:
+            return (AudioMixer::hook_t)\
+                    track__Resample<MIXTYPE_MULTI, int32_t, int16_t, int32_t>;
+        default:
+            LOG_ALWAYS_FATAL("bad mixerInFormat: %#x", mixerInFormat);
+            break;
+        }
+        break;
+    case TRACKTYPE_NORESAMPLEMONO:
+        switch (mixerInFormat) {
+        case AUDIO_FORMAT_PCM_FLOAT:
+            return (AudioMixer::hook_t)
+                    track__NoResample<MIXTYPE_MONOEXPAND, float, float, int32_t>;
+        case AUDIO_FORMAT_PCM_16_BIT:
+            return (AudioMixer::hook_t)
+                    track__NoResample<MIXTYPE_MONOEXPAND, int32_t, int16_t, int32_t>;
+        default:
+            LOG_ALWAYS_FATAL("bad mixerInFormat: %#x", mixerInFormat);
+            break;
+        }
+        break;
+    case TRACKTYPE_NORESAMPLE:
+        switch (mixerInFormat) {
+        case AUDIO_FORMAT_PCM_FLOAT:
+            return (AudioMixer::hook_t)
+                    track__NoResample<MIXTYPE_MULTI, float, float, int32_t>;
+        case AUDIO_FORMAT_PCM_16_BIT:
+            return (AudioMixer::hook_t)
+                    track__NoResample<MIXTYPE_MULTI, int32_t, int16_t, int32_t>;
+        default:
+            LOG_ALWAYS_FATAL("bad mixerInFormat: %#x", mixerInFormat);
+            break;
+        }
+        break;
+    default:
+        LOG_ALWAYS_FATAL("bad trackType: %d", trackType);
+        break;
+    }
+    return NULL;
+}
+
+/* Returns the proper process hook for mixing tracks. Currently works only for
+ * PROCESSTYPE_NORESAMPLEONETRACK, a mix involving one track, no resampling.
+ *
+ * TODO: Due to the special mixing considerations of duplicating to
+ * a stereo output track, the input track cannot be MONO.  This should be
+ * prevented by the caller.
+ */
+AudioMixer::process_hook_t AudioMixer::getProcessHook(int processType, uint32_t channelCount,
+        audio_format_t mixerInFormat, audio_format_t mixerOutFormat)
+{
+    if (processType != PROCESSTYPE_NORESAMPLEONETRACK) { // Only NORESAMPLEONETRACK
+        LOG_ALWAYS_FATAL("bad processType: %d", processType);
+        return NULL;
+    }
+    if (!kUseNewMixer && channelCount == FCC_2 && mixerInFormat == AUDIO_FORMAT_PCM_16_BIT) {
+        return process__OneTrack16BitsStereoNoResampling;
+    }
+    LOG_ALWAYS_FATAL_IF(channelCount > MAX_NUM_CHANNELS);
+    switch (mixerInFormat) {
+    case AUDIO_FORMAT_PCM_FLOAT:
+        switch (mixerOutFormat) {
+        case AUDIO_FORMAT_PCM_FLOAT:
+            return process_NoResampleOneTrack<MIXTYPE_MULTI_SAVEONLY,
+                    float /*TO*/, float /*TI*/, int32_t /*TA*/>;
+        case AUDIO_FORMAT_PCM_16_BIT:
+            return process_NoResampleOneTrack<MIXTYPE_MULTI_SAVEONLY,
+                    int16_t, float, int32_t>;
+        default:
+            LOG_ALWAYS_FATAL("bad mixerOutFormat: %#x", mixerOutFormat);
+            break;
+        }
+        break;
+    case AUDIO_FORMAT_PCM_16_BIT:
+        switch (mixerOutFormat) {
+        case AUDIO_FORMAT_PCM_FLOAT:
+            return process_NoResampleOneTrack<MIXTYPE_MULTI_SAVEONLY,
+                    float, int16_t, int32_t>;
+        case AUDIO_FORMAT_PCM_16_BIT:
+            return process_NoResampleOneTrack<MIXTYPE_MULTI_SAVEONLY,
+                    int16_t, int16_t, int32_t>;
+        default:
+            LOG_ALWAYS_FATAL("bad mixerOutFormat: %#x", mixerOutFormat);
+            break;
+        }
+        break;
+    default:
+        LOG_ALWAYS_FATAL("bad mixerInFormat: %#x", mixerInFormat);
+        break;
+    }
+    return NULL;
+}
+
+// ----------------------------------------------------------------------------
+} // namespace android
diff --git a/services/audioflinger/AudioMixerOps.h b/media/libaudioprocessing/AudioMixerOps.h
similarity index 100%
rename from services/audioflinger/AudioMixerOps.h
rename to media/libaudioprocessing/AudioMixerOps.h
diff --git a/media/libaudioprocessing/AudioResampler.cpp b/media/libaudioprocessing/AudioResampler.cpp
new file mode 100644
index 0000000..c761b38
--- /dev/null
+++ b/media/libaudioprocessing/AudioResampler.cpp
@@ -0,0 +1,787 @@
+/*
+ * Copyright (C) 2007 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "AudioResampler"
+//#define LOG_NDEBUG 0
+
+#include <pthread.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <sys/types.h>
+
+#include <cutils/properties.h>
+#include <log/log.h>
+
+#include <audio_utils/primitives.h>
+#include <media/AudioResampler.h>
+#include "AudioResamplerSinc.h"
+#include "AudioResamplerCubic.h"
+#include "AudioResamplerDyn.h"
+
+#ifdef __arm__
+    // bug 13102576
+    //#define ASM_ARM_RESAMP1 // enable asm optimisation for ResamplerOrder1
+#endif
+
+namespace android {
+
+// ----------------------------------------------------------------------------
+
+class AudioResamplerOrder1 : public AudioResampler {
+public:
+    AudioResamplerOrder1(int inChannelCount, int32_t sampleRate) :
+        AudioResampler(inChannelCount, sampleRate, LOW_QUALITY), mX0L(0), mX0R(0) {
+    }
+    virtual size_t resample(int32_t* out, size_t outFrameCount,
+            AudioBufferProvider* provider);
+private:
+    // number of bits used in interpolation multiply - 15 bits avoids overflow
+    static const int kNumInterpBits = 15;
+
+    // bits to shift the phase fraction down to avoid overflow
+    static const int kPreInterpShift = kNumPhaseBits - kNumInterpBits;
+
+    void init() {}
+    size_t resampleMono16(int32_t* out, size_t outFrameCount,
+            AudioBufferProvider* provider);
+    size_t resampleStereo16(int32_t* out, size_t outFrameCount,
+            AudioBufferProvider* provider);
+#ifdef ASM_ARM_RESAMP1  // asm optimisation for ResamplerOrder1
+    void AsmMono16Loop(int16_t *in, int32_t* maxOutPt, int32_t maxInIdx,
+            size_t &outputIndex, int32_t* out, size_t &inputIndex, int32_t vl, int32_t vr,
+            uint32_t &phaseFraction, uint32_t phaseIncrement);
+    void AsmStereo16Loop(int16_t *in, int32_t* maxOutPt, int32_t maxInIdx,
+            size_t &outputIndex, int32_t* out, size_t &inputIndex, int32_t vl, int32_t vr,
+            uint32_t &phaseFraction, uint32_t phaseIncrement);
+#endif  // ASM_ARM_RESAMP1
+
+    static inline int32_t Interp(int32_t x0, int32_t x1, uint32_t f) {
+        return x0 + (((x1 - x0) * (int32_t)(f >> kPreInterpShift)) >> kNumInterpBits);
+    }
+    static inline void Advance(size_t* index, uint32_t* frac, uint32_t inc) {
+        *frac += inc;
+        *index += (size_t)(*frac >> kNumPhaseBits);
+        *frac &= kPhaseMask;
+    }
+    int mX0L;
+    int mX0R;
+};
+
+/*static*/
+const double AudioResampler::kPhaseMultiplier = 1L << AudioResampler::kNumPhaseBits;
+
+bool AudioResampler::qualityIsSupported(src_quality quality)
+{
+    switch (quality) {
+    case DEFAULT_QUALITY:
+    case LOW_QUALITY:
+    case MED_QUALITY:
+    case HIGH_QUALITY:
+    case VERY_HIGH_QUALITY:
+    case DYN_LOW_QUALITY:
+    case DYN_MED_QUALITY:
+    case DYN_HIGH_QUALITY:
+        return true;
+    default:
+        return false;
+    }
+}
+
+// ----------------------------------------------------------------------------
+
+static pthread_once_t once_control = PTHREAD_ONCE_INIT;
+static AudioResampler::src_quality defaultQuality = AudioResampler::DEFAULT_QUALITY;
+
+void AudioResampler::init_routine()
+{
+    char value[PROPERTY_VALUE_MAX];
+    if (property_get("af.resampler.quality", value, NULL) > 0) {
+        char *endptr;
+        unsigned long l = strtoul(value, &endptr, 0);
+        if (*endptr == '\0') {
+            defaultQuality = (src_quality) l;
+            ALOGD("forcing AudioResampler quality to %d", defaultQuality);
+            if (defaultQuality < DEFAULT_QUALITY || defaultQuality > DYN_HIGH_QUALITY) {
+                defaultQuality = DEFAULT_QUALITY;
+            }
+        }
+    }
+}
+
+uint32_t AudioResampler::qualityMHz(src_quality quality)
+{
+    switch (quality) {
+    default:
+    case DEFAULT_QUALITY:
+    case LOW_QUALITY:
+        return 3;
+    case MED_QUALITY:
+        return 6;
+    case HIGH_QUALITY:
+        return 20;
+    case VERY_HIGH_QUALITY:
+        return 34;
+    case DYN_LOW_QUALITY:
+        return 4;
+    case DYN_MED_QUALITY:
+        return 6;
+    case DYN_HIGH_QUALITY:
+        return 12;
+    }
+}
+
+static const uint32_t maxMHz = 130; // an arbitrary number that permits 3 VHQ, should be tunable
+static pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
+static uint32_t currentMHz = 0;
+
+AudioResampler* AudioResampler::create(audio_format_t format, int inChannelCount,
+        int32_t sampleRate, src_quality quality) {
+
+    bool atFinalQuality;
+    if (quality == DEFAULT_QUALITY) {
+        // read the resampler default quality property the first time it is needed
+        int ok = pthread_once(&once_control, init_routine);
+        if (ok != 0) {
+            ALOGE("%s pthread_once failed: %d", __func__, ok);
+        }
+        quality = defaultQuality;
+        atFinalQuality = false;
+    } else {
+        atFinalQuality = true;
+    }
+
+    /* if the caller requests DEFAULT_QUALITY and af.resampler.property
+     * has not been set, the target resampler quality is set to DYN_MED_QUALITY,
+     * and allowed to "throttle" down to DYN_LOW_QUALITY if necessary
+     * due to estimated CPU load of having too many active resamplers
+     * (the code below the if).
+     */
+    if (quality == DEFAULT_QUALITY) {
+        quality = DYN_MED_QUALITY;
+    }
+
+    // naive implementation of CPU load throttling doesn't account for whether resampler is active
+    pthread_mutex_lock(&mutex);
+    for (;;) {
+        uint32_t deltaMHz = qualityMHz(quality);
+        uint32_t newMHz = currentMHz + deltaMHz;
+        if ((qualityIsSupported(quality) && newMHz <= maxMHz) || atFinalQuality) {
+            ALOGV("resampler load %u -> %u MHz due to delta +%u MHz from quality %d",
+                    currentMHz, newMHz, deltaMHz, quality);
+            currentMHz = newMHz;
+            break;
+        }
+        // not enough CPU available for proposed quality level, so try next lowest level
+        switch (quality) {
+        default:
+        case LOW_QUALITY:
+            atFinalQuality = true;
+            break;
+        case MED_QUALITY:
+            quality = LOW_QUALITY;
+            break;
+        case HIGH_QUALITY:
+            quality = MED_QUALITY;
+            break;
+        case VERY_HIGH_QUALITY:
+            quality = HIGH_QUALITY;
+            break;
+        case DYN_LOW_QUALITY:
+            atFinalQuality = true;
+            break;
+        case DYN_MED_QUALITY:
+            quality = DYN_LOW_QUALITY;
+            break;
+        case DYN_HIGH_QUALITY:
+            quality = DYN_MED_QUALITY;
+            break;
+        }
+    }
+    pthread_mutex_unlock(&mutex);
+
+    AudioResampler* resampler;
+
+    switch (quality) {
+    default:
+    case LOW_QUALITY:
+        ALOGV("Create linear Resampler");
+        LOG_ALWAYS_FATAL_IF(format != AUDIO_FORMAT_PCM_16_BIT);
+        resampler = new AudioResamplerOrder1(inChannelCount, sampleRate);
+        break;
+    case MED_QUALITY:
+        ALOGV("Create cubic Resampler");
+        LOG_ALWAYS_FATAL_IF(format != AUDIO_FORMAT_PCM_16_BIT);
+        resampler = new AudioResamplerCubic(inChannelCount, sampleRate);
+        break;
+    case HIGH_QUALITY:
+        ALOGV("Create HIGH_QUALITY sinc Resampler");
+        LOG_ALWAYS_FATAL_IF(format != AUDIO_FORMAT_PCM_16_BIT);
+        resampler = new AudioResamplerSinc(inChannelCount, sampleRate);
+        break;
+    case VERY_HIGH_QUALITY:
+        ALOGV("Create VERY_HIGH_QUALITY sinc Resampler = %d", quality);
+        LOG_ALWAYS_FATAL_IF(format != AUDIO_FORMAT_PCM_16_BIT);
+        resampler = new AudioResamplerSinc(inChannelCount, sampleRate, quality);
+        break;
+    case DYN_LOW_QUALITY:
+    case DYN_MED_QUALITY:
+    case DYN_HIGH_QUALITY:
+        ALOGV("Create dynamic Resampler = %d", quality);
+        if (format == AUDIO_FORMAT_PCM_FLOAT) {
+            resampler = new AudioResamplerDyn<float, float, float>(inChannelCount,
+                    sampleRate, quality);
+        } else {
+            LOG_ALWAYS_FATAL_IF(format != AUDIO_FORMAT_PCM_16_BIT);
+            if (quality == DYN_HIGH_QUALITY) {
+                resampler = new AudioResamplerDyn<int32_t, int16_t, int32_t>(inChannelCount,
+                        sampleRate, quality);
+            } else {
+                resampler = new AudioResamplerDyn<int16_t, int16_t, int32_t>(inChannelCount,
+                        sampleRate, quality);
+            }
+        }
+        break;
+    }
+
+    // initialize resampler
+    resampler->init();
+    return resampler;
+}
+
+AudioResampler::AudioResampler(int inChannelCount,
+        int32_t sampleRate, src_quality quality) :
+        mChannelCount(inChannelCount),
+        mSampleRate(sampleRate), mInSampleRate(sampleRate), mInputIndex(0),
+        mPhaseFraction(0),
+        mQuality(quality) {
+
+    const int maxChannels = quality < DYN_LOW_QUALITY ? 2 : 8;
+    if (inChannelCount < 1
+            || inChannelCount > maxChannels) {
+        LOG_ALWAYS_FATAL("Unsupported sample format %d quality %d channels",
+                quality, inChannelCount);
+    }
+    if (sampleRate <= 0) {
+        LOG_ALWAYS_FATAL("Unsupported sample rate %d Hz", sampleRate);
+    }
+
+    // initialize common members
+    mVolume[0] = mVolume[1] = 0;
+    mBuffer.frameCount = 0;
+}
+
+AudioResampler::~AudioResampler() {
+    pthread_mutex_lock(&mutex);
+    src_quality quality = getQuality();
+    uint32_t deltaMHz = qualityMHz(quality);
+    int32_t newMHz = currentMHz - deltaMHz;
+    ALOGV("resampler load %u -> %d MHz due to delta -%u MHz from quality %d",
+            currentMHz, newMHz, deltaMHz, quality);
+    LOG_ALWAYS_FATAL_IF(newMHz < 0, "negative resampler load %d MHz", newMHz);
+    currentMHz = newMHz;
+    pthread_mutex_unlock(&mutex);
+}
+
+void AudioResampler::setSampleRate(int32_t inSampleRate) {
+    mInSampleRate = inSampleRate;
+    mPhaseIncrement = (uint32_t)((kPhaseMultiplier * inSampleRate) / mSampleRate);
+}
+
+void AudioResampler::setVolume(float left, float right) {
+    // TODO: Implement anti-zipper filter
+    // convert to U4.12 for internal integer use (round down)
+    // integer volume values are clamped to 0 to UNITY_GAIN.
+    mVolume[0] = u4_12_from_float(clampFloatVol(left));
+    mVolume[1] = u4_12_from_float(clampFloatVol(right));
+}
+
+void AudioResampler::reset() {
+    mInputIndex = 0;
+    mPhaseFraction = 0;
+    mBuffer.frameCount = 0;
+}
+
+// ----------------------------------------------------------------------------
+
+size_t AudioResamplerOrder1::resample(int32_t* out, size_t outFrameCount,
+        AudioBufferProvider* provider) {
+
+    // should never happen, but we overflow if it does
+    // ALOG_ASSERT(outFrameCount < 32767);
+
+    // select the appropriate resampler
+    switch (mChannelCount) {
+    case 1:
+        return resampleMono16(out, outFrameCount, provider);
+    case 2:
+        return resampleStereo16(out, outFrameCount, provider);
+    default:
+        LOG_ALWAYS_FATAL("invalid channel count: %d", mChannelCount);
+        return 0;
+    }
+}
+
+size_t AudioResamplerOrder1::resampleStereo16(int32_t* out, size_t outFrameCount,
+        AudioBufferProvider* provider) {
+
+    int32_t vl = mVolume[0];
+    int32_t vr = mVolume[1];
+
+    size_t inputIndex = mInputIndex;
+    uint32_t phaseFraction = mPhaseFraction;
+    uint32_t phaseIncrement = mPhaseIncrement;
+    size_t outputIndex = 0;
+    size_t outputSampleCount = outFrameCount * 2;
+    size_t inFrameCount = getInFrameCountRequired(outFrameCount);
+
+    // ALOGE("starting resample %d frames, inputIndex=%d, phaseFraction=%d, phaseIncrement=%d",
+    //      outFrameCount, inputIndex, phaseFraction, phaseIncrement);
+
+    while (outputIndex < outputSampleCount) {
+
+        // buffer is empty, fetch a new one
+        while (mBuffer.frameCount == 0) {
+            mBuffer.frameCount = inFrameCount;
+            provider->getNextBuffer(&mBuffer);
+            if (mBuffer.raw == NULL) {
+                goto resampleStereo16_exit;
+            }
+
+            // ALOGE("New buffer fetched: %d frames", mBuffer.frameCount);
+            if (mBuffer.frameCount > inputIndex) break;
+
+            inputIndex -= mBuffer.frameCount;
+            mX0L = mBuffer.i16[mBuffer.frameCount*2-2];
+            mX0R = mBuffer.i16[mBuffer.frameCount*2-1];
+            provider->releaseBuffer(&mBuffer);
+            // mBuffer.frameCount == 0 now so we reload a new buffer
+        }
+
+        int16_t *in = mBuffer.i16;
+
+        // handle boundary case
+        while (inputIndex == 0) {
+            // ALOGE("boundary case");
+            out[outputIndex++] += vl * Interp(mX0L, in[0], phaseFraction);
+            out[outputIndex++] += vr * Interp(mX0R, in[1], phaseFraction);
+            Advance(&inputIndex, &phaseFraction, phaseIncrement);
+            if (outputIndex == outputSampleCount) {
+                break;
+            }
+        }
+
+        // process input samples
+        // ALOGE("general case");
+
+#ifdef ASM_ARM_RESAMP1  // asm optimisation for ResamplerOrder1
+        if (inputIndex + 2 < mBuffer.frameCount) {
+            int32_t* maxOutPt;
+            int32_t maxInIdx;
+
+            maxOutPt = out + (outputSampleCount - 2);   // 2 because 2 frames per loop
+            maxInIdx = mBuffer.frameCount - 2;
+            AsmStereo16Loop(in, maxOutPt, maxInIdx, outputIndex, out, inputIndex, vl, vr,
+                    phaseFraction, phaseIncrement);
+        }
+#endif  // ASM_ARM_RESAMP1
+
+        while (outputIndex < outputSampleCount && inputIndex < mBuffer.frameCount) {
+            out[outputIndex++] += vl * Interp(in[inputIndex*2-2],
+                    in[inputIndex*2], phaseFraction);
+            out[outputIndex++] += vr * Interp(in[inputIndex*2-1],
+                    in[inputIndex*2+1], phaseFraction);
+            Advance(&inputIndex, &phaseFraction, phaseIncrement);
+        }
+
+        // ALOGE("loop done - outputIndex=%d, inputIndex=%d", outputIndex, inputIndex);
+
+        // if done with buffer, save samples
+        if (inputIndex >= mBuffer.frameCount) {
+            inputIndex -= mBuffer.frameCount;
+
+            // ALOGE("buffer done, new input index %d", inputIndex);
+
+            mX0L = mBuffer.i16[mBuffer.frameCount*2-2];
+            mX0R = mBuffer.i16[mBuffer.frameCount*2-1];
+            provider->releaseBuffer(&mBuffer);
+
+            // verify that the releaseBuffer resets the buffer frameCount
+            // ALOG_ASSERT(mBuffer.frameCount == 0);
+        }
+    }
+
+    // ALOGE("output buffer full - outputIndex=%d, inputIndex=%d", outputIndex, inputIndex);
+
+resampleStereo16_exit:
+    // save state
+    mInputIndex = inputIndex;
+    mPhaseFraction = phaseFraction;
+    return outputIndex / 2 /* channels for stereo */;
+}
+
+size_t AudioResamplerOrder1::resampleMono16(int32_t* out, size_t outFrameCount,
+        AudioBufferProvider* provider) {
+
+    int32_t vl = mVolume[0];
+    int32_t vr = mVolume[1];
+
+    size_t inputIndex = mInputIndex;
+    uint32_t phaseFraction = mPhaseFraction;
+    uint32_t phaseIncrement = mPhaseIncrement;
+    size_t outputIndex = 0;
+    size_t outputSampleCount = outFrameCount * 2;
+    size_t inFrameCount = getInFrameCountRequired(outFrameCount);
+
+    // ALOGE("starting resample %d frames, inputIndex=%d, phaseFraction=%d, phaseIncrement=%d",
+    //      outFrameCount, inputIndex, phaseFraction, phaseIncrement);
+    while (outputIndex < outputSampleCount) {
+        // buffer is empty, fetch a new one
+        while (mBuffer.frameCount == 0) {
+            mBuffer.frameCount = inFrameCount;
+            provider->getNextBuffer(&mBuffer);
+            if (mBuffer.raw == NULL) {
+                mInputIndex = inputIndex;
+                mPhaseFraction = phaseFraction;
+                goto resampleMono16_exit;
+            }
+            // ALOGE("New buffer fetched: %d frames", mBuffer.frameCount);
+            if (mBuffer.frameCount >  inputIndex) break;
+
+            inputIndex -= mBuffer.frameCount;
+            mX0L = mBuffer.i16[mBuffer.frameCount-1];
+            provider->releaseBuffer(&mBuffer);
+            // mBuffer.frameCount == 0 now so we reload a new buffer
+        }
+        int16_t *in = mBuffer.i16;
+
+        // handle boundary case
+        while (inputIndex == 0) {
+            // ALOGE("boundary case");
+            int32_t sample = Interp(mX0L, in[0], phaseFraction);
+            out[outputIndex++] += vl * sample;
+            out[outputIndex++] += vr * sample;
+            Advance(&inputIndex, &phaseFraction, phaseIncrement);
+            if (outputIndex == outputSampleCount) {
+                break;
+            }
+        }
+
+        // process input samples
+        // ALOGE("general case");
+
+#ifdef ASM_ARM_RESAMP1  // asm optimisation for ResamplerOrder1
+        if (inputIndex + 2 < mBuffer.frameCount) {
+            int32_t* maxOutPt;
+            int32_t maxInIdx;
+
+            maxOutPt = out + (outputSampleCount - 2);
+            maxInIdx = (int32_t)mBuffer.frameCount - 2;
+                AsmMono16Loop(in, maxOutPt, maxInIdx, outputIndex, out, inputIndex, vl, vr,
+                        phaseFraction, phaseIncrement);
+        }
+#endif  // ASM_ARM_RESAMP1
+
+        while (outputIndex < outputSampleCount && inputIndex < mBuffer.frameCount) {
+            int32_t sample = Interp(in[inputIndex-1], in[inputIndex],
+                    phaseFraction);
+            out[outputIndex++] += vl * sample;
+            out[outputIndex++] += vr * sample;
+            Advance(&inputIndex, &phaseFraction, phaseIncrement);
+        }
+
+
+        // ALOGE("loop done - outputIndex=%d, inputIndex=%d", outputIndex, inputIndex);
+
+        // if done with buffer, save samples
+        if (inputIndex >= mBuffer.frameCount) {
+            inputIndex -= mBuffer.frameCount;
+
+            // ALOGE("buffer done, new input index %d", inputIndex);
+
+            mX0L = mBuffer.i16[mBuffer.frameCount-1];
+            provider->releaseBuffer(&mBuffer);
+
+            // verify that the releaseBuffer resets the buffer frameCount
+            // ALOG_ASSERT(mBuffer.frameCount == 0);
+        }
+    }
+
+    // ALOGE("output buffer full - outputIndex=%d, inputIndex=%d", outputIndex, inputIndex);
+
+resampleMono16_exit:
+    // save state
+    mInputIndex = inputIndex;
+    mPhaseFraction = phaseFraction;
+    return outputIndex;
+}
+
+#ifdef ASM_ARM_RESAMP1  // asm optimisation for ResamplerOrder1
+
+/*******************************************************************
+*
+*   AsmMono16Loop
+*   asm optimized monotonic loop version; one loop is 2 frames
+*   Input:
+*       in : pointer on input samples
+*       maxOutPt : pointer on first not filled
+*       maxInIdx : index on first not used
+*       outputIndex : pointer on current output index
+*       out : pointer on output buffer
+*       inputIndex : pointer on current input index
+*       vl, vr : left and right gain
+*       phaseFraction : pointer on current phase fraction
+*       phaseIncrement
+*   Ouput:
+*       outputIndex :
+*       out : updated buffer
+*       inputIndex : index of next to use
+*       phaseFraction : phase fraction for next interpolation
+*
+*******************************************************************/
+__attribute__((noinline))
+void AudioResamplerOrder1::AsmMono16Loop(int16_t *in, int32_t* maxOutPt, int32_t maxInIdx,
+            size_t &outputIndex, int32_t* out, size_t &inputIndex, int32_t vl, int32_t vr,
+            uint32_t &phaseFraction, uint32_t phaseIncrement)
+{
+    (void)maxOutPt; // remove unused parameter warnings
+    (void)maxInIdx;
+    (void)outputIndex;
+    (void)out;
+    (void)inputIndex;
+    (void)vl;
+    (void)vr;
+    (void)phaseFraction;
+    (void)phaseIncrement;
+    (void)in;
+#define MO_PARAM5   "36"        // offset of parameter 5 (outputIndex)
+
+    asm(
+        "stmfd  sp!, {r4, r5, r6, r7, r8, r9, r10, r11, lr}\n"
+        // get parameters
+        "   ldr r6, [sp, #" MO_PARAM5 " + 20]\n"    // &phaseFraction
+        "   ldr r6, [r6]\n"                         // phaseFraction
+        "   ldr r7, [sp, #" MO_PARAM5 " + 8]\n"     // &inputIndex
+        "   ldr r7, [r7]\n"                         // inputIndex
+        "   ldr r8, [sp, #" MO_PARAM5 " + 4]\n"     // out
+        "   ldr r0, [sp, #" MO_PARAM5 " + 0]\n"     // &outputIndex
+        "   ldr r0, [r0]\n"                         // outputIndex
+        "   add r8, r8, r0, asl #2\n"               // curOut
+        "   ldr r9, [sp, #" MO_PARAM5 " + 24]\n"    // phaseIncrement
+        "   ldr r10, [sp, #" MO_PARAM5 " + 12]\n"   // vl
+        "   ldr r11, [sp, #" MO_PARAM5 " + 16]\n"   // vr
+
+        // r0 pin, x0, Samp
+
+        // r1 in
+        // r2 maxOutPt
+        // r3 maxInIdx
+
+        // r4 x1, i1, i3, Out1
+        // r5 out0
+
+        // r6 frac
+        // r7 inputIndex
+        // r8 curOut
+
+        // r9 inc
+        // r10 vl
+        // r11 vr
+
+        // r12
+        // r13 sp
+        // r14
+
+        // the following loop works on 2 frames
+
+        "1:\n"
+        "   cmp r8, r2\n"                   // curOut - maxCurOut
+        "   bcs 2f\n"
+
+#define MO_ONE_FRAME \
+    "   add r0, r1, r7, asl #1\n"       /* in + inputIndex */\
+    "   ldrsh r4, [r0]\n"               /* in[inputIndex] */\
+    "   ldr r5, [r8]\n"                 /* out[outputIndex] */\
+    "   ldrsh r0, [r0, #-2]\n"          /* in[inputIndex-1] */\
+    "   bic r6, r6, #0xC0000000\n"      /* phaseFraction & ... */\
+    "   sub r4, r4, r0\n"               /* in[inputIndex] - in[inputIndex-1] */\
+    "   mov r4, r4, lsl #2\n"           /* <<2 */\
+    "   smulwt r4, r4, r6\n"            /* (x1-x0)*.. */\
+    "   add r6, r6, r9\n"               /* phaseFraction + phaseIncrement */\
+    "   add r0, r0, r4\n"               /* x0 - (..) */\
+    "   mla r5, r0, r10, r5\n"          /* vl*interp + out[] */\
+    "   ldr r4, [r8, #4]\n"             /* out[outputIndex+1] */\
+    "   str r5, [r8], #4\n"             /* out[outputIndex++] = ... */\
+    "   mla r4, r0, r11, r4\n"          /* vr*interp + out[] */\
+    "   add r7, r7, r6, lsr #30\n"      /* inputIndex + phaseFraction>>30 */\
+    "   str r4, [r8], #4\n"             /* out[outputIndex++] = ... */
+
+        MO_ONE_FRAME    // frame 1
+        MO_ONE_FRAME    // frame 2
+
+        "   cmp r7, r3\n"                   // inputIndex - maxInIdx
+        "   bcc 1b\n"
+        "2:\n"
+
+        "   bic r6, r6, #0xC0000000\n"             // phaseFraction & ...
+        // save modified values
+        "   ldr r0, [sp, #" MO_PARAM5 " + 20]\n"    // &phaseFraction
+        "   str r6, [r0]\n"                         // phaseFraction
+        "   ldr r0, [sp, #" MO_PARAM5 " + 8]\n"     // &inputIndex
+        "   str r7, [r0]\n"                         // inputIndex
+        "   ldr r0, [sp, #" MO_PARAM5 " + 4]\n"     // out
+        "   sub r8, r0\n"                           // curOut - out
+        "   asr r8, #2\n"                           // new outputIndex
+        "   ldr r0, [sp, #" MO_PARAM5 " + 0]\n"     // &outputIndex
+        "   str r8, [r0]\n"                         // save outputIndex
+
+        "   ldmfd   sp!, {r4, r5, r6, r7, r8, r9, r10, r11, pc}\n"
+    );
+}
+
+/*******************************************************************
+*
+*   AsmStereo16Loop
+*   asm optimized stereo loop version; one loop is 2 frames
+*   Input:
+*       in : pointer on input samples
+*       maxOutPt : pointer on first not filled
+*       maxInIdx : index on first not used
+*       outputIndex : pointer on current output index
+*       out : pointer on output buffer
+*       inputIndex : pointer on current input index
+*       vl, vr : left and right gain
+*       phaseFraction : pointer on current phase fraction
+*       phaseIncrement
+*   Ouput:
+*       outputIndex :
+*       out : updated buffer
+*       inputIndex : index of next to use
+*       phaseFraction : phase fraction for next interpolation
+*
+*******************************************************************/
+__attribute__((noinline))
+void AudioResamplerOrder1::AsmStereo16Loop(int16_t *in, int32_t* maxOutPt, int32_t maxInIdx,
+            size_t &outputIndex, int32_t* out, size_t &inputIndex, int32_t vl, int32_t vr,
+            uint32_t &phaseFraction, uint32_t phaseIncrement)
+{
+    (void)maxOutPt; // remove unused parameter warnings
+    (void)maxInIdx;
+    (void)outputIndex;
+    (void)out;
+    (void)inputIndex;
+    (void)vl;
+    (void)vr;
+    (void)phaseFraction;
+    (void)phaseIncrement;
+    (void)in;
+#define ST_PARAM5    "40"     // offset of parameter 5 (outputIndex)
+    asm(
+        "stmfd  sp!, {r4, r5, r6, r7, r8, r9, r10, r11, r12, lr}\n"
+        // get parameters
+        "   ldr r6, [sp, #" ST_PARAM5 " + 20]\n"    // &phaseFraction
+        "   ldr r6, [r6]\n"                         // phaseFraction
+        "   ldr r7, [sp, #" ST_PARAM5 " + 8]\n"     // &inputIndex
+        "   ldr r7, [r7]\n"                         // inputIndex
+        "   ldr r8, [sp, #" ST_PARAM5 " + 4]\n"     // out
+        "   ldr r0, [sp, #" ST_PARAM5 " + 0]\n"     // &outputIndex
+        "   ldr r0, [r0]\n"                         // outputIndex
+        "   add r8, r8, r0, asl #2\n"               // curOut
+        "   ldr r9, [sp, #" ST_PARAM5 " + 24]\n"    // phaseIncrement
+        "   ldr r10, [sp, #" ST_PARAM5 " + 12]\n"   // vl
+        "   ldr r11, [sp, #" ST_PARAM5 " + 16]\n"   // vr
+
+        // r0 pin, x0, Samp
+
+        // r1 in
+        // r2 maxOutPt
+        // r3 maxInIdx
+
+        // r4 x1, i1, i3, out1
+        // r5 out0
+
+        // r6 frac
+        // r7 inputIndex
+        // r8 curOut
+
+        // r9 inc
+        // r10 vl
+        // r11 vr
+
+        // r12 temporary
+        // r13 sp
+        // r14
+
+        "3:\n"
+        "   cmp r8, r2\n"                   // curOut - maxCurOut
+        "   bcs 4f\n"
+
+#define ST_ONE_FRAME \
+    "   bic r6, r6, #0xC0000000\n"      /* phaseFraction & ... */\
+\
+    "   add r0, r1, r7, asl #2\n"       /* in + 2*inputIndex */\
+\
+    "   ldrsh r4, [r0]\n"               /* in[2*inputIndex] */\
+    "   ldr r5, [r8]\n"                 /* out[outputIndex] */\
+    "   ldrsh r12, [r0, #-4]\n"         /* in[2*inputIndex-2] */\
+    "   sub r4, r4, r12\n"              /* in[2*InputIndex] - in[2*InputIndex-2] */\
+    "   mov r4, r4, lsl #2\n"           /* <<2 */\
+    "   smulwt r4, r4, r6\n"            /* (x1-x0)*.. */\
+    "   add r12, r12, r4\n"             /* x0 - (..) */\
+    "   mla r5, r12, r10, r5\n"         /* vl*interp + out[] */\
+    "   ldr r4, [r8, #4]\n"             /* out[outputIndex+1] */\
+    "   str r5, [r8], #4\n"             /* out[outputIndex++] = ... */\
+\
+    "   ldrsh r12, [r0, #+2]\n"         /* in[2*inputIndex+1] */\
+    "   ldrsh r0, [r0, #-2]\n"          /* in[2*inputIndex-1] */\
+    "   sub r12, r12, r0\n"             /* in[2*InputIndex] - in[2*InputIndex-2] */\
+    "   mov r12, r12, lsl #2\n"         /* <<2 */\
+    "   smulwt r12, r12, r6\n"          /* (x1-x0)*.. */\
+    "   add r12, r0, r12\n"             /* x0 - (..) */\
+    "   mla r4, r12, r11, r4\n"         /* vr*interp + out[] */\
+    "   str r4, [r8], #4\n"             /* out[outputIndex++] = ... */\
+\
+    "   add r6, r6, r9\n"               /* phaseFraction + phaseIncrement */\
+    "   add r7, r7, r6, lsr #30\n"      /* inputIndex + phaseFraction>>30 */
+
+    ST_ONE_FRAME    // frame 1
+    ST_ONE_FRAME    // frame 1
+
+        "   cmp r7, r3\n"                       // inputIndex - maxInIdx
+        "   bcc 3b\n"
+        "4:\n"
+
+        "   bic r6, r6, #0xC0000000\n"              // phaseFraction & ...
+        // save modified values
+        "   ldr r0, [sp, #" ST_PARAM5 " + 20]\n"    // &phaseFraction
+        "   str r6, [r0]\n"                         // phaseFraction
+        "   ldr r0, [sp, #" ST_PARAM5 " + 8]\n"     // &inputIndex
+        "   str r7, [r0]\n"                         // inputIndex
+        "   ldr r0, [sp, #" ST_PARAM5 " + 4]\n"     // out
+        "   sub r8, r0\n"                           // curOut - out
+        "   asr r8, #2\n"                           // new outputIndex
+        "   ldr r0, [sp, #" ST_PARAM5 " + 0]\n"     // &outputIndex
+        "   str r8, [r0]\n"                         // save outputIndex
+
+        "   ldmfd   sp!, {r4, r5, r6, r7, r8, r9, r10, r11, r12, pc}\n"
+    );
+}
+
+#endif  // ASM_ARM_RESAMP1
+
+
+// ----------------------------------------------------------------------------
+
+} // namespace android
diff --git a/media/libaudioprocessing/AudioResamplerCubic.cpp b/media/libaudioprocessing/AudioResamplerCubic.cpp
new file mode 100644
index 0000000..9bcd8e1
--- /dev/null
+++ b/media/libaudioprocessing/AudioResamplerCubic.cpp
@@ -0,0 +1,188 @@
+/*
+ * Copyright (C) 2007 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "AudioResamplerCubic"
+
+#include <stdint.h>
+#include <string.h>
+#include <sys/types.h>
+
+#include <log/log.h>
+
+#include "AudioResamplerCubic.h"
+
+namespace android {
+// ----------------------------------------------------------------------------
+
+void AudioResamplerCubic::init() {
+    memset(&left, 0, sizeof(state));
+    memset(&right, 0, sizeof(state));
+}
+
+size_t AudioResamplerCubic::resample(int32_t* out, size_t outFrameCount,
+        AudioBufferProvider* provider) {
+
+    // should never happen, but we overflow if it does
+    // ALOG_ASSERT(outFrameCount < 32767);
+
+    // select the appropriate resampler
+    switch (mChannelCount) {
+    case 1:
+        return resampleMono16(out, outFrameCount, provider);
+    case 2:
+        return resampleStereo16(out, outFrameCount, provider);
+    default:
+        LOG_ALWAYS_FATAL("invalid channel count: %d", mChannelCount);
+        return 0;
+    }
+}
+
+size_t AudioResamplerCubic::resampleStereo16(int32_t* out, size_t outFrameCount,
+        AudioBufferProvider* provider) {
+
+    int32_t vl = mVolume[0];
+    int32_t vr = mVolume[1];
+
+    size_t inputIndex = mInputIndex;
+    uint32_t phaseFraction = mPhaseFraction;
+    uint32_t phaseIncrement = mPhaseIncrement;
+    size_t outputIndex = 0;
+    size_t outputSampleCount = outFrameCount * 2;
+    size_t inFrameCount = getInFrameCountRequired(outFrameCount);
+
+    // fetch first buffer
+    if (mBuffer.frameCount == 0) {
+        mBuffer.frameCount = inFrameCount;
+        provider->getNextBuffer(&mBuffer);
+        if (mBuffer.raw == NULL) {
+            return 0;
+        }
+        // ALOGW("New buffer: offset=%p, frames=%dn", mBuffer.raw, mBuffer.frameCount);
+    }
+    int16_t *in = mBuffer.i16;
+
+    while (outputIndex < outputSampleCount) {
+        int32_t x;
+
+        // calculate output sample
+        x = phaseFraction >> kPreInterpShift;
+        out[outputIndex++] += vl * interp(&left, x);
+        out[outputIndex++] += vr * interp(&right, x);
+        // out[outputIndex++] += vr * in[inputIndex*2];
+
+        // increment phase
+        phaseFraction += phaseIncrement;
+        uint32_t indexIncrement = (phaseFraction >> kNumPhaseBits);
+        phaseFraction &= kPhaseMask;
+
+        // time to fetch another sample
+        while (indexIncrement--) {
+
+            inputIndex++;
+            if (inputIndex == mBuffer.frameCount) {
+                inputIndex = 0;
+                provider->releaseBuffer(&mBuffer);
+                mBuffer.frameCount = inFrameCount;
+                provider->getNextBuffer(&mBuffer);
+                if (mBuffer.raw == NULL) {
+                    goto save_state;  // ugly, but efficient
+                }
+                in = mBuffer.i16;
+                // ALOGW("New buffer: offset=%p, frames=%d", mBuffer.raw, mBuffer.frameCount);
+            }
+
+            // advance sample state
+            advance(&left, in[inputIndex*2]);
+            advance(&right, in[inputIndex*2+1]);
+        }
+    }
+
+save_state:
+    // ALOGW("Done: index=%d, fraction=%u", inputIndex, phaseFraction);
+    mInputIndex = inputIndex;
+    mPhaseFraction = phaseFraction;
+    return outputIndex / 2 /* channels for stereo */;
+}
+
+size_t AudioResamplerCubic::resampleMono16(int32_t* out, size_t outFrameCount,
+        AudioBufferProvider* provider) {
+
+    int32_t vl = mVolume[0];
+    int32_t vr = mVolume[1];
+
+    size_t inputIndex = mInputIndex;
+    uint32_t phaseFraction = mPhaseFraction;
+    uint32_t phaseIncrement = mPhaseIncrement;
+    size_t outputIndex = 0;
+    size_t outputSampleCount = outFrameCount * 2;
+    size_t inFrameCount = getInFrameCountRequired(outFrameCount);
+
+    // fetch first buffer
+    if (mBuffer.frameCount == 0) {
+        mBuffer.frameCount = inFrameCount;
+        provider->getNextBuffer(&mBuffer);
+        if (mBuffer.raw == NULL) {
+            return 0;
+        }
+        // ALOGW("New buffer: offset=%p, frames=%d", mBuffer.raw, mBuffer.frameCount);
+    }
+    int16_t *in = mBuffer.i16;
+
+    while (outputIndex < outputSampleCount) {
+        int32_t sample;
+        int32_t x;
+
+        // calculate output sample
+        x = phaseFraction >> kPreInterpShift;
+        sample = interp(&left, x);
+        out[outputIndex++] += vl * sample;
+        out[outputIndex++] += vr * sample;
+
+        // increment phase
+        phaseFraction += phaseIncrement;
+        uint32_t indexIncrement = (phaseFraction >> kNumPhaseBits);
+        phaseFraction &= kPhaseMask;
+
+        // time to fetch another sample
+        while (indexIncrement--) {
+
+            inputIndex++;
+            if (inputIndex == mBuffer.frameCount) {
+                inputIndex = 0;
+                provider->releaseBuffer(&mBuffer);
+                mBuffer.frameCount = inFrameCount;
+                provider->getNextBuffer(&mBuffer);
+                if (mBuffer.raw == NULL) {
+                    goto save_state;  // ugly, but efficient
+                }
+                // ALOGW("New buffer: offset=%p, frames=%dn", mBuffer.raw, mBuffer.frameCount);
+                in = mBuffer.i16;
+            }
+
+            // advance sample state
+            advance(&left, in[inputIndex]);
+        }
+    }
+
+save_state:
+    // ALOGW("Done: index=%d, fraction=%u", inputIndex, phaseFraction);
+    mInputIndex = inputIndex;
+    mPhaseFraction = phaseFraction;
+    return outputIndex;
+}
+
+// ----------------------------------------------------------------------------
+} // namespace android
diff --git a/media/libaudioprocessing/AudioResamplerCubic.h b/media/libaudioprocessing/AudioResamplerCubic.h
new file mode 100644
index 0000000..defaf33
--- /dev/null
+++ b/media/libaudioprocessing/AudioResamplerCubic.h
@@ -0,0 +1,68 @@
+/*
+ * Copyright (C) 2007 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_AUDIO_RESAMPLER_CUBIC_H
+#define ANDROID_AUDIO_RESAMPLER_CUBIC_H
+
+#include <stdint.h>
+#include <sys/types.h>
+#include <android/log.h>
+
+#include <media/AudioResampler.h>
+
+namespace android {
+// ----------------------------------------------------------------------------
+
+class AudioResamplerCubic : public AudioResampler {
+public:
+    AudioResamplerCubic(int inChannelCount, int32_t sampleRate) :
+        AudioResampler(inChannelCount, sampleRate, MED_QUALITY) {
+    }
+    virtual size_t resample(int32_t* out, size_t outFrameCount,
+            AudioBufferProvider* provider);
+private:
+    // number of bits used in interpolation multiply - 14 bits avoids overflow
+    static const int kNumInterpBits = 14;
+
+    // bits to shift the phase fraction down to avoid overflow
+    static const int kPreInterpShift = kNumPhaseBits - kNumInterpBits;
+    typedef struct {
+        int32_t a, b, c, y0, y1, y2, y3;
+    } state;
+    void init();
+    size_t resampleMono16(int32_t* out, size_t outFrameCount,
+            AudioBufferProvider* provider);
+    size_t resampleStereo16(int32_t* out, size_t outFrameCount,
+            AudioBufferProvider* provider);
+    static inline int32_t interp(state* p, int32_t x) {
+        return (((((p->a * x >> 14) + p->b) * x >> 14) + p->c) * x >> 14) + p->y1;
+    }
+    static inline void advance(state* p, int16_t in) {
+        p->y0 = p->y1;
+        p->y1 = p->y2;
+        p->y2 = p->y3;
+        p->y3 = in;
+        p->a = (3 * (p->y1 - p->y2) - p->y0 + p->y3) >> 1;
+        p->b = (p->y2 << 1) + p->y0 - (((5 * p->y1 + p->y3)) >> 1);
+        p->c = (p->y2 - p->y0) >> 1;
+    }
+    state left, right;
+};
+
+// ----------------------------------------------------------------------------
+} // namespace android
+
+#endif /*ANDROID_AUDIO_RESAMPLER_CUBIC_H*/
diff --git a/media/libaudioprocessing/AudioResamplerDyn.cpp b/media/libaudioprocessing/AudioResamplerDyn.cpp
new file mode 100644
index 0000000..8f7b982
--- /dev/null
+++ b/media/libaudioprocessing/AudioResamplerDyn.cpp
@@ -0,0 +1,633 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "AudioResamplerDyn"
+//#define LOG_NDEBUG 0
+
+#include <malloc.h>
+#include <string.h>
+#include <stdlib.h>
+#include <dlfcn.h>
+#include <math.h>
+
+#include <cutils/compiler.h>
+#include <cutils/properties.h>
+#include <utils/Debug.h>
+#include <utils/Log.h>
+#include <audio_utils/primitives.h>
+
+#include "AudioResamplerFirOps.h" // USE_NEON, USE_SSE and USE_INLINE_ASSEMBLY defined here
+#include "AudioResamplerFirProcess.h"
+#include "AudioResamplerFirProcessNeon.h"
+#include "AudioResamplerFirProcessSSE.h"
+#include "AudioResamplerFirGen.h" // requires math.h
+#include "AudioResamplerDyn.h"
+
+//#define DEBUG_RESAMPLER
+
+namespace android {
+
+/*
+ * InBuffer is a type agnostic input buffer.
+ *
+ * Layout of the state buffer for halfNumCoefs=8.
+ *
+ * [rrrrrrppppppppnnnnnnnnrrrrrrrrrrrrrrrrrrr.... rrrrrrr]
+ *  S            I                                R
+ *
+ * S = mState
+ * I = mImpulse
+ * R = mRingFull
+ * p = past samples, convoluted with the (p)ositive side of sinc()
+ * n = future samples, convoluted with the (n)egative side of sinc()
+ * r = extra space for implementing the ring buffer
+ */
+
+template<typename TC, typename TI, typename TO>
+AudioResamplerDyn<TC, TI, TO>::InBuffer::InBuffer()
+    : mState(NULL), mImpulse(NULL), mRingFull(NULL), mStateCount(0)
+{
+}
+
+template<typename TC, typename TI, typename TO>
+AudioResamplerDyn<TC, TI, TO>::InBuffer::~InBuffer()
+{
+    init();
+}
+
+template<typename TC, typename TI, typename TO>
+void AudioResamplerDyn<TC, TI, TO>::InBuffer::init()
+{
+    free(mState);
+    mState = NULL;
+    mImpulse = NULL;
+    mRingFull = NULL;
+    mStateCount = 0;
+}
+
+// resizes the state buffer to accommodate the appropriate filter length
+template<typename TC, typename TI, typename TO>
+void AudioResamplerDyn<TC, TI, TO>::InBuffer::resize(int CHANNELS, int halfNumCoefs)
+{
+    // calculate desired state size
+    size_t stateCount = halfNumCoefs * CHANNELS * 2 * kStateSizeMultipleOfFilterLength;
+
+    // check if buffer needs resizing
+    if (mState
+            && stateCount == mStateCount
+            && mRingFull-mState == (ssize_t) (mStateCount-halfNumCoefs*CHANNELS)) {
+        return;
+    }
+
+    // create new buffer
+    TI* state = NULL;
+    (void)posix_memalign(reinterpret_cast<void**>(&state), 32, stateCount*sizeof(*state));
+    memset(state, 0, stateCount*sizeof(*state));
+
+    // attempt to preserve state
+    if (mState) {
+        TI* srcLo = mImpulse - halfNumCoefs*CHANNELS;
+        TI* srcHi = mImpulse + halfNumCoefs*CHANNELS;
+        TI* dst = state;
+
+        if (srcLo < mState) {
+            dst += mState-srcLo;
+            srcLo = mState;
+        }
+        if (srcHi > mState + mStateCount) {
+            srcHi = mState + mStateCount;
+        }
+        memcpy(dst, srcLo, (srcHi - srcLo) * sizeof(*srcLo));
+        free(mState);
+    }
+
+    // set class member vars
+    mState = state;
+    mStateCount = stateCount;
+    mImpulse = state + halfNumCoefs*CHANNELS; // actually one sample greater than needed
+    mRingFull = state + mStateCount - halfNumCoefs*CHANNELS;
+}
+
+// copy in the input data into the head (impulse+halfNumCoefs) of the buffer.
+template<typename TC, typename TI, typename TO>
+template<int CHANNELS>
+void AudioResamplerDyn<TC, TI, TO>::InBuffer::readAgain(TI*& impulse, const int halfNumCoefs,
+        const TI* const in, const size_t inputIndex)
+{
+    TI* head = impulse + halfNumCoefs*CHANNELS;
+    for (size_t i=0 ; i<CHANNELS ; i++) {
+        head[i] = in[inputIndex*CHANNELS + i];
+    }
+}
+
+// advance the impulse pointer, and load in data into the head (impulse+halfNumCoefs)
+template<typename TC, typename TI, typename TO>
+template<int CHANNELS>
+void AudioResamplerDyn<TC, TI, TO>::InBuffer::readAdvance(TI*& impulse, const int halfNumCoefs,
+        const TI* const in, const size_t inputIndex)
+{
+    impulse += CHANNELS;
+
+    if (CC_UNLIKELY(impulse >= mRingFull)) {
+        const size_t shiftDown = mRingFull - mState - halfNumCoefs*CHANNELS;
+        memcpy(mState, mState+shiftDown, halfNumCoefs*CHANNELS*2*sizeof(TI));
+        impulse -= shiftDown;
+    }
+    readAgain<CHANNELS>(impulse, halfNumCoefs, in, inputIndex);
+}
+
+template<typename TC, typename TI, typename TO>
+void AudioResamplerDyn<TC, TI, TO>::InBuffer::reset()
+{
+    // clear resampler state
+    if (mState != nullptr) {
+        memset(mState, 0, mStateCount * sizeof(TI));
+    }
+}
+
+template<typename TC, typename TI, typename TO>
+void AudioResamplerDyn<TC, TI, TO>::Constants::set(
+        int L, int halfNumCoefs, int inSampleRate, int outSampleRate)
+{
+    int bits = 0;
+    int lscale = inSampleRate/outSampleRate < 2 ? L - 1 :
+            static_cast<int>(static_cast<uint64_t>(L)*inSampleRate/outSampleRate);
+    for (int i=lscale; i; ++bits, i>>=1)
+        ;
+    mL = L;
+    mShift = kNumPhaseBits - bits;
+    mHalfNumCoefs = halfNumCoefs;
+}
+
+template<typename TC, typename TI, typename TO>
+AudioResamplerDyn<TC, TI, TO>::AudioResamplerDyn(
+        int inChannelCount, int32_t sampleRate, src_quality quality)
+    : AudioResampler(inChannelCount, sampleRate, quality),
+      mResampleFunc(0), mFilterSampleRate(0), mFilterQuality(DEFAULT_QUALITY),
+    mCoefBuffer(NULL)
+{
+    mVolumeSimd[0] = mVolumeSimd[1] = 0;
+    // The AudioResampler base class assumes we are always ready for 1:1 resampling.
+    // We reset mInSampleRate to 0, so setSampleRate() will calculate filters for
+    // setSampleRate() for 1:1. (May be removed if precalculated filters are used.)
+    mInSampleRate = 0;
+    mConstants.set(128, 8, mSampleRate, mSampleRate); // TODO: set better
+}
+
+template<typename TC, typename TI, typename TO>
+AudioResamplerDyn<TC, TI, TO>::~AudioResamplerDyn()
+{
+    free(mCoefBuffer);
+}
+
+template<typename TC, typename TI, typename TO>
+void AudioResamplerDyn<TC, TI, TO>::init()
+{
+    mFilterSampleRate = 0; // always trigger new filter generation
+    mInBuffer.init();
+}
+
+template<typename TC, typename TI, typename TO>
+void AudioResamplerDyn<TC, TI, TO>::setVolume(float left, float right)
+{
+    AudioResampler::setVolume(left, right);
+    if (is_same<TO, float>::value || is_same<TO, double>::value) {
+        mVolumeSimd[0] = static_cast<TO>(left);
+        mVolumeSimd[1] = static_cast<TO>(right);
+    } else {  // integer requires scaling to U4_28 (rounding down)
+        // integer volumes are clamped to 0 to UNITY_GAIN so there
+        // are no issues with signed overflow.
+        mVolumeSimd[0] = u4_28_from_float(clampFloatVol(left));
+        mVolumeSimd[1] = u4_28_from_float(clampFloatVol(right));
+    }
+}
+
+template<typename T> T max(T a, T b) {return a > b ? a : b;}
+
+template<typename T> T absdiff(T a, T b) {return a > b ? a - b : b - a;}
+
+template<typename TC, typename TI, typename TO>
+void AudioResamplerDyn<TC, TI, TO>::createKaiserFir(Constants &c,
+        double stopBandAtten, int inSampleRate, int outSampleRate, double tbwCheat)
+{
+    TC* buf = NULL;
+    static const double atten = 0.9998;   // to avoid ripple overflow
+    double fcr;
+    double tbw = firKaiserTbw(c.mHalfNumCoefs, stopBandAtten);
+
+    (void)posix_memalign(reinterpret_cast<void**>(&buf), 32, (c.mL+1)*c.mHalfNumCoefs*sizeof(TC));
+    if (inSampleRate < outSampleRate) { // upsample
+        fcr = max(0.5*tbwCheat - tbw/2, tbw/2);
+    } else { // downsample
+        fcr = max(0.5*tbwCheat*outSampleRate/inSampleRate - tbw/2, tbw/2);
+    }
+    // create and set filter
+    firKaiserGen(buf, c.mL, c.mHalfNumCoefs, stopBandAtten, fcr, atten);
+    c.mFirCoefs = buf;
+    if (mCoefBuffer) {
+        free(mCoefBuffer);
+    }
+    mCoefBuffer = buf;
+#ifdef DEBUG_RESAMPLER
+    // print basic filter stats
+    printf("L:%d  hnc:%d  stopBandAtten:%lf  fcr:%lf  atten:%lf  tbw:%lf\n",
+            c.mL, c.mHalfNumCoefs, stopBandAtten, fcr, atten, tbw);
+    // test the filter and report results
+    double fp = (fcr - tbw/2)/c.mL;
+    double fs = (fcr + tbw/2)/c.mL;
+    double passMin, passMax, passRipple;
+    double stopMax, stopRipple;
+    testFir(buf, c.mL, c.mHalfNumCoefs, fp, fs, /*passSteps*/ 1000, /*stopSteps*/ 100000,
+            passMin, passMax, passRipple, stopMax, stopRipple);
+    printf("passband(%lf, %lf): %.8lf %.8lf %.8lf\n", 0., fp, passMin, passMax, passRipple);
+    printf("stopband(%lf, %lf): %.8lf %.3lf\n", fs, 0.5, stopMax, stopRipple);
+#endif
+}
+
+// recursive gcd. Using objdump, it appears the tail recursion is converted to a while loop.
+static int gcd(int n, int m)
+{
+    if (m == 0) {
+        return n;
+    }
+    return gcd(m, n % m);
+}
+
+static bool isClose(int32_t newSampleRate, int32_t prevSampleRate,
+        int32_t filterSampleRate, int32_t outSampleRate)
+{
+
+    // different upsampling ratios do not need a filter change.
+    if (filterSampleRate != 0
+            && filterSampleRate < outSampleRate
+            && newSampleRate < outSampleRate)
+        return true;
+
+    // check design criteria again if downsampling is detected.
+    int pdiff = absdiff(newSampleRate, prevSampleRate);
+    int adiff = absdiff(newSampleRate, filterSampleRate);
+
+    // allow up to 6% relative change increments.
+    // allow up to 12% absolute change increments (from filter design)
+    return pdiff < prevSampleRate>>4 && adiff < filterSampleRate>>3;
+}
+
+template<typename TC, typename TI, typename TO>
+void AudioResamplerDyn<TC, TI, TO>::setSampleRate(int32_t inSampleRate)
+{
+    if (mInSampleRate == inSampleRate) {
+        return;
+    }
+    int32_t oldSampleRate = mInSampleRate;
+    uint32_t oldPhaseWrapLimit = mConstants.mL << mConstants.mShift;
+    bool useS32 = false;
+
+    mInSampleRate = inSampleRate;
+
+    // TODO: Add precalculated Equiripple filters
+
+    if (mFilterQuality != getQuality() ||
+            !isClose(inSampleRate, oldSampleRate, mFilterSampleRate, mSampleRate)) {
+        mFilterSampleRate = inSampleRate;
+        mFilterQuality = getQuality();
+
+        // Begin Kaiser Filter computation
+        //
+        // The quantization floor for S16 is about 96db - 10*log_10(#length) + 3dB.
+        // Keep the stop band attenuation no greater than 84-85dB for 32 length S16 filters
+        //
+        // For s32 we keep the stop band attenuation at the same as 16b resolution, about
+        // 96-98dB
+        //
+
+        double stopBandAtten;
+        double tbwCheat = 1.; // how much we "cheat" into aliasing
+        int halfLength;
+        if (mFilterQuality == DYN_HIGH_QUALITY) {
+            // 32b coefficients, 64 length
+            useS32 = true;
+            stopBandAtten = 98.;
+            if (inSampleRate >= mSampleRate * 4) {
+                halfLength = 48;
+            } else if (inSampleRate >= mSampleRate * 2) {
+                halfLength = 40;
+            } else {
+                halfLength = 32;
+            }
+        } else if (mFilterQuality == DYN_LOW_QUALITY) {
+            // 16b coefficients, 16-32 length
+            useS32 = false;
+            stopBandAtten = 80.;
+            if (inSampleRate >= mSampleRate * 4) {
+                halfLength = 24;
+            } else if (inSampleRate >= mSampleRate * 2) {
+                halfLength = 16;
+            } else {
+                halfLength = 8;
+            }
+            if (inSampleRate <= mSampleRate) {
+                tbwCheat = 1.05;
+            } else {
+                tbwCheat = 1.03;
+            }
+        } else { // DYN_MED_QUALITY
+            // 16b coefficients, 32-64 length
+            // note: > 64 length filters with 16b coefs can have quantization noise problems
+            useS32 = false;
+            stopBandAtten = 84.;
+            if (inSampleRate >= mSampleRate * 4) {
+                halfLength = 32;
+            } else if (inSampleRate >= mSampleRate * 2) {
+                halfLength = 24;
+            } else {
+                halfLength = 16;
+            }
+            if (inSampleRate <= mSampleRate) {
+                tbwCheat = 1.03;
+            } else {
+                tbwCheat = 1.01;
+            }
+        }
+
+        // determine the number of polyphases in the filterbank.
+        // for 16b, it is desirable to have 2^(16/2) = 256 phases.
+        // https://ccrma.stanford.edu/~jos/resample/Relation_Interpolation_Error_Quantization.html
+        //
+        // We are a bit more lax on this.
+
+        int phases = mSampleRate / gcd(mSampleRate, inSampleRate);
+
+        // TODO: Once dynamic sample rate change is an option, the code below
+        // should be modified to execute only when dynamic sample rate change is enabled.
+        //
+        // as above, #phases less than 63 is too few phases for accurate linear interpolation.
+        // we increase the phases to compensate, but more phases means more memory per
+        // filter and more time to compute the filter.
+        //
+        // if we know that the filter will be used for dynamic sample rate changes,
+        // that would allow us skip this part for fixed sample rate resamplers.
+        //
+        while (phases<63) {
+            phases *= 2; // this code only needed to support dynamic rate changes
+        }
+
+        if (phases>=256) {  // too many phases, always interpolate
+            phases = 127;
+        }
+
+        // create the filter
+        mConstants.set(phases, halfLength, inSampleRate, mSampleRate);
+        createKaiserFir(mConstants, stopBandAtten,
+                inSampleRate, mSampleRate, tbwCheat);
+    } // End Kaiser filter
+
+    // update phase and state based on the new filter.
+    const Constants& c(mConstants);
+    mInBuffer.resize(mChannelCount, c.mHalfNumCoefs);
+    const uint32_t phaseWrapLimit = c.mL << c.mShift;
+    // try to preserve as much of the phase fraction as possible for on-the-fly changes
+    mPhaseFraction = static_cast<unsigned long long>(mPhaseFraction)
+            * phaseWrapLimit / oldPhaseWrapLimit;
+    mPhaseFraction %= phaseWrapLimit; // should not do anything, but just in case.
+    mPhaseIncrement = static_cast<uint32_t>(static_cast<uint64_t>(phaseWrapLimit)
+            * inSampleRate / mSampleRate);
+
+    // determine which resampler to use
+    // check if locked phase (works only if mPhaseIncrement has no "fractional phase bits")
+    int locked = (mPhaseIncrement << (sizeof(mPhaseIncrement)*8 - c.mShift)) == 0;
+    if (locked) {
+        mPhaseFraction = mPhaseFraction >> c.mShift << c.mShift; // remove fractional phase
+    }
+
+    // stride is the minimum number of filter coefficients processed per loop iteration.
+    // We currently only allow a stride of 16 to match with SIMD processing.
+    // This means that the filter length must be a multiple of 16,
+    // or half the filter length (mHalfNumCoefs) must be a multiple of 8.
+    //
+    // Note: A stride of 2 is achieved with non-SIMD processing.
+    int stride = ((c.mHalfNumCoefs & 7) == 0) ? 16 : 2;
+    LOG_ALWAYS_FATAL_IF(stride < 16, "Resampler stride must be 16 or more");
+    LOG_ALWAYS_FATAL_IF(mChannelCount < 1 || mChannelCount > 8,
+            "Resampler channels(%d) must be between 1 to 8", mChannelCount);
+    // stride 16 (falls back to stride 2 for machines that do not support NEON)
+    if (locked) {
+        switch (mChannelCount) {
+        case 1:
+            mResampleFunc = &AudioResamplerDyn<TC, TI, TO>::resample<1, true, 16>;
+            break;
+        case 2:
+            mResampleFunc = &AudioResamplerDyn<TC, TI, TO>::resample<2, true, 16>;
+            break;
+        case 3:
+            mResampleFunc = &AudioResamplerDyn<TC, TI, TO>::resample<3, true, 16>;
+            break;
+        case 4:
+            mResampleFunc = &AudioResamplerDyn<TC, TI, TO>::resample<4, true, 16>;
+            break;
+        case 5:
+            mResampleFunc = &AudioResamplerDyn<TC, TI, TO>::resample<5, true, 16>;
+            break;
+        case 6:
+            mResampleFunc = &AudioResamplerDyn<TC, TI, TO>::resample<6, true, 16>;
+            break;
+        case 7:
+            mResampleFunc = &AudioResamplerDyn<TC, TI, TO>::resample<7, true, 16>;
+            break;
+        case 8:
+            mResampleFunc = &AudioResamplerDyn<TC, TI, TO>::resample<8, true, 16>;
+            break;
+        }
+    } else {
+        switch (mChannelCount) {
+        case 1:
+            mResampleFunc = &AudioResamplerDyn<TC, TI, TO>::resample<1, false, 16>;
+            break;
+        case 2:
+            mResampleFunc = &AudioResamplerDyn<TC, TI, TO>::resample<2, false, 16>;
+            break;
+        case 3:
+            mResampleFunc = &AudioResamplerDyn<TC, TI, TO>::resample<3, false, 16>;
+            break;
+        case 4:
+            mResampleFunc = &AudioResamplerDyn<TC, TI, TO>::resample<4, false, 16>;
+            break;
+        case 5:
+            mResampleFunc = &AudioResamplerDyn<TC, TI, TO>::resample<5, false, 16>;
+            break;
+        case 6:
+            mResampleFunc = &AudioResamplerDyn<TC, TI, TO>::resample<6, false, 16>;
+            break;
+        case 7:
+            mResampleFunc = &AudioResamplerDyn<TC, TI, TO>::resample<7, false, 16>;
+            break;
+        case 8:
+            mResampleFunc = &AudioResamplerDyn<TC, TI, TO>::resample<8, false, 16>;
+            break;
+        }
+    }
+#ifdef DEBUG_RESAMPLER
+    printf("channels:%d  %s  stride:%d  %s  coef:%d  shift:%d\n",
+            mChannelCount, locked ? "locked" : "interpolated",
+            stride, useS32 ? "S32" : "S16", 2*c.mHalfNumCoefs, c.mShift);
+#endif
+}
+
+template<typename TC, typename TI, typename TO>
+size_t AudioResamplerDyn<TC, TI, TO>::resample(int32_t* out, size_t outFrameCount,
+            AudioBufferProvider* provider)
+{
+    return (this->*mResampleFunc)(reinterpret_cast<TO*>(out), outFrameCount, provider);
+}
+
+template<typename TC, typename TI, typename TO>
+template<int CHANNELS, bool LOCKED, int STRIDE>
+size_t AudioResamplerDyn<TC, TI, TO>::resample(TO* out, size_t outFrameCount,
+        AudioBufferProvider* provider)
+{
+    // TODO Mono -> Mono is not supported. OUTPUT_CHANNELS reflects minimum of stereo out.
+    const int OUTPUT_CHANNELS = (CHANNELS < 2) ? 2 : CHANNELS;
+    const Constants& c(mConstants);
+    const TC* const coefs = mConstants.mFirCoefs;
+    TI* impulse = mInBuffer.getImpulse();
+    size_t inputIndex = 0;
+    uint32_t phaseFraction = mPhaseFraction;
+    const uint32_t phaseIncrement = mPhaseIncrement;
+    size_t outputIndex = 0;
+    size_t outputSampleCount = outFrameCount * OUTPUT_CHANNELS;
+    const uint32_t phaseWrapLimit = c.mL << c.mShift;
+    size_t inFrameCount = (phaseIncrement * (uint64_t)outFrameCount + phaseFraction)
+            / phaseWrapLimit;
+    // sanity check that inFrameCount is in signed 32 bit integer range.
+    ALOG_ASSERT(0 <= inFrameCount && inFrameCount < (1U << 31));
+
+    //ALOGV("inFrameCount:%d  outFrameCount:%d"
+    //        "  phaseIncrement:%u  phaseFraction:%u  phaseWrapLimit:%u",
+    //        inFrameCount, outFrameCount, phaseIncrement, phaseFraction, phaseWrapLimit);
+
+    // NOTE: be very careful when modifying the code here. register
+    // pressure is very high and a small change might cause the compiler
+    // to generate far less efficient code.
+    // Always sanity check the result with objdump or test-resample.
+
+    // the following logic is a bit convoluted to keep the main processing loop
+    // as tight as possible with register allocation.
+    while (outputIndex < outputSampleCount) {
+        //ALOGV("LOOP: inFrameCount:%d  outputIndex:%d  outFrameCount:%d"
+        //        "  phaseFraction:%u  phaseWrapLimit:%u",
+        //        inFrameCount, outputIndex, outFrameCount, phaseFraction, phaseWrapLimit);
+
+        // check inputIndex overflow
+        ALOG_ASSERT(inputIndex <= mBuffer.frameCount, "inputIndex%zu > frameCount%zu",
+                inputIndex, mBuffer.frameCount);
+        // Buffer is empty, fetch a new one if necessary (inFrameCount > 0).
+        // We may not fetch a new buffer if the existing data is sufficient.
+        while (mBuffer.frameCount == 0 && inFrameCount > 0) {
+            mBuffer.frameCount = inFrameCount;
+            provider->getNextBuffer(&mBuffer);
+            if (mBuffer.raw == NULL) {
+                // We are either at the end of playback or in an underrun situation.
+                // Reset buffer to prevent pop noise at the next buffer.
+                mInBuffer.reset();
+                goto resample_exit;
+            }
+            inFrameCount -= mBuffer.frameCount;
+            if (phaseFraction >= phaseWrapLimit) { // read in data
+                mInBuffer.template readAdvance<CHANNELS>(
+                        impulse, c.mHalfNumCoefs,
+                        reinterpret_cast<TI*>(mBuffer.raw), inputIndex);
+                inputIndex++;
+                phaseFraction -= phaseWrapLimit;
+                while (phaseFraction >= phaseWrapLimit) {
+                    if (inputIndex >= mBuffer.frameCount) {
+                        inputIndex = 0;
+                        provider->releaseBuffer(&mBuffer);
+                        break;
+                    }
+                    mInBuffer.template readAdvance<CHANNELS>(
+                            impulse, c.mHalfNumCoefs,
+                            reinterpret_cast<TI*>(mBuffer.raw), inputIndex);
+                    inputIndex++;
+                    phaseFraction -= phaseWrapLimit;
+                }
+            }
+        }
+        const TI* const in = reinterpret_cast<const TI*>(mBuffer.raw);
+        const size_t frameCount = mBuffer.frameCount;
+        const int coefShift = c.mShift;
+        const int halfNumCoefs = c.mHalfNumCoefs;
+        const TO* const volumeSimd = mVolumeSimd;
+
+        // main processing loop
+        while (CC_LIKELY(outputIndex < outputSampleCount)) {
+            // caution: fir() is inlined and may be large.
+            // output will be loaded with the appropriate values
+            //
+            // from the input samples in impulse[-halfNumCoefs+1]... impulse[halfNumCoefs]
+            // from the polyphase filter of (phaseFraction / phaseWrapLimit) in coefs.
+            //
+            //ALOGV("LOOP2: inFrameCount:%d  outputIndex:%d  outFrameCount:%d"
+            //        "  phaseFraction:%u  phaseWrapLimit:%u",
+            //        inFrameCount, outputIndex, outFrameCount, phaseFraction, phaseWrapLimit);
+            ALOG_ASSERT(phaseFraction < phaseWrapLimit);
+            fir<CHANNELS, LOCKED, STRIDE>(
+                    &out[outputIndex],
+                    phaseFraction, phaseWrapLimit,
+                    coefShift, halfNumCoefs, coefs,
+                    impulse, volumeSimd);
+
+            outputIndex += OUTPUT_CHANNELS;
+
+            phaseFraction += phaseIncrement;
+            while (phaseFraction >= phaseWrapLimit) {
+                if (inputIndex >= frameCount) {
+                    goto done;  // need a new buffer
+                }
+                mInBuffer.template readAdvance<CHANNELS>(impulse, halfNumCoefs, in, inputIndex);
+                inputIndex++;
+                phaseFraction -= phaseWrapLimit;
+            }
+        }
+done:
+        // We arrive here when we're finished or when the input buffer runs out.
+        // Regardless we need to release the input buffer if we've acquired it.
+        if (inputIndex > 0) {  // we've acquired a buffer (alternatively could check frameCount)
+            ALOG_ASSERT(inputIndex == frameCount, "inputIndex(%zu) != frameCount(%zu)",
+                    inputIndex, frameCount);  // must have been fully read.
+            inputIndex = 0;
+            provider->releaseBuffer(&mBuffer);
+            ALOG_ASSERT(mBuffer.frameCount == 0);
+        }
+    }
+
+resample_exit:
+    // inputIndex must be zero in all three cases:
+    // (1) the buffer never was been acquired; (2) the buffer was
+    // released at "done:"; or (3) getNextBuffer() failed.
+    ALOG_ASSERT(inputIndex == 0, "Releasing: inputindex:%zu frameCount:%zu  phaseFraction:%u",
+            inputIndex, mBuffer.frameCount, phaseFraction);
+    ALOG_ASSERT(mBuffer.frameCount == 0); // there must be no frames in the buffer
+    mInBuffer.setImpulse(impulse);
+    mPhaseFraction = phaseFraction;
+    return outputIndex / OUTPUT_CHANNELS;
+}
+
+/* instantiate templates used by AudioResampler::create */
+template class AudioResamplerDyn<float, float, float>;
+template class AudioResamplerDyn<int16_t, int16_t, int32_t>;
+template class AudioResamplerDyn<int32_t, int16_t, int32_t>;
+
+// ----------------------------------------------------------------------------
+} // namespace android
diff --git a/media/libaudioprocessing/AudioResamplerDyn.h b/media/libaudioprocessing/AudioResamplerDyn.h
new file mode 100644
index 0000000..1840fc7
--- /dev/null
+++ b/media/libaudioprocessing/AudioResamplerDyn.h
@@ -0,0 +1,134 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_AUDIO_RESAMPLER_DYN_H
+#define ANDROID_AUDIO_RESAMPLER_DYN_H
+
+#include <stdint.h>
+#include <sys/types.h>
+#include <android/log.h>
+
+#include <media/AudioResampler.h>
+
+namespace android {
+
+/* AudioResamplerDyn
+ *
+ * This class template is used for floating point and integer resamplers.
+ *
+ * Type variables:
+ * TC = filter coefficient type (one of int16_t, int32_t, or float)
+ * TI = input data type (one of int16_t or float)
+ * TO = output data type (one of int32_t or float)
+ *
+ * For integer input data types TI, the coefficient type TC is either int16_t or int32_t.
+ * For float input data types TI, the coefficient type TC is float.
+ */
+
+template<typename TC, typename TI, typename TO>
+class AudioResamplerDyn: public AudioResampler {
+public:
+    AudioResamplerDyn(int inChannelCount,
+            int32_t sampleRate, src_quality quality);
+
+    virtual ~AudioResamplerDyn();
+
+    virtual void init();
+
+    virtual void setSampleRate(int32_t inSampleRate);
+
+    virtual void setVolume(float left, float right);
+
+    virtual size_t resample(int32_t* out, size_t outFrameCount,
+            AudioBufferProvider* provider);
+
+private:
+
+    class Constants { // stores the filter constants.
+    public:
+        Constants() :
+            mL(0), mShift(0), mHalfNumCoefs(0), mFirCoefs(NULL)
+        {}
+        void set(int L, int halfNumCoefs,
+                int inSampleRate, int outSampleRate);
+
+                 int mL;            // interpolation phases in the filter.
+                 int mShift;        // right shift to get polyphase index
+        unsigned int mHalfNumCoefs; // filter half #coefs
+           const TC* mFirCoefs;     // polyphase filter bank
+    };
+
+    class InBuffer { // buffer management for input type TI
+    public:
+        InBuffer();
+        ~InBuffer();
+        void init();
+
+        void resize(int CHANNELS, int halfNumCoefs);
+
+        // used for direct management of the mImpulse pointer
+        inline TI* getImpulse() {
+            return mImpulse;
+        }
+
+        inline void setImpulse(TI *impulse) {
+            mImpulse = impulse;
+        }
+
+        template<int CHANNELS>
+        inline void readAgain(TI*& impulse, const int halfNumCoefs,
+                const TI* const in, const size_t inputIndex);
+
+        template<int CHANNELS>
+        inline void readAdvance(TI*& impulse, const int halfNumCoefs,
+                const TI* const in, const size_t inputIndex);
+
+        void reset();
+
+    private:
+        // tuning parameter guidelines: 2 <= multiple <= 8
+        static const int kStateSizeMultipleOfFilterLength = 4;
+
+        // in general, mRingFull = mState + mStateSize - halfNumCoefs*CHANNELS.
+           TI* mState;      // base pointer for the input buffer storage
+           TI* mImpulse;    // current location of the impulse response (centered)
+           TI* mRingFull;   // mState <= mImpulse < mRingFull
+        size_t mStateCount; // size of state in units of TI.
+    };
+
+    void createKaiserFir(Constants &c, double stopBandAtten,
+            int inSampleRate, int outSampleRate, double tbwCheat);
+
+    template<int CHANNELS, bool LOCKED, int STRIDE>
+    size_t resample(TO* out, size_t outFrameCount, AudioBufferProvider* provider);
+
+    // define a pointer to member function type for resample
+    typedef size_t (AudioResamplerDyn<TC, TI, TO>::*resample_ABP_t)(TO* out,
+            size_t outFrameCount, AudioBufferProvider* provider);
+
+    // data - the contiguous storage and layout of these is important.
+           InBuffer mInBuffer;
+          Constants mConstants;        // current set of coefficient parameters
+    TO __attribute__ ((aligned (8))) mVolumeSimd[2]; // must be aligned or NEON may crash
+     resample_ABP_t mResampleFunc;     // called function for resampling
+            int32_t mFilterSampleRate; // designed filter sample rate.
+        src_quality mFilterQuality;    // designed filter quality.
+              void* mCoefBuffer;       // if a filter is created, this is not null
+};
+
+} // namespace android
+
+#endif /*ANDROID_AUDIO_RESAMPLER_DYN_H*/
diff --git a/services/audioflinger/AudioResamplerFirGen.h b/media/libaudioprocessing/AudioResamplerFirGen.h
similarity index 100%
rename from services/audioflinger/AudioResamplerFirGen.h
rename to media/libaudioprocessing/AudioResamplerFirGen.h
diff --git a/media/libaudioprocessing/AudioResamplerFirOps.h b/media/libaudioprocessing/AudioResamplerFirOps.h
new file mode 100644
index 0000000..2e4cee3
--- /dev/null
+++ b/media/libaudioprocessing/AudioResamplerFirOps.h
@@ -0,0 +1,174 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_AUDIO_RESAMPLER_FIR_OPS_H
+#define ANDROID_AUDIO_RESAMPLER_FIR_OPS_H
+
+namespace android {
+
+#if defined(__arm__) && !defined(__thumb__)
+#define USE_INLINE_ASSEMBLY (true)
+#else
+#define USE_INLINE_ASSEMBLY (false)
+#endif
+
+#if defined(__aarch64__) || defined(__ARM_NEON__)
+#ifndef USE_NEON
+#define USE_NEON (true)
+#endif
+#else
+#define USE_NEON (false)
+#endif
+#if USE_NEON
+#include <arm_neon.h>
+#endif
+
+#if defined(__SSSE3__)  // Should be supported in x86 ABI for both 32 & 64-bit.
+#define USE_SSE (true)
+#include <tmmintrin.h>
+#else
+#define USE_SSE (false)
+#endif
+
+template<typename T, typename U>
+struct is_same
+{
+    static const bool value = false;
+};
+
+template<typename T>
+struct is_same<T, T>  // partial specialization
+{
+    static const bool value = true;
+};
+
+static inline
+int32_t mulRL(int left, int32_t in, uint32_t vRL)
+{
+#if USE_INLINE_ASSEMBLY
+    int32_t out;
+    if (left) {
+        asm( "smultb %[out], %[in], %[vRL] \n"
+             : [out]"=r"(out)
+             : [in]"%r"(in), [vRL]"r"(vRL)
+             : );
+    } else {
+        asm( "smultt %[out], %[in], %[vRL] \n"
+             : [out]"=r"(out)
+             : [in]"%r"(in), [vRL]"r"(vRL)
+             : );
+    }
+    return out;
+#else
+    int16_t v = left ? static_cast<int16_t>(vRL) : static_cast<int16_t>(vRL>>16);
+    return static_cast<int32_t>((static_cast<int64_t>(in) * v) >> 16);
+#endif
+}
+
+static inline
+int32_t mulAdd(int16_t in, int16_t v, int32_t a)
+{
+#if USE_INLINE_ASSEMBLY
+    int32_t out;
+    asm( "smlabb %[out], %[v], %[in], %[a] \n"
+         : [out]"=r"(out)
+         : [in]"%r"(in), [v]"r"(v), [a]"r"(a)
+         : );
+    return out;
+#else
+    return a + v * in;
+#endif
+}
+
+static inline
+int32_t mulAdd(int16_t in, int32_t v, int32_t a)
+{
+#if USE_INLINE_ASSEMBLY
+    int32_t out;
+    asm( "smlawb %[out], %[v], %[in], %[a] \n"
+         : [out]"=r"(out)
+         : [in]"%r"(in), [v]"r"(v), [a]"r"(a)
+         : );
+    return out;
+#else
+    return a + static_cast<int32_t>((static_cast<int64_t>(v) * in) >> 16);
+#endif
+}
+
+static inline
+int32_t mulAdd(int32_t in, int32_t v, int32_t a)
+{
+#if USE_INLINE_ASSEMBLY
+    int32_t out;
+    asm( "smmla %[out], %[v], %[in], %[a] \n"
+         : [out]"=r"(out)
+         : [in]"%r"(in), [v]"r"(v), [a]"r"(a)
+         : );
+    return out;
+#else
+    return a + static_cast<int32_t>((static_cast<int64_t>(v) * in) >> 32);
+#endif
+}
+
+static inline
+int32_t mulAddRL(int left, uint32_t inRL, int16_t v, int32_t a)
+{
+#if 0 // USE_INLINE_ASSEMBLY Seems to fail with Clang b/34110890
+    int32_t out;
+    if (left) {
+        asm( "smlabb %[out], %[v], %[inRL], %[a] \n"
+             : [out]"=r"(out)
+             : [inRL]"%r"(inRL), [v]"r"(v), [a]"r"(a)
+             : );
+    } else {
+        asm( "smlabt %[out], %[v], %[inRL], %[a] \n"
+             : [out]"=r"(out)
+             : [inRL]"%r"(inRL), [v]"r"(v), [a]"r"(a)
+             : );
+    }
+    return out;
+#else
+    int16_t s = left ? static_cast<int16_t>(inRL) : static_cast<int16_t>(inRL>>16);
+    return a + v * s;
+#endif
+}
+
+static inline
+int32_t mulAddRL(int left, uint32_t inRL, int32_t v, int32_t a)
+{
+#if 0 // USE_INLINE_ASSEMBLY Seems to fail with Clang b/34110890
+    int32_t out;
+    if (left) {
+        asm( "smlawb %[out], %[v], %[inRL], %[a] \n"
+             : [out]"=r"(out)
+             : [inRL]"%r"(inRL), [v]"r"(v), [a]"r"(a)
+             : );
+    } else {
+        asm( "smlawt %[out], %[v], %[inRL], %[a] \n"
+             : [out]"=r"(out)
+             : [inRL]"%r"(inRL), [v]"r"(v), [a]"r"(a)
+             : );
+    }
+    return out;
+#else
+    int16_t s = left ? static_cast<int16_t>(inRL) : static_cast<int16_t>(inRL>>16);
+    return a + static_cast<int32_t>((static_cast<int64_t>(v) * s) >> 16);
+#endif
+}
+
+} // namespace android
+
+#endif /*ANDROID_AUDIO_RESAMPLER_FIR_OPS_H*/
diff --git a/services/audioflinger/AudioResamplerFirProcess.h b/media/libaudioprocessing/AudioResamplerFirProcess.h
similarity index 100%
rename from services/audioflinger/AudioResamplerFirProcess.h
rename to media/libaudioprocessing/AudioResamplerFirProcess.h
diff --git a/media/libaudioprocessing/AudioResamplerFirProcessNeon.h b/media/libaudioprocessing/AudioResamplerFirProcessNeon.h
new file mode 100644
index 0000000..1ce76a8
--- /dev/null
+++ b/media/libaudioprocessing/AudioResamplerFirProcessNeon.h
@@ -0,0 +1,1214 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_AUDIO_RESAMPLER_FIR_PROCESS_NEON_H
+#define ANDROID_AUDIO_RESAMPLER_FIR_PROCESS_NEON_H
+
+namespace android {
+
+// depends on AudioResamplerFirOps.h, AudioResamplerFirProcess.h
+
+#if USE_NEON
+
+// use intrinsics if inline arm32 assembly is not possible
+#if !USE_INLINE_ASSEMBLY
+#define USE_INTRINSIC
+#endif
+
+// following intrinsics available only on ARM 64 bit ACLE
+#ifndef __aarch64__
+#undef vld1q_f32_x2
+#undef vld1q_s32_x2
+#endif
+
+#define TO_STRING2(x) #x
+#define TO_STRING(x) TO_STRING2(x)
+// uncomment to print GCC version, may be relevant for intrinsic optimizations
+/* #pragma message ("GCC version: " TO_STRING(__GNUC__) \
+        "." TO_STRING(__GNUC_MINOR__) \
+        "." TO_STRING(__GNUC_PATCHLEVEL__)) */
+
+//
+// NEON specializations are enabled for Process() and ProcessL() in AudioResamplerFirProcess.h
+//
+// Two variants are presented here:
+// ARM NEON inline assembly which appears up to 10-15% faster than intrinsics (gcc 4.9) for arm32.
+// ARM NEON intrinsics which can also be used by arm64 and x86/64 with NEON header.
+//
+
+// Macros to save a mono/stereo accumulator sample in q0 (and q4) as stereo out.
+// These are only used for inline assembly.
+#define ASSEMBLY_ACCUMULATE_MONO \
+        "vld1.s32       {d2}, [%[vLR]:64]        \n"/* (1) load volumes */\
+        "vld1.s32       {d3}, %[out]             \n"/* (2) unaligned load the output */\
+        "vpadd.s32      d0, d0, d1               \n"/* (1) add all 4 partial sums */\
+        "vpadd.s32      d0, d0, d0               \n"/* (1+4d) and replicate L/R */\
+        "vqrdmulh.s32   d0, d0, d2               \n"/* (2+3d) apply volume */\
+        "vqadd.s32      d3, d3, d0               \n"/* (1+4d) accumulate result (saturating) */\
+        "vst1.s32       {d3}, %[out]             \n"/* (2+2d) store result */
+
+#define ASSEMBLY_ACCUMULATE_STEREO \
+        "vld1.s32       {d2}, [%[vLR]:64]        \n"/* (1) load volumes*/\
+        "vld1.s32       {d3}, %[out]             \n"/* (2) unaligned load the output*/\
+        "vpadd.s32      d0, d0, d1               \n"/* (1) add all 4 partial sums from q0*/\
+        "vpadd.s32      d8, d8, d9               \n"/* (1) add all 4 partial sums from q4*/\
+        "vpadd.s32      d0, d0, d8               \n"/* (1+4d) combine into L/R*/\
+        "vqrdmulh.s32   d0, d0, d2               \n"/* (2+3d) apply volume*/\
+        "vqadd.s32      d3, d3, d0               \n"/* (1+4d) accumulate result (saturating)*/\
+        "vst1.s32       {d3}, %[out]             \n"/* (2+2d)store result*/
+
+template <int CHANNELS, int STRIDE, bool FIXED>
+static inline void ProcessNeonIntrinsic(int32_t* out,
+        int count,
+        const int16_t* coefsP,
+        const int16_t* coefsN,
+        const int16_t* sP,
+        const int16_t* sN,
+        const int32_t* volumeLR,
+        uint32_t lerpP,
+        const int16_t* coefsP1,
+        const int16_t* coefsN1)
+{
+    ALOG_ASSERT(count > 0 && (count & 7) == 0); // multiple of 8
+    COMPILE_TIME_ASSERT_FUNCTION_SCOPE(CHANNELS == 1 || CHANNELS == 2);
+
+    sP -= CHANNELS*((STRIDE>>1)-1);
+    coefsP = (const int16_t*)__builtin_assume_aligned(coefsP, 16);
+    coefsN = (const int16_t*)__builtin_assume_aligned(coefsN, 16);
+
+    int16x4_t interp;
+    if (!FIXED) {
+        interp = vdup_n_s16(lerpP);
+        //interp = (int16x4_t)vset_lane_s32 ((int32x2_t)lerpP, interp, 0);
+        coefsP1 = (const int16_t*)__builtin_assume_aligned(coefsP1, 16);
+        coefsN1 = (const int16_t*)__builtin_assume_aligned(coefsN1, 16);
+    }
+    int32x4_t accum, accum2;
+    // warning uninitialized if we use veorq_s32
+    // (alternative to below) accum = veorq_s32(accum, accum);
+    accum = vdupq_n_s32(0);
+    if (CHANNELS == 2) {
+        // (alternative to below) accum2 = veorq_s32(accum2, accum2);
+        accum2 = vdupq_n_s32(0);
+    }
+    do {
+        int16x8_t posCoef = vld1q_s16(coefsP);
+        coefsP += 8;
+        int16x8_t negCoef = vld1q_s16(coefsN);
+        coefsN += 8;
+        if (!FIXED) { // interpolate
+            int16x8_t posCoef1 = vld1q_s16(coefsP1);
+            coefsP1 += 8;
+            int16x8_t negCoef1 = vld1q_s16(coefsN1);
+            coefsN1 += 8;
+
+            posCoef1 = vsubq_s16(posCoef1, posCoef);
+            negCoef = vsubq_s16(negCoef, negCoef1);
+
+            posCoef1 = vqrdmulhq_lane_s16(posCoef1, interp, 0);
+            negCoef = vqrdmulhq_lane_s16(negCoef, interp, 0);
+
+            posCoef = vaddq_s16(posCoef, posCoef1);
+            negCoef = vaddq_s16(negCoef, negCoef1);
+        }
+        switch (CHANNELS) {
+        case 1: {
+            int16x8_t posSamp = vld1q_s16(sP);
+            int16x8_t negSamp = vld1q_s16(sN);
+            sN += 8;
+            posSamp = vrev64q_s16(posSamp);
+
+            // dot product
+            accum = vmlal_s16(accum, vget_low_s16(posSamp), vget_high_s16(posCoef)); // reversed
+            accum = vmlal_s16(accum, vget_high_s16(posSamp), vget_low_s16(posCoef)); // reversed
+            accum = vmlal_s16(accum, vget_low_s16(negSamp), vget_low_s16(negCoef));
+            accum = vmlal_s16(accum, vget_high_s16(negSamp), vget_high_s16(negCoef));
+            sP -= 8;
+        } break;
+        case 2: {
+            int16x8x2_t posSamp = vld2q_s16(sP);
+            int16x8x2_t negSamp = vld2q_s16(sN);
+            sN += 16;
+            posSamp.val[0] = vrev64q_s16(posSamp.val[0]);
+            posSamp.val[1] = vrev64q_s16(posSamp.val[1]);
+
+            // dot product
+            accum = vmlal_s16(accum, vget_low_s16(posSamp.val[0]), vget_high_s16(posCoef)); // r
+            accum = vmlal_s16(accum, vget_high_s16(posSamp.val[0]), vget_low_s16(posCoef)); // r
+            accum2 = vmlal_s16(accum2, vget_low_s16(posSamp.val[1]), vget_high_s16(posCoef)); // r
+            accum2 = vmlal_s16(accum2, vget_high_s16(posSamp.val[1]), vget_low_s16(posCoef)); // r
+            accum = vmlal_s16(accum, vget_low_s16(negSamp.val[0]), vget_low_s16(negCoef));
+            accum = vmlal_s16(accum, vget_high_s16(negSamp.val[0]), vget_high_s16(negCoef));
+            accum2 = vmlal_s16(accum2, vget_low_s16(negSamp.val[1]), vget_low_s16(negCoef));
+            accum2 = vmlal_s16(accum2, vget_high_s16(negSamp.val[1]), vget_high_s16(negCoef));
+            sP -= 16;
+        } break;
+        }
+    } while (count -= 8);
+
+    // multiply by volume and save
+    volumeLR = (const int32_t*)__builtin_assume_aligned(volumeLR, 8);
+    int32x2_t vLR = vld1_s32(volumeLR);
+    int32x2_t outSamp = vld1_s32(out);
+    // combine and funnel down accumulator
+    int32x2_t outAccum = vpadd_s32(vget_low_s32(accum), vget_high_s32(accum));
+    if (CHANNELS == 1) {
+        // duplicate accum to both L and R
+        outAccum = vpadd_s32(outAccum, outAccum);
+    } else if (CHANNELS == 2) {
+        // accum2 contains R, fold in
+        int32x2_t outAccum2 = vpadd_s32(vget_low_s32(accum2), vget_high_s32(accum2));
+        outAccum = vpadd_s32(outAccum, outAccum2);
+    }
+    outAccum = vqrdmulh_s32(outAccum, vLR);
+    outSamp = vqadd_s32(outSamp, outAccum);
+    vst1_s32(out, outSamp);
+}
+
+template <int CHANNELS, int STRIDE, bool FIXED>
+static inline void ProcessNeonIntrinsic(int32_t* out,
+        int count,
+        const int32_t* coefsP,
+        const int32_t* coefsN,
+        const int16_t* sP,
+        const int16_t* sN,
+        const int32_t* volumeLR,
+        uint32_t lerpP,
+        const int32_t* coefsP1,
+        const int32_t* coefsN1)
+{
+    ALOG_ASSERT(count > 0 && (count & 7) == 0); // multiple of 8
+    COMPILE_TIME_ASSERT_FUNCTION_SCOPE(CHANNELS == 1 || CHANNELS == 2);
+
+    sP -= CHANNELS*((STRIDE>>1)-1);
+    coefsP = (const int32_t*)__builtin_assume_aligned(coefsP, 16);
+    coefsN = (const int32_t*)__builtin_assume_aligned(coefsN, 16);
+
+    int32x2_t interp;
+    if (!FIXED) {
+        interp = vdup_n_s32(lerpP);
+        coefsP1 = (const int32_t*)__builtin_assume_aligned(coefsP1, 16);
+        coefsN1 = (const int32_t*)__builtin_assume_aligned(coefsN1, 16);
+    }
+    int32x4_t accum, accum2;
+    // warning uninitialized if we use veorq_s32
+    // (alternative to below) accum = veorq_s32(accum, accum);
+    accum = vdupq_n_s32(0);
+    if (CHANNELS == 2) {
+        // (alternative to below) accum2 = veorq_s32(accum2, accum2);
+        accum2 = vdupq_n_s32(0);
+    }
+    do {
+#ifdef vld1q_s32_x2
+        int32x4x2_t posCoef = vld1q_s32_x2(coefsP);
+        coefsP += 8;
+        int32x4x2_t negCoef = vld1q_s32_x2(coefsN);
+        coefsN += 8;
+#else
+        int32x4x2_t posCoef;
+        posCoef.val[0] = vld1q_s32(coefsP);
+        coefsP += 4;
+        posCoef.val[1] = vld1q_s32(coefsP);
+        coefsP += 4;
+        int32x4x2_t negCoef;
+        negCoef.val[0] = vld1q_s32(coefsN);
+        coefsN += 4;
+        negCoef.val[1] = vld1q_s32(coefsN);
+        coefsN += 4;
+#endif
+        if (!FIXED) { // interpolate
+#ifdef vld1q_s32_x2
+            int32x4x2_t posCoef1 = vld1q_s32_x2(coefsP1);
+            coefsP1 += 8;
+            int32x4x2_t negCoef1 = vld1q_s32_x2(coefsN1);
+            coefsN1 += 8;
+#else
+            int32x4x2_t posCoef1;
+            posCoef1.val[0] = vld1q_s32(coefsP1);
+            coefsP1 += 4;
+            posCoef1.val[1] = vld1q_s32(coefsP1);
+            coefsP1 += 4;
+            int32x4x2_t negCoef1;
+            negCoef1.val[0] = vld1q_s32(coefsN1);
+            coefsN1 += 4;
+            negCoef1.val[1] = vld1q_s32(coefsN1);
+            coefsN1 += 4;
+#endif
+
+            posCoef1.val[0] = vsubq_s32(posCoef1.val[0], posCoef.val[0]);
+            posCoef1.val[1] = vsubq_s32(posCoef1.val[1], posCoef.val[1]);
+            negCoef.val[0] = vsubq_s32(negCoef.val[0], negCoef1.val[0]);
+            negCoef.val[1] = vsubq_s32(negCoef.val[1], negCoef1.val[1]);
+
+            posCoef1.val[0] = vqrdmulhq_lane_s32(posCoef1.val[0], interp, 0);
+            posCoef1.val[1] = vqrdmulhq_lane_s32(posCoef1.val[1], interp, 0);
+            negCoef.val[0] = vqrdmulhq_lane_s32(negCoef.val[0], interp, 0);
+            negCoef.val[1] = vqrdmulhq_lane_s32(negCoef.val[1], interp, 0);
+
+            posCoef.val[0] = vaddq_s32(posCoef.val[0], posCoef1.val[0]);
+            posCoef.val[1] = vaddq_s32(posCoef.val[1], posCoef1.val[1]);
+            negCoef.val[0] = vaddq_s32(negCoef.val[0], negCoef1.val[0]);
+            negCoef.val[1] = vaddq_s32(negCoef.val[1], negCoef1.val[1]);
+        }
+        switch (CHANNELS) {
+        case 1: {
+            int16x8_t posSamp = vld1q_s16(sP);
+            int16x8_t negSamp = vld1q_s16(sN);
+            sN += 8;
+            posSamp = vrev64q_s16(posSamp);
+
+            int32x4_t posSamp0 = vshll_n_s16(vget_low_s16(posSamp), 15);
+            int32x4_t posSamp1 = vshll_n_s16(vget_high_s16(posSamp), 15);
+            int32x4_t negSamp0 = vshll_n_s16(vget_low_s16(negSamp), 15);
+            int32x4_t negSamp1 = vshll_n_s16(vget_high_s16(negSamp), 15);
+
+            // dot product
+            posSamp0 = vqrdmulhq_s32(posSamp0, posCoef.val[1]); // reversed
+            posSamp1 = vqrdmulhq_s32(posSamp1, posCoef.val[0]); // reversed
+            negSamp0 = vqrdmulhq_s32(negSamp0, negCoef.val[0]);
+            negSamp1 = vqrdmulhq_s32(negSamp1, negCoef.val[1]);
+
+            accum = vaddq_s32(accum, posSamp0);
+            negSamp0 = vaddq_s32(negSamp0, negSamp1);
+            accum = vaddq_s32(accum, posSamp1);
+            accum = vaddq_s32(accum, negSamp0);
+
+            sP -= 8;
+        } break;
+        case 2: {
+            int16x8x2_t posSamp = vld2q_s16(sP);
+            int16x8x2_t negSamp = vld2q_s16(sN);
+            sN += 16;
+            posSamp.val[0] = vrev64q_s16(posSamp.val[0]);
+            posSamp.val[1] = vrev64q_s16(posSamp.val[1]);
+
+            // left
+            int32x4_t posSamp0 = vshll_n_s16(vget_low_s16(posSamp.val[0]), 15);
+            int32x4_t posSamp1 = vshll_n_s16(vget_high_s16(posSamp.val[0]), 15);
+            int32x4_t negSamp0 = vshll_n_s16(vget_low_s16(negSamp.val[0]), 15);
+            int32x4_t negSamp1 = vshll_n_s16(vget_high_s16(negSamp.val[0]), 15);
+
+            // dot product
+            posSamp0 = vqrdmulhq_s32(posSamp0, posCoef.val[1]); // reversed
+            posSamp1 = vqrdmulhq_s32(posSamp1, posCoef.val[0]); // reversed
+            negSamp0 = vqrdmulhq_s32(negSamp0, negCoef.val[0]);
+            negSamp1 = vqrdmulhq_s32(negSamp1, negCoef.val[1]);
+
+            accum = vaddq_s32(accum, posSamp0);
+            negSamp0 = vaddq_s32(negSamp0, negSamp1);
+            accum = vaddq_s32(accum, posSamp1);
+            accum = vaddq_s32(accum, negSamp0);
+
+            // right
+            posSamp0 = vshll_n_s16(vget_low_s16(posSamp.val[1]), 15);
+            posSamp1 = vshll_n_s16(vget_high_s16(posSamp.val[1]), 15);
+            negSamp0 = vshll_n_s16(vget_low_s16(negSamp.val[1]), 15);
+            negSamp1 = vshll_n_s16(vget_high_s16(negSamp.val[1]), 15);
+
+            // dot product
+            posSamp0 = vqrdmulhq_s32(posSamp0, posCoef.val[1]); // reversed
+            posSamp1 = vqrdmulhq_s32(posSamp1, posCoef.val[0]); // reversed
+            negSamp0 = vqrdmulhq_s32(negSamp0, negCoef.val[0]);
+            negSamp1 = vqrdmulhq_s32(negSamp1, negCoef.val[1]);
+
+            accum2 = vaddq_s32(accum2, posSamp0);
+            negSamp0 = vaddq_s32(negSamp0, negSamp1);
+            accum2 = vaddq_s32(accum2, posSamp1);
+            accum2 = vaddq_s32(accum2, negSamp0);
+
+            sP -= 16;
+        } break;
+        }
+    } while (count -= 8);
+
+    // multiply by volume and save
+    volumeLR = (const int32_t*)__builtin_assume_aligned(volumeLR, 8);
+    int32x2_t vLR = vld1_s32(volumeLR);
+    int32x2_t outSamp = vld1_s32(out);
+    // combine and funnel down accumulator
+    int32x2_t outAccum = vpadd_s32(vget_low_s32(accum), vget_high_s32(accum));
+    if (CHANNELS == 1) {
+        // duplicate accum to both L and R
+        outAccum = vpadd_s32(outAccum, outAccum);
+    } else if (CHANNELS == 2) {
+        // accum2 contains R, fold in
+        int32x2_t outAccum2 = vpadd_s32(vget_low_s32(accum2), vget_high_s32(accum2));
+        outAccum = vpadd_s32(outAccum, outAccum2);
+    }
+    outAccum = vqrdmulh_s32(outAccum, vLR);
+    outSamp = vqadd_s32(outSamp, outAccum);
+    vst1_s32(out, outSamp);
+}
+
+template <int CHANNELS, int STRIDE, bool FIXED>
+static inline void ProcessNeonIntrinsic(float* out,
+        int count,
+        const float* coefsP,
+        const float* coefsN,
+        const float* sP,
+        const float* sN,
+        const float* volumeLR,
+        float lerpP,
+        const float* coefsP1,
+        const float* coefsN1)
+{
+    ALOG_ASSERT(count > 0 && (count & 7) == 0); // multiple of 8
+    COMPILE_TIME_ASSERT_FUNCTION_SCOPE(CHANNELS == 1 || CHANNELS == 2);
+
+    sP -= CHANNELS*((STRIDE>>1)-1);
+    coefsP = (const float*)__builtin_assume_aligned(coefsP, 16);
+    coefsN = (const float*)__builtin_assume_aligned(coefsN, 16);
+
+    float32x2_t interp;
+    if (!FIXED) {
+        interp = vdup_n_f32(lerpP);
+        coefsP1 = (const float*)__builtin_assume_aligned(coefsP1, 16);
+        coefsN1 = (const float*)__builtin_assume_aligned(coefsN1, 16);
+    }
+    float32x4_t accum, accum2;
+    // warning uninitialized if we use veorq_s32
+    // (alternative to below) accum = veorq_s32(accum, accum);
+    accum = vdupq_n_f32(0);
+    if (CHANNELS == 2) {
+        // (alternative to below) accum2 = veorq_s32(accum2, accum2);
+        accum2 = vdupq_n_f32(0);
+    }
+    do {
+#ifdef vld1q_f32_x2
+        float32x4x2_t posCoef = vld1q_f32_x2(coefsP);
+        coefsP += 8;
+        float32x4x2_t negCoef = vld1q_f32_x2(coefsN);
+        coefsN += 8;
+#else
+        float32x4x2_t posCoef;
+        posCoef.val[0] = vld1q_f32(coefsP);
+        coefsP += 4;
+        posCoef.val[1] = vld1q_f32(coefsP);
+        coefsP += 4;
+        float32x4x2_t negCoef;
+        negCoef.val[0] = vld1q_f32(coefsN);
+        coefsN += 4;
+        negCoef.val[1] = vld1q_f32(coefsN);
+        coefsN += 4;
+#endif
+        if (!FIXED) { // interpolate
+#ifdef vld1q_f32_x2
+            float32x4x2_t posCoef1 = vld1q_f32_x2(coefsP1);
+            coefsP1 += 8;
+            float32x4x2_t negCoef1 = vld1q_f32_x2(coefsN1);
+            coefsN1 += 8;
+#else
+            float32x4x2_t posCoef1;
+            posCoef1.val[0] = vld1q_f32(coefsP1);
+            coefsP1 += 4;
+            posCoef1.val[1] = vld1q_f32(coefsP1);
+            coefsP1 += 4;
+            float32x4x2_t negCoef1;
+            negCoef1.val[0] = vld1q_f32(coefsN1);
+            coefsN1 += 4;
+            negCoef1.val[1] = vld1q_f32(coefsN1);
+            coefsN1 += 4;
+#endif
+            posCoef1.val[0] = vsubq_f32(posCoef1.val[0], posCoef.val[0]);
+            posCoef1.val[1] = vsubq_f32(posCoef1.val[1], posCoef.val[1]);
+            negCoef.val[0] = vsubq_f32(negCoef.val[0], negCoef1.val[0]);
+            negCoef.val[1] = vsubq_f32(negCoef.val[1], negCoef1.val[1]);
+
+            posCoef.val[0] = vmlaq_lane_f32(posCoef.val[0], posCoef1.val[0], interp, 0);
+            posCoef.val[1] = vmlaq_lane_f32(posCoef.val[1], posCoef1.val[1], interp, 0);
+            negCoef.val[0] = vmlaq_lane_f32(negCoef1.val[0], negCoef.val[0], interp, 0); // rev
+            negCoef.val[1] = vmlaq_lane_f32(negCoef1.val[1], negCoef.val[1], interp, 0); // rev
+        }
+        switch (CHANNELS) {
+        case 1: {
+#ifdef vld1q_f32_x2
+            float32x4x2_t posSamp = vld1q_f32_x2(sP);
+            float32x4x2_t negSamp = vld1q_f32_x2(sN);
+            sN += 8;
+            sP -= 8;
+#else
+            float32x4x2_t posSamp;
+            posSamp.val[0] = vld1q_f32(sP);
+            sP += 4;
+            posSamp.val[1] = vld1q_f32(sP);
+            sP -= 12;
+            float32x4x2_t negSamp;
+            negSamp.val[0] = vld1q_f32(sN);
+            sN += 4;
+            negSamp.val[1] = vld1q_f32(sN);
+            sN += 4;
+#endif
+            // effectively we want a vrev128q_f32()
+            posSamp.val[0] = vrev64q_f32(posSamp.val[0]);
+            posSamp.val[1] = vrev64q_f32(posSamp.val[1]);
+            posSamp.val[0] = vcombine_f32(
+                    vget_high_f32(posSamp.val[0]), vget_low_f32(posSamp.val[0]));
+            posSamp.val[1] = vcombine_f32(
+                    vget_high_f32(posSamp.val[1]), vget_low_f32(posSamp.val[1]));
+
+            accum = vmlaq_f32(accum, posSamp.val[0], posCoef.val[1]);
+            accum = vmlaq_f32(accum, posSamp.val[1], posCoef.val[0]);
+            accum = vmlaq_f32(accum, negSamp.val[0], negCoef.val[0]);
+            accum = vmlaq_f32(accum, negSamp.val[1], negCoef.val[1]);
+        } break;
+        case 2: {
+            float32x4x2_t posSamp0 = vld2q_f32(sP);
+            sP += 8;
+            float32x4x2_t negSamp0 = vld2q_f32(sN);
+            sN += 8;
+            posSamp0.val[0] = vrev64q_f32(posSamp0.val[0]);
+            posSamp0.val[1] = vrev64q_f32(posSamp0.val[1]);
+            posSamp0.val[0] = vcombine_f32(
+                    vget_high_f32(posSamp0.val[0]), vget_low_f32(posSamp0.val[0]));
+            posSamp0.val[1] = vcombine_f32(
+                    vget_high_f32(posSamp0.val[1]), vget_low_f32(posSamp0.val[1]));
+
+            float32x4x2_t posSamp1 = vld2q_f32(sP);
+            sP -= 24;
+            float32x4x2_t negSamp1 = vld2q_f32(sN);
+            sN += 8;
+            posSamp1.val[0] = vrev64q_f32(posSamp1.val[0]);
+            posSamp1.val[1] = vrev64q_f32(posSamp1.val[1]);
+            posSamp1.val[0] = vcombine_f32(
+                    vget_high_f32(posSamp1.val[0]), vget_low_f32(posSamp1.val[0]));
+            posSamp1.val[1] = vcombine_f32(
+                    vget_high_f32(posSamp1.val[1]), vget_low_f32(posSamp1.val[1]));
+
+            // Note: speed is affected by accumulation order.
+            // Also, speed appears slower using vmul/vadd instead of vmla for
+            // stereo case, comparable for mono.
+
+            accum = vmlaq_f32(accum, negSamp0.val[0], negCoef.val[0]);
+            accum = vmlaq_f32(accum, negSamp1.val[0], negCoef.val[1]);
+            accum2 = vmlaq_f32(accum2, negSamp0.val[1], negCoef.val[0]);
+            accum2 = vmlaq_f32(accum2, negSamp1.val[1], negCoef.val[1]);
+
+            accum = vmlaq_f32(accum, posSamp0.val[0], posCoef.val[1]); // reversed
+            accum = vmlaq_f32(accum, posSamp1.val[0], posCoef.val[0]); // reversed
+            accum2 = vmlaq_f32(accum2, posSamp0.val[1], posCoef.val[1]); // reversed
+            accum2 = vmlaq_f32(accum2, posSamp1.val[1], posCoef.val[0]); // reversed
+        } break;
+        }
+    } while (count -= 8);
+
+    // multiply by volume and save
+    volumeLR = (const float*)__builtin_assume_aligned(volumeLR, 8);
+    float32x2_t vLR = vld1_f32(volumeLR);
+    float32x2_t outSamp = vld1_f32(out);
+    // combine and funnel down accumulator
+    float32x2_t outAccum = vpadd_f32(vget_low_f32(accum), vget_high_f32(accum));
+    if (CHANNELS == 1) {
+        // duplicate accum to both L and R
+        outAccum = vpadd_f32(outAccum, outAccum);
+    } else if (CHANNELS == 2) {
+        // accum2 contains R, fold in
+        float32x2_t outAccum2 = vpadd_f32(vget_low_f32(accum2), vget_high_f32(accum2));
+        outAccum = vpadd_f32(outAccum, outAccum2);
+    }
+    outSamp = vmla_f32(outSamp, outAccum, vLR);
+    vst1_f32(out, outSamp);
+}
+
+template <>
+inline void ProcessL<1, 16>(int32_t* const out,
+        int count,
+        const int16_t* coefsP,
+        const int16_t* coefsN,
+        const int16_t* sP,
+        const int16_t* sN,
+        const int32_t* const volumeLR)
+{
+#ifdef USE_INTRINSIC
+    ProcessNeonIntrinsic<1, 16, true>(out, count, coefsP, coefsN, sP, sN, volumeLR,
+            0 /*lerpP*/, NULL /*coefsP1*/, NULL /*coefsN1*/);
+#else
+    const int CHANNELS = 1; // template specialization does not preserve params
+    const int STRIDE = 16;
+    sP -= CHANNELS*((STRIDE>>1)-1);
+    asm (
+        "veor           q0, q0, q0               \n"// (0 - combines+) accumulator = 0
+
+        "1:                                      \n"
+
+        "vld1.16        {q2}, [%[sP]]            \n"// (2+0d) load 8 16-bits mono samples
+        "vld1.16        {q3}, [%[sN]]!           \n"// (2) load 8 16-bits mono samples
+        "vld1.16        {q8}, [%[coefsP0]:128]!  \n"// (1) load 8 16-bits coefs
+        "vld1.16        {q10}, [%[coefsN0]:128]! \n"// (1) load 8 16-bits coefs
+
+        "vrev64.16      q2, q2                   \n"// (1) reverse s3, s2, s1, s0, s7, s6, s5, s4
+
+        // reordering the vmal to do d6, d7 before d4, d5 is slower(?)
+        "vmlal.s16      q0, d4, d17              \n"// (1+0d) multiply (reversed)samples by coef
+        "vmlal.s16      q0, d5, d16              \n"// (1) multiply (reversed)samples by coef
+        "vmlal.s16      q0, d6, d20              \n"// (1) multiply neg samples
+        "vmlal.s16      q0, d7, d21              \n"// (1) multiply neg samples
+
+        // moving these ARM instructions before neon above seems to be slower
+        "subs           %[count], %[count], #8   \n"// (1) update loop counter
+        "sub            %[sP], %[sP], #16        \n"// (0) move pointer to next set of samples
+
+        // sP used after branch (warning)
+        "bne            1b                       \n"// loop
+
+         ASSEMBLY_ACCUMULATE_MONO
+
+        : [out]     "=Uv" (out[0]),
+          [count]   "+r" (count),
+          [coefsP0] "+r" (coefsP),
+          [coefsN0] "+r" (coefsN),
+          [sP]      "+r" (sP),
+          [sN]      "+r" (sN)
+        : [vLR]     "r" (volumeLR)
+        : "cc", "memory",
+          "q0", "q1", "q2", "q3",
+          "q8", "q10"
+    );
+#endif
+}
+
+template <>
+inline void ProcessL<2, 16>(int32_t* const out,
+        int count,
+        const int16_t* coefsP,
+        const int16_t* coefsN,
+        const int16_t* sP,
+        const int16_t* sN,
+        const int32_t* const volumeLR)
+{
+#ifdef USE_INTRINSIC
+    ProcessNeonIntrinsic<2, 16, true>(out, count, coefsP, coefsN, sP, sN, volumeLR,
+            0 /*lerpP*/, NULL /*coefsP1*/, NULL /*coefsN1*/);
+#else
+    const int CHANNELS = 2; // template specialization does not preserve params
+    const int STRIDE = 16;
+    sP -= CHANNELS*((STRIDE>>1)-1);
+    asm (
+        "veor           q0, q0, q0               \n"// (1) acc_L = 0
+        "veor           q4, q4, q4               \n"// (0 combines+) acc_R = 0
+
+        "1:                                      \n"
+
+        "vld2.16        {q2, q3}, [%[sP]]        \n"// (3+0d) load 8 16-bits stereo frames
+        "vld2.16        {q5, q6}, [%[sN]]!       \n"// (3) load 8 16-bits stereo frames
+        "vld1.16        {q8}, [%[coefsP0]:128]!  \n"// (1) load 8 16-bits coefs
+        "vld1.16        {q10}, [%[coefsN0]:128]! \n"// (1) load 8 16-bits coefs
+
+        "vrev64.16      q2, q2                   \n"// (1) reverse 8 samples of positive left
+        "vrev64.16      q3, q3                   \n"// (0 combines+) reverse positive right
+
+        "vmlal.s16      q0, d4, d17              \n"// (1) multiply (reversed) samples left
+        "vmlal.s16      q0, d5, d16              \n"// (1) multiply (reversed) samples left
+        "vmlal.s16      q4, d6, d17              \n"// (1) multiply (reversed) samples right
+        "vmlal.s16      q4, d7, d16              \n"// (1) multiply (reversed) samples right
+        "vmlal.s16      q0, d10, d20             \n"// (1) multiply samples left
+        "vmlal.s16      q0, d11, d21             \n"// (1) multiply samples left
+        "vmlal.s16      q4, d12, d20             \n"// (1) multiply samples right
+        "vmlal.s16      q4, d13, d21             \n"// (1) multiply samples right
+
+        // moving these ARM before neon seems to be slower
+        "subs           %[count], %[count], #8   \n"// (1) update loop counter
+        "sub            %[sP], %[sP], #32        \n"// (0) move pointer to next set of samples
+
+        // sP used after branch (warning)
+        "bne            1b                       \n"// loop
+
+        ASSEMBLY_ACCUMULATE_STEREO
+
+        : [out] "=Uv" (out[0]),
+          [count] "+r" (count),
+          [coefsP0] "+r" (coefsP),
+          [coefsN0] "+r" (coefsN),
+          [sP] "+r" (sP),
+          [sN] "+r" (sN)
+        : [vLR] "r" (volumeLR)
+        : "cc", "memory",
+          "q0", "q1", "q2", "q3",
+          "q4", "q5", "q6",
+          "q8", "q10"
+     );
+#endif
+}
+
+template <>
+inline void Process<1, 16>(int32_t* const out,
+        int count,
+        const int16_t* coefsP,
+        const int16_t* coefsN,
+        const int16_t* coefsP1,
+        const int16_t* coefsN1,
+        const int16_t* sP,
+        const int16_t* sN,
+        uint32_t lerpP,
+        const int32_t* const volumeLR)
+{
+#ifdef USE_INTRINSIC
+    ProcessNeonIntrinsic<1, 16, false>(out, count, coefsP, coefsN, sP, sN, volumeLR,
+            lerpP, coefsP1, coefsN1);
+#else
+
+    const int CHANNELS = 1; // template specialization does not preserve params
+    const int STRIDE = 16;
+    sP -= CHANNELS*((STRIDE>>1)-1);
+    asm (
+        "vmov.32        d2[0], %[lerpP]          \n"// load the positive phase S32 Q15
+        "veor           q0, q0, q0               \n"// (0 - combines+) accumulator = 0
+
+        "1:                                      \n"
+
+        "vld1.16        {q2}, [%[sP]]            \n"// (2+0d) load 8 16-bits mono samples
+        "vld1.16        {q3}, [%[sN]]!           \n"// (2) load 8 16-bits mono samples
+        "vld1.16        {q8}, [%[coefsP0]:128]!  \n"// (1) load 8 16-bits coefs
+        "vld1.16        {q9}, [%[coefsP1]:128]!  \n"// (1) load 8 16-bits coefs for interpolation
+        "vld1.16        {q10}, [%[coefsN1]:128]! \n"// (1) load 8 16-bits coefs
+        "vld1.16        {q11}, [%[coefsN0]:128]! \n"// (1) load 8 16-bits coefs for interpolation
+
+        "vsub.s16       q9, q9, q8               \n"// (1) interpolate (step1) 1st set of coefs
+        "vsub.s16       q11, q11, q10            \n"// (1) interpolate (step1) 2nd set of coets
+
+        "vqrdmulh.s16   q9, q9, d2[0]            \n"// (2) interpolate (step2) 1st set of coefs
+        "vqrdmulh.s16   q11, q11, d2[0]          \n"// (2) interpolate (step2) 2nd set of coefs
+
+        "vrev64.16      q2, q2                   \n"// (1) reverse s3, s2, s1, s0, s7, s6, s5, s4
+
+        "vadd.s16       q8, q8, q9               \n"// (1+2d) interpolate (step3) 1st set
+        "vadd.s16       q10, q10, q11            \n"// (1+1d) interpolate (step3) 2nd set
+
+        // reordering the vmal to do d6, d7 before d4, d5 is slower(?)
+        "vmlal.s16      q0, d4, d17              \n"// (1+0d) multiply reversed samples by coef
+        "vmlal.s16      q0, d5, d16              \n"// (1) multiply reversed samples by coef
+        "vmlal.s16      q0, d6, d20              \n"// (1) multiply neg samples
+        "vmlal.s16      q0, d7, d21              \n"// (1) multiply neg samples
+
+        // moving these ARM instructions before neon above seems to be slower
+        "subs           %[count], %[count], #8   \n"// (1) update loop counter
+        "sub            %[sP], %[sP], #16        \n"// (0) move pointer to next set of samples
+
+        // sP used after branch (warning)
+        "bne            1b                       \n"// loop
+
+        ASSEMBLY_ACCUMULATE_MONO
+
+        : [out]     "=Uv" (out[0]),
+          [count]   "+r" (count),
+          [coefsP0] "+r" (coefsP),
+          [coefsN0] "+r" (coefsN),
+          [coefsP1] "+r" (coefsP1),
+          [coefsN1] "+r" (coefsN1),
+          [sP]      "+r" (sP),
+          [sN]      "+r" (sN)
+        : [lerpP]   "r" (lerpP),
+          [vLR]     "r" (volumeLR)
+        : "cc", "memory",
+          "q0", "q1", "q2", "q3",
+          "q8", "q9", "q10", "q11"
+    );
+#endif
+}
+
+template <>
+inline void Process<2, 16>(int32_t* const out,
+        int count,
+        const int16_t* coefsP,
+        const int16_t* coefsN,
+        const int16_t* coefsP1,
+        const int16_t* coefsN1,
+        const int16_t* sP,
+        const int16_t* sN,
+        uint32_t lerpP,
+        const int32_t* const volumeLR)
+{
+#ifdef USE_INTRINSIC
+    ProcessNeonIntrinsic<2, 16, false>(out, count, coefsP, coefsN, sP, sN, volumeLR,
+            lerpP, coefsP1, coefsN1);
+#else
+    const int CHANNELS = 2; // template specialization does not preserve params
+    const int STRIDE = 16;
+    sP -= CHANNELS*((STRIDE>>1)-1);
+    asm (
+        "vmov.32        d2[0], %[lerpP]          \n"// load the positive phase
+        "veor           q0, q0, q0               \n"// (1) acc_L = 0
+        "veor           q4, q4, q4               \n"// (0 combines+) acc_R = 0
+
+        "1:                                      \n"
+
+        "vld2.16        {q2, q3}, [%[sP]]        \n"// (3+0d) load 8 16-bits stereo frames
+        "vld2.16        {q5, q6}, [%[sN]]!       \n"// (3) load 8 16-bits stereo frames
+        "vld1.16        {q8}, [%[coefsP0]:128]!  \n"// (1) load 8 16-bits coefs
+        "vld1.16        {q9}, [%[coefsP1]:128]!  \n"// (1) load 8 16-bits coefs for interpolation
+        "vld1.16        {q10}, [%[coefsN1]:128]! \n"// (1) load 8 16-bits coefs
+        "vld1.16        {q11}, [%[coefsN0]:128]! \n"// (1) load 8 16-bits coefs for interpolation
+
+        "vsub.s16       q9, q9, q8               \n"// (1) interpolate (step1) 1st set of coefs
+        "vsub.s16       q11, q11, q10            \n"// (1) interpolate (step1) 2nd set of coets
+
+        "vqrdmulh.s16   q9, q9, d2[0]            \n"// (2) interpolate (step2) 1st set of coefs
+        "vqrdmulh.s16   q11, q11, d2[0]          \n"// (2) interpolate (step2) 2nd set of coefs
+
+        "vrev64.16      q2, q2                   \n"// (1) reverse 8 samples of positive left
+        "vrev64.16      q3, q3                   \n"// (1) reverse 8 samples of positive right
+
+        "vadd.s16       q8, q8, q9               \n"// (1+1d) interpolate (step3) 1st set
+        "vadd.s16       q10, q10, q11            \n"// (1+1d) interpolate (step3) 2nd set
+
+        "vmlal.s16      q0, d4, d17              \n"// (1) multiply reversed samples left
+        "vmlal.s16      q0, d5, d16              \n"// (1) multiply reversed samples left
+        "vmlal.s16      q4, d6, d17              \n"// (1) multiply reversed samples right
+        "vmlal.s16      q4, d7, d16              \n"// (1) multiply reversed samples right
+        "vmlal.s16      q0, d10, d20             \n"// (1) multiply samples left
+        "vmlal.s16      q0, d11, d21             \n"// (1) multiply samples left
+        "vmlal.s16      q4, d12, d20             \n"// (1) multiply samples right
+        "vmlal.s16      q4, d13, d21             \n"// (1) multiply samples right
+
+        // moving these ARM before neon seems to be slower
+        "subs           %[count], %[count], #8   \n"// (1) update loop counter
+        "sub            %[sP], %[sP], #32        \n"// (0) move pointer to next set of samples
+
+        // sP used after branch (warning)
+        "bne            1b                       \n"// loop
+
+        ASSEMBLY_ACCUMULATE_STEREO
+
+        : [out] "=Uv" (out[0]),
+          [count] "+r" (count),
+          [coefsP0] "+r" (coefsP),
+          [coefsN0] "+r" (coefsN),
+          [coefsP1] "+r" (coefsP1),
+          [coefsN1] "+r" (coefsN1),
+          [sP] "+r" (sP),
+          [sN] "+r" (sN)
+        : [lerpP]   "r" (lerpP),
+          [vLR] "r" (volumeLR)
+        : "cc", "memory",
+          "q0", "q1", "q2", "q3",
+          "q4", "q5", "q6",
+          "q8", "q9", "q10", "q11"
+    );
+#endif
+}
+
+template <>
+inline void ProcessL<1, 16>(int32_t* const out,
+        int count,
+        const int32_t* coefsP,
+        const int32_t* coefsN,
+        const int16_t* sP,
+        const int16_t* sN,
+        const int32_t* const volumeLR)
+{
+#ifdef USE_INTRINSIC
+    ProcessNeonIntrinsic<1, 16, true>(out, count, coefsP, coefsN, sP, sN, volumeLR,
+            0 /*lerpP*/, NULL /*coefsP1*/, NULL /*coefsN1*/);
+#else
+    const int CHANNELS = 1; // template specialization does not preserve params
+    const int STRIDE = 16;
+    sP -= CHANNELS*((STRIDE>>1)-1);
+    asm (
+        "veor           q0, q0, q0                    \n"// result, initialize to 0
+
+        "1:                                           \n"
+
+        "vld1.16        {q2}, [%[sP]]                 \n"// load 8 16-bits mono samples
+        "vld1.16        {q3}, [%[sN]]!                \n"// load 8 16-bits mono samples
+        "vld1.32        {q8, q9}, [%[coefsP0]:128]!   \n"// load 8 32-bits coefs
+        "vld1.32        {q10, q11}, [%[coefsN0]:128]! \n"// load 8 32-bits coefs
+
+        "vrev64.16      q2, q2                        \n"// reverse 8 samples of the positive side
+
+        "vshll.s16      q12, d4, #15                  \n"// extend samples to 31 bits
+        "vshll.s16      q13, d5, #15                  \n"// extend samples to 31 bits
+
+        "vshll.s16      q14, d6, #15                  \n"// extend samples to 31 bits
+        "vshll.s16      q15, d7, #15                  \n"// extend samples to 31 bits
+
+        "vqrdmulh.s32   q12, q12, q9                  \n"// multiply samples
+        "vqrdmulh.s32   q13, q13, q8                  \n"// multiply samples
+        "vqrdmulh.s32   q14, q14, q10                 \n"// multiply samples
+        "vqrdmulh.s32   q15, q15, q11                 \n"// multiply samples
+
+        "vadd.s32       q0, q0, q12                   \n"// accumulate result
+        "vadd.s32       q13, q13, q14                 \n"// accumulate result
+        "vadd.s32       q0, q0, q15                   \n"// accumulate result
+        "vadd.s32       q0, q0, q13                   \n"// accumulate result
+
+        "sub            %[sP], %[sP], #16             \n"// move pointer to next set of samples
+        "subs           %[count], %[count], #8        \n"// update loop counter
+
+        "bne            1b                            \n"// loop
+
+        ASSEMBLY_ACCUMULATE_MONO
+
+        : [out]     "=Uv" (out[0]),
+          [count]   "+r" (count),
+          [coefsP0] "+r" (coefsP),
+          [coefsN0] "+r" (coefsN),
+          [sP]      "+r" (sP),
+          [sN]      "+r" (sN)
+        : [vLR]     "r" (volumeLR)
+        : "cc", "memory",
+          "q0", "q1", "q2", "q3",
+          "q8", "q9", "q10", "q11",
+          "q12", "q13", "q14", "q15"
+    );
+#endif
+}
+
+template <>
+inline void ProcessL<2, 16>(int32_t* const out,
+        int count,
+        const int32_t* coefsP,
+        const int32_t* coefsN,
+        const int16_t* sP,
+        const int16_t* sN,
+        const int32_t* const volumeLR)
+{
+#ifdef USE_INTRINSIC
+    ProcessNeonIntrinsic<2, 16, true>(out, count, coefsP, coefsN, sP, sN, volumeLR,
+            0 /*lerpP*/, NULL /*coefsP1*/, NULL /*coefsN1*/);
+#else
+    const int CHANNELS = 2; // template specialization does not preserve params
+    const int STRIDE = 16;
+    sP -= CHANNELS*((STRIDE>>1)-1);
+    asm (
+        "veor           q0, q0, q0                    \n"// result, initialize to 0
+        "veor           q4, q4, q4                    \n"// result, initialize to 0
+
+        "1:                                           \n"
+
+        "vld2.16        {q2, q3}, [%[sP]]             \n"// load 8 16-bits stereo frames
+        "vld2.16        {q5, q6}, [%[sN]]!            \n"// load 8 16-bits stereo frames
+        "vld1.32        {q8, q9}, [%[coefsP0]:128]!   \n"// load 8 32-bits coefs
+        "vld1.32        {q10, q11}, [%[coefsN0]:128]! \n"// load 8 32-bits coefs
+
+        "vrev64.16      q2, q2                        \n"// reverse 8 samples of positive left
+        "vrev64.16      q3, q3                        \n"// reverse 8 samples of positive right
+
+        "vshll.s16      q12,  d4, #15                 \n"// extend samples to 31 bits
+        "vshll.s16      q13,  d5, #15                 \n"// extend samples to 31 bits
+
+        "vshll.s16      q14,  d10, #15                \n"// extend samples to 31 bits
+        "vshll.s16      q15,  d11, #15                \n"// extend samples to 31 bits
+
+        "vqrdmulh.s32   q12, q12, q9                  \n"// multiply samples by coef
+        "vqrdmulh.s32   q13, q13, q8                  \n"// multiply samples by coef
+        "vqrdmulh.s32   q14, q14, q10                 \n"// multiply samples by coef
+        "vqrdmulh.s32   q15, q15, q11                 \n"// multiply samples by coef
+
+        "vadd.s32       q0, q0, q12                   \n"// accumulate result
+        "vadd.s32       q13, q13, q14                 \n"// accumulate result
+        "vadd.s32       q0, q0, q15                   \n"// accumulate result
+        "vadd.s32       q0, q0, q13                   \n"// accumulate result
+
+        "vshll.s16      q12,  d6, #15                 \n"// extend samples to 31 bits
+        "vshll.s16      q13,  d7, #15                 \n"// extend samples to 31 bits
+
+        "vshll.s16      q14,  d12, #15                \n"// extend samples to 31 bits
+        "vshll.s16      q15,  d13, #15                \n"// extend samples to 31 bits
+
+        "vqrdmulh.s32   q12, q12, q9                  \n"// multiply samples by coef
+        "vqrdmulh.s32   q13, q13, q8                  \n"// multiply samples by coef
+        "vqrdmulh.s32   q14, q14, q10                 \n"// multiply samples by coef
+        "vqrdmulh.s32   q15, q15, q11                 \n"// multiply samples by coef
+
+        "vadd.s32       q4, q4, q12                   \n"// accumulate result
+        "vadd.s32       q13, q13, q14                 \n"// accumulate result
+        "vadd.s32       q4, q4, q15                   \n"// accumulate result
+        "vadd.s32       q4, q4, q13                   \n"// accumulate result
+
+        "subs           %[count], %[count], #8        \n"// update loop counter
+        "sub            %[sP], %[sP], #32             \n"// move pointer to next set of samples
+
+        "bne            1b                            \n"// loop
+
+        ASSEMBLY_ACCUMULATE_STEREO
+
+        : [out]     "=Uv" (out[0]),
+          [count]   "+r" (count),
+          [coefsP0] "+r" (coefsP),
+          [coefsN0] "+r" (coefsN),
+          [sP]      "+r" (sP),
+          [sN]      "+r" (sN)
+        : [vLR]     "r" (volumeLR)
+        : "cc", "memory",
+          "q0", "q1", "q2", "q3",
+          "q4", "q5", "q6",
+          "q8", "q9", "q10", "q11",
+          "q12", "q13", "q14", "q15"
+    );
+#endif
+}
+
+template <>
+inline void Process<1, 16>(int32_t* const out,
+        int count,
+        const int32_t* coefsP,
+        const int32_t* coefsN,
+        const int32_t* coefsP1,
+        const int32_t* coefsN1,
+        const int16_t* sP,
+        const int16_t* sN,
+        uint32_t lerpP,
+        const int32_t* const volumeLR)
+{
+#ifdef USE_INTRINSIC
+    ProcessNeonIntrinsic<1, 16, false>(out, count, coefsP, coefsN, sP, sN, volumeLR,
+            lerpP, coefsP1, coefsN1);
+#else
+    const int CHANNELS = 1; // template specialization does not preserve params
+    const int STRIDE = 16;
+    sP -= CHANNELS*((STRIDE>>1)-1);
+    asm (
+        "vmov.32        d2[0], %[lerpP]               \n"// load the positive phase
+        "veor           q0, q0, q0                    \n"// result, initialize to 0
+
+        "1:                                           \n"
+
+        "vld1.16        {q2}, [%[sP]]                 \n"// load 8 16-bits mono samples
+        "vld1.16        {q3}, [%[sN]]!                \n"// load 8 16-bits mono samples
+        "vld1.32        {q8, q9}, [%[coefsP0]:128]!   \n"// load 8 32-bits coefs
+        "vld1.32        {q12, q13}, [%[coefsP1]:128]! \n"// load 8 32-bits coefs
+        "vld1.32        {q10, q11}, [%[coefsN1]:128]! \n"// load 8 32-bits coefs
+        "vld1.32        {q14, q15}, [%[coefsN0]:128]! \n"// load 8 32-bits coefs
+
+        "vsub.s32       q12, q12, q8                  \n"// interpolate (step1)
+        "vsub.s32       q13, q13, q9                  \n"// interpolate (step1)
+        "vsub.s32       q14, q14, q10                 \n"// interpolate (step1)
+        "vsub.s32       q15, q15, q11                 \n"// interpolate (step1)
+
+        "vqrdmulh.s32   q12, q12, d2[0]               \n"// interpolate (step2)
+        "vqrdmulh.s32   q13, q13, d2[0]               \n"// interpolate (step2)
+        "vqrdmulh.s32   q14, q14, d2[0]               \n"// interpolate (step2)
+        "vqrdmulh.s32   q15, q15, d2[0]               \n"// interpolate (step2)
+
+        "vadd.s32       q8, q8, q12                   \n"// interpolate (step3)
+        "vadd.s32       q9, q9, q13                   \n"// interpolate (step3)
+        "vadd.s32       q10, q10, q14                 \n"// interpolate (step3)
+        "vadd.s32       q11, q11, q15                 \n"// interpolate (step3)
+
+        "vrev64.16      q2, q2                        \n"// reverse 8 samples of the positive side
+
+        "vshll.s16      q12,  d4, #15                 \n"// extend samples to 31 bits
+        "vshll.s16      q13,  d5, #15                 \n"// extend samples to 31 bits
+
+        "vshll.s16      q14,  d6, #15                 \n"// extend samples to 31 bits
+        "vshll.s16      q15,  d7, #15                 \n"// extend samples to 31 bits
+
+        "vqrdmulh.s32   q12, q12, q9                  \n"// multiply samples by interpolated coef
+        "vqrdmulh.s32   q13, q13, q8                  \n"// multiply samples by interpolated coef
+        "vqrdmulh.s32   q14, q14, q10                 \n"// multiply samples by interpolated coef
+        "vqrdmulh.s32   q15, q15, q11                 \n"// multiply samples by interpolated coef
+
+        "vadd.s32       q0, q0, q12                   \n"// accumulate result
+        "vadd.s32       q13, q13, q14                 \n"// accumulate result
+        "vadd.s32       q0, q0, q15                   \n"// accumulate result
+        "vadd.s32       q0, q0, q13                   \n"// accumulate result
+
+        "sub            %[sP], %[sP], #16             \n"// move pointer to next set of samples
+        "subs           %[count], %[count], #8        \n"// update loop counter
+
+        "bne            1b                            \n"// loop
+
+        ASSEMBLY_ACCUMULATE_MONO
+
+        : [out]     "=Uv" (out[0]),
+          [count]   "+r" (count),
+          [coefsP0] "+r" (coefsP),
+          [coefsN0] "+r" (coefsN),
+          [coefsP1] "+r" (coefsP1),
+          [coefsN1] "+r" (coefsN1),
+          [sP]      "+r" (sP),
+          [sN]      "+r" (sN)
+        : [lerpP]   "r" (lerpP),
+          [vLR]     "r" (volumeLR)
+        : "cc", "memory",
+          "q0", "q1", "q2", "q3",
+          "q8", "q9", "q10", "q11",
+          "q12", "q13", "q14", "q15"
+    );
+#endif
+}
+
+template <>
+inline void Process<2, 16>(int32_t* const out,
+        int count,
+        const int32_t* coefsP,
+        const int32_t* coefsN,
+        const int32_t* coefsP1,
+        const int32_t* coefsN1,
+        const int16_t* sP,
+        const int16_t* sN,
+        uint32_t lerpP,
+        const int32_t* const volumeLR)
+{
+#ifdef USE_INTRINSIC
+    ProcessNeonIntrinsic<2, 16, false>(out, count, coefsP, coefsN, sP, sN, volumeLR,
+            lerpP, coefsP1, coefsN1);
+#else
+    const int CHANNELS = 2; // template specialization does not preserve params
+    const int STRIDE = 16;
+    sP -= CHANNELS*((STRIDE>>1)-1);
+    asm (
+        "vmov.32        d2[0], %[lerpP]               \n"// load the positive phase
+        "veor           q0, q0, q0                    \n"// result, initialize to 0
+        "veor           q4, q4, q4                    \n"// result, initialize to 0
+
+        "1:                                           \n"
+
+        "vld2.16        {q2, q3}, [%[sP]]             \n"// load 8 16-bits stereo frames
+        "vld2.16        {q5, q6}, [%[sN]]!            \n"// load 8 16-bits stereo frames
+        "vld1.32        {q8, q9}, [%[coefsP0]:128]!   \n"// load 8 32-bits coefs
+        "vld1.32        {q12, q13}, [%[coefsP1]:128]! \n"// load 8 32-bits coefs
+        "vld1.32        {q10, q11}, [%[coefsN1]:128]! \n"// load 8 32-bits coefs
+        "vld1.32        {q14, q15}, [%[coefsN0]:128]! \n"// load 8 32-bits coefs
+
+        "vsub.s32       q12, q12, q8                  \n"// interpolate (step1)
+        "vsub.s32       q13, q13, q9                  \n"// interpolate (step1)
+        "vsub.s32       q14, q14, q10                 \n"// interpolate (step1)
+        "vsub.s32       q15, q15, q11                 \n"// interpolate (step1)
+
+        "vqrdmulh.s32   q12, q12, d2[0]               \n"// interpolate (step2)
+        "vqrdmulh.s32   q13, q13, d2[0]               \n"// interpolate (step2)
+        "vqrdmulh.s32   q14, q14, d2[0]               \n"// interpolate (step2)
+        "vqrdmulh.s32   q15, q15, d2[0]               \n"// interpolate (step2)
+
+        "vadd.s32       q8, q8, q12                   \n"// interpolate (step3)
+        "vadd.s32       q9, q9, q13                   \n"// interpolate (step3)
+        "vadd.s32       q10, q10, q14                 \n"// interpolate (step3)
+        "vadd.s32       q11, q11, q15                 \n"// interpolate (step3)
+
+        "vrev64.16      q2, q2                        \n"// reverse 8 samples of positive left
+        "vrev64.16      q3, q3                        \n"// reverse 8 samples of positive right
+
+        "vshll.s16      q12,  d4, #15                 \n"// extend samples to 31 bits
+        "vshll.s16      q13,  d5, #15                 \n"// extend samples to 31 bits
+
+        "vshll.s16      q14,  d10, #15                \n"// extend samples to 31 bits
+        "vshll.s16      q15,  d11, #15                \n"// extend samples to 31 bits
+
+        "vqrdmulh.s32   q12, q12, q9                  \n"// multiply samples by interpolated coef
+        "vqrdmulh.s32   q13, q13, q8                  \n"// multiply samples by interpolated coef
+        "vqrdmulh.s32   q14, q14, q10                 \n"// multiply samples by interpolated coef
+        "vqrdmulh.s32   q15, q15, q11                 \n"// multiply samples by interpolated coef
+
+        "vadd.s32       q0, q0, q12                   \n"// accumulate result
+        "vadd.s32       q13, q13, q14                 \n"// accumulate result
+        "vadd.s32       q0, q0, q15                   \n"// accumulate result
+        "vadd.s32       q0, q0, q13                   \n"// accumulate result
+
+        "vshll.s16      q12,  d6, #15                 \n"// extend samples to 31 bits
+        "vshll.s16      q13,  d7, #15                 \n"// extend samples to 31 bits
+
+        "vshll.s16      q14,  d12, #15                \n"// extend samples to 31 bits
+        "vshll.s16      q15,  d13, #15                \n"// extend samples to 31 bits
+
+        "vqrdmulh.s32   q12, q12, q9                  \n"// multiply samples by interpolated coef
+        "vqrdmulh.s32   q13, q13, q8                  \n"// multiply samples by interpolated coef
+        "vqrdmulh.s32   q14, q14, q10                 \n"// multiply samples by interpolated coef
+        "vqrdmulh.s32   q15, q15, q11                 \n"// multiply samples by interpolated coef
+
+        "vadd.s32       q4, q4, q12                   \n"// accumulate result
+        "vadd.s32       q13, q13, q14                 \n"// accumulate result
+        "vadd.s32       q4, q4, q15                   \n"// accumulate result
+        "vadd.s32       q4, q4, q13                   \n"// accumulate result
+
+        "subs           %[count], %[count], #8        \n"// update loop counter
+        "sub            %[sP], %[sP], #32             \n"// move pointer to next set of samples
+
+        "bne            1b                            \n"// loop
+
+        ASSEMBLY_ACCUMULATE_STEREO
+
+        : [out]     "=Uv" (out[0]),
+          [count]   "+r" (count),
+          [coefsP0] "+r" (coefsP),
+          [coefsN0] "+r" (coefsN),
+          [coefsP1] "+r" (coefsP1),
+          [coefsN1] "+r" (coefsN1),
+          [sP]      "+r" (sP),
+          [sN]      "+r" (sN)
+        : [lerpP]   "r" (lerpP),
+          [vLR]     "r" (volumeLR)
+        : "cc", "memory",
+          "q0", "q1", "q2", "q3",
+          "q4", "q5", "q6",
+          "q8", "q9", "q10", "q11",
+          "q12", "q13", "q14", "q15"
+    );
+#endif
+}
+
+template<>
+inline void ProcessL<1, 16>(float* const out,
+        int count,
+        const float* coefsP,
+        const float* coefsN,
+        const float* sP,
+        const float* sN,
+        const float* const volumeLR)
+{
+    ProcessNeonIntrinsic<1, 16, true>(out, count, coefsP, coefsN, sP, sN, volumeLR,
+            0 /*lerpP*/, NULL /*coefsP1*/, NULL /*coefsN1*/);
+}
+
+template<>
+inline void ProcessL<2, 16>(float* const out,
+        int count,
+        const float* coefsP,
+        const float* coefsN,
+        const float* sP,
+        const float* sN,
+        const float* const volumeLR)
+{
+    ProcessNeonIntrinsic<2, 16, true>(out, count, coefsP, coefsN, sP, sN, volumeLR,
+            0 /*lerpP*/, NULL /*coefsP1*/, NULL /*coefsN1*/);
+}
+
+template<>
+inline void Process<1, 16>(float* const out,
+        int count,
+        const float* coefsP,
+        const float* coefsN,
+        const float* coefsP1,
+        const float* coefsN1,
+        const float* sP,
+        const float* sN,
+        float lerpP,
+        const float* const volumeLR)
+{
+    ProcessNeonIntrinsic<1, 16, false>(out, count, coefsP, coefsN, sP, sN, volumeLR,
+            lerpP, coefsP1, coefsN1);
+}
+
+template<>
+inline void Process<2, 16>(float* const out,
+        int count,
+        const float* coefsP,
+        const float* coefsN,
+        const float* coefsP1,
+        const float* coefsN1,
+        const float* sP,
+        const float* sN,
+        float lerpP,
+        const float* const volumeLR)
+{
+    ProcessNeonIntrinsic<2, 16, false>(out, count, coefsP, coefsN, sP, sN, volumeLR,
+            lerpP, coefsP1, coefsN1);
+}
+
+#endif //USE_NEON
+
+} // namespace android
+
+#endif /*ANDROID_AUDIO_RESAMPLER_FIR_PROCESS_NEON_H*/
diff --git a/services/audioflinger/AudioResamplerFirProcessSSE.h b/media/libaudioprocessing/AudioResamplerFirProcessSSE.h
similarity index 100%
rename from services/audioflinger/AudioResamplerFirProcessSSE.h
rename to media/libaudioprocessing/AudioResamplerFirProcessSSE.h
diff --git a/services/audioflinger/AudioResamplerSinc.cpp b/media/libaudioprocessing/AudioResamplerSinc.cpp
similarity index 100%
rename from services/audioflinger/AudioResamplerSinc.cpp
rename to media/libaudioprocessing/AudioResamplerSinc.cpp
diff --git a/media/libaudioprocessing/AudioResamplerSinc.h b/media/libaudioprocessing/AudioResamplerSinc.h
new file mode 100644
index 0000000..f6dcf91
--- /dev/null
+++ b/media/libaudioprocessing/AudioResamplerSinc.h
@@ -0,0 +1,100 @@
+/*
+ * Copyright (C) 2007 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_AUDIO_RESAMPLER_SINC_H
+#define ANDROID_AUDIO_RESAMPLER_SINC_H
+
+#include <stdint.h>
+#include <sys/types.h>
+#include <android/log.h>
+
+#include <media/AudioResampler.h>
+
+namespace android {
+
+
+typedef const int32_t * (*readCoefficientsFn)(bool upDownSample);
+typedef int32_t (*readResampleFirNumCoeffFn)();
+typedef int32_t (*readResampleFirLerpIntBitsFn)();
+
+// ----------------------------------------------------------------------------
+
+class AudioResamplerSinc : public AudioResampler {
+public:
+    AudioResamplerSinc(int inChannelCount, int32_t sampleRate,
+            src_quality quality = HIGH_QUALITY);
+
+    virtual ~AudioResamplerSinc();
+
+    virtual size_t resample(int32_t* out, size_t outFrameCount,
+            AudioBufferProvider* provider);
+private:
+    void init();
+
+    virtual void setVolume(float left, float right);
+
+    template<int CHANNELS>
+    size_t resample(int32_t* out, size_t outFrameCount,
+            AudioBufferProvider* provider);
+
+    template<int CHANNELS>
+    inline void filterCoefficient(
+            int32_t* out, uint32_t phase, const int16_t *samples, uint32_t vRL);
+
+    template<int CHANNELS>
+    inline void interpolate(
+            int32_t& l, int32_t& r,
+            const int32_t* coefs, size_t offset,
+            int32_t lerp, const int16_t* samples);
+
+    template<int CHANNELS>
+    inline void read(int16_t*& impulse, uint32_t& phaseFraction,
+            const int16_t* in, size_t inputIndex);
+
+    int16_t *mState;
+    int16_t *mImpulse;
+    int16_t *mRingFull;
+    int32_t mVolumeSIMD[2];
+
+    const int32_t * mFirCoefs;
+    static const uint32_t mFirCoefsDown[];
+    static const uint32_t mFirCoefsUp[];
+
+    // ----------------------------------------------------------------------------
+    static const int32_t RESAMPLE_FIR_NUM_COEF       = 8;
+    static const int32_t RESAMPLE_FIR_LERP_INT_BITS  = 7;
+
+    struct Constants {
+        int coefsBits;
+        int cShift;
+        uint32_t cMask;
+        int pShift;
+        uint32_t pMask;
+        // number of zero-crossing on each side
+        unsigned int halfNumCoefs;
+    };
+
+    static Constants highQualityConstants;
+    static Constants veryHighQualityConstants;
+    const Constants *mConstants;    // points to appropriate set of coefficient parameters
+
+    static void init_routine();
+};
+
+// ----------------------------------------------------------------------------
+} // namespace android
+
+#endif /*ANDROID_AUDIO_RESAMPLER_SINC_H*/
diff --git a/services/audioflinger/AudioResamplerSincDown.h b/media/libaudioprocessing/AudioResamplerSincDown.h
similarity index 100%
rename from services/audioflinger/AudioResamplerSincDown.h
rename to media/libaudioprocessing/AudioResamplerSincDown.h
diff --git a/services/audioflinger/AudioResamplerSincUp.h b/media/libaudioprocessing/AudioResamplerSincUp.h
similarity index 100%
rename from services/audioflinger/AudioResamplerSincUp.h
rename to media/libaudioprocessing/AudioResamplerSincUp.h
diff --git a/media/libaudioprocessing/BufferProviders.cpp b/media/libaudioprocessing/BufferProviders.cpp
new file mode 100644
index 0000000..862fef6
--- /dev/null
+++ b/media/libaudioprocessing/BufferProviders.cpp
@@ -0,0 +1,596 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "BufferProvider"
+//#define LOG_NDEBUG 0
+
+#include <audio_utils/primitives.h>
+#include <audio_utils/format.h>
+#include <external/sonic/sonic.h>
+#include <media/audiohal/EffectBufferHalInterface.h>
+#include <media/audiohal/EffectHalInterface.h>
+#include <media/audiohal/EffectsFactoryHalInterface.h>
+#include <media/AudioResamplerPublic.h>
+#include <media/BufferProviders.h>
+#include <system/audio_effects/effect_downmix.h>
+#include <utils/Log.h>
+
+#ifndef ARRAY_SIZE
+#define ARRAY_SIZE(x) (sizeof(x)/sizeof((x)[0]))
+#endif
+
+namespace android {
+
+// ----------------------------------------------------------------------------
+
+template <typename T>
+static inline T min(const T& a, const T& b)
+{
+    return a < b ? a : b;
+}
+
+CopyBufferProvider::CopyBufferProvider(size_t inputFrameSize,
+        size_t outputFrameSize, size_t bufferFrameCount) :
+        mInputFrameSize(inputFrameSize),
+        mOutputFrameSize(outputFrameSize),
+        mLocalBufferFrameCount(bufferFrameCount),
+        mLocalBufferData(NULL),
+        mConsumed(0)
+{
+    ALOGV("CopyBufferProvider(%p)(%zu, %zu, %zu)", this,
+            inputFrameSize, outputFrameSize, bufferFrameCount);
+    LOG_ALWAYS_FATAL_IF(inputFrameSize < outputFrameSize && bufferFrameCount == 0,
+            "Requires local buffer if inputFrameSize(%zu) < outputFrameSize(%zu)",
+            inputFrameSize, outputFrameSize);
+    if (mLocalBufferFrameCount) {
+        (void)posix_memalign(&mLocalBufferData, 32, mLocalBufferFrameCount * mOutputFrameSize);
+    }
+    mBuffer.frameCount = 0;
+}
+
+CopyBufferProvider::~CopyBufferProvider()
+{
+    ALOGV("~CopyBufferProvider(%p)", this);
+    if (mBuffer.frameCount != 0) {
+        mTrackBufferProvider->releaseBuffer(&mBuffer);
+    }
+    free(mLocalBufferData);
+}
+
+status_t CopyBufferProvider::getNextBuffer(AudioBufferProvider::Buffer *pBuffer)
+{
+    //ALOGV("CopyBufferProvider(%p)::getNextBuffer(%p (%zu))",
+    //        this, pBuffer, pBuffer->frameCount);
+    if (mLocalBufferFrameCount == 0) {
+        status_t res = mTrackBufferProvider->getNextBuffer(pBuffer);
+        if (res == OK) {
+            copyFrames(pBuffer->raw, pBuffer->raw, pBuffer->frameCount);
+        }
+        return res;
+    }
+    if (mBuffer.frameCount == 0) {
+        mBuffer.frameCount = pBuffer->frameCount;
+        status_t res = mTrackBufferProvider->getNextBuffer(&mBuffer);
+        // At one time an upstream buffer provider had
+        // res == OK and mBuffer.frameCount == 0, doesn't seem to happen now 7/18/2014.
+        //
+        // By API spec, if res != OK, then mBuffer.frameCount == 0.
+        // but there may be improper implementations.
+        ALOG_ASSERT(res == OK || mBuffer.frameCount == 0);
+        if (res != OK || mBuffer.frameCount == 0) { // not needed by API spec, but to be safe.
+            pBuffer->raw = NULL;
+            pBuffer->frameCount = 0;
+            return res;
+        }
+        mConsumed = 0;
+    }
+    ALOG_ASSERT(mConsumed < mBuffer.frameCount);
+    size_t count = min(mLocalBufferFrameCount, mBuffer.frameCount - mConsumed);
+    count = min(count, pBuffer->frameCount);
+    pBuffer->raw = mLocalBufferData;
+    pBuffer->frameCount = count;
+    copyFrames(pBuffer->raw, (uint8_t*)mBuffer.raw + mConsumed * mInputFrameSize,
+            pBuffer->frameCount);
+    return OK;
+}
+
+void CopyBufferProvider::releaseBuffer(AudioBufferProvider::Buffer *pBuffer)
+{
+    //ALOGV("CopyBufferProvider(%p)::releaseBuffer(%p(%zu))",
+    //        this, pBuffer, pBuffer->frameCount);
+    if (mLocalBufferFrameCount == 0) {
+        mTrackBufferProvider->releaseBuffer(pBuffer);
+        return;
+    }
+    // LOG_ALWAYS_FATAL_IF(pBuffer->frameCount == 0, "Invalid framecount");
+    mConsumed += pBuffer->frameCount; // TODO: update for efficiency to reuse existing content
+    if (mConsumed != 0 && mConsumed >= mBuffer.frameCount) {
+        mTrackBufferProvider->releaseBuffer(&mBuffer);
+        ALOG_ASSERT(mBuffer.frameCount == 0);
+    }
+    pBuffer->raw = NULL;
+    pBuffer->frameCount = 0;
+}
+
+void CopyBufferProvider::reset()
+{
+    if (mBuffer.frameCount != 0) {
+        mTrackBufferProvider->releaseBuffer(&mBuffer);
+    }
+    mConsumed = 0;
+}
+
+DownmixerBufferProvider::DownmixerBufferProvider(
+        audio_channel_mask_t inputChannelMask,
+        audio_channel_mask_t outputChannelMask, audio_format_t format,
+        uint32_t sampleRate, int32_t sessionId, size_t bufferFrameCount) :
+        CopyBufferProvider(
+            audio_bytes_per_sample(format) * audio_channel_count_from_out_mask(inputChannelMask),
+            audio_bytes_per_sample(format) * audio_channel_count_from_out_mask(outputChannelMask),
+            bufferFrameCount)  // set bufferFrameCount to 0 to do in-place
+{
+    ALOGV("DownmixerBufferProvider(%p)(%#x, %#x, %#x %u %d %d)",
+            this, inputChannelMask, outputChannelMask, format,
+            sampleRate, sessionId, (int)bufferFrameCount);
+    if (!sIsMultichannelCapable) {
+        ALOGE("DownmixerBufferProvider() error: not multichannel capable");
+        return;
+    }
+    mEffectsFactory = EffectsFactoryHalInterface::create();
+    if (mEffectsFactory == 0) {
+        ALOGE("DownmixerBufferProvider() error: could not obtain the effects factory");
+        return;
+    }
+    if (mEffectsFactory->createEffect(&sDwnmFxDesc.uuid,
+                                      sessionId,
+                                      SESSION_ID_INVALID_AND_IGNORED,
+                                      &mDownmixInterface) != 0) {
+         ALOGE("DownmixerBufferProvider() error creating downmixer effect");
+         mDownmixInterface.clear();
+         mEffectsFactory.clear();
+         return;
+     }
+     // channel input configuration will be overridden per-track
+     mDownmixConfig.inputCfg.channels = inputChannelMask;   // FIXME: Should be bits
+     mDownmixConfig.outputCfg.channels = outputChannelMask; // FIXME: should be bits
+     mDownmixConfig.inputCfg.format = format;
+     mDownmixConfig.outputCfg.format = format;
+     mDownmixConfig.inputCfg.samplingRate = sampleRate;
+     mDownmixConfig.outputCfg.samplingRate = sampleRate;
+     mDownmixConfig.inputCfg.accessMode = EFFECT_BUFFER_ACCESS_READ;
+     mDownmixConfig.outputCfg.accessMode = EFFECT_BUFFER_ACCESS_WRITE;
+     // input and output buffer provider, and frame count will not be used as the downmix effect
+     // process() function is called directly (see DownmixerBufferProvider::getNextBuffer())
+     mDownmixConfig.inputCfg.mask = EFFECT_CONFIG_SMP_RATE | EFFECT_CONFIG_CHANNELS |
+             EFFECT_CONFIG_FORMAT | EFFECT_CONFIG_ACC_MODE;
+     mDownmixConfig.outputCfg.mask = mDownmixConfig.inputCfg.mask;
+
+     mInFrameSize =
+             audio_bytes_per_sample(format) * audio_channel_count_from_out_mask(inputChannelMask);
+     mOutFrameSize =
+             audio_bytes_per_sample(format) * audio_channel_count_from_out_mask(outputChannelMask);
+     status_t status;
+     status = EffectBufferHalInterface::mirror(
+             nullptr, mInFrameSize * bufferFrameCount, &mInBuffer);
+     if (status != 0) {
+         ALOGE("DownmixerBufferProvider() error %d while creating input buffer", status);
+         mDownmixInterface.clear();
+         mEffectsFactory.clear();
+         return;
+     }
+     status = EffectBufferHalInterface::mirror(
+             nullptr, mOutFrameSize * bufferFrameCount, &mOutBuffer);
+     if (status != 0) {
+         ALOGE("DownmixerBufferProvider() error %d while creating output buffer", status);
+         mInBuffer.clear();
+         mDownmixInterface.clear();
+         mEffectsFactory.clear();
+         return;
+     }
+     mDownmixInterface->setInBuffer(mInBuffer);
+     mDownmixInterface->setOutBuffer(mOutBuffer);
+
+     int cmdStatus;
+     uint32_t replySize = sizeof(int);
+
+     // Configure downmixer
+     status = mDownmixInterface->command(
+             EFFECT_CMD_SET_CONFIG /*cmdCode*/, sizeof(effect_config_t) /*cmdSize*/,
+             &mDownmixConfig /*pCmdData*/,
+             &replySize, &cmdStatus /*pReplyData*/);
+     if (status != 0 || cmdStatus != 0) {
+         ALOGE("DownmixerBufferProvider() error %d cmdStatus %d while configuring downmixer",
+                 status, cmdStatus);
+         mOutBuffer.clear();
+         mInBuffer.clear();
+         mDownmixInterface.clear();
+         mEffectsFactory.clear();
+         return;
+     }
+
+     // Enable downmixer
+     replySize = sizeof(int);
+     status = mDownmixInterface->command(
+             EFFECT_CMD_ENABLE /*cmdCode*/, 0 /*cmdSize*/, NULL /*pCmdData*/,
+             &replySize, &cmdStatus /*pReplyData*/);
+     if (status != 0 || cmdStatus != 0) {
+         ALOGE("DownmixerBufferProvider() error %d cmdStatus %d while enabling downmixer",
+                 status, cmdStatus);
+         mOutBuffer.clear();
+         mInBuffer.clear();
+         mDownmixInterface.clear();
+         mEffectsFactory.clear();
+         return;
+     }
+
+     // Set downmix type
+     // parameter size rounded for padding on 32bit boundary
+     const int psizePadded = ((sizeof(downmix_params_t) - 1)/sizeof(int) + 1) * sizeof(int);
+     const int downmixParamSize =
+             sizeof(effect_param_t) + psizePadded + sizeof(downmix_type_t);
+     effect_param_t * const param = (effect_param_t *) malloc(downmixParamSize);
+     param->psize = sizeof(downmix_params_t);
+     const downmix_params_t downmixParam = DOWNMIX_PARAM_TYPE;
+     memcpy(param->data, &downmixParam, param->psize);
+     const downmix_type_t downmixType = DOWNMIX_TYPE_FOLD;
+     param->vsize = sizeof(downmix_type_t);
+     memcpy(param->data + psizePadded, &downmixType, param->vsize);
+     replySize = sizeof(int);
+     status = mDownmixInterface->command(
+             EFFECT_CMD_SET_PARAM /* cmdCode */, downmixParamSize /* cmdSize */,
+             param /*pCmdData*/, &replySize, &cmdStatus /*pReplyData*/);
+     free(param);
+     if (status != 0 || cmdStatus != 0) {
+         ALOGE("DownmixerBufferProvider() error %d cmdStatus %d while setting downmix type",
+                 status, cmdStatus);
+         mOutBuffer.clear();
+         mInBuffer.clear();
+         mDownmixInterface.clear();
+         mEffectsFactory.clear();
+         return;
+     }
+     ALOGV("DownmixerBufferProvider() downmix type set to %d", (int) downmixType);
+}
+
+DownmixerBufferProvider::~DownmixerBufferProvider()
+{
+    ALOGV("~DownmixerBufferProvider (%p)", this);
+    if (mDownmixInterface != 0) {
+        mDownmixInterface->close();
+    }
+}
+
+void DownmixerBufferProvider::copyFrames(void *dst, const void *src, size_t frames)
+{
+    mInBuffer->setExternalData(const_cast<void*>(src));
+    mInBuffer->setFrameCount(frames);
+    mInBuffer->update(mInFrameSize * frames);
+    mOutBuffer->setFrameCount(frames);
+    mOutBuffer->setExternalData(dst);
+    if (dst != src) {
+        // Downmix may be accumulating, need to populate the output buffer
+        // with the dst data.
+        mOutBuffer->update(mOutFrameSize * frames);
+    }
+    // may be in-place if src == dst.
+    status_t res = mDownmixInterface->process();
+    if (res == OK) {
+        mOutBuffer->commit(mOutFrameSize * frames);
+    } else {
+        ALOGE("DownmixBufferProvider error %d", res);
+    }
+}
+
+/* call once in a pthread_once handler. */
+/*static*/ status_t DownmixerBufferProvider::init()
+{
+    // find multichannel downmix effect if we have to play multichannel content
+    sp<EffectsFactoryHalInterface> effectsFactory = EffectsFactoryHalInterface::create();
+    if (effectsFactory == 0) {
+        ALOGE("AudioMixer() error: could not obtain the effects factory");
+        return NO_INIT;
+    }
+    uint32_t numEffects = 0;
+    int ret = effectsFactory->queryNumberEffects(&numEffects);
+    if (ret != 0) {
+        ALOGE("AudioMixer() error %d querying number of effects", ret);
+        return NO_INIT;
+    }
+    ALOGV("EffectQueryNumberEffects() numEffects=%d", numEffects);
+
+    for (uint32_t i = 0 ; i < numEffects ; i++) {
+        if (effectsFactory->getDescriptor(i, &sDwnmFxDesc) == 0) {
+            ALOGV("effect %d is called %s", i, sDwnmFxDesc.name);
+            if (memcmp(&sDwnmFxDesc.type, EFFECT_UIID_DOWNMIX, sizeof(effect_uuid_t)) == 0) {
+                ALOGI("found effect \"%s\" from %s",
+                        sDwnmFxDesc.name, sDwnmFxDesc.implementor);
+                sIsMultichannelCapable = true;
+                break;
+            }
+        }
+    }
+    ALOGW_IF(!sIsMultichannelCapable, "unable to find downmix effect");
+    return NO_INIT;
+}
+
+/*static*/ bool DownmixerBufferProvider::sIsMultichannelCapable = false;
+/*static*/ effect_descriptor_t DownmixerBufferProvider::sDwnmFxDesc;
+
+RemixBufferProvider::RemixBufferProvider(audio_channel_mask_t inputChannelMask,
+        audio_channel_mask_t outputChannelMask, audio_format_t format,
+        size_t bufferFrameCount) :
+        CopyBufferProvider(
+                audio_bytes_per_sample(format)
+                    * audio_channel_count_from_out_mask(inputChannelMask),
+                audio_bytes_per_sample(format)
+                    * audio_channel_count_from_out_mask(outputChannelMask),
+                bufferFrameCount),
+        mFormat(format),
+        mSampleSize(audio_bytes_per_sample(format)),
+        mInputChannels(audio_channel_count_from_out_mask(inputChannelMask)),
+        mOutputChannels(audio_channel_count_from_out_mask(outputChannelMask))
+{
+    ALOGV("RemixBufferProvider(%p)(%#x, %#x, %#x) %zu %zu",
+            this, format, inputChannelMask, outputChannelMask,
+            mInputChannels, mOutputChannels);
+    (void) memcpy_by_index_array_initialization_from_channel_mask(
+            mIdxAry, ARRAY_SIZE(mIdxAry), outputChannelMask, inputChannelMask);
+}
+
+void RemixBufferProvider::copyFrames(void *dst, const void *src, size_t frames)
+{
+    memcpy_by_index_array(dst, mOutputChannels,
+            src, mInputChannels, mIdxAry, mSampleSize, frames);
+}
+
+ReformatBufferProvider::ReformatBufferProvider(int32_t channelCount,
+        audio_format_t inputFormat, audio_format_t outputFormat,
+        size_t bufferFrameCount) :
+        CopyBufferProvider(
+                channelCount * audio_bytes_per_sample(inputFormat),
+                channelCount * audio_bytes_per_sample(outputFormat),
+                bufferFrameCount),
+        mChannelCount(channelCount),
+        mInputFormat(inputFormat),
+        mOutputFormat(outputFormat)
+{
+    ALOGV("ReformatBufferProvider(%p)(%u, %#x, %#x)",
+            this, channelCount, inputFormat, outputFormat);
+}
+
+void ReformatBufferProvider::copyFrames(void *dst, const void *src, size_t frames)
+{
+    memcpy_by_audio_format(dst, mOutputFormat, src, mInputFormat, frames * mChannelCount);
+}
+
+TimestretchBufferProvider::TimestretchBufferProvider(int32_t channelCount,
+        audio_format_t format, uint32_t sampleRate, const AudioPlaybackRate &playbackRate) :
+        mChannelCount(channelCount),
+        mFormat(format),
+        mSampleRate(sampleRate),
+        mFrameSize(channelCount * audio_bytes_per_sample(format)),
+        mLocalBufferFrameCount(0),
+        mLocalBufferData(NULL),
+        mRemaining(0),
+        mSonicStream(sonicCreateStream(sampleRate, mChannelCount)),
+        mFallbackFailErrorShown(false),
+        mAudioPlaybackRateValid(false)
+{
+    LOG_ALWAYS_FATAL_IF(mSonicStream == NULL,
+            "TimestretchBufferProvider can't allocate Sonic stream");
+
+    setPlaybackRate(playbackRate);
+    ALOGV("TimestretchBufferProvider(%p)(%u, %#x, %u %f %f %d %d)",
+            this, channelCount, format, sampleRate, playbackRate.mSpeed,
+            playbackRate.mPitch, playbackRate.mStretchMode, playbackRate.mFallbackMode);
+    mBuffer.frameCount = 0;
+}
+
+TimestretchBufferProvider::~TimestretchBufferProvider()
+{
+    ALOGV("~TimestretchBufferProvider(%p)", this);
+    sonicDestroyStream(mSonicStream);
+    if (mBuffer.frameCount != 0) {
+        mTrackBufferProvider->releaseBuffer(&mBuffer);
+    }
+    free(mLocalBufferData);
+}
+
+status_t TimestretchBufferProvider::getNextBuffer(
+        AudioBufferProvider::Buffer *pBuffer)
+{
+    ALOGV("TimestretchBufferProvider(%p)::getNextBuffer(%p (%zu))",
+            this, pBuffer, pBuffer->frameCount);
+
+    // BYPASS
+    //return mTrackBufferProvider->getNextBuffer(pBuffer);
+
+    // check if previously processed data is sufficient.
+    if (pBuffer->frameCount <= mRemaining) {
+        ALOGV("previous sufficient");
+        pBuffer->raw = mLocalBufferData;
+        return OK;
+    }
+
+    // do we need to resize our buffer?
+    if (pBuffer->frameCount > mLocalBufferFrameCount) {
+        void *newmem;
+        if (posix_memalign(&newmem, 32, pBuffer->frameCount * mFrameSize) == OK) {
+            if (mRemaining != 0) {
+                memcpy(newmem, mLocalBufferData, mRemaining * mFrameSize);
+            }
+            free(mLocalBufferData);
+            mLocalBufferData = newmem;
+            mLocalBufferFrameCount = pBuffer->frameCount;
+        }
+    }
+
+    // need to fetch more data
+    const size_t outputDesired = pBuffer->frameCount - mRemaining;
+    size_t dstAvailable;
+    do {
+        mBuffer.frameCount = mPlaybackRate.mSpeed == AUDIO_TIMESTRETCH_SPEED_NORMAL
+                ? outputDesired : outputDesired * mPlaybackRate.mSpeed + 1;
+
+        status_t res = mTrackBufferProvider->getNextBuffer(&mBuffer);
+
+        ALOG_ASSERT(res == OK || mBuffer.frameCount == 0);
+        if (res != OK || mBuffer.frameCount == 0) { // not needed by API spec, but to be safe.
+            ALOGV("upstream provider cannot provide data");
+            if (mRemaining == 0) {
+                pBuffer->raw = NULL;
+                pBuffer->frameCount = 0;
+                return res;
+            } else { // return partial count
+                pBuffer->raw = mLocalBufferData;
+                pBuffer->frameCount = mRemaining;
+                return OK;
+            }
+        }
+
+        // time-stretch the data
+        dstAvailable = min(mLocalBufferFrameCount - mRemaining, outputDesired);
+        size_t srcAvailable = mBuffer.frameCount;
+        processFrames((uint8_t*)mLocalBufferData + mRemaining * mFrameSize, &dstAvailable,
+                mBuffer.raw, &srcAvailable);
+
+        // release all data consumed
+        mBuffer.frameCount = srcAvailable;
+        mTrackBufferProvider->releaseBuffer(&mBuffer);
+    } while (dstAvailable == 0); // try until we get output data or upstream provider fails.
+
+    // update buffer vars with the actual data processed and return with buffer
+    mRemaining += dstAvailable;
+
+    pBuffer->raw = mLocalBufferData;
+    pBuffer->frameCount = mRemaining;
+
+    return OK;
+}
+
+void TimestretchBufferProvider::releaseBuffer(AudioBufferProvider::Buffer *pBuffer)
+{
+    ALOGV("TimestretchBufferProvider(%p)::releaseBuffer(%p (%zu))",
+       this, pBuffer, pBuffer->frameCount);
+
+    // BYPASS
+    //return mTrackBufferProvider->releaseBuffer(pBuffer);
+
+    // LOG_ALWAYS_FATAL_IF(pBuffer->frameCount == 0, "Invalid framecount");
+    if (pBuffer->frameCount < mRemaining) {
+        memcpy(mLocalBufferData,
+                (uint8_t*)mLocalBufferData + pBuffer->frameCount * mFrameSize,
+                (mRemaining - pBuffer->frameCount) * mFrameSize);
+        mRemaining -= pBuffer->frameCount;
+    } else if (pBuffer->frameCount == mRemaining) {
+        mRemaining = 0;
+    } else {
+        LOG_ALWAYS_FATAL("Releasing more frames(%zu) than available(%zu)",
+                pBuffer->frameCount, mRemaining);
+    }
+
+    pBuffer->raw = NULL;
+    pBuffer->frameCount = 0;
+}
+
+void TimestretchBufferProvider::reset()
+{
+    mRemaining = 0;
+}
+
+status_t TimestretchBufferProvider::setPlaybackRate(const AudioPlaybackRate &playbackRate)
+{
+    mPlaybackRate = playbackRate;
+    mFallbackFailErrorShown = false;
+    sonicSetSpeed(mSonicStream, mPlaybackRate.mSpeed);
+    //TODO: pitch is ignored for now
+    //TODO: optimize: if parameters are the same, don't do any extra computation.
+
+    mAudioPlaybackRateValid = isAudioPlaybackRateValid(mPlaybackRate);
+    return OK;
+}
+
+void TimestretchBufferProvider::processFrames(void *dstBuffer, size_t *dstFrames,
+        const void *srcBuffer, size_t *srcFrames)
+{
+    ALOGV("processFrames(%zu %zu)  remaining(%zu)", *dstFrames, *srcFrames, mRemaining);
+    // Note dstFrames is the required number of frames.
+
+    if (!mAudioPlaybackRateValid) {
+        //fallback mode
+        // Ensure consumption from src is as expected.
+        // TODO: add logic to track "very accurate" consumption related to speed, original sampling
+        // rate, actual frames processed.
+
+        const size_t targetSrc = *dstFrames * mPlaybackRate.mSpeed;
+        if (*srcFrames < targetSrc) { // limit dst frames to that possible
+            *dstFrames = *srcFrames / mPlaybackRate.mSpeed;
+        } else if (*srcFrames > targetSrc + 1) {
+            *srcFrames = targetSrc + 1;
+        }
+        if (*dstFrames > 0) {
+            switch(mPlaybackRate.mFallbackMode) {
+            case AUDIO_TIMESTRETCH_FALLBACK_CUT_REPEAT:
+                if (*dstFrames <= *srcFrames) {
+                      size_t copySize = mFrameSize * *dstFrames;
+                      memcpy(dstBuffer, srcBuffer, copySize);
+                  } else {
+                      // cyclically repeat the source.
+                      for (size_t count = 0; count < *dstFrames; count += *srcFrames) {
+                          size_t remaining = min(*srcFrames, *dstFrames - count);
+                          memcpy((uint8_t*)dstBuffer + mFrameSize * count,
+                                  srcBuffer, mFrameSize * remaining);
+                      }
+                  }
+                break;
+            case AUDIO_TIMESTRETCH_FALLBACK_DEFAULT:
+            case AUDIO_TIMESTRETCH_FALLBACK_MUTE:
+                memset(dstBuffer,0, mFrameSize * *dstFrames);
+                break;
+            case AUDIO_TIMESTRETCH_FALLBACK_FAIL:
+            default:
+                if(!mFallbackFailErrorShown) {
+                    ALOGE("invalid parameters in TimestretchBufferProvider fallbackMode:%d",
+                            mPlaybackRate.mFallbackMode);
+                    mFallbackFailErrorShown = true;
+                }
+                break;
+            }
+        }
+    } else {
+        switch (mFormat) {
+        case AUDIO_FORMAT_PCM_FLOAT:
+            if (sonicWriteFloatToStream(mSonicStream, (float*)srcBuffer, *srcFrames) != 1) {
+                ALOGE("sonicWriteFloatToStream cannot realloc");
+                *srcFrames = 0; // cannot consume all of srcBuffer
+            }
+            *dstFrames = sonicReadFloatFromStream(mSonicStream, (float*)dstBuffer, *dstFrames);
+            break;
+        case AUDIO_FORMAT_PCM_16_BIT:
+            if (sonicWriteShortToStream(mSonicStream, (short*)srcBuffer, *srcFrames) != 1) {
+                ALOGE("sonicWriteShortToStream cannot realloc");
+                *srcFrames = 0; // cannot consume all of srcBuffer
+            }
+            *dstFrames = sonicReadShortFromStream(mSonicStream, (short*)dstBuffer, *dstFrames);
+            break;
+        default:
+            // could also be caught on construction
+            LOG_ALWAYS_FATAL("invalid format %#x for TimestretchBufferProvider", mFormat);
+        }
+    }
+}
+// ----------------------------------------------------------------------------
+} // namespace android
diff --git a/media/libaudioprocessing/RecordBufferConverter.cpp b/media/libaudioprocessing/RecordBufferConverter.cpp
new file mode 100644
index 0000000..54151f5
--- /dev/null
+++ b/media/libaudioprocessing/RecordBufferConverter.cpp
@@ -0,0 +1,294 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "RecordBufferConverter"
+//#define LOG_NDEBUG 0
+
+#include <audio_utils/primitives.h>
+#include <audio_utils/format.h>
+#include <media/AudioMixer.h>  // for UNITY_GAIN_FLOAT
+#include <media/AudioResampler.h>
+#include <media/BufferProviders.h>
+#include <media/RecordBufferConverter.h>
+#include <utils/Log.h>
+
+#ifndef ARRAY_SIZE
+#define ARRAY_SIZE(x) (sizeof(x)/sizeof((x)[0]))
+#endif
+
+template <typename T>
+static inline T max(const T& a, const T& b)
+{
+    return a > b ? a : b;
+}
+
+namespace android {
+
+RecordBufferConverter::RecordBufferConverter(
+        audio_channel_mask_t srcChannelMask, audio_format_t srcFormat,
+        uint32_t srcSampleRate,
+        audio_channel_mask_t dstChannelMask, audio_format_t dstFormat,
+        uint32_t dstSampleRate) :
+            mSrcChannelMask(AUDIO_CHANNEL_INVALID), // updateParameters will set following vars
+            // mSrcFormat
+            // mSrcSampleRate
+            // mDstChannelMask
+            // mDstFormat
+            // mDstSampleRate
+            // mSrcChannelCount
+            // mDstChannelCount
+            // mDstFrameSize
+            mBuf(NULL), mBufFrames(0), mBufFrameSize(0),
+            mResampler(NULL),
+            mIsLegacyDownmix(false),
+            mIsLegacyUpmix(false),
+            mRequiresFloat(false),
+            mInputConverterProvider(NULL)
+{
+    (void)updateParameters(srcChannelMask, srcFormat, srcSampleRate,
+            dstChannelMask, dstFormat, dstSampleRate);
+}
+
+RecordBufferConverter::~RecordBufferConverter() {
+    free(mBuf);
+    delete mResampler;
+    delete mInputConverterProvider;
+}
+
+void RecordBufferConverter::reset() {
+    if (mResampler != NULL) {
+        mResampler->reset();
+    }
+}
+
+size_t RecordBufferConverter::convert(void *dst,
+        AudioBufferProvider *provider, size_t frames)
+{
+    if (mInputConverterProvider != NULL) {
+        mInputConverterProvider->setBufferProvider(provider);
+        provider = mInputConverterProvider;
+    }
+
+    if (mResampler == NULL) {
+        ALOGV("NO RESAMPLING sampleRate:%u mSrcFormat:%#x mDstFormat:%#x",
+                mSrcSampleRate, mSrcFormat, mDstFormat);
+
+        AudioBufferProvider::Buffer buffer;
+        for (size_t i = frames; i > 0; ) {
+            buffer.frameCount = i;
+            status_t status = provider->getNextBuffer(&buffer);
+            if (status != OK || buffer.frameCount == 0) {
+                frames -= i; // cannot fill request.
+                break;
+            }
+            // format convert to destination buffer
+            convertNoResampler(dst, buffer.raw, buffer.frameCount);
+
+            dst = (int8_t*)dst + buffer.frameCount * mDstFrameSize;
+            i -= buffer.frameCount;
+            provider->releaseBuffer(&buffer);
+        }
+    } else {
+         ALOGV("RESAMPLING mSrcSampleRate:%u mDstSampleRate:%u mSrcFormat:%#x mDstFormat:%#x",
+                 mSrcSampleRate, mDstSampleRate, mSrcFormat, mDstFormat);
+
+         // reallocate buffer if needed
+         if (mBufFrameSize != 0 && mBufFrames < frames) {
+             free(mBuf);
+             mBufFrames = frames;
+             (void)posix_memalign(&mBuf, 32, mBufFrames * mBufFrameSize);
+         }
+        // resampler accumulates, but we only have one source track
+        memset(mBuf, 0, frames * mBufFrameSize);
+        frames = mResampler->resample((int32_t*)mBuf, frames, provider);
+        // format convert to destination buffer
+        convertResampler(dst, mBuf, frames);
+    }
+    return frames;
+}
+
+status_t RecordBufferConverter::updateParameters(
+        audio_channel_mask_t srcChannelMask, audio_format_t srcFormat,
+        uint32_t srcSampleRate,
+        audio_channel_mask_t dstChannelMask, audio_format_t dstFormat,
+        uint32_t dstSampleRate)
+{
+    // quick evaluation if there is any change.
+    if (mSrcFormat == srcFormat
+            && mSrcChannelMask == srcChannelMask
+            && mSrcSampleRate == srcSampleRate
+            && mDstFormat == dstFormat
+            && mDstChannelMask == dstChannelMask
+            && mDstSampleRate == dstSampleRate) {
+        return NO_ERROR;
+    }
+
+    ALOGV("RecordBufferConverter updateParameters srcMask:%#x dstMask:%#x"
+            "  srcFormat:%#x dstFormat:%#x  srcRate:%u dstRate:%u",
+            srcChannelMask, dstChannelMask, srcFormat, dstFormat, srcSampleRate, dstSampleRate);
+    const bool valid =
+            audio_is_input_channel(srcChannelMask)
+            && audio_is_input_channel(dstChannelMask)
+            && audio_is_valid_format(srcFormat) && audio_is_linear_pcm(srcFormat)
+            && audio_is_valid_format(dstFormat) && audio_is_linear_pcm(dstFormat)
+            && (srcSampleRate <= dstSampleRate * AUDIO_RESAMPLER_DOWN_RATIO_MAX)
+            ; // no upsampling checks for now
+    if (!valid) {
+        return BAD_VALUE;
+    }
+
+    mSrcFormat = srcFormat;
+    mSrcChannelMask = srcChannelMask;
+    mSrcSampleRate = srcSampleRate;
+    mDstFormat = dstFormat;
+    mDstChannelMask = dstChannelMask;
+    mDstSampleRate = dstSampleRate;
+
+    // compute derived parameters
+    mSrcChannelCount = audio_channel_count_from_in_mask(srcChannelMask);
+    mDstChannelCount = audio_channel_count_from_in_mask(dstChannelMask);
+    mDstFrameSize = mDstChannelCount * audio_bytes_per_sample(mDstFormat);
+
+    // do we need to resample?
+    delete mResampler;
+    mResampler = NULL;
+    if (mSrcSampleRate != mDstSampleRate) {
+        mResampler = AudioResampler::create(AUDIO_FORMAT_PCM_FLOAT,
+                mSrcChannelCount, mDstSampleRate);
+        mResampler->setSampleRate(mSrcSampleRate);
+        mResampler->setVolume(AudioMixer::UNITY_GAIN_FLOAT, AudioMixer::UNITY_GAIN_FLOAT);
+    }
+
+    // are we running legacy channel conversion modes?
+    mIsLegacyDownmix = (mSrcChannelMask == AUDIO_CHANNEL_IN_STEREO
+                            || mSrcChannelMask == AUDIO_CHANNEL_IN_FRONT_BACK)
+                   && mDstChannelMask == AUDIO_CHANNEL_IN_MONO;
+    mIsLegacyUpmix = mSrcChannelMask == AUDIO_CHANNEL_IN_MONO
+                   && (mDstChannelMask == AUDIO_CHANNEL_IN_STEREO
+                            || mDstChannelMask == AUDIO_CHANNEL_IN_FRONT_BACK);
+
+    // do we need to process in float?
+    mRequiresFloat = mResampler != NULL || mIsLegacyDownmix || mIsLegacyUpmix;
+
+    // do we need a staging buffer to convert for destination (we can still optimize this)?
+    // we use mBufFrameSize > 0 to indicate both frame size as well as buffer necessity
+    if (mResampler != NULL) {
+        mBufFrameSize = max(mSrcChannelCount, (uint32_t)FCC_2)
+                * audio_bytes_per_sample(AUDIO_FORMAT_PCM_FLOAT);
+    } else if (mIsLegacyUpmix || mIsLegacyDownmix) { // legacy modes always float
+        mBufFrameSize = mDstChannelCount * audio_bytes_per_sample(AUDIO_FORMAT_PCM_FLOAT);
+    } else if (mSrcChannelMask != mDstChannelMask && mDstFormat != mSrcFormat) {
+        mBufFrameSize = mDstChannelCount * audio_bytes_per_sample(mSrcFormat);
+    } else {
+        mBufFrameSize = 0;
+    }
+    mBufFrames = 0; // force the buffer to be resized.
+
+    // do we need an input converter buffer provider to give us float?
+    delete mInputConverterProvider;
+    mInputConverterProvider = NULL;
+    if (mRequiresFloat && mSrcFormat != AUDIO_FORMAT_PCM_FLOAT) {
+        mInputConverterProvider = new ReformatBufferProvider(
+                audio_channel_count_from_in_mask(mSrcChannelMask),
+                mSrcFormat,
+                AUDIO_FORMAT_PCM_FLOAT,
+                256 /* provider buffer frame count */);
+    }
+
+    // do we need a remixer to do channel mask conversion
+    if (!mIsLegacyDownmix && !mIsLegacyUpmix && mSrcChannelMask != mDstChannelMask) {
+        (void) memcpy_by_index_array_initialization_from_channel_mask(
+                mIdxAry, ARRAY_SIZE(mIdxAry), mDstChannelMask, mSrcChannelMask);
+    }
+    return NO_ERROR;
+}
+
+void RecordBufferConverter::convertNoResampler(
+        void *dst, const void *src, size_t frames)
+{
+    // src is native type unless there is legacy upmix or downmix, whereupon it is float.
+    if (mBufFrameSize != 0 && mBufFrames < frames) {
+        free(mBuf);
+        mBufFrames = frames;
+        (void)posix_memalign(&mBuf, 32, mBufFrames * mBufFrameSize);
+    }
+    // do we need to do legacy upmix and downmix?
+    if (mIsLegacyUpmix || mIsLegacyDownmix) {
+        void *dstBuf = mBuf != NULL ? mBuf : dst;
+        if (mIsLegacyUpmix) {
+            upmix_to_stereo_float_from_mono_float((float *)dstBuf,
+                    (const float *)src, frames);
+        } else /*mIsLegacyDownmix */ {
+            downmix_to_mono_float_from_stereo_float((float *)dstBuf,
+                    (const float *)src, frames);
+        }
+        if (mBuf != NULL) {
+            memcpy_by_audio_format(dst, mDstFormat, mBuf, AUDIO_FORMAT_PCM_FLOAT,
+                    frames * mDstChannelCount);
+        }
+        return;
+    }
+    // do we need to do channel mask conversion?
+    if (mSrcChannelMask != mDstChannelMask) {
+        void *dstBuf = mBuf != NULL ? mBuf : dst;
+        memcpy_by_index_array(dstBuf, mDstChannelCount,
+                src, mSrcChannelCount, mIdxAry, audio_bytes_per_sample(mSrcFormat), frames);
+        if (dstBuf == dst) {
+            return; // format is the same
+        }
+    }
+    // convert to destination buffer
+    const void *convertBuf = mBuf != NULL ? mBuf : src;
+    memcpy_by_audio_format(dst, mDstFormat, convertBuf, mSrcFormat,
+            frames * mDstChannelCount);
+}
+
+void RecordBufferConverter::convertResampler(
+        void *dst, /*not-a-const*/ void *src, size_t frames)
+{
+    // src buffer format is ALWAYS float when entering this routine
+    if (mIsLegacyUpmix) {
+        ; // mono to stereo already handled by resampler
+    } else if (mIsLegacyDownmix
+            || (mSrcChannelMask == mDstChannelMask && mSrcChannelCount == 1)) {
+        // the resampler outputs stereo for mono input channel (a feature?)
+        // must convert to mono
+        downmix_to_mono_float_from_stereo_float((float *)src,
+                (const float *)src, frames);
+    } else if (mSrcChannelMask != mDstChannelMask) {
+        // convert to mono channel again for channel mask conversion (could be skipped
+        // with further optimization).
+        if (mSrcChannelCount == 1) {
+            downmix_to_mono_float_from_stereo_float((float *)src,
+                (const float *)src, frames);
+        }
+        // convert to destination format (in place, OK as float is larger than other types)
+        if (mDstFormat != AUDIO_FORMAT_PCM_FLOAT) {
+            memcpy_by_audio_format(src, mDstFormat, src, AUDIO_FORMAT_PCM_FLOAT,
+                    frames * mSrcChannelCount);
+        }
+        // channel convert and save to dst
+        memcpy_by_index_array(dst, mDstChannelCount,
+                src, mSrcChannelCount, mIdxAry, audio_bytes_per_sample(mDstFormat), frames);
+        return;
+    }
+    // convert to destination format and save to dst
+    memcpy_by_audio_format(dst, mDstFormat, src, AUDIO_FORMAT_PCM_FLOAT,
+            frames * mDstChannelCount);
+}
+
+// ----------------------------------------------------------------------------
+} // namespace android
diff --git a/services/audioflinger/audio-resampler/Android.mk b/media/libaudioprocessing/audio-resampler/Android.mk
similarity index 100%
rename from services/audioflinger/audio-resampler/Android.mk
rename to media/libaudioprocessing/audio-resampler/Android.mk
diff --git a/services/audioflinger/audio-resampler/AudioResamplerCoefficients.cpp b/media/libaudioprocessing/audio-resampler/AudioResamplerCoefficients.cpp
similarity index 100%
rename from services/audioflinger/audio-resampler/AudioResamplerCoefficients.cpp
rename to media/libaudioprocessing/audio-resampler/AudioResamplerCoefficients.cpp
diff --git a/services/audioflinger/audio-resampler/filter_coefficients.h b/media/libaudioprocessing/audio-resampler/filter_coefficients.h
similarity index 100%
rename from services/audioflinger/audio-resampler/filter_coefficients.h
rename to media/libaudioprocessing/audio-resampler/filter_coefficients.h
diff --git a/services/audioflinger/AudioResampler.h b/media/libaudioprocessing/include/AudioResampler.h
similarity index 100%
rename from services/audioflinger/AudioResampler.h
rename to media/libaudioprocessing/include/AudioResampler.h
diff --git a/include/media/AudioResamplerPublic.h b/media/libaudioprocessing/include/AudioResamplerPublic.h
similarity index 100%
rename from include/media/AudioResamplerPublic.h
rename to media/libaudioprocessing/include/AudioResamplerPublic.h
diff --git a/media/libaudioprocessing/tests/Android.mk b/media/libaudioprocessing/tests/Android.mk
new file mode 100644
index 0000000..23e1c3a
--- /dev/null
+++ b/media/libaudioprocessing/tests/Android.mk
@@ -0,0 +1,87 @@
+# Build the unit tests for libaudioprocessing
+
+LOCAL_PATH := $(call my-dir)
+
+#
+# resampler unit test
+#
+include $(CLEAR_VARS)
+
+LOCAL_SHARED_LIBRARIES := \
+    libaudioutils \
+    libaudioprocessing \
+    libcutils \
+    liblog \
+    libutils \
+
+LOCAL_C_INCLUDES := \
+    $(call include-path-for, audio-utils) \
+
+LOCAL_SRC_FILES := \
+    resampler_tests.cpp
+
+LOCAL_MODULE := resampler_tests
+
+LOCAL_MODULE_TAGS := tests
+
+LOCAL_CFLAGS := -Werror -Wall
+
+include $(BUILD_NATIVE_TEST)
+
+#
+# audio mixer test tool
+#
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES := \
+    test-mixer.cpp \
+
+LOCAL_C_INCLUDES := \
+    $(call include-path-for, audio-utils) \
+
+LOCAL_STATIC_LIBRARIES := \
+    libsndfile \
+
+LOCAL_SHARED_LIBRARIES := \
+    libaudioprocessing \
+    libaudioutils \
+    libcutils \
+    liblog \
+    libutils \
+
+LOCAL_MODULE := test-mixer
+
+LOCAL_MODULE_TAGS := optional
+
+LOCAL_CFLAGS := -Werror -Wall
+
+include $(BUILD_EXECUTABLE)
+
+#
+# build audio resampler test tool
+#
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES := \
+    test-resampler.cpp \
+
+LOCAL_C_INCLUDES := \
+    $(call include-path-for, audio-utils) \
+
+LOCAL_STATIC_LIBRARIES := \
+    libsndfile \
+
+LOCAL_SHARED_LIBRARIES := \
+    libaudioprocessing \
+    libaudioutils \
+    libcutils \
+    liblog \
+    libutils \
+
+LOCAL_MODULE := test-resampler
+
+LOCAL_MODULE_TAGS := optional
+
+LOCAL_CFLAGS := -Werror -Wall
+
+include $(BUILD_EXECUTABLE)
diff --git a/media/libaudioprocessing/tests/README b/media/libaudioprocessing/tests/README
new file mode 100644
index 0000000..ed7e2ed
--- /dev/null
+++ b/media/libaudioprocessing/tests/README
@@ -0,0 +1,13 @@
+For libsonic dependency:
+pushd $ANDROID_BUILD_TOP/external/sonic
+mm
+popd
+
+To build audio processing library:
+pushd ..
+Optionally uncomment USE_NEON=false in Android.mk
+mm
+popd
+
+Then build here:
+mm
diff --git a/media/libaudioprocessing/tests/build_and_run_all_unit_tests.sh b/media/libaudioprocessing/tests/build_and_run_all_unit_tests.sh
new file mode 100755
index 0000000..704d095
--- /dev/null
+++ b/media/libaudioprocessing/tests/build_and_run_all_unit_tests.sh
@@ -0,0 +1,24 @@
+#!/bin/bash
+
+if [ -z "$ANDROID_BUILD_TOP" ]; then
+    echo "Android build environment not set"
+    exit -1
+fi
+
+# ensure we have mm
+. $ANDROID_BUILD_TOP/build/envsetup.sh
+
+pushd $ANDROID_BUILD_TOP/frameworks/av/media/libaudioprocessing
+pwd
+mm
+
+echo "waiting for device"
+adb root && adb wait-for-device remount
+adb push $OUT/system/lib/libaudioresampler.so /system/lib
+adb push $OUT/system/lib64/libaudioresampler.so /system/lib64
+adb push $OUT/data/nativetest/resampler_tests/resampler_tests /data/nativetest/resampler_tests/resampler_tests
+adb push $OUT/data/nativetest64/resampler_tests/resampler_tests /data/nativetest64/resampler_tests/resampler_tests
+
+sh $ANDROID_BUILD_TOP/frameworks/av/media/libaudioprocessing/tests/run_all_unit_tests.sh
+
+popd
diff --git a/media/libaudioprocessing/tests/mixer_to_wav_tests.sh b/media/libaudioprocessing/tests/mixer_to_wav_tests.sh
new file mode 100755
index 0000000..72b02fc
--- /dev/null
+++ b/media/libaudioprocessing/tests/mixer_to_wav_tests.sh
@@ -0,0 +1,145 @@
+#!/bin/bash
+#
+# This script uses test-mixer to generate WAV files
+# for evaluation of the AudioMixer component.
+#
+# Sine and chirp signals are used for input because they
+# show up as clear lines, either horizontal or diagonal,
+# on a spectrogram. This means easy verification of multiple
+# track mixing.
+#
+# After execution, look for created subdirectories like
+# mixer_i_i
+# mixer_i_f
+# mixer_f_f
+#
+# Recommend using a program such as audacity to evaluate
+# the output WAV files, e.g.
+#
+# cd testdir
+# audacity *.wav
+#
+# Using Audacity:
+#
+# Under "Waveform" view mode you can zoom into the
+# start of the WAV file to verify proper ramping.
+#
+# Select "Spectrogram" to see verify the lines
+# (sine = horizontal, chirp = diagonal) which should
+# be clear (except for around the start as the volume
+# ramping causes spectral distortion).
+
+if [ -z "$ANDROID_BUILD_TOP" ]; then
+    echo "Android build environment not set"
+    exit -1
+fi
+
+# ensure we have mm
+. $ANDROID_BUILD_TOP/build/envsetup.sh
+
+pushd $ANDROID_BUILD_TOP/frameworks/av/media/libaudioprocessing
+
+# build
+pwd
+mm
+
+# send to device
+echo "waiting for device"
+adb root && adb wait-for-device remount
+adb push $OUT/system/lib/libaudioprocessing.so /system/lib
+adb push $OUT/system/lib64/libaudioprocessing.so /system/lib64
+adb push $OUT/system/bin/test-mixer /system/bin
+
+# createwav creates a series of WAV files testing various
+# mixer settings
+# $1 = flags
+# $2 = directory
+function createwav() {
+# create directory if it doesn't exist
+    if [ ! -d $2 ]; then
+        mkdir $2
+    fi
+
+# Test:
+# process__genericResampling with mixed integer and float track input
+# track__Resample / track__genericResample
+    adb shell test-mixer $1 -s 48000 \
+        -o /sdcard/tm48000grif.wav \
+        sine:2,4000,7520 chirp:2,9200 sine:1,3000,18000 \
+        sine:f,6,6000,19000  chirp:i,4,30000
+    adb pull /sdcard/tm48000grif.wav $2
+
+# Test:
+# process__genericResampling
+# track__Resample / track__genericResample
+    adb shell test-mixer $1 -s 48000 \
+        -o /sdcard/tm48000gr.wav \
+        sine:2,4000,7520 chirp:2,9200 sine:1,3000,18000 \
+        sine:6,6000,19000
+    adb pull /sdcard/tm48000gr.wav $2
+
+# Test:
+# process__genericResample
+# track__Resample / track__genericResample
+# track__NoResample / track__16BitsStereo / track__16BitsMono
+# Aux buffer
+    adb shell test-mixer $1 -c 5 -s 9307 \
+        -a /sdcard/aux9307gra.wav -o /sdcard/tm9307gra.wav \
+        sine:4,1000,3000 sine:1,2000,9307 chirp:3,9307
+    adb pull /sdcard/tm9307gra.wav $2
+    adb pull /sdcard/aux9307gra.wav $2
+
+# Test:
+# process__genericNoResampling
+# track__NoResample / track__16BitsStereo / track__16BitsMono
+    adb shell test-mixer $1 -s 32000 \
+        -o /sdcard/tm32000gnr.wav \
+        sine:2,1000,32000 chirp:2,32000  sine:1,3000,32000
+    adb pull /sdcard/tm32000gnr.wav $2
+
+# Test:
+# process__genericNoResampling
+# track__NoResample / track__16BitsStereo / track__16BitsMono
+# Aux buffer
+    adb shell test-mixer $1 -s 32000 \
+        -a /sdcard/aux32000gnra.wav -o /sdcard/tm32000gnra.wav \
+        sine:2,1000,32000 chirp:2,32000  sine:1,3000,32000
+    adb pull /sdcard/tm32000gnra.wav $2
+    adb pull /sdcard/aux32000gnra.wav $2
+
+# Test:
+# process__NoResampleOneTrack / process__OneTrack16BitsStereoNoResampling
+# Downmixer
+    adb shell test-mixer $1 -s 32000 \
+        -o /sdcard/tm32000nrot.wav \
+        sine:6,1000,32000
+    adb pull /sdcard/tm32000nrot.wav $2
+
+# Test:
+# process__NoResampleOneTrack / OneTrack16BitsStereoNoResampling
+# Aux buffer
+    adb shell test-mixer $1 -s 44100 \
+        -a /sdcard/aux44100nrota.wav -o /sdcard/tm44100nrota.wav \
+        sine:2,2000,44100
+    adb pull /sdcard/tm44100nrota.wav $2
+    adb pull /sdcard/aux44100nrota.wav $2
+}
+
+#
+# Call createwav to generate WAV files in various combinations
+#
+# i_i = integer input track, integer mixer output
+# f_f = float input track,   float mixer output
+# i_f = integer input track, float_mixer output
+#
+# If the mixer output is float, then the output WAV file is pcm float.
+#
+# TODO: create a "snr" like "diff" to automatically
+# compare files in these directories together.
+#
+
+createwav "" "tests/mixer_i_i"
+createwav "-f -m" "tests/mixer_f_f"
+createwav "-m" "tests/mixer_i_f"
+
+popd
diff --git a/media/libaudioprocessing/tests/resampler_tests.cpp b/media/libaudioprocessing/tests/resampler_tests.cpp
new file mode 100644
index 0000000..a23c000
--- /dev/null
+++ b/media/libaudioprocessing/tests/resampler_tests.cpp
@@ -0,0 +1,486 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "audioflinger_resampler_tests"
+
+#include <errno.h>
+#include <fcntl.h>
+#include <math.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <time.h>
+#include <unistd.h>
+
+#include <iostream>
+#include <utility>
+#include <vector>
+
+#include <gtest/gtest.h>
+#include <log/log.h>
+#include <media/AudioBufferProvider.h>
+
+#include <media/AudioResampler.h>
+#include "test_utils.h"
+
+template <typename T>
+static void printData(T *data, size_t size) {
+    const size_t stride = 8;
+    for (size_t i = 0; i < size; ) {
+        for (size_t j = 0; j < stride && i < size; ++j) {
+            std::cout << data[i++] << ' ';  // extra space before newline
+        }
+        std::cout << '\n'; // or endl
+    }
+}
+
+void resample(int channels, void *output,
+        size_t outputFrames, const std::vector<size_t> &outputIncr,
+        android::AudioBufferProvider *provider, android::AudioResampler *resampler)
+{
+    for (size_t i = 0, j = 0; i < outputFrames; ) {
+        size_t thisFrames = outputIncr[j++];
+        if (j >= outputIncr.size()) {
+            j = 0;
+        }
+        if (thisFrames == 0 || thisFrames > outputFrames - i) {
+            thisFrames = outputFrames - i;
+        }
+        size_t framesResampled = resampler->resample(
+                (int32_t*) output + channels*i, thisFrames, provider);
+        // we should have enough buffer space, so there is no short count.
+        ASSERT_EQ(thisFrames, framesResampled);
+        i += thisFrames;
+    }
+}
+
+void buffercmp(const void *reference, const void *test,
+        size_t outputFrameSize, size_t outputFrames)
+{
+    for (size_t i = 0; i < outputFrames; ++i) {
+        int check = memcmp((const char*)reference + i * outputFrameSize,
+                (const char*)test + i * outputFrameSize, outputFrameSize);
+        if (check) {
+            ALOGE("Failure at frame %zu", i);
+            ASSERT_EQ(check, 0); /* fails */
+        }
+    }
+}
+
+void testBufferIncrement(size_t channels, bool useFloat,
+        unsigned inputFreq, unsigned outputFreq,
+        enum android::AudioResampler::src_quality quality)
+{
+    const audio_format_t format = useFloat ? AUDIO_FORMAT_PCM_FLOAT : AUDIO_FORMAT_PCM_16_BIT;
+    // create the provider
+    std::vector<int> inputIncr;
+    SignalProvider provider;
+    if (useFloat) {
+        provider.setChirp<float>(channels,
+                0., outputFreq/2., outputFreq, outputFreq/2000.);
+    } else {
+        provider.setChirp<int16_t>(channels,
+                0., outputFreq/2., outputFreq, outputFreq/2000.);
+    }
+    provider.setIncr(inputIncr);
+
+    // calculate the output size
+    size_t outputFrames = ((int64_t) provider.getNumFrames() * outputFreq) / inputFreq;
+    size_t outputFrameSize = (channels == 1 ? 2 : channels) * (useFloat ? sizeof(float) : sizeof(int32_t));
+    size_t outputSize = outputFrameSize * outputFrames;
+    outputSize &= ~7;
+
+    // create the resampler
+    android::AudioResampler* resampler;
+
+    resampler = android::AudioResampler::create(format, channels, outputFreq, quality);
+    resampler->setSampleRate(inputFreq);
+    resampler->setVolume(android::AudioResampler::UNITY_GAIN_FLOAT,
+            android::AudioResampler::UNITY_GAIN_FLOAT);
+
+    // set up the reference run
+    std::vector<size_t> refIncr;
+    refIncr.push_back(outputFrames);
+    void* reference = calloc(outputFrames, outputFrameSize);
+    resample(channels, reference, outputFrames, refIncr, &provider, resampler);
+
+    provider.reset();
+
+#if 0
+    /* this test will fail - API interface issue: reset() does not clear internal buffers */
+    resampler->reset();
+#else
+    delete resampler;
+    resampler = android::AudioResampler::create(format, channels, outputFreq, quality);
+    resampler->setSampleRate(inputFreq);
+    resampler->setVolume(android::AudioResampler::UNITY_GAIN_FLOAT,
+            android::AudioResampler::UNITY_GAIN_FLOAT);
+#endif
+
+    // set up the test run
+    std::vector<size_t> outIncr;
+    outIncr.push_back(1);
+    outIncr.push_back(2);
+    outIncr.push_back(3);
+    void* test = calloc(outputFrames, outputFrameSize);
+    inputIncr.push_back(1);
+    inputIncr.push_back(3);
+    provider.setIncr(inputIncr);
+    resample(channels, test, outputFrames, outIncr, &provider, resampler);
+
+    // check
+    buffercmp(reference, test, outputFrameSize, outputFrames);
+
+    free(reference);
+    free(test);
+    delete resampler;
+}
+
+template <typename T>
+inline double sqr(T v)
+{
+    double dv = static_cast<double>(v);
+    return dv * dv;
+}
+
+template <typename T>
+double signalEnergy(T *start, T *end, unsigned stride)
+{
+    double accum = 0;
+
+    for (T *p = start; p < end; p += stride) {
+        accum += sqr(*p);
+    }
+    unsigned count = (end - start + stride - 1) / stride;
+    return accum / count;
+}
+
+// TI = resampler input type, int16_t or float
+// TO = resampler output type, int32_t or float
+template <typename TI, typename TO>
+void testStopbandDownconversion(size_t channels,
+        unsigned inputFreq, unsigned outputFreq,
+        unsigned passband, unsigned stopband,
+        enum android::AudioResampler::src_quality quality)
+{
+    // create the provider
+    std::vector<int> inputIncr;
+    SignalProvider provider;
+    provider.setChirp<TI>(channels,
+            0., inputFreq/2., inputFreq, inputFreq/2000.);
+    provider.setIncr(inputIncr);
+
+    // calculate the output size
+    size_t outputFrames = ((int64_t) provider.getNumFrames() * outputFreq) / inputFreq;
+    size_t outputFrameSize = (channels == 1 ? 2 : channels) * sizeof(TO);
+    size_t outputSize = outputFrameSize * outputFrames;
+    outputSize &= ~7;
+
+    // create the resampler
+    android::AudioResampler* resampler;
+
+    resampler = android::AudioResampler::create(
+            is_same<TI, int16_t>::value ? AUDIO_FORMAT_PCM_16_BIT : AUDIO_FORMAT_PCM_FLOAT,
+            channels, outputFreq, quality);
+    resampler->setSampleRate(inputFreq);
+    resampler->setVolume(android::AudioResampler::UNITY_GAIN_FLOAT,
+            android::AudioResampler::UNITY_GAIN_FLOAT);
+
+    // set up the reference run
+    std::vector<size_t> refIncr;
+    refIncr.push_back(outputFrames);
+    void* reference = calloc(outputFrames, outputFrameSize);
+    resample(channels, reference, outputFrames, refIncr, &provider, resampler);
+
+    TO *out = reinterpret_cast<TO *>(reference);
+
+    // check signal energy in passband
+    const unsigned passbandFrame = passband * outputFreq / 1000.;
+    const unsigned stopbandFrame = stopband * outputFreq / 1000.;
+
+    // check each channel separately
+    if (channels == 1) channels = 2; // workaround (mono duplicates output channel)
+
+    for (size_t i = 0; i < channels; ++i) {
+        double passbandEnergy = signalEnergy(out, out + passbandFrame * channels, channels);
+        double stopbandEnergy = signalEnergy(out + stopbandFrame * channels,
+                out + outputFrames * channels, channels);
+        double dbAtten = -10. * log10(stopbandEnergy / passbandEnergy);
+        ASSERT_GT(dbAtten, 60.);
+
+#if 0
+        // internal verification
+        printf("if:%d  of:%d  pbf:%d  sbf:%d  sbe: %f  pbe: %f  db: %.2f\n",
+                provider.getNumFrames(), outputFrames,
+                passbandFrame, stopbandFrame, stopbandEnergy, passbandEnergy, dbAtten);
+        for (size_t i = 0; i < 10; ++i) {
+            std::cout << out[i+passbandFrame*channels] << std::endl;
+        }
+        for (size_t i = 0; i < 10; ++i) {
+            std::cout << out[i+stopbandFrame*channels] << std::endl;
+        }
+#endif
+    }
+
+    free(reference);
+    delete resampler;
+}
+
+/* Buffer increment test
+ *
+ * We compare a reference output, where we consume and process the entire
+ * buffer at a time, and a test output, where we provide small chunks of input
+ * data and process small chunks of output (which may not be equivalent in size).
+ *
+ * Two subtests - fixed phase (3:2 down) and interpolated phase (147:320 up)
+ */
+TEST(audioflinger_resampler, bufferincrement_fixedphase) {
+    // all of these work
+    static const enum android::AudioResampler::src_quality kQualityArray[] = {
+            android::AudioResampler::LOW_QUALITY,
+            android::AudioResampler::MED_QUALITY,
+            android::AudioResampler::HIGH_QUALITY,
+            android::AudioResampler::VERY_HIGH_QUALITY,
+            android::AudioResampler::DYN_LOW_QUALITY,
+            android::AudioResampler::DYN_MED_QUALITY,
+            android::AudioResampler::DYN_HIGH_QUALITY,
+    };
+
+    for (size_t i = 0; i < ARRAY_SIZE(kQualityArray); ++i) {
+        testBufferIncrement(2, false, 48000, 32000, kQualityArray[i]);
+    }
+}
+
+TEST(audioflinger_resampler, bufferincrement_interpolatedphase) {
+    // all of these work except low quality
+    static const enum android::AudioResampler::src_quality kQualityArray[] = {
+//           android::AudioResampler::LOW_QUALITY,
+            android::AudioResampler::MED_QUALITY,
+            android::AudioResampler::HIGH_QUALITY,
+            android::AudioResampler::VERY_HIGH_QUALITY,
+            android::AudioResampler::DYN_LOW_QUALITY,
+            android::AudioResampler::DYN_MED_QUALITY,
+            android::AudioResampler::DYN_HIGH_QUALITY,
+    };
+
+    for (size_t i = 0; i < ARRAY_SIZE(kQualityArray); ++i) {
+        testBufferIncrement(2, false, 22050, 48000, kQualityArray[i]);
+    }
+}
+
+TEST(audioflinger_resampler, bufferincrement_fixedphase_multi) {
+    // only dynamic quality
+    static const enum android::AudioResampler::src_quality kQualityArray[] = {
+            android::AudioResampler::DYN_LOW_QUALITY,
+            android::AudioResampler::DYN_MED_QUALITY,
+            android::AudioResampler::DYN_HIGH_QUALITY,
+    };
+
+    for (size_t i = 0; i < ARRAY_SIZE(kQualityArray); ++i) {
+        testBufferIncrement(4, false, 48000, 32000, kQualityArray[i]);
+    }
+}
+
+TEST(audioflinger_resampler, bufferincrement_interpolatedphase_multi_float) {
+    // only dynamic quality
+    static const enum android::AudioResampler::src_quality kQualityArray[] = {
+            android::AudioResampler::DYN_LOW_QUALITY,
+            android::AudioResampler::DYN_MED_QUALITY,
+            android::AudioResampler::DYN_HIGH_QUALITY,
+    };
+
+    for (size_t i = 0; i < ARRAY_SIZE(kQualityArray); ++i) {
+        testBufferIncrement(8, true, 22050, 48000, kQualityArray[i]);
+    }
+}
+
+/* Simple aliasing test
+ *
+ * This checks stopband response of the chirp signal to make sure frequencies
+ * are properly suppressed.  It uses downsampling because the stopband can be
+ * clearly isolated by input frequencies exceeding the output sample rate (nyquist).
+ */
+TEST(audioflinger_resampler, stopbandresponse_integer) {
+    // not all of these may work (old resamplers fail on downsampling)
+    static const enum android::AudioResampler::src_quality kQualityArray[] = {
+            //android::AudioResampler::LOW_QUALITY,
+            //android::AudioResampler::MED_QUALITY,
+            //android::AudioResampler::HIGH_QUALITY,
+            //android::AudioResampler::VERY_HIGH_QUALITY,
+            android::AudioResampler::DYN_LOW_QUALITY,
+            android::AudioResampler::DYN_MED_QUALITY,
+            android::AudioResampler::DYN_HIGH_QUALITY,
+    };
+
+    // in this test we assume a maximum transition band between 12kHz and 20kHz.
+    // there must be at least 60dB relative attenuation between stopband and passband.
+    for (size_t i = 0; i < ARRAY_SIZE(kQualityArray); ++i) {
+        testStopbandDownconversion<int16_t, int32_t>(
+                2, 48000, 32000, 12000, 20000, kQualityArray[i]);
+    }
+
+    // in this test we assume a maximum transition band between 7kHz and 15kHz.
+    // there must be at least 60dB relative attenuation between stopband and passband.
+    // (the weird ratio triggers interpolative resampling)
+    for (size_t i = 0; i < ARRAY_SIZE(kQualityArray); ++i) {
+        testStopbandDownconversion<int16_t, int32_t>(
+                2, 48000, 22101, 7000, 15000, kQualityArray[i]);
+    }
+}
+
+TEST(audioflinger_resampler, stopbandresponse_integer_mono) {
+    // not all of these may work (old resamplers fail on downsampling)
+    static const enum android::AudioResampler::src_quality kQualityArray[] = {
+            //android::AudioResampler::LOW_QUALITY,
+            //android::AudioResampler::MED_QUALITY,
+            //android::AudioResampler::HIGH_QUALITY,
+            //android::AudioResampler::VERY_HIGH_QUALITY,
+            android::AudioResampler::DYN_LOW_QUALITY,
+            android::AudioResampler::DYN_MED_QUALITY,
+            android::AudioResampler::DYN_HIGH_QUALITY,
+    };
+
+    // in this test we assume a maximum transition band between 12kHz and 20kHz.
+    // there must be at least 60dB relative attenuation between stopband and passband.
+    for (size_t i = 0; i < ARRAY_SIZE(kQualityArray); ++i) {
+        testStopbandDownconversion<int16_t, int32_t>(
+                1, 48000, 32000, 12000, 20000, kQualityArray[i]);
+    }
+
+    // in this test we assume a maximum transition band between 7kHz and 15kHz.
+    // there must be at least 60dB relative attenuation between stopband and passband.
+    // (the weird ratio triggers interpolative resampling)
+    for (size_t i = 0; i < ARRAY_SIZE(kQualityArray); ++i) {
+        testStopbandDownconversion<int16_t, int32_t>(
+                1, 48000, 22101, 7000, 15000, kQualityArray[i]);
+    }
+}
+
+TEST(audioflinger_resampler, stopbandresponse_integer_multichannel) {
+    // not all of these may work (old resamplers fail on downsampling)
+    static const enum android::AudioResampler::src_quality kQualityArray[] = {
+            //android::AudioResampler::LOW_QUALITY,
+            //android::AudioResampler::MED_QUALITY,
+            //android::AudioResampler::HIGH_QUALITY,
+            //android::AudioResampler::VERY_HIGH_QUALITY,
+            android::AudioResampler::DYN_LOW_QUALITY,
+            android::AudioResampler::DYN_MED_QUALITY,
+            android::AudioResampler::DYN_HIGH_QUALITY,
+    };
+
+    // in this test we assume a maximum transition band between 12kHz and 20kHz.
+    // there must be at least 60dB relative attenuation between stopband and passband.
+    for (size_t i = 0; i < ARRAY_SIZE(kQualityArray); ++i) {
+        testStopbandDownconversion<int16_t, int32_t>(
+                8, 48000, 32000, 12000, 20000, kQualityArray[i]);
+    }
+
+    // in this test we assume a maximum transition band between 7kHz and 15kHz.
+    // there must be at least 60dB relative attenuation between stopband and passband.
+    // (the weird ratio triggers interpolative resampling)
+    for (size_t i = 0; i < ARRAY_SIZE(kQualityArray); ++i) {
+        testStopbandDownconversion<int16_t, int32_t>(
+                8, 48000, 22101, 7000, 15000, kQualityArray[i]);
+    }
+}
+
+TEST(audioflinger_resampler, stopbandresponse_float) {
+    // not all of these may work (old resamplers fail on downsampling)
+    static const enum android::AudioResampler::src_quality kQualityArray[] = {
+            //android::AudioResampler::LOW_QUALITY,
+            //android::AudioResampler::MED_QUALITY,
+            //android::AudioResampler::HIGH_QUALITY,
+            //android::AudioResampler::VERY_HIGH_QUALITY,
+            android::AudioResampler::DYN_LOW_QUALITY,
+            android::AudioResampler::DYN_MED_QUALITY,
+            android::AudioResampler::DYN_HIGH_QUALITY,
+    };
+
+    // in this test we assume a maximum transition band between 12kHz and 20kHz.
+    // there must be at least 60dB relative attenuation between stopband and passband.
+    for (size_t i = 0; i < ARRAY_SIZE(kQualityArray); ++i) {
+        testStopbandDownconversion<float, float>(
+                2, 48000, 32000, 12000, 20000, kQualityArray[i]);
+    }
+
+    // in this test we assume a maximum transition band between 7kHz and 15kHz.
+    // there must be at least 60dB relative attenuation between stopband and passband.
+    // (the weird ratio triggers interpolative resampling)
+    for (size_t i = 0; i < ARRAY_SIZE(kQualityArray); ++i) {
+        testStopbandDownconversion<float, float>(
+                2, 48000, 22101, 7000, 15000, kQualityArray[i]);
+    }
+}
+
+TEST(audioflinger_resampler, stopbandresponse_float_mono) {
+    // not all of these may work (old resamplers fail on downsampling)
+    static const enum android::AudioResampler::src_quality kQualityArray[] = {
+            //android::AudioResampler::LOW_QUALITY,
+            //android::AudioResampler::MED_QUALITY,
+            //android::AudioResampler::HIGH_QUALITY,
+            //android::AudioResampler::VERY_HIGH_QUALITY,
+            android::AudioResampler::DYN_LOW_QUALITY,
+            android::AudioResampler::DYN_MED_QUALITY,
+            android::AudioResampler::DYN_HIGH_QUALITY,
+    };
+
+    // in this test we assume a maximum transition band between 12kHz and 20kHz.
+    // there must be at least 60dB relative attenuation between stopband and passband.
+    for (size_t i = 0; i < ARRAY_SIZE(kQualityArray); ++i) {
+        testStopbandDownconversion<float, float>(
+                1, 48000, 32000, 12000, 20000, kQualityArray[i]);
+    }
+
+    // in this test we assume a maximum transition band between 7kHz and 15kHz.
+    // there must be at least 60dB relative attenuation between stopband and passband.
+    // (the weird ratio triggers interpolative resampling)
+    for (size_t i = 0; i < ARRAY_SIZE(kQualityArray); ++i) {
+        testStopbandDownconversion<float, float>(
+                1, 48000, 22101, 7000, 15000, kQualityArray[i]);
+    }
+}
+
+TEST(audioflinger_resampler, stopbandresponse_float_multichannel) {
+    // not all of these may work (old resamplers fail on downsampling)
+    static const enum android::AudioResampler::src_quality kQualityArray[] = {
+            //android::AudioResampler::LOW_QUALITY,
+            //android::AudioResampler::MED_QUALITY,
+            //android::AudioResampler::HIGH_QUALITY,
+            //android::AudioResampler::VERY_HIGH_QUALITY,
+            android::AudioResampler::DYN_LOW_QUALITY,
+            android::AudioResampler::DYN_MED_QUALITY,
+            android::AudioResampler::DYN_HIGH_QUALITY,
+    };
+
+    // in this test we assume a maximum transition band between 12kHz and 20kHz.
+    // there must be at least 60dB relative attenuation between stopband and passband.
+    for (size_t i = 0; i < ARRAY_SIZE(kQualityArray); ++i) {
+        testStopbandDownconversion<float, float>(
+                8, 48000, 32000, 12000, 20000, kQualityArray[i]);
+    }
+
+    // in this test we assume a maximum transition band between 7kHz and 15kHz.
+    // there must be at least 60dB relative attenuation between stopband and passband.
+    // (the weird ratio triggers interpolative resampling)
+    for (size_t i = 0; i < ARRAY_SIZE(kQualityArray); ++i) {
+        testStopbandDownconversion<float, float>(
+                8, 48000, 22101, 7000, 15000, kQualityArray[i]);
+    }
+}
+
diff --git a/media/libaudioprocessing/tests/run_all_unit_tests.sh b/media/libaudioprocessing/tests/run_all_unit_tests.sh
new file mode 100755
index 0000000..15a94c2
--- /dev/null
+++ b/media/libaudioprocessing/tests/run_all_unit_tests.sh
@@ -0,0 +1,12 @@
+#!/bin/bash
+
+if [ -z "$ANDROID_BUILD_TOP" ]; then
+    echo "Android build environment not set"
+    exit -1
+fi
+
+echo "waiting for device"
+adb root && adb wait-for-device remount
+
+adb shell /data/nativetest/resampler_tests/resampler_tests
+adb shell /data/nativetest64/resampler_tests/resampler_tests
diff --git a/media/libaudioprocessing/tests/test-mixer.cpp b/media/libaudioprocessing/tests/test-mixer.cpp
new file mode 100644
index 0000000..75dbf91
--- /dev/null
+++ b/media/libaudioprocessing/tests/test-mixer.cpp
@@ -0,0 +1,328 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stdio.h>
+#include <inttypes.h>
+#include <math.h>
+#include <vector>
+#include <audio_utils/primitives.h>
+#include <audio_utils/sndfile.h>
+#include <media/AudioBufferProvider.h>
+#include <media/AudioMixer.h>
+#include "test_utils.h"
+
+/* Testing is typically through creation of an output WAV file from several
+ * source inputs, to be later analyzed by an audio program such as Audacity.
+ *
+ * Sine or chirp functions are typically more useful as input to the mixer
+ * as they show up as straight lines on a spectrogram if successfully mixed.
+ *
+ * A sample shell script is provided: mixer_to_wave_tests.sh
+ */
+
+using namespace android;
+
+static void usage(const char* name) {
+    fprintf(stderr, "Usage: %s [-f] [-m] [-c channels]"
+                    " [-s sample-rate] [-o <output-file>] [-a <aux-buffer-file>] [-P csv]"
+                    " (<input-file> | <command>)+\n", name);
+    fprintf(stderr, "    -f    enable floating point input track by default\n");
+    fprintf(stderr, "    -m    enable floating point mixer output\n");
+    fprintf(stderr, "    -c    number of mixer output channels\n");
+    fprintf(stderr, "    -s    mixer sample-rate\n");
+    fprintf(stderr, "    -o    <output-file> WAV file, pcm16 (or float if -m specified)\n");
+    fprintf(stderr, "    -a    <aux-buffer-file>\n");
+    fprintf(stderr, "    -P    # frames provided per call to resample() in CSV format\n");
+    fprintf(stderr, "    <input-file> is a WAV file\n");
+    fprintf(stderr, "    <command> can be 'sine:[(i|f),]<channels>,<frequency>,<samplerate>'\n");
+    fprintf(stderr, "                     'chirp:[(i|f),]<channels>,<samplerate>'\n");
+}
+
+static int writeFile(const char *filename, const void *buffer,
+        uint32_t sampleRate, uint32_t channels, size_t frames, bool isBufferFloat) {
+    if (filename == NULL) {
+        return 0; // ok to pass in NULL filename
+    }
+    // write output to file.
+    SF_INFO info;
+    info.frames = 0;
+    info.samplerate = sampleRate;
+    info.channels = channels;
+    info.format = SF_FORMAT_WAV | (isBufferFloat ? SF_FORMAT_FLOAT : SF_FORMAT_PCM_16);
+    printf("saving file:%s  channels:%u  samplerate:%u  frames:%zu\n",
+            filename, info.channels, info.samplerate, frames);
+    SNDFILE *sf = sf_open(filename, SFM_WRITE, &info);
+    if (sf == NULL) {
+        perror(filename);
+        return EXIT_FAILURE;
+    }
+    if (isBufferFloat) {
+        (void) sf_writef_float(sf, (float*)buffer, frames);
+    } else {
+        (void) sf_writef_short(sf, (short*)buffer, frames);
+    }
+    sf_close(sf);
+    return EXIT_SUCCESS;
+}
+
+const char *parseFormat(const char *s, bool *useFloat) {
+    if (!strncmp(s, "f,", 2)) {
+        *useFloat = true;
+        return s + 2;
+    }
+    if (!strncmp(s, "i,", 2)) {
+        *useFloat = false;
+        return s + 2;
+    }
+    return s;
+}
+
+int main(int argc, char* argv[]) {
+    const char* const progname = argv[0];
+    bool useInputFloat = false;
+    bool useMixerFloat = false;
+    bool useRamp = true;
+    uint32_t outputSampleRate = 48000;
+    uint32_t outputChannels = 2; // stereo for now
+    std::vector<int> Pvalues;
+    const char* outputFilename = NULL;
+    const char* auxFilename = NULL;
+    std::vector<int32_t> names;
+    std::vector<SignalProvider> providers;
+    std::vector<audio_format_t> formats;
+
+    for (int ch; (ch = getopt(argc, argv, "fmc:s:o:a:P:")) != -1;) {
+        switch (ch) {
+        case 'f':
+            useInputFloat = true;
+            break;
+        case 'm':
+            useMixerFloat = true;
+            break;
+        case 'c':
+            outputChannels = atoi(optarg);
+            break;
+        case 's':
+            outputSampleRate = atoi(optarg);
+            break;
+        case 'o':
+            outputFilename = optarg;
+            break;
+        case 'a':
+            auxFilename = optarg;
+            break;
+        case 'P':
+            if (parseCSV(optarg, Pvalues) < 0) {
+                fprintf(stderr, "incorrect syntax for -P option\n");
+                return EXIT_FAILURE;
+            }
+            break;
+        case '?':
+        default:
+            usage(progname);
+            return EXIT_FAILURE;
+        }
+    }
+    argc -= optind;
+    argv += optind;
+
+    if (argc == 0) {
+        usage(progname);
+        return EXIT_FAILURE;
+    }
+    if ((unsigned)argc > AudioMixer::MAX_NUM_TRACKS) {
+        fprintf(stderr, "too many tracks: %d > %u", argc, AudioMixer::MAX_NUM_TRACKS);
+        return EXIT_FAILURE;
+    }
+
+    size_t outputFrames = 0;
+
+    // create providers for each track
+    names.resize(argc);
+    providers.resize(argc);
+    formats.resize(argc);
+    for (int i = 0; i < argc; ++i) {
+        static const char chirp[] = "chirp:";
+        static const char sine[] = "sine:";
+        static const double kSeconds = 1;
+        bool useFloat = useInputFloat;
+
+        if (!strncmp(argv[i], chirp, strlen(chirp))) {
+            std::vector<int> v;
+            const char *s = parseFormat(argv[i] + strlen(chirp), &useFloat);
+
+            parseCSV(s, v);
+            if (v.size() == 2) {
+                printf("creating chirp(%d %d)\n", v[0], v[1]);
+                if (useFloat) {
+                    providers[i].setChirp<float>(v[0], 0, v[1]/2, v[1], kSeconds);
+                    formats[i] = AUDIO_FORMAT_PCM_FLOAT;
+                } else {
+                    providers[i].setChirp<int16_t>(v[0], 0, v[1]/2, v[1], kSeconds);
+                    formats[i] = AUDIO_FORMAT_PCM_16_BIT;
+                }
+                providers[i].setIncr(Pvalues);
+            } else {
+                fprintf(stderr, "malformed input '%s'\n", argv[i]);
+            }
+        } else if (!strncmp(argv[i], sine, strlen(sine))) {
+            std::vector<int> v;
+            const char *s = parseFormat(argv[i] + strlen(sine), &useFloat);
+
+            parseCSV(s, v);
+            if (v.size() == 3) {
+                printf("creating sine(%d %d %d)\n", v[0], v[1], v[2]);
+                if (useFloat) {
+                    providers[i].setSine<float>(v[0], v[1], v[2], kSeconds);
+                    formats[i] = AUDIO_FORMAT_PCM_FLOAT;
+                } else {
+                    providers[i].setSine<int16_t>(v[0], v[1], v[2], kSeconds);
+                    formats[i] = AUDIO_FORMAT_PCM_16_BIT;
+                }
+                providers[i].setIncr(Pvalues);
+            } else {
+                fprintf(stderr, "malformed input '%s'\n", argv[i]);
+            }
+        } else {
+            printf("creating filename(%s)\n", argv[i]);
+            if (useInputFloat) {
+                providers[i].setFile<float>(argv[i]);
+                formats[i] = AUDIO_FORMAT_PCM_FLOAT;
+            } else {
+                providers[i].setFile<short>(argv[i]);
+                formats[i] = AUDIO_FORMAT_PCM_16_BIT;
+            }
+            providers[i].setIncr(Pvalues);
+        }
+        // calculate the number of output frames
+        size_t nframes = (int64_t) providers[i].getNumFrames() * outputSampleRate
+                / providers[i].getSampleRate();
+        if (i == 0 || outputFrames > nframes) { // choose minimum for outputFrames
+            outputFrames = nframes;
+        }
+    }
+
+    // create the output buffer.
+    const size_t outputFrameSize = outputChannels
+            * (useMixerFloat ? sizeof(float) : sizeof(int16_t));
+    const size_t outputSize = outputFrames * outputFrameSize;
+    const audio_channel_mask_t outputChannelMask =
+            audio_channel_out_mask_from_count(outputChannels);
+    void *outputAddr = NULL;
+    (void) posix_memalign(&outputAddr, 32, outputSize);
+    memset(outputAddr, 0, outputSize);
+
+    // create the aux buffer, if needed.
+    const size_t auxFrameSize = sizeof(int32_t); // Q4.27 always
+    const size_t auxSize = outputFrames * auxFrameSize;
+    void *auxAddr = NULL;
+    if (auxFilename) {
+        (void) posix_memalign(&auxAddr, 32, auxSize);
+        memset(auxAddr, 0, auxSize);
+    }
+
+    // create the mixer.
+    const size_t mixerFrameCount = 320; // typical numbers may range from 240 or 960
+    AudioMixer *mixer = new AudioMixer(mixerFrameCount, outputSampleRate);
+    audio_format_t mixerFormat = useMixerFloat
+            ? AUDIO_FORMAT_PCM_FLOAT : AUDIO_FORMAT_PCM_16_BIT;
+    float f = AudioMixer::UNITY_GAIN_FLOAT / providers.size(); // normalize volume by # tracks
+    static float f0; // zero
+
+    // set up the tracks.
+    for (size_t i = 0; i < providers.size(); ++i) {
+        //printf("track %d out of %d\n", i, providers.size());
+        uint32_t channelMask = audio_channel_out_mask_from_count(providers[i].getNumChannels());
+        int32_t name = mixer->getTrackName(channelMask,
+                formats[i], AUDIO_SESSION_OUTPUT_MIX);
+        ALOG_ASSERT(name >= 0);
+        names[i] = name;
+        mixer->setBufferProvider(name, &providers[i]);
+        mixer->setParameter(name, AudioMixer::TRACK, AudioMixer::MAIN_BUFFER,
+                (void *)outputAddr);
+        mixer->setParameter(
+                name,
+                AudioMixer::TRACK,
+                AudioMixer::MIXER_FORMAT,
+                (void *)(uintptr_t)mixerFormat);
+        mixer->setParameter(
+                name,
+                AudioMixer::TRACK,
+                AudioMixer::FORMAT,
+                (void *)(uintptr_t)formats[i]);
+        mixer->setParameter(
+                name,
+                AudioMixer::TRACK,
+                AudioMixer::MIXER_CHANNEL_MASK,
+                (void *)(uintptr_t)outputChannelMask);
+        mixer->setParameter(
+                name,
+                AudioMixer::TRACK,
+                AudioMixer::CHANNEL_MASK,
+                (void *)(uintptr_t)channelMask);
+        mixer->setParameter(
+                name,
+                AudioMixer::RESAMPLE,
+                AudioMixer::SAMPLE_RATE,
+                (void *)(uintptr_t)providers[i].getSampleRate());
+        if (useRamp) {
+            mixer->setParameter(name, AudioMixer::VOLUME, AudioMixer::VOLUME0, &f0);
+            mixer->setParameter(name, AudioMixer::VOLUME, AudioMixer::VOLUME1, &f0);
+            mixer->setParameter(name, AudioMixer::RAMP_VOLUME, AudioMixer::VOLUME0, &f);
+            mixer->setParameter(name, AudioMixer::RAMP_VOLUME, AudioMixer::VOLUME1, &f);
+        } else {
+            mixer->setParameter(name, AudioMixer::VOLUME, AudioMixer::VOLUME0, &f);
+            mixer->setParameter(name, AudioMixer::VOLUME, AudioMixer::VOLUME1, &f);
+        }
+        if (auxFilename) {
+            mixer->setParameter(name, AudioMixer::TRACK, AudioMixer::AUX_BUFFER,
+                    (void *) auxAddr);
+            mixer->setParameter(name, AudioMixer::VOLUME, AudioMixer::AUXLEVEL, &f0);
+            mixer->setParameter(name, AudioMixer::RAMP_VOLUME, AudioMixer::AUXLEVEL, &f);
+        }
+        mixer->enable(name);
+    }
+
+    // pump the mixer to process data.
+    size_t i;
+    for (i = 0; i < outputFrames - mixerFrameCount; i += mixerFrameCount) {
+        for (size_t j = 0; j < names.size(); ++j) {
+            mixer->setParameter(names[j], AudioMixer::TRACK, AudioMixer::MAIN_BUFFER,
+                    (char *) outputAddr + i * outputFrameSize);
+            if (auxFilename) {
+                mixer->setParameter(names[j], AudioMixer::TRACK, AudioMixer::AUX_BUFFER,
+                        (char *) auxAddr + i * auxFrameSize);
+            }
+        }
+        mixer->process();
+    }
+    outputFrames = i; // reset output frames to the data actually produced.
+
+    // write to files
+    writeFile(outputFilename, outputAddr,
+            outputSampleRate, outputChannels, outputFrames, useMixerFloat);
+    if (auxFilename) {
+        // Aux buffer is always in q4_27 format for now.
+        // memcpy_to_i16_from_q4_27(), but with stereo frame count (not sample count)
+        ditherAndClamp((int32_t*)auxAddr, (int32_t*)auxAddr, outputFrames >> 1);
+        writeFile(auxFilename, auxAddr, outputSampleRate, 1, outputFrames, false);
+    }
+
+    delete mixer;
+    free(outputAddr);
+    free(auxAddr);
+    return EXIT_SUCCESS;
+}
diff --git a/media/libaudioprocessing/tests/test-resampler.cpp b/media/libaudioprocessing/tests/test-resampler.cpp
new file mode 100644
index 0000000..fbc9326
--- /dev/null
+++ b/media/libaudioprocessing/tests/test-resampler.cpp
@@ -0,0 +1,515 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <fcntl.h>
+#include <string.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <errno.h>
+#include <inttypes.h>
+#include <time.h>
+#include <math.h>
+#include <audio_utils/primitives.h>
+#include <audio_utils/sndfile.h>
+#include <utils/Vector.h>
+#include <media/AudioBufferProvider.h>
+#include <media/AudioResampler.h>
+
+using namespace android;
+
+static bool gVerbose = false;
+
+static int usage(const char* name) {
+    fprintf(stderr,"Usage: %s [-p] [-f] [-F] [-v] [-c channels]"
+                   " [-q {dq|lq|mq|hq|vhq|dlq|dmq|dhq}]"
+                   " [-i input-sample-rate] [-o output-sample-rate]"
+                   " [-O csv] [-P csv] [<input-file>]"
+                   " <output-file>\n", name);
+    fprintf(stderr,"    -p    enable profiling\n");
+    fprintf(stderr,"    -f    enable filter profiling\n");
+    fprintf(stderr,"    -F    enable floating point -q {dlq|dmq|dhq} only");
+    fprintf(stderr,"    -v    verbose : log buffer provider calls\n");
+    fprintf(stderr,"    -c    # channels (1-2 for lq|mq|hq; 1-8 for dlq|dmq|dhq)\n");
+    fprintf(stderr,"    -q    resampler quality\n");
+    fprintf(stderr,"              dq  : default quality\n");
+    fprintf(stderr,"              lq  : low quality\n");
+    fprintf(stderr,"              mq  : medium quality\n");
+    fprintf(stderr,"              hq  : high quality\n");
+    fprintf(stderr,"              vhq : very high quality\n");
+    fprintf(stderr,"              dlq : dynamic low quality\n");
+    fprintf(stderr,"              dmq : dynamic medium quality\n");
+    fprintf(stderr,"              dhq : dynamic high quality\n");
+    fprintf(stderr,"    -i    input file sample rate (ignored if input file is specified)\n");
+    fprintf(stderr,"    -o    output file sample rate\n");
+    fprintf(stderr,"    -O    # frames output per call to resample() in CSV format\n");
+    fprintf(stderr,"    -P    # frames provided per call to resample() in CSV format\n");
+    return -1;
+}
+
+// Convert a list of integers in CSV format to a Vector of those values.
+// Returns the number of elements in the list, or -1 on error.
+int parseCSV(const char *string, Vector<int>& values)
+{
+    // pass 1: count the number of values and do syntax check
+    size_t numValues = 0;
+    bool hadDigit = false;
+    for (const char *p = string; ; ) {
+        switch (*p++) {
+        case '0': case '1': case '2': case '3': case '4':
+        case '5': case '6': case '7': case '8': case '9':
+            hadDigit = true;
+            break;
+        case '\0':
+            if (hadDigit) {
+                // pass 2: allocate and initialize vector of values
+                values.resize(++numValues);
+                values.editItemAt(0) = atoi(p = optarg);
+                for (size_t i = 1; i < numValues; ) {
+                    if (*p++ == ',') {
+                        values.editItemAt(i++) = atoi(p);
+                    }
+                }
+                return numValues;
+            }
+            // fall through
+        case ',':
+            if (hadDigit) {
+                hadDigit = false;
+                numValues++;
+                break;
+            }
+            // fall through
+        default:
+            return -1;
+        }
+    }
+}
+
+int main(int argc, char* argv[]) {
+    const char* const progname = argv[0];
+    bool profileResample = false;
+    bool profileFilter = false;
+    bool useFloat = false;
+    int channels = 1;
+    int input_freq = 0;
+    int output_freq = 0;
+    AudioResampler::src_quality quality = AudioResampler::DEFAULT_QUALITY;
+    Vector<int> Ovalues;
+    Vector<int> Pvalues;
+
+    int ch;
+    while ((ch = getopt(argc, argv, "pfFvc:q:i:o:O:P:")) != -1) {
+        switch (ch) {
+        case 'p':
+            profileResample = true;
+            break;
+        case 'f':
+            profileFilter = true;
+            break;
+        case 'F':
+            useFloat = true;
+            break;
+        case 'v':
+            gVerbose = true;
+            break;
+        case 'c':
+            channels = atoi(optarg);
+            break;
+        case 'q':
+            if (!strcmp(optarg, "dq"))
+                quality = AudioResampler::DEFAULT_QUALITY;
+            else if (!strcmp(optarg, "lq"))
+                quality = AudioResampler::LOW_QUALITY;
+            else if (!strcmp(optarg, "mq"))
+                quality = AudioResampler::MED_QUALITY;
+            else if (!strcmp(optarg, "hq"))
+                quality = AudioResampler::HIGH_QUALITY;
+            else if (!strcmp(optarg, "vhq"))
+                quality = AudioResampler::VERY_HIGH_QUALITY;
+            else if (!strcmp(optarg, "dlq"))
+                quality = AudioResampler::DYN_LOW_QUALITY;
+            else if (!strcmp(optarg, "dmq"))
+                quality = AudioResampler::DYN_MED_QUALITY;
+            else if (!strcmp(optarg, "dhq"))
+                quality = AudioResampler::DYN_HIGH_QUALITY;
+            else {
+                usage(progname);
+                return -1;
+            }
+            break;
+        case 'i':
+            input_freq = atoi(optarg);
+            break;
+        case 'o':
+            output_freq = atoi(optarg);
+            break;
+        case 'O':
+            if (parseCSV(optarg, Ovalues) < 0) {
+                fprintf(stderr, "incorrect syntax for -O option\n");
+                return -1;
+            }
+            break;
+        case 'P':
+            if (parseCSV(optarg, Pvalues) < 0) {
+                fprintf(stderr, "incorrect syntax for -P option\n");
+                return -1;
+            }
+            break;
+        case '?':
+        default:
+            usage(progname);
+            return -1;
+        }
+    }
+
+    if (channels < 1
+            || channels > (quality < AudioResampler::DYN_LOW_QUALITY ? 2 : 8)) {
+        fprintf(stderr, "invalid number of audio channels %d\n", channels);
+        return -1;
+    }
+    if (useFloat && quality < AudioResampler::DYN_LOW_QUALITY) {
+        fprintf(stderr, "float processing is only possible for dynamic resamplers\n");
+        return -1;
+    }
+
+    argc -= optind;
+    argv += optind;
+
+    const char* file_in = NULL;
+    const char* file_out = NULL;
+    if (argc == 1) {
+        file_out = argv[0];
+    } else if (argc == 2) {
+        file_in = argv[0];
+        file_out = argv[1];
+    } else {
+        usage(progname);
+        return -1;
+    }
+
+    // ----------------------------------------------------------
+
+    size_t input_size;
+    void* input_vaddr;
+    if (argc == 2) {
+        SF_INFO info;
+        info.format = 0;
+        SNDFILE *sf = sf_open(file_in, SFM_READ, &info);
+        if (sf == NULL) {
+            perror(file_in);
+            return EXIT_FAILURE;
+        }
+        input_size = info.frames * info.channels * sizeof(short);
+        input_vaddr = malloc(input_size);
+        (void) sf_readf_short(sf, (short *) input_vaddr, info.frames);
+        sf_close(sf);
+        channels = info.channels;
+        input_freq = info.samplerate;
+    } else {
+        // data for testing is exactly (input sampling rate/1000)/2 seconds
+        // so 44.1khz input is 22.05 seconds
+        double k = 1000; // Hz / s
+        double time = (input_freq / 2) / k;
+        size_t input_frames = size_t(input_freq * time);
+        input_size = channels * sizeof(int16_t) * input_frames;
+        input_vaddr = malloc(input_size);
+        int16_t* in = (int16_t*)input_vaddr;
+        for (size_t i=0 ; i<input_frames ; i++) {
+            double t = double(i) / input_freq;
+            double y = sin(M_PI * k * t * t);
+            int16_t yi = floor(y * 32767.0 + 0.5);
+            for (int j = 0; j < channels; j++) {
+                in[i*channels + j] = yi / (1 + j);
+            }
+        }
+    }
+    size_t input_framesize = channels * sizeof(int16_t);
+    size_t input_frames = input_size / input_framesize;
+
+    // For float processing, convert input int16_t to float array
+    if (useFloat) {
+        void *new_vaddr;
+
+        input_framesize = channels * sizeof(float);
+        input_size = input_frames * input_framesize;
+        new_vaddr = malloc(input_size);
+        memcpy_to_float_from_i16(reinterpret_cast<float*>(new_vaddr),
+                reinterpret_cast<int16_t*>(input_vaddr), input_frames * channels);
+        free(input_vaddr);
+        input_vaddr = new_vaddr;
+    }
+
+    // ----------------------------------------------------------
+
+    class Provider: public AudioBufferProvider {
+        const void*     mAddr;      // base address
+        const size_t    mNumFrames; // total frames
+        const size_t    mFrameSize; // size of each frame in bytes
+        size_t          mNextFrame; // index of next frame to provide
+        size_t          mUnrel;     // number of frames not yet released
+        const Vector<int> mPvalues; // number of frames provided per call
+        size_t          mNextPidx;  // index of next entry in mPvalues to use
+    public:
+        Provider(const void* addr, size_t frames, size_t frameSize, const Vector<int>& Pvalues)
+          : mAddr(addr),
+            mNumFrames(frames),
+            mFrameSize(frameSize),
+            mNextFrame(0), mUnrel(0), mPvalues(Pvalues), mNextPidx(0) {
+        }
+        virtual status_t getNextBuffer(Buffer* buffer) {
+            size_t requestedFrames = buffer->frameCount;
+            if (requestedFrames > mNumFrames - mNextFrame) {
+                buffer->frameCount = mNumFrames - mNextFrame;
+            }
+            if (!mPvalues.isEmpty()) {
+                size_t provided = mPvalues[mNextPidx++];
+                printf("mPvalue[%zu]=%zu not %zu\n", mNextPidx-1, provided, buffer->frameCount);
+                if (provided < buffer->frameCount) {
+                    buffer->frameCount = provided;
+                }
+                if (mNextPidx >= mPvalues.size()) {
+                    mNextPidx = 0;
+                }
+            }
+            if (gVerbose) {
+                printf("getNextBuffer() requested %zu frames out of %zu frames available,"
+                        " and returned %zu frames\n",
+                        requestedFrames, (size_t) (mNumFrames - mNextFrame), buffer->frameCount);
+            }
+            mUnrel = buffer->frameCount;
+            if (buffer->frameCount > 0) {
+                buffer->raw = (char *)mAddr + mFrameSize * mNextFrame;
+                return NO_ERROR;
+            } else {
+                buffer->raw = NULL;
+                return NOT_ENOUGH_DATA;
+            }
+        }
+        virtual void releaseBuffer(Buffer* buffer) {
+            if (buffer->frameCount > mUnrel) {
+                fprintf(stderr, "ERROR releaseBuffer() released %zu frames but only %zu available "
+                        "to release\n", buffer->frameCount, mUnrel);
+                mNextFrame += mUnrel;
+                mUnrel = 0;
+            } else {
+                if (gVerbose) {
+                    printf("releaseBuffer() released %zu frames out of %zu frames available "
+                            "to release\n", buffer->frameCount, mUnrel);
+                }
+                mNextFrame += buffer->frameCount;
+                mUnrel -= buffer->frameCount;
+            }
+            buffer->frameCount = 0;
+            buffer->raw = NULL;
+        }
+        void reset() {
+            mNextFrame = 0;
+        }
+    } provider(input_vaddr, input_frames, input_framesize, Pvalues);
+
+    if (gVerbose) {
+        printf("%zu input frames\n", input_frames);
+    }
+
+    audio_format_t format = useFloat ? AUDIO_FORMAT_PCM_FLOAT : AUDIO_FORMAT_PCM_16_BIT;
+    int output_channels = channels > 2 ? channels : 2; // output is at least stereo samples
+    size_t output_framesize = output_channels * (useFloat ? sizeof(float) : sizeof(int32_t));
+    size_t output_frames = ((int64_t) input_frames * output_freq) / input_freq;
+    size_t output_size = output_frames * output_framesize;
+
+    if (profileFilter) {
+        // Check how fast sample rate changes are that require filter changes.
+        // The delta sample rate changes must indicate a downsampling ratio,
+        // and must be larger than 10% changes.
+        //
+        // On fast devices, filters should be generated between 0.1ms - 1ms.
+        // (single threaded).
+        AudioResampler* resampler = AudioResampler::create(format, channels,
+                8000, quality);
+        int looplimit = 100;
+        timespec start, end;
+        clock_gettime(CLOCK_MONOTONIC, &start);
+        for (int i = 0; i < looplimit; ++i) {
+            resampler->setSampleRate(9000);
+            resampler->setSampleRate(12000);
+            resampler->setSampleRate(20000);
+            resampler->setSampleRate(30000);
+        }
+        clock_gettime(CLOCK_MONOTONIC, &end);
+        int64_t start_ns = start.tv_sec * 1000000000LL + start.tv_nsec;
+        int64_t end_ns = end.tv_sec * 1000000000LL + end.tv_nsec;
+        int64_t time = end_ns - start_ns;
+        printf("%.2f sample rate changes with filter calculation/sec\n",
+                looplimit * 4 / (time / 1e9));
+
+        // Check how fast sample rate changes are without filter changes.
+        // This should be very fast, probably 0.1us - 1us per sample rate
+        // change.
+        resampler->setSampleRate(1000);
+        looplimit = 1000;
+        clock_gettime(CLOCK_MONOTONIC, &start);
+        for (int i = 0; i < looplimit; ++i) {
+            resampler->setSampleRate(1000+i);
+        }
+        clock_gettime(CLOCK_MONOTONIC, &end);
+        start_ns = start.tv_sec * 1000000000LL + start.tv_nsec;
+        end_ns = end.tv_sec * 1000000000LL + end.tv_nsec;
+        time = end_ns - start_ns;
+        printf("%.2f sample rate changes without filter calculation/sec\n",
+                looplimit / (time / 1e9));
+        resampler->reset();
+        delete resampler;
+    }
+
+    void* output_vaddr = malloc(output_size);
+    AudioResampler* resampler = AudioResampler::create(format, channels,
+            output_freq, quality);
+
+    resampler->setSampleRate(input_freq);
+    resampler->setVolume(AudioResampler::UNITY_GAIN_FLOAT, AudioResampler::UNITY_GAIN_FLOAT);
+
+    if (profileResample) {
+        /*
+         * For profiling on mobile devices, upon experimentation
+         * it is better to run a few trials with a shorter loop limit,
+         * and take the minimum time.
+         *
+         * Long tests can cause CPU temperature to build up and thermal throttling
+         * to reduce CPU frequency.
+         *
+         * For frequency checks (index=0, or 1, etc.):
+         * "cat /sys/devices/system/cpu/cpu${index}/cpufreq/scaling_*_freq"
+         *
+         * For temperature checks (index=0, or 1, etc.):
+         * "cat /sys/class/thermal/thermal_zone${index}/temp"
+         *
+         * Another way to avoid thermal throttling is to fix the CPU frequency
+         * at a lower level which prevents excessive temperatures.
+         */
+        const int trials = 4;
+        const int looplimit = 4;
+        timespec start, end;
+        int64_t time = 0;
+
+        for (int n = 0; n < trials; ++n) {
+            clock_gettime(CLOCK_MONOTONIC, &start);
+            for (int i = 0; i < looplimit; ++i) {
+                resampler->resample((int*) output_vaddr, output_frames, &provider);
+                provider.reset(); //  during benchmarking reset only the provider
+            }
+            clock_gettime(CLOCK_MONOTONIC, &end);
+            int64_t start_ns = start.tv_sec * 1000000000LL + start.tv_nsec;
+            int64_t end_ns = end.tv_sec * 1000000000LL + end.tv_nsec;
+            int64_t diff_ns = end_ns - start_ns;
+            if (n == 0 || diff_ns < time) {
+                time = diff_ns;   // save the best out of our trials.
+            }
+        }
+        // Mfrms/s is "Millions of output frames per second".
+        printf("quality: %d  channels: %d  msec: %" PRId64 "  Mfrms/s: %.2lf\n",
+                quality, channels, time/1000000, output_frames * looplimit / (time / 1e9) / 1e6);
+        resampler->reset();
+
+        // TODO fix legacy bug: reset does not clear buffers.
+        // delete and recreate resampler here.
+        delete resampler;
+        resampler = AudioResampler::create(format, channels,
+                    output_freq, quality);
+        resampler->setSampleRate(input_freq);
+        resampler->setVolume(AudioResampler::UNITY_GAIN_FLOAT, AudioResampler::UNITY_GAIN_FLOAT);
+    }
+
+    memset(output_vaddr, 0, output_size);
+    if (gVerbose) {
+        printf("resample() %zu output frames\n", output_frames);
+    }
+    if (Ovalues.isEmpty()) {
+        Ovalues.push(output_frames);
+    }
+    for (size_t i = 0, j = 0; i < output_frames; ) {
+        size_t thisFrames = Ovalues[j++];
+        if (j >= Ovalues.size()) {
+            j = 0;
+        }
+        if (thisFrames == 0 || thisFrames > output_frames - i) {
+            thisFrames = output_frames - i;
+        }
+        resampler->resample((int*) output_vaddr + output_channels*i, thisFrames, &provider);
+        i += thisFrames;
+    }
+    if (gVerbose) {
+        printf("resample() complete\n");
+    }
+    resampler->reset();
+    if (gVerbose) {
+        printf("reset() complete\n");
+    }
+    delete resampler;
+    resampler = NULL;
+
+    // For float processing, convert output format from float to Q4.27,
+    // which is then converted to int16_t for final storage.
+    if (useFloat) {
+        memcpy_to_q4_27_from_float(reinterpret_cast<int32_t*>(output_vaddr),
+                reinterpret_cast<float*>(output_vaddr), output_frames * output_channels);
+    }
+
+    // mono takes left channel only (out of stereo output pair)
+    // stereo and multichannel preserve all channels.
+    int32_t* out = (int32_t*) output_vaddr;
+    int16_t* convert = (int16_t*) malloc(output_frames * channels * sizeof(int16_t));
+
+    const int volumeShift = 12; // shift requirement for Q4.27 to Q.15
+    // round to half towards zero and saturate at int16 (non-dithered)
+    const int roundVal = (1<<(volumeShift-1)) - 1; // volumePrecision > 0
+
+    for (size_t i = 0; i < output_frames; i++) {
+        for (int j = 0; j < channels; j++) {
+            int32_t s = out[i * output_channels + j] + roundVal; // add offset here
+            if (s < 0) {
+                s = (s + 1) >> volumeShift; // round to 0
+                if (s < -32768) {
+                    s = -32768;
+                }
+            } else {
+                s = s >> volumeShift;
+                if (s > 32767) {
+                    s = 32767;
+                }
+            }
+            convert[i * channels + j] = int16_t(s);
+        }
+    }
+
+    // write output to disk
+    SF_INFO info;
+    info.frames = 0;
+    info.samplerate = output_freq;
+    info.channels = channels;
+    info.format = SF_FORMAT_WAV | SF_FORMAT_PCM_16;
+    SNDFILE *sf = sf_open(file_out, SFM_WRITE, &info);
+    if (sf == NULL) {
+        perror(file_out);
+        return EXIT_FAILURE;
+    }
+    (void) sf_writef_short(sf, convert, output_frames);
+    sf_close(sf);
+
+    return EXIT_SUCCESS;
+}
diff --git a/services/audioflinger/tests/test_utils.h b/media/libaudioprocessing/tests/test_utils.h
similarity index 100%
rename from services/audioflinger/tests/test_utils.h
rename to media/libaudioprocessing/tests/test_utils.h
diff --git a/include/cpustats/CentralTendencyStatistics.h b/media/libcpustats/include/cpustats/CentralTendencyStatistics.h
similarity index 100%
rename from include/cpustats/CentralTendencyStatistics.h
rename to media/libcpustats/include/cpustats/CentralTendencyStatistics.h
diff --git a/include/cpustats/README.txt b/media/libcpustats/include/cpustats/README.txt
similarity index 100%
rename from include/cpustats/README.txt
rename to media/libcpustats/include/cpustats/README.txt
diff --git a/include/cpustats/ThreadCpuUsage.h b/media/libcpustats/include/cpustats/ThreadCpuUsage.h
similarity index 100%
rename from include/cpustats/ThreadCpuUsage.h
rename to media/libcpustats/include/cpustats/ThreadCpuUsage.h
diff --git a/media/libeffects/downmix/Android.mk b/media/libeffects/downmix/Android.mk
index e0ca8af..78601d5 100644
--- a/media/libeffects/downmix/Android.mk
+++ b/media/libeffects/downmix/Android.mk
@@ -20,5 +20,6 @@
 	$(call include-path-for, audio-utils)
 
 LOCAL_CFLAGS += -fvisibility=hidden
+LOCAL_CFLAGS += -Wall -Werror
 
 include $(BUILD_SHARED_LIBRARY)
diff --git a/media/libeffects/downmix/EffectDownmix.c b/media/libeffects/downmix/EffectDownmix.c
index 5b74845..f27d5ca 100644
--- a/media/libeffects/downmix/EffectDownmix.c
+++ b/media/libeffects/downmix/EffectDownmix.c
@@ -392,7 +392,6 @@
 
     downmix_module_t *pDwmModule = (downmix_module_t *) self;
     downmix_object_t *pDownmixer;
-    int retsize;
 
     if (pDwmModule == NULL || pDwmModule->context.state == DOWNMIX_STATE_UNINITIALIZED) {
         return -EINVAL;
diff --git a/media/libeffects/factory/Android.bp b/media/libeffects/factory/Android.bp
index 0d8b6eb..e0e0d13 100644
--- a/media/libeffects/factory/Android.bp
+++ b/media/libeffects/factory/Android.bp
@@ -10,4 +10,8 @@
     ],
 
     include_dirs: ["system/media/audio_effects/include"],
+
+    local_include_dirs:["include"],
+
+    export_include_dirs: ["include"],
 }
diff --git a/media/libeffects/factory/EffectsFactory.c b/media/libeffects/factory/EffectsFactory.c
index ba20ac2..554c14d 100644
--- a/media/libeffects/factory/EffectsFactory.c
+++ b/media/libeffects/factory/EffectsFactory.c
@@ -29,7 +29,7 @@
 #include <cutils/properties.h>
 #include <log/log.h>
 
-#include <audio_effects/audio_effects_conf.h>
+#include <system/audio_effects/audio_effects_conf.h>
 
 static list_elem_t *gEffectList; // list of effect_entry_t: all currently created effects
 static list_elem_t *gLibraryList; // list of lib_entry_t: all currently loaded libraries
diff --git a/include/media/EffectsFactoryApi.h b/media/libeffects/factory/include/EffectsFactoryApi.h
similarity index 100%
rename from include/media/EffectsFactoryApi.h
rename to media/libeffects/factory/include/EffectsFactoryApi.h
diff --git a/media/libeffects/loudness/Android.mk b/media/libeffects/loudness/Android.mk
index 55d0611..3db4a79 100644
--- a/media/libeffects/loudness/Android.mk
+++ b/media/libeffects/loudness/Android.mk
@@ -8,6 +8,7 @@
 	dsp/core/dynamic_range_compression.cpp
 
 LOCAL_CFLAGS+= -O2 -fvisibility=hidden
+LOCAL_CFLAGS += -Wall -Werror
 
 LOCAL_SHARED_LIBRARIES := \
 	libcutils \
diff --git a/media/libeffects/loudness/EffectLoudnessEnhancer.cpp b/media/libeffects/loudness/EffectLoudnessEnhancer.cpp
index cf00e60..9d29cf1 100644
--- a/media/libeffects/loudness/EffectLoudnessEnhancer.cpp
+++ b/media/libeffects/loudness/EffectLoudnessEnhancer.cpp
@@ -198,7 +198,6 @@
                          effect_handle_t *pHandle) {
     ALOGV("LELib_Create()");
     int ret;
-    int i;
 
     if (pHandle == NULL || uuid == NULL) {
         return -EINVAL;
@@ -315,7 +314,6 @@
         void *pCmdData, uint32_t *replySize, void *pReplyData) {
 
     LoudnessEnhancerContext * pContext = (LoudnessEnhancerContext *)self;
-    int retsize;
 
     if (pContext == NULL || pContext->mState == LOUDNESS_ENHANCER_STATE_UNINITIALIZED) {
         return -EINVAL;
diff --git a/media/libeffects/lvm/lib/Android.mk b/media/libeffects/lvm/lib/Android.mk
index bb56c75..afc87bb 100644
--- a/media/libeffects/lvm/lib/Android.mk
+++ b/media/libeffects/lvm/lib/Android.mk
@@ -120,6 +120,7 @@
     $(LOCAL_PATH)/StereoWidening/lib
 
 LOCAL_CFLAGS += -fvisibility=hidden
+LOCAL_CFLAGS += -Wall -Werror
 
 include $(BUILD_STATIC_LIBRARY)
 
@@ -177,4 +178,5 @@
     $(LOCAL_PATH)/Common/src
 
 LOCAL_CFLAGS += -fvisibility=hidden
+LOCAL_CFLAGS += -Wall -Werror
 include $(BUILD_STATIC_LIBRARY)
diff --git a/media/libeffects/lvm/wrapper/Android.mk b/media/libeffects/lvm/wrapper/Android.mk
index 4e38e3d..9051587 100644
--- a/media/libeffects/lvm/wrapper/Android.mk
+++ b/media/libeffects/lvm/wrapper/Android.mk
@@ -10,6 +10,7 @@
 	Bundle/EffectBundle.cpp
 
 LOCAL_CFLAGS += -fvisibility=hidden
+LOCAL_CFLAGS += -Wall -Werror
 
 LOCAL_MODULE:= libbundlewrapper
 
@@ -40,6 +41,7 @@
     Reverb/EffectReverb.cpp
 
 LOCAL_CFLAGS += -fvisibility=hidden
+LOCAL_CFLAGS += -Wall -Werror
 
 LOCAL_MODULE:= libreverbwrapper
 
diff --git a/media/libeffects/lvm/wrapper/Bundle/EffectBundle.cpp b/media/libeffects/lvm/wrapper/Bundle/EffectBundle.cpp
index c380bdc..0d8142d 100644
--- a/media/libeffects/lvm/wrapper/Bundle/EffectBundle.cpp
+++ b/media/libeffects/lvm/wrapper/Bundle/EffectBundle.cpp
@@ -340,8 +340,10 @@
             }
             delete pContext;
         }
-        *pHandle = (effect_handle_t)NULL;
+        if (pHandle != NULL)
+          *pHandle = (effect_handle_t)NULL;
     } else {
+      if (pHandle != NULL)
         *pHandle = (effect_handle_t)pContext;
     }
     ALOGV("\tEffectCreate end..\n\n");
@@ -501,8 +503,6 @@
 //----------------------------------------------------------------------------
 
 int LvmBundle_init(EffectContext *pContext){
-    int status;
-
     ALOGV("\tLvmBundle_init start");
 
     pContext->config.inputCfg.accessMode                    = EFFECT_BUFFER_ACCESS_READ;
@@ -716,7 +716,6 @@
                       int              frameCount,
                       EffectContext    *pContext){
 
-    LVM_ControlParams_t     ActiveParams;                           /* Current control Parameters */
     LVM_ReturnStatus_en     LvmStatus = LVM_SUCCESS;                /* Function call status */
     LVM_INT16               *pOutTmp;
 
@@ -1040,7 +1039,6 @@
 
 void LvmEffect_free(EffectContext *pContext){
     LVM_ReturnStatus_en     LvmStatus=LVM_SUCCESS;         /* Function call status */
-    LVM_ControlParams_t     params;                        /* Control Parameters */
     LVM_MemTab_t            MemTab;
 
     /* Free the algorithm memory */
@@ -2015,8 +2013,6 @@
     int status = 0;
     int32_t *pParamTemp = (int32_t *)pParam;
     int32_t param = *pParamTemp++;
-    int32_t param2;
-    char *name;
 
     //ALOGV("\tBassBoost_getParameter start");
 
@@ -2133,7 +2129,6 @@
     int status = 0;
     int32_t *pParamTemp = (int32_t *)pParam;
     int32_t param = *pParamTemp++;
-    char *name;
 
     //ALOGV("\tVirtualizer_getParameter start");
 
@@ -2290,7 +2285,6 @@
                            uint32_t          *pValueSize,
                            void              *pValue){
     int status = 0;
-    int bMute = 0;
     int32_t *pParamTemp = (int32_t *)pParam;
     int32_t param = *pParamTemp++;
     int32_t param2;
@@ -2568,10 +2562,8 @@
                         uint32_t          *pValueSize,
                         void              *pValue){
     int status = 0;
-    int bMute = 0;
     int32_t *pParamTemp = (int32_t *)pParam;
     int32_t param = *pParamTemp++;;
-    char *name;
 
     //ALOGV("\tVolume_getParameter start");
 
@@ -2687,8 +2679,8 @@
 
         case VOLUME_PARAM_ENABLESTEREOPOSITION:
             positionEnabled = *(uint32_t *)pValue;
-            status = VolumeEnableStereoPosition(pContext, positionEnabled);
-            status = VolumeSetStereoPosition(pContext, pContext->pBundledContext->positionSaved);
+            (void) VolumeEnableStereoPosition(pContext, positionEnabled);
+            (void) VolumeSetStereoPosition(pContext, pContext->pBundledContext->positionSaved);
             //ALOGV("\tVolume_setParameter() VOLUME_PARAM_ENABLESTEREOPOSITION called");
             break;
 
@@ -2901,11 +2893,8 @@
                               audio_buffer_t         *inBuffer,
                               audio_buffer_t         *outBuffer){
     EffectContext * pContext = (EffectContext *) self;
-    LVM_ReturnStatus_en     LvmStatus = LVM_SUCCESS;                /* Function call status */
     int    status = 0;
     int    processStatus = 0;
-    LVM_INT16   *in  = (LVM_INT16 *)inBuffer->raw;
-    LVM_INT16   *out = (LVM_INT16 *)outBuffer->raw;
 
 //ALOGV("\tEffect_process Start : Enabled = %d     Called = %d (%8d %8d %8d)",
 //pContext->pBundledContext->NumberEffectsEnabled,pContext->pBundledContext->NumberEffectsCalled,
@@ -3034,7 +3023,6 @@
                               uint32_t            *replySize,
                               void                *pReplyData){
     EffectContext * pContext = (EffectContext *) self;
-    int retsize;
 
     //ALOGV("\t\nEffect_command start");
 
@@ -3433,7 +3421,6 @@
             int16_t  leftdB, rightdB;
             int16_t  maxdB, pandB;
             int32_t  vol_ret[2] = {1<<24,1<<24}; // Apply no volume
-            int      status = 0;
             LVM_ControlParams_t     ActiveParams;           /* Current control Parameters */
             LVM_ReturnStatus_en     LvmStatus=LVM_SUCCESS;  /* Function call status */
 
diff --git a/media/libeffects/lvm/wrapper/Reverb/EffectReverb.cpp b/media/libeffects/lvm/wrapper/Reverb/EffectReverb.cpp
index fc82dd1..12a038f 100644
--- a/media/libeffects/lvm/wrapper/Reverb/EffectReverb.cpp
+++ b/media/libeffects/lvm/wrapper/Reverb/EffectReverb.cpp
@@ -327,6 +327,7 @@
     }                                         \
 }
 
+#if 0
 //----------------------------------------------------------------------------
 // MonoTo2I_32()
 //----------------------------------------------------------------------------
@@ -385,6 +386,7 @@
 
    return;
 }
+#endif
 
 static inline int16_t clamp16(int32_t sample)
 {
@@ -560,7 +562,6 @@
 void Reverb_free(ReverbContext *pContext){
 
     LVREV_ReturnStatus_en     LvmStatus=LVREV_SUCCESS;         /* Function call status */
-    LVREV_ControlParams_st    params;                        /* Control Parameters */
     LVREV_MemoryTable_st      MemTab;
 
     /* Free the algorithm memory */
@@ -709,8 +710,6 @@
 //----------------------------------------------------------------------------
 
 int Reverb_init(ReverbContext *pContext){
-    int status;
-
     ALOGV("\tReverb_init start");
 
     CHECK_ARG(pContext != NULL);
@@ -1543,7 +1542,6 @@
     int status = 0;
     int32_t *pParamTemp = (int32_t *)pParam;
     int32_t param = *pParamTemp++;
-    char *name;
     t_reverb_settings *pProperties;
 
     //ALOGV("\tReverb_getParameter start");
@@ -1899,7 +1897,6 @@
                               uint32_t            *replySize,
                               void                *pReplyData){
     android::ReverbContext * pContext = (android::ReverbContext *) self;
-    int retsize;
     LVREV_ControlParams_st    ActiveParams;              /* Current control Parameters */
     LVREV_ReturnStatus_en     LvmStatus=LVREV_SUCCESS;     /* Function call status */
 
diff --git a/media/libeffects/preprocessing/Android.mk b/media/libeffects/preprocessing/Android.mk
index bd67aa1..60030ac 100644
--- a/media/libeffects/preprocessing/Android.mk
+++ b/media/libeffects/preprocessing/Android.mk
@@ -28,5 +28,6 @@
     -DWEBRTC_POSIX
 
 LOCAL_CFLAGS += -fvisibility=hidden
+LOCAL_CFLAGS += -Wall -Werror
 
 include $(BUILD_SHARED_LIBRARY)
diff --git a/media/libeffects/preprocessing/PreProcessing.cpp b/media/libeffects/preprocessing/PreProcessing.cpp
index f48bac1..ccfd29c 100644
--- a/media/libeffects/preprocessing/PreProcessing.cpp
+++ b/media/libeffects/preprocessing/PreProcessing.cpp
@@ -933,7 +933,6 @@
 
 int Session_SetConfig(preproc_session_t *session, effect_config_t *config)
 {
-    uint32_t sr;
     uint32_t inCnl = audio_channel_count_from_in_mask(config->inputCfg.channels);
     uint32_t outCnl = audio_channel_count_from_in_mask(config->outputCfg.channels);
 
@@ -1153,7 +1152,6 @@
 preproc_session_t *PreProc_GetSession(int32_t procId, int32_t  sessionId, int32_t  ioId)
 {
     size_t i;
-    int free = -1;
     for (i = 0; i < PREPROC_NUM_SESSIONS; i++) {
         if (sSessions[i].io == ioId) {
             if (sSessions[i].createdMsk & (1 << procId)) {
@@ -1210,7 +1208,6 @@
                             audio_buffer_t    *outBuffer)
 {
     preproc_effect_t * effect = (preproc_effect_t *)self;
-    int    status = 0;
 
     if (effect == NULL){
         ALOGV("PreProcessingFx_Process() ERROR effect == NULL");
@@ -1402,8 +1399,6 @@
                             void                *pReplyData)
 {
     preproc_effect_t * effect = (preproc_effect_t *) self;
-    int retsize;
-    int status;
 
     if (effect == NULL){
         return -EINVAL;
@@ -1777,7 +1772,6 @@
                                    audio_buffer_t    *outBuffer __unused)
 {
     preproc_effect_t * effect = (preproc_effect_t *)self;
-    int    status = 0;
 
     if (effect == NULL){
         ALOGW("PreProcessingFx_ProcessReverse() ERROR effect == NULL");
@@ -1926,7 +1920,6 @@
 
 int PreProcessingLib_Release(effect_handle_t interface)
 {
-    int status;
     ALOGV("EffectRelease start %p", interface);
     if (PreProc_Init() != 0) {
         return sInitStatus;
diff --git a/media/libeffects/proxy/Android.mk b/media/libeffects/proxy/Android.mk
index 2ba452e..0acf1c0 100644
--- a/media/libeffects/proxy/Android.mk
+++ b/media/libeffects/proxy/Android.mk
@@ -23,6 +23,7 @@
         EffectProxy.cpp
 
 LOCAL_CFLAGS+= -fvisibility=hidden
+LOCAL_CFLAGS += -Wall -Werror
 
 LOCAL_SHARED_LIBRARIES := liblog libcutils libutils libdl libeffects
 
diff --git a/media/libeffects/proxy/EffectProxy.cpp b/media/libeffects/proxy/EffectProxy.cpp
index 0eddc15..42e44f0 100644
--- a/media/libeffects/proxy/EffectProxy.cpp
+++ b/media/libeffects/proxy/EffectProxy.cpp
@@ -47,12 +47,6 @@
 };
 
 
-static const effect_descriptor_t *const gDescriptors[] =
-{
-    &gProxyDescriptor,
-};
-
-
 int EffectProxyCreate(const effect_uuid_t *uuid,
                             int32_t             sessionId,
                             int32_t             ioId,
@@ -245,6 +239,11 @@
     // pCmdData points to a memory holding effect_offload_param_t structure
     if (cmdCode == EFFECT_CMD_OFFLOAD) {
         ALOGV("Effect_command() cmdCode = EFFECT_CMD_OFFLOAD");
+        if (replySize == NULL || *replySize < sizeof(int)) {
+            ALOGV("effectsOffload: Effect_command: CMD_OFFLOAD has no reply");
+            android_errorWriteLog(0x534e4554, "32448121");
+            return FAILED_TRANSACTION;
+        }
         if (cmdSize == 0 || pCmdData == NULL) {
             ALOGV("effectsOffload: Effect_command: CMD_OFFLOAD has no data");
              *(int*)pReplyData = FAILED_TRANSACTION;
diff --git a/media/libeffects/visualizer/Android.mk b/media/libeffects/visualizer/Android.mk
index c92c543..ddcc565 100644
--- a/media/libeffects/visualizer/Android.mk
+++ b/media/libeffects/visualizer/Android.mk
@@ -7,6 +7,7 @@
 	EffectVisualizer.cpp
 
 LOCAL_CFLAGS+= -O2 -fvisibility=hidden
+LOCAL_CFLAGS += -Wall -Werror
 
 LOCAL_SHARED_LIBRARIES := \
 	libcutils \
diff --git a/media/libeffects/visualizer/EffectVisualizer.cpp b/media/libeffects/visualizer/EffectVisualizer.cpp
index 6a126ef..0e82339 100644
--- a/media/libeffects/visualizer/EffectVisualizer.cpp
+++ b/media/libeffects/visualizer/EffectVisualizer.cpp
@@ -237,7 +237,6 @@
                          int32_t /*ioId*/,
                          effect_handle_t *pHandle) {
     int ret;
-    int i;
 
     if (pHandle == NULL || uuid == NULL) {
         return -EINVAL;
@@ -419,7 +418,6 @@
         void *pCmdData, uint32_t *replySize, void *pReplyData) {
 
     VisualizerContext * pContext = (VisualizerContext *)self;
-    int retsize;
 
     if (pContext == NULL || pContext->mState == VISUALIZER_STATE_UNINITIALIZED) {
         return -EINVAL;
diff --git a/media/libmedia/Android.bp b/media/libmedia/Android.bp
index 7fde4b2..4b14543 100644
--- a/media/libmedia/Android.bp
+++ b/media/libmedia/Android.bp
@@ -1,10 +1,13 @@
-cc_library_static {
+cc_library {
     name: "libmedia_helper",
-    srcs: ["AudioParameter.cpp"],
+    srcs: ["AudioParameter.cpp", "TypeConverter.cpp"],
     cflags: [
         "-Werror",
         "-Wno-error=deprecated-declarations",
         "-Wall",
     ],
+    shared: {
+      shared_libs: ["libutils", "liblog"],
+    },
     clang: true,
 }
diff --git a/media/libmedia/Android.mk b/media/libmedia/Android.mk
index 3ba7ec1..c057cf5 100644
--- a/media/libmedia/Android.mk
+++ b/media/libmedia/Android.mk
@@ -2,16 +2,20 @@
 
 include $(CLEAR_VARS)
 
+LOCAL_AIDL_INCLUDES := \
+    frameworks/av/media/libmedia/aidl
+
 LOCAL_SRC_FILES:= \
-    ICrypto.cpp \
+    aidl/android/IGraphicBufferSource.aidl \
+    aidl/android/IOMXBufferSource.aidl
+
+LOCAL_SRC_FILES += \
     IDataSource.cpp \
-    IDrm.cpp \
-    IDrmClient.cpp \
     IHDCP.cpp \
+    BufferingSettings.cpp \
     mediaplayer.cpp \
     IMediaCodecList.cpp \
     IMediaCodecService.cpp \
-    IMediaDrmService.cpp \
     IMediaHTTPConnection.cpp \
     IMediaHTTPService.cpp \
     IMediaExtractor.cpp           \
@@ -22,17 +26,22 @@
     IMediaPlayer.cpp \
     IMediaRecorder.cpp \
     IMediaSource.cpp \
+    IMediaAnalyticsService.cpp \
     IRemoteDisplay.cpp \
     IRemoteDisplayClient.cpp \
     IResourceManagerClient.cpp \
     IResourceManagerService.cpp \
     IStreamSource.cpp \
+    MediaCodecBuffer.cpp \
     MediaCodecInfo.cpp \
+    MediaDefs.cpp \
+    MediaAnalyticsItem.cpp \
     MediaUtils.cpp \
     Metadata.cpp \
     mediarecorder.cpp \
     IMediaMetadataRetriever.cpp \
     mediametadataretriever.cpp \
+    MidiDeviceInfo.cpp \
     MidiIoWrapper.cpp \
     JetPlayer.cpp \
     IOMX.cpp \
@@ -43,17 +52,39 @@
     MediaProfiles.cpp \
     MediaResource.cpp \
     MediaResourcePolicy.cpp \
+    OMXBuffer.cpp \
     Visualizer.cpp \
     StringArray.cpp \
+    omx/1.0/WGraphicBufferSource.cpp \
+    omx/1.0/WOmx.cpp \
+    omx/1.0/WOmxBufferProducer.cpp \
+    omx/1.0/WOmxBufferSource.cpp \
+    omx/1.0/WOmxNode.cpp \
+    omx/1.0/WOmxObserver.cpp \
+    omx/1.0/WOmxProducerListener.cpp \
 
 LOCAL_SHARED_LIBRARIES := \
-	libui liblog libcutils libutils libbinder libsonivox libicuuc libicui18n libexpat \
+        libui liblog libcutils libutils libbinder libsonivox libicuuc libicui18n libexpat \
         libcamera_client libstagefright_foundation \
-        libgui libdl libaudioutils libaudioclient
+        libgui libdl libaudioutils libaudioclient \
+        libmedia_helper libmediadrm \
+        libbase \
+        libhidlbase \
+        libhidltransport \
+        libhwbinder \
+        libhidlmemory \
+        android.hidl.base@1.0 \
+        android.hidl.memory@1.0 \
+        android.hardware.graphics.common@1.0 \
+        android.hardware.media@1.0 \
+        android.hardware.media.omx@1.0 \
 
-LOCAL_EXPORT_SHARED_LIBRARY_HEADERS := libbinder
-
-LOCAL_WHOLE_STATIC_LIBRARIES := libmedia_helper
+LOCAL_EXPORT_SHARED_LIBRARY_HEADERS := \
+        libbinder \
+        libsonivox \
+        libmediadrm \
+        android.hardware.media.omx@1.0 \
+        android.hidl.memory@1.0 \
 
 # for memory heap analysis
 LOCAL_STATIC_LIBRARIES := libc_malloc_debug_backtrace libc_logging
@@ -63,15 +94,21 @@
 LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk
 
 LOCAL_C_INCLUDES := \
+    $(TOP)/system/libhidl/base/include \
     $(TOP)/frameworks/native/include/media/openmax \
     $(TOP)/frameworks/av/include/media/ \
-    $(TOP)/frameworks/av/media/libstagefright \
-    $(call include-path-for, audio-effects) \
+    $(TOP)/frameworks/av/media/libmedia/aidl \
+    $(TOP)/frameworks/av/include \
+    $(TOP)/frameworks/native/include \
     $(call include-path-for, audio-utils)
 
+LOCAL_EXPORT_C_INCLUDE_DIRS := \
+    frameworks/av/include/media \
+    frameworks/av/media/libmedia/aidl
+
 LOCAL_CFLAGS += -Werror -Wno-error=deprecated-declarations -Wall
-LOCAL_CLANG := true
-LOCAL_SANITIZE := unsigned-integer-overflow signed-integer-overflow
+LOCAL_SANITIZE := unsigned-integer-overflow signed-integer-overflow cfi
+LOCAL_SANITIZE_DIAG := cfi
 
 include $(BUILD_SHARED_LIBRARY)
 
diff --git a/media/libmedia/AudioParameter.cpp b/media/libmedia/AudioParameter.cpp
index 8c8cf45..65fc70b 100644
--- a/media/libmedia/AudioParameter.cpp
+++ b/media/libmedia/AudioParameter.cpp
@@ -19,8 +19,8 @@
 
 #include <utils/Log.h>
 
-#include <hardware/audio.h>
 #include <media/AudioParameter.h>
+#include <system/audio.h>
 
 namespace android {
 
@@ -32,6 +32,19 @@
 const char * const AudioParameter::keyFrameCount = AUDIO_PARAMETER_STREAM_FRAME_COUNT;
 const char * const AudioParameter::keyInputSource = AUDIO_PARAMETER_STREAM_INPUT_SOURCE;
 const char * const AudioParameter::keyScreenState = AUDIO_PARAMETER_KEY_SCREEN_STATE;
+const char * const AudioParameter::keyBtNrec = AUDIO_PARAMETER_KEY_BT_NREC;
+const char * const AudioParameter::keyHwAvSync = AUDIO_PARAMETER_HW_AV_SYNC;
+const char * const AudioParameter::keyMonoOutput = AUDIO_PARAMETER_MONO_OUTPUT;
+const char * const AudioParameter::keyStreamHwAvSync = AUDIO_PARAMETER_STREAM_HW_AV_SYNC;
+const char * const AudioParameter::keyStreamConnect = AUDIO_PARAMETER_DEVICE_CONNECT;
+const char * const AudioParameter::keyStreamDisconnect = AUDIO_PARAMETER_DEVICE_DISCONNECT;
+const char * const AudioParameter::keyStreamSupportedFormats = AUDIO_PARAMETER_STREAM_SUP_FORMATS;
+const char * const AudioParameter::keyStreamSupportedChannels = AUDIO_PARAMETER_STREAM_SUP_CHANNELS;
+const char * const AudioParameter::keyStreamSupportedSamplingRates =
+        AUDIO_PARAMETER_STREAM_SUP_SAMPLING_RATES;
+const char * const AudioParameter::valueOn = AUDIO_PARAMETER_VALUE_ON;
+const char * const AudioParameter::valueOff = AUDIO_PARAMETER_VALUE_OFF;
+const char * const AudioParameter::valueListSeparator = AUDIO_PARAMETER_VALUE_LIST_SEPARATOR;
 
 AudioParameter::AudioParameter(const String8& keyValuePairs)
 {
@@ -70,15 +83,17 @@
     mParameters.clear();
 }
 
-String8 AudioParameter::toString()
+String8 AudioParameter::toStringImpl(bool useValues) const
 {
     String8 str = String8("");
 
     size_t size = mParameters.size();
     for (size_t i = 0; i < size; i++) {
         str += mParameters.keyAt(i);
-        str += "=";
-        str += mParameters.valueAt(i);
+        if (useValues) {
+            str += "=";
+            str += mParameters.valueAt(i);
+        }
         if (i < (size - 1)) str += ";";
     }
     return str;
@@ -95,6 +110,11 @@
     }
 }
 
+status_t AudioParameter::addKey(const String8& key)
+{
+    return add(key, String8());
+}
+
 status_t AudioParameter::addInt(const String8& key, const int value)
 {
     char str[12];
@@ -127,7 +147,7 @@
     }
 }
 
-status_t AudioParameter::get(const String8& key, String8& value)
+status_t AudioParameter::get(const String8& key, String8& value) const
 {
     if (mParameters.indexOfKey(key) >= 0) {
         value = mParameters.valueFor(key);
@@ -137,7 +157,7 @@
     }
 }
 
-status_t AudioParameter::getInt(const String8& key, int& value)
+status_t AudioParameter::getInt(const String8& key, int& value) const
 {
     String8 str8;
     status_t result = get(key, str8);
@@ -153,7 +173,7 @@
     return result;
 }
 
-status_t AudioParameter::getFloat(const String8& key, float& value)
+status_t AudioParameter::getFloat(const String8& key, float& value) const
 {
     String8 str8;
     status_t result = get(key, str8);
@@ -169,7 +189,17 @@
     return result;
 }
 
-status_t AudioParameter::getAt(size_t index, String8& key, String8& value)
+status_t AudioParameter::getAt(size_t index, String8& key) const
+{
+    if (mParameters.size() > index) {
+        key = mParameters.keyAt(index);
+        return NO_ERROR;
+    } else {
+        return BAD_VALUE;
+    }
+}
+
+status_t AudioParameter::getAt(size_t index, String8& key, String8& value) const
 {
     if (mParameters.size() > index) {
         key = mParameters.keyAt(index);
diff --git a/media/libmedia/BufferingSettings.cpp b/media/libmedia/BufferingSettings.cpp
new file mode 100644
index 0000000..a69497e
--- /dev/null
+++ b/media/libmedia/BufferingSettings.cpp
@@ -0,0 +1,94 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "BufferingSettings"
+//#define LOG_NDEBUG 0
+
+#include <binder/Parcel.h>
+
+#include <media/BufferingSettings.h>
+
+namespace android {
+
+// static
+bool BufferingSettings::IsValidBufferingMode(int mode) {
+    return (mode >= BUFFERING_MODE_NONE && mode < BUFFERING_MODE_COUNT);
+}
+
+// static
+bool BufferingSettings::IsTimeBasedBufferingMode(int mode) {
+    return (mode == BUFFERING_MODE_TIME_ONLY || mode == BUFFERING_MODE_TIME_THEN_SIZE);
+}
+
+// static
+bool BufferingSettings::IsSizeBasedBufferingMode(int mode) {
+    return (mode == BUFFERING_MODE_SIZE_ONLY || mode == BUFFERING_MODE_TIME_THEN_SIZE);
+}
+
+BufferingSettings::BufferingSettings()
+        : mInitialBufferingMode(BUFFERING_MODE_NONE),
+          mRebufferingMode(BUFFERING_MODE_NONE),
+          mInitialWatermarkMs(kNoWatermark),
+          mInitialWatermarkKB(kNoWatermark),
+          mRebufferingWatermarkLowMs(kNoWatermark),
+          mRebufferingWatermarkHighMs(kNoWatermark),
+          mRebufferingWatermarkLowKB(kNoWatermark),
+          mRebufferingWatermarkHighKB(kNoWatermark) { }
+
+status_t BufferingSettings::readFromParcel(const Parcel* parcel) {
+    if (parcel == nullptr) {
+        return BAD_VALUE;
+    }
+    mInitialBufferingMode = (BufferingMode)parcel->readInt32();
+    mRebufferingMode = (BufferingMode)parcel->readInt32();
+    mInitialWatermarkMs = parcel->readInt32();
+    mInitialWatermarkKB = parcel->readInt32();
+    mRebufferingWatermarkLowMs = parcel->readInt32();
+    mRebufferingWatermarkHighMs = parcel->readInt32();
+    mRebufferingWatermarkLowKB = parcel->readInt32();
+    mRebufferingWatermarkHighKB = parcel->readInt32();
+
+    return OK;
+}
+
+status_t BufferingSettings::writeToParcel(Parcel* parcel) const {
+    if (parcel == nullptr) {
+        return BAD_VALUE;
+    }
+    parcel->writeInt32(mInitialBufferingMode);
+    parcel->writeInt32(mRebufferingMode);
+    parcel->writeInt32(mInitialWatermarkMs);
+    parcel->writeInt32(mInitialWatermarkKB);
+    parcel->writeInt32(mRebufferingWatermarkLowMs);
+    parcel->writeInt32(mRebufferingWatermarkHighMs);
+    parcel->writeInt32(mRebufferingWatermarkLowKB);
+    parcel->writeInt32(mRebufferingWatermarkHighKB);
+
+    return OK;
+}
+
+String8 BufferingSettings::toString() const {
+    String8 s;
+    s.appendFormat("initialMode(%d), rebufferingMode(%d), "
+            "initialMarks(%d ms, %d KB), rebufferingMarks(%d, %d)ms, (%d, %d)KB",
+            mInitialBufferingMode, mRebufferingMode,
+            mInitialWatermarkMs, mInitialWatermarkKB,
+            mRebufferingWatermarkLowMs, mRebufferingWatermarkHighMs,
+            mRebufferingWatermarkLowKB, mRebufferingWatermarkHighKB);
+    return s;
+}
+
+} // namespace android
diff --git a/media/libmedia/ICrypto.cpp b/media/libmedia/ICrypto.cpp
deleted file mode 100644
index 7b261be..0000000
--- a/media/libmedia/ICrypto.cpp
+++ /dev/null
@@ -1,421 +0,0 @@
-/*
- * Copyright (C) 2012 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-//#define LOG_NDEBUG 0
-#define LOG_TAG "ICrypto"
-#include <utils/Log.h>
-
-#include <binder/Parcel.h>
-#include <binder/IMemory.h>
-#include <media/ICrypto.h>
-#include <media/stagefright/MediaErrors.h>
-#include <media/stagefright/foundation/ADebug.h>
-#include <media/stagefright/foundation/AString.h>
-
-namespace android {
-
-enum {
-    INIT_CHECK = IBinder::FIRST_CALL_TRANSACTION,
-    IS_CRYPTO_SUPPORTED,
-    CREATE_PLUGIN,
-    DESTROY_PLUGIN,
-    REQUIRES_SECURE_COMPONENT,
-    DECRYPT,
-    NOTIFY_RESOLUTION,
-    SET_MEDIADRM_SESSION,
-};
-
-struct BpCrypto : public BpInterface<ICrypto> {
-    explicit BpCrypto(const sp<IBinder> &impl)
-        : BpInterface<ICrypto>(impl) {
-    }
-
-    virtual status_t initCheck() const {
-        Parcel data, reply;
-        data.writeInterfaceToken(ICrypto::getInterfaceDescriptor());
-        remote()->transact(INIT_CHECK, data, &reply);
-
-        return reply.readInt32();
-    }
-
-    virtual bool isCryptoSchemeSupported(const uint8_t uuid[16]) {
-        Parcel data, reply;
-        data.writeInterfaceToken(ICrypto::getInterfaceDescriptor());
-        data.write(uuid, 16);
-        remote()->transact(IS_CRYPTO_SUPPORTED, data, &reply);
-
-        return reply.readInt32() != 0;
-    }
-
-    virtual status_t createPlugin(
-            const uint8_t uuid[16], const void *opaqueData, size_t opaqueSize) {
-        Parcel data, reply;
-        data.writeInterfaceToken(ICrypto::getInterfaceDescriptor());
-        data.write(uuid, 16);
-        data.writeInt32(opaqueSize);
-
-        if (opaqueSize > 0) {
-            data.write(opaqueData, opaqueSize);
-        }
-
-        remote()->transact(CREATE_PLUGIN, data, &reply);
-
-        return reply.readInt32();
-    }
-
-    virtual status_t destroyPlugin() {
-        Parcel data, reply;
-        data.writeInterfaceToken(ICrypto::getInterfaceDescriptor());
-        remote()->transact(DESTROY_PLUGIN, data, &reply);
-
-        return reply.readInt32();
-    }
-
-    virtual bool requiresSecureDecoderComponent(
-            const char *mime) const {
-        Parcel data, reply;
-        data.writeInterfaceToken(ICrypto::getInterfaceDescriptor());
-        data.writeCString(mime);
-        remote()->transact(REQUIRES_SECURE_COMPONENT, data, &reply);
-
-        return reply.readInt32() != 0;
-    }
-
-    virtual ssize_t decrypt(
-            DestinationType dstType,
-            const uint8_t key[16],
-            const uint8_t iv[16],
-            CryptoPlugin::Mode mode, const CryptoPlugin::Pattern &pattern,
-            const sp<IMemory> &sharedBuffer, size_t offset,
-            const CryptoPlugin::SubSample *subSamples, size_t numSubSamples,
-            void *dstPtr,
-            AString *errorDetailMsg) {
-        Parcel data, reply;
-        data.writeInterfaceToken(ICrypto::getInterfaceDescriptor());
-        data.writeInt32((int32_t)dstType);
-        data.writeInt32(mode);
-        data.writeInt32(pattern.mEncryptBlocks);
-        data.writeInt32(pattern.mSkipBlocks);
-
-        static const uint8_t kDummy[16] = { 0 };
-
-        if (key == NULL) {
-            key = kDummy;
-        }
-
-        if (iv == NULL) {
-            iv = kDummy;
-        }
-
-        data.write(key, 16);
-        data.write(iv, 16);
-
-        size_t totalSize = 0;
-        for (size_t i = 0; i < numSubSamples; ++i) {
-            totalSize += subSamples[i].mNumBytesOfEncryptedData;
-            totalSize += subSamples[i].mNumBytesOfClearData;
-        }
-
-        data.writeInt32(totalSize);
-        data.writeStrongBinder(IInterface::asBinder(sharedBuffer));
-        data.writeInt32(offset);
-
-        data.writeInt32(numSubSamples);
-        data.write(subSamples, sizeof(CryptoPlugin::SubSample) * numSubSamples);
-
-        if (dstType == kDestinationTypeNativeHandle) {
-            data.writeNativeHandle(static_cast<native_handle_t *>(dstPtr));
-        } else if (dstType == kDestinationTypeOpaqueHandle) {
-            data.writeInt64(static_cast<uint64_t>(reinterpret_cast<uintptr_t>(dstPtr)));
-        } else {
-            dstType = kDestinationTypeVmPointer;
-        }
-
-        remote()->transact(DECRYPT, data, &reply);
-
-        ssize_t result = reply.readInt32();
-
-        if (isCryptoError(result)) {
-            errorDetailMsg->setTo(reply.readCString());
-        } else if (dstType == kDestinationTypeVmPointer) {
-            // For the non-secure case, copy the decrypted
-            // data from shared memory to its final destination
-            memcpy(dstPtr, sharedBuffer->pointer(), result);
-        }
-
-        return result;
-    }
-
-    virtual void notifyResolution(
-        uint32_t width, uint32_t height) {
-        Parcel data, reply;
-        data.writeInterfaceToken(ICrypto::getInterfaceDescriptor());
-        data.writeInt32(width);
-        data.writeInt32(height);
-        remote()->transact(NOTIFY_RESOLUTION, data, &reply);
-    }
-
-    virtual status_t setMediaDrmSession(const Vector<uint8_t> &sessionId) {
-        Parcel data, reply;
-        data.writeInterfaceToken(ICrypto::getInterfaceDescriptor());
-
-        writeVector(data, sessionId);
-        remote()->transact(SET_MEDIADRM_SESSION, data, &reply);
-
-        return reply.readInt32();
-    }
-
-private:
-    void readVector(Parcel &reply, Vector<uint8_t> &vector) const {
-        uint32_t size = reply.readInt32();
-        vector.insertAt((size_t)0, size);
-        reply.read(vector.editArray(), size);
-    }
-
-    void writeVector(Parcel &data, Vector<uint8_t> const &vector) const {
-        data.writeInt32(vector.size());
-        data.write(vector.array(), vector.size());
-    }
-
-    DISALLOW_EVIL_CONSTRUCTORS(BpCrypto);
-};
-
-IMPLEMENT_META_INTERFACE(Crypto, "android.hardware.ICrypto");
-
-////////////////////////////////////////////////////////////////////////////////
-
-void BnCrypto::readVector(const Parcel &data, Vector<uint8_t> &vector) const {
-    uint32_t size = data.readInt32();
-    vector.insertAt((size_t)0, size);
-    data.read(vector.editArray(), size);
-}
-
-void BnCrypto::writeVector(Parcel *reply, Vector<uint8_t> const &vector) const {
-    reply->writeInt32(vector.size());
-    reply->write(vector.array(), vector.size());
-}
-
-status_t BnCrypto::onTransact(
-    uint32_t code, const Parcel &data, Parcel *reply, uint32_t flags) {
-    switch (code) {
-        case INIT_CHECK:
-        {
-            CHECK_INTERFACE(ICrypto, data, reply);
-            reply->writeInt32(initCheck());
-
-            return OK;
-        }
-
-        case IS_CRYPTO_SUPPORTED:
-        {
-            CHECK_INTERFACE(ICrypto, data, reply);
-            uint8_t uuid[16];
-            data.read(uuid, sizeof(uuid));
-            reply->writeInt32(isCryptoSchemeSupported(uuid));
-
-            return OK;
-        }
-
-        case CREATE_PLUGIN:
-        {
-            CHECK_INTERFACE(ICrypto, data, reply);
-
-            uint8_t uuid[16];
-            data.read(uuid, sizeof(uuid));
-
-            size_t opaqueSize = data.readInt32();
-            void *opaqueData = NULL;
-
-            if (opaqueSize > 0) {
-                opaqueData = malloc(opaqueSize);
-                data.read(opaqueData, opaqueSize);
-            }
-
-            reply->writeInt32(createPlugin(uuid, opaqueData, opaqueSize));
-
-            if (opaqueData != NULL) {
-                free(opaqueData);
-                opaqueData = NULL;
-            }
-
-            return OK;
-        }
-
-        case DESTROY_PLUGIN:
-        {
-            CHECK_INTERFACE(ICrypto, data, reply);
-            reply->writeInt32(destroyPlugin());
-
-            return OK;
-        }
-
-        case REQUIRES_SECURE_COMPONENT:
-        {
-            CHECK_INTERFACE(ICrypto, data, reply);
-
-            const char *mime = data.readCString();
-            if (mime == NULL) {
-                reply->writeInt32(BAD_VALUE);
-            } else {
-                reply->writeInt32(requiresSecureDecoderComponent(mime));
-            }
-
-            return OK;
-        }
-
-        case DECRYPT:
-        {
-            CHECK_INTERFACE(ICrypto, data, reply);
-
-            DestinationType dstType = (DestinationType)data.readInt32();
-            CryptoPlugin::Mode mode = (CryptoPlugin::Mode)data.readInt32();
-            CryptoPlugin::Pattern pattern;
-            pattern.mEncryptBlocks = data.readInt32();
-            pattern.mSkipBlocks = data.readInt32();
-
-            uint8_t key[16];
-            data.read(key, sizeof(key));
-
-            uint8_t iv[16];
-            data.read(iv, sizeof(iv));
-
-            size_t totalSize = data.readInt32();
-            sp<IMemory> sharedBuffer =
-                interface_cast<IMemory>(data.readStrongBinder());
-            if (sharedBuffer == NULL) {
-                reply->writeInt32(BAD_VALUE);
-                return OK;
-            }
-            int32_t offset = data.readInt32();
-
-            int32_t numSubSamples = data.readInt32();
-
-            CryptoPlugin::SubSample *subSamples =
-                new CryptoPlugin::SubSample[numSubSamples];
-
-            data.read(
-                    subSamples,
-                    sizeof(CryptoPlugin::SubSample) * numSubSamples);
-
-            native_handle_t *nativeHandle = NULL;
-            void *secureBufferId = NULL, *dstPtr;
-            if (dstType == kDestinationTypeNativeHandle) {
-                nativeHandle = data.readNativeHandle();
-                dstPtr = static_cast<void *>(nativeHandle);
-            } else if (dstType == kDestinationTypeOpaqueHandle) {
-                secureBufferId = reinterpret_cast<void *>(static_cast<uintptr_t>(data.readInt64()));
-                dstPtr = secureBufferId;
-            } else {
-                dstType = kDestinationTypeVmPointer;
-                dstPtr = malloc(totalSize);
-            }
-
-            AString errorDetailMsg;
-            ssize_t result;
-
-            size_t sumSubsampleSizes = 0;
-            bool overflow = false;
-            for (int32_t i = 0; i < numSubSamples; ++i) {
-                CryptoPlugin::SubSample &ss = subSamples[i];
-                if (sumSubsampleSizes <= SIZE_MAX - ss.mNumBytesOfEncryptedData) {
-                    sumSubsampleSizes += ss.mNumBytesOfEncryptedData;
-                } else {
-                    overflow = true;
-                }
-                if (sumSubsampleSizes <= SIZE_MAX - ss.mNumBytesOfClearData) {
-                    sumSubsampleSizes += ss.mNumBytesOfClearData;
-                } else {
-                    overflow = true;
-                }
-            }
-
-            if (overflow || sumSubsampleSizes != totalSize) {
-                result = -EINVAL;
-            } else if (totalSize > sharedBuffer->size()) {
-                result = -EINVAL;
-            } else if ((size_t)offset > sharedBuffer->size() - totalSize) {
-                result = -EINVAL;
-            } else {
-                result = decrypt(
-                    dstType,
-                    key,
-                    iv,
-                    mode, pattern,
-                    sharedBuffer, offset,
-                    subSamples, numSubSamples,
-                    dstPtr,
-                    &errorDetailMsg);
-            }
-
-            reply->writeInt32(result);
-
-            if (isCryptoError(result)) {
-                reply->writeCString(errorDetailMsg.c_str());
-            }
-
-            if (dstType == kDestinationTypeVmPointer) {
-                if (result >= 0) {
-                    CHECK_LE(result, static_cast<ssize_t>(totalSize));
-                    // For the non-secure case, pass the decrypted
-                    // data back via the shared buffer rather than
-                    // copying it separately over binder to avoid
-                    // binder's 1MB limit.
-                    memcpy(sharedBuffer->pointer(), dstPtr, result);
-                }
-                free(dstPtr);
-                dstPtr = NULL;
-            } else if (dstType == kDestinationTypeNativeHandle) {
-                int err;
-                if ((err = native_handle_close(nativeHandle)) < 0) {
-                    ALOGW("secure buffer native_handle_close failed: %d", err);
-                }
-                if ((err = native_handle_delete(nativeHandle)) < 0) {
-                    ALOGW("secure buffer native_handle_delete failed: %d", err);
-                }
-            }
-
-            delete[] subSamples;
-            subSamples = NULL;
-
-            return OK;
-        }
-
-        case NOTIFY_RESOLUTION:
-        {
-            CHECK_INTERFACE(ICrypto, data, reply);
-
-            int32_t width = data.readInt32();
-            int32_t height = data.readInt32();
-            notifyResolution(width, height);
-
-            return OK;
-        }
-
-        case SET_MEDIADRM_SESSION:
-        {
-            CHECK_INTERFACE(IDrm, data, reply);
-            Vector<uint8_t> sessionId;
-            readVector(data, sessionId);
-            reply->writeInt32(setMediaDrmSession(sessionId));
-            return OK;
-        }
-
-        default:
-            return BBinder::onTransact(code, data, reply, flags);
-    }
-}
-
-}  // namespace android
diff --git a/media/libmedia/IDataSource.cpp b/media/libmedia/IDataSource.cpp
index 7df3b65..31c85af 100644
--- a/media/libmedia/IDataSource.cpp
+++ b/media/libmedia/IDataSource.cpp
@@ -55,8 +55,16 @@
         data.writeInterfaceToken(IDataSource::getInterfaceDescriptor());
         data.writeInt64(offset);
         data.writeInt64(size);
-        remote()->transact(READ_AT, data, &reply);
-        return reply.readInt64();
+        status_t err = remote()->transact(READ_AT, data, &reply);
+        if (err != OK) {
+            return err;
+        }
+        int64_t value = 0;
+        err = reply.readInt64(&value);
+        if (err != OK) {
+            return err;
+        }
+        return (ssize_t)value;
     }
 
     virtual status_t getSize(off64_t* size) {
diff --git a/media/libmedia/IDrm.cpp b/media/libmedia/IDrm.cpp
deleted file mode 100644
index c4558c6..0000000
--- a/media/libmedia/IDrm.cpp
+++ /dev/null
@@ -1,928 +0,0 @@
-/*
- * Copyright (C) 2013 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-//#define LOG_NDEBUG 0
-#define LOG_TAG "IDrm"
-#include <utils/Log.h>
-
-#include <binder/Parcel.h>
-#include <media/IDrm.h>
-#include <media/stagefright/MediaErrors.h>
-#include <media/stagefright/foundation/ADebug.h>
-#include <media/stagefright/foundation/AString.h>
-
-namespace android {
-
-enum {
-    INIT_CHECK = IBinder::FIRST_CALL_TRANSACTION,
-    IS_CRYPTO_SUPPORTED,
-    CREATE_PLUGIN,
-    DESTROY_PLUGIN,
-    OPEN_SESSION,
-    CLOSE_SESSION,
-    GET_KEY_REQUEST,
-    PROVIDE_KEY_RESPONSE,
-    REMOVE_KEYS,
-    RESTORE_KEYS,
-    QUERY_KEY_STATUS,
-    GET_PROVISION_REQUEST,
-    PROVIDE_PROVISION_RESPONSE,
-    GET_SECURE_STOPS,
-    RELEASE_SECURE_STOPS,
-    GET_PROPERTY_STRING,
-    GET_PROPERTY_BYTE_ARRAY,
-    SET_PROPERTY_STRING,
-    SET_PROPERTY_BYTE_ARRAY,
-    SET_CIPHER_ALGORITHM,
-    SET_MAC_ALGORITHM,
-    ENCRYPT,
-    DECRYPT,
-    SIGN,
-    SIGN_RSA,
-    VERIFY,
-    SET_LISTENER,
-    GET_SECURE_STOP,
-    RELEASE_ALL_SECURE_STOPS
-};
-
-struct BpDrm : public BpInterface<IDrm> {
-    explicit BpDrm(const sp<IBinder> &impl)
-        : BpInterface<IDrm>(impl) {
-    }
-
-    virtual status_t initCheck() const {
-        Parcel data, reply;
-        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
-        status_t status = remote()->transact(INIT_CHECK, data, &reply);
-        if (status != OK) {
-            return status;
-        }
-
-        return reply.readInt32();
-    }
-
-    virtual bool isCryptoSchemeSupported(const uint8_t uuid[16], const String8 &mimeType) {
-        Parcel data, reply;
-        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
-        data.write(uuid, 16);
-        data.writeString8(mimeType);
-        status_t status = remote()->transact(IS_CRYPTO_SUPPORTED, data, &reply);
-        if (status != OK) {
-            ALOGE("isCryptoSchemeSupported: binder call failed: %d", status);
-            return false;
-        }
-
-        return reply.readInt32() != 0;
-    }
-
-    virtual status_t createPlugin(const uint8_t uuid[16]) {
-        Parcel data, reply;
-        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
-        data.write(uuid, 16);
-
-        status_t status = remote()->transact(CREATE_PLUGIN, data, &reply);
-        if (status != OK) {
-            return status;
-        }
-
-        return reply.readInt32();
-    }
-
-    virtual status_t destroyPlugin() {
-        Parcel data, reply;
-        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
-        status_t status = remote()->transact(DESTROY_PLUGIN, data, &reply);
-        if (status != OK) {
-            return status;
-        }
-
-        return reply.readInt32();
-    }
-
-    virtual status_t openSession(Vector<uint8_t> &sessionId) {
-        Parcel data, reply;
-        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
-
-        status_t status = remote()->transact(OPEN_SESSION, data, &reply);
-        if (status != OK) {
-            return status;
-        }
-        readVector(reply, sessionId);
-
-        return reply.readInt32();
-    }
-
-    virtual status_t closeSession(Vector<uint8_t> const &sessionId) {
-        Parcel data, reply;
-        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
-
-        writeVector(data, sessionId);
-        status_t status = remote()->transact(CLOSE_SESSION, data, &reply);
-        if (status != OK) {
-            return status;
-        }
-
-        return reply.readInt32();
-    }
-
-    virtual status_t
-        getKeyRequest(Vector<uint8_t> const &sessionId,
-                      Vector<uint8_t> const &initData,
-                      String8 const &mimeType, DrmPlugin::KeyType keyType,
-                      KeyedVector<String8, String8> const &optionalParameters,
-                      Vector<uint8_t> &request, String8 &defaultUrl,
-                      DrmPlugin::KeyRequestType *keyRequestType) {
-        Parcel data, reply;
-        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
-
-        writeVector(data, sessionId);
-        writeVector(data, initData);
-        data.writeString8(mimeType);
-        data.writeInt32((uint32_t)keyType);
-
-        data.writeInt32(optionalParameters.size());
-        for (size_t i = 0; i < optionalParameters.size(); ++i) {
-            data.writeString8(optionalParameters.keyAt(i));
-            data.writeString8(optionalParameters.valueAt(i));
-        }
-
-        status_t status = remote()->transact(GET_KEY_REQUEST, data, &reply);
-        if (status != OK) {
-            return status;
-        }
-
-        readVector(reply, request);
-        defaultUrl = reply.readString8();
-        *keyRequestType = static_cast<DrmPlugin::KeyRequestType>(reply.readInt32());
-
-        return reply.readInt32();
-    }
-
-    virtual status_t provideKeyResponse(Vector<uint8_t> const &sessionId,
-                                        Vector<uint8_t> const &response,
-                                        Vector<uint8_t> &keySetId) {
-        Parcel data, reply;
-        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
-        writeVector(data, sessionId);
-        writeVector(data, response);
-
-        status_t status = remote()->transact(PROVIDE_KEY_RESPONSE, data, &reply);
-        if (status != OK) {
-            return status;
-        }
-
-        readVector(reply, keySetId);
-
-        return reply.readInt32();
-    }
-
-    virtual status_t removeKeys(Vector<uint8_t> const &keySetId) {
-        Parcel data, reply;
-        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
-
-        writeVector(data, keySetId);
-        status_t status = remote()->transact(REMOVE_KEYS, data, &reply);
-        if (status != OK) {
-            return status;
-        }
-
-        return reply.readInt32();
-    }
-
-    virtual status_t restoreKeys(Vector<uint8_t> const &sessionId,
-                                 Vector<uint8_t> const &keySetId) {
-        Parcel data, reply;
-        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
-
-        writeVector(data, sessionId);
-        writeVector(data, keySetId);
-        status_t status = remote()->transact(RESTORE_KEYS, data, &reply);
-        if (status != OK) {
-            return status;
-        }
-
-        return reply.readInt32();
-    }
-
-    virtual status_t queryKeyStatus(Vector<uint8_t> const &sessionId,
-                                        KeyedVector<String8, String8> &infoMap) const {
-        Parcel data, reply;
-        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
-
-        writeVector(data, sessionId);
-        status_t status = remote()->transact(QUERY_KEY_STATUS, data, &reply);
-        if (status != OK) {
-            return status;
-        }
-
-        infoMap.clear();
-        size_t count = reply.readInt32();
-        for (size_t i = 0; i < count; i++) {
-            String8 key = reply.readString8();
-            String8 value = reply.readString8();
-            infoMap.add(key, value);
-        }
-        return reply.readInt32();
-    }
-
-    virtual status_t getProvisionRequest(String8 const &certType,
-                                         String8 const &certAuthority,
-                                         Vector<uint8_t> &request,
-                                         String8 &defaultUrl) {
-        Parcel data, reply;
-        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
-
-        data.writeString8(certType);
-        data.writeString8(certAuthority);
-        status_t status = remote()->transact(GET_PROVISION_REQUEST, data, &reply);
-        if (status != OK) {
-            return status;
-        }
-
-        readVector(reply, request);
-        defaultUrl = reply.readString8();
-
-        return reply.readInt32();
-    }
-
-    virtual status_t provideProvisionResponse(Vector<uint8_t> const &response,
-                                              Vector<uint8_t> &certificate,
-                                              Vector<uint8_t> &wrappedKey) {
-        Parcel data, reply;
-        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
-
-        writeVector(data, response);
-        status_t status = remote()->transact(PROVIDE_PROVISION_RESPONSE, data, &reply);
-        if (status != OK) {
-            return status;
-        }
-
-        readVector(reply, certificate);
-        readVector(reply, wrappedKey);
-
-        return reply.readInt32();
-    }
-
-    virtual status_t getSecureStops(List<Vector<uint8_t> > &secureStops) {
-        Parcel data, reply;
-        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
-
-        status_t status = remote()->transact(GET_SECURE_STOPS, data, &reply);
-        if (status != OK) {
-            return status;
-        }
-
-        secureStops.clear();
-        uint32_t count = reply.readInt32();
-        for (size_t i = 0; i < count; i++) {
-            Vector<uint8_t> secureStop;
-            readVector(reply, secureStop);
-            secureStops.push_back(secureStop);
-        }
-        return reply.readInt32();
-    }
-
-    virtual status_t getSecureStop(Vector<uint8_t> const &ssid, Vector<uint8_t> &secureStop) {
-        Parcel data, reply;
-        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
-
-        writeVector(data, ssid);
-        status_t status = remote()->transact(GET_SECURE_STOP, data, &reply);
-        if (status != OK) {
-            return status;
-        }
-
-        readVector(reply, secureStop);
-        return reply.readInt32();
-    }
-
-    virtual status_t releaseSecureStops(Vector<uint8_t> const &ssRelease) {
-        Parcel data, reply;
-        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
-
-        writeVector(data, ssRelease);
-        status_t status = remote()->transact(RELEASE_SECURE_STOPS, data, &reply);
-        if (status != OK) {
-            return status;
-        }
-
-        return reply.readInt32();
-    }
-
-    virtual status_t releaseAllSecureStops() {
-        Parcel data, reply;
-        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
-
-        status_t status = remote()->transact(RELEASE_ALL_SECURE_STOPS, data, &reply);
-        if (status != OK) {
-            return status;
-        }
-
-        return reply.readInt32();
-    }
-
-    virtual status_t getPropertyString(String8 const &name, String8 &value) const {
-        Parcel data, reply;
-        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
-
-        data.writeString8(name);
-        status_t status = remote()->transact(GET_PROPERTY_STRING, data, &reply);
-        if (status != OK) {
-            return status;
-        }
-
-        value = reply.readString8();
-        return reply.readInt32();
-    }
-
-    virtual status_t getPropertyByteArray(String8 const &name, Vector<uint8_t> &value) const {
-        Parcel data, reply;
-        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
-
-        data.writeString8(name);
-        status_t status = remote()->transact(GET_PROPERTY_BYTE_ARRAY, data, &reply);
-        if (status != OK) {
-            return status;
-        }
-
-        readVector(reply, value);
-        return reply.readInt32();
-    }
-
-    virtual status_t setPropertyString(String8 const &name, String8 const &value) const {
-        Parcel data, reply;
-        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
-
-        data.writeString8(name);
-        data.writeString8(value);
-        status_t status = remote()->transact(SET_PROPERTY_STRING, data, &reply);
-        if (status != OK) {
-            return status;
-        }
-
-        return reply.readInt32();
-    }
-
-    virtual status_t setPropertyByteArray(String8 const &name,
-                                          Vector<uint8_t> const &value) const {
-        Parcel data, reply;
-        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
-
-        data.writeString8(name);
-        writeVector(data, value);
-        status_t status = remote()->transact(SET_PROPERTY_BYTE_ARRAY, data, &reply);
-        if (status != OK) {
-            return status;
-        }
-
-        return reply.readInt32();
-    }
-
-
-    virtual status_t setCipherAlgorithm(Vector<uint8_t> const &sessionId,
-                                        String8 const &algorithm) {
-        Parcel data, reply;
-        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
-
-        writeVector(data, sessionId);
-        data.writeString8(algorithm);
-        status_t status = remote()->transact(SET_CIPHER_ALGORITHM, data, &reply);
-        if (status != OK) {
-            return status;
-        }
-        return reply.readInt32();
-    }
-
-    virtual status_t setMacAlgorithm(Vector<uint8_t> const &sessionId,
-                                     String8 const &algorithm) {
-        Parcel data, reply;
-        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
-
-        writeVector(data, sessionId);
-        data.writeString8(algorithm);
-        status_t status = remote()->transact(SET_MAC_ALGORITHM, data, &reply);
-        if (status != OK) {
-            return status;
-        }
-        return reply.readInt32();
-    }
-
-    virtual status_t encrypt(Vector<uint8_t> const &sessionId,
-                             Vector<uint8_t> const &keyId,
-                             Vector<uint8_t> const &input,
-                             Vector<uint8_t> const &iv,
-                             Vector<uint8_t> &output) {
-        Parcel data, reply;
-        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
-
-        writeVector(data, sessionId);
-        writeVector(data, keyId);
-        writeVector(data, input);
-        writeVector(data, iv);
-
-        status_t status = remote()->transact(ENCRYPT, data, &reply);
-        if (status != OK) {
-            return status;
-        }
-        readVector(reply, output);
-
-        return reply.readInt32();
-    }
-
-    virtual status_t decrypt(Vector<uint8_t> const &sessionId,
-                             Vector<uint8_t> const &keyId,
-                             Vector<uint8_t> const &input,
-                             Vector<uint8_t> const &iv,
-                             Vector<uint8_t> &output) {
-        Parcel data, reply;
-        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
-
-        writeVector(data, sessionId);
-        writeVector(data, keyId);
-        writeVector(data, input);
-        writeVector(data, iv);
-
-        status_t status = remote()->transact(DECRYPT, data, &reply);
-        if (status != OK) {
-            return status;
-        }
-        readVector(reply, output);
-
-        return reply.readInt32();
-    }
-
-    virtual status_t sign(Vector<uint8_t> const &sessionId,
-                          Vector<uint8_t> const &keyId,
-                          Vector<uint8_t> const &message,
-                          Vector<uint8_t> &signature) {
-        Parcel data, reply;
-        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
-
-        writeVector(data, sessionId);
-        writeVector(data, keyId);
-        writeVector(data, message);
-
-        status_t status = remote()->transact(SIGN, data, &reply);
-        if (status != OK) {
-            return status;
-        }
-        readVector(reply, signature);
-
-        return reply.readInt32();
-    }
-
-    virtual status_t verify(Vector<uint8_t> const &sessionId,
-                            Vector<uint8_t> const &keyId,
-                            Vector<uint8_t> const &message,
-                            Vector<uint8_t> const &signature,
-                            bool &match) {
-        Parcel data, reply;
-        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
-
-        writeVector(data, sessionId);
-        writeVector(data, keyId);
-        writeVector(data, message);
-        writeVector(data, signature);
-
-        status_t status = remote()->transact(VERIFY, data, &reply);
-        if (status != OK) {
-            return status;
-        }
-        match = (bool)reply.readInt32();
-        return reply.readInt32();
-    }
-
-    virtual status_t signRSA(Vector<uint8_t> const &sessionId,
-                             String8 const &algorithm,
-                             Vector<uint8_t> const &message,
-                             Vector<uint8_t> const &wrappedKey,
-                             Vector<uint8_t> &signature) {
-        Parcel data, reply;
-        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
-
-        writeVector(data, sessionId);
-        data.writeString8(algorithm);
-        writeVector(data, message);
-        writeVector(data, wrappedKey);
-
-        status_t status = remote()->transact(SIGN_RSA, data, &reply);
-        if (status != OK) {
-            return status;
-        }
-        readVector(reply, signature);
-
-        return reply.readInt32();
-    }
-
-    virtual status_t setListener(const sp<IDrmClient>& listener) {
-        Parcel data, reply;
-        data.writeInterfaceToken(IDrm::getInterfaceDescriptor());
-        data.writeStrongBinder(IInterface::asBinder(listener));
-        status_t status = remote()->transact(SET_LISTENER, data, &reply);
-        if (status != OK) {
-            return status;
-        }
-        return reply.readInt32();
-    }
-
-private:
-    void readVector(Parcel &reply, Vector<uint8_t> &vector) const {
-        uint32_t size = reply.readInt32();
-        vector.insertAt((size_t)0, size);
-        reply.read(vector.editArray(), size);
-    }
-
-    void writeVector(Parcel &data, Vector<uint8_t> const &vector) const {
-        data.writeInt32(vector.size());
-        data.write(vector.array(), vector.size());
-    }
-
-    DISALLOW_EVIL_CONSTRUCTORS(BpDrm);
-};
-
-IMPLEMENT_META_INTERFACE(Drm, "android.drm.IDrm");
-
-////////////////////////////////////////////////////////////////////////////////
-
-void BnDrm::readVector(const Parcel &data, Vector<uint8_t> &vector) const {
-    uint32_t size = data.readInt32();
-    vector.insertAt((size_t)0, size);
-    data.read(vector.editArray(), size);
-}
-
-void BnDrm::writeVector(Parcel *reply, Vector<uint8_t> const &vector) const {
-    reply->writeInt32(vector.size());
-    reply->write(vector.array(), vector.size());
-}
-
-status_t BnDrm::onTransact(
-    uint32_t code, const Parcel &data, Parcel *reply, uint32_t flags) {
-    switch (code) {
-        case INIT_CHECK:
-        {
-            CHECK_INTERFACE(IDrm, data, reply);
-            reply->writeInt32(initCheck());
-            return OK;
-        }
-
-        case IS_CRYPTO_SUPPORTED:
-        {
-            CHECK_INTERFACE(IDrm, data, reply);
-            uint8_t uuid[16];
-            data.read(uuid, sizeof(uuid));
-            String8 mimeType = data.readString8();
-            reply->writeInt32(isCryptoSchemeSupported(uuid, mimeType));
-
-            return OK;
-        }
-
-        case CREATE_PLUGIN:
-        {
-            CHECK_INTERFACE(IDrm, data, reply);
-            uint8_t uuid[16];
-            data.read(uuid, sizeof(uuid));
-            reply->writeInt32(createPlugin(uuid));
-            return OK;
-        }
-
-        case DESTROY_PLUGIN:
-        {
-            CHECK_INTERFACE(IDrm, data, reply);
-            reply->writeInt32(destroyPlugin());
-            return OK;
-        }
-
-        case OPEN_SESSION:
-        {
-            CHECK_INTERFACE(IDrm, data, reply);
-            Vector<uint8_t> sessionId;
-            status_t result = openSession(sessionId);
-            writeVector(reply, sessionId);
-            reply->writeInt32(result);
-            return OK;
-        }
-
-        case CLOSE_SESSION:
-        {
-            CHECK_INTERFACE(IDrm, data, reply);
-            Vector<uint8_t> sessionId;
-            readVector(data, sessionId);
-            reply->writeInt32(closeSession(sessionId));
-            return OK;
-        }
-
-        case GET_KEY_REQUEST:
-        {
-            CHECK_INTERFACE(IDrm, data, reply);
-            Vector<uint8_t> sessionId, initData;
-
-            readVector(data, sessionId);
-            readVector(data, initData);
-            String8 mimeType = data.readString8();
-            DrmPlugin::KeyType keyType = (DrmPlugin::KeyType)data.readInt32();
-
-            KeyedVector<String8, String8> optionalParameters;
-            uint32_t count = data.readInt32();
-            for (size_t i = 0; i < count; ++i) {
-                String8 key, value;
-                key = data.readString8();
-                value = data.readString8();
-                optionalParameters.add(key, value);
-            }
-
-            Vector<uint8_t> request;
-            String8 defaultUrl;
-            DrmPlugin::KeyRequestType keyRequestType = DrmPlugin::kKeyRequestType_Unknown;
-
-            status_t result = getKeyRequest(sessionId, initData, mimeType,
-                    keyType, optionalParameters, request, defaultUrl,
-                    &keyRequestType);
-
-            writeVector(reply, request);
-            reply->writeString8(defaultUrl);
-            reply->writeInt32(static_cast<int32_t>(keyRequestType));
-            reply->writeInt32(result);
-            return OK;
-        }
-
-        case PROVIDE_KEY_RESPONSE:
-        {
-            CHECK_INTERFACE(IDrm, data, reply);
-            Vector<uint8_t> sessionId, response, keySetId;
-            readVector(data, sessionId);
-            readVector(data, response);
-            uint32_t result = provideKeyResponse(sessionId, response, keySetId);
-            writeVector(reply, keySetId);
-            reply->writeInt32(result);
-            return OK;
-        }
-
-        case REMOVE_KEYS:
-        {
-            CHECK_INTERFACE(IDrm, data, reply);
-            Vector<uint8_t> keySetId;
-            readVector(data, keySetId);
-            reply->writeInt32(removeKeys(keySetId));
-            return OK;
-        }
-
-        case RESTORE_KEYS:
-        {
-            CHECK_INTERFACE(IDrm, data, reply);
-            Vector<uint8_t> sessionId, keySetId;
-            readVector(data, sessionId);
-            readVector(data, keySetId);
-            reply->writeInt32(restoreKeys(sessionId, keySetId));
-            return OK;
-        }
-
-        case QUERY_KEY_STATUS:
-        {
-            CHECK_INTERFACE(IDrm, data, reply);
-            Vector<uint8_t> sessionId;
-            readVector(data, sessionId);
-            KeyedVector<String8, String8> infoMap;
-            status_t result = queryKeyStatus(sessionId, infoMap);
-            size_t count = infoMap.size();
-            reply->writeInt32(count);
-            for (size_t i = 0; i < count; ++i) {
-                reply->writeString8(infoMap.keyAt(i));
-                reply->writeString8(infoMap.valueAt(i));
-            }
-            reply->writeInt32(result);
-            return OK;
-        }
-
-        case GET_PROVISION_REQUEST:
-        {
-            CHECK_INTERFACE(IDrm, data, reply);
-            String8 certType = data.readString8();
-            String8 certAuthority = data.readString8();
-
-            Vector<uint8_t> request;
-            String8 defaultUrl;
-            status_t result = getProvisionRequest(certType, certAuthority,
-                                                  request, defaultUrl);
-            writeVector(reply, request);
-            reply->writeString8(defaultUrl);
-            reply->writeInt32(result);
-            return OK;
-        }
-
-        case PROVIDE_PROVISION_RESPONSE:
-        {
-            CHECK_INTERFACE(IDrm, data, reply);
-            Vector<uint8_t> response;
-            Vector<uint8_t> certificate;
-            Vector<uint8_t> wrappedKey;
-            readVector(data, response);
-            status_t result = provideProvisionResponse(response, certificate, wrappedKey);
-            writeVector(reply, certificate);
-            writeVector(reply, wrappedKey);
-            reply->writeInt32(result);
-            return OK;
-        }
-
-        case GET_SECURE_STOPS:
-        {
-            CHECK_INTERFACE(IDrm, data, reply);
-            List<Vector<uint8_t> > secureStops;
-            status_t result = getSecureStops(secureStops);
-            size_t count = secureStops.size();
-            reply->writeInt32(count);
-            List<Vector<uint8_t> >::iterator iter = secureStops.begin();
-            while(iter != secureStops.end()) {
-                size_t size = iter->size();
-                reply->writeInt32(size);
-                reply->write(iter->array(), iter->size());
-                iter++;
-            }
-            reply->writeInt32(result);
-            return OK;
-        }
-
-        case GET_SECURE_STOP:
-        {
-            CHECK_INTERFACE(IDrm, data, reply);
-            Vector<uint8_t> ssid, secureStop;
-            readVector(data, ssid);
-            status_t result = getSecureStop(ssid, secureStop);
-            writeVector(reply, secureStop);
-            reply->writeInt32(result);
-            return OK;
-        }
-
-        case RELEASE_SECURE_STOPS:
-        {
-            CHECK_INTERFACE(IDrm, data, reply);
-            Vector<uint8_t> ssRelease;
-            readVector(data, ssRelease);
-            reply->writeInt32(releaseSecureStops(ssRelease));
-            return OK;
-        }
-
-        case RELEASE_ALL_SECURE_STOPS:
-        {
-            CHECK_INTERFACE(IDrm, data, reply);
-            reply->writeInt32(releaseAllSecureStops());
-            return OK;
-        }
-
-        case GET_PROPERTY_STRING:
-        {
-            CHECK_INTERFACE(IDrm, data, reply);
-            String8 name = data.readString8();
-            String8 value;
-            status_t result = getPropertyString(name, value);
-            reply->writeString8(value);
-            reply->writeInt32(result);
-            return OK;
-        }
-
-        case GET_PROPERTY_BYTE_ARRAY:
-        {
-            CHECK_INTERFACE(IDrm, data, reply);
-            String8 name = data.readString8();
-            Vector<uint8_t> value;
-            status_t result = getPropertyByteArray(name, value);
-            writeVector(reply, value);
-            reply->writeInt32(result);
-            return OK;
-        }
-
-        case SET_PROPERTY_STRING:
-        {
-            CHECK_INTERFACE(IDrm, data, reply);
-            String8 name = data.readString8();
-            String8 value = data.readString8();
-            reply->writeInt32(setPropertyString(name, value));
-            return OK;
-        }
-
-        case SET_PROPERTY_BYTE_ARRAY:
-        {
-            CHECK_INTERFACE(IDrm, data, reply);
-            String8 name = data.readString8();
-            Vector<uint8_t> value;
-            readVector(data, value);
-            reply->writeInt32(setPropertyByteArray(name, value));
-            return OK;
-        }
-
-        case SET_CIPHER_ALGORITHM:
-        {
-            CHECK_INTERFACE(IDrm, data, reply);
-            Vector<uint8_t> sessionId;
-            readVector(data, sessionId);
-            String8 algorithm = data.readString8();
-            reply->writeInt32(setCipherAlgorithm(sessionId, algorithm));
-            return OK;
-        }
-
-        case SET_MAC_ALGORITHM:
-        {
-            CHECK_INTERFACE(IDrm, data, reply);
-            Vector<uint8_t> sessionId;
-            readVector(data, sessionId);
-            String8 algorithm = data.readString8();
-            reply->writeInt32(setMacAlgorithm(sessionId, algorithm));
-            return OK;
-        }
-
-        case ENCRYPT:
-        {
-            CHECK_INTERFACE(IDrm, data, reply);
-            Vector<uint8_t> sessionId, keyId, input, iv, output;
-            readVector(data, sessionId);
-            readVector(data, keyId);
-            readVector(data, input);
-            readVector(data, iv);
-            uint32_t result = encrypt(sessionId, keyId, input, iv, output);
-            writeVector(reply, output);
-            reply->writeInt32(result);
-            return OK;
-        }
-
-        case DECRYPT:
-        {
-            CHECK_INTERFACE(IDrm, data, reply);
-            Vector<uint8_t> sessionId, keyId, input, iv, output;
-            readVector(data, sessionId);
-            readVector(data, keyId);
-            readVector(data, input);
-            readVector(data, iv);
-            uint32_t result = decrypt(sessionId, keyId, input, iv, output);
-            writeVector(reply, output);
-            reply->writeInt32(result);
-            return OK;
-        }
-
-        case SIGN:
-        {
-            CHECK_INTERFACE(IDrm, data, reply);
-            Vector<uint8_t> sessionId, keyId, message, signature;
-            readVector(data, sessionId);
-            readVector(data, keyId);
-            readVector(data, message);
-            uint32_t result = sign(sessionId, keyId, message, signature);
-            writeVector(reply, signature);
-            reply->writeInt32(result);
-            return OK;
-        }
-
-        case VERIFY:
-        {
-            CHECK_INTERFACE(IDrm, data, reply);
-            Vector<uint8_t> sessionId, keyId, message, signature;
-            readVector(data, sessionId);
-            readVector(data, keyId);
-            readVector(data, message);
-            readVector(data, signature);
-            bool match = false;
-            uint32_t result = verify(sessionId, keyId, message, signature, match);
-            reply->writeInt32(match);
-            reply->writeInt32(result);
-            return OK;
-        }
-
-        case SIGN_RSA:
-        {
-            CHECK_INTERFACE(IDrm, data, reply);
-            Vector<uint8_t> sessionId, message, wrappedKey, signature;
-            readVector(data, sessionId);
-            String8 algorithm = data.readString8();
-            readVector(data, message);
-            readVector(data, wrappedKey);
-            uint32_t result = signRSA(sessionId, algorithm, message, wrappedKey, signature);
-            writeVector(reply, signature);
-            reply->writeInt32(result);
-            return OK;
-        }
-
-    case SET_LISTENER: {
-        CHECK_INTERFACE(IDrm, data, reply);
-        sp<IDrmClient> listener =
-            interface_cast<IDrmClient>(data.readStrongBinder());
-        reply->writeInt32(setListener(listener));
-        return NO_ERROR;
-    } break;
-
-    default:
-        return BBinder::onTransact(code, data, reply, flags);
-    }
-}
-
-}  // namespace android
diff --git a/media/libmedia/IMediaAnalyticsService.cpp b/media/libmedia/IMediaAnalyticsService.cpp
new file mode 100644
index 0000000..340cf19
--- /dev/null
+++ b/media/libmedia/IMediaAnalyticsService.cpp
@@ -0,0 +1,174 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "MediaAnalytics"
+
+#include <stdint.h>
+#include <inttypes.h>
+#include <sys/types.h>
+
+#include <binder/Parcel.h>
+#include <binder/IMemory.h>
+#include <binder/IPCThreadState.h>
+#include <media/IHDCP.h>
+#include <media/IMediaCodecList.h>
+#include <media/IMediaHTTPService.h>
+#include <media/IMediaPlayerService.h>
+#include <media/IMediaRecorder.h>
+#include <media/IOMX.h>
+#include <media/IRemoteDisplay.h>
+#include <media/IRemoteDisplayClient.h>
+#include <media/IStreamSource.h>
+
+#include <utils/Errors.h>  // for status_t
+#include <utils/List.h>
+#include <utils/Log.h>
+#include <utils/String8.h>
+
+#include <media/MediaAnalyticsItem.h>
+#include <media/IMediaAnalyticsService.h>
+
+#define DEBUGGING               0
+#define DEBUGGING_FLOW          0
+#define DEBUGGING_RETURNS       0
+
+namespace android {
+
+enum {
+    GENERATE_UNIQUE_SESSIONID = IBinder::FIRST_CALL_TRANSACTION,
+    SUBMIT_ITEM,
+};
+
+class BpMediaAnalyticsService: public BpInterface<IMediaAnalyticsService>
+{
+public:
+    explicit BpMediaAnalyticsService(const sp<IBinder>& impl)
+        : BpInterface<IMediaAnalyticsService>(impl)
+    {
+    }
+
+    virtual MediaAnalyticsItem::SessionID_t generateUniqueSessionID() {
+        Parcel data, reply;
+        status_t err;
+        MediaAnalyticsItem::SessionID_t sessionid =
+                        MediaAnalyticsItem::SessionIDInvalid;
+
+        data.writeInterfaceToken(IMediaAnalyticsService::getInterfaceDescriptor());
+        err = remote()->transact(GENERATE_UNIQUE_SESSIONID, data, &reply);
+        if (err != NO_ERROR) {
+            ALOGW("bad response from service");
+            return MediaAnalyticsItem::SessionIDInvalid;
+        }
+        sessionid = reply.readInt64();
+        if (DEBUGGING_RETURNS) {
+            ALOGD("the caller gets a sessionid of %" PRId64 " back", sessionid);
+        }
+        return sessionid;
+    }
+
+    virtual MediaAnalyticsItem::SessionID_t submit(MediaAnalyticsItem *item, bool forcenew)
+    {
+        // have this record submit itself
+        // this will be a binder call with appropriate timing
+        // return value is the uuid that the system generated for it.
+        // the return value 0 and -1 are reserved.
+        // -1 to indicate that there was a problem recording...
+
+        Parcel data, reply;
+        status_t err;
+
+        if (item == NULL) {
+                return MediaAnalyticsItem::SessionIDInvalid;
+        }
+
+        data.writeInterfaceToken(IMediaAnalyticsService::getInterfaceDescriptor());
+        if(DEBUGGING_FLOW) {
+            ALOGD("client offers record: %s", item->toString().c_str());
+        }
+        data.writeBool(forcenew);
+        item->writeToParcel(&data);
+
+        err = remote()->transact(SUBMIT_ITEM, data, &reply);
+        if (err != NO_ERROR) {
+            return MediaAnalyticsItem::SessionIDInvalid;
+        }
+
+        // get an answer out of 'reply'
+        int64_t sessionid = reply.readInt64();
+        if (DEBUGGING_RETURNS) {
+            ALOGD("the caller gets sessionid=%" PRId64 "", sessionid);
+        }
+        return sessionid;
+    }
+
+};
+
+IMPLEMENT_META_INTERFACE(MediaAnalyticsService, "android.media.IMediaAnalyticsService");
+
+// ----------------------------------------------------------------------
+
+status_t BnMediaAnalyticsService::onTransact(
+    uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
+{
+
+
+    // get calling pid/tid
+    IPCThreadState *ipc = IPCThreadState::self();
+    int clientPid = ipc->getCallingPid();
+    // permission checking
+
+    if(DEBUGGING_FLOW) {
+        ALOGD("running in service, code %d, pid %d; called from pid %d",
+            code, getpid(), clientPid);
+    }
+
+    switch (code) {
+
+        case GENERATE_UNIQUE_SESSIONID: {
+            CHECK_INTERFACE(IMediaAnalyticsService, data, reply);
+
+            MediaAnalyticsItem::SessionID_t sessionid = generateUniqueSessionID();
+            reply->writeInt64(sessionid);
+
+            return NO_ERROR;
+        } break;
+
+        case SUBMIT_ITEM: {
+            CHECK_INTERFACE(IMediaAnalyticsService, data, reply);
+
+            bool forcenew;
+            MediaAnalyticsItem *item = new MediaAnalyticsItem;
+
+            data.readBool(&forcenew);
+            item->readFromParcel(data);
+
+            item->setPid(clientPid);
+
+            // submit() takes over ownership of 'item'
+            MediaAnalyticsItem::SessionID_t sessionid = submit(item, forcenew);
+            reply->writeInt64(sessionid);
+
+            return NO_ERROR;
+        } break;
+
+        default:
+            return BBinder::onTransact(code, data, reply, flags);
+    }
+}
+
+// ----------------------------------------------------------------------------
+
+} // namespace android
diff --git a/media/libmedia/IMediaCodecService.cpp b/media/libmedia/IMediaCodecService.cpp
index dcf2b27..2d62419 100644
--- a/media/libmedia/IMediaCodecService.cpp
+++ b/media/libmedia/IMediaCodecService.cpp
@@ -33,7 +33,7 @@
 class BpMediaCodecService : public BpInterface<IMediaCodecService>
 {
 public:
-    BpMediaCodecService(const sp<IBinder>& impl)
+    explicit BpMediaCodecService(const sp<IBinder>& impl)
         : BpInterface<IMediaCodecService>(impl)
     {
     }
diff --git a/media/libmedia/IMediaDrmService.cpp b/media/libmedia/IMediaDrmService.cpp
deleted file mode 100644
index 9b6ecfd..0000000
--- a/media/libmedia/IMediaDrmService.cpp
+++ /dev/null
@@ -1,88 +0,0 @@
-/*
-**
-** Copyright 2015, The Android Open Source Project
-**
-** Licensed under the Apache License, Version 2.0 (the "License");
-** you may not use this file except in compliance with the License.
-** You may obtain a copy of the License at
-**
-**     http://www.apache.org/licenses/LICENSE-2.0
-**
-** Unless required by applicable law or agreed to in writing, software
-** distributed under the License is distributed on an "AS IS" BASIS,
-** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-** See the License for the specific language governing permissions and
-** limitations under the License.
-*/
-
-#include <stdint.h>
-#include <sys/types.h>
-
-#include <binder/Parcel.h>
-#include <binder/IMemory.h>
-#include <media/ICrypto.h>
-#include <media/IDrm.h>
-#include <media/IMediaDrmService.h>
-
-#include <utils/Errors.h>  // for status_t
-#include <utils/String8.h>
-
-namespace android {
-
-enum {
-    MAKE_CRYPTO = IBinder::FIRST_CALL_TRANSACTION,
-    MAKE_DRM,
-};
-
-class BpMediaDrmService: public BpInterface<IMediaDrmService>
-{
-public:
-    BpMediaDrmService(const sp<IBinder>& impl)
-        : BpInterface<IMediaDrmService>(impl)
-    {
-    }
-
-    virtual sp<ICrypto> makeCrypto() {
-        Parcel data, reply;
-        data.writeInterfaceToken(IMediaDrmService::getInterfaceDescriptor());
-        remote()->transact(MAKE_CRYPTO, data, &reply);
-        return interface_cast<ICrypto>(reply.readStrongBinder());
-    }
-
-    virtual sp<IDrm> makeDrm() {
-        Parcel data, reply;
-        data.writeInterfaceToken(IMediaDrmService::getInterfaceDescriptor());
-        remote()->transact(MAKE_DRM, data, &reply);
-        return interface_cast<IDrm>(reply.readStrongBinder());
-    }
-
-};
-
-IMPLEMENT_META_INTERFACE(MediaDrmService, "android.media.IMediaDrmService");
-
-// ----------------------------------------------------------------------
-
-status_t BnMediaDrmService::onTransact(
-    uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
-{
-    switch (code) {
-        case MAKE_CRYPTO: {
-            CHECK_INTERFACE(IMediaDrmService, data, reply);
-            sp<ICrypto> crypto = makeCrypto();
-            reply->writeStrongBinder(IInterface::asBinder(crypto));
-            return NO_ERROR;
-        } break;
-        case MAKE_DRM: {
-            CHECK_INTERFACE(IMediaDrmService, data, reply);
-            sp<IDrm> drm = makeDrm();
-            reply->writeStrongBinder(IInterface::asBinder(drm));
-            return NO_ERROR;
-        } break;
-        default:
-            return BBinder::onTransact(code, data, reply, flags);
-    }
-}
-
-// ----------------------------------------------------------------------------
-
-} // namespace android
diff --git a/media/libmedia/IMediaExtractor.cpp b/media/libmedia/IMediaExtractor.cpp
index 4be1118..f08fabb 100644
--- a/media/libmedia/IMediaExtractor.cpp
+++ b/media/libmedia/IMediaExtractor.cpp
@@ -21,6 +21,7 @@
 #include <stdint.h>
 #include <sys/types.h>
 
+#include <android/media/ICas.h>
 #include <binder/IPCThreadState.h>
 #include <binder/Parcel.h>
 #include <media/IMediaExtractor.h>
@@ -34,16 +35,16 @@
     GETTRACKMETADATA,
     GETMETADATA,
     FLAGS,
-    SETDRMFLAG,
-    GETDRMFLAG,
     GETDRMTRACKINFO,
+    SETMEDIACAS,
     SETUID,
-    NAME
+    NAME,
+    GETMETRICS
 };
 
 class BpMediaExtractor : public BpInterface<IMediaExtractor> {
 public:
-    BpMediaExtractor(const sp<IBinder>& impl)
+    explicit BpMediaExtractor(const sp<IBinder>& impl)
         : BpInterface<IMediaExtractor>(impl)
     {
     }
@@ -96,22 +97,40 @@
         return NULL;
     }
 
+    virtual status_t getMetrics(Parcel * reply) {
+        Parcel data;
+        data.writeInterfaceToken(BpMediaExtractor::getInterfaceDescriptor());
+        status_t ret = remote()->transact(GETMETRICS, data, reply);
+        if (ret == NO_ERROR) {
+            return OK;
+        }
+        return UNKNOWN_ERROR;
+    }
+
     virtual uint32_t flags() const {
         ALOGV("flags NOT IMPLEMENTED");
         return 0;
     }
 
-    virtual void setDrmFlag(bool flag __unused) {
-        ALOGV("setDrmFlag NOT IMPLEMENTED");
-    }
-    virtual bool getDrmFlag() {
-        ALOGV("getDrmFlag NOT IMPLEMENTED");
-       return false;
-    }
     virtual char* getDrmTrackInfo(size_t trackID __unused, int *len __unused) {
         ALOGV("getDrmTrackInfo NOT IMPLEMENTED");
         return NULL;
     }
+
+    virtual status_t setMediaCas(const sp<ICas> & cas) {
+        ALOGV("setMediaCas");
+
+        Parcel data, reply;
+        data.writeInterfaceToken(BpMediaExtractor::getInterfaceDescriptor());
+        data.writeStrongBinder(IInterface::asBinder(cas));
+
+        status_t err = remote()->transact(SETMEDIACAS, data, &reply);
+        if (err != NO_ERROR) {
+            return err;
+        }
+        return reply.readInt32();
+    }
+
     virtual void setUID(uid_t uid __unused) {
         ALOGV("setUID NOT IMPLEMENTED");
     }
@@ -178,6 +197,26 @@
             }
             return UNKNOWN_ERROR;
         }
+        case GETMETRICS: {
+            CHECK_INTERFACE(IMediaExtractor, data, reply);
+            status_t ret = getMetrics(reply);
+            return ret;
+        }
+        case SETMEDIACAS: {
+            ALOGV("setMediaCas");
+            CHECK_INTERFACE(IMediaExtractor, data, reply);
+
+            sp<IBinder> casBinder;
+            status_t err = data.readNullableStrongBinder(&casBinder);
+            if (err != NO_ERROR) {
+                ALOGE("Error reading cas from parcel");
+                return err;
+            }
+            sp<ICas> cas = interface_cast<ICas>(casBinder);
+
+            reply->writeInt32(setMediaCas(cas));
+            return OK;
+        }
         default:
             return BBinder::onTransact(code, data, reply, flags);
     }
diff --git a/media/libmedia/IMediaExtractorService.cpp b/media/libmedia/IMediaExtractorService.cpp
index d170c22..8b00d85 100644
--- a/media/libmedia/IMediaExtractorService.cpp
+++ b/media/libmedia/IMediaExtractorService.cpp
@@ -33,7 +33,7 @@
 class BpMediaExtractorService : public BpInterface<IMediaExtractorService>
 {
 public:
-    BpMediaExtractorService(const sp<IBinder>& impl)
+    explicit BpMediaExtractorService(const sp<IBinder>& impl)
         : BpInterface<IMediaExtractorService>(impl)
     {
     }
diff --git a/media/libmedia/IMediaHTTPConnection.cpp b/media/libmedia/IMediaHTTPConnection.cpp
index e4b717b..1bb8d67 100644
--- a/media/libmedia/IMediaHTTPConnection.cpp
+++ b/media/libmedia/IMediaHTTPConnection.cpp
@@ -124,6 +124,14 @@
             ALOGE("got %zu, but memory has %zu", len, mMemory->size());
             return ERROR_OUT_OF_RANGE;
         }
+        if(buffer == NULL) {
+           ALOGE("readAt got a NULL buffer");
+           return UNKNOWN_ERROR;
+        }
+        if (mMemory->pointer() == NULL) {
+           ALOGE("readAt got a NULL mMemory->pointer()");
+           return UNKNOWN_ERROR;
+        }
 
         memcpy(buffer, mMemory->pointer(), len);
 
diff --git a/media/libmedia/IMediaPlayer.cpp b/media/libmedia/IMediaPlayer.cpp
index f8345e4..3996227 100644
--- a/media/libmedia/IMediaPlayer.cpp
+++ b/media/libmedia/IMediaPlayer.cpp
@@ -23,6 +23,7 @@
 
 #include <media/AudioResamplerPublic.h>
 #include <media/AVSyncSettings.h>
+#include <media/BufferingSettings.h>
 
 #include <media/IDataSource.h>
 #include <media/IMediaHTTPService.h>
@@ -40,6 +41,8 @@
     SET_DATA_SOURCE_FD,
     SET_DATA_SOURCE_STREAM,
     SET_DATA_SOURCE_CALLBACK,
+    SET_BUFFERING_SETTINGS,
+    GET_DEFAULT_BUFFERING_SETTINGS,
     PREPARE_ASYNC,
     START,
     STOP,
@@ -67,8 +70,25 @@
     SET_RETRANSMIT_ENDPOINT,
     GET_RETRANSMIT_ENDPOINT,
     SET_NEXT_PLAYER,
+    APPLY_VOLUME_SHAPER,
+    GET_VOLUME_SHAPER_STATE,
+    // Modular DRM
+    PREPARE_DRM,
+    RELEASE_DRM,
 };
 
+// ModDrm helpers
+static void readVector(const Parcel& reply, Vector<uint8_t>& vector) {
+    uint32_t size = reply.readUint32();
+    vector.insertAt((size_t)0, size);
+    reply.read(vector.editArray(), size);
+}
+
+static void writeVector(Parcel& data, Vector<uint8_t> const& vector) {
+    data.writeUint32(vector.size());
+    data.write(vector.array(), vector.size());
+}
+
 class BpMediaPlayer: public BpInterface<IMediaPlayer>
 {
 public:
@@ -148,6 +168,30 @@
         return reply.readInt32();
     }
 
+    status_t setBufferingSettings(const BufferingSettings& buffering)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IMediaPlayer::getInterfaceDescriptor());
+        buffering.writeToParcel(&data);
+        remote()->transact(SET_BUFFERING_SETTINGS, data, &reply);
+        return reply.readInt32();
+    }
+
+    status_t getDefaultBufferingSettings(BufferingSettings* buffering /* nonnull */)
+    {
+        if (buffering == nullptr) {
+            return BAD_VALUE;
+        }
+        Parcel data, reply;
+        data.writeInterfaceToken(IMediaPlayer::getInterfaceDescriptor());
+        remote()->transact(GET_DEFAULT_BUFFERING_SETTINGS, data, &reply);
+        status_t err = reply.readInt32();
+        if (err == OK) {
+            err = buffering->readFromParcel(&reply);
+        }
+        return err;
+    }
+
     status_t prepareAsync()
     {
         Parcel data, reply;
@@ -246,11 +290,12 @@
         return reply.readInt32();
     }
 
-    status_t seekTo(int msec)
+    status_t seekTo(int msec, MediaPlayerSeekMode mode)
     {
         Parcel data, reply;
         data.writeInterfaceToken(IMediaPlayer::getInterfaceDescriptor());
         data.writeInt32(msec);
+        data.writeInt32(mode);
         remote()->transact(SEEK_TO, data, &reply);
         return reply.readInt32();
     }
@@ -419,6 +464,89 @@
 
         return err;
     }
+
+    virtual VolumeShaper::Status applyVolumeShaper(
+            const sp<VolumeShaper::Configuration>& configuration,
+            const sp<VolumeShaper::Operation>& operation) {
+        Parcel data, reply;
+        data.writeInterfaceToken(IMediaPlayer::getInterfaceDescriptor());
+
+        status_t tmp;
+        status_t status = configuration.get() == nullptr
+                ? data.writeInt32(0)
+                : (tmp = data.writeInt32(1)) != NO_ERROR
+                    ? tmp : configuration->writeToParcel(&data);
+        if (status != NO_ERROR) {
+            return VolumeShaper::Status(status);
+        }
+
+        status = operation.get() == nullptr
+                ? status = data.writeInt32(0)
+                : (tmp = data.writeInt32(1)) != NO_ERROR
+                    ? tmp : operation->writeToParcel(&data);
+        if (status != NO_ERROR) {
+            return VolumeShaper::Status(status);
+        }
+
+        int32_t remoteVolumeShaperStatus;
+        status = remote()->transact(APPLY_VOLUME_SHAPER, data, &reply);
+        if (status == NO_ERROR) {
+            status = reply.readInt32(&remoteVolumeShaperStatus);
+        }
+        if (status != NO_ERROR) {
+            return VolumeShaper::Status(status);
+        }
+        return VolumeShaper::Status(remoteVolumeShaperStatus);
+    }
+
+    virtual sp<VolumeShaper::State> getVolumeShaperState(int id) {
+        Parcel data, reply;
+        data.writeInterfaceToken(IMediaPlayer::getInterfaceDescriptor());
+
+        data.writeInt32(id);
+        status_t status = remote()->transact(GET_VOLUME_SHAPER_STATE, data, &reply);
+        if (status != NO_ERROR) {
+            return nullptr;
+        }
+        sp<VolumeShaper::State> state = new VolumeShaper::State();
+        status = state->readFromParcel(reply);
+        if (status != NO_ERROR) {
+            return nullptr;
+        }
+        return state;
+    }
+
+    // Modular DRM
+    status_t prepareDrm(const uint8_t uuid[16], const Vector<uint8_t>& drmSessionId)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IMediaPlayer::getInterfaceDescriptor());
+
+        data.write(uuid, 16);
+        writeVector(data, drmSessionId);
+
+        status_t status = remote()->transact(PREPARE_DRM, data, &reply);
+        if (status != OK) {
+            ALOGE("prepareDrm: binder call failed: %d", status);
+            return status;
+        }
+
+        return reply.readInt32();
+    }
+
+    status_t releaseDrm()
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IMediaPlayer::getInterfaceDescriptor());
+
+        status_t status = remote()->transact(RELEASE_DRM, data, &reply);
+        if (status != OK) {
+            ALOGE("releaseDrm: binder call failed: %d", status);
+            return status;
+        }
+
+        return reply.readInt32();
+    }
 };
 
 IMPLEMENT_META_INTERFACE(MediaPlayer, "android.media.IMediaPlayer");
@@ -496,6 +624,23 @@
             reply->writeInt32(setVideoSurfaceTexture(bufferProducer));
             return NO_ERROR;
         } break;
+        case SET_BUFFERING_SETTINGS: {
+            CHECK_INTERFACE(IMediaPlayer, data, reply);
+            BufferingSettings buffering;
+            buffering.readFromParcel(&data);
+            reply->writeInt32(setBufferingSettings(buffering));
+            return NO_ERROR;
+        } break;
+        case GET_DEFAULT_BUFFERING_SETTINGS: {
+            CHECK_INTERFACE(IMediaPlayer, data, reply);
+            BufferingSettings buffering;
+            status_t err = getDefaultBufferingSettings(&buffering);
+            reply->writeInt32(err);
+            if (err == OK) {
+                buffering.writeToParcel(reply);
+            }
+            return NO_ERROR;
+        } break;
         case PREPARE_ASYNC: {
             CHECK_INTERFACE(IMediaPlayer, data, reply);
             reply->writeInt32(prepareAsync());
@@ -573,7 +718,9 @@
         } break;
         case SEEK_TO: {
             CHECK_INTERFACE(IMediaPlayer, data, reply);
-            reply->writeInt32(seekTo(data.readInt32()));
+            int msec = data.readInt32();
+            MediaPlayerSeekMode mode = (MediaPlayerSeekMode)data.readInt32();
+            reply->writeInt32(seekTo(msec, mode));
             return NO_ERROR;
         } break;
         case GET_CURRENT_POSITION: {
@@ -694,6 +841,64 @@
 
             return NO_ERROR;
         } break;
+
+        case APPLY_VOLUME_SHAPER: {
+            CHECK_INTERFACE(IMediaPlayer, data, reply);
+            sp<VolumeShaper::Configuration> configuration;
+            sp<VolumeShaper::Operation> operation;
+
+            int32_t present;
+            status_t status = data.readInt32(&present);
+            if (status == NO_ERROR && present != 0) {
+                configuration = new VolumeShaper::Configuration();
+                status = configuration->readFromParcel(data);
+            }
+            if (status == NO_ERROR) {
+                status = data.readInt32(&present);
+            }
+            if (status == NO_ERROR && present != 0) {
+                operation = new VolumeShaper::Operation();
+                status = operation->readFromParcel(data);
+            }
+            if (status == NO_ERROR) {
+                status = (status_t)applyVolumeShaper(configuration, operation);
+            }
+            reply->writeInt32(status);
+            return NO_ERROR;
+        } break;
+        case GET_VOLUME_SHAPER_STATE: {
+            CHECK_INTERFACE(IMediaPlayer, data, reply);
+            int id;
+            status_t status = data.readInt32(&id);
+            if (status == NO_ERROR) {
+                sp<VolumeShaper::State> state = getVolumeShaperState(id);
+                if (state.get() != nullptr) {
+                     status = state->writeToParcel(reply);
+                }
+            }
+            return NO_ERROR;
+        } break;
+
+        // Modular DRM
+        case PREPARE_DRM: {
+            CHECK_INTERFACE(IMediaPlayer, data, reply);
+
+            uint8_t uuid[16];
+            data.read(uuid, sizeof(uuid));
+            Vector<uint8_t> drmSessionId;
+            readVector(data, drmSessionId);
+
+            uint32_t result = prepareDrm(uuid, drmSessionId);
+            reply->writeInt32(result);
+            return OK;
+        }
+        case RELEASE_DRM: {
+            CHECK_INTERFACE(IMediaPlayer, data, reply);
+
+            uint32_t result = releaseDrm();
+            reply->writeInt32(result);
+            return OK;
+        }
         default:
             return BBinder::onTransact(code, data, reply, flags);
     }
diff --git a/media/libmedia/IMediaRecorder.cpp b/media/libmedia/IMediaRecorder.cpp
index a6860e2..5282352 100644
--- a/media/libmedia/IMediaRecorder.cpp
+++ b/media/libmedia/IMediaRecorder.cpp
@@ -29,6 +29,7 @@
 #include <media/IMediaRecorder.h>
 #include <gui/Surface.h>
 #include <gui/IGraphicBufferProducer.h>
+#include <media/stagefright/PersistentSurface.h>
 
 namespace android {
 
@@ -49,6 +50,7 @@
     SET_VIDEO_ENCODER,
     SET_AUDIO_ENCODER,
     SET_OUTPUT_FILE_FD,
+    SET_NEXT_OUTPUT_FILE_FD,
     SET_VIDEO_SIZE,
     SET_VIDEO_FRAMERATE,
     SET_PARAMETERS,
@@ -57,7 +59,9 @@
     SET_LISTENER,
     SET_CLIENT_NAME,
     PAUSE,
-    RESUME
+    RESUME,
+    GET_METRICS,
+
 };
 
 class BpMediaRecorder: public BpInterface<IMediaRecorder>
@@ -79,12 +83,12 @@
         return reply.readInt32();
     }
 
-    status_t setInputSurface(const sp<IGraphicBufferConsumer>& surface)
+    status_t setInputSurface(const sp<PersistentSurface>& surface)
     {
         ALOGV("setInputSurface(%p)", surface.get());
         Parcel data, reply;
         data.writeInterfaceToken(IMediaRecorder::getInterfaceDescriptor());
-        data.writeStrongBinder(IInterface::asBinder(surface));
+        surface->writeToParcel(&data);
         remote()->transact(SET_INPUT_SURFACE, data, &reply);
         return reply.readInt32();
     }
@@ -171,17 +175,24 @@
         return reply.readInt32();
     }
 
-    status_t setOutputFile(int fd, int64_t offset, int64_t length) {
-        ALOGV("setOutputFile(%d, %" PRId64 ", %" PRId64 ")", fd, offset, length);
+    status_t setOutputFile(int fd) {
+        ALOGV("setOutputFile(%d)", fd);
         Parcel data, reply;
         data.writeInterfaceToken(IMediaRecorder::getInterfaceDescriptor());
         data.writeFileDescriptor(fd);
-        data.writeInt64(offset);
-        data.writeInt64(length);
         remote()->transact(SET_OUTPUT_FILE_FD, data, &reply);
         return reply.readInt32();
     }
 
+    status_t setNextOutputFile(int fd) {
+        ALOGV("setNextOutputFile(%d)", fd);
+        Parcel data, reply;
+        data.writeInterfaceToken(IMediaRecorder::getInterfaceDescriptor());
+        data.writeFileDescriptor(fd);
+        remote()->transact(SET_NEXT_OUTPUT_FILE_FD, data, &reply);
+        return reply.readInt32();
+    }
+
     status_t setVideoSize(int width, int height)
     {
         ALOGV("setVideoSize(%dx%d)", width, height);
@@ -252,6 +263,18 @@
         return reply.readInt32();
     }
 
+    status_t getMetrics(Parcel* reply)
+    {
+        ALOGV("getMetrics");
+        Parcel data;
+        data.writeInterfaceToken(IMediaRecorder::getInterfaceDescriptor());
+        status_t ret = remote()->transact(GET_METRICS, data, reply);
+        if (ret == NO_ERROR) {
+            return OK;
+        }
+        return UNKNOWN_ERROR;
+    }
+
     status_t start()
     {
         ALOGV("start");
@@ -388,6 +411,11 @@
             reply->writeInt32(ret);
             return NO_ERROR;
         } break;
+        case GET_METRICS: {
+            ALOGV("GET_METRICS");
+            status_t ret = getMetrics(reply);
+            return ret;
+        } break;
         case SET_VIDEO_SOURCE: {
             ALOGV("SET_VIDEO_SOURCE");
             CHECK_INTERFACE(IMediaRecorder, data, reply);
@@ -428,9 +456,15 @@
             ALOGV("SET_OUTPUT_FILE_FD");
             CHECK_INTERFACE(IMediaRecorder, data, reply);
             int fd = dup(data.readFileDescriptor());
-            int64_t offset = data.readInt64();
-            int64_t length = data.readInt64();
-            reply->writeInt32(setOutputFile(fd, offset, length));
+            reply->writeInt32(setOutputFile(fd));
+            ::close(fd);
+            return NO_ERROR;
+        } break;
+        case SET_NEXT_OUTPUT_FILE_FD: {
+            ALOGV("SET_NEXT_OUTPUT_FILE_FD");
+            CHECK_INTERFACE(IMediaRecorder, data, reply);
+            int fd = dup(data.readFileDescriptor());
+            reply->writeInt32(setNextOutputFile(fd));
             ::close(fd);
             return NO_ERROR;
         } break;
@@ -490,8 +524,8 @@
         case SET_INPUT_SURFACE: {
             ALOGV("SET_INPUT_SURFACE");
             CHECK_INTERFACE(IMediaRecorder, data, reply);
-            sp<IGraphicBufferConsumer> surface = interface_cast<IGraphicBufferConsumer>(
-                    data.readStrongBinder());
+            sp<PersistentSurface> surface = new PersistentSurface();
+            surface->readFromParcel(&data);
             reply->writeInt32(setInputSurface(surface));
             return NO_ERROR;
         } break;
diff --git a/media/libmedia/IMediaSource.cpp b/media/libmedia/IMediaSource.cpp
index 595bad9..fdbc869 100644
--- a/media/libmedia/IMediaSource.cpp
+++ b/media/libmedia/IMediaSource.cpp
@@ -67,7 +67,7 @@
 
 class BpMediaSource : public BpInterface<IMediaSource> {
 public:
-    BpMediaSource(const sp<IBinder>& impl)
+    explicit BpMediaSource(const sp<IBinder>& impl)
         : BpInterface<IMediaSource>(impl), mBuffersSinceStop(0)
     {
     }
diff --git a/media/libmedia/IOMX.cpp b/media/libmedia/IOMX.cpp
index beca464..223ca6b 100644
--- a/media/libmedia/IOMX.cpp
+++ b/media/libmedia/IOMX.cpp
@@ -25,43 +25,41 @@
 #include <media/IOMX.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/openmax/OMX_IndexExt.h>
+#include <media/OMXBuffer.h>
 #include <utils/NativeHandle.h>
+#include <gui/IGraphicBufferProducer.h>
+
+#include <omx/1.0/WOmxNode.h>
+#include <android/IGraphicBufferSource.h>
+#include <android/IOMXBufferSource.h>
 
 namespace android {
 
 enum {
     CONNECT = IBinder::FIRST_CALL_TRANSACTION,
-    LIVES_LOCALLY,
     LIST_NODES,
     ALLOCATE_NODE,
+    CREATE_INPUT_SURFACE,
     FREE_NODE,
     SEND_COMMAND,
     GET_PARAMETER,
     SET_PARAMETER,
     GET_CONFIG,
     SET_CONFIG,
-    GET_STATE,
-    ENABLE_NATIVE_BUFFERS,
-    USE_BUFFER,
-    USE_GRAPHIC_BUFFER,
-    CREATE_INPUT_SURFACE,
-    CREATE_PERSISTENT_INPUT_SURFACE,
+    SET_PORT_MODE,
     SET_INPUT_SURFACE,
-    SIGNAL_END_OF_INPUT_STREAM,
-    STORE_META_DATA_IN_BUFFERS,
     PREPARE_FOR_ADAPTIVE_PLAYBACK,
     ALLOC_SECURE_BUFFER,
-    ALLOC_BUFFER_WITH_BACKUP,
+    USE_BUFFER,
     FREE_BUFFER,
     FILL_BUFFER,
     EMPTY_BUFFER,
     GET_EXTENSION_INDEX,
     OBSERVER_ON_MSG,
     GET_GRAPHIC_BUFFER_USAGE,
-    SET_INTERNAL_OPTION,
-    UPDATE_GRAPHIC_BUFFER_IN_META,
     CONFIGURE_VIDEO_TUNNEL_MODE,
-    UPDATE_NATIVE_HANDLE_IN_META,
+    DISPATCH_MESSAGE,
+    SET_QUIRKS,
 };
 
 class BpOMX : public BpInterface<IOMX> {
@@ -70,16 +68,6 @@
         : BpInterface<IOMX>(impl) {
     }
 
-    virtual bool livesLocally(node_id node, pid_t pid) {
-        Parcel data, reply;
-        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
-        data.writeInt32((int32_t)node);
-        data.writeInt32(pid);
-        remote()->transact(LIVES_LOCALLY, data, &reply);
-
-        return reply.readInt32() != 0;
-    }
-
     virtual status_t listNodes(List<ComponentInfo> *list) {
         list->clear();
 
@@ -104,8 +92,7 @@
 
     virtual status_t allocateNode(
             const char *name, const sp<IOMXObserver> &observer,
-            sp<IBinder> *nodeBinder,
-            node_id *node) {
+            sp<IOMXNode> *omxNode) {
         Parcel data, reply;
         data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
         data.writeCString(name);
@@ -114,31 +101,58 @@
 
         status_t err = reply.readInt32();
         if (err == OK) {
-            *node = (node_id)reply.readInt32();
-            if (nodeBinder != NULL) {
-                *nodeBinder = remote();
-            }
+            *omxNode = IOMXNode::asInterface(reply.readStrongBinder());
         } else {
-            *node = 0;
+            omxNode->clear();
         }
 
         return err;
     }
 
-    virtual status_t freeNode(node_id node) {
+    virtual status_t createInputSurface(
+            sp<IGraphicBufferProducer> *bufferProducer,
+            sp<IGraphicBufferSource> *bufferSource) {
         Parcel data, reply;
+        status_t err;
         data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
-        data.writeInt32((int32_t)node);
+        err = remote()->transact(CREATE_INPUT_SURFACE, data, &reply);
+        if (err != OK) {
+            ALOGW("binder transaction failed: %d", err);
+            return err;
+        }
+
+        err = reply.readInt32();
+        if (err != OK) {
+            return err;
+        }
+
+        *bufferProducer = IGraphicBufferProducer::asInterface(
+                reply.readStrongBinder());
+        *bufferSource = IGraphicBufferSource::asInterface(
+                reply.readStrongBinder());
+
+        return err;
+    }
+};
+
+class BpOMXNode : public BpInterface<IOMXNode> {
+public:
+    explicit BpOMXNode(const sp<IBinder> &impl)
+        : BpInterface<IOMXNode>(impl) {
+    }
+
+    virtual status_t freeNode() {
+        Parcel data, reply;
+        data.writeInterfaceToken(IOMXNode::getInterfaceDescriptor());
         remote()->transact(FREE_NODE, data, &reply);
 
         return reply.readInt32();
     }
 
     virtual status_t sendCommand(
-            node_id node, OMX_COMMANDTYPE cmd, OMX_S32 param) {
+            OMX_COMMANDTYPE cmd, OMX_S32 param) {
         Parcel data, reply;
-        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
-        data.writeInt32((int32_t)node);
+        data.writeInterfaceToken(IOMXNode::getInterfaceDescriptor());
         data.writeInt32(cmd);
         data.writeInt32(param);
         remote()->transact(SEND_COMMAND, data, &reply);
@@ -147,11 +161,10 @@
     }
 
     virtual status_t getParameter(
-            node_id node, OMX_INDEXTYPE index,
+            OMX_INDEXTYPE index,
             void *params, size_t size) {
         Parcel data, reply;
-        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
-        data.writeInt32((int32_t)node);
+        data.writeInterfaceToken(IOMXNode::getInterfaceDescriptor());
         data.writeInt32(index);
         data.writeInt64(size);
         data.write(params, size);
@@ -168,11 +181,10 @@
     }
 
     virtual status_t setParameter(
-            node_id node, OMX_INDEXTYPE index,
+            OMX_INDEXTYPE index,
             const void *params, size_t size) {
         Parcel data, reply;
-        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
-        data.writeInt32((int32_t)node);
+        data.writeInterfaceToken(IOMXNode::getInterfaceDescriptor());
         data.writeInt32(index);
         data.writeInt64(size);
         data.write(params, size);
@@ -182,11 +194,10 @@
     }
 
     virtual status_t getConfig(
-            node_id node, OMX_INDEXTYPE index,
+            OMX_INDEXTYPE index,
             void *params, size_t size) {
         Parcel data, reply;
-        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
-        data.writeInt32((int32_t)node);
+        data.writeInterfaceToken(IOMXNode::getInterfaceDescriptor());
         data.writeInt32(index);
         data.writeInt64(size);
         data.write(params, size);
@@ -203,11 +214,10 @@
     }
 
     virtual status_t setConfig(
-            node_id node, OMX_INDEXTYPE index,
+            OMX_INDEXTYPE index,
             const void *params, size_t size) {
         Parcel data, reply;
-        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
-        data.writeInt32((int32_t)node);
+        data.writeInterfaceToken(IOMXNode::getInterfaceDescriptor());
         data.writeInt32(index);
         data.writeInt64(size);
         data.write(params, size);
@@ -216,36 +226,21 @@
         return reply.readInt32();
     }
 
-    virtual status_t getState(
-            node_id node, OMX_STATETYPE* state) {
+    virtual status_t setPortMode(
+            OMX_U32 port_index, IOMX::PortMode mode) {
         Parcel data, reply;
-        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
-        data.writeInt32((int32_t)node);
-        remote()->transact(GET_STATE, data, &reply);
+        data.writeInterfaceToken(IOMXNode::getInterfaceDescriptor());
+        data.writeInt32(port_index);
+        data.writeInt32(mode);
+        remote()->transact(SET_PORT_MODE, data, &reply);
 
-        *state = static_cast<OMX_STATETYPE>(reply.readInt32());
         return reply.readInt32();
     }
 
-    virtual status_t enableNativeBuffers(
-            node_id node, OMX_U32 port_index, OMX_BOOL graphic, OMX_BOOL enable) {
-        Parcel data, reply;
-        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
-        data.writeInt32((int32_t)node);
-        data.writeInt32(port_index);
-        data.writeInt32((uint32_t)graphic);
-        data.writeInt32((uint32_t)enable);
-        remote()->transact(ENABLE_NATIVE_BUFFERS, data, &reply);
-
-        status_t err = reply.readInt32();
-        return err;
-    }
-
     virtual status_t getGraphicBufferUsage(
-            node_id node, OMX_U32 port_index, OMX_U32* usage) {
+            OMX_U32 port_index, OMX_U32* usage) {
         Parcel data, reply;
-        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
-        data.writeInt32((int32_t)node);
+        data.writeInterfaceToken(IOMXNode::getInterfaceDescriptor());
         data.writeInt32(port_index);
         remote()->transact(GET_GRAPHIC_BUFFER_USAGE, data, &reply);
 
@@ -255,17 +250,19 @@
     }
 
     virtual status_t useBuffer(
-            node_id node, OMX_U32 port_index, const sp<IMemory> &params,
-            buffer_id *buffer, OMX_U32 allottedSize) {
+            OMX_U32 port_index, const OMXBuffer &omxBuf, buffer_id *buffer) {
         Parcel data, reply;
-        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
-        data.writeInt32((int32_t)node);
+        data.writeInterfaceToken(IOMXNode::getInterfaceDescriptor());
         data.writeInt32(port_index);
-        data.writeStrongBinder(IInterface::asBinder(params));
-        data.writeInt32(allottedSize);
+
+        status_t err = omxBuf.writeToParcel(&data);
+        if (err != OK) {
+            return err;
+        }
+
         remote()->transact(USE_BUFFER, data, &reply);
 
-        status_t err = reply.readInt32();
+        err = reply.readInt32();
         if (err != OK) {
             *buffer = 0;
 
@@ -277,185 +274,30 @@
         return err;
     }
 
-
-    virtual status_t useGraphicBuffer(
-            node_id node, OMX_U32 port_index,
-            const sp<GraphicBuffer> &graphicBuffer, buffer_id *buffer) {
-        Parcel data, reply;
-        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
-        data.writeInt32((int32_t)node);
-        data.writeInt32(port_index);
-        data.write(*graphicBuffer);
-        remote()->transact(USE_GRAPHIC_BUFFER, data, &reply);
-
-        status_t err = reply.readInt32();
-        if (err != OK) {
-            *buffer = 0;
-
-            return err;
-        }
-
-        *buffer = (buffer_id)reply.readInt32();
-
-        return err;
-    }
-
-    virtual status_t updateGraphicBufferInMeta(
-            node_id node, OMX_U32 port_index,
-            const sp<GraphicBuffer> &graphicBuffer, buffer_id buffer) {
-        Parcel data, reply;
-        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
-        data.writeInt32((int32_t)node);
-        data.writeInt32(port_index);
-        data.write(*graphicBuffer);
-        data.writeInt32((int32_t)buffer);
-        remote()->transact(UPDATE_GRAPHIC_BUFFER_IN_META, data, &reply);
-
-        status_t err = reply.readInt32();
-        return err;
-    }
-
-    virtual status_t updateNativeHandleInMeta(
-            node_id node, OMX_U32 port_index,
-            const sp<NativeHandle> &nativeHandle, buffer_id buffer) {
-        Parcel data, reply;
-        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
-        data.writeInt32((int32_t)node);
-        data.writeInt32(port_index);
-        data.writeInt32(nativeHandle != NULL);
-        if (nativeHandle != NULL) {
-            data.writeNativeHandle(nativeHandle->handle());
-        }
-        data.writeInt32((int32_t)buffer);
-        remote()->transact(UPDATE_NATIVE_HANDLE_IN_META, data, &reply);
-
-        status_t err = reply.readInt32();
-        return err;
-    }
-
-    virtual status_t createInputSurface(
-            node_id node, OMX_U32 port_index, android_dataspace dataSpace,
-            sp<IGraphicBufferProducer> *bufferProducer, MetadataBufferType *type) {
-        Parcel data, reply;
-        status_t err;
-        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
-        data.writeInt32((int32_t)node);
-        data.writeInt32(port_index);
-        data.writeInt32(dataSpace);
-        err = remote()->transact(CREATE_INPUT_SURFACE, data, &reply);
-        if (err != OK) {
-            ALOGW("binder transaction failed: %d", err);
-            return err;
-        }
-
-        // read type even if createInputSurface failed
-        int negotiatedType = reply.readInt32();
-        if (type != NULL) {
-            *type = (MetadataBufferType)negotiatedType;
-        }
-
-        err = reply.readInt32();
-        if (err != OK) {
-            return err;
-        }
-
-        *bufferProducer = IGraphicBufferProducer::asInterface(
-                reply.readStrongBinder());
-
-        return err;
-    }
-
-    virtual status_t createPersistentInputSurface(
-            sp<IGraphicBufferProducer> *bufferProducer,
-            sp<IGraphicBufferConsumer> *bufferConsumer) {
-        Parcel data, reply;
-        status_t err;
-        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
-        err = remote()->transact(CREATE_PERSISTENT_INPUT_SURFACE, data, &reply);
-        if (err != OK) {
-            ALOGW("binder transaction failed: %d", err);
-            return err;
-        }
-
-        err = reply.readInt32();
-        if (err != OK) {
-            return err;
-        }
-
-        *bufferProducer = IGraphicBufferProducer::asInterface(
-                reply.readStrongBinder());
-        *bufferConsumer = IGraphicBufferConsumer::asInterface(
-                reply.readStrongBinder());
-
-        return err;
-    }
-
     virtual status_t setInputSurface(
-            node_id node, OMX_U32 port_index,
-            const sp<IGraphicBufferConsumer> &bufferConsumer, MetadataBufferType *type) {
+            const sp<IOMXBufferSource> &bufferSource) {
         Parcel data, reply;
-        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
-        status_t err;
-        data.writeInt32((int32_t)node);
-        data.writeInt32(port_index);
-        data.writeStrongBinder(IInterface::asBinder(bufferConsumer));
+        data.writeInterfaceToken(IOMXNode::getInterfaceDescriptor());
 
-        err = remote()->transact(SET_INPUT_SURFACE, data, &reply);
+        data.writeStrongBinder(IInterface::asBinder(bufferSource));
+
+        status_t err = remote()->transact(SET_INPUT_SURFACE, data, &reply);
 
         if (err != OK) {
             ALOGW("binder transaction failed: %d", err);
             return err;
         }
 
-        // read type even if setInputSurface failed
-        int negotiatedType = reply.readInt32();
-        if (type != NULL) {
-            *type = (MetadataBufferType)negotiatedType;
-        }
+        err = reply.readInt32();
 
-        return reply.readInt32();
-    }
-
-    virtual status_t signalEndOfInputStream(node_id node) {
-        Parcel data, reply;
-        status_t err;
-        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
-        data.writeInt32((int32_t)node);
-        err = remote()->transact(SIGNAL_END_OF_INPUT_STREAM, data, &reply);
-        if (err != OK) {
-            ALOGW("binder transaction failed: %d", err);
-            return err;
-        }
-
-        return reply.readInt32();
-    }
-
-    virtual status_t storeMetaDataInBuffers(
-            node_id node, OMX_U32 port_index, OMX_BOOL enable, MetadataBufferType *type) {
-        Parcel data, reply;
-        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
-        data.writeInt32((int32_t)node);
-        data.writeInt32(port_index);
-        data.writeInt32((int32_t)enable);
-        data.writeInt32(type == NULL ? kMetadataBufferTypeANWBuffer : *type);
-
-        remote()->transact(STORE_META_DATA_IN_BUFFERS, data, &reply);
-
-        // read type even storeMetaDataInBuffers failed
-        int negotiatedType = reply.readInt32();
-        if (type != NULL) {
-            *type = (MetadataBufferType)negotiatedType;
-        }
-
-        return reply.readInt32();
+        return err;
     }
 
     virtual status_t prepareForAdaptivePlayback(
-            node_id node, OMX_U32 port_index, OMX_BOOL enable,
+            OMX_U32 port_index, OMX_BOOL enable,
             OMX_U32 max_width, OMX_U32 max_height) {
         Parcel data, reply;
-        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
-        data.writeInt32((int32_t)node);
+        data.writeInterfaceToken(IOMXNode::getInterfaceDescriptor());
         data.writeInt32(port_index);
         data.writeInt32((int32_t)enable);
         data.writeInt32(max_width);
@@ -467,11 +309,10 @@
     }
 
     virtual status_t configureVideoTunnelMode(
-            node_id node, OMX_U32 portIndex, OMX_BOOL tunneled,
+            OMX_U32 portIndex, OMX_BOOL tunneled,
             OMX_U32 audioHwSync, native_handle_t **sidebandHandle ) {
         Parcel data, reply;
-        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
-        data.writeInt32((int32_t)node);
+        data.writeInterfaceToken(IOMXNode::getInterfaceDescriptor());
         data.writeInt32(portIndex);
         data.writeInt32((int32_t)tunneled);
         data.writeInt32(audioHwSync);
@@ -486,11 +327,10 @@
 
 
     virtual status_t allocateSecureBuffer(
-            node_id node, OMX_U32 port_index, size_t size,
+            OMX_U32 port_index, size_t size,
             buffer_id *buffer, void **buffer_data, sp<NativeHandle> *native_handle) {
         Parcel data, reply;
-        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
-        data.writeInt32((int32_t)node);
+        data.writeInterfaceToken(IOMXNode::getInterfaceDescriptor());
         data.writeInt32(port_index);
         data.writeInt64(size);
         remote()->transact(ALLOC_SECURE_BUFFER, data, &reply);
@@ -514,34 +354,10 @@
         return err;
     }
 
-    virtual status_t allocateBufferWithBackup(
-            node_id node, OMX_U32 port_index, const sp<IMemory> &params,
-            buffer_id *buffer, OMX_U32 allottedSize) {
-        Parcel data, reply;
-        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
-        data.writeInt32((int32_t)node);
-        data.writeInt32(port_index);
-        data.writeStrongBinder(IInterface::asBinder(params));
-        data.writeInt32(allottedSize);
-        remote()->transact(ALLOC_BUFFER_WITH_BACKUP, data, &reply);
-
-        status_t err = reply.readInt32();
-        if (err != OK) {
-            *buffer = 0;
-
-            return err;
-        }
-
-        *buffer = (buffer_id)reply.readInt32();
-
-        return err;
-    }
-
     virtual status_t freeBuffer(
-            node_id node, OMX_U32 port_index, buffer_id buffer) {
+            OMX_U32 port_index, buffer_id buffer) {
         Parcel data, reply;
-        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
-        data.writeInt32((int32_t)node);
+        data.writeInterfaceToken(IOMXNode::getInterfaceDescriptor());
         data.writeInt32(port_index);
         data.writeInt32((int32_t)buffer);
         remote()->transact(FREE_BUFFER, data, &reply);
@@ -549,11 +365,15 @@
         return reply.readInt32();
     }
 
-    virtual status_t fillBuffer(node_id node, buffer_id buffer, int fenceFd) {
+    virtual status_t fillBuffer(
+            buffer_id buffer, const OMXBuffer &omxBuf, int fenceFd) {
         Parcel data, reply;
-        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
-        data.writeInt32((int32_t)node);
+        data.writeInterfaceToken(IOMXNode::getInterfaceDescriptor());
         data.writeInt32((int32_t)buffer);
+        status_t err = omxBuf.writeToParcel(&data);
+        if (err != OK) {
+            return err;
+        }
         data.writeInt32(fenceFd >= 0);
         if (fenceFd >= 0) {
             data.writeFileDescriptor(fenceFd, true /* takeOwnership */);
@@ -564,16 +384,15 @@
     }
 
     virtual status_t emptyBuffer(
-            node_id node,
-            buffer_id buffer,
-            OMX_U32 range_offset, OMX_U32 range_length,
+            buffer_id buffer, const OMXBuffer &omxBuf,
             OMX_U32 flags, OMX_TICKS timestamp, int fenceFd) {
         Parcel data, reply;
-        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
-        data.writeInt32((int32_t)node);
+        data.writeInterfaceToken(IOMXNode::getInterfaceDescriptor());
         data.writeInt32((int32_t)buffer);
-        data.writeInt32(range_offset);
-        data.writeInt32(range_length);
+        status_t err = omxBuf.writeToParcel(&data);
+        if (err != OK) {
+            return err;
+        }
         data.writeInt32(flags);
         data.writeInt64(timestamp);
         data.writeInt32(fenceFd >= 0);
@@ -586,12 +405,10 @@
     }
 
     virtual status_t getExtensionIndex(
-            node_id node,
             const char *parameter_name,
             OMX_INDEXTYPE *index) {
         Parcel data, reply;
-        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
-        data.writeInt32((int32_t)node);
+        data.writeInterfaceToken(IOMXNode::getInterfaceDescriptor());
         data.writeCString(parameter_name);
 
         remote()->transact(GET_EXTENSION_INDEX, data, &reply);
@@ -606,26 +423,141 @@
         return err;
     }
 
-    virtual status_t setInternalOption(
-            node_id node,
-            OMX_U32 port_index,
-            InternalOptionType type,
-            const void *optionData,
-            size_t size) {
+    virtual status_t dispatchMessage(const omx_message &msg) {
         Parcel data, reply;
-        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
-        data.writeInt32((int32_t)node);
-        data.writeInt32(port_index);
-        data.writeInt64(size);
-        data.write(optionData, size);
-        data.writeInt32(type);
-        remote()->transact(SET_INTERNAL_OPTION, data, &reply);
+        data.writeInterfaceToken(IOMXNode::getInterfaceDescriptor());
+        data.writeInt32(msg.fenceFd >= 0);
+        if (msg.fenceFd >= 0) {
+            data.writeFileDescriptor(msg.fenceFd, true /* takeOwnership */);
+        }
+        data.writeInt32(msg.type);
+        data.write(&msg.u, sizeof(msg.u));
+
+        remote()->transact(DISPATCH_MESSAGE, data, &reply);
+
+        return reply.readInt32();
+    }
+
+    virtual status_t setQuirks(OMX_U32 quirks) {
+        Parcel data, reply;
+        data.writeInterfaceToken(IOMXNode::getInterfaceDescriptor());
+        data.writeInt32(quirks);
+
+        remote()->transact(SET_QUIRKS, data, &reply);
 
         return reply.readInt32();
     }
 };
 
+using ::android::hardware::media::omx::V1_0::utils::LWOmxNode;
+class HpOMXNode : public HpInterface<BpOMXNode, LWOmxNode> {
+public:
+    HpOMXNode(const sp<IBinder>& base) : PBase(base) {}
+
+    virtual status_t freeNode() {
+        return mBase->freeNode();
+    }
+
+    virtual status_t sendCommand(
+            OMX_COMMANDTYPE cmd, OMX_S32 param) {
+        return mBase->sendCommand(cmd, param);
+    }
+
+    virtual status_t getParameter(
+            OMX_INDEXTYPE index, void *params, size_t size) {
+        return mBase->getParameter(index, params, size);
+    }
+
+    virtual status_t setParameter(
+            OMX_INDEXTYPE index, const void *params, size_t size) {
+        return mBase->setParameter(index, params, size);
+    }
+
+    virtual status_t getConfig(
+            OMX_INDEXTYPE index, void *params, size_t size) {
+        return mBase->getConfig(index, params, size);
+    }
+
+    virtual status_t setConfig(
+            OMX_INDEXTYPE index, const void *params, size_t size) {
+        return mBase->setConfig(index, params, size);
+    }
+
+    virtual status_t setPortMode(
+            OMX_U32 port_index, IOMX::PortMode mode) {
+        return mBase->setPortMode(port_index, mode);
+    }
+
+    virtual status_t prepareForAdaptivePlayback(
+            OMX_U32 portIndex, OMX_BOOL enable,
+            OMX_U32 maxFrameWidth, OMX_U32 maxFrameHeight) {
+        return mBase->prepareForAdaptivePlayback(
+                portIndex, enable, maxFrameWidth, maxFrameHeight);
+    }
+
+    virtual status_t configureVideoTunnelMode(
+            OMX_U32 portIndex, OMX_BOOL tunneled,
+            OMX_U32 audioHwSync, native_handle_t **sidebandHandle) {
+        return mBase->configureVideoTunnelMode(
+                portIndex, tunneled, audioHwSync, sidebandHandle);
+    }
+
+    virtual status_t getGraphicBufferUsage(
+            OMX_U32 port_index, OMX_U32* usage) {
+        return mBase->getGraphicBufferUsage(port_index, usage);
+    }
+
+    virtual status_t setInputSurface(
+            const sp<IOMXBufferSource> &bufferSource) {
+        return mBase->setInputSurface(bufferSource);
+    }
+
+    virtual status_t allocateSecureBuffer(
+            OMX_U32 port_index, size_t size, buffer_id *buffer,
+            void **buffer_data, sp<NativeHandle> *native_handle) {
+        return mBase->allocateSecureBuffer(
+                port_index, size, buffer, buffer_data, native_handle);
+    }
+
+    virtual status_t useBuffer(
+            OMX_U32 port_index, const OMXBuffer &omxBuf, buffer_id *buffer) {
+        return mBase->useBuffer(port_index, omxBuf, buffer);
+    }
+
+    virtual status_t freeBuffer(
+            OMX_U32 port_index, buffer_id buffer) {
+        return mBase->freeBuffer(port_index, buffer);
+    }
+
+    virtual status_t fillBuffer(
+            buffer_id buffer, const OMXBuffer &omxBuf, int fenceFd = -1) {
+        return mBase->fillBuffer(buffer, omxBuf, fenceFd);
+    }
+
+    virtual status_t emptyBuffer(
+            buffer_id buffer, const OMXBuffer &omxBuf,
+            OMX_U32 flags, OMX_TICKS timestamp, int fenceFd = -1) {
+        return mBase->emptyBuffer(buffer, omxBuf, flags, timestamp, fenceFd);
+    }
+
+    virtual status_t getExtensionIndex(
+            const char *parameter_name,
+            OMX_INDEXTYPE *index) {
+        return mBase->getExtensionIndex(parameter_name, index);
+    }
+
+    virtual status_t dispatchMessage(const omx_message &msg) {
+        return mBase->dispatchMessage(msg);
+    }
+
+    // TODO: this is temporary, will be removed when quirks move to OMX side
+    virtual status_t setQuirks(OMX_U32 quirks) {
+        return mBase->setQuirks(quirks);
+    }
+};
+
 IMPLEMENT_META_INTERFACE(OMX, "android.hardware.IOMX");
+IMPLEMENT_HYBRID_META_INTERFACE(OMXNode, IOmxNode, "android.hardware.IOMXNode");
 
 ////////////////////////////////////////////////////////////////////////////////
 
@@ -638,16 +570,6 @@
 status_t BnOMX::onTransact(
     uint32_t code, const Parcel &data, Parcel *reply, uint32_t flags) {
     switch (code) {
-        case LIVES_LOCALLY:
-        {
-            CHECK_OMX_INTERFACE(IOMX, data, reply);
-            node_id node = (node_id)data.readInt32();
-            pid_t pid = (pid_t)data.readInt32();
-            reply->writeInt32(livesLocally(node, pid));
-
-            return OK;
-        }
-
         case LIST_NODES:
         {
             CHECK_OMX_INTERFACE(IOMX, data, reply);
@@ -686,40 +608,62 @@
                 return NO_ERROR;
             }
 
-            node_id node;
+            sp<IOMXNode> omxNode;
 
-            status_t err = allocateNode(name, observer,
-                    NULL /* nodeBinder */, &node);
+            status_t err = allocateNode(name, observer, &omxNode);
+
             reply->writeInt32(err);
             if (err == OK) {
-                reply->writeInt32((int32_t)node);
+                reply->writeStrongBinder(IInterface::asBinder(omxNode));
             }
 
             return NO_ERROR;
         }
 
-        case FREE_NODE:
+        case CREATE_INPUT_SURFACE:
         {
             CHECK_OMX_INTERFACE(IOMX, data, reply);
 
-            node_id node = (node_id)data.readInt32();
+            sp<IGraphicBufferProducer> bufferProducer;
+            sp<IGraphicBufferSource> bufferSource;
+            status_t err = createInputSurface(&bufferProducer, &bufferSource);
 
-            reply->writeInt32(freeNode(node));
+            reply->writeInt32(err);
+
+            if (err == OK) {
+                reply->writeStrongBinder(IInterface::asBinder(bufferProducer));
+                reply->writeStrongBinder(IInterface::asBinder(bufferSource));
+            }
+
+            return NO_ERROR;
+        }
+
+        default:
+            return BBinder::onTransact(code, data, reply, flags);
+    }
+}
+
+status_t BnOMXNode::onTransact(
+    uint32_t code, const Parcel &data, Parcel *reply, uint32_t flags) {
+    switch (code) {
+        case FREE_NODE:
+        {
+            CHECK_OMX_INTERFACE(IOMXNode, data, reply);
+
+            reply->writeInt32(freeNode());
 
             return NO_ERROR;
         }
 
         case SEND_COMMAND:
         {
-            CHECK_OMX_INTERFACE(IOMX, data, reply);
-
-            node_id node = (node_id)data.readInt32();
+            CHECK_OMX_INTERFACE(IOMXNode, data, reply);
 
             OMX_COMMANDTYPE cmd =
                 static_cast<OMX_COMMANDTYPE>(data.readInt32());
 
             OMX_S32 param = data.readInt32();
-            reply->writeInt32(sendCommand(node, cmd, param));
+            reply->writeInt32(sendCommand(cmd, param));
 
             return NO_ERROR;
         }
@@ -728,11 +672,9 @@
         case SET_PARAMETER:
         case GET_CONFIG:
         case SET_CONFIG:
-        case SET_INTERNAL_OPTION:
         {
-            CHECK_OMX_INTERFACE(IOMX, data, reply);
+            CHECK_OMX_INTERFACE(IOMXNode, data, reply);
 
-            node_id node = (node_id)data.readInt32();
             OMX_INDEXTYPE index = static_cast<OMX_INDEXTYPE>(data.readInt32());
 
             size_t size = data.readInt64();
@@ -742,8 +684,7 @@
             size_t pageSize = 0;
             size_t allocSize = 0;
             bool isUsageBits = (index == (OMX_INDEXTYPE) OMX_IndexParamConsumerUsageBits);
-            if ((isUsageBits && size < 4) ||
-                    (!isUsageBits && code != SET_INTERNAL_OPTION && size < 8)) {
+            if ((isUsageBits && size < 4) || (!isUsageBits && size < 8)) {
                 // we expect the structure to contain at least the size and
                 // version, 8 bytes total
                 ALOGE("b/27207275 (%zu) (%d/%d)", size, int(index), int(code));
@@ -765,8 +706,7 @@
                     } else {
                         err = NOT_ENOUGH_DATA;
                         OMX_U32 declaredSize = *(OMX_U32*)params;
-                        if (code != SET_INTERNAL_OPTION &&
-                                index != (OMX_INDEXTYPE) OMX_IndexParamConsumerUsageBits &&
+                        if (index != (OMX_INDEXTYPE) OMX_IndexParamConsumerUsageBits &&
                                 declaredSize > size) {
                             // the buffer says it's bigger than it actually is
                             ALOGE("b/27207275 (%u/%zu)", declaredSize, size);
@@ -781,26 +721,17 @@
                             } else {
                                 switch (code) {
                                     case GET_PARAMETER:
-                                        err = getParameter(node, index, params, size);
+                                        err = getParameter(index, params, size);
                                         break;
                                     case SET_PARAMETER:
-                                        err = setParameter(node, index, params, size);
+                                        err = setParameter(index, params, size);
                                         break;
                                     case GET_CONFIG:
-                                        err = getConfig(node, index, params, size);
+                                        err = getConfig(index, params, size);
                                         break;
                                     case SET_CONFIG:
-                                        err = setConfig(node, index, params, size);
+                                        err = setConfig(index, params, size);
                                         break;
-                                    case SET_INTERNAL_OPTION:
-                                    {
-                                        InternalOptionType type =
-                                            (InternalOptionType)data.readInt32();
-
-                                        err = setInternalOption(node, index, type, params, size);
-                                        break;
-                                    }
-
                                     default:
                                         TRESPASS();
                                 }
@@ -826,44 +757,24 @@
             return NO_ERROR;
         }
 
-        case GET_STATE:
+        case SET_PORT_MODE:
         {
-            CHECK_OMX_INTERFACE(IOMX, data, reply);
-
-            node_id node = (node_id)data.readInt32();
-            OMX_STATETYPE state = OMX_StateInvalid;
-
-            status_t err = getState(node, &state);
-            reply->writeInt32(state);
-            reply->writeInt32(err);
-
-            return NO_ERROR;
-        }
-
-        case ENABLE_NATIVE_BUFFERS:
-        {
-            CHECK_OMX_INTERFACE(IOMX, data, reply);
-
-            node_id node = (node_id)data.readInt32();
+            CHECK_OMX_INTERFACE(IOMXNode, data, reply);
             OMX_U32 port_index = data.readInt32();
-            OMX_BOOL graphic = (OMX_BOOL)data.readInt32();
-            OMX_BOOL enable = (OMX_BOOL)data.readInt32();
-
-            status_t err = enableNativeBuffers(node, port_index, graphic, enable);
-            reply->writeInt32(err);
+            IOMX::PortMode mode = (IOMX::PortMode) data.readInt32();
+            reply->writeInt32(setPortMode(port_index, mode));
 
             return NO_ERROR;
         }
 
         case GET_GRAPHIC_BUFFER_USAGE:
         {
-            CHECK_OMX_INTERFACE(IOMX, data, reply);
+            CHECK_OMX_INTERFACE(IOMXNode, data, reply);
 
-            node_id node = (node_id)data.readInt32();
             OMX_U32 port_index = data.readInt32();
 
             OMX_U32 usage = 0;
-            status_t err = getGraphicBufferUsage(node, port_index, &usage);
+            status_t err = getGraphicBufferUsage(port_index, &usage);
             reply->writeInt32(err);
             reply->writeInt32(usage);
 
@@ -872,22 +783,18 @@
 
         case USE_BUFFER:
         {
-            CHECK_OMX_INTERFACE(IOMX, data, reply);
+            CHECK_OMX_INTERFACE(IOMXNode, data, reply);
 
-            node_id node = (node_id)data.readInt32();
             OMX_U32 port_index = data.readInt32();
-            sp<IMemory> params =
-                interface_cast<IMemory>(data.readStrongBinder());
-            OMX_U32 allottedSize = data.readInt32();
 
-            if (params == NULL) {
-                ALOGE("b/26392700");
-                reply->writeInt32(INVALID_OPERATION);
-                return NO_ERROR;
+            OMXBuffer omxBuf;
+            status_t err = omxBuf.readFromParcel(&data);
+            if (err != OK) {
+                return err;
             }
 
             buffer_id buffer;
-            status_t err = useBuffer(node, port_index, params, &buffer, allottedSize);
+            err = useBuffer(port_index, omxBuf, &buffer);
             reply->writeInt32(err);
 
             if (err == OK) {
@@ -897,160 +804,14 @@
             return NO_ERROR;
         }
 
-        case USE_GRAPHIC_BUFFER:
-        {
-            CHECK_OMX_INTERFACE(IOMX, data, reply);
-
-            node_id node = (node_id)data.readInt32();
-            OMX_U32 port_index = data.readInt32();
-            sp<GraphicBuffer> graphicBuffer = new GraphicBuffer();
-            data.read(*graphicBuffer);
-
-            buffer_id buffer;
-            status_t err = useGraphicBuffer(
-                    node, port_index, graphicBuffer, &buffer);
-            reply->writeInt32(err);
-
-            if (err == OK) {
-                reply->writeInt32((int32_t)buffer);
-            }
-
-            return NO_ERROR;
-        }
-
-        case UPDATE_GRAPHIC_BUFFER_IN_META:
-        {
-            CHECK_OMX_INTERFACE(IOMX, data, reply);
-
-            node_id node = (node_id)data.readInt32();
-            OMX_U32 port_index = data.readInt32();
-            sp<GraphicBuffer> graphicBuffer = new GraphicBuffer();
-            data.read(*graphicBuffer);
-            buffer_id buffer = (buffer_id)data.readInt32();
-
-            status_t err = updateGraphicBufferInMeta(
-                    node, port_index, graphicBuffer, buffer);
-            reply->writeInt32(err);
-
-            return NO_ERROR;
-        }
-
-        case UPDATE_NATIVE_HANDLE_IN_META:
-        {
-            CHECK_OMX_INTERFACE(IOMX, data, reply);
-
-            node_id node = (node_id)data.readInt32();
-            OMX_U32 port_index = data.readInt32();
-            native_handle *handle = NULL;
-            if (data.readInt32()) {
-                handle = data.readNativeHandle();
-            }
-            buffer_id buffer = (buffer_id)data.readInt32();
-
-            status_t err = updateNativeHandleInMeta(
-                    node, port_index, NativeHandle::create(handle, true /* ownshandle */), buffer);
-            reply->writeInt32(err);
-
-            return NO_ERROR;
-        }
-
-        case CREATE_INPUT_SURFACE:
-        {
-            CHECK_OMX_INTERFACE(IOMX, data, reply);
-
-            node_id node = (node_id)data.readInt32();
-            OMX_U32 port_index = data.readInt32();
-            android_dataspace dataSpace = (android_dataspace)data.readInt32();
-
-            sp<IGraphicBufferProducer> bufferProducer;
-            MetadataBufferType type = kMetadataBufferTypeInvalid;
-            status_t err = createInputSurface(node, port_index, dataSpace, &bufferProducer, &type);
-
-            if ((err != OK) && (type == kMetadataBufferTypeInvalid)) {
-                android_errorWriteLog(0x534e4554, "26324358");
-            }
-
-            reply->writeInt32(type);
-            reply->writeInt32(err);
-
-            if (err == OK) {
-                reply->writeStrongBinder(IInterface::asBinder(bufferProducer));
-            }
-
-            return NO_ERROR;
-        }
-
-        case CREATE_PERSISTENT_INPUT_SURFACE:
-        {
-            CHECK_OMX_INTERFACE(IOMX, data, reply);
-
-            sp<IGraphicBufferProducer> bufferProducer;
-            sp<IGraphicBufferConsumer> bufferConsumer;
-            status_t err = createPersistentInputSurface(
-                    &bufferProducer, &bufferConsumer);
-
-            reply->writeInt32(err);
-
-            if (err == OK) {
-                reply->writeStrongBinder(IInterface::asBinder(bufferProducer));
-                reply->writeStrongBinder(IInterface::asBinder(bufferConsumer));
-            }
-
-            return NO_ERROR;
-        }
-
         case SET_INPUT_SURFACE:
         {
-            CHECK_OMX_INTERFACE(IOMX, data, reply);
+            CHECK_OMX_INTERFACE(IOMXNode, data, reply);
 
-            node_id node = (node_id)data.readInt32();
-            OMX_U32 port_index = data.readInt32();
+            sp<IOMXBufferSource> bufferSource =
+                    interface_cast<IOMXBufferSource>(data.readStrongBinder());
 
-            sp<IGraphicBufferConsumer> bufferConsumer =
-                    interface_cast<IGraphicBufferConsumer>(data.readStrongBinder());
-
-            MetadataBufferType type = kMetadataBufferTypeInvalid;
-
-            status_t err = INVALID_OPERATION;
-            if (bufferConsumer == NULL) {
-                ALOGE("b/26392700");
-            } else {
-                err = setInputSurface(node, port_index, bufferConsumer, &type);
-
-                if ((err != OK) && (type == kMetadataBufferTypeInvalid)) {
-                   android_errorWriteLog(0x534e4554, "26324358");
-                }
-            }
-
-            reply->writeInt32(type);
-            reply->writeInt32(err);
-            return NO_ERROR;
-        }
-
-        case SIGNAL_END_OF_INPUT_STREAM:
-        {
-            CHECK_OMX_INTERFACE(IOMX, data, reply);
-
-            node_id node = (node_id)data.readInt32();
-
-            status_t err = signalEndOfInputStream(node);
-            reply->writeInt32(err);
-
-            return NO_ERROR;
-        }
-
-        case STORE_META_DATA_IN_BUFFERS:
-        {
-            CHECK_OMX_INTERFACE(IOMX, data, reply);
-
-            node_id node = (node_id)data.readInt32();
-            OMX_U32 port_index = data.readInt32();
-            OMX_BOOL enable = (OMX_BOOL)data.readInt32();
-
-            MetadataBufferType type = (MetadataBufferType)data.readInt32();
-            status_t err = storeMetaDataInBuffers(node, port_index, enable, &type);
-
-            reply->writeInt32(type);
+            status_t err = setInputSurface(bufferSource);
             reply->writeInt32(err);
 
             return NO_ERROR;
@@ -1058,16 +819,15 @@
 
         case PREPARE_FOR_ADAPTIVE_PLAYBACK:
         {
-            CHECK_OMX_INTERFACE(IOMX, data, reply);
+            CHECK_OMX_INTERFACE(IOMXNode, data, reply);
 
-            node_id node = (node_id)data.readInt32();
             OMX_U32 port_index = data.readInt32();
             OMX_BOOL enable = (OMX_BOOL)data.readInt32();
             OMX_U32 max_width = data.readInt32();
             OMX_U32 max_height = data.readInt32();
 
             status_t err = prepareForAdaptivePlayback(
-                    node, port_index, enable, max_width, max_height);
+                    port_index, enable, max_width, max_height);
             reply->writeInt32(err);
 
             return NO_ERROR;
@@ -1075,16 +835,15 @@
 
         case CONFIGURE_VIDEO_TUNNEL_MODE:
         {
-            CHECK_OMX_INTERFACE(IOMX, data, reply);
+            CHECK_OMX_INTERFACE(IOMXNode, data, reply);
 
-            node_id node = (node_id)data.readInt32();
             OMX_U32 port_index = data.readInt32();
             OMX_BOOL tunneled = (OMX_BOOL)data.readInt32();
             OMX_U32 audio_hw_sync = data.readInt32();
 
             native_handle_t *sideband_handle = NULL;
             status_t err = configureVideoTunnelMode(
-                    node, port_index, tunneled, audio_hw_sync, &sideband_handle);
+                    port_index, tunneled, audio_hw_sync, &sideband_handle);
             reply->writeInt32(err);
             if(err == OK){
                 reply->writeNativeHandle(sideband_handle);
@@ -1095,11 +854,10 @@
 
         case ALLOC_SECURE_BUFFER:
         {
-            CHECK_OMX_INTERFACE(IOMX, data, reply);
+            CHECK_OMX_INTERFACE(IOMXNode, data, reply);
 
-            node_id node = (node_id)data.readInt32();
             OMX_U32 port_index = data.readInt32();
-            if (!isSecure(node) || port_index != 0 /* kPortIndexInput */) {
+            if (!isSecure() || port_index != 0 /* kPortIndexInput */) {
                 ALOGE("b/24310423");
                 reply->writeInt32(INVALID_OPERATION);
                 return NO_ERROR;
@@ -1111,7 +869,7 @@
             void *buffer_data = NULL;
             sp<NativeHandle> native_handle;
             status_t err = allocateSecureBuffer(
-                    node, port_index, size, &buffer, &buffer_data, &native_handle);
+                    port_index, size, &buffer, &buffer_data, &native_handle);
             reply->writeInt32(err);
 
             if (err == OK) {
@@ -1125,83 +883,61 @@
             return NO_ERROR;
         }
 
-        case ALLOC_BUFFER_WITH_BACKUP:
-        {
-            CHECK_OMX_INTERFACE(IOMX, data, reply);
-
-            node_id node = (node_id)data.readInt32();
-            OMX_U32 port_index = data.readInt32();
-            sp<IMemory> params =
-                interface_cast<IMemory>(data.readStrongBinder());
-            OMX_U32 allottedSize = data.readInt32();
-
-            if (params == NULL) {
-                ALOGE("b/26392700");
-                reply->writeInt32(INVALID_OPERATION);
-                return NO_ERROR;
-            }
-
-            buffer_id buffer;
-            status_t err = allocateBufferWithBackup(
-                    node, port_index, params, &buffer, allottedSize);
-
-            reply->writeInt32(err);
-
-            if (err == OK) {
-                reply->writeInt32((int32_t)buffer);
-            }
-
-            return NO_ERROR;
-        }
-
         case FREE_BUFFER:
         {
-            CHECK_OMX_INTERFACE(IOMX, data, reply);
+            CHECK_OMX_INTERFACE(IOMXNode, data, reply);
 
-            node_id node = (node_id)data.readInt32();
             OMX_U32 port_index = data.readInt32();
             buffer_id buffer = (buffer_id)data.readInt32();
-            reply->writeInt32(freeBuffer(node, port_index, buffer));
+            reply->writeInt32(freeBuffer(port_index, buffer));
 
             return NO_ERROR;
         }
 
         case FILL_BUFFER:
         {
-            CHECK_OMX_INTERFACE(IOMX, data, reply);
+            CHECK_OMX_INTERFACE(IOMXNode, data, reply);
 
-            node_id node = (node_id)data.readInt32();
             buffer_id buffer = (buffer_id)data.readInt32();
+
+            OMXBuffer omxBuf;
+            status_t err = omxBuf.readFromParcel(&data);
+            if (err != OK) {
+                return err;
+            }
+
             bool haveFence = data.readInt32();
             int fenceFd = haveFence ? ::dup(data.readFileDescriptor()) : -1;
-            reply->writeInt32(fillBuffer(node, buffer, fenceFd));
+
+            reply->writeInt32(fillBuffer(buffer, omxBuf, fenceFd));
 
             return NO_ERROR;
         }
 
         case EMPTY_BUFFER:
         {
-            CHECK_OMX_INTERFACE(IOMX, data, reply);
+            CHECK_OMX_INTERFACE(IOMXNode, data, reply);
 
-            node_id node = (node_id)data.readInt32();
             buffer_id buffer = (buffer_id)data.readInt32();
-            OMX_U32 range_offset = data.readInt32();
-            OMX_U32 range_length = data.readInt32();
+            OMXBuffer omxBuf;
+            status_t err = omxBuf.readFromParcel(&data);
+            if (err != OK) {
+                return err;
+            }
             OMX_U32 flags = data.readInt32();
             OMX_TICKS timestamp = data.readInt64();
             bool haveFence = data.readInt32();
             int fenceFd = haveFence ? ::dup(data.readFileDescriptor()) : -1;
             reply->writeInt32(emptyBuffer(
-                    node, buffer, range_offset, range_length, flags, timestamp, fenceFd));
+                    buffer, omxBuf, flags, timestamp, fenceFd));
 
             return NO_ERROR;
         }
 
         case GET_EXTENSION_INDEX:
         {
-            CHECK_OMX_INTERFACE(IOMX, data, reply);
+            CHECK_OMX_INTERFACE(IOMXNode, data, reply);
 
-            node_id node = (node_id)data.readInt32();
             const char *parameter_name = data.readCString();
 
             if (parameter_name == NULL) {
@@ -1211,7 +947,7 @@
             }
 
             OMX_INDEXTYPE index;
-            status_t err = getExtensionIndex(node, parameter_name, &index);
+            status_t err = getExtensionIndex(parameter_name, &index);
 
             reply->writeInt32(err);
 
@@ -1222,6 +958,34 @@
             return OK;
         }
 
+        case DISPATCH_MESSAGE:
+        {
+            CHECK_OMX_INTERFACE(IOMXNode, data, reply);
+            omx_message msg;
+            int haveFence = data.readInt32();
+            msg.fenceFd = haveFence ? ::dup(data.readFileDescriptor()) : -1;
+            msg.type = (typeof(msg.type))data.readInt32();
+            status_t err = data.read(&msg.u, sizeof(msg.u));
+
+            if (err == OK) {
+                err = dispatchMessage(msg);
+            }
+            reply->writeInt32(err);
+
+            return NO_ERROR;
+        }
+
+        case SET_QUIRKS:
+        {
+            CHECK_OMX_INTERFACE(IOMXNode, data, reply);
+
+            OMX_U32 quirks = data.readInt32();
+
+            reply->writeInt32(setQuirks(quirks));
+
+            return NO_ERROR;
+        }
+
         default:
             return BBinder::onTransact(code, data, reply, flags);
     }
@@ -1238,14 +1002,12 @@
     virtual void onMessages(const std::list<omx_message> &messages) {
         Parcel data, reply;
         std::list<omx_message>::const_iterator it = messages.cbegin();
-        bool first = true;
+        if (messages.empty()) {
+            return;
+        }
+        data.writeInterfaceToken(IOMXObserver::getInterfaceDescriptor());
         while (it != messages.cend()) {
             const omx_message &msg = *it++;
-            if (first) {
-                data.writeInterfaceToken(IOMXObserver::getInterfaceDescriptor());
-                data.writeInt32(msg.node);
-                first = false;
-            }
             data.writeInt32(msg.fenceFd >= 0);
             if (msg.fenceFd >= 0) {
                 data.writeFileDescriptor(msg.fenceFd, true /* takeOwnership */);
@@ -1254,10 +1016,8 @@
             data.write(&msg.u, sizeof(msg.u));
             ALOGV("onMessage writing message %d, size %zu", msg.type, sizeof(msg));
         }
-        if (!first) {
-            data.writeInt32(-1); // mark end
-            remote()->transact(OBSERVER_ON_MSG, data, &reply, IBinder::FLAG_ONEWAY);
-        }
+        data.writeInt32(-1); // mark end
+        remote()->transact(OBSERVER_ON_MSG, data, &reply, IBinder::FLAG_ONEWAY);
     }
 };
 
@@ -1269,7 +1029,6 @@
         case OBSERVER_ON_MSG:
         {
             CHECK_OMX_INTERFACE(IOMXObserver, data, reply);
-            IOMX::node_id node = data.readInt32();
             std::list<omx_message> messages;
             status_t err = FAILED_TRANSACTION; // must receive at least one message
             do {
@@ -1278,7 +1037,6 @@
                     break;
                 }
                 omx_message msg;
-                msg.node = node;
                 msg.fenceFd = haveFence ? ::dup(data.readFileDescriptor()) : -1;
                 msg.type = (typeof(msg.type))data.readInt32();
                 err = data.read(&msg.u, sizeof(msg.u));
diff --git a/media/libmedia/MediaAnalyticsItem.cpp b/media/libmedia/MediaAnalyticsItem.cpp
new file mode 100644
index 0000000..229e747
--- /dev/null
+++ b/media/libmedia/MediaAnalyticsItem.cpp
@@ -0,0 +1,867 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#undef LOG_TAG
+#define LOG_TAG "MediaAnalyticsItem"
+
+#include <inttypes.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+
+#include <binder/Parcel.h>
+#include <utils/Errors.h>
+#include <utils/Log.h>
+#include <utils/Mutex.h>
+#include <utils/SortedVector.h>
+#include <utils/threads.h>
+
+#include <media/stagefright/foundation/AString.h>
+
+#include <binder/IServiceManager.h>
+#include <media/IMediaAnalyticsService.h>
+#include <media/MediaAnalyticsItem.h>
+
+namespace android {
+
+#define DEBUG_SERVICEACCESS     0
+#define DEBUG_API               0
+#define DEBUG_ALLOCATIONS       0
+
+// after this many failed attempts, we stop trying [from this process] and just say that
+// the service is off.
+#define SVC_TRIES               2
+
+// the few universal keys we have
+const MediaAnalyticsItem::Key MediaAnalyticsItem::kKeyAny  = "any";
+const MediaAnalyticsItem::Key MediaAnalyticsItem::kKeyNone  = "none";
+
+const char * const MediaAnalyticsItem::EnabledProperty  = "media.metrics.enabled";
+const char * const MediaAnalyticsItem::EnabledPropertyPersist  = "persist.media.metrics.enabled";
+const int MediaAnalyticsItem::EnabledProperty_default  = 1;
+
+
+// access functions for the class
+MediaAnalyticsItem::MediaAnalyticsItem()
+    : mPid(-1),
+      mUid(-1),
+      mSessionID(MediaAnalyticsItem::SessionIDNone),
+      mTimestamp(0),
+      mFinalized(0),
+      mPropCount(0), mPropSize(0), mProps(NULL)
+{
+    mKey = MediaAnalyticsItem::kKeyNone;
+}
+
+MediaAnalyticsItem::MediaAnalyticsItem(MediaAnalyticsItem::Key key)
+    : mPid(-1),
+      mUid(-1),
+      mSessionID(MediaAnalyticsItem::SessionIDNone),
+      mTimestamp(0),
+      mFinalized(0),
+      mPropCount(0), mPropSize(0), mProps(NULL)
+{
+    if (DEBUG_ALLOCATIONS) {
+        ALOGD("Allocate MediaAnalyticsItem @ %p", this);
+    }
+    mKey = key;
+}
+
+MediaAnalyticsItem::~MediaAnalyticsItem() {
+    if (DEBUG_ALLOCATIONS) {
+        ALOGD("Destroy  MediaAnalyticsItem @ %p", this);
+    }
+    clear();
+}
+
+void MediaAnalyticsItem::clear() {
+
+    // clean allocated storage from key
+    mKey.clear();
+
+    // clean various major parameters
+    mSessionID = MediaAnalyticsItem::SessionIDNone;
+
+    // clean attributes
+    // contents of the attributes
+    for (size_t i = 0 ; i < mPropSize; i++ ) {
+        clearProp(&mProps[i]);
+    }
+    // the attribute records themselves
+    if (mProps != NULL) {
+        free(mProps);
+        mProps = NULL;
+    }
+    mPropSize = 0;
+    mPropCount = 0;
+
+    return;
+}
+
+// make a deep copy of myself
+MediaAnalyticsItem *MediaAnalyticsItem::dup() {
+    MediaAnalyticsItem *dst = new MediaAnalyticsItem(this->mKey);
+
+    if (dst != NULL) {
+        // key as part of constructor
+        dst->mPid = this->mPid;
+        dst->mUid = this->mUid;
+        dst->mSessionID = this->mSessionID;
+        dst->mTimestamp = this->mTimestamp;
+        dst->mFinalized = this->mFinalized;
+
+        // properties aka attributes
+        dst->growProps(this->mPropCount);
+        for(size_t i=0;i<mPropCount;i++) {
+            copyProp(&dst->mProps[i], &this->mProps[i]);
+        }
+        dst->mPropCount = this->mPropCount;
+    }
+
+    return dst;
+}
+
+// so clients can send intermediate values to be overlaid later
+MediaAnalyticsItem &MediaAnalyticsItem::setFinalized(bool value) {
+    mFinalized = value;
+    return *this;
+}
+
+bool MediaAnalyticsItem::getFinalized() const {
+    return mFinalized;
+}
+
+MediaAnalyticsItem &MediaAnalyticsItem::setSessionID(MediaAnalyticsItem::SessionID_t id) {
+    mSessionID = id;
+    return *this;
+}
+
+MediaAnalyticsItem::SessionID_t MediaAnalyticsItem::getSessionID() const {
+    return mSessionID;
+}
+
+MediaAnalyticsItem::SessionID_t MediaAnalyticsItem::generateSessionID() {
+
+    if (mSessionID == SessionIDNone) {
+        // get one from the server
+        MediaAnalyticsItem::SessionID_t newid = SessionIDNone;
+        sp<IMediaAnalyticsService> svc = getInstance();
+        if (svc != NULL) {
+            newid = svc->generateUniqueSessionID();
+        }
+        mSessionID = newid;
+    }
+
+    return mSessionID;
+}
+
+MediaAnalyticsItem &MediaAnalyticsItem::clearSessionID() {
+    mSessionID = MediaAnalyticsItem::SessionIDNone;
+    return *this;
+}
+
+MediaAnalyticsItem &MediaAnalyticsItem::setTimestamp(nsecs_t ts) {
+    mTimestamp = ts;
+    return *this;
+}
+
+nsecs_t MediaAnalyticsItem::getTimestamp() const {
+    return mTimestamp;
+}
+
+MediaAnalyticsItem &MediaAnalyticsItem::setPid(pid_t pid) {
+    mPid = pid;
+    return *this;
+}
+
+pid_t MediaAnalyticsItem::getPid() const {
+    return mPid;
+}
+
+MediaAnalyticsItem &MediaAnalyticsItem::setUid(uid_t uid) {
+    mUid = uid;
+    return *this;
+}
+
+uid_t MediaAnalyticsItem::getUid() const {
+    return mUid;
+}
+
+// this key is for the overall record -- "codec", "player", "drm", etc
+MediaAnalyticsItem &MediaAnalyticsItem::setKey(MediaAnalyticsItem::Key key) {
+    mKey = key;
+    return *this;
+}
+
+MediaAnalyticsItem::Key MediaAnalyticsItem::getKey() {
+    return mKey;
+}
+
+// number of attributes we have in this record
+int32_t MediaAnalyticsItem::count() const {
+    return mPropCount;
+}
+
+// find the proper entry in the list
+size_t MediaAnalyticsItem::findPropIndex(const char *name, size_t len)
+{
+    size_t i = 0;
+    for (; i < mPropCount; i++) {
+        Prop *prop = &mProps[i];
+        if (prop->mNameLen != len) {
+            continue;
+        }
+        if (memcmp(name, prop->mName, len) == 0) {
+            break;
+        }
+    }
+    return i;
+}
+
+MediaAnalyticsItem::Prop *MediaAnalyticsItem::findProp(const char *name) {
+    size_t len = strlen(name);
+    size_t i = findPropIndex(name, len);
+    if (i < mPropCount) {
+        return &mProps[i];
+    }
+    return NULL;
+}
+
+void MediaAnalyticsItem::Prop::setName(const char *name, size_t len) {
+    mNameLen = len;
+    mName = (const char *) malloc(len+1);
+    memcpy ((void *)mName, name, len+1);
+}
+
+// used only as part of a storing operation
+MediaAnalyticsItem::Prop *MediaAnalyticsItem::allocateProp(const char *name) {
+    size_t len = strlen(name);
+    size_t i = findPropIndex(name, len);
+    Prop *prop;
+
+    if (i < mPropCount) {
+        prop = &mProps[i];
+    } else {
+        if (i == mPropSize) {
+            growProps();
+            // XXX: verify success
+        }
+        i = mPropCount++;
+        prop = &mProps[i];
+        prop->setName(name, len);
+    }
+
+    return prop;
+}
+
+// set the values
+void MediaAnalyticsItem::setInt32(MediaAnalyticsItem::Attr name, int32_t value) {
+    Prop *prop = allocateProp(name);
+    prop->mType = kTypeInt32;
+    prop->u.int32Value = value;
+}
+
+void MediaAnalyticsItem::setInt64(MediaAnalyticsItem::Attr name, int64_t value) {
+    Prop *prop = allocateProp(name);
+    prop->mType = kTypeInt64;
+    prop->u.int64Value = value;
+}
+
+void MediaAnalyticsItem::setDouble(MediaAnalyticsItem::Attr name, double value) {
+    Prop *prop = allocateProp(name);
+    prop->mType = kTypeDouble;
+    prop->u.doubleValue = value;
+}
+
+void MediaAnalyticsItem::setCString(MediaAnalyticsItem::Attr name, const char *value) {
+
+    Prop *prop = allocateProp(name);
+    // any old value will be gone
+    prop->mType = kTypeCString;
+    prop->u.CStringValue = strdup(value);
+}
+
+void MediaAnalyticsItem::setRate(MediaAnalyticsItem::Attr name, int64_t count, int64_t duration) {
+    Prop *prop = allocateProp(name);
+    prop->mType = kTypeRate;
+    prop->u.rate.count = count;
+    prop->u.rate.duration = duration;
+}
+
+
+// find/add/set fused into a single operation
+void MediaAnalyticsItem::addInt32(MediaAnalyticsItem::Attr name, int32_t value) {
+    Prop *prop = allocateProp(name);
+    switch (prop->mType) {
+        case kTypeInt32:
+            prop->u.int32Value += value;
+            break;
+        default:
+            clearPropValue(prop);
+            prop->mType = kTypeInt32;
+            prop->u.int32Value = value;
+            break;
+    }
+}
+
+void MediaAnalyticsItem::addInt64(MediaAnalyticsItem::Attr name, int64_t value) {
+    Prop *prop = allocateProp(name);
+    switch (prop->mType) {
+        case kTypeInt64:
+            prop->u.int64Value += value;
+            break;
+        default:
+            clearPropValue(prop);
+            prop->mType = kTypeInt64;
+            prop->u.int64Value = value;
+            break;
+    }
+}
+
+void MediaAnalyticsItem::addRate(MediaAnalyticsItem::Attr name, int64_t count, int64_t duration) {
+    Prop *prop = allocateProp(name);
+    switch (prop->mType) {
+        case kTypeRate:
+            prop->u.rate.count += count;
+            prop->u.rate.duration += duration;
+            break;
+        default:
+            clearPropValue(prop);
+            prop->mType = kTypeRate;
+            prop->u.rate.count = count;
+            prop->u.rate.duration = duration;
+            break;
+    }
+}
+
+void MediaAnalyticsItem::addDouble(MediaAnalyticsItem::Attr name, double value) {
+    Prop *prop = allocateProp(name);
+    switch (prop->mType) {
+        case kTypeDouble:
+            prop->u.doubleValue += value;
+            break;
+        default:
+            clearPropValue(prop);
+            prop->mType = kTypeDouble;
+            prop->u.doubleValue = value;
+            break;
+    }
+}
+
+// find & extract values
+bool MediaAnalyticsItem::getInt32(MediaAnalyticsItem::Attr name, int32_t *value) {
+    Prop *prop = findProp(name);
+    if (prop == NULL || prop->mType != kTypeInt32) {
+        return false;
+    }
+    if (value != NULL) {
+        *value = prop->u.int32Value;
+    }
+    return true;
+}
+
+bool MediaAnalyticsItem::getInt64(MediaAnalyticsItem::Attr name, int64_t *value) {
+    Prop *prop = findProp(name);
+    if (prop == NULL || prop->mType != kTypeInt64) {
+        return false;
+    }
+    if (value != NULL) {
+        *value = prop->u.int64Value;
+    }
+    return true;
+}
+
+bool MediaAnalyticsItem::getRate(MediaAnalyticsItem::Attr name, int64_t *count, int64_t *duration, double *rate) {
+    Prop *prop = findProp(name);
+    if (prop == NULL || prop->mType != kTypeRate) {
+        return false;
+    }
+    if (count != NULL) {
+        *count = prop->u.rate.count;
+    }
+    if (duration != NULL) {
+        *duration = prop->u.rate.duration;
+    }
+    if (rate != NULL) {
+        double r = 0.0;
+        if (prop->u.rate.duration != 0) {
+            r = prop->u.rate.count / (double) prop->u.rate.duration;
+        }
+        *rate = r;
+    }
+    return true;
+}
+
+bool MediaAnalyticsItem::getDouble(MediaAnalyticsItem::Attr name, double *value) {
+    Prop *prop = findProp(name);
+    if (prop == NULL || prop->mType != kTypeDouble) {
+        return false;
+    }
+    if (value != NULL) {
+        *value = prop->u.doubleValue;
+    }
+    return true;
+}
+
+// caller responsible for the returned string
+bool MediaAnalyticsItem::getCString(MediaAnalyticsItem::Attr name, char **value) {
+    Prop *prop = findProp(name);
+    if (prop == NULL || prop->mType != kTypeDouble) {
+        return false;
+    }
+    if (value != NULL) {
+        *value = strdup(prop->u.CStringValue);
+    }
+    return true;
+}
+
+// remove indicated keys and their values
+// return value is # keys removed
+int32_t MediaAnalyticsItem::filter(int n, MediaAnalyticsItem::Attr attrs[]) {
+    int zapped = 0;
+    if (attrs == NULL || n <= 0) {
+        return -1;
+    }
+    for (ssize_t i = 0 ; i < n ;  i++) {
+        const char *name = attrs[i];
+        size_t len = strlen(name);
+        size_t j = findPropIndex(name, len);
+        if (j >= mPropCount) {
+            // not there
+            continue;
+        } else if (j+1 == mPropCount) {
+            // last one, shorten
+            zapped++;
+            clearProp(&mProps[j]);
+            mPropCount--;
+        } else {
+            // in the middle, bring last one down and shorten
+            zapped++;
+            clearProp(&mProps[j]);
+            mProps[j] = mProps[mPropCount-1];
+            mPropCount--;
+        }
+    }
+    return zapped;
+}
+
+// remove any keys NOT in the provided list
+// return value is # keys removed
+int32_t MediaAnalyticsItem::filterNot(int n, MediaAnalyticsItem::Attr attrs[]) {
+    int zapped = 0;
+    if (attrs == NULL || n <= 0) {
+        return -1;
+    }
+    for (ssize_t i = mPropCount-1 ; i >=0 ;  i--) {
+        Prop *prop = &mProps[i];
+        for (ssize_t j = 0; j < n ; j++) {
+            if (strcmp(prop->mName, attrs[j]) == 0) {
+                clearProp(prop);
+                zapped++;
+                if (i != (ssize_t)(mPropCount-1)) {
+                    *prop = mProps[mPropCount-1];
+                }
+                initProp(&mProps[mPropCount-1]);
+                mPropCount--;
+                break;
+            }
+        }
+    }
+    return zapped;
+}
+
+// remove a single key
+// return value is 0 (not found) or 1 (found and removed)
+int32_t MediaAnalyticsItem::filter(MediaAnalyticsItem::Attr name) {
+    return filter(1, &name);
+}
+
+// handle individual items/properties stored within the class
+//
+
+void MediaAnalyticsItem::initProp(Prop *prop) {
+    if (prop != NULL) {
+        prop->mName = NULL;
+        prop->mNameLen = 0;
+
+        prop->mType = kTypeNone;
+    }
+}
+
+void MediaAnalyticsItem::clearProp(Prop *prop)
+{
+    if (prop != NULL) {
+        if (prop->mName != NULL) {
+            free((void *)prop->mName);
+            prop->mName = NULL;
+            prop->mNameLen = 0;
+        }
+
+        clearPropValue(prop);
+    }
+}
+
+void MediaAnalyticsItem::clearPropValue(Prop *prop)
+{
+    if (prop != NULL) {
+        if (prop->mType == kTypeCString && prop->u.CStringValue != NULL) {
+            free(prop->u.CStringValue);
+            prop->u.CStringValue = NULL;
+        }
+        prop->mType = kTypeNone;
+    }
+}
+
+void MediaAnalyticsItem::copyProp(Prop *dst, const Prop *src)
+{
+    // get rid of any pointers in the dst
+    clearProp(dst);
+
+    *dst = *src;
+
+    // fix any pointers that we blindly copied, so we have our own copies
+    if (dst->mName) {
+        void *p =  malloc(dst->mNameLen + 1);
+        memcpy (p, src->mName, dst->mNameLen + 1);
+        dst->mName = (const char *) p;
+    }
+    if (dst->mType == kTypeCString) {
+        dst->u.CStringValue = strdup(src->u.CStringValue);
+    }
+}
+
+void MediaAnalyticsItem::growProps(int increment)
+{
+    if (increment <= 0) {
+        increment = kGrowProps;
+    }
+    int nsize = mPropSize + increment;
+    Prop *ni = (Prop *)realloc(mProps, sizeof(Prop) * nsize);
+
+    if (ni != NULL) {
+        for (int i = mPropSize; i < nsize; i++) {
+            initProp(&ni[i]);
+        }
+        mProps = ni;
+        mPropSize = nsize;
+    }
+}
+
+// Parcel / serialize things for binder calls
+//
+
+int32_t MediaAnalyticsItem::readFromParcel(const Parcel& data) {
+    // into 'this' object
+    // .. we make a copy of the string to put away.
+    mKey = data.readCString();
+    mSessionID = data.readInt64();
+    mFinalized = data.readInt32();
+    mTimestamp = data.readInt64();
+
+    int count = data.readInt32();
+    for (int i = 0; i < count ; i++) {
+            MediaAnalyticsItem::Attr attr = data.readCString();
+            int32_t ztype = data.readInt32();
+                switch (ztype) {
+                    case MediaAnalyticsItem::kTypeInt32:
+                            setInt32(attr, data.readInt32());
+                            break;
+                    case MediaAnalyticsItem::kTypeInt64:
+                            setInt64(attr, data.readInt64());
+                            break;
+                    case MediaAnalyticsItem::kTypeDouble:
+                            setDouble(attr, data.readDouble());
+                            break;
+                    case MediaAnalyticsItem::kTypeCString:
+                            setCString(attr, data.readCString());
+                            break;
+                    case MediaAnalyticsItem::kTypeRate:
+                            {
+                                int64_t count = data.readInt64();
+                                int64_t duration = data.readInt64();
+                                setRate(attr, count, duration);
+                            }
+                            break;
+                    default:
+                            ALOGE("reading bad item type: %d, idx %d",
+                                  ztype, i);
+                            return -1;
+                }
+    }
+
+    return 0;
+}
+
+int32_t MediaAnalyticsItem::writeToParcel(Parcel *data) {
+    if (data == NULL) return -1;
+
+
+    data->writeCString(mKey.c_str());
+    data->writeInt64(mSessionID);
+    data->writeInt32(mFinalized);
+    data->writeInt64(mTimestamp);
+
+    // set of items
+    int count = mPropCount;
+    data->writeInt32(count);
+    for (int i = 0 ; i < count; i++ ) {
+            Prop *prop = &mProps[i];
+            data->writeCString(prop->mName);
+            data->writeInt32(prop->mType);
+            switch (prop->mType) {
+                case MediaAnalyticsItem::kTypeInt32:
+                        data->writeInt32(prop->u.int32Value);
+                        break;
+                case MediaAnalyticsItem::kTypeInt64:
+                        data->writeInt64(prop->u.int64Value);
+                        break;
+                case MediaAnalyticsItem::kTypeDouble:
+                        data->writeDouble(prop->u.doubleValue);
+                        break;
+                case MediaAnalyticsItem::kTypeRate:
+                        data->writeInt64(prop->u.rate.count);
+                        data->writeInt64(prop->u.rate.duration);
+                        break;
+                case MediaAnalyticsItem::kTypeCString:
+                        data->writeCString(prop->u.CStringValue);
+                        break;
+                default:
+                        ALOGE("found bad Prop type: %d, idx %d, name %s",
+                              prop->mType, i, prop->mName);
+                        break;
+            }
+    }
+
+    return 0;
+}
+
+
+AString MediaAnalyticsItem::toString() {
+
+    AString result = "(";
+    char buffer[512];
+
+    // same order as we spill into the parcel, although not required
+    // key+session are our primary matching criteria
+    //RBE ALOGD("mKey.c_str");
+    result.append(mKey.c_str());
+    //RBE ALOGD("post-mKey.c_str");
+    result.append(":");
+    snprintf(buffer, sizeof(buffer), "%" PRId64 ":", mSessionID);
+    result.append(buffer);
+
+    // we need these internally, but don't want to upload them
+    snprintf(buffer, sizeof(buffer), "%d:%d", mUid, mPid);
+    result.append(buffer);
+
+    snprintf(buffer, sizeof(buffer), "%d:", mFinalized);
+    result.append(buffer);
+    snprintf(buffer, sizeof(buffer), "%" PRId64 ":", mTimestamp);
+    result.append(buffer);
+
+    // set of items
+    int count = mPropCount;
+    snprintf(buffer, sizeof(buffer), "%d:", count);
+    result.append(buffer);
+    for (int i = 0 ; i < count; i++ ) {
+            Prop *prop = &mProps[i];
+            switch (prop->mType) {
+                case MediaAnalyticsItem::kTypeInt32:
+                        snprintf(buffer,sizeof(buffer),
+                        "%s=%d:", prop->mName, prop->u.int32Value);
+                        break;
+                case MediaAnalyticsItem::kTypeInt64:
+                        snprintf(buffer,sizeof(buffer),
+                        "%s=%" PRId64 ":", prop->mName, prop->u.int64Value);
+                        break;
+                case MediaAnalyticsItem::kTypeDouble:
+                        snprintf(buffer,sizeof(buffer),
+                        "%s=%e:", prop->mName, prop->u.doubleValue);
+                        break;
+                case MediaAnalyticsItem::kTypeRate:
+                        snprintf(buffer,sizeof(buffer),
+                        "%s=%" PRId64 "/%" PRId64 ":", prop->mName,
+                        prop->u.rate.count, prop->u.rate.duration);
+                        break;
+                case MediaAnalyticsItem::kTypeCString:
+                        snprintf(buffer,sizeof(buffer), "%s=", prop->mName);
+                        result.append(buffer);
+                        // XXX: sanitize string for ':' '='
+                        result.append(prop->u.CStringValue);
+                        buffer[0] = ':';
+                        buffer[1] = '\0';
+                        break;
+                default:
+                        ALOGE("to_String bad item type: %d for %s",
+                              prop->mType, prop->mName);
+                        break;
+            }
+            result.append(buffer);
+    }
+
+    result.append(")");
+
+    return result;
+}
+
+// for the lazy, we offer methods that finds the service and
+// calls the appropriate daemon
+bool MediaAnalyticsItem::selfrecord() {
+    return selfrecord(false);
+}
+
+bool MediaAnalyticsItem::selfrecord(bool forcenew) {
+
+    if (DEBUG_API) {
+        AString p = this->toString();
+        ALOGD("selfrecord of: %s [forcenew=%d]", p.c_str(), forcenew);
+    }
+
+    sp<IMediaAnalyticsService> svc = getInstance();
+
+    if (svc != NULL) {
+        svc->submit(this, forcenew);
+        return true;
+    } else {
+        AString p = this->toString();
+        ALOGD("Unable to record: %s [forcenew=%d]", p.c_str(), forcenew);
+        return false;
+    }
+}
+
+// get a connection we can reuse for most of our lifetime
+// static
+sp<IMediaAnalyticsService> MediaAnalyticsItem::sAnalyticsService;
+static Mutex sInitMutex;
+
+//static
+bool MediaAnalyticsItem::isEnabled() {
+    int enabled = property_get_int32(MediaAnalyticsItem::EnabledProperty, -1);
+
+    if (enabled == -1) {
+        enabled = property_get_int32(MediaAnalyticsItem::EnabledPropertyPersist, -1);
+    }
+    if (enabled == -1) {
+        enabled = MediaAnalyticsItem::EnabledProperty_default;
+    }
+    if (enabled <= 0) {
+        return false;
+    }
+    return true;
+}
+
+//static
+sp<IMediaAnalyticsService> MediaAnalyticsItem::getInstance() {
+    static const char *servicename = "media.metrics";
+    static int tries_remaining = SVC_TRIES;
+    int enabled = isEnabled();
+
+    if (enabled == false) {
+        if (DEBUG_SERVICEACCESS) {
+                ALOGD("disabled");
+        }
+        return NULL;
+    }
+
+    {
+        Mutex::Autolock _l(sInitMutex);
+        const char *badness = "";
+
+        // think of tries_remaining as telling us whether service==NULL because
+        // (1) we haven't tried to initialize it yet
+        // (2) we've tried to initialize it, but failed.
+        if (sAnalyticsService == NULL && tries_remaining > 0) {
+            sp<IServiceManager> sm = defaultServiceManager();
+            if (sm != NULL) {
+                sp<IBinder> binder = sm->getService(String16(servicename));
+                if (binder != NULL) {
+                    sAnalyticsService = interface_cast<IMediaAnalyticsService>(binder);
+                } else {
+                    badness = "did not find service";
+                }
+            } else {
+                badness = "No Service Manager access";
+            }
+
+            if (sAnalyticsService == NULL) {
+                if (tries_remaining > 0) {
+                    tries_remaining--;
+                }
+                if (DEBUG_SERVICEACCESS) {
+                    ALOGD("Unable to bind to service %s: %s", servicename, badness);
+                }
+            }
+        }
+
+        return sAnalyticsService;
+    }
+}
+
+
+// merge the info from 'incoming' into this record.
+// we finish with a union of this+incoming and special handling for collisions
+bool MediaAnalyticsItem::merge(MediaAnalyticsItem *incoming) {
+
+    // if I don't have key or session id, take them from incoming
+    // 'this' should never be missing both of them...
+    if (mKey.empty()) {
+        mKey = incoming->mKey;
+    } else if (mSessionID == 0) {
+        mSessionID = incoming->mSessionID;
+    }
+
+    // we always take the more recent 'finalized' value
+    setFinalized(incoming->getFinalized());
+
+    // for each attribute from 'incoming', resolve appropriately
+    int nattr = incoming->mPropCount;
+    for (int i = 0 ; i < nattr; i++ ) {
+        Prop *iprop = &incoming->mProps[i];
+        Prop *oprop = findProp(iprop->mName);
+        const char *p = iprop->mName;
+        size_t len = strlen(p);
+        char semantic = p[len-1];
+
+        if (oprop == NULL) {
+            // no oprop, so we insert the new one
+            oprop = allocateProp(p);
+            copyProp(oprop, iprop);
+        } else {
+            // merge iprop into oprop
+            switch (semantic) {
+                case '<':       // first  aka keep old)
+                    /* nop */
+                    break;
+
+                default:        // default is 'last'
+                case '>':       // last (aka keep new)
+                    copyProp(oprop, iprop);
+                    break;
+
+                case '+':       /* sum */
+                    // XXX validate numeric types, sum in place
+                    break;
+
+            }
+        }
+    }
+
+    // not sure when we'd return false...
+    return true;
+}
+
+} // namespace android
+
diff --git a/media/libmedia/MediaCodecBuffer.cpp b/media/libmedia/MediaCodecBuffer.cpp
new file mode 100644
index 0000000..59d6164
--- /dev/null
+++ b/media/libmedia/MediaCodecBuffer.cpp
@@ -0,0 +1,88 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "MediaCodecBuffer"
+#include <utils/Log.h>
+
+#include <media/MediaCodecBuffer.h>
+#include <media/stagefright/foundation/ABuffer.h>
+#include <media/stagefright/foundation/AMessage.h>
+#include <media/stagefright/foundation/MediaBufferBase.h>
+
+namespace android {
+
+MediaCodecBuffer::MediaCodecBuffer(const sp<AMessage> &format, const sp<ABuffer> &buffer)
+    : mMeta(new AMessage),
+      mFormat(format),
+      mBuffer(buffer),
+      mMediaBufferBase(nullptr) {
+}
+
+// ABuffer-like interface
+uint8_t *MediaCodecBuffer::base() {
+    return mBuffer->base();
+}
+
+uint8_t *MediaCodecBuffer::data() {
+    return mBuffer->data();
+}
+
+size_t MediaCodecBuffer::capacity() const {
+    return mBuffer->capacity();
+}
+
+size_t MediaCodecBuffer::size() const {
+    return mBuffer->size();
+}
+
+size_t MediaCodecBuffer::offset() const {
+    return mBuffer->offset();
+}
+
+status_t MediaCodecBuffer::setRange(size_t offset, size_t size) {
+    mBuffer->setRange(offset, size);
+    return OK;
+}
+
+MediaBufferBase *MediaCodecBuffer::getMediaBufferBase() {
+    if (mMediaBufferBase != NULL) {
+        mMediaBufferBase->add_ref();
+    }
+    return mMediaBufferBase;
+}
+
+void MediaCodecBuffer::setMediaBufferBase(MediaBufferBase *mediaBuffer) {
+    if (mMediaBufferBase != NULL) {
+        mMediaBufferBase->release();
+    }
+    mMediaBufferBase = mediaBuffer;
+}
+
+sp<AMessage> MediaCodecBuffer::meta() {
+    return mMeta;
+}
+
+sp<AMessage> MediaCodecBuffer::format() {
+    return mFormat;
+}
+
+void MediaCodecBuffer::setFormat(const sp<AMessage> &format) {
+    mMeta->clear();
+    mFormat = format;
+}
+
+}  // namespace android
diff --git a/media/libmedia/MediaCodecInfo.cpp b/media/libmedia/MediaCodecInfo.cpp
index 1b3b3eb..62a7bdf 100644
--- a/media/libmedia/MediaCodecInfo.cpp
+++ b/media/libmedia/MediaCodecInfo.cpp
@@ -121,9 +121,11 @@
 }
 
 bool MediaCodecInfo::hasQuirk(const char *name) const {
-    for (size_t ix = 0; ix < mQuirks.size(); ix++) {
-        if (mQuirks.itemAt(ix).equalsIgnoreCase(name)) {
-            return true;
+    if (name) {
+        for (size_t ix = 0; ix < mQuirks.size(); ix++) {
+            if (mQuirks.itemAt(ix).equalsIgnoreCase(name)) {
+                return true;
+            }
         }
     }
     return false;
@@ -190,9 +192,11 @@
 }
 
 ssize_t MediaCodecInfo::getCapabilityIndex(const char *mime) const {
-    for (size_t ix = 0; ix < mCaps.size(); ix++) {
-        if (mCaps.keyAt(ix).equalsIgnoreCase(mime)) {
-            return ix;
+    if (mime) {
+        for (size_t ix = 0; ix < mCaps.size(); ix++) {
+            if (mCaps.keyAt(ix).equalsIgnoreCase(mime)) {
+                return ix;
+            }
         }
     }
     return -1;
diff --git a/media/libmedia/MediaDefs.cpp b/media/libmedia/MediaDefs.cpp
new file mode 100644
index 0000000..544a6ae
--- /dev/null
+++ b/media/libmedia/MediaDefs.cpp
@@ -0,0 +1,69 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <media/MediaDefs.h>
+
+namespace android {
+
+const char *MEDIA_MIMETYPE_IMAGE_JPEG = "image/jpeg";
+
+const char *MEDIA_MIMETYPE_VIDEO_VP8 = "video/x-vnd.on2.vp8";
+const char *MEDIA_MIMETYPE_VIDEO_VP9 = "video/x-vnd.on2.vp9";
+const char *MEDIA_MIMETYPE_VIDEO_AVC = "video/avc";
+const char *MEDIA_MIMETYPE_VIDEO_HEVC = "video/hevc";
+const char *MEDIA_MIMETYPE_VIDEO_MPEG4 = "video/mp4v-es";
+const char *MEDIA_MIMETYPE_VIDEO_H263 = "video/3gpp";
+const char *MEDIA_MIMETYPE_VIDEO_MPEG2 = "video/mpeg2";
+const char *MEDIA_MIMETYPE_VIDEO_RAW = "video/raw";
+const char *MEDIA_MIMETYPE_VIDEO_DOLBY_VISION = "video/dolby-vision";
+const char *MEDIA_MIMETYPE_VIDEO_SCRAMBLED = "video/scrambled";
+
+const char *MEDIA_MIMETYPE_AUDIO_AMR_NB = "audio/3gpp";
+const char *MEDIA_MIMETYPE_AUDIO_AMR_WB = "audio/amr-wb";
+const char *MEDIA_MIMETYPE_AUDIO_MPEG = "audio/mpeg";
+const char *MEDIA_MIMETYPE_AUDIO_MPEG_LAYER_I = "audio/mpeg-L1";
+const char *MEDIA_MIMETYPE_AUDIO_MPEG_LAYER_II = "audio/mpeg-L2";
+const char *MEDIA_MIMETYPE_AUDIO_MIDI = "audio/midi";
+const char *MEDIA_MIMETYPE_AUDIO_AAC = "audio/mp4a-latm";
+const char *MEDIA_MIMETYPE_AUDIO_QCELP = "audio/qcelp";
+const char *MEDIA_MIMETYPE_AUDIO_VORBIS = "audio/vorbis";
+const char *MEDIA_MIMETYPE_AUDIO_OPUS = "audio/opus";
+const char *MEDIA_MIMETYPE_AUDIO_G711_ALAW = "audio/g711-alaw";
+const char *MEDIA_MIMETYPE_AUDIO_G711_MLAW = "audio/g711-mlaw";
+const char *MEDIA_MIMETYPE_AUDIO_RAW = "audio/raw";
+const char *MEDIA_MIMETYPE_AUDIO_FLAC = "audio/flac";
+const char *MEDIA_MIMETYPE_AUDIO_AAC_ADTS = "audio/aac-adts";
+const char *MEDIA_MIMETYPE_AUDIO_MSGSM = "audio/gsm";
+const char *MEDIA_MIMETYPE_AUDIO_AC3 = "audio/ac3";
+const char *MEDIA_MIMETYPE_AUDIO_EAC3 = "audio/eac3";
+const char *MEDIA_MIMETYPE_AUDIO_SCRAMBLED = "audio/scrambled";
+
+const char *MEDIA_MIMETYPE_CONTAINER_MPEG4 = "video/mp4";
+const char *MEDIA_MIMETYPE_CONTAINER_WAV = "audio/x-wav";
+const char *MEDIA_MIMETYPE_CONTAINER_OGG = "application/ogg";
+const char *MEDIA_MIMETYPE_CONTAINER_MATROSKA = "video/x-matroska";
+const char *MEDIA_MIMETYPE_CONTAINER_MPEG2TS = "video/mp2ts";
+const char *MEDIA_MIMETYPE_CONTAINER_AVI = "video/avi";
+const char *MEDIA_MIMETYPE_CONTAINER_MPEG2PS = "video/mp2p";
+
+const char *MEDIA_MIMETYPE_TEXT_3GPP = "text/3gpp-tt";
+const char *MEDIA_MIMETYPE_TEXT_SUBRIP = "application/x-subrip";
+const char *MEDIA_MIMETYPE_TEXT_VTT = "text/vtt";
+const char *MEDIA_MIMETYPE_TEXT_CEA_608 = "text/cea-608";
+const char *MEDIA_MIMETYPE_TEXT_CEA_708 = "text/cea-708";
+const char *MEDIA_MIMETYPE_DATA_TIMED_ID3 = "application/x-id3v4";
+
+}  // namespace android
diff --git a/media/libmedia/MidiDeviceInfo.cpp b/media/libmedia/MidiDeviceInfo.cpp
new file mode 100644
index 0000000..02efc5f
--- /dev/null
+++ b/media/libmedia/MidiDeviceInfo.cpp
@@ -0,0 +1,138 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "MidiDeviceInfo"
+
+#include "MidiDeviceInfo.h"
+
+#include <binder/Parcel.h>
+#include <log/log.h>
+#include <utils/Errors.h>
+#include <utils/String16.h>
+
+namespace android {
+namespace media {
+namespace midi {
+
+// The constant values need to be kept in sync with MidiDeviceInfo.java.
+// static
+const char* const MidiDeviceInfo::PROPERTY_NAME = "name";
+const char* const MidiDeviceInfo::PROPERTY_MANUFACTURER = "manufacturer";
+const char* const MidiDeviceInfo::PROPERTY_PRODUCT = "product";
+const char* const MidiDeviceInfo::PROPERTY_VERSION = "version";
+const char* const MidiDeviceInfo::PROPERTY_SERIAL_NUMBER = "serial_number";
+const char* const MidiDeviceInfo::PROPERTY_ALSA_CARD = "alsa_card";
+const char* const MidiDeviceInfo::PROPERTY_ALSA_DEVICE = "alsa_device";
+
+String16 MidiDeviceInfo::getProperty(const char* propertyName) {
+    String16 value;
+    if (mProperties.getString(String16(propertyName), &value)) {
+        return value;
+    } else {
+        return String16();
+    }
+}
+
+#define RETURN_IF_FAILED(calledOnce)                                     \
+    {                                                                    \
+        status_t returnStatus = calledOnce;                              \
+        if (returnStatus) {                                              \
+            ALOGE("Failed at %s:%d (%s)", __FILE__, __LINE__, __func__); \
+            return returnStatus;                                         \
+         }                                                               \
+    }
+
+status_t MidiDeviceInfo::writeToParcel(Parcel* parcel) const {
+    // Needs to be kept in sync with code in MidiDeviceInfo.java
+    RETURN_IF_FAILED(parcel->writeInt32(mType));
+    RETURN_IF_FAILED(parcel->writeInt32(mId));
+    RETURN_IF_FAILED(parcel->writeInt32((int32_t)mInputPortNames.size()));
+    RETURN_IF_FAILED(parcel->writeInt32((int32_t)mOutputPortNames.size()));
+    RETURN_IF_FAILED(writeStringVector(parcel, mInputPortNames));
+    RETURN_IF_FAILED(writeStringVector(parcel, mOutputPortNames));
+    RETURN_IF_FAILED(parcel->writeInt32(mIsPrivate ? 1 : 0));
+    RETURN_IF_FAILED(mProperties.writeToParcel(parcel));
+    // This corresponds to "extra" properties written by Java code
+    RETURN_IF_FAILED(mProperties.writeToParcel(parcel));
+    return OK;
+}
+
+status_t MidiDeviceInfo::readFromParcel(const Parcel* parcel) {
+    // Needs to be kept in sync with code in MidiDeviceInfo.java
+    RETURN_IF_FAILED(parcel->readInt32(&mType));
+    RETURN_IF_FAILED(parcel->readInt32(&mId));
+    int32_t inputPortCount;
+    RETURN_IF_FAILED(parcel->readInt32(&inputPortCount));
+    int32_t outputPortCount;
+    RETURN_IF_FAILED(parcel->readInt32(&outputPortCount));
+    RETURN_IF_FAILED(readStringVector(parcel, &mInputPortNames, inputPortCount));
+    RETURN_IF_FAILED(readStringVector(parcel, &mOutputPortNames, outputPortCount));
+    int32_t isPrivate;
+    RETURN_IF_FAILED(parcel->readInt32(&isPrivate));
+    mIsPrivate = isPrivate == 1;
+    RETURN_IF_FAILED(mProperties.readFromParcel(parcel));
+    // Ignore "extra" properties as they may contain Java Parcelables
+    return OK;
+}
+
+status_t MidiDeviceInfo::readStringVector(
+        const Parcel* parcel, Vector<String16> *vectorPtr, size_t defaultLength) {
+    std::unique_ptr<std::vector<std::unique_ptr<String16>>> v;
+    status_t result = parcel->readString16Vector(&v);
+    if (result != OK) return result;
+    vectorPtr->clear();
+    if (v.get() != nullptr) {
+        for (const auto& iter : *v) {
+            if (iter.get() != nullptr) {
+                vectorPtr->push_back(*iter);
+            } else {
+                vectorPtr->push_back(String16());
+            }
+        }
+    } else {
+        vectorPtr->resize(defaultLength);
+    }
+    return OK;
+}
+
+status_t MidiDeviceInfo::writeStringVector(Parcel* parcel, const Vector<String16>& vector) const {
+    std::vector<String16> v;
+    for (size_t i = 0; i < vector.size(); ++i) {
+        v.push_back(vector[i]);
+    }
+    return parcel->writeString16Vector(v);
+}
+
+// Vector does not define operator==
+static inline bool areVectorsEqual(const Vector<String16>& lhs, const Vector<String16>& rhs) {
+    if (lhs.size() != rhs.size()) return false;
+    for (size_t i = 0; i < lhs.size(); ++i) {
+        if (lhs[i] != rhs[i]) return false;
+    }
+    return true;
+}
+
+bool operator==(const MidiDeviceInfo& lhs, const MidiDeviceInfo& rhs) {
+    return (lhs.mType == rhs.mType && lhs.mId == rhs.mId &&
+            areVectorsEqual(lhs.mInputPortNames, rhs.mInputPortNames) &&
+            areVectorsEqual(lhs.mOutputPortNames, rhs.mOutputPortNames) &&
+            lhs.mProperties == rhs.mProperties &&
+            lhs.mIsPrivate == rhs.mIsPrivate);
+}
+
+}  // namespace midi
+}  // namespace media
+}  // namespace android
diff --git a/media/libmedia/OMXBuffer.cpp b/media/libmedia/OMXBuffer.cpp
new file mode 100644
index 0000000..6d54a13
--- /dev/null
+++ b/media/libmedia/OMXBuffer.cpp
@@ -0,0 +1,190 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "OMXBuffer"
+
+#include <media/stagefright/foundation/ADebug.h>
+#include <media/MediaCodecBuffer.h>
+#include <media/OMXBuffer.h>
+#include <binder/IMemory.h>
+#include <binder/Parcel.h>
+#include <ui/GraphicBuffer.h>
+#include <utils/NativeHandle.h>
+
+namespace android {
+
+//static
+OMXBuffer OMXBuffer::sPreset(static_cast<sp<MediaCodecBuffer> >(NULL));
+
+OMXBuffer::OMXBuffer()
+    : mBufferType(kBufferTypeInvalid) {
+}
+
+OMXBuffer::OMXBuffer(const sp<MediaCodecBuffer>& codecBuffer)
+    : mBufferType(kBufferTypePreset),
+      mRangeOffset(codecBuffer != NULL ? codecBuffer->offset() : 0),
+      mRangeLength(codecBuffer != NULL ? codecBuffer->size() : 0) {
+}
+
+OMXBuffer::OMXBuffer(OMX_U32 rangeOffset, OMX_U32 rangeLength)
+    : mBufferType(kBufferTypePreset),
+      mRangeOffset(rangeOffset),
+      mRangeLength(rangeLength) {
+}
+
+OMXBuffer::OMXBuffer(const sp<IMemory> &mem)
+    : mBufferType(kBufferTypeSharedMem),
+      mMem(mem) {
+}
+
+OMXBuffer::OMXBuffer(const sp<GraphicBuffer> &gbuf)
+    : mBufferType(kBufferTypeANWBuffer),
+      mGraphicBuffer(gbuf) {
+}
+
+OMXBuffer::OMXBuffer(const sp<NativeHandle> &handle)
+    : mBufferType(kBufferTypeNativeHandle),
+      mNativeHandle(handle) {
+}
+
+OMXBuffer::OMXBuffer(const hidl_memory &hidlMemory)
+    : mBufferType(kBufferTypeHidlMemory),
+      mHidlMemory(hidlMemory) {
+}
+
+OMXBuffer::~OMXBuffer() {
+}
+
+status_t OMXBuffer::writeToParcel(Parcel *parcel) const {
+    CHECK(mBufferType != kBufferTypeHidlMemory);
+    parcel->writeInt32(mBufferType);
+
+    switch(mBufferType) {
+        case kBufferTypePreset:
+        {
+            status_t err = parcel->writeUint32(mRangeOffset);
+            if (err != OK) {
+                return err;
+            }
+            return parcel->writeUint32(mRangeLength);
+        }
+
+        case kBufferTypeSharedMem:
+        {
+            return parcel->writeStrongBinder(IInterface::asBinder(mMem));
+        }
+
+        case kBufferTypeANWBuffer:
+        {
+            if (mGraphicBuffer == NULL) {
+                return parcel->writeBool(false);
+            }
+            status_t err = parcel->writeBool(true);
+            if (err != OK) {
+                return err;
+            }
+            return parcel->write(*mGraphicBuffer);
+        }
+
+        case kBufferTypeNativeHandle:
+        {
+            return parcel->writeNativeHandle(mNativeHandle->handle());
+        }
+
+        default:
+            return BAD_VALUE;
+    }
+    return BAD_VALUE;
+}
+
+status_t OMXBuffer::readFromParcel(const Parcel *parcel) {
+    BufferType bufferType = (BufferType) parcel->readInt32();
+    CHECK(bufferType != kBufferTypeHidlMemory);
+
+    switch(bufferType) {
+        case kBufferTypePreset:
+        {
+            status_t err = parcel->readUint32(&mRangeOffset);
+            if (err != OK) {
+                return err;
+            }
+            err = parcel->readUint32(&mRangeLength);
+            if (err != OK) {
+                return err;
+            }
+            break;
+        }
+
+        case kBufferTypeSharedMem:
+        {
+            mMem = interface_cast<IMemory>(parcel->readStrongBinder());
+            break;
+        }
+
+        case kBufferTypeANWBuffer:
+        {
+            bool notNull;
+            status_t err = parcel->readBool(&notNull);
+            if (err != OK) {
+                return err;
+            }
+            if (notNull) {
+                sp<GraphicBuffer> buffer = new GraphicBuffer();
+                status_t err = parcel->read(*buffer);
+                if (err != OK) {
+                    return err;
+                }
+                mGraphicBuffer = buffer;
+            } else {
+                mGraphicBuffer = nullptr;
+            }
+            break;
+        }
+
+        case kBufferTypeNativeHandle:
+        {
+            sp<NativeHandle> handle = NativeHandle::create(
+                    parcel->readNativeHandle(), true /* ownsHandle */);
+
+            mNativeHandle = handle;
+            break;
+        }
+
+        default:
+            return BAD_VALUE;
+    }
+
+    mBufferType = bufferType;
+    return OK;
+}
+
+OMXBuffer& OMXBuffer::operator=(OMXBuffer&& source) {
+    mBufferType = std::move(source.mBufferType);
+    mRangeOffset = std::move(source.mRangeOffset);
+    mRangeLength = std::move(source.mRangeLength);
+    mMem = std::move(source.mMem);
+    mGraphicBuffer = std::move(source.mGraphicBuffer);
+    mNativeHandle = std::move(source.mNativeHandle);
+    mHidlMemory = std::move(source.mHidlMemory);
+    return *this;
+}
+
+} // namespace android
+
+
+
+
diff --git a/media/libmedia/TypeConverter.cpp b/media/libmedia/TypeConverter.cpp
new file mode 100644
index 0000000..bead69a
--- /dev/null
+++ b/media/libmedia/TypeConverter.cpp
@@ -0,0 +1,409 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <media/TypeConverter.h>
+
+namespace android {
+
+#define MAKE_STRING_FROM_ENUM(string) { #string, string }
+#define TERMINATOR { .literal = nullptr }
+
+template <>
+const OutputDeviceConverter::Table OutputDeviceConverter::mTable[] = {
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_NONE),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_EARPIECE),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_SPEAKER),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_SPEAKER_SAFE),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_WIRED_HEADSET),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_WIRED_HEADPHONE),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_SCO),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_ALL_SCO),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_A2DP),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_ALL_A2DP),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_AUX_DIGITAL),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_HDMI),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_USB_ACCESSORY),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_USB_DEVICE),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_ALL_USB),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_REMOTE_SUBMIX),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_TELEPHONY_TX),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_LINE),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_HDMI_ARC),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_SPDIF),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_FM),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_AUX_LINE),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_IP),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_BUS),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_PROXY),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_DEFAULT),
+    // STUB must be after DEFAULT, so the latter is picked up by toString first.
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_STUB),
+    TERMINATOR
+};
+
+template <>
+const InputDeviceConverter::Table InputDeviceConverter::mTable[] = {
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_NONE),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_COMMUNICATION),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_AMBIENT),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_BUILTIN_MIC),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_ALL_SCO),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_WIRED_HEADSET),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_AUX_DIGITAL),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_HDMI),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_TELEPHONY_RX),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_VOICE_CALL),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_BACK_MIC),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_REMOTE_SUBMIX),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_ANLG_DOCK_HEADSET),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_DGTL_DOCK_HEADSET),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_USB_ACCESSORY),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_USB_DEVICE),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_ALL_USB),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_FM_TUNER),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_TV_TUNER),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_LINE),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_SPDIF),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_BLUETOOTH_A2DP),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_LOOPBACK),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_IP),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_BUS),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_PROXY),
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_DEFAULT),
+    // STUB must be after DEFAULT, so the latter is picked up by toString first.
+    MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_STUB),
+    TERMINATOR
+};
+
+
+template <>
+const OutputFlagConverter::Table OutputFlagConverter::mTable[] = {
+    MAKE_STRING_FROM_ENUM(AUDIO_OUTPUT_FLAG_NONE),
+    MAKE_STRING_FROM_ENUM(AUDIO_OUTPUT_FLAG_DIRECT),
+    MAKE_STRING_FROM_ENUM(AUDIO_OUTPUT_FLAG_PRIMARY),
+    MAKE_STRING_FROM_ENUM(AUDIO_OUTPUT_FLAG_FAST),
+    MAKE_STRING_FROM_ENUM(AUDIO_OUTPUT_FLAG_DEEP_BUFFER),
+    MAKE_STRING_FROM_ENUM(AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD),
+    MAKE_STRING_FROM_ENUM(AUDIO_OUTPUT_FLAG_NON_BLOCKING),
+    MAKE_STRING_FROM_ENUM(AUDIO_OUTPUT_FLAG_HW_AV_SYNC),
+    MAKE_STRING_FROM_ENUM(AUDIO_OUTPUT_FLAG_TTS),
+    MAKE_STRING_FROM_ENUM(AUDIO_OUTPUT_FLAG_RAW),
+    MAKE_STRING_FROM_ENUM(AUDIO_OUTPUT_FLAG_SYNC),
+    MAKE_STRING_FROM_ENUM(AUDIO_OUTPUT_FLAG_IEC958_NONAUDIO),
+    MAKE_STRING_FROM_ENUM(AUDIO_OUTPUT_FLAG_DIRECT_PCM),
+    MAKE_STRING_FROM_ENUM(AUDIO_OUTPUT_FLAG_MMAP_NOIRQ),
+    TERMINATOR
+};
+
+
+template <>
+const InputFlagConverter::Table InputFlagConverter::mTable[] = {
+    MAKE_STRING_FROM_ENUM(AUDIO_INPUT_FLAG_NONE),
+    MAKE_STRING_FROM_ENUM(AUDIO_INPUT_FLAG_FAST),
+    MAKE_STRING_FROM_ENUM(AUDIO_INPUT_FLAG_HW_HOTWORD),
+    MAKE_STRING_FROM_ENUM(AUDIO_INPUT_FLAG_RAW),
+    MAKE_STRING_FROM_ENUM(AUDIO_INPUT_FLAG_SYNC),
+    MAKE_STRING_FROM_ENUM(AUDIO_INPUT_FLAG_MMAP_NOIRQ),
+    TERMINATOR
+};
+
+
+template <>
+const FormatConverter::Table FormatConverter::mTable[] = {
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_PCM_16_BIT),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_PCM_8_BIT),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_PCM_32_BIT),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_PCM_8_24_BIT),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_PCM_FLOAT),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_PCM_24_BIT_PACKED),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_MP3),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AMR_NB),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AMR_WB),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AAC),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AAC_MAIN),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AAC_LC),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AAC_SSR),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AAC_LTP),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AAC_HE_V1),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AAC_SCALABLE),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AAC_ERLC),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AAC_LD),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AAC_HE_V2),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AAC_ELD),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AAC_ADTS_MAIN),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AAC_ADTS_LC),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AAC_ADTS_SSR),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AAC_ADTS_LTP),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AAC_ADTS_HE_V1),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AAC_ADTS_SCALABLE),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AAC_ADTS_ERLC),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AAC_ADTS_LD),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AAC_ADTS_HE_V2),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AAC_ADTS_ELD),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_VORBIS),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_HE_AAC_V1),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_HE_AAC_V2),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_OPUS),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AC3),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_E_AC3),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_DTS),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_DTS_HD),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_IEC61937),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_DOLBY_TRUEHD),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_EVRC),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_EVRCB),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_EVRCWB),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_EVRCNW),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AAC_ADIF),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_WMA),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_WMA_PRO),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AMR_WB_PLUS),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_MP2),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_QCELP),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_DSD),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_FLAC),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_ALAC),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_APE),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AAC_ADTS),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_SBC),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_APTX),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_APTX_HD),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AC4),
+    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_LDAC),
+    TERMINATOR
+};
+
+
+template <>
+const OutputChannelConverter::Table OutputChannelConverter::mTable[] = {
+    MAKE_STRING_FROM_ENUM(AUDIO_CHANNEL_OUT_MONO),
+    MAKE_STRING_FROM_ENUM(AUDIO_CHANNEL_OUT_STEREO),
+    MAKE_STRING_FROM_ENUM(AUDIO_CHANNEL_OUT_2POINT1),
+    MAKE_STRING_FROM_ENUM(AUDIO_CHANNEL_OUT_QUAD),
+    MAKE_STRING_FROM_ENUM(AUDIO_CHANNEL_OUT_SURROUND),
+    MAKE_STRING_FROM_ENUM(AUDIO_CHANNEL_OUT_PENTA),
+    MAKE_STRING_FROM_ENUM(AUDIO_CHANNEL_OUT_5POINT1),
+    MAKE_STRING_FROM_ENUM(AUDIO_CHANNEL_OUT_6POINT1),
+    MAKE_STRING_FROM_ENUM(AUDIO_CHANNEL_OUT_7POINT1),
+    TERMINATOR
+};
+
+
+template <>
+const InputChannelConverter::Table InputChannelConverter::mTable[] = {
+    MAKE_STRING_FROM_ENUM(AUDIO_CHANNEL_IN_MONO),
+    MAKE_STRING_FROM_ENUM(AUDIO_CHANNEL_IN_STEREO),
+    MAKE_STRING_FROM_ENUM(AUDIO_CHANNEL_IN_FRONT_BACK),
+    MAKE_STRING_FROM_ENUM(AUDIO_CHANNEL_IN_6),
+    MAKE_STRING_FROM_ENUM(AUDIO_CHANNEL_IN_VOICE_UPLINK_MONO),
+    MAKE_STRING_FROM_ENUM(AUDIO_CHANNEL_IN_VOICE_DNLINK_MONO),
+    MAKE_STRING_FROM_ENUM(AUDIO_CHANNEL_IN_VOICE_CALL_MONO),
+    TERMINATOR
+};
+
+template <>
+const ChannelIndexConverter::Table ChannelIndexConverter::mTable[] = {
+    {"AUDIO_CHANNEL_INDEX_MASK_1", static_cast<audio_channel_mask_t>(AUDIO_CHANNEL_INDEX_MASK_1)},
+    {"AUDIO_CHANNEL_INDEX_MASK_2", static_cast<audio_channel_mask_t>(AUDIO_CHANNEL_INDEX_MASK_2)},
+    {"AUDIO_CHANNEL_INDEX_MASK_3", static_cast<audio_channel_mask_t>(AUDIO_CHANNEL_INDEX_MASK_3)},
+    {"AUDIO_CHANNEL_INDEX_MASK_4", static_cast<audio_channel_mask_t>(AUDIO_CHANNEL_INDEX_MASK_4)},
+    {"AUDIO_CHANNEL_INDEX_MASK_5", static_cast<audio_channel_mask_t>(AUDIO_CHANNEL_INDEX_MASK_5)},
+    {"AUDIO_CHANNEL_INDEX_MASK_6", static_cast<audio_channel_mask_t>(AUDIO_CHANNEL_INDEX_MASK_6)},
+    {"AUDIO_CHANNEL_INDEX_MASK_7", static_cast<audio_channel_mask_t>(AUDIO_CHANNEL_INDEX_MASK_7)},
+    {"AUDIO_CHANNEL_INDEX_MASK_8", static_cast<audio_channel_mask_t>(AUDIO_CHANNEL_INDEX_MASK_8)},
+    TERMINATOR
+};
+
+
+template <>
+const GainModeConverter::Table GainModeConverter::mTable[] = {
+    MAKE_STRING_FROM_ENUM(AUDIO_GAIN_MODE_JOINT),
+    MAKE_STRING_FROM_ENUM(AUDIO_GAIN_MODE_CHANNELS),
+    MAKE_STRING_FROM_ENUM(AUDIO_GAIN_MODE_RAMP),
+    TERMINATOR
+};
+
+
+template <>
+const StreamTypeConverter::Table StreamTypeConverter::mTable[] = {
+    MAKE_STRING_FROM_ENUM(AUDIO_STREAM_VOICE_CALL),
+    MAKE_STRING_FROM_ENUM(AUDIO_STREAM_SYSTEM),
+    MAKE_STRING_FROM_ENUM(AUDIO_STREAM_RING),
+    MAKE_STRING_FROM_ENUM(AUDIO_STREAM_MUSIC),
+    MAKE_STRING_FROM_ENUM(AUDIO_STREAM_ALARM),
+    MAKE_STRING_FROM_ENUM(AUDIO_STREAM_NOTIFICATION),
+    MAKE_STRING_FROM_ENUM(AUDIO_STREAM_BLUETOOTH_SCO ),
+    MAKE_STRING_FROM_ENUM(AUDIO_STREAM_ENFORCED_AUDIBLE),
+    MAKE_STRING_FROM_ENUM(AUDIO_STREAM_DTMF),
+    MAKE_STRING_FROM_ENUM(AUDIO_STREAM_TTS),
+    MAKE_STRING_FROM_ENUM(AUDIO_STREAM_ACCESSIBILITY),
+    MAKE_STRING_FROM_ENUM(AUDIO_STREAM_REROUTING),
+    MAKE_STRING_FROM_ENUM(AUDIO_STREAM_PATCH),
+    TERMINATOR
+};
+
+template<>
+const AudioModeConverter::Table AudioModeConverter::mTable[] = {
+    MAKE_STRING_FROM_ENUM(AUDIO_MODE_INVALID),
+    MAKE_STRING_FROM_ENUM(AUDIO_MODE_CURRENT),
+    MAKE_STRING_FROM_ENUM(AUDIO_MODE_NORMAL),
+    MAKE_STRING_FROM_ENUM(AUDIO_MODE_RINGTONE),
+    MAKE_STRING_FROM_ENUM(AUDIO_MODE_IN_CALL),
+    MAKE_STRING_FROM_ENUM(AUDIO_MODE_IN_COMMUNICATION),
+    TERMINATOR
+};
+
+template <>
+const UsageTypeConverter::Table UsageTypeConverter::mTable[] = {
+    MAKE_STRING_FROM_ENUM(AUDIO_USAGE_UNKNOWN),
+    MAKE_STRING_FROM_ENUM(AUDIO_USAGE_MEDIA),
+    MAKE_STRING_FROM_ENUM(AUDIO_USAGE_VOICE_COMMUNICATION),
+    MAKE_STRING_FROM_ENUM(AUDIO_USAGE_VOICE_COMMUNICATION_SIGNALLING),
+    MAKE_STRING_FROM_ENUM(AUDIO_USAGE_ALARM),
+    MAKE_STRING_FROM_ENUM(AUDIO_USAGE_NOTIFICATION),
+    MAKE_STRING_FROM_ENUM(AUDIO_USAGE_NOTIFICATION_TELEPHONY_RINGTONE),
+    MAKE_STRING_FROM_ENUM(AUDIO_USAGE_NOTIFICATION_COMMUNICATION_REQUEST),
+    MAKE_STRING_FROM_ENUM(AUDIO_USAGE_NOTIFICATION_COMMUNICATION_INSTANT),
+    MAKE_STRING_FROM_ENUM(AUDIO_USAGE_NOTIFICATION_COMMUNICATION_DELAYED),
+    MAKE_STRING_FROM_ENUM(AUDIO_USAGE_NOTIFICATION_EVENT),
+    MAKE_STRING_FROM_ENUM(AUDIO_USAGE_ASSISTANCE_ACCESSIBILITY),
+    MAKE_STRING_FROM_ENUM(AUDIO_USAGE_ASSISTANCE_NAVIGATION_GUIDANCE),
+    MAKE_STRING_FROM_ENUM(AUDIO_USAGE_ASSISTANCE_SONIFICATION),
+    MAKE_STRING_FROM_ENUM(AUDIO_USAGE_GAME),
+    MAKE_STRING_FROM_ENUM(AUDIO_USAGE_VIRTUAL_SOURCE),
+    MAKE_STRING_FROM_ENUM(AUDIO_USAGE_CNT),
+    MAKE_STRING_FROM_ENUM(AUDIO_USAGE_MAX),
+    TERMINATOR
+};
+
+template <>
+const SourceTypeConverter::Table SourceTypeConverter::mTable[] = {
+    MAKE_STRING_FROM_ENUM(AUDIO_SOURCE_DEFAULT),
+    MAKE_STRING_FROM_ENUM(AUDIO_SOURCE_MIC),
+    MAKE_STRING_FROM_ENUM(AUDIO_SOURCE_VOICE_UPLINK),
+    MAKE_STRING_FROM_ENUM(AUDIO_SOURCE_VOICE_DOWNLINK),
+    MAKE_STRING_FROM_ENUM(AUDIO_SOURCE_VOICE_CALL),
+    MAKE_STRING_FROM_ENUM(AUDIO_SOURCE_CAMCORDER),
+    MAKE_STRING_FROM_ENUM(AUDIO_SOURCE_VOICE_RECOGNITION),
+    MAKE_STRING_FROM_ENUM(AUDIO_SOURCE_VOICE_COMMUNICATION),
+    MAKE_STRING_FROM_ENUM(AUDIO_SOURCE_REMOTE_SUBMIX),
+    MAKE_STRING_FROM_ENUM(AUDIO_SOURCE_UNPROCESSED),
+    MAKE_STRING_FROM_ENUM(AUDIO_SOURCE_CNT),
+    MAKE_STRING_FROM_ENUM(AUDIO_SOURCE_MAX),
+    MAKE_STRING_FROM_ENUM(AUDIO_SOURCE_FM_TUNER),
+    MAKE_STRING_FROM_ENUM(AUDIO_SOURCE_HOTWORD),
+    TERMINATOR
+};
+
+template class TypeConverter<OutputDeviceTraits>;
+template class TypeConverter<InputDeviceTraits>;
+template class TypeConverter<OutputFlagTraits>;
+template class TypeConverter<InputFlagTraits>;
+template class TypeConverter<FormatTraits>;
+template class TypeConverter<OutputChannelTraits>;
+template class TypeConverter<InputChannelTraits>;
+template class TypeConverter<ChannelIndexTraits>;
+template class TypeConverter<GainModeTraits>;
+template class TypeConverter<StreamTraits>;
+template class TypeConverter<AudioModeTraits>;
+template class TypeConverter<UsageTraits>;
+template class TypeConverter<SourceTraits>;
+
+bool deviceFromString(const std::string& literalDevice, audio_devices_t& device) {
+    return InputDeviceConverter::fromString(literalDevice, device) ||
+            OutputDeviceConverter::fromString(literalDevice, device);
+}
+
+bool deviceToString(audio_devices_t device, std::string& literalDevice) {
+    if (device & AUDIO_DEVICE_BIT_IN) {
+        return InputDeviceConverter::toString(device, literalDevice);
+    } else {
+        return OutputDeviceConverter::toString(device, literalDevice);
+    }
+}
+
+SampleRateTraits::Collection samplingRatesFromString(
+        const std::string &samplingRates, const char *del)
+{
+    SampleRateTraits::Collection samplingRateCollection;
+    collectionFromString<SampleRateTraits>(samplingRates, samplingRateCollection, del);
+    return samplingRateCollection;
+}
+
+FormatTraits::Collection formatsFromString(
+        const std::string &formats, const char *del)
+{
+    FormatTraits::Collection formatCollection;
+    FormatConverter::collectionFromString(formats, formatCollection, del);
+    return formatCollection;
+}
+
+audio_format_t formatFromString(const std::string &literalFormat, audio_format_t defaultFormat)
+{
+    audio_format_t format;
+    if (literalFormat.empty()) {
+        return defaultFormat;
+    }
+    FormatConverter::fromString(literalFormat, format);
+    return format;
+}
+
+audio_channel_mask_t channelMaskFromString(const std::string &literalChannels)
+{
+    audio_channel_mask_t channels;
+    if (!OutputChannelConverter::fromString(literalChannels, channels) ||
+            !InputChannelConverter::fromString(literalChannels, channels)) {
+        return AUDIO_CHANNEL_INVALID;
+    }
+    return channels;
+}
+
+ChannelTraits::Collection channelMasksFromString(
+        const std::string &channels, const char *del)
+{
+    ChannelTraits::Collection channelMaskCollection;
+    OutputChannelConverter::collectionFromString(channels, channelMaskCollection, del);
+    InputChannelConverter::collectionFromString(channels, channelMaskCollection, del);
+    ChannelIndexConverter::collectionFromString(channels, channelMaskCollection, del);
+    return channelMaskCollection;
+}
+
+InputChannelTraits::Collection inputChannelMasksFromString(
+        const std::string &inChannels, const char *del)
+{
+    InputChannelTraits::Collection inputChannelMaskCollection;
+    InputChannelConverter::collectionFromString(inChannels, inputChannelMaskCollection, del);
+    ChannelIndexConverter::collectionFromString(inChannels, inputChannelMaskCollection, del);
+    return inputChannelMaskCollection;
+}
+
+OutputChannelTraits::Collection outputChannelMasksFromString(
+        const std::string &outChannels, const char *del)
+{
+    OutputChannelTraits::Collection outputChannelMaskCollection;
+    OutputChannelConverter::collectionFromString(outChannels, outputChannelMaskCollection, del);
+    ChannelIndexConverter::collectionFromString(outChannels, outputChannelMaskCollection, del);
+    return outputChannelMaskCollection;
+}
+
+}; // namespace android
diff --git a/media/libmedia/aidl/android/IGraphicBufferSource.aidl b/media/libmedia/aidl/android/IGraphicBufferSource.aidl
new file mode 100644
index 0000000..325c631
--- /dev/null
+++ b/media/libmedia/aidl/android/IGraphicBufferSource.aidl
@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android;
+
+import android.IOMXNode;
+
+/**
+ * Binder interface for controlling a graphic buffer source.
+ *
+ * @hide
+ */
+interface IGraphicBufferSource {
+    void configure(IOMXNode omxNode, int dataSpace);
+    void setSuspend(boolean suspend, long suspendTimeUs);
+    void setRepeatPreviousFrameDelayUs(long repeatAfterUs);
+    void setMaxFps(float maxFps);
+    void setTimeLapseConfig(long timePerFrameUs, long timePerCaptureUs);
+    void setStartTimeUs(long startTimeUs);
+    void setStopTimeUs(long stopTimeUs);
+    void setColorAspects(int aspects);
+    void setTimeOffsetUs(long timeOffsetsUs);
+    void signalEndOfInputStream();
+}
\ No newline at end of file
diff --git a/media/libmedia/aidl/android/IOMXBufferSource.aidl b/media/libmedia/aidl/android/IOMXBufferSource.aidl
new file mode 100644
index 0000000..a5bf448
--- /dev/null
+++ b/media/libmedia/aidl/android/IOMXBufferSource.aidl
@@ -0,0 +1,62 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android;
+
+import android.OMXFenceParcelable;
+
+/**
+ * Binder interface for a buffer source to be used together with an OMX encoder
+ *
+ * @hide
+ */
+interface IOMXBufferSource {
+    /**
+     * This is called when OMX transitions to OMX_StateExecuting, which means
+     * we can start handing it buffers.  If we already have buffers of data
+     * sitting in the BufferQueue, this will send them to the codec.
+     */
+    void onOmxExecuting();
+
+    /**
+     * This is called when OMX transitions to OMX_StateIdle, indicating that
+     * the codec is meant to return all buffers back to the client for them
+     * to be freed. Do NOT submit any more buffers to the component.
+     */
+    void onOmxIdle();
+
+    /**
+     * This is called when OMX transitions to OMX_StateLoaded, indicating that
+     * we are shutting down.
+     */
+    void onOmxLoaded();
+
+    /**
+     * A "codec buffer", i.e. a buffer that can be used to pass data into
+     * the encoder, has been allocated.
+     */
+    void onInputBufferAdded(int bufferID);
+
+    /**
+     * Called from OnEmptyBufferDone. If we have a BQ buffer available,
+     * fill it with a new frame of data; otherwise, just mark it as available.
+     *
+     * fenceParcel contains the fence's fd that the callee should wait on before
+     * using the buffer (or pass on to the user of the buffer, if the user supports
+     * fences). Callee takes ownership of the fence fd even if it fails.
+     */
+    void onInputBufferEmptied(int bufferID, in OMXFenceParcelable fenceParcel);
+}
\ No newline at end of file
diff --git a/media/libmedia/aidl/android/IOMXNode.aidl b/media/libmedia/aidl/android/IOMXNode.aidl
new file mode 100644
index 0000000..ec87fd2
--- /dev/null
+++ b/media/libmedia/aidl/android/IOMXNode.aidl
@@ -0,0 +1,22 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android;
+
+/** @hide */
+interface IOMXNode {
+    // Stub for manual implementation
+}
diff --git a/media/libmedia/aidl/android/IOMXNode.h b/media/libmedia/aidl/android/IOMXNode.h
new file mode 100644
index 0000000..7b17614
--- /dev/null
+++ b/media/libmedia/aidl/android/IOMXNode.h
@@ -0,0 +1,17 @@
+/*
+ * Copyright (c) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <media/IOMX.h>
diff --git a/media/libmedia/aidl/android/OMXFenceParcelable.aidl b/media/libmedia/aidl/android/OMXFenceParcelable.aidl
new file mode 100644
index 0000000..6d517e8
--- /dev/null
+++ b/media/libmedia/aidl/android/OMXFenceParcelable.aidl
@@ -0,0 +1,20 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android;
+
+/** @hide */
+parcelable OMXFenceParcelable cpp_header "media/OMXFenceParcelable.h";
diff --git a/include/media/AVSyncSettings.h b/media/libmedia/include/AVSyncSettings.h
similarity index 100%
rename from include/media/AVSyncSettings.h
rename to media/libmedia/include/AVSyncSettings.h
diff --git a/media/libmedia/include/BufferProviders.h b/media/libmedia/include/BufferProviders.h
new file mode 100644
index 0000000..9d026f6
--- /dev/null
+++ b/media/libmedia/include/BufferProviders.h
@@ -0,0 +1,211 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_BUFFER_PROVIDERS_H
+#define ANDROID_BUFFER_PROVIDERS_H
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <media/AudioBufferProvider.h>
+#include <media/AudioResamplerPublic.h>
+#include <system/audio.h>
+#include <system/audio_effect.h>
+#include <utils/StrongPointer.h>
+
+// external forward declaration from external/sonic/sonic.h
+struct sonicStreamStruct;
+typedef struct sonicStreamStruct *sonicStream;
+
+namespace android {
+
+class EffectBufferHalInterface;
+class EffectHalInterface;
+class EffectsFactoryHalInterface;
+
+// ----------------------------------------------------------------------------
+
+class PassthruBufferProvider : public AudioBufferProvider {
+public:
+    PassthruBufferProvider() : mTrackBufferProvider(NULL) { }
+
+    virtual ~PassthruBufferProvider() { }
+
+    // call this to release the buffer to the upstream provider.
+    // treat it as an audio discontinuity for future samples.
+    virtual void reset() { }
+
+    // set the upstream buffer provider. Consider calling "reset" before this function.
+    virtual void setBufferProvider(AudioBufferProvider *p) {
+        mTrackBufferProvider = p;
+    }
+
+protected:
+    AudioBufferProvider *mTrackBufferProvider;
+};
+
+// Base AudioBufferProvider class used for DownMixerBufferProvider, RemixBufferProvider,
+// and ReformatBufferProvider.
+// It handles a private buffer for use in converting format or channel masks from the
+// input data to a form acceptable by the mixer.
+// TODO: Make a ResamplerBufferProvider when integers are entirely removed from the
+// processing pipeline.
+class CopyBufferProvider : public PassthruBufferProvider {
+public:
+    // Use a private buffer of bufferFrameCount frames (each frame is outputFrameSize bytes).
+    // If bufferFrameCount is 0, no private buffer is created and in-place modification of
+    // the upstream buffer provider's buffers is performed by copyFrames().
+    CopyBufferProvider(size_t inputFrameSize, size_t outputFrameSize,
+            size_t bufferFrameCount);
+    virtual ~CopyBufferProvider();
+
+    // Overrides AudioBufferProvider methods
+    virtual status_t getNextBuffer(Buffer *buffer);
+    virtual void releaseBuffer(Buffer *buffer);
+
+    // Overrides PassthruBufferProvider
+    virtual void reset();
+
+    // this function should be supplied by the derived class.  It converts
+    // #frames in the *src pointer to the *dst pointer.  It is public because
+    // some providers will allow this to work on arbitrary buffers outside
+    // of the internal buffers.
+    virtual void copyFrames(void *dst, const void *src, size_t frames) = 0;
+
+protected:
+    const size_t         mInputFrameSize;
+    const size_t         mOutputFrameSize;
+private:
+    AudioBufferProvider::Buffer mBuffer;
+    const size_t         mLocalBufferFrameCount;
+    void                *mLocalBufferData;
+    size_t               mConsumed;
+};
+
+// DownmixerBufferProvider derives from CopyBufferProvider to provide
+// position dependent downmixing by an Audio Effect.
+class DownmixerBufferProvider : public CopyBufferProvider {
+public:
+    DownmixerBufferProvider(audio_channel_mask_t inputChannelMask,
+            audio_channel_mask_t outputChannelMask, audio_format_t format,
+            uint32_t sampleRate, int32_t sessionId, size_t bufferFrameCount);
+    virtual ~DownmixerBufferProvider();
+    //Overrides
+    virtual void copyFrames(void *dst, const void *src, size_t frames);
+
+    bool isValid() const { return mDownmixInterface.get() != NULL; }
+    static status_t init();
+    static bool isMultichannelCapable() { return sIsMultichannelCapable; }
+
+protected:
+    sp<EffectsFactoryHalInterface> mEffectsFactory;
+    sp<EffectHalInterface> mDownmixInterface;
+    size_t mInFrameSize;
+    size_t mOutFrameSize;
+    sp<EffectBufferHalInterface> mInBuffer;
+    sp<EffectBufferHalInterface> mOutBuffer;
+    effect_config_t    mDownmixConfig;
+
+    // effect descriptor for the downmixer used by the mixer
+    static effect_descriptor_t sDwnmFxDesc;
+    // indicates whether a downmix effect has been found and is usable by this mixer
+    static bool                sIsMultichannelCapable;
+    // FIXME: should we allow effects outside of the framework?
+    // We need to here. A special ioId that must be <= -2 so it does not map to a session.
+    static const int32_t SESSION_ID_INVALID_AND_IGNORED = -2;
+};
+
+// RemixBufferProvider derives from CopyBufferProvider to perform an
+// upmix or downmix to the proper channel count and mask.
+class RemixBufferProvider : public CopyBufferProvider {
+public:
+    RemixBufferProvider(audio_channel_mask_t inputChannelMask,
+            audio_channel_mask_t outputChannelMask, audio_format_t format,
+            size_t bufferFrameCount);
+    //Overrides
+    virtual void copyFrames(void *dst, const void *src, size_t frames);
+
+protected:
+    const audio_format_t mFormat;
+    const size_t         mSampleSize;
+    const size_t         mInputChannels;
+    const size_t         mOutputChannels;
+    int8_t               mIdxAry[sizeof(uint32_t) * 8]; // 32 bits => channel indices
+};
+
+// ReformatBufferProvider derives from CopyBufferProvider to convert the input data
+// to an acceptable mixer input format type.
+class ReformatBufferProvider : public CopyBufferProvider {
+public:
+    ReformatBufferProvider(int32_t channelCount,
+            audio_format_t inputFormat, audio_format_t outputFormat,
+            size_t bufferFrameCount);
+    virtual void copyFrames(void *dst, const void *src, size_t frames);
+
+protected:
+    const uint32_t       mChannelCount;
+    const audio_format_t mInputFormat;
+    const audio_format_t mOutputFormat;
+};
+
+// TimestretchBufferProvider derives from PassthruBufferProvider for time stretching
+class TimestretchBufferProvider : public PassthruBufferProvider {
+public:
+    TimestretchBufferProvider(int32_t channelCount,
+            audio_format_t format, uint32_t sampleRate,
+            const AudioPlaybackRate &playbackRate);
+    virtual ~TimestretchBufferProvider();
+
+    // Overrides AudioBufferProvider methods
+    virtual status_t getNextBuffer(Buffer* buffer);
+    virtual void releaseBuffer(Buffer* buffer);
+
+    // Overrides PassthruBufferProvider
+    virtual void reset();
+
+    virtual status_t setPlaybackRate(const AudioPlaybackRate &playbackRate);
+
+    // processes frames
+    // dstBuffer is where to place the data
+    // dstFrames [in/out] is the desired frames (return with actual placed in buffer)
+    // srcBuffer is the source data
+    // srcFrames [in/out] is the available source frames (return with consumed)
+    virtual void processFrames(void *dstBuffer, size_t *dstFrames,
+            const void *srcBuffer, size_t *srcFrames);
+
+protected:
+    const uint32_t       mChannelCount;
+    const audio_format_t mFormat;
+    const uint32_t       mSampleRate; // const for now (TODO change this)
+    const size_t         mFrameSize;
+    AudioPlaybackRate    mPlaybackRate;
+
+private:
+    AudioBufferProvider::Buffer mBuffer;          // for upstream request
+    size_t               mLocalBufferFrameCount;  // size of local buffer
+    void                *mLocalBufferData;        // internally allocated buffer for data returned
+                                                  // to caller
+    size_t               mRemaining;              // remaining data in local buffer
+    sonicStream          mSonicStream;            // handle to sonic timestretch object
+    //FIXME: this dependency should be abstracted out
+    bool                 mFallbackFailErrorShown; // log fallback error only once
+    bool                 mAudioPlaybackRateValid; // flag for current parameters validity
+};
+
+// ----------------------------------------------------------------------------
+} // namespace android
+
+#endif // ANDROID_BUFFER_PROVIDERS_H
diff --git a/media/libmedia/include/BufferingSettings.h b/media/libmedia/include/BufferingSettings.h
new file mode 100644
index 0000000..e812d2a
--- /dev/null
+++ b/media/libmedia/include/BufferingSettings.h
@@ -0,0 +1,76 @@
+/*
+ * Copyright 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_BUFFERING_SETTINGS_H
+#define ANDROID_BUFFERING_SETTINGS_H
+
+#include <binder/Parcelable.h>
+
+namespace android {
+
+enum BufferingMode : int {
+    // Do not support buffering.
+    BUFFERING_MODE_NONE             = 0,
+    // Support only time based buffering.
+    BUFFERING_MODE_TIME_ONLY        = 1,
+    // Support only size based buffering.
+    BUFFERING_MODE_SIZE_ONLY        = 2,
+    // Support both time and size based buffering, time based calculation precedes size based.
+    // Size based calculation will be used only when time information is not available for
+    // the stream.
+    BUFFERING_MODE_TIME_THEN_SIZE   = 3,
+    // Number of modes.
+    BUFFERING_MODE_COUNT            = 4,
+};
+
+struct BufferingSettings : public Parcelable {
+    static const int kNoWatermark = -1;
+
+    static bool IsValidBufferingMode(int mode);
+    static bool IsTimeBasedBufferingMode(int mode);
+    static bool IsSizeBasedBufferingMode(int mode);
+
+    BufferingMode mInitialBufferingMode;  // for prepare
+    BufferingMode mRebufferingMode;  // for playback
+
+    int mInitialWatermarkMs;  // time based
+    int mInitialWatermarkKB;  // size based
+
+    // When cached data is below this mark, playback will be paused for buffering
+    // till data reach |mRebufferingWatermarkHighMs| or end of stream.
+    int mRebufferingWatermarkLowMs;
+    // When cached data is above this mark, buffering will be paused.
+    int mRebufferingWatermarkHighMs;
+
+    // When cached data is below this mark, playback will be paused for buffering
+    // till data reach |mRebufferingWatermarkHighKB| or end of stream.
+    int mRebufferingWatermarkLowKB;
+    // When cached data is above this mark, buffering will be paused.
+    int mRebufferingWatermarkHighKB;
+
+    BufferingSettings();
+
+    status_t writeToParcel(Parcel* parcel) const override;
+    status_t readFromParcel(const Parcel* parcel) override;
+
+    String8 toString() const;
+};
+
+} // namespace android
+
+// ---------------------------------------------------------------------------
+
+#endif // ANDROID_BUFFERING_SETTINGS_H
diff --git a/include/media/CharacterEncodingDetector.h b/media/libmedia/include/CharacterEncodingDetector.h
similarity index 100%
rename from include/media/CharacterEncodingDetector.h
rename to media/libmedia/include/CharacterEncodingDetector.h
diff --git a/media/libmedia/include/Crypto.h b/media/libmedia/include/Crypto.h
new file mode 100644
index 0000000..ce08f98
--- /dev/null
+++ b/media/libmedia/include/Crypto.h
@@ -0,0 +1,79 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef CRYPTO_H_
+
+#define CRYPTO_H_
+
+#include <media/ICrypto.h>
+#include <utils/threads.h>
+#include <utils/KeyedVector.h>
+
+#include "SharedLibrary.h"
+
+namespace android {
+
+struct CryptoFactory;
+struct CryptoPlugin;
+
+struct Crypto : public BnCrypto {
+    Crypto();
+    virtual ~Crypto();
+
+    virtual status_t initCheck() const;
+
+    virtual bool isCryptoSchemeSupported(const uint8_t uuid[16]);
+
+    virtual status_t createPlugin(
+            const uint8_t uuid[16], const void *data, size_t size);
+
+    virtual status_t destroyPlugin();
+
+    virtual bool requiresSecureDecoderComponent(
+            const char *mime) const;
+
+    virtual void notifyResolution(uint32_t width, uint32_t height);
+
+    virtual status_t setMediaDrmSession(const Vector<uint8_t> &sessionId);
+
+    virtual ssize_t decrypt(const uint8_t key[16], const uint8_t iv[16],
+            CryptoPlugin::Mode mode, const CryptoPlugin::Pattern &pattern,
+            const sp<IMemory> &source, size_t offset,
+            const CryptoPlugin::SubSample *subSamples, size_t numSubSamples,
+            const DestinationBuffer &destination, AString *errorDetailMsg);
+
+private:
+    mutable Mutex mLock;
+
+    status_t mInitCheck;
+    sp<SharedLibrary> mLibrary;
+    CryptoFactory *mFactory;
+    CryptoPlugin *mPlugin;
+
+    static KeyedVector<Vector<uint8_t>, String8> mUUIDToLibraryPathMap;
+    static KeyedVector<String8, wp<SharedLibrary> > mLibraryPathToOpenLibraryMap;
+    static Mutex mMapLock;
+
+    void findFactoryForScheme(const uint8_t uuid[16]);
+    bool loadLibraryForScheme(const String8 &path, const uint8_t uuid[16]);
+    void closeFactory();
+
+    DISALLOW_EVIL_CONSTRUCTORS(Crypto);
+};
+
+}  // namespace android
+
+#endif  // CRYPTO_H_
diff --git a/media/libmedia/include/CryptoHal.h b/media/libmedia/include/CryptoHal.h
new file mode 100644
index 0000000..28ade20
--- /dev/null
+++ b/media/libmedia/include/CryptoHal.h
@@ -0,0 +1,93 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef CRYPTO_HAL_H_
+
+#define CRYPTO_HAL_H_
+
+#include <android/hardware/drm/1.0/ICryptoFactory.h>
+#include <android/hardware/drm/1.0/ICryptoPlugin.h>
+
+#include <media/ICrypto.h>
+#include <utils/KeyedVector.h>
+#include <utils/threads.h>
+
+using ::android::hardware::drm::V1_0::ICryptoFactory;
+using ::android::hardware::drm::V1_0::ICryptoPlugin;
+using ::android::hardware::drm::V1_0::SharedBuffer;
+
+class IMemoryHeap;
+
+namespace android {
+
+struct CryptoHal : public BnCrypto {
+    CryptoHal();
+    virtual ~CryptoHal();
+
+    virtual status_t initCheck() const;
+
+    virtual bool isCryptoSchemeSupported(const uint8_t uuid[16]);
+
+    virtual status_t createPlugin(
+            const uint8_t uuid[16], const void *data, size_t size);
+
+    virtual status_t destroyPlugin();
+
+    virtual bool requiresSecureDecoderComponent(
+            const char *mime) const;
+
+    virtual void notifyResolution(uint32_t width, uint32_t height);
+
+    virtual status_t setMediaDrmSession(const Vector<uint8_t> &sessionId);
+
+    virtual ssize_t decrypt(const uint8_t key[16], const uint8_t iv[16],
+            CryptoPlugin::Mode mode, const CryptoPlugin::Pattern &pattern,
+            const sp<IMemory> &source, size_t offset,
+            const CryptoPlugin::SubSample *subSamples, size_t numSubSamples,
+            const ICrypto::DestinationBuffer &destination,
+            AString *errorDetailMsg);
+
+private:
+    mutable Mutex mLock;
+
+    const Vector<sp<ICryptoFactory>> mFactories;
+    sp<ICryptoPlugin> mPlugin;
+
+    /**
+     * mInitCheck is:
+     *   NO_INIT if a plugin hasn't been created yet
+     *   ERROR_UNSUPPORTED if a plugin can't be created for the uuid
+     *   OK after a plugin has been created and mPlugin is valid
+     */
+    status_t mInitCheck;
+
+    KeyedVector<void *, uint32_t> mHeapBases;
+    uint32_t mNextBufferId;
+
+    Vector<sp<ICryptoFactory>> makeCryptoFactories();
+    sp<ICryptoPlugin> makeCryptoPlugin(const sp<ICryptoFactory>& factory,
+            const uint8_t uuid[16], const void *initData, size_t size);
+
+    void setHeapBase(const sp<IMemoryHeap>& heap);
+
+    status_t toSharedBuffer(const sp<IMemory>& memory, ::SharedBuffer* buffer);
+
+    DISALLOW_EVIL_CONSTRUCTORS(CryptoHal);
+};
+
+}  // namespace android
+
+#endif  // CRYPTO_HAL_H_
diff --git a/media/libmedia/include/Drm.h b/media/libmedia/include/Drm.h
new file mode 100644
index 0000000..fc869cc
--- /dev/null
+++ b/media/libmedia/include/Drm.h
@@ -0,0 +1,172 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef DRM_H_
+
+#define DRM_H_
+
+#include "SharedLibrary.h"
+
+#include <media/IDrm.h>
+#include <media/IDrmClient.h>
+#include <utils/threads.h>
+
+namespace android {
+
+class DrmFactory;
+class DrmPlugin;
+struct DrmSessionClientInterface;
+
+struct Drm : public BnDrm,
+             public IBinder::DeathRecipient,
+             public DrmPluginListener {
+    Drm();
+    virtual ~Drm();
+
+    virtual status_t initCheck() const;
+
+    virtual bool isCryptoSchemeSupported(const uint8_t uuid[16], const String8 &mimeType);
+
+    virtual status_t createPlugin(const uint8_t uuid[16], const String8 &appPackageName);
+
+    virtual status_t destroyPlugin();
+
+    virtual status_t openSession(Vector<uint8_t> &sessionId);
+
+    virtual status_t closeSession(Vector<uint8_t> const &sessionId);
+
+    virtual status_t
+        getKeyRequest(Vector<uint8_t> const &sessionId,
+                      Vector<uint8_t> const &initData,
+                      String8 const &mimeType, DrmPlugin::KeyType keyType,
+                      KeyedVector<String8, String8> const &optionalParameters,
+                      Vector<uint8_t> &request, String8 &defaultUrl,
+                      DrmPlugin::KeyRequestType *keyRequestType);
+
+    virtual status_t provideKeyResponse(Vector<uint8_t> const &sessionId,
+                                        Vector<uint8_t> const &response,
+                                        Vector<uint8_t> &keySetId);
+
+    virtual status_t removeKeys(Vector<uint8_t> const &keySetId);
+
+    virtual status_t restoreKeys(Vector<uint8_t> const &sessionId,
+                                 Vector<uint8_t> const &keySetId);
+
+    virtual status_t queryKeyStatus(Vector<uint8_t> const &sessionId,
+                                    KeyedVector<String8, String8> &infoMap) const;
+
+    virtual status_t getProvisionRequest(String8 const &certType,
+                                         String8 const &certAuthority,
+                                         Vector<uint8_t> &request,
+                                         String8 &defaulUrl);
+
+    virtual status_t provideProvisionResponse(Vector<uint8_t> const &response,
+                                              Vector<uint8_t> &certificate,
+                                              Vector<uint8_t> &wrappedKey);
+
+    virtual status_t getSecureStops(List<Vector<uint8_t> > &secureStops);
+    virtual status_t getSecureStop(Vector<uint8_t> const &ssid, Vector<uint8_t> &secureStop);
+
+    virtual status_t releaseSecureStops(Vector<uint8_t> const &ssRelease);
+    virtual status_t releaseAllSecureStops();
+
+    virtual status_t getPropertyString(String8 const &name, String8 &value ) const;
+    virtual status_t getPropertyByteArray(String8 const &name,
+                                          Vector<uint8_t> &value ) const;
+    virtual status_t setPropertyString(String8 const &name, String8 const &value ) const;
+    virtual status_t setPropertyByteArray(String8 const &name,
+                                          Vector<uint8_t> const &value ) const;
+
+    virtual status_t setCipherAlgorithm(Vector<uint8_t> const &sessionId,
+                                        String8 const &algorithm);
+
+    virtual status_t setMacAlgorithm(Vector<uint8_t> const &sessionId,
+                                     String8 const &algorithm);
+
+    virtual status_t encrypt(Vector<uint8_t> const &sessionId,
+                             Vector<uint8_t> const &keyId,
+                             Vector<uint8_t> const &input,
+                             Vector<uint8_t> const &iv,
+                             Vector<uint8_t> &output);
+
+    virtual status_t decrypt(Vector<uint8_t> const &sessionId,
+                             Vector<uint8_t> const &keyId,
+                             Vector<uint8_t> const &input,
+                             Vector<uint8_t> const &iv,
+                             Vector<uint8_t> &output);
+
+    virtual status_t sign(Vector<uint8_t> const &sessionId,
+                          Vector<uint8_t> const &keyId,
+                          Vector<uint8_t> const &message,
+                          Vector<uint8_t> &signature);
+
+    virtual status_t verify(Vector<uint8_t> const &sessionId,
+                            Vector<uint8_t> const &keyId,
+                            Vector<uint8_t> const &message,
+                            Vector<uint8_t> const &signature,
+                            bool &match);
+
+    virtual status_t signRSA(Vector<uint8_t> const &sessionId,
+                             String8 const &algorithm,
+                             Vector<uint8_t> const &message,
+                             Vector<uint8_t> const &wrappedKey,
+                             Vector<uint8_t> &signature);
+
+    virtual status_t setListener(const sp<IDrmClient>& listener);
+
+    virtual void sendEvent(DrmPlugin::EventType eventType, int extra,
+                           Vector<uint8_t> const *sessionId,
+                           Vector<uint8_t> const *data);
+
+    virtual void sendExpirationUpdate(Vector<uint8_t> const *sessionId,
+                                      int64_t expiryTimeInMS);
+
+    virtual void sendKeysChange(Vector<uint8_t> const *sessionId,
+                                Vector<DrmPlugin::KeyStatus> const *keyStatusList,
+                                bool hasNewUsableKey);
+
+    virtual void binderDied(const wp<IBinder> &the_late_who);
+
+private:
+    static Mutex mLock;
+
+    status_t mInitCheck;
+
+    sp<DrmSessionClientInterface> mDrmSessionClient;
+
+    sp<IDrmClient> mListener;
+    mutable Mutex mEventLock;
+    mutable Mutex mNotifyLock;
+
+    sp<SharedLibrary> mLibrary;
+    DrmFactory *mFactory;
+    DrmPlugin *mPlugin;
+
+    static KeyedVector<Vector<uint8_t>, String8> mUUIDToLibraryPathMap;
+    static KeyedVector<String8, wp<SharedLibrary> > mLibraryPathToOpenLibraryMap;
+    static Mutex mMapLock;
+
+    void findFactoryForScheme(const uint8_t uuid[16]);
+    bool loadLibraryForScheme(const String8 &path, const uint8_t uuid[16]);
+    void closeFactory();
+    void writeByteArray(Parcel &obj, Vector<uint8_t> const *array);
+
+    DISALLOW_EVIL_CONSTRUCTORS(Drm);
+};
+
+}  // namespace android
+
+#endif  // CRYPTO_H_
diff --git a/media/libmedia/include/DrmHal.h b/media/libmedia/include/DrmHal.h
new file mode 100644
index 0000000..e031765
--- /dev/null
+++ b/media/libmedia/include/DrmHal.h
@@ -0,0 +1,183 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef DRM_HAL_H_
+
+#define DRM_HAL_H_
+
+#include <android/hardware/drm/1.0/IDrmPlugin.h>
+#include <android/hardware/drm/1.0/IDrmPluginListener.h>
+#include <android/hardware/drm/1.0/IDrmFactory.h>
+
+#include <media/IDrm.h>
+#include <media/IDrmClient.h>
+#include <utils/threads.h>
+
+using ::android::hardware::drm::V1_0::EventType;
+using ::android::hardware::drm::V1_0::IDrmFactory;
+using ::android::hardware::drm::V1_0::IDrmPlugin;
+using ::android::hardware::drm::V1_0::IDrmPluginListener;
+using ::android::hardware::drm::V1_0::KeyStatus;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+
+namespace android {
+
+struct DrmSessionClientInterface;
+
+struct DrmHal : public BnDrm,
+             public IBinder::DeathRecipient,
+             public IDrmPluginListener {
+    DrmHal();
+    virtual ~DrmHal();
+
+    virtual status_t initCheck() const;
+
+    virtual bool isCryptoSchemeSupported(const uint8_t uuid[16], const String8 &mimeType);
+
+    virtual status_t createPlugin(const uint8_t uuid[16],
+                                  const String8 &appPackageName);
+
+    virtual status_t destroyPlugin();
+
+    virtual status_t openSession(Vector<uint8_t> &sessionId);
+
+    virtual status_t closeSession(Vector<uint8_t> const &sessionId);
+
+    virtual status_t
+        getKeyRequest(Vector<uint8_t> const &sessionId,
+                      Vector<uint8_t> const &initData,
+                      String8 const &mimeType, DrmPlugin::KeyType keyType,
+                      KeyedVector<String8, String8> const &optionalParameters,
+                      Vector<uint8_t> &request, String8 &defaultUrl,
+                      DrmPlugin::KeyRequestType *keyRequestType);
+
+    virtual status_t provideKeyResponse(Vector<uint8_t> const &sessionId,
+                                        Vector<uint8_t> const &response,
+                                        Vector<uint8_t> &keySetId);
+
+    virtual status_t removeKeys(Vector<uint8_t> const &keySetId);
+
+    virtual status_t restoreKeys(Vector<uint8_t> const &sessionId,
+                                 Vector<uint8_t> const &keySetId);
+
+    virtual status_t queryKeyStatus(Vector<uint8_t> const &sessionId,
+                                    KeyedVector<String8, String8> &infoMap) const;
+
+    virtual status_t getProvisionRequest(String8 const &certType,
+                                         String8 const &certAuthority,
+                                         Vector<uint8_t> &request,
+                                         String8 &defaulUrl);
+
+    virtual status_t provideProvisionResponse(Vector<uint8_t> const &response,
+                                              Vector<uint8_t> &certificate,
+                                              Vector<uint8_t> &wrappedKey);
+
+    virtual status_t getSecureStops(List<Vector<uint8_t>> &secureStops);
+    virtual status_t getSecureStop(Vector<uint8_t> const &ssid, Vector<uint8_t> &secureStop);
+
+    virtual status_t releaseSecureStops(Vector<uint8_t> const &ssRelease);
+    virtual status_t releaseAllSecureStops();
+
+    virtual status_t getPropertyString(String8 const &name, String8 &value ) const;
+    virtual status_t getPropertyByteArray(String8 const &name,
+                                          Vector<uint8_t> &value ) const;
+    virtual status_t setPropertyString(String8 const &name, String8 const &value ) const;
+    virtual status_t setPropertyByteArray(String8 const &name,
+                                          Vector<uint8_t> const &value ) const;
+
+    virtual status_t setCipherAlgorithm(Vector<uint8_t> const &sessionId,
+                                        String8 const &algorithm);
+
+    virtual status_t setMacAlgorithm(Vector<uint8_t> const &sessionId,
+                                     String8 const &algorithm);
+
+    virtual status_t encrypt(Vector<uint8_t> const &sessionId,
+                             Vector<uint8_t> const &keyId,
+                             Vector<uint8_t> const &input,
+                             Vector<uint8_t> const &iv,
+                             Vector<uint8_t> &output);
+
+    virtual status_t decrypt(Vector<uint8_t> const &sessionId,
+                             Vector<uint8_t> const &keyId,
+                             Vector<uint8_t> const &input,
+                             Vector<uint8_t> const &iv,
+                             Vector<uint8_t> &output);
+
+    virtual status_t sign(Vector<uint8_t> const &sessionId,
+                          Vector<uint8_t> const &keyId,
+                          Vector<uint8_t> const &message,
+                          Vector<uint8_t> &signature);
+
+    virtual status_t verify(Vector<uint8_t> const &sessionId,
+                            Vector<uint8_t> const &keyId,
+                            Vector<uint8_t> const &message,
+                            Vector<uint8_t> const &signature,
+                            bool &match);
+
+    virtual status_t signRSA(Vector<uint8_t> const &sessionId,
+                             String8 const &algorithm,
+                             Vector<uint8_t> const &message,
+                             Vector<uint8_t> const &wrappedKey,
+                             Vector<uint8_t> &signature);
+
+    virtual status_t setListener(const sp<IDrmClient>& listener);
+
+    // Methods of IDrmPluginListener
+    Return<void> sendEvent(EventType eventType,
+            const hidl_vec<uint8_t>& sessionId, const hidl_vec<uint8_t>& data);
+
+    Return<void> sendExpirationUpdate(const hidl_vec<uint8_t>& sessionId,
+            int64_t expiryTimeInMS);
+
+    Return<void> sendKeysChange(const hidl_vec<uint8_t>& sessionId,
+            const hidl_vec<KeyStatus>& keyStatusList, bool hasNewUsableKey);
+
+    virtual void binderDied(const wp<IBinder> &the_late_who);
+
+private:
+    static Mutex mLock;
+
+    sp<DrmSessionClientInterface> mDrmSessionClient;
+
+    sp<IDrmClient> mListener;
+    mutable Mutex mEventLock;
+    mutable Mutex mNotifyLock;
+
+    const Vector<sp<IDrmFactory>> mFactories;
+    sp<IDrmPlugin> mPlugin;
+
+    /**
+     * mInitCheck is:
+     *   NO_INIT if a plugin hasn't been created yet
+     *   ERROR_UNSUPPORTED if a plugin can't be created for the uuid
+     *   OK after a plugin has been created and mPlugin is valid
+     */
+    status_t mInitCheck;
+
+    Vector<sp<IDrmFactory>> makeDrmFactories();
+    sp<IDrmPlugin> makeDrmPlugin(const sp<IDrmFactory>& factory,
+            const uint8_t uuid[16], const String8& appPackageName);
+
+    void writeByteArray(Parcel &obj, const hidl_vec<uint8_t>& array);
+
+    DISALLOW_EVIL_CONSTRUCTORS(DrmHal);
+};
+
+}  // namespace android
+
+#endif  // DRM_HAL_H_
diff --git a/include/media/DrmSessionClientInterface.h b/media/libmedia/include/DrmSessionClientInterface.h
similarity index 100%
rename from include/media/DrmSessionClientInterface.h
rename to media/libmedia/include/DrmSessionClientInterface.h
diff --git a/include/media/DrmSessionManager.h b/media/libmedia/include/DrmSessionManager.h
similarity index 100%
rename from include/media/DrmSessionManager.h
rename to media/libmedia/include/DrmSessionManager.h
diff --git a/include/media/ExtendedAudioBufferProvider.h b/media/libmedia/include/ExtendedAudioBufferProvider.h
similarity index 100%
rename from include/media/ExtendedAudioBufferProvider.h
rename to media/libmedia/include/ExtendedAudioBufferProvider.h
diff --git a/media/libmedia/include/ICrypto.h b/media/libmedia/include/ICrypto.h
new file mode 100644
index 0000000..8990f4b
--- /dev/null
+++ b/media/libmedia/include/ICrypto.h
@@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <binder/IInterface.h>
+#include <cutils/native_handle.h>
+#include <media/hardware/CryptoAPI.h>
+#include <media/stagefright/foundation/ABase.h>
+
+#ifndef ANDROID_ICRYPTO_H_
+
+#define ANDROID_ICRYPTO_H_
+
+namespace android {
+
+struct AString;
+class IMemory;
+
+struct ICrypto : public IInterface {
+    DECLARE_META_INTERFACE(Crypto);
+
+    virtual status_t initCheck() const = 0;
+
+    virtual bool isCryptoSchemeSupported(const uint8_t uuid[16]) = 0;
+
+    virtual status_t createPlugin(
+            const uint8_t uuid[16], const void *data, size_t size) = 0;
+
+    virtual status_t destroyPlugin() = 0;
+
+    virtual bool requiresSecureDecoderComponent(
+            const char *mime) const = 0;
+
+    virtual void notifyResolution(uint32_t width, uint32_t height) = 0;
+
+    virtual status_t setMediaDrmSession(const Vector<uint8_t> &sessionId) = 0;
+
+    enum DestinationType {
+        kDestinationTypeSharedMemory, // non-secure
+        kDestinationTypeNativeHandle  // secure
+    };
+
+    struct DestinationBuffer {
+        DestinationType mType;
+        native_handle_t *mHandle;
+        sp<IMemory> mSharedMemory;
+    };
+
+    virtual ssize_t decrypt(const uint8_t key[16], const uint8_t iv[16],
+            CryptoPlugin::Mode mode, const CryptoPlugin::Pattern &pattern,
+            const sp<IMemory> &source, size_t offset,
+            const CryptoPlugin::SubSample *subSamples, size_t numSubSamples,
+            const DestinationBuffer &destination, AString *errorDetailMsg) = 0;
+
+private:
+    DISALLOW_EVIL_CONSTRUCTORS(ICrypto);
+};
+
+struct BnCrypto : public BnInterface<ICrypto> {
+    virtual status_t onTransact(
+            uint32_t code, const Parcel &data, Parcel *reply,
+            uint32_t flags = 0);
+private:
+    void readVector(const Parcel &data, Vector<uint8_t> &vector) const;
+    void writeVector(Parcel *reply, Vector<uint8_t> const &vector) const;
+};
+
+}  // namespace android
+
+#endif // ANDROID_ICRYPTO_H_
diff --git a/include/media/IDataSource.h b/media/libmedia/include/IDataSource.h
similarity index 100%
rename from include/media/IDataSource.h
rename to media/libmedia/include/IDataSource.h
diff --git a/media/libmedia/include/IDrm.h b/media/libmedia/include/IDrm.h
new file mode 100644
index 0000000..a57e372
--- /dev/null
+++ b/media/libmedia/include/IDrm.h
@@ -0,0 +1,141 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <binder/IInterface.h>
+#include <media/stagefright/foundation/ABase.h>
+#include <media/drm/DrmAPI.h>
+#include <media/IDrmClient.h>
+
+#ifndef ANDROID_IDRM_H_
+
+#define ANDROID_IDRM_H_
+
+namespace android {
+
+struct AString;
+
+struct IDrm : public IInterface {
+    DECLARE_META_INTERFACE(Drm);
+
+    virtual status_t initCheck() const = 0;
+
+    virtual bool isCryptoSchemeSupported(const uint8_t uuid[16], const String8 &mimeType) = 0;
+
+    virtual status_t createPlugin(const uint8_t uuid[16],
+                                  const String8 &appPackageName) = 0;
+
+    virtual status_t destroyPlugin() = 0;
+
+    virtual status_t openSession(Vector<uint8_t> &sessionId) = 0;
+
+    virtual status_t closeSession(Vector<uint8_t> const &sessionId) = 0;
+
+    virtual status_t
+        getKeyRequest(Vector<uint8_t> const &sessionId,
+                      Vector<uint8_t> const &initData,
+                      String8 const &mimeType, DrmPlugin::KeyType keyType,
+                      KeyedVector<String8, String8> const &optionalParameters,
+                      Vector<uint8_t> &request, String8 &defaultUrl,
+                      DrmPlugin::KeyRequestType *keyRequestType) = 0;
+
+    virtual status_t provideKeyResponse(Vector<uint8_t> const &sessionId,
+                                        Vector<uint8_t> const &response,
+                                        Vector<uint8_t> &keySetId) = 0;
+
+    virtual status_t removeKeys(Vector<uint8_t> const &keySetId) = 0;
+
+    virtual status_t restoreKeys(Vector<uint8_t> const &sessionId,
+                                 Vector<uint8_t> const &keySetId) = 0;
+
+    virtual status_t queryKeyStatus(Vector<uint8_t> const &sessionId,
+                                    KeyedVector<String8, String8> &infoMap) const = 0;
+
+    virtual status_t getProvisionRequest(String8 const &certType,
+                                         String8 const &certAuthority,
+                                         Vector<uint8_t> &request,
+                                         String8 &defaulUrl) = 0;
+
+    virtual status_t provideProvisionResponse(Vector<uint8_t> const &response,
+                                              Vector<uint8_t> &certificate,
+                                              Vector<uint8_t> &wrappedKey) = 0;
+
+    virtual status_t getSecureStops(List<Vector<uint8_t> > &secureStops) = 0;
+    virtual status_t getSecureStop(Vector<uint8_t> const &ssid, Vector<uint8_t> &secureStop) = 0;
+
+    virtual status_t releaseSecureStops(Vector<uint8_t> const &ssRelease) = 0;
+    virtual status_t releaseAllSecureStops() = 0;
+
+    virtual status_t getPropertyString(String8 const &name, String8 &value) const = 0;
+    virtual status_t getPropertyByteArray(String8 const &name,
+                                          Vector<uint8_t> &value) const = 0;
+    virtual status_t setPropertyString(String8 const &name,
+                                       String8 const &value ) const = 0;
+    virtual status_t setPropertyByteArray(String8 const &name,
+                                          Vector<uint8_t> const &value) const = 0;
+
+    virtual status_t setCipherAlgorithm(Vector<uint8_t> const &sessionId,
+                                        String8 const &algorithm) = 0;
+
+    virtual status_t setMacAlgorithm(Vector<uint8_t> const &sessionId,
+                                     String8 const &algorithm) = 0;
+
+    virtual status_t encrypt(Vector<uint8_t> const &sessionId,
+                             Vector<uint8_t> const &keyId,
+                             Vector<uint8_t> const &input,
+                             Vector<uint8_t> const &iv,
+                             Vector<uint8_t> &output) = 0;
+
+    virtual status_t decrypt(Vector<uint8_t> const &sessionId,
+                             Vector<uint8_t> const &keyId,
+                             Vector<uint8_t> const &input,
+                             Vector<uint8_t> const &iv,
+                             Vector<uint8_t> &output) = 0;
+
+    virtual status_t sign(Vector<uint8_t> const &sessionId,
+                          Vector<uint8_t> const &keyId,
+                          Vector<uint8_t> const &message,
+                          Vector<uint8_t> &signature) = 0;
+
+    virtual status_t verify(Vector<uint8_t> const &sessionId,
+                            Vector<uint8_t> const &keyId,
+                            Vector<uint8_t> const &message,
+                            Vector<uint8_t> const &signature,
+                            bool &match) = 0;
+
+    virtual status_t signRSA(Vector<uint8_t> const &sessionId,
+                             String8 const &algorithm,
+                             Vector<uint8_t> const &message,
+                             Vector<uint8_t> const &wrappedKey,
+                             Vector<uint8_t> &signature) = 0;
+
+    virtual status_t setListener(const sp<IDrmClient>& listener) = 0;
+
+private:
+    DISALLOW_EVIL_CONSTRUCTORS(IDrm);
+};
+
+struct BnDrm : public BnInterface<IDrm> {
+    virtual status_t onTransact(
+            uint32_t code, const Parcel &data, Parcel *reply,
+            uint32_t flags = 0);
+private:
+    void readVector(const Parcel &data, Vector<uint8_t> &vector) const;
+    void writeVector(Parcel *reply, Vector<uint8_t> const &vector) const;
+};
+
+}  // namespace android
+
+#endif // ANDROID_IDRM_H_
diff --git a/include/media/IDrmClient.h b/media/libmedia/include/IDrmClient.h
similarity index 100%
rename from include/media/IDrmClient.h
rename to media/libmedia/include/IDrmClient.h
diff --git a/include/media/IHDCP.h b/media/libmedia/include/IHDCP.h
similarity index 100%
rename from include/media/IHDCP.h
rename to media/libmedia/include/IHDCP.h
diff --git a/media/libmedia/include/IMediaAnalyticsService.h b/media/libmedia/include/IMediaAnalyticsService.h
new file mode 100644
index 0000000..f635e94
--- /dev/null
+++ b/media/libmedia/include/IMediaAnalyticsService.h
@@ -0,0 +1,70 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_IMEDIAANALYTICSSERVICE_H
+#define ANDROID_IMEDIAANALYTICSSERVICE_H
+
+#include <utils/String8.h>
+#include <binder/IInterface.h>
+#include <binder/Parcel.h>
+
+#include <sys/types.h>
+#include <utils/Errors.h>
+#include <utils/Log.h>
+#include <utils/RefBase.h>
+#include <utils/List.h>
+
+#include <binder/IServiceManager.h>
+
+#include <media/MediaAnalyticsItem.h>
+// nope...#include <media/MediaAnalytics.h>
+
+namespace android {
+
+class IMediaAnalyticsService: public IInterface
+{
+public:
+    DECLARE_META_INTERFACE(MediaAnalyticsService);
+
+    // generate a unique sessionID to use across multiple requests
+    // 'unique' is within this device, since last reboot
+    virtual MediaAnalyticsItem::SessionID_t generateUniqueSessionID() = 0;
+
+    // submit the indicated record to the mediaanalytics service, where
+    // it will be merged (if appropriate) with incomplete records that
+    // share the same key and sessionid.
+    // 'forcenew' marks any matching incomplete record as complete before
+    // inserting this new record.
+    // returns the sessionID associated with that item.
+    // caller continues to own the passed item
+    virtual MediaAnalyticsItem::SessionID_t submit(MediaAnalyticsItem *item, bool forcenew) = 0;
+
+};
+
+// ----------------------------------------------------------------------------
+
+class BnMediaAnalyticsService: public BnInterface<IMediaAnalyticsService>
+{
+public:
+    virtual status_t    onTransact( uint32_t code,
+                                    const Parcel& data,
+                                    Parcel* reply,
+                                    uint32_t flags = 0);
+};
+
+}; // namespace android
+
+#endif // ANDROID_IMEDIASTATISTICSSERVICE_H
diff --git a/include/media/IMediaCodecList.h b/media/libmedia/include/IMediaCodecList.h
similarity index 100%
rename from include/media/IMediaCodecList.h
rename to media/libmedia/include/IMediaCodecList.h
diff --git a/media/libmedia/include/IMediaCodecService.h b/media/libmedia/include/IMediaCodecService.h
new file mode 100644
index 0000000..da3c5a03
--- /dev/null
+++ b/media/libmedia/include/IMediaCodecService.h
@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_IMEDIACODECSERVICE_H
+#define ANDROID_IMEDIACODECSERVICE_H
+
+#include <binder/IInterface.h>
+#include <binder/IMemory.h>
+#include <binder/Parcel.h>
+#include <media/IDataSource.h>
+#include <media/IOMX.h>
+
+namespace android {
+
+class IMediaCodecService: public IInterface
+{
+public:
+    DECLARE_META_INTERFACE(MediaCodecService);
+
+    virtual sp<IOMX> getOMX() = 0;
+};
+
+class BnMediaCodecService: public BnInterface<IMediaCodecService>
+{
+public:
+    virtual status_t    onTransact(uint32_t code, const Parcel& data, Parcel* reply,
+                                uint32_t flags = 0);
+};
+
+}   // namespace android
+
+#endif  // ANDROID_IMEDIACODECSERVICE_H
diff --git a/include/media/IMediaDeathNotifier.h b/media/libmedia/include/IMediaDeathNotifier.h
similarity index 100%
rename from include/media/IMediaDeathNotifier.h
rename to media/libmedia/include/IMediaDeathNotifier.h
diff --git a/include/media/IMediaDrmService.h b/media/libmedia/include/IMediaDrmService.h
similarity index 100%
rename from include/media/IMediaDrmService.h
rename to media/libmedia/include/IMediaDrmService.h
diff --git a/media/libmedia/include/IMediaExtractor.h b/media/libmedia/include/IMediaExtractor.h
new file mode 100644
index 0000000..cf1b9fb
--- /dev/null
+++ b/media/libmedia/include/IMediaExtractor.h
@@ -0,0 +1,94 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef IMEDIA_EXTRACTOR_BASE_H_
+
+#define IMEDIA_EXTRACTOR_BASE_H_
+
+#include <media/IMediaSource.h>
+#include <media/stagefright/DataSource.h>
+
+namespace android {
+
+class MetaData;
+namespace media {
+class ICas;
+};
+using namespace media;
+
+class IMediaExtractor : public IInterface {
+public:
+    DECLARE_META_INTERFACE(MediaExtractor);
+
+    virtual size_t countTracks() = 0;
+    virtual sp<IMediaSource> getTrack(size_t index) = 0;
+
+    enum GetTrackMetaDataFlags {
+        kIncludeExtensiveMetaData = 1
+    };
+    virtual sp<MetaData> getTrackMetaData(
+            size_t index, uint32_t flags = 0) = 0;
+
+    // Return container specific meta-data. The default implementation
+    // returns an empty metadata object.
+    virtual sp<MetaData> getMetaData() = 0;
+
+    virtual status_t getMetrics(Parcel *reply) = 0;
+
+    enum Flags {
+        CAN_SEEK_BACKWARD  = 1,  // the "seek 10secs back button"
+        CAN_SEEK_FORWARD   = 2,  // the "seek 10secs forward button"
+        CAN_PAUSE          = 4,
+        CAN_SEEK           = 8,  // the "seek bar"
+    };
+
+    // If subclasses do _not_ override this, the default is
+    // CAN_SEEK_BACKWARD | CAN_SEEK_FORWARD | CAN_SEEK | CAN_PAUSE
+    virtual uint32_t flags() const = 0;
+
+    // for DRM
+    virtual char* getDrmTrackInfo(size_t trackID, int *len)  = 0;
+
+    virtual status_t setMediaCas(const sp<ICas> &cas) = 0;
+
+    virtual void setUID(uid_t uid)  = 0;
+
+    virtual const char * name() = 0;
+};
+
+
+class BnMediaExtractor: public BnInterface<IMediaExtractor>
+{
+public:
+    virtual status_t    onTransact(uint32_t code, const Parcel& data, Parcel* reply,
+                                uint32_t flags = 0);
+};
+
+void registerMediaExtractor(
+        const sp<IMediaExtractor> &extractor,
+        const sp<DataSource> &source,
+        const char *mime);
+
+void registerMediaSource(
+        const sp<IMediaExtractor> &extractor,
+        const sp<IMediaSource> &source);
+
+status_t dumpExtractors(int fd, const Vector<String16>& args);
+
+
+}  // namespace android
+
+#endif  // IMEDIA_EXTRACTOR_BASE_H_
diff --git a/include/media/IMediaExtractorService.h b/media/libmedia/include/IMediaExtractorService.h
similarity index 100%
rename from include/media/IMediaExtractorService.h
rename to media/libmedia/include/IMediaExtractorService.h
diff --git a/include/media/IMediaHTTPConnection.h b/media/libmedia/include/IMediaHTTPConnection.h
similarity index 100%
rename from include/media/IMediaHTTPConnection.h
rename to media/libmedia/include/IMediaHTTPConnection.h
diff --git a/include/media/IMediaHTTPService.h b/media/libmedia/include/IMediaHTTPService.h
similarity index 100%
rename from include/media/IMediaHTTPService.h
rename to media/libmedia/include/IMediaHTTPService.h
diff --git a/media/libmedia/include/IMediaLogService.h b/media/libmedia/include/IMediaLogService.h
new file mode 100644
index 0000000..1f5777e
--- /dev/null
+++ b/media/libmedia/include/IMediaLogService.h
@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_IMEDIALOGSERVICE_H
+#define ANDROID_IMEDIALOGSERVICE_H
+
+#include <binder/IInterface.h>
+#include <binder/IMemory.h>
+#include <binder/Parcel.h>
+
+namespace android {
+
+class IMediaLogService: public IInterface
+{
+public:
+    DECLARE_META_INTERFACE(MediaLogService);
+
+    virtual void    registerWriter(const sp<IMemory>& shared, size_t size, const char *name) = 0;
+    virtual void    unregisterWriter(const sp<IMemory>& shared) = 0;
+
+};
+
+class BnMediaLogService: public BnInterface<IMediaLogService>
+{
+public:
+    virtual status_t    onTransact(uint32_t code, const Parcel& data, Parcel* reply,
+                                uint32_t flags = 0);
+};
+
+}   // namespace android
+
+#endif  // ANDROID_IMEDIALOGSERVICE_H
diff --git a/include/media/IMediaMetadataRetriever.h b/media/libmedia/include/IMediaMetadataRetriever.h
similarity index 100%
rename from include/media/IMediaMetadataRetriever.h
rename to media/libmedia/include/IMediaMetadataRetriever.h
diff --git a/media/libmedia/include/IMediaPlayer.h b/media/libmedia/include/IMediaPlayer.h
new file mode 100644
index 0000000..e5a98dd
--- /dev/null
+++ b/media/libmedia/include/IMediaPlayer.h
@@ -0,0 +1,148 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_IMEDIAPLAYER_H
+#define ANDROID_IMEDIAPLAYER_H
+
+#include <utils/RefBase.h>
+#include <binder/IInterface.h>
+#include <binder/Parcel.h>
+#include <utils/KeyedVector.h>
+#include <system/audio.h>
+
+#include <media/IMediaSource.h>
+#include <media/VolumeShaper.h>
+
+// Fwd decl to make sure everyone agrees that the scope of struct sockaddr_in is
+// global, and not in android::
+struct sockaddr_in;
+
+namespace android {
+
+class Parcel;
+class Surface;
+class IDataSource;
+struct IStreamSource;
+class IGraphicBufferProducer;
+struct IMediaHTTPService;
+struct AudioPlaybackRate;
+struct AVSyncSettings;
+struct BufferingSettings;
+
+typedef IMediaSource::ReadOptions::SeekMode MediaPlayerSeekMode;
+
+class IMediaPlayer: public IInterface
+{
+public:
+    DECLARE_META_INTERFACE(MediaPlayer);
+
+    virtual void            disconnect() = 0;
+
+    virtual status_t        setDataSource(
+            const sp<IMediaHTTPService> &httpService,
+            const char *url,
+            const KeyedVector<String8, String8>* headers) = 0;
+
+    virtual status_t        setDataSource(int fd, int64_t offset, int64_t length) = 0;
+    virtual status_t        setDataSource(const sp<IStreamSource>& source) = 0;
+    virtual status_t        setDataSource(const sp<IDataSource>& source) = 0;
+    virtual status_t        setVideoSurfaceTexture(
+                                    const sp<IGraphicBufferProducer>& bufferProducer) = 0;
+    virtual status_t        getDefaultBufferingSettings(
+                                    BufferingSettings* buffering /* nonnull */) = 0;
+    virtual status_t        setBufferingSettings(const BufferingSettings& buffering) = 0;
+    virtual status_t        prepareAsync() = 0;
+    virtual status_t        start() = 0;
+    virtual status_t        stop() = 0;
+    virtual status_t        pause() = 0;
+    virtual status_t        isPlaying(bool* state) = 0;
+    virtual status_t        setPlaybackSettings(const AudioPlaybackRate& rate) = 0;
+    virtual status_t        getPlaybackSettings(AudioPlaybackRate* rate /* nonnull */) = 0;
+    virtual status_t        setSyncSettings(const AVSyncSettings& sync, float videoFpsHint) = 0;
+    virtual status_t        getSyncSettings(AVSyncSettings* sync /* nonnull */,
+                                            float* videoFps /* nonnull */) = 0;
+    virtual status_t        seekTo(
+            int msec,
+            MediaPlayerSeekMode mode = MediaPlayerSeekMode::SEEK_PREVIOUS_SYNC) = 0;
+    virtual status_t        getCurrentPosition(int* msec) = 0;
+    virtual status_t        getDuration(int* msec) = 0;
+    virtual status_t        reset() = 0;
+    virtual status_t        setAudioStreamType(audio_stream_type_t type) = 0;
+    virtual status_t        setLooping(int loop) = 0;
+    virtual status_t        setVolume(float leftVolume, float rightVolume) = 0;
+    virtual status_t        setAuxEffectSendLevel(float level) = 0;
+    virtual status_t        attachAuxEffect(int effectId) = 0;
+    virtual status_t        setParameter(int key, const Parcel& request) = 0;
+    virtual status_t        getParameter(int key, Parcel* reply) = 0;
+    virtual status_t        setRetransmitEndpoint(const struct sockaddr_in* endpoint) = 0;
+    virtual status_t        getRetransmitEndpoint(struct sockaddr_in* endpoint) = 0;
+    virtual status_t        setNextPlayer(const sp<IMediaPlayer>& next) = 0;
+
+    virtual VolumeShaper::Status applyVolumeShaper(
+                                    const sp<VolumeShaper::Configuration>& configuration,
+                                    const sp<VolumeShaper::Operation>& operation) = 0;
+    virtual sp<VolumeShaper::State> getVolumeShaperState(int id) = 0;
+
+    // Modular DRM
+    virtual status_t        prepareDrm(const uint8_t uuid[16],
+                                    const Vector<uint8_t>& drmSessionId) = 0;
+    virtual status_t        releaseDrm() = 0;
+
+    // Invoke a generic method on the player by using opaque parcels
+    // for the request and reply.
+    // @param request Parcel that must start with the media player
+    // interface token.
+    // @param[out] reply Parcel to hold the reply data. Cannot be null.
+    // @return OK if the invocation was made successfully.
+    virtual status_t        invoke(const Parcel& request, Parcel *reply) = 0;
+
+    // Set a new metadata filter.
+    // @param filter A set of allow and drop rules serialized in a Parcel.
+    // @return OK if the invocation was made successfully.
+    virtual status_t        setMetadataFilter(const Parcel& filter) = 0;
+
+    // Retrieve a set of metadata.
+    // @param update_only Include only the metadata that have changed
+    //                    since the last invocation of getMetadata.
+    //                    The set is built using the unfiltered
+    //                    notifications the native player sent to the
+    //                    MediaPlayerService during that period of
+    //                    time. If false, all the metadatas are considered.
+    // @param apply_filter If true, once the metadata set has been built based
+    //                     on the value update_only, the current filter is
+    //                     applied.
+    // @param[out] metadata On exit contains a set (possibly empty) of metadata.
+    //                      Valid only if the call returned OK.
+    // @return OK if the invocation was made successfully.
+    virtual status_t        getMetadata(bool update_only,
+                                        bool apply_filter,
+                                        Parcel *metadata) = 0;
+};
+
+// ----------------------------------------------------------------------------
+
+class BnMediaPlayer: public BnInterface<IMediaPlayer>
+{
+public:
+    virtual status_t    onTransact( uint32_t code,
+                                    const Parcel& data,
+                                    Parcel* reply,
+                                    uint32_t flags = 0);
+};
+
+}; // namespace android
+
+#endif // ANDROID_IMEDIAPLAYER_H
diff --git a/include/media/IMediaPlayerClient.h b/media/libmedia/include/IMediaPlayerClient.h
similarity index 100%
rename from include/media/IMediaPlayerClient.h
rename to media/libmedia/include/IMediaPlayerClient.h
diff --git a/include/media/IMediaPlayerService.h b/media/libmedia/include/IMediaPlayerService.h
similarity index 100%
rename from include/media/IMediaPlayerService.h
rename to media/libmedia/include/IMediaPlayerService.h
diff --git a/media/libmedia/include/IMediaRecorder.h b/media/libmedia/include/IMediaRecorder.h
new file mode 100644
index 0000000..9d0341a
--- /dev/null
+++ b/media/libmedia/include/IMediaRecorder.h
@@ -0,0 +1,82 @@
+/*
+ **
+ ** Copyright 2008, The Android Open Source Project
+ **
+ ** Licensed under the Apache License, Version 2.0 (the "License");
+ ** you may not use this file except in compliance with the License.
+ ** You may obtain a copy of the License at
+ **
+ **     http://www.apache.org/licenses/LICENSE-2.0
+ **
+ ** Unless required by applicable law or agreed to in writing, software
+ ** distributed under the License is distributed on an "AS IS" BASIS,
+ ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ** See the License for the specific language governing permissions and
+ ** limitations under the License.
+ */
+
+#ifndef ANDROID_IMEDIARECORDER_H
+#define ANDROID_IMEDIARECORDER_H
+
+#include <binder/IInterface.h>
+
+namespace android {
+
+class Surface;
+namespace hardware {
+class ICamera;
+}
+class ICameraRecordingProxy;
+class IMediaRecorderClient;
+class IGraphicBufferProducer;
+struct PersistentSurface;
+
+class IMediaRecorder: public IInterface
+{
+public:
+    DECLARE_META_INTERFACE(MediaRecorder);
+
+    virtual status_t setCamera(const sp<hardware::ICamera>& camera,
+                               const sp<ICameraRecordingProxy>& proxy) = 0;
+    virtual status_t setPreviewSurface(const sp<IGraphicBufferProducer>& surface) = 0;
+    virtual status_t setVideoSource(int vs) = 0;
+    virtual status_t setAudioSource(int as) = 0;
+    virtual status_t setOutputFormat(int of) = 0;
+    virtual status_t setVideoEncoder(int ve) = 0;
+    virtual status_t setAudioEncoder(int ae) = 0;
+    virtual status_t setOutputFile(int fd) = 0;
+    virtual status_t setNextOutputFile(int fd) = 0;
+    virtual status_t setVideoSize(int width, int height) = 0;
+    virtual status_t setVideoFrameRate(int frames_per_second) = 0;
+    virtual status_t setParameters(const String8& params) = 0;
+    virtual status_t setListener(const sp<IMediaRecorderClient>& listener) = 0;
+    virtual status_t setClientName(const String16& clientName) = 0;
+    virtual status_t prepare() = 0;
+    virtual status_t getMaxAmplitude(int* max) = 0;
+    virtual status_t getMetrics(Parcel *reply) = 0;
+    virtual status_t start() = 0;
+    virtual status_t stop() = 0;
+    virtual status_t reset() = 0;
+    virtual status_t pause() = 0;
+    virtual status_t resume() = 0;
+    virtual status_t init() = 0;
+    virtual status_t close() = 0;
+    virtual status_t release() = 0;
+    virtual status_t setInputSurface(const sp<PersistentSurface>& surface) = 0;
+    virtual sp<IGraphicBufferProducer> querySurfaceMediaSource() = 0;
+};
+
+// ----------------------------------------------------------------------------
+
+class BnMediaRecorder: public BnInterface<IMediaRecorder>
+{
+public:
+    virtual status_t    onTransact( uint32_t code,
+                                    const Parcel& data,
+                                    Parcel* reply,
+                                    uint32_t flags = 0);
+};
+
+}; // namespace android
+
+#endif // ANDROID_IMEDIARECORDER_H
diff --git a/include/media/IMediaRecorderClient.h b/media/libmedia/include/IMediaRecorderClient.h
similarity index 100%
rename from include/media/IMediaRecorderClient.h
rename to media/libmedia/include/IMediaRecorderClient.h
diff --git a/include/media/IMediaSource.h b/media/libmedia/include/IMediaSource.h
similarity index 100%
rename from include/media/IMediaSource.h
rename to media/libmedia/include/IMediaSource.h
diff --git a/media/libmedia/include/IOMX.h b/media/libmedia/include/IOMX.h
new file mode 100644
index 0000000..b4fc04c
--- /dev/null
+++ b/media/libmedia/include/IOMX.h
@@ -0,0 +1,259 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_IOMX_H_
+
+#define ANDROID_IOMX_H_
+
+#include <binder/IInterface.h>
+#include <binder/HalToken.h>
+#include <utils/List.h>
+#include <utils/String8.h>
+#include <cutils/native_handle.h>
+
+#include <list>
+
+#include <media/hardware/MetadataBufferType.h>
+#include <android/hardware/media/omx/1.0/IOmxNode.h>
+
+#include <OMX_Core.h>
+#include <OMX_Video.h>
+
+namespace android {
+
+class IGraphicBufferProducer;
+class IGraphicBufferSource;
+class IMemory;
+class IOMXBufferSource;
+class IOMXNode;
+class IOMXObserver;
+class NativeHandle;
+class OMXBuffer;
+struct omx_message;
+
+using hardware::media::omx::V1_0::IOmxNode;
+
+class IOMX : public IInterface {
+public:
+    DECLARE_META_INTERFACE(OMX);
+
+    typedef uint32_t buffer_id;
+
+    enum {
+        kFenceTimeoutMs = 1000
+    };
+
+    enum PortMode {
+        kPortModePresetStart = 0,
+        kPortModePresetByteBuffer,
+        kPortModePresetANWBuffer,
+        kPortModePresetSecureBuffer,
+        kPortModePresetEnd,
+
+        kPortModeDynamicStart = 100,
+        kPortModeDynamicANWBuffer,      // uses metadata mode kMetadataBufferTypeANWBuffer
+                                        // or kMetadataBufferTypeGrallocSource
+        kPortModeDynamicNativeHandle,   // uses metadata mode kMetadataBufferTypeNativeHandleSource
+        kPortModeDynamicEnd,
+    };
+
+    struct ComponentInfo {
+        String8 mName;
+        List<String8> mRoles;
+    };
+    virtual status_t listNodes(List<ComponentInfo> *list) = 0;
+
+    virtual status_t allocateNode(
+            const char *name, const sp<IOMXObserver> &observer,
+            sp<IOMXNode> *omxNode) = 0;
+
+    virtual status_t createInputSurface(
+            sp<IGraphicBufferProducer> *bufferProducer,
+            sp<IGraphicBufferSource> *bufferSource) = 0;
+};
+
+class IOMXNode : public IInterface {
+public:
+    DECLARE_HYBRID_META_INTERFACE(OMXNode, IOmxNode);
+
+    typedef IOMX::buffer_id buffer_id;
+
+    virtual status_t freeNode() = 0;
+
+    virtual status_t sendCommand(
+            OMX_COMMANDTYPE cmd, OMX_S32 param) = 0;
+
+    virtual status_t getParameter(
+            OMX_INDEXTYPE index, void *params, size_t size) = 0;
+
+    virtual status_t setParameter(
+            OMX_INDEXTYPE index, const void *params, size_t size) = 0;
+
+    virtual status_t getConfig(
+            OMX_INDEXTYPE index, void *params, size_t size) = 0;
+
+    virtual status_t setConfig(
+            OMX_INDEXTYPE index, const void *params, size_t size) = 0;
+
+    virtual status_t setPortMode(
+            OMX_U32 port_index, IOMX::PortMode mode) = 0;
+
+    virtual status_t prepareForAdaptivePlayback(
+            OMX_U32 portIndex, OMX_BOOL enable,
+            OMX_U32 maxFrameWidth, OMX_U32 maxFrameHeight) = 0;
+
+    virtual status_t configureVideoTunnelMode(
+            OMX_U32 portIndex, OMX_BOOL tunneled,
+            OMX_U32 audioHwSync, native_handle_t **sidebandHandle) = 0;
+
+    virtual status_t getGraphicBufferUsage(
+            OMX_U32 port_index, OMX_U32* usage) = 0;
+
+    virtual status_t setInputSurface(
+            const sp<IOMXBufferSource> &bufferSource) = 0;
+
+    // Allocate an opaque buffer as a native handle. If component supports returning native
+    // handles, those are returned in *native_handle. Otherwise, the allocated buffer is
+    // returned in *buffer_data. This clearly only makes sense if the caller lives in the
+    // same process as the callee, i.e. is the media_server, as the returned "buffer_data"
+    // pointer is just that, a pointer into local address space.
+    virtual status_t allocateSecureBuffer(
+            OMX_U32 port_index, size_t size, buffer_id *buffer,
+            void **buffer_data, sp<NativeHandle> *native_handle) = 0;
+
+    // Instructs the component to use the buffer passed in via |omxBuf| on the
+    // specified port. Returns in |*buffer| the buffer id that the component
+    // assigns to this buffer. |omxBuf| must be one of:
+    // 1) OMXBuffer::sPreset for meta-mode,
+    // 2) type kBufferTypeANWBuffer for non-meta-graphic buffer mode,
+    // 3) type kBufferTypeSharedMem for bytebuffer mode.
+    virtual status_t useBuffer(
+            OMX_U32 port_index, const OMXBuffer &omxBuf, buffer_id *buffer) = 0;
+
+    // Frees the buffer on the specified port with buffer id |buffer|.
+    virtual status_t freeBuffer(
+            OMX_U32 port_index, buffer_id buffer) = 0;
+
+    // Calls OMX_FillBuffer on buffer. Passes |fenceFd| to component if it
+    // supports fences. Otherwise, it waits on |fenceFd| before calling
+    // OMX_FillBuffer. Takes ownership of |fenceFd| even if this call fails.
+    // If the port is in metadata mode, the buffer will be updated to point
+    // to the new buffer passed in via |omxBuf| before OMX_FillBuffer is called.
+    // Otherwise info in the |omxBuf| is not used.
+    virtual status_t fillBuffer(
+            buffer_id buffer, const OMXBuffer &omxBuf, int fenceFd = -1) = 0;
+
+    // Calls OMX_EmptyBuffer on buffer. Passes |fenceFd| to component if it
+    // supports fences. Otherwise, it waits on |fenceFd| before calling
+    // OMX_EmptyBuffer. Takes ownership of |fenceFd| even if this call fails.
+    // If the port is in metadata mode, the buffer will be updated to point
+    // to the new buffer passed in via |omxBuf| before OMX_EmptyBuffer is called.
+    virtual status_t emptyBuffer(
+            buffer_id buffer, const OMXBuffer &omxBuf,
+            OMX_U32 flags, OMX_TICKS timestamp, int fenceFd = -1) = 0;
+
+    virtual status_t getExtensionIndex(
+            const char *parameter_name,
+            OMX_INDEXTYPE *index) = 0;
+
+    virtual status_t dispatchMessage(const omx_message &msg) = 0;
+
+    // TODO: this is temporary, will be removed when quirks move to OMX side
+    virtual status_t setQuirks(OMX_U32 quirks) = 0;
+};
+
+struct omx_message {
+    enum {
+        EVENT,
+        EMPTY_BUFFER_DONE,
+        FILL_BUFFER_DONE,
+        FRAME_RENDERED,
+    } type;
+
+    int fenceFd; // used for EMPTY_BUFFER_DONE and FILL_BUFFER_DONE; client must close this
+
+    union {
+        // if type == EVENT
+        struct {
+            OMX_EVENTTYPE event;
+            OMX_U32 data1;
+            OMX_U32 data2;
+            OMX_U32 data3;
+            OMX_U32 data4;
+        } event_data;
+
+        // if type == EMPTY_BUFFER_DONE
+        struct {
+            IOMX::buffer_id buffer;
+        } buffer_data;
+
+        // if type == FILL_BUFFER_DONE
+        struct {
+            IOMX::buffer_id buffer;
+            OMX_U32 range_offset;
+            OMX_U32 range_length;
+            OMX_U32 flags;
+            OMX_TICKS timestamp;
+        } extended_buffer_data;
+
+        // if type == FRAME_RENDERED
+        struct {
+            OMX_TICKS timestamp;
+            OMX_S64 nanoTime;
+        } render_data;
+    } u;
+};
+
+class IOMXObserver : public IInterface {
+public:
+    DECLARE_META_INTERFACE(OMXObserver);
+
+    // Handle (list of) messages.
+    virtual void onMessages(const std::list<omx_message> &messages) = 0;
+};
+
+////////////////////////////////////////////////////////////////////////////////
+
+class BnOMX : public BnInterface<IOMX> {
+public:
+    virtual status_t onTransact(
+            uint32_t code, const Parcel &data, Parcel *reply,
+            uint32_t flags = 0);
+};
+
+class BnOMXNode : public BnInterface<IOMXNode> {
+public:
+    virtual status_t onTransact(
+            uint32_t code, const Parcel &data, Parcel *reply,
+            uint32_t flags = 0);
+
+protected:
+    // check if the codec is secure.
+    virtual bool isSecure() const {
+        return false;
+    }
+};
+
+class BnOMXObserver : public BnInterface<IOMXObserver> {
+public:
+    virtual status_t onTransact(
+            uint32_t code, const Parcel &data, Parcel *reply,
+            uint32_t flags = 0);
+};
+
+}  // namespace android
+
+#endif  // ANDROID_IOMX_H_
diff --git a/include/media/IRemoteDisplay.h b/media/libmedia/include/IRemoteDisplay.h
similarity index 100%
rename from include/media/IRemoteDisplay.h
rename to media/libmedia/include/IRemoteDisplay.h
diff --git a/include/media/IRemoteDisplayClient.h b/media/libmedia/include/IRemoteDisplayClient.h
similarity index 100%
rename from include/media/IRemoteDisplayClient.h
rename to media/libmedia/include/IRemoteDisplayClient.h
diff --git a/include/media/IResourceManagerClient.h b/media/libmedia/include/IResourceManagerClient.h
similarity index 100%
rename from include/media/IResourceManagerClient.h
rename to media/libmedia/include/IResourceManagerClient.h
diff --git a/include/media/IResourceManagerService.h b/media/libmedia/include/IResourceManagerService.h
similarity index 100%
rename from include/media/IResourceManagerService.h
rename to media/libmedia/include/IResourceManagerService.h
diff --git a/include/media/IStreamSource.h b/media/libmedia/include/IStreamSource.h
similarity index 100%
rename from include/media/IStreamSource.h
rename to media/libmedia/include/IStreamSource.h
diff --git a/include/media/JetPlayer.h b/media/libmedia/include/JetPlayer.h
similarity index 100%
rename from include/media/JetPlayer.h
rename to media/libmedia/include/JetPlayer.h
diff --git a/services/audioflinger/LinearMap.h b/media/libmedia/include/LinearMap.h
similarity index 100%
rename from services/audioflinger/LinearMap.h
rename to media/libmedia/include/LinearMap.h
diff --git a/media/libmedia/include/MediaAnalyticsItem.h b/media/libmedia/include/MediaAnalyticsItem.h
new file mode 100644
index 0000000..f050e7f
--- /dev/null
+++ b/media/libmedia/include/MediaAnalyticsItem.h
@@ -0,0 +1,239 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_MEDIA_MEDIAANALYTICSITEM_H
+#define ANDROID_MEDIA_MEDIAANALYTICSITEM_H
+
+#include <cutils/properties.h>
+#include <sys/types.h>
+#include <utils/Errors.h>
+#include <utils/KeyedVector.h>
+#include <utils/RefBase.h>
+#include <utils/StrongPointer.h>
+#include <utils/Timers.h>
+
+#include <media/stagefright/foundation/AString.h>
+
+namespace android {
+
+
+
+class IMediaAnalyticsService;
+
+// the class interface
+//
+
+class MediaAnalyticsItem {
+
+    friend class MediaAnalyticsService;
+    friend class IMediaAnalyticsService;
+    friend class MediaMetricsJNI;
+
+    public:
+
+            enum Type {
+                kTypeNone = 0,
+                kTypeInt32 = 1,
+                kTypeInt64 = 2,
+                kTypeDouble = 3,
+                kTypeCString = 4,
+                kTypeRate = 5,
+            };
+
+        // sessionid
+        // unique within device, within boot,
+        typedef int64_t SessionID_t;
+        static constexpr SessionID_t SessionIDInvalid = -1;
+        static constexpr SessionID_t SessionIDNone = 0;
+
+        // Key: the record descriminator
+        // values for the record discriminator
+        // values can be "component/component"
+        // basic values: "video", "audio", "drm"
+        // XXX: need to better define the format
+        typedef AString Key;
+        static const Key kKeyNone;              // ""
+        static const Key kKeyAny;               // "*"
+
+        // Attr: names for attributes within a record
+        // format "prop1" or "prop/subprop"
+        // XXX: need to better define the format
+        typedef const char *Attr;
+
+
+    public:
+
+        // access functions for the class
+        MediaAnalyticsItem();
+        MediaAnalyticsItem(Key);
+        ~MediaAnalyticsItem();
+
+        // so clients can send intermediate values to be overlaid later
+        MediaAnalyticsItem &setFinalized(bool);
+        bool getFinalized() const;
+
+        // SessionID ties multiple submissions for same key together
+        // so that if video "height" and "width" are known at one point
+        // and "framerate" is only known later, they can be be brought
+        // together.
+        MediaAnalyticsItem &setSessionID(SessionID_t);
+        MediaAnalyticsItem &clearSessionID();
+        SessionID_t getSessionID() const;
+        // generates and stores a new ID iff mSessionID == SessionIDNone
+        SessionID_t generateSessionID();
+
+        // reset all contents, discarding any extra data
+        void clear();
+        MediaAnalyticsItem *dup();
+
+        // set the key discriminator for the record.
+        // most often initialized as part of the constructor
+        MediaAnalyticsItem &setKey(MediaAnalyticsItem::Key);
+        MediaAnalyticsItem::Key getKey();
+
+        // # of attributes in the record
+        int32_t count() const;
+
+        // set values appropriately
+        void setInt32(Attr, int32_t value);
+        void setInt64(Attr, int64_t value);
+        void setDouble(Attr, double value);
+        void setRate(Attr, int64_t count, int64_t duration);
+        void setCString(Attr, const char *value);
+
+        // fused get/add/set; if attr wasn't there, it's a simple set.
+        // type-mismatch counts as "wasn't there".
+        void addInt32(Attr, int32_t value);
+        void addInt64(Attr, int64_t value);
+        void addDouble(Attr, double value);
+        void addRate(Attr, int64_t count, int64_t duration);
+
+        // find & extract values
+        // return indicates whether attr exists (and thus value filled in)
+        // NULL parameter value suppresses storage of value.
+        bool getInt32(Attr, int32_t *value);
+        bool getInt64(Attr, int64_t *value);
+        bool getDouble(Attr, double *value);
+        bool getRate(Attr, int64_t *count, int64_t *duration, double *rate);
+        // Caller owns the returned string
+        bool getCString(Attr, char **value);
+
+        // parameter indicates whether to close any existing open
+        // record with same key before establishing a new record
+        // caller retains ownership of 'this'.
+        bool selfrecord(bool);
+        bool selfrecord();
+
+        // remove indicated attributes and their values
+        // filterNot() could also be called keepOnly()
+        // return value is # attributes removed
+        // XXX: perhaps 'remove' instead of 'filter'
+        // XXX: filterNot would become 'keep'
+        int32_t filter(int count, Attr attrs[]);
+        int32_t filterNot(int count, Attr attrs[]);
+        int32_t filter(Attr attr);
+
+        // below here are used on server side or to talk to server
+        // clients need not worry about these.
+
+        // timestamp, pid, and uid only used on server side
+        // timestamp is in 'nanoseconds, unix time'
+        MediaAnalyticsItem &setTimestamp(nsecs_t);
+        nsecs_t getTimestamp() const;
+
+        MediaAnalyticsItem &setPid(pid_t);
+        pid_t getPid() const;
+
+        MediaAnalyticsItem &setUid(uid_t);
+        uid_t getUid() const;
+
+        // our serialization code for binder calls
+        int32_t writeToParcel(Parcel *);
+        int32_t readFromParcel(const Parcel&);
+
+        AString toString();
+
+        // are we collecting analytics data
+        static bool isEnabled();
+
+    protected:
+
+        // merge fields from arg into this
+        // with rules for first/last/add, etc
+        // XXX: document semantics and how they are indicated
+        // caller continues to own 'incoming'
+        bool merge(MediaAnalyticsItem *incoming);
+
+        // enabled 1, disabled 0
+        static const char * const EnabledProperty;
+        static const char * const EnabledPropertyPersist;
+        static const int   EnabledProperty_default;
+
+    private:
+
+        // to help validate that A doesn't mess with B's records
+        pid_t     mPid;
+        uid_t     mUid;
+
+        // let's reuse a binder connection
+        static sp<IMediaAnalyticsService> sAnalyticsService;
+        static sp<IMediaAnalyticsService> getInstance();
+
+        // tracking information
+        SessionID_t mSessionID;         // grouping similar records
+        nsecs_t mTimestamp;             // ns, system_time_monotonic
+
+        // will this record accept further updates
+        bool mFinalized;
+
+        Key mKey;
+
+        struct Prop {
+
+            Type mType;
+            const char *mName;
+            size_t mNameLen;    // the strlen(), doesn't include the null
+            union {
+                    int32_t int32Value;
+                    int64_t int64Value;
+                    double doubleValue;
+                    char *CStringValue;
+                    struct { int64_t count, duration; } rate;
+            } u;
+            void setName(const char *name, size_t len);
+        };
+
+        void initProp(Prop *item);
+        void clearProp(Prop *item);
+        void clearPropValue(Prop *item);
+        void copyProp(Prop *dst, const Prop *src);
+        enum {
+            kGrowProps = 10
+        };
+        void growProps(int increment = kGrowProps);
+        size_t findPropIndex(const char *name, size_t len);
+        Prop *findProp(const char *name);
+        Prop *allocateProp(const char *name);
+
+        size_t mPropCount;
+        size_t mPropSize;
+        Prop *mProps;
+
+};
+
+} // namespace android
+
+#endif
diff --git a/media/libmedia/include/MediaCodecBuffer.h b/media/libmedia/include/MediaCodecBuffer.h
new file mode 100644
index 0000000..501c00b
--- /dev/null
+++ b/media/libmedia/include/MediaCodecBuffer.h
@@ -0,0 +1,74 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef MEDIA_CODEC_BUFFER_H_
+
+#define MEDIA_CODEC_BUFFER_H_
+
+#include <utils/Errors.h>
+#include <utils/RefBase.h>
+#include <utils/StrongPointer.h>
+
+namespace android {
+
+struct ABuffer;
+struct AMessage;
+class MediaBufferBase;
+
+/**
+ * Buffers used by MediaCodec.
+ */
+class MediaCodecBuffer : public RefBase {
+public:
+    MediaCodecBuffer(const sp<AMessage> &format, const sp<ABuffer> &buffer);
+
+    /**
+     * MediaCodec will release all references to the buffer when it's done using
+     * it, so the destructor should return the buffer to the owner, such as OMX
+     * components, buffer allocators, surfaces, etc.
+     */
+    virtual ~MediaCodecBuffer() = default;
+
+    // ABuffer-like interface
+    uint8_t *base();
+    uint8_t *data();
+    size_t capacity() const;
+    size_t size() const;
+    size_t offset() const;
+    // Default implementation calls ABuffer::setRange() and returns OK.
+    virtual status_t setRange(size_t offset, size_t size);
+    // TODO: These can be removed if we finish replacing all MediaBuffer's.
+    MediaBufferBase *getMediaBufferBase();
+    void setMediaBufferBase(MediaBufferBase *mediaBuffer);
+
+    // TODO: Specify each field for meta/format.
+    sp<AMessage> meta();
+    sp<AMessage> format();
+
+    void setFormat(const sp<AMessage> &format);
+
+private:
+    MediaCodecBuffer() = delete;
+
+    const sp<AMessage> mMeta;
+    sp<AMessage> mFormat;
+    const sp<ABuffer> mBuffer;
+    MediaBufferBase *mMediaBufferBase;
+};
+
+}  // namespace android
+
+#endif  // MEDIA_CODEC_BUFFER_H_
diff --git a/include/media/MediaCodecInfo.h b/media/libmedia/include/MediaCodecInfo.h
similarity index 100%
rename from include/media/MediaCodecInfo.h
rename to media/libmedia/include/MediaCodecInfo.h
diff --git a/media/libmedia/include/MediaDefs.h b/media/libmedia/include/MediaDefs.h
new file mode 100644
index 0000000..7f17013
--- /dev/null
+++ b/media/libmedia/include/MediaDefs.h
@@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef MEDIA_DEFS_H_
+
+#define MEDIA_DEFS_H_
+
+namespace android {
+
+extern const char *MEDIA_MIMETYPE_IMAGE_JPEG;
+
+extern const char *MEDIA_MIMETYPE_VIDEO_VP8;
+extern const char *MEDIA_MIMETYPE_VIDEO_VP9;
+extern const char *MEDIA_MIMETYPE_VIDEO_AVC;
+extern const char *MEDIA_MIMETYPE_VIDEO_HEVC;
+extern const char *MEDIA_MIMETYPE_VIDEO_MPEG4;
+extern const char *MEDIA_MIMETYPE_VIDEO_H263;
+extern const char *MEDIA_MIMETYPE_VIDEO_MPEG2;
+extern const char *MEDIA_MIMETYPE_VIDEO_RAW;
+extern const char *MEDIA_MIMETYPE_VIDEO_DOLBY_VISION;
+extern const char *MEDIA_MIMETYPE_VIDEO_SCRAMBLED;
+
+extern const char *MEDIA_MIMETYPE_AUDIO_AMR_NB;
+extern const char *MEDIA_MIMETYPE_AUDIO_AMR_WB;
+extern const char *MEDIA_MIMETYPE_AUDIO_MPEG;           // layer III
+extern const char *MEDIA_MIMETYPE_AUDIO_MPEG_LAYER_I;
+extern const char *MEDIA_MIMETYPE_AUDIO_MPEG_LAYER_II;
+extern const char *MEDIA_MIMETYPE_AUDIO_MIDI;
+extern const char *MEDIA_MIMETYPE_AUDIO_AAC;
+extern const char *MEDIA_MIMETYPE_AUDIO_QCELP;
+extern const char *MEDIA_MIMETYPE_AUDIO_VORBIS;
+extern const char *MEDIA_MIMETYPE_AUDIO_OPUS;
+extern const char *MEDIA_MIMETYPE_AUDIO_G711_ALAW;
+extern const char *MEDIA_MIMETYPE_AUDIO_G711_MLAW;
+extern const char *MEDIA_MIMETYPE_AUDIO_RAW;
+extern const char *MEDIA_MIMETYPE_AUDIO_FLAC;
+extern const char *MEDIA_MIMETYPE_AUDIO_AAC_ADTS;
+extern const char *MEDIA_MIMETYPE_AUDIO_MSGSM;
+extern const char *MEDIA_MIMETYPE_AUDIO_AC3;
+extern const char *MEDIA_MIMETYPE_AUDIO_EAC3;
+extern const char *MEDIA_MIMETYPE_AUDIO_SCRAMBLED;
+
+extern const char *MEDIA_MIMETYPE_CONTAINER_MPEG4;
+extern const char *MEDIA_MIMETYPE_CONTAINER_WAV;
+extern const char *MEDIA_MIMETYPE_CONTAINER_OGG;
+extern const char *MEDIA_MIMETYPE_CONTAINER_MATROSKA;
+extern const char *MEDIA_MIMETYPE_CONTAINER_MPEG2TS;
+extern const char *MEDIA_MIMETYPE_CONTAINER_AVI;
+extern const char *MEDIA_MIMETYPE_CONTAINER_MPEG2PS;
+
+extern const char *MEDIA_MIMETYPE_TEXT_3GPP;
+extern const char *MEDIA_MIMETYPE_TEXT_SUBRIP;
+extern const char *MEDIA_MIMETYPE_TEXT_VTT;
+extern const char *MEDIA_MIMETYPE_TEXT_CEA_608;
+extern const char *MEDIA_MIMETYPE_TEXT_CEA_708;
+extern const char *MEDIA_MIMETYPE_DATA_TIMED_ID3;
+
+// These are values exported to JAVA API that need to be in sync with
+// frameworks/base/media/java/android/media/AudioFormat.java. Unfortunately,
+// they are not defined in frameworks/av, so defining them here.
+enum AudioEncoding {
+    kAudioEncodingPcm16bit = 2,
+    kAudioEncodingPcm8bit = 3,
+    kAudioEncodingPcmFloat = 4,
+};
+
+}  // namespace android
+
+#endif  // MEDIA_DEFS_H_
diff --git a/include/media/MediaMetadataRetrieverInterface.h b/media/libmedia/include/MediaMetadataRetrieverInterface.h
similarity index 100%
rename from include/media/MediaMetadataRetrieverInterface.h
rename to media/libmedia/include/MediaMetadataRetrieverInterface.h
diff --git a/include/media/MediaProfiles.h b/media/libmedia/include/MediaProfiles.h
similarity index 100%
rename from include/media/MediaProfiles.h
rename to media/libmedia/include/MediaProfiles.h
diff --git a/media/libmedia/include/MediaRecorderBase.h b/media/libmedia/include/MediaRecorderBase.h
new file mode 100644
index 0000000..0b0f916
--- /dev/null
+++ b/media/libmedia/include/MediaRecorderBase.h
@@ -0,0 +1,77 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef MEDIA_RECORDER_BASE_H_
+
+#define MEDIA_RECORDER_BASE_H_
+
+#include <media/mediarecorder.h>
+
+#include <system/audio.h>
+
+namespace android {
+
+class ICameraRecordingProxy;
+class IGraphicBufferProducer;
+struct PersistentSurface;
+
+struct MediaRecorderBase {
+    MediaRecorderBase(const String16 &opPackageName)
+        : mOpPackageName(opPackageName) {}
+    virtual ~MediaRecorderBase() {}
+
+    virtual status_t init() = 0;
+    virtual status_t setAudioSource(audio_source_t as) = 0;
+    virtual status_t setVideoSource(video_source vs) = 0;
+    virtual status_t setOutputFormat(output_format of) = 0;
+    virtual status_t setAudioEncoder(audio_encoder ae) = 0;
+    virtual status_t setVideoEncoder(video_encoder ve) = 0;
+    virtual status_t setVideoSize(int width, int height) = 0;
+    virtual status_t setVideoFrameRate(int frames_per_second) = 0;
+    virtual status_t setCamera(const sp<hardware::ICamera>& camera,
+                               const sp<ICameraRecordingProxy>& proxy) = 0;
+    virtual status_t setPreviewSurface(const sp<IGraphicBufferProducer>& surface) = 0;
+    virtual status_t setOutputFile(int fd) = 0;
+    virtual status_t setNextOutputFile(int fd) {return INVALID_OPERATION;}
+    virtual status_t setOutputFileAuxiliary(int /*fd*/) {return INVALID_OPERATION;}
+    virtual status_t setParameters(const String8& params) = 0;
+    virtual status_t setListener(const sp<IMediaRecorderClient>& listener) = 0;
+    virtual status_t setClientName(const String16& clientName) = 0;
+    virtual status_t prepare() = 0;
+    virtual status_t start() = 0;
+    virtual status_t stop() = 0;
+    virtual status_t pause() = 0;
+    virtual status_t resume() = 0;
+    virtual status_t close() = 0;
+    virtual status_t reset() = 0;
+    virtual status_t getMaxAmplitude(int *max) = 0;
+    virtual status_t getMetrics(Parcel *reply) = 0;
+    virtual status_t dump(int fd, const Vector<String16>& args) const = 0;
+    virtual status_t setInputSurface(const sp<PersistentSurface>& surface) = 0;
+    virtual sp<IGraphicBufferProducer> querySurfaceMediaSource() const = 0;
+
+
+protected:
+    String16 mOpPackageName;
+
+private:
+    MediaRecorderBase(const MediaRecorderBase &);
+    MediaRecorderBase &operator=(const MediaRecorderBase &);
+};
+
+}  // namespace android
+
+#endif  // MEDIA_RECORDER_BASE_H_
diff --git a/include/media/MediaResource.h b/media/libmedia/include/MediaResource.h
similarity index 100%
rename from include/media/MediaResource.h
rename to media/libmedia/include/MediaResource.h
diff --git a/include/media/MediaResourcePolicy.h b/media/libmedia/include/MediaResourcePolicy.h
similarity index 100%
rename from include/media/MediaResourcePolicy.h
rename to media/libmedia/include/MediaResourcePolicy.h
diff --git a/include/media/MemoryLeakTrackUtil.h b/media/libmedia/include/MemoryLeakTrackUtil.h
similarity index 100%
rename from include/media/MemoryLeakTrackUtil.h
rename to media/libmedia/include/MemoryLeakTrackUtil.h
diff --git a/include/media/Metadata.h b/media/libmedia/include/Metadata.h
similarity index 100%
rename from include/media/Metadata.h
rename to media/libmedia/include/Metadata.h
diff --git a/media/libmedia/include/MidiDeviceInfo.h b/media/libmedia/include/MidiDeviceInfo.h
new file mode 100644
index 0000000..5b4a241
--- /dev/null
+++ b/media/libmedia/include/MidiDeviceInfo.h
@@ -0,0 +1,81 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_MEDIA_MIDI_DEVICE_INFO_H
+#define ANDROID_MEDIA_MIDI_DEVICE_INFO_H
+
+#include <binder/Parcelable.h>
+#include <binder/PersistableBundle.h>
+#include <utils/String16.h>
+#include <utils/Vector.h>
+
+namespace android {
+namespace media {
+namespace midi {
+
+class MidiDeviceInfo : public Parcelable {
+public:
+    MidiDeviceInfo() = default;
+    virtual ~MidiDeviceInfo() = default;
+    MidiDeviceInfo(const MidiDeviceInfo& midiDeviceInfo) = default;
+
+    status_t writeToParcel(Parcel* parcel) const override;
+    status_t readFromParcel(const Parcel* parcel) override;
+
+    int getType() const { return mType; }
+    int getUid() const { return mId; }
+    bool isPrivate() const { return mIsPrivate; }
+    const Vector<String16>& getInputPortNames() const { return mInputPortNames; }
+    const Vector<String16>&  getOutputPortNames() const { return mOutputPortNames; }
+    String16 getProperty(const char* propertyName);
+
+    // The constants need to be kept in sync with MidiDeviceInfo.java
+    enum {
+        TYPE_USB = 1,
+        TYPE_VIRTUAL = 2,
+        TYPE_BLUETOOTH = 3,
+    };
+    static const char* const PROPERTY_NAME;
+    static const char* const PROPERTY_MANUFACTURER;
+    static const char* const PROPERTY_PRODUCT;
+    static const char* const PROPERTY_VERSION;
+    static const char* const PROPERTY_SERIAL_NUMBER;
+    static const char* const PROPERTY_ALSA_CARD;
+    static const char* const PROPERTY_ALSA_DEVICE;
+
+    friend bool operator==(const MidiDeviceInfo& lhs, const MidiDeviceInfo& rhs);
+    friend bool operator!=(const MidiDeviceInfo& lhs, const MidiDeviceInfo& rhs) {
+        return !(lhs == rhs);
+    }
+
+private:
+    status_t readStringVector(
+            const Parcel* parcel, Vector<String16> *vectorPtr, size_t defaultLength);
+    status_t writeStringVector(Parcel* parcel, const Vector<String16>& vector) const;
+
+    int32_t mType;
+    int32_t mId;
+    Vector<String16> mInputPortNames;
+    Vector<String16> mOutputPortNames;
+    os::PersistableBundle mProperties;
+    bool mIsPrivate;
+};
+
+}  // namespace midi
+}  // namespace media
+}  // namespace android
+
+#endif  // ANDROID_MEDIA_MIDI_DEVICE_INFO_H
diff --git a/include/media/MidiIoWrapper.h b/media/libmedia/include/MidiIoWrapper.h
similarity index 100%
rename from include/media/MidiIoWrapper.h
rename to media/libmedia/include/MidiIoWrapper.h
diff --git a/include/media/Modulo.h b/media/libmedia/include/Modulo.h
similarity index 100%
rename from include/media/Modulo.h
rename to media/libmedia/include/Modulo.h
diff --git a/media/libmedia/include/OMXBuffer.h b/media/libmedia/include/OMXBuffer.h
new file mode 100644
index 0000000..6f79182
--- /dev/null
+++ b/media/libmedia/include/OMXBuffer.h
@@ -0,0 +1,149 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef _OMXBUFFER_H_
+#define _OMXBUFFER_H_
+
+#include <cutils/native_handle.h>
+#include <media/IOMX.h>
+#include <system/window.h>
+#include <utils/StrongPointer.h>
+#include <hidl/HidlSupport.h>
+
+namespace android {
+
+class OMXBuffer;
+
+// This is needed temporarily for the OMX HIDL transition.
+namespace hardware { namespace media { namespace omx {
+namespace V1_0 {
+    struct CodecBuffer;
+namespace implementation {
+    inline bool wrapAs(::android::hardware::media::omx::V1_0::CodecBuffer* t,
+            ::android::OMXBuffer const& l);
+    inline bool convertTo(::android::OMXBuffer* l,
+            ::android::hardware::media::omx::V1_0::CodecBuffer const& t);
+}
+namespace utils {
+    inline bool wrapAs(::android::hardware::media::omx::V1_0::CodecBuffer* t,
+            ::android::OMXBuffer const& l);
+    inline bool convertTo(::android::OMXBuffer* l,
+            ::android::hardware::media::omx::V1_0::CodecBuffer const& t);
+}
+}}}}
+
+class GraphicBuffer;
+class IMemory;
+class MediaCodecBuffer;
+class NativeHandle;
+struct OMXNodeInstance;
+using hardware::hidl_memory;
+
+// TODO: After complete HIDL transition, this class would be replaced by
+// CodecBuffer.
+class OMXBuffer {
+public:
+    // sPreset is used in places where we are referring to a pre-registered
+    // buffer on a port. It has type kBufferTypePreset and mRangeLength of 0.
+    static OMXBuffer sPreset;
+
+    // Default constructor, constructs a buffer of type kBufferTypeInvalid.
+    OMXBuffer();
+
+    // Constructs a buffer of type kBufferTypePreset with mRangeOffset set to
+    // |codecBuffer|'s offset and mRangeLength set to |codecBuffer|'s size (or 0
+    // if |codecBuffer| is NULL).
+    OMXBuffer(const sp<MediaCodecBuffer> &codecBuffer);
+
+    // Constructs a buffer of type kBufferTypePreset with specified mRangeOffset
+    // and mRangeLength.
+    OMXBuffer(OMX_U32 rangeOffset, OMX_U32 rangeLength);
+
+    // Constructs a buffer of type kBufferTypeSharedMem.
+    OMXBuffer(const sp<IMemory> &mem);
+
+    // Constructs a buffer of type kBufferTypeANWBuffer.
+    OMXBuffer(const sp<GraphicBuffer> &gbuf);
+
+    // Constructs a buffer of type kBufferTypeNativeHandle.
+    OMXBuffer(const sp<NativeHandle> &handle);
+
+    // Constructs a buffer of type kBufferTypeHidlMemory.
+    OMXBuffer(const hidl_memory &hidlMemory);
+
+    // Parcelling/Un-parcelling.
+    status_t writeToParcel(Parcel *parcel) const;
+    status_t readFromParcel(const Parcel *parcel);
+
+    ~OMXBuffer();
+
+private:
+    friend struct OMXNodeInstance;
+
+    // This is needed temporarily for OMX HIDL transition.
+    friend inline bool (::android::hardware::media::omx::V1_0::implementation::
+            wrapAs)(::android::hardware::media::omx::V1_0::CodecBuffer* t,
+            OMXBuffer const& l);
+    friend inline bool (::android::hardware::media::omx::V1_0::implementation::
+            convertTo)(OMXBuffer* l,
+            ::android::hardware::media::omx::V1_0::CodecBuffer const& t);
+    friend inline bool (::android::hardware::media::omx::V1_0::utils::
+            wrapAs)(::android::hardware::media::omx::V1_0::CodecBuffer* t,
+            OMXBuffer const& l);
+    friend inline bool (::android::hardware::media::omx::V1_0::utils::
+            convertTo)(OMXBuffer* l,
+            ::android::hardware::media::omx::V1_0::CodecBuffer const& t);
+
+    enum BufferType {
+        kBufferTypeInvalid = 0,
+        kBufferTypePreset,
+        kBufferTypeSharedMem,
+        kBufferTypeANWBuffer, // Use only for non-Treble
+        kBufferTypeNativeHandle,
+        kBufferTypeHidlMemory // Mapped to CodecBuffer::Type::SHARED_MEM.
+    };
+
+    BufferType mBufferType;
+
+    // kBufferTypePreset
+    // If the port is operating in byte buffer mode, mRangeLength is the valid
+    // range length. Otherwise the range info should also be ignored.
+    OMX_U32 mRangeOffset;
+    OMX_U32 mRangeLength;
+
+    // kBufferTypeSharedMem
+    sp<IMemory> mMem;
+
+    // kBufferTypeANWBuffer
+    sp<GraphicBuffer> mGraphicBuffer;
+
+    // kBufferTypeNativeHandle
+    sp<NativeHandle> mNativeHandle;
+
+    // kBufferTypeHidlMemory
+    hidl_memory mHidlMemory;
+
+    // Move assignment
+    OMXBuffer &operator=(OMXBuffer&&);
+
+    // Deleted copy constructor and assignment.
+    OMXBuffer(const OMXBuffer&) = delete;
+    OMXBuffer& operator=(const OMXBuffer&) = delete;
+};
+
+}  // namespace android
+
+#endif  // _OMXBUFFER_H_
diff --git a/media/libmedia/include/OMXFenceParcelable.h b/media/libmedia/include/OMXFenceParcelable.h
new file mode 100644
index 0000000..2a8da87
--- /dev/null
+++ b/media/libmedia/include/OMXFenceParcelable.h
@@ -0,0 +1,98 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef _OMX_FENCE_PARCELABLE_
+#define _OMX_FENCE_PARCELABLE_
+
+#include <binder/Parcel.h>
+
+namespace android {
+
+struct OMXFenceParcelable;
+
+// This is needed temporarily for the OMX HIDL transition.
+namespace hardware {
+    struct hidl_handle;
+namespace media { namespace omx { namespace V1_0 {
+namespace implementation {
+    void wrapAs(::android::OMXFenceParcelable* l,
+            ::android::hardware::hidl_handle const& t);
+    bool convertTo(::android::OMXFenceParcelable* l,
+            ::android::hardware::hidl_handle const& t);
+}
+namespace utils {
+    void wrapAs(::android::OMXFenceParcelable* l,
+            ::android::hardware::hidl_handle const& t);
+    bool convertTo(::android::OMXFenceParcelable* l,
+            ::android::hardware::hidl_handle const& t);
+}
+}}}}
+
+struct OMXFenceParcelable : public Parcelable {
+    OMXFenceParcelable() : mFenceFd(-1) {}
+    OMXFenceParcelable(int fenceFd) : mFenceFd(fenceFd) {}
+
+    int get() const { return mFenceFd; }
+
+    status_t readFromParcel(const Parcel* parcel) override;
+    status_t writeToParcel(Parcel* parcel) const override;
+
+private:
+    // Disable copy ctor and operator=
+    OMXFenceParcelable(const OMXFenceParcelable &);
+    OMXFenceParcelable &operator=(const OMXFenceParcelable &);
+
+    int mFenceFd;
+
+    // This is needed temporarily for OMX HIDL transition.
+    friend void (::android::hardware::media::omx::V1_0::implementation::
+            wrapAs)(OMXFenceParcelable* l,
+            ::android::hardware::hidl_handle const& t);
+    friend bool (::android::hardware::media::omx::V1_0::implementation::
+            convertTo)(OMXFenceParcelable* l,
+            ::android::hardware::hidl_handle const& t);
+    friend void (::android::hardware::media::omx::V1_0::utils::
+            wrapAs)(OMXFenceParcelable* l,
+            ::android::hardware::hidl_handle const& t);
+    friend bool (::android::hardware::media::omx::V1_0::utils::
+            convertTo)(OMXFenceParcelable* l,
+            ::android::hardware::hidl_handle const& t);
+};
+
+inline status_t OMXFenceParcelable::readFromParcel(const Parcel* parcel) {
+    int32_t haveFence;
+    status_t err = parcel->readInt32(&haveFence);
+    if (err == OK && haveFence) {
+        int fd = ::dup(parcel->readFileDescriptor());
+        if (fd < 0) {
+            return fd;
+        }
+        mFenceFd = fd;
+    }
+    return err;
+}
+
+inline status_t OMXFenceParcelable::writeToParcel(Parcel* parcel) const {
+    status_t err = parcel->writeInt32(mFenceFd >= 0);
+    if (err == OK && mFenceFd >= 0) {
+        err = parcel->writeFileDescriptor(mFenceFd, true /* takeOwnership */);
+    }
+    return err;
+}
+
+} // namespace android
+
+#endif // _OMX_FENCE_PARCELABLE_
diff --git a/media/libmedia/include/PluginLoader.h b/media/libmedia/include/PluginLoader.h
new file mode 100644
index 0000000..a626e16
--- /dev/null
+++ b/media/libmedia/include/PluginLoader.h
@@ -0,0 +1,99 @@
+/**
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef PLUGIN_LOADER_H_
+#define PLUGIN_LOADER_H_
+
+#include "SharedLibrary.h"
+#include <utils/Log.h>
+#include <utils/String8.h>
+#include <utils/Vector.h>
+
+namespace android {
+
+template <class T>
+class PluginLoader {
+
+  public:
+    PluginLoader(const char *dir, const char *entry) {
+        /**
+         * scan all plugins in the plugin directory and add them to the
+         * factories list.
+         */
+        String8 pluginDir(dir);
+
+        DIR* pDir = opendir(pluginDir.string());
+        if (pDir == NULL) {
+            ALOGE("Failed to find plugin directory %s", pluginDir.string());
+        } else {
+            struct dirent* pEntry;
+            while ((pEntry = readdir(pDir))) {
+                String8 file(pEntry->d_name);
+                if (file.getPathExtension() == ".so") {
+                    String8 path = pluginDir + "/" + pEntry->d_name;
+                    T *plugin = loadOne(path, entry);
+                    if (plugin) {
+                        factories.push(plugin);
+                    }
+                }
+            }
+            closedir(pDir);
+        }
+    }
+
+    ~PluginLoader() {
+        for (size_t i = 0; i < factories.size(); i++) {
+            delete factories[i];
+        }
+    }
+
+    T *getFactory(size_t i) const {
+        return factories[i];
+    }
+
+    size_t factoryCount() const {return factories.size();}
+
+  private:
+    T* loadOne(const char *path, const char *entry) {
+        sp<SharedLibrary> library = new SharedLibrary(String8(path));
+        if (!library.get()) {
+            ALOGE("Failed to open plugin library %s: %s", path,
+                    library->lastError());
+        } else {
+            typedef T *(*CreateFactoryFunc)();
+            CreateFactoryFunc createFactoryFunc =
+                    (CreateFactoryFunc)library->lookup(entry);
+            if (createFactoryFunc) {
+                ALOGV("Found plugin factory entry %s in %s", entry, path);
+                libraries.push(library);
+                T* result = createFactoryFunc();
+                return  result;
+           }
+        }
+        return NULL;
+    }
+
+    Vector<T *> factories;
+    Vector<sp<SharedLibrary> > libraries;
+
+    PluginLoader(const PluginLoader &) = delete;
+    void operator=(const PluginLoader &) = delete;
+};
+
+} // namespace android
+
+#endif // PLUGIN_LOADER_H_
+
diff --git a/media/libmedia/include/RecordBufferConverter.h b/media/libmedia/include/RecordBufferConverter.h
new file mode 100644
index 0000000..2abc45e
--- /dev/null
+++ b/media/libmedia/include/RecordBufferConverter.h
@@ -0,0 +1,119 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_RECORD_BUFFER_CONVERTER_H
+#define ANDROID_RECORD_BUFFER_CONVERTER_H
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <media/AudioBufferProvider.h>
+#include <system/audio.h>
+
+class AudioResampler;
+class PassthruBufferProvider;
+
+namespace android {
+
+/* The RecordBufferConverter is used for format, channel, and sample rate
+ * conversion for a RecordTrack.
+ *
+ * RecordBufferConverter uses the convert() method rather than exposing a
+ * buffer provider interface; this is to save a memory copy.
+ *
+ * There are legacy conversion requirements for this converter, specifically
+ * due to mono handling, so be careful about modifying.
+ *
+ * Original source audioflinger/Threads.{h,cpp}
+ */
+class RecordBufferConverter
+{
+public:
+    RecordBufferConverter(
+            audio_channel_mask_t srcChannelMask, audio_format_t srcFormat,
+            uint32_t srcSampleRate,
+            audio_channel_mask_t dstChannelMask, audio_format_t dstFormat,
+            uint32_t dstSampleRate);
+
+    ~RecordBufferConverter();
+
+    /* Converts input data from an AudioBufferProvider by format, channelMask,
+     * and sampleRate to a destination buffer.
+     *
+     * Parameters
+     *      dst:  buffer to place the converted data.
+     * provider:  buffer provider to obtain source data.
+     *   frames:  number of frames to convert
+     *
+     * Returns the number of frames converted.
+     */
+    size_t convert(void *dst, AudioBufferProvider *provider, size_t frames);
+
+    // returns NO_ERROR if constructor was successful
+    status_t initCheck() const {
+        // mSrcChannelMask set on successful updateParameters
+        return mSrcChannelMask != AUDIO_CHANNEL_INVALID ? NO_ERROR : NO_INIT;
+    }
+
+    // allows dynamic reconfigure of all parameters
+    status_t updateParameters(
+            audio_channel_mask_t srcChannelMask, audio_format_t srcFormat,
+            uint32_t srcSampleRate,
+            audio_channel_mask_t dstChannelMask, audio_format_t dstFormat,
+            uint32_t dstSampleRate);
+
+    // called to reset resampler buffers on record track discontinuity
+    void reset();
+
+private:
+    // format conversion when not using resampler
+    void convertNoResampler(void *dst, const void *src, size_t frames);
+
+    // format conversion when using resampler; modifies src in-place
+    void convertResampler(void *dst, /*not-a-const*/ void *src, size_t frames);
+
+    // user provided information
+    audio_channel_mask_t mSrcChannelMask;
+    audio_format_t       mSrcFormat;
+    uint32_t             mSrcSampleRate;
+    audio_channel_mask_t mDstChannelMask;
+    audio_format_t       mDstFormat;
+    uint32_t             mDstSampleRate;
+
+    // derived information
+    uint32_t             mSrcChannelCount;
+    uint32_t             mDstChannelCount;
+    size_t               mDstFrameSize;
+
+    // format conversion buffer
+    void                *mBuf;
+    size_t               mBufFrames;
+    size_t               mBufFrameSize;
+
+    // resampler info
+    AudioResampler      *mResampler;
+
+    bool                 mIsLegacyDownmix;  // legacy stereo to mono conversion needed
+    bool                 mIsLegacyUpmix;    // legacy mono to stereo conversion needed
+    bool                 mRequiresFloat;    // data processing requires float (e.g. resampler)
+    PassthruBufferProvider *mInputConverterProvider;    // converts input to float
+    int8_t               mIdxAry[sizeof(uint32_t) * 8]; // used for channel mask conversion
+};
+
+// ----------------------------------------------------------------------------
+} // namespace android
+
+#endif // ANDROID_RECORD_BUFFER_CONVERTER_H
diff --git a/include/media/RingBuffer.h b/media/libmedia/include/RingBuffer.h
similarity index 100%
rename from include/media/RingBuffer.h
rename to media/libmedia/include/RingBuffer.h
diff --git a/include/media/SharedLibrary.h b/media/libmedia/include/SharedLibrary.h
similarity index 100%
rename from include/media/SharedLibrary.h
rename to media/libmedia/include/SharedLibrary.h
diff --git a/include/media/SingleStateQueue.h b/media/libmedia/include/SingleStateQueue.h
similarity index 100%
rename from include/media/SingleStateQueue.h
rename to media/libmedia/include/SingleStateQueue.h
diff --git a/include/media/StringArray.h b/media/libmedia/include/StringArray.h
similarity index 100%
rename from include/media/StringArray.h
rename to media/libmedia/include/StringArray.h
diff --git a/media/libmedia/include/TypeConverter.h b/media/libmedia/include/TypeConverter.h
new file mode 100644
index 0000000..e262eef
--- /dev/null
+++ b/media/libmedia/include/TypeConverter.h
@@ -0,0 +1,257 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_TYPE_CONVERTER_H_
+#define ANDROID_TYPE_CONVERTER_H_
+
+#include <string>
+#include <string.h>
+
+#include <system/audio.h>
+#include <utils/Log.h>
+#include <utils/Vector.h>
+#include <utils/SortedVector.h>
+
+#include "convert.h"
+#include "AudioParameter.h"
+
+namespace android {
+
+struct SampleRateTraits
+{
+    typedef uint32_t Type;
+    typedef SortedVector<Type> Collection;
+};
+struct DeviceTraits
+{
+    typedef audio_devices_t Type;
+    typedef Vector<Type> Collection;
+};
+struct OutputDeviceTraits : public DeviceTraits {};
+struct InputDeviceTraits : public DeviceTraits {};
+struct OutputFlagTraits
+{
+    typedef audio_output_flags_t Type;
+    typedef Vector<Type> Collection;
+};
+struct InputFlagTraits
+{
+    typedef audio_input_flags_t Type;
+    typedef Vector<Type> Collection;
+};
+struct FormatTraits
+{
+    typedef audio_format_t Type;
+    typedef Vector<Type> Collection;
+};
+struct ChannelTraits
+{
+    typedef audio_channel_mask_t Type;
+    typedef SortedVector<Type> Collection;
+};
+struct OutputChannelTraits : public ChannelTraits {};
+struct InputChannelTraits : public ChannelTraits {};
+struct ChannelIndexTraits : public ChannelTraits {};
+struct GainModeTraits
+{
+    typedef audio_gain_mode_t Type;
+    typedef Vector<Type> Collection;
+};
+struct StreamTraits
+{
+    typedef audio_stream_type_t Type;
+    typedef Vector<Type> Collection;
+};
+struct AudioModeTraits
+{
+    typedef audio_mode_t Type;
+    typedef Vector<Type> Collection;
+};
+struct UsageTraits
+{
+    typedef audio_usage_t Type;
+    typedef Vector<Type> Collection;
+};
+struct SourceTraits
+{
+    typedef audio_source_t Type;
+    typedef Vector<Type> Collection;
+};
+template <typename T>
+struct DefaultTraits
+{
+    typedef T Type;
+    typedef Vector<Type> Collection;
+};
+
+template <class Traits>
+static void collectionFromString(const std::string &str, typename Traits::Collection &collection,
+                                 const char *del = AudioParameter::valueListSeparator)
+{
+    char *literal = strdup(str.c_str());
+    for (const char *cstr = strtok(literal, del); cstr != NULL; cstr = strtok(NULL, del)) {
+        typename Traits::Type value;
+        if (utilities::convertTo<std::string, typename Traits::Type >(cstr, value)) {
+            collection.add(value);
+        }
+    }
+    free(literal);
+}
+
+template <class Traits>
+class TypeConverter
+{
+public:
+    static bool toString(const typename Traits::Type &value, std::string &str);
+
+    static bool fromString(const std::string &str, typename Traits::Type &result);
+
+    static void collectionFromString(const std::string &str,
+                                     typename Traits::Collection &collection,
+                                     const char *del = AudioParameter::valueListSeparator);
+
+    static uint32_t maskFromString(
+            const std::string &str, const char *del = AudioParameter::valueListSeparator);
+
+    static void maskToString(
+            uint32_t mask, std::string &str, const char *del = AudioParameter::valueListSeparator);
+
+protected:
+    struct Table {
+        const char *literal;
+        typename Traits::Type value;
+    };
+
+    static const Table mTable[];
+};
+
+template <class Traits>
+inline bool TypeConverter<Traits>::toString(const typename Traits::Type &value, std::string &str)
+{
+    for (size_t i = 0; mTable[i].literal; i++) {
+        if (mTable[i].value == value) {
+            str = mTable[i].literal;
+            return true;
+        }
+    }
+    char result[64];
+    snprintf(result, sizeof(result), "Unknown enum value %d", value);
+    str = result;
+    return false;
+}
+
+template <class Traits>
+inline bool TypeConverter<Traits>::fromString(const std::string &str, typename Traits::Type &result)
+{
+    for (size_t i = 0; mTable[i].literal; i++) {
+        if (strcmp(mTable[i].literal, str.c_str()) == 0) {
+            ALOGV("stringToEnum() found %s", mTable[i].literal);
+            result = mTable[i].value;
+            return true;
+        }
+    }
+    return false;
+}
+
+template <class Traits>
+inline void TypeConverter<Traits>::collectionFromString(const std::string &str,
+        typename Traits::Collection &collection,
+        const char *del)
+{
+    char *literal = strdup(str.c_str());
+
+    for (const char *cstr = strtok(literal, del); cstr != NULL; cstr = strtok(NULL, del)) {
+        typename Traits::Type value;
+        if (fromString(cstr, value)) {
+            collection.add(value);
+        }
+    }
+    free(literal);
+}
+
+template <class Traits>
+inline uint32_t TypeConverter<Traits>::maskFromString(const std::string &str, const char *del)
+{
+    char *literal = strdup(str.c_str());
+    uint32_t value = 0;
+    for (const char *cstr = strtok(literal, del); cstr != NULL; cstr = strtok(NULL, del)) {
+        typename Traits::Type type;
+        if (fromString(cstr, type)) {
+            value |= static_cast<uint32_t>(type);
+        }
+    }
+    free(literal);
+    return value;
+}
+
+template <class Traits>
+inline void TypeConverter<Traits>::maskToString(uint32_t mask, std::string &str, const char *del)
+{
+    if (mask != 0) {
+        bool first_flag = true;
+        for (size_t i = 0; mTable[i].literal; i++) {
+            if (mTable[i].value != 0 && (mask & mTable[i].value) == mTable[i].value) {
+                if (!first_flag) str += del;
+                first_flag = false;
+                str += mTable[i].literal;
+            }
+        }
+    } else {
+        toString(static_cast<typename Traits::Type>(0), str);
+    }
+}
+
+typedef TypeConverter<OutputDeviceTraits> OutputDeviceConverter;
+typedef TypeConverter<InputDeviceTraits> InputDeviceConverter;
+typedef TypeConverter<OutputFlagTraits> OutputFlagConverter;
+typedef TypeConverter<InputFlagTraits> InputFlagConverter;
+typedef TypeConverter<FormatTraits> FormatConverter;
+typedef TypeConverter<OutputChannelTraits> OutputChannelConverter;
+typedef TypeConverter<InputChannelTraits> InputChannelConverter;
+typedef TypeConverter<ChannelIndexTraits> ChannelIndexConverter;
+typedef TypeConverter<GainModeTraits> GainModeConverter;
+typedef TypeConverter<StreamTraits> StreamTypeConverter;
+typedef TypeConverter<AudioModeTraits> AudioModeConverter;
+typedef TypeConverter<UsageTraits> UsageTypeConverter;
+typedef TypeConverter<SourceTraits> SourceTypeConverter;
+
+bool deviceFromString(const std::string& literalDevice, audio_devices_t& device);
+
+bool deviceToString(audio_devices_t device, std::string& literalDevice);
+
+SampleRateTraits::Collection samplingRatesFromString(
+        const std::string &samplingRates, const char *del = AudioParameter::valueListSeparator);
+
+FormatTraits::Collection formatsFromString(
+        const std::string &formats, const char *del = AudioParameter::valueListSeparator);
+
+audio_format_t formatFromString(
+        const std::string &literalFormat, audio_format_t defaultFormat = AUDIO_FORMAT_DEFAULT);
+
+audio_channel_mask_t channelMaskFromString(const std::string &literalChannels);
+
+ChannelTraits::Collection channelMasksFromString(
+        const std::string &channels, const char *del = AudioParameter::valueListSeparator);
+
+InputChannelTraits::Collection inputChannelMasksFromString(
+        const std::string &inChannels, const char *del = AudioParameter::valueListSeparator);
+
+OutputChannelTraits::Collection outputChannelMasksFromString(
+        const std::string &outChannels, const char *del = AudioParameter::valueListSeparator);
+
+}; // namespace android
+
+#endif  /*ANDROID_TYPE_CONVERTER_H_*/
diff --git a/media/libmedia/include/Visualizer.h b/media/libmedia/include/Visualizer.h
new file mode 100644
index 0000000..f8f4f50
--- /dev/null
+++ b/media/libmedia/include/Visualizer.h
@@ -0,0 +1,178 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_MEDIA_VISUALIZER_H
+#define ANDROID_MEDIA_VISUALIZER_H
+
+#include <media/AudioEffect.h>
+#include <system/audio_effects/effect_visualizer.h>
+#include <utils/Thread.h>
+
+/**
+ * The Visualizer class enables application to retrieve part of the currently playing audio for
+ * visualization purpose. It is not an audio recording interface and only returns partial and low
+ * quality audio content. However, to protect privacy of certain audio data (e.g voice mail) the use
+ * of the visualizer requires the permission android.permission.RECORD_AUDIO.
+ * The audio session ID passed to the constructor indicates which audio content should be
+ * visualized:
+ * - If the session is 0, the audio output mix is visualized
+ * - If the session is not 0, the audio from a particular MediaPlayer or AudioTrack
+ *   using this audio session is visualized
+ * Two types of representation of audio content can be captured:
+ * - Waveform data: consecutive 8-bit (unsigned) mono samples by using the getWaveForm() method
+ * - Frequency data: 8-bit magnitude FFT by using the getFft() method
+ *
+ * The length of the capture can be retrieved or specified by calling respectively
+ * getCaptureSize() and setCaptureSize() methods. Note that the size of the FFT
+ * is half of the specified capture size but both sides of the spectrum are returned yielding in a
+ * number of bytes equal to the capture size. The capture size must be a power of 2 in the range
+ * returned by getMinCaptureSize() and getMaxCaptureSize().
+ * In addition to the polling capture mode, a callback mode is also available by installing a
+ * callback function by use of the setCaptureCallBack() method. The rate at which the callback
+ * is called as well as the type of data returned is specified.
+ * Before capturing data, the Visualizer must be enabled by calling the setEnabled() method.
+ * When data capture is not needed any more, the Visualizer should be disabled.
+ */
+
+
+namespace android {
+
+// ----------------------------------------------------------------------------
+
+class Visualizer: public AudioEffect {
+public:
+
+    enum callback_flags {
+        CAPTURE_WAVEFORM = 0x00000001,  // capture callback returns a PCM wave form
+        CAPTURE_FFT = 0x00000002,       // apture callback returns a frequency representation
+        CAPTURE_CALL_JAVA = 0x00000004  // the callback thread can call java
+    };
+
+
+    /* Constructor.
+     * See AudioEffect constructor for details on parameters.
+     */
+                        Visualizer(const String16& opPackageName,
+                                   int32_t priority = 0,
+                                   effect_callback_t cbf = NULL,
+                                   void* user = NULL,
+                                   audio_session_t sessionId = AUDIO_SESSION_OUTPUT_MIX);
+
+                        ~Visualizer();
+
+    virtual status_t    setEnabled(bool enabled);
+
+    // maximum capture size in samples
+    static uint32_t getMaxCaptureSize() { return VISUALIZER_CAPTURE_SIZE_MAX; }
+    // minimum capture size in samples
+    static uint32_t getMinCaptureSize() { return VISUALIZER_CAPTURE_SIZE_MIN; }
+    // maximum capture rate in millihertz
+    static uint32_t getMaxCaptureRate() { return CAPTURE_RATE_MAX; }
+
+    // callback used to return periodic PCM or FFT captures to the application. Either one or both
+    // types of data are returned (PCM and FFT) according to flags indicated when installing the
+    // callback. When a type of data is not present, the corresponding size (waveformSize or
+    // fftSize) is 0.
+    typedef void (*capture_cbk_t)(void* user,
+                                    uint32_t waveformSize,
+                                    uint8_t *waveform,
+                                    uint32_t fftSize,
+                                    uint8_t *fft,
+                                    uint32_t samplingrate);
+
+    // install a callback to receive periodic captures. The capture rate is specified in milliHertz
+    // and the capture format is according to flags  (see callback_flags).
+    status_t setCaptureCallBack(capture_cbk_t cbk, void* user, uint32_t flags, uint32_t rate);
+
+    // set the capture size capture size must be a power of two in the range
+    // [VISUALIZER_CAPTURE_SIZE_MAX. VISUALIZER_CAPTURE_SIZE_MIN]
+    // must be called when the visualizer is not enabled
+    status_t setCaptureSize(uint32_t size);
+    uint32_t getCaptureSize() { return mCaptureSize; }
+
+    // returns the capture rate indicated when installing the callback
+    uint32_t getCaptureRate() { return mCaptureRate; }
+
+    // returns the sampling rate of the audio being captured
+    uint32_t getSamplingRate() { return mSampleRate; }
+
+    // set the way volume affects the captured data
+    // mode must one of VISUALIZER_SCALING_MODE_NORMALIZED,
+    //  VISUALIZER_SCALING_MODE_AS_PLAYED
+    status_t setScalingMode(uint32_t mode);
+    uint32_t getScalingMode() { return mScalingMode; }
+
+    // set which measurements are done on the audio buffers processed by the effect.
+    // valid measurements (mask): MEASUREMENT_MODE_PEAK_RMS
+    status_t setMeasurementMode(uint32_t mode);
+    uint32_t getMeasurementMode() { return mMeasurementMode; }
+
+    // return a set of int32_t measurements
+    status_t getIntMeasurements(uint32_t type, uint32_t number, int32_t *measurements);
+
+    // return a capture in PCM 8 bit unsigned format. The size of the capture is equal to
+    // getCaptureSize()
+    status_t getWaveForm(uint8_t *waveform);
+
+    // return a capture in FFT 8 bit signed format. The size of the capture is equal to
+    // getCaptureSize() but the length of the FFT is half of the size (both parts of the spectrum
+    // are returned
+    status_t getFft(uint8_t *fft);
+
+protected:
+    // from IEffectClient
+    virtual void controlStatusChanged(bool controlGranted);
+
+private:
+
+    static const uint32_t CAPTURE_RATE_MAX = 20000;
+    static const uint32_t CAPTURE_RATE_DEF = 10000;
+    static const uint32_t CAPTURE_SIZE_DEF = VISUALIZER_CAPTURE_SIZE_MAX;
+
+    /* internal class to handle the callback */
+    class CaptureThread : public Thread
+    {
+    public:
+        CaptureThread(Visualizer& receiver, uint32_t captureRate, bool bCanCallJava = false);
+
+    private:
+        friend class Visualizer;
+        virtual bool        threadLoop();
+        Visualizer& mReceiver;
+        Mutex       mLock;
+        uint32_t mSleepTimeUs;
+    };
+
+    status_t doFft(uint8_t *fft, uint8_t *waveform);
+    void periodicCapture();
+    uint32_t initCaptureSize();
+
+    Mutex mCaptureLock;
+    uint32_t mCaptureRate;
+    uint32_t mCaptureSize;
+    uint32_t mSampleRate;
+    uint32_t mScalingMode;
+    uint32_t mMeasurementMode;
+    capture_cbk_t mCaptureCallBack;
+    void *mCaptureCbkUser;
+    sp<CaptureThread> mCaptureThread;
+    uint32_t mCaptureFlags;
+};
+
+
+}; // namespace android
+
+#endif // ANDROID_MEDIA_VISUALIZER_H
diff --git a/services/audiopolicy/utilities/convert/convert.h b/media/libmedia/include/convert.h
similarity index 100%
rename from services/audiopolicy/utilities/convert/convert.h
rename to media/libmedia/include/convert.h
diff --git a/include/media/mediametadataretriever.h b/media/libmedia/include/mediametadataretriever.h
similarity index 100%
rename from include/media/mediametadataretriever.h
rename to media/libmedia/include/mediametadataretriever.h
diff --git a/media/libmedia/include/mediaplayer.h b/media/libmedia/include/mediaplayer.h
new file mode 100644
index 0000000..18d69a7
--- /dev/null
+++ b/media/libmedia/include/mediaplayer.h
@@ -0,0 +1,313 @@
+/*
+ * Copyright (C) 2007 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_MEDIAPLAYER_H
+#define ANDROID_MEDIAPLAYER_H
+
+#include <arpa/inet.h>
+
+#include <binder/IMemory.h>
+
+#include <media/AudioResamplerPublic.h>
+#include <media/BufferingSettings.h>
+#include <media/IMediaPlayerClient.h>
+#include <media/IMediaPlayer.h>
+#include <media/IMediaDeathNotifier.h>
+#include <media/IStreamSource.h>
+
+#include <utils/KeyedVector.h>
+#include <utils/String8.h>
+
+struct ANativeWindow;
+
+namespace android {
+
+struct AVSyncSettings;
+class IGraphicBufferProducer;
+class Surface;
+
+enum media_event_type {
+    MEDIA_NOP               = 0, // interface test message
+    MEDIA_PREPARED          = 1,
+    MEDIA_PLAYBACK_COMPLETE = 2,
+    MEDIA_BUFFERING_UPDATE  = 3,
+    MEDIA_SEEK_COMPLETE     = 4,
+    MEDIA_SET_VIDEO_SIZE    = 5,
+    MEDIA_STARTED           = 6,
+    MEDIA_PAUSED            = 7,
+    MEDIA_STOPPED           = 8,
+    MEDIA_SKIPPED           = 9,
+    MEDIA_TIMED_TEXT        = 99,
+    MEDIA_ERROR             = 100,
+    MEDIA_INFO              = 200,
+    MEDIA_SUBTITLE_DATA     = 201,
+    MEDIA_META_DATA         = 202,
+    MEDIA_DRM_INFO          = 210,
+};
+
+// Generic error codes for the media player framework.  Errors are fatal, the
+// playback must abort.
+//
+// Errors are communicated back to the client using the
+// MediaPlayerListener::notify method defined below.
+// In this situation, 'notify' is invoked with the following:
+//   'msg' is set to MEDIA_ERROR.
+//   'ext1' should be a value from the enum media_error_type.
+//   'ext2' contains an implementation dependant error code to provide
+//          more details. Should default to 0 when not used.
+//
+// The codes are distributed as follow:
+//   0xx: Reserved
+//   1xx: Android Player errors. Something went wrong inside the MediaPlayer.
+//   2xx: Media errors (e.g Codec not supported). There is a problem with the
+//        media itself.
+//   3xx: Runtime errors. Some extraordinary condition arose making the playback
+//        impossible.
+//
+enum media_error_type {
+    // 0xx
+    MEDIA_ERROR_UNKNOWN = 1,
+    // 1xx
+    MEDIA_ERROR_SERVER_DIED = 100,
+    // 2xx
+    MEDIA_ERROR_NOT_VALID_FOR_PROGRESSIVE_PLAYBACK = 200,
+    // 3xx
+};
+
+
+// Info and warning codes for the media player framework.  These are non fatal,
+// the playback is going on but there might be some user visible issues.
+//
+// Info and warning messages are communicated back to the client using the
+// MediaPlayerListener::notify method defined below.  In this situation,
+// 'notify' is invoked with the following:
+//   'msg' is set to MEDIA_INFO.
+//   'ext1' should be a value from the enum media_info_type.
+//   'ext2' contains an implementation dependant info code to provide
+//          more details. Should default to 0 when not used.
+//
+// The codes are distributed as follow:
+//   0xx: Reserved
+//   7xx: Android Player info/warning (e.g player lagging behind.)
+//   8xx: Media info/warning (e.g media badly interleaved.)
+//
+enum media_info_type {
+    // 0xx
+    MEDIA_INFO_UNKNOWN = 1,
+    // The player was started because it was used as the next player for another
+    // player, which just completed playback
+    MEDIA_INFO_STARTED_AS_NEXT = 2,
+    // The player just pushed the very first video frame for rendering
+    MEDIA_INFO_RENDERING_START = 3,
+    // 7xx
+    // The video is too complex for the decoder: it can't decode frames fast
+    // enough. Possibly only the audio plays fine at this stage.
+    MEDIA_INFO_VIDEO_TRACK_LAGGING = 700,
+    // MediaPlayer is temporarily pausing playback internally in order to
+    // buffer more data.
+    MEDIA_INFO_BUFFERING_START = 701,
+    // MediaPlayer is resuming playback after filling buffers.
+    MEDIA_INFO_BUFFERING_END = 702,
+    // Bandwidth in recent past
+    MEDIA_INFO_NETWORK_BANDWIDTH = 703,
+
+    // 8xx
+    // Bad interleaving means that a media has been improperly interleaved or not
+    // interleaved at all, e.g has all the video samples first then all the audio
+    // ones. Video is playing but a lot of disk seek may be happening.
+    MEDIA_INFO_BAD_INTERLEAVING = 800,
+    // The media is not seekable (e.g live stream).
+    MEDIA_INFO_NOT_SEEKABLE = 801,
+    // New media metadata is available.
+    MEDIA_INFO_METADATA_UPDATE = 802,
+
+    //9xx
+    MEDIA_INFO_TIMED_TEXT_ERROR = 900,
+};
+
+
+
+enum media_player_states {
+    MEDIA_PLAYER_STATE_ERROR        = 0,
+    MEDIA_PLAYER_IDLE               = 1 << 0,
+    MEDIA_PLAYER_INITIALIZED        = 1 << 1,
+    MEDIA_PLAYER_PREPARING          = 1 << 2,
+    MEDIA_PLAYER_PREPARED           = 1 << 3,
+    MEDIA_PLAYER_STARTED            = 1 << 4,
+    MEDIA_PLAYER_PAUSED             = 1 << 5,
+    MEDIA_PLAYER_STOPPED            = 1 << 6,
+    MEDIA_PLAYER_PLAYBACK_COMPLETE  = 1 << 7
+};
+
+// Keep KEY_PARAMETER_* in sync with MediaPlayer.java.
+// The same enum space is used for both set and get, in case there are future keys that
+// can be both set and get.  But as of now, all parameters are either set only or get only.
+enum media_parameter_keys {
+    // Streaming/buffering parameters
+    KEY_PARAMETER_CACHE_STAT_COLLECT_FREQ_MS = 1100,            // set only
+
+    // Return a Parcel containing a single int, which is the channel count of the
+    // audio track, or zero for error (e.g. no audio track) or unknown.
+    KEY_PARAMETER_AUDIO_CHANNEL_COUNT = 1200,                   // get only
+
+    // Playback rate expressed in permille (1000 is normal speed), saved as int32_t, with negative
+    // values used for rewinding or reverse playback.
+    KEY_PARAMETER_PLAYBACK_RATE_PERMILLE = 1300,                // set only
+
+    // Set a Parcel containing the value of a parcelled Java AudioAttribute instance
+    KEY_PARAMETER_AUDIO_ATTRIBUTES = 1400                       // set only
+};
+
+// Keep INVOKE_ID_* in sync with MediaPlayer.java.
+enum media_player_invoke_ids {
+    INVOKE_ID_GET_TRACK_INFO = 1,
+    INVOKE_ID_ADD_EXTERNAL_SOURCE = 2,
+    INVOKE_ID_ADD_EXTERNAL_SOURCE_FD = 3,
+    INVOKE_ID_SELECT_TRACK = 4,
+    INVOKE_ID_UNSELECT_TRACK = 5,
+    INVOKE_ID_SET_VIDEO_SCALING_MODE = 6,
+    INVOKE_ID_GET_SELECTED_TRACK = 7
+};
+
+// Keep MEDIA_TRACK_TYPE_* in sync with MediaPlayer.java.
+enum media_track_type {
+    MEDIA_TRACK_TYPE_UNKNOWN = 0,
+    MEDIA_TRACK_TYPE_VIDEO = 1,
+    MEDIA_TRACK_TYPE_AUDIO = 2,
+    MEDIA_TRACK_TYPE_TIMEDTEXT = 3,
+    MEDIA_TRACK_TYPE_SUBTITLE = 4,
+    MEDIA_TRACK_TYPE_METADATA = 5,
+};
+
+// ----------------------------------------------------------------------------
+// ref-counted object for callbacks
+class MediaPlayerListener: virtual public RefBase
+{
+public:
+    virtual void notify(int msg, int ext1, int ext2, const Parcel *obj) = 0;
+};
+
+struct IMediaHTTPService;
+
+class MediaPlayer : public BnMediaPlayerClient,
+                    public virtual IMediaDeathNotifier
+{
+public:
+    MediaPlayer();
+    ~MediaPlayer();
+            void            died();
+            void            disconnect();
+
+            status_t        setDataSource(
+                    const sp<IMediaHTTPService> &httpService,
+                    const char *url,
+                    const KeyedVector<String8, String8> *headers);
+
+            status_t        setDataSource(int fd, int64_t offset, int64_t length);
+            status_t        setDataSource(const sp<IDataSource> &source);
+            status_t        setVideoSurfaceTexture(
+                                    const sp<IGraphicBufferProducer>& bufferProducer);
+            status_t        setListener(const sp<MediaPlayerListener>& listener);
+            status_t        getDefaultBufferingSettings(BufferingSettings* buffering /* nonnull */);
+            status_t        getBufferingSettings(BufferingSettings* buffering /* nonnull */);
+            status_t        setBufferingSettings(const BufferingSettings& buffering);
+            status_t        prepare();
+            status_t        prepareAsync();
+            status_t        start();
+            status_t        stop();
+            status_t        pause();
+            bool            isPlaying();
+            status_t        setPlaybackSettings(const AudioPlaybackRate& rate);
+            status_t        getPlaybackSettings(AudioPlaybackRate* rate /* nonnull */);
+            status_t        setSyncSettings(const AVSyncSettings& sync, float videoFpsHint);
+            status_t        getSyncSettings(
+                                    AVSyncSettings* sync /* nonnull */,
+                                    float* videoFps /* nonnull */);
+            status_t        getVideoWidth(int *w);
+            status_t        getVideoHeight(int *h);
+            status_t        seekTo(
+                    int msec,
+                    MediaPlayerSeekMode mode = MediaPlayerSeekMode::SEEK_PREVIOUS_SYNC);
+            status_t        getCurrentPosition(int *msec);
+            status_t        getDuration(int *msec);
+            status_t        reset();
+            status_t        setAudioStreamType(audio_stream_type_t type);
+            status_t        getAudioStreamType(audio_stream_type_t *type);
+            status_t        setLooping(int loop);
+            bool            isLooping();
+            status_t        setVolume(float leftVolume, float rightVolume);
+            void            notify(int msg, int ext1, int ext2, const Parcel *obj = NULL);
+            status_t        invoke(const Parcel& request, Parcel *reply);
+            status_t        setMetadataFilter(const Parcel& filter);
+            status_t        getMetadata(bool update_only, bool apply_filter, Parcel *metadata);
+            status_t        setAudioSessionId(audio_session_t sessionId);
+            audio_session_t getAudioSessionId();
+            status_t        setAuxEffectSendLevel(float level);
+            status_t        attachAuxEffect(int effectId);
+            status_t        setParameter(int key, const Parcel& request);
+            status_t        getParameter(int key, Parcel* reply);
+            status_t        setRetransmitEndpoint(const char* addrString, uint16_t port);
+            status_t        setNextMediaPlayer(const sp<MediaPlayer>& player);
+
+            VolumeShaper::Status applyVolumeShaper(
+                                    const sp<VolumeShaper::Configuration>& configuration,
+                                    const sp<VolumeShaper::Operation>& operation);
+            sp<VolumeShaper::State> getVolumeShaperState(int id);
+            // Modular DRM
+            status_t        prepareDrm(const uint8_t uuid[16], const Vector<uint8_t>& drmSessionId);
+            status_t        releaseDrm();
+
+private:
+            void            clear_l();
+            status_t        seekTo_l(int msec, MediaPlayerSeekMode mode);
+            status_t        prepareAsync_l();
+            status_t        getDuration_l(int *msec);
+            status_t        attachNewPlayer(const sp<IMediaPlayer>& player);
+            status_t        reset_l();
+            status_t        doSetRetransmitEndpoint(const sp<IMediaPlayer>& player);
+            status_t        checkStateForKeySet_l(int key);
+
+    sp<IMediaPlayer>            mPlayer;
+    thread_id_t                 mLockThreadId;
+    Mutex                       mLock;
+    Mutex                       mNotifyLock;
+    Condition                   mSignal;
+    sp<MediaPlayerListener>     mListener;
+    void*                       mCookie;
+    media_player_states         mCurrentState;
+    int                         mCurrentPosition;
+    MediaPlayerSeekMode         mCurrentSeekMode;
+    int                         mSeekPosition;
+    MediaPlayerSeekMode         mSeekMode;
+    bool                        mPrepareSync;
+    status_t                    mPrepareStatus;
+    audio_stream_type_t         mStreamType;
+    Parcel*                     mAudioAttributesParcel;
+    bool                        mLoop;
+    float                       mLeftVolume;
+    float                       mRightVolume;
+    int                         mVideoWidth;
+    int                         mVideoHeight;
+    audio_session_t             mAudioSessionId;
+    float                       mSendLevel;
+    struct sockaddr_in          mRetransmitEndpoint;
+    bool                        mRetransmitEndpointValid;
+    BufferingSettings           mCurrentBufferingSettings;
+};
+
+}; // namespace android
+
+#endif // ANDROID_MEDIAPLAYER_H
diff --git a/media/libmedia/include/mediarecorder.h b/media/libmedia/include/mediarecorder.h
new file mode 100644
index 0000000..071e7a1
--- /dev/null
+++ b/media/libmedia/include/mediarecorder.h
@@ -0,0 +1,278 @@
+/*
+ ** Copyright (C) 2008 The Android Open Source Project
+ **
+ ** Licensed under the Apache License, Version 2.0 (the "License");
+ ** you may not use this file except in compliance with the License.
+ ** You may obtain a copy of the License at
+ **
+ **     http://www.apache.org/licenses/LICENSE-2.0
+ **
+ ** Unless required by applicable law or agreed to in writing, software
+ ** distributed under the License is distributed on an "AS IS" BASIS,
+ ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ ** See the License for the specific language governing permissions and
+ **
+ ** limitations under the License.
+ */
+
+#ifndef ANDROID_MEDIARECORDER_H
+#define ANDROID_MEDIARECORDER_H
+
+#include <utils/Log.h>
+#include <utils/threads.h>
+#include <utils/List.h>
+#include <utils/Errors.h>
+#include <media/IMediaRecorderClient.h>
+#include <media/IMediaDeathNotifier.h>
+
+namespace android {
+
+class Surface;
+class IMediaRecorder;
+class ICameraRecordingProxy;
+class IGraphicBufferProducer;
+struct PersistentSurface;
+class Surface;
+
+namespace hardware {
+class ICamera;
+}
+
+typedef void (*media_completion_f)(status_t status, void *cookie);
+
+enum video_source {
+    VIDEO_SOURCE_DEFAULT = 0,
+    VIDEO_SOURCE_CAMERA = 1,
+    VIDEO_SOURCE_SURFACE = 2,
+
+    VIDEO_SOURCE_LIST_END  // must be last - used to validate audio source type
+};
+
+//Please update media/java/android/media/MediaRecorder.java if the following is updated.
+enum output_format {
+    OUTPUT_FORMAT_DEFAULT = 0,
+    OUTPUT_FORMAT_THREE_GPP = 1,
+    OUTPUT_FORMAT_MPEG_4 = 2,
+
+
+    OUTPUT_FORMAT_AUDIO_ONLY_START = 3, // Used in validating the output format.  Should be the
+                                        //  at the start of the audio only output formats.
+
+    /* These are audio only file formats */
+    OUTPUT_FORMAT_RAW_AMR = 3, //to be backward compatible
+    OUTPUT_FORMAT_AMR_NB = 3,
+    OUTPUT_FORMAT_AMR_WB = 4,
+    OUTPUT_FORMAT_AAC_ADIF = 5,
+    OUTPUT_FORMAT_AAC_ADTS = 6,
+
+    OUTPUT_FORMAT_AUDIO_ONLY_END = 7, // Used in validating the output format.  Should be the
+                                      //  at the end of the audio only output formats.
+
+    /* Stream over a socket, limited to a single stream */
+    OUTPUT_FORMAT_RTP_AVP = 7,
+
+    /* H.264/AAC data encapsulated in MPEG2/TS */
+    OUTPUT_FORMAT_MPEG2TS = 8,
+
+    /* VP8/VORBIS data in a WEBM container */
+    OUTPUT_FORMAT_WEBM = 9,
+
+    OUTPUT_FORMAT_LIST_END // must be last - used to validate format type
+};
+
+enum audio_encoder {
+    AUDIO_ENCODER_DEFAULT = 0,
+    AUDIO_ENCODER_AMR_NB = 1,
+    AUDIO_ENCODER_AMR_WB = 2,
+    AUDIO_ENCODER_AAC = 3,
+    AUDIO_ENCODER_HE_AAC = 4,
+    AUDIO_ENCODER_AAC_ELD = 5,
+    AUDIO_ENCODER_VORBIS = 6,
+
+    AUDIO_ENCODER_LIST_END // must be the last - used to validate the audio encoder type
+};
+
+enum video_encoder {
+    VIDEO_ENCODER_DEFAULT = 0,
+    VIDEO_ENCODER_H263 = 1,
+    VIDEO_ENCODER_H264 = 2,
+    VIDEO_ENCODER_MPEG_4_SP = 3,
+    VIDEO_ENCODER_VP8 = 4,
+    VIDEO_ENCODER_HEVC = 5,
+
+    VIDEO_ENCODER_LIST_END // must be the last - used to validate the video encoder type
+};
+
+/*
+ * The state machine of the media_recorder.
+ */
+enum media_recorder_states {
+    // Error state.
+    MEDIA_RECORDER_ERROR                 =      0,
+
+    // Recorder was just created.
+    MEDIA_RECORDER_IDLE                  = 1 << 0,
+
+    // Recorder has been initialized.
+    MEDIA_RECORDER_INITIALIZED           = 1 << 1,
+
+    // Configuration of the recorder has been completed.
+    MEDIA_RECORDER_DATASOURCE_CONFIGURED = 1 << 2,
+
+    // Recorder is ready to start.
+    MEDIA_RECORDER_PREPARED              = 1 << 3,
+
+    // Recording is in progress.
+    MEDIA_RECORDER_RECORDING             = 1 << 4,
+};
+
+// The "msg" code passed to the listener in notify.
+enum media_recorder_event_type {
+    MEDIA_RECORDER_EVENT_LIST_START               = 1,
+    MEDIA_RECORDER_EVENT_ERROR                    = 1,
+    MEDIA_RECORDER_EVENT_INFO                     = 2,
+    MEDIA_RECORDER_EVENT_LIST_END                 = 99,
+
+    // Track related event types
+    MEDIA_RECORDER_TRACK_EVENT_LIST_START         = 100,
+    MEDIA_RECORDER_TRACK_EVENT_ERROR              = 100,
+    MEDIA_RECORDER_TRACK_EVENT_INFO               = 101,
+    MEDIA_RECORDER_TRACK_EVENT_LIST_END           = 1000,
+};
+
+/*
+ * The (part of) "what" code passed to the listener in notify.
+ * When the error or info type is track specific, the what has
+ * the following layout:
+ * the left-most 16-bit is meant for error or info type.
+ * the right-most 4-bit is meant for track id.
+ * the rest is reserved.
+ *
+ * | track id | reserved |     error or info type     |
+ * 31         28         16                           0
+ *
+ */
+enum media_recorder_error_type {
+    MEDIA_RECORDER_ERROR_UNKNOWN                   = 1,
+
+    // Track related error type
+    MEDIA_RECORDER_TRACK_ERROR_LIST_START          = 100,
+    MEDIA_RECORDER_TRACK_ERROR_GENERAL             = 100,
+    MEDIA_RECORDER_ERROR_VIDEO_NO_SYNC_FRAME       = 200,
+    MEDIA_RECORDER_TRACK_ERROR_LIST_END            = 1000,
+};
+
+// The codes are distributed as follow:
+//   0xx: Reserved
+//   8xx: General info/warning
+//
+enum media_recorder_info_type {
+    MEDIA_RECORDER_INFO_UNKNOWN                   = 1,
+
+    MEDIA_RECORDER_INFO_MAX_DURATION_REACHED      = 800,
+    MEDIA_RECORDER_INFO_MAX_FILESIZE_REACHED      = 801,
+    MEDIA_RECORDER_INFO_MAX_FILESIZE_APPROACHING  = 802,
+    MEDIA_RECORDER_INFO_NEXT_OUTPUT_FILE_STARTED  = 803,
+
+    // All track related informtional events start here
+    MEDIA_RECORDER_TRACK_INFO_LIST_START           = 1000,
+    MEDIA_RECORDER_TRACK_INFO_COMPLETION_STATUS    = 1000,
+    MEDIA_RECORDER_TRACK_INFO_PROGRESS_IN_TIME     = 1001,
+    MEDIA_RECORDER_TRACK_INFO_TYPE                 = 1002,
+    MEDIA_RECORDER_TRACK_INFO_DURATION_MS          = 1003,
+
+    // The time to measure the max chunk duration
+    MEDIA_RECORDER_TRACK_INFO_MAX_CHUNK_DUR_MS     = 1004,
+
+    MEDIA_RECORDER_TRACK_INFO_ENCODED_FRAMES       = 1005,
+
+    // The time to measure how well the audio and video
+    // track data is interleaved.
+    MEDIA_RECORDER_TRACK_INTER_CHUNK_TIME_MS       = 1006,
+
+    // The time to measure system response. Note that
+    // the delay does not include the intentional delay
+    // we use to eliminate the recording sound.
+    MEDIA_RECORDER_TRACK_INFO_INITIAL_DELAY_MS     = 1007,
+
+    // The time used to compensate for initial A/V sync.
+    MEDIA_RECORDER_TRACK_INFO_START_OFFSET_MS      = 1008,
+
+    // Total number of bytes of the media data.
+    MEDIA_RECORDER_TRACK_INFO_DATA_KBYTES          = 1009,
+
+    MEDIA_RECORDER_TRACK_INFO_LIST_END             = 2000,
+};
+
+// ----------------------------------------------------------------------------
+// ref-counted object for callbacks
+class MediaRecorderListener: virtual public RefBase
+{
+public:
+    virtual void notify(int msg, int ext1, int ext2) = 0;
+};
+
+class MediaRecorder : public BnMediaRecorderClient,
+                      public virtual IMediaDeathNotifier
+{
+public:
+    MediaRecorder(const String16& opPackageName);
+    ~MediaRecorder();
+
+    void        died();
+    status_t    initCheck();
+    status_t    setCamera(const sp<hardware::ICamera>& camera,
+            const sp<ICameraRecordingProxy>& proxy);
+    status_t    setPreviewSurface(const sp<IGraphicBufferProducer>& surface);
+    status_t    setVideoSource(int vs);
+    status_t    setAudioSource(int as);
+    status_t    setOutputFormat(int of);
+    status_t    setVideoEncoder(int ve);
+    status_t    setAudioEncoder(int ae);
+    status_t    setOutputFile(int fd);
+    status_t    setNextOutputFile(int fd);
+    status_t    setVideoSize(int width, int height);
+    status_t    setVideoFrameRate(int frames_per_second);
+    status_t    setParameters(const String8& params);
+    status_t    setListener(const sp<MediaRecorderListener>& listener);
+    status_t    setClientName(const String16& clientName);
+    status_t    prepare();
+    status_t    getMaxAmplitude(int* max);
+    status_t    start();
+    status_t    stop();
+    status_t    reset();
+    status_t    pause();
+    status_t    resume();
+    status_t    init();
+    status_t    close();
+    status_t    release();
+    void        notify(int msg, int ext1, int ext2);
+    status_t    setInputSurface(const sp<PersistentSurface>& surface);
+    sp<IGraphicBufferProducer>     querySurfaceMediaSourceFromMediaServer();
+    status_t    getMetrics(Parcel *reply);
+
+private:
+    void                    doCleanUp();
+    status_t                doReset();
+
+    sp<IMediaRecorder>          mMediaRecorder;
+    sp<MediaRecorderListener>   mListener;
+
+    // Reference to IGraphicBufferProducer
+    // for encoding GL Frames. That is useful only when the
+    // video source is set to VIDEO_SOURCE_GRALLOC_BUFFER
+    sp<IGraphicBufferProducer>  mSurfaceMediaSource;
+
+    media_recorder_states       mCurrentState;
+    bool                        mIsAudioSourceSet;
+    bool                        mIsVideoSourceSet;
+    bool                        mIsAudioEncoderSet;
+    bool                        mIsVideoEncoderSet;
+    bool                        mIsOutputFileSet;
+    Mutex                       mLock;
+    Mutex                       mNotifyLock;
+};
+
+};  // namespace android
+
+#endif // ANDROID_MEDIARECORDER_H
diff --git a/include/media/mediascanner.h b/media/libmedia/include/mediascanner.h
similarity index 100%
rename from include/media/mediascanner.h
rename to media/libmedia/include/mediascanner.h
diff --git a/media/libmedia/mediaplayer.cpp b/media/libmedia/mediaplayer.cpp
index fbe749c..685065a 100644
--- a/media/libmedia/mediaplayer.cpp
+++ b/media/libmedia/mediaplayer.cpp
@@ -16,7 +16,7 @@
 */
 
 //#define LOG_NDEBUG 0
-#define LOG_TAG "MediaPlayer"
+#define LOG_TAG "MediaPlayerNative"
 
 #include <fcntl.h>
 #include <inttypes.h>
@@ -36,6 +36,7 @@
 #include <media/AudioSystem.h>
 #include <media/AVSyncSettings.h>
 #include <media/IDataSource.h>
+#include <media/MediaAnalyticsItem.h>
 
 #include <binder/MemoryBase.h>
 
@@ -55,7 +56,9 @@
     mStreamType = AUDIO_STREAM_MUSIC;
     mAudioAttributesParcel = NULL;
     mCurrentPosition = -1;
+    mCurrentSeekMode = MediaPlayerSeekMode::SEEK_PREVIOUS_SYNC;
     mSeekPosition = -1;
+    mSeekMode = MediaPlayerSeekMode::SEEK_PREVIOUS_SYNC;
     mCurrentState = MEDIA_PLAYER_IDLE;
     mPrepareSync = false;
     mPrepareStatus = NO_ERROR;
@@ -100,7 +103,9 @@
 void MediaPlayer::clear_l()
 {
     mCurrentPosition = -1;
+    mCurrentSeekMode = MediaPlayerSeekMode::SEEK_PREVIOUS_SYNC;
     mSeekPosition = -1;
+    mSeekMode = MediaPlayerSeekMode::SEEK_PREVIOUS_SYNC;
     mVideoWidth = mVideoHeight = 0;
     mRetransmitEndpointValid = false;
 }
@@ -132,8 +137,10 @@
         mPlayer = player;
         if (player != 0) {
             mCurrentState = MEDIA_PLAYER_INITIALIZED;
+            player->getDefaultBufferingSettings(&mCurrentBufferingSettings);
             err = NO_ERROR;
         } else {
+            mCurrentBufferingSettings = BufferingSettings();
             ALOGE("Unable to create media player");
         }
     }
@@ -240,6 +247,44 @@
     return mPlayer->setVideoSurfaceTexture(bufferProducer);
 }
 
+status_t MediaPlayer::getDefaultBufferingSettings(BufferingSettings* buffering /* nonnull */)
+{
+    ALOGV("getDefaultBufferingSettings");
+
+    Mutex::Autolock _l(mLock);
+    if (mPlayer == 0) {
+        return NO_INIT;
+    }
+    return mPlayer->getDefaultBufferingSettings(buffering);
+}
+
+status_t MediaPlayer::getBufferingSettings(BufferingSettings* buffering /* nonnull */)
+{
+    ALOGV("getBufferingSettings");
+
+    Mutex::Autolock _l(mLock);
+    if (mPlayer == 0) {
+        return NO_INIT;
+    }
+    *buffering = mCurrentBufferingSettings;
+    return NO_ERROR;
+}
+
+status_t MediaPlayer::setBufferingSettings(const BufferingSettings& buffering)
+{
+    ALOGV("setBufferingSettings");
+
+    Mutex::Autolock _l(mLock);
+    if (mPlayer == 0) {
+        return NO_INIT;
+    }
+    status_t err =  mPlayer->setBufferingSettings(buffering);
+    if (err == NO_ERROR) {
+        mCurrentBufferingSettings = buffering;
+    }
+    return err;
+}
+
 // must call with lock held
 status_t MediaPlayer::prepareAsync_l()
 {
@@ -508,9 +553,9 @@
     return getDuration_l(msec);
 }
 
-status_t MediaPlayer::seekTo_l(int msec)
+status_t MediaPlayer::seekTo_l(int msec, MediaPlayerSeekMode mode)
 {
-    ALOGV("seekTo %d", msec);
+    ALOGV("seekTo (%d, %d)", msec, mode);
     if ((mPlayer != 0) && ( mCurrentState & ( MEDIA_PLAYER_STARTED | MEDIA_PLAYER_PREPARED |
             MEDIA_PLAYER_PAUSED |  MEDIA_PLAYER_PLAYBACK_COMPLETE) ) ) {
         if ( msec < 0 ) {
@@ -537,12 +582,14 @@
 
         // cache duration
         mCurrentPosition = msec;
+        mCurrentSeekMode = mode;
         if (mSeekPosition < 0) {
             mSeekPosition = msec;
-            return mPlayer->seekTo(msec);
+            mSeekMode = mode;
+            return mPlayer->seekTo(msec, mode);
         }
         else {
-            ALOGV("Seek in progress - queue up seekTo[%d]", msec);
+            ALOGV("Seek in progress - queue up seekTo[%d, %d]", msec, mode);
             return NO_ERROR;
         }
     }
@@ -551,11 +598,11 @@
     return INVALID_OPERATION;
 }
 
-status_t MediaPlayer::seekTo(int msec)
+status_t MediaPlayer::seekTo(int msec, MediaPlayerSeekMode mode)
 {
     mLockThreadId = getThreadId();
     Mutex::Autolock _l(mLock);
-    status_t result = seekTo_l(msec);
+    status_t result = seekTo_l(msec, mode);
     mLockThreadId = 0;
 
     return result;
@@ -578,6 +625,7 @@
         // setDataSource has to be called again to create a
         // new mediaplayer.
         mPlayer = 0;
+        mCurrentBufferingSettings = BufferingSettings();
         return ret;
     }
     clear_l();
@@ -763,7 +811,11 @@
     ALOGV("MediaPlayer::getParameter(%d)", key);
     Mutex::Autolock _l(mLock);
     if (mPlayer != NULL) {
-        return  mPlayer->getParameter(key, reply);
+        status_t status =  mPlayer->getParameter(key, reply);
+        if (status != OK) {
+            ALOGD("getParameter returns %d", status);
+        }
+        return status;
     }
     ALOGV("getParameter: no active player");
     return INVALID_OPERATION;
@@ -827,7 +879,7 @@
     case MEDIA_NOP: // interface test message
         break;
     case MEDIA_PREPARED:
-        ALOGV("prepared");
+        ALOGV("MediaPlayer::notify() prepared");
         mCurrentState = MEDIA_PLAYER_PREPARED;
         if (mPrepareSync) {
             ALOGV("signal application thread");
@@ -836,6 +888,9 @@
             mSignal.signal();
         }
         break;
+    case MEDIA_DRM_INFO:
+        ALOGV("MediaPlayer::notify() MEDIA_DRM_INFO(%d, %d, %d, %p)", msg, ext1, ext2, obj);
+        break;
     case MEDIA_PLAYBACK_COMPLETE:
         ALOGV("playback complete");
         if (mCurrentState == MEDIA_PLAYER_IDLE) {
@@ -869,14 +924,16 @@
         break;
     case MEDIA_SEEK_COMPLETE:
         ALOGV("Received seek complete");
-        if (mSeekPosition != mCurrentPosition) {
-            ALOGV("Executing queued seekTo(%d)", mSeekPosition);
+        if (mSeekPosition != mCurrentPosition || (mSeekMode != mCurrentSeekMode)) {
+            ALOGV("Executing queued seekTo(%d, %d)", mCurrentPosition, mCurrentSeekMode);
             mSeekPosition = -1;
-            seekTo_l(mCurrentPosition);
+            mSeekMode = MediaPlayerSeekMode::SEEK_PREVIOUS_SYNC;
+            seekTo_l(mCurrentPosition, mCurrentSeekMode);
         }
         else {
             ALOGV("All seeks complete - return to regularly scheduled program");
             mCurrentPosition = mSeekPosition = -1;
+            mCurrentSeekMode = mSeekMode = MediaPlayerSeekMode::SEEK_PREVIOUS_SYNC;
         }
         break;
     case MEDIA_BUFFERING_UPDATE:
@@ -934,4 +991,86 @@
     return mPlayer->setNextPlayer(next == NULL ? NULL : next->mPlayer);
 }
 
+VolumeShaper::Status MediaPlayer::applyVolumeShaper(
+        const sp<VolumeShaper::Configuration>& configuration,
+        const sp<VolumeShaper::Operation>& operation)
+{
+    Mutex::Autolock _l(mLock);
+    if (mPlayer == nullptr) {
+        return VolumeShaper::Status(NO_INIT);
+    }
+    VolumeShaper::Status status = mPlayer->applyVolumeShaper(configuration, operation);
+    return status;
+}
+
+sp<VolumeShaper::State> MediaPlayer::getVolumeShaperState(int id)
+{
+    Mutex::Autolock _l(mLock);
+    if (mPlayer == nullptr) {
+        return nullptr;
+    }
+    return mPlayer->getVolumeShaperState(id);
+}
+
+// Modular DRM
+status_t MediaPlayer::prepareDrm(const uint8_t uuid[16], const Vector<uint8_t>& drmSessionId)
+{
+    // TODO change to ALOGV
+    ALOGD("prepareDrm: uuid: %p  drmSessionId: %p(%zu)", uuid,
+            drmSessionId.array(), drmSessionId.size());
+    Mutex::Autolock _l(mLock);
+    if (mPlayer == NULL) {
+        return NO_INIT;
+    }
+
+    // Only allowing it in player's prepared state
+    if (!(mCurrentState & MEDIA_PLAYER_PREPARED)) {
+        ALOGE("prepareDrm must only be called in the prepared state.");
+        return INVALID_OPERATION;
+    }
+
+    if (drmSessionId.isEmpty()) {
+        ALOGE("prepareDrm: Unexpected. Can't proceed with crypto. Empty drmSessionId.");
+        return INVALID_OPERATION;
+    }
+
+    // Passing down to mediaserver mainly for creating the crypto
+    status_t status = mPlayer->prepareDrm(uuid, drmSessionId);
+    ALOGE_IF(status != OK, "prepareDrm: Failed at mediaserver with ret: %d", status);
+
+    // TODO change to ALOGV
+    ALOGD("prepareDrm: mediaserver::prepareDrm ret=%d", status);
+
+    return status;
+}
+
+status_t MediaPlayer::releaseDrm()
+{
+    Mutex::Autolock _l(mLock);
+    if (mPlayer == NULL) {
+        return NO_INIT;
+    }
+
+    // Not allowing releaseDrm in an active/resumable state
+    if (mCurrentState & (MEDIA_PLAYER_STARTED |
+                         MEDIA_PLAYER_PAUSED |
+                         MEDIA_PLAYER_PLAYBACK_COMPLETE |
+                         MEDIA_PLAYER_STATE_ERROR)) {
+        ALOGE("releaseDrm Unexpected state %d. Can only be called in stopped/idle.", mCurrentState);
+        return INVALID_OPERATION;
+    }
+
+    status_t status = mPlayer->releaseDrm();
+    // TODO change to ALOGV
+    ALOGD("releaseDrm: mediaserver::releaseDrm ret: %d", status);
+    if (status != OK) {
+        ALOGE("releaseDrm: Failed at mediaserver with ret: %d", status);
+        // Overriding to OK so the client proceed with its own cleanup
+        // Client can't do more cleanup. mediaserver release its crypto at end of session anyway.
+        status = OK;
+    }
+
+    return status;
+}
+
 } // namespace android
diff --git a/media/libmedia/mediarecorder.cpp b/media/libmedia/mediarecorder.cpp
index 59c077a..4405930 100644
--- a/media/libmedia/mediarecorder.cpp
+++ b/media/libmedia/mediarecorder.cpp
@@ -256,6 +256,7 @@
         return INVALID_OPERATION;
     }
 
+
     status_t ret = mMediaRecorder->setAudioEncoder(ae);
     if (OK != ret) {
         ALOGV("setAudioEncoder failed: %d", ret);
@@ -266,9 +267,9 @@
     return ret;
 }
 
-status_t MediaRecorder::setOutputFile(int fd, int64_t offset, int64_t length)
+status_t MediaRecorder::setOutputFile(int fd)
 {
-    ALOGV("setOutputFile(%d, %" PRId64 ", %" PRId64 ")", fd, offset, length);
+    ALOGV("setOutputFile(%d)", fd);
     if (mMediaRecorder == NULL) {
         ALOGE("media recorder is not initialized yet");
         return INVALID_OPERATION;
@@ -288,14 +289,19 @@
     // the invalid file descritpor never gets invoked. This is to workaround
     // this issue by checking the file descriptor first before passing
     // it through binder call.
-    if (fd < 0) {
-        ALOGE("Invalid file descriptor: %d", fd);
+    int flags = fcntl(fd, F_GETFL);
+    if (flags == -1) {
+        ALOGE("Fail to get File Status Flags err: %s", strerror(errno));
+    }
+    // fd must be in read-write mode or write-only mode.
+    if ((flags & (O_RDWR | O_WRONLY)) == 0) {
+        ALOGE("File descriptor is not in read-write mode or write-only mode");
         return BAD_VALUE;
     }
 
-    status_t ret = mMediaRecorder->setOutputFile(fd, offset, length);
+    status_t ret = mMediaRecorder->setOutputFile(fd);
     if (OK != ret) {
-        ALOGV("setOutputFile failed: %d", ret);
+        ALOGE("setOutputFile failed: %d", ret);
         mCurrentState = MEDIA_RECORDER_ERROR;
         return ret;
     }
@@ -303,6 +309,37 @@
     return ret;
 }
 
+status_t MediaRecorder::setNextOutputFile(int fd)
+{
+    ALOGV("setNextOutputFile(%d)", fd);
+    if (mMediaRecorder == NULL) {
+        ALOGE("media recorder is not initialized yet");
+        return INVALID_OPERATION;
+    }
+
+    // It appears that if an invalid file descriptor is passed through
+    // binder calls, the server-side of the inter-process function call
+    // is skipped. As a result, the check at the server-side to catch
+    // the invalid file descritpor never gets invoked. This is to workaround
+    // this issue by checking the file descriptor first before passing
+    // it through binder call.
+    int flags = fcntl(fd, F_GETFL);
+    if (flags == -1) {
+        ALOGE("Fail to get File Status Flags err: %s", strerror(errno));
+    }
+    // fd must be in read-write mode or write-only mode.
+    if ((flags & (O_RDWR | O_WRONLY)) == 0) {
+        ALOGE("File descriptor is not in read-write mode or write-only mode");
+        return BAD_VALUE;
+    }
+
+    status_t ret = mMediaRecorder->setNextOutputFile(fd);
+    if (OK != ret) {
+        ALOGE("setNextOutputFile failed: %d", ret);
+    }
+    return ret;
+}
+
 status_t MediaRecorder::setVideoSize(int width, int height)
 {
     ALOGV("setVideoSize(%d, %d)", width, height);
@@ -361,7 +398,7 @@
         return INVALID_OPERATION;
     }
 
-    return mMediaRecorder->setInputSurface(surface->getBufferConsumer());
+    return mMediaRecorder->setInputSurface(surface);
 }
 
 status_t MediaRecorder::setVideoFrameRate(int frames_per_second)
@@ -476,6 +513,17 @@
     return ret;
 }
 
+status_t MediaRecorder::getMetrics(Parcel *reply) {
+
+    ALOGV("getMetrics");
+
+    status_t ret = mMediaRecorder->getMetrics(reply);
+    if (OK != ret) {
+        ALOGE("getMetrics failed: %d", ret);
+    }
+    return ret;
+}
+
 status_t MediaRecorder::start()
 {
     ALOGV("start");
diff --git a/media/libmedia/omx/1.0/WGraphicBufferSource.cpp b/media/libmedia/omx/1.0/WGraphicBufferSource.cpp
new file mode 100644
index 0000000..b4e2975
--- /dev/null
+++ b/media/libmedia/omx/1.0/WGraphicBufferSource.cpp
@@ -0,0 +1,91 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <media/omx/1.0/WGraphicBufferSource.h>
+#include <media/omx/1.0/WOmxNode.h>
+#include <media/omx/1.0/Conversion.h>
+
+namespace android {
+namespace hardware {
+namespace media {
+namespace omx {
+namespace V1_0 {
+namespace utils {
+
+// LWGraphicBufferSource
+LWGraphicBufferSource::LWGraphicBufferSource(
+        sp<TGraphicBufferSource> const& base) : mBase(base) {
+}
+
+BnStatus LWGraphicBufferSource::configure(
+        const sp<IOMXNode>& omxNode, int32_t dataSpace) {
+    sp<IOmxNode> hOmxNode = omxNode->getHalInterface();
+    return toBinderStatus(mBase->configure(
+            hOmxNode == nullptr ? new TWOmxNode(omxNode) : hOmxNode,
+            toHardwareDataspace(dataSpace)));
+}
+
+BnStatus LWGraphicBufferSource::setSuspend(
+        bool suspend, int64_t timeUs) {
+    return toBinderStatus(mBase->setSuspend(suspend, timeUs));
+}
+
+BnStatus LWGraphicBufferSource::setRepeatPreviousFrameDelayUs(
+        int64_t repeatAfterUs) {
+    return toBinderStatus(mBase->setRepeatPreviousFrameDelayUs(repeatAfterUs));
+}
+
+BnStatus LWGraphicBufferSource::setMaxFps(float maxFps) {
+    return toBinderStatus(mBase->setMaxFps(maxFps));
+}
+
+BnStatus LWGraphicBufferSource::setTimeLapseConfig(
+        int64_t timePerFrameUs, int64_t timePerCaptureUs) {
+    return toBinderStatus(mBase->setTimeLapseConfig(
+            timePerFrameUs, timePerCaptureUs));
+}
+
+BnStatus LWGraphicBufferSource::setStartTimeUs(
+        int64_t startTimeUs) {
+    return toBinderStatus(mBase->setStartTimeUs(startTimeUs));
+}
+
+BnStatus LWGraphicBufferSource::setStopTimeUs(
+        int64_t stopTimeUs) {
+    return toBinderStatus(mBase->setStopTimeUs(stopTimeUs));
+}
+
+BnStatus LWGraphicBufferSource::setColorAspects(
+        int32_t aspects) {
+    return toBinderStatus(mBase->setColorAspects(
+            toHardwareColorAspects(aspects)));
+}
+
+BnStatus LWGraphicBufferSource::setTimeOffsetUs(
+        int64_t timeOffsetsUs) {
+    return toBinderStatus(mBase->setTimeOffsetUs(timeOffsetsUs));
+}
+
+BnStatus LWGraphicBufferSource::signalEndOfInputStream() {
+    return toBinderStatus(mBase->signalEndOfInputStream());
+}
+
+}  // namespace utils
+}  // namespace V1_0
+}  // namespace omx
+}  // namespace media
+}  // namespace hardware
+}  // namespace android
diff --git a/media/libmedia/omx/1.0/WOmx.cpp b/media/libmedia/omx/1.0/WOmx.cpp
new file mode 100644
index 0000000..8e4e147
--- /dev/null
+++ b/media/libmedia/omx/1.0/WOmx.cpp
@@ -0,0 +1,87 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <media/omx/1.0/WOmx.h>
+#include <media/omx/1.0/WOmxNode.h>
+#include <media/omx/1.0/WOmxObserver.h>
+#include <media/omx/1.0/WOmxBufferProducer.h>
+#include <media/omx/1.0/WGraphicBufferSource.h>
+#include <media/omx/1.0/Conversion.h>
+
+namespace android {
+namespace hardware {
+namespace media {
+namespace omx {
+namespace V1_0 {
+namespace utils {
+
+// LWOmx
+LWOmx::LWOmx(sp<IOmx> const& base) : mBase(base) {
+}
+
+status_t LWOmx::listNodes(List<IOMX::ComponentInfo>* list) {
+    status_t fnStatus;
+    status_t transStatus = toStatusT(mBase->listNodes(
+            [&fnStatus, list](
+                    Status status,
+                    hidl_vec<IOmx::ComponentInfo> const& nodeList) {
+                fnStatus = toStatusT(status);
+                list->clear();
+                for (size_t i = 0; i < nodeList.size(); ++i) {
+                    auto newInfo = list->insert(
+                            list->end(), IOMX::ComponentInfo());
+                    convertTo(&*newInfo, nodeList[i]);
+                }
+            }));
+    return transStatus == NO_ERROR ? fnStatus : transStatus;
+}
+
+status_t LWOmx::allocateNode(
+        char const* name,
+        sp<IOMXObserver> const& observer,
+        sp<IOMXNode>* omxNode) {
+    status_t fnStatus;
+    status_t transStatus = toStatusT(mBase->allocateNode(
+            name, new TWOmxObserver(observer),
+            [&fnStatus, omxNode](Status status, sp<IOmxNode> const& node) {
+                fnStatus = toStatusT(status);
+                *omxNode = new LWOmxNode(node);
+            }));
+    return transStatus == NO_ERROR ? fnStatus : transStatus;
+}
+
+status_t LWOmx::createInputSurface(
+        sp<::android::IGraphicBufferProducer>* bufferProducer,
+        sp<::android::IGraphicBufferSource>* bufferSource) {
+    status_t fnStatus;
+    status_t transStatus = toStatusT(mBase->createInputSurface(
+            [&fnStatus, bufferProducer, bufferSource] (
+                    Status status,
+                    sp<IOmxBufferProducer> const& tProducer,
+                    sp<IGraphicBufferSource> const& tSource) {
+                fnStatus = toStatusT(status);
+                *bufferProducer = new LWOmxBufferProducer(tProducer);
+                *bufferSource = new LWGraphicBufferSource(tSource);
+            }));
+    return transStatus == NO_ERROR ? fnStatus : transStatus;
+}
+
+}  // namespace utils
+}  // namespace V1_0
+}  // namespace omx
+}  // namespace media
+}  // namespace hardware
+}  // namespace android
diff --git a/media/libmedia/omx/1.0/WOmxBufferProducer.cpp b/media/libmedia/omx/1.0/WOmxBufferProducer.cpp
new file mode 100644
index 0000000..03499f2
--- /dev/null
+++ b/media/libmedia/omx/1.0/WOmxBufferProducer.cpp
@@ -0,0 +1,610 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "WOmxBufferProducer-utils"
+
+#include <utils/Log.h>
+
+#include <media/omx/1.0/WOmxBufferProducer.h>
+#include <media/omx/1.0/WOmxProducerListener.h>
+#include <media/omx/1.0/Conversion.h>
+
+namespace android {
+namespace hardware {
+namespace media {
+namespace omx {
+namespace V1_0 {
+namespace utils {
+
+// TWOmxBufferProducer
+TWOmxBufferProducer::TWOmxBufferProducer(
+        sp<IGraphicBufferProducer> const& base):
+    mBase(base) {
+}
+
+Return<void> TWOmxBufferProducer::requestBuffer(
+        int32_t slot, requestBuffer_cb _hidl_cb) {
+    sp<GraphicBuffer> buf;
+    status_t status = mBase->requestBuffer(slot, &buf);
+    AnwBuffer anwBuffer;
+    wrapAs(&anwBuffer, *buf);
+    _hidl_cb(toStatus(status), anwBuffer);
+    return Void();
+}
+
+Return<Status> TWOmxBufferProducer::setMaxDequeuedBufferCount(
+        int32_t maxDequeuedBuffers) {
+    return toStatus(mBase->setMaxDequeuedBufferCount(
+            static_cast<int>(maxDequeuedBuffers)));
+}
+
+Return<Status> TWOmxBufferProducer::setAsyncMode(bool async) {
+    return toStatus(mBase->setAsyncMode(async));
+}
+
+Return<void> TWOmxBufferProducer::dequeueBuffer(
+        uint32_t width, uint32_t height,
+        PixelFormat format, uint32_t usage,
+        bool getFrameTimestamps, dequeueBuffer_cb _hidl_cb) {
+    int slot;
+    sp<Fence> fence;
+    ::android::FrameEventHistoryDelta outTimestamps;
+    status_t status = mBase->dequeueBuffer(
+            &slot, &fence,
+            width, height,
+            static_cast<::android::PixelFormat>(format), usage,
+            getFrameTimestamps ? &outTimestamps : nullptr);
+    hidl_handle tFence;
+    FrameEventHistoryDelta tOutTimestamps;
+
+    native_handle_t* nh = nullptr;
+    if ((fence == nullptr) || !wrapAs(&tFence, &nh, *fence)) {
+        ALOGE("TWOmxBufferProducer::dequeueBuffer - Invalid output fence");
+        _hidl_cb(toStatus(status),
+                 static_cast<int32_t>(slot),
+                 tFence,
+                 tOutTimestamps);
+        return Void();
+    }
+    std::vector<std::vector<native_handle_t*> > nhAA;
+    if (getFrameTimestamps && !wrapAs(&tOutTimestamps, &nhAA, outTimestamps)) {
+        ALOGE("TWOmxBufferProducer::dequeueBuffer - Invalid output timestamps");
+        _hidl_cb(toStatus(status),
+                 static_cast<int32_t>(slot),
+                 tFence,
+                 tOutTimestamps);
+        native_handle_delete(nh);
+        return Void();
+    }
+
+    _hidl_cb(toStatus(status),
+            static_cast<int32_t>(slot),
+            tFence,
+            tOutTimestamps);
+    native_handle_delete(nh);
+    if (getFrameTimestamps) {
+        for (auto& nhA : nhAA) {
+            for (auto& handle : nhA) {
+                native_handle_delete(handle);
+            }
+        }
+    }
+    return Void();
+}
+
+Return<Status> TWOmxBufferProducer::detachBuffer(int32_t slot) {
+    return toStatus(mBase->detachBuffer(slot));
+}
+
+Return<void> TWOmxBufferProducer::detachNextBuffer(
+        detachNextBuffer_cb _hidl_cb) {
+    sp<GraphicBuffer> outBuffer;
+    sp<Fence> outFence;
+    status_t status = mBase->detachNextBuffer(&outBuffer, &outFence);
+    AnwBuffer tBuffer;
+    hidl_handle tFence;
+
+    if (outBuffer == nullptr) {
+        ALOGE("TWOmxBufferProducer::detachNextBuffer - Invalid output buffer");
+        _hidl_cb(toStatus(status), tBuffer, tFence);
+        return Void();
+    }
+    wrapAs(&tBuffer, *outBuffer);
+    native_handle_t* nh = nullptr;
+    if ((outFence != nullptr) && !wrapAs(&tFence, &nh, *outFence)) {
+        ALOGE("TWOmxBufferProducer::detachNextBuffer - Invalid output fence");
+        _hidl_cb(toStatus(status), tBuffer, tFence);
+        return Void();
+    }
+
+    _hidl_cb(toStatus(status), tBuffer, tFence);
+    native_handle_delete(nh);
+    return Void();
+}
+
+Return<void> TWOmxBufferProducer::attachBuffer(
+        const AnwBuffer& buffer,
+        attachBuffer_cb _hidl_cb) {
+    int outSlot;
+    sp<GraphicBuffer> lBuffer = new GraphicBuffer();
+    if (!convertTo(lBuffer.get(), buffer)) {
+        ALOGE("TWOmxBufferProducer::attachBuffer - "
+                "Invalid input native window buffer");
+        _hidl_cb(toStatus(BAD_VALUE), -1);
+        return Void();
+    }
+    status_t status = mBase->attachBuffer(&outSlot, lBuffer);
+
+    _hidl_cb(toStatus(status), static_cast<int32_t>(outSlot));
+    return Void();
+}
+
+Return<void> TWOmxBufferProducer::queueBuffer(
+        int32_t slot, const QueueBufferInput& input,
+        queueBuffer_cb _hidl_cb) {
+    QueueBufferOutput tOutput;
+    IGraphicBufferProducer::QueueBufferInput lInput(
+            0, false, HAL_DATASPACE_UNKNOWN,
+            ::android::Rect(0, 0, 1, 1),
+            NATIVE_WINDOW_SCALING_MODE_FREEZE,
+            0, ::android::Fence::NO_FENCE);
+    if (!convertTo(&lInput, input)) {
+        ALOGE("TWOmxBufferProducer::queueBuffer - Invalid input");
+        _hidl_cb(toStatus(BAD_VALUE), tOutput);
+        return Void();
+    }
+    IGraphicBufferProducer::QueueBufferOutput lOutput;
+    status_t status = mBase->queueBuffer(
+            static_cast<int>(slot), lInput, &lOutput);
+
+    std::vector<std::vector<native_handle_t*> > nhAA;
+    if (!wrapAs(&tOutput, &nhAA, lOutput)) {
+        ALOGE("TWOmxBufferProducer::queueBuffer - Invalid output");
+        _hidl_cb(toStatus(BAD_VALUE), tOutput);
+        return Void();
+    }
+
+    _hidl_cb(toStatus(status), tOutput);
+    for (auto& nhA : nhAA) {
+        for (auto& nh : nhA) {
+            native_handle_delete(nh);
+        }
+    }
+    return Void();
+}
+
+Return<Status> TWOmxBufferProducer::cancelBuffer(
+        int32_t slot, const hidl_handle& fence) {
+    sp<Fence> lFence = new Fence();
+    if (!convertTo(lFence.get(), fence)) {
+        ALOGE("TWOmxBufferProducer::cancelBuffer - Invalid input fence");
+        return toStatus(BAD_VALUE);
+    }
+    return toStatus(mBase->cancelBuffer(static_cast<int>(slot), lFence));
+}
+
+Return<void> TWOmxBufferProducer::query(int32_t what, query_cb _hidl_cb) {
+    int lValue;
+    int lReturn = mBase->query(static_cast<int>(what), &lValue);
+    _hidl_cb(static_cast<int32_t>(lReturn), static_cast<int32_t>(lValue));
+    return Void();
+}
+
+Return<void> TWOmxBufferProducer::connect(
+        const sp<IOmxProducerListener>& listener,
+        int32_t api, bool producerControlledByApp, connect_cb _hidl_cb) {
+    sp<IProducerListener> lListener = listener == nullptr ?
+            nullptr : new LWOmxProducerListener(listener);
+    IGraphicBufferProducer::QueueBufferOutput lOutput;
+    status_t status = mBase->connect(lListener,
+            static_cast<int>(api),
+            producerControlledByApp,
+            &lOutput);
+
+    QueueBufferOutput tOutput;
+    std::vector<std::vector<native_handle_t*> > nhAA;
+    if (!wrapAs(&tOutput, &nhAA, lOutput)) {
+        ALOGE("TWOmxBufferProducer::connect - Invalid output");
+        _hidl_cb(toStatus(status), tOutput);
+        return Void();
+    }
+
+    _hidl_cb(toStatus(status), tOutput);
+    for (auto& nhA : nhAA) {
+        for (auto& nh : nhA) {
+            native_handle_delete(nh);
+        }
+    }
+    return Void();
+}
+
+Return<Status> TWOmxBufferProducer::disconnect(
+        int32_t api, DisconnectMode mode) {
+    return toStatus(mBase->disconnect(
+            static_cast<int>(api),
+            toGuiDisconnectMode(mode)));
+}
+
+Return<Status> TWOmxBufferProducer::setSidebandStream(const hidl_handle& stream) {
+    return toStatus(mBase->setSidebandStream(NativeHandle::create(
+            native_handle_clone(stream), true)));
+}
+
+Return<void> TWOmxBufferProducer::allocateBuffers(
+        uint32_t width, uint32_t height, PixelFormat format, uint32_t usage) {
+    mBase->allocateBuffers(
+            width, height,
+            static_cast<::android::PixelFormat>(format),
+            usage);
+    return Void();
+}
+
+Return<Status> TWOmxBufferProducer::allowAllocation(bool allow) {
+    return toStatus(mBase->allowAllocation(allow));
+}
+
+Return<Status> TWOmxBufferProducer::setGenerationNumber(uint32_t generationNumber) {
+    return toStatus(mBase->setGenerationNumber(generationNumber));
+}
+
+Return<void> TWOmxBufferProducer::getConsumerName(getConsumerName_cb _hidl_cb) {
+    _hidl_cb(mBase->getConsumerName().string());
+    return Void();
+}
+
+Return<Status> TWOmxBufferProducer::setSharedBufferMode(bool sharedBufferMode) {
+    return toStatus(mBase->setSharedBufferMode(sharedBufferMode));
+}
+
+Return<Status> TWOmxBufferProducer::setAutoRefresh(bool autoRefresh) {
+    return toStatus(mBase->setAutoRefresh(autoRefresh));
+}
+
+Return<Status> TWOmxBufferProducer::setDequeueTimeout(int64_t timeoutNs) {
+    return toStatus(mBase->setDequeueTimeout(timeoutNs));
+}
+
+Return<void> TWOmxBufferProducer::getLastQueuedBuffer(
+        getLastQueuedBuffer_cb _hidl_cb) {
+    sp<GraphicBuffer> lOutBuffer = new GraphicBuffer();
+    sp<Fence> lOutFence = new Fence();
+    float lOutTransformMatrix[16];
+    status_t status = mBase->getLastQueuedBuffer(
+            &lOutBuffer, &lOutFence, lOutTransformMatrix);
+
+    AnwBuffer tOutBuffer;
+    if (lOutBuffer != nullptr) {
+        wrapAs(&tOutBuffer, *lOutBuffer);
+    }
+    hidl_handle tOutFence;
+    native_handle_t* nh = nullptr;
+    if ((lOutFence == nullptr) || !wrapAs(&tOutFence, &nh, *lOutFence)) {
+        ALOGE("TWOmxBufferProducer::getLastQueuedBuffer - "
+                "Invalid output fence");
+        _hidl_cb(toStatus(status),
+                tOutBuffer,
+                tOutFence,
+                hidl_array<float, 16>());
+        return Void();
+    }
+    hidl_array<float, 16> tOutTransformMatrix(lOutTransformMatrix);
+
+    _hidl_cb(toStatus(status), tOutBuffer, tOutFence, tOutTransformMatrix);
+    native_handle_delete(nh);
+    return Void();
+}
+
+Return<void> TWOmxBufferProducer::getFrameTimestamps(
+        getFrameTimestamps_cb _hidl_cb) {
+    ::android::FrameEventHistoryDelta lDelta;
+    mBase->getFrameTimestamps(&lDelta);
+
+    FrameEventHistoryDelta tDelta;
+    std::vector<std::vector<native_handle_t*> > nhAA;
+    if (!wrapAs(&tDelta, &nhAA, lDelta)) {
+        ALOGE("TWOmxBufferProducer::getFrameTimestamps - "
+                "Invalid output frame timestamps");
+        _hidl_cb(tDelta);
+        return Void();
+    }
+
+    _hidl_cb(tDelta);
+    for (auto& nhA : nhAA) {
+        for (auto& nh : nhA) {
+            native_handle_delete(nh);
+        }
+    }
+    return Void();
+}
+
+Return<void> TWOmxBufferProducer::getUniqueId(getUniqueId_cb _hidl_cb) {
+    uint64_t outId;
+    status_t status = mBase->getUniqueId(&outId);
+    _hidl_cb(toStatus(status), outId);
+    return Void();
+}
+
+// LWOmxBufferProducer
+
+LWOmxBufferProducer::LWOmxBufferProducer(sp<IOmxBufferProducer> const& base) :
+    mBase(base) {
+}
+
+status_t LWOmxBufferProducer::requestBuffer(int slot, sp<GraphicBuffer>* buf) {
+    *buf = new GraphicBuffer();
+    status_t fnStatus;
+    status_t transStatus = toStatusT(mBase->requestBuffer(
+            static_cast<int32_t>(slot),
+            [&fnStatus, &buf] (Status status, AnwBuffer const& buffer) {
+                fnStatus = toStatusT(status);
+                if (!convertTo(buf->get(), buffer)) {
+                    fnStatus = fnStatus == NO_ERROR ? BAD_VALUE : fnStatus;
+                }
+            }));
+    return transStatus == NO_ERROR ? fnStatus : transStatus;
+}
+
+status_t LWOmxBufferProducer::setMaxDequeuedBufferCount(
+        int maxDequeuedBuffers) {
+    return toStatusT(mBase->setMaxDequeuedBufferCount(
+            static_cast<int32_t>(maxDequeuedBuffers)));
+}
+
+status_t LWOmxBufferProducer::setAsyncMode(bool async) {
+    return toStatusT(mBase->setAsyncMode(async));
+}
+
+status_t LWOmxBufferProducer::dequeueBuffer(
+        int* slot, sp<Fence>* fence,
+        uint32_t w, uint32_t h, ::android::PixelFormat format,
+        uint32_t usage, FrameEventHistoryDelta* outTimestamps) {
+    *fence = new Fence();
+    status_t fnStatus;
+    status_t transStatus = toStatusT(mBase->dequeueBuffer(
+            w, h, static_cast<PixelFormat>(format), usage,
+            outTimestamps != nullptr,
+            [&fnStatus, slot, fence, outTimestamps] (
+                    Status status,
+                    int32_t tSlot,
+                    hidl_handle const& tFence,
+                    IOmxBufferProducer::FrameEventHistoryDelta const& tTs) {
+                fnStatus = toStatusT(status);
+                *slot = tSlot;
+                if (!convertTo(fence->get(), tFence)) {
+                    ALOGE("LWOmxBufferProducer::dequeueBuffer - "
+                            "Invalid output fence");
+                    fnStatus = fnStatus == NO_ERROR ? BAD_VALUE : fnStatus;
+                }
+                if (outTimestamps && !convertTo(outTimestamps, tTs)) {
+                    ALOGE("LWOmxBufferProducer::dequeueBuffer - "
+                            "Invalid output timestamps");
+                    fnStatus = fnStatus == NO_ERROR ? BAD_VALUE : fnStatus;
+                }
+            }));
+    return transStatus == NO_ERROR ? fnStatus : transStatus;
+}
+
+status_t LWOmxBufferProducer::detachBuffer(int slot) {
+    return toStatusT(mBase->detachBuffer(static_cast<int>(slot)));
+}
+
+status_t LWOmxBufferProducer::detachNextBuffer(
+        sp<GraphicBuffer>* outBuffer, sp<Fence>* outFence) {
+    *outBuffer = new GraphicBuffer();
+    *outFence = new Fence();
+    status_t fnStatus;
+    status_t transStatus = toStatusT(mBase->detachNextBuffer(
+            [&fnStatus, outBuffer, outFence] (
+                    Status status,
+                    AnwBuffer const& tBuffer,
+                    hidl_handle const& tFence) {
+                fnStatus = toStatusT(status);
+                if (!convertTo(outFence->get(), tFence)) {
+                    ALOGE("LWOmxBufferProducer::detachNextBuffer - "
+                            "Invalid output fence");
+                    fnStatus = fnStatus == NO_ERROR ? BAD_VALUE : fnStatus;
+                }
+                if (!convertTo(outBuffer->get(), tBuffer)) {
+                    ALOGE("LWOmxBufferProducer::detachNextBuffer - "
+                            "Invalid output buffer");
+                    fnStatus = fnStatus == NO_ERROR ? BAD_VALUE : fnStatus;
+                }
+            }));
+    return transStatus == NO_ERROR ? fnStatus : transStatus;
+}
+
+status_t LWOmxBufferProducer::attachBuffer(
+        int* outSlot, const sp<GraphicBuffer>& buffer) {
+    AnwBuffer tBuffer;
+    wrapAs(&tBuffer, *buffer);
+    status_t fnStatus;
+    status_t transStatus = toStatusT(mBase->attachBuffer(tBuffer,
+            [&fnStatus, outSlot] (Status status, int32_t slot) {
+                fnStatus = toStatusT(status);
+                *outSlot = slot;
+            }));
+    return transStatus == NO_ERROR ? fnStatus : transStatus;
+}
+
+status_t LWOmxBufferProducer::queueBuffer(
+        int slot,
+        const QueueBufferInput& input,
+        QueueBufferOutput* output) {
+    IOmxBufferProducer::QueueBufferInput tInput;
+    native_handle_t* nh;
+    if (!wrapAs(&tInput, &nh, input)) {
+        ALOGE("LWOmxBufferProducer::queueBuffer - Invalid input");
+        return BAD_VALUE;
+    }
+    status_t fnStatus;
+    status_t transStatus = toStatusT(mBase->queueBuffer(slot, tInput,
+            [&fnStatus, output] (
+                    Status status,
+                    IOmxBufferProducer::QueueBufferOutput const& tOutput) {
+                fnStatus = toStatusT(status);
+                if (!convertTo(output, tOutput)) {
+                    ALOGE("LWOmxBufferProducer::queueBuffer - "
+                            "Invalid output");
+                    fnStatus = fnStatus == NO_ERROR ? BAD_VALUE : fnStatus;
+                }
+            }));
+    native_handle_delete(nh);
+    return transStatus == NO_ERROR ? fnStatus : transStatus;
+}
+
+status_t LWOmxBufferProducer::cancelBuffer(int slot, const sp<Fence>& fence) {
+    hidl_handle tFence;
+    native_handle_t* nh = nullptr;
+    if ((fence == nullptr) || !wrapAs(&tFence, &nh, *fence)) {
+        ALOGE("LWOmxBufferProducer::cancelBuffer - Invalid input fence");
+        return BAD_VALUE;
+    }
+
+    status_t status = toStatusT(mBase->cancelBuffer(
+            static_cast<int32_t>(slot), tFence));
+    native_handle_delete(nh);
+    return status;
+}
+
+int LWOmxBufferProducer::query(int what, int* value) {
+    int result;
+    status_t transStatus = toStatusT(mBase->query(
+            static_cast<int32_t>(what),
+            [&result, value] (int32_t tResult, int32_t tValue) {
+                result = static_cast<int>(tResult);
+                *value = static_cast<int>(tValue);
+            }));
+    return transStatus == NO_ERROR ? result : static_cast<int>(transStatus);
+}
+
+status_t LWOmxBufferProducer::connect(
+        const sp<IProducerListener>& listener, int api,
+        bool producerControlledByApp, QueueBufferOutput* output) {
+    sp<IOmxProducerListener> tListener = listener == nullptr ?
+            nullptr : new TWOmxProducerListener(listener);
+    status_t fnStatus;
+    status_t transStatus = toStatusT(mBase->connect(
+            tListener, static_cast<int32_t>(api), producerControlledByApp,
+            [&fnStatus, output] (
+                    Status status,
+                    IOmxBufferProducer::QueueBufferOutput const& tOutput) {
+                fnStatus = toStatusT(status);
+                if (!convertTo(output, tOutput)) {
+                    ALOGE("LWOmxBufferProducer::connect - Invalid output");
+                    fnStatus = fnStatus == NO_ERROR ? BAD_VALUE : fnStatus;
+                }
+            }));
+    return transStatus == NO_ERROR ? fnStatus : transStatus;
+}
+
+status_t LWOmxBufferProducer::disconnect(int api, DisconnectMode mode) {
+    return toStatusT(mBase->disconnect(
+            static_cast<int32_t>(api), toOmxDisconnectMode(mode)));
+}
+
+status_t LWOmxBufferProducer::setSidebandStream(
+        const sp<NativeHandle>& stream) {
+    return toStatusT(mBase->setSidebandStream(stream->handle()));
+}
+
+void LWOmxBufferProducer::allocateBuffers(uint32_t width, uint32_t height,
+        ::android::PixelFormat format, uint32_t usage) {
+    mBase->allocateBuffers(
+            width, height, static_cast<PixelFormat>(format), usage);
+}
+
+status_t LWOmxBufferProducer::allowAllocation(bool allow) {
+    return toStatusT(mBase->allowAllocation(allow));
+}
+
+status_t LWOmxBufferProducer::setGenerationNumber(uint32_t generationNumber) {
+    return toStatusT(mBase->setGenerationNumber(generationNumber));
+}
+
+String8 LWOmxBufferProducer::getConsumerName() const {
+    String8 lName;
+    mBase->getConsumerName([&lName] (hidl_string const& name) {
+                lName = name.c_str();
+            });
+    return lName;
+}
+
+status_t LWOmxBufferProducer::setSharedBufferMode(bool sharedBufferMode) {
+    return toStatusT(mBase->setSharedBufferMode(sharedBufferMode));
+}
+
+status_t LWOmxBufferProducer::setAutoRefresh(bool autoRefresh) {
+    return toStatusT(mBase->setAutoRefresh(autoRefresh));
+}
+
+status_t LWOmxBufferProducer::setDequeueTimeout(nsecs_t timeout) {
+    return toStatusT(mBase->setDequeueTimeout(static_cast<int64_t>(timeout)));
+}
+
+status_t LWOmxBufferProducer::getLastQueuedBuffer(
+        sp<GraphicBuffer>* outBuffer,
+        sp<Fence>* outFence,
+        float outTransformMatrix[16]) {
+    status_t fnStatus;
+    status_t transStatus = toStatusT(mBase->getLastQueuedBuffer(
+            [&fnStatus, outBuffer, outFence, &outTransformMatrix] (
+                    Status status,
+                    AnwBuffer const& buffer,
+                    hidl_handle const& fence,
+                    hidl_array<float, 16> const& transformMatrix) {
+                fnStatus = toStatusT(status);
+                *outBuffer = new GraphicBuffer();
+                if (!convertTo(outBuffer->get(), buffer)) {
+                    ALOGE("LWOmxBufferProducer::getLastQueuedBuffer - "
+                            "Invalid output buffer");
+                    fnStatus = fnStatus == NO_ERROR ? BAD_VALUE : fnStatus;
+                }
+                *outFence = new Fence();
+                if (!convertTo(outFence->get(), fence)) {
+                    ALOGE("LWOmxBufferProducer::getLastQueuedBuffer - "
+                            "Invalid output fence");
+                    fnStatus = fnStatus == NO_ERROR ? BAD_VALUE : fnStatus;
+                }
+                std::copy(transformMatrix.data(),
+                        transformMatrix.data() + 16,
+                        outTransformMatrix);
+            }));
+    return transStatus == NO_ERROR ? fnStatus : transStatus;
+}
+
+void LWOmxBufferProducer::getFrameTimestamps(FrameEventHistoryDelta* outDelta) {
+    mBase->getFrameTimestamps([outDelta] (
+            IOmxBufferProducer::FrameEventHistoryDelta const& tDelta) {
+                convertTo(outDelta, tDelta);
+            });
+}
+
+status_t LWOmxBufferProducer::getUniqueId(uint64_t* outId) const {
+    status_t fnStatus;
+    status_t transStatus = toStatusT(mBase->getUniqueId(
+            [&fnStatus, outId] (Status status, uint64_t id) {
+                fnStatus = toStatusT(status);
+                *outId = id;
+            }));
+    return transStatus == NO_ERROR ? fnStatus : transStatus;
+}
+
+}  // namespace utils
+}  // namespace V1_0
+}  // namespace omx
+}  // namespace media
+}  // namespace hardware
+}  // namespace android
diff --git a/media/libmedia/omx/1.0/WOmxBufferSource.cpp b/media/libmedia/omx/1.0/WOmxBufferSource.cpp
new file mode 100644
index 0000000..7cca5bd
--- /dev/null
+++ b/media/libmedia/omx/1.0/WOmxBufferSource.cpp
@@ -0,0 +1,109 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <utils/String8.h>
+
+#include <media/omx/1.0/WOmxBufferSource.h>
+#include <media/omx/1.0/Conversion.h>
+
+namespace android {
+namespace hardware {
+namespace media {
+namespace omx {
+namespace V1_0 {
+namespace utils {
+
+// LWOmxBufferSource
+LWOmxBufferSource::LWOmxBufferSource(sp<IOmxBufferSource> const& base) :
+    mBase(base) {
+}
+
+::android::binder::Status LWOmxBufferSource::onOmxExecuting() {
+    return toBinderStatus(mBase->onOmxExecuting());
+}
+
+::android::binder::Status LWOmxBufferSource::onOmxIdle() {
+    return toBinderStatus(mBase->onOmxIdle());
+}
+
+::android::binder::Status LWOmxBufferSource::onOmxLoaded() {
+    return toBinderStatus(mBase->onOmxLoaded());
+}
+
+::android::binder::Status LWOmxBufferSource::onInputBufferAdded(
+        int32_t bufferId) {
+    return toBinderStatus(mBase->onInputBufferAdded(
+            static_cast<uint32_t>(bufferId)));
+}
+
+::android::binder::Status LWOmxBufferSource::onInputBufferEmptied(
+        int32_t bufferId, OMXFenceParcelable const& fenceParcel) {
+    hidl_handle fence;
+    native_handle_t* fenceNh;
+    if (!wrapAs(&fence, &fenceNh, fenceParcel)) {
+        return ::android::binder::Status::fromExceptionCode(
+                ::android::binder::Status::EX_BAD_PARCELABLE,
+                "Invalid fence");
+    }
+    ::android::binder::Status status = toBinderStatus(
+            mBase->onInputBufferEmptied(
+            static_cast<uint32_t>(bufferId), fence));
+    native_handle_close(fenceNh);
+    native_handle_delete(fenceNh);
+    return status;
+}
+
+// TWOmxBufferSource
+TWOmxBufferSource::TWOmxBufferSource(sp<IOMXBufferSource> const& base) :
+    mBase(base) {
+}
+
+Return<void> TWOmxBufferSource::onOmxExecuting() {
+    mBase->onOmxExecuting();
+    return Void();
+}
+
+Return<void> TWOmxBufferSource::onOmxIdle() {
+    mBase->onOmxIdle();
+    return Void();
+}
+
+Return<void> TWOmxBufferSource::onOmxLoaded() {
+    mBase->onOmxLoaded();
+    return Void();
+}
+
+Return<void> TWOmxBufferSource::onInputBufferAdded(uint32_t buffer) {
+    mBase->onInputBufferAdded(int32_t(buffer));
+    return Void();
+}
+
+Return<void> TWOmxBufferSource::onInputBufferEmptied(
+        uint32_t buffer, hidl_handle const& fence) {
+    OMXFenceParcelable fenceParcelable;
+    if (!convertTo(&fenceParcelable, fence)) {
+        return Void();
+    }
+    mBase->onInputBufferEmptied(int32_t(buffer), fenceParcelable);
+    return Void();
+}
+
+}  // namespace utils
+}  // namespace V1_0
+}  // namespace omx
+}  // namespace media
+}  // namespace hardware
+}  // namespace android
diff --git a/media/libmedia/omx/1.0/WOmxNode.cpp b/media/libmedia/omx/1.0/WOmxNode.cpp
new file mode 100644
index 0000000..b5186b5
--- /dev/null
+++ b/media/libmedia/omx/1.0/WOmxNode.cpp
@@ -0,0 +1,437 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <algorithm>
+
+#include <media/omx/1.0/WOmxNode.h>
+#include <media/omx/1.0/WOmxBufferSource.h>
+#include <media/omx/1.0/Conversion.h>
+
+namespace android {
+namespace hardware {
+namespace media {
+namespace omx {
+namespace V1_0 {
+namespace utils {
+
+using ::android::hardware::Void;
+
+// LWOmxNode
+status_t LWOmxNode::freeNode() {
+    return toStatusT(mBase->freeNode());
+}
+
+status_t LWOmxNode::sendCommand(
+        OMX_COMMANDTYPE cmd, OMX_S32 param) {
+    return toStatusT(mBase->sendCommand(
+            toRawCommandType(cmd), param));
+}
+
+status_t LWOmxNode::getParameter(
+        OMX_INDEXTYPE index, void *params, size_t size) {
+    hidl_vec<uint8_t> tParams = inHidlBytes(params, size);
+    status_t fnStatus;
+    status_t transStatus = toStatusT(mBase->getParameter(
+            toRawIndexType(index),
+            tParams,
+            [&fnStatus, params, size](
+                    Status status, hidl_vec<uint8_t> const& outParams) {
+                fnStatus = toStatusT(status);
+                std::copy(
+                        outParams.data(),
+                        outParams.data() + outParams.size(),
+                        static_cast<uint8_t*>(params));
+            }));
+    return transStatus == NO_ERROR ? fnStatus : transStatus;
+}
+
+status_t LWOmxNode::setParameter(
+        OMX_INDEXTYPE index, const void *params, size_t size) {
+    hidl_vec<uint8_t> tParams = inHidlBytes(params, size);
+    return toStatusT(mBase->setParameter(
+            toRawIndexType(index), tParams));
+}
+
+status_t LWOmxNode::getConfig(
+        OMX_INDEXTYPE index, void *params, size_t size) {
+    hidl_vec<uint8_t> tParams = inHidlBytes(params, size);
+    status_t fnStatus;
+    status_t transStatus = toStatusT(mBase->getConfig(
+            toRawIndexType(index),
+            tParams,
+            [&fnStatus, params, size](
+                    Status status, hidl_vec<uint8_t> const& outParams) {
+                fnStatus = toStatusT(status);
+                std::copy(
+                        outParams.data(),
+                        outParams.data() + size,
+                        static_cast<uint8_t*>(params));
+            }));
+    return transStatus == NO_ERROR ? fnStatus : transStatus;
+}
+
+status_t LWOmxNode::setConfig(
+        OMX_INDEXTYPE index, const void *params, size_t size) {
+    hidl_vec<uint8_t> tParams = inHidlBytes(params, size);
+    return toStatusT(mBase->setConfig(toRawIndexType(index), tParams));
+}
+
+status_t LWOmxNode::setPortMode(
+        OMX_U32 port_index, IOMX::PortMode mode) {
+    return toStatusT(mBase->setPortMode(port_index, toHardwarePortMode(mode)));
+}
+
+status_t LWOmxNode::prepareForAdaptivePlayback(
+        OMX_U32 portIndex, OMX_BOOL enable,
+        OMX_U32 maxFrameWidth, OMX_U32 maxFrameHeight) {
+    return toStatusT(mBase->prepareForAdaptivePlayback(
+            portIndex, toRawBool(enable), maxFrameWidth, maxFrameHeight));
+}
+
+status_t LWOmxNode::configureVideoTunnelMode(
+        OMX_U32 portIndex, OMX_BOOL tunneled,
+        OMX_U32 audioHwSync, native_handle_t **sidebandHandle) {
+    status_t fnStatus;
+    status_t transStatus = toStatusT(mBase->configureVideoTunnelMode(
+            portIndex,
+            toRawBool(tunneled),
+            audioHwSync,
+            [&fnStatus, sidebandHandle](
+                    Status status, hidl_handle const& outSidebandHandle) {
+                fnStatus = toStatusT(status);
+                *sidebandHandle = outSidebandHandle == nullptr ?
+                        nullptr : native_handle_clone(outSidebandHandle);
+            }));
+    return transStatus == NO_ERROR ? fnStatus : transStatus;
+}
+
+status_t LWOmxNode::getGraphicBufferUsage(
+        OMX_U32 portIndex, OMX_U32* usage) {
+    status_t fnStatus;
+    status_t transStatus = toStatusT(mBase->getGraphicBufferUsage(
+            portIndex,
+            [&fnStatus, usage](
+                    Status status, uint32_t outUsage) {
+                fnStatus = toStatusT(status);
+                *usage = outUsage;
+            }));
+    return transStatus == NO_ERROR ? fnStatus : transStatus;
+}
+
+status_t LWOmxNode::setInputSurface(
+        const sp<IOMXBufferSource> &bufferSource) {
+    return toStatusT(mBase->setInputSurface(
+            new TWOmxBufferSource(bufferSource)));
+}
+
+status_t LWOmxNode::allocateSecureBuffer(
+        OMX_U32 portIndex, size_t size, buffer_id *buffer,
+        void **buffer_data, sp<NativeHandle> *native_handle) {
+    *buffer_data = nullptr;
+    status_t fnStatus;
+    status_t transStatus = toStatusT(mBase->allocateSecureBuffer(
+            portIndex,
+            static_cast<uint64_t>(size),
+            [&fnStatus, buffer, buffer_data, native_handle](
+                    Status status,
+                    uint32_t outBuffer,
+                    hidl_handle const& outNativeHandle) {
+                fnStatus = toStatusT(status);
+                *buffer = outBuffer;
+                *native_handle = NativeHandle::create(
+                        native_handle_clone(outNativeHandle), true);
+            }));
+    return transStatus == NO_ERROR ? fnStatus : transStatus;
+}
+
+status_t LWOmxNode::useBuffer(
+        OMX_U32 portIndex, const OMXBuffer &omxBuffer, buffer_id *buffer) {
+    CodecBuffer codecBuffer;
+    if (!wrapAs(&codecBuffer, omxBuffer)) {
+        return BAD_VALUE;
+    }
+    status_t fnStatus;
+    status_t transStatus = toStatusT(mBase->useBuffer(
+            portIndex,
+            codecBuffer,
+            [&fnStatus, buffer](Status status, uint32_t outBuffer) {
+                fnStatus = toStatusT(status);
+                *buffer = outBuffer;
+            }));
+    return transStatus == NO_ERROR ? fnStatus : transStatus;
+}
+
+status_t LWOmxNode::freeBuffer(
+        OMX_U32 portIndex, buffer_id buffer) {
+    return toStatusT(mBase->freeBuffer(portIndex, buffer));
+}
+
+status_t LWOmxNode::fillBuffer(
+        buffer_id buffer, const OMXBuffer &omxBuffer, int fenceFd) {
+    CodecBuffer codecBuffer;
+    if (!wrapAs(&codecBuffer, omxBuffer)) {
+        return BAD_VALUE;
+    }
+    native_handle_t* fenceNh = native_handle_create_from_fd(fenceFd);
+    if (!fenceNh) {
+        return NO_MEMORY;
+    }
+    status_t status = toStatusT(mBase->fillBuffer(
+            buffer, codecBuffer, fenceNh));
+    native_handle_close(fenceNh);
+    native_handle_delete(fenceNh);
+    return status;
+}
+
+status_t LWOmxNode::emptyBuffer(
+        buffer_id buffer, const OMXBuffer &omxBuffer,
+        OMX_U32 flags, OMX_TICKS timestamp, int fenceFd) {
+    CodecBuffer codecBuffer;
+    if (!wrapAs(&codecBuffer, omxBuffer)) {
+        return BAD_VALUE;
+    }
+    native_handle_t* fenceNh = native_handle_create_from_fd(fenceFd);
+    if (!fenceNh) {
+        return NO_MEMORY;
+    }
+    status_t status = toStatusT(mBase->emptyBuffer(
+            buffer,
+            codecBuffer,
+            flags,
+            toRawTicks(timestamp),
+            fenceNh));
+    native_handle_close(fenceNh);
+    native_handle_delete(fenceNh);
+    return status;
+}
+status_t LWOmxNode::getExtensionIndex(
+        const char *parameter_name,
+        OMX_INDEXTYPE *index) {
+    status_t fnStatus;
+    status_t transStatus = toStatusT(mBase->getExtensionIndex(
+            hidl_string(parameter_name),
+            [&fnStatus, index](Status status, uint32_t outIndex) {
+                fnStatus = toStatusT(status);
+                *index = toEnumIndexType(outIndex);
+            }));
+    return transStatus == NO_ERROR ? fnStatus : transStatus;
+}
+
+status_t LWOmxNode::dispatchMessage(const omx_message &lMsg) {
+    Message tMsg;
+    native_handle_t* nh;
+    if (!wrapAs(&tMsg, &nh, lMsg)) {
+        return NO_MEMORY;
+    }
+    status_t status = toStatusT(mBase->dispatchMessage(tMsg));
+    native_handle_close(nh);
+    native_handle_delete(nh);
+    return status;
+}
+
+// TODO: this is temporary, will be removed when quirks move to OMX side.
+status_t LWOmxNode::setQuirks(OMX_U32 quirks) {
+    return toStatusT(mBase->setQuirks(static_cast<uint32_t>(quirks)));;
+}
+
+// TWOmxNode
+TWOmxNode::TWOmxNode(sp<IOMXNode> const& base) : mBase(base) {
+}
+
+Return<Status> TWOmxNode::freeNode() {
+    return toStatus(mBase->freeNode());
+}
+
+Return<Status> TWOmxNode::sendCommand(uint32_t cmd, int32_t param) {
+    return toStatus(mBase->sendCommand(toEnumCommandType(cmd), param));
+}
+
+Return<void> TWOmxNode::getParameter(
+        uint32_t index, hidl_vec<uint8_t> const& inParams,
+        getParameter_cb _hidl_cb) {
+    hidl_vec<uint8_t> params(inParams);
+    Status status = toStatus(mBase->getParameter(
+            toEnumIndexType(index),
+            static_cast<void*>(params.data()),
+            params.size()));
+    _hidl_cb(status, params);
+    return Void();
+}
+
+Return<Status> TWOmxNode::setParameter(
+        uint32_t index, hidl_vec<uint8_t> const& inParams) {
+    hidl_vec<uint8_t> params(inParams);
+    return toStatus(mBase->setParameter(
+            toEnumIndexType(index),
+            static_cast<void const*>(params.data()),
+            params.size()));
+}
+
+Return<void> TWOmxNode::getConfig(
+        uint32_t index, const hidl_vec<uint8_t>& inConfig,
+        getConfig_cb _hidl_cb) {
+    hidl_vec<uint8_t> config(inConfig);
+    Status status = toStatus(mBase->getConfig(
+            toEnumIndexType(index),
+            static_cast<void*>(config.data()),
+            config.size()));
+    _hidl_cb(status, config);
+    return Void();
+}
+
+Return<Status> TWOmxNode::setConfig(
+        uint32_t index, const hidl_vec<uint8_t>& inConfig) {
+    hidl_vec<uint8_t> config(inConfig);
+    return toStatus(mBase->setConfig(
+            toEnumIndexType(index),
+            static_cast<void const*>(config.data()),
+            config.size()));
+}
+
+Return<Status> TWOmxNode::setPortMode(uint32_t portIndex, PortMode mode) {
+    return toStatus(mBase->setPortMode(portIndex, toIOMXPortMode(mode)));
+}
+
+Return<Status> TWOmxNode::prepareForAdaptivePlayback(
+        uint32_t portIndex, bool enable,
+        uint32_t maxFrameWidth, uint32_t maxFrameHeight) {
+    return toStatus(mBase->prepareForAdaptivePlayback(
+            portIndex,
+            toEnumBool(enable),
+            maxFrameWidth,
+            maxFrameHeight));
+}
+
+Return<void> TWOmxNode::configureVideoTunnelMode(
+        uint32_t portIndex, bool tunneled, uint32_t audioHwSync,
+        configureVideoTunnelMode_cb _hidl_cb) {
+    native_handle_t* sidebandHandle = nullptr;
+    Status status = toStatus(mBase->configureVideoTunnelMode(
+            portIndex,
+            toEnumBool(tunneled),
+            audioHwSync,
+            &sidebandHandle));
+    _hidl_cb(status, hidl_handle(sidebandHandle));
+    return Void();
+}
+
+Return<void> TWOmxNode::getGraphicBufferUsage(
+        uint32_t portIndex, getGraphicBufferUsage_cb _hidl_cb) {
+    OMX_U32 usage;
+    Status status = toStatus(mBase->getGraphicBufferUsage(
+            portIndex, &usage));
+    _hidl_cb(status, usage);
+    return Void();
+}
+
+Return<Status> TWOmxNode::setInputSurface(
+        const sp<IOmxBufferSource>& bufferSource) {
+    return toStatus(mBase->setInputSurface(new LWOmxBufferSource(
+            bufferSource)));
+}
+
+Return<void> TWOmxNode::allocateSecureBuffer(
+        uint32_t portIndex, uint64_t size,
+        allocateSecureBuffer_cb _hidl_cb) {
+    IOMX::buffer_id buffer;
+    void* bufferData;
+    sp<NativeHandle> nativeHandle;
+    Status status = toStatus(mBase->allocateSecureBuffer(
+            portIndex,
+            static_cast<size_t>(size),
+            &buffer,
+            &bufferData,
+            &nativeHandle));
+    _hidl_cb(status, buffer, nativeHandle->handle());
+    return Void();
+}
+
+Return<void> TWOmxNode::useBuffer(
+        uint32_t portIndex, const CodecBuffer& codecBuffer,
+        useBuffer_cb _hidl_cb) {
+    IOMX::buffer_id buffer;
+    OMXBuffer omxBuffer;
+    if (!convertTo(&omxBuffer, codecBuffer)) {
+        _hidl_cb(Status::BAD_VALUE, 0);
+        return Void();
+    }
+    Status status = toStatus(mBase->useBuffer(
+            portIndex, omxBuffer, &buffer));
+    _hidl_cb(status, buffer);
+    return Void();
+}
+
+Return<Status> TWOmxNode::freeBuffer(uint32_t portIndex, uint32_t buffer) {
+    return toStatus(mBase->freeBuffer(portIndex, buffer));
+}
+
+Return<Status> TWOmxNode::fillBuffer(
+        uint32_t buffer, const CodecBuffer& codecBuffer,
+        const hidl_handle& fence) {
+    OMXBuffer omxBuffer;
+    if (!convertTo(&omxBuffer, codecBuffer)) {
+        return Status::BAD_VALUE;
+    }
+    return toStatus(mBase->fillBuffer(
+            buffer,
+            omxBuffer,
+            dup(native_handle_read_fd(fence))));
+}
+
+Return<Status> TWOmxNode::emptyBuffer(
+        uint32_t buffer, const CodecBuffer& codecBuffer, uint32_t flags,
+        uint64_t timestampUs, const hidl_handle& fence) {
+    OMXBuffer omxBuffer;
+    if (!convertTo(&omxBuffer, codecBuffer)) {
+        return Status::BAD_VALUE;
+    }
+    return toStatus(mBase->emptyBuffer(
+            buffer,
+            omxBuffer,
+            flags,
+            toOMXTicks(timestampUs),
+            dup(native_handle_read_fd(fence))));
+}
+
+Return<void> TWOmxNode::getExtensionIndex(
+        const hidl_string& parameterName,
+        getExtensionIndex_cb _hidl_cb) {
+    OMX_INDEXTYPE index;
+    Status status = toStatus(mBase->getExtensionIndex(
+            parameterName, &index));
+    _hidl_cb(status, toRawIndexType(index));
+    return Void();
+}
+
+Return<Status> TWOmxNode::dispatchMessage(const Message& tMsg) {
+    omx_message lMsg;
+    if (!convertTo(&lMsg, tMsg)) {
+        return Status::BAD_VALUE;
+    }
+    return toStatus(mBase->dispatchMessage(lMsg));
+}
+
+Return<void> TWOmxNode::setQuirks(uint32_t quirks) {
+    mBase->setQuirks(static_cast<OMX_U32>(quirks));
+    return Void();
+}
+
+}  // namespace utils
+}  // namespace V1_0
+}  // namespace omx
+}  // namespace media
+}  // namespace hardware
+}  // namespace android
diff --git a/media/libmedia/omx/1.0/WOmxObserver.cpp b/media/libmedia/omx/1.0/WOmxObserver.cpp
new file mode 100644
index 0000000..fa0407f
--- /dev/null
+++ b/media/libmedia/omx/1.0/WOmxObserver.cpp
@@ -0,0 +1,77 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "WOmxObserver-utils"
+
+#include <vector>
+
+#include <utils/Log.h>
+#include <cutils/native_handle.h>
+#include <binder/Binder.h>
+
+#include <media/omx/1.0/WOmxObserver.h>
+#include <media/omx/1.0/Conversion.h>
+
+namespace android {
+namespace hardware {
+namespace media {
+namespace omx {
+namespace V1_0 {
+namespace utils {
+
+// LWOmxObserver
+LWOmxObserver::LWOmxObserver(sp<IOmxObserver> const& base) : mBase(base) {
+}
+
+void LWOmxObserver::onMessages(std::list<omx_message> const& lMessages) {
+    hidl_vec<Message> tMessages;
+    std::vector<native_handle_t*> handles(lMessages.size());
+    tMessages.resize(lMessages.size());
+    size_t i = 0;
+    for (auto const& message : lMessages) {
+        wrapAs(&tMessages[i], &handles[i], message);
+        ++i;
+    }
+    auto transResult = mBase->onMessages(tMessages);
+    if (!transResult.isOk()) {
+        ALOGE("LWOmxObserver::onMessages - Transaction failed");
+    }
+    for (auto& handle : handles) {
+        native_handle_close(handle);
+        native_handle_delete(handle);
+    }
+}
+
+// TWOmxObserver
+TWOmxObserver::TWOmxObserver(sp<IOMXObserver> const& base) : mBase(base) {
+}
+
+Return<void> TWOmxObserver::onMessages(const hidl_vec<Message>& tMessages) {
+    std::list<omx_message> lMessages;
+    for (size_t i = 0; i < tMessages.size(); ++i) {
+        lMessages.push_back(omx_message{});
+        convertTo(&lMessages.back(), tMessages[i]);
+    }
+    mBase->onMessages(lMessages);
+    return Return<void>();
+}
+
+}  // namespace utils
+}  // namespace V1_0
+}  // namespace omx
+}  // namespace media
+}  // namespace hardware
+}  // namespace android
diff --git a/media/libmedia/omx/1.0/WOmxProducerListener.cpp b/media/libmedia/omx/1.0/WOmxProducerListener.cpp
new file mode 100644
index 0000000..3ee381f
--- /dev/null
+++ b/media/libmedia/omx/1.0/WOmxProducerListener.cpp
@@ -0,0 +1,60 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <media/omx/1.0/WOmxProducerListener.h>
+
+namespace android {
+namespace hardware {
+namespace media {
+namespace omx {
+namespace V1_0 {
+namespace utils {
+
+// TWOmxProducerListener
+TWOmxProducerListener::TWOmxProducerListener(
+        sp<IProducerListener> const& base):
+    mBase(base) {
+}
+
+Return<void> TWOmxProducerListener::onBufferReleased() {
+    mBase->onBufferReleased();
+    return Void();
+}
+
+Return<bool> TWOmxProducerListener::needsReleaseNotify() {
+    return mBase->needsReleaseNotify();
+}
+
+// LWOmxProducerListener
+LWOmxProducerListener::LWOmxProducerListener(
+        sp<IOmxProducerListener> const& base):
+    mBase(base) {
+}
+
+void LWOmxProducerListener::onBufferReleased() {
+    mBase->onBufferReleased();
+}
+
+bool LWOmxProducerListener::needsReleaseNotify() {
+    return static_cast<bool>(mBase->needsReleaseNotify());
+}
+
+}  // namespace utils
+}  // namespace V1_0
+}  // namespace omx
+}  // namespace media
+}  // namespace hardware
+}  // namespace android
diff --git a/media/libmediaplayerservice/ActivityManager.cpp b/media/libmediaplayerservice/ActivityManager.cpp
index 60a209f..438d422 100644
--- a/media/libmediaplayerservice/ActivityManager.cpp
+++ b/media/libmediaplayerservice/ActivityManager.cpp
@@ -14,18 +14,14 @@
  * limitations under the License.
  */
 
-#include <unistd.h>
+#include <binder/IActivityManager.h>
 #include <binder/IBinder.h>
 #include <binder/IServiceManager.h>
-#include <binder/Parcel.h>
-#include <utils/String8.h>
 
 #include "ActivityManager.h"
 
 namespace android {
 
-const uint32_t OPEN_CONTENT_URI_TRANSACTION = IBinder::FIRST_CALL_TRANSACTION + 4;
-
 // Perform ContentProvider.openFile() on the given URI, returning
 // the resulting native file descriptor.  Returns < 0 on error.
 int openContentProviderFile(const String16& uri)
@@ -33,26 +29,10 @@
     int fd = -1;
 
     sp<IServiceManager> sm = defaultServiceManager();
-    sp<IBinder> am = sm->getService(String16("activity"));
+    sp<IBinder> binder = sm->getService(String16("activity"));
+    sp<IActivityManager> am = interface_cast<IActivityManager>(binder);
     if (am != NULL) {
-        Parcel data, reply;
-        data.writeInterfaceToken(String16("android.app.IActivityManager"));
-        data.writeString16(uri);
-        status_t ret = am->transact(OPEN_CONTENT_URI_TRANSACTION, data, &reply);
-        if (ret == NO_ERROR) {
-            int32_t exceptionCode = reply.readExceptionCode();
-            if (!exceptionCode) {
-                // Success is indicated here by a nonzero int followed by the fd;
-                // failure by a zero int with no data following.
-                if (reply.readInt32() != 0) {
-                    fd = dup(reply.readFileDescriptor());
-                }
-            } else {
-                // An exception was thrown back; fall through to return failure
-                ALOGD("openContentUri(%s) caught exception %d\n",
-                        String8(uri).string(), exceptionCode);
-            }
-        }
+        fd = am->openContentUri(uri);
     }
 
     return fd;
diff --git a/media/libmediaplayerservice/Android.mk b/media/libmediaplayerservice/Android.mk
index 93064c3..f7e1ff5 100644
--- a/media/libmediaplayerservice/Android.mk
+++ b/media/libmediaplayerservice/Android.mk
@@ -25,8 +25,9 @@
     liblog                      \
     libdl                       \
     libgui                      \
-    libmedia                    \
     libaudioclient              \
+    libmedia                    \
+    libmediadrm                 \
     libmediautils               \
     libmemunreachable           \
     libstagefright              \
@@ -35,6 +36,9 @@
     libstagefright_omx          \
     libstagefright_wfd          \
     libutils                    \
+    libnativewindow             \
+    libhidlbase                 \
+    android.hardware.media.omx@1.0 \
 
 LOCAL_STATIC_LIBRARIES :=       \
     libstagefright_nuplayer     \
@@ -48,14 +52,13 @@
     $(TOP)/frameworks/av/media/libstagefright/rtsp                  \
     $(TOP)/frameworks/av/media/libstagefright/wifi-display          \
     $(TOP)/frameworks/av/media/libstagefright/webm                  \
-    $(TOP)/frameworks/av/include/media                              \
+    $(LOCAL_PATH)/include/media                              \
     $(TOP)/frameworks/av/include/camera                             \
     $(TOP)/frameworks/native/include/media/openmax                  \
     $(TOP)/frameworks/native/include/media/hardware                 \
     $(TOP)/external/tremolo/Tremolo                                 \
 
 LOCAL_CFLAGS += -Werror -Wno-error=deprecated-declarations -Wall
-LOCAL_CLANG := true
 
 LOCAL_MODULE:= libmediaplayerservice
 
diff --git a/media/libmediaplayerservice/MediaPlayerFactory.cpp b/media/libmediaplayerservice/MediaPlayerFactory.cpp
index 605c710..0a9f791 100644
--- a/media/libmediaplayerservice/MediaPlayerFactory.cpp
+++ b/media/libmediaplayerservice/MediaPlayerFactory.cpp
@@ -26,7 +26,6 @@
 #include <media/stagefright/foundation/ADebug.h>
 #include <utils/Errors.h>
 #include <utils/misc.h>
-#include <../libstagefright/include/WVMExtractor.h>
 
 #include "MediaPlayerFactory.h"
 
diff --git a/media/libmediaplayerservice/MediaPlayerService.cpp b/media/libmediaplayerservice/MediaPlayerService.cpp
index 95c91d1..f3fc924 100644
--- a/media/libmediaplayerservice/MediaPlayerService.cpp
+++ b/media/libmediaplayerservice/MediaPlayerService.cpp
@@ -60,6 +60,7 @@
 #include <media/stagefright/Utils.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/ALooperRoster.h>
+#include <media/stagefright/SurfaceUtils.h>
 #include <mediautils/BatteryNotifier.h>
 
 #include <memunreachable/memunreachable.h>
@@ -577,7 +578,7 @@
     mLoop = false;
     mStatus = NO_INIT;
     mAudioSessionId = audioSessionId;
-    mUID = uid;
+    mUid = uid;
     mRetransmitEndpointValid = false;
     mAudioAttributes = NULL;
 
@@ -597,6 +598,7 @@
     if (mAudioAttributes != NULL) {
         free(mAudioAttributes);
     }
+    clearDeathNotifiers();
 }
 
 void MediaPlayerService::Client::disconnect()
@@ -643,7 +645,7 @@
     }
 
     if (p != NULL) {
-        p->setUID(mUID);
+        p->setUID(mUid);
     }
 
     return p;
@@ -654,12 +656,22 @@
         const sp<MediaPlayerBase>& listener,
         int which) {
     mService = service;
+    mOmx = nullptr;
+    mListener = listener;
+    mWhich = which;
+}
+
+MediaPlayerService::Client::ServiceDeathNotifier::ServiceDeathNotifier(
+        const sp<IOmx>& omx,
+        const sp<MediaPlayerBase>& listener,
+        int which) {
+    mService = nullptr;
+    mOmx = omx;
     mListener = listener;
     mWhich = which;
 }
 
 MediaPlayerService::Client::ServiceDeathNotifier::~ServiceDeathNotifier() {
-    mService->unlinkToDeath(this);
 }
 
 void MediaPlayerService::Client::ServiceDeathNotifier::binderDied(const wp<IBinder>& /*who*/) {
@@ -671,10 +683,43 @@
     }
 }
 
+void MediaPlayerService::Client::ServiceDeathNotifier::serviceDied(
+        uint64_t /* cookie */,
+        const wp<::android::hidl::base::V1_0::IBase>& /* who */) {
+    sp<MediaPlayerBase> listener = mListener.promote();
+    if (listener != NULL) {
+        listener->sendEvent(MEDIA_ERROR, MEDIA_ERROR_SERVER_DIED, mWhich);
+    } else {
+        ALOGW("listener for process %d death is gone", mWhich);
+    }
+}
+
+void MediaPlayerService::Client::ServiceDeathNotifier::unlinkToDeath() {
+    if (mService != nullptr) {
+        mService->unlinkToDeath(this);
+        mService = nullptr;
+    } else if (mOmx != nullptr) {
+        mOmx->unlinkToDeath(this);
+        mOmx = nullptr;
+    }
+}
+
+void MediaPlayerService::Client::clearDeathNotifiers() {
+    if (mExtractorDeathListener != nullptr) {
+        mExtractorDeathListener->unlinkToDeath();
+        mExtractorDeathListener = nullptr;
+    }
+    if (mCodecDeathListener != nullptr) {
+        mCodecDeathListener->unlinkToDeath();
+        mCodecDeathListener = nullptr;
+    }
+}
+
 sp<MediaPlayerBase> MediaPlayerService::Client::setDataSource_pre(
         player_type playerType)
 {
     ALOGV("player type = %d", playerType);
+    clearDeathNotifiers();
 
     // create the right type of player
     sp<MediaPlayerBase> p = createPlayer(playerType);
@@ -684,12 +729,34 @@
 
     sp<IServiceManager> sm = defaultServiceManager();
     sp<IBinder> binder = sm->getService(String16("media.extractor"));
+    if (binder == NULL) {
+        ALOGE("extractor service not available");
+        return NULL;
+    }
     mExtractorDeathListener = new ServiceDeathNotifier(binder, p, MEDIAEXTRACTOR_PROCESS_DEATH);
     binder->linkToDeath(mExtractorDeathListener);
 
-    binder = sm->getService(String16("media.codec"));
-    mCodecDeathListener = new ServiceDeathNotifier(binder, p, MEDIACODEC_PROCESS_DEATH);
-    binder->linkToDeath(mCodecDeathListener);
+    int32_t trebleOmx = property_get_int32("persist.media.treble_omx", -1);
+    if ((trebleOmx == 1) || ((trebleOmx == -1) &&
+            property_get_bool("persist.hal.binderization", 0))) {
+        // Treble IOmx
+        sp<IOmx> omx = IOmx::getService();
+        if (omx == nullptr) {
+            ALOGE("Treble IOmx not available");
+            return NULL;
+        }
+        mCodecDeathListener = new ServiceDeathNotifier(omx, p, MEDIACODEC_PROCESS_DEATH);
+        omx->linkToDeath(mCodecDeathListener, 0);
+    } else {
+        // Legacy IOMX
+        binder = sm->getService(String16("media.codec"));
+        if (binder == NULL) {
+            ALOGE("codec service not available");
+            return NULL;
+        }
+        mCodecDeathListener = new ServiceDeathNotifier(binder, p, MEDIACODEC_PROCESS_DEATH);
+        binder->linkToDeath(mCodecDeathListener);
+    }
 
     if (!p->hardwareOutput()) {
         Mutex::Autolock l(mLock);
@@ -837,11 +904,11 @@
 
 void MediaPlayerService::Client::disconnectNativeWindow() {
     if (mConnectedWindow != NULL) {
-        status_t err = native_window_api_disconnect(mConnectedWindow.get(),
-                NATIVE_WINDOW_API_MEDIA);
+        status_t err = nativeWindowDisconnect(
+                mConnectedWindow.get(), "disconnectNativeWindow");
 
         if (err != OK) {
-            ALOGW("native_window_api_disconnect returned an error: %s (%d)",
+            ALOGW("nativeWindowDisconnect returned an error: %s (%d)",
                     strerror(-err), err);
         }
     }
@@ -863,8 +930,7 @@
     sp<ANativeWindow> anw;
     if (bufferProducer != NULL) {
         anw = new Surface(bufferProducer, true /* controlledByApp */);
-        status_t err = native_window_api_connect(anw.get(),
-                NATIVE_WINDOW_API_MEDIA);
+        status_t err = nativeWindowConnect(anw.get(), "setVideoSurfaceTexture");
 
         if (err != OK) {
             ALOGE("setVideoSurfaceTexture failed: %d", err);
@@ -964,6 +1030,32 @@
     return OK;
 }
 
+status_t MediaPlayerService::Client::setBufferingSettings(
+        const BufferingSettings& buffering)
+{
+    ALOGV("[%d] setBufferingSettings{%s}",
+            mConnId, buffering.toString().string());
+    sp<MediaPlayerBase> p = getPlayer();
+    if (p == 0) return UNKNOWN_ERROR;
+    return p->setBufferingSettings(buffering);
+}
+
+status_t MediaPlayerService::Client::getDefaultBufferingSettings(
+        BufferingSettings* buffering /* nonnull */)
+{
+    sp<MediaPlayerBase> p = getPlayer();
+    // TODO: create mPlayer on demand.
+    if (p == 0) return UNKNOWN_ERROR;
+    status_t ret = p->getDefaultBufferingSettings(buffering);
+    if (ret == NO_ERROR) {
+        ALOGV("[%d] getDefaultBufferingSettings{%s}",
+                mConnId, buffering->toString().string());
+    } else {
+        ALOGV("[%d] getDefaultBufferingSettings returned %d", mConnId, ret);
+    }
+    return ret;
+}
+
 status_t MediaPlayerService::Client::prepareAsync()
 {
     ALOGV("[%d] prepareAsync", mConnId);
@@ -1113,12 +1205,48 @@
     return OK;
 }
 
-status_t MediaPlayerService::Client::seekTo(int msec)
+VolumeShaper::Status MediaPlayerService::Client::applyVolumeShaper(
+        const sp<VolumeShaper::Configuration>& configuration,
+        const sp<VolumeShaper::Operation>& operation) {
+    // for hardware output, call player instead
+    ALOGV("Client::applyVolumeShaper(%p)", this);
+    sp<MediaPlayerBase> p = getPlayer();
+    {
+        Mutex::Autolock l(mLock);
+        if (p != 0 && p->hardwareOutput()) {
+            // TODO: investigate internal implementation
+            return VolumeShaper::Status(INVALID_OPERATION);
+        }
+        if (mAudioOutput.get() != nullptr) {
+            return mAudioOutput->applyVolumeShaper(configuration, operation);
+        }
+    }
+    return VolumeShaper::Status(INVALID_OPERATION);
+}
+
+sp<VolumeShaper::State> MediaPlayerService::Client::getVolumeShaperState(int id) {
+    // for hardware output, call player instead
+    ALOGV("Client::getVolumeShaperState(%p)", this);
+    sp<MediaPlayerBase> p = getPlayer();
+    {
+        Mutex::Autolock l(mLock);
+        if (p != 0 && p->hardwareOutput()) {
+            // TODO: investigate internal implementation.
+            return nullptr;
+        }
+        if (mAudioOutput.get() != nullptr) {
+            return mAudioOutput->getVolumeShaperState(id);
+        }
+    }
+    return nullptr;
+}
+
+status_t MediaPlayerService::Client::seekTo(int msec, MediaPlayerSeekMode mode)
 {
-    ALOGV("[%d] seekTo(%d)", mConnId, msec);
+    ALOGV("[%d] seekTo(%d, %d)", mConnId, msec, mode);
     sp<MediaPlayerBase> p = getPlayer();
     if (p == 0) return UNKNOWN_ERROR;
-    return p->seekTo(msec);
+    return p->seekTo(msec, mode);
 }
 
 status_t MediaPlayerService::Client::reset()
@@ -1284,16 +1412,33 @@
     }
 
     sp<IMediaPlayerClient> c;
+    sp<Client> nextClient;
+    status_t errStartNext = NO_ERROR;
     {
         Mutex::Autolock l(client->mLock);
         c = client->mClient;
         if (msg == MEDIA_PLAYBACK_COMPLETE && client->mNextClient != NULL) {
+            nextClient = client->mNextClient;
+
             if (client->mAudioOutput != NULL)
                 client->mAudioOutput->switchToNextOutput();
-            client->mNextClient->start();
-            if (client->mNextClient->mClient != NULL) {
-                client->mNextClient->mClient->notify(
-                        MEDIA_INFO, MEDIA_INFO_STARTED_AS_NEXT, 0, obj);
+
+            errStartNext = nextClient->start();
+        }
+    }
+
+    if (nextClient != NULL) {
+        sp<IMediaPlayerClient> nc;
+        {
+            Mutex::Autolock l(nextClient->mLock);
+            nc = nextClient->mClient;
+        }
+        if (nc != NULL) {
+            if (errStartNext == NO_ERROR) {
+                nc->notify(MEDIA_INFO, MEDIA_INFO_STARTED_AS_NEXT, 0, obj);
+            } else {
+                nc->notify(MEDIA_ERROR, MEDIA_ERROR_UNKNOWN , 0, obj);
+                ALOGE("gapless:start playback for next track failed, err(%d)", errStartNext);
             }
         }
     }
@@ -1341,6 +1486,32 @@
     }
 }
 
+// Modular DRM
+status_t MediaPlayerService::Client::prepareDrm(const uint8_t uuid[16],
+        const Vector<uint8_t>& drmSessionId)
+{
+    ALOGV("[%d] prepareDrm", mConnId);
+    sp<MediaPlayerBase> p = getPlayer();
+    if (p == 0) return UNKNOWN_ERROR;
+
+    status_t ret = p->prepareDrm(uuid, drmSessionId);
+    ALOGV("prepareDrm ret: %d", ret);
+
+    return ret;
+}
+
+status_t MediaPlayerService::Client::releaseDrm()
+{
+    ALOGV("[%d] releaseDrm", mConnId);
+    sp<MediaPlayerBase> p = getPlayer();
+    if (p == 0) return UNKNOWN_ERROR;
+
+    status_t ret = p->releaseDrm();
+    ALOGV("releaseDrm ret: %d", ret);
+
+    return ret;
+}
+
 #if CALLBACK_ANTAGONIZER
 const int Antagonizer::interval = 10000; // 10 msecs
 
@@ -1378,7 +1549,7 @@
 
 #undef LOG_TAG
 #define LOG_TAG "AudioSink"
-MediaPlayerService::AudioOutput::AudioOutput(audio_session_t sessionId, int uid, int pid,
+MediaPlayerService::AudioOutput::AudioOutput(audio_session_t sessionId, uid_t uid, int pid,
         const audio_attributes_t* attr)
     : mCallback(NULL),
       mCallbackCookie(NULL),
@@ -1395,7 +1566,8 @@
       mPid(pid),
       mSendLevel(0.0),
       mAuxEffectId(0),
-      mFlags(AUDIO_OUTPUT_FLAG_NONE)
+      mFlags(AUDIO_OUTPUT_FLAG_NONE),
+      mVolumeHandler(new VolumeHandler())
 {
     ALOGV("AudioOutput(%d)", sessionId);
     if (attr != NULL) {
@@ -1513,57 +1685,45 @@
     }
 
     uint32_t numFramesPlayed;
-    int64_t numFramesPlayedAt;
+    int64_t numFramesPlayedAtUs;
     AudioTimestamp ts;
-    static const int64_t kStaleTimestamp100ms = 100000;
 
     status_t res = mTrack->getTimestamp(ts);
     if (res == OK) {                 // case 1: mixing audio tracks and offloaded tracks.
         numFramesPlayed = ts.mPosition;
-        numFramesPlayedAt = ts.mTime.tv_sec * 1000000LL + ts.mTime.tv_nsec / 1000;
-        const int64_t timestampAge = nowUs - numFramesPlayedAt;
-        if (timestampAge > kStaleTimestamp100ms) {
-            // This is an audio FIXME.
-            // getTimestamp returns a timestamp which may come from audio mixing threads.
-            // After pausing, the MixerThread may go idle, thus the mTime estimate may
-            // become stale. Assuming that the MixerThread runs 20ms, with FastMixer at 5ms,
-            // the max latency should be about 25ms with an average around 12ms (to be verified).
-            // For safety we use 100ms.
-            ALOGV("getTimestamp: returned stale timestamp nowUs(%lld) numFramesPlayedAt(%lld)",
-                    (long long)nowUs, (long long)numFramesPlayedAt);
-            numFramesPlayedAt = nowUs - kStaleTimestamp100ms;
-        }
-        //ALOGD("getTimestamp: OK %d %lld", numFramesPlayed, (long long)numFramesPlayedAt);
+        numFramesPlayedAtUs = ts.mTime.tv_sec * 1000000LL + ts.mTime.tv_nsec / 1000;
+        //ALOGD("getTimestamp: OK %d %lld", numFramesPlayed, (long long)numFramesPlayedAtUs);
     } else if (res == WOULD_BLOCK) { // case 2: transitory state on start of a new track
         numFramesPlayed = 0;
-        numFramesPlayedAt = nowUs;
+        numFramesPlayedAtUs = nowUs;
         //ALOGD("getTimestamp: WOULD_BLOCK %d %lld",
-        //        numFramesPlayed, (long long)numFramesPlayedAt);
+        //        numFramesPlayed, (long long)numFramesPlayedAtUs);
     } else {                         // case 3: transitory at new track or audio fast tracks.
         res = mTrack->getPosition(&numFramesPlayed);
         CHECK_EQ(res, (status_t)OK);
-        numFramesPlayedAt = nowUs;
-        numFramesPlayedAt += 1000LL * mTrack->latency() / 2; /* XXX */
-        //ALOGD("getPosition: %u %lld", numFramesPlayed, (long long)numFramesPlayedAt);
+        numFramesPlayedAtUs = nowUs;
+        numFramesPlayedAtUs += 1000LL * mTrack->latency() / 2; /* XXX */
+        //ALOGD("getPosition: %u %lld", numFramesPlayed, (long long)numFramesPlayedAtUs);
     }
 
     // CHECK_EQ(numFramesPlayed & (1 << 31), 0);  // can't be negative until 12.4 hrs, test
     // TODO: remove the (int32_t) casting below as it may overflow at 12.4 hours.
     int64_t durationUs = (int64_t)((int32_t)numFramesPlayed * 1000000LL / mSampleRateHz)
-            + nowUs - numFramesPlayedAt;
+            + nowUs - numFramesPlayedAtUs;
     if (durationUs < 0) {
         // Occurs when numFramesPlayed position is very small and the following:
         // (1) In case 1, the time nowUs is computed before getTimestamp() is called and
-        //     numFramesPlayedAt is greater than nowUs by time more than numFramesPlayed.
+        //     numFramesPlayedAtUs is greater than nowUs by time more than numFramesPlayed.
         // (2) In case 3, using getPosition and adding mAudioSink->latency() to
-        //     numFramesPlayedAt, by a time amount greater than numFramesPlayed.
+        //     numFramesPlayedAtUs, by a time amount greater than numFramesPlayed.
         //
         // Both of these are transitory conditions.
         ALOGV("getPlayedOutDurationUs: negative duration %lld set to zero", (long long)durationUs);
         durationUs = 0;
     }
     ALOGV("getPlayedOutDurationUs(%lld) nowUs(%lld) frames(%u) framesAt(%lld)",
-            (long long)durationUs, (long long)nowUs, numFramesPlayed, (long long)numFramesPlayedAt);
+            (long long)durationUs, (long long)nowUs,
+            numFramesPlayed, (long long)numFramesPlayedAtUs);
     return durationUs;
 }
 
@@ -1871,6 +2031,13 @@
     ALOGV("setVolume");
     t->setVolume(mLeftVolume, mRightVolume);
 
+    // Dispatch any queued VolumeShapers when the track was not open.
+    mVolumeHandler->forall([&t](const sp<VolumeShaper::Configuration> &configuration,
+            const sp<VolumeShaper::Operation> &operation) -> VolumeShaper::Status {
+        return t->applyVolumeShaper(configuration, operation);
+    });
+    mVolumeHandler->reset(); // After dispatching, clear VolumeShaper queue.
+
     mSampleRateHz = sampleRate;
     mFlags = flags;
     mMsecsPerFrame = 1E3f / (mPlaybackRate.mSpeed * sampleRate);
@@ -2107,6 +2274,32 @@
     return NO_ERROR;
 }
 
+VolumeShaper::Status MediaPlayerService::AudioOutput::applyVolumeShaper(
+                const sp<VolumeShaper::Configuration>& configuration,
+                const sp<VolumeShaper::Operation>& operation)
+{
+    Mutex::Autolock lock(mLock);
+    ALOGV("AudioOutput::applyVolumeShaper");
+
+    // We take ownership of the VolumeShaper if set before the track is created.
+    mVolumeHandler->setIdIfNecessary(configuration);
+    if (mTrack != 0) {
+        return mTrack->applyVolumeShaper(configuration, operation);
+    } else {
+        return mVolumeHandler->applyVolumeShaper(configuration, operation);
+    }
+}
+
+sp<VolumeShaper::State> MediaPlayerService::AudioOutput::getVolumeShaperState(int id)
+{
+    Mutex::Autolock lock(mLock);
+    if (mTrack != 0) {
+        return mTrack->getVolumeShaperState(id);
+    } else {
+        return mVolumeHandler->getVolumeShaperState(id);
+    }
+}
+
 // static
 void MediaPlayerService::AudioOutput::CallbackWrapper(
         int event, void *cookie, void *info) {
@@ -2352,7 +2545,7 @@
         return;
     }
 
-    int uid = IPCThreadState::self()->getCallingUid();
+    uid_t uid = IPCThreadState::self()->getCallingUid();
     if (uid == AID_MEDIA) {
         return;
     }
diff --git a/media/libmediaplayerservice/MediaPlayerService.h b/media/libmediaplayerservice/MediaPlayerService.h
index 601b046..009fe73 100644
--- a/media/libmediaplayerservice/MediaPlayerService.h
+++ b/media/libmediaplayerservice/MediaPlayerService.h
@@ -30,6 +30,8 @@
 #include <media/Metadata.h>
 #include <media/stagefright/foundation/ABase.h>
 
+#include <android/hardware/media/omx/1.0/IOmx.h>
+
 #include <system/audio.h>
 
 namespace android {
@@ -69,13 +71,14 @@
 class MediaPlayerService : public BnMediaPlayerService
 {
     class Client;
+    typedef ::android::hardware::media::omx::V1_0::IOmx IOmx;
 
     class AudioOutput : public MediaPlayerBase::AudioSink
     {
         class CallbackData;
 
      public:
-                                AudioOutput(audio_session_t sessionId, int uid, int pid,
+                                AudioOutput(audio_session_t sessionId, uid_t uid, int pid,
                                         const audio_attributes_t * attr);
         virtual                 ~AudioOutput();
 
@@ -129,6 +132,11 @@
         virtual status_t        setParameters(const String8& keyValuePairs);
         virtual String8         getParameters(const String8& keys);
 
+        virtual VolumeShaper::Status applyVolumeShaper(
+                                        const sp<VolumeShaper::Configuration>& configuration,
+                                        const sp<VolumeShaper::Operation>& operation) override;
+        virtual sp<VolumeShaper::State> getVolumeShaperState(int id) override;
+
     private:
         static void             setMinBufferCount();
         static void             CallbackWrapper(
@@ -152,11 +160,12 @@
         float                   mMsecsPerFrame;
         size_t                  mFrameSize;
         audio_session_t         mSessionId;
-        int                     mUid;
+        uid_t                   mUid;
         int                     mPid;
         float                   mSendLevel;
         int                     mAuxEffectId;
         audio_output_flags_t    mFlags;
+        sp<VolumeHandler>       mVolumeHandler;
         mutable Mutex           mLock;
 
         // static variables below not protected by mutex
@@ -288,6 +297,9 @@
         virtual void            disconnect();
         virtual status_t        setVideoSurfaceTexture(
                                         const sp<IGraphicBufferProducer>& bufferProducer);
+        virtual status_t        setBufferingSettings(const BufferingSettings& buffering) override;
+        virtual status_t        getDefaultBufferingSettings(
+                                        BufferingSettings* buffering /* nonnull */) override;
         virtual status_t        prepareAsync();
         virtual status_t        start();
         virtual status_t        stop();
@@ -298,7 +310,9 @@
         virtual status_t        setSyncSettings(const AVSyncSettings& rate, float videoFpsHint);
         virtual status_t        getSyncSettings(AVSyncSettings* rate /* nonnull */,
                                                 float* videoFps /* nonnull */);
-        virtual status_t        seekTo(int msec);
+        virtual status_t        seekTo(
+                int msec,
+                MediaPlayerSeekMode mode = MediaPlayerSeekMode::SEEK_PREVIOUS_SYNC);
         virtual status_t        getCurrentPosition(int* msec);
         virtual status_t        getDuration(int* msec);
         virtual status_t        reset();
@@ -318,6 +332,11 @@
         virtual status_t        getRetransmitEndpoint(struct sockaddr_in* endpoint);
         virtual status_t        setNextPlayer(const sp<IMediaPlayer>& player);
 
+        virtual VolumeShaper::Status applyVolumeShaper(
+                                        const sp<VolumeShaper::Configuration>& configuration,
+                                        const sp<VolumeShaper::Operation>& operation) override;
+        virtual sp<VolumeShaper::State> getVolumeShaperState(int id) override;
+
         sp<MediaPlayerBase>     createPlayer(player_type playerType);
 
         virtual status_t        setDataSource(
@@ -342,24 +361,40 @@
         virtual status_t        dump(int fd, const Vector<String16>& args);
 
                 audio_session_t getAudioSessionId() { return mAudioSessionId; }
+        // Modular DRM
+        virtual status_t prepareDrm(const uint8_t uuid[16], const Vector<uint8_t>& drmSessionId);
+        virtual status_t releaseDrm();
 
     private:
-        class ServiceDeathNotifier: public IBinder::DeathRecipient
+        class ServiceDeathNotifier:
+                public IBinder::DeathRecipient,
+                public ::android::hardware::hidl_death_recipient
         {
         public:
             ServiceDeathNotifier(
                     const sp<IBinder>& service,
                     const sp<MediaPlayerBase>& listener,
                     int which);
+            ServiceDeathNotifier(
+                    const sp<IOmx>& omx,
+                    const sp<MediaPlayerBase>& listener,
+                    int which);
             virtual ~ServiceDeathNotifier();
             virtual void binderDied(const wp<IBinder>& who);
+            virtual void serviceDied(
+                    uint64_t cookie,
+                    const wp<::android::hidl::base::V1_0::IBase>& who);
+            void unlinkToDeath();
 
         private:
             int mWhich;
             sp<IBinder> mService;
+            sp<IOmx> mOmx;
             wp<MediaPlayerBase> mListener;
         };
 
+        void clearDeathNotifiers();
+
         friend class MediaPlayerService;
                                 Client( const sp<MediaPlayerService>& service,
                                         pid_t pid,
@@ -402,7 +437,7 @@
                     int32_t                     mConnId;
                     audio_session_t             mAudioSessionId;
                     audio_attributes_t *        mAudioAttributes;
-                    uid_t                       mUID;
+                    uid_t                       mUid;
                     sp<ANativeWindow>           mConnectedWindow;
                     sp<IBinder>                 mConnectedWindowBinder;
                     struct sockaddr_in          mRetransmitEndpoint;
@@ -419,8 +454,8 @@
         // getMetadata clears this set.
         media::Metadata::Filter mMetadataUpdated;  // protected by mLock
 
-        sp<IBinder::DeathRecipient> mExtractorDeathListener;
-        sp<IBinder::DeathRecipient> mCodecDeathListener;
+        sp<ServiceDeathNotifier> mExtractorDeathListener;
+        sp<ServiceDeathNotifier> mCodecDeathListener;
 #if CALLBACK_ANTAGONIZER
                     Antagonizer*                mAntagonizer;
 #endif
diff --git a/media/libmediaplayerservice/MediaRecorderClient.cpp b/media/libmediaplayerservice/MediaRecorderClient.cpp
index 609b00d..c00a951 100644
--- a/media/libmediaplayerservice/MediaRecorderClient.cpp
+++ b/media/libmediaplayerservice/MediaRecorderClient.cpp
@@ -52,7 +52,7 @@
     return ok;
 }
 
-status_t MediaRecorderClient::setInputSurface(const sp<IGraphicBufferConsumer>& surface)
+status_t MediaRecorderClient::setInputSurface(const sp<PersistentSurface>& surface)
 {
     ALOGV("setInputSurface");
     Mutex::Autolock lock(mLock);
@@ -161,15 +161,26 @@
     return mRecorder->setAudioEncoder((audio_encoder)ae);
 }
 
-status_t MediaRecorderClient::setOutputFile(int fd, int64_t offset, int64_t length)
+status_t MediaRecorderClient::setOutputFile(int fd)
 {
-    ALOGV("setOutputFile(%d, %lld, %lld)", fd, (long long)offset, (long long)length);
+    ALOGV("setOutputFile(%d)", fd);
     Mutex::Autolock lock(mLock);
     if (mRecorder == NULL) {
         ALOGE("recorder is not initialized");
         return NO_INIT;
     }
-    return mRecorder->setOutputFile(fd, offset, length);
+    return mRecorder->setOutputFile(fd);
+}
+
+status_t MediaRecorderClient::setNextOutputFile(int fd)
+{
+    ALOGV("setNextOutputFile(%d)", fd);
+    Mutex::Autolock lock(mLock);
+    if (mRecorder == NULL) {
+        ALOGE("recorder is not initialized");
+        return NO_INIT;
+    }
+    return mRecorder->setNextOutputFile(fd);
 }
 
 status_t MediaRecorderClient::setVideoSize(int width, int height)
@@ -227,6 +238,17 @@
     return mRecorder->getMaxAmplitude(max);
 }
 
+status_t MediaRecorderClient::getMetrics(Parcel* reply)
+{
+    ALOGV("MediaRecorderClient::getMetrics");
+    Mutex::Autolock lock(mLock);
+    if (mRecorder == NULL) {
+        ALOGE("recorder is not initialized");
+        return NO_INIT;
+    }
+    return mRecorder->getMetrics(reply);
+}
+
 status_t MediaRecorderClient::start()
 {
     ALOGV("start");
@@ -317,6 +339,7 @@
         wp<MediaRecorderClient> client(this);
         mMediaPlayerService->removeMediaRecorderClient(client);
     }
+    clearDeathNotifiers();
     return NO_ERROR;
 }
 
@@ -340,15 +363,25 @@
         const sp<IMediaRecorderClient>& listener,
         int which) {
     mService = service;
+    mOmx = nullptr;
+    mListener = listener;
+    mWhich = which;
+}
+
+MediaRecorderClient::ServiceDeathNotifier::ServiceDeathNotifier(
+        const sp<IOmx>& omx,
+        const sp<IMediaRecorderClient>& listener,
+        int which) {
+    mService = nullptr;
+    mOmx = omx;
     mListener = listener;
     mWhich = which;
 }
 
 MediaRecorderClient::ServiceDeathNotifier::~ServiceDeathNotifier() {
-    mService->unlinkToDeath(this);
 }
 
-void  MediaRecorderClient::ServiceDeathNotifier::binderDied(const wp<IBinder>& /*who*/) {
+void MediaRecorderClient::ServiceDeathNotifier::binderDied(const wp<IBinder>& /*who*/) {
     sp<IMediaRecorderClient> listener = mListener.promote();
     if (listener != NULL) {
         listener->notify(MEDIA_ERROR, MEDIA_ERROR_SERVER_DIED, mWhich);
@@ -357,9 +390,42 @@
     }
 }
 
+void MediaRecorderClient::ServiceDeathNotifier::serviceDied(
+        uint64_t /* cookie */,
+        const wp<::android::hidl::base::V1_0::IBase>& /* who */) {
+    sp<IMediaRecorderClient> listener = mListener.promote();
+    if (listener != NULL) {
+        listener->notify(MEDIA_ERROR, MEDIA_ERROR_SERVER_DIED, mWhich);
+    } else {
+        ALOGW("listener for process %d death is gone", mWhich);
+    }
+}
+
+void MediaRecorderClient::ServiceDeathNotifier::unlinkToDeath() {
+    if (mService != nullptr) {
+        mService->unlinkToDeath(this);
+        mService = nullptr;
+    } else if (mOmx != nullptr) {
+        mOmx->unlinkToDeath(this);
+        mOmx = nullptr;
+    }
+}
+
+void MediaRecorderClient::clearDeathNotifiers() {
+    if (mCameraDeathListener != nullptr) {
+        mCameraDeathListener->unlinkToDeath();
+        mCameraDeathListener = nullptr;
+    }
+    if (mCodecDeathListener != nullptr) {
+        mCodecDeathListener->unlinkToDeath();
+        mCodecDeathListener = nullptr;
+    }
+}
+
 status_t MediaRecorderClient::setListener(const sp<IMediaRecorderClient>& listener)
 {
     ALOGV("setListener");
+    clearDeathNotifiers();
     Mutex::Autolock lock(mLock);
     if (mRecorder == NULL) {
         ALOGE("recorder is not initialized");
@@ -384,10 +450,25 @@
     }
     sCameraChecked = true;
 
-    binder = sm->getService(String16("media.codec"));
-    mCodecDeathListener = new ServiceDeathNotifier(binder, listener,
-            MediaPlayerService::MEDIACODEC_PROCESS_DEATH);
-    binder->linkToDeath(mCodecDeathListener);
+    int32_t trebleOmx = property_get_int32("persist.media.treble_omx", -1);
+    if ((trebleOmx == 1) || ((trebleOmx == -1) &&
+            property_get_bool("persist.hal.binderization", 0))) {
+        // Treble IOmx
+        sp<IOmx> omx = IOmx::getService();
+        if (omx == nullptr) {
+            ALOGE("Treble IOmx not available");
+            return NO_INIT;
+        }
+        mCodecDeathListener = new ServiceDeathNotifier(omx, listener,
+                MediaPlayerService::MEDIACODEC_PROCESS_DEATH);
+        omx->linkToDeath(mCodecDeathListener, 0);
+    } else {
+        // Legacy IOMX
+        binder = sm->getService(String16("media.codec"));
+        mCodecDeathListener = new ServiceDeathNotifier(binder, listener,
+                MediaPlayerService::MEDIACODEC_PROCESS_DEATH);
+        binder->linkToDeath(mCodecDeathListener);
+    }
 
     return OK;
 }
diff --git a/media/libmediaplayerservice/MediaRecorderClient.h b/media/libmediaplayerservice/MediaRecorderClient.h
index b2d0f0e..7868a91 100644
--- a/media/libmediaplayerservice/MediaRecorderClient.h
+++ b/media/libmediaplayerservice/MediaRecorderClient.h
@@ -20,31 +20,46 @@
 
 #include <media/IMediaRecorder.h>
 
+#include <android/hardware/media/omx/1.0/IOmx.h>
+
 namespace android {
 
 struct MediaRecorderBase;
 class MediaPlayerService;
 class ICameraRecordingProxy;
-class IGraphicBufferProducer;
 
 class MediaRecorderClient : public BnMediaRecorder
 {
-    class ServiceDeathNotifier: public IBinder::DeathRecipient
+    typedef ::android::hardware::media::omx::V1_0::IOmx IOmx;
+
+    class ServiceDeathNotifier :
+            public IBinder::DeathRecipient,
+            public ::android::hardware::hidl_death_recipient
     {
     public:
         ServiceDeathNotifier(
                 const sp<IBinder>& service,
                 const sp<IMediaRecorderClient>& listener,
                 int which);
+        ServiceDeathNotifier(
+                const sp<IOmx>& omx,
+                const sp<IMediaRecorderClient>& listener,
+                int which);
         virtual ~ServiceDeathNotifier();
         virtual void binderDied(const wp<IBinder>& who);
-
+        virtual void serviceDied(
+                uint64_t cookie,
+                const wp<::android::hidl::base::V1_0::IBase>& who);
+        void unlinkToDeath();
     private:
         int mWhich;
         sp<IBinder> mService;
+        sp<IOmx> mOmx;
         wp<IMediaRecorderClient> mListener;
     };
 
+    void clearDeathNotifiers();
+
 public:
     virtual     status_t   setCamera(const sp<hardware::ICamera>& camera,
                                     const sp<ICameraRecordingProxy>& proxy);
@@ -54,8 +69,8 @@
     virtual     status_t   setOutputFormat(int of);
     virtual     status_t   setVideoEncoder(int ve);
     virtual     status_t   setAudioEncoder(int ae);
-    virtual     status_t   setOutputFile(int fd, int64_t offset,
-                                                  int64_t length);
+    virtual     status_t   setOutputFile(int fd);
+    virtual     status_t   setNextOutputFile(int fd);
     virtual     status_t   setVideoSize(int width, int height);
     virtual     status_t   setVideoFrameRate(int frames_per_second);
     virtual     status_t   setParameters(const String8& params);
@@ -64,6 +79,7 @@
     virtual     status_t   setClientName(const String16& clientName);
     virtual     status_t   prepare();
     virtual     status_t   getMaxAmplitude(int* max);
+    virtual     status_t   getMetrics(Parcel* reply);
     virtual     status_t   start();
     virtual     status_t   stop();
     virtual     status_t   reset();
@@ -73,7 +89,7 @@
     virtual     status_t   close();
     virtual     status_t   release();
     virtual     status_t   dump(int fd, const Vector<String16>& args);
-    virtual     status_t   setInputSurface(const sp<IGraphicBufferConsumer>& surface);
+    virtual     status_t   setInputSurface(const sp<PersistentSurface>& surface);
     virtual     sp<IGraphicBufferProducer> querySurfaceMediaSource();
 
 private:
@@ -85,8 +101,8 @@
                                                                const String16& opPackageName);
     virtual                ~MediaRecorderClient();
 
-    sp<IBinder::DeathRecipient> mCameraDeathListener;
-    sp<IBinder::DeathRecipient> mCodecDeathListener;
+    sp<ServiceDeathNotifier> mCameraDeathListener;
+    sp<ServiceDeathNotifier> mCodecDeathListener;
 
     pid_t                  mPid;
     Mutex                  mLock;
diff --git a/media/libmediaplayerservice/StagefrightRecorder.cpp b/media/libmediaplayerservice/StagefrightRecorder.cpp
index cdb0a7b..73570c8 100644
--- a/media/libmediaplayerservice/StagefrightRecorder.cpp
+++ b/media/libmediaplayerservice/StagefrightRecorder.cpp
@@ -30,6 +30,7 @@
 #include <binder/IServiceManager.h>
 
 #include <media/IMediaPlayerService.h>
+#include <media/MediaAnalyticsItem.h>
 #include <media/stagefright/foundation/ABuffer.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/AMessage.h>
@@ -45,6 +46,7 @@
 #include <media/stagefright/MediaDefs.h>
 #include <media/stagefright/MetaData.h>
 #include <media/stagefright/MediaCodecSource.h>
+#include <media/stagefright/PersistentSurface.h>
 #include <media/MediaProfiles.h>
 #include <camera/CameraParameters.h>
 
@@ -64,6 +66,10 @@
 static const float kMinTypicalDisplayRefreshingRate = kTypicalDisplayRefreshingRate / 2;
 static const int kMaxNumVideoTemporalLayers = 8;
 
+// key for media statistics
+static const char *kKeyRecorder = "recorder";
+// attrs for media statistics
+//
 // To collect the encoder usage for the battery app
 static void addBatteryData(uint32_t params) {
     sp<IBinder> binder =
@@ -84,6 +90,8 @@
       mStarted(false) {
 
     ALOGV("Constructor");
+
+    mAnalyticsDirty = false;
     reset();
 }
 
@@ -94,6 +102,80 @@
     if (mLooper != NULL) {
         mLooper->stop();
     }
+
+    // log the current record, provided it has some information worth recording
+    if (mAnalyticsDirty && mAnalyticsItem != NULL) {
+        updateMetrics();
+        if (mAnalyticsItem->count() > 0) {
+            mAnalyticsItem->setFinalized(true);
+            mAnalyticsItem->selfrecord();
+        }
+        delete mAnalyticsItem;
+        mAnalyticsItem = NULL;
+    }
+}
+
+void StagefrightRecorder::updateMetrics() {
+    ALOGV("updateMetrics");
+
+    // we'll populate the values from the raw fields.
+    // (NOT going to populate as we go through the various set* ops)
+
+    // TBD mOutputFormat  = OUTPUT_FORMAT_THREE_GPP;
+    // TBD mAudioEncoder  = AUDIO_ENCODER_AMR_NB;
+    // TBD mVideoEncoder  = VIDEO_ENCODER_DEFAULT;
+    mAnalyticsItem->setInt32("ht", mVideoHeight);
+    mAnalyticsItem->setInt32("wid", mVideoWidth);
+    mAnalyticsItem->setInt32("frame-rate", mFrameRate);
+    mAnalyticsItem->setInt32("video-bitrate", mVideoBitRate);
+    mAnalyticsItem->setInt32("audio-samplerate", mSampleRate);
+    mAnalyticsItem->setInt32("audio-channels", mAudioChannels);
+    mAnalyticsItem->setInt32("audio-bitrate", mAudioBitRate);
+    // TBD mInterleaveDurationUs = 0;
+    mAnalyticsItem->setInt32("video-iframe-interval", mIFramesIntervalSec);
+    // TBD mAudioSourceNode = 0;
+    // TBD mUse64BitFileOffset = false;
+    mAnalyticsItem->setInt32("movie-timescale", mMovieTimeScale);
+    mAnalyticsItem->setInt32("audio-timescale", mAudioTimeScale);
+    mAnalyticsItem->setInt32("video-timescale", mVideoTimeScale);
+    // TBD mCameraId        = 0;
+    // TBD mStartTimeOffsetMs = -1;
+    mAnalyticsItem->setInt32("video-encoder-profile", mVideoEncoderProfile);
+    mAnalyticsItem->setInt32("video-encoder-level", mVideoEncoderLevel);
+    // TBD mMaxFileDurationUs = 0;
+    // TBD mMaxFileSizeBytes = 0;
+    // TBD mTrackEveryTimeDurationUs = 0;
+    mAnalyticsItem->setInt32("capture-fpsenable", mCaptureFpsEnable);
+    mAnalyticsItem->setInt32("capture-fps", mCaptureFps);
+    // TBD mTimeBetweenCaptureUs = -1;
+    // TBD mCameraSourceTimeLapse = NULL;
+    // TBD mMetaDataStoredInVideoBuffers = kMetadataBufferTypeInvalid;
+    // TBD mEncoderProfiles = MediaProfiles::getInstance();
+    mAnalyticsItem->setInt32("rotation", mRotationDegrees);
+    // PII mLatitudex10000 = -3600000;
+    // PII mLongitudex10000 = -3600000;
+    // TBD mTotalBitRate = 0;
+
+    // TBD: some duration information (capture, paused)
+    //
+
+}
+
+void StagefrightRecorder::resetMetrics() {
+    ALOGV("resetMetrics");
+    // flush anything we have, restart the record
+    if (mAnalyticsDirty && mAnalyticsItem != NULL) {
+        updateMetrics();
+        if (mAnalyticsItem->count() > 0) {
+            mAnalyticsItem->setFinalized(true);
+            mAnalyticsItem->selfrecord();
+        }
+        delete mAnalyticsItem;
+        mAnalyticsItem = NULL;
+    }
+    mAnalyticsItem = new MediaAnalyticsItem(kKeyRecorder);
+    (void) mAnalyticsItem->generateSessionID();
+    mAnalyticsDirty = false;
 }
 
 status_t StagefrightRecorder::init() {
@@ -248,17 +330,14 @@
 }
 
 status_t StagefrightRecorder::setInputSurface(
-        const sp<IGraphicBufferConsumer>& surface) {
+        const sp<PersistentSurface>& surface) {
     mPersistentSurface = surface;
 
     return OK;
 }
 
-status_t StagefrightRecorder::setOutputFile(int fd, int64_t offset, int64_t length) {
-    ALOGV("setOutputFile: %d, %lld, %lld", fd, (long long)offset, (long long)length);
-    // These don't make any sense, do they?
-    CHECK_EQ(offset, 0ll);
-    CHECK_EQ(length, 0ll);
+status_t StagefrightRecorder::setOutputFile(int fd) {
+    ALOGV("setOutputFile: %d", fd);
 
     if (fd < 0) {
         ALOGE("Invalid file descriptor: %d", fd);
@@ -276,6 +355,30 @@
     return OK;
 }
 
+status_t StagefrightRecorder::setNextOutputFile(int fd) {
+    Mutex::Autolock autolock(mLock);
+    // Only support MPEG4
+    if (mOutputFormat != OUTPUT_FORMAT_MPEG_4) {
+        ALOGE("Only MP4 file format supports setting next output file");
+        return INVALID_OPERATION;
+    }
+    ALOGV("setNextOutputFile: %d", fd);
+
+    if (fd < 0) {
+        ALOGE("Invalid file descriptor: %d", fd);
+        return -EBADF;
+    }
+
+    // start with a clean, empty file
+    ftruncate(fd, 0);
+    int nextFd = dup(fd);
+    if (mWriter == NULL) {
+        ALOGE("setNextOutputFile failed. Writer has been freed");
+        return INVALID_OPERATION;
+    }
+    return mWriter->setNextFd(nextFd);
+}
+
 // Attempt to parse an float literal optionally surrounded by whitespace,
 // returns true on success, false otherwise.
 static bool safe_strtof(const char *s, float *val) {
@@ -365,6 +468,7 @@
 
     // Additional check on the sample rate will be performed later.
     mSampleRate = sampleRate;
+
     return OK;
 }
 
@@ -377,6 +481,7 @@
 
     // Additional check on the number of channels will be performed later.
     mAudioChannels = channels;
+
     return OK;
 }
 
@@ -834,6 +939,8 @@
 }
 
 status_t StagefrightRecorder::prepare() {
+    ALOGV("prepare");
+    Mutex::Autolock autolock(mLock);
     if (mVideoSource == VIDEO_SOURCE_SURFACE) {
         return prepareInternal();
     }
@@ -842,6 +949,7 @@
 
 status_t StagefrightRecorder::start() {
     ALOGV("start");
+    Mutex::Autolock autolock(mLock);
     if (mOutputFd < 0) {
         ALOGE("Output file descriptor is invalid");
         return INVALID_OPERATION;
@@ -884,7 +992,10 @@
         case OUTPUT_FORMAT_RTP_AVP:
         case OUTPUT_FORMAT_MPEG2TS:
         {
-            status = mWriter->start();
+            sp<MetaData> meta = new MetaData;
+            int64_t startTimeUs = systemTime() / 1000;
+            meta->setInt64(kKeyTime, startTimeUs);
+            status = mWriter->start(meta.get());
             break;
         }
 
@@ -902,6 +1013,7 @@
     }
 
     if ((status == OK) && (!mStarted)) {
+        mAnalyticsDirty = true;
         mStarted = true;
 
         uint32_t params = IMediaPlayerService::kBatteryDataCodecStarted;
@@ -1784,15 +1896,17 @@
         return OK;
     }
 
+    mPauseStartTimeUs = systemTime() / 1000;
+    sp<MetaData> meta = new MetaData;
+    meta->setInt64(kKeyTime, mPauseStartTimeUs);
+
     if (mAudioEncoderSource != NULL) {
         mAudioEncoderSource->pause();
     }
     if (mVideoEncoderSource != NULL) {
-        mVideoEncoderSource->pause();
+        mVideoEncoderSource->pause(meta.get());
     }
 
-    mPauseStartTimeUs = systemTime() / 1000;
-
     return OK;
 }
 
@@ -1807,6 +1921,8 @@
         return OK;
     }
 
+    int64_t resumeStartTimeUs = systemTime() / 1000;
+
     int64_t bufferStartTimeUs = 0;
     bool allSourcesStarted = true;
     for (const auto &source : { mAudioEncoderSource, mVideoEncoderSource }) {
@@ -1827,18 +1943,20 @@
             mPauseStartTimeUs = bufferStartTimeUs;
         }
         // 30 ms buffer to avoid timestamp overlap
-        mTotalPausedDurationUs += (systemTime() / 1000) - mPauseStartTimeUs - 30000;
+        mTotalPausedDurationUs += resumeStartTimeUs - mPauseStartTimeUs - 30000;
     }
     double timeOffset = -mTotalPausedDurationUs;
     if (mCaptureFpsEnable) {
         timeOffset *= mCaptureFps / mFrameRate;
     }
+    sp<MetaData> meta = new MetaData;
+    meta->setInt64(kKeyTime, resumeStartTimeUs);
     for (const auto &source : { mAudioEncoderSource, mVideoEncoderSource }) {
         if (source == nullptr) {
             continue;
         }
         source->setInputBufferTimeOffset((int64_t)timeOffset);
-        source->start();
+        source->start(meta.get());
     }
     mPauseStartTimeUs = 0;
 
@@ -1847,6 +1965,7 @@
 
 status_t StagefrightRecorder::stop() {
     ALOGV("stop");
+    Mutex::Autolock autolock(mLock);
     status_t err = OK;
 
     if (mCaptureFpsEnable && mCameraSourceTimeLapse != NULL) {
@@ -1854,10 +1973,19 @@
         mCameraSourceTimeLapse = NULL;
     }
 
+    if (mVideoEncoderSource != NULL) {
+        int64_t stopTimeUs = systemTime() / 1000;
+        sp<MetaData> meta = new MetaData;
+        err = mVideoEncoderSource->setStopStimeUs(stopTimeUs);
+    }
+
     if (mWriter != NULL) {
         err = mWriter->stop();
         mWriter.clear();
     }
+
+    resetMetrics();
+
     mTotalPausedDurationUs = 0;
     mPauseStartTimeUs = 0;
 
@@ -1961,9 +2089,27 @@
     return OK;
 }
 
+status_t StagefrightRecorder::getMetrics(Parcel *reply) {
+    ALOGD("StagefrightRecorder::getMetrics");
+
+    if (reply == NULL) {
+        ALOGE("Null pointer argument");
+        return BAD_VALUE;
+    }
+
+    if (mAnalyticsItem == NULL) {
+        return UNKNOWN_ERROR;
+    }
+
+    updateMetrics();
+    mAnalyticsItem->writeToParcel(reply);
+    return OK;
+}
+
 status_t StagefrightRecorder::dump(
         int fd, const Vector<String16>& args) const {
     ALOGV("dump");
+    Mutex::Autolock autolock(mLock);
     const size_t SIZE = 256;
     char buffer[SIZE];
     String8 result;
diff --git a/media/libmediaplayerservice/StagefrightRecorder.h b/media/libmediaplayerservice/StagefrightRecorder.h
index 4dbd039..38377d2 100644
--- a/media/libmediaplayerservice/StagefrightRecorder.h
+++ b/media/libmediaplayerservice/StagefrightRecorder.h
@@ -18,6 +18,7 @@
 
 #define STAGEFRIGHT_RECORDER_H_
 
+#include <media/MediaAnalyticsItem.h>
 #include <media/MediaRecorderBase.h>
 #include <camera/CameraParameters.h>
 #include <utils/String8.h>
@@ -38,15 +39,11 @@
 class MetaData;
 struct AudioSource;
 class MediaProfiles;
-class IGraphicBufferConsumer;
-class IGraphicBufferProducer;
-class SurfaceMediaSource;
 struct ALooper;
 
 struct StagefrightRecorder : public MediaRecorderBase {
     explicit StagefrightRecorder(const String16 &opPackageName);
     virtual ~StagefrightRecorder();
-
     virtual status_t init();
     virtual status_t setAudioSource(audio_source_t as);
     virtual status_t setVideoSource(video_source vs);
@@ -57,8 +54,9 @@
     virtual status_t setVideoFrameRate(int frames_per_second);
     virtual status_t setCamera(const sp<hardware::ICamera>& camera, const sp<ICameraRecordingProxy>& proxy);
     virtual status_t setPreviewSurface(const sp<IGraphicBufferProducer>& surface);
-    virtual status_t setInputSurface(const sp<IGraphicBufferConsumer>& surface);
-    virtual status_t setOutputFile(int fd, int64_t offset, int64_t length);
+    virtual status_t setInputSurface(const sp<PersistentSurface>& surface);
+    virtual status_t setOutputFile(int fd);
+    virtual status_t setNextOutputFile(int fd);
     virtual status_t setParameters(const String8 &params);
     virtual status_t setListener(const sp<IMediaRecorderClient> &listener);
     virtual status_t setClientName(const String16 &clientName);
@@ -70,15 +68,17 @@
     virtual status_t close();
     virtual status_t reset();
     virtual status_t getMaxAmplitude(int *max);
+    virtual status_t getMetrics(Parcel *reply);
     virtual status_t dump(int fd, const Vector<String16> &args) const;
     // Querying a SurfaceMediaSourcer
     virtual sp<IGraphicBufferProducer> querySurfaceMediaSource() const;
 
 private:
+    mutable Mutex mLock;
     sp<hardware::ICamera> mCamera;
     sp<ICameraRecordingProxy> mCameraProxy;
     sp<IGraphicBufferProducer> mPreviewSurface;
-    sp<IGraphicBufferConsumer> mPersistentSurface;
+    sp<PersistentSurface> mPersistentSurface;
     sp<IMediaRecorderClient> mListener;
     String16 mClientName;
     uid_t mClientUid;
@@ -87,6 +87,11 @@
     int mOutputFd;
     sp<AudioSource> mAudioSourceNode;
 
+    MediaAnalyticsItem *mAnalyticsItem;
+    bool mAnalyticsDirty;
+    void resetMetrics();
+    void updateMetrics();
+
     audio_source_t mAudioSource;
     video_source mVideoSource;
     output_format mOutputFormat;
diff --git a/media/libmediaplayerservice/TestPlayerStub.h b/media/libmediaplayerservice/TestPlayerStub.h
index 55bf2c8..11fddf6 100644
--- a/media/libmediaplayerservice/TestPlayerStub.h
+++ b/media/libmediaplayerservice/TestPlayerStub.h
@@ -87,7 +87,11 @@
     virtual status_t stop()  {return mPlayer->stop();}
     virtual status_t pause()  {return mPlayer->pause();}
     virtual bool isPlaying() {return mPlayer->isPlaying();}
-    virtual status_t seekTo(int msec) {return mPlayer->seekTo(msec);}
+    virtual status_t seekTo(
+            int msec,
+            MediaPlayerSeekMode mode = MediaPlayerSeekMode::SEEK_PREVIOUS_SYNC) {
+        return mPlayer->seekTo(msec, mode);
+    }
     virtual status_t getCurrentPosition(int *p)  {
         return mPlayer->getCurrentPosition(p);
     }
diff --git a/media/libmediaplayerservice/include/MediaPlayerInterface.h b/media/libmediaplayerservice/include/MediaPlayerInterface.h
new file mode 100644
index 0000000..a01f7f2
--- /dev/null
+++ b/media/libmediaplayerservice/include/MediaPlayerInterface.h
@@ -0,0 +1,330 @@
+/*
+ * Copyright (C) 2007 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_MEDIAPLAYERINTERFACE_H
+#define ANDROID_MEDIAPLAYERINTERFACE_H
+
+#ifdef __cplusplus
+
+#include <sys/types.h>
+#include <utils/Errors.h>
+#include <utils/KeyedVector.h>
+#include <utils/String8.h>
+#include <utils/RefBase.h>
+
+#include <media/mediaplayer.h>
+#include <media/AudioResamplerPublic.h>
+#include <media/AudioSystem.h>
+#include <media/AudioTimestamp.h>
+#include <media/AVSyncSettings.h>
+#include <media/BufferingSettings.h>
+#include <media/Metadata.h>
+
+// Fwd decl to make sure everyone agrees that the scope of struct sockaddr_in is
+// global, and not in android::
+struct sockaddr_in;
+
+namespace android {
+
+class DataSource;
+class Parcel;
+class Surface;
+class IGraphicBufferProducer;
+
+template<typename T> class SortedVector;
+
+enum player_type {
+    STAGEFRIGHT_PLAYER = 3,
+    NU_PLAYER = 4,
+    // Test players are available only in the 'test' and 'eng' builds.
+    // The shared library with the test player is passed passed as an
+    // argument to the 'test:' url in the setDataSource call.
+    TEST_PLAYER = 5,
+};
+
+
+#define DEFAULT_AUDIOSINK_BUFFERCOUNT 4
+#define DEFAULT_AUDIOSINK_BUFFERSIZE 1200
+#define DEFAULT_AUDIOSINK_SAMPLERATE 44100
+
+// when the channel mask isn't known, use the channel count to derive a mask in AudioSink::open()
+#define CHANNEL_MASK_USE_CHANNEL_ORDER 0
+
+// duration below which we do not allow deep audio buffering
+#define AUDIO_SINK_MIN_DEEP_BUFFER_DURATION_US 5000000
+
+// callback mechanism for passing messages to MediaPlayer object
+typedef void (*notify_callback_f)(void* cookie,
+        int msg, int ext1, int ext2, const Parcel *obj);
+
+// abstract base class - use MediaPlayerInterface
+class MediaPlayerBase : public RefBase
+{
+public:
+    // AudioSink: abstraction layer for audio output
+    class AudioSink : public RefBase {
+    public:
+        enum cb_event_t {
+            CB_EVENT_FILL_BUFFER,   // Request to write more data to buffer.
+            CB_EVENT_STREAM_END,    // Sent after all the buffers queued in AF and HW are played
+                                    // back (after stop is called)
+            CB_EVENT_TEAR_DOWN      // The AudioTrack was invalidated due to use case change:
+                                    // Need to re-evaluate offloading options
+        };
+
+        // Callback returns the number of bytes actually written to the buffer.
+        typedef size_t (*AudioCallback)(
+                AudioSink *audioSink, void *buffer, size_t size, void *cookie,
+                        cb_event_t event);
+
+        virtual             ~AudioSink() {}
+        virtual bool        ready() const = 0; // audio output is open and ready
+        virtual ssize_t     bufferSize() const = 0;
+        virtual ssize_t     frameCount() const = 0;
+        virtual ssize_t     channelCount() const = 0;
+        virtual ssize_t     frameSize() const = 0;
+        virtual uint32_t    latency() const = 0;
+        virtual float       msecsPerFrame() const = 0;
+        virtual status_t    getPosition(uint32_t *position) const = 0;
+        virtual status_t    getTimestamp(AudioTimestamp &ts) const = 0;
+        virtual int64_t     getPlayedOutDurationUs(int64_t nowUs) const = 0;
+        virtual status_t    getFramesWritten(uint32_t *frameswritten) const = 0;
+        virtual audio_session_t getSessionId() const = 0;
+        virtual audio_stream_type_t getAudioStreamType() const = 0;
+        virtual uint32_t    getSampleRate() const = 0;
+        virtual int64_t     getBufferDurationInUs() const = 0;
+
+        // If no callback is specified, use the "write" API below to submit
+        // audio data.
+        virtual status_t    open(
+                uint32_t sampleRate, int channelCount, audio_channel_mask_t channelMask,
+                audio_format_t format=AUDIO_FORMAT_PCM_16_BIT,
+                int bufferCount=DEFAULT_AUDIOSINK_BUFFERCOUNT,
+                AudioCallback cb = NULL,
+                void *cookie = NULL,
+                audio_output_flags_t flags = AUDIO_OUTPUT_FLAG_NONE,
+                const audio_offload_info_t *offloadInfo = NULL,
+                bool doNotReconnect = false,
+                uint32_t suggestedFrameCount = 0) = 0;
+
+        virtual status_t    start() = 0;
+
+        /* Input parameter |size| is in byte units stored in |buffer|.
+         * Data is copied over and actual number of bytes written (>= 0)
+         * is returned, or no data is copied and a negative status code
+         * is returned (even when |blocking| is true).
+         * When |blocking| is false, AudioSink will immediately return after
+         * part of or full |buffer| is copied over.
+         * When |blocking| is true, AudioSink will wait to copy the entire
+         * buffer, unless an error occurs or the copy operation is
+         * prematurely stopped.
+         */
+        virtual ssize_t     write(const void* buffer, size_t size, bool blocking = true) = 0;
+
+        virtual void        stop() = 0;
+        virtual void        flush() = 0;
+        virtual void        pause() = 0;
+        virtual void        close() = 0;
+
+        virtual status_t    setPlaybackRate(const AudioPlaybackRate& rate) = 0;
+        virtual status_t    getPlaybackRate(AudioPlaybackRate* rate /* nonnull */) = 0;
+        virtual bool        needsTrailingPadding() { return true; }
+
+        virtual status_t    setParameters(const String8& /* keyValuePairs */) { return NO_ERROR; }
+        virtual String8     getParameters(const String8& /* keys */) { return String8::empty(); }
+
+        virtual VolumeShaper::Status applyVolumeShaper(
+                                    const sp<VolumeShaper::Configuration>& configuration,
+                                    const sp<VolumeShaper::Operation>& operation);
+        virtual sp<VolumeShaper::State> getVolumeShaperState(int id);
+    };
+
+                        MediaPlayerBase() : mCookie(0), mNotify(0) {}
+    virtual             ~MediaPlayerBase() {}
+    virtual status_t    initCheck() = 0;
+    virtual bool        hardwareOutput() = 0;
+
+    virtual status_t    setUID(uid_t /* uid */) {
+        return INVALID_OPERATION;
+    }
+
+    virtual status_t    setDataSource(
+            const sp<IMediaHTTPService> &httpService,
+            const char *url,
+            const KeyedVector<String8, String8> *headers = NULL) = 0;
+
+    virtual status_t    setDataSource(int fd, int64_t offset, int64_t length) = 0;
+
+    virtual status_t    setDataSource(const sp<IStreamSource>& /* source */) {
+        return INVALID_OPERATION;
+    }
+
+    virtual status_t    setDataSource(const sp<DataSource>& /* source */) {
+        return INVALID_OPERATION;
+    }
+
+    // pass the buffered IGraphicBufferProducer to the media player service
+    virtual status_t    setVideoSurfaceTexture(
+                                const sp<IGraphicBufferProducer>& bufferProducer) = 0;
+
+    virtual status_t    getDefaultBufferingSettings(
+                                BufferingSettings* buffering /* nonnull */) {
+        *buffering = BufferingSettings();
+        return OK;
+    }
+    virtual status_t    setBufferingSettings(const BufferingSettings& /* buffering */) {
+        return OK;
+    }
+
+    virtual status_t    prepare() = 0;
+    virtual status_t    prepareAsync() = 0;
+    virtual status_t    start() = 0;
+    virtual status_t    stop() = 0;
+    virtual status_t    pause() = 0;
+    virtual bool        isPlaying() = 0;
+    virtual status_t    setPlaybackSettings(const AudioPlaybackRate& rate) {
+        // by default, players only support setting rate to the default
+        if (!isAudioPlaybackRateEqual(rate, AUDIO_PLAYBACK_RATE_DEFAULT)) {
+            return BAD_VALUE;
+        }
+        return OK;
+    }
+    virtual status_t    getPlaybackSettings(AudioPlaybackRate* rate /* nonnull */) {
+        *rate = AUDIO_PLAYBACK_RATE_DEFAULT;
+        return OK;
+    }
+    virtual status_t    setSyncSettings(const AVSyncSettings& sync, float /* videoFps */) {
+        // By default, players only support setting sync source to default; all other sync
+        // settings are ignored. There is no requirement for getters to return set values.
+        if (sync.mSource != AVSYNC_SOURCE_DEFAULT) {
+            return BAD_VALUE;
+        }
+        return OK;
+    }
+    virtual status_t    getSyncSettings(
+                                AVSyncSettings* sync /* nonnull */, float* videoFps /* nonnull */) {
+        *sync = AVSyncSettings();
+        *videoFps = -1.f;
+        return OK;
+    }
+    virtual status_t    seekTo(
+            int msec, MediaPlayerSeekMode mode = MediaPlayerSeekMode::SEEK_PREVIOUS_SYNC) = 0;
+    virtual status_t    getCurrentPosition(int *msec) = 0;
+    virtual status_t    getDuration(int *msec) = 0;
+    virtual status_t    reset() = 0;
+    virtual status_t    setLooping(int loop) = 0;
+    virtual player_type playerType() = 0;
+    virtual status_t    setParameter(int key, const Parcel &request) = 0;
+    virtual status_t    getParameter(int key, Parcel *reply) = 0;
+
+    // default no-op implementation of optional extensions
+    virtual status_t setRetransmitEndpoint(const struct sockaddr_in* /* endpoint */) {
+        return INVALID_OPERATION;
+    }
+    virtual status_t getRetransmitEndpoint(struct sockaddr_in* /* endpoint */) {
+        return INVALID_OPERATION;
+    }
+    virtual status_t setNextPlayer(const sp<MediaPlayerBase>& /* next */) {
+        return OK;
+    }
+
+    // Invoke a generic method on the player by using opaque parcels
+    // for the request and reply.
+    //
+    // @param request Parcel that is positioned at the start of the
+    //                data sent by the java layer.
+    // @param[out] reply Parcel to hold the reply data. Cannot be null.
+    // @return OK if the call was successful.
+    virtual status_t    invoke(const Parcel& request, Parcel *reply) = 0;
+
+    // The Client in the MetadataPlayerService calls this method on
+    // the native player to retrieve all or a subset of metadata.
+    //
+    // @param ids SortedList of metadata ID to be fetch. If empty, all
+    //            the known metadata should be returned.
+    // @param[inout] records Parcel where the player appends its metadata.
+    // @return OK if the call was successful.
+    virtual status_t    getMetadata(const media::Metadata::Filter& /* ids */,
+                                    Parcel* /* records */) {
+        return INVALID_OPERATION;
+    };
+
+    void        setNotifyCallback(
+            void* cookie, notify_callback_f notifyFunc) {
+        Mutex::Autolock autoLock(mNotifyLock);
+        mCookie = cookie; mNotify = notifyFunc;
+    }
+
+    void        sendEvent(int msg, int ext1=0, int ext2=0,
+                          const Parcel *obj=NULL) {
+        notify_callback_f notifyCB;
+        void* cookie;
+        {
+            Mutex::Autolock autoLock(mNotifyLock);
+            notifyCB = mNotify;
+            cookie = mCookie;
+        }
+
+        if (notifyCB) notifyCB(cookie, msg, ext1, ext2, obj);
+    }
+
+    virtual status_t dump(int /* fd */, const Vector<String16>& /* args */) const {
+        return INVALID_OPERATION;
+    }
+
+    // Modular DRM
+    virtual status_t prepareDrm(const uint8_t uuid[16], const Vector<uint8_t>& drmSessionId) {
+        return INVALID_OPERATION;
+    }
+    virtual status_t releaseDrm() {
+        return INVALID_OPERATION;
+    }
+
+private:
+    friend class MediaPlayerService;
+
+    Mutex               mNotifyLock;
+    void*               mCookie;
+    notify_callback_f   mNotify;
+};
+
+// Implement this class for media players that use the AudioFlinger software mixer
+class MediaPlayerInterface : public MediaPlayerBase
+{
+public:
+    virtual             ~MediaPlayerInterface() { }
+    virtual bool        hardwareOutput() { return false; }
+    virtual void        setAudioSink(const sp<AudioSink>& audioSink) { mAudioSink = audioSink; }
+protected:
+    sp<AudioSink>       mAudioSink;
+};
+
+// Implement this class for media players that output audio directly to hardware
+class MediaPlayerHWInterface : public MediaPlayerBase
+{
+public:
+    virtual             ~MediaPlayerHWInterface() {}
+    virtual bool        hardwareOutput() { return true; }
+    virtual status_t    setVolume(float leftVolume, float rightVolume) = 0;
+    virtual status_t    setAudioStreamType(audio_stream_type_t streamType) = 0;
+};
+
+}; // namespace android
+
+#endif // __cplusplus
+
+
+#endif // ANDROID_MEDIAPLAYERINTERFACE_H
diff --git a/media/libmediaplayerservice/nuplayer/Android.mk b/media/libmediaplayerservice/nuplayer/Android.mk
index 3ea2159..56c558d 100644
--- a/media/libmediaplayerservice/nuplayer/Android.mk
+++ b/media/libmediaplayerservice/nuplayer/Android.mk
@@ -10,6 +10,7 @@
         NuPlayerDecoderBase.cpp         \
         NuPlayerDecoderPassThrough.cpp  \
         NuPlayerDriver.cpp              \
+        NuPlayerDrm.cpp                 \
         NuPlayerRenderer.cpp            \
         NuPlayerStreamListener.cpp      \
         RTSPSource.cpp                  \
@@ -32,9 +33,11 @@
 LOCAL_CFLAGS += -DENABLE_STAGEFRIGHT_EXPERIMENTS
 endif
 
-LOCAL_CLANG := true
-
-LOCAL_SHARED_LIBRARIES := libmedia
+LOCAL_SHARED_LIBRARIES :=       \
+    libbinder                   \
+    libui                       \
+    libmedia                    \
+    libmediadrm                 \
 
 LOCAL_MODULE:= libstagefright_nuplayer
 
diff --git a/media/libmediaplayerservice/nuplayer/GenericSource.cpp b/media/libmediaplayerservice/nuplayer/GenericSource.cpp
index 57a7286..c949080 100644
--- a/media/libmediaplayerservice/nuplayer/GenericSource.cpp
+++ b/media/libmediaplayerservice/nuplayer/GenericSource.cpp
@@ -18,6 +18,7 @@
 #define LOG_TAG "GenericSource"
 
 #include "GenericSource.h"
+#include "NuPlayerDrm.h"
 
 #include "AnotherPacketSource.h"
 
@@ -33,18 +34,17 @@
 #include <media/stagefright/MediaSource.h>
 #include <media/stagefright/MetaData.h>
 #include <media/stagefright/Utils.h>
-#include "../../libstagefright/include/DRMExtractor.h"
 #include "../../libstagefright/include/NuCachedSource2.h"
-#include "../../libstagefright/include/WVMExtractor.h"
 #include "../../libstagefright/include/HTTPBase.h"
 
 namespace android {
 
-static int64_t kLowWaterMarkUs = 2000000ll;  // 2secs
-static int64_t kHighWaterMarkUs = 5000000ll;  // 5secs
-static int64_t kHighWaterMarkRebufferUs = 15000000ll;  // 15secs
-static const ssize_t kLowWaterMarkBytes = 40000;
-static const ssize_t kHighWaterMarkBytes = 200000;
+static const int kLowWaterMarkMs          = 2000;  // 2secs
+static const int kHighWaterMarkMs         = 5000;  // 5secs
+static const int kHighWaterMarkRebufferMs = 15000;  // 15secs
+
+static const int kLowWaterMarkKB  = 40;
+static const int kHighWaterMarkKB = 200;
 
 NuPlayer::GenericSource::GenericSource(
         const sp<AMessage> &notify,
@@ -59,21 +59,22 @@
       mFetchTimedTextDataGeneration(0),
       mDurationUs(-1ll),
       mAudioIsVorbis(false),
-      mIsWidevine(false),
       mIsSecure(false),
       mIsStreaming(false),
       mUIDValid(uidValid),
       mUID(uid),
       mFd(-1),
-      mDrmManagerClient(NULL),
       mBitrate(-1ll),
       mPendingReadBufferTypes(0) {
+    ALOGV("GenericSource");
+
     mBufferingMonitor = new BufferingMonitor(notify);
     resetDataSource();
-    DataSource::RegisterDefaultSniffers();
 }
 
 void NuPlayer::GenericSource::resetDataSource() {
+    ALOGV("resetDataSource");
+
     mHTTPService.clear();
     mHttpSource.clear();
     mUri.clear();
@@ -84,9 +85,6 @@
     }
     mOffset = 0;
     mLength = 0;
-    setDrmPlaybackStatusIfNeeded(Playback::STOP, 0);
-    mDecryptHandle = NULL;
-    mDrmManagerClient = NULL;
     mStarted = false;
     mStopRead = true;
 
@@ -96,12 +94,18 @@
         mBufferingMonitorLooper = NULL;
     }
     mBufferingMonitor->stop();
+
+    mIsDrmProtected = false;
+    mIsSecure = false;
+    mMimes.clear();
 }
 
 status_t NuPlayer::GenericSource::setDataSource(
         const sp<IMediaHTTPService> &httpService,
         const char *url,
         const KeyedVector<String8, String8> *headers) {
+    ALOGV("setDataSource url: %s", url);
+
     resetDataSource();
 
     mHTTPService = httpService;
@@ -118,6 +122,8 @@
 
 status_t NuPlayer::GenericSource::setDataSource(
         int fd, int64_t offset, int64_t length) {
+    ALOGV("setDataSource %d/%lld/%lld", fd, (long long)offset, (long long)length);
+
     resetDataSource();
 
     mFd = dup(fd);
@@ -130,6 +136,8 @@
 }
 
 status_t NuPlayer::GenericSource::setDataSource(const sp<DataSource>& source) {
+    ALOGV("setDataSource (source: %p)", source.get());
+
     resetDataSource();
     mDataSource = source;
     return OK;
@@ -141,70 +149,20 @@
 
 status_t NuPlayer::GenericSource::initFromDataSource() {
     sp<IMediaExtractor> extractor;
-    String8 mimeType;
-    float confidence;
-    sp<AMessage> dummy;
-    bool isWidevineStreaming = false;
-
     CHECK(mDataSource != NULL);
 
-    if (mIsWidevine) {
-        isWidevineStreaming = SniffWVM(
-                mDataSource, &mimeType, &confidence, &dummy);
-        if (!isWidevineStreaming ||
-                strcasecmp(
-                    mimeType.string(), MEDIA_MIMETYPE_CONTAINER_WVM)) {
-            ALOGE("unsupported widevine mime: %s", mimeType.string());
-            return UNKNOWN_ERROR;
-        }
-    } else if (mIsStreaming) {
-        if (!mDataSource->sniff(&mimeType, &confidence, &dummy)) {
-            return UNKNOWN_ERROR;
-        }
-        isWidevineStreaming = !strcasecmp(
-                mimeType.string(), MEDIA_MIMETYPE_CONTAINER_WVM);
-    }
-
-    if (isWidevineStreaming) {
-        // we don't want cached source for widevine streaming.
-        mCachedSource.clear();
-        mDataSource = mHttpSource;
-        mWVMExtractor = new WVMExtractor(mDataSource);
-        mWVMExtractor->setAdaptiveStreamingMode(true);
-        if (mUIDValid) {
-            mWVMExtractor->setUID(mUID);
-        }
-        extractor = mWVMExtractor;
-    } else {
-        extractor = MediaExtractor::Create(mDataSource,
-                mimeType.isEmpty() ? NULL : mimeType.string());
-    }
+    extractor = MediaExtractor::Create(mDataSource, NULL);
 
     if (extractor == NULL) {
         return UNKNOWN_ERROR;
     }
 
-    if (extractor->getDrmFlag()) {
-        checkDrmStatus(mDataSource);
-    }
-
     mFileMeta = extractor->getMetaData();
     if (mFileMeta != NULL) {
         int64_t duration;
         if (mFileMeta->findInt64(kKeyDuration, &duration)) {
             mDurationUs = duration;
         }
-
-        if (!mIsWidevine) {
-            // Check mime to see if we actually have a widevine source.
-            // If the data source is not URL-type (eg. file source), we
-            // won't be able to tell until now.
-            const char *fileMime;
-            if (mFileMeta->findCString(kKeyMIMEType, &fileMime)
-                    && !strncasecmp(fileMime, "video/wvm", 9)) {
-                mIsWidevine = true;
-            }
-        }
     }
 
     int32_t totalBitrate = 0;
@@ -214,6 +172,8 @@
         return UNKNOWN_ERROR;
     }
 
+    mMimes.clear();
+
     for (size_t i = 0; i < numtracks; ++i) {
         sp<IMediaSource> track = extractor->getTrack(i);
         if (track == NULL) {
@@ -229,6 +189,8 @@
         const char *mime;
         CHECK(meta->findCString(kKeyMIMEType, &mime));
 
+        ALOGV("initFromDataSource track[%zu]: %s", i, mime);
+
         // Do the string compare immediately with "mime",
         // we can't assume "mime" would stay valid after another
         // extractor operation, some extractors might modify meta
@@ -245,6 +207,8 @@
                 } else {
                     mAudioIsVorbis = false;
                 }
+
+                mMimes.add(String8(mime));
             }
         } else if (!strncasecmp(mime, "video/", 6)) {
             if (mVideoTrack.mSource == NULL) {
@@ -253,15 +217,8 @@
                 mVideoTrack.mPackets =
                     new AnotherPacketSource(mVideoTrack.mSource->getFormat());
 
-                // check if the source requires secure buffers
-                int32_t secure;
-                if (meta->findInt32(kKeyRequiresSecureBuffers, &secure)
-                        && secure) {
-                    mIsSecure = true;
-                    if (mUIDValid) {
-                        extractor->setUID(mUID);
-                    }
-                }
+                // video always at the beginning
+                mMimes.insertAt(String8(mime), 0);
             }
         }
 
@@ -281,21 +238,40 @@
         }
     }
 
+    ALOGV("initFromDataSource mSources.size(): %zu  mIsSecure: %d  mime[0]: %s", mSources.size(),
+            mIsSecure, (mMimes.isEmpty() ? "NONE" : mMimes[0].string()));
+
     if (mSources.size() == 0) {
         ALOGE("b/23705695");
         return UNKNOWN_ERROR;
     }
 
+    // Modular DRM: The return value doesn't affect source initialization.
+    (void)checkDrmInfo();
+
     mBitrate = totalBitrate;
 
     return OK;
 }
 
+status_t NuPlayer::GenericSource::getDefaultBufferingSettings(
+        BufferingSettings* buffering /* nonnull */) {
+    mBufferingMonitor->getDefaultBufferingSettings(buffering);
+    return OK;
+}
+
+status_t NuPlayer::GenericSource::setBufferingSettings(const BufferingSettings& buffering) {
+    return mBufferingMonitor->setBufferingSettings(buffering);
+}
+
 status_t NuPlayer::GenericSource::startSources() {
     // Start the selected A/V tracks now before we start buffering.
     // Widevine sources might re-initialize crypto when starting, if we delay
     // this to start(), all data buffered during prepare would be wasted.
     // (We don't actually start reading until start().)
+    //
+    // TODO: this logic may no longer be relevant after the removal of widevine
+    // support
     if (mAudioTrack.mSource != NULL && mAudioTrack.mSource->start() != OK) {
         ALOGE("failed to start audio track!");
         return UNKNOWN_ERROR;
@@ -309,18 +285,6 @@
     return OK;
 }
 
-void NuPlayer::GenericSource::checkDrmStatus(const sp<DataSource>& dataSource) {
-    dataSource->getDrmInfo(mDecryptHandle, &mDrmManagerClient);
-    if (mDecryptHandle != NULL) {
-        CHECK(mDrmManagerClient);
-        if (RightsStatus::RIGHTS_VALID != mDecryptHandle->status) {
-            sp<AMessage> msg = dupNotify();
-            msg->setInt32("what", kWhatDrmNoLicense);
-            msg->post();
-        }
-    }
-}
-
 int64_t NuPlayer::GenericSource::getLastReadPosition() {
     if (mAudioTrack.mSource != NULL) {
         return mAudioTimeUs;
@@ -348,6 +312,7 @@
 }
 
 NuPlayer::GenericSource::~GenericSource() {
+    ALOGV("~GenericSource");
     if (mLooper != NULL) {
         mLooper->unregisterHandler(id());
         mLooper->stop();
@@ -356,6 +321,8 @@
 }
 
 void NuPlayer::GenericSource::prepareAsync() {
+    ALOGV("prepareAsync: (looper: %d)", (mLooper != NULL));
+
     if (mLooper == NULL) {
         mLooper = new ALooper;
         mLooper->setName("generic");
@@ -369,6 +336,8 @@
 }
 
 void NuPlayer::GenericSource::onPrepareAsync() {
+    ALOGV("onPrepareAsync: mDataSource: %d", (mDataSource != NULL));
+
     // delayed data source creation
     if (mDataSource == NULL) {
         // set to false first, if the extractor
@@ -378,11 +347,8 @@
         if (!mUri.empty()) {
             const char* uri = mUri.c_str();
             String8 contentType;
-            mIsWidevine = !strncasecmp(uri, "widevine://", 11);
 
-            if (!strncasecmp("http://", uri, 7)
-                    || !strncasecmp("https://", uri, 8)
-                    || mIsWidevine) {
+            if (!strncasecmp("http://", uri, 7) || !strncasecmp("https://", uri, 8)) {
                 mHttpSource = DataSource::CreateMediaHTTP(mHTTPService);
                 if (mHttpSource == NULL) {
                     ALOGE("Failed to create http source!");
@@ -395,8 +361,6 @@
                    mHTTPService, uri, &mUriHeaders, &contentType,
                    static_cast<HTTPBase *>(mHttpSource.get()));
         } else {
-            mIsWidevine = false;
-
             mDataSource = new FileSource(mFd, mOffset, mLength);
             mFd = -1;
         }
@@ -412,13 +376,9 @@
         mCachedSource = static_cast<NuCachedSource2 *>(mDataSource.get());
     }
 
-    // For widevine or other cached streaming cases, we need to wait for
-    // enough buffering before reporting prepared.
-    // Note that even when URL doesn't start with widevine://, mIsWidevine
-    // could still be set to true later, if the streaming or file source
-    // is sniffed to be widevine. We don't want to buffer for file source
-    // in that case, so must check the flag now.
-    mIsStreaming = (mIsWidevine || mCachedSource != NULL);
+    // For cached streaming cases, we need to wait for enough
+    // buffering before reporting prepared.
+    mIsStreaming = (mCachedSource != NULL);
 
     // init extractor from data source
     status_t err = initFromDataSource();
@@ -441,32 +401,21 @@
     }
 
     notifyFlagsChanged(
-            (mIsSecure ? FLAG_SECURE : 0)
-            | (mDecryptHandle != NULL ? FLAG_PROTECTED : 0)
-            | FLAG_CAN_PAUSE
-            | FLAG_CAN_SEEK_BACKWARD
-            | FLAG_CAN_SEEK_FORWARD
-            | FLAG_CAN_SEEK);
+            // FLAG_SECURE will be known if/when prepareDrm is called by the app
+            // FLAG_PROTECTED will be known if/when prepareDrm is called by the app
+            FLAG_CAN_PAUSE |
+            FLAG_CAN_SEEK_BACKWARD |
+            FLAG_CAN_SEEK_FORWARD |
+            FLAG_CAN_SEEK);
 
-    if (mIsSecure) {
-        // secure decoders must be instantiated before starting widevine source
-        sp<AMessage> reply = new AMessage(kWhatSecureDecodersInstantiated, this);
-        notifyInstantiateSecureDecoders(reply);
-    } else {
-        finishPrepareAsync();
-    }
-}
-
-void NuPlayer::GenericSource::onSecureDecodersInstantiated(status_t err) {
-    if (err != OK) {
-        ALOGE("Failed to instantiate secure decoders!");
-        notifyPreparedAndCleanup(err);
-        return;
-    }
     finishPrepareAsync();
+
+    ALOGV("onPrepareAsync: Done");
 }
 
 void NuPlayer::GenericSource::finishPrepareAsync() {
+    ALOGV("finishPrepareAsync");
+
     status_t err = startSources();
     if (err != OK) {
         ALOGE("Failed to init start data source!");
@@ -476,7 +425,7 @@
 
     if (mIsStreaming) {
         if (mBufferingMonitorLooper == NULL) {
-            mBufferingMonitor->prepare(mCachedSource, mWVMExtractor, mDurationUs, mBitrate,
+            mBufferingMonitor->prepare(mCachedSource, mDurationUs, mBitrate,
                     mIsStreaming);
 
             mBufferingMonitorLooper = new ALooper;
@@ -501,8 +450,6 @@
             {
                 Mutex::Autolock _l(mDisconnectLock);
                 mDataSource.clear();
-                mDecryptHandle = NULL;
-                mDrmManagerClient = NULL;
                 mCachedSource.clear();
                 mHttpSource.clear();
             }
@@ -526,33 +473,20 @@
         postReadBuffer(MEDIA_TRACK_TYPE_VIDEO);
     }
 
-    setDrmPlaybackStatusIfNeeded(Playback::START, getLastReadPosition() / 1000);
     mStarted = true;
 
     (new AMessage(kWhatStart, this))->post();
 }
 
 void NuPlayer::GenericSource::stop() {
-    // nothing to do, just account for DRM playback status
-    setDrmPlaybackStatusIfNeeded(Playback::STOP, 0);
     mStarted = false;
-    if (mIsWidevine || mIsSecure) {
-        // For widevine or secure sources we need to prevent any further reads.
-        sp<AMessage> msg = new AMessage(kWhatStopWidevine, this);
-        sp<AMessage> response;
-        (void) msg->postAndAwaitResponse(&response);
-    }
 }
 
 void NuPlayer::GenericSource::pause() {
-    // nothing to do, just account for DRM playback status
-    setDrmPlaybackStatusIfNeeded(Playback::PAUSE, 0);
     mStarted = false;
 }
 
 void NuPlayer::GenericSource::resume() {
-    // nothing to do, just account for DRM playback status
-    setDrmPlaybackStatusIfNeeded(Playback::START, getLastReadPosition() / 1000);
     mStarted = true;
 
     (new AMessage(kWhatResume, this))->post();
@@ -576,14 +510,6 @@
     }
 }
 
-void NuPlayer::GenericSource::setDrmPlaybackStatusIfNeeded(int playbackStatus, int64_t position) {
-    if (mDecryptHandle != NULL) {
-        mDrmManagerClient->setPlaybackStatus(mDecryptHandle, playbackStatus, position);
-    }
-    mSubtitleTrack.mPackets = new AnotherPacketSource(NULL);
-    mTimedTextTrack.mPackets = new AnotherPacketSource(NULL);
-}
-
 status_t NuPlayer::GenericSource::feedMoreTSData() {
     return OK;
 }
@@ -665,8 +591,10 @@
           } else {
               timeUs = mVideoLastDequeueTimeUs;
           }
-          readBuffer(trackType, timeUs, &actualTimeUs, formatChange);
-          readBuffer(counterpartType, -1, NULL, formatChange);
+          readBuffer(trackType, timeUs, MediaPlayerSeekMode::SEEK_PREVIOUS_SYNC /* mode */,
+                  &actualTimeUs, formatChange);
+          readBuffer(counterpartType, -1, MediaPlayerSeekMode::SEEK_PREVIOUS_SYNC /* mode */,
+                  NULL, !formatChange);
           ALOGV("timeUs %lld actualTimeUs %lld", (long long)timeUs, (long long)actualTimeUs);
 
           break;
@@ -715,28 +643,17 @@
           break;
       }
 
-      case kWhatSecureDecodersInstantiated:
+      case kWhatPrepareDrm:
       {
-          int32_t err;
-          CHECK(msg->findInt32("err", &err));
-          onSecureDecodersInstantiated(err);
-          break;
-      }
-
-      case kWhatStopWidevine:
-      {
-          // mStopRead is only used for Widevine to prevent the video source
-          // from being read while the associated video decoder is shutting down.
-          mStopRead = true;
-          if (mVideoTrack.mSource != NULL) {
-              mVideoTrack.mPackets->clear();
-          }
+          status_t status = onPrepareDrm(msg);
           sp<AMessage> response = new AMessage;
+          response->setInt32("status", status);
           sp<AReplyToken> replyID;
           CHECK(msg->senderAwaitsResponse(&replyID));
           response->postReply(replyID);
           break;
       }
+
       default:
           Source::onMessageReceived(msg);
           break;
@@ -765,7 +682,7 @@
     CHECK(msg->findInt64("timeUs", &timeUs));
 
     int64_t subTimeUs;
-    readBuffer(type, timeUs, &subTimeUs);
+    readBuffer(type, timeUs, MediaPlayerSeekMode::SEEK_PREVIOUS_SYNC /* mode */, &subTimeUs);
 
     int64_t delayUs = subTimeUs - timeUs;
     if (msg->what() == kWhatFetchSubtitleData) {
@@ -796,7 +713,7 @@
     }
 
     int64_t nextSubTimeUs;
-    readBuffer(type, -1, &nextSubTimeUs);
+    readBuffer(type, -1, MediaPlayerSeekMode::SEEK_PREVIOUS_SYNC /* mode */, &nextSubTimeUs);
 
     sp<ABuffer> buffer;
     status_t dequeueStatus = packets->dequeueAccessUnit(&buffer);
@@ -892,11 +809,6 @@
         return -EWOULDBLOCK;
     }
 
-    if (mIsWidevine && !audio) {
-        // try to read a buffer as we may not have been able to the last time
-        postReadBuffer(MEDIA_TRACK_TYPE_VIDEO);
-    }
-
     status_t finalResult;
     if (!track->mPackets->hasBufferAvailable(&finalResult)) {
         if (finalResult == OK) {
@@ -1220,9 +1132,10 @@
     return INVALID_OPERATION;
 }
 
-status_t NuPlayer::GenericSource::seekTo(int64_t seekTimeUs) {
+status_t NuPlayer::GenericSource::seekTo(int64_t seekTimeUs, MediaPlayerSeekMode mode) {
     sp<AMessage> msg = new AMessage(kWhatSeek, this);
     msg->setInt64("seekTimeUs", seekTimeUs);
+    msg->setInt32("mode", mode);
 
     sp<AMessage> response;
     status_t err = msg->postAndAwaitResponse(&response);
@@ -1235,10 +1148,12 @@
 
 void NuPlayer::GenericSource::onSeek(const sp<AMessage>& msg) {
     int64_t seekTimeUs;
+    int32_t mode;
     CHECK(msg->findInt64("seekTimeUs", &seekTimeUs));
+    CHECK(msg->findInt32("mode", &mode));
 
     sp<AMessage> response = new AMessage;
-    status_t err = doSeek(seekTimeUs);
+    status_t err = doSeek(seekTimeUs, (MediaPlayerSeekMode)mode);
     response->setInt32("err", err);
 
     sp<AReplyToken> replyID;
@@ -1246,20 +1161,25 @@
     response->postReply(replyID);
 }
 
-status_t NuPlayer::GenericSource::doSeek(int64_t seekTimeUs) {
+status_t NuPlayer::GenericSource::doSeek(int64_t seekTimeUs, MediaPlayerSeekMode mode) {
     mBufferingMonitor->updateDequeuedBufferTime(-1ll);
 
     // If the Widevine source is stopped, do not attempt to read any
     // more buffers.
+    //
+    // TODO: revisit after widevine is removed.  May be able to
+    // combine mStopRead with mStarted.
     if (mStopRead) {
         return INVALID_OPERATION;
     }
     if (mVideoTrack.mSource != NULL) {
         int64_t actualTimeUs;
-        readBuffer(MEDIA_TRACK_TYPE_VIDEO, seekTimeUs, &actualTimeUs);
+        readBuffer(MEDIA_TRACK_TYPE_VIDEO, seekTimeUs, mode, &actualTimeUs);
 
-        seekTimeUs = actualTimeUs;
-        mVideoLastDequeueTimeUs = seekTimeUs;
+        if (mode != MediaPlayerSeekMode::SEEK_CLOSEST) {
+            seekTimeUs = actualTimeUs;
+        }
+        mVideoLastDequeueTimeUs = actualTimeUs;
     }
 
     if (mAudioTrack.mSource != NULL) {
@@ -1267,11 +1187,6 @@
         mAudioLastDequeueTimeUs = seekTimeUs;
     }
 
-    setDrmPlaybackStatusIfNeeded(Playback::START, seekTimeUs / 1000);
-    if (!mStarted) {
-        setDrmPlaybackStatusIfNeeded(Playback::PAUSE, 0);
-    }
-
     // If currently buffering, post kWhatBufferingEnd first, so that
     // NuPlayer resumes. Otherwise, if cache hits high watermark
     // before new polling happens, no one will resume the playback.
@@ -1283,9 +1198,7 @@
 
 sp<ABuffer> NuPlayer::GenericSource::mediaBufferToABuffer(
         MediaBuffer* mb,
-        media_track_type trackType,
-        int64_t /* seekTimeUs */,
-        int64_t *actualTimeUs) {
+        media_track_type trackType) {
     bool audio = trackType == MEDIA_TRACK_TYPE_AUDIO;
     size_t outLength = mb->range_length();
 
@@ -1294,11 +1207,26 @@
     }
 
     sp<ABuffer> ab;
-    if (mIsSecure && !audio) {
+
+    if (mIsDrmProtected)   {
+        // Modular DRM
+        // Enabled for both video/audio so 1) media buffer is reused without extra copying
+        // 2) meta data can be retrieved in onInputBufferFetched for calling queueSecureInputBuffer.
+
         // data is already provided in the buffer
         ab = new ABuffer(NULL, mb->range_length());
         mb->add_ref();
         ab->setMediaBufferBase(mb);
+
+        // Modular DRM: Required b/c of the above add_ref.
+        // If ref>0, there must be an observer, or it'll crash at release().
+        // TODO: MediaBuffer might need to be revised to ease such need.
+        mb->setObserver(this);
+        // setMediaBufferBase() interestingly doesn't increment the ref count on its own.
+        // Extra increment (since we want to keep mb alive and attached to ab beyond this function
+        // call. This is to counter the effect of mb->release() towards the end.
+        mb->add_ref();
+
     } else {
         ab = new ABuffer(outLength);
         memcpy(ab->data(),
@@ -1322,16 +1250,6 @@
     CHECK(mb->meta_data()->findInt64(kKeyTime, &timeUs));
     meta->setInt64("timeUs", timeUs);
 
-#if 0
-    // Temporarily disable pre-roll till we have a full solution to handle
-    // both single seek and continous seek gracefully.
-    if (seekTimeUs > timeUs) {
-        sp<AMessage> extra = new AMessage;
-        extra->setInt64("resume-at-mediaTimeUs", seekTimeUs);
-        meta->setMessage("extra", extra);
-    }
-#endif
-
     if (trackType == MEDIA_TRACK_TYPE_VIDEO) {
         int32_t layerId;
         if (mb->meta_data()->findInt32(kKeyTemporalLayerId, &layerId)) {
@@ -1371,10 +1289,6 @@
         meta->setBuffer("mpegUserData", mpegUserData);
     }
 
-    if (actualTimeUs) {
-        *actualTimeUs = timeUs;
-    }
-
     mb->release();
     mb = NULL;
 
@@ -1406,8 +1320,12 @@
 }
 
 void NuPlayer::GenericSource::readBuffer(
-        media_track_type trackType, int64_t seekTimeUs, int64_t *actualTimeUs, bool formatChange) {
+        media_track_type trackType, int64_t seekTimeUs, MediaPlayerSeekMode mode,
+        int64_t *actualTimeUs, bool formatChange) {
     // Do not read data if Widevine source is stopped
+    //
+    // TODO: revisit after widevine is removed.  May be able to
+    // combine mStopRead with mStarted.
     if (mStopRead) {
         return;
     }
@@ -1416,19 +1334,11 @@
     switch (trackType) {
         case MEDIA_TRACK_TYPE_VIDEO:
             track = &mVideoTrack;
-            if (mIsWidevine) {
-                maxBuffers = 2;
-            } else {
-                maxBuffers = 8;  // too large of a number may influence seeks
-            }
+            maxBuffers = 8;  // too large of a number may influence seeks
             break;
         case MEDIA_TRACK_TYPE_AUDIO:
             track = &mAudioTrack;
-            if (mIsWidevine) {
-                maxBuffers = 8;
-            } else {
-                maxBuffers = 64;
-            }
+            maxBuffers = 64;
             break;
         case MEDIA_TRACK_TYPE_SUBTITLE:
             track = &mSubtitleTrack;
@@ -1452,13 +1362,13 @@
 
     bool seeking = false;
     if (seekTimeUs >= 0) {
-        options.setSeekTo(seekTimeUs, MediaSource::ReadOptions::SEEK_PREVIOUS_SYNC);
+        options.setSeekTo(seekTimeUs, mode);
         seeking = true;
     }
 
-    const bool couldReadMultiple = (!mIsWidevine && track->mSource->supportReadMultiple());
+    const bool couldReadMultiple = (track->mSource->supportReadMultiple());
 
-    if (mIsWidevine || couldReadMultiple) {
+    if (couldReadMultiple) {
         options.setNonBlocking();
     }
 
@@ -1499,9 +1409,20 @@
 
             queueDiscontinuityIfNeeded(seeking, formatChange, trackType, track);
 
-            sp<ABuffer> buffer = mediaBufferToABuffer(
-                    mbuf, trackType, seekTimeUs,
-                    numBuffers == 0 ? actualTimeUs : NULL);
+            sp<ABuffer> buffer = mediaBufferToABuffer(mbuf, trackType);
+            if (numBuffers == 0 && actualTimeUs != nullptr) {
+                *actualTimeUs = timeUs;
+            }
+            if (seeking && buffer != nullptr) {
+                sp<AMessage> meta = buffer->meta();
+                if (meta != nullptr && mode == MediaPlayerSeekMode::SEEK_CLOSEST
+                        && seekTimeUs > timeUs) {
+                    sp<AMessage> extra = new AMessage;
+                    extra->setInt64("resume-at-mediaTimeUs", seekTimeUs);
+                    meta->setMessage("extra", extra);
+                }
+            }
+
             track->mPackets->queueAccessUnit(buffer);
             formatChange = false;
             seeking = false;
@@ -1562,24 +1483,66 @@
       mFirstDequeuedBufferRealUs(-1ll),
       mFirstDequeuedBufferMediaUs(-1ll),
       mlastDequeuedBufferMediaUs(-1ll) {
+      getDefaultBufferingSettings(&mSettings);
 }
 
 NuPlayer::GenericSource::BufferingMonitor::~BufferingMonitor() {
 }
 
+void NuPlayer::GenericSource::BufferingMonitor::getDefaultBufferingSettings(
+        BufferingSettings *buffering /* nonnull */) {
+    buffering->mInitialBufferingMode = BUFFERING_MODE_TIME_ONLY;
+    buffering->mRebufferingMode = BUFFERING_MODE_TIME_THEN_SIZE;
+    buffering->mInitialWatermarkMs = kHighWaterMarkMs;
+    buffering->mRebufferingWatermarkLowMs = kLowWaterMarkMs;
+    buffering->mRebufferingWatermarkHighMs = kHighWaterMarkRebufferMs;
+    buffering->mRebufferingWatermarkLowKB = kLowWaterMarkKB;
+    buffering->mRebufferingWatermarkHighKB = kHighWaterMarkKB;
+
+    ALOGV("BufferingMonitor::getDefaultBufferingSettings{%s}",
+            buffering->toString().string());
+}
+
+status_t NuPlayer::GenericSource::BufferingMonitor::setBufferingSettings(
+        const BufferingSettings &buffering) {
+    ALOGV("BufferingMonitor::setBufferingSettings{%s}",
+            buffering.toString().string());
+
+    Mutex::Autolock _l(mLock);
+    if (buffering.IsSizeBasedBufferingMode(buffering.mInitialBufferingMode)
+            || (buffering.IsTimeBasedBufferingMode(buffering.mRebufferingMode)
+                && buffering.mRebufferingWatermarkLowMs > buffering.mRebufferingWatermarkHighMs)
+            || (buffering.IsSizeBasedBufferingMode(buffering.mRebufferingMode)
+                && buffering.mRebufferingWatermarkLowKB > buffering.mRebufferingWatermarkHighKB)) {
+        return BAD_VALUE;
+    }
+    mSettings = buffering;
+    if (mSettings.mInitialBufferingMode == BUFFERING_MODE_NONE) {
+        mSettings.mInitialWatermarkMs = BufferingSettings::kNoWatermark;
+    }
+    if (!mSettings.IsTimeBasedBufferingMode(mSettings.mRebufferingMode)) {
+        mSettings.mRebufferingWatermarkLowMs = BufferingSettings::kNoWatermark;
+        mSettings.mRebufferingWatermarkHighMs = INT32_MAX;
+    }
+    if (!mSettings.IsSizeBasedBufferingMode(mSettings.mRebufferingMode)) {
+        mSettings.mRebufferingWatermarkLowKB = BufferingSettings::kNoWatermark;
+        mSettings.mRebufferingWatermarkHighKB = INT32_MAX;
+    }
+    return OK;
+}
+
 void NuPlayer::GenericSource::BufferingMonitor::prepare(
         const sp<NuCachedSource2> &cachedSource,
-        const sp<WVMExtractor> &wvmExtractor,
         int64_t durationUs,
         int64_t bitrate,
         bool isStreaming) {
     Mutex::Autolock _l(mLock);
-    prepare_l(cachedSource, wvmExtractor, durationUs, bitrate, isStreaming);
+    prepare_l(cachedSource, durationUs, bitrate, isStreaming);
 }
 
 void NuPlayer::GenericSource::BufferingMonitor::stop() {
     Mutex::Autolock _l(mLock);
-    prepare_l(NULL /* cachedSource */, NULL /* wvmExtractor */, -1 /* durationUs */,
+    prepare_l(NULL /* cachedSource */, -1 /* durationUs */,
             -1 /* bitrate */, false /* isStreaming */);
 }
 
@@ -1634,22 +1597,17 @@
 
 void NuPlayer::GenericSource::BufferingMonitor::prepare_l(
         const sp<NuCachedSource2> &cachedSource,
-        const sp<WVMExtractor> &wvmExtractor,
         int64_t durationUs,
         int64_t bitrate,
         bool isStreaming) {
-    ALOGW_IF(wvmExtractor != NULL && cachedSource != NULL,
-            "WVMExtractor and NuCachedSource are both present when "
-            "BufferingMonitor::prepare_l is called, ignore NuCachedSource");
 
     mCachedSource = cachedSource;
-    mWVMExtractor = wvmExtractor;
     mDurationUs = durationUs;
     mBitrate = bitrate;
     mIsStreaming = isStreaming;
     mAudioTimeUs = 0;
     mVideoTimeUs = 0;
-    mPrepareBuffering = (cachedSource != NULL || wvmExtractor != NULL);
+    mPrepareBuffering = (cachedSource != NULL);
     cancelPollBuffering_l();
     mOffloadAudio = false;
     mFirstDequeuedBufferRealUs = -1ll;
@@ -1733,9 +1691,7 @@
     int32_t kbps = 0;
     status_t err = UNKNOWN_ERROR;
 
-    if (mWVMExtractor != NULL) {
-        err = mWVMExtractor->getEstimatedBandwidthKbps(&kbps);
-    } else if (mCachedSource != NULL) {
+    if (mCachedSource != NULL) {
         err = mCachedSource->getEstimatedBandwidthKbps(&kbps);
     }
 
@@ -1775,10 +1731,7 @@
     int64_t cachedDurationUs = -1ll;
     ssize_t cachedDataRemaining = -1;
 
-    if (mWVMExtractor != NULL) {
-        cachedDurationUs =
-                mWVMExtractor->getCachedDurationUs(&finalStatus);
-    } else if (mCachedSource != NULL) {
+    if (mCachedSource != NULL) {
         cachedDataRemaining =
                 mCachedSource->approxDataRemaining(&finalStatus);
 
@@ -1806,7 +1759,9 @@
 
         stopBufferingIfNecessary_l();
         return;
-    } else if (cachedDurationUs >= 0ll) {
+    }
+
+    if (cachedDurationUs >= 0ll) {
         if (mDurationUs > 0ll) {
             int64_t cachedPosUs = getLastReadPosition_l() + cachedDurationUs;
             int percentage = 100.0 * cachedPosUs / mDurationUs;
@@ -1817,36 +1772,40 @@
             notifyBufferingUpdate_l(percentage);
         }
 
-        ALOGV("onPollBuffering_l: cachedDurationUs %.1f sec",
-                cachedDurationUs / 1000000.0f);
+        ALOGV("onPollBuffering_l: cachedDurationUs %.1f sec", cachedDurationUs / 1000000.0f);
 
-        if (cachedDurationUs < kLowWaterMarkUs) {
-            // Take into account the data cached in downstream components to try to avoid
-            // unnecessary pause.
-            if (mOffloadAudio && mFirstDequeuedBufferRealUs >= 0) {
-                int64_t downStreamCacheUs = mlastDequeuedBufferMediaUs - mFirstDequeuedBufferMediaUs
-                        - (ALooper::GetNowUs() - mFirstDequeuedBufferRealUs);
-                if (downStreamCacheUs > 0) {
-                    cachedDurationUs += downStreamCacheUs;
+        if (mPrepareBuffering) {
+            if (cachedDurationUs > mSettings.mInitialWatermarkMs * 1000) {
+                stopBufferingIfNecessary_l();
+            }
+        } else if (mSettings.IsTimeBasedBufferingMode(mSettings.mRebufferingMode)) {
+            if (cachedDurationUs < mSettings.mRebufferingWatermarkLowMs * 1000) {
+                // Take into account the data cached in downstream components to try to avoid
+                // unnecessary pause.
+                if (mOffloadAudio && mFirstDequeuedBufferRealUs >= 0) {
+                    int64_t downStreamCacheUs =
+                        mlastDequeuedBufferMediaUs - mFirstDequeuedBufferMediaUs
+                            - (ALooper::GetNowUs() - mFirstDequeuedBufferRealUs);
+                    if (downStreamCacheUs > 0) {
+                        cachedDurationUs += downStreamCacheUs;
+                    }
                 }
-            }
 
-            if (cachedDurationUs < kLowWaterMarkUs) {
-                startBufferingIfNecessary_l();
-            }
-        } else {
-            int64_t highWaterMark = mPrepareBuffering ? kHighWaterMarkUs : kHighWaterMarkRebufferUs;
-            if (cachedDurationUs > highWaterMark) {
+                if (cachedDurationUs < mSettings.mRebufferingWatermarkLowMs * 1000) {
+                    startBufferingIfNecessary_l();
+                }
+            } else if (cachedDurationUs > mSettings.mRebufferingWatermarkHighMs * 1000) {
                 stopBufferingIfNecessary_l();
             }
         }
-    } else if (cachedDataRemaining >= 0) {
+    } else if (cachedDataRemaining >= 0
+            && mSettings.IsSizeBasedBufferingMode(mSettings.mRebufferingMode)) {
         ALOGV("onPollBuffering_l: cachedDataRemaining %zd bytes",
                 cachedDataRemaining);
 
-        if (cachedDataRemaining < kLowWaterMarkBytes) {
+        if (cachedDataRemaining < (mSettings.mRebufferingWatermarkLowKB << 10)) {
             startBufferingIfNecessary_l();
-        } else if (cachedDataRemaining > kHighWaterMarkBytes) {
+        } else if (cachedDataRemaining > (mSettings.mRebufferingWatermarkHighKB << 10)) {
             stopBufferingIfNecessary_l();
         }
     }
@@ -1872,4 +1831,128 @@
     }
 }
 
+// Modular DRM
+status_t NuPlayer::GenericSource::prepareDrm(
+        const uint8_t uuid[16], const Vector<uint8_t> &drmSessionId, sp<ICrypto> *crypto)
+{
+    ALOGV("prepareDrm");
+
+    sp<AMessage> msg = new AMessage(kWhatPrepareDrm, this);
+    // synchronous call so just passing the address but with local copies of "const" args
+    uint8_t UUID[16];
+    memcpy(UUID, uuid, sizeof(UUID));
+    Vector<uint8_t> sessionId = drmSessionId;
+    msg->setPointer("uuid", (void*)UUID);
+    msg->setPointer("drmSessionId", (void*)&sessionId);
+    msg->setPointer("crypto", (void*)crypto);
+
+    sp<AMessage> response;
+    status_t status = msg->postAndAwaitResponse(&response);
+
+    if (status == OK && response != NULL) {
+        CHECK(response->findInt32("status", &status));
+        ALOGV_IF(status == OK, "prepareDrm: mCrypto: %p (%d)", crypto->get(),
+                (*crypto != NULL ? (*crypto)->getStrongCount() : 0));
+        ALOGD("prepareDrm ret: %d ", status);
+    } else {
+        ALOGE("prepareDrm err: %d", status);
+    }
+
+    return status;
+}
+
+status_t NuPlayer::GenericSource::onPrepareDrm(const sp<AMessage> &msg)
+{
+    ALOGV("onPrepareDrm ");
+
+    mIsDrmProtected = false;
+    mIsSecure = false;
+
+    uint8_t *uuid;
+    Vector<uint8_t> *drmSessionId;
+    sp<ICrypto> *outCrypto;
+    CHECK(msg->findPointer("uuid", (void**)&uuid));
+    CHECK(msg->findPointer("drmSessionId", (void**)&drmSessionId));
+    CHECK(msg->findPointer("crypto", (void**)&outCrypto));
+
+    status_t status = OK;
+    sp<ICrypto> crypto = NuPlayerDrm::createCryptoAndPlugin(uuid, *drmSessionId, status);
+    if (crypto == NULL) {
+        ALOGE("onPrepareDrm: createCrypto failed. status: %d", status);
+        return status;
+    }
+    ALOGV("onPrepareDrm: createCryptoAndPlugin succeeded for uuid: %s",
+            DrmUUID::toHexString(uuid).string());
+
+    *outCrypto = crypto;
+    // as long a there is an active crypto
+    mIsDrmProtected = true;
+
+    if (mMimes.size() == 0) {
+        status = UNKNOWN_ERROR;
+        ALOGE("onPrepareDrm: Unexpected. Must have at least one track. status: %d", status);
+        return status;
+    }
+
+    // first mime in this list is either the video track, or the first audio track
+    const char *mime = mMimes[0].string();
+    mIsSecure = crypto->requiresSecureDecoderComponent(mime);
+    ALOGV("onPrepareDrm: requiresSecureDecoderComponent mime: %s  isSecure: %d",
+            mime, mIsSecure);
+
+    // Checking the member flags while in the looper to send out the notification.
+    // The legacy mDecryptHandle!=NULL check (for FLAG_PROTECTED) is equivalent to mIsDrmProtected.
+    notifyFlagsChanged(
+            (mIsSecure ? FLAG_SECURE : 0) |
+            (mIsDrmProtected ? FLAG_PROTECTED : 0) |
+            FLAG_CAN_PAUSE |
+            FLAG_CAN_SEEK_BACKWARD |
+            FLAG_CAN_SEEK_FORWARD |
+            FLAG_CAN_SEEK);
+
+    return status;
+}
+
+status_t NuPlayer::GenericSource::checkDrmInfo()
+{
+    if (mFileMeta == NULL) {
+        ALOGE("checkDrmInfo: No metadata");
+        return OK; // letting the caller responds accordingly
+    }
+
+    uint32_t type;
+    const void *pssh;
+    size_t psshsize;
+
+    if (!mFileMeta->findData(kKeyPssh, &type, &pssh, &psshsize)) {
+        ALOGE("checkDrmInfo: No PSSH");
+        return OK; // source without DRM info
+    }
+
+    Parcel parcel;
+    NuPlayerDrm::retrieveDrmInfo(pssh, psshsize, mMimes, &parcel);
+    ALOGV("checkDrmInfo: MEDIA_DRM_INFO PSSH size: %d  Parcel size: %d  objects#: %d",
+          (int)psshsize, (int)parcel.dataSize(), (int)parcel.objectsCount());
+
+    if (parcel.dataSize() == 0) {
+        ALOGE("checkDrmInfo: Unexpected parcel size: 0");
+        return UNKNOWN_ERROR;
+    }
+
+    // Can't pass parcel as a message to the player. Converting Parcel->ABuffer to pass it
+    // to the Player's onSourceNotify then back to Parcel for calling driver's notifyListener.
+    sp<ABuffer> drmInfoBuffer = ABuffer::CreateAsCopy(parcel.data(), parcel.dataSize());
+    notifyDrmInfo(drmInfoBuffer);
+
+    return OK;
+}
+
+void NuPlayer::GenericSource::signalBufferReturned(MediaBuffer *buffer)
+{
+    //ALOGV("signalBufferReturned %p  refCount: %d", buffer, buffer->localRefcount());
+
+    buffer->setObserver(NULL);
+    buffer->release(); // this leads to delete since that there is no observor
+}
+
 }  // namespace android
diff --git a/media/libmediaplayerservice/nuplayer/GenericSource.h b/media/libmediaplayerservice/nuplayer/GenericSource.h
index e92a2ae..64f21a6 100644
--- a/media/libmediaplayerservice/nuplayer/GenericSource.h
+++ b/media/libmediaplayerservice/nuplayer/GenericSource.h
@@ -28,7 +28,6 @@
 namespace android {
 
 class DecryptHandle;
-class DrmManagerClient;
 struct AnotherPacketSource;
 struct ARTSPController;
 class DataSource;
@@ -37,9 +36,10 @@
 struct MediaSource;
 class MediaBuffer;
 struct NuCachedSource2;
-class WVMExtractor;
 
-struct NuPlayer::GenericSource : public NuPlayer::Source {
+struct NuPlayer::GenericSource : public NuPlayer::Source,
+                                 public MediaBufferObserver // Modular DRM
+{
     GenericSource(const sp<AMessage> &notify, bool uidValid, uid_t uid);
 
     status_t setDataSource(
@@ -51,6 +51,10 @@
 
     status_t setDataSource(const sp<DataSource>& dataSource);
 
+    virtual status_t getDefaultBufferingSettings(
+            BufferingSettings* buffering /* nonnull */) override;
+    virtual status_t setBufferingSettings(const BufferingSettings& buffering) override;
+
     virtual void prepareAsync();
 
     virtual void start();
@@ -71,7 +75,9 @@
     virtual sp<AMessage> getTrackInfo(size_t trackIndex) const;
     virtual ssize_t getSelectedTrack(media_track_type type) const;
     virtual status_t selectTrack(size_t trackIndex, bool select, int64_t timeUs);
-    virtual status_t seekTo(int64_t seekTimeUs);
+    virtual status_t seekTo(
+        int64_t seekTimeUs,
+        MediaPlayerSeekMode mode = MediaPlayerSeekMode::SEEK_PREVIOUS_SYNC) override;
 
     virtual status_t setBuffers(bool audio, Vector<MediaBuffer *> &buffers);
 
@@ -79,6 +85,13 @@
 
     virtual void setOffloadAudio(bool offload);
 
+    // Modular DRM
+    virtual void signalBufferReturned(MediaBuffer *buffer);
+
+    virtual status_t prepareDrm(
+            const uint8_t uuid[16], const Vector<uint8_t> &drmSessionId, sp<ICrypto> *crypto);
+
+
 protected:
     virtual ~GenericSource();
 
@@ -101,10 +114,11 @@
         kWhatSelectTrack,
         kWhatSeek,
         kWhatReadBuffer,
-        kWhatStopWidevine,
         kWhatStart,
         kWhatResume,
         kWhatSecureDecodersInstantiated,
+        // Modular DRM
+        kWhatPrepareDrm,
     };
 
     struct Track {
@@ -119,9 +133,11 @@
     public:
         explicit BufferingMonitor(const sp<AMessage> &notify);
 
+        void getDefaultBufferingSettings(BufferingSettings *buffering /* nonnull */);
+        status_t setBufferingSettings(const BufferingSettings &buffering);
+
         // Set up state.
         void prepare(const sp<NuCachedSource2> &cachedSource,
-                const sp<WVMExtractor> &wvmExtractor,
                 int64_t durationUs,
                 int64_t bitrate,
                 bool isStreaming);
@@ -155,7 +171,6 @@
         sp<AMessage> mNotify;
 
         sp<NuCachedSource2> mCachedSource;
-        sp<WVMExtractor> mWVMExtractor;
         int64_t mDurationUs;
         int64_t mBitrate;
         bool mIsStreaming;
@@ -169,13 +184,13 @@
 
         mutable Mutex mLock;
 
+        BufferingSettings mSettings;
         bool mOffloadAudio;
         int64_t mFirstDequeuedBufferRealUs;
         int64_t mFirstDequeuedBufferMediaUs;
         int64_t mlastDequeuedBufferMediaUs;
 
         void prepare_l(const sp<NuCachedSource2> &cachedSource,
-                const sp<WVMExtractor> &wvmExtractor,
                 int64_t durationUs,
                 int64_t bitrate,
                 bool isStreaming);
@@ -204,7 +219,6 @@
     int32_t mFetchTimedTextDataGeneration;
     int64_t mDurationUs;
     bool mAudioIsVorbis;
-    bool mIsWidevine;
     bool mIsSecure;
     bool mIsStreaming;
     bool mUIDValid;
@@ -219,10 +233,7 @@
     sp<DataSource> mDataSource;
     sp<NuCachedSource2> mCachedSource;
     sp<DataSource> mHttpSource;
-    sp<WVMExtractor> mWVMExtractor;
     sp<MetaData> mFileMeta;
-    DrmManagerClient *mDrmManagerClient;
-    sp<DecryptHandle> mDecryptHandle;
     bool mStarted;
     bool mStopRead;
     int64_t mBitrate;
@@ -239,9 +250,7 @@
     void resetDataSource();
 
     status_t initFromDataSource();
-    void checkDrmStatus(const sp<DataSource>& dataSource);
     int64_t getLastReadPosition();
-    void setDrmPlaybackStatusIfNeeded(int playbackStatus, int64_t position);
 
     void notifyPreparedAndCleanup(status_t err);
     void onSecureDecodersInstantiated(status_t err);
@@ -261,7 +270,7 @@
     status_t doSelectTrack(size_t trackIndex, bool select, int64_t timeUs);
 
     void onSeek(const sp<AMessage>& msg);
-    status_t doSeek(int64_t seekTimeUs);
+    status_t doSeek(int64_t seekTimeUs, MediaPlayerSeekMode mode);
 
     void onPrepareAsync();
 
@@ -279,19 +288,31 @@
 
     sp<ABuffer> mediaBufferToABuffer(
             MediaBuffer *mbuf,
-            media_track_type trackType,
-            int64_t seekTimeUs,
-            int64_t *actualTimeUs = NULL);
+            media_track_type trackType);
 
     void postReadBuffer(media_track_type trackType);
     void onReadBuffer(const sp<AMessage>& msg);
+    // When |mode| is MediaPlayerSeekMode::SEEK_CLOSEST, the buffer read shall
+    // include an item indicating skipping rendering all buffers with timestamp
+    // earlier than |seekTimeUs|.
+    // For other modes, the buffer read will not include the item as above in order
+    // to facilitate fast seek operation.
     void readBuffer(
             media_track_type trackType,
-            int64_t seekTimeUs = -1ll, int64_t *actualTimeUs = NULL, bool formatChange = false);
+            int64_t seekTimeUs = -1ll,
+            MediaPlayerSeekMode mode = MediaPlayerSeekMode::SEEK_PREVIOUS_SYNC,
+            int64_t *actualTimeUs = NULL, bool formatChange = false);
 
     void queueDiscontinuityIfNeeded(
             bool seeking, bool formatChange, media_track_type trackType, Track *track);
 
+    // Modular DRM
+    bool mIsDrmProtected;
+    Vector<String8> mMimes;
+
+    status_t checkDrmInfo();
+    status_t onPrepareDrm(const sp<AMessage> &msg);
+
     DISALLOW_EVIL_CONSTRUCTORS(GenericSource);
 };
 
diff --git a/media/libmediaplayerservice/nuplayer/HTTPLiveSource.cpp b/media/libmediaplayerservice/nuplayer/HTTPLiveSource.cpp
index 5027e01..ad4c223 100644
--- a/media/libmediaplayerservice/nuplayer/HTTPLiveSource.cpp
+++ b/media/libmediaplayerservice/nuplayer/HTTPLiveSource.cpp
@@ -32,6 +32,11 @@
 #include <media/stagefright/MediaDefs.h>
 #include <media/stagefright/Utils.h>
 
+// default buffer prepare/ready/underflow marks
+static const int kReadyMarkMs     = 5000;  // 5 seconds
+static const int kPrepareMarkMs   = 1500;  // 1.5 seconds
+static const int kUnderflowMarkMs = 1000;  // 1 second
+
 namespace android {
 
 NuPlayer::HTTPLiveSource::HTTPLiveSource(
@@ -49,6 +54,7 @@
       mFetchMetaDataGeneration(0),
       mHasMetadata(false),
       mMetadataSelected(false) {
+    getDefaultBufferingSettings(&mBufferingSettings);
     if (headers) {
         mExtraHeaders = *headers;
 
@@ -76,6 +82,42 @@
     }
 }
 
+status_t NuPlayer::HTTPLiveSource::getDefaultBufferingSettings(
+            BufferingSettings* buffering /* nonnull */) {
+    buffering->mInitialBufferingMode = BUFFERING_MODE_TIME_ONLY;
+    buffering->mRebufferingMode = BUFFERING_MODE_TIME_ONLY;
+    buffering->mInitialWatermarkMs = kPrepareMarkMs;
+    buffering->mRebufferingWatermarkLowMs = kUnderflowMarkMs;
+    buffering->mRebufferingWatermarkHighMs = kReadyMarkMs;
+
+    return OK;
+}
+
+status_t NuPlayer::HTTPLiveSource::setBufferingSettings(const BufferingSettings& buffering) {
+    if (buffering.IsSizeBasedBufferingMode(buffering.mInitialBufferingMode)
+            || buffering.IsSizeBasedBufferingMode(buffering.mRebufferingMode)
+            || (buffering.IsTimeBasedBufferingMode(buffering.mRebufferingMode)
+                && buffering.mRebufferingWatermarkLowMs > buffering.mRebufferingWatermarkHighMs)) {
+        return BAD_VALUE;
+    }
+
+    mBufferingSettings = buffering;
+
+    if (mBufferingSettings.mInitialBufferingMode == BUFFERING_MODE_NONE) {
+        mBufferingSettings.mInitialWatermarkMs = BufferingSettings::kNoWatermark;
+    }
+    if (mBufferingSettings.mRebufferingMode == BUFFERING_MODE_NONE) {
+        mBufferingSettings.mRebufferingWatermarkLowMs = BufferingSettings::kNoWatermark;
+        mBufferingSettings.mRebufferingWatermarkHighMs = INT32_MAX;
+    }
+
+    if (mLiveSession != NULL) {
+        mLiveSession->setBufferingSettings(mBufferingSettings);
+    }
+
+    return OK;
+}
+
 void NuPlayer::HTTPLiveSource::prepareAsync() {
     if (mLiveLooper == NULL) {
         mLiveLooper = new ALooper;
@@ -94,6 +136,7 @@
 
     mLiveLooper->registerHandler(mLiveSession);
 
+    mLiveSession->setBufferingSettings(mBufferingSettings);
     mLiveSession->connectAsync(
             mURL.c_str(), mExtraHeaders.isEmpty() ? NULL : &mExtraHeaders);
 }
@@ -214,8 +257,12 @@
     return (err == OK || err == BAD_VALUE) ? (status_t)OK : err;
 }
 
-status_t NuPlayer::HTTPLiveSource::seekTo(int64_t seekTimeUs) {
-    return mLiveSession->seekTo(seekTimeUs);
+status_t NuPlayer::HTTPLiveSource::seekTo(int64_t seekTimeUs, MediaPlayerSeekMode mode) {
+    if (mLiveSession->isSeekable()) {
+        return mLiveSession->seekTo(seekTimeUs, mode);
+    } else {
+        return INVALID_OPERATION;
+    }
 }
 
 void NuPlayer::HTTPLiveSource::pollForRawData(
@@ -317,8 +364,9 @@
                 notifyVideoSizeChanged();
             }
 
-            uint32_t flags = FLAG_CAN_PAUSE;
+            uint32_t flags = 0;
             if (mLiveSession->isSeekable()) {
+                flags |= FLAG_CAN_PAUSE;
                 flags |= FLAG_CAN_SEEK;
                 flags |= FLAG_CAN_SEEK_BACKWARD;
                 flags |= FLAG_CAN_SEEK_FORWARD;
diff --git a/media/libmediaplayerservice/nuplayer/HTTPLiveSource.h b/media/libmediaplayerservice/nuplayer/HTTPLiveSource.h
index 574937d..2866a6a 100644
--- a/media/libmediaplayerservice/nuplayer/HTTPLiveSource.h
+++ b/media/libmediaplayerservice/nuplayer/HTTPLiveSource.h
@@ -34,6 +34,10 @@
             const char *url,
             const KeyedVector<String8, String8> *headers);
 
+    virtual status_t getDefaultBufferingSettings(
+            BufferingSettings* buffering /* nonnull */) override;
+    virtual status_t setBufferingSettings(const BufferingSettings& buffering) override;
+
     virtual void prepareAsync();
     virtual void start();
 
@@ -47,7 +51,9 @@
     virtual sp<AMessage> getTrackInfo(size_t trackIndex) const;
     virtual ssize_t getSelectedTrack(media_track_type /* type */) const;
     virtual status_t selectTrack(size_t trackIndex, bool select, int64_t timeUs);
-    virtual status_t seekTo(int64_t seekTimeUs);
+    virtual status_t seekTo(
+            int64_t seekTimeUs,
+            MediaPlayerSeekMode mode = MediaPlayerSeekMode::SEEK_PREVIOUS_SYNC) override;
 
 protected:
     virtual ~HTTPLiveSource();
@@ -78,6 +84,7 @@
     int32_t mFetchMetaDataGeneration;
     bool mHasMetadata;
     bool mMetadataSelected;
+    BufferingSettings mBufferingSettings;
 
     void onSessionNotify(const sp<AMessage> &msg);
     void pollForRawData(
diff --git a/media/libmediaplayerservice/nuplayer/NuPlayer.cpp b/media/libmediaplayerservice/nuplayer/NuPlayer.cpp
index 53a1843..50d5343 100644
--- a/media/libmediaplayerservice/nuplayer/NuPlayer.cpp
+++ b/media/libmediaplayerservice/nuplayer/NuPlayer.cpp
@@ -16,6 +16,9 @@
 
 //#define LOG_NDEBUG 0
 #define LOG_TAG "NuPlayer"
+
+#include <inttypes.h>
+
 #include <utils/Log.h>
 
 #include "NuPlayer.h"
@@ -39,6 +42,7 @@
 
 #include <media/AudioResamplerPublic.h>
 #include <media/AVSyncSettings.h>
+#include <media/MediaCodecBuffer.h>
 
 #include <media/stagefright/foundation/hexdump.h>
 #include <media/stagefright/foundation/ABuffer.h>
@@ -69,16 +73,18 @@
 };
 
 struct NuPlayer::SeekAction : public Action {
-    explicit SeekAction(int64_t seekTimeUs)
-        : mSeekTimeUs(seekTimeUs) {
+    explicit SeekAction(int64_t seekTimeUs, MediaPlayerSeekMode mode)
+        : mSeekTimeUs(seekTimeUs),
+          mMode(mode) {
     }
 
     virtual void execute(NuPlayer *player) {
-        player->performSeek(mSeekTimeUs);
+        player->performSeek(mSeekTimeUs, mMode);
     }
 
 private:
     int64_t mSeekTimeUs;
+    MediaPlayerSeekMode mMode;
 
     DISALLOW_EVIL_CONSTRUCTORS(SeekAction);
 };
@@ -193,7 +199,8 @@
       mSourceStarted(false),
       mPaused(false),
       mPausedByClient(true),
-      mPausedForBuffering(false) {
+      mPausedForBuffering(false),
+      mIsDrmProtected(false) {
     clearFlushComplete();
 }
 
@@ -248,21 +255,23 @@
     sp<Source> source;
     if (IsHTTPLiveURL(url)) {
         source = new HTTPLiveSource(notify, httpService, url, headers);
+        ALOGV("setDataSourceAsync HTTPLiveSource %s", url);
     } else if (!strncasecmp(url, "rtsp://", 7)) {
         source = new RTSPSource(
                 notify, httpService, url, headers, mUIDValid, mUID);
+        ALOGV("setDataSourceAsync RTSPSource %s", url);
     } else if ((!strncasecmp(url, "http://", 7)
                 || !strncasecmp(url, "https://", 8))
                     && ((len >= 4 && !strcasecmp(".sdp", &url[len - 4]))
                     || strstr(url, ".sdp?"))) {
         source = new RTSPSource(
                 notify, httpService, url, headers, mUIDValid, mUID, true);
+        ALOGV("setDataSourceAsync RTSPSource http/https/.sdp %s", url);
     } else {
+        ALOGV("setDataSourceAsync GenericSource %s", url);
+
         sp<GenericSource> genericSource =
                 new GenericSource(notify, mUIDValid, mUID);
-        // Don't set FLAG_SECURE on mSourceFlags here for widevine.
-        // The correct flags will be updated in Source::kWhatFlagsChanged
-        // handler when  GenericSource is prepared.
 
         status_t err = genericSource->setDataSource(httpService, url, headers);
 
@@ -284,6 +293,9 @@
     sp<GenericSource> source =
             new GenericSource(notify, mUIDValid, mUID);
 
+    ALOGV("setDataSourceAsync fd %d/%lld/%lld source: %p",
+            fd, (long long)offset, (long long)length, source.get());
+
     status_t err = source->setDataSource(fd, offset, length);
 
     if (err != OK) {
@@ -311,7 +323,34 @@
     msg->post();
 }
 
+status_t NuPlayer::getDefaultBufferingSettings(
+        BufferingSettings *buffering /* nonnull */) {
+    sp<AMessage> msg = new AMessage(kWhatGetDefaultBufferingSettings, this);
+    sp<AMessage> response;
+    status_t err = msg->postAndAwaitResponse(&response);
+    if (err == OK && response != NULL) {
+        CHECK(response->findInt32("err", &err));
+        if (err == OK) {
+            readFromAMessage(response, buffering);
+        }
+    }
+    return err;
+}
+
+status_t NuPlayer::setBufferingSettings(const BufferingSettings& buffering) {
+    sp<AMessage> msg = new AMessage(kWhatSetBufferingSettings, this);
+    writeToAMessage(msg, buffering);
+    sp<AMessage> response;
+    status_t err = msg->postAndAwaitResponse(&response);
+    if (err == OK && response != NULL) {
+        CHECK(response->findInt32("err", &err));
+    }
+    return err;
+}
+
 void NuPlayer::prepareAsync() {
+    ALOGV("prepareAsync");
+
     (new AMessage(kWhatPrepare, this))->post();
 }
 
@@ -419,9 +458,10 @@
     (new AMessage(kWhatReset, this))->post();
 }
 
-void NuPlayer::seekToAsync(int64_t seekTimeUs, bool needNotify) {
+void NuPlayer::seekToAsync(int64_t seekTimeUs, MediaPlayerSeekMode mode, bool needNotify) {
     sp<AMessage> msg = new AMessage(kWhatSeek, this);
     msg->setInt64("seekTimeUs", seekTimeUs);
+    msg->setInt32("mode", mode);
     msg->setInt32("needNotify", needNotify);
     msg->post();
 }
@@ -504,8 +544,52 @@
             break;
         }
 
+        case kWhatGetDefaultBufferingSettings:
+        {
+            sp<AReplyToken> replyID;
+            CHECK(msg->senderAwaitsResponse(&replyID));
+
+            ALOGV("kWhatGetDefaultBufferingSettings");
+            BufferingSettings buffering;
+            status_t err = OK;
+            if (mSource != NULL) {
+                err = mSource->getDefaultBufferingSettings(&buffering);
+            } else {
+                err = INVALID_OPERATION;
+            }
+            sp<AMessage> response = new AMessage;
+            if (err == OK) {
+                writeToAMessage(response, buffering);
+            }
+            response->setInt32("err", err);
+            response->postReply(replyID);
+            break;
+        }
+
+        case kWhatSetBufferingSettings:
+        {
+            sp<AReplyToken> replyID;
+            CHECK(msg->senderAwaitsResponse(&replyID));
+
+            ALOGV("kWhatSetBufferingSettings");
+            BufferingSettings buffering;
+            readFromAMessage(msg, &buffering);
+            status_t err = OK;
+            if (mSource != NULL) {
+                err = mSource->setBufferingSettings(buffering);
+            } else {
+                err = INVALID_OPERATION;
+            }
+            sp<AMessage> response = new AMessage;
+            response->setInt32("err", err);
+            response->postReply(replyID);
+            break;
+        }
+
         case kWhatPrepare:
         {
+            ALOGV("onMessageReceived kWhatPrepare");
+
             mSource->prepareAsync();
             break;
         }
@@ -680,7 +764,8 @@
                     int64_t currentPositionUs = 0;
                     if (getCurrentPosition(&currentPositionUs) == OK) {
                         mDeferredActions.push_back(
-                                new SeekAction(currentPositionUs));
+                                new SeekAction(currentPositionUs,
+                                        MediaPlayerSeekMode::SEEK_PREVIOUS_SYNC /* mode */));
                     }
                 }
 
@@ -1061,11 +1146,6 @@
                     case SHUTTING_DOWN_DECODER:
                         break; // Wait for shutdown to complete.
                     case FLUSHED:
-                        // Widevine source reads must stop before releasing the video decoder.
-                        if (!audio && mSource != NULL && mSourceFlags & Source::FLAG_SECURE) {
-                            mSource->stop();
-                            mSourceStarted = false;
-                        }
                         getDecoder(audio)->initiateShutdown(); // In the middle of a seek.
                         *flushing = SHUTTING_DOWN_DECODER;     // Shut down.
                         break;
@@ -1196,12 +1276,14 @@
         case kWhatSeek:
         {
             int64_t seekTimeUs;
+            int32_t mode;
             int32_t needNotify;
             CHECK(msg->findInt64("seekTimeUs", &seekTimeUs));
+            CHECK(msg->findInt32("mode", &mode));
             CHECK(msg->findInt32("needNotify", &needNotify));
 
-            ALOGV("kWhatSeek seekTimeUs=%lld us, needNotify=%d",
-                    (long long)seekTimeUs, needNotify);
+            ALOGV("kWhatSeek seekTimeUs=%lld us, mode=%d, needNotify=%d",
+                    (long long)seekTimeUs, mode, needNotify);
 
             if (!mStarted) {
                 // Seek before the player is started. In order to preview video,
@@ -1209,7 +1291,7 @@
                 // only once if needed. After the player is started, any seek
                 // operation will go through normal path.
                 // Audio-only cases are handled separately.
-                onStart(seekTimeUs);
+                onStart(seekTimeUs, (MediaPlayerSeekMode)mode);
                 if (mStarted) {
                     onPause();
                     mPausedByClient = true;
@@ -1225,7 +1307,7 @@
                                            FLUSH_CMD_FLUSH /* video */));
 
             mDeferredActions.push_back(
-                    new SeekAction(seekTimeUs));
+                    new SeekAction(seekTimeUs, (MediaPlayerSeekMode)mode));
 
             // After a flush without shutdown, decoder is paused.
             // Don't resume it until source seek is done, otherwise it could
@@ -1256,6 +1338,30 @@
             break;
         }
 
+        case kWhatPrepareDrm:
+        {
+            status_t status = onPrepareDrm(msg);
+
+            sp<AMessage> response = new AMessage;
+            response->setInt32("status", status);
+            sp<AReplyToken> replyID;
+            CHECK(msg->senderAwaitsResponse(&replyID));
+            response->postReply(replyID);
+            break;
+        }
+
+        case kWhatReleaseDrm:
+        {
+            status_t status = onReleaseDrm();
+
+            sp<AMessage> response = new AMessage;
+            response->setInt32("status", status);
+            sp<AReplyToken> replyID;
+            CHECK(msg->senderAwaitsResponse(&replyID));
+            response->postReply(replyID);
+            break;
+        }
+
         default:
             TRESPASS();
             break;
@@ -1283,6 +1389,8 @@
     } else {
         ALOGW("resume called when renderer is gone or not set");
     }
+
+    mLastStartedPlayingTimeNs = systemTime();
 }
 
 status_t NuPlayer::onInstantiateSecureDecoders() {
@@ -1314,13 +1422,16 @@
     return OK;
 }
 
-void NuPlayer::onStart(int64_t startPositionUs) {
+void NuPlayer::onStart(int64_t startPositionUs, MediaPlayerSeekMode mode) {
+    ALOGV("onStart: mCrypto: %p (%d)", mCrypto.get(),
+            (mCrypto != NULL ? mCrypto->getStrongCount() : 0));
+
     if (!mSourceStarted) {
         mSourceStarted = true;
         mSource->start();
     }
     if (startPositionUs > 0) {
-        performSeek(startPositionUs);
+        performSeek(startPositionUs, mode);
         if (mSource->getFormat(false /* audio */) == NULL) {
             return;
         }
@@ -1359,6 +1470,13 @@
     mOffloadAudio =
         canOffloadStream(audioMeta, hasVideo, mSource->isStreaming(), streamType)
                 && (mPlaybackSettings.mSpeed == 1.f && mPlaybackSettings.mPitch == 1.f);
+
+    // Modular DRM: Disabling audio offload if the source is protected
+    if (mOffloadAudio && mIsDrmProtected) {
+        mOffloadAudio = false;
+        ALOGV("onStart: Disabling mOffloadAudio now that the source is protected.");
+    }
+
     if (mOffloadAudio) {
         flags |= Renderer::FLAG_OFFLOAD_AUDIO;
     }
@@ -1392,6 +1510,8 @@
         mAudioDecoder->setRenderer(mRenderer);
     }
 
+    mLastStartedPlayingTimeNs = systemTime();
+
     postScanSources();
 }
 
@@ -1410,6 +1530,16 @@
     } else {
         ALOGW("pause called when renderer is gone or not set");
     }
+
+    sp<NuPlayerDriver> driver = mDriver.promote();
+    if (driver != NULL) {
+        int64_t now = systemTime();
+        int64_t played = now - mLastStartedPlayingTimeNs;
+        ALOGD("played from %" PRId64 " to %" PRId64 " = %" PRId64 ,
+              mLastStartedPlayingTimeNs, now, played);
+
+        driver->notifyMorePlayingTimeUs((played+500)/1000);
+    }
 }
 
 bool NuPlayer::audioDecoderStillNeeded() {
@@ -1439,13 +1569,6 @@
             *state = SHUTTING_DOWN_DECODER;
 
             ALOGV("initiating %s decoder shutdown", audio ? "audio" : "video");
-            if (!audio) {
-                // Widevine source reads must stop before releasing the video decoder.
-                if (mSource != NULL && mSourceFlags & Source::FLAG_SECURE) {
-                    mSource->stop();
-                    mSourceStarted = false;
-                }
-            }
             getDecoder(audio)->initiateShutdown();
             break;
         }
@@ -1536,7 +1659,7 @@
         mRenderer->flush(false /* audio */, false /* notifyComplete */);
     }
 
-    performSeek(currentPositionUs);
+    performSeek(currentPositionUs, MediaPlayerSeekMode::SEEK_PREVIOUS_SYNC /* mode */);
 
     if (forceNonOffload) {
         mRenderer->signalDisableOffloadAudio();
@@ -1562,9 +1685,16 @@
     sp<AMessage> videoFormat = mSource->getFormat(false /* audio */);
     audio_stream_type_t streamType = mAudioSink->getAudioStreamType();
     const bool hasVideo = (videoFormat != NULL);
-    const bool canOffload = canOffloadStream(
+    bool canOffload = canOffloadStream(
             audioMeta, hasVideo, mSource->isStreaming(), streamType)
                     && (mPlaybackSettings.mSpeed == 1.f && mPlaybackSettings.mPitch == 1.f);
+
+    // Modular DRM: Disabling audio offload if the source is protected
+    if (canOffload && mIsDrmProtected) {
+        canOffload = false;
+        ALOGV("determineAudioModeChange: Disabling mOffloadAudio b/c the source is protected.");
+    }
+
     if (canOffload) {
         if (!mOffloadAudio) {
             mRenderer->signalEnableOffloadAudio();
@@ -1637,10 +1767,12 @@
             const bool hasVideo = (mSource->getFormat(false /*audio */) != NULL);
             format->setInt32("has-video", hasVideo);
             *decoder = new DecoderPassThrough(notify, mSource, mRenderer);
+            ALOGV("instantiateDecoder audio DecoderPassThrough  hasVideo: %d", hasVideo);
         } else {
             mSource->setOffloadAudio(false /* offload */);
 
-            *decoder = new Decoder(notify, mSource, mPID, mRenderer);
+            *decoder = new Decoder(notify, mSource, mPID, mUID, mRenderer);
+            ALOGV("instantiateDecoder audio Decoder");
         }
     } else {
         sp<AMessage> notify = new AMessage(kWhatVideoNotify, this);
@@ -1648,45 +1780,29 @@
         notify->setInt32("generation", mVideoDecoderGeneration);
 
         *decoder = new Decoder(
-                notify, mSource, mPID, mRenderer, mSurface, mCCDecoder);
+                notify, mSource, mPID, mUID, mRenderer, mSurface, mCCDecoder);
 
         // enable FRC if high-quality AV sync is requested, even if not
         // directly queuing to display, as this will even improve textureview
         // playback.
         {
-            char value[PROPERTY_VALUE_MAX];
-            if (property_get("persist.sys.media.avsync", value, NULL) &&
-                    (!strcmp("1", value) || !strcasecmp("true", value))) {
+            if (property_get_bool("persist.sys.media.avsync", false)) {
                 format->setInt32("auto-frc", 1);
             }
         }
     }
     (*decoder)->init();
-    (*decoder)->configure(format);
 
-    // allocate buffers to decrypt widevine source buffers
-    if (!audio && (mSourceFlags & Source::FLAG_SECURE)) {
-        Vector<sp<ABuffer> > inputBufs;
-        CHECK_EQ((*decoder)->getInputBuffers(&inputBufs), (status_t)OK);
-
-        Vector<MediaBuffer *> mediaBufs;
-        for (size_t i = 0; i < inputBufs.size(); i++) {
-            const sp<ABuffer> &buffer = inputBufs[i];
-            MediaBuffer *mbuf = new MediaBuffer(buffer->data(), buffer->size());
-            mediaBufs.push(mbuf);
-        }
-
-        status_t err = mSource->setBuffers(audio, mediaBufs);
-        if (err != OK) {
-            for (size_t i = 0; i < mediaBufs.size(); ++i) {
-                mediaBufs[i]->release();
-            }
-            mediaBufs.clear();
-            ALOGE("Secure source didn't support secure mediaBufs.");
-            return err;
-        }
+    // Modular DRM
+    if (mIsDrmProtected) {
+        format->setPointer("crypto", mCrypto.get());
+        ALOGV("instantiateDecoder: mCrypto: %p (%d) isSecure: %d", mCrypto.get(),
+                (mCrypto != NULL ? mCrypto->getStrongCount() : 0),
+                (mSourceFlags & Source::FLAG_SECURE) != 0);
     }
 
+    (*decoder)->configure(format);
+
     if (!audio) {
         sp<AMessage> params = new AMessage();
         float rate = getFrameRate();
@@ -1759,12 +1875,27 @@
     // Take into account sample aspect ratio if necessary:
     int32_t sarWidth, sarHeight;
     if (inputFormat->findInt32("sar-width", &sarWidth)
-            && inputFormat->findInt32("sar-height", &sarHeight)) {
+            && inputFormat->findInt32("sar-height", &sarHeight)
+            && sarWidth > 0 && sarHeight > 0) {
         ALOGV("Sample aspect ratio %d : %d", sarWidth, sarHeight);
 
         displayWidth = (displayWidth * sarWidth) / sarHeight;
 
         ALOGV("display dimensions %d x %d", displayWidth, displayHeight);
+    } else {
+        int32_t width, height;
+        if (inputFormat->findInt32("display-width", &width)
+                && inputFormat->findInt32("display-height", &height)
+                && width > 0 && height > 0
+                && displayWidth > 0 && displayHeight > 0) {
+            if (displayHeight * (int64_t)width / height > (int64_t)displayWidth) {
+                displayHeight = (int32_t)(displayWidth * (int64_t)height / width);
+            } else {
+                displayWidth = (int32_t)(displayHeight * (int64_t)width / height);
+            }
+            ALOGV("Video display width and height are overridden to %d x %d",
+                 displayWidth, displayHeight);
+        }
     }
 
     int32_t rotationDegrees;
@@ -1989,10 +2120,9 @@
     }
 }
 
-void NuPlayer::performSeek(int64_t seekTimeUs) {
-    ALOGV("performSeek seekTimeUs=%lld us (%.2f secs)",
-          (long long)seekTimeUs,
-          seekTimeUs / 1E6);
+void NuPlayer::performSeek(int64_t seekTimeUs, MediaPlayerSeekMode mode) {
+    ALOGV("performSeek seekTimeUs=%lld us (%.2f secs), mode=%d",
+          (long long)seekTimeUs, seekTimeUs / 1E6, mode);
 
     if (mSource == NULL) {
         // This happens when reset occurs right before the loop mode
@@ -2003,7 +2133,7 @@
         return;
     }
     mPreviousSeekTimeUs = seekTimeUs;
-    mSource->seekTo(seekTimeUs);
+    mSource->seekTo(seekTimeUs, mode);
     ++mTimedTextGeneration;
 
     // everything's flushed, continue playback.
@@ -2065,6 +2195,16 @@
     mPrepared = false;
     mResetting = false;
     mSourceStarted = false;
+
+    // Modular DRM
+    if (mCrypto != NULL) {
+        // decoders will be flushed before this so their mCrypto would go away on their own
+        // TODO change to ALOGV
+        ALOGD("performReset mCrypto: %p (%d)", mCrypto.get(),
+                (mCrypto != NULL ? mCrypto->getStrongCount() : 0));
+        mCrypto.clear();
+    }
+    mIsDrmProtected = false;
 }
 
 void NuPlayer::performScanSources() {
@@ -2159,6 +2299,7 @@
 
         case Source::kWhatPrepared:
         {
+            ALOGV("NuPlayer::onSourceNotify Source::kWhatPrepared source: %p", mSource.get());
             if (mSource == NULL) {
                 // This is a stale notification from a source that was
                 // asynchronously preparing when the client called reset().
@@ -2193,6 +2334,22 @@
             break;
         }
 
+        // Modular DRM
+        case Source::kWhatDrmInfo:
+        {
+            Parcel parcel;
+            sp<ABuffer> drmInfo;
+            CHECK(msg->findBuffer("drmInfo", &drmInfo));
+            parcel.setData(drmInfo->data(), drmInfo->size());
+
+            ALOGV("onSourceNotify() kWhatDrmInfo MEDIA_DRM_INFO drmInfo: %p  parcel size: %zu",
+                    drmInfo.get(), parcel.dataSize());
+
+            notifyListener(MEDIA_DRM_INFO, 0 /* ext1 */, 0 /* ext2 */, &parcel);
+
+            break;
+        }
+
         case Source::kWhatFlagsChanged:
         {
             uint32_t flags;
@@ -2200,6 +2357,19 @@
 
             sp<NuPlayerDriver> driver = mDriver.promote();
             if (driver != NULL) {
+
+                ALOGV("onSourceNotify() kWhatFlagsChanged  FLAG_CAN_PAUSE: %d  "
+                        "FLAG_CAN_SEEK_BACKWARD: %d \n\t\t\t\t FLAG_CAN_SEEK_FORWARD: %d  "
+                        "FLAG_CAN_SEEK: %d  FLAG_DYNAMIC_DURATION: %d \n"
+                        "\t\t\t\t FLAG_SECURE: %d  FLAG_PROTECTED: %d",
+                        (flags & Source::FLAG_CAN_PAUSE) != 0,
+                        (flags & Source::FLAG_CAN_SEEK_BACKWARD) != 0,
+                        (flags & Source::FLAG_CAN_SEEK_FORWARD) != 0,
+                        (flags & Source::FLAG_CAN_SEEK) != 0,
+                        (flags & Source::FLAG_DYNAMIC_DURATION) != 0,
+                        (flags & Source::FLAG_SECURE) != 0,
+                        (flags & Source::FLAG_PROTECTED) != 0);
+
                 if ((flags & NuPlayer::Source::FLAG_CAN_SEEK) == 0) {
                     driver->notifyListener(
                             MEDIA_INFO, MEDIA_INFO_NOT_SEEKABLE, 0);
@@ -2450,6 +2620,136 @@
         notifyListener(MEDIA_TIMED_TEXT, 0, 0);
     }
 }
+
+// Modular DRM begin
+status_t NuPlayer::prepareDrm(const uint8_t uuid[16], const Vector<uint8_t> &drmSessionId)
+{
+    ALOGV("prepareDrm ");
+
+    // Passing to the looper anyway; called in a pre-config prepared state so no race on mCrypto
+    sp<AMessage> msg = new AMessage(kWhatPrepareDrm, this);
+    // synchronous call so just passing the address but with local copies of "const" args
+    uint8_t UUID[16];
+    memcpy(UUID, uuid, sizeof(UUID));
+    Vector<uint8_t> sessionId = drmSessionId;
+    msg->setPointer("uuid", (void*)UUID);
+    msg->setPointer("drmSessionId", (void*)&sessionId);
+
+    sp<AMessage> response;
+    status_t status = msg->postAndAwaitResponse(&response);
+
+    if (status == OK && response != NULL) {
+        CHECK(response->findInt32("status", &status));
+        ALOGV("prepareDrm ret: %d ", status);
+    } else {
+        ALOGE("prepareDrm err: %d", status);
+    }
+
+    return status;
+}
+
+status_t NuPlayer::releaseDrm()
+{
+    ALOGV("releaseDrm ");
+
+    sp<AMessage> msg = new AMessage(kWhatReleaseDrm, this);
+
+    sp<AMessage> response;
+    status_t status = msg->postAndAwaitResponse(&response);
+
+    if (status == OK && response != NULL) {
+        CHECK(response->findInt32("status", &status));
+        ALOGV("releaseDrm ret: %d ", status);
+    } else {
+        ALOGE("releaseDrm err: %d", status);
+    }
+
+    return status;
+}
+
+status_t NuPlayer::onPrepareDrm(const sp<AMessage> &msg)
+{
+    // TODO change to ALOGV
+    ALOGD("onPrepareDrm ");
+
+    status_t status = INVALID_OPERATION;
+    if (mSource == NULL) {
+        ALOGE("onPrepareDrm: No source. onPrepareDrm failed with %d.", status);
+        return status;
+    }
+
+    uint8_t *uuid;
+    Vector<uint8_t> *drmSessionId;
+    CHECK(msg->findPointer("uuid", (void**)&uuid));
+    CHECK(msg->findPointer("drmSessionId", (void**)&drmSessionId));
+
+    status = OK;
+    sp<ICrypto> crypto = NULL;
+
+    status = mSource->prepareDrm(uuid, *drmSessionId, &crypto);
+    if (crypto == NULL) {
+        ALOGE("onPrepareDrm: mSource->prepareDrm failed. status: %d", status);
+        return status;
+    }
+    ALOGV("onPrepareDrm: mSource->prepareDrm succeeded");
+
+    if (mCrypto != NULL) {
+        ALOGE("onPrepareDrm: Unexpected. Already having mCrypto: %p (%d)",
+                mCrypto.get(), mCrypto->getStrongCount());
+        mCrypto.clear();
+    }
+
+    mCrypto = crypto;
+    mIsDrmProtected = true;
+    // TODO change to ALOGV
+    ALOGD("onPrepareDrm: mCrypto: %p (%d)", mCrypto.get(),
+            (mCrypto != NULL ? mCrypto->getStrongCount() : 0));
+
+    return status;
+}
+
+status_t NuPlayer::onReleaseDrm()
+{
+    // TODO change to ALOGV
+    ALOGD("onReleaseDrm ");
+
+    if (!mIsDrmProtected) {
+        ALOGW("onReleaseDrm: Unexpected. mIsDrmProtected is already false.");
+    }
+
+    mIsDrmProtected = false;
+
+    status_t status;
+    if (mCrypto != NULL) {
+        status=OK;
+        // first making sure the codecs have released their crypto reference
+        const sp<DecoderBase> &videoDecoder = getDecoder(false/*audio*/);
+        if (videoDecoder != NULL) {
+            status = videoDecoder->releaseCrypto();
+            ALOGV("onReleaseDrm: video decoder ret: %d", status);
+        }
+
+        const sp<DecoderBase> &audioDecoder = getDecoder(true/*audio*/);
+        if (audioDecoder != NULL) {
+            status_t status_audio = audioDecoder->releaseCrypto();
+            if (status == OK) {   // otherwise, returning the first error
+                status = status_audio;
+            }
+            ALOGV("onReleaseDrm: audio decoder ret: %d", status_audio);
+        }
+
+        // TODO change to ALOGV
+        ALOGD("onReleaseDrm: mCrypto: %p (%d)", mCrypto.get(),
+                (mCrypto != NULL ? mCrypto->getStrongCount() : 0));
+        mCrypto.clear();
+    } else {   // mCrypto == NULL
+        ALOGE("onReleaseDrm: Unexpected. There is no crypto.");
+        status = INVALID_OPERATION;
+    }
+
+    return status;
+}
+// Modular DRM end
 ////////////////////////////////////////////////////////////////////////////////
 
 sp<AMessage> NuPlayer::Source::getFormat(bool audio) {
@@ -2482,12 +2782,24 @@
 }
 
 void NuPlayer::Source::notifyPrepared(status_t err) {
+    ALOGV("Source::notifyPrepared %d", err);
     sp<AMessage> notify = dupNotify();
     notify->setInt32("what", kWhatPrepared);
     notify->setInt32("err", err);
     notify->post();
 }
 
+void NuPlayer::Source::notifyDrmInfo(const sp<ABuffer> &drmInfoBuffer)
+{
+    ALOGV("Source::notifyDrmInfo");
+
+    sp<AMessage> notify = dupNotify();
+    notify->setInt32("what", kWhatDrmInfo);
+    notify->setBuffer("drmInfo", drmInfoBuffer);
+
+    notify->post();
+}
+
 void NuPlayer::Source::notifyInstantiateSecureDecoders(const sp<AMessage> &reply) {
     sp<AMessage> notify = dupNotify();
     notify->setInt32("what", kWhatInstantiateSecureDecoders);
diff --git a/media/libmediaplayerservice/nuplayer/NuPlayer.h b/media/libmediaplayerservice/nuplayer/NuPlayer.h
index a002f6f..d3cb7c1 100644
--- a/media/libmediaplayerservice/nuplayer/NuPlayer.h
+++ b/media/libmediaplayerservice/nuplayer/NuPlayer.h
@@ -19,6 +19,7 @@
 #define NU_PLAYER_H_
 
 #include <media/AudioResamplerPublic.h>
+#include <media/ICrypto.h>
 #include <media/MediaPlayerInterface.h>
 #include <media/stagefright/foundation/AHandler.h>
 
@@ -50,6 +51,9 @@
 
     void setDataSourceAsync(const sp<DataSource> &source);
 
+    status_t getDefaultBufferingSettings(BufferingSettings* buffering /* nonnull */);
+    status_t setBufferingSettings(const BufferingSettings& buffering);
+
     void prepareAsync();
 
     void setVideoSurfaceTextureAsync(
@@ -70,7 +74,10 @@
 
     // Will notify the driver through "notifySeekComplete" once finished
     // and needNotify is true.
-    void seekToAsync(int64_t seekTimeUs, bool needNotify = false);
+    void seekToAsync(
+            int64_t seekTimeUs,
+            MediaPlayerSeekMode mode = MediaPlayerSeekMode::SEEK_PREVIOUS_SYNC,
+            bool needNotify = false);
 
     status_t setVideoScalingMode(int32_t mode);
     status_t getTrackInfo(Parcel* reply) const;
@@ -82,6 +89,10 @@
     sp<MetaData> getFileMeta();
     float getFrameRate();
 
+    // Modular DRM
+    status_t prepareDrm(const uint8_t uuid[16], const Vector<uint8_t> &drmSessionId);
+    status_t releaseDrm();
+
 protected:
     virtual ~NuPlayer();
 
@@ -134,6 +145,10 @@
         kWhatGetTrackInfo               = 'gTrI',
         kWhatGetSelectedTrack           = 'gSel',
         kWhatSelectTrack                = 'selT',
+        kWhatGetDefaultBufferingSettings = 'gDBS',
+        kWhatSetBufferingSettings       = 'sBuS',
+        kWhatPrepareDrm                 = 'pDrm',
+        kWhatReleaseDrm                 = 'rDrm',
     };
 
     wp<NuPlayerDriver> mDriver;
@@ -155,6 +170,8 @@
     int32_t mVideoDecoderGeneration;
     int32_t mRendererGeneration;
 
+    int64_t mLastStartedPlayingTimeNs;
+
     int64_t mPreviousSeekTimeUs;
 
     List<sp<Action> > mDeferredActions;
@@ -213,6 +230,10 @@
     // Pause state as requested by source (internally) due to buffering
     bool mPausedForBuffering;
 
+    // Modular DRM
+    sp<ICrypto> mCrypto;
+    bool mIsDrmProtected;
+
     inline const sp<DecoderBase> &getDecoder(bool audio) {
         return audio ? mAudioDecoder : mVideoDecoder;
     }
@@ -245,7 +266,9 @@
     void handleFlushComplete(bool audio, bool isDecoder);
     void finishFlushIfPossible();
 
-    void onStart(int64_t startPositionUs = -1);
+    void onStart(
+            int64_t startPositionUs = -1,
+            MediaPlayerSeekMode mode = MediaPlayerSeekMode::SEEK_PREVIOUS_SYNC);
     void onResume();
     void onPause();
 
@@ -263,7 +286,7 @@
 
     void processDeferredActions();
 
-    void performSeek(int64_t seekTimeUs);
+    void performSeek(int64_t seekTimeUs, MediaPlayerSeekMode mode);
     void performDecoderFlush(FlushCommand audio, FlushCommand video);
     void performReset();
     void performScanSources();
@@ -282,6 +305,9 @@
 
     void writeTrackInfo(Parcel* reply, const sp<AMessage>& format) const;
 
+    status_t onPrepareDrm(const sp<AMessage> &msg);
+    status_t onReleaseDrm();
+
     DISALLOW_EVIL_CONSTRUCTORS(NuPlayer);
 };
 
diff --git a/media/libmediaplayerservice/nuplayer/NuPlayerCCDecoder.cpp b/media/libmediaplayerservice/nuplayer/NuPlayerCCDecoder.cpp
index 978d360..73b07bb 100644
--- a/media/libmediaplayerservice/nuplayer/NuPlayerCCDecoder.cpp
+++ b/media/libmediaplayerservice/nuplayer/NuPlayerCCDecoder.cpp
@@ -72,37 +72,37 @@
 
         if (cc->mData1 >= 0x20 && cc->mData1 <= 0x7f) {
             // 2 basic chars
-            sprintf(tmp, "[%d]Basic: %c %c", cc->mType, cc->mData1, cc->mData2);
+            snprintf(tmp, sizeof(tmp), "[%d]Basic: %c %c", cc->mType, cc->mData1, cc->mData2);
         } else if ((cc->mData1 == 0x11 || cc->mData1 == 0x19)
                  && cc->mData2 >= 0x30 && cc->mData2 <= 0x3f) {
             // 1 special char
-            sprintf(tmp, "[%d]Special: %02x %02x", cc->mType, cc->mData1, cc->mData2);
+            snprintf(tmp, sizeof(tmp), "[%d]Special: %02x %02x", cc->mType, cc->mData1, cc->mData2);
         } else if ((cc->mData1 == 0x12 || cc->mData1 == 0x1A)
                  && cc->mData2 >= 0x20 && cc->mData2 <= 0x3f){
             // 1 Spanish/French char
-            sprintf(tmp, "[%d]Spanish: %02x %02x", cc->mType, cc->mData1, cc->mData2);
+            snprintf(tmp, sizeof(tmp), "[%d]Spanish: %02x %02x", cc->mType, cc->mData1, cc->mData2);
         } else if ((cc->mData1 == 0x13 || cc->mData1 == 0x1B)
                  && cc->mData2 >= 0x20 && cc->mData2 <= 0x3f){
             // 1 Portuguese/German/Danish char
-            sprintf(tmp, "[%d]German: %02x %02x", cc->mType, cc->mData1, cc->mData2);
+            snprintf(tmp, sizeof(tmp), "[%d]German: %02x %02x", cc->mType, cc->mData1, cc->mData2);
         } else if ((cc->mData1 == 0x11 || cc->mData1 == 0x19)
                  && cc->mData2 >= 0x20 && cc->mData2 <= 0x2f){
             // Mid-Row Codes (Table 69)
-            sprintf(tmp, "[%d]Mid-row: %02x %02x", cc->mType, cc->mData1, cc->mData2);
+            snprintf(tmp, sizeof(tmp), "[%d]Mid-row: %02x %02x", cc->mType, cc->mData1, cc->mData2);
         } else if (((cc->mData1 == 0x14 || cc->mData1 == 0x1c)
                   && cc->mData2 >= 0x20 && cc->mData2 <= 0x2f)
                   ||
                    ((cc->mData1 == 0x17 || cc->mData1 == 0x1f)
                   && cc->mData2 >= 0x21 && cc->mData2 <= 0x23)){
             // Misc Control Codes (Table 70)
-            sprintf(tmp, "[%d]Ctrl: %02x %02x", cc->mType, cc->mData1, cc->mData2);
+            snprintf(tmp, sizeof(tmp), "[%d]Ctrl: %02x %02x", cc->mType, cc->mData1, cc->mData2);
         } else if ((cc->mData1 & 0x70) == 0x10
                 && (cc->mData2 & 0x40) == 0x40
                 && ((cc->mData1 & 0x07) || !(cc->mData2 & 0x20)) ) {
             // Preamble Address Codes (Table 71)
-            sprintf(tmp, "[%d]PAC: %02x %02x", cc->mType, cc->mData1, cc->mData2);
+            snprintf(tmp, sizeof(tmp), "[%d]PAC: %02x %02x", cc->mType, cc->mData1, cc->mData2);
         } else {
-            sprintf(tmp, "[%d]Invalid: %02x %02x", cc->mType, cc->mData1, cc->mData2);
+            snprintf(tmp, sizeof(tmp), "[%d]Invalid: %02x %02x", cc->mType, cc->mData1, cc->mData2);
         }
 
         if (out.size() > 0) {
diff --git a/media/libmediaplayerservice/nuplayer/NuPlayerDecoder.cpp b/media/libmediaplayerservice/nuplayer/NuPlayerDecoder.cpp
index 594128c..9a2224e 100644
--- a/media/libmediaplayerservice/nuplayer/NuPlayerDecoder.cpp
+++ b/media/libmediaplayerservice/nuplayer/NuPlayerDecoder.cpp
@@ -23,11 +23,13 @@
 
 #include "NuPlayerCCDecoder.h"
 #include "NuPlayerDecoder.h"
+#include "NuPlayerDrm.h"
 #include "NuPlayerRenderer.h"
 #include "NuPlayerSource.h"
 
 #include <cutils/properties.h>
 #include <media/ICrypto.h>
+#include <media/MediaCodecBuffer.h>
 #include <media/stagefright/foundation/ABuffer.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/AMessage.h>
@@ -35,7 +37,7 @@
 #include <media/stagefright/MediaCodec.h>
 #include <media/stagefright/MediaDefs.h>
 #include <media/stagefright/MediaErrors.h>
-
+#include <media/stagefright/SurfaceUtils.h>
 #include <gui/Surface.h>
 
 #include "avc_utils.h"
@@ -57,6 +59,7 @@
         const sp<AMessage> &notify,
         const sp<Source> &source,
         pid_t pid,
+        uid_t uid,
         const sp<Renderer> &renderer,
         const sp<Surface> &surface,
         const sp<CCDecoder> &ccDecoder)
@@ -66,6 +69,7 @@
       mRenderer(renderer),
       mCCDecoder(ccDecoder),
       mPid(pid),
+      mUid(uid),
       mSkipRenderingUntilMediaTimeUs(-1ll),
       mNumFramesTotal(0ll),
       mNumInputFramesDropped(0ll),
@@ -200,6 +204,18 @@
             break;
         }
 
+        case kWhatAudioOutputFormatChanged:
+        {
+            if (!isStaleReply(msg)) {
+                status_t err;
+                if (msg->findInt32("err", &err) && err != OK) {
+                    ALOGE("Renderer reported 0x%x when changing audio output format", err);
+                    handleError(err);
+                }
+            }
+            break;
+        }
+
         case kWhatSetVideoSurface:
         {
             sp<AReplyToken> replyID;
@@ -216,21 +232,21 @@
                 //
                 // at this point MediaPlayerService::client has already connected to the
                 // surface, which MediaCodec does not expect
-                err = native_window_api_disconnect(surface.get(), NATIVE_WINDOW_API_MEDIA);
+                err = nativeWindowDisconnect(surface.get(), "kWhatSetVideoSurface(surface)");
                 if (err == OK) {
                     err = mCodec->setSurface(surface);
                     ALOGI_IF(err, "codec setSurface returned: %d", err);
                     if (err == OK) {
                         // reconnect to the old surface as MPS::Client will expect to
                         // be able to disconnect from it.
-                        (void)native_window_api_connect(mSurface.get(), NATIVE_WINDOW_API_MEDIA);
+                        (void)nativeWindowConnect(mSurface.get(), "kWhatSetVideoSurface(mSurface)");
                         mSurface = surface;
                     }
                 }
                 if (err != OK) {
                     // reconnect to the new surface on error as MPS::Client will expect to
                     // be able to disconnect from it.
-                    (void)native_window_api_connect(surface.get(), NATIVE_WINDOW_API_MEDIA);
+                    (void)nativeWindowConnect(surface.get(), "kWhatSetVideoSurface(err)");
                 }
             }
 
@@ -240,6 +256,13 @@
             break;
         }
 
+        case kWhatDrmReleaseCrypto:
+        {
+            ALOGV("kWhatDrmReleaseCrypto");
+            onReleaseCrypto(msg);
+            break;
+        }
+
         default:
             DecoderBase::onMessageReceived(msg);
             break;
@@ -265,7 +288,7 @@
     ALOGV("[%s] onConfigure (surface=%p)", mComponentName.c_str(), mSurface.get());
 
     mCodec = MediaCodec::CreateByType(
-            mCodecLooper, mime.c_str(), false /* encoder */, NULL /* err */, mPid);
+            mCodecLooper, mime.c_str(), false /* encoder */, NULL /* err */, mPid, mUid);
     int32_t secure = 0;
     if (format->findInt32("secure", &secure) && secure != 0) {
         if (mCodec != NULL) {
@@ -274,7 +297,7 @@
             mCodec->release();
             ALOGI("[%s] creating", mComponentName.c_str());
             mCodec = MediaCodec::CreateByComponentName(
-                    mCodecLooper, mComponentName.c_str(), NULL /* err */, mPid);
+                    mCodecLooper, mComponentName.c_str(), NULL /* err */, mPid, mUid);
         }
     }
     if (mCodec == NULL) {
@@ -290,15 +313,25 @@
     status_t err;
     if (mSurface != NULL) {
         // disconnect from surface as MediaCodec will reconnect
-        err = native_window_api_disconnect(
-                mSurface.get(), NATIVE_WINDOW_API_MEDIA);
+        err = nativeWindowDisconnect(mSurface.get(), "onConfigure");
         // We treat this as a warning, as this is a preparatory step.
         // Codec will try to connect to the surface, which is where
         // any error signaling will occur.
         ALOGW_IF(err != OK, "failed to disconnect from surface: %d", err);
     }
+
+    // Modular DRM
+    void *pCrypto;
+    if (!format->findPointer("crypto", &pCrypto)) {
+        pCrypto = NULL;
+    }
+    sp<ICrypto> crypto = (ICrypto*)pCrypto;
+    ALOGV("onConfigure mCrypto: %p (%d)  mIsSecure: %d",
+            crypto.get(), (crypto != NULL ? crypto->getStrongCount() : 0), mIsSecure);
+
     err = mCodec->configure(
-            format, mSurface, NULL /* crypto */, 0 /* flags */);
+            format, mSurface, crypto, 0 /* flags */);
+
     if (err != OK) {
         ALOGE("Failed to configure %s decoder (err=%d)", mComponentName.c_str(), err);
         mCodec->release();
@@ -408,17 +441,7 @@
 }
 
 void NuPlayer::Decoder::onSetRenderer(const sp<Renderer> &renderer) {
-    bool hadNoRenderer = (mRenderer == NULL);
     mRenderer = renderer;
-    if (hadNoRenderer && mRenderer != NULL) {
-        // this means that the widevine legacy source is ready
-        onRequestInputBuffers();
-    }
-}
-
-void NuPlayer::Decoder::onGetInputBuffers(
-        Vector<sp<ABuffer> > *dstBuffers) {
-    CHECK_EQ((status_t)OK, mCodec->getWidevineLegacyBuffers(dstBuffers));
 }
 
 void NuPlayer::Decoder::onResume(bool notifyComplete) {
@@ -486,8 +509,7 @@
 
         if (mSurface != NULL) {
             // reconnect to surface as MediaCodec disconnected from it
-            status_t error =
-                    native_window_api_connect(mSurface.get(), NATIVE_WINDOW_API_MEDIA);
+            status_t error = nativeWindowConnect(mSurface.get(), "onShutdown");
             ALOGW_IF(error != NO_ERROR,
                     "[%s] failed to connect to native window, error=%d",
                     mComponentName.c_str(), error);
@@ -515,9 +537,7 @@
  * returns true if we should request more data
  */
 bool NuPlayer::Decoder::doRequestBuffers() {
-    // mRenderer is only NULL if we have a legacy widevine source that
-    // is not yet ready. In this case we must not fetch input.
-    if (isDiscontinuityPending() || mRenderer == NULL) {
+    if (isDiscontinuityPending()) {
         return false;
     }
     status_t err = OK;
@@ -556,12 +576,49 @@
     notify->post();
 }
 
+status_t NuPlayer::Decoder::releaseCrypto()
+{
+    ALOGV("releaseCrypto");
+
+    sp<AMessage> msg = new AMessage(kWhatDrmReleaseCrypto, this);
+
+    sp<AMessage> response;
+    status_t status = msg->postAndAwaitResponse(&response);
+    if (status == OK && response != NULL) {
+        CHECK(response->findInt32("status", &status));
+        ALOGV("releaseCrypto ret: %d ", status);
+    } else {
+        ALOGE("releaseCrypto err: %d", status);
+    }
+
+    return status;
+}
+
+void NuPlayer::Decoder::onReleaseCrypto(const sp<AMessage>& msg)
+{
+    status_t status = INVALID_OPERATION;
+    if (mCodec != NULL) {
+        status = mCodec->releaseCrypto();
+    } else {
+        // returning OK if the codec has been already released
+        status = OK;
+        ALOGE("onReleaseCrypto No mCodec. err: %d", status);
+    }
+
+    sp<AMessage> response = new AMessage;
+    response->setInt32("status", status);
+
+    sp<AReplyToken> replyID;
+    CHECK(msg->senderAwaitsResponse(&replyID));
+    response->postReply(replyID);
+}
+
 bool NuPlayer::Decoder::handleAnInputBuffer(size_t index) {
     if (isDiscontinuityPending()) {
         return false;
     }
 
-    sp<ABuffer> buffer;
+    sp<MediaCodecBuffer> buffer;
     mCodec->getInputBuffer(index, &buffer);
 
     if (buffer == NULL) {
@@ -628,9 +685,14 @@
         int64_t timeUs,
         int32_t flags) {
 //    CHECK_LT(bufferIx, mOutputBuffers.size());
-    sp<ABuffer> buffer;
+    sp<MediaCodecBuffer> buffer;
     mCodec->getOutputBuffer(index, &buffer);
 
+    if (buffer == NULL) {
+        handleError(UNKNOWN_ERROR);
+        return false;
+    }
+
     if (index >= mOutputBuffers.size()) {
         for (size_t i = mOutputBuffers.size(); i <= index; ++i) {
             mOutputBuffers.add();
@@ -708,11 +770,10 @@
             flags = AUDIO_OUTPUT_FLAG_NONE;
         }
 
-        status_t err = mRenderer->openAudioSink(
-                format, false /* offloadOnly */, hasVideo, flags, NULL /* isOffloaed */);
-        if (err != OK) {
-            handleError(err);
-        }
+        sp<AMessage> reply = new AMessage(kWhatAudioOutputFormatChanged, this);
+        reply->setInt32("generation", mBufferGeneration);
+        mRenderer->changeAudioFormat(
+                format, false /* offloadOnly */, hasVideo, flags, reply);
     }
 }
 
@@ -865,43 +926,11 @@
     size_t bufferIx;
     CHECK(msg->findSize("buffer-ix", &bufferIx));
     CHECK_LT(bufferIx, mInputBuffers.size());
-    sp<ABuffer> codecBuffer = mInputBuffers[bufferIx];
+    sp<MediaCodecBuffer> codecBuffer = mInputBuffers[bufferIx];
 
     sp<ABuffer> buffer;
     bool hasBuffer = msg->findBuffer("buffer", &buffer);
-
-    // handle widevine classic source - that fills an arbitrary input buffer
-    MediaBuffer *mediaBuffer = NULL;
-    if (hasBuffer) {
-        mediaBuffer = (MediaBuffer *)(buffer->getMediaBufferBase());
-        if (mediaBuffer != NULL) {
-            // likely filled another buffer than we requested: adjust buffer index
-            size_t ix;
-            for (ix = 0; ix < mInputBuffers.size(); ix++) {
-                const sp<ABuffer> &buf = mInputBuffers[ix];
-                if (buf->data() == mediaBuffer->data()) {
-                    // all input buffers are dequeued on start, hence the check
-                    if (!mInputBufferIsDequeued[ix]) {
-                        ALOGV("[%s] received MediaBuffer for #%zu instead of #%zu",
-                                mComponentName.c_str(), ix, bufferIx);
-                        mediaBuffer->release();
-                        return false;
-                    }
-
-                    // TRICKY: need buffer for the metadata, so instead, set
-                    // codecBuffer to the same (though incorrect) buffer to
-                    // avoid a memcpy into the codecBuffer
-                    codecBuffer = buffer;
-                    codecBuffer->setRange(
-                            mediaBuffer->range_offset(),
-                            mediaBuffer->range_length());
-                    bufferIx = ix;
-                    break;
-                }
-            }
-            CHECK(ix < mInputBuffers.size());
-        }
-    }
+    bool needsCopy = true;
 
     if (buffer == NULL /* includes !hasBuffer */) {
         int32_t streamErr = ERROR_END_OF_STREAM;
@@ -954,38 +983,79 @@
             flags |= MediaCodec::BUFFER_FLAG_CODECCONFIG;
         }
 
+        // Modular DRM
+        MediaBuffer *mediaBuf = NULL;
+        NuPlayerDrm::CryptoInfo *cryptInfo = NULL;
+
         // copy into codec buffer
-        if (buffer != codecBuffer) {
+        if (needsCopy) {
             if (buffer->size() > codecBuffer->capacity()) {
                 handleError(ERROR_BUFFER_TOO_SMALL);
                 mDequeuedInputBuffers.push_back(bufferIx);
                 return false;
             }
-            codecBuffer->setRange(0, buffer->size());
-            memcpy(codecBuffer->data(), buffer->data(), buffer->size());
-        }
 
-        status_t err = mCodec->queueInputBuffer(
-                        bufferIx,
-                        codecBuffer->offset(),
-                        codecBuffer->size(),
-                        timeUs,
-                        flags);
+            if (buffer->data() != NULL) {
+                codecBuffer->setRange(0, buffer->size());
+                memcpy(codecBuffer->data(), buffer->data(), buffer->size());
+            } else { // No buffer->data()
+                //Modular DRM
+                mediaBuf = (MediaBuffer*)buffer->getMediaBufferBase();
+                if (mediaBuf != NULL) {
+                    codecBuffer->setRange(0, mediaBuf->size());
+                    memcpy(codecBuffer->data(), mediaBuf->data(), mediaBuf->size());
+
+                    sp<MetaData> meta_data = mediaBuf->meta_data();
+                    cryptInfo = NuPlayerDrm::getSampleCryptoInfo(meta_data);
+
+                    // since getMediaBuffer() has incremented the refCount
+                    mediaBuf->release();
+                } else { // No mediaBuf
+                    ALOGE("onInputBufferFetched: buffer->data()/mediaBuf are NULL for %p",
+                            buffer.get());
+                    handleError(UNKNOWN_ERROR);
+                    return false;
+                }
+            } // buffer->data()
+        } // needsCopy
+
+        status_t err;
+        AString errorDetailMsg;
+        if (cryptInfo != NULL) {
+            err = mCodec->queueSecureInputBuffer(
+                    bufferIx,
+                    codecBuffer->offset(),
+                    cryptInfo->subSamples,
+                    cryptInfo->numSubSamples,
+                    cryptInfo->key,
+                    cryptInfo->iv,
+                    cryptInfo->mode,
+                    cryptInfo->pattern,
+                    timeUs,
+                    flags,
+                    &errorDetailMsg);
+            // synchronous call so done with cryptInfo here
+            free(cryptInfo);
+        } else {
+            err = mCodec->queueInputBuffer(
+                    bufferIx,
+                    codecBuffer->offset(),
+                    codecBuffer->size(),
+                    timeUs,
+                    flags,
+                    &errorDetailMsg);
+        } // no cryptInfo
+
         if (err != OK) {
-            if (mediaBuffer != NULL) {
-                mediaBuffer->release();
-            }
-            ALOGE("Failed to queue input buffer for %s (err=%d)",
-                    mComponentName.c_str(), err);
+            ALOGE("onInputBufferFetched: queue%sInputBuffer failed for %s (err=%d, %s)",
+                    (cryptInfo != NULL ? "Secure" : ""),
+                    mComponentName.c_str(), err, errorDetailMsg.c_str());
             handleError(err);
         } else {
             mInputBufferIsDequeued.editItemAt(bufferIx) = false;
-            if (mediaBuffer != NULL) {
-                CHECK(mMediaBuffers[bufferIx] == NULL);
-                mMediaBuffers.editItemAt(bufferIx) = mediaBuffer;
-            }
         }
-    }
+
+    }   // buffer != NULL
     return true;
 }
 
@@ -998,7 +1068,7 @@
 
     if (!mIsAudio) {
         int64_t timeUs;
-        sp<ABuffer> buffer = mOutputBuffers[bufferIx];
+        sp<MediaCodecBuffer> buffer = mOutputBuffers[bufferIx];
         buffer->meta()->findInt64("timeUs", &timeUs);
 
         if (mCCDecoder != NULL && mCCDecoder->isSelected()) {
diff --git a/media/libmediaplayerservice/nuplayer/NuPlayerDecoder.h b/media/libmediaplayerservice/nuplayer/NuPlayerDecoder.h
index 0c619ed..de21379 100644
--- a/media/libmediaplayerservice/nuplayer/NuPlayerDecoder.h
+++ b/media/libmediaplayerservice/nuplayer/NuPlayerDecoder.h
@@ -23,10 +23,13 @@
 
 namespace android {
 
+class MediaCodecBuffer;
+
 struct NuPlayer::Decoder : public DecoderBase {
     Decoder(const sp<AMessage> &notify,
             const sp<Source> &source,
             pid_t pid,
+            uid_t uid,
             const sp<Renderer> &renderer = NULL,
             const sp<Surface> &surface = NULL,
             const sp<CCDecoder> &ccDecoder = NULL);
@@ -36,6 +39,8 @@
     // sets the output surface of video decoders.
     virtual status_t setVideoSurface(const sp<Surface> &surface);
 
+    virtual status_t releaseCrypto();
+
 protected:
     virtual ~Decoder();
 
@@ -44,7 +49,6 @@
     virtual void onConfigure(const sp<AMessage> &format);
     virtual void onSetParameters(const sp<AMessage> &params);
     virtual void onSetRenderer(const sp<Renderer> &renderer);
-    virtual void onGetInputBuffers(Vector<sp<ABuffer> > *dstBuffers);
     virtual void onResume(bool notifyComplete);
     virtual void onFlush();
     virtual void onShutdown(bool notifyComplete);
@@ -54,7 +58,9 @@
     enum {
         kWhatCodecNotify         = 'cdcN',
         kWhatRenderBuffer        = 'rndr',
-        kWhatSetVideoSurface     = 'sSur'
+        kWhatSetVideoSurface     = 'sSur',
+        kWhatAudioOutputFormatChanged = 'aofc',
+        kWhatDrmReleaseCrypto    = 'rDrm',
     };
 
     enum {
@@ -74,8 +80,8 @@
 
     List<sp<AMessage> > mPendingInputMessages;
 
-    Vector<sp<ABuffer> > mInputBuffers;
-    Vector<sp<ABuffer> > mOutputBuffers;
+    Vector<sp<MediaCodecBuffer> > mInputBuffers;
+    Vector<sp<MediaCodecBuffer> > mOutputBuffers;
     Vector<sp<ABuffer> > mCSDsForCurrentFormat;
     Vector<sp<ABuffer> > mCSDsToSubmit;
     Vector<bool> mInputBufferIsDequeued;
@@ -83,6 +89,7 @@
     Vector<size_t> mDequeuedInputBuffers;
 
     const pid_t mPid;
+    const uid_t mUid;
     int64_t mSkipRenderingUntilMediaTimeUs;
     int64_t mNumFramesTotal;
     int64_t mNumInputFramesDropped;
@@ -131,6 +138,8 @@
 
     void notifyResumeCompleteIfNecessary();
 
+    void onReleaseCrypto(const sp<AMessage>& msg);
+
     DISALLOW_EVIL_CONSTRUCTORS(Decoder);
 };
 
diff --git a/media/libmediaplayerservice/nuplayer/NuPlayerDecoderBase.cpp b/media/libmediaplayerservice/nuplayer/NuPlayerDecoderBase.cpp
index 04bb61c..1210dc9 100644
--- a/media/libmediaplayerservice/nuplayer/NuPlayerDecoderBase.cpp
+++ b/media/libmediaplayerservice/nuplayer/NuPlayerDecoderBase.cpp
@@ -23,6 +23,7 @@
 
 #include "NuPlayerRenderer.h"
 
+#include <media/MediaCodecBuffer.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/AMessage.h>
 
@@ -91,14 +92,6 @@
     PostAndAwaitResponse(msg, &response);
 }
 
-status_t NuPlayer::DecoderBase::getInputBuffers(Vector<sp<ABuffer> > *buffers) const {
-    sp<AMessage> msg = new AMessage(kWhatGetInputBuffers, this);
-    msg->setPointer("buffers", buffers);
-
-    sp<AMessage> response;
-    return PostAndAwaitResponse(msg, &response);
-}
-
 void NuPlayer::DecoderBase::signalFlush() {
     (new AMessage(kWhatFlush, this))->post();
 }
@@ -165,20 +158,6 @@
             break;
         }
 
-        case kWhatGetInputBuffers:
-        {
-            sp<AReplyToken> replyID;
-            CHECK(msg->senderAwaitsResponse(&replyID));
-
-            Vector<sp<ABuffer> > *dstBuffers;
-            CHECK(msg->findPointer("buffers", (void **)&dstBuffers));
-
-            onGetInputBuffers(dstBuffers);
-
-            (new AMessage)->postReply(replyID);
-            break;
-        }
-
         case kWhatRequestInputBuffers:
         {
             mRequestInputBuffersPending = false;
diff --git a/media/libmediaplayerservice/nuplayer/NuPlayerDecoderBase.h b/media/libmediaplayerservice/nuplayer/NuPlayerDecoderBase.h
index 9966144..dcdfcaf 100644
--- a/media/libmediaplayerservice/nuplayer/NuPlayerDecoderBase.h
+++ b/media/libmediaplayerservice/nuplayer/NuPlayerDecoderBase.h
@@ -27,6 +27,7 @@
 struct ABuffer;
 struct MediaCodec;
 class MediaBuffer;
+class MediaCodecBuffer;
 class Surface;
 
 struct NuPlayer::DecoderBase : public AHandler {
@@ -42,7 +43,6 @@
     void setRenderer(const sp<Renderer> &renderer);
     virtual status_t setVideoSurface(const sp<Surface> &) { return INVALID_OPERATION; }
 
-    status_t getInputBuffers(Vector<sp<ABuffer> > *dstBuffers) const;
     void signalFlush();
     void signalResume(bool notifyComplete);
     void initiateShutdown();
@@ -51,6 +51,10 @@
         return mStats;
     }
 
+    virtual status_t releaseCrypto() {
+        return INVALID_OPERATION;
+    }
+
     enum {
         kWhatInputDiscontinuity  = 'inDi',
         kWhatVideoSizeChanged    = 'viSC',
@@ -70,7 +74,6 @@
     virtual void onConfigure(const sp<AMessage> &format) = 0;
     virtual void onSetParameters(const sp<AMessage> &params) = 0;
     virtual void onSetRenderer(const sp<Renderer> &renderer) = 0;
-    virtual void onGetInputBuffers(Vector<sp<ABuffer> > *dstBuffers) = 0;
     virtual void onResume(bool notifyComplete) = 0;
     virtual void onFlush() = 0;
     virtual void onShutdown(bool notifyComplete) = 0;
@@ -90,7 +93,6 @@
         kWhatSetParameters       = 'setP',
         kWhatSetRenderer         = 'setR',
         kWhatPause               = 'paus',
-        kWhatGetInputBuffers     = 'gInB',
         kWhatRequestInputBuffers = 'reqB',
         kWhatFlush               = 'flus',
         kWhatShutdown            = 'shuD',
diff --git a/media/libmediaplayerservice/nuplayer/NuPlayerDecoderPassThrough.cpp b/media/libmediaplayerservice/nuplayer/NuPlayerDecoderPassThrough.cpp
index f224635..cb668e4 100644
--- a/media/libmediaplayerservice/nuplayer/NuPlayerDecoderPassThrough.cpp
+++ b/media/libmediaplayerservice/nuplayer/NuPlayerDecoderPassThrough.cpp
@@ -25,6 +25,7 @@
 #include "NuPlayerSource.h"
 
 #include <media/ICrypto.h>
+#include <media/MediaCodecBuffer.h>
 #include <media/stagefright/foundation/ABuffer.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/AMessage.h>
@@ -92,11 +93,6 @@
             "ignoring request to change renderer");
 }
 
-void NuPlayer::DecoderPassThrough::onGetInputBuffers(
-        Vector<sp<ABuffer> > * /* dstBuffers */) {
-    ALOGE("onGetInputBuffers() called unexpectedly");
-}
-
 bool NuPlayer::DecoderPassThrough::isStaleReply(const sp<AMessage> &msg) {
     int32_t generation;
     CHECK(msg->findInt32("generation", &generation));
@@ -319,10 +315,9 @@
     int32_t bufferSize = buffer->size();
     mCachedBytes += bufferSize;
 
+    int64_t timeUs = 0;
+    CHECK(buffer->meta()->findInt64("timeUs", &timeUs));
     if (mSkipRenderingUntilMediaTimeUs >= 0) {
-        int64_t timeUs = 0;
-        CHECK(buffer->meta()->findInt64("timeUs", &timeUs));
-
         if (timeUs < mSkipRenderingUntilMediaTimeUs) {
             ALOGV("[%s] dropping buffer at time %lld as requested.",
                      mComponentName.c_str(), (long long)timeUs);
@@ -343,7 +338,10 @@
     reply->setInt32("generation", mBufferGeneration);
     reply->setInt32("size", bufferSize);
 
-    mRenderer->queueBuffer(true /* audio */, buffer, reply);
+    sp<MediaCodecBuffer> mcBuffer = new MediaCodecBuffer(nullptr, buffer);
+    mcBuffer->meta()->setInt64("timeUs", timeUs);
+
+    mRenderer->queueBuffer(true /* audio */, mcBuffer, reply);
 
     ++mPendingBuffersToDrain;
     ALOGV("onInputBufferFilled: #ToDrain = %zu, cachedBytes = %zu",
diff --git a/media/libmediaplayerservice/nuplayer/NuPlayerDecoderPassThrough.h b/media/libmediaplayerservice/nuplayer/NuPlayerDecoderPassThrough.h
index 5850efa..173387a 100644
--- a/media/libmediaplayerservice/nuplayer/NuPlayerDecoderPassThrough.h
+++ b/media/libmediaplayerservice/nuplayer/NuPlayerDecoderPassThrough.h
@@ -38,7 +38,6 @@
     virtual void onConfigure(const sp<AMessage> &format);
     virtual void onSetParameters(const sp<AMessage> &params);
     virtual void onSetRenderer(const sp<Renderer> &renderer);
-    virtual void onGetInputBuffers(Vector<sp<ABuffer> > *dstBuffers);
     virtual void onResume(bool notifyComplete);
     virtual void onFlush();
     virtual void onShutdown(bool notifyComplete);
diff --git a/media/libmediaplayerservice/nuplayer/NuPlayerDriver.cpp b/media/libmediaplayerservice/nuplayer/NuPlayerDriver.cpp
index 0f4dce9..19c4d85 100644
--- a/media/libmediaplayerservice/nuplayer/NuPlayerDriver.cpp
+++ b/media/libmediaplayerservice/nuplayer/NuPlayerDriver.cpp
@@ -31,8 +31,14 @@
 #include <media/stagefright/MetaData.h>
 #include <media/stagefright/Utils.h>
 
+#include <media/IMediaAnalyticsService.h>
+
+static const int kDumpLockRetries = 50;
+static const int kDumpLockSleepUs = 20000;
+
 namespace android {
 
+
 NuPlayerDriver::NuPlayerDriver(pid_t pid)
     : mState(STATE_IDLE),
       mIsAsyncPrepare(false),
@@ -41,20 +47,26 @@
       mDurationUs(-1),
       mPositionUs(-1),
       mSeekInProgress(false),
+      mPlayingTimeUs(0),
       mLooper(new ALooper),
+      mPlayer(new NuPlayer(pid)),
       mPlayerFlags(0),
+      mAnalyticsItem(NULL),
       mAtEOS(false),
       mLooping(false),
       mAutoLoop(false) {
-    ALOGV("NuPlayerDriver(%p)", this);
+    ALOGD("NuPlayerDriver(%p) created, clientPid(%d)", this, pid);
     mLooper->setName("NuPlayerDriver Looper");
 
+    // set up an analytics record
+    mAnalyticsItem = new MediaAnalyticsItem("nuplayer");
+    mAnalyticsItem->generateSessionID();
+
     mLooper->start(
             false, /* runOnCallingThread */
             true,  /* canCallJava */
             PRIORITY_AUDIO);
 
-    mPlayer = new NuPlayer(pid);
     mLooper->registerHandler(mPlayer);
 
     mPlayer->setDriver(this);
@@ -63,6 +75,15 @@
 NuPlayerDriver::~NuPlayerDriver() {
     ALOGV("~NuPlayerDriver(%p)", this);
     mLooper->stop();
+
+    // finalize any pending metrics, usually a no-op.
+    finalizeMetrics("destructor");
+    logMetrics("destructor");
+
+    if (mAnalyticsItem != NULL) {
+        delete mAnalyticsItem;
+        mAnalyticsItem = NULL;
+    }
 }
 
 status_t NuPlayerDriver::initCheck() {
@@ -183,6 +204,30 @@
     return OK;
 }
 
+status_t NuPlayerDriver::getDefaultBufferingSettings(BufferingSettings* buffering) {
+    ALOGV("getDefaultBufferingSettings(%p)", this);
+    {
+        Mutex::Autolock autoLock(mLock);
+        if (mState == STATE_IDLE) {
+            return INVALID_OPERATION;
+        }
+    }
+
+    return mPlayer->getDefaultBufferingSettings(buffering);
+}
+
+status_t NuPlayerDriver::setBufferingSettings(const BufferingSettings& buffering) {
+    ALOGV("setBufferingSettings(%p)", this);
+    {
+        Mutex::Autolock autoLock(mLock);
+        if (mState == STATE_IDLE) {
+            return INVALID_OPERATION;
+        }
+    }
+
+    return mPlayer->setBufferingSettings(buffering);
+}
+
 status_t NuPlayerDriver::prepare() {
     ALOGV("prepare(%p)", this);
     Mutex::Autolock autoLock(mLock);
@@ -208,7 +253,8 @@
             mAtEOS = false;
             mState = STATE_STOPPED_AND_PREPARING;
             mIsAsyncPrepare = false;
-            mPlayer->seekToAsync(0, true /* needNotify */);
+            mPlayer->seekToAsync(0, MediaPlayerSeekMode::SEEK_PREVIOUS_SYNC /* mode */,
+                    true /* needNotify */);
             while (mState == STATE_STOPPED_AND_PREPARING) {
                 mCondition.wait(mLock);
             }
@@ -233,7 +279,8 @@
             mAtEOS = false;
             mState = STATE_STOPPED_AND_PREPARING;
             mIsAsyncPrepare = true;
-            mPlayer->seekToAsync(0, true /* needNotify */);
+            mPlayer->seekToAsync(0, MediaPlayerSeekMode::SEEK_PREVIOUS_SYNC /* mode */,
+                    true /* needNotify */);
             return OK;
         default:
             return INVALID_OPERATION;
@@ -382,8 +429,8 @@
     return mPlayer->getSyncSettings(sync, videoFps);
 }
 
-status_t NuPlayerDriver::seekTo(int msec) {
-    ALOGD("seekTo(%p) %d ms at state %d", this, msec, mState);
+status_t NuPlayerDriver::seekTo(int msec, MediaPlayerSeekMode mode) {
+    ALOGD("seekTo(%p) (%d ms, %d) at state %d", this, msec, mode, mState);
     Mutex::Autolock autoLock(mLock);
 
     int64_t seekTimeUs = msec * 1000ll;
@@ -398,7 +445,7 @@
             mSeekInProgress = true;
             // seeks can take a while, so we essentially paused
             notifyListener_l(MEDIA_PAUSED);
-            mPlayer->seekToAsync(seekTimeUs, true /* needNotify */);
+            mPlayer->seekToAsync(seekTimeUs, mode, true /* needNotify */);
             break;
         }
 
@@ -448,8 +495,103 @@
     return OK;
 }
 
+void NuPlayerDriver::finalizeMetrics(const char *where) {
+    if (where == NULL) {
+        where = "unknown";
+    }
+    ALOGD("finalizeMetrics(%p) from %s at state %d", this, where, mState);
+
+    // gather the final stats for this record
+    Vector<sp<AMessage>> trackStats;
+    mPlayer->getStats(&trackStats);
+
+    if (trackStats.size() > 0) {
+        for (size_t i = 0; i < trackStats.size(); ++i) {
+            const sp<AMessage> &stats = trackStats.itemAt(i);
+
+            AString mime;
+            stats->findString("mime", &mime);
+
+            AString name;
+            stats->findString("component-name", &name);
+
+            if (mime.startsWith("video/")) {
+                int32_t width, height;
+                mAnalyticsItem->setCString("video/mime", mime.c_str());
+                if (!name.empty()) {
+                    mAnalyticsItem->setCString("video/codec", name.c_str());
+                }
+
+                if (stats->findInt32("width", &width)
+                        && stats->findInt32("height", &height)) {
+                    mAnalyticsItem->setInt32("wid", width);
+                    mAnalyticsItem->setInt32("ht", height);
+                }
+
+                int64_t numFramesTotal = 0;
+                int64_t numFramesDropped = 0;
+                stats->findInt64("frames-total", &numFramesTotal);
+                stats->findInt64("frames-dropped-output", &numFramesDropped);
+
+                mAnalyticsItem->setInt64("frames", numFramesTotal);
+                mAnalyticsItem->setInt64("dropped", numFramesDropped);
+
+
+            } else if (mime.startsWith("audio/")) {
+                mAnalyticsItem->setCString("audio/mime", mime.c_str());
+                if (!name.empty()) {
+                    mAnalyticsItem->setCString("audio/codec", name.c_str());
+                }
+            }
+        }
+
+        // getDuration() uses mLock for mutex -- careful where we use it.
+        int duration_ms = -1;
+        getDuration(&duration_ms);
+        if (duration_ms != -1) {
+            mAnalyticsItem->setInt64("duration", duration_ms);
+        }
+
+        if (mPlayingTimeUs > 0) {
+            mAnalyticsItem->setInt64("playing", (mPlayingTimeUs+500)/1000 );
+        }
+    }
+}
+
+
+void NuPlayerDriver::logMetrics(const char *where) {
+    if (where == NULL) {
+        where = "unknown";
+    }
+    ALOGD("logMetrics(%p) from %s at state %d", this, where, mState);
+
+    if (mAnalyticsItem == NULL || mAnalyticsItem->isEnabled() == false) {
+        return;
+    }
+
+    // only bother to log non-empty records
+    if (mAnalyticsItem->count() > 0) {
+
+        mAnalyticsItem->setFinalized(true);
+        mAnalyticsItem->selfrecord();
+
+        // re-init in case we prepare() and start() again.
+        delete mAnalyticsItem ;
+        mAnalyticsItem = new MediaAnalyticsItem("nuplayer");
+        if (mAnalyticsItem) {
+            mAnalyticsItem->generateSessionID();
+        }
+    } else {
+        ALOGV("did not have anything to record");
+    }
+}
+
 status_t NuPlayerDriver::reset() {
     ALOGD("reset(%p) at state %d", this, mState);
+
+    finalizeMetrics("reset");
+    logMetrics("reset");
+
     Mutex::Autolock autoLock(mLock);
 
     switch (mState) {
@@ -476,9 +618,7 @@
         notifyListener_l(MEDIA_STOPPED);
     }
 
-    char value[PROPERTY_VALUE_MAX];
-    if (property_get("persist.debug.sf.stats", value, NULL) &&
-            (!strcmp("1", value) || !strcasecmp("true", value))) {
+    if (property_get_bool("persist.debug.sf.stats", false)) {
         Vector<String16> args;
         dump(-1, args);
     }
@@ -493,6 +633,7 @@
     mDurationUs = -1;
     mPositionUs = -1;
     mLooping = false;
+    mPlayingTimeUs = 0;
 
     return OK;
 }
@@ -569,7 +710,16 @@
     return INVALID_OPERATION;
 }
 
-status_t NuPlayerDriver::getParameter(int /* key */, Parcel * /* reply */) {
+status_t NuPlayerDriver::getParameter(int key, Parcel *reply) {
+
+    if (key == FOURCC('m','t','r','X')) {
+        // mtrX -- a play on 'metrics' (not matrix)
+        // gather current info all together, parcel it, and send it back
+        finalizeMetrics("api");
+        mAnalyticsItem->writeToParcel(reply);
+        return OK;
+    }
+
     return INVALID_OPERATION;
 }
 
@@ -624,6 +774,11 @@
     mDurationUs = durationUs;
 }
 
+void NuPlayerDriver::notifyMorePlayingTimeUs(int64_t playingUs) {
+    Mutex::Autolock autoLock(mLock);
+    mPlayingTimeUs += playingUs;
+}
+
 void NuPlayerDriver::notifySeekComplete() {
     ALOGV("notifySeekComplete(%p)", this);
     Mutex::Autolock autoLock(mLock);
@@ -657,6 +812,24 @@
     AString logString(" NuPlayer\n");
     char buf[256] = {0};
 
+    bool locked = false;
+    for (int i = 0; i < kDumpLockRetries; ++i) {
+        if (mLock.tryLock() == NO_ERROR) {
+            locked = true;
+            break;
+        }
+        usleep(kDumpLockSleepUs);
+    }
+
+    if (locked) {
+        snprintf(buf, sizeof(buf), "  state(%d), atEOS(%d), looping(%d), autoLoop(%d)\n",
+                mState, mAtEOS, mLooping, mAutoLoop);
+        mLock.unlock();
+    } else {
+        snprintf(buf, sizeof(buf), "  NPD(%p) lock is taken\n", this);
+    }
+    logString.append(buf);
+
     for (size_t i = 0; i < trackStats.size(); ++i) {
         const sp<AMessage> &stats = trackStats.itemAt(i);
 
@@ -715,8 +888,8 @@
 
 void NuPlayerDriver::notifyListener_l(
         int msg, int ext1, int ext2, const Parcel *in) {
-    ALOGD("notifyListener_l(%p), (%d, %d, %d), loop setting(%d, %d)",
-            this, msg, ext1, ext2, mAutoLoop, mLooping);
+    ALOGD("notifyListener_l(%p), (%d, %d, %d, %d), loop setting(%d, %d)",
+            this, msg, ext1, ext2, (in == NULL ? -1 : (int)in->dataSize()), mAutoLoop, mLooping);
     switch (msg) {
         case MEDIA_PLAYBACK_COMPLETE:
         {
@@ -774,6 +947,8 @@
 }
 
 void NuPlayerDriver::notifyPrepareCompleted(status_t err) {
+    ALOGV("notifyPrepareCompleted %d", err);
+
     Mutex::Autolock autoLock(mLock);
 
     if (mState != STATE_PREPARING) {
@@ -818,4 +993,29 @@
     mPlayerFlags = flags;
 }
 
+// Modular DRM
+status_t NuPlayerDriver::prepareDrm(const uint8_t uuid[16], const Vector<uint8_t> &drmSessionId)
+{
+    ALOGV("prepareDrm(%p) state: %d", this, mState);
+
+    // leaving the state verification for mediaplayer.cpp
+    status_t ret = mPlayer->prepareDrm(uuid, drmSessionId);
+
+    ALOGV("prepareDrm ret: %d", ret);
+
+    return ret;
+}
+
+status_t NuPlayerDriver::releaseDrm()
+{
+    ALOGV("releaseDrm(%p) state: %d", this, mState);
+
+    // leaving the state verification for mediaplayer.cpp
+    status_t ret = mPlayer->releaseDrm();
+
+    ALOGV("releaseDrm ret: %d", ret);
+
+    return ret;
+}
+
 }  // namespace android
diff --git a/media/libmediaplayerservice/nuplayer/NuPlayerDriver.h b/media/libmediaplayerservice/nuplayer/NuPlayerDriver.h
index 58008f0..082f71a 100644
--- a/media/libmediaplayerservice/nuplayer/NuPlayerDriver.h
+++ b/media/libmediaplayerservice/nuplayer/NuPlayerDriver.h
@@ -16,6 +16,7 @@
 
 #include <media/MediaPlayerInterface.h>
 
+#include <media/MediaAnalyticsItem.h>
 #include <media/stagefright/foundation/ABase.h>
 
 namespace android {
@@ -43,6 +44,11 @@
 
     virtual status_t setVideoSurfaceTexture(
             const sp<IGraphicBufferProducer> &bufferProducer);
+
+    virtual status_t getDefaultBufferingSettings(
+            BufferingSettings* buffering /* nonnull */) override;
+    virtual status_t setBufferingSettings(const BufferingSettings& buffering) override;
+
     virtual status_t prepare();
     virtual status_t prepareAsync();
     virtual status_t start();
@@ -53,7 +59,8 @@
     virtual status_t getPlaybackSettings(AudioPlaybackRate *rate);
     virtual status_t setSyncSettings(const AVSyncSettings &sync, float videoFpsHint);
     virtual status_t getSyncSettings(AVSyncSettings *sync, float *videoFps);
-    virtual status_t seekTo(int msec);
+    virtual status_t seekTo(
+            int msec, MediaPlayerSeekMode mode = MediaPlayerSeekMode::SEEK_PREVIOUS_SYNC);
     virtual status_t getCurrentPosition(int *msec);
     virtual status_t getDuration(int *msec);
     virtual status_t reset();
@@ -74,11 +81,16 @@
     void notifyResetComplete();
     void notifySetSurfaceComplete();
     void notifyDuration(int64_t durationUs);
+    void notifyMorePlayingTimeUs(int64_t timeUs);
     void notifySeekComplete();
     void notifySeekComplete_l();
     void notifyListener(int msg, int ext1 = 0, int ext2 = 0, const Parcel *in = NULL);
     void notifyFlagsChanged(uint32_t flags);
 
+    // Modular DRM
+    virtual status_t prepareDrm(const uint8_t uuid[16], const Vector<uint8_t> &drmSessionId);
+    virtual status_t releaseDrm();
+
 protected:
     virtual ~NuPlayerDriver();
 
@@ -111,17 +123,23 @@
     int64_t mDurationUs;
     int64_t mPositionUs;
     bool mSeekInProgress;
+    int64_t mPlayingTimeUs;
     // <<<
 
     sp<ALooper> mLooper;
-    sp<NuPlayer> mPlayer;
+    const sp<NuPlayer> mPlayer;
     sp<AudioSink> mAudioSink;
     uint32_t mPlayerFlags;
 
+    MediaAnalyticsItem *mAnalyticsItem;
+
     bool mAtEOS;
     bool mLooping;
     bool mAutoLoop;
 
+    void finalizeMetrics(const char *where);
+    void logMetrics(const char *where);
+
     status_t prepare_l();
     status_t start_l();
     void notifyListener_l(int msg, int ext1 = 0, int ext2 = 0, const Parcel *in = NULL);
diff --git a/media/libmediaplayerservice/nuplayer/NuPlayerDrm.cpp b/media/libmediaplayerservice/nuplayer/NuPlayerDrm.cpp
new file mode 100644
index 0000000..ce6cedc
--- /dev/null
+++ b/media/libmediaplayerservice/nuplayer/NuPlayerDrm.cpp
@@ -0,0 +1,366 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "NuPlayerDrm"
+
+#include "NuPlayerDrm.h"
+
+#include <binder/IServiceManager.h>
+#include <media/IMediaDrmService.h>
+#include <utils/Log.h>
+
+
+namespace android {
+
+// static helpers - internal
+
+sp<IDrm> NuPlayerDrm::CreateDrm(status_t *pstatus)
+{
+    status_t &status = *pstatus;
+    sp<IServiceManager> sm = defaultServiceManager();
+    sp<IBinder> binder = sm->getService(String16("media.drm"));
+    ALOGV("CreateDrm binder %p", (binder != NULL ? binder.get() : 0));
+
+    sp<IMediaDrmService> service = interface_cast<IMediaDrmService>(binder);
+    if (service == NULL) {
+        ALOGE("CreateDrm failed at IMediaDrmService");
+        return NULL;
+    }
+
+    sp<IDrm> drm = service->makeDrm();
+    if (drm == NULL) {
+        ALOGE("CreateDrm failed at makeDrm");
+        return NULL;
+    }
+
+    // this is before plugin creation so NO_INIT is fine
+    status = drm->initCheck();
+    if (status != OK && status != NO_INIT) {
+        ALOGE("CreateDrm failed drm->initCheck(): %d", status);
+        return NULL;
+    }
+    return drm;
+}
+
+sp<ICrypto> NuPlayerDrm::createCrypto(status_t *pstatus)
+{
+    status_t &status = *pstatus;
+    sp<IServiceManager> sm = defaultServiceManager();
+    sp<IBinder> binder = sm->getService(String16("media.drm"));
+
+    sp<IMediaDrmService> service = interface_cast<IMediaDrmService>(binder);
+    if (service == NULL) {
+        status = UNKNOWN_ERROR;
+        ALOGE("CreateCrypto failed at IMediaDrmService");
+        return NULL;
+    }
+
+    sp<ICrypto> crypto = service->makeCrypto();
+    if (crypto == NULL) {
+        status = UNKNOWN_ERROR;
+        ALOGE("createCrypto failed");
+        return NULL;
+    }
+
+    // this is before plugin creation so NO_INIT is fine
+    status = crypto->initCheck();
+    if (status != OK && status != NO_INIT) {
+        ALOGE("createCrypto failed crypto->initCheck(): %d", status);
+        return NULL;
+    }
+
+    return crypto;
+}
+
+Vector<DrmUUID> NuPlayerDrm::parsePSSH(const void *pssh, size_t psshsize)
+{
+    Vector<DrmUUID> drmSchemes, empty;
+    const int DATALEN_SIZE = 4;
+
+    // the format of the buffer is 1 or more of:
+    //    {
+    //        16 byte uuid
+    //        4 byte data length N
+    //        N bytes of data
+    //    }
+    // Determine the number of entries in the source data.
+    // Since we got the data from stagefright, we trust it is valid and properly formatted.
+
+    const uint8_t *data = (const uint8_t*)pssh;
+    size_t len = psshsize;
+    size_t numentries = 0;
+    while (len > 0) {
+        if (len < DrmUUID::UUID_SIZE) {
+            ALOGE("ParsePSSH: invalid PSSH data");
+            return empty;
+        }
+
+        const uint8_t *uuidPtr = data;
+
+        // skip uuid
+        data += DrmUUID::UUID_SIZE;
+        len -= DrmUUID::UUID_SIZE;
+
+        // get data length
+        if (len < DATALEN_SIZE) {
+            ALOGE("ParsePSSH: invalid PSSH data");
+            return empty;
+        }
+
+        uint32_t datalen = *((uint32_t*)data);
+        data += DATALEN_SIZE;
+        len -= DATALEN_SIZE;
+
+        if (len < datalen) {
+            ALOGE("ParsePSSH: invalid PSSH data");
+            return empty;
+        }
+
+        // skip the data
+        data += datalen;
+        len -= datalen;
+
+        DrmUUID _uuid(uuidPtr);
+        drmSchemes.add(_uuid);
+
+        ALOGV("ParsePSSH[%zu]: %s: %s", numentries,
+                _uuid.toHexString().string(),
+                DrmUUID::arrayToHex(data, datalen).string()
+             );
+
+        numentries++;
+    }
+
+    return drmSchemes;
+}
+
+Vector<DrmUUID> NuPlayerDrm::getSupportedDrmSchemes(const void *pssh, size_t psshsize)
+{
+    Vector<DrmUUID> psshDRMs = parsePSSH(pssh, psshsize);
+
+    Vector<DrmUUID> supportedDRMs;
+     // temporary DRM object for crypto Scheme enquiry (without creating a plugin)
+    status_t status = OK;
+    sp<IDrm> drm = CreateDrm(&status);
+    if (drm != NULL) {
+        for (size_t i = 0; i < psshDRMs.size(); i++) {
+            DrmUUID uuid = psshDRMs[i];
+            if (drm->isCryptoSchemeSupported(uuid.ptr(), String8()))
+                supportedDRMs.add(uuid);
+        }
+
+        drm.clear();
+    } else {
+        ALOGE("getSupportedDrmSchemes: Can't create Drm obj: %d", status);
+    }
+
+    ALOGV("getSupportedDrmSchemes: psshDRMs: %zu supportedDRMs: %zu",
+            psshDRMs.size(), supportedDRMs.size());
+
+    return supportedDRMs;
+}
+
+// static helpers - public
+
+sp<ICrypto> NuPlayerDrm::createCryptoAndPlugin(const uint8_t uuid[16],
+        const Vector<uint8_t> &drmSessionId, status_t &status)
+{
+    // Extra check
+    if (drmSessionId.isEmpty()) {
+        status = INVALID_OPERATION;
+        ALOGE("createCryptoAndPlugin: Failed. Empty drmSessionId. status: %d", status);
+        return NULL;
+    }
+
+    status = OK;
+    sp<ICrypto> crypto = createCrypto(&status);
+    if (crypto == NULL) {
+        ALOGE("createCryptoAndPlugin: createCrypto failed. status: %d", status);
+        return NULL;
+    }
+    ALOGV("createCryptoAndPlugin: createCrypto succeeded");
+
+    status = crypto->createPlugin(uuid, drmSessionId.array(), drmSessionId.size());
+    if (status != OK) {
+        ALOGE("createCryptoAndPlugin: createCryptoPlugin failed. status: %d", status);
+        // crypto will clean itself when leaving the current scope
+        return NULL;
+    }
+
+    return crypto;
+}
+
+// Parcel has only private copy constructor so passing it in rather than returning
+void NuPlayerDrm::retrieveDrmInfo(const void *pssh, size_t psshsize,
+        const Vector<String8> &mimes_in, Parcel *parcel)
+{
+    // 0) Make mimes a vector of unique items while keeping the original order; video first
+    Vector<String8> mimes;
+    for (size_t j = 0; j < mimes_in.size(); j++) {
+        String8 mime = mimes_in[j];
+        bool exists = false;
+        for (size_t i = 0; i < mimes.size() && !exists; i++) {
+            if (mimes[i] == mime) {
+                exists = true;
+            }
+        } // for i
+
+        if (!exists) {
+            mimes.add(mime);
+        }
+    } // for j
+
+
+    // 1) PSSH bytes
+    parcel->writeUint32(psshsize);
+    parcel->writeByteArray(psshsize, (const uint8_t*)pssh);
+
+    ALOGV("retrieveDrmInfo: MEDIA_DRM_INFO  PSSH: size: %zu %s", psshsize,
+            DrmUUID::arrayToHex((uint8_t*)pssh, psshsize).string());
+
+    // 2) supportedDRMs
+    Vector<DrmUUID> supportedDRMs = getSupportedDrmSchemes(pssh, psshsize);
+    parcel->writeUint32(supportedDRMs.size());
+    for (size_t i = 0; i < supportedDRMs.size(); i++) {
+        DrmUUID uuid = supportedDRMs[i];
+        parcel->writeByteArray(DrmUUID::UUID_SIZE, uuid.ptr());
+
+        ALOGV("retrieveDrmInfo: MEDIA_DRM_INFO  supportedScheme[%zu] %s", i,
+                uuid.toHexString().string());
+    }
+
+    // TODO: remove mimes after it's removed from Java DrmInfo
+    // 3) mimes
+    parcel->writeUint32(mimes.size());
+    for (size_t i = 0; i < mimes.size(); i++) {
+        // writing as String16 so the Java framework side can unpack it to Java String
+        String16 mime(mimes[i]);
+        parcel->writeString16(mime);
+
+        ALOGV("retrieveDrmInfo: MEDIA_DRM_INFO  MIME[%zu] %s",
+                i, mimes[i].string());
+    }
+}
+
+////////////////////////////////////////////////////////////////////////////////////////////
+/// Helpers for NuPlayerDecoder
+////////////////////////////////////////////////////////////////////////////////////////////
+
+NuPlayerDrm::CryptoInfo *NuPlayerDrm::makeCryptoInfo(
+        int numSubSamples,
+        uint8_t key[kBlockSize],
+        uint8_t iv[kBlockSize],
+        CryptoPlugin::Mode mode,
+        size_t *clearbytes,
+        size_t *encryptedbytes)
+{
+    // size needed to store all the crypto data
+    size_t cryptosize = sizeof(CryptoInfo) +
+                        sizeof(CryptoPlugin::SubSample) * numSubSamples;
+    CryptoInfo *ret = (CryptoInfo*) malloc(cryptosize);
+    if (ret == NULL) {
+        ALOGE("couldn't allocate %zu bytes", cryptosize);
+        return NULL;
+    }
+    ret->numSubSamples = numSubSamples;
+    memcpy(ret->key, key, kBlockSize);
+    memcpy(ret->iv, iv, kBlockSize);
+    ret->mode = mode;
+    ret->pattern.mEncryptBlocks = 0;
+    ret->pattern.mSkipBlocks = 0;
+    ret->subSamples = (CryptoPlugin::SubSample*)(ret + 1);
+    CryptoPlugin::SubSample *subSamples = ret->subSamples;
+
+    for (int i = 0; i < numSubSamples; i++) {
+        subSamples[i].mNumBytesOfClearData = (clearbytes == NULL) ? 0 : clearbytes[i];
+        subSamples[i].mNumBytesOfEncryptedData = (encryptedbytes == NULL) ?
+                                                  0 :
+                                                  encryptedbytes[i];
+    }
+
+    return ret;
+}
+
+NuPlayerDrm::CryptoInfo *NuPlayerDrm::getSampleCryptoInfo(sp<MetaData> meta)
+{
+    uint32_t type;
+    const void *crypteddata;
+    size_t cryptedsize;
+
+    if (meta == NULL) {
+        ALOGE("getSampleCryptoInfo: Unexpected. No meta data for sample.");
+        return NULL;
+    }
+
+    if (!meta->findData(kKeyEncryptedSizes, &type, &crypteddata, &cryptedsize)) {
+        return NULL;
+    }
+    size_t numSubSamples = cryptedsize / sizeof(size_t);
+
+    if (numSubSamples <= 0) {
+        ALOGE("getSampleCryptoInfo INVALID numSubSamples: %zu", numSubSamples);
+        return NULL;
+    }
+
+    const void *cleardata;
+    size_t clearsize;
+    if (meta->findData(kKeyPlainSizes, &type, &cleardata, &clearsize)) {
+        if (clearsize != cryptedsize) {
+            // The two must be of the same length.
+            ALOGE("getSampleCryptoInfo mismatch cryptedsize: %zu != clearsize: %zu",
+                    cryptedsize, clearsize);
+            return NULL;
+        }
+    }
+
+    const void *key;
+    size_t keysize;
+    if (meta->findData(kKeyCryptoKey, &type, &key, &keysize)) {
+        if (keysize != kBlockSize) {
+            ALOGE("getSampleCryptoInfo Keys must be %d bytes in length: %zu",
+                    kBlockSize, keysize);
+            // Keys must be 16 bytes in length.
+            return NULL;
+        }
+    }
+
+    const void *iv;
+    size_t ivsize;
+    if (meta->findData(kKeyCryptoIV, &type, &iv, &ivsize)) {
+        if (ivsize != kBlockSize) {
+            ALOGE("getSampleCryptoInfo IV must be %d bytes in length: %zu",
+                    kBlockSize, ivsize);
+            // IVs must be 16 bytes in length.
+            return NULL;
+        }
+    }
+
+    int32_t mode;
+    if (!meta->findInt32(kKeyCryptoMode, &mode)) {
+        mode = CryptoPlugin::kMode_AES_CTR;
+    }
+
+    return makeCryptoInfo(numSubSamples,
+            (uint8_t*) key,
+            (uint8_t*) iv,
+            (CryptoPlugin::Mode)mode,
+            (size_t*) cleardata,
+            (size_t*) crypteddata);
+}
+
+}   // namespace android
+
diff --git a/media/libmediaplayerservice/nuplayer/NuPlayerDrm.h b/media/libmediaplayerservice/nuplayer/NuPlayerDrm.h
new file mode 100644
index 0000000..6704bd1
--- /dev/null
+++ b/media/libmediaplayerservice/nuplayer/NuPlayerDrm.h
@@ -0,0 +1,119 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef NUPLAYER_DRM_H_
+#define NUPLAYER_DRM_H_
+
+#include <binder/Parcel.h>
+#include <media/ICrypto.h>
+#include <media/IDrm.h>
+#include <media/stagefright/MetaData.h> // for CryptInfo
+
+
+namespace android {
+
+    struct DrmUUID {
+        static const int UUID_SIZE = 16;
+
+        DrmUUID() {
+            memset(this->uuid, 0, sizeof(uuid));
+        }
+
+        // to allow defining Vector/KeyedVector of UUID type
+        DrmUUID(const DrmUUID &a) {
+            memcpy(this->uuid, a.uuid, sizeof(uuid));
+        }
+
+        // to allow defining Vector/KeyedVector of UUID type
+        DrmUUID(const uint8_t uuid_in[UUID_SIZE]) {
+            memcpy(this->uuid, uuid_in, sizeof(uuid));
+        }
+
+        const uint8_t *ptr() const {
+            return uuid;
+        }
+
+        String8 toHexString() const {
+            return arrayToHex(uuid, UUID_SIZE);
+        }
+
+        static String8 toHexString(const uint8_t uuid_in[UUID_SIZE]) {
+            return arrayToHex(uuid_in, UUID_SIZE);
+        }
+
+        static String8 arrayToHex(const uint8_t *array, int bytes) {
+            String8 result;
+            for (int i = 0; i < bytes; i++) {
+                result.appendFormat("%02x", array[i]);
+            }
+
+            return result;
+        }
+
+    protected:
+        uint8_t uuid[UUID_SIZE];
+    };
+
+
+    struct NuPlayerDrm {
+
+        // static helpers - internal
+
+    protected:
+        static sp<IDrm> CreateDrm(status_t *pstatus);
+        static sp<ICrypto> createCrypto(status_t *pstatus);
+        static Vector<DrmUUID> parsePSSH(const void *pssh, size_t psshsize);
+        static Vector<DrmUUID> getSupportedDrmSchemes(const void *pssh, size_t psshsize);
+
+        // static helpers - public
+
+    public:
+        static sp<ICrypto> createCryptoAndPlugin(const uint8_t uuid[16],
+                const Vector<uint8_t> &drmSessionId, status_t &status);
+        // Parcel has only private copy constructor so passing it in rather than returning
+        static void retrieveDrmInfo(const void *pssh, size_t psshsize,
+                const Vector<String8> &mimes_in, Parcel *parcel);
+
+        ////////////////////////////////////////////////////////////////////////////////////////////
+        /// Helpers for NuPlayerDecoder
+        ////////////////////////////////////////////////////////////////////////////////////////////
+
+        static const uint8_t kBlockSize = 16; // AES_BLOCK_SIZE
+
+        struct CryptoInfo {
+            int numSubSamples;
+            uint8_t key[kBlockSize];
+            uint8_t iv[kBlockSize];
+            CryptoPlugin::Mode mode;
+            CryptoPlugin::Pattern pattern;
+            CryptoPlugin::SubSample *subSamples;
+        };
+
+        static CryptoInfo *makeCryptoInfo(
+                int numSubSamples,
+                uint8_t key[kBlockSize],
+                uint8_t iv[kBlockSize],
+                CryptoPlugin::Mode mode,
+                size_t *clearbytes,
+                size_t *encryptedbytes);
+
+        static CryptoInfo *getSampleCryptoInfo(sp<MetaData> meta);
+
+    };  // NuPlayerDrm
+
+}   // android
+
+#endif     //NUPLAYER_DRM_H_
diff --git a/media/libmediaplayerservice/nuplayer/NuPlayerRenderer.cpp b/media/libmediaplayerservice/nuplayer/NuPlayerRenderer.cpp
index b742762..9350440 100644
--- a/media/libmediaplayerservice/nuplayer/NuPlayerRenderer.cpp
+++ b/media/libmediaplayerservice/nuplayer/NuPlayerRenderer.cpp
@@ -21,7 +21,6 @@
 #include "NuPlayerRenderer.h"
 #include <algorithm>
 #include <cutils/properties.h>
-#include <media/stagefright/foundation/ABuffer.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/AMessage.h>
 #include <media/stagefright/foundation/AUtils.h>
@@ -31,6 +30,7 @@
 #include <media/stagefright/MetaData.h>
 #include <media/stagefright/Utils.h>
 #include <media/stagefright/VideoFrameScheduler.h>
+#include <media/MediaCodecBuffer.h>
 
 #include <inttypes.h>
 
@@ -144,9 +144,10 @@
 
     // Try to avoid racing condition in case callback is still on.
     Mutex::Autolock autoLock(mLock);
-    mUseAudioCallback = false;
-    flushQueue(&mAudioQueue);
-    flushQueue(&mVideoQueue);
+    if (mUseAudioCallback) {
+        flushQueue(&mAudioQueue);
+        flushQueue(&mVideoQueue);
+    }
     mWakeLock.clear();
     mMediaClock.clear();
     mVideoScheduler.clear();
@@ -156,12 +157,12 @@
 
 void NuPlayer::Renderer::queueBuffer(
         bool audio,
-        const sp<ABuffer> &buffer,
+        const sp<MediaCodecBuffer> &buffer,
         const sp<AMessage> &notifyConsumed) {
     sp<AMessage> msg = new AMessage(kWhatQueueBuffer, this);
     msg->setInt32("queueGeneration", getQueueGeneration(audio));
     msg->setInt32("audio", static_cast<int32_t>(audio));
-    msg->setBuffer("buffer", buffer);
+    msg->setObject("buffer", buffer);
     msg->setMessage("notifyConsumed", notifyConsumed);
     msg->post();
 }
@@ -297,7 +298,7 @@
             ++mVideoDrainGeneration;
         }
 
-        clearAnchorTime_l();
+        mMediaClock->clearAnchor();
         mVideoLateByUs = 0;
         mSyncQueues = false;
     }
@@ -374,7 +375,8 @@
     }
 }
 
-void NuPlayer::Renderer::clearAnchorTime_l() {
+// Called on renderer looper.
+void NuPlayer::Renderer::clearAnchorTime() {
     mMediaClock->clearAnchor();
     mAnchorTimeMediaUs = -1;
     mAnchorNumFramesWritten = -1;
@@ -403,10 +405,10 @@
     msg->setInt32("flags", flags);
 
     sp<AMessage> response;
-    msg->postAndAwaitResponse(&response);
+    status_t postStatus = msg->postAndAwaitResponse(&response);
 
     int32_t err;
-    if (!response->findInt32("err", &err)) {
+    if (postStatus != OK || response.get() == nullptr || !response->findInt32("err", &err)) {
         err = INVALID_OPERATION;
     } else if (err == OK && isOffloaded != NULL) {
         int32_t offload;
@@ -423,6 +425,25 @@
     msg->postAndAwaitResponse(&response);
 }
 
+void NuPlayer::Renderer::changeAudioFormat(
+        const sp<AMessage> &format,
+        bool offloadOnly,
+        bool hasVideo,
+        uint32_t flags,
+        const sp<AMessage> &notify) {
+    sp<AMessage> meta = new AMessage;
+    meta->setMessage("format", format);
+    meta->setInt32("offload-only", offloadOnly);
+    meta->setInt32("has-video", hasVideo);
+    meta->setInt32("flags", flags);
+
+    sp<AMessage> msg = new AMessage(kWhatChangeAudioFormat, this);
+    msg->setInt32("queueGeneration", getQueueGeneration(true /* audio */));
+    msg->setMessage("notify", notify);
+    msg->setMessage("meta", meta);
+    msg->post();
+}
+
 void NuPlayer::Renderer::onMessageReceived(const sp<AMessage> &msg) {
     switch (msg->what()) {
         case kWhatOpenAudioSink:
@@ -470,6 +491,41 @@
             break;
         }
 
+        case kWhatChangeAudioFormat:
+        {
+            int32_t queueGeneration;
+            CHECK(msg->findInt32("queueGeneration", &queueGeneration));
+
+            sp<AMessage> notify;
+            CHECK(msg->findMessage("notify", &notify));
+
+            if (offloadingAudio()) {
+                ALOGW("changeAudioFormat should NOT be called in offload mode");
+                notify->setInt32("err", INVALID_OPERATION);
+                notify->post();
+                break;
+            }
+
+            sp<AMessage> meta;
+            CHECK(msg->findMessage("meta", &meta));
+
+            if (queueGeneration != getQueueGeneration(true /* audio */)
+                    || mAudioQueue.empty()) {
+                onChangeAudioFormat(meta, notify);
+                break;
+            }
+
+            QueueEntry entry;
+            entry.mNotifyConsumed = notify;
+            entry.mMeta = meta;
+
+            Mutex::Autolock autoLock(mLock);
+            mAudioQueue.push_back(entry);
+            postDrainAudioQueue_l();
+
+            break;
+        }
+
         case kWhatDrainAudioQueue:
         {
             mDrainAudioQueuePending = false;
@@ -869,7 +925,7 @@
     while (it != mAudioQueue.end()) {
         int32_t eos;
         QueueEntry *entry = &*it++;
-        if (entry->mBuffer == NULL
+        if ((entry->mBuffer == nullptr && entry->mNotifyConsumed == nullptr)
                 || (entry->mNotifyConsumed->findInt32("eos", &eos) && eos != 0)) {
             itEOS = it;
             foundEOS = true;
@@ -879,9 +935,14 @@
     if (foundEOS) {
         // post all replies before EOS and drop the samples
         for (it = mAudioQueue.begin(); it != itEOS; it++) {
-            if (it->mBuffer == NULL) {
-                // delay doesn't matter as we don't even have an AudioTrack
-                notifyEOS(true /* audio */, it->mFinalResult);
+            if (it->mBuffer == nullptr) {
+                if (it->mNotifyConsumed == nullptr) {
+                    // delay doesn't matter as we don't even have an AudioTrack
+                    notifyEOS(true /* audio */, it->mFinalResult);
+                } else {
+                    // TAG for re-opening audio sink.
+                    onChangeAudioFormat(it->mMeta, it->mNotifyConsumed);
+                }
             } else {
                 it->mNotifyConsumed->post();
             }
@@ -933,9 +994,14 @@
     while (!mAudioQueue.empty()) {
         QueueEntry *entry = &*mAudioQueue.begin();
 
-        mLastAudioBufferDrained = entry->mBufferOrdinal;
-
         if (entry->mBuffer == NULL) {
+            if (entry->mNotifyConsumed != nullptr) {
+                // TAG for re-open audio sink.
+                onChangeAudioFormat(entry->mMeta, entry->mNotifyConsumed);
+                mAudioQueue.erase(mAudioQueue.begin());
+                continue;
+            }
+
             // EOS
             int64_t postEOSDelayUs = 0;
             if (mAudioSink->needsTrailingPadding()) {
@@ -956,6 +1022,8 @@
             return false;
         }
 
+        mLastAudioBufferDrained = entry->mBufferOrdinal;
+
         // ignore 0-sized buffer which could be EOS marker with no data
         if (entry->mOffset == 0 && entry->mBuffer->size() > 0) {
             int64_t mediaTimeUs;
@@ -1291,8 +1359,7 @@
         if (!mVideoSampleReceived && !mHasAudio) {
             // This will ensure that the first frame after a flush won't be used as anchor
             // when renderer is in paused state, because resume can happen any time after seek.
-            Mutex::Autolock autoLock(mLock);
-            clearAnchorTime_l();
+            clearAnchorTime();
         }
     }
 
@@ -1368,8 +1435,9 @@
         }
     }
 
-    sp<ABuffer> buffer;
-    CHECK(msg->findBuffer("buffer", &buffer));
+    sp<RefBase> obj;
+    CHECK(msg->findObject("buffer", &obj));
+    sp<MediaCodecBuffer> buffer = static_cast<MediaCodecBuffer *>(obj.get());
 
     sp<AMessage> notifyConsumed;
     CHECK(msg->findMessage("notifyConsumed", &notifyConsumed));
@@ -1395,8 +1463,8 @@
         return;
     }
 
-    sp<ABuffer> firstAudioBuffer = (*mAudioQueue.begin()).mBuffer;
-    sp<ABuffer> firstVideoBuffer = (*mVideoQueue.begin()).mBuffer;
+    sp<MediaCodecBuffer> firstAudioBuffer = (*mAudioQueue.begin()).mBuffer;
+    sp<MediaCodecBuffer> firstVideoBuffer = (*mVideoQueue.begin()).mBuffer;
 
     if (firstAudioBuffer == NULL || firstVideoBuffer == NULL) {
         // EOS signalled on either queue.
@@ -1501,8 +1569,8 @@
         // Therefore we'll stop syncing the queues if at least one of them
         // is flushed.
         syncQueuesDone_l();
-        clearAnchorTime_l();
     }
+    clearAnchorTime();
 
     ALOGV("flushing %s", audio ? "audio" : "video");
     if (audio) {
@@ -1573,6 +1641,9 @@
 
         if (entry->mBuffer != NULL) {
             entry->mNotifyConsumed->post();
+        } else if (entry->mNotifyConsumed != nullptr) {
+            // Is it needed to open audio sink now?
+            onChangeAudioFormat(entry->mMeta, entry->mNotifyConsumed);
         }
 
         queue->erase(queue->begin());
@@ -1610,10 +1681,7 @@
     }
     CHECK(!mDrainAudioQueuePending);
     mNumFramesWritten = 0;
-    {
-        Mutex::Autolock autoLock(mLock);
-        mAnchorNumFramesWritten = -1;
-    }
+    mAnchorNumFramesWritten = -1;
     uint32_t written;
     if (mAudioSink->getFramesWritten(&written) == OK) {
         mNumFramesWritten = written;
@@ -1961,5 +2029,27 @@
     mCurrentPcmInfo = AUDIO_PCMINFO_INITIALIZER;
 }
 
+void NuPlayer::Renderer::onChangeAudioFormat(
+        const sp<AMessage> &meta, const sp<AMessage> &notify) {
+    sp<AMessage> format;
+    CHECK(meta->findMessage("format", &format));
+
+    int32_t offloadOnly;
+    CHECK(meta->findInt32("offload-only", &offloadOnly));
+
+    int32_t hasVideo;
+    CHECK(meta->findInt32("has-video", &hasVideo));
+
+    uint32_t flags;
+    CHECK(meta->findInt32("flags", (int32_t *)&flags));
+
+    status_t err = onOpenAudioSink(format, offloadOnly, hasVideo, flags);
+
+    if (err != OK) {
+        notify->setInt32("err", err);
+    }
+    notify->post();
+}
+
 }  // namespace android
 
diff --git a/media/libmediaplayerservice/nuplayer/NuPlayerRenderer.h b/media/libmediaplayerservice/nuplayer/NuPlayerRenderer.h
index fe7f8fa..385bb06 100644
--- a/media/libmediaplayerservice/nuplayer/NuPlayerRenderer.h
+++ b/media/libmediaplayerservice/nuplayer/NuPlayerRenderer.h
@@ -25,9 +25,9 @@
 
 namespace android {
 
-struct ABuffer;
 class  AWakeLock;
 struct MediaClock;
+class MediaCodecBuffer;
 struct VideoFrameScheduler;
 
 struct NuPlayer::Renderer : public AHandler {
@@ -46,7 +46,7 @@
 
     void queueBuffer(
             bool audio,
-            const sp<ABuffer> &buffer,
+            const sp<MediaCodecBuffer> &buffer,
             const sp<AMessage> &notifyConsumed);
 
     void queueEOS(bool audio, status_t finalResult);
@@ -60,8 +60,6 @@
 
     void signalTimeDiscontinuity();
 
-    void signalAudioSinkChanged();
-
     void signalDisableOffloadAudio();
     void signalEnableOffloadAudio();
 
@@ -81,6 +79,14 @@
             bool *isOffloaded);
     void closeAudioSink();
 
+    // re-open audio sink after all pending audio buffers played.
+    void changeAudioFormat(
+            const sp<AMessage> &format,
+            bool offloadOnly,
+            bool hasVideo,
+            uint32_t flags,
+            const sp<AMessage> &notify);
+
     enum {
         kWhatEOS                      = 'eos ',
         kWhatFlushComplete            = 'fluC',
@@ -118,14 +124,19 @@
         kWhatResume              = 'resm',
         kWhatOpenAudioSink       = 'opnA',
         kWhatCloseAudioSink      = 'clsA',
+        kWhatChangeAudioFormat   = 'chgA',
         kWhatStopAudioSink       = 'stpA',
         kWhatDisableOffloadAudio = 'noOA',
         kWhatEnableOffloadAudio  = 'enOA',
         kWhatSetVideoFrameRate   = 'sVFR',
     };
 
+    // if mBuffer != nullptr, it's a buffer containing real data.
+    // else if mNotifyConsumed == nullptr, it's EOS.
+    // else it's a tag for re-opening audio sink in different format.
     struct QueueEntry {
-        sp<ABuffer> mBuffer;
+        sp<MediaCodecBuffer> mBuffer;
+        sp<AMessage> mMeta;
         sp<AMessage> mNotifyConsumed;
         size_t mOffset;
         status_t mFinalResult;
@@ -220,7 +231,7 @@
     int64_t getPendingAudioPlayoutDurationUs(int64_t nowUs);
     void postDrainAudioQueue_l(int64_t delayUs = 0);
 
-    void clearAnchorTime_l();
+    void clearAnchorTime();
     void clearAudioFirstAnchorTime_l();
     void setAudioFirstAnchorTimeIfNeeded_l(int64_t mediaUs);
     void setVideoLateByUs(int64_t lateUs);
@@ -258,6 +269,7 @@
             bool hasVideo,
             uint32_t flags);
     void onCloseAudioSink();
+    void onChangeAudioFormat(const sp<AMessage> &meta, const sp<AMessage> &notify);
 
     void notifyEOS(bool audio, status_t finalResult, int64_t delayUs = 0);
     void notifyFlushComplete(bool audio);
diff --git a/media/libmediaplayerservice/nuplayer/NuPlayerSource.h b/media/libmediaplayerservice/nuplayer/NuPlayerSource.h
index 438db0c..e7cca27 100644
--- a/media/libmediaplayerservice/nuplayer/NuPlayerSource.h
+++ b/media/libmediaplayerservice/nuplayer/NuPlayerSource.h
@@ -20,9 +20,10 @@
 
 #include "NuPlayer.h"
 
+#include <media/ICrypto.h>
+#include <media/mediaplayer.h>
 #include <media/stagefright/foundation/AMessage.h>
 #include <media/stagefright/MetaData.h>
-#include <media/mediaplayer.h>
 #include <utils/Vector.h>
 
 namespace android {
@@ -55,6 +56,8 @@
         kWhatQueueDecoderShutdown,
         kWhatDrmNoLicense,
         kWhatInstantiateSecureDecoders,
+        // Modular DRM
+        kWhatDrmInfo,
     };
 
     // The provides message is used to notify the player about various
@@ -63,6 +66,10 @@
         : mNotify(notify) {
     }
 
+    virtual status_t getDefaultBufferingSettings(
+            BufferingSettings* buffering /* nonnull */) = 0;
+    virtual status_t setBufferingSettings(const BufferingSettings& buffering) = 0;
+
     virtual void prepareAsync() = 0;
 
     virtual void start() = 0;
@@ -108,7 +115,9 @@
         return INVALID_OPERATION;
     }
 
-    virtual status_t seekTo(int64_t /* seekTimeUs */) {
+    virtual status_t seekTo(
+            int64_t /* seekTimeUs */,
+            MediaPlayerSeekMode /* mode */ = MediaPlayerSeekMode::SEEK_PREVIOUS_SYNC) {
         return INVALID_OPERATION;
     }
 
@@ -126,6 +135,17 @@
 
     virtual void setOffloadAudio(bool /* offload */) {}
 
+    // Modular DRM
+    virtual status_t prepareDrm(
+            const uint8_t /*uuid*/[16], const Vector<uint8_t> &/*drmSessionId*/,
+            sp<ICrypto> */*crypto*/) {
+        return INVALID_OPERATION;
+    }
+
+    virtual status_t releaseDrm() {
+        return INVALID_OPERATION;
+    }
+
 protected:
     virtual ~Source() {}
 
@@ -137,6 +157,8 @@
     void notifyVideoSizeChanged(const sp<AMessage> &format = NULL);
     void notifyInstantiateSecureDecoders(const sp<AMessage> &reply);
     void notifyPrepared(status_t err = OK);
+    // Modular DRM
+    void notifyDrmInfo(const sp<ABuffer> &buffer);
 
 private:
     sp<AMessage> mNotify;
diff --git a/media/libmediaplayerservice/nuplayer/RTSPSource.cpp b/media/libmediaplayerservice/nuplayer/RTSPSource.cpp
index c4e5df7..9264e49 100644
--- a/media/libmediaplayerservice/nuplayer/RTSPSource.cpp
+++ b/media/libmediaplayerservice/nuplayer/RTSPSource.cpp
@@ -32,11 +32,11 @@
 
 const int64_t kNearEOSTimeoutUs = 2000000ll; // 2 secs
 
-// Buffer Underflow/Prepare/StartServer/Overflow Marks
-const int64_t NuPlayer::RTSPSource::kUnderflowMarkUs   =  1000000ll;
-const int64_t NuPlayer::RTSPSource::kPrepareMarkUs     =  3000000ll;
-const int64_t NuPlayer::RTSPSource::kStartServerMarkUs =  5000000ll;
-const int64_t NuPlayer::RTSPSource::kOverflowMarkUs    = 10000000ll;
+// Default Buffer Underflow/Prepare/StartServer/Overflow Marks
+static const int kUnderflowMarkMs   =  1000;  // 1 second
+static const int kPrepareMarkMs     =  3000;  // 3 seconds
+//static const int kStartServerMarkMs =  5000;
+static const int kOverflowMarkMs    = 10000;  // 10 seconds
 
 NuPlayer::RTSPSource::RTSPSource(
         const sp<AMessage> &notify,
@@ -62,6 +62,7 @@
       mSeekGeneration(0),
       mEOSTimeoutAudio(0),
       mEOSTimeoutVideo(0) {
+    getDefaultBufferingSettings(&mBufferingSettings);
     if (headers) {
         mExtraHeaders = *headers;
 
@@ -83,6 +84,34 @@
     }
 }
 
+status_t NuPlayer::RTSPSource::getDefaultBufferingSettings(
+            BufferingSettings* buffering /* nonnull */) {
+    buffering->mInitialBufferingMode = BUFFERING_MODE_TIME_ONLY;
+    buffering->mRebufferingMode = BUFFERING_MODE_TIME_ONLY;
+    buffering->mInitialWatermarkMs = kPrepareMarkMs;
+    buffering->mRebufferingWatermarkLowMs = kUnderflowMarkMs;
+    buffering->mRebufferingWatermarkHighMs = kOverflowMarkMs;
+
+    return OK;
+}
+
+status_t NuPlayer::RTSPSource::setBufferingSettings(const BufferingSettings& buffering) {
+    if (mLooper == NULL) {
+        mBufferingSettings = buffering;
+        return OK;
+    }
+
+    sp<AMessage> msg = new AMessage(kWhatSetBufferingSettings, this);
+    writeToAMessage(msg, buffering);
+    sp<AMessage> response;
+    status_t err = msg->postAndAwaitResponse(&response);
+    if (err == OK && response != NULL) {
+        CHECK(response->findInt32("err", &err));
+    }
+
+    return err;
+}
+
 void NuPlayer::RTSPSource::prepareAsync() {
     if (mIsSDP && mHTTPService == NULL) {
         notifyPrepared(BAD_VALUE);
@@ -258,7 +287,7 @@
 }
 
 status_t NuPlayer::RTSPSource::getDuration(int64_t *durationUs) {
-    *durationUs = 0ll;
+    *durationUs = -1ll;
 
     int64_t audioDurationUs;
     if (mAudioTrack != NULL
@@ -279,10 +308,11 @@
     return OK;
 }
 
-status_t NuPlayer::RTSPSource::seekTo(int64_t seekTimeUs) {
+status_t NuPlayer::RTSPSource::seekTo(int64_t seekTimeUs, MediaPlayerSeekMode mode) {
     sp<AMessage> msg = new AMessage(kWhatPerformSeek, this);
     msg->setInt32("generation", ++mSeekGeneration);
     msg->setInt64("timeUs", seekTimeUs);
+    msg->setInt32("mode", mode);
 
     sp<AMessage> response;
     status_t err = msg->postAndAwaitResponse(&response);
@@ -327,7 +357,8 @@
         int64_t bufferedDurationUs = src->getBufferedDurationUs(&finalResult);
 
         // isFinished when duration is 0 checks for EOS result only
-        if (bufferedDurationUs > kPrepareMarkUs || src->isFinished(/* duration */ 0)) {
+        if (bufferedDurationUs > mBufferingSettings.mInitialWatermarkMs * 1000
+                || src->isFinished(/* duration */ 0)) {
             ++preparedCount;
         }
 
@@ -335,13 +366,16 @@
             ++overflowCount;
             ++finishedCount;
         } else {
-            if (bufferedDurationUs < kUnderflowMarkUs) {
+            if (bufferedDurationUs < mBufferingSettings.mRebufferingWatermarkLowMs * 1000) {
                 ++underflowCount;
             }
-            if (bufferedDurationUs > kOverflowMarkUs) {
+            if (bufferedDurationUs > mBufferingSettings.mRebufferingWatermarkHighMs * 1000) {
                 ++overflowCount;
             }
-            if (bufferedDurationUs < kStartServerMarkUs) {
+            int64_t startServerMarkUs =
+                    (mBufferingSettings.mRebufferingWatermarkLowMs
+                        + mBufferingSettings.mRebufferingWatermarkHighMs) / 2 * 1000ll;
+            if (bufferedDurationUs < startServerMarkUs) {
                 ++startCount;
             }
         }
@@ -465,9 +499,12 @@
         }
 
         int64_t seekTimeUs;
+        int32_t mode;
         CHECK(msg->findInt64("timeUs", &seekTimeUs));
+        CHECK(msg->findInt32("mode", &mode));
 
-        performSeek(seekTimeUs);
+        // TODO: add "mode" to performSeek.
+        performSeek(seekTimeUs/*, (MediaPlayerSeekMode)mode */);
         return;
     } else if (msg->what() == kWhatPollBuffering) {
         onPollBuffering();
@@ -475,6 +512,36 @@
     } else if (msg->what() == kWhatSignalEOS) {
         onSignalEOS(msg);
         return;
+    } else if (msg->what() == kWhatSetBufferingSettings) {
+        sp<AReplyToken> replyID;
+        CHECK(msg->senderAwaitsResponse(&replyID));
+
+        BufferingSettings buffering;
+        readFromAMessage(msg, &buffering);
+
+        status_t err = OK;
+        if (buffering.IsSizeBasedBufferingMode(buffering.mInitialBufferingMode)
+                || buffering.IsSizeBasedBufferingMode(buffering.mRebufferingMode)
+                || (buffering.mRebufferingWatermarkLowMs > buffering.mRebufferingWatermarkHighMs
+                    && buffering.IsTimeBasedBufferingMode(buffering.mRebufferingMode))) {
+            err = BAD_VALUE;
+        } else {
+            if (buffering.mInitialBufferingMode == BUFFERING_MODE_NONE) {
+                buffering.mInitialWatermarkMs = BufferingSettings::kNoWatermark;
+            }
+            if (buffering.mRebufferingMode == BUFFERING_MODE_NONE) {
+                buffering.mRebufferingWatermarkLowMs = BufferingSettings::kNoWatermark;
+                buffering.mRebufferingWatermarkHighMs = INT32_MAX;
+            }
+
+            mBufferingSettings = buffering;
+        }
+
+        sp<AMessage> response = new AMessage;
+        response->setInt32("err", err);
+        response->postReply(replyID);
+
+        return;
     }
 
     CHECK_EQ(msg->what(), (int)kWhatNotify);
diff --git a/media/libmediaplayerservice/nuplayer/RTSPSource.h b/media/libmediaplayerservice/nuplayer/RTSPSource.h
index c7834ef..0812991 100644
--- a/media/libmediaplayerservice/nuplayer/RTSPSource.h
+++ b/media/libmediaplayerservice/nuplayer/RTSPSource.h
@@ -40,6 +40,10 @@
             uid_t uid = 0,
             bool isSDP = false);
 
+    virtual status_t getDefaultBufferingSettings(
+            BufferingSettings* buffering /* nonnull */) override;
+    virtual status_t setBufferingSettings(const BufferingSettings& buffering) override;
+
     virtual void prepareAsync();
     virtual void start();
     virtual void stop();
@@ -49,7 +53,9 @@
     virtual status_t dequeueAccessUnit(bool audio, sp<ABuffer> *accessUnit);
 
     virtual status_t getDuration(int64_t *durationUs);
-    virtual status_t seekTo(int64_t seekTimeUs);
+    virtual status_t seekTo(
+            int64_t seekTimeUs,
+            MediaPlayerSeekMode mode = MediaPlayerSeekMode::SEEK_PREVIOUS_SYNC) override;
 
     void onMessageReceived(const sp<AMessage> &msg);
 
@@ -65,6 +71,7 @@
         kWhatPerformSeek     = 'seek',
         kWhatPollBuffering   = 'poll',
         kWhatSignalEOS       = 'eos ',
+        kWhatSetBufferingSettings = 'sBuS',
     };
 
     enum State {
@@ -79,12 +86,6 @@
         kFlagIncognito = 1,
     };
 
-    // Buffer Prepare/Underflow/Overflow/Resume Marks
-    static const int64_t kPrepareMarkUs;
-    static const int64_t kUnderflowMarkUs;
-    static const int64_t kOverflowMarkUs;
-    static const int64_t kStartServerMarkUs;
-
     struct TrackInfo {
         sp<AnotherPacketSource> mSource;
 
@@ -108,6 +109,7 @@
     bool mBuffering;
     bool mInPreparationPhase;
     bool mEOSPending;
+    BufferingSettings mBufferingSettings;
 
     sp<ALooper> mLooper;
     sp<MyHandler> mHandler;
diff --git a/media/libmediaplayerservice/nuplayer/StreamingSource.cpp b/media/libmediaplayerservice/nuplayer/StreamingSource.cpp
index d6b1e8c..fc0803b 100644
--- a/media/libmediaplayerservice/nuplayer/StreamingSource.cpp
+++ b/media/libmediaplayerservice/nuplayer/StreamingSource.cpp
@@ -51,6 +51,22 @@
     }
 }
 
+status_t NuPlayer::StreamingSource::getDefaultBufferingSettings(
+        BufferingSettings *buffering /* nonnull */) {
+    *buffering = BufferingSettings();
+    return OK;
+}
+
+status_t NuPlayer::StreamingSource::setBufferingSettings(
+        const BufferingSettings &buffering) {
+    if (buffering.mInitialBufferingMode != BUFFERING_MODE_NONE
+            || buffering.mRebufferingMode != BUFFERING_MODE_NONE) {
+        return BAD_VALUE;
+    }
+
+    return OK;
+}
+
 void NuPlayer::StreamingSource::prepareAsync() {
     if (mLooper == NULL) {
         mLooper = new ALooper;
diff --git a/media/libmediaplayerservice/nuplayer/StreamingSource.h b/media/libmediaplayerservice/nuplayer/StreamingSource.h
index db88c7f..2e1d2b3 100644
--- a/media/libmediaplayerservice/nuplayer/StreamingSource.h
+++ b/media/libmediaplayerservice/nuplayer/StreamingSource.h
@@ -32,6 +32,10 @@
             const sp<AMessage> &notify,
             const sp<IStreamSource> &source);
 
+    virtual status_t getDefaultBufferingSettings(
+            BufferingSettings* buffering /* nonnull */) override;
+    virtual status_t setBufferingSettings(const BufferingSettings& buffering) override;
+
     virtual void prepareAsync();
     virtual void start();
 
diff --git a/media/libmediaplayerservice/tests/Android.mk b/media/libmediaplayerservice/tests/Android.mk
index ea75a97..dc761ec 100644
--- a/media/libmediaplayerservice/tests/Android.mk
+++ b/media/libmediaplayerservice/tests/Android.mk
@@ -14,13 +14,14 @@
 	libmediaplayerservice \
 	libmediadrm \
 	libutils \
+	android.hidl.base@1.0 \
+	android.hardware.drm@1.0 \
 
 LOCAL_C_INCLUDES := \
 	frameworks/av/include \
 	frameworks/av/media/libmediaplayerservice \
 
 LOCAL_CFLAGS += -Werror -Wall
-LOCAL_CLANG := true
 
 LOCAL_32_BIT_ONLY := true
 
diff --git a/media/libnbaio/Android.bp b/media/libnbaio/Android.bp
index 615b541..f511876 100644
--- a/media/libnbaio/Android.bp
+++ b/media/libnbaio/Android.bp
@@ -2,16 +2,15 @@
     name: "libnbaio",
     srcs: [
         "AudioBufferProviderSource.cpp",
-        "AudioStreamOutSink.cpp",
         "AudioStreamInSource.cpp",
-        "NBAIO.cpp",
+        "AudioStreamOutSink.cpp",
         "MonoPipe.cpp",
         "MonoPipeReader.cpp",
+        "NBAIO.cpp",
+        "NBLog.cpp",
         "Pipe.cpp",
         "PipeReader.cpp",
         "SourceAudioBufferProvider.cpp",
-
-        "NBLog.cpp",
     ],
 
     // libsndfile license is incompatible; uncomment to use for local debug only
@@ -33,4 +32,10 @@
         "-Werror",
         "-Wall",
     ],
+
+    include_dirs: ["system/media/audio_utils/include"],
+
+    local_include_dirs: ["include"],
+
+    export_include_dirs: ["include"],
 }
diff --git a/media/libnbaio/AudioStreamInSource.cpp b/media/libnbaio/AudioStreamInSource.cpp
index 2dc3050..1054b68 100644
--- a/media/libnbaio/AudioStreamInSource.cpp
+++ b/media/libnbaio/AudioStreamInSource.cpp
@@ -19,33 +19,38 @@
 
 #include <cutils/compiler.h>
 #include <utils/Log.h>
+#include <media/audiohal/StreamHalInterface.h>
 #include <media/nbaio/AudioStreamInSource.h>
 
 namespace android {
 
-AudioStreamInSource::AudioStreamInSource(audio_stream_in *stream) :
+AudioStreamInSource::AudioStreamInSource(sp<StreamInHalInterface> stream) :
         NBAIO_Source(),
         mStream(stream),
         mStreamBufferSizeBytes(0),
         mFramesOverrun(0),
         mOverruns(0)
 {
-    ALOG_ASSERT(stream != NULL);
+    ALOG_ASSERT(stream != 0);
 }
 
 AudioStreamInSource::~AudioStreamInSource()
 {
+    mStream.clear();
 }
 
 ssize_t AudioStreamInSource::negotiate(const NBAIO_Format offers[], size_t numOffers,
                                       NBAIO_Format counterOffers[], size_t& numCounterOffers)
 {
     if (!Format_isValid(mFormat)) {
-        mStreamBufferSizeBytes = mStream->common.get_buffer_size(&mStream->common);
-        audio_format_t streamFormat = mStream->common.get_format(&mStream->common);
-        uint32_t sampleRate = mStream->common.get_sample_rate(&mStream->common);
-        audio_channel_mask_t channelMask =
-                (audio_channel_mask_t) mStream->common.get_channels(&mStream->common);
+        status_t result;
+        result = mStream->getBufferSize(&mStreamBufferSizeBytes);
+        if (result != OK) return result;
+        audio_format_t streamFormat;
+        uint32_t sampleRate;
+        audio_channel_mask_t channelMask;
+        result = mStream->getAudioProperties(&sampleRate, &channelMask, &streamFormat);
+        if (result != OK) return result;
         mFormat = Format_from_SR_C(sampleRate,
                 audio_channel_count_from_in_mask(channelMask), streamFormat);
         mFrameSize = Format_frameSize(mFormat);
@@ -55,11 +60,14 @@
 
 int64_t AudioStreamInSource::framesOverrun()
 {
-    uint32_t framesOverrun = mStream->get_input_frames_lost(mStream);
-    if (framesOverrun > 0) {
+    uint32_t framesOverrun;
+    status_t result = mStream->getInputFramesLost(&framesOverrun);
+    if (result == OK && framesOverrun > 0) {
         mFramesOverrun += framesOverrun;
         // FIXME only increment for contiguous ranges
         ++mOverruns;
+    } else if (result != OK) {
+        ALOGE("Error when retrieving lost frames count from HAL: %d", result);
     }
     return mFramesOverrun;
 }
@@ -69,12 +77,14 @@
     if (CC_UNLIKELY(!Format_isValid(mFormat))) {
         return NEGOTIATE;
     }
-    ssize_t bytesRead = mStream->read(mStream, buffer, count * mFrameSize);
-    if (bytesRead > 0) {
+    size_t bytesRead;
+    status_t result = mStream->read(buffer, count * mFrameSize, &bytesRead);
+    if (result == OK && bytesRead > 0) {
         size_t framesRead = bytesRead / mFrameSize;
         mFramesRead += framesRead;
         return framesRead;
     } else {
+        ALOGE_IF(result != OK, "Error while reading data from HAL: %d", result);
         return bytesRead;
     }
 }
diff --git a/media/libnbaio/AudioStreamOutSink.cpp b/media/libnbaio/AudioStreamOutSink.cpp
index ee44678..cbff87d 100644
--- a/media/libnbaio/AudioStreamOutSink.cpp
+++ b/media/libnbaio/AudioStreamOutSink.cpp
@@ -18,31 +18,36 @@
 //#define LOG_NDEBUG 0
 
 #include <utils/Log.h>
+#include <media/audiohal/StreamHalInterface.h>
 #include <media/nbaio/AudioStreamOutSink.h>
 
 namespace android {
 
-AudioStreamOutSink::AudioStreamOutSink(audio_stream_out *stream) :
+AudioStreamOutSink::AudioStreamOutSink(sp<StreamOutHalInterface> stream) :
         NBAIO_Sink(),
         mStream(stream),
         mStreamBufferSizeBytes(0)
 {
-    ALOG_ASSERT(stream != NULL);
+    ALOG_ASSERT(stream != 0);
 }
 
 AudioStreamOutSink::~AudioStreamOutSink()
 {
+    mStream.clear();
 }
 
 ssize_t AudioStreamOutSink::negotiate(const NBAIO_Format offers[], size_t numOffers,
                                       NBAIO_Format counterOffers[], size_t& numCounterOffers)
 {
     if (!Format_isValid(mFormat)) {
-        mStreamBufferSizeBytes = mStream->common.get_buffer_size(&mStream->common);
-        audio_format_t streamFormat = mStream->common.get_format(&mStream->common);
-        uint32_t sampleRate = mStream->common.get_sample_rate(&mStream->common);
-        audio_channel_mask_t channelMask =
-                (audio_channel_mask_t) mStream->common.get_channels(&mStream->common);
+        status_t result;
+        result = mStream->getBufferSize(&mStreamBufferSizeBytes);
+        if (result != OK) return result;
+        audio_format_t streamFormat;
+        uint32_t sampleRate;
+        audio_channel_mask_t channelMask;
+        result = mStream->getAudioProperties(&sampleRate, &channelMask, &streamFormat);
+        if (result != OK) return result;
         mFormat = Format_from_SR_C(sampleRate,
                 audio_channel_count_from_out_mask(channelMask), streamFormat);
         mFrameSize = Format_frameSize(mFormat);
@@ -56,25 +61,24 @@
         return NEGOTIATE;
     }
     ALOG_ASSERT(Format_isValid(mFormat));
-    ssize_t ret = mStream->write(mStream, buffer, count * mFrameSize);
-    if (ret > 0) {
-        ret /= mFrameSize;
-        mFramesWritten += ret;
+    size_t written;
+    status_t ret = mStream->write(buffer, count * mFrameSize, &written);
+    if (ret == OK && written > 0) {
+        written /= mFrameSize;
+        mFramesWritten += written;
+        return written;
     } else {
         // FIXME verify HAL implementations are returning the correct error codes e.g. WOULD_BLOCK
+        ALOGE_IF(ret != OK, "Error while writing data to HAL: %d", ret);
+        return ret;
     }
-    return ret;
 }
 
 status_t AudioStreamOutSink::getTimestamp(ExtendedTimestamp &timestamp)
 {
-    if (mStream->get_presentation_position == NULL) {
-        return INVALID_OPERATION;
-    }
-
     uint64_t position64;
     struct timespec time;
-    if (mStream->get_presentation_position(mStream, &position64, &time) != OK) {
+    if (mStream->getPresentationPosition(&position64, &time) != OK) {
         return INVALID_OPERATION;
     }
     timestamp.mPosition[ExtendedTimestamp::LOCATION_KERNEL] = position64;
diff --git a/media/libnbaio/MonoPipe.cpp b/media/libnbaio/MonoPipe.cpp
index 8d1cb0f..3c5df1a 100644
--- a/media/libnbaio/MonoPipe.cpp
+++ b/media/libnbaio/MonoPipe.cpp
@@ -19,7 +19,6 @@
 #define LOG_TAG "MonoPipe"
 //#define LOG_NDEBUG 0
 
-#include <cutils/atomic.h>
 #include <cutils/compiler.h>
 #include <utils/Log.h>
 #include <utils/Trace.h>
@@ -32,11 +31,11 @@
 
 MonoPipe::MonoPipe(size_t reqFrames, const NBAIO_Format& format, bool writeCanBlock) :
         NBAIO_Sink(format),
-        mReqFrames(reqFrames),
+        // TODO fifo now supports non-power-of-2 buffer sizes, so could remove the roundup
         mMaxFrames(roundup(reqFrames)),
         mBuffer(malloc(mMaxFrames * Format_frameSize(format))),
-        mFront(0),
-        mRear(0),
+        mFifo(mMaxFrames, Format_frameSize(format), mBuffer, true /*throttlesWriter*/),
+        mFifoWriter(mFifo),
         mWriteTsValid(false),
         // mWriteTs
         mSetpoint((reqFrames * 11) / 16),
@@ -53,14 +52,14 @@
     free(mBuffer);
 }
 
-ssize_t MonoPipe::availableToWrite() const
+ssize_t MonoPipe::availableToWrite()
 {
     if (CC_UNLIKELY(!mNegotiated)) {
         return NEGOTIATE;
     }
-    // uses mMaxFrames not mReqFrames, so allows "over-filling" the pipe beyond requested limit
-    ssize_t ret = mMaxFrames - (mRear - android_atomic_acquire_load(&mFront));
-    ALOG_ASSERT((0 <= ret) && (ret <= mMaxFrames));
+    // uses mMaxFrames not reqFrames, so allows "over-filling" the pipe beyond requested limit
+    ssize_t ret = mFifoWriter.available();
+    ALOG_ASSERT(ret <= mMaxFrames);
     return ret;
 }
 
@@ -71,38 +70,33 @@
     }
     size_t totalFramesWritten = 0;
     while (count > 0) {
-        // can't return a negative value, as we already checked for !mNegotiated
-        size_t avail = availableToWrite();
-        size_t written = avail;
-        if (CC_LIKELY(written > count)) {
-            written = count;
-        }
-        size_t rear = mRear & (mMaxFrames - 1);
-        size_t part1 = mMaxFrames - rear;
-        if (part1 > written) {
-            part1 = written;
-        }
-        if (CC_LIKELY(part1 > 0)) {
-            memcpy((char *) mBuffer + (rear * mFrameSize), buffer, part1 * mFrameSize);
-            if (CC_UNLIKELY(rear + part1 == mMaxFrames)) {
-                size_t part2 = written - part1;
-                if (CC_LIKELY(part2 > 0)) {
-                    memcpy(mBuffer, (char *) buffer + (part1 * mFrameSize), part2 * mFrameSize);
-                }
+        ssize_t actual = mFifoWriter.write(buffer, count);
+        ALOG_ASSERT(actual <= count);
+        if (actual < 0) {
+            if (totalFramesWritten == 0) {
+                return actual;
             }
-            android_atomic_release_store(written + mRear, &mRear);
-            totalFramesWritten += written;
+            break;
         }
+        size_t written = (size_t) actual;
+        totalFramesWritten += written;
         if (!mWriteCanBlock || mIsShutdown) {
             break;
         }
         count -= written;
         buffer = (char *) buffer + (written * mFrameSize);
+        // TODO Replace this whole section by audio_util_fifo's setpoint feature.
         // Simulate blocking I/O by sleeping at different rates, depending on a throttle.
         // The throttle tries to keep the mean pipe depth near the setpoint, with a slight jitter.
         uint32_t ns;
         if (written > 0) {
-            size_t filled = (mMaxFrames - avail) + written;
+            ssize_t avail = mFifoWriter.available();
+            ALOG_ASSERT(avail <= mMaxFrames);
+            if (avail < 0) {
+                // don't return avail as status, because totalFramesWritten > 0
+                break;
+            }
+            size_t filled = mMaxFrames - (size_t) avail;
             // FIXME cache these values to avoid re-computation
             if (filled <= mSetpoint / 2) {
                 // pipe is (nearly) empty, fill quickly
diff --git a/media/libnbaio/MonoPipeReader.cpp b/media/libnbaio/MonoPipeReader.cpp
index 01dc524..a9b4d18 100644
--- a/media/libnbaio/MonoPipeReader.cpp
+++ b/media/libnbaio/MonoPipeReader.cpp
@@ -25,7 +25,7 @@
 
 MonoPipeReader::MonoPipeReader(MonoPipe* pipe) :
         NBAIO_Source(pipe->mFormat),
-        mPipe(pipe)
+        mPipe(pipe), mFifoReader(mPipe->mFifo, true /*throttlesWriter*/)
 {
 }
 
@@ -38,38 +38,21 @@
     if (CC_UNLIKELY(!mNegotiated)) {
         return NEGOTIATE;
     }
-    ssize_t ret = android_atomic_acquire_load(&mPipe->mRear) - mPipe->mFront;
-    ALOG_ASSERT((0 <= ret) && ((size_t) ret <= mPipe->mMaxFrames));
+    ssize_t ret = mFifoReader.available();
+    ALOG_ASSERT(ret <= mPipe->mMaxFrames);
     return ret;
 }
 
 ssize_t MonoPipeReader::read(void *buffer, size_t count)
 {
     // count == 0 is unlikely and not worth checking for explicitly; will be handled automatically
-    ssize_t red = availableToRead();
-    if (CC_UNLIKELY(red <= 0)) {
-        return red;
+    ssize_t actual = mFifoReader.read(buffer, count);
+    ALOG_ASSERT(actual <= count);
+    if (CC_UNLIKELY(actual <= 0)) {
+        return actual;
     }
-    if (CC_LIKELY((size_t) red > count)) {
-        red = count;
-    }
-    size_t front = mPipe->mFront & (mPipe->mMaxFrames - 1);
-    size_t part1 = mPipe->mMaxFrames - front;
-    if (part1 > (size_t) red) {
-        part1 = red;
-    }
-    if (CC_LIKELY(part1 > 0)) {
-        memcpy(buffer, (char *) mPipe->mBuffer + (front * mFrameSize), part1 * mFrameSize);
-        if (CC_UNLIKELY(front + part1 == mPipe->mMaxFrames)) {
-            size_t part2 = red - part1;
-            if (CC_LIKELY(part2 > 0)) {
-                memcpy((char *) buffer + (part1 * mFrameSize), mPipe->mBuffer, part2 * mFrameSize);
-            }
-        }
-        android_atomic_release_store(red + mPipe->mFront, &mPipe->mFront);
-        mFramesRead += red;
-    }
-    return red;
+    mFramesRead += (size_t) actual;
+    return actual;
 }
 
 void MonoPipeReader::onTimestamp(const ExtendedTimestamp &timestamp)
diff --git a/media/libnbaio/NBLog.cpp b/media/libnbaio/NBLog.cpp
index 4d14904..7936ad2 100644
--- a/media/libnbaio/NBLog.cpp
+++ b/media/libnbaio/NBLog.cpp
@@ -17,17 +17,21 @@
 #define LOG_TAG "NBLog"
 //#define LOG_NDEBUG 0
 
+#include <climits>
 #include <stdarg.h>
 #include <stdint.h>
 #include <stdio.h>
 #include <string.h>
+#include <sys/prctl.h>
 #include <time.h>
 #include <new>
-#include <cutils/atomic.h>
+#include <audio_utils/roundup.h>
 #include <media/nbaio/NBLog.h>
 #include <utils/Log.h>
 #include <utils/String8.h>
 
+#include <queue>
+
 namespace android {
 
 int NBLog::Entry::readAt(size_t offset) const
@@ -47,6 +51,134 @@
 
 // ---------------------------------------------------------------------------
 
+NBLog::FormatEntry::FormatEntry(const uint8_t *entry) : mEntry(entry) {
+    ALOGW_IF(entry[offsetof(struct entry, type)] != EVENT_START_FMT,
+        "Created format entry with invalid event type %d", entry[offsetof(struct entry, type)]);
+}
+
+NBLog::FormatEntry::FormatEntry(const NBLog::FormatEntry::iterator &it) : FormatEntry(it.ptr) {}
+
+const char *NBLog::FormatEntry::formatString() const {
+    return (const char*) mEntry + offsetof(entry, data);
+}
+
+size_t NBLog::FormatEntry::formatStringLength() const {
+    return mEntry[offsetof(entry, length)];
+}
+
+NBLog::FormatEntry::iterator NBLog::FormatEntry::args() const {
+    auto it = begin();
+    // Second entry can be author or timestamp. Skip author if present
+    if ((++it)->type == EVENT_AUTHOR) {
+        ++it;
+    }
+    return ++it;
+}
+
+timespec NBLog::FormatEntry::timestamp() const {
+    auto it = begin();
+    if ((++it)->type != EVENT_TIMESTAMP) {
+        ++it;
+    }
+    return it.payload<timespec>();
+}
+
+pid_t NBLog::FormatEntry::author() const {
+    auto it = begin();
+    if ((++it)->type == EVENT_AUTHOR) {
+        return it.payload<int>();
+    }
+    return -1;
+}
+
+NBLog::FormatEntry::iterator NBLog::FormatEntry::copyWithAuthor(
+        std::unique_ptr<audio_utils_fifo_writer> &dst, int author) const {
+    auto it = begin();
+    // copy fmt start entry
+    it.copyTo(dst);
+    // insert author entry
+    size_t authorEntrySize = NBLog::Entry::kOverhead + sizeof(author);
+    uint8_t authorEntry[authorEntrySize];
+    authorEntry[offsetof(entry, type)] = EVENT_AUTHOR;
+    authorEntry[offsetof(entry, length)] =
+        authorEntry[authorEntrySize + NBLog::Entry::kPreviousLengthOffset] =
+        sizeof(author);
+    *(int*) (&authorEntry[offsetof(entry, data)]) = author;
+    dst->write(authorEntry, authorEntrySize);
+    // copy rest of entries
+    while ((++it)->type != EVENT_END_FMT) {
+        it.copyTo(dst);
+    }
+    it.copyTo(dst);
+    ++it;
+    return it;
+}
+
+void NBLog::FormatEntry::iterator::copyTo(std::unique_ptr<audio_utils_fifo_writer> &dst) const {
+    size_t length = ptr[offsetof(entry, length)] + NBLog::Entry::kOverhead;
+    dst->write(ptr, length);
+}
+
+void NBLog::FormatEntry::iterator::copyData(uint8_t *dst) const {
+    memcpy((void*) dst, ptr + offsetof(entry, data), ptr[offsetof(entry, length)]);
+}
+
+NBLog::FormatEntry::iterator NBLog::FormatEntry::begin() const {
+    return iterator(mEntry);
+}
+
+NBLog::FormatEntry::iterator::iterator()
+    : ptr(nullptr) {}
+
+NBLog::FormatEntry::iterator::iterator(const uint8_t *entry)
+    : ptr(entry) {}
+
+NBLog::FormatEntry::iterator::iterator(const NBLog::FormatEntry::iterator &other)
+    : ptr(other.ptr) {}
+
+const NBLog::FormatEntry::entry& NBLog::FormatEntry::iterator::operator*() const {
+    return *(entry*) ptr;
+}
+
+const NBLog::FormatEntry::entry* NBLog::FormatEntry::iterator::operator->() const {
+    return (entry*) ptr;
+}
+
+NBLog::FormatEntry::iterator& NBLog::FormatEntry::iterator::operator++() {
+    ptr += ptr[offsetof(entry, length)] + NBLog::Entry::kOverhead;
+    return *this;
+}
+
+NBLog::FormatEntry::iterator& NBLog::FormatEntry::iterator::operator--() {
+    ptr -= ptr[NBLog::Entry::kPreviousLengthOffset] + NBLog::Entry::kOverhead;
+    return *this;
+}
+
+NBLog::FormatEntry::iterator NBLog::FormatEntry::iterator::next() const {
+    iterator aux(*this);
+    return ++aux;
+}
+
+NBLog::FormatEntry::iterator NBLog::FormatEntry::iterator::prev() const {
+    iterator aux(*this);
+    return --aux;
+}
+
+int NBLog::FormatEntry::iterator::operator-(const NBLog::FormatEntry::iterator &other) const {
+    return ptr - other.ptr;
+}
+
+bool NBLog::FormatEntry::iterator::operator!=(const iterator &other) const {
+    return ptr != other.ptr;
+}
+
+bool NBLog::FormatEntry::iterator::hasConsistentLength() const {
+    return ptr[offsetof(entry, length)] == ptr[ptr[offsetof(entry, length)] +
+        NBLog::Entry::kOverhead + NBLog::Entry::kPreviousLengthOffset];
+}
+
+// ---------------------------------------------------------------------------
+
 #if 0   // FIXME see note in NBLog.h
 NBLog::Timeline::Timeline(size_t size, void *shared)
     : mSize(roundup(size)), mOwn(shared == NULL),
@@ -67,25 +199,50 @@
 /*static*/
 size_t NBLog::Timeline::sharedSize(size_t size)
 {
+    // TODO fifo now supports non-power-of-2 buffer sizes, so could remove the roundup
     return sizeof(Shared) + roundup(size);
 }
 
 // ---------------------------------------------------------------------------
 
 NBLog::Writer::Writer()
-    : mSize(0), mShared(NULL), mRear(0), mEnabled(false)
+    : mShared(NULL), mFifo(NULL), mFifoWriter(NULL), mEnabled(false), mPidTag(NULL), mPidTagSize(0)
 {
 }
 
-NBLog::Writer::Writer(size_t size, void *shared)
-    : mSize(roundup(size)), mShared((Shared *) shared), mRear(0), mEnabled(mShared != NULL)
+NBLog::Writer::Writer(void *shared, size_t size)
+    : mShared((Shared *) shared),
+      mFifo(mShared != NULL ?
+        new audio_utils_fifo(size, sizeof(uint8_t),
+            mShared->mBuffer, mShared->mRear, NULL /*throttlesFront*/) : NULL),
+      mFifoWriter(mFifo != NULL ? new audio_utils_fifo_writer(*mFifo) : NULL),
+      mEnabled(mFifoWriter != NULL)
 {
+    // caching pid and process name
+    pid_t id = ::getpid();
+    char procName[16];
+    int status = prctl(PR_GET_NAME, procName);
+    if (status) {  // error getting process name
+        procName[0] = '\0';
+    }
+    size_t length = strlen(procName);
+    mPidTagSize = length + sizeof(pid_t);
+    mPidTag = new char[mPidTagSize];
+    memcpy(mPidTag, &id, sizeof(pid_t));
+    memcpy(mPidTag + sizeof(pid_t), procName, length);
 }
 
-NBLog::Writer::Writer(size_t size, const sp<IMemory>& iMemory)
-    : mSize(roundup(size)), mShared(iMemory != 0 ? (Shared *) iMemory->pointer() : NULL),
-      mIMemory(iMemory), mRear(0), mEnabled(mShared != NULL)
+NBLog::Writer::Writer(const sp<IMemory>& iMemory, size_t size)
+    : Writer(iMemory != 0 ? (Shared *) iMemory->pointer() : NULL, size)
 {
+    mIMemory = iMemory;
+}
+
+NBLog::Writer::~Writer()
+{
+    delete mFifoWriter;
+    delete mFifo;
+    delete[] mPidTag;
 }
 
 void NBLog::Writer::log(const char *string)
@@ -93,9 +250,10 @@
     if (!mEnabled) {
         return;
     }
+    LOG_ALWAYS_FATAL_IF(string == NULL, "Attempted to log NULL string");
     size_t length = strlen(string);
-    if (length > 255) {
-        length = 255;
+    if (length > Entry::kMaxLength) {
+        length = Entry::kMaxLength;
     }
     log(EVENT_STRING, string, length);
 }
@@ -116,7 +274,7 @@
     if (!mEnabled) {
         return;
     }
-    char buffer[256];
+    char buffer[Entry::kMaxLength + 1 /*NUL*/];
     int length = vsnprintf(buffer, sizeof(buffer), fmt, ap);
     if (length >= (int) sizeof(buffer)) {
         length = sizeof(buffer) - 1;
@@ -135,16 +293,130 @@
     }
     struct timespec ts;
     if (!clock_gettime(CLOCK_MONOTONIC, &ts)) {
-        log(EVENT_TIMESTAMP, &ts, sizeof(struct timespec));
+        log(EVENT_TIMESTAMP, &ts, sizeof(ts));
     }
 }
 
-void NBLog::Writer::logTimestamp(const struct timespec& ts)
+void NBLog::Writer::logTimestamp(const struct timespec &ts)
 {
     if (!mEnabled) {
         return;
     }
-    log(EVENT_TIMESTAMP, &ts, sizeof(struct timespec));
+    log(EVENT_TIMESTAMP, &ts, sizeof(ts));
+}
+
+void NBLog::Writer::logInteger(const int x)
+{
+    if (!mEnabled) {
+        return;
+    }
+    log(EVENT_INTEGER, &x, sizeof(x));
+}
+
+void NBLog::Writer::logFloat(const float x)
+{
+    if (!mEnabled) {
+        return;
+    }
+    log(EVENT_FLOAT, &x, sizeof(x));
+}
+
+void NBLog::Writer::logPID()
+{
+    if (!mEnabled) {
+        return;
+    }
+    log(EVENT_PID, mPidTag, mPidTagSize);
+}
+
+void NBLog::Writer::logStart(const char *fmt)
+{
+    if (!mEnabled) {
+        return;
+    }
+    size_t length = strlen(fmt);
+    if (length > Entry::kMaxLength) {
+        length = Entry::kMaxLength;
+    }
+    log(EVENT_START_FMT, fmt, length);
+}
+
+void NBLog::Writer::logEnd()
+{
+    if (!mEnabled) {
+        return;
+    }
+    Entry entry = Entry(EVENT_END_FMT, NULL, 0);
+    log(&entry, true);
+}
+
+void NBLog::Writer::logFormat(const char *fmt, ...)
+{
+    if (!mEnabled) {
+        return;
+    }
+
+    va_list ap;
+    va_start(ap, fmt);
+    Writer::logVFormat(fmt, ap);
+    va_end(ap);
+}
+
+void NBLog::Writer::logVFormat(const char *fmt, va_list argp)
+{
+    if (!mEnabled) {
+        return;
+    }
+    Writer::logStart(fmt);
+    int i;
+    double f;
+    char* s;
+    struct timespec t;
+    Writer::logTimestamp();
+    for (const char *p = fmt; *p != '\0'; p++) {
+        // TODO: implement more complex formatting such as %.3f
+        if (*p != '%') {
+            continue;
+        }
+        switch(*++p) {
+        case 's': // string
+            s = va_arg(argp, char *);
+            Writer::log(s);
+            break;
+
+        case 't': // timestamp
+            t = va_arg(argp, struct timespec);
+            Writer::logTimestamp(t);
+            break;
+
+        case 'd': // integer
+            i = va_arg(argp, int);
+            Writer::logInteger(i);
+            break;
+
+        case 'f': // float
+            f = va_arg(argp, double); // float arguments are promoted to double in vararg lists
+            Writer::logFloat((float)f);
+            break;
+
+        case 'p': // pid
+            Writer::logPID();
+            break;
+
+        // the "%\0" case finishes parsing
+        case '\0':
+            --p;
+            break;
+
+        case '%':
+            break;
+
+        default:
+            ALOGW("NBLog Writer parsed invalid format specifier: %c", *p);
+            break;
+        }
+    }
+    Writer::logEnd();
 }
 
 void NBLog::Writer::log(Event event, const void *data, size_t length)
@@ -152,12 +424,19 @@
     if (!mEnabled) {
         return;
     }
-    if (data == NULL || length > 255) {
+    if (data == NULL || length > Entry::kMaxLength) {
+        // TODO Perhaps it makes sense to display truncated data or at least a
+        //      message that the data is too long?  The current behavior can create
+        //      a confusion for a programmer debugging their code.
         return;
     }
     switch (event) {
     case EVENT_STRING:
     case EVENT_TIMESTAMP:
+    case EVENT_INTEGER:
+    case EVENT_FLOAT:
+    case EVENT_PID:
+    case EVENT_START_FMT:
         break;
     case EVENT_RESERVED:
     default:
@@ -176,26 +455,16 @@
         log(entry->mEvent, entry->mData, entry->mLength);
         return;
     }
-    size_t rear = mRear & (mSize - 1);
-    size_t written = mSize - rear;      // written = number of bytes that have been written so far
-    size_t need = entry->mLength + 3;   // mEvent, mLength, data[length], mLength
-                                        // need = number of bytes remaining to write
-    if (written > need) {
-        written = need;
-    }
-    size_t i;
+    size_t need = entry->mLength + Entry::kOverhead;    // mEvent, mLength, data[length], mLength
+                                                        // need = number of bytes remaining to write
+
     // FIXME optimize this using memcpy for the data part of the Entry.
     // The Entry could have a method copyTo(ptr, offset, size) to optimize the copy.
-    for (i = 0; i < written; ++i) {
-        mShared->mBuffer[rear + i] = entry->readAt(i);
+    uint8_t temp[Entry::kMaxLength + Entry::kOverhead];
+    for (size_t i = 0; i < need; i++) {
+        temp[i] = entry->readAt(i);
     }
-    if (rear + written == mSize && (need -= written) > 0)  {
-        for (i = 0; i < need; ++i) {
-            mShared->mBuffer[i] = entry->readAt(written + i);
-        }
-        written += need;
-    }
-    android_atomic_release_store(mRear += written, &mShared->mRear);
+    mFifoWriter->write(temp, need);
 }
 
 bool NBLog::Writer::isEnabled() const
@@ -217,8 +486,8 @@
 {
 }
 
-NBLog::LockedWriter::LockedWriter(size_t size, void *shared)
-    : Writer(size, shared)
+NBLog::LockedWriter::LockedWriter(void *shared, size_t size)
+    : Writer(shared, size)
 {
 }
 
@@ -252,12 +521,43 @@
     Writer::logTimestamp();
 }
 
-void NBLog::LockedWriter::logTimestamp(const struct timespec& ts)
+void NBLog::LockedWriter::logTimestamp(const struct timespec &ts)
 {
     Mutex::Autolock _l(mLock);
     Writer::logTimestamp(ts);
 }
 
+void NBLog::LockedWriter::logInteger(const int x)
+{
+    Mutex::Autolock _l(mLock);
+    Writer::logInteger(x);
+}
+
+void NBLog::LockedWriter::logFloat(const float x)
+{
+    Mutex::Autolock _l(mLock);
+    Writer::logFloat(x);
+}
+
+void NBLog::LockedWriter::logPID()
+{
+    Mutex::Autolock _l(mLock);
+    Writer::logPID();
+}
+
+void NBLog::LockedWriter::logStart(const char *fmt)
+{
+    Mutex::Autolock _l(mLock);
+    Writer::logStart(fmt);
+}
+
+
+void NBLog::LockedWriter::logEnd()
+{
+    Mutex::Autolock _l(mLock);
+    Writer::logEnd();
+}
+
 bool NBLog::LockedWriter::isEnabled() const
 {
     Mutex::Autolock _l(mLock);
@@ -272,82 +572,144 @@
 
 // ---------------------------------------------------------------------------
 
-NBLog::Reader::Reader(size_t size, const void *shared)
-    : mSize(roundup(size)), mShared((const Shared *) shared), mFront(0)
+NBLog::Reader::Reader(const void *shared, size_t size)
+    : mShared((/*const*/ Shared *) shared), /*mIMemory*/
+      mFd(-1), mIndent(0),
+      mFifo(mShared != NULL ?
+        new audio_utils_fifo(size, sizeof(uint8_t),
+            mShared->mBuffer, mShared->mRear, NULL /*throttlesFront*/) : NULL),
+      mFifoReader(mFifo != NULL ? new audio_utils_fifo_reader(*mFifo) : NULL)
 {
 }
 
-NBLog::Reader::Reader(size_t size, const sp<IMemory>& iMemory)
-    : mSize(roundup(size)), mShared(iMemory != 0 ? (const Shared *) iMemory->pointer() : NULL),
-      mIMemory(iMemory), mFront(0)
+NBLog::Reader::Reader(const sp<IMemory>& iMemory, size_t size)
+    : Reader(iMemory != 0 ? (Shared *) iMemory->pointer() : NULL, size)
 {
+    mIMemory = iMemory;
 }
 
-void NBLog::Reader::dump(int fd, size_t indent)
+NBLog::Reader::~Reader()
 {
-    int32_t rear = android_atomic_acquire_load(&mShared->mRear);
-    size_t avail = rear - mFront;
-    if (avail == 0) {
-        return;
+    delete mFifoReader;
+    delete mFifo;
+}
+
+uint8_t *NBLog::Reader::findLastEntryOfType(uint8_t *front, uint8_t *back, uint8_t type) {
+    while (back + Entry::kPreviousLengthOffset >= front) {
+        uint8_t *prev = back - back[Entry::kPreviousLengthOffset] - Entry::kOverhead;
+        if (prev < front || prev + prev[offsetof(FormatEntry::entry, length)] +
+                            Entry::kOverhead != back) {
+
+            // prev points to an out of limits or inconsistent entry
+            return nullptr;
+        }
+        if (prev[offsetof(FormatEntry::entry, type)] == type) {
+            return prev;
+        }
+        back = prev;
     }
-    size_t lost = 0;
-    if (avail > mSize) {
-        lost = avail - mSize;
-        mFront += lost;
-        avail = mSize;
-    }
-    size_t remaining = avail;       // remaining = number of bytes left to read
-    size_t front = mFront & (mSize - 1);
-    size_t read = mSize - front;    // read = number of bytes that have been read so far
-    if (read > remaining) {
-        read = remaining;
+    return nullptr; // no entry found
+}
+
+std::unique_ptr<NBLog::Reader::Snapshot> NBLog::Reader::getSnapshot()
+{
+    if (mFifoReader == NULL) {
+        return std::unique_ptr<NBLog::Reader::Snapshot>(new Snapshot());
     }
     // make a copy to avoid race condition with writer
-    uint8_t *copy = new uint8_t[avail];
-    // copy first part of circular buffer up until the wraparound point
-    memcpy(copy, &mShared->mBuffer[front], read);
-    if (front + read == mSize) {
-        if ((remaining -= read) > 0) {
-            // copy second part of circular buffer starting at beginning
-            memcpy(&copy[read], mShared->mBuffer, remaining);
-            read += remaining;
-            // remaining = 0 but not necessary
+    size_t capacity = mFifo->capacity();
+
+    // This emulates the behaviour of audio_utils_fifo_reader::read, but without incrementing the
+    // reader index. The index is incremented after handling corruption, to after the last complete
+    // entry of the buffer
+    size_t lost;
+    audio_utils_iovec iovec[2];
+    ssize_t availToRead = mFifoReader->obtain(iovec, capacity, NULL /*timeout*/, &lost);
+    if (availToRead <= 0) {
+        return std::unique_ptr<NBLog::Reader::Snapshot>(new Snapshot());
+    }
+
+    std::unique_ptr<Snapshot> snapshot(new Snapshot(availToRead));
+    memcpy(snapshot->mData, (const char *) mFifo->buffer() + iovec[0].mOffset, iovec[0].mLength);
+    if (iovec[1].mLength > 0) {
+        memcpy(snapshot->mData + (iovec[0].mLength),
+            (const char *) mFifo->buffer() + iovec[1].mOffset, iovec[1].mLength);
+    }
+
+    // Handle corrupted buffer
+    // Potentially, a buffer has corrupted data on both beginning (due to overflow) and end
+    // (due to incomplete format entry). But even if the end format entry is incomplete,
+    // it ends in a complete entry (which is not an END_FMT). So is safe to traverse backwards.
+    // TODO: handle client corruption (in the middle of a buffer)
+
+    uint8_t *back = snapshot->mData + availToRead;
+    uint8_t *front = snapshot->mData;
+
+    // Find last END_FMT. <back> is sitting on an entry which might be the middle of a FormatEntry.
+    // We go backwards until we find an EVENT_END_FMT.
+    uint8_t *lastEnd = findLastEntryOfType(front, back, EVENT_END_FMT);
+    if (lastEnd == nullptr) {
+        snapshot->mEnd = snapshot->mBegin = FormatEntry::iterator(front);
+    } else {
+        // end of snapshot points to after last END_FMT entry
+        snapshot->mEnd = FormatEntry::iterator(lastEnd + Entry::kOverhead);
+        // find first START_FMT
+        uint8_t *firstStart = nullptr;
+        uint8_t *firstStartTmp = lastEnd;
+        while ((firstStartTmp = findLastEntryOfType(front, firstStartTmp, EVENT_START_FMT))
+                != nullptr) {
+            firstStart = firstStartTmp;
+        }
+        // firstStart is null if no START_FMT entry was found before lastEnd
+        if (firstStart == nullptr) {
+            snapshot->mBegin = snapshot->mEnd;
+        } else {
+            snapshot->mBegin = FormatEntry::iterator(firstStart);
         }
     }
-    mFront += read;
-    size_t i = avail;
-    Event event;
-    size_t length;
+
+    // advance fifo reader index to after last entry read.
+    mFifoReader->release(snapshot->mEnd - front);
+
+    snapshot->mLost = lost;
+    return snapshot;
+
+}
+
+void NBLog::Reader::dump(int fd, size_t indent, NBLog::Reader::Snapshot &snapshot)
+{
+#if 0
     struct timespec ts;
     time_t maxSec = -1;
-    while (i >= 3) {
-        length = copy[i - 1];
-        if (length + 3 > i || copy[i - length - 2] != length) {
+    while (entry - start >= (int) Entry::kOverhead) {
+        if (prevEntry - start < 0 || !prevEntry.hasConsistentLength()) {
             break;
         }
-        event = (Event) copy[i - length - 3];
-        if (event == EVENT_TIMESTAMP) {
-            if (length != sizeof(struct timespec)) {
+        if (prevEntry->type == EVENT_TIMESTAMP) {
+            if (prevEntry->length != sizeof(struct timespec)) {
                 // corrupt
                 break;
             }
-            memcpy(&ts, &copy[i - length - 1], sizeof(struct timespec));
+            prevEntry.copyData((uint8_t*) &ts);
             if (ts.tv_sec > maxSec) {
                 maxSec = ts.tv_sec;
             }
         }
-        i -= length + 3;
+        --entry;
+        --prevEntry;
     }
+#endif
     mFd = fd;
     mIndent = indent;
     String8 timestamp, body;
-    lost += i;
+    size_t lost = snapshot.lost() + (snapshot.begin() - FormatEntry::iterator(snapshot.data()));
     if (lost > 0) {
         body.appendFormat("warning: lost %zu bytes worth of events", lost);
         // TODO timestamp empty here, only other choice to wait for the first timestamp event in the
         //      log to push it out.  Consider keeping the timestamp/body between calls to readAt().
         dumpLine(timestamp, body);
     }
+#if 0
     size_t width = 1;
     while (maxSec >= 10) {
         ++width;
@@ -357,30 +719,28 @@
         timestamp.appendFormat("[%*s]", (int) width + 4, "");
     }
     bool deferredTimestamp = false;
-    while (i < avail) {
-        event = (Event) copy[i];
-        length = copy[i + 1];
-        const void *data = &copy[i + 2];
-        size_t advance = length + 3;
-        switch (event) {
+#endif
+    for (auto entry = snapshot.begin(); entry != snapshot.end();) {
+        switch (entry->type) {
+#if 0
         case EVENT_STRING:
-            body.appendFormat("%.*s", (int) length, (const char *) data);
+            body.appendFormat("%.*s", (int) entry.length(), entry.data());
             break;
         case EVENT_TIMESTAMP: {
             // already checked that length == sizeof(struct timespec);
-            memcpy(&ts, data, sizeof(struct timespec));
+            entry.copyData((const uint8_t*) &ts);
             long prevNsec = ts.tv_nsec;
             long deltaMin = LONG_MAX;
             long deltaMax = -1;
             long deltaTotal = 0;
-            size_t j = i;
+            auto aux(entry);
             for (;;) {
-                j += sizeof(struct timespec) + 3;
-                if (j >= avail || (Event) copy[j] != EVENT_TIMESTAMP) {
+                ++aux;
+                if (end - aux >= 0 || aux.type() != EVENT_TIMESTAMP) {
                     break;
                 }
                 struct timespec tsNext;
-                memcpy(&tsNext, &copy[j + 2], sizeof(struct timespec));
+                aux.copyData((const uint8_t*) &tsNext);
                 if (tsNext.tv_sec != ts.tv_sec) {
                     break;
                 }
@@ -397,7 +757,7 @@
                 deltaTotal += delta;
                 prevNsec = tsNext.tv_nsec;
             }
-            size_t n = (j - i) / (sizeof(struct timespec) + 3);
+            size_t n = (aux - entry) / (sizeof(struct timespec) + 3 /*Entry::kOverhead?*/);
             if (deferredTimestamp) {
                 dumpLine(timestamp, body);
                 deferredTimestamp = false;
@@ -408,34 +768,58 @@
                         (int) ts.tv_sec, (int) (ts.tv_nsec / 1000000),
                         (int) ((ts.tv_nsec + deltaTotal) / 1000000),
                         (int) (deltaMin / 1000000), (int) (deltaMax / 1000000));
-                i = j;
-                advance = 0;
+                entry = aux;
+                // advance = 0;
                 break;
             }
             timestamp.appendFormat("[%d.%03d]", (int) ts.tv_sec,
                     (int) (ts.tv_nsec / 1000000));
             deferredTimestamp = true;
-            } break;
+            }
+            break;
+        case EVENT_INTEGER:
+            appendInt(&body, entry.data());
+            break;
+        case EVENT_FLOAT:
+            appendFloat(&body, entry.data());
+            break;
+        case EVENT_PID:
+            appendPID(&body, entry.data(), entry.length());
+            break;
+#endif
+        case EVENT_START_FMT:
+            // right now, this is the only supported case
+            entry = handleFormat(FormatEntry(entry), &timestamp, &body);
+            break;
+        case EVENT_END_FMT:
+            body.appendFormat("warning: got to end format event");
+            ++entry;
+            break;
         case EVENT_RESERVED:
         default:
-            body.appendFormat("warning: unknown event %d", event);
+            body.appendFormat("warning: unexpected event %d", entry->type);
+            ++entry;
             break;
         }
-        i += advance;
 
         if (!body.isEmpty()) {
             dumpLine(timestamp, body);
-            deferredTimestamp = false;
+            // deferredTimestamp = false;
         }
     }
-    if (deferredTimestamp) {
-        dumpLine(timestamp, body);
-    }
-    // FIXME it would be more efficient to put a char mCopy[256] as a member variable of the dumper
-    delete[] copy;
+    // if (deferredTimestamp) {
+    //     dumpLine(timestamp, body);
+    // }
 }
 
-void NBLog::Reader::dumpLine(const String8& timestamp, String8& body)
+void NBLog::Reader::dump(int fd, size_t indent)
+{
+    // get a snapshot, dump it
+    std::unique_ptr<Snapshot> snap = getSnapshot();
+    dump(fd, indent, *snap);
+}
+
+void NBLog::Reader::dumpLine(const String8 &timestamp, String8 &body)
 {
     if (mFd >= 0) {
         dprintf(mFd, "%.*s%s %s\n", mIndent, "", timestamp.string(), body.string());
@@ -450,4 +834,235 @@
     return iMemory != 0 && mIMemory != 0 && iMemory->pointer() == mIMemory->pointer();
 }
 
+void NBLog::appendTimestamp(String8 *body, const void *data) {
+    struct timespec ts;
+    memcpy(&ts, data, sizeof(struct timespec));
+    body->appendFormat("[%d.%03d]", (int) ts.tv_sec,
+                    (int) (ts.tv_nsec / 1000000));
+}
+
+void NBLog::appendInt(String8 *body, const void *data) {
+    int x = *((int*) data);
+    body->appendFormat("<%d>", x);
+}
+
+void NBLog::appendFloat(String8 *body, const void *data) {
+    float f;
+    memcpy(&f, data, sizeof(float));
+    body->appendFormat("<%f>", f);
+}
+
+void NBLog::appendPID(String8 *body, const void* data, size_t length) {
+    pid_t id = *((pid_t*) data);
+    char * name = &((char*) data)[sizeof(pid_t)];
+    body->appendFormat("<PID: %d, name: %.*s>", id, (int) (length - sizeof(pid_t)), name);
+}
+
+NBLog::FormatEntry::iterator NBLog::Reader::handleFormat(const FormatEntry &fmtEntry,
+                                                         String8 *timestamp,
+                                                         String8 *body) {
+    // log timestamp
+    struct timespec ts = fmtEntry.timestamp();
+    timestamp->clear();
+    timestamp->appendFormat("[%d.%03d]", (int) ts.tv_sec,
+                    (int) (ts.tv_nsec / 1000000));
+
+    // log author (if present)
+    handleAuthor(fmtEntry, body);
+
+    // log string
+    NBLog::FormatEntry::iterator arg = fmtEntry.args();
+
+    const char* fmt = fmtEntry.formatString();
+    size_t fmt_length = fmtEntry.formatStringLength();
+
+    for (size_t fmt_offset = 0; fmt_offset < fmt_length; ++fmt_offset) {
+        if (fmt[fmt_offset] != '%') {
+            body->append(&fmt[fmt_offset], 1); // TODO optimize to write consecutive strings at once
+            continue;
+        }
+        // case "%%""
+        if (fmt[++fmt_offset] == '%') {
+            body->append("%");
+            continue;
+        }
+        // case "%\0"
+        if (fmt_offset == fmt_length) {
+            continue;
+        }
+
+        NBLog::Event event = (NBLog::Event) arg->type;
+        size_t length = arg->length;
+
+        // TODO check length for event type is correct
+
+        if (event == EVENT_END_FMT) {
+            break;
+        }
+
+        // TODO: implement more complex formatting such as %.3f
+        const uint8_t *datum = arg->data; // pointer to the current event args
+        switch(fmt[fmt_offset])
+        {
+        case 's': // string
+            ALOGW_IF(event != EVENT_STRING,
+                "NBLog Reader incompatible event for string specifier: %d", event);
+            body->append((const char*) datum, length);
+            break;
+
+        case 't': // timestamp
+            ALOGW_IF(event != EVENT_TIMESTAMP,
+                "NBLog Reader incompatible event for timestamp specifier: %d", event);
+            appendTimestamp(body, datum);
+            break;
+
+        case 'd': // integer
+            ALOGW_IF(event != EVENT_INTEGER,
+                "NBLog Reader incompatible event for integer specifier: %d", event);
+            appendInt(body, datum);
+            break;
+
+        case 'f': // float
+            ALOGW_IF(event != EVENT_FLOAT,
+                "NBLog Reader incompatible event for float specifier: %d", event);
+            appendFloat(body, datum);
+            break;
+
+        case 'p': // pid
+            ALOGW_IF(event != EVENT_PID,
+                "NBLog Reader incompatible event for pid specifier: %d", event);
+            appendPID(body, datum, length);
+            break;
+
+        default:
+            ALOGW("NBLog Reader encountered unknown character %c", fmt[fmt_offset]);
+        }
+        ++arg;
+    }
+    ALOGW_IF(arg->type != EVENT_END_FMT, "Expected end of format, got %d", arg->type);
+    ++arg;
+    return arg;
+}
+
+// ---------------------------------------------------------------------------
+
+NBLog::Merger::Merger(const void *shared, size_t size):
+      mBuffer(NULL),
+      mShared((Shared *) shared),
+      mFifo(mShared != NULL ?
+        new audio_utils_fifo(size, sizeof(uint8_t),
+            mShared->mBuffer, mShared->mRear, NULL /*throttlesFront*/) : NULL),
+      mFifoWriter(mFifo != NULL ? new audio_utils_fifo_writer(*mFifo) : NULL)
+      {}
+
+void NBLog::Merger::addReader(const NBLog::NamedReader &reader) {
+    mNamedReaders.push_back(reader);
+}
+
+// items placed in priority queue during merge
+// composed by a timestamp and the index of the snapshot where the timestamp came from
+struct MergeItem
+{
+    struct timespec ts;
+    int index;
+    MergeItem(struct timespec ts, int index): ts(ts), index(index) {}
+};
+
+// operators needed for priority queue in merge
+bool operator>(const struct timespec &t1, const struct timespec &t2) {
+    return t1.tv_sec > t2.tv_sec || (t1.tv_sec == t2.tv_sec && t1.tv_nsec > t2.tv_nsec);
+}
+
+bool operator>(const struct MergeItem &i1, const struct MergeItem &i2) {
+    return i1.ts > i2.ts ||
+        (i1.ts.tv_sec == i2.ts.tv_sec && i1.ts.tv_nsec == i2.ts.tv_nsec && i1.index > i2.index);
+}
+
+// Merge registered readers, sorted by timestamp
+void NBLog::Merger::merge() {
+    int nLogs = mNamedReaders.size();
+    std::vector<std::unique_ptr<NBLog::Reader::Snapshot>> snapshots(nLogs);
+    std::vector<NBLog::FormatEntry::iterator> offsets(nLogs);
+    for (int i = 0; i < nLogs; ++i) {
+        snapshots[i] = mNamedReaders[i].reader()->getSnapshot();
+        offsets[i] = snapshots[i]->begin();
+    }
+    // initialize offsets
+    // TODO custom heap implementation could allow to update top, improving performance
+    // for bursty buffers
+    std::priority_queue<MergeItem, std::vector<MergeItem>, std::greater<MergeItem>> timestamps;
+    for (int i = 0; i < nLogs; ++i)
+    {
+        if (offsets[i] != snapshots[i]->end()) {
+            timespec ts = FormatEntry(offsets[i]).timestamp();
+            timestamps.emplace(ts, i);
+        }
+    }
+
+    while (!timestamps.empty()) {
+        // find minimum timestamp
+        int index = timestamps.top().index;
+        // copy it to the log, increasing offset
+        offsets[index] = FormatEntry(offsets[index]).copyWithAuthor(mFifoWriter, index);
+        // update data structures
+        timestamps.pop();
+        if (offsets[index] != snapshots[index]->end()) {
+            timespec ts = FormatEntry(offsets[index]).timestamp();
+            timestamps.emplace(ts, index);
+        }
+    }
+}
+
+const std::vector<NBLog::NamedReader> *NBLog::Merger::getNamedReaders() const {
+    return &mNamedReaders;
+}
+
+NBLog::MergeReader::MergeReader(const void *shared, size_t size, Merger &merger)
+    : Reader(shared, size), mNamedReaders(merger.getNamedReaders()) {}
+
+size_t NBLog::MergeReader::handleAuthor(const NBLog::FormatEntry &fmtEntry, String8 *body) {
+    int author = fmtEntry.author();
+    const char* name = (*mNamedReaders)[author].name();
+    body->appendFormat("%s: ", name);
+    return NBLog::Entry::kOverhead + sizeof(author);
+}
+
+NBLog::MergeThread::MergeThread(NBLog::Merger &merger)
+    : mMerger(merger),
+      mTimeoutUs(0) {}
+
+NBLog::MergeThread::~MergeThread() {
+    // set exit flag, set timeout to 0 to force threadLoop to exit and wait for the thread to join
+    requestExit();
+    setTimeoutUs(0);
+    join();
+}
+
+bool NBLog::MergeThread::threadLoop() {
+    bool doMerge;
+    {
+        AutoMutex _l(mMutex);
+        // If mTimeoutUs is negative, wait on the condition variable until it's positive.
+        // If it's positive, wait kThreadSleepPeriodUs and then merge
+        nsecs_t waitTime = mTimeoutUs > 0 ? kThreadSleepPeriodUs * 1000 : LLONG_MAX;
+        mCond.waitRelative(mMutex, waitTime);
+        doMerge = mTimeoutUs > 0;
+        mTimeoutUs -= kThreadSleepPeriodUs;
+    }
+    if (doMerge) {
+        mMerger.merge();
+    }
+    return true;
+}
+
+void NBLog::MergeThread::wakeup() {
+    setTimeoutUs(kThreadWakeupPeriodUs);
+}
+
+void NBLog::MergeThread::setTimeoutUs(int time) {
+    AutoMutex _l(mMutex);
+    mTimeoutUs = time;
+    mCond.signal();
+}
+
 }   // namespace android
diff --git a/media/libnbaio/Pipe.cpp b/media/libnbaio/Pipe.cpp
index 13f211d..39df3f4 100644
--- a/media/libnbaio/Pipe.cpp
+++ b/media/libnbaio/Pipe.cpp
@@ -27,9 +27,11 @@
 
 Pipe::Pipe(size_t maxFrames, const NBAIO_Format& format, void *buffer) :
         NBAIO_Sink(format),
+        // TODO fifo now supports non-power-of-2 buffer sizes, so could remove the roundup
         mMaxFrames(roundup(maxFrames)),
         mBuffer(buffer == NULL ? malloc(mMaxFrames * Format_frameSize(format)) : buffer),
-        mRear(0),
+        mFifo(mMaxFrames, Format_frameSize(format), mBuffer, false /*throttlesWriter*/),
+        mFifoWriter(mFifo),
         mReaders(0),
         mFreeBufferInDestructor(buffer == NULL)
 {
@@ -49,25 +51,13 @@
     if (CC_UNLIKELY(!mNegotiated)) {
         return NEGOTIATE;
     }
-    // write() is not multi-thread safe w.r.t. itself, so no mutex or atomic op needed to read mRear
-    size_t rear = mRear & (mMaxFrames - 1);
-    size_t written = mMaxFrames - rear;
-    if (CC_LIKELY(written > count)) {
-        written = count;
+    ssize_t actual = mFifoWriter.write(buffer, count);
+    ALOG_ASSERT(actual <= count);
+    if (actual <= 0) {
+        return actual;
     }
-    memcpy((char *) mBuffer + (rear * mFrameSize), buffer, written * mFrameSize);
-    if (CC_UNLIKELY(rear + written == mMaxFrames)) {
-        if (CC_UNLIKELY((count -= written) > rear)) {
-            count = rear;
-        }
-        if (CC_LIKELY(count > 0)) {
-            memcpy(mBuffer, (char *) buffer + (written * mFrameSize), count * mFrameSize);
-            written += count;
-        }
-    }
-    android_atomic_release_store(written + mRear, &mRear);
-    mFramesWritten += written;
-    return written;
+    mFramesWritten += (size_t) actual;
+    return actual;
 }
 
 }   // namespace android
diff --git a/media/libnbaio/PipeReader.cpp b/media/libnbaio/PipeReader.cpp
index a879647..be5c0c1 100644
--- a/media/libnbaio/PipeReader.cpp
+++ b/media/libnbaio/PipeReader.cpp
@@ -18,6 +18,7 @@
 //#define LOG_NDEBUG 0
 
 #include <cutils/compiler.h>
+#include <cutils/atomic.h>
 #include <utils/Log.h>
 #include <media/nbaio/PipeReader.h>
 
@@ -25,9 +26,7 @@
 
 PipeReader::PipeReader(Pipe& pipe) :
         NBAIO_Source(pipe.mFormat),
-        mPipe(pipe),
-        // any data already in the pipe is not visible to this PipeReader
-        mFront(android_atomic_acquire_load(&pipe.mRear)),
+        mPipe(pipe), mFifoReader(mPipe.mFifo, false /*throttlesWriter*/),
         mFramesOverrun(0),
         mOverruns(0)
 {
@@ -50,51 +49,50 @@
     if (CC_UNLIKELY(!mNegotiated)) {
         return NEGOTIATE;
     }
-    int32_t rear = android_atomic_acquire_load(&mPipe.mRear);
-    // read() is not multi-thread safe w.r.t. itself, so no mutex or atomic op needed to read mFront
-    size_t avail = rear - mFront;
-    if (CC_UNLIKELY(avail > mPipe.mMaxFrames)) {
-        // Discard 1/16 of the most recent data in pipe to avoid another overrun immediately
-        int32_t oldFront = mFront;
-        mFront = rear - mPipe.mMaxFrames + (mPipe.mMaxFrames >> 4);
-        mFramesOverrun += (size_t) (mFront - oldFront);
+    size_t lost;
+    ssize_t avail = mFifoReader.available(&lost);
+    if (avail == -EOVERFLOW || lost > 0) {
+        mFramesOverrun += lost;
         ++mOverruns;
-        return OVERRUN;
+        avail = OVERRUN;
     }
     return avail;
 }
 
 ssize_t PipeReader::read(void *buffer, size_t count)
 {
-    ssize_t avail = availableToRead();
-    if (CC_UNLIKELY(avail <= 0)) {
-        return avail;
+    size_t lost;
+    ssize_t actual = mFifoReader.read(buffer, count, NULL /*timeout*/, &lost);
+    ALOG_ASSERT(actual <= count);
+    if (actual == -EOVERFLOW || lost > 0) {
+        mFramesOverrun += lost;
+        ++mOverruns;
+        actual = OVERRUN;
     }
-    // An overrun can occur from here on and be silently ignored,
-    // but it will be caught at next read()
-    if (CC_LIKELY(count > (size_t) avail)) {
-        count = avail;
+    if (actual <= 0) {
+        return actual;
     }
-    size_t front = mFront & (mPipe.mMaxFrames - 1);
-    size_t red = mPipe.mMaxFrames - front;
-    if (CC_LIKELY(red > count)) {
-        red = count;
+    mFramesRead += (size_t) actual;
+    return actual;
+}
+
+ssize_t PipeReader::flush()
+{
+    if (CC_UNLIKELY(!mNegotiated)) {
+        return NEGOTIATE;
     }
-    // In particular, an overrun during the memcpy will result in reading corrupt data
-    memcpy(buffer, (char *) mPipe.mBuffer + (front * mFrameSize), red * mFrameSize);
-    // We could re-read the rear pointer here to detect the corruption, but why bother?
-    if (CC_UNLIKELY(front + red == mPipe.mMaxFrames)) {
-        if (CC_UNLIKELY((count -= red) > front)) {
-            count = front;
-        }
-        if (CC_LIKELY(count > 0)) {
-            memcpy((char *) buffer + (red * mFrameSize), mPipe.mBuffer, count * mFrameSize);
-            red += count;
-        }
+    size_t lost;
+    ssize_t flushed = mFifoReader.flush(&lost);
+    if (flushed == -EOVERFLOW || lost > 0) {
+        mFramesOverrun += lost;
+        ++mOverruns;
+        flushed = OVERRUN;
     }
-    mFront += red;
-    mFramesRead += red;
-    return red;
+    if (flushed <= 0) {
+        return flushed;
+    }
+    mFramesRead += (size_t) flushed;  // we consider flushed frames as read, but not lost frames
+    return flushed;
 }
 
 }   // namespace android
diff --git a/include/media/nbaio/AudioBufferProviderSource.h b/media/libnbaio/include/AudioBufferProviderSource.h
similarity index 100%
rename from include/media/nbaio/AudioBufferProviderSource.h
rename to media/libnbaio/include/AudioBufferProviderSource.h
diff --git a/media/libnbaio/include/AudioStreamInSource.h b/media/libnbaio/include/AudioStreamInSource.h
new file mode 100644
index 0000000..508e0fe
--- /dev/null
+++ b/media/libnbaio/include/AudioStreamInSource.h
@@ -0,0 +1,66 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_AUDIO_STREAM_IN_SOURCE_H
+#define ANDROID_AUDIO_STREAM_IN_SOURCE_H
+
+#include "NBAIO.h"
+
+namespace android {
+
+class StreamInHalInterface;
+
+// not multi-thread safe
+class AudioStreamInSource : public NBAIO_Source {
+
+public:
+    AudioStreamInSource(sp<StreamInHalInterface> stream);
+    virtual ~AudioStreamInSource();
+
+    // NBAIO_Port interface
+
+    virtual ssize_t negotiate(const NBAIO_Format offers[], size_t numOffers,
+                              NBAIO_Format counterOffers[], size_t& numCounterOffers);
+    //virtual NBAIO_Format format() const;
+
+    // NBAIO_Sink interface
+
+    //virtual size_t framesRead() const;
+    virtual int64_t framesOverrun();
+    virtual int64_t overruns() { (void) framesOverrun(); return mOverruns; }
+
+    // This is an over-estimate, and could dupe the caller into making a blocking read()
+    // FIXME Use an audio HAL API to query the buffer filling status when it's available.
+    virtual ssize_t availableToRead() { return mStreamBufferSizeBytes / mFrameSize; }
+
+    virtual ssize_t read(void *buffer, size_t count);
+
+    // NBAIO_Sink end
+
+#if 0   // until necessary
+    sp<StreamInHalInterface> stream() const { return mStream; }
+#endif
+
+private:
+    sp<StreamInHalInterface> mStream;
+    size_t              mStreamBufferSizeBytes; // as reported by get_buffer_size()
+    int64_t             mFramesOverrun;
+    int64_t             mOverruns;
+};
+
+}   // namespace android
+
+#endif  // ANDROID_AUDIO_STREAM_IN_SOURCE_H
diff --git a/media/libnbaio/include/AudioStreamOutSink.h b/media/libnbaio/include/AudioStreamOutSink.h
new file mode 100644
index 0000000..56a2a38
--- /dev/null
+++ b/media/libnbaio/include/AudioStreamOutSink.h
@@ -0,0 +1,66 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_AUDIO_STREAM_OUT_SINK_H
+#define ANDROID_AUDIO_STREAM_OUT_SINK_H
+
+#include "NBAIO.h"
+
+namespace android {
+
+class StreamOutHalInterface;
+
+// not multi-thread safe
+class AudioStreamOutSink : public NBAIO_Sink {
+
+public:
+    AudioStreamOutSink(sp<StreamOutHalInterface> stream);
+    virtual ~AudioStreamOutSink();
+
+    // NBAIO_Port interface
+
+    virtual ssize_t negotiate(const NBAIO_Format offers[], size_t numOffers,
+                              NBAIO_Format counterOffers[], size_t& numCounterOffers);
+    //virtual NBAIO_Format format();
+
+    // NBAIO_Sink interface
+
+    //virtual size_t framesWritten() const;
+    //virtual size_t framesUnderrun() const;
+    //virtual size_t underruns() const;
+
+    // This is an over-estimate, and could dupe the caller into making a blocking write()
+    // FIXME Use an audio HAL API to query the buffer emptying status when it's available.
+    virtual ssize_t availableToWrite() { return mStreamBufferSizeBytes / mFrameSize; }
+
+    virtual ssize_t write(const void *buffer, size_t count);
+
+    virtual status_t getTimestamp(ExtendedTimestamp &timestamp);
+
+    // NBAIO_Sink end
+
+#if 0   // until necessary
+    sp<StreamOutHalInterface> stream() const { return mStream; }
+#endif
+
+private:
+    sp<StreamOutHalInterface> mStream;
+    size_t              mStreamBufferSizeBytes; // as reported by get_buffer_size()
+};
+
+}   // namespace android
+
+#endif  // ANDROID_AUDIO_STREAM_OUT_SINK_H
diff --git a/media/libnbaio/include/LibsndfileSink.h b/media/libnbaio/include/LibsndfileSink.h
new file mode 100644
index 0000000..97a57e0
--- /dev/null
+++ b/media/libnbaio/include/LibsndfileSink.h
@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_AUDIO_LIBSNDFILE_SINK_H
+#define ANDROID_AUDIO_LIBSNDFILE_SINK_H
+
+#include "NBAIO.h"
+#include "sndfile.h"
+
+// Implementation of NBAIO_Sink that wraps a libsndfile opened in SFM_WRITE mode
+
+namespace android {
+
+class LibsndfileSink : public NBAIO_Sink {
+
+public:
+    LibsndfileSink(SNDFILE *sndfile, const SF_INFO &sfinfo);
+    virtual ~LibsndfileSink();
+
+    // NBAIO_Port interface
+
+    //virtual ssize_t negotiate(const NBAIO_Format offers[], size_t numOffers,
+    //                          NBAIO_Format counterOffers[], size_t& numCounterOffers);
+    //virtual NBAIO_Format format() const;
+
+    // NBAIO_Sink interface
+
+    //virtual size_t framesWritten() const;
+    //virtual size_t framesUnderrun() const;
+    //virtual size_t underruns() const;
+    //virtual ssize_t availableToWrite();
+    virtual ssize_t write(const void *buffer, size_t count);
+    //virtual ssize_t writeVia(writeVia_t via, size_t total, void *user, size_t block);
+
+private:
+    SNDFILE *                   mSndfile;
+};
+
+}   // namespace android
+
+#endif  // ANDROID_AUDIO_LIBSNDFILE_SINK_H
diff --git a/include/media/nbaio/LibsndfileSource.h b/media/libnbaio/include/LibsndfileSource.h
similarity index 100%
rename from include/media/nbaio/LibsndfileSource.h
rename to media/libnbaio/include/LibsndfileSource.h
diff --git a/media/libnbaio/include/MonoPipe.h b/media/libnbaio/include/MonoPipe.h
new file mode 100644
index 0000000..60ae92e
--- /dev/null
+++ b/media/libnbaio/include/MonoPipe.h
@@ -0,0 +1,105 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_AUDIO_MONO_PIPE_H
+#define ANDROID_AUDIO_MONO_PIPE_H
+
+#include <time.h>
+#include <audio_utils/fifo.h>
+#include <media/SingleStateQueue.h>
+#include "NBAIO.h"
+
+namespace android {
+
+typedef SingleStateQueue<ExtendedTimestamp> ExtendedTimestampSingleStateQueue;
+
+// MonoPipe is similar to Pipe except:
+//  - supports only a single reader, called MonoPipeReader
+//  - write() cannot overrun; instead it will return a short actual count if insufficient space
+//  - write() can optionally block if the pipe is full
+// Like Pipe, it is not multi-thread safe for either writer or reader
+// but writer and reader can be different threads.
+class MonoPipe : public NBAIO_Sink {
+
+    friend class MonoPipeReader;
+
+public:
+    // reqFrames will be rounded up to a power of 2, and all slots are available. Must be >= 2.
+    // Note: whatever shares this object with another thread needs to do so in an SMP-safe way (like
+    // creating it the object before creating the other thread, or storing the object with a
+    // release_store). Otherwise the other thread could see a partially-constructed object.
+    MonoPipe(size_t reqFrames, const NBAIO_Format& format, bool writeCanBlock = false);
+    virtual ~MonoPipe();
+
+    // NBAIO_Port interface
+
+    //virtual ssize_t negotiate(const NBAIO_Format offers[], size_t numOffers,
+    //                          NBAIO_Format counterOffers[], size_t& numCounterOffers);
+    //virtual NBAIO_Format format() const;
+
+    // NBAIO_Sink interface
+
+    //virtual int64_t framesWritten() const;
+    //virtual int64_t framesUnderrun() const;
+    //virtual int64_t underruns() const;
+
+    // returns n where 0 <= n <= mMaxFrames, or a negative status_t
+    // including the private status codes in NBAIO.h
+    virtual ssize_t availableToWrite();
+
+    virtual ssize_t write(const void *buffer, size_t count);
+    //virtual ssize_t writeVia(writeVia_t via, size_t total, void *user, size_t block);
+
+            // average number of frames present in the pipe under normal conditions.
+            // See throttling mechanism in MonoPipe::write()
+            size_t  getAvgFrames() const { return mSetpoint; }
+            void    setAvgFrames(size_t setpoint);
+            size_t  maxFrames() const { return mMaxFrames; }
+
+            // Set the shutdown state for the write side of a pipe.
+            // This may be called by an unrelated thread.  When shutdown state is 'true',
+            // a write that would otherwise block instead returns a short transfer count.
+            // There is no guarantee how long it will take for the shutdown to be recognized,
+            // but it will not be an unbounded amount of time.
+            // The state can be restored to normal by calling shutdown(false).
+            void    shutdown(bool newState = true);
+
+            // Return true if the write side of a pipe is currently shutdown.
+            bool    isShutdown();
+
+            // Return NO_ERROR if there is a timestamp available
+            status_t getTimestamp(ExtendedTimestamp &timestamp);
+
+private:
+    const size_t    mMaxFrames;     // as requested in constructor, rounded up to a power of 2
+    void * const    mBuffer;
+    audio_utils_fifo        mFifo;
+    audio_utils_fifo_writer mFifoWriter;
+    bool            mWriteTsValid;  // whether mWriteTs is valid
+    struct timespec mWriteTs;       // time that the previous write() completed
+    size_t          mSetpoint;      // target value for pipe fill depth
+    const bool      mWriteCanBlock; // whether write() should block if the pipe is full
+
+    bool            mIsShutdown;    // whether shutdown(true) was called, no barriers are needed
+
+    ExtendedTimestampSingleStateQueue::Shared      mTimestampShared;
+    ExtendedTimestampSingleStateQueue::Mutator     mTimestampMutator;
+    ExtendedTimestampSingleStateQueue::Observer    mTimestampObserver;
+};
+
+}   // namespace android
+
+#endif  // ANDROID_AUDIO_MONO_PIPE_H
diff --git a/media/libnbaio/include/MonoPipeReader.h b/media/libnbaio/include/MonoPipeReader.h
new file mode 100644
index 0000000..0776ecd
--- /dev/null
+++ b/media/libnbaio/include/MonoPipeReader.h
@@ -0,0 +1,67 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_AUDIO_MONO_PIPE_READER_H
+#define ANDROID_AUDIO_MONO_PIPE_READER_H
+
+#include "MonoPipe.h"
+
+namespace android {
+
+// MonoPipeReader is safe for only a single reader thread
+class MonoPipeReader : public NBAIO_Source {
+
+public:
+
+    // Construct a MonoPipeReader and associate it with a MonoPipe;
+    // any data already in the pipe is visible to this MonoPipeReader.
+    // There can be only a single MonoPipeReader per MonoPipe.
+    // FIXME make this constructor a factory method of MonoPipe.
+    MonoPipeReader(MonoPipe* pipe);
+    virtual ~MonoPipeReader();
+
+    // NBAIO_Port interface
+
+    //virtual ssize_t negotiate(const NBAIO_Format offers[], size_t numOffers,
+    //                          NBAIO_Format counterOffers[], size_t& numCounterOffers);
+    //virtual NBAIO_Format format() const;
+
+    // NBAIO_Source interface
+
+    //virtual size_t framesRead() const;
+    //virtual size_t framesOverrun();
+    //virtual size_t overruns();
+
+    virtual ssize_t availableToRead();
+
+    virtual ssize_t read(void *buffer, size_t count);
+
+    virtual void    onTimestamp(const ExtendedTimestamp &timestamp);
+
+    // NBAIO_Source end
+
+#if 0   // until necessary
+    MonoPipe* pipe() const { return mPipe; }
+#endif
+
+private:
+    MonoPipe * const mPipe;
+    audio_utils_fifo_reader mFifoReader;
+};
+
+}   // namespace android
+
+#endif  // ANDROID_AUDIO_MONO_PIPE_READER_H
diff --git a/media/libnbaio/include/NBAIO.h b/media/libnbaio/include/NBAIO.h
new file mode 100644
index 0000000..f8ec38b
--- /dev/null
+++ b/media/libnbaio/include/NBAIO.h
@@ -0,0 +1,334 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_AUDIO_NBAIO_H
+#define ANDROID_AUDIO_NBAIO_H
+
+// Non-blocking audio I/O interface
+//
+// This header file has the abstract interfaces only.  Concrete implementation classes are declared
+// elsewhere.  Implementations _should_ be non-blocking for all methods, especially read() and
+// write(), but this is not enforced.  In general, implementations do not need to be multi-thread
+// safe, and any exceptions are noted in the particular implementation.
+
+#include <limits.h>
+#include <stdlib.h>
+#include <utils/Errors.h>
+#include <utils/RefBase.h>
+#include <media/AudioTimestamp.h>
+#include <system/audio.h>
+
+namespace android {
+
+// In addition to the usual status_t
+enum {
+    NEGOTIATE    = (UNKNOWN_ERROR + 0x100),  // Must (re-)negotiate format.  For negotiate() only,
+                                             // the offeree doesn't accept offers, and proposes
+                                             // counter-offers
+    OVERRUN      = (UNKNOWN_ERROR + 0x101),  // availableToRead(), read(), or readVia() detected
+                                             // lost input due to overrun; an event is counted and
+                                             // the caller should re-try
+    UNDERRUN     = (UNKNOWN_ERROR + 0x102),  // availableToWrite(), write(), or writeVia() detected
+                                             // a gap in output due to underrun (not being called
+                                             // often enough, or with enough data); an event is
+                                             // counted and the caller should re-try
+};
+
+// Negotiation of format is based on the data provider and data sink, or the data consumer and
+// data source, exchanging prioritized arrays of offers and counter-offers until a single offer is
+// mutually agreed upon.  Each offer is an NBAIO_Format.  For simplicity and performance,
+// NBAIO_Format is a typedef that ties together the most important combinations of the various
+// attributes, rather than a struct with separate fields for format, sample rate, channel count,
+// interleave, packing, alignment, etc.  The reason is that NBAIO_Format tries to abstract out only
+// the combinations that are actually needed within AudioFlinger.  If the list of combinations grows
+// too large, then this decision should be re-visited.
+// Sample rate and channel count are explicit, PCM interleaved 16-bit is assumed.
+struct NBAIO_Format {
+// FIXME make this a class, and change Format_... global methods to class methods
+//private:
+    unsigned    mSampleRate;
+    unsigned    mChannelCount;
+    audio_format_t  mFormat;
+    size_t      mFrameSize;
+};
+
+extern const NBAIO_Format Format_Invalid;
+
+// Return the frame size of an NBAIO_Format in bytes
+size_t Format_frameSize(const NBAIO_Format& format);
+
+// Convert a sample rate in Hz and channel count to an NBAIO_Format
+// FIXME rename
+NBAIO_Format Format_from_SR_C(unsigned sampleRate, unsigned channelCount, audio_format_t format);
+
+// Return the sample rate in Hz of an NBAIO_Format
+unsigned Format_sampleRate(const NBAIO_Format& format);
+
+// Return the channel count of an NBAIO_Format
+unsigned Format_channelCount(const NBAIO_Format& format);
+
+// Callbacks used by NBAIO_Sink::writeVia() and NBAIO_Source::readVia() below.
+typedef ssize_t (*writeVia_t)(void *user, void *buffer, size_t count);
+typedef ssize_t (*readVia_t)(void *user, const void *buffer, size_t count);
+
+// Check whether an NBAIO_Format is valid
+bool Format_isValid(const NBAIO_Format& format);
+
+// Compare two NBAIO_Format values
+bool Format_isEqual(const NBAIO_Format& format1, const NBAIO_Format& format2);
+
+// Abstract class (interface) representing a data port.
+class NBAIO_Port : public RefBase {
+
+public:
+
+    // negotiate() must called first.  The purpose of negotiate() is to check compatibility of
+    // formats, not to automatically adapt if they are incompatible.  It's the responsibility of
+    // whoever sets up the graph connections to make sure formats are compatible, and this method
+    // just verifies that.  The edges are "dumb" and don't attempt to adapt to bad connections.
+    // How it works: offerer proposes an array of formats, in descending order of preference from
+    // offers[0] to offers[numOffers - 1].  If offeree accepts one of these formats, it returns
+    // the index of that offer.  Otherwise, offeree sets numCounterOffers to the number of
+    // counter-offers (up to a maximumum of the entry value of numCounterOffers), fills in the
+    // provided array counterOffers[] with its counter-offers, in descending order of preference
+    // from counterOffers[0] to counterOffers[numCounterOffers - 1], and returns NEGOTIATE.
+    // Note that since the offerer allocates space for counter-offers, but only the offeree knows
+    // how many counter-offers it has, there may be insufficient space for all counter-offers.
+    // In that case, the offeree sets numCounterOffers to the requested number of counter-offers
+    // (which is greater than the entry value of numCounterOffers), fills in as many of the most
+    // important counterOffers as will fit, and returns NEGOTIATE.  As this implies a re-allocation,
+    // it should be used as a last resort.  It is preferable for the offerer to simply allocate a
+    // larger space to begin with, and/or for the offeree to tolerate a smaller space than desired.
+    // Alternatively, the offerer can pass NULL for offers and counterOffers, and zero for
+    // numOffers. This indicates that it has not allocated space for any counter-offers yet.
+    // In this case, the offerree should set numCounterOffers appropriately and return NEGOTIATE.
+    // Then the offerer will allocate the correct amount of memory and retry.
+    // Format_Invalid is not allowed as either an offer or counter-offer.
+    // Returns:
+    //  >= 0        Offer accepted.
+    //  NEGOTIATE   No offer accepted, and counter-offer(s) optionally made. See above for details.
+    virtual ssize_t negotiate(const NBAIO_Format offers[], size_t numOffers,
+                              NBAIO_Format counterOffers[], size_t& numCounterOffers);
+
+    // Return the current negotiated format, or Format_Invalid if negotiation has not been done,
+    // or if re-negotiation is required.
+    virtual NBAIO_Format format() const { return mNegotiated ? mFormat : Format_Invalid; }
+
+protected:
+    NBAIO_Port(const NBAIO_Format& format) : mNegotiated(false), mFormat(format),
+                                             mFrameSize(Format_frameSize(format)) { }
+    virtual ~NBAIO_Port() { }
+
+    // Implementations are free to ignore these if they don't need them
+
+    bool            mNegotiated;    // mNegotiated implies (mFormat != Format_Invalid)
+    NBAIO_Format    mFormat;        // (mFormat != Format_Invalid) does not imply mNegotiated
+    size_t          mFrameSize;     // assign in parallel with any assignment to mFormat
+};
+
+// Abstract class (interface) representing a non-blocking data sink, for use by a data provider.
+class NBAIO_Sink : public NBAIO_Port {
+
+public:
+
+    // For the next two APIs:
+    // 32 bits rolls over after 27 hours at 44.1 kHz; if that concerns you then poll periodically.
+
+    // Return the number of frames written successfully since construction.
+    virtual int64_t framesWritten() const { return mFramesWritten; }
+
+    // Number of frames lost due to underrun since construction.
+    virtual int64_t framesUnderrun() const { return 0; }
+
+    // Number of underruns since construction, where a set of contiguous lost frames is one event.
+    virtual int64_t underruns() const { return 0; }
+
+    // Estimate of number of frames that could be written successfully now without blocking.
+    // When a write() is actually attempted, the implementation is permitted to return a smaller or
+    // larger transfer count, however it will make a good faith effort to give an accurate estimate.
+    // Errors:
+    //  NEGOTIATE   (Re-)negotiation is needed.
+    //  UNDERRUN    write() has not been called frequently enough, or with enough frames to keep up.
+    //              An underrun event is counted, and the caller should re-try this operation.
+    //  WOULD_BLOCK Determining how many frames can be written without blocking would itself block.
+    virtual ssize_t availableToWrite() {
+        if (!mNegotiated) {
+            return NEGOTIATE;
+        }
+        return SSIZE_MAX;
+    }
+
+    // Transfer data to sink from single input buffer.  Implies a copy.
+    // Inputs:
+    //  buffer  Non-NULL buffer owned by provider.
+    //  count   Maximum number of frames to transfer.
+    // Return value:
+    //  > 0     Number of frames successfully transferred prior to first error.
+    //  = 0     Count was zero.
+    //  < 0     status_t error occurred prior to the first frame transfer.
+    // Errors:
+    //  NEGOTIATE   (Re-)negotiation is needed.
+    //  WOULD_BLOCK No frames can be transferred without blocking.
+    //  UNDERRUN    write() has not been called frequently enough, or with enough frames to keep up.
+    //              An underrun event is counted, and the caller should re-try this operation.
+    virtual ssize_t write(const void *buffer, size_t count) = 0;
+
+    // Transfer data to sink using a series of callbacks.  More suitable for zero-fill, synthesis,
+    // and non-contiguous transfers (e.g. circular buffer or writev).
+    // Inputs:
+    //  via     Callback function that the sink will call as many times as needed to consume data.
+    //  total   Estimate of the number of frames the provider has available.  This is an estimate,
+    //          and it can provide a different number of frames during the series of callbacks.
+    //  user    Arbitrary void * reserved for data provider.
+    //  block   Number of frames per block, that is a suggested value for 'count' in each callback.
+    //          Zero means no preference.  This parameter is a hint only, and may be ignored.
+    // Return value:
+    //  > 0     Total number of frames successfully transferred prior to first error.
+    //  = 0     Count was zero.
+    //  < 0     status_t error occurred prior to the first frame transfer.
+    // Errors:
+    //  NEGOTIATE   (Re-)negotiation is needed.
+    //  WOULD_BLOCK No frames can be transferred without blocking.
+    //  UNDERRUN    write() has not been called frequently enough, or with enough frames to keep up.
+    //              An underrun event is counted, and the caller should re-try this operation.
+    //
+    // The 'via' callback is called by the data sink as follows:
+    // Inputs:
+    //  user    Arbitrary void * reserved for data provider.
+    //  buffer  Non-NULL buffer owned by sink that callback should fill in with data,
+    //          up to a maximum of 'count' frames.
+    //  count   Maximum number of frames to transfer during this callback.
+    // Return value:
+    //  > 0     Number of frames successfully transferred during this callback prior to first error.
+    //  = 0     Count was zero.
+    //  < 0     status_t error occurred prior to the first frame transfer during this callback.
+    virtual ssize_t writeVia(writeVia_t via, size_t total, void *user, size_t block = 0);
+
+    // Returns NO_ERROR if a timestamp is available.  The timestamp includes the total number
+    // of frames presented to an external observer, together with the value of CLOCK_MONOTONIC
+    // as of this presentation count.  The timestamp parameter is undefined if error is returned.
+    virtual status_t getTimestamp(ExtendedTimestamp& /*timestamp*/) { return INVALID_OPERATION; }
+
+protected:
+    NBAIO_Sink(const NBAIO_Format& format = Format_Invalid) : NBAIO_Port(format), mFramesWritten(0)
+            { }
+    virtual ~NBAIO_Sink() { }
+
+    // Implementations are free to ignore these if they don't need them
+    int64_t  mFramesWritten;
+};
+
+// Abstract class (interface) representing a non-blocking data source, for use by a data consumer.
+class NBAIO_Source : public NBAIO_Port {
+
+public:
+
+    // For the next two APIs:
+    // 32 bits rolls over after 27 hours at 44.1 kHz; if that concerns you then poll periodically.
+
+    // Number of frames read successfully since construction.
+    virtual int64_t framesRead() const { return mFramesRead; }
+
+    // Number of frames lost due to overrun since construction.
+    // Not const because implementations may need to do I/O.
+    virtual int64_t framesOverrun() /*const*/ { return 0; }
+
+    // Number of overruns since construction, where a set of contiguous lost frames is one event.
+    // Not const because implementations may need to do I/O.
+    virtual int64_t overruns() /*const*/ { return 0; }
+
+    // Estimate of number of frames that could be read successfully now.
+    // When a read() is actually attempted, the implementation is permitted to return a smaller or
+    // larger transfer count, however it will make a good faith effort to give an accurate estimate.
+    // Errors:
+    //  NEGOTIATE   (Re-)negotiation is needed.
+    //  OVERRUN     One or more frames were lost due to overrun, try again to read more recent data.
+    //  WOULD_BLOCK Determining how many frames can be read without blocking would itself block.
+    virtual ssize_t availableToRead() { return SSIZE_MAX; }
+
+    // Transfer data from source into single destination buffer.  Implies a copy.
+    // Inputs:
+    //  buffer  Non-NULL destination buffer owned by consumer.
+    //  count   Maximum number of frames to transfer.
+    // Return value:
+    //  > 0     Number of frames successfully transferred prior to first error.
+    //  = 0     Count was zero.
+    //  < 0     status_t error occurred prior to the first frame transfer.
+    // Errors:
+    //  NEGOTIATE   (Re-)negotiation is needed.
+    //  WOULD_BLOCK No frames can be transferred without blocking.
+    //  OVERRUN     read() has not been called frequently enough, or with enough frames to keep up.
+    //              One or more frames were lost due to overrun, try again to read more recent data.
+    virtual ssize_t read(void *buffer, size_t count) = 0;
+
+    // Flush data from buffer.  There is no notion of overrun as all data is dropped.
+    // Flushed frames also count towards frames read.
+    //
+    // Return value:
+    //  >= 0    Number of frames successfully flushed
+    //  < 0     status_t error occurred
+    // Errors:
+    //  NEGOTIATE         (Re-)negotiation is needed.
+    //  INVALID_OPERATION Not implemented
+    virtual ssize_t flush() { return INVALID_OPERATION; }
+
+    // Transfer data from source using a series of callbacks.  More suitable for zero-fill,
+    // synthesis, and non-contiguous transfers (e.g. circular buffer or readv).
+    // Inputs:
+    //  via     Callback function that the source will call as many times as needed to provide data.
+    //  total   Estimate of the number of frames the consumer desires.  This is an estimate,
+    //          and it can consume a different number of frames during the series of callbacks.
+    //  user    Arbitrary void * reserved for data consumer.
+    //  block   Number of frames per block, that is a suggested value for 'count' in each callback.
+    //          Zero means no preference.  This parameter is a hint only, and may be ignored.
+    // Return value:
+    //  > 0     Total number of frames successfully transferred prior to first error.
+    //  = 0     Count was zero.
+    //  < 0     status_t error occurred prior to the first frame transfer.
+    // Errors:
+    //  NEGOTIATE   (Re-)negotiation is needed.
+    //  WOULD_BLOCK No frames can be transferred without blocking.
+    //  OVERRUN     read() has not been called frequently enough, or with enough frames to keep up.
+    //              One or more frames were lost due to overrun, try again to read more recent data.
+    //
+    // The 'via' callback is called by the data source as follows:
+    // Inputs:
+    //  user    Arbitrary void * reserved for data consumer.
+    //  dest    Non-NULL buffer owned by source that callback should consume data from,
+    //          up to a maximum of 'count' frames.
+    //  count   Maximum number of frames to transfer during this callback.
+    // Return value:
+    //  > 0     Number of frames successfully transferred during this callback prior to first error.
+    //  = 0     Count was zero.
+    //  < 0     status_t error occurred prior to the first frame transfer during this callback.
+    virtual ssize_t readVia(readVia_t via, size_t total, void *user, size_t block = 0);
+
+    // Invoked asynchronously by corresponding sink when a new timestamp is available.
+    // Default implementation ignores the timestamp.
+    virtual void    onTimestamp(const ExtendedTimestamp& /*timestamp*/) { }
+
+protected:
+    NBAIO_Source(const NBAIO_Format& format = Format_Invalid) : NBAIO_Port(format), mFramesRead(0)
+            { }
+    virtual ~NBAIO_Source() { }
+
+    // Implementations are free to ignore these if they don't need them
+    int64_t  mFramesRead;
+};
+
+}   // namespace android
+
+#endif  // ANDROID_AUDIO_NBAIO_H
diff --git a/media/libnbaio/include/NBLog.h b/media/libnbaio/include/NBLog.h
new file mode 100644
index 0000000..7aaf298
--- /dev/null
+++ b/media/libnbaio/include/NBLog.h
@@ -0,0 +1,484 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// Non-blocking event logger intended for safe communication between processes via shared memory
+
+#ifndef ANDROID_MEDIA_NBLOG_H
+#define ANDROID_MEDIA_NBLOG_H
+
+#include <binder/IMemory.h>
+#include <audio_utils/fifo.h>
+#include <utils/Mutex.h>
+#include <utils/threads.h>
+
+#include <vector>
+
+namespace android {
+
+class String8;
+
+class NBLog {
+
+public:
+
+class Writer;
+class Reader;
+
+private:
+
+enum Event {
+    EVENT_RESERVED,
+    EVENT_STRING,               // ASCII string, not NUL-terminated
+    // TODO: make timestamp optional
+    EVENT_TIMESTAMP,            // clock_gettime(CLOCK_MONOTONIC)
+    EVENT_INTEGER,              // integer value entry
+    EVENT_FLOAT,                // floating point value entry
+    EVENT_PID,                  // process ID and process name
+    EVENT_AUTHOR,               // author index (present in merged logs) tracks entry's original log
+    EVENT_START_FMT,            // logFormat start event: entry includes format string, following
+                                // entries contain format arguments
+    EVENT_END_FMT,              // end of logFormat argument list
+};
+
+
+// ---------------------------------------------------------------------------
+// API for handling format entry operations
+
+// a formatted entry has the following structure:
+//    * START_FMT entry, containing the format string
+//    * author entry of the thread that generated it (optional, present in merged log)
+//    * TIMESTAMP entry
+//    * format arg1
+//    * format arg2
+//    * ...
+//    * END_FMT entry
+
+class FormatEntry {
+public:
+    // build a Format Entry starting in the given pointer
+    class iterator;
+    explicit FormatEntry(const uint8_t *entry);
+    explicit FormatEntry(const iterator &it);
+
+    // entry representation in memory
+    struct entry {
+        const uint8_t type;
+        const uint8_t length;
+        const uint8_t data[0];
+    };
+
+    // entry tail representation (after data)
+    struct ending {
+        uint8_t length;
+        uint8_t next[0];
+    };
+
+    // entry iterator
+    class iterator {
+    public:
+        iterator();
+        iterator(const uint8_t *entry);
+        iterator(const iterator &other);
+
+        // dereference underlying entry
+        const entry&    operator*() const;
+        const entry*    operator->() const;
+        // advance to next entry
+        iterator&       operator++(); // ++i
+        // back to previous entry
+        iterator&       operator--(); // --i
+        iterator        next() const;
+        iterator        prev() const;
+        bool            operator!=(const iterator &other) const;
+        int             operator-(const iterator &other) const;
+
+        bool            hasConsistentLength() const;
+        void            copyTo(std::unique_ptr<audio_utils_fifo_writer> &dst) const;
+        void            copyData(uint8_t *dst) const;
+
+        template<typename T>
+        inline const T& payload() {
+            return *reinterpret_cast<const T *>(ptr + offsetof(entry, data));
+        }
+
+    private:
+        friend class FormatEntry;
+        const uint8_t  *ptr;
+    };
+
+    // Entry's format string
+    const char* formatString() const;
+
+    // Enrty's format string length
+    size_t      formatStringLength() const;
+
+    // Format arguments (excluding format string, timestamp and author)
+    iterator    args() const;
+
+    // get format entry timestamp
+    timespec    timestamp() const;
+
+    // entry's author index (-1 if none present)
+    // a Merger has a vector of Readers, author simply points to the index of the
+    // Reader that originated the entry
+    int         author() const;
+
+    // copy entry, adding author before timestamp, returns size of original entry
+    iterator    copyWithAuthor(std::unique_ptr<audio_utils_fifo_writer> &dst, int author) const;
+
+    iterator    begin() const;
+
+private:
+    // copies ordinary entry from src to dst, and returns length of entry
+    // size_t      copyEntry(audio_utils_fifo_writer *dst, const iterator &it);
+    const uint8_t  *mEntry;
+};
+
+// ---------------------------------------------------------------------------
+
+// representation of a single log entry in private memory
+struct Entry {
+    Entry(Event event, const void *data, size_t length)
+        : mEvent(event), mLength(length), mData(data) { }
+    /*virtual*/ ~Entry() { }
+
+    int     readAt(size_t offset) const;
+
+private:
+    friend class Writer;
+    Event       mEvent;     // event type
+    uint8_t     mLength;    // length of additional data, 0 <= mLength <= kMaxLength
+    const void *mData;      // event type-specific data
+    static const size_t kMaxLength = 255;
+public:
+    // mEvent, mLength, mData[...], duplicate mLength
+    static const size_t kOverhead = sizeof(FormatEntry::entry) + sizeof(FormatEntry::ending);
+    // endind length of previous entry
+    static const size_t kPreviousLengthOffset = - sizeof(FormatEntry::ending) +
+                                                offsetof(FormatEntry::ending, length);
+};
+
+// representation of a single log entry in shared memory
+//  byte[0]             mEvent
+//  byte[1]             mLength
+//  byte[2]             mData[0]
+//  ...
+//  byte[2+i]           mData[i]
+//  ...
+//  byte[2+mLength-1]   mData[mLength-1]
+//  byte[2+mLength]     duplicate copy of mLength to permit reverse scan
+//  byte[3+mLength]     start of next log entry
+
+    static void    appendInt(String8 *body, const void *data);
+    static void    appendFloat(String8 *body, const void *data);
+    static void    appendPID(String8 *body, const void *data, size_t length);
+    static void    appendTimestamp(String8 *body, const void *data);
+    static size_t  fmtEntryLength(const uint8_t *data);
+
+public:
+
+// Located in shared memory, must be POD.
+// Exactly one process must explicitly call the constructor or use placement new.
+// Since this is a POD, the destructor is empty and unnecessary to call it explicitly.
+struct Shared {
+    Shared() /* mRear initialized via default constructor */ { }
+    /*virtual*/ ~Shared() { }
+
+    audio_utils_fifo_index  mRear;  // index one byte past the end of most recent Entry
+    char    mBuffer[0];             // circular buffer for entries
+};
+
+public:
+
+// ---------------------------------------------------------------------------
+
+// FIXME Timeline was intended to wrap Writer and Reader, but isn't actually used yet.
+// For now it is just a namespace for sharedSize().
+class Timeline : public RefBase {
+public:
+#if 0
+    Timeline(size_t size, void *shared = NULL);
+    virtual ~Timeline();
+#endif
+
+    // Input parameter 'size' is the desired size of the timeline in byte units.
+    // Returns the size rounded up to a power-of-2, plus the constant size overhead for indices.
+    static size_t sharedSize(size_t size);
+
+#if 0
+private:
+    friend class    Writer;
+    friend class    Reader;
+
+    const size_t    mSize;      // circular buffer size in bytes, must be a power of 2
+    bool            mOwn;       // whether I own the memory at mShared
+    Shared* const   mShared;    // pointer to shared memory
+#endif
+};
+
+// ---------------------------------------------------------------------------
+
+// Writer is thread-safe with respect to Reader, but not with respect to multiple threads
+// calling Writer methods.  If you need multi-thread safety for writing, use LockedWriter.
+class Writer : public RefBase {
+public:
+    Writer();                   // dummy nop implementation without shared memory
+
+    // Input parameter 'size' is the desired size of the timeline in byte units.
+    // The size of the shared memory must be at least Timeline::sharedSize(size).
+    Writer(void *shared, size_t size);
+    Writer(const sp<IMemory>& iMemory, size_t size);
+
+    virtual ~Writer();
+
+    virtual void    log(const char *string);
+    virtual void    logf(const char *fmt, ...) __attribute__ ((format (printf, 2, 3)));
+    virtual void    logvf(const char *fmt, va_list ap);
+    virtual void    logTimestamp();
+    virtual void    logTimestamp(const struct timespec &ts);
+    virtual void    logInteger(const int x);
+    virtual void    logFloat(const float x);
+    virtual void    logPID();
+    virtual void    logFormat(const char *fmt, ...);
+    virtual void    logVFormat(const char *fmt, va_list ap);
+    virtual void    logStart(const char *fmt);
+    virtual void    logEnd();
+
+
+    virtual bool    isEnabled() const;
+
+    // return value for all of these is the previous isEnabled()
+    virtual bool    setEnabled(bool enabled);   // but won't enable if no shared memory
+            bool    enable()    { return setEnabled(true); }
+            bool    disable()   { return setEnabled(false); }
+
+    sp<IMemory>     getIMemory() const  { return mIMemory; }
+
+private:
+    // 0 <= length <= kMaxLength
+    void    log(Event event, const void *data, size_t length);
+    void    log(const Entry *entry, bool trusted = false);
+
+    Shared* const   mShared;    // raw pointer to shared memory
+    sp<IMemory>     mIMemory;   // ref-counted version, initialized in constructor and then const
+    audio_utils_fifo * const mFifo;                 // FIFO itself,
+                                                    // non-NULL unless constructor fails
+    audio_utils_fifo_writer * const mFifoWriter;    // used to write to FIFO,
+                                                    // non-NULL unless dummy constructor used
+    bool            mEnabled;   // whether to actually log
+
+    // cached pid and process name to use in %p format specifier
+    // total tag length is mPidTagSize and process name is not zero terminated
+    char   *mPidTag;
+    size_t  mPidTagSize;
+};
+
+// ---------------------------------------------------------------------------
+
+// Similar to Writer, but safe for multiple threads to call concurrently
+class LockedWriter : public Writer {
+public:
+    LockedWriter();
+    LockedWriter(void *shared, size_t size);
+
+    virtual void    log(const char *string);
+    virtual void    logf(const char *fmt, ...) __attribute__ ((format (printf, 2, 3)));
+    virtual void    logvf(const char *fmt, va_list ap);
+    virtual void    logTimestamp();
+    virtual void    logTimestamp(const struct timespec &ts);
+    virtual void    logInteger(const int x);
+    virtual void    logFloat(const float x);
+    virtual void    logPID();
+    virtual void    logStart(const char *fmt);
+    virtual void    logEnd();
+
+    virtual bool    isEnabled() const;
+    virtual bool    setEnabled(bool enabled);
+
+private:
+    mutable Mutex   mLock;
+};
+
+// ---------------------------------------------------------------------------
+
+class Reader : public RefBase {
+public:
+
+    // A snapshot of a readers buffer
+    class Snapshot {
+    public:
+        Snapshot() : mData(NULL), mLost(0) {}
+
+        Snapshot(size_t bufferSize) : mData(new uint8_t[bufferSize]) {}
+
+        ~Snapshot() { delete[] mData; }
+
+        // copy of the buffer
+        uint8_t *data() const { return mData; }
+
+        // amount of data lost (given by audio_utils_fifo_reader)
+        size_t   lost() const { return mLost; }
+
+        // iterator to beginning of readable segment of snapshot
+        // data between begin and end has valid entries
+        FormatEntry::iterator begin() { return mBegin; }
+
+        // iterator to end of readable segment of snapshot
+        FormatEntry::iterator end() { return mEnd; }
+
+
+    private:
+        friend class Reader;
+        uint8_t              *mData;
+        size_t                mLost;
+        FormatEntry::iterator mBegin;
+        FormatEntry::iterator mEnd;
+    };
+
+    // Input parameter 'size' is the desired size of the timeline in byte units.
+    // The size of the shared memory must be at least Timeline::sharedSize(size).
+    Reader(const void *shared, size_t size);
+    Reader(const sp<IMemory>& iMemory, size_t size);
+
+    virtual ~Reader();
+
+    // get snapshot of readers fifo buffer, effectively consuming the buffer
+    std::unique_ptr<Snapshot> getSnapshot();
+    // dump a particular snapshot of the reader
+    void     dump(int fd, size_t indent, Snapshot & snap);
+    // dump the current content of the reader's buffer
+    void     dump(int fd, size_t indent = 0);
+    bool     isIMemory(const sp<IMemory>& iMemory) const;
+
+private:
+    /*const*/ Shared* const mShared;    // raw pointer to shared memory, actually const but not
+                                        // declared as const because audio_utils_fifo() constructor
+    sp<IMemory> mIMemory;       // ref-counted version, assigned only in constructor
+    int     mFd;                // file descriptor
+    int     mIndent;            // indentation level
+    audio_utils_fifo * const mFifo;                 // FIFO itself,
+                                                    // non-NULL unless constructor fails
+    audio_utils_fifo_reader * const mFifoReader;    // used to read from FIFO,
+                                                    // non-NULL unless constructor fails
+
+    void    dumpLine(const String8& timestamp, String8& body);
+
+    FormatEntry::iterator   handleFormat(const FormatEntry &fmtEntry,
+                                         String8 *timestamp,
+                                         String8 *body);
+    // dummy method for handling absent author entry
+    virtual size_t handleAuthor(const FormatEntry &fmtEntry, String8 *body) { return 0; }
+
+    // Searches for the last entry of type <type> in the range [front, back)
+    // back has to be entry-aligned. Returns nullptr if none enconuntered.
+    static uint8_t *findLastEntryOfType(uint8_t *front, uint8_t *back, uint8_t type);
+
+    static const size_t kSquashTimestamp = 5; // squash this many or more adjacent timestamps
+};
+
+// Wrapper for a reader with a name. Contains a pointer to the reader and a pointer to the name
+class NamedReader {
+public:
+    NamedReader() { mName[0] = '\0'; } // for Vector
+    NamedReader(const sp<NBLog::Reader>& reader, const char *name) :
+        mReader(reader)
+        { strlcpy(mName, name, sizeof(mName)); }
+    ~NamedReader() { }
+    const sp<NBLog::Reader>&  reader() const { return mReader; }
+    const char*               name() const { return mName; }
+
+private:
+    sp<NBLog::Reader>   mReader;
+    static const size_t kMaxName = 32;
+    char                mName[kMaxName];
+};
+
+// ---------------------------------------------------------------------------
+
+class Merger : public RefBase {
+public:
+    Merger(const void *shared, size_t size);
+
+    virtual ~Merger() {}
+
+    void addReader(const NamedReader &reader);
+    // TODO add removeReader
+    void merge();
+    const std::vector<NamedReader> *getNamedReaders() const;
+private:
+    // vector of the readers the merger is supposed to merge from.
+    // every reader reads from a writer's buffer
+    std::vector<NamedReader> mNamedReaders;
+    uint8_t *mBuffer;
+    Shared * const mShared;
+    std::unique_ptr<audio_utils_fifo> mFifo;
+    std::unique_ptr<audio_utils_fifo_writer> mFifoWriter;
+
+    static struct timespec getTimestamp(const uint8_t *data);
+};
+
+class MergeReader : public Reader {
+public:
+    MergeReader(const void *shared, size_t size, Merger &merger);
+private:
+    const std::vector<NamedReader> *mNamedReaders;
+    // handle author entry by looking up the author's name and appending it to the body
+    // returns number of bytes read from fmtEntry
+    size_t handleAuthor(const FormatEntry &fmtEntry, String8 *body);
+};
+
+// MergeThread is a thread that contains a Merger. It works as a retriggerable one-shot:
+// when triggered, it awakes for a lapse of time, during which it periodically merges; if
+// retriggered, the timeout is reset.
+// The thread is triggered on AudioFlinger binder activity.
+class MergeThread : public Thread {
+public:
+    MergeThread(Merger &merger);
+    virtual ~MergeThread() override;
+
+    // Reset timeout and activate thread to merge periodically if it's idle
+    void wakeup();
+
+    // Set timeout period until the merging thread goes idle again
+    void setTimeoutUs(int time);
+
+private:
+    virtual bool threadLoop() override;
+
+    // the merger who actually does the work of merging the logs
+    Merger&     mMerger;
+
+    // mutex for the condition variable
+    Mutex       mMutex;
+
+    // condition variable to activate merging on timeout >= 0
+    Condition   mCond;
+
+    // time left until the thread blocks again (in microseconds)
+    int         mTimeoutUs;
+
+    // merging period when the thread is awake
+    static const int  kThreadSleepPeriodUs = 1000000 /*1s*/;
+
+    // initial timeout value when triggered
+    static const int  kThreadWakeupPeriodUs = 3000000 /*3s*/;
+};
+
+};  // class NBLog
+
+}   // namespace android
+
+#endif  // ANDROID_MEDIA_NBLOG_H
diff --git a/media/libnbaio/include/Pipe.h b/media/libnbaio/include/Pipe.h
new file mode 100644
index 0000000..58b9750
--- /dev/null
+++ b/media/libnbaio/include/Pipe.h
@@ -0,0 +1,71 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_AUDIO_PIPE_H
+#define ANDROID_AUDIO_PIPE_H
+
+#include <audio_utils/fifo.h>
+#include "NBAIO.h"
+
+namespace android {
+
+// Pipe is multi-thread safe for readers (see PipeReader), but safe for only a single writer thread.
+// It cannot UNDERRUN on write, unless we allow designation of a master reader that provides the
+// time-base. Readers can be added and removed dynamically, and it's OK to have no readers.
+class Pipe : public NBAIO_Sink {
+
+    friend class PipeReader;
+
+public:
+    // maxFrames will be rounded up to a power of 2, and all slots are available. Must be >= 2.
+    // buffer is an optional parameter specifying the virtual address of the pipe buffer,
+    // which must be of size roundup(maxFrames) * Format_frameSize(format) bytes.
+    Pipe(size_t maxFrames, const NBAIO_Format& format, void *buffer = NULL);
+
+    // If a buffer was specified in the constructor, it is not automatically freed by destructor.
+    virtual ~Pipe();
+
+    // NBAIO_Port interface
+
+    //virtual ssize_t negotiate(const NBAIO_Format offers[], size_t numOffers,
+    //                          NBAIO_Format counterOffers[], size_t& numCounterOffers);
+    //virtual NBAIO_Format format() const;
+
+    // NBAIO_Sink interface
+
+    //virtual int64_t framesWritten() const;
+    //virtual int64_t framesUnderrun() const;
+    //virtual int64_t underruns() const;
+
+    // The write side of a pipe permits overruns; flow control is the caller's responsibility.
+    // It doesn't return +infinity because that would guarantee an overrun.
+    virtual ssize_t availableToWrite() { return mMaxFrames; }
+
+    virtual ssize_t write(const void *buffer, size_t count);
+    //virtual ssize_t writeVia(writeVia_t via, size_t total, void *user, size_t block);
+
+private:
+    const size_t    mMaxFrames;     // always a power of 2
+    void * const    mBuffer;
+    audio_utils_fifo        mFifo;
+    audio_utils_fifo_writer mFifoWriter;
+    volatile int32_t mReaders;      // number of PipeReader clients currently attached to this Pipe
+    const bool      mFreeBufferInDestructor;
+};
+
+}   // namespace android
+
+#endif  // ANDROID_AUDIO_PIPE_H
diff --git a/media/libnbaio/include/PipeReader.h b/media/libnbaio/include/PipeReader.h
new file mode 100644
index 0000000..70ecb34
--- /dev/null
+++ b/media/libnbaio/include/PipeReader.h
@@ -0,0 +1,67 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_AUDIO_PIPE_READER_H
+#define ANDROID_AUDIO_PIPE_READER_H
+
+#include "Pipe.h"
+
+namespace android {
+
+// PipeReader is safe for only a single thread
+class PipeReader : public NBAIO_Source {
+
+public:
+
+    // Construct a PipeReader and associate it with a Pipe
+    // FIXME make this constructor a factory method of Pipe.
+    PipeReader(Pipe& pipe);
+    virtual ~PipeReader();
+
+    // NBAIO_Port interface
+
+    //virtual ssize_t negotiate(const NBAIO_Format offers[], size_t numOffers,
+    //                          NBAIO_Format counterOffers[], size_t& numCounterOffers);
+    //virtual NBAIO_Format format() const;
+
+    // NBAIO_Source interface
+
+    //virtual size_t framesRead() const;
+    virtual int64_t framesOverrun() { return mFramesOverrun; }
+    virtual int64_t overruns()  { return mOverruns; }
+
+    virtual ssize_t availableToRead();
+
+    virtual ssize_t read(void *buffer, size_t count);
+
+    virtual ssize_t flush();
+
+    // NBAIO_Source end
+
+#if 0   // until necessary
+    Pipe& pipe() const { return mPipe; }
+#endif
+
+private:
+    Pipe&       mPipe;
+    audio_utils_fifo_reader mFifoReader;
+    int64_t     mFramesOverrun;
+    int64_t     mOverruns;
+};
+
+}   // namespace android
+
+#endif  // ANDROID_AUDIO_PIPE_READER_H
diff --git a/include/media/nbaio/SourceAudioBufferProvider.h b/media/libnbaio/include/SourceAudioBufferProvider.h
similarity index 100%
rename from include/media/nbaio/SourceAudioBufferProvider.h
rename to media/libnbaio/include/SourceAudioBufferProvider.h
diff --git a/media/libstagefright/ACodec.cpp b/media/libstagefright/ACodec.cpp
index e7057ce..81eecaf 100644
--- a/media/libstagefright/ACodec.cpp
+++ b/media/libstagefright/ACodec.cpp
@@ -44,6 +44,10 @@
 #include <media/stagefright/PersistentSurface.h>
 #include <media/stagefright/SurfaceUtils.h>
 #include <media/hardware/HardwareAPI.h>
+#include <media/OMXBuffer.h>
+#include <media/omx/1.0/WOmxNode.h>
+
+#include <hidlmemory/mapping.h>
 
 #include <OMX_AudioExt.h>
 #include <OMX_VideoExt.h>
@@ -52,11 +56,19 @@
 #include <OMX_AsString.h>
 
 #include "include/avc_utils.h"
+#include "include/ACodecBufferChannel.h"
 #include "include/DataConverter.h"
+#include "include/SecureBuffer.h"
+#include "include/SharedMemoryBuffer.h"
 #include "omx/OMXUtils.h"
 
+#include <android/hidl/allocator/1.0/IAllocator.h>
+#include <android/hidl/memory/1.0/IMemory.h>
+
 namespace android {
 
+using binder::Status;
+
 enum {
     kMaxIndicesToCheck = 32, // used when enumerating supported formats and profiles
 };
@@ -90,6 +102,21 @@
     }
 }
 
+static inline status_t statusFromBinderStatus(const Status &status) {
+    if (status.isOk()) {
+        return OK;
+    }
+    status_t err;
+    if ((err = status.serviceSpecificErrorCode()) != OK) {
+        return err;
+    }
+    if ((err = status.transactionError()) != OK) {
+        return err;
+    }
+    // Other exception
+    return UNKNOWN_ERROR;
+}
+
 // checks and converts status_t to a non-side-effect status_t
 static inline status_t makeNoSideEffectStatus(status_t err) {
     switch (err) {
@@ -136,15 +163,10 @@
         }
 
         sp<AMessage> notify = mNotify->dup();
-        bool first = true;
         sp<MessageList> msgList = new MessageList();
         for (std::list<omx_message>::const_iterator it = messages.cbegin();
               it != messages.cend(); ++it) {
             const omx_message &omx_msg = *it;
-            if (first) {
-                notify->setInt32("node", omx_msg.node);
-                first = false;
-            }
 
             sp<AMessage> msg = new AMessage;
             msg->setInt32("type", omx_msg.type);
@@ -266,7 +288,9 @@
 
 ////////////////////////////////////////////////////////////////////////////////
 
-struct ACodec::DeathNotifier : public IBinder::DeathRecipient {
+struct ACodec::DeathNotifier :
+        public IBinder::DeathRecipient,
+        public ::android::hardware::hidl_death_recipient {
     explicit DeathNotifier(const sp<AMessage> &notify)
         : mNotify(notify) {
     }
@@ -275,6 +299,12 @@
         mNotify->post();
     }
 
+    virtual void serviceDied(
+            uint64_t /* cookie */,
+            const wp<::android::hidl::base::V1_0::IBase>& /* who */) {
+        mNotify->post();
+    }
+
 protected:
     virtual ~DeathNotifier() {}
 
@@ -495,8 +525,7 @@
 
 ACodec::ACodec()
     : mSampleRate(0),
-      mQuirks(0),
-      mNode(0),
+      mNodeGeneration(0),
       mUsingNativeWindow(false),
       mNativeWindowUsageBits(0),
       mLastNativeWindowDataSpace(HAL_DATASPACE_UNKNOWN),
@@ -512,9 +541,6 @@
       mChannelMaskPresent(false),
       mChannelMask(0),
       mDequeueCounter(0),
-      mInputMetadataType(kMetadataBufferTypeInvalid),
-      mOutputMetadataType(kMetadataBufferTypeInvalid),
-      mLegacyAdaptiveExperiment(false),
       mMetadataBuffersToSubmit(0),
       mNumUndequeuedBuffers(0),
       mRepeatFrameDelayUs(-1ll),
@@ -542,24 +568,34 @@
     mPortEOS[kPortIndexInput] = mPortEOS[kPortIndexOutput] = false;
     mInputEOSResult = OK;
 
+    mPortMode[kPortIndexInput] = IOMX::kPortModePresetByteBuffer;
+    mPortMode[kPortIndexOutput] = IOMX::kPortModePresetByteBuffer;
+
     memset(&mLastNativeWindowCrop, 0, sizeof(mLastNativeWindowCrop));
 
     changeState(mUninitializedState);
+
+    mTrebleFlag = false;
 }
 
 ACodec::~ACodec() {
 }
 
-void ACodec::setNotificationMessage(const sp<AMessage> &msg) {
-    mNotify = msg;
-}
-
 void ACodec::initiateSetup(const sp<AMessage> &msg) {
     msg->setWhat(kWhatSetup);
     msg->setTarget(this);
     msg->post();
 }
 
+std::shared_ptr<BufferChannelBase> ACodec::getBufferChannel() {
+    if (!mBufferChannel) {
+        mBufferChannel = std::make_shared<ACodecBufferChannel>(
+                new AMessage(kWhatInputBufferFilled, this),
+                new AMessage(kWhatOutputBufferDrained, this));
+    }
+    return mBufferChannel;
+}
+
 void ACodec::signalSetParameters(const sp<AMessage> &params) {
     sp<AMessage> msg = new AMessage(kWhatSetParameters, this);
     msg->setMessage("params", params);
@@ -677,8 +713,7 @@
     int usageBits = 0;
     // no need to reconnect as we will not dequeue all buffers
     status_t err = setupNativeWindowSizeFormatAndUsage(
-            nativeWindow, &usageBits,
-            !storingMetadataInDecodedBuffers() || mLegacyAdaptiveExperiment /* reconnect */);
+            nativeWindow, &usageBits, !storingMetadataInDecodedBuffers());
     if (err != OK) {
         return err;
     }
@@ -728,7 +763,6 @@
         const BufferInfo &info = buffers[i];
         // skip undequeued buffers for meta data mode
         if (storingMetadataInDecodedBuffers()
-                && !mLegacyAdaptiveExperiment
                 && info.mStatus == BufferInfo::OWNED_BY_NATIVE_WINDOW) {
             ALOGV("skipping buffer");
             continue;
@@ -745,7 +779,7 @@
     }
 
     // cancel undequeued buffers to new surface
-    if (!storingMetadataInDecodedBuffers() || mLegacyAdaptiveExperiment) {
+    if (!storingMetadataInDecodedBuffers()) {
         for (size_t i = 0; i < buffers.size(); ++i) {
             BufferInfo &info = buffers.editItemAt(i);
             if (info.mStatus == BufferInfo::OWNED_BY_NATIVE_WINDOW) {
@@ -775,10 +809,29 @@
     return OK;
 }
 
+status_t ACodec::setPortMode(int32_t portIndex, IOMX::PortMode mode) {
+    status_t err = mOMXNode->setPortMode(portIndex, mode);
+    if (err != OK) {
+        ALOGE("[%s] setPortMode on %s to %s failed w/ err %d",
+                mComponentName.c_str(),
+                portIndex == kPortIndexInput ? "input" : "output",
+                asString(mode),
+                err);
+        return err;
+    }
+
+    mPortMode[portIndex] = mode;
+    return OK;
+}
+
 status_t ACodec::allocateBuffersOnPort(OMX_U32 portIndex) {
     CHECK(portIndex == kPortIndexInput || portIndex == kPortIndexOutput);
 
-    CHECK(mDealer[portIndex] == NULL);
+    if (getTrebleFlag()) {
+        CHECK(mAllocator[portIndex] == NULL);
+    } else {
+        CHECK(mDealer[portIndex] == NULL);
+    }
     CHECK(mBuffers[portIndex].isEmpty());
 
     status_t err;
@@ -793,30 +846,21 @@
         InitOMXParams(&def);
         def.nPortIndex = portIndex;
 
-        err = mOMX->getParameter(
-                mNode, OMX_IndexParamPortDefinition, &def, sizeof(def));
+        err = mOMXNode->getParameter(
+                OMX_IndexParamPortDefinition, &def, sizeof(def));
 
         if (err == OK) {
-            MetadataBufferType type =
-                portIndex == kPortIndexOutput ? mOutputMetadataType : mInputMetadataType;
+            const IOMX::PortMode &mode = mPortMode[portIndex];
             size_t bufSize = def.nBufferSize;
-            if (type == kMetadataBufferTypeANWBuffer) {
+            // Always allocate VideoNativeMetadata if using ANWBuffer.
+            // OMX might use gralloc source internally, but we don't share
+            // metadata buffer with OMX, OMX has its own headers.
+            if (mode == IOMX::kPortModeDynamicANWBuffer) {
                 bufSize = sizeof(VideoNativeMetadata);
-            } else if (type == kMetadataBufferTypeNativeHandleSource) {
+            } else if (mode == IOMX::kPortModeDynamicNativeHandle) {
                 bufSize = sizeof(VideoNativeHandleMetadata);
             }
 
-            // If using gralloc or native source input metadata buffers, allocate largest
-            // metadata size as we prefer to generate native source metadata, but component
-            // may require gralloc source. For camera source, allocate at least enough
-            // size for native metadata buffers.
-            size_t allottedSize = bufSize;
-            if (portIndex == kPortIndexInput && type == kMetadataBufferTypeANWBuffer) {
-                bufSize = max(sizeof(VideoGrallocMetadata), sizeof(VideoNativeMetadata));
-            } else if (portIndex == kPortIndexInput && type == kMetadataBufferTypeCameraSource) {
-                bufSize = max(bufSize, sizeof(VideoNativeMetadata));
-            }
-
             size_t conversionBufferSize = 0;
 
             sp<DataConverter> converter = mConverter[portIndex];
@@ -831,9 +875,9 @@
 
             size_t alignment = MemoryDealer::getAllocationAlignment();
 
-            ALOGV("[%s] Allocating %u buffers of size %zu/%zu (from %u using %s) on %s port",
+            ALOGV("[%s] Allocating %u buffers of size %zu (from %u using %s) on %s port",
                     mComponentName.c_str(),
-                    def.nBufferCountActual, bufSize, allottedSize, def.nBufferSize, asString(type),
+                    def.nBufferCountActual, bufSize, def.nBufferSize, asString(mode),
                     portIndex == kPortIndexInput ? "input" : "output");
 
             // verify buffer sizes to avoid overflow in align()
@@ -850,74 +894,127 @@
                 return NO_MEMORY;
             }
 
-            size_t totalSize = def.nBufferCountActual * (alignedSize + alignedConvSize);
-            mDealer[portIndex] = new MemoryDealer(totalSize, "ACodec");
-
-            for (OMX_U32 i = 0; i < def.nBufferCountActual && err == OK; ++i) {
-                sp<IMemory> mem = mDealer[portIndex]->allocate(bufSize);
-                if (mem == NULL || mem->pointer() == NULL) {
-                    return NO_MEMORY;
+            if (mode != IOMX::kPortModePresetSecureBuffer) {
+                if (getTrebleFlag()) {
+                    mAllocator[portIndex] = TAllocator::getService("ashmem");
+                    if (mAllocator[portIndex] == nullptr) {
+                        ALOGE("hidl allocator on port %d is null",
+                                (int)portIndex);
+                        return NO_MEMORY;
+                    }
+                } else {
+                    size_t totalSize = def.nBufferCountActual *
+                            (alignedSize + alignedConvSize);
+                    mDealer[portIndex] = new MemoryDealer(totalSize, "ACodec");
                 }
+            }
+
+            const sp<AMessage> &format =
+                    portIndex == kPortIndexInput ? mInputFormat : mOutputFormat;
+            for (OMX_U32 i = 0; i < def.nBufferCountActual && err == OK; ++i) {
+                hidl_memory hidlMemToken;
+                sp<TMemory> hidlMem;
+                sp<IMemory> mem;
 
                 BufferInfo info;
                 info.mStatus = BufferInfo::OWNED_BY_US;
                 info.mFenceFd = -1;
                 info.mRenderInfo = NULL;
-                info.mNativeHandle = NULL;
+                info.mGraphicBuffer = NULL;
+                info.mNewGraphicBuffer = false;
 
-                uint32_t requiresAllocateBufferBit =
-                    (portIndex == kPortIndexInput)
-                        ? kRequiresAllocateBufferOnInputPorts
-                        : kRequiresAllocateBufferOnOutputPorts;
-
-                if (portIndex == kPortIndexInput && (mFlags & kFlagIsSecure)) {
-                    mem.clear();
-
+                if (mode == IOMX::kPortModePresetSecureBuffer) {
                     void *ptr = NULL;
                     sp<NativeHandle> native_handle;
-                    err = mOMX->allocateSecureBuffer(
-                            mNode, portIndex, bufSize, &info.mBufferID,
+                    err = mOMXNode->allocateSecureBuffer(
+                            portIndex, bufSize, &info.mBufferID,
                             &ptr, &native_handle);
 
-                    // TRICKY: this representation is unorthodox, but ACodec requires
-                    // an ABuffer with a proper size to validate range offsets and lengths.
-                    // Since mData is never referenced for secure input, it is used to store
-                    // either the pointer to the secure buffer, or the opaque handle as on
-                    // some devices ptr is actually an opaque handle, not a pointer.
-
-                    // TRICKY2: use native handle as the base of the ABuffer if received one,
-                    // because Widevine source only receives these base addresses.
-                    const native_handle_t *native_handle_ptr =
-                        native_handle == NULL ? NULL : native_handle->handle();
-                    info.mData = new ABuffer(
-                            ptr != NULL ? ptr : (void *)native_handle_ptr, bufSize);
-                    info.mNativeHandle = native_handle;
+                    info.mData = (native_handle == NULL)
+                            ? new SecureBuffer(format, ptr, bufSize)
+                            : new SecureBuffer(format, native_handle, bufSize);
                     info.mCodecData = info.mData;
-                } else if (mQuirks & requiresAllocateBufferBit) {
-                    err = mOMX->allocateBufferWithBackup(
-                            mNode, portIndex, mem, &info.mBufferID, allottedSize);
                 } else {
-                    err = mOMX->useBuffer(mNode, portIndex, mem, &info.mBufferID, allottedSize);
-                }
+                    if (getTrebleFlag()) {
+                        bool success;
+                        auto transStatus = mAllocator[portIndex]->allocate(
+                                bufSize,
+                                [&success, &hidlMemToken](
+                                        bool s,
+                                        hidl_memory const& m) {
+                                    success = s;
+                                    hidlMemToken = m;
+                                });
 
-                if (mem != NULL) {
-                    info.mCodecData = new ABuffer(mem->pointer(), bufSize);
-                    info.mCodecRef = mem;
+                        if (!transStatus.isOk()) {
+                            ALOGE("hidl's AshmemAllocator failed at the "
+                                    "transport: %s",
+                                    transStatus.description().c_str());
+                            return NO_MEMORY;
+                        }
+                        if (!success) {
+                            return NO_MEMORY;
+                        }
+                        hidlMem = mapMemory(hidlMemToken);
 
-                    if (type == kMetadataBufferTypeANWBuffer) {
-                        ((VideoNativeMetadata *)mem->pointer())->nFenceFd = -1;
+                        err = mOMXNode->useBuffer(
+                                portIndex, hidlMemToken, &info.mBufferID);
+                    } else {
+                        mem = mDealer[portIndex]->allocate(bufSize);
+                        if (mem == NULL || mem->pointer() == NULL) {
+                            return NO_MEMORY;
+                        }
+
+                        err = mOMXNode->useBuffer(
+                                portIndex, mem, &info.mBufferID);
+                    }
+
+                    if (mode == IOMX::kPortModeDynamicANWBuffer) {
+                        VideoNativeMetadata* metaData = (VideoNativeMetadata*)(
+                                getTrebleFlag() ?
+                                (void*)hidlMem->getPointer() : mem->pointer());
+                        metaData->nFenceFd = -1;
+                    }
+
+                    if (getTrebleFlag()) {
+                        info.mCodecData = new SharedMemoryBuffer(
+                                format, hidlMem);
+                        info.mCodecRef = hidlMem;
+                    } else {
+                        info.mCodecData = new SharedMemoryBuffer(
+                                format, mem);
+                        info.mCodecRef = mem;
                     }
 
                     // if we require conversion, allocate conversion buffer for client use;
                     // otherwise, reuse codec buffer
                     if (mConverter[portIndex] != NULL) {
                         CHECK_GT(conversionBufferSize, (size_t)0);
-                        mem = mDealer[portIndex]->allocate(conversionBufferSize);
-                        if (mem == NULL|| mem->pointer() == NULL) {
-                            return NO_MEMORY;
+                        if (getTrebleFlag()) {
+                            bool success;
+                            mAllocator[portIndex]->allocate(
+                                    conversionBufferSize,
+                                    [&success, &hidlMemToken](
+                                            bool s,
+                                            hidl_memory const& m) {
+                                        success = s;
+                                        hidlMemToken = m;
+                                    });
+                            if (!success) {
+                                return NO_MEMORY;
+                            }
+                            hidlMem = mapMemory(hidlMemToken);
+                            info.mData = new SharedMemoryBuffer(format, hidlMem);
+                            info.mMemRef = hidlMem;
+                        } else {
+                            mem = mDealer[portIndex]->allocate(
+                                    conversionBufferSize);
+                            if (mem == NULL|| mem->pointer() == NULL) {
+                                return NO_MEMORY;
+                            }
+                            info.mData = new SharedMemoryBuffer(format, mem);
+                            info.mMemRef = mem;
                         }
-                        info.mData = new ABuffer(mem->pointer(), conversionBufferSize);
-                        info.mMemRef = mem;
                     } else {
                         info.mData = info.mCodecData;
                         info.mMemRef = info.mCodecRef;
@@ -933,20 +1030,17 @@
         return err;
     }
 
-    sp<AMessage> notify = mNotify->dup();
-    notify->setInt32("what", CodecBase::kWhatBuffersAllocated);
-
-    notify->setInt32("portIndex", portIndex);
-
-    sp<PortDescription> desc = new PortDescription;
-
+    std::vector<ACodecBufferChannel::BufferAndId> array(mBuffers[portIndex].size());
     for (size_t i = 0; i < mBuffers[portIndex].size(); ++i) {
-        const BufferInfo &info = mBuffers[portIndex][i];
-        desc->addBuffer(info.mBufferID, info.mData, info.mNativeHandle, info.mMemRef);
+        array[i] = {mBuffers[portIndex][i].mData, mBuffers[portIndex][i].mBufferID};
     }
-
-    notify->setObject("portDesc", desc);
-    notify->post();
+    if (portIndex == kPortIndexInput) {
+        mBufferChannel->setInputBufferArray(array);
+    } else if (portIndex == kPortIndexOutput) {
+        mBufferChannel->setOutputBufferArray(array);
+    } else {
+        TRESPASS();
+    }
 
     return OK;
 }
@@ -958,15 +1052,15 @@
     InitOMXParams(&def);
     def.nPortIndex = kPortIndexOutput;
 
-    status_t err = mOMX->getParameter(
-            mNode, OMX_IndexParamPortDefinition, &def, sizeof(def));
+    status_t err = mOMXNode->getParameter(
+            OMX_IndexParamPortDefinition, &def, sizeof(def));
 
     if (err != OK) {
         return err;
     }
 
     OMX_U32 usage = 0;
-    err = mOMX->getGraphicBufferUsage(mNode, kPortIndexOutput, &usage);
+    err = mOMXNode->getGraphicBufferUsage(kPortIndexOutput, &usage);
     if (err != 0) {
         ALOGW("querying usage flags from OMX IL component failed: %d", err);
         // XXX: Currently this error is logged, but not fatal.
@@ -1003,8 +1097,8 @@
     InitOMXParams(&def);
     def.nPortIndex = kPortIndexOutput;
 
-    status_t err = mOMX->getParameter(
-            mNode, OMX_IndexParamPortDefinition, &def, sizeof(def));
+    status_t err = mOMXNode->getParameter(
+            OMX_IndexParamPortDefinition, &def, sizeof(def));
 
     if (err == OK) {
         err = setupNativeWindowSizeFormatAndUsage(
@@ -1021,8 +1115,8 @@
     if (mTunneled) {
         ALOGV("Tunneled Playback: skipping native window buffer allocation.");
         def.nBufferCountActual = 0;
-        err = mOMX->setParameter(
-                mNode, OMX_IndexParamPortDefinition, &def, sizeof(def));
+        err = mOMXNode->setParameter(
+                OMX_IndexParamPortDefinition, &def, sizeof(def));
 
         *minUndequeuedBuffers = 0;
         *bufferCount = 0;
@@ -1057,8 +1151,8 @@
         OMX_U32 newBufferCount =
             def.nBufferCountMin + *minUndequeuedBuffers + extraBuffers;
         def.nBufferCountActual = newBufferCount;
-        err = mOMX->setParameter(
-                mNode, OMX_IndexParamPortDefinition, &def, sizeof(def));
+        err = mOMXNode->setParameter(
+                OMX_IndexParamPortDefinition, &def, sizeof(def));
 
         if (err == OK) {
             *minUndequeuedBuffers += extraBuffers;
@@ -1088,6 +1182,10 @@
 }
 
 status_t ACodec::allocateOutputBuffersFromNativeWindow() {
+    // This method only handles the non-metadata mode (or simulating legacy
+    // mode with metadata, which is transparent to ACodec).
+    CHECK(!storingMetadataInDecodedBuffers());
+
     OMX_U32 bufferCount, bufferSize, minUndequeuedBuffers;
     status_t err = configureOutputBuffersFromNativeWindow(
             &bufferCount, &bufferSize, &minUndequeuedBuffers, true /* preregister */);
@@ -1095,10 +1193,8 @@
         return err;
     mNumUndequeuedBuffers = minUndequeuedBuffers;
 
-    if (!storingMetadataInDecodedBuffers()) {
-        static_cast<Surface*>(mNativeWindow.get())
-                ->getIGraphicBufferProducer()->allowAllocation(true);
-    }
+    static_cast<Surface*>(mNativeWindow.get())
+            ->getIGraphicBufferProducer()->allowAllocation(true);
 
     ALOGV("[%s] Allocating %u buffers from a native window of size %u on "
          "output port",
@@ -1120,14 +1216,19 @@
         info.mFenceFd = fenceFd;
         info.mIsReadFence = false;
         info.mRenderInfo = NULL;
-        info.mData = new ABuffer(NULL /* data */, bufferSize /* capacity */);
-        info.mCodecData = info.mData;
         info.mGraphicBuffer = graphicBuffer;
+        info.mNewGraphicBuffer = false;
+
+        // TODO: We shouln't need to create MediaCodecBuffer. In metadata mode
+        //       OMX doesn't use the shared memory buffer, but some code still
+        //       access info.mData. Create an ABuffer as a placeholder.
+        info.mData = new MediaCodecBuffer(mOutputFormat, new ABuffer(bufferSize));
+        info.mCodecData = info.mData;
+
         mBuffers[kPortIndexOutput].push(info);
 
         IOMX::buffer_id bufferId;
-        err = mOMX->useGraphicBuffer(mNode, kPortIndexOutput, graphicBuffer,
-                &bufferId);
+        err = mOMXNode->useBuffer(kPortIndexOutput, graphicBuffer, &bufferId);
         if (err != 0) {
             ALOGE("registering GraphicBuffer %u with OMX IL component failed: "
                  "%d", i, err);
@@ -1144,9 +1245,9 @@
     OMX_U32 cancelStart;
     OMX_U32 cancelEnd;
 
-    if (err != 0) {
+    if (err != OK) {
         // If an error occurred while dequeuing we need to cancel any buffers
-        // that were dequeued.
+        // that were dequeued. Also cancel all if we're in legacy metadata mode.
         cancelStart = 0;
         cancelEnd = mBuffers[kPortIndexOutput].size();
     } else {
@@ -1165,102 +1266,47 @@
         }
     }
 
-    if (!storingMetadataInDecodedBuffers()) {
-        static_cast<Surface*>(mNativeWindow.get())
-                ->getIGraphicBufferProducer()->allowAllocation(false);
-    }
+    static_cast<Surface*>(mNativeWindow.get())
+            ->getIGraphicBufferProducer()->allowAllocation(false);
 
     return err;
 }
 
 status_t ACodec::allocateOutputMetadataBuffers() {
+    CHECK(storingMetadataInDecodedBuffers());
+
     OMX_U32 bufferCount, bufferSize, minUndequeuedBuffers;
     status_t err = configureOutputBuffersFromNativeWindow(
             &bufferCount, &bufferSize, &minUndequeuedBuffers,
-            mLegacyAdaptiveExperiment /* preregister */);
-    if (err != 0)
+            false /* preregister */);
+    if (err != OK)
         return err;
     mNumUndequeuedBuffers = minUndequeuedBuffers;
 
     ALOGV("[%s] Allocating %u meta buffers on output port",
          mComponentName.c_str(), bufferCount);
 
-    size_t bufSize = mOutputMetadataType == kMetadataBufferTypeANWBuffer ?
-            sizeof(struct VideoNativeMetadata) : sizeof(struct VideoGrallocMetadata);
-    size_t totalSize = bufferCount * align(bufSize, MemoryDealer::getAllocationAlignment());
-    mDealer[kPortIndexOutput] = new MemoryDealer(totalSize, "ACodec");
-
-    // Dequeue buffers and send them to OMX
     for (OMX_U32 i = 0; i < bufferCount; i++) {
         BufferInfo info;
         info.mStatus = BufferInfo::OWNED_BY_NATIVE_WINDOW;
         info.mFenceFd = -1;
         info.mRenderInfo = NULL;
         info.mGraphicBuffer = NULL;
+        info.mNewGraphicBuffer = false;
         info.mDequeuedAt = mDequeueCounter;
 
-        sp<IMemory> mem = mDealer[kPortIndexOutput]->allocate(bufSize);
-        if (mem == NULL || mem->pointer() == NULL) {
-            return NO_MEMORY;
-        }
-        if (mOutputMetadataType == kMetadataBufferTypeANWBuffer) {
-            ((VideoNativeMetadata *)mem->pointer())->nFenceFd = -1;
-        }
-        info.mData = new ABuffer(mem->pointer(), mem->size());
-        info.mMemRef = mem;
-        info.mCodecData = info.mData;
-        info.mCodecRef = mem;
+        info.mData = new MediaCodecBuffer(mOutputFormat, new ABuffer(bufferSize));
 
-        // we use useBuffer for metadata regardless of quirks
-        err = mOMX->useBuffer(
-                mNode, kPortIndexOutput, mem, &info.mBufferID, mem->size());
+        // Initialize fence fd to -1 to avoid warning in freeBuffer().
+        ((VideoNativeMetadata *)info.mData->base())->nFenceFd = -1;
+
+        info.mCodecData = info.mData;
+
+        err = mOMXNode->useBuffer(kPortIndexOutput, OMXBuffer::sPreset, &info.mBufferID);
         mBuffers[kPortIndexOutput].push(info);
 
-        ALOGV("[%s] allocated meta buffer with ID %u (pointer = %p)",
-             mComponentName.c_str(), info.mBufferID, mem->pointer());
-    }
-
-    if (mLegacyAdaptiveExperiment) {
-        // preallocate and preregister buffers
-        static_cast<Surface *>(mNativeWindow.get())
-                ->getIGraphicBufferProducer()->allowAllocation(true);
-
-        ALOGV("[%s] Allocating %u buffers from a native window of size %u on "
-             "output port",
-             mComponentName.c_str(), bufferCount, bufferSize);
-
-        // Dequeue buffers then cancel them all
-        for (OMX_U32 i = 0; i < bufferCount; i++) {
-            BufferInfo *info = &mBuffers[kPortIndexOutput].editItemAt(i);
-
-            ANativeWindowBuffer *buf;
-            int fenceFd;
-            err = mNativeWindow->dequeueBuffer(mNativeWindow.get(), &buf, &fenceFd);
-            if (err != 0) {
-                ALOGE("dequeueBuffer failed: %s (%d)", strerror(-err), -err);
-                break;
-            }
-
-            sp<GraphicBuffer> graphicBuffer(new GraphicBuffer(buf, false));
-            mOMX->updateGraphicBufferInMeta(
-                    mNode, kPortIndexOutput, graphicBuffer, info->mBufferID);
-            info->mStatus = BufferInfo::OWNED_BY_US;
-            info->setWriteFence(fenceFd, "allocateOutputMetadataBuffers for legacy");
-            info->mGraphicBuffer = graphicBuffer;
-        }
-
-        for (OMX_U32 i = 0; i < mBuffers[kPortIndexOutput].size(); i++) {
-            BufferInfo *info = &mBuffers[kPortIndexOutput].editItemAt(i);
-            if (info->mStatus == BufferInfo::OWNED_BY_US) {
-                status_t error = cancelBufferToNativeWindow(info);
-                if (err == OK) {
-                    err = error;
-                }
-            }
-        }
-
-        static_cast<Surface*>(mNativeWindow.get())
-                ->getIGraphicBufferProducer()->allowAllocation(false);
+        ALOGV("[%s] allocated meta buffer with ID %u",
+                mComponentName.c_str(), info.mBufferID);
     }
 
     mMetadataBuffersToSubmit = bufferCount - minUndequeuedBuffers;
@@ -1278,17 +1324,11 @@
     }
 
     ALOGV("[%s] submitting output meta buffer ID %u for graphic buffer %p",
-          mComponentName.c_str(), info->mBufferID, info->mGraphicBuffer.get());
+          mComponentName.c_str(), info->mBufferID, info->mGraphicBuffer->handle);
 
     --mMetadataBuffersToSubmit;
     info->checkWriteFence("submitOutputMetadataBuffer");
-    status_t err = mOMX->fillBuffer(mNode, info->mBufferID, info->mFenceFd);
-    info->mFenceFd = -1;
-    if (err == OK) {
-        info->mStatus = BufferInfo::OWNED_BY_COMPONENT;
-    }
-
-    return err;
+    return fillBuffer(info);
 }
 
 status_t ACodec::waitForFence(int fd, const char *dbg ) {
@@ -1364,8 +1404,6 @@
 }
 
 void ACodec::notifyOfRenderedFrames(bool dropIncomplete, FrameRenderTracker::Info *until) {
-    sp<AMessage> msg = mNotify->dup();
-    msg->setInt32("what", CodecBase::kWhatOutputFramesRendered);
     std::list<FrameRenderTracker::Info> done =
         mRenderTracker.checkFencesAndGetRenderedFrames(until, dropIncomplete);
 
@@ -1381,9 +1419,7 @@
         }
     }
 
-    if (MediaCodec::CreateFramesRenderedMessage(done, msg)) {
-        msg->post();
-    }
+    mCallback->onOutputFramesRendered(done);
 }
 
 ACodec::BufferInfo *ACodec::dequeueBufferFromNativeWindow() {
@@ -1429,7 +1465,11 @@
                     break;
                 }
 
-                ALOGV("dequeued buffer %p", info->mGraphicBuffer->getNativeBuffer());
+                ALOGV("dequeued buffer #%u with age %u, graphicBuffer %p",
+                        (unsigned)(info - &mBuffers[kPortIndexOutput][0]),
+                        mDequeueCounter - info->mDequeuedAt,
+                        info->mGraphicBuffer->handle);
+
                 info->mStatus = BufferInfo::OWNED_BY_US;
                 info->setWriteFence(fenceFd, "dequeueBufferFromNativeWindow");
                 updateRenderInfoForDequeuedBuffer(buf, fenceFd, info);
@@ -1442,7 +1482,7 @@
         // same is possible in meta mode, in which case, it will be treated
         // as a normal buffer, which is not desirable.
         // TODO: fix this.
-        if (!stale && (!storingMetadataInDecodedBuffers() || mLegacyAdaptiveExperiment)) {
+        if (!stale && !storingMetadataInDecodedBuffers()) {
             ALOGI("dequeued unrecognized (stale) buffer %p. discarding", buf);
             stale = true;
         }
@@ -1475,38 +1515,28 @@
 
     // discard buffer in LRU info and replace with new buffer
     oldest->mGraphicBuffer = new GraphicBuffer(buf, false);
+    oldest->mNewGraphicBuffer = true;
     oldest->mStatus = BufferInfo::OWNED_BY_US;
     oldest->setWriteFence(fenceFd, "dequeueBufferFromNativeWindow for oldest");
     mRenderTracker.untrackFrame(oldest->mRenderInfo);
     oldest->mRenderInfo = NULL;
 
-    mOMX->updateGraphicBufferInMeta(
-            mNode, kPortIndexOutput, oldest->mGraphicBuffer,
-            oldest->mBufferID);
-
-    if (mOutputMetadataType == kMetadataBufferTypeGrallocSource) {
-        VideoGrallocMetadata *grallocMeta =
-            reinterpret_cast<VideoGrallocMetadata *>(oldest->mData->base());
-        ALOGV("replaced oldest buffer #%u with age %u (%p/%p stored in %p)",
-                (unsigned)(oldest - &mBuffers[kPortIndexOutput][0]),
-                mDequeueCounter - oldest->mDequeuedAt,
-                (void *)(uintptr_t)grallocMeta->pHandle,
-                oldest->mGraphicBuffer->handle, oldest->mData->base());
-    } else if (mOutputMetadataType == kMetadataBufferTypeANWBuffer) {
-        VideoNativeMetadata *nativeMeta =
-            reinterpret_cast<VideoNativeMetadata *>(oldest->mData->base());
-        ALOGV("replaced oldest buffer #%u with age %u (%p/%p stored in %p)",
-                (unsigned)(oldest - &mBuffers[kPortIndexOutput][0]),
-                mDequeueCounter - oldest->mDequeuedAt,
-                (void *)(uintptr_t)nativeMeta->pBuffer,
-                oldest->mGraphicBuffer->getNativeBuffer(), oldest->mData->base());
-    }
+    ALOGV("replaced oldest buffer #%u with age %u, graphicBuffer %p",
+            (unsigned)(oldest - &mBuffers[kPortIndexOutput][0]),
+            mDequeueCounter - oldest->mDequeuedAt,
+            oldest->mGraphicBuffer->handle);
 
     updateRenderInfoForDequeuedBuffer(buf, fenceFd, oldest);
     return oldest;
 }
 
 status_t ACodec::freeBuffersOnPort(OMX_U32 portIndex) {
+    if (portIndex == kPortIndexInput) {
+        mBufferChannel->setInputBufferArray({});
+    } else {
+        mBufferChannel->setOutputBufferArray({});
+    }
+
     status_t err = OK;
     for (size_t i = mBuffers[portIndex].size(); i > 0;) {
         i--;
@@ -1516,8 +1546,11 @@
         }
     }
 
-    // clear mDealer even on an error
-    mDealer[portIndex].clear();
+    if (getTrebleFlag()) {
+        mAllocator[portIndex].clear();
+    } else {
+        mDealer[portIndex].clear();
+    }
     return err;
 }
 
@@ -1547,11 +1580,9 @@
     status_t err = OK;
 
     // there should not be any fences in the metadata
-    MetadataBufferType type =
-        portIndex == kPortIndexOutput ? mOutputMetadataType : mInputMetadataType;
-    if (type == kMetadataBufferTypeANWBuffer && info->mData != NULL
-            && info->mData->size() >= sizeof(VideoNativeMetadata)) {
-        int fenceFd = ((VideoNativeMetadata *)info->mData->data())->nFenceFd;
+    if (mPortMode[portIndex] == IOMX::kPortModeDynamicANWBuffer && info->mCodecData != NULL
+            && info->mCodecData->size() >= sizeof(VideoNativeMetadata)) {
+        int fenceFd = ((VideoNativeMetadata *)info->mCodecData->base())->nFenceFd;
         if (fenceFd >= 0) {
             ALOGW("unreleased fence (%d) in %s metadata buffer %zu",
                     fenceFd, portIndex == kPortIndexInput ? "input" : "output", i);
@@ -1566,7 +1597,7 @@
             // fall through
 
         case BufferInfo::OWNED_BY_NATIVE_WINDOW:
-            err = mOMX->freeBuffer(mNode, portIndex, info->mBufferID);
+            err = mOMXNode->freeBuffer(portIndex, info->mBufferID);
             break;
 
         default:
@@ -1584,7 +1615,7 @@
         info->mRenderInfo = NULL;
     }
 
-    // remove buffer even if mOMX->freeBuffer fails
+    // remove buffer even if mOMXNode->freeBuffer fails
     mBuffers[portIndex].removeAt(i);
     return err;
 }
@@ -1606,13 +1637,37 @@
     return NULL;
 }
 
+status_t ACodec::fillBuffer(BufferInfo *info) {
+    status_t err;
+    // Even in dynamic ANW buffer mode, if the graphic buffer is not changing,
+    // send sPreset instead of the same graphic buffer, so that OMX server
+    // side doesn't update the meta. In theory it should make no difference,
+    // however when the same buffer is parcelled again, a new handle could be
+    // created on server side, and some decoder doesn't recognize the handle
+    // even if it's the same buffer.
+    if (!storingMetadataInDecodedBuffers() || !info->mNewGraphicBuffer) {
+        err = mOMXNode->fillBuffer(
+            info->mBufferID, OMXBuffer::sPreset, info->mFenceFd);
+    } else {
+        err = mOMXNode->fillBuffer(
+            info->mBufferID, info->mGraphicBuffer, info->mFenceFd);
+    }
+
+    info->mNewGraphicBuffer = false;
+    info->mFenceFd = -1;
+    if (err == OK) {
+        info->mStatus = BufferInfo::OWNED_BY_COMPONENT;
+    }
+    return err;
+}
+
 status_t ACodec::setComponentRole(
         bool isEncoder, const char *mime) {
-    const char *role = getComponentRole(isEncoder, mime);
+    const char *role = GetComponentRole(isEncoder, mime);
     if (role == NULL) {
         return BAD_VALUE;
     }
-    status_t err = setComponentRole(mOMX, mNode, role);
+    status_t err = SetComponentRole(mOMXNode, role);
     if (err != OK) {
         ALOGW("[%s] Failed to set standard component role '%s'.",
              mComponentName.c_str(), role);
@@ -1620,98 +1675,6 @@
     return err;
 }
 
-//static
-const char *ACodec::getComponentRole(
-        bool isEncoder, const char *mime) {
-    struct MimeToRole {
-        const char *mime;
-        const char *decoderRole;
-        const char *encoderRole;
-    };
-
-    static const MimeToRole kMimeToRole[] = {
-        { MEDIA_MIMETYPE_AUDIO_MPEG,
-            "audio_decoder.mp3", "audio_encoder.mp3" },
-        { MEDIA_MIMETYPE_AUDIO_MPEG_LAYER_I,
-            "audio_decoder.mp1", "audio_encoder.mp1" },
-        { MEDIA_MIMETYPE_AUDIO_MPEG_LAYER_II,
-            "audio_decoder.mp2", "audio_encoder.mp2" },
-        { MEDIA_MIMETYPE_AUDIO_AMR_NB,
-            "audio_decoder.amrnb", "audio_encoder.amrnb" },
-        { MEDIA_MIMETYPE_AUDIO_AMR_WB,
-            "audio_decoder.amrwb", "audio_encoder.amrwb" },
-        { MEDIA_MIMETYPE_AUDIO_AAC,
-            "audio_decoder.aac", "audio_encoder.aac" },
-        { MEDIA_MIMETYPE_AUDIO_VORBIS,
-            "audio_decoder.vorbis", "audio_encoder.vorbis" },
-        { MEDIA_MIMETYPE_AUDIO_OPUS,
-            "audio_decoder.opus", "audio_encoder.opus" },
-        { MEDIA_MIMETYPE_AUDIO_G711_MLAW,
-            "audio_decoder.g711mlaw", "audio_encoder.g711mlaw" },
-        { MEDIA_MIMETYPE_AUDIO_G711_ALAW,
-            "audio_decoder.g711alaw", "audio_encoder.g711alaw" },
-        { MEDIA_MIMETYPE_VIDEO_AVC,
-            "video_decoder.avc", "video_encoder.avc" },
-        { MEDIA_MIMETYPE_VIDEO_HEVC,
-            "video_decoder.hevc", "video_encoder.hevc" },
-        { MEDIA_MIMETYPE_VIDEO_MPEG4,
-            "video_decoder.mpeg4", "video_encoder.mpeg4" },
-        { MEDIA_MIMETYPE_VIDEO_H263,
-            "video_decoder.h263", "video_encoder.h263" },
-        { MEDIA_MIMETYPE_VIDEO_VP8,
-            "video_decoder.vp8", "video_encoder.vp8" },
-        { MEDIA_MIMETYPE_VIDEO_VP9,
-            "video_decoder.vp9", "video_encoder.vp9" },
-        { MEDIA_MIMETYPE_AUDIO_RAW,
-            "audio_decoder.raw", "audio_encoder.raw" },
-        { MEDIA_MIMETYPE_VIDEO_DOLBY_VISION,
-            "video_decoder.dolby-vision", "video_encoder.dolby-vision" },
-        { MEDIA_MIMETYPE_AUDIO_FLAC,
-            "audio_decoder.flac", "audio_encoder.flac" },
-        { MEDIA_MIMETYPE_AUDIO_MSGSM,
-            "audio_decoder.gsm", "audio_encoder.gsm" },
-        { MEDIA_MIMETYPE_VIDEO_MPEG2,
-            "video_decoder.mpeg2", "video_encoder.mpeg2" },
-        { MEDIA_MIMETYPE_AUDIO_AC3,
-            "audio_decoder.ac3", "audio_encoder.ac3" },
-        { MEDIA_MIMETYPE_AUDIO_EAC3,
-            "audio_decoder.eac3", "audio_encoder.eac3" },
-    };
-
-    static const size_t kNumMimeToRole =
-        sizeof(kMimeToRole) / sizeof(kMimeToRole[0]);
-
-    size_t i;
-    for (i = 0; i < kNumMimeToRole; ++i) {
-        if (!strcasecmp(mime, kMimeToRole[i].mime)) {
-            break;
-        }
-    }
-
-    if (i == kNumMimeToRole) {
-        return NULL;
-    }
-
-    return isEncoder ? kMimeToRole[i].encoderRole
-                  : kMimeToRole[i].decoderRole;
-}
-
-//static
-status_t ACodec::setComponentRole(
-        const sp<IOMX> &omx, IOMX::node_id node, const char *role) {
-    OMX_PARAM_COMPONENTROLETYPE roleParams;
-    InitOMXParams(&roleParams);
-
-    strncpy((char *)roleParams.cRole,
-            role, OMX_MAX_STRINGNAME_SIZE - 1);
-
-    roleParams.cRole[OMX_MAX_STRINGNAME_SIZE - 1] = '\0';
-
-    return omx->setParameter(
-            node, OMX_IndexParamStandardComponentRole,
-            &roleParams, sizeof(roleParams));
-}
-
 status_t ACodec::configureCodec(
         const char *mime, const sp<AMessage> &msg) {
     int32_t encoder;
@@ -1725,8 +1688,8 @@
 
     mIsEncoder = encoder;
 
-    mInputMetadataType = kMetadataBufferTypeInvalid;
-    mOutputMetadataType = kMetadataBufferTypeInvalid;
+    mPortMode[kPortIndexInput] = IOMX::kPortModePresetByteBuffer;
+    mPortMode[kPortIndexOutput] = IOMX::kPortModePresetByteBuffer;
 
     status_t err = setComponentRole(encoder /* isEncoder */, mime);
 
@@ -1753,23 +1716,23 @@
     if (encoder
             && msg->findInt32("android._input-metadata-buffer-type", &storeMeta)
             && storeMeta != kMetadataBufferTypeInvalid) {
-        mInputMetadataType = (MetadataBufferType)storeMeta;
-        err = mOMX->storeMetaDataInBuffers(
-                mNode, kPortIndexInput, OMX_TRUE, &mInputMetadataType);
+        IOMX::PortMode mode;
+        if (storeMeta == kMetadataBufferTypeNativeHandleSource) {
+            mode = IOMX::kPortModeDynamicNativeHandle;
+        } else if (storeMeta == kMetadataBufferTypeANWBuffer ||
+                storeMeta == kMetadataBufferTypeGrallocSource) {
+            mode = IOMX::kPortModeDynamicANWBuffer;
+        } else {
+            return BAD_VALUE;
+        }
+        err = setPortMode(kPortIndexInput, mode);
         if (err != OK) {
-            ALOGE("[%s] storeMetaDataInBuffers (input) failed w/ err %d",
-                    mComponentName.c_str(), err);
-
             return err;
-        } else if (storeMeta == kMetadataBufferTypeANWBuffer
-                && mInputMetadataType == kMetadataBufferTypeGrallocSource) {
-            // IOMX translates ANWBuffers to gralloc source already.
-            mInputMetadataType = (MetadataBufferType)storeMeta;
         }
 
         uint32_t usageBits;
-        if (mOMX->getParameter(
-                mNode, (OMX_INDEXTYPE)OMX_IndexParamConsumerUsageBits,
+        if (mOMXNode->getParameter(
+                (OMX_INDEXTYPE)OMX_IndexParamConsumerUsageBits,
                 &usageBits, sizeof(usageBits)) == OK) {
             inputFormat->setInt32(
                     "using-sw-read-often", !!(usageBits & GRALLOC_USAGE_SW_READ_OFTEN));
@@ -1781,18 +1744,15 @@
             && msg->findInt32("prepend-sps-pps-to-idr-frames", &prependSPSPPS)
             && prependSPSPPS != 0) {
         OMX_INDEXTYPE index;
-        err = mOMX->getExtensionIndex(
-                mNode,
-                "OMX.google.android.index.prependSPSPPSToIDRFrames",
-                &index);
+        err = mOMXNode->getExtensionIndex(
+                "OMX.google.android.index.prependSPSPPSToIDRFrames", &index);
 
         if (err == OK) {
             PrependSPSPPSToIDRFramesParams params;
             InitOMXParams(&params);
             params.bEnable = OMX_TRUE;
 
-            err = mOMX->setParameter(
-                    mNode, index, &params, sizeof(params));
+            err = mOMXNode->setParameter(index, &params, sizeof(params));
         }
 
         if (err != OK) {
@@ -1812,12 +1772,14 @@
         OMX_BOOL enable = (OMX_BOOL) (prependSPSPPS
             && msg->findInt32("android._store-metadata-in-buffers-output", &storeMeta)
             && storeMeta != 0);
+        if (mFlags & kFlagIsSecure) {
+            enable = OMX_TRUE;
+        }
 
-        mOutputMetadataType = kMetadataBufferTypeNativeHandleSource;
-        err = mOMX->storeMetaDataInBuffers(mNode, kPortIndexOutput, enable, &mOutputMetadataType);
+        err = setPortMode(kPortIndexOutput, enable ?
+                IOMX::kPortModePresetSecureBuffer : IOMX::kPortModePresetByteBuffer);
         if (err != OK) {
-            ALOGE("[%s] storeMetaDataInBuffers (output) failed w/ err %d",
-                mComponentName.c_str(), err);
+            return err;
         }
 
         if (!msg->findInt64(
@@ -1826,8 +1788,12 @@
             mRepeatFrameDelayUs = -1ll;
         }
 
+        // only allow 32-bit value, since we pass it as U32 to OMX.
         if (!msg->findInt64("max-pts-gap-to-encoder", &mMaxPtsGapUs)) {
             mMaxPtsGapUs = -1ll;
+        } else if (mMaxPtsGapUs > INT32_MAX || mMaxPtsGapUs < 0) {
+            ALOGW("Unsupported value for max pts gap %lld", (long long) mMaxPtsGapUs);
+            mMaxPtsGapUs = -1ll;
         }
 
         if (!msg->findFloat("max-fps-to-encoder", &mMaxFps)) {
@@ -1850,7 +1816,6 @@
     bool haveNativeWindow = msg->findObject("native-window", &obj)
             && obj != NULL && video && !encoder;
     mUsingNativeWindow = haveNativeWindow;
-    mLegacyAdaptiveExperiment = false;
     if (video && !encoder) {
         inputFormat->setInt32("adaptive-playback", false);
 
@@ -1866,10 +1831,13 @@
 
         if (mFlags & kFlagIsSecure) {
             // use native_handles for secure input buffers
-            err = mOMX->enableNativeBuffers(
-                    mNode, kPortIndexInput, OMX_FALSE /* graphic */, OMX_TRUE);
-            ALOGI_IF(err != OK, "falling back to non-native_handles");
-            err = OK; // ignore error for now
+            err = setPortMode(kPortIndexInput, IOMX::kPortModePresetSecureBuffer);
+
+            if (err != OK) {
+                ALOGI("falling back to non-native_handles");
+                setPortMode(kPortIndexInput, IOMX::kPortModePresetByteBuffer);
+                err = OK; // ignore error for now
+            }
         }
     }
     if (haveNativeWindow) {
@@ -1883,8 +1851,8 @@
             OMX_CONFIG_BOOLEANTYPE config;
             InitOMXParams(&config);
             config.bEnabled = (OMX_BOOL)enabled;
-            status_t temp = mOMX->setConfig(
-                    mNode, (OMX_INDEXTYPE)OMX_IndexConfigAutoFramerateConversion,
+            status_t temp = mOMXNode->setConfig(
+                    (OMX_INDEXTYPE)OMX_IndexConfigAutoFramerateConversion,
                     &config, sizeof(config));
             if (temp == OK) {
                 outputFormat->setInt32("auto-frc", enabled);
@@ -1915,8 +1883,8 @@
             if (msg->findInt32("max-width", &maxWidth) &&
                     msg->findInt32("max-height", &maxHeight)) {
 
-                err = mOMX->prepareForAdaptivePlayback(
-                        mNode, kPortIndexOutput, OMX_TRUE, maxWidth, maxHeight);
+                err = mOMXNode->prepareForAdaptivePlayback(
+                        kPortIndexOutput, OMX_TRUE, maxWidth, maxHeight);
                 if (err != OK) {
                     ALOGW("[%s] prepareForAdaptivePlayback failed w/ err %d",
                             mComponentName.c_str(), err);
@@ -1941,14 +1909,8 @@
                 return err;
             }
 
-            // Always try to enable dynamic output buffers on native surface
-            mOutputMetadataType = kMetadataBufferTypeANWBuffer;
-            err = mOMX->storeMetaDataInBuffers(
-                    mNode, kPortIndexOutput, OMX_TRUE, &mOutputMetadataType);
+            err = setPortMode(kPortIndexOutput, IOMX::kPortModeDynamicANWBuffer);
             if (err != OK) {
-                ALOGE("[%s] storeMetaDataInBuffers failed w/ err %d",
-                        mComponentName.c_str(), err);
-
                 // if adaptive playback has been requested, try JB fallback
                 // NOTE: THIS FALLBACK MECHANISM WILL BE REMOVED DUE TO ITS
                 // LARGE MEMORY REQUIREMENT
@@ -1978,9 +1940,8 @@
                     ALOGV("[%s] prepareForAdaptivePlayback(%dx%d)",
                             mComponentName.c_str(), maxWidth, maxHeight);
 
-                    err = mOMX->prepareForAdaptivePlayback(
-                            mNode, kPortIndexOutput, OMX_TRUE, maxWidth,
-                            maxHeight);
+                    err = mOMXNode->prepareForAdaptivePlayback(
+                            kPortIndexOutput, OMX_TRUE, maxWidth, maxHeight);
                     ALOGW_IF(err != OK,
                             "[%s] prepareForAdaptivePlayback failed w/ err %d",
                             mComponentName.c_str(), err);
@@ -1994,12 +1955,9 @@
                 // allow failure
                 err = OK;
             } else {
-                ALOGV("[%s] storeMetaDataInBuffers succeeded",
-                        mComponentName.c_str());
+                ALOGV("[%s] setPortMode on output to %s succeeded",
+                        mComponentName.c_str(), asString(IOMX::kPortModeDynamicANWBuffer));
                 CHECK(storingMetadataInDecodedBuffers());
-                mLegacyAdaptiveExperiment = ADebug::isExperimentEnabled(
-                        "legacy-adaptive", !msg->contains("no-experiments"));
-
                 inputFormat->setInt32("adaptive-playback", true);
             }
 
@@ -2028,6 +1986,12 @@
         if (haveNativeWindow && mComponentName.startsWith("OMX.google.")) {
             usingSwRenderer = true;
             haveNativeWindow = false;
+            (void)setPortMode(kPortIndexOutput, IOMX::kPortModePresetByteBuffer);
+        } else if (haveNativeWindow && !storingMetadataInDecodedBuffers()) {
+            err = setPortMode(kPortIndexOutput, IOMX::kPortModePresetANWBuffer);
+            if (err != OK) {
+                return err;
+            }
         }
 
         if (encoder) {
@@ -2042,17 +2006,8 @@
 
         if (haveNativeWindow) {
             mNativeWindow = static_cast<Surface *>(obj.get());
-        }
 
-        // initialize native window now to get actual output format
-        // TODO: this is needed for some encoders even though they don't use native window
-        err = initNativeWindow();
-        if (err != OK) {
-            return err;
-        }
-
-        // fallback for devices that do not handle flex-YUV for native buffers
-        if (haveNativeWindow) {
+            // fallback for devices that do not handle flex-YUV for native buffers
             int32_t requestedColorFormat = OMX_COLOR_FormatUnused;
             if (msg->findInt32("color-format", &requestedColorFormat) &&
                     requestedColorFormat == OMX_COLOR_FormatYUV420Flexible) {
@@ -2068,8 +2023,8 @@
                 }
                 ALOGD("[%s] Requested output format %#x and got %#x.",
                         mComponentName.c_str(), requestedColorFormat, colorFormat);
-                if (!isFlexibleColorFormat(
-                                mOMX, mNode, colorFormat, haveNativeWindow, &flexibleEquivalent)
+                if (!IsFlexibleColorFormat(
+                        mOMXNode, colorFormat, haveNativeWindow, &flexibleEquivalent)
                         || flexibleEquivalent != (OMX_U32)requestedColorFormat) {
                     // device did not handle flex-YUV request for native window, fall back
                     // to SW renderer
@@ -2078,18 +2033,10 @@
                     mNativeWindowUsageBits = 0;
                     haveNativeWindow = false;
                     usingSwRenderer = true;
-                    if (storingMetadataInDecodedBuffers()) {
-                        err = mOMX->storeMetaDataInBuffers(
-                                mNode, kPortIndexOutput, OMX_FALSE, &mOutputMetadataType);
-                        mOutputMetadataType = kMetadataBufferTypeInvalid; // just in case
-                        // TODO: implement adaptive-playback support for bytebuffer mode.
-                        // This is done by SW codecs, but most HW codecs don't support it.
-                        inputFormat->setInt32("adaptive-playback", false);
-                    }
-                    if (err == OK) {
-                        err = mOMX->enableNativeBuffers(
-                                mNode, kPortIndexOutput, OMX_TRUE /* graphic */, OMX_FALSE);
-                    }
+                    // TODO: implement adaptive-playback support for bytebuffer mode.
+                    // This is done by SW codecs, but most HW codecs don't support it.
+                    err = setPortMode(kPortIndexOutput, IOMX::kPortModePresetByteBuffer);
+                    inputFormat->setInt32("adaptive-playback", false);
                     if (mFlags & kFlagIsGrallocUsageProtected) {
                         // fallback is not supported for protected playback
                         err = PERMISSION_DENIED;
@@ -2290,7 +2237,6 @@
 
     // NOTE: both mBaseOutputFormat and mOutputFormat are outputFormat to signal first frame.
     mBaseOutputFormat = outputFormat;
-    // trigger a kWhatOutputFormatChanged msg on first buffer
     mLastOutputFormat.clear();
 
     err = getPortFormat(kPortIndexInput, inputFormat);
@@ -2330,8 +2276,8 @@
     OMX_PARAM_U32TYPE config;
     InitOMXParams(&config);
     config.nU32 = (OMX_U32)priority;
-    status_t temp = mOMX->setConfig(
-            mNode, (OMX_INDEXTYPE)OMX_IndexConfigPriority,
+    status_t temp = mOMXNode->setConfig(
+            (OMX_INDEXTYPE)OMX_IndexConfigPriority,
             &config, sizeof(config));
     if (temp != OK) {
         ALOGI("codec does not support config priority (err %d)", temp);
@@ -2358,8 +2304,8 @@
     OMX_PARAM_U32TYPE config;
     InitOMXParams(&config);
     config.nU32 = rate;
-    status_t err = mOMX->setConfig(
-            mNode, (OMX_INDEXTYPE)OMX_IndexConfigOperatingRate,
+    status_t err = mOMXNode->setConfig(
+            (OMX_INDEXTYPE)OMX_IndexConfigOperatingRate,
             &config, sizeof(config));
     if (err != OK) {
         ALOGI("codec does not support config operating rate (err %d)", err);
@@ -2371,8 +2317,8 @@
     OMX_VIDEO_CONFIG_ANDROID_INTRAREFRESHTYPE params;
     InitOMXParams(&params);
     params.nPortIndex = kPortIndexOutput;
-    status_t err = mOMX->getConfig(
-            mNode, (OMX_INDEXTYPE)OMX_IndexConfigAndroidIntraRefresh, &params, sizeof(params));
+    status_t err = mOMXNode->getConfig(
+            (OMX_INDEXTYPE)OMX_IndexConfigAndroidIntraRefresh, &params, sizeof(params));
     if (err == OK) {
         *intraRefreshPeriod = params.nRefreshPeriod;
         return OK;
@@ -2383,8 +2329,8 @@
     InitOMXParams(&refreshParams);
     refreshParams.nPortIndex = kPortIndexOutput;
     refreshParams.eRefreshMode = OMX_VIDEO_IntraRefreshCyclic;
-    err = mOMX->getParameter(
-            mNode, OMX_IndexParamVideoIntraRefresh, &refreshParams, sizeof(refreshParams));
+    err = mOMXNode->getParameter(
+            OMX_IndexParamVideoIntraRefresh, &refreshParams, sizeof(refreshParams));
     if (err != OK || refreshParams.nCirMBs == 0) {
         *intraRefreshPeriod = 0;
         return OK;
@@ -2396,8 +2342,8 @@
     InitOMXParams(&def);
     OMX_VIDEO_PORTDEFINITIONTYPE *video_def = &def.format.video;
     def.nPortIndex = kPortIndexOutput;
-    err = mOMX->getParameter(
-            mNode, OMX_IndexParamPortDefinition, &def, sizeof(def));
+    err = mOMXNode->getParameter(
+            OMX_IndexParamPortDefinition, &def, sizeof(def));
     if (err != OK) {
         *intraRefreshPeriod = 0;
         return err;
@@ -2415,8 +2361,8 @@
     InitOMXParams(&params);
     params.nPortIndex = kPortIndexOutput;
     params.nRefreshPeriod = intraRefreshPeriod;
-    status_t err = mOMX->setConfig(
-            mNode, (OMX_INDEXTYPE)OMX_IndexConfigAndroidIntraRefresh, &params, sizeof(params));
+    status_t err = mOMXNode->setConfig(
+            (OMX_INDEXTYPE)OMX_IndexConfigAndroidIntraRefresh, &params, sizeof(params));
     if (err == OK) {
         return OK;
     }
@@ -2443,8 +2389,8 @@
         InitOMXParams(&def);
         OMX_VIDEO_PORTDEFINITIONTYPE *video_def = &def.format.video;
         def.nPortIndex = kPortIndexOutput;
-        err = mOMX->getParameter(
-                mNode, OMX_IndexParamPortDefinition, &def, sizeof(def));
+        err = mOMXNode->getParameter(
+                OMX_IndexParamPortDefinition, &def, sizeof(def));
         if (err != OK) {
             return err;
         }
@@ -2454,8 +2400,9 @@
         refreshParams.nCirMBs = divUp((divUp(width, 16u) * divUp(height, 16u)), intraRefreshPeriod);
     }
 
-    err = mOMX->setParameter(mNode, OMX_IndexParamVideoIntraRefresh,
-                             &refreshParams, sizeof(refreshParams));
+    err = mOMXNode->setParameter(
+            OMX_IndexParamVideoIntraRefresh,
+            &refreshParams, sizeof(refreshParams));
     if (err != OK) {
         return err;
     }
@@ -2498,9 +2445,9 @@
     InitOMXParams(&layerParams);
     layerParams.nPortIndex = kPortIndexOutput;
 
-    status_t err = mOMX->getParameter(
-        mNode, (OMX_INDEXTYPE)OMX_IndexParamAndroidVideoTemporalLayering,
-        &layerParams, sizeof(layerParams));
+    status_t err = mOMXNode->getParameter(
+            (OMX_INDEXTYPE)OMX_IndexParamAndroidVideoTemporalLayering,
+            &layerParams, sizeof(layerParams));
 
     if (err != OK) {
         return err;
@@ -2520,8 +2467,8 @@
         layerConfig.nBLayerCountActual = numBLayers;
         layerConfig.bBitrateRatiosSpecified = OMX_FALSE;
 
-        err = mOMX->setConfig(
-                mNode, (OMX_INDEXTYPE)OMX_IndexConfigAndroidVideoTemporalLayering,
+        err = mOMXNode->setConfig(
+                (OMX_INDEXTYPE)OMX_IndexConfigAndroidVideoTemporalLayering,
                 &layerConfig, sizeof(layerConfig));
     } else {
         layerParams.ePattern = pattern;
@@ -2529,8 +2476,8 @@
         layerParams.nBLayerCountActual = numBLayers;
         layerParams.bBitrateRatiosSpecified = OMX_FALSE;
 
-        err = mOMX->setParameter(
-                mNode, (OMX_INDEXTYPE)OMX_IndexParamAndroidVideoTemporalLayering,
+        err = mOMXNode->setParameter(
+                (OMX_INDEXTYPE)OMX_IndexParamAndroidVideoTemporalLayering,
                 &layerParams, sizeof(layerParams));
     }
 
@@ -2547,8 +2494,8 @@
         return err;
     }
 
-    err = mOMX->getParameter(
-            mNode, (OMX_INDEXTYPE)OMX_IndexParamAndroidVideoTemporalLayering,
+    err = mOMXNode->getParameter(
+            (OMX_INDEXTYPE)OMX_IndexParamAndroidVideoTemporalLayering,
             &layerParams, sizeof(layerParams));
 
     if (err == OK) {
@@ -2571,8 +2518,8 @@
     InitOMXParams(&def);
     def.nPortIndex = portIndex;
 
-    status_t err = mOMX->getParameter(
-            mNode, OMX_IndexParamPortDefinition, &def, sizeof(def));
+    status_t err = mOMXNode->getParameter(
+            OMX_IndexParamPortDefinition, &def, sizeof(def));
 
     if (err != OK) {
         return err;
@@ -2584,15 +2531,15 @@
 
     def.nBufferSize = size;
 
-    err = mOMX->setParameter(
-            mNode, OMX_IndexParamPortDefinition, &def, sizeof(def));
+    err = mOMXNode->setParameter(
+            OMX_IndexParamPortDefinition, &def, sizeof(def));
 
     if (err != OK) {
         return err;
     }
 
-    err = mOMX->getParameter(
-            mNode, OMX_IndexParamPortDefinition, &def, sizeof(def));
+    err = mOMXNode->getParameter(
+            OMX_IndexParamPortDefinition, &def, sizeof(def));
 
     if (err != OK) {
         return err;
@@ -2614,9 +2561,8 @@
     format.nPortIndex = portIndex;
     for (OMX_U32 index = 0; index <= kMaxIndicesToCheck; ++index) {
         format.nIndex = index;
-        status_t err = mOMX->getParameter(
-                mNode, OMX_IndexParamAudioPortFormat,
-                &format, sizeof(format));
+        status_t err = mOMXNode->getParameter(
+                OMX_IndexParamAudioPortFormat, &format, sizeof(format));
 
         if (err != OK) {
             return err;
@@ -2634,8 +2580,8 @@
         }
     }
 
-    return mOMX->setParameter(
-            mNode, OMX_IndexParamAudioPortFormat, &format, sizeof(format));
+    return mOMXNode->setParameter(
+            OMX_IndexParamAudioPortFormat, &format, sizeof(format));
 }
 
 status_t ACodec::setupAACCodec(
@@ -2667,8 +2613,8 @@
         InitOMXParams(&def);
         def.nPortIndex = kPortIndexOutput;
 
-        err = mOMX->getParameter(
-                mNode, OMX_IndexParamPortDefinition, &def, sizeof(def));
+        err = mOMXNode->getParameter(
+                OMX_IndexParamPortDefinition, &def, sizeof(def));
 
         if (err != OK) {
             return err;
@@ -2677,8 +2623,8 @@
         def.format.audio.bFlagErrorConcealment = OMX_TRUE;
         def.format.audio.eEncoding = OMX_AUDIO_CodingAAC;
 
-        err = mOMX->setParameter(
-                mNode, OMX_IndexParamPortDefinition, &def, sizeof(def));
+        err = mOMXNode->setParameter(
+                OMX_IndexParamPortDefinition, &def, sizeof(def));
 
         if (err != OK) {
             return err;
@@ -2688,8 +2634,8 @@
         InitOMXParams(&profile);
         profile.nPortIndex = kPortIndexOutput;
 
-        err = mOMX->getParameter(
-                mNode, OMX_IndexParamAudioAac, &profile, sizeof(profile));
+        err = mOMXNode->getParameter(
+                OMX_IndexParamAudioAac, &profile, sizeof(profile));
 
         if (err != OK) {
             return err;
@@ -2736,8 +2682,8 @@
         }
 
 
-        err = mOMX->setParameter(
-                mNode, OMX_IndexParamAudioAac, &profile, sizeof(profile));
+        err = mOMXNode->setParameter(
+                OMX_IndexParamAudioAac, &profile, sizeof(profile));
 
         if (err != OK) {
             return err;
@@ -2750,8 +2696,8 @@
     InitOMXParams(&profile);
     profile.nPortIndex = kPortIndexInput;
 
-    err = mOMX->getParameter(
-            mNode, OMX_IndexParamAudioAac, &profile, sizeof(profile));
+    err = mOMXNode->getParameter(
+            OMX_IndexParamAudioAac, &profile, sizeof(profile));
 
     if (err != OK) {
         return err;
@@ -2775,10 +2721,12 @@
     presentation.nEncodedTargetLevel = drc.encodedTargetLevel;
     presentation.nPCMLimiterEnable = pcmLimiterEnable;
 
-    status_t res = mOMX->setParameter(mNode, OMX_IndexParamAudioAac, &profile, sizeof(profile));
+    status_t res = mOMXNode->setParameter(
+            OMX_IndexParamAudioAac, &profile, sizeof(profile));
     if (res == OK) {
         // optional parameters, will not cause configuration failure
-        mOMX->setParameter(mNode, (OMX_INDEXTYPE)OMX_IndexParamAudioAndroidAacPresentation,
+        mOMXNode->setParameter(
+                (OMX_INDEXTYPE)OMX_IndexParamAudioAndroidAacPresentation,
                 &presentation, sizeof(presentation));
     } else {
         ALOGW("did not set AudioAndroidAacPresentation due to error %d when setting AudioAac", res);
@@ -2805,11 +2753,8 @@
     InitOMXParams(&def);
     def.nPortIndex = kPortIndexInput;
 
-    err = mOMX->getParameter(
-            mNode,
-            (OMX_INDEXTYPE)OMX_IndexParamAudioAndroidAc3,
-            &def,
-            sizeof(def));
+    err = mOMXNode->getParameter(
+            (OMX_INDEXTYPE)OMX_IndexParamAudioAndroidAc3, &def, sizeof(def));
 
     if (err != OK) {
         return err;
@@ -2818,11 +2763,8 @@
     def.nChannels = numChannels;
     def.nSampleRate = sampleRate;
 
-    return mOMX->setParameter(
-            mNode,
-            (OMX_INDEXTYPE)OMX_IndexParamAudioAndroidAc3,
-            &def,
-            sizeof(def));
+    return mOMXNode->setParameter(
+            (OMX_INDEXTYPE)OMX_IndexParamAudioAndroidAc3, &def, sizeof(def));
 }
 
 status_t ACodec::setupEAC3Codec(
@@ -2843,11 +2785,8 @@
     InitOMXParams(&def);
     def.nPortIndex = kPortIndexInput;
 
-    err = mOMX->getParameter(
-            mNode,
-            (OMX_INDEXTYPE)OMX_IndexParamAudioAndroidEac3,
-            &def,
-            sizeof(def));
+    err = mOMXNode->getParameter(
+            (OMX_INDEXTYPE)OMX_IndexParamAudioAndroidEac3, &def, sizeof(def));
 
     if (err != OK) {
         return err;
@@ -2856,11 +2795,8 @@
     def.nChannels = numChannels;
     def.nSampleRate = sampleRate;
 
-    return mOMX->setParameter(
-            mNode,
-            (OMX_INDEXTYPE)OMX_IndexParamAudioAndroidEac3,
-            &def,
-            sizeof(def));
+    return mOMXNode->setParameter(
+            (OMX_INDEXTYPE)OMX_IndexParamAudioAndroidEac3, &def, sizeof(def));
 }
 
 static OMX_AUDIO_AMRBANDMODETYPE pickModeFromBitRate(
@@ -2913,8 +2849,8 @@
     InitOMXParams(&def);
     def.nPortIndex = encoder ? kPortIndexOutput : kPortIndexInput;
 
-    status_t err =
-        mOMX->getParameter(mNode, OMX_IndexParamAudioAmr, &def, sizeof(def));
+    status_t err = mOMXNode->getParameter(
+            OMX_IndexParamAudioAmr, &def, sizeof(def));
 
     if (err != OK) {
         return err;
@@ -2923,8 +2859,8 @@
     def.eAMRFrameFormat = OMX_AUDIO_AMRFrameFormatFSF;
     def.eAMRBandMode = pickModeFromBitRate(isWAMR, bitrate);
 
-    err = mOMX->setParameter(
-            mNode, OMX_IndexParamAudioAmr, &def, sizeof(def));
+    err = mOMXNode->setParameter(
+            OMX_IndexParamAudioAmr, &def, sizeof(def));
 
     if (err != OK) {
         return err;
@@ -2954,13 +2890,13 @@
         def.nPortIndex = kPortIndexOutput;
 
         // configure compression level
-        status_t err = mOMX->getParameter(mNode, OMX_IndexParamAudioFlac, &def, sizeof(def));
+        status_t err = mOMXNode->getParameter(OMX_IndexParamAudioFlac, &def, sizeof(def));
         if (err != OK) {
             ALOGE("setupFlacCodec(): Error %d getting OMX_IndexParamAudioFlac parameter", err);
             return err;
         }
         def.nCompressionLevel = compressionLevel;
-        err = mOMX->setParameter(mNode, OMX_IndexParamAudioFlac, &def, sizeof(def));
+        err = mOMXNode->setParameter(OMX_IndexParamAudioFlac, &def, sizeof(def));
         if (err != OK) {
             ALOGE("setupFlacCodec(): Error %d setting OMX_IndexParamAudioFlac parameter", err);
             return err;
@@ -2979,8 +2915,8 @@
     InitOMXParams(&def);
     def.nPortIndex = portIndex;
 
-    status_t err = mOMX->getParameter(
-            mNode, OMX_IndexParamPortDefinition, &def, sizeof(def));
+    status_t err = mOMXNode->getParameter(
+            OMX_IndexParamPortDefinition, &def, sizeof(def));
 
     if (err != OK) {
         return err;
@@ -2988,8 +2924,8 @@
 
     def.format.audio.eEncoding = OMX_AUDIO_CodingPCM;
 
-    err = mOMX->setParameter(
-            mNode, OMX_IndexParamPortDefinition, &def, sizeof(def));
+    err = mOMXNode->setParameter(
+            OMX_IndexParamPortDefinition, &def, sizeof(def));
 
     if (err != OK) {
         return err;
@@ -2999,8 +2935,8 @@
     InitOMXParams(&pcmParams);
     pcmParams.nPortIndex = portIndex;
 
-    err = mOMX->getParameter(
-            mNode, OMX_IndexParamAudioPcm, &pcmParams, sizeof(pcmParams));
+    err = mOMXNode->getParameter(
+            OMX_IndexParamAudioPcm, &pcmParams, sizeof(pcmParams));
 
     if (err != OK) {
         return err;
@@ -3031,15 +2967,15 @@
         return OMX_ErrorNone;
     }
 
-    err = mOMX->setParameter(
-            mNode, OMX_IndexParamAudioPcm, &pcmParams, sizeof(pcmParams));
+    err = mOMXNode->setParameter(
+            OMX_IndexParamAudioPcm, &pcmParams, sizeof(pcmParams));
     // if we could not set up raw format to non-16-bit, try with 16-bit
     // NOTE: we will also verify this via readback, in case codec ignores these fields
     if (err != OK && encoding != kAudioEncodingPcm16bit) {
         pcmParams.eNumData = OMX_NumericalDataSigned;
         pcmParams.nBitPerSample = 16;
-        err = mOMX->setParameter(
-                mNode, OMX_IndexParamAudioPcm, &pcmParams, sizeof(pcmParams));
+        err = mOMXNode->setParameter(
+                OMX_IndexParamAudioPcm, &pcmParams, sizeof(pcmParams));
     }
     return err;
 }
@@ -3048,8 +2984,8 @@
         int32_t audioHwSync, const sp<ANativeWindow> &nativeWindow) {
     native_handle_t* sidebandHandle;
 
-    status_t err = mOMX->configureVideoTunnelMode(
-            mNode, kPortIndexOutput, OMX_TRUE, audioHwSync, &sidebandHandle);
+    status_t err = mOMXNode->configureVideoTunnelMode(
+            kPortIndexOutput, OMX_TRUE, audioHwSync, &sidebandHandle);
     if (err != OK) {
         ALOGE("configureVideoTunnelMode failed! (err %d).", err);
         return err;
@@ -3078,8 +3014,8 @@
 
     for (OMX_U32 index = 0; index <= kMaxIndicesToCheck; ++index) {
         format.nIndex = index;
-        status_t err = mOMX->getParameter(
-                mNode, OMX_IndexParamVideoPortFormat,
+        status_t err = mOMXNode->getParameter(
+                OMX_IndexParamVideoPortFormat,
                 &format, sizeof(format));
 
         if (err != OK) {
@@ -3089,8 +3025,8 @@
         // substitute back flexible color format to codec supported format
         OMX_U32 flexibleEquivalent;
         if (compressionFormat == OMX_VIDEO_CodingUnused
-                && isFlexibleColorFormat(
-                        mOMX, mNode, format.eColorFormat, usingNativeBuffers, &flexibleEquivalent)
+                && IsFlexibleColorFormat(
+                        mOMXNode, format.eColorFormat, usingNativeBuffers, &flexibleEquivalent)
                 && colorFormat == flexibleEquivalent) {
             ALOGI("[%s] using color format %#x in place of %#x",
                     mComponentName.c_str(), format.eColorFormat, colorFormat);
@@ -3133,9 +3069,8 @@
         return UNKNOWN_ERROR;
     }
 
-    status_t err = mOMX->setParameter(
-            mNode, OMX_IndexParamVideoPortFormat,
-            &format, sizeof(format));
+    status_t err = mOMXNode->setParameter(
+            OMX_IndexParamVideoPortFormat, &format, sizeof(format));
 
     return err;
 }
@@ -3165,9 +3100,8 @@
 
     for (OMX_U32 index = 0; ; ++index) {
         format.nIndex = index;
-        status_t err = mOMX->getParameter(
-                mNode, OMX_IndexParamVideoPortFormat,
-                &format, sizeof(format));
+        status_t err = mOMXNode->getParameter(
+                OMX_IndexParamVideoPortFormat, &format, sizeof(format));
         if (err != OK) {
             // no more formats, pick legacy format if found
             if (legacyFormat.eColorFormat != OMX_COLOR_FormatUnused) {
@@ -3193,16 +3127,15 @@
         // find best legacy non-standard format
         OMX_U32 flexibleEquivalent;
         if (legacyFormat.eColorFormat == OMX_COLOR_FormatUnused
-                && isFlexibleColorFormat(
-                        mOMX, mNode, format.eColorFormat, false /* usingNativeBuffers */,
+                && IsFlexibleColorFormat(
+                        mOMXNode, format.eColorFormat, false /* usingNativeBuffers */,
                         &flexibleEquivalent)
                 && flexibleEquivalent == OMX_COLOR_FormatYUV420Flexible) {
             memcpy(&legacyFormat, &format, sizeof(format));
         }
     }
-    return mOMX->setParameter(
-            mNode, OMX_IndexParamVideoPortFormat,
-            &format, sizeof(format));
+    return mOMXNode->setParameter(
+            OMX_IndexParamVideoPortFormat, &format, sizeof(format));
 }
 
 static const struct VideoCodingMapEntry {
@@ -3258,14 +3191,14 @@
     status_t err;
     ALOGD("Setting [%s] %s port buffer number: %d", mComponentName.c_str(),
             portIndex == kPortIndexInput ? "input" : "output", bufferNum);
-    err = mOMX->getParameter(
-        mNode, OMX_IndexParamPortDefinition, &def, sizeof(def));
+    err = mOMXNode->getParameter(
+        OMX_IndexParamPortDefinition, &def, sizeof(def));
     if (err != OK) {
         return err;
     }
     def.nBufferCountActual = bufferNum;
-    err = mOMX->setParameter(
-        mNode, OMX_IndexParamPortDefinition, &def, sizeof(def));
+    err = mOMXNode->setParameter(
+        OMX_IndexParamPortDefinition, &def, sizeof(def));
     if (err != OK) {
         // Component could reject this request.
         ALOGW("Fail to set [%s] %s port buffer number: %d", mComponentName.c_str(),
@@ -3296,11 +3229,9 @@
         params.nPortIndex = kPortIndexInput;
         // Check if VP9 decoder advertises supported profiles.
         params.nProfileIndex = 0;
-        status_t err = mOMX->getParameter(
-                mNode,
+        status_t err = mOMXNode->getParameter(
                 OMX_IndexParamVideoProfileLevelQuerySupported,
-                &params,
-                sizeof(params));
+                &params, sizeof(params));
         mIsLegacyVP9Decoder = err != OK;
     }
 
@@ -3389,8 +3320,8 @@
 }
 
 status_t ACodec::initDescribeColorAspectsIndex() {
-    status_t err = mOMX->getExtensionIndex(
-            mNode, "OMX.google.android.index.describeColorAspects", &mDescribeColorAspectsIndex);
+    status_t err = mOMXNode->getExtensionIndex(
+            "OMX.google.android.index.describeColorAspects", &mDescribeColorAspectsIndex);
     if (err != OK) {
         mDescribeColorAspectsIndex = (OMX_INDEXTYPE)0;
     }
@@ -3400,7 +3331,7 @@
 status_t ACodec::setCodecColorAspects(DescribeColorAspectsParams &params, bool verify) {
     status_t err = ERROR_UNSUPPORTED;
     if (mDescribeColorAspectsIndex) {
-        err = mOMX->setConfig(mNode, mDescribeColorAspectsIndex, &params, sizeof(params));
+        err = mOMXNode->setConfig(mDescribeColorAspectsIndex, &params, sizeof(params));
     }
     ALOGV("[%s] setting color aspects (R:%d(%s), P:%d(%s), M:%d(%s), T:%d(%s)) err=%d(%s)",
             mComponentName.c_str(),
@@ -3445,7 +3376,7 @@
 status_t ACodec::getCodecColorAspects(DescribeColorAspectsParams &params) {
     status_t err = ERROR_UNSUPPORTED;
     if (mDescribeColorAspectsIndex) {
-        err = mOMX->getConfig(mNode, mDescribeColorAspectsIndex, &params, sizeof(params));
+        err = mOMXNode->getConfig(mDescribeColorAspectsIndex, &params, sizeof(params));
     }
     ALOGV("[%s] got color aspects (R:%d(%s), P:%d(%s), M:%d(%s), T:%d(%s)) err=%d(%s)",
             mComponentName.c_str(),
@@ -3667,8 +3598,8 @@
 }
 
 status_t ACodec::initDescribeHDRStaticInfoIndex() {
-    status_t err = mOMX->getExtensionIndex(
-            mNode, "OMX.google.android.index.describeHDRStaticInfo", &mDescribeHDRStaticInfoIndex);
+    status_t err = mOMXNode->getExtensionIndex(
+            "OMX.google.android.index.describeHDRStaticInfo", &mDescribeHDRStaticInfoIndex);
     if (err != OK) {
         mDescribeHDRStaticInfoIndex = (OMX_INDEXTYPE)0;
     }
@@ -3678,7 +3609,7 @@
 status_t ACodec::setHDRStaticInfo(const DescribeHDRStaticInfoParams &params) {
     status_t err = ERROR_UNSUPPORTED;
     if (mDescribeHDRStaticInfoIndex) {
-        err = mOMX->setConfig(mNode, mDescribeHDRStaticInfoIndex, &params, sizeof(params));
+        err = mOMXNode->setConfig(mDescribeHDRStaticInfoIndex, &params, sizeof(params));
     }
 
     const HDRStaticInfo *info = &params.sInfo;
@@ -3699,7 +3630,7 @@
 status_t ACodec::getHDRStaticInfo(DescribeHDRStaticInfoParams &params) {
     status_t err = ERROR_UNSUPPORTED;
     if (mDescribeHDRStaticInfoIndex) {
-        err = mOMX->getConfig(mNode, mDescribeHDRStaticInfoIndex, &params, sizeof(params));
+        err = mOMXNode->getConfig(mDescribeHDRStaticInfoIndex, &params, sizeof(params));
     }
 
     ALOGW_IF(err == ERROR_UNSUPPORTED && mDescribeHDRStaticInfoIndex,
@@ -3738,8 +3669,8 @@
 
     def.nPortIndex = kPortIndexInput;
 
-    err = mOMX->getParameter(
-            mNode, OMX_IndexParamPortDefinition, &def, sizeof(def));
+    err = mOMXNode->getParameter(
+            OMX_IndexParamPortDefinition, &def, sizeof(def));
 
     if (err != OK) {
         return err;
@@ -3789,8 +3720,8 @@
         video_def->eColorFormat = colorFormat;
     }
 
-    err = mOMX->setParameter(
-            mNode, OMX_IndexParamPortDefinition, &def, sizeof(def));
+    err = mOMXNode->setParameter(
+            OMX_IndexParamPortDefinition, &def, sizeof(def));
 
     if (err != OK) {
         ALOGE("[%s] failed to set input port definition parameters.",
@@ -3820,8 +3751,8 @@
 
     def.nPortIndex = kPortIndexOutput;
 
-    err = mOMX->getParameter(
-            mNode, OMX_IndexParamPortDefinition, &def, sizeof(def));
+    err = mOMXNode->getParameter(
+            OMX_IndexParamPortDefinition, &def, sizeof(def));
 
     if (err != OK) {
         return err;
@@ -3834,8 +3765,8 @@
     video_def->eCompressionFormat = compressionFormat;
     video_def->eColorFormat = OMX_COLOR_FormatUnused;
 
-    err = mOMX->setParameter(
-            mNode, OMX_IndexParamPortDefinition, &def, sizeof(def));
+    err = mOMXNode->setParameter(
+            OMX_IndexParamPortDefinition, &def, sizeof(def));
 
     if (err != OK) {
         ALOGE("[%s] failed to set output port definition parameters.",
@@ -3964,9 +3895,8 @@
         params.nAirRef = ref;
     }
 
-    status_t err = mOMX->setParameter(
-            mNode, OMX_IndexParamVideoIntraRefresh,
-            &params, sizeof(params));
+    status_t err = mOMXNode->setParameter(
+            OMX_IndexParamVideoIntraRefresh, &params, sizeof(params));
     return err;
 }
 
@@ -4029,8 +3959,8 @@
     InitOMXParams(&mpeg4type);
     mpeg4type.nPortIndex = kPortIndexOutput;
 
-    status_t err = mOMX->getParameter(
-            mNode, OMX_IndexParamVideoMpeg4, &mpeg4type, sizeof(mpeg4type));
+    status_t err = mOMXNode->getParameter(
+            OMX_IndexParamVideoMpeg4, &mpeg4type, sizeof(mpeg4type));
 
     if (err != OK) {
         return err;
@@ -4072,8 +4002,8 @@
         mpeg4type.eLevel = static_cast<OMX_VIDEO_MPEG4LEVELTYPE>(level);
     }
 
-    err = mOMX->setParameter(
-            mNode, OMX_IndexParamVideoMpeg4, &mpeg4type, sizeof(mpeg4type));
+    err = mOMXNode->setParameter(
+            OMX_IndexParamVideoMpeg4, &mpeg4type, sizeof(mpeg4type));
 
     if (err != OK) {
         return err;
@@ -4111,8 +4041,8 @@
     InitOMXParams(&h263type);
     h263type.nPortIndex = kPortIndexOutput;
 
-    status_t err = mOMX->getParameter(
-            mNode, OMX_IndexParamVideoH263, &h263type, sizeof(h263type));
+    status_t err = mOMXNode->getParameter(
+            OMX_IndexParamVideoH263, &h263type, sizeof(h263type));
 
     if (err != OK) {
         return err;
@@ -4149,8 +4079,8 @@
     h263type.nPictureHeaderRepetition = 0;
     h263type.nGOBHeaderInterval = 0;
 
-    err = mOMX->setParameter(
-            mNode, OMX_IndexParamVideoH263, &h263type, sizeof(h263type));
+    err = mOMXNode->setParameter(
+            OMX_IndexParamVideoH263, &h263type, sizeof(h263type));
 
     if (err != OK) {
         return err;
@@ -4251,8 +4181,8 @@
     InitOMXParams(&h264type);
     h264type.nPortIndex = kPortIndexOutput;
 
-    err = mOMX->getParameter(
-            mNode, OMX_IndexParamVideoAvc, &h264type, sizeof(h264type));
+    err = mOMXNode->getParameter(
+            OMX_IndexParamVideoAvc, &h264type, sizeof(h264type));
 
     if (err != OK) {
         return err;
@@ -4341,8 +4271,8 @@
     h264type.bMBAFF = OMX_FALSE;
     h264type.eLoopFilterMode = OMX_VIDEO_AVCLoopFilterEnable;
 
-    err = mOMX->setParameter(
-            mNode, OMX_IndexParamVideoAvc, &h264type, sizeof(h264type));
+    err = mOMXNode->setParameter(
+            OMX_IndexParamVideoAvc, &h264type, sizeof(h264type));
 
     if (err != OK) {
         return err;
@@ -4358,8 +4288,8 @@
         OMX_VIDEO_PARAM_ANDROID_TEMPORALLAYERINGTYPE layering;
         InitOMXParams(&layering);
         layering.nPortIndex = kPortIndexOutput;
-        if (mOMX->getParameter(
-                        mNode, (OMX_INDEXTYPE)OMX_IndexParamAndroidVideoTemporalLayering,
+        if (mOMXNode->getParameter(
+                        (OMX_INDEXTYPE)OMX_IndexParamAndroidVideoTemporalLayering,
                         &layering, sizeof(layering)) == OK
                 && layering.eSupportedPatterns
                 && layering.nBLayerCountMax == 0) {
@@ -4367,8 +4297,8 @@
             h264type.nPFrames = setPFramesSpacing(iFrameInterval, frameRate, h264type.nBFrames);
             h264type.nAllowedPictureTypes &= ~OMX_VIDEO_PictureTypeB;
             ALOGI("disabling B-frames");
-            err = mOMX->setParameter(
-                    mNode, OMX_IndexParamVideoAvc, &h264type, sizeof(h264type));
+            err = mOMXNode->setParameter(
+                    OMX_IndexParamVideoAvc, &h264type, sizeof(h264type));
 
             if (err != OK) {
                 return err;
@@ -4403,8 +4333,8 @@
     hevcType.nPortIndex = kPortIndexOutput;
 
     status_t err = OK;
-    err = mOMX->getParameter(
-            mNode, (OMX_INDEXTYPE)OMX_IndexParamVideoHevc, &hevcType, sizeof(hevcType));
+    err = mOMXNode->getParameter(
+            (OMX_INDEXTYPE)OMX_IndexParamVideoHevc, &hevcType, sizeof(hevcType));
     if (err != OK) {
         return err;
     }
@@ -4427,8 +4357,8 @@
     // TODO: finer control?
     hevcType.nKeyFrameInterval = setPFramesSpacing(iFrameInterval, frameRate) + 1;
 
-    err = mOMX->setParameter(
-            mNode, (OMX_INDEXTYPE)OMX_IndexParamVideoHevc, &hevcType, sizeof(hevcType));
+    err = mOMXNode->setParameter(
+            (OMX_INDEXTYPE)OMX_IndexParamVideoHevc, &hevcType, sizeof(hevcType));
     if (err != OK) {
         return err;
     }
@@ -4496,8 +4426,8 @@
     OMX_VIDEO_PARAM_ANDROID_VP8ENCODERTYPE vp8type;
     InitOMXParams(&vp8type);
     vp8type.nPortIndex = kPortIndexOutput;
-    status_t err = mOMX->getParameter(
-            mNode, (OMX_INDEXTYPE)OMX_IndexParamVideoAndroidVp8Encoder,
+    status_t err = mOMXNode->getParameter(
+            (OMX_INDEXTYPE)OMX_IndexParamVideoAndroidVp8Encoder,
             &vp8type, sizeof(vp8type));
 
     if (err == OK) {
@@ -4517,8 +4447,8 @@
             vp8type.nMaxQuantizer = 63;
         }
 
-        err = mOMX->setParameter(
-                mNode, (OMX_INDEXTYPE)OMX_IndexParamVideoAndroidVp8Encoder,
+        err = mOMXNode->setParameter(
+                (OMX_INDEXTYPE)OMX_IndexParamVideoAndroidVp8Encoder,
                 &vp8type, sizeof(vp8type));
         if (err != OK) {
             ALOGW("Extended VP8 parameters set failed: %d", err);
@@ -4542,11 +4472,9 @@
 
     for (OMX_U32 index = 0; index <= kMaxIndicesToCheck; ++index) {
         params.nProfileIndex = index;
-        status_t err = mOMX->getParameter(
-                mNode,
+        status_t err = mOMXNode->getParameter(
                 OMX_IndexParamVideoProfileLevelQuerySupported,
-                &params,
-                sizeof(params));
+                &params, sizeof(params));
 
         if (err != OK) {
             return err;
@@ -4574,9 +4502,8 @@
     InitOMXParams(&bitrateType);
     bitrateType.nPortIndex = kPortIndexOutput;
 
-    status_t err = mOMX->getParameter(
-            mNode, OMX_IndexParamVideoBitrate,
-            &bitrateType, sizeof(bitrateType));
+    status_t err = mOMXNode->getParameter(
+            OMX_IndexParamVideoBitrate, &bitrateType, sizeof(bitrateType));
 
     if (err != OK) {
         return err;
@@ -4585,9 +4512,8 @@
     bitrateType.eControlRate = bitrateMode;
     bitrateType.nTargetBitrate = bitrate;
 
-    return mOMX->setParameter(
-            mNode, OMX_IndexParamVideoBitrate,
-            &bitrateType, sizeof(bitrateType));
+    return mOMXNode->setParameter(
+            OMX_IndexParamVideoBitrate, &bitrateType, sizeof(bitrateType));
 }
 
 status_t ACodec::setupErrorCorrectionParameters() {
@@ -4595,8 +4521,8 @@
     InitOMXParams(&errorCorrectionType);
     errorCorrectionType.nPortIndex = kPortIndexOutput;
 
-    status_t err = mOMX->getParameter(
-            mNode, OMX_IndexParamVideoErrorCorrection,
+    status_t err = mOMXNode->getParameter(
+            OMX_IndexParamVideoErrorCorrection,
             &errorCorrectionType, sizeof(errorCorrectionType));
 
     if (err != OK) {
@@ -4609,8 +4535,8 @@
     errorCorrectionType.bEnableDataPartitioning = OMX_FALSE;
     errorCorrectionType.bEnableRVLC = OMX_FALSE;
 
-    return mOMX->setParameter(
-            mNode, OMX_IndexParamVideoErrorCorrection,
+    return mOMXNode->setParameter(
+            OMX_IndexParamVideoErrorCorrection,
             &errorCorrectionType, sizeof(errorCorrectionType));
 }
 
@@ -4624,8 +4550,8 @@
 
     OMX_VIDEO_PORTDEFINITIONTYPE *video_def = &def.format.video;
 
-    status_t err = mOMX->getParameter(
-            mNode, OMX_IndexParamPortDefinition, &def, sizeof(def));
+    status_t err = mOMXNode->getParameter(
+            OMX_IndexParamPortDefinition, &def, sizeof(def));
     if (err != OK) {
         return err;
     }
@@ -4654,21 +4580,12 @@
         }
     }
 
-    err = mOMX->setParameter(
-            mNode, OMX_IndexParamPortDefinition, &def, sizeof(def));
+    err = mOMXNode->setParameter(
+            OMX_IndexParamPortDefinition, &def, sizeof(def));
 
     return err;
 }
 
-status_t ACodec::initNativeWindow() {
-    if (mNativeWindow != NULL) {
-        return mOMX->enableNativeBuffers(mNode, kPortIndexOutput, OMX_TRUE /* graphic */, OMX_TRUE);
-    }
-
-    mOMX->enableNativeBuffers(mNode, kPortIndexOutput, OMX_TRUE /* graphic */, OMX_FALSE);
-    return OK;
-}
-
 size_t ACodec::countBuffersOwnedByComponent(OMX_U32 portIndex) const {
     size_t n = 0;
 
@@ -4747,195 +4664,13 @@
     }
 }
 
-// static
-bool ACodec::describeDefaultColorFormat(DescribeColorFormat2Params &params) {
-    MediaImage2 &image = params.sMediaImage;
-    memset(&image, 0, sizeof(image));
-
-    image.mType = MediaImage2::MEDIA_IMAGE_TYPE_UNKNOWN;
-    image.mNumPlanes = 0;
-
-    const OMX_COLOR_FORMATTYPE fmt = params.eColorFormat;
-    image.mWidth = params.nFrameWidth;
-    image.mHeight = params.nFrameHeight;
-
-    // only supporting YUV420
-    if (fmt != OMX_COLOR_FormatYUV420Planar &&
-        fmt != OMX_COLOR_FormatYUV420PackedPlanar &&
-        fmt != OMX_COLOR_FormatYUV420SemiPlanar &&
-        fmt != OMX_COLOR_FormatYUV420PackedSemiPlanar &&
-        fmt != (OMX_COLOR_FORMATTYPE)HAL_PIXEL_FORMAT_YV12) {
-        ALOGW("do not know color format 0x%x = %d", fmt, fmt);
-        return false;
-    }
-
-    // TEMPORARY FIX for some vendors that advertise sliceHeight as 0
-    if (params.nStride != 0 && params.nSliceHeight == 0) {
-        ALOGW("using sliceHeight=%u instead of what codec advertised (=0)",
-                params.nFrameHeight);
-        params.nSliceHeight = params.nFrameHeight;
-    }
-
-    // we need stride and slice-height to be non-zero and sensible. These values were chosen to
-    // prevent integer overflows further down the line, and do not indicate support for
-    // 32kx32k video.
-    if (params.nStride == 0 || params.nSliceHeight == 0
-            || params.nStride > 32768 || params.nSliceHeight > 32768) {
-        ALOGW("cannot describe color format 0x%x = %d with stride=%u and sliceHeight=%u",
-                fmt, fmt, params.nStride, params.nSliceHeight);
-        return false;
-    }
-
-    // set-up YUV format
-    image.mType = MediaImage2::MEDIA_IMAGE_TYPE_YUV;
-    image.mNumPlanes = 3;
-    image.mBitDepth = 8;
-    image.mBitDepthAllocated = 8;
-    image.mPlane[image.Y].mOffset = 0;
-    image.mPlane[image.Y].mColInc = 1;
-    image.mPlane[image.Y].mRowInc = params.nStride;
-    image.mPlane[image.Y].mHorizSubsampling = 1;
-    image.mPlane[image.Y].mVertSubsampling = 1;
-
-    switch ((int)fmt) {
-        case HAL_PIXEL_FORMAT_YV12:
-            if (params.bUsingNativeBuffers) {
-                size_t ystride = align(params.nStride, 16);
-                size_t cstride = align(params.nStride / 2, 16);
-                image.mPlane[image.Y].mRowInc = ystride;
-
-                image.mPlane[image.V].mOffset = ystride * params.nSliceHeight;
-                image.mPlane[image.V].mColInc = 1;
-                image.mPlane[image.V].mRowInc = cstride;
-                image.mPlane[image.V].mHorizSubsampling = 2;
-                image.mPlane[image.V].mVertSubsampling = 2;
-
-                image.mPlane[image.U].mOffset = image.mPlane[image.V].mOffset
-                        + (cstride * params.nSliceHeight / 2);
-                image.mPlane[image.U].mColInc = 1;
-                image.mPlane[image.U].mRowInc = cstride;
-                image.mPlane[image.U].mHorizSubsampling = 2;
-                image.mPlane[image.U].mVertSubsampling = 2;
-                break;
-            } else {
-                // fall through as YV12 is used for YUV420Planar by some codecs
-            }
-
-        case OMX_COLOR_FormatYUV420Planar:
-        case OMX_COLOR_FormatYUV420PackedPlanar:
-            image.mPlane[image.U].mOffset = params.nStride * params.nSliceHeight;
-            image.mPlane[image.U].mColInc = 1;
-            image.mPlane[image.U].mRowInc = params.nStride / 2;
-            image.mPlane[image.U].mHorizSubsampling = 2;
-            image.mPlane[image.U].mVertSubsampling = 2;
-
-            image.mPlane[image.V].mOffset = image.mPlane[image.U].mOffset
-                    + (params.nStride * params.nSliceHeight / 4);
-            image.mPlane[image.V].mColInc = 1;
-            image.mPlane[image.V].mRowInc = params.nStride / 2;
-            image.mPlane[image.V].mHorizSubsampling = 2;
-            image.mPlane[image.V].mVertSubsampling = 2;
-            break;
-
-        case OMX_COLOR_FormatYUV420SemiPlanar:
-            // FIXME: NV21 for sw-encoder, NV12 for decoder and hw-encoder
-        case OMX_COLOR_FormatYUV420PackedSemiPlanar:
-            // NV12
-            image.mPlane[image.U].mOffset = params.nStride * params.nSliceHeight;
-            image.mPlane[image.U].mColInc = 2;
-            image.mPlane[image.U].mRowInc = params.nStride;
-            image.mPlane[image.U].mHorizSubsampling = 2;
-            image.mPlane[image.U].mVertSubsampling = 2;
-
-            image.mPlane[image.V].mOffset = image.mPlane[image.U].mOffset + 1;
-            image.mPlane[image.V].mColInc = 2;
-            image.mPlane[image.V].mRowInc = params.nStride;
-            image.mPlane[image.V].mHorizSubsampling = 2;
-            image.mPlane[image.V].mVertSubsampling = 2;
-            break;
-
-        default:
-            TRESPASS();
-    }
-    return true;
-}
-
-// static
-bool ACodec::describeColorFormat(
-        const sp<IOMX> &omx, IOMX::node_id node,
-        DescribeColorFormat2Params &describeParams)
-{
-    OMX_INDEXTYPE describeColorFormatIndex;
-    if (omx->getExtensionIndex(
-            node, "OMX.google.android.index.describeColorFormat",
-            &describeColorFormatIndex) == OK) {
-        DescribeColorFormatParams describeParamsV1(describeParams);
-        if (omx->getParameter(
-                node, describeColorFormatIndex,
-                &describeParamsV1, sizeof(describeParamsV1)) == OK) {
-            describeParams.initFromV1(describeParamsV1);
-            return describeParams.sMediaImage.mType != MediaImage2::MEDIA_IMAGE_TYPE_UNKNOWN;
-        }
-    } else if (omx->getExtensionIndex(
-            node, "OMX.google.android.index.describeColorFormat2", &describeColorFormatIndex) == OK
-               && omx->getParameter(
-            node, describeColorFormatIndex, &describeParams, sizeof(describeParams)) == OK) {
-        return describeParams.sMediaImage.mType != MediaImage2::MEDIA_IMAGE_TYPE_UNKNOWN;
-    }
-
-    return describeDefaultColorFormat(describeParams);
-}
-
-// static
-bool ACodec::isFlexibleColorFormat(
-         const sp<IOMX> &omx, IOMX::node_id node,
-         uint32_t colorFormat, bool usingNativeBuffers, OMX_U32 *flexibleEquivalent) {
-    DescribeColorFormat2Params describeParams;
-    InitOMXParams(&describeParams);
-    describeParams.eColorFormat = (OMX_COLOR_FORMATTYPE)colorFormat;
-    // reasonable dummy values
-    describeParams.nFrameWidth = 128;
-    describeParams.nFrameHeight = 128;
-    describeParams.nStride = 128;
-    describeParams.nSliceHeight = 128;
-    describeParams.bUsingNativeBuffers = (OMX_BOOL)usingNativeBuffers;
-
-    CHECK(flexibleEquivalent != NULL);
-
-    if (!describeColorFormat(omx, node, describeParams)) {
-        return false;
-    }
-
-    const MediaImage2 &img = describeParams.sMediaImage;
-    if (img.mType == MediaImage2::MEDIA_IMAGE_TYPE_YUV) {
-        if (img.mNumPlanes != 3
-                || img.mPlane[img.Y].mHorizSubsampling != 1
-                || img.mPlane[img.Y].mVertSubsampling != 1) {
-            return false;
-        }
-
-        // YUV 420
-        if (img.mPlane[img.U].mHorizSubsampling == 2
-                && img.mPlane[img.U].mVertSubsampling == 2
-                && img.mPlane[img.V].mHorizSubsampling == 2
-                && img.mPlane[img.V].mVertSubsampling == 2) {
-            // possible flexible YUV420 format
-            if (img.mBitDepth <= 8) {
-               *flexibleEquivalent = OMX_COLOR_FormatYUV420Flexible;
-               return true;
-            }
-        }
-    }
-    return false;
-}
-
 status_t ACodec::getPortFormat(OMX_U32 portIndex, sp<AMessage> &notify) {
     const char *niceIndex = portIndex == kPortIndexInput ? "input" : "output";
     OMX_PARAM_PORTDEFINITIONTYPE def;
     InitOMXParams(&def);
     def.nPortIndex = portIndex;
 
-    status_t err = mOMX->getParameter(mNode, OMX_IndexParamPortDefinition, &def, sizeof(def));
+    status_t err = mOMXNode->getParameter(OMX_IndexParamPortDefinition, &def, sizeof(def));
     if (err != OK) {
         return err;
     }
@@ -4969,7 +4704,7 @@
                         describeParams.nSliceHeight = videoDef->nSliceHeight;
                         describeParams.bUsingNativeBuffers = OMX_FALSE;
 
-                        if (describeColorFormat(mOMX, mNode, describeParams)) {
+                        if (DescribeColorFormat(mOMXNode, describeParams)) {
                             notify->setBuffer(
                                     "image-data",
                                     ABuffer::CreateAsCopy(
@@ -4994,8 +4729,7 @@
                         InitOMXParams(&rect);
                         rect.nPortIndex = portIndex;
 
-                        if (mOMX->getConfig(
-                                    mNode,
+                        if (mOMXNode->getConfig(
                                     (portIndex == kPortIndexOutput ?
                                             OMX_IndexConfigCommonOutputCrop :
                                             OMX_IndexConfigCommonInputCrop),
@@ -5051,8 +4785,7 @@
                     OMX_VIDEO_PARAM_ANDROID_VP8ENCODERTYPE vp8type;
                     InitOMXParams(&vp8type);
                     vp8type.nPortIndex = kPortIndexOutput;
-                    status_t err = mOMX->getParameter(
-                            mNode,
+                    status_t err = mOMXNode->getParameter(
                             (OMX_INDEXTYPE)OMX_IndexParamVideoAndroidVp8Encoder,
                             &vp8type,
                             sizeof(vp8type));
@@ -5121,8 +4854,8 @@
                     InitOMXParams(&params);
                     params.nPortIndex = portIndex;
 
-                    err = mOMX->getParameter(
-                            mNode, OMX_IndexParamAudioPcm, &params, sizeof(params));
+                    err = mOMXNode->getParameter(
+                            OMX_IndexParamAudioPcm, &params, sizeof(params));
                     if (err != OK) {
                         return err;
                     }
@@ -5169,8 +4902,8 @@
                     InitOMXParams(&params);
                     params.nPortIndex = portIndex;
 
-                    err = mOMX->getParameter(
-                            mNode, OMX_IndexParamAudioAac, &params, sizeof(params));
+                    err = mOMXNode->getParameter(
+                            OMX_IndexParamAudioAac, &params, sizeof(params));
                     if (err != OK) {
                         return err;
                     }
@@ -5187,8 +4920,8 @@
                     InitOMXParams(&params);
                     params.nPortIndex = portIndex;
 
-                    err = mOMX->getParameter(
-                            mNode, OMX_IndexParamAudioAmr, &params, sizeof(params));
+                    err = mOMXNode->getParameter(
+                            OMX_IndexParamAudioAmr, &params, sizeof(params));
                     if (err != OK) {
                         return err;
                     }
@@ -5210,8 +4943,8 @@
                     InitOMXParams(&params);
                     params.nPortIndex = portIndex;
 
-                    err = mOMX->getParameter(
-                            mNode, OMX_IndexParamAudioFlac, &params, sizeof(params));
+                    err = mOMXNode->getParameter(
+                            OMX_IndexParamAudioFlac, &params, sizeof(params));
                     if (err != OK) {
                         return err;
                     }
@@ -5228,8 +4961,8 @@
                     InitOMXParams(&params);
                     params.nPortIndex = portIndex;
 
-                    err = mOMX->getParameter(
-                            mNode, OMX_IndexParamAudioMp3, &params, sizeof(params));
+                    err = mOMXNode->getParameter(
+                            OMX_IndexParamAudioMp3, &params, sizeof(params));
                     if (err != OK) {
                         return err;
                     }
@@ -5246,8 +4979,8 @@
                     InitOMXParams(&params);
                     params.nPortIndex = portIndex;
 
-                    err = mOMX->getParameter(
-                            mNode, OMX_IndexParamAudioVorbis, &params, sizeof(params));
+                    err = mOMXNode->getParameter(
+                            OMX_IndexParamAudioVorbis, &params, sizeof(params));
                     if (err != OK) {
                         return err;
                     }
@@ -5264,8 +4997,8 @@
                     InitOMXParams(&params);
                     params.nPortIndex = portIndex;
 
-                    err = mOMX->getParameter(
-                            mNode, (OMX_INDEXTYPE)OMX_IndexParamAudioAndroidAc3,
+                    err = mOMXNode->getParameter(
+                            (OMX_INDEXTYPE)OMX_IndexParamAudioAndroidAc3,
                             &params, sizeof(params));
                     if (err != OK) {
                         return err;
@@ -5283,8 +5016,8 @@
                     InitOMXParams(&params);
                     params.nPortIndex = portIndex;
 
-                    err = mOMX->getParameter(
-                            mNode, (OMX_INDEXTYPE)OMX_IndexParamAudioAndroidEac3,
+                    err = mOMXNode->getParameter(
+                            (OMX_INDEXTYPE)OMX_IndexParamAudioAndroidEac3,
                             &params, sizeof(params));
                     if (err != OK) {
                         return err;
@@ -5302,8 +5035,8 @@
                     InitOMXParams(&params);
                     params.nPortIndex = portIndex;
 
-                    err = mOMX->getParameter(
-                            mNode, (OMX_INDEXTYPE)OMX_IndexParamAudioAndroidOpus,
+                    err = mOMXNode->getParameter(
+                            (OMX_INDEXTYPE)OMX_IndexParamAudioAndroidOpus,
                             &params, sizeof(params));
                     if (err != OK) {
                         return err;
@@ -5321,8 +5054,8 @@
                     InitOMXParams(&params);
                     params.nPortIndex = portIndex;
 
-                    err = mOMX->getParameter(
-                            mNode, (OMX_INDEXTYPE)OMX_IndexParamAudioPcm, &params, sizeof(params));
+                    err = mOMXNode->getParameter(
+                            (OMX_INDEXTYPE)OMX_IndexParamAudioPcm, &params, sizeof(params));
                     if (err != OK) {
                         return err;
                     }
@@ -5348,8 +5081,8 @@
                     InitOMXParams(&params);
                     params.nPortIndex = portIndex;
 
-                    err = mOMX->getParameter(
-                                mNode, OMX_IndexParamAudioPcm, &params, sizeof(params));
+                    err = mOMXNode->getParameter(
+                                OMX_IndexParamAudioPcm, &params, sizeof(params));
                     if (err != OK) {
                         return err;
                     }
@@ -5451,25 +5184,6 @@
     }
 }
 
-void ACodec::addKeyFormatChangesToRenderBufferNotification(sp<AMessage> &notify) {
-    AString mime;
-    CHECK(mOutputFormat->findString("mime", &mime));
-
-    if (mime == MEDIA_MIMETYPE_VIDEO_RAW && mNativeWindow != NULL) {
-        // notify renderer of the crop change and dataspace change
-        // NOTE: native window uses extended right-bottom coordinate
-        int32_t left, top, right, bottom;
-        if (mOutputFormat->findRect("crop", &left, &top, &right, &bottom)) {
-            notify->setRect("crop", left, top, right + 1, bottom + 1);
-        }
-
-        int32_t dataSpace;
-        if (mOutputFormat->findInt32("android._dataspace", &dataSpace)) {
-            notify->setInt32("dataspace", dataSpace);
-        }
-    }
-}
-
 void ACodec::sendFormatChange() {
     AString mime;
     CHECK(mOutputFormat->findString("mime", &mime));
@@ -5492,18 +5206,11 @@
         mSkipCutBuffer = new SkipCutBuffer(mEncoderDelay, mEncoderPadding, channelCount);
     }
 
-    sp<AMessage> notify = mNotify->dup();
-    notify->setInt32("what", kWhatOutputFormatChanged);
-    notify->setMessage("format", mOutputFormat);
-    notify->post();
-
     // mLastOutputFormat is not used when tunneled; doing this just to stay consistent
     mLastOutputFormat = mOutputFormat;
 }
 
 void ACodec::signalError(OMX_ERRORTYPE error, status_t internalError) {
-    sp<AMessage> notify = mNotify->dup();
-    notify->setInt32("what", CodecBase::kWhatError);
     ALOGE("signalError(omxError %#x, internalError %d)", error, internalError);
 
     if (internalError == UNKNOWN_ERROR) { // find better error code
@@ -5516,15 +5223,7 @@
     }
 
     mFatalError = true;
-
-    notify->setInt32("err", internalError);
-    notify->setInt32("actionCode", ACTION_CODE_FATAL); // could translate from OMX error.
-    notify->post();
-}
-
-////////////////////////////////////////////////////////////////////////////////
-
-ACodec::PortDescription::PortDescription() {
+    mCallback->onError(internalError, ACTION_CODE_FATAL);
 }
 
 status_t ACodec::requestIDRFrame() {
@@ -5538,42 +5237,12 @@
     params.nPortIndex = kPortIndexOutput;
     params.IntraRefreshVOP = OMX_TRUE;
 
-    return mOMX->setConfig(
-            mNode,
+    return mOMXNode->setConfig(
             OMX_IndexConfigVideoIntraVOPRefresh,
             &params,
             sizeof(params));
 }
 
-void ACodec::PortDescription::addBuffer(
-        IOMX::buffer_id id, const sp<ABuffer> &buffer,
-        const sp<NativeHandle> &handle, const sp<RefBase> &memRef) {
-    mBufferIDs.push_back(id);
-    mBuffers.push_back(buffer);
-    mHandles.push_back(handle);
-    mMemRefs.push_back(memRef);
-}
-
-size_t ACodec::PortDescription::countBuffers() {
-    return mBufferIDs.size();
-}
-
-IOMX::buffer_id ACodec::PortDescription::bufferIDAt(size_t index) const {
-    return mBufferIDs.itemAt(index);
-}
-
-sp<ABuffer> ACodec::PortDescription::bufferAt(size_t index) const {
-    return mBuffers.itemAt(index);
-}
-
-sp<NativeHandle> ACodec::PortDescription::handleAt(size_t index) const {
-    return mHandles.itemAt(index);
-}
-
-sp<RefBase> ACodec::PortDescription::memRefAt(size_t index) const {
-    return mMemRefs.itemAt(index);
-}
-
 ////////////////////////////////////////////////////////////////////////////////
 
 ACodec::BaseState::BaseState(ACodec *codec, const sp<AState> &parentState)
@@ -5646,6 +5315,7 @@
         {
             // This will result in kFlagSawMediaServerDie handling in MediaCodec.
             ALOGE("OMX/mediaserver died, signalling error!");
+            mCodec->mGraphicBufferSource.clear();
             mCodec->signalError(OMX_ErrorResourcesLost, DEAD_OBJECT);
             break;
         }
@@ -5654,12 +5324,10 @@
         {
             ALOGI("[%s] forcing the release of codec",
                     mCodec->mComponentName.c_str());
-            status_t err = mCodec->mOMX->freeNode(mCodec->mNode);
+            status_t err = mCodec->mOMXNode->freeNode();
             ALOGE_IF("[%s] failed to release codec instance: err=%d",
                        mCodec->mComponentName.c_str(), err);
-            sp<AMessage> notify = mCodec->mNotify->dup();
-            notify->setInt32("what", CodecBase::kWhatShutdownCompleted);
-            notify->post();
+            mCodec->mCallback->onReleaseCompleted();
             break;
         }
 
@@ -5673,16 +5341,17 @@
 bool ACodec::BaseState::checkOMXMessage(const sp<AMessage> &msg) {
     // there is a possibility that this is an outstanding message for a
     // codec that we have already destroyed
-    if (mCodec->mNode == 0) {
+    if (mCodec->mOMXNode == NULL) {
         ALOGI("ignoring message as already freed component: %s",
                 msg->debugString().c_str());
         return false;
     }
 
-    IOMX::node_id nodeID;
-    CHECK(msg->findInt32("node", (int32_t*)&nodeID));
-    if (nodeID != mCodec->mNode) {
-        ALOGE("Unexpected message for nodeID: %u, should have been %u", nodeID, mCodec->mNode);
+    int32_t generation;
+    CHECK(msg->findInt32("generation", (int32_t*)&generation));
+    if (generation != mCodec->mNodeGeneration) {
+        ALOGW("Unexpected message for component: %s, gen %u, cur %u",
+                msg->debugString().c_str(), generation, mCodec->mNodeGeneration);
         return false;
     }
     return true;
@@ -5800,11 +5469,7 @@
 bool ACodec::BaseState::onOMXEvent(
         OMX_EVENTTYPE event, OMX_U32 data1, OMX_U32 data2) {
     if (event == OMX_EventDataSpaceChanged) {
-        ColorAspects aspects;
-        aspects.mRange = (ColorAspects::Range)((data2 >> 24) & 0xFF);
-        aspects.mPrimaries = (ColorAspects::Primaries)((data2 >> 16) & 0xFF);
-        aspects.mMatrixCoeffs = (ColorAspects::MatrixCoeffs)((data2 >> 8) & 0xFF);
-        aspects.mTransfer = (ColorAspects::Transfer)(data2 & 0xFF);
+        ColorAspects aspects = ColorUtils::unpackToColorAspects(data2);
 
         mCodec->onDataSpaceChanged((android_dataspace)data1, aspects);
         return true;
@@ -5886,46 +5551,28 @@
 
     CHECK_EQ((int)info->mStatus, (int)BufferInfo::OWNED_BY_US);
 
-    sp<AMessage> notify = mCodec->mNotify->dup();
-    notify->setInt32("what", CodecBase::kWhatFillThisBuffer);
-    notify->setInt32("buffer-id", info->mBufferID);
-
-    info->mData->meta()->clear();
-    notify->setBuffer("buffer", info->mData);
-
-    sp<AMessage> reply = new AMessage(kWhatInputBufferFilled, mCodec);
-    reply->setInt32("buffer-id", info->mBufferID);
-
-    notify->setMessage("reply", reply);
-
-    notify->post();
-
+    info->mData->setFormat(mCodec->mInputFormat);
+    mCodec->mBufferChannel->fillThisBuffer(info->mBufferID);
+    info->mData.clear();
     info->mStatus = BufferInfo::OWNED_BY_UPSTREAM;
 }
 
 void ACodec::BaseState::onInputBufferFilled(const sp<AMessage> &msg) {
     IOMX::buffer_id bufferID;
     CHECK(msg->findInt32("buffer-id", (int32_t*)&bufferID));
-    sp<ABuffer> buffer;
+    sp<MediaCodecBuffer> buffer;
     int32_t err = OK;
     bool eos = false;
     PortMode mode = getPortMode(kPortIndexInput);
-
-    if (!msg->findBuffer("buffer", &buffer)) {
-        /* these are unfilled buffers returned by client */
-        CHECK(msg->findInt32("err", &err));
-
-        if (err == OK) {
-            /* buffers with no errors are returned on MediaCodec.flush */
-            mode = KEEP_BUFFERS;
-        } else {
-            ALOGV("[%s] saw error %d instead of an input buffer",
-                 mCodec->mComponentName.c_str(), err);
-            eos = true;
-        }
-
-        buffer.clear();
+    int32_t discarded = 0;
+    if (msg->findInt32("discarded", &discarded) && discarded) {
+        // these are unfilled buffers returned by client
+        // buffers are returned on MediaCodec.flush
+        mode = KEEP_BUFFERS;
     }
+    sp<RefBase> obj;
+    CHECK(msg->findObject("buffer", &obj));
+    buffer = static_cast<MediaCodecBuffer *>(obj.get());
 
     int32_t tmp;
     if (buffer != NULL && buffer->meta()->findInt32("eos", &tmp) && tmp) {
@@ -5943,6 +5590,7 @@
     }
 
     info->mStatus = BufferInfo::OWNED_BY_US;
+    info->mData = buffer;
 
     switch (mode) {
         case KEEP_BUFFERS:
@@ -5970,7 +5618,6 @@
 
                 OMX_U32 flags = OMX_BUFFERFLAG_ENDOFFRAME;
 
-                MetadataBufferType metaType = mCodec->mInputMetadataType;
                 int32_t isCSD = 0;
                 if (buffer->meta()->findInt32("csd", &isCSD) && isCSD != 0) {
                     if (mCodec->mIsLegacyVP9Decoder) {
@@ -5980,18 +5627,19 @@
                         break;
                     }
                     flags |= OMX_BUFFERFLAG_CODECCONFIG;
-                    metaType = kMetadataBufferTypeInvalid;
                 }
 
                 if (eos) {
                     flags |= OMX_BUFFERFLAG_EOS;
                 }
 
-                if (buffer != info->mCodecData) {
+                size_t size = buffer->size();
+                size_t offset = buffer->offset();
+                if (buffer->base() != info->mCodecData->base()) {
                     ALOGV("[%s] Needs to copy input data for buffer %u. (%p != %p)",
                          mCodec->mComponentName.c_str(),
                          bufferID,
-                         buffer.get(), info->mCodecData.get());
+                         buffer->base(), info->mCodecData->base());
 
                     sp<DataConverter> converter = mCodec->mConverter[kPortIndexInput];
                     if (converter == NULL || isCSD) {
@@ -6002,6 +5650,9 @@
                         mCodec->signalError(OMX_ErrorUndefined, err);
                         return;
                     }
+                    size = info->mCodecData->size();
+                } else {
+                    info->mCodecData->setRange(offset, size);
                 }
 
                 if (flags & OMX_BUFFERFLAG_CODECCONFIG) {
@@ -6042,54 +5693,53 @@
                 info->checkReadFence("onInputBufferFilled");
 
                 status_t err2 = OK;
-                switch (metaType) {
-                case kMetadataBufferTypeInvalid:
+                switch (mCodec->mPortMode[kPortIndexInput]) {
+                case IOMX::kPortModePresetByteBuffer:
+                case IOMX::kPortModePresetANWBuffer:
+                case IOMX::kPortModePresetSecureBuffer:
+                    {
+                        err2 = mCodec->mOMXNode->emptyBuffer(
+                            bufferID, info->mCodecData, flags, timeUs, info->mFenceFd);
+                    }
                     break;
 #ifndef OMX_ANDROID_COMPILE_AS_32BIT_ON_64BIT_PLATFORMS
-                case kMetadataBufferTypeNativeHandleSource:
+                case IOMX::kPortModeDynamicNativeHandle:
                     if (info->mCodecData->size() >= sizeof(VideoNativeHandleMetadata)) {
                         VideoNativeHandleMetadata *vnhmd =
                             (VideoNativeHandleMetadata*)info->mCodecData->base();
-                        err2 = mCodec->mOMX->updateNativeHandleInMeta(
-                                mCodec->mNode, kPortIndexInput,
-                                NativeHandle::create(vnhmd->pHandle, false /* ownsHandle */),
-                                bufferID);
+                        sp<NativeHandle> handle = NativeHandle::create(
+                                vnhmd->pHandle, false /* ownsHandle */);
+                        err2 = mCodec->mOMXNode->emptyBuffer(
+                            bufferID, handle, flags, timeUs, info->mFenceFd);
                     }
                     break;
-                case kMetadataBufferTypeANWBuffer:
+                case IOMX::kPortModeDynamicANWBuffer:
                     if (info->mCodecData->size() >= sizeof(VideoNativeMetadata)) {
                         VideoNativeMetadata *vnmd = (VideoNativeMetadata*)info->mCodecData->base();
-                        err2 = mCodec->mOMX->updateGraphicBufferInMeta(
-                                mCodec->mNode, kPortIndexInput,
-                                new GraphicBuffer(vnmd->pBuffer, false /* keepOwnership */),
-                                bufferID);
+                        sp<GraphicBuffer> graphicBuffer = new GraphicBuffer(
+                                vnmd->pBuffer, false /* keepOwnership */);
+                        err2 = mCodec->mOMXNode->emptyBuffer(
+                            bufferID, graphicBuffer, flags, timeUs, info->mFenceFd);
                     }
                     break;
 #endif
                 default:
                     ALOGW("Can't marshall %s data in %zu sized buffers in %zu-bit mode",
-                            asString(metaType), info->mCodecData->size(),
+                            asString(mCodec->mPortMode[kPortIndexInput]),
+                            info->mCodecData->size(),
                             sizeof(buffer_handle_t) * 8);
                     err2 = ERROR_UNSUPPORTED;
                     break;
                 }
 
-                if (err2 == OK) {
-                    err2 = mCodec->mOMX->emptyBuffer(
-                        mCodec->mNode,
-                        bufferID,
-                        0,
-                        info->mCodecData->size(),
-                        flags,
-                        timeUs,
-                        info->mFenceFd);
-                }
                 info->mFenceFd = -1;
                 if (err2 != OK) {
                     mCodec->signalError(OMX_ErrorUndefined, makeNoSideEffectStatus(err2));
                     return;
                 }
                 info->mStatus = BufferInfo::OWNED_BY_COMPONENT;
+                // Hold the reference while component is using the buffer.
+                info->mData = buffer;
 
                 if (!eos && err == OK) {
                     getMoreInputDataIfPossible();
@@ -6113,14 +5763,8 @@
                      mCodec->mComponentName.c_str(), bufferID);
 
                 info->checkReadFence("onInputBufferFilled");
-                status_t err2 = mCodec->mOMX->emptyBuffer(
-                        mCodec->mNode,
-                        bufferID,
-                        0,
-                        0,
-                        OMX_BUFFERFLAG_EOS,
-                        0,
-                        info->mFenceFd);
+                status_t err2 = mCodec->mOMXNode->emptyBuffer(
+                        bufferID, OMXBuffer::sPreset, OMX_BUFFERFLAG_EOS, 0, info->mFenceFd);
                 info->mFenceFd = -1;
                 if (err2 != OK) {
                     mCodec->signalError(OMX_ErrorUndefined, makeNoSideEffectStatus(err2));
@@ -6244,56 +5888,46 @@
                 ALOGV("[%s] calling fillBuffer %u",
                      mCodec->mComponentName.c_str(), info->mBufferID);
 
-                err = mCodec->mOMX->fillBuffer(mCodec->mNode, info->mBufferID, info->mFenceFd);
-                info->mFenceFd = -1;
+                err = mCodec->fillBuffer(info);
                 if (err != OK) {
                     mCodec->signalError(OMX_ErrorUndefined, makeNoSideEffectStatus(err));
                     return true;
                 }
-
-                info->mStatus = BufferInfo::OWNED_BY_COMPONENT;
                 break;
             }
 
-            sp<AMessage> reply =
-                new AMessage(kWhatOutputBufferDrained, mCodec);
+            sp<MediaCodecBuffer> buffer = info->mData;
 
             if (mCodec->mOutputFormat != mCodec->mLastOutputFormat && rangeLength > 0) {
                 // pretend that output format has changed on the first frame (we used to do this)
                 if (mCodec->mBaseOutputFormat == mCodec->mOutputFormat) {
                     mCodec->onOutputFormatChanged(mCodec->mOutputFormat);
                 }
-                mCodec->addKeyFormatChangesToRenderBufferNotification(reply);
                 mCodec->sendFormatChange();
-            } else if (rangeLength > 0 && mCodec->mNativeWindow != NULL) {
-                // If potentially rendering onto a surface, always save key format data (crop &
-                // data space) so that we can set it if and once the buffer is rendered.
-                mCodec->addKeyFormatChangesToRenderBufferNotification(reply);
             }
+            buffer->setFormat(mCodec->mOutputFormat);
 
-            if (mCodec->usingMetadataOnEncoderOutput()) {
+            if (mCodec->usingSecureBufferOnEncoderOutput()) {
                 native_handle_t *handle = NULL;
-                VideoNativeHandleMetadata &nativeMeta =
-                    *(VideoNativeHandleMetadata *)info->mData->data();
-                if (info->mData->size() >= sizeof(nativeMeta)
-                        && nativeMeta.eType == kMetadataBufferTypeNativeHandleSource) {
+                sp<SecureBuffer> secureBuffer = static_cast<SecureBuffer *>(buffer.get());
+                if (secureBuffer != NULL) {
 #ifdef OMX_ANDROID_COMPILE_AS_32BIT_ON_64BIT_PLATFORMS
                     // handle is only valid on 32-bit/mediaserver process
                     handle = NULL;
 #else
-                    handle = (native_handle_t *)nativeMeta.pHandle;
+                    handle = (native_handle_t *)secureBuffer->getDestinationPointer();
 #endif
                 }
-                info->mData->meta()->setPointer("handle", handle);
-                info->mData->meta()->setInt32("rangeOffset", rangeOffset);
-                info->mData->meta()->setInt32("rangeLength", rangeLength);
-            } else if (info->mData == info->mCodecData) {
-                info->mData->setRange(rangeOffset, rangeLength);
+                buffer->meta()->setPointer("handle", handle);
+                buffer->meta()->setInt32("rangeOffset", rangeOffset);
+                buffer->meta()->setInt32("rangeLength", rangeLength);
+            } else if (buffer->base() == info->mCodecData->base()) {
+                buffer->setRange(rangeOffset, rangeLength);
             } else {
                 info->mCodecData->setRange(rangeOffset, rangeLength);
                 // in this case we know that mConverter is not null
                 status_t err = mCodec->mConverter[kPortIndexOutput]->convert(
-                        info->mCodecData, info->mData);
+                        info->mCodecData, buffer);
                 if (err != OK) {
                     mCodec->signalError(OMX_ErrorUndefined, makeNoSideEffectStatus(err));
                     return true;
@@ -6308,32 +5942,20 @@
 #endif
 
             if (mCodec->mSkipCutBuffer != NULL) {
-                mCodec->mSkipCutBuffer->submit(info->mData);
+                mCodec->mSkipCutBuffer->submit(buffer);
             }
-            info->mData->meta()->setInt64("timeUs", timeUs);
+            buffer->meta()->setInt64("timeUs", timeUs);
 
-            sp<AMessage> notify = mCodec->mNotify->dup();
-            notify->setInt32("what", CodecBase::kWhatDrainThisBuffer);
-            notify->setInt32("buffer-id", info->mBufferID);
-            notify->setBuffer("buffer", info->mData);
-            notify->setInt32("flags", flags);
+            info->mData.clear();
 
-            reply->setInt32("buffer-id", info->mBufferID);
-
-            notify->setMessage("reply", reply);
-
-            notify->post();
+            mCodec->mBufferChannel->drainThisBuffer(info->mBufferID, flags);
 
             info->mStatus = BufferInfo::OWNED_BY_DOWNSTREAM;
 
             if (flags & OMX_BUFFERFLAG_EOS) {
                 ALOGV("[%s] saw output EOS", mCodec->mComponentName.c_str());
 
-                sp<AMessage> notify = mCodec->mNotify->dup();
-                notify->setInt32("what", CodecBase::kWhatEOS);
-                notify->setInt32("err", mCodec->mInputEOSResult);
-                notify->post();
-
+                mCodec->mCallback->onEos(mCodec->mInputEOSResult);
                 mCodec->mPortEOS[kPortIndexOutput] = true;
             }
             break;
@@ -6358,6 +5980,12 @@
 void ACodec::BaseState::onOutputBufferDrained(const sp<AMessage> &msg) {
     IOMX::buffer_id bufferID;
     CHECK(msg->findInt32("buffer-id", (int32_t*)&bufferID));
+    sp<RefBase> obj;
+    CHECK(msg->findObject("buffer", &obj));
+    sp<MediaCodecBuffer> buffer = static_cast<MediaCodecBuffer *>(obj.get());
+    int32_t discarded = 0;
+    msg->findInt32("discarded", &discarded);
+
     ssize_t index;
     BufferInfo *info = mCodec->findBufferByID(kPortIndexOutput, bufferID, &index);
     BufferInfo::Status status = BufferInfo::getSafeStatus(info);
@@ -6367,34 +5995,38 @@
         mCodec->signalError(OMX_ErrorUndefined, FAILED_TRANSACTION);
         return;
     }
-
-    android_native_rect_t crop;
-    if (msg->findRect("crop", &crop.left, &crop.top, &crop.right, &crop.bottom)
-            && memcmp(&crop, &mCodec->mLastNativeWindowCrop, sizeof(crop)) != 0) {
-        mCodec->mLastNativeWindowCrop = crop;
-        status_t err = native_window_set_crop(mCodec->mNativeWindow.get(), &crop);
-        ALOGW_IF(err != NO_ERROR, "failed to set crop: %d", err);
-    }
-
-    int32_t dataSpace;
-    if (msg->findInt32("dataspace", &dataSpace)
-            && dataSpace != mCodec->mLastNativeWindowDataSpace) {
-        status_t err = native_window_set_buffers_data_space(
-                mCodec->mNativeWindow.get(), (android_dataspace)dataSpace);
-        mCodec->mLastNativeWindowDataSpace = dataSpace;
-        ALOGW_IF(err != NO_ERROR, "failed to set dataspace: %d", err);
-    }
-
+    info->mData = buffer;
     int32_t render;
     if (mCodec->mNativeWindow != NULL
             && msg->findInt32("render", &render) && render != 0
-            && info->mData != NULL && info->mData->size() != 0) {
+            && !discarded && buffer->size() != 0) {
         ATRACE_NAME("render");
         // The client wants this buffer to be rendered.
 
+        android_native_rect_t crop;
+        if (buffer->format()->findRect("crop", &crop.left, &crop.top, &crop.right, &crop.bottom)) {
+            // NOTE: native window uses extended right-bottom coordinate
+            ++crop.right;
+            ++crop.bottom;
+            if (memcmp(&crop, &mCodec->mLastNativeWindowCrop, sizeof(crop)) != 0) {
+                mCodec->mLastNativeWindowCrop = crop;
+                status_t err = native_window_set_crop(mCodec->mNativeWindow.get(), &crop);
+                ALOGW_IF(err != NO_ERROR, "failed to set crop: %d", err);
+            }
+        }
+
+        int32_t dataSpace;
+        if (buffer->format()->findInt32("android._dataspace", &dataSpace)
+                && dataSpace != mCodec->mLastNativeWindowDataSpace) {
+            status_t err = native_window_set_buffers_data_space(
+                    mCodec->mNativeWindow.get(), (android_dataspace)dataSpace);
+            mCodec->mLastNativeWindowDataSpace = dataSpace;
+            ALOGW_IF(err != NO_ERROR, "failed to set dataspace: %d", err);
+        }
+
         // save buffers sent to the surface so we can get render time when they return
         int64_t mediaTimeUs = -1;
-        info->mData->meta()->findInt64("timeUs", &mediaTimeUs);
+        buffer->meta()->findInt64("timeUs", &mediaTimeUs);
         if (mediaTimeUs >= 0) {
             mCodec->mRenderTracker.onFrameQueued(
                     mediaTimeUs, info->mGraphicBuffer, new Fence(::dup(info->mFenceFd)));
@@ -6403,7 +6035,7 @@
         int64_t timestampNs = 0;
         if (!msg->findInt64("timestampNs", &timestampNs)) {
             // use media timestamp if client did not request a specific render timestamp
-            if (info->mData->meta()->findInt64("timeUs", &timestampNs)) {
+            if (buffer->meta()->findInt64("timeUs", &timestampNs)) {
                 ALOGV("using buffer PTS of %lld", (long long)timestampNs);
                 timestampNs *= 1000;
             }
@@ -6427,8 +6059,7 @@
             info->mIsReadFence = false;
         }
     } else {
-        if (mCodec->mNativeWindow != NULL &&
-            (info->mData == NULL || info->mData->size() != 0)) {
+        if (mCodec->mNativeWindow != NULL && (discarded || buffer->size() != 0)) {
             // move read fence into write fence to avoid clobbering
             info->mIsReadFence = false;
             ATRACE_NAME("frame-drop");
@@ -6466,12 +6097,8 @@
                     ALOGV("[%s] calling fillBuffer %u",
                          mCodec->mComponentName.c_str(), info->mBufferID);
                     info->checkWriteFence("onOutputBufferDrained::RESUBMIT_BUFFERS");
-                    status_t err = mCodec->mOMX->fillBuffer(
-                            mCodec->mNode, info->mBufferID, info->mFenceFd);
-                    info->mFenceFd = -1;
-                    if (err == OK) {
-                        info->mStatus = BufferInfo::OWNED_BY_COMPONENT;
-                    } else {
+                    status_t err = mCodec->fillBuffer(info);
+                    if (err != OK) {
                         mCodec->signalError(OMX_ErrorUndefined, makeNoSideEffectStatus(err));
                     }
                 }
@@ -6504,19 +6131,26 @@
     ALOGV("Now uninitialized");
 
     if (mDeathNotifier != NULL) {
-        mCodec->mNodeBinder->unlinkToDeath(mDeathNotifier);
+        if (mCodec->mOMXNode != NULL) {
+            if (mCodec->getTrebleFlag()) {
+                auto tOmxNode = mCodec->mOMXNode->getHalInterface();
+                tOmxNode->unlinkToDeath(mDeathNotifier);
+            } else {
+                sp<IBinder> binder = IInterface::asBinder(mCodec->mOMXNode);
+                binder->unlinkToDeath(mDeathNotifier);
+            }
+        }
         mDeathNotifier.clear();
     }
 
     mCodec->mUsingNativeWindow = false;
     mCodec->mNativeWindow.clear();
     mCodec->mNativeWindowUsageBits = 0;
-    mCodec->mNode = 0;
     mCodec->mOMX.clear();
-    mCodec->mQuirks = 0;
+    mCodec->mOMXNode.clear();
     mCodec->mFlags = 0;
-    mCodec->mInputMetadataType = kMetadataBufferTypeInvalid;
-    mCodec->mOutputMetadataType = kMetadataBufferTypeInvalid;
+    mCodec->mPortMode[kPortIndexInput] = IOMX::kPortModePresetByteBuffer;
+    mCodec->mPortMode[kPortIndexOutput] = IOMX::kPortModePresetByteBuffer;
     mCodec->mConverter[0].clear();
     mCodec->mConverter[1].clear();
     mCodec->mComponentName.clear();
@@ -6548,21 +6182,18 @@
                         "keepComponentAllocated", &keepComponentAllocated));
             ALOGW_IF(keepComponentAllocated,
                      "cannot keep component allocated on shutdown in Uninitialized state");
-
-            sp<AMessage> notify = mCodec->mNotify->dup();
-            notify->setInt32("what", CodecBase::kWhatShutdownCompleted);
-            notify->post();
-
+            if (keepComponentAllocated) {
+                mCodec->mCallback->onStopCompleted();
+            } else {
+                mCodec->mCallback->onReleaseCompleted();
+            }
             handled = true;
             break;
         }
 
         case ACodec::kWhatFlush:
         {
-            sp<AMessage> notify = mCodec->mNotify->dup();
-            notify->setInt32("what", CodecBase::kWhatFlushCompleted);
-            notify->post();
-
+            mCodec->mCallback->onFlushCompleted();
             handled = true;
             break;
         }
@@ -6592,13 +6223,15 @@
 bool ACodec::UninitializedState::onAllocateComponent(const sp<AMessage> &msg) {
     ALOGV("onAllocateComponent");
 
-    CHECK(mCodec->mNode == 0);
+    CHECK(mCodec->mOMXNode == NULL);
 
     OMXClient client;
-    if (client.connect() != OK) {
+    bool trebleFlag;
+    if (client.connect(&trebleFlag) != OK) {
         mCodec->signalError(OMX_ErrorUndefined, NO_INIT);
         return false;
     }
+    mCodec->setTrebleFlag(trebleFlag);
 
     sp<IOMX> omx = client.interface();
 
@@ -6631,7 +6264,7 @@
     }
 
     sp<CodecObserver> observer = new CodecObserver;
-    IOMX::node_id node = 0;
+    sp<IOMXNode> omxNode;
 
     status_t err = NAME_NOT_FOUND;
     for (size_t matchIndex = 0; matchIndex < matchingCodecs.size();
@@ -6642,7 +6275,7 @@
         pid_t tid = gettid();
         int prevPriority = androidGetThreadPriority(tid);
         androidSetThreadPriority(tid, ANDROID_PRIORITY_FOREGROUND);
-        err = omx->allocateNode(componentName.c_str(), observer, &mCodec->mNodeBinder, &node);
+        err = omx->allocateNode(componentName.c_str(), observer, &omxNode);
         androidSetThreadPriority(tid, prevPriority);
 
         if (err == OK) {
@@ -6651,10 +6284,10 @@
             ALOGW("Allocating component '%s' failed, try next one.", componentName.c_str());
         }
 
-        node = 0;
+        omxNode = NULL;
     }
 
-    if (node == 0) {
+    if (omxNode == NULL) {
         if (!mime.empty()) {
             ALOGE("Unable to instantiate a %scoder for type '%s' with err %#x.",
                     encoder ? "en" : "de", mime.c_str(), err);
@@ -6667,14 +6300,21 @@
     }
 
     mDeathNotifier = new DeathNotifier(notify);
-    if (mCodec->mNodeBinder == NULL ||
-            mCodec->mNodeBinder->linkToDeath(mDeathNotifier) != OK) {
-        // This was a local binder, if it dies so do we, we won't care
-        // about any notifications in the afterlife.
-        mDeathNotifier.clear();
+    if (mCodec->getTrebleFlag()) {
+        auto tOmxNode = omxNode->getHalInterface();
+        if (!tOmxNode->linkToDeath(mDeathNotifier, 0)) {
+            mDeathNotifier.clear();
+        }
+    } else {
+        if (IInterface::asBinder(omxNode)->linkToDeath(mDeathNotifier) != OK) {
+            // This was a local binder, if it dies so do we, we won't care
+            // about any notifications in the afterlife.
+            mDeathNotifier.clear();
+        }
     }
 
     notify = new AMessage(kWhatOMXMessageList, mCodec);
+    notify->setInt32("generation", ++mCodec->mNodeGeneration);
     observer->setNotificationMessage(notify);
 
     mCodec->mComponentName = componentName;
@@ -6687,17 +6327,10 @@
         mCodec->mFlags |= kFlagPushBlankBuffersToNativeWindowOnShutdown;
     }
 
-    mCodec->mQuirks = quirks;
+    omxNode->setQuirks(quirks);
     mCodec->mOMX = omx;
-    mCodec->mNode = node;
-
-    {
-        sp<AMessage> notify = mCodec->mNotify->dup();
-        notify->setInt32("what", CodecBase::kWhatComponentAllocated);
-        notify->setString("componentName", mCodec->mComponentName.c_str());
-        notify->post();
-    }
-
+    mCodec->mOMXNode = omxNode;
+    mCodec->mCallback->onComponentAllocated(mCodec->mComponentName.c_str());
     mCodec->changeState(mCodec->mLoadedState);
 
     return true;
@@ -6723,6 +6356,7 @@
     mCodec->mInputFormat.clear();
     mCodec->mOutputFormat.clear();
     mCodec->mBaseOutputFormat.clear();
+    mCodec->mGraphicBufferSource.clear();
 
     if (mCodec->mShutdownInProgress) {
         bool keepComponentAllocated = mCodec->mKeepComponentAllocated;
@@ -6739,15 +6373,17 @@
 
 void ACodec::LoadedState::onShutdown(bool keepComponentAllocated) {
     if (!keepComponentAllocated) {
-        (void)mCodec->mOMX->freeNode(mCodec->mNode);
+        (void)mCodec->mOMXNode->freeNode();
 
         mCodec->changeState(mCodec->mUninitializedState);
     }
 
     if (mCodec->mExplicitShutdown) {
-        sp<AMessage> notify = mCodec->mNotify->dup();
-        notify->setInt32("what", CodecBase::kWhatShutdownCompleted);
-        notify->post();
+        if (keepComponentAllocated) {
+            mCodec->mCallback->onStopCompleted();
+        } else {
+            mCodec->mCallback->onReleaseCompleted();
+        }
         mCodec->mExplicitShutdown = false;
     }
 }
@@ -6799,10 +6435,7 @@
 
         case ACodec::kWhatFlush:
         {
-            sp<AMessage> notify = mCodec->mNotify->dup();
-            notify->setInt32("what", CodecBase::kWhatFlushCompleted);
-            notify->post();
-
+            mCodec->mCallback->onFlushCompleted();
             handled = true;
             break;
         }
@@ -6818,7 +6451,7 @@
         const sp<AMessage> &msg) {
     ALOGV("onConfigureComponent");
 
-    CHECK(mCodec->mNode != 0);
+    CHECK(mCodec->mOMXNode != NULL);
 
     status_t err = OK;
     AString mime;
@@ -6835,109 +6468,100 @@
         return false;
     }
 
-    {
-        sp<AMessage> notify = mCodec->mNotify->dup();
-        notify->setInt32("what", CodecBase::kWhatComponentConfigured);
-        notify->setMessage("input-format", mCodec->mInputFormat);
-        notify->setMessage("output-format", mCodec->mOutputFormat);
-        notify->post();
-    }
+    mCodec->mCallback->onComponentConfigured(mCodec->mInputFormat, mCodec->mOutputFormat);
 
     return true;
 }
 
 status_t ACodec::LoadedState::setupInputSurface() {
-    status_t err = OK;
+    if (mCodec->mGraphicBufferSource == NULL) {
+        return BAD_VALUE;
+    }
+
+    android_dataspace dataSpace;
+    status_t err =
+        mCodec->setInitialColorAspectsForVideoEncoderSurfaceAndGetDataSpace(&dataSpace);
+    if (err != OK) {
+        ALOGE("Failed to get default data space");
+        return err;
+    }
+
+    err = statusFromBinderStatus(
+            mCodec->mGraphicBufferSource->configure(mCodec->mOMXNode, dataSpace));
+    if (err != OK) {
+        ALOGE("[%s] Unable to configure for node (err %d)",
+              mCodec->mComponentName.c_str(), err);
+        return err;
+    }
 
     if (mCodec->mRepeatFrameDelayUs > 0ll) {
-        err = mCodec->mOMX->setInternalOption(
-                mCodec->mNode,
-                kPortIndexInput,
-                IOMX::INTERNAL_OPTION_REPEAT_PREVIOUS_FRAME_DELAY,
-                &mCodec->mRepeatFrameDelayUs,
-                sizeof(mCodec->mRepeatFrameDelayUs));
+        err = statusFromBinderStatus(
+                mCodec->mGraphicBufferSource->setRepeatPreviousFrameDelayUs(
+                        mCodec->mRepeatFrameDelayUs));
 
         if (err != OK) {
             ALOGE("[%s] Unable to configure option to repeat previous "
                   "frames (err %d)",
-                  mCodec->mComponentName.c_str(),
-                  err);
+                  mCodec->mComponentName.c_str(), err);
             return err;
         }
     }
 
     if (mCodec->mMaxPtsGapUs > 0ll) {
-        err = mCodec->mOMX->setInternalOption(
-                mCodec->mNode,
-                kPortIndexInput,
-                IOMX::INTERNAL_OPTION_MAX_TIMESTAMP_GAP,
-                &mCodec->mMaxPtsGapUs,
-                sizeof(mCodec->mMaxPtsGapUs));
+        OMX_PARAM_U32TYPE maxPtsGapParams;
+        InitOMXParams(&maxPtsGapParams);
+        maxPtsGapParams.nPortIndex = kPortIndexInput;
+        maxPtsGapParams.nU32 = (uint32_t) mCodec->mMaxPtsGapUs;
+
+        err = mCodec->mOMXNode->setParameter(
+                (OMX_INDEXTYPE)OMX_IndexParamMaxFrameDurationForBitrateControl,
+                &maxPtsGapParams, sizeof(maxPtsGapParams));
 
         if (err != OK) {
             ALOGE("[%s] Unable to configure max timestamp gap (err %d)",
-                    mCodec->mComponentName.c_str(),
-                    err);
+                    mCodec->mComponentName.c_str(), err);
             return err;
         }
     }
 
     if (mCodec->mMaxFps > 0) {
-        err = mCodec->mOMX->setInternalOption(
-                mCodec->mNode,
-                kPortIndexInput,
-                IOMX::INTERNAL_OPTION_MAX_FPS,
-                &mCodec->mMaxFps,
-                sizeof(mCodec->mMaxFps));
+        err = statusFromBinderStatus(
+                mCodec->mGraphicBufferSource->setMaxFps(mCodec->mMaxFps));
 
         if (err != OK) {
             ALOGE("[%s] Unable to configure max fps (err %d)",
-                    mCodec->mComponentName.c_str(),
-                    err);
+                    mCodec->mComponentName.c_str(), err);
             return err;
         }
     }
 
     if (mCodec->mTimePerCaptureUs > 0ll
             && mCodec->mTimePerFrameUs > 0ll) {
-        int64_t timeLapse[2];
-        timeLapse[0] = mCodec->mTimePerFrameUs;
-        timeLapse[1] = mCodec->mTimePerCaptureUs;
-        err = mCodec->mOMX->setInternalOption(
-                mCodec->mNode,
-                kPortIndexInput,
-                IOMX::INTERNAL_OPTION_TIME_LAPSE,
-                &timeLapse[0],
-                sizeof(timeLapse));
+        err = statusFromBinderStatus(
+                mCodec->mGraphicBufferSource->setTimeLapseConfig(
+                        mCodec->mTimePerFrameUs, mCodec->mTimePerCaptureUs));
 
         if (err != OK) {
             ALOGE("[%s] Unable to configure time lapse (err %d)",
-                    mCodec->mComponentName.c_str(),
-                    err);
+                    mCodec->mComponentName.c_str(), err);
             return err;
         }
     }
 
     if (mCodec->mCreateInputBuffersSuspended) {
-        bool suspend = true;
-        err = mCodec->mOMX->setInternalOption(
-                mCodec->mNode,
-                kPortIndexInput,
-                IOMX::INTERNAL_OPTION_SUSPEND,
-                &suspend,
-                sizeof(suspend));
+        err = statusFromBinderStatus(
+                mCodec->mGraphicBufferSource->setSuspend(true, -1));
 
         if (err != OK) {
             ALOGE("[%s] Unable to configure option to suspend (err %d)",
-                  mCodec->mComponentName.c_str(),
-                  err);
+                  mCodec->mComponentName.c_str(), err);
             return err;
         }
     }
 
     uint32_t usageBits;
-    if (mCodec->mOMX->getParameter(
-            mCodec->mNode, (OMX_INDEXTYPE)OMX_IndexParamConsumerUsageBits,
+    if (mCodec->mOMXNode->getParameter(
+            (OMX_INDEXTYPE)OMX_IndexParamConsumerUsageBits,
             &usageBits, sizeof(usageBits)) == OK) {
         mCodec->mInputFormat->setInt32(
                 "using-sw-read-often", !!(usageBits & GRALLOC_USAGE_SW_READ_OFTEN));
@@ -6945,9 +6569,14 @@
 
     sp<ABuffer> colorAspectsBuffer;
     if (mCodec->mInputFormat->findBuffer("android._color-aspects", &colorAspectsBuffer)) {
-        err = mCodec->mOMX->setInternalOption(
-                mCodec->mNode, kPortIndexInput, IOMX::INTERNAL_OPTION_COLOR_ASPECTS,
-                colorAspectsBuffer->base(), colorAspectsBuffer->capacity());
+        if (colorAspectsBuffer->size() != sizeof(ColorAspects)) {
+            return INVALID_OPERATION;
+        }
+
+        err = statusFromBinderStatus(
+                mCodec->mGraphicBufferSource->setColorAspects(ColorUtils::packToU32(
+                        *(ColorAspects *)colorAspectsBuffer->base())));
+
         if (err != OK) {
             ALOGE("[%s] Unable to configure color aspects (err %d)",
                   mCodec->mComponentName.c_str(), err);
@@ -6961,33 +6590,18 @@
         const sp<AMessage> & /* msg */) {
     ALOGV("onCreateInputSurface");
 
-    sp<AMessage> notify = mCodec->mNotify->dup();
-    notify->setInt32("what", CodecBase::kWhatInputSurfaceCreated);
-
-    android_dataspace dataSpace;
-    status_t err =
-        mCodec->setInitialColorAspectsForVideoEncoderSurfaceAndGetDataSpace(&dataSpace);
-    notify->setMessage("input-format", mCodec->mInputFormat);
-    notify->setMessage("output-format", mCodec->mOutputFormat);
-
     sp<IGraphicBufferProducer> bufferProducer;
-    if (err == OK) {
-        mCodec->mInputMetadataType = kMetadataBufferTypeANWBuffer;
-        err = mCodec->mOMX->createInputSurface(
-                mCodec->mNode, kPortIndexInput, dataSpace, &bufferProducer,
-                &mCodec->mInputMetadataType);
-        // framework uses ANW buffers internally instead of gralloc handles
-        if (mCodec->mInputMetadataType == kMetadataBufferTypeGrallocSource) {
-            mCodec->mInputMetadataType = kMetadataBufferTypeANWBuffer;
-        }
-    }
+    status_t err = mCodec->mOMX->createInputSurface(
+            &bufferProducer, &mCodec->mGraphicBufferSource);
 
     if (err == OK) {
         err = setupInputSurface();
     }
 
     if (err == OK) {
-        notify->setObject("input-surface",
+        mCodec->mCallback->onInputSurfaceCreated(
+                mCodec->mInputFormat,
+                mCodec->mOutputFormat,
                 new BufferProducerWrapper(bufferProducer));
     } else {
         // Can't use mCodec->signalError() here -- MediaCodec won't forward
@@ -6995,59 +6609,37 @@
         // send a kWhatInputSurfaceCreated with an error value instead.
         ALOGE("[%s] onCreateInputSurface returning error %d",
                 mCodec->mComponentName.c_str(), err);
-        notify->setInt32("err", err);
+        mCodec->mCallback->onInputSurfaceCreationFailed(err);
     }
-    notify->post();
 }
 
-void ACodec::LoadedState::onSetInputSurface(
-        const sp<AMessage> &msg) {
+void ACodec::LoadedState::onSetInputSurface(const sp<AMessage> &msg) {
     ALOGV("onSetInputSurface");
 
-    sp<AMessage> notify = mCodec->mNotify->dup();
-    notify->setInt32("what", CodecBase::kWhatInputSurfaceAccepted);
-
     sp<RefBase> obj;
     CHECK(msg->findObject("input-surface", &obj));
     sp<PersistentSurface> surface = static_cast<PersistentSurface *>(obj.get());
+    mCodec->mGraphicBufferSource = surface->getBufferSource();
 
-    android_dataspace dataSpace;
-    status_t err =
-        mCodec->setInitialColorAspectsForVideoEncoderSurfaceAndGetDataSpace(&dataSpace);
-    notify->setMessage("input-format", mCodec->mInputFormat);
-    notify->setMessage("output-format", mCodec->mOutputFormat);
+    status_t err = setupInputSurface();
 
     if (err == OK) {
-        mCodec->mInputMetadataType = kMetadataBufferTypeANWBuffer;
-        err = mCodec->mOMX->setInputSurface(
-                mCodec->mNode, kPortIndexInput, surface->getBufferConsumer(),
-                &mCodec->mInputMetadataType);
-        // framework uses ANW buffers internally instead of gralloc handles
-        if (mCodec->mInputMetadataType == kMetadataBufferTypeGrallocSource) {
-            mCodec->mInputMetadataType = kMetadataBufferTypeANWBuffer;
-        }
-    }
-
-    if (err == OK) {
-        surface->getBufferConsumer()->setDefaultBufferDataSpace(dataSpace);
-        err = setupInputSurface();
-    }
-
-    if (err != OK) {
+        mCodec->mCallback->onInputSurfaceAccepted(
+                mCodec->mInputFormat, mCodec->mOutputFormat);
+    } else {
         // Can't use mCodec->signalError() here -- MediaCodec won't forward
         // the error through because it's in the "configured" state.  We
         // send a kWhatInputSurfaceAccepted with an error value instead.
         ALOGE("[%s] onSetInputSurface returning error %d",
                 mCodec->mComponentName.c_str(), err);
-        notify->setInt32("err", err);
+        mCodec->mCallback->onInputSurfaceDeclined(err);
     }
-    notify->post();
 }
 
 void ACodec::LoadedState::onStart() {
     ALOGV("onStart");
 
-    status_t err = mCodec->mOMX->sendCommand(mCodec->mNode, OMX_CommandStateSet, OMX_StateIdle);
+    status_t err = mCodec->mOMXNode->sendCommand(OMX_CommandStateSet, OMX_StateIdle);
     if (err != OK) {
         mCodec->signalError(OMX_ErrorUndefined, makeNoSideEffectStatus(err));
     } else {
@@ -7072,8 +6664,8 @@
 
         mCodec->signalError(OMX_ErrorUndefined, makeNoSideEffectStatus(err));
 
-        mCodec->mOMX->sendCommand(
-                mCodec->mNode, OMX_CommandStateSet, OMX_StateLoaded);
+        mCodec->mOMXNode->sendCommand(
+                OMX_CommandStateSet, OMX_StateLoaded);
         if (mCodec->allYourBuffersAreBelongToUs(kPortIndexInput)) {
             mCodec->freeBuffersOnPort(kPortIndexInput);
         }
@@ -7087,12 +6679,18 @@
 
 status_t ACodec::LoadedToIdleState::allocateBuffers() {
     status_t err = mCodec->allocateBuffersOnPort(kPortIndexInput);
-
     if (err != OK) {
         return err;
     }
 
-    return mCodec->allocateBuffersOnPort(kPortIndexOutput);
+    err = mCodec->allocateBuffersOnPort(kPortIndexOutput);
+    if (err != OK) {
+        return err;
+    }
+
+    mCodec->mCallback->onStartCompleted();
+
+    return OK;
 }
 
 bool ACodec::LoadedToIdleState::onMessageReceived(const sp<AMessage> &msg) {
@@ -7119,9 +6717,7 @@
         case kWhatFlush:
         {
             // We haven't even started yet, so we're flushed alright...
-            sp<AMessage> notify = mCodec->mNotify->dup();
-            notify->setInt32("what", CodecBase::kWhatFlushCompleted);
-            notify->post();
+            mCodec->mCallback->onFlushCompleted();
             return true;
         }
 
@@ -7145,8 +6741,8 @@
             }
 
             if (err == OK) {
-                err = mCodec->mOMX->sendCommand(
-                    mCodec->mNode, OMX_CommandStateSet, OMX_StateExecuting);
+                err = mCodec->mOMXNode->sendCommand(
+                    OMX_CommandStateSet, OMX_StateExecuting);
             }
 
             if (err != OK) {
@@ -7191,10 +6787,7 @@
         case kWhatFlush:
         {
             // We haven't even started yet, so we're flushed alright...
-            sp<AMessage> notify = mCodec->mNotify->dup();
-            notify->setInt32("what", CodecBase::kWhatFlushCompleted);
-            notify->post();
-
+            mCodec->mCallback->onFlushCompleted();
             return true;
         }
 
@@ -7289,14 +6882,11 @@
         ALOGV("[%s] calling fillBuffer %u", mCodec->mComponentName.c_str(), info->mBufferID);
 
         info->checkWriteFence("submitRegularOutputBuffers");
-        status_t err = mCodec->mOMX->fillBuffer(mCodec->mNode, info->mBufferID, info->mFenceFd);
-        info->mFenceFd = -1;
+        status_t err = mCodec->fillBuffer(info);
         if (err != OK) {
             failed = true;
             break;
         }
-
-        info->mStatus = BufferInfo::OWNED_BY_COMPONENT;
     }
 
     if (failed) {
@@ -7357,8 +6947,8 @@
 
             mActive = false;
 
-            status_t err = mCodec->mOMX->sendCommand(
-                    mCodec->mNode, OMX_CommandStateSet, OMX_StateIdle);
+            status_t err = mCodec->mOMXNode->sendCommand(
+                    OMX_CommandStateSet, OMX_StateIdle);
             if (err != OK) {
                 if (keepComponentAllocated) {
                     mCodec->signalError(OMX_ErrorUndefined, FAILED_TRANSACTION);
@@ -7384,7 +6974,7 @@
 
             mActive = false;
 
-            status_t err = mCodec->mOMX->sendCommand(mCodec->mNode, OMX_CommandFlush, OMX_ALL);
+            status_t err = mCodec->mOMXNode->sendCommand(OMX_CommandFlush, OMX_ALL);
             if (err != OK) {
                 mCodec->signalError(OMX_ErrorUndefined, FAILED_TRANSACTION);
             } else {
@@ -7467,8 +7057,7 @@
         configParams.nPortIndex = kPortIndexOutput;
         configParams.nEncodeBitrate = videoBitrate;
 
-        status_t err = mOMX->setConfig(
-                mNode,
+        status_t err = mOMXNode->setConfig(
                 OMX_IndexConfigVideoBitrate,
                 &configParams,
                 sizeof(configParams));
@@ -7483,12 +7072,14 @@
 
     int64_t timeOffsetUs;
     if (params->findInt64("time-offset-us", &timeOffsetUs)) {
-        status_t err = mOMX->setInternalOption(
-            mNode,
-            kPortIndexInput,
-            IOMX::INTERNAL_OPTION_TIME_OFFSET,
-            &timeOffsetUs,
-            sizeof(timeOffsetUs));
+        if (mGraphicBufferSource == NULL) {
+            ALOGE("[%s] Invalid to set input buffer time offset without surface",
+                    mComponentName.c_str());
+            return INVALID_OPERATION;
+        }
+
+        status_t err = statusFromBinderStatus(
+                mGraphicBufferSource->setTimeOffsetUs(timeOffsetUs));
 
         if (err != OK) {
             ALOGE("[%s] Unable to set input buffer time offset (err %d)",
@@ -7500,13 +7091,14 @@
 
     int64_t skipFramesBeforeUs;
     if (params->findInt64("skip-frames-before", &skipFramesBeforeUs)) {
-        status_t err =
-            mOMX->setInternalOption(
-                     mNode,
-                     kPortIndexInput,
-                     IOMX::INTERNAL_OPTION_START_TIME,
-                     &skipFramesBeforeUs,
-                     sizeof(skipFramesBeforeUs));
+        if (mGraphicBufferSource == NULL) {
+            ALOGE("[%s] Invalid to set start time without surface",
+                    mComponentName.c_str());
+            return INVALID_OPERATION;
+        }
+
+        status_t err = statusFromBinderStatus(
+                mGraphicBufferSource->setStartTimeUs(skipFramesBeforeUs));
 
         if (err != OK) {
             ALOGE("Failed to set parameter 'skip-frames-before' (err %d)", err);
@@ -7516,15 +7108,16 @@
 
     int32_t dropInputFrames;
     if (params->findInt32("drop-input-frames", &dropInputFrames)) {
-        bool suspend = dropInputFrames != 0;
+        if (mGraphicBufferSource == NULL) {
+            ALOGE("[%s] Invalid to set suspend without surface",
+                    mComponentName.c_str());
+            return INVALID_OPERATION;
+        }
 
-        status_t err =
-            mOMX->setInternalOption(
-                     mNode,
-                     kPortIndexInput,
-                     IOMX::INTERNAL_OPTION_SUSPEND,
-                     &suspend,
-                     sizeof(suspend));
+        int64_t suspendStartTimeUs = -1;
+        (void) params->findInt64("drop-start-time-us", &suspendStartTimeUs);
+        status_t err = statusFromBinderStatus(
+                mGraphicBufferSource->setSuspend(dropInputFrames != 0, suspendStartTimeUs));
 
         if (err != OK) {
             ALOGE("Failed to set parameter 'drop-input-frames' (err %d)", err);
@@ -7532,6 +7125,22 @@
         }
     }
 
+    int64_t stopTimeUs;
+    if (params->findInt64("stop-time-us", &stopTimeUs)) {
+        if (mGraphicBufferSource == NULL) {
+            ALOGE("[%s] Invalid to set stop time without surface",
+                    mComponentName.c_str());
+            return INVALID_OPERATION;
+        }
+        status_t err = statusFromBinderStatus(
+                mGraphicBufferSource->setStopTimeUs(stopTimeUs));
+
+        if (err != OK) {
+            ALOGE("Failed to set parameter 'stop-time-us' (err %d)", err);
+            return err;
+        }
+    }
+
     int32_t dummy;
     if (params->findInt32("request-sync", &dummy)) {
         status_t err = requestIDRFrame();
@@ -7571,14 +7180,11 @@
 }
 
 void ACodec::onSignalEndOfInputStream() {
-    sp<AMessage> notify = mNotify->dup();
-    notify->setInt32("what", CodecBase::kWhatSignaledInputEOS);
-
-    status_t err = mOMX->signalEndOfInputStream(mNode);
-    if (err != OK) {
-        notify->setInt32("err", err);
+    status_t err = INVALID_OPERATION;
+    if (mGraphicBufferSource != NULL) {
+        err = statusFromBinderStatus(mGraphicBufferSource->signalEndOfInputStream());
     }
-    notify->post();
+    mCallback->onSignaledInputEOS(err);
 }
 
 bool ACodec::ExecutingState::onOMXFrameRendered(int64_t mediaTimeUs, nsecs_t systemNano) {
@@ -7597,8 +7203,7 @@
 
             if (data2 == 0 || data2 == OMX_IndexParamPortDefinition) {
                 mCodec->mMetadataBuffersToSubmit = 0;
-                CHECK_EQ(mCodec->mOMX->sendCommand(
-                            mCodec->mNode,
+                CHECK_EQ(mCodec->mOMXNode->sendCommand(
                             OMX_CommandPortDisable, kPortIndexOutput),
                          (status_t)OK);
 
@@ -7699,18 +7304,23 @@
                             mCodec->mBuffers[kPortIndexOutput].size());
                     err = FAILED_TRANSACTION;
                 } else {
-                    mCodec->mDealer[kPortIndexOutput].clear();
+                    if (mCodec->getTrebleFlag()) {
+                        mCodec->mAllocator[kPortIndexOutput].clear();
+                    } else {
+                        mCodec->mDealer[kPortIndexOutput].clear();
+                    }
                 }
 
                 if (err == OK) {
-                    err = mCodec->mOMX->sendCommand(
-                            mCodec->mNode, OMX_CommandPortEnable, kPortIndexOutput);
+                    err = mCodec->mOMXNode->sendCommand(
+                            OMX_CommandPortEnable, kPortIndexOutput);
                 }
 
                 if (err == OK) {
                     err = mCodec->allocateBuffersOnPort(kPortIndexOutput);
                     ALOGE_IF(err != OK, "Failed to allocate output port buffers after port "
                             "reconfiguration: (%d)", err);
+                    mCodec->mCallback->onOutputBuffersChanged();
                 }
 
                 if (err != OK) {
@@ -7773,8 +7383,7 @@
 
         case kWhatShutdown:
         {
-            // We're already doing that...
-
+            mCodec->deferMessage(msg);
             handled = true;
             break;
         }
@@ -7829,8 +7438,8 @@
 
 void ACodec::ExecutingToIdleState::changeStateIfWeOwnAllBuffers() {
     if (mComponentNowIdle && mCodec->allYourBuffersAreBelongToUs()) {
-        status_t err = mCodec->mOMX->sendCommand(
-                mCodec->mNode, OMX_CommandStateSet, OMX_StateLoaded);
+        status_t err = mCodec->mOMXNode->sendCommand(
+                OMX_CommandStateSet, OMX_StateLoaded);
         if (err == OK) {
             err = mCodec->freeBuffersOnPort(kPortIndexInput);
             status_t err2 = mCodec->freeBuffersOnPort(kPortIndexOutput);
@@ -7883,8 +7492,7 @@
     switch (msg->what()) {
         case kWhatShutdown:
         {
-            // We're already doing that...
-
+            mCodec->deferMessage(msg);
             handled = true;
             break;
         }
@@ -8016,7 +7624,7 @@
         {
             sp<AMessage> msg = new AMessage(kWhatOMXMessage, mCodec);
             msg->setInt32("type", omx_message::EVENT);
-            msg->setInt32("node", mCodec->mNode);
+            msg->setInt32("generation", mCodec->mNodeGeneration);
             msg->setInt32("event", event);
             msg->setInt32("data1", data1);
             msg->setInt32("data2", data2);
@@ -8058,9 +7666,7 @@
 
         mCodec->mRenderTracker.clear(systemTime(CLOCK_MONOTONIC));
 
-        sp<AMessage> notify = mCodec->mNotify->dup();
-        notify->setInt32("what", CodecBase::kWhatFlushCompleted);
-        notify->post();
+        mCodec->mCallback->onFlushCompleted();
 
         mCodec->mPortEOS[kPortIndexInput] =
             mCodec->mPortEOS[kPortIndexOutput] = false;
@@ -8079,7 +7685,7 @@
         const AString &name, const AString &mime, bool isEncoder,
         sp<MediaCodecInfo::Capabilities> *caps) {
     (*caps).clear();
-    const char *role = getComponentRole(isEncoder, mime.c_str());
+    const char *role = GetComponentRole(isEncoder, mime.c_str());
     if (role == NULL) {
         return BAD_VALUE;
     }
@@ -8092,17 +7698,17 @@
 
     sp<IOMX> omx = client.interface();
     sp<CodecObserver> observer = new CodecObserver;
-    IOMX::node_id node = 0;
+    sp<IOMXNode> omxNode;
 
-    err = omx->allocateNode(name.c_str(), observer, NULL, &node);
+    err = omx->allocateNode(name.c_str(), observer, &omxNode);
     if (err != OK) {
         client.disconnect();
         return err;
     }
 
-    err = setComponentRole(omx, node, role);
+    err = SetComponentRole(omxNode, role);
     if (err != OK) {
-        omx->freeNode(node);
+        omxNode->freeNode();
         client.disconnect();
         return err;
     }
@@ -8117,8 +7723,8 @@
 
         for (OMX_U32 index = 0; index <= kMaxIndicesToCheck; ++index) {
             param.nProfileIndex = index;
-            status_t err = omx->getParameter(
-                    node, OMX_IndexParamVideoProfileLevelQuerySupported,
+            status_t err = omxNode->getParameter(
+                    OMX_IndexParamVideoProfileLevelQuerySupported,
                     &param, sizeof(param));
             if (err != OK) {
                 break;
@@ -8141,16 +7747,16 @@
         Vector<uint32_t> supportedColors; // shadow copy to check for duplicates
         for (OMX_U32 index = 0; index <= kMaxIndicesToCheck; ++index) {
             portFormat.nIndex = index;
-            status_t err = omx->getParameter(
-                    node, OMX_IndexParamVideoPortFormat,
+            status_t err = omxNode->getParameter(
+                    OMX_IndexParamVideoPortFormat,
                     &portFormat, sizeof(portFormat));
             if (err != OK) {
                 break;
             }
 
             OMX_U32 flexibleEquivalent;
-            if (isFlexibleColorFormat(
-                    omx, node, portFormat.eColorFormat, false /* usingNativeWindow */,
+            if (IsFlexibleColorFormat(
+                    omxNode, portFormat.eColorFormat, false /* usingNativeWindow */,
                     &flexibleEquivalent)) {
                 bool marked = false;
                 for (size_t i = 0; i < supportedColors.size(); ++i) {
@@ -8180,8 +7786,8 @@
         param.nPortIndex = isEncoder ? kPortIndexOutput : kPortIndexInput;
         for (OMX_U32 index = 0; index <= kMaxIndicesToCheck; ++index) {
             param.nProfileIndex = index;
-            status_t err = omx->getParameter(
-                    node, (OMX_INDEXTYPE)OMX_IndexParamAudioProfileQuerySupported,
+            status_t err = omxNode->getParameter(
+                    (OMX_INDEXTYPE)OMX_IndexParamAudioProfileQuerySupported,
                     &param, sizeof(param));
             if (err != OK) {
                 break;
@@ -8205,15 +7811,15 @@
 
     if (isVideo && !isEncoder) {
         native_handle_t *sidebandHandle = NULL;
-        if (omx->configureVideoTunnelMode(
-                node, kPortIndexOutput, OMX_TRUE, 0, &sidebandHandle) == OK) {
+        if (omxNode->configureVideoTunnelMode(
+                kPortIndexOutput, OMX_TRUE, 0, &sidebandHandle) == OK) {
             // tunneled playback includes adaptive playback
             builder->addFlags(MediaCodecInfo::Capabilities::kFlagSupportsAdaptivePlayback
                     | MediaCodecInfo::Capabilities::kFlagSupportsTunneledPlayback);
-        } else if (omx->storeMetaDataInBuffers(
-                node, kPortIndexOutput, OMX_TRUE) == OK ||
-            omx->prepareForAdaptivePlayback(
-                node, kPortIndexOutput, OMX_TRUE,
+        } else if (omxNode->setPortMode(
+                kPortIndexOutput, IOMX::kPortModeDynamicANWBuffer) == OK ||
+                omxNode->prepareForAdaptivePlayback(
+                kPortIndexOutput, OMX_TRUE,
                 1280 /* width */, 720 /* height */) == OK) {
             builder->addFlags(MediaCodecInfo::Capabilities::kFlagSupportsAdaptivePlayback);
         }
@@ -8224,15 +7830,15 @@
         InitOMXParams(&params);
         params.nPortIndex = kPortIndexOutput;
         // TODO: should we verify if fallback is supported?
-        if (omx->getConfig(
-                node, (OMX_INDEXTYPE)OMX_IndexConfigAndroidIntraRefresh,
+        if (omxNode->getConfig(
+                (OMX_INDEXTYPE)OMX_IndexConfigAndroidIntraRefresh,
                 &params, sizeof(params)) == OK) {
             builder->addFlags(MediaCodecInfo::Capabilities::kFlagSupportsIntraRefresh);
         }
     }
 
     *caps = builder;
-    omx->freeNode(node);
+    omxNode->freeNode();
     client.disconnect();
     return OK;
 }
@@ -8301,4 +7907,12 @@
     return OK;
 }
 
+void ACodec::setTrebleFlag(bool trebleFlag) {
+    mTrebleFlag = trebleFlag;
+}
+
+bool ACodec::getTrebleFlag() const {
+    return mTrebleFlag;
+}
+
 }  // namespace android
diff --git a/media/libstagefright/ACodecBufferChannel.cpp b/media/libstagefright/ACodecBufferChannel.cpp
new file mode 100644
index 0000000..259e134
--- /dev/null
+++ b/media/libstagefright/ACodecBufferChannel.cpp
@@ -0,0 +1,346 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "ACodecBufferChannel"
+#include <utils/Log.h>
+
+#include <numeric>
+
+#include <android/media/IDescrambler.h>
+#include <binder/MemoryDealer.h>
+#include <media/openmax/OMX_Core.h>
+#include <media/stagefright/foundation/AMessage.h>
+#include <media/stagefright/foundation/AUtils.h>
+#include <media/stagefright/MediaCodec.h>
+#include <media/MediaCodecBuffer.h>
+#include <system/window.h>
+
+#include "include/ACodecBufferChannel.h"
+#include "include/SecureBuffer.h"
+#include "include/SharedMemoryBuffer.h"
+
+namespace android {
+using binder::Status;
+using MediaDescrambler::DescrambleInfo;
+using BufferInfo = ACodecBufferChannel::BufferInfo;
+using BufferInfoIterator = std::vector<const BufferInfo>::const_iterator;
+
+static BufferInfoIterator findClientBuffer(
+        const std::shared_ptr<const std::vector<const BufferInfo>> &array,
+        const sp<MediaCodecBuffer> &buffer) {
+    return std::find_if(
+            array->begin(), array->end(),
+            [buffer](const BufferInfo &info) { return info.mClientBuffer == buffer; });
+}
+
+static BufferInfoIterator findBufferId(
+        const std::shared_ptr<const std::vector<const BufferInfo>> &array,
+        IOMX::buffer_id bufferId) {
+    return std::find_if(
+            array->begin(), array->end(),
+            [bufferId](const BufferInfo &info) { return bufferId == info.mBufferId; });
+}
+
+ACodecBufferChannel::BufferInfo::BufferInfo(
+        const sp<MediaCodecBuffer> &buffer,
+        IOMX::buffer_id bufferId,
+        const sp<IMemory> &sharedEncryptedBuffer)
+    : mClientBuffer(
+          (sharedEncryptedBuffer == nullptr)
+          ? buffer
+          : new SharedMemoryBuffer(buffer->format(), sharedEncryptedBuffer)),
+      mCodecBuffer(buffer),
+      mBufferId(bufferId),
+      mSharedEncryptedBuffer(sharedEncryptedBuffer) {
+}
+
+ACodecBufferChannel::ACodecBufferChannel(
+        const sp<AMessage> &inputBufferFilled, const sp<AMessage> &outputBufferDrained)
+    : mInputBufferFilled(inputBufferFilled),
+      mOutputBufferDrained(outputBufferDrained) {
+}
+
+status_t ACodecBufferChannel::queueInputBuffer(const sp<MediaCodecBuffer> &buffer) {
+    std::shared_ptr<const std::vector<const BufferInfo>> array(
+            std::atomic_load(&mInputBuffers));
+    BufferInfoIterator it = findClientBuffer(array, buffer);
+    if (it == array->end()) {
+        return -ENOENT;
+    }
+    ALOGV("queueInputBuffer #%d", it->mBufferId);
+    sp<AMessage> msg = mInputBufferFilled->dup();
+    msg->setObject("buffer", it->mCodecBuffer);
+    msg->setInt32("buffer-id", it->mBufferId);
+    msg->post();
+    return OK;
+}
+
+status_t ACodecBufferChannel::queueSecureInputBuffer(
+        const sp<MediaCodecBuffer> &buffer, bool secure, const uint8_t *key,
+        const uint8_t *iv, CryptoPlugin::Mode mode, CryptoPlugin::Pattern pattern,
+        const CryptoPlugin::SubSample *subSamples, size_t numSubSamples,
+        AString *errorDetailMsg) {
+    if (!hasCryptoOrDescrambler()) {
+        return -ENOSYS;
+    }
+    std::shared_ptr<const std::vector<const BufferInfo>> array(
+            std::atomic_load(&mInputBuffers));
+    BufferInfoIterator it = findClientBuffer(array, buffer);
+    if (it == array->end()) {
+        return -ENOENT;
+    }
+
+    ICrypto::DestinationBuffer destination;
+    if (secure) {
+        sp<SecureBuffer> secureData =
+                static_cast<SecureBuffer *>(it->mCodecBuffer.get());
+        destination.mType = secureData->getDestinationType();
+        if (destination.mType != ICrypto::kDestinationTypeNativeHandle) {
+            return BAD_VALUE;
+        }
+        destination.mHandle =
+                static_cast<native_handle_t *>(secureData->getDestinationPointer());
+    } else {
+        destination.mType = ICrypto::kDestinationTypeSharedMemory;
+        destination.mSharedMemory = mDecryptDestination;
+    }
+
+    ssize_t result = -1;
+    if (mCrypto != NULL) {
+        result = mCrypto->decrypt(key, iv, mode, pattern,
+                    it->mSharedEncryptedBuffer, it->mClientBuffer->offset(),
+                    subSamples, numSubSamples, destination, errorDetailMsg);
+    } else {
+        DescrambleInfo descrambleInfo;
+        descrambleInfo.dstType = destination.mType ==
+                ICrypto::kDestinationTypeSharedMemory ?
+                DescrambleInfo::kDestinationTypeVmPointer :
+                DescrambleInfo::kDestinationTypeNativeHandle;
+        descrambleInfo.scramblingControl = key != NULL ?
+                (DescramblerPlugin::ScramblingControl)key[0] :
+                DescramblerPlugin::kScrambling_Unscrambled;
+        descrambleInfo.numSubSamples = numSubSamples;
+        descrambleInfo.subSamples = (DescramblerPlugin::SubSample *)subSamples;
+        descrambleInfo.srcMem = it->mSharedEncryptedBuffer;
+        descrambleInfo.srcOffset = 0;
+        descrambleInfo.dstPtr = NULL;
+        descrambleInfo.dstOffset = 0;
+
+        int32_t descrambleResult = -1;
+        Status status = mDescrambler->descramble(descrambleInfo, &descrambleResult);
+
+        if (status.isOk()) {
+            result = descrambleResult;
+        }
+
+        if (result < 0) {
+            ALOGE("descramble failed, exceptionCode=%d, err=%d, result=%zd",
+                    status.exceptionCode(), status.transactionError(), result);
+        } else {
+            ALOGV("descramble succeeded, result=%zd", result);
+        }
+
+        if (result > 0 && destination.mType == ICrypto::kDestinationTypeSharedMemory) {
+            memcpy(destination.mSharedMemory->pointer(),
+                    (uint8_t*)it->mSharedEncryptedBuffer->pointer(), result);
+        }
+    }
+
+    if (result < 0) {
+        return result;
+    }
+
+    if (destination.mType == ICrypto::kDestinationTypeSharedMemory) {
+        memcpy(it->mCodecBuffer->base(), destination.mSharedMemory->pointer(), result);
+    }
+
+    it->mCodecBuffer->setRange(0, result);
+
+    // Copy metadata from client to codec buffer.
+    it->mCodecBuffer->meta()->clear();
+    int64_t timeUs;
+    CHECK(it->mClientBuffer->meta()->findInt64("timeUs", &timeUs));
+    it->mCodecBuffer->meta()->setInt64("timeUs", timeUs);
+    int32_t eos;
+    if (it->mClientBuffer->meta()->findInt32("eos", &eos)) {
+        it->mCodecBuffer->meta()->setInt32("eos", eos);
+    }
+    int32_t csd;
+    if (it->mClientBuffer->meta()->findInt32("csd", &csd)) {
+        it->mCodecBuffer->meta()->setInt32("csd", csd);
+    }
+
+    ALOGV("queueSecureInputBuffer #%d", it->mBufferId);
+    sp<AMessage> msg = mInputBufferFilled->dup();
+    msg->setObject("buffer", it->mCodecBuffer);
+    msg->setInt32("buffer-id", it->mBufferId);
+    msg->post();
+    return OK;
+}
+
+status_t ACodecBufferChannel::renderOutputBuffer(
+        const sp<MediaCodecBuffer> &buffer, int64_t timestampNs) {
+    std::shared_ptr<const std::vector<const BufferInfo>> array(
+            std::atomic_load(&mOutputBuffers));
+    BufferInfoIterator it = findClientBuffer(array, buffer);
+    if (it == array->end()) {
+        return -ENOENT;
+    }
+
+    ALOGV("renderOutputBuffer #%d", it->mBufferId);
+    sp<AMessage> msg = mOutputBufferDrained->dup();
+    msg->setObject("buffer", buffer);
+    msg->setInt32("buffer-id", it->mBufferId);
+    msg->setInt32("render", true);
+    msg->setInt64("timestampNs", timestampNs);
+    msg->post();
+    return OK;
+}
+
+status_t ACodecBufferChannel::discardBuffer(const sp<MediaCodecBuffer> &buffer) {
+    std::shared_ptr<const std::vector<const BufferInfo>> array(
+            std::atomic_load(&mInputBuffers));
+    bool input = true;
+    BufferInfoIterator it = findClientBuffer(array, buffer);
+    if (it == array->end()) {
+        array = std::atomic_load(&mOutputBuffers);
+        input = false;
+        it = findClientBuffer(array, buffer);
+        if (it == array->end()) {
+            return -ENOENT;
+        }
+    }
+    ALOGV("discardBuffer #%d", it->mBufferId);
+    sp<AMessage> msg = input ? mInputBufferFilled->dup() : mOutputBufferDrained->dup();
+    msg->setObject("buffer", it->mCodecBuffer);
+    msg->setInt32("buffer-id", it->mBufferId);
+    msg->setInt32("discarded", true);
+    msg->post();
+    return OK;
+}
+
+void ACodecBufferChannel::getInputBufferArray(Vector<sp<MediaCodecBuffer>> *array) {
+    std::shared_ptr<const std::vector<const BufferInfo>> inputBuffers(
+            std::atomic_load(&mInputBuffers));
+    array->clear();
+    for (const BufferInfo &elem : *inputBuffers) {
+        array->push_back(elem.mClientBuffer);
+    }
+}
+
+void ACodecBufferChannel::getOutputBufferArray(Vector<sp<MediaCodecBuffer>> *array) {
+    std::shared_ptr<const std::vector<const BufferInfo>> outputBuffers(
+            std::atomic_load(&mOutputBuffers));
+    array->clear();
+    for (const BufferInfo &elem : *outputBuffers) {
+        array->push_back(elem.mClientBuffer);
+    }
+}
+
+void ACodecBufferChannel::setInputBufferArray(const std::vector<BufferAndId> &array) {
+    if (hasCryptoOrDescrambler()) {
+        size_t totalSize = std::accumulate(
+                array.begin(), array.end(), 0u,
+                [alignment = MemoryDealer::getAllocationAlignment()]
+                (size_t sum, const BufferAndId& elem) {
+                    return sum + align(elem.mBuffer->capacity(), alignment);
+                });
+        size_t maxSize = std::accumulate(
+                array.begin(), array.end(), 0u,
+                [alignment = MemoryDealer::getAllocationAlignment()]
+                (size_t max, const BufferAndId& elem) {
+                    return std::max(max, align(elem.mBuffer->capacity(), alignment));
+                });
+        mDealer = new MemoryDealer(totalSize + maxSize, "ACodecBufferChannel");
+        mDecryptDestination = mDealer->allocate(maxSize);
+    }
+    std::vector<const BufferInfo> inputBuffers;
+    for (const BufferAndId &elem : array) {
+        sp<IMemory> sharedEncryptedBuffer;
+        if (hasCryptoOrDescrambler()) {
+            sharedEncryptedBuffer = mDealer->allocate(elem.mBuffer->capacity());
+        }
+        inputBuffers.emplace_back(elem.mBuffer, elem.mBufferId, sharedEncryptedBuffer);
+    }
+    std::atomic_store(
+            &mInputBuffers,
+            std::make_shared<const std::vector<const BufferInfo>>(inputBuffers));
+}
+
+void ACodecBufferChannel::setOutputBufferArray(const std::vector<BufferAndId> &array) {
+    std::vector<const BufferInfo> outputBuffers;
+    for (const BufferAndId &elem : array) {
+        outputBuffers.emplace_back(elem.mBuffer, elem.mBufferId, nullptr);
+    }
+    std::atomic_store(
+            &mOutputBuffers,
+            std::make_shared<const std::vector<const BufferInfo>>(outputBuffers));
+}
+
+void ACodecBufferChannel::fillThisBuffer(IOMX::buffer_id bufferId) {
+    ALOGV("fillThisBuffer #%d", bufferId);
+    std::shared_ptr<const std::vector<const BufferInfo>> array(
+            std::atomic_load(&mInputBuffers));
+    BufferInfoIterator it = findBufferId(array, bufferId);
+
+    if (it == array->end()) {
+        ALOGE("fillThisBuffer: unrecognized buffer #%d", bufferId);
+        return;
+    }
+    if (it->mClientBuffer != it->mCodecBuffer) {
+        it->mClientBuffer->setFormat(it->mCodecBuffer->format());
+    }
+
+    mCallback->onInputBufferAvailable(
+            std::distance(array->begin(), it),
+            it->mClientBuffer);
+}
+
+void ACodecBufferChannel::drainThisBuffer(
+        IOMX::buffer_id bufferId,
+        OMX_U32 omxFlags) {
+    ALOGV("drainThisBuffer #%d", bufferId);
+    std::shared_ptr<const std::vector<const BufferInfo>> array(
+            std::atomic_load(&mOutputBuffers));
+    BufferInfoIterator it = findBufferId(array, bufferId);
+
+    if (it == array->end()) {
+        ALOGE("drainThisBuffer: unrecognized buffer #%d", bufferId);
+        return;
+    }
+    if (it->mClientBuffer != it->mCodecBuffer) {
+        it->mClientBuffer->setFormat(it->mCodecBuffer->format());
+    }
+
+    uint32_t flags = 0;
+    if (omxFlags & OMX_BUFFERFLAG_SYNCFRAME) {
+        flags |= MediaCodec::BUFFER_FLAG_SYNCFRAME;
+    }
+    if (omxFlags & OMX_BUFFERFLAG_CODECCONFIG) {
+        flags |= MediaCodec::BUFFER_FLAG_CODECCONFIG;
+    }
+    if (omxFlags & OMX_BUFFERFLAG_EOS) {
+        flags |= MediaCodec::BUFFER_FLAG_EOS;
+    }
+    it->mClientBuffer->meta()->setInt32("flags", flags);
+
+    mCallback->onOutputBufferAvailable(
+            std::distance(array->begin(), it),
+            it->mClientBuffer);
+}
+
+}  // namespace android
diff --git a/media/libstagefright/Android.mk b/media/libstagefright/Android.mk
index 604ad7c..18cfc0e 100644
--- a/media/libstagefright/Android.mk
+++ b/media/libstagefright/Android.mk
@@ -4,20 +4,20 @@
 
 LOCAL_SRC_FILES:=                         \
         ACodec.cpp                        \
+        ACodecBufferChannel.cpp           \
         AACExtractor.cpp                  \
         AACWriter.cpp                     \
         AMRExtractor.cpp                  \
         AMRWriter.cpp                     \
         AudioPlayer.cpp                   \
         AudioSource.cpp                   \
+        BufferImpl.cpp                    \
         CallbackDataSource.cpp            \
         CameraSource.cpp                  \
         CameraSourceTimeLapse.cpp         \
-        CodecBase.cpp                     \
         DataConverter.cpp                 \
         DataSource.cpp                    \
         DataURISource.cpp                 \
-        DRMExtractor.cpp                  \
         ESDS.cpp                          \
         FileSource.cpp                    \
         FLACExtractor.cpp                 \
@@ -35,7 +35,6 @@
         MediaCodecList.cpp                \
         MediaCodecListOverrides.cpp       \
         MediaCodecSource.cpp              \
-        MediaDefs.cpp                     \
         MediaExtractor.cpp                \
         MediaSync.cpp                     \
         MidiExtractor.cpp                 \
@@ -46,7 +45,6 @@
         NuMediaExtractor.cpp              \
         OMXClient.cpp                     \
         OggExtractor.cpp                  \
-        ProcessInfo.cpp                   \
         SampleIterator.cpp                \
         SampleTable.cpp                   \
         SimpleDecodingSource.cpp          \
@@ -60,7 +58,6 @@
         VBRISeeker.cpp                    \
         VideoFrameScheduler.cpp           \
         WAVExtractor.cpp                  \
-        WVMExtractor.cpp                  \
         XINGSeeker.cpp                    \
         avc_utils.cpp                     \
 
@@ -96,6 +93,8 @@
         libui \
         libutils \
         libvorbisidec \
+        libmediadrm \
+        libnativewindow \
 
 LOCAL_STATIC_LIBRARIES := \
         libstagefright_color_conversion \
@@ -110,12 +109,17 @@
         libstagefright_mpeg2ts \
         libstagefright_id3 \
         libFLAC \
-        libmedia_helper \
 
 LOCAL_SHARED_LIBRARIES += \
+        libmedia_helper \
         libstagefright_foundation \
         libdl \
         libRScpp \
+        libhidlbase \
+        libhidlmemory \
+        android.hidl.allocator@1.0 \
+        android.hidl.memory@1.0 \
+        android.hardware.media.omx@1.0 \
 
 LOCAL_EXPORT_SHARED_LIBRARY_HEADERS := libmedia
 
@@ -126,8 +130,8 @@
 LOCAL_CFLAGS += -DENABLE_STAGEFRIGHT_EXPERIMENTS
 endif
 
-LOCAL_CLANG := true
-LOCAL_SANITIZE := unsigned-integer-overflow signed-integer-overflow
+LOCAL_SANITIZE := unsigned-integer-overflow signed-integer-overflow cfi
+LOCAL_SANITIZE_DIAG := cfi
 
 LOCAL_MODULE:= libstagefright
 
diff --git a/media/libstagefright/AudioSource.cpp b/media/libstagefright/AudioSource.cpp
index efdee77..4ccd2d0 100644
--- a/media/libstagefright/AudioSource.cpp
+++ b/media/libstagefright/AudioSource.cpp
@@ -62,6 +62,8 @@
       mPrevSampleTimeUs(0),
       mInitialReadTimeUs(0),
       mNumFramesReceived(0),
+      mNumFramesSkipped(0),
+      mNumFramesLost(0),
       mNumClientOwnedBuffers(0) {
     ALOGV("sampleRate: %u, outSampleRate: %u, channelCount: %u",
             sampleRate, outSampleRate, channelCount);
@@ -295,11 +297,27 @@
 }
 
 status_t AudioSource::dataCallback(const AudioRecord::Buffer& audioBuffer) {
-    int64_t timeUs = systemTime() / 1000ll;
-    // Estimate the real sampling time of the 1st sample in this buffer
-    // from AudioRecord's latency. (Apply this adjustment first so that
-    // the start time logic is not affected.)
-    timeUs -= mRecord->latency() * 1000LL;
+    int64_t timeUs, position, timeNs;
+    ExtendedTimestamp ts;
+    ExtendedTimestamp::Location location;
+    const int32_t usPerSec = 1000000;
+
+    if (mRecord->getTimestamp(&ts) == OK &&
+            ts.getBestTimestamp(&position, &timeNs, ExtendedTimestamp::TIMEBASE_MONOTONIC,
+            &location) == OK) {
+        // Use audio timestamp.
+        timeUs = timeNs / 1000 -
+                (position - mNumFramesSkipped -
+                mNumFramesReceived + mNumFramesLost) * usPerSec / mSampleRate;
+    } else {
+        // This should not happen in normal case.
+        ALOGW("Failed to get audio timestamp, fallback to use systemclock");
+        timeUs = systemTime() / 1000ll;
+        // Estimate the real sampling time of the 1st sample in this buffer
+        // from AudioRecord's latency. (Apply this adjustment first so that
+        // the start time logic is not affected.)
+        timeUs -= mRecord->latency() * 1000LL;
+    }
 
     ALOGV("dataCallbackTimestamp: %" PRId64 " us", timeUs);
     Mutex::Autolock autoLock(mLock);
@@ -308,10 +326,15 @@
         return OK;
     }
 
+    const size_t bufferSize = audioBuffer.size;
+
     // Drop retrieved and previously lost audio data.
     if (mNumFramesReceived == 0 && timeUs < mStartTimeUs) {
         (void) mRecord->getInputFramesLost();
-        ALOGV("Drop audio data at %" PRId64 "/%" PRId64 " us", timeUs, mStartTimeUs);
+        int64_t receievedFrames = bufferSize / mRecord->frameSize();
+        ALOGV("Drop audio data(%" PRId64 " frames) at %" PRId64 "/%" PRId64 " us",
+                receievedFrames, timeUs, mStartTimeUs);
+        mNumFramesSkipped += receievedFrames;
         return OK;
     }
 
@@ -320,11 +343,7 @@
         // Initial delay
         if (mStartTimeUs > 0) {
             mStartTimeUs = timeUs - mStartTimeUs;
-        } else {
-            // Assume latency is constant.
-            mStartTimeUs += mRecord->latency() * 1000;
         }
-
         mPrevSampleTimeUs = mStartTimeUs;
     }
 
@@ -354,6 +373,7 @@
         MediaBuffer *lostAudioBuffer = new MediaBuffer(bufferSize);
         memset(lostAudioBuffer->data(), 0, bufferSize);
         lostAudioBuffer->set_range(0, bufferSize);
+        mNumFramesLost += bufferSize / mRecord->frameSize();
         queueInputBuffer_l(lostAudioBuffer, timeUs);
     }
 
@@ -362,7 +382,6 @@
         return OK;
     }
 
-    const size_t bufferSize = audioBuffer.size;
     MediaBuffer *buffer = new MediaBuffer(bufferSize);
     memcpy((uint8_t *) buffer->data(),
             audioBuffer.i16, audioBuffer.size);
diff --git a/media/libstagefright/BufferImpl.cpp b/media/libstagefright/BufferImpl.cpp
new file mode 100644
index 0000000..fee3739
--- /dev/null
+++ b/media/libstagefright/BufferImpl.cpp
@@ -0,0 +1,62 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "BufferImpl"
+#include <utils/Log.h>
+
+#include <binder/IMemory.h>
+#include <media/stagefright/foundation/ABuffer.h>
+#include <media/stagefright/foundation/AMessage.h>
+#include <media/ICrypto.h>
+#include <utils/NativeHandle.h>
+
+#include "include/SecureBuffer.h"
+#include "include/SharedMemoryBuffer.h"
+
+namespace android {
+
+SharedMemoryBuffer::SharedMemoryBuffer(const sp<AMessage> &format, const sp<IMemory> &mem)
+    : MediaCodecBuffer(format, new ABuffer(mem->pointer(), mem->size())),
+      mMemory(mem) {
+}
+
+SharedMemoryBuffer::SharedMemoryBuffer(const sp<AMessage> &format, const sp<TMemory> &mem)
+    : MediaCodecBuffer(format, new ABuffer(mem->getPointer(), mem->getSize())),
+      mTMemory(mem) {
+}
+
+SecureBuffer::SecureBuffer(const sp<AMessage> &format, const void *ptr, size_t size)
+    : MediaCodecBuffer(format, new ABuffer(nullptr, size)),
+      mPointer(ptr) {
+}
+
+SecureBuffer::SecureBuffer(
+        const sp<AMessage> &format, const sp<NativeHandle> &handle, size_t size)
+    : MediaCodecBuffer(format, new ABuffer(nullptr, size)),
+      mPointer(nullptr),
+      mHandle(handle) {
+}
+
+void *SecureBuffer::getDestinationPointer() {
+    return (void *)(mHandle == nullptr ? mPointer : mHandle->handle());
+}
+
+ICrypto::DestinationType SecureBuffer::getDestinationType() {
+    return ICrypto::kDestinationTypeNativeHandle;
+}
+
+}  // namespace android
diff --git a/media/libstagefright/CameraSource.cpp b/media/libstagefright/CameraSource.cpp
index 408ad7a..0fe44eb 100644
--- a/media/libstagefright/CameraSource.cpp
+++ b/media/libstagefright/CameraSource.cpp
@@ -111,6 +111,11 @@
 }
 
 static int32_t getColorFormat(const char* colorFormat) {
+    if (!colorFormat) {
+        ALOGE("Invalid color format");
+        return -1;
+    }
+
     if (!strcmp(colorFormat, CameraParameters::PIXEL_FORMAT_YUV420P)) {
        return OMX_COLOR_FormatYUV420Planar;
     }
@@ -765,9 +770,7 @@
         return mInitCheck;
     }
 
-    char value[PROPERTY_VALUE_MAX];
-    if (property_get("media.stagefright.record-stats", value, NULL)
-        && (!strcmp(value, "1") || !strcasecmp(value, "true"))) {
+    if (property_get_bool("media.stagefright.record-stats", false)) {
         mCollectStats = true;
     }
 
diff --git a/media/libstagefright/CodecBase.cpp b/media/libstagefright/CodecBase.cpp
deleted file mode 100644
index f729d4d..0000000
--- a/media/libstagefright/CodecBase.cpp
+++ /dev/null
@@ -1,38 +0,0 @@
-/*
- * Copyright (C) 2014 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-//#define LOG_NDEBUG 0
-#define LOG_TAG "CodecBase"
-
-#include <inttypes.h>
-
-#include <media/stagefright/CodecBase.h>
-
-namespace android {
-
-CodecBase::CodecBase() {
-}
-
-CodecBase::~CodecBase() {
-}
-
-CodecBase::PortDescription::PortDescription() {
-}
-
-CodecBase::PortDescription::~PortDescription() {
-}
-
-}  // namespace android
diff --git a/media/libstagefright/DRMExtractor.cpp b/media/libstagefright/DRMExtractor.cpp
deleted file mode 100644
index d36ac65..0000000
--- a/media/libstagefright/DRMExtractor.cpp
+++ /dev/null
@@ -1,306 +0,0 @@
-/*
- * Copyright (C) 2010 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include "include/DRMExtractor.h"
-
-#include <arpa/inet.h>
-#include <utils/String8.h>
-#include <media/stagefright/foundation/ADebug.h>
-#include <media/stagefright/Utils.h>
-#include <media/stagefright/DataSource.h>
-#include <media/stagefright/MediaSource.h>
-#include <media/stagefright/MediaDefs.h>
-#include <media/stagefright/MetaData.h>
-#include <media/stagefright/MediaErrors.h>
-#include <media/stagefright/MediaBuffer.h>
-
-#include <drm/drm_framework_common.h>
-#include <utils/Errors.h>
-
-
-namespace android {
-
-class DRMSource : public MediaSource {
-public:
-    DRMSource(const sp<IMediaSource> &mediaSource,
-            const sp<DecryptHandle> &decryptHandle,
-            DrmManagerClient *managerClient,
-            int32_t trackId, DrmBuffer *ipmpBox);
-
-    virtual status_t start(MetaData *params = NULL);
-    virtual status_t stop();
-    virtual sp<MetaData> getFormat();
-    virtual status_t read(
-            MediaBuffer **buffer, const ReadOptions *options = NULL);
-
-protected:
-    virtual ~DRMSource();
-
-private:
-    sp<IMediaSource> mOriginalMediaSource;
-    sp<DecryptHandle> mDecryptHandle;
-    DrmManagerClient* mDrmManagerClient;
-    size_t mTrackId;
-    mutable Mutex mDRMLock;
-    size_t mNALLengthSize;
-    bool mWantsNALFragments;
-
-    DRMSource(const DRMSource &);
-    DRMSource &operator=(const DRMSource &);
-};
-
-////////////////////////////////////////////////////////////////////////////////
-
-DRMSource::DRMSource(const sp<IMediaSource> &mediaSource,
-        const sp<DecryptHandle> &decryptHandle,
-        DrmManagerClient *managerClient,
-        int32_t trackId, DrmBuffer *ipmpBox)
-    : mOriginalMediaSource(mediaSource),
-      mDecryptHandle(decryptHandle),
-      mDrmManagerClient(managerClient),
-      mTrackId(trackId),
-      mNALLengthSize(0),
-      mWantsNALFragments(false) {
-    CHECK(mDrmManagerClient);
-    mDrmManagerClient->initializeDecryptUnit(
-            mDecryptHandle, trackId, ipmpBox);
-
-    const char *mime;
-    bool success = getFormat()->findCString(kKeyMIMEType, &mime);
-    CHECK(success);
-
-    if (!strcasecmp(mime, MEDIA_MIMETYPE_VIDEO_AVC)) {
-        uint32_t type;
-        const void *data;
-        size_t size;
-        CHECK(getFormat()->findData(kKeyAVCC, &type, &data, &size));
-
-        const uint8_t *ptr = (const uint8_t *)data;
-
-        CHECK(size >= 7);
-        CHECK_EQ(ptr[0], 1);  // configurationVersion == 1
-
-        // The number of bytes used to encode the length of a NAL unit.
-        mNALLengthSize = 1 + (ptr[4] & 3);
-    }
-}
-
-DRMSource::~DRMSource() {
-    Mutex::Autolock autoLock(mDRMLock);
-    mDrmManagerClient->finalizeDecryptUnit(mDecryptHandle, mTrackId);
-}
-
-status_t DRMSource::start(MetaData *params) {
-    int32_t val;
-    if (params && params->findInt32(kKeyWantsNALFragments, &val)
-        && val != 0) {
-        mWantsNALFragments = true;
-    } else {
-        mWantsNALFragments = false;
-    }
-
-   return mOriginalMediaSource->start(params);
-}
-
-status_t DRMSource::stop() {
-    return mOriginalMediaSource->stop();
-}
-
-sp<MetaData> DRMSource::getFormat() {
-    return mOriginalMediaSource->getFormat();
-}
-
-status_t DRMSource::read(MediaBuffer **buffer, const ReadOptions *options) {
-    Mutex::Autolock autoLock(mDRMLock);
-    status_t err;
-    if ((err = mOriginalMediaSource->read(buffer, options)) != OK) {
-        return err;
-    }
-
-    size_t len = (*buffer)->range_length();
-
-    char *src = (char *)(*buffer)->data() + (*buffer)->range_offset();
-
-    DrmBuffer encryptedDrmBuffer(src, len);
-    DrmBuffer decryptedDrmBuffer;
-    decryptedDrmBuffer.length = len;
-    decryptedDrmBuffer.data = new char[len];
-    DrmBuffer *pDecryptedDrmBuffer = &decryptedDrmBuffer;
-
-    if ((err = mDrmManagerClient->decrypt(mDecryptHandle, mTrackId,
-            &encryptedDrmBuffer, &pDecryptedDrmBuffer)) != NO_ERROR) {
-
-        if (decryptedDrmBuffer.data) {
-            delete [] decryptedDrmBuffer.data;
-            decryptedDrmBuffer.data = NULL;
-        }
-
-        return err;
-    }
-    CHECK(pDecryptedDrmBuffer == &decryptedDrmBuffer);
-
-    const char *mime;
-    CHECK(getFormat()->findCString(kKeyMIMEType, &mime));
-
-    if (!strcasecmp(mime, MEDIA_MIMETYPE_VIDEO_AVC) && !mWantsNALFragments) {
-        uint8_t *dstData = (uint8_t*)src;
-        size_t srcOffset = 0;
-        size_t dstOffset = 0;
-
-        len = decryptedDrmBuffer.length;
-        while (srcOffset < len) {
-            CHECK(srcOffset + mNALLengthSize <= len);
-            size_t nalLength = 0;
-            const uint8_t* data = (const uint8_t*)(&decryptedDrmBuffer.data[srcOffset]);
-
-            switch (mNALLengthSize) {
-                case 1:
-                    nalLength = *data;
-                    break;
-                case 2:
-                    nalLength = U16_AT(data);
-                    break;
-                case 3:
-                    nalLength = ((size_t)data[0] << 16) | U16_AT(&data[1]);
-                    break;
-                case 4:
-                    nalLength = U32_AT(data);
-                    break;
-                default:
-                    CHECK(!"Should not be here.");
-                    break;
-            }
-
-            srcOffset += mNALLengthSize;
-
-            size_t end = srcOffset + nalLength;
-            if (end > len || end < srcOffset) {
-                if (decryptedDrmBuffer.data) {
-                    delete [] decryptedDrmBuffer.data;
-                    decryptedDrmBuffer.data = NULL;
-                }
-
-                return ERROR_MALFORMED;
-            }
-
-            if (nalLength == 0) {
-                continue;
-            }
-
-            if (dstOffset > SIZE_MAX - 4 ||
-                dstOffset + 4 > SIZE_MAX - nalLength ||
-                dstOffset + 4 + nalLength > (*buffer)->size()) {
-                (*buffer)->release();
-                (*buffer) = NULL;
-                if (decryptedDrmBuffer.data) {
-                    delete [] decryptedDrmBuffer.data;
-                    decryptedDrmBuffer.data = NULL;
-                }
-                return ERROR_MALFORMED;
-            }
-
-            dstData[dstOffset++] = 0;
-            dstData[dstOffset++] = 0;
-            dstData[dstOffset++] = 0;
-            dstData[dstOffset++] = 1;
-            memcpy(&dstData[dstOffset], &decryptedDrmBuffer.data[srcOffset], nalLength);
-            srcOffset += nalLength;
-            dstOffset += nalLength;
-        }
-
-        CHECK_EQ(srcOffset, len);
-        (*buffer)->set_range((*buffer)->range_offset(), dstOffset);
-
-    } else {
-        memcpy(src, decryptedDrmBuffer.data, decryptedDrmBuffer.length);
-        (*buffer)->set_range((*buffer)->range_offset(), decryptedDrmBuffer.length);
-    }
-
-    if (decryptedDrmBuffer.data) {
-        delete [] decryptedDrmBuffer.data;
-        decryptedDrmBuffer.data = NULL;
-    }
-
-    return OK;
-}
-
-////////////////////////////////////////////////////////////////////////////////
-
-DRMExtractor::DRMExtractor(const sp<DataSource> &source, const char* mime)
-    : mDataSource(source),
-      mDecryptHandle(NULL),
-      mDrmManagerClient(NULL) {
-    mOriginalExtractor = MediaExtractor::Create(source, mime);
-    mOriginalExtractor->setDrmFlag(true);
-    mOriginalExtractor->getMetaData()->setInt32(kKeyIsDRM, 1);
-
-    source->getDrmInfo(mDecryptHandle, &mDrmManagerClient);
-}
-
-DRMExtractor::~DRMExtractor() {
-}
-
-size_t DRMExtractor::countTracks() {
-    return mOriginalExtractor->countTracks();
-}
-
-sp<IMediaSource> DRMExtractor::getTrack(size_t index) {
-    sp<IMediaSource> originalMediaSource = mOriginalExtractor->getTrack(index);
-    originalMediaSource->getFormat()->setInt32(kKeyIsDRM, 1);
-
-    int32_t trackID;
-    CHECK(getTrackMetaData(index, 0)->findInt32(kKeyTrackID, &trackID));
-
-    DrmBuffer ipmpBox;
-    ipmpBox.data = mOriginalExtractor->getDrmTrackInfo(trackID, &(ipmpBox.length));
-    CHECK(ipmpBox.length > 0);
-
-    return interface_cast<IMediaSource>(
-            new DRMSource(originalMediaSource, mDecryptHandle, mDrmManagerClient,
-            trackID, &ipmpBox));
-}
-
-sp<MetaData> DRMExtractor::getTrackMetaData(size_t index, uint32_t flags) {
-    return mOriginalExtractor->getTrackMetaData(index, flags);
-}
-
-sp<MetaData> DRMExtractor::getMetaData() {
-    return mOriginalExtractor->getMetaData();
-}
-
-bool SniffDRM(
-    const sp<DataSource> &source, String8 *mimeType, float *confidence,
-        sp<AMessage> *) {
-    sp<DecryptHandle> decryptHandle = source->DrmInitialization();
-
-    if (decryptHandle != NULL) {
-        if (decryptHandle->decryptApiType == DecryptApiType::CONTAINER_BASED) {
-            *mimeType = String8("drm+container_based+") + decryptHandle->mimeType;
-            *confidence = 10.0f;
-        } else if (decryptHandle->decryptApiType == DecryptApiType::ELEMENTARY_STREAM_BASED) {
-            *mimeType = String8("drm+es_based+") + decryptHandle->mimeType;
-            *confidence = 10.0f;
-        } else {
-            return false;
-        }
-
-        return true;
-    }
-
-    return false;
-}
-} //namespace android
-
diff --git a/media/libstagefright/DataConverter.cpp b/media/libstagefright/DataConverter.cpp
index aea47f3..52be054 100644
--- a/media/libstagefright/DataConverter.cpp
+++ b/media/libstagefright/DataConverter.cpp
@@ -21,13 +21,13 @@
 
 #include <audio_utils/primitives.h>
 
-#include <media/stagefright/foundation/ABuffer.h>
+#include <media/MediaCodecBuffer.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/AUtils.h>
 
 namespace android {
 
-status_t DataConverter::convert(const sp<ABuffer> &source, sp<ABuffer> &target) {
+status_t DataConverter::convert(const sp<MediaCodecBuffer> &source, sp<MediaCodecBuffer> &target) {
     CHECK(source->base() != target->base());
     size_t size = targetSize(source->size());
     status_t err = OK;
@@ -43,7 +43,8 @@
     return err;
 }
 
-status_t DataConverter::safeConvert(const sp<ABuffer> &source, sp<ABuffer> &target) {
+status_t DataConverter::safeConvert(
+        const sp<MediaCodecBuffer> &source, sp<MediaCodecBuffer> &target) {
     memcpy(target->base(), source->data(), source->size());
     return OK;
 }
@@ -101,7 +102,7 @@
     return NULL;
 }
 
-status_t AudioConverter::safeConvert(const sp<ABuffer> &src, sp<ABuffer> &tgt) {
+status_t AudioConverter::safeConvert(const sp<MediaCodecBuffer> &src, sp<MediaCodecBuffer> &tgt) {
     if (mTo == kAudioEncodingPcm8bit && mFrom == kAudioEncodingPcm16bit) {
         memcpy_to_u8_from_i16((uint8_t*)tgt->base(), (const int16_t*)src->data(), src->size() / 2);
     } else if (mTo == kAudioEncodingPcm8bit && mFrom == kAudioEncodingPcmFloat) {
diff --git a/media/libstagefright/DataSource.cpp b/media/libstagefright/DataSource.cpp
index 2cfadba..ded79f3 100644
--- a/media/libstagefright/DataSource.cpp
+++ b/media/libstagefright/DataSource.cpp
@@ -16,24 +16,9 @@
 //#define LOG_NDEBUG 0
 #define LOG_TAG "DataSource"
 
-#include "include/AMRExtractor.h"
-
-#include "include/AACExtractor.h"
 #include "include/CallbackDataSource.h"
-#include "include/DRMExtractor.h"
-#include "include/FLACExtractor.h"
 #include "include/HTTPBase.h"
-#include "include/MidiExtractor.h"
-#include "include/MP3Extractor.h"
-#include "include/MPEG2PSExtractor.h"
-#include "include/MPEG2TSExtractor.h"
-#include "include/MPEG4Extractor.h"
 #include "include/NuCachedSource2.h"
-#include "include/OggExtractor.h"
-#include "include/WAVExtractor.h"
-#include "include/WVMExtractor.h"
-
-#include "matroska/MatroskaExtractor.h"
 
 #include <media/IMediaHTTPConnection.h>
 #include <media/IMediaHTTPService.h>
@@ -44,12 +29,15 @@
 #include <media/stagefright/FileSource.h>
 #include <media/stagefright/MediaErrors.h>
 #include <media/stagefright/MediaHTTP.h>
+#include <media/stagefright/Utils.h>
 #include <utils/String8.h>
 
 #include <cutils/properties.h>
 
 #include <private/android_filesystem_config.h>
 
+#include <arpa/inet.h>
+
 namespace android {
 
 bool DataSource::getUInt16(off64_t offset, uint16_t *x) {
@@ -112,83 +100,6 @@
 
 ////////////////////////////////////////////////////////////////////////////////
 
-Mutex DataSource::gSnifferMutex;
-List<DataSource::SnifferFunc> DataSource::gSniffers;
-bool DataSource::gSniffersRegistered = false;
-
-bool DataSource::sniff(
-        String8 *mimeType, float *confidence, sp<AMessage> *meta) {
-    *mimeType = "";
-    *confidence = 0.0f;
-    meta->clear();
-
-    {
-        Mutex::Autolock autoLock(gSnifferMutex);
-        if (!gSniffersRegistered) {
-            return false;
-        }
-    }
-
-    for (List<SnifferFunc>::iterator it = gSniffers.begin();
-         it != gSniffers.end(); ++it) {
-        String8 newMimeType;
-        float newConfidence;
-        sp<AMessage> newMeta;
-        if ((*it)(this, &newMimeType, &newConfidence, &newMeta)) {
-            if (newConfidence > *confidence) {
-                *mimeType = newMimeType;
-                *confidence = newConfidence;
-                *meta = newMeta;
-            }
-        }
-    }
-
-    return *confidence > 0.0;
-}
-
-// static
-void DataSource::RegisterSniffer_l(SnifferFunc func) {
-    for (List<SnifferFunc>::iterator it = gSniffers.begin();
-         it != gSniffers.end(); ++it) {
-        if (*it == func) {
-            return;
-        }
-    }
-
-    gSniffers.push_back(func);
-}
-
-// static
-void DataSource::RegisterDefaultSniffers() {
-    Mutex::Autolock autoLock(gSnifferMutex);
-    if (gSniffersRegistered) {
-        return;
-    }
-
-    RegisterSniffer_l(SniffMPEG4);
-    RegisterSniffer_l(SniffMatroska);
-    RegisterSniffer_l(SniffOgg);
-    RegisterSniffer_l(SniffWAV);
-    RegisterSniffer_l(SniffFLAC);
-    RegisterSniffer_l(SniffAMR);
-    RegisterSniffer_l(SniffMPEG2TS);
-    RegisterSniffer_l(SniffMP3);
-    RegisterSniffer_l(SniffAAC);
-    RegisterSniffer_l(SniffMPEG2PS);
-    if (getuid() == AID_MEDIA) {
-        // WVM only in the media server process
-        RegisterSniffer_l(SniffWVM);
-    }
-    RegisterSniffer_l(SniffMidi);
-
-    char value[PROPERTY_VALUE_MAX];
-    if (property_get("drm.service.enabled", value, NULL)
-            && (!strcmp(value, "1") || !strcasecmp(value, "true"))) {
-        RegisterSniffer_l(SniffDRM);
-    }
-    gSniffersRegistered = true;
-}
-
 // static
 sp<DataSource> DataSource::CreateFromURI(
         const sp<IMediaHTTPService> &httpService,
@@ -200,14 +111,10 @@
         *contentType = "";
     }
 
-    bool isWidevine = !strncasecmp("widevine://", uri, 11);
-
     sp<DataSource> source;
     if (!strncasecmp("file://", uri, 7)) {
         source = new FileSource(uri + 7);
-    } else if (!strncasecmp("http://", uri, 7)
-            || !strncasecmp("https://", uri, 8)
-            || isWidevine) {
+    } else if (!strncasecmp("http://", uri, 7) || !strncasecmp("https://", uri, 8)) {
         if (httpService == NULL) {
             ALOGE("Invalid http service!");
             return NULL;
@@ -222,14 +129,6 @@
             httpSource = new MediaHTTP(conn);
         }
 
-        String8 tmp;
-        if (isWidevine) {
-            tmp = String8("http://");
-            tmp.append(uri + 11);
-
-            uri = tmp.string();
-        }
-
         String8 cacheConfig;
         bool disconnectAtHighwatermark = false;
         KeyedVector<String8, String8> nonCacheSpecificHeaders;
@@ -246,20 +145,14 @@
             return NULL;
         }
 
-        if (!isWidevine) {
-            if (contentType != NULL) {
-                *contentType = httpSource->getMIMEType();
-            }
-
-            source = NuCachedSource2::Create(
-                    httpSource,
-                    cacheConfig.isEmpty() ? NULL : cacheConfig.string(),
-                    disconnectAtHighwatermark);
-        } else {
-            // We do not want that prefetching, caching, datasource wrapper
-            // in the widevine:// case.
-            source = httpSource;
+        if (contentType != NULL) {
+            *contentType = httpSource->getMIMEType();
         }
+
+        source = NuCachedSource2::Create(
+                httpSource,
+                cacheConfig.isEmpty() ? NULL : cacheConfig.string(),
+                disconnectAtHighwatermark);
     } else if (!strncasecmp("data:", uri, 5)) {
         source = DataURISource::Create(uri);
     } else {
diff --git a/media/libstagefright/MPEG2TSWriter.cpp b/media/libstagefright/MPEG2TSWriter.cpp
index 931b280..b83b0a0 100644
--- a/media/libstagefright/MPEG2TSWriter.cpp
+++ b/media/libstagefright/MPEG2TSWriter.cpp
@@ -37,7 +37,7 @@
 struct MPEG2TSWriter::SourceInfo : public AHandler {
     explicit SourceInfo(const sp<IMediaSource> &source);
 
-    void start(const sp<AMessage> &notify);
+    void start(const sp<AMessage> &notify, const sp<MetaData> &params);
     void stop();
 
     unsigned streamType() const;
@@ -75,7 +75,7 @@
 
     sp<ABuffer> mAACCodecSpecificData;
 
-    sp<ABuffer> mAACBuffer;
+    sp<ABuffer> mBuffer;
 
     sp<ABuffer> mLastAccessUnit;
     bool mEOSReceived;
@@ -85,10 +85,8 @@
 
     void extractCodecSpecificData();
 
-    bool appendAACFrames(MediaBuffer *buffer);
-    bool flushAACFrames();
-
-    void postAVCFrame(MediaBuffer *buffer);
+    void appendAACFrames(MediaBuffer *buffer);
+    void appendAVCFrame(MediaBuffer *buffer);
 
     DISALLOW_EVIL_CONSTRUCTORS(SourceInfo);
 };
@@ -129,13 +127,14 @@
     return mContinuityCounter;
 }
 
-void MPEG2TSWriter::SourceInfo::start(const sp<AMessage> &notify) {
+void MPEG2TSWriter::SourceInfo::start(const sp<AMessage> &notify, const sp<MetaData> &params) {
     mLooper->registerHandler(this);
     mLooper->start();
-
     mNotify = notify;
 
-    (new AMessage(kWhatStart, this))->post();
+    sp<AMessage> msg = new AMessage(kWhatStart, this);
+    msg->setObject("meta", params);
+    msg->post();
 }
 
 void MPEG2TSWriter::SourceInfo::stop() {
@@ -250,56 +249,51 @@
     notify->post();
 }
 
-void MPEG2TSWriter::SourceInfo::postAVCFrame(MediaBuffer *buffer) {
+void MPEG2TSWriter::SourceInfo::appendAVCFrame(MediaBuffer *buffer) {
     sp<AMessage> notify = mNotify->dup();
     notify->setInt32("what", kNotifyBuffer);
 
-    sp<ABuffer> copy =
-        new ABuffer(buffer->range_length());
-    memcpy(copy->data(),
+    if (mBuffer == NULL || buffer->range_length() > mBuffer->capacity()) {
+        mBuffer = new ABuffer(buffer->range_length());
+    }
+    mBuffer->setRange(0, 0);
+
+    memcpy(mBuffer->data(),
            (const uint8_t *)buffer->data()
             + buffer->range_offset(),
            buffer->range_length());
 
     int64_t timeUs;
     CHECK(buffer->meta_data()->findInt64(kKeyTime, &timeUs));
-    copy->meta()->setInt64("timeUs", timeUs);
+    mBuffer->meta()->setInt64("timeUs", timeUs);
 
     int32_t isSync;
     if (buffer->meta_data()->findInt32(kKeyIsSyncFrame, &isSync)
             && isSync != 0) {
-        copy->meta()->setInt32("isSync", true);
+        mBuffer->meta()->setInt32("isSync", true);
     }
 
-    notify->setBuffer("buffer", copy);
+    mBuffer->setRange(0, buffer->range_length());
+
+    notify->setBuffer("buffer", mBuffer);
     notify->post();
 }
 
-bool MPEG2TSWriter::SourceInfo::appendAACFrames(MediaBuffer *buffer) {
-    bool accessUnitPosted = false;
+void MPEG2TSWriter::SourceInfo::appendAACFrames(MediaBuffer *buffer) {
+    sp<AMessage> notify = mNotify->dup();
+    notify->setInt32("what", kNotifyBuffer);
 
-    if (mAACBuffer != NULL
-            && mAACBuffer->size() + 7 + buffer->range_length()
-                    > mAACBuffer->capacity()) {
-        accessUnitPosted = flushAACFrames();
+    if (mBuffer == NULL || 7 + buffer->range_length() > mBuffer->capacity()) {
+        mBuffer = new ABuffer(7 + buffer->range_length());
     }
 
-    if (mAACBuffer == NULL) {
-        size_t alloc = 4096;
-        if (buffer->range_length() + 7 > alloc) {
-            alloc = 7 + buffer->range_length();
-        }
+    int64_t timeUs;
+    CHECK(buffer->meta_data()->findInt64(kKeyTime, &timeUs));
 
-        mAACBuffer = new ABuffer(alloc);
+    mBuffer->meta()->setInt64("timeUs", timeUs);
+    mBuffer->meta()->setInt32("isSync", true);
 
-        int64_t timeUs;
-        CHECK(buffer->meta_data()->findInt64(kKeyTime, &timeUs));
-
-        mAACBuffer->meta()->setInt64("timeUs", timeUs);
-        mAACBuffer->meta()->setInt32("isSync", true);
-
-        mAACBuffer->setRange(0, 0);
-    }
+    mBuffer->setRange(0, 0);
 
     const uint8_t *codec_specific_data = mAACCodecSpecificData->data();
 
@@ -312,7 +306,7 @@
     unsigned channel_configuration =
         (codec_specific_data[1] >> 3) & 0x0f;
 
-    uint8_t *ptr = mAACBuffer->data() + mAACBuffer->size();
+    uint8_t *ptr = mBuffer->data() + mBuffer->size();
 
     const uint32_t aac_frame_length = buffer->range_length() + 7;
 
@@ -340,24 +334,10 @@
 
     ptr += buffer->range_length();
 
-    mAACBuffer->setRange(0, ptr - mAACBuffer->data());
+    mBuffer->setRange(0, ptr - mBuffer->data());
 
-    return accessUnitPosted;
-}
-
-bool MPEG2TSWriter::SourceInfo::flushAACFrames() {
-    if (mAACBuffer == NULL) {
-        return false;
-    }
-
-    sp<AMessage> notify = mNotify->dup();
-    notify->setInt32("what", kNotifyBuffer);
-    notify->setBuffer("buffer", mAACBuffer);
+    notify->setBuffer("buffer", mBuffer);
     notify->post();
-
-    mAACBuffer.clear();
-
-    return true;
 }
 
 void MPEG2TSWriter::SourceInfo::readMore() {
@@ -368,7 +348,10 @@
     switch (msg->what()) {
         case kWhatStart:
         {
-            status_t err = mSource->start();
+            sp<RefBase> obj;
+            CHECK(msg->findObject("meta", &obj));
+            MetaData *params = static_cast<MetaData *>(obj.get());
+            status_t err = mSource->start(params);
             if (err != OK) {
                 sp<AMessage> notify = mNotify->dup();
                 notify->setInt32("what", kNotifyStartFailed);
@@ -376,6 +359,7 @@
                 break;
             }
 
+            // Extract CSD from config format.
             extractCodecSpecificData();
 
             readMore();
@@ -388,10 +372,6 @@
             status_t err = mSource->read(&buffer);
 
             if (err != OK && err != INFO_FORMAT_CHANGED) {
-                if (mStreamType == 0x0f) {
-                    flushAACFrames();
-                }
-
                 sp<AMessage> notify = mNotify->dup();
                 notify->setInt32("what", kNotifyReachedEOS);
                 notify->setInt32("status", err);
@@ -401,23 +381,20 @@
 
             if (err == OK) {
                 if (mStreamType == 0x0f && mAACCodecSpecificData == NULL) {
-                    // The first buffer contains codec specific data.
-
+                    // The first audio buffer must contain CSD if not received yet.
                     CHECK_GE(buffer->range_length(), 2u);
-
                     mAACCodecSpecificData = new ABuffer(buffer->range_length());
 
                     memcpy(mAACCodecSpecificData->data(),
                            (const uint8_t *)buffer->data()
                             + buffer->range_offset(),
                            buffer->range_length());
+                    readMore();
                 } else if (buffer->range_length() > 0) {
                     if (mStreamType == 0x0f) {
-                        if (!appendAACFrames(buffer)) {
-                            msg->post();
-                        }
+                        appendAACFrames(buffer);
                     } else {
-                        postAVCFrame(buffer);
+                        appendAVCFrame(buffer);
                     }
                 } else {
                     readMore();
@@ -452,7 +429,6 @@
 
     int64_t timeUs;
     CHECK(mLastAccessUnit->meta()->findInt64("timeUs", &timeUs));
-
     return timeUs;
 }
 
@@ -542,7 +518,7 @@
     return OK;
 }
 
-status_t MPEG2TSWriter::start(MetaData * /* param */) {
+status_t MPEG2TSWriter::start(MetaData *param ) {
     CHECK(!mStarted);
 
     mStarted = true;
@@ -556,7 +532,7 @@
 
         notify->setInt32("source-index", i);
 
-        mSources.editItemAt(i)->start(notify);
+        mSources.editItemAt(i)->start(notify, param);
     }
 
     return OK;
@@ -594,13 +570,13 @@
         {
             int32_t sourceIndex;
             CHECK(msg->findInt32("source-index", &sourceIndex));
+            sp<SourceInfo> source = mSources.editItemAt(sourceIndex);
 
             int32_t what;
             CHECK(msg->findInt32("what", &what));
 
             if (what == SourceInfo::kNotifyReachedEOS
                     || what == SourceInfo::kNotifyStartFailed) {
-                sp<SourceInfo> source = mSources.editItemAt(sourceIndex);
                 source->setEOSReceived();
 
                 sp<ABuffer> buffer = source->lastAccessUnit();
@@ -615,6 +591,7 @@
             } else if (what == SourceInfo::kNotifyBuffer) {
                 sp<ABuffer> buffer;
                 CHECK(msg->findBuffer("buffer", &buffer));
+                CHECK(source->lastAccessUnit() == NULL);
 
                 int32_t oob;
                 if (msg->findInt32("oob", &oob) && oob) {
@@ -635,15 +612,10 @@
                 // Rinse, repeat.
                 // If we don't have data on any track we don't write
                 // anything just yet.
-
-                sp<SourceInfo> source = mSources.editItemAt(sourceIndex);
-
-                CHECK(source->lastAccessUnit() == NULL);
                 source->setLastAccessUnit(buffer);
 
                 ALOGV("lastAccessUnitTimeUs[%d] = %.2f secs",
-                     sourceIndex, source->lastAccessUnitTimeUs() / 1E6);
-
+                    sourceIndex, source->lastAccessUnitTimeUs() / 1E6);
                 int64_t minTimeUs = -1;
                 size_t minIndex = 0;
 
@@ -665,15 +637,14 @@
                 }
 
                 if (minTimeUs < 0) {
-                    ALOGV("not a all tracks have valid data.");
+                    ALOGV("not all tracks have valid data.");
                     break;
                 }
 
                 ALOGV("writing access unit at time %.2f secs (index %zu)",
-                     minTimeUs / 1E6, minIndex);
+                    minTimeUs / 1E6, minIndex);
 
                 source = mSources.editItemAt(minIndex);
-
                 buffer = source->lastAccessUnit();
                 source->setLastAccessUnit(NULL);
 
diff --git a/media/libstagefright/MPEG4Extractor.cpp b/media/libstagefright/MPEG4Extractor.cpp
index 02be033..a017737 100644
--- a/media/libstagefright/MPEG4Extractor.cpp
+++ b/media/libstagefright/MPEG4Extractor.cpp
@@ -72,6 +72,7 @@
                 Vector<SidxEntry> &sidx,
                 const Trex *trex,
                 off64_t firstMoofOffset);
+    virtual status_t init();
 
     virtual status_t start(MetaData *params = NULL);
     virtual status_t stop();
@@ -815,6 +816,10 @@
         ALOGE("b/23540914");
         return ERROR_MALFORMED;
     }
+    if (depth > 100) {
+        ALOGE("b/27456299");
+        return ERROR_MALFORMED;
+    }
     uint32_t hdr[2];
     if (mDataSource->readAt(*offset, hdr, 8) < 8) {
         return ERROR_IO;
@@ -1391,6 +1396,28 @@
             }
             break;
         }
+        case FOURCC('m', 'e', 't', 't'):
+        {
+            *offset += chunk_size;
+
+            if (mLastTrack == NULL)
+                return ERROR_MALFORMED;
+
+            sp<ABuffer> buffer = new ABuffer(chunk_data_size);
+            if (buffer->data() == NULL) {
+                return NO_MEMORY;
+            }
+
+            if (mDataSource->readAt(
+                        data_offset, buffer->data(), chunk_data_size) < chunk_data_size) {
+                return ERROR_IO;
+            }
+
+            String8 mimeFormat((const char *)(buffer->data()), chunk_data_size);
+            mLastTrack->meta->setCString(kKeyMIMEType, mimeFormat.string());
+
+            break;
+        }
 
         case FOURCC('m', 'p', '4', 'a'):
         case FOURCC('e', 'n', 'c', 'a'):
@@ -2149,7 +2176,10 @@
             *offset += chunk_size;
 
             if (underQTMetaPath(mPath, 3)) {
-                parseQTMetaKey(data_offset, chunk_data_size);
+                status_t err = parseQTMetaKey(data_offset, chunk_data_size);
+                if (err != OK) {
+                    return err;
+                }
             }
             break;
         }
@@ -2308,11 +2338,20 @@
 
         case FOURCC('s', 'i', 'd', 'x'):
         {
-            parseSegmentIndex(data_offset, chunk_data_size);
+            status_t err = parseSegmentIndex(data_offset, chunk_data_size);
+            if (err != OK) {
+                return err;
+            }
             *offset += chunk_size;
             return UNKNOWN_ERROR; // stop parsing after sidx
         }
 
+        case FOURCC('a', 'c', '-', '3'):
+        {
+            *offset += chunk_size;
+            return parseAC3SampleEntry(data_offset);
+        }
+
         case FOURCC('f', 't', 'y', 'p'):
         {
             if (chunk_data_size < 8 || depth != 0) {
@@ -2350,7 +2389,10 @@
             // check if we're parsing 'ilst' for meta keys
             // if so, treat type as a number (key-id).
             if (underQTMetaPath(mPath, 3)) {
-                parseQTMetaVal(chunk_type, data_offset, chunk_data_size);
+                status_t err = parseQTMetaVal(chunk_type, data_offset, chunk_data_size);
+                if (err != OK) {
+                    return err;
+                }
             }
 
             *offset += chunk_size;
@@ -2361,6 +2403,99 @@
     return OK;
 }
 
+status_t MPEG4Extractor::parseAC3SampleEntry(off64_t offset) {
+    // skip 16 bytes:
+    //  + 6-byte reserved,
+    //  + 2-byte data reference index,
+    //  + 8-byte reserved
+    offset += 16;
+    uint16_t channelCount;
+    if (!mDataSource->getUInt16(offset, &channelCount)) {
+        return ERROR_MALFORMED;
+    }
+    // skip 8 bytes:
+    //  + 2-byte channelCount,
+    //  + 2-byte sample size,
+    //  + 4-byte reserved
+    offset += 8;
+    uint16_t sampleRate;
+    if (!mDataSource->getUInt16(offset, &sampleRate)) {
+        ALOGE("MPEG4Extractor: error while reading ac-3 block: cannot read sample rate");
+        return ERROR_MALFORMED;
+    }
+
+    // skip 4 bytes:
+    //  + 2-byte sampleRate,
+    //  + 2-byte reserved
+    offset += 4;
+    return parseAC3SpecificBox(offset, sampleRate);
+}
+
+status_t MPEG4Extractor::parseAC3SpecificBox(
+        off64_t offset, uint16_t sampleRate) {
+    uint32_t size;
+    // + 4-byte size
+    // + 4-byte type
+    // + 3-byte payload
+    const uint32_t kAC3SpecificBoxSize = 11;
+    if (!mDataSource->getUInt32(offset, &size) || size < kAC3SpecificBoxSize) {
+        ALOGE("MPEG4Extractor: error while reading ac-3 block: cannot read specific box size");
+        return ERROR_MALFORMED;
+    }
+
+    offset += 4;
+    uint32_t type;
+    if (!mDataSource->getUInt32(offset, &type) || type != FOURCC('d', 'a', 'c', '3')) {
+        ALOGE("MPEG4Extractor: error while reading ac-3 specific block: header not dac3");
+        return ERROR_MALFORMED;
+    }
+
+    offset += 4;
+    const uint32_t kAC3SpecificBoxPayloadSize = 3;
+    uint8_t chunk[kAC3SpecificBoxPayloadSize];
+    if (mDataSource->readAt(offset, chunk, sizeof(chunk)) != sizeof(chunk)) {
+        ALOGE("MPEG4Extractor: error while reading ac-3 specific block: bitstream fields");
+        return ERROR_MALFORMED;
+    }
+
+    ABitReader br(chunk, sizeof(chunk));
+    static const unsigned channelCountTable[] = {2, 1, 2, 3, 3, 4, 4, 5};
+    static const unsigned sampleRateTable[] = {48000, 44100, 32000};
+
+    unsigned fscod = br.getBits(2);
+    if (fscod == 3) {
+        ALOGE("Incorrect fscod (3) in AC3 header");
+        return ERROR_MALFORMED;
+    }
+    unsigned boxSampleRate = sampleRateTable[fscod];
+    if (boxSampleRate != sampleRate) {
+        ALOGE("sample rate mismatch: boxSampleRate = %d, sampleRate = %d",
+            boxSampleRate, sampleRate);
+        return ERROR_MALFORMED;
+    }
+
+    unsigned bsid = br.getBits(5);
+    if (bsid > 8) {
+        ALOGW("Incorrect bsid in AC3 header. Possibly E-AC-3?");
+        return ERROR_MALFORMED;
+    }
+
+    // skip
+    unsigned bsmod __unused = br.getBits(3);
+
+    unsigned acmod = br.getBits(3);
+    unsigned lfeon = br.getBits(1);
+    unsigned channelCount = channelCountTable[acmod] + lfeon;
+
+    if (mLastTrack == NULL) {
+        return ERROR_MALFORMED;
+    }
+    mLastTrack->meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_AC3);
+    mLastTrack->meta->setInt32(kKeyChannelCount, channelCount);
+    mLastTrack->meta->setInt32(kKeySampleRate, sampleRate);
+    return OK;
+}
+
 status_t MPEG4Extractor::parseSegmentIndex(off64_t offset, size_t size) {
   ALOGV("MPEG4Extractor::parseSegmentIndex");
 
@@ -2689,6 +2824,10 @@
 }
 
 status_t MPEG4Extractor::parseITunesMetaData(off64_t offset, size_t size) {
+    if (size == 0) {
+        return OK;
+    }
+
     if (size < 4 || size == SIZE_MAX) {
         return ERROR_MALFORMED;
     }
@@ -2905,7 +3044,7 @@
 
     int32_t type = U32_AT(&buffer[0]);
     if ((type == FOURCC('n', 'c', 'l', 'x') && size >= 11)
-            || (type == FOURCC('n', 'c', 'l', 'c' && size >= 10))) {
+            || (type == FOURCC('n', 'c', 'l', 'c') && size >= 10)) {
         int32_t primaries = U16_AT(&buffer[4]);
         int32_t transfer = U16_AT(&buffer[6]);
         int32_t coeffs = U16_AT(&buffer[8]);
@@ -3173,9 +3312,13 @@
         }
     }
 
-    return new MPEG4Source(this,
+    sp<MPEG4Source> source =  new MPEG4Source(this,
             track->meta, mDataSource, track->timescale, track->sampleTable,
             mSidxEntries, trex, mMoofOffset);
+    if (source->init() != OK) {
+        return NULL;
+    }
+    return source;
 }
 
 // static
@@ -3572,6 +3715,7 @@
       mTrex(trex),
       mFirstMoofOffset(firstMoofOffset),
       mCurrentMoofOffset(firstMoofOffset),
+      mNextMoofOffset(-1),
       mCurrentTime(0),
       mCurrentSampleInfoAllocSize(0),
       mCurrentSampleInfoSizes(NULL),
@@ -3636,10 +3780,14 @@
 
     CHECK(format->findInt32(kKeyTrackID, &mTrackId));
 
+}
+
+status_t MPEG4Source::init() {
     if (mFirstMoofOffset != 0) {
         off64_t offset = mFirstMoofOffset;
-        parseChunk(&offset);
+        return parseChunk(&offset);
     }
+    return OK;
 }
 
 MPEG4Source::~MPEG4Source() {
@@ -3770,9 +3918,30 @@
                     }
                     chunk_size = ntohl(hdr[0]);
                     chunk_type = ntohl(hdr[1]);
+                    if (chunk_size == 1) {
+                        // ISO/IEC 14496-12:2012, 8.8.4 Movie Fragment Box, moof is a Box
+                        // which is defined in 4.2 Object Structure.
+                        // When chunk_size==1, 8 bytes follows as "largesize".
+                        if (mDataSource->readAt(*offset + 8, &chunk_size, 8) < 8) {
+                            return ERROR_IO;
+                        }
+                        chunk_size = ntoh64(chunk_size);
+                        if (chunk_size < 16) {
+                            // The smallest valid chunk is 16 bytes long in this case.
+                            return ERROR_MALFORMED;
+                        }
+                    } else if (chunk_size == 0) {
+                        // next box extends to end of file.
+                    } else if (chunk_size < 8) {
+                        // The smallest valid chunk is 8 bytes long in this case.
+                        return ERROR_MALFORMED;
+                    }
+
                     if (chunk_type == FOURCC('m', 'o', 'o', 'f')) {
                         mNextMoofOffset = *offset;
                         break;
+                    } else if (chunk_size == 0) {
+                        break;
                     }
                     *offset += chunk_size;
                 }
@@ -4656,17 +4825,25 @@
                 totalOffset += se->mSize;
             }
             mCurrentMoofOffset = totalOffset;
+            mNextMoofOffset = -1;
             mCurrentSamples.clear();
             mCurrentSampleIndex = 0;
-            parseChunk(&totalOffset);
+            status_t err = parseChunk(&totalOffset);
+            if (err != OK) {
+                return err;
+            }
             mCurrentTime = totalTime * mTimescale / 1000000ll;
         } else {
             // without sidx boxes, we can only seek to 0
             mCurrentMoofOffset = mFirstMoofOffset;
+            mNextMoofOffset = -1;
             mCurrentSamples.clear();
             mCurrentSampleIndex = 0;
             off64_t tmp = mCurrentMoofOffset;
-            parseChunk(&tmp);
+            status_t err = parseChunk(&tmp);
+            if (err != OK) {
+                return err;
+            }
             mCurrentTime = 0;
         }
 
@@ -4695,7 +4872,10 @@
             mCurrentMoofOffset = nextMoof;
             mCurrentSamples.clear();
             mCurrentSampleIndex = 0;
-            parseChunk(&nextMoof);
+            status_t err = parseChunk(&nextMoof);
+            if (err != OK) {
+                return err;
+            }
             if (mCurrentSampleIndex >= mCurrentSamples.size()) {
                 return ERROR_END_OF_STREAM;
             }
@@ -4963,6 +5143,10 @@
     return NULL;
 }
 
+void MPEG4Extractor::populateMetrics() {
+    ALOGV("MPEG4Extractor::populateMetrics");
+}
+
 static bool LegacySniffMPEG4(
         const sp<DataSource> &source, String8 *mimeType, float *confidence) {
     uint8_t header[8];
diff --git a/media/libstagefright/MPEG4Writer.cpp b/media/libstagefright/MPEG4Writer.cpp
index 9de5c26..cafedba 100755
--- a/media/libstagefright/MPEG4Writer.cpp
+++ b/media/libstagefright/MPEG4Writer.cpp
@@ -69,6 +69,7 @@
 static const uint8_t kNalUnitTypeSeqParamSet = 0x07;
 static const uint8_t kNalUnitTypePicParamSet = 0x08;
 static const int64_t kInitialDelayTimeUs     = 700000LL;
+static const int64_t kMaxMetadataSize = 0x4000000LL;   // 64MB max per-frame metadata size
 
 static const char kMetaKey_Version[]    = "com.android.version";
 #ifdef SHOW_MODEL_BUILD
@@ -78,6 +79,8 @@
 static const char kMetaKey_CaptureFps[] = "com.android.capture.fps";
 static const char kMetaKey_TemporalLayerCount[] = "com.android.video.temporal_layers_count";
 
+static const int kTimestampDebugCount = 10;
+
 static const uint8_t kMandatoryHevcNalUnitTypes[3] = {
     kHevcNalUnitTypeVps,
     kHevcNalUnitTypeSps,
@@ -100,7 +103,7 @@
     ~Track();
 
     status_t start(MetaData *params);
-    status_t stop();
+    status_t stop(bool stopSource = true);
     status_t pause();
     bool reachedEOS();
 
@@ -116,6 +119,8 @@
     int32_t getTrackId() const { return mTrackId; }
     status_t dump(int fd, const Vector<String16>& args) const;
     static const char *getFourCCForMime(const char *mime);
+    const char *getTrackType() const;
+    void resetInternal();
 
 private:
     enum {
@@ -271,7 +276,9 @@
     bool mIsAvc;
     bool mIsHevc;
     bool mIsAudio;
+    bool mIsVideo;
     bool mIsMPEG4;
+    bool mGotStartKeyFrame;
     bool mIsMalformed;
     int32_t mTrackId;
     int64_t mTrackDurationUs;
@@ -300,6 +307,9 @@
     int64_t mMinCttsOffsetTimeUs;
     int64_t mMaxCttsOffsetTimeUs;
 
+    // Save the last 10 frames' timestamp for debug.
+    std::list<std::pair<int64_t, int64_t>> mTimestampDebugHelper;
+
     // Sequence parameter set or picture parameter set
     struct AVCParamSet {
         AVCParamSet(uint16_t length, const uint8_t *data)
@@ -329,6 +339,8 @@
     // Update the audio track's drift information.
     void updateDriftTime(const sp<MetaData>& meta);
 
+    void dumpTimeStamps();
+
     int32_t getStartTimeOffsetScaledTime() const;
 
     static void *ThreadWrapper(void *me);
@@ -393,6 +405,7 @@
     void writeMdhdBox(uint32_t now);
     void writeSmhdBox();
     void writeVmhdBox();
+    void writeNmhdBox();
     void writeHdlrBox();
     void writeTkhdBox(uint32_t now);
     void writeColrBox();
@@ -400,47 +413,15 @@
     void writeMp4vEsdsBox();
     void writeAudioFourCCBox();
     void writeVideoFourCCBox();
+    void writeMetadataFourCCBox();
     void writeStblBox(bool use32BitOffset);
 
     Track(const Track &);
     Track &operator=(const Track &);
 };
 
-MPEG4Writer::MPEG4Writer(int fd)
-    : mFd(dup(fd)),
-      mInitCheck(mFd < 0? NO_INIT: OK),
-      mIsRealTimeRecording(true),
-      mUse4ByteNalLength(true),
-      mUse32BitOffset(true),
-      mIsFileSizeLimitExplicitlyRequested(false),
-      mPaused(false),
-      mStarted(false),
-      mWriterThreadStarted(false),
-      mOffset(0),
-      mMdatOffset(0),
-      mMoovBoxBuffer(NULL),
-      mMoovBoxBufferOffset(0),
-      mWriteMoovBoxToMemory(false),
-      mFreeBoxOffset(0),
-      mStreamableFile(false),
-      mEstimatedMoovBoxSize(0),
-      mMoovExtraSize(0),
-      mInterleaveDurationUs(1000000),
-      mTimeScale(-1),
-      mStartTimestampUs(-1ll),
-      mLatitudex10000(0),
-      mLongitudex10000(0),
-      mAreGeoTagsAvailable(false),
-      mStartTimeOffsetMs(-1),
-      mMetaKeys(new AMessage()) {
-    addDeviceMeta();
-
-    // Verify mFd is seekable
-    off64_t off = lseek64(mFd, 0, SEEK_SET);
-    if (off < 0) {
-        ALOGE("cannot seek mFd: %s (%d)", strerror(errno), errno);
-        release();
-    }
+MPEG4Writer::MPEG4Writer(int fd) {
+    initInternal(fd);
 }
 
 MPEG4Writer::~MPEG4Writer() {
@@ -453,6 +434,54 @@
         mTracks.erase(it);
     }
     mTracks.clear();
+
+    if (mNextFd != -1) {
+        close(mNextFd);
+    }
+}
+
+void MPEG4Writer::initInternal(int fd) {
+    ALOGV("initInternal");
+    mFd = dup(fd);
+    mNextFd = -1;
+    mInitCheck = mFd < 0? NO_INIT: OK;
+    mIsRealTimeRecording = true;
+    mUse4ByteNalLength = true;
+    mUse32BitOffset = true;
+    mIsFileSizeLimitExplicitlyRequested = false;
+    mPaused = false;
+    mStarted = false;
+    mWriterThreadStarted = false;
+    mSendNotify = false;
+    mOffset = 0;
+    mMdatOffset = 0;
+    mMoovBoxBuffer = NULL;
+    mMoovBoxBufferOffset = 0;
+    mWriteMoovBoxToMemory = false;
+    mFreeBoxOffset = 0;
+    mStreamableFile = false;
+    mEstimatedMoovBoxSize = 0;
+    mMoovExtraSize = 0;
+    mInterleaveDurationUs = 1000000;
+    mTimeScale = -1;
+    mStartTimestampUs = -1ll;
+    mLatitudex10000 = 0;
+    mLongitudex10000 = 0;
+    mAreGeoTagsAvailable = false;
+    mStartTimeOffsetMs = -1;
+    mSwitchPending = false;
+    mMetaKeys = new AMessage();
+    addDeviceMeta();
+    // Verify mFd is seekable
+    off64_t off = lseek64(mFd, 0, SEEK_SET);
+    if (off < 0) {
+        ALOGE("cannot seek mFd: %s (%d) %lld", strerror(errno), errno, (long long)mFd);
+        release();
+    }
+    for (List<Track *>::iterator it = mTracks.begin();
+         it != mTracks.end(); ++it) {
+        (*it)->resetInternal();
+    }
 }
 
 status_t MPEG4Writer::dump(
@@ -477,7 +506,7 @@
     const size_t SIZE = 256;
     char buffer[SIZE];
     String8 result;
-    snprintf(buffer, SIZE, "     %s track\n", mIsAudio? "Audio": "Video");
+    snprintf(buffer, SIZE, "     %s track\n", getTrackType());
     result.append(buffer);
     snprintf(buffer, SIZE, "       reached EOS: %s\n",
             mReachedEOS? "true": "false");
@@ -513,8 +542,10 @@
         } else if (!strcasecmp(MEDIA_MIMETYPE_VIDEO_HEVC, mime)) {
             return "hvc1";
         }
+    } else if (!strncasecmp(mime, "application/", 12)) {
+        return "mett";
     } else {
-        ALOGE("Track (%s) other than video or audio is not supported", mime);
+        ALOGE("Track (%s) other than video/audio/metadata is not supported", mime);
     }
     return NULL;
 }
@@ -526,37 +557,17 @@
         return UNKNOWN_ERROR;
     }
 
-    // At most 2 tracks can be supported.
-    if (mTracks.size() >= 2) {
-        ALOGE("Too many tracks (%zu) to add", mTracks.size());
-        return ERROR_UNSUPPORTED;
-    }
-
     CHECK(source.get() != NULL);
 
     const char *mime;
     source->getFormat()->findCString(kKeyMIMEType, &mime);
-    bool isAudio = !strncasecmp(mime, "audio/", 6);
+
     if (Track::getFourCCForMime(mime) == NULL) {
         ALOGE("Unsupported mime '%s'", mime);
         return ERROR_UNSUPPORTED;
     }
 
-    // At this point, we know the track to be added is either
-    // video or audio. Thus, we only need to check whether it
-    // is an audio track or not (if it is not, then it must be
-    // a video track).
-
-    // No more than one video or one audio track is supported.
-    for (List<Track*>::iterator it = mTracks.begin();
-         it != mTracks.end(); ++it) {
-        if ((*it)->isAudio() == isAudio) {
-            ALOGE("%s track already exists", isAudio? "Audio": "Video");
-            return ERROR_UNSUPPORTED;
-        }
-    }
-
-    // This is the first track of either audio or video.
+    // This is a metadata track or the first track of either audio or video
     // Go ahead to add the track.
     Track *track = new Track(this, source, 1 + mTracks.size());
     mTracks.push_back(track);
@@ -680,6 +691,7 @@
     if (mInitCheck != OK) {
         return UNKNOWN_ERROR;
     }
+    mStartMeta = param;
 
     /*
      * Check mMaxFileSizeLimitBytes at the beginning
@@ -937,7 +949,30 @@
     mMoovBoxBuffer = NULL;
 }
 
-status_t MPEG4Writer::reset() {
+void MPEG4Writer::finishCurrentSession() {
+    reset(false /* stopSource */);
+}
+
+status_t MPEG4Writer::switchFd() {
+    ALOGV("switchFd");
+    Mutex::Autolock l(mLock);
+    if (mSwitchPending) {
+        return OK;
+    }
+
+    if (mNextFd == -1) {
+        ALOGW("No FileDescripter for next recording");
+        return INVALID_OPERATION;
+    }
+
+    mSwitchPending = true;
+    sp<AMessage> msg = new AMessage(kWhatSwitch, mReflector);
+    status_t err = msg->post();
+
+    return err;
+}
+
+status_t MPEG4Writer::reset(bool stopSource) {
     if (mInitCheck != OK) {
         return OK;
     } else {
@@ -956,7 +991,7 @@
     int64_t minDurationUs = 0x7fffffffffffffffLL;
     for (List<Track *>::iterator it = mTracks.begin();
          it != mTracks.end(); ++it) {
-        status_t status = (*it)->stop();
+        status_t status = (*it)->stop(stopSource);
         if (err == OK && status != OK) {
             err = status;
         }
@@ -1123,9 +1158,7 @@
 
     // Test mode is enabled only if rw.media.record.test system
     // property is enabled.
-    char value[PROPERTY_VALUE_MAX];
-    if (property_get("rw.media.record.test", value, NULL) &&
-        (!strcasecmp(value, "true") || !strcasecmp(value, "1"))) {
+    if (property_get_bool("rw.media.record.test", false)) {
         return true;
     }
     return false;
@@ -1448,6 +1481,18 @@
     return OK;
 }
 
+void MPEG4Writer::notifyApproachingLimit() {
+    Mutex::Autolock autolock(mLock);
+    // Only notify once.
+    if (mSendNotify) {
+        return;
+    }
+    ALOGW("Recorded file size is approaching limit %" PRId64 "bytes",
+        mMaxFileSizeLimitBytes);
+    notify(MEDIA_RECORDER_EVENT_INFO, MEDIA_RECORDER_INFO_MAX_FILESIZE_APPROACHING, 0);
+    mSendNotify = true;
+}
+
 void MPEG4Writer::write(const void *data, size_t size) {
     write(data, 1, size);
 }
@@ -1461,7 +1506,6 @@
     if (mMaxFileSizeLimitBytes == 0) {
         return false;
     }
-
     int64_t nTotalBytesEstimate = static_cast<int64_t>(mEstimatedMoovBoxSize);
     for (List<Track *>::iterator it = mTracks.begin();
          it != mTracks.end(); ++it) {
@@ -1472,12 +1516,33 @@
         // Add 1024 bytes as error tolerance
         return nTotalBytesEstimate + 1024 >= mMaxFileSizeLimitBytes;
     }
+
     // Be conservative in the estimate: do not exceed 95% of
     // the target file limit. For small target file size limit, though,
     // this will not help.
     return (nTotalBytesEstimate >= (95 * mMaxFileSizeLimitBytes) / 100);
 }
 
+bool MPEG4Writer::approachingFileSizeLimit() {
+    // No limit
+    if (mMaxFileSizeLimitBytes == 0) {
+        return false;
+    }
+
+    int64_t nTotalBytesEstimate = static_cast<int64_t>(mEstimatedMoovBoxSize);
+    for (List<Track *>::iterator it = mTracks.begin();
+         it != mTracks.end(); ++it) {
+        nTotalBytesEstimate += (*it)->getEstimatedTrackSizeBytes();
+    }
+
+    if (!mStreamableFile) {
+        // Add 1024 bytes as error tolerance
+        return nTotalBytesEstimate + 1024 >= (90 * mMaxFileSizeLimitBytes) / 100;
+    }
+
+    return (nTotalBytesEstimate >= (90 * mMaxFileSizeLimitBytes) / 100);
+}
+
 bool MPEG4Writer::exceedsFileDurationLimit() {
     // No limit
     if (mMaxFileDurationLimitUs == 0) {
@@ -1537,6 +1602,7 @@
       mPaused(false),
       mResumed(false),
       mStarted(false),
+      mGotStartKeyFrame(false),
       mIsMalformed(false),
       mTrackId(trackId),
       mTrackDurationUs(0),
@@ -1561,11 +1627,12 @@
     mIsAvc = !strcasecmp(mime, MEDIA_MIMETYPE_VIDEO_AVC);
     mIsHevc = !strcasecmp(mime, MEDIA_MIMETYPE_VIDEO_HEVC);
     mIsAudio = !strncasecmp(mime, "audio/", 6);
+    mIsVideo = !strncasecmp(mime, "video/", 6);
     mIsMPEG4 = !strcasecmp(mime, MEDIA_MIMETYPE_VIDEO_MPEG4) ||
                !strcasecmp(mime, MEDIA_MIMETYPE_AUDIO_AAC);
 
     // store temporal layer count
-    if (!mIsAudio) {
+    if (mIsVideo) {
         int32_t count;
         if (mMeta->findInt32(kKeyTemporalLayerCount, &count) && count > 1) {
             mOwner->setTemporalLayerCount(count);
@@ -1575,6 +1642,50 @@
     setTimeScale();
 }
 
+// Clear all the internal states except the CSD data.
+void MPEG4Writer::Track::resetInternal() {
+      mDone = false;
+      mPaused = false;
+      mResumed = false;
+      mStarted = false;
+      mGotStartKeyFrame = false;
+      mIsMalformed = false;
+      mTrackDurationUs = 0;
+      mEstimatedTrackSizeBytes = 0;
+      mSamplesHaveSameSize = 0;
+      if (mStszTableEntries != NULL) {
+         delete mStszTableEntries;
+         mStszTableEntries = new ListTableEntries<uint32_t, 1>(1000);
+      }
+
+      if (mStcoTableEntries != NULL) {
+         delete mStcoTableEntries;
+         mStcoTableEntries = new ListTableEntries<uint32_t, 1>(1000);
+      }
+      if (mCo64TableEntries != NULL) {
+         delete mCo64TableEntries;
+         mCo64TableEntries = new ListTableEntries<off64_t, 1>(1000);
+      }
+
+      if (mStscTableEntries != NULL) {
+         delete mStscTableEntries;
+         mStscTableEntries = new ListTableEntries<uint32_t, 3>(1000);
+      }
+      if (mStssTableEntries != NULL) {
+         delete mStssTableEntries;
+         mStssTableEntries = new ListTableEntries<uint32_t, 1>(1000);
+      }
+      if (mSttsTableEntries != NULL) {
+         delete mSttsTableEntries;
+         mSttsTableEntries = new ListTableEntries<uint32_t, 2>(1000);
+      }
+      if (mCttsTableEntries != NULL) {
+         delete mCttsTableEntries;
+         mCttsTableEntries = new ListTableEntries<uint32_t, 2>(1000);
+      }
+      mReachedEOS = false;
+}
+
 void MPEG4Writer::Track::updateTrackSizeEstimate() {
 
     uint32_t stcoBoxCount = (mOwner->use32BitFileOffset()
@@ -1621,13 +1732,31 @@
 void MPEG4Writer::Track::addOneCttsTableEntry(
         size_t sampleCount, int32_t duration) {
 
-    if (mIsAudio) {
+    if (!mIsVideo) {
         return;
     }
     mCttsTableEntries->add(htonl(sampleCount));
     mCttsTableEntries->add(htonl(duration));
 }
 
+status_t MPEG4Writer::setNextFd(int fd) {
+    ALOGV("addNextFd");
+    Mutex::Autolock l(mLock);
+    if (mLooper == NULL) {
+        mReflector = new AHandlerReflector<MPEG4Writer>(this);
+        mLooper = new ALooper;
+        mLooper->registerHandler(mReflector);
+        mLooper->start();
+    }
+
+    if (mNextFd != -1) {
+        // No need to set a new FD yet.
+        return INVALID_OPERATION;
+    }
+    mNextFd = fd;
+    return OK;
+}
+
 void MPEG4Writer::Track::addChunkOffset(off64_t offset) {
     if (mOwner->use32BitFileOffset()) {
         uint32_t value = offset;
@@ -1659,8 +1788,29 @@
     CHECK_GT(mTimeScale, 0);
 }
 
+void MPEG4Writer::onMessageReceived(const sp<AMessage> &msg) {
+    switch (msg->what()) {
+        case kWhatSwitch:
+        {
+            finishCurrentSession();
+            mLock.lock();
+            int fd = mNextFd;
+            mNextFd = -1;
+            mLock.unlock();
+            initInternal(fd);
+            start(mStartMeta.get());
+            mSwitchPending = false;
+            notify(MEDIA_RECORDER_EVENT_INFO, MEDIA_RECORDER_INFO_NEXT_OUTPUT_FILE_STARTED, 0);
+            break;
+        }
+        default:
+        TRESPASS();
+    }
+}
+
 void MPEG4Writer::Track::getCodecSpecificDataFromInputFormatIfPossible() {
     const char *mime;
+
     CHECK(mMeta->findCString(kKeyMIMEType, &mime));
 
     uint32_t type;
@@ -1753,7 +1903,7 @@
 
 void MPEG4Writer::writeChunkToFile(Chunk* chunk) {
     ALOGV("writeChunkToFile: %" PRId64 " from %s track",
-        chunk->mTimeStampUs, chunk->mTrack->isAudio()? "audio": "video");
+        chunk->mTimeStampUs, chunk->mTrack->getTrackType());
 
     int32_t isFirstSample = true;
     while (!chunk->mSamples.empty()) {
@@ -1906,7 +2056,7 @@
     mStartTimeRealUs = startTimeUs;
 
     int32_t rotationDegrees;
-    if (!mIsAudio && params && params->findInt32(kKeyRotation, &rotationDegrees)) {
+    if (mIsVideo && params && params->findInt32(kKeyRotation, &rotationDegrees)) {
         mRotation = rotationDegrees;
     }
 
@@ -1963,8 +2113,8 @@
     return OK;
 }
 
-status_t MPEG4Writer::Track::stop() {
-    ALOGD("%s track stopping", mIsAudio? "Audio": "Video");
+status_t MPEG4Writer::Track::stop(bool stopSource) {
+    ALOGD("%s track stopping. %s source", getTrackType(), stopSource ? "Stop" : "Not Stop");
     if (!mStarted) {
         ALOGE("Stop() called but track is not started");
         return ERROR_END_OF_STREAM;
@@ -1974,16 +2124,17 @@
         return OK;
     }
     mDone = true;
-
-    ALOGD("%s track source stopping", mIsAudio? "Audio": "Video");
-    mSource->stop();
-    ALOGD("%s track source stopped", mIsAudio? "Audio": "Video");
+    if (stopSource) {
+        ALOGD("%s track source stopping", getTrackType());
+        mSource->stop();
+        ALOGD("%s track source stopped", getTrackType());
+    }
 
     void *dummy;
     pthread_join(mThread, &dummy);
     status_t err = static_cast<status_t>(reinterpret_cast<uintptr_t>(dummy));
 
-    ALOGD("%s track stopped", mIsAudio? "Audio": "Video");
+    ALOGD("%s track stopped. %s source", getTrackType(), stopSource ? "Stop" : "Not Stop");
     return err;
 }
 
@@ -2357,6 +2508,17 @@
     }
 }
 
+void MPEG4Writer::Track::dumpTimeStamps() {
+    ALOGE("Dumping %s track's last 10 frames timestamp ", getTrackType());
+    std::string timeStampString;
+    for (std::list<std::pair<int64_t, int64_t>>::iterator num = mTimestampDebugHelper.begin();
+            num != mTimestampDebugHelper.end(); ++num) {
+        timeStampString += "(" + std::to_string(num->first)+
+                "us, " + std::to_string(num->second) + "us) ";
+    }
+    ALOGE("%s", timeStampString.c_str());
+}
+
 status_t MPEG4Writer::Track::threadEntry() {
     int32_t count = 0;
     const int64_t interleaveDurationUs = mOwner->interleaveDuration();
@@ -2381,8 +2543,10 @@
 
     if (mIsAudio) {
         prctl(PR_SET_NAME, (unsigned long)"AudioTrackEncoding", 0, 0, 0);
-    } else {
+    } else if (mIsVideo) {
         prctl(PR_SET_NAME, (unsigned long)"VideoTrackEncoding", 0, 0, 0);
+    } else {
+        prctl(PR_SET_NAME, (unsigned long)"MetadataTrackEncoding", 0, 0, 0);
     }
 
     if (mOwner->isRealTimeRecording()) {
@@ -2393,7 +2557,7 @@
 
     status_t err = OK;
     MediaBuffer *buffer;
-    const char *trackName = mIsAudio ? "Audio" : "Video";
+    const char *trackName = getTrackType();
     while (!mDone && (err = mSource->read(&buffer)) == OK) {
         if (buffer->range_length() == 0) {
             buffer->release();
@@ -2424,19 +2588,17 @@
                 ALOGI("ignoring additional CSD for video track after first frame");
             } else {
                 mMeta = mSource->getFormat(); // get output format after format change
-
+                status_t err;
                 if (mIsAvc) {
-                    status_t err = makeAVCCodecSpecificData(
+                    err = makeAVCCodecSpecificData(
                             (const uint8_t *)buffer->data()
                                 + buffer->range_offset(),
                             buffer->range_length());
-                    CHECK_EQ((status_t)OK, err);
                 } else if (mIsHevc) {
-                    status_t err = makeHEVCCodecSpecificData(
+                    err = makeHEVCCodecSpecificData(
                             (const uint8_t *)buffer->data()
                                 + buffer->range_offset(),
                             buffer->range_length());
-                    CHECK_EQ((status_t)OK, err);
                 } else if (mIsMPEG4) {
                     copyCodecSpecificData((const uint8_t *)buffer->data() + buffer->range_offset(),
                             buffer->range_length());
@@ -2445,11 +2607,27 @@
 
             buffer->release();
             buffer = NULL;
+            if (OK != err) {
+                mSource->stop();
+                mOwner->notify(MEDIA_RECORDER_TRACK_EVENT_ERROR,
+                       mTrackId | MEDIA_RECORDER_TRACK_ERROR_GENERAL, err);
+                break;
+            }
 
             mGotAllCodecSpecificData = true;
             continue;
         }
 
+        // Per-frame metadata sample's size must be smaller than max allowed.
+        if (!mIsVideo && !mIsAudio && buffer->range_length() >= kMaxMetadataSize) {
+            ALOGW("Buffer size is %zu. Maximum metadata buffer size is %lld for %s track",
+                    buffer->range_length(), (long long)kMaxMetadataSize, trackName);
+            buffer->release();
+            mSource->stop();
+            mIsMalformed = true;
+            break;
+        }
+
         ++nActualFrames;
 
         // Make a deep copy of the MediaBuffer and Metadata and release
@@ -2478,13 +2656,20 @@
         updateTrackSizeEstimate();
 
         if (mOwner->exceedsFileSizeLimit()) {
-            ALOGW("Recorded file size exceeds limit %" PRId64 "bytes",
-                    mOwner->mMaxFileSizeLimitBytes);
-            mOwner->notify(MEDIA_RECORDER_EVENT_INFO, MEDIA_RECORDER_INFO_MAX_FILESIZE_REACHED, 0);
+            if (mOwner->switchFd() != OK) {
+                ALOGW("Recorded file size exceeds limit %" PRId64 "bytes",
+                        mOwner->mMaxFileSizeLimitBytes);
+                mSource->stop();
+                mOwner->notify(
+                        MEDIA_RECORDER_EVENT_INFO, MEDIA_RECORDER_INFO_MAX_FILESIZE_REACHED, 0);
+            } else {
+                ALOGV("%s Current recorded file size exceeds limit %" PRId64 "bytes. Switching output",
+                        getTrackType(), mOwner->mMaxFileSizeLimitBytes);
+            }
             copy->release();
-            mSource->stop();
             break;
         }
+
         if (mOwner->exceedsFileDurationLimit()) {
             ALOGW("Recorded file duration exceeds limit %" PRId64 "microseconds",
                     mOwner->mMaxFileDurationLimitUs);
@@ -2494,11 +2679,23 @@
             break;
         }
 
+        if (mOwner->approachingFileSizeLimit()) {
+            mOwner->notifyApproachingLimit();
+        }
 
         int32_t isSync = false;
         meta_data->findInt32(kKeyIsSyncFrame, &isSync);
         CHECK(meta_data->findInt64(kKeyTime, &timestampUs));
 
+        // For video, skip the first several non-key frames until getting the first key frame.
+        if (mIsVideo && !mGotStartKeyFrame && !isSync) {
+            ALOGD("Video skip non-key frame");
+            copy->release();
+            continue;
+        }
+        if (mIsVideo && isSync) {
+            mGotStartKeyFrame = true;
+        }
 ////////////////////////////////////////////////////////////////////////////////
         if (mStszTableEntries->count() == 0) {
             mFirstSampleTimeRealUs = systemTime() / 1000;
@@ -2527,8 +2724,9 @@
             previousPausedDurationUs += pausedDurationUs - lastDurationUs;
             mResumed = false;
         }
-
+        std::pair<int64_t, int64_t> timestampPair;
         timestampUs -= previousPausedDurationUs;
+        timestampPair.first = timestampUs;
         if (WARN_UNLESS(timestampUs >= 0ll, "for %s track", trackName)) {
             copy->release();
             mSource->stop();
@@ -2536,7 +2734,7 @@
             break;
         }
 
-        if (!mIsAudio) {
+        if (mIsVideo) {
             /*
              * Composition time: timestampUs
              * Decoding time: decodingTimeUs
@@ -2550,9 +2748,11 @@
             if (mLastDecodingTimeUs < 0) {
                 decodingTimeUs = std::max((int64_t)0, decodingTimeUs);
             } else {
-                // increase decoding time by at least 1 tick
-                decodingTimeUs = std::max(
-                        mLastDecodingTimeUs + divUp(1000000, mTimeScale), decodingTimeUs);
+                // increase decoding time by at least the larger vaule of 1 tick and
+                // 0.1 milliseconds. This needs to take into account the possible
+                // delta adjustment in DurationTicks in below.
+                decodingTimeUs = std::max(mLastDecodingTimeUs +
+                        std::max(100, divUp(1000000, mTimeScale)), decodingTimeUs);
             }
 
             mLastDecodingTimeUs = decodingTimeUs;
@@ -2661,7 +2861,6 @@
                 timestampUs += deltaUs;
             }
         }
-
         mStszTableEntries->add(htonl(sampleSize));
         if (mStszTableEntries->count() > 2) {
 
@@ -2686,6 +2885,12 @@
         lastDurationUs = timestampUs - lastTimestampUs;
         lastDurationTicks = currDurationTicks;
         lastTimestampUs = timestampUs;
+        timestampPair.second = timestampUs;
+        // Insert the timestamp into the mTimestampDebugHelper
+        if (mTimestampDebugHelper.size() >= kTimestampDebugCount) {
+            mTimestampDebugHelper.pop_front();
+        }
+        mTimestampDebugHelper.push_back(timestampPair);
 
         if (isSync != 0) {
             addOneStssTableEntry(mStszTableEntries->count());
@@ -2741,6 +2946,7 @@
     }
 
     if (isTrackMalFormed()) {
+        dumpTimeStamps();
         err = ERROR_MALFORMED;
     }
 
@@ -2808,7 +3014,7 @@
         return true;
     }
 
-    if (!mIsAudio && mStssTableEntries->count() == 0) {  // no sync frames for video
+    if (mIsVideo && mStssTableEntries->count() == 0) {  // no sync frames for video
         ALOGE("There are no sync frames for video track");
         return true;
     }
@@ -2831,7 +3037,7 @@
 
     mOwner->notify(MEDIA_RECORDER_TRACK_EVENT_INFO,
                     trackNum | MEDIA_RECORDER_TRACK_INFO_TYPE,
-                    mIsAudio? 0: 1);
+                    mIsAudio ? 0: 1);
 
     mOwner->notify(MEDIA_RECORDER_TRACK_EVENT_INFO,
                     trackNum | MEDIA_RECORDER_TRACK_INFO_DURATION_MS,
@@ -2971,11 +3177,11 @@
     return OK;
 }
 
+const char *MPEG4Writer::Track::getTrackType() const {
+    return mIsAudio ? "Audio" : (mIsVideo ? "Video" : "Metadata");
+}
+
 void MPEG4Writer::Track::writeTrackHeader(bool use32BitOffset) {
-
-    ALOGV("%s track time scale: %d",
-        mIsAudio? "Audio": "Video", mTimeScale);
-
     uint32_t now = getMpeg4Time();
     mOwner->beginBox("trak");
         writeTkhdBox(now);
@@ -2985,8 +3191,10 @@
             mOwner->beginBox("minf");
                 if (mIsAudio) {
                     writeSmhdBox();
-                } else {
+                } else if (mIsVideo) {
                     writeVmhdBox();
+                } else {
+                    writeNmhdBox();
                 }
                 writeDinfBox();
                 writeStblBox(use32BitOffset);
@@ -3002,13 +3210,15 @@
     mOwner->writeInt32(1);               // entry count
     if (mIsAudio) {
         writeAudioFourCCBox();
-    } else {
+    } else if (mIsVideo) {
         writeVideoFourCCBox();
+    } else {
+        writeMetadataFourCCBox();
     }
     mOwner->endBox();  // stsd
     writeSttsBox();
-    writeCttsBox();
-    if (!mIsAudio) {
+    if (mIsVideo) {
+        writeCttsBox();
         writeStssBox();
     }
     writeStszBox();
@@ -3017,6 +3227,20 @@
     mOwner->endBox();  // stbl
 }
 
+void MPEG4Writer::Track::writeMetadataFourCCBox() {
+    const char *mime;
+    bool success = mMeta->findCString(kKeyMIMEType, &mime);
+    CHECK(success);
+    const char *fourcc = getFourCCForMime(mime);
+    if (fourcc == NULL) {
+        ALOGE("Unknown mime type '%s'.", mime);
+        TRESPASS();
+    }
+    mOwner->beginBox(fourcc);    // TextMetaDataSampleEntry
+    mOwner->writeCString(mime);  // metadata mime_format
+    mOwner->endBox(); // mett
+}
+
 void MPEG4Writer::Track::writeVideoFourCCBox() {
     const char *mime;
     bool success = mMeta->findCString(kKeyMIMEType, &mime);
@@ -3024,7 +3248,7 @@
     const char *fourcc = getFourCCForMime(mime);
     if (fourcc == NULL) {
         ALOGE("Unknown mime type '%s'.", mime);
-        CHECK(!"should not be here, unknown mime type.");
+        TRESPASS();
     }
 
     mOwner->beginBox(fourcc);        // video format
@@ -3097,7 +3321,7 @@
     const char *fourcc = getFourCCForMime(mime);
     if (fourcc == NULL) {
         ALOGE("Unknown mime type '%s'.", mime);
-        CHECK(!"should not be here, unknown mime type.");
+        TRESPASS();
     }
 
     mOwner->beginBox(fourcc);        // audio format
@@ -3240,13 +3464,19 @@
 
     mOwner->writeCompositionMatrix(mRotation);       // matrix
 
-    if (mIsAudio) {
+    if (!mIsVideo) {
         mOwner->writeInt32(0);
         mOwner->writeInt32(0);
     } else {
         int32_t width, height;
-        bool success = mMeta->findInt32(kKeyWidth, &width);
-        success = success && mMeta->findInt32(kKeyHeight, &height);
+        bool success = mMeta->findInt32(kKeyDisplayWidth, &width);
+        success = success && mMeta->findInt32(kKeyDisplayHeight, &height);
+
+        // Use width/height if display width/height are not present.
+        if (!success) {
+            success = mMeta->findInt32(kKeyWidth, &width);
+            success = success && mMeta->findInt32(kKeyHeight, &height);
+        }
         CHECK(success);
 
         mOwner->writeInt32(width << 16);   // 32-bit fixed-point value
@@ -3273,16 +3503,22 @@
     mOwner->endBox();
 }
 
+void MPEG4Writer::Track::writeNmhdBox() {
+    mOwner->beginBox("nmhd");
+    mOwner->writeInt32(0);           // version=0, flags=0
+    mOwner->endBox();
+}
+
 void MPEG4Writer::Track::writeHdlrBox() {
     mOwner->beginBox("hdlr");
     mOwner->writeInt32(0);             // version=0, flags=0
     mOwner->writeInt32(0);             // component type: should be mhlr
-    mOwner->writeFourcc(mIsAudio ? "soun" : "vide");  // component subtype
+    mOwner->writeFourcc(mIsAudio ? "soun" : (mIsVideo ? "vide" : "meta"));  // component subtype
     mOwner->writeInt32(0);             // reserved
     mOwner->writeInt32(0);             // reserved
     mOwner->writeInt32(0);             // reserved
     // Removing "r" for the name string just makes the string 4 byte aligned
-    mOwner->writeCString(mIsAudio ? "SoundHandle": "VideoHandle");  // name
+    mOwner->writeCString(mIsAudio ? "SoundHandle": (mIsVideo ? "VideoHandle" : "MetadHandle"));
     mOwner->endBox();
 }
 
@@ -3309,7 +3545,12 @@
     // Each character is packed as the difference between its ASCII value and 0x60.
     // For "English", these are 00101, 01110, 00111.
     // XXX: Where is the padding bit located: 0x15C7?
-    mOwner->writeInt16(0);             // language code
+    const char *lang = NULL;
+    int16_t langCode = 0;
+    if (mMeta->findCString(kKeyMediaLanguage, &lang) && lang && strnlen(lang, 3) > 2) {
+        langCode = ((lang[0] & 0x1f) << 10) | ((lang[1] & 0x1f) << 5) | (lang[2] & 0x1f);
+    }
+    mOwner->writeInt16(langCode);      // language code
     mOwner->writeInt16(0);             // predefined
     mOwner->endBox();
 }
@@ -3413,10 +3654,6 @@
 }
 
 void MPEG4Writer::Track::writeCttsBox() {
-    if (mIsAudio) {  // ctts is not for audio
-        return;
-    }
-
     // There is no B frame at all
     if (mMinCttsOffsetTimeUs == mMaxCttsOffsetTimeUs) {
         return;
@@ -3432,11 +3669,19 @@
 
     mOwner->beginBox("ctts");
     mOwner->writeInt32(0);  // version=0, flags=0
-    uint32_t delta = mMinCttsOffsetTimeUs - getStartTimeOffsetScaledTime();
+    int64_t delta = mMinCttsOffsetTimeUs - getStartTimeOffsetScaledTime();
     mCttsTableEntries->adjustEntries([delta](size_t /* ix */, uint32_t (&value)[2]) {
         // entries are <count, ctts> pairs; adjust only ctts
         uint32_t duration = htonl(value[1]); // back to host byte order
-        value[1] = htonl(duration - delta);
+        // Prevent overflow and underflow
+        if (delta > duration) {
+            duration = 0;
+        } else if (delta < 0 && UINT32_MAX + delta < duration) {
+            duration = UINT32_MAX;
+        } else {
+            duration -= delta;
+        }
+        value[1] = htonl(duration);
     });
     mCttsTableEntries->write(mOwner);
     mOwner->endBox();  // ctts
diff --git a/media/libstagefright/MediaCodec.cpp b/media/libstagefright/MediaCodec.cpp
index b088775..8728b6f 100644
--- a/media/libstagefright/MediaCodec.cpp
+++ b/media/libstagefright/MediaCodec.cpp
@@ -19,8 +19,11 @@
 #include <inttypes.h>
 
 #include "include/avc_utils.h"
+#include "include/SecureBuffer.h"
+#include "include/SharedMemoryBuffer.h"
 #include "include/SoftwareRenderer.h"
 
+#include <android/media/IDescrambler.h>
 #include <binder/IMemory.h>
 #include <binder/IPCThreadState.h>
 #include <binder/IServiceManager.h>
@@ -30,10 +33,13 @@
 #include <media/ICrypto.h>
 #include <media/IOMX.h>
 #include <media/IResourceManagerService.h>
+#include <media/MediaCodecBuffer.h>
+#include <media/MediaAnalyticsItem.h>
 #include <media/stagefright/foundation/ABuffer.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/AMessage.h>
 #include <media/stagefright/foundation/AString.h>
+#include <media/stagefright/foundation/AUtils.h>
 #include <media/stagefright/foundation/hexdump.h>
 #include <media/stagefright/ACodec.h>
 #include <media/stagefright/BufferProducerWrapper.h>
@@ -53,6 +59,16 @@
 
 namespace android {
 
+// key for media statistics
+static const char *kCodecKeyName = "codec";
+// attrs for media statistics
+static const char *kCodecCodec = "codec";               /* e.g. OMX.google.aac.decoder */
+static const char *kCodecMime = "mime";                 /* e.g. audio/mime */
+static const char *kCodecMode = "mode";                 /* audio, video */
+static const char *kCodecSecure = "secure";             /* 0, 1 */
+
+
+
 static int64_t getId(const sp<IResourceManagerClient> &client) {
     return (int64_t) client.get();
 }
@@ -63,6 +79,9 @@
 
 static const int kMaxRetry = 2;
 static const int kMaxReclaimWaitTimeInUs = 500000;  // 0.5s
+static const int kNumBuffersAlign = 16;
+
+////////////////////////////////////////////////////////////////////////////////
 
 struct ResourceManagerClient : public BnResourceManagerClient {
     explicit ResourceManagerClient(MediaCodec* codec) : mMediaCodec(codec) {}
@@ -168,10 +187,221 @@
     return mService->reclaimResource(mPid, resources);
 }
 
+////////////////////////////////////////////////////////////////////////////////
+
+MediaCodec::BufferInfo::BufferInfo() : mOwnedByClient(false) {}
+
+////////////////////////////////////////////////////////////////////////////////
+
+namespace {
+
+enum {
+    kWhatFillThisBuffer      = 'fill',
+    kWhatDrainThisBuffer     = 'drai',
+    kWhatEOS                 = 'eos ',
+    kWhatStartCompleted      = 'Scom',
+    kWhatStopCompleted       = 'scom',
+    kWhatReleaseCompleted    = 'rcom',
+    kWhatFlushCompleted      = 'fcom',
+    kWhatError               = 'erro',
+    kWhatComponentAllocated  = 'cAll',
+    kWhatComponentConfigured = 'cCon',
+    kWhatInputSurfaceCreated = 'isfc',
+    kWhatInputSurfaceAccepted = 'isfa',
+    kWhatSignaledInputEOS    = 'seos',
+    kWhatOutputFramesRendered = 'outR',
+    kWhatOutputBuffersChanged = 'outC',
+};
+
+class BufferCallback : public CodecBase::BufferCallback {
+public:
+    explicit BufferCallback(const sp<AMessage> &notify);
+    virtual ~BufferCallback() = default;
+
+    virtual void onInputBufferAvailable(
+            size_t index, const sp<MediaCodecBuffer> &buffer) override;
+    virtual void onOutputBufferAvailable(
+            size_t index, const sp<MediaCodecBuffer> &buffer) override;
+private:
+    const sp<AMessage> mNotify;
+};
+
+BufferCallback::BufferCallback(const sp<AMessage> &notify)
+    : mNotify(notify) {}
+
+void BufferCallback::onInputBufferAvailable(
+        size_t index, const sp<MediaCodecBuffer> &buffer) {
+    sp<AMessage> notify(mNotify->dup());
+    notify->setInt32("what", kWhatFillThisBuffer);
+    notify->setSize("index", index);
+    notify->setObject("buffer", buffer);
+    notify->post();
+}
+
+void BufferCallback::onOutputBufferAvailable(
+        size_t index, const sp<MediaCodecBuffer> &buffer) {
+    sp<AMessage> notify(mNotify->dup());
+    notify->setInt32("what", kWhatDrainThisBuffer);
+    notify->setSize("index", index);
+    notify->setObject("buffer", buffer);
+    notify->post();
+}
+
+class CodecCallback : public CodecBase::CodecCallback {
+public:
+    explicit CodecCallback(const sp<AMessage> &notify);
+    virtual ~CodecCallback() = default;
+
+    virtual void onEos(status_t err) override;
+    virtual void onStartCompleted() override;
+    virtual void onStopCompleted() override;
+    virtual void onReleaseCompleted() override;
+    virtual void onFlushCompleted() override;
+    virtual void onError(status_t err, enum ActionCode actionCode) override;
+    virtual void onComponentAllocated(const char *componentName) override;
+    virtual void onComponentConfigured(
+            const sp<AMessage> &inputFormat, const sp<AMessage> &outputFormat) override;
+    virtual void onInputSurfaceCreated(
+            const sp<AMessage> &inputFormat,
+            const sp<AMessage> &outputFormat,
+            const sp<BufferProducerWrapper> &inputSurface) override;
+    virtual void onInputSurfaceCreationFailed(status_t err) override;
+    virtual void onInputSurfaceAccepted(
+            const sp<AMessage> &inputFormat,
+            const sp<AMessage> &outputFormat) override;
+    virtual void onInputSurfaceDeclined(status_t err) override;
+    virtual void onSignaledInputEOS(status_t err) override;
+    virtual void onOutputFramesRendered(const std::list<FrameRenderTracker::Info> &done) override;
+    virtual void onOutputBuffersChanged() override;
+private:
+    const sp<AMessage> mNotify;
+};
+
+CodecCallback::CodecCallback(const sp<AMessage> &notify) : mNotify(notify) {}
+
+void CodecCallback::onEos(status_t err) {
+    sp<AMessage> notify(mNotify->dup());
+    notify->setInt32("what", kWhatEOS);
+    notify->setInt32("err", err);
+    notify->post();
+}
+
+void CodecCallback::onStartCompleted() {
+    sp<AMessage> notify(mNotify->dup());
+    notify->setInt32("what", kWhatStartCompleted);
+    notify->post();
+}
+
+void CodecCallback::onStopCompleted() {
+    sp<AMessage> notify(mNotify->dup());
+    notify->setInt32("what", kWhatStopCompleted);
+    notify->post();
+}
+
+void CodecCallback::onReleaseCompleted() {
+    sp<AMessage> notify(mNotify->dup());
+    notify->setInt32("what", kWhatReleaseCompleted);
+    notify->post();
+}
+
+void CodecCallback::onFlushCompleted() {
+    sp<AMessage> notify(mNotify->dup());
+    notify->setInt32("what", kWhatFlushCompleted);
+    notify->post();
+}
+
+void CodecCallback::onError(status_t err, enum ActionCode actionCode) {
+    sp<AMessage> notify(mNotify->dup());
+    notify->setInt32("what", kWhatError);
+    notify->setInt32("err", err);
+    notify->setInt32("actionCode", actionCode);
+    notify->post();
+}
+
+void CodecCallback::onComponentAllocated(const char *componentName) {
+    sp<AMessage> notify(mNotify->dup());
+    notify->setInt32("what", kWhatComponentAllocated);
+    notify->setString("componentName", componentName);
+    notify->post();
+}
+
+void CodecCallback::onComponentConfigured(
+        const sp<AMessage> &inputFormat, const sp<AMessage> &outputFormat) {
+    sp<AMessage> notify(mNotify->dup());
+    notify->setInt32("what", kWhatComponentConfigured);
+    notify->setMessage("input-format", inputFormat);
+    notify->setMessage("output-format", outputFormat);
+    notify->post();
+}
+
+void CodecCallback::onInputSurfaceCreated(
+        const sp<AMessage> &inputFormat,
+        const sp<AMessage> &outputFormat,
+        const sp<BufferProducerWrapper> &inputSurface) {
+    sp<AMessage> notify(mNotify->dup());
+    notify->setInt32("what", kWhatInputSurfaceCreated);
+    notify->setMessage("input-format", inputFormat);
+    notify->setMessage("output-format", outputFormat);
+    notify->setObject("input-surface", inputSurface);
+    notify->post();
+}
+
+void CodecCallback::onInputSurfaceCreationFailed(status_t err) {
+    sp<AMessage> notify(mNotify->dup());
+    notify->setInt32("what", kWhatInputSurfaceCreated);
+    notify->setInt32("err", err);
+    notify->post();
+}
+
+void CodecCallback::onInputSurfaceAccepted(
+        const sp<AMessage> &inputFormat,
+        const sp<AMessage> &outputFormat) {
+    sp<AMessage> notify(mNotify->dup());
+    notify->setInt32("what", kWhatInputSurfaceAccepted);
+    notify->setMessage("input-format", inputFormat);
+    notify->setMessage("output-format", outputFormat);
+    notify->post();
+}
+
+void CodecCallback::onInputSurfaceDeclined(status_t err) {
+    sp<AMessage> notify(mNotify->dup());
+    notify->setInt32("what", kWhatInputSurfaceAccepted);
+    notify->setInt32("err", err);
+    notify->post();
+}
+
+void CodecCallback::onSignaledInputEOS(status_t err) {
+    sp<AMessage> notify(mNotify->dup());
+    notify->setInt32("what", kWhatSignaledInputEOS);
+    if (err != OK) {
+        notify->setInt32("err", err);
+    }
+    notify->post();
+}
+
+void CodecCallback::onOutputFramesRendered(const std::list<FrameRenderTracker::Info> &done) {
+    sp<AMessage> notify(mNotify->dup());
+    notify->setInt32("what", kWhatOutputFramesRendered);
+    if (MediaCodec::CreateFramesRenderedMessage(done, notify)) {
+        notify->post();
+    }
+}
+
+void CodecCallback::onOutputBuffersChanged() {
+    sp<AMessage> notify(mNotify->dup());
+    notify->setInt32("what", kWhatOutputBuffersChanged);
+    notify->post();
+}
+
+}  // namespace
+
+////////////////////////////////////////////////////////////////////////////////
+
 // static
 sp<MediaCodec> MediaCodec::CreateByType(
-        const sp<ALooper> &looper, const AString &mime, bool encoder, status_t *err, pid_t pid) {
-    sp<MediaCodec> codec = new MediaCodec(looper, pid);
+        const sp<ALooper> &looper, const AString &mime, bool encoder, status_t *err, pid_t pid,
+        uid_t uid) {
+    sp<MediaCodec> codec = new MediaCodec(looper, pid, uid);
 
     const status_t ret = codec->init(mime, true /* nameIsType */, encoder);
     if (err != NULL) {
@@ -182,8 +412,8 @@
 
 // static
 sp<MediaCodec> MediaCodec::CreateByComponentName(
-        const sp<ALooper> &looper, const AString &name, status_t *err, pid_t pid) {
-    sp<MediaCodec> codec = new MediaCodec(looper, pid);
+        const sp<ALooper> &looper, const AString &name, status_t *err, pid_t pid, uid_t uid) {
+    sp<MediaCodec> codec = new MediaCodec(looper, pid, uid);
 
     const status_t ret = codec->init(name, false /* nameIsType */, false /* encoder */);
     if (err != NULL) {
@@ -211,53 +441,27 @@
 // static
 sp<PersistentSurface> MediaCodec::CreatePersistentInputSurface() {
     OMXClient client;
-    CHECK_EQ(client.connect(), (status_t)OK);
+    if (client.connect() != OK) {
+        ALOGE("Failed to connect to OMX to create persistent input surface.");
+        return NULL;
+    }
+
     sp<IOMX> omx = client.interface();
 
-    const sp<IMediaCodecList> mediaCodecList = MediaCodecList::getInstance();
-    if (mediaCodecList == NULL) {
-        ALOGE("Failed to obtain MediaCodecList!");
-        return NULL; // if called from Java should raise IOException
-    }
-
-    AString tmp;
-    sp<AMessage> globalSettings = mediaCodecList->getGlobalSettings();
-    if (globalSettings == NULL || !globalSettings->findString(
-            kMaxEncoderInputBuffers, &tmp)) {
-        ALOGE("Failed to get encoder input buffer count!");
-        return NULL;
-    }
-
-    int32_t bufferCount = strtol(tmp.c_str(), NULL, 10);
-    if (bufferCount <= 0
-            || bufferCount > BufferQueue::MAX_MAX_ACQUIRED_BUFFERS) {
-        ALOGE("Encoder input buffer count is invalid!");
-        return NULL;
-    }
-
     sp<IGraphicBufferProducer> bufferProducer;
-    sp<IGraphicBufferConsumer> bufferConsumer;
+    sp<IGraphicBufferSource> bufferSource;
 
-    status_t err = omx->createPersistentInputSurface(
-            &bufferProducer, &bufferConsumer);
+    status_t err = omx->createInputSurface(&bufferProducer, &bufferSource);
 
     if (err != OK) {
         ALOGE("Failed to create persistent input surface.");
         return NULL;
     }
 
-    err = bufferConsumer->setMaxAcquiredBufferCount(bufferCount);
-
-    if (err != NO_ERROR) {
-        ALOGE("Unable to set BQ max acquired buffer count to %u: %d",
-                bufferCount, err);
-        return NULL;
-    }
-
-    return new PersistentSurface(bufferProducer, bufferConsumer);
+    return new PersistentSurface(bufferProducer, bufferSource);
 }
 
-MediaCodec::MediaCodec(const sp<ALooper> &looper, pid_t pid)
+MediaCodec::MediaCodec(const sp<ALooper> &looper, pid_t pid, uid_t uid)
     : mState(UNINITIALIZED),
       mReleasedByResourceManager(false),
       mLooper(looper),
@@ -279,11 +483,32 @@
       mDequeueOutputReplyID(0),
       mHaveInputSurface(false),
       mHavePendingInputBuffers(false) {
+    if (uid == kNoUid) {
+        mUid = IPCThreadState::self()->getCallingUid();
+    } else {
+        mUid = uid;
+    }
+    // set up our new record, get a sessionID, put it into the in-progress list
+    mAnalyticsItem = new MediaAnalyticsItem(kCodecKeyName);
+    if (mAnalyticsItem != NULL) {
+        (void) mAnalyticsItem->generateSessionID();
+        // don't record it yet; only at the end, when we have decided that we have
+        // data worth writing (e.g. .count() > 0)
+    }
 }
 
 MediaCodec::~MediaCodec() {
     CHECK_EQ(mState, UNINITIALIZED);
     mResourceManagerService->removeResource(getId(mResourceManagerClient));
+
+    if (mAnalyticsItem != NULL ) {
+        if (mAnalyticsItem->count() > 0) {
+            mAnalyticsItem->setFinalized(true);
+            mAnalyticsItem->selfrecord();
+        }
+        delete mAnalyticsItem;
+        mAnalyticsItem = NULL;
+    }
 }
 
 // static
@@ -387,7 +612,13 @@
 
     mLooper->registerHandler(this);
 
-    mCodec->setNotificationMessage(new AMessage(kWhatCodecNotify, this));
+    mCodec->setCallback(
+            std::unique_ptr<CodecBase::CodecCallback>(
+                    new CodecCallback(new AMessage(kWhatCodecNotify, this))));
+    mBufferChannel = mCodec->getBufferChannel();
+    mBufferChannel->setCallback(
+            std::unique_ptr<CodecBase::BufferCallback>(
+                    new BufferCallback(new AMessage(kWhatCodecNotify, this))));
 
     sp<AMessage> msg = new AMessage(kWhatInit, this);
     msg->setString("name", name);
@@ -397,6 +628,19 @@
         msg->setInt32("encoder", encoder);
     }
 
+    if (mAnalyticsItem != NULL) {
+        if (nameIsType) {
+            // name is the mime type
+            mAnalyticsItem->setCString(kCodecMime, name.c_str());
+        } else {
+            mAnalyticsItem->setCString(kCodecCodec, name.c_str());
+        }
+        mAnalyticsItem->setCString(kCodecMode, mIsVideo ? "video" : "audio");
+        //mAnalyticsItem->setInt32("type", nameIsType);
+        if (nameIsType)
+            mAnalyticsItem->setInt32("encoder", encoder);
+    }
+
     status_t err;
     Vector<MediaResource> resources;
     MediaResource::Type type =
@@ -437,8 +681,17 @@
 
 status_t MediaCodec::configure(
         const sp<AMessage> &format,
+        const sp<Surface> &nativeWindow,
+        const sp<ICrypto> &crypto,
+        uint32_t flags) {
+    return configure(format, nativeWindow, crypto, NULL, flags);
+}
+
+status_t MediaCodec::configure(
+        const sp<AMessage> &format,
         const sp<Surface> &surface,
         const sp<ICrypto> &crypto,
+        const sp<IDescrambler> &descrambler,
         uint32_t flags) {
     sp<AMessage> msg = new AMessage(kWhatConfigure, this);
 
@@ -449,6 +702,12 @@
             mRotationDegrees = 0;
         }
 
+        if (mAnalyticsItem != NULL) {
+            mAnalyticsItem->setInt32("width", mVideoWidth);
+            mAnalyticsItem->setInt32("height", mVideoHeight);
+            mAnalyticsItem->setInt32("rotation", mRotationDegrees);
+        }
+
         // Prevent possible integer overflow in downstream code.
         if (mInitIsEncoder
                 && (uint64_t)mVideoWidth * mVideoHeight > (uint64_t)INT32_MAX / 4) {
@@ -461,8 +720,16 @@
     msg->setInt32("flags", flags);
     msg->setObject("surface", surface);
 
-    if (crypto != NULL) {
-        msg->setPointer("crypto", crypto.get());
+    if (crypto != NULL || descrambler != NULL) {
+        if (crypto != NULL) {
+            msg->setPointer("crypto", crypto.get());
+        } else {
+            msg->setPointer("descrambler", descrambler.get());
+        }
+        if (mAnalyticsItem != NULL) {
+            // XXX: save indication that it's crypto in some way...
+            mAnalyticsItem->setInt32("crypto", 1);
+        }
     }
 
     // save msg for reset
@@ -505,6 +772,51 @@
     return err;
 }
 
+status_t MediaCodec::releaseCrypto()
+{
+    ALOGV("releaseCrypto");
+
+    sp<AMessage> msg = new AMessage(kWhatDrmReleaseCrypto, this);
+
+    sp<AMessage> response;
+    status_t status = msg->postAndAwaitResponse(&response);
+
+    if (status == OK && response != NULL) {
+        CHECK(response->findInt32("status", &status));
+        ALOGV("releaseCrypto ret: %d ", status);
+    }
+    else {
+        ALOGE("releaseCrypto err: %d", status);
+    }
+
+    return status;
+}
+
+void MediaCodec::onReleaseCrypto(const sp<AMessage>& msg)
+{
+    status_t status = INVALID_OPERATION;
+    if (mCrypto != NULL) {
+        ALOGV("onReleaseCrypto: mCrypto: %p (%d)", mCrypto.get(), mCrypto->getStrongCount());
+        mBufferChannel->setCrypto(NULL);
+        // TODO change to ALOGV
+        ALOGD("onReleaseCrypto: [before clear]  mCrypto: %p (%d)",
+                mCrypto.get(), mCrypto->getStrongCount());
+        mCrypto.clear();
+
+        status = OK;
+    }
+    else {
+        ALOGW("onReleaseCrypto: No mCrypto. err: %d", status);
+    }
+
+    sp<AMessage> response = new AMessage;
+    response->setInt32("status", status);
+
+    sp<AReplyToken> replyID;
+    CHECK(msg->senderAwaitsResponse(&replyID));
+    response->postReply(replyID);
+}
+
 status_t MediaCodec::setInputSurface(
         const sp<PersistentSurface> &surface) {
     sp<AMessage> msg = new AMessage(kWhatSetInputSurface, this);
@@ -614,14 +926,9 @@
 }
 
 bool MediaCodec::hasPendingBuffer(int portIndex) {
-    const Vector<BufferInfo> &buffers = mPortBuffers[portIndex];
-    for (size_t i = 0; i < buffers.size(); ++i) {
-        const BufferInfo &info = buffers.itemAt(i);
-        if (info.mOwnedByClient) {
-            return true;
-        }
-    }
-    return false;
+    return std::any_of(
+            mPortBuffers[portIndex].begin(), mPortBuffers[portIndex].end(),
+            [](const BufferInfo &info) { return info.mOwnedByClient; });
 }
 
 bool MediaCodec::hasPendingBuffer() {
@@ -860,17 +1167,22 @@
     return OK;
 }
 
-status_t MediaCodec::getWidevineLegacyBuffers(Vector<sp<ABuffer> > *buffers) const {
-    sp<AMessage> msg = new AMessage(kWhatGetBuffers, this);
-    msg->setInt32("portIndex", kPortIndexInput);
-    msg->setPointer("buffers", buffers);
-    msg->setInt32("widevine", true);
+status_t MediaCodec::getMetrics(Parcel *reply) {
 
-    sp<AMessage> response;
-    return PostAndAwaitResponse(msg, &response);
+    // shouldn't happen, but be safe
+    if (mAnalyticsItem == NULL) {
+        return UNKNOWN_ERROR;
+    }
+
+    // XXX: go get current values for whatever in-flight data we want
+
+    // send it back to the caller.
+    mAnalyticsItem->writeToParcel(reply);
+
+    return OK;
 }
 
-status_t MediaCodec::getInputBuffers(Vector<sp<ABuffer> > *buffers) const {
+status_t MediaCodec::getInputBuffers(Vector<sp<MediaCodecBuffer> > *buffers) const {
     sp<AMessage> msg = new AMessage(kWhatGetBuffers, this);
     msg->setInt32("portIndex", kPortIndexInput);
     msg->setPointer("buffers", buffers);
@@ -879,7 +1191,7 @@
     return PostAndAwaitResponse(msg, &response);
 }
 
-status_t MediaCodec::getOutputBuffers(Vector<sp<ABuffer> > *buffers) const {
+status_t MediaCodec::getOutputBuffers(Vector<sp<MediaCodecBuffer> > *buffers) const {
     sp<AMessage> msg = new AMessage(kWhatGetBuffers, this);
     msg->setInt32("portIndex", kPortIndexOutput);
     msg->setPointer("buffers", buffers);
@@ -888,17 +1200,17 @@
     return PostAndAwaitResponse(msg, &response);
 }
 
-status_t MediaCodec::getOutputBuffer(size_t index, sp<ABuffer> *buffer) {
+status_t MediaCodec::getOutputBuffer(size_t index, sp<MediaCodecBuffer> *buffer) {
     sp<AMessage> format;
     return getBufferAndFormat(kPortIndexOutput, index, buffer, &format);
 }
 
 status_t MediaCodec::getOutputFormat(size_t index, sp<AMessage> *format) {
-    sp<ABuffer> buffer;
+    sp<MediaCodecBuffer> buffer;
     return getBufferAndFormat(kPortIndexOutput, index, &buffer, format);
 }
 
-status_t MediaCodec::getInputBuffer(size_t index, sp<ABuffer> *buffer) {
+status_t MediaCodec::getInputBuffer(size_t index, sp<MediaCodecBuffer> *buffer) {
     sp<AMessage> format;
     return getBufferAndFormat(kPortIndexInput, index, buffer, &format);
 }
@@ -909,7 +1221,7 @@
 
 status_t MediaCodec::getBufferAndFormat(
         size_t portIndex, size_t index,
-        sp<ABuffer> *buffer, sp<AMessage> *format) {
+        sp<MediaCodecBuffer> *buffer, sp<AMessage> *format) {
     // use mutex instead of a context switch
     if (mReleasedByResourceManager) {
         ALOGE("getBufferAndFormat - resource already released");
@@ -917,7 +1229,7 @@
     }
 
     if (buffer == NULL) {
-        ALOGE("getBufferAndFormat - null ABuffer");
+        ALOGE("getBufferAndFormat - null MediaCodecBuffer");
         return INVALID_OPERATION;
     }
 
@@ -938,26 +1250,22 @@
     // we also don't want mOwnedByClient to change during this
     Mutex::Autolock al(mBufferLock);
 
-    Vector<BufferInfo> *buffers = &mPortBuffers[portIndex];
-    if (index >= buffers->size()) {
+    std::vector<BufferInfo> &buffers = mPortBuffers[portIndex];
+    if (index >= buffers.size()) {
         ALOGE("getBufferAndFormat - trying to get buffer with "
-              "bad index (index=%zu buffer_size=%zu)", index, buffers->size());
+              "bad index (index=%zu buffer_size=%zu)", index, buffers.size());
         return INVALID_OPERATION;
     }
 
-    const BufferInfo &info = buffers->itemAt(index);
+    const BufferInfo &info = buffers[index];
     if (!info.mOwnedByClient) {
         ALOGE("getBufferAndFormat - invalid operation "
               "(the index %zu is not owned by client)", index);
         return INVALID_OPERATION;
     }
 
-    // by the time buffers array is initialized, crypto is set
-    *buffer = (portIndex == kPortIndexInput && mCrypto != NULL) ?
-                  info.mEncryptedData :
-                  info.mData;
-
-    *format = info.mFormat;
+    *buffer = info.mData;
+    *format = info.mData->format();
 
     return OK;
 }
@@ -1046,8 +1354,8 @@
             return false;
         }
 
-        const sp<ABuffer> &buffer =
-            mPortBuffers[kPortIndexOutput].itemAt(index).mData;
+        const sp<MediaCodecBuffer> &buffer =
+            mPortBuffers[kPortIndexOutput][index].mData;
 
         response->setSize("index", index);
         response->setSize("offset", buffer->offset());
@@ -1058,19 +1366,8 @@
 
         response->setInt64("timeUs", timeUs);
 
-        int32_t omxFlags;
-        CHECK(buffer->meta()->findInt32("omxFlags", &omxFlags));
-
-        uint32_t flags = 0;
-        if (omxFlags & OMX_BUFFERFLAG_SYNCFRAME) {
-            flags |= BUFFER_FLAG_SYNCFRAME;
-        }
-        if (omxFlags & OMX_BUFFERFLAG_CODECCONFIG) {
-            flags |= BUFFER_FLAG_CODECCONFIG;
-        }
-        if (omxFlags & OMX_BUFFERFLAG_EOS) {
-            flags |= BUFFER_FLAG_EOS;
-        }
+        int32_t flags;
+        CHECK(buffer->meta()->findInt32("flags", &flags));
 
         response->setInt32("flags", flags);
         response->postReply(replyID);
@@ -1087,7 +1384,7 @@
             CHECK(msg->findInt32("what", &what));
 
             switch (what) {
-                case CodecBase::kWhatError:
+                case kWhatError:
                 {
                     int32_t err, actionCode;
                     CHECK(msg->findInt32("err", &err));
@@ -1123,14 +1420,16 @@
                             break;
                         }
 
-                        case STOPPING:
                         case RELEASING:
                         {
                             // Ignore the error, assuming we'll still get
-                            // the shutdown complete notification.
-
+                            // the shutdown complete notification. If we
+                            // don't, we'll timeout and force release.
                             sendErrorResponse = false;
-
+                        }
+                        // fall-thru
+                        case STOPPING:
+                        {
                             if (mFlags & kFlagSawMediaServerDie) {
                                 // MediaServer died, there definitely won't
                                 // be a shutdown complete notification after
@@ -1144,6 +1443,7 @@
                                     mComponentName.clear();
                                 }
                                 (new AMessage)->postReply(mReplyID);
+                                sendErrorResponse = false;
                             }
                             break;
                         }
@@ -1219,7 +1519,7 @@
                     break;
                 }
 
-                case CodecBase::kWhatComponentAllocated:
+                case kWhatComponentAllocated:
                 {
                     CHECK_EQ(mState, INITIALIZING);
                     setState(INITIALIZED);
@@ -1227,6 +1527,10 @@
 
                     CHECK(msg->findString("componentName", &mComponentName));
 
+                    if (mComponentName.c_str()) {
+                        mAnalyticsItem->setCString(kCodecCodec, mComponentName.c_str());
+                    }
+
                     if (mComponentName.startsWith("OMX.google.")) {
                         mFlags |= kFlagUsesSoftwareRenderer;
                     } else {
@@ -1237,9 +1541,11 @@
                     if (mComponentName.endsWith(".secure")) {
                         mFlags |= kFlagIsSecure;
                         resourceType = MediaResource::kSecureCodec;
+                        mAnalyticsItem->setInt32(kCodecSecure, 1);
                     } else {
                         mFlags &= ~kFlagIsSecure;
                         resourceType = MediaResource::kNonSecureCodec;
+                        mAnalyticsItem->setInt32(kCodecSecure, 0);
                     }
 
                     if (mIsVideo) {
@@ -1251,7 +1557,7 @@
                     break;
                 }
 
-                case CodecBase::kWhatComponentConfigured:
+                case kWhatComponentConfigured:
                 {
                     if (mState == UNINITIALIZED || mState == INITIALIZED) {
                         // In case a kWhatError message came in and replied with error,
@@ -1280,7 +1586,7 @@
                     break;
                 }
 
-                case CodecBase::kWhatInputSurfaceCreated:
+                case kWhatInputSurfaceCreated:
                 {
                     // response to initiateCreateInputSurface()
                     status_t err = NO_ERROR;
@@ -1304,12 +1610,14 @@
                     break;
                 }
 
-                case CodecBase::kWhatInputSurfaceAccepted:
+                case kWhatInputSurfaceAccepted:
                 {
                     // response to initiateSetInputSurface()
                     status_t err = NO_ERROR;
                     sp<AMessage> response = new AMessage();
                     if (!msg->findInt32("err", &err)) {
+                        CHECK(msg->findMessage("input-format", &mInputFormat));
+                        CHECK(msg->findMessage("output-format", &mOutputFormat));
                         mHaveInputSurface = true;
                     } else {
                         response->setInt32("err", err);
@@ -1318,7 +1626,7 @@
                     break;
                 }
 
-                case CodecBase::kWhatSignaledInputEOS:
+                case kWhatSignaledInputEOS:
                 {
                     // response to signalEndOfInputStream()
                     sp<AMessage> response = new AMessage;
@@ -1330,138 +1638,28 @@
                     break;
                 }
 
-
-                case CodecBase::kWhatBuffersAllocated:
+                case kWhatStartCompleted:
                 {
-                    Mutex::Autolock al(mBufferLock);
-                    int32_t portIndex;
-                    CHECK(msg->findInt32("portIndex", &portIndex));
-
-                    ALOGV("%s buffers allocated",
-                          portIndex == kPortIndexInput ? "input" : "output");
-
-                    CHECK(portIndex == kPortIndexInput
-                            || portIndex == kPortIndexOutput);
-
-                    mPortBuffers[portIndex].clear();
-
-                    Vector<BufferInfo> *buffers = &mPortBuffers[portIndex];
-
-                    sp<RefBase> obj;
-                    CHECK(msg->findObject("portDesc", &obj));
-
-                    sp<CodecBase::PortDescription> portDesc =
-                        static_cast<CodecBase::PortDescription *>(obj.get());
-
-                    size_t numBuffers = portDesc->countBuffers();
-
-                    size_t totalSize = 0;
-                    for (size_t i = 0; i < numBuffers; ++i) {
-                        if (portIndex == kPortIndexInput && mCrypto != NULL) {
-                            totalSize += portDesc->bufferAt(i)->capacity();
-                        }
+                    CHECK_EQ(mState, STARTING);
+                    if (mIsVideo) {
+                        addResource(
+                                MediaResource::kGraphicMemory,
+                                MediaResource::kUnspecifiedSubType,
+                                getGraphicBufferSize());
                     }
-
-                    if (totalSize) {
-                        mDealer = new MemoryDealer(totalSize, "MediaCodec");
-                    }
-
-                    for (size_t i = 0; i < numBuffers; ++i) {
-                        BufferInfo info;
-                        info.mBufferID = portDesc->bufferIDAt(i);
-                        info.mOwnedByClient = false;
-                        info.mData = portDesc->bufferAt(i);
-                        info.mNativeHandle = portDesc->handleAt(i);
-                        info.mMemRef = portDesc->memRefAt(i);
-
-                        if (portIndex == kPortIndexInput && mCrypto != NULL) {
-                            sp<IMemory> mem = mDealer->allocate(info.mData->capacity());
-                            info.mEncryptedData =
-                                new ABuffer(mem->pointer(), info.mData->capacity());
-                            info.mSharedEncryptedBuffer = mem;
-                        }
-
-                        buffers->push_back(info);
-                    }
-
-                    if (portIndex == kPortIndexOutput) {
-                        if (mState == STARTING) {
-                            // We're always allocating output buffers after
-                            // allocating input buffers, so this is a good
-                            // indication that now all buffers are allocated.
-                            if (mIsVideo) {
-                                addResource(
-                                        MediaResource::kGraphicMemory,
-                                        MediaResource::kUnspecifiedSubType,
-                                        getGraphicBufferSize());
-                            }
-                            setState(STARTED);
-                            (new AMessage)->postReply(mReplyID);
-                        } else {
-                            mFlags |= kFlagOutputBuffersChanged;
-                            postActivityNotificationIfPossible();
-                        }
-                    }
+                    setState(STARTED);
+                    (new AMessage)->postReply(mReplyID);
                     break;
                 }
 
-                case CodecBase::kWhatOutputFormatChanged:
+                case kWhatOutputBuffersChanged:
                 {
-                    CHECK(msg->findMessage("format", &mOutputFormat));
-
-                    ALOGV("[%s] output format changed to: %s",
-                            mComponentName.c_str(), mOutputFormat->debugString(4).c_str());
-
-                    if (mSoftRenderer == NULL &&
-                            mSurface != NULL &&
-                            (mFlags & kFlagUsesSoftwareRenderer)) {
-                        AString mime;
-                        CHECK(mOutputFormat->findString("mime", &mime));
-
-                        // TODO: propagate color aspects to software renderer to allow better
-                        // color conversion to RGB. For now, just mark dataspace for YUV
-                        // rendering.
-                        int32_t dataSpace;
-                        if (mOutputFormat->findInt32("android._dataspace", &dataSpace)) {
-                            ALOGD("[%s] setting dataspace on output surface to #%x",
-                                    mComponentName.c_str(), dataSpace);
-                            int err = native_window_set_buffers_data_space(
-                                    mSurface.get(), (android_dataspace)dataSpace);
-                            ALOGW_IF(err != 0, "failed to set dataspace on surface (%d)", err);
-                        }
-
-                        if (mime.startsWithIgnoreCase("video/")) {
-                            mSoftRenderer = new SoftwareRenderer(mSurface, mRotationDegrees);
-                        }
-                    }
-
-                    if (mFlags & kFlagIsEncoder) {
-                        // Before we announce the format change we should
-                        // collect codec specific data and amend the output
-                        // format as necessary.
-                        mFlags |= kFlagGatherCodecSpecificData;
-                    } else if (mFlags & kFlagIsAsync) {
-                        onOutputFormatChanged();
-                    } else {
-                        mFlags |= kFlagOutputFormatChanged;
-                        postActivityNotificationIfPossible();
-                    }
-
-                    // Notify mCrypto of video resolution changes
-                    if (mCrypto != NULL) {
-                        int32_t left, top, right, bottom, width, height;
-                        if (mOutputFormat->findRect("crop", &left, &top, &right, &bottom)) {
-                            mCrypto->notifyResolution(right - left + 1, bottom - top + 1);
-                        } else if (mOutputFormat->findInt32("width", &width)
-                                && mOutputFormat->findInt32("height", &height)) {
-                            mCrypto->notifyResolution(width, height);
-                        }
-                    }
-
+                    mFlags |= kFlagOutputBuffersChanged;
+                    postActivityNotificationIfPossible();
                     break;
                 }
 
-                case CodecBase::kWhatOutputFramesRendered:
+                case kWhatOutputFramesRendered:
                 {
                     // ignore these in all states except running, and check that we have a
                     // notification set
@@ -1473,7 +1671,7 @@
                     break;
                 }
 
-                case CodecBase::kWhatFillThisBuffer:
+                case kWhatFillThisBuffer:
                 {
                     /* size_t index = */updateBuffers(kPortIndexInput, msg);
 
@@ -1528,7 +1726,7 @@
                     break;
                 }
 
-                case CodecBase::kWhatDrainThisBuffer:
+                case kWhatDrainThisBuffer:
                 {
                     /* size_t index = */updateBuffers(kPortIndexOutput, msg);
 
@@ -1539,34 +1737,71 @@
                         break;
                     }
 
-                    sp<ABuffer> buffer;
-                    CHECK(msg->findBuffer("buffer", &buffer));
+                    sp<RefBase> obj;
+                    CHECK(msg->findObject("buffer", &obj));
+                    sp<MediaCodecBuffer> buffer = static_cast<MediaCodecBuffer *>(obj.get());
 
-                    int32_t omxFlags;
-                    CHECK(msg->findInt32("flags", &omxFlags));
+                    if (mOutputFormat != buffer->format()) {
+                        mOutputFormat = buffer->format();
+                        ALOGV("[%s] output format changed to: %s",
+                                mComponentName.c_str(), mOutputFormat->debugString(4).c_str());
 
-                    buffer->meta()->setInt32("omxFlags", omxFlags);
+                        if (mSoftRenderer == NULL &&
+                                mSurface != NULL &&
+                                (mFlags & kFlagUsesSoftwareRenderer)) {
+                            AString mime;
+                            CHECK(mOutputFormat->findString("mime", &mime));
 
-                    if (mFlags & kFlagGatherCodecSpecificData) {
-                        // This is the very first output buffer after a
-                        // format change was signalled, it'll either contain
-                        // the one piece of codec specific data we can expect
-                        // or there won't be codec specific data.
-                        if (omxFlags & OMX_BUFFERFLAG_CODECCONFIG) {
-                            status_t err =
-                                amendOutputFormatWithCodecSpecificData(buffer);
+                            // TODO: propagate color aspects to software renderer to allow better
+                            // color conversion to RGB. For now, just mark dataspace for YUV
+                            // rendering.
+                            int32_t dataSpace;
+                            if (mOutputFormat->findInt32("android._dataspace", &dataSpace)) {
+                                ALOGD("[%s] setting dataspace on output surface to #%x",
+                                        mComponentName.c_str(), dataSpace);
+                                int err = native_window_set_buffers_data_space(
+                                        mSurface.get(), (android_dataspace)dataSpace);
+                                ALOGW_IF(err != 0, "failed to set dataspace on surface (%d)", err);
+                            }
 
-                            if (err != OK) {
-                                ALOGE("Codec spit out malformed codec "
-                                      "specific data!");
+                            if (mime.startsWithIgnoreCase("video/")) {
+                                mSoftRenderer = new SoftwareRenderer(mSurface, mRotationDegrees);
                             }
                         }
 
-                        mFlags &= ~kFlagGatherCodecSpecificData;
+                        if (mFlags & kFlagIsEncoder) {
+                            // Before we announce the format change we should
+                            // collect codec specific data and amend the output
+                            // format as necessary.
+                            int32_t flags = 0;
+                            (void) buffer->meta()->findInt32("flags", &flags);
+                            if (flags & BUFFER_FLAG_CODECCONFIG) {
+                                status_t err =
+                                    amendOutputFormatWithCodecSpecificData(buffer);
+
+                                if (err != OK) {
+                                    ALOGE("Codec spit out malformed codec "
+                                          "specific data!");
+                                }
+                            }
+                        }
+
                         if (mFlags & kFlagIsAsync) {
                             onOutputFormatChanged();
                         } else {
                             mFlags |= kFlagOutputFormatChanged;
+                            postActivityNotificationIfPossible();
+                        }
+
+                        // Notify mCrypto of video resolution changes
+                        if (mCrypto != NULL) {
+                            int32_t left, top, right, bottom, width, height;
+                            if (mOutputFormat->findRect("crop", &left, &top, &right, &bottom)) {
+                                mCrypto->notifyResolution(right - left + 1, bottom - top + 1);
+                            } else if (mOutputFormat->findInt32("width", &width)
+                                    && mOutputFormat->findInt32("height", &height)) {
+                                mCrypto->notifyResolution(width, height);
+                            }
                         }
                     }
 
@@ -1585,22 +1820,33 @@
                     break;
                 }
 
-                case CodecBase::kWhatEOS:
+                case kWhatEOS:
                 {
                     // We already notify the client of this by using the
                     // corresponding flag in "onOutputBufferReady".
                     break;
                 }
 
-                case CodecBase::kWhatShutdownCompleted:
+                case kWhatStopCompleted:
                 {
-                    if (mState == STOPPING) {
-                        setState(INITIALIZED);
-                    } else {
-                        CHECK_EQ(mState, RELEASING);
-                        setState(UNINITIALIZED);
-                        mComponentName.clear();
+                    if (mState != STOPPING) {
+                        ALOGW("Received kWhatStopCompleted in state %d", mState);
+                        break;
                     }
+                    setState(INITIALIZED);
+                    (new AMessage)->postReply(mReplyID);
+                    break;
+                }
+
+                case kWhatReleaseCompleted:
+                {
+                    if (mState != RELEASING) {
+                        ALOGW("Received kWhatReleaseCompleted in state %d", mState);
+                        break;
+                    }
+                    setState(UNINITIALIZED);
+                    mComponentName.clear();
+
                     mFlags &= ~kFlagIsComponentAllocated;
 
                     mResourceManagerService->removeResource(getId(mResourceManagerClient));
@@ -1609,7 +1855,7 @@
                     break;
                 }
 
-                case CodecBase::kWhatFlushCompleted:
+                case kWhatFlushCompleted:
                 {
                     if (mState != FLUSHING) {
                         ALOGW("received FlushCompleted message in state %d",
@@ -1751,7 +1997,22 @@
                 crypto = NULL;
             }
 
+            ALOGV("kWhatConfigure: Old mCrypto: %p (%d)",
+                    mCrypto.get(), (mCrypto != NULL ? mCrypto->getStrongCount() : 0));
+
             mCrypto = static_cast<ICrypto *>(crypto);
+            mBufferChannel->setCrypto(mCrypto);
+
+            ALOGV("kWhatConfigure: New mCrypto: %p (%d)",
+                    mCrypto.get(), (mCrypto != NULL ? mCrypto->getStrongCount() : 0));
+
+            void *descrambler;
+            if (!msg->findPointer("descrambler", &descrambler)) {
+                descrambler = NULL;
+            }
+
+            mDescrambler = static_cast<IDescrambler *>(descrambler);
+            mBufferChannel->setDescrambler(mDescrambler);
 
             uint32_t flags;
             CHECK(msg->findInt32("flags", (int32_t *)&flags));
@@ -1773,7 +2034,6 @@
             CHECK(msg->senderAwaitsResponse(&replyID));
 
             status_t err = OK;
-            sp<Surface> surface;
 
             switch (mState) {
                 case CONFIGURED:
@@ -1915,7 +2175,9 @@
                 }
             }
 
-            if (!((mFlags & kFlagIsComponentAllocated) && targetState == UNINITIALIZED) // See 1
+            bool isReleasingAllocatedComponent =
+                    (mFlags & kFlagIsComponentAllocated) && targetState == UNINITIALIZED;
+            if (!isReleasingAllocatedComponent // See 1
                     && mState != INITIALIZED
                     && mState != CONFIGURED && !isExecuting()) {
                 // 1) Permit release to shut down the component if allocated.
@@ -1939,6 +2201,14 @@
                 break;
             }
 
+            // If we're flushing, or we're stopping but received a release
+            // request, post the reply for the pending call first, and consider
+            // it done. The reply token will be replaced after this, and we'll
+            // no longer be able to reply.
+            if (mState == FLUSHING || mState == STOPPING) {
+                (new AMessage)->postReply(mReplyID);
+            }
+
             if (mFlags & kFlagSawMediaServerDie) {
                 // It's dead, Jim. Don't expect initiateShutdown to yield
                 // any useful results now...
@@ -1950,6 +2220,15 @@
                 break;
             }
 
+            // If we already have an error, component may not be able to
+            // complete the shutdown properly. If we're stopping, post the
+            // reply now with an error to unblock the client, client can
+            // release after the failure (instead of ANR).
+            if (msg->what() == kWhatStop && (mFlags & kFlagStickyError)) {
+                PostReplyWithError(replyID, getStickyError());
+                break;
+            }
+
             mReplyID = replyID;
             setState(msg->what() == kWhatStop ? STOPPING : RELEASING);
 
@@ -1961,6 +2240,7 @@
             if (mSoftRenderer != NULL && (mFlags & kFlagPushBlankBuffersOnShutdown)) {
                 pushBlankBuffersToNativeWindow(mSurface.get());
             }
+
             break;
         }
 
@@ -2123,7 +2403,7 @@
             sp<AReplyToken> replyID;
             CHECK(msg->senderAwaitsResponse(&replyID));
 
-            if (!isExecuting()) {
+            if (!isExecuting() || !mHaveInputSurface) {
                 PostReplyWithError(replyID, INVALID_OPERATION);
                 break;
             } else if (mFlags & kFlagStickyError) {
@@ -2140,12 +2420,7 @@
         {
             sp<AReplyToken> replyID;
             CHECK(msg->senderAwaitsResponse(&replyID));
-            // Unfortunately widevine legacy source requires knowing all of the
-            // codec input buffers, so we have to provide them even in async mode.
-            int32_t widevine = 0;
-            msg->findInt32("widevine", &widevine);
-
-            if (!isExecuting() || ((mFlags & kFlagIsAsync) && !widevine)) {
+            if (!isExecuting() || (mFlags & kFlagIsAsync)) {
                 PostReplyWithError(replyID, INVALID_OPERATION);
                 break;
             } else if (mFlags & kFlagStickyError) {
@@ -2156,7 +2431,7 @@
             int32_t portIndex;
             CHECK(msg->findInt32("portIndex", &portIndex));
 
-            Vector<sp<ABuffer> > *dstBuffers;
+            Vector<sp<MediaCodecBuffer> > *dstBuffers;
             CHECK(msg->findPointer("buffers", (void **)&dstBuffers));
 
             dstBuffers->clear();
@@ -2164,14 +2439,10 @@
             // createInputSurface(), or persistent set by setInputSurface()),
             // give the client an empty input buffers array.
             if (portIndex != kPortIndexInput || !mHaveInputSurface) {
-                const Vector<BufferInfo> &srcBuffers = mPortBuffers[portIndex];
-
-                for (size_t i = 0; i < srcBuffers.size(); ++i) {
-                    const BufferInfo &info = srcBuffers.itemAt(i);
-
-                    dstBuffers->push_back(
-                            (portIndex == kPortIndexInput && mCrypto != NULL)
-                                    ? info.mEncryptedData : info.mData);
+                if (portIndex == kPortIndexInput) {
+                    mBufferChannel->getInputBufferArray(dstBuffers);
+                } else {
+                    mBufferChannel->getOutputBufferArray(dstBuffers);
                 }
             }
 
@@ -2272,6 +2543,12 @@
             break;
         }
 
+        case kWhatDrmReleaseCrypto:
+        {
+            onReleaseCrypto(msg);
+            break;
+        }
+
         default:
             TRESPASS();
     }
@@ -2300,14 +2577,12 @@
 status_t MediaCodec::queueCSDInputBuffer(size_t bufferIndex) {
     CHECK(!mCSD.empty());
 
-    const BufferInfo *info =
-        &mPortBuffers[kPortIndexInput].itemAt(bufferIndex);
+    const BufferInfo &info = mPortBuffers[kPortIndexInput][bufferIndex];
 
     sp<ABuffer> csd = *mCSD.begin();
     mCSD.erase(mCSD.begin());
 
-    const sp<ABuffer> &codecInputData =
-        (mCrypto != NULL) ? info->mEncryptedData : info->mData;
+    const sp<MediaCodecBuffer> &codecInputData = info.mData;
 
     if (csd->size() > codecInputData->capacity()) {
         return -EINVAL;
@@ -2333,7 +2608,12 @@
         delete mSoftRenderer;
         mSoftRenderer = NULL;
 
+        if ( mCrypto != NULL ) {
+            ALOGV("setState: ~mCrypto: %p (%d)",
+                    mCrypto.get(), (mCrypto != NULL ? mCrypto->getStrongCount() : 0));
+        }
         mCrypto.clear();
+        mDescrambler.clear();
         handleSetSurface(NULL);
 
         mInputFormat.clear();
@@ -2342,7 +2622,6 @@
         mFlags &= ~kFlagOutputBuffersChanged;
         mFlags &= ~kFlagStickyError;
         mFlags &= ~kFlagIsEncoder;
-        mFlags &= ~kFlagGatherCodecSpecificData;
         mFlags &= ~kFlagIsAsync;
         mStickyError = OK;
 
@@ -2376,27 +2655,19 @@
     CHECK(portIndex == kPortIndexInput || portIndex == kPortIndexOutput);
     Mutex::Autolock al(mBufferLock);
 
-    Vector<BufferInfo> *buffers = &mPortBuffers[portIndex];
+    for (size_t i = 0; i < mPortBuffers[portIndex].size(); ++i) {
+        BufferInfo *info = &mPortBuffers[portIndex][i];
 
-    for (size_t i = 0; i < buffers->size(); ++i) {
-        BufferInfo *info = &buffers->editItemAt(i);
-
-        if (info->mNotify != NULL) {
-            sp<AMessage> msg = info->mNotify;
-            info->mNotify = NULL;
+        if (info->mData != nullptr) {
+            sp<MediaCodecBuffer> buffer = info->mData;
             if (isReclaim && info->mOwnedByClient) {
                 ALOGD("port %d buffer %zu still owned by client when codec is reclaimed",
                         portIndex, i);
             } else {
-                info->mMemRef = NULL;
                 info->mOwnedByClient = false;
+                info->mData.clear();
             }
-
-            if (portIndex == kPortIndexInput) {
-                /* no error, just returning buffers */
-                msg->setInt32("err", OK);
-            }
-            msg->post();
+            mBufferChannel->discardBuffer(buffer);
         }
     }
 
@@ -2406,30 +2677,22 @@
 size_t MediaCodec::updateBuffers(
         int32_t portIndex, const sp<AMessage> &msg) {
     CHECK(portIndex == kPortIndexInput || portIndex == kPortIndexOutput);
+    size_t index;
+    CHECK(msg->findSize("index", &index));
+    sp<RefBase> obj;
+    CHECK(msg->findObject("buffer", &obj));
+    sp<MediaCodecBuffer> buffer = static_cast<MediaCodecBuffer *>(obj.get());
 
-    uint32_t bufferID;
-    CHECK(msg->findInt32("buffer-id", (int32_t*)&bufferID));
-
-    Vector<BufferInfo> *buffers = &mPortBuffers[portIndex];
-
-    for (size_t i = 0; i < buffers->size(); ++i) {
-        BufferInfo *info = &buffers->editItemAt(i);
-
-        if (info->mBufferID == bufferID) {
-            CHECK(info->mNotify == NULL);
-            CHECK(msg->findMessage("reply", &info->mNotify));
-
-            info->mFormat =
-                (portIndex == kPortIndexInput) ? mInputFormat : mOutputFormat;
-            mAvailPortBuffers[portIndex].push_back(i);
-
-            return i;
+    {
+        Mutex::Autolock al(mBufferLock);
+        if (mPortBuffers[portIndex].size() <= index) {
+            mPortBuffers[portIndex].resize(align(index + 1, kNumBuffersAlign));
         }
+        mPortBuffers[portIndex][index].mData = buffer;
     }
+    mAvailPortBuffers[portIndex].push_back(index);
 
-    TRESPASS();
-
-    return 0;
+    return index;
 }
 
 status_t MediaCodec::onQueueInputBuffer(const sp<AMessage> &msg) {
@@ -2455,7 +2718,7 @@
     CryptoPlugin::Pattern pattern;
 
     if (msg->findSize("size", &size)) {
-        if (mCrypto != NULL) {
+        if (hasCryptoOrDescrambler()) {
             ss.mNumBytesOfClearData = size;
             ss.mNumBytesOfEncryptedData = 0;
 
@@ -2467,7 +2730,9 @@
             pattern.mSkipBlocks = 0;
         }
     } else {
-        if (mCrypto == NULL) {
+        if (!hasCryptoOrDescrambler()) {
+            ALOGE("[%s] queuing secure buffer without mCrypto or mDescrambler!",
+                    mComponentName.c_str());
             return -EINVAL;
         }
 
@@ -2494,9 +2759,9 @@
         return -ERANGE;
     }
 
-    BufferInfo *info = &mPortBuffers[kPortIndexInput].editItemAt(index);
+    BufferInfo *info = &mPortBuffers[kPortIndexInput][index];
 
-    if (info->mNotify == NULL || !info->mOwnedByClient) {
+    if (info->mData == nullptr || !info->mOwnedByClient) {
         return -EACCES;
     }
 
@@ -2504,10 +2769,8 @@
         return -EINVAL;
     }
 
-    sp<AMessage> reply = info->mNotify;
     info->mData->setRange(offset, size);
     info->mData->meta()->setInt64("timeUs", timeUs);
-
     if (flags & BUFFER_FLAG_EOS) {
         info->mData->meta()->setInt32("eos", true);
     }
@@ -2516,55 +2779,34 @@
         info->mData->meta()->setInt32("csd", true);
     }
 
-    if (mCrypto != NULL) {
-        if (size > info->mEncryptedData->capacity()) {
-            return -ERANGE;
-        }
-
+    sp<MediaCodecBuffer> buffer = info->mData;
+    status_t err = OK;
+    if (hasCryptoOrDescrambler()) {
         AString *errorDetailMsg;
         CHECK(msg->findPointer("errorDetailMsg", (void **)&errorDetailMsg));
 
-        void *dst_pointer = info->mData->base();
-        ICrypto::DestinationType dst_type = ICrypto::kDestinationTypeOpaqueHandle;
-
-        if (info->mNativeHandle != NULL) {
-            dst_pointer = (void *)info->mNativeHandle->handle();
-            dst_type = ICrypto::kDestinationTypeNativeHandle;
-        } else if ((mFlags & kFlagIsSecure) == 0) {
-            dst_type = ICrypto::kDestinationTypeVmPointer;
-        }
-
-        ssize_t result = mCrypto->decrypt(
-                dst_type,
+        err = mBufferChannel->queueSecureInputBuffer(
+                buffer,
+                (mFlags & kFlagIsSecure),
                 key,
                 iv,
                 mode,
                 pattern,
-                info->mSharedEncryptedBuffer,
-                offset,
                 subSamples,
                 numSubSamples,
-                dst_pointer,
                 errorDetailMsg);
-
-        if (result < 0) {
-            return result;
-        }
-
-        info->mData->setRange(0, result);
+    } else {
+        err = mBufferChannel->queueInputBuffer(buffer);
     }
 
-    // synchronization boundary for getBufferAndFormat
-    {
+    if (err == OK) {
+        // synchronization boundary for getBufferAndFormat
         Mutex::Autolock al(mBufferLock);
         info->mOwnedByClient = false;
+        info->mData.clear();
     }
-    reply->setBuffer("buffer", info->mData);
-    reply->post();
 
-    info->mNotify = NULL;
-
-    return OK;
+    return err;
 }
 
 //static
@@ -2601,23 +2843,24 @@
         return -ERANGE;
     }
 
-    BufferInfo *info = &mPortBuffers[kPortIndexOutput].editItemAt(index);
+    BufferInfo *info = &mPortBuffers[kPortIndexOutput][index];
 
-    if (info->mNotify == NULL || !info->mOwnedByClient) {
+    if (info->mData == nullptr || !info->mOwnedByClient) {
         return -EACCES;
     }
 
     // synchronization boundary for getBufferAndFormat
+    sp<MediaCodecBuffer> buffer;
     {
         Mutex::Autolock al(mBufferLock);
         info->mOwnedByClient = false;
+        buffer = info->mData;
+        info->mData.clear();
     }
 
-    if (render && info->mData != NULL && info->mData->size() != 0) {
-        info->mNotify->setInt32("render", true);
-
+    if (render && buffer->size() != 0) {
         int64_t mediaTimeUs = -1;
-        info->mData->meta()->findInt64("timeUs", &mediaTimeUs);
+        buffer->meta()->findInt64("timeUs", &mediaTimeUs);
 
         int64_t renderTimeNs = 0;
         if (!msg->findInt64("timestampNs", &renderTimeNs)) {
@@ -2625,12 +2868,11 @@
             ALOGV("using buffer PTS of %lld", (long long)mediaTimeUs);
             renderTimeNs = mediaTimeUs * 1000;
         }
-        info->mNotify->setInt64("timestampNs", renderTimeNs);
 
         if (mSoftRenderer != NULL) {
             std::list<FrameRenderTracker::Info> doneFrames = mSoftRenderer->render(
-                    info->mData->data(), info->mData->size(),
-                    mediaTimeUs, renderTimeNs, NULL, info->mFormat);
+                    buffer->data(), buffer->size(),
+                    mediaTimeUs, renderTimeNs, NULL, buffer->format());
 
             // if we are running, notify rendered frames
             if (!doneFrames.empty() && mState == STARTED && mOnFrameRenderedNotification != NULL) {
@@ -2642,11 +2884,11 @@
                 }
             }
         }
+        mBufferChannel->renderOutputBuffer(buffer, renderTimeNs);
+    } else {
+        mBufferChannel->discardBuffer(buffer);
     }
 
-    info->mNotify->post();
-    info->mNotify = NULL;
-
     return OK;
 }
 
@@ -2662,20 +2904,20 @@
     size_t index = *availBuffers->begin();
     availBuffers->erase(availBuffers->begin());
 
-    BufferInfo *info = &mPortBuffers[portIndex].editItemAt(index);
+    BufferInfo *info = &mPortBuffers[portIndex][index];
     CHECK(!info->mOwnedByClient);
     {
         Mutex::Autolock al(mBufferLock);
         info->mOwnedByClient = true;
 
         // set image-data
-        if (info->mFormat != NULL) {
+        if (info->mData->format() != NULL) {
             sp<ABuffer> imageData;
-            if (info->mFormat->findBuffer("image-data", &imageData)) {
+            if (info->mData->format()->findBuffer("image-data", &imageData)) {
                 info->mData->meta()->setBuffer("image-data", imageData);
             }
             int32_t left, top, right, bottom;
-            if (info->mFormat->findRect("crop", &left, &top, &right, &bottom)) {
+            if (info->mData->format()->findRect("crop", &left, &top, &right, &bottom)) {
                 info->mData->meta()->setRect("crop-rect", left, top, right, bottom);
             }
         }
@@ -2696,7 +2938,7 @@
             return ALREADY_EXISTS;
         }
 
-        err = native_window_api_connect(surface.get(), NATIVE_WINDOW_API_MEDIA);
+        err = nativeWindowConnect(surface.get(), "connectToSurface");
         if (err == OK) {
             // Require a fresh set of buffers after each connect by using a unique generation
             // number. Rely on the fact that max supported process id by Linux is 2^22.
@@ -2711,12 +2953,12 @@
             // This is needed as the consumer may be holding onto stale frames that it can reattach
             // to this surface after disconnect/connect, and those free frames would inherit the new
             // generation number. Disconnecting after setting a unique generation prevents this.
-            native_window_api_disconnect(surface.get(), NATIVE_WINDOW_API_MEDIA);
-            err = native_window_api_connect(surface.get(), NATIVE_WINDOW_API_MEDIA);
+            nativeWindowDisconnect(surface.get(), "connectToSurface(reconnect)");
+            err = nativeWindowConnect(surface.get(), "connectToSurface(reconnect)");
         }
 
         if (err != OK) {
-            ALOGE("native_window_api_connect returned an error: %s (%d)", strerror(-err), err);
+            ALOGE("nativeWindowConnect returned an error: %s (%d)", strerror(-err), err);
         }
     }
     // do not return ALREADY_EXISTS unless surfaces are the same
@@ -2728,9 +2970,9 @@
     if (mSurface != NULL) {
         // Resetting generation is not technically needed, but there is no need to keep it either
         mSurface->setGenerationNumber(0);
-        err = native_window_api_disconnect(mSurface.get(), NATIVE_WINDOW_API_MEDIA);
+        err = nativeWindowDisconnect(mSurface.get(), "disconnectFromSurface");
         if (err != OK) {
-            ALOGW("native_window_api_disconnect returned an error: %s (%d)", strerror(-err), err);
+            ALOGW("nativeWindowDisconnect returned an error: %s (%d)", strerror(-err), err);
         }
         // assume disconnected even on error
         mSurface.clear();
@@ -2765,8 +3007,8 @@
 void MediaCodec::onOutputBufferAvailable() {
     int32_t index;
     while ((index = dequeuePortBuffer(kPortIndexOutput)) >= 0) {
-        const sp<ABuffer> &buffer =
-            mPortBuffers[kPortIndexOutput].itemAt(index).mData;
+        const sp<MediaCodecBuffer> &buffer =
+            mPortBuffers[kPortIndexOutput][index].mData;
         sp<AMessage> msg = mCallback->dup();
         msg->setInt32("callbackID", CB_OUTPUT_AVAILABLE);
         msg->setInt32("index", index);
@@ -2778,19 +3020,8 @@
 
         msg->setInt64("timeUs", timeUs);
 
-        int32_t omxFlags;
-        CHECK(buffer->meta()->findInt32("omxFlags", &omxFlags));
-
-        uint32_t flags = 0;
-        if (omxFlags & OMX_BUFFERFLAG_SYNCFRAME) {
-            flags |= BUFFER_FLAG_SYNCFRAME;
-        }
-        if (omxFlags & OMX_BUFFERFLAG_CODECCONFIG) {
-            flags |= BUFFER_FLAG_CODECCONFIG;
-        }
-        if (omxFlags & OMX_BUFFERFLAG_EOS) {
-            flags |= BUFFER_FLAG_EOS;
-        }
+        int32_t flags;
+        CHECK(buffer->meta()->findInt32("flags", &flags));
 
         msg->setInt32("flags", flags);
 
@@ -2822,7 +3053,6 @@
     }
 }
 
-
 void MediaCodec::postActivityNotificationIfPossible() {
     if (mActivityNotify == NULL) {
         return;
@@ -2866,7 +3096,7 @@
 }
 
 status_t MediaCodec::amendOutputFormatWithCodecSpecificData(
-        const sp<ABuffer> &buffer) {
+        const sp<MediaCodecBuffer> &buffer) {
     AString mime;
     CHECK(mOutputFormat->findString("mime", &mime));
 
@@ -2900,7 +3130,10 @@
     } else {
         // For everything else we just stash the codec specific data into
         // the output format as a single piece of csd under "csd-0".
-        mOutputFormat->setBuffer("csd-0", buffer);
+        sp<ABuffer> csd = new ABuffer(buffer->size());
+        memcpy(csd->data(), buffer->data(), buffer->size());
+        csd->setRange(0, buffer->size());
+        mOutputFormat->setBuffer("csd-0", csd);
     }
 
     return OK;
@@ -2912,10 +3145,10 @@
     }
 
     if (mState == CONFIGURED && !mBatteryStatNotified) {
-        BatteryNotifier::getInstance().noteStartVideo();
+        BatteryNotifier::getInstance().noteStartVideo(mUid);
         mBatteryStatNotified = true;
     } else if (mState == UNINITIALIZED && mBatteryStatNotified) {
-        BatteryNotifier::getInstance().noteStopVideo();
+        BatteryNotifier::getInstance().noteStopVideo(mUid);
         mBatteryStatNotified = false;
     }
 }
diff --git a/media/libstagefright/MediaCodecList.cpp b/media/libstagefright/MediaCodecList.cpp
index 23d49f0..1dcba29 100644
--- a/media/libstagefright/MediaCodecList.cpp
+++ b/media/libstagefright/MediaCodecList.cpp
@@ -44,8 +44,6 @@
 
 namespace android {
 
-const char *kMaxEncoderInputBuffers = "max-video-encoder-input-buffers";
-
 static Mutex sInitMutex;
 
 static bool parseBoolean(const char *s) {
@@ -171,12 +169,41 @@
     return sRemoteList;
 }
 
+// Treblized media codec list will be located in /odm/etc or /vendor/etc.
+static const char *kConfigLocationList[] =
+        {"/odm/etc", "/vendor/etc", "/etc"};
+static const int kConfigLocationListSize =
+        (sizeof(kConfigLocationList) / sizeof(kConfigLocationList[0]));
+
+#define MEDIA_CODECS_CONFIG_FILE_PATH_MAX_LENGTH 128
+
+static bool findMediaCodecListFileFullPath(const char *file_name, char *out_path) {
+    for (int i = 0; i < kConfigLocationListSize; i++) {
+        snprintf(out_path,
+                 MEDIA_CODECS_CONFIG_FILE_PATH_MAX_LENGTH,
+                 "%s/%s",
+                 kConfigLocationList[i],
+                 file_name);
+        struct stat file_stat;
+        if (stat(out_path, &file_stat) == 0 && S_ISREG(file_stat.st_mode)) {
+            return true;
+        }
+    }
+    return false;
+}
+
 MediaCodecList::MediaCodecList()
     : mInitCheck(NO_INIT),
       mUpdate(false),
       mGlobalSettings(new AMessage()) {
-    parseTopLevelXMLFile("/etc/media_codecs.xml");
-    parseTopLevelXMLFile("/etc/media_codecs_performance.xml", true/* ignore_errors */);
+    char config_file_path[MEDIA_CODECS_CONFIG_FILE_PATH_MAX_LENGTH];
+    if (findMediaCodecListFileFullPath("media_codecs.xml", config_file_path)) {
+        parseTopLevelXMLFile(config_file_path);
+    }
+    if (findMediaCodecListFileFullPath("media_codecs_performance.xml",
+                                       config_file_path)) {
+        parseTopLevelXMLFile(config_file_path, true/* ignore_errors */);
+    }
     parseTopLevelXMLFile(kProfilingResults, true/* ignore_errors */);
 }
 
@@ -196,9 +223,7 @@
     if (mInitCheck != OK) {
         return;  // this may fail if IMediaPlayerService is not available.
     }
-    mOMX = client.interface();
     parseXMLFile(codecs_xml);
-    mOMX.clear();
 
     if (mInitCheck != OK) {
         if (ignore_errors) {
diff --git a/media/libstagefright/MediaCodecListOverrides.cpp b/media/libstagefright/MediaCodecListOverrides.cpp
index 33795f3..095fc6a 100644
--- a/media/libstagefright/MediaCodecListOverrides.cpp
+++ b/media/libstagefright/MediaCodecListOverrides.cpp
@@ -127,61 +127,6 @@
     return format;
 }
 
-static size_t doProfileEncoderInputBuffers(
-        const AString &name, const AString &mime, const sp<MediaCodecInfo::Capabilities> &caps) {
-    ALOGV("doProfileEncoderInputBuffers: name %s, mime %s", name.c_str(), mime.c_str());
-
-    sp<AMessage> format = getMeasureFormat(true /* isEncoder */, mime, caps);
-    if (format == NULL) {
-        return 0;
-    }
-
-    format->setInt32("color-format", OMX_COLOR_FormatAndroidOpaque);
-    ALOGV("doProfileEncoderInputBuffers: format %s", format->debugString().c_str());
-
-    status_t err = OK;
-    sp<ALooper> looper = new ALooper;
-    looper->setName("MediaCodec_looper");
-    looper->start(
-            false /* runOnCallingThread */, false /* canCallJava */, ANDROID_PRIORITY_AUDIO);
-
-    sp<MediaCodec> codec = MediaCodec::CreateByComponentName(looper, name.c_str(), &err);
-    if (err != OK) {
-        ALOGE("Failed to create codec: %s", name.c_str());
-        return 0;
-    }
-
-    err = codec->configure(format, NULL, NULL, MediaCodec::CONFIGURE_FLAG_ENCODE);
-    if (err != OK) {
-        ALOGE("Failed to configure codec: %s with mime: %s", name.c_str(), mime.c_str());
-        codec->release();
-        return 0;
-    }
-
-    sp<IGraphicBufferProducer> bufferProducer;
-    err = codec->createInputSurface(&bufferProducer);
-    if (err != OK) {
-        ALOGE("Failed to create surface: %s with mime: %s", name.c_str(), mime.c_str());
-        codec->release();
-        return 0;
-    }
-
-    int minUndequeued = 0;
-    err = bufferProducer->query(
-            NATIVE_WINDOW_MIN_UNDEQUEUED_BUFFERS, &minUndequeued);
-    if (err != OK) {
-        ALOGE("Failed to query NATIVE_WINDOW_MIN_UNDEQUEUED_BUFFERS");
-        minUndequeued = 0;
-    }
-
-    err = codec->release();
-    if (err != OK) {
-        ALOGW("Failed to release codec: %s with mime: %s", name.c_str(), mime.c_str());
-    }
-
-    return minUndequeued;
-}
-
 static size_t doProfileCodecs(
         bool isEncoder, const AString &name, const AString &mime, const sp<MediaCodecInfo::Capabilities> &caps) {
     sp<AMessage> format = getMeasureFormat(isEncoder, mime, caps);
@@ -276,7 +221,6 @@
         bool forceToMeasure) {
     KeyedVector<AString, sp<MediaCodecInfo::Capabilities>> codecsNeedMeasure;
     AString supportMultipleSecureCodecs = "true";
-    size_t maxEncoderInputBuffers = 0;
     for (size_t i = 0; i < infos.size(); ++i) {
         const sp<MediaCodecInfo> info = infos[i];
         AString name = info->getCodecName();
@@ -319,21 +263,9 @@
                         supportMultipleSecureCodecs = "false";
                     }
                 }
-                if (info->isEncoder() && mimes[i].startsWith("video/")) {
-                    size_t encoderInputBuffers =
-                        doProfileEncoderInputBuffers(name, mimes[i], caps);
-                    if (encoderInputBuffers > maxEncoderInputBuffers) {
-                        maxEncoderInputBuffers = encoderInputBuffers;
-                    }
-                }
             }
         }
     }
-    if (maxEncoderInputBuffers > 0) {
-        char tmp[32];
-        sprintf(tmp, "%zu", maxEncoderInputBuffers);
-        global_results->add(kMaxEncoderInputBuffers, tmp);
-    }
     global_results->add(kPolicySupportsMultipleSecureCodecs, supportMultipleSecureCodecs);
 }
 
diff --git a/media/libstagefright/MediaCodecSource.cpp b/media/libstagefright/MediaCodecSource.cpp
index 35c07ca..059a730 100644
--- a/media/libstagefright/MediaCodecSource.cpp
+++ b/media/libstagefright/MediaCodecSource.cpp
@@ -20,10 +20,10 @@
 
 #include <inttypes.h>
 
-#include <gui/IGraphicBufferConsumer.h>
 #include <gui/IGraphicBufferProducer.h>
 #include <gui/Surface.h>
 #include <media/ICrypto.h>
+#include <media/MediaCodecBuffer.h>
 #include <media/stagefright/foundation/ABuffer.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/ALooper.h>
@@ -35,7 +35,6 @@
 #include <media/stagefright/MediaErrors.h>
 #include <media/stagefright/MediaSource.h>
 #include <media/stagefright/MetaData.h>
-#include <media/stagefright/PersistentSurface.h>
 #include <media/stagefright/Utils.h>
 
 namespace android {
@@ -325,10 +324,10 @@
         const sp<ALooper> &looper,
         const sp<AMessage> &format,
         const sp<MediaSource> &source,
-        const sp<IGraphicBufferConsumer> &consumer,
+        const sp<PersistentSurface> &persistentSurface,
         uint32_t flags) {
-    sp<MediaCodecSource> mediaSource =
-            new MediaCodecSource(looper, format, source, consumer, flags);
+    sp<MediaCodecSource> mediaSource = new MediaCodecSource(
+            looper, format, source, persistentSurface, flags);
 
     if (mediaSource->init() == OK) {
         return mediaSource;
@@ -364,8 +363,20 @@
     return postSynchronouslyAndReturnError(msg);
 }
 
-status_t MediaCodecSource::pause() {
-    (new AMessage(kWhatPause, mReflector))->post();
+
+status_t MediaCodecSource::setStopStimeUs(int64_t stopTimeUs) {
+    if (!(mFlags & FLAG_USE_SURFACE_INPUT)) {
+        return OK;
+    }
+    sp<AMessage> msg = new AMessage(kWhatSetStopTimeOffset, mReflector);
+    msg->setInt64("stop-time-us", stopTimeUs);
+    return postSynchronouslyAndReturnError(msg);
+}
+
+status_t MediaCodecSource::pause(MetaData* params) {
+    sp<AMessage> msg = new AMessage(kWhatPause, mReflector);
+    msg->setObject("meta", params);
+    msg->post();
     return OK;
 }
 
@@ -404,7 +415,7 @@
         const sp<ALooper> &looper,
         const sp<AMessage> &outputFormat,
         const sp<MediaSource> &source,
-        const sp<IGraphicBufferConsumer> &consumer,
+        const sp<PersistentSurface> &persistentSurface,
         uint32_t flags)
     : mLooper(looper),
       mOutputFormat(outputFormat),
@@ -417,7 +428,7 @@
       mSetEncoderFormat(false),
       mEncoderFormat(0),
       mEncoderDataSpace(0),
-      mGraphicBufferConsumer(consumer),
+      mPersistentSurface(persistentSurface),
       mInputBufferTimeOffsetUs(0),
       mFirstSampleSystemTimeUs(-1ll),
       mPausePending(false),
@@ -514,12 +525,11 @@
     if (mFlags & FLAG_USE_SURFACE_INPUT) {
         CHECK(mIsVideo);
 
-        if (mGraphicBufferConsumer != NULL) {
+        if (mPersistentSurface != NULL) {
             // When using persistent surface, we are only interested in the
             // consumer, but have to use PersistentSurface as a wrapper to
             // pass consumer over messages (similar to BufferProducerWrapper)
-            err = mEncoder->setInputSurface(
-                    new PersistentSurface(NULL, mGraphicBufferConsumer));
+            err = mEncoder->setInputSurface(mPersistentSurface);
         } else {
             err = mEncoder->createInputSurface(&mGraphicBufferProducer);
         }
@@ -626,22 +636,13 @@
     }
 }
 
-void MediaCodecSource::suspend() {
-    CHECK(mFlags & FLAG_USE_SURFACE_INPUT);
-    if (mEncoder != NULL) {
-        sp<AMessage> params = new AMessage;
-        params->setInt32("drop-input-frames", true);
-        mEncoder->setParameters(params);
-    }
-}
-
-void MediaCodecSource::resume(int64_t skipFramesBeforeUs) {
+void MediaCodecSource::resume(int64_t resumeStartTimeUs) {
     CHECK(mFlags & FLAG_USE_SURFACE_INPUT);
     if (mEncoder != NULL) {
         sp<AMessage> params = new AMessage;
         params->setInt32("drop-input-frames", false);
-        if (skipFramesBeforeUs > 0) {
-            params->setInt64("skip-frames-before", skipFramesBeforeUs);
+        if (resumeStartTimeUs > 0) {
+            params->setInt64("drop-start-time-us", resumeStartTimeUs);
         }
         mEncoder->setParameters(params);
     }
@@ -663,7 +664,7 @@
                 mFirstSampleSystemTimeUs = systemTime() / 1000;
                 if (mPausePending) {
                     mPausePending = false;
-                    onPause();
+                    onPause(mFirstSampleSystemTimeUs);
                     mbuf->release();
                     mAvailEncoderInputIndices.push_back(bufferIndex);
                     return OK;
@@ -689,9 +690,11 @@
 #endif // DEBUG_DRIFT_TIME
             }
 
-            sp<ABuffer> inbuf;
+            sp<MediaCodecBuffer> inbuf;
             status_t err = mEncoder->getInputBuffer(bufferIndex, &inbuf);
-            if (err != OK || inbuf == NULL) {
+
+            if (err != OK || inbuf == NULL || inbuf->data() == NULL
+                    || mbuf->data() == NULL || mbuf->size() == 0) {
                 mbuf->release();
                 signalEOS();
                 break;
@@ -728,6 +731,10 @@
         ALOGE("Failed to start while we're stopping");
         return INVALID_OPERATION;
     }
+    int64_t startTimeUs;
+    if (params == NULL || !params->findInt64(kKeyTime, &startTimeUs)) {
+        startTimeUs = -1ll;
+    }
 
     if (mStarted) {
         ALOGI("MediaCodecSource (%s) resuming", mIsVideo ? "video" : "audio");
@@ -739,7 +746,7 @@
             mEncoder->requestIDRFrame();
         }
         if (mFlags & FLAG_USE_SURFACE_INPUT) {
-            resume();
+            resume(startTimeUs);
         } else {
             CHECK(mPuller != NULL);
             mPuller->resume();
@@ -752,11 +759,14 @@
     status_t err = OK;
 
     if (mFlags & FLAG_USE_SURFACE_INPUT) {
-        int64_t startTimeUs;
-        if (!params || !params->findInt64(kKeyTime, &startTimeUs)) {
-            startTimeUs = -1ll;
+        if (mEncoder != NULL) {
+            sp<AMessage> params = new AMessage;
+            params->setInt32("drop-input-frames", false);
+            if (startTimeUs >= 0) {
+                params->setInt64("skip-frames-before", startTimeUs);
+            }
+            mEncoder->setParameters(params);
         }
-        resume(startTimeUs);
     } else {
         CHECK(mPuller != NULL);
         sp<MetaData> meta = params;
@@ -781,9 +791,12 @@
     return OK;
 }
 
-void MediaCodecSource::onPause() {
-    if (mFlags & FLAG_USE_SURFACE_INPUT) {
-        suspend();
+void MediaCodecSource::onPause(int64_t pauseStartTimeUs) {
+    if ((mFlags & FLAG_USE_SURFACE_INPUT) && (mEncoder != NULL)) {
+        sp<AMessage> params = new AMessage;
+        params->setInt32("drop-input-frames", true);
+        params->setInt64("drop-start-time-us", pauseStartTimeUs);
+        mEncoder->setParameters(params);
     } else {
         CHECK(mPuller != NULL);
         mPuller->pause();
@@ -851,9 +864,10 @@
                 break;
             }
 
-            sp<ABuffer> outbuf;
+            sp<MediaCodecBuffer> outbuf;
             status_t err = mEncoder->getOutputBuffer(index, &outbuf);
-            if (err != OK || outbuf == NULL) {
+            if (err != OK || outbuf == NULL || outbuf->data() == NULL
+                || outbuf->size() == 0) {
                 signalEOS();
                 break;
             }
@@ -870,7 +884,7 @@
                             mFirstSampleSystemTimeUs = systemTime() / 1000;
                             if (mPausePending) {
                                 mPausePending = false;
-                                onPause();
+                                onPause(mFirstSampleSystemTimeUs);
                                 mbuf->release();
                                 break;
                             }
@@ -906,6 +920,7 @@
                 }
                 mbuf->meta_data()->setInt64(kKeyTime, timeUs);
             } else {
+                mbuf->meta_data()->setInt64(kKeyTime, 0ll);
                 mbuf->meta_data()->setInt32(kKeyIsCodecConfig, true);
             }
             if (flags & MediaCodec::BUFFER_FLAG_SYNCFRAME) {
@@ -998,6 +1013,7 @@
             ALOGV("source (%s) stopped", mIsVideo ? "video" : "audio");
         }
         signalEOS();
+        break;
     }
 
     case kWhatPause:
@@ -1005,7 +1021,14 @@
         if (mFirstSampleSystemTimeUs < 0) {
             mPausePending = true;
         } else {
-            onPause();
+            sp<RefBase> obj;
+            CHECK(msg->findObject("meta", &obj));
+            MetaData *params = static_cast<MetaData *>(obj.get());
+            int64_t pauseStartTimeUs = -1;
+            if (params == NULL || !params->findInt64(kKeyTime, &pauseStartTimeUs)) {
+                pauseStartTimeUs = -1ll;
+            }
+            onPause(pauseStartTimeUs);
         }
         break;
     }
@@ -1017,7 +1040,7 @@
         CHECK(msg->findInt64("time-offset-us", &mInputBufferTimeOffsetUs));
 
         // Propagate the timestamp offset to GraphicBufferSource.
-        if (mIsVideo) {
+        if (mFlags & FLAG_USE_SURFACE_INPUT) {
             sp<AMessage> params = new AMessage;
             params->setInt64("time-offset-us", mInputBufferTimeOffsetUs);
             err = mEncoder->setParameters(params);
@@ -1028,6 +1051,26 @@
         response->postReply(replyID);
         break;
     }
+    case kWhatSetStopTimeOffset:
+    {
+        sp<AReplyToken> replyID;
+        CHECK(msg->senderAwaitsResponse(&replyID));
+        status_t err = OK;
+        int64_t stopTimeUs;
+        CHECK(msg->findInt64("stop-time-us", &stopTimeUs));
+
+        // Propagate the timestamp offset to GraphicBufferSource.
+        if (mFlags & FLAG_USE_SURFACE_INPUT) {
+            sp<AMessage> params = new AMessage;
+            params->setInt64("stop-time-us", stopTimeUs);
+            err = mEncoder->setParameters(params);
+        }
+
+        sp<AMessage> response = new AMessage;
+        response->setInt32("err", err);
+        response->postReply(replyID);
+        break;
+    }
     case kWhatGetFirstSampleSystemTimeUs:
     {
         sp<AReplyToken> replyID;
diff --git a/media/libstagefright/MediaDefs.cpp b/media/libstagefright/MediaDefs.cpp
deleted file mode 100644
index 845462b..0000000
--- a/media/libstagefright/MediaDefs.cpp
+++ /dev/null
@@ -1,69 +0,0 @@
-/*
- * Copyright (C) 2009 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <media/stagefright/MediaDefs.h>
-
-namespace android {
-
-const char *MEDIA_MIMETYPE_IMAGE_JPEG = "image/jpeg";
-
-const char *MEDIA_MIMETYPE_VIDEO_VP8 = "video/x-vnd.on2.vp8";
-const char *MEDIA_MIMETYPE_VIDEO_VP9 = "video/x-vnd.on2.vp9";
-const char *MEDIA_MIMETYPE_VIDEO_AVC = "video/avc";
-const char *MEDIA_MIMETYPE_VIDEO_HEVC = "video/hevc";
-const char *MEDIA_MIMETYPE_VIDEO_MPEG4 = "video/mp4v-es";
-const char *MEDIA_MIMETYPE_VIDEO_H263 = "video/3gpp";
-const char *MEDIA_MIMETYPE_VIDEO_MPEG2 = "video/mpeg2";
-const char *MEDIA_MIMETYPE_VIDEO_RAW = "video/raw";
-const char *MEDIA_MIMETYPE_VIDEO_DOLBY_VISION = "video/dolby-vision";
-
-const char *MEDIA_MIMETYPE_AUDIO_AMR_NB = "audio/3gpp";
-const char *MEDIA_MIMETYPE_AUDIO_AMR_WB = "audio/amr-wb";
-const char *MEDIA_MIMETYPE_AUDIO_MPEG = "audio/mpeg";
-const char *MEDIA_MIMETYPE_AUDIO_MPEG_LAYER_I = "audio/mpeg-L1";
-const char *MEDIA_MIMETYPE_AUDIO_MPEG_LAYER_II = "audio/mpeg-L2";
-const char *MEDIA_MIMETYPE_AUDIO_MIDI = "audio/midi";
-const char *MEDIA_MIMETYPE_AUDIO_AAC = "audio/mp4a-latm";
-const char *MEDIA_MIMETYPE_AUDIO_QCELP = "audio/qcelp";
-const char *MEDIA_MIMETYPE_AUDIO_VORBIS = "audio/vorbis";
-const char *MEDIA_MIMETYPE_AUDIO_OPUS = "audio/opus";
-const char *MEDIA_MIMETYPE_AUDIO_G711_ALAW = "audio/g711-alaw";
-const char *MEDIA_MIMETYPE_AUDIO_G711_MLAW = "audio/g711-mlaw";
-const char *MEDIA_MIMETYPE_AUDIO_RAW = "audio/raw";
-const char *MEDIA_MIMETYPE_AUDIO_FLAC = "audio/flac";
-const char *MEDIA_MIMETYPE_AUDIO_AAC_ADTS = "audio/aac-adts";
-const char *MEDIA_MIMETYPE_AUDIO_MSGSM = "audio/gsm";
-const char *MEDIA_MIMETYPE_AUDIO_AC3 = "audio/ac3";
-const char *MEDIA_MIMETYPE_AUDIO_EAC3 = "audio/eac3";
-
-const char *MEDIA_MIMETYPE_CONTAINER_MPEG4 = "video/mp4";
-const char *MEDIA_MIMETYPE_CONTAINER_WAV = "audio/x-wav";
-const char *MEDIA_MIMETYPE_CONTAINER_OGG = "application/ogg";
-const char *MEDIA_MIMETYPE_CONTAINER_MATROSKA = "video/x-matroska";
-const char *MEDIA_MIMETYPE_CONTAINER_MPEG2TS = "video/mp2ts";
-const char *MEDIA_MIMETYPE_CONTAINER_AVI = "video/avi";
-const char *MEDIA_MIMETYPE_CONTAINER_MPEG2PS = "video/mp2p";
-
-const char *MEDIA_MIMETYPE_CONTAINER_WVM = "video/wvm";
-
-const char *MEDIA_MIMETYPE_TEXT_3GPP = "text/3gpp-tt";
-const char *MEDIA_MIMETYPE_TEXT_SUBRIP = "application/x-subrip";
-const char *MEDIA_MIMETYPE_TEXT_VTT = "text/vtt";
-const char *MEDIA_MIMETYPE_TEXT_CEA_608 = "text/cea-608";
-const char *MEDIA_MIMETYPE_TEXT_CEA_708 = "text/cea-708";
-const char *MEDIA_MIMETYPE_DATA_TIMED_ID3 = "application/x-id3v4";
-
-}  // namespace android
diff --git a/media/libstagefright/MediaExtractor.cpp b/media/libstagefright/MediaExtractor.cpp
index 92ce88c..62c0d8a 100644
--- a/media/libstagefright/MediaExtractor.cpp
+++ b/media/libstagefright/MediaExtractor.cpp
@@ -27,8 +27,6 @@
 #include "include/OggExtractor.h"
 #include "include/MPEG2PSExtractor.h"
 #include "include/MPEG2TSExtractor.h"
-#include "include/DRMExtractor.h"
-#include "include/WVMExtractor.h"
 #include "include/FLACExtractor.h"
 #include "include/AACExtractor.h"
 #include "include/MidiExtractor.h"
@@ -38,6 +36,7 @@
 #include <binder/IServiceManager.h>
 #include <binder/MemoryDealer.h>
 
+#include <media/MediaAnalyticsItem.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/AMessage.h>
 #include <media/stagefright/DataSource.h>
@@ -49,24 +48,68 @@
 #include <utils/String8.h>
 #include <private/android_filesystem_config.h>
 
+// still doing some on/off toggling here.
+#define MEDIA_LOG       1
+
 
 namespace android {
 
-MediaExtractor::MediaExtractor():
-    mIsDrm(false) {
+// key for media statistics
+static const char *kKeyExtractor = "extractor";
+// attrs for media statistics
+
+MediaExtractor::MediaExtractor() {
     if (!LOG_NDEBUG) {
         uid_t uid = getuid();
         struct passwd *pw = getpwuid(uid);
         ALOGI("extractor created in uid: %d (%s)", getuid(), pw->pw_name);
     }
 
+    mAnalyticsItem = NULL;
+    if (MEDIA_LOG) {
+        mAnalyticsItem = new MediaAnalyticsItem(kKeyExtractor);
+        (void) mAnalyticsItem->generateSessionID();
+    }
 }
 
+MediaExtractor::~MediaExtractor() {
+
+    // log the current record, provided it has some information worth recording
+    if (MEDIA_LOG) {
+        if (mAnalyticsItem != NULL) {
+            if (mAnalyticsItem->count() > 0) {
+                mAnalyticsItem->setFinalized(true);
+                mAnalyticsItem->selfrecord();
+            }
+        }
+    }
+    if (mAnalyticsItem != NULL) {
+        delete mAnalyticsItem;
+        mAnalyticsItem = NULL;
+    }
+}
 
 sp<MetaData> MediaExtractor::getMetaData() {
     return new MetaData;
 }
 
+status_t MediaExtractor::getMetrics(Parcel *reply) {
+
+    if (mAnalyticsItem == NULL || reply == NULL) {
+        return UNKNOWN_ERROR;
+    }
+
+    populateMetrics();
+    mAnalyticsItem->writeToParcel(reply);
+
+    return OK;
+}
+
+void MediaExtractor::populateMetrics() {
+    ALOGV("MediaExtractor::populateMetrics");
+    // normally overridden in subclasses
+}
+
 uint32_t MediaExtractor::flags() const {
     return CAN_SEEK_BACKWARD | CAN_SEEK_FORWARD | CAN_PAUSE | CAN_SEEK;
 }
@@ -94,7 +137,7 @@
     sp<IMemory> mMemory;
     sp<DataSource> mSource;
     String8 mName;
-    RemoteDataSource(const sp<DataSource> &source);
+    explicit RemoteDataSource(const sp<DataSource> &source);
     DISALLOW_EVIL_CONSTRUCTORS(RemoteDataSource);
 };
 
@@ -144,34 +187,11 @@
         const sp<DataSource> &source, const char *mime) {
     ALOGV("MediaExtractor::Create %s", mime);
 
-    char value[PROPERTY_VALUE_MAX];
-    if (property_get("media.stagefright.extractremote", value, NULL)
-            && (!strcmp("0", value) || !strcasecmp("false", value))) {
+    if (!property_get_bool("media.stagefright.extractremote", true)) {
         // local extractor
         ALOGW("creating media extractor in calling process");
         return CreateFromService(source, mime);
     } else {
-        // Check if it's WVM, since WVMExtractor needs to be created in the media server process,
-        // not the extractor process.
-        String8 mime8;
-        float confidence;
-        sp<AMessage> meta;
-        if (SniffWVM(source, &mime8, &confidence, &meta) &&
-                !strcasecmp(mime8, MEDIA_MIMETYPE_CONTAINER_WVM)) {
-            return new WVMExtractor(source);
-        }
-
-        // Check if it's es-based DRM, since DRMExtractor needs to be created in the media server
-        // process, not the extractor process.
-        if (SniffDRM(source, &mime8, &confidence, &meta)) {
-            const char *drmMime = mime8.string();
-            ALOGV("Detected media content as '%s' with confidence %.2f", drmMime, confidence);
-            if (!strncmp(drmMime, "drm+es_based+", 13)) {
-                // DRMExtractor sets container metadata kKeyIsDRM to 1
-                return new DRMExtractor(source, drmMime + 14);
-            }
-        }
-
         // remote extractor
         ALOGV("get service manager");
         sp<IBinder> binder = defaultServiceManager()->getService(String16("media.extractor"));
@@ -192,14 +212,17 @@
         const sp<DataSource> &source, const char *mime) {
 
     ALOGV("MediaExtractor::CreateFromService %s", mime);
-    DataSource::RegisterDefaultSniffers();
+    RegisterDefaultSniffers();
+
+    // initialize source decryption if needed
+    source->DrmInitialization();
 
     sp<AMessage> meta;
 
     String8 tmp;
     if (mime == NULL) {
         float confidence;
-        if (!source->sniff(&tmp, &confidence, &meta)) {
+        if (!sniff(source, &tmp, &confidence, &meta)) {
             ALOGV("FAILED to autodetect media content.");
 
             return NULL;
@@ -210,28 +233,6 @@
              mime, confidence);
     }
 
-    bool isDrm = false;
-    // DRM MIME type syntax is "drm+type+original" where
-    // type is "es_based" or "container_based" and
-    // original is the content's cleartext MIME type
-    if (!strncmp(mime, "drm+", 4)) {
-        const char *originalMime = strchr(mime+4, '+');
-        if (originalMime == NULL) {
-            // second + not found
-            return NULL;
-        }
-        ++originalMime;
-        if (!strncmp(mime, "drm+es_based+", 13)) {
-            // DRMExtractor sets container metadata kKeyIsDRM to 1
-            return new DRMExtractor(source, originalMime);
-        } else if (!strncmp(mime, "drm+container_based+", 20)) {
-            mime = originalMime;
-            isDrm = true;
-        } else {
-            return NULL;
-        }
-    }
-
     MediaExtractor *ret = NULL;
     if (!strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_MPEG4)
             || !strcasecmp(mime, "audio/mp4")) {
@@ -251,9 +252,6 @@
         ret = new MatroskaExtractor(source);
     } else if (!strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_MPEG2TS)) {
         ret = new MPEG2TSExtractor(source);
-    } else if (!strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_WVM) && getuid() == AID_MEDIA) {
-        // Return now.  WVExtractor should not have the DrmFlag set in the block below.
-        return new WVMExtractor(source);
     } else if (!strcasecmp(mime, MEDIA_MIMETYPE_AUDIO_AAC_ADTS)) {
         ret = new AACExtractor(source, meta);
     } else if (!strcasecmp(mime, MEDIA_MIMETYPE_CONTAINER_MPEG2PS)) {
@@ -263,14 +261,100 @@
     }
 
     if (ret != NULL) {
-       if (isDrm) {
-           ret->setDrmFlag(true);
-       } else {
-           ret->setDrmFlag(false);
+       // track the container format (mpeg, aac, wvm, etc)
+       if (MEDIA_LOG) {
+          if (ret->mAnalyticsItem != NULL) {
+              size_t ntracks = ret->countTracks();
+              ret->mAnalyticsItem->setCString("fmt",  ret->name());
+              // tracks (size_t)
+              ret->mAnalyticsItem->setInt32("ntrk",  ntracks);
+              // metadata
+              sp<MetaData> pMetaData = ret->getMetaData();
+              if (pMetaData != NULL) {
+                String8 xx = pMetaData->toString();
+                // 'titl' -- but this verges into PII
+                // 'mime'
+                const char *mime = NULL;
+                if (pMetaData->findCString(kKeyMIMEType, &mime)) {
+                    ret->mAnalyticsItem->setCString("mime",  mime);
+                }
+                // what else is interesting and not already available?
+              }
+	  }
        }
     }
 
     return ret;
 }
 
+Mutex MediaExtractor::gSnifferMutex;
+List<MediaExtractor::SnifferFunc> MediaExtractor::gSniffers;
+bool MediaExtractor::gSniffersRegistered = false;
+
+// static
+bool MediaExtractor::sniff(
+        const sp<DataSource> &source, String8 *mimeType, float *confidence, sp<AMessage> *meta) {
+    *mimeType = "";
+    *confidence = 0.0f;
+    meta->clear();
+
+    {
+        Mutex::Autolock autoLock(gSnifferMutex);
+        if (!gSniffersRegistered) {
+            return false;
+        }
+    }
+
+    for (List<SnifferFunc>::iterator it = gSniffers.begin();
+         it != gSniffers.end(); ++it) {
+        String8 newMimeType;
+        float newConfidence;
+        sp<AMessage> newMeta;
+        if ((*it)(source, &newMimeType, &newConfidence, &newMeta)) {
+            if (newConfidence > *confidence) {
+                *mimeType = newMimeType;
+                *confidence = newConfidence;
+                *meta = newMeta;
+            }
+        }
+    }
+
+    return *confidence > 0.0;
+}
+
+// static
+void MediaExtractor::RegisterSniffer_l(SnifferFunc func) {
+    for (List<SnifferFunc>::iterator it = gSniffers.begin();
+         it != gSniffers.end(); ++it) {
+        if (*it == func) {
+            return;
+        }
+    }
+
+    gSniffers.push_back(func);
+}
+
+// static
+void MediaExtractor::RegisterDefaultSniffers() {
+    Mutex::Autolock autoLock(gSnifferMutex);
+    if (gSniffersRegistered) {
+        return;
+    }
+
+    RegisterSniffer_l(SniffMPEG4);
+    RegisterSniffer_l(SniffMatroska);
+    RegisterSniffer_l(SniffOgg);
+    RegisterSniffer_l(SniffWAV);
+    RegisterSniffer_l(SniffFLAC);
+    RegisterSniffer_l(SniffAMR);
+    RegisterSniffer_l(SniffMPEG2TS);
+    RegisterSniffer_l(SniffMP3);
+    RegisterSniffer_l(SniffAAC);
+    RegisterSniffer_l(SniffMPEG2PS);
+    RegisterSniffer_l(SniffMidi);
+
+    gSniffersRegistered = true;
+}
+
+
 }  // namespace android
diff --git a/media/libstagefright/MediaMuxer.cpp b/media/libstagefright/MediaMuxer.cpp
index b13877d..c7b8888 100644
--- a/media/libstagefright/MediaMuxer.cpp
+++ b/media/libstagefright/MediaMuxer.cpp
@@ -41,7 +41,7 @@
 MediaMuxer::MediaMuxer(int fd, OutputFormat format)
     : mFormat(format),
       mState(UNINITIALIZED) {
-    if (format == OUTPUT_FORMAT_MPEG_4) {
+    if (format == OUTPUT_FORMAT_MPEG_4 || format == OUTPUT_FORMAT_THREE_GPP) {
         mWriter = new MPEG4Writer(fd);
     } else if (format == OUTPUT_FORMAT_WEBM) {
         mWriter = new WebmWriter(fd);
@@ -108,8 +108,8 @@
         ALOGE("setLocation() must be called before start().");
         return INVALID_OPERATION;
     }
-    if (mFormat != OUTPUT_FORMAT_MPEG_4) {
-        ALOGE("setLocation() is only supported for .mp4 output.");
+    if (mFormat != OUTPUT_FORMAT_MPEG_4 && mFormat != OUTPUT_FORMAT_THREE_GPP) {
+        ALOGE("setLocation() is only supported for .mp4 pr .3gp output.");
         return INVALID_OPERATION;
     }
 
diff --git a/media/libstagefright/MediaSync.cpp b/media/libstagefright/MediaSync.cpp
index 6f2d868..0cf6fbf 100644
--- a/media/libstagefright/MediaSync.cpp
+++ b/media/libstagefright/MediaSync.cpp
@@ -478,59 +478,43 @@
     CHECK(mAudioTrack != NULL);
 
     uint32_t numFramesPlayed;
-    int64_t numFramesPlayedAt;
+    int64_t numFramesPlayedAtUs;
     AudioTimestamp ts;
-    static const int64_t kStaleTimestamp100ms = 100000;
 
     status_t res = mAudioTrack->getTimestamp(ts);
     if (res == OK) {
         // case 1: mixing audio tracks.
         numFramesPlayed = ts.mPosition;
-        numFramesPlayedAt =
-            ts.mTime.tv_sec * 1000000LL + ts.mTime.tv_nsec / 1000;
-        const int64_t timestampAge = nowUs - numFramesPlayedAt;
-        if (timestampAge > kStaleTimestamp100ms) {
-            // This is an audio FIXME.
-            // getTimestamp returns a timestamp which may come from audio
-            // mixing threads. After pausing, the MixerThread may go idle,
-            // thus the mTime estimate may become stale. Assuming that the
-            // MixerThread runs 20ms, with FastMixer at 5ms, the max latency
-            // should be about 25ms with an average around 12ms (to be
-            // verified). For safety we use 100ms.
-            ALOGV("getTimestamp: returned stale timestamp nowUs(%lld) "
-                  "numFramesPlayedAt(%lld)",
-                  (long long)nowUs, (long long)numFramesPlayedAt);
-            numFramesPlayedAt = nowUs - kStaleTimestamp100ms;
-        }
+        numFramesPlayedAtUs = ts.mTime.tv_sec * 1000000LL + ts.mTime.tv_nsec / 1000;
         //ALOGD("getTimestamp: OK %d %lld",
-        //      numFramesPlayed, (long long)numFramesPlayedAt);
+        //      numFramesPlayed, (long long)numFramesPlayedAtUs);
     } else if (res == WOULD_BLOCK) {
         // case 2: transitory state on start of a new track
         numFramesPlayed = 0;
-        numFramesPlayedAt = nowUs;
+        numFramesPlayedAtUs = nowUs;
         //ALOGD("getTimestamp: WOULD_BLOCK %d %lld",
-        //      numFramesPlayed, (long long)numFramesPlayedAt);
+        //      numFramesPlayed, (long long)numFramesPlayedAtUs);
     } else {
         // case 3: transitory at new track or audio fast tracks.
         res = mAudioTrack->getPosition(&numFramesPlayed);
         CHECK_EQ(res, (status_t)OK);
-        numFramesPlayedAt = nowUs;
-        numFramesPlayedAt += 1000LL * mAudioTrack->latency() / 2; /* XXX */
-        //ALOGD("getPosition: %d %lld", numFramesPlayed, (long long)numFramesPlayedAt);
+        numFramesPlayedAtUs = nowUs;
+        numFramesPlayedAtUs += 1000LL * mAudioTrack->latency() / 2; /* XXX */
+        //ALOGD("getPosition: %d %lld", numFramesPlayed, (long long)numFramesPlayedAtUs);
     }
 
     //can't be negative until 12.4 hrs, test.
     //CHECK_EQ(numFramesPlayed & (1 << 31), 0);
     int64_t durationUs =
         getDurationIfPlayedAtNativeSampleRate_l(numFramesPlayed)
-            + nowUs - numFramesPlayedAt;
+            + nowUs - numFramesPlayedAtUs;
     if (durationUs < 0) {
         // Occurs when numFramesPlayed position is very small and the following:
         // (1) In case 1, the time nowUs is computed before getTimestamp() is
-        //     called and numFramesPlayedAt is greater than nowUs by time more
+        //     called and numFramesPlayedAtUs is greater than nowUs by time more
         //     than numFramesPlayed.
         // (2) In case 3, using getPosition and adding mAudioTrack->latency()
-        //     to numFramesPlayedAt, by a time amount greater than
+        //     to numFramesPlayedAtUs, by a time amount greater than
         //     numFramesPlayed.
         //
         // Both of these are transitory conditions.
@@ -541,7 +525,7 @@
     ALOGV("getPlayedOutAudioDurationMedia_l(%lld) nowUs(%lld) frames(%u) "
           "framesAt(%lld)",
           (long long)durationUs, (long long)nowUs, numFramesPlayed,
-          (long long)numFramesPlayedAt);
+          (long long)numFramesPlayedAtUs);
     return durationUs;
 }
 
diff --git a/media/libstagefright/NuMediaExtractor.cpp b/media/libstagefright/NuMediaExtractor.cpp
index 4558b3c..e3ca516 100644
--- a/media/libstagefright/NuMediaExtractor.cpp
+++ b/media/libstagefright/NuMediaExtractor.cpp
@@ -22,7 +22,6 @@
 
 #include "include/ESDS.h"
 #include "include/NuCachedSource2.h"
-#include "include/WVMExtractor.h"
 
 #include <media/stagefright/foundation/ABuffer.h>
 #include <media/stagefright/foundation/ADebug.h>
@@ -36,12 +35,12 @@
 #include <media/stagefright/MediaSource.h>
 #include <media/stagefright/MetaData.h>
 #include <media/stagefright/Utils.h>
+#include <android/media/ICas.h>
 
 namespace android {
 
 NuMediaExtractor::NuMediaExtractor()
-    : mIsWidevineExtractor(false),
-      mTotalBitrate(-1ll),
+    : mTotalBitrate(-1ll),
       mDurationUs(-1ll) {
 }
 
@@ -51,7 +50,8 @@
     for (size_t i = 0; i < mSelectedTracks.size(); ++i) {
         TrackInfo *info = &mSelectedTracks.editItemAt(i);
 
-        CHECK_EQ((status_t)OK, info->mSource->stop());
+        status_t err = info->mSource->stop();
+        ALOGE_IF(err != OK, "error %d stopping track %zu", err, i);
     }
 
     mSelectedTracks.clear();
@@ -66,7 +66,7 @@
         const KeyedVector<String8, String8> *headers) {
     Mutex::Autolock autoLock(mLock);
 
-    if (mImpl != NULL) {
+    if (mImpl != NULL || path == NULL) {
         return -EINVAL;
     }
 
@@ -77,51 +77,14 @@
         return -ENOENT;
     }
 
-    mIsWidevineExtractor = false;
-    if (!strncasecmp("widevine://", path, 11)) {
-        String8 mimeType;
-        float confidence;
-        sp<AMessage> dummy;
-        bool success = SniffWVM(dataSource, &mimeType, &confidence, &dummy);
-
-        if (!success
-                || strcasecmp(
-                    mimeType.string(), MEDIA_MIMETYPE_CONTAINER_WVM)) {
-            return ERROR_UNSUPPORTED;
-        }
-
-        sp<WVMExtractor> extractor = new WVMExtractor(dataSource);
-        extractor->setAdaptiveStreamingMode(true);
-
-        mImpl = extractor;
-        mIsWidevineExtractor = true;
-    } else {
-        mImpl = MediaExtractor::Create(dataSource);
-    }
+    mImpl = MediaExtractor::Create(dataSource);
 
     if (mImpl == NULL) {
         return ERROR_UNSUPPORTED;
     }
 
-    sp<MetaData> fileMeta = mImpl->getMetaData();
-    const char *containerMime;
-    if (fileMeta != NULL
-            && fileMeta->findCString(kKeyMIMEType, &containerMime)
-            && !strcasecmp(containerMime, "video/wvm")) {
-        // We always want to use "cryptoPluginMode" when using the wvm
-        // extractor. We can tell that it is this extractor by looking
-        // at the container mime type.
-        // The cryptoPluginMode ensures that the extractor will actually
-        // give us data in a call to MediaSource::read(), unlike its
-        // default mode that we used in AwesomePlayer.
-        // TODO: change default mode
-        static_cast<WVMExtractor *>(mImpl.get())->setCryptoPluginMode(true);
-    } else if (mImpl->getDrmFlag()) {
-        // For all other drm content, we don't want to expose decrypted
-        // content to Java application.
-        mImpl.clear();
-        mImpl = NULL;
-        return ERROR_UNSUPPORTED;
+    if (mCas != NULL) {
+        mImpl->setMediaCas(mCas);
     }
 
     status_t err = updateDurationAndBitrate();
@@ -156,6 +119,10 @@
         return ERROR_UNSUPPORTED;
     }
 
+    if (mCas != NULL) {
+        mImpl->setMediaCas(mCas);
+    }
+
     err = updateDurationAndBitrate();
     if (err == OK) {
         mDataSource = fileSource;
@@ -182,6 +149,10 @@
         return ERROR_UNSUPPORTED;
     }
 
+    if (mCas != NULL) {
+        mImpl->setMediaCas(mCas);
+    }
+
     err = updateDurationAndBitrate();
     if (err == OK) {
         mDataSource = source;
@@ -190,6 +161,27 @@
     return err;
 }
 
+status_t NuMediaExtractor::setMediaCas(const sp<ICas> &cas) {
+    ALOGV("setMediaCas: cas=%p", cas.get());
+
+    Mutex::Autolock autoLock(mLock);
+
+    if (cas == NULL) {
+        return BAD_VALUE;
+    }
+
+    if (mImpl != NULL) {
+        mImpl->setMediaCas(cas);
+        status_t err = updateDurationAndBitrate();
+        if (err != OK) {
+            return err;
+        }
+    }
+
+    mCas = cas;
+    return OK;
+}
+
 status_t NuMediaExtractor::updateDurationAndBitrate() {
     if (mImpl->countTracks() > kMaxTrackCount) {
         return ERROR_UNSUPPORTED;
@@ -611,6 +603,11 @@
     return OK;
 }
 
+status_t NuMediaExtractor::getMetrics(Parcel *reply) {
+    status_t status = mImpl->getMetrics(reply);
+    return status;
+}
+
 bool NuMediaExtractor::getTotalBitrate(int64_t *bitrate) const {
     if (mTotalBitrate >= 0) {
         *bitrate = mTotalBitrate;
@@ -632,15 +629,7 @@
     Mutex::Autolock autoLock(mLock);
 
     int64_t bitrate;
-    if (mIsWidevineExtractor) {
-        sp<WVMExtractor> wvmExtractor =
-            static_cast<WVMExtractor *>(mImpl.get());
-
-        status_t finalStatus;
-        *durationUs = wvmExtractor->getCachedDurationUs(&finalStatus);
-        *eos = (finalStatus != OK);
-        return true;
-    } else if ((mDataSource->flags() & DataSource::kIsCachingDataSource)
+    if ((mDataSource->flags() & DataSource::kIsCachingDataSource)
             && getTotalBitrate(&bitrate)) {
         sp<NuCachedSource2> cachedSource =
             static_cast<NuCachedSource2 *>(mDataSource.get());
diff --git a/media/libstagefright/OMXClient.cpp b/media/libstagefright/OMXClient.cpp
index e40dbcf..1706221 100644
--- a/media/libstagefright/OMXClient.cpp
+++ b/media/libstagefright/OMXClient.cpp
@@ -22,508 +22,38 @@
 #endif
 
 #include <utils/Log.h>
+#include <cutils/properties.h>
 
 #include <binder/IServiceManager.h>
-#include <media/IMediaPlayerService.h>
 #include <media/IMediaCodecService.h>
-#include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/OMXClient.h>
-#include <cutils/properties.h>
-#include <utils/KeyedVector.h>
 
-#include "include/OMX.h"
+#include <media/IOMX.h>
+
+#include <media/omx/1.0/WOmx.h>
 
 namespace android {
 
-static bool sCodecProcessEnabled = true;
-
-struct MuxOMX : public IOMX {
-    MuxOMX(const sp<IOMX> &mediaServerOMX, const sp<IOMX> &mediaCodecOMX);
-    virtual ~MuxOMX();
-
-    // Nobody should be calling this. In case someone does anyway, just
-    // return the media server IOMX.
-    // TODO: return NULL
-    virtual IBinder *onAsBinder() {
-        ALOGE("MuxOMX::onAsBinder should not be called");
-        return IInterface::asBinder(mMediaServerOMX).get();
-    }
-
-    virtual bool livesLocally(node_id node, pid_t pid);
-
-    virtual status_t listNodes(List<ComponentInfo> *list);
-
-    virtual status_t allocateNode(
-            const char *name, const sp<IOMXObserver> &observer,
-            sp<IBinder> *nodeBinder,
-            node_id *node);
-
-    virtual status_t freeNode(node_id node);
-
-    virtual status_t sendCommand(
-            node_id node, OMX_COMMANDTYPE cmd, OMX_S32 param);
-
-    virtual status_t getParameter(
-            node_id node, OMX_INDEXTYPE index,
-            void *params, size_t size);
-
-    virtual status_t setParameter(
-            node_id node, OMX_INDEXTYPE index,
-            const void *params, size_t size);
-
-    virtual status_t getConfig(
-            node_id node, OMX_INDEXTYPE index,
-            void *params, size_t size);
-
-    virtual status_t setConfig(
-            node_id node, OMX_INDEXTYPE index,
-            const void *params, size_t size);
-
-    virtual status_t getState(
-            node_id node, OMX_STATETYPE* state);
-
-    virtual status_t storeMetaDataInBuffers(
-            node_id node, OMX_U32 port_index, OMX_BOOL enable, MetadataBufferType *type);
-
-    virtual status_t prepareForAdaptivePlayback(
-            node_id node, OMX_U32 port_index, OMX_BOOL enable,
-            OMX_U32 maxFrameWidth, OMX_U32 maxFrameHeight);
-
-    virtual status_t configureVideoTunnelMode(
-            node_id node, OMX_U32 portIndex, OMX_BOOL tunneled,
-            OMX_U32 audioHwSync, native_handle_t **sidebandHandle);
-
-    virtual status_t enableNativeBuffers(
-            node_id node, OMX_U32 port_index, OMX_BOOL graphic, OMX_BOOL enable);
-
-    virtual status_t getGraphicBufferUsage(
-            node_id node, OMX_U32 port_index, OMX_U32* usage);
-
-    virtual status_t useBuffer(
-            node_id node, OMX_U32 port_index, const sp<IMemory> &params,
-            buffer_id *buffer, OMX_U32 allottedSize);
-
-    virtual status_t useGraphicBuffer(
-            node_id node, OMX_U32 port_index,
-            const sp<GraphicBuffer> &graphicBuffer, buffer_id *buffer);
-
-    virtual status_t updateGraphicBufferInMeta(
-            node_id node, OMX_U32 port_index,
-            const sp<GraphicBuffer> &graphicBuffer, buffer_id buffer);
-
-    virtual status_t updateNativeHandleInMeta(
-            node_id node, OMX_U32 port_index,
-            const sp<NativeHandle> &nativeHandle, buffer_id buffer);
-
-    virtual status_t createInputSurface(
-            node_id node, OMX_U32 port_index, android_dataspace dataSpace,
-            sp<IGraphicBufferProducer> *bufferProducer, MetadataBufferType *type);
-
-    virtual status_t createPersistentInputSurface(
-            sp<IGraphicBufferProducer> *bufferProducer,
-            sp<IGraphicBufferConsumer> *bufferConsumer);
-
-    virtual status_t setInputSurface(
-            node_id node, OMX_U32 port_index,
-            const sp<IGraphicBufferConsumer> &bufferConsumer, MetadataBufferType *type);
-
-    virtual status_t signalEndOfInputStream(node_id node);
-
-    virtual status_t allocateSecureBuffer(
-            node_id node, OMX_U32 port_index, size_t size,
-            buffer_id *buffer, void **buffer_data, sp<NativeHandle> *native_handle);
-
-    virtual status_t allocateBufferWithBackup(
-            node_id node, OMX_U32 port_index, const sp<IMemory> &params,
-            buffer_id *buffer, OMX_U32 allottedSize);
-
-    virtual status_t freeBuffer(
-            node_id node, OMX_U32 port_index, buffer_id buffer);
-
-    virtual status_t fillBuffer(node_id node, buffer_id buffer, int fenceFd);
-
-    virtual status_t emptyBuffer(
-            node_id node,
-            buffer_id buffer,
-            OMX_U32 range_offset, OMX_U32 range_length,
-            OMX_U32 flags, OMX_TICKS timestamp, int fenceFd);
-
-    virtual status_t getExtensionIndex(
-            node_id node,
-            const char *parameter_name,
-            OMX_INDEXTYPE *index);
-
-    virtual status_t setInternalOption(
-            node_id node,
-            OMX_U32 port_index,
-            InternalOptionType type,
-            const void *data,
-            size_t size);
-
-private:
-    mutable Mutex mLock;
-
-    sp<IOMX> mMediaServerOMX;
-    sp<IOMX> mMediaCodecOMX;
-    sp<IOMX> mLocalOMX;
-
-    typedef enum {
-        LOCAL,
-        MEDIAPROCESS,
-        CODECPROCESS
-    } node_location;
-
-    KeyedVector<node_id, node_location> mNodeLocation;
-
-    bool isLocalNode(node_id node) const;
-    bool isLocalNode_l(node_id node) const;
-    const sp<IOMX> &getOMX(node_id node) const;
-    const sp<IOMX> &getOMX_l(node_id node) const;
-
-    static node_location getPreferredCodecLocation(const char *name);
-
-    DISALLOW_EVIL_CONSTRUCTORS(MuxOMX);
-};
-
-MuxOMX::MuxOMX(const sp<IOMX> &mediaServerOMX, const sp<IOMX> &mediaCodecOMX)
-    : mMediaServerOMX(mediaServerOMX),
-      mMediaCodecOMX(mediaCodecOMX) {
-    ALOGI("MuxOMX ctor");
-}
-
-MuxOMX::~MuxOMX() {
-}
-
-bool MuxOMX::isLocalNode(node_id node) const {
-    Mutex::Autolock autoLock(mLock);
-
-    return isLocalNode_l(node);
-}
-
-bool MuxOMX::isLocalNode_l(node_id node) const {
-    return mNodeLocation.valueFor(node) == LOCAL;
-}
-
-// static
-MuxOMX::node_location MuxOMX::getPreferredCodecLocation(const char *name) {
-    if (sCodecProcessEnabled) {
-        // all codecs go to codec process unless excluded using system property, in which case
-        // all non-secure decoders, OMX.google.* codecs and encoders can go in the codec process
-        // (non-OMX.google.* encoders can be excluded using system property.)
-        if ((strcasestr(name, "decoder")
-                        && strcasestr(name, ".secure") != name + strlen(name) - 7)
-                || (strcasestr(name, "encoder")
-                        && !property_get_bool("media.stagefright.legacyencoder", false))
-                || !property_get_bool("media.stagefright.less-secure", false)
-                || !strncasecmp(name, "OMX.google.", 11)) {
-            return CODECPROCESS;
-        }
-        // everything else runs in the media server
-        return MEDIAPROCESS;
-    } else {
-#ifdef __LP64__
-        // 64 bit processes always run OMX remote on MediaServer
-        return MEDIAPROCESS;
-#else
-        // 32 bit processes run only OMX.google.* components locally
-        if (!strncasecmp(name, "OMX.google.", 11)) {
-            return LOCAL;
-        }
-        return MEDIAPROCESS;
-#endif
-    }
-}
-
-const sp<IOMX> &MuxOMX::getOMX(node_id node) const {
-    Mutex::Autolock autoLock(mLock);
-    return getOMX_l(node);
-}
-
-const sp<IOMX> &MuxOMX::getOMX_l(node_id node) const {
-    node_location loc = mNodeLocation.valueFor(node);
-    if (loc == LOCAL) {
-        return mLocalOMX;
-    } else if (loc == MEDIAPROCESS) {
-        return mMediaServerOMX;
-    } else if (loc == CODECPROCESS) {
-        return mMediaCodecOMX;
-    }
-    ALOGE("Couldn't determine node location for node %d: %d, using local", node, loc);
-    return mLocalOMX;
-}
-
-bool MuxOMX::livesLocally(node_id node, pid_t pid) {
-    return getOMX(node)->livesLocally(node, pid);
-}
-
-status_t MuxOMX::listNodes(List<ComponentInfo> *list) {
-    Mutex::Autolock autoLock(mLock);
-
-    if (mLocalOMX == NULL) {
-        mLocalOMX = new OMX;
-    }
-
-    return mLocalOMX->listNodes(list);
-}
-
-status_t MuxOMX::allocateNode(
-        const char *name, const sp<IOMXObserver> &observer,
-        sp<IBinder> *nodeBinder,
-        node_id *node) {
-    Mutex::Autolock autoLock(mLock);
-
-    sp<IOMX> omx;
-
-    node_location loc = getPreferredCodecLocation(name);
-    if (loc == CODECPROCESS) {
-        omx = mMediaCodecOMX;
-    } else if (loc == MEDIAPROCESS) {
-        omx = mMediaServerOMX;
-    } else {
-        if (mLocalOMX == NULL) {
-            mLocalOMX = new OMX;
-        }
-        omx = mLocalOMX;
-    }
-
-    status_t err = omx->allocateNode(name, observer, nodeBinder, node);
-    ALOGV("allocated node_id %x on %s OMX", *node, omx == mMediaCodecOMX ? "codecprocess" :
-            omx == mMediaServerOMX ? "mediaserver" : "local");
-
-
-    if (err != OK) {
-        return err;
-    }
-
-    mNodeLocation.add(*node, loc);
-
-    return OK;
-}
-
-status_t MuxOMX::freeNode(node_id node) {
-    Mutex::Autolock autoLock(mLock);
-
-    // exit if we have already freed the node
-    if (mNodeLocation.indexOfKey(node) < 0) {
-        ALOGD("MuxOMX::freeNode: node %d seems to be released already --- ignoring.", node);
-        return OK;
-    }
-
-    status_t err = getOMX_l(node)->freeNode(node);
-
-    if (err != OK) {
-        return err;
-    }
-
-    mNodeLocation.removeItem(node);
-
-    return OK;
-}
-
-status_t MuxOMX::sendCommand(
-        node_id node, OMX_COMMANDTYPE cmd, OMX_S32 param) {
-    return getOMX(node)->sendCommand(node, cmd, param);
-}
-
-status_t MuxOMX::getParameter(
-        node_id node, OMX_INDEXTYPE index,
-        void *params, size_t size) {
-    return getOMX(node)->getParameter(node, index, params, size);
-}
-
-status_t MuxOMX::setParameter(
-        node_id node, OMX_INDEXTYPE index,
-        const void *params, size_t size) {
-    return getOMX(node)->setParameter(node, index, params, size);
-}
-
-status_t MuxOMX::getConfig(
-        node_id node, OMX_INDEXTYPE index,
-        void *params, size_t size) {
-    return getOMX(node)->getConfig(node, index, params, size);
-}
-
-status_t MuxOMX::setConfig(
-        node_id node, OMX_INDEXTYPE index,
-        const void *params, size_t size) {
-    return getOMX(node)->setConfig(node, index, params, size);
-}
-
-status_t MuxOMX::getState(
-        node_id node, OMX_STATETYPE* state) {
-    return getOMX(node)->getState(node, state);
-}
-
-status_t MuxOMX::storeMetaDataInBuffers(
-        node_id node, OMX_U32 port_index, OMX_BOOL enable, MetadataBufferType *type) {
-    return getOMX(node)->storeMetaDataInBuffers(node, port_index, enable, type);
-}
-
-status_t MuxOMX::prepareForAdaptivePlayback(
-        node_id node, OMX_U32 port_index, OMX_BOOL enable,
-        OMX_U32 maxFrameWidth, OMX_U32 maxFrameHeight) {
-    return getOMX(node)->prepareForAdaptivePlayback(
-            node, port_index, enable, maxFrameWidth, maxFrameHeight);
-}
-
-status_t MuxOMX::configureVideoTunnelMode(
-        node_id node, OMX_U32 portIndex, OMX_BOOL enable,
-        OMX_U32 audioHwSync, native_handle_t **sidebandHandle) {
-    return getOMX(node)->configureVideoTunnelMode(
-            node, portIndex, enable, audioHwSync, sidebandHandle);
-}
-
-status_t MuxOMX::enableNativeBuffers(
-        node_id node, OMX_U32 port_index, OMX_BOOL graphic, OMX_BOOL enable) {
-    return getOMX(node)->enableNativeBuffers(node, port_index, graphic, enable);
-}
-
-status_t MuxOMX::getGraphicBufferUsage(
-        node_id node, OMX_U32 port_index, OMX_U32* usage) {
-    return getOMX(node)->getGraphicBufferUsage(node, port_index, usage);
-}
-
-status_t MuxOMX::useBuffer(
-        node_id node, OMX_U32 port_index, const sp<IMemory> &params,
-        buffer_id *buffer, OMX_U32 allottedSize) {
-    return getOMX(node)->useBuffer(node, port_index, params, buffer, allottedSize);
-}
-
-status_t MuxOMX::useGraphicBuffer(
-        node_id node, OMX_U32 port_index,
-        const sp<GraphicBuffer> &graphicBuffer, buffer_id *buffer) {
-    return getOMX(node)->useGraphicBuffer(
-            node, port_index, graphicBuffer, buffer);
-}
-
-status_t MuxOMX::updateGraphicBufferInMeta(
-        node_id node, OMX_U32 port_index,
-        const sp<GraphicBuffer> &graphicBuffer, buffer_id buffer) {
-    return getOMX(node)->updateGraphicBufferInMeta(
-            node, port_index, graphicBuffer, buffer);
-}
-
-status_t MuxOMX::updateNativeHandleInMeta(
-        node_id node, OMX_U32 port_index,
-        const sp<NativeHandle> &nativeHandle, buffer_id buffer) {
-    return getOMX(node)->updateNativeHandleInMeta(
-            node, port_index, nativeHandle, buffer);
-}
-
-status_t MuxOMX::createInputSurface(
-        node_id node, OMX_U32 port_index, android_dataspace dataSpace,
-        sp<IGraphicBufferProducer> *bufferProducer, MetadataBufferType *type) {
-    status_t err = getOMX(node)->createInputSurface(
-            node, port_index, dataSpace, bufferProducer, type);
-    return err;
-}
-
-status_t MuxOMX::createPersistentInputSurface(
-        sp<IGraphicBufferProducer> *bufferProducer,
-        sp<IGraphicBufferConsumer> *bufferConsumer) {
-    sp<IOMX> omx;
-    {
-        Mutex::Autolock autoLock(mLock);
-        if (property_get_bool("media.stagefright.legacyencoder", false)) {
-            omx = mMediaServerOMX;
-        } else {
-            omx = mMediaCodecOMX;
-        }
-    }
-    return omx->createPersistentInputSurface(
-            bufferProducer, bufferConsumer);
-}
-
-status_t MuxOMX::setInputSurface(
-        node_id node, OMX_U32 port_index,
-        const sp<IGraphicBufferConsumer> &bufferConsumer, MetadataBufferType *type) {
-    return getOMX(node)->setInputSurface(node, port_index, bufferConsumer, type);
-}
-
-status_t MuxOMX::signalEndOfInputStream(node_id node) {
-    return getOMX(node)->signalEndOfInputStream(node);
-}
-
-status_t MuxOMX::allocateSecureBuffer(
-        node_id node, OMX_U32 port_index, size_t size,
-        buffer_id *buffer, void **buffer_data, sp<NativeHandle> *native_handle) {
-    return getOMX(node)->allocateSecureBuffer(
-            node, port_index, size, buffer, buffer_data, native_handle);
-}
-
-status_t MuxOMX::allocateBufferWithBackup(
-        node_id node, OMX_U32 port_index, const sp<IMemory> &params,
-        buffer_id *buffer, OMX_U32 allottedSize) {
-    return getOMX(node)->allocateBufferWithBackup(
-            node, port_index, params, buffer, allottedSize);
-}
-
-status_t MuxOMX::freeBuffer(
-        node_id node, OMX_U32 port_index, buffer_id buffer) {
-    return getOMX(node)->freeBuffer(node, port_index, buffer);
-}
-
-status_t MuxOMX::fillBuffer(node_id node, buffer_id buffer, int fenceFd) {
-    return getOMX(node)->fillBuffer(node, buffer, fenceFd);
-}
-
-status_t MuxOMX::emptyBuffer(
-        node_id node,
-        buffer_id buffer,
-        OMX_U32 range_offset, OMX_U32 range_length,
-        OMX_U32 flags, OMX_TICKS timestamp, int fenceFd) {
-    return getOMX(node)->emptyBuffer(
-            node, buffer, range_offset, range_length, flags, timestamp, fenceFd);
-}
-
-status_t MuxOMX::getExtensionIndex(
-        node_id node,
-        const char *parameter_name,
-        OMX_INDEXTYPE *index) {
-    return getOMX(node)->getExtensionIndex(node, parameter_name, index);
-}
-
-status_t MuxOMX::setInternalOption(
-        node_id node,
-        OMX_U32 port_index,
-        InternalOptionType type,
-        const void *data,
-        size_t size) {
-    return getOMX(node)->setInternalOption(node, port_index, type, data, size);
-}
-
 OMXClient::OMXClient() {
-    char value[PROPERTY_VALUE_MAX];
-    if (property_get("media.stagefright.codecremote", value, NULL)
-            && (!strcmp("0", value) || !strcasecmp("false", value))) {
-        sCodecProcessEnabled = false;
-    }
 }
 
-status_t OMXClient::connect() {
+status_t OMXClient::connect(bool* trebleFlag) {
+    int32_t trebleOmx = property_get_int32("persist.media.treble_omx", -1);
+    if ((trebleOmx == 1) || ((trebleOmx == -1) &&
+            property_get_bool("persist.hal.binderization", 0))) {
+        if (trebleFlag != nullptr) {
+            *trebleFlag = true;
+        }
+        return connectTreble();
+    }
+    if (trebleFlag != nullptr) {
+        *trebleFlag = false;
+    }
+    return connectLegacy();
+}
+
+status_t OMXClient::connectLegacy() {
     sp<IServiceManager> sm = defaultServiceManager();
-    sp<IBinder> playerbinder = sm->getService(String16("media.player"));
-    sp<IMediaPlayerService> mediaservice = interface_cast<IMediaPlayerService>(playerbinder);
-
-    if (mediaservice.get() == NULL) {
-        ALOGE("Cannot obtain IMediaPlayerService");
-        return NO_INIT;
-    }
-
-    sp<IOMX> mediaServerOMX = mediaservice->getOMX();
-    if (mediaServerOMX.get() == NULL) {
-        ALOGE("Cannot obtain mediaserver IOMX");
-        return NO_INIT;
-    }
-
-    // If we don't want to use the codec process, and the media server OMX
-    // is local, use it directly instead of going through MuxOMX
-    if (!sCodecProcessEnabled &&
-            mediaServerOMX->livesLocally(0 /* node */, getpid())) {
-        mOMX = mediaServerOMX;
-        return OK;
-    }
-
     sp<IBinder> codecbinder = sm->getService(String16("media.codec"));
     sp<IMediaCodecService> codecservice = interface_cast<IMediaCodecService>(codecbinder);
 
@@ -532,22 +62,33 @@
         return NO_INIT;
     }
 
-    sp<IOMX> mediaCodecOMX = codecservice->getOMX();
-    if (mediaCodecOMX.get() == NULL) {
+    mOMX = codecservice->getOMX();
+    if (mOMX.get() == NULL) {
         ALOGE("Cannot obtain mediacodec IOMX");
         return NO_INIT;
     }
 
-    mOMX = new MuxOMX(mediaServerOMX, mediaCodecOMX);
+    return OK;
+}
 
+status_t OMXClient::connectTreble() {
+    using namespace ::android::hardware::media::omx::V1_0;
+    sp<IOmx> tOmx = IOmx::getService("default");
+    if (tOmx.get() == nullptr) {
+        ALOGE("Cannot obtain Treble IOmx.");
+        return NO_INIT;
+    }
+    if (!tOmx->isRemote()) {
+        ALOGE("Treble IOmx is in passthrough mode.");
+        return NO_INIT;
+    }
+    mOMX = new utils::LWOmx(tOmx);
+    ALOGI("Treble IOmx obtained");
     return OK;
 }
 
 void OMXClient::disconnect() {
-    if (mOMX.get() != NULL) {
-        mOMX.clear();
-        mOMX = NULL;
-    }
+    mOMX.clear();
 }
 
 }  // namespace android
diff --git a/media/libstagefright/SampleTable.cpp b/media/libstagefright/SampleTable.cpp
index 93cd275..1d2a931 100644
--- a/media/libstagefright/SampleTable.cpp
+++ b/media/libstagefright/SampleTable.cpp
@@ -566,7 +566,7 @@
 
     if (mDataSource->readAt(data_offset + 8, mSyncSamples,
             (size_t)allocSize) != (ssize_t)allocSize) {
-        delete mSyncSamples;
+        delete[] mSyncSamples;
         mSyncSamples = NULL;
         return ERROR_IO;
     }
@@ -998,4 +998,3 @@
 }
 
 }  // namespace android
-
diff --git a/media/libstagefright/SimpleDecodingSource.cpp b/media/libstagefright/SimpleDecodingSource.cpp
index 2503a32..ea7d5af 100644
--- a/media/libstagefright/SimpleDecodingSource.cpp
+++ b/media/libstagefright/SimpleDecodingSource.cpp
@@ -17,7 +17,7 @@
 #include <gui/Surface.h>
 
 #include <media/ICrypto.h>
-#include <media/stagefright/foundation/ABuffer.h>
+#include <media/MediaCodecBuffer.h>
 #include <media/stagefright/MediaDefs.h>
 #include <media/stagefright/foundation/ALooper.h>
 #include <media/stagefright/foundation/AMessage.h>
@@ -230,7 +230,7 @@
                 break;
             }
 
-            sp<ABuffer> in_buffer;
+            sp<MediaCodecBuffer> in_buffer;
             if (res == OK) {
                 res = mCodec->getInputBuffer(in_ix, &in_buffer);
             }
@@ -344,7 +344,7 @@
             return res;
         }
 
-        sp<ABuffer> out_buffer;
+        sp<MediaCodecBuffer> out_buffer;
         res = mCodec->getOutputBuffer(out_ix, &out_buffer);
         if (res != OK) {
             ALOGW("[%s] could not get output buffer #%zu",
diff --git a/media/libstagefright/SkipCutBuffer.cpp b/media/libstagefright/SkipCutBuffer.cpp
index d30be88..ee9016d 100644
--- a/media/libstagefright/SkipCutBuffer.cpp
+++ b/media/libstagefright/SkipCutBuffer.cpp
@@ -88,7 +88,8 @@
     buffer->set_range(0, copied);
 }
 
-void SkipCutBuffer::submit(const sp<ABuffer>& buffer) {
+template <typename T>
+void SkipCutBuffer::submitInternal(const sp<T>& buffer) {
     if (mCutBuffer == NULL) {
         // passthrough mode
         return;
@@ -120,6 +121,14 @@
     buffer->setRange(0, copied);
 }
 
+void SkipCutBuffer::submit(const sp<ABuffer>& buffer) {
+    submitInternal(buffer);
+}
+
+void SkipCutBuffer::submit(const sp<MediaCodecBuffer>& buffer) {
+    submitInternal(buffer);
+}
+
 void SkipCutBuffer::clear() {
     mWriteHead = mReadHead = 0;
     mFrontPadding = mSkip;
diff --git a/media/libstagefright/StagefrightMetadataRetriever.cpp b/media/libstagefright/StagefrightMetadataRetriever.cpp
index be5067d..883a4dd 100644
--- a/media/libstagefright/StagefrightMetadataRetriever.cpp
+++ b/media/libstagefright/StagefrightMetadataRetriever.cpp
@@ -27,8 +27,8 @@
 
 #include <media/ICrypto.h>
 #include <media/IMediaHTTPService.h>
+#include <media/MediaCodecBuffer.h>
 
-#include <media/stagefright/foundation/ABuffer.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/AMessage.h>
 #include <media/stagefright/ColorConverter.h>
@@ -55,8 +55,6 @@
     : mParsedMetaData(false),
       mAlbumArt(NULL) {
     ALOGV("StagefrightMetadataRetriever()");
-
-    DataSource::RegisterDefaultSniffers();
 }
 
 StagefrightMetadataRetriever::~StagefrightMetadataRetriever() {
@@ -223,7 +221,7 @@
         return NULL;
     }
 
-    Vector<sp<ABuffer> > inputBuffers;
+    Vector<sp<MediaCodecBuffer> > inputBuffers;
     err = decoder->getInputBuffers(&inputBuffers);
     if (err != OK) {
         ALOGW("failed to get input buffers: %d (%s)", err, asString(err));
@@ -232,7 +230,7 @@
         return NULL;
     }
 
-    Vector<sp<ABuffer> > outputBuffers;
+    Vector<sp<MediaCodecBuffer> > outputBuffers;
     err = decoder->getOutputBuffers(&outputBuffers);
     if (err != OK) {
         ALOGW("failed to get output buffers: %d (%s)", err, asString(err));
@@ -264,7 +262,7 @@
         size_t inputIndex = -1;
         int64_t ptsUs = 0ll;
         uint32_t flags = 0;
-        sp<ABuffer> codecBuffer = NULL;
+        sp<MediaCodecBuffer> codecBuffer = NULL;
 
         while (haveMoreInputs) {
             err = decoder->dequeueInputBuffer(&inputIndex, kBufferTimeOutUs);
@@ -376,7 +374,7 @@
     }
 
     ALOGV("successfully decoded video frame.");
-    sp<ABuffer> videoFrameBuffer = outputBuffers.itemAt(index);
+    sp<MediaCodecBuffer> videoFrameBuffer = outputBuffers.itemAt(index);
 
     if (thumbNailTime >= 0) {
         if (timeUs != thumbNailTime) {
@@ -418,6 +416,22 @@
             && trackMeta->findInt32(kKeySARHeight, &sarHeight)
             && sarHeight != 0) {
         frame->mDisplayWidth = (frame->mDisplayWidth * sarWidth) / sarHeight;
+    } else {
+        int32_t width, height;
+        if (trackMeta->findInt32(kKeyDisplayWidth, &width)
+                && trackMeta->findInt32(kKeyDisplayHeight, &height)
+                && frame->mDisplayWidth > 0 && frame->mDisplayHeight > 0
+                && width > 0 && height > 0) {
+            if (frame->mDisplayHeight * (int64_t)width / height > (int64_t)frame->mDisplayWidth) {
+                frame->mDisplayHeight =
+                        (int32_t)(height * (int64_t)frame->mDisplayWidth / width);
+            } else {
+                frame->mDisplayWidth =
+                        (int32_t)(frame->mDisplayHeight * (int64_t)width / height);
+            }
+            ALOGV("thumbNail width and height are overridden to %d x %d",
+                    frame->mDisplayWidth, frame->mDisplayHeight);
+        }
     }
 
     int32_t srcFormat;
@@ -754,9 +768,9 @@
 
     if (numTracks == 1) {
         const char *fileMIME;
-        CHECK(meta->findCString(kKeyMIMEType, &fileMIME));
 
-        if (!strcasecmp(fileMIME, "video/x-matroska")) {
+        if (meta->findCString(kKeyMIMEType, &fileMIME) &&
+                !strcasecmp(fileMIME, "video/x-matroska")) {
             sp<MetaData> trackMeta = mExtractor->getTrackMetaData(0);
             const char *trackMIME;
             CHECK(trackMeta->findCString(kKeyMIMEType, &trackMIME));
@@ -769,11 +783,6 @@
             }
         }
     }
-
-    // To check whether the media file is drm-protected
-    if (mExtractor->getDrmFlag()) {
-        mMetaData.add(METADATA_KEY_IS_DRM, String8("1"));
-    }
 }
 
 void StagefrightMetadataRetriever::clearMetadata() {
diff --git a/media/libstagefright/SurfaceMediaSource.cpp b/media/libstagefright/SurfaceMediaSource.cpp
index 4f1ef30..d0d82b3 100644
--- a/media/libstagefright/SurfaceMediaSource.cpp
+++ b/media/libstagefright/SurfaceMediaSource.cpp
@@ -29,7 +29,6 @@
 #include <ui/GraphicBuffer.h>
 #include <gui/BufferItem.h>
 #include <gui/ISurfaceComposer.h>
-#include <gui/IGraphicBufferAlloc.h>
 #include <OMX_Component.h>
 
 #include <utils/Log.h>
diff --git a/media/libstagefright/SurfaceUtils.cpp b/media/libstagefright/SurfaceUtils.cpp
index 568837a..82e959e 100644
--- a/media/libstagefright/SurfaceUtils.cpp
+++ b/media/libstagefright/SurfaceUtils.cpp
@@ -31,15 +31,15 @@
 
     // In some cases we need to reconnect so that we can dequeue all buffers
     if (reconnect) {
-        err = native_window_api_disconnect(nativeWindow, NATIVE_WINDOW_API_MEDIA);
+        err = nativeWindowDisconnect(nativeWindow, "setNativeWindowSizeFormatAndUsage");
         if (err != NO_ERROR) {
-            ALOGE("native_window_api_disconnect failed: %s (%d)", strerror(-err), -err);
+            ALOGE("nativeWindowDisconnect failed: %s (%d)", strerror(-err), -err);
             return err;
         }
 
-        err = native_window_api_connect(nativeWindow, NATIVE_WINDOW_API_MEDIA);
+        err = nativeWindowConnect(nativeWindow, "setNativeWindowSizeFormatAndUsage");
         if (err != NO_ERROR) {
-            ALOGE("native_window_api_connect failed: %s (%d)", strerror(-err), -err);
+            ALOGE("nativeWindowConnect failed: %s (%d)", strerror(-err), -err);
             return err;
         }
     }
@@ -127,7 +127,7 @@
     // We need to reconnect to the ANativeWindow as a CPU client to ensure that
     // no frames get dropped by SurfaceFlinger assuming that these are video
     // frames.
-    err = native_window_api_disconnect(nativeWindow, NATIVE_WINDOW_API_MEDIA);
+    err = nativeWindowDisconnect(nativeWindow, "pushBlankBuffersToNativeWindow");
     if (err != NO_ERROR) {
         ALOGE("error pushing blank frames: api_disconnect failed: %s (%d)", strerror(-err), -err);
         return err;
@@ -136,7 +136,7 @@
     err = native_window_api_connect(nativeWindow, NATIVE_WINDOW_API_CPU);
     if (err != NO_ERROR) {
         ALOGE("error pushing blank frames: api_connect failed: %s (%d)", strerror(-err), -err);
-        (void)native_window_api_connect(nativeWindow, NATIVE_WINDOW_API_MEDIA);
+        (void)nativeWindowConnect(nativeWindow, "pushBlankBuffersToNativeWindow(err)");
         return err;
     }
 
@@ -219,7 +219,7 @@
         }
     }
 
-    err2 = native_window_api_connect(nativeWindow, NATIVE_WINDOW_API_MEDIA);
+    err2 = nativeWindowConnect(nativeWindow, "pushBlankBuffersToNativeWindow(err2)");
     if (err2 != NO_ERROR) {
         ALOGE("error pushing blank frames: api_connect failed: %s (%d)", strerror(-err), -err);
         if (err == NO_ERROR) {
@@ -230,5 +230,22 @@
     return err;
 }
 
+status_t nativeWindowConnect(ANativeWindow *surface, const char *reason) {
+    ALOGD("connecting to surface %p, reason %s", surface, reason);
+
+    status_t err = native_window_api_connect(surface, NATIVE_WINDOW_API_MEDIA);
+    ALOGE_IF(err != OK, "Failed to connect to surface %p, err %d", surface, err);
+
+    return err;
+}
+
+status_t nativeWindowDisconnect(ANativeWindow *surface, const char *reason) {
+    ALOGD("disconnecting from surface %p, reason %s", surface, reason);
+
+    status_t err = native_window_api_disconnect(surface, NATIVE_WINDOW_API_MEDIA);
+    ALOGE_IF(err != OK, "Failed to disconnect from surface %p, err %d", surface, err);
+
+    return err;
+}
 }  // namespace android
 
diff --git a/media/libstagefright/Utils.cpp b/media/libstagefright/Utils.cpp
index 36be7a0..e8c46e3 100644
--- a/media/libstagefright/Utils.cpp
+++ b/media/libstagefright/Utils.cpp
@@ -41,9 +41,9 @@
 #include <media/stagefright/MediaDefs.h>
 #include <media/AudioSystem.h>
 #include <media/MediaPlayerInterface.h>
-#include <hardware/audio.h>
 #include <media/stagefright/Utils.h>
 #include <media/AudioParameter.h>
+#include <system/audio.h>
 
 namespace android {
 
@@ -610,6 +610,22 @@
     sp<AMessage> msg = new AMessage;
     msg->setString("mime", mime);
 
+    uint32_t type;
+    const void *data;
+    size_t size;
+    if (meta->findData(kKeyCas, &type, &data, &size)) {
+        sp<ABuffer> buffer = new (std::nothrow) ABuffer(size);
+        msg->setBuffer("cas", buffer);
+        memcpy(buffer->data(), data, size);
+    }
+
+    if (!strncasecmp("video/scrambled", mime, 15)
+            || !strncasecmp("audio/scrambled", mime, 15)) {
+
+        *format = msg;
+        return OK;
+    }
+
     int64_t durationUs;
     if (meta->findInt64(kKeyDuration, &durationUs)) {
         msg->setInt64("durationUs", durationUs);
@@ -637,6 +653,11 @@
         msg->setInt32("track-id", trackID);
     }
 
+    const char *lang;
+    if (meta->findCString(kKeyMediaLanguage, &lang)) {
+        msg->setString("language", lang);
+    }
+
     if (!strncasecmp("video/", mime, 6)) {
         int32_t width, height;
         if (!meta->findInt32(kKeyWidth, &width)
@@ -647,6 +668,13 @@
         msg->setInt32("width", width);
         msg->setInt32("height", height);
 
+        int32_t displayWidth, displayHeight;
+        if (meta->findInt32(kKeyDisplayWidth, &displayWidth)
+                && meta->findInt32(kKeyDisplayHeight, &displayHeight)) {
+            msg->setInt32("display-width", displayWidth);
+            msg->setInt32("display-height", displayHeight);
+        }
+
         int32_t sarWidth, sarHeight;
         if (meta->findInt32(kKeySARWidth, &sarWidth)
                 && meta->findInt32(kKeySARHeight, &sarHeight)) {
@@ -747,9 +775,6 @@
         msg->setInt32("frame-rate", fps);
     }
 
-    uint32_t type;
-    const void *data;
-    size_t size;
     if (meta->findData(kKeyAVCC, &type, &data, &size)) {
         // Parse the AVCDecoderConfigurationRecord
 
@@ -1273,6 +1298,11 @@
         meta->setInt32(kKeyMaxBitRate, maxBitrate);
     }
 
+    AString lang;
+    if (msg->findString("language", &lang)) {
+        meta->setCString(kKeyMediaLanguage, lang.c_str());
+    }
+
     if (mime.startsWith("video/")) {
         int32_t width;
         int32_t height;
@@ -1290,6 +1320,13 @@
             meta->setInt32(kKeySARHeight, sarHeight);
         }
 
+        int32_t displayWidth, displayHeight;
+        if (msg->findInt32("display-width", &displayWidth)
+                && msg->findInt32("display-height", &displayHeight)) {
+            meta->setInt32(kKeyDisplayWidth, displayWidth);
+            meta->setInt32(kKeyDisplayHeight, displayHeight);
+        }
+
         int32_t colorFormat;
         if (msg->findInt32("color-format", &colorFormat)) {
             meta->setInt32(kKeyColorFormat, colorFormat);
@@ -1505,6 +1542,7 @@
     { MEDIA_MIMETYPE_AUDIO_AAC,         AUDIO_FORMAT_AAC },
     { MEDIA_MIMETYPE_AUDIO_VORBIS,      AUDIO_FORMAT_VORBIS },
     { MEDIA_MIMETYPE_AUDIO_OPUS,        AUDIO_FORMAT_OPUS},
+    { MEDIA_MIMETYPE_AUDIO_AC3,         AUDIO_FORMAT_AC3},
     { 0, AUDIO_FORMAT_INVALID }
 };
 
@@ -1634,9 +1672,7 @@
         return AString("<URI suppressed>");
     }
 
-    char prop[PROPERTY_VALUE_MAX];
-    if (property_get("media.stagefright.log-uri", prop, "false") &&
-        (!strcmp(prop, "1") || !strcmp(prop, "true"))) {
+    if (property_get_bool("media.stagefright.log-uri", false)) {
         return uri;
     }
 
@@ -1747,6 +1783,45 @@
     *sync = settings;
 }
 
+void writeToAMessage(const sp<AMessage> &msg, const BufferingSettings &buffering) {
+    msg->setInt32("init-mode", buffering.mInitialBufferingMode);
+    msg->setInt32("rebuffer-mode", buffering.mRebufferingMode);
+    msg->setInt32("init-ms", buffering.mInitialWatermarkMs);
+    msg->setInt32("init-kb", buffering.mInitialWatermarkKB);
+    msg->setInt32("rebuffer-low-ms", buffering.mRebufferingWatermarkLowMs);
+    msg->setInt32("rebuffer-high-ms", buffering.mRebufferingWatermarkHighMs);
+    msg->setInt32("rebuffer-low-kb", buffering.mRebufferingWatermarkLowKB);
+    msg->setInt32("rebuffer-high-kb", buffering.mRebufferingWatermarkHighKB);
+}
+
+void readFromAMessage(const sp<AMessage> &msg, BufferingSettings *buffering /* nonnull */) {
+    int32_t value;
+    if (msg->findInt32("init-mode", &value)) {
+        buffering->mInitialBufferingMode = (BufferingMode)value;
+    }
+    if (msg->findInt32("rebuffer-mode", &value)) {
+        buffering->mRebufferingMode = (BufferingMode)value;
+    }
+    if (msg->findInt32("init-ms", &value)) {
+        buffering->mInitialWatermarkMs = value;
+    }
+    if (msg->findInt32("init-kb", &value)) {
+        buffering->mInitialWatermarkKB = value;
+    }
+    if (msg->findInt32("rebuffer-low-ms", &value)) {
+        buffering->mRebufferingWatermarkLowMs = value;
+    }
+    if (msg->findInt32("rebuffer-high-ms", &value)) {
+        buffering->mRebufferingWatermarkHighMs = value;
+    }
+    if (msg->findInt32("rebuffer-low-kb", &value)) {
+        buffering->mRebufferingWatermarkLowKB = value;
+    }
+    if (msg->findInt32("rebuffer-high-kb", &value)) {
+        buffering->mRebufferingWatermarkHighKB = value;
+    }
+}
+
 AString nameForFd(int fd) {
     const size_t SIZE = 256;
     char buffer[SIZE];
diff --git a/media/libstagefright/WVMExtractor.cpp b/media/libstagefright/WVMExtractor.cpp
deleted file mode 100644
index 1c170b8..0000000
--- a/media/libstagefright/WVMExtractor.cpp
+++ /dev/null
@@ -1,191 +0,0 @@
-/*
- * Copyright (C) 2010 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "WVMExtractor"
-#include <utils/Log.h>
-
-#include "include/WVMExtractor.h"
-
-#include <arpa/inet.h>
-#include <utils/String8.h>
-#include <media/stagefright/foundation/ADebug.h>
-#include <media/stagefright/Utils.h>
-#include <media/stagefright/DataSource.h>
-#include <media/stagefright/MediaSource.h>
-#include <media/stagefright/MediaDefs.h>
-#include <media/stagefright/MetaData.h>
-#include <media/stagefright/MediaErrors.h>
-#include <media/stagefright/MediaBuffer.h>
-#include <dlfcn.h>
-
-#include <utils/Errors.h>
-
-/* The extractor lifetime is short - just long enough to get
- * the media sources constructed - so the shared lib needs to remain open
- * beyond the lifetime of the extractor.  So keep the handle as a global
- * rather than a member of the extractor
- */
-void *gVendorLibHandle = NULL;
-
-namespace android {
-
-WVMExtractor::WVMExtractor(const sp<DataSource> &source)
-    : mDataSource(source)
-{
-    if (!getVendorLibHandle()) {
-        return;
-    }
-
-    typedef WVMLoadableExtractor *(*GetInstanceFunc)(sp<DataSource>);
-    GetInstanceFunc getInstanceFunc =
-        (GetInstanceFunc) dlsym(gVendorLibHandle,
-                "_ZN7android11GetInstanceENS_2spINS_10DataSourceEEE");
-
-    if (getInstanceFunc) {
-        if (source->DrmInitialization(
-                MEDIA_MIMETYPE_CONTAINER_WVM) != NULL) {
-            mImpl = (*getInstanceFunc)(source);
-            CHECK(mImpl != NULL);
-            setDrmFlag(true);
-        } else {
-            ALOGE("Drm manager failed to initialize.");
-        }
-    } else {
-        ALOGE("Failed to locate GetInstance in libwvm.so");
-    }
-}
-
-static void init_routine()
-{
-    gVendorLibHandle = dlopen("libwvm.so", RTLD_NOW);
-    if (gVendorLibHandle == NULL) {
-        ALOGE("Failed to open libwvm.so: %s", dlerror());
-    }
-}
-
-bool WVMExtractor::getVendorLibHandle()
-{
-    static pthread_once_t sOnceControl = PTHREAD_ONCE_INIT;
-    pthread_once(&sOnceControl, init_routine);
-
-    return gVendorLibHandle != NULL;
-}
-
-WVMExtractor::~WVMExtractor() {
-}
-
-size_t WVMExtractor::countTracks() {
-    return (mImpl != NULL) ? mImpl->countTracks() : 0;
-}
-
-sp<IMediaSource> WVMExtractor::getTrack(size_t index) {
-    if (mImpl == NULL) {
-        return NULL;
-    }
-    return mImpl->getTrack(index);
-}
-
-sp<MetaData> WVMExtractor::getTrackMetaData(size_t index, uint32_t flags) {
-    if (mImpl == NULL) {
-        return NULL;
-    }
-    return mImpl->getTrackMetaData(index, flags);
-}
-
-sp<MetaData> WVMExtractor::getMetaData() {
-    if (mImpl == NULL) {
-        return NULL;
-    }
-    return mImpl->getMetaData();
-}
-
-int64_t WVMExtractor::getCachedDurationUs(status_t *finalStatus) {
-    if (mImpl == NULL) {
-        return 0;
-    }
-
-    return mImpl->getCachedDurationUs(finalStatus);
-}
-
-status_t WVMExtractor::getEstimatedBandwidthKbps(int32_t *kbps) {
-    if (mImpl == NULL) {
-        return UNKNOWN_ERROR;
-    }
-
-    return mImpl->getEstimatedBandwidthKbps(kbps);
-}
-
-
-void WVMExtractor::setAdaptiveStreamingMode(bool adaptive) {
-    if (mImpl != NULL) {
-        mImpl->setAdaptiveStreamingMode(adaptive);
-    }
-}
-
-void WVMExtractor::setCryptoPluginMode(bool cryptoPluginMode) {
-    if (mImpl != NULL) {
-        mImpl->setCryptoPluginMode(cryptoPluginMode);
-    }
-}
-
-void WVMExtractor::setUID(uid_t uid) {
-    if (mImpl != NULL) {
-        mImpl->setUID(uid);
-    }
-}
-
-status_t WVMExtractor::getError() {
-    if (mImpl == NULL) {
-       return UNKNOWN_ERROR;
-    }
-
-    return mImpl->getError();
-}
-
-void WVMExtractor::setError(status_t err) {
-    if (mImpl != NULL) {
-        mImpl->setError(err);
-    }
-}
-
-bool SniffWVM(
-    const sp<DataSource> &source, String8 *mimeType, float *confidence,
-        sp<AMessage> *) {
-
-    if (!WVMExtractor::getVendorLibHandle()) {
-        return false;
-    }
-
-    typedef WVMLoadableExtractor *(*SnifferFunc)(const sp<DataSource>&);
-    SnifferFunc snifferFunc =
-        (SnifferFunc) dlsym(gVendorLibHandle,
-                            "_ZN7android15IsWidevineMediaERKNS_2spINS_10DataSourceEEE");
-
-    if (snifferFunc) {
-        if ((*snifferFunc)(source)) {
-            *mimeType = MEDIA_MIMETYPE_CONTAINER_WVM;
-            *confidence = 10.0f;
-            return true;
-        }
-    } else {
-        ALOGE("IsWidevineMedia not found in libwvm.so");
-    }
-
-    return false;
-}
-
-} //namespace android
-
diff --git a/media/libstagefright/avc_utils.cpp b/media/libstagefright/avc_utils.cpp
index 763381e..6e7ef35 100644
--- a/media/libstagefright/avc_utils.cpp
+++ b/media/libstagefright/avc_utils.cpp
@@ -420,8 +420,8 @@
     meta->setInt32(kKeyWidth, width);
     meta->setInt32(kKeyHeight, height);
 
-    if (sarWidth > 1 || sarHeight > 1) {
-        // We treat 0:0 (unspecified) as 1:1.
+    if ((sarWidth > 0 && sarHeight > 0) && (sarWidth != 1 || sarHeight != 1)) {
+        // We treat *:0 and 0:* (unspecified) as 1:1.
 
         meta->setInt32(kKeySARWidth, sarWidth);
         meta->setInt32(kKeySARHeight, sarHeight);
@@ -447,7 +447,8 @@
     return meta;
 }
 
-bool IsIDR(const sp<ABuffer> &buffer) {
+template <typename T>
+bool IsIDRInternal(const sp<T> &buffer) {
     const uint8_t *data = buffer->data();
     size_t size = buffer->size();
 
@@ -472,6 +473,14 @@
     return foundIDR;
 }
 
+bool IsIDR(const sp<ABuffer> &buffer) {
+    return IsIDRInternal(buffer);
+}
+
+bool IsIDR(const sp<MediaCodecBuffer> &buffer) {
+    return IsIDRInternal(buffer);
+}
+
 bool IsAVCReferenceFrame(const sp<ABuffer> &accessUnit) {
     const uint8_t *data = accessUnit->data();
     size_t size = accessUnit->size();
diff --git a/media/libstagefright/codec2/Android.mk b/media/libstagefright/codec2/Android.mk
new file mode 100644
index 0000000..ef06ed7
--- /dev/null
+++ b/media/libstagefright/codec2/Android.mk
@@ -0,0 +1,21 @@
+LOCAL_PATH:= $(call my-dir)
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES:= \
+        C2.cpp    \
+
+LOCAL_C_INCLUDES += \
+        $(TOP)/frameworks/av/media/libstagefright/codec2/include \
+        $(TOP)/frameworks/native/include/media/hardware \
+
+LOCAL_MODULE:= libstagefright_codec2
+LOCAL_CFLAGS += -Werror -Wall
+LOCAL_CLANG := true
+LOCAL_SANITIZE := unsigned-integer-overflow signed-integer-overflow cfi
+LOCAL_SANITIZE_DIAG := cfi
+
+include $(BUILD_SHARED_LIBRARY)
+
+################################################################################
+
+include $(call all-makefiles-under,$(LOCAL_PATH))
diff --git a/media/libstagefright/codec2/C2.cpp b/media/libstagefright/codec2/C2.cpp
new file mode 100644
index 0000000..a51b073
--- /dev/null
+++ b/media/libstagefright/codec2/C2.cpp
@@ -0,0 +1,36 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <C2.h>
+#include <C2Buffer.h>
+#include <C2Component.h>
+#include <C2Config.h>
+#include <C2Param.h>
+#include <C2ParamDef.h>
+#include <C2Work.h>
+
+namespace android {
+
+/**
+ * There is nothing here yet. This library is built to see what symbols and methods get
+ * defined as part of the API include files.
+ *
+ * Going forward, the Codec2 library will contain utility methods that are useful for
+ * Codec2 clients.
+ */
+
+} // namespace android
+
diff --git a/media/libstagefright/codec2/include/C2.h b/media/libstagefright/codec2/include/C2.h
new file mode 100644
index 0000000..7d00a03
--- /dev/null
+++ b/media/libstagefright/codec2/include/C2.h
@@ -0,0 +1,287 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef C2_H_
+#define C2_H_
+
+#include <string>
+#include <vector>
+#include <list>
+
+#ifdef __ANDROID__
+
+#include <utils/Errors.h>       // for status_t
+#include <utils/Timers.h>       // for nsecs_t
+
+namespace android {
+
+#else
+
+#include <errno.h>
+typedef int64_t nsecs_t;
+
+enum {
+    GRALLOC_USAGE_SW_READ_OFTEN,
+    GRALLOC_USAGE_RENDERSCRIPT,
+    GRALLOC_USAGE_HW_TEXTURE,
+    GRALLOC_USAGE_HW_COMPOSER,
+    GRALLOC_USAGE_HW_VIDEO_ENCODER,
+    GRALLOC_USAGE_PROTECTED,
+    GRALLOC_USAGE_SW_WRITE_OFTEN,
+    GRALLOC_USAGE_HW_RENDER,
+};
+
+#endif
+
+/** \mainpage Codec2
+ *
+ * Codec2 is a frame-based data processing API used by android.
+ *
+ * The framework accesses components via the \ref API.
+ */
+
+/** \ingroup API
+ *
+ * The Codec2 API defines the operation of data processing components and their interaction with
+ * the rest of the system.
+ *
+ * Coding Conventions
+ *
+ * Mitigating Binary Compatibility.
+ *
+ * While full binary compatibility is not a goal of the API (due to our use of STL), we try to
+ * mitigate binary breaks by adhering to the following conventions:
+ *
+ * - at most one vtable with placeholder virtual methods
+ * - all optional/placeholder virtual methods returning a status_t, with C2_NOT_IMPLEMENTED not
+ *   requiring any update to input/output arguments.
+ * - limiting symbol export of inline methods
+ * - use of pimpl (or shared-pimpl)
+ *
+ * Naming
+ *
+ * - all classes and types prefix with C2
+ * - classes for internal use prefix with _C2
+ * - enum values in global namespace prefix with C2_ all caps
+ * - enum values inside classes have no C2_ prefix as class already has it
+ * - supporting two kinds of enum naming: all-caps and kCamelCase
+ * \todo revisit kCamelCase for param-type
+ *
+ * Aspects
+ *
+ * Aspects define certain common behavior across a group of objects.
+ * - classes whose name matches _C2.*Aspect
+ * - only protected constructors
+ * - no desctructor and copiable
+ * - all methods are inline or static (this is opposite of the interface paradigm where all methods
+ *   are virtual, which would not work due to the at most one vtable rule.)
+ * - only private variables (this prevents subclasses interfering with the aspects.)
+ */
+
+/// \defgroup types Common Types
+/// @{
+
+/**
+ * C2String: basic string implementation
+ */
+typedef std::string C2String;
+typedef const char *C2StringLiteral;
+
+/**
+ * C2Error: status codes used.
+ */
+typedef int32_t C2Error;
+enum {
+#ifndef __ANDROID__
+    OK                  = 0,
+    BAD_VALUE           = -EINVAL,
+    BAD_INDEX           = -EOVERFLOW,
+    UNKNOWN_TRANSACTION = -EBADMSG,
+    ALREADY_EXISTS      = -EEXIST,
+    NAME_NOT_FOUND      = -ENOENT,
+    INVALID_OPERATION   = -ENOSYS,
+    NO_MEMORY           = -ENOMEM,
+    PERMISSION_DENIED   = -EPERM,
+    TIMED_OUT           = -ETIMEDOUT,
+    UNKNOWN_ERROR       = -EINVAL,
+#endif
+
+    C2_OK               = OK,                   ///< operation completed successfully
+
+    // bad input
+    C2_BAD_VALUE        = BAD_VALUE,            ///< argument has invalid value (user error)
+    C2_BAD_INDEX        = BAD_INDEX,            ///< argument uses invalid index (user error)
+    C2_UNSUPPORTED      = UNKNOWN_TRANSACTION,  ///< argument/index is value but not supported \todo is this really BAD_INDEX/VALUE?
+
+    // bad sequencing of events
+    C2_DUPLICATE        = ALREADY_EXISTS,       ///< object already exists
+    C2_NOT_FOUND        = NAME_NOT_FOUND,       ///< object not found
+    C2_BAD_STATE        = INVALID_OPERATION,    ///< operation is not permitted in the current state
+
+    // bad environment
+    C2_NO_MEMORY        = NO_MEMORY,            ///< not enough memory to complete operation
+    C2_NO_PERMISSION    = PERMISSION_DENIED,    ///< missing permission to complete operation
+    C2_TIMED_OUT        = TIMED_OUT,            ///< operation did not complete within timeout
+
+    // bad versioning
+    C2_NOT_IMPLEMENTED  = UNKNOWN_TRANSACTION,  ///< operation is not implemented (optional only) \todo for now reuse error code
+
+    // unknown fatal
+    C2_CORRUPTED        = UNKNOWN_ERROR,        ///< some unexpected error prevented the operation
+};
+
+/// @}
+
+/// \defgroup utils Utilities
+/// @{
+
+#define C2_DO_NOT_COPY(type, args...) \
+    type args& operator=(const type args&) = delete; \
+    type(const type args&) = delete; \
+
+#define C2_PURE __attribute__((pure))
+#define C2_CONST __attribute__((const))
+#define C2_HIDE __attribute__((visibility("hidden")))
+#define C2_INTERNAL __attribute__((internal_linkage))
+
+#define DEFINE_OTHER_COMPARISON_OPERATORS(type) \
+    inline bool operator!=(const type &other) { return !(*this == other); } \
+    inline bool operator<=(const type &other) { return (*this == other) || (*this < other); } \
+    inline bool operator>=(const type &other) { return !(*this < other); } \
+    inline bool operator>(const type &other) { return !(*this < other) && !(*this == other); }
+
+#define DEFINE_FIELD_BASED_COMPARISON_OPERATORS(type, field) \
+    inline bool operator<(const type &other) const { return field < other.field; } \
+    inline bool operator==(const type &other) const { return field == other.field; } \
+    DEFINE_OTHER_COMPARISON_OPERATORS(type)
+
+/// \cond INTERNAL
+
+/// \defgroup utils_internal
+/// @{
+
+template<typename... T> struct c2_types;
+
+/** specialization for a single type */
+template<typename T>
+struct c2_types<T> {
+    typedef typename std::decay<T>::type wide_type;
+    typedef wide_type narrow_type;
+    typedef wide_type mintype;
+};
+
+/** specialization for two types */
+template<typename T, typename U>
+struct c2_types<T, U> {
+    static_assert(std::is_floating_point<T>::value == std::is_floating_point<U>::value,
+                  "mixing floating point and non-floating point types is disallowed");
+    static_assert(std::is_signed<T>::value == std::is_signed<U>::value,
+                  "mixing signed and unsigned types is disallowed");
+
+    typedef typename std::decay<
+            decltype(true ? std::declval<T>() : std::declval<U>())>::type wide_type;
+    typedef typename std::decay<
+            typename std::conditional<sizeof(T) < sizeof(U), T, U>::type>::type narrow_type;
+    typedef typename std::conditional<
+            std::is_signed<T>::value, wide_type, narrow_type>::type mintype;
+};
+
+/// @}
+
+/// \endcond
+
+/**
+ * Type support utility class. Only supports similar classes, such as:
+ * - all floating point
+ * - all unsigned/all signed
+ * - all pointer
+ */
+template<typename T, typename U, typename... V>
+struct c2_types<T, U, V...> {
+    /** Common type that accommodates all template parameter types. */
+    typedef typename c2_types<typename c2_types<T, U>::wide_type, V...>::wide_type wide_type;
+    /** Narrowest type of the template parameter types. */
+    typedef typename c2_types<typename c2_types<T, U>::narrow_type, V...>::narrow_type narrow_type;
+    /** Type that accommodates the minimum value for any input for the template parameter types. */
+    typedef typename c2_types<typename c2_types<T, U>::mintype, V...>::mintype mintype;
+};
+
+/**
+ *  \ingroup utils_internal
+ * specialization for two values */
+template<typename T, typename U>
+inline constexpr typename c2_types<T, U>::wide_type c2_max(const T a, const U b) {
+    typedef typename c2_types<T, U>::wide_type wide_type;
+    return ({ wide_type a_(a), b_(b); a_ > b_ ? a_ : b_; });
+}
+
+/**
+ * Finds the maximum value of a list of "similarly typed" values.
+ *
+ * This is an extension to std::max where the types do not have to be identical, and the smallest
+ * resulting type is used that accommodates the argument types.
+ *
+ * \note Value types must be similar, e.g. all floating point, all pointers, all signed, or all
+ * unsigned.
+ *
+ * @return the largest of the input arguments.
+ */
+template<typename T, typename U, typename... V>
+constexpr typename c2_types<T, U, V...>::wide_type c2_max(const T a, const U b, const V ... c) {
+    typedef typename c2_types<T, U, V...>::wide_type wide_type;
+    return ({ wide_type a_(a), b_(c2_max(b, c...)); a_ > b_ ? a_ : b_; });
+}
+
+/**
+ *  \ingroup utils_internal
+ * specialization for two values */
+template<typename T, typename U>
+inline constexpr typename c2_types<T, U>::mintype c2_min(const T a, const U b) {
+    typedef typename c2_types<T, U>::wide_type wide_type;
+    return ({
+        wide_type a_(a), b_(b);
+        static_cast<typename c2_types<T, U>::mintype>(a_ < b_ ? a_ : b_);
+    });
+}
+
+/**
+ * Finds the minimum value of a list of "similarly typed" values.
+ *
+ * This is an extension to std::min where the types do not have to be identical, and the smallest
+ * resulting type is used that accommodates the argument types.
+ *
+ * \note Value types must be similar, e.g. all floating point, all pointers, all signed, or all
+ * unsigned.
+ *
+ * @return the smallest of the input arguments.
+ */
+template<typename T, typename U, typename... V>
+constexpr typename c2_types<T, U, V...>::mintype c2_min(const T a, const U b, const V ... c) {
+    typedef typename c2_types<U, V...>::mintype rest_type;
+    typedef typename c2_types<T, rest_type>::wide_type wide_type;
+    return ({
+        wide_type a_(a), b_(c2_min(b, c...));
+        static_cast<typename c2_types<T, rest_type>::mintype>(a_ < b_ ? a_ : b_);
+    });
+}
+
+/// @}
+
+#ifdef __ANDROID__
+} // namespace android
+#endif
+
+#endif  // C2_H_
diff --git a/media/libstagefright/codec2/include/C2Buffer.h b/media/libstagefright/codec2/include/C2Buffer.h
new file mode 100644
index 0000000..9f6b487
--- /dev/null
+++ b/media/libstagefright/codec2/include/C2Buffer.h
@@ -0,0 +1,1777 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef C2BUFFER_H_
+#define C2BUFFER_H_
+
+#include <C2.h>
+#include <C2Param.h> // for C2Info
+
+#include <list>
+#include <memory>
+
+typedef int C2Fence;
+
+#ifdef __ANDROID__
+
+// #include <system/window.h>
+#include <cutils/native_handle.h>
+#include <hardware/gralloc.h> // TODO: remove
+
+typedef native_handle_t C2Handle;
+
+#else
+
+typedef void* C2Handle;
+
+#endif
+
+namespace android {
+
+/// \defgroup buffer Buffers
+/// @{
+
+/// \defgroup buffer_sync Synchronization
+/// @{
+
+/**
+ * Synchronization is accomplished using event and fence objects.
+ *
+ * These are cross-process extensions of promise/future infrastructure.
+ * Events are analogous to std::promise<void>, whereas fences are to std::shared_future<void>.
+ *
+ * Fences and events are shareable/copyable.
+ *
+ * Fences are used in two scenarios, and all copied instances refer to the same event.
+ * \todo do events need to be copyable or should they be unique?
+ *
+ * acquire sync fence object: signaled when it is safe for the component or client to access
+ * (the contents of) an object.
+ *
+ * release sync fence object: \todo
+ *
+ * Fences can be backed by hardware. Hardware fences are guaranteed to signal NO MATTER WHAT within
+ * a short (platform specific) amount of time; this guarantee is usually less than 15 msecs.
+ */
+
+/**
+ * Fence object used by components and the framework.
+ *
+ * Implements the waiting for an event, analogous to a 'future'.
+ *
+ * To be implemented by vendors if using HW fences.
+ */
+class C2Fence {
+public:
+    /**
+     * Waits for a fence to be signaled with a timeout.
+     *
+     * \todo a mechanism to cancel a wait - for now the only way to do this is to abandon the
+     * event, but fences are shared so canceling a wait will cancel all waits.
+     *
+     * \param timeoutNs           the maximum time to wait in nsecs
+     *
+     * \retval C2_OK            the fence has been signaled
+     * \retval C2_TIMED_OUT     the fence has not been signaled within the timeout
+     * \retval C2_BAD_STATE     the fence has been abandoned without being signaled (it will never
+     *                          be signaled)
+     * \retval C2_NO_PERMISSION no permission to wait for the fence (unexpected - system)
+     * \retval C2_CORRUPTED     some unknown error prevented waiting for the fence (unexpected)
+     */
+    C2Error wait(nsecs_t timeoutNs);
+
+    /**
+     * Used to check if this fence is valid (if there is a chance for it to be signaled.)
+     * A fence becomes invalid if the controling event is destroyed without it signaling the fence.
+     *
+     * \return whether this fence is valid
+     */
+    bool valid() const;
+
+    /**
+     * Used to check if this fence has been signaled (is ready).
+     *
+     * \return whether this fence has been signaled
+     */
+    bool ready() const;
+
+    /**
+     * Returns a file descriptor that can be used to wait for this fence in a select system call.
+     * \note The returned file descriptor, if valid, must be closed by the caller.
+     *
+     * This can be used in e.g. poll() system calls. This file becomes readable (POLLIN) when the
+     * fence is signaled, and bad (POLLERR) if the fence is abandoned.
+     *
+     * \return a file descriptor representing this fence (with ownership), or -1 if the fence
+     * has already been signaled (\todo or abandoned).
+     *
+     * \todo this must be compatible with fences used by gralloc
+     */
+    int fd() const;
+
+    /**
+     * Returns whether this fence is a hardware-backed fence.
+     * \return whether this is a hardware fence
+     */
+    bool isHW() const;
+
+private:
+    class Impl;
+    std::shared_ptr<Impl> mImpl;
+};
+
+/**
+ * Event object used by components and the framework.
+ *
+ * Implements the signaling of an event, analogous to a 'promise'.
+ *
+ * Hardware backed events do not go through this object, and must be exposed directly as fences
+ * by vendors.
+ */
+class C2Event {
+public:
+    /**
+     * Returns a fence for this event.
+     */
+    C2Fence fence() const;
+
+    /**
+     * Signals (all) associated fence(s).
+     * This has no effect no effect if the event was already signaled or abandoned.
+     *
+     * \retval C2_OK            the fence(s) were successfully signaled
+     * \retval C2_BAD_STATE     the fence(s) have already been abandoned or merged (caller error)
+     * \retval C2_ALREADY_EXISTS the fence(s) have already been signaled (caller error)
+     * \retval C2_NO_PERMISSION no permission to signal the fence (unexpected - system)
+     * \retval C2_CORRUPTED     some unknown error prevented signaling the fence(s) (unexpected)
+     */
+    C2Error fire();
+
+    /**
+     * Trigger this event from the merging of the supplied fences. This means that it will be
+     * abandoned if any of these fences have been abandoned, and it will be fired if all of these
+     * fences have been signaled.
+     *
+     * \retval C2_OK            the merging was successfully done
+     * \retval C2_NO_MEMORY     not enough memory to perform the merging
+     * \retval C2_ALREADY_EXISTS    the fence have already been merged (caller error)
+     * \retval C2_BAD_STATE     the fence have already been signaled or abandoned (caller error)
+     * \retval C2_NO_PERMISSION no permission to merge the fence (unexpected - system)
+     * \retval C2_CORRUPTED     some unknown error prevented merging the fence(s) (unexpected)
+     */
+    C2Error merge(std::vector<C2Fence> fences);
+
+    /**
+     * Abandons the event and any associated fence(s).
+     * \note Call this to explicitly abandon an event before it is destructed to avoid a warning.
+     *
+     * This has no effect no effect if the event was already signaled or abandoned.
+     *
+     * \retval C2_OK            the fence(s) were successfully signaled
+     * \retval C2_BAD_STATE     the fence(s) have already been signaled or merged (caller error)
+     * \retval C2_ALREADY_EXISTS    the fence(s) have already been abandoned (caller error)
+     * \retval C2_NO_PERMISSION no permission to abandon the fence (unexpected - system)
+     * \retval C2_CORRUPTED     some unknown error prevented signaling the fence(s) (unexpected)
+     */
+    C2Error abandon();
+
+private:
+    class Impl;
+    std::shared_ptr<Impl> mImpl;
+};
+
+/// \addtogroup buf_internal Internal
+/// @{
+
+/**
+ * Interface for objects that encapsulate an updatable error value.
+ */
+struct _C2InnateError {
+    inline C2Error error() const { return mError; }
+
+protected:
+    _C2InnateError(C2Error error) : mError(error) { }
+
+    C2Error mError; // this error is updatable by the object
+};
+
+/// @}
+
+/**
+ * This is a utility template for objects protected by an acquire fence, so that errors during
+ * acquiring the object are propagated to the object itself.
+ */
+template<typename T>
+class C2Acquirable : public C2Fence {
+public:
+    /**
+     * Acquires the object protected by an acquire fence. Any errors during the mapping will be
+     * passed to the object.
+     *
+     * \return acquired object potentially invalidated if waiting for the fence failed.
+     */
+    T get();
+
+protected:
+    C2Acquirable(C2Error error, C2Fence fence, T t) : C2Fence(fence), mInitialError(error), mT(t) { }
+
+private:
+    C2Error mInitialError;
+    T mT; // TODO: move instead of copy
+};
+
+/// @}
+
+/// \defgroup linear Linear Data Blocks
+/// @{
+
+/**************************************************************************************************
+  LINEAR ASPECTS, BLOCKS AND VIEWS
+**************************************************************************************************/
+
+/**
+ * Common aspect for all objects that have a linear capacity.
+ */
+class _C2LinearCapacityAspect {
+/// \name Linear capacity interface
+/// @{
+public:
+    inline uint32_t capacity() const { return mCapacity; }
+
+protected:
+
+#if UINTPTR_MAX == 0xffffffff
+    static_assert(sizeof(size_t) == sizeof(uint32_t), "size_t is too big");
+#else
+    static_assert(sizeof(size_t) > sizeof(uint32_t), "size_t is too small");
+    // explicitly disable construction from size_t
+    inline explicit _C2LinearCapacityAspect(size_t capacity) = delete;
+#endif
+
+    inline explicit _C2LinearCapacityAspect(uint32_t capacity)
+      : mCapacity(capacity) { }
+
+    inline explicit _C2LinearCapacityAspect(const _C2LinearCapacityAspect *parent)
+        : mCapacity(parent == nullptr ? 0 : parent->capacity()) { }
+
+private:
+    const uint32_t mCapacity;
+/// @}
+};
+
+/**
+ * Aspect for objects that have a linear range.
+ *
+ * This class is copiable.
+ */
+class _C2LinearRangeAspect : public _C2LinearCapacityAspect {
+/// \name Linear range interface
+/// @{
+public:
+    inline uint32_t offset() const { return mOffset; }
+    inline uint32_t size() const { return mSize; }
+
+protected:
+    inline explicit _C2LinearRangeAspect(const _C2LinearCapacityAspect *parent)
+        : _C2LinearCapacityAspect(parent),
+          mOffset(0),
+          mSize(capacity()) { }
+
+    inline _C2LinearRangeAspect(const _C2LinearCapacityAspect *parent, size_t offset, size_t size)
+        : _C2LinearCapacityAspect(parent),
+          mOffset(c2_min(offset, capacity())),
+          mSize(c2_min(size, capacity() - mOffset)) { }
+
+    // subsection of the two [offset, offset + size] ranges
+    inline _C2LinearRangeAspect(const _C2LinearRangeAspect *parent, size_t offset, size_t size)
+        : _C2LinearCapacityAspect(parent == nullptr ? 0 : parent->capacity()),
+          mOffset(c2_min(c2_max(offset, parent == nullptr ? 0 : parent->offset()), capacity())),
+          mSize(c2_min(c2_min(size, parent == nullptr ? 0 : parent->size()), capacity() - mOffset)) { }
+
+private:
+    friend class _C2EditableLinearRange;
+    // invariants 0 <= mOffset <= mOffset + mSize <= capacity()
+    uint32_t mOffset;
+    uint32_t mSize;
+/// @}
+};
+
+/**
+ * Aspect for objects that have an editable linear range.
+ *
+ * This class is copiable.
+ */
+class _C2EditableLinearRange : public _C2LinearRangeAspect {
+protected:
+    inline explicit _C2EditableLinearRange(const _C2LinearCapacityAspect *parent)
+        : _C2LinearRangeAspect(parent) { }
+
+    inline _C2EditableLinearRange(const _C2LinearCapacityAspect *parent, size_t offset, size_t size)
+        : _C2LinearRangeAspect(parent, offset, size) { }
+
+    // subsection of the two [offset, offset + size] ranges
+    inline _C2EditableLinearRange(const _C2LinearRangeAspect *parent, size_t offset, size_t size)
+        : _C2LinearRangeAspect(parent, offset, size) { }
+
+/// \name Editable linear range interface
+/// @{
+
+    /**
+     * Sets the offset to |offset|, while trying to keep the end of the buffer unchanged (e.g.
+     * size will grow if offset is decreased, and may shrink if offset is increased.) Returns
+     * true if successful, which is equivalent to if 0 <= |offset| <= capacity().
+     *
+     * Note: setting offset and size will yield different result depending on the order of the
+     * operations. Always set offset first to ensure proper size.
+     */
+    inline bool setOffset(uint32_t offset) {
+        if (offset > capacity()) {
+            return false;
+        }
+
+        if (offset > mOffset + mSize) {
+            mSize = 0;
+        } else {
+            mSize = mOffset + mSize - offset;
+        }
+        mOffset = offset;
+        return true;
+    }
+    /**
+     * Sets the size to |size|. Returns true if successful, which is equivalent to
+     * if 0 <= |size| <= capacity() - offset().
+     *
+     * Note: setting offset and size will yield different result depending on the order of the
+     * operations. Always set offset first to ensure proper size.
+     */
+    inline bool setSize(uint32_t size) {
+        if (size > capacity() - mOffset) {
+            return false;
+        } else {
+            mSize = size;
+            return true;
+        }
+    }
+    /**
+     * Sets the offset to |offset| with best effort. Same as setOffset() except that offset will
+     * be clamped to the buffer capacity.
+     *
+     * Note: setting offset and size (even using best effort) will yield different result depending
+     * on the order of the operations. Always set offset first to ensure proper size.
+     */
+    inline void setOffset_be(uint32_t offset) {
+        if (offset > capacity()) {
+            offset = capacity();
+        }
+        if (offset > mOffset + mSize) {
+            mSize = 0;
+        } else {
+            mSize = mOffset + mSize - offset;
+        }
+        mOffset = offset;
+    }
+    /**
+     * Sets the size to |size| with best effort. Same as setSize() except that the selected region
+     * will be clamped to the buffer capacity (e.g. size is clamped to [0, capacity() - offset()]).
+     *
+     * Note: setting offset and size (even using best effort) will yield different result depending
+     * on the order of the operations. Always set offset first to ensure proper size.
+     */
+    inline void setSize_be(uint32_t size) {
+        mSize = std::min(size, capacity() - mOffset);
+    }
+/// @}
+};
+
+// ================================================================================================
+//  BLOCKS
+// ================================================================================================
+
+/**
+ * Blocks are sections of allocations. They can be either 1D or 2D.
+ */
+
+class C2LinearAllocation;
+
+class C2Block1D : public _C2LinearRangeAspect {
+public:
+    const C2Handle *handle() const;
+
+protected:
+    C2Block1D(std::shared_ptr<C2LinearAllocation> alloc);
+    C2Block1D(std::shared_ptr<C2LinearAllocation> alloc, size_t offset, size_t size);
+
+private:
+    class Impl;
+    std::shared_ptr<Impl> mImpl;
+};
+
+/**
+ * Read view provides read-only access for a linear memory segment.
+ *
+ * This class is copiable.
+ */
+class C2ReadView : public _C2LinearCapacityAspect {
+public:
+    /**
+     * \return pointer to the start of the block or nullptr on error.
+     */
+    const uint8_t *data();
+
+    /**
+     * Returns a portion of this view.
+     *
+     * \param offset  the start offset of the portion. \note This is clamped to the capacity of this
+     *              view.
+     * \param size    the size of the portion. \note This is clamped to the remaining data from offset.
+     *
+     * \return a read view containing a portion of this view
+     */
+    C2ReadView subView(size_t offset, size_t size) const;
+
+    /**
+     * \return error during the creation/mapping of this view.
+     */
+    C2Error error();
+
+private:
+    class Impl;
+    std::shared_ptr<Impl> mImpl;
+};
+
+/**
+ * Write view provides read/write access for a linear memory segment.
+ *
+ * This class is copiable. \todo movable only?
+ */
+class C2WriteView : public _C2EditableLinearRange {
+public:
+    /**
+     * Start of the block.
+     *
+     * \return pointer to the start of the block or nullptr on error.
+     */
+    uint8_t *base();
+
+    /**
+     * \return pointer to the block at the current offset or nullptr on error.
+     */
+    uint8_t *data();
+
+    /**
+     * \return error during the creation/mapping of this view.
+     */
+    C2Error error();
+
+private:
+    class Impl;
+    /// \todo should this be unique_ptr to make this movable only - to avoid inconsistent regions
+    /// between copies.
+    std::shared_ptr<Impl> mImpl;
+};
+
+/**
+ * A constant (read-only) linear block (portion of an allocation) with an acquire fence.
+ * Blocks are unmapped when created, and can be mapped into a read view on demand.
+ *
+ * This class is copiable and contains a reference to the allocation that it is based on.
+ */
+class C2ConstLinearBlock : public C2Block1D {
+public:
+    /**
+     * Maps this block into memory and returns a read view for it.
+     *
+     * \return a read view for this block.
+     */
+    C2Acquirable<C2ReadView> map() const;
+
+    /**
+     * Returns a portion of this block.
+     *
+     * \param offset  the start offset of the portion. \note This is clamped to the capacity of this
+     *              block.
+     * \param size    the size of the portion. \note This is clamped to the remaining data from offset.
+     *
+     * \return a constant linear block containing a portion of this block
+     */
+    C2ConstLinearBlock subBlock(size_t offset, size_t size) const;
+
+    /**
+     * Returns the acquire fence for this block.
+     *
+     * \return a fence that must be waited on before reading the block.
+     */
+    C2Fence fence() const { return mFence; }
+
+private:
+    C2Fence mFence;
+};
+
+/**
+ * Linear block is a writeable 1D block. Once written, it can be shared in whole or in parts with
+ * consumers/readers as read-only const linear block(s).
+ */
+class C2LinearBlock : public C2Block1D {
+public:
+    /**
+     * Maps this block into memory and returns a write view for it.
+     *
+     * \return a write view for this block.
+     */
+    C2Acquirable<C2WriteView> map();
+
+    /**
+     * Creates a read-only const linear block for a portion of this block; optionally protected
+     * by an acquire fence. There are two ways to use this:
+     *
+     * 1) share ready block after writing data into the block. In this case no fence shall be
+     *    supplied, and the block shall not be modified after calling this method.
+     * 2) share block metadata before actually (finishing) writing the data into the block. In
+     *    this case a fence must be supplied that will be triggered when the data is written.
+     *    The block shall be modified only until firing the event for the fence.
+     */
+    C2ConstLinearBlock share(size_t offset, size_t size, C2Fence fence);
+};
+
+/// @}
+
+/**************************************************************************************************
+  CIRCULAR BLOCKS AND VIEWS
+**************************************************************************************************/
+
+/// \defgroup circular Circular buffer support
+/// @{
+
+/**
+ * Circular blocks can be used to share data between a writer and a reader (and/or other consumers)-
+ * in a memory-efficient way by reusing a section of memory. Circular blocks are a bit more complex
+ * than single reader/single writer schemes to facilitate block-based consuming of data.
+ *
+ * They can operate in two modes:
+ *
+ * 1) one writer that creates blocks to be consumed (this model can be used by components)
+ *
+ * 2) one writer that writes continuously, and one reader that can creates blocks to be consumed
+ *    by further recipients (this model is used by the framework, and cannot be used by components.)
+ *
+ * Circular blocks have four segments with running pointers:
+ *  - reserved: data reserved and available for the writer
+ *  - committed: data committed by the writer and available to the reader (if present)
+ *  - used: data used by consumers (if present)
+ *  - available: unused data available to be reserved
+ */
+class C2CircularBlock : public C2Block1D {
+    // TODO: add methods
+
+private:
+    size_t mReserved __unused;   // end of reserved section
+    size_t mCommitted __unused;  // end of committed section
+    size_t mUsed __unused;       // end of used section
+    size_t mFree __unused;       // end of free section
+};
+
+class _C2CircularBlockSegment : public _C2LinearCapacityAspect {
+public:
+    /**
+     * Returns the available size for this segment.
+     *
+     * \return currently available size for this segment
+     */
+    size_t available() const;
+
+    /**
+     * Reserve some space for this segment from its current start.
+     *
+     * \param size    desired space in bytes
+     * \param fence   a pointer to an acquire fence. If non-null, the reservation is asynchronous and
+     *              a fence will be stored here that will be signaled when the reservation is
+     *              complete. If null, the reservation is synchronous.
+     *
+     * \retval C2_OK            the space was successfully reserved
+     * \retval C2_NO_MEMORY     the space requested cannot be reserved
+     * \retval C2_TIMED_OUT     the reservation timed out \todo when?
+     * \retval C2_CORRUPTED     some unknown error prevented reserving space. (unexpected)
+     */
+    C2Error reserve(size_t size, C2Fence *fence /* nullable */);
+
+    /**
+     * Abandons a portion of this segment. This will move to the beginning of this segment.
+     *
+     * \note This methods is only allowed if this segment is producing blocks.
+     *
+     * \param size    number of bytes to abandon
+     *
+     * \retval C2_OK            the data was successfully abandoned
+     * \retval C2_TIMED_OUT     the operation timed out (unexpected)
+     * \retval C2_CORRUPTED     some unknown error prevented abandoning the data (unexpected)
+     */
+    C2Error abandon(size_t size);
+
+    /**
+     * Share a portion as block(s) with consumers (these are moved to the used section).
+     *
+     * \note This methods is only allowed if this segment is producing blocks.
+     * \note Share does not move the beginning of the segment. (\todo add abandon/offset?)
+     *
+     * \param size    number of bytes to share
+     * \param fence   fence to be used for the section
+     * \param blocks  list where the blocks of the section are appended to
+     *
+     * \retval C2_OK            the portion was successfully shared
+     * \retval C2_NO_MEMORY     not enough memory to share the portion
+     * \retval C2_TIMED_OUT     the operation timed out (unexpected)
+     * \retval C2_CORRUPTED     some unknown error prevented sharing the data (unexpected)
+     */
+    C2Error share(size_t size, C2Fence fence, std::list<C2ConstLinearBlock> &blocks);
+
+    /**
+     * Returns the beginning offset of this segment from the start of this circular block.
+     *
+     * @return beginning offset
+     */
+    size_t begin();
+
+    /**
+     * Returns the end offset of this segment from the start of this circular block.
+     *
+     * @return end offset
+     */
+    size_t end();
+};
+
+/**
+ * A circular write-view is a dynamic mapped view for a segment of a circular block. Care must be
+ * taken when using this view so that only the section owned by the segment is modified.
+ */
+class C2CircularWriteView : public _C2LinearCapacityAspect {
+public:
+    /**
+     * Start of the circular block.
+     * \note the segment does not own this pointer.
+     *
+     * \return pointer to the start of the circular block or nullptr on error.
+     */
+    uint8_t *base();
+
+    /**
+     * \return error during the creation/mapping of this view.
+     */
+    C2Error error();
+};
+
+/**
+ * The writer of a circular buffer.
+ *
+ * Can commit data to a reader (not supported for components) OR share data blocks directly with a
+ * consumer.
+ *
+ * If a component supports outputting data into circular buffers, it must allocate a circular
+ * block and use a circular writer.
+ */
+class C2CircularWriter : public _C2CircularBlockSegment {
+public:
+    /**
+     * Commits a portion of this segment to the next segment. This moves the beginning of the
+     * segment.
+     *
+     * \param size    number of bytes to commit to the next segment
+     * \param fence   fence used for the commit (the fence must signal before the data is committed)
+     */
+    C2Error commit(size_t size, C2Fence fence);
+
+    /**
+     * Maps this block into memory and returns a write view for it.
+     *
+     * \return a write view for this block.
+     */
+    C2Acquirable<C2CircularWriteView> map();
+};
+
+/// @}
+
+/// \defgroup graphic Graphic Data Blocks
+/// @{
+
+/**
+ * Interface for objects that have a width and height (planar capacity).
+ */
+class _C2PlanarCapacityAspect {
+/// \name Planar capacity interface
+/// @{
+public:
+    inline uint32_t width() const { return mWidth; }
+    inline uint32_t height() const { return mHeight; }
+
+protected:
+    inline _C2PlanarCapacityAspect(uint32_t width, uint32_t height)
+      : mWidth(width), mHeight(height) { }
+
+    inline _C2PlanarCapacityAspect(const _C2PlanarCapacityAspect *parent)
+        : mWidth(parent == nullptr ? 0 : parent->width()),
+          mHeight(parent == nullptr ? 0 : parent->height()) { }
+
+private:
+    const uint32_t mWidth;
+    const uint32_t mHeight;
+/// @}
+};
+
+/**
+ * C2Rect: rectangle type with non-negative coordinates.
+ *
+ * \note This struct has public fields without getters/setters. All methods are inline.
+ */
+struct C2Rect {
+// public:
+    uint32_t mLeft;
+    uint32_t mTop;
+    uint32_t mWidth;
+    uint32_t mHeight;
+
+    inline C2Rect(uint32_t width, uint32_t height)
+        : C2Rect(width, height, 0, 0) { }
+
+    inline C2Rect(uint32_t width, uint32_t height, uint32_t left, uint32_t top)
+        : mLeft(left), mTop(top), mWidth(width), mHeight(height) { }
+
+    // utility methods
+
+    inline bool isEmpty() const {
+        return mWidth == 0 || mHeight == 0;
+    }
+
+    inline bool isValid() const {
+        return mLeft <= ~mWidth && mTop <= ~mHeight;
+    }
+
+    inline operator bool() const {
+        return isValid() && !isEmpty();
+    }
+
+    inline bool operator!() const {
+        return !bool(*this);
+    }
+
+    inline bool contains(const C2Rect &other) const {
+        if (!isValid() || !other.isValid()) {
+            return false;
+        } else if (other.isEmpty()) {
+            return true;
+        } else {
+            return mLeft <= other.mLeft && mTop <= other.mTop
+                    && mLeft + mWidth >= other.mLeft + other.mWidth
+                    && mTop + mHeight >= other.mTop + other.mHeight;
+        }
+    }
+
+    inline bool operator==(const C2Rect &other) const {
+        if (!isValid()) {
+            return !other.isValid();
+        } else if (isEmpty()) {
+            return other.isEmpty();
+        } else {
+            return mLeft == other.mLeft && mTop == other.mTop
+                    && mWidth == other.mWidth && mHeight == other.mHeight;
+        }
+    }
+
+    inline bool operator!=(const C2Rect &other) const {
+        return !operator==(other);
+    }
+
+    inline bool operator>=(const C2Rect &other) const {
+        return contains(other);
+    }
+
+    inline bool operator>(const C2Rect &other) const {
+        return contains(other) && !operator==(other);
+    }
+
+    inline bool operator<=(const C2Rect &other) const {
+        return other.contains(*this);
+    }
+
+    inline bool operator<(const C2Rect &other) const {
+        return other.contains(*this) && !operator==(other);
+    }
+};
+
+/**
+ * C2PlaneInfo: information on the layout of flexible planes.
+ *
+ * Public fields without getters/setters.
+ */
+struct C2PlaneInfo {
+// public:
+    enum Channel : uint32_t {
+        Y,
+        R,
+        G,
+        B,
+        A,
+        Cr,
+        Cb,
+    } mChannel;
+
+    int32_t mColInc;               // column increment in bytes. may be negative
+    int32_t mRowInc;               // row increment in bytes. may be negative
+    uint32_t mHorizSubsampling;    // subsampling compared to width
+    uint32_t mVertSubsampling;     // subsampling compared to height
+
+    uint32_t mBitDepth;
+    uint32_t mAllocatedDepth;
+
+    inline ssize_t minOffset(uint32_t width, uint32_t height) {
+        ssize_t offs = 0;
+        if (width > 0 && mColInc < 0) {
+            offs += mColInc * (ssize_t)(width - 1);
+        }
+        if (height > 0 && mRowInc < 0) {
+            offs += mRowInc * (ssize_t)(height - 1);
+        }
+        return offs;
+    }
+
+    inline ssize_t maxOffset(uint32_t width, uint32_t height, uint32_t allocatedDepth) {
+        ssize_t offs = (allocatedDepth + 7) >> 3;
+        if (width > 0 && mColInc > 0) {
+            offs += mColInc * (ssize_t)(width - 1);
+        }
+        if (height > 0 && mRowInc > 0) {
+            offs += mRowInc * (ssize_t)(height - 1);
+        }
+        return offs;
+    }
+};
+
+struct C2PlaneLayout {
+public:
+    enum Type : uint32_t {
+        MEDIA_IMAGE_TYPE_UNKNOWN = 0,
+        MEDIA_IMAGE_TYPE_YUV = 0x100,
+        MEDIA_IMAGE_TYPE_YUVA,
+        MEDIA_IMAGE_TYPE_RGB,
+        MEDIA_IMAGE_TYPE_RGBA,
+    };
+
+    Type mType;
+    uint32_t mNumPlanes;               // number of planes
+
+    enum PlaneIndex : uint32_t {
+        Y = 0,
+        U = 1,
+        V = 2,
+        R = 0,
+        G = 1,
+        B = 2,
+        A = 3,
+        MAX_NUM_PLANES = 4,
+    };
+
+    C2PlaneInfo mPlanes[MAX_NUM_PLANES];
+};
+
+/**
+ * Aspect for objects that have a planar section (crop rectangle).
+ *
+ * This class is copiable.
+ */
+class _C2PlanarSection : public _C2PlanarCapacityAspect {
+/// \name Planar section interface
+/// @{
+public:
+    // crop can be an empty rect, does not have to line up with subsampling
+    // NOTE: we do not support floating-point crop
+    inline const C2Rect crop() { return mCrop; }
+
+    /**
+     *  Sets crop to crop intersected with [(0,0) .. (width, height)]
+     */
+    inline void setCrop_be(const C2Rect &crop);
+
+    /**
+     * If crop is within the dimensions of this object, it sets crop to it.
+     *
+     * \return true iff crop is within the dimensions of this object
+     */
+    inline bool setCrop(const C2Rect &crop);
+
+private:
+    C2Rect mCrop;
+/// @}
+};
+
+class C2Block2D : public _C2PlanarSection {
+public:
+    const C2Handle *handle() const;
+
+private:
+    class Impl;
+    std::shared_ptr<Impl> mImpl;
+};
+
+/**
+ * Graphic view provides read or read-write access for a graphic block.
+ *
+ * This class is copiable.
+ *
+ * \note Due to the subsampling of graphic buffers, a read view must still contain a crop rectangle
+ * to ensure subsampling is followed. This results in nearly identical interface between read and
+ * write views, so C2GraphicView can encompass both of them.
+ */
+class C2GraphicView : public _C2PlanarSection {
+public:
+    /**
+     * \return pointer to the start of the block or nullptr on error.
+     */
+    const uint8_t *data() const;
+
+    /**
+     * \return pointer to the start of the block or nullptr on error.
+     */
+    uint8_t *data();
+
+    /**
+     * Returns a section of this view.
+     *
+     * \param rect    the dimension of the section. \note This is clamped to the crop of this view.
+     *
+     * \return a read view containing the requested section of this view
+     */
+    const C2GraphicView subView(const C2Rect &rect) const;
+    C2GraphicView subView(const C2Rect &rect);
+
+    /**
+     * \return error during the creation/mapping of this view.
+     */
+    C2Error error() const;
+
+private:
+    class Impl;
+    std::shared_ptr<Impl> mImpl;
+};
+
+/**
+ * A constant (read-only) graphic block (portion of an allocation) with an acquire fence.
+ * Blocks are unmapped when created, and can be mapped into a read view on demand.
+ *
+ * This class is copiable and contains a reference to the allocation that it is based on.
+ */
+class C2ConstGraphicBlock : public C2Block2D {
+public:
+    /**
+     * Maps this block into memory and returns a read view for it.
+     *
+     * \return a read view for this block.
+     */
+    C2Acquirable<const C2GraphicView> map() const;
+
+    /**
+     * Returns a section of this block.
+     *
+     * \param rect    the coordinates of the section. \note This is clamped to the crop rectangle of
+     *              this block.
+     *
+     * \return a constant graphic block containing a portion of this block
+     */
+    C2ConstGraphicBlock subBlock(const C2Rect &rect) const;
+
+    /**
+     * Returns the acquire fence for this block.
+     *
+     * \return a fence that must be waited on before reading the block.
+     */
+    C2Fence fence() const { return mFence; }
+
+private:
+    C2Fence mFence;
+};
+
+/**
+ * Graphic block is a writeable 2D block. Once written, it can be shared in whole or in part with
+ * consumers/readers as read-only const graphic block.
+ */
+class C2GraphicBlock : public C2Block2D {
+public:
+    /**
+     * Maps this block into memory and returns a write view for it.
+     *
+     * \return a write view for this block.
+     */
+    C2Acquirable<C2GraphicView> map();
+
+    /**
+     * Creates a read-only const linear block for a portion of this block; optionally protected
+     * by an acquire fence. There are two ways to use this:
+     *
+     * 1) share ready block after writing data into the block. In this case no fence shall be
+     *    supplied, and the block shall not be modified after calling this method.
+     * 2) share block metadata before actually (finishing) writing the data into the block. In
+     *    this case a fence must be supplied that will be triggered when the data is written.
+     *    The block shall be modified only until firing the event for the fence.
+     */
+    C2ConstGraphicBlock share(const C2Rect &crop, C2Fence fence);
+};
+
+/// @}
+
+/// \defgroup buffer_onj Buffer objects
+/// @{
+
+// ================================================================================================
+//  BUFFERS
+// ================================================================================================
+
+/// \todo: Do we still need this?
+///
+// There are 2 kinds of buffers: linear or graphic. Linear buffers can contain a single block, or
+// a list of blocks (LINEAR_CHUNKS). Support for list of blocks is optional, and can allow consuming
+// data from circular buffers or scattered data sources without extra memcpy. Currently, list of
+// graphic blocks is not supported.
+
+class C2LinearBuffer;   // read-write buffer
+class C2GraphicBuffer;  // read-write buffer
+class C2LinearChunksBuffer;
+
+/**
+ * C2BufferData: the main, non-meta data of a buffer. A buffer can contain either linear blocks
+ * or graphic blocks, and can contain either a single block or multiple blocks. This is determined
+ * by its type.
+ */
+class C2BufferData {
+public:
+    /**
+     *  The type of buffer data.
+     */
+    enum Type : uint32_t {
+        LINEAR,             ///< the buffer contains a single linear block
+        LINEAR_CHUNKS,      ///< the buffer contains one or more linear blocks
+        GRAPHIC,            ///< the buffer contains a single graphic block
+        GRAPHIC_CHUNKS,     ///< the buffer contains one of more graphic blocks
+    };
+
+    /**
+     * Gets the type of this buffer (data).
+     * \return the type of this buffer data.
+     */
+    Type type() const;
+
+    /**
+     * Gets the linear blocks of this buffer.
+     * \return a constant list of const linear blocks of this buffer.
+     * \retval empty list if this buffer does not contain linear block(s).
+     */
+    const std::list<C2ConstLinearBlock> linearBlocks() const;
+
+    /**
+     * Gets the graphic blocks of this buffer.
+     * \return a constant list of const graphic blocks of this buffer.
+     * \retval empty list if this buffer does not contain graphic block(s).
+     */
+    const std::list<C2ConstGraphicBlock> graphicBlocks() const;
+
+private:
+    class Impl;
+    std::shared_ptr<Impl> mImpl;
+
+protected:
+    // no public constructor
+    // C2BufferData(const std::shared_ptr<const Impl> &impl) : mImpl(impl) {}
+};
+
+/**
+ * C2Buffer: buffer base class. These are always used as shared_ptrs. Though the underlying buffer
+ * objects (native buffers, ion buffers, or dmabufs) are reference-counted by the system,
+ * C2Buffers hold only a single reference.
+ *
+ * These objects cannot be used on the stack.
+ */
+class C2Buffer {
+public:
+    /**
+     * Gets the buffer's data.
+     *
+     * \return the buffer's data.
+     */
+    const C2BufferData data() const;
+
+    /**
+     * These will still work if used in onDeathNotify.
+     */
+#if 0
+    inline std::shared_ptr<C2LinearBuffer> asLinearBuffer() const {
+        return mType == LINEAR ? std::shared_ptr::reinterpret_cast<C2LinearBuffer>(this) : nullptr;
+    }
+
+    inline std::shared_ptr<C2GraphicBuffer> asGraphicBuffer() const {
+        return mType == GRAPHIC ? std::shared_ptr::reinterpret_cast<C2GraphicBuffer>(this) : nullptr;
+    }
+
+    inline std::shared_ptr<C2CircularBuffer> asCircularBuffer() const {
+        return mType == CIRCULAR ? std::shared_ptr::reinterpret_cast<C2CircularBuffer>(this) : nullptr;
+    }
+#endif
+
+    ///@name Pre-destroy notification handling
+    ///@{
+
+    /**
+     * Register for notification just prior to the destruction of this object.
+     */
+    typedef void (*OnDestroyNotify) (const C2Buffer *buf, void *arg);
+
+    /**
+     * Registers for a pre-destroy notification. This is called just prior to the destruction of
+     * this buffer (when this buffer is no longer valid.)
+     *
+     * \param onDestroyNotify   the notification callback
+     * \param arg               an arbitrary parameter passed to the callback
+     *
+     * \retval C2_OK        the registration was successful.
+     * \retval C2_DUPLICATE a notification was already registered for this callback and argument
+     * \retval C2_NO_MEMORY not enough memory to register for this callback
+     * \retval C2_CORRUPTED an unknown error prevented the registration (unexpected)
+     */
+    C2Error registerOnDestroyNotify(OnDestroyNotify *onDestroyNotify, void *arg = nullptr);
+
+    /**
+     * Unregisters a previously registered pre-destroy notification.
+     *
+     * \param onDestroyNotify   the notification callback
+     * \param arg               an arbitrary parameter passed to the callback
+     *
+     * \retval C2_OK        the unregistration was successful.
+     * \retval C2_NOT_FOUND the notification was not found
+     * \retval C2_CORRUPTED an unknown error prevented the registration (unexpected)
+     */
+    C2Error unregisterOnDestroyNotify(OnDestroyNotify *onDestroyNotify, void *arg = nullptr);
+
+    ///@}
+
+    virtual ~C2Buffer() = default;
+
+    ///@name Buffer-specific arbitrary metadata handling
+    ///@{
+
+    /**
+     * Gets the list of metadata associated with this buffer.
+     *
+     * \return a constant list of info objects associated with this buffer.
+     */
+    const std::list<std::shared_ptr<const C2Info>> infos() const;
+
+    /**
+     * Attaches (or updates) an (existing) metadata for this buffer.
+     * If the metadata is stream specific, the stream information will be reset.
+     *
+     * \param info Metadata to update
+     *
+     * \retval C2_OK        the metadata was successfully attached/updated.
+     * \retval C2_NO_MEMORY not enough memory to attach the metadata (this return value is not
+     *                      used if the same kind of metadata is already attached to the buffer).
+     */
+    C2Error setInfo(const std::shared_ptr<C2Info> &info);
+
+    /**
+     * Checks if there is a certain type of metadata attached to this buffer.
+     *
+     * \param index the parameter type of the metadata
+     *
+     * \return true iff there is a metadata with the parameter type attached to this buffer.
+     */
+    bool hasInfo(C2Param::Type index) const;
+    std::shared_ptr<C2Info> removeInfo(C2Param::Type index) const;
+    ///@}
+
+protected:
+    // no public constructor
+    inline C2Buffer() = default;
+
+private:
+//    Type _mType;
+};
+
+/**
+ * An extension of C2Info objects that can contain arbitrary buffer data.
+ *
+ * \note This object is not describable and contains opaque data.
+ */
+class C2InfoBuffer {
+public:
+    /**
+     * Gets the index of this info object.
+     *
+     * \return the parameter index.
+     */
+    const C2Param::Index index() const;
+
+    /**
+     * Gets the buffer's data.
+     *
+     * \return the buffer's data.
+     */
+    const C2BufferData data() const;
+};
+
+/// @}
+
+/**************************************************************************************************
+  ALLOCATIONS
+**************************************************************************************************/
+
+/// \defgroup allocator Allocation and memory placement
+/// @{
+
+/**
+ * Buffer/memory usage bits. These are used by the allocators to select optimal memory type/pool and
+ * buffer layout.
+ *
+ * \note This struct has public fields without getters/setters. All methods are inline.
+ */
+struct C2MemoryUsage {
+// public:
+    // TODO: match these to gralloc1.h
+    enum Consumer : uint64_t {
+        kSoftwareRead        = GRALLOC_USAGE_SW_READ_OFTEN,
+        kRenderScriptRead    = GRALLOC_USAGE_RENDERSCRIPT,
+        kTextureRead         = GRALLOC_USAGE_HW_TEXTURE,
+        kHardwareComposer    = GRALLOC_USAGE_HW_COMPOSER,
+        kHardwareEncoder     = GRALLOC_USAGE_HW_VIDEO_ENCODER,
+        kProtectedRead       = GRALLOC_USAGE_PROTECTED,
+    };
+
+    enum Producer : uint64_t {
+        kSoftwareWrite       = GRALLOC_USAGE_SW_WRITE_OFTEN,
+        kRenderScriptWrite   = GRALLOC_USAGE_RENDERSCRIPT,
+        kTextureWrite        = GRALLOC_USAGE_HW_RENDER,
+        kCompositionTarget   = GRALLOC_USAGE_HW_COMPOSER | GRALLOC_USAGE_HW_RENDER,
+        kHardwareDecoder     = GRALLOC_USAGE_HW_VIDEO_ENCODER,
+        kProtectedWrite      = GRALLOC_USAGE_PROTECTED,
+    };
+
+    uint64_t mConsumer; // e.g. input
+    uint64_t mProducer; // e.g. output
+};
+
+/**
+ * \ingroup linear allocator
+ * 1D allocation interface.
+ */
+class C2LinearAllocation : public _C2LinearCapacityAspect {
+public:
+    /**
+     * Maps a portion of an allocation starting from |offset| with |size| into local process memory.
+     * Stores the starting address into |addr|, or NULL if the operation was unsuccessful.
+     * |fenceFd| is a file descriptor referring to an acquire sync fence object. If it is already
+     * safe to access the buffer contents, then -1.
+     *
+     * \param offset          starting position of the portion to be mapped (this does not have to
+     *                      be page aligned)
+     * \param size            size of the portion to be mapped (this does not have to be page
+     *                      aligned)
+     * \param usage           the desired usage. \todo this must be kSoftwareRead and/or
+     *                      kSoftwareWrite.
+     * \param fenceFd         a pointer to a file descriptor if an async mapping is requested. If
+     *                      not-null, and acquire fence FD will be stored here on success, or -1
+     *                      on failure. If null, the mapping will be synchronous.
+     * \param addr            a pointer to where the starting address of the mapped portion will be
+     *                      stored. On failure, nullptr will be stored here.
+     *
+     * \todo Only one portion can be mapped at the same time - this is true for gralloc, but there
+     *       is no need for this for 1D buffers.
+     * \todo Do we need to support sync operation as we could just wait for the fence?
+     *
+     * \retval C2_OK        the operation was successful
+     * \retval C2_NO_PERMISSION no permission to map the portion
+     * \retval C2_TIMED_OUT the operation timed out
+     * \retval C2_NO_MEMORY not enough memory to complete the operation
+     * \retval C2_BAD_VALUE the parameters (offset/size) are invalid or outside the allocation, or
+     *                      the usage flags are invalid (caller error)
+     * \retval C2_CORRUPTED some unknown error prevented the operation from completing (unexpected)
+     */
+    virtual C2Error map(
+            size_t offset, size_t size, C2MemoryUsage usage, int *fenceFd /* nullable */,
+            void **addr /* nonnull */) = 0;
+
+    /**
+     * Unmaps a portion of an allocation at |addr| with |size|. These must be parameters previously
+     * passed to |map|; otherwise, this operation is a no-op.
+     *
+     * \param addr            starting address of the mapped region
+     * \param size            size of the mapped region
+     * \param fenceFd         a pointer to a file descriptor if an async unmapping is requested. If
+     *                      not-null, a release fence FD will be stored here on success, or -1
+     *                      on failure. This fence signals when the original allocation contains
+     *                      any changes that happened to the mapped region. If null, the unmapping
+     *                      will be synchronous.
+     *
+     * \retval C2_OK        the operation was successful
+     * \retval C2_TIMED_OUT the operation timed out
+     * \retval C2_BAD_VALUE the parameters (addr/size) do not correspond to previously mapped
+     *                      regions (caller error)
+     * \retval C2_CORRUPTED some unknown error prevented the operation from completing (unexpected)
+     * \retval C2_NO_PERMISSION no permission to unmap the portion (unexpected - system)
+     */
+    virtual C2Error unmap(void *addr, size_t size, int *fenceFd /* nullable */) = 0;
+
+    /**
+     * Returns true if this is a valid allocation.
+     *
+     * \todo remove?
+     */
+    virtual bool isValid() const = 0;
+
+    /**
+     * Returns a pointer to the allocation handle.
+     */
+    virtual const C2Handle *handle() const = 0;
+
+    /**
+     * Returns true if this is the same allocation as |other|.
+     */
+    virtual bool equals(const std::shared_ptr<C2LinearAllocation> &other) const = 0;
+
+protected:
+    // \todo should we limit allocation directly?
+    C2LinearAllocation(size_t capacity) : _C2LinearCapacityAspect(c2_min(capacity, UINT32_MAX)) {}
+    virtual ~C2LinearAllocation() = default;
+};
+
+/**
+ * \ingroup graphic allocator
+ * 2D allocation interface.
+ */
+class C2GraphicAllocation : public _C2PlanarCapacityAspect {
+public:
+    /**
+     * Maps a rectangular section (as defined by |rect|) of a 2D allocation into local process
+     * memory for flexible access. On success, it fills out |layout| with the plane specifications
+     * and fills the |addr| array with pointers to the first byte of the top-left pixel of each
+     * plane used. Otherwise, it leaves |layout| and |addr| untouched. |fenceFd| is a file
+     * descriptor referring to an acquire sync fence object. If it is already safe to access the
+     * buffer contents, then -1.
+     *
+     * \note Only one portion of the graphic allocation can be mapped at the same time. (This is
+     * from gralloc1 limitation.)
+     *
+     * \param rect            section to be mapped (this does not have to be aligned)
+     * \param usage           the desired usage. \todo this must be kSoftwareRead and/or
+     *                      kSoftwareWrite.
+     * \param fenceFd         a pointer to a file descriptor if an async mapping is requested. If
+     *                      not-null, and acquire fence FD will be stored here on success, or -1
+     *                      on failure. If null, the mapping will be synchronous.
+     * \param layout          a pointer to where the mapped planes' descriptors will be
+     *                      stored. On failure, nullptr will be stored here.
+     *
+     * \todo Do we need to support sync operation as we could just wait for the fence?
+     *
+     * \retval C2_OK        the operation was successful
+     * \retval C2_NO_PERMISSION no permission to map the section
+     * \retval C2_ALREADY_EXISTS there is already a mapped region (caller error)
+     * \retval C2_TIMED_OUT the operation timed out
+     * \retval C2_NO_MEMORY not enough memory to complete the operation
+     * \retval C2_BAD_VALUE the parameters (rect) are invalid or outside the allocation, or the
+     *                      usage flags are invalid (caller error)
+     * \retval C2_CORRUPTED some unknown error prevented the operation from completing (unexpected)
+
+     */
+    virtual C2Error map(
+            C2Rect rect, C2MemoryUsage usage, int *fenceFd,
+            // TODO: return <addr, size> buffers with plane sizes
+            C2PlaneLayout *layout /* nonnull */, uint8_t **addr /* nonnull */) = 0;
+
+    /**
+     * Unmaps the last mapped rectangular section.
+     *
+     * \param fenceFd         a pointer to a file descriptor if an async unmapping is requested. If
+     *                      not-null, a release fence FD will be stored here on success, or -1
+     *                      on failure. This fence signals when the original allocation contains
+     *                      any changes that happened to the mapped section. If null, the unmapping
+     *                      will be synchronous.
+     *
+     * \retval C2_OK        the operation was successful
+     * \retval C2_TIMED_OUT the operation timed out
+     * \retval C2_NOT_FOUND there is no mapped region (caller error)
+     * \retval C2_CORRUPTED some unknown error prevented the operation from completing (unexpected)
+     * \retval C2_NO_PERMISSION no permission to unmap the section (unexpected - system)
+     */
+    virtual C2Error unmap(C2Fence *fenceFd /* nullable */) = 0;
+
+    /**
+     * Returns true if this is a valid allocation.
+     *
+     * \todo remove?
+     */
+    virtual bool isValid() const = 0;
+
+    /**
+     * Returns a pointer to the allocation handle.
+     */
+    virtual const C2Handle *handle() const = 0;
+
+    /**
+     * Returns true if this is the same allocation as |other|.
+     */
+    virtual bool equals(const std::shared_ptr<const C2GraphicAllocation> &other) = 0;
+
+protected:
+    virtual ~C2GraphicAllocation();
+};
+
+/**
+ *  Allocators are used by the framework to allocate memory (allocations) for buffers. They can
+ *  support either 1D or 2D allocations.
+ *
+ *  \note In theory they could support both, but in practice, we will use only one or the other.
+ *
+ *  Never constructed on stack.
+ *
+ *  Allocators are provided by vendors.
+ */
+class C2Allocator {
+public:
+    /**
+     * Allocates a 1D allocation of given |capacity| and |usage|. If successful, the allocation is
+     * stored in |allocation|. Otherwise, |allocation| is set to 'nullptr'.
+     *
+     * \param capacity        the size of requested allocation (the allocation could be slightly
+     *                      larger, e.g. to account for any system-required alignment)
+     * \param usage           the memory usage info for the requested allocation. \note that the
+     *                      returned allocation may be later used/mapped with different usage.
+     *                      The allocator should layout the buffer to be optimized for this usage,
+     *                      but must support any usage. One exception: protected buffers can
+     *                      only be used in a protected scenario.
+     * \param allocation      pointer to where the allocation shall be stored on success. nullptr
+     *                      will be stored here on failure
+     *
+     * \retval C2_OK        the allocation was successful
+     * \retval C2_NO_MEMORY not enough memory to complete the allocation
+     * \retval C2_TIMED_OUT the allocation timed out
+     * \retval C2_NO_PERMISSION     no permission to complete the allocation
+     * \retval C2_BAD_VALUE capacity or usage are not supported (invalid) (caller error)
+     * \retval C2_UNSUPPORTED       this allocator does not support 1D allocations
+     * \retval C2_CORRUPTED some unknown, unrecoverable error occured during allocation (unexpected)
+     */
+    virtual C2Error allocateLinearBuffer(
+            uint32_t capacity __unused, C2MemoryUsage usage __unused,
+            std::shared_ptr<C2LinearAllocation> *allocation /* nonnull */) {
+        *allocation = nullptr;
+        return C2_UNSUPPORTED;
+    }
+
+    /**
+     * (Re)creates a 1D allocation from a native |handle|. If successful, the allocation is stored
+     * in |allocation|. Otherwise, |allocation| is set to 'nullptr'.
+     *
+     * \param handle      the handle for the existing allocation
+     * \param allocation  pointer to where the allocation shall be stored on success. nullptr
+     *                  will be stored here on failure
+     *
+     * \retval C2_OK        the allocation was recreated successfully
+     * \retval C2_NO_MEMORY not enough memory to recreate the allocation
+     * \retval C2_TIMED_OUT the recreation timed out (unexpected)
+     * \retval C2_NO_PERMISSION     no permission to recreate the allocation
+     * \retval C2_BAD_VALUE invalid handle (caller error)
+     * \retval C2_UNSUPPORTED       this allocator does not support 1D allocations
+     * \retval C2_CORRUPTED some unknown, unrecoverable error occured during allocation (unexpected)
+     */
+    virtual C2Error recreateLinearBuffer(
+            const C2Handle *handle __unused,
+            std::shared_ptr<C2LinearAllocation> *allocation /* nonnull */) {
+        *allocation = nullptr;
+        return C2_UNSUPPORTED;
+    }
+
+    /**
+     * Allocates a 2D allocation of given |width|, |height|, |format| and |usage|. If successful,
+     * the allocation is stored in |allocation|. Otherwise, |allocation| is set to 'nullptr'.
+     *
+     * \param width           the width of requested allocation (the allocation could be slightly
+     *                      larger, e.g. to account for any system-required alignment)
+     * \param height          the height of requested allocation (the allocation could be slightly
+     *                      larger, e.g. to account for any system-required alignment)
+     * \param format          the pixel format of requested allocation. This could be a vendor
+     *                      specific format.
+     * \param usage           the memory usage info for the requested allocation. \note that the
+     *                      returned allocation may be later used/mapped with different usage.
+     *                      The allocator should layout the buffer to be optimized for this usage,
+     *                      but must support any usage. One exception: protected buffers can
+     *                      only be used in a protected scenario.
+     * \param allocation      pointer to where the allocation shall be stored on success. nullptr
+     *                      will be stored here on failure
+     *
+     * \retval C2_OK        the allocation was successful
+     * \retval C2_NO_MEMORY not enough memory to complete the allocation
+     * \retval C2_TIMED_OUT the allocation timed out
+     * \retval C2_NO_PERMISSION     no permission to complete the allocation
+     * \retval C2_BAD_VALUE width, height, format or usage are not supported (invalid) (caller error)
+     * \retval C2_UNSUPPORTED       this allocator does not support 2D allocations
+     * \retval C2_CORRUPTED some unknown, unrecoverable error occured during allocation (unexpected)
+     */
+    virtual C2Error allocateGraphicBuffer(
+            uint32_t width __unused, uint32_t height __unused, uint32_t format __unused,
+            C2MemoryUsage usage __unused,
+            std::shared_ptr<C2GraphicAllocation> *allocation /* nonnull */) {
+        *allocation = nullptr;
+        return C2_UNSUPPORTED;
+    }
+
+    /**
+     * (Re)creates a 2D allocation from a native handle.  If successful, the allocation is stored
+     * in |allocation|. Otherwise, |allocation| is set to 'nullptr'.
+     *
+     * \param handle      the handle for the existing allocation
+     * \param allocation  pointer to where the allocation shall be stored on success. nullptr
+     *                  will be stored here on failure
+     *
+     * \retval C2_OK        the allocation was recreated successfully
+     * \retval C2_NO_MEMORY not enough memory to recreate the allocation
+     * \retval C2_TIMED_OUT the recreation timed out (unexpected)
+     * \retval C2_NO_PERMISSION     no permission to recreate the allocation
+     * \retval C2_BAD_VALUE invalid handle (caller error)
+     * \retval C2_UNSUPPORTED       this allocator does not support 2D allocations
+     * \retval C2_CORRUPTED some unknown, unrecoverable error occured during recreation (unexpected)
+     */
+    virtual C2Error recreateGraphicBuffer(
+            const C2Handle *handle __unused,
+            std::shared_ptr<C2GraphicAllocation> *allocation /* nonnull */) {
+        *allocation = nullptr;
+        return C2_UNSUPPORTED;
+    }
+
+protected:
+    C2Allocator() = default;
+
+    virtual ~C2Allocator() = default;
+};
+
+/**
+ *  Block allocators are used by components to allocate memory for output buffers. They can
+ *  support either linear (1D), circular (1D) or graphic (2D) allocations.
+ *
+ *  Never constructed on stack.
+ *
+ *  Block allocators are provided by the framework.
+ */
+class C2BlockAllocator {
+public:
+    /**
+     * Allocates a linear writeable block of given |capacity| and |usage|. If successful, the
+     * block is stored in |block|. Otherwise, |block| is set to 'nullptr'.
+     *
+     * \param capacity        the size of requested block.
+     * \param usage           the memory usage info for the requested allocation. \note that the
+     *                      returned allocation may be later used/mapped with different usage.
+     *                      The allocator shall lay out the buffer to be optimized for this usage,
+     *                      but must support any usage. One exception: protected buffers can
+     *                      only be used in a protected scenario.
+     * \param block      pointer to where the allocated block shall be stored on success. nullptr
+     *                      will be stored here on failure
+     *
+     * \retval C2_OK        the allocation was successful
+     * \retval C2_NO_MEMORY not enough memory to complete the allocation
+     * \retval C2_TIMED_OUT the allocation timed out
+     * \retval C2_NO_PERMISSION     no permission to complete the allocation
+     * \retval C2_BAD_VALUE capacity or usage are not supported (invalid) (caller error)
+     * \retval C2_UNSUPPORTED       this allocator does not support linear allocations
+     * \retval C2_CORRUPTED some unknown, unrecoverable error occured during allocation (unexpected)
+     */
+    virtual C2Error allocateLinearBlock(
+            uint32_t capacity __unused, C2MemoryUsage usage __unused,
+            std::shared_ptr<C2LinearBlock> *block /* nonnull */) {
+        *block = nullptr;
+        return C2_UNSUPPORTED;
+    }
+
+    /**
+     * Allocates a circular writeable block of given |capacity| and |usage|. If successful, the
+     * block is stored in |block|. Otherwise, |block| is set to 'nullptr'.
+     *
+     * \param capacity        the size of requested circular block. (the allocation could be slightly
+     *                      larger, e.g. to account for any system-required alignment)
+     * \param usage           the memory usage info for the requested allocation. \note that the
+     *                      returned allocation may be later used/mapped with different usage.
+     *                      The allocator shall lay out the buffer to be optimized for this usage,
+     *                      but must support any usage. One exception: protected buffers can
+     *                      only be used in a protected scenario.
+     * \param block      pointer to where the allocated block shall be stored on success. nullptr
+     *                      will be stored here on failure
+     *
+     * \retval C2_OK            the allocation was successful
+     * \retval C2_NO_MEMORY     not enough memory to complete the allocation
+     * \retval C2_TIMED_OUT     the allocation timed out
+     * \retval C2_NO_PERMISSION     no permission to complete the allocation
+     * \retval C2_BAD_VALUE     capacity or usage are not supported (invalid) (caller error)
+     * \retval C2_UNSUPPORTED   this allocator does not support circular allocations
+     * \retval C2_CORRUPTED     some unknown, unrecoverable error occured during allocation (unexpected)
+     */
+    virtual C2Error allocateCircularBlock(
+            uint32_t capacity __unused, C2MemoryUsage usage __unused,
+            std::shared_ptr<C2CircularBlock> *block /* nonnull */) {
+        *block = nullptr;
+        return C2_UNSUPPORTED;
+    }
+
+    /**
+     * Allocates a 2D graphic block of given |width|, |height|, |format| and |usage|. If successful,
+     * the allocation is stored in |block|. Otherwise, |block| is set to 'nullptr'.
+     *
+     * \param width           the width of requested allocation (the allocation could be slightly
+     *                      larger, e.g. to account for any system-required alignment)
+     * \param height          the height of requested allocation (the allocation could be slightly
+     *                      larger, e.g. to account for any system-required alignment)
+     * \param format          the pixel format of requested allocation. This could be a vendor
+     *                      specific format.
+     * \param usage           the memory usage info for the requested allocation. \note that the
+     *                      returned allocation may be later used/mapped with different usage.
+     *                      The allocator should layout the buffer to be optimized for this usage,
+     *                      but must support any usage. One exception: protected buffers can
+     *                      only be used in a protected scenario.
+     * \param block      pointer to where the allocation shall be stored on success. nullptr
+     *                      will be stored here on failure
+     *
+     * \retval C2_OK            the allocation was successful
+     * \retval C2_NO_MEMORY     not enough memory to complete the allocation
+     * \retval C2_TIMED_OUT     the allocation timed out
+     * \retval C2_NO_PERMISSION     no permission to complete the allocation
+     * \retval C2_BAD_VALUE     width, height, format or usage are not supported (invalid) (caller error)
+     * \retval C2_UNSUPPORTED   this allocator does not support 2D allocations
+     * \retval C2_CORRUPTED     some unknown, unrecoverable error occured during allocation (unexpected)
+     */
+    virtual C2Error allocateGraphicBlock(
+            uint32_t width __unused, uint32_t height __unused, uint32_t format __unused,
+            C2MemoryUsage usage __unused,
+            std::shared_ptr<C2GraphicBlock> *block /* nonnull */) {
+        *block = nullptr;
+        return C2_UNSUPPORTED;
+    }
+
+protected:
+    C2BlockAllocator() = default;
+
+    virtual ~C2BlockAllocator() = default;
+};
+
+/// @}
+
+/// \cond INTERNAL
+
+/// \todo These are no longer used
+
+/// \addtogroup linear
+/// @{
+
+/** \deprecated */
+class C2LinearBuffer
+    : public C2Buffer, public _C2LinearRangeAspect,
+      public std::enable_shared_from_this<C2LinearBuffer> {
+public:
+    /** \todo what is this? */
+    const C2Handle *handle() const;
+
+protected:
+    inline C2LinearBuffer(const C2ConstLinearBlock &block);
+
+private:
+    class Impl;
+    Impl *mImpl;
+};
+
+class C2ReadCursor;
+
+class C2WriteCursor {
+public:
+    uint32_t remaining() const; // remaining data to be read
+    void commit(); // commits the current position. discard data before current position
+    void reset() const;  // resets position to the last committed position
+    // slices off at most |size| bytes, and moves cursor ahead by the number of bytes
+    // sliced off.
+    C2ReadCursor slice(uint32_t size) const;
+    // slices off at most |size| bytes, and moves cursor ahead by the number of bytes
+    // sliced off.
+    C2WriteCursor reserve(uint32_t size);
+    // bool read(T&);
+    // bool write(T&);
+    C2Fence waitForSpace(uint32_t size);
+};
+
+/// @}
+
+/// \addtogroup graphic
+/// @{
+
+struct C2ColorSpace {
+//public:
+    enum Standard {
+        BT601,
+        BT709,
+        BT2020,
+        // TODO
+    };
+
+    enum Range {
+        LIMITED,
+        FULL,
+        // TODO
+    };
+
+    enum TransferFunction {
+        BT709Transfer,
+        BT2020Transfer,
+        HybridLogGamma2,
+        HybridLogGamma4,
+        // TODO
+    };
+};
+
+/** \deprecated */
+class C2GraphicBuffer : public C2Buffer {
+public:
+    // constant attributes
+    inline uint32_t width() const  { return mWidth; }
+    inline uint32_t height() const { return mHeight; }
+    inline uint32_t format() const { return mFormat; }
+    inline const C2MemoryUsage usage() const { return mUsage; }
+
+    // modifiable attributes
+
+
+    virtual const C2ColorSpace colorSpace() const = 0;
+    // best effort
+    virtual void setColorSpace_be(const C2ColorSpace &colorSpace) = 0;
+    virtual bool setColorSpace(const C2ColorSpace &colorSpace) = 0;
+
+    const C2Handle *handle() const;
+
+protected:
+    uint32_t mWidth;
+    uint32_t mHeight;
+    uint32_t mFormat;
+    C2MemoryUsage mUsage;
+
+    class Impl;
+    Impl *mImpl;
+};
+
+/// @}
+
+/// \endcond
+
+/// @}
+
+}  // namespace android
+
+#endif  // C2BUFFER_H_
diff --git a/media/libstagefright/codec2/include/C2Component.h b/media/libstagefright/codec2/include/C2Component.h
new file mode 100644
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--- /dev/null
+++ b/media/libstagefright/codec2/include/C2Component.h
@@ -0,0 +1,685 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef C2COMPONENT_H_
+
+#define C2COMPONENT_H_
+
+#include <stdbool.h>
+#include <stdint.h>
+
+#include <list>
+#include <memory>
+#include <vector>
+#include <functional>
+
+#include <C2Param.h>
+#include <C2Work.h>
+
+namespace android {
+
+/// \defgroup components Components
+/// @{
+
+class C2Component;
+
+class C2ComponentListener {
+public:
+    virtual void onWorkDone(std::weak_ptr<C2Component> component,
+                            std::vector<std::unique_ptr<C2Work>> workItems) = 0;
+
+    virtual void onTripped(std::weak_ptr<C2Component> component,
+                           std::vector<std::shared_ptr<C2SettingResult>> settingResult) = 0;
+
+    virtual void onError(std::weak_ptr<C2Component> component,
+                         uint32_t errorCode) = 0;
+
+    // virtual void onTunnelReleased(<from>, <to>) = 0;
+
+    // virtual void onComponentReleased(<id>) = 0;
+
+protected:
+    virtual ~C2ComponentListener();
+};
+
+/**
+ * Component interface object. This object contains all of the configuration of a potential or
+ * actual component. It can be created and used independently of an actual C2Component instance to
+ * query support and parameters for various component settings and configurations for a potential
+ * component. Actual components also expose this interface.
+ */
+
+class C2ComponentInterface {
+public:
+    // ALWAYS AVAILABLE METHODS
+    // =============================================================================================
+
+    /**
+     * Returns the name of this component or component interface object.
+     * This is a unique name for this component or component interface 'class'; however, multiple
+     * instances of this component SHALL have the same name.
+     *
+     * This method MUST be supported in any state. This call does not change the state nor the
+     * internal states of the component.
+     *
+     * This method MUST be "non-blocking" and return within 1ms.
+     *
+     * \return the name of this component or component interface object.
+     * \retval an empty string if there was not enough memory to allocate the actual name.
+     */
+    virtual C2String getName() const = 0;
+
+    /**
+     * Returns a unique ID for this component or interface object.
+     * This ID is used as work targets, unique work IDs, and when configuring tunneling.
+     *
+     * This method MUST be supported in any state. This call does not change the state nor the
+     * internal states of the component.
+     *
+     * This method MUST be "non-blocking" and return within 1ms.
+     *
+     * \return a unique node ID for this component or component interface instance.
+     */
+    virtual node_id getId() const = 0;
+
+    /**
+     * Queries a set of parameters from the component or interface object.
+     * Querying is performed at best effort: the component SHALL query all supported parameters and
+     * skip unsupported ones, or heap allocated parameters that could not be allocated. Any errors
+     * are communicated in the return value. Additionally, preallocated (e.g. stack) parameters that
+     * could not be queried are invalidated. Parameters to be allocated on the heap are omitted from
+     * the result.
+     *
+     * \note Parameter values do not depend on the order of query.
+     *
+     * \todo This method cannot be used to query info-buffers. Is that a problem?
+     *
+     * This method MUST be supported in any state. This call does not change the state nor the
+     * internal states of the component.
+     *
+     * This method MUST be "non-blocking" and return within 1ms.
+     *
+     * \param[in,out] stackParams   a list of params queried. These are initialized specific to each
+     *                      setting; e.g. size and index are set and rest of the members are
+     *                      cleared.
+     *                      \note Flexible settings that are of incorrect size will be invalidated.
+     * \param[in] heapParamIndices a vector of param indices for params to be queried and returned on the
+     *                      heap. These parameters will be returned in heapParams. Unsupported param
+     *                      indices will be ignored.
+     * \param[out] heapParams    a list of params where to which the supported heap parameters will be
+     *                      appended in the order they appear in heapParamIndices.
+     *
+     * \retval C2_OK        all parameters could be queried
+     * \retval C2_BAD_INDEX all supported parameters could be queried, but some parameters were not
+     *                      supported
+     * \retval C2_NO_MEMORY could not allocate memory for a supported parameter
+     * \retval C2_CORRUPTED some unknown error prevented the querying of the parameters
+     *                      (unexpected)
+     */
+    virtual status_t query_nb(
+        const std::vector<C2Param* const> &stackParams,
+        const std::vector<C2Param::Index> &heapParamIndices,
+        std::vector<std::unique_ptr<C2Param>>* const heapParams) const = 0;
+
+    /**
+     * Sets a set of parameters for the component or interface object.
+     * Tuning is performed at best effort: the component SHALL update all supported configuration at
+     * best effort (unless configured otherwise) and skip unsupported ones. Any errors are
+     * communicated in the return value and in |failures|.
+     *
+     * \note Parameter tuning DOES depend on the order of the tuning parameters. E.g. some parameter
+     * update may allow some subsequent parameter update.
+     *
+     * This method MUST be supported in any state.
+     *
+     * This method MUST be "non-blocking" and return within 1ms.
+     *
+     * \param[in,out] params          a list of parameter updates. These will be updated to the actual
+     *                      parameter values after the updates (this is because tuning is performed
+     *                      at best effort).
+     *                      \todo params that could not be updated are not marked here, so are
+     *                      confusing - are they "existing" values or intended to be configured
+     *                      values?
+     * \param[out] failures        a list of parameter failures
+     *
+     * \retval C2_OK        all parameters could be updated successfully
+     * \retval C2_BAD_INDEX all supported parameters could be updated successfully, but some
+     *                      parameters were not supported
+     * \retval C2_BAD_VALUE some supported parameters could not be updated successfully because
+     *                      they contained unsupported values. These are returned in |failures|.
+     * \retval C2_NO_MEMORY some supported parameters could not be updated successfully because
+     *                      they contained unsupported values, but could not allocate a failure
+     *                      object for them.
+     * \retval C2_CORRUPTED some unknown error prevented the update of the parameters
+     *                      (unexpected)
+     */
+    virtual status_t config_nb(
+            const std::vector<C2Param* const> &params,
+            std::vector<std::unique_ptr<C2SettingResult>>* const failures) = 0;
+
+    /**
+     * Atomically sets a set of parameters for the component or interface object.
+     *
+     * \note This method is used mainly for reserving resources for a component.
+     *
+     * The component SHALL update all supported configuration at
+     * best effort(TBD) (unless configured otherwise) and skip unsupported ones. Any errors are
+     * communicated in the return value and in |failures|.
+     *
+     * \note Parameter tuning DOES depend on the order of the tuning parameters. E.g. some parameter
+     * update may allow some subsequent parameter update.
+     *
+     * This method MUST be supported in any state.
+     *
+     * This method may be momentarily blocking, but MUST return within 5ms.
+     *
+     * \param params[in,out]          a list of parameter updates. These will be updated to the actual
+     *                      parameter values after the updates (this is because tuning is performed
+     *                      at best effort).
+     *                      \todo params that could not be updated are not marked here, so are
+     *                      confusing - are they "existing" values or intended to be configured
+     *                      values?
+     * \param failures[out]        a list of parameter failures
+     *
+     * \retval C2_OK        all parameters could be updated successfully
+     * \retval C2_BAD_INDEX all supported parameters could be updated successfully, but some
+     *                      parameters were not supported
+     * \retval C2_BAD_VALUE some supported parameters could not be updated successfully because
+     *                      they contained unsupported values. These are returned in |failures|.
+     * \retval C2_NO_MEMORY some supported parameters could not be updated successfully because
+     *                      they contained unsupported values, but could not allocate a failure
+     *                      object for them.
+     * \retval C2_CORRUPTED some unknown error prevented the update of the parameters
+     *                      (unexpected)
+     */
+    virtual status_t commit_sm(
+            const std::vector<C2Param* const> &params,
+            std::vector<std::unique_ptr<C2SettingResult>>* const failures) = 0;
+
+    // TUNNELING
+    // =============================================================================================
+
+    /**
+     * Creates a tunnel from this component to the target component.
+     *
+     * If the component is successfully created, subsequent work items queued may include a
+     * tunneled path between these components.
+     *
+     * This method MUST be supported in any state.
+     *
+     * This method may be momentarily blocking, but MUST return within 5ms.
+     *
+     * \retval C2_OK        the tunnel was successfully created
+     * \retval C2_BAD_INDEX the target component does not exist
+     * \retval C2_ALREADY_EXIST the tunnel already exists
+     * \retval C2_UNSUPPORTED  the tunnel is not supported
+     *
+     * \retval C2_TIMED_OUT could not create the tunnel within the time limit (unexpected)
+     * \retval C2_CORRUPTED some unknown error prevented the creation of the tunnel (unexpected)
+     */
+    virtual status_t createTunnel_sm(node_id targetComponent) = 0;
+
+    /**
+     * Releases a tunnel from this component to the target component.
+     *
+     * The release of a tunnel is delayed while there are pending work items for the tunnel.
+     * After releasing a tunnel, subsequent work items queued MUST NOT include a tunneled
+     * path between these components.
+     *
+     * This method MUST be supported in any state.
+     *
+     * This method may be momentarily blocking, but MUST return within 5ms.
+     *
+     * \retval C2_OK        the tunnel was marked for release successfully
+     * \retval C2_BAD_INDEX the target component does not exist
+     * \retval C2_NOT_FOUND the tunnel does not exist
+     *
+     * \retval C2_TIMED_OUT could not mark the tunnel for release within the time limit (unexpected)
+     * \retval C2_CORRUPTED some unknown error prevented the release of the tunnel (unexpected)
+     */
+    virtual status_t releaseTunnel_sm(node_id targetComponent) = 0;
+
+
+    // REFLECTION MECHANISM (USED FOR EXTENSION)
+    // =============================================================================================
+
+    /**
+     * Returns the parameter reflector.
+     *
+     * This is used to describe parameter fields.
+     *
+     * \return a shared parameter reflector object.
+     */
+    virtual std::shared_ptr<C2ParamReflector> getParamReflector() const = 0;
+
+    /**
+     * Returns the set of supported parameters.
+     *
+     * \param[out] params a vector of supported parameters will be appended to this vector.
+     *
+     * \retval C2_OK        the operation completed successfully.
+     * \retval C2_NO_MEMORY not enough memory to complete this method.
+     */
+    virtual status_t getSupportedParams(
+            std::vector<std::shared_ptr<C2ParamDescriptor>> * const params) const = 0;
+
+    /**
+     *
+     * \todo should this take a list considering that setting some fields may further limit other
+     * fields in the same list?
+     */
+    virtual status_t getSupportedValues(
+            const std::vector<const C2ParamField> fields,
+            std::vector<C2FieldSupportedValues>* const values) const = 0;
+
+    virtual ~C2ComponentInterface() = default;
+};
+
+class C2Component {
+public:
+    // METHODS AVAILABLE WHEN RUNNING
+    // =============================================================================================
+
+    /**
+     * Queues up work for the component.
+     *
+     * This method MUST be supported in running (including tripped) states.
+     *
+     * This method MUST be "non-blocking" and return within 1ms
+     *
+     * It is acceptable for this method to return OK and return an error value using the
+     * onWorkDone() callback.
+     *
+     * \retval C2_OK        the work was successfully queued
+     * \retval C2_BAD_INDEX some component(s) in the work do(es) not exist
+     * \retval C2_UNSUPPORTED  the components are not tunneled
+     *
+     * \retval C2_NO_MEMORY not enough memory to queue the work
+     * \retval C2_CORRUPTED some unknown error prevented queuing the work (unexpected)
+     */
+    virtual status_t queue_nb(std::list<std::unique_ptr<C2Work>>* const items) = 0;
+
+    /**
+     * Announces a work to be queued later for the component. This reserves a slot for the queue
+     * to ensure correct work ordering even if the work is queued later.
+     *
+     * This method MUST be supported in running (including tripped) states.
+     *
+     * This method MUST be "non-blocking" and return within 1 ms
+     *
+     * \retval C2_OK        the work announcement has been successfully recorded
+     * \retval C2_BAD_INDEX some component(s) in the work outline do(es) not exist
+     * \retval C2_UNSUPPORTED  the componentes are not tunneled
+     *
+     * \retval C2_NO_MEMORY not enough memory to record the work announcement
+     * \retval C2_CORRUPTED some unknown error prevented recording the announcement (unexpected)
+     *
+     * \todo Can this be rolled into queue_nb?
+     */
+    virtual status_t announce_nb(const std::vector<C2WorkOutline> &items) = 0;
+
+    /**
+     * Discards and abandons any pending work for the component, and optionally any component
+     * downstream.
+     *
+     * \todo define this: we could flush all work before last item queued for component across all
+     *                    components linked to this; flush only work items that are queued to this
+     *                    component
+     * \todo return work # of last flushed item; or all flushed (but not returned items)
+     * \todo we could make flush take a work item and flush all work before/after that item to allow
+     *       TBD (slicing/seek?)
+     * \todo we could simply take a list of numbers and flush those... this is bad for decoders
+     *       also, what would happen to fine grade references?
+     *
+     * This method MUST be supported in running (including tripped) states.
+     *
+     * This method may be momentarily blocking, but must return within 5ms.
+     *
+     * Work that could be immediately abandoned/discarded SHALL be returned in |flushedWork|; this
+     * can be done in an arbitrary order.
+     *
+     * Work that could not be abandoned or discarded immediately SHALL be marked to be
+     * discarded at the earliest opportunity, and SHALL be returned via the onWorkDone() callback.
+     *
+     * \param flushThrough    flush work from this component and all components connected downstream
+     *                      from it via tunneling.
+     *
+     * \retval C2_OK        the work announcement has been successfully recorded
+     * \retval C2_TIMED_OUT the flush could not be completed within the time limit (unexpected)
+     * \retval C2_CORRUPTED some unknown error prevented flushing from completion (unexpected)
+     */
+    virtual status_t flush_sm(bool flushThrough, std::list<std::unique_ptr<C2Work>>* const flushedWork) = 0;
+
+    /**
+     * Drains the component, and optionally downstream components
+     *
+     * \todo define this; we could place EOS to all upstream components, just this component, or
+     *       all upstream and downstream component.
+     * \todo should EOS carry over to downstream components?
+     *
+     * Marks last work item as "end-of-stream", so component is notified not to wait for further
+     * work before it processes work already queued. This method is called to set the end-of-stream
+     * flag after work has been queued. Client can continue to queue further work immediately after
+     * this method returns.
+     *
+     * This method MUST be supported in running (including tripped) states.
+     *
+     * This method MUST be "non-blocking" and return within 1ms.
+     *
+     * Work that is completed SHALL be returned via the onWorkDone() callback.
+     *
+     * \param drainThrough    marks the last work item with a persistent "end-of-stream" marker that
+     *                      will drain downstream components.
+     *
+     * \todo this may confuse work-ordering downstream; could be an mode enum
+     *
+     * \retval C2_OK        the work announcement has been successfully recorded
+     * \retval C2_TIMED_OUT the flush could not be completed within the time limit (unexpected)
+     * \retval C2_CORRUPTED some unknown error prevented flushing from completion (unexpected)
+     */
+    virtual status_t drain_nb(bool drainThrough) = 0;
+
+    // STATE CHANGE METHODS
+    // =============================================================================================
+
+    /**
+     * Starts the component.
+     *
+     * This method MUST be supported in stopped state.
+     *
+     * \todo This method MUST return within 500ms. Seems this should be able to return quickly, as
+     * there are no immediate guarantees. Though there are guarantees for responsiveness immediately
+     * after start returns.
+     *
+     * \todo Could we just start a ComponentInterface to get a Component?
+     *
+     * \retval C2_OK        the work announcement has been successfully recorded
+     * \retval C2_NO_MEMORY not enough memory to start the component
+     * \retval C2_TIMED_OUT the component could not be started within the time limit (unexpected)
+     * \retval C2_CORRUPTED some unknown error prevented starting the component (unexpected)
+     */
+    virtual status_t start() = 0;
+
+    /**
+     * Stops the component.
+     *
+     * This method MUST be supported in running (including tripped) state.
+     *
+     * This method MUST return withing 500ms.
+     *
+     * Upon this call, all pending work SHALL be abandoned.
+     *
+     * \todo should this return completed work, since client will just free it? Perhaps just to
+     * verify accounting.
+     *
+     * This does not alter any settings and tunings that may have resulted in a tripped state.
+     * (Is this material given the definition? Perhaps in case we want to start again.)
+     */
+    virtual status_t stop() = 0;
+
+    /**
+     * Resets the component.
+     *
+     * This method MUST be supported in running (including tripped) state.
+     *
+     * This method MUST be supported during any other call (\todo or just blocking ones?)
+     *
+     * This method MUST return withing 500ms.
+     *
+     * After this call returns all work is/must be abandoned, all references should be released.
+     *
+     * \todo should this return completed work, since client will just free it? Also, if it unblocks
+     * a stop, where should completed work be returned?
+     *
+     * This brings settings back to their default - "guaranteeing" no tripped space.
+     *
+     * \todo reclaim support - it seems that since ownership is passed, this will allow reclaiming stuff.
+     */
+    virtual void reset() = 0;
+
+    /**
+     * Releases the component.
+     *
+     * This method MUST be supported in any state. (\todo Or shall we force reset() first to bring
+     * to a known state?)
+     *
+     * This method MUST return withing 500ms.
+     *
+     * \todo should this return completed work, since client will just free it? Also, if it unblocks
+     * a stop, where should completed work be returned?
+     *
+     * TODO: does it matter if this call has a short time limit? Yes, as upon return all references
+     * shall be abandoned.
+     */
+    virtual void release() = 0;
+
+    /**
+     * Returns the interface for this component.
+     *
+     * \return the component interface
+     */
+    virtual std::shared_ptr<C2ComponentInterface> intf() = 0;
+
+protected:
+    virtual ~C2Component() = default;
+};
+
+class C2FrameInfoParser {
+public:
+    /**
+     * \return the content type supported by this info parser.
+     *
+     * \todo this may be redundant
+     */
+    virtual C2StringLiteral getType() const = 0;
+
+    /**
+     * \return a vector of supported parameter indices parsed by this info parser.
+     *
+     * \todo sticky vs. non-sticky params? this may be communicated by param-reflector.
+     */
+    virtual const std::vector<C2Param::Index> getParsedParams() const = 0;
+
+    /**
+     * Resets this info parser. This brings this parser to its initial state after creation.
+     *
+     * This method SHALL return within 5ms.
+     *
+     * \retval C2_OK        the info parser was reset
+     * \retval C2_TIMED_OUT could not reset the parser within the time limit (unexpected)
+     * \retval C2_CORRUPTED some unknown error prevented the resetting of the parser (unexpected)
+     */
+    virtual status_t reset() { return C2_OK; }
+
+    virtual status_t parseFrame(C2BufferPack &frame);
+
+    virtual ~C2FrameInfoParser() = default;
+};
+
+struct C2ComponentInfo {
+    // TBD
+
+};
+
+class C2AllocatorStore {
+public:
+    // TBD
+
+    enum Type {
+        LINEAR,     ///< basic linear allocator type
+        GRALLOC,    ///< basic gralloc allocator type
+    };
+
+    /**
+     * Creates an allocator.
+     *
+     * \param type      the type of allocator to create
+     * \param allocator shared pointer where the created allocator is stored. Cleared on failure
+     *                  and updated on success.
+     *
+     * \retval C2_OK        the allocator was created successfully
+     * \retval C2_TIMED_OUT could not create the allocator within the time limit (unexpected)
+     * \retval C2_CORRUPTED some unknown error prevented the creation of the allocator (unexpected)
+     *
+     * \retval C2_NOT_FOUND no such allocator
+     * \retval C2_NO_MEMORY not enough memory to create the allocator
+     */
+    virtual status_t createAllocator(Type type, std::shared_ptr<C2Allocator>* const allocator) = 0;
+
+    virtual ~C2AllocatorStore() = default;
+};
+
+class C2ComponentStore {
+    /**
+     * Creates a component.
+     *
+     * This method SHALL return within 100ms.
+     *
+     * \param name          name of the component to create
+     * \param component     shared pointer where the created component is stored. Cleared on
+     *                      failure and updated on success.
+     *
+     * \retval C2_OK        the component was created successfully
+     * \retval C2_TIMED_OUT could not create the component within the time limit (unexpected)
+     * \retval C2_CORRUPTED some unknown error prevented the creation of the component (unexpected)
+     *
+     * \retval C2_NOT_FOUND no such component
+     * \retval C2_NO_MEMORY not enough memory to create the component
+     */
+    virtual status_t createComponent(C2String name, std::shared_ptr<C2Component>* const component);
+
+    /**
+     * Creates a component interface.
+     *
+     * This method SHALL return within 100ms.
+     *
+     * \param name          name of the component interface to create
+     * \param interface     shared pointer where the created interface is stored
+     *
+     * \retval C2_OK        the component interface was created successfully
+     * \retval C2_TIMED_OUT could not create the component interface within the time limit
+     *                      (unexpected)
+     * \retval C2_CORRUPTED some unknown error prevented the creation of the component interface
+     *                      (unexpected)
+     *
+     * \retval C2_NOT_FOUND no such component interface
+     * \retval C2_NO_MEMORY not enough memory to create the component interface
+     *
+     * \todo Do we need an interface, or could this just be a component that is never started?
+     */
+    virtual status_t createInterface(C2String name, std::shared_ptr<C2ComponentInterface>* const interface);
+
+    /**
+     * Returns the list of components supported by this component store.
+     *
+     * This method SHALL return within 1ms.
+     *
+     * \retval vector of component information.
+     */
+    virtual std::vector<std::unique_ptr<const C2ComponentInfo>> getComponents();
+
+    // -------------------------------------- UTILITY METHODS --------------------------------------
+
+    // on-demand buffer layout conversion (swizzling)
+    virtual status_t copyBuffer(std::shared_ptr<C2GraphicBuffer> src, std::shared_ptr<C2GraphicBuffer> dst);
+
+    // status_t selectPreferredColor(formats<A>, formats<B>);
+
+    // GLOBAL SETTINGS
+    // system-wide stride & slice-height (???)
+
+    /**
+     * Queries a set of system-wide parameters.
+     * Querying is performed at best effort: the store SHALL query all supported parameters and
+     * skip unsupported ones, or heap allocated parameters that could not be allocated. Any errors
+     * are communicated in the return value. Additionally, preallocated (e.g. stack) parameters that
+     * could not be queried are invalidated. Parameters to be allocated on the heap are omitted from
+     * the result.
+     *
+     * \note Parameter values do not depend on the order of query.
+     *
+     * This method MUST be "non-blocking" and return within 1ms.
+     *
+     * \param stackParams     a list of params queried. These are initialized specific to each
+     *                      setting; e.g. size and index are set and rest of the members are
+     *                      cleared.
+     *                      NOTE: Flexible settings that are of incorrect size will be invalidated.
+     * \param heapParamIndices a vector of param indices for params to be queried and returned on the
+     *                      heap. These parameters will be returned in heapParams. Unsupported param
+     *                      indices will be ignored.
+     * \param heapParams      a list of params where to which the supported heap parameters will be
+     *                      appended in the order they appear in heapParamIndices.
+     *
+     * \retval C2_OK        all parameters could be queried
+     * \retval C2_BAD_INDEX all supported parameters could be queried, but some parameters were not
+     *                      supported
+     * \retval C2_NO_MEMORY could not allocate memory for a supported parameter
+     * \retval C2_CORRUPTED some unknown error prevented the querying of the parameters
+     *                      (unexpected)
+     */
+    virtual status_t query_nb(
+        const std::vector<C2Param* const> &stackParams,
+        const std::vector<C2Param::Index> &heapParamIndices,
+        std::vector<std::unique_ptr<C2Param>>* const heapParams) = 0;
+
+    /**
+     * Sets a set of system-wide parameters.
+     *
+     * \note There are no settable system-wide parameters defined thus far, but may be added in the
+     * future.
+     *
+     * Tuning is performed at best effort: the store SHALL update all supported configuration at
+     * best effort (unless configured otherwise) and skip unsupported ones. Any errors are
+     * communicated in the return value and in |failures|.
+     *
+     * \note Parameter tuning DOES depend on the order of the tuning parameters. E.g. some parameter
+     * update may allow some subsequent parameter update.
+     *
+     * This method MUST be "non-blocking" and return within 1ms.
+     *
+     * \param params          a list of parameter updates. These will be updated to the actual
+     *                      parameter values after the updates (this is because tuning is performed
+     *                      at best effort).
+     *                      \todo params that could not be updated are not marked here, so are
+     *                      confusing - are they "existing" values or intended to be configured
+     *                      values?
+     * \param failures        a list of parameter failures
+     *
+     * \retval C2_OK        all parameters could be updated successfully
+     * \retval C2_BAD_INDEX all supported parameters could be updated successfully, but some
+     *                      parameters were not supported
+     * \retval C2_BAD_VALUE some supported parameters could not be updated successfully because
+     *                      they contained unsupported values. These are returned in |failures|.
+     * \retval C2_NO_MEMORY some supported parameters could not be updated successfully because
+     *                      they contained unsupported values, but could not allocate a failure
+     *                      object for them.
+     * \retval C2_CORRUPTED some unknown error prevented the update of the parameters
+     *                      (unexpected)
+     */
+    virtual status_t config_nb(
+            const std::vector<C2Param* const> &params,
+            std::list<std::unique_ptr<C2SettingResult>>* const failures) = 0;
+
+    virtual ~C2ComponentStore() = default;
+};
+
+// ================================================================================================
+
+/// @}
+
+}  // namespace android
+
+#endif  // C2COMPONENT_H_
diff --git a/media/libstagefright/codec2/include/C2Config.h b/media/libstagefright/codec2/include/C2Config.h
new file mode 100644
index 0000000..30e9193
--- /dev/null
+++ b/media/libstagefright/codec2/include/C2Config.h
@@ -0,0 +1,251 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef C2CONFIG_H_
+#define C2CONFIG_H_
+
+#include <C2ParamDef.h>
+
+namespace android {
+
+/// \defgroup config Component configuration
+/// @{
+
+#ifndef DEFINE_C2_ENUM_VALUE_AUTO_HELPER
+#define DEFINE_C2_ENUM_VALUE_AUTO_HELPER(name, type, prefix, ...)
+#define DEFINE_C2_ENUM_VALUE_CUSTOM_HELPER(name, type, names, ...)
+#endif
+
+#define C2ENUM(name, type, ...) \
+enum name : type { __VA_ARGS__ }; \
+DEFINE_C2_ENUM_VALUE_AUTO_HELPER(name, type, NULL, __VA_ARGS__)
+
+#define C2ENUM_CUSTOM_PREFIX(name, type, prefix, ...) \
+enum name : type { __VA_ARGS__ }; \
+DEFINE_C2_ENUM_VALUE_AUTO_HELPER(name, type, prefix, __VA_ARGS__)
+
+#define C2ENUM_CUSTOM_NAMES(name, type, names, ...) \
+enum name : type { __VA_ARGS__ }; \
+DEFINE_C2_ENUM_VALUE_CUSTOM_HELPER(name, type, names, __VA_ARGS__)
+
+enum C2ParamIndexKind : uint32_t {
+    /// domain
+    kParamIndexDomain,
+
+    /// configuration descriptors
+    kParamIndexSupportedParams,
+    kParamIndexRequiredParams,
+    kParamIndexReadOnlyParams,
+    kParamIndexRequestedInfos,
+
+    /// latency
+    kParamIndexLatency,
+
+    // generic time behavior
+    kParamIndexTemporal,
+
+    /// port configuration
+    kParamIndexMime,
+    kParamIndexStreamCount,
+    kParamIndexFormat,
+
+    // video info
+
+    kParamIndexStructStart = 0x1,
+    kParamIndexVideoSize,
+    kParamIndexMaxVideoSizeHint,
+
+    kParamIndexParamStart = 0x800,
+};
+
+C2ENUM(C2DomainKind, int32_t,
+    C2DomainVideo,
+    C2DomainAudio,
+    C2DomainOther = C2DomainAudio + 1
+);
+
+// read-only
+
+typedef C2GlobalParam<C2Info, C2SimpleValueStruct<C2DomainKind>, kParamIndexDomain> C2ComponentDomainInfo;
+// typedef C2GlobalParam<C2Info, C2Uint32Value, kParamIndexDomain> C2ComponentDomainInfo;
+//DESCRIBE_TEMPLATED_C2STRUCT(C2SimpleValueStruct<C2DomainKind>, { C2FIELD(mValue, "value") });
+
+// read-only
+typedef C2GlobalParam<C2Info, C2Uint32Array, kParamIndexSupportedParams> C2SupportedParamsInfo;
+
+/// \todo do we define it as a param?
+// read-only
+typedef C2GlobalParam<C2Info, C2Uint32Array, kParamIndexRequiredParams> C2RequiredParamsInfo;
+
+// read-only
+typedef C2GlobalParam<C2Info, C2Uint32Array, kParamIndexReadOnlyParams> C2ReadOnlyParamsInfo;
+
+// read-only
+typedef C2GlobalParam<C2Info, C2Uint32Array, kParamIndexRequestedInfos> C2RequestedInfosInfo;
+
+// read-only
+//typedef C2GlobalParam<C2Info, C2Uint32Value, kParamIndexRequestedInfos> C2RequestedInfosInfo;
+
+/// latency
+
+typedef C2PortParam<C2Info, C2Uint32Value, kParamIndexLatency> C2PortLatencyInfo;
+
+typedef C2GlobalParam<C2Info, C2Uint32Value, kParamIndexLatency> C2ComponentLatencyInfo;
+
+/// \todo
+typedef C2GlobalParam<C2Info, C2Uint32Value, kParamIndexTemporal> C2ComponentTemporalInfo;
+
+/// port configuration
+
+typedef C2PortParam<C2Tuning, C2StringValue, kParamIndexMime> C2PortMimeConfig;
+
+typedef C2PortParam<C2Tuning, C2Uint32Value, kParamIndexStreamCount> C2PortStreamCountConfig;
+
+typedef C2StreamParam<C2Tuning, C2StringValue, kParamIndexMime> C2StreamMimeConfig;
+
+C2ENUM(C2FormatKind, uint32_t,
+    C2FormatCompressed,
+    C2FormatAudio = 1,
+    C2FormatVideo = 4,
+)
+
+typedef C2StreamParam<C2Tuning, C2Uint32Value, kParamIndexFormat> C2StreamFormatConfig;
+
+/*
+   Component description fields:
+
+// format (video/compressed/audio/other-do we need other?) per stream
+
+// likely some of these are exposed as separate settings:
+
+struct C2BaseTuning {
+    // latency characteristics
+    uint32_t latency;
+    bool temporal;               // seems this only makes sense if latency is 1..., so this could be captured as latency = 0
+    uint32_t delay;
+
+    uint32_t numInputStreams;    // RW? - or suggestion only: RO
+    uint32_t numOutputStreams;   // RW
+                                 //
+    // refs characteristics (per stream?)
+    uint32_t maxInputRefs;       // RO
+    uint32_t maxOutputRefs;      // RO
+    uint32_t maxInputMemory;     // RO - max time refs are held for
+    uint32_t maxOutputMemory;    // RO
+
+    // per stream
+    bool compressed;
+    // format... video/compressed/audio/other?
+    // actual "audio/video" format type
+    uint32_t width/height? is this needed, or just queue...
+    // mime...
+};
+*/
+
+
+
+
+
+
+// overall component
+//   => C: domain: audio or video
+//   => C: kind: decoder, encoder or filter
+//   => "mime" class
+
+//   => C: temporal (bool) => does this depend on ordering?
+//   => I: latency
+//   => I: history max duration...
+//   => I: history max frames kept...
+//   => I: reordering depth
+//   => I: frc (bool) (perhaps ratio?)
+//   => I: current frc
+
+//   - pause
+//   => last frame 'number' processed
+//   => current frame 'number' processed
+//   => invalid settings =>[]
+
+// video decoder configuration:                                 // audio
+//   - encoding                                                 // -encoding
+//   - hint: max width/height                                   // -hint: sample rate, channels
+//   - hint: profile/level                                      // -hint: tools used
+//   - hint: framerate (bitrate?)                               // -hint: bitrate
+//   - default: color space (from container)
+//   - hint: color format                                       // -hint: pcm-encoding
+//   - hint: # of views (e.g. MVC)                              // -hint?: channel groups
+//   - default: HDR static info (from container)                // -hint?: channel mappings
+//   - hint: rotation (e.g. for allocator)
+
+// => # of streams required and their formats? (setting?)
+// => # of streams produced and their formats? (tuning)
+
+// => output
+//   - # of views                                               // -channel groups && channel mappings
+//   - width/height/crop/color format/color space/HDR static info (from buffers)
+//     (as required by the allocator & framework)
+//   - SEI (or equivalent) <= [port]
+//     - CC
+//   - reference info
+
+// video encoder configurations
+//   - encoding                                                 // - encoding
+//   - hint: width/height                                       // - hint: sample rate, channels
+//   - hint: frame rate
+//   - hint: max width/height (? does this differ from width/height?)
+//   - # of input (e.g. MVC)                                    // - hint: # groups and mappings
+//   - # of output (e.g. SVC) => bitrates/width/height/framerates? per stream
+//   - hint: profile/level                                      // - hint: profile/level
+//   - HDR static info + (info: HDR)
+//   - color space
+//   - hint: color format?                                      // - hint: pcm encoding
+//   - SEI
+//     - CC
+//   - reference directive
+//   - hint: bitrate (or quality)                               // - hint: bitrate/quality
+//   - optional: codec-specific parameters                      // - optional: csd
+
+// => output                                                    // => output
+//   - layers per stream?                                       // E-AC3?... DTS?...Dolby-Vision?
+//   - reference info
+
+
+// RM:
+//   - need SPS for full knowledge => component should return max. (component can use less)
+//   - critical parameters? (interlaced? profile? level?)
+
+struct C2VideoSizeStruct {
+    int32_t mWidth;     ///< video width
+    int32_t mHeight;    ///< video height
+
+    DEFINE_AND_DESCRIBE_C2STRUCT(VideoSize)
+    C2FIELD(mWidth, "width")
+    C2FIELD(mHeight, "height")
+};
+
+// video size for video decoder [OUT]
+typedef C2StreamParam<C2Info, C2VideoSizeStruct> C2VideoSizeStreamInfo;
+
+// max video size for video decoder [IN]
+typedef C2PortParam<C2Setting, C2VideoSizeStruct, kParamIndexMaxVideoSizeHint> C2MaxVideoSizeHintPortSetting;
+
+// video encoder size [IN]
+typedef C2StreamParam<C2Tuning, C2VideoSizeStruct> C2VideoSizeStreamTuning;
+
+/// @}
+
+} // namespace android
+
+#endif
diff --git a/media/libstagefright/codec2/include/C2Param.h b/media/libstagefright/codec2/include/C2Param.h
new file mode 100644
index 0000000..fd43061
--- /dev/null
+++ b/media/libstagefright/codec2/include/C2Param.h
@@ -0,0 +1,1171 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef C2PARAM_H_
+#define C2PARAM_H_
+
+#include <C2.h>
+
+#include <stdbool.h>
+#include <stdint.h>
+
+#include <algorithm>
+#include <list>
+#include <string>
+#include <type_traits>
+
+#define C2_PACK __attribute__((packed))
+
+namespace android {
+
+/// \addtogroup Parameters
+/// @{
+
+/// \defgroup internal Internal helpers.
+
+/*!
+ * \file
+ * PARAMETERS: SETTINGs, TUNINGs, and INFOs
+ * ===
+ *
+ * These represent miscellaneous control and metadata information and are likely copied into
+ * kernel space. Therefore, these are C-like structures designed to carry just a small amount of
+ * information. We are using C++ to be able to add constructors, as well as non-virtual and class
+ * methods.
+ *
+ * ==Specification details:
+ *
+ * Restrictions:
+ *   - must be POD struct, e.g. no vtable (no virtual destructor)
+ *   - must have the same size in 64-bit and 32-bit mode (no size_t)
+ *   - as such, no pointer members
+ *
+ * Behavior:
+ * - Params can be global (not related to input or output), related to input or output,
+ *   or related to an input/output stream.
+ * - All params are queried/set using a unique param index, which incorporates a potential stream
+ *   index and/or port.
+ * - Querying (supported) params MUST never fail.
+ * - All params MUST have default values.
+ * - If some fields have "unsupported" or "invalid" values during setting, this SHOULD be
+ *   communicated to the app.
+ *   a) Ideally, this should be avoided.  When setting parameters, in general, component should do
+ *     "best effort" to apply all settings. It should change "invalid/unsupported" values to the
+ *     nearest supported values.
+ *   - This is communicated to the client by changing the source values in tune()/
+ *     configure().
+ *   b) If falling back to a supported value is absolutely impossible, the component SHALL return
+ *     an error for the specific setting, but should continue to apply other settings.
+ *     TODO: this currently may result in unintended results.
+ *
+ * **NOTE:** unlike OMX, params are not versioned. Instead, a new struct with new base index
+ * SHALL be added as new versions are required.
+ *
+ * The proper subtype (Setting, Info or Param) is incorporated into the class type. Define structs
+ * to define multiple subtyped versions of related parameters.
+ *
+ * ==Implementation details:
+ *
+ * - Use macros to define parameters
+ * - All parameters must have a default constructor
+ *   - This is only used for instantiating the class in source (e.g. will not be used
+ *     when building a parameter by the framework from key/value pairs.)
+ */
+
+/// \ingroup internal
+struct _C2ParamManipulator;
+
+/**
+ * Parameter base class.
+ */
+struct C2Param {
+    // param index encompasses the following:
+    //
+    // - type (setting, tuning, info, struct)
+    // - vendor extension flag
+    // - flexible parameter flag
+    // - direction (global, input, output)
+    // - stream flag
+    // - stream ID (usually 0)
+    //
+    // layout:
+    //
+    //      +------+-----+---+------+--------+----|------+--------------+
+    //      | kind | dir | - |stream|streamID|flex|vendor|  base index  |
+    //      +------+-----+---+------+--------+----+------+--------------+
+    //  bit: 31..30 29.28       25   24 .. 17  16    15   14    ..     0
+    //
+public:
+    /**
+     * C2Param kinds, usable as bitmaps.
+     */
+    enum Kind : uint32_t {
+        NONE    = 0,
+        STRUCT  = (1 << 0),
+        INFO    = (1 << 1),
+        SETTING = (1 << 2),
+        TUNING  = (1 << 3) | SETTING, // tunings are settings
+    };
+
+    /**
+     * base index (including the vendor extension bit) is a global index for
+     * C2 parameter structs. (e.g. the same indices cannot be reused for different
+     * structs for different components).
+     */
+    struct BaseIndex {
+    protected:
+        enum : uint32_t {
+            kTypeMask      = 0xC0000000,
+            kTypeStruct    = 0x00000000,
+            kTypeTuning    = 0x40000000,
+            kTypeSetting   = 0x80000000,
+            kTypeInfo      = 0xC0000000,
+
+            kDirMask       = 0x30000000,
+            kDirGlobal     = 0x20000000,
+            kDirUndefined  = 0x30000000, // MUST have all bits set
+            kDirInput      = 0x00000000,
+            kDirOutput     = 0x10000000,
+
+            kStreamFlag    = 0x02000000,
+            kStreamIdMask  = 0x01FE0000,
+            kStreamIdShift = 17,
+            kStreamIdMax   = kStreamIdMask >> kStreamIdShift,
+            kStreamMask    = kStreamFlag | kStreamIdMask,
+
+            kFlexibleFlag  = 0x00010000,
+            kVendorFlag    = 0x00008000,
+            kParamMask     = 0x0000FFFF,
+            kBaseMask      = kParamMask | kFlexibleFlag,
+        };
+
+    public:
+        enum : uint32_t {
+            kVendorStart = kVendorFlag, ///< vendor structs SHALL start after this
+            _kFlexibleFlag = kFlexibleFlag, // TODO: this is only needed for testing
+        };
+
+        /// constructor/conversion from uint32_t
+        inline BaseIndex(uint32_t index) : mIndex(index) { }
+
+        // no conversion from uint64_t
+        inline BaseIndex(uint64_t index) = delete;
+
+        /// returns true iff this is a vendor extension parameter
+        inline bool isVendor() const { return mIndex & kVendorFlag; }
+
+        /// returns true iff this is a flexible parameter (with variable size)
+        inline bool isFlexible() const { return mIndex & kFlexibleFlag; }
+
+        /// returns the base type: the index for the underlying struct
+        inline unsigned int baseIndex() const { return mIndex & kBaseMask; }
+
+        /// returns the param index for the underlying struct
+        inline unsigned int paramIndex() const { return mIndex & kParamMask; }
+
+        DEFINE_FIELD_BASED_COMPARISON_OPERATORS(BaseIndex, mIndex)
+
+    protected:
+        uint32_t mIndex;
+    };
+
+    /**
+     * type encompasses the parameter kind (tuning, setting, info), whether the
+     * parameter is global, input or output, and whether it is for a stream.
+     */
+    struct Type : public BaseIndex {
+        /// returns true iff this is a global parameter (not for input nor output)
+        inline bool isGlobal() const { return (mIndex & kDirMask) == kDirGlobal; }
+        /// returns true iff this is an input or input stream parameter
+        inline bool forInput() const { return (mIndex & kDirMask) == kDirInput; }
+        /// returns true iff this is an output or output stream parameter
+        inline bool forOutput() const { return (mIndex & kDirMask) == kDirOutput; }
+
+        /// returns true iff this is a stream parameter
+        inline bool forStream() const { return mIndex & kStreamFlag; }
+        /// returns true iff this is a port (input or output) parameter
+        inline bool forPort() const   { return !forStream() && !isGlobal(); }
+
+        /// returns the parameter type: the parameter index without the stream ID
+        inline uint32_t type() const { return mIndex & (~kStreamIdMask); }
+
+        /// return the kind of this param
+        inline Kind kind() const {
+            switch (mIndex & kTypeMask) {
+                case kTypeStruct: return STRUCT;
+                case kTypeInfo: return INFO;
+                case kTypeSetting: return SETTING;
+                case kTypeTuning: return TUNING;
+                default: return NONE; // should not happen
+            }
+        }
+
+        /// constructor/conversion from uint32_t
+        inline Type(uint32_t index) : BaseIndex(index) { }
+
+        // no conversion from uint64_t
+        inline Type(uint64_t index) = delete;
+
+    private:
+        friend struct C2Param;   // for setPort()
+        friend struct C2Tuning;  // for kTypeTuning
+        friend struct C2Setting; // for kTypeSetting
+        friend struct C2Info;    // for kTypeInfo
+        // for kDirGlobal
+        template<typename T, typename S, int I, class F> friend struct C2GlobalParam;
+        template<typename T, typename S, int I, class F> friend struct C2PortParam;   // for kDir*
+        template<typename T, typename S, int I, class F> friend struct C2StreamParam; // for kDir*
+        friend struct _C2ParamInspector; // for testing
+
+        /**
+         * Sets the port/stream direction.
+         * @return true on success, false if could not set direction (e.g. it is global param).
+         */
+        inline bool setPort(bool output) {
+            if (isGlobal()) {
+                return false;
+            } else {
+                mIndex = (mIndex & ~kDirMask) | (output ? kDirOutput : kDirInput);
+                return true;
+            }
+        }
+    };
+
+    /**
+     * index encompasses all remaining information: basically the stream ID.
+     */
+    struct Index : public Type {
+        /// returns the index as uint32_t
+        inline operator uint32_t() const { return mIndex; }
+
+        /// constructor/conversion from uint32_t
+        inline Index(uint32_t index) : Type(index) { }
+
+        // no conversion from uint64_t
+        inline Index(uint64_t index) = delete;
+
+        /// returns the stream ID or ~0 if not a stream
+        inline unsigned stream() const {
+            return forStream() ? rawStream() : ~0U;
+        }
+
+    private:
+        friend struct C2Param;           // for setStream, makeStreamId, isValid
+        friend struct _C2ParamInspector; // for testing
+
+        /**
+         * @return true if the type is valid, e.g. direction is not undefined AND
+         * stream is 0 if not a stream param.
+         */
+        inline bool isValid() const {
+            // there is no Type::isValid (even though some of this check could be
+            // performed on types) as this is only used on index...
+            return (forStream() ? rawStream() < kStreamIdMax : rawStream() == 0)
+                    && (mIndex & kDirMask) != kDirUndefined;
+        }
+
+        /// returns the raw stream ID field
+        inline unsigned rawStream() const {
+            return (mIndex & kStreamIdMask) >> kStreamIdShift;
+        }
+
+        /// returns the streamId bitfield for a given |stream|. If stream is invalid,
+        /// returns an invalid bitfield.
+        inline static uint32_t makeStreamId(unsigned stream) {
+            // saturate stream ID (max value is invalid)
+            if (stream > kStreamIdMax) {
+                stream = kStreamIdMax;
+            }
+            return (stream << kStreamIdShift) & kStreamIdMask;
+        }
+
+        /**
+         * Sets the stream index.
+         * \return true on success, false if could not set index (e.g. not a stream param).
+         */
+        inline bool setStream(unsigned stream) {
+            if (forStream()) {
+                mIndex = (mIndex & ~kStreamIdMask) | makeStreamId(stream);
+                return this->stream() < kStreamIdMax;
+            }
+            return false;
+        }
+    };
+
+public:
+    // public getters for Index methods
+
+    /// returns true iff this is a vendor extension parameter
+    inline bool isVendor() const { return _mIndex.isVendor(); }
+    /// returns true iff this is a flexible parameter
+    inline bool isFlexible() const { return _mIndex.isFlexible(); }
+    /// returns true iff this is a global parameter (not for input nor output)
+    inline bool isGlobal() const { return _mIndex.isGlobal(); }
+    /// returns true iff this is an input or input stream parameter
+    inline bool forInput() const { return _mIndex.forInput(); }
+    /// returns true iff this is an output or output stream parameter
+    inline bool forOutput() const { return _mIndex.forOutput(); }
+
+    /// returns true iff this is a stream parameter
+    inline bool forStream() const { return _mIndex.forStream(); }
+    /// returns true iff this is a port (input or output) parameter
+    inline bool forPort() const   { return _mIndex.forPort(); }
+
+    /// returns the stream ID or ~0 if not a stream
+    inline unsigned stream() const { return _mIndex.stream(); }
+
+    /// returns the parameter type: the parameter index without the stream ID
+    inline uint32_t type() const { return _mIndex.type(); }
+
+    /// returns the kind of this parameter
+    inline Kind kind() const { return _mIndex.kind(); }
+
+    /// returns the size of the parameter or 0 if the parameter is invalid
+    inline size_t size() const { return _mSize; }
+
+    /// returns true iff the parameter is valid
+    inline operator bool() const { return _mIndex.isValid() && _mSize > 0; }
+
+    /// returns true iff the parameter is invalid
+    inline bool operator!() const { return !operator bool(); }
+
+    // equality is done by memcmp (use equals() to prevent any overread)
+    inline bool operator==(const C2Param &o) const {
+        return equals(o) && memcmp(this, &o, _mSize) == 0;
+    }
+    inline bool operator!=(const C2Param &o) const { return !operator==(o); }
+
+    /// safe(r) type cast from pointer and size
+    inline static C2Param* From(void *addr, size_t len) {
+        // _mSize must fit into size
+        if (len < sizeof(_mSize) + offsetof(C2Param, _mSize)) {
+            return nullptr;
+        }
+        // _mSize must match length
+        C2Param *param = (C2Param*)addr;
+        if (param->_mSize != len) {
+            return nullptr;
+        }
+        return param;
+    }
+
+#if 0
+    template<typename P, class=decltype(C2Param(P()))>
+    P *As() { return P::From(this); }
+    template<typename P>
+    const P *As() const { return const_cast<const P*>(P::From(const_cast<C2Param*>(this))); }
+#endif
+
+protected:
+    /// sets the stream field. Returns true iff successful.
+    inline bool setStream(unsigned stream) {
+        return _mIndex.setStream(stream);
+    }
+
+    /// sets the port (direction). Returns true iff successful.
+    inline bool setPort(bool output) {
+        return _mIndex.setPort(output);
+    }
+
+public:
+    /// invalidate this parameter. There is no recovery from this call; e.g. parameter
+    /// cannot be 'corrected' to be valid.
+    inline void invalidate() { _mSize = 0; }
+
+    // if other is the same kind of (valid) param as this, copy it into this and return true.
+    // otherwise, do not copy anything, and return false.
+    inline bool updateFrom(const C2Param &other) {
+        if (other._mSize == _mSize && other._mIndex == _mIndex && _mSize > 0) {
+            memcpy(this, &other, _mSize);
+            return true;
+        }
+        return false;
+    }
+
+protected:
+    // returns |o| if it is a null ptr, or if can suitably be a param of given |type| (e.g. has
+    // same type (ignoring stream ID), and size). Otherwise, returns null. If |checkDir| is false,
+    // allow undefined or different direction (e.g. as constructed from C2PortParam() vs.
+    // C2PortParam::input), but still require equivalent type (stream, port or global); otherwise,
+    // return null.
+    inline static const C2Param* ifSuitable(
+            const C2Param* o, size_t size, Type type, size_t flexSize = 0, bool checkDir = true) {
+        if (o == nullptr || o->_mSize < size || (flexSize && ((o->_mSize - size) % flexSize))) {
+            return nullptr;
+        } else if (checkDir) {
+            return o->_mIndex.type() == type.mIndex ? o : nullptr;
+        } else if (o->_mIndex.isGlobal()) {
+            return nullptr;
+        } else {
+            return ((o->_mIndex.type() ^ type.mIndex) & ~Type::kDirMask) ? nullptr : o;
+        }
+    }
+
+    /// base constructor
+    inline C2Param(uint32_t paramSize, Index paramIndex)
+        : _mSize(paramSize),
+          _mIndex(paramIndex) {
+        if (paramSize > sizeof(C2Param)) {
+            memset(this + 1, 0, paramSize - sizeof(C2Param));
+        }
+    }
+
+    /// base constructor with stream set
+    inline C2Param(uint32_t paramSize, Index paramIndex, unsigned stream)
+        : _mSize(paramSize),
+          _mIndex(paramIndex | Index::makeStreamId(stream)) {
+        if (paramSize > sizeof(C2Param)) {
+            memset(this + 1, 0, paramSize - sizeof(C2Param));
+        }
+        if (!forStream()) {
+            invalidate();
+        }
+    }
+
+private:
+    friend struct _C2ParamInspector; // for testing
+
+    /// returns the base type: the index for the underlying struct (for testing
+    /// as this can be gotten by the baseIndex enum)
+    inline uint32_t _baseIndex() const { return _mIndex.baseIndex(); }
+
+    /// returns true iff |o| has the same size and index as this. This performs the
+    /// basic check for equality.
+    inline bool equals(const C2Param &o) const {
+        return _mSize == o._mSize && _mIndex == o._mIndex;
+    }
+
+    uint32_t _mSize;
+    Index _mIndex;
+};
+
+/// \ingroup internal
+/// allow C2Params access to private methods, e.g. constructors
+#define C2PARAM_MAKE_FRIENDS \
+    template<typename U, typename S, int I, class F> friend struct C2GlobalParam; \
+    template<typename U, typename S, int I, class F> friend struct C2PortParam; \
+    template<typename U, typename S, int I, class F> friend struct C2StreamParam; \
+
+/**
+ * Setting base structure for component method signatures. Wrap constructors.
+ */
+struct C2Setting : public C2Param {
+protected:
+    template<typename ...Args>
+    inline C2Setting(const Args(&... args)) : C2Param(args...) { }
+public: // TODO
+    enum : uint32_t { indexFlags = Type::kTypeSetting };
+};
+
+/**
+ * Tuning base structure for component method signatures. Wrap constructors.
+ */
+struct C2Tuning : public C2Setting {
+protected:
+    template<typename ...Args>
+    inline C2Tuning(const Args(&... args)) : C2Setting(args...) { }
+public: // TODO
+    enum : uint32_t { indexFlags = Type::kTypeTuning };
+};
+
+/**
+ * Info base structure for component method signatures. Wrap constructors.
+ */
+struct C2Info : public C2Param {
+protected:
+    template<typename ...Args>
+    inline C2Info(const Args(&... args)) : C2Param(args...) { }
+public: // TODO
+    enum : uint32_t { indexFlags = Type::kTypeInfo };
+};
+
+/**
+ * Structure uniquely specifying a field in an arbitrary structure.
+ *
+ * \note This structure is used differently in C2FieldDescriptor to
+ * identify array fields, such that _mSize is the size of each element. This is
+ * because the field descriptor contains the array-length, and we want to keep
+ * a relevant element size for variable length arrays.
+ */
+struct _C2FieldId {
+//public:
+    /**
+     * Constructor used for C2FieldDescriptor that removes the array extent.
+     *
+     * \param[in] offset pointer to the field in an object at address 0.
+     */
+    template<typename T, class B=typename std::remove_extent<T>::type>
+    inline _C2FieldId(T* offset)
+        : // offset is from "0" so will fit on 32-bits
+          _mOffset((uint32_t)(uintptr_t)(offset)),
+          _mSize(sizeof(B)) { }
+
+    /**
+     * Direct constructor from offset and size.
+     *
+     * \param[in] offset offset of the field.
+     * \param[in] size size of the field.
+     */
+    inline _C2FieldId(size_t offset, size_t size)
+        : _mOffset(offset), _mSize(size) {}
+
+    /**
+     * Constructor used to identify a field in an object.
+     *
+     * \param U[type] pointer to the object that contains this field. This is needed in case the
+     *        field is in an (inherited) base class, in which case T will be that base class.
+     * \param pm[im] member pointer to the field
+     */
+    template<typename R, typename T, typename U, typename B=typename std::remove_extent<R>::type>
+    inline _C2FieldId(U *, R T::* pm)
+        : _mOffset((uint32_t)(uintptr_t)(&(((U*)256)->*pm)) - 256u),
+          _mSize(sizeof(B)) { }
+
+    /**
+     * Constructor used to identify a field in an object.
+     *
+     * \param U[type] pointer to the object that contains this field
+     * \param pm[im] member pointer to the field
+     */
+    template<typename R, typename T, typename B=typename std::remove_extent<R>::type>
+    inline _C2FieldId(R T::* pm)
+        : _mOffset((uint32_t)(uintptr_t)(&(((T*)0)->*pm))),
+          _mSize(sizeof(B)) { }
+
+    inline bool operator==(const _C2FieldId &other) const {
+        return _mOffset == other._mOffset && _mSize == other._mSize;
+    }
+
+    inline bool operator<(const _C2FieldId &other) const {
+        return _mOffset < other._mOffset ||
+            // NOTE: order parent structure before sub field
+            (_mOffset == other._mOffset && _mSize > other._mSize);
+    }
+
+    DEFINE_OTHER_COMPARISON_OPERATORS(_C2FieldId)
+
+#if 0
+    inline uint32_t offset() const { return _mOffset; }
+    inline uint32_t size() const { return _mSize; }
+#endif
+
+#if defined(FRIEND_TEST)
+    friend void PrintTo(const _C2FieldId &d, ::std::ostream*);
+#endif
+
+private:
+    uint32_t _mOffset; // offset of field
+    uint32_t _mSize;   // size of field
+};
+
+/**
+ * Structure uniquely specifying a field in a configuration
+ */
+struct C2ParamField {
+//public:
+    // TODO: fix what this is for T[] (for now size becomes T[1])
+    template<typename S, typename T>
+    inline C2ParamField(S* param, T* offset)
+        : _mIndex(param->index()),
+          _mFieldId(offset) {}
+
+    template<typename R, typename T, typename U>
+    inline C2ParamField(U *p, R T::* pm) : _mIndex(p->type()), _mFieldId(p, pm) { }
+
+    inline bool operator==(const C2ParamField &other) const {
+        return _mIndex == other._mIndex && _mFieldId == other._mFieldId;
+    }
+
+    inline bool operator<(const C2ParamField &other) const {
+        return _mIndex < other._mIndex ||
+            (_mIndex == other._mIndex && _mFieldId < other._mFieldId);
+    }
+
+    DEFINE_OTHER_COMPARISON_OPERATORS(C2ParamField)
+
+private:
+    C2Param::Index _mIndex;
+    _C2FieldId _mFieldId;
+};
+
+/**
+ * A shared (union) representation of numeric values
+ */
+class C2Value {
+public:
+    /// A union of supported primitive types.
+    union Primitive {
+        int32_t  i32;   ///< int32_t value
+        uint32_t u32;   ///< uint32_t value
+        int64_t  i64;   ///< int64_t value
+        uint64_t u64;   ///< uint64_t value
+        float    fp;    ///< float value
+
+        // constructors - implicit
+        Primitive(int32_t value)  : i32(value) { }
+        Primitive(uint32_t value) : u32(value) { }
+        Primitive(int64_t value)  : i64(value) { }
+        Primitive(uint64_t value) : u64(value) { }
+        Primitive(float value)    : fp(value)  { }
+
+        Primitive() : u64(0) { }
+
+    private:
+        friend class C2Value;
+        template<typename T> const T &ref() const;
+    };
+
+    enum Type {
+        NO_INIT,
+        INT32,
+        UINT32,
+        INT64,
+        UINT64,
+        FLOAT,
+    };
+
+    template<typename T> static constexpr Type typeFor();
+
+    // constructors - implicit
+    template<typename T>
+    C2Value(T value)  : mType(typeFor<T>()),  mValue(value) { }
+
+    C2Value() : mType(NO_INIT) { }
+
+    inline Type type() const { return mType; }
+
+    template<typename T>
+    inline bool get(T *value) const {
+        if (mType == typeFor<T>()) {
+            *value = mValue.ref<T>();
+            return true;
+        }
+        return false;
+    }
+
+private:
+    Type mType;
+    Primitive mValue;
+};
+
+template<> const int32_t &C2Value::Primitive::ref<int32_t>() const { return i32; }
+template<> const int64_t &C2Value::Primitive::ref<int64_t>() const { return i64; }
+template<> const uint32_t &C2Value::Primitive::ref<uint32_t>() const { return u32; }
+template<> const uint64_t &C2Value::Primitive::ref<uint64_t>() const { return u64; }
+template<> const float &C2Value::Primitive::ref<float>() const { return fp; }
+
+template<> constexpr C2Value::Type C2Value::typeFor<int32_t>() { return INT32; }
+template<> constexpr C2Value::Type C2Value::typeFor<int64_t>() { return INT64; }
+template<> constexpr C2Value::Type C2Value::typeFor<uint32_t>() { return UINT32; }
+template<> constexpr C2Value::Type C2Value::typeFor<uint64_t>() { return UINT64; }
+template<> constexpr C2Value::Type C2Value::typeFor<float>() { return FLOAT; }
+
+/**
+ * field descriptor. A field is uniquely defined by an index into a parameter.
+ * (Note: Stream-id is not captured as a field.)
+ *
+ * Ordering of fields is by offset. In case of structures, it is depth first,
+ * with a structure taking an index just before and in addition to its members.
+ */
+struct C2FieldDescriptor {
+//public:
+    /** field types and flags
+     * \note: only 32-bit and 64-bit fields are supported (e.g. no boolean, as that
+     * is represented using INT32).
+     */
+    enum Type : uint32_t {
+        // primitive types
+        INT32   = C2Value::INT32,  ///< 32-bit signed integer
+        UINT32  = C2Value::UINT32, ///< 32-bit unsigned integer
+        INT64   = C2Value::INT64,  ///< 64-bit signed integer
+        UINT64  = C2Value::UINT64, ///< 64-bit signed integer
+        FLOAT   = C2Value::FLOAT,  ///< 32-bit floating point
+
+        // array types
+        STRING = 0x100, ///< fixed-size string (POD)
+        BLOB,           ///< blob. Blobs have no sub-elements and can be thought of as byte arrays;
+                        ///< however, bytes cannot be individually addressed by clients.
+
+        // complex types
+        STRUCT_FLAG = 0x10000, ///< structs. Marked with this flag in addition to their baseIndex.
+    };
+
+    typedef std::pair<C2String, C2Value::Primitive> named_value_type;
+    typedef std::vector<const named_value_type> named_values_type;
+    //typedef std::pair<std::vector<C2String>, std::vector<C2Value::Primitive>> named_values_type;
+
+    /**
+     * Template specialization that returns the named values for a type.
+     *
+     * \todo hide from client.
+     *
+     * \return a vector of name-value pairs.
+     */
+    template<typename B>
+    static named_values_type namedValuesFor(const B &);
+
+    inline C2FieldDescriptor(uint32_t type, uint32_t length, C2StringLiteral name, size_t offset, size_t size)
+        : _mType((Type)type), _mLength(length), _mName(name), _mFieldId(offset, size) { }
+
+    template<typename T, class B=typename std::remove_extent<T>::type>
+    inline C2FieldDescriptor(const T* offset, const char *name)
+        : _mType(this->getType((B*)nullptr)),
+          _mLength(std::is_array<T>::value ? std::extent<T>::value : 1),
+          _mName(name),
+          _mNamedValues(namedValuesFor(*(B*)0)),
+          _mFieldId(offset) {}
+
+/*
+    template<typename T, typename B=typename std::remove_extent<T>::type>
+    inline C2FieldDescriptor<T, B, false>(T* offset, const char *name)
+        : _mType(this->getType((B*)nullptr)),
+          _mLength(std::is_array<T>::value ? std::extent<T>::value : 1),
+          _mName(name),
+          _mFieldId(offset) {}
+*/
+
+    /// \deprecated
+    template<typename T, typename S, class B=typename std::remove_extent<T>::type>
+    constexpr inline C2FieldDescriptor(S*, T S::* field, const char *name)
+        : _mType(this->getType((B*)nullptr)),
+          _mLength(std::is_array<T>::value ? std::extent<T>::value : 1),
+          _mName(name),
+          _mFieldId(&(((S*)0)->*field)) {}
+
+    /// returns the type of this field
+    inline Type type() const { return _mType; }
+    /// returns the length of the field in case it is an array. Returns 0 for
+    /// T[] arrays, returns 1 for T[1] arrays as well as if the field is not an array.
+    inline size_t length() const { return _mLength; }
+    /// returns the name of the field
+    inline C2StringLiteral name() const { return _mName; }
+
+    const named_values_type &namedValues() const { return _mNamedValues; }
+
+#if defined(FRIEND_TEST)
+    friend void PrintTo(const C2FieldDescriptor &, ::std::ostream*);
+    friend bool operator==(const C2FieldDescriptor &, const C2FieldDescriptor &);
+    FRIEND_TEST(C2ParamTest_ParamFieldList, VerifyStruct);
+#endif
+
+private:
+    const Type _mType;
+    const uint32_t _mLength; // the last member can be arbitrary length if it is T[] array,
+                       // extending to the end of the parameter (this is marked with
+                       // 0). T[0]-s are not fields.
+    const C2StringLiteral _mName;
+    const named_values_type _mNamedValues;
+
+    const _C2FieldId _mFieldId;   // field identifier (offset and size)
+
+    // NOTE: We do not capture default value(s) here as that may depend on the component.
+    // NOTE: We also do not capture bestEffort, as 1) this should be true for most fields,
+    // 2) this is at parameter granularity.
+
+    // type resolution
+    inline static Type getType(int32_t*)  { return INT32; }
+    inline static Type getType(uint32_t*) { return UINT32; }
+    inline static Type getType(int64_t*)  { return INT64; }
+    inline static Type getType(uint64_t*) { return UINT64; }
+    inline static Type getType(float*)    { return FLOAT; }
+    inline static Type getType(char*)     { return STRING; }
+    inline static Type getType(uint8_t*)  { return BLOB; }
+
+    template<typename T,
+             class=typename std::enable_if<std::is_enum<T>::value>::type>
+    inline static Type getType(T*) {
+        typename std::underlying_type<T>::type underlying(0);
+        return getType(&underlying);
+    }
+
+    // verify C2Struct by having a fieldList and a baseIndex.
+    template<typename T,
+             class=decltype(T::baseIndex + 1), class=decltype(T::fieldList)>
+    inline static Type getType(T*) {
+        static_assert(!std::is_base_of<C2Param, T>::value, "cannot use C2Params as fields");
+        return (Type)(T::baseIndex | STRUCT_FLAG);
+    }
+};
+
+#define DEFINE_NO_NAMED_VALUES_FOR(type) \
+template<> inline C2FieldDescriptor::named_values_type C2FieldDescriptor::namedValuesFor(const type &) { \
+    return named_values_type(); \
+}
+
+// We cannot subtype constructor for enumerated types so insted define no named values for
+// non-enumerated integral types.
+DEFINE_NO_NAMED_VALUES_FOR(int32_t)
+DEFINE_NO_NAMED_VALUES_FOR(uint32_t)
+DEFINE_NO_NAMED_VALUES_FOR(int64_t)
+DEFINE_NO_NAMED_VALUES_FOR(uint64_t)
+DEFINE_NO_NAMED_VALUES_FOR(uint8_t)
+DEFINE_NO_NAMED_VALUES_FOR(char)
+DEFINE_NO_NAMED_VALUES_FOR(float)
+
+/**
+ * Describes the fields of a structure.
+ */
+struct C2StructDescriptor {
+public:
+    /// Returns the parameter type
+    inline C2Param::BaseIndex baseIndex() const { return _mType.baseIndex(); }
+
+    // Returns the number of fields in this param (not counting any recursive fields).
+    // Must be at least 1 for valid params.
+    inline size_t numFields() const { return _mFields.size(); }
+
+    // Returns the list of immediate fields (not counting any recursive fields).
+    typedef std::vector<const C2FieldDescriptor>::const_iterator field_iterator;
+    inline field_iterator cbegin() const { return _mFields.cbegin(); }
+    inline field_iterator cend() const { return _mFields.cend(); }
+
+    // only supplying const iterator - but these are needed for range based loops
+    inline field_iterator begin() const { return _mFields.cbegin(); }
+    inline field_iterator end() const { return _mFields.cend(); }
+
+    template<typename T>
+    inline C2StructDescriptor(T*)
+        : C2StructDescriptor(T::baseIndex, T::fieldList) { }
+
+    inline C2StructDescriptor(
+            C2Param::BaseIndex type,
+            std::initializer_list<const C2FieldDescriptor> fields)
+        : _mType(type), _mFields(fields) { }
+
+private:
+    const C2Param::BaseIndex _mType;
+    const std::vector<const C2FieldDescriptor> _mFields;
+};
+
+/**
+ * Describes parameters for a component.
+ */
+struct C2ParamDescriptor {
+public:
+    /**
+     * Returns whether setting this param is required to configure this component.
+     * This can only be true for builtin params for platform-defined components (e.g. video and
+     * audio encoders/decoders, video/audio filters).
+     * For vendor-defined components, it can be true even for vendor-defined params,
+     * but it is not recommended, in case the component becomes platform-defined.
+     */
+    inline bool isRequired() const { return _mIsRequired; }
+
+    /**
+     * Returns whether this parameter is persistent. This is always true for C2Tuning and C2Setting,
+     * but may be false for C2Info. If true, this parameter persists across frames and applies to
+     * the current and subsequent frames. If false, this C2Info parameter only applies to the
+     * current frame and is not assumed to have the same value (or even be present) on subsequent
+     * frames, unless it is specified for those frames.
+     */
+    inline bool isPersistent() const { return _mIsPersistent; }
+
+    /// Returns the name of this param.
+    /// This defaults to the underlying C2Struct's name, but could be altered for a component.
+    inline C2String name() const { return _mName; }
+
+    /// Returns the parameter type
+    /// \todo fix this
+    inline C2Param::Type type() const { return _mType; }
+
+    template<typename T>
+    inline C2ParamDescriptor(bool isRequired, C2StringLiteral name, const T*)
+        : _mIsRequired(isRequired),
+          _mIsPersistent(true),
+          _mName(name),
+          _mType(T::typeIndex) { }
+
+    inline C2ParamDescriptor(
+            bool isRequired, C2StringLiteral name, C2Param::Type type)
+        : _mIsRequired(isRequired),
+          _mIsPersistent(true),
+          _mName(name),
+          _mType(type) { }
+
+private:
+    const bool _mIsRequired;
+    const bool _mIsPersistent;
+    const C2String _mName;
+    const C2Param::Type _mType;
+};
+
+/// \ingroup internal
+/// Define a structure without baseIndex.
+#define DEFINE_C2STRUCT_NO_BASE(name) \
+public: \
+    typedef C2##name##Struct _type; /**< type name shorthand */ \
+    const static std::initializer_list<const C2FieldDescriptor> fieldList; /**< structure fields */
+
+/// Define a structure with matching baseIndex.
+#define DEFINE_C2STRUCT(name) \
+public: \
+    enum : uint32_t { baseIndex = kParamIndex##name }; \
+    DEFINE_C2STRUCT_NO_BASE(name)
+
+/// Define a flexible structure with matching baseIndex.
+#define DEFINE_FLEX_C2STRUCT(name, flexMember) \
+public: \
+    FLEX(C2##name##Struct, flexMember) \
+    enum : uint32_t { baseIndex = kParamIndex##name | C2Param::BaseIndex::_kFlexibleFlag }; \
+    DEFINE_C2STRUCT_NO_BASE(name)
+
+/// \ingroup internal
+/// Describe a structure of a templated structure.
+#define DESCRIBE_TEMPLATED_C2STRUCT(strukt, list) \
+    template<> \
+    const std::initializer_list<const C2FieldDescriptor> strukt::fieldList = list;
+
+/// \deprecated
+/// Describe the fields of a structure using an initializer list.
+#define DESCRIBE_C2STRUCT(name, list) \
+    const std::initializer_list<const C2FieldDescriptor> C2##name##Struct::fieldList = list;
+
+/**
+ * Describe a field of a structure.
+ * These must be in order.
+ *
+ * There are two ways to use this macro:
+ *
+ *  ~~~~~~~~~~~~~ (.cpp)
+ *  struct C2VideoWidthStruct {
+ *      int32_t mWidth;
+ *      C2VideoWidthStruct() {} // optional default constructor
+ *      C2VideoWidthStruct(int32_t _width) : mWidth(_width) {}
+ *
+ *      DEFINE_AND_DESCRIBE_C2STRUCT(VideoWidth)
+ *      C2FIELD(mWidth, "width")
+ *  };
+ *  ~~~~~~~~~~~~~
+ *
+ *  ~~~~~~~~~~~~~ (.cpp)
+ *  struct C2VideoWidthStruct {
+ *      int32_t mWidth;
+ *      C2VideoWidthStruct() = default; // optional default constructor
+ *      C2VideoWidthStruct(int32_t _width) : mWidth(_width) {}
+ *
+ *      DEFINE_C2STRUCT(VideoWidth)
+ *  } C2_PACK;
+ *
+ *  DESCRIBE_C2STRUCT(VideoWidth, {
+ *      C2FIELD(mWidth, "width")
+ *  })
+ *  ~~~~~~~~~~~~~
+ *
+ *  For flexible structures (those ending in T[]), use the flexible macros:
+ *
+ *  ~~~~~~~~~~~~~ (.cpp)
+ *  struct C2VideoFlexWidthsStruct {
+ *      int32_t mWidths[];
+ *      C2VideoFlexWidthsStruct(); // must have a default constructor
+ *
+ *  private:
+ *      // may have private constructors taking number of widths as the first argument
+ *      // This is used by the C2Param factory methods, e.g.
+ *      //   C2VideoFlexWidthsGlobalParam::alloc_unique(size_t, int32_t);
+ *      C2VideoFlexWidthsStruct(size_t flexCount, int32_t value) {
+ *          for (size_t i = 0; i < flexCount; ++i) {
+ *              mWidths[i] = value;
+ *          }
+ *      }
+ *
+ *      // If the last argument is T[N] or std::initializer_list<T>, the flexCount will
+ *      // be automatically calculated and passed by the C2Param factory methods, e.g.
+ *      //   int widths[] = { 1, 2, 3 };
+ *      //   C2VideoFlexWidthsGlobalParam::alloc_unique(widths);
+ *      template<unsigned N>
+ *      C2VideoFlexWidthsStruct(size_t flexCount, const int32_t(&init)[N]) {
+ *          for (size_t i = 0; i < flexCount; ++i) {
+ *              mWidths[i] = init[i];
+ *          }
+ *      }
+ *
+ *      DEFINE_AND_DESCRIBE_FLEX_C2STRUCT(VideoFlexWidths, mWidths)
+ *      C2FIELD(mWidths, "widths")
+ *  };
+ *  ~~~~~~~~~~~~~
+ *
+ *  ~~~~~~~~~~~~~ (.cpp)
+ *  struct C2VideoFlexWidthsStruct {
+ *      int32_t mWidths[];
+ *      C2VideoFlexWidthsStruct(); // must have a default constructor
+ *
+ *      DEFINE_FLEX_C2STRUCT(VideoFlexWidths, mWidths)
+ *  } C2_PACK;
+ *
+ *  DESCRIBE_C2STRUCT(VideoFlexWidths, {
+ *      C2FIELD(mWidths, "widths")
+ *  })
+ *  ~~~~~~~~~~~~~
+ *
+ */
+#define C2FIELD(member, name) \
+  C2FieldDescriptor(&((_type*)(nullptr))->member, name),
+
+/// \deprecated
+#define C2SOLE_FIELD(member, name) \
+  C2FieldDescriptor(&_type::member, name, 0)
+
+/// Define a structure with matching baseIndex and start describing its fields.
+/// This must be at the end of the structure definition.
+#define DEFINE_AND_DESCRIBE_C2STRUCT(name) \
+    DEFINE_C2STRUCT(name) }  C2_PACK; \
+    const std::initializer_list<const C2FieldDescriptor> C2##name##Struct::fieldList = {
+
+/// Define a flexible structure with matching baseIndex and start describing its fields.
+/// This must be at the end of the structure definition.
+#define DEFINE_AND_DESCRIBE_FLEX_C2STRUCT(name, flexMember) \
+    DEFINE_FLEX_C2STRUCT(name, flexMember) } C2_PACK; \
+    const std::initializer_list<const C2FieldDescriptor> C2##name##Struct::fieldList = {
+
+/**
+ * Parameter reflector class.
+ *
+ * This class centralizes the description of parameter structures. This can be shared
+ * by multiple components as describing a parameter does not imply support of that
+ * parameter. However, each supported parameter and any dependent structures within
+ * must be described by the parameter reflector provided by a component.
+ */
+class C2ParamReflector {
+public:
+    /**
+     *  Describes a parameter structure.
+     *
+     *  \param[in] paramIndex the base index of the parameter structure
+     *
+     *  \return the description of the parameter structure
+     *  \retval nullptr if the parameter is not supported by this reflector
+     *
+     *  This methods shall not block and return immediately.
+     *
+     *  \note this class does not take a set of indices because we would then prefer
+     *  to also return any dependent structures, and we don't want this logic to be
+     *  repeated in each reflector. Alternately, this could just return a map of all
+     *  descriptions, but we want to conserve memory if client only wants the description
+     *  of a few indices.
+     */
+    virtual std::unique_ptr<C2StructDescriptor> describe(C2Param::BaseIndex paramIndex) = 0;
+
+protected:
+    virtual ~C2ParamReflector() = default;
+};
+
+/**
+ * A useable supported values for a field.
+ *
+ * This can be either a range or a set of values. The range can be linear or geometric with a
+ * clear minimum and maximum value, and can have an optional step size or geometric ratio. Values
+ * can optionally represent flags.
+ *
+ * \note Do not use flags to represent bitfields. Use individual values or separate fields instead.
+ */
+template<typename T>
+struct C2TypedFieldSupportedValues {
+//public:
+    enum Type {
+        RANGE,      ///< a numeric range that can be continuous or discrete
+        VALUES,     ///< a list of values
+        FLAGS       ///< a list of flags that can be OR-ed
+    };
+
+    Type type;
+
+    struct {
+        T min;
+        T max;
+        T step;
+        T nom;
+        T denom;
+    } range;
+    std::vector<T> values;
+
+    C2TypedFieldSupportedValues(T min, T max, T step = T(std::is_floating_point<T>::value ? 0 : 1))
+        : type(RANGE),
+          range{min, max, step, (T)1, (T)1} { }
+
+    C2TypedFieldSupportedValues(T min, T max, T nom, T den) :
+        type(RANGE),
+        range{min, max, (T)0, nom, den} { }
+
+    C2TypedFieldSupportedValues(bool flags, std::initializer_list<T> list) :
+        type(flags ? FLAGS : VALUES),
+        values(list) {}
+};
+
+/**
+ * Generic supported values for a field.
+ *
+ * This can be either a range or a set of values. The range can be linear or geometric with a
+ * clear minimum and maximum value, and can have an optional step size or geometric ratio. Values
+ * can optionally represent flags.
+ *
+ * \note Do not use flags to represent bitfields. Use individual values or separate fields instead.
+ */
+struct C2FieldSupportedValues {
+//public:
+    enum Type {
+        RANGE,      ///< a numeric range that can be continuous or discrete
+        VALUES,     ///< a list of values
+        FLAGS       ///< a list of flags that can be OR-ed
+    };
+
+    Type type;
+
+    typedef C2Value::Primitive Primitive;
+
+    struct {
+        Primitive min;
+        Primitive max;
+        Primitive step;
+        Primitive nom;
+        Primitive denom;
+    } range;
+    std::vector<Primitive> values;
+
+    template<typename T>
+    C2FieldSupportedValues(T min, T max, T step = T(std::is_floating_point<T>::value ? 0 : 1))
+        : type(RANGE),
+          range{min, max, step, (T)1, (T)1} { }
+
+    template<typename T>
+    C2FieldSupportedValues(T min, T max, T nom, T den) :
+        type(RANGE),
+        range{min, max, (T)0, nom, den} { }
+
+    template<typename T>
+    C2FieldSupportedValues(bool flags, std::initializer_list<T> list)
+        : type(flags ? FLAGS : VALUES),
+          range{(T)0, (T)0, (T)0, (T)0, (T)0} {
+        for(T value : list) {
+            values.emplace_back(value);
+        }
+    }
+
+    template<typename T, typename E=decltype(C2FieldDescriptor::namedValuesFor(*(T*)0))>
+    C2FieldSupportedValues(bool flags, const T*)
+        : type(flags ? FLAGS : VALUES),
+          range{(T)0, (T)0, (T)0, (T)0, (T)0} {
+              C2FieldDescriptor::named_values_type named = C2FieldDescriptor::namedValuesFor(*(T*)0);
+        for (const C2FieldDescriptor::named_value_type &item : named) {
+            values.emplace_back(item.second);
+        }
+    }
+};
+
+/// @}
+
+}  // namespace android
+
+#endif  // C2PARAM_H_
diff --git a/media/libstagefright/codec2/include/C2ParamDef.h b/media/libstagefright/codec2/include/C2ParamDef.h
new file mode 100644
index 0000000..f369617
--- /dev/null
+++ b/media/libstagefright/codec2/include/C2ParamDef.h
@@ -0,0 +1,901 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/** \file
+ * Templates used to declare parameters.
+ */
+#ifndef C2PARAM_DEF_H_
+#define C2PARAM_DEF_H_
+
+#include <type_traits>
+
+#include <C2Param.h>
+
+namespace android {
+
+/// \addtogroup Parameters
+/// @{
+
+/* ======================== UTILITY TEMPLATES FOR PARAMETER DEFINITIONS ======================== */
+
+/// \addtogroup internal
+/// @{
+
+/// Helper class that checks if a type has equality and inequality operators.
+struct C2_HIDE _C2Comparable_impl
+{
+    template<typename S, typename=decltype(S() == S())>
+    static std::true_type __testEQ(int);
+    template<typename>
+    static std::false_type __testEQ(...);
+
+    template<typename S, typename=decltype(S() != S())>
+    static std::true_type __testNE(int);
+    template<typename>
+    static std::false_type __testNE(...);
+};
+
+/**
+ * Helper template that returns if a type has equality and inequality operators.
+ *
+ * Use as _C2Comparable<typename S>::value.
+ */
+template<typename S>
+struct C2_HIDE _C2Comparable
+    : public std::integral_constant<bool, decltype(_C2Comparable_impl::__testEQ<S>(0))::value
+                        || decltype(_C2Comparable_impl::__testNE<S>(0))::value> {
+};
+
+///  Helper class that checks if a type has a baseIndex constant.
+struct C2_HIDE _C2BaseIndexHelper_impl
+{
+    template<typename S, int=S::baseIndex>
+    static std::true_type __testBaseIndex(int);
+    template<typename>
+    static std::false_type __testBaseIndex(...);
+};
+
+/// Helper template that verifies a type's baseIndex and creates it if the type does not have one.
+template<typename S, int BaseIndex,
+        bool HasBase=decltype(_C2BaseIndexHelper_impl::__testBaseIndex<S>(0))::value>
+struct C2_HIDE C2BaseIndexOverride {
+    // TODO: what if we allow structs without baseIndex?
+    static_assert(BaseIndex == S::baseIndex, "baseIndex differs from structure");
+};
+
+/// Specialization for types without a baseIndex.
+template<typename S, int BaseIndex>
+struct C2_HIDE C2BaseIndexOverride<S, BaseIndex, false> {
+public:
+    enum : uint32_t {
+        baseIndex = BaseIndex, ///< baseIndex override.
+    };
+};
+
+/// Helper template that adds a baseIndex to a type if it does not have one.
+template<typename S, int BaseIndex>
+struct C2_HIDE C2AddBaseIndex : public S, public C2BaseIndexOverride<S, BaseIndex> {};
+
+/**
+ * \brief Helper class to check struct requirements for parameters.
+ *
+ * Features:
+ *  - verify default constructor, no virtual methods, and no equality operators.
+ *  - expose typeIndex, and non-flex flexSize.
+ */
+template<typename S, int BaseIndex, unsigned TypeIndex>
+struct C2_HIDE C2StructCheck {
+    static_assert(
+            std::is_default_constructible<S>::value, "C2 structure must have default constructor");
+    static_assert(!std::is_polymorphic<S>::value, "C2 structure must not have virtual methods");
+    static_assert(!_C2Comparable<S>::value, "C2 structure must not have operator== or !=");
+
+public:
+    enum : uint32_t {
+        typeIndex = BaseIndex | TypeIndex
+    };
+
+protected:
+    enum : uint32_t {
+        flexSize = 0, // TODO: is this still needed? this may be confusing.
+    };
+};
+
+/// Helper class that checks if a type has an integer flexSize member.
+struct C2_HIDE _C2Flexible_impl {
+    /// specialization for types that have a flexSize member
+    template<typename S, unsigned=S::flexSize>
+    static std::true_type __testFlexSize(int);
+    template<typename>
+    static std::false_type __testFlexSize(...);
+};
+
+/// Helper template that returns if a type has an integer flexSize member.
+template<typename S>
+struct C2_HIDE _C2Flexible
+    : public std::integral_constant<bool, decltype(_C2Flexible_impl::__testFlexSize<S>(0))::value> {
+};
+
+/// Macro to test if a type is flexible (has a flexSize member).
+#define IF_FLEXIBLE(S) ENABLE_IF(_C2Flexible<S>::value)
+/// Shorthand for std::enable_if
+#define ENABLE_IF(cond) typename std::enable_if<cond>::type
+
+/// Helper template that exposes the flexible subtype of a struct.
+template<typename S, typename E=void>
+struct C2_HIDE _C2FlexHelper {
+    typedef void flexType;
+    enum : uint32_t { flexSize = 0 };
+};
+
+/// Specialization for flexible types.
+template<typename S>
+struct C2_HIDE _C2FlexHelper<S,
+        typename std::enable_if<!std::is_void<typename S::flexMemberType>::value>::type> {
+    typedef typename _C2FlexHelper<typename S::flexMemberType>::flexType flexType;
+    enum : uint32_t { flexSize = _C2FlexHelper<typename S::flexMemberType>::flexSize };
+};
+
+/// Specialization for flex arrays.
+template<typename S>
+struct C2_HIDE _C2FlexHelper<S[],
+        typename std::enable_if<std::is_void<typename _C2FlexHelper<S>::flexType>::value>::type> {
+    typedef S flexType;
+    enum : uint32_t { flexSize = sizeof(S) };
+};
+
+/**
+ * \brief Helper class to check flexible struct requirements and add common operations.
+ *
+ * Features:
+ *  - expose baseIndex and fieldList (this is normally inherited from the struct, but flexible
+ *    structs cannot be base classes and thus inherited from)
+ *  - disable copy assignment and construction (TODO: this is already done in the FLEX macro for the
+ *    flexible struct, so may not be needed here)
+ */
+template<typename S, int BaseIndex, unsigned TypeIndex>
+struct C2_HIDE C2FlexStructCheck : public C2StructCheck<S, BaseIndex, TypeIndex> {
+public:
+    enum : uint32_t {
+        /// \hideinitializer
+        baseIndex = BaseIndex | C2Param::BaseIndex::_kFlexibleFlag, ///< flexible struct base-index
+    };
+
+    const static std::initializer_list<const C2FieldDescriptor> fieldList; // TODO assign here
+
+    // default constructor needed because of the disabled copy constructor
+    inline C2FlexStructCheck() = default;
+
+protected:
+    // cannot copy flexible params
+    C2FlexStructCheck(const C2FlexStructCheck<S, BaseIndex, TypeIndex> &) = delete;
+    C2FlexStructCheck& operator= (const C2FlexStructCheck<S, BaseIndex, TypeIndex> &) = delete;
+
+    // constants used for helper methods
+    enum : uint32_t {
+        /// \hideinitializer
+        flexSize = _C2FlexHelper<S>::flexSize, ///< size of flexible type
+        /// \hideinitializer
+        maxSize = (uint32_t)std::min((size_t)UINT32_MAX, SIZE_MAX), // TODO: is this always u32 max?
+        /// \hideinitializer
+        baseSize = sizeof(S) + sizeof(C2Param), ///< size of the base param
+    };
+
+    /// returns the allocated size of this param with flexCount, or 0 if it would overflow.
+    inline static size_t calcSize(size_t flexCount, size_t size = baseSize) {
+        if (flexCount <= (maxSize - size) / S::flexSize) {
+            return size + S::flexSize * flexCount;
+        }
+        return 0;
+    }
+
+    /// dynamic new operator usable for params of type S
+    inline void* operator new(size_t size, size_t flexCount) noexcept {
+        // TODO: assert(size == baseSize);
+        size = calcSize(flexCount, size);
+        if (size > 0) {
+            return ::operator new(size);
+        }
+        return nullptr;
+    }
+};
+
+// TODO: this probably does not work.
+/// Expose fieldList from subClass;
+template<typename S, int BaseIndex, unsigned TypeIndex>
+const std::initializer_list<const C2FieldDescriptor> C2FlexStructCheck<S, BaseIndex, TypeIndex>::fieldList = S::fieldList;
+
+/// Define From() cast operators for params.
+#define DEFINE_CAST_OPERATORS(_type) \
+    inline static _type* From(C2Param *other) { \
+        return (_type*)C2Param::ifSuitable( \
+                other, sizeof(_type),_type::typeIndex, _type::flexSize, \
+                (_type::typeIndex & T::Index::kDirUndefined) != T::Index::kDirUndefined); \
+    } \
+    inline static const _type* From(const C2Param *other) { \
+        return const_cast<const _type*>(From(const_cast<C2Param *>(other))); \
+    } \
+    inline static _type* From(std::nullptr_t) { return nullptr; } \
+
+/**
+ * Define flexible allocators (alloc_shared or alloc_unique) for flexible params.
+ *  - P::alloc_xyz(flexCount, args...): allocate for given flex-count.
+ *  - P::alloc_xyz(args..., T[]): allocate for size of (and with) init array.
+ *  - P::alloc_xyz(T[]): allocate for size of (and with) init array with no other args.
+ *  - P::alloc_xyz(args..., std::initializer_list<T>): allocate for size of (and with) initializer
+ *    list.
+ */
+#define DEFINE_FLEXIBLE_ALLOC(_type, S, ptr) \
+    template<typename ...Args> \
+    inline static std::ptr##_ptr<_type> alloc_##ptr(size_t flexCount, const Args(&... args)) { \
+        return std::ptr##_ptr<_type>(new(flexCount) _type(flexCount, args...)); \
+    } \
+    /* NOTE: unfortunately this is not supported by clang yet */ \
+    template<typename ...Args, typename U=typename S::flexType, unsigned N> \
+    inline static std::ptr##_ptr<_type> alloc_##ptr(const Args(&... args), const U(&init)[N]) { \
+        return std::ptr##_ptr<_type>(new(N) _type(N, args..., init)); \
+    } \
+    /* so for now, specialize for no args */ \
+    template<typename U=typename S::flexType, unsigned N> \
+    inline static std::ptr##_ptr<_type> alloc_##ptr(const U(&init)[N]) { \
+        return std::ptr##_ptr<_type>(new(N) _type(N, init)); \
+    } \
+    template<typename ...Args, typename U=typename S::flexType> \
+    inline static std::ptr##_ptr<_type> alloc_##ptr( \
+            const Args(&... args), const std::initializer_list<U> &init) { \
+        return std::ptr##_ptr<_type>(new(init.size()) _type(init.size(), args..., init)); \
+    } \
+
+/**
+ * Define flexible methods alloc_shared, alloc_unique and flexCount.
+ */
+#define DEFINE_FLEXIBLE_METHODS(_type, S) \
+    DEFINE_FLEXIBLE_ALLOC(_type, S, shared) \
+    DEFINE_FLEXIBLE_ALLOC(_type, S, unique) \
+    inline size_t flexCount() const { \
+        static_assert(sizeof(_type) == _type::baseSize, "incorrect baseSize"); \
+        size_t sz = this->size(); \
+        if (sz >= sizeof(_type)) { \
+            return (sz - sizeof(_type)) / _type::flexSize; \
+        } \
+        return 0; \
+    } \
+
+/// Mark flexible member variable and make structure flexible.
+#define FLEX(cls, m) \
+    C2_DO_NOT_COPY(cls) \
+private: \
+    C2PARAM_MAKE_FRIENDS \
+    /* default constructor with flexCount */ \
+    inline cls(size_t) : cls() {} \
+    /** \if 0 */ \
+    template<typename, typename> friend struct _C2FlexHelper; \
+    typedef decltype(m) flexMemberType; \
+public: \
+    /* constexpr static flexMemberType cls::* flexMember = &cls::m; */ \
+    typedef typename _C2FlexHelper<flexMemberType>::flexType flexType; \
+    static_assert(\
+            !std::is_void<flexType>::value, \
+            "member is not flexible, or a flexible array of a flexible type"); \
+    enum : uint32_t { flexSize = _C2FlexHelper<flexMemberType>::flexSize }; \
+    /** \endif */ \
+
+/// @}
+
+/**
+ * Global-parameter template.
+ *
+ * Base template to define a global setting/tuning or info based on a structure and
+ * an optional BaseIndex. Global parameters are not tied to a port (input or output).
+ *
+ * Parameters wrap structures by prepending a (parameter) header. The fields of the wrapped
+ * structure can be accessed directly, and constructors and potential public methods are also
+ * wrapped.
+ *
+ * \tparam T param type C2Setting, C2Tuning or C2Info
+ * \tparam S wrapped structure
+ * \tparam BaseIndex optional base-index override. Must be specified for common/reused structures.
+ */
+template<typename T, typename S, int BaseIndex=S::baseIndex, class Flex=void>
+struct C2_HIDE C2GlobalParam : public T, public S, public C2BaseIndexOverride<S, BaseIndex>,
+        public C2StructCheck<S, BaseIndex, T::indexFlags | T::Type::kDirGlobal> {
+private:
+    typedef C2GlobalParam<T, S, BaseIndex> _type;
+
+public:
+    /// Wrapper around base structure's constructor.
+    template<typename ...Args>
+    inline C2GlobalParam(const Args(&... args)) : T(sizeof(_type), _type::typeIndex), S(args...) { }
+
+    DEFINE_CAST_OPERATORS(_type)
+};
+
+/**
+ * Global-parameter template for flexible structures.
+ *
+ * Base template to define a global setting/tuning or info based on a flexible structure and
+ * an optional BaseIndex. Global parameters are not tied to a port (input or output).
+ *
+ * \tparam T param type C2Setting, C2Tuning or C2Info
+ * \tparam S wrapped flexible structure
+ * \tparam BaseIndex optional base-index override. Must be specified for common/reused structures.
+ *
+ * Parameters wrap structures by prepending a (parameter) header. The fields and methods of flexible
+ * structures can be accessed via the m member variable; however, the constructors of the structure
+ * are wrapped directly. (This is because flexible types cannot be subclassed.)
+ */
+template<typename T, typename S, int BaseIndex>
+struct C2_HIDE C2GlobalParam<T, S, BaseIndex, IF_FLEXIBLE(S)>
+    : public T, public C2FlexStructCheck<S, BaseIndex, T::indexFlags | T::Type::kDirGlobal> {
+private:
+    typedef C2GlobalParam<T, S, BaseIndex> _type;
+
+    /// Wrapper around base structure's constructor.
+    template<typename ...Args>
+    inline C2GlobalParam(size_t flexCount, const Args(&... args))
+        : T(_type::calcSize(flexCount), _type::typeIndex), m(flexCount, args...) { }
+
+public:
+    S m; ///< wrapped flexible structure
+
+    DEFINE_FLEXIBLE_METHODS(_type, S)
+    DEFINE_CAST_OPERATORS(_type)
+};
+
+/**
+ * Port-parameter template.
+ *
+ * Base template to define a port setting/tuning or info based on a structure and
+ * an optional BaseIndex. Port parameters are tied to a port (input or output), but not to a
+ * specific stream.
+ *
+ * \tparam T param type C2Setting, C2Tuning or C2Info
+ * \tparam S wrapped structure
+ * \tparam BaseIndex optional base-index override. Must be specified for common/reused structures.
+ *
+ * Parameters wrap structures by prepending a (parameter) header. The fields of the wrapped
+ * structure can be accessed directly, and constructors and potential public methods are also
+ * wrapped.
+ *
+ * There are 3 flavors of port parameters: unspecified, input and output. Parameters with
+ * unspecified port expose a setPort method, and add an initial port parameter to the constructor.
+ */
+template<typename T, typename S, int BaseIndex=S::baseIndex, class Flex=void>
+struct C2_HIDE C2PortParam : public T, public S, public C2BaseIndexOverride<S, BaseIndex>,
+        private C2StructCheck<S, BaseIndex, T::indexFlags | T::Index::kDirUndefined> {
+private:
+    typedef C2PortParam<T, S, BaseIndex> _type;
+
+public:
+    /// Default constructor.
+    inline C2PortParam() : T(sizeof(_type), _type::typeIndex) { }
+    template<typename ...Args>
+    /// Wrapper around base structure's constructor while specifying port/direction.
+    inline C2PortParam(bool _output, const Args(&... args))
+        : T(sizeof(_type), _output ? output::typeIndex : input::typeIndex), S(args...) { }
+    /// Set port/direction.
+    inline void setPort(bool output) { C2Param::setPort(output); }
+
+    DEFINE_CAST_OPERATORS(_type)
+
+    /// Specialization for an input port parameter.
+    struct input : public T, public S, public C2BaseIndexOverride<S, BaseIndex>,
+            public C2StructCheck<S, BaseIndex, T::indexFlags | T::Index::kDirInput> {
+        /// Wrapper around base structure's constructor.
+        template<typename ...Args>
+        inline input(const Args(&... args)) : T(sizeof(_type), input::typeIndex), S(args...) { }
+
+        DEFINE_CAST_OPERATORS(input)
+
+    };
+
+    /// Specialization for an output port parameter.
+    struct output : public T, public S, public C2BaseIndexOverride<S, BaseIndex>,
+            public C2StructCheck<S, BaseIndex, T::indexFlags | T::Index::kDirOutput> {
+        /// Wrapper around base structure's constructor.
+        template<typename ...Args>
+        inline output(const Args(&... args)) : T(sizeof(_type), output::typeIndex), S(args...) { }
+
+        DEFINE_CAST_OPERATORS(output)
+    };
+};
+
+/**
+ * Port-parameter template for flexible structures.
+ *
+ * Base template to define a port setting/tuning or info based on a flexible structure and
+ * an optional BaseIndex. Port parameters are tied to a port (input or output), but not to a
+ * specific stream.
+ *
+ * \tparam T param type C2Setting, C2Tuning or C2Info
+ * \tparam S wrapped flexible structure
+ * \tparam BaseIndex optional base-index override. Must be specified for common/reused structures.
+ *
+ * Parameters wrap structures by prepending a (parameter) header. The fields and methods of flexible
+ * structures can be accessed via the m member variable; however, the constructors of the structure
+ * are wrapped directly. (This is because flexible types cannot be subclassed.)
+ *
+ * There are 3 flavors of port parameters: unspecified, input and output. Parameters with
+ * unspecified port expose a setPort method, and add an initial port parameter to the constructor.
+ */
+template<typename T, typename S, int BaseIndex>
+struct C2_HIDE C2PortParam<T, S, BaseIndex, IF_FLEXIBLE(S)>
+    : public T, public C2FlexStructCheck<S, BaseIndex, T::indexFlags | T::Type::kDirUndefined> {
+private:
+    typedef C2PortParam<T, S, BaseIndex> _type;
+
+    /// Default constructor for basic allocation: new(flexCount) P.
+    inline C2PortParam(size_t flexCount) : T(_type::calcSize(flexCount), _type::typeIndex) { }
+    template<typename ...Args>
+    /// Wrapper around base structure's constructor while also specifying port/direction.
+    inline C2PortParam(size_t flexCount, bool _output, const Args(&... args))
+        : T(_type::calcSize(flexCount), _output ? output::typeIndex : input::typeIndex),
+          m(flexCount, args...) { }
+
+public:
+    /// Set port/direction.
+    inline void setPort(bool output) { C2Param::setPort(output); }
+
+    S m; ///< wrapped flexible structure
+
+    DEFINE_FLEXIBLE_METHODS(_type, S)
+    DEFINE_CAST_OPERATORS(_type)
+
+    /// Specialization for an input port parameter.
+    struct input : public T, public C2BaseIndexOverride<S, BaseIndex>,
+            public C2FlexStructCheck<S, BaseIndex, T::indexFlags | T::Index::kDirInput> {
+    private:
+        /// Wrapper around base structure's constructor while also specifying port/direction.
+        template<typename ...Args>
+        inline input(size_t flexCount, const Args(&... args))
+            : T(_type::calcSize(flexCount), input::typeIndex), m(flexCount, args...) { }
+
+    public:
+        S m; ///< wrapped flexible structure
+
+        DEFINE_FLEXIBLE_METHODS(input, S)
+        DEFINE_CAST_OPERATORS(input)
+    };
+
+    /// Specialization for an output port parameter.
+    struct output : public T, public C2BaseIndexOverride<S, BaseIndex>,
+            public C2FlexStructCheck<S, BaseIndex, T::indexFlags | T::Index::kDirOutput> {
+    private:
+        /// Wrapper around base structure's constructor while also specifying port/direction.
+        template<typename ...Args>
+        inline output(size_t flexCount, const Args(&... args))
+            : T(_type::calcSize(flexCount), output::typeIndex), m(flexCount, args...) { }
+
+    public:
+        S m; ///< wrapped flexible structure
+
+        DEFINE_FLEXIBLE_METHODS(output, S)
+        DEFINE_CAST_OPERATORS(output)
+    };
+};
+
+/**
+ * Stream-parameter template.
+ *
+ * Base template to define a stream setting/tuning or info based on a structure and
+ * an optional BaseIndex. Stream parameters are tied to a specific stream on a port (input or
+ * output).
+ *
+ * \tparam T param type C2Setting, C2Tuning or C2Info
+ * \tparam S wrapped structure
+ * \tparam BaseIndex optional base-index override. Must be specified for common/reused structures.
+ *
+ * Parameters wrap structures by prepending a (parameter) header. The fields of the wrapped
+ * structure can be accessed directly, and constructors and potential public methods are also
+ * wrapped.
+ *
+ * There are 3 flavors of stream parameters: unspecified port, input and output. All of these expose
+ * a setStream method and an extra initial streamID parameter for the constructor. Moreover,
+ * parameters with unspecified port expose a setPort method, and add an additional initial port
+ * parameter to the constructor.
+ */
+template<typename T, typename S, int BaseIndex=S::baseIndex, class Flex=void>
+struct C2_HIDE C2StreamParam : public T, public S, public C2BaseIndexOverride<S, BaseIndex>,
+        private C2StructCheck<S, BaseIndex,
+                T::indexFlags | T::Index::kStreamFlag | T::Index::kDirUndefined> {
+private:
+    typedef C2StreamParam<T, S, BaseIndex> _type;
+
+public:
+    /// Default constructor. Port/direction and stream-ID is undefined.
+    inline C2StreamParam() : T(sizeof(_type), _type::typeIndex) { }
+    /// Wrapper around base structure's constructor while also specifying port/direction and
+    /// stream-ID.
+    template<typename ...Args>
+    inline C2StreamParam(bool _output, unsigned stream, const Args(&... args))
+        : T(sizeof(_type), _output ? output::typeIndex : input::typeIndex, stream),
+          S(args...) { }
+    /// Set port/direction.
+    inline void setPort(bool output) { C2Param::setPort(output); }
+    /// Set stream-id. \retval true if the stream-id was successfully set.
+    inline bool setStream(unsigned stream) { return C2Param::setStream(stream); }
+
+    DEFINE_CAST_OPERATORS(_type)
+
+    /// Specialization for an input stream parameter.
+    struct input : public T, public S, public C2BaseIndexOverride<S, BaseIndex>,
+            public C2StructCheck<S, BaseIndex,
+                    T::indexFlags | T::Index::kStreamFlag | T::Type::kDirInput> {
+        /// Default constructor. Stream-ID is undefined.
+        inline input() : T(sizeof(_type), input::typeIndex) { }
+        /// Wrapper around base structure's constructor while also specifying stream-ID.
+        template<typename ...Args>
+        inline input(unsigned stream, const Args(&... args))
+            : T(sizeof(_type), input::typeIndex, stream), S(args...) { }
+        /// Set stream-id. \retval true if the stream-id was successfully set.
+        inline bool setStream(unsigned stream) { return C2Param::setStream(stream); }
+
+        DEFINE_CAST_OPERATORS(input)
+    };
+
+    /// Specialization for an output stream parameter.
+    struct output : public T, public S, public C2BaseIndexOverride<S, BaseIndex>,
+            public C2StructCheck<S, BaseIndex,
+                    T::indexFlags | T::Index::kStreamFlag | T::Type::kDirOutput> {
+        /// Default constructor. Stream-ID is undefined.
+        inline output() : T(sizeof(_type), output::typeIndex) { }
+        /// Wrapper around base structure's constructor while also specifying stream-ID.
+        template<typename ...Args>
+        inline output(unsigned stream, const Args(&... args))
+            : T(sizeof(_type), output::typeIndex, stream), S(args...) { }
+        /// Set stream-id. \retval true if the stream-id was successfully set.
+        inline bool setStream(unsigned stream) { return C2Param::setStream(stream); }
+
+        DEFINE_CAST_OPERATORS(output)
+    };
+};
+
+/**
+ * Stream-parameter template for flexible structures.
+ *
+ * Base template to define a stream setting/tuning or info based on a flexible structure and
+ * an optional BaseIndex. Stream parameters are tied to a specific stream on a port (input or
+ * output).
+ *
+ * \tparam T param type C2Setting, C2Tuning or C2Info
+ * \tparam S wrapped flexible structure
+ * \tparam BaseIndex optional base-index override. Must be specified for common/reused structures.
+ *
+ * Parameters wrap structures by prepending a (parameter) header. The fields and methods of flexible
+ * structures can be accessed via the m member variable; however, the constructors of the structure
+ * are wrapped directly. (This is because flexible types cannot be subclassed.)
+ *
+ * There are 3 flavors of stream parameters: unspecified port, input and output. All of these expose
+ * a setStream method and an extra initial streamID parameter for the constructor. Moreover,
+ * parameters with unspecified port expose a setPort method, and add an additional initial port
+ * parameter to the constructor.
+ */
+template<typename T, typename S, int BaseIndex>
+struct C2_HIDE C2StreamParam<T, S, BaseIndex, IF_FLEXIBLE(S)>
+    : public T, public C2BaseIndexOverride<S, BaseIndex>,
+      private C2FlexStructCheck<S, BaseIndex,
+              T::indexFlags | T::Index::kStreamFlag | T::Index::kDirUndefined> {
+private:
+    typedef C2StreamParam<T, S> _type;
+    /// Default constructor. Port/direction and stream-ID is undefined.
+    inline C2StreamParam(size_t flexCount) : T(_type::calcSize(flexCount), _type::typeIndex, 0u) { }
+    /// Wrapper around base structure's constructor while also specifying port/direction and
+    /// stream-ID.
+    template<typename ...Args>
+    inline C2StreamParam(size_t flexCount, bool _output, unsigned stream, const Args(&... args))
+        : T(_type::calcSize(flexCount), _output ? output::typeIndex : input::typeIndex, stream),
+          m(flexCount, args...) { }
+
+public:
+    S m; ///< wrapped flexible structure
+
+    /// Set port/direction.
+    inline void setPort(bool output) { C2Param::setPort(output); }
+    /// Set stream-id. \retval true if the stream-id was successfully set.
+    inline bool setStream(unsigned stream) { return C2Param::setStream(stream); }
+
+    DEFINE_FLEXIBLE_METHODS(_type, S)
+    DEFINE_CAST_OPERATORS(_type)
+
+    /// Specialization for an input stream parameter.
+    struct input : public T, public C2BaseIndexOverride<S, BaseIndex>,
+            public C2FlexStructCheck<S, BaseIndex,
+                    T::indexFlags | T::Index::kStreamFlag | T::Type::kDirInput> {
+    private:
+        /// Default constructor. Stream-ID is undefined.
+        inline input(size_t flexCount) : T(_type::calcSize(flexCount), input::typeIndex) { }
+        /// Wrapper around base structure's constructor while also specifying stream-ID.
+        template<typename ...Args>
+        inline input(size_t flexCount, unsigned stream, const Args(&... args))
+            : T(_type::calcSize(flexCount), input::typeIndex, stream), m(flexCount, args...) { }
+
+    public:
+        S m; ///< wrapped flexible structure
+
+        /// Set stream-id. \retval true if the stream-id was successfully set.
+        inline bool setStream(unsigned stream) { return C2Param::setStream(stream); }
+
+        DEFINE_FLEXIBLE_METHODS(input, S)
+        DEFINE_CAST_OPERATORS(input)
+    };
+
+    /// Specialization for an output stream parameter.
+    struct output : public T, public C2BaseIndexOverride<S, BaseIndex>,
+            public C2FlexStructCheck<S, BaseIndex,
+                    T::indexFlags | T::Index::kStreamFlag | T::Type::kDirOutput> {
+    private:
+        /// Default constructor. Stream-ID is undefined.
+        inline output(size_t flexCount) : T(_type::calcSize(flexCount), output::typeIndex) { }
+        /// Wrapper around base structure's constructor while also specifying stream-ID.
+        template<typename ...Args>
+        inline output(size_t flexCount, unsigned stream, const Args(&... args))
+            : T(_type::calcSize(flexCount), output::typeIndex, stream), m(flexCount, args...) { }
+
+    public:
+        S m; ///< wrapped flexible structure
+
+        /// Set stream-id. \retval true if the stream-id was successfully set.
+        inline bool setStream(unsigned stream) { return C2Param::setStream(stream); }
+
+        DEFINE_FLEXIBLE_METHODS(output, S)
+        DEFINE_CAST_OPERATORS(output)
+    };
+};
+
+/* ======================== SIMPLE VALUE PARAMETERS ======================== */
+
+/**
+ * \ingroup internal
+ * A structure template encapsulating a single element with default constructors and no base-index.
+ */
+template<typename T>
+struct C2SimpleValueStruct {
+    T mValue; ///< simple value of the structure
+    // Default constructor.
+    inline C2SimpleValueStruct() = default;
+    // Constructor with an initial value.
+    inline C2SimpleValueStruct(T value) : mValue(value) {}
+    DEFINE_C2STRUCT_NO_BASE(SimpleValue)
+};
+
+// TODO: move this and next to some generic place
+/**
+ * Interface to a block of (mapped) memory containing an array of some type (T).
+ */
+template<typename T>
+struct C2MemoryBlock {
+    /// \returns the number of elements in this block.
+    virtual size_t size() const = 0;
+    /// \returns a const pointer to the start of this block. Care must be taken to not read outside
+    /// the block.
+    virtual const T *data() const = 0; // TODO: should this be friend access only in some C2Memory module?
+    /// \returns a pointer to the start of this block. Care must be taken to not read or write
+    /// outside the block.
+    inline T *data() { return const_cast<T*>(data()); }
+protected:
+    // TODO: for now it should never be deleted as C2MemoryBlock
+    virtual ~C2MemoryBlock() = default;
+};
+
+/**
+ * Interface to a block of memory containing a constant (constexpr) array of some type (T).
+ */
+template<typename T>
+struct C2ConstMemoryBlock : public C2MemoryBlock<T> {
+    virtual const T * data() const { return mData; }
+    virtual size_t size() const { return mSize; }
+
+    /// Constructor.
+    template<unsigned N>
+    inline constexpr C2ConstMemoryBlock(const T(&init)[N]) : mData(init), mSize(N) {}
+
+private:
+    const T *mData;
+    const size_t mSize;
+};
+
+/// \addtogroup internal
+/// @{
+
+/// Helper class to initialize flexible arrays with various initalizers.
+struct _C2ValueArrayHelper {
+    // char[]-s are used as null terminated strings, so the last element is never inited.
+
+    /// Initialize a flexible array using a constexpr memory block.
+    template<typename T>
+    static void init(T(&array)[], size_t arrayLen, const C2MemoryBlock<T> &block) {
+        // reserve last element for terminal 0 for strings
+        if (arrayLen && std::is_same<T, char>::value) {
+            --arrayLen;
+        }
+        if (block.data()) {
+            memcpy(array, block.data(), std::min(arrayLen, block.size()) * sizeof(T));
+        }
+    }
+
+    /// Initialize a flexible array using an initializer list.
+    template<typename T>
+    static void init(T(&array)[], size_t arrayLen, const std::initializer_list<T> &init) {
+        size_t ix = 0;
+        // reserve last element for terminal 0 for strings
+        if (arrayLen && std::is_same<T, char>::value) {
+            --arrayLen;
+        }
+        for (const T &item : init) {
+            if (ix == arrayLen) {
+                break;
+            }
+            array[ix++] = item;
+        }
+    }
+
+    /// Initialize a flexible array using another flexible array.
+    template<typename T, unsigned N>
+    static void init(T(&array)[], size_t arrayLen, const T(&str)[N]) {
+        // reserve last element for terminal 0 for strings
+        if (arrayLen && std::is_same<T, char>::value) {
+            --arrayLen;
+        }
+        if (arrayLen) {
+            strncpy(array, str, std::min(arrayLen, (size_t)N));
+        }
+    }
+};
+
+/**
+ * Specialization for a flexible blob and string arrays. A structure template encapsulating a single
+ * flexible array member with default flexible constructors and no base-index. This type cannot be
+ * constructed on its own as it's size is 0.
+ *
+ * \internal This is different from C2SimpleArrayStruct<T[]> simply because its member has the name
+ * as mValue to reflect this is a single value.
+ */
+template<typename T>
+struct C2SimpleValueStruct<T[]> {
+    static_assert(std::is_same<T, char>::value || std::is_same<T, uint8_t>::value,
+                  "C2SimpleValueStruct<T[]> is only for BLOB or STRING");
+    T mValue[];
+
+    inline C2SimpleValueStruct() = default;
+    DEFINE_C2STRUCT_NO_BASE(SimpleValue)
+    FLEX(C2SimpleValueStruct, mValue)
+
+private:
+    inline C2SimpleValueStruct(size_t flexCount, const C2MemoryBlock<T> &block) {
+        _C2ValueArrayHelper::init(mValue, flexCount, block);
+    }
+
+    inline C2SimpleValueStruct(size_t flexCount, const std::initializer_list<T> &init) {
+        _C2ValueArrayHelper::init(mValue, flexCount, init);
+    }
+
+    template<unsigned N>
+    inline C2SimpleValueStruct(size_t flexCount, const T(&init)[N]) {
+        _C2ValueArrayHelper::init(mValue, flexCount, init);
+    }
+};
+
+/// @}
+
+/**
+ * A structure template encapsulating a single flexible array element of a specific type (T) with
+ * default constructors and no base-index. This type cannot be constructed on its own as it's size
+ * is 0. Instead, it is meant to be used as a parameter, e.g.
+ *
+ *   typedef C2StreamParam<C2Info, C2SimpleArrayStruct<C2MyFancyStruct>,
+ *           kParamIndexMyFancyArrayStreamParam> C2MyFancyArrayStreamInfo;
+ */
+template<typename T>
+struct C2SimpleArrayStruct {
+    static_assert(!std::is_same<T, char>::value && !std::is_same<T, uint8_t>::value,
+                  "use C2SimpleValueStruct<T[]> is for BLOB or STRING");
+
+    T mValues[]; ///< array member
+    /// Default constructor
+    inline C2SimpleArrayStruct() = default;
+    DEFINE_C2STRUCT_NO_BASE(SimpleArray)
+    FLEX(C2SimpleArrayStruct, mValues)
+
+private:
+    /// Construct from a C2MemoryBlock.
+    /// Used only by the flexible parameter allocators (alloc_unique & alloc_shared).
+    inline C2SimpleArrayStruct(size_t flexCount, const C2MemoryBlock<T> &block) {
+        _C2ValueArrayHelper::init(mValues, flexCount, block);
+    }
+
+    /// Construct from an initializer list.
+    /// Used only by the flexible parameter allocators (alloc_unique & alloc_shared).
+    inline C2SimpleArrayStruct(size_t flexCount, const std::initializer_list<T> &init) {
+        _C2ValueArrayHelper::init(mValues, flexCount, init);
+    }
+
+    /// Construct from another flexible array.
+    /// Used only by the flexible parameter allocators (alloc_unique & alloc_shared).
+    template<unsigned N>
+    inline C2SimpleArrayStruct(size_t flexCount, const T(&init)[N]) {
+        _C2ValueArrayHelper::init(mValues, flexCount, init);
+    }
+};
+
+/**
+ * \addtogroup simplevalue Simple value and array structures.
+ * @{
+ *
+ * Simple value structures.
+ *
+ * Structures containing a single simple value. These can be reused to easily define simple
+ * parameters of various types:
+ *
+ *   typedef C2PortParam<C2Tuning, C2Int32Value, kParamIndexMyIntegerPortParam>
+ *           C2MyIntegerPortParamTuning;
+ *
+ * They contain a single member (mValue or mValues) that is described as "value" or "values".
+ */
+/// A 32-bit signed integer parameter in mValue, described as "value"
+typedef C2SimpleValueStruct<int32_t> C2Int32Value;
+/// A 32-bit signed integer array parameter in mValues, described as "values"
+typedef C2SimpleArrayStruct<int32_t> C2Int32Array;
+/// A 32-bit unsigned integer parameter in mValue, described as "value"
+typedef C2SimpleValueStruct<uint32_t> C2Uint32Value;
+/// A 32-bit unsigned integer array parameter in mValues, described as "values"
+typedef C2SimpleArrayStruct<uint32_t> C2Uint32Array;
+/// A 64-bit signed integer parameter in mValue, described as "value"
+typedef C2SimpleValueStruct<int64_t> C2Int64Value;
+/// A 64-bit signed integer array parameter in mValues, described as "values"
+typedef C2SimpleArrayStruct<int64_t> C2Int64Array;
+/// A 64-bit unsigned integer parameter in mValue, described as "value"
+typedef C2SimpleValueStruct<uint64_t> C2Uint64Value;
+/// A 64-bit unsigned integer array parameter in mValues, described as "values"
+typedef C2SimpleArrayStruct<uint64_t> C2Uint64Array;
+/// A float parameter in mValue, described as "value"
+typedef C2SimpleValueStruct<float> C2FloatValue;
+/// A float array parameter in mValues, described as "values"
+typedef C2SimpleArrayStruct<float> C2FloatArray;
+/// A blob flexible parameter in mValue, described as "value"
+typedef C2SimpleValueStruct<uint8_t[]> C2BlobValue;
+/// A string flexible parameter in mValue, described as "value"
+typedef C2SimpleValueStruct<char[]> C2StringValue;
+
+#if 1
+template<typename T>
+const std::initializer_list<const C2FieldDescriptor> C2SimpleValueStruct<T>::fieldList = { C2FIELD(mValue, "value") };
+template<typename T>
+const std::initializer_list<const C2FieldDescriptor> C2SimpleValueStruct<T[]>::fieldList = { C2FIELD(mValue, "value") };
+template<typename T>
+const std::initializer_list<const C2FieldDescriptor> C2SimpleArrayStruct<T>::fieldList = { C2FIELD(mValues, "values") };
+#else
+// This seem to be able to be handled by the template above
+DESCRIBE_TEMPLATED_C2STRUCT(C2SimpleValueStruct<int32_t>, { C2FIELD(mValue, "value") });
+DESCRIBE_TEMPLATED_C2STRUCT(C2SimpleValueStruct<uint32_t>, { C2FIELD(mValue, "value") });
+DESCRIBE_TEMPLATED_C2STRUCT(C2SimpleValueStruct<int64_t>, { C2FIELD(mValue, "value") });
+DESCRIBE_TEMPLATED_C2STRUCT(C2SimpleValueStruct<uint64_t>, { C2FIELD(mValue, "value") });
+DESCRIBE_TEMPLATED_C2STRUCT(C2SimpleValueStruct<float>, { C2FIELD(mValue, "value") });
+DESCRIBE_TEMPLATED_C2STRUCT(C2SimpleValueStruct<uint8_t[]>, { C2FIELD(mValue, "value") });
+DESCRIBE_TEMPLATED_C2STRUCT(C2SimpleValueStruct<char[]>, { C2FIELD(mValue, "value") });
+DESCRIBE_TEMPLATED_C2STRUCT(C2SimpleArrayStruct<int32_t>, { C2FIELD(mValues, "values") });
+DESCRIBE_TEMPLATED_C2STRUCT(C2SimpleArrayStruct<uint32_t>, { C2FIELD(mValues, "values") });
+DESCRIBE_TEMPLATED_C2STRUCT(C2SimpleArrayStruct<int64_t>, { C2FIELD(mValues, "values") });
+DESCRIBE_TEMPLATED_C2STRUCT(C2SimpleArrayStruct<uint64_t>, { C2FIELD(mValues, "values") });
+DESCRIBE_TEMPLATED_C2STRUCT(C2SimpleArrayStruct<float>, { C2FIELD(mValues, "values") });
+#endif
+
+/// @}
+
+/// @}
+
+}  // namespace android
+
+#endif  // C2PARAM_DEF_H_
diff --git a/media/libstagefright/codec2/include/C2Work.h b/media/libstagefright/codec2/include/C2Work.h
new file mode 100644
index 0000000..a42d11a
--- /dev/null
+++ b/media/libstagefright/codec2/include/C2Work.h
@@ -0,0 +1,162 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef C2WORK_H_
+
+#define C2WORK_H_
+
+#include <stdint.h>
+#include <stdbool.h>
+#include <C2Param.h>
+#include <C2Buffer.h>
+#include <C2Config.h>
+
+#include <memory>
+#include <list>
+#include <vector>
+
+typedef int status_t;
+
+namespace android {
+
+/// \defgroup work Work and data processing
+/// @{
+
+struct C2SettingResult {
+    enum Failure {
+        READ_ONLY,  ///< parameter is read-only and cannot be set
+        MISMATCH,   ///< parameter mismatches input data
+        BAD_VALUE,  ///< parameter does not accept value
+        BAD_TYPE,   ///< parameter is not supported
+        BAD_PORT,   ///< parameter is not supported on the specific port
+        BAD_INDEX,  ///< parameter is not supported on the specific stream
+        CONFLICT,   ///< parameter is in conflict with another setting
+    };
+
+    C2ParamField field;
+    Failure failure;
+    std::unique_ptr<C2FieldSupportedValues> supportedValues; //< if different from normal (e.g. in conflict w/another param or input data)
+    std::list<C2ParamField> conflictingFields;
+};
+
+// ================================================================================================
+//  WORK
+// ================================================================================================
+
+// node_id-s
+typedef uint32_t node_id;
+
+enum flags_t : uint32_t {
+    BUFFERFLAG_CODEC_CONFIG,
+    BUFFERFLAG_DROP_FRAME,
+    BUFFERFLAG_END_OF_STREAM,
+};
+
+enum {
+    kParamIndexWorkOrdinal,
+};
+
+struct C2WorkOrdinalStruct {
+    uint64_t timestamp;
+    uint64_t frame_index;    // submission ordinal on the initial component
+    uint64_t custom_ordinal; // can be given by the component, e.g. decode order
+
+    DEFINE_AND_DESCRIBE_C2STRUCT(WorkOrdinal)
+    C2FIELD(timestamp, "timestamp")
+    C2FIELD(frame_index, "frame-index")
+    C2FIELD(custom_ordinal, "custom-ordinal")
+};
+
+struct C2BufferPack {
+//public:
+    flags_t  flags;
+    C2WorkOrdinalStruct ordinal;
+    std::vector<std::shared_ptr<C2Buffer>> buffers;
+    //< for initial work item, these may also come from the parser - if provided
+    //< for output buffers, these are the responses to requestedInfos
+    std::list<std::unique_ptr<C2Info>>       infos;
+    std::list<std::shared_ptr<C2InfoBuffer>> infoBuffers;
+};
+
+struct C2Worklet {
+//public:
+    // IN
+    node_id component;
+
+    std::list<std::unique_ptr<C2Param>> tunings; //< tunings to be applied before processing this
+                                                 // worklet
+    std::list<C2Param::Type> requestedInfos;
+    std::vector<std::shared_ptr<C2BlockAllocator>> allocators; //< This vector shall be the same size as
+                                                          //< output.buffers.
+
+    // OUT
+    C2BufferPack output;
+    std::list<std::unique_ptr<C2SettingResult>> failures;
+};
+
+/**
+ * This structure holds information about all a single work item.
+ *
+ * This structure shall be passed by the client to the component for the first worklet. As such,
+ * worklets must not be empty. The ownership of this object is passed.
+ *
+ * input:
+ *      The input data to be processed. This is provided by the client with ownership. When the work
+ *      is returned, the input buffer-pack's buffer vector shall contain nullptrs.
+ *
+ * worklets:
+ *      The chain of components and associated allocators, tunings and info requests that the data
+ *      must pass through. If this has more than a single element, the tunnels between successive
+ *      components of the worklet chain must have been (successfully) pre-registered at the time
+ *      the work is submitted. Allocating the output buffers in the worklets is the responsibility
+ *      of each component. Upon work submission, each output buffer-pack shall be an appropriately
+ *      sized vector containing nullptrs. When the work is completed/returned to the client,
+ *
+ * worklets_processed:
+ *      It shall be initialized to 0 by the client when the work is submitted.
+ *      It shall contain the number of worklets that were successfully processed when the work is
+ *      returned. If this is less then the number of worklets, result must not be success.
+ *      It must be in the range of [0, worklets.size()].
+ *
+ * result:
+ *      The final outcome of the work. If 0 when work is returned, it is assumed that all worklets
+ *      have been processed.
+ */
+struct C2Work {
+//public:
+    // pre-chain infos (for portions of a tunneling chain that happend before this work-chain for
+    // this work item - due to framework facilitated (non-tunneled) work-chaining)
+    std::list<std::pair<std::unique_ptr<C2PortMimeConfig>, std::unique_ptr<C2Info>>> preChainInfos;
+    std::list<std::pair<std::unique_ptr<C2PortMimeConfig>, std::unique_ptr<C2Buffer>>> preChainInfoBlobs;
+
+    C2BufferPack input;
+    std::list<std::unique_ptr<C2Worklet>> worklets;
+
+    uint32_t worklets_processed;
+    status_t result;
+};
+
+struct C2WorkOutline {
+//public:
+    C2WorkOrdinalStruct ordinal;
+    std::list<node_id> chain;
+};
+
+/// @}
+
+}  // namespace android
+
+#endif  // C2WORK_H_
diff --git a/media/libstagefright/codec2/tests/Android.mk b/media/libstagefright/codec2/tests/Android.mk
new file mode 100644
index 0000000..49c4253
--- /dev/null
+++ b/media/libstagefright/codec2/tests/Android.mk
@@ -0,0 +1,37 @@
+# Build the unit tests.
+LOCAL_PATH:= $(call my-dir)
+include $(CLEAR_VARS)
+LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk
+
+LOCAL_MODULE := codec2_test
+
+LOCAL_MODULE_TAGS := tests
+
+LOCAL_SRC_FILES := \
+	vndk/C2UtilTest.cpp \
+	C2_test.cpp \
+	C2Param_test.cpp \
+
+LOCAL_SHARED_LIBRARIES := \
+	libcutils \
+	libstagefright_codec2 \
+	liblog
+
+LOCAL_C_INCLUDES := \
+	frameworks/av/media/libstagefright/codec2/include \
+	frameworks/av/media/libstagefright/codec2/vndk/include \
+	$(TOP)/frameworks/native/include/media/openmax \
+
+LOCAL_CFLAGS += -Werror -Wall -std=c++14
+LOCAL_CLANG := true
+
+include $(BUILD_NATIVE_TEST)
+
+# Include subdirectory makefiles
+# ============================================================
+
+# If we're building with ONE_SHOT_MAKEFILE (mm, mmm), then what the framework
+# team really wants is to build the stuff defined by this makefile.
+ifeq (,$(ONE_SHOT_MAKEFILE))
+include $(call first-makefiles-under,$(LOCAL_PATH))
+endif
diff --git a/media/libstagefright/codec2/tests/C2Param_test.cpp b/media/libstagefright/codec2/tests/C2Param_test.cpp
new file mode 100644
index 0000000..ec82c84
--- /dev/null
+++ b/media/libstagefright/codec2/tests/C2Param_test.cpp
@@ -0,0 +1,2687 @@
+/*
+ * Copyright 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "C2Param_test"
+
+#include <gtest/gtest.h>
+
+#include <util/C2ParamUtils.h>
+#include <C2ParamDef.h>
+
+namespace android {
+
+void PrintTo(const _C2FieldId &id, ::std::ostream* os) {
+    *os << "@" << id._mOffset << "+" << id._mSize;
+}
+
+void PrintTo(const C2FieldDescriptor &fd, ::std::ostream *os) {
+    using FD=C2FieldDescriptor;
+    switch (fd.type()) {
+    case FD::INT32: *os << "i32"; break;
+    case FD::INT64: *os << "i64"; break;
+    case FD::UINT32: *os << "u32"; break;
+    case FD::UINT64: *os << "u64"; break;
+    case FD::FLOAT: *os << "float"; break;
+    case FD::STRING: *os << "char"; break;
+    case FD::BLOB: *os << "u8"; break;
+    default:
+        if (fd.type() & FD::STRUCT_FLAG) {
+            *os << "struct-" << (fd.type() & ~FD::STRUCT_FLAG);
+        } else {
+            *os << "type-" << fd.type();
+        }
+    }
+    *os << " " << fd.name();
+    if (fd.length() > 1) {
+        *os << "[" << fd.length() << "]";
+    } else if (fd.length() == 0) {
+        *os << "[]";
+    }
+    *os << " (";
+    PrintTo(fd._mFieldId, os);
+    *os << "*" << fd.length() << ")";
+}
+
+enum C2ParamIndexType {
+    kParamIndexNumber,
+    kParamIndexNumbers,
+    kParamIndexNumber2,
+    kParamIndexVendorStart = C2Param::BaseIndex::kVendorStart,
+    kParamIndexVendorNumbers,
+};
+
+void ffff(int(*)(int)) {}
+
+/* ============================= STRUCT DECLARATION AND DESCRIPTION ============================= */
+
+typedef C2FieldDescriptor FD;
+
+class C2ParamTest : public ::testing::Test {
+};
+
+class C2ParamTest_ParamFieldList
+        : public ::testing::TestWithParam<std::initializer_list<const C2FieldDescriptor>> {
+};
+
+enum {
+    kParamIndexSize,
+    kParamIndexTestA,
+    kParamIndexTestB,
+    kParamIndexTestFlexS32,
+    kParamIndexTestFlexEndS32,
+    kParamIndexTestFlexS64,
+    kParamIndexTestFlexEndS64,
+    kParamIndexTestFlexSize,
+    kParamIndexTestFlexEndSize,
+};
+
+struct C2SizeStruct {
+    int32_t mNumber;
+    int32_t mHeight;
+    enum : uint32_t { baseIndex = kParamIndexSize };                        // <= needed for C2FieldDescriptor
+    const static std::initializer_list<const C2FieldDescriptor> fieldList;  // <= needed for C2FieldDescriptor
+    const static FD::Type TYPE = (FD::Type)(baseIndex | FD::STRUCT_FLAG);
+};
+
+DEFINE_NO_NAMED_VALUES_FOR(C2SizeStruct)
+
+// Test 1. define a structure without any helper methods
+
+bool operator==(const C2FieldDescriptor &a, const C2FieldDescriptor &b) {
+    return a.type() == b.type()
+            && a.length() == b.length()
+            && strcmp(a.name(), b.name()) == 0
+            && a._mFieldId == b._mFieldId;
+}
+
+struct C2TestStruct_A {
+    int32_t mSigned32;
+    int64_t mSigned64[2];
+    uint32_t mUnsigned32[1];
+    uint64_t mUnsigned64;
+    float mFloat;
+    C2SizeStruct mSize[3];
+    uint8_t mBlob[100];
+    char mString[100];
+    bool mYesNo[100];
+
+    const static std::initializer_list<const C2FieldDescriptor> fieldList;
+    // enum : uint32_t { baseIndex = kParamIndexTest };
+    // typedef C2TestStruct_A _type;
+} __attribute__((packed));
+
+const std::initializer_list<const C2FieldDescriptor> C2TestStruct_A::fieldList =
+    { { FD::INT32,    1, "s32",   0, 4 },
+      { FD::INT64,    2, "s64",   4, 8 },
+      { FD::UINT32,   1, "u32",  20, 4 },
+      { FD::UINT64,   1, "u64",  24, 8 },
+      { FD::FLOAT,    1, "fp",   32, 4 },
+      { C2SizeStruct::TYPE, 3, "size", 36, 8 },
+      { FD::BLOB,   100, "blob", 60, 1 },
+      { FD::STRING, 100, "str", 160, 1 },
+      { FD::BLOB,   100, "y-n", 260, 1 } };
+
+TEST_P(C2ParamTest_ParamFieldList, VerifyStruct) {
+    std::vector<const C2FieldDescriptor> fields = GetParam(), expected = C2TestStruct_A::fieldList;
+
+    // verify first field descriptor
+    EXPECT_EQ(FD::INT32, fields[0].type());
+    EXPECT_STREQ("s32", fields[0].name());
+    EXPECT_EQ(1u, fields[0].length());
+    EXPECT_EQ(_C2FieldId(0, 4), fields[0]._mFieldId);
+
+    EXPECT_EQ(expected[0], fields[0]);
+    EXPECT_EQ(expected[1], fields[1]);
+    EXPECT_EQ(expected[2], fields[2]);
+    EXPECT_EQ(expected[3], fields[3]);
+    EXPECT_EQ(expected[4], fields[4]);
+    EXPECT_EQ(expected[5], fields[5]);
+    EXPECT_EQ(expected[6], fields[6]);
+    EXPECT_EQ(expected[7], fields[7]);
+    for (size_t i = 8; i < fields.size() && i < expected.size(); ++i) {
+        EXPECT_EQ(expected[i], fields[i]);
+    }
+}
+
+INSTANTIATE_TEST_CASE_P(InitializerList, C2ParamTest_ParamFieldList, ::testing::Values(C2TestStruct_A::fieldList));
+
+// define fields using C2FieldDescriptor pointer constructor
+const std::initializer_list<const C2FieldDescriptor> C2TestStruct_A_FD_PTR_fieldList =
+    { C2FieldDescriptor(&((C2TestStruct_A*)(nullptr))->mSigned32,   "s32"),
+      C2FieldDescriptor(&((C2TestStruct_A*)(nullptr))->mSigned64,   "s64"),
+      C2FieldDescriptor(&((C2TestStruct_A*)(nullptr))->mUnsigned32, "u32"),
+      C2FieldDescriptor(&((C2TestStruct_A*)(nullptr))->mUnsigned64, "u64"),
+      C2FieldDescriptor(&((C2TestStruct_A*)(nullptr))->mFloat,      "fp"),
+      C2FieldDescriptor(&((C2TestStruct_A*)(nullptr))->mSize,       "size"),
+      C2FieldDescriptor(&((C2TestStruct_A*)(nullptr))->mBlob,       "blob"),
+      C2FieldDescriptor(&((C2TestStruct_A*)(nullptr))->mString,     "str"),
+    //  C2FieldDescriptor(&((C2TestStruct_A*)(nullptr))->mYesNo,      "y-n")
+    };
+
+INSTANTIATE_TEST_CASE_P(PointerConstructor, C2ParamTest_ParamFieldList, ::testing::Values(C2TestStruct_A_FD_PTR_fieldList));
+
+// define fields using C2FieldDescriptor member-pointer constructor
+const std::initializer_list<const C2FieldDescriptor> C2TestStruct_A_FD_MEM_PTR_fieldList =
+    { C2FieldDescriptor((C2TestStruct_A*)0, &C2TestStruct_A::mSigned32,   "s32"),
+      C2FieldDescriptor((C2TestStruct_A*)0, &C2TestStruct_A::mSigned64,   "s64"),
+      C2FieldDescriptor((C2TestStruct_A*)0, &C2TestStruct_A::mUnsigned32, "u32"),
+      C2FieldDescriptor((C2TestStruct_A*)0, &C2TestStruct_A::mUnsigned64, "u64"),
+      C2FieldDescriptor((C2TestStruct_A*)0, &C2TestStruct_A::mFloat,      "fp"),
+      C2FieldDescriptor((C2TestStruct_A*)0, &C2TestStruct_A::mSize,       "size"),
+      C2FieldDescriptor((C2TestStruct_A*)0, &C2TestStruct_A::mBlob,       "blob"),
+      C2FieldDescriptor((C2TestStruct_A*)0, &C2TestStruct_A::mString,     "str"),
+    //  C2FieldDescriptor((C2TestStruct_A*)0, &C2TestStruct_A::mYesNo,      "y-n")
+    };
+
+INSTANTIATE_TEST_CASE_P(MemberPointerConstructor, C2ParamTest_ParamFieldList, ::testing::Values(C2TestStruct_A_FD_MEM_PTR_fieldList));
+
+// Test 2. define a structure with two-step helper methods
+
+struct C2TestAStruct {
+    int32_t mSigned32;
+    int64_t mSigned64[2];
+    uint32_t mUnsigned32[1];
+    uint64_t mUnsigned64;
+    float mFloat;
+    C2SizeStruct mSize[3];
+    uint8_t mBlob[100];
+    char mString[100];
+    bool mYesNo[100];
+
+private: // test access level
+    DEFINE_C2STRUCT(TestA)
+} C2_PACK;
+
+DESCRIBE_C2STRUCT(TestA, {
+    C2FIELD(mSigned32, "s32")
+    C2FIELD(mSigned64, "s64")
+    C2FIELD(mUnsigned32, "u32")
+    C2FIELD(mUnsigned64, "u64")
+    C2FIELD(mFloat, "fp")
+    C2FIELD(mSize, "size")
+    C2FIELD(mBlob, "blob")
+    C2FIELD(mString, "str")
+    // C2FIELD(mYesNo, "y-n")
+}) // ; optional
+
+INSTANTIATE_TEST_CASE_P(DescribeStruct2Step, C2ParamTest_ParamFieldList, ::testing::Values(C2TestAStruct::fieldList));
+
+// Test 3. define a structure with one-step helper method
+
+struct C2TestBStruct {
+    int32_t mSigned32;
+    int64_t mSigned64[2];
+    uint32_t mUnsigned32[1];
+    uint64_t mUnsigned64;
+    float mFloat;
+    C2SizeStruct mSize[3];
+    uint8_t mBlob[100];
+    char mString[100];
+    bool mYesNo[100];
+
+private: // test access level
+    DEFINE_AND_DESCRIBE_C2STRUCT(TestB)
+
+    C2FIELD(mSigned32, "s32")
+    C2FIELD(mSigned64, "s64")
+    C2FIELD(mUnsigned32, "u32")
+    C2FIELD(mUnsigned64, "u64")
+    C2FIELD(mFloat, "fp")
+    C2FIELD(mSize, "size")
+    C2FIELD(mBlob, "blob")
+    C2FIELD(mString, "str")
+    // C2FIELD(mYesNo, "y-n")
+};
+
+INSTANTIATE_TEST_CASE_P(DescribeStruct1Step, C2ParamTest_ParamFieldList, ::testing::Values(C2TestBStruct::fieldList));
+
+// Test 4. flexible members
+
+template<typename T>
+class C2ParamTest_FlexParamFieldList : public ::testing::Test {
+protected:
+    using Type=FD::Type;
+
+    // static std::initializer_list<std::initializer_list<const C2FieldDescriptor>>
+    static std::vector<std::vector<const C2FieldDescriptor>>
+            GetLists();
+
+    constexpr static Type flexType =
+            std::is_same<T, int32_t>::value ? FD::INT32 :
+            std::is_same<T, int64_t>::value ? FD::INT64 :
+            std::is_same<T, uint32_t>::value ? FD::UINT32 :
+            std::is_same<T, uint64_t>::value ? FD::UINT64 :
+            std::is_same<T, float>::value ? FD::FLOAT :
+            std::is_same<T, uint8_t>::value ? FD::BLOB :
+            std::is_same<T, char>::value ? FD::STRING :
+            std::is_same<T, C2SizeStruct>::value ? C2SizeStruct::TYPE : (Type)0;
+    constexpr static size_t flexSize = sizeof(T);
+};
+
+typedef ::testing::Types<int32_t, int64_t, C2SizeStruct> FlexTypes;
+TYPED_TEST_CASE(C2ParamTest_FlexParamFieldList, FlexTypes);
+
+TYPED_TEST(C2ParamTest_FlexParamFieldList, VerifyStruct) {
+    for (auto a : this->GetLists()) {
+        std::vector<const C2FieldDescriptor> fields = a;
+        if (fields.size() > 1) {
+            EXPECT_EQ(2u, fields.size());
+            EXPECT_EQ(C2FieldDescriptor(FD::INT32, 1, "s32", 0, 4), fields[0]);
+            EXPECT_EQ(C2FieldDescriptor(this->flexType, 0, "flex", 4, this->flexSize),
+                      fields[1]);
+        } else {
+            EXPECT_EQ(1u, fields.size());
+            EXPECT_EQ(C2FieldDescriptor(this->flexType, 0, "flex", 0, this->flexSize),
+                      fields[0]);
+        }
+    }
+}
+
+struct C2TestStruct_FlexS32 {
+    int32_t mFlex[];
+
+    const static std::initializer_list<const C2FieldDescriptor> fieldList;
+    // enum : uint32_t { baseIndex = kParamIndexTestFlex, flexSize = 4 };
+    // typedef C2TestStruct_FlexS32 _type;
+    // typedef int32_t flexType;
+};
+
+const std::initializer_list<const C2FieldDescriptor> C2TestStruct_FlexS32::fieldList = {
+    { FD::INT32, 0, "flex", 0, 4 }
+};
+
+struct C2TestStruct_FlexEndS32 {
+    int32_t mSigned32;
+    int32_t mFlex[];
+
+    const static std::initializer_list<const C2FieldDescriptor> fieldList;
+    // enum : uint32_t { baseIndex = kParamIndexTestFlexEnd, flexSize = 4 };
+    // typedef C2TestStruct_FlexEnd _type;
+    // typedef int32_t flexType;
+};
+
+const std::initializer_list<const C2FieldDescriptor> C2TestStruct_FlexEndS32::fieldList = {
+    { FD::INT32, 1, "s32", 0, 4 },
+    { FD::INT32, 0, "flex", 4, 4 },
+};
+
+const static std::initializer_list<const C2FieldDescriptor> C2TestStruct_FlexEndS32_ptr_fieldList = {
+    C2FieldDescriptor(&((C2TestStruct_FlexEndS32*)0)->mSigned32, "s32"),
+    C2FieldDescriptor(&((C2TestStruct_FlexEndS32*)0)->mFlex, "flex"),
+};
+
+struct C2TestFlexS32Struct {
+    int32_t mFlexSigned32[];
+private: // test access level
+    C2TestFlexS32Struct() {}
+
+    DEFINE_AND_DESCRIBE_FLEX_C2STRUCT(TestFlexS32, mFlexSigned32)
+    C2FIELD(mFlexSigned32, "flex")
+};
+
+struct C2TestFlexEndS32Struct {
+    int32_t mSigned32;
+    int32_t mFlexSigned32[];
+private: // test access level
+    C2TestFlexEndS32Struct() {}
+
+    DEFINE_FLEX_C2STRUCT(TestFlexEndS32, mFlexSigned32)
+} C2_PACK;
+
+DESCRIBE_C2STRUCT(TestFlexEndS32, {
+    C2FIELD(mSigned32, "s32")
+    C2FIELD(mFlexSigned32, "flex")
+}) // ; optional
+
+template<>
+std::vector<std::vector<const C2FieldDescriptor>>
+//std::initializer_list<std::initializer_list<const C2FieldDescriptor>>
+C2ParamTest_FlexParamFieldList<int32_t>::GetLists() {
+    return {
+        C2TestStruct_FlexS32::fieldList,
+        C2TestStruct_FlexEndS32::fieldList,
+        C2TestStruct_FlexEndS32_ptr_fieldList,
+        C2TestFlexS32Struct::fieldList,
+        C2TestFlexEndS32Struct::fieldList,
+    };
+}
+
+struct C2TestStruct_FlexS64 {
+    int64_t mFlexSigned64[];
+
+    const static std::initializer_list<const C2FieldDescriptor> fieldList;
+    // enum : uint32_t { baseIndex = kParamIndexTestFlexS64, flexSize = 8 };
+    // typedef C2TestStruct_FlexS64 _type;
+    // typedef int64_t flexType;
+};
+
+const std::initializer_list<const C2FieldDescriptor> C2TestStruct_FlexS64::fieldList = {
+    { FD::INT64, 0, "flex", 0, 8 }
+};
+
+struct C2TestStruct_FlexEndS64 {
+    int32_t mSigned32;
+    int64_t mSigned64Flex[];
+
+    const static std::initializer_list<const C2FieldDescriptor> fieldList;
+    // enum : uint32_t { baseIndex = C2TestStruct_FlexEndS64, flexSize = 8 };
+    // typedef C2TestStruct_FlexEndS64 _type;
+    // typedef int64_t flexType;
+};
+
+const std::initializer_list<const C2FieldDescriptor> C2TestStruct_FlexEndS64::fieldList = {
+    { FD::INT32, 1, "s32", 0, 4 },
+    { FD::INT64, 0, "flex", 4, 8 },
+};
+
+struct C2TestFlexS64Struct {
+    int64_t mFlexSigned64[];
+    C2TestFlexS64Struct() {}
+
+    DEFINE_AND_DESCRIBE_FLEX_C2STRUCT(TestFlexS64, mFlexSigned64)
+    C2FIELD(mFlexSigned64, "flex")
+};
+
+struct C2TestFlexEndS64Struct {
+    int32_t mSigned32;
+    int64_t mFlexSigned64[];
+    C2TestFlexEndS64Struct() {}
+
+    DEFINE_FLEX_C2STRUCT(TestFlexEndS64, mFlexSigned64)
+} C2_PACK;
+
+DESCRIBE_C2STRUCT(TestFlexEndS64, {
+    C2FIELD(mSigned32, "s32")
+    C2FIELD(mFlexSigned64, "flex")
+}) // ; optional
+
+template<>
+std::vector<std::vector<const C2FieldDescriptor>>
+//std::initializer_list<std::initializer_list<const C2FieldDescriptor>>
+C2ParamTest_FlexParamFieldList<int64_t>::GetLists() {
+    return {
+        C2TestStruct_FlexS64::fieldList,
+        C2TestStruct_FlexEndS64::fieldList,
+        C2TestFlexS64Struct::fieldList,
+        C2TestFlexEndS64Struct::fieldList,
+    };
+}
+
+struct C2TestStruct_FlexSize {
+    C2SizeStruct mFlexSize[];
+
+    const static std::initializer_list<const C2FieldDescriptor> fieldList;
+    // enum : uint32_t { baseIndex = kParamIndexTestFlexSize, flexSize = 8 };
+    // typedef C2TestStruct_FlexSize _type;
+    // typedef C2SizeStruct flexType;
+};
+
+const std::initializer_list<const C2FieldDescriptor> C2TestStruct_FlexSize::fieldList = {
+    { C2SizeStruct::TYPE, 0, "flex", 0, sizeof(C2SizeStruct) }
+};
+
+struct C2TestStruct_FlexEndSize {
+    int32_t mSigned32;
+    C2SizeStruct mSizeFlex[];
+
+    const static std::initializer_list<const C2FieldDescriptor> fieldList;
+    // enum : uint32_t { baseIndex = C2TestStruct_FlexEndSize, flexSize = 8 };
+    // typedef C2TestStruct_FlexEndSize _type;
+    // typedef C2SizeStruct flexType;
+};
+
+const std::initializer_list<const C2FieldDescriptor> C2TestStruct_FlexEndSize::fieldList = {
+    { FD::INT32, 1, "s32", 0, 4 },
+    { C2SizeStruct::TYPE, 0, "flex", 4, sizeof(C2SizeStruct) },
+};
+
+struct C2TestFlexSizeStruct {
+    C2SizeStruct mFlexSize[];
+    C2TestFlexSizeStruct() {}
+
+    DEFINE_AND_DESCRIBE_FLEX_C2STRUCT(TestFlexSize, mFlexSize)
+    C2FIELD(mFlexSize, "flex")
+};
+
+struct C2TestFlexEndSizeStruct {
+    int32_t mSigned32;
+    C2SizeStruct mFlexSize[];
+    C2TestFlexEndSizeStruct() {}
+
+    DEFINE_FLEX_C2STRUCT(TestFlexEndSize, mFlexSize)
+} C2_PACK;
+
+DESCRIBE_C2STRUCT(TestFlexEndSize, {
+    C2FIELD(mSigned32, "s32")
+    C2FIELD(mFlexSize, "flex")
+}) // ; optional
+
+template<>
+std::vector<std::vector<const C2FieldDescriptor>>
+//std::initializer_list<std::initializer_list<const C2FieldDescriptor>>
+C2ParamTest_FlexParamFieldList<C2SizeStruct>::GetLists() {
+    return {
+        C2TestStruct_FlexSize::fieldList,
+        C2TestStruct_FlexEndSize::fieldList,
+        C2TestFlexSizeStruct::fieldList,
+        C2TestFlexEndSizeStruct::fieldList,
+    };
+}
+
+TEST_F(C2ParamTest, FieldId) {
+    // pointer constructor
+    EXPECT_EQ(_C2FieldId(0, 4), _C2FieldId(&((C2TestStruct_A*)0)->mSigned32));
+    EXPECT_EQ(_C2FieldId(4, 8), _C2FieldId(&((C2TestStruct_A*)0)->mSigned64));
+    EXPECT_EQ(_C2FieldId(20, 4), _C2FieldId(&((C2TestStruct_A*)0)->mUnsigned32));
+    EXPECT_EQ(_C2FieldId(24, 8), _C2FieldId(&((C2TestStruct_A*)0)->mUnsigned64));
+    EXPECT_EQ(_C2FieldId(32, 4), _C2FieldId(&((C2TestStruct_A*)0)->mFloat));
+    EXPECT_EQ(_C2FieldId(36, 8), _C2FieldId(&((C2TestStruct_A*)0)->mSize));
+    EXPECT_EQ(_C2FieldId(60, 1), _C2FieldId(&((C2TestStruct_A*)0)->mBlob));
+    EXPECT_EQ(_C2FieldId(160, 1), _C2FieldId(&((C2TestStruct_A*)0)->mString));
+    EXPECT_EQ(_C2FieldId(260, 1), _C2FieldId(&((C2TestStruct_A*)0)->mYesNo));
+
+    EXPECT_EQ(_C2FieldId(0, 4), _C2FieldId(&((C2TestFlexEndSizeStruct*)0)->mSigned32));
+    EXPECT_EQ(_C2FieldId(4, 8), _C2FieldId(&((C2TestFlexEndSizeStruct*)0)->mFlexSize));
+
+    // member pointer constructor
+    EXPECT_EQ(_C2FieldId(0, 4), _C2FieldId((C2TestStruct_A*)0, &C2TestStruct_A::mSigned32));
+    EXPECT_EQ(_C2FieldId(4, 8), _C2FieldId((C2TestStruct_A*)0, &C2TestStruct_A::mSigned64));
+    EXPECT_EQ(_C2FieldId(20, 4), _C2FieldId((C2TestStruct_A*)0, &C2TestStruct_A::mUnsigned32));
+    EXPECT_EQ(_C2FieldId(24, 8), _C2FieldId((C2TestStruct_A*)0, &C2TestStruct_A::mUnsigned64));
+    EXPECT_EQ(_C2FieldId(32, 4), _C2FieldId((C2TestStruct_A*)0, &C2TestStruct_A::mFloat));
+    EXPECT_EQ(_C2FieldId(36, 8), _C2FieldId((C2TestStruct_A*)0, &C2TestStruct_A::mSize));
+    EXPECT_EQ(_C2FieldId(60, 1), _C2FieldId((C2TestStruct_A*)0, &C2TestStruct_A::mBlob));
+    EXPECT_EQ(_C2FieldId(160, 1), _C2FieldId((C2TestStruct_A*)0, &C2TestStruct_A::mString));
+    EXPECT_EQ(_C2FieldId(260, 1), _C2FieldId((C2TestStruct_A*)0, &C2TestStruct_A::mYesNo));
+
+    EXPECT_EQ(_C2FieldId(0, 4), _C2FieldId((C2TestFlexEndSizeStruct*)0, &C2TestFlexEndSizeStruct::mSigned32));
+    EXPECT_EQ(_C2FieldId(4, 8), _C2FieldId((C2TestFlexEndSizeStruct*)0, &C2TestFlexEndSizeStruct::mFlexSize));
+
+    // member pointer sans type pointer
+    EXPECT_EQ(_C2FieldId(0, 4), _C2FieldId(&C2TestStruct_A::mSigned32));
+    EXPECT_EQ(_C2FieldId(4, 8), _C2FieldId(&C2TestStruct_A::mSigned64));
+    EXPECT_EQ(_C2FieldId(20, 4), _C2FieldId(&C2TestStruct_A::mUnsigned32));
+    EXPECT_EQ(_C2FieldId(24, 8), _C2FieldId(&C2TestStruct_A::mUnsigned64));
+    EXPECT_EQ(_C2FieldId(32, 4), _C2FieldId(&C2TestStruct_A::mFloat));
+    EXPECT_EQ(_C2FieldId(36, 8), _C2FieldId(&C2TestStruct_A::mSize));
+    EXPECT_EQ(_C2FieldId(60, 1), _C2FieldId(&C2TestStruct_A::mBlob));
+    EXPECT_EQ(_C2FieldId(160, 1), _C2FieldId(&C2TestStruct_A::mString));
+    EXPECT_EQ(_C2FieldId(260, 1), _C2FieldId(&C2TestStruct_A::mYesNo));
+
+    EXPECT_EQ(_C2FieldId(0, 4), _C2FieldId(&C2TestFlexEndSizeStruct::mSigned32));
+    EXPECT_EQ(_C2FieldId(4, 8), _C2FieldId(&C2TestFlexEndSizeStruct::mFlexSize));
+
+    typedef C2GlobalParam<C2Info, C2TestAStruct> C2TestAInfo;
+    typedef C2GlobalParam<C2Info, C2TestFlexEndSizeStruct> C2TestFlexEndSizeInfo;
+
+    // pointer constructor in C2Param
+    EXPECT_EQ(_C2FieldId(8, 4), _C2FieldId(&((C2TestAInfo*)0)->mSigned32));
+    EXPECT_EQ(_C2FieldId(12, 8), _C2FieldId(&((C2TestAInfo*)0)->mSigned64));
+    EXPECT_EQ(_C2FieldId(28, 4), _C2FieldId(&((C2TestAInfo*)0)->mUnsigned32));
+    EXPECT_EQ(_C2FieldId(32, 8), _C2FieldId(&((C2TestAInfo*)0)->mUnsigned64));
+    EXPECT_EQ(_C2FieldId(40, 4), _C2FieldId(&((C2TestAInfo*)0)->mFloat));
+    EXPECT_EQ(_C2FieldId(44, 8), _C2FieldId(&((C2TestAInfo*)0)->mSize));
+    EXPECT_EQ(_C2FieldId(68, 1), _C2FieldId(&((C2TestAInfo*)0)->mBlob));
+    EXPECT_EQ(_C2FieldId(168, 1), _C2FieldId(&((C2TestAInfo*)0)->mString));
+    EXPECT_EQ(_C2FieldId(268, 1), _C2FieldId(&((C2TestAInfo*)0)->mYesNo));
+
+    EXPECT_EQ(_C2FieldId(8, 4), _C2FieldId(&((C2TestFlexEndSizeInfo*)0)->m.mSigned32));
+    EXPECT_EQ(_C2FieldId(12, 8), _C2FieldId(&((C2TestFlexEndSizeInfo*)0)->m.mFlexSize));
+
+    // member pointer in C2Param
+    EXPECT_EQ(_C2FieldId(8, 4), _C2FieldId((C2TestAInfo*)0, &C2TestAInfo::mSigned32));
+    EXPECT_EQ(_C2FieldId(12, 8), _C2FieldId((C2TestAInfo*)0, &C2TestAInfo::mSigned64));
+    EXPECT_EQ(_C2FieldId(28, 4), _C2FieldId((C2TestAInfo*)0, &C2TestAInfo::mUnsigned32));
+    EXPECT_EQ(_C2FieldId(32, 8), _C2FieldId((C2TestAInfo*)0, &C2TestAInfo::mUnsigned64));
+    EXPECT_EQ(_C2FieldId(40, 4), _C2FieldId((C2TestAInfo*)0, &C2TestAInfo::mFloat));
+    EXPECT_EQ(_C2FieldId(44, 8), _C2FieldId((C2TestAInfo*)0, &C2TestAInfo::mSize));
+    EXPECT_EQ(_C2FieldId(68, 1), _C2FieldId((C2TestAInfo*)0, &C2TestAInfo::mBlob));
+    EXPECT_EQ(_C2FieldId(168, 1), _C2FieldId((C2TestAInfo*)0, &C2TestAInfo::mString));
+    EXPECT_EQ(_C2FieldId(268, 1), _C2FieldId((C2TestAInfo*)0, &C2TestAInfo::mYesNo));
+
+    // NOTE: cannot use a member pointer for flex params due to introduction of 'm'
+    // EXPECT_EQ(_C2FieldId(8, 4), _C2FieldId(&C2TestFlexEndSizeInfo::m.mSigned32));
+    // EXPECT_EQ(_C2FieldId(12, 8), _C2FieldId(&C2TestFlexEndSizeInfo::m.mFlexSize));
+
+
+
+}
+
+struct S32 {
+    template<typename T, class B=typename std::remove_extent<T>::type>
+    inline S32(const T*) {
+        static_assert(!std::is_array<T>::value, "should not be an array");
+        static_assert(std::is_same<B, int32_t>::value, "should be int32_t");
+    }
+};
+
+struct FLX {
+    template<typename U, typename T, class B=typename std::remove_extent<T>::type>
+    inline FLX(const T*, const U*) {
+        static_assert(std::is_array<T>::value, "should be an array");
+        static_assert(std::extent<T>::value == 0, "should be an array of 0 extent");
+        static_assert(std::is_same<B, U>::value, "should be type U");
+    }
+};
+
+struct MP {
+    template<typename U, typename T, typename ExpectedU, typename UnexpectedU>
+    inline MP(T U::*, const ExpectedU*, const UnexpectedU*) {
+        static_assert(!std::is_same<U, UnexpectedU>::value, "should not be member pointer of the base type");
+        static_assert(std::is_same<U, ExpectedU>::value, "should be member pointer of the derived type");
+    }
+
+    template<typename U, typename T, typename B, typename D>
+    inline MP(T D::*, const D*) { }
+};
+
+void compiledStatic_arrayTypePropagationTest() {
+    (void)S32(&((C2TestFlexEndS32Struct *)0)->mSigned32);
+    (void)FLX(&((C2TestFlexEndS32Struct *)0)->mFlexSigned32, (int32_t*)0);
+    (void)FLX(&((C2TestFlexS32Struct *)0)->mFlexSigned32, (int32_t*)0);
+
+    typedef C2GlobalParam<C2Info, C2TestAStruct> C2TestAInfo;
+
+    // TRICKY: &derivedClass::baseMember has type of baseClass::*
+    static_assert(std::is_same<decltype(&C2TestAInfo::mSigned32), int32_t C2TestAStruct::*>::value,
+                  "base member pointer should have base class in type");
+
+    // therefore, member pointer expands to baseClass::* in templates
+    (void)MP(&C2TestAInfo::mSigned32,
+             (C2TestAStruct*)0 /* expected */, (C2TestAInfo*)0 /* unexpected */);
+    // but can be cast to derivedClass::*
+    (void)MP((int32_t C2TestAInfo::*)&C2TestAInfo::mSigned32,
+             (C2TestAInfo*)0 /* expected */, (C2TestAStruct*)0 /* unexpected */);
+
+    // TRICKY: baseClass::* does not autoconvert to derivedClass::* even in templates
+    // (void)MP(&C2TestAInfo::mSigned32, (C2TestAInfo*)0);
+}
+
+TEST_F(C2ParamTest, MemberPointerCast) {
+    typedef C2GlobalParam<C2Info, C2TestAStruct> C2TestAInfo;
+
+    static_assert(offsetof(C2TestAInfo, mSigned32) == 8, "offset should be 8");
+    constexpr int32_t C2TestAStruct::* s32ptr = &C2TestAInfo::mSigned32;
+    constexpr int32_t C2TestAInfo::* s32ptr_derived = (int32_t C2TestAStruct::*)&C2TestAInfo::mSigned32;
+    constexpr int32_t C2TestAInfo::* s32ptr_cast2derived = (int32_t C2TestAInfo::*)s32ptr;
+    C2TestAInfo *info = (C2TestAInfo *)256;
+    C2TestAStruct *strukt = (C2TestAStruct *)info;
+    int32_t *info_s32_derived = &(info->*s32ptr_derived);
+    int32_t *info_s32_cast2derived = &(info->*s32ptr_cast2derived);
+    int32_t *info_s32 = &(info->*s32ptr);
+    int32_t *strukt_s32 = &(strukt->*s32ptr);
+
+    EXPECT_EQ(256u, (uintptr_t)info);
+    EXPECT_EQ(264u, (uintptr_t)strukt);
+    EXPECT_EQ(264u, (uintptr_t)info_s32_derived);
+    EXPECT_EQ(264u, (uintptr_t)info_s32_cast2derived);
+    EXPECT_EQ(264u, (uintptr_t)info_s32);
+    EXPECT_EQ(264u, (uintptr_t)strukt_s32);
+
+    typedef C2GlobalParam<C2Info, C2TestFlexEndSizeStruct> C2TestFlexEndSizeInfo;
+    static_assert(offsetof(C2TestFlexEndSizeInfo, m.mSigned32) == 8, "offset should be 8");
+    static_assert(offsetof(C2TestFlexEndSizeInfo, m.mFlexSize) == 12, "offset should be 12");
+}
+
+/* ===================================== PARAM USAGE TESTS ===================================== */
+
+struct C2NumberStruct {
+    int32_t mNumber;
+    C2NumberStruct() {}
+    C2NumberStruct(int32_t _number) : mNumber(_number) {}
+
+    DEFINE_AND_DESCRIBE_C2STRUCT(Number)
+    C2FIELD(mNumber, "number")
+};
+
+struct C2NumbersStruct {
+    int32_t mNumbers[];
+    C2NumbersStruct() {}
+
+    DEFINE_AND_DESCRIBE_FLEX_C2STRUCT(Numbers, mNumbers)
+    C2FIELD(mNumbers, "numbers")
+};
+static_assert(sizeof(C2NumbersStruct) == 0, "C2NumbersStruct has incorrect size");
+
+typedef C2GlobalParam<C2Tuning, C2NumberStruct> C2NumberTuning;
+typedef   C2PortParam<C2Tuning, C2NumberStruct> C2NumberPortTuning;
+typedef C2StreamParam<C2Tuning, C2NumberStruct> C2NumberStreamTuning;
+
+typedef C2GlobalParam<C2Tuning, C2NumbersStruct> C2NumbersTuning;
+typedef   C2PortParam<C2Tuning, C2NumbersStruct> C2NumbersPortTuning;
+typedef C2StreamParam<C2Tuning, C2NumbersStruct> C2NumbersStreamTuning;
+
+//
+#if 0
+
+void test() {
+    C2NumberStruct s(10);
+    (void)C2NumberStruct::fieldList;
+};
+
+typedef C2StreamParam<C2Tuning, C2Int64Value, kParamIndexNumberB> C2NumberConfig4;
+typedef C2PortParam<C2Tuning, C2Int32Value, kParamIndexNumber> C2NumberConfig3;
+typedef C2GlobalParam<C2Tuning, C2StringValue, kParamIndexNumber> C2VideoNameConfig;
+
+void test3() {
+    C2NumberConfig3 s(10);
+    s.mValue = 11;
+    s = 12;
+    (void)C2NumberConfig3::fieldList;
+    std::shared_ptr<C2VideoNameConfig> n = C2VideoNameConfig::alloc_shared(25);
+    strcpy(n->m.mValue, "lajos");
+    C2NumberConfig4 t(false, 0, 11);
+    t.mValue = 15;
+};
+
+struct C2NumbersStruct {
+    int32_t mNumbers[];
+    enum { baseIndex = kParamIndexNumber };
+    const static std::initializer_list<const C2FieldDescriptor> fieldList;
+    C2NumbersStruct() {}
+
+    FLEX(C2NumbersStruct, mNumbers);
+};
+
+static_assert(sizeof(C2NumbersStruct) == 0, "yes");
+
+
+typedef C2GlobalParam<C2Info, C2NumbersStruct> C2NumbersInfo;
+
+const std::initializer_list<const C2FieldDescriptor> C2NumbersStruct::fieldList =
+//    { { FD::INT32, 0, "widths" } };
+    { C2FieldDescriptor(&((C2NumbersStruct*)(nullptr))->mNumbers, "number") };
+
+typedef C2PortParam<C2Tuning, C2NumberStruct> C2NumberConfig;
+
+std::list<const C2FieldDescriptor> myList = C2NumberConfig::fieldList;
+
+    std::unique_ptr<android::C2ParamDescriptor> __test_describe(uint32_t paramType) {
+        std::list<const C2FieldDescriptor> fields = describeC2Params<C2NumberConfig>();
+
+        auto widths = C2NumbersInfo::alloc_shared(5);
+        widths->flexCount();
+        widths->m.mNumbers[4] = 1;
+
+        test();
+        test3();
+
+        C2NumberConfig outputWidth(false, 123);
+
+        C2Param::Index index(paramType);
+        switch (paramType) {
+        case C2NumberConfig::baseIndex:
+            return std::unique_ptr<C2ParamDescriptor>(new C2ParamDescriptor{
+                true /* isRequired */,
+                "number",
+                index,
+            });
+        }
+        return nullptr;
+    }
+
+
+} // namespace android
+
+#endif
+//
+
+template<typename T>
+bool canSetPort(T &o, bool output) { return o.setPort(output); }
+bool canSetPort(...) { return false; }
+
+template<typename S, typename=decltype(((S*)0)->setPort(true))>
+static std::true_type _canCallSetPort(int);
+template<typename>
+static std::false_type _canCallSetPort(...);
+#define canCallSetPort(x) decltype(_canCallSetPort<std::remove_reference<decltype(x)>::type>(0))::value
+
+/* ======================================= STATIC TESTS ======================================= */
+
+static_assert(_C2Comparable<int>::value, "int is not comparable");
+static_assert(!_C2Comparable<void>::value, "void is comparable");
+
+struct C2_HIDE _test0 {
+    bool operator==(const _test0&);
+    bool operator!=(const _test0&);
+};
+struct C2_HIDE _test1 {
+    bool operator==(const _test1&);
+};
+struct C2_HIDE _test2 {
+    bool operator!=(const _test2&);
+};
+static_assert(_C2Comparable<_test0>::value, "class with == and != is not comparable");
+static_assert(_C2Comparable<_test1>::value, "class with == is not comparable");
+static_assert(_C2Comparable<_test2>::value, "class with != is not comparable");
+
+/* ======================================= C2PARAM TESTS ======================================= */
+
+struct _C2ParamInspector {
+    static void StaticTest();
+    static void StaticFlexTest();
+};
+
+// TEST_F(_C2ParamInspector, StaticTest) {
+void _C2ParamInspector::StaticTest() {
+    typedef C2Param::Index I;
+
+    // C2NumberStruct: baseIndex = kIndex                          (args)
+    static_assert(C2NumberStruct::baseIndex == kParamIndexNumber, "bad index");
+    static_assert(sizeof(C2NumberStruct) == 4, "bad size");
+
+    // C2NumberTuning:             kIndex | tun | global           (args)
+    static_assert(C2NumberTuning::baseIndex == kParamIndexNumber, "bad index");
+    static_assert(C2NumberTuning::typeIndex == (kParamIndexNumber | I::kTypeTuning | I::kDirGlobal), "bad index");
+    static_assert(sizeof(C2NumberTuning) == 12, "bad size");
+
+    static_assert(offsetof(C2NumberTuning, _mSize) == 0, "bad size");
+    static_assert(offsetof(C2NumberTuning, _mIndex) == 4, "bad offset");
+    static_assert(offsetof(C2NumberTuning, mNumber) == 8, "bad offset");
+
+    // C2NumberPortTuning:         kIndex | tun | port             (bool, args)
+    static_assert(sizeof(C2NumberPortTuning) == 12, "bad size");
+    // C2NumberPortTuning::input:  kIndex | tun | port | input     (args)
+    // C2NumberPortTuning::output: kIndex | tun | port | output    (args)
+    static_assert(C2NumberPortTuning::input::baseIndex ==
+                  kParamIndexNumber, "bad index");
+    static_assert(C2NumberPortTuning::input::typeIndex ==
+                  (kParamIndexNumber | I::kTypeTuning | I::kDirInput), "bad index");
+    static_assert(C2NumberPortTuning::output::baseIndex ==
+                  kParamIndexNumber, "bad index");
+    static_assert(C2NumberPortTuning::output::typeIndex ==
+                  (kParamIndexNumber | I::kTypeTuning | I::kDirOutput), "bad index");
+    static_assert(sizeof(C2NumberPortTuning::input) == 12, "bad size");
+    static_assert(sizeof(C2NumberPortTuning::output) == 12, "bad size");
+    static_assert(offsetof(C2NumberPortTuning::input, _mSize) == 0, "bad size");
+    static_assert(offsetof(C2NumberPortTuning::input, _mIndex) == 4, "bad offset");
+    static_assert(offsetof(C2NumberPortTuning::input, mNumber) == 8, "bad offset");
+    static_assert(offsetof(C2NumberPortTuning::output, _mSize) == 0, "bad size");
+    static_assert(offsetof(C2NumberPortTuning::output, _mIndex) == 4, "bad offset");
+    static_assert(offsetof(C2NumberPortTuning::output, mNumber) == 8, "bad offset");
+
+    // C2NumberStreamTuning:       kIndex | tun | str              (bool, uint, args)
+    static_assert(sizeof(C2NumberStreamTuning) == 12u, "bad size");
+    // C2NumberStreamTuning::input kIndex | tun | str | input      (int, args)
+    // C2NumberStreamTuning::output kIx   | tun | str | output     (int, args)
+    static_assert(C2NumberStreamTuning::input::baseIndex ==
+                  kParamIndexNumber, "bad index");
+    static_assert(C2NumberStreamTuning::input::typeIndex ==
+                  (kParamIndexNumber | I::kTypeTuning | I::kDirInput | I::kStreamFlag), "bad index");
+    static_assert(C2NumberStreamTuning::output::baseIndex ==
+                  kParamIndexNumber, "bad index");
+    static_assert(C2NumberStreamTuning::output::typeIndex ==
+                  (kParamIndexNumber | I::kTypeTuning | I::kDirOutput | I::kStreamFlag), "bad index");
+    static_assert(sizeof(C2NumberStreamTuning::input) == 12u, "bad size");
+    static_assert(sizeof(C2NumberStreamTuning::output) == 12u, "bad size");
+    static_assert(offsetof(C2NumberStreamTuning::input, _mSize) == 0, "bad size");
+    static_assert(offsetof(C2NumberStreamTuning::input, _mIndex) == 4, "bad offset");
+    static_assert(offsetof(C2NumberStreamTuning::input, mNumber) == 8, "bad offset");
+    static_assert(offsetof(C2NumberStreamTuning::output, _mSize) == 0, "bad size");
+    static_assert(offsetof(C2NumberStreamTuning::output, _mIndex) == 4, "bad offset");
+    static_assert(offsetof(C2NumberStreamTuning::output, mNumber) == 8, "bad offset");
+}
+
+void _C2ParamInspector::StaticFlexTest() {
+    typedef C2Param::Index I;
+
+    // C2NumbersStruct: baseIndex = kIndex                          (args)
+    static_assert(C2NumbersStruct::baseIndex == (I::kFlexibleFlag | kParamIndexNumbers), "bad index");
+    static_assert(sizeof(C2NumbersStruct) == 0, "bad size");
+
+    // C2NumbersTuning:             kIndex | tun | global           (args)
+    static_assert(C2NumbersTuning::baseIndex == (I::kFlexibleFlag | kParamIndexNumbers), "bad index");
+    static_assert(C2NumbersTuning::typeIndex == (I::kFlexibleFlag | kParamIndexNumbers | I::kTypeTuning | I::kDirGlobal), "bad index");
+    static_assert(sizeof(C2NumbersTuning) == 8, "bad size");
+
+    static_assert(offsetof(C2NumbersTuning, _mSize) == 0, "bad size");
+    static_assert(offsetof(C2NumbersTuning, _mIndex) == 4, "bad offset");
+    static_assert(offsetof(C2NumbersTuning, m.mNumbers) == 8, "bad offset");
+
+    // C2NumbersPortTuning:         kIndex | tun | port             (bool, args)
+    static_assert(sizeof(C2NumbersPortTuning) == 8, "bad size");
+    // C2NumbersPortTuning::input:  kIndex | tun | port | input     (args)
+    // C2NumbersPortTuning::output: kIndex | tun | port | output    (args)
+    static_assert(C2NumbersPortTuning::input::baseIndex ==
+                  (I::kFlexibleFlag | kParamIndexNumbers), "bad index");
+    static_assert(C2NumbersPortTuning::input::typeIndex ==
+                  (I::kFlexibleFlag | kParamIndexNumbers | I::kTypeTuning | I::kDirInput), "bad index");
+    static_assert(C2NumbersPortTuning::output::baseIndex ==
+                  (I::kFlexibleFlag | kParamIndexNumbers), "bad index");
+    static_assert(C2NumbersPortTuning::output::typeIndex ==
+                  (I::kFlexibleFlag | kParamIndexNumbers | I::kTypeTuning | I::kDirOutput), "bad index");
+    static_assert(sizeof(C2NumbersPortTuning::input) == 8, "bad size");
+    static_assert(sizeof(C2NumbersPortTuning::output) == 8, "bad size");
+    static_assert(offsetof(C2NumbersPortTuning::input, _mSize) == 0, "bad size");
+    static_assert(offsetof(C2NumbersPortTuning::input, _mIndex) == 4, "bad offset");
+    static_assert(offsetof(C2NumbersPortTuning::input, m.mNumbers) == 8, "bad offset");
+    static_assert(offsetof(C2NumbersPortTuning::output, _mSize) == 0, "bad size");
+    static_assert(offsetof(C2NumbersPortTuning::output, _mIndex) == 4, "bad offset");
+    static_assert(offsetof(C2NumbersPortTuning::output, m.mNumbers) == 8, "bad offset");
+
+    // C2NumbersStreamTuning:       kIndex | tun | str              (bool, uint, args)
+    static_assert(sizeof(C2NumbersStreamTuning) == 8, "bad size");
+    // C2NumbersStreamTuning::input kIndex | tun | str | input      (int, args)
+    // C2NumbersStreamTuning::output kIx   | tun | str | output     (int, args)
+    static_assert(C2NumbersStreamTuning::input::baseIndex ==
+                  (I::kFlexibleFlag | kParamIndexNumbers), "bad index");
+    static_assert(C2NumbersStreamTuning::input::typeIndex ==
+                  (I::kFlexibleFlag | kParamIndexNumbers | I::kTypeTuning | I::kDirInput | I::kStreamFlag), "bad index");
+    static_assert(C2NumbersStreamTuning::output::baseIndex ==
+                  (I::kFlexibleFlag | kParamIndexNumbers), "bad index");
+    static_assert(C2NumbersStreamTuning::output::typeIndex ==
+                  (I::kFlexibleFlag | kParamIndexNumbers | I::kTypeTuning | I::kDirOutput | I::kStreamFlag), "bad index");
+    static_assert(sizeof(C2NumbersStreamTuning::input) == 8, "bad size");
+    static_assert(sizeof(C2NumbersStreamTuning::output) == 8, "bad size");
+    static_assert(offsetof(C2NumbersStreamTuning::input, _mSize) == 0, "bad size");
+    static_assert(offsetof(C2NumbersStreamTuning::input, _mIndex) == 4, "bad offset");
+    static_assert(offsetof(C2NumbersStreamTuning::input, m.mNumbers) == 8, "bad offset");
+    static_assert(offsetof(C2NumbersStreamTuning::output, _mSize) == 0, "bad size");
+    static_assert(offsetof(C2NumbersStreamTuning::output, _mIndex) == 4, "bad offset");
+    static_assert(offsetof(C2NumbersStreamTuning::output, m.mNumbers) == 8, "bad offset");
+}
+
+TEST_F(C2ParamTest, ParamOpsTest) {
+    const C2NumberStruct str(100);
+    C2NumberStruct bstr;
+
+    {
+        EXPECT_EQ(100, str.mNumber);
+        bstr.mNumber = 100;
+
+        C2Param::BaseIndex index = C2NumberStruct::baseIndex;
+        EXPECT_FALSE(index.isVendor());
+        EXPECT_FALSE(index.isFlexible());
+        EXPECT_EQ(index.baseIndex(), kParamIndexNumber);
+        EXPECT_EQ(index.paramIndex(), kParamIndexNumber);
+    }
+
+    const C2NumberTuning tun(100);
+    C2NumberTuning btun;
+
+    {
+        // flags & invariables
+        for (const auto &p : { tun, btun }) {
+            EXPECT_TRUE((bool)p);
+            EXPECT_FALSE(!p);
+            EXPECT_EQ(12u, p.size());
+
+            EXPECT_FALSE(p.isVendor());
+            EXPECT_FALSE(p.isFlexible());
+            EXPECT_TRUE(p.isGlobal());
+            EXPECT_FALSE(p.forInput());
+            EXPECT_FALSE(p.forOutput());
+            EXPECT_FALSE(p.forStream());
+            EXPECT_FALSE(p.forPort());
+        }
+
+        // value
+        EXPECT_EQ(100, tun.mNumber);
+        EXPECT_EQ(0, btun.mNumber);
+        EXPECT_FALSE(tun == btun);
+        EXPECT_FALSE(tun.operator==(btun));
+        EXPECT_TRUE(tun != btun);
+        EXPECT_TRUE(tun.operator!=(btun));
+        btun.mNumber = 100;
+        EXPECT_EQ(tun, btun);
+
+        // index
+        EXPECT_EQ(C2Param::Type(tun.type()).baseIndex(), C2NumberStruct::baseIndex);
+        EXPECT_EQ(C2Param::Type(tun.type()).paramIndex(), kParamIndexNumber);
+        EXPECT_EQ(tun.type(), C2NumberTuning::typeIndex);
+        EXPECT_EQ(tun.stream(), ~0u);
+
+        C2Param::BaseIndex index = C2NumberTuning::baseIndex;
+        EXPECT_FALSE(index.isVendor());
+        EXPECT_FALSE(index.isFlexible());
+        EXPECT_EQ(index.baseIndex(), kParamIndexNumber);
+        EXPECT_EQ(index.paramIndex(), kParamIndexNumber);
+
+        C2Param::Type type = C2NumberTuning::typeIndex;
+        EXPECT_FALSE(type.isVendor());
+        EXPECT_FALSE(type.isFlexible());
+        EXPECT_TRUE(type.isGlobal());
+        EXPECT_FALSE(type.forInput());
+        EXPECT_FALSE(type.forOutput());
+        EXPECT_FALSE(type.forStream());
+        EXPECT_FALSE(type.forPort());
+
+        EXPECT_EQ(C2NumberTuning::From(nullptr), nullptr);
+        EXPECT_EQ(C2NumberTuning::From(&tun), &tun);
+        EXPECT_EQ(C2NumberPortTuning::From(&tun), nullptr);
+        EXPECT_EQ(C2NumberPortTuning::input::From(&tun), nullptr);
+        EXPECT_EQ(C2NumberPortTuning::output::From(&tun), nullptr);
+        EXPECT_EQ(C2NumberStreamTuning::From(&tun), nullptr);
+        EXPECT_EQ(C2NumberStreamTuning::input::From(&tun), nullptr);
+        EXPECT_EQ(C2NumberStreamTuning::output::From(&tun), nullptr);
+    }
+
+    const C2NumberPortTuning outp1(true, 100), inp1(false, 100);
+    C2NumberPortTuning boutp1, binp1, binp3(false, 100);
+    const C2NumberPortTuning::input inp2(100);
+    C2NumberPortTuning::input binp2;
+    const C2NumberPortTuning::output outp2(100);
+    C2NumberPortTuning::output boutp2;
+
+    {
+        static_assert(canCallSetPort(binp3), "should be able to");
+        static_assert(canCallSetPort(binp1), "should be able to");
+        static_assert(!canCallSetPort(inp1), "should not be able to (const)");
+        static_assert(!canCallSetPort(inp2), "should not be able to (const & type)");
+        static_assert(!canCallSetPort(binp2), "should not be able to (type)");
+
+        // flags & invariables
+        for (const auto &p : { outp1, inp1, boutp1 }) {
+            EXPECT_EQ(12u, p.size());
+            EXPECT_FALSE(p.isVendor());
+            EXPECT_FALSE(p.isFlexible());
+            EXPECT_FALSE(p.isGlobal());
+            EXPECT_FALSE(p.forStream());
+            EXPECT_TRUE(p.forPort());
+        }
+        for (const auto &p : { inp2, binp2 }) {
+            EXPECT_EQ(12u, p.size());
+            EXPECT_FALSE(p.isVendor());
+            EXPECT_FALSE(p.isFlexible());
+            EXPECT_FALSE(p.isGlobal());
+            EXPECT_FALSE(p.forStream());
+            EXPECT_TRUE(p.forPort());
+        }
+        for (const auto &p : { outp2, boutp2 }) {
+            EXPECT_EQ(12u, p.size());
+            EXPECT_FALSE(p.isVendor());
+            EXPECT_FALSE(p.isFlexible());
+            EXPECT_FALSE(p.isGlobal());
+            EXPECT_FALSE(p.forStream());
+            EXPECT_TRUE(p.forPort());
+        }
+
+        // port specific flags & invariables
+        EXPECT_FALSE(outp1.forInput());
+        EXPECT_TRUE(outp1.forOutput());
+
+        EXPECT_TRUE(inp1.forInput());
+        EXPECT_FALSE(inp1.forOutput());
+
+        for (const auto &p : { outp1, inp1 }) {
+            EXPECT_TRUE((bool)p);
+            EXPECT_FALSE(!p);
+            EXPECT_EQ(100, p.mNumber);
+        }
+        for (const auto &p : { outp2, boutp2 }) {
+            EXPECT_TRUE((bool)p);
+            EXPECT_FALSE(!p);
+
+            EXPECT_FALSE(p.forInput());
+            EXPECT_TRUE(p.forOutput());
+        }
+        for (const auto &p : { inp2, binp2 }) {
+            EXPECT_TRUE((bool)p);
+            EXPECT_FALSE(!p);
+
+            EXPECT_TRUE(p.forInput());
+            EXPECT_FALSE(p.forOutput());
+        }
+        for (const auto &p : { boutp1 } ) {
+            EXPECT_FALSE((bool)p);
+            EXPECT_TRUE(!p);
+
+            EXPECT_FALSE(p.forInput());
+            EXPECT_FALSE(p.forOutput());
+            EXPECT_EQ(0, p.mNumber);
+        }
+
+        // values
+        EXPECT_EQ(100, inp2.mNumber);
+        EXPECT_EQ(100, outp2.mNumber);
+        EXPECT_EQ(0, binp1.mNumber);
+        EXPECT_EQ(0, binp2.mNumber);
+        EXPECT_EQ(0, boutp1.mNumber);
+        EXPECT_EQ(0, boutp2.mNumber);
+
+        EXPECT_TRUE(inp1 != outp1);
+        EXPECT_TRUE(inp1 == inp2);
+        EXPECT_TRUE(outp1 == outp2);
+        EXPECT_TRUE(binp1 == boutp1);
+        EXPECT_TRUE(binp2 != boutp2);
+
+        EXPECT_TRUE(inp1 != binp1);
+        binp1.mNumber = 100;
+        EXPECT_TRUE(inp1 != binp1);
+        binp1.setPort(false /* output */);
+        EXPECT_TRUE((bool)binp1);
+        EXPECT_FALSE(!binp1);
+        EXPECT_TRUE(inp1 == binp1);
+
+        EXPECT_TRUE(inp2 != binp2);
+        binp2.mNumber = 100;
+        EXPECT_TRUE(inp2 == binp2);
+
+        binp1.setPort(true /* output */);
+        EXPECT_TRUE(outp1 == binp1);
+
+        EXPECT_TRUE(outp1 != boutp1);
+        boutp1.mNumber = 100;
+        EXPECT_TRUE(outp1 != boutp1);
+        boutp1.setPort(true /* output */);
+        EXPECT_TRUE((bool)boutp1);
+        EXPECT_FALSE(!boutp1);
+        EXPECT_TRUE(outp1 == boutp1);
+
+        EXPECT_TRUE(outp2 != boutp2);
+        boutp2.mNumber = 100;
+        EXPECT_TRUE(outp2 == boutp2);
+
+        boutp1.setPort(false /* output */);
+        EXPECT_TRUE(inp1 == boutp1);
+
+        // index
+        EXPECT_EQ(C2Param::Type(inp1.type()).baseIndex(), C2NumberStruct::baseIndex);
+        EXPECT_EQ(C2Param::Type(inp1.type()).paramIndex(), kParamIndexNumber);
+        EXPECT_EQ(inp1.type(), C2NumberPortTuning::input::typeIndex);
+        EXPECT_EQ(inp1.stream(), ~0u);
+
+        EXPECT_EQ(C2Param::Type(inp2.type()).baseIndex(), C2NumberStruct::baseIndex);
+        EXPECT_EQ(C2Param::Type(inp2.type()).paramIndex(), kParamIndexNumber);
+        EXPECT_EQ(inp2.type(), C2NumberPortTuning::input::typeIndex);
+        EXPECT_EQ(inp2.stream(), ~0u);
+
+        EXPECT_EQ(C2Param::Type(outp1.type()).baseIndex(), C2NumberStruct::baseIndex);
+        EXPECT_EQ(C2Param::Type(outp1.type()).paramIndex(), kParamIndexNumber);
+        EXPECT_EQ(outp1.type(), C2NumberPortTuning::output::typeIndex);
+        EXPECT_EQ(outp1.stream(), ~0u);
+
+        EXPECT_EQ(C2Param::Type(outp2.type()).baseIndex(), C2NumberStruct::baseIndex);
+        EXPECT_EQ(C2Param::Type(outp2.type()).paramIndex(), kParamIndexNumber);
+        EXPECT_EQ(outp2.type(), C2NumberPortTuning::output::typeIndex);
+        EXPECT_EQ(outp2.stream(), ~0u);
+
+        C2Param::BaseIndex index = C2NumberPortTuning::input::typeIndex;
+        EXPECT_FALSE(index.isVendor());
+        EXPECT_FALSE(index.isFlexible());
+        EXPECT_EQ(index.baseIndex(), kParamIndexNumber);
+        EXPECT_EQ(index.paramIndex(), kParamIndexNumber);
+
+        index = C2NumberPortTuning::output::typeIndex;
+        EXPECT_FALSE(index.isVendor());
+        EXPECT_FALSE(index.isFlexible());
+        EXPECT_EQ(index.baseIndex(), kParamIndexNumber);
+        EXPECT_EQ(index.paramIndex(), kParamIndexNumber);
+
+        C2Param::Type type = C2NumberPortTuning::input::typeIndex;
+        EXPECT_FALSE(type.isVendor());
+        EXPECT_FALSE(type.isFlexible());
+        EXPECT_FALSE(type.isGlobal());
+        EXPECT_TRUE(type.forInput());
+        EXPECT_FALSE(type.forOutput());
+        EXPECT_FALSE(type.forStream());
+        EXPECT_TRUE(type.forPort());
+
+        type = C2NumberPortTuning::output::typeIndex;
+        EXPECT_FALSE(type.isVendor());
+        EXPECT_FALSE(type.isFlexible());
+        EXPECT_FALSE(type.isGlobal());
+        EXPECT_FALSE(type.forInput());
+        EXPECT_TRUE(type.forOutput());
+        EXPECT_FALSE(type.forStream());
+        EXPECT_TRUE(type.forPort());
+
+        EXPECT_EQ(C2NumberPortTuning::From(nullptr), nullptr);
+        EXPECT_EQ(C2NumberPortTuning::input::From(nullptr), nullptr);
+        EXPECT_EQ(C2NumberPortTuning::output::From(nullptr), nullptr);
+        EXPECT_EQ(C2NumberTuning::From(&inp1), nullptr);
+        EXPECT_EQ(C2NumberTuning::From(&inp2), nullptr);
+        EXPECT_EQ(C2NumberTuning::From(&outp1), nullptr);
+        EXPECT_EQ(C2NumberTuning::From(&outp2), nullptr);
+        EXPECT_EQ(C2NumberPortTuning::From(&inp1), &inp1);
+        EXPECT_EQ(C2NumberPortTuning::From(&inp2), (C2NumberPortTuning*)&inp2);
+        EXPECT_EQ(C2NumberPortTuning::From(&outp1), &outp1);
+        EXPECT_EQ(C2NumberPortTuning::From(&outp2), (C2NumberPortTuning*)&outp2);
+        EXPECT_EQ(C2NumberPortTuning::input::From(&inp1), (C2NumberPortTuning::input*)&inp1);
+        EXPECT_EQ(C2NumberPortTuning::input::From(&inp2), &inp2);
+        EXPECT_EQ(C2NumberPortTuning::input::From(&outp1), nullptr);
+        EXPECT_EQ(C2NumberPortTuning::input::From(&outp2), nullptr);
+        EXPECT_EQ(C2NumberPortTuning::output::From(&inp1), nullptr);
+        EXPECT_EQ(C2NumberPortTuning::output::From(&inp2), nullptr);
+        EXPECT_EQ(C2NumberPortTuning::output::From(&outp1), (C2NumberPortTuning::output*)&outp1);
+        EXPECT_EQ(C2NumberPortTuning::output::From(&outp2), &outp2);
+        EXPECT_EQ(C2NumberStreamTuning::From(&inp1), nullptr);
+        EXPECT_EQ(C2NumberStreamTuning::From(&inp2), nullptr);
+        EXPECT_EQ(C2NumberStreamTuning::From(&outp1), nullptr);
+        EXPECT_EQ(C2NumberStreamTuning::From(&outp2), nullptr);
+        EXPECT_EQ(C2NumberStreamTuning::input::From(&inp1), nullptr);
+        EXPECT_EQ(C2NumberStreamTuning::input::From(&inp2), nullptr);
+        EXPECT_EQ(C2NumberStreamTuning::input::From(&outp1), nullptr);
+        EXPECT_EQ(C2NumberStreamTuning::input::From(&outp2), nullptr);
+        EXPECT_EQ(C2NumberStreamTuning::output::From(&inp1), nullptr);
+        EXPECT_EQ(C2NumberStreamTuning::output::From(&inp2), nullptr);
+        EXPECT_EQ(C2NumberStreamTuning::output::From(&outp1), nullptr);
+        EXPECT_EQ(C2NumberStreamTuning::output::From(&outp2), nullptr);
+    }
+
+    const C2NumberStreamTuning outs1(true, 1u, 100), ins1(false, 1u, 100);
+    C2NumberStreamTuning bouts1, bins1, bins3(false, 1u, 100);
+    const C2NumberStreamTuning::input ins2(1u, 100);
+    C2NumberStreamTuning::input bins2;
+    const C2NumberStreamTuning::output outs2(1u, 100);
+    C2NumberStreamTuning::output bouts2;
+
+    {
+        static_assert(canCallSetPort(bins3), "should be able to");
+        static_assert(canCallSetPort(bins1), "should be able to");
+        static_assert(!canCallSetPort(ins1), "should not be able to (const)");
+        static_assert(!canCallSetPort(ins2), "should not be able to (const & type)");
+        static_assert(!canCallSetPort(bins2), "should not be able to (type)");
+
+        // flags & invariables
+        for (const auto &p : { outs1, ins1, bouts1 }) {
+            EXPECT_EQ(12u, p.size());
+            EXPECT_FALSE(p.isVendor());
+            EXPECT_FALSE(p.isFlexible());
+            EXPECT_FALSE(p.isGlobal());
+            EXPECT_TRUE(p.forStream());
+            EXPECT_FALSE(p.forPort());
+        }
+        for (const auto &p : { ins2, bins2 }) {
+            EXPECT_EQ(12u, p.size());
+            EXPECT_FALSE(p.isVendor());
+            EXPECT_FALSE(p.isFlexible());
+            EXPECT_FALSE(p.isGlobal());
+            EXPECT_TRUE(p.forStream());
+            EXPECT_FALSE(p.forPort());
+        }
+        for (const auto &p : { outs2, bouts2 }) {
+            EXPECT_EQ(12u, p.size());
+            EXPECT_FALSE(p.isVendor());
+            EXPECT_FALSE(p.isFlexible());
+            EXPECT_FALSE(p.isGlobal());
+            EXPECT_TRUE(p.forStream());
+            EXPECT_FALSE(p.forPort());
+        }
+
+        // port specific flags & invariables
+        EXPECT_FALSE(outs1.forInput());
+        EXPECT_TRUE(outs1.forOutput());
+
+        EXPECT_TRUE(ins1.forInput());
+        EXPECT_FALSE(ins1.forOutput());
+
+        for (const auto &p : { outs1, ins1 }) {
+            EXPECT_TRUE((bool)p);
+            EXPECT_FALSE(!p);
+            EXPECT_EQ(100, p.mNumber);
+            EXPECT_EQ(1u, p.stream());
+        }
+        for (const auto &p : { outs2, bouts2 }) {
+            EXPECT_TRUE((bool)p);
+            EXPECT_FALSE(!p);
+
+            EXPECT_FALSE(p.forInput());
+            EXPECT_TRUE(p.forOutput());
+        }
+        for (const auto &p : { ins2, bins2 }) {
+            EXPECT_TRUE((bool)p);
+            EXPECT_FALSE(!p);
+
+            EXPECT_TRUE(p.forInput());
+            EXPECT_FALSE(p.forOutput());
+        }
+        for (const auto &p : { bouts1 } ) {
+            EXPECT_FALSE((bool)p);
+            EXPECT_TRUE(!p);
+
+            EXPECT_FALSE(p.forInput());
+            EXPECT_FALSE(p.forOutput());
+            EXPECT_EQ(0, p.mNumber);
+        }
+
+        // values
+        EXPECT_EQ(100, ins2.mNumber);
+        EXPECT_EQ(100, outs2.mNumber);
+        EXPECT_EQ(0, bins1.mNumber);
+        EXPECT_EQ(0, bins2.mNumber);
+        EXPECT_EQ(0, bouts1.mNumber);
+        EXPECT_EQ(0, bouts2.mNumber);
+
+        EXPECT_EQ(1u, ins2.stream());
+        EXPECT_EQ(1u, outs2.stream());
+        EXPECT_EQ(0u, bins1.stream());
+        EXPECT_EQ(0u, bins2.stream());
+        EXPECT_EQ(0u, bouts1.stream());
+        EXPECT_EQ(0u, bouts2.stream());
+
+        EXPECT_TRUE(ins1 != outs1);
+        EXPECT_TRUE(ins1 == ins2);
+        EXPECT_TRUE(outs1 == outs2);
+        EXPECT_TRUE(bins1 == bouts1);
+        EXPECT_TRUE(bins2 != bouts2);
+
+        EXPECT_TRUE(ins1 != bins1);
+        bins1.mNumber = 100;
+        EXPECT_TRUE(ins1 != bins1);
+        bins1.setPort(false /* output */);
+        EXPECT_TRUE(ins1 != bins1);
+        bins1.setStream(1u);
+        EXPECT_TRUE(ins1 == bins1);
+
+        EXPECT_TRUE(ins2 != bins2);
+        bins2.mNumber = 100;
+        EXPECT_TRUE(ins2 != bins2);
+        bins2.setStream(1u);
+        EXPECT_TRUE(ins2 == bins2);
+
+        bins1.setPort(true /* output */);
+        EXPECT_TRUE(outs1 == bins1);
+
+        EXPECT_TRUE(outs1 != bouts1);
+        bouts1.mNumber = 100;
+        EXPECT_TRUE(outs1 != bouts1);
+        bouts1.setPort(true /* output */);
+        EXPECT_TRUE(outs1 != bouts1);
+        bouts1.setStream(1u);
+        EXPECT_TRUE(outs1 == bouts1);
+
+        EXPECT_TRUE(outs2 != bouts2);
+        bouts2.mNumber = 100;
+        EXPECT_TRUE(outs2 != bouts2);
+        bouts2.setStream(1u);
+        EXPECT_TRUE(outs2 == bouts2);
+
+        bouts1.setPort(false /* output */);
+        EXPECT_TRUE(ins1 == bouts1);
+
+        // index
+        EXPECT_EQ(C2Param::Type(ins1.type()).baseIndex(), C2NumberStruct::baseIndex);
+        EXPECT_EQ(C2Param::Type(ins1.type()).paramIndex(), kParamIndexNumber);
+        EXPECT_EQ(ins1.type(), C2NumberStreamTuning::input::typeIndex);
+
+        EXPECT_EQ(C2Param::Type(ins2.type()).baseIndex(), C2NumberStruct::baseIndex);
+        EXPECT_EQ(C2Param::Type(ins2.type()).paramIndex(), kParamIndexNumber);
+        EXPECT_EQ(ins2.type(), C2NumberStreamTuning::input::typeIndex);
+
+        EXPECT_EQ(C2Param::Type(outs1.type()).baseIndex(), C2NumberStruct::baseIndex);
+        EXPECT_EQ(C2Param::Type(outs1.type()).paramIndex(), kParamIndexNumber);
+        EXPECT_EQ(outs1.type(), C2NumberStreamTuning::output::typeIndex);
+
+        EXPECT_EQ(C2Param::Type(outs2.type()).baseIndex(), C2NumberStruct::baseIndex);
+        EXPECT_EQ(C2Param::Type(outs2.type()).paramIndex(), kParamIndexNumber);
+        EXPECT_EQ(outs2.type(), C2NumberStreamTuning::output::typeIndex);
+
+        C2Param::BaseIndex index = C2NumberStreamTuning::input::typeIndex;
+        EXPECT_FALSE(index.isVendor());
+        EXPECT_FALSE(index.isFlexible());
+        EXPECT_EQ(index.baseIndex(), kParamIndexNumber);
+        EXPECT_EQ(index.paramIndex(), kParamIndexNumber);
+
+        index = C2NumberStreamTuning::output::typeIndex;
+        EXPECT_FALSE(index.isVendor());
+        EXPECT_FALSE(index.isFlexible());
+        EXPECT_EQ(index.baseIndex(), kParamIndexNumber);
+        EXPECT_EQ(index.paramIndex(), kParamIndexNumber);
+
+        C2Param::Type type = C2NumberStreamTuning::input::typeIndex;
+        EXPECT_FALSE(type.isVendor());
+        EXPECT_FALSE(type.isFlexible());
+        EXPECT_FALSE(type.isGlobal());
+        EXPECT_TRUE(type.forInput());
+        EXPECT_FALSE(type.forOutput());
+        EXPECT_TRUE(type.forStream());
+        EXPECT_FALSE(type.forPort());
+
+        type = C2NumberStreamTuning::output::typeIndex;
+        EXPECT_FALSE(type.isVendor());
+        EXPECT_FALSE(type.isFlexible());
+        EXPECT_FALSE(type.isGlobal());
+        EXPECT_FALSE(type.forInput());
+        EXPECT_TRUE(type.forOutput());
+        EXPECT_TRUE(type.forStream());
+        EXPECT_FALSE(type.forPort());
+
+        EXPECT_EQ(C2NumberPortTuning::From(nullptr), nullptr);
+        EXPECT_EQ(C2NumberPortTuning::input::From(nullptr), nullptr);
+        EXPECT_EQ(C2NumberPortTuning::output::From(nullptr), nullptr);
+        EXPECT_EQ(C2NumberTuning::From(&ins1), nullptr);
+        EXPECT_EQ(C2NumberTuning::From(&ins2), nullptr);
+        EXPECT_EQ(C2NumberTuning::From(&outs1), nullptr);
+        EXPECT_EQ(C2NumberTuning::From(&outs2), nullptr);
+        EXPECT_EQ(C2NumberPortTuning::From(&ins1), nullptr);
+        EXPECT_EQ(C2NumberPortTuning::From(&ins2), nullptr);
+        EXPECT_EQ(C2NumberPortTuning::From(&outs1), nullptr);
+        EXPECT_EQ(C2NumberPortTuning::From(&outs2), nullptr);
+        EXPECT_EQ(C2NumberPortTuning::input::From(&ins1), nullptr);
+        EXPECT_EQ(C2NumberPortTuning::input::From(&ins2), nullptr);
+        EXPECT_EQ(C2NumberPortTuning::input::From(&outs1), nullptr);
+        EXPECT_EQ(C2NumberPortTuning::input::From(&outs2), nullptr);
+        EXPECT_EQ(C2NumberPortTuning::output::From(&ins1), nullptr);
+        EXPECT_EQ(C2NumberPortTuning::output::From(&ins2), nullptr);
+        EXPECT_EQ(C2NumberPortTuning::output::From(&outs1), nullptr);
+        EXPECT_EQ(C2NumberPortTuning::output::From(&outs2), nullptr);
+        EXPECT_EQ(C2NumberStreamTuning::From(&ins1), &ins1);
+        EXPECT_EQ(C2NumberStreamTuning::From(&ins2), (C2NumberStreamTuning*)&ins2);
+        EXPECT_EQ(C2NumberStreamTuning::From(&outs1), &outs1);
+        EXPECT_EQ(C2NumberStreamTuning::From(&outs2), (C2NumberStreamTuning*)&outs2);
+        EXPECT_EQ(C2NumberStreamTuning::input::From(&ins1), (C2NumberStreamTuning::input*)&ins1);
+        EXPECT_EQ(C2NumberStreamTuning::input::From(&ins2), &ins2);
+        EXPECT_EQ(C2NumberStreamTuning::input::From(&outs1), nullptr);
+        EXPECT_EQ(C2NumberStreamTuning::input::From(&outs2), nullptr);
+        EXPECT_EQ(C2NumberStreamTuning::output::From(&ins1), nullptr);
+        EXPECT_EQ(C2NumberStreamTuning::output::From(&ins2), nullptr);
+        EXPECT_EQ(C2NumberStreamTuning::output::From(&outs1), (C2NumberStreamTuning::output*)&outs1);
+        EXPECT_EQ(C2NumberStreamTuning::output::From(&outs2), &outs2);
+
+    }
+
+    {
+        uint32_t videoWidth[] = { 12u, C2NumberStreamTuning::output::typeIndex, 100 };
+        C2Param *p1 = C2Param::From(videoWidth, sizeof(videoWidth));
+        EXPECT_NE(p1, nullptr);
+        EXPECT_EQ(12u, p1->size());
+        EXPECT_EQ(p1->type(), C2NumberStreamTuning::output::typeIndex);
+
+        p1 = C2Param::From(videoWidth, sizeof(videoWidth) + 2);
+        EXPECT_EQ(p1, nullptr);
+
+        p1 = C2Param::From(videoWidth, sizeof(videoWidth) - 2);
+        EXPECT_EQ(p1, nullptr);
+
+        p1 = C2Param::From(videoWidth, 3);
+        EXPECT_EQ(p1, nullptr);
+
+        p1 = C2Param::From(videoWidth, 0);
+        EXPECT_EQ(p1, nullptr);
+    }
+}
+
+void StaticTestAddBaseIndex() {
+    struct nobase {};
+    struct base { enum : uint32_t { baseIndex = 1 }; };
+    static_assert(C2AddBaseIndex<nobase, 2>::baseIndex == 2, "should be 2");
+    static_assert(C2AddBaseIndex<base, 1>::baseIndex == 1, "should be 1");
+}
+
+class TestFlexHelper {
+    struct _Flex {
+        int32_t a;
+        char b[];
+        _Flex() {}
+        FLEX(_Flex, b);
+    };
+
+    struct _BoFlex {
+        _Flex a;
+        _BoFlex() {}
+        FLEX(_BoFlex, a);
+    };
+
+    struct _NonFlex {
+    };
+
+
+    static void StaticTest() {
+        static_assert(std::is_same<_C2FlexHelper<char>::flexType, void>::value, "should be void");
+        static_assert(std::is_same<_C2FlexHelper<char[]>::flexType, char>::value, "should be char");
+        static_assert(std::is_same<_C2FlexHelper<_Flex>::flexType, char>::value, "should be char");
+
+        static_assert(std::is_same<_C2FlexHelper<_BoFlex>::flexType, char>::value, "should be void");
+
+        static_assert(_C2Flexible<_Flex>::value, "should be flexible");
+        static_assert(!_C2Flexible<_NonFlex>::value, "should not be flexible");
+    }
+};
+
+TEST_F(C2ParamTest, FlexParamOpsTest) {
+//    const C2NumbersStruct str{100};
+    C2NumbersStruct bstr;
+    {
+//        EXPECT_EQ(100, str->m.mNumbers[0]);
+        (void)&bstr.mNumbers[0];
+
+        C2Param::BaseIndex index = C2NumbersStruct::baseIndex;
+        EXPECT_FALSE(index.isVendor());
+        EXPECT_TRUE(index.isFlexible());
+        EXPECT_EQ(index.baseIndex(), kParamIndexNumbers | C2Param::BaseIndex::_kFlexibleFlag);
+        EXPECT_EQ(index.paramIndex(), kParamIndexNumbers);
+    }
+
+    std::unique_ptr<C2NumbersTuning> tun_ = C2NumbersTuning::alloc_unique(1);
+    tun_->m.mNumbers[0] = 100;
+    std::unique_ptr<const C2NumbersTuning> tun = std::move(tun_);
+    std::shared_ptr<C2NumbersTuning> btun = C2NumbersTuning::alloc_shared(1);
+
+    {
+        // flags & invariables
+        const C2NumbersTuning *T[] = { tun.get(), btun.get() };
+        for (const auto p : T) {
+            EXPECT_TRUE((bool)(*p));
+            EXPECT_FALSE(!(*p));
+            EXPECT_EQ(12u, p->size());
+
+            EXPECT_FALSE(p->isVendor());
+            EXPECT_TRUE(p->isFlexible());
+            EXPECT_TRUE(p->isGlobal());
+            EXPECT_FALSE(p->forInput());
+            EXPECT_FALSE(p->forOutput());
+            EXPECT_FALSE(p->forStream());
+            EXPECT_FALSE(p->forPort());
+        }
+
+        // value
+        EXPECT_EQ(100, tun->m.mNumbers[0]);
+        EXPECT_EQ(0, btun->m.mNumbers[0]);
+        EXPECT_FALSE(*tun == *btun);
+        EXPECT_FALSE(tun->operator==(*btun));
+        EXPECT_TRUE(*tun != *btun);
+        EXPECT_TRUE(tun->operator!=(*btun));
+        btun->m.mNumbers[0] = 100;
+        EXPECT_EQ(*tun, *btun);
+
+        // index
+        EXPECT_EQ(C2Param::Type(tun->type()).baseIndex(), C2NumbersStruct::baseIndex);
+        EXPECT_EQ(C2Param::Type(tun->type()).paramIndex(), kParamIndexNumbers);
+        EXPECT_EQ(tun->type(), C2NumbersTuning::typeIndex);
+        EXPECT_EQ(tun->stream(), ~0u);
+
+        C2Param::BaseIndex index = C2NumbersTuning::baseIndex;
+        EXPECT_FALSE(index.isVendor());
+        EXPECT_TRUE(index.isFlexible());
+        EXPECT_EQ(index.baseIndex(), kParamIndexNumbers | C2Param::BaseIndex::_kFlexibleFlag);
+        EXPECT_EQ(index.paramIndex(), kParamIndexNumbers);
+
+        C2Param::Type type = C2NumbersTuning::typeIndex;
+        EXPECT_FALSE(type.isVendor());
+        EXPECT_TRUE(type.isFlexible());
+        EXPECT_TRUE(type.isGlobal());
+        EXPECT_FALSE(type.forInput());
+        EXPECT_FALSE(type.forOutput());
+        EXPECT_FALSE(type.forStream());
+        EXPECT_FALSE(type.forPort());
+
+        EXPECT_EQ(C2NumbersTuning::From(nullptr), nullptr);
+        EXPECT_EQ(C2NumbersTuning::From(tun.get()), tun.get());
+        EXPECT_EQ(C2NumbersPortTuning::From(tun.get()), nullptr);
+        EXPECT_EQ(C2NumbersPortTuning::input::From(tun.get()), nullptr);
+        EXPECT_EQ(C2NumbersPortTuning::output::From(tun.get()), nullptr);
+        EXPECT_EQ(C2NumbersStreamTuning::From(tun.get()), nullptr);
+        EXPECT_EQ(C2NumbersStreamTuning::input::From(tun.get()), nullptr);
+        EXPECT_EQ(C2NumbersStreamTuning::output::From(tun.get()), nullptr);
+    }
+
+    std::unique_ptr<C2NumbersPortTuning> outp1_(C2NumbersPortTuning::alloc_unique(1, true)),
+            inp1_ = C2NumbersPortTuning::alloc_unique(1, false);
+    outp1_->m.mNumbers[0] = 100;
+    inp1_->m.mNumbers[0] = 100;
+    std::unique_ptr<const C2NumbersPortTuning> outp1 = std::move(outp1_);
+    std::unique_ptr<const C2NumbersPortTuning> inp1 = std::move(inp1_);
+    std::shared_ptr<C2NumbersPortTuning> boutp1(C2NumbersPortTuning::alloc_shared(1)),
+            binp1 = C2NumbersPortTuning::alloc_shared(1),
+            binp3 = C2NumbersPortTuning::alloc_shared(1, false);
+    binp3->m.mNumbers[0] = 100;
+    std::unique_ptr<C2NumbersPortTuning::input> inp2_(C2NumbersPortTuning::input::alloc_unique(1));
+    inp2_->m.mNumbers[0] = 100;
+    std::unique_ptr<const C2NumbersPortTuning::input> inp2 = std::move(inp2_);
+    std::shared_ptr<C2NumbersPortTuning::input> binp2(C2NumbersPortTuning::input::alloc_shared(1));
+    std::unique_ptr<C2NumbersPortTuning::output> outp2_(C2NumbersPortTuning::output::alloc_unique(1));
+    outp2_->m.mNumbers[0] = 100;
+    std::unique_ptr<const C2NumbersPortTuning::output> outp2 = std::move(outp2_);
+    std::shared_ptr<C2NumbersPortTuning::output> boutp2(C2NumbersPortTuning::output::alloc_shared(1));
+
+    {
+        static_assert(canCallSetPort(*binp3), "should be able to");
+        static_assert(canCallSetPort(*binp1), "should be able to");
+        static_assert(!canCallSetPort(*inp1), "should not be able to (const)");
+        static_assert(!canCallSetPort(*inp2), "should not be able to (const & type)");
+        static_assert(!canCallSetPort(*binp2), "should not be able to (type)");
+
+        // flags & invariables
+        const C2NumbersPortTuning *P[] = { outp1.get(), inp1.get(), boutp1.get() };
+        for (const auto p : P) {
+            EXPECT_EQ(12u, p->size());
+            EXPECT_FALSE(p->isVendor());
+            EXPECT_TRUE(p->isFlexible());
+            EXPECT_FALSE(p->isGlobal());
+            EXPECT_FALSE(p->forStream());
+            EXPECT_TRUE(p->forPort());
+        }
+        const C2NumbersPortTuning::input *PI[] = { inp2.get(), binp2.get() };
+        for (const auto p : PI) {
+            EXPECT_EQ(12u, p->size());
+            EXPECT_FALSE(p->isVendor());
+            EXPECT_TRUE(p->isFlexible());
+            EXPECT_FALSE(p->isGlobal());
+            EXPECT_FALSE(p->forStream());
+            EXPECT_TRUE(p->forPort());
+        }
+        const C2NumbersPortTuning::output *PO[] = { outp2.get(), boutp2.get() };
+        for (const auto p : PO) {
+            EXPECT_EQ(12u, p->size());
+            EXPECT_FALSE(p->isVendor());
+            EXPECT_TRUE(p->isFlexible());
+            EXPECT_FALSE(p->isGlobal());
+            EXPECT_FALSE(p->forStream());
+            EXPECT_TRUE(p->forPort());
+        }
+
+        // port specific flags & invariables
+        EXPECT_FALSE(outp1->forInput());
+        EXPECT_TRUE(outp1->forOutput());
+
+        EXPECT_TRUE(inp1->forInput());
+        EXPECT_FALSE(inp1->forOutput());
+
+        const C2NumbersPortTuning *P2[] = { outp1.get(), inp1.get() };
+        for (const auto p : P2) {
+            EXPECT_TRUE((bool)(*p));
+            EXPECT_FALSE(!(*p));
+            EXPECT_EQ(100, p->m.mNumbers[0]);
+        }
+        for (const auto p : PO) {
+            EXPECT_TRUE((bool)(*p));
+            EXPECT_FALSE(!(*p));
+
+            EXPECT_FALSE(p->forInput());
+            EXPECT_TRUE(p->forOutput());
+        }
+        for (const auto p : PI) {
+            EXPECT_TRUE((bool)(*p));
+            EXPECT_FALSE(!(*p));
+
+            EXPECT_TRUE(p->forInput());
+            EXPECT_FALSE(p->forOutput());
+        }
+        const C2NumbersPortTuning *P3[] = { boutp1.get() };
+        for (const auto p : P3) {
+            EXPECT_FALSE((bool)(*p));
+            EXPECT_TRUE(!(*p));
+
+            EXPECT_FALSE(p->forInput());
+            EXPECT_FALSE(p->forOutput());
+            EXPECT_EQ(0, p->m.mNumbers[0]);
+        }
+
+        // values
+        EXPECT_EQ(100, inp2->m.mNumbers[0]);
+        EXPECT_EQ(100, outp2->m.mNumbers[0]);
+        EXPECT_EQ(0, binp1->m.mNumbers[0]);
+        EXPECT_EQ(0, binp2->m.mNumbers[0]);
+        EXPECT_EQ(0, boutp1->m.mNumbers[0]);
+        EXPECT_EQ(0, boutp2->m.mNumbers[0]);
+
+        EXPECT_TRUE(*inp1 != *outp1);
+        EXPECT_TRUE(*inp1 == *inp2);
+        EXPECT_TRUE(*outp1 == *outp2);
+        EXPECT_TRUE(*binp1 == *boutp1);
+        EXPECT_TRUE(*binp2 != *boutp2);
+
+        EXPECT_TRUE(*inp1 != *binp1);
+        binp1->m.mNumbers[0] = 100;
+        EXPECT_TRUE(*inp1 != *binp1);
+        binp1->setPort(false /* output */);
+        EXPECT_TRUE((bool)*binp1);
+        EXPECT_FALSE(!*binp1);
+        EXPECT_TRUE(*inp1 == *binp1);
+
+        EXPECT_TRUE(*inp2 != *binp2);
+        binp2->m.mNumbers[0] = 100;
+        EXPECT_TRUE(*inp2 == *binp2);
+
+        binp1->setPort(true /* output */);
+        EXPECT_TRUE(*outp1 == *binp1);
+
+        EXPECT_TRUE(*outp1 != *boutp1);
+        boutp1->m.mNumbers[0] = 100;
+        EXPECT_TRUE(*outp1 != *boutp1);
+        boutp1->setPort(true /* output */);
+        EXPECT_TRUE((bool)*boutp1);
+        EXPECT_FALSE(!*boutp1);
+        EXPECT_TRUE(*outp1 == *boutp1);
+
+        EXPECT_TRUE(*outp2 != *boutp2);
+        boutp2->m.mNumbers[0] = 100;
+        EXPECT_TRUE(*outp2 == *boutp2);
+
+        boutp1->setPort(false /* output */);
+        EXPECT_TRUE(*inp1 == *boutp1);
+
+        // index
+        EXPECT_EQ(C2Param::Type(inp1->type()).baseIndex(), C2NumbersStruct::baseIndex);
+        EXPECT_EQ(C2Param::Type(inp1->type()).paramIndex(), kParamIndexNumbers);
+        EXPECT_EQ(inp1->type(), C2NumbersPortTuning::input::typeIndex);
+        EXPECT_EQ(inp1->stream(), ~0u);
+
+        EXPECT_EQ(C2Param::Type(inp2->type()).baseIndex(), C2NumbersStruct::baseIndex);
+        EXPECT_EQ(C2Param::Type(inp2->type()).paramIndex(), kParamIndexNumbers);
+        EXPECT_EQ(inp2->type(), C2NumbersPortTuning::input::typeIndex);
+        EXPECT_EQ(inp2->stream(), ~0u);
+
+        EXPECT_EQ(C2Param::Type(outp1->type()).baseIndex(), C2NumbersStruct::baseIndex);
+        EXPECT_EQ(C2Param::Type(outp1->type()).paramIndex(), kParamIndexNumbers);
+        EXPECT_EQ(outp1->type(), C2NumbersPortTuning::output::typeIndex);
+        EXPECT_EQ(outp1->stream(), ~0u);
+
+        EXPECT_EQ(C2Param::Type(outp2->type()).baseIndex(), C2NumbersStruct::baseIndex);
+        EXPECT_EQ(C2Param::Type(outp2->type()).paramIndex(), kParamIndexNumbers);
+        EXPECT_EQ(outp2->type(), C2NumbersPortTuning::output::typeIndex);
+        EXPECT_EQ(outp2->stream(), ~0u);
+
+        C2Param::BaseIndex index = C2NumbersPortTuning::input::typeIndex;
+        EXPECT_FALSE(index.isVendor());
+        EXPECT_TRUE(index.isFlexible());
+        EXPECT_EQ(index.baseIndex(), kParamIndexNumbers | C2Param::BaseIndex::_kFlexibleFlag);
+        EXPECT_EQ(index.paramIndex(), kParamIndexNumbers);
+
+        index = C2NumbersPortTuning::output::typeIndex;
+        EXPECT_FALSE(index.isVendor());
+        EXPECT_TRUE(index.isFlexible());
+        EXPECT_EQ(index.baseIndex(), kParamIndexNumbers | C2Param::BaseIndex::_kFlexibleFlag);
+        EXPECT_EQ(index.paramIndex(), kParamIndexNumbers);
+
+        C2Param::Type type = C2NumbersPortTuning::input::typeIndex;
+        EXPECT_FALSE(type.isVendor());
+        EXPECT_TRUE(type.isFlexible());
+        EXPECT_FALSE(type.isGlobal());
+        EXPECT_TRUE(type.forInput());
+        EXPECT_FALSE(type.forOutput());
+        EXPECT_FALSE(type.forStream());
+        EXPECT_TRUE(type.forPort());
+
+        type = C2NumbersPortTuning::output::typeIndex;
+        EXPECT_FALSE(type.isVendor());
+        EXPECT_TRUE(type.isFlexible());
+        EXPECT_FALSE(type.isGlobal());
+        EXPECT_FALSE(type.forInput());
+        EXPECT_TRUE(type.forOutput());
+        EXPECT_FALSE(type.forStream());
+        EXPECT_TRUE(type.forPort());
+
+        EXPECT_EQ(C2NumbersPortTuning::From(nullptr), nullptr);
+        EXPECT_EQ(C2NumbersPortTuning::input::From(nullptr), nullptr);
+        EXPECT_EQ(C2NumbersPortTuning::output::From(nullptr), nullptr);
+        EXPECT_EQ(C2NumbersTuning::From(inp1.get()), nullptr);
+        EXPECT_EQ(C2NumbersTuning::From(inp2.get()), nullptr);
+        EXPECT_EQ(C2NumbersTuning::From(outp1.get()), nullptr);
+        EXPECT_EQ(C2NumbersTuning::From(outp2.get()), nullptr);
+        EXPECT_EQ(C2NumbersPortTuning::From(inp1.get()), inp1.get());
+        EXPECT_EQ(C2NumbersPortTuning::From(inp2.get()), (C2NumbersPortTuning*)inp2.get());
+        EXPECT_EQ(C2NumbersPortTuning::From(outp1.get()), outp1.get());
+        EXPECT_EQ(C2NumbersPortTuning::From(outp2.get()), (C2NumbersPortTuning*)outp2.get());
+        EXPECT_EQ(C2NumbersPortTuning::input::From(inp1.get()), (C2NumbersPortTuning::input*)inp1.get());
+        EXPECT_EQ(C2NumbersPortTuning::input::From(inp2.get()), inp2.get());
+        EXPECT_EQ(C2NumbersPortTuning::input::From(outp1.get()), nullptr);
+        EXPECT_EQ(C2NumbersPortTuning::input::From(outp2.get()), nullptr);
+        EXPECT_EQ(C2NumbersPortTuning::output::From(inp1.get()), nullptr);
+        EXPECT_EQ(C2NumbersPortTuning::output::From(inp2.get()), nullptr);
+        EXPECT_EQ(C2NumbersPortTuning::output::From(outp1.get()), (C2NumbersPortTuning::output*)outp1.get());
+        EXPECT_EQ(C2NumbersPortTuning::output::From(outp2.get()), outp2.get());
+        EXPECT_EQ(C2NumbersStreamTuning::From(inp1.get()), nullptr);
+        EXPECT_EQ(C2NumbersStreamTuning::From(inp2.get()), nullptr);
+        EXPECT_EQ(C2NumbersStreamTuning::From(outp1.get()), nullptr);
+        EXPECT_EQ(C2NumbersStreamTuning::From(outp2.get()), nullptr);
+        EXPECT_EQ(C2NumbersStreamTuning::input::From(inp1.get()), nullptr);
+        EXPECT_EQ(C2NumbersStreamTuning::input::From(inp2.get()), nullptr);
+        EXPECT_EQ(C2NumbersStreamTuning::input::From(outp1.get()), nullptr);
+        EXPECT_EQ(C2NumbersStreamTuning::input::From(outp2.get()), nullptr);
+        EXPECT_EQ(C2NumbersStreamTuning::output::From(inp1.get()), nullptr);
+        EXPECT_EQ(C2NumbersStreamTuning::output::From(inp2.get()), nullptr);
+        EXPECT_EQ(C2NumbersStreamTuning::output::From(outp1.get()), nullptr);
+        EXPECT_EQ(C2NumbersStreamTuning::output::From(outp2.get()), nullptr);
+
+    }
+
+    std::unique_ptr<C2NumbersStreamTuning> outs1_(C2NumbersStreamTuning::alloc_unique(1, true, 1u));
+    outs1_->m.mNumbers[0] = 100;
+    std::unique_ptr<const C2NumbersStreamTuning> outs1 = std::move(outs1_);
+    std::unique_ptr<C2NumbersStreamTuning> ins1_(C2NumbersStreamTuning::alloc_unique(1, false, 1u));
+    ins1_->m.mNumbers[0] = 100;
+    std::unique_ptr<const C2NumbersStreamTuning> ins1 = std::move(ins1_);
+    std::shared_ptr<C2NumbersStreamTuning> bouts1(C2NumbersStreamTuning::alloc_shared(1));
+    std::shared_ptr<C2NumbersStreamTuning> bins1(C2NumbersStreamTuning::alloc_shared(1));
+    std::shared_ptr<C2NumbersStreamTuning> bins3(C2NumbersStreamTuning::alloc_shared(1, false, 1u));
+    bins3->m.mNumbers[0] = 100;
+    std::unique_ptr<C2NumbersStreamTuning::input> ins2_(C2NumbersStreamTuning::input::alloc_unique(1, 1u));
+    ins2_->m.mNumbers[0] = 100;
+    std::unique_ptr<const C2NumbersStreamTuning::input> ins2 = std::move(ins2_);
+    std::shared_ptr<C2NumbersStreamTuning::input> bins2(C2NumbersStreamTuning::input::alloc_shared(1));
+    std::unique_ptr<C2NumbersStreamTuning::output> outs2_(C2NumbersStreamTuning::output::alloc_unique(1, 1u));
+    outs2_->m.mNumbers[0] = 100;
+    std::unique_ptr<const C2NumbersStreamTuning::output> outs2 = std::move(outs2_);
+    std::shared_ptr<C2NumbersStreamTuning::output> bouts2(C2NumbersStreamTuning::output::alloc_shared(1));
+
+    {
+        static_assert(canCallSetPort(*bins3), "should be able to");
+        static_assert(canCallSetPort(*bins1), "should be able to");
+        static_assert(!canCallSetPort(*ins1), "should not be able to (const)");
+        static_assert(!canCallSetPort(*ins2), "should not be able to (const & type)");
+        static_assert(!canCallSetPort(*bins2), "should not be able to (type)");
+
+        // flags & invariables
+        const C2NumbersStreamTuning *S[] = { outs1.get(), ins1.get(), bouts1.get() };
+        for (const auto p : S) {
+            EXPECT_EQ(12u, p->size());
+            EXPECT_FALSE(p->isVendor());
+            EXPECT_TRUE(p->isFlexible());
+            EXPECT_FALSE(p->isGlobal());
+            EXPECT_TRUE(p->forStream());
+            EXPECT_FALSE(p->forPort());
+        }
+        const C2NumbersStreamTuning::input *SI[] = { ins2.get(), bins2.get() };
+        for (const auto p : SI) {
+            EXPECT_EQ(12u, p->size());
+            EXPECT_FALSE(p->isVendor());
+            EXPECT_TRUE(p->isFlexible());
+            EXPECT_FALSE(p->isGlobal());
+            EXPECT_TRUE(p->forStream());
+            EXPECT_FALSE(p->forPort());
+        }
+        const C2NumbersStreamTuning::output *SO[] = { outs2.get(), bouts2.get() };
+        for (const auto p : SO) {
+            EXPECT_EQ(12u, p->size());
+            EXPECT_FALSE(p->isVendor());
+            EXPECT_TRUE(p->isFlexible());
+            EXPECT_FALSE(p->isGlobal());
+            EXPECT_TRUE(p->forStream());
+            EXPECT_FALSE(p->forPort());
+        }
+
+        // port specific flags & invariables
+        EXPECT_FALSE(outs1->forInput());
+        EXPECT_TRUE(outs1->forOutput());
+
+        EXPECT_TRUE(ins1->forInput());
+        EXPECT_FALSE(ins1->forOutput());
+
+        const C2NumbersStreamTuning *S2[] = { outs1.get(), ins1.get() };
+        for (const auto p : S2) {
+            EXPECT_TRUE((bool)(*p));
+            EXPECT_FALSE(!(*p));
+            EXPECT_EQ(100, p->m.mNumbers[0]);
+            EXPECT_EQ(1u, p->stream());
+        }
+        for (const auto p : SO) {
+            EXPECT_TRUE((bool)(*p));
+            EXPECT_FALSE(!(*p));
+
+            EXPECT_FALSE(p->forInput());
+            EXPECT_TRUE(p->forOutput());
+        }
+        for (const auto p : SI) {
+            EXPECT_TRUE((bool)(*p));
+            EXPECT_FALSE(!(*p));
+
+            EXPECT_TRUE(p->forInput());
+            EXPECT_FALSE(p->forOutput());
+        }
+        const C2NumbersStreamTuning *S3[] = { bouts1.get() };
+        for (const auto p : S3) {
+            EXPECT_FALSE((bool)(*p));
+            EXPECT_TRUE(!(*p));
+
+            EXPECT_FALSE(p->forInput());
+            EXPECT_FALSE(p->forOutput());
+            EXPECT_EQ(0, p->m.mNumbers[0]);
+        }
+
+        // values
+        EXPECT_EQ(100, ins2->m.mNumbers[0]);
+        EXPECT_EQ(100, outs2->m.mNumbers[0]);
+        EXPECT_EQ(0, bins1->m.mNumbers[0]);
+        EXPECT_EQ(0, bins2->m.mNumbers[0]);
+        EXPECT_EQ(0, bouts1->m.mNumbers[0]);
+        EXPECT_EQ(0, bouts2->m.mNumbers[0]);
+
+        EXPECT_EQ(1u, ins2->stream());
+        EXPECT_EQ(1u, outs2->stream());
+        EXPECT_EQ(0u, bins1->stream());
+        EXPECT_EQ(0u, bins2->stream());
+        EXPECT_EQ(0u, bouts1->stream());
+        EXPECT_EQ(0u, bouts2->stream());
+
+        EXPECT_TRUE(*ins1 != *outs1);
+        EXPECT_TRUE(*ins1 == *ins2);
+        EXPECT_TRUE(*outs1 == *outs2);
+        EXPECT_TRUE(*bins1 == *bouts1);
+        EXPECT_TRUE(*bins2 != *bouts2);
+
+        EXPECT_TRUE(*ins1 != *bins1);
+        bins1->m.mNumbers[0] = 100;
+        EXPECT_TRUE(*ins1 != *bins1);
+        bins1->setPort(false /* output */);
+        EXPECT_TRUE(*ins1 != *bins1);
+        bins1->setStream(1u);
+        EXPECT_TRUE(*ins1 == *bins1);
+
+        EXPECT_TRUE(*ins2 != *bins2);
+        bins2->m.mNumbers[0] = 100;
+        EXPECT_TRUE(*ins2 != *bins2);
+        bins2->setStream(1u);
+        EXPECT_TRUE(*ins2 == *bins2);
+
+        bins1->setPort(true /* output */);
+        EXPECT_TRUE(*outs1 == *bins1);
+
+        EXPECT_TRUE(*outs1 != *bouts1);
+        bouts1->m.mNumbers[0] = 100;
+        EXPECT_TRUE(*outs1 != *bouts1);
+        bouts1->setPort(true /* output */);
+        EXPECT_TRUE(*outs1 != *bouts1);
+        bouts1->setStream(1u);
+        EXPECT_TRUE(*outs1 == *bouts1);
+
+        EXPECT_TRUE(*outs2 != *bouts2);
+        bouts2->m.mNumbers[0] = 100;
+        EXPECT_TRUE(*outs2 != *bouts2);
+        bouts2->setStream(1u);
+        EXPECT_TRUE(*outs2 == *bouts2);
+
+        bouts1->setPort(false /* output */);
+        EXPECT_TRUE(*ins1 == *bouts1);
+
+        // index
+        EXPECT_EQ(C2Param::Type(ins1->type()).baseIndex(), C2NumbersStruct::baseIndex);
+        EXPECT_EQ(C2Param::Type(ins1->type()).paramIndex(), kParamIndexNumbers);
+        EXPECT_EQ(ins1->type(), C2NumbersStreamTuning::input::typeIndex);
+
+        EXPECT_EQ(C2Param::Type(ins2->type()).baseIndex(), C2NumbersStruct::baseIndex);
+        EXPECT_EQ(C2Param::Type(ins2->type()).paramIndex(), kParamIndexNumbers);
+        EXPECT_EQ(ins2->type(), C2NumbersStreamTuning::input::typeIndex);
+
+        EXPECT_EQ(C2Param::Type(outs1->type()).baseIndex(), C2NumbersStruct::baseIndex);
+        EXPECT_EQ(C2Param::Type(outs1->type()).paramIndex(), kParamIndexNumbers);
+        EXPECT_EQ(outs1->type(), C2NumbersStreamTuning::output::typeIndex);
+
+        EXPECT_EQ(C2Param::Type(outs2->type()).baseIndex(), C2NumbersStruct::baseIndex);
+        EXPECT_EQ(C2Param::Type(outs2->type()).paramIndex(), kParamIndexNumbers);
+        EXPECT_EQ(outs2->type(), C2NumbersStreamTuning::output::typeIndex);
+
+        C2Param::BaseIndex index = C2NumbersStreamTuning::input::typeIndex;
+        EXPECT_FALSE(index.isVendor());
+        EXPECT_TRUE(index.isFlexible());
+        EXPECT_EQ(index.baseIndex(), kParamIndexNumbers | C2Param::BaseIndex::_kFlexibleFlag);
+        EXPECT_EQ(index.paramIndex(), kParamIndexNumbers);
+
+        index = C2NumbersStreamTuning::output::typeIndex;
+        EXPECT_FALSE(index.isVendor());
+        EXPECT_TRUE(index.isFlexible());
+        EXPECT_EQ(index.baseIndex(), kParamIndexNumbers | C2Param::BaseIndex::_kFlexibleFlag);
+        EXPECT_EQ(index.paramIndex(), kParamIndexNumbers);
+
+        C2Param::Type type = C2NumbersStreamTuning::input::typeIndex;
+        EXPECT_FALSE(type.isVendor());
+        EXPECT_TRUE(type.isFlexible());
+        EXPECT_FALSE(type.isGlobal());
+        EXPECT_TRUE(type.forInput());
+        EXPECT_FALSE(type.forOutput());
+        EXPECT_TRUE(type.forStream());
+        EXPECT_FALSE(type.forPort());
+
+        type = C2NumbersStreamTuning::output::typeIndex;
+        EXPECT_FALSE(type.isVendor());
+        EXPECT_TRUE(type.isFlexible());
+        EXPECT_FALSE(type.isGlobal());
+        EXPECT_FALSE(type.forInput());
+        EXPECT_TRUE(type.forOutput());
+        EXPECT_TRUE(type.forStream());
+        EXPECT_FALSE(type.forPort());
+
+        EXPECT_EQ(C2NumbersPortTuning::From(nullptr), nullptr);
+        EXPECT_EQ(C2NumbersPortTuning::input::From(nullptr), nullptr);
+        EXPECT_EQ(C2NumbersPortTuning::output::From(nullptr), nullptr);
+        EXPECT_EQ(C2NumbersTuning::From(ins1.get()), nullptr);
+        EXPECT_EQ(C2NumbersTuning::From(ins2.get()), nullptr);
+        EXPECT_EQ(C2NumbersTuning::From(outs1.get()), nullptr);
+        EXPECT_EQ(C2NumbersTuning::From(outs2.get()), nullptr);
+        EXPECT_EQ(C2NumbersPortTuning::From(ins1.get()), nullptr);
+        EXPECT_EQ(C2NumbersPortTuning::From(ins2.get()), nullptr);
+        EXPECT_EQ(C2NumbersPortTuning::From(outs1.get()), nullptr);
+        EXPECT_EQ(C2NumbersPortTuning::From(outs2.get()), nullptr);
+        EXPECT_EQ(C2NumbersPortTuning::input::From(ins1.get()), nullptr);
+        EXPECT_EQ(C2NumbersPortTuning::input::From(ins2.get()), nullptr);
+        EXPECT_EQ(C2NumbersPortTuning::input::From(outs1.get()), nullptr);
+        EXPECT_EQ(C2NumbersPortTuning::input::From(outs2.get()), nullptr);
+        EXPECT_EQ(C2NumbersPortTuning::output::From(ins1.get()), nullptr);
+        EXPECT_EQ(C2NumbersPortTuning::output::From(ins2.get()), nullptr);
+        EXPECT_EQ(C2NumbersPortTuning::output::From(outs1.get()), nullptr);
+        EXPECT_EQ(C2NumbersPortTuning::output::From(outs2.get()), nullptr);
+        EXPECT_EQ(C2NumbersStreamTuning::From(ins1.get()), ins1.get());
+        EXPECT_EQ(C2NumbersStreamTuning::From(ins2.get()), (C2NumbersStreamTuning*)ins2.get());
+        EXPECT_EQ(C2NumbersStreamTuning::From(outs1.get()), outs1.get());
+        EXPECT_EQ(C2NumbersStreamTuning::From(outs2.get()), (C2NumbersStreamTuning*)outs2.get());
+        EXPECT_EQ(C2NumbersStreamTuning::input::From(ins1.get()), (C2NumbersStreamTuning::input*)ins1.get());
+        EXPECT_EQ(C2NumbersStreamTuning::input::From(ins2.get()), ins2.get());
+        EXPECT_EQ(C2NumbersStreamTuning::input::From(outs1.get()), nullptr);
+        EXPECT_EQ(C2NumbersStreamTuning::input::From(outs2.get()), nullptr);
+        EXPECT_EQ(C2NumbersStreamTuning::output::From(ins1.get()), nullptr);
+        EXPECT_EQ(C2NumbersStreamTuning::output::From(ins2.get()), nullptr);
+        EXPECT_EQ(C2NumbersStreamTuning::output::From(outs1.get()), (C2NumbersStreamTuning::output*)outs1.get());
+        EXPECT_EQ(C2NumbersStreamTuning::output::From(outs2.get()), outs2.get());
+
+    }
+
+    {
+        C2Int32Value int32Value(INT32_MIN);
+        static_assert(std::is_same<decltype(int32Value.mValue), int32_t>::value, "should be int32_t");
+        EXPECT_EQ(INT32_MIN, int32Value.mValue);
+        std::list<const C2FieldDescriptor> fields = int32Value.fieldList;
+        EXPECT_EQ(1u, fields.size());
+        EXPECT_EQ(FD::INT32, fields.cbegin()->type());
+        EXPECT_EQ(1u, fields.cbegin()->length());
+        EXPECT_EQ(C2String("value"), fields.cbegin()->name());
+    }
+
+    {
+        C2Uint32Value uint32Value(UINT32_MAX);
+        static_assert(std::is_same<decltype(uint32Value.mValue), uint32_t>::value, "should be uint32_t");
+        EXPECT_EQ(UINT32_MAX, uint32Value.mValue);
+        std::list<const C2FieldDescriptor> fields = uint32Value.fieldList;
+        EXPECT_EQ(1u, fields.size());
+        EXPECT_EQ(FD::UINT32, fields.cbegin()->type());
+        EXPECT_EQ(1u, fields.cbegin()->length());
+        EXPECT_EQ(C2String("value"), fields.cbegin()->name());
+    }
+
+    {
+        C2Int64Value int64Value(INT64_MIN);
+        static_assert(std::is_same<decltype(int64Value.mValue), int64_t>::value, "should be int64_t");
+        EXPECT_EQ(INT64_MIN, int64Value.mValue);
+        std::list<const C2FieldDescriptor> fields = int64Value.fieldList;
+        EXPECT_EQ(1u, fields.size());
+        EXPECT_EQ(FD::INT64, fields.cbegin()->type());
+        EXPECT_EQ(1u, fields.cbegin()->length());
+        EXPECT_EQ(C2String("value"), fields.cbegin()->name());
+    }
+
+    {
+        C2Uint64Value uint64Value(UINT64_MAX);
+        static_assert(std::is_same<decltype(uint64Value.mValue), uint64_t>::value, "should be uint64_t");
+        EXPECT_EQ(UINT64_MAX, uint64Value.mValue);
+        std::list<const C2FieldDescriptor> fields = uint64Value.fieldList;
+        EXPECT_EQ(1u, fields.size());
+        EXPECT_EQ(FD::UINT64, fields.cbegin()->type());
+        EXPECT_EQ(1u, fields.cbegin()->length());
+        EXPECT_EQ(C2String("value"), fields.cbegin()->name());
+    }
+
+    {
+        C2FloatValue floatValue(123.4f);
+        static_assert(std::is_same<decltype(floatValue.mValue), float>::value, "should be float");
+        EXPECT_EQ(123.4f, floatValue.mValue);
+        std::list<const C2FieldDescriptor> fields = floatValue.fieldList;
+        EXPECT_EQ(1u, fields.size());
+        EXPECT_EQ(FD::FLOAT, fields.cbegin()->type());
+        EXPECT_EQ(1u, fields.cbegin()->length());
+        EXPECT_EQ(C2String("value"), fields.cbegin()->name());
+    }
+
+    {
+        uint8_t initValue[] = "ABCD";
+        typedef C2GlobalParam<C2Setting, C2BlobValue, 0> BlobSetting;
+        std::unique_ptr<BlobSetting> blobValue = BlobSetting::alloc_unique(6, C2ConstMemoryBlock<uint8_t>(initValue));
+        static_assert(std::is_same<decltype(blobValue->m.mValue), uint8_t[]>::value, "should be uint8_t[]");
+        EXPECT_EQ(0, memcmp(blobValue->m.mValue, "ABCD\0", 6));
+        EXPECT_EQ(6u, blobValue->flexCount());
+        std::list<const C2FieldDescriptor> fields = blobValue->fieldList;
+        EXPECT_EQ(1u, fields.size());
+        EXPECT_EQ(FD::BLOB, fields.cbegin()->type());
+        EXPECT_EQ(0u, fields.cbegin()->length());
+        EXPECT_EQ(C2String("value"), fields.cbegin()->name());
+
+        blobValue = BlobSetting::alloc_unique(3, C2ConstMemoryBlock<uint8_t>(initValue));
+        EXPECT_EQ(0, memcmp(blobValue->m.mValue, "ABC", 3));
+        EXPECT_EQ(3u, blobValue->flexCount());
+    }
+
+    {
+        constexpr char initValue[] = "ABCD";
+        typedef C2GlobalParam<C2Setting, C2StringValue, 0> StringSetting;
+        std::unique_ptr<StringSetting> stringValue = StringSetting::alloc_unique(6, C2ConstMemoryBlock<char>(initValue));
+        stringValue = StringSetting::alloc_unique(6, initValue);
+        static_assert(std::is_same<decltype(stringValue->m.mValue), char[]>::value, "should be char[]");
+        EXPECT_EQ(0, memcmp(stringValue->m.mValue, "ABCD\0", 6));
+        EXPECT_EQ(6u, stringValue->flexCount());
+        std::list<const C2FieldDescriptor> fields = stringValue->fieldList;
+        EXPECT_EQ(1u, fields.size());
+        EXPECT_EQ(FD::STRING, fields.cbegin()->type());
+        EXPECT_EQ(0u, fields.cbegin()->length());
+        EXPECT_EQ(C2String("value"), fields.cbegin()->name());
+
+        stringValue = StringSetting::alloc_unique(3, C2ConstMemoryBlock<char>(initValue));
+        EXPECT_EQ(0, memcmp(stringValue->m.mValue, "AB", 3));
+        EXPECT_EQ(3u, stringValue->flexCount());
+
+        stringValue = StringSetting::alloc_unique(11, "initValue");
+        EXPECT_EQ(0, memcmp(stringValue->m.mValue, "initValue\0", 11));
+        EXPECT_EQ(11u, stringValue->flexCount());
+
+        stringValue = StringSetting::alloc_unique(initValue);
+        EXPECT_EQ(0, memcmp(stringValue->m.mValue, "ABCD", 5));
+        EXPECT_EQ(5u, stringValue->flexCount());
+
+        stringValue = StringSetting::alloc_unique({ 'A', 'B', 'C', 'D' });
+        EXPECT_EQ(0, memcmp(stringValue->m.mValue, "ABC", 4));
+        EXPECT_EQ(4u, stringValue->flexCount());
+    }
+
+    {
+        uint32_t videoWidth[] = { 12u, C2NumbersStreamTuning::output::typeIndex, 100 };
+        C2Param *p1 = C2Param::From(videoWidth, sizeof(videoWidth));
+        EXPECT_NE(nullptr, p1);
+        EXPECT_EQ(12u, p1->size());
+        EXPECT_EQ(C2NumbersStreamTuning::output::typeIndex, p1->type());
+
+        C2NumbersStreamTuning::output *vst = C2NumbersStreamTuning::output::From(p1);
+        EXPECT_NE(nullptr, vst);
+        if (vst) {
+            EXPECT_EQ(1u, vst->flexCount());
+            EXPECT_EQ(100, vst->m.mNumbers[0]);
+        }
+
+        p1 = C2Param::From(videoWidth, sizeof(videoWidth) + 2);
+        EXPECT_EQ(nullptr, p1);
+
+        p1 = C2Param::From(videoWidth, sizeof(videoWidth) - 2);
+        EXPECT_EQ(nullptr, p1);
+
+        p1 = C2Param::From(videoWidth, 3);
+        EXPECT_EQ(nullptr, p1);
+
+        p1 = C2Param::From(videoWidth, 0);
+        EXPECT_EQ(nullptr, p1);
+    }
+
+    {
+        uint32_t videoWidth[] = { 16u, C2NumbersPortTuning::input::typeIndex, 101, 102 };
+
+        C2Param *p1 = C2Param::From(videoWidth, sizeof(videoWidth));
+        EXPECT_NE(nullptr, p1);
+        EXPECT_EQ(16u, p1->size());
+        EXPECT_EQ(C2NumbersPortTuning::input::typeIndex, p1->type());
+
+        C2NumbersPortTuning::input *vpt = C2NumbersPortTuning::input::From(p1);
+        EXPECT_NE(nullptr, vpt);
+        if (vpt) {
+            EXPECT_EQ(2u, vpt->flexCount());
+            EXPECT_EQ(101, vpt->m.mNumbers[0]);
+            EXPECT_EQ(102, vpt->m.mNumbers[1]);
+        }
+
+        p1 = C2Param::From(videoWidth, sizeof(videoWidth) + 2);
+        EXPECT_EQ(nullptr, p1);
+
+        p1 = C2Param::From(videoWidth, sizeof(videoWidth) - 2);
+        EXPECT_EQ(nullptr, p1);
+
+        p1 = C2Param::From(videoWidth, 3);
+        EXPECT_EQ(nullptr, p1);
+
+        p1 = C2Param::From(videoWidth, 0);
+        EXPECT_EQ(nullptr, p1);
+    }
+}
+
+// ***********************
+
+}
+
+#include <util/C2ParamUtils.h>
+#include <C2Config.h>
+#include <C2Component.h>
+#include <unordered_map>
+
+namespace android {
+
+C2ENUM(
+    MetadataType, int32_t,
+    kInvalid = -1,
+    kNone = 0,
+    kGralloc,
+    kNativeHandle,
+    kANativeWindow,
+    kCamera,
+)
+
+enum {
+    kParamIndexVideoConfig = 0x1234,
+};
+
+struct C2VideoConfigStruct {
+    int32_t mWidth;
+    uint32_t mHeight;
+    MetadataType mMetadataType;
+    int32_t mSupportedFormats[];
+
+    C2VideoConfigStruct() {}
+
+    DEFINE_AND_DESCRIBE_FLEX_C2STRUCT(VideoConfig, mSupportedFormats)
+    C2FIELD(mWidth, "width")
+    C2FIELD(mHeight, "height")
+    C2FIELD(mMetadataType, "metadata-type")
+    C2FIELD(mSupportedFormats, "formats")
+};
+
+typedef C2PortParam<C2Tuning, C2VideoConfigStruct> C2VideoConfigPortTuning;
+
+class MyReflector : public C2ParamReflector {
+private:
+    std::unique_ptr<C2VideoConfigPortTuning::input> inputVideoConfigTuning;
+    std::unique_ptr<C2VideoConfigPortTuning::output> outputVideoConfigTuning;
+
+public:
+    void describeSupportedValues() {
+        C2TypedFieldSupportedValues<int32_t> supportedWidths(16, 1920, 8);
+        C2FieldSupportedValues supportedWidths2(16, 1920, 8);
+
+
+        std::list<C2FieldSupportedValues> supported;
+        //supported.emplace_push(inputVideoConfigTuning->mNumber, range(16, 1920, 8));
+        //supported.emplace_push(inputVideoConfigTuning->mHeight, range(16, 1088, 8));
+        //supported.emplace_push(inputVideoConfigTuning->mMetadataType, all_enums);
+        //supported.emplace_push(inputVideoConfigTuning->mSupportedFormats, { 0, 1, 5, 7 });
+    }
+
+    virtual std::unique_ptr<android::C2StructDescriptor> describe(C2Param::BaseIndex paramType) {
+        switch (paramType.baseIndex()) {
+        case C2VideoConfigPortTuning::baseIndex:
+            return std::unique_ptr<C2StructDescriptor>(new C2StructDescriptor{
+                paramType.baseIndex(),
+                C2VideoConfigPortTuning::fieldList,
+            });
+        }
+        return nullptr;
+    }
+};
+
+class MyComponentInstance : public C2ComponentInterface {
+public:
+    virtual C2String getName() const {
+        /// \todo this seems too specific
+        return "sample.interface";
+    };
+
+    virtual node_id getId() const {
+        /// \todo how are these shared?
+        return 0;
+    }
+
+    virtual status_t commit_sm(
+            const std::vector<C2Param* const> &params,
+            std::vector<std::unique_ptr<C2SettingResult>>* const failures) {
+        (void)params;
+        (void)failures;
+        return C2_UNSUPPORTED;
+    }
+
+    virtual status_t config_nb(
+            const std::vector<C2Param* const> &params,
+            std::vector<std::unique_ptr<C2SettingResult>>* const failures) {
+        (void)params;
+        (void)failures;
+        return C2_UNSUPPORTED;
+    }
+
+    virtual status_t createTunnel_sm(node_id targetComponent) {
+        (void)targetComponent;
+        return C2_UNSUPPORTED;
+    }
+
+    virtual status_t query_nb(
+            const std::vector<C2Param* const> &stackParams,
+            const std::vector<C2Param::Index> &heapParamIndices,
+            std::vector<std::unique_ptr<C2Param>>* const heapParams) const {
+        for (C2Param* const param : stackParams) {
+            if (!*param) { // param is already invalid - remember it
+                continue;
+            }
+
+            // note: this does not handle stream params (should use index...)
+            if (!mMyParams.count(param->type())) {
+                continue; // not my param
+            }
+
+            C2Param & myParam = mMyParams.find(param->type())->second;
+            if (myParam.size() != param->size()) { // incorrect size
+                param->invalidate();
+                continue;
+            }
+
+            param->updateFrom(myParam);
+        }
+
+        for (const C2Param::Index index : heapParamIndices) {
+            if (mMyParams.count(index)) {
+                C2Param & myParam = mMyParams.find(index)->second;
+                std::unique_ptr<C2Param> paramCopy(C2Param::From(&myParam, myParam.size()));
+                heapParams->push_back(std::move(paramCopy));
+            }
+        }
+
+        return C2_OK;
+    }
+
+    std::unordered_map<uint32_t, C2Param &> mMyParams;
+
+    C2ComponentDomainInfo mDomainInfo;
+
+    MyComponentInstance() {
+        mMyParams.insert({mDomainInfo.type(), mDomainInfo});
+    }
+
+    virtual status_t releaseTunnel_sm(node_id targetComponent) {
+        (void)targetComponent;
+        return C2_UNSUPPORTED;
+    }
+
+    class MyParamReflector : public C2ParamReflector {
+        const MyComponentInstance *instance;
+
+    public:
+        MyParamReflector(const MyComponentInstance *i) : instance(i) { }
+
+        virtual std::unique_ptr<C2StructDescriptor> describe(C2Param::BaseIndex paramIndex) {
+            switch (paramIndex.baseIndex()) {
+            case decltype(instance->mDomainInfo)::baseIndex:
+            default:
+                return std::unique_ptr<C2StructDescriptor>(new C2StructDescriptor{
+                    instance->mDomainInfo.type(),
+                    decltype(instance->mDomainInfo)::fieldList,
+                });
+            }
+            return nullptr;
+        }
+    };
+
+    virtual status_t getSupportedValues(
+            const std::vector<const C2ParamField> fields,
+            std::vector<C2FieldSupportedValues>* const values) const {
+        for (const C2ParamField &field : fields) {
+            if (field == C2ParamField(&mDomainInfo, &C2ComponentDomainInfo::mValue)) {
+                values->push_back(C2FieldSupportedValues(
+                    false /* flag */,
+                    &mDomainInfo.mValue
+                    //,
+                    //{(int32_t)C2DomainVideo}
+                ));
+            }
+        }
+        return C2_OK;
+    }
+
+    virtual std::shared_ptr<C2ParamReflector> getParamReflector() const {
+        return std::shared_ptr<C2ParamReflector>(new MyParamReflector(this));
+    }
+
+    virtual status_t getSupportedParams(std::vector<std::shared_ptr<C2ParamDescriptor>> * const params) const {
+        params->push_back(std::make_shared<C2ParamDescriptor>(
+                true /* required */, "_domain", &mDomainInfo));
+        return C2_OK;
+    }
+
+    status_t getSupportedParams2(std::vector<std::shared_ptr<C2ParamDescriptor>> * const params) {
+        params->push_back(std::shared_ptr<C2ParamDescriptor>(
+                new C2ParamDescriptor(true /* required */, "_domain", &mDomainInfo)));
+        return C2_OK;
+    }
+
+};
+
+template<typename E, bool S=std::is_enum<E>::value>
+struct getter {
+    int32_t get(const C2FieldSupportedValues::Primitive &p, int32_t*) {
+        return p.i32;
+    }
+    int64_t get(const C2FieldSupportedValues::Primitive &p, int64_t*) {
+        return p.i64;
+    }
+    uint32_t get(const C2FieldSupportedValues::Primitive &p, uint32_t*) {
+        return p.u32;
+    }
+    uint64_t get(const C2FieldSupportedValues::Primitive &p, uint64_t*) {
+        return p.u64;
+    }
+    float get(const C2FieldSupportedValues::Primitive &p, float*) {
+        return p.fp;
+    }
+};
+
+template<typename E>
+struct getter<E, true> {
+     typename std::underlying_type<E>::type get(const C2FieldSupportedValues::Primitive &p, E*) {
+         using u=typename std::underlying_type<E>::type;
+         return getter<u>().get(p, (u*)0);
+     }
+};
+
+template<typename T, bool E=std::is_enum<T>::value>
+struct lax_underlying_type {
+    typedef typename std::underlying_type<T>::type type;
+};
+
+template<typename T>
+struct lax_underlying_type<T, false> {
+    typedef T type;
+};
+
+template<typename E>
+typename lax_underlying_type<E>::type get(
+        const C2FieldSupportedValues::Primitive &p, E*) {
+    return getter<E>().get(p, (E*)0);
+}
+
+template<typename T>
+void dumpFSV(const C2FieldSupportedValues &sv, T*t) {
+    using namespace std;
+    cout << (std::is_enum<T>::value ? (std::is_signed<typename std::underlying_type<T>::type>::value ? "i" : "u")
+             : std::is_integral<T>::value ? std::is_signed<T>::value ? "i" : "u" : "f")
+        << (8 * sizeof(T));
+    if (sv.type == sv.RANGE) {
+        cout << ".range(" << get(sv.range.min, t);
+        if (get(sv.range.step, t) != std::is_integral<T>::value) {
+            cout << ":" << get(sv.range.step, t);
+        }
+        if (get(sv.range.nom, t) != 1 || get(sv.range.denom, t) != 1) {
+            cout << ":" << get(sv.range.nom, t) << "/" << get(sv.range.denom, t);
+        }
+        cout << get(sv.range.max, t) << ")";
+    }
+    if (sv.values.size()) {
+        cout << (sv.type == sv.FLAGS ? ".flags(" : ".list(");
+        const char *sep = "";
+        for (const C2FieldSupportedValues::Primitive &p : sv.values) {
+            cout << sep << get(p, t);
+            sep = ",";
+        }
+        cout << ")";
+    }
+    cout << endl;
+}
+
+void dumpType(C2Param::Type type) {
+    using namespace std;
+    cout << (type.isVendor() ? "Vendor" : "C2");
+    if (type.forInput()) {
+        cout << "Input";
+    } else if (type.forOutput()) {
+        cout << "Output";
+    } else if (type.forPort() && !type.forStream()) {
+        cout << "Port";
+    }
+    if (type.forStream()) {
+        cout << "Stream";
+    }
+
+    if (type.isFlexible()) {
+        cout << "Flex";
+    }
+
+    cout << type.paramIndex();
+
+    switch (type.kind()) {
+    case C2Param::INFO: cout << "Info"; break;
+    case C2Param::SETTING: cout << "Setting"; break;
+    case C2Param::TUNING: cout << "Tuning"; break;
+    case C2Param::STRUCT: cout << "Struct"; break;
+    default: cout << "Kind" << (int32_t)type.kind(); break;
+    }
+}
+
+void dumpType(C2Param::BaseIndex type) {
+    using namespace std;
+    cout << (type.isVendor() ? "Vendor" : "C2");
+    if (type.isFlexible()) {
+        cout << "Flex";
+    }
+
+    cout << type.paramIndex() << "Struct";
+}
+
+void dumpType(FD::Type type) {
+    using namespace std;
+    switch (type) {
+    case FD::BLOB: cout << "blob "; break;
+    case FD::FLOAT: cout << "float "; break;
+    case FD::INT32: cout << "int32_t "; break;
+    case FD::INT64: cout << "int64_t "; break;
+    case FD::UINT32: cout << "uint32_t "; break;
+    case FD::UINT64: cout << "uint64_t "; break;
+    case FD::STRING: cout << "char "; break;
+    default:
+        cout << "struct ";
+        dumpType((C2Param::Type)type);
+        break;
+    }
+}
+
+void dumpStruct(const C2StructDescriptor &sd) {
+    using namespace std;
+    cout << "struct ";
+    dumpType(sd.baseIndex());
+    cout << " {" << endl;
+    //C2FieldDescriptor &f;
+    for (const C2FieldDescriptor &f : sd) {
+        PrintTo(f, &cout);
+        cout << endl;
+
+        if (f.namedValues().size()) {
+            cout << ".named(";
+            const char *sep = "";
+            for (const FD::named_value_type &p : f.namedValues()) {
+                cout << sep << p.first << "=";
+                switch (f.type()) {
+                case C2Value::INT32: cout << get(p.second, (int32_t *)0); break;
+                case C2Value::INT64: cout << get(p.second, (int64_t *)0); break;
+                case C2Value::UINT32: cout << get(p.second, (uint32_t *)0); break;
+                case C2Value::UINT64: cout << get(p.second, (uint64_t *)0); break;
+                case C2Value::FLOAT: cout << get(p.second, (float *)0); break;
+                default: cout << "???"; break;
+                }
+                sep = ",";
+            }
+            cout << ")";
+        }
+    }
+
+    cout << "};" << endl;
+}
+
+void dumpDesc(const C2ParamDescriptor &pd) {
+    using namespace std;
+    if (pd.isRequired()) {
+        cout << "required ";
+    }
+    if (pd.isPersistent()) {
+        cout << "persistent ";
+    }
+    cout << "struct ";
+    dumpType(pd.type());
+    cout << " " << pd.name() << ";" << endl;
+}
+
+TEST_F(C2ParamTest, ReflectorTest) {
+    C2ComponentDomainInfo domainInfo;
+    std::shared_ptr<C2ComponentInterface> comp(new MyComponentInstance);
+    std::vector<C2FieldSupportedValues> values;
+
+    std::unique_ptr<C2StructDescriptor> desc{
+        comp->getParamReflector()->describe(C2ComponentDomainInfo::indexFlags)};
+    dumpStruct(*desc);
+
+    EXPECT_EQ(
+        C2_OK,
+        comp->getSupportedValues(
+            { C2ParamField(&domainInfo, &C2ComponentDomainInfo::mValue) },
+            &values)
+    );
+
+    for (const C2FieldSupportedValues &sv : values) {
+        dumpFSV(sv, &domainInfo.mValue);
+    }
+}
+
+C2ENUM(Enum1, uint32_t,
+    Enum1Value1,
+    Enum1Value2,
+    Enum1Value4 = Enum1Value2 + 2,
+);
+
+C2ENUM_CUSTOM_PREFIX(Enum2, uint32_t, "Enum",
+    Enum2Value1,
+    Enum2Value2,
+    Enum2Value4 = Enum1Value2 + 2,
+);
+
+C2ENUM_CUSTOM_NAMES(Enum3, uint8_t,
+    ({ { "value1", Enum3Value1 },
+       { "value2", Enum3Value2 },
+       { "value4", Enum3Value4 },
+       { "invalid", Invalid } }),
+    Enum3Value1,
+    Enum3Value2,
+    Enum3Value4 = Enum3Value2 + 2,
+    Invalid,
+);
+
+TEST_F(C2ParamTest, EnumUtilsTest) {
+    std::vector<std::pair<C2String, Enum3>> pairs ( { { "value1", Enum3Value1 },
+      { "value2", Enum3Value2 },
+      { "value4", Enum3Value4 },
+      { "invalid", Invalid } });
+    Enum3 e3;
+    FD::namedValuesFor(e3);
+}
+
+TEST_F(C2ParamTest, ParamUtilsTest) {
+    // upper case
+    EXPECT_EQ("yes", C2ParamUtils::camelCaseToDashed("YES"));
+    EXPECT_EQ("no", C2ParamUtils::camelCaseToDashed("NO"));
+    EXPECT_EQ("yes-no", C2ParamUtils::camelCaseToDashed("YES_NO"));
+    EXPECT_EQ("yes-no", C2ParamUtils::camelCaseToDashed("YES__NO"));
+    EXPECT_EQ("a2dp", C2ParamUtils::camelCaseToDashed("A2DP"));
+    EXPECT_EQ("mp2-ts", C2ParamUtils::camelCaseToDashed("MP2_TS"));
+    EXPECT_EQ("block-2d", C2ParamUtils::camelCaseToDashed("BLOCK_2D"));
+    EXPECT_EQ("mpeg-2-ts", C2ParamUtils::camelCaseToDashed("MPEG_2_TS"));
+    EXPECT_EQ("_hidden-value", C2ParamUtils::camelCaseToDashed("_HIDDEN_VALUE"));
+    EXPECT_EQ("__hidden-value2", C2ParamUtils::camelCaseToDashed("__HIDDEN_VALUE2"));
+    EXPECT_EQ("__hidden-value-2", C2ParamUtils::camelCaseToDashed("__HIDDEN_VALUE_2"));
+
+    // camel case
+    EXPECT_EQ("yes", C2ParamUtils::camelCaseToDashed("Yes"));
+    EXPECT_EQ("no", C2ParamUtils::camelCaseToDashed("No"));
+    EXPECT_EQ("yes-no", C2ParamUtils::camelCaseToDashed("YesNo"));
+    EXPECT_EQ("yes-no", C2ParamUtils::camelCaseToDashed("Yes_No"));
+    EXPECT_EQ("mp2-ts", C2ParamUtils::camelCaseToDashed("MP2Ts"));
+    EXPECT_EQ("block-2d", C2ParamUtils::camelCaseToDashed("Block2D"));
+    EXPECT_EQ("mpeg-2-ts", C2ParamUtils::camelCaseToDashed("Mpeg2ts"));
+    EXPECT_EQ("_hidden-value", C2ParamUtils::camelCaseToDashed("_HiddenValue"));
+    EXPECT_EQ("__hidden-value-2", C2ParamUtils::camelCaseToDashed("__HiddenValue2"));
+
+    // mixed case
+    EXPECT_EQ("mp2t-s", C2ParamUtils::camelCaseToDashed("MP2T_s"));
+    EXPECT_EQ("block-2d", C2ParamUtils::camelCaseToDashed("Block_2D"));
+    EXPECT_EQ("block-2-d", C2ParamUtils::camelCaseToDashed("Block2_D"));
+    EXPECT_EQ("mpeg-2-ts", C2ParamUtils::camelCaseToDashed("Mpeg_2ts"));
+    EXPECT_EQ("mpeg-2-ts", C2ParamUtils::camelCaseToDashed("Mpeg_2_TS"));
+    EXPECT_EQ("_hidden-value", C2ParamUtils::camelCaseToDashed("_Hidden__VALUE"));
+    EXPECT_EQ("__hidden-value-2", C2ParamUtils::camelCaseToDashed("__HiddenValue_2"));
+    EXPECT_EQ("_2", C2ParamUtils::camelCaseToDashed("_2"));
+    EXPECT_EQ("__23", C2ParamUtils::camelCaseToDashed("__23"));
+}
+
+TEST_F(C2ParamTest, C2ValueTest) {
+    C2Value val;
+    int32_t i32 = -32;
+    int64_t i64 = -64;
+    uint32_t u32 = 32;
+    uint64_t u64 = 64;
+    float fp = 1.5f;
+
+    EXPECT_EQ(C2Value::NO_INIT, val.type());
+    EXPECT_EQ(false, val.get(&i32));
+    EXPECT_EQ(-32, i32);
+    EXPECT_EQ(false, val.get(&i64));
+    EXPECT_EQ(-64, i64);
+    EXPECT_EQ(false, val.get(&u32));
+    EXPECT_EQ(32u, u32);
+    EXPECT_EQ(false, val.get(&u64));
+    EXPECT_EQ(64u, u64);
+    EXPECT_EQ(false, val.get(&fp));
+    EXPECT_EQ(1.5f, fp);
+
+    val = int32_t(-3216);
+    EXPECT_EQ(C2Value::INT32, val.type());
+    EXPECT_EQ(true, val.get(&i32));
+    EXPECT_EQ(-3216, i32);
+    EXPECT_EQ(false, val.get(&i64));
+    EXPECT_EQ(-64, i64);
+    EXPECT_EQ(false, val.get(&u32));
+    EXPECT_EQ(32u, u32);
+    EXPECT_EQ(false, val.get(&u64));
+    EXPECT_EQ(64u, u64);
+    EXPECT_EQ(false, val.get(&fp));
+    EXPECT_EQ(1.5f, fp);
+
+    val = uint32_t(3216);
+    EXPECT_EQ(C2Value::UINT32, val.type());
+    EXPECT_EQ(false, val.get(&i32));
+    EXPECT_EQ(-3216, i32);
+    EXPECT_EQ(false, val.get(&i64));
+    EXPECT_EQ(-64, i64);
+    EXPECT_EQ(true, val.get(&u32));
+    EXPECT_EQ(3216u, u32);
+    EXPECT_EQ(false, val.get(&u64));
+    EXPECT_EQ(64u, u64);
+    EXPECT_EQ(false, val.get(&fp));
+    EXPECT_EQ(1.5f, fp);
+
+    val = int64_t(-6432);
+    EXPECT_EQ(C2Value::INT64, val.type());
+    EXPECT_EQ(false, val.get(&i32));
+    EXPECT_EQ(-3216, i32);
+    EXPECT_EQ(true, val.get(&i64));
+    EXPECT_EQ(-6432, i64);
+    EXPECT_EQ(false, val.get(&u32));
+    EXPECT_EQ(3216u, u32);
+    EXPECT_EQ(false, val.get(&u64));
+    EXPECT_EQ(64u, u64);
+    EXPECT_EQ(false, val.get(&fp));
+    EXPECT_EQ(1.5f, fp);
+
+    val = uint64_t(6432);
+    EXPECT_EQ(C2Value::UINT64, val.type());
+    EXPECT_EQ(false, val.get(&i32));
+    EXPECT_EQ(-3216, i32);
+    EXPECT_EQ(false, val.get(&i64));
+    EXPECT_EQ(-6432, i64);
+    EXPECT_EQ(false, val.get(&u32));
+    EXPECT_EQ(3216u, u32);
+    EXPECT_EQ(true, val.get(&u64));
+    EXPECT_EQ(6432u, u64);
+    EXPECT_EQ(false, val.get(&fp));
+    EXPECT_EQ(1.5f, fp);
+
+    val = 15.25f;
+    EXPECT_EQ(C2Value::FLOAT, val.type());
+    EXPECT_EQ(false, val.get(&i32));
+    EXPECT_EQ(-3216, i32);
+    EXPECT_EQ(false, val.get(&i64));
+    EXPECT_EQ(-6432, i64);
+    EXPECT_EQ(false, val.get(&u32));
+    EXPECT_EQ(3216u, u32);
+    EXPECT_EQ(false, val.get(&u64));
+    EXPECT_EQ(6432u, u64);
+    EXPECT_EQ(true, val.get(&fp));
+    EXPECT_EQ(15.25f, fp);
+}
+
+} // namespace android
diff --git a/media/libstagefright/codec2/tests/C2_test.cpp b/media/libstagefright/codec2/tests/C2_test.cpp
new file mode 100644
index 0000000..92a3d91
--- /dev/null
+++ b/media/libstagefright/codec2/tests/C2_test.cpp
@@ -0,0 +1,78 @@
+/*
+ * Copyright 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "C2_test"
+
+#include <gtest/gtest.h>
+
+#include <C2.h>
+
+namespace android {
+
+/* ======================================= STATIC TESTS ======================================= */
+
+template<int N>
+struct c2_const_checker
+{
+    inline constexpr static int num() { return N; }
+};
+
+constexpr auto min_i32_i32 = c2_min(int32_t(1), int32_t(2));
+static_assert(std::is_same<decltype(min_i32_i32), const int32_t>::value, "should be int32_t");
+constexpr auto min_i32_i64 = c2_min(int32_t(3), int64_t(2));
+static_assert(std::is_same<decltype(min_i32_i64), const int64_t>::value, "should be int64_t");
+constexpr auto min_i8_i32 = c2_min(int8_t(0xff), int32_t(0xffffffff));
+static_assert(std::is_same<decltype(min_i8_i32), const int32_t>::value, "should be int32_t");
+
+static_assert(c2_const_checker<min_i32_i32>::num() == 1, "should be 1");
+static_assert(c2_const_checker<min_i32_i64>::num() == 2, "should be 2");
+static_assert(c2_const_checker<min_i8_i32>::num() == 0xffffffff, "should be 0xffffffff");
+
+constexpr auto min_u32_u32 = c2_min(uint32_t(1), uint32_t(2));
+static_assert(std::is_same<decltype(min_u32_u32), const uint32_t>::value, "should be uint32_t");
+constexpr auto min_u32_u64 = c2_min(uint32_t(3), uint64_t(2));
+static_assert(std::is_same<decltype(min_u32_u64), const uint32_t>::value, "should be uint32_t");
+constexpr auto min_u32_u8 = c2_min(uint32_t(0xffffffff), uint8_t(0xff));
+static_assert(std::is_same<decltype(min_u32_u8), const uint8_t>::value, "should be uint8_t");
+
+static_assert(c2_const_checker<min_u32_u32>::num() == 1, "should be 1");
+static_assert(c2_const_checker<min_u32_u64>::num() == 2, "should be 2");
+static_assert(c2_const_checker<min_u32_u8>::num() == 0xff, "should be 0xff");
+
+constexpr auto max_i32_i32 = c2_max(int32_t(1), int32_t(2));
+static_assert(std::is_same<decltype(max_i32_i32), const int32_t>::value, "should be int32_t");
+constexpr auto max_i32_i64 = c2_max(int32_t(3), int64_t(2));
+static_assert(std::is_same<decltype(max_i32_i64), const int64_t>::value, "should be int64_t");
+constexpr auto max_i8_i32 = c2_max(int8_t(0xff), int32_t(0xffffffff));
+static_assert(std::is_same<decltype(max_i8_i32), const int32_t>::value, "should be int32_t");
+
+static_assert(c2_const_checker<max_i32_i32>::num() == 2, "should be 2");
+static_assert(c2_const_checker<max_i32_i64>::num() == 3, "should be 3");
+static_assert(c2_const_checker<max_i8_i32>::num() == 0xffffffff, "should be 0xffffffff");
+
+constexpr auto max_u32_u32 = c2_max(uint32_t(1), uint32_t(2));
+static_assert(std::is_same<decltype(max_u32_u32), const uint32_t>::value, "should be uint32_t");
+constexpr auto max_u32_u64 = c2_max(uint32_t(3), uint64_t(2));
+static_assert(std::is_same<decltype(max_u32_u64), const uint64_t>::value, "should be uint64_t");
+constexpr auto max_u32_u8 = c2_max(uint32_t(0x7fffffff), uint8_t(0xff));
+static_assert(std::is_same<decltype(max_u32_u8), const uint32_t>::value, "should be uint32_t");
+
+static_assert(c2_const_checker<max_u32_u32>::num() == 2, "should be 2");
+static_assert(c2_const_checker<max_u32_u64>::num() == 3, "should be 3");
+static_assert(c2_const_checker<max_u32_u8>::num() == 0x7fffffff, "should be 0x7fffffff");
+
+} // namespace android
diff --git a/media/libstagefright/codec2/tests/vndk/C2UtilTest.cpp b/media/libstagefright/codec2/tests/vndk/C2UtilTest.cpp
new file mode 100644
index 0000000..7a1374b
--- /dev/null
+++ b/media/libstagefright/codec2/tests/vndk/C2UtilTest.cpp
@@ -0,0 +1,40 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <util/_C2MacroUtils.h>
+
+/** \file
+ * Tests for vndk/util.
+ */
+
+/* --------------------------------------- _C2MacroUtils --------------------------------------- */
+
+static_assert(0 == _C2_ARGC(), "should be 0");
+static_assert(1 == _C2_ARGC(1), "should be 1");
+static_assert(2 == _C2_ARGC(1, 2), "should be 2");
+static_assert(64 == _C2_ARGC(
+        1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25,
+        26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48,
+        49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64), "should be 64");
+
+static_assert(0 == _C2_ARGC(,), "should be 0");
+static_assert(1 == _C2_ARGC(1,), "should be 1");
+static_assert(2 == _C2_ARGC(1, 2,), "should be 2");
+static_assert(64 == _C2_ARGC(
+        1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25,
+        26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48,
+        49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64,), "should be 64");
+
diff --git a/media/libstagefright/codec2/vndk/include/util/C2ParamUtils.h b/media/libstagefright/codec2/vndk/include/util/C2ParamUtils.h
new file mode 100644
index 0000000..edae303
--- /dev/null
+++ b/media/libstagefright/codec2/vndk/include/util/C2ParamUtils.h
@@ -0,0 +1,302 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef C2UTILS_PARAM_UTILS_H_
+#define C2UTILS_PARAM_UTILS_H_
+
+#include <C2Param.h>
+#include <util/_C2MacroUtils.h>
+
+#include <iostream>
+
+/** \file
+ * Utilities for parameter handling to be used by Codec2 implementations.
+ */
+
+namespace android {
+
+/// \cond INTERNAL
+
+/* ---------------------------- UTILITIES FOR ENUMERATION REFLECTION ---------------------------- */
+
+/**
+ * Utility class that allows ignoring enum value assignment (e.g. both '(_C2EnumConst)kValue = x'
+ * and '(_C2EnumConst)kValue' will eval to kValue.
+ */
+template<typename T>
+class _C2EnumConst {
+public:
+    // implicit conversion from T
+    inline _C2EnumConst(T value) : _mValue(value) {}
+    // implicit conversion to T
+    inline operator T() { return _mValue; }
+    // implicit conversion to C2Value::Primitive
+    inline operator C2Value::Primitive() { return (T)_mValue; }
+    // ignore assignment and return T here to avoid implicit conversion to T later
+    inline T &operator =(T value __unused) { return _mValue; }
+private:
+    T _mValue;
+};
+
+/// mapper to get name of enum
+/// \note this will contain any initialization, which we will remove when converting to lower-case
+#define _C2_GET_ENUM_NAME(x, y) #x
+/// mapper to get value of enum
+#define _C2_GET_ENUM_VALUE(x, type) (_C2EnumConst<type>)x
+
+/// \endcond
+
+#define DEFINE_C2_ENUM_VALUE_AUTO_HELPER(name, type, prefix, ...) \
+template<> C2FieldDescriptor::named_values_type C2FieldDescriptor::namedValuesFor(const name &r __unused) { \
+    return C2ParamUtils::sanitizeEnumValues( \
+            std::vector<C2Value::Primitive> { _C2_MAP(_C2_GET_ENUM_VALUE, type, __VA_ARGS__) }, \
+            { _C2_MAP(_C2_GET_ENUM_NAME, type, __VA_ARGS__) }, \
+            prefix); \
+}
+
+#define DEFINE_C2_ENUM_VALUE_CUSTOM_HELPER(name, type, names, ...) \
+template<> C2FieldDescriptor::named_values_type C2FieldDescriptor::namedValuesFor(const name &r __unused) { \
+    return C2ParamUtils::customEnumValues( \
+            std::vector<std::pair<C2StringLiteral, name>> names); \
+}
+
+
+class C2ParamUtils {
+private:
+    static size_t countLeadingUnderscores(C2StringLiteral a) {
+        size_t i = 0;
+        while (a[i] == '_') {
+            ++i;
+        }
+        return i;
+    }
+
+    static size_t countMatching(C2StringLiteral a, const C2String &b) {
+        for (size_t i = 0; i < b.size(); ++i) {
+            if (!a[i] || a[i] != b[i]) {
+                return i;
+            }
+        }
+        return b.size();
+    }
+
+    // ABCDef => abc-def
+    // ABCD2ef => abcd2-ef // 0
+    // ABCD2Ef => ancd2-ef // -1
+    // AbcDef => abc-def // -1
+    // Abc2Def => abc-2def
+    // Abc2def => abc-2-def
+    // _Yo => _yo
+    // _yo => _yo
+    // C2_yo => c2-yo
+    // C2__yo => c2-yo
+
+    static C2String camelCaseToDashed(C2String name) {
+        enum {
+            kNone = '.',
+            kLower = 'a',
+            kUpper = 'A',
+            kDigit = '1',
+            kDash = '-',
+            kUnderscore = '_',
+        } type = kNone;
+        size_t word_start = 0;
+        for (size_t ix = 0; ix < name.size(); ++ix) {
+            /* std::cout << name.substr(0, word_start) << "|"
+                    << name.substr(word_start, ix - word_start) << "["
+                    << name.substr(ix, 1) << "]" << name.substr(ix + 1)
+                    << ": " << (char)type << std::endl; */
+            if (isupper(name[ix])) {
+                if (type == kLower) {
+                    name.insert(ix++, 1, '-');
+                    word_start = ix;
+                }
+                name[ix] = tolower(name[ix]);
+                type = kUpper;
+            } else if (islower(name[ix])) {
+                if (type == kDigit && ix > 0) {
+                    name.insert(ix++, 1, '-');
+                    word_start = ix;
+                } else if (type == kUpper && ix > word_start + 1) {
+                    name.insert(ix++ - 1, 1, '-');
+                    word_start = ix - 1;
+                }
+                type = kLower;
+            } else if (isdigit(name[ix])) {
+                if (type == kLower) {
+                    name.insert(ix++, 1, '-');
+                    word_start = ix;
+                }
+                type = kDigit;
+            } else if (name[ix] == '_') {
+                if (type == kDash) {
+                    name.erase(ix--, 1);
+                } else if (type != kNone && type != kUnderscore) {
+                    name[ix] = '-';
+                    type = kDash;
+                    word_start = ix + 1;
+                } else {
+                    type = kUnderscore;
+                    word_start = ix + 1;
+                }
+            } else {
+                name.resize(ix);
+            }
+        }
+        // std::cout << "=> " << name << std::endl;
+        return name;
+    }
+
+    static std::vector<C2String> sanitizeEnumValueNames(
+            const std::vector<C2StringLiteral> names,
+            C2StringLiteral _prefix = NULL) {
+        std::vector<C2String> sanitizedNames;
+        C2String prefix;
+        size_t extraUnderscores = 0;
+        bool first = true;
+        if (_prefix) {
+            extraUnderscores = countLeadingUnderscores(_prefix);
+            prefix = _prefix + extraUnderscores;
+            first = false;
+            // std::cout << "prefix:" << prefix << ", underscores:" << extraUnderscores << std::endl;
+        }
+
+        // calculate prefix and minimum leading underscores
+        for (C2StringLiteral s : names) {
+            // std::cout << s << std::endl;
+            size_t underscores = countLeadingUnderscores(s);
+            if (first) {
+                extraUnderscores = underscores;
+                prefix = s + underscores;
+                first = false;
+            } else {
+                size_t matching = countMatching(
+                    s + underscores,
+                    prefix);
+                prefix.resize(matching);
+                extraUnderscores = std::min(underscores, extraUnderscores);
+            }
+            // std::cout << "prefix:" << prefix << ", underscores:" << extraUnderscores << std::endl;
+            if (prefix.size() == 0 && extraUnderscores == 0) {
+                break;
+            }
+        }
+
+        // we swallow the first underscore after upper case prefixes
+        bool upperCasePrefix = true;
+        for (size_t i = 0; i < prefix.size(); ++i) {
+            if (islower(prefix[i])) {
+                upperCasePrefix = false;
+                break;
+            }
+        }
+
+        for (C2StringLiteral s : names) {
+            size_t underscores = countLeadingUnderscores(s);
+            C2String sanitized = C2String(s, underscores - extraUnderscores);
+            sanitized.append(s + prefix.size() + underscores +
+                        (upperCasePrefix && s[prefix.size() + underscores] == '_'));
+            sanitizedNames.push_back(camelCaseToDashed(sanitized));
+        }
+
+        for (C2String s : sanitizedNames) {
+            std::cout << s << std::endl;
+        }
+
+        return sanitizedNames;
+    }
+
+    friend class C2ParamTest_ParamUtilsTest_Test;
+
+public:
+    static std::vector<C2String> getEnumValuesFromString(C2StringLiteral value) {
+        std::vector<C2String> foundNames;
+        size_t pos = 0, len = strlen(value);
+        do {
+            size_t endPos = strcspn(value + pos, " ,=") + pos;
+            if (endPos > pos) {
+                foundNames.emplace_back(value + pos, endPos - pos);
+            }
+            if (value[endPos] && value[endPos] != ',') {
+                endPos += strcspn(value + endPos, ",");
+            }
+            pos = strspn(value + endPos, " ,") + endPos;
+        } while (pos < len);
+        return foundNames;
+    }
+
+    template<typename T>
+    static C2FieldDescriptor::named_values_type sanitizeEnumValues(
+            std::vector<T> values,
+            std::vector<C2StringLiteral> names,
+            C2StringLiteral prefix = NULL) {
+        C2FieldDescriptor::named_values_type namedValues;
+        std::vector<C2String> sanitizedNames = sanitizeEnumValueNames(names, prefix);
+        for (size_t i = 0; i < values.size() && i < sanitizedNames.size(); ++i) {
+            namedValues.emplace_back(sanitizedNames[i], values[i]);
+        }
+        return namedValues;
+    }
+
+    template<typename E>
+    static C2FieldDescriptor::named_values_type customEnumValues(
+            std::vector<std::pair<C2StringLiteral, E>> items) {
+        C2FieldDescriptor::named_values_type namedValues;
+        for (auto &item : items) {
+            namedValues.emplace_back(item.first, item.second);
+        }
+        return namedValues;
+    }
+};
+
+/* ---------------------------- UTILITIES FOR PARAMETER REFLECTION ---------------------------- */
+
+/* ======================== UTILITY TEMPLATES FOR PARAMETER REFLECTION ======================== */
+
+#if 1
+template<typename... Params>
+class C2_HIDE _C2Tuple { };
+
+C2_HIDE
+void addC2Params(std::list<const C2FieldDescriptor> &, _C2Tuple<> *) {
+}
+
+template<typename T, typename... Params>
+C2_HIDE
+void addC2Params(std::list<const C2FieldDescriptor> &fields, _C2Tuple<T, Params...> *)
+{
+    //C2Param::index_t index = T::baseIndex;
+    //(void)index;
+    fields.insert(fields.end(), T::fieldList);
+    addC2Params(fields, (_C2Tuple<Params...> *)nullptr);
+}
+
+template<typename... Params>
+C2_HIDE
+std::list<const C2FieldDescriptor> describeC2Params() {
+    std::list<const C2FieldDescriptor> fields;
+    addC2Params(fields, (_C2Tuple<Params...> *)nullptr);
+    return fields;
+}
+
+#endif
+
+/* ---------------------------- UTILITIES FOR ENUMERATION REFLECTION ---------------------------- */
+
+}  // namespace android
+
+#endif  // C2UTILS_PARAM_UTILS_H_
+
diff --git a/media/libstagefright/codec2/vndk/include/util/_C2MacroUtils.h b/media/libstagefright/codec2/vndk/include/util/_C2MacroUtils.h
new file mode 100644
index 0000000..04e9ba5
--- /dev/null
+++ b/media/libstagefright/codec2/vndk/include/util/_C2MacroUtils.h
@@ -0,0 +1,162 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef C2UTILS_MACRO_UTILS_H_
+#define C2UTILS_MACRO_UTILS_H_
+
+/** \file
+ * Macro utilities for the utils library used by Codec2 implementations.
+ */
+
+/// \if 0
+
+/* --------------------------------- VARIABLE ARGUMENT COUNTING --------------------------------- */
+
+// remove empty arguments - _C2_ARG() expands to '', while _C2_ARG(x) expands to ', x'
+// _C2_ARGn(...) does the same for n arguments
+#define _C2_ARG(...) , ##__VA_ARGS__
+#define _C2_ARG2(_1, _2) _C2_ARG(_1) _C2_ARG(_2)
+#define _C2_ARG4(_1, _2, _3, _4) _C2_ARG2(_1, _2) _C2_ARG2(_3, _4)
+#define _C2_ARG8(_1, _2, _3, _4, _5, _6, _7, _8) _C2_ARG4(_1, _2, _3, _4) _C2_ARG4(_5, _6, _7, _8)
+#define _C2_ARG16(_1, _2, _3, _4, _5, _6, _7, _8, _9, _10, _11, _12, _13, _14, _15, _16) \
+        _C2_ARG8(_1, _2, _3, _4, _5, _6, _7, _8) _C2_ARG8(_9, _10, _11, _12, _13, _14, _15, _16)
+
+// return the 65th argument
+#define _C2_ARGC_3(_, _0, _1, _2, _3, _4, _5, _6, _7, _8, _9, _10, _11, _12, _13, _14, _15, _16, \
+        _17, _18, _19, _20, _21, _22, _23, _24, _25, _26, _27, _28, _29, _30, _31, _32, \
+        _33, _34, _35, _36, _37, _38, _39, _40, _41, _42, _43, _44, _45, _46, _47, _48, \
+        _49, _50, _51, _52, _53, _54, _55, _56, _57, _58, _59, _60, _61, _62, _63, _64, ...) _64
+
+/// \endif
+
+/**
+ * Returns the number of arguments.
+ */
+// We do this by prepending 1 and appending 65 designed values such that the 65th element
+// will be the number of arguments.
+#define _C2_ARGC(...) _C2_ARGC_1(0, ##__VA_ARGS__, \
+        64, 63, 62, 61, 60, 59, 58, 57, 56, 55, 54, 53, 52, 51, 50, 49, 48, 47, 46, 45, 44, 43, \
+        42, 41, 40, 39, 38, 37, 36, 35, 34, 33, 32, 31, 30, 29, 28, 27, 26, 25, 24, 23, 22, 21, \
+        20, 19, 18, 17, 16, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0)
+
+/// \if 0
+
+// step 1. remove empty arguments - this is needed to allow trailing comma in enum definitions
+// (NOTE: we don't know which argument will have this trailing comma so we have to try all)
+#define _C2_ARGC_1(_, _0, _1, _2, _3, _4, _5, _6, _7, _8, _9, _10, _11, _12, _13, _14, _15, _16, \
+        _17, _18, _19, _20, _21, _22, _23, _24, _25, _26, _27, _28, _29, _30, _31, _32, \
+        _33, _34, _35, _36, _37, _38, _39, _40, _41, _42, _43, _44, _45, _46, _47, _48, \
+        _49, _50, _51, _52, _53, _54, _55, _56, _57, _58, _59, _60, _61, _62, _63, _64, ...) \
+    _C2_ARGC_2(_ _C2_ARG(_0) \
+    _C2_ARG16(_1, _2, _3, _4, _5, _6, _7, _8, _9, _10, _11, _12, _13, _14, _15, _16) \
+    _C2_ARG16(_17, _18, _19, _20, _21, _22, _23, _24, _25, _26, _27, _28, _29, _30, _31, _32) \
+    _C2_ARG16(_33, _34, _35, _36, _37, _38, _39, _40, _41, _42, _43, _44, _45, _46, _47, _48) \
+    _C2_ARG16(_49, _50, _51, _52, _53, _54, _55, _56, _57, _58, _59, _60, _61, _62, _63, _64), \
+    ##__VA_ARGS__)
+
+// step 2. this is needed as removed arguments cannot be passed directly as empty into a macro
+#define _C2_ARGC_2(...) _C2_ARGC_3(__VA_ARGS__)
+
+/// \endif
+
+/* -------------------------------- VARIABLE ARGUMENT CONVERSION -------------------------------- */
+
+/// \if 0
+
+// macros that convert _1, _2, _3, ... to fn(_1, arg), fn(_2, arg), fn(_3, arg), ...
+#define _C2_MAP_64(fn, arg, head, ...) fn(head, arg), _C2_MAP_63(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_63(fn, arg, head, ...) fn(head, arg), _C2_MAP_62(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_62(fn, arg, head, ...) fn(head, arg), _C2_MAP_61(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_61(fn, arg, head, ...) fn(head, arg), _C2_MAP_60(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_60(fn, arg, head, ...) fn(head, arg), _C2_MAP_59(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_59(fn, arg, head, ...) fn(head, arg), _C2_MAP_58(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_58(fn, arg, head, ...) fn(head, arg), _C2_MAP_57(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_57(fn, arg, head, ...) fn(head, arg), _C2_MAP_56(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_56(fn, arg, head, ...) fn(head, arg), _C2_MAP_55(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_55(fn, arg, head, ...) fn(head, arg), _C2_MAP_54(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_54(fn, arg, head, ...) fn(head, arg), _C2_MAP_53(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_53(fn, arg, head, ...) fn(head, arg), _C2_MAP_52(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_52(fn, arg, head, ...) fn(head, arg), _C2_MAP_51(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_51(fn, arg, head, ...) fn(head, arg), _C2_MAP_50(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_50(fn, arg, head, ...) fn(head, arg), _C2_MAP_49(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_49(fn, arg, head, ...) fn(head, arg), _C2_MAP_48(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_48(fn, arg, head, ...) fn(head, arg), _C2_MAP_47(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_47(fn, arg, head, ...) fn(head, arg), _C2_MAP_46(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_46(fn, arg, head, ...) fn(head, arg), _C2_MAP_45(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_45(fn, arg, head, ...) fn(head, arg), _C2_MAP_44(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_44(fn, arg, head, ...) fn(head, arg), _C2_MAP_43(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_43(fn, arg, head, ...) fn(head, arg), _C2_MAP_42(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_42(fn, arg, head, ...) fn(head, arg), _C2_MAP_41(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_41(fn, arg, head, ...) fn(head, arg), _C2_MAP_40(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_40(fn, arg, head, ...) fn(head, arg), _C2_MAP_39(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_39(fn, arg, head, ...) fn(head, arg), _C2_MAP_38(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_38(fn, arg, head, ...) fn(head, arg), _C2_MAP_37(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_37(fn, arg, head, ...) fn(head, arg), _C2_MAP_36(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_36(fn, arg, head, ...) fn(head, arg), _C2_MAP_35(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_35(fn, arg, head, ...) fn(head, arg), _C2_MAP_34(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_34(fn, arg, head, ...) fn(head, arg), _C2_MAP_33(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_33(fn, arg, head, ...) fn(head, arg), _C2_MAP_32(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_32(fn, arg, head, ...) fn(head, arg), _C2_MAP_31(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_31(fn, arg, head, ...) fn(head, arg), _C2_MAP_30(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_30(fn, arg, head, ...) fn(head, arg), _C2_MAP_29(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_29(fn, arg, head, ...) fn(head, arg), _C2_MAP_28(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_28(fn, arg, head, ...) fn(head, arg), _C2_MAP_27(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_27(fn, arg, head, ...) fn(head, arg), _C2_MAP_26(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_26(fn, arg, head, ...) fn(head, arg), _C2_MAP_25(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_25(fn, arg, head, ...) fn(head, arg), _C2_MAP_24(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_24(fn, arg, head, ...) fn(head, arg), _C2_MAP_23(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_23(fn, arg, head, ...) fn(head, arg), _C2_MAP_22(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_22(fn, arg, head, ...) fn(head, arg), _C2_MAP_21(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_21(fn, arg, head, ...) fn(head, arg), _C2_MAP_20(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_20(fn, arg, head, ...) fn(head, arg), _C2_MAP_19(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_19(fn, arg, head, ...) fn(head, arg), _C2_MAP_18(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_18(fn, arg, head, ...) fn(head, arg), _C2_MAP_17(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_17(fn, arg, head, ...) fn(head, arg), _C2_MAP_16(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_16(fn, arg, head, ...) fn(head, arg), _C2_MAP_15(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_15(fn, arg, head, ...) fn(head, arg), _C2_MAP_14(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_14(fn, arg, head, ...) fn(head, arg), _C2_MAP_13(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_13(fn, arg, head, ...) fn(head, arg), _C2_MAP_12(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_12(fn, arg, head, ...) fn(head, arg), _C2_MAP_11(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_11(fn, arg, head, ...) fn(head, arg), _C2_MAP_10(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_10(fn, arg, head, ...) fn(head, arg), _C2_MAP_9(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_9(fn, arg, head, ...) fn(head, arg), _C2_MAP_8(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_8(fn, arg, head, ...) fn(head, arg), _C2_MAP_7(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_7(fn, arg, head, ...) fn(head, arg), _C2_MAP_6(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_6(fn, arg, head, ...) fn(head, arg), _C2_MAP_5(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_5(fn, arg, head, ...) fn(head, arg), _C2_MAP_4(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_4(fn, arg, head, ...) fn(head, arg), _C2_MAP_3(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_3(fn, arg, head, ...) fn(head, arg), _C2_MAP_2(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_2(fn, arg, head, ...) fn(head, arg), _C2_MAP_1(fn, arg, ##__VA_ARGS__)
+#define _C2_MAP_1(fn, arg, head, ...) fn(head, arg)
+
+/// \endif
+
+/**
+ * Maps each argument using another macro x -> fn(x, arg)
+ */
+// use wrapper to call the proper mapper based on the number of arguments
+#define _C2_MAP(fn, arg, ...) _C2_MAP__(_C2_ARGC(__VA_ARGS__), fn, arg, ##__VA_ARGS__)
+
+/// \if 0
+
+// evaluate _n so it becomes a number
+#define _C2_MAP__(_n, fn, arg, ...) _C2_MAP_(_n, fn, arg, __VA_ARGS__)
+// call the proper mapper
+#define _C2_MAP_(_n, fn, arg, ...) _C2_MAP_##_n (fn, arg, __VA_ARGS__)
+
+/// \endif
+
+#endif  // C2UTILS_MACRO_UTILS_H_
diff --git a/media/libstagefright/codecs/aacdec/Android.mk b/media/libstagefright/codecs/aacdec/Android.mk
index 84ea708..29c0f33 100644
--- a/media/libstagefright/codecs/aacdec/Android.mk
+++ b/media/libstagefright/codecs/aacdec/Android.mk
@@ -19,8 +19,8 @@
 LOCAL_CFLAGS :=
 
 LOCAL_CFLAGS += -Werror
-LOCAL_CLANG := true
-LOCAL_SANITIZE := signed-integer-overflow unsigned-integer-overflow
+LOCAL_SANITIZE := signed-integer-overflow unsigned-integer-overflow cfi
+LOCAL_SANITIZE_DIAG := cfi
 
 LOCAL_STATIC_LIBRARIES := libFraunhoferAAC
 
diff --git a/media/libstagefright/codecs/aacdec/SoftAAC2.cpp b/media/libstagefright/codecs/aacdec/SoftAAC2.cpp
index 1c5e3c6..9fbdb72 100644
--- a/media/libstagefright/codecs/aacdec/SoftAAC2.cpp
+++ b/media/libstagefright/codecs/aacdec/SoftAAC2.cpp
@@ -62,6 +62,7 @@
     OMX_AUDIO_AACObjectHE_PS,
     OMX_AUDIO_AACObjectLD,
     OMX_AUDIO_AACObjectELD,
+    OMX_AUDIO_AACObjectER_Scalable,
 };
 
 SoftAAC2::SoftAAC2(
diff --git a/media/libstagefright/codecs/aacenc/Android.mk b/media/libstagefright/codecs/aacenc/Android.mk
index 71c374b..527687b 100644
--- a/media/libstagefright/codecs/aacenc/Android.mk
+++ b/media/libstagefright/codecs/aacenc/Android.mk
@@ -78,7 +78,6 @@
 	$(LOCAL_PATH)/basic_op
 
 LOCAL_CFLAGS += -Werror
-LOCAL_CLANG := true
 LOCAL_SANITIZE := signed-integer-overflow unsigned-integer-overflow
 
 include $(BUILD_STATIC_LIBRARY)
@@ -106,8 +105,8 @@
   LOCAL_CFLAGS :=
 
   LOCAL_CFLAGS += -Werror
-  LOCAL_CLANG := true
-  LOCAL_SANITIZE := signed-integer-overflow unsigned-integer-overflow
+  LOCAL_SANITIZE := signed-integer-overflow unsigned-integer-overflow cfi
+  LOCAL_SANITIZE_DIAG := cfi
 
   LOCAL_STATIC_LIBRARIES := libFraunhoferAAC
 
@@ -132,8 +131,8 @@
   LOCAL_CFLAGS := -DOSCL_IMPORT_REF=
 
   LOCAL_CFLAGS += -Werror
-  LOCAL_CLANG := true
-  LOCAL_SANITIZE := signed-integer-overflow unsigned-integer-overflow
+  LOCAL_SANITIZE := signed-integer-overflow unsigned-integer-overflow cfi
+  LOCAL_SANITIZE_DIAG := cfi
 
   LOCAL_STATIC_LIBRARIES := \
           libstagefright_aacenc
diff --git a/media/libstagefright/codecs/amrnb/common/Android.mk b/media/libstagefright/codecs/amrnb/common/Android.mk
index 15220a4..0bb5724 100644
--- a/media/libstagefright/codecs/amrnb/common/Android.mk
+++ b/media/libstagefright/codecs/amrnb/common/Android.mk
@@ -68,7 +68,6 @@
         -D"OSCL_UNUSED_ARG(x)=(void)(x)" -DOSCL_IMPORT_REF= -DOSCL_EXPORT_REF=
 
 LOCAL_CFLAGS += -Werror
-LOCAL_CLANG := true
 #addressing b/25409744
 #LOCAL_SANITIZE := signed-integer-overflow unsigned-integer-overflow
 
diff --git a/media/libstagefright/codecs/amrnb/dec/Android.mk b/media/libstagefright/codecs/amrnb/dec/Android.mk
index 7967ec3..3959b80 100644
--- a/media/libstagefright/codecs/amrnb/dec/Android.mk
+++ b/media/libstagefright/codecs/amrnb/dec/Android.mk
@@ -48,7 +48,6 @@
         -D"OSCL_UNUSED_ARG(x)=(void)(x)" -DOSCL_IMPORT_REF=
 
 LOCAL_CFLAGS += -Werror
-LOCAL_CLANG := true
 #LOCAL_SANITIZE := signed-integer-overflow
 
 LOCAL_MODULE := libstagefright_amrnbdec
@@ -73,7 +72,6 @@
 LOCAL_CFLAGS := -DOSCL_IMPORT_REF=
 
 LOCAL_CFLAGS += -Werror
-LOCAL_CLANG := true
 #LOCAL_SANITIZE := signed-integer-overflow
 
 LOCAL_STATIC_LIBRARIES := \
@@ -104,7 +102,6 @@
 LOCAL_SHARED_LIBRARIES := \
         libstagefright_amrnb_common libaudioutils liblog
 
-LOCAL_CLANG := true
 #LOCAL_SANITIZE := signed-integer-overflow
 
 LOCAL_MODULE := libstagefright_amrnbdec_test
diff --git a/media/libstagefright/codecs/amrnb/enc/Android.mk b/media/libstagefright/codecs/amrnb/enc/Android.mk
index f8a41af..af1efb9 100644
--- a/media/libstagefright/codecs/amrnb/enc/Android.mk
+++ b/media/libstagefright/codecs/amrnb/enc/Android.mk
@@ -70,7 +70,6 @@
         -D"OSCL_UNUSED_ARG(x)=(void)(x)"
 
 LOCAL_CFLAGS += -Werror
-LOCAL_CLANG := true
 #addressing b/25409744
 #LOCAL_SANITIZE := signed-integer-overflow
 
@@ -94,7 +93,6 @@
         $(LOCAL_PATH)/../common
 
 LOCAL_CFLAGS += -Werror
-LOCAL_CLANG := true
 #addressing b/25409744
 #LOCAL_SANITIZE := signed-integer-overflow
 
@@ -127,7 +125,6 @@
 LOCAL_SHARED_LIBRARIES := \
     libstagefright_amrnb_common
 
-LOCAL_CLANG := true
 #addressing b/25409744
 #LOCAL_SANITIZE := signed-integer-overflow
 
diff --git a/media/libstagefright/codecs/amrwb/Android.mk b/media/libstagefright/codecs/amrwb/Android.mk
index 1649c4a..73a1751 100644
--- a/media/libstagefright/codecs/amrwb/Android.mk
+++ b/media/libstagefright/codecs/amrwb/Android.mk
@@ -51,7 +51,6 @@
         -D"OSCL_UNUSED_ARG(x)=(void)(x)" -DOSCL_IMPORT_REF=
 
 LOCAL_CFLAGS += -Werror
-LOCAL_CLANG := true
 LOCAL_SANITIZE := signed-integer-overflow
 
 LOCAL_MODULE := libstagefright_amrwbdec
@@ -74,7 +73,6 @@
 LOCAL_SHARED_LIBRARIES := \
         libaudioutils
 
-LOCAL_CLANG := true
 LOCAL_SANITIZE := signed-integer-overflow
 
 LOCAL_MODULE := libstagefright_amrwbdec_test
diff --git a/media/libstagefright/codecs/amrwbenc/Android.mk b/media/libstagefright/codecs/amrwbenc/Android.mk
index 026006e..262f6c8 100644
--- a/media/libstagefright/codecs/amrwbenc/Android.mk
+++ b/media/libstagefright/codecs/amrwbenc/Android.mk
@@ -102,7 +102,6 @@
 	$(LOCAL_PATH)/inc
 
 LOCAL_CFLAGS += -Werror
-LOCAL_CLANG := true
 #LOCAL_SANITIZE := signed-integer-overflow
 
 include $(BUILD_STATIC_LIBRARY)
@@ -120,8 +119,8 @@
 	frameworks/native/include/media/openmax
 
 LOCAL_CFLAGS += -Werror
-LOCAL_CLANG := true
-LOCAL_SANITIZE := signed-integer-overflow
+LOCAL_SANITIZE := signed-integer-overflow cfi
+LOCAL_SANITIZE_DIAG := cfi
 
 LOCAL_STATIC_LIBRARIES := \
         libstagefright_amrwbenc
diff --git a/media/libstagefright/codecs/amrwbenc/SampleCode/AMRWB_E_SAMPLE.c b/media/libstagefright/codecs/amrwbenc/SampleCode/AMRWB_E_SAMPLE.c
index 0cb0097..7c094f3 100644
--- a/media/libstagefright/codecs/amrwbenc/SampleCode/AMRWB_E_SAMPLE.c
+++ b/media/libstagefright/codecs/amrwbenc/SampleCode/AMRWB_E_SAMPLE.c
@@ -90,7 +90,7 @@
 	VO_AUDIO_CODECAPI       AudioAPI;
 	VO_MEM_OPERATOR         moper;
 	VO_CODEC_INIT_USERDATA  useData;
-	VO_HANDLE               hCodec;
+	VO_HANDLE               hCodec = NULL;
 	VO_CODECBUFFER          inData;
 	VO_CODECBUFFER          outData;
 	VO_AUDIO_OUTPUTINFO     outFormat;
@@ -211,7 +211,7 @@
 			if(returnCode == 0)
 			{
 				framenum++;
-				printf(" Frames processed: %hd\r", framenum);
+				printf(" Frames processed: %d\r", framenum);
 				if(framenum == 1)
 				{
 					fwrite(OutputBuf, 1, outData.Length + size1, fdst);
diff --git a/media/libstagefright/codecs/avc/common/Android.mk b/media/libstagefright/codecs/avc/common/Android.mk
index ed0f8ca..9959554 100644
--- a/media/libstagefright/codecs/avc/common/Android.mk
+++ b/media/libstagefright/codecs/avc/common/Android.mk
@@ -17,7 +17,7 @@
  	$(LOCAL_PATH)/include
 
 LOCAL_CFLAGS += -Werror
-LOCAL_CLANG := true
-LOCAL_SANITIZE := signed-integer-overflow
+LOCAL_SANITIZE := signed-integer-overflow cfi
+LOCAL_SANITIZE_DIAG := cfi
 
 include $(BUILD_SHARED_LIBRARY)
diff --git a/media/libstagefright/codecs/avc/enc/Android.mk b/media/libstagefright/codecs/avc/enc/Android.mk
index 511c9f2..e451f30 100644
--- a/media/libstagefright/codecs/avc/enc/Android.mk
+++ b/media/libstagefright/codecs/avc/enc/Android.mk
@@ -31,7 +31,6 @@
     -DOSCL_IMPORT_REF= -D"OSCL_UNUSED_ARG(x)=(void)(x)" -DOSCL_EXPORT_REF=
 
 LOCAL_CFLAGS += -Werror
-LOCAL_CLANG := true
 LOCAL_SANITIZE := signed-integer-overflow
 
 include $(BUILD_STATIC_LIBRARY)
@@ -60,7 +59,7 @@
         libstagefright_avcenc
 
 LOCAL_SHARED_LIBRARIES := \
-        libstagefright \
+        libmedia \
         libstagefright_avc_common \
         libstagefright_foundation \
         libstagefright_omx \
@@ -72,8 +71,8 @@
 LOCAL_MODULE_TAGS := optional
 
 LOCAL_CFLAGS += -Werror
-LOCAL_CLANG := true
-LOCAL_SANITIZE := signed-integer-overflow
+LOCAL_SANITIZE := signed-integer-overflow cfi
+LOCAL_SANITIZE_DIAG := cfi
 
 include $(BUILD_SHARED_LIBRARY)
 
@@ -92,7 +91,6 @@
 
 LOCAL_CFLAGS := \
     -DOSCL_IMPORT_REF= -DOSCL_UNUSED_ARG= -DOSCL_EXPORT_REF=
-LOCAL_CLANG := true
 LOCAL_SANITIZE := signed-integer-overflow
 
 LOCAL_STATIC_LIBRARIES := \
diff --git a/media/libstagefright/codecs/avcdec/Android.mk b/media/libstagefright/codecs/avcdec/Android.mk
index ef0dbfd..8c894fd 100644
--- a/media/libstagefright/codecs/avcdec/Android.mk
+++ b/media/libstagefright/codecs/avcdec/Android.mk
@@ -14,14 +14,15 @@
 LOCAL_C_INCLUDES += $(TOP)/frameworks/av/media/libstagefright/include
 LOCAL_C_INCLUDES += $(TOP)/frameworks/native/include/media/openmax
 
-LOCAL_SHARED_LIBRARIES  := libstagefright
+LOCAL_SHARED_LIBRARIES  := libmedia
 LOCAL_SHARED_LIBRARIES  += libstagefright_omx
 LOCAL_SHARED_LIBRARIES  += libstagefright_foundation
 LOCAL_SHARED_LIBRARIES  += libutils
 LOCAL_SHARED_LIBRARIES  += liblog
 
-LOCAL_CLANG := true
-LOCAL_SANITIZE := signed-integer-overflow
+LOCAL_SANITIZE := signed-integer-overflow cfi
+
+LOCAL_SANITIZE_DIAG := cfi
 
 LOCAL_LDFLAGS := -Wl,-Bsymbolic
 
diff --git a/media/libstagefright/codecs/avcdec/SoftAVCDec.cpp b/media/libstagefright/codecs/avcdec/SoftAVCDec.cpp
index 8694c73..78436f6 100644
--- a/media/libstagefright/codecs/avcdec/SoftAVCDec.cpp
+++ b/media/libstagefright/codecs/avcdec/SoftAVCDec.cpp
@@ -27,11 +27,10 @@
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/MediaDefs.h>
 #include <OMX_VideoExt.h>
+#include <inttypes.h>
 
 namespace android {
 
-#define PRINT_TIME  ALOGV
-
 #define componentName                   "video_decoder.avc"
 #define codingType                      OMX_VIDEO_CodingAVC
 #define CODEC_MIME_TYPE                 MEDIA_MIMETYPE_VIDEO_AVC
@@ -49,58 +48,10 @@
         (IVD_CONTROL_API_COMMAND_TYPE_T)IH264D_CMD_CTL_SET_NUM_CORES
 
 static const CodecProfileLevel kProfileLevels[] = {
-    { OMX_VIDEO_AVCProfileBaseline, OMX_VIDEO_AVCLevel1  },
-    { OMX_VIDEO_AVCProfileBaseline, OMX_VIDEO_AVCLevel1b },
-    { OMX_VIDEO_AVCProfileBaseline, OMX_VIDEO_AVCLevel11 },
-    { OMX_VIDEO_AVCProfileBaseline, OMX_VIDEO_AVCLevel12 },
-    { OMX_VIDEO_AVCProfileBaseline, OMX_VIDEO_AVCLevel13 },
-    { OMX_VIDEO_AVCProfileBaseline, OMX_VIDEO_AVCLevel2  },
-    { OMX_VIDEO_AVCProfileBaseline, OMX_VIDEO_AVCLevel21 },
-    { OMX_VIDEO_AVCProfileBaseline, OMX_VIDEO_AVCLevel22 },
-    { OMX_VIDEO_AVCProfileBaseline, OMX_VIDEO_AVCLevel3  },
-    { OMX_VIDEO_AVCProfileBaseline, OMX_VIDEO_AVCLevel31 },
-    { OMX_VIDEO_AVCProfileBaseline, OMX_VIDEO_AVCLevel32 },
-    { OMX_VIDEO_AVCProfileBaseline, OMX_VIDEO_AVCLevel4  },
-    { OMX_VIDEO_AVCProfileBaseline, OMX_VIDEO_AVCLevel41 },
-    { OMX_VIDEO_AVCProfileBaseline, OMX_VIDEO_AVCLevel42 },
-    { OMX_VIDEO_AVCProfileBaseline, OMX_VIDEO_AVCLevel5  },
-    { OMX_VIDEO_AVCProfileBaseline, OMX_VIDEO_AVCLevel51 },
     { OMX_VIDEO_AVCProfileBaseline, OMX_VIDEO_AVCLevel52 },
 
-    { OMX_VIDEO_AVCProfileMain,     OMX_VIDEO_AVCLevel1  },
-    { OMX_VIDEO_AVCProfileMain,     OMX_VIDEO_AVCLevel1b },
-    { OMX_VIDEO_AVCProfileMain,     OMX_VIDEO_AVCLevel11 },
-    { OMX_VIDEO_AVCProfileMain,     OMX_VIDEO_AVCLevel12 },
-    { OMX_VIDEO_AVCProfileMain,     OMX_VIDEO_AVCLevel13 },
-    { OMX_VIDEO_AVCProfileMain,     OMX_VIDEO_AVCLevel2  },
-    { OMX_VIDEO_AVCProfileMain,     OMX_VIDEO_AVCLevel21 },
-    { OMX_VIDEO_AVCProfileMain,     OMX_VIDEO_AVCLevel22 },
-    { OMX_VIDEO_AVCProfileMain,     OMX_VIDEO_AVCLevel3  },
-    { OMX_VIDEO_AVCProfileMain,     OMX_VIDEO_AVCLevel31 },
-    { OMX_VIDEO_AVCProfileMain,     OMX_VIDEO_AVCLevel32 },
-    { OMX_VIDEO_AVCProfileMain,     OMX_VIDEO_AVCLevel4  },
-    { OMX_VIDEO_AVCProfileMain,     OMX_VIDEO_AVCLevel41 },
-    { OMX_VIDEO_AVCProfileMain,     OMX_VIDEO_AVCLevel42 },
-    { OMX_VIDEO_AVCProfileMain,     OMX_VIDEO_AVCLevel5  },
-    { OMX_VIDEO_AVCProfileMain,     OMX_VIDEO_AVCLevel51 },
     { OMX_VIDEO_AVCProfileMain,     OMX_VIDEO_AVCLevel52 },
 
-    { OMX_VIDEO_AVCProfileHigh,     OMX_VIDEO_AVCLevel1  },
-    { OMX_VIDEO_AVCProfileHigh,     OMX_VIDEO_AVCLevel1b },
-    { OMX_VIDEO_AVCProfileHigh,     OMX_VIDEO_AVCLevel11 },
-    { OMX_VIDEO_AVCProfileHigh,     OMX_VIDEO_AVCLevel12 },
-    { OMX_VIDEO_AVCProfileHigh,     OMX_VIDEO_AVCLevel13 },
-    { OMX_VIDEO_AVCProfileHigh,     OMX_VIDEO_AVCLevel2  },
-    { OMX_VIDEO_AVCProfileHigh,     OMX_VIDEO_AVCLevel21 },
-    { OMX_VIDEO_AVCProfileHigh,     OMX_VIDEO_AVCLevel22 },
-    { OMX_VIDEO_AVCProfileHigh,     OMX_VIDEO_AVCLevel3  },
-    { OMX_VIDEO_AVCProfileHigh,     OMX_VIDEO_AVCLevel31 },
-    { OMX_VIDEO_AVCProfileHigh,     OMX_VIDEO_AVCLevel32 },
-    { OMX_VIDEO_AVCProfileHigh,     OMX_VIDEO_AVCLevel4  },
-    { OMX_VIDEO_AVCProfileHigh,     OMX_VIDEO_AVCLevel41 },
-    { OMX_VIDEO_AVCProfileHigh,     OMX_VIDEO_AVCLevel42 },
-    { OMX_VIDEO_AVCProfileHigh,     OMX_VIDEO_AVCLevel5  },
-    { OMX_VIDEO_AVCProfileHigh,     OMX_VIDEO_AVCLevel51 },
     { OMX_VIDEO_AVCProfileHigh,     OMX_VIDEO_AVCLevel52 },
 };
 
@@ -126,7 +77,7 @@
             1 /* numMinInputBuffers */, kNumBuffers, INPUT_BUF_SIZE,
             1 /* numMinOutputBuffers */, kNumBuffers, CODEC_MIME_TYPE);
 
-    GETTIME(&mTimeStart, NULL);
+    mTimeStart = mTimeEnd = systemTime();
 
     // If input dump is enabled, then open create an empty file
     GENERATE_FILE_NAMES();
@@ -221,8 +172,7 @@
     memset(mTimeStampsValid, 0, sizeof(mTimeStampsValid));
 
     /* Initialize both start and end times */
-    gettimeofday(&mTimeStart, NULL);
-    gettimeofday(&mTimeEnd, NULL);
+    mTimeStart = mTimeEnd = systemTime();
 
     return OK;
 }
@@ -606,7 +556,7 @@
         {
             ivd_video_decode_ip_t s_dec_ip;
             ivd_video_decode_op_t s_dec_op;
-            WORD32 timeDelay, timeTaken;
+            nsecs_t timeDelay, timeTaken;
             size_t sizeY, sizeUV;
 
             if (!setDecodeArgs(&s_dec_ip, &s_dec_op, inHeader, outHeader, timeStampIx)) {
@@ -618,10 +568,10 @@
             // If input dump is enabled, then write to file
             DUMP_TO_FILE(mInFile, s_dec_ip.pv_stream_buffer, s_dec_ip.u4_num_Bytes, mInputOffset);
 
-            GETTIME(&mTimeStart, NULL);
+            mTimeStart = systemTime();
             /* Compute time elapsed between end of previous decode()
              * to start of current decode() */
-            TIME_DIFF(mTimeEnd, mTimeStart, timeDelay);
+            timeDelay = mTimeStart - mTimeEnd;
 
             IV_API_CALL_STATUS_T status;
             status = ivdec_api_function(mCodecCtx, (void *)&s_dec_ip, (void *)&s_dec_op);
@@ -649,11 +599,12 @@
 
             getVUIParams();
 
-            GETTIME(&mTimeEnd, NULL);
+            mTimeEnd = systemTime();
             /* Compute time taken for decode() */
-            TIME_DIFF(mTimeStart, mTimeEnd, timeTaken);
+            timeTaken = mTimeEnd - mTimeStart;
 
-            PRINT_TIME("timeTaken=%6d delay=%6d numBytes=%6d", timeTaken, timeDelay,
+            ALOGV("timeTaken=%6lldus delay=%6lldus numBytes=%6d",
+                    (long long) (timeTaken / 1000ll), (long long) (timeDelay / 1000ll),
                    s_dec_op.u4_num_bytes_consumed);
             if (s_dec_op.u4_frame_decoded_flag && !mFlushNeeded) {
                 mFlushNeeded = true;
diff --git a/media/libstagefright/codecs/avcdec/SoftAVCDec.h b/media/libstagefright/codecs/avcdec/SoftAVCDec.h
index 2a71188..18b7556 100644
--- a/media/libstagefright/codecs/avcdec/SoftAVCDec.h
+++ b/media/libstagefright/codecs/avcdec/SoftAVCDec.h
@@ -41,14 +41,6 @@
 /** Used to remove warnings about unused parameters */
 #define UNUSED(x) ((void)(x))
 
-/** Get time */
-#define GETTIME(a, b) gettimeofday(a, b);
-
-/** Compute difference between start and end */
-#define TIME_DIFF(start, end, diff) \
-    diff = (((end).tv_sec - (start).tv_sec) * 1000000) + \
-            ((end).tv_usec - (start).tv_usec);
-
 struct SoftAVC : public SoftVideoDecoderOMXComponent {
     SoftAVC(const char *name, const OMX_CALLBACKTYPE *callbacks,
             OMX_PTR appData, OMX_COMPONENTTYPE **component);
@@ -70,8 +62,8 @@
 
     size_t mNumCores;            // Number of cores to be uesd by the codec
 
-    struct timeval mTimeStart;   // Time at the start of decode()
-    struct timeval mTimeEnd;     // Time at the end of decode()
+    nsecs_t mTimeStart;   // Time at the start of decode()
+    nsecs_t mTimeEnd;     // Time at the end of decode()
 
     // Internal buffer to be used to flush out the buffers from decoder
     uint8_t *mFlushOutBuffer;
@@ -129,10 +121,9 @@
 #define INPUT_DUMP_EXT      "h264"
 
 #define GENERATE_FILE_NAMES() {                         \
-    GETTIME(&mTimeStart, NULL);                         \
     strcpy(mInFile, "");                                \
-    sprintf(mInFile, "%s_%ld.%ld.%s", INPUT_DUMP_PATH,  \
-            mTimeStart.tv_sec, mTimeStart.tv_usec,      \
+    sprintf(mInFile, "%s_%lld.%s", INPUT_DUMP_PATH,     \
+            (long long) mTimeStart,                     \
             INPUT_DUMP_EXT);                            \
 }
 
diff --git a/media/libstagefright/codecs/avcenc/Android.mk b/media/libstagefright/codecs/avcenc/Android.mk
index 523036a..23ba208 100644
--- a/media/libstagefright/codecs/avcenc/Android.mk
+++ b/media/libstagefright/codecs/avcenc/Android.mk
@@ -12,18 +12,17 @@
 LOCAL_C_INCLUDES := $(TOP)/external/libavc/encoder
 LOCAL_C_INCLUDES += $(TOP)/external/libavc/common
 LOCAL_C_INCLUDES += $(TOP)/frameworks/av/media/libstagefright/include
-LOCAL_C_INCLUDES += $(TOP)/frameworks/native/include/media/openmax
-LOCAL_C_INCLUDES += $(TOP)/frameworks/av/media/libstagefright/include
 LOCAL_C_INCLUDES += $(TOP)/frameworks/native/include/media/hardware
 LOCAL_C_INCLUDES += $(TOP)/frameworks/native/include/media/openmax
 
-LOCAL_SHARED_LIBRARIES  := libstagefright
+LOCAL_SHARED_LIBRARIES  := libmedia
 LOCAL_SHARED_LIBRARIES  += libstagefright_omx
 LOCAL_SHARED_LIBRARIES  += libutils
 LOCAL_SHARED_LIBRARIES  += liblog
 
-LOCAL_CLANG := true
-LOCAL_SANITIZE := signed-integer-overflow
+LOCAL_SANITIZE := signed-integer-overflow cfi
+
+LOCAL_SANITIZE_DIAG := cfi
 
 LOCAL_LDFLAGS := -Wl,-Bsymbolic
 
diff --git a/media/libstagefright/codecs/avcenc/SoftAVCEnc.cpp b/media/libstagefright/codecs/avcenc/SoftAVCEnc.cpp
index 9e7a3be..b057ffe 100644
--- a/media/libstagefright/codecs/avcenc/SoftAVCEnc.cpp
+++ b/media/libstagefright/codecs/avcenc/SoftAVCEnc.cpp
@@ -30,7 +30,6 @@
 #include <media/stagefright/Utils.h>
 #include <OMX_IndexExt.h>
 #include <OMX_VideoExt.h>
-#include <ui/Rect.h>
 
 #include "ih264_typedefs.h"
 #include "iv2.h"
diff --git a/media/libstagefright/codecs/flac/enc/Android.mk b/media/libstagefright/codecs/flac/enc/Android.mk
index 7e6e015..8031bf6 100644
--- a/media/libstagefright/codecs/flac/enc/Android.mk
+++ b/media/libstagefright/codecs/flac/enc/Android.mk
@@ -10,11 +10,11 @@
         external/flac/include
 
 LOCAL_CFLAGS += -Werror
-LOCAL_CLANG := true
-LOCAL_SANITIZE := signed-integer-overflow unsigned-integer-overflow
+LOCAL_SANITIZE := signed-integer-overflow unsigned-integer-overflow cfi
+LOCAL_SANITIZE_DIAG := cfi
 
 LOCAL_SHARED_LIBRARIES := \
-        libstagefright libstagefright_omx libstagefright_foundation libutils liblog
+        libmedia libstagefright_omx libstagefright_foundation libutils liblog
 
 LOCAL_STATIC_LIBRARIES := \
         libFLAC \
diff --git a/media/libstagefright/codecs/g711/dec/Android.mk b/media/libstagefright/codecs/g711/dec/Android.mk
index 8e5a2ff..b9a1f8c 100644
--- a/media/libstagefright/codecs/g711/dec/Android.mk
+++ b/media/libstagefright/codecs/g711/dec/Android.mk
@@ -9,13 +9,13 @@
         frameworks/native/include/media/openmax
 
 LOCAL_SHARED_LIBRARIES := \
-        libstagefright libstagefright_omx libutils liblog
+        libmedia libstagefright_omx libutils liblog
 
 LOCAL_MODULE := libstagefright_soft_g711dec
 LOCAL_MODULE_TAGS := optional
 
 LOCAL_CFLAGS += -Werror
-LOCAL_CLANG := true
-LOCAL_SANITIZE := signed-integer-overflow unsigned-integer-overflow
+LOCAL_SANITIZE := signed-integer-overflow unsigned-integer-overflow cfi
+LOCAL_SANITIZE_DIAG := cfi
 
 include $(BUILD_SHARED_LIBRARY)
diff --git a/media/libstagefright/codecs/gsm/dec/Android.mk b/media/libstagefright/codecs/gsm/dec/Android.mk
index a225c31..401b56c 100644
--- a/media/libstagefright/codecs/gsm/dec/Android.mk
+++ b/media/libstagefright/codecs/gsm/dec/Android.mk
@@ -10,11 +10,11 @@
         external/libgsm/inc
 
 LOCAL_CFLAGS += -Werror
-LOCAL_CLANG := true
-LOCAL_SANITIZE := signed-integer-overflow unsigned-integer-overflow
+LOCAL_SANITIZE := signed-integer-overflow unsigned-integer-overflow cfi
+LOCAL_SANITIZE_DIAG := cfi
 
 LOCAL_SHARED_LIBRARIES := \
-        libstagefright libstagefright_omx libutils liblog
+        libmedia libstagefright_omx libutils liblog
 
 LOCAL_STATIC_LIBRARIES := \
         libgsm
diff --git a/media/libstagefright/codecs/hevcdec/Android.mk b/media/libstagefright/codecs/hevcdec/Android.mk
index 78c4637..11c1b89 100644
--- a/media/libstagefright/codecs/hevcdec/Android.mk
+++ b/media/libstagefright/codecs/hevcdec/Android.mk
@@ -13,10 +13,10 @@
 LOCAL_C_INCLUDES += $(TOP)/external/libhevc/common
 LOCAL_C_INCLUDES += $(TOP)/frameworks/av/media/libstagefright/include
 LOCAL_C_INCLUDES += $(TOP)/frameworks/native/include/media/openmax
-LOCAL_CLANG := true
-LOCAL_SANITIZE := signed-integer-overflow
+LOCAL_SANITIZE := signed-integer-overflow cfi
+LOCAL_SANITIZE_DIAG := cfi
 
-LOCAL_SHARED_LIBRARIES  := libstagefright
+LOCAL_SHARED_LIBRARIES  := libmedia
 LOCAL_SHARED_LIBRARIES  += libstagefright_omx
 LOCAL_SHARED_LIBRARIES  += libstagefright_foundation
 LOCAL_SHARED_LIBRARIES  += libutils
diff --git a/media/libstagefright/codecs/hevcdec/SoftHEVC.cpp b/media/libstagefright/codecs/hevcdec/SoftHEVC.cpp
index 5c70387..a3fd336 100644
--- a/media/libstagefright/codecs/hevcdec/SoftHEVC.cpp
+++ b/media/libstagefright/codecs/hevcdec/SoftHEVC.cpp
@@ -48,14 +48,6 @@
         (IVD_CONTROL_API_COMMAND_TYPE_T)IHEVCD_CXA_CMD_CTL_SET_NUM_CORES
 
 static const CodecProfileLevel kProfileLevels[] = {
-    { OMX_VIDEO_HEVCProfileMain, OMX_VIDEO_HEVCMainTierLevel1  },
-    { OMX_VIDEO_HEVCProfileMain, OMX_VIDEO_HEVCMainTierLevel2  },
-    { OMX_VIDEO_HEVCProfileMain, OMX_VIDEO_HEVCMainTierLevel21 },
-    { OMX_VIDEO_HEVCProfileMain, OMX_VIDEO_HEVCMainTierLevel3  },
-    { OMX_VIDEO_HEVCProfileMain, OMX_VIDEO_HEVCMainTierLevel31 },
-    { OMX_VIDEO_HEVCProfileMain, OMX_VIDEO_HEVCMainTierLevel4  },
-    { OMX_VIDEO_HEVCProfileMain, OMX_VIDEO_HEVCMainTierLevel41 },
-    { OMX_VIDEO_HEVCProfileMain, OMX_VIDEO_HEVCMainTierLevel5  },
     { OMX_VIDEO_HEVCProfileMain, OMX_VIDEO_HEVCMainTierLevel51 },
 };
 
diff --git a/media/libstagefright/codecs/m4v_h263/dec/Android.mk b/media/libstagefright/codecs/m4v_h263/dec/Android.mk
index eb39b44..c20dc4d 100644
--- a/media/libstagefright/codecs/m4v_h263/dec/Android.mk
+++ b/media/libstagefright/codecs/m4v_h263/dec/Android.mk
@@ -47,7 +47,6 @@
 LOCAL_CFLAGS := -DOSCL_EXPORT_REF= -DOSCL_IMPORT_REF=
 
 LOCAL_CFLAGS += -Werror
-LOCAL_CLANG := true
 LOCAL_SANITIZE := signed-integer-overflow
 
 include $(BUILD_STATIC_LIBRARY)
@@ -71,13 +70,13 @@
         libstagefright_m4vh263dec
 
 LOCAL_SHARED_LIBRARIES := \
-        libstagefright libstagefright_omx libstagefright_foundation libutils liblog
+        libmedia libstagefright_omx libstagefright_foundation libutils liblog
 
 LOCAL_MODULE := libstagefright_soft_mpeg4dec
 LOCAL_MODULE_TAGS := optional
 
 LOCAL_CFLAGS += -Werror
-LOCAL_CLANG := true
-LOCAL_SANITIZE := signed-integer-overflow
+LOCAL_SANITIZE := signed-integer-overflow cfi
+LOCAL_SANITIZE_DIAG := cfi
 
 include $(BUILD_SHARED_LIBRARY)
diff --git a/media/libstagefright/codecs/m4v_h263/enc/Android.mk b/media/libstagefright/codecs/m4v_h263/enc/Android.mk
index 9f52538..f950052 100644
--- a/media/libstagefright/codecs/m4v_h263/enc/Android.mk
+++ b/media/libstagefright/codecs/m4v_h263/enc/Android.mk
@@ -34,7 +34,6 @@
     $(TOP)/frameworks/native/include/media/openmax
 
 LOCAL_CFLAGS += -Werror
-LOCAL_CLANG := true
 LOCAL_SANITIZE := signed-integer-overflow
 
 include $(BUILD_STATIC_LIBRARY)
@@ -64,7 +63,7 @@
         libstagefright_m4vh263enc
 
 LOCAL_SHARED_LIBRARIES := \
-        libstagefright \
+        libmedia \
         libstagefright_omx \
         libutils \
         liblog \
@@ -73,8 +72,8 @@
 LOCAL_MODULE_TAGS := optional
 
 LOCAL_CFLAGS += -Werror
-LOCAL_CLANG := true
-LOCAL_SANITIZE := signed-integer-overflow
+LOCAL_SANITIZE := signed-integer-overflow cfi
+LOCAL_SANITIZE_DIAG := cfi
 
 include $(BUILD_SHARED_LIBRARY)
 
@@ -89,7 +88,6 @@
         $(LOCAL_PATH)/include
 
 LOCAL_CFLAGS := -DOSCL_EXPORT_REF= -DOSCL_IMPORT_REF= -DBX_RC
-LOCAL_CLANG := true
 LOCAL_SANITIZE := signed-integer-overflow
 
 LOCAL_STATIC_LIBRARIES := \
diff --git a/media/libstagefright/codecs/m4v_h263/enc/SoftMPEG4Encoder.cpp b/media/libstagefright/codecs/m4v_h263/enc/SoftMPEG4Encoder.cpp
index d5a26d3..6d4cb69 100644
--- a/media/libstagefright/codecs/m4v_h263/enc/SoftMPEG4Encoder.cpp
+++ b/media/libstagefright/codecs/m4v_h263/enc/SoftMPEG4Encoder.cpp
@@ -30,8 +30,6 @@
 #include <media/stagefright/MediaErrors.h>
 #include <media/stagefright/MetaData.h>
 #include <media/stagefright/Utils.h>
-#include <ui/Rect.h>
-#include <ui/GraphicBufferMapper.h>
 
 #include "SoftMPEG4Encoder.h"
 
diff --git a/media/libstagefright/codecs/mp3dec/Android.mk b/media/libstagefright/codecs/mp3dec/Android.mk
index 11581c1..5d153d1 100644
--- a/media/libstagefright/codecs/mp3dec/Android.mk
+++ b/media/libstagefright/codecs/mp3dec/Android.mk
@@ -54,7 +54,6 @@
         -D"OSCL_UNUSED_ARG(x)=(void)(x)"
 
 LOCAL_CFLAGS += -Werror
-LOCAL_CLANG := true
 LOCAL_SANITIZE := signed-integer-overflow
 
 LOCAL_MODULE := libstagefright_mp3dec
@@ -77,11 +76,11 @@
         $(LOCAL_PATH)/include
 
 LOCAL_CFLAGS += -Werror
-LOCAL_CLANG := true
-LOCAL_SANITIZE := signed-integer-overflow
+LOCAL_SANITIZE := signed-integer-overflow cfi
+LOCAL_SANITIZE_DIAG := cfi
 
 LOCAL_SHARED_LIBRARIES := \
-        libstagefright libstagefright_omx libstagefright_foundation libutils liblog
+        libmedia libstagefright_omx libstagefright_foundation libutils liblog
 
 LOCAL_STATIC_LIBRARIES := \
         libstagefright_mp3dec
@@ -103,7 +102,6 @@
         $(LOCAL_PATH)/test/include \
         $(call include-path-for, audio-utils)
 
-LOCAL_CLANG := true
 LOCAL_SANITIZE := signed-integer-overflow
 LOCAL_STATIC_LIBRARIES := \
         libstagefright_mp3dec libsndfile
diff --git a/media/libstagefright/codecs/mpeg2dec/Android.mk b/media/libstagefright/codecs/mpeg2dec/Android.mk
index f1c1719..0afc180 100644
--- a/media/libstagefright/codecs/mpeg2dec/Android.mk
+++ b/media/libstagefright/codecs/mpeg2dec/Android.mk
@@ -14,15 +14,15 @@
 LOCAL_C_INCLUDES += $(TOP)/frameworks/av/media/libstagefright/include
 LOCAL_C_INCLUDES += $(TOP)/frameworks/native/include/media/openmax
 
-LOCAL_SHARED_LIBRARIES  := libstagefright
+LOCAL_SHARED_LIBRARIES  := libmedia
 LOCAL_SHARED_LIBRARIES  += libstagefright_omx
 LOCAL_SHARED_LIBRARIES  += libstagefright_foundation
 LOCAL_SHARED_LIBRARIES  += libutils
 LOCAL_SHARED_LIBRARIES  += liblog
 
 LOCAL_LDFLAGS := -Wl,-Bsymbolic
-LOCAL_CLANG := true
-LOCAL_SANITIZE := signed-integer-overflow
+LOCAL_SANITIZE := signed-integer-overflow cfi
+LOCAL_SANITIZE_DIAG := cfi
 
 include $(BUILD_SHARED_LIBRARY)
 
diff --git a/media/libstagefright/codecs/mpeg2dec/SoftMPEG2.cpp b/media/libstagefright/codecs/mpeg2dec/SoftMPEG2.cpp
index 5ed037a..ce28faf 100644
--- a/media/libstagefright/codecs/mpeg2dec/SoftMPEG2.cpp
+++ b/media/libstagefright/codecs/mpeg2dec/SoftMPEG2.cpp
@@ -47,14 +47,8 @@
         (IVD_CONTROL_API_COMMAND_TYPE_T)IMPEG2D_CMD_CTL_SET_NUM_CORES
 
 static const CodecProfileLevel kProfileLevels[] = {
-    { OMX_VIDEO_MPEG2ProfileSimple, OMX_VIDEO_MPEG2LevelLL  },
-    { OMX_VIDEO_MPEG2ProfileSimple, OMX_VIDEO_MPEG2LevelML  },
-    { OMX_VIDEO_MPEG2ProfileSimple, OMX_VIDEO_MPEG2LevelH14 },
     { OMX_VIDEO_MPEG2ProfileSimple, OMX_VIDEO_MPEG2LevelHL  },
 
-    { OMX_VIDEO_MPEG2ProfileMain  , OMX_VIDEO_MPEG2LevelLL  },
-    { OMX_VIDEO_MPEG2ProfileMain  , OMX_VIDEO_MPEG2LevelML  },
-    { OMX_VIDEO_MPEG2ProfileMain  , OMX_VIDEO_MPEG2LevelH14 },
     { OMX_VIDEO_MPEG2ProfileMain  , OMX_VIDEO_MPEG2LevelHL  },
 };
 
diff --git a/media/libstagefright/codecs/on2/dec/Android.mk b/media/libstagefright/codecs/on2/dec/Android.mk
index 76f7600..8bc7dbc 100644
--- a/media/libstagefright/codecs/on2/dec/Android.mk
+++ b/media/libstagefright/codecs/on2/dec/Android.mk
@@ -15,13 +15,13 @@
         libvpx
 
 LOCAL_SHARED_LIBRARIES := \
-        libstagefright libstagefright_omx libstagefright_foundation libutils liblog
+        libmedia libstagefright_omx libstagefright_foundation libutils liblog
 
 LOCAL_MODULE := libstagefright_soft_vpxdec
 LOCAL_MODULE_TAGS := optional
 
 LOCAL_CFLAGS += -Werror
-LOCAL_CLANG := true
-LOCAL_SANITIZE := signed-integer-overflow unsigned-integer-overflow
+LOCAL_SANITIZE := signed-integer-overflow unsigned-integer-overflow cfi
+LOCAL_SANITIZE_DIAG := cfi
 
 include $(BUILD_SHARED_LIBRARY)
diff --git a/media/libstagefright/codecs/on2/enc/Android.mk b/media/libstagefright/codecs/on2/enc/Android.mk
index 522672b..747aae0 100644
--- a/media/libstagefright/codecs/on2/enc/Android.mk
+++ b/media/libstagefright/codecs/on2/enc/Android.mk
@@ -2,7 +2,9 @@
 include $(CLEAR_VARS)
 
 LOCAL_SRC_FILES := \
-        SoftVPXEncoder.cpp
+        SoftVPXEncoder.cpp \
+        SoftVP8Encoder.cpp \
+        SoftVP9Encoder.cpp
 
 LOCAL_C_INCLUDES := \
         $(TOP)/external/libvpx/libvpx \
@@ -11,14 +13,15 @@
         frameworks/av/media/libstagefright/include \
         frameworks/native/include/media/openmax \
 
-LOCAL_CLANG := true
-LOCAL_SANITIZE := signed-integer-overflow unsigned-integer-overflow
+LOCAL_SANITIZE := signed-integer-overflow unsigned-integer-overflow cfi
+
+LOCAL_SANITIZE_DIAG := cfi
 
 LOCAL_STATIC_LIBRARIES := \
         libvpx
 
 LOCAL_SHARED_LIBRARIES := \
-        libstagefright libstagefright_omx libstagefright_foundation libutils liblog \
+        libmedia libstagefright_omx libstagefright_foundation libutils liblog \
 
 LOCAL_MODULE := libstagefright_soft_vpxenc
 LOCAL_MODULE_TAGS := optional
diff --git a/media/libstagefright/codecs/on2/enc/SoftVP8Encoder.cpp b/media/libstagefright/codecs/on2/enc/SoftVP8Encoder.cpp
new file mode 100644
index 0000000..04737a9
--- /dev/null
+++ b/media/libstagefright/codecs/on2/enc/SoftVP8Encoder.cpp
@@ -0,0 +1,162 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// #define LOG_NDEBUG 0
+#define LOG_TAG "SoftVP8Encoder"
+#include "SoftVP8Encoder.h"
+
+#include <utils/Log.h>
+#include <utils/misc.h>
+
+#include <media/hardware/HardwareAPI.h>
+#include <media/hardware/MetadataBufferType.h>
+#include <media/stagefright/foundation/ADebug.h>
+#include <media/stagefright/MediaDefs.h>
+
+#ifndef INT32_MAX
+#define INT32_MAX   2147483647
+#endif
+
+namespace android {
+
+static const CodecProfileLevel kVp8ProfileLevels[] = {
+    { OMX_VIDEO_VP8ProfileMain, OMX_VIDEO_VP8Level_Version0 },
+    { OMX_VIDEO_VP8ProfileMain, OMX_VIDEO_VP8Level_Version1 },
+    { OMX_VIDEO_VP8ProfileMain, OMX_VIDEO_VP8Level_Version2 },
+    { OMX_VIDEO_VP8ProfileMain, OMX_VIDEO_VP8Level_Version3 },
+};
+
+SoftVP8Encoder::SoftVP8Encoder(const char *name,
+                               const OMX_CALLBACKTYPE *callbacks,
+                               OMX_PTR appData,
+                               OMX_COMPONENTTYPE **component)
+    : SoftVPXEncoder(
+            name, callbacks, appData, component, "video_encoder.vp8",
+            OMX_VIDEO_CodingVP8, MEDIA_MIMETYPE_VIDEO_VP8, 2,
+            kVp8ProfileLevels, NELEM(kVp8ProfileLevels)),
+      mDCTPartitions(0),
+      mLevel(OMX_VIDEO_VP8Level_Version0) {
+}
+
+void SoftVP8Encoder::setCodecSpecificInterface() {
+    mCodecInterface = vpx_codec_vp8_cx();
+}
+
+void SoftVP8Encoder::setCodecSpecificConfiguration() {
+    switch (mLevel) {
+        case OMX_VIDEO_VP8Level_Version0:
+            mCodecConfiguration->g_profile = 0;
+            break;
+
+        case OMX_VIDEO_VP8Level_Version1:
+            mCodecConfiguration->g_profile = 1;
+            break;
+
+        case OMX_VIDEO_VP8Level_Version2:
+            mCodecConfiguration->g_profile = 2;
+            break;
+
+        case OMX_VIDEO_VP8Level_Version3:
+            mCodecConfiguration->g_profile = 3;
+            break;
+
+        default:
+            mCodecConfiguration->g_profile = 0;
+    }
+}
+
+vpx_codec_err_t SoftVP8Encoder::setCodecSpecificControls() {
+    vpx_codec_err_t codec_return = vpx_codec_control(mCodecContext,
+                                                     VP8E_SET_TOKEN_PARTITIONS,
+                                                     mDCTPartitions);
+    if (codec_return != VPX_CODEC_OK) {
+        ALOGE("Error setting dct partitions for vpx encoder.");
+    }
+    return codec_return;
+}
+
+OMX_ERRORTYPE SoftVP8Encoder::internalGetParameter(OMX_INDEXTYPE index,
+                                                   OMX_PTR param) {
+    // can include extension index OMX_INDEXEXTTYPE
+    const int32_t indexFull = index;
+
+    switch (indexFull) {
+        case OMX_IndexParamVideoVp8:
+            return internalGetVp8Params(
+                (OMX_VIDEO_PARAM_VP8TYPE *)param);
+
+        default:
+            return SoftVPXEncoder::internalGetParameter(index, param);
+    }
+}
+
+OMX_ERRORTYPE SoftVP8Encoder::internalSetParameter(OMX_INDEXTYPE index,
+                                                   const OMX_PTR param) {
+    // can include extension index OMX_INDEXEXTTYPE
+    const int32_t indexFull = index;
+
+    switch (indexFull) {
+        case OMX_IndexParamVideoVp8:
+            return internalSetVp8Params(
+                (const OMX_VIDEO_PARAM_VP8TYPE *)param);
+
+        default:
+            return SoftVPXEncoder::internalSetParameter(index, param);
+    }
+}
+
+OMX_ERRORTYPE SoftVP8Encoder::internalGetVp8Params(
+        OMX_VIDEO_PARAM_VP8TYPE* vp8Params) {
+    if (vp8Params->nPortIndex != kOutputPortIndex) {
+        return OMX_ErrorUnsupportedIndex;
+    }
+
+    vp8Params->eProfile = OMX_VIDEO_VP8ProfileMain;
+    vp8Params->eLevel = mLevel;
+    vp8Params->bErrorResilientMode = mErrorResilience;
+    vp8Params->nDCTPartitions = mDCTPartitions;
+    return OMX_ErrorNone;
+}
+
+OMX_ERRORTYPE SoftVP8Encoder::internalSetVp8Params(
+        const OMX_VIDEO_PARAM_VP8TYPE* vp8Params) {
+    if (vp8Params->nPortIndex != kOutputPortIndex) {
+        return OMX_ErrorUnsupportedIndex;
+    }
+
+    if (vp8Params->eProfile != OMX_VIDEO_VP8ProfileMain) {
+        return OMX_ErrorBadParameter;
+    }
+
+    if (vp8Params->eLevel == OMX_VIDEO_VP8Level_Version0 ||
+        vp8Params->eLevel == OMX_VIDEO_VP8Level_Version1 ||
+        vp8Params->eLevel == OMX_VIDEO_VP8Level_Version2 ||
+        vp8Params->eLevel == OMX_VIDEO_VP8Level_Version3) {
+        mLevel = vp8Params->eLevel;
+    } else {
+        return OMX_ErrorBadParameter;
+    }
+
+    mErrorResilience = vp8Params->bErrorResilientMode;
+    if (vp8Params->nDCTPartitions <= kMaxDCTPartitions) {
+        mDCTPartitions = vp8Params->nDCTPartitions;
+    } else {
+        return OMX_ErrorBadParameter;
+    }
+    return OMX_ErrorNone;
+}
+
+}  // namespace android
diff --git a/media/libstagefright/codecs/on2/enc/SoftVP8Encoder.h b/media/libstagefright/codecs/on2/enc/SoftVP8Encoder.h
new file mode 100644
index 0000000..b4904bf
--- /dev/null
+++ b/media/libstagefright/codecs/on2/enc/SoftVP8Encoder.h
@@ -0,0 +1,95 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef SOFT_VP8_ENCODER_H_
+
+#define SOFT_VP8_ENCODER_H_
+
+#include "SoftVPXEncoder.h"
+
+#include <OMX_VideoExt.h>
+#include <OMX_IndexExt.h>
+
+#include <hardware/gralloc.h>
+
+#include "vpx/vpx_encoder.h"
+#include "vpx/vpx_codec.h"
+#include "vpx/vp8cx.h"
+
+namespace android {
+
+// Exposes a vp8 encoder as an OMX Component
+//
+// In addition to the base class settings, Only following encoder settings are
+// available:
+//    - token partitioning
+struct SoftVP8Encoder : public SoftVPXEncoder {
+    SoftVP8Encoder(const char *name,
+                   const OMX_CALLBACKTYPE *callbacks,
+                   OMX_PTR appData,
+                   OMX_COMPONENTTYPE **component);
+
+protected:
+    // Returns current values for requested OMX
+    // parameters
+    virtual OMX_ERRORTYPE internalGetParameter(
+            OMX_INDEXTYPE index, OMX_PTR param);
+
+    // Validates, extracts and stores relevant OMX
+    // parameters
+    virtual OMX_ERRORTYPE internalSetParameter(
+            OMX_INDEXTYPE index, const OMX_PTR param);
+
+    // Populates |mCodecInterface| with codec specific settings.
+    virtual void setCodecSpecificInterface();
+
+    // Sets codec specific configuration.
+    virtual void setCodecSpecificConfiguration();
+
+    // Initializes codec specific encoder settings.
+    virtual vpx_codec_err_t setCodecSpecificControls();
+
+    // Gets vp8 specific parameters.
+    OMX_ERRORTYPE internalGetVp8Params(
+        OMX_VIDEO_PARAM_VP8TYPE* vp8Params);
+
+    // Handles vp8 specific parameters.
+    OMX_ERRORTYPE internalSetVp8Params(
+        const OMX_VIDEO_PARAM_VP8TYPE* vp8Params);
+
+private:
+    // Max value supported for DCT partitions
+    static const uint32_t kMaxDCTPartitions = 3;
+
+    // vp8 specific configuration parameter
+    // that enables token partitioning of
+    // the stream into substreams
+    int32_t mDCTPartitions;
+
+    // Encoder profile corresponding to OMX level parameter
+    //
+    // The inconsistency in the naming is caused by
+    // OMX spec referring vpx profiles (g_profile)
+    // as "levels" whereas using the name "profile" for
+    // something else.
+    OMX_VIDEO_VP8LEVELTYPE mLevel;
+
+    DISALLOW_EVIL_CONSTRUCTORS(SoftVP8Encoder);
+};
+
+}  // namespace android
+
+#endif  // SOFT_VP8_ENCODER_H_
diff --git a/media/libstagefright/codecs/on2/enc/SoftVP9Encoder.cpp b/media/libstagefright/codecs/on2/enc/SoftVP9Encoder.cpp
new file mode 100644
index 0000000..4c7290d
--- /dev/null
+++ b/media/libstagefright/codecs/on2/enc/SoftVP9Encoder.cpp
@@ -0,0 +1,162 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// #define LOG_NDEBUG 0
+#define LOG_TAG "SoftVP9Encoder"
+#include "SoftVP9Encoder.h"
+
+#include <utils/Log.h>
+#include <utils/misc.h>
+
+#include <media/hardware/HardwareAPI.h>
+#include <media/hardware/MetadataBufferType.h>
+#include <media/stagefright/foundation/ADebug.h>
+#include <media/stagefright/MediaDefs.h>
+
+namespace android {
+
+static const CodecProfileLevel kVp9ProfileLevels[] = {
+    { OMX_VIDEO_VP9Profile0, OMX_VIDEO_VP9Level41 },
+};
+
+SoftVP9Encoder::SoftVP9Encoder(
+        const char *name, const OMX_CALLBACKTYPE *callbacks, OMX_PTR appData,
+        OMX_COMPONENTTYPE **component)
+    : SoftVPXEncoder(
+            name, callbacks, appData, component, "video_encoder.vp9",
+            OMX_VIDEO_CodingVP9, MEDIA_MIMETYPE_VIDEO_VP9, 4,
+            kVp9ProfileLevels, NELEM(kVp9ProfileLevels)),
+      mLevel(OMX_VIDEO_VP9Level1),
+      mTileColumns(0),
+      mFrameParallelDecoding(OMX_FALSE) {
+}
+
+void SoftVP9Encoder::setCodecSpecificInterface() {
+    mCodecInterface = vpx_codec_vp9_cx();
+}
+
+void SoftVP9Encoder::setCodecSpecificConfiguration() {
+    mCodecConfiguration->g_profile = 0;
+}
+
+vpx_codec_err_t SoftVP9Encoder::setCodecSpecificControls() {
+    vpx_codec_err_t codecReturn = vpx_codec_control(
+            mCodecContext, VP9E_SET_TILE_COLUMNS, mTileColumns);
+    if (codecReturn != VPX_CODEC_OK) {
+        ALOGE("Error setting VP9E_SET_TILE_COLUMNS to %d. vpx_codec_control() "
+              "returned %d", mTileColumns, codecReturn);
+        return codecReturn;
+    }
+    codecReturn = vpx_codec_control(
+            mCodecContext, VP9E_SET_FRAME_PARALLEL_DECODING,
+            mFrameParallelDecoding);
+    if (codecReturn != VPX_CODEC_OK) {
+        ALOGE("Error setting VP9E_SET_FRAME_PARALLEL_DECODING to %d."
+              "vpx_codec_control() returned %d", mFrameParallelDecoding,
+              codecReturn);
+        return codecReturn;
+    }
+    // For VP9, we always set CPU_USED to 8 (because the realtime default is 0
+    // which is too slow).
+    codecReturn = vpx_codec_control(mCodecContext, VP8E_SET_CPUUSED, 8);
+    if (codecReturn != VPX_CODEC_OK) {
+        ALOGE("Error setting VP8E_SET_CPUUSED to 8. vpx_codec_control() "
+              "returned %d", codecReturn);
+        return codecReturn;
+    }
+    return codecReturn;
+}
+
+OMX_ERRORTYPE SoftVP9Encoder::internalGetParameter(
+        OMX_INDEXTYPE index, OMX_PTR param) {
+    // can include extension index OMX_INDEXEXTTYPE
+    const int32_t indexFull = index;
+
+    switch (indexFull) {
+        case OMX_IndexParamVideoVp9:
+            return internalGetVp9Params(
+                    (OMX_VIDEO_PARAM_VP9TYPE *)param);
+
+        default:
+            return SoftVPXEncoder::internalGetParameter(index, param);
+    }
+}
+
+OMX_ERRORTYPE SoftVP9Encoder::internalSetParameter(
+        OMX_INDEXTYPE index, const OMX_PTR param) {
+    // can include extension index OMX_INDEXEXTTYPE
+    const int32_t indexFull = index;
+
+    switch (indexFull) {
+        case OMX_IndexParamVideoVp9:
+            return internalSetVp9Params(
+                    (const OMX_VIDEO_PARAM_VP9TYPE *)param);
+
+        default:
+            return SoftVPXEncoder::internalSetParameter(index, param);
+    }
+}
+
+OMX_ERRORTYPE SoftVP9Encoder::internalGetVp9Params(
+        OMX_VIDEO_PARAM_VP9TYPE *vp9Params) {
+    if (vp9Params->nPortIndex != kOutputPortIndex) {
+        return OMX_ErrorUnsupportedIndex;
+    }
+
+    vp9Params->eProfile = OMX_VIDEO_VP9Profile0;
+    vp9Params->eLevel = mLevel;
+    vp9Params->bErrorResilientMode = mErrorResilience;
+    vp9Params->nTileColumns = mTileColumns;
+    vp9Params->bEnableFrameParallelDecoding = mFrameParallelDecoding;
+    return OMX_ErrorNone;
+}
+
+OMX_ERRORTYPE SoftVP9Encoder::internalSetVp9Params(
+        const OMX_VIDEO_PARAM_VP9TYPE *vp9Params) {
+    if (vp9Params->nPortIndex != kOutputPortIndex) {
+        return OMX_ErrorUnsupportedIndex;
+    }
+
+    if (vp9Params->eProfile != OMX_VIDEO_VP9Profile0) {
+        return OMX_ErrorBadParameter;
+    }
+
+    if (vp9Params->eLevel == OMX_VIDEO_VP9Level1 ||
+        vp9Params->eLevel == OMX_VIDEO_VP9Level11 ||
+        vp9Params->eLevel == OMX_VIDEO_VP9Level2 ||
+        vp9Params->eLevel == OMX_VIDEO_VP9Level21 ||
+        vp9Params->eLevel == OMX_VIDEO_VP9Level3 ||
+        vp9Params->eLevel == OMX_VIDEO_VP9Level31 ||
+        vp9Params->eLevel == OMX_VIDEO_VP9Level4 ||
+        vp9Params->eLevel == OMX_VIDEO_VP9Level41 ||
+        vp9Params->eLevel == OMX_VIDEO_VP9Level5 ||
+        vp9Params->eLevel == OMX_VIDEO_VP9Level51 ||
+        vp9Params->eLevel == OMX_VIDEO_VP9Level52 ||
+        vp9Params->eLevel == OMX_VIDEO_VP9Level6 ||
+        vp9Params->eLevel == OMX_VIDEO_VP9Level61 ||
+        vp9Params->eLevel == OMX_VIDEO_VP9Level62) {
+        mLevel = vp9Params->eLevel;
+    } else {
+        return OMX_ErrorBadParameter;
+    }
+
+    mErrorResilience = vp9Params->bErrorResilientMode;
+    mTileColumns = vp9Params->nTileColumns;
+    mFrameParallelDecoding = vp9Params->bEnableFrameParallelDecoding;
+    return OMX_ErrorNone;
+}
+
+}  // namespace android
diff --git a/media/libstagefright/codecs/on2/enc/SoftVP9Encoder.h b/media/libstagefright/codecs/on2/enc/SoftVP9Encoder.h
new file mode 100644
index 0000000..85df69a
--- /dev/null
+++ b/media/libstagefright/codecs/on2/enc/SoftVP9Encoder.h
@@ -0,0 +1,93 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef SOFT_VP9_ENCODER_H_
+
+#define SOFT_VP9_ENCODER_H_
+
+#include "SoftVPXEncoder.h"
+
+#include <OMX_VideoExt.h>
+#include <OMX_IndexExt.h>
+
+#include <hardware/gralloc.h>
+
+#include "vpx/vpx_encoder.h"
+#include "vpx/vpx_codec.h"
+#include "vpx/vp8cx.h"
+
+namespace android {
+
+// Exposes a VP9 encoder as an OMX Component
+//
+// In addition to the base class settings, Only following encoder settings are
+// available:
+//    - tile rows
+//    - tile columns
+//    - frame parallel mode
+struct SoftVP9Encoder : public SoftVPXEncoder {
+    SoftVP9Encoder(const char *name,
+                   const OMX_CALLBACKTYPE *callbacks,
+                   OMX_PTR appData,
+                   OMX_COMPONENTTYPE **component);
+
+protected:
+    // Returns current values for requested OMX
+    // parameters
+    virtual OMX_ERRORTYPE internalGetParameter(
+            OMX_INDEXTYPE index, OMX_PTR param);
+
+    // Validates, extracts and stores relevant OMX
+    // parameters
+    virtual OMX_ERRORTYPE internalSetParameter(
+            OMX_INDEXTYPE index, const OMX_PTR param);
+
+    // Populates |mCodecInterface| with codec specific settings.
+    virtual void setCodecSpecificInterface();
+
+    // Sets codec specific configuration.
+    virtual void setCodecSpecificConfiguration();
+
+    // Initializes codec specific encoder settings.
+    virtual vpx_codec_err_t setCodecSpecificControls();
+
+    // Gets vp9 specific parameters.
+    OMX_ERRORTYPE internalGetVp9Params(
+        OMX_VIDEO_PARAM_VP9TYPE* vp9Params);
+
+    // Handles vp9 specific parameters.
+    OMX_ERRORTYPE internalSetVp9Params(
+        const OMX_VIDEO_PARAM_VP9TYPE* vp9Params);
+
+private:
+    // Encoder profile corresponding to OMX level parameter
+    //
+    // The inconsistency in the naming is caused by
+    // OMX spec referring vpx profiles (g_profile)
+    // as "levels" whereas using the name "profile" for
+    // something else.
+    OMX_VIDEO_VP9LEVELTYPE mLevel;
+
+    int32_t mTileColumns;
+
+    OMX_BOOL mFrameParallelDecoding;
+
+    DISALLOW_EVIL_CONSTRUCTORS(SoftVP9Encoder);
+};
+
+}  // namespace android
+
+#endif  // SOFT_VP9_ENCODER_H_
diff --git a/media/libstagefright/codecs/on2/enc/SoftVPXEncoder.cpp b/media/libstagefright/codecs/on2/enc/SoftVPXEncoder.cpp
index 56e1f77..8d69bd5 100644
--- a/media/libstagefright/codecs/on2/enc/SoftVPXEncoder.cpp
+++ b/media/libstagefright/codecs/on2/enc/SoftVPXEncoder.cpp
@@ -18,6 +18,9 @@
 #define LOG_TAG "SoftVPXEncoder"
 #include "SoftVPXEncoder.h"
 
+#include "SoftVP8Encoder.h"
+#include "SoftVP9Encoder.h"
+
 #include <utils/Log.h>
 #include <utils/misc.h>
 
@@ -42,7 +45,6 @@
     params->nVersion.s.nStep = 0;
 }
 
-
 static int GetCPUCoreCount() {
     int cpuCoreCount = 1;
 #if defined(_SC_NPROCESSORS_ONLN)
@@ -55,30 +57,26 @@
     return cpuCoreCount;
 }
 
-static const CodecProfileLevel kProfileLevels[] = {
-    { OMX_VIDEO_VP8ProfileMain, OMX_VIDEO_VP8Level_Version0 },
-    { OMX_VIDEO_VP8ProfileMain, OMX_VIDEO_VP8Level_Version1 },
-    { OMX_VIDEO_VP8ProfileMain, OMX_VIDEO_VP8Level_Version2 },
-    { OMX_VIDEO_VP8ProfileMain, OMX_VIDEO_VP8Level_Version3 },
-};
-
 SoftVPXEncoder::SoftVPXEncoder(const char *name,
                                const OMX_CALLBACKTYPE *callbacks,
                                OMX_PTR appData,
-                               OMX_COMPONENTTYPE **component)
+                               OMX_COMPONENTTYPE **component,
+                               const char* role,
+                               OMX_VIDEO_CODINGTYPE codingType,
+                               const char* mimeType,
+                               int32_t minCompressionRatio,
+                               const CodecProfileLevel *profileLevels,
+                               size_t numProfileLevels)
     : SoftVideoEncoderOMXComponent(
-            name, "video_encoder.vp8", OMX_VIDEO_CodingVP8,
-            kProfileLevels, NELEM(kProfileLevels),
+            name, role, codingType, profileLevels, numProfileLevels,
             176 /* width */, 144 /* height */,
             callbacks, appData, component),
       mCodecContext(NULL),
       mCodecConfiguration(NULL),
       mCodecInterface(NULL),
       mBitrateUpdated(false),
-      mBitrateControlMode(VPX_VBR),  // variable bitrate
-      mDCTPartitions(0),
+      mBitrateControlMode(VPX_VBR),
       mErrorResilience(OMX_FALSE),
-      mLevel(OMX_VIDEO_VP8Level_Version0),
       mKeyFrameInterval(0),
       mMinQuantizer(0),
       mMaxQuantizer(0),
@@ -96,10 +94,9 @@
 
     initPorts(
             kNumBuffers, kNumBuffers, kMinOutputBufferSize,
-            MEDIA_MIMETYPE_VIDEO_VP8, 2 /* minCompressionRatio */);
+            mimeType, minCompressionRatio);
 }
 
-
 SoftVPXEncoder::~SoftVPXEncoder() {
     releaseEncoder();
 }
@@ -108,18 +105,18 @@
     vpx_codec_err_t codec_return;
     status_t result = UNKNOWN_ERROR;
 
-    mCodecInterface = vpx_codec_vp8_cx();
+    setCodecSpecificInterface();
     if (mCodecInterface == NULL) {
         goto CLEAN_UP;
     }
-    ALOGD("VP8: initEncoder. BRMode: %u. TSLayers: %zu. KF: %u. QP: %u - %u",
+    ALOGD("VPx: initEncoder. BRMode: %u. TSLayers: %zu. KF: %u. QP: %u - %u",
           (uint32_t)mBitrateControlMode, mTemporalLayers, mKeyFrameInterval,
           mMinQuantizer, mMaxQuantizer);
 
     mCodecConfiguration = new vpx_codec_enc_cfg_t;
     codec_return = vpx_codec_enc_config_default(mCodecInterface,
                                                 mCodecConfiguration,
-                                                0);  // Codec specific flags
+                                                0);
 
     if (codec_return != VPX_CODEC_OK) {
         ALOGE("Error populating default configuration for vpx encoder.");
@@ -131,27 +128,6 @@
     mCodecConfiguration->g_threads = GetCPUCoreCount();
     mCodecConfiguration->g_error_resilient = mErrorResilience;
 
-    switch (mLevel) {
-        case OMX_VIDEO_VP8Level_Version0:
-            mCodecConfiguration->g_profile = 0;
-            break;
-
-        case OMX_VIDEO_VP8Level_Version1:
-            mCodecConfiguration->g_profile = 1;
-            break;
-
-        case OMX_VIDEO_VP8Level_Version2:
-            mCodecConfiguration->g_profile = 2;
-            break;
-
-        case OMX_VIDEO_VP8Level_Version3:
-            mCodecConfiguration->g_profile = 3;
-            break;
-
-        default:
-            mCodecConfiguration->g_profile = 0;
-    }
-
     // OMX timebase unit is microsecond
     // g_timebase is in seconds (i.e. 1/1000000 seconds)
     mCodecConfiguration->g_timebase.num = 1;
@@ -253,7 +229,6 @@
             goto CLEAN_UP;
         }
     }
-
     // Set bitrate values for each layer
     for (size_t i = 0; i < mCodecConfiguration->ts_number_layers; i++) {
         mCodecConfiguration->ts_target_bitrate[i] =
@@ -271,7 +246,7 @@
     if (mMaxQuantizer > 0) {
         mCodecConfiguration->rc_max_quantizer = mMaxQuantizer;
     }
-
+    setCodecSpecificConfiguration();
     mCodecContext = new vpx_codec_ctx_t;
     codec_return = vpx_codec_enc_init(mCodecContext,
                                       mCodecInterface,
@@ -283,14 +258,6 @@
         goto CLEAN_UP;
     }
 
-    codec_return = vpx_codec_control(mCodecContext,
-                                     VP8E_SET_TOKEN_PARTITIONS,
-                                     mDCTPartitions);
-    if (codec_return != VPX_CODEC_OK) {
-        ALOGE("Error setting dct partitions for vpx encoder.");
-        goto CLEAN_UP;
-    }
-
     // Extra CBR settings
     if (mBitrateControlMode == VPX_CBR) {
         codec_return = vpx_codec_control(mCodecContext,
@@ -318,6 +285,13 @@
         }
     }
 
+    codec_return = setCodecSpecificControls();
+
+    if (codec_return != VPX_CODEC_OK) {
+        // The codec specific method would have logged the error.
+        goto CLEAN_UP;
+    }
+
     if (mColorFormat != OMX_COLOR_FormatYUV420Planar || mInputDataIsMeta) {
         free(mConversionBuffer);
         mConversionBuffer = NULL;
@@ -338,7 +312,6 @@
     return result;
 }
 
-
 status_t SoftVPXEncoder::releaseEncoder() {
     if (mCodecContext != NULL) {
         vpx_codec_destroy(mCodecContext);
@@ -362,7 +335,6 @@
     return OK;
 }
 
-
 OMX_ERRORTYPE SoftVPXEncoder::internalGetParameter(OMX_INDEXTYPE index,
                                                    OMX_PTR param) {
     // can include extension index OMX_INDEXEXTTYPE
@@ -393,54 +365,15 @@
             return OMX_ErrorNone;
         }
 
-        // VP8 specific parameters that use extension headers
-        case OMX_IndexParamVideoVp8: {
-            OMX_VIDEO_PARAM_VP8TYPE *vp8Params =
-                (OMX_VIDEO_PARAM_VP8TYPE *)param;
-
-            if (!isValidOMXParam(vp8Params)) {
-                return OMX_ErrorBadParameter;
-            }
-
-            if (vp8Params->nPortIndex != kOutputPortIndex) {
-                return OMX_ErrorUnsupportedIndex;
-            }
-
-            vp8Params->eProfile = OMX_VIDEO_VP8ProfileMain;
-            vp8Params->eLevel = mLevel;
-            vp8Params->nDCTPartitions = mDCTPartitions;
-            vp8Params->bErrorResilientMode = mErrorResilience;
-            return OMX_ErrorNone;
-        }
-
-        case OMX_IndexParamVideoAndroidVp8Encoder: {
-            OMX_VIDEO_PARAM_ANDROID_VP8ENCODERTYPE *vp8AndroidParams =
-                (OMX_VIDEO_PARAM_ANDROID_VP8ENCODERTYPE *)param;
-
-            if (!isValidOMXParam(vp8AndroidParams)) {
-                return OMX_ErrorBadParameter;
-            }
-
-            if (vp8AndroidParams->nPortIndex != kOutputPortIndex) {
-                return OMX_ErrorUnsupportedIndex;
-            }
-
-            vp8AndroidParams->nKeyFrameInterval = mKeyFrameInterval;
-            vp8AndroidParams->eTemporalPattern = mTemporalPatternType;
-            vp8AndroidParams->nTemporalLayerCount = mTemporalLayers;
-            vp8AndroidParams->nMinQuantizer = mMinQuantizer;
-            vp8AndroidParams->nMaxQuantizer = mMaxQuantizer;
-            memcpy(vp8AndroidParams->nTemporalLayerBitrateRatio,
-                   mTemporalLayerBitrateRatio, sizeof(mTemporalLayerBitrateRatio));
-            return OMX_ErrorNone;
-        }
+        case OMX_IndexParamVideoAndroidVp8Encoder:
+            return internalGetAndroidVpxParams(
+                (OMX_VIDEO_PARAM_ANDROID_VP8ENCODERTYPE *)param);
 
         default:
             return SoftVideoEncoderOMXComponent::internalGetParameter(index, param);
     }
 }
 
-
 OMX_ERRORTYPE SoftVPXEncoder::internalSetParameter(OMX_INDEXTYPE index,
                                                    const OMX_PTR param) {
     // can include extension index OMX_INDEXEXTTYPE
@@ -458,27 +391,9 @@
             return internalSetBitrateParams(bitRate);
         }
 
-        case OMX_IndexParamVideoVp8: {
-            const OMX_VIDEO_PARAM_VP8TYPE *vp8Params =
-                (const OMX_VIDEO_PARAM_VP8TYPE*) param;
-
-            if (!isValidOMXParam(vp8Params)) {
-                return OMX_ErrorBadParameter;
-            }
-
-            return internalSetVp8Params(vp8Params);
-        }
-
-        case OMX_IndexParamVideoAndroidVp8Encoder: {
-            const OMX_VIDEO_PARAM_ANDROID_VP8ENCODERTYPE *vp8AndroidParams =
-                (const OMX_VIDEO_PARAM_ANDROID_VP8ENCODERTYPE*) param;
-
-            if (!isValidOMXParam(vp8AndroidParams)) {
-                return OMX_ErrorBadParameter;
-            }
-
-            return internalSetAndroidVp8Params(vp8AndroidParams);
-        }
+        case OMX_IndexParamVideoAndroidVp8Encoder:
+            return internalSetAndroidVpxParams(
+                (const OMX_VIDEO_PARAM_ANDROID_VP8ENCODERTYPE *)param);
 
         default:
             return SoftVideoEncoderOMXComponent::internalSetParameter(index, param);
@@ -530,77 +445,21 @@
     }
 }
 
-OMX_ERRORTYPE SoftVPXEncoder::internalSetVp8Params(
-        const OMX_VIDEO_PARAM_VP8TYPE* vp8Params) {
-    if (vp8Params->nPortIndex != kOutputPortIndex) {
+OMX_ERRORTYPE SoftVPXEncoder::internalGetBitrateParams(
+        OMX_VIDEO_PARAM_BITRATETYPE* bitrate) {
+    if (bitrate->nPortIndex != kOutputPortIndex) {
         return OMX_ErrorUnsupportedIndex;
     }
 
-    if (vp8Params->eProfile != OMX_VIDEO_VP8ProfileMain) {
-        return OMX_ErrorBadParameter;
-    }
+    bitrate->nTargetBitrate = mBitrate;
 
-    if (vp8Params->eLevel == OMX_VIDEO_VP8Level_Version0 ||
-        vp8Params->eLevel == OMX_VIDEO_VP8Level_Version1 ||
-        vp8Params->eLevel == OMX_VIDEO_VP8Level_Version2 ||
-        vp8Params->eLevel == OMX_VIDEO_VP8Level_Version3) {
-        mLevel = vp8Params->eLevel;
+    if (mBitrateControlMode == VPX_VBR) {
+        bitrate->eControlRate = OMX_Video_ControlRateVariable;
+    } else if (mBitrateControlMode == VPX_CBR) {
+        bitrate->eControlRate = OMX_Video_ControlRateConstant;
     } else {
-        return OMX_ErrorBadParameter;
+        return OMX_ErrorUnsupportedSetting;
     }
-
-    if (vp8Params->nDCTPartitions <= kMaxDCTPartitions) {
-        mDCTPartitions = vp8Params->nDCTPartitions;
-    } else {
-        return OMX_ErrorBadParameter;
-    }
-
-    mErrorResilience = vp8Params->bErrorResilientMode;
-    return OMX_ErrorNone;
-}
-
-OMX_ERRORTYPE SoftVPXEncoder::internalSetAndroidVp8Params(
-        const OMX_VIDEO_PARAM_ANDROID_VP8ENCODERTYPE* vp8AndroidParams) {
-    if (vp8AndroidParams->nPortIndex != kOutputPortIndex) {
-        return OMX_ErrorUnsupportedIndex;
-    }
-    if (vp8AndroidParams->eTemporalPattern != OMX_VIDEO_VPXTemporalLayerPatternNone &&
-        vp8AndroidParams->eTemporalPattern != OMX_VIDEO_VPXTemporalLayerPatternWebRTC) {
-        return OMX_ErrorBadParameter;
-    }
-    if (vp8AndroidParams->nTemporalLayerCount > OMX_VIDEO_ANDROID_MAXVP8TEMPORALLAYERS) {
-        return OMX_ErrorBadParameter;
-    }
-    if (vp8AndroidParams->nMinQuantizer > vp8AndroidParams->nMaxQuantizer) {
-        return OMX_ErrorBadParameter;
-    }
-
-    mTemporalPatternType = vp8AndroidParams->eTemporalPattern;
-    if (vp8AndroidParams->eTemporalPattern == OMX_VIDEO_VPXTemporalLayerPatternWebRTC) {
-        mTemporalLayers = vp8AndroidParams->nTemporalLayerCount;
-    } else if (vp8AndroidParams->eTemporalPattern == OMX_VIDEO_VPXTemporalLayerPatternNone) {
-        mTemporalLayers = 0;
-    }
-    // Check the bitrate distribution between layers is in increasing order
-    if (mTemporalLayers > 1) {
-        for (size_t i = 0; i < mTemporalLayers - 1; i++) {
-            if (vp8AndroidParams->nTemporalLayerBitrateRatio[i + 1] <=
-                    vp8AndroidParams->nTemporalLayerBitrateRatio[i]) {
-                ALOGE("Wrong bitrate ratio - should be in increasing order.");
-                return OMX_ErrorBadParameter;
-            }
-        }
-    }
-    mKeyFrameInterval = vp8AndroidParams->nKeyFrameInterval;
-    mMinQuantizer = vp8AndroidParams->nMinQuantizer;
-    mMaxQuantizer = vp8AndroidParams->nMaxQuantizer;
-    memcpy(mTemporalLayerBitrateRatio, vp8AndroidParams->nTemporalLayerBitrateRatio,
-            sizeof(mTemporalLayerBitrateRatio));
-    ALOGD("VP8: internalSetAndroidVp8Params. BRMode: %u. TS: %zu. KF: %u."
-          " QP: %u - %u BR0: %u. BR1: %u. BR2: %u",
-          (uint32_t)mBitrateControlMode, mTemporalLayers, mKeyFrameInterval,
-          mMinQuantizer, mMaxQuantizer, mTemporalLayerBitrateRatio[0],
-          mTemporalLayerBitrateRatio[1], mTemporalLayerBitrateRatio[2]);
     return OMX_ErrorNone;
 }
 
@@ -623,71 +482,134 @@
     return OMX_ErrorNone;
 }
 
+OMX_ERRORTYPE SoftVPXEncoder::internalGetAndroidVpxParams(
+        OMX_VIDEO_PARAM_ANDROID_VP8ENCODERTYPE *vpxAndroidParams) {
+    if (vpxAndroidParams->nPortIndex != kOutputPortIndex) {
+        return OMX_ErrorUnsupportedIndex;
+    }
+
+    vpxAndroidParams->nKeyFrameInterval = mKeyFrameInterval;
+    vpxAndroidParams->eTemporalPattern = mTemporalPatternType;
+    vpxAndroidParams->nTemporalLayerCount = mTemporalLayers;
+    vpxAndroidParams->nMinQuantizer = mMinQuantizer;
+    vpxAndroidParams->nMaxQuantizer = mMaxQuantizer;
+    memcpy(vpxAndroidParams->nTemporalLayerBitrateRatio,
+           mTemporalLayerBitrateRatio, sizeof(mTemporalLayerBitrateRatio));
+    return OMX_ErrorNone;
+}
+
+OMX_ERRORTYPE SoftVPXEncoder::internalSetAndroidVpxParams(
+        const OMX_VIDEO_PARAM_ANDROID_VP8ENCODERTYPE *vpxAndroidParams) {
+    if (vpxAndroidParams->nPortIndex != kOutputPortIndex) {
+        return OMX_ErrorUnsupportedIndex;
+    }
+    if (vpxAndroidParams->eTemporalPattern != OMX_VIDEO_VPXTemporalLayerPatternNone &&
+            vpxAndroidParams->eTemporalPattern != OMX_VIDEO_VPXTemporalLayerPatternWebRTC) {
+        return OMX_ErrorBadParameter;
+    }
+    if (vpxAndroidParams->nTemporalLayerCount > OMX_VIDEO_ANDROID_MAXVP8TEMPORALLAYERS) {
+        return OMX_ErrorBadParameter;
+    }
+    if (vpxAndroidParams->nMinQuantizer > vpxAndroidParams->nMaxQuantizer) {
+        return OMX_ErrorBadParameter;
+    }
+
+    mTemporalPatternType = vpxAndroidParams->eTemporalPattern;
+    if (vpxAndroidParams->eTemporalPattern == OMX_VIDEO_VPXTemporalLayerPatternWebRTC) {
+        mTemporalLayers = vpxAndroidParams->nTemporalLayerCount;
+    } else if (vpxAndroidParams->eTemporalPattern == OMX_VIDEO_VPXTemporalLayerPatternNone) {
+        mTemporalLayers = 0;
+    }
+    // Check the bitrate distribution between layers is in increasing order
+    if (mTemporalLayers > 1) {
+        for (size_t i = 0; i < mTemporalLayers - 1; i++) {
+            if (vpxAndroidParams->nTemporalLayerBitrateRatio[i + 1] <=
+                    vpxAndroidParams->nTemporalLayerBitrateRatio[i]) {
+                ALOGE("Wrong bitrate ratio - should be in increasing order.");
+                return OMX_ErrorBadParameter;
+            }
+        }
+    }
+    mKeyFrameInterval = vpxAndroidParams->nKeyFrameInterval;
+    mMinQuantizer = vpxAndroidParams->nMinQuantizer;
+    mMaxQuantizer = vpxAndroidParams->nMaxQuantizer;
+    memcpy(mTemporalLayerBitrateRatio, vpxAndroidParams->nTemporalLayerBitrateRatio,
+            sizeof(mTemporalLayerBitrateRatio));
+    ALOGD("VPx: internalSetAndroidVpxParams. BRMode: %u. TS: %zu. KF: %u."
+            " QP: %u - %u BR0: %u. BR1: %u. BR2: %u",
+            (uint32_t)mBitrateControlMode, mTemporalLayers, mKeyFrameInterval,
+            mMinQuantizer, mMaxQuantizer, mTemporalLayerBitrateRatio[0],
+            mTemporalLayerBitrateRatio[1], mTemporalLayerBitrateRatio[2]);
+    return OMX_ErrorNone;
+}
+
 vpx_enc_frame_flags_t SoftVPXEncoder::getEncodeFlags() {
     vpx_enc_frame_flags_t flags = 0;
-    int patternIdx = mTemporalPatternIdx % mTemporalPatternLength;
-    mTemporalPatternIdx++;
-    switch (mTemporalPattern[patternIdx]) {
-        case kTemporalUpdateLast:
-            flags |= VP8_EFLAG_NO_UPD_GF;
-            flags |= VP8_EFLAG_NO_UPD_ARF;
-            flags |= VP8_EFLAG_NO_REF_GF;
-            flags |= VP8_EFLAG_NO_REF_ARF;
-            break;
-        case kTemporalUpdateGoldenWithoutDependency:
-            flags |= VP8_EFLAG_NO_REF_GF;
-            // Deliberately no break here.
-        case kTemporalUpdateGolden:
-            flags |= VP8_EFLAG_NO_REF_ARF;
-            flags |= VP8_EFLAG_NO_UPD_ARF;
-            flags |= VP8_EFLAG_NO_UPD_LAST;
-            break;
-        case kTemporalUpdateAltrefWithoutDependency:
-            flags |= VP8_EFLAG_NO_REF_ARF;
-            flags |= VP8_EFLAG_NO_REF_GF;
-            // Deliberately no break here.
-        case kTemporalUpdateAltref:
-            flags |= VP8_EFLAG_NO_UPD_GF;
-            flags |= VP8_EFLAG_NO_UPD_LAST;
-            break;
-        case kTemporalUpdateNoneNoRefAltref:
-            flags |= VP8_EFLAG_NO_REF_ARF;
-            // Deliberately no break here.
-        case kTemporalUpdateNone:
-            flags |= VP8_EFLAG_NO_UPD_GF;
-            flags |= VP8_EFLAG_NO_UPD_ARF;
-            flags |= VP8_EFLAG_NO_UPD_LAST;
-            flags |= VP8_EFLAG_NO_UPD_ENTROPY;
-            break;
-        case kTemporalUpdateNoneNoRefGoldenRefAltRef:
-            flags |= VP8_EFLAG_NO_REF_GF;
-            flags |= VP8_EFLAG_NO_UPD_GF;
-            flags |= VP8_EFLAG_NO_UPD_ARF;
-            flags |= VP8_EFLAG_NO_UPD_LAST;
-            flags |= VP8_EFLAG_NO_UPD_ENTROPY;
-            break;
-        case kTemporalUpdateGoldenWithoutDependencyRefAltRef:
-            flags |= VP8_EFLAG_NO_REF_GF;
-            flags |= VP8_EFLAG_NO_UPD_ARF;
-            flags |= VP8_EFLAG_NO_UPD_LAST;
-            break;
-        case kTemporalUpdateLastRefAltRef:
-            flags |= VP8_EFLAG_NO_UPD_GF;
-            flags |= VP8_EFLAG_NO_UPD_ARF;
-            flags |= VP8_EFLAG_NO_REF_GF;
-            break;
-        case kTemporalUpdateGoldenRefAltRef:
-            flags |= VP8_EFLAG_NO_UPD_ARF;
-            flags |= VP8_EFLAG_NO_UPD_LAST;
-            break;
-        case kTemporalUpdateLastAndGoldenRefAltRef:
-            flags |= VP8_EFLAG_NO_UPD_ARF;
-            flags |= VP8_EFLAG_NO_REF_GF;
-            break;
-        case kTemporalUpdateLastRefAll:
-            flags |= VP8_EFLAG_NO_UPD_ARF;
-            flags |= VP8_EFLAG_NO_UPD_GF;
-            break;
+    if (mTemporalPatternLength > 0) {
+      int patternIdx = mTemporalPatternIdx % mTemporalPatternLength;
+      mTemporalPatternIdx++;
+      switch (mTemporalPattern[patternIdx]) {
+          case kTemporalUpdateLast:
+              flags |= VP8_EFLAG_NO_UPD_GF;
+              flags |= VP8_EFLAG_NO_UPD_ARF;
+              flags |= VP8_EFLAG_NO_REF_GF;
+              flags |= VP8_EFLAG_NO_REF_ARF;
+              break;
+          case kTemporalUpdateGoldenWithoutDependency:
+              flags |= VP8_EFLAG_NO_REF_GF;
+              // Deliberately no break here.
+          case kTemporalUpdateGolden:
+              flags |= VP8_EFLAG_NO_REF_ARF;
+              flags |= VP8_EFLAG_NO_UPD_ARF;
+              flags |= VP8_EFLAG_NO_UPD_LAST;
+              break;
+          case kTemporalUpdateAltrefWithoutDependency:
+              flags |= VP8_EFLAG_NO_REF_ARF;
+              flags |= VP8_EFLAG_NO_REF_GF;
+              // Deliberately no break here.
+          case kTemporalUpdateAltref:
+              flags |= VP8_EFLAG_NO_UPD_GF;
+              flags |= VP8_EFLAG_NO_UPD_LAST;
+              break;
+          case kTemporalUpdateNoneNoRefAltref:
+              flags |= VP8_EFLAG_NO_REF_ARF;
+              // Deliberately no break here.
+          case kTemporalUpdateNone:
+              flags |= VP8_EFLAG_NO_UPD_GF;
+              flags |= VP8_EFLAG_NO_UPD_ARF;
+              flags |= VP8_EFLAG_NO_UPD_LAST;
+              flags |= VP8_EFLAG_NO_UPD_ENTROPY;
+              break;
+          case kTemporalUpdateNoneNoRefGoldenRefAltRef:
+              flags |= VP8_EFLAG_NO_REF_GF;
+              flags |= VP8_EFLAG_NO_UPD_GF;
+              flags |= VP8_EFLAG_NO_UPD_ARF;
+              flags |= VP8_EFLAG_NO_UPD_LAST;
+              flags |= VP8_EFLAG_NO_UPD_ENTROPY;
+              break;
+          case kTemporalUpdateGoldenWithoutDependencyRefAltRef:
+              flags |= VP8_EFLAG_NO_REF_GF;
+              flags |= VP8_EFLAG_NO_UPD_ARF;
+              flags |= VP8_EFLAG_NO_UPD_LAST;
+              break;
+          case kTemporalUpdateLastRefAltRef:
+              flags |= VP8_EFLAG_NO_UPD_GF;
+              flags |= VP8_EFLAG_NO_UPD_ARF;
+              flags |= VP8_EFLAG_NO_REF_GF;
+              break;
+          case kTemporalUpdateGoldenRefAltRef:
+              flags |= VP8_EFLAG_NO_UPD_ARF;
+              flags |= VP8_EFLAG_NO_UPD_LAST;
+              break;
+          case kTemporalUpdateLastAndGoldenRefAltRef:
+              flags |= VP8_EFLAG_NO_UPD_ARF;
+              flags |= VP8_EFLAG_NO_REF_GF;
+              break;
+          case kTemporalUpdateLastRefAll:
+              flags |= VP8_EFLAG_NO_UPD_ARF;
+              flags |= VP8_EFLAG_NO_UPD_GF;
+              break;
+      }
     }
     return flags;
 }
@@ -765,10 +687,7 @@
         vpx_img_wrap(&raw_frame, VPX_IMG_FMT_I420, mWidth, mHeight,
                      kInputBufferAlignment, (uint8_t *)source);
 
-        vpx_enc_frame_flags_t flags = 0;
-        if (mTemporalPatternLength > 0) {
-            flags = getEncodeFlags();
-        }
+        vpx_enc_frame_flags_t flags = getEncodeFlags();
         if (mKeyFrameRequested) {
             flags |= VPX_EFLAG_FORCE_KF;
             mKeyFrameRequested = false;
@@ -779,7 +698,7 @@
             vpx_codec_err_t res = vpx_codec_enc_config_set(mCodecContext,
                                                            mCodecConfiguration);
             if (res != VPX_CODEC_OK) {
-                ALOGE("vp8 encoder failed to update bitrate: %s",
+                ALOGE("vpx encoder failed to update bitrate: %s",
                       vpx_codec_err_to_string(res));
                 notify(OMX_EventError,
                        OMX_ErrorUndefined,
@@ -856,9 +775,15 @@
 
 }  // namespace android
 
-
 android::SoftOMXComponent *createSoftOMXComponent(
         const char *name, const OMX_CALLBACKTYPE *callbacks,
         OMX_PTR appData, OMX_COMPONENTTYPE **component) {
-    return new android::SoftVPXEncoder(name, callbacks, appData, component);
+  if (!strcmp(name, "OMX.google.vp8.encoder")) {
+      return new android::SoftVP8Encoder(name, callbacks, appData, component);
+  } else if (!strcmp(name, "OMX.google.vp9.encoder")) {
+      return new android::SoftVP9Encoder(name, callbacks, appData, component);
+  } else {
+      CHECK(!"Unknown component");
+  }
+  return NULL;
 }
diff --git a/media/libstagefright/codecs/on2/enc/SoftVPXEncoder.h b/media/libstagefright/codecs/on2/enc/SoftVPXEncoder.h
index 2033e64..86dfad7 100644
--- a/media/libstagefright/codecs/on2/enc/SoftVPXEncoder.h
+++ b/media/libstagefright/codecs/on2/enc/SoftVPXEncoder.h
@@ -31,18 +31,18 @@
 
 namespace android {
 
-// Exposes a vpx encoder as an OMX Component
+// Base class for a VPX Encoder OMX Component
 //
 // Boilerplate for callback bindings are taken care
 // by the base class SimpleSoftOMXComponent and its
 // parent SoftOMXComponent.
 //
-// Only following encoder settings are available
+// Only following encoder settings are available (codec specific settings might
+// be available in the sub-classes):
 //    - target bitrate
 //    - rate control (constant / variable)
 //    - frame rate
 //    - error resilience
-//    - token partitioning
 //    - reconstruction & loop filters (g_profile)
 //
 // Only following color formats are recognized
@@ -54,7 +54,7 @@
 //    - encoding deadline is realtime
 //    - multithreaded encoding utilizes a number of threads equal
 // to online cpu's available
-//    - the algorithm interface for encoder is vp8
+//    - the algorithm interface for encoder is decided by the sub-class in use
 //    - fractional bits of frame rate is discarded
 //    - OMX timestamps are in microseconds, therefore
 // encoder timebase is fixed to 1/1000000
@@ -63,7 +63,13 @@
     SoftVPXEncoder(const char *name,
                    const OMX_CALLBACKTYPE *callbacks,
                    OMX_PTR appData,
-                   OMX_COMPONENTTYPE **component);
+                   OMX_COMPONENTTYPE **component,
+                   const char* role,
+                   OMX_VIDEO_CODINGTYPE codingType,
+                   const char* mimeType,
+                   int32_t minCompressionRatio,
+                   const CodecProfileLevel *profileLevels,
+                   size_t numProfileLevels);
 
 protected:
     virtual ~SoftVPXEncoder();
@@ -89,7 +95,44 @@
 
     virtual void onReset();
 
-private:
+    // Initializes vpx encoder with available settings.
+    status_t initEncoder();
+
+    // Populates mCodecInterface with codec specific settings.
+    virtual void setCodecSpecificInterface() = 0;
+
+    // Sets codec specific configuration.
+    virtual void setCodecSpecificConfiguration() = 0;
+
+    // Sets codec specific encoder controls.
+    virtual vpx_codec_err_t setCodecSpecificControls() = 0;
+
+    // Get current encode flags.
+    virtual vpx_enc_frame_flags_t getEncodeFlags();
+
+    // Releases vpx encoder instance, with it's associated
+    // data structures.
+    //
+    // Unless called earlier, this is handled by the
+    // dtor.
+    status_t releaseEncoder();
+
+    // Get bitrate parameters.
+    virtual OMX_ERRORTYPE internalGetBitrateParams(
+        OMX_VIDEO_PARAM_BITRATETYPE* bitrate);
+
+    // Updates bitrate to reflect port settings.
+    virtual OMX_ERRORTYPE internalSetBitrateParams(
+        const OMX_VIDEO_PARAM_BITRATETYPE* bitrate);
+
+    // Gets Android vpx specific parameters.
+    OMX_ERRORTYPE internalGetAndroidVpxParams(
+            OMX_VIDEO_PARAM_ANDROID_VP8ENCODERTYPE *vpxAndroidParams);
+
+    // Handles Android vpx specific parameters.
+    OMX_ERRORTYPE internalSetAndroidVpxParams(
+            const OMX_VIDEO_PARAM_ANDROID_VP8ENCODERTYPE *vpxAndroidParams);
+
     enum TemporalReferences {
         // For 1 layer case: reference all (last, golden, and alt ref), but only
         // update last.
@@ -139,9 +182,6 @@
     static const uint32_t kInputBufferAlignment = 1;
     static const uint32_t kOutputBufferAlignment = 2;
 
-    // Max value supported for DCT partitions
-    static const uint32_t kMaxDCTPartitions = 3;
-
     // Number of supported input color formats
     static const uint32_t kNumberOfSupportedColorFormats = 3;
 
@@ -163,23 +203,10 @@
     // Bitrate control mode, either constant or variable
     vpx_rc_mode mBitrateControlMode;
 
-    // vp8 specific configuration parameter
-    // that enables token partitioning of
-    // the stream into substreams
-    int32_t mDCTPartitions;
-
     // Parameter that denotes whether error resilience
     // is enabled in encoder
     OMX_BOOL mErrorResilience;
 
-    // Encoder profile corresponding to OMX level parameter
-    //
-    // The inconsistency in the naming is caused by
-    // OMX spec referring vpx profiles (g_profile)
-    // as "levels" whereas using the name "profile" for
-    // something else.
-    OMX_VIDEO_VP8LEVELTYPE mLevel;
-
     // Key frame interval in frames
     uint32_t mKeyFrameInterval;
 
@@ -218,31 +245,6 @@
 
     bool mKeyFrameRequested;
 
-    // Initializes vpx encoder with available settings.
-    status_t initEncoder();
-
-    // Releases vpx encoder instance, with it's associated
-    // data structures.
-    //
-    // Unless called earlier, this is handled by the
-    // dtor.
-    status_t releaseEncoder();
-
-    // Get current encode flags
-    vpx_enc_frame_flags_t getEncodeFlags();
-
-    // Updates bitrate to reflect port settings.
-    OMX_ERRORTYPE internalSetBitrateParams(
-        const OMX_VIDEO_PARAM_BITRATETYPE* bitrate);
-
-    // Handles vp8 specific parameters.
-    OMX_ERRORTYPE internalSetVp8Params(
-        const OMX_VIDEO_PARAM_VP8TYPE* vp8Params);
-
-    // Handles Android vp8 specific parameters.
-    OMX_ERRORTYPE internalSetAndroidVp8Params(
-        const OMX_VIDEO_PARAM_ANDROID_VP8ENCODERTYPE* vp8AndroidParams);
-
     DISALLOW_EVIL_CONSTRUCTORS(SoftVPXEncoder);
 };
 
diff --git a/media/libstagefright/codecs/on2/h264dec/Android.mk b/media/libstagefright/codecs/on2/h264dec/Android.mk
index 7159674..10147ec 100644
--- a/media/libstagefright/codecs/on2/h264dec/Android.mk
+++ b/media/libstagefright/codecs/on2/h264dec/Android.mk
@@ -95,11 +95,12 @@
                         $(LOCAL_PATH)/./omxdl/arm_neon/vc/m4p10/api
 endif
 
-LOCAL_CLANG := true
-LOCAL_SANITIZE := signed-integer-overflow
+LOCAL_SANITIZE := signed-integer-overflow cfi
+
+LOCAL_SANITIZE_DIAG := cfi
 
 LOCAL_SHARED_LIBRARIES := \
-	libstagefright libstagefright_omx libstagefright_foundation libutils liblog \
+	libmedia libstagefright_omx libstagefright_foundation libutils liblog \
 
 LOCAL_MODULE := libstagefright_soft_h264dec
 
diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/ARM_DELIVERY.TXT b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/ARM_DELIVERY.TXT
old mode 100755
new mode 100644
diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/ARM_MANIFEST.TXT b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/ARM_MANIFEST.TXT
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diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/filelist_vc.txt b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/filelist_vc.txt
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diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/comm/src/omxVCCOMM_Copy16x16_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/comm/src/omxVCCOMM_Copy16x16_s.s
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diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/comm/src/omxVCCOMM_Copy8x8_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/comm/src/omxVCCOMM_Copy8x8_s.s
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diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/comm/src/omxVCCOMM_ExpandFrame_I_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/comm/src/omxVCCOMM_ExpandFrame_I_s.s
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diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/armVCM4P10_Average_4x_Align_unsafe_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/armVCM4P10_Average_4x_Align_unsafe_s.s
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diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/armVCM4P10_DeblockingChroma_unsafe_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/armVCM4P10_DeblockingChroma_unsafe_s.s
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diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/armVCM4P10_DeblockingLuma_unsafe_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/armVCM4P10_DeblockingLuma_unsafe_s.s
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diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/armVCM4P10_DecodeCoeffsToPair_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/armVCM4P10_DecodeCoeffsToPair_s.s
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diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/armVCM4P10_DequantTables_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/armVCM4P10_DequantTables_s.s
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diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/armVCM4P10_InterpolateLuma_Align_unsafe_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/armVCM4P10_InterpolateLuma_Align_unsafe_s.s
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diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/armVCM4P10_InterpolateLuma_Copy_unsafe_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/armVCM4P10_InterpolateLuma_Copy_unsafe_s.s
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diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/armVCM4P10_InterpolateLuma_DiagCopy_unsafe_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/armVCM4P10_InterpolateLuma_DiagCopy_unsafe_s.s
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diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/armVCM4P10_InterpolateLuma_HalfDiagHorVer4x4_unsafe_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/armVCM4P10_InterpolateLuma_HalfDiagHorVer4x4_unsafe_s.s
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diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/armVCM4P10_InterpolateLuma_HalfHor4x4_unsafe_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/armVCM4P10_InterpolateLuma_HalfHor4x4_unsafe_s.s
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diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/armVCM4P10_Interpolate_Chroma_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/armVCM4P10_Interpolate_Chroma_s.s
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diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/armVCM4P10_QuantTables_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/armVCM4P10_QuantTables_s.s
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diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/armVCM4P10_TransformResidual4x4_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/armVCM4P10_TransformResidual4x4_s.s
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diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/armVCM4P10_UnpackBlock4x4_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/armVCM4P10_UnpackBlock4x4_s.s
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diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/omxVCM4P10_DequantTransformResidualFromPairAndAdd_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/omxVCM4P10_DequantTransformResidualFromPairAndAdd_s.s
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diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/omxVCM4P10_FilterDeblockingLuma_HorEdge_I_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/omxVCM4P10_FilterDeblockingLuma_HorEdge_I_s.s
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diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/omxVCM4P10_FilterDeblockingLuma_VerEdge_I_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/omxVCM4P10_FilterDeblockingLuma_VerEdge_I_s.s
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diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/omxVCM4P10_InterpolateLuma_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/omxVCM4P10_InterpolateLuma_s.s
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diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/omxVCM4P10_PredictIntraChroma_8x8_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/omxVCM4P10_PredictIntraChroma_8x8_s.s
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diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/omxVCM4P10_PredictIntra_16x16_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/omxVCM4P10_PredictIntra_16x16_s.s
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diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/omxVCM4P10_PredictIntra_4x4_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/omxVCM4P10_PredictIntra_4x4_s.s
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diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/omxVCM4P10_TransformDequantChromaDCFromPair_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/omxVCM4P10_TransformDequantChromaDCFromPair_s.s
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diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/omxVCM4P10_TransformDequantLumaDCFromPair_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p10/src/omxVCM4P10_TransformDequantLumaDCFromPair_s.s
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diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p2/src/armVCM4P2_Clip8_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p2/src/armVCM4P2_Clip8_s.s
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diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p2/src/armVCM4P2_SetPredDir_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p2/src/armVCM4P2_SetPredDir_s.s
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diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p2/src/omxVCM4P2_DecodePadMV_PVOP_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p2/src/omxVCM4P2_DecodePadMV_PVOP_s.s
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diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p2/src/omxVCM4P2_DecodeVLCZigzag_Inter_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p2/src/omxVCM4P2_DecodeVLCZigzag_Inter_s.s
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new mode 100644
diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p2/src/omxVCM4P2_DecodeVLCZigzag_IntraACVLC_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p2/src/omxVCM4P2_DecodeVLCZigzag_IntraACVLC_s.s
old mode 100755
new mode 100644
diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p2/src/omxVCM4P2_DecodeVLCZigzag_IntraDCVLC_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p2/src/omxVCM4P2_DecodeVLCZigzag_IntraDCVLC_s.s
old mode 100755
new mode 100644
diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p2/src/omxVCM4P2_FindMVpred_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p2/src/omxVCM4P2_FindMVpred_s.s
old mode 100755
new mode 100644
diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p2/src/omxVCM4P2_IDCT8x8blk_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p2/src/omxVCM4P2_IDCT8x8blk_s.s
old mode 100755
new mode 100644
diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p2/src/omxVCM4P2_MCReconBlock_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p2/src/omxVCM4P2_MCReconBlock_s.s
old mode 100755
new mode 100644
diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p2/src/omxVCM4P2_PredictReconCoefIntra_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p2/src/omxVCM4P2_PredictReconCoefIntra_s.s
old mode 100755
new mode 100644
diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p2/src/omxVCM4P2_QuantInvInter_I_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p2/src/omxVCM4P2_QuantInvInter_I_s.s
old mode 100755
new mode 100644
diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p2/src/omxVCM4P2_QuantInvIntra_I_s.s b/media/libstagefright/codecs/on2/h264dec/omxdl/arm_neon/vc/m4p2/src/omxVCM4P2_QuantInvIntra_I_s.s
old mode 100755
new mode 100644
diff --git a/media/libstagefright/codecs/on2/h264dec/source/arm11_asm/h264bsd_interpolate_chroma_hor.s b/media/libstagefright/codecs/on2/h264dec/source/arm11_asm/h264bsd_interpolate_chroma_hor.s
old mode 100755
new mode 100644
diff --git a/media/libstagefright/codecs/on2/h264dec/source/arm11_asm/h264bsd_interpolate_chroma_hor_ver.s b/media/libstagefright/codecs/on2/h264dec/source/arm11_asm/h264bsd_interpolate_chroma_hor_ver.s
old mode 100755
new mode 100644
diff --git a/media/libstagefright/codecs/on2/h264dec/source/arm11_asm/h264bsd_interpolate_chroma_ver.s b/media/libstagefright/codecs/on2/h264dec/source/arm11_asm/h264bsd_interpolate_chroma_ver.s
old mode 100755
new mode 100644
diff --git a/media/libstagefright/codecs/on2/h264dec/source/arm11_asm/h264bsd_interpolate_hor_half.s b/media/libstagefright/codecs/on2/h264dec/source/arm11_asm/h264bsd_interpolate_hor_half.s
old mode 100755
new mode 100644
diff --git a/media/libstagefright/codecs/on2/h264dec/source/arm11_asm/h264bsd_interpolate_hor_quarter.s b/media/libstagefright/codecs/on2/h264dec/source/arm11_asm/h264bsd_interpolate_hor_quarter.s
old mode 100755
new mode 100644
diff --git a/media/libstagefright/codecs/on2/h264dec/source/arm11_asm/h264bsd_interpolate_hor_ver_quarter.s b/media/libstagefright/codecs/on2/h264dec/source/arm11_asm/h264bsd_interpolate_hor_ver_quarter.s
old mode 100755
new mode 100644
diff --git a/media/libstagefright/codecs/on2/h264dec/source/arm11_asm/h264bsd_interpolate_mid_hor.s b/media/libstagefright/codecs/on2/h264dec/source/arm11_asm/h264bsd_interpolate_mid_hor.s
old mode 100755
new mode 100644
diff --git a/media/libstagefright/codecs/on2/h264dec/source/arm11_asm/h264bsd_interpolate_ver_half.s b/media/libstagefright/codecs/on2/h264dec/source/arm11_asm/h264bsd_interpolate_ver_half.s
old mode 100755
new mode 100644
diff --git a/media/libstagefright/codecs/on2/h264dec/source/arm11_asm/h264bsd_interpolate_ver_quarter.s b/media/libstagefright/codecs/on2/h264dec/source/arm11_asm/h264bsd_interpolate_ver_quarter.s
old mode 100755
new mode 100644
diff --git a/media/libstagefright/codecs/opus/dec/Android.mk b/media/libstagefright/codecs/opus/dec/Android.mk
index f272763..5b887b3 100644
--- a/media/libstagefright/codecs/opus/dec/Android.mk
+++ b/media/libstagefright/codecs/opus/dec/Android.mk
@@ -10,11 +10,12 @@
         frameworks/native/include/media/openmax \
 
 LOCAL_SHARED_LIBRARIES := \
-        libopus libstagefright libstagefright_omx \
+        libopus libmedia libstagefright_omx \
         libstagefright_foundation libutils liblog
 
-LOCAL_CLANG := true
-LOCAL_SANITIZE := signed-integer-overflow unsigned-integer-overflow
+LOCAL_SANITIZE := signed-integer-overflow unsigned-integer-overflow cfi
+
+LOCAL_SANITIZE_DIAG := cfi
 
 LOCAL_MODULE := libstagefright_soft_opusdec
 LOCAL_MODULE_TAGS := optional
diff --git a/media/libstagefright/codecs/raw/Android.mk b/media/libstagefright/codecs/raw/Android.mk
index e454c84..5fe260b 100644
--- a/media/libstagefright/codecs/raw/Android.mk
+++ b/media/libstagefright/codecs/raw/Android.mk
@@ -9,8 +9,8 @@
         frameworks/native/include/media/openmax
 
 LOCAL_CFLAGS += -Werror
-LOCAL_CLANG := true
-LOCAL_SANITIZE := signed-integer-overflow unsigned-integer-overflow
+LOCAL_SANITIZE := signed-integer-overflow unsigned-integer-overflow cfi
+LOCAL_SANITIZE_DIAG := cfi
 
 LOCAL_SHARED_LIBRARIES := \
         libstagefright_omx libstagefright_foundation libutils liblog
diff --git a/media/libstagefright/codecs/vorbis/dec/Android.mk b/media/libstagefright/codecs/vorbis/dec/Android.mk
index 039be6f..3d72d3a 100644
--- a/media/libstagefright/codecs/vorbis/dec/Android.mk
+++ b/media/libstagefright/codecs/vorbis/dec/Android.mk
@@ -10,14 +10,13 @@
         frameworks/native/include/media/openmax \
 
 LOCAL_SHARED_LIBRARIES := \
-        libvorbisidec libstagefright libstagefright_omx \
+        libvorbisidec libmedia libstagefright_omx \
         libstagefright_foundation libutils liblog
 
 LOCAL_MODULE := libstagefright_soft_vorbisdec
 LOCAL_MODULE_TAGS := optional
 
 LOCAL_CFLAGS += -Werror
-LOCAL_CLANG := true
 LOCAL_SANITIZE := signed-integer-overflow unsigned-integer-overflow
 
 include $(BUILD_SHARED_LIBRARY)
diff --git a/media/libstagefright/colorconversion/Android.mk b/media/libstagefright/colorconversion/Android.mk
index 0bf9701..1e7a4cc 100644
--- a/media/libstagefright/colorconversion/Android.mk
+++ b/media/libstagefright/colorconversion/Android.mk
@@ -10,12 +10,15 @@
         $(TOP)/hardware/msm7k \
         $(TOP)/external/libyuv/files/include
 
+LOCAL_SHARED_LIBRARIES := \
+        libui \
+
 LOCAL_STATIC_LIBRARIES := \
         libyuv_static \
 
 LOCAL_CFLAGS += -Werror
-LOCAL_CLANG := true
-LOCAL_SANITIZE := signed-integer-overflow
+LOCAL_SANITIZE := signed-integer-overflow cfi
+LOCAL_SANITIZE_DIAG := cfi
 
 LOCAL_MODULE:= libstagefright_color_conversion
 
diff --git a/media/libstagefright/colorconversion/SoftwareRenderer.cpp b/media/libstagefright/colorconversion/SoftwareRenderer.cpp
index bbc4d26..54487b3 100644
--- a/media/libstagefright/colorconversion/SoftwareRenderer.cpp
+++ b/media/libstagefright/colorconversion/SoftwareRenderer.cpp
@@ -24,7 +24,8 @@
 #include <media/stagefright/foundation/AMessage.h>
 #include <system/window.h>
 #include <ui/GraphicBufferMapper.h>
-#include <gui/IGraphicBufferProducer.h>
+#include <ui/GraphicBuffer.h>
+#include <ui/Rect.h>
 
 namespace android {
 
diff --git a/media/libstagefright/data/media_codecs_google_video.xml b/media/libstagefright/data/media_codecs_google_video.xml
index b03c769..ce164a2 100644
--- a/media/libstagefright/data/media_codecs_google_video.xml
+++ b/media/libstagefright/data/media_codecs_google_video.xml
@@ -101,5 +101,12 @@
             <Limit name="bitrate" range="1-40000000" />
             <Feature name="bitrate-modes" value="VBR,CBR" />
         </MediaCodec>
+        <MediaCodec name="OMX.google.vp9.encoder" type="video/x-vnd.on2.vp9">
+            <!-- profiles and levels:  ProfileMain : Level_Version0-3 -->
+            <Limit name="size" min="2x2" max="2048x2048" />
+            <Limit name="alignment" value="2x2" />
+            <Limit name="bitrate" range="1-40000000" />
+            <Feature name="bitrate-modes" value="VBR,CBR" />
+        </MediaCodec>
     </Encoders>
 </Included>
diff --git a/media/libstagefright/filters/Android.mk b/media/libstagefright/filters/Android.mk
index bd75a88..d4ecfcc 100644
--- a/media/libstagefright/filters/Android.mk
+++ b/media/libstagefright/filters/Android.mk
@@ -21,10 +21,15 @@
 LOCAL_C_INCLUDES += $(intermediates)
 
 LOCAL_CFLAGS += -Wno-multichar -Werror -Wall
-LOCAL_CLANG := true
 
-LOCAL_SHARED_LIBRARIES := libmedia
+LOCAL_SHARED_LIBRARIES := \
+        libgui \
+        libmedia \
+        libhidlmemory \
 
 LOCAL_MODULE:= libstagefright_mediafilter
 
+LOCAL_SANITIZE := cfi
+LOCAL_SANITIZE_DIAG := cfi
+
 include $(BUILD_STATIC_LIBRARY)
diff --git a/media/libstagefright/filters/GraphicBufferListener.cpp b/media/libstagefright/filters/GraphicBufferListener.cpp
index c1aaa17..db061c1 100644
--- a/media/libstagefright/filters/GraphicBufferListener.cpp
+++ b/media/libstagefright/filters/GraphicBufferListener.cpp
@@ -22,6 +22,7 @@
 #include <media/stagefright/MediaErrors.h>
 
 #include <gui/BufferItem.h>
+#include <utils/String8.h>
 
 #include "GraphicBufferListener.h"
 
diff --git a/media/libstagefright/filters/IntrinsicBlurFilter.cpp b/media/libstagefright/filters/IntrinsicBlurFilter.cpp
index cbcf699..e00afd9 100644
--- a/media/libstagefright/filters/IntrinsicBlurFilter.cpp
+++ b/media/libstagefright/filters/IntrinsicBlurFilter.cpp
@@ -19,7 +19,7 @@
 
 #include <utils/Log.h>
 
-#include <media/stagefright/foundation/ABuffer.h>
+#include <media/MediaCodecBuffer.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/AMessage.h>
 
@@ -88,7 +88,7 @@
 }
 
 status_t IntrinsicBlurFilter::processBuffers(
-        const sp<ABuffer> &srcBuffer, const sp<ABuffer> &outBuffer) {
+        const sp<MediaCodecBuffer> &srcBuffer, const sp<MediaCodecBuffer> &outBuffer) {
     mAllocIn->copy1DRangeFrom(0, mWidth * mHeight, srcBuffer->data());
     mBlur->forEach(mAllocOut);
     mAllocOut->copy1DRangeTo(0, mWidth * mHeight, outBuffer->data());
diff --git a/media/libstagefright/filters/IntrinsicBlurFilter.h b/media/libstagefright/filters/IntrinsicBlurFilter.h
index 4707ab7..a2aabfa 100644
--- a/media/libstagefright/filters/IntrinsicBlurFilter.h
+++ b/media/libstagefright/filters/IntrinsicBlurFilter.h
@@ -31,7 +31,7 @@
     virtual void reset();
     virtual status_t setParameters(const sp<AMessage> &msg);
     virtual status_t processBuffers(
-            const sp<ABuffer> &srcBuffer, const sp<ABuffer> &outBuffer);
+            const sp<MediaCodecBuffer> &srcBuffer, const sp<MediaCodecBuffer> &outBuffer);
 
 protected:
     virtual ~IntrinsicBlurFilter() {};
diff --git a/media/libstagefright/filters/MediaFilter.cpp b/media/libstagefright/filters/MediaFilter.cpp
index cd69418..777ab5b 100644
--- a/media/libstagefright/filters/MediaFilter.cpp
+++ b/media/libstagefright/filters/MediaFilter.cpp
@@ -31,6 +31,8 @@
 #include <media/stagefright/MediaErrors.h>
 #include <media/stagefright/MediaFilter.h>
 
+#include <media/MediaCodecBuffer.h>
+
 #include <gui/BufferItem.h>
 
 #include "ColorConvert.h"
@@ -40,6 +42,9 @@
 #include "SaturationFilter.h"
 #include "ZeroFilter.h"
 
+#include "../include/ACodecBufferChannel.h"
+#include "../include/SharedMemoryBuffer.h"
+
 namespace android {
 
 // parameter: number of input and output buffers
@@ -49,6 +54,9 @@
     : mState(UNINITIALIZED),
       mGeneration(0),
       mGraphicBufferListener(NULL) {
+    mBufferChannel = std::make_shared<ACodecBufferChannel>(
+            new AMessage(kWhatInputBufferFilled, this),
+            new AMessage(kWhatOutputBufferDrained, this));
 }
 
 MediaFilter::~MediaFilter() {
@@ -56,8 +64,8 @@
 
 //////////////////// PUBLIC FUNCTIONS //////////////////////////////////////////
 
-void MediaFilter::setNotificationMessage(const sp<AMessage> &msg) {
-    mNotify = msg;
+std::shared_ptr<BufferChannelBase> MediaFilter::getBufferChannel() {
+    return mBufferChannel;
 }
 
 void MediaFilter::initiateAllocateComponent(const sp<AMessage> &msg) {
@@ -189,29 +197,6 @@
     }
 }
 
-//////////////////// PORT DESCRIPTION //////////////////////////////////////////
-
-MediaFilter::PortDescription::PortDescription() {
-}
-
-void MediaFilter::PortDescription::addBuffer(
-        IOMX::buffer_id id, const sp<ABuffer> &buffer) {
-    mBufferIDs.push_back(id);
-    mBuffers.push_back(buffer);
-}
-
-size_t MediaFilter::PortDescription::countBuffers() {
-    return mBufferIDs.size();
-}
-
-IOMX::buffer_id MediaFilter::PortDescription::bufferIDAt(size_t index) const {
-    return mBufferIDs.itemAt(index);
-}
-
-sp<ABuffer> MediaFilter::PortDescription::bufferAt(size_t index) const {
-    return mBuffers.itemAt(index);
-}
-
 //////////////////// HELPER FUNCTIONS //////////////////////////////////////////
 
 void MediaFilter::signalProcessBuffers() {
@@ -219,10 +204,7 @@
 }
 
 void MediaFilter::signalError(status_t error) {
-    sp<AMessage> notify = mNotify->dup();
-    notify->setInt32("what", CodecBase::kWhatError);
-    notify->setInt32("err", error);
-    notify->post();
+    mCallback->onError(error, ACTION_CODE_FATAL);
 }
 
 status_t MediaFilter::allocateBuffersOnPort(OMX_U32 portIndex) {
@@ -250,7 +232,8 @@
         info.mBufferID = i;
         info.mGeneration = mGeneration;
         info.mOutputFlags = 0;
-        info.mData = new ABuffer(mem->pointer(), bufferSize);
+        info.mData = new SharedMemoryBuffer(
+                isInput ? mInputFormat : mOutputFormat, mem);
         info.mData->meta()->setInt64("timeUs", 0);
 
         mBuffers[portIndex].push_back(info);
@@ -261,21 +244,15 @@
         }
     }
 
-    sp<AMessage> notify = mNotify->dup();
-    notify->setInt32("what", CodecBase::kWhatBuffersAllocated);
-
-    notify->setInt32("portIndex", portIndex);
-
-    sp<PortDescription> desc = new PortDescription;
-
+    std::vector<ACodecBufferChannel::BufferAndId> array(mBuffers[portIndex].size());
     for (size_t i = 0; i < mBuffers[portIndex].size(); ++i) {
-        const BufferInfo &info = mBuffers[portIndex][i];
-
-        desc->addBuffer(info.mBufferID, info.mData);
+        array[i] = {mBuffers[portIndex][i].mData, mBuffers[portIndex][i].mBufferID};
     }
-
-    notify->setObject("portDesc", desc);
-    notify->post();
+    if (portIndex == kPortIndexInput) {
+        mBufferChannel->setInputBufferArray(array);
+    } else {
+        mBufferChannel->setOutputBufferArray(array);
+    }
 
     return OK;
 }
@@ -309,20 +286,14 @@
 
     info->mGeneration = mGeneration;
 
-    sp<AMessage> notify = mNotify->dup();
-    notify->setInt32("what", CodecBase::kWhatFillThisBuffer);
-    notify->setInt32("buffer-id", info->mBufferID);
-
     info->mData->meta()->clear();
-    notify->setBuffer("buffer", info->mData);
 
     sp<AMessage> reply = new AMessage(kWhatInputBufferFilled, this);
     reply->setInt32("buffer-id", info->mBufferID);
 
-    notify->setMessage("reply", reply);
-
     info->mStatus = BufferInfo::OWNED_BY_UPSTREAM;
-    notify->post();
+
+    mBufferChannel->fillThisBuffer(info->mBufferID);
 }
 
 void MediaFilter::postDrainThisBuffer(BufferInfo *info) {
@@ -330,50 +301,20 @@
 
     info->mGeneration = mGeneration;
 
-    sp<AMessage> notify = mNotify->dup();
-    notify->setInt32("what", CodecBase::kWhatDrainThisBuffer);
-    notify->setInt32("buffer-id", info->mBufferID);
-    notify->setInt32("flags", info->mOutputFlags);
-    notify->setBuffer("buffer", info->mData);
-
     sp<AMessage> reply = new AMessage(kWhatOutputBufferDrained, this);
     reply->setInt32("buffer-id", info->mBufferID);
 
-    notify->setMessage("reply", reply);
-
-    notify->post();
+    mBufferChannel->drainThisBuffer(info->mBufferID, info->mOutputFlags);
 
     info->mStatus = BufferInfo::OWNED_BY_UPSTREAM;
 }
 
 void MediaFilter::postEOS() {
-    sp<AMessage> notify = mNotify->dup();
-    notify->setInt32("what", CodecBase::kWhatEOS);
-    notify->setInt32("err", ERROR_END_OF_STREAM);
-    notify->post();
+    mCallback->onEos(ERROR_END_OF_STREAM);
 
     ALOGV("Sent kWhatEOS.");
 }
 
-void MediaFilter::sendFormatChange() {
-    sp<AMessage> notify = mNotify->dup();
-
-    notify->setInt32("what", kWhatOutputFormatChanged);
-
-    AString mime;
-    CHECK(mOutputFormat->findString("mime", &mime));
-    notify->setString("mime", mime.c_str());
-
-    notify->setInt32("stride", mStride);
-    notify->setInt32("slice-height", mSliceHeight);
-    notify->setInt32("color-format", mColorFormatOut);
-    notify->setRect("crop", 0, 0, mStride - 1, mSliceHeight - 1);
-    notify->setInt32("width", mWidth);
-    notify->setInt32("height", mHeight);
-
-    notify->post();
-}
-
 void MediaFilter::requestFillEmptyInput() {
     if (mPortEOS[kPortIndexInput]) {
         return;
@@ -459,11 +400,8 @@
         return;
     }
 
-    sp<AMessage> notify = mNotify->dup();
-    notify->setInt32("what", kWhatComponentAllocated);
     // HACK - need "OMX.google" to use MediaCodec's software renderer
-    notify->setString("componentName", "OMX.google.MediaFilter");
-    notify->post();
+    mCallback->onComponentAllocated("OMX.google.MediaFilter");
     mState = INITIALIZED;
     ALOGV("Handled kWhatAllocateComponent.");
 }
@@ -540,16 +478,9 @@
     mOutputFormat->setInt32("width", mWidth);
     mOutputFormat->setInt32("height", mHeight);
 
-    sp<AMessage> notify = mNotify->dup();
-    notify->setInt32("what", kWhatComponentConfigured);
-    notify->setString("componentName", "MediaFilter");
-    notify->setMessage("input-format", mInputFormat);
-    notify->setMessage("output-format", mOutputFormat);
-    notify->post();
+    mCallback->onComponentConfigured(mInputFormat, mOutputFormat);
     mState = CONFIGURED;
     ALOGV("Handled kWhatConfigureComponent.");
-
-    sendFormatChange();
 }
 
 void MediaFilter::onStart() {
@@ -559,6 +490,8 @@
 
     allocateBuffersOnPort(kPortIndexOutput);
 
+    mCallback->onStartCompleted();
+
     status_t err = mFilter->start();
     if (err != (status_t)OK) {
         ALOGE("Failed to start filter component, err %d", err);
@@ -597,11 +530,12 @@
     CHECK_EQ(info->mStatus, BufferInfo::OWNED_BY_UPSTREAM);
     info->mStatus = BufferInfo::OWNED_BY_US;
 
-    sp<ABuffer> buffer;
+    sp<MediaCodecBuffer> buffer;
     int32_t err = OK;
     bool eos = false;
 
-    if (!msg->findBuffer("buffer", &buffer)) {
+    sp<RefBase> obj;
+    if (!msg->findObject("buffer", &obj)) {
         // these are unfilled buffers returned by client
         CHECK(msg->findInt32("err", &err));
 
@@ -616,6 +550,8 @@
         }
 
         buffer.clear();
+    } else {
+        buffer = static_cast<MediaCodecBuffer *>(obj.get());
     }
 
     int32_t isCSD;
@@ -688,9 +624,11 @@
         mState = INITIALIZED;
     }
 
-    sp<AMessage> notify = mNotify->dup();
-    notify->setInt32("what", CodecBase::kWhatShutdownCompleted);
-    notify->post();
+    if (keepComponentAllocated) {
+        mCallback->onStopCompleted();
+    } else {
+        mCallback->onReleaseCompleted();
+    }
 }
 
 void MediaFilter::onFlush() {
@@ -712,9 +650,7 @@
     mPortEOS[kPortIndexOutput] = false;
     mInputEOSResult = OK;
 
-    sp<AMessage> notify = mNotify->dup();
-    notify->setInt32("what", CodecBase::kWhatFlushCompleted);
-    notify->post();
+    mCallback->onFlushCompleted();
     ALOGV("Posted kWhatFlushCompleted");
 
     // MediaCodec returns all input buffers after flush, so in
@@ -746,13 +682,10 @@
         return;
     }
 
-    sp<AMessage> reply = mNotify->dup();
-    reply->setInt32("what", CodecBase::kWhatInputSurfaceCreated);
-    reply->setObject(
-            "input-surface",
+    mCallback->onInputSurfaceCreated(
+            nullptr, nullptr,
             new BufferProducerWrapper(
                     mGraphicBufferListener->getIGraphicBufferProducer()));
-    reply->post();
 }
 
 void MediaFilter::onInputFrameAvailable() {
@@ -768,7 +701,8 @@
     // TODO: check input format and convert only if necessary
     // copy RGBA graphic buffer into temporary ARGB input buffer
     BufferInfo *inputInfo = new BufferInfo;
-    inputInfo->mData = new ABuffer(buf->getWidth() * buf->getHeight() * 4);
+    inputInfo->mData = new MediaCodecBuffer(
+            mInputFormat, new ABuffer(buf->getWidth() * buf->getHeight() * 4));
     ALOGV("Copying surface data into temp buffer.");
     convertRGBAToARGB(
             (uint8_t*)bufPtr, buf->getWidth(), buf->getHeight(),
@@ -813,9 +747,7 @@
     }
 
     mPortEOS[kPortIndexOutput] = true;
-    sp<AMessage> notify = mNotify->dup();
-    notify->setInt32("what", CodecBase::kWhatSignaledInputEOS);
-    notify->post();
+    mCallback->onSignaledInputEOS(OK);
 
     ALOGV("Output stream saw EOS.");
 }
diff --git a/media/libstagefright/filters/RSFilter.cpp b/media/libstagefright/filters/RSFilter.cpp
index b569945..225a375 100644
--- a/media/libstagefright/filters/RSFilter.cpp
+++ b/media/libstagefright/filters/RSFilter.cpp
@@ -19,7 +19,7 @@
 
 #include <utils/Log.h>
 
-#include <media/stagefright/foundation/ABuffer.h>
+#include <media/MediaCodecBuffer.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/AMessage.h>
 
@@ -85,7 +85,7 @@
 }
 
 status_t RSFilter::processBuffers(
-        const sp<ABuffer> &srcBuffer, const sp<ABuffer> &outBuffer) {
+        const sp<MediaCodecBuffer> &srcBuffer, const sp<MediaCodecBuffer> &outBuffer) {
     mAllocIn->copy1DRangeFrom(0, mWidth * mHeight, srcBuffer->data());
     mCallback->processBuffers(mAllocIn.get(), mAllocOut.get());
     mAllocOut->copy1DRangeTo(0, mWidth * mHeight, outBuffer->data());
diff --git a/media/libstagefright/filters/RSFilter.h b/media/libstagefright/filters/RSFilter.h
index c5b5074..3326284 100644
--- a/media/libstagefright/filters/RSFilter.h
+++ b/media/libstagefright/filters/RSFilter.h
@@ -35,7 +35,7 @@
     virtual void reset();
     virtual status_t setParameters(const sp<AMessage> &msg);
     virtual status_t processBuffers(
-            const sp<ABuffer> &srcBuffer, const sp<ABuffer> &outBuffer);
+            const sp<MediaCodecBuffer> &srcBuffer, const sp<MediaCodecBuffer> &outBuffer);
 
 protected:
     virtual ~RSFilter();
diff --git a/media/libstagefright/filters/SaturationFilter.cpp b/media/libstagefright/filters/SaturationFilter.cpp
index ba5f75a..0a1df05 100644
--- a/media/libstagefright/filters/SaturationFilter.cpp
+++ b/media/libstagefright/filters/SaturationFilter.cpp
@@ -19,7 +19,7 @@
 
 #include <utils/Log.h>
 
-#include <media/stagefright/foundation/ABuffer.h>
+#include <media/MediaCodecBuffer.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/AMessage.h>
 
@@ -88,7 +88,7 @@
 }
 
 status_t SaturationFilter::processBuffers(
-        const sp<ABuffer> &srcBuffer, const sp<ABuffer> &outBuffer) {
+        const sp<MediaCodecBuffer> &srcBuffer, const sp<MediaCodecBuffer> &outBuffer) {
     mAllocIn->copy1DRangeFrom(0, mWidth * mHeight, srcBuffer->data());
     mScript->forEach_root(mAllocIn, mAllocOut);
     mAllocOut->copy1DRangeTo(0, mWidth * mHeight, outBuffer->data());
diff --git a/media/libstagefright/filters/SaturationFilter.h b/media/libstagefright/filters/SaturationFilter.h
index 0545021..317e469 100644
--- a/media/libstagefright/filters/SaturationFilter.h
+++ b/media/libstagefright/filters/SaturationFilter.h
@@ -33,7 +33,7 @@
     virtual void reset();
     virtual status_t setParameters(const sp<AMessage> &msg);
     virtual status_t processBuffers(
-            const sp<ABuffer> &srcBuffer, const sp<ABuffer> &outBuffer);
+            const sp<MediaCodecBuffer> &srcBuffer, const sp<MediaCodecBuffer> &outBuffer);
 
 protected:
     virtual ~SaturationFilter() {};
diff --git a/media/libstagefright/filters/SimpleFilter.h b/media/libstagefright/filters/SimpleFilter.h
index 4cd37ef..a3c2d76 100644
--- a/media/libstagefright/filters/SimpleFilter.h
+++ b/media/libstagefright/filters/SimpleFilter.h
@@ -21,11 +21,11 @@
 #include <utils/Errors.h>
 #include <utils/RefBase.h>
 
-struct ABuffer;
-struct AMessage;
-
 namespace android {
 
+struct AMessage;
+class MediaCodecBuffer;
+
 struct SimpleFilter : public RefBase {
 public:
     SimpleFilter() : mWidth(0), mHeight(0), mStride(0), mSliceHeight(0),
@@ -37,7 +37,7 @@
     virtual void reset() = 0;
     virtual status_t setParameters(const sp<AMessage> &msg) = 0;
     virtual status_t processBuffers(
-            const sp<ABuffer> &srcBuffer, const sp<ABuffer> &outBuffer) = 0;
+            const sp<MediaCodecBuffer> &srcBuffer, const sp<MediaCodecBuffer> &outBuffer) = 0;
 
 protected:
     int32_t mWidth, mHeight;
diff --git a/media/libstagefright/filters/ZeroFilter.cpp b/media/libstagefright/filters/ZeroFilter.cpp
index 3f1243c..74b94b7 100644
--- a/media/libstagefright/filters/ZeroFilter.cpp
+++ b/media/libstagefright/filters/ZeroFilter.cpp
@@ -17,7 +17,7 @@
 //#define LOG_NDEBUG 0
 #define LOG_TAG "ZeroFilter"
 
-#include <media/stagefright/foundation/ABuffer.h>
+#include <media/MediaCodecBuffer.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/AMessage.h>
 
@@ -38,7 +38,7 @@
 }
 
 status_t ZeroFilter::processBuffers(
-        const sp<ABuffer> &srcBuffer, const sp<ABuffer> &outBuffer) {
+        const sp<MediaCodecBuffer> &srcBuffer, const sp<MediaCodecBuffer> &outBuffer) {
     // assuming identical input & output buffers, since we're a copy filter
     if (mInvertData) {
         uint32_t* src = (uint32_t*)srcBuffer->data();
diff --git a/media/libstagefright/filters/ZeroFilter.h b/media/libstagefright/filters/ZeroFilter.h
index bd34dfb..f941cc8 100644
--- a/media/libstagefright/filters/ZeroFilter.h
+++ b/media/libstagefright/filters/ZeroFilter.h
@@ -29,7 +29,7 @@
     virtual void reset() {};
     virtual status_t setParameters(const sp<AMessage> &msg);
     virtual status_t processBuffers(
-            const sp<ABuffer> &srcBuffer, const sp<ABuffer> &outBuffer);
+            const sp<MediaCodecBuffer> &srcBuffer, const sp<MediaCodecBuffer> &outBuffer);
 
 protected:
     virtual ~ZeroFilter() {};
diff --git a/media/libstagefright/foundation/ALooperRoster.cpp b/media/libstagefright/foundation/ALooperRoster.cpp
index 5f11fb6..8a7c3eb 100644
--- a/media/libstagefright/foundation/ALooperRoster.cpp
+++ b/media/libstagefright/foundation/ALooperRoster.cpp
@@ -100,7 +100,7 @@
     }
 }
 
-static void makeFourCC(uint32_t fourcc, char *s) {
+static void makeFourCC(uint32_t fourcc, char *s, size_t bufsz) {
     s[0] = (fourcc >> 24) & 0xff;
     if (s[0]) {
         s[1] = (fourcc >> 16) & 0xff;
@@ -108,7 +108,7 @@
         s[3] = fourcc & 0xff;
         s[4] = 0;
     } else {
-        sprintf(s, "%u", fourcc);
+        snprintf(s, bufsz, "%u", fourcc);
     }
 }
 
@@ -146,7 +146,7 @@
                 if (verboseStats) {
                     for (size_t j = 0; j < handler->mMessages.size(); j++) {
                         char fourcc[15];
-                        makeFourCC(handler->mMessages.keyAt(j), fourcc);
+                        makeFourCC(handler->mMessages.keyAt(j), fourcc, sizeof(fourcc));
                         s.appendFormat("\n    %s: %u",
                                 fourcc,
                                 handler->mMessages.valueAt(j));
diff --git a/media/libstagefright/foundation/AString.cpp b/media/libstagefright/foundation/AString.cpp
index b167543..04fac19 100644
--- a/media/libstagefright/foundation/AString.cpp
+++ b/media/libstagefright/foundation/AString.cpp
@@ -14,6 +14,9 @@
  * limitations under the License.
  */
 
+#define LOG_TAG "AString"
+#include <utils/Log.h>
+
 #include <ctype.h>
 #include <stdarg.h>
 #include <stdio.h>
@@ -40,14 +43,24 @@
     : mData(NULL),
       mSize(0),
       mAllocSize(1) {
-    setTo(s);
+    if (!s) {
+        ALOGW("ctor got NULL, using empty string instead");
+        clear();
+    } else {
+        setTo(s);
+    }
 }
 
 AString::AString(const char *s, size_t size)
     : mData(NULL),
       mSize(0),
       mAllocSize(1) {
-    setTo(s, size);
+    if (!s) {
+        ALOGW("ctor got NULL, using empty string instead");
+        clear();
+    } else {
+        setTo(s, size);
+    }
 }
 
 AString::AString(const String8 &from)
diff --git a/media/libstagefright/foundation/Android.bp b/media/libstagefright/foundation/Android.bp
index f7bd3f2..3548f96 100644
--- a/media/libstagefright/foundation/Android.bp
+++ b/media/libstagefright/foundation/Android.bp
@@ -26,15 +26,18 @@
 
     include_dirs: ["frameworks/av/include/media/stagefright/foundation"],
 
+    export_include_dirs: ["include"],
+
     shared_libs: [
         "libbinder",
         "libutils",
+        "libui",
         "libcutils",
         "liblog",
         "libpowermanager",
     ],
 
-    export_shared_lib_headers: ["libbinder"],
+    export_shared_lib_headers: ["libbinder", "libui"],
 
     cflags: [
         "-Wno-multichar",
diff --git a/media/libstagefright/foundation/ColorUtils.cpp b/media/libstagefright/foundation/ColorUtils.cpp
index d7439b2..88a8351 100644
--- a/media/libstagefright/foundation/ColorUtils.cpp
+++ b/media/libstagefright/foundation/ColorUtils.cpp
@@ -343,6 +343,23 @@
 }
 
 // static
+ColorAspects ColorUtils::unpackToColorAspects(uint32_t packed) {
+    ColorAspects aspects;
+    aspects.mRange        = (ColorAspects::Range)((packed >> 24) & 0xFF);
+    aspects.mPrimaries    = (ColorAspects::Primaries)((packed >> 16) & 0xFF);
+    aspects.mMatrixCoeffs = (ColorAspects::MatrixCoeffs)((packed >> 8) & 0xFF);
+    aspects.mTransfer     = (ColorAspects::Transfer)(packed & 0xFF);
+
+    return aspects;
+}
+
+// static
+uint32_t ColorUtils::packToU32(const ColorAspects &aspects) {
+    return (aspects.mRange << 24) | (aspects.mPrimaries << 16)
+            | (aspects.mMatrixCoeffs << 8) | aspects.mTransfer;
+}
+
+// static
 void ColorUtils::setDefaultCodecColorAspectsIfNeeded(
         ColorAspects &aspects, int32_t width, int32_t height) {
     ColorAspects::MatrixCoeffs coeffs;
diff --git a/media/libstagefright/foundation/hexdump.cpp b/media/libstagefright/foundation/hexdump.cpp
index a44d832..872c5f3 100644
--- a/media/libstagefright/foundation/hexdump.cpp
+++ b/media/libstagefright/foundation/hexdump.cpp
@@ -49,7 +49,7 @@
         appendIndent(&line, indent);
 
         char tmp[32];
-        sprintf(tmp, "%08lx:  ", (unsigned long)offset);
+        snprintf(tmp, sizeof(tmp), "%08lx:  ", (unsigned long)offset);
 
         line.append(tmp);
 
@@ -60,7 +60,7 @@
             if (offset + i >= size) {
                 line.append("   ");
             } else {
-                sprintf(tmp, "%02x ", data[offset + i]);
+                snprintf(tmp, sizeof(tmp), "%02x ", data[offset + i]);
                 line.append(tmp);
             }
         }
diff --git a/media/libstagefright/foundation/include b/media/libstagefright/foundation/include
new file mode 120000
index 0000000..3a1af68
--- /dev/null
+++ b/media/libstagefright/foundation/include
@@ -0,0 +1 @@
+../include/
\ No newline at end of file
diff --git a/media/libstagefright/foundation/tests/AData_test.cpp b/media/libstagefright/foundation/tests/AData_test.cpp
new file mode 100644
index 0000000..f014c25
--- /dev/null
+++ b/media/libstagefright/foundation/tests/AData_test.cpp
@@ -0,0 +1,981 @@
+/*
+ * Copyright 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "AData_test"
+
+#include <gtest/gtest.h>
+#include <utils/RefBase.h>
+//#include <utils/StrongPointer.h>
+
+#include <media/stagefright/foundation/AData.h>
+#include <media/stagefright/foundation/ABuffer.h>
+
+namespace android {
+
+class ADataTest : public ::testing::Test {
+};
+
+// ============ AUnion
+
+struct Events {
+    int dtor;
+    int ctor_empty;
+    int ctor_copy;
+};
+
+struct EventCounter : public RefBase {
+    EventCounter(int *counter, int magic=1234) : mCounter(counter), mMagic(magic) { }
+    virtual ~EventCounter() { ++*mCounter; mMagic = 0; }
+    int magic() const { return mMagic; }
+private:
+    int *mCounter;
+    int mMagic;
+};
+
+struct DerivedCounter : public EventCounter {
+    DerivedCounter(int *counter, int magic=1234) : EventCounter(counter, magic) { }
+};
+
+TEST_F(ADataTest, AUnion_Test) {
+    AUnion<int, const char *, char> u;
+    u.emplace<int>(4);
+    u.del<int>();
+    EXPECT_EQ(4, u.get<int>()); // verify that del<> is a no-op for trivial types, such as int.
+                                // specifically, verify that it does not clear the objet memory
+
+    u.emplace<const char *>("hello");
+    EXPECT_STREQ("hello", u.get<const char *>());
+    u.del<const char *>();
+
+    // u.del<char *>();
+    // u.emplace<const int>(4);
+    u.emplace<void>();
+    u.del<void>();
+
+    u.emplace<int>(~0);
+    u.del<int>();
+    EXPECT_EQ(~0, u.get<int>());
+    u.emplace<char>(0x15);
+    // verify that rest of memory after char is cleared upon construction
+    EXPECT_EQ(0, memcmp((char *)(&u) + sizeof(char), "\0\0\0", 3));
+    EXPECT_EQ(0x15, u.get<char>());
+    u.del<char>();
+
+    AUnion<EventCounter, EventCounter *> d;
+    int destructions = 0;
+
+    d.emplace<EventCounter>(&destructions);
+    d.del<EventCounter>();
+    EXPECT_EQ(1, destructions);
+
+    EventCounter *ctr = new EventCounter(&destructions);
+    d.emplace<EventCounter *>(ctr);
+    d.del<EventCounter *>();
+    EXPECT_EQ(1, destructions);
+
+    delete ctr;
+    EXPECT_EQ(2, destructions);
+
+    AUnion<std::shared_ptr<EventCounter>, std::unique_ptr<EventCounter>> md;
+    md.emplace<std::shared_ptr<EventCounter>>(new EventCounter(&destructions));
+    std::shared_ptr<EventCounter> copy(md.get<std::shared_ptr<EventCounter>>());
+    std::weak_ptr<EventCounter> weak(copy);
+    EXPECT_EQ(2, destructions);
+
+    copy.reset();
+    EXPECT_EQ(2, destructions);
+    md.del<std::shared_ptr<EventCounter>>();
+    EXPECT_EQ(3, destructions);
+    EXPECT_TRUE(weak.expired());
+
+    md.emplace<std::unique_ptr<EventCounter>>(new EventCounter(&destructions));
+    EXPECT_EQ(3, destructions);
+
+    std::unique_ptr<EventCounter> unique = std::move(md.get<std::unique_ptr<EventCounter>>());
+    EXPECT_EQ(3, destructions);
+    EXPECT_FALSE((bool)md.get<std::unique_ptr<EventCounter>>());
+
+    md.del<std::unique_ptr<EventCounter>>();
+    EXPECT_EQ(3, destructions);
+    md.emplace<std::unique_ptr<EventCounter>>(std::move(unique));
+    EXPECT_TRUE((bool)md.get<std::unique_ptr<EventCounter>>());
+    EXPECT_EQ(3, destructions);
+
+    md.del<std::unique_ptr<EventCounter>>();
+    EXPECT_EQ(4, destructions);
+}
+
+TEST_F(ADataTest, AData_StaticTest) {
+    using namespace std;
+
+    static_assert(is_copy_assignable<shared_ptr<EventCounter>>::value, "");
+    static_assert(is_copy_constructible<shared_ptr<EventCounter>>::value, "");
+    static_assert(is_default_constructible<shared_ptr<EventCounter>>::value, "");
+
+    static_assert(is_copy_assignable<weak_ptr<DerivedCounter>>::value, "");
+    static_assert(is_copy_constructible<weak_ptr<DerivedCounter>>::value, "");
+    static_assert(is_default_constructible<weak_ptr<DerivedCounter>>::value, "");
+
+    static_assert(!is_copy_assignable<unique_ptr<DerivedCounter>>::value, "");
+    static_assert(!is_copy_constructible<unique_ptr<DerivedCounter>>::value, "");
+    static_assert(is_default_constructible<unique_ptr<DerivedCounter>>::value, "");
+
+    static_assert(is_copy_assignable<sp<EventCounter>>::value, "");
+    static_assert(is_copy_constructible<sp<EventCounter>>::value, "");
+    static_assert(is_default_constructible<sp<EventCounter>>::value, "");
+
+    static_assert(is_copy_assignable<wp<EventCounter>>::value, "");
+    static_assert(is_copy_constructible<wp<EventCounter>>::value, "");
+    static_assert(is_default_constructible<wp<EventCounter>>::value, "");
+
+    static_assert(is_convertible<shared_ptr<DerivedCounter>, shared_ptr<EventCounter>>::value, "");
+    static_assert(!is_convertible<shared_ptr<EventCounter>, shared_ptr<DerivedCounter>>::value, "");
+
+    static_assert(is_convertible<unique_ptr<DerivedCounter>, unique_ptr<EventCounter>>::value, "");
+    static_assert(!is_convertible<unique_ptr<EventCounter>, unique_ptr<DerivedCounter>>::value, "");
+
+    static_assert(is_convertible<unique_ptr<DerivedCounter>, shared_ptr<EventCounter>>::value, "");
+    static_assert(!is_convertible<shared_ptr<DerivedCounter>, unique_ptr<EventCounter>>::value, "");
+
+    static_assert(is_convertible<weak_ptr<DerivedCounter>, weak_ptr<EventCounter>>::value, "");
+    static_assert(!is_convertible<weak_ptr<EventCounter>, weak_ptr<DerivedCounter>>::value, "");
+
+    static_assert(is_convertible<shared_ptr<DerivedCounter>, weak_ptr<EventCounter>>::value, "");
+    static_assert(!is_convertible<weak_ptr<DerivedCounter>, shared_ptr<EventCounter>>::value, "");
+
+    static_assert(is_convertible<sp<EventCounter>, sp<RefBase>>::value, "");
+    static_assert(is_convertible<sp<RefBase>, sp<EventCounter>>::value, "YES");
+
+    static_assert(is_convertible<wp<EventCounter>, wp<RefBase>>::value, "");
+    static_assert(is_convertible<wp<RefBase>, wp<EventCounter>>::value, "YES");
+
+    static_assert(is_convertible<sp<EventCounter>, wp<RefBase>>::value, "");
+    static_assert(!is_convertible<wp<EventCounter>, sp<RefBase>>::value, "");
+}
+
+TEST_F(ADataTest, AData_SampleTest) {
+    AData<int, float>::Basic data;
+    int i = 1;
+    float f = 7.0f;
+
+    data.set(5);
+    EXPECT_TRUE(data.find(&i));
+    EXPECT_FALSE(data.find(&f));
+    EXPECT_EQ(i, 5);
+
+    data.set(6.0f);
+    EXPECT_FALSE(data.find(&i));
+    EXPECT_TRUE(data.find(&f));
+    EXPECT_EQ(f, 6.0f);
+
+    AData<int, sp<RefBase>>::RelaxedBasic objdata; // relaxed type support
+    sp<ABuffer> buf = new ABuffer(16), buf2;
+    sp<RefBase> obj;
+
+    objdata.set(buf);
+    EXPECT_TRUE(objdata.find(&buf2));
+    EXPECT_EQ(buf, buf2);
+    EXPECT_FALSE(objdata.find(&i));
+    EXPECT_TRUE(objdata.find(&obj));
+    EXPECT_TRUE(obj == buf);
+
+    obj = buf;
+    objdata.set(obj); // storing as sp<RefBase>
+    EXPECT_FALSE(objdata.find(&buf2));  // not stored as ABuffer(!)
+    EXPECT_TRUE(objdata.find(&obj));
+}
+
+struct SampleTypeFlagger {
+    typedef unsigned type;
+    enum Flags : type {
+        kEmpty = 100,
+        kInt,
+        kConstCharPtr,
+        kEventCounter,
+        kEventCounterPointer,
+        kEventCounterSharedPointer,
+        kEventCounterUniquePointer,
+        kEventCounterWeakPointer,
+        kEventCounterSP,
+        kEventCounterWP,
+    };
+    constexpr static type mask = ~Flags(0);
+    constexpr static type flagFor(void*) { return kEmpty; }
+    constexpr static type flagFor(int*) { return kInt; }
+    constexpr static type flagFor(const char**) { return kConstCharPtr; }
+    constexpr static type flagFor(EventCounter*) { return kEventCounter; }
+    constexpr static type flagFor(EventCounter**) { return kEventCounterPointer; }
+    constexpr static
+    type flagFor(std::shared_ptr<EventCounter>*) { return kEventCounterSharedPointer; }
+    constexpr static
+    type flagFor(std::unique_ptr<EventCounter>*) { return kEventCounterUniquePointer; }
+    constexpr static type flagFor(std::weak_ptr<EventCounter>*) { return kEventCounterWeakPointer; }
+    constexpr static type flagFor(sp<EventCounter>*) { return kEventCounterSP; }
+    constexpr static type flagFor(wp<EventCounter>*) { return kEventCounterWP; }
+    constexpr static bool canDeleteAs(type object, type del) { return del == object; }
+    template <typename T> struct store { typedef T as_type; };
+};
+
+TEST_F(ADataTest, AData_SimpleTest) {
+    int _int = 0;
+    const char *_constCharPtr = NULL;
+    AData<int, const char *>::Custom<SampleTypeFlagger> u;
+    EXPECT_FALSE(u.used());
+    EXPECT_FALSE(u.find<int>(&_int));
+    EXPECT_FALSE(u.find<const char *>(&_constCharPtr));
+
+    EXPECT_TRUE(u.set<int>(4));
+    EXPECT_TRUE(u.used());
+    EXPECT_TRUE(u.find<int>(&_int));
+    EXPECT_EQ(4, _int);
+    EXPECT_FALSE(u.find<const char *>(&_constCharPtr));
+    EXPECT_EQ(NULL, _constCharPtr);
+
+    EXPECT_TRUE(u.clear());
+    EXPECT_FALSE(u.used());
+    EXPECT_FALSE(u.find<int>(&_int));
+    EXPECT_FALSE(u.find<const char *>(&_constCharPtr));
+
+    EXPECT_TRUE(u.set<int>(5));
+    EXPECT_TRUE(u.set<int>(6));
+    EXPECT_TRUE(u.find<int>(&_int));
+    EXPECT_EQ(6, _int);
+
+    EXPECT_TRUE(u.set<const char *>("hello"));
+    EXPECT_TRUE(u.used());
+    EXPECT_FALSE(u.find<int>(&_int));
+    EXPECT_TRUE(u.find<const char *>(&_constCharPtr));
+    EXPECT_STREQ("hello", _constCharPtr);
+
+    EXPECT_TRUE(u.clear());
+    EXPECT_FALSE(u.used());
+    EXPECT_FALSE(u.find<int>(&_int));
+    EXPECT_FALSE(u.find<const char *>(&_constCharPtr));
+
+    EXPECT_TRUE(u.set<const char *>("world"));
+    EXPECT_TRUE(u.set<const char *>("!!"));
+    EXPECT_TRUE(u.used());
+    EXPECT_FALSE(u.find<int>(&_int));
+    EXPECT_TRUE(u.find<const char *>(&_constCharPtr));
+    EXPECT_STREQ("!!", _constCharPtr);
+
+    EXPECT_FALSE(u.find(&_int));
+    EXPECT_TRUE(u.find(&_constCharPtr));
+}
+
+void set(std::unique_ptr<int> &dst, std::unique_ptr<int> &&src) {
+    dst = std::move(src);
+}
+
+void set(std::unique_ptr<int> &dst, std::unique_ptr<int> &src) {
+    dst = std::move(src);
+}
+
+TEST_F(ADataTest, AData_CopyMoveTest) {
+    int destructions = 0;
+    int _int = 0;
+    std::shared_ptr<EventCounter> _shared;
+    std::unique_ptr<EventCounter> _unique;
+    std::weak_ptr<EventCounter> _weak;
+    const std::shared_ptr<EventCounter> _constShared(new EventCounter(&destructions));
+    const std::unique_ptr<EventCounter> _constUnique = nullptr;
+
+    AData<int, std::weak_ptr<EventCounter>, std::shared_ptr<EventCounter>,
+            std::unique_ptr<EventCounter>>::Basic u;
+
+    // test that data is empty
+    EXPECT_FALSE(u.used());
+    EXPECT_FALSE(u.find(&_int));
+    EXPECT_FALSE(u.find(&_shared));
+    EXPECT_FALSE(u.remove(&_unique));
+    EXPECT_FALSE(u.find(&_weak));
+
+    // test that integer can be stored and read
+    EXPECT_TRUE(u.set<int>(1));
+    EXPECT_TRUE(u.used());
+    EXPECT_TRUE(u.find(&_int));
+    EXPECT_EQ(1, _int);
+    EXPECT_FALSE(u.find(&_shared));
+    EXPECT_FALSE(u.remove(&_unique));
+    EXPECT_FALSE(u.find(&_weak));
+
+    // test that movable type (unique_ptr) can be moved in and read out, and it moves
+    _unique = std::unique_ptr<EventCounter>(new EventCounter(&destructions, 123));
+    EXPECT_TRUE(u.set(std::move(_unique)));
+    EXPECT_FALSE((bool)_unique);
+    EXPECT_TRUE(u.used());
+    EXPECT_FALSE(u.find(&_int));
+    EXPECT_FALSE(u.find(&_shared));
+    EXPECT_FALSE(u.find(&_weak));
+    EXPECT_TRUE(u.remove(&_unique));
+    EXPECT_TRUE((bool)_unique);
+    if (_unique) {
+        EXPECT_EQ(123, _unique->magic());
+    }
+
+    // the unique value should have been removed but still accessible as nullptr
+    EXPECT_TRUE(u.remove(&_unique));
+    EXPECT_FALSE((bool)_unique);
+    EXPECT_EQ(1, destructions);
+
+    // test that movable-only type (unique_ptr) can be stored without moving (and is still
+    // moved)
+    _unique = std::unique_ptr<EventCounter>(new EventCounter(&destructions, 321));
+    EXPECT_TRUE(u.set(std::move(_unique)));
+    EXPECT_FALSE((bool)_unique);
+    EXPECT_TRUE(u.set(std::unique_ptr<EventCounter>(new EventCounter(&destructions, 1234))));
+    EXPECT_EQ(2, destructions);
+    EXPECT_TRUE(u.remove(&_unique));
+    EXPECT_TRUE((bool)_unique);
+    if (_unique) {
+        EXPECT_EQ(1234, _unique->magic());
+    }
+    EXPECT_TRUE(u.set(std::move(_unique)));
+    EXPECT_EQ(2, destructions);
+    EXPECT_TRUE(u.clear());
+    EXPECT_EQ(3, destructions);
+    EXPECT_FALSE(u.find(&_int));
+    EXPECT_FALSE(u.find(&_shared));
+    EXPECT_FALSE(u.remove(&_unique));
+    EXPECT_FALSE(u.find(&_weak));
+
+    // u.set(_constUnique);
+
+    // test that copiable & movable type (shared_ptr) is copied unless explicitly moved.
+    _shared = std::make_shared<EventCounter>(&destructions, 234);
+    EXPECT_EQ(1L, _shared.use_count());
+    EXPECT_TRUE(u.set(_shared));
+    EXPECT_TRUE((bool)_shared);
+    if (_shared) {
+        EXPECT_EQ(234, _shared->magic());
+    }
+
+    EXPECT_EQ(2L, _shared.use_count());
+    EXPECT_FALSE(u.find(&_int));
+    EXPECT_FALSE(u.remove(&_unique));
+    EXPECT_FALSE(u.find(&_weak));
+    EXPECT_TRUE(u.find(&_shared));
+    EXPECT_EQ(2L, _shared.use_count());
+    EXPECT_TRUE((bool)_shared);
+    if (_shared) {
+        EXPECT_EQ(234, _shared->magic());
+    }
+
+    // explicitly move in shared_ptr
+    EXPECT_TRUE(u.set(std::move(_shared)));
+    EXPECT_EQ(0, _shared.use_count()); // shared should be nullptr
+    EXPECT_FALSE((bool)_shared);
+    EXPECT_TRUE(u.find(&_shared));
+    EXPECT_EQ(2L, _shared.use_count()); // now both u and _shared contains the object
+    EXPECT_TRUE((bool)_shared);
+    if (_shared) {
+        EXPECT_EQ(234, _shared->magic());
+    }
+    EXPECT_FALSE(u.find(&_int));
+    EXPECT_FALSE(u.remove(&_unique));
+    EXPECT_FALSE(u.find(&_weak));
+    EXPECT_TRUE(u.find(&_shared));
+    EXPECT_EQ(2L, _shared.use_count()); // still both u and _shared contains the object
+
+    EXPECT_TRUE(u.clear());
+    EXPECT_TRUE(_shared.unique()); // now only _shared contains the object
+
+    EXPECT_TRUE(u.set(_constShared));
+    EXPECT_EQ(2L, _constShared.use_count()); // even though it is const, we can add a use count
+    EXPECT_TRUE(u.find(&_shared));
+    EXPECT_EQ(3L, _shared.use_count()); // now u, _shared and _constShared contains the const object
+    EXPECT_TRUE((bool)_shared);
+    if (_shared) {
+        EXPECT_EQ(1234, _shared->magic());
+    }
+
+    // test that weak pointer can be copied in (support for moving is from C++14 only)
+    _weak = _shared;
+    EXPECT_EQ(_weak.use_count(), _shared.use_count());
+    EXPECT_TRUE(u.set(_weak));
+
+    _weak.reset();
+    EXPECT_EQ(_weak.use_count(), 0);
+
+    EXPECT_FALSE(u.find(&_int));
+    EXPECT_FALSE(u.remove(&_unique));
+    EXPECT_FALSE(u.find(&_shared));
+    EXPECT_TRUE(u.find(&_weak));
+    EXPECT_EQ(_weak.use_count(), _shared.use_count());
+    EXPECT_EQ(_weak.lock(), _shared);
+
+    // we can remove a weak pointer multiple times
+    _weak.reset();
+    EXPECT_TRUE(u.find(&_weak));
+    EXPECT_EQ(_weak.use_count(), _shared.use_count());
+    EXPECT_EQ(_weak.lock(), _shared);
+    EXPECT_TRUE(u.clear());
+    EXPECT_FALSE(u.find(&_int));
+    EXPECT_FALSE(u.remove(&_unique));
+    EXPECT_FALSE(u.find(&_shared));
+    EXPECT_FALSE(u.find(&_weak));
+};
+
+TEST_F(ADataTest, AData_RelaxedCopyMoveTest) {
+    int destructions = 0;
+    int _int = 0;
+    std::shared_ptr<DerivedCounter> _shared;
+    std::unique_ptr<DerivedCounter> _unique, _unique2;
+    std::weak_ptr<DerivedCounter> _weak;
+    std::shared_ptr<EventCounter> _shared_base;
+    std::unique_ptr<EventCounter> _unique_base;
+    std::weak_ptr<EventCounter> _weak_base;
+    const std::shared_ptr<DerivedCounter> _constShared(new DerivedCounter(&destructions));
+    const std::unique_ptr<DerivedCounter> _constUnique = nullptr;
+
+    AData<int, std::unique_ptr<EventCounter>, std::shared_ptr<EventCounter>,
+            std::weak_ptr<EventCounter>>::RelaxedBasic u;
+
+    // test that data is empty
+    EXPECT_FALSE(u.used());
+    EXPECT_FALSE(u.find(&_int));
+    EXPECT_FALSE(u.find(&_shared));
+    EXPECT_FALSE(u.remove(&_unique));
+    EXPECT_FALSE(u.find(&_weak));
+    EXPECT_FALSE(u.find(&_shared_base));
+    EXPECT_FALSE(u.remove(&_unique_base));
+    EXPECT_FALSE(u.find(&_weak_base));
+
+    // test that integer can be stored and read
+    EXPECT_TRUE(u.set<int>(1));
+    EXPECT_TRUE(u.used());
+    EXPECT_TRUE(u.find(&_int));
+    EXPECT_EQ(1, _int);
+    EXPECT_FALSE(u.find(&_shared));
+    EXPECT_FALSE(u.remove(&_unique));
+    EXPECT_FALSE(u.find(&_weak));
+    EXPECT_FALSE(u.find(&_shared_base));
+    EXPECT_FALSE(u.remove(&_unique_base));
+    EXPECT_FALSE(u.find(&_weak_base));
+
+    // test that movable type (unique_ptr) can be moved in and read out, and it moves
+    _unique = std::unique_ptr<DerivedCounter>(new DerivedCounter(&destructions, 123));
+    EXPECT_TRUE(u.set(std::move(_unique)));
+    EXPECT_FALSE((bool)_unique);
+    EXPECT_TRUE(u.used());
+    EXPECT_FALSE(u.find(&_int));
+    EXPECT_FALSE(u.find(&_shared));
+    EXPECT_FALSE(u.find(&_weak));
+    EXPECT_TRUE(u.remove(&_unique));
+    EXPECT_TRUE((bool)_unique);
+    if (_unique) {
+        EXPECT_EQ(123, _unique->magic());
+    }
+
+    // the unique value should have been removed but still accessible as nullptr
+    EXPECT_TRUE(u.remove(&_unique));
+    EXPECT_FALSE((bool)_unique);
+    EXPECT_EQ(1, destructions);
+
+    EXPECT_FALSE(u.find(&_shared_base));
+    EXPECT_TRUE(u.remove(&_unique_base));
+    EXPECT_FALSE((bool)_unique_base);
+    EXPECT_FALSE(u.find(&_weak_base));
+
+    // test that movable-only type (unique_ptr) can be stored without moving (and is still
+    // moved)
+    _unique = std::unique_ptr<DerivedCounter>(new DerivedCounter(&destructions, 321));
+    EXPECT_TRUE(u.set(std::move(_unique)));
+    EXPECT_FALSE((bool)_unique);
+    EXPECT_TRUE(u.set(std::unique_ptr<DerivedCounter>(new DerivedCounter(&destructions, 1234))));
+    EXPECT_EQ(2, destructions);
+    EXPECT_TRUE(u.remove(&_unique));
+    EXPECT_TRUE((bool)_unique);
+    if (_unique) {
+        EXPECT_EQ(1234, _unique->magic());
+    }
+    EXPECT_TRUE(u.set(std::move(_unique)));
+    EXPECT_EQ(2, destructions);
+    EXPECT_TRUE(u.clear());
+    EXPECT_EQ(3, destructions);
+    EXPECT_FALSE(u.find(&_int));
+    EXPECT_FALSE(u.find(&_shared));
+    EXPECT_FALSE(u.remove(&_unique));
+    EXPECT_FALSE(u.find(&_weak));
+    EXPECT_FALSE(u.find(&_shared_base));
+    EXPECT_FALSE(u.remove(&_unique_base));
+    EXPECT_FALSE(u.find(&_weak_base));
+
+    // test that unique pointer can be set and removed as base type (but removed as derived only
+    // if it was set as derived type)
+    _unique = std::unique_ptr<DerivedCounter>(new DerivedCounter(&destructions, 321));
+    EXPECT_TRUE(u.set(std::move(_unique)));
+    EXPECT_FALSE((bool)_unique);
+    EXPECT_TRUE(u.remove(&_unique_base));
+    EXPECT_TRUE((bool)_unique_base);
+    if (_unique_base) {
+        EXPECT_EQ(321, _unique_base->magic());
+    }
+    EXPECT_TRUE(u.remove(&_unique));
+    EXPECT_FALSE((bool)_unique);
+
+    EXPECT_TRUE(u.set(std::move(_unique_base)));
+    EXPECT_FALSE((bool)_unique_base);
+    EXPECT_FALSE(u.remove(&_unique));
+    EXPECT_FALSE((bool)_unique);
+    EXPECT_TRUE(u.remove(&_unique_base));
+    EXPECT_TRUE((bool)_unique_base);
+    if (_unique_base) {
+        EXPECT_EQ(321, _unique_base->magic());
+    }
+
+    EXPECT_EQ(3, destructions);
+    EXPECT_TRUE(u.remove(&_unique_base));
+    EXPECT_EQ(4, destructions);
+    EXPECT_FALSE((bool)_unique_base);
+    EXPECT_FALSE(u.find(&_int));
+    EXPECT_FALSE(u.find(&_shared));
+    EXPECT_FALSE(u.find(&_shared_base));
+    EXPECT_FALSE(u.find(&_weak));
+    EXPECT_FALSE(u.find(&_weak_base));
+
+    // u.set(_constUnique);
+
+    // test that copiable & movable type (shared_ptr) is copied unless explicitly moved.
+    _shared = std::make_shared<DerivedCounter>(&destructions, 234);
+    EXPECT_EQ(1L, _shared.use_count());
+    EXPECT_TRUE(u.set(_shared));
+    EXPECT_TRUE((bool)_shared);
+    if (_shared) {
+        EXPECT_EQ(234, _shared->magic());
+    }
+
+    EXPECT_EQ(2L, _shared.use_count());
+    EXPECT_FALSE(u.find(&_int));
+    EXPECT_FALSE(u.remove(&_unique));
+    EXPECT_FALSE(u.find(&_weak));
+    EXPECT_TRUE(u.find(&_shared));
+    EXPECT_FALSE(u.remove(&_unique_base));
+    EXPECT_FALSE(u.find(&_weak_base));
+    EXPECT_EQ(2L, _shared.use_count());
+    EXPECT_TRUE((bool)_shared);
+    if (_shared) {
+        EXPECT_EQ(234, _shared->magic());
+    }
+
+    // explicitly move in shared_ptr
+    EXPECT_TRUE(u.set(std::move(_shared)));
+    EXPECT_EQ(0, _shared.use_count()); // shared should be nullptr
+    EXPECT_FALSE((bool)_shared);
+    EXPECT_TRUE(u.find(&_shared));
+    EXPECT_EQ(2L, _shared.use_count()); // now both u and _shared contains the object
+    EXPECT_TRUE((bool)_shared);
+    if (_shared) {
+        EXPECT_EQ(234, _shared->magic());
+    }
+    EXPECT_FALSE(u.find(&_int));
+    EXPECT_FALSE(u.remove(&_unique));
+    EXPECT_FALSE(u.find(&_weak));
+    EXPECT_FALSE(u.remove(&_unique_base));
+    EXPECT_FALSE(u.find(&_weak_base));
+    EXPECT_TRUE(u.find(&_shared));
+    EXPECT_EQ(2L, _shared.use_count()); // still both u and _shared contains the object
+
+    EXPECT_TRUE(u.clear());
+    EXPECT_TRUE(_shared.unique()); // now only _shared contains the object
+
+    EXPECT_TRUE(u.set(_constShared));
+    EXPECT_EQ(2L, _constShared.use_count()); // even though it is const, we can add a use count
+    EXPECT_TRUE(u.find(&_shared));
+    EXPECT_EQ(3L, _shared.use_count()); // now u, _shared and _constShared contains the const object
+    EXPECT_TRUE((bool)_shared);
+    if (_shared) {
+        EXPECT_EQ(1234, _shared->magic());
+    }
+
+    // test that shared pointer can be set and removed as base type (but removed as derived only
+    // if it was set as derived type)
+    EXPECT_TRUE(u.find(&_shared_base));
+    EXPECT_TRUE((bool)_shared_base);
+    if (_shared_base) {
+        EXPECT_EQ(1234, _shared_base->magic());
+    }
+    EXPECT_EQ(4L, _shared.use_count()); // now u, _shared, _constShared and _shared_base contains
+                                        // the const object
+    _shared.reset();
+    EXPECT_EQ(3L, _shared_base.use_count()); // now u, _constShared and _shared_base contains it
+    EXPECT_TRUE(u.clear());
+    EXPECT_EQ(2L, _shared_base.use_count()); // now _constShared and _shared_base contains it
+
+    EXPECT_TRUE(u.set(_shared_base));        // now u_ also contains it as base class
+    EXPECT_EQ(3L, _shared_base.use_count());
+    EXPECT_FALSE(u.find(&_shared)); // cannot get it as derived type
+    EXPECT_FALSE((bool)_shared);
+    _shared_base.reset();
+    EXPECT_TRUE(u.find(&_shared_base)); // can still get it as base type
+    EXPECT_TRUE((bool)_shared_base);
+    if (_shared_base) {
+        EXPECT_EQ(1234, _shared_base->magic());
+    }
+    _shared = std::static_pointer_cast<DerivedCounter>(_shared_base);
+    EXPECT_FALSE(u.find(&_int));
+    EXPECT_FALSE(u.remove(&_unique));
+    EXPECT_FALSE(u.remove(&_unique_base));
+    EXPECT_FALSE(u.find(&_weak));
+    EXPECT_FALSE(u.find(&_weak_base));
+
+    // test that weak pointer can be copied in (support for moving is from C++14 only)
+    _weak = _shared;
+    EXPECT_EQ(_weak.use_count(), _shared.use_count());
+    EXPECT_TRUE(u.set(_weak));
+
+    _weak.reset();
+    EXPECT_EQ(_weak.use_count(), 0);
+
+    EXPECT_FALSE(u.find(&_int));
+    EXPECT_FALSE(u.remove(&_unique));
+    EXPECT_FALSE(u.find(&_shared));
+    EXPECT_FALSE(u.remove(&_unique_base));
+    EXPECT_FALSE(u.find(&_shared_base));
+    EXPECT_TRUE(u.find(&_weak));
+    EXPECT_EQ(_weak.use_count(), _shared.use_count());
+    EXPECT_EQ(_weak.lock(), _shared);
+
+    // we can remove a weak pointer multiple times
+    _weak.reset();
+    EXPECT_TRUE(u.find(&_weak));
+    EXPECT_EQ(_weak.use_count(), _shared.use_count());
+    EXPECT_EQ(_weak.lock(), _shared);
+    EXPECT_TRUE(u.clear());
+    EXPECT_FALSE(u.find(&_int));
+    EXPECT_FALSE(u.remove(&_unique));
+    EXPECT_FALSE(u.find(&_shared));
+    EXPECT_FALSE(u.find(&_weak));
+    EXPECT_FALSE(u.remove(&_unique_base));
+    EXPECT_FALSE(u.find(&_shared_base));
+    EXPECT_FALSE(u.find(&_weak_base));
+
+    // test that weak pointer can be set and removed as base type (but removed as derived only
+    // if it was set as derived type)
+    _weak = _shared;
+    EXPECT_TRUE(u.set(_weak));
+    EXPECT_TRUE(u.find(&_weak_base));
+    EXPECT_FALSE(_weak_base.expired());
+    if (!_weak_base.expired()) {
+        EXPECT_EQ(1234, _weak_base.lock()->magic());
+    }
+    // now _shared, _constShared and _shared_base contains the const object
+    EXPECT_EQ(3L, _weak.use_count());
+    _weak.reset();
+    EXPECT_EQ(3L, _weak_base.use_count()); // _weak did not hold a reference
+    _shared.reset();
+    EXPECT_EQ(2L, _weak_base.use_count()); // now u, _constShared and _shared_base contains it
+    EXPECT_TRUE(u.clear());
+    EXPECT_FALSE(u.find(&_int));
+    EXPECT_FALSE(u.remove(&_unique));
+    EXPECT_FALSE(u.find(&_shared));
+    EXPECT_FALSE(u.find(&_weak));
+    EXPECT_FALSE(u.remove(&_unique_base));
+    EXPECT_FALSE(u.find(&_shared_base));
+    EXPECT_FALSE(u.find(&_weak_base));
+
+    EXPECT_TRUE(u.set(_weak_base)); // now u_ also contains it as base class
+    EXPECT_FALSE(u.find(&_weak));   // cannot get it as derived type
+    EXPECT_TRUE(_weak.expired());
+    _weak_base.reset();
+    EXPECT_TRUE(u.find(&_weak_base)); // can still get it as base type
+    EXPECT_FALSE(_weak_base.expired());
+    if (!_weak_base.expired()) {
+        EXPECT_EQ(1234, _weak_base.lock()->magic());
+    }
+};
+
+TEST_F(ADataTest, AData_AndroidSpTest) {
+    int destructions = 0;
+    int _int = 0;
+    sp<EventCounter> _shared;
+    wp<EventCounter> _weak;
+    const sp<EventCounter> _constShared(new EventCounter(&destructions));
+
+    AData<int, sp<EventCounter>, wp<EventCounter>>::Strict<uint8_t> u;
+
+    // test that data is empty
+    EXPECT_FALSE(u.used());
+    EXPECT_FALSE(u.find(&_int));
+    EXPECT_FALSE(u.find(&_shared));
+    EXPECT_FALSE(u.find(&_weak));
+
+    // test that integer can be stored and read
+    EXPECT_TRUE(u.set<int>(1));
+    EXPECT_TRUE(u.used());
+    EXPECT_TRUE(u.find(&_int));
+    EXPECT_EQ(1, _int);
+    EXPECT_FALSE(u.find(&_shared));
+    EXPECT_FALSE(u.find(&_weak));
+
+    // test that copiable & movable type (shared_ptr) is copied unless explicitly moved.
+    _shared = new EventCounter(&destructions, 234);
+    _weak = _shared; // used for tracking #234
+
+    EXPECT_TRUE(u.set(_shared));
+    EXPECT_TRUE((bool)_shared.get());
+    if (_shared.get()) {
+        EXPECT_EQ(234, _shared->magic());
+    }
+
+    _shared.clear();
+    EXPECT_EQ(NULL, _shared.get());
+    EXPECT_NE(nullptr, _weak.promote().get()); // u still holds object
+
+    EXPECT_FALSE(u.find(&_int));
+    EXPECT_FALSE(u.find(&_weak));
+    EXPECT_TRUE(u.find(&_shared)); // now u and _shared both hold object
+    EXPECT_TRUE((bool)_shared.get());
+    if (_shared.get()) {
+        EXPECT_EQ(234, _shared->magic());
+    }
+    // verify the find did not move out object
+    _shared.clear();
+    EXPECT_EQ(NULL, _shared.get());
+    EXPECT_NE(nullptr, _weak.promote().get()); // u still holds object
+    EXPECT_TRUE(u.find(&_shared)); // now u and _shared both hold object
+    if (_shared.get()) {
+        EXPECT_EQ(234, _shared->magic());
+    }
+
+    // verify that we can set object multiple times
+    EXPECT_TRUE(u.set(_shared));
+
+    // explicitly move in sp
+    EXPECT_TRUE(u.set(std::move(_shared)));
+    EXPECT_FALSE((bool)_shared.get()); // android also clears sp<> on move...
+    EXPECT_TRUE(u.find(&_shared)); // still can get it back
+    EXPECT_TRUE((bool)_shared.get());
+    if (_shared.get()) {
+        EXPECT_EQ(234, _shared->magic());
+    }
+    EXPECT_FALSE(u.find(&_int));
+    EXPECT_FALSE(u.find(&_weak));
+
+    EXPECT_TRUE(u.used());
+    EXPECT_TRUE(u.clear()); // now only _shared contains the object
+    EXPECT_FALSE(u.used());
+
+    // we still hold a copy
+    EXPECT_TRUE((bool)_shared.get());
+    EXPECT_FALSE(u.find(&_int));
+    EXPECT_FALSE(u.find(&_shared)); // _shared still contains the object
+
+    EXPECT_TRUE(u.set(_constShared));
+    EXPECT_TRUE(u.find(&_shared)); // now _shared contains _constShared
+    EXPECT_EQ(NULL, _weak.promote().get()); // original _shared is now lost
+
+    EXPECT_TRUE((bool)_shared.get());
+    if (_shared.get()) {
+        EXPECT_EQ(1234, _shared->magic());
+    }
+    EXPECT_TRUE(u.clear());
+
+    // test that wp can be copied in
+    _weak = _shared;
+    EXPECT_TRUE(u.set(_weak));
+
+    _weak.clear();
+
+    EXPECT_FALSE(u.find(&_int));
+    EXPECT_FALSE(u.find(&_shared));
+    EXPECT_TRUE(u.find(&_weak));
+    EXPECT_EQ(_weak.promote(), _shared);
+
+    // we can remove a weak pointer multiple times
+    _weak.clear();
+    EXPECT_TRUE(u.find(&_weak));
+    EXPECT_EQ(_weak.promote(), _shared);
+    EXPECT_TRUE(u.clear());
+    EXPECT_FALSE(u.find(&_int));
+    EXPECT_FALSE(u.find(&_shared));
+    EXPECT_FALSE(u.find(&_weak));
+};
+
+TEST_F(ADataTest, AData_RelaxedAndroidSpTest) {
+    int destructions = 0;
+    int _int = 0;
+    sp<EventCounter> _shared;
+    wp<EventCounter> _weak;
+    sp<RefBase> _shared_base;
+    wp<RefBase> _weak_base;
+    const sp<EventCounter> _constShared(new EventCounter(&destructions));
+
+    AData<int, sp<RefBase>, wp<RefBase>>::Relaxed<uint16_t> u;
+
+    // test that data is empty
+    EXPECT_FALSE(u.used());
+    EXPECT_FALSE(u.find(&_int));
+    EXPECT_FALSE(u.find(&_shared));
+    EXPECT_FALSE(u.find(&_weak));
+    EXPECT_FALSE(u.find(&_shared_base));
+    EXPECT_FALSE(u.find(&_weak_base));
+
+    // test that integer can be stored and read
+    EXPECT_TRUE(u.set<int>(1));
+    EXPECT_TRUE(u.used());
+    EXPECT_TRUE(u.find(&_int));
+    EXPECT_EQ(1, _int);
+    EXPECT_FALSE(u.find(&_shared));
+    EXPECT_FALSE(u.find(&_weak));
+    EXPECT_FALSE(u.find(&_shared_base));
+    EXPECT_FALSE(u.find(&_weak_base));
+
+    // test that copiable & movable type (shared_ptr) is copied unless explicitly moved.
+    _shared = new EventCounter(&destructions, 234);
+    _weak = _shared; // used for tracking #234
+
+    EXPECT_TRUE(u.set(_shared));
+    EXPECT_TRUE((bool)_shared.get());
+    if (_shared.get()) {
+        EXPECT_EQ(234, _shared->magic());
+    }
+
+    _shared.clear();
+    EXPECT_EQ(NULL, _shared.get());
+    EXPECT_NE(nullptr, _weak.promote().get()); // u still holds object
+
+    EXPECT_FALSE(u.find(&_int));
+    EXPECT_TRUE(u.find(&_shared)); // now u and _shared both hold object
+    EXPECT_TRUE((bool)_shared.get());
+    if (_shared.get()) {
+        EXPECT_EQ(234, _shared->magic());
+    }
+    // verify the find did not move out object
+    _shared.clear();
+    EXPECT_EQ(NULL, _shared.get());
+    EXPECT_NE(nullptr, _weak.promote().get()); // u still holds object
+    EXPECT_TRUE(u.find(&_shared)); // now u and _shared both hold object
+    if (_shared.get()) {
+        EXPECT_EQ(234, _shared->magic());
+    }
+
+    // verify that we can set object multiple times
+    EXPECT_TRUE(u.set(_shared));
+
+    // explicitly move in sp
+    EXPECT_TRUE(u.set(std::move(_shared)));
+    EXPECT_FALSE((bool)_shared.get()); // android also clears sp<> on move...
+    EXPECT_TRUE(u.find(&_shared)); // still can get it back
+    EXPECT_TRUE((bool)_shared.get());
+    if (_shared.get()) {
+        EXPECT_EQ(234, _shared->magic());
+    }
+    EXPECT_FALSE(u.find(&_int));
+    EXPECT_FALSE(u.find(&_weak));
+    EXPECT_FALSE(u.find(&_weak_base));
+
+    EXPECT_TRUE(u.used());
+    EXPECT_TRUE(u.clear()); // now only _shared contains the object
+    EXPECT_FALSE(u.used());
+
+    // we still hold a copy
+    EXPECT_TRUE((bool)_shared.get());
+    EXPECT_FALSE(u.find(&_int));
+    EXPECT_FALSE(u.find(&_shared)); // _shared still contains the object
+
+    EXPECT_TRUE(u.set(_constShared));
+    EXPECT_TRUE(u.find(&_shared)); // now _shared contains _constShared
+    EXPECT_EQ(NULL, _weak.promote().get()); // original _shared is now lost
+
+    EXPECT_TRUE((bool)_shared.get());
+    if (_shared.get()) {
+        EXPECT_EQ(1234, _shared->magic());
+    }
+    EXPECT_TRUE(u.clear());
+
+    // test that shared pointer can be set and removed as base type (but removed as derived only
+    // if it was set as derived type)
+    EXPECT_TRUE(u.set(_constShared));
+    EXPECT_TRUE(u.find(&_shared_base));
+    EXPECT_TRUE((bool)_shared_base.get());
+    if (_shared_base.get()) {
+        EXPECT_EQ(1234, static_cast<EventCounter*>(_shared_base.get())->magic());
+    }
+    _shared.clear();
+    EXPECT_TRUE(u.clear());
+    EXPECT_TRUE((bool)_shared_base.get());
+    if (_shared_base.get()) {
+        EXPECT_EQ(1234, static_cast<EventCounter*>(_shared_base.get())->magic());
+    }
+
+    EXPECT_TRUE(u.set(_shared_base)); // now u contains it as base class
+    EXPECT_TRUE((bool)_shared_base.get());
+    EXPECT_FALSE(u.find(&_shared)); // cannot get it as derived type
+    EXPECT_FALSE((bool)_shared.get());
+    _shared_base.clear();
+    EXPECT_TRUE(u.find(&_shared_base)); // can still get it as base type
+    EXPECT_TRUE((bool)_shared_base.get());
+    if (_shared_base.get()) {
+        EXPECT_EQ(1234, static_cast<EventCounter*>(_shared_base.get())->magic());
+    }
+    _shared = static_cast<DerivedCounter*>(_shared_base.get());
+    EXPECT_FALSE(u.find(&_int));
+    EXPECT_FALSE(u.find(&_weak));
+    EXPECT_FALSE(u.find(&_weak_base));
+
+    // test that wp can be copied in
+    _weak = _shared;
+    EXPECT_TRUE(u.set(_weak));
+
+    _weak.clear();
+
+    EXPECT_FALSE(u.find(&_int));
+    EXPECT_FALSE(u.find(&_shared));
+    EXPECT_FALSE(u.find(&_shared_base));
+    EXPECT_TRUE(u.find(&_weak));
+    EXPECT_EQ(_weak.promote(), _shared);
+
+    // we can remove a weak pointer multiple times
+    _weak.clear();
+    EXPECT_TRUE(u.find(&_weak));
+    EXPECT_EQ(_weak.promote(), _shared);
+    EXPECT_TRUE(u.clear());
+    EXPECT_FALSE(u.find(&_int));
+    EXPECT_FALSE(u.find(&_shared));
+    EXPECT_FALSE(u.find(&_weak));
+    EXPECT_FALSE(u.find(&_shared_base));
+    EXPECT_FALSE(u.find(&_weak_base));
+
+    // test that weak pointer can be set and removed as base type (but removed as derived only
+    // if it was set as derived type)
+    _weak = _shared;
+    EXPECT_TRUE(u.set(_weak));
+    EXPECT_TRUE(u.find(&_weak_base));
+    EXPECT_TRUE(_weak_base.promote().get() == _shared.get());
+
+    _weak.clear();
+    _shared.clear();
+    EXPECT_TRUE(u.clear());
+    EXPECT_FALSE(u.find(&_int));
+    EXPECT_FALSE(u.find(&_shared));
+    EXPECT_FALSE(u.find(&_weak));
+    EXPECT_FALSE(u.find(&_shared_base));
+    EXPECT_FALSE(u.find(&_weak_base));
+
+    EXPECT_TRUE(u.set(_weak_base)); // now u_ also contains it as base class
+    EXPECT_FALSE(u.find(&_weak));   // cannot get it as derived type
+    EXPECT_FALSE(_weak.promote().get());
+    _weak_base.clear();
+    EXPECT_TRUE(u.find(&_weak_base)); // can still get it as base type
+    EXPECT_TRUE(_weak_base.promote().get());
+    if (_weak_base.promote().get()) {
+        EXPECT_EQ(1234, static_cast<EventCounter*>(_weak_base.promote().get())->magic());
+    }
+};
+
+} // namespace android
diff --git a/media/libstagefright/foundation/tests/Android.mk b/media/libstagefright/foundation/tests/Android.mk
new file mode 100644
index 0000000..d741c6f
--- /dev/null
+++ b/media/libstagefright/foundation/tests/Android.mk
@@ -0,0 +1,35 @@
+# Build the unit tests.
+LOCAL_PATH:= $(call my-dir)
+include $(CLEAR_VARS)
+LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk
+
+LOCAL_MODULE := sf_foundation_test
+
+LOCAL_MODULE_TAGS := tests
+
+LOCAL_SRC_FILES := \
+	AData_test.cpp \
+	Flagged_test.cpp \
+	TypeTraits_test.cpp \
+	Utils_test.cpp \
+
+LOCAL_SHARED_LIBRARIES := \
+	libstagefright_foundation \
+	libutils \
+
+LOCAL_C_INCLUDES := \
+	frameworks/av/include \
+
+LOCAL_CFLAGS += -Werror -Wall
+LOCAL_CLANG := true
+
+include $(BUILD_NATIVE_TEST)
+
+# Include subdirectory makefiles
+# ============================================================
+
+# If we're building with ONE_SHOT_MAKEFILE (mm, mmm), then what the framework
+# team really wants is to build the stuff defined by this makefile.
+ifeq (,$(ONE_SHOT_MAKEFILE))
+include $(call first-makefiles-under,$(LOCAL_PATH))
+endif
diff --git a/media/libstagefright/foundation/tests/Flagged_test.cpp b/media/libstagefright/foundation/tests/Flagged_test.cpp
new file mode 100644
index 0000000..3c90699
--- /dev/null
+++ b/media/libstagefright/foundation/tests/Flagged_test.cpp
@@ -0,0 +1,639 @@
+/*
+ * Copyright 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "Flagged_test"
+
+#include <gtest/gtest.h>
+
+#include <media/stagefright/foundation/Flagged.h>
+
+namespace android {
+
+/**
+ * Helper template that can be used to print values in static_assert error messages.
+ *
+ * Use integers here.
+ */
+template<bool, int ...N>
+struct _print_as_warning { };
+
+template<int ...N>
+struct _print_as_warning<true, N...> : std::true_type { };
+
+#define static_assert_equals(a, b, msg) \
+static_assert(_print_as_warning<(a) == (b), a, b>::value, msg)
+
+class FlaggedTest : public ::testing::Test {
+protected:
+    // empty structs
+    struct A0 { };
+    struct A1 { };
+    struct A_A0 : public A0 { };
+
+    // simple struct
+    struct BB {
+        int32_t i;
+        uint32_t u;
+    };
+
+    // struct inheriting from A0
+    struct BB_A0 : public A0 {
+        int32_t i;
+        uint32_t u;
+    };
+
+    // struct inheriting from struct inheriting A0
+    struct BB_AA0 : public A_A0 {
+        int32_t i;
+        uint32_t u;
+    };
+
+    // struct that wraps
+    struct WBBA0 {
+        BB_A0 b;
+    };
+
+    struct WBBA0_A1 : public A1 {
+        BB_A0 b;
+    };
+
+    struct WBBA0_A0 : public A0 {
+        BB_A0 b;
+    };
+
+    struct WBB_A0 : public A0 {
+        BB b;
+    };
+
+    struct WBBA0_AA0 : public A_A0 {
+        BB_A0 b;
+    };
+
+    struct WBBAA0_A0 : public A0 {
+        BB_AA0 b;
+    };
+
+    struct WWBBA0_A0 : public A0 {
+        WBBA0 b;
+    };
+};
+
+/**
+ * This test is here to confirm the handling of wrapping classes that inherit from an interface
+ * while also inheriting from that same interface. While we no longer use this construct, we want
+ * to track if this defect is ever fixed.
+ */
+TEST_F(FlaggedTest, StaticSanityTests) {
+    static_assert(sizeof(A0) == 1, "");
+    static_assert(sizeof(A1) == 1, "");
+    static_assert(sizeof(A_A0) == 1, "");
+
+    static constexpr size_t size = sizeof(BB); // original [pair]
+
+    // inheriting from A0 does not increase size
+    static_assert(sizeof(BB_A0) == size, ""); // [pair]:A0
+    static_assert(sizeof(BB_AA0) == size, ""); // [pair]:[:A0]
+
+     // wrapping a class that inherits from A0 does not increase size
+    static_assert(sizeof(WBBA0) == size, ""); // [ [pair]:[:A0] ]
+
+    // wrapping a class that inherits from A0 while also inheriting from A1 does not increase size
+    static_assert(sizeof(WBBA0_A1) == size, ""); // [ [pair]:A0 ]:A1
+
+    // wrapping a class that inherits from A0 while also inheriting from A0 DOES increase size
+    EXPECT_GT(sizeof(WBBA0_A0), size); // [ [pair]:A0 ]:A0
+
+    // wrapping a class that does not inherit from A0 while inheriting from A0 does not increase
+    // size
+    static_assert(sizeof(WBB_A0) == size, ""); // [[pair]]:A0
+
+    // wrapping a class that inherits from A0 while also inheriting from a class that inherits
+    // from A0 does increase size
+    EXPECT_GT(sizeof(WBBA0_AA0), size); // [ [pair]:A0 ]:[:A0]
+
+    // wrapping a class that indirectly inherits from A0 while also inheriting from A0 does
+    // increase size
+    EXPECT_GT(sizeof(WBBAA0_A0), size); // [ [pair]:[:A0] ]:A0
+
+    // wrapping a class that inherits from A0 while also inheriting A0 does increase size
+    EXPECT_GT(sizeof(WWBBA0_A0), size); //  [ [pair]:A0 ]:A0
+}
+
+enum FLAG : int32_t {
+    kMask0 = 0x0FF,
+    kFlag0_A = 0x0AA,
+    kFlag0_B = 0x0BB,
+    kFlag0_C = 0x0CC,
+    kMask1 = 0xFF0,
+    kFlag1_A = 0xAA0,
+    kFlag1_B = 0xBB0,
+    kFlag1_C = 0xCC0,
+    kMaskCommon = 0x0F0,
+};
+
+TEST_F(FlaggedTest, BasicExample) {
+    enum SafeFlags : uint32_t {
+      kUnsafe,
+      kSafe,
+      kSafeMask = _Flagged_helper::minMask(kSafe),
+    };
+    typedef Flagged<int32_t, SafeFlags, kSafeMask> safeInt32;
+
+    safeInt32 a(kUnsafe);
+    a.setFlags(kSafe);
+    a.get() = 15;
+    EXPECT_EQ(a.flags(), kSafe);
+    EXPECT_EQ(a.get(), 15);
+
+    enum OriginFlags : uint32_t {
+      kUnknown,
+      kConst,
+      kCalculated,
+      kComponent,
+      kApplication,
+      kFile,
+      kBinder,
+      kOriginMask = _Flagged_helper::minMask(kBinder),
+    };
+    typedef Flagged<safeInt32, OriginFlags, kOriginMask>
+             trackedSafeInt32;
+
+    static_assert(sizeof(trackedSafeInt32) == sizeof(safeInt32), "");
+
+    trackedSafeInt32 b(kConst, kSafe, 1);
+    EXPECT_EQ(b.flags(), kConst);
+    EXPECT_EQ(b.get().flags(), kSafe);
+    EXPECT_EQ(b.get().get(), 1);
+    b.setFlags(kCalculated);
+    volatile bool overflow = true;
+    b.get().setFlags(overflow ? kUnsafe : kSafe);
+
+    enum ValidatedFlags : uint32_t {
+      kUnsafeV = kUnsafe,
+      kSafeV = kSafe,
+      kValidated = kSafe | 2,
+      kSharedMaskV = kSafeMask,
+      kValidatedMask = _Flagged_helper::minMask(kValidated),
+    };
+    typedef Flagged<safeInt32, ValidatedFlags, kValidatedMask, kSharedMaskV> validatedInt32;
+
+    validatedInt32 v(kUnsafeV, kSafe, 10);
+    EXPECT_EQ(v.flags(), kUnsafeV);
+    EXPECT_EQ(v.get().flags(), kUnsafe);  // !kUnsafeV overrides kSafe
+    EXPECT_EQ(v.get().get(), 10);
+    v.setFlags(kValidated);
+    EXPECT_EQ(v.flags(), kValidated);
+    EXPECT_EQ(v.get().flags(), kSafe);
+    v.get().setFlags(kUnsafe);
+    EXPECT_EQ(v.flags(), 2);  // NOTE: sharing masks with enums allows strange situations to occur
+}
+
+TEST_F(FlaggedTest, _Flagged_helper_Test) {
+    using helper = _Flagged_helper;
+
+    using i32 = int32_t;
+    using u32 = uint32_t;
+    using u8 = uint8_t;
+
+    // base2
+    static_assert(Flagged<i32, u32, 0u, 0u, 0>::sFlagMask == 0u, "");
+    static_assert(Flagged<i32, u32, 0u, 0u, 0>::sFlagShift == 0, "");
+    static_assert(Flagged<i32, u32, 0u, 0u, 0>::sEffectiveMask == 0u, "");
+
+    static_assert(Flagged<i32, u32, 0u, 0u, 10>::sFlagMask == 0u, "");
+    static_assert(Flagged<i32, u32, 0u, 0u, 10>::sFlagShift == 10, "");
+    static_assert(Flagged<i32, u32, 0u, 0u, 10>::sEffectiveMask == 0u, "");
+
+    static_assert(Flagged<i32, u32, 0u, 0u, -1>::sFlagMask == 0u, "");
+    static_assert(Flagged<i32, u32, 0u, 0u, -1>::sFlagShift == 0, "");
+    static_assert(Flagged<i32, u32, 0u, 0u, -1>::sEffectiveMask == 0u, "");
+
+    static_assert(Flagged<i32, u32, 99u, 0u, 0>::sFlagMask == 99u, "");
+    static_assert(Flagged<i32, u32, 99u, 0u, 0>::sFlagShift == 0, "");
+    static_assert(Flagged<i32, u32, 99u, 0u, 0>::sEffectiveMask == 99u, "");
+
+    static_assert(Flagged<i32, u32, 0x99u, 0u, 12>::sFlagMask == 0x99u, "");
+    static_assert(Flagged<i32, u32, 0x99u, 0u, 12>::sFlagShift == 12, "");
+    static_assert(Flagged<i32, u32, 0x99u, 0u, 12>::sEffectiveMask == 0x99000u, "");
+
+    static_assert(Flagged<i32, u32, 99u, 0u, -1>::sFlagMask == 99u, "");
+    static_assert(Flagged<i32, u32, 99u, 0u, -1>::sFlagShift == 0, "");
+    static_assert(Flagged<i32, u32, 99u, 0u, -1>::sEffectiveMask == 99u, "");
+
+    // mask_of<T, Flag>
+    // also Flagged<> no default
+    typedef Flagged<i32, u32, 0x800F /* mask */, 0 /* shared mask */, 0 /* shift */> i32_800f_0;
+    typedef Flagged<i32, u32, 0x800F /* mask */, 0 /* shared mask */, 4 /* shift */> i32_800f_4;
+    // this also tests that these types can be instantiated
+    static_assert(sizeof(i32_800f_0) >= sizeof(i32) + sizeof(u32),
+                  "should be at least size of component types");
+    static_assert(sizeof(i32_800f_4) == sizeof(i32_800f_0), "regardless of shift");
+    static_assert(!i32_800f_0::sFlagCombined, "");
+    static_assert(!i32_800f_4::sFlagCombined, "");
+
+    static_assert(helper::mask_of<i32_800f_0, u32>::value == 0x800F, "incorrect mask");
+    static_assert(helper::mask_of<i32_800f_0, i32>::value == 0,
+                  "mask should be 0 when types mismatch");
+    static_assert(helper::mask_of<i32_800f_0, u32>::effective_value == 0x800F, "incorrect mask");
+    static_assert(helper::mask_of<i32_800f_0, i32>::effective_value == 0,
+                  "mask should be 0 when types mismatch");
+    static_assert(helper::mask_of<i32_800f_0, u32>::shift == 0, "incorrect shift");
+    static_assert(helper::mask_of<i32_800f_0, i32>::shift == 0,
+                  "shift should be 0 when types mismatch");
+
+    static_assert(helper::mask_of<i32_800f_4, u32>::value == 0x800F, "incorrect mask");
+    static_assert(helper::mask_of<i32_800f_4, i32>::value == 0,
+                  "mask should be 0 when types mismatch");
+    static_assert(helper::mask_of<i32_800f_4, u32>::effective_value == 0x800F0, "incorrect mask");
+    static_assert(helper::mask_of<i32_800f_4, i32>::effective_value == 0,
+                  "mask should be 0 when types mismatch");
+    static_assert(helper::mask_of<i32_800f_4, u32>::shift == 4, "incorrect shift");
+    static_assert(helper::mask_of<i32_800f_4, i32>::shift == 0,
+                  "shift should be 0 when types mismatch");
+    static_assert(helper::mask_of<i32, u32>::value == 0, "mask should be 0 if not masked");
+    static_assert(helper::mask_of<i32, i32>::value == 0, "mask should be 0 if not masked");
+
+    // lshift(value, n)
+    static_assert(helper::lshift(0U, 0) == 0U, "");
+    static_assert(helper::lshift(0U, 30) == 0U, "");
+    static_assert(helper::lshift(1U, 0) == 1U, "");
+    static_assert(helper::lshift(1U, 10) == 1024U, "");
+    static_assert(helper::lshift(10U, 10) == 10240U, "");
+    static_assert(helper::lshift(10, 10) == 10240, "");
+    static_assert(helper::lshift(-10, 0) == -10, "");
+    // static_assert(helper::lshift(-10, 10) == -10240, ""); // error: left shift of negative value
+
+    // minMask(maxValue)
+    static_assert(helper::minMask(0U) == 0U, "lowest 0 bits");
+    static_assert(helper::minMask(1U) == 1U, "lowest 1 bit");
+    static_assert(helper::minMask(2U) == 3U, "lowest 2 bits");
+    static_assert(helper::minMask(3U) == 3U, "lowest 2 bits");
+    static_assert(helper::minMask(4U) == 7U, "lowest 3 bits");
+    static_assert(helper::minMask(~0U) == ~0U, "all bits");
+    // static_assert(helper::minMask(10) == 0xF, "all bits"); // error: must be unsigned
+
+    // topBits(n)
+    static_assert(helper::topBits<u32>(0) == 0U, "top 0 bit");
+    static_assert(helper::topBits<u32>(1) == 0x80000000U, "top 1 bit");
+    static_assert(helper::topBits<u32>(2) == 0xC0000000U, "top 2 bits");
+    static_assert(helper::topBits<u32>(12) == 0xFFF00000U, "top 12 bits");
+    static_assert(helper::topBits<u32>(32) == 0xFFFFFFFFU, "all bits");
+    // static_assert(helper::topBits<u32>(33) == 0xFFFFFFFFU, ""); // should OVERFLOW
+
+    static_assert(helper::topBits<u8>(0) == 0U, "top 0 bit");
+    static_assert(helper::topBits<u8>(1) == 0x80U, "top 1 bit");
+    static_assert(helper::topBits<u8>(2) == 0xC0U, "top 2 bit");
+    static_assert(helper::topBits<u8>(8) == 0xFFU, "all bits");
+    // static_assert(helper::topBits<u8>(9) == 0xFFU, ""); // should OVERFLOW
+
+    // getShift(mask, base, shared, base-shift, base-effective)
+    static_assert(helper::getShift(0u, 0u, 0u, 0, 0u) == 0, "no flag require no shift");
+    static_assert(helper::getShift(0u, 0u, 1u, 0, 0u) == -1,
+                  "shared must be within mask and base mask");
+    static_assert(helper::getShift(0u, 1u, 1u, 0, 1u) == -1, "shared must be within mask");
+    static_assert(helper::getShift(0u, 1u, 0u, 0, 1u) == 0,
+                  "no flags require no shift even with base mask");
+    static_assert(helper::getShift(0u, 1u, 0u, 1, 2u) == 0,
+                  "no flags require no shift even with shifted base mask");
+    static_assert(helper::getShift(1u, 0u, 0u, 0, 0u) == 0, "no base mask requires no shift");
+    static_assert(helper::getShift(1u, 1u, 0u, 0, 1u) == 1,
+                  "overlapping mask and basemask requires shift");
+    static_assert(helper::getShift(1u, 1u, 0u, 0, 1u) == 1,
+                  "overlapping mask and basemask requires shift");
+    static_assert(helper::getShift(1u, 1u, 1u, 0, 1u) == 0,
+                  "shared mask requires using base shift");
+    static_assert(helper::getShift(1u, 1u, 1u, 1, 2u) == 1,
+                  "shared mask requires using base shift");
+    static_assert(helper::getShift(3u, 5u, 1u, 0, 5u) == 0,
+                  "mask and basemask that overlap only in shared region requires no shift");
+    static_assert(helper::getShift(3u, 7u, 1u, 0, 7u) == -1,
+                  "mask and basemask must not overlap in more than shared region");
+    static_assert(helper::getShift(1u, 0u, 1u, 0, 0u) == -1, "shared must be within base mask");
+
+    static_assert(helper::getShift(0u, 1u, 0u, 1, 1u) == -2, "effective mask must cover base mask");
+    static_assert(helper::getShift(0u, 5u, 0u, 1, 2u) == -2, "effective mask must cover base mask");
+    static_assert(helper::getShift(0u, 5u, 0u, 1, 10u) == 0, "");
+    static_assert(helper::getShift(0u, 5u, 0u, 1, 31u) == 0,
+                  "effective mask can be larger than base mask");
+
+    static_assert(helper::getShift(0x800Fu, 0x800Fu, 0x800Fu, 0, 0x800Fu) == 0,
+                  "(0x800F << 0) & 0x800F == 0x800F");
+    static_assert(helper::getShift(0x800Fu, 0x800Fu, 0x800Fu, 16, 0x800F0000u) == 16,
+                  "(0x800F << 0) & 0x800F == 0x800F");
+    static_assert(helper::getShift(0x1800Fu, 0x800Fu, 0x800Fu, 0, 0x800Fu) == 0,
+                  "(0x1800F << 0) & 0x800F == 0x800F");
+    static_assert(helper::getShift(0x1800Fu, 0x800Fu, 0x800Fu, 16, 0x800F0000u) == -1,
+                  "(0x1800F << 16) overflows");
+
+    // verify that when not sharing masks, effective mask makes the difference
+    static_assert(helper::getShift(0x800Fu, 0u, 0u, 0, 0x800Fu) == 4,
+                  "(0x800F << 4) & 0x800F == 0");
+    static_assert(helper::getShift(0x800Fu, 0x2u, 0u, 0, 0x8002u) == 2,
+                  "(0x800F << 2) & 0x8002 == 0");
+    static_assert(helper::getShift(0x800Fu, 0x1u, 0u, 15, 0x8001u) == 1,
+                  "(0x800F << 1) & 0x8001 == 0");
+    static_assert(helper::getShift(0x800Fu, 0x800Fu, 0u, 16, 0x800F0000u) == 0,
+                  "0x800F & 0x800F0000 == 0");
+    static_assert(helper::getShift(0x800Fu, 0x800F8000u, 0u, 0, 0x800F8000u) == 5,
+                  "(0x800F << 5) & 0x800F8000 == 0");
+    static_assert(helper::getShift(0x800Fu, 0xF0000u, 0u, 0, 0x800F8000u) == 5,
+                  "(0x800F << 5) & 0x800F8000 == 0");
+    static_assert(helper::getShift(0x800Fu, 0x1Fu, 0u, 15, 0x800F8000u) == 5,
+                  "(0x800F << 5) & 0x800F8000 == 0");
+    static_assert(helper::getShift(0xFFu, 0x80808080u, 0u, 0, 0x80808080u) == -1,
+                  "0xFF always overlaps with 0x80808080");
+    static_assert(helper::getShift(0xFFu, 0x10001000u, 0u, 3, 0x80808080u) == -1,
+                  "0xFF always overlaps with 0x80808080");
+    static_assert(helper::getShift(0xFFu, 0x80808040u, 0u, 0, 0x80808040u) == 7,
+                  "(0xFF << 7) & 0x 80808040 == 0");
+
+    // verify min_shift (mask must be positive or no shift can be required)
+    static_assert(helper::getShift(0xFF, 0x40808040, 0, 0, 0x40808040) == 7, "");
+    static_assert(helper::getShift((i32)0x800000FF, 0x40808040, 0, 0, 0x40808040) == -1, "");
+    static_assert(helper::getShift(0x100000FF, 0x40808040, 0, 0, 0x40808040) == -1, "");
+    static_assert(helper::getShift(0xFF, (i32)0x80808040, 0, 0, (i32)0x80808040) == 7, "");
+    static_assert(helper::getShift((i32)0x80007F80, 0x40808040, 0, 0, 0x40808040) == 0, "");
+
+    // shared mask can also be negative (but not shift can be required)
+    static_assert(helper::getShift((i32)0x80007F80, (i32)0xC0808040, (i32)0x80000000,
+                                   0, (i32)0xC0808040) == 0, "");
+    static_assert(helper::getShift((i32)0x80007F80, (i32)0xC0808040, (i32)0xC0000000,
+                                   0, (i32)0xC0808040) == -1, "");
+    static_assert(helper::getShift((i32)0x80007F80, (i32)0x60404020, (i32)0x60000000,
+                                   1, (i32)0xC0808040) == -1, "");
+
+    // min_shift
+    typedef Flagged<i32, u32, 0u> i32_0_0;
+    typedef Flagged<i32, u32, 1u> i32_1_0;
+    typedef Flagged<i32, u32, 1u, 0u, 1> i32_1_1;
+
+    // this is a wrapper over getShift, so same test cases apply when T is flagged
+    static_assert(helper::min_shift<i32_0_0, u32, 0u, 0u>::value == 0, "");
+    static_assert(helper::min_shift<i32_0_0, u32, 0u, 1u>::value == -1, "");
+    static_assert(helper::min_shift<i32_1_0, u32, 0u, 1u>::value == -1, "");
+    static_assert(helper::min_shift<i32_1_0, u32, 0u, 0u>::value == 0, "");
+    static_assert(helper::min_shift<i32_0_0, u32, 1u, 0u>::value == 0, "");
+    static_assert(helper::min_shift<i32_1_0, u32, 1u, 0u>::value == 1, "");
+    static_assert(helper::min_shift<i32_1_0, u32, 1u, 1u>::value == 0, "");
+    static_assert(helper::min_shift<i32_1_1, u32, 1u, 1u>::value == 1, "");
+    static_assert(helper::min_shift<i32_1_1, u32, 3u, 0u>::value == 2, "");
+    static_assert(helper::min_shift<Flagged<i32, u32, 5u>, u32, 3u, 1u>::value == 0, "");
+    static_assert(helper::min_shift<Flagged<i32, u32, 7u>, u32, 3u, 1u>::value == -1, "");
+    static_assert(helper::min_shift<i32_0_0, u32, 1u, 1u>::value == -1, "");
+
+    static_assert(helper::min_shift<i32_800f_0, u32, 0x800Fu, 0u>::value == 4, "");
+    static_assert(helper::min_shift<i32_800f_4, u32, 0x1800Fu, 0x800Fu>::value == 4, "");
+    static_assert(helper::min_shift<i32_800f_4, u32, 0x800Fu, 0u>::value == 0, "");
+    static_assert(helper::min_shift<Flagged<i32, u32, 0x8002u>, u32, 0x800Fu, 0u>::value == 2, "");
+    static_assert(helper::min_shift<Flagged<i32, u32, 0x8001u>, u32, 0x800Fu, 0u>::value == 1, "");
+    static_assert(
+            helper::min_shift<Flagged<i32, u32, 0x800Fu, 0u, 16>, u32, 0x800Fu, 0u>::value == 0, "");
+    static_assert(
+            helper::min_shift<Flagged<i32, u32, 0x800F8000u>, u32, 0x800Fu, 0u>::value == 5, "");
+    static_assert(
+            helper::min_shift<Flagged<i32, u32, 0x80808080u>, u32, 0xFFu, 0u>::value == -1, "");
+    static_assert(
+            helper::min_shift<Flagged<i32, u32, 0x80808040u>, u32, 0xFFu, 0u>::value == 7, "");
+
+    // for min_shift, non-tagged type behaves as if having base mask of 0
+    static_assert(helper::min_shift<i32, u32, 0u, 0u>::value == 0, "");
+    static_assert(helper::min_shift<u32, u32, 0u, 0u>::value == 0, "");
+    static_assert(helper::min_shift<i32, u32, 0u, 0u>::value == 0, "");
+    static_assert(helper::min_shift<i32, u32, 0u, 1u>::value == -1, "");
+    static_assert(helper::min_shift<i32, u32, 1u, 0u>::value == 0, "");
+    static_assert(helper::min_shift<i32, u32, 1u, 1u>::value == -1, "");
+
+    // verify min_shift (mask must be positive or no shift can be required)
+    static_assert(helper::min_shift<Flagged<i32, i32, 0x40808040>, i32, 0xFF, 0>::value == 7, "");
+    static_assert(helper::min_shift<Flagged<i32, i32, 0x40808040>,
+                                    i32, (i32)0x800000FF, 0>::value == -1, "");
+    static_assert(helper::min_shift<Flagged<i32, i32, 0x40808040>,
+                                    i32, 0x100000FF, 0>::value == -1, "");
+    static_assert(helper::min_shift<Flagged<i32, i32, (i32)0x80808040>,
+                                    i32, 0xFF, 0>::value == 7, "");
+    static_assert(helper::min_shift<Flagged<i32, i32, 0x40808040>,
+                                    i32, (i32)0x80007F80, 0>::value == 0, "");
+
+    static_assert(helper::min_shift<Flagged<i32, i32, (i32)0x80808040>,
+                                    i32, (i32)0x80007F80, (i32)0x80000000>::value == 0, "");
+    static_assert(helper::min_shift<Flagged<i32, i32, (i32)0xC0808040>,
+                                    i32, (i32)0x80007F80, (i32)0xC0000000>::value == -1, "");
+    // note: cannot create a flagged type with signed flag and shift
+    // static_assert(helper::min_shift<Flagged<i32, i32, (i32)0x60404020, 0, 1>,
+    //                                i32, (i32)0x40003FC0, (i32)0x40000000>::value == -1, "");
+
+    typedef Flagged<i32, u32, 0x800F /* mask */, 0 /* shared mask */, 16 /* shift */> i32_800f_16;
+    static_assert_equals(sizeof(i32_800f_16), sizeof(i32_800f_0), "");
+    // shifted mask overflows!
+    // typedef Flagged<i32, u32, 0x800F /* mask */, 0 /* shared mask */, 17 /* shift */> i32_800f_17;
+    // static_assert(sizeof(i32_800f_17) == sizeof(i32_800f_0), "");
+    typedef Flagged<i32, i32, 0x800F /* mask */, 0 /* shared mask */, 15 /* shift */> i32_800f_15i;
+    static_assert_equals(sizeof(i32_800f_15i), sizeof(i32_800f_0), "");
+    // shifted mask overflows!
+    // typedef Flagged<i32, i32, 0x800F /* mask */, 0 /* shared mask */, 16 /* shift */> i32_800f_16i;
+    // static_assert(sizeof(i32_800f_16i) == sizeof(i32_800f_0), "");
+
+    // canCombine(mask, base, shared, shift, base-shift, base-effective)
+    static_assert(helper::canCombine(0u, 0u, 0u, 0, 0, 0u), "using no mask is valid");
+    static_assert(helper::canCombine(0u, 0u, 0u, 0, 0, 0u), "");
+    static_assert(helper::canCombine(0u, 0u, 0u, 4, 0, 0u), "");
+    static_assert(!helper::canCombine(0u, 0u, 1u, 0, 0, 0u),
+                  "shared mask must be the overlap of masks");
+    static_assert(helper::canCombine(1u, 0u, 0u, 0, 0, 0u), "");
+    static_assert(helper::canCombine(1u, 0u, 0u, 4, 0, 0u), "");
+    static_assert(helper::canCombine(3u, 5u, 1u, 0, 0, 5u), "");
+    static_assert(!helper::canCombine(3u, 3u, 3u, 1, 0, 3u), "shift must match when sharing mask");
+    static_assert(helper::canCombine(3u, 3u, 3u, 1, 1, 6u), "");
+    static_assert(!helper::canCombine(3u, 3u, 3u, 1, 2, 12u), "shift must match when sharing mask");
+    static_assert(!helper::canCombine(3u, 7u, 1u, 0, 0, 7u), "");
+    static_assert(!helper::canCombine(1u, 0u, 1u, 0, 0, 0u), "");
+
+    static_assert(!helper::canCombine(0u, 1u, 1u, 0, 0, 1u),
+                  "shared mask must be the overlap of masks");
+    static_assert(helper::canCombine(0u, 1u, 0u, 0, 0, 1u), "");
+    static_assert(helper::canCombine(0u, 1u, 0u, 4, 0, 1u), "");
+    static_assert(helper::canCombine(1u, 1u, 0u, 1, 0, 1u), "");
+    static_assert(!helper::canCombine(1u, 1u, 0u, 0, 0, 1u), "");
+    static_assert(helper::canCombine(1u, 1u, 0u, 1, 0, 1u), "");
+    static_assert(helper::canCombine(1u, 1u, 1u, 0, 0, 1u), "");
+    static_assert(!helper::canCombine(1u, 1u, 1u, 1, 0, 1u), "shift must match when sharing mask");
+
+    static_assert(helper::canCombine(0x800Fu, 0x800Fu, 0u, 4, 0, 0x800Fu), "");
+    static_assert(!helper::canCombine(0x800Fu, 0x800Fu, 0u, 1, 0, 0x800Fu), "");
+    static_assert(helper::canCombine(0x800Fu, 0x8002u, 0u, 2, 0, 0x8002u), "");
+    static_assert(helper::canCombine(0x800Fu, 0x8001u, 0u, 1, 0, 0x8001u), "");
+    static_assert(helper::canCombine(0x800Fu, 0x800Fu, 0u, 0, 16, 0x800F0000u), "");
+    static_assert(helper::canCombine(0x800Fu, 0x800Fu, 0x800Fu, 16, 16, 0x800F0000u), "");
+    static_assert(!helper::canCombine(0x1800Fu, 0x800Fu, 0u, 0, 16, 0x800F0000u), "");
+    static_assert(!helper::canCombine(0x1800Fu, 0x800Fu, 0x800Fu, 16, 16, 0x800F0000u), "");
+    static_assert(helper::canCombine(0x800Fu, 0x800F8000u, 0u, 8, 0, 0x800F8000u), "");
+    static_assert(!helper::canCombine(0xFFu, 0x80808080u, 0u, -1, 0, 0x80808080u), "");
+    static_assert(helper::canCombine(0xFFu, 0x80808040u, 0u, 7, 0, 0x80808040u), "");
+    static_assert(helper::canCombine(0xFFu, 0x8000u, 0u, 7, 0, 0x80808040u), "");
+    static_assert(helper::canCombine(0xFFu, 0x101u, 0u, 7, 15, 0x80808040u), "");
+
+    // can combine signed-flagged types only if mask is positive or no shift is required
+    static_assert(!helper::canCombine(0xFF, 0x40808040, 0, 0, 0, 0x40808040), "");
+    static_assert(helper::canCombine(0xFF, 0x40808040, 0, 7, 0, 0x40808040), "");
+    static_assert(!helper::canCombine((i32)0x800000FF, 0x40808040, 0, 0, 0, 0x40808040), "");
+    static_assert(!helper::canCombine((i32)0x800000FF, 0x40808040, 0, 7, 0, 0x40808040), "");
+    static_assert(!helper::canCombine(0x100000FF, 0x40808040, 0, 0, 0, 0x40808040), "");
+    static_assert(!helper::canCombine(0x100000FF, 0x40808040, 0, 7, 0, 0x40808040), "");
+    static_assert(!helper::canCombine(0xFF, (i32)0x80808040, 0, 0, 0, (i32)0x80808040), "");
+    static_assert(helper::canCombine(0xFF, (i32)0x80808040, 0, 7, 0, (i32)0x80808040), "");
+    static_assert(helper::canCombine((i32)0x80007F80, 0x40808040, 0, 0, 0, 0x40808040), "");
+
+    static_assert(helper::canCombine((i32)0x80007F80, (i32)0x80808040, (i32)0x80000000, 0, 0, (i32)0x80808040), "");
+    static_assert(!helper::canCombine((i32)0xC0007F80, (i32)0x80808040, (i32)0xC0000000, 0, 0, (i32)0x80808040), "");
+    static_assert(!helper::canCombine((i32)0x80007F80, (i32)0x80808040, (i32)0x80000000, 1, 0, (i32)0x80808040), "");
+    static_assert(!helper::canCombine((i32)0xC0007F80, (i32)0x80808040, (i32)0xC0000000, 1, 0, (i32)0x80808040), "");
+
+    // can_combine<T, Flag, MASK, [SHARED_MASK], [SHIFT]
+    static_assert(helper::can_combine<i32_0_0, u32, 0u>::value, "");
+    static_assert(helper::can_combine<i32_0_0, u32, 0u, 0u>::value, "");
+    static_assert(helper::can_combine<i32_0_0, u32, 0u, 0u, 4>::value, "");
+    static_assert(!helper::can_combine<i32_0_0, u32, 0u, 1u>::value, "");
+    static_assert(helper::can_combine<i32_0_0, u32, 1u, 0u>::value, "");
+    static_assert(helper::can_combine<i32_0_0, u32, 1u, 0u, 4>::value, "");
+    static_assert(!helper::can_combine<i32_0_0, u32, 1u, 1u>::value, "");
+
+    static_assert(!helper::can_combine<i32_1_0, u32, 0u, 1u>::value, "");
+    static_assert(helper::can_combine<i32_1_0, u32, 0u, 0u>::value, "");
+    static_assert(helper::can_combine<i32_1_0, u32, 0u, 0u, 4>::value, "");
+    static_assert(helper::can_combine<i32_1_0, u32, 1u, 0u>::value, "");
+    static_assert(!helper::can_combine<i32_1_0, u32, 1u, 0u, 0>::value, "");
+    static_assert(helper::can_combine<i32_1_0, u32, 1u, 0u, 1>::value, "");
+    static_assert(helper::can_combine<i32_1_0, u32, 1u, 1u>::value, "");
+    static_assert(helper::can_combine<i32_1_0, u32, 1u, 1u, 0>::value, "");
+    static_assert(!helper::can_combine<i32_1_0, u32, 1u, 1u, 1>::value,
+                  "shouldn't be able to use SHIFT with SHARED_MASK");
+
+    static_assert(helper::can_combine<i32_800f_0, u32, 0x800Fu, 0u, 4>::value, "");
+    static_assert(!helper::can_combine<i32_800f_0, u32, 0x800Fu, 0u, 1>::value, "");
+    static_assert(helper::can_combine<i32_800f_0, u32, 0x800Fu, 0u>::value, "");
+    static_assert(helper::can_combine<Flagged<i32, u32, 0x8002u>, u32, 0x800Fu, 0u>::value, "");
+    static_assert(helper::can_combine<Flagged<i32, u32, 0x8001u>, u32, 0x800Fu, 0u>::value, "");
+    static_assert(helper::can_combine<Flagged<i32, u32, 0x800F0000u>, u32, 0x800Fu, 0u>::value, "");
+    static_assert(helper::can_combine<Flagged<i32, u32, 0x800F8000u>, u32, 0x800Fu, 0u>::value, "");
+    static_assert(!helper::can_combine<Flagged<i32, u32, 0x80808080u>, u32, 0xFFu, 0u>::value, "");
+    static_assert(helper::can_combine<Flagged<i32, u32, 0x80808040u>, u32, 0xFFu, 0u>::value, "");
+
+    // can combine signed-flagged types only if mask is positive or no shift is required
+    static_assert(helper::can_combine<Flagged<i32, i32, 0x40808040>, i32, 0xFF, 0>::value, "");
+    static_assert(!helper::can_combine<Flagged<i32, i32, 0x40808040>,
+                                       i32, (i32)0x800000FF, 0>::value, "");
+    static_assert(!helper::can_combine<Flagged<i32, i32, 0x40808040>,
+                                       i32, 0x100000FF, 0>::value, "");
+    static_assert(helper::can_combine<Flagged<i32, i32, (i32)0x80808040>, i32, 0xFF, 0>::value, "");
+    static_assert(helper::can_combine<Flagged<i32, i32, 0x40808040>,
+                                      i32, (i32)0x80007F80, 0>::value, "");
+
+    static_assert(helper::can_combine<Flagged<i32, i32, (i32)0x80808040>,
+                                      i32, (i32)0x80007F80, (i32)0x80000000>::value, "");
+    static_assert(!helper::can_combine<Flagged<i32, i32, (i32)0xC0808040>,
+                                       i32, (i32)0x80007F80, (i32)0xC0000000>::value, "");
+
+    static_assert(helper::min_shift<Flagged<i32, FLAG, (FLAG)0x80808040>,
+                                    FLAG, (FLAG)0x80007F80, (FLAG)0x80000000>::value == 0, "");
+    static_assert(helper::can_combine<Flagged<i32, FLAG, (FLAG)0x80808040>,
+                                      FLAG, (FLAG)0x80007F80, (FLAG)0x80000000>::value, "");
+
+    // cannot combine non-tagged types
+    static_assert(!helper::can_combine<i32, u32, 0u, 0u>::value, "");
+    static_assert(!helper::can_combine<u32, u32, 0u, 0u>::value, "");
+    static_assert(!helper::can_combine<i32, u32, 0u, 0u>::value, "");
+    static_assert(!helper::can_combine<i32, u32, 0u, 1u>::value, "");
+    static_assert(!helper::can_combine<i32, u32, 1u, 0u>::value, "");
+    static_assert(!helper::can_combine<i32, u32, 1u, 1u>::value, "");
+
+    typedef Flagged<i32_800f_0, u32, 0x800F /* mask */, 0 /* shared mask */> i32_800f_800f;
+    static_assert(i32_800f_800f::sFlagMask == 0x800F, "");
+    static_assert(i32_800f_800f::sFlagShift == 4, "");
+    static_assert(i32_800f_800f::sEffectiveMask == 0x880FF, "");
+    static_assert(!i32_800f_0::sFlagCombined, "");
+    static_assert(!i32_800f_4::sFlagCombined, "");
+
+    static_assert(i32_800f_800f::sFlagCombined, "");
+    static_assert_equals(sizeof(i32_800f_800f), sizeof(i32_800f_0), "");
+
+    typedef Flagged<i32_800f_0, u32, 0x1FFFF /* mask */> i32_800f_1ffff;
+    static_assert(i32_800f_1ffff::sFlagMask == 0x1FFFF, "");
+    static_assert(i32_800f_1ffff::sFlagShift == 0, "");
+    static_assert(i32_800f_1ffff::sEffectiveMask == 0x1FFFF, "");
+    static_assert(!i32_800f_1ffff::sFlagCombined, "");
+
+    // operational tests
+    i32_800f_800f val(0x8000, 0x1234, 56);
+    EXPECT_EQ(val.get().get(), 56);
+    EXPECT_EQ(val.flags(), 0x8000u);
+    EXPECT_EQ(val.get().flags(), 0x1234u & 0x800F);
+    val.setFlags(0x12345);
+    EXPECT_EQ(val.flags(), 0x12345u & 0x800F);
+    EXPECT_EQ(val.get().flags(), 0x1234u & 0x800F);
+    val.get().setFlags(0x54321);
+    EXPECT_EQ(val.flags(), 0x12345u & 0x800F);
+    EXPECT_EQ(val.get().flags(), 0x54321u & 0x800F);
+    EXPECT_EQ(val.get().get(), 56);
+
+    typedef Flagged<i32_800f_4, u32, 0x800F /* mask */, 0 /* shared mask */> i32_800f_800f_B;
+    static_assert(i32_800f_800f_B::sFlagMask == 0x800F, "");
+    static_assert(i32_800f_800f_B::sFlagShift == 0, "");
+    static_assert(i32_800f_800f_B::sEffectiveMask == 0x880FF, "");
+
+    i32_800f_800f_B valB(0x8000, 0x1234, -987);
+    EXPECT_EQ(valB.get().get(), -987);
+    EXPECT_EQ(valB.flags(), 0x8000u);
+    EXPECT_EQ(valB.get().flags(), 0x1234u & 0x800F);
+    valB.setFlags(0x12345);
+    EXPECT_EQ(valB.flags(), 0x12345u & 0x800F);
+    EXPECT_EQ(valB.get().flags(), 0x1234u & 0x800F);
+    valB.get().setFlags(0x5C321);
+    EXPECT_EQ(valB.flags(), 0x12345u & 0x800F);
+    EXPECT_EQ(valB.get().flags(), 0x5C321u & 0x800F);
+    EXPECT_EQ(valB.get().get(), -987);
+
+    typedef Flagged<Flagged<i32, u32, 0xFF>, u32, 0xFF0, 0xF0> i32_ff_ff0;
+    i32_ff_ff0 valC(0xABCD, 0x1234, 101);
+    EXPECT_EQ(valC.get().get(), 101);
+    EXPECT_EQ(valC.flags(), 0xBC0u);
+    EXPECT_EQ(valC.get().flags(), 0xC4u);
+    valC.setFlags(0x12345);
+    EXPECT_EQ(valC.flags(), 0x340u);
+    EXPECT_EQ(valC.get().flags(), 0x44u);
+    valC.get().setFlags(0x54321);
+    EXPECT_EQ(valC.flags(), 0x320u);
+    EXPECT_EQ(valC.get().flags(), 0x21u);
+    EXPECT_EQ(valC.get().get(), 101);
+
+    // when combining flags (with no shift), it should work with signed flags
+    typedef Flagged<Flagged<i32, FLAG, kMask0>, FLAG, kMask1, kMaskCommon> i32_F_ff_ff0;
+    static_assert(i32_F_ff_ff0::sFlagCombined, "flags should be combined");
+
+    i32_F_ff_ff0 valD(kFlag1_A, kFlag0_A, 1023);
+    EXPECT_EQ(valD.get().get(), 1023);
+    EXPECT_EQ(valD.flags(), kFlag1_A);
+    EXPECT_EQ(valD.get().flags(), kFlag0_A);
+    valD.setFlags(kFlag1_B);
+    EXPECT_EQ(valD.flags(), kFlag1_B);
+    EXPECT_EQ(valD.get().flags(), FLAG(0x0BA));
+    valD.get().setFlags(kFlag0_C);
+    EXPECT_EQ(valD.flags(), FLAG(0xBC0));
+    EXPECT_EQ(valD.get().flags(), kFlag0_C);
+    EXPECT_EQ(valD.get().get(), 1023);
+}
+
+} // namespace android
diff --git a/media/libstagefright/foundation/tests/TypeTraits_test.cpp b/media/libstagefright/foundation/tests/TypeTraits_test.cpp
new file mode 100644
index 0000000..1e2049d
--- /dev/null
+++ b/media/libstagefright/foundation/tests/TypeTraits_test.cpp
@@ -0,0 +1,167 @@
+/*
+ * Copyright 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "TypeTraits_test"
+
+#include <gtest/gtest.h>
+
+#include <media/stagefright/foundation/TypeTraits.h>
+
+namespace android {
+
+class TypeTraitsTest : public ::testing::Test {
+protected:
+    enum A { };
+    enum UA : uint32_t { };
+    enum IA : int32_t { };
+};
+
+// =========== basic sanity tests for type-support templates
+TEST_F(TypeTraitsTest, StaticTests) {
+
+    // ============ is_integral_or_enum
+
+    static_assert(!std::is_integral<A>::value, "enums should not be integral");
+    static_assert(!std::is_integral<UA>::value, "enums should not be integral");
+    static_assert(!std::is_integral<IA>::value, "enums should not be integral");
+    static_assert(is_integral_or_enum<A>::value, "enums should be integral_or_enum");
+    static_assert(is_integral_or_enum<UA>::value, "enums should be integral_or_enum");
+    static_assert(is_integral_or_enum<IA>::value, "enums should be integral_or_enum");
+    static_assert(is_integral_or_enum<int>::value, "ints should be integral_or_enum");
+    static_assert(is_integral_or_enum<unsigned>::value, "unsigned ints should be integral_or_enum");
+    static_assert(!is_integral_or_enum<float>::value, "floats should not be integral_or_enum");
+
+    // ============ is_unsigned_integral
+
+    static_assert(!std::is_unsigned<UA>::value,
+                  "unsigned enums should not be unsigned");
+    static_assert(!std::is_unsigned<IA>::value,
+                  "unsigned enums should not be unsigned");
+    static_assert(std::is_unsigned<typename std::underlying_type<UA>::type>::value,
+                  "underlying type of unsigned enums should be unsigned");
+    static_assert(!std::is_unsigned<typename std::underlying_type<IA>::type>::value,
+                  "underlying type of unsigned enums should be unsigned");
+    static_assert(is_unsigned_integral<UA>::value,
+                  "unsigned enums should be unsigned_integral");
+    static_assert(!is_unsigned_integral<IA>::value,
+                  "signed enums should not be unsigned_integral");
+    static_assert(is_unsigned_integral<unsigned>::value,
+                  "unsigned ints should be unsigned_integral");
+    static_assert(!is_unsigned_integral<int>::value,
+                  "ints should not be unsigned_integral");
+    static_assert(!is_unsigned_integral<float>::value,
+                  "floats should not be unsigned_integral");
+
+    // ============ is_signed_integral
+
+    static_assert(!std::is_signed<UA>::value,
+                  "unsigned enums should not be signed");
+    static_assert(!std::is_signed<IA>::value,
+                  "unsigned enums should not be signed");
+    static_assert(!std::is_signed<typename std::underlying_type<UA>::type>::value,
+                  "underlying type of unsigned enums should be signed");
+    static_assert(std::is_signed<typename std::underlying_type<IA>::type>::value,
+                  "underlying type of unsigned enums should be signed");
+    static_assert(!is_signed_integral<UA>::value,
+                  "unsigned enums should not be signed_integral");
+    static_assert(is_signed_integral<IA>::value,
+                  "signed enums should be signed_integral");
+    static_assert(!is_signed_integral<unsigned>::value,
+                  "unsigned ints should not be signed_integral");
+    static_assert(is_signed_integral<int>::value,
+                  "ints should be signed_integral");
+    static_assert(!is_signed_integral<float>::value,
+                  "floats should not be signed_integral");
+
+    // ============ underlying_integral_type
+
+    static_assert(std::is_same<uint64_t, typename underlying_integral_type<uint64_t>::type>::value,
+                  "underlying integral type of uint64_t should be uint64_t");
+    static_assert(std::is_same<uint32_t, typename underlying_integral_type<UA>::type>::value,
+                  "underlying integral type of uint32_t based enums should be uint32_t");
+    static_assert(std::is_same<int64_t, typename underlying_integral_type<int64_t>::type>::value,
+                  "underlying integral type of int64_t should be int64_t");
+    static_assert(std::is_same<int32_t, typename underlying_integral_type<IA>::type>::value,
+                  "underlying integral type of int32_t based enums should be int32_t");
+    //typedef underlying_integral_type<float>::type no_type;
+    static_assert(std::is_same<void, typename underlying_integral_type<float, void>::type>::value,
+                  "underlying integral type of float cannot be specified");
+
+    // ============ is_one_of
+
+    static_assert(!is_one_of<int>::value, "int shouldn't be one of {}");
+    static_assert(!is_one_of<int, unsigned>::value, "int shouldn't be one of {unsigned}");
+    static_assert(!is_one_of<int, unsigned, float>::value,
+                  "int shouldn't be one of {unsigned, float}");
+    static_assert(is_one_of<int, int>::value, "int should be one of {int}");
+    static_assert(is_one_of<int, int, float>::value, "int should be one of {int, float}");
+    static_assert(is_one_of<int, float, int>::value, "int should be one of {float, int}");
+    static_assert(is_one_of<int, float, int, unsigned>::value,
+                  "int should be one of {float, int, unsigned}");
+    static_assert(is_one_of<int, float, unsigned, int>::value,
+                  "int should be one of {float, unsigned, int}");
+    static_assert(!is_one_of<int, int&>::value, "int shouldn't be one of {int&}");
+
+    // ============ are_unique
+
+    static_assert(are_unique<>::value, "{} should be unique");
+    static_assert(are_unique<int>::value, "{int} should be unique");
+    static_assert(are_unique<int, float>::value, "{int, float} should be unique");
+    static_assert(!are_unique<int, int>::value, "{int, int} shouldn't be unique");
+    static_assert(!are_unique<int, float, int>::value, "{int, float, int} shouldn't be unique");
+    static_assert(!are_unique<float, int, int>::value, "{float, int, int} shouldn't be unique");
+    static_assert(!are_unique<int, int, float>::value, "{int, int, float} shouldn't be unique");
+
+    // ============ find_first
+
+    static_assert(find_first<int>::index == 0, "int is not in {}");
+    static_assert(find_first<int, unsigned>::index == 0, "int is not in {unsigned}");
+    static_assert(find_first<int, unsigned, float>::index == 0, "int is not in {unsigned, float}");
+    static_assert(find_first<int, int>::index == 1, "int is 1st in {int}");
+    static_assert(find_first<int, int, float>::index == 1, "int is 1st in {int, float}");
+    static_assert(find_first<int, float, int>::index == 2, "int is 2nd in {float, int}");
+    static_assert(find_first<int, float, int, unsigned>::index == 2,
+                  "int is 2nd in {float, int, unsigned}");
+    static_assert(find_first<int, float, int, unsigned>::index == 2,
+                  "int is 2nd and 3rd in {float, int, int, unsigned}");
+    static_assert(find_first<int, float, unsigned, int>::index == 3,
+                  "int is 3rd in {float, unsigned, int}");
+    static_assert(find_first<int, int&>::index == 0, "int is not in {int&}");
+
+    // ============ find_first_convertible_to
+
+    static_assert(find_first_convertible_to<int>::index == 0, "int is not convertible to {}");
+    static_assert(find_first_convertible_to<int, unsigned*>::index == 0,
+                  "int is not convertible to {unsigned*}");
+    static_assert(find_first_convertible_to<int, unsigned*, float&>::index == 0,
+                  "int is not convertible to {unsigned, float&}");
+    static_assert(find_first_convertible_to<int, int>::index == 1, "int is convertible to {int}");
+    static_assert(find_first_convertible_to<int, unsigned, int>::index == 1,
+                  "int is convertible to 1st of {unsigned, int}");
+    static_assert(find_first_convertible_to<int, int&, float>::index == 2,
+                  "int is convertible to 2nd of {int&, float}");
+    static_assert(find_first_convertible_to<float, float*, int, unsigned>::index == 2,
+                  "float is convertible to 2nd of {float*, int, unsigned}");
+    static_assert(find_first_convertible_to<float, void, float[1], int>::index == 3,
+                  "int is 3rd convertible to {void, float[], int}");
+    static_assert(find_first_convertible_to<int&, const int&>::index == 1,
+                  "int& is convertible to {const int&}");
+    static_assert(find_first_convertible_to<const int&, int&>::index == 0,
+                  "const int& is not convertible to {int&}");
+}
+
+} // namespace android
diff --git a/media/libstagefright/foundation/tests/Utils_test.cpp b/media/libstagefright/foundation/tests/Utils_test.cpp
new file mode 100644
index 0000000..0439d5c
--- /dev/null
+++ b/media/libstagefright/foundation/tests/Utils_test.cpp
@@ -0,0 +1,280 @@
+/*
+ * Copyright 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "Utils_test"
+
+#include <gtest/gtest.h>
+
+#include <media/stagefright/foundation/ADebug.h>
+#include <media/stagefright/foundation/AStringUtils.h>
+#include <media/stagefright/foundation/AUtils.h>
+#include <media/stagefright/Utils.h> // for FOURCC
+
+namespace android {
+
+class UtilsTest : public ::testing::Test {
+};
+
+TEST_F(UtilsTest, TestStringUtils) {
+    ASSERT_EQ(AStringUtils::Compare("Audio", "AudioExt", 5, false), 0);
+    ASSERT_EQ(AStringUtils::Compare("Audio", "audiOExt", 5, true), 0);
+    ASSERT_NE(AStringUtils::Compare("Audio", "audioExt", 5, false), 0);
+    ASSERT_NE(AStringUtils::Compare("Audio", "AudiOExt", 5, false), 0);
+
+    ASSERT_LT(AStringUtils::Compare("Audio", "AudioExt", 7, false), 0);
+    ASSERT_LT(AStringUtils::Compare("Audio", "audiOExt", 7, true), 0);
+
+    ASSERT_GT(AStringUtils::Compare("AudioExt", "Audio", 7, false), 0);
+    ASSERT_GT(AStringUtils::Compare("audiOext", "Audio", 7, true), 0);
+
+    ASSERT_LT(AStringUtils::Compare("Audio", "Video", 5, false), 0);
+    ASSERT_LT(AStringUtils::Compare("Audio1", "Audio2", 6, false), 0);
+    ASSERT_LT(AStringUtils::Compare("audio", "VIDEO", 5, true), 0);
+    ASSERT_LT(AStringUtils::Compare("audio1", "AUDIO2", 6, true), 0);
+
+    ASSERT_GT(AStringUtils::Compare("Video", "Audio", 5, false), 0);
+    ASSERT_GT(AStringUtils::Compare("Audio2", "Audio1", 6, false), 0);
+    ASSERT_GT(AStringUtils::Compare("VIDEO", "audio", 5, true), 0);
+    ASSERT_GT(AStringUtils::Compare("AUDIO2", "audio1", 6, true), 0);
+
+    ASSERT_TRUE(AStringUtils::MatchesGlob("AudioA", 5, "AudioB", 5, false));
+    ASSERT_FALSE(AStringUtils::MatchesGlob("AudioA", 6, "AudioA", 5, false));
+    ASSERT_FALSE(AStringUtils::MatchesGlob("AudioA", 5, "AudioA", 6, false));
+    ASSERT_FALSE(AStringUtils::MatchesGlob("AudioA", 5, "audiOB", 5, false));
+    ASSERT_TRUE(AStringUtils::MatchesGlob("AudioA", 5, "audiOB", 5, true));
+    ASSERT_FALSE(AStringUtils::MatchesGlob("AudioA", 6, "AudioA", 5, true));
+    ASSERT_FALSE(AStringUtils::MatchesGlob("AudioA", 5, "AudioA", 6, true));
+
+    ASSERT_TRUE(AStringUtils::MatchesGlob("*1", 1, "String8", 6, true));
+    ASSERT_TRUE(AStringUtils::MatchesGlob("*1", 1, "String8", 6, false));
+    ASSERT_TRUE(AStringUtils::MatchesGlob("*1", 1, "String8", 0, true));
+    ASSERT_TRUE(AStringUtils::MatchesGlob("*1", 1, "String8", 0, false));
+
+    ASSERT_TRUE(AStringUtils::MatchesGlob("*ring1", 5, "String8", 6, false));
+    ASSERT_TRUE(AStringUtils::MatchesGlob("*ring2", 5, "STRING8", 6, true));
+    ASSERT_FALSE(AStringUtils::MatchesGlob("*ring4", 5, "StRing8", 6, false));
+    ASSERT_FALSE(AStringUtils::MatchesGlob("*ring5", 5, "StrinG8", 6, false));
+    ASSERT_FALSE(AStringUtils::MatchesGlob("*ring8", 5, "String8", 7, false));
+    ASSERT_FALSE(AStringUtils::MatchesGlob("*ring8", 5, "String8", 7, true));
+
+    ASSERT_TRUE(AStringUtils::MatchesGlob("Str*1", 4, "String8", 6, false));
+    ASSERT_TRUE(AStringUtils::MatchesGlob("Str*2", 4, "STRING8", 6, true));
+    ASSERT_FALSE(AStringUtils::MatchesGlob("Str*3", 4, "string8", 6, false));
+    ASSERT_FALSE(AStringUtils::MatchesGlob("Str*4", 4, "StRing8", 6, false));
+    ASSERT_FALSE(AStringUtils::MatchesGlob("Str*5", 4, "AString8", 7, false));
+    ASSERT_FALSE(AStringUtils::MatchesGlob("Str*6", 4, "AString8", 7, true));
+
+    ASSERT_TRUE(AStringUtils::MatchesGlob("Str*ng1", 6, "String8", 6, false));
+    ASSERT_FALSE(AStringUtils::MatchesGlob("Str*ng2", 6, "string8", 6, false));
+    ASSERT_FALSE(AStringUtils::MatchesGlob("Str*ng3", 6, "StRing8", 6, false));
+    ASSERT_FALSE(AStringUtils::MatchesGlob("Str*ng4", 6, "StriNg8", 6, false));
+    ASSERT_FALSE(AStringUtils::MatchesGlob("Str*ng5", 6, "StrinG8", 6, false));
+    ASSERT_TRUE(AStringUtils::MatchesGlob("Str*ng6", 6, "STRING8", 6, true));
+    ASSERT_FALSE(AStringUtils::MatchesGlob("Str*ng8", 6, "AString8", 7, false));
+    ASSERT_FALSE(AStringUtils::MatchesGlob("Str*ng1", 6, "String16", 7, false));
+    ASSERT_TRUE(AStringUtils::MatchesGlob("Str*ing9", 7, "String8", 6, false));
+    ASSERT_FALSE(AStringUtils::MatchesGlob("Str*ringA", 8, "String8", 6, false));
+    ASSERT_FALSE(AStringUtils::MatchesGlob("Str*ng8", 6, "AString8", 7, true));
+    ASSERT_FALSE(AStringUtils::MatchesGlob("Str*ng1", 6, "String16", 7, true));
+    ASSERT_TRUE(AStringUtils::MatchesGlob("Str*ing9", 7, "STRING8", 6, true));
+    ASSERT_FALSE(AStringUtils::MatchesGlob("Str*ringA", 8, "String8", 6, true));
+
+    ASSERT_TRUE(AStringUtils::MatchesGlob("*str*str1", 8, "bestrestroom", 9, false));
+    ASSERT_TRUE(AStringUtils::MatchesGlob("*str*str1", 8, "bestrestrestroom", 13, false));
+    ASSERT_FALSE(AStringUtils::MatchesGlob("*str*stro", 8, "bestrestrestroom", 14, false));
+    ASSERT_TRUE(AStringUtils::MatchesGlob("*str*str*1", 9, "bestrestrestroom", 14, false));
+    ASSERT_TRUE(AStringUtils::MatchesGlob("*str*str1", 8, "beSTReSTRoom", 9, true));
+    ASSERT_TRUE(AStringUtils::MatchesGlob("*str*str1", 8, "beSTRestreSTRoom", 13, true));
+    ASSERT_FALSE(AStringUtils::MatchesGlob("*str*stro", 8, "bestreSTReSTRoom", 14, true));
+    ASSERT_TRUE(AStringUtils::MatchesGlob("*str*str*1", 9, "bestreSTReSTRoom", 14, true));
+}
+
+TEST_F(UtilsTest, TestDebug) {
+#define LVL(x) (ADebug::Level)(x)
+    ASSERT_EQ(ADebug::GetLevelFromSettingsString("video", "", LVL(5)), LVL(5));
+    ASSERT_EQ(ADebug::GetLevelFromSettingsString("video", "   \t  \n ", LVL(2)), LVL(2));
+    ASSERT_EQ(ADebug::GetLevelFromSettingsString("video", "3", LVL(5)), LVL(3));
+    ASSERT_EQ(ADebug::GetLevelFromSettingsString("video", "3:*deo", LVL(5)), LVL(3));
+    ASSERT_EQ(ADebug::GetLevelFromSettingsString(
+            "video", "\t\n 3 \t\n:\t\n video \t\n", LVL(5)), LVL(3));
+    ASSERT_EQ(ADebug::GetLevelFromSettingsString("video", "3:*deo,2:vid*", LVL(5)), LVL(2));
+    ASSERT_EQ(ADebug::GetLevelFromSettingsString(
+            "avideo", "\t\n 3 \t\n:\t\n avideo \t\n,\t\n 2 \t\n:\t\n video \t\n", LVL(5)), LVL(3));
+    ASSERT_EQ(ADebug::GetLevelFromSettingsString(
+            "audio.omx", "4:*omx,3:*d*o*,2:audio*", LVL(5)), LVL(2));
+    ASSERT_EQ(ADebug::GetLevelFromSettingsString(
+            "video.omx", "4:*omx,3:*d*o*,2:audio*", LVL(5)), LVL(3));
+    ASSERT_EQ(ADebug::GetLevelFromSettingsString("video", "4:*omx,3:*d*o*,2:audio*", LVL(5)), LVL(3));
+    ASSERT_EQ(ADebug::GetLevelFromSettingsString("omx", "4:*omx,3:*d*o*,2:audio*", LVL(5)), LVL(4));
+#undef LVL
+}
+
+TEST_F(UtilsTest, TestFourCC) {
+    ASSERT_EQ(FOURCC('s', 't', 'm' , 'u'), 'stmu');
+}
+
+TEST_F(UtilsTest, TestMathTemplates) {
+    ASSERT_EQ(divRound(-10, -4), 3);
+    ASSERT_EQ(divRound(-11, -4), 3);
+    ASSERT_EQ(divRound(-12, -4), 3);
+    ASSERT_EQ(divRound(-13, -4), 3);
+    ASSERT_EQ(divRound(-14, -4), 4);
+
+    ASSERT_EQ(divRound(10, -4), -3);
+    ASSERT_EQ(divRound(11, -4), -3);
+    ASSERT_EQ(divRound(12, -4), -3);
+    ASSERT_EQ(divRound(13, -4), -3);
+    ASSERT_EQ(divRound(14, -4), -4);
+
+    ASSERT_EQ(divRound(-10, 4), -3);
+    ASSERT_EQ(divRound(-11, 4), -3);
+    ASSERT_EQ(divRound(-12, 4), -3);
+    ASSERT_EQ(divRound(-13, 4), -3);
+    ASSERT_EQ(divRound(-14, 4), -4);
+
+    ASSERT_EQ(divRound(10, 4), 3);
+    ASSERT_EQ(divRound(11, 4), 3);
+    ASSERT_EQ(divRound(12, 4), 3);
+    ASSERT_EQ(divRound(13, 4), 3);
+    ASSERT_EQ(divRound(14, 4), 4);
+
+    ASSERT_EQ(divUp(-11, -4), 3);
+    ASSERT_EQ(divUp(-12, -4), 3);
+    ASSERT_EQ(divUp(-13, -4), 4);
+
+    ASSERT_EQ(divUp(11, -4), -2);
+    ASSERT_EQ(divUp(12, -4), -3);
+    ASSERT_EQ(divUp(13, -4), -3);
+
+    ASSERT_EQ(divUp(-11, 4), -2);
+    ASSERT_EQ(divUp(-12, 4), -3);
+    ASSERT_EQ(divUp(-13, 4), -3);
+
+    ASSERT_EQ(divUp(11, 4), 3);
+    ASSERT_EQ(divUp(12, 4), 3);
+    ASSERT_EQ(divUp(13, 4), 4);
+
+    ASSERT_EQ(align(11, 4), 12);
+    ASSERT_EQ(align(12, 4), 12);
+    ASSERT_EQ(align(13, 4), 16);
+    ASSERT_EQ(align(11, 8), 16);
+    ASSERT_EQ(align(11, 2), 12);
+    ASSERT_EQ(align(11, 1), 11);
+
+    ASSERT_EQ(abs(5L), 5L);
+    ASSERT_EQ(abs(-25), 25);
+
+    ASSERT_EQ(min(5.6f, 6.0f), 5.6f);
+    ASSERT_EQ(min(6.0f, 5.6f), 5.6f);
+    ASSERT_EQ(min(-4.3, 8.6), -4.3);
+    ASSERT_EQ(min(8.6, -4.3), -4.3);
+
+    ASSERT_EQ(max(5.6f, 6.0f), 6.0f);
+    ASSERT_EQ(max(6.0f, 5.6f), 6.0f);
+    ASSERT_EQ(max(-4.3, 8.6), 8.6);
+    ASSERT_EQ(max(8.6, -4.3), 8.6);
+
+    ASSERT_FALSE(isInRange(-43, 86u, -44));
+    ASSERT_TRUE(isInRange(-43, 87u, -43));
+    ASSERT_TRUE(isInRange(-43, 88u, -1));
+    ASSERT_TRUE(isInRange(-43, 89u, 0));
+    ASSERT_TRUE(isInRange(-43, 90u, 46));
+    ASSERT_FALSE(isInRange(-43, 91u, 48));
+    ASSERT_FALSE(isInRange(-43, 92u, 50));
+
+    ASSERT_FALSE(isInRange(43, 86u, 42));
+    ASSERT_TRUE(isInRange(43, 87u, 43));
+    ASSERT_TRUE(isInRange(43, 88u, 44));
+    ASSERT_TRUE(isInRange(43, 89u, 131));
+    ASSERT_FALSE(isInRange(43, 90u, 133));
+    ASSERT_FALSE(isInRange(43, 91u, 135));
+
+    ASSERT_FALSE(isInRange(43u, 86u, 42u));
+    ASSERT_TRUE(isInRange(43u, 85u, 43u));
+    ASSERT_TRUE(isInRange(43u, 84u, 44u));
+    ASSERT_TRUE(isInRange(43u, 83u, 125u));
+    ASSERT_FALSE(isInRange(43u, 82u, 125u));
+    ASSERT_FALSE(isInRange(43u, 81u, 125u));
+
+    ASSERT_FALSE(isInRange(-43, ~0u, 43));
+    ASSERT_FALSE(isInRange(-43, ~0u, 44));
+    ASSERT_FALSE(isInRange(-43, ~0u, ~0));
+    ASSERT_FALSE(isInRange(-43, ~0u, 41));
+    ASSERT_FALSE(isInRange(-43, ~0u, 40));
+
+    ASSERT_FALSE(isInRange(43u, ~0u, 43u));
+    ASSERT_FALSE(isInRange(43u, ~0u, 41u));
+    ASSERT_FALSE(isInRange(43u, ~0u, 40u));
+    ASSERT_FALSE(isInRange(43u, ~0u, ~0u));
+
+    ASSERT_FALSE(isInRange(-43, 86u, -44, 0u));
+    ASSERT_FALSE(isInRange(-43, 86u, -44, 1u));
+    ASSERT_FALSE(isInRange(-43, 86u, -44, 2u));
+    ASSERT_FALSE(isInRange(-43, 86u, -44, ~0u));
+    ASSERT_TRUE(isInRange(-43, 87u, -43, 0u));
+    ASSERT_TRUE(isInRange(-43, 87u, -43, 1u));
+    ASSERT_TRUE(isInRange(-43, 87u, -43, 86u));
+    ASSERT_TRUE(isInRange(-43, 87u, -43, 87u));
+    ASSERT_FALSE(isInRange(-43, 87u, -43, 88u));
+    ASSERT_FALSE(isInRange(-43, 87u, -43, ~0u));
+    ASSERT_TRUE(isInRange(-43, 88u, -1, 0u));
+    ASSERT_TRUE(isInRange(-43, 88u, -1, 45u));
+    ASSERT_TRUE(isInRange(-43, 88u, -1, 46u));
+    ASSERT_FALSE(isInRange(-43, 88u, -1, 47u));
+    ASSERT_FALSE(isInRange(-43, 88u, -1, ~3u));
+    ASSERT_TRUE(isInRange(-43, 90u, 46, 0u));
+    ASSERT_TRUE(isInRange(-43, 90u, 46, 1u));
+    ASSERT_FALSE(isInRange(-43, 90u, 46, 2u));
+    ASSERT_FALSE(isInRange(-43, 91u, 48, 0u));
+    ASSERT_FALSE(isInRange(-43, 91u, 48, 2u));
+    ASSERT_FALSE(isInRange(-43, 91u, 48, ~6u));
+    ASSERT_FALSE(isInRange(-43, 92u, 50, 0u));
+    ASSERT_FALSE(isInRange(-43, 92u, 50, 1u));
+
+    ASSERT_FALSE(isInRange(43u, 86u, 42u, 0u));
+    ASSERT_FALSE(isInRange(43u, 86u, 42u, 1u));
+    ASSERT_FALSE(isInRange(43u, 86u, 42u, 2u));
+    ASSERT_FALSE(isInRange(43u, 86u, 42u, ~0u));
+    ASSERT_TRUE(isInRange(43u, 87u, 43u, 0u));
+    ASSERT_TRUE(isInRange(43u, 87u, 43u, 1u));
+    ASSERT_TRUE(isInRange(43u, 87u, 43u, 86u));
+    ASSERT_TRUE(isInRange(43u, 87u, 43u, 87u));
+    ASSERT_FALSE(isInRange(43u, 87u, 43u, 88u));
+    ASSERT_FALSE(isInRange(43u, 87u, 43u, ~0u));
+    ASSERT_TRUE(isInRange(43u, 88u, 60u, 0u));
+    ASSERT_TRUE(isInRange(43u, 88u, 60u, 70u));
+    ASSERT_TRUE(isInRange(43u, 88u, 60u, 71u));
+    ASSERT_FALSE(isInRange(43u, 88u, 60u, 72u));
+    ASSERT_FALSE(isInRange(43u, 88u, 60u, ~3u));
+    ASSERT_TRUE(isInRange(43u, 90u, 132u, 0u));
+    ASSERT_TRUE(isInRange(43u, 90u, 132u, 1u));
+    ASSERT_FALSE(isInRange(43u, 90u, 132u, 2u));
+    ASSERT_FALSE(isInRange(43u, 91u, 134u, 0u));
+    ASSERT_FALSE(isInRange(43u, 91u, 134u, 2u));
+    ASSERT_FALSE(isInRange(43u, 91u, 134u, ~6u));
+    ASSERT_FALSE(isInRange(43u, 92u, 136u, 0u));
+    ASSERT_FALSE(isInRange(43u, 92u, 136u, 1u));
+
+    ASSERT_EQ(periodicError(124, 100), 24);
+    ASSERT_EQ(periodicError(288, 100), 12);
+    ASSERT_EQ(periodicError(-345, 100), 45);
+    ASSERT_EQ(periodicError(-493, 100), 7);
+    ASSERT_EQ(periodicError(-550, 100), 50);
+    ASSERT_EQ(periodicError(-600, 100), 0);
+}
+
+} // namespace android
diff --git a/media/libstagefright/http/Android.mk b/media/libstagefright/http/Android.mk
index 33b8361..9c16f40 100644
--- a/media/libstagefright/http/Android.mk
+++ b/media/libstagefright/http/Android.mk
@@ -22,8 +22,8 @@
 LOCAL_CFLAGS += -Wno-multichar
 
 LOCAL_CFLAGS += -Werror -Wall
-LOCAL_CLANG := true
-LOCAL_SANITIZE := signed-integer-overflow
+LOCAL_SANITIZE := signed-integer-overflow cfi
+LOCAL_SANITIZE_DIAG := cfi
 
 include $(BUILD_SHARED_LIBRARY)
 
diff --git a/media/libstagefright/httplive/Android.mk b/media/libstagefright/httplive/Android.mk
index 2c985fc..1903d10 100644
--- a/media/libstagefright/httplive/Android.mk
+++ b/media/libstagefright/httplive/Android.mk
@@ -14,8 +14,8 @@
 	$(TOP)/frameworks/native/include/media/openmax
 
 LOCAL_CFLAGS += -Werror -Wall
-LOCAL_CLANG := true
-LOCAL_SANITIZE := unsigned-integer-overflow signed-integer-overflow
+LOCAL_SANITIZE := unsigned-integer-overflow signed-integer-overflow cfi
+LOCAL_SANITIZE_DIAG := cfi
 
 LOCAL_SHARED_LIBRARIES := \
         liblog \
diff --git a/media/libstagefright/httplive/LiveSession.cpp b/media/libstagefright/httplive/LiveSession.cpp
index f673426..e144942 100644
--- a/media/libstagefright/httplive/LiveSession.cpp
+++ b/media/libstagefright/httplive/LiveSession.cpp
@@ -49,11 +49,6 @@
 const int64_t LiveSession::kUpSwitchMarginUs = 5000000ll;
 const int64_t LiveSession::kResumeThresholdUs = 100000ll;
 
-// Buffer Prepare/Ready/Underflow Marks
-const int64_t LiveSession::kReadyMarkUs = 5000000ll;
-const int64_t LiveSession::kPrepareMarkUs = 1500000ll;
-const int64_t LiveSession::kUnderflowMarkUs = 1000000ll;
-
 struct LiveSession::BandwidthEstimator : public RefBase {
     BandwidthEstimator();
 
@@ -495,6 +490,13 @@
     return new HTTPDownloader(mHTTPService, mExtraHeaders);
 }
 
+void LiveSession::setBufferingSettings(
+        const BufferingSettings &buffering) {
+    sp<AMessage> msg = new AMessage(kWhatSetBufferingSettings, this);
+    writeToAMessage(msg, buffering);
+    msg->post();
+}
+
 void LiveSession::connectAsync(
         const char *url, const KeyedVector<String8, String8> *headers) {
     sp<AMessage> msg = new AMessage(kWhatConnect, this);
@@ -518,9 +520,10 @@
     return err;
 }
 
-status_t LiveSession::seekTo(int64_t timeUs) {
+status_t LiveSession::seekTo(int64_t timeUs, MediaPlayerSeekMode mode) {
     sp<AMessage> msg = new AMessage(kWhatSeek, this);
     msg->setInt64("timeUs", timeUs);
+    msg->setInt32("mode", mode);
 
     sp<AMessage> response;
     status_t err = msg->postAndAwaitResponse(&response);
@@ -619,6 +622,12 @@
 
 void LiveSession::onMessageReceived(const sp<AMessage> &msg) {
     switch (msg->what()) {
+        case kWhatSetBufferingSettings:
+        {
+            readFromAMessage(msg, &mBufferingSettings);
+            break;
+        }
+
         case kWhatConnect:
         {
             onConnect(msg);
@@ -829,7 +838,10 @@
                     // If switching up, require a cushion bigger than kUnderflowMark
                     // to avoid buffering immediately after the switch.
                     // (If we don't have that cushion we'd rather cancel and try again.)
-                    int64_t delayUs = switchUp ? (kUnderflowMarkUs + 1000000ll) : 0;
+                    int64_t delayUs =
+                        switchUp ?
+                            (mBufferingSettings.mRebufferingWatermarkLowMs * 1000ll + 1000000ll)
+                            : 0;
                     bool needResumeUntil = false;
                     sp<AMessage> stopParams = msg;
                     if (checkSwitchProgress(stopParams, delayUs, &needResumeUntil)) {
@@ -1441,8 +1453,11 @@
 
 void LiveSession::onSeek(const sp<AMessage> &msg) {
     int64_t timeUs;
+    int32_t mode;
     CHECK(msg->findInt64("timeUs", &timeUs));
-    changeConfiguration(timeUs);
+    CHECK(msg->findInt32("mode", &mode));
+    // TODO: add "mode" to changeConfiguration.
+    changeConfiguration(timeUs/* , (MediaPlayerSeekMode)mode */);
 }
 
 status_t LiveSession::getDuration(int64_t *durationUs) const {
@@ -2185,13 +2200,16 @@
         }
 
         ++activeCount;
-        int64_t readyMark = mInPreparationPhase ? kPrepareMarkUs : kReadyMarkUs;
-        if (bufferedDurationUs > readyMark
+        int64_t readyMarkUs =
+            (mInPreparationPhase ?
+                mBufferingSettings.mInitialWatermarkMs :
+                mBufferingSettings.mRebufferingWatermarkHighMs) * 1000ll;
+        if (bufferedDurationUs > readyMarkUs
                 || mPacketSources[i]->isFinished(0)) {
             ++readyCount;
         }
         if (!mPacketSources[i]->isFinished(0)) {
-            if (bufferedDurationUs < kUnderflowMarkUs) {
+            if (bufferedDurationUs < mBufferingSettings.mRebufferingWatermarkLowMs * 1000ll) {
                 ++underflowCount;
             }
             if (bufferedDurationUs > mUpSwitchMark) {
diff --git a/media/libstagefright/httplive/LiveSession.h b/media/libstagefright/httplive/LiveSession.h
index 65a824e..abf8cf0 100644
--- a/media/libstagefright/httplive/LiveSession.h
+++ b/media/libstagefright/httplive/LiveSession.h
@@ -18,6 +18,7 @@
 
 #define LIVE_SESSION_H_
 
+#include <media/BufferingSettings.h>
 #include <media/stagefright/foundation/AHandler.h>
 #include <media/mediaplayer.h>
 
@@ -72,6 +73,8 @@
             uint32_t flags,
             const sp<IMediaHTTPService> &httpService);
 
+    void setBufferingSettings(const BufferingSettings &buffering);
+
     int64_t calculateMediaTimeUs(int64_t firstTimeUs, int64_t timeUs, int32_t discontinuitySeq);
     status_t dequeueAccessUnit(StreamType stream, sp<ABuffer> *accessUnit);
 
@@ -86,7 +89,7 @@
     status_t disconnect();
 
     // Blocks until seek is complete.
-    status_t seekTo(int64_t timeUs);
+    status_t seekTo(int64_t timeUs, MediaPlayerSeekMode mode);
 
     status_t getDuration(int64_t *durationUs) const;
     size_t getTrackCount() const;
@@ -129,6 +132,7 @@
         kWhatChangeConfiguration2       = 'chC2',
         kWhatChangeConfiguration3       = 'chC3',
         kWhatPollBuffering              = 'poll',
+        kWhatSetBufferingSettings       = 'sBuS',
     };
 
     // Bandwidth Switch Mark Defaults
@@ -138,9 +142,7 @@
     static const int64_t kResumeThresholdUs;
 
     // Buffer Prepare/Ready/Underflow Marks
-    static const int64_t kReadyMarkUs;
-    static const int64_t kPrepareMarkUs;
-    static const int64_t kUnderflowMarkUs;
+    BufferingSettings mBufferingSettings;
 
     struct BandwidthEstimator;
     struct BandwidthItem {
diff --git a/media/libstagefright/httplive/PlaylistFetcher.cpp b/media/libstagefright/httplive/PlaylistFetcher.cpp
index 7ad7fee..bbcea51 100644
--- a/media/libstagefright/httplive/PlaylistFetcher.cpp
+++ b/media/libstagefright/httplive/PlaylistFetcher.cpp
@@ -956,6 +956,38 @@
     return false;
 }
 
+void PlaylistFetcher::initSeqNumberForLiveStream(
+        int32_t &firstSeqNumberInPlaylist,
+        int32_t &lastSeqNumberInPlaylist) {
+    // start at least 3 target durations from the end.
+    int64_t timeFromEnd = 0;
+    size_t index = mPlaylist->size();
+    sp<AMessage> itemMeta;
+    int64_t itemDurationUs;
+    int32_t targetDuration;
+    if (mPlaylist->meta()->findInt32("target-duration", &targetDuration)) {
+        do {
+            --index;
+            if (!mPlaylist->itemAt(index, NULL /* uri */, &itemMeta)
+                    || !itemMeta->findInt64("durationUs", &itemDurationUs)) {
+                ALOGW("item or itemDurationUs missing");
+                mSeqNumber = lastSeqNumberInPlaylist - 3;
+                break;
+            }
+
+            timeFromEnd += itemDurationUs;
+            mSeqNumber = firstSeqNumberInPlaylist + index;
+        } while (timeFromEnd < targetDuration * 3E6 && index > 0);
+    } else {
+        ALOGW("target-duration missing");
+        mSeqNumber = lastSeqNumberInPlaylist - 3;
+    }
+
+    if (mSeqNumber < firstSeqNumberInPlaylist) {
+        mSeqNumber = firstSeqNumberInPlaylist;
+    }
+}
+
 bool PlaylistFetcher::initDownloadState(
         AString &uri,
         sp<AMessage> &itemMeta,
@@ -982,11 +1014,8 @@
 
         if (mSegmentStartTimeUs < 0) {
             if (!mPlaylist->isComplete() && !mPlaylist->isEvent()) {
-                // If this is a live session, start 3 segments from the end on connect
-                mSeqNumber = lastSeqNumberInPlaylist - 3;
-                if (mSeqNumber < firstSeqNumberInPlaylist) {
-                    mSeqNumber = firstSeqNumberInPlaylist;
-                }
+                // this is a live session
+                initSeqNumberForLiveStream(firstSeqNumberInPlaylist, lastSeqNumberInPlaylist);
             } else {
                 // When seeking mSegmentStartTimeUs is unavailable (< 0), we
                 // use mStartTimeUs (client supplied timestamp) to determine both start segment
diff --git a/media/libstagefright/httplive/PlaylistFetcher.h b/media/libstagefright/httplive/PlaylistFetcher.h
index c8ca457..ee7d3a1 100644
--- a/media/libstagefright/httplive/PlaylistFetcher.h
+++ b/media/libstagefright/httplive/PlaylistFetcher.h
@@ -218,6 +218,9 @@
     void onStop(const sp<AMessage> &msg);
     void onMonitorQueue();
     void onDownloadNext();
+    void initSeqNumberForLiveStream(
+            int32_t &firstSeqNumberInPlaylist,
+            int32_t &lastSeqNumberInPlaylist);
     bool initDownloadState(
             AString &uri,
             sp<AMessage> &itemMeta,
diff --git a/media/libstagefright/id3/Android.mk b/media/libstagefright/id3/Android.mk
index bd2e459..827703e 100644
--- a/media/libstagefright/id3/Android.mk
+++ b/media/libstagefright/id3/Android.mk
@@ -5,8 +5,8 @@
 	ID3.cpp
 
 LOCAL_CFLAGS += -Werror -Wall
-LOCAL_CLANG := true
-LOCAL_SANITIZE := unsigned-integer-overflow signed-integer-overflow
+LOCAL_SANITIZE := unsigned-integer-overflow signed-integer-overflow cfi
+LOCAL_SANITIZE_DIAG := cfi
 
 LOCAL_SHARED_LIBRARIES := libmedia
 
@@ -22,7 +22,6 @@
 	testid3.cpp
 
 LOCAL_CFLAGS += -Werror -Wall
-LOCAL_CLANG := true
 
 LOCAL_SHARED_LIBRARIES := \
 	libstagefright libutils liblog libbinder libstagefright_foundation
diff --git a/media/libstagefright/id3/ID3.cpp b/media/libstagefright/id3/ID3.cpp
index 40d2e2b..8d1ad66 100644
--- a/media/libstagefright/id3/ID3.cpp
+++ b/media/libstagefright/id3/ID3.cpp
@@ -521,7 +521,7 @@
         if (mOffset == 126 || mOffset == 127) {
             // Special treatment for the track number and genre.
             char tmp[16];
-            sprintf(tmp, "%d", (int)*frameData);
+            snprintf(tmp, sizeof(tmp), "%d", (int)*frameData);
 
             id->setTo(tmp);
             return;
diff --git a/media/libstagefright/id3/testid3.cpp b/media/libstagefright/id3/testid3.cpp
index b2f4188..442a3ff 100644
--- a/media/libstagefright/id3/testid3.cpp
+++ b/media/libstagefright/id3/testid3.cpp
@@ -154,8 +154,6 @@
 int main(int argc, char **argv) {
     android::ProcessState::self()->startThreadPool();
 
-    DataSource::RegisterDefaultSniffers();
-
     for (int i = 1; i < argc; ++i) {
         scan(argv[i]);
     }
diff --git a/include/media/stagefright/AACWriter.h b/media/libstagefright/include/AACWriter.h
similarity index 100%
rename from include/media/stagefright/AACWriter.h
rename to media/libstagefright/include/AACWriter.h
diff --git a/media/libstagefright/include/ACodec.h b/media/libstagefright/include/ACodec.h
new file mode 100644
index 0000000..998716f
--- /dev/null
+++ b/media/libstagefright/include/ACodec.h
@@ -0,0 +1,560 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef A_CODEC_H_
+
+#define A_CODEC_H_
+
+#include <stdint.h>
+#include <android/native_window.h>
+#include <media/hardware/MetadataBufferType.h>
+#include <media/IOMX.h>
+#include <media/stagefright/foundation/AHierarchicalStateMachine.h>
+#include <media/stagefright/CodecBase.h>
+#include <media/stagefright/FrameRenderTracker.h>
+#include <media/stagefright/MediaDefs.h>
+#include <media/stagefright/SkipCutBuffer.h>
+#include <utils/NativeHandle.h>
+#include <OMX_Audio.h>
+#include <hardware/gralloc.h>
+
+#define TRACK_BUFFER_TIMING     0
+
+namespace android {
+
+struct ABuffer;
+class ACodecBufferChannel;
+class MediaCodecBuffer;
+class MemoryDealer;
+struct DescribeColorFormat2Params;
+struct DataConverter;
+
+// Treble shared memory
+namespace hidl {
+namespace allocator {
+namespace V1_0 {
+struct IAllocator;
+} // V1_0
+} // allocator
+namespace memory {
+namespace V1_0 {
+struct IMemory;
+} // V1_0
+} // memory
+} // hidl
+
+typedef hidl::allocator::V1_0::IAllocator TAllocator;
+typedef hidl::memory::V1_0::IMemory TMemory;
+
+struct ACodec : public AHierarchicalStateMachine, public CodecBase {
+    ACodec();
+
+    void initiateSetup(const sp<AMessage> &msg);
+
+    virtual std::shared_ptr<BufferChannelBase> getBufferChannel() override;
+    virtual void initiateAllocateComponent(const sp<AMessage> &msg);
+    virtual void initiateConfigureComponent(const sp<AMessage> &msg);
+    virtual void initiateCreateInputSurface();
+    virtual void initiateSetInputSurface(const sp<PersistentSurface> &surface);
+    virtual void initiateStart();
+    virtual void initiateShutdown(bool keepComponentAllocated = false);
+
+    virtual status_t queryCapabilities(
+            const AString &name, const AString &mime, bool isEncoder,
+            sp<MediaCodecInfo::Capabilities> *caps);
+
+    virtual status_t setSurface(const sp<Surface> &surface);
+
+    virtual void signalFlush();
+    virtual void signalResume();
+
+    virtual void signalSetParameters(const sp<AMessage> &msg);
+    virtual void signalEndOfInputStream();
+    virtual void signalRequestIDRFrame();
+
+    // AHierarchicalStateMachine implements the message handling
+    virtual void onMessageReceived(const sp<AMessage> &msg) {
+        handleMessage(msg);
+    }
+
+    // Returns 0 if configuration is not supported.  NOTE: this is treated by
+    // some OMX components as auto level, and by others as invalid level.
+    static int /* OMX_VIDEO_AVCLEVELTYPE */ getAVCLevelFor(
+            int width, int height, int rate, int bitrate,
+            OMX_VIDEO_AVCPROFILETYPE profile = OMX_VIDEO_AVCProfileBaseline);
+
+    // Quirk still supported, even though deprecated
+    enum Quirks {
+        kRequiresAllocateBufferOnInputPorts   = 1,
+        kRequiresAllocateBufferOnOutputPorts  = 2,
+    };
+
+    static status_t getOMXChannelMapping(size_t numChannels, OMX_AUDIO_CHANNELTYPE map[]);
+
+    // Save the flag.
+    void setTrebleFlag(bool trebleFlag);
+    // Return the saved flag.
+    bool getTrebleFlag() const;
+
+protected:
+    virtual ~ACodec();
+
+private:
+    struct BaseState;
+    struct UninitializedState;
+    struct LoadedState;
+    struct LoadedToIdleState;
+    struct IdleToExecutingState;
+    struct ExecutingState;
+    struct OutputPortSettingsChangedState;
+    struct ExecutingToIdleState;
+    struct IdleToLoadedState;
+    struct FlushingState;
+    struct DeathNotifier;
+
+    enum {
+        kWhatSetup                   = 'setu',
+        kWhatOMXMessage              = 'omx ',
+        // same as kWhatOMXMessage - but only used with
+        // handleMessage during OMX message-list handling
+        kWhatOMXMessageItem          = 'omxI',
+        kWhatOMXMessageList          = 'omxL',
+        kWhatInputBufferFilled       = 'inpF',
+        kWhatOutputBufferDrained     = 'outD',
+        kWhatShutdown                = 'shut',
+        kWhatFlush                   = 'flus',
+        kWhatResume                  = 'resm',
+        kWhatDrainDeferredMessages   = 'drai',
+        kWhatAllocateComponent       = 'allo',
+        kWhatConfigureComponent      = 'conf',
+        kWhatSetSurface              = 'setS',
+        kWhatCreateInputSurface      = 'cisf',
+        kWhatSetInputSurface         = 'sisf',
+        kWhatSignalEndOfInputStream  = 'eois',
+        kWhatStart                   = 'star',
+        kWhatRequestIDRFrame         = 'ridr',
+        kWhatSetParameters           = 'setP',
+        kWhatSubmitOutputMetadataBufferIfEOS = 'subm',
+        kWhatOMXDied                 = 'OMXd',
+        kWhatReleaseCodecInstance    = 'relC',
+    };
+
+    enum {
+        kPortIndexInput  = 0,
+        kPortIndexOutput = 1
+    };
+
+    enum {
+        kFlagIsSecure                                 = 1,
+        kFlagPushBlankBuffersToNativeWindowOnShutdown = 2,
+        kFlagIsGrallocUsageProtected                  = 4,
+    };
+
+    enum {
+        kVideoGrallocUsage = (GRALLOC_USAGE_HW_TEXTURE
+                            | GRALLOC_USAGE_HW_COMPOSER
+                            | GRALLOC_USAGE_EXTERNAL_DISP),
+    };
+
+    struct BufferInfo {
+        enum Status {
+            OWNED_BY_US,
+            OWNED_BY_COMPONENT,
+            OWNED_BY_UPSTREAM,
+            OWNED_BY_DOWNSTREAM,
+            OWNED_BY_NATIVE_WINDOW,
+            UNRECOGNIZED,            // not a tracked buffer
+        };
+
+        static inline Status getSafeStatus(BufferInfo *info) {
+            return info == NULL ? UNRECOGNIZED : info->mStatus;
+        }
+
+        IOMX::buffer_id mBufferID;
+        Status mStatus;
+        unsigned mDequeuedAt;
+
+        sp<MediaCodecBuffer> mData;  // the client's buffer; if not using data conversion, this is
+                                     // the codec buffer; otherwise, it is allocated separately
+        sp<RefBase> mMemRef;         // and a reference to the IMemory, so it does not go away
+        sp<MediaCodecBuffer> mCodecData;  // the codec's buffer
+        sp<RefBase> mCodecRef;            // and a reference to the IMemory
+
+        sp<GraphicBuffer> mGraphicBuffer;
+        bool mNewGraphicBuffer;
+        int mFenceFd;
+        FrameRenderTracker::Info *mRenderInfo;
+
+        // The following field and 4 methods are used for debugging only
+        bool mIsReadFence;
+        // Store |fenceFd| and set read/write flag. Log error, if there is already a fence stored.
+        void setReadFence(int fenceFd, const char *dbg);
+        void setWriteFence(int fenceFd, const char *dbg);
+        // Log error, if the current fence is not a read/write fence.
+        void checkReadFence(const char *dbg);
+        void checkWriteFence(const char *dbg);
+    };
+
+    static const char *_asString(BufferInfo::Status s);
+    void dumpBuffers(OMX_U32 portIndex);
+
+    // If |fd| is non-negative, waits for fence with |fd| and logs an error if it fails. Returns
+    // the error code or OK on success. If |fd| is negative, it returns OK
+    status_t waitForFence(int fd, const char *dbg);
+
+#if TRACK_BUFFER_TIMING
+    struct BufferStats {
+        int64_t mEmptyBufferTimeUs;
+        int64_t mFillBufferDoneTimeUs;
+    };
+
+    KeyedVector<int64_t, BufferStats> mBufferStats;
+#endif
+
+    sp<UninitializedState> mUninitializedState;
+    sp<LoadedState> mLoadedState;
+    sp<LoadedToIdleState> mLoadedToIdleState;
+    sp<IdleToExecutingState> mIdleToExecutingState;
+    sp<ExecutingState> mExecutingState;
+    sp<OutputPortSettingsChangedState> mOutputPortSettingsChangedState;
+    sp<ExecutingToIdleState> mExecutingToIdleState;
+    sp<IdleToLoadedState> mIdleToLoadedState;
+    sp<FlushingState> mFlushingState;
+    sp<SkipCutBuffer> mSkipCutBuffer;
+    int32_t mSampleRate;
+
+    AString mComponentName;
+    uint32_t mFlags;
+    sp<IOMX> mOMX;
+    sp<IOMXNode> mOMXNode;
+    int32_t mNodeGeneration;
+    bool mTrebleFlag;
+    sp<TAllocator> mAllocator[2];
+    sp<MemoryDealer> mDealer[2];
+
+    bool mUsingNativeWindow;
+    sp<ANativeWindow> mNativeWindow;
+    int mNativeWindowUsageBits;
+    android_native_rect_t mLastNativeWindowCrop;
+    int32_t mLastNativeWindowDataSpace;
+    sp<AMessage> mConfigFormat;
+    sp<AMessage> mInputFormat;
+    sp<AMessage> mOutputFormat;
+
+    // Initial output format + configuration params that is reused as the base for all subsequent
+    // format updates. This will equal to mOutputFormat until the first actual frame is received.
+    sp<AMessage> mBaseOutputFormat;
+
+    FrameRenderTracker mRenderTracker; // render information for buffers rendered by ACodec
+    Vector<BufferInfo> mBuffers[2];
+    bool mPortEOS[2];
+    status_t mInputEOSResult;
+
+    List<sp<AMessage> > mDeferredQueue;
+
+    sp<AMessage> mLastOutputFormat;
+    bool mIsVideo;
+    bool mIsEncoder;
+    bool mFatalError;
+    bool mShutdownInProgress;
+    bool mExplicitShutdown;
+    bool mIsLegacyVP9Decoder;
+
+    // If "mKeepComponentAllocated" we only transition back to Loaded state
+    // and do not release the component instance.
+    bool mKeepComponentAllocated;
+
+    int32_t mEncoderDelay;
+    int32_t mEncoderPadding;
+    int32_t mRotationDegrees;
+
+    bool mChannelMaskPresent;
+    int32_t mChannelMask;
+    unsigned mDequeueCounter;
+    IOMX::PortMode mPortMode[2];
+    int32_t mMetadataBuffersToSubmit;
+    size_t mNumUndequeuedBuffers;
+    sp<DataConverter> mConverter[2];
+
+    sp<IGraphicBufferSource> mGraphicBufferSource;
+    int64_t mRepeatFrameDelayUs;
+    int64_t mMaxPtsGapUs;
+    float mMaxFps;
+    int64_t mTimePerFrameUs;
+    int64_t mTimePerCaptureUs;
+    bool mCreateInputBuffersSuspended;
+
+    bool mTunneled;
+
+    OMX_INDEXTYPE mDescribeColorAspectsIndex;
+    OMX_INDEXTYPE mDescribeHDRStaticInfoIndex;
+
+    std::shared_ptr<ACodecBufferChannel> mBufferChannel;
+
+    status_t setCyclicIntraMacroblockRefresh(const sp<AMessage> &msg, int32_t mode);
+    status_t allocateBuffersOnPort(OMX_U32 portIndex);
+    status_t freeBuffersOnPort(OMX_U32 portIndex);
+    status_t freeBuffer(OMX_U32 portIndex, size_t i);
+
+    status_t handleSetSurface(const sp<Surface> &surface);
+    status_t setPortMode(int32_t portIndex, IOMX::PortMode mode);
+    status_t setupNativeWindowSizeFormatAndUsage(
+            ANativeWindow *nativeWindow /* nonnull */, int *finalUsage /* nonnull */,
+            bool reconnect);
+
+    status_t configureOutputBuffersFromNativeWindow(
+            OMX_U32 *nBufferCount, OMX_U32 *nBufferSize,
+            OMX_U32 *nMinUndequeuedBuffers, bool preregister);
+    status_t allocateOutputMetadataBuffers();
+    status_t submitOutputMetadataBuffer();
+    void signalSubmitOutputMetadataBufferIfEOS_workaround();
+    status_t allocateOutputBuffersFromNativeWindow();
+    status_t cancelBufferToNativeWindow(BufferInfo *info);
+    status_t freeOutputBuffersNotOwnedByComponent();
+    BufferInfo *dequeueBufferFromNativeWindow();
+
+    inline bool storingMetadataInDecodedBuffers() {
+        return (mPortMode[kPortIndexOutput] == IOMX::kPortModeDynamicANWBuffer) && !mIsEncoder;
+    }
+
+    inline bool usingSecureBufferOnEncoderOutput() {
+        return (mPortMode[kPortIndexOutput] == IOMX::kPortModePresetSecureBuffer) && mIsEncoder;
+    }
+
+    BufferInfo *findBufferByID(
+            uint32_t portIndex, IOMX::buffer_id bufferID,
+            ssize_t *index = NULL);
+
+    status_t fillBuffer(BufferInfo *info);
+
+    status_t setComponentRole(bool isEncoder, const char *mime);
+
+    status_t configureCodec(const char *mime, const sp<AMessage> &msg);
+
+    status_t configureTunneledVideoPlayback(int32_t audioHwSync,
+            const sp<ANativeWindow> &nativeWindow);
+
+    status_t setVideoPortFormatType(
+            OMX_U32 portIndex,
+            OMX_VIDEO_CODINGTYPE compressionFormat,
+            OMX_COLOR_FORMATTYPE colorFormat,
+            bool usingNativeBuffers = false);
+
+    status_t setSupportedOutputFormat(bool getLegacyFlexibleFormat);
+
+    status_t setupVideoDecoder(
+            const char *mime, const sp<AMessage> &msg, bool usingNativeBuffers, bool haveSwRenderer,
+            sp<AMessage> &outputformat);
+
+    status_t setupVideoEncoder(
+            const char *mime, const sp<AMessage> &msg,
+            sp<AMessage> &outputformat, sp<AMessage> &inputformat);
+
+    status_t setVideoFormatOnPort(
+            OMX_U32 portIndex,
+            int32_t width, int32_t height,
+            OMX_VIDEO_CODINGTYPE compressionFormat, float frameRate = -1.0);
+
+    // sets |portIndex| port buffer numbers to be |bufferNum|. NOTE: Component could reject
+    // this setting if the |bufferNum| is less than the minimum buffer num of the port.
+    status_t setPortBufferNum(OMX_U32 portIndex, int bufferNum);
+
+    // gets index or sets it to 0 on error. Returns error from codec.
+    status_t initDescribeColorAspectsIndex();
+
+    // sets |params|. If |readBack| is true, it re-gets them afterwards if set succeeded.
+    // returns the codec error.
+    status_t setCodecColorAspects(DescribeColorAspectsParams &params, bool readBack = false);
+
+    // gets |params|; returns the codec error. |param| should not change on error.
+    status_t getCodecColorAspects(DescribeColorAspectsParams &params);
+
+    // gets dataspace guidance from codec and platform. |params| should be set up with the color
+    // aspects to use. If |tryCodec| is true, the codec is queried first. If it succeeds, we
+    // return OK. Otherwise, we fall back to the platform guidance and return the codec error;
+    // though, we return OK if the codec failed with UNSUPPORTED, as codec guidance is optional.
+    status_t getDataSpace(
+            DescribeColorAspectsParams &params, android_dataspace *dataSpace /* nonnull */,
+            bool tryCodec);
+
+    // sets color aspects for the encoder for certain |width/height| based on |configFormat|, and
+    // set resulting color config into |outputFormat|. If |usingNativeWindow| is true, we use
+    // video defaults if config is unspecified. Returns error from the codec.
+    status_t setColorAspectsForVideoDecoder(
+            int32_t width, int32_t height, bool usingNativeWindow,
+            const sp<AMessage> &configFormat, sp<AMessage> &outputFormat);
+
+    // gets color aspects for the encoder for certain |width/height| based on |configFormat|, and
+    // set resulting color config into |outputFormat|. If |dataSpace| is non-null, it requests
+    // dataspace guidance from the codec and platform and sets it into |dataSpace|. Returns the
+    // error from the codec.
+    status_t getColorAspectsAndDataSpaceForVideoDecoder(
+            int32_t width, int32_t height, const sp<AMessage> &configFormat,
+            sp<AMessage> &outputFormat, android_dataspace *dataSpace);
+
+    // sets color aspects for the video encoder assuming bytebuffer mode for certain |configFormat|
+    // and sets resulting color config into |outputFormat|. For mediarecorder, also set dataspace
+    // into |inputFormat|. Returns the error from the codec.
+    status_t setColorAspectsForVideoEncoder(
+            const sp<AMessage> &configFormat,
+            sp<AMessage> &outputFormat, sp<AMessage> &inputFormat);
+
+    // sets color aspects for the video encoder in surface mode. This basically sets the default
+    // video values for unspecified aspects and sets the dataspace to use in the input format.
+    // Also sets the dataspace into |dataSpace|.
+    // Returns any codec errors during this configuration, except for optional steps.
+    status_t setInitialColorAspectsForVideoEncoderSurfaceAndGetDataSpace(
+            android_dataspace *dataSpace /* nonnull */);
+
+    // gets color aspects for the video encoder input port and sets them into the |format|.
+    // Returns any codec errors.
+    status_t getInputColorAspectsForVideoEncoder(sp<AMessage> &format);
+
+    // updates the encoder output format with |aspects| defaulting to |dataSpace| for
+    // unspecified values.
+    void onDataSpaceChanged(android_dataspace dataSpace, const ColorAspects &aspects);
+
+    // gets index or sets it to 0 on error. Returns error from codec.
+    status_t initDescribeHDRStaticInfoIndex();
+
+    // sets HDR static metadata for the video encoder/decoder based on |configFormat|, and
+    // sets resulting HDRStaticInfo config into |outputFormat|. Returns error from the codec.
+    status_t setHDRStaticInfoForVideoCodec(
+            OMX_U32 portIndex, const sp<AMessage> &configFormat, sp<AMessage> &outputFormat);
+
+    // sets |params|. Returns the codec error.
+    status_t setHDRStaticInfo(const DescribeHDRStaticInfoParams &params);
+
+    // gets |params|. Returns the codec error.
+    status_t getHDRStaticInfo(DescribeHDRStaticInfoParams &params);
+
+    // gets HDR static information for the video encoder/decoder port and sets them into |format|.
+    status_t getHDRStaticInfoForVideoCodec(OMX_U32 portIndex, sp<AMessage> &format);
+
+    typedef struct drcParams {
+        int32_t drcCut;
+        int32_t drcBoost;
+        int32_t heavyCompression;
+        int32_t targetRefLevel;
+        int32_t encodedTargetLevel;
+    } drcParams_t;
+
+    status_t setupAACCodec(
+            bool encoder,
+            int32_t numChannels, int32_t sampleRate, int32_t bitRate,
+            int32_t aacProfile, bool isADTS, int32_t sbrMode,
+            int32_t maxOutputChannelCount, const drcParams_t& drc,
+            int32_t pcmLimiterEnable);
+
+    status_t setupAC3Codec(bool encoder, int32_t numChannels, int32_t sampleRate);
+
+    status_t setupEAC3Codec(bool encoder, int32_t numChannels, int32_t sampleRate);
+
+    status_t selectAudioPortFormat(
+            OMX_U32 portIndex, OMX_AUDIO_CODINGTYPE desiredFormat);
+
+    status_t setupAMRCodec(bool encoder, bool isWAMR, int32_t bitRate);
+    status_t setupG711Codec(bool encoder, int32_t sampleRate, int32_t numChannels);
+
+    status_t setupFlacCodec(
+            bool encoder, int32_t numChannels, int32_t sampleRate, int32_t compressionLevel);
+
+    status_t setupRawAudioFormat(
+            OMX_U32 portIndex, int32_t sampleRate, int32_t numChannels,
+            AudioEncoding encoding = kAudioEncodingPcm16bit);
+
+    status_t setPriority(int32_t priority);
+    status_t setOperatingRate(float rateFloat, bool isVideo);
+    status_t getIntraRefreshPeriod(uint32_t *intraRefreshPeriod);
+    status_t setIntraRefreshPeriod(uint32_t intraRefreshPeriod, bool inConfigure);
+
+    // Configures temporal layering based on |msg|. |inConfigure| shall be true iff this is called
+    // during configure() call. on success the configured layering is set in |outputFormat|. If
+    // |outputFormat| is mOutputFormat, it is copied to trigger an output format changed event.
+    status_t configureTemporalLayers(
+            const sp<AMessage> &msg, bool inConfigure, sp<AMessage> &outputFormat);
+
+    status_t setMinBufferSize(OMX_U32 portIndex, size_t size);
+
+    status_t setupMPEG4EncoderParameters(const sp<AMessage> &msg);
+    status_t setupH263EncoderParameters(const sp<AMessage> &msg);
+    status_t setupAVCEncoderParameters(const sp<AMessage> &msg);
+    status_t setupHEVCEncoderParameters(const sp<AMessage> &msg);
+    status_t setupVPXEncoderParameters(const sp<AMessage> &msg, sp<AMessage> &outputFormat);
+
+    status_t verifySupportForProfileAndLevel(int32_t profile, int32_t level);
+
+    status_t configureBitrate(
+            int32_t bitrate, OMX_VIDEO_CONTROLRATETYPE bitrateMode);
+
+    status_t setupErrorCorrectionParameters();
+
+    // Returns true iff all buffers on the given port have status
+    // OWNED_BY_US or OWNED_BY_NATIVE_WINDOW.
+    bool allYourBuffersAreBelongToUs(OMX_U32 portIndex);
+
+    bool allYourBuffersAreBelongToUs();
+
+    void waitUntilAllPossibleNativeWindowBuffersAreReturnedToUs();
+
+    size_t countBuffersOwnedByComponent(OMX_U32 portIndex) const;
+    size_t countBuffersOwnedByNativeWindow() const;
+
+    void deferMessage(const sp<AMessage> &msg);
+    void processDeferredMessages();
+
+    void onFrameRendered(int64_t mediaTimeUs, nsecs_t systemNano);
+    // called when we have dequeued a buffer |buf| from the native window to track render info.
+    // |fenceFd| is the dequeue fence, and |info| points to the buffer info where this buffer is
+    // stored.
+    void updateRenderInfoForDequeuedBuffer(
+            ANativeWindowBuffer *buf, int fenceFd, BufferInfo *info);
+
+    // Checks to see if any frames have rendered up until |until|, and to notify client
+    // (MediaCodec) of rendered frames up-until the frame pointed to by |until| or the first
+    // unrendered frame. These frames are removed from the render queue.
+    // If |dropIncomplete| is true, unrendered frames up-until |until| will be dropped from the
+    // queue, allowing all rendered framed up till then to be notified of.
+    // (This will effectively clear the render queue up-until (and including) |until|.)
+    // If |until| is NULL, or is not in the rendered queue, this method will check all frames.
+    void notifyOfRenderedFrames(
+            bool dropIncomplete = false, FrameRenderTracker::Info *until = NULL);
+
+    // Pass |expectedFormat| to print a warning if the format differs from it.
+    // Using sp<> instead of const sp<>& because expectedFormat is likely the current mOutputFormat
+    // which will get updated inside.
+    void onOutputFormatChanged(sp<const AMessage> expectedFormat = NULL);
+    void addKeyFormatChangesToRenderBufferNotification(sp<AMessage> &notify);
+    void sendFormatChange();
+
+    status_t getPortFormat(OMX_U32 portIndex, sp<AMessage> &notify);
+
+    void signalError(
+            OMX_ERRORTYPE error = OMX_ErrorUndefined,
+            status_t internalError = UNKNOWN_ERROR);
+
+    status_t requestIDRFrame();
+    status_t setParameters(const sp<AMessage> &params);
+
+    // Send EOS on input stream.
+    void onSignalEndOfInputStream();
+
+    DISALLOW_EVIL_CONSTRUCTORS(ACodec);
+};
+
+}  // namespace android
+
+#endif  // A_CODEC_H_
diff --git a/media/libstagefright/include/ACodecBufferChannel.h b/media/libstagefright/include/ACodecBufferChannel.h
new file mode 100644
index 0000000..02468c1
--- /dev/null
+++ b/media/libstagefright/include/ACodecBufferChannel.h
@@ -0,0 +1,137 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef A_BUFFER_CHANNEL_H_
+
+#define A_BUFFER_CHANNEL_H_
+
+#include <map>
+#include <memory>
+#include <mutex>
+#include <vector>
+
+#include <media/openmax/OMX_Types.h>
+#include <media/stagefright/CodecBase.h>
+#include <media/ICrypto.h>
+#include <media/IOMX.h>
+
+namespace android {
+
+/**
+ * BufferChannelBase implementation for ACodec.
+ */
+class ACodecBufferChannel : public BufferChannelBase {
+public:
+    struct BufferAndId {
+        sp<MediaCodecBuffer> mBuffer;
+        IOMX::buffer_id mBufferId;
+    };
+
+    struct BufferInfo {
+        BufferInfo(
+                const sp<MediaCodecBuffer> &buffer,
+                IOMX::buffer_id bufferId,
+                const sp<IMemory> &sharedEncryptedBuffer);
+
+        BufferInfo() = delete;
+
+        // Buffer facing MediaCodec and its clients.
+        const sp<MediaCodecBuffer> mClientBuffer;
+        // Buffer facing CodecBase.
+        const sp<MediaCodecBuffer> mCodecBuffer;
+        // OMX buffer ID.
+        const IOMX::buffer_id mBufferId;
+        // Encrypted buffer in case of secure input.
+        const sp<IMemory> mSharedEncryptedBuffer;
+    };
+
+    ACodecBufferChannel(
+            const sp<AMessage> &inputBufferFilled, const sp<AMessage> &outputBufferDrained);
+    virtual ~ACodecBufferChannel() = default;
+
+    // BufferChannelBase interface
+    virtual status_t queueInputBuffer(const sp<MediaCodecBuffer> &buffer) override;
+    virtual status_t queueSecureInputBuffer(
+            const sp<MediaCodecBuffer> &buffer,
+            bool secure,
+            const uint8_t *key,
+            const uint8_t *iv,
+            CryptoPlugin::Mode mode,
+            CryptoPlugin::Pattern pattern,
+            const CryptoPlugin::SubSample *subSamples,
+            size_t numSubSamples,
+            AString *errorDetailMsg) override;
+    virtual status_t renderOutputBuffer(
+            const sp<MediaCodecBuffer> &buffer, int64_t timestampNs) override;
+    virtual status_t discardBuffer(const sp<MediaCodecBuffer> &buffer) override;
+    virtual void getInputBufferArray(Vector<sp<MediaCodecBuffer>> *array) override;
+    virtual void getOutputBufferArray(Vector<sp<MediaCodecBuffer>> *array) override;
+
+    // Methods below are interface for ACodec to use.
+
+    /**
+     * Set input buffer array.
+     *
+     * @param array     Newly allocated buffers. Empty if buffers are
+     *                  deallocated.
+     */
+    void setInputBufferArray(const std::vector<BufferAndId> &array);
+    /**
+     * Set output buffer array.
+     *
+     * @param array     Newly allocated buffers. Empty if buffers are
+     *                  deallocated.
+     */
+    void setOutputBufferArray(const std::vector<BufferAndId> &array);
+    /**
+     * Request MediaCodec to fill the specified input buffer.
+     *
+     * @param bufferId  ID of the buffer, assigned by underlying component.
+     */
+    void fillThisBuffer(IOMX::buffer_id bufferID);
+    /**
+     * Request MediaCodec to drain the specified output buffer.
+     *
+     * @param bufferId  ID of the buffer, assigned by underlying component.
+     * @param omxFlags  flags associated with this buffer (e.g. EOS).
+     */
+    void drainThisBuffer(IOMX::buffer_id bufferID, OMX_U32 omxFlags);
+
+private:
+    const sp<AMessage> mInputBufferFilled;
+    const sp<AMessage> mOutputBufferDrained;
+
+    sp<MemoryDealer> mDealer;
+    sp<IMemory> mDecryptDestination;
+
+    // These should only be accessed via std::atomic_* functions.
+    //
+    // Note on thread safety: since the vector and BufferInfo are const, it's
+    // safe to read them at any thread once the shared_ptr object is atomically
+    // obtained. Inside BufferInfo, mBufferId and mSharedEncryptedBuffer are
+    // immutable objects. We write internal states of mClient/CodecBuffer when
+    // the caller has given up the reference, so that access is also safe.
+    std::shared_ptr<const std::vector<const BufferInfo>> mInputBuffers;
+    std::shared_ptr<const std::vector<const BufferInfo>> mOutputBuffers;
+
+    bool hasCryptoOrDescrambler() {
+        return mCrypto != NULL || mDescrambler != NULL;
+    }
+};
+
+}  // namespace android
+
+#endif  // A_BUFFER_CHANNEL_H_
diff --git a/include/media/stagefright/AMRWriter.h b/media/libstagefright/include/AMRWriter.h
similarity index 100%
rename from include/media/stagefright/AMRWriter.h
rename to media/libstagefright/include/AMRWriter.h
diff --git a/include/media/stagefright/AudioPlayer.h b/media/libstagefright/include/AudioPlayer.h
similarity index 100%
rename from include/media/stagefright/AudioPlayer.h
rename to media/libstagefright/include/AudioPlayer.h
diff --git a/media/libstagefright/include/AudioSource.h b/media/libstagefright/include/AudioSource.h
new file mode 100644
index 0000000..f20c2cd
--- /dev/null
+++ b/media/libstagefright/include/AudioSource.h
@@ -0,0 +1,117 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef AUDIO_SOURCE_H_
+
+#define AUDIO_SOURCE_H_
+
+#include <media/AudioRecord.h>
+#include <media/AudioSystem.h>
+#include <media/stagefright/MediaSource.h>
+#include <media/stagefright/MediaBuffer.h>
+#include <utils/List.h>
+
+#include <system/audio.h>
+
+namespace android {
+
+class AudioRecord;
+
+struct AudioSource : public MediaSource, public MediaBufferObserver {
+    // Note that the "channels" parameter _is_ the number of channels,
+    // _not_ a bitmask of audio_channels_t constants.
+    AudioSource(
+            audio_source_t inputSource,
+            const String16 &opPackageName,
+            uint32_t sampleRate,
+            uint32_t channels,
+            uint32_t outSampleRate = 0,
+            uid_t uid = -1,
+            pid_t pid = -1);
+
+    status_t initCheck() const;
+
+    virtual status_t start(MetaData *params = NULL);
+    virtual status_t stop() { return reset(); }
+    virtual sp<MetaData> getFormat();
+
+    // Returns the maximum amplitude since last call.
+    int16_t getMaxAmplitude();
+
+    virtual status_t read(
+            MediaBuffer **buffer, const ReadOptions *options = NULL);
+
+    status_t dataCallback(const AudioRecord::Buffer& buffer);
+    virtual void signalBufferReturned(MediaBuffer *buffer);
+
+protected:
+    virtual ~AudioSource();
+
+private:
+    enum {
+        kMaxBufferSize = 2048,
+
+        // After the initial mute, we raise the volume linearly
+        // over kAutoRampDurationUs.
+        kAutoRampDurationUs = 300000,
+
+        // This is the initial mute duration to suppress
+        // the video recording signal tone
+        kAutoRampStartUs = 0,
+    };
+
+    Mutex mLock;
+    Condition mFrameAvailableCondition;
+    Condition mFrameEncodingCompletionCondition;
+
+    sp<AudioRecord> mRecord;
+    status_t mInitCheck;
+    bool mStarted;
+    int32_t mSampleRate;
+    int32_t mOutSampleRate;
+
+    bool mTrackMaxAmplitude;
+    int64_t mStartTimeUs;
+    int16_t mMaxAmplitude;
+    int64_t mPrevSampleTimeUs;
+    int64_t mInitialReadTimeUs;
+    int64_t mNumFramesReceived;
+    int64_t mNumFramesSkipped;
+    int64_t mNumFramesLost;
+    int64_t mNumClientOwnedBuffers;
+
+    List<MediaBuffer * > mBuffersReceived;
+
+    void trackMaxAmplitude(int16_t *data, int nSamples);
+
+    // This is used to raise the volume from mute to the
+    // actual level linearly.
+    void rampVolume(
+        int32_t startFrame, int32_t rampDurationFrames,
+        uint8_t *data,   size_t bytes);
+
+    void queueInputBuffer_l(MediaBuffer *buffer, int64_t timeUs);
+    void releaseQueuedFrames_l();
+    void waitOutstandingEncodingFrames_l();
+    status_t reset();
+
+    AudioSource(const AudioSource &);
+    AudioSource &operator=(const AudioSource &);
+};
+
+}  // namespace android
+
+#endif  // AUDIO_SOURCE_H_
diff --git a/include/media/stagefright/BufferProducerWrapper.h b/media/libstagefright/include/BufferProducerWrapper.h
similarity index 100%
rename from include/media/stagefright/BufferProducerWrapper.h
rename to media/libstagefright/include/BufferProducerWrapper.h
diff --git a/include/media/stagefright/CameraSource.h b/media/libstagefright/include/CameraSource.h
similarity index 100%
rename from include/media/stagefright/CameraSource.h
rename to media/libstagefright/include/CameraSource.h
diff --git a/include/media/stagefright/CameraSourceTimeLapse.h b/media/libstagefright/include/CameraSourceTimeLapse.h
similarity index 100%
rename from include/media/stagefright/CameraSourceTimeLapse.h
rename to media/libstagefright/include/CameraSourceTimeLapse.h
diff --git a/media/libstagefright/include/CodecBase.h b/media/libstagefright/include/CodecBase.h
new file mode 100644
index 0000000..845146d
--- /dev/null
+++ b/media/libstagefright/include/CodecBase.h
@@ -0,0 +1,331 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef CODEC_BASE_H_
+
+#define CODEC_BASE_H_
+
+#include <memory>
+
+#include <stdint.h>
+
+#define STRINGIFY_ENUMS
+
+#include <media/ICrypto.h>
+#include <media/IOMX.h>
+#include <media/MediaCodecInfo.h>
+#include <media/stagefright/MediaErrors.h>
+#include <media/stagefright/foundation/AHandler.h>
+#include <media/stagefright/foundation/ColorUtils.h>
+#include <media/hardware/HardwareAPI.h>
+
+#include <utils/NativeHandle.h>
+
+#include <system/graphics.h>
+#include <android/media/IDescrambler.h>
+
+namespace android {
+using namespace media;
+class BufferChannelBase;
+class BufferProducerWrapper;
+class MediaCodecBuffer;
+struct PersistentSurface;
+struct RenderedFrameInfo;
+class Surface;
+
+struct CodecBase : public AHandler, /* static */ ColorUtils {
+    /**
+     * This interface defines events firing from CodecBase back to MediaCodec.
+     * All methods must not block.
+     */
+    class CodecCallback {
+    public:
+        virtual ~CodecCallback() = default;
+
+        /**
+         * Notify MediaCodec for seeing an output EOS.
+         *
+         * @param err the underlying cause of the EOS. If the value is neither
+         *            OK nor ERROR_END_OF_STREAM, the EOS is declared
+         *            prematurely for that error.
+         */
+        virtual void onEos(status_t err) = 0;
+        /**
+         * Notify MediaCodec that start operation is complete.
+         */
+        virtual void onStartCompleted() = 0;
+        /**
+         * Notify MediaCodec that stop operation is complete.
+         */
+        virtual void onStopCompleted() = 0;
+        /**
+         * Notify MediaCodec that release operation is complete.
+         */
+        virtual void onReleaseCompleted() = 0;
+        /**
+         * Notify MediaCodec that flush operation is complete.
+         */
+        virtual void onFlushCompleted() = 0;
+        /**
+         * Notify MediaCodec that an error is occurred.
+         *
+         * @param err         an error code for the occurred error.
+         * @param actionCode  an action code for severity of the error.
+         */
+        virtual void onError(status_t err, enum ActionCode actionCode) = 0;
+        /**
+         * Notify MediaCodec that the underlying component is allocated.
+         *
+         * @param componentName the unique name of the component specified in
+         *                      MediaCodecList.
+         */
+        virtual void onComponentAllocated(const char *componentName) = 0;
+        /**
+         * Notify MediaCodec that the underlying component is configured.
+         *
+         * @param inputFormat   an input format at configure time.
+         * @param outputFormat  an output format at configure time.
+         */
+        virtual void onComponentConfigured(
+                const sp<AMessage> &inputFormat, const sp<AMessage> &outputFormat) = 0;
+        /**
+         * Notify MediaCodec that the input surface is created.
+         *
+         * @param inputFormat   an input format at surface creation. Formats
+         *                      could change from the previous state as a result
+         *                      of creating a surface.
+         * @param outputFormat  an output format at surface creation.
+         * @param inputSurface  the created surface.
+         */
+        virtual void onInputSurfaceCreated(
+                const sp<AMessage> &inputFormat,
+                const sp<AMessage> &outputFormat,
+                const sp<BufferProducerWrapper> &inputSurface) = 0;
+        /**
+         * Notify MediaCodec that the input surface creation is failed.
+         *
+         * @param err an error code of the cause.
+         */
+        virtual void onInputSurfaceCreationFailed(status_t err) = 0;
+        /**
+         * Notify MediaCodec that the component accepted the provided input
+         * surface.
+         *
+         * @param inputFormat   an input format at surface assignment. Formats
+         *                      could change from the previous state as a result
+         *                      of assigning a surface.
+         * @param outputFormat  an output format at surface assignment.
+         */
+        virtual void onInputSurfaceAccepted(
+                const sp<AMessage> &inputFormat,
+                const sp<AMessage> &outputFormat) = 0;
+        /**
+         * Notify MediaCodec that the component declined the provided input
+         * surface.
+         *
+         * @param err an error code of the cause.
+         */
+        virtual void onInputSurfaceDeclined(status_t err) = 0;
+        /**
+         * Noitfy MediaCodec that the requested input EOS is sent to the input
+         * surface.
+         *
+         * @param err an error code returned from the surface. If there is no
+         *            input surface, the value is INVALID_OPERATION.
+         */
+        virtual void onSignaledInputEOS(status_t err) = 0;
+        /**
+         * Notify MediaCodec that output frames are rendered with information on
+         * those frames.
+         *
+         * @param done  a list of rendered frames.
+         */
+        virtual void onOutputFramesRendered(const std::list<RenderedFrameInfo> &done) = 0;
+        /**
+         * Notify MediaCodec that output buffers are changed.
+         */
+        virtual void onOutputBuffersChanged() = 0;
+    };
+
+    /**
+     * This interface defines events firing from BufferChannelBase back to MediaCodec.
+     * All methods must not block.
+     */
+    class BufferCallback {
+    public:
+        virtual ~BufferCallback() = default;
+
+        /**
+         * Notify MediaCodec that an input buffer is available with given index.
+         * When BufferChannelBase::getInputBufferArray() is not called,
+         * BufferChannelBase may report different buffers with the same index if
+         * MediaCodec already queued/discarded the buffer. After calling
+         * BufferChannelBase::getInputBufferArray(), the buffer and index match the
+         * returned array.
+         */
+        virtual void onInputBufferAvailable(
+                size_t index, const sp<MediaCodecBuffer> &buffer) = 0;
+        /**
+         * Notify MediaCodec that an output buffer is available with given index.
+         * When BufferChannelBase::getOutputBufferArray() is not called,
+         * BufferChannelBase may report different buffers with the same index if
+         * MediaCodec already queued/discarded the buffer. After calling
+         * BufferChannelBase::getOutputBufferArray(), the buffer and index match the
+         * returned array.
+         */
+        virtual void onOutputBufferAvailable(
+                size_t index, const sp<MediaCodecBuffer> &buffer) = 0;
+    };
+    enum {
+        kMaxCodecBufferSize = 8192 * 4096 * 4, // 8K RGBA
+    };
+
+    inline void setCallback(std::unique_ptr<CodecCallback> &&callback) {
+        mCallback = std::move(callback);
+    }
+    virtual std::shared_ptr<BufferChannelBase> getBufferChannel() = 0;
+
+    virtual void initiateAllocateComponent(const sp<AMessage> &msg) = 0;
+    virtual void initiateConfigureComponent(const sp<AMessage> &msg) = 0;
+    virtual void initiateCreateInputSurface() = 0;
+    virtual void initiateSetInputSurface(
+            const sp<PersistentSurface> &surface) = 0;
+    virtual void initiateStart() = 0;
+    virtual void initiateShutdown(bool keepComponentAllocated = false) = 0;
+
+    // require an explicit message handler
+    virtual void onMessageReceived(const sp<AMessage> &msg) = 0;
+
+    virtual status_t queryCapabilities(
+            const AString& /*name*/, const AString& /*mime*/, bool /*isEncoder*/,
+            sp<MediaCodecInfo::Capabilities>* /*caps*/ /* nonnull */) { return INVALID_OPERATION; }
+
+    virtual status_t setSurface(const sp<Surface>& /*surface*/) { return INVALID_OPERATION; }
+
+    virtual void signalFlush() = 0;
+    virtual void signalResume() = 0;
+
+    virtual void signalRequestIDRFrame() = 0;
+    virtual void signalSetParameters(const sp<AMessage> &msg) = 0;
+    virtual void signalEndOfInputStream() = 0;
+
+    /*
+     * Codec-related defines
+     */
+
+protected:
+    CodecBase() = default;
+    virtual ~CodecBase() = default;
+
+    std::unique_ptr<CodecCallback> mCallback;
+
+private:
+    DISALLOW_EVIL_CONSTRUCTORS(CodecBase);
+};
+
+/**
+ * A channel between MediaCodec and CodecBase object which manages buffer
+ * passing. Only MediaCodec is expected to call these methods, and
+ * underlying CodecBase implementation should define its own interface
+ * separately for itself.
+ *
+ * Concurrency assumptions:
+ *
+ * 1) Clients may access the object at multiple threads concurrently.
+ * 2) All methods do not call underlying CodecBase object while holding a lock.
+ * 3) Code inside critical section executes within 1ms.
+ */
+class BufferChannelBase {
+public:
+    virtual ~BufferChannelBase() = default;
+
+    inline void setCallback(std::unique_ptr<CodecBase::BufferCallback> &&callback) {
+        mCallback = std::move(callback);
+    }
+
+    inline void setCrypto(const sp<ICrypto> &crypto) {
+        mCrypto = crypto;
+    }
+
+    inline void setDescrambler(const sp<IDescrambler> &descrambler) {
+        mDescrambler = descrambler;
+    }
+
+    /**
+     * Queue an input buffer into the buffer channel.
+     *
+     * @return    OK if successful;
+     *            -ENOENT if the buffer is not known (TODO: this should be
+     *            handled gracefully in the future, here and below).
+     */
+    virtual status_t queueInputBuffer(const sp<MediaCodecBuffer> &buffer) = 0;
+    /**
+     * Queue a secure input buffer into the buffer channel.
+     *
+     * @return    OK if successful;
+     *            -ENOENT if the buffer is not known;
+     *            -ENOSYS if mCrypto is not set so that decryption is not
+     *            possible;
+     *            other errors if decryption failed.
+     */
+    virtual status_t queueSecureInputBuffer(
+            const sp<MediaCodecBuffer> &buffer,
+            bool secure,
+            const uint8_t *key,
+            const uint8_t *iv,
+            CryptoPlugin::Mode mode,
+            CryptoPlugin::Pattern pattern,
+            const CryptoPlugin::SubSample *subSamples,
+            size_t numSubSamples,
+            AString *errorDetailMsg) = 0;
+    /**
+     * Request buffer rendering at specified time.
+     *
+     * @param     timestampNs   nanosecond timestamp for rendering time.
+     * @return    OK if successful;
+     *            -ENOENT if the buffer is not known.
+     */
+    virtual status_t renderOutputBuffer(
+            const sp<MediaCodecBuffer> &buffer, int64_t timestampNs) = 0;
+    /**
+     * Discard a buffer to the underlying CodecBase object.
+     *
+     * TODO: remove once this operation can be handled by just clearing the
+     * reference.
+     *
+     * @return    OK if successful;
+     *            -ENOENT if the buffer is not known.
+     */
+    virtual status_t discardBuffer(const sp<MediaCodecBuffer> &buffer) = 0;
+    /**
+     * Clear and fill array with input buffers.
+     */
+    virtual void getInputBufferArray(Vector<sp<MediaCodecBuffer>> *array) = 0;
+    /**
+     * Clear and fill array with output buffers.
+     */
+    virtual void getOutputBufferArray(Vector<sp<MediaCodecBuffer>> *array) = 0;
+
+protected:
+    std::unique_ptr<CodecBase::BufferCallback> mCallback;
+    sp<ICrypto> mCrypto;
+    sp<IDescrambler> mDescrambler;
+};
+
+}  // namespace android
+
+#endif  // CODEC_BASE_H_
+
diff --git a/include/media/stagefright/ColorConverter.h b/media/libstagefright/include/ColorConverter.h
similarity index 100%
rename from include/media/stagefright/ColorConverter.h
rename to media/libstagefright/include/ColorConverter.h
diff --git a/media/libstagefright/include/DRMExtractor.h b/media/libstagefright/include/DRMExtractor.h
deleted file mode 100644
index 3dc7df8..0000000
--- a/media/libstagefright/include/DRMExtractor.h
+++ /dev/null
@@ -1,64 +0,0 @@
-/*
- * Copyright (C) 2010 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef DRM_EXTRACTOR_H_
-
-#define DRM_EXTRACTOR_H_
-
-#include <media/IMediaSource.h>
-#include <media/stagefright/MediaExtractor.h>
-#include <drm/DrmManagerClient.h>
-
-namespace android {
-
-struct AMessage;
-class DataSource;
-class SampleTable;
-class String8;
-class DecryptHandle;
-
-class DRMExtractor : public MediaExtractor {
-public:
-    DRMExtractor(const sp<DataSource> &source, const char *mime);
-
-    virtual size_t countTracks();
-    virtual sp<IMediaSource> getTrack(size_t index);
-    virtual sp<MetaData> getTrackMetaData(size_t index, uint32_t flags);
-    virtual sp<MetaData> getMetaData();
-    virtual const char * name() { return "DRMExtractor"; }
-
-protected:
-    virtual ~DRMExtractor();
-
-private:
-    sp<DataSource> mDataSource;
-
-    sp<IMediaExtractor> mOriginalExtractor;
-    sp<DecryptHandle> mDecryptHandle;
-    DrmManagerClient* mDrmManagerClient;
-
-    DRMExtractor(const DRMExtractor &);
-    DRMExtractor &operator=(const DRMExtractor &);
-};
-
-bool SniffDRM(
-        const sp<DataSource> &source, String8 *mimeType, float *confidence,
-            sp<AMessage> *);
-
-}  // namespace android
-
-#endif  // DRM_EXTRACTOR_H_
-
diff --git a/media/libstagefright/include/DataConverter.h b/media/libstagefright/include/DataConverter.h
index 8d67921..60ebad1 100644
--- a/media/libstagefright/include/DataConverter.h
+++ b/media/libstagefright/include/DataConverter.h
@@ -24,18 +24,18 @@
 
 namespace android {
 
-struct ABuffer;
+class MediaCodecBuffer;
 
 // DataConverter base class, defaults to memcpy
 struct DataConverter : public RefBase {
     virtual size_t sourceSize(size_t targetSize); // will clamp to SIZE_MAX
     virtual size_t targetSize(size_t sourceSize); // will clamp to SIZE_MAX
 
-    status_t convert(const sp<ABuffer> &source, sp<ABuffer> &target);
+    status_t convert(const sp<MediaCodecBuffer> &source, sp<MediaCodecBuffer> &target);
     virtual ~DataConverter();
 
 protected:
-    virtual status_t safeConvert(const sp<ABuffer> &source, sp<ABuffer> &target);
+    virtual status_t safeConvert(const sp<MediaCodecBuffer> &source, sp<MediaCodecBuffer> &target);
 };
 
 // SampleConverterBase uses a ratio to calculate the source and target sizes
@@ -45,7 +45,7 @@
     virtual size_t targetSize(size_t sourceSize);
 
 protected:
-    virtual status_t safeConvert(const sp<ABuffer> &source, sp<ABuffer> &target) = 0;
+    virtual status_t safeConvert(const sp<MediaCodecBuffer> &source, sp<MediaCodecBuffer> &target) = 0;
 
     // sourceSize = sourceSampleSize / targetSampleSize * targetSize
     SampleConverterBase(uint32_t sourceSampleSize, uint32_t targetSampleSize)
@@ -61,7 +61,7 @@
     static AudioConverter *Create(AudioEncoding source, AudioEncoding target);
 
 protected:
-    virtual status_t safeConvert(const sp<ABuffer> &src, sp<ABuffer> &tgt);
+    virtual status_t safeConvert(const sp<MediaCodecBuffer> &source, sp<MediaCodecBuffer> &target);
 
 private:
     AudioConverter(
diff --git a/media/libstagefright/include/DataSource.h b/media/libstagefright/include/DataSource.h
new file mode 100644
index 0000000..e7135a2
--- /dev/null
+++ b/media/libstagefright/include/DataSource.h
@@ -0,0 +1,175 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef DATA_SOURCE_H_
+
+#define DATA_SOURCE_H_
+
+#include <sys/types.h>
+#include <media/stagefright/foundation/ADebug.h>
+#include <media/stagefright/MediaErrors.h>
+#include <utils/Errors.h>
+#include <utils/KeyedVector.h>
+#include <utils/List.h>
+#include <utils/RefBase.h>
+#include <utils/threads.h>
+#include <drm/DrmManagerClient.h>
+
+namespace android {
+
+struct AMessage;
+struct AString;
+class  IDataSource;
+struct IMediaHTTPService;
+class String8;
+struct HTTPBase;
+
+class DataSource : public RefBase {
+public:
+    enum Flags {
+        kWantsPrefetching      = 1,
+        kStreamedFromLocalHost = 2,
+        kIsCachingDataSource   = 4,
+        kIsHTTPBasedSource     = 8,
+        kIsLocalFileSource     = 16,
+    };
+
+    static sp<DataSource> CreateFromURI(
+            const sp<IMediaHTTPService> &httpService,
+            const char *uri,
+            const KeyedVector<String8, String8> *headers = NULL,
+            String8 *contentType = NULL,
+            HTTPBase *httpSource = NULL);
+
+    static sp<DataSource> CreateMediaHTTP(const sp<IMediaHTTPService> &httpService);
+    static sp<DataSource> CreateFromIDataSource(const sp<IDataSource> &source);
+
+    DataSource() {}
+
+    virtual status_t initCheck() const = 0;
+
+    // Returns the number of bytes read, or -1 on failure. It's not an error if
+    // this returns zero; it just means the given offset is equal to, or
+    // beyond, the end of the source.
+    virtual ssize_t readAt(off64_t offset, void *data, size_t size) = 0;
+
+    // Convenience methods:
+    bool getUInt16(off64_t offset, uint16_t *x);
+    bool getUInt24(off64_t offset, uint32_t *x); // 3 byte int, returned as a 32-bit int
+    bool getUInt32(off64_t offset, uint32_t *x);
+    bool getUInt64(off64_t offset, uint64_t *x);
+
+    // Reads in "count" entries of type T into vector *x.
+    // Returns true if "count" entries can be read.
+    // If fewer than "count" entries can be read, return false. In this case,
+    // the output vector *x will still have those entries that were read. Call
+    // x->size() to obtain the number of entries read.
+    // The optional parameter chunkSize specifies how many entries should be
+    // read from the data source at one time into a temporary buffer. Increasing
+    // chunkSize can improve the performance at the cost of extra memory usage.
+    // The default value for chunkSize is set to read at least 4k bytes at a
+    // time, depending on sizeof(T).
+    template <typename T>
+    bool getVector(off64_t offset, Vector<T>* x, size_t count,
+                   size_t chunkSize = (4095 / sizeof(T)) + 1);
+
+    // May return ERROR_UNSUPPORTED.
+    virtual status_t getSize(off64_t *size);
+
+    virtual uint32_t flags() {
+        return 0;
+    }
+
+    virtual String8 toString() {
+        return String8("<unspecified>");
+    }
+
+    virtual status_t reconnectAtOffset(off64_t /*offset*/) {
+        return ERROR_UNSUPPORTED;
+    }
+
+    ////////////////////////////////////////////////////////////////////////////
+
+    // for DRM
+    virtual sp<DecryptHandle> DrmInitialization(const char * /*mime*/ = NULL) {
+        return NULL;
+    }
+    virtual void getDrmInfo(sp<DecryptHandle> &/*handle*/, DrmManagerClient ** /*client*/) {};
+
+    virtual String8 getUri() {
+        return String8();
+    }
+
+    virtual String8 getMIMEType() const;
+
+    virtual void close() {};
+
+protected:
+    virtual ~DataSource() {}
+
+private:
+    DataSource(const DataSource &);
+    DataSource &operator=(const DataSource &);
+};
+
+template <typename T>
+bool DataSource::getVector(off64_t offset, Vector<T>* x, size_t count,
+                           size_t chunkSize)
+{
+    x->clear();
+    if (chunkSize == 0) {
+        return false;
+    }
+    if (count == 0) {
+        return true;
+    }
+
+    T tmp[chunkSize];
+    ssize_t numBytesRead;
+    size_t numBytesPerChunk = chunkSize * sizeof(T);
+    size_t i;
+
+    for (i = 0; i + chunkSize < count; i += chunkSize) {
+        // This loops is executed when more than chunkSize records need to be
+        // read.
+        numBytesRead = this->readAt(offset, (void*)&tmp, numBytesPerChunk);
+        if (numBytesRead == -1) { // If readAt() returns -1, there is an error.
+            return false;
+        }
+        if (numBytesRead < numBytesPerChunk) {
+            // This case is triggered when the stream ends before the whole
+            // chunk is read.
+            x->appendArray(tmp, (size_t)numBytesRead / sizeof(T));
+            return false;
+        }
+        x->appendArray(tmp, chunkSize);
+        offset += numBytesPerChunk;
+    }
+
+    // There are (count - i) more records to read.
+    // Right now, (count - i) <= chunkSize.
+    // We do the same thing as above, but with chunkSize replaced by count - i.
+    numBytesRead = this->readAt(offset, (void*)&tmp, (count - i) * sizeof(T));
+    if (numBytesRead == -1) {
+        return false;
+    }
+    x->appendArray(tmp, (size_t)numBytesRead / sizeof(T));
+    return x->size() == count;
+}
+
+}  // namespace android
+
+#endif  // DATA_SOURCE_H_
diff --git a/include/media/stagefright/DataURISource.h b/media/libstagefright/include/DataURISource.h
similarity index 100%
rename from include/media/stagefright/DataURISource.h
rename to media/libstagefright/include/DataURISource.h
diff --git a/media/libstagefright/include/FileSource.h b/media/libstagefright/include/FileSource.h
new file mode 100644
index 0000000..9f3bb5e
--- /dev/null
+++ b/media/libstagefright/include/FileSource.h
@@ -0,0 +1,80 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef FILE_SOURCE_H_
+
+#define FILE_SOURCE_H_
+
+#include <stdio.h>
+
+#include <media/stagefright/DataSource.h>
+#include <media/stagefright/MediaErrors.h>
+#include <utils/threads.h>
+#include <drm/DrmManagerClient.h>
+
+namespace android {
+
+class FileSource : public DataSource {
+public:
+    FileSource(const char *filename);
+    // FileSource takes ownership and will close the fd
+    FileSource(int fd, int64_t offset, int64_t length);
+
+    virtual status_t initCheck() const;
+
+    virtual ssize_t readAt(off64_t offset, void *data, size_t size);
+
+    virtual status_t getSize(off64_t *size);
+
+    virtual uint32_t flags() {
+        return kIsLocalFileSource;
+    }
+
+    virtual sp<DecryptHandle> DrmInitialization(const char *mime);
+
+    virtual void getDrmInfo(sp<DecryptHandle> &handle, DrmManagerClient **client);
+
+    virtual String8 toString() {
+        return mName;
+    }
+
+protected:
+    virtual ~FileSource();
+
+private:
+    int mFd;
+    int64_t mOffset;
+    int64_t mLength;
+    Mutex mLock;
+    String8 mName;
+
+    /*for DRM*/
+    sp<DecryptHandle> mDecryptHandle;
+    DrmManagerClient *mDrmManagerClient;
+    int64_t mDrmBufOffset;
+    ssize_t mDrmBufSize;
+    unsigned char *mDrmBuf;
+
+    ssize_t readAtDRM(off64_t offset, void *data, size_t size);
+
+    FileSource(const FileSource &);
+    FileSource &operator=(const FileSource &);
+};
+
+}  // namespace android
+
+#endif  // FILE_SOURCE_H_
+
diff --git a/media/libstagefright/include/FrameRenderTracker.h b/media/libstagefright/include/FrameRenderTracker.h
new file mode 100644
index 0000000..6cbf85d
--- /dev/null
+++ b/media/libstagefright/include/FrameRenderTracker.h
@@ -0,0 +1,146 @@
+/*
+ * Copyright 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef FRAME_RENDER_TRACKER_H_
+
+#define FRAME_RENDER_TRACKER_H_
+
+#include <utils/RefBase.h>
+#include <utils/Timers.h>
+#include <system/window.h>
+
+#include <media/stagefright/foundation/ADebug.h>
+#include <media/stagefright/foundation/AString.h>
+
+#include <list>
+
+namespace android {
+
+class Fence;
+class GraphicBuffer;
+
+// Tracks the render information about a frame. Frames go through several states while
+// the render information is tracked:
+//
+// 1. queued frame: mMediaTime and mGraphicBuffer are set for the frame. mFence is the
+// queue fence (read fence). mIndex is negative, and mRenderTimeNs is invalid.
+// Key characteristics: mFence is not NULL and mIndex is negative.
+//
+// 2. dequeued frame: mFence is updated with the dequeue fence (write fence). mIndex is set.
+// Key characteristics: mFence is not NULL and mIndex is non-negative. mRenderTime is still
+// invalid.
+//
+// 3. rendered frame or frame: mFence is cleared, mRenderTimeNs is set.
+// Key characteristics: mFence is NULL.
+//
+struct RenderedFrameInfo {
+    // set by client during onFrameQueued or onFrameRendered
+    int64_t getMediaTimeUs() const  { return mMediaTimeUs; }
+
+    // -1 if frame is not yet rendered
+    nsecs_t getRenderTimeNs() const { return mRenderTimeNs; }
+
+    // set by client during updateRenderInfoForDequeuedBuffer; -1 otherwise
+    ssize_t getIndex() const        { return mIndex; }
+
+    // creates information for a queued frame
+    RenderedFrameInfo(int64_t mediaTimeUs, const sp<GraphicBuffer> &graphicBuffer,
+            const sp<Fence> &fence)
+        : mMediaTimeUs(mediaTimeUs),
+          mRenderTimeNs(-1),
+          mIndex(-1),
+          mGraphicBuffer(graphicBuffer),
+          mFence(fence) {
+    }
+
+    // creates information for a frame rendered on a tunneled surface
+    RenderedFrameInfo(int64_t mediaTimeUs, nsecs_t renderTimeNs)
+        : mMediaTimeUs(mediaTimeUs),
+          mRenderTimeNs(renderTimeNs),
+          mIndex(-1),
+          mGraphicBuffer(NULL),
+          mFence(NULL) {
+    }
+
+private:
+    int64_t mMediaTimeUs;
+    nsecs_t mRenderTimeNs;
+    ssize_t mIndex;         // to be used by client
+    sp<GraphicBuffer> mGraphicBuffer;
+    sp<Fence> mFence;
+
+    friend struct FrameRenderTracker;
+};
+
+struct FrameRenderTracker {
+    typedef RenderedFrameInfo Info;
+
+    FrameRenderTracker();
+
+    void setComponentName(const AString &componentName);
+
+    // clears all tracked frames, and resets last render time
+    void clear(nsecs_t lastRenderTimeNs);
+
+    // called when |graphicBuffer| corresponding to |mediaTimeUs| is
+    // queued to the output surface using |fence|.
+    void onFrameQueued(
+            int64_t mediaTimeUs, const sp<GraphicBuffer> &graphicBuffer, const sp<Fence> &fence);
+
+    // Called when we have dequeued a buffer |buf| from the native window to track render info.
+    // |fenceFd| is the dequeue fence, and |index| is a positive buffer ID to be usable by the
+    // client to track this render info among the dequeued buffers.
+    // Returns pointer to the tracked info, or NULL if buffer is not tracked or if |index|
+    // is negative.
+    Info *updateInfoForDequeuedBuffer(ANativeWindowBuffer *buf, int fenceFd, int index);
+
+    // called when tunneled codec signals frame rendered event
+    // returns BAD_VALUE if systemNano is not monotonic. Otherwise, returns OK.
+    status_t onFrameRendered(int64_t mediaTimeUs, nsecs_t systemNano);
+
+    // Checks to see if any frames have rendered up until |until|. If |until| is NULL or not a
+    // tracked info, this method searches the entire render queue.
+    // Returns list of rendered frames up-until the frame pointed to by |until| or the first
+    // unrendered frame, as well as any dropped frames (those with invalid fence) up-until |until|.
+    // These frames are removed from the render queue.
+    // If |dropIncomplete| is true, unrendered frames up-until |until| will also be dropped from the
+    // queue, allowing all rendered framed up till then to be notified of.
+    // (This will effectively clear the render queue up-until (and including) |until|.)
+    std::list<Info> checkFencesAndGetRenderedFrames(const Info *until, bool dropIncomplete);
+
+    // Stop tracking a queued frame (e.g. if the frame has been discarded). If |info| is NULL or is
+    // not tracked, this method is a no-op. If |index| is specified, all indices larger that |index|
+    // are decremented. This is useful if the untracked frame is deleted from the frame vector.
+    void untrackFrame(const Info *info, ssize_t index = SSIZE_MAX);
+
+    void dumpRenderQueue() const;
+
+    virtual ~FrameRenderTracker();
+
+private:
+
+    // Render information for buffers. Regular surface buffers are queued in the order of
+    // rendering. Tunneled buffers are queued in the order of receipt.
+    std::list<Info> mRenderQueue;
+    nsecs_t mLastRenderTimeNs;
+    AString mComponentName;
+
+    DISALLOW_EVIL_CONSTRUCTORS(FrameRenderTracker);
+};
+
+}  // namespace android
+
+#endif  // FRAME_RENDER_TRACKER_H_
diff --git a/include/media/stagefright/JPEGSource.h b/media/libstagefright/include/JPEGSource.h
similarity index 100%
rename from include/media/stagefright/JPEGSource.h
rename to media/libstagefright/include/JPEGSource.h
diff --git a/media/libstagefright/include/MPEG2TSExtractor.h b/media/libstagefright/include/MPEG2TSExtractor.h
index 93e9a4b..2a75298f 100644
--- a/media/libstagefright/include/MPEG2TSExtractor.h
+++ b/media/libstagefright/include/MPEG2TSExtractor.h
@@ -45,6 +45,8 @@
 
     virtual sp<MetaData> getMetaData();
 
+    virtual status_t setMediaCas(const sp<ICas> &cas) override;
+
     virtual uint32_t flags() const;
     virtual const char * name() { return "MPEG2TSExtractor"; }
 
@@ -70,7 +72,10 @@
 
     off64_t mOffset;
 
+    static bool isScrambledFormat(const sp<MetaData> &format);
+
     void init();
+    void addSource(const sp<AnotherPacketSource> &impl);
     // Try to feed more data from source to parser.
     // |isInit| means this function is called inside init(). This is a signal to
     // save SyncEvent so that init() can add SyncPoint after it updates |mSourceImpls|.
@@ -89,6 +94,8 @@
     // Add a SynPoint derived from |event|.
     void addSyncPoint_l(const ATSParser::SyncEvent &event);
 
+    status_t  estimateDurationsFromTimesUsAtEnd();
+
     DISALLOW_EVIL_CONSTRUCTORS(MPEG2TSExtractor);
 };
 
diff --git a/include/media/stagefright/MPEG2TSWriter.h b/media/libstagefright/include/MPEG2TSWriter.h
similarity index 100%
rename from include/media/stagefright/MPEG2TSWriter.h
rename to media/libstagefright/include/MPEG2TSWriter.h
diff --git a/media/libstagefright/include/MPEG4Extractor.h b/media/libstagefright/include/MPEG4Extractor.h
index 89ad137..f847119 100644
--- a/media/libstagefright/include/MPEG4Extractor.h
+++ b/media/libstagefright/include/MPEG4Extractor.h
@@ -66,6 +66,8 @@
 protected:
     virtual ~MPEG4Extractor();
 
+    virtual void populateMetrics();
+
 private:
 
     struct PsshInfo {
@@ -140,6 +142,9 @@
 
     Track *findTrackByMimePrefix(const char *mimePrefix);
 
+    status_t parseAC3SampleEntry(off64_t offset);
+    status_t parseAC3SpecificBox(off64_t offset, uint16_t sampleRate);
+
     MPEG4Extractor(const MPEG4Extractor &);
     MPEG4Extractor &operator=(const MPEG4Extractor &);
 };
diff --git a/media/libstagefright/include/MPEG4Writer.h b/media/libstagefright/include/MPEG4Writer.h
new file mode 100644
index 0000000..39e7d01
--- /dev/null
+++ b/media/libstagefright/include/MPEG4Writer.h
@@ -0,0 +1,246 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef MPEG4_WRITER_H_
+
+#define MPEG4_WRITER_H_
+
+#include <stdio.h>
+
+#include <media/IMediaSource.h>
+#include <media/stagefright/MediaWriter.h>
+#include <utils/List.h>
+#include <utils/threads.h>
+#include <media/stagefright/foundation/AHandlerReflector.h>
+#include <media/stagefright/foundation/ALooper.h>
+
+namespace android {
+
+class AMessage;
+class MediaBuffer;
+class MetaData;
+
+class MPEG4Writer : public MediaWriter {
+public:
+    MPEG4Writer(int fd);
+
+    // Limitations
+    // No more than one video and/or one audio source can be added, but
+    // multiple metadata sources can be added.
+    virtual status_t addSource(const sp<IMediaSource> &source);
+
+    // Returns INVALID_OPERATION if there is no source or track.
+    virtual status_t start(MetaData *param = NULL);
+    virtual status_t stop() { return reset(); }
+    virtual status_t pause();
+    virtual bool reachedEOS();
+    virtual status_t dump(int fd, const Vector<String16>& args);
+
+    void beginBox(const char *fourcc);
+    void beginBox(uint32_t id);
+    void writeInt8(int8_t x);
+    void writeInt16(int16_t x);
+    void writeInt32(int32_t x);
+    void writeInt64(int64_t x);
+    void writeCString(const char *s);
+    void writeFourcc(const char *fourcc);
+    void write(const void *data, size_t size);
+    inline size_t write(const void *ptr, size_t size, size_t nmemb);
+    void endBox();
+    uint32_t interleaveDuration() const { return mInterleaveDurationUs; }
+    status_t setInterleaveDuration(uint32_t duration);
+    int32_t getTimeScale() const { return mTimeScale; }
+
+    status_t setGeoData(int latitudex10000, int longitudex10000);
+    status_t setCaptureRate(float captureFps);
+    status_t setTemporalLayerCount(uint32_t layerCount);
+    void notifyApproachingLimit();
+    virtual void setStartTimeOffsetMs(int ms) { mStartTimeOffsetMs = ms; }
+    virtual int32_t getStartTimeOffsetMs() const { return mStartTimeOffsetMs; }
+    virtual status_t setNextFd(int fd);
+
+protected:
+    virtual ~MPEG4Writer();
+
+private:
+    class Track;
+    friend struct AHandlerReflector<MPEG4Writer>;
+
+    enum {
+        kWhatSwitch                          = 'swch',
+    };
+
+    int  mFd;
+    int mNextFd;
+    sp<MetaData> mStartMeta;
+    status_t mInitCheck;
+    bool mIsRealTimeRecording;
+    bool mUse4ByteNalLength;
+    bool mUse32BitOffset;
+    bool mIsFileSizeLimitExplicitlyRequested;
+    bool mPaused;
+    bool mStarted;  // Writer thread + track threads started successfully
+    bool mWriterThreadStarted;  // Only writer thread started successfully
+    bool mSendNotify;
+    off64_t mOffset;
+    off_t mMdatOffset;
+    uint8_t *mMoovBoxBuffer;
+    off64_t mMoovBoxBufferOffset;
+    bool  mWriteMoovBoxToMemory;
+    off64_t mFreeBoxOffset;
+    bool mStreamableFile;
+    off64_t mEstimatedMoovBoxSize;
+    off64_t mMoovExtraSize;
+    uint32_t mInterleaveDurationUs;
+    int32_t mTimeScale;
+    int64_t mStartTimestampUs;
+    int mLatitudex10000;
+    int mLongitudex10000;
+    bool mAreGeoTagsAvailable;
+    int32_t mStartTimeOffsetMs;
+    bool mSwitchPending;
+
+    sp<ALooper> mLooper;
+    sp<AHandlerReflector<MPEG4Writer> > mReflector;
+
+    Mutex mLock;
+
+    List<Track *> mTracks;
+
+    List<off64_t> mBoxes;
+
+    sp<AMessage> mMetaKeys;
+
+    void setStartTimestampUs(int64_t timeUs);
+    int64_t getStartTimestampUs();  // Not const
+    status_t startTracks(MetaData *params);
+    size_t numTracks();
+    int64_t estimateMoovBoxSize(int32_t bitRate);
+
+    struct Chunk {
+        Track               *mTrack;        // Owner
+        int64_t             mTimeStampUs;   // Timestamp of the 1st sample
+        List<MediaBuffer *> mSamples;       // Sample data
+
+        // Convenient constructor
+        Chunk(): mTrack(NULL), mTimeStampUs(0) {}
+
+        Chunk(Track *track, int64_t timeUs, List<MediaBuffer *> samples)
+            : mTrack(track), mTimeStampUs(timeUs), mSamples(samples) {
+        }
+
+    };
+    struct ChunkInfo {
+        Track               *mTrack;        // Owner
+        List<Chunk>         mChunks;        // Remaining chunks to be written
+
+        // Previous chunk timestamp that has been written
+        int64_t mPrevChunkTimestampUs;
+
+        // Max time interval between neighboring chunks
+        int64_t mMaxInterChunkDurUs;
+
+    };
+
+    bool            mIsFirstChunk;
+    volatile bool   mDone;                  // Writer thread is done?
+    pthread_t       mThread;                // Thread id for the writer
+    List<ChunkInfo> mChunkInfos;            // Chunk infos
+    Condition       mChunkReadyCondition;   // Signal that chunks are available
+
+    // Writer thread handling
+    status_t startWriterThread();
+    void stopWriterThread();
+    static void *ThreadWrapper(void *me);
+    void threadFunc();
+
+    // Buffer a single chunk to be written out later.
+    void bufferChunk(const Chunk& chunk);
+
+    // Write all buffered chunks from all tracks
+    void writeAllChunks();
+
+    // Retrieve the proper chunk to write if there is one
+    // Return true if a chunk is found; otherwise, return false.
+    bool findChunkToWrite(Chunk *chunk);
+
+    // Actually write the given chunk to the file.
+    void writeChunkToFile(Chunk* chunk);
+
+    // Adjust other track media clock (presumably wall clock)
+    // based on audio track media clock with the drift time.
+    int64_t mDriftTimeUs;
+    void setDriftTimeUs(int64_t driftTimeUs);
+    int64_t getDriftTimeUs();
+
+    // Return whether the nal length is 4 bytes or 2 bytes
+    // Only makes sense for H.264/AVC
+    bool useNalLengthFour();
+
+    // Return whether the writer is used for real time recording.
+    // In real time recording mode, new samples will be allowed to buffered into
+    // chunks in higher priority thread, even though the file writer has not
+    // drained the chunks yet.
+    // By default, real time recording is on.
+    bool isRealTimeRecording() const;
+
+    void lock();
+    void unlock();
+
+    void initInternal(int fd);
+
+    // Acquire lock before calling these methods
+    off64_t addSample_l(MediaBuffer *buffer);
+    off64_t addLengthPrefixedSample_l(MediaBuffer *buffer);
+    off64_t addMultipleLengthPrefixedSamples_l(MediaBuffer *buffer);
+
+    bool exceedsFileSizeLimit();
+    bool use32BitFileOffset() const;
+    bool exceedsFileDurationLimit();
+    bool approachingFileSizeLimit();
+    bool isFileStreamable() const;
+    void trackProgressStatus(size_t trackId, int64_t timeUs, status_t err = OK);
+    void writeCompositionMatrix(int32_t degrees);
+    void writeMvhdBox(int64_t durationUs);
+    void writeMoovBox(int64_t durationUs);
+    void writeFtypBox(MetaData *param);
+    void writeUdtaBox();
+    void writeGeoDataBox();
+    void writeLatitude(int degreex10000);
+    void writeLongitude(int degreex10000);
+    void finishCurrentSession();
+
+    void addDeviceMeta();
+    void writeHdlr();
+    void writeKeys();
+    void writeIlst();
+    void writeMetaBox();
+    void sendSessionSummary();
+    void release();
+    status_t switchFd();
+    status_t reset(bool stopSource = true);
+
+    static uint32_t getMpeg4Time();
+
+    void onMessageReceived(const sp<AMessage> &msg);
+
+    MPEG4Writer(const MPEG4Writer &);
+    MPEG4Writer &operator=(const MPEG4Writer &);
+};
+
+}  // namespace android
+
+#endif  // MPEG4_WRITER_H_
diff --git a/include/media/stagefright/MediaAdapter.h b/media/libstagefright/include/MediaAdapter.h
similarity index 100%
rename from include/media/stagefright/MediaAdapter.h
rename to media/libstagefright/include/MediaAdapter.h
diff --git a/include/media/stagefright/MediaBuffer.h b/media/libstagefright/include/MediaBuffer.h
similarity index 100%
rename from include/media/stagefright/MediaBuffer.h
rename to media/libstagefright/include/MediaBuffer.h
diff --git a/include/media/stagefright/MediaBufferGroup.h b/media/libstagefright/include/MediaBufferGroup.h
similarity index 100%
rename from include/media/stagefright/MediaBufferGroup.h
rename to media/libstagefright/include/MediaBufferGroup.h
diff --git a/include/media/stagefright/MediaClock.h b/media/libstagefright/include/MediaClock.h
similarity index 100%
rename from include/media/stagefright/MediaClock.h
rename to media/libstagefright/include/MediaClock.h
diff --git a/media/libstagefright/include/MediaCodec.h b/media/libstagefright/include/MediaCodec.h
new file mode 100644
index 0000000..30454dc
--- /dev/null
+++ b/media/libstagefright/include/MediaCodec.h
@@ -0,0 +1,446 @@
+/*
+ * Copyright 2012, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef MEDIA_CODEC_H_
+
+#define MEDIA_CODEC_H_
+
+#include <memory>
+#include <vector>
+
+#include <gui/IGraphicBufferProducer.h>
+#include <media/hardware/CryptoAPI.h>
+#include <media/MediaCodecInfo.h>
+#include <media/MediaResource.h>
+#include <media/MediaAnalyticsItem.h>
+#include <media/stagefright/foundation/AHandler.h>
+#include <media/stagefright/FrameRenderTracker.h>
+#include <utils/Vector.h>
+
+namespace android {
+
+struct ABuffer;
+struct AMessage;
+struct AReplyToken;
+struct AString;
+class BufferChannelBase;
+struct CodecBase;
+class IBatteryStats;
+struct ICrypto;
+class MediaCodecBuffer;
+class IMemory;
+class IResourceManagerClient;
+class IResourceManagerService;
+struct PersistentSurface;
+class SoftwareRenderer;
+class Surface;
+namespace media {
+class IDescrambler;
+};
+using namespace media;
+
+struct MediaCodec : public AHandler {
+    enum ConfigureFlags {
+        CONFIGURE_FLAG_ENCODE   = 1,
+    };
+
+    enum BufferFlags {
+        BUFFER_FLAG_SYNCFRAME   = 1,
+        BUFFER_FLAG_CODECCONFIG = 2,
+        BUFFER_FLAG_EOS         = 4,
+    };
+
+    enum {
+        CB_INPUT_AVAILABLE = 1,
+        CB_OUTPUT_AVAILABLE = 2,
+        CB_ERROR = 3,
+        CB_OUTPUT_FORMAT_CHANGED = 4,
+        CB_RESOURCE_RECLAIMED = 5,
+    };
+
+    static const pid_t kNoPid = -1;
+    static const uid_t kNoUid = -1;
+
+    static sp<MediaCodec> CreateByType(
+            const sp<ALooper> &looper, const AString &mime, bool encoder, status_t *err = NULL,
+            pid_t pid = kNoPid, uid_t uid = kNoUid);
+
+    static sp<MediaCodec> CreateByComponentName(
+            const sp<ALooper> &looper, const AString &name, status_t *err = NULL,
+            pid_t pid = kNoPid, uid_t uid = kNoUid);
+
+    static sp<PersistentSurface> CreatePersistentInputSurface();
+
+    // utility method to query capabilities
+    static status_t QueryCapabilities(
+            const AString &name, const AString &mime, bool isEncoder,
+            sp<MediaCodecInfo::Capabilities> *caps /* nonnull */);
+
+    status_t configure(
+            const sp<AMessage> &format,
+            const sp<Surface> &nativeWindow,
+            const sp<ICrypto> &crypto,
+            uint32_t flags);
+
+    status_t configure(
+            const sp<AMessage> &format,
+            const sp<Surface> &nativeWindow,
+            const sp<ICrypto> &crypto,
+            const sp<IDescrambler> &descrambler,
+            uint32_t flags);
+
+    status_t releaseCrypto();
+
+    status_t setCallback(const sp<AMessage> &callback);
+
+    status_t setOnFrameRenderedNotification(const sp<AMessage> &notify);
+
+    status_t createInputSurface(sp<IGraphicBufferProducer>* bufferProducer);
+
+    status_t setInputSurface(const sp<PersistentSurface> &surface);
+
+    status_t start();
+
+    // Returns to a state in which the component remains allocated but
+    // unconfigured.
+    status_t stop();
+
+    // Resets the codec to the INITIALIZED state.  Can be called after an error
+    // has occured to make the codec usable.
+    status_t reset();
+
+    // Client MUST call release before releasing final reference to this
+    // object.
+    status_t release();
+
+    status_t flush();
+
+    status_t queueInputBuffer(
+            size_t index,
+            size_t offset,
+            size_t size,
+            int64_t presentationTimeUs,
+            uint32_t flags,
+            AString *errorDetailMsg = NULL);
+
+    status_t queueSecureInputBuffer(
+            size_t index,
+            size_t offset,
+            const CryptoPlugin::SubSample *subSamples,
+            size_t numSubSamples,
+            const uint8_t key[16],
+            const uint8_t iv[16],
+            CryptoPlugin::Mode mode,
+            const CryptoPlugin::Pattern &pattern,
+            int64_t presentationTimeUs,
+            uint32_t flags,
+            AString *errorDetailMsg = NULL);
+
+    status_t dequeueInputBuffer(size_t *index, int64_t timeoutUs = 0ll);
+
+    status_t dequeueOutputBuffer(
+            size_t *index,
+            size_t *offset,
+            size_t *size,
+            int64_t *presentationTimeUs,
+            uint32_t *flags,
+            int64_t timeoutUs = 0ll);
+
+    status_t renderOutputBufferAndRelease(size_t index, int64_t timestampNs);
+    status_t renderOutputBufferAndRelease(size_t index);
+    status_t releaseOutputBuffer(size_t index);
+
+    status_t signalEndOfInputStream();
+
+    status_t getOutputFormat(sp<AMessage> *format) const;
+    status_t getInputFormat(sp<AMessage> *format) const;
+
+    status_t getInputBuffers(Vector<sp<MediaCodecBuffer> > *buffers) const;
+    status_t getOutputBuffers(Vector<sp<MediaCodecBuffer> > *buffers) const;
+
+    status_t getOutputBuffer(size_t index, sp<MediaCodecBuffer> *buffer);
+    status_t getOutputFormat(size_t index, sp<AMessage> *format);
+    status_t getInputBuffer(size_t index, sp<MediaCodecBuffer> *buffer);
+
+    status_t setSurface(const sp<Surface> &nativeWindow);
+
+    status_t requestIDRFrame();
+
+    // Notification will be posted once there "is something to do", i.e.
+    // an input/output buffer has become available, a format change is
+    // pending, an error is pending.
+    void requestActivityNotification(const sp<AMessage> &notify);
+
+    status_t getName(AString *componentName) const;
+
+    status_t getMetrics(Parcel *reply);
+
+    status_t setParameters(const sp<AMessage> &params);
+
+    // Create a MediaCodec notification message from a list of rendered or dropped render infos
+    // by adding rendered frame information to a base notification message. Returns the number
+    // of frames that were rendered.
+    static size_t CreateFramesRenderedMessage(
+            const std::list<FrameRenderTracker::Info> &done, sp<AMessage> &msg);
+
+protected:
+    virtual ~MediaCodec();
+    virtual void onMessageReceived(const sp<AMessage> &msg);
+
+private:
+    // used by ResourceManagerClient
+    status_t reclaim(bool force = false);
+    friend struct ResourceManagerClient;
+
+private:
+    enum State {
+        UNINITIALIZED,
+        INITIALIZING,
+        INITIALIZED,
+        CONFIGURING,
+        CONFIGURED,
+        STARTING,
+        STARTED,
+        FLUSHING,
+        FLUSHED,
+        STOPPING,
+        RELEASING,
+    };
+
+    enum {
+        kPortIndexInput         = 0,
+        kPortIndexOutput        = 1,
+    };
+
+    enum {
+        kWhatInit                           = 'init',
+        kWhatConfigure                      = 'conf',
+        kWhatSetSurface                     = 'sSur',
+        kWhatCreateInputSurface             = 'cisf',
+        kWhatSetInputSurface                = 'sisf',
+        kWhatStart                          = 'strt',
+        kWhatStop                           = 'stop',
+        kWhatRelease                        = 'rele',
+        kWhatDequeueInputBuffer             = 'deqI',
+        kWhatQueueInputBuffer               = 'queI',
+        kWhatDequeueOutputBuffer            = 'deqO',
+        kWhatReleaseOutputBuffer            = 'relO',
+        kWhatSignalEndOfInputStream         = 'eois',
+        kWhatGetBuffers                     = 'getB',
+        kWhatFlush                          = 'flus',
+        kWhatGetOutputFormat                = 'getO',
+        kWhatGetInputFormat                 = 'getI',
+        kWhatDequeueInputTimedOut           = 'dITO',
+        kWhatDequeueOutputTimedOut          = 'dOTO',
+        kWhatCodecNotify                    = 'codc',
+        kWhatRequestIDRFrame                = 'ridr',
+        kWhatRequestActivityNotification    = 'racN',
+        kWhatGetName                        = 'getN',
+        kWhatSetParameters                  = 'setP',
+        kWhatSetCallback                    = 'setC',
+        kWhatSetNotification                = 'setN',
+        kWhatDrmReleaseCrypto               = 'rDrm',
+    };
+
+    enum {
+        kFlagUsesSoftwareRenderer       = 1,
+        kFlagOutputFormatChanged        = 2,
+        kFlagOutputBuffersChanged       = 4,
+        kFlagStickyError                = 8,
+        kFlagDequeueInputPending        = 16,
+        kFlagDequeueOutputPending       = 32,
+        kFlagIsSecure                   = 64,
+        kFlagSawMediaServerDie          = 128,
+        kFlagIsEncoder                  = 256,
+        // 512 skipped
+        kFlagIsAsync                    = 1024,
+        kFlagIsComponentAllocated       = 2048,
+        kFlagPushBlankBuffersOnShutdown = 4096,
+    };
+
+    struct BufferInfo {
+        BufferInfo();
+
+        sp<MediaCodecBuffer> mData;
+        bool mOwnedByClient;
+    };
+
+    struct ResourceManagerServiceProxy : public IBinder::DeathRecipient {
+        ResourceManagerServiceProxy(pid_t pid);
+        ~ResourceManagerServiceProxy();
+
+        void init();
+
+        // implements DeathRecipient
+        virtual void binderDied(const wp<IBinder>& /*who*/);
+
+        void addResource(
+                int64_t clientId,
+                const sp<IResourceManagerClient> &client,
+                const Vector<MediaResource> &resources);
+
+        void removeResource(int64_t clientId);
+
+        bool reclaimResource(const Vector<MediaResource> &resources);
+
+    private:
+        Mutex mLock;
+        sp<IResourceManagerService> mService;
+        pid_t mPid;
+    };
+
+    State mState;
+    uid_t mUid;
+    bool mReleasedByResourceManager;
+    sp<ALooper> mLooper;
+    sp<ALooper> mCodecLooper;
+    sp<CodecBase> mCodec;
+    AString mComponentName;
+    sp<AReplyToken> mReplyID;
+    uint32_t mFlags;
+    status_t mStickyError;
+    sp<Surface> mSurface;
+    SoftwareRenderer *mSoftRenderer;
+
+    MediaAnalyticsItem *mAnalyticsItem;
+
+    sp<AMessage> mOutputFormat;
+    sp<AMessage> mInputFormat;
+    sp<AMessage> mCallback;
+    sp<AMessage> mOnFrameRenderedNotification;
+
+    sp<IResourceManagerClient> mResourceManagerClient;
+    sp<ResourceManagerServiceProxy> mResourceManagerService;
+
+    bool mBatteryStatNotified;
+    bool mIsVideo;
+    int32_t mVideoWidth;
+    int32_t mVideoHeight;
+    int32_t mRotationDegrees;
+
+    // initial create parameters
+    AString mInitName;
+    bool mInitNameIsType;
+    bool mInitIsEncoder;
+
+    // configure parameter
+    sp<AMessage> mConfigureMsg;
+
+    // Used only to synchronize asynchronous getBufferAndFormat
+    // across all the other (synchronous) buffer state change
+    // operations, such as de/queueIn/OutputBuffer, start and
+    // stop/flush/reset/release.
+    Mutex mBufferLock;
+
+    List<size_t> mAvailPortBuffers[2];
+    std::vector<BufferInfo> mPortBuffers[2];
+
+    int32_t mDequeueInputTimeoutGeneration;
+    sp<AReplyToken> mDequeueInputReplyID;
+
+    int32_t mDequeueOutputTimeoutGeneration;
+    sp<AReplyToken> mDequeueOutputReplyID;
+
+    sp<ICrypto> mCrypto;
+
+    sp<IDescrambler> mDescrambler;
+
+    List<sp<ABuffer> > mCSD;
+
+    sp<AMessage> mActivityNotify;
+
+    bool mHaveInputSurface;
+    bool mHavePendingInputBuffers;
+
+    std::shared_ptr<BufferChannelBase> mBufferChannel;
+
+    MediaCodec(const sp<ALooper> &looper, pid_t pid, uid_t uid);
+
+    static sp<CodecBase> GetCodecBase(const AString &name, bool nameIsType = false);
+
+    static status_t PostAndAwaitResponse(
+            const sp<AMessage> &msg, sp<AMessage> *response);
+
+    void PostReplyWithError(const sp<AReplyToken> &replyID, int32_t err);
+
+    status_t init(const AString &name, bool nameIsType, bool encoder);
+
+    void setState(State newState);
+    void returnBuffersToCodec(bool isReclaim = false);
+    void returnBuffersToCodecOnPort(int32_t portIndex, bool isReclaim = false);
+    size_t updateBuffers(int32_t portIndex, const sp<AMessage> &msg);
+    status_t onQueueInputBuffer(const sp<AMessage> &msg);
+    status_t onReleaseOutputBuffer(const sp<AMessage> &msg);
+    ssize_t dequeuePortBuffer(int32_t portIndex);
+
+    status_t getBufferAndFormat(
+            size_t portIndex, size_t index,
+            sp<MediaCodecBuffer> *buffer, sp<AMessage> *format);
+
+    bool handleDequeueInputBuffer(const sp<AReplyToken> &replyID, bool newRequest = false);
+    bool handleDequeueOutputBuffer(const sp<AReplyToken> &replyID, bool newRequest = false);
+    void cancelPendingDequeueOperations();
+
+    void extractCSD(const sp<AMessage> &format);
+    status_t queueCSDInputBuffer(size_t bufferIndex);
+
+    status_t handleSetSurface(const sp<Surface> &surface);
+    status_t connectToSurface(const sp<Surface> &surface);
+    status_t disconnectFromSurface();
+
+    bool hasCryptoOrDescrambler() {
+        return mCrypto != NULL || mDescrambler != NULL;
+    }
+
+    void postActivityNotificationIfPossible();
+
+    void onInputBufferAvailable();
+    void onOutputBufferAvailable();
+    void onError(status_t err, int32_t actionCode, const char *detail = NULL);
+    void onOutputFormatChanged();
+
+    status_t onSetParameters(const sp<AMessage> &params);
+
+    status_t amendOutputFormatWithCodecSpecificData(const sp<MediaCodecBuffer> &buffer);
+    void updateBatteryStat();
+    bool isExecuting() const;
+
+    uint64_t getGraphicBufferSize();
+    void addResource(MediaResource::Type type, MediaResource::SubType subtype, uint64_t value);
+
+    bool hasPendingBuffer(int portIndex);
+    bool hasPendingBuffer();
+
+    /* called to get the last codec error when the sticky flag is set.
+     * if no such codec error is found, returns UNKNOWN_ERROR.
+     */
+    inline status_t getStickyError() const {
+        return mStickyError != 0 ? mStickyError : UNKNOWN_ERROR;
+    }
+
+    inline void setStickyError(status_t err) {
+        mFlags |= kFlagStickyError;
+        mStickyError = err;
+    }
+
+    void onReleaseCrypto(const sp<AMessage>& msg);
+
+    DISALLOW_EVIL_CONSTRUCTORS(MediaCodec);
+};
+
+}  // namespace android
+
+#endif  // MEDIA_CODEC_H_
diff --git a/media/libstagefright/include/MediaCodecList.h b/media/libstagefright/include/MediaCodecList.h
new file mode 100644
index 0000000..430bc16
--- /dev/null
+++ b/media/libstagefright/include/MediaCodecList.h
@@ -0,0 +1,154 @@
+/*
+ * Copyright 2012, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef MEDIA_CODEC_LIST_H_
+
+#define MEDIA_CODEC_LIST_H_
+
+#include <media/stagefright/foundation/ABase.h>
+#include <media/stagefright/foundation/AString.h>
+#include <media/IMediaCodecList.h>
+#include <media/IOMX.h>
+#include <media/MediaCodecInfo.h>
+
+#include <sys/types.h>
+#include <utils/Errors.h>
+#include <utils/KeyedVector.h>
+#include <utils/Vector.h>
+#include <utils/StrongPointer.h>
+
+namespace android {
+
+extern const char *kMaxEncoderInputBuffers;
+
+struct AMessage;
+
+struct MediaCodecList : public BnMediaCodecList {
+    static sp<IMediaCodecList> getInstance();
+
+    virtual ssize_t findCodecByType(
+            const char *type, bool encoder, size_t startIndex = 0) const;
+
+    virtual ssize_t findCodecByName(const char *name) const;
+
+    virtual size_t countCodecs() const;
+
+    virtual sp<MediaCodecInfo> getCodecInfo(size_t index) const {
+        if (index >= mCodecInfos.size()) {
+            ALOGE("b/24445127");
+            return NULL;
+        }
+        return mCodecInfos.itemAt(index);
+    }
+
+    virtual const sp<AMessage> getGlobalSettings() const;
+
+    // to be used by MediaPlayerService alone
+    static sp<IMediaCodecList> getLocalInstance();
+
+    // only to be used by getLocalInstance
+    static void *profilerThreadWrapper(void * /*arg*/);
+
+    // only to be used by MediaPlayerService
+    void parseTopLevelXMLFile(const char *path, bool ignore_errors = false);
+
+    enum Flags {
+        kPreferSoftwareCodecs   = 1,
+        kHardwareCodecsOnly     = 2,
+    };
+
+    static void findMatchingCodecs(
+            const char *mime,
+            bool createEncoder,
+            uint32_t flags,
+            Vector<AString> *matching);
+
+    static uint32_t getQuirksFor(const char *mComponentName);
+
+    static bool isSoftwareCodec(const AString &componentName);
+
+
+private:
+    class BinderDeathObserver : public IBinder::DeathRecipient {
+        void binderDied(const wp<IBinder> &the_late_who __unused);
+    };
+
+    static sp<BinderDeathObserver> sBinderDeathObserver;
+
+    enum Section {
+        SECTION_TOPLEVEL,
+        SECTION_SETTINGS,
+        SECTION_DECODERS,
+        SECTION_DECODER,
+        SECTION_DECODER_TYPE,
+        SECTION_ENCODERS,
+        SECTION_ENCODER,
+        SECTION_ENCODER_TYPE,
+        SECTION_INCLUDE,
+    };
+
+    static sp<IMediaCodecList> sCodecList;
+    static sp<IMediaCodecList> sRemoteList;
+
+    status_t mInitCheck;
+    Section mCurrentSection;
+    bool mUpdate;
+    Vector<Section> mPastSections;
+    int32_t mDepth;
+    AString mHrefBase;
+
+    sp<AMessage> mGlobalSettings;
+    KeyedVector<AString, CodecSettings> mOverrides;
+
+    Vector<sp<MediaCodecInfo> > mCodecInfos;
+    sp<MediaCodecInfo> mCurrentInfo;
+
+    MediaCodecList();
+    ~MediaCodecList();
+
+    status_t initCheck() const;
+    void parseXMLFile(const char *path);
+
+    static void StartElementHandlerWrapper(
+            void *me, const char *name, const char **attrs);
+
+    static void EndElementHandlerWrapper(void *me, const char *name);
+
+    void startElementHandler(const char *name, const char **attrs);
+    void endElementHandler(const char *name);
+
+    status_t includeXMLFile(const char **attrs);
+    status_t addSettingFromAttributes(const char **attrs);
+    status_t addMediaCodecFromAttributes(bool encoder, const char **attrs);
+    void addMediaCodec(bool encoder, const char *name, const char *type = NULL);
+
+    void setCurrentCodecInfo(bool encoder, const char *name, const char *type);
+
+    status_t addQuirk(const char **attrs);
+    status_t addTypeFromAttributes(const char **attrs);
+    status_t addLimit(const char **attrs);
+    status_t addFeature(const char **attrs);
+    void addType(const char *name);
+
+    status_t initializeCapabilities(const char *type);
+
+    DISALLOW_EVIL_CONSTRUCTORS(MediaCodecList);
+};
+
+}  // namespace android
+
+#endif  // MEDIA_CODEC_LIST_H_
+
diff --git a/media/libstagefright/include/MediaCodecSource.h b/media/libstagefright/include/MediaCodecSource.h
new file mode 100644
index 0000000..5e99b78
--- /dev/null
+++ b/media/libstagefright/include/MediaCodecSource.h
@@ -0,0 +1,168 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef MediaCodecSource_H_
+#define MediaCodecSource_H_
+
+#include <media/stagefright/foundation/ABase.h>
+#include <media/stagefright/foundation/AHandlerReflector.h>
+#include <media/stagefright/foundation/Mutexed.h>
+#include <media/stagefright/MediaSource.h>
+#include <media/stagefright/PersistentSurface.h>
+
+namespace android {
+
+struct ALooper;
+struct AMessage;
+struct AReplyToken;
+class IGraphicBufferProducer;
+struct MediaCodec;
+class MetaData;
+
+struct MediaCodecSource : public MediaSource,
+                          public MediaBufferObserver {
+    enum FlagBits {
+        FLAG_USE_SURFACE_INPUT      = 1,
+        FLAG_PREFER_SOFTWARE_CODEC  = 4,  // used for testing only
+    };
+
+    static sp<MediaCodecSource> Create(
+            const sp<ALooper> &looper,
+            const sp<AMessage> &format,
+            const sp<MediaSource> &source,
+            const sp<PersistentSurface> &persistentSurface = NULL,
+            uint32_t flags = 0);
+
+    bool isVideo() const { return mIsVideo; }
+    sp<IGraphicBufferProducer> getGraphicBufferProducer();
+    status_t setInputBufferTimeOffset(int64_t timeOffsetUs);
+    int64_t getFirstSampleSystemTimeUs();
+
+    // MediaSource
+    virtual status_t start(MetaData *params = NULL);
+    virtual status_t stop();
+    virtual status_t pause(MetaData *params = NULL);
+    virtual sp<MetaData> getFormat();
+    virtual status_t read(
+            MediaBuffer **buffer,
+            const ReadOptions *options = NULL);
+
+    // MediaBufferObserver
+    virtual void signalBufferReturned(MediaBuffer *buffer);
+
+    // for AHandlerReflector
+    void onMessageReceived(const sp<AMessage> &msg);
+
+    // Set GraphicBufferSource stop time. GraphicBufferSource will stop
+    // after receiving a buffer with timestamp larger or equal than stopTimeUs.
+    // All the buffers with timestamp larger or equal to stopTimeUs will be
+    // discarded. stopTimeUs uses SYSTEM_TIME_MONOTONIC time base.
+    status_t setStopStimeUs(int64_t stopTimeUs);
+
+protected:
+    virtual ~MediaCodecSource();
+
+private:
+    struct Puller;
+
+    enum {
+        kWhatPullerNotify,
+        kWhatEncoderActivity,
+        kWhatStart,
+        kWhatStop,
+        kWhatPause,
+        kWhatSetInputBufferTimeOffset,
+        kWhatSetStopTimeOffset,
+        kWhatGetFirstSampleSystemTimeUs,
+        kWhatStopStalled,
+    };
+
+    MediaCodecSource(
+            const sp<ALooper> &looper,
+            const sp<AMessage> &outputFormat,
+            const sp<MediaSource> &source,
+            const sp<PersistentSurface> &persistentSurface,
+            uint32_t flags = 0);
+
+    status_t onStart(MetaData *params);
+
+    // Pause the source at pauseStartTimeUs. For non-surface input,
+    // buffers will be dropped immediately. For surface input, buffers
+    // with timestamp smaller than pauseStartTimeUs will still be encoded.
+    // Buffers with timestamp larger or queal to pauseStartTimeUs will be
+    // dropped. pauseStartTimeUs uses SYSTEM_TIME_MONOTONIC time base.
+    void onPause(int64_t pauseStartTimeUs);
+
+    status_t init();
+    status_t initEncoder();
+    void releaseEncoder();
+    status_t feedEncoderInputBuffers();
+    // Resume GraphicBufferSource at resumeStartTimeUs. Buffers
+    // from GraphicBufferSource with timestamp larger or equal to
+    // resumeStartTimeUs will be encoded. resumeStartTimeUs uses
+    // SYSTEM_TIME_MONOTONIC time base.
+    void resume(int64_t resumeStartTimeUs = -1ll);
+    void signalEOS(status_t err = ERROR_END_OF_STREAM);
+    bool reachedEOS();
+    status_t postSynchronouslyAndReturnError(const sp<AMessage> &msg);
+
+    sp<ALooper> mLooper;
+    sp<ALooper> mCodecLooper;
+    sp<AHandlerReflector<MediaCodecSource> > mReflector;
+    sp<AMessage> mOutputFormat;
+    Mutexed<sp<MetaData>> mMeta;
+    sp<Puller> mPuller;
+    sp<MediaCodec> mEncoder;
+    uint32_t mFlags;
+    List<sp<AReplyToken>> mStopReplyIDQueue;
+    bool mIsVideo;
+    bool mStarted;
+    bool mStopping;
+    bool mDoMoreWorkPending;
+    bool mSetEncoderFormat;
+    int32_t mEncoderFormat;
+    int32_t mEncoderDataSpace;
+    sp<AMessage> mEncoderActivityNotify;
+    sp<IGraphicBufferProducer> mGraphicBufferProducer;
+    sp<PersistentSurface> mPersistentSurface;
+    List<MediaBuffer *> mInputBufferQueue;
+    List<size_t> mAvailEncoderInputIndices;
+    List<int64_t> mDecodingTimeQueue; // decoding time (us) for video
+    int64_t mInputBufferTimeOffsetUs;
+    int64_t mFirstSampleSystemTimeUs;
+    bool mPausePending;
+
+    // audio drift time
+    int64_t mFirstSampleTimeUs;
+    List<int64_t> mDriftTimeQueue;
+
+    struct Output {
+        Output();
+        List<MediaBuffer*> mBufferQueue;
+        bool mEncoderReachedEOS;
+        status_t mErrorCode;
+        Condition mCond;
+    };
+    Mutexed<Output> mOutput;
+
+    int32_t mGeneration;
+
+    DISALLOW_EVIL_CONSTRUCTORS(MediaCodecSource);
+};
+
+} // namespace android
+
+#endif /* MediaCodecSource_H_ */
diff --git a/media/libstagefright/include/MediaDefs.h b/media/libstagefright/include/MediaDefs.h
new file mode 100644
index 0000000..359fb69
--- /dev/null
+++ b/media/libstagefright/include/MediaDefs.h
@@ -0,0 +1,31 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+#ifndef STAGEFRIGHT_MEDIA_DEFS_H_
+#define STAGEFRIGHT_MEDIA_DEFS_H_
+
+/*
+ * Please, DO NOT USE!
+ *
+ * This file is here only for legacy reasons. Instead, include directly
+ * the header below.
+ *
+ */
+
+#include <media/MediaDefs.h>
+
+#endif  // STAGEFRIGHT_MEDIA_DEFS_H_
diff --git a/include/media/stagefright/MediaErrors.h b/media/libstagefright/include/MediaErrors.h
similarity index 100%
rename from include/media/stagefright/MediaErrors.h
rename to media/libstagefright/include/MediaErrors.h
diff --git a/media/libstagefright/include/MediaExtractor.h b/media/libstagefright/include/MediaExtractor.h
new file mode 100644
index 0000000..073391f
--- /dev/null
+++ b/media/libstagefright/include/MediaExtractor.h
@@ -0,0 +1,113 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef MEDIA_EXTRACTOR_H_
+
+#define MEDIA_EXTRACTOR_H_
+
+#include <media/IMediaExtractor.h>
+#include <media/IMediaSource.h>
+#include <media/MediaAnalyticsItem.h>
+
+namespace android {
+namespace media {
+class ICas;
+};
+using namespace media;
+class DataSource;
+struct MediaSource;
+class MetaData;
+
+class MediaExtractor : public BnMediaExtractor {
+public:
+    static sp<IMediaExtractor> Create(
+            const sp<DataSource> &source, const char *mime = NULL);
+    static sp<MediaExtractor> CreateFromService(
+            const sp<DataSource> &source, const char *mime = NULL);
+
+    virtual size_t countTracks() = 0;
+    virtual sp<IMediaSource> getTrack(size_t index) = 0;
+
+    enum GetTrackMetaDataFlags {
+        kIncludeExtensiveMetaData = 1
+    };
+    virtual sp<MetaData> getTrackMetaData(
+            size_t index, uint32_t flags = 0) = 0;
+
+    // Return container specific meta-data. The default implementation
+    // returns an empty metadata object.
+    virtual sp<MetaData> getMetaData();
+
+    status_t getMetrics(Parcel *reply);
+
+    enum Flags {
+        CAN_SEEK_BACKWARD  = 1,  // the "seek 10secs back button"
+        CAN_SEEK_FORWARD   = 2,  // the "seek 10secs forward button"
+        CAN_PAUSE          = 4,
+        CAN_SEEK           = 8,  // the "seek bar"
+    };
+
+    // If subclasses do _not_ override this, the default is
+    // CAN_SEEK_BACKWARD | CAN_SEEK_FORWARD | CAN_SEEK | CAN_PAUSE
+    virtual uint32_t flags() const;
+
+    // for DRM
+    virtual char* getDrmTrackInfo(size_t /*trackID*/, int * /*len*/) {
+        return NULL;
+    }
+    virtual void setUID(uid_t /*uid*/) {
+    }
+    virtual status_t setMediaCas(const sp<ICas> &cas) override {
+        return INVALID_OPERATION;
+    }
+
+    virtual const char * name() { return "<unspecified>"; }
+
+protected:
+    MediaExtractor();
+    virtual ~MediaExtractor();
+
+    MediaAnalyticsItem *mAnalyticsItem;
+
+    virtual void populateMetrics();
+
+private:
+
+    typedef bool (*SnifferFunc)(
+            const sp<DataSource> &source, String8 *mimeType,
+            float *confidence, sp<AMessage> *meta);
+
+    static Mutex gSnifferMutex;
+    static List<SnifferFunc> gSniffers;
+    static bool gSniffersRegistered;
+
+    // The sniffer can optionally fill in "meta" with an AMessage containing
+    // a dictionary of values that helps the corresponding extractor initialize
+    // its state without duplicating effort already exerted by the sniffer.
+    static void RegisterSniffer_l(SnifferFunc func);
+
+    static bool sniff(const sp<DataSource> &source,
+            String8 *mimeType, float *confidence, sp<AMessage> *meta);
+
+    static void RegisterDefaultSniffers();
+
+    MediaExtractor(const MediaExtractor &);
+    MediaExtractor &operator=(const MediaExtractor &);
+};
+
+}  // namespace android
+
+#endif  // MEDIA_EXTRACTOR_H_
diff --git a/media/libstagefright/include/MediaFilter.h b/media/libstagefright/include/MediaFilter.h
new file mode 100644
index 0000000..0c10d11
--- /dev/null
+++ b/media/libstagefright/include/MediaFilter.h
@@ -0,0 +1,149 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef MEDIA_FILTER_H_
+#define MEDIA_FILTER_H_
+
+#include <media/stagefright/CodecBase.h>
+
+namespace android {
+
+class ACodecBufferChannel;
+struct GraphicBufferListener;
+class MemoryDealer;
+struct SimpleFilter;
+
+struct MediaFilter : public CodecBase {
+    MediaFilter();
+
+    virtual std::shared_ptr<BufferChannelBase> getBufferChannel() override;
+    virtual void initiateAllocateComponent(const sp<AMessage> &msg);
+    virtual void initiateConfigureComponent(const sp<AMessage> &msg);
+    virtual void initiateCreateInputSurface();
+    virtual void initiateSetInputSurface(const sp<PersistentSurface> &surface);
+
+    virtual void initiateStart();
+    virtual void initiateShutdown(bool keepComponentAllocated = false);
+
+    virtual void signalFlush();
+    virtual void signalResume();
+
+    virtual void signalRequestIDRFrame();
+    virtual void signalSetParameters(const sp<AMessage> &msg);
+    virtual void signalEndOfInputStream();
+
+    virtual void onMessageReceived(const sp<AMessage> &msg);
+
+protected:
+    virtual ~MediaFilter();
+
+private:
+    struct BufferInfo {
+        enum Status {
+            OWNED_BY_US,
+            OWNED_BY_UPSTREAM,
+        };
+
+        IOMX::buffer_id mBufferID;
+        int32_t mGeneration;
+        int32_t mOutputFlags;
+        Status mStatus;
+
+        sp<MediaCodecBuffer> mData;
+    };
+
+    enum State {
+      UNINITIALIZED,
+      INITIALIZED,
+      CONFIGURED,
+      STARTED,
+    };
+
+    enum {
+        kWhatInputBufferFilled       = 'inpF',
+        kWhatOutputBufferDrained     = 'outD',
+        kWhatShutdown                = 'shut',
+        kWhatFlush                   = 'flus',
+        kWhatResume                  = 'resm',
+        kWhatAllocateComponent       = 'allo',
+        kWhatConfigureComponent      = 'conf',
+        kWhatCreateInputSurface      = 'cisf',
+        kWhatSignalEndOfInputStream  = 'eois',
+        kWhatStart                   = 'star',
+        kWhatSetParameters           = 'setP',
+        kWhatProcessBuffers          = 'proc',
+    };
+
+    enum {
+        kPortIndexInput  = 0,
+        kPortIndexOutput = 1
+    };
+
+    // member variables
+    AString mComponentName;
+    State mState;
+    status_t mInputEOSResult;
+    int32_t mWidth, mHeight;
+    int32_t mStride, mSliceHeight;
+    int32_t mColorFormatIn, mColorFormatOut;
+    size_t mMaxInputSize, mMaxOutputSize;
+    int32_t mGeneration;
+    sp<AMessage> mInputFormat;
+    sp<AMessage> mOutputFormat;
+
+    sp<MemoryDealer> mDealer[2];
+    Vector<BufferInfo> mBuffers[2];
+    Vector<BufferInfo*> mAvailableInputBuffers;
+    Vector<BufferInfo*> mAvailableOutputBuffers;
+    bool mPortEOS[2];
+
+    sp<SimpleFilter> mFilter;
+    sp<GraphicBufferListener> mGraphicBufferListener;
+
+    std::shared_ptr<ACodecBufferChannel> mBufferChannel;
+
+    // helper functions
+    void signalProcessBuffers();
+    void signalError(status_t error);
+
+    status_t allocateBuffersOnPort(OMX_U32 portIndex);
+    BufferInfo *findBufferByID(
+            uint32_t portIndex, IOMX::buffer_id bufferID,
+            ssize_t *index = NULL);
+    void postFillThisBuffer(BufferInfo *info);
+    void postDrainThisBuffer(BufferInfo *info);
+    void postEOS();
+    void requestFillEmptyInput();
+    void processBuffers();
+
+    void onAllocateComponent(const sp<AMessage> &msg);
+    void onConfigureComponent(const sp<AMessage> &msg);
+    void onStart();
+    void onInputBufferFilled(const sp<AMessage> &msg);
+    void onOutputBufferDrained(const sp<AMessage> &msg);
+    void onShutdown(const sp<AMessage> &msg);
+    void onFlush();
+    void onSetParameters(const sp<AMessage> &msg);
+    void onCreateInputSurface();
+    void onInputFrameAvailable();
+    void onSignalEndOfInputStream();
+
+    DISALLOW_EVIL_CONSTRUCTORS(MediaFilter);
+};
+
+}  // namespace android
+
+#endif  // MEDIA_FILTER_H_
diff --git a/include/media/stagefright/MediaHTTP.h b/media/libstagefright/include/MediaHTTP.h
similarity index 100%
rename from include/media/stagefright/MediaHTTP.h
rename to media/libstagefright/include/MediaHTTP.h
diff --git a/media/libstagefright/include/MediaMuxer.h b/media/libstagefright/include/MediaMuxer.h
new file mode 100644
index 0000000..63c3ca5
--- /dev/null
+++ b/media/libstagefright/include/MediaMuxer.h
@@ -0,0 +1,140 @@
+/*
+ * Copyright 2013, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef MEDIA_MUXER_H_
+#define MEDIA_MUXER_H_
+
+#include <utils/Errors.h>
+#include <utils/RefBase.h>
+#include <utils/Vector.h>
+#include <utils/threads.h>
+
+#include "foundation/ABase.h"
+
+namespace android {
+
+struct ABuffer;
+struct AMessage;
+struct MediaAdapter;
+class MediaBuffer;
+struct MediaSource;
+class MetaData;
+struct MediaWriter;
+
+// MediaMuxer is used to mux multiple tracks into a video. Currently, we only
+// support a mp4 file as the output.
+// The expected calling order of the functions is:
+// Constructor -> addTrack+ -> start -> writeSampleData+ -> stop
+// If muxing operation need to be cancelled, the app is responsible for
+// deleting the output file after stop.
+struct MediaMuxer : public RefBase {
+public:
+    // Please update media/java/android/media/MediaMuxer.java if the
+    // OutputFormat is updated.
+    enum OutputFormat {
+        OUTPUT_FORMAT_MPEG_4      = 0,
+        OUTPUT_FORMAT_WEBM        = 1,
+        OUTPUT_FORMAT_THREE_GPP   = 2,
+        OUTPUT_FORMAT_LIST_END // must be last - used to validate format type
+    };
+
+    // Construct the muxer with the file descriptor. Note that the MediaMuxer
+    // will close this file at stop().
+    MediaMuxer(int fd, OutputFormat format);
+
+    virtual ~MediaMuxer();
+
+    /**
+     * Add a track with its format information. This should be
+     * called before start().
+     * @param format the track's format.
+     * @return the track's index or negative number if error.
+     */
+    ssize_t addTrack(const sp<AMessage> &format);
+
+    /**
+     * Start muxing. Make sure all the tracks have been added before
+     * calling this.
+     */
+    status_t start();
+
+    /**
+     * Set the orientation hint.
+     * @param degrees The rotation degrees. It has to be either 0,
+     *                90, 180 or 270.
+     * @return OK if no error.
+     */
+    status_t setOrientationHint(int degrees);
+
+    /**
+     * Set the location.
+     * @param latitude The latitude in degree x 1000. Its value must be in the range
+     * [-900000, 900000].
+     * @param longitude The longitude in degree x 1000. Its value must be in the range
+     * [-1800000, 1800000].
+     * @return OK if no error.
+     */
+    status_t setLocation(int latitude, int longitude);
+
+    /**
+     * Stop muxing.
+     * This method is a blocking call. Depending on how
+     * much data is bufferred internally, the time needed for stopping
+     * the muxer may be time consuming. UI thread is
+     * not recommended for launching this call.
+     * @return OK if no error.
+     */
+    status_t stop();
+
+    /**
+     * Send a sample buffer for muxing.
+     * The buffer can be reused once this method returns. Typically,
+     * this function won't be blocked for very long, and thus there
+     * is no need to use a separate thread calling this method to
+     * push a buffer.
+     * @param buffer the incoming sample buffer.
+     * @param trackIndex the buffer's track index number.
+     * @param timeUs the buffer's time stamp.
+     * @param flags the only supported flag for now is
+     *              MediaCodec::BUFFER_FLAG_SYNCFRAME.
+     * @return OK if no error.
+     */
+    status_t writeSampleData(const sp<ABuffer> &buffer, size_t trackIndex,
+                             int64_t timeUs, uint32_t flags) ;
+
+private:
+    const OutputFormat mFormat;
+    sp<MediaWriter> mWriter;
+    Vector< sp<MediaAdapter> > mTrackList;  // Each track has its MediaAdapter.
+    sp<MetaData> mFileMeta;  // Metadata for the whole file.
+
+    Mutex mMuxerLock;
+
+    enum State {
+        UNINITIALIZED,
+        INITIALIZED,
+        STARTED,
+        STOPPED
+    };
+    State mState;
+
+    DISALLOW_EVIL_CONSTRUCTORS(MediaMuxer);
+};
+
+}  // namespace android
+
+#endif  // MEDIA_MUXER_H_
+
diff --git a/include/media/stagefright/MediaSource.h b/media/libstagefright/include/MediaSource.h
similarity index 100%
rename from include/media/stagefright/MediaSource.h
rename to media/libstagefright/include/MediaSource.h
diff --git a/include/media/stagefright/MediaSync.h b/media/libstagefright/include/MediaSync.h
similarity index 100%
rename from include/media/stagefright/MediaSync.h
rename to media/libstagefright/include/MediaSync.h
diff --git a/media/libstagefright/include/MediaWriter.h b/media/libstagefright/include/MediaWriter.h
new file mode 100644
index 0000000..9c30ffa
--- /dev/null
+++ b/media/libstagefright/include/MediaWriter.h
@@ -0,0 +1,73 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef MEDIA_WRITER_H_
+
+#define MEDIA_WRITER_H_
+
+#include <utils/RefBase.h>
+#include <media/IMediaRecorderClient.h>
+#include <media/IMediaSource.h>
+
+namespace android {
+
+class MetaData;
+
+struct MediaWriter : public RefBase {
+    MediaWriter()
+        : mMaxFileSizeLimitBytes(0),
+          mMaxFileDurationLimitUs(0) {
+    }
+
+    virtual status_t addSource(const sp<IMediaSource> &source) = 0;
+    virtual bool reachedEOS() = 0;
+    virtual status_t start(MetaData *params = NULL) = 0;
+    virtual status_t stop() = 0;
+    virtual status_t pause() = 0;
+
+    virtual void setMaxFileSize(int64_t bytes) { mMaxFileSizeLimitBytes = bytes; }
+    virtual void setMaxFileDuration(int64_t durationUs) { mMaxFileDurationLimitUs = durationUs; }
+    virtual void setListener(const sp<IMediaRecorderClient>& listener) {
+        mListener = listener;
+    }
+
+    virtual status_t dump(int /*fd*/, const Vector<String16>& /*args*/) {
+        return OK;
+    }
+
+    virtual void setStartTimeOffsetMs(int /*ms*/) {}
+    virtual int32_t getStartTimeOffsetMs() const { return 0; }
+    virtual status_t setNextFd(int fd) { return INVALID_OPERATION; }
+
+protected:
+    virtual ~MediaWriter() {}
+    int64_t mMaxFileSizeLimitBytes;
+    int64_t mMaxFileDurationLimitUs;
+    sp<IMediaRecorderClient> mListener;
+
+    void notify(int msg, int ext1, int ext2) {
+        if (mListener != NULL) {
+            mListener->notify(msg, ext1, ext2);
+        }
+    }
+private:
+    MediaWriter(const MediaWriter &);
+    MediaWriter &operator=(const MediaWriter &);
+};
+
+}  // namespace android
+
+#endif  // MEDIA_WRITER_H_
diff --git a/media/libstagefright/include/MetaData.h b/media/libstagefright/include/MetaData.h
new file mode 100644
index 0000000..214f4ff
--- /dev/null
+++ b/media/libstagefright/include/MetaData.h
@@ -0,0 +1,326 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef META_DATA_H_
+
+#define META_DATA_H_
+
+#include <sys/types.h>
+
+#include <stdint.h>
+
+#include <binder/Parcel.h>
+#include <utils/RefBase.h>
+#include <utils/KeyedVector.h>
+#include <utils/String8.h>
+
+namespace android {
+
+// The following keys map to int32_t data unless indicated otherwise.
+enum {
+    kKeyMIMEType          = 'mime',  // cstring
+    kKeyWidth             = 'widt',  // int32_t, image pixel
+    kKeyHeight            = 'heig',  // int32_t, image pixel
+    kKeyDisplayWidth      = 'dWid',  // int32_t, display/presentation
+    kKeyDisplayHeight     = 'dHgt',  // int32_t, display/presentation
+    kKeySARWidth          = 'sarW',  // int32_t, sampleAspectRatio width
+    kKeySARHeight         = 'sarH',  // int32_t, sampleAspectRatio height
+
+    // a rectangle, if absent assumed to be (0, 0, width - 1, height - 1)
+    kKeyCropRect          = 'crop',
+
+    kKeyRotation          = 'rotA',  // int32_t (angle in degrees)
+    kKeyIFramesInterval   = 'ifiv',  // int32_t
+    kKeyStride            = 'strd',  // int32_t
+    kKeySliceHeight       = 'slht',  // int32_t
+    kKeyChannelCount      = '#chn',  // int32_t
+    kKeyChannelMask       = 'chnm',  // int32_t
+    kKeySampleRate        = 'srte',  // int32_t (audio sampling rate Hz)
+    kKeyPcmEncoding       = 'PCMe',  // int32_t (audio encoding enum)
+    kKeyFrameRate         = 'frmR',  // int32_t (video frame rate fps)
+    kKeyBitRate           = 'brte',  // int32_t (bps)
+    kKeyMaxBitRate        = 'mxBr',  // int32_t (bps)
+    kKeyStreamHeader      = 'stHd',  // raw data
+    kKeyESDS              = 'esds',  // raw data
+    kKeyAACProfile        = 'aacp',  // int32_t
+    kKeyAVCC              = 'avcc',  // raw data
+    kKeyHVCC              = 'hvcc',  // raw data
+    kKeyD263              = 'd263',  // raw data
+    kKeyVorbisInfo        = 'vinf',  // raw data
+    kKeyVorbisBooks       = 'vboo',  // raw data
+    kKeyOpusHeader        = 'ohdr',  // raw data
+    kKeyOpusCodecDelay    = 'ocod',  // uint64_t (codec delay in ns)
+    kKeyOpusSeekPreRoll   = 'ospr',  // uint64_t (seek preroll in ns)
+    kKeyVp9CodecPrivate   = 'vp9p',  // raw data (vp9 csd information)
+    kKeyWantsNALFragments = 'NALf',
+    kKeyIsSyncFrame       = 'sync',  // int32_t (bool)
+    kKeyIsCodecConfig     = 'conf',  // int32_t (bool)
+    kKeyTime              = 'time',  // int64_t (usecs)
+    kKeyDecodingTime      = 'decT',  // int64_t (decoding timestamp in usecs)
+    kKeyNTPTime           = 'ntpT',  // uint64_t (ntp-timestamp)
+    kKeyTargetTime        = 'tarT',  // int64_t (usecs)
+    kKeyDriftTime         = 'dftT',  // int64_t (usecs)
+    kKeyAnchorTime        = 'ancT',  // int64_t (usecs)
+    kKeyDuration          = 'dura',  // int64_t (usecs)
+    kKeyPixelFormat       = 'pixf',  // int32_t
+    kKeyColorFormat       = 'colf',  // int32_t
+    kKeyColorSpace        = 'cols',  // int32_t
+    kKeyPlatformPrivate   = 'priv',  // pointer
+    kKeyDecoderComponent  = 'decC',  // cstring
+    kKeyBufferID          = 'bfID',
+    kKeyMaxInputSize      = 'inpS',
+    kKeyMaxWidth          = 'maxW',
+    kKeyMaxHeight         = 'maxH',
+    kKeyThumbnailTime     = 'thbT',  // int64_t (usecs)
+    kKeyTrackID           = 'trID',
+    kKeyIsDRM             = 'idrm',  // int32_t (bool)
+    kKeyEncoderDelay      = 'encd',  // int32_t (frames)
+    kKeyEncoderPadding    = 'encp',  // int32_t (frames)
+
+    kKeyAlbum             = 'albu',  // cstring
+    kKeyArtist            = 'arti',  // cstring
+    kKeyAlbumArtist       = 'aart',  // cstring
+    kKeyComposer          = 'comp',  // cstring
+    kKeyGenre             = 'genr',  // cstring
+    kKeyTitle             = 'titl',  // cstring
+    kKeyYear              = 'year',  // cstring
+    kKeyAlbumArt          = 'albA',  // compressed image data
+    kKeyAlbumArtMIME      = 'alAM',  // cstring
+    kKeyAuthor            = 'auth',  // cstring
+    kKeyCDTrackNumber     = 'cdtr',  // cstring
+    kKeyDiscNumber        = 'dnum',  // cstring
+    kKeyDate              = 'date',  // cstring
+    kKeyWriter            = 'writ',  // cstring
+    kKeyCompilation       = 'cpil',  // cstring
+    kKeyLocation          = 'loc ',  // cstring
+    kKeyTimeScale         = 'tmsl',  // int32_t
+    kKeyCaptureFramerate  = 'capF',  // float (capture fps)
+
+    // video profile and level
+    kKeyVideoProfile      = 'vprf',  // int32_t
+    kKeyVideoLevel        = 'vlev',  // int32_t
+
+    // Set this key to enable authoring files in 64-bit offset
+    kKey64BitFileOffset   = 'fobt',  // int32_t (bool)
+    kKey2ByteNalLength    = '2NAL',  // int32_t (bool)
+
+    // Identify the file output format for authoring
+    // Please see <media/mediarecorder.h> for the supported
+    // file output formats.
+    kKeyFileType          = 'ftyp',  // int32_t
+
+    // Track authoring progress status
+    // kKeyTrackTimeStatus is used to track progress in elapsed time
+    kKeyTrackTimeStatus   = 'tktm',  // int64_t
+
+    kKeyRealTimeRecording = 'rtrc',  // bool (int32_t)
+    kKeyNumBuffers        = 'nbbf',  // int32_t
+
+    // Ogg files can be tagged to be automatically looping...
+    kKeyAutoLoop          = 'autL',  // bool (int32_t)
+
+    kKeyValidSamples      = 'valD',  // int32_t
+
+    kKeyIsUnreadable      = 'unre',  // bool (int32_t)
+
+    // An indication that a video buffer has been rendered.
+    kKeyRendered          = 'rend',  // bool (int32_t)
+
+    // The language code for this media
+    kKeyMediaLanguage     = 'lang',  // cstring
+
+    // To store the timed text format data
+    kKeyTextFormatData    = 'text',  // raw data
+
+    kKeyRequiresSecureBuffers = 'secu',  // bool (int32_t)
+
+    kKeyIsADTS            = 'adts',  // bool (int32_t)
+    kKeyAACAOT            = 'aaot',  // int32_t
+
+    // If a MediaBuffer's data represents (at least partially) encrypted
+    // data, the following fields aid in decryption.
+    // The data can be thought of as pairs of plain and encrypted data
+    // fragments, i.e. plain and encrypted data alternate.
+    // The first fragment is by convention plain data (if that's not the
+    // case, simply specify plain fragment size of 0).
+    // kKeyEncryptedSizes and kKeyPlainSizes each map to an array of
+    // size_t values. The sum total of all size_t values of both arrays
+    // must equal the amount of data (i.e. MediaBuffer's range_length()).
+    // If both arrays are present, they must be of the same size.
+    // If only encrypted sizes are present it is assumed that all
+    // plain sizes are 0, i.e. all fragments are encrypted.
+    // To programmatically set these array, use the MetaData::setData API, i.e.
+    // const size_t encSizes[];
+    // meta->setData(
+    //  kKeyEncryptedSizes, 0 /* type */, encSizes, sizeof(encSizes));
+    // A plain sizes array by itself makes no sense.
+    kKeyEncryptedSizes    = 'encr',  // size_t[]
+    kKeyPlainSizes        = 'plai',  // size_t[]
+    kKeyCryptoKey         = 'cryK',  // uint8_t[16]
+    kKeyCryptoIV          = 'cryI',  // uint8_t[16]
+    kKeyCryptoMode        = 'cryM',  // int32_t
+
+    kKeyCryptoDefaultIVSize = 'cryS',  // int32_t
+
+    kKeyPssh              = 'pssh',  // raw data
+    kKeyCas               = ' cas',
+
+    // Please see MediaFormat.KEY_IS_AUTOSELECT.
+    kKeyTrackIsAutoselect = 'auto', // bool (int32_t)
+    // Please see MediaFormat.KEY_IS_DEFAULT.
+    kKeyTrackIsDefault    = 'dflt', // bool (int32_t)
+    // Similar to MediaFormat.KEY_IS_FORCED_SUBTITLE but pertains to av tracks as well.
+    kKeyTrackIsForced     = 'frcd', // bool (int32_t)
+
+    // H264 supplemental enhancement information offsets/sizes
+    kKeySEI               = 'sei ', // raw data
+
+    // MPEG user data offsets
+    kKeyMpegUserData      = 'mpud', // size_t[]
+
+    // Size of NALU length in mkv/mp4
+    kKeyNalLengthSize     = 'nals', // int32_t
+
+    // HDR related
+    kKeyHdrStaticInfo    = 'hdrS', // HDRStaticInfo
+
+    // color aspects
+    kKeyColorRange       = 'cRng', // int32_t, color range, value defined by ColorAspects.Range
+    kKeyColorPrimaries   = 'cPrm', // int32_t,
+                                   // color Primaries, value defined by ColorAspects.Primaries
+    kKeyTransferFunction = 'tFun', // int32_t,
+                                   // transfer Function, value defined by ColorAspects.Transfer.
+    kKeyColorMatrix      = 'cMtx', // int32_t,
+                                   // color Matrix, value defined by ColorAspects.MatrixCoeffs.
+    kKeyTemporalLayerId  = 'iLyr', // int32_t, temporal layer-id. 0-based (0 => base layer)
+    kKeyTemporalLayerCount = 'cLyr', // int32_t, number of temporal layers encoded
+};
+
+enum {
+    kTypeESDS        = 'esds',
+    kTypeAVCC        = 'avcc',
+    kTypeHVCC        = 'hvcc',
+    kTypeD263        = 'd263',
+};
+
+class MetaData : public RefBase {
+public:
+    MetaData();
+    MetaData(const MetaData &from);
+
+    enum Type {
+        TYPE_NONE     = 'none',
+        TYPE_C_STRING = 'cstr',
+        TYPE_INT32    = 'in32',
+        TYPE_INT64    = 'in64',
+        TYPE_FLOAT    = 'floa',
+        TYPE_POINTER  = 'ptr ',
+        TYPE_RECT     = 'rect',
+    };
+
+    void clear();
+    bool remove(uint32_t key);
+
+    bool setCString(uint32_t key, const char *value);
+    bool setInt32(uint32_t key, int32_t value);
+    bool setInt64(uint32_t key, int64_t value);
+    bool setFloat(uint32_t key, float value);
+    bool setPointer(uint32_t key, void *value);
+
+    bool setRect(
+            uint32_t key,
+            int32_t left, int32_t top,
+            int32_t right, int32_t bottom);
+
+    bool findCString(uint32_t key, const char **value);
+    bool findInt32(uint32_t key, int32_t *value);
+    bool findInt64(uint32_t key, int64_t *value);
+    bool findFloat(uint32_t key, float *value);
+    bool findPointer(uint32_t key, void **value);
+
+    bool findRect(
+            uint32_t key,
+            int32_t *left, int32_t *top,
+            int32_t *right, int32_t *bottom);
+
+    bool setData(uint32_t key, uint32_t type, const void *data, size_t size);
+
+    bool findData(uint32_t key, uint32_t *type,
+                  const void **data, size_t *size) const;
+
+    bool hasData(uint32_t key) const;
+
+    String8 toString() const;
+    void dumpToLog() const;
+
+    status_t writeToParcel(Parcel &parcel);
+    status_t updateFromParcel(const Parcel &parcel);
+    static sp<MetaData> createFromParcel(const Parcel &parcel);
+
+protected:
+    virtual ~MetaData();
+
+private:
+    struct typed_data {
+        typed_data();
+        ~typed_data();
+
+        typed_data(const MetaData::typed_data &);
+        typed_data &operator=(const MetaData::typed_data &);
+
+        void clear();
+        void setData(uint32_t type, const void *data, size_t size);
+        void getData(uint32_t *type, const void **data, size_t *size) const;
+        // may include hexdump of binary data if verbose=true
+        String8 asString(bool verbose) const;
+
+    private:
+        uint32_t mType;
+        size_t mSize;
+
+        union {
+            void *ext_data;
+            float reservoir;
+        } u;
+
+        bool usesReservoir() const {
+            return mSize <= sizeof(u.reservoir);
+        }
+
+        void *allocateStorage(size_t size);
+        void freeStorage();
+
+        void *storage() {
+            return usesReservoir() ? &u.reservoir : u.ext_data;
+        }
+
+        const void *storage() const {
+            return usesReservoir() ? &u.reservoir : u.ext_data;
+        }
+    };
+
+    struct Rect {
+        int32_t mLeft, mTop, mRight, mBottom;
+    };
+
+    KeyedVector<uint32_t, typed_data> mItems;
+
+    // MetaData &operator=(const MetaData &);
+};
+
+}  // namespace android
+
+#endif  // META_DATA_H_
diff --git a/media/libstagefright/include/NuMediaExtractor.h b/media/libstagefright/include/NuMediaExtractor.h
new file mode 100644
index 0000000..3e3cc17
--- /dev/null
+++ b/media/libstagefright/include/NuMediaExtractor.h
@@ -0,0 +1,141 @@
+/*
+ * Copyright 2012, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef NU_MEDIA_EXTRACTOR_H_
+#define NU_MEDIA_EXTRACTOR_H_
+
+#include <media/stagefright/foundation/ABase.h>
+#include <media/stagefright/MediaSource.h>
+#include <media/IMediaExtractor.h>
+#include <utils/Errors.h>
+#include <utils/KeyedVector.h>
+#include <utils/RefBase.h>
+#include <utils/String8.h>
+#include <utils/threads.h>
+#include <utils/Vector.h>
+
+namespace android {
+namespace media {
+class ICas;
+}
+using namespace media;
+
+struct ABuffer;
+struct AMessage;
+class DataSource;
+struct IMediaHTTPService;
+class MediaBuffer;
+class MediaExtractor;
+struct MediaSource;
+class MetaData;
+
+struct NuMediaExtractor : public RefBase {
+    enum SampleFlags {
+        SAMPLE_FLAG_SYNC        = 1,
+        SAMPLE_FLAG_ENCRYPTED   = 2,
+    };
+
+    // identical to IMediaExtractor::GetTrackMetaDataFlags
+    enum GetTrackFormatFlags {
+        kIncludeExtensiveMetaData = 1, // reads sample table and possibly stream headers
+    };
+
+    NuMediaExtractor();
+
+    status_t setDataSource(
+            const sp<IMediaHTTPService> &httpService,
+            const char *path,
+            const KeyedVector<String8, String8> *headers = NULL);
+
+    status_t setDataSource(int fd, off64_t offset, off64_t size);
+
+    status_t setDataSource(const sp<DataSource> &datasource);
+
+    status_t setMediaCas(const sp<ICas> &cas);
+
+    size_t countTracks() const;
+    status_t getTrackFormat(size_t index, sp<AMessage> *format, uint32_t flags = 0) const;
+
+    status_t getFileFormat(sp<AMessage> *format) const;
+
+    status_t selectTrack(size_t index);
+    status_t unselectTrack(size_t index);
+
+    status_t seekTo(
+            int64_t timeUs,
+            MediaSource::ReadOptions::SeekMode mode =
+                MediaSource::ReadOptions::SEEK_CLOSEST_SYNC);
+
+    status_t advance();
+    status_t readSampleData(const sp<ABuffer> &buffer);
+    status_t getSampleTrackIndex(size_t *trackIndex);
+    status_t getSampleTime(int64_t *sampleTimeUs);
+    status_t getSampleMeta(sp<MetaData> *sampleMeta);
+    status_t getMetrics(Parcel *reply);
+
+    bool getCachedDuration(int64_t *durationUs, bool *eos) const;
+
+protected:
+    virtual ~NuMediaExtractor();
+
+private:
+    enum TrackFlags {
+        kIsVorbis       = 1,
+    };
+
+    enum {
+        kMaxTrackCount = 16384,
+    };
+
+    struct TrackInfo {
+        sp<IMediaSource> mSource;
+        size_t mTrackIndex;
+        status_t mFinalResult;
+        MediaBuffer *mSample;
+        int64_t mSampleTimeUs;
+
+        uint32_t mTrackFlags;  // bitmask of "TrackFlags"
+    };
+
+    mutable Mutex mLock;
+
+    sp<DataSource> mDataSource;
+
+    sp<IMediaExtractor> mImpl;
+    sp<ICas> mCas;
+
+    Vector<TrackInfo> mSelectedTracks;
+    int64_t mTotalBitrate;  // in bits/sec
+    int64_t mDurationUs;
+
+    ssize_t fetchTrackSamples(
+            int64_t seekTimeUs = -1ll,
+            MediaSource::ReadOptions::SeekMode mode =
+                MediaSource::ReadOptions::SEEK_CLOSEST_SYNC);
+
+    void releaseTrackSamples();
+
+    bool getTotalBitrate(int64_t *bitRate) const;
+    status_t updateDurationAndBitrate();
+    status_t appendVorbisNumPageSamples(TrackInfo *info, const sp<ABuffer> &buffer);
+
+    DISALLOW_EVIL_CONSTRUCTORS(NuMediaExtractor);
+};
+
+}  // namespace android
+
+#endif  // NU_MEDIA_EXTRACTOR_H_
+
diff --git a/media/libstagefright/include/OMX.h b/media/libstagefright/include/OMX.h
index 6c073f0..5b22a2f 100644
--- a/media/libstagefright/include/OMX.h
+++ b/media/libstagefright/include/OMX.h
@@ -21,168 +21,41 @@
 #include <utils/threads.h>
 #include <utils/KeyedVector.h>
 
+#include "OmxNodeOwner.h"
+
 namespace android {
 
 struct OMXMaster;
 struct OMXNodeInstance;
 
 class OMX : public BnOMX,
+            public OmxNodeOwner,
             public IBinder::DeathRecipient {
 public:
     OMX();
 
-    virtual bool livesLocally(node_id node, pid_t pid);
-
     virtual status_t listNodes(List<ComponentInfo> *list);
 
     virtual status_t allocateNode(
             const char *name, const sp<IOMXObserver> &observer,
-            sp<IBinder> *nodeBinder,
-            node_id *node);
-
-    virtual status_t freeNode(node_id node);
-
-    virtual status_t sendCommand(
-            node_id node, OMX_COMMANDTYPE cmd, OMX_S32 param);
-
-    virtual status_t getParameter(
-            node_id node, OMX_INDEXTYPE index,
-            void *params, size_t size);
-
-    virtual status_t setParameter(
-            node_id node, OMX_INDEXTYPE index,
-            const void *params, size_t size);
-
-    virtual status_t getConfig(
-            node_id node, OMX_INDEXTYPE index,
-            void *params, size_t size);
-
-    virtual status_t setConfig(
-            node_id node, OMX_INDEXTYPE index,
-            const void *params, size_t size);
-
-    virtual status_t getState(
-            node_id node, OMX_STATETYPE* state);
-
-    virtual status_t enableNativeBuffers(
-            node_id node, OMX_U32 port_index, OMX_BOOL graphic, OMX_BOOL enable);
-
-    virtual status_t getGraphicBufferUsage(
-            node_id node, OMX_U32 port_index, OMX_U32* usage);
-
-    virtual status_t storeMetaDataInBuffers(
-            node_id node, OMX_U32 port_index, OMX_BOOL enable, MetadataBufferType *type);
-
-    virtual status_t prepareForAdaptivePlayback(
-            node_id node, OMX_U32 portIndex, OMX_BOOL enable,
-            OMX_U32 max_frame_width, OMX_U32 max_frame_height);
-
-    virtual status_t configureVideoTunnelMode(
-            node_id node, OMX_U32 portIndex, OMX_BOOL tunneled,
-            OMX_U32 audioHwSync, native_handle_t **sidebandHandle);
-
-    virtual status_t useBuffer(
-            node_id node, OMX_U32 port_index, const sp<IMemory> &params,
-            buffer_id *buffer, OMX_U32 allottedSize);
-
-    virtual status_t useGraphicBuffer(
-            node_id node, OMX_U32 port_index,
-            const sp<GraphicBuffer> &graphicBuffer, buffer_id *buffer);
-
-    virtual status_t updateGraphicBufferInMeta(
-            node_id node, OMX_U32 port_index,
-            const sp<GraphicBuffer> &graphicBuffer, buffer_id buffer);
-
-    virtual status_t updateNativeHandleInMeta(
-            node_id node, OMX_U32 port_index,
-            const sp<NativeHandle> &nativeHandle, buffer_id buffer);
+            sp<IOMXNode> *omxNode);
 
     virtual status_t createInputSurface(
-            node_id node, OMX_U32 port_index, android_dataspace dataSpace,
             sp<IGraphicBufferProducer> *bufferProducer,
-            MetadataBufferType *type);
-
-    virtual status_t createPersistentInputSurface(
-            sp<IGraphicBufferProducer> *bufferProducer,
-            sp<IGraphicBufferConsumer> *bufferConsumer);
-
-    virtual status_t setInputSurface(
-            node_id node, OMX_U32 port_index,
-            const sp<IGraphicBufferConsumer> &bufferConsumer,
-            MetadataBufferType *type);
-
-    virtual status_t signalEndOfInputStream(node_id node);
-
-    virtual status_t allocateSecureBuffer(
-            node_id node, OMX_U32 port_index, size_t size,
-            buffer_id *buffer, void **buffer_data, sp<NativeHandle> *native_handle);
-
-    virtual status_t allocateBufferWithBackup(
-            node_id node, OMX_U32 port_index, const sp<IMemory> &params,
-            buffer_id *buffer, OMX_U32 allottedSize);
-
-    virtual status_t freeBuffer(
-            node_id node, OMX_U32 port_index, buffer_id buffer);
-
-    virtual status_t fillBuffer(node_id node, buffer_id buffer, int fenceFd);
-
-    virtual status_t emptyBuffer(
-            node_id node,
-            buffer_id buffer,
-            OMX_U32 range_offset, OMX_U32 range_length,
-            OMX_U32 flags, OMX_TICKS timestamp, int fenceFd);
-
-    virtual status_t getExtensionIndex(
-            node_id node,
-            const char *parameter_name,
-            OMX_INDEXTYPE *index);
-
-    virtual status_t setInternalOption(
-            node_id node,
-            OMX_U32 port_index,
-            InternalOptionType type,
-            const void *data,
-            size_t size);
+            sp<IGraphicBufferSource> *bufferSource);
 
     virtual void binderDied(const wp<IBinder> &the_late_who);
 
-    virtual bool isSecure(IOMX::node_id node);
-
-    OMX_ERRORTYPE OnEvent(
-            node_id node,
-            OMX_IN OMX_EVENTTYPE eEvent,
-            OMX_IN OMX_U32 nData1,
-            OMX_IN OMX_U32 nData2,
-            OMX_IN OMX_PTR pEventData);
-
-    OMX_ERRORTYPE OnEmptyBufferDone(
-            node_id node, buffer_id buffer, OMX_IN OMX_BUFFERHEADERTYPE *pBuffer, int fenceFd);
-
-    OMX_ERRORTYPE OnFillBufferDone(
-            node_id node, buffer_id buffer, OMX_IN OMX_BUFFERHEADERTYPE *pBuffer, int fenceFd);
-
-    void invalidateNodeID(node_id node);
+    virtual status_t freeNode(const sp<OMXNodeInstance>& instance);
 
 protected:
     virtual ~OMX();
 
 private:
-    struct CallbackDispatcherThread;
-    struct CallbackDispatcher;
-
     Mutex mLock;
     OMXMaster *mMaster;
-    size_t mNodeCounter;
 
-    KeyedVector<wp<IBinder>, OMXNodeInstance *> mLiveNodes;
-    KeyedVector<node_id, OMXNodeInstance *> mNodeIDToInstance;
-    KeyedVector<node_id, sp<CallbackDispatcher> > mDispatchers;
-
-    node_id makeNodeID_l(OMXNodeInstance *instance);
-    OMXNodeInstance *findInstance(node_id node);
-    sp<CallbackDispatcher> findDispatcher(node_id node);
-
-    void invalidateNodeID_l(node_id node);
+    KeyedVector<wp<IBinder>, sp<OMXNodeInstance> > mLiveNodes;
 
     OMX(const OMX &);
     OMX &operator=(const OMX &);
diff --git a/media/libstagefright/include/OMXClient.h b/media/libstagefright/include/OMXClient.h
new file mode 100644
index 0000000..315f19b
--- /dev/null
+++ b/media/libstagefright/include/OMXClient.h
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef OMX_CLIENT_H_
+
+#define OMX_CLIENT_H_
+
+namespace android {
+
+class IOMX;
+
+class OMXClient {
+public:
+    OMXClient();
+
+    status_t connect(bool* trebleFlag = nullptr);
+    status_t connectLegacy();
+    status_t connectTreble();
+    void disconnect();
+
+    sp<IOMX> interface() {
+        return mOMX;
+    }
+
+private:
+    sp<IOMX> mOMX;
+
+    OMXClient(const OMXClient &);
+    OMXClient &operator=(const OMXClient &);
+};
+
+}  // namespace android
+
+#endif  // OMX_CLIENT_H_
diff --git a/media/libstagefright/include/OMXNodeInstance.h b/media/libstagefright/include/OMXNodeInstance.h
index 6411267..8e08d15 100644
--- a/media/libstagefright/include/OMXNodeInstance.h
+++ b/media/libstagefright/include/OMXNodeInstance.h
@@ -18,29 +18,35 @@
 
 #define OMX_NODE_INSTANCE_H_
 
-#include "OMX.h"
+#include <atomic>
 
+#include <media/IOMX.h>
 #include <utils/RefBase.h>
-#include <utils/SortedVector.h>
 #include <utils/threads.h>
+#include <utils/KeyedVector.h>
+#include <utils/SortedVector.h>
+#include "OmxNodeOwner.h"
+
+#include <android/hidl/memory/1.0/IMemory.h>
 
 namespace android {
-
+class GraphicBuffer;
+class IOMXBufferSource;
 class IOMXObserver;
 struct OMXMaster;
-class GraphicBufferSource;
+class OMXBuffer;
+typedef hidl::memory::V1_0::IMemory IHidlMemory;
 
-struct OMXNodeInstance {
+struct OMXNodeInstance : public BnOMXNode {
     OMXNodeInstance(
-            OMX *owner, const sp<IOMXObserver> &observer, const char *name);
+            OmxNodeOwner *owner, const sp<IOMXObserver> &observer, const char *name);
 
-    void setHandle(OMX::node_id node_id, OMX_HANDLETYPE handle);
+    void setHandle(OMX_HANDLETYPE handle);
 
-    OMX *owner();
+    OMX_HANDLETYPE handle();
     sp<IOMXObserver> observer();
-    OMX::node_id nodeID();
 
-    status_t freeNode(OMXMaster *master);
+    status_t freeNode() override;
 
     status_t sendCommand(OMX_COMMANDTYPE cmd, OMX_S32 param);
     status_t getParameter(OMX_INDEXTYPE index, void *params, size_t size);
@@ -51,15 +57,10 @@
     status_t getConfig(OMX_INDEXTYPE index, void *params, size_t size);
     status_t setConfig(OMX_INDEXTYPE index, const void *params, size_t size);
 
-    status_t getState(OMX_STATETYPE* state);
-
-    status_t enableNativeBuffers(OMX_U32 portIndex, OMX_BOOL graphic, OMX_BOOL enable);
+    status_t setPortMode(OMX_U32 port_index, IOMX::PortMode mode);
 
     status_t getGraphicBufferUsage(OMX_U32 portIndex, OMX_U32* usage);
 
-    status_t storeMetaDataInBuffers(
-            OMX_U32 portIndex, OMX_BOOL enable, MetadataBufferType *type);
-
     status_t prepareForAdaptivePlayback(
             OMX_U32 portIndex, OMX_BOOL enable,
             OMX_U32 maxFrameWidth, OMX_U32 maxFrameHeight);
@@ -68,113 +69,80 @@
             OMX_U32 portIndex, OMX_BOOL tunneled,
             OMX_U32 audioHwSync, native_handle_t **sidebandHandle);
 
-    status_t useBuffer(
-            OMX_U32 portIndex, const sp<IMemory> &params,
-            OMX::buffer_id *buffer, OMX_U32 allottedSize);
-
-    status_t useGraphicBuffer(
-            OMX_U32 portIndex, const sp<GraphicBuffer> &graphicBuffer,
-            OMX::buffer_id *buffer);
-
-    status_t updateGraphicBufferInMeta(
-            OMX_U32 portIndex, const sp<GraphicBuffer> &graphicBuffer,
-            OMX::buffer_id buffer);
-
-    status_t updateNativeHandleInMeta(
-            OMX_U32 portIndex, const sp<NativeHandle> &nativeHandle,
-            OMX::buffer_id buffer);
-
-    status_t createInputSurface(
-            OMX_U32 portIndex, android_dataspace dataSpace,
-            sp<IGraphicBufferProducer> *bufferProducer,
-            MetadataBufferType *type);
-
-    static status_t createPersistentInputSurface(
-            sp<IGraphicBufferProducer> *bufferProducer,
-            sp<IGraphicBufferConsumer> *bufferConsumer);
-
     status_t setInputSurface(
-            OMX_U32 portIndex, const sp<IGraphicBufferConsumer> &bufferConsumer,
-            MetadataBufferType *type);
-
-    status_t signalEndOfInputStream();
-
-    void signalEvent(OMX_EVENTTYPE event, OMX_U32 arg1, OMX_U32 arg2);
+            const sp<IOMXBufferSource> &bufferSource);
 
     status_t allocateSecureBuffer(
-            OMX_U32 portIndex, size_t size, OMX::buffer_id *buffer,
+            OMX_U32 portIndex, size_t size, IOMX::buffer_id *buffer,
             void **buffer_data, sp<NativeHandle> *native_handle);
 
-    status_t allocateBufferWithBackup(
-            OMX_U32 portIndex, const sp<IMemory> &params,
-            OMX::buffer_id *buffer, OMX_U32 allottedSize);
+    status_t useBuffer(
+            OMX_U32 portIndex, const OMXBuffer &omxBuf, buffer_id *buffer);
 
-    status_t freeBuffer(OMX_U32 portIndex, OMX::buffer_id buffer);
+    status_t freeBuffer(
+            OMX_U32 portIndex, buffer_id buffer);
 
-    status_t fillBuffer(OMX::buffer_id buffer, int fenceFd);
+    status_t fillBuffer(
+            buffer_id buffer, const OMXBuffer &omxBuf, int fenceFd = -1);
 
     status_t emptyBuffer(
-            OMX::buffer_id buffer,
-            OMX_U32 rangeOffset, OMX_U32 rangeLength,
-            OMX_U32 flags, OMX_TICKS timestamp, int fenceFd);
-
-    status_t emptyGraphicBuffer(
-            OMX_BUFFERHEADERTYPE *header, const sp<GraphicBuffer> &buffer,
-            OMX_U32 flags, OMX_TICKS timestamp, int fenceFd);
+            buffer_id buffer, const OMXBuffer &omxBuf,
+            OMX_U32 flags, OMX_TICKS timestamp, int fenceFd = -1);
 
     status_t getExtensionIndex(
             const char *parameterName, OMX_INDEXTYPE *index);
 
-    status_t setInternalOption(
-            OMX_U32 portIndex,
-            IOMX::InternalOptionType type,
-            const void *data,
-            size_t size);
+    status_t setQuirks(OMX_U32 quirks);
 
     bool isSecure() const {
         return mIsSecure;
     }
 
+    status_t dispatchMessage(const omx_message &msg) override;
+
     // handles messages and removes them from the list
     void onMessages(std::list<omx_message> &messages);
-    void onMessage(const omx_message &msg);
-    void onObserverDied(OMXMaster *master);
-    void onGetHandleFailed();
+    void onObserverDied();
     void onEvent(OMX_EVENTTYPE event, OMX_U32 arg1, OMX_U32 arg2);
 
     static OMX_CALLBACKTYPE kCallbacks;
 
 private:
+    struct CallbackDispatcherThread;
+    struct CallbackDispatcher;
+
     Mutex mLock;
 
-    OMX *mOwner;
-    OMX::node_id mNodeID;
+    OmxNodeOwner *mOwner;
     OMX_HANDLETYPE mHandle;
     sp<IOMXObserver> mObserver;
-    bool mDying;
+    sp<CallbackDispatcher> mDispatcher;
+    std::atomic_bool mDying;
     bool mSailed;  // configuration is set (no more meta-mode changes)
     bool mQueriedProhibitedExtensions;
     SortedVector<OMX_INDEXTYPE> mProhibitedExtensions;
     bool mIsSecure;
+    uint32_t mQuirks;
 
-    // Lock only covers mGraphicBufferSource.  We can't always use mLock
-    // because of rare instances where we'd end up locking it recursively.
-    Mutex mGraphicBufferSourceLock;
-    // Access this through getGraphicBufferSource().
-    sp<GraphicBufferSource> mGraphicBufferSource;
-
+    // Lock only covers mOMXBufferSource and mOMXOutputListener.  We can't always
+    // use mLock because of rare instances where we'd end up locking it recursively.
+    Mutex mOMXBufferSourceLock;
+    // Access these through getBufferSource().
+    sp<IOMXBufferSource> mOMXBufferSource;
 
     struct ActiveBuffer {
         OMX_U32 mPortIndex;
-        OMX::buffer_id mID;
+        IOMX::buffer_id mID;
     };
     Vector<ActiveBuffer> mActiveBuffers;
     // for buffer ptr to buffer id translation
     Mutex mBufferIDLock;
     uint32_t mBufferIDCount;
-    KeyedVector<OMX::buffer_id, OMX_BUFFERHEADERTYPE *> mBufferIDToBufferHeader;
-    KeyedVector<OMX_BUFFERHEADERTYPE *, OMX::buffer_id> mBufferHeaderToBufferID;
+    KeyedVector<IOMX::buffer_id, OMX_BUFFERHEADERTYPE *> mBufferIDToBufferHeader;
+    KeyedVector<OMX_BUFFERHEADERTYPE *, IOMX::buffer_id> mBufferHeaderToBufferID;
 
+    bool mLegacyAdaptiveExperiment;
+    IOMX::PortMode mPortMode[2];
     // metadata and secure buffer type tracking
     MetadataBufferType mMetadataType[2];
     enum SecureBufferType {
@@ -184,6 +152,14 @@
     };
     SecureBufferType mSecureBufferType[2];
 
+    // Following are OMX parameters managed by us (instead of the component)
+    // OMX_IndexParamMaxFrameDurationForBitrateControl
+    KeyedVector<int64_t, int64_t> mOriginalTimeUs;
+    bool mRestorePtsFailed;
+    int64_t mMaxTimestampGapUs;
+    int64_t mPrevOriginalTimeUs;
+    int64_t mPrevModifiedTimeUs;
+
     // For debug support
     char *mName;
     int DEBUG;
@@ -198,21 +174,51 @@
 
     ~OMXNodeInstance();
 
-    void addActiveBuffer(OMX_U32 portIndex, OMX::buffer_id id);
-    void removeActiveBuffer(OMX_U32 portIndex, OMX::buffer_id id);
+    void addActiveBuffer(OMX_U32 portIndex, IOMX::buffer_id id);
+    void removeActiveBuffer(OMX_U32 portIndex, IOMX::buffer_id id);
     void freeActiveBuffers();
 
     // For buffer id management
-    OMX::buffer_id makeBufferID(OMX_BUFFERHEADERTYPE *bufferHeader);
-    OMX_BUFFERHEADERTYPE *findBufferHeader(OMX::buffer_id buffer, OMX_U32 portIndex);
-    OMX::buffer_id findBufferID(OMX_BUFFERHEADERTYPE *bufferHeader);
-    void invalidateBufferID(OMX::buffer_id buffer);
+    IOMX::buffer_id makeBufferID(OMX_BUFFERHEADERTYPE *bufferHeader);
+    OMX_BUFFERHEADERTYPE *findBufferHeader(IOMX::buffer_id buffer, OMX_U32 portIndex);
+    IOMX::buffer_id findBufferID(OMX_BUFFERHEADERTYPE *bufferHeader);
+    void invalidateBufferID(IOMX::buffer_id buffer);
 
     bool isProhibitedIndex_l(OMX_INDEXTYPE index);
 
+    status_t useBuffer_l(
+            OMX_U32 portIndex, const sp<IMemory> &params,
+            const sp<IHidlMemory> &hParams, IOMX::buffer_id *buffer);
+
+    status_t useGraphicBuffer_l(
+            OMX_U32 portIndex, const sp<GraphicBuffer> &graphicBuffer,
+            IOMX::buffer_id *buffer);
+
+    status_t useGraphicBufferWithMetadata_l(
+            OMX_U32 portIndex, const sp<GraphicBuffer> &graphicBuffer,
+            IOMX::buffer_id *buffer);
+
     status_t useGraphicBuffer2_l(
             OMX_U32 portIndex, const sp<GraphicBuffer> &graphicBuffer,
-            OMX::buffer_id *buffer);
+            IOMX::buffer_id *buffer);
+
+    status_t emptyBuffer_l(
+            IOMX::buffer_id buffer,
+            OMX_U32 rangeOffset, OMX_U32 rangeLength,
+            OMX_U32 flags, OMX_TICKS timestamp, int fenceFd);
+
+    status_t emptyGraphicBuffer_l(
+            IOMX::buffer_id buffer, const sp<GraphicBuffer> &graphicBuffer,
+            OMX_U32 flags, OMX_TICKS timestamp, int fenceFd);
+
+    status_t emptyNativeHandleBuffer_l(
+            IOMX::buffer_id buffer, const sp<NativeHandle> &nativeHandle,
+            OMX_U32 flags, OMX_TICKS timestamp, int fenceFd);
+
+    status_t emptyBuffer_l(
+            OMX_BUFFERHEADERTYPE *header,
+            OMX_U32 flags, OMX_TICKS timestamp, intptr_t debugAddr, int fenceFd);
+
     static OMX_ERRORTYPE OnEvent(
             OMX_IN OMX_HANDLETYPE hComponent,
             OMX_IN OMX_PTR pAppData,
@@ -231,6 +237,9 @@
             OMX_IN OMX_PTR pAppData,
             OMX_IN OMX_BUFFERHEADERTYPE *pBuffer);
 
+    status_t enableNativeBuffers_l(
+            OMX_U32 portIndex, OMX_BOOL graphic, OMX_BOOL enable);
+
     status_t storeMetaDataInBuffers_l(
             OMX_U32 portIndex, OMX_BOOL enable, MetadataBufferType *type);
 
@@ -243,10 +252,6 @@
     int retrieveFenceFromMeta_l(
             OMX_BUFFERHEADERTYPE *header, OMX_U32 portIndex);
 
-    status_t emptyBuffer_l(
-            OMX_BUFFERHEADERTYPE *header,
-            OMX_U32 flags, OMX_TICKS timestamp, intptr_t debugAddr, int fenceFd);
-
     // Updates the graphic buffer handle in the metadata buffer for |buffer| and |header| to
     // |graphicBuffer|'s handle. If |updateCodecBuffer| is true, the update will happen in
     // the actual codec buffer (use this if not using emptyBuffer (with no _l) later to
@@ -254,18 +259,27 @@
     // buffer.)
     status_t updateGraphicBufferInMeta_l(
             OMX_U32 portIndex, const sp<GraphicBuffer> &graphicBuffer,
-            OMX::buffer_id buffer, OMX_BUFFERHEADERTYPE *header, bool updateCodecBuffer);
+            IOMX::buffer_id buffer, OMX_BUFFERHEADERTYPE *header);
 
-    status_t createGraphicBufferSource(
-            OMX_U32 portIndex, const sp<IGraphicBufferConsumer> &consumer /* nullable */,
-            MetadataBufferType *type);
-    sp<GraphicBufferSource> getGraphicBufferSource();
-    void setGraphicBufferSource(const sp<GraphicBufferSource> &bufferSource);
+    status_t updateNativeHandleInMeta_l(
+            OMX_U32 portIndex, const sp<NativeHandle> &nativeHandle,
+            IOMX::buffer_id buffer, OMX_BUFFERHEADERTYPE *header);
+
+    sp<IOMXBufferSource> getBufferSource();
+    void setBufferSource(const sp<IOMXBufferSource> &bufferSource);
+    // Called when omx_message::FILL_BUFFER_DONE is received. (Currently the
+    // buffer source will fix timestamp in the header if needed.)
+    void codecBufferFilled(omx_message &msg);
 
     // Handles |msg|, and may modify it. Returns true iff completely handled it and
     // |msg| does not need to be sent to the event listener.
     bool handleMessage(omx_message &msg);
 
+    bool handleDataSpaceChanged(omx_message &msg);
+
+    status_t setMaxPtsGapUs(const void *params, size_t size);
+    int64_t getCodecTimestamp(OMX_TICKS timestamp);
+
     OMXNodeInstance(const OMXNodeInstance &);
     OMXNodeInstance &operator=(const OMXNodeInstance &);
 };
diff --git a/media/libstagefright/include/OmxNodeOwner.h b/media/libstagefright/include/OmxNodeOwner.h
new file mode 100644
index 0000000..64ec7f7
--- /dev/null
+++ b/media/libstagefright/include/OmxNodeOwner.h
@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef OMX_NODE_OWNER_H_
+
+#define OMX_NODE_OWNER_H_
+
+namespace android {
+
+struct OMXNodeInstance;
+
+/**
+ * This struct is needed to separate OMX from OMXNodeInstance.
+ *
+ * TODO: This might not be needed after Treble transition is complete.
+ */
+struct OmxNodeOwner {
+    virtual status_t freeNode(const sp<OMXNodeInstance> &instance) = 0;
+    virtual ~OmxNodeOwner() {}
+};
+
+}
+
+#endif  // OMX_NODE_OWNER_H_
diff --git a/media/libstagefright/include/PersistentSurface.h b/media/libstagefright/include/PersistentSurface.h
new file mode 100644
index 0000000..d8b75a2
--- /dev/null
+++ b/media/libstagefright/include/PersistentSurface.h
@@ -0,0 +1,68 @@
+/*
+ * Copyright 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef PERSISTENT_SURFACE_H_
+
+#define PERSISTENT_SURFACE_H_
+
+#include <gui/IGraphicBufferProducer.h>
+#include <android/IGraphicBufferSource.h>
+#include <media/stagefright/foundation/ABase.h>
+#include <binder/Parcel.h>
+
+namespace android {
+
+struct PersistentSurface : public RefBase {
+    PersistentSurface() {}
+
+    PersistentSurface(
+            const sp<IGraphicBufferProducer>& bufferProducer,
+            const sp<IGraphicBufferSource>& bufferSource) :
+        mBufferProducer(bufferProducer),
+        mBufferSource(bufferSource) { }
+
+    sp<IGraphicBufferProducer> getBufferProducer() const {
+        return mBufferProducer;
+    }
+
+    sp<IGraphicBufferSource> getBufferSource() const {
+        return mBufferSource;
+    }
+
+    status_t writeToParcel(Parcel *parcel) const {
+        parcel->writeStrongBinder(IInterface::asBinder(mBufferProducer));
+        parcel->writeStrongBinder(IInterface::asBinder(mBufferSource));
+        return NO_ERROR;
+    }
+
+    status_t readFromParcel(const Parcel *parcel) {
+        mBufferProducer = interface_cast<IGraphicBufferProducer>(
+                parcel->readStrongBinder());
+        mBufferSource = interface_cast<IGraphicBufferSource>(
+                parcel->readStrongBinder());
+        return NO_ERROR;
+    }
+
+private:
+    sp<IGraphicBufferProducer> mBufferProducer;
+    sp<IGraphicBufferSource> mBufferSource;
+
+    DISALLOW_EVIL_CONSTRUCTORS(PersistentSurface);
+};
+
+}  // namespace android
+
+#endif  // PERSISTENT_SURFACE_H_
diff --git a/include/media/stagefright/ProcessInfo.h b/media/libstagefright/include/ProcessInfo.h
similarity index 100%
rename from include/media/stagefright/ProcessInfo.h
rename to media/libstagefright/include/ProcessInfo.h
diff --git a/include/media/stagefright/ProcessInfoInterface.h b/media/libstagefright/include/ProcessInfoInterface.h
similarity index 100%
rename from include/media/stagefright/ProcessInfoInterface.h
rename to media/libstagefright/include/ProcessInfoInterface.h
diff --git a/include/media/stagefright/RenderScriptWrapper.h b/media/libstagefright/include/RenderScriptWrapper.h
similarity index 100%
rename from include/media/stagefright/RenderScriptWrapper.h
rename to media/libstagefright/include/RenderScriptWrapper.h
diff --git a/media/libstagefright/include/SecureBuffer.h b/media/libstagefright/include/SecureBuffer.h
new file mode 100644
index 0000000..cf7933a
--- /dev/null
+++ b/media/libstagefright/include/SecureBuffer.h
@@ -0,0 +1,54 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef SECURE_BUFFER_H_
+
+#define SECURE_BUFFER_H_
+
+#include <media/ICrypto.h>
+#include <media/MediaCodecBuffer.h>
+
+namespace android {
+
+class NativeHandle;
+
+/**
+ * Secure MediaCodecBuffer implementation.
+ *
+ * For classes outside of MediaCodec, this buffer is an opaque buffer only with
+ * the size information. For decryption, it exposes underlying handle/pointer
+ * and its type, which can be fed to ICrypto::decrypt().
+ */
+class SecureBuffer : public MediaCodecBuffer {
+public:
+    SecureBuffer(const sp<AMessage> &format, const void *ptr, size_t size);
+    SecureBuffer(const sp<AMessage> &format, const sp<NativeHandle> &handle, size_t size);
+
+    virtual ~SecureBuffer() = default;
+
+    void *getDestinationPointer();
+    ICrypto::DestinationType getDestinationType();
+
+private:
+    SecureBuffer() = delete;
+
+    const void *mPointer;
+    const sp<NativeHandle> mHandle;
+};
+
+}  // namespace android
+
+#endif  // SECURE_BUFFER_H_
diff --git a/media/libstagefright/include/SharedMemoryBuffer.h b/media/libstagefright/include/SharedMemoryBuffer.h
new file mode 100644
index 0000000..92df68a
--- /dev/null
+++ b/media/libstagefright/include/SharedMemoryBuffer.h
@@ -0,0 +1,49 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef SHARED_MEMORY_BUFFER_H_
+
+#define SHARED_MEMORY_BUFFER_H_
+
+#include <media/MediaCodecBuffer.h>
+#include <android/hidl/memory/1.0/IMemory.h>
+
+namespace android {
+
+struct AMessage;
+class IMemory;
+
+/**
+ * MediaCodecBuffer implementation based on IMemory.
+ */
+class SharedMemoryBuffer : public MediaCodecBuffer {
+public:
+    typedef ::android::hidl::memory::V1_0::IMemory TMemory;
+    SharedMemoryBuffer(const sp<AMessage> &format, const sp<IMemory> &mem);
+    SharedMemoryBuffer(const sp<AMessage> &format, const sp<TMemory> &mem);
+
+    virtual ~SharedMemoryBuffer() = default;
+
+private:
+    SharedMemoryBuffer() = delete;
+
+    const sp<IMemory> mMemory;
+    const sp<TMemory> mTMemory;
+};
+
+}  // namespace android
+
+#endif  // SHARED_MEMORY_BUFFER_H_
diff --git a/include/media/stagefright/SimpleDecodingSource.h b/media/libstagefright/include/SimpleDecodingSource.h
similarity index 100%
rename from include/media/stagefright/SimpleDecodingSource.h
rename to media/libstagefright/include/SimpleDecodingSource.h
diff --git a/media/libstagefright/include/SimpleSoftOMXComponent.h b/media/libstagefright/include/SimpleSoftOMXComponent.h
index 591b38e..1d1f2bd 100644
--- a/media/libstagefright/include/SimpleSoftOMXComponent.h
+++ b/media/libstagefright/include/SimpleSoftOMXComponent.h
@@ -29,6 +29,11 @@
 
 struct ALooper;
 
+struct CodecProfileLevel {
+    OMX_U32 mProfile;
+    OMX_U32 mLevel;
+};
+
 struct SimpleSoftOMXComponent : public SoftOMXComponent {
     SimpleSoftOMXComponent(
             const char *name,
diff --git a/media/libstagefright/include/SkipCutBuffer.h b/media/libstagefright/include/SkipCutBuffer.h
new file mode 100644
index 0000000..0fb5690
--- /dev/null
+++ b/media/libstagefright/include/SkipCutBuffer.h
@@ -0,0 +1,67 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef SKIP_CUT_BUFFER_H_
+
+#define SKIP_CUT_BUFFER_H_
+
+#include <media/MediaCodecBuffer.h>
+#include <media/stagefright/MediaBuffer.h>
+#include <media/stagefright/foundation/ABuffer.h>
+
+namespace android {
+
+/**
+ * utility class to cut the start and end off a stream of data in MediaBuffers
+ *
+ */
+class SkipCutBuffer: public RefBase {
+ public:
+    // 'skip' is the number of frames to skip from the beginning
+    // 'cut' is the number of frames to cut from the end
+    // 'num16BitChannels' is the number of channels, which are assumed to be 16 bit wide each
+    SkipCutBuffer(size_t skip, size_t cut, size_t num16Channels);
+
+    // Submit one MediaBuffer for skipping and cutting. This may consume all or
+    // some of the data in the buffer, or it may add data to it.
+    // After this, the caller should continue processing the buffer as usual.
+    void submit(MediaBuffer *buffer);
+    void submit(const sp<ABuffer>& buffer);    // same as above, but with an ABuffer
+    void submit(const sp<MediaCodecBuffer>& buffer);    // same as above, but with an ABuffer
+    void clear();
+    size_t size(); // how many bytes are currently stored in the buffer
+
+ protected:
+    virtual ~SkipCutBuffer();
+
+ private:
+    void write(const char *src, size_t num);
+    size_t read(char *dst, size_t num);
+    template <typename T>
+    void submitInternal(const sp<T>& buffer);
+    int32_t mSkip;
+    int32_t mFrontPadding;
+    int32_t mBackPadding;
+    int32_t mWriteHead;
+    int32_t mReadHead;
+    int32_t mCapacity;
+    char* mCutBuffer;
+    DISALLOW_EVIL_CONSTRUCTORS(SkipCutBuffer);
+};
+
+}  // namespace android
+
+#endif  // OMX_CODEC_H_
diff --git a/include/media/stagefright/StagefrightMediaScanner.h b/media/libstagefright/include/StagefrightMediaScanner.h
similarity index 100%
rename from include/media/stagefright/StagefrightMediaScanner.h
rename to media/libstagefright/include/StagefrightMediaScanner.h
diff --git a/media/libstagefright/include/SurfaceMediaSource.h b/media/libstagefright/include/SurfaceMediaSource.h
new file mode 100644
index 0000000..ae19a75
--- /dev/null
+++ b/media/libstagefright/include/SurfaceMediaSource.h
@@ -0,0 +1,248 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_GUI_SURFACEMEDIASOURCE_H
+#define ANDROID_GUI_SURFACEMEDIASOURCE_H
+
+#include <gui/IGraphicBufferProducer.h>
+#include <gui/BufferQueue.h>
+
+#include <utils/threads.h>
+#include <utils/Vector.h>
+#include <media/stagefright/MediaSource.h>
+#include <media/stagefright/MediaBuffer.h>
+
+#include <MetadataBufferType.h>
+
+#include "foundation/ABase.h"
+
+namespace android {
+// ----------------------------------------------------------------------------
+
+class String8;
+class GraphicBuffer;
+
+// ASSUMPTIONS
+// 1. SurfaceMediaSource is initialized with width*height which
+// can never change.  However, deqeueue buffer does not currently
+// enforce this as in BufferQueue, dequeue can be used by Surface
+// which can modify the default width and heght.  Also neither the width
+// nor height can be 0.
+// 2. setSynchronousMode is never used (basically no one should call
+// setSynchronousMode(false)
+// 3. setCrop, setTransform, setScalingMode should never be used
+// 4. queueBuffer returns a filled buffer to the SurfaceMediaSource. In addition, a
+// timestamp must be provided for the buffer. The timestamp is in
+// nanoseconds, and must be monotonically increasing. Its other semantics
+// (zero point, etc) are client-dependent and should be documented by the
+// client.
+// 5. Once disconnected, SurfaceMediaSource can be reused (can not
+// connect again)
+// 6. Stop is a hard stop, the last few frames held by the encoder
+// may be dropped.  It is possible to wait for the buffers to be
+// returned (but not implemented)
+
+#define DEBUG_PENDING_BUFFERS   0
+
+class SurfaceMediaSource : public MediaSource,
+                                public MediaBufferObserver,
+                                protected ConsumerListener {
+public:
+    enum { MIN_UNDEQUEUED_BUFFERS = 4};
+
+    struct FrameAvailableListener : public virtual RefBase {
+        // onFrameAvailable() is called from queueBuffer() is the FIFO is
+        // empty. You can use SurfaceMediaSource::getQueuedCount() to
+        // figure out if there are more frames waiting.
+        // This is called without any lock held can be called concurrently by
+        // multiple threads.
+        virtual void onFrameAvailable() = 0;
+    };
+
+    SurfaceMediaSource(uint32_t bufferWidth, uint32_t bufferHeight);
+
+    virtual ~SurfaceMediaSource();
+
+    // For the MediaSource interface for use by StageFrightRecorder:
+    virtual status_t start(MetaData *params = NULL);
+    virtual status_t stop();
+    virtual status_t read(MediaBuffer **buffer,
+            const ReadOptions *options = NULL);
+    virtual sp<MetaData> getFormat();
+
+    // Get / Set the frame rate used for encoding. Default fps = 30
+    status_t setFrameRate(int32_t fps) ;
+    int32_t getFrameRate( ) const;
+
+    // The call for the StageFrightRecorder to tell us that
+    // it is done using the MediaBuffer data so that its state
+    // can be set to FREE for dequeuing
+    virtual void signalBufferReturned(MediaBuffer* buffer);
+    // end of MediaSource interface
+
+    // getTimestamp retrieves the timestamp associated with the image
+    // set by the most recent call to read()
+    //
+    // The timestamp is in nanoseconds, and is monotonically increasing. Its
+    // other semantics (zero point, etc) are source-dependent and should be
+    // documented by the source.
+    int64_t getTimestamp();
+
+    // setFrameAvailableListener sets the listener object that will be notified
+    // when a new frame becomes available.
+    void setFrameAvailableListener(const sp<FrameAvailableListener>& listener);
+
+    // dump our state in a String
+    void dump(String8& result) const;
+    void dump(String8& result, const char* prefix, char* buffer,
+                                                    size_t SIZE) const;
+
+    // metaDataStoredInVideoBuffers tells the encoder what kind of metadata
+    // is passed through the buffers. Currently, it is set to ANWBuffer
+    MetadataBufferType metaDataStoredInVideoBuffers() const;
+
+    sp<IGraphicBufferProducer> getProducer() const { return mProducer; }
+
+    // To be called before start()
+    status_t setMaxAcquiredBufferCount(size_t count);
+
+    // To be called before start()
+    status_t setUseAbsoluteTimestamps();
+
+protected:
+
+    // Implementation of the BufferQueue::ConsumerListener interface.  These
+    // calls are used to notify the Surface of asynchronous events in the
+    // BufferQueue.
+    virtual void onFrameAvailable(const BufferItem& item);
+
+    // Used as a hook to BufferQueue::disconnect()
+    // This is called by the client side when it is done
+    // TODO: Currently, this also sets mStopped to true which
+    // is needed for unblocking the encoder which might be
+    // waiting to read more frames. So if on the client side,
+    // the same thread supplies the frames and also calls stop
+    // on the encoder, the client has to call disconnect before
+    // it calls stop.
+    // In the case of the camera,
+    // that need not be required since the thread supplying the
+    // frames is separate than the one calling stop.
+    virtual void onBuffersReleased();
+
+    // SurfaceMediaSource can't handle sideband streams, so this is not expected
+    // to ever be called. Does nothing.
+    virtual void onSidebandStreamChanged();
+
+    static bool isExternalFormat(uint32_t format);
+
+private:
+    // A BufferQueue, represented by these interfaces, is the exchange point
+    // between the producer and this consumer
+    sp<IGraphicBufferProducer> mProducer;
+    sp<IGraphicBufferConsumer> mConsumer;
+
+    struct SlotData {
+        sp<GraphicBuffer> mGraphicBuffer;
+        uint64_t mFrameNumber;
+    };
+
+    // mSlots caches GraphicBuffers and frameNumbers from the buffer queue
+    SlotData mSlots[BufferQueue::NUM_BUFFER_SLOTS];
+
+    // The permenent width and height of SMS buffers
+    int mWidth;
+    int mHeight;
+
+    // mCurrentSlot is the buffer slot index of the buffer that is currently
+    // being used by buffer consumer
+    // (e.g. StageFrightRecorder in the case of SurfaceMediaSource or GLTexture
+    // in the case of Surface).
+    // It is initialized to INVALID_BUFFER_SLOT,
+    // indicating that no buffer slot is currently bound to the texture. Note,
+    // however, that a value of INVALID_BUFFER_SLOT does not necessarily mean
+    // that no buffer is bound to the texture. A call to setBufferCount will
+    // reset mCurrentTexture to INVALID_BUFFER_SLOT.
+    int mCurrentSlot;
+
+    // mCurrentBuffers is a list of the graphic buffers that are being used by
+    // buffer consumer (i.e. the video encoder). It's possible that these
+    // buffers are not associated with any buffer slots, so we must track them
+    // separately.  Buffers are added to this list in read, and removed from
+    // this list in signalBufferReturned
+    Vector<sp<GraphicBuffer> > mCurrentBuffers;
+
+    size_t mNumPendingBuffers;
+
+#if DEBUG_PENDING_BUFFERS
+    Vector<MediaBuffer *> mPendingBuffers;
+#endif
+
+    // mCurrentTimestamp is the timestamp for the current texture. It
+    // gets set to mLastQueuedTimestamp each time updateTexImage is called.
+    int64_t mCurrentTimestamp;
+
+    // mFrameAvailableListener is the listener object that will be called when a
+    // new frame becomes available. If it is not NULL it will be called from
+    // queueBuffer.
+    sp<FrameAvailableListener> mFrameAvailableListener;
+
+    // mMutex is the mutex used to prevent concurrent access to the member
+    // variables of SurfaceMediaSource objects. It must be locked whenever the
+    // member variables are accessed.
+    mutable Mutex mMutex;
+
+    ////////////////////////// For MediaSource
+    // Set to a default of 30 fps if not specified by the client side
+    int32_t mFrameRate;
+
+    // mStarted is a flag to check if the recording is going on
+    bool mStarted;
+
+    // mNumFramesReceived indicates the number of frames recieved from
+    // the client side
+    int mNumFramesReceived;
+    // mNumFramesEncoded indicates the number of frames passed on to the
+    // encoder
+    int mNumFramesEncoded;
+
+    // mFirstFrameTimestamp is the timestamp of the first received frame.
+    // It is used to offset the output timestamps so recording starts at time 0.
+    int64_t mFirstFrameTimestamp;
+    // mStartTimeNs is the start time passed into the source at start, used to
+    // offset timestamps.
+    int64_t mStartTimeNs;
+
+    size_t mMaxAcquiredBufferCount;
+
+    bool mUseAbsoluteTimestamps;
+
+    // mFrameAvailableCondition condition used to indicate whether there
+    // is a frame available for dequeuing
+    Condition mFrameAvailableCondition;
+
+    Condition mMediaBuffersAvailableCondition;
+
+    // Allocate and return a new MediaBuffer and pass the ANW buffer as metadata into it.
+    void passMetadataBuffer_l(MediaBuffer **buffer, ANativeWindowBuffer *bufferHandle) const;
+
+    // Avoid copying and equating and default constructor
+    DISALLOW_EVIL_CONSTRUCTORS(SurfaceMediaSource);
+};
+
+// ----------------------------------------------------------------------------
+}; // namespace android
+
+#endif // ANDROID_GUI_SURFACEMEDIASOURCE_H
diff --git a/media/libstagefright/include/SurfaceUtils.h b/media/libstagefright/include/SurfaceUtils.h
new file mode 100644
index 0000000..a7747c7
--- /dev/null
+++ b/media/libstagefright/include/SurfaceUtils.h
@@ -0,0 +1,41 @@
+/*
+ * Copyright 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef SURFACE_UTILS_H_
+
+#define SURFACE_UTILS_H_
+
+#include <utils/Errors.h>
+
+struct ANativeWindow;
+
+namespace android {
+
+/**
+ * Configures |nativeWindow| for given |width|x|height|, pixel |format|, |rotation| and |usage|.
+ * If |reconnect| is true, reconnects to the native window before hand.
+ * @return first error encountered, or NO_ERROR on success.
+ */
+status_t setNativeWindowSizeFormatAndUsage(
+        ANativeWindow *nativeWindow /* nonnull */,
+        int width, int height, int format, int rotation, int usage, bool reconnect);
+status_t pushBlankBuffersToNativeWindow(ANativeWindow *nativeWindow /* nonnull */);
+status_t nativeWindowConnect(ANativeWindow *surface, const char *reason);
+status_t nativeWindowDisconnect(ANativeWindow *surface, const char *reason);
+
+} // namespace android
+
+#endif  // SURFACE_UTILS_H_
diff --git a/media/libstagefright/include/Utils.h b/media/libstagefright/include/Utils.h
new file mode 100644
index 0000000..88a416a
--- /dev/null
+++ b/media/libstagefright/include/Utils.h
@@ -0,0 +1,101 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef UTILS_H_
+
+#define UTILS_H_
+
+#include <media/stagefright/foundation/AString.h>
+#include <stdint.h>
+#include <utils/Errors.h>
+#include <utils/RefBase.h>
+#include <system/audio.h>
+#include <media/BufferingSettings.h>
+#include <media/MediaPlayerInterface.h>
+
+namespace android {
+
+#define FOURCC(c1, c2, c3, c4) \
+    ((c1) << 24 | (c2) << 16 | (c3) << 8 | (c4))
+
+uint16_t U16_AT(const uint8_t *ptr);
+uint32_t U32_AT(const uint8_t *ptr);
+uint64_t U64_AT(const uint8_t *ptr);
+
+uint16_t U16LE_AT(const uint8_t *ptr);
+uint32_t U32LE_AT(const uint8_t *ptr);
+uint64_t U64LE_AT(const uint8_t *ptr);
+
+uint64_t ntoh64(uint64_t x);
+uint64_t hton64(uint64_t x);
+
+class MetaData;
+struct AMessage;
+status_t convertMetaDataToMessage(
+        const sp<MetaData> &meta, sp<AMessage> *format);
+void convertMessageToMetaData(
+        const sp<AMessage> &format, sp<MetaData> &meta);
+
+// Returns a pointer to the next NAL start code in buffer of size |length| starting at |data|, or
+// a pointer to the end of the buffer if the start code is not found.
+// TODO: combine this with avc_utils::getNextNALUnit
+const uint8_t *findNextNalStartCode(const uint8_t *data, size_t length);
+
+AString MakeUserAgent();
+
+// Convert a MIME type to a AudioSystem::audio_format
+status_t mapMimeToAudioFormat(audio_format_t& format, const char* mime);
+
+// Convert a aac profile to a AudioSystem::audio_format
+void mapAACProfileToAudioFormat(audio_format_t& format, uint64_t eAacProfile);
+
+// Send information from MetaData to the HAL via AudioSink
+status_t sendMetaDataToHal(sp<MediaPlayerBase::AudioSink>& sink, const sp<MetaData>& meta);
+
+// Check whether the stream defined by meta can be offloaded to hardware
+bool canOffloadStream(const sp<MetaData>& meta, bool hasVideo,
+                      bool isStreaming, audio_stream_type_t streamType);
+
+AString uriDebugString(const AString &uri, bool incognito = false);
+
+struct HLSTime {
+    int32_t mSeq;
+    int64_t mTimeUs;
+    sp<AMessage> mMeta;
+
+    explicit HLSTime(const sp<AMessage> &meta = NULL);
+    int64_t getSegmentTimeUs() const;
+};
+
+bool operator <(const HLSTime &t0, const HLSTime &t1);
+
+// read and write various object to/from AMessage
+
+void writeToAMessage(const sp<AMessage> &msg, const AudioPlaybackRate &rate);
+void readFromAMessage(const sp<AMessage> &msg, AudioPlaybackRate *rate /* nonnull */);
+
+void writeToAMessage(const sp<AMessage> &msg, const AVSyncSettings &sync, float videoFpsHint);
+void readFromAMessage(
+        const sp<AMessage> &msg, AVSyncSettings *sync /* nonnull */, float *videoFps /* nonnull */);
+
+void writeToAMessage(const sp<AMessage> &msg, const BufferingSettings &buffering);
+void readFromAMessage(const sp<AMessage> &msg, BufferingSettings *buffering /* nonnull */);
+
+AString nameForFd(int fd);
+
+}  // namespace android
+
+#endif  // UTILS_H_
diff --git a/include/media/stagefright/VideoFrameScheduler.h b/media/libstagefright/include/VideoFrameScheduler.h
similarity index 100%
rename from include/media/stagefright/VideoFrameScheduler.h
rename to media/libstagefright/include/VideoFrameScheduler.h
diff --git a/media/libstagefright/include/WVMExtractor.h b/media/libstagefright/include/WVMExtractor.h
deleted file mode 100644
index 65cb99a..0000000
--- a/media/libstagefright/include/WVMExtractor.h
+++ /dev/null
@@ -1,102 +0,0 @@
-/*
- * Copyright (C) 2010 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef WVM_EXTRACTOR_H_
-
-#define WVM_EXTRACTOR_H_
-
-#include <media/stagefright/MediaExtractor.h>
-#include <utils/Errors.h>
-
-namespace android {
-
-struct AMessage;
-class String8;
-class DataSource;
-
-class WVMLoadableExtractor : public MediaExtractor {
-public:
-    WVMLoadableExtractor() {}
-    virtual ~WVMLoadableExtractor() {}
-
-    virtual int64_t getCachedDurationUs(status_t *finalStatus) = 0;
-    virtual status_t getError() = 0;
-    virtual status_t getEstimatedBandwidthKbps(int32_t *kbps) = 0;
-    virtual void setAdaptiveStreamingMode(bool adaptive) = 0;
-    virtual void setCryptoPluginMode(bool cryptoPluginMode) = 0;
-    virtual void setError(status_t err) = 0;
-    virtual void setUID(uid_t uid) = 0;
-};
-
-class WVMExtractor : public MediaExtractor {
-public:
-    explicit WVMExtractor(const sp<DataSource> &source);
-
-    virtual size_t countTracks();
-    virtual sp<IMediaSource> getTrack(size_t index);
-    virtual sp<MetaData> getTrackMetaData(size_t index, uint32_t flags);
-    virtual sp<MetaData> getMetaData();
-    virtual void setUID(uid_t uid);
-
-    // Return the amount of data cached from the current
-    // playback positiion (in us).
-    // While more data is still being fetched *finalStatus == OK,
-    // Once fetching is completed (no more data available), *finalStatus != OK
-    // If fetching completed normally (i.e. reached EOS instead of IO error)
-    // *finalStatus == ERROR_END_OF_STREAM
-    int64_t getCachedDurationUs(status_t *finalStatus);
-
-    // Return the current estimated bandwidth
-    status_t getEstimatedBandwidthKbps(int32_t *kbps);
-
-    // Set to use adaptive streaming mode by the WV component.
-    // If adaptive == true, adaptive streaming mode will be used.
-    // Default mode is non-adaptive streaming mode.
-    // Should set to use adaptive streaming mode only if widevine:// protocol
-    // is used.
-    void setAdaptiveStreamingMode(bool adaptive);
-
-    // setCryptoPluginMode(true) to select crypto plugin mode.
-    // In this mode, the extractor returns encrypted data for use
-    // with the MediaCodec model, which handles the decryption in the
-    // codec.
-    void setCryptoPluginMode(bool cryptoPluginMode);
-
-    static bool getVendorLibHandle();
-
-    status_t getError();
-
-    void setError(status_t err);
-
-protected:
-    virtual ~WVMExtractor();
-
-private:
-    sp<DataSource> mDataSource;
-    sp<WVMLoadableExtractor> mImpl;
-
-    WVMExtractor(const WVMExtractor &);
-    WVMExtractor &operator=(const WVMExtractor &);
-};
-
-bool SniffWVM(
-        const sp<DataSource> &source, String8 *mimeType, float *confidence,
-        sp<AMessage> *);
-
-}  // namespace android
-
-#endif  // DRM_EXTRACTOR_H_
-
diff --git a/include/media/stagefright/YUVCanvas.h b/media/libstagefright/include/YUVCanvas.h
similarity index 100%
rename from include/media/stagefright/YUVCanvas.h
rename to media/libstagefright/include/YUVCanvas.h
diff --git a/include/media/stagefright/YUVImage.h b/media/libstagefright/include/YUVImage.h
similarity index 100%
rename from include/media/stagefright/YUVImage.h
rename to media/libstagefright/include/YUVImage.h
diff --git a/media/libstagefright/include/avc_utils.h b/media/libstagefright/include/avc_utils.h
index b2ef360..d05906a 100644
--- a/media/libstagefright/include/avc_utils.h
+++ b/media/libstagefright/include/avc_utils.h
@@ -18,6 +18,7 @@
 
 #define AVC_UTILS_H_
 
+#include <media/MediaCodecBuffer.h>
 #include <media/stagefright/foundation/ABuffer.h>
 #include <utils/Errors.h>
 
@@ -84,6 +85,7 @@
 sp<MetaData> MakeAVCCodecSpecificData(const sp<ABuffer> &accessUnit);
 
 bool IsIDR(const sp<ABuffer> &accessUnit);
+bool IsIDR(const sp<MediaCodecBuffer> &accessUnit);
 bool IsAVCReferenceFrame(const sp<ABuffer> &accessUnit);
 uint32_t FindAVCLayerId(const uint8_t *data, size_t size);
 
diff --git a/include/media/stagefright/foundation/AAtomizer.h b/media/libstagefright/include/foundation/AAtomizer.h
similarity index 100%
rename from include/media/stagefright/foundation/AAtomizer.h
rename to media/libstagefright/include/foundation/AAtomizer.h
diff --git a/include/media/stagefright/foundation/ABase.h b/media/libstagefright/include/foundation/ABase.h
similarity index 100%
rename from include/media/stagefright/foundation/ABase.h
rename to media/libstagefright/include/foundation/ABase.h
diff --git a/include/media/stagefright/foundation/ABitReader.h b/media/libstagefright/include/foundation/ABitReader.h
similarity index 100%
rename from include/media/stagefright/foundation/ABitReader.h
rename to media/libstagefright/include/foundation/ABitReader.h
diff --git a/include/media/stagefright/foundation/ABuffer.h b/media/libstagefright/include/foundation/ABuffer.h
similarity index 100%
rename from include/media/stagefright/foundation/ABuffer.h
rename to media/libstagefright/include/foundation/ABuffer.h
diff --git a/media/libstagefright/include/foundation/AData.h b/media/libstagefright/include/foundation/AData.h
new file mode 100644
index 0000000..49aa0dc
--- /dev/null
+++ b/media/libstagefright/include/foundation/AData.h
@@ -0,0 +1,843 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef STAGEFRIGHT_FOUNDATION_A_DATA_H_
+#define STAGEFRIGHT_FOUNDATION_A_DATA_H_
+
+#include <memory> // for std::shared_ptr, weak_ptr and unique_ptr
+#include <type_traits> // for std::aligned_union
+
+#include <utils/StrongPointer.h> // for android::sp and wp
+
+#include <media/stagefright/foundation/TypeTraits.h>
+#include <media/stagefright/foundation/Flagged.h>
+
+namespace android {
+
+/**
+ * AData is a flexible union type that supports non-POD members. It supports arbitrary types as long
+ * as they are either moveable or copyable.
+ *
+ * Internally, AData is using AUnion - a structure providing the union support. AUnion should not
+ * be used by generic code as it is very unsafe - it opens type aliasing errors where an object of
+ * one type can be easily accessed as an object of another type. AData prevents this.
+ *
+ * AData allows a custom type flagger to be used for future extensions (e.g. allowing automatic
+ * type conversion). A strict and a relaxed flagger are provided as internal types.
+ *
+ * Use as follows:
+ *
+ * AData<int, float>::Basic data; // strict type support
+ * int i = 1;
+ * float f = 7.0f;
+ *
+ * data.set(5);
+ * EXPECT_TRUE(data.find(&i));
+ * EXPECT_FALSE(data.find(&f));
+ * EXPECT_EQ(i, 5);
+ *
+ * data.set(6.0f);
+ * EXPECT_FALSE(data.find(&i));
+ * EXPECT_TRUE(data.find(&f));
+ * EXPECT_EQ(f, 6.0f);
+ *
+ * AData<int, sp<RefBase>>::RelaxedBasic objdata; // relaxed type support
+ * sp<ABuffer> buf = new ABuffer(16), buf2;
+ * sp<RefBase> obj;
+ *
+ * objdata.set(buf);
+ * EXPECT_TRUE(objdata.find(&buf2));
+ * EXPECT_EQ(buf, buf2);
+ * EXPECT_FALSE(objdata.find(&i));
+ * EXPECT_TRUE(objdata.find(&obj));
+ * EXPECT_TRUE(obj == buf);
+ *
+ * obj = buf;
+ * objdata.set(obj); // storing as sp<RefBase>
+ * EXPECT_FALSE(objdata.find(&buf2));  // not stored as ABuffer(!)
+ * EXPECT_TRUE(objdata.find(&obj));
+ */
+
+/// \cond Internal
+
+/**
+ * Helper class to call constructor and destructor for a specific type in AUnion.
+ * This class is needed as member function specialization is not allowed for a
+ * templated class.
+ */
+struct _AUnion_impl {
+    /**
+     * Calls placement constuctor for type T with arbitrary arguments for a storage at an address.
+     * Storage MUST be large enough to contain T.
+     * Also clears the slack space after type T. \todo This is not technically needed, so we may
+     * choose to do this just for debugging.
+     *
+     * \param totalSize size of the storage
+     * \param addr      pointer to where object T should be constructed
+     * \param args      arbitrary arguments for constructor
+     */
+    template<typename T, typename ...Args>
+    inline static void emplace(size_t totalSize, T *addr, Args&&... args) {
+        new(addr)T(std::forward<Args>(args)...);
+        // clear slack space - this is not technically required
+        constexpr size_t size = sizeof(T);
+        memset(reinterpret_cast<uint8_t*>(addr) + size, 0, totalSize - size);
+    }
+
+    /**
+     * Calls destuctor for an object of type T located at a specific address.
+     *
+     * \note we do not clear the storage in this case as the storage should not be used
+     * until another object is placed there, at which case the storage will be cleared.
+     *
+     * \param addr    pointer to where object T is stored
+     */
+    template<typename T>
+    inline static void del(T *addr) {
+        addr->~T();
+    }
+};
+
+/** Constructor specialization for void type */
+template<>
+inline void _AUnion_impl::emplace<void>(size_t totalSize, void *addr) {
+    memset(addr, 0, totalSize);
+}
+
+/** Destructor specialization for void type */
+template<>
+inline void _AUnion_impl::del<void>(void *) {
+}
+
+/// \endcond
+
+/**
+ * A templated union class that can contain specific types of data, and provides
+ * constructors, destructor and access methods strictly for those types.
+ *
+ * \note This class is VERY UNSAFE compared to a union, but it allows non-POD unions.
+ * In particular care must be taken that methods are called in a careful order to
+ * prevent accessing objects of one type as another type. This class provides no
+ * facilities to help with this ordering. This is meant to be wrapped by safer
+ * utility classes that do that.
+ *
+ * \param Ts types stored in this union.
+ */
+template<typename ...Ts>
+struct AUnion {
+private:
+    using _type = typename std::aligned_union<0, Ts...>::type; ///< storage type
+    _type mValue;                                              ///< storage
+
+public:
+    /**
+     * Constructs an object of type T with arbitrary arguments in this union. After this call,
+     * this union will contain this object.
+     *
+     * This method MUST be called only when either 1) no object or 2) a void object (equivalent to
+     * no object) is contained in this union.
+     *
+     * \param T     type of object to be constructed. This must be one of the template parameters of
+     *              the union class with the same cv-qualification, or void.
+     * \param args  arbitrary arguments for the constructor
+     */
+    template<
+            typename T, typename ...Args,
+            typename=typename std::enable_if<is_one_of<T, void, Ts...>::value>::type>
+    inline void emplace(Args&&... args) {
+        _AUnion_impl::emplace(
+                sizeof(_type), reinterpret_cast<T*>(&mValue), std::forward<Args>(args)...);
+    }
+
+    /**
+     * Destructs an object of type T in this union. After this call, this union will contain no
+     * object.
+     *
+     * This method MUST be called only when this union contains an object of type T.
+     *
+     * \param T     type of object to be destructed. This must be one of the template parameters of
+     *              the union class with the same cv-qualification, or void.
+     */
+    template<
+            typename T,
+            typename=typename std::enable_if<is_one_of<T, void, Ts...>::value>::type>
+    inline void del() {
+        _AUnion_impl::del(reinterpret_cast<T*>(&mValue));
+    }
+
+    /**
+     * Returns a const reference to the object of type T in this union.
+     *
+     * This method MUST be called only when this union contains an object of type T.
+     *
+     * \param T     type of object to be returned. This must be one of the template parameters of
+     *              the union class with the same cv-qualification.
+     */
+    template<
+            typename T,
+            typename=typename std::enable_if<is_one_of<T, Ts...>::value>::type>
+    inline const T &get() const {
+        return *reinterpret_cast<const T*>(&mValue);
+    }
+
+    /**
+     * Returns a reference to the object of type T in this union.
+     *
+     * This method MUST be called only when this union contains an object of type T.
+     *
+     * \param T     type of object to be returned. This must be one of the template parameters of
+     *              the union class with the same cv-qualification.
+     */
+    template<typename T>
+    inline T &get() {
+        return *reinterpret_cast<T*>(&mValue);
+    }
+};
+
+/**
+ * Helper utility class that copies an object of type T to a destination.
+ *
+ * T must be copy assignable or copy constructible.
+ *
+ * It provides:
+ *
+ * void assign(T*, const U&) // for copiable types - this leaves the source unchanged, hence const.
+ *
+ * \param T type of object to assign to
+ */
+template<
+        typename T,
+        bool=std::is_copy_assignable<T>::value>
+struct _AData_copier {
+    static_assert(std::is_copy_assignable<T>::value, "T must be copy assignable here");
+
+    /**
+     * Copies src to data without modifying data.
+     *
+     * \param data pointer to destination
+     * \param src source object
+     */
+    inline static void assign(T *data, const T &src) {
+        *data = src;
+    }
+
+    template<typename U>
+    using enable_if_T_is_same_as = typename std::enable_if<std::is_same<U, T>::value>::type;
+
+    /**
+     * Downcast specializations for sp<>, shared_ptr<> and weak_ptr<>
+     */
+    template<typename Tp, typename U, typename=enable_if_T_is_same_as<sp<Tp>>>
+    inline static void assign(sp<Tp> *data, const sp<U> &src) {
+        *data = static_cast<Tp*>(src.get());
+    }
+
+    template<typename Tp, typename U, typename=enable_if_T_is_same_as<wp<Tp>>>
+    inline static void assign(wp<Tp> *data, const wp<U> &src) {
+        sp<U> __tmp = src.promote();
+        *data = static_cast<Tp*>(__tmp.get());
+    }
+
+    template<typename Tp, typename U, typename=enable_if_T_is_same_as<sp<Tp>>>
+    inline static void assign(sp<Tp> *data, sp<U> &&src) {
+        sp<U> __tmp = std::move(src); // move src out as get cannot
+        *data = static_cast<Tp*>(__tmp.get());
+    }
+
+    template<typename Tp, typename U, typename=enable_if_T_is_same_as<std::shared_ptr<Tp>>>
+    inline static void assign(std::shared_ptr<Tp> *data, const std::shared_ptr<U> &src) {
+        *data = std::static_pointer_cast<Tp>(src);
+    }
+
+    template<typename Tp, typename U, typename=enable_if_T_is_same_as<std::shared_ptr<Tp>>>
+    inline static void assign(std::shared_ptr<Tp> *data, std::shared_ptr<U> &&src) {
+        std::shared_ptr<U> __tmp = std::move(src); // move src out as static_pointer_cast cannot
+        *data = std::static_pointer_cast<Tp>(__tmp);
+    }
+
+    template<typename Tp, typename U, typename=enable_if_T_is_same_as<std::weak_ptr<Tp>>>
+    inline static void assign(std::weak_ptr<Tp> *data, const std::weak_ptr<U> &src) {
+        *data = std::static_pointer_cast<Tp>(src.lock());
+    }
+
+    // shared_ptrs are implicitly convertible to weak_ptrs but not vice versa, but picking the
+    // first compatible type in Ts requires having shared_ptr types before weak_ptr types, so that
+    // they are stored as shared_ptrs.
+    /**
+     * Provide sensible error message if encountering shared_ptr/weak_ptr ambiguity. This method
+     * is not enough to detect this, only if someone is trying to find the shared_ptr.
+     */
+    template<typename Tp, typename U>
+    inline static void assign(std::shared_ptr<Tp> *, const std::weak_ptr<U> &) {
+        static_assert(std::is_same<Tp, void>::value,
+                      "shared/weak pointer ambiguity. move shared ptr types before weak_ptrs");
+    }
+};
+
+/**
+ * Template specialization for non copy assignable, but copy constructible types.
+ *
+ * \todo Test this. No basic classes are copy constructible but not assignable.
+ *
+ */
+template<typename T>
+struct _AData_copier<T, false> {
+    static_assert(!std::is_copy_assignable<T>::value, "T must not be copy assignable here");
+    static_assert(std::is_copy_constructible<T>::value, "T must be copy constructible here");
+
+    inline static void copy(T *data, const T &src) {
+        data->~T();
+        new(data)T(src);
+    }
+};
+
+/**
+ * Helper utility class that moves an object of type T to a destination.
+ *
+ * T must be move assignable or move constructible.
+ *
+ * It provides multiple methods:
+ *
+ * void assign(T*, T&&)
+ *
+ * \param T type of object to assign
+ */
+template<
+        typename T,
+        bool=std::is_move_assignable<T>::value>
+struct _AData_mover {
+    static_assert(std::is_move_assignable<T>::value, "T must be move assignable here");
+
+    /**
+     * Moves src to data while likely modifying it.
+     *
+     * \param data pointer to destination
+     * \param src source object
+     */
+    inline static void assign(T *data, T &&src) {
+        *data = std::move(src);
+    }
+
+    template<typename U>
+    using enable_if_T_is_same_as = typename std::enable_if<std::is_same<U, T>::value>::type;
+
+    /**
+     * Downcast specializations for sp<>, shared_ptr<> and weak_ptr<>
+     */
+    template<typename Tp, typename U, typename=enable_if_T_is_same_as<sp<Tp>>>
+    inline static void assign(sp<Tp> *data, sp<U> &&src) {
+        sp<U> __tmp = std::move(src); // move src out as get cannot
+        *data = static_cast<Tp*>(__tmp.get());
+    }
+
+    template<typename Tp, typename U, typename=enable_if_T_is_same_as<std::shared_ptr<Tp>>>
+    inline static void assign(std::shared_ptr<Tp> *data, std::shared_ptr<U> &&src) {
+        std::shared_ptr<U> __tmp = std::move(src); // move src out as static_pointer_cast cannot
+        *data = std::static_pointer_cast<Tp>(__tmp);
+    }
+
+    template<typename Tp, typename Td, typename U, typename Ud,
+            typename=enable_if_T_is_same_as<std::unique_ptr<Tp, Td>>>
+    inline static void assign(std::unique_ptr<Tp, Td> *data, std::unique_ptr<U, Ud> &&src) {
+        *data = std::unique_ptr<Tp, Td>(static_cast<Tp*>(src.release()));
+    }
+
+    // shared_ptrs are implicitly convertible to weak_ptrs but not vice versa, but picking the
+    // first compatible type in Ts requires having shared_ptr types before weak_ptr types, so that
+    // they are stored as shared_ptrs.
+    /**
+     * Provide sensible error message if encountering shared_ptr/weak_ptr ambiguity. This method
+     * is not enough to detect this, only if someone is trying to remove the shared_ptr.
+     */
+    template<typename Tp, typename U>
+    inline static void assign(std::shared_ptr<Tp> *, std::weak_ptr<U> &&) {
+        static_assert(std::is_same<Tp, void>::value,
+                      "shared/weak pointer ambiguity. move shared ptr types before weak_ptrs");
+    }
+
+    // unique_ptrs are implicitly convertible to shared_ptrs but not vice versa, but picking the
+    // first compatible type in Ts requires having unique_ptrs types before shared_ptrs types, so
+    // that they are stored as unique_ptrs.
+    /**
+     * Provide sensible error message if encountering shared_ptr/unique_ptr ambiguity. This method
+     * is not enough to detect this, only if someone is trying to remove the unique_ptr.
+     */
+    template<typename Tp, typename U>
+    inline static void assign(std::unique_ptr<Tp> *, std::shared_ptr<U> &&) {
+        static_assert(std::is_same<Tp, void>::value,
+                      "unique/shared pointer ambiguity. move unique ptr types before shared_ptrs");
+    }
+};
+
+/**
+ * Template specialization for non move assignable, but move constructible types.
+ *
+ * \todo Test this. No basic classes are move constructible but not assignable.
+ *
+ */
+template<typename T>
+struct _AData_mover<T, false> {
+    static_assert(!std::is_move_assignable<T>::value, "T must not be move assignable here");
+    static_assert(std::is_move_constructible<T>::value, "T must be move constructible here");
+
+    inline static void assign(T *data, T &&src) {
+        data->~T();
+        new(data)T(std::move(src));
+    }
+};
+
+/**
+ * Helper template that deletes an object of a specific type (member) in an AUnion.
+ *
+ * \param Flagger type flagger class (see AData)
+ * \param U AUnion object in which the member should be deleted
+ * \param Ts types to consider for the member
+ */
+template<typename Flagger, typename U, typename ...Ts>
+struct _AData_deleter;
+
+/**
+ * Template specialization when there are still types to consider (T and rest)
+ */
+template<typename Flagger, typename U, typename T, typename ...Ts>
+struct _AData_deleter<Flagger, U, T, Ts...> {
+    static bool del(typename Flagger::type flags, U &data) {
+        if (Flagger::canDeleteAs(flags, Flagger::flagFor((T*)0))) {
+            data.template del<T>();
+            return true;
+        }
+        return _AData_deleter<Flagger, U, Ts...>::del(flags, data);
+    }
+};
+
+/**
+ * Template specialization when there are no more types to consider.
+ */
+template<typename Flagger, typename U>
+struct _AData_deleter<Flagger, U> {
+    inline static bool del(typename Flagger::type, U &) {
+        return false;
+    }
+};
+
+/**
+ * Container that can store an arbitrary object of a set of specified types.
+ *
+ * This struct is an outer class that contains various inner classes based on desired type
+ * strictness. The following inner classes are supported:
+ *
+ * AData<types...>::Basic   - strict type support using uint32_t flag.
+ *
+ * AData<types...>::Strict<Flag> - strict type support using custom flag.
+ * AData<types...>::Relaxed<Flag, MaxSize, Align>
+ *                          - relaxed type support with compatible (usually derived) class support
+ *                            for pointer types with added size checking for minimal additional
+ *                            safety.
+ *
+ * AData<types...>::RelaxedBasic - strict type support using uint32_t flag.
+ *
+ * AData<types...>::Custom<flagger> - custom type support (flaggers determine the supported types
+ *                                    and the base type to use for each)
+ *
+ */
+template<typename ...Ts>
+struct AData {
+private:
+    static_assert(are_unique<Ts...>::value, "types must be unique");
+
+    static constexpr size_t num_types = sizeof...(Ts); ///< number of types to support
+
+public:
+    /**
+     * Default (strict) type flagger provided.
+     *
+     * The default flagger simply returns the index of the type within Ts, or 0 for void.
+     *
+     * Type flaggers return a flag for a supported type.
+     *
+     * They must provide:
+     *
+     * - a flagFor(T*) method for supported types _and_ for T=void. T=void is used to mark that no
+     *   object is stored in the container. For this, an arbitrary unique value may be returned.
+     * - a mask field that contains the flag mask.
+     * - a canDeleteAs(Flag, Flag) flag comparison method that checks if a type of a flag can be
+     *   deleted as another type.
+     *
+     * \param Flag the underlying unsigned integral to use for the flags.
+     */
+    template<typename Flag>
+    struct flagger {
+    private:
+        static_assert(std::is_unsigned<Flag>::value, "Flag must be unsigned");
+        static_assert(std::is_integral<Flag>::value, "Flag must be an integral type");
+
+        static constexpr Flag count = num_types + 1;
+
+    public:
+        typedef Flag type; ///< flag type
+
+        static constexpr Flag mask = _Flagged_helper::minMask<Flag>(count); ///< flag mask
+
+        /**
+         * Return the stored type for T. This is itself.
+         */
+        template<typename T>
+        struct store {
+            typedef T as_type; ///< the base type that T is stored as
+        };
+
+        /**
+         * Constexpr method that returns if two flags are compatible for deletion.
+         *
+         * \param objectFlag flag for object to be deleted
+         * \param deleteFlag flag for type that object is to be deleted as
+         */
+        static constexpr bool canDeleteAs(Flag objectFlag, Flag deleteFlag) {
+            // default flagger requires strict type equality
+            return objectFlag == deleteFlag;
+        }
+
+        /**
+         * Constexpr method that returns the flag to use for a given type.
+         *
+         * Function overload for void*.
+         */
+        static constexpr Flag flagFor(void*) {
+            return 0u;
+        }
+
+        /**
+         * Constexpr method that returns the flag to use for a given supported type (T).
+         */
+        template<typename T, typename=typename std::enable_if<is_one_of<T, Ts...>::value>::type>
+        static constexpr Flag flagFor(T*) {
+            return find_first<T, Ts...>::index;
+        }
+    };
+
+    /**
+     * Relaxed flagger returns the index of the type within Ts. However, for pointers T* it returns
+     * the first type in Ts that T* can be converted into (this is normally a base type, but also
+     * works for sp<>, shared_ptr<> or unique_ptr<>). For a bit more strictness, the flag also
+     * contains the size of the class to avoid finding objects that were stored as a different
+     * derived class of the same base class.
+     *
+     * Flag is basically the index of the (base) type in Ts multiplied by the max size stored plus
+     * the size of the type (divided by alignment) for derived pointer types.
+     *
+     * \param MaxSize max supported size for derived class pointers
+     * \param Align alignment to assume for derived class pointers
+     */
+    template<typename Flag, size_t MaxSize=1024, size_t Align=4>
+    struct relaxed_flagger {
+    private:
+        static_assert(std::is_unsigned<Flag>::value, "Flag must be unsigned");
+        static_assert(std::is_integral<Flag>::value, "Flag must be an integral type");
+
+        static constexpr Flag count = num_types + 1;
+        static_assert(std::numeric_limits<Flag>::max() / count > (MaxSize / Align),
+                      "not enough bits to fit into flag");
+
+        static constexpr Flag max_size_stored = MaxSize / Align + 1;
+
+        // T can be converted if it's size is <= MaxSize and it can be converted to one of the Ts
+        template<typename T, size_t size>
+        using enable_if_can_be_converted = typename std::enable_if<
+                (size / Align < max_size_stored
+                        && find_first_convertible_to<T, Ts...>::index)>::type;
+
+
+        template<typename W, typename T, typename=enable_if_can_be_converted<W, sizeof(T)>>
+        static constexpr Flag relaxedFlagFor(W*, T*) {
+            return find_first_convertible_to<W, Ts...>::index * max_size_stored
+                    + (is_one_of<W, Ts...>::value ? 0 : (sizeof(T) / Align));
+        }
+
+    public:
+        typedef Flag type; ///< flag type
+
+        static constexpr Flag mask =
+            _Flagged_helper::minMask<Flag>(count * max_size_stored); ///< flag mask
+
+        /**
+         * Constexpr method that returns if two flags are compatible for deletion.
+         *
+         * \param objectFlag flag for object to be deleted
+         * \param deleteFlag flag for type that object is to be deleted as
+         */
+        static constexpr bool canDeleteAs(Flag objectFlag, Flag deleteFlag) {
+            // can delete if objects have the same base type
+            return
+                objectFlag / max_size_stored == deleteFlag / max_size_stored &&
+                (deleteFlag % max_size_stored) == 0;
+        }
+
+        /**
+         * Constexpr method that returns the flag to use for a given type.
+         *
+         * Function overload for void*.
+         */
+        static constexpr Flag flagFor(void*) {
+            return 0u;
+        }
+
+        /**
+         * Constexpr method that returns the flag to use for a given supported type (T).
+         *
+         * This is a member method to enable both overloading as well as template specialization.
+         */
+        template<typename T, typename=typename std::enable_if<is_one_of<T, Ts...>::value>::type>
+        static constexpr Flag flagFor(T*) {
+            return find_first<T, Ts...>::index * max_size_stored;
+        }
+
+        /**
+         * For precaution, we only consider converting pointers to their base classes.
+         */
+
+        /**
+         * Template specialization for derived class pointers and managed pointers.
+         */
+        template<typename T>
+        static constexpr Flag flagFor(T**p) { return relaxedFlagFor(p, (T*)0); }
+        template<typename T>
+        static constexpr Flag flagFor(std::shared_ptr<T>*p) { return relaxedFlagFor(p, (T*)0); }
+        template<typename T>
+        static constexpr Flag flagFor(std::unique_ptr<T>*p) { return relaxedFlagFor(p, (T*)0); }
+        template<typename T>
+        static constexpr Flag flagFor(std::weak_ptr<T>*p) { return relaxedFlagFor(p, (T*)0); }
+        template<typename T>
+        static constexpr Flag flagFor(sp<T>*p) { return relaxedFlagFor(p, (T*)0); }
+        template<typename T>
+        static constexpr Flag flagFor(wp<T>*p) { return relaxedFlagFor(p, (T*)0); }
+
+        /**
+         * Type support template that provodes the stored type for T.
+         * This is itself if it is one of Ts, or the first type in Ts that T is convertible to.
+         *
+         * NOTE: This template may provide a base class for an unsupported type. Support is
+         * determined by flagFor().
+         */
+        template<typename T>
+        struct store {
+            typedef typename std::conditional<
+                    is_one_of<T, Ts...>::value,
+                    T,
+                    typename find_first_convertible_to<T, Ts...>::type>::type as_type;
+        };
+    };
+
+    /**
+     * Implementation of AData.
+     */
+    template<typename Flagger>
+    struct Custom : protected Flagged<AUnion<Ts...>, typename Flagger::type, Flagger::mask> {
+        using data_t = AUnion<Ts...>;
+        using base_t = Flagged<AUnion<Ts...>, typename Flagger::type, Flagger::mask>;
+
+        /**
+         * Constructor. Initializes this to a container that does not contain any object.
+         */
+        Custom() : base_t(Flagger::flagFor((void*)0)) { }
+
+        /**
+         * Removes the contained object, if any.
+         */
+        ~Custom() {
+            if (!this->clear()) {
+                __builtin_trap();
+                // std::cerr << "could not delete data of type " << this->flags() << std::endl;
+            }
+        }
+
+        /**
+         * Returns whether there is any object contained.
+         */
+        inline bool used() const {
+            return this->flags() != Flagger::flagFor((void*)0);
+        }
+
+        /**
+         * Removes the contained object, if any. Returns true if there are no objects contained,
+         * or false on any error (this is highly unexpected).
+         */
+        bool clear() {
+            if (this->used()) {
+                if (_AData_deleter<Flagger, data_t, Ts...>::del(this->flags(), this->get())) {
+                    this->setFlags(Flagger::flagFor((void*)0));
+                    return true;
+                }
+                return false;
+            }
+            return true;
+        }
+
+        template<typename T>
+        using is_supported_by_flagger =
+            typename std::enable_if<Flagger::flagFor((T*)0) != Flagger::flagFor((void*)0)>::type;
+
+        /**
+         * Checks if there is a copiable object of type T in this container. If there is, it copies
+         * that object into the provided address and returns true. Otherwise, it does nothing and
+         * returns false.
+         *
+         * This method normally requires a flag equality between the stored and retrieved types.
+         * However, it also allows retrieving the stored object as the stored type
+         * (usually base type).
+         *
+         * \param T type of object to sought
+         * \param data address at which the object should be retrieved
+         *
+         * \return true if the object was retrieved. false if it was not.
+         */
+        template<
+                typename T,
+                typename=is_supported_by_flagger<T>>
+        bool find(T *data) const {
+            using B = typename Flagger::template store<T>::as_type;
+            if (this->flags() == Flagger::flagFor((T*)0) ||
+                Flagger::canDeleteAs(this->flags(), Flagger::flagFor((T*)0))) {
+                _AData_copier<T>::assign(data, this->get().template get<B>());
+                return true;
+            }
+            return false;
+        }
+
+        /**
+         * Checks if there is an object of type T in this container. If there is, it moves that
+         * object into the provided address and returns true. Otherwise, it does nothing and returns
+         * false.
+         *
+         * This method normally requires a flag equality between the stored and retrieved types.
+         * However, it also allows retrieving the stored object as the stored type
+         * (usually base type).
+         *
+         * \param T type of object to sought
+         * \param data address at which the object should be retrieved.
+         *
+         * \return true if the object was retrieved. false if it was not.
+         */
+        template<
+                typename T,
+                typename=is_supported_by_flagger<T>>
+        bool remove(T *data) {
+            using B = typename Flagger::template store<T>::as_type;
+            if (this->flags() == Flagger::flagFor((T*)0) ||
+                Flagger::canDeleteAs(this->flags(), Flagger::flagFor((T*)0))) {
+                _AData_mover<T>::assign(data, std::move(this->get().template get<B>()));
+                return true;
+            }
+            return false;
+        }
+
+        /**
+         * Stores an object into this container by copying. If it was successful, returns true.
+         * Otherwise, (e.g. it could not destroy the already stored object) it returns false. This
+         * latter would be highly unexpected.
+         *
+         * \param T type of object to store
+         * \param data object to store
+         *
+         * \return true if the object was stored. false if it was not.
+         */
+        template<
+                typename T,
+                typename=is_supported_by_flagger<T>,
+                typename=typename std::enable_if<
+                        std::is_copy_constructible<T>::value ||
+                        (std::is_default_constructible<T>::value &&
+                                std::is_copy_assignable<T>::value)>::type>
+        bool set(const T &data) {
+            using B = typename Flagger::template store<T>::as_type;
+
+            // if already contains an object of this type, simply assign
+            if (this->flags() == Flagger::flagFor((T*)0) && std::is_same<T, B>::value) {
+                _AData_copier<B>::assign(&this->get().template get<B>(), data);
+                return true;
+            } else if (this->used()) {
+                // destroy previous object
+                if (!this->clear()) {
+                    return false;
+                }
+            }
+            this->get().template emplace<B>(data);
+            this->setFlags(Flagger::flagFor((T *)0));
+            return true;
+        }
+
+        /**
+         * Moves an object into this container. If it was successful, returns true. Otherwise,
+         * (e.g. it could not destroy the already stored object) it returns false. This latter
+         * would be highly unexpected.
+         *
+         * \param T type of object to store
+         * \param data object to store
+         *
+         * \return true if the object was stored. false if it was not.
+         */
+        template<
+                typename T,
+                typename=is_supported_by_flagger<T>>
+        bool set(T &&data) {
+            using B = typename Flagger::template store<T>::as_type;
+
+            // if already contains an object of this type, simply assign
+            if (this->flags() == Flagger::flagFor((T*)0) && std::is_same<T, B>::value) {
+                _AData_mover<B>::assign(&this->get().template get<B>(), std::forward<T&&>(data));
+                return true;
+            } else if (this->used()) {
+                // destroy previous object
+                if (!this->clear()) {
+                    return false;
+                }
+            }
+            this->get().template emplace<B>(std::forward<T&&>(data));
+            this->setFlags(Flagger::flagFor((T *)0));
+            return true;
+        }
+    };
+
+    /**
+     * Basic AData using the default type flagger and requested flag type.
+     *
+     * \param Flag desired flag type to use. Must be an unsigned and std::integral type.
+     */
+    template<typename Flag>
+    using Strict = Custom<flagger<Flag>>;
+
+    /**
+     * Basic AData using the default type flagger and uint32_t flag.
+     */
+    using Basic = Strict<uint32_t>;
+
+    /**
+     * AData using the relaxed type flagger for max size and requested flag type.
+     *
+     * \param Flag desired flag type to use. Must be an unsigned and std::integral type.
+     */
+    template<typename Flag, size_t MaxSize = 1024, size_t Align = 4>
+    using Relaxed = Custom<relaxed_flagger<Flag, MaxSize, Align>>;
+
+    /**
+     * Basic AData using the relaxed type flagger and uint32_t flag.
+     */
+    using RelaxedBasic = Relaxed<uint32_t>;
+};
+
+}  // namespace android
+
+#endif  // STAGEFRIGHT_FOUNDATION_A_DATA_H_
+
diff --git a/include/media/stagefright/foundation/ADebug.h b/media/libstagefright/include/foundation/ADebug.h
similarity index 100%
rename from include/media/stagefright/foundation/ADebug.h
rename to media/libstagefright/include/foundation/ADebug.h
diff --git a/include/media/stagefright/foundation/AHandler.h b/media/libstagefright/include/foundation/AHandler.h
similarity index 100%
rename from include/media/stagefright/foundation/AHandler.h
rename to media/libstagefright/include/foundation/AHandler.h
diff --git a/include/media/stagefright/foundation/AHandlerReflector.h b/media/libstagefright/include/foundation/AHandlerReflector.h
similarity index 100%
rename from include/media/stagefright/foundation/AHandlerReflector.h
rename to media/libstagefright/include/foundation/AHandlerReflector.h
diff --git a/include/media/stagefright/foundation/AHierarchicalStateMachine.h b/media/libstagefright/include/foundation/AHierarchicalStateMachine.h
similarity index 100%
rename from include/media/stagefright/foundation/AHierarchicalStateMachine.h
rename to media/libstagefright/include/foundation/AHierarchicalStateMachine.h
diff --git a/include/media/stagefright/foundation/ALookup.h b/media/libstagefright/include/foundation/ALookup.h
similarity index 100%
rename from include/media/stagefright/foundation/ALookup.h
rename to media/libstagefright/include/foundation/ALookup.h
diff --git a/include/media/stagefright/foundation/ALooper.h b/media/libstagefright/include/foundation/ALooper.h
similarity index 100%
rename from include/media/stagefright/foundation/ALooper.h
rename to media/libstagefright/include/foundation/ALooper.h
diff --git a/include/media/stagefright/foundation/ALooperRoster.h b/media/libstagefright/include/foundation/ALooperRoster.h
similarity index 100%
rename from include/media/stagefright/foundation/ALooperRoster.h
rename to media/libstagefright/include/foundation/ALooperRoster.h
diff --git a/include/media/stagefright/foundation/AMessage.h b/media/libstagefright/include/foundation/AMessage.h
similarity index 100%
rename from include/media/stagefright/foundation/AMessage.h
rename to media/libstagefright/include/foundation/AMessage.h
diff --git a/include/media/stagefright/foundation/ANetworkSession.h b/media/libstagefright/include/foundation/ANetworkSession.h
similarity index 100%
rename from include/media/stagefright/foundation/ANetworkSession.h
rename to media/libstagefright/include/foundation/ANetworkSession.h
diff --git a/include/media/stagefright/foundation/AString.h b/media/libstagefright/include/foundation/AString.h
similarity index 100%
rename from include/media/stagefright/foundation/AString.h
rename to media/libstagefright/include/foundation/AString.h
diff --git a/include/media/stagefright/foundation/AStringUtils.h b/media/libstagefright/include/foundation/AStringUtils.h
similarity index 100%
rename from include/media/stagefright/foundation/AStringUtils.h
rename to media/libstagefright/include/foundation/AStringUtils.h
diff --git a/include/media/stagefright/foundation/AUtils.h b/media/libstagefright/include/foundation/AUtils.h
similarity index 100%
rename from include/media/stagefright/foundation/AUtils.h
rename to media/libstagefright/include/foundation/AUtils.h
diff --git a/include/media/stagefright/foundation/AWakeLock.h b/media/libstagefright/include/foundation/AWakeLock.h
similarity index 100%
rename from include/media/stagefright/foundation/AWakeLock.h
rename to media/libstagefright/include/foundation/AWakeLock.h
diff --git a/media/libstagefright/include/foundation/ColorUtils.h b/media/libstagefright/include/foundation/ColorUtils.h
new file mode 100644
index 0000000..b889a02
--- /dev/null
+++ b/media/libstagefright/include/foundation/ColorUtils.h
@@ -0,0 +1,232 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef COLOR_UTILS_H_
+
+#define COLOR_UTILS_H_
+
+#include <stdint.h>
+
+#define STRINGIFY_ENUMS
+
+#include <media/stagefright/foundation/AMessage.h>
+
+#include <media/hardware/VideoAPI.h>
+#include <system/graphics.h>
+
+namespace android {
+
+struct ColorUtils {
+    /*
+     * Media-platform color constants. MediaCodec uses (an extended version of) platform-defined
+     * constants that are derived from HAL_DATASPACE, since these are directly exposed to the user.
+     * We extend the values to maintain the richer set of information defined inside media
+     * containers and bitstreams that are not supported by the platform. We also expect vendors
+     * to extend some of these values with vendor-specific values. These are separated into a
+     * vendor-extension section so they won't collide with future platform values.
+     */
+
+#define GET_HAL_ENUM(class, name) HAL_DATASPACE_##class##name
+#define GET_HAL_BITFIELD(class, name) (GET_HAL_ENUM(class, _##name) >> GET_HAL_ENUM(class, _SHIFT))
+
+    enum ColorStandard : uint32_t {
+        kColorStandardUnspecified =          GET_HAL_BITFIELD(STANDARD, UNSPECIFIED),
+        kColorStandardBT709 =                GET_HAL_BITFIELD(STANDARD, BT709),
+        kColorStandardBT601_625 =            GET_HAL_BITFIELD(STANDARD, BT601_625),
+        kColorStandardBT601_625_Unadjusted = GET_HAL_BITFIELD(STANDARD, BT601_625_UNADJUSTED),
+        kColorStandardBT601_525 =            GET_HAL_BITFIELD(STANDARD, BT601_525),
+        kColorStandardBT601_525_Unadjusted = GET_HAL_BITFIELD(STANDARD, BT601_525_UNADJUSTED),
+        kColorStandardBT2020 =               GET_HAL_BITFIELD(STANDARD, BT2020),
+        kColorStandardBT2020Constant =       GET_HAL_BITFIELD(STANDARD, BT2020_CONSTANT_LUMINANCE),
+        kColorStandardBT470M =               GET_HAL_BITFIELD(STANDARD, BT470M),
+        kColorStandardFilm =                 GET_HAL_BITFIELD(STANDARD, FILM),
+        kColorStandardMax =                  GET_HAL_BITFIELD(STANDARD, MASK),
+
+        /* This marks a section of color-standard values that are not supported by graphics HAL,
+           but track defined color primaries-matrix coefficient combinations in media.
+           These are stable for a given release. */
+        kColorStandardExtendedStart = kColorStandardMax + 1,
+
+        /* This marks a section of color-standard values that are not supported by graphics HAL
+           nor using media defined color primaries or matrix coefficients. These may differ per
+           device. */
+        kColorStandardVendorStart = 0x10000,
+    };
+
+    enum ColorTransfer : uint32_t  {
+        kColorTransferUnspecified = GET_HAL_BITFIELD(TRANSFER, UNSPECIFIED),
+        kColorTransferLinear =      GET_HAL_BITFIELD(TRANSFER, LINEAR),
+        kColorTransferSRGB =        GET_HAL_BITFIELD(TRANSFER, SRGB),
+        kColorTransferSMPTE_170M =  GET_HAL_BITFIELD(TRANSFER, SMPTE_170M),
+        kColorTransferGamma22 =     GET_HAL_BITFIELD(TRANSFER, GAMMA2_2),
+        kColorTransferGamma28 =     GET_HAL_BITFIELD(TRANSFER, GAMMA2_8),
+        kColorTransferST2084 =      GET_HAL_BITFIELD(TRANSFER, ST2084),
+        kColorTransferHLG =         GET_HAL_BITFIELD(TRANSFER, HLG),
+        kColorTransferMax =         GET_HAL_BITFIELD(TRANSFER, MASK),
+
+        /* This marks a section of color-transfer values that are not supported by graphics HAL,
+           but track media-defined color-transfer. These are stable for a given release. */
+        kColorTransferExtendedStart = kColorTransferMax + 1,
+
+        /* This marks a section of color-transfer values that are not supported by graphics HAL
+           nor defined by media. These may differ per device. */
+        kColorTransferVendorStart = 0x10000,
+    };
+
+    enum ColorRange : uint32_t  {
+        kColorRangeUnspecified = GET_HAL_BITFIELD(RANGE, UNSPECIFIED),
+        kColorRangeFull =        GET_HAL_BITFIELD(RANGE, FULL),
+        kColorRangeLimited =     GET_HAL_BITFIELD(RANGE, LIMITED),
+        kColorRangeMax =         GET_HAL_BITFIELD(RANGE, MASK),
+
+        /* This marks a section of color-transfer values that are not supported by graphics HAL,
+           but track media-defined color-transfer. These are stable for a given release. */
+        kColorRangeExtendedStart = kColorRangeMax + 1,
+
+        /* This marks a section of color-transfer values that are not supported by graphics HAL
+           nor defined by media. These may differ per device. */
+        kColorRangeVendorStart = 0x10000,
+    };
+
+#undef GET_HAL_BITFIELD
+#undef GET_HAL_ENUM
+
+    /*
+     * Static utilities for codec support
+     */
+
+    // using int32_t for media range/standard/transfers to denote extended ranges
+    // wrap methods change invalid aspects to the Unspecified value
+    static int32_t wrapColorAspectsIntoColorStandard(
+            ColorAspects::Primaries primaries, ColorAspects::MatrixCoeffs coeffs);
+    static int32_t wrapColorAspectsIntoColorRange(ColorAspects::Range range);
+    static int32_t wrapColorAspectsIntoColorTransfer(ColorAspects::Transfer transfer);
+
+    // unwrap methods change invalid aspects to the Other value
+    static status_t unwrapColorAspectsFromColorRange(
+            int32_t range, ColorAspects::Range *aspect);
+    static status_t unwrapColorAspectsFromColorTransfer(
+            int32_t transfer, ColorAspects::Transfer *aspect);
+    static status_t unwrapColorAspectsFromColorStandard(
+            int32_t standard,
+            ColorAspects::Primaries *primaries, ColorAspects::MatrixCoeffs *coeffs);
+
+    static status_t convertPlatformColorAspectsToCodecAspects(
+            int32_t range, int32_t standard, int32_t transfer, ColorAspects &aspects);
+    static status_t convertCodecColorAspectsToPlatformAspects(
+            const ColorAspects &aspects, int32_t *range, int32_t *standard, int32_t *transfer);
+
+    // converts Other values to Unspecified
+    static void convertCodecColorAspectsToIsoAspects(
+            const ColorAspects &aspects,
+            int32_t *primaries, int32_t *transfer, int32_t *coeffs, bool *fullRange);
+    // converts unsupported values to Other
+    static void convertIsoColorAspectsToCodecAspects(
+            int32_t primaries, int32_t transfer, int32_t coeffs, bool fullRange,
+            ColorAspects &aspects);
+
+    // unpack a uint32_t to a full ColorAspects struct
+    static ColorAspects unpackToColorAspects(uint32_t packed);
+
+    // pack a full ColorAspects struct into a uint32_t
+    static uint32_t packToU32(const ColorAspects &aspects);
+
+    // updates Unspecified color aspects to their defaults based on the video size
+    static void setDefaultCodecColorAspectsIfNeeded(
+            ColorAspects &aspects, int32_t width, int32_t height);
+
+    // it returns the closest dataSpace for given color |aspects|. if |mayExpand| is true, it allows
+    // returning a larger dataSpace that contains the color space given by |aspects|, and is better
+    // suited to blending. This requires implicit color space conversion on part of the device.
+    static android_dataspace getDataSpaceForColorAspects(ColorAspects &aspects, bool mayExpand);
+
+    // converts |dataSpace| to a V0 enum, and returns true if dataSpace is an aspect-only value
+    static bool convertDataSpaceToV0(android_dataspace &dataSpace);
+
+    // compares |aspect| to |orig|. Returns |true| if any aspects have changed, except if they
+    // changed to Unspecified value. It also sets the changed values to Unspecified in |aspect|.
+    static bool checkIfAspectsChangedAndUnspecifyThem(
+            ColorAspects &aspects, const ColorAspects &orig, bool usePlatformAspects = false);
+
+    // finds color config in format, defaulting them to 0.
+    static void getColorConfigFromFormat(
+            const sp<AMessage> &format, int *range, int *standard, int *transfer);
+
+    // copies existing color config from |source| to |target|.
+    static void copyColorConfig(const sp<AMessage> &source, sp<AMessage> &target);
+
+    // finds color config in format as ColorAspects, defaulting them to 0.
+    static void getColorAspectsFromFormat(const sp<AMessage> &format, ColorAspects &aspects);
+
+    // writes |aspects| into format. iff |force| is false, Unspecified values are not
+    // written.
+    static void setColorAspectsIntoFormat(
+            const ColorAspects &aspects, sp<AMessage> &format, bool force = false);
+
+    // finds HDR metadata in format as HDRStaticInfo, defaulting them to 0.
+    // Return |true| if could find HDR metadata in format. Otherwise, return |false|.
+    static bool getHDRStaticInfoFromFormat(const sp<AMessage> &format, HDRStaticInfo *info);
+
+    // writes |info| into format.
+    static void setHDRStaticInfoIntoFormat(const HDRStaticInfo &info, sp<AMessage> &format);
+};
+
+inline static const char *asString(android::ColorUtils::ColorStandard i, const char *def = "??") {
+    using namespace android;
+    switch (i) {
+        case ColorUtils::kColorStandardUnspecified:          return "Unspecified";
+        case ColorUtils::kColorStandardBT709:                return "BT709";
+        case ColorUtils::kColorStandardBT601_625:            return "BT601_625";
+        case ColorUtils::kColorStandardBT601_625_Unadjusted: return "BT601_625_Unadjusted";
+        case ColorUtils::kColorStandardBT601_525:            return "BT601_525";
+        case ColorUtils::kColorStandardBT601_525_Unadjusted: return "BT601_525_Unadjusted";
+        case ColorUtils::kColorStandardBT2020:               return "BT2020";
+        case ColorUtils::kColorStandardBT2020Constant:       return "BT2020Constant";
+        case ColorUtils::kColorStandardBT470M:               return "BT470M";
+        case ColorUtils::kColorStandardFilm:                 return "Film";
+        default:                                            return def;
+    }
+}
+
+inline static const char *asString(android::ColorUtils::ColorTransfer i, const char *def = "??") {
+    using namespace android;
+    switch (i) {
+        case ColorUtils::kColorTransferUnspecified: return "Unspecified";
+        case ColorUtils::kColorTransferLinear:      return "Linear";
+        case ColorUtils::kColorTransferSRGB:        return "SRGB";
+        case ColorUtils::kColorTransferSMPTE_170M:  return "SMPTE_170M";
+        case ColorUtils::kColorTransferGamma22:     return "Gamma22";
+        case ColorUtils::kColorTransferGamma28:     return "Gamma28";
+        case ColorUtils::kColorTransferST2084:      return "ST2084";
+        case ColorUtils::kColorTransferHLG:         return "HLG";
+        default:                                   return def;
+    }
+}
+
+inline static const char *asString(android::ColorUtils::ColorRange i, const char *def = "??") {
+    using namespace android;
+    switch (i) {
+        case ColorUtils::kColorRangeUnspecified: return "Unspecified";
+        case ColorUtils::kColorRangeFull:        return "Full";
+        case ColorUtils::kColorRangeLimited:     return "Limited";
+        default:                                return def;
+    }
+}
+
+}  // namespace android
+
+#endif  // COLOR_UTILS_H_
+
diff --git a/media/libstagefright/include/foundation/Flagged.h b/media/libstagefright/include/foundation/Flagged.h
new file mode 100644
index 0000000..bf0afbf
--- /dev/null
+++ b/media/libstagefright/include/foundation/Flagged.h
@@ -0,0 +1,513 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef STAGEFRIGHT_FOUNDATION_FLAGGED_H_
+#define STAGEFRIGHT_FOUNDATION_FLAGGED_H_
+
+#include <media/stagefright/foundation/TypeTraits.h>
+
+namespace android {
+
+/**
+ * Flagged<T, Flag> is basically a specialized std::pair<Flag, T> that automatically optimizes out
+ * the flag if the wrapped type T is already flagged and we can combine the outer and inner flags.
+ *
+ * Flags can be queried/manipulated via flags() an setFlags(Flags). The wrapped value can be
+ * accessed via get(). This template is meant to be inherited by other utility/wrapper classes
+ * that need to store integral information along with the value.
+ *
+ * Users must specify the used bits (MASK) in the flags. Flag getters and setters will enforce this
+ * mask. _Flagged_helper::minMask<Flag> is provided to easily calculate a mask for a max value.
+ *
+ * E.g. adding a safe flag can be achieved like this:
+ *
+ *
+ * enum SafeFlags : uint32_t {
+ *   kUnsafe,
+ *   kSafe,
+ *   kSafeMask = _Flagged_helper::minMask(kSafe),
+ * };
+ * typedef Flagged<int32_t, SafeFlags, kSafeMask> safeInt32;
+ *
+ * safeInt32 a;
+ * a.setFlags(kSafe);
+ * a.get() = 15;
+ * EXPECT_EQ(a.flags(), kSafe);
+ * EXPECT_EQ(a.get(), 15);
+ *
+ *
+ * Flagged also supports lazy or calculated wrapping of already flagged types. Lazy wrapping is
+ * provided automatically (flags are automatically shared if possible, e.g. mask is shifted
+ * automatically to not overlap with used bits of the wrapped type's flags, and fall back to
+ * unshared version of the template.):
+ *
+ * enum OriginFlags : uint32_t {
+ *   kUnknown,
+ *   kConst,
+ *   kCalculated,
+ *   kComponent,
+ *   kApplication,
+ *   kFile,
+ *   kBinder,
+ *   kOriginMask = _Flagged_helper::minMask(kBinder),
+ * };
+ * typedef Flagged<safeInt32, OriginFlags, kOriginMask>
+ *          trackedSafeInt32;
+ *
+ * static_assert(sizeof(trackedSafeInt32) == sizeof(safeInt32), "");
+ *
+ * trackedSafeInt32 b(kConst, kSafe, 1);
+ * EXPECT_EQ(b.flags(), kConst);
+ * EXPECT_EQ(b.get().flags(), kSafe);
+ * EXPECT_EQ(b.get().get(), 1);
+ * b.setFlags(kCalculated);
+ * b.get().setFlags(overflow ? kUnsafe : kSafe);
+ *
+ * One can also choose to share some flag-bits with the wrapped class:
+ *
+ * enum ValidatedFlags : uint32_t {
+ *   kUnsafeV = kUnsafe,
+ *   kSafeV = kSafe,
+ *   kValidated = kSafe | 2,
+ *   kSharedMaskV = kSafeMask,
+ *   kValidatedMask = _Flagged_helper::minMask(kValidated),
+ * };
+ * typedef Flagged<safeInt32, ValidatedFlags, kValidatedMask, kSharedMaskV> validatedInt32;
+ *
+ * validatedInt32 v(kUnsafeV, kSafe, 10);
+ * EXPECT_EQ(v.flags(), kUnsafeV);
+ * EXPECT_EQ(v.get().flags(), kUnsafe);  // !kUnsafeV overrides kSafe
+ * EXPECT_EQ(v.get().get(), 10);
+ * v.setFlags(kValidated);
+ * EXPECT_EQ(v.flags(), kValidated);
+ * EXPECT_EQ(v.get().flags(), kSafe);
+ * v.get().setFlags(kUnsafe);
+ * EXPECT_EQ(v.flags(), 2);  // NOTE: sharing masks with enums allows strange situations to occur
+ */
+
+/**
+ * Helper class for Flagged support. Encapsulates common utilities used by all
+ * templated classes.
+ */
+struct _Flagged_helper {
+    /**
+     * Calculates the value with a given number of top-most bits set.
+     *
+     * This method may be called with a signed flag.
+     *
+     * \param num number of bits to set. This must be between 0 and the number of bits in Flag.
+     *
+     * \return the value where only the given number of top-most bits are set.
+     */
+    template<typename Flag>
+    static constexpr Flag topBits(int num) {
+        return Flag(num > 0 ?
+                    ~((Flag(1) << (sizeof(Flag) * 8 - is_signed_integral<Flag>::value - num)) - 1) :
+                    0);
+    }
+
+    /**
+     * Calculates the minimum mask required to cover a value. Used with the maximum enum value for
+     * an unsigned flag.
+     *
+     * \param maxValue maximum value to cover
+     * \param shift DO NO USE. used internally
+     *
+     * \return mask that can be used that covers the maximum value.
+     */
+    template<typename Flag>
+    static constexpr Flag minMask(Flag maxValue, int shift=sizeof(Flag) * 4) {
+        static_assert(is_unsigned_integral<Flag>::value,
+                      "this method only makes sense for unsigned flags");
+        return shift ? minMask<Flag>(Flag(maxValue | (maxValue >> shift)), shift >> 1) : maxValue;
+    }
+
+    /**
+     * Returns a value left-shifted by an argument as a potential constexpr.
+     *
+     * This method helps around the C-language limitation, when left-shift of a negative value with
+     * even 0 cannot be a constexpr.
+     *
+     * \param value value to shift
+     * \param shift amount of shift
+     * \returns the shifted value as an integral type
+     */
+    template<typename Flag, typename IntFlag = typename underlying_integral_type<Flag>::type>
+    static constexpr IntFlag lshift(Flag value, int shift) {
+        return shift ? value << shift : value;
+    }
+
+private:
+
+    /**
+     * Determines whether mask can be combined with base-mask for a given left shift.
+     *
+     * \param mask desired mask
+     * \param baseMask mask used by T or 0 if T is not flagged by Flag
+     * \param sharedMask desired shared mask (if this is non-0, this must be mask & baseMask)
+     * \param shift desired left shift to be used for mask
+     * \param baseShift left shift used by T or 0 if T is not flagged by Flag
+     * \param effectiveMask effective mask used by T or 0 if T is not flagged by Flag
+     *
+     * \return bool whether mask can be combined with baseMask using the desired values.
+     */
+    template<typename Flag, typename IntFlag=typename underlying_integral_type<Flag>::type>
+    static constexpr bool canCombine(
+            Flag mask, IntFlag baseMask, Flag sharedMask, int shift,
+            int baseShift, IntFlag effectiveMask) {
+        return
+            // verify that shift is valid and mask can be shifted
+            shift >= 0 && (mask & topBits<Flag>(shift)) == 0 &&
+
+            // verify that base mask is part of effective mask (sanity check on arguments)
+            (baseMask & ~(effectiveMask >> baseShift)) == 0 &&
+
+            // if sharing masks, shift must be the base's shift.
+            // verify that shared mask is the overlap of base mask and mask
+            (sharedMask ?
+                    ((sharedMask ^ (baseMask & mask)) == 0 &&
+                     shift == baseShift) :
+
+
+            // otherwise, verify that there is no overlap between mask and base's effective mask
+                    (mask & (effectiveMask >> shift)) == 0);
+    }
+
+
+    /**
+     * Calculates the minimum (left) shift required to combine a mask with the mask of an
+     * underlying type (T, also flagged by Flag).
+     *
+     * \param mask desired mask
+     * \param baseMask mask used by T or 0 if T is not flagged by Flag
+     * \param sharedMask desired shared mask (if this is non-0, this must be mask & baseMask)
+     * \param baseShift left shift used by T
+     * \param effectiveMask effective mask used by T
+     *
+     * \return a non-negative minimum left shift value if mask can be combined with baseMask,
+     *         or -1 if the masks cannot be combined. -2 if the input is invalid.
+     */
+    template<typename Flag,
+             typename IntFlag = typename underlying_integral_type<Flag>::type>
+    static constexpr int getShift(
+            Flag mask, IntFlag baseMask, Flag sharedMask, int baseShift, IntFlag effectiveMask) {
+        return
+            // baseMask must be part of the effective mask
+            (baseMask & ~(effectiveMask >> baseShift)) ? -2 :
+
+            // if sharing masks, shift must be base's shift. verify that shared mask is part of
+            // base mask and mask, and that desired mask still fits with base's shift value
+            sharedMask ?
+                    (canCombine(mask, baseMask, sharedMask, baseShift /* shift */,
+                                baseShift, effectiveMask) ? baseShift : -1) :
+
+            // otherwise, see if 0-shift works
+            ((mask & effectiveMask) == 0) ? 0 :
+
+            // otherwise, verify that mask can be shifted up
+            ((mask & topBits<Flag>(1)) || (mask < 0)) ? -1 :
+
+            incShift(getShift(Flag(mask << 1), baseMask /* unused */, sharedMask /* 0 */,
+                              baseShift /* unused */, effectiveMask));
+    }
+
+    /**
+     * Helper method that increments a non-negative (shift) value.
+     *
+     * This method is used to make it easier to create a constexpr for getShift.
+     *
+     * \param shift (shift) value to increment
+     *
+     * \return original shift if it was negative; otherwise, the shift incremented by one.
+     */
+    static constexpr int incShift(int shift) {
+        return shift + (shift >= 0);
+    }
+
+#ifdef FRIEND_TEST
+    FRIEND_TEST(FlaggedTest, _Flagged_helper_Test);
+#endif
+
+public:
+    /**
+     * Base class for all Flagged<T, Flag> classes.
+     *
+     * \note flagged types do not have a member variable for the mask used by the type. As such,
+     * they should be be cast to this base class.
+     *
+     * \todo can we replace this base class check with a static member check to remove possibility
+     * of cast?
+     */
+    template<typename Flag>
+    struct base {};
+
+    /**
+     * Type support utility that retrieves the mask of a class (T) if it is a type flagged by
+     * Flag (e.g. Flagged<T, Flag>).
+     *
+     * \note This retrieves 0 if T is a flagged class, that is not flagged by Flag or an equivalent
+     * underlying type.
+     *
+     * Generic implementation for a non-flagged class.
+     */
+    template<
+        typename T, typename Flag,
+        bool=std::is_base_of<base<typename underlying_integral_type<Flag>::type>, T>::value>
+    struct mask_of {
+        using IntFlag = typename underlying_integral_type<Flag>::type;
+        static constexpr IntFlag value = Flag(0); ///< mask of a potentially flagged class
+        static constexpr int shift = 0; ///<left shift of flags in a potentially flagged class
+        static constexpr IntFlag effective_value = IntFlag(0); ///<effective mask of flagged class
+    };
+
+    /**
+     * Type support utility that calculates the minimum (left) shift required to combine a mask
+     * with the mask of an underlying type T also flagged by Flag.
+     *
+     * \note if T is not flagged, not flagged by Flag, or the masks cannot be combined due to
+     * incorrect sharing or the flags not having enough bits, the minimum is -1.
+     *
+     * \param MASK desired mask
+     * \param SHARED_MASK desired shared mask (if this is non-0, T must be an type flagged by
+     *        Flag with a mask that has exactly these bits common with MASK)
+     */
+    template<typename T, typename Flag, Flag MASK, Flag SHARED_MASK>
+    struct min_shift {
+        /// minimum (left) shift required, or -1 if masks cannot be combined
+        static constexpr int value =
+            getShift(MASK, mask_of<T, Flag>::value, SHARED_MASK,
+                     mask_of<T, Flag>::shift, mask_of<T, Flag>::effective_value);
+    };
+
+    /**
+     * Type support utility that calculates whether the flags of T can be combined with MASK.
+     *
+     * \param MASK desired mask
+     * \param SHARED_MASK desired shared mask (if this is non-0, T MUST be an type flagged by
+     *        Flag with a mask that has exactly these bits common with MASK)
+     */
+    template<
+            typename T, typename Flag, Flag MASK,
+            Flag SHARED_MASK=Flag(0),
+            int SHIFT=min_shift<T, Flag, MASK, SHARED_MASK>::value>
+    struct can_combine {
+        using IntFlag = typename underlying_integral_type<Flag>::type;
+        /// true if this mask can be combined with T's existing flag. false otherwise.
+        static constexpr bool value =
+                std::is_base_of<base<IntFlag>, T>::value
+                        && canCombine(MASK, mask_of<T, Flag>::value, SHARED_MASK, SHIFT,
+                                      mask_of<T, Flag>::shift, mask_of<T, Flag>::effective_value);
+    };
+};
+
+/**
+ * Template specialization for the case when T is flagged by Flag or a compatible type.
+ */
+template<typename T, typename Flag>
+struct _Flagged_helper::mask_of<T, Flag, true> {
+    using IntType = typename underlying_integral_type<Flag>::type;
+    static constexpr IntType value = T::sFlagMask;
+    static constexpr int shift = T::sFlagShift;
+    static constexpr IntType effective_value = T::sEffectiveMask;
+};
+
+/**
+ * Main Flagged template that adds flags to an object of another type (in essence, creates a pair)
+ *
+ * Flag must be an integral type (enums are allowed).
+ *
+ * \note We could make SHARED_MASK be a boolean as it must be either 0 or MASK & base's mask, but we
+ * want it to be spelled out for safety.
+ *
+ * \param T type of object wrapped
+ * \param Flag type of flag
+ * \param MASK mask for the bits used in flag (before any shift)
+ * \param SHARED_MASK optional mask to be shared with T (if this is not zero, SHIFT must be 0, and
+ *        it must equal to MASK & T's mask)
+ * \param SHIFT optional left shift for MASK to combine with T's mask (or -1, if masks should not
+ *        be combined.)
+ */
+template<
+        typename T, typename Flag, Flag MASK, Flag SHARED_MASK=(Flag)0,
+        int SHIFT=_Flagged_helper::min_shift<T, Flag, MASK, SHARED_MASK>::value,
+        typename IntFlag=typename underlying_integral_type<Flag>::type,
+        bool=_Flagged_helper::can_combine<T, IntFlag, MASK, SHARED_MASK, SHIFT>::value>
+class Flagged : public _Flagged_helper::base<IntFlag> {
+    static_assert(SHARED_MASK == 0,
+                  "shared mask can only be used with common flag types "
+                  "and must be part of mask and mask of base type");
+    static_assert((_Flagged_helper::topBits<Flag>(SHIFT) & MASK) == 0, "SHIFT overflows MASK");
+
+    static constexpr Flag sFlagMask = MASK;  ///< the mask
+    static constexpr int sFlagShift = SHIFT > 0 ? SHIFT : 0; ///< the left shift applied to flags
+
+    friend struct _Flagged_helper;
+#ifdef FRIEND_TEST
+    static constexpr bool sFlagCombined = false;
+    FRIEND_TEST(FlaggedTest, _Flagged_helper_Test);
+#endif
+
+    T       mValue; ///< wrapped value
+    IntFlag mFlags; ///< flags
+
+protected:
+    /// The effective combined mask used by this class and any wrapped classes if the flags are
+    /// combined.
+    static constexpr IntFlag sEffectiveMask = _Flagged_helper::lshift(MASK, sFlagShift);
+
+    /**
+     * Helper method used by subsequent flagged wrappers to query flags. Returns the
+     * flags for a particular mask and left shift.
+     *
+     * \param mask bitmask to use
+     * \param shift left shifts to use
+     *
+     * \return the requested flags
+     */
+    inline constexpr IntFlag getFlagsHelper(IntFlag mask, int shift) const {
+        return (mFlags >> shift) & mask;
+    }
+
+    /**
+     * Helper method used by subsequent flagged wrappers to apply combined flags. Sets the flags
+     * in the bitmask using a particulare left shift.
+     *
+     * \param mask bitmask to use
+     * \param shift left shifts to use
+     * \param flags flags to update (any flags within the bitmask are updated to their value in this
+     *        argument)
+     */
+    inline void setFlagsHelper(IntFlag mask, int shift, IntFlag flags) {
+        mFlags = Flag((mFlags & ~(mask << shift)) | ((flags & mask) << shift));
+    }
+
+public:
+    /**
+     * Wrapper around base class constructor. These take the flags as their first
+     * argument and pass the rest of the arguments to the base class constructor.
+     *
+     * \param flags initial flags
+     */
+    template<typename ...Args>
+    constexpr Flagged(Flag flags, Args... args)
+        : mValue(std::forward<Args>(args)...),
+          mFlags(Flag(_Flagged_helper::lshift(flags & sFlagMask, sFlagShift))) { }
+
+    /** Gets the wrapped value as const. */
+    inline constexpr const T &get() const { return mValue; }
+
+    /** Gets the wrapped value. */
+    inline T &get() { return mValue; }
+
+    /** Gets the flags. */
+    constexpr Flag flags() const {
+        return Flag(getFlagsHelper(sFlagMask, sFlagShift));
+    }
+
+    /** Sets the flags. */
+    void setFlags(Flag flags) {
+        setFlagsHelper(sFlagMask, sFlagShift, flags);
+    }
+};
+
+/*
+ * TRICKY: we cannot implement the specialization as:
+ *
+ * class Flagged : base<Flag> {
+ *    T value;
+ * };
+ *
+ * Because T also inherits from base<Flag> and this runs into a compiler bug where
+ * sizeof(Flagged) > sizeof(T).
+ *
+ * Instead, we must inherit directly from the wrapped class
+ *
+ */
+#if 0
+template<
+        typename T, typename Flag, Flag MASK, Flag SHARED_MASK, int SHIFT>
+class Flagged<T, Flag, MASK, SHARED_MASK, SHIFT, true> : public _Flagged_helper::base<Flag> {
+private:
+    T mValue;
+};
+#else
+/**
+ * Specialization for the case when T is derived from Flagged<U, Flag> and flags can be combined.
+ */
+template<
+        typename T, typename Flag, Flag MASK, Flag SHARED_MASK, int SHIFT, typename IntFlag>
+class Flagged<T, Flag, MASK, SHARED_MASK, SHIFT, IntFlag, true> : private T {
+    static_assert(is_integral_or_enum<Flag>::value, "flag must be integer or enum");
+
+    static_assert(SHARED_MASK == 0 || SHIFT == 0, "cannot overlap masks when using SHIFT");
+    static_assert((SHARED_MASK & ~MASK) == 0, "shared mask must be part of the mask");
+    static_assert((SHARED_MASK & ~T::sEffectiveMask) == 0,
+                  "shared mask must be part of the base mask");
+    static_assert(SHARED_MASK == 0 || (~SHARED_MASK & (MASK & T::sEffectiveMask)) == 0,
+                  "mask and base mask can only overlap in shared mask");
+
+    static constexpr Flag sFlagMask = MASK;  ///< the mask
+    static constexpr int sFlagShift = SHIFT;  ///< the left shift applied to the flags
+
+#ifdef FRIEND_TEST
+    const static bool sFlagCombined = true;
+    FRIEND_TEST(FlaggedTest, _Flagged_helper_Test);
+#endif
+
+protected:
+    /// The effective combined mask used by this class and any wrapped classes if the flags are
+    /// combined.
+    static constexpr IntFlag sEffectiveMask = Flag((MASK << SHIFT) | T::sEffectiveMask);
+    friend struct _Flagged_helper;
+
+public:
+    /**
+     * Wrapper around base class constructor. These take the flags as their first
+     * argument and pass the rest of the arguments to the base class constructor.
+     *
+     * \param flags initial flags
+     */
+    template<typename ...Args>
+    constexpr Flagged(Flag flags, Args... args)
+        : T(std::forward<Args>(args)...) {
+        // we construct the base class first and apply the flags afterwards as
+        // base class may not have a constructor that takes flags even if it is derived from
+        // Flagged<U, Flag>
+        setFlags(flags);
+    }
+
+    /** Gets the wrapped value as const. */
+    inline constexpr T &get() const { return *this; }
+
+    /** Gets the wrapped value. */
+    inline T &get() { return *this; }
+
+    /** Gets the flags. */
+    Flag constexpr flags() const {
+        return Flag(this->getFlagsHelper(sFlagMask, sFlagShift));
+    }
+
+    /** Sets the flags. */
+    void setFlags(Flag flags) {
+        this->setFlagsHelper(sFlagMask, sFlagShift, flags);
+    }
+};
+#endif
+
+}  // namespace android
+
+#endif  // STAGEFRIGHT_FOUNDATION_FLAGGED_H_
+
diff --git a/include/media/stagefright/foundation/MediaBufferBase.h b/media/libstagefright/include/foundation/MediaBufferBase.h
similarity index 100%
rename from include/media/stagefright/foundation/MediaBufferBase.h
rename to media/libstagefright/include/foundation/MediaBufferBase.h
diff --git a/include/media/stagefright/foundation/Mutexed.h b/media/libstagefright/include/foundation/Mutexed.h
similarity index 100%
rename from include/media/stagefright/foundation/Mutexed.h
rename to media/libstagefright/include/foundation/Mutexed.h
diff --git a/include/media/stagefright/foundation/ParsedMessage.h b/media/libstagefright/include/foundation/ParsedMessage.h
similarity index 100%
rename from include/media/stagefright/foundation/ParsedMessage.h
rename to media/libstagefright/include/foundation/ParsedMessage.h
diff --git a/media/libstagefright/include/foundation/TypeTraits.h b/media/libstagefright/include/foundation/TypeTraits.h
new file mode 100644
index 0000000..1250e9b
--- /dev/null
+++ b/media/libstagefright/include/foundation/TypeTraits.h
@@ -0,0 +1,224 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef STAGEFRIGHT_FOUNDATION_TYPE_TRAITS_H_
+#define STAGEFRIGHT_FOUNDATION_TYPE_TRAITS_H_
+
+#include <type_traits>
+
+namespace android {
+
+/**
+ * std::is_signed, is_unsigned and is_integral does not consider enums even though the standard
+ * considers them integral. Create modified versions of these here. Also create a wrapper around
+ * std::underlying_type that does not require checking if the type is an enum.
+ */
+
+/**
+ * Type support utility class to check if a type is an integral type or an enum.
+ */
+template<typename T>
+struct is_integral_or_enum
+    : std::integral_constant<bool, std::is_integral<T>::value || std::is_enum<T>::value> { };
+
+/**
+ * Type support utility class to get the underlying std::is_integral supported type for a type.
+ * This returns the underlying type for enums, and the same type for types covered by
+ * std::is_integral.
+ *
+ * This is also used as a conditional to return an alternate type if the template param is not
+ * an integral or enum type (as in underlying_integral_type<T, TypeIfNotEnumOrIntegral>::type).
+ */
+template<typename T,
+        typename U=typename std::enable_if<is_integral_or_enum<T>::value>::type,
+        bool=std::is_enum<T>::value,
+        bool=std::is_integral<T>::value>
+struct underlying_integral_type {
+    static_assert(!std::is_enum<T>::value, "T should not be enum here");
+    static_assert(!std::is_integral<T>::value, "T should not be integral here");
+    typedef U type;
+};
+
+/** Specialization for enums. */
+template<typename T, typename U>
+struct underlying_integral_type<T, U, true, false> {
+    static_assert(std::is_enum<T>::value, "T should be enum here");
+    static_assert(!std::is_integral<T>::value, "T should not be integral here");
+    typedef typename std::underlying_type<T>::type type;
+};
+
+/** Specialization for non-enum std-integral types. */
+template<typename T, typename U>
+struct underlying_integral_type<T, U, false, true> {
+    static_assert(!std::is_enum<T>::value, "T should not be enum here");
+    static_assert(std::is_integral<T>::value, "T should be integral here");
+    typedef T type;
+};
+
+/**
+ * Type support utility class to check if the underlying integral type is signed.
+ */
+template<typename T>
+struct is_signed_integral
+    : std::integral_constant<bool, std::is_signed<
+            typename underlying_integral_type<T, unsigned>::type>::value> { };
+
+/**
+ * Type support utility class to check if the underlying integral type is unsigned.
+ */
+template<typename T>
+struct is_unsigned_integral
+    : std::integral_constant<bool, std::is_unsigned<
+            typename underlying_integral_type<T, signed>::type>::value> {
+};
+
+/**
+ * Type support relationship query template.
+ *
+ * If T occurs as one of the types in Us with the same const-volatile qualifications, provides the
+ * member constant |value| equal to true. Otherwise value is false.
+ */
+template<typename T, typename ...Us>
+struct is_one_of;
+
+/// \if 0
+/**
+ * Template specialization when first type matches the searched type.
+ */
+template<typename T, typename ...Us>
+struct is_one_of<T, T, Us...> : std::true_type {};
+
+/**
+ * Template specialization when first type does not match the searched type.
+ */
+template<typename T, typename U, typename ...Us>
+struct is_one_of<T, U, Us...> : is_one_of<T, Us...> {};
+
+/**
+ * Template specialization when there are no types to search.
+ */
+template<typename T>
+struct is_one_of<T> : std::false_type {};
+/// \endif
+
+/**
+ * Type support relationship query template.
+ *
+ * If all types in Us are unique, provides the member constant |value| equal to true.
+ * Otherwise value is false.
+ */
+template<typename ...Us>
+struct are_unique;
+
+/// \if 0
+/**
+ * Template specialization when there are no types.
+ */
+template<>
+struct are_unique<> : std::true_type {};
+
+/**
+ * Template specialization when there is at least one type to check.
+ */
+template<typename T, typename ...Us>
+struct are_unique<T, Us...>
+    : std::integral_constant<bool, are_unique<Us...>::value && !is_one_of<T, Us...>::value> {};
+/// \endif
+
+/// \if 0
+template<size_t Base, typename T, typename ...Us>
+struct _find_first_impl;
+
+/**
+ * Template specialization when there are no types to search.
+ */
+template<size_t Base, typename T>
+struct _find_first_impl<Base, T> : std::integral_constant<size_t, 0> {};
+
+/**
+ * Template specialization when T is the first type in Us.
+ */
+template<size_t Base, typename T, typename ...Us>
+struct _find_first_impl<Base, T, T, Us...> : std::integral_constant<size_t, Base> {};
+
+/**
+ * Template specialization when T is not the first type in Us.
+ */
+template<size_t Base, typename T, typename U, typename ...Us>
+struct _find_first_impl<Base, T, U, Us...>
+    : std::integral_constant<size_t, _find_first_impl<Base + 1, T, Us...>::value> {};
+
+/// \endif
+
+/**
+ * Type support relationship query template.
+ *
+ * If T occurs in Us, index is the 1-based left-most index of T in Us. Otherwise, index is 0.
+ */
+template<typename T, typename ...Us>
+struct find_first {
+    static constexpr size_t index = _find_first_impl<1, T, Us...>::value;
+};
+
+/// \if 0
+/**
+ * Helper class for find_first_convertible_to template.
+ *
+ * Adds a base index.
+ */
+template<size_t Base, typename T, typename ...Us>
+struct _find_first_convertible_to_helper;
+
+/**
+ * Template specialization for when there are more types to consider
+ */
+template<size_t Base, typename T, typename U, typename ...Us>
+struct _find_first_convertible_to_helper<Base, T, U, Us...> {
+    static constexpr size_t index =
+        std::is_convertible<T, U>::value ? Base :
+                _find_first_convertible_to_helper<Base + 1, T, Us...>::index;
+    typedef typename std::conditional<
+        std::is_convertible<T, U>::value, U,
+        typename _find_first_convertible_to_helper<Base + 1, T, Us...>::type>::type type;
+};
+
+/**
+ * Template specialization for when there are no more types to consider
+ */
+template<size_t Base, typename T>
+struct _find_first_convertible_to_helper<Base, T> {
+    static constexpr size_t index = 0;
+    typedef void type;
+};
+
+/// \endif
+
+/**
+ * Type support template that returns the type that T can be implicitly converted into, and its
+ * index, from a list of other types (Us).
+ *
+ * Returns index of 0 and type of void if there are no convertible types.
+ *
+ * \param T type that is converted
+ * \param Us types into which the conversion is considered
+ */
+template<typename T, typename ...Us>
+struct find_first_convertible_to : public _find_first_convertible_to_helper<1, T, Us...> { };
+
+}  // namespace android
+
+#endif  // STAGEFRIGHT_FOUNDATION_TYPE_TRAITS_H_
+
diff --git a/include/media/stagefright/foundation/base64.h b/media/libstagefright/include/foundation/base64.h
similarity index 100%
rename from include/media/stagefright/foundation/base64.h
rename to media/libstagefright/include/foundation/base64.h
diff --git a/include/media/stagefright/foundation/hexdump.h b/media/libstagefright/include/foundation/hexdump.h
similarity index 100%
rename from include/media/stagefright/foundation/hexdump.h
rename to media/libstagefright/include/foundation/hexdump.h
diff --git a/media/libstagefright/matroska/Android.mk b/media/libstagefright/matroska/Android.mk
index 89d7ff2..7de5dbe 100644
--- a/media/libstagefright/matroska/Android.mk
+++ b/media/libstagefright/matroska/Android.mk
@@ -10,8 +10,8 @@
         $(TOP)/frameworks/av/media/libstagefright/include \
 
 LOCAL_CFLAGS += -Wno-multichar -Werror -Wall
-LOCAL_CLANG := true
-LOCAL_SANITIZE := unsigned-integer-overflow signed-integer-overflow
+LOCAL_SANITIZE := unsigned-integer-overflow signed-integer-overflow cfi
+LOCAL_SANITIZE_DIAG := cfi
 
 LOCAL_SHARED_LIBRARIES := libmedia
 
diff --git a/media/libstagefright/matroska/MatroskaExtractor.cpp b/media/libstagefright/matroska/MatroskaExtractor.cpp
index 8e82486..81179d1 100644
--- a/media/libstagefright/matroska/MatroskaExtractor.cpp
+++ b/media/libstagefright/matroska/MatroskaExtractor.cpp
@@ -377,6 +377,16 @@
 
     *actualFrameTimeUs = -1ll;
 
+    if (seekTimeUs > INT64_MAX / 1000ll ||
+            seekTimeUs < INT64_MIN / 1000ll ||
+            (mExtractor->mSeekPreRollNs > 0 &&
+                    (seekTimeUs * 1000ll) < INT64_MIN + mExtractor->mSeekPreRollNs) ||
+            (mExtractor->mSeekPreRollNs < 0 &&
+                    (seekTimeUs * 1000ll) > INT64_MAX + mExtractor->mSeekPreRollNs)) {
+        ALOGE("cannot seek to %lld", (long long) seekTimeUs);
+        return;
+    }
+
     const int64_t seekTimeNs = seekTimeUs * 1000ll - mExtractor->mSeekPreRollNs;
 
     mkvparser::Segment* const pSegment = mExtractor->mSegment;
@@ -605,16 +615,27 @@
     int64_t timeUs = mBlockIter.blockTimeUs();
 
     for (int i = 0; i < block->GetFrameCount(); ++i) {
+        MatroskaExtractor::TrackInfo *trackInfo = &mExtractor->mTracks.editItemAt(mTrackIndex);
         const mkvparser::Block::Frame &frame = block->GetFrame(i);
+        size_t len = frame.len;
+        if (SIZE_MAX - len < trackInfo->mHeaderLen) {
+            return ERROR_MALFORMED;
+        }
 
-        MediaBuffer *mbuf = new MediaBuffer(frame.len);
+        len += trackInfo->mHeaderLen;
+        MediaBuffer *mbuf = new MediaBuffer(len);
+        uint8_t *data = static_cast<uint8_t *>(mbuf->data());
+        if (trackInfo->mHeader) {
+            memcpy(data, trackInfo->mHeader, trackInfo->mHeaderLen);
+        }
+
         mbuf->meta_data()->setInt64(kKeyTime, timeUs);
         mbuf->meta_data()->setInt32(kKeyIsSyncFrame, block->IsKey());
 
-        status_t err = frame.Read(mExtractor->mReader, static_cast<uint8_t *>(mbuf->data()));
+        status_t err = frame.Read(mExtractor->mReader, data + trackInfo->mHeaderLen);
         if (err == OK
                 && mExtractor->mIsWebm
-                && mExtractor->mTracks.itemAt(mTrackIndex).mEncrypted) {
+                && trackInfo->mEncrypted) {
             err = setWebmBlockCryptoInfo(mbuf);
         }
 
@@ -1164,6 +1185,42 @@
     }
 }
 
+status_t MatroskaExtractor::initTrackInfo(
+        const mkvparser::Track *track, const sp<MetaData> &meta, TrackInfo *trackInfo) {
+    trackInfo->mTrackNum = track->GetNumber();
+    trackInfo->mMeta = meta;
+    trackInfo->mExtractor = this;
+    trackInfo->mEncrypted = false;
+    trackInfo->mHeader = NULL;
+    trackInfo->mHeaderLen = 0;
+
+    for(size_t i = 0; i < track->GetContentEncodingCount(); i++) {
+        const mkvparser::ContentEncoding *encoding = track->GetContentEncodingByIndex(i);
+        for(size_t j = 0; j < encoding->GetEncryptionCount(); j++) {
+            const mkvparser::ContentEncoding::ContentEncryption *encryption;
+            encryption = encoding->GetEncryptionByIndex(j);
+            trackInfo->mMeta->setData(kKeyCryptoKey, 0, encryption->key_id, encryption->key_id_len);
+            trackInfo->mEncrypted = true;
+            break;
+        }
+
+        for(size_t j = 0; j < encoding->GetCompressionCount(); j++) {
+            const mkvparser::ContentEncoding::ContentCompression *compression;
+            compression = encoding->GetCompressionByIndex(j);
+            ALOGV("compression algo %llu settings_len %lld",
+                compression->algo, compression->settings_len);
+            if (compression->algo == 3
+                    && compression->settings
+                    && compression->settings_len > 0) {
+                trackInfo->mHeader = compression->settings;
+                trackInfo->mHeaderLen = compression->settings_len;
+            }
+        }
+    }
+
+    return OK;
+}
+
 void MatroskaExtractor::addTracks() {
     const mkvparser::Tracks *tracks = mSegment->GetTracks();
 
@@ -1231,8 +1288,51 @@
                     continue;
                 }
 
-                meta->setInt32(kKeyWidth, vtrack->GetWidth());
-                meta->setInt32(kKeyHeight, vtrack->GetHeight());
+                const long long width = vtrack->GetWidth();
+                const long long height = vtrack->GetHeight();
+                if (width <= 0 || width > INT32_MAX) {
+                    ALOGW("track width exceeds int32_t, %lld", width);
+                    continue;
+                }
+                if (height <= 0 || height > INT32_MAX) {
+                    ALOGW("track height exceeds int32_t, %lld", height);
+                    continue;
+                }
+                meta->setInt32(kKeyWidth, (int32_t)width);
+                meta->setInt32(kKeyHeight, (int32_t)height);
+
+                // setting display width/height is optional
+                const long long displayUnit = vtrack->GetDisplayUnit();
+                const long long displayWidth = vtrack->GetDisplayWidth();
+                const long long displayHeight = vtrack->GetDisplayHeight();
+                if (displayWidth > 0 && displayWidth <= INT32_MAX
+                        && displayHeight > 0 && displayHeight <= INT32_MAX) {
+                    switch (displayUnit) {
+                    case 0: // pixels
+                        meta->setInt32(kKeyDisplayWidth, (int32_t)displayWidth);
+                        meta->setInt32(kKeyDisplayHeight, (int32_t)displayHeight);
+                        break;
+                    case 1: // centimeters
+                    case 2: // inches
+                    case 3: // aspect ratio
+                    {
+                        // Physical layout size is treated the same as aspect ratio.
+                        // Note: displayWidth and displayHeight are never zero as they are
+                        // checked in the if above.
+                        const long long computedWidth =
+                                std::max(width, height * displayWidth / displayHeight);
+                        const long long computedHeight =
+                                std::max(height, width * displayHeight / displayWidth);
+                        if (computedWidth <= INT32_MAX && computedHeight <= INT32_MAX) {
+                            meta->setInt32(kKeyDisplayWidth, (int32_t)computedWidth);
+                            meta->setInt32(kKeyDisplayHeight, (int32_t)computedHeight);
+                        }
+                        break;
+                    }
+                    default: // unknown display units, perhaps future version of spec.
+                        break;
+                    }
+                }
 
                 getColorInformation(vtrack, meta);
 
@@ -1288,21 +1388,7 @@
         mTracks.push();
         size_t n = mTracks.size() - 1;
         TrackInfo *trackInfo = &mTracks.editItemAt(n);
-        trackInfo->mTrackNum = track->GetNumber();
-        trackInfo->mMeta = meta;
-        trackInfo->mExtractor = this;
-
-        trackInfo->mEncrypted = false;
-        for(size_t i = 0; i < track->GetContentEncodingCount() && !trackInfo->mEncrypted; i++) {
-            const mkvparser::ContentEncoding *encoding = track->GetContentEncodingByIndex(i);
-            for(size_t j = 0; j < encoding->GetEncryptionCount(); j++) {
-                const mkvparser::ContentEncoding::ContentEncryption *encryption;
-                encryption = encoding->GetEncryptionByIndex(j);
-                meta->setData(kKeyCryptoKey, 0, encryption->key_id, encryption->key_id_len);
-                trackInfo->mEncrypted = true;
-                break;
-            }
-        }
+        initTrackInfo(track, meta, trackInfo);
 
         if (!strcmp("V_MPEG4/ISO/AVC", codecID) && codecPrivateSize == 0) {
             // Attempt to recover from AVC track without codec private data
diff --git a/media/libstagefright/matroska/MatroskaExtractor.h b/media/libstagefright/matroska/MatroskaExtractor.h
index 588bd39..19775ce 100644
--- a/media/libstagefright/matroska/MatroskaExtractor.h
+++ b/media/libstagefright/matroska/MatroskaExtractor.h
@@ -63,6 +63,12 @@
         const MatroskaExtractor *mExtractor;
         Vector<const mkvparser::CuePoint*> mCuePoints;
 
+        // mHeader points to memory managed by mkvparser;
+        // mHeader would be deleted when mSegment is deleted
+        // in ~MatroskaExtractor.
+        unsigned char *mHeader;
+        size_t mHeaderLen;
+
         const mkvparser::Track* getTrack() const;
         const mkvparser::CuePoint::TrackPosition *find(long long timeNs) const;
     };
@@ -79,6 +85,7 @@
     int64_t mSeekPreRollNs;
 
     status_t synthesizeAVCC(TrackInfo *trackInfo, size_t index);
+    status_t initTrackInfo(const mkvparser::Track *track, const sp<MetaData> &meta, TrackInfo *trackInfo);
     void addTracks();
     void findThumbnails();
     void getColorInformation(const mkvparser::VideoTrack *vtrack, sp<MetaData> &meta);
diff --git a/media/libstagefright/mpeg2ts/ATSParser.cpp b/media/libstagefright/mpeg2ts/ATSParser.cpp
index 844479e..47caf61 100644
--- a/media/libstagefright/mpeg2ts/ATSParser.cpp
+++ b/media/libstagefright/mpeg2ts/ATSParser.cpp
@@ -17,13 +17,14 @@
 //#define LOG_NDEBUG 0
 #define LOG_TAG "ATSParser"
 #include <utils/Log.h>
-
 #include "ATSParser.h"
-
 #include "AnotherPacketSource.h"
+#include "CasManager.h"
 #include "ESQueue.h"
 #include "include/avc_utils.h"
 
+#include <android/media/IDescrambler.h>
+#include <binder/MemoryDealer.h>
 #include <media/stagefright/foundation/ABitReader.h>
 #include <media/stagefright/foundation/ABuffer.h>
 #include <media/stagefright/foundation/ADebug.h>
@@ -40,6 +41,8 @@
 #include <inttypes.h>
 
 namespace android {
+using binder::Status;
+using MediaDescrambler::DescrambleInfo;
 
 // I want the expression "y" evaluated even if verbose logging is off.
 #define MY_LOGV(x, y) \
@@ -60,6 +63,8 @@
     bool parsePID(
             unsigned pid, unsigned continuity_counter,
             unsigned payload_unit_start_indicator,
+            unsigned transport_scrambling_control,
+            unsigned random_access_indicator,
             ABitReader *br, status_t *err, SyncEvent *event);
 
     void signalDiscontinuity(
@@ -90,10 +95,21 @@
         return mParser->mFlags;
     }
 
+    sp<CasManager> casManager() const {
+        return mParser->mCasManager;
+    }
+
+    uint64_t firstPTS() const {
+        return mFirstPTS;
+    }
+
+    void updateCasSessions();
+
 private:
     struct StreamInfo {
         unsigned mType;
         unsigned mPID;
+        int32_t mCASystemId;
     };
 
     ATSParser *mParser;
@@ -106,6 +122,8 @@
 
     status_t parseProgramMap(ABitReader *br);
     int64_t recoverPTS(uint64_t PTS_33bit);
+    bool findCADescriptor(
+            ABitReader *br, unsigned infoLength, CADescriptor *caDescriptor);
     bool switchPIDs(const Vector<StreamInfo> &infos);
 
     DISALLOW_EVIL_CONSTRUCTORS(Program);
@@ -115,18 +133,25 @@
     Stream(Program *program,
            unsigned elementaryPID,
            unsigned streamType,
-           unsigned PCR_PID);
+           unsigned PCR_PID,
+           int32_t CA_system_ID);
 
     unsigned type() const { return mStreamType; }
     unsigned pid() const { return mElementaryPID; }
     void setPID(unsigned pid) { mElementaryPID = pid; }
 
+    void setCasSession(
+            const sp<IDescrambler> &descrambler,
+            const std::vector<uint8_t> &sessionId);
+
     // Parse the payload and set event when PES with a sync frame is detected.
     // This method knows when a PES starts; so record mPesStartOffsets in that
     // case.
     status_t parse(
             unsigned continuity_counter,
             unsigned payload_unit_start_indicator,
+            unsigned transport_scrambling_control,
+            unsigned random_access_indicator,
             ABitReader *br,
             SyncEvent *event);
 
@@ -135,6 +160,7 @@
 
     void signalEOS(status_t finalResult);
 
+    SourceType getSourceType();
     sp<MediaSource> getSource(SourceType type);
 
     bool isAudio() const;
@@ -145,6 +171,11 @@
     virtual ~Stream();
 
 private:
+    struct SubSampleInfo {
+        size_t subSampleSize;
+        unsigned transport_scrambling_mode;
+        unsigned random_access_indicator;
+    };
     Program *mProgram;
     unsigned mElementaryPID;
     unsigned mStreamType;
@@ -161,10 +192,26 @@
 
     ElementaryStreamQueue *mQueue;
 
+    bool mScrambled;
+    sp<IMemory> mMem;
+    sp<MemoryDealer> mDealer;
+    sp<ABuffer> mDescrambledBuffer;
+    List<SubSampleInfo> mSubSamples;
+    sp<IDescrambler> mDescrambler;
+
     // Flush accumulated payload if necessary --- i.e. at EOS or at the start of
     // another payload. event is set if the flushed payload is PES with a sync
     // frame.
     status_t flush(SyncEvent *event);
+
+    // Flush accumulated payload for scrambled streams if necessary --- i.e. at
+    // EOS or at the start of another payload. event is set if the flushed
+    // payload is PES with a sync frame.
+    status_t flushScrambled(SyncEvent *event);
+
+    // Check if a PES packet is scrambled at PES level.
+    uint32_t getPesScramblingControl(ABitReader *br, int32_t *pesOffset);
+
     // Strip and parse PES headers and pass remaining payload into onPayload
     // with parsed metadata. event is set if the PES contains a sync frame.
     status_t parsePES(ABitReader *br, SyncEvent *event);
@@ -174,7 +221,13 @@
     // and timestamp of the packet.
     void onPayloadData(
             unsigned PTS_DTS_flags, uint64_t PTS, uint64_t DTS,
-            const uint8_t *data, size_t size, SyncEvent *event);
+            unsigned PES_scrambling_control,
+            const uint8_t *data, size_t size,
+            int32_t payloadOffset, SyncEvent *event);
+
+    // Ensure internal buffers can hold specified size, and will re-allocate
+    // as needed.
+    void ensureBufferCapacity(size_t size);
 
     DISALLOW_EVIL_CONSTRUCTORS(Stream);
 };
@@ -208,11 +261,12 @@
     : mHasReturnedData(false), mOffset(offset), mTimeUs(0) {}
 
 void ATSParser::SyncEvent::init(off64_t offset, const sp<MediaSource> &source,
-        int64_t timeUs) {
+        int64_t timeUs, SourceType type) {
     mHasReturnedData = true;
     mOffset = offset;
     mMediaSource = source;
     mTimeUs = timeUs;
+    mType = type;
 }
 
 void ATSParser::SyncEvent::reset() {
@@ -248,6 +302,8 @@
 bool ATSParser::Program::parsePID(
         unsigned pid, unsigned continuity_counter,
         unsigned payload_unit_start_indicator,
+        unsigned transport_scrambling_control,
+        unsigned random_access_indicator,
         ABitReader *br, status_t *err, SyncEvent *event) {
     *err = OK;
 
@@ -257,7 +313,11 @@
     }
 
     *err = mStreams.editValueAt(index)->parse(
-            continuity_counter, payload_unit_start_indicator, br, event);
+            continuity_counter,
+            payload_unit_start_indicator,
+            transport_scrambling_control,
+            random_access_indicator,
+            br, event);
 
     return true;
 }
@@ -353,6 +413,38 @@
     return success;
 }
 
+bool ATSParser::Program::findCADescriptor(
+        ABitReader *br, unsigned infoLength,
+        ATSParser::CADescriptor *caDescriptor) {
+    bool found = false;
+    while (infoLength > 2) {
+        unsigned descriptor_tag = br->getBits(8);
+        ALOGV("      tag = 0x%02x", descriptor_tag);
+
+        unsigned descriptor_length = br->getBits(8);
+        ALOGV("      len = %u", descriptor_length);
+
+        infoLength -= 2;
+        if (descriptor_length > infoLength) {
+            break;
+        }
+        if (descriptor_tag == 9 && descriptor_length >= 4) {
+            found = true;
+            caDescriptor->mSystemID = br->getBits(16);
+            caDescriptor->mPID = br->getBits(16) & 0x1fff;
+            infoLength -= 4;
+            caDescriptor->mPrivateData.assign(
+                    br->data(), br->data() + descriptor_length - 4);
+            break;
+        } else {
+            infoLength -= descriptor_length;
+            br->skipBits(descriptor_length * 8);
+        }
+    }
+    br->skipBits(infoLength * 8);
+    return found;
+}
+
 status_t ATSParser::Program::parseProgramMap(ABitReader *br) {
     unsigned table_id = br->getBits(8);
     ALOGV("  table_id = %u", table_id);
@@ -389,7 +481,13 @@
     unsigned program_info_length = br->getBits(12);
     ALOGV("  program_info_length = %u", program_info_length);
 
-    br->skipBits(program_info_length * 8);  // skip descriptors
+    // descriptors
+    CADescriptor programCA;
+    bool hasProgramCA = findCADescriptor(br, program_info_length, &programCA);
+    if (hasProgramCA && !mParser->mCasManager->addProgram(
+            mProgramNumber, programCA)) {
+        return ERROR_MALFORMED;
+    }
 
     Vector<StreamInfo> infos;
 
@@ -413,28 +511,17 @@
         unsigned ES_info_length = br->getBits(12);
         ALOGV("    ES_info_length = %u", ES_info_length);
 
-#if 0
-        br->skipBits(ES_info_length * 8);  // skip descriptors
-#else
-        unsigned info_bytes_remaining = ES_info_length;
-        while (info_bytes_remaining >= 2) {
-            MY_LOGV("      tag = 0x%02x", br->getBits(8));
-
-            unsigned descLength = br->getBits(8);
-            ALOGV("      len = %u", descLength);
-
-            if (info_bytes_remaining < descLength) {
-                return ERROR_MALFORMED;
-            }
-            br->skipBits(descLength * 8);
-
-            info_bytes_remaining -= descLength + 2;
+        CADescriptor streamCA;
+        bool hasStreamCA = findCADescriptor(br, ES_info_length, &streamCA);
+        if (hasStreamCA && !mParser->mCasManager->addStream(
+                mProgramNumber, elementaryPID, streamCA)) {
+            return ERROR_MALFORMED;
         }
-#endif
-
         StreamInfo info;
         info.mType = streamType;
         info.mPID = elementaryPID;
+        info.mCASystemId = hasProgramCA ? programCA.mSystemID :
+                           hasStreamCA ? streamCA.mSystemID  : -1;
         infos.push(info);
 
         infoBytesRemaining -= 5 + ES_info_length;
@@ -484,19 +571,29 @@
         }
     }
 
+    bool isAddingScrambledStream = false;
     for (size_t i = 0; i < infos.size(); ++i) {
         StreamInfo &info = infos.editItemAt(i);
 
+        if (mParser->mCasManager->isCAPid(info.mPID)) {
+            // skip CA streams (EMM/ECM)
+            continue;
+        }
         ssize_t index = mStreams.indexOfKey(info.mPID);
 
         if (index < 0) {
             sp<Stream> stream = new Stream(
-                    this, info.mPID, info.mType, PCR_PID);
+                    this, info.mPID, info.mType, PCR_PID, info.mCASystemId);
 
+            isAddingScrambledStream |= info.mCASystemId >= 0;
             mStreams.add(info.mPID, stream);
         }
     }
 
+    if (isAddingScrambledStream) {
+        ALOGI("Receiving scrambled streams without descrambler!");
+        return ERROR_DRM_DECRYPT_UNIT_NOT_INITIALIZED;
+    }
     return OK;
 }
 
@@ -580,13 +677,27 @@
     return timeUs;
 }
 
+void ATSParser::Program::updateCasSessions() {
+    for (size_t i = 0; i < mStreams.size(); ++i) {
+        sp<Stream> &stream = mStreams.editValueAt(i);
+        sp<IDescrambler> descrambler;
+        std::vector<uint8_t> sessionId;
+        if (mParser->mCasManager->getCasSession(
+                mProgramNumber, stream->pid(), &descrambler, &sessionId)) {
+            stream->setCasSession(descrambler, sessionId);
+        }
+    }
+}
+
 ////////////////////////////////////////////////////////////////////////////////
+static const size_t kInitialStreamBufferSize = 192 * 1024;
 
 ATSParser::Stream::Stream(
         Program *program,
         unsigned elementaryPID,
         unsigned streamType,
-        unsigned PCR_PID)
+        unsigned PCR_PID,
+        int32_t CA_system_ID)
     : mProgram(program),
       mElementaryPID(elementaryPID),
       mStreamType(streamType),
@@ -595,54 +706,71 @@
       mPayloadStarted(false),
       mEOSReached(false),
       mPrevPTS(0),
-      mQueue(NULL) {
+      mQueue(NULL),
+      mScrambled(CA_system_ID >= 0) {
+    ALOGV("new stream PID 0x%02x, type 0x%02x, scrambled %d",
+            elementaryPID, streamType, mScrambled);
+
+    uint32_t flags = (isVideo() && mScrambled) ?
+            ElementaryStreamQueue::kFlag_ScrambledData : 0;
+
+    ElementaryStreamQueue::Mode mode = ElementaryStreamQueue::INVALID;
+
     switch (mStreamType) {
         case STREAMTYPE_H264:
-            mQueue = new ElementaryStreamQueue(
-                    ElementaryStreamQueue::H264,
-                    (mProgram->parserFlags() & ALIGNED_VIDEO_DATA)
-                        ? ElementaryStreamQueue::kFlag_AlignedData : 0);
+            mode = ElementaryStreamQueue::H264;
+            flags |= (mProgram->parserFlags() & ALIGNED_VIDEO_DATA) ?
+                    ElementaryStreamQueue::kFlag_AlignedData : 0;
             break;
+
         case STREAMTYPE_MPEG2_AUDIO_ADTS:
-            mQueue = new ElementaryStreamQueue(ElementaryStreamQueue::AAC);
+            mode = ElementaryStreamQueue::AAC;
             break;
+
         case STREAMTYPE_MPEG1_AUDIO:
         case STREAMTYPE_MPEG2_AUDIO:
-            mQueue = new ElementaryStreamQueue(
-                    ElementaryStreamQueue::MPEG_AUDIO);
+            mode = ElementaryStreamQueue::MPEG_AUDIO;
             break;
 
         case STREAMTYPE_MPEG1_VIDEO:
         case STREAMTYPE_MPEG2_VIDEO:
-            mQueue = new ElementaryStreamQueue(
-                    ElementaryStreamQueue::MPEG_VIDEO);
+            mode = ElementaryStreamQueue::MPEG_VIDEO;
             break;
 
         case STREAMTYPE_MPEG4_VIDEO:
-            mQueue = new ElementaryStreamQueue(
-                    ElementaryStreamQueue::MPEG4_VIDEO);
+            mode = ElementaryStreamQueue::MPEG4_VIDEO;
             break;
 
         case STREAMTYPE_LPCM_AC3:
         case STREAMTYPE_AC3:
-            mQueue = new ElementaryStreamQueue(
-                    ElementaryStreamQueue::AC3);
+            mode = ElementaryStreamQueue::AC3;
             break;
 
         case STREAMTYPE_METADATA:
-            mQueue = new ElementaryStreamQueue(
-                    ElementaryStreamQueue::METADATA);
+            mode = ElementaryStreamQueue::METADATA;
             break;
 
         default:
-            break;
+            ALOGE("stream PID 0x%02x has invalid stream type 0x%02x",
+                    elementaryPID, streamType);
+            return;
     }
 
-    ALOGV("new stream PID 0x%02x, type 0x%02x", elementaryPID, streamType);
+    mQueue = new ElementaryStreamQueue(mode, flags);
 
     if (mQueue != NULL) {
-        mBuffer = new ABuffer(192 * 1024);
-        mBuffer->setRange(0, 0);
+        ensureBufferCapacity(kInitialStreamBufferSize);
+
+        if (mScrambled && (isAudio() || isVideo())) {
+            // Set initial format to scrambled
+            sp<MetaData> meta = new MetaData();
+            meta->setCString(kKeyMIMEType,
+                    isAudio() ? MEDIA_MIMETYPE_AUDIO_SCRAMBLED
+                              : MEDIA_MIMETYPE_VIDEO_SCRAMBLED);
+            // for DrmInitData
+            meta->setData(kKeyCas, 0, &CA_system_ID, sizeof(CA_system_ID));
+            mSource = new AnotherPacketSource(meta);
+        }
     }
 }
 
@@ -651,10 +779,57 @@
     mQueue = NULL;
 }
 
+void ATSParser::Stream::ensureBufferCapacity(size_t neededSize) {
+    if (mBuffer != NULL && mBuffer->capacity() >= neededSize) {
+        return;
+    }
+
+    ALOGV("ensureBufferCapacity: current size %zu, new size %zu, scrambled %d",
+            mBuffer == NULL ? 0 : mBuffer->capacity(), neededSize, mScrambled);
+
+    sp<ABuffer> newBuffer, newScrambledBuffer;
+    sp<IMemory> newMem;
+    sp<MemoryDealer> newDealer;
+    if (mScrambled) {
+        size_t alignment = MemoryDealer::getAllocationAlignment();
+        neededSize = (neededSize + (alignment - 1)) & ~(alignment - 1);
+        // Align to multiples of 64K.
+        neededSize = (neededSize + 65535) & ~65535;
+        newDealer = new MemoryDealer(neededSize, "ATSParser");
+        newMem = newDealer->allocate(neededSize);
+        newScrambledBuffer = new ABuffer(newMem->pointer(), newMem->size());
+
+        if (mDescrambledBuffer != NULL) {
+            memcpy(newScrambledBuffer->data(),
+                    mDescrambledBuffer->data(), mDescrambledBuffer->size());
+            newScrambledBuffer->setRange(0, mDescrambledBuffer->size());
+        } else {
+            newScrambledBuffer->setRange(0, 0);
+        }
+        mMem = newMem;
+        mDealer = newDealer;
+        mDescrambledBuffer = newScrambledBuffer;
+    } else {
+        // Align to multiples of 64K.
+        neededSize = (neededSize + 65535) & ~65535;
+    }
+
+    newBuffer = new ABuffer(neededSize);
+    if (mBuffer != NULL) {
+        memcpy(newBuffer->data(), mBuffer->data(), mBuffer->size());
+        newBuffer->setRange(0, mBuffer->size());
+    } else {
+        newBuffer->setRange(0, 0);
+    }
+    mBuffer = newBuffer;
+}
+
 status_t ATSParser::Stream::parse(
         unsigned continuity_counter,
-        unsigned payload_unit_start_indicator, ABitReader *br,
-        SyncEvent *event) {
+        unsigned payload_unit_start_indicator,
+        unsigned transport_scrambling_control,
+        unsigned random_access_indicator,
+        ABitReader *br, SyncEvent *event) {
     if (mQueue == NULL) {
         return OK;
     }
@@ -666,6 +841,7 @@
         mPayloadStarted = false;
         mPesStartOffsets.clear();
         mBuffer->setRange(0, 0);
+        mSubSamples.clear();
         mExpectedContinuityCounter = -1;
 
 #if 0
@@ -719,21 +895,16 @@
     }
 
     size_t neededSize = mBuffer->size() + payloadSizeBits / 8;
-    if (mBuffer->capacity() < neededSize) {
-        // Increment in multiples of 64K.
-        neededSize = (neededSize + 65535) & ~65535;
-
-        ALOGI("resizing buffer to %zu bytes", neededSize);
-
-        sp<ABuffer> newBuffer = new ABuffer(neededSize);
-        memcpy(newBuffer->data(), mBuffer->data(), mBuffer->size());
-        newBuffer->setRange(0, mBuffer->size());
-        mBuffer = newBuffer;
-    }
+    ensureBufferCapacity(neededSize);
 
     memcpy(mBuffer->data() + mBuffer->size(), br->data(), payloadSizeBits / 8);
     mBuffer->setRange(0, mBuffer->size() + payloadSizeBits / 8);
 
+    if (mScrambled) {
+        mSubSamples.push_back({payloadSizeBits / 8,
+                 transport_scrambling_control, random_access_indicator});
+    }
+
     return OK;
 }
 
@@ -783,6 +954,7 @@
     mPesStartOffsets.clear();
     mEOSReached = false;
     mBuffer->setRange(0, 0);
+    mSubSamples.clear();
 
     bool clearFormat = false;
     if (isAudio()) {
@@ -811,7 +983,15 @@
     }
 
     if (mSource != NULL) {
-        mSource->queueDiscontinuity(type, extra, true);
+        sp<MetaData> meta = mSource->getFormat();
+        const char* mime;
+        if (clearFormat && meta != NULL && meta->findCString(kKeyMIMEType, &mime)
+                && (!strncasecmp(mime, MEDIA_MIMETYPE_AUDIO_SCRAMBLED, 15)
+                 || !strncasecmp(mime, MEDIA_MIMETYPE_VIDEO_SCRAMBLED, 15))){
+            mSource->clear();
+        } else {
+            mSource->queueDiscontinuity(type, extra, true);
+        }
     }
 }
 
@@ -824,6 +1004,8 @@
 }
 
 status_t ATSParser::Stream::parsePES(ABitReader *br, SyncEvent *event) {
+    const uint8_t *basePtr = br->data();
+
     unsigned packet_startcode_prefix = br->getBits(24);
 
     ALOGV("packet_startcode_prefix = 0x%08x", packet_startcode_prefix);
@@ -853,7 +1035,9 @@
             return ERROR_MALFORMED;
         }
 
-        MY_LOGV("PES_scrambling_control = %u", br->getBits(2));
+        unsigned PES_scrambling_control = br->getBits(2);
+        ALOGV("PES_scrambling_control = %u", PES_scrambling_control);
+
         MY_LOGV("PES_priority = %u", br->getBits(1));
         MY_LOGV("data_alignment_indicator = %u", br->getBits(1));
         MY_LOGV("copyright = %u", br->getBits(1));
@@ -986,6 +1170,7 @@
         br->skipBits(optional_bytes_remaining * 8);
 
         // ES data follows.
+        int32_t pesOffset = br->data() - basePtr;
 
         if (PES_packet_length != 0) {
             if (PES_packet_length < PES_header_data_length + 3) {
@@ -1003,21 +1188,26 @@
                 return ERROR_MALFORMED;
             }
 
+            ALOGV("There's %u bytes of payload, PES_packet_length=%u, offset=%d",
+                    dataLength, PES_packet_length, pesOffset);
+
             onPayloadData(
-                    PTS_DTS_flags, PTS, DTS, br->data(), dataLength, event);
+                    PTS_DTS_flags, PTS, DTS, PES_scrambling_control,
+                    br->data(), dataLength, pesOffset, event);
 
             br->skipBits(dataLength * 8);
         } else {
             onPayloadData(
-                    PTS_DTS_flags, PTS, DTS,
-                    br->data(), br->numBitsLeft() / 8, event);
+                    PTS_DTS_flags, PTS, DTS, PES_scrambling_control,
+                    br->data(), br->numBitsLeft() / 8, pesOffset, event);
 
             size_t payloadSizeBits = br->numBitsLeft();
             if (payloadSizeBits % 8 != 0u) {
                 return ERROR_MALFORMED;
             }
 
-            ALOGV("There's %zu bytes of payload.", payloadSizeBits / 8);
+            ALOGV("There's %zu bytes of payload, offset=%d",
+                    payloadSizeBits / 8, pesOffset);
         }
     } else if (stream_id == 0xbe) {  // padding_stream
         if (PES_packet_length == 0u) {
@@ -1034,6 +1224,200 @@
     return OK;
 }
 
+uint32_t ATSParser::Stream::getPesScramblingControl(
+        ABitReader *br, int32_t *pesOffset) {
+    unsigned packet_startcode_prefix = br->getBits(24);
+
+    ALOGV("packet_startcode_prefix = 0x%08x", packet_startcode_prefix);
+
+    if (packet_startcode_prefix != 1) {
+        ALOGV("unit does not start with startcode.");
+        return 0;
+    }
+
+    if (br->numBitsLeft() < 48) {
+        return 0;
+    }
+
+    unsigned stream_id = br->getBits(8);
+    ALOGV("stream_id = 0x%02x", stream_id);
+
+    br->skipBits(16); // PES_packet_length
+
+    if (stream_id != 0xbc  // program_stream_map
+            && stream_id != 0xbe  // padding_stream
+            && stream_id != 0xbf  // private_stream_2
+            && stream_id != 0xf0  // ECM
+            && stream_id != 0xf1  // EMM
+            && stream_id != 0xff  // program_stream_directory
+            && stream_id != 0xf2  // DSMCC
+            && stream_id != 0xf8) {  // H.222.1 type E
+        if (br->getBits(2) != 2u) {
+            return 0;
+        }
+
+        unsigned PES_scrambling_control = br->getBits(2);
+        ALOGV("PES_scrambling_control = %u", PES_scrambling_control);
+
+        if (PES_scrambling_control == 0) {
+            return 0;
+        }
+
+        br->skipBits(12); // don't care
+
+        unsigned PES_header_data_length = br->getBits(8);
+        ALOGV("PES_header_data_length = %u", PES_header_data_length);
+
+        if (PES_header_data_length * 8 > br->numBitsLeft()) {
+            return 0;
+        }
+
+        *pesOffset = 9 + PES_header_data_length;
+        ALOGD("found PES_scrambling_control=%d, PES offset=%d",
+                PES_scrambling_control, *pesOffset);
+        return PES_scrambling_control;
+    }
+
+    return 0;
+}
+
+status_t ATSParser::Stream::flushScrambled(SyncEvent *event) {
+    if (mDescrambler == NULL) {
+        ALOGE("received scrambled packets without descrambler!");
+        return UNKNOWN_ERROR;
+    }
+
+    if (mDescrambledBuffer == NULL || mMem == NULL) {
+        ALOGE("received scrambled packets without shared memory!");
+
+        return UNKNOWN_ERROR;
+    }
+
+    int32_t pesOffset = 0;
+    int32_t descrambleSubSamples = 0, descrambleBytes = 0;
+    uint32_t tsScramblingControl = 0, pesScramblingControl = 0;
+
+    // First, go over subsamples to find TS-level scrambling key id, and
+    // calculate how many subsample we need to descramble (assuming we don't
+    // have PES-level scrambling).
+    for (auto it = mSubSamples.begin(); it != mSubSamples.end(); it++) {
+        if (it->transport_scrambling_mode != 0) {
+            // TODO: handle keyId change, use the first non-zero keyId for now.
+            if (tsScramblingControl == 0) {
+                tsScramblingControl = it->transport_scrambling_mode;
+            }
+        }
+        if (tsScramblingControl == 0 || descrambleSubSamples == 0
+                || !mQueue->isScrambled()) {
+            descrambleSubSamples++;
+            descrambleBytes += it->subSampleSize;
+        }
+    }
+    // If not scrambled at TS-level, check PES-level scrambling
+    if (tsScramblingControl == 0) {
+        ABitReader br(mBuffer->data(), mBuffer->size());
+        pesScramblingControl = getPesScramblingControl(&br, &pesOffset);
+        // If not scrambled at PES-level either, or scrambled at PES-level but
+        // requires output to remain scrambled, we don't need to descramble
+        // anything.
+        if (pesScramblingControl == 0 || mQueue->isScrambled()) {
+            descrambleSubSamples = 0;
+            descrambleBytes = 0;
+        }
+    }
+
+    uint32_t sctrl = tsScramblingControl != 0 ?
+            tsScramblingControl : pesScramblingControl;
+
+    // Perform the 1st pass descrambling if needed
+    if (descrambleBytes > 0) {
+        memcpy(mDescrambledBuffer->data(), mBuffer->data(), descrambleBytes);
+        mDescrambledBuffer->setRange(0, descrambleBytes);
+
+        sp<ABuffer> subSamples = new ABuffer(
+                sizeof(DescramblerPlugin::SubSample) * descrambleSubSamples);
+
+        DescrambleInfo info;
+        info.dstType = DescrambleInfo::kDestinationTypeVmPointer;
+        info.scramblingControl = (DescramblerPlugin::ScramblingControl)sctrl;
+        info.numSubSamples = descrambleSubSamples;
+        info.subSamples = (DescramblerPlugin::SubSample *)subSamples->data();
+        info.srcMem = mMem;
+        info.srcOffset = 0;
+        info.dstPtr = NULL; // in-place descrambling into srcMem
+        info.dstOffset = 0;
+
+        int32_t i = 0;
+        for (auto it = mSubSamples.begin();
+                it != mSubSamples.end() && i < descrambleSubSamples; it++, i++) {
+            if (it->transport_scrambling_mode != 0 || pesScramblingControl != 0) {
+                info.subSamples[i].mNumBytesOfClearData = 0;
+                info.subSamples[i].mNumBytesOfEncryptedData = it->subSampleSize;
+            } else {
+                info.subSamples[i].mNumBytesOfClearData = it->subSampleSize;
+                info.subSamples[i].mNumBytesOfEncryptedData = 0;
+            }
+        }
+        // If scrambled at PES-level, PES header should be skipped
+        if (pesScramblingControl != 0) {
+            info.srcOffset = info.dstOffset = pesOffset;
+            info.subSamples[0].mNumBytesOfEncryptedData -= pesOffset;
+        }
+
+        int32_t result;
+        Status status = mDescrambler->descramble(info, &result);
+
+        if (!status.isOk()) {
+            ALOGE("[stream %d] descramble failed, exceptionCode=%d",
+                    mElementaryPID, status.exceptionCode());
+            return UNKNOWN_ERROR;
+        }
+
+        ALOGV("[stream %d] descramble succeeded, %d bytes",
+                mElementaryPID, result);
+        memcpy(mBuffer->data(), mDescrambledBuffer->data(), descrambleBytes);
+    }
+
+    if (mQueue->isScrambled()) {
+        // Queue subSample info for scrambled queue
+        sp<ABuffer> clearSizesBuffer = new ABuffer(mSubSamples.size() * 4);
+        sp<ABuffer> encSizesBuffer = new ABuffer(mSubSamples.size() * 4);
+        int32_t *clearSizePtr = (int32_t*)clearSizesBuffer->data();
+        int32_t *encSizePtr = (int32_t*)encSizesBuffer->data();
+        int32_t isSync = 0;
+        int32_t i = 0;
+        for (auto it = mSubSamples.begin();
+                it != mSubSamples.end(); it++, i++) {
+            if ((it->transport_scrambling_mode == 0
+                    && pesScramblingControl == 0)
+                    || i < descrambleSubSamples) {
+                clearSizePtr[i] = it->subSampleSize;
+                encSizePtr[i] = 0;
+            } else {
+                clearSizePtr[i] = 0;
+                encSizePtr[i] = it->subSampleSize;
+            }
+            isSync |= it->random_access_indicator;
+        }
+        // Pass the original TS subsample size now. The PES header adjust
+        // will be applied when the scrambled AU is dequeued.
+        mQueue->appendScrambledData(
+                mBuffer->data(), mBuffer->size(), sctrl,
+                isSync, clearSizesBuffer, encSizesBuffer);
+    }
+
+    ABitReader br(mBuffer->data(), mBuffer->size());
+    status_t err = parsePES(&br, event);
+
+    if (err != OK) {
+        ALOGE("[stream %d] failed to parse descrambled PES, err=%d",
+                mElementaryPID, err);
+    }
+
+    return err;
+}
+
+
 status_t ATSParser::Stream::flush(SyncEvent *event) {
     if (mBuffer == NULL || mBuffer->size() == 0) {
         return OK;
@@ -1041,9 +1425,14 @@
 
     ALOGV("flushing stream 0x%04x size = %zu", mElementaryPID, mBuffer->size());
 
-    ABitReader br(mBuffer->data(), mBuffer->size());
-
-    status_t err = parsePES(&br, event);
+    status_t err = OK;
+    if (mScrambled) {
+        err = flushScrambled(event);
+        mSubSamples.clear();
+    } else {
+        ABitReader br(mBuffer->data(), mBuffer->size());
+        err = parsePES(&br, event);
+    }
 
     mBuffer->setRange(0, 0);
 
@@ -1052,7 +1441,9 @@
 
 void ATSParser::Stream::onPayloadData(
         unsigned PTS_DTS_flags, uint64_t PTS, uint64_t /* DTS */,
-        const uint8_t *data, size_t size, SyncEvent *event) {
+        unsigned PES_scrambling_control,
+        const uint8_t *data, size_t size,
+        int32_t payloadOffset, SyncEvent *event) {
 #if 0
     ALOGI("payload streamType 0x%02x, PTS = 0x%016llx, dPTS = %lld",
           mStreamType,
@@ -1068,7 +1459,8 @@
         timeUs = mProgram->convertPTSToTimestamp(PTS);
     }
 
-    status_t err = mQueue->appendData(data, size, timeUs);
+    status_t err = mQueue->appendData(
+            data, size, timeUs, payloadOffset, PES_scrambling_control);
 
     if (mEOSReached) {
         mQueue->signalEOS();
@@ -1090,9 +1482,11 @@
 
                 const char *mime;
                 if (meta->findCString(kKeyMIMEType, &mime)
-                        && !strcasecmp(mime, MEDIA_MIMETYPE_VIDEO_AVC)
-                        && !IsIDR(accessUnit)) {
-                    continue;
+                        && !strcasecmp(mime, MEDIA_MIMETYPE_VIDEO_AVC)) {
+                    int32_t sync = 0;
+                    if (!accessUnit->meta()->findInt32("isSync", &sync) || !sync) {
+                        continue;
+                    }
                 }
                 mSource = new AnotherPacketSource(meta);
                 mSource->queueAccessUnit(accessUnit);
@@ -1121,13 +1515,24 @@
                 int64_t timeUs;
                 if (accessUnit->meta()->findInt64("timeUs", &timeUs)) {
                     found = true;
-                    event->init(pesStartOffset, mSource, timeUs);
+                    event->init(pesStartOffset, mSource, timeUs, getSourceType());
                 }
             }
         }
     }
 }
 
+ATSParser::SourceType ATSParser::Stream::getSourceType() {
+    if (isVideo()) {
+        return VIDEO;
+    } else if (isAudio()) {
+        return AUDIO;
+    } else if (isMeta()) {
+        return META;
+    }
+    return NUM_SOURCE_TYPES;
+}
+
 sp<MediaSource> ATSParser::Stream::getSource(SourceType type) {
     switch (type) {
         case VIDEO:
@@ -1161,6 +1566,18 @@
     return NULL;
 }
 
+void ATSParser::Stream::setCasSession(
+        const sp<IDescrambler> &descrambler,
+        const std::vector<uint8_t> &sessionId) {
+    if (mSource != NULL && mDescrambler == NULL && descrambler != NULL) {
+        signalDiscontinuity(DISCONTINUITY_FORMAT_ONLY, NULL);
+        mDescrambler = descrambler;
+        if (mQueue->isScrambled()) {
+            mQueue->setCasSession(sessionId);
+        }
+    }
+}
+
 ////////////////////////////////////////////////////////////////////////////////
 
 ATSParser::ATSParser(uint32_t flags)
@@ -1172,6 +1589,7 @@
       mNumTSPacketsParsed(0),
       mNumPCRs(0) {
     mPSISections.add(0 /* PID */, new PSISection);
+    mCasManager = new CasManager();
 }
 
 ATSParser::~ATSParser() {
@@ -1188,6 +1606,17 @@
     return parseTS(&br, event);
 }
 
+status_t ATSParser::setMediaCas(const sp<ICas> &cas) {
+    status_t err = mCasManager->setMediaCas(cas);
+    if (err != OK) {
+        return err;
+    }
+    for (size_t i = 0; i < mPrograms.size(); ++i) {
+        mPrograms.editItemAt(i)->updateCasSessions();
+    }
+    return OK;
+}
+
 void ATSParser::signalDiscontinuity(
         DiscontinuityType type, const sp<AMessage> &extra) {
     int64_t mediaTimeUs;
@@ -1314,6 +1743,8 @@
         ABitReader *br, unsigned PID,
         unsigned continuity_counter,
         unsigned payload_unit_start_indicator,
+        unsigned transport_scrambling_control,
+        unsigned random_access_indicator,
         SyncEvent *event) {
     ssize_t sectionIndex = mPSISections.indexOfKey(PID);
 
@@ -1385,7 +1816,10 @@
     for (size_t i = 0; i < mPrograms.size(); ++i) {
         status_t err;
         if (mPrograms.editItemAt(i)->parsePID(
-                    PID, continuity_counter, payload_unit_start_indicator,
+                    PID, continuity_counter,
+                    payload_unit_start_indicator,
+                    transport_scrambling_control,
+                    random_access_indicator,
                     br, &err, event)) {
             if (err != OK) {
                 return err;
@@ -1397,13 +1831,19 @@
     }
 
     if (!handled) {
+        handled = mCasManager->parsePID(br, PID);
+    }
+
+    if (!handled) {
         ALOGV("PID 0x%04x not handled.", PID);
     }
 
     return OK;
 }
 
-status_t ATSParser::parseAdaptationField(ABitReader *br, unsigned PID) {
+status_t ATSParser::parseAdaptationField(
+        ABitReader *br, unsigned PID, unsigned *random_access_indicator) {
+    *random_access_indicator = 0;
     unsigned adaptation_field_length = br->getBits(8);
 
     if (adaptation_field_length > 0) {
@@ -1418,7 +1858,16 @@
             ALOGV("PID 0x%04x: discontinuity_indicator = 1 (!!!)", PID);
         }
 
-        br->skipBits(2);
+        *random_access_indicator = br->getBits(1);
+        if (*random_access_indicator) {
+            ALOGV("PID 0x%04x: random_access_indicator = 1", PID);
+        }
+
+        unsigned elementary_stream_priority_indicator = br->getBits(1);
+        if (elementary_stream_priority_indicator) {
+            ALOGV("PID 0x%04x: elementary_stream_priority_indicator = 1", PID);
+        }
+
         unsigned PCR_flag = br->getBits(1);
 
         size_t numBitsRead = 4;
@@ -1484,7 +1933,8 @@
     unsigned PID = br->getBits(13);
     ALOGV("PID = 0x%04x", PID);
 
-    MY_LOGV("transport_scrambling_control = %u", br->getBits(2));
+    unsigned transport_scrambling_control = br->getBits(2);
+    ALOGV("transport_scrambling_control = %u", transport_scrambling_control);
 
     unsigned adaptation_field_control = br->getBits(2);
     ALOGV("adaptation_field_control = %u", adaptation_field_control);
@@ -1496,13 +1946,17 @@
 
     status_t err = OK;
 
+    unsigned random_access_indicator = 0;
     if (adaptation_field_control == 2 || adaptation_field_control == 3) {
-        err = parseAdaptationField(br, PID);
+        err = parseAdaptationField(br, PID, &random_access_indicator);
     }
     if (err == OK) {
         if (adaptation_field_control == 1 || adaptation_field_control == 3) {
             err = parsePID(br, PID, continuity_counter,
-                    payload_unit_start_indicator, event);
+                    payload_unit_start_indicator,
+                    transport_scrambling_control,
+                    random_access_indicator,
+                    event);
         }
     }
 
@@ -1565,6 +2019,16 @@
     return mPrograms.editItemAt(0)->PTSTimeDeltaEstablished();
 }
 
+int64_t ATSParser::getFirstPTSTimeUs() {
+    for (size_t i = 0; i < mPrograms.size(); ++i) {
+        sp<ATSParser::Program> program = mPrograms.itemAt(i);
+        if (program->PTSTimeDeltaEstablished()) {
+            return (program->firstPTS() * 100) / 9;
+        }
+    }
+    return -1;
+}
+
 __attribute__((no_sanitize("integer")))
 void ATSParser::updatePCR(
         unsigned /* PID */, uint64_t PCR, uint64_t byteOffsetFromStart) {
diff --git a/media/libstagefright/mpeg2ts/ATSParser.h b/media/libstagefright/mpeg2ts/ATSParser.h
index 2b166f0..4a88713 100644
--- a/media/libstagefright/mpeg2ts/ATSParser.h
+++ b/media/libstagefright/mpeg2ts/ATSParser.h
@@ -26,11 +26,17 @@
 #include <utils/KeyedVector.h>
 #include <utils/Vector.h>
 #include <utils/RefBase.h>
+#include <vector>
 
 namespace android {
-
+namespace media {
+class ICas;
+class IDescrambler;
+};
+using namespace media;
 class ABitReader;
 struct ABuffer;
+struct AnotherPacketSource;
 
 struct ATSParser : public RefBase {
     enum DiscontinuityType {
@@ -62,18 +68,26 @@
         ALIGNED_VIDEO_DATA         = 2,
     };
 
+    enum SourceType {
+        VIDEO = 0,
+        AUDIO = 1,
+        META  = 2,
+        NUM_SOURCE_TYPES = 3
+    };
+
     // Event is used to signal sync point event at feedTSPacket().
     struct SyncEvent {
         explicit SyncEvent(off64_t offset);
 
         void init(off64_t offset, const sp<MediaSource> &source,
-                int64_t timeUs);
+                int64_t timeUs, SourceType type);
 
         bool hasReturnedData() const { return mHasReturnedData; }
         void reset();
         off64_t getOffset() const { return mOffset; }
         const sp<MediaSource> &getMediaSource() const { return mMediaSource; }
         int64_t getTimeUs() const { return mTimeUs; }
+        SourceType getType() const { return mType; }
 
     private:
         bool mHasReturnedData;
@@ -87,10 +101,13 @@
         sp<MediaSource> mMediaSource;
         /* The timestamp of the sync frame. */
         int64_t mTimeUs;
+        SourceType mType;
     };
 
     explicit ATSParser(uint32_t flags = 0);
 
+    status_t setMediaCas(const sp<ICas> &cas);
+
     // Feed a TS packet into the parser. uninitialized event with the start
     // offset of this TS packet goes in, and if the parser detects PES with
     // a sync frame, the event will be initiailzed with the start offset of the
@@ -107,17 +124,13 @@
 
     void signalEOS(status_t finalResult);
 
-    enum SourceType {
-        VIDEO = 0,
-        AUDIO = 1,
-        META  = 2,
-        NUM_SOURCE_TYPES = 3
-    };
     sp<MediaSource> getSource(SourceType type);
     bool hasSource(SourceType type) const;
 
     bool PTSTimeDeltaEstablished();
 
+    int64_t getFirstPTSTimeUs();
+
     enum {
         // From ISO/IEC 13818-1: 2000 (E), Table 2-29
         STREAMTYPE_RESERVED             = 0x00,
@@ -145,6 +158,14 @@
     struct Program;
     struct Stream;
     struct PSISection;
+    struct CasManager;
+    struct CADescriptor {
+        int32_t mSystemID;
+        unsigned mPID;
+        std::vector<uint8_t> mPrivateData;
+    };
+
+    sp<CasManager> mCasManager;
 
     uint32_t mFlags;
     Vector<sp<Program> > mPrograms;
@@ -176,9 +197,13 @@
         ABitReader *br, unsigned PID,
         unsigned continuity_counter,
         unsigned payload_unit_start_indicator,
+        unsigned transport_scrambling_control,
+        unsigned random_access_indicator,
         SyncEvent *event);
 
-    status_t parseAdaptationField(ABitReader *br, unsigned PID);
+    status_t parseAdaptationField(
+            ABitReader *br, unsigned PID, unsigned *random_access_indicator);
+
     // see feedTSPacket().
     status_t parseTS(ABitReader *br, SyncEvent *event);
 
diff --git a/media/libstagefright/mpeg2ts/Android.mk b/media/libstagefright/mpeg2ts/Android.mk
index 66722a8..5140e66 100644
--- a/media/libstagefright/mpeg2ts/Android.mk
+++ b/media/libstagefright/mpeg2ts/Android.mk
@@ -5,6 +5,7 @@
 LOCAL_SRC_FILES:=                 \
         AnotherPacketSource.cpp   \
         ATSParser.cpp             \
+        CasManager.cpp            \
         ESQueue.cpp               \
         MPEG2PSExtractor.cpp      \
         MPEG2TSExtractor.cpp      \
@@ -14,8 +15,8 @@
 	$(TOP)/frameworks/native/include/media/openmax
 
 LOCAL_CFLAGS += -Werror -Wall
-LOCAL_CLANG := true
-LOCAL_SANITIZE := unsigned-integer-overflow signed-integer-overflow
+LOCAL_SANITIZE := unsigned-integer-overflow signed-integer-overflow cfi
+LOCAL_SANITIZE_DIAG := cfi
 
 LOCAL_SHARED_LIBRARIES := libmedia
 
diff --git a/media/libstagefright/mpeg2ts/AnotherPacketSource.cpp b/media/libstagefright/mpeg2ts/AnotherPacketSource.cpp
index 4fcf7b5..433b1fc 100644
--- a/media/libstagefright/mpeg2ts/AnotherPacketSource.cpp
+++ b/media/libstagefright/mpeg2ts/AnotherPacketSource.cpp
@@ -44,6 +44,7 @@
       mEnabled(true),
       mFormat(NULL),
       mLastQueuedTimeUs(0),
+      mEstimatedBufferDurationUs(-1),
       mEOSResult(OK),
       mLatestEnqueuedMeta(NULL),
       mLatestDequeuedMeta(NULL) {
@@ -203,25 +204,53 @@
         }
 
         MediaBuffer *mediaBuffer = new MediaBuffer(buffer);
+        sp<MetaData> bufmeta = mediaBuffer->meta_data();
 
-        mediaBuffer->meta_data()->setInt64(kKeyTime, timeUs);
+        bufmeta->setInt64(kKeyTime, timeUs);
 
         int32_t isSync;
         if (buffer->meta()->findInt32("isSync", &isSync)) {
-            mediaBuffer->meta_data()->setInt32(kKeyIsSyncFrame, isSync);
+            bufmeta->setInt32(kKeyIsSyncFrame, isSync);
         }
 
         sp<ABuffer> sei;
         if (buffer->meta()->findBuffer("sei", &sei) && sei != NULL) {
-            mediaBuffer->meta_data()->setData(kKeySEI, 0, sei->data(), sei->size());
+            bufmeta->setData(kKeySEI, 0, sei->data(), sei->size());
         }
 
         sp<ABuffer> mpegUserData;
         if (buffer->meta()->findBuffer("mpegUserData", &mpegUserData) && mpegUserData != NULL) {
-            mediaBuffer->meta_data()->setData(
+            bufmeta->setData(
                     kKeyMpegUserData, 0, mpegUserData->data(), mpegUserData->size());
         }
 
+        int32_t cryptoMode;
+        if (buffer->meta()->findInt32("cryptoMode", &cryptoMode)) {
+            int32_t cryptoKey;
+            sp<ABuffer> clearBytesBuffer, encBytesBuffer;
+
+            CHECK(buffer->meta()->findInt32("cryptoKey", &cryptoKey));
+            CHECK(buffer->meta()->findBuffer("clearBytes", &clearBytesBuffer)
+                    && clearBytesBuffer != NULL);
+            CHECK(buffer->meta()->findBuffer("encBytes", &encBytesBuffer)
+                    && encBytesBuffer != NULL);
+
+            bufmeta->setInt32(kKeyCryptoMode, cryptoMode);
+
+            uint8_t array[16] = {0};
+            bufmeta->setData(kKeyCryptoIV, 0, array, 16);
+
+            array[0] = (uint8_t) (cryptoKey & 0xff);
+            bufmeta->setData(kKeyCryptoKey, 0, array, 16);
+
+            bufmeta->setData(kKeyPlainSizes, 0,
+                    clearBytesBuffer->data(), clearBytesBuffer->size());
+
+            bufmeta->setData(kKeyEncryptedSizes, 0,
+                    encBytesBuffer->data(), encBytesBuffer->size());
+        }
+
+
         *out = mediaBuffer;
         return OK;
     }
@@ -309,6 +338,8 @@
 
     mFormat = NULL;
     mLatestEnqueuedMeta = NULL;
+
+    mEstimatedBufferDurationUs = -1;
 }
 
 void AnotherPacketSource::queueDiscontinuity(
@@ -431,6 +462,31 @@
     return durationUs;
 }
 
+int64_t AnotherPacketSource::getEstimatedBufferDurationUs() {
+    Mutex::Autolock autoLock(mLock);
+    if (mEstimatedBufferDurationUs >= 0) {
+        return mEstimatedBufferDurationUs;
+    }
+
+    SortedVector<int64_t> maxTimesUs;
+    List<sp<ABuffer> >::iterator it;
+    int64_t t1 = 0, t2 = 0;
+    for (it = mBuffers.begin(); it != mBuffers.end(); ++it) {
+        int64_t timeUs = 0;
+        const sp<ABuffer> &buffer = *it;
+        if (!buffer->meta()->findInt64("timeUs", &timeUs)) {
+            continue;
+        }
+        maxTimesUs.add(timeUs);
+        while (maxTimesUs.size() > 2) {
+            maxTimesUs.removeAt(0);
+            t1 = maxTimesUs.itemAt(0);
+            t2 = maxTimesUs.itemAt(1);
+        }
+    }
+    return mEstimatedBufferDurationUs = t2 - t1;
+}
+
 status_t AnotherPacketSource::nextBufferTime(int64_t *timeUs) {
     *timeUs = 0;
 
diff --git a/media/libstagefright/mpeg2ts/AnotherPacketSource.h b/media/libstagefright/mpeg2ts/AnotherPacketSource.h
index dd6849e..b0890d7 100644
--- a/media/libstagefright/mpeg2ts/AnotherPacketSource.h
+++ b/media/libstagefright/mpeg2ts/AnotherPacketSource.h
@@ -57,6 +57,9 @@
     // presentation timestamps since the last discontinuity (if any).
     int64_t getBufferedDurationUs(status_t *finalResult);
 
+    // Returns the difference between the two largest timestamps queued
+    int64_t getEstimatedBufferDurationUs();
+
     status_t nextBufferTime(int64_t *timeUs);
 
     void queueAccessUnit(const sp<ABuffer> &buffer);
@@ -113,6 +116,7 @@
     bool mEnabled;
     sp<MetaData> mFormat;
     int64_t mLastQueuedTimeUs;
+    int64_t mEstimatedBufferDurationUs;
     List<sp<ABuffer> > mBuffers;
     status_t mEOSResult;
     sp<AMessage> mLatestEnqueuedMeta;
diff --git a/media/libstagefright/mpeg2ts/CasManager.cpp b/media/libstagefright/mpeg2ts/CasManager.cpp
new file mode 100644
index 0000000..4e34a30
--- /dev/null
+++ b/media/libstagefright/mpeg2ts/CasManager.cpp
@@ -0,0 +1,330 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "CasManager"
+#include "CasManager.h"
+
+#include <android/media/ICas.h>
+#include <android/media/IDescrambler.h>
+#include <android/media/IMediaCasService.h>
+#include <binder/IServiceManager.h>
+#include <media/stagefright/foundation/ABitReader.h>
+#include <utils/Log.h>
+
+namespace android {
+using binder::Status;
+
+struct ATSParser::CasManager::ProgramCasManager : public RefBase {
+    ProgramCasManager(unsigned programNumber, const CADescriptor &descriptor);
+    ProgramCasManager(unsigned programNumber);
+
+    bool addStream(unsigned elementaryPID, const CADescriptor &descriptor);
+
+    status_t setMediaCas(const sp<ICas> &cas, PidToSessionMap &sessionMap);
+
+    bool getCasSession(unsigned elementaryPID,
+            sp<IDescrambler> *descrambler, std::vector<uint8_t> *sessionId) const;
+
+    void closeAllSessions(const sp<ICas>& cas);
+
+private:
+    struct CasSession {
+        CasSession() {}
+        CasSession(const CADescriptor &descriptor) :
+            mCADescriptor(descriptor) {}
+
+        CADescriptor mCADescriptor;
+        std::vector<uint8_t> mSessionId;
+        sp<IDescrambler> mDescrambler;
+    };
+    status_t initSession(
+             const sp<ICas>& cas, PidToSessionMap &sessionMap,
+             CasSession *session, unsigned programNumber, unsigned elementaryPID);
+    void closeSession(const sp<ICas>& cas, const CasSession &casSession);
+
+    unsigned mProgramNumber;
+    bool mHasProgramCas;
+    CasSession mProgramCas;
+    KeyedVector<unsigned, CasSession> mStreamPidToCasMap;
+};
+
+ATSParser::CasManager::ProgramCasManager::ProgramCasManager(
+        unsigned programNumber, const CADescriptor &descriptor) :
+    mProgramNumber(programNumber),
+    mHasProgramCas(true),
+    mProgramCas(descriptor) {}
+
+ATSParser::CasManager::ProgramCasManager::ProgramCasManager(
+        unsigned programNumber) :
+    mProgramNumber(programNumber),
+    mHasProgramCas(false) {}
+
+bool ATSParser::CasManager::ProgramCasManager::addStream(
+        unsigned elementaryPID, const CADescriptor &descriptor) {
+    ssize_t index = mStreamPidToCasMap.indexOfKey(elementaryPID);
+    if (index >= 0) {
+        return false;
+    }
+    ALOGV("addStream: program=%d, elementaryPID=%d, CA_system_ID=0x%x",
+            mProgramNumber, elementaryPID, descriptor.mSystemID);
+    mStreamPidToCasMap.add(elementaryPID, CasSession(descriptor));
+    return true;
+}
+
+status_t ATSParser::CasManager::ProgramCasManager::setMediaCas(
+        const sp<ICas> &cas, PidToSessionMap &sessionMap) {
+    if (mHasProgramCas) {
+        return initSession(cas, sessionMap, &mProgramCas, mProgramNumber, 0);
+    }
+    for (size_t index = 0; index < mStreamPidToCasMap.size(); index++) {
+        unsigned elementaryPID = mStreamPidToCasMap.keyAt(index);
+        status_t err;
+        if ((err = initSession(cas, sessionMap,
+                &mStreamPidToCasMap.editValueAt(index),
+                mProgramNumber, elementaryPID)) != OK) {
+            return err;
+        }
+    }
+    return OK;
+}
+
+bool ATSParser::CasManager::ProgramCasManager::getCasSession(
+        unsigned elementaryPID, sp<IDescrambler> *descrambler,
+        std::vector<uint8_t> *sessionId) const {
+    if (mHasProgramCas) {
+        *descrambler = mProgramCas.mDescrambler;
+        *sessionId = mProgramCas.mSessionId;
+        return true;
+    }
+    ssize_t index = mStreamPidToCasMap.indexOfKey(elementaryPID);
+    if (index < 0) {
+        return false;
+    }
+
+    *descrambler = mStreamPidToCasMap[index].mDescrambler;
+    *sessionId = mStreamPidToCasMap[index].mSessionId;
+    return true;
+}
+
+status_t ATSParser::CasManager::ProgramCasManager::initSession(
+         const sp<ICas>& cas, PidToSessionMap &sessionMap,
+         CasSession *session, unsigned programNumber, unsigned elementaryPID) {
+    sp<IServiceManager> sm = defaultServiceManager();
+    sp<IBinder> casServiceBinder = sm->getService(String16("media.cas"));
+    sp<IMediaCasService> casService =
+            interface_cast<IMediaCasService>(casServiceBinder);
+
+    if (casService == NULL) {
+        ALOGE("Cannot obtain IMediaCasService");
+        return NO_INIT;
+    }
+
+    sp<IDescrambler> descrambler;
+    std::vector<uint8_t> sessionId;
+    const CADescriptor &descriptor = session->mCADescriptor;
+
+    Status status;
+    if (elementaryPID == 0) {
+        status = cas->openSession(programNumber, &sessionId);
+    } else {
+        status = cas->openSessionForStream(
+                programNumber, elementaryPID, &sessionId);
+    }
+    if (!status.isOk()) {
+        ALOGE("Failed to open session: exception=%d, error=%d",
+                status.exceptionCode(), status.serviceSpecificErrorCode());
+        goto l_fail;
+    }
+
+    cas->setSessionPrivateData(sessionId, descriptor.mPrivateData);
+    if (!status.isOk()) {
+        ALOGE("Failed to set private data: exception=%d, error=%d",
+                status.exceptionCode(), status.serviceSpecificErrorCode());
+        goto l_fail;
+    }
+
+    status = casService->createDescrambler(descriptor.mSystemID, &descrambler);
+    if (!status.isOk() || descrambler == NULL) {
+        ALOGE("Failed to create descrambler: : exception=%d, error=%d",
+                status.exceptionCode(), status.serviceSpecificErrorCode());
+        goto l_fail;
+    }
+
+    status = descrambler->setMediaCasSession(sessionId);
+    if (!status.isOk()) {
+        ALOGE("Failed to init descrambler: : exception=%d, error=%d",
+                status.exceptionCode(), status.serviceSpecificErrorCode());
+        goto l_fail;
+    }
+
+    session->mSessionId = sessionId;
+    session->mDescrambler = descrambler;
+    sessionMap.add(descriptor.mPID, sessionId);
+
+    return OK;
+
+l_fail:
+    if (!sessionId.empty()) {
+        cas->closeSession(sessionId);
+    }
+    if (descrambler != NULL) {
+        descrambler->release();
+    }
+    return NO_INIT;
+}
+
+void ATSParser::CasManager::ProgramCasManager::closeSession(
+        const sp<ICas>& cas, const CasSession &casSession) {
+    if (casSession.mDescrambler != NULL) {
+        casSession.mDescrambler->release();
+    }
+    if (!casSession.mSessionId.empty()) {
+        cas->closeSession(casSession.mSessionId);
+    }
+}
+
+void ATSParser::CasManager::ProgramCasManager::closeAllSessions(
+        const sp<ICas>& cas) {
+    if (mHasProgramCas) {
+        closeSession(cas, mProgramCas);
+    }
+    for (size_t index = 0; index < mStreamPidToCasMap.size(); index++) {
+        closeSession(cas, mStreamPidToCasMap.editValueAt(index));
+    }
+}
+
+////////////////////////////////////////////////////////////////////////////////
+
+ATSParser::CasManager::CasManager() : mSystemId(-1) {}
+
+ATSParser::CasManager::~CasManager() {
+    // Explictly close the sessions opened by us, since the CAS object is owned
+    // by the app and may not go away after the parser is destroyed, and the app
+    // may not have information about the sessions.
+    if (mICas != NULL) {
+        for (size_t index = 0; index < mProgramCasMap.size(); index++) {
+            mProgramCasMap.editValueAt(index)->closeAllSessions(mICas);
+        }
+    }
+}
+
+bool ATSParser::CasManager::setSystemId(int32_t CA_system_ID) {
+    if (mSystemId == -1) {
+        // Verify the CA_system_ID is within range on the first program
+        if (CA_system_ID < 0 || CA_system_ID > 0xffff) {
+            ALOGE("Invalid CA_system_id: %d", CA_system_ID);
+            return false;
+        }
+        mSystemId = CA_system_ID;
+    } else if (mSystemId != CA_system_ID) {
+        // All sessions need to be under the same CA system
+        ALOGE("Multiple CA systems not allowed: %d vs %d",
+                mSystemId, CA_system_ID);
+        return false;
+    }
+    return true;
+}
+
+status_t ATSParser::CasManager::setMediaCas(const sp<ICas> &cas) {
+    if (cas == NULL) {
+        ALOGE("setMediaCas: received NULL object");
+        return BAD_VALUE;
+    }
+    if (mICas != NULL) {
+        ALOGW("setMediaCas: already set");
+        return ALREADY_EXISTS;
+    }
+    for (size_t index = 0; index < mProgramCasMap.size(); index++) {
+        status_t err;
+        if ((err = mProgramCasMap.editValueAt(
+                index)->setMediaCas(cas, mCAPidToSessionIdMap)) != OK) {
+            return err;
+        }
+    }
+    mICas = cas;
+    return OK;
+}
+
+bool ATSParser::CasManager::addProgram(
+        unsigned programNumber, const CADescriptor &descriptor) {
+    if (!setSystemId(descriptor.mSystemID)) {
+        return false;
+    }
+
+    ssize_t index = mProgramCasMap.indexOfKey(programNumber);
+    if (index < 0) {
+        ALOGV("addProgram: programNumber=%d, CA_system_ID=0x%x",
+                programNumber, descriptor.mSystemID);
+        mProgramCasMap.add(programNumber,
+                new ProgramCasManager(programNumber, descriptor));
+        mCAPidSet.insert(descriptor.mPID);
+    }
+    return true;
+}
+
+bool ATSParser::CasManager::addStream(
+        unsigned programNumber, unsigned elementaryPID,
+        const CADescriptor &descriptor) {
+    if (!setSystemId(descriptor.mSystemID)) {
+        return false;
+    }
+
+    ssize_t index = mProgramCasMap.indexOfKey(programNumber);
+    sp<ProgramCasManager> programCasManager;
+    if (index < 0) {
+        ALOGV("addProgram (no CADescriptor): programNumber=%d", programNumber);
+        programCasManager = new ProgramCasManager(programNumber);
+        mProgramCasMap.add(programNumber, programCasManager);
+    } else {
+        programCasManager = mProgramCasMap.editValueAt(index);
+    }
+    if (programCasManager->addStream(elementaryPID, descriptor)) {
+        mCAPidSet.insert(descriptor.mPID);
+    }
+    return true;
+}
+
+bool ATSParser::CasManager::getCasSession(
+        unsigned programNumber, unsigned elementaryPID,
+        sp<IDescrambler> *descrambler, std::vector<uint8_t> *sessionId) const {
+    ssize_t index = mProgramCasMap.indexOfKey(programNumber);
+    if (index < 0) {
+        return false;
+    }
+    return mProgramCasMap[index]->getCasSession(
+            elementaryPID, descrambler, sessionId);
+}
+
+bool ATSParser::CasManager::isCAPid(unsigned pid) {
+    return mCAPidSet.find(pid) != mCAPidSet.end();
+}
+
+bool ATSParser::CasManager::parsePID(ABitReader *br, unsigned pid) {
+    ssize_t index = mCAPidToSessionIdMap.indexOfKey(pid);
+    if (index < 0) {
+        return false;
+    }
+    MediaCas::ParcelableCasData ecm(br->data(), br->numBitsLeft() / 8);
+    Status status = mICas->processEcm(mCAPidToSessionIdMap[index], ecm);
+    if (!status.isOk()) {
+        ALOGE("Failed to process ECM: exception=%d, error=%d",
+                status.exceptionCode(), status.serviceSpecificErrorCode());
+    }
+    return true; // handled
+}
+
+}  // namespace android
diff --git a/media/libstagefright/mpeg2ts/CasManager.h b/media/libstagefright/mpeg2ts/CasManager.h
new file mode 100644
index 0000000..a7a3de9
--- /dev/null
+++ b/media/libstagefright/mpeg2ts/CasManager.h
@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+
+#include "ATSParser.h"
+#include <utils/KeyedVector.h>
+#include <set>
+
+namespace android {
+namespace media {
+class ICas;
+class IDescrambler;
+}
+
+struct ATSParser::CasManager : public RefBase {
+    CasManager();
+    virtual ~CasManager();
+
+    status_t setMediaCas(const sp<ICas> &cas);
+
+    bool addProgram(
+            unsigned programNumber, const CADescriptor &descriptor);
+
+    bool addStream(
+            unsigned programNumber, unsigned elementaryPID,
+            const CADescriptor &descriptor);
+
+    bool getCasSession(
+            unsigned programNumber, unsigned elementaryPID,
+            sp<IDescrambler> *descrambler,
+            std::vector<uint8_t> *sessionId) const;
+
+    bool isCAPid(unsigned pid);
+
+    bool parsePID(ABitReader *br, unsigned pid);
+
+private:
+    typedef KeyedVector<unsigned, std::vector<uint8_t> > PidToSessionMap;
+    struct ProgramCasManager;
+
+    bool setSystemId(int32_t CA_system_ID);
+
+    int32_t mSystemId;
+    sp<ICas> mICas;
+    KeyedVector<unsigned, sp<ProgramCasManager> > mProgramCasMap;
+    PidToSessionMap mCAPidToSessionIdMap;
+    std::set<uint32_t> mCAPidSet;
+};
+
+}  // namespace android
diff --git a/media/libstagefright/mpeg2ts/ESQueue.cpp b/media/libstagefright/mpeg2ts/ESQueue.cpp
index 96ca405..b933002 100644
--- a/media/libstagefright/mpeg2ts/ESQueue.cpp
+++ b/media/libstagefright/mpeg2ts/ESQueue.cpp
@@ -28,6 +28,8 @@
 #include <media/stagefright/MediaDefs.h>
 #include <media/stagefright/MetaData.h>
 #include <media/stagefright/Utils.h>
+#include <media/cas/DescramblerAPI.h>
+#include <media/hardware/CryptoAPI.h>
 
 #include "include/avc_utils.h"
 
@@ -53,6 +55,11 @@
 
     mRangeInfos.clear();
 
+    if (mScrambledBuffer != NULL) {
+        mScrambledBuffer->setRange(0, 0);
+    }
+    mScrambledRangeInfos.clear();
+
     if (clearFormat) {
         mFormat.clear();
     }
@@ -246,7 +253,8 @@
 }
 
 status_t ElementaryStreamQueue::appendData(
-        const void *data, size_t size, int64_t timeUs) {
+        const void *data, size_t size, int64_t timeUs,
+        int32_t payloadOffset, uint32_t pesScramblingControl) {
 
     if (mEOSReached) {
         ALOGE("appending data after EOS");
@@ -276,7 +284,7 @@
                     return ERROR_MALFORMED;
                 }
 
-                if (startOffset > 0) {
+                if (mFormat == NULL && startOffset > 0) {
                     ALOGI("found something resembling an H.264/MPEG syncword "
                           "at offset %zd",
                           startOffset);
@@ -451,6 +459,8 @@
     RangeInfo info;
     info.mLength = size;
     info.mTimestampUs = timeUs;
+    info.mPesOffset = payloadOffset;
+    info.mPesScramblingControl = pesScramblingControl;
     mRangeInfos.push_back(info);
 
 #if 0
@@ -463,8 +473,129 @@
     return OK;
 }
 
+void ElementaryStreamQueue::appendScrambledData(
+        const void *data, size_t size,
+        int32_t keyId, bool isSync,
+        sp<ABuffer> clearSizes, sp<ABuffer> encSizes) {
+    if (!isScrambled()) {
+        return;
+    }
+
+    size_t neededSize = (mScrambledBuffer == NULL ? 0 : mScrambledBuffer->size()) + size;
+    if (mScrambledBuffer == NULL || neededSize > mScrambledBuffer->capacity()) {
+        neededSize = (neededSize + 65535) & ~65535;
+
+        ALOGI("resizing scrambled buffer to size %zu", neededSize);
+
+        sp<ABuffer> buffer = new ABuffer(neededSize);
+        if (mScrambledBuffer != NULL) {
+            memcpy(buffer->data(), mScrambledBuffer->data(), mScrambledBuffer->size());
+            buffer->setRange(0, mScrambledBuffer->size());
+        } else {
+            buffer->setRange(0, 0);
+        }
+
+        mScrambledBuffer = buffer;
+    }
+    memcpy(mScrambledBuffer->data() + mScrambledBuffer->size(), data, size);
+    mScrambledBuffer->setRange(0, mScrambledBuffer->size() + size);
+
+    ScrambledRangeInfo scrambledInfo;
+    scrambledInfo.mLength = size;
+    scrambledInfo.mKeyId = keyId;
+    scrambledInfo.mIsSync = isSync;
+    scrambledInfo.mClearSizes = clearSizes;
+    scrambledInfo.mEncSizes = encSizes;
+
+    ALOGV("[stream %d] appending scrambled range: size=%zu", mMode, size);
+
+    mScrambledRangeInfos.push_back(scrambledInfo);
+}
+
+sp<ABuffer> ElementaryStreamQueue::dequeueScrambledAccessUnit() {
+    size_t nextScan = mBuffer->size();
+    mBuffer->setRange(0, 0);
+    int32_t pesOffset = 0, pesScramblingControl = 0;
+    int64_t timeUs = fetchTimestamp(nextScan, &pesOffset, &pesScramblingControl);
+    if (timeUs < 0ll) {
+        ALOGE("Negative timeUs");
+        return NULL;
+    }
+
+    // return scrambled unit
+    int32_t keyId = pesScramblingControl, isSync = 0, scrambledLength = 0;
+    sp<ABuffer> clearSizes, encSizes;
+    while (mScrambledRangeInfos.size() > mRangeInfos.size()) {
+        auto it = mScrambledRangeInfos.begin();
+        ALOGV("[stream %d] fetching scrambled range: size=%zu", mMode, it->mLength);
+
+        if (scrambledLength > 0) {
+            // This shouldn't happen since we always dequeue the entire PES.
+            ALOGW("Discarding srambled length %d", scrambledLength);
+        }
+        scrambledLength = it->mLength;
+
+        // TODO: handle key id change, use first non-zero keyId for now
+        if (keyId == 0) {
+            keyId = it->mKeyId;
+        }
+        clearSizes = it->mClearSizes;
+        encSizes = it->mEncSizes;
+        isSync = it->mIsSync;
+        mScrambledRangeInfos.erase(it);
+    }
+    if (scrambledLength == 0) {
+        ALOGE("[stream %d] empty scrambled unit!", mMode);
+        return NULL;
+    }
+
+    // skip the PES header, and copy the rest into scrambled access unit
+    sp<ABuffer> scrambledAccessUnit = ABuffer::CreateAsCopy(
+            mScrambledBuffer->data() + pesOffset,
+            scrambledLength - pesOffset);
+
+    // fix up first sample size after skipping the PES header
+    if (pesOffset > 0) {
+        int32_t &firstClearSize = *(int32_t*)clearSizes->data();
+        int32_t &firstEncSize = *(int32_t*)encSizes->data();
+        // Cut away the PES header
+        if (firstClearSize >= pesOffset) {
+            // This is for TS-level scrambling, we descrambled the first
+            // (or it was clear to begin with)
+            firstClearSize -= pesOffset;
+        } else if (firstEncSize >= pesOffset) {
+            // This can only be PES-level scrambling
+            firstEncSize -= pesOffset;
+        }
+    }
+
+    scrambledAccessUnit->meta()->setInt64("timeUs", timeUs);
+    if (isSync) {
+        scrambledAccessUnit->meta()->setInt32("isSync", 1);
+    }
+
+    // fill in CryptoInfo fields for AnotherPacketSource::read()
+    // MediaCas doesn't use cryptoMode, but set to non-zero value here.
+    scrambledAccessUnit->meta()->setInt32(
+            "cryptoMode", CryptoPlugin::kMode_AES_CBC);
+    scrambledAccessUnit->meta()->setInt32("cryptoKey", keyId);
+    scrambledAccessUnit->meta()->setBuffer("clearBytes", clearSizes);
+    scrambledAccessUnit->meta()->setBuffer("encBytes", encSizes);
+
+    memmove(mScrambledBuffer->data(),
+            mScrambledBuffer->data() + scrambledLength,
+            mScrambledBuffer->size() - scrambledLength);
+
+    mScrambledBuffer->setRange(0, mScrambledBuffer->size() - scrambledLength);
+
+    ALOGV("[stream %d] dequeued scrambled AU: timeUs=%lld, size=%zu",
+            mMode, (long long)timeUs, scrambledAccessUnit->size());
+
+    return scrambledAccessUnit;
+}
+
 sp<ABuffer> ElementaryStreamQueue::dequeueAccessUnit() {
-    if ((mFlags & kFlag_AlignedData) && mMode == H264) {
+    if ((mFlags & kFlag_AlignedData) && mMode == H264 && !isScrambled()) {
         if (mRangeInfos.empty()) {
             return NULL;
         }
@@ -751,7 +882,8 @@
     return accessUnit;
 }
 
-int64_t ElementaryStreamQueue::fetchTimestamp(size_t size) {
+int64_t ElementaryStreamQueue::fetchTimestamp(
+        size_t size, int32_t *pesOffset, int32_t *pesScramblingControl) {
     int64_t timeUs = -1;
     bool first = true;
 
@@ -764,6 +896,12 @@
 
         if (first) {
             timeUs = info->mTimestampUs;
+            if (pesOffset != NULL) {
+                *pesOffset = info->mPesOffset;
+            }
+            if (pesScramblingControl != NULL) {
+                *pesScramblingControl = info->mPesScramblingControl;
+            }
             first = false;
         }
 
@@ -787,6 +925,25 @@
 }
 
 sp<ABuffer> ElementaryStreamQueue::dequeueAccessUnitH264() {
+    if (isScrambled()) {
+        if (mBuffer == NULL || mBuffer->size() == 0) {
+            return NULL;
+        }
+        if (mFormat == NULL) {
+            mFormat = MakeAVCCodecSpecificData(mBuffer);
+            if (mFormat == NULL) {
+                ALOGI("Creating dummy AVC format for scrambled content");
+                mFormat = new MetaData;
+                mFormat->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_AVC);
+                mFormat->setInt32(kKeyWidth, 1280);
+                mFormat->setInt32(kKeyHeight, 720);
+            }
+            // for DrmInitData
+            mFormat->setData(kKeyCas, 0, mCasSessionId.data(), mCasSessionId.size());
+        }
+        return dequeueScrambledAccessUnit();
+    }
+
     const uint8_t *data = mBuffer->data();
 
     size_t size = mBuffer->size();
@@ -1045,6 +1202,23 @@
 }
 
 sp<ABuffer> ElementaryStreamQueue::dequeueAccessUnitMPEGVideo() {
+    if (isScrambled()) {
+        if (mBuffer == NULL || mBuffer->size() == 0) {
+            return NULL;
+        }
+        if (mFormat == NULL) {
+            ALOGI("Creating dummy MPEG format for scrambled content");
+            mFormat = new MetaData;
+            mFormat->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_MPEG2);
+            mFormat->setInt32(kKeyWidth, 1280);
+            mFormat->setInt32(kKeyHeight, 720);
+
+            // for DrmInitData
+            mFormat->setData(kKeyCas, 0, mCasSessionId.data(), mCasSessionId.size());
+        }
+        return dequeueScrambledAccessUnit();
+    }
+
     const uint8_t *data = mBuffer->data();
     size_t size = mBuffer->size();
 
diff --git a/media/libstagefright/mpeg2ts/ESQueue.h b/media/libstagefright/mpeg2ts/ESQueue.h
index 56f0706..6941e3f 100644
--- a/media/libstagefright/mpeg2ts/ESQueue.h
+++ b/media/libstagefright/mpeg2ts/ESQueue.h
@@ -22,6 +22,7 @@
 #include <utils/Errors.h>
 #include <utils/List.h>
 #include <utils/RefBase.h>
+#include <vector>
 
 namespace android {
 
@@ -30,6 +31,7 @@
 
 struct ElementaryStreamQueue {
     enum Mode {
+        INVALID = 0,
         H264,
         AAC,
         AC3,
@@ -43,10 +45,19 @@
     enum Flags {
         // Data appended to the queue is always at access unit boundaries.
         kFlag_AlignedData = 1,
+        kFlag_ScrambledData = 2,
     };
     explicit ElementaryStreamQueue(Mode mode, uint32_t flags = 0);
 
-    status_t appendData(const void *data, size_t size, int64_t timeUs);
+    status_t appendData(const void *data, size_t size,
+            int64_t timeUs, int32_t payloadOffset = 0,
+            uint32_t pesScramblingControl = 0);
+
+    void appendScrambledData(
+            const void *data, size_t size,
+            int32_t keyId, bool isSync,
+            sp<ABuffer> clearSizes, sp<ABuffer> encSizes);
+
     void signalEOS();
     void clear(bool clearFormat);
 
@@ -54,10 +65,29 @@
 
     sp<MetaData> getFormat();
 
+    bool isScrambled() {
+        return (mFlags & kFlag_ScrambledData) != 0;
+    }
+
+    void setCasSession(const std::vector<uint8_t> &sessionId) {
+        mCasSessionId = sessionId;
+    }
+
 private:
     struct RangeInfo {
         int64_t mTimestampUs;
         size_t mLength;
+        int32_t mPesOffset;
+        uint32_t mPesScramblingControl;
+    };
+
+    struct ScrambledRangeInfo {
+        //int64_t mTimestampUs;
+        size_t mLength;
+        int32_t mKeyId;
+        int32_t mIsSync;
+        sp<ABuffer> mClearSizes;
+        sp<ABuffer> mEncSizes;
     };
 
     Mode mMode;
@@ -67,6 +97,10 @@
     sp<ABuffer> mBuffer;
     List<RangeInfo> mRangeInfos;
 
+    sp<ABuffer> mScrambledBuffer;
+    List<ScrambledRangeInfo> mScrambledRangeInfos;
+    std::vector<uint8_t> mCasSessionId;
+
     sp<MetaData> mFormat;
 
     sp<ABuffer> dequeueAccessUnitH264();
@@ -80,7 +114,11 @@
 
     // consume a logical (compressed) access unit of size "size",
     // returns its timestamp in us (or -1 if no time information).
-    int64_t fetchTimestamp(size_t size);
+    int64_t fetchTimestamp(size_t size,
+            int32_t *pesOffset = NULL,
+            int32_t *pesScramblingControl = NULL);
+
+    sp<ABuffer> dequeueScrambledAccessUnit();
 
     DISALLOW_EVIL_CONSTRUCTORS(ElementaryStreamQueue);
 };
diff --git a/media/libstagefright/mpeg2ts/MPEG2TSExtractor.cpp b/media/libstagefright/mpeg2ts/MPEG2TSExtractor.cpp
index fb5e079..c3f1274 100644
--- a/media/libstagefright/mpeg2ts/MPEG2TSExtractor.cpp
+++ b/media/libstagefright/mpeg2ts/MPEG2TSExtractor.cpp
@@ -26,6 +26,7 @@
 #include <media/stagefright/foundation/ABuffer.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/ALooper.h>
+#include <media/stagefright/foundation/AUtils.h>
 #include <media/stagefright/DataSource.h>
 #include <media/stagefright/MediaDefs.h>
 #include <media/stagefright/MediaErrors.h>
@@ -40,6 +41,8 @@
 namespace android {
 
 static const size_t kTSPacketSize = 188;
+static const int kMaxDurationReadSize = 250000LL;
+static const int kMaxDurationRetry = 6;
 
 struct MPEG2TSSource : public MediaSource {
     MPEG2TSSource(
@@ -145,12 +148,46 @@
     return meta;
 }
 
+//static
+bool MPEG2TSExtractor::isScrambledFormat(const sp<MetaData> &format) {
+    const char *mime;
+    return format->findCString(kKeyMIMEType, &mime)
+            && (!strcasecmp(MEDIA_MIMETYPE_VIDEO_SCRAMBLED, mime)
+                    || !strcasecmp(MEDIA_MIMETYPE_AUDIO_SCRAMBLED, mime));
+}
+
+status_t MPEG2TSExtractor::setMediaCas(const sp<ICas> &cas) {
+    ALOGD("setMediaCas: %p", cas.get());
+
+    status_t err = mParser->setMediaCas(cas);
+    if (err == OK) {
+        ALOGI("All tracks now have descramblers");
+        init();
+    }
+    return err;
+}
+
+void MPEG2TSExtractor::addSource(const sp<AnotherPacketSource> &impl) {
+    bool found = false;
+    for (size_t i = 0; i < mSourceImpls.size(); i++) {
+        if (mSourceImpls[i] == impl) {
+            found = true;
+            break;
+        }
+    }
+    if (!found) {
+        mSourceImpls.push(impl);
+    }
+}
+
 void MPEG2TSExtractor::init() {
     bool haveAudio = false;
     bool haveVideo = false;
     int64_t startTime = ALooper::GetNowUs();
 
-    while (feedMore(true /* isInit */) == OK) {
+    status_t err;
+    while ((err = feedMore(true /* isInit */)) == OK
+            || err == ERROR_DRM_DECRYPT_UNIT_NOT_INITIALIZED) {
         if (haveAudio && haveVideo) {
             addSyncPoint_l(mLastSyncEvent);
             mLastSyncEvent.reset();
@@ -162,10 +199,15 @@
                         ATSParser::VIDEO).get();
 
             if (impl != NULL) {
-                haveVideo = true;
-                mSourceImpls.push(impl);
-                mSyncPoints.push();
-                mSeekSyncPoints = &mSyncPoints.editTop();
+                sp<MetaData> format = impl->getFormat();
+                if (format != NULL) {
+                    haveVideo = true;
+                    addSource(impl);
+                    if (!isScrambledFormat(format)) {
+                        mSyncPoints.push();
+                        mSeekSyncPoints = &mSyncPoints.editTop();
+                    }
+                }
             }
         }
 
@@ -175,11 +217,16 @@
                         ATSParser::AUDIO).get();
 
             if (impl != NULL) {
-                haveAudio = true;
-                mSourceImpls.push(impl);
-                mSyncPoints.push();
-                if (!haveVideo) {
-                    mSeekSyncPoints = &mSyncPoints.editTop();
+                sp<MetaData> format = impl->getFormat();
+                if (format != NULL) {
+                    haveAudio = true;
+                    addSource(impl);
+                    if (!isScrambledFormat(format)) {
+                        mSyncPoints.push();
+                        if (!haveVideo) {
+                            mSeekSyncPoints = &mSyncPoints.editTop();
+                        }
+                    }
                 }
             }
         }
@@ -187,6 +234,16 @@
         addSyncPoint_l(mLastSyncEvent);
         mLastSyncEvent.reset();
 
+        // ERROR_DRM_DECRYPT_UNIT_NOT_INITIALIZED is returned when the mpeg2ts
+        // is scrambled but we don't have a MediaCas object set. The extraction
+        // will only continue when setMediaCas() is called successfully.
+        if (err == ERROR_DRM_DECRYPT_UNIT_NOT_INITIALIZED) {
+            ALOGI("stopped parsing scrambled content, "
+                  "haveAudio=%d, haveVideo=%d, elaspedTime=%" PRId64,
+                    haveAudio, haveVideo, ALooper::GetNowUs() - startTime);
+            return;
+        }
+
         // Wait only for 2 seconds to detect audio/video streams.
         if (ALooper::GetNowUs() - startTime > 2000000ll) {
             break;
@@ -212,23 +269,22 @@
                         - mSeekSyncPoints->keyAt(0);
                 off64_t diffOffset = mSeekSyncPoints->valueAt(prevSyncSize - 1)
                         - mSeekSyncPoints->valueAt(0);
-                durationUs = size * diffUs / diffOffset;
-                durations.push_back(durationUs);
+                int64_t currentDurationUs = size * diffUs / diffOffset;
+                durations.push_back(currentDurationUs);
                 if (durations.size() > 5) {
                     durations.erase(durations.begin());
                     int64_t min = *durations.begin();
                     int64_t max = *durations.begin();
-                    for (List<int64_t>::iterator i = durations.begin();
-                            i != durations.end();
-                            ++i) {
-                        if (min > *i) {
-                            min = *i;
+                    for (auto duration : durations) {
+                        if (min > duration) {
+                            min = duration;
                         }
-                        if (max < *i) {
-                            max = *i;
+                        if (max < duration) {
+                            max = duration;
                         }
                     }
                     if (max - min < 500 * 1000) {
+                        durationUs = currentDurationUs;
                         break;
                     }
                 }
@@ -244,6 +300,8 @@
             const sp<MetaData> meta = impl->getFormat();
             meta->setInt64(kKeyDuration, durationUs);
             impl->setFormat(meta);
+        } else {
+            estimateDurationsFromTimesUsAtEnd();
         }
     }
 
@@ -302,6 +360,106 @@
     }
 }
 
+status_t MPEG2TSExtractor::estimateDurationsFromTimesUsAtEnd()  {
+    if (!(mDataSource->flags() & DataSource::kIsLocalFileSource)) {
+        return ERROR_UNSUPPORTED;
+    }
+
+    off64_t size = 0;
+    status_t err = mDataSource->getSize(&size);
+    if (err != OK) {
+        return err;
+    }
+
+    uint8_t packet[kTSPacketSize];
+    const off64_t zero = 0;
+    off64_t offset = max(zero, size - kMaxDurationReadSize);
+    if (mDataSource->readAt(offset, &packet, 0) < 0) {
+        return ERROR_IO;
+    }
+
+    int retry = 0;
+    bool allDurationsFound = false;
+    int64_t timeAnchorUs = mParser->getFirstPTSTimeUs();
+    do {
+        int bytesRead = 0;
+        sp<ATSParser> parser = new ATSParser(ATSParser::TS_TIMESTAMPS_ARE_ABSOLUTE);
+        ATSParser::SyncEvent ev(0);
+        offset = max(zero, size - (kMaxDurationReadSize << retry));
+        offset = (offset / kTSPacketSize) * kTSPacketSize;
+        for (;;) {
+            if (bytesRead >= kMaxDurationReadSize << max(0, retry - 1)) {
+                break;
+            }
+
+            ssize_t n = mDataSource->readAt(offset, packet, kTSPacketSize);
+            if (n < 0) {
+                return n;
+            } else if (n < (ssize_t)kTSPacketSize) {
+                break;
+            }
+
+            offset += kTSPacketSize;
+            bytesRead += kTSPacketSize;
+            err = parser->feedTSPacket(packet, kTSPacketSize, &ev);
+            if (err != OK) {
+                return err;
+            }
+
+            if (ev.hasReturnedData()) {
+                int64_t durationUs = ev.getTimeUs();
+                ATSParser::SourceType type = ev.getType();
+                ev.reset();
+
+                int64_t firstTimeUs;
+                sp<AnotherPacketSource> src =
+                    (AnotherPacketSource *)mParser->getSource(type).get();
+                if (src == NULL || src->nextBufferTime(&firstTimeUs) != OK) {
+                    continue;
+                }
+                durationUs += src->getEstimatedBufferDurationUs();
+                durationUs -= timeAnchorUs;
+                durationUs -= firstTimeUs;
+                if (durationUs > 0) {
+                    int64_t origDurationUs, lastDurationUs;
+                    const sp<MetaData> meta = src->getFormat();
+                    const uint32_t kKeyLastDuration = 'ldur';
+                    // Require two consecutive duration calculations to be within 1 sec before
+                    // updating; use MetaData to store previous duration estimate in per-stream
+                    // context.
+                    if (!meta->findInt64(kKeyDuration, &origDurationUs)
+                            || !meta->findInt64(kKeyLastDuration, &lastDurationUs)
+                            || (origDurationUs < durationUs
+                             && abs(durationUs - lastDurationUs) < 60000000)) {
+                        meta->setInt64(kKeyDuration, durationUs);
+                    }
+                    meta->setInt64(kKeyLastDuration, durationUs);
+                }
+            }
+        }
+
+        if (!allDurationsFound) {
+            allDurationsFound = true;
+            for (auto t: {ATSParser::VIDEO, ATSParser::AUDIO}) {
+                sp<AnotherPacketSource> src = (AnotherPacketSource *)mParser->getSource(t).get();
+                if (src == NULL) {
+                    continue;
+                }
+                int64_t durationUs;
+                const sp<MetaData> meta = src->getFormat();
+                if (!meta->findInt64(kKeyDuration, &durationUs)) {
+                    allDurationsFound = false;
+                    break;
+                }
+            }
+        }
+
+        ++retry;
+    } while(!allDurationsFound && offset > 0 && retry <= kMaxDurationRetry);
+
+    return allDurationsFound? OK : ERROR_UNSUPPORTED;
+}
+
 uint32_t MPEG2TSExtractor::flags() const {
     return CAN_PAUSE | CAN_SEEK_BACKWARD | CAN_SEEK_FORWARD;
 }
diff --git a/media/libstagefright/omx/Android.mk b/media/libstagefright/omx/Android.mk
index 8cbfc0d..9cba3d0 100644
--- a/media/libstagefright/omx/Android.mk
+++ b/media/libstagefright/omx/Android.mk
@@ -4,6 +4,7 @@
 LOCAL_SRC_FILES:=                     \
         FrameDropper.cpp              \
         GraphicBufferSource.cpp       \
+        BWGraphicBufferSource.cpp      \
         OMX.cpp                       \
         OMXMaster.cpp                 \
         OMXNodeInstance.cpp           \
@@ -17,7 +18,8 @@
 LOCAL_C_INCLUDES += \
         $(TOP)/frameworks/av/media/libstagefright \
         $(TOP)/frameworks/native/include/media/hardware \
-        $(TOP)/frameworks/native/include/media/openmax
+        $(TOP)/frameworks/native/include/media/openmax \
+        $(TOP)/system/libhidl/base/include \
 
 LOCAL_SHARED_LIBRARIES :=               \
         libbinder                       \
@@ -28,15 +30,22 @@
         libgui                          \
         libcutils                       \
         libstagefright_foundation       \
-        libdl
+        libdl                           \
+        libhidlbase                     \
+        libhidlmemory                   \
+        android.hidl.memory@1.0         \
+
+LOCAL_EXPORT_SHARED_LIBRARY_HEADERS := \
+        android.hidl.memory@1.0
 
 LOCAL_MODULE:= libstagefright_omx
 LOCAL_CFLAGS += -Werror -Wall
-LOCAL_CLANG := true
-LOCAL_SANITIZE := unsigned-integer-overflow signed-integer-overflow
+LOCAL_SANITIZE := unsigned-integer-overflow signed-integer-overflow cfi
+LOCAL_SANITIZE_DIAG := cfi
 
 include $(BUILD_SHARED_LIBRARY)
 
 ################################################################################
 
+include $(call all-makefiles-under,$(LOCAL_PATH)/hal)
 include $(call all-makefiles-under,$(LOCAL_PATH))
diff --git a/media/libstagefright/omx/BWGraphicBufferSource.cpp b/media/libstagefright/omx/BWGraphicBufferSource.cpp
new file mode 100644
index 0000000..4e0f6dd
--- /dev/null
+++ b/media/libstagefright/omx/BWGraphicBufferSource.cpp
@@ -0,0 +1,177 @@
+/*
+ * Copyright 2017, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "BWGraphicBufferSource"
+
+#include <OMX_Component.h>
+#include <OMX_IndexExt.h>
+
+#include <media/OMXBuffer.h>
+#include <IOMX.h>
+
+#include "OMXUtils.h"
+#include "BWGraphicBufferSource.h"
+
+namespace android {
+
+static const OMX_U32 kPortIndexInput = 0;
+
+struct BWGraphicBufferSource::BWOmxNodeWrapper : public IOmxNodeWrapper {
+    sp<IOMXNode> mOMXNode;
+
+    BWOmxNodeWrapper(const sp<IOMXNode> &omxNode): mOMXNode(omxNode) {
+    }
+
+    virtual status_t emptyBuffer(
+            int32_t bufferId, uint32_t flags,
+            const sp<GraphicBuffer> &buffer,
+            int64_t timestamp, int fenceFd) override {
+        return mOMXNode->emptyBuffer(bufferId, buffer, flags, timestamp, fenceFd);
+    }
+
+    virtual void dispatchDataSpaceChanged(
+            int32_t dataSpace, int32_t aspects, int32_t pixelFormat) override {
+        omx_message msg;
+        msg.type = omx_message::EVENT;
+        msg.fenceFd = -1;
+        msg.u.event_data.event = OMX_EventDataSpaceChanged;
+        msg.u.event_data.data1 = dataSpace;
+        msg.u.event_data.data2 = aspects;
+        msg.u.event_data.data3 = pixelFormat;
+        mOMXNode->dispatchMessage(msg);
+    }
+};
+
+struct BWGraphicBufferSource::BWOMXBufferSource : public BnOMXBufferSource {
+    sp<GraphicBufferSource> mSource;
+
+    BWOMXBufferSource(const sp<GraphicBufferSource> &source): mSource(source) {
+    }
+
+    Status onOmxExecuting() override {
+        return mSource->onOmxExecuting();
+    }
+
+    Status onOmxIdle() override {
+        return mSource->onOmxIdle();
+    }
+
+    Status onOmxLoaded() override {
+        return mSource->onOmxLoaded();
+    }
+
+    Status onInputBufferAdded(int bufferId) override {
+        return mSource->onInputBufferAdded(bufferId);
+    }
+
+    Status onInputBufferEmptied(
+            int bufferId, const OMXFenceParcelable& fenceParcel) override {
+        return mSource->onInputBufferEmptied(bufferId, fenceParcel.get());
+    }
+};
+
+BWGraphicBufferSource::BWGraphicBufferSource(
+        sp<GraphicBufferSource> const& base) :
+    mBase(base),
+    mOMXBufferSource(new BWOMXBufferSource(base)) {
+}
+
+::android::binder::Status BWGraphicBufferSource::configure(
+        const sp<IOMXNode>& omxNode, int32_t dataSpace) {
+    // Do setInputSurface() first, the node will try to enable metadata
+    // mode on input, and does necessary error checking. If this fails,
+    // we can't use this input surface on the node.
+    status_t err = omxNode->setInputSurface(mOMXBufferSource);
+    if (err != NO_ERROR) {
+        ALOGE("Unable to set input surface: %d", err);
+        return Status::fromStatusT(err);
+    }
+
+    // use consumer usage bits queried from encoder, but always add
+    // HW_VIDEO_ENCODER for backward compatibility.
+    uint32_t consumerUsage;
+    if (omxNode->getParameter(
+            (OMX_INDEXTYPE)OMX_IndexParamConsumerUsageBits,
+            &consumerUsage, sizeof(consumerUsage)) != OK) {
+        consumerUsage = 0;
+    }
+
+    OMX_PARAM_PORTDEFINITIONTYPE def;
+    InitOMXParams(&def);
+    def.nPortIndex = kPortIndexInput;
+
+    err = omxNode->getParameter(
+            OMX_IndexParamPortDefinition, &def, sizeof(def));
+    if (err != NO_ERROR) {
+        ALOGE("Failed to get port definition: %d", err);
+        return Status::fromStatusT(UNKNOWN_ERROR);
+    }
+
+    return Status::fromStatusT(mBase->configure(
+              new BWOmxNodeWrapper(omxNode),
+              dataSpace,
+              def.nBufferCountActual,
+              def.format.video.nFrameWidth,
+              def.format.video.nFrameHeight,
+              consumerUsage));
+}
+
+::android::binder::Status BWGraphicBufferSource::setSuspend(
+        bool suspend, int64_t timeUs) {
+    return Status::fromStatusT(mBase->setSuspend(suspend, timeUs));
+}
+
+::android::binder::Status BWGraphicBufferSource::setRepeatPreviousFrameDelayUs(
+        int64_t repeatAfterUs) {
+    return Status::fromStatusT(mBase->setRepeatPreviousFrameDelayUs(repeatAfterUs));
+}
+
+::android::binder::Status BWGraphicBufferSource::setMaxFps(float maxFps) {
+    return Status::fromStatusT(mBase->setMaxFps(maxFps));
+}
+
+::android::binder::Status BWGraphicBufferSource::setTimeLapseConfig(
+        int64_t timePerFrameUs, int64_t timePerCaptureUs) {
+    return Status::fromStatusT(mBase->setTimeLapseConfig(
+            timePerFrameUs, timePerCaptureUs));
+}
+
+::android::binder::Status BWGraphicBufferSource::setStartTimeUs(
+        int64_t startTimeUs) {
+    return Status::fromStatusT(mBase->setStartTimeUs(startTimeUs));
+}
+
+::android::binder::Status BWGraphicBufferSource::setStopTimeUs(
+        int64_t stopTimeUs) {
+    return Status::fromStatusT(mBase->setStopTimeUs(stopTimeUs));
+}
+
+::android::binder::Status BWGraphicBufferSource::setColorAspects(
+        int32_t aspects) {
+    return Status::fromStatusT(mBase->setColorAspects(aspects));
+}
+
+::android::binder::Status BWGraphicBufferSource::setTimeOffsetUs(
+        int64_t timeOffsetsUs) {
+    return Status::fromStatusT(mBase->setTimeOffsetUs(timeOffsetsUs));
+}
+
+::android::binder::Status BWGraphicBufferSource::signalEndOfInputStream() {
+    return Status::fromStatusT(mBase->signalEndOfInputStream());
+}
+
+}  // namespace android
diff --git a/media/libstagefright/omx/BWGraphicBufferSource.h b/media/libstagefright/omx/BWGraphicBufferSource.h
new file mode 100644
index 0000000..f1ce2af
--- /dev/null
+++ b/media/libstagefright/omx/BWGraphicBufferSource.h
@@ -0,0 +1,63 @@
+/*
+ * Copyright 2017, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef BWGRAPHIC_BUFFER_SOURCE_H_
+#define BWGRAPHIC_BUFFER_SOURCE_H_
+
+#include <binder/Binder.h>
+#include <binder/Status.h>
+#include <android/BnGraphicBufferSource.h>
+#include <android/BnOMXBufferSource.h>
+#include <IOMX.h>
+
+#include "GraphicBufferSource.h"
+#include "IOmxNodeWrapper.h"
+
+namespace android {
+
+using ::android::binder::Status;
+using ::android::BnGraphicBufferSource;
+using ::android::GraphicBufferSource;
+using ::android::IOMXNode;
+using ::android::sp;
+
+struct BWGraphicBufferSource : public BnGraphicBufferSource {
+    struct BWOMXBufferSource;
+    struct BWOmxNodeWrapper;
+
+    sp<GraphicBufferSource> mBase;
+    sp<IOMXBufferSource> mOMXBufferSource;
+
+    BWGraphicBufferSource(sp<GraphicBufferSource> const &base);
+
+    Status configure(
+            const sp<IOMXNode>& omxNode, int32_t dataSpace) override;
+    Status setSuspend(bool suspend, int64_t timeUs) override;
+    Status setRepeatPreviousFrameDelayUs(
+            int64_t repeatAfterUs) override;
+    Status setMaxFps(float maxFps) override;
+    Status setTimeLapseConfig(
+            int64_t timePerFrameUs, int64_t timePerCaptureUs) override;
+    Status setStartTimeUs(int64_t startTimeUs) override;
+    Status setStopTimeUs(int64_t stopTimeUs) override;
+    Status setColorAspects(int32_t aspects) override;
+    Status setTimeOffsetUs(int64_t timeOffsetsUs) override;
+    Status signalEndOfInputStream() override;
+};
+
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_MEDIA_OMX_V1_0_WGRAPHICBUFFERSOURCE_H
diff --git a/media/libstagefright/omx/GraphicBufferSource.cpp b/media/libstagefright/omx/GraphicBufferSource.cpp
index 267f24d..793ecb8 100644
--- a/media/libstagefright/omx/GraphicBufferSource.cpp
+++ b/media/libstagefright/omx/GraphicBufferSource.cpp
@@ -23,10 +23,6 @@
 #define STRINGIFY_ENUMS // for asString in HardwareAPI.h/VideoAPI.h
 
 #include "GraphicBufferSource.h"
-#include "OMXUtils.h"
-
-#include <OMX_Core.h>
-#include <OMX_IndexExt.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/AMessage.h>
 #include <media/stagefright/foundation/ColorUtils.h>
@@ -35,108 +31,33 @@
 #include <ui/GraphicBuffer.h>
 #include <gui/BufferItem.h>
 #include <HardwareAPI.h>
+#include "omx/OMXUtils.h"
+#include <OMX_Component.h>
+#include <OMX_IndexExt.h>
+#include "OMXBuffer.h"
 
 #include <inttypes.h>
 #include "FrameDropper.h"
 
 namespace android {
 
-static const bool EXTRA_CHECK = true;
-
-static const OMX_U32 kPortIndexInput = 0;
-
-GraphicBufferSource::PersistentProxyListener::PersistentProxyListener(
-        const wp<IGraphicBufferConsumer> &consumer,
-        const wp<ConsumerListener>& consumerListener) :
-    mConsumerListener(consumerListener),
-    mConsumer(consumer) {}
-
-GraphicBufferSource::PersistentProxyListener::~PersistentProxyListener() {}
-
-void GraphicBufferSource::PersistentProxyListener::onFrameAvailable(
-        const BufferItem& item) {
-    sp<ConsumerListener> listener(mConsumerListener.promote());
-    if (listener != NULL) {
-        listener->onFrameAvailable(item);
-    } else {
-        sp<IGraphicBufferConsumer> consumer(mConsumer.promote());
-        if (consumer == NULL) {
-            return;
-        }
-        BufferItem bi;
-        status_t err = consumer->acquireBuffer(&bi, 0);
-        if (err != OK) {
-            ALOGE("PersistentProxyListener: acquireBuffer failed (%d)", err);
-            return;
-        }
-
-        err = consumer->detachBuffer(bi.mSlot);
-        if (err != OK) {
-            ALOGE("PersistentProxyListener: detachBuffer failed (%d)", err);
-            return;
-        }
-
-        err = consumer->attachBuffer(&bi.mSlot, bi.mGraphicBuffer);
-        if (err != OK) {
-            ALOGE("PersistentProxyListener: attachBuffer failed (%d)", err);
-            return;
-        }
-
-        err = consumer->releaseBuffer(bi.mSlot, 0,
-                EGL_NO_DISPLAY, EGL_NO_SYNC_KHR, bi.mFence);
-        if (err != OK) {
-            ALOGE("PersistentProxyListener: releaseBuffer failed (%d)", err);
-        }
-    }
-}
-
-void GraphicBufferSource::PersistentProxyListener::onFrameReplaced(
-        const BufferItem& item) {
-    sp<ConsumerListener> listener(mConsumerListener.promote());
-    if (listener != NULL) {
-        listener->onFrameReplaced(item);
-    }
-}
-
-void GraphicBufferSource::PersistentProxyListener::onBuffersReleased() {
-    sp<ConsumerListener> listener(mConsumerListener.promote());
-    if (listener != NULL) {
-        listener->onBuffersReleased();
-    }
-}
-
-void GraphicBufferSource::PersistentProxyListener::onSidebandStreamChanged() {
-    sp<ConsumerListener> listener(mConsumerListener.promote());
-    if (listener != NULL) {
-        listener->onSidebandStreamChanged();
-    }
-}
-
-GraphicBufferSource::GraphicBufferSource(
-        OMXNodeInstance* nodeInstance,
-        uint32_t bufferWidth,
-        uint32_t bufferHeight,
-        uint32_t bufferCount,
-        uint32_t consumerUsage,
-        const sp<IGraphicBufferConsumer> &consumer) :
+GraphicBufferSource::GraphicBufferSource() :
     mInitCheck(UNKNOWN_ERROR),
-    mNodeInstance(nodeInstance),
     mExecuting(false),
     mSuspended(false),
+    mStopTimeUs(-1),
     mLastDataSpace(HAL_DATASPACE_UNKNOWN),
-    mIsPersistent(false),
-    mConsumer(consumer),
     mNumFramesAvailable(0),
     mNumBufferAcquired(0),
     mEndOfStream(false),
     mEndOfStreamSent(false),
-    mMaxTimestampGapUs(-1ll),
+    mLastActionTimeUs(-1ll),
     mPrevOriginalTimeUs(-1ll),
-    mPrevModifiedTimeUs(-1ll),
     mSkipFramesBeforeNs(-1ll),
     mRepeatAfterUs(-1ll),
     mRepeatLastFrameGeneration(0),
     mRepeatLastFrameTimestamp(-1ll),
+    mRepeatLastFrameCount(0),
     mLatestBufferId(-1),
     mLatestBufferFrameNum(0),
     mLatestBufferFence(Fence::NO_FENCE),
@@ -146,48 +67,21 @@
     mPrevCaptureUs(-1ll),
     mPrevFrameUs(-1ll),
     mInputBufferTimeOffsetUs(0ll) {
+    ALOGV("GraphicBufferSource");
 
-    ALOGV("GraphicBufferSource w=%u h=%u c=%u",
-            bufferWidth, bufferHeight, bufferCount);
+    String8 name("GraphicBufferSource");
 
-    if (bufferWidth == 0 || bufferHeight == 0) {
-        ALOGE("Invalid dimensions %ux%u", bufferWidth, bufferHeight);
-        mInitCheck = BAD_VALUE;
-        return;
-    }
+    BufferQueue::createBufferQueue(&mProducer, &mConsumer);
+    mConsumer->setConsumerName(name);
 
-    if (mConsumer == NULL) {
-        String8 name("GraphicBufferSource");
-
-        BufferQueue::createBufferQueue(&mProducer, &mConsumer);
-        mConsumer->setConsumerName(name);
-
-        // use consumer usage bits queried from encoder, but always add HW_VIDEO_ENCODER
-        // for backward compatibility.
-        consumerUsage |= GRALLOC_USAGE_HW_VIDEO_ENCODER;
-        mConsumer->setConsumerUsageBits(consumerUsage);
-
-        mInitCheck = mConsumer->setMaxAcquiredBufferCount(bufferCount);
-        if (mInitCheck != NO_ERROR) {
-            ALOGE("Unable to set BQ max acquired buffer count to %u: %d",
-                    bufferCount, mInitCheck);
-            return;
-        }
-    } else {
-        mIsPersistent = true;
-    }
-    mConsumer->setDefaultBufferSize(bufferWidth, bufferHeight);
     // Note that we can't create an sp<...>(this) in a ctor that will not keep a
     // reference once the ctor ends, as that would cause the refcount of 'this'
     // dropping to 0 at the end of the ctor.  Since all we need is a wp<...>
     // that's what we create.
-    wp<BufferQueue::ConsumerListener> listener = static_cast<BufferQueue::ConsumerListener*>(this);
-    sp<IConsumerListener> proxy;
-    if (!mIsPersistent) {
-        proxy = new BufferQueue::ProxyConsumerListener(listener);
-    } else {
-        proxy = new PersistentProxyListener(mConsumer, listener);
-    }
+    wp<BufferQueue::ConsumerListener> listener =
+            static_cast<BufferQueue::ConsumerListener*>(this);
+    sp<IConsumerListener> proxy =
+            new BufferQueue::ProxyConsumerListener(listener);
 
     mInitCheck = mConsumer->consumerConnect(proxy, false);
     if (mInitCheck != NO_ERROR) {
@@ -196,21 +90,20 @@
         return;
     }
 
-    memset(&mColorAspects, 0, sizeof(mColorAspects));
+    memset(&mColorAspectsPacked, 0, sizeof(mColorAspectsPacked));
 
     CHECK(mInitCheck == NO_ERROR);
 }
 
 GraphicBufferSource::~GraphicBufferSource() {
+    ALOGV("~GraphicBufferSource");
     if (mLatestBufferId >= 0) {
-        releaseBuffer(
-                mLatestBufferId, mLatestBufferFrameNum,
-                mBufferSlot[mLatestBufferId], mLatestBufferFence);
+        releaseBuffer(mLatestBufferId, mLatestBufferFrameNum, mLatestBufferFence);
     }
     if (mNumBufferAcquired != 0) {
         ALOGW("potential buffer leak (acquired %d)", mNumBufferAcquired);
     }
-    if (mConsumer != NULL && !mIsPersistent) {
+    if (mConsumer != NULL) {
         status_t err = mConsumer->consumerDisconnect();
         if (err != NO_ERROR) {
             ALOGW("consumerDisconnect failed: %d", err);
@@ -218,7 +111,7 @@
     }
 }
 
-void GraphicBufferSource::omxExecuting() {
+Status GraphicBufferSource::onOmxExecuting() {
     Mutex::Autolock autoLock(mMutex);
     ALOGV("--> executing; avail=%zu, codec vec size=%zd",
             mNumFramesAvailable, mCodecBuffers.size());
@@ -248,7 +141,7 @@
 
     // If EOS has already been signaled, and there are no more frames to
     // submit, try to send EOS now as well.
-    if (mEndOfStream && mNumFramesAvailable == 0) {
+    if (mStopTimeUs == -1 && mEndOfStream && mNumFramesAvailable == 0) {
         submitEndOfInputStream_l();
     }
 
@@ -267,9 +160,11 @@
             msg->post(mRepeatAfterUs);
         }
     }
+
+    return Status::ok();
 }
 
-void GraphicBufferSource::omxIdle() {
+Status GraphicBufferSource::onOmxIdle() {
     ALOGV("omxIdle");
 
     Mutex::Autolock autoLock(mMutex);
@@ -279,9 +174,10 @@
         // not loaded->idle.
         mExecuting = false;
     }
+    return Status::ok();
 }
 
-void GraphicBufferSource::omxLoaded(){
+Status GraphicBufferSource::onOmxLoaded(){
     Mutex::Autolock autoLock(mMutex);
     if (!mExecuting) {
         // This can happen if something failed very early.
@@ -296,53 +192,75 @@
         mLooper.clear();
     }
 
-    ALOGV("--> loaded; avail=%zu eos=%d eosSent=%d",
-            mNumFramesAvailable, mEndOfStream, mEndOfStreamSent);
+    ALOGV("--> loaded; avail=%zu eos=%d eosSent=%d acquired=%d",
+            mNumFramesAvailable, mEndOfStream, mEndOfStreamSent, mNumBufferAcquired);
 
-    // Codec is no longer executing.  Discard all codec-related state.
+    // Codec is no longer executing.  Releasing all buffers to bq.
+    for (int i = (int)mCodecBuffers.size() - 1; i >= 0; --i) {
+        if (mCodecBuffers[i].mGraphicBuffer != NULL) {
+            int id = mCodecBuffers[i].mSlot;
+            if (id != mLatestBufferId) {
+                ALOGV("releasing buffer for codec: slot=%d, useCount=%d, latest=%d",
+                        id, mBufferUseCount[id], mLatestBufferId);
+                sp<Fence> fence = new Fence(-1);
+                releaseBuffer(id, mCodecBuffers[i].mFrameNumber, fence);
+                mBufferUseCount[id] = 0;
+            }
+        }
+    }
+    // Also release the latest buffer
+    if (mLatestBufferId >= 0) {
+        releaseBuffer(mLatestBufferId, mLatestBufferFrameNum, mLatestBufferFence);
+        mBufferUseCount[mLatestBufferId] = 0;
+        mLatestBufferId = -1;
+    }
+
     mCodecBuffers.clear();
-    // TODO: scan mCodecBuffers to verify that all mGraphicBuffer entries
-    //       are null; complain if not
-
+    mOMXNode.clear();
     mExecuting = false;
+
+    return Status::ok();
 }
 
-void GraphicBufferSource::addCodecBuffer(OMX_BUFFERHEADERTYPE* header) {
+Status GraphicBufferSource::onInputBufferAdded(int32_t bufferID) {
     Mutex::Autolock autoLock(mMutex);
 
     if (mExecuting) {
         // This should never happen -- buffers can only be allocated when
         // transitioning from "loaded" to "idle".
         ALOGE("addCodecBuffer: buffer added while executing");
-        return;
+        return Status::fromServiceSpecificError(INVALID_OPERATION);
     }
 
-    ALOGV("addCodecBuffer h=%p size=%" PRIu32 " p=%p",
-            header, header->nAllocLen, header->pBuffer);
+    ALOGV("addCodecBuffer: bufferID=%u", bufferID);
+
     CodecBuffer codecBuffer;
-    codecBuffer.mHeader = header;
+    codecBuffer.mBufferID = bufferID;
     mCodecBuffers.add(codecBuffer);
+    return Status::ok();
 }
 
-void GraphicBufferSource::codecBufferEmptied(OMX_BUFFERHEADERTYPE* header, int fenceFd) {
+Status GraphicBufferSource::onInputBufferEmptied(
+        int32_t bufferID, int fenceFd) {
     Mutex::Autolock autoLock(mMutex);
     if (!mExecuting) {
-        return;
-    }
-
-    int cbi = findMatchingCodecBuffer_l(header);
-    if (cbi < 0) {
-        // This should never happen.
-        ALOGE("codecBufferEmptied: buffer not recognized (h=%p)", header);
         if (fenceFd >= 0) {
             ::close(fenceFd);
         }
-        return;
+        return Status::fromServiceSpecificError(INVALID_OPERATION);
     }
 
-    ALOGV("codecBufferEmptied h=%p size=%" PRIu32 " filled=%" PRIu32 " p=%p",
-            header, header->nAllocLen, header->nFilledLen,
-            header->pBuffer);
+    int cbi = findMatchingCodecBuffer_l(bufferID);
+    if (cbi < 0) {
+        // This should never happen.
+        ALOGE("codecBufferEmptied: buffer not recognized (bufferID=%u)", bufferID);
+        if (fenceFd >= 0) {
+            ::close(fenceFd);
+        }
+        return Status::fromServiceSpecificError(BAD_VALUE);
+    }
+
+    ALOGV("codecBufferEmptied: bufferID=%u, cbi=%d", bufferID, cbi);
     CodecBuffer& codecBuffer(mCodecBuffers.editItemAt(cbi));
 
     // header->nFilledLen may not be the original value, so we can't compare
@@ -361,33 +279,7 @@
         if (fenceFd >= 0) {
             ::close(fenceFd);
         }
-        return;
-    }
-
-    if (EXTRA_CHECK && header->nAllocLen >= sizeof(MetadataBufferType)) {
-        // Pull the graphic buffer handle back out of the buffer, and confirm
-        // that it matches expectations.
-        OMX_U8* data = header->pBuffer;
-        MetadataBufferType type = *(MetadataBufferType *)data;
-        if (type == kMetadataBufferTypeGrallocSource
-                && header->nAllocLen >= sizeof(VideoGrallocMetadata)) {
-            VideoGrallocMetadata &grallocMeta = *(VideoGrallocMetadata *)data;
-            if (grallocMeta.pHandle != codecBuffer.mGraphicBuffer->handle) {
-                // should never happen
-                ALOGE("codecBufferEmptied: buffer's handle is %p, expected %p",
-                        grallocMeta.pHandle, codecBuffer.mGraphicBuffer->handle);
-                CHECK(!"codecBufferEmptied: mismatched buffer");
-            }
-        } else if (type == kMetadataBufferTypeANWBuffer
-                && header->nAllocLen >= sizeof(VideoNativeMetadata)) {
-            VideoNativeMetadata &nativeMeta = *(VideoNativeMetadata *)data;
-            if (nativeMeta.pBuffer != codecBuffer.mGraphicBuffer->getNativeBuffer()) {
-                // should never happen
-                ALOGE("codecBufferEmptied: buffer is %p, expected %p",
-                        nativeMeta.pBuffer, codecBuffer.mGraphicBuffer->getNativeBuffer());
-                CHECK(!"codecBufferEmptied: mismatched buffer");
-            }
-        }
+        return Status::fromServiceSpecificError(BAD_VALUE);
     }
 
     // Find matching entry in our cached copy of the BufferQueue slots.
@@ -399,19 +291,19 @@
         mBufferSlot[id]->handle == codecBuffer.mGraphicBuffer->handle) {
         mBufferUseCount[id]--;
 
-        ALOGV("codecBufferEmptied: slot=%d, cbi=%d, useCount=%d, handle=%p",
-                id, cbi, mBufferUseCount[id], mBufferSlot[id]->handle);
-
         if (mBufferUseCount[id] < 0) {
             ALOGW("mBufferUseCount for bq slot %d < 0 (=%d)", id, mBufferUseCount[id]);
             mBufferUseCount[id] = 0;
         }
         if (id != mLatestBufferId && mBufferUseCount[id] == 0) {
-            releaseBuffer(id, codecBuffer.mFrameNumber, mBufferSlot[id], fence);
+            releaseBuffer(id, codecBuffer.mFrameNumber, fence);
         }
+        ALOGV("codecBufferEmptied: slot=%d, cbi=%d, useCount=%d, acquired=%d, handle=%p",
+                id, cbi, mBufferUseCount[id], mNumBufferAcquired, mBufferSlot[id]->handle);
     } else {
-        ALOGV("codecBufferEmptied: no match for emptied buffer in cbi %d",
-                cbi);
+        ALOGV("codecBufferEmptied: no match for emptied buffer, "
+                "slot=%d, cbi=%d, useCount=%d, acquired=%d",
+                id, cbi, mBufferUseCount[id], mNumBufferAcquired);
         // we will not reuse codec buffer, so there is no need to wait for fence
     }
 
@@ -424,8 +316,8 @@
         ALOGV("buffer freed, %zu frames avail (eos=%d)",
                 mNumFramesAvailable, mEndOfStream);
         fillCodecBuffer_l();
-    } else if (mEndOfStream) {
-        // No frames available, but EOS is pending, so use this buffer to
+    } else if (mEndOfStream && mStopTimeUs == -1) {
+        // No frames available, but EOS is pending and no stop time, so use this buffer to
         // send that.
         ALOGV("buffer freed, EOS pending");
         submitEndOfInputStream_l();
@@ -439,75 +331,7 @@
         mRepeatBufferDeferred = false;
     }
 
-    return;
-}
-
-void GraphicBufferSource::codecBufferFilled(OMX_BUFFERHEADERTYPE* header) {
-    Mutex::Autolock autoLock(mMutex);
-
-    if (mMaxTimestampGapUs > 0ll
-            && !(header->nFlags & OMX_BUFFERFLAG_CODECCONFIG)) {
-        ssize_t index = mOriginalTimeUs.indexOfKey(header->nTimeStamp);
-        if (index >= 0) {
-            ALOGV("OUT timestamp: %lld -> %lld",
-                    static_cast<long long>(header->nTimeStamp),
-                    static_cast<long long>(mOriginalTimeUs[index]));
-            header->nTimeStamp = mOriginalTimeUs[index];
-            mOriginalTimeUs.removeItemsAt(index);
-        } else {
-            // giving up the effort as encoder doesn't appear to preserve pts
-            ALOGW("giving up limiting timestamp gap (pts = %lld)",
-                    header->nTimeStamp);
-            mMaxTimestampGapUs = -1ll;
-        }
-        if (mOriginalTimeUs.size() > BufferQueue::NUM_BUFFER_SLOTS) {
-            // something terribly wrong must have happened, giving up...
-            ALOGE("mOriginalTimeUs has too many entries (%zu)",
-                    mOriginalTimeUs.size());
-            mMaxTimestampGapUs = -1ll;
-        }
-    }
-}
-
-void GraphicBufferSource::suspend(bool suspend) {
-    Mutex::Autolock autoLock(mMutex);
-
-    if (suspend) {
-        mSuspended = true;
-
-        while (mNumFramesAvailable > 0) {
-            BufferItem item;
-            status_t err = mConsumer->acquireBuffer(&item, 0);
-
-            if (err == BufferQueue::NO_BUFFER_AVAILABLE) {
-                // shouldn't happen.
-                ALOGW("suspend: frame was not available");
-                break;
-            } else if (err != OK) {
-                ALOGW("suspend: acquireBuffer returned err=%d", err);
-                break;
-            }
-
-            ++mNumBufferAcquired;
-            --mNumFramesAvailable;
-
-            releaseBuffer(item.mSlot, item.mFrameNumber,
-                    item.mGraphicBuffer, item.mFence);
-        }
-        return;
-    }
-
-    mSuspended = false;
-
-    if (mExecuting && mNumFramesAvailable == 0 && mRepeatBufferDeferred) {
-        if (repeatLatestBuffer_l()) {
-            ALOGV("suspend/deferred repeatLatestBuffer_l SUCCESS");
-
-            mRepeatBufferDeferred = false;
-        } else {
-            ALOGV("suspend/deferred repeatLatestBuffer_l FAILURE");
-        }
-    }
+    return Status::ok();
 }
 
 void GraphicBufferSource::onDataSpaceChanged_l(
@@ -516,74 +340,14 @@
     mLastDataSpace = dataSpace;
 
     if (ColorUtils::convertDataSpaceToV0(dataSpace)) {
-        ColorAspects aspects = mColorAspects; // initially requested aspects
-
-        // request color aspects to encode
-        OMX_INDEXTYPE index;
-        status_t err = mNodeInstance->getExtensionIndex(
-                "OMX.google.android.index.describeColorAspects", &index);
-        if (err == OK) {
-            // V0 dataspace
-            DescribeColorAspectsParams params;
-            InitOMXParams(&params);
-            params.nPortIndex = kPortIndexInput;
-            params.nDataSpace = mLastDataSpace;
-            params.nPixelFormat = pixelFormat;
-            params.bDataSpaceChanged = OMX_TRUE;
-            params.sAspects = mColorAspects;
-
-            err = mNodeInstance->getConfig(index, &params, sizeof(params));
-            if (err == OK) {
-                aspects = params.sAspects;
-                ALOGD("Codec resolved it to (R:%d(%s), P:%d(%s), M:%d(%s), T:%d(%s)) err=%d(%s)",
-                        params.sAspects.mRange, asString(params.sAspects.mRange),
-                        params.sAspects.mPrimaries, asString(params.sAspects.mPrimaries),
-                        params.sAspects.mMatrixCoeffs, asString(params.sAspects.mMatrixCoeffs),
-                        params.sAspects.mTransfer, asString(params.sAspects.mTransfer),
-                        err, asString(err));
-            } else {
-                params.sAspects = aspects;
-                err = OK;
-            }
-            params.bDataSpaceChanged = OMX_FALSE;
-            for (int triesLeft = 2; --triesLeft >= 0; ) {
-                status_t err = mNodeInstance->setConfig(index, &params, sizeof(params));
-                if (err == OK) {
-                    err = mNodeInstance->getConfig(index, &params, sizeof(params));
-                }
-                if (err != OK || !ColorUtils::checkIfAspectsChangedAndUnspecifyThem(
-                        params.sAspects, aspects)) {
-                    // if we can't set or get color aspects, still communicate dataspace to client
-                    break;
-                }
-
-                ALOGW_IF(triesLeft == 0, "Codec repeatedly changed requested ColorAspects.");
-            }
-        }
-
-        ALOGV("Set color aspects to (R:%d(%s), P:%d(%s), M:%d(%s), T:%d(%s)) err=%d(%s)",
-                aspects.mRange, asString(aspects.mRange),
-                aspects.mPrimaries, asString(aspects.mPrimaries),
-                aspects.mMatrixCoeffs, asString(aspects.mMatrixCoeffs),
-                aspects.mTransfer, asString(aspects.mTransfer),
-                err, asString(err));
-
-        // signal client that the dataspace has changed; this will update the output format
-        // TODO: we should tie this to an output buffer somehow, and signal the change
-        // just before the output buffer is returned to the client, but there are many
-        // ways this could fail (e.g. flushing), and we are not yet supporting this scenario.
-
-        mNodeInstance->signalEvent(
-                OMX_EventDataSpaceChanged, dataSpace,
-                (aspects.mRange << 24) | (aspects.mPrimaries << 16)
-                        | (aspects.mMatrixCoeffs << 8) | aspects.mTransfer);
+        mOMXNode->dispatchDataSpaceChanged(mLastDataSpace, mColorAspectsPacked, pixelFormat);
     }
 }
 
 bool GraphicBufferSource::fillCodecBuffer_l() {
     CHECK(mExecuting && mNumFramesAvailable > 0);
 
-    if (mSuspended) {
+    if (mSuspended && mActionQueue.empty()) {
         return false;
     }
 
@@ -598,26 +362,89 @@
     ALOGV("fillCodecBuffer_l: acquiring buffer, avail=%zu",
             mNumFramesAvailable);
     BufferItem item;
-    status_t err = mConsumer->acquireBuffer(&item, 0);
-    if (err == BufferQueue::NO_BUFFER_AVAILABLE) {
-        // shouldn't happen
-        ALOGW("fillCodecBuffer_l: frame was not available");
-        return false;
-    } else if (err != OK) {
-        // now what? fake end-of-stream?
-        ALOGW("fillCodecBuffer_l: acquireBuffer returned err=%d", err);
+    status_t err = acquireBuffer(&item);
+    if (err != OK) {
+        ALOGE("fillCodecBuffer_l: acquireBuffer returned err=%d", err);
         return false;
     }
 
-    mNumBufferAcquired++;
+    int64_t itemTimeUs = item.mTimestamp / 1000;
+
     mNumFramesAvailable--;
 
-    // If this is the first time we're seeing this buffer, add it to our
-    // slot table.
-    if (item.mGraphicBuffer != NULL) {
-        ALOGV("fillCodecBuffer_l: setting mBufferSlot %d", item.mSlot);
-        mBufferSlot[item.mSlot] = item.mGraphicBuffer;
-        mBufferUseCount[item.mSlot] = 0;
+    // Process ActionItem in the Queue if there is any. If a buffer's timestamp
+    // is smaller than the first action's timestamp, no action need to be performed.
+    // If buffer's timestamp is larger or equal than the last action's timestamp,
+    // only the last action needs to be performed as all the acitions before the
+    // the action are overridden by the last action. For the other cases, traverse
+    // the Queue to find the newest action that with timestamp smaller or equal to
+    // the buffer's timestamp. For example, an action queue like
+    // [pause, 1s], [resume 2us], [pause 3us], [resume 4us], [pause 5us].... Upon
+    // receiving a buffer with timestamp 3.5us, only the action [pause, 3us] needs
+    // to be handled and [pause, 1us], [resume 2us] will be discarded.
+    bool dropped = false;
+    bool done = false;
+    if (!mActionQueue.empty()) {
+        // First scan to check if bufferTimestamp is smaller than first action's timestamp.
+        ActionItem nextAction = *(mActionQueue.begin());
+        if (itemTimeUs < nextAction.mActionTimeUs) {
+            ALOGV("No action. buffer timestamp %lld us < action timestamp: %lld us",
+                (long long)itemTimeUs, (long long)nextAction.mActionTimeUs);
+            // All the actions are ahead. No action need to perform now.
+            // Release the buffer if is in suspended state, or process the buffer
+            // if not in suspended state.
+            dropped = mSuspended;
+            done = true;
+        }
+
+        if (!done) {
+            List<ActionItem>::iterator it = mActionQueue.begin();
+            while(it != mActionQueue.end()) {
+                nextAction = *it;
+                mActionQueue.erase(it);
+                if (nextAction.mActionTimeUs > itemTimeUs) {
+                    break;
+                }
+                ++it;
+            }
+
+            CHECK(itemTimeUs >= nextAction.mActionTimeUs);
+            switch (nextAction.mAction) {
+                case ActionItem::PAUSE:
+                {
+                    mSuspended = true;
+                    dropped = true;
+                    ALOGV("RUNNING/PAUSE -> PAUSE at buffer %lld us  PAUSE Time: %lld us",
+                            (long long)itemTimeUs, (long long)nextAction.mActionTimeUs);
+                    break;
+                }
+                case ActionItem::RESUME:
+                {
+                    mSuspended = false;
+                    ALOGV("PAUSE/RUNNING -> RUNNING at buffer %lld us  RESUME Time: %lld us",
+                            (long long)itemTimeUs, (long long)nextAction.mActionTimeUs);
+                    break;
+                }
+                case ActionItem::STOP:
+                {
+                    ALOGV("RUNNING/PAUSE -> STOP at buffer %lld us  STOP Time: %lld us",
+                            (long long)itemTimeUs, (long long)nextAction.mActionTimeUs);
+                    dropped = true;
+                    // Clear the whole ActionQueue as recording is done
+                    mActionQueue.clear();
+                    submitEndOfInputStream_l();
+                    break;
+                }
+                default:
+                    ALOGE("Unknown action type");
+                    return false;
+            }
+        }
+    }
+
+    if (dropped) {
+        releaseBuffer(item.mSlot, item.mFrameNumber, item.mFence);
+        return true;
     }
 
     if (item.mDataSpace != mLastDataSpace) {
@@ -625,12 +452,10 @@
                 item.mDataSpace, (android_pixel_format)mBufferSlot[item.mSlot]->getPixelFormat());
     }
 
-
     err = UNKNOWN_ERROR;
 
     // only submit sample if start time is unspecified, or sample
     // is queued after the specified start time
-    bool dropped = false;
     if (mSkipFramesBeforeNs < 0ll || item.mTimestamp >= mSkipFramesBeforeNs) {
         // if start time is set, offset time stamp by start time
         if (mSkipFramesBeforeNs > 0) {
@@ -650,10 +475,18 @@
 
     if (err != OK) {
         ALOGV("submitBuffer_l failed, releasing bq slot %d", item.mSlot);
-        releaseBuffer(item.mSlot, item.mFrameNumber, item.mGraphicBuffer, item.mFence);
+        releaseBuffer(item.mSlot, item.mFrameNumber, item.mFence);
     } else {
-        ALOGV("buffer submitted (bq %d, cbi %d)", item.mSlot, cbi);
-        setLatestBuffer_l(item, dropped);
+        // Don't set the last buffer id if we're not repeating,
+        // we'll be holding on to the last buffer for nothing.
+        if (mRepeatAfterUs > 0ll) {
+            setLatestBuffer_l(item);
+        }
+        if (!dropped) {
+            ++mBufferUseCount[item.mSlot];
+        }
+        ALOGV("buffer submitted: slot=%d, cbi=%d, useCount=%d, acquired=%d",
+                item.mSlot, cbi, mBufferUseCount[item.mSlot], mNumBufferAcquired);
     }
 
     return true;
@@ -722,24 +555,16 @@
     return true;
 }
 
-void GraphicBufferSource::setLatestBuffer_l(
-        const BufferItem &item, bool dropped) {
-    if (mLatestBufferId >= 0) {
-        if (mBufferUseCount[mLatestBufferId] == 0) {
-            releaseBuffer(mLatestBufferId, mLatestBufferFrameNum,
-                    mBufferSlot[mLatestBufferId], mLatestBufferFence);
-            // mLatestBufferFence will be set to new fence just below
-        }
+void GraphicBufferSource::setLatestBuffer_l(const BufferItem &item) {
+    if (mLatestBufferId >= 0 && mBufferUseCount[mLatestBufferId] == 0) {
+        releaseBuffer(mLatestBufferId, mLatestBufferFrameNum, mLatestBufferFence);
+        // mLatestBufferFence will be set to new fence just below
     }
 
     mLatestBufferId = item.mSlot;
     mLatestBufferFrameNum = item.mFrameNumber;
     mRepeatLastFrameTimestamp = item.mTimestamp + mRepeatAfterUs * 1000;
 
-    if (!dropped) {
-        ++mBufferUseCount[item.mSlot];
-    }
-
     ALOGV("setLatestBuffer_l: slot=%d, useCount=%d",
             item.mSlot, mBufferUseCount[item.mSlot]);
 
@@ -754,34 +579,8 @@
     }
 }
 
-status_t GraphicBufferSource::signalEndOfInputStream() {
-    Mutex::Autolock autoLock(mMutex);
-    ALOGV("signalEndOfInputStream: exec=%d avail=%zu eos=%d",
-            mExecuting, mNumFramesAvailable, mEndOfStream);
-
-    if (mEndOfStream) {
-        ALOGE("EOS was already signaled");
-        return INVALID_OPERATION;
-    }
-
-    // Set the end-of-stream flag.  If no frames are pending from the
-    // BufferQueue, and a codec buffer is available, and we're executing,
-    // we initiate the EOS from here.  Otherwise, we'll let
-    // codecBufferEmptied() (or omxExecuting) do it.
-    //
-    // Note: if there are no pending frames and all codec buffers are
-    // available, we *must* submit the EOS from here or we'll just
-    // stall since no future events are expected.
-    mEndOfStream = true;
-
-    if (mExecuting && mNumFramesAvailable == 0) {
-        submitEndOfInputStream_l();
-    }
-
-    return OK;
-}
-
-int64_t GraphicBufferSource::getTimestamp(const BufferItem &item) {
+bool GraphicBufferSource::getTimestamp(
+        const BufferItem &item, int64_t *codecTimeUs) {
     int64_t timeUs = item.mTimestamp / 1000;
     timeUs += mInputBufferTimeOffsetUs;
 
@@ -801,7 +600,7 @@
             if (nFrames <= 0) {
                 // skip this frame as it's too close to previous capture
                 ALOGV("skipping frame, timeUs %lld", static_cast<long long>(timeUs));
-                return -1;
+                return false;
             }
             mPrevCaptureUs = mPrevCaptureUs + nFrames * mTimePerCaptureUs;
             mPrevFrameUs += mTimePerFrameUs * nFrames;
@@ -812,49 +611,29 @@
                 static_cast<long long>(mPrevCaptureUs),
                 static_cast<long long>(mPrevFrameUs));
 
-        return mPrevFrameUs;
+        *codecTimeUs = mPrevFrameUs;
+        return true;
     } else {
         int64_t originalTimeUs = timeUs;
         if (originalTimeUs <= mPrevOriginalTimeUs) {
                 // Drop the frame if it's going backward in time. Bad timestamp
                 // could disrupt encoder's rate control completely.
             ALOGW("Dropping frame that's going backward in time");
-            return -1;
-        }
-
-        if (mMaxTimestampGapUs > 0ll) {
-            //TODO: Fix the case when mMaxTimestampGapUs and mTimePerCaptureUs are both set.
-
-            /* Cap timestamp gap between adjacent frames to specified max
-             *
-             * In the scenario of cast mirroring, encoding could be suspended for
-             * prolonged periods. Limiting the pts gap to workaround the problem
-             * where encoder's rate control logic produces huge frames after a
-             * long period of suspension.
-             */
-            if (mPrevOriginalTimeUs >= 0ll) {
-                int64_t timestampGapUs = originalTimeUs - mPrevOriginalTimeUs;
-                timeUs = (timestampGapUs < mMaxTimestampGapUs ?
-                    timestampGapUs : mMaxTimestampGapUs) + mPrevModifiedTimeUs;
-            }
-            mOriginalTimeUs.add(timeUs, originalTimeUs);
-            ALOGV("IN  timestamp: %lld -> %lld",
-                static_cast<long long>(originalTimeUs),
-                static_cast<long long>(timeUs));
+            return false;
         }
 
         mPrevOriginalTimeUs = originalTimeUs;
-        mPrevModifiedTimeUs = timeUs;
     }
 
-    return timeUs;
+    *codecTimeUs = timeUs;
+    return true;
 }
 
 status_t GraphicBufferSource::submitBuffer_l(const BufferItem &item, int cbi) {
     ALOGV("submitBuffer_l: slot=%d, cbi=%d", item.mSlot, cbi);
 
-    int64_t timeUs = getTimestamp(item);
-    if (timeUs < 0ll) {
+    int64_t codecTimeUs;
+    if (!getTimestamp(item, &codecTimeUs)) {
         return UNKNOWN_ERROR;
     }
 
@@ -863,19 +642,21 @@
     codecBuffer.mSlot = item.mSlot;
     codecBuffer.mFrameNumber = item.mFrameNumber;
 
-    OMX_BUFFERHEADERTYPE* header = codecBuffer.mHeader;
-    sp<GraphicBuffer> buffer = codecBuffer.mGraphicBuffer;
-    status_t err = mNodeInstance->emptyGraphicBuffer(
-            header, buffer, OMX_BUFFERFLAG_ENDOFFRAME, timeUs,
-            item.mFence->isValid() ? item.mFence->dup() : -1);
+    IOMX::buffer_id bufferID = codecBuffer.mBufferID;
+    const sp<GraphicBuffer> &buffer = codecBuffer.mGraphicBuffer;
+    int fenceID = item.mFence->isValid() ? item.mFence->dup() : -1;
+
+    status_t err = mOMXNode->emptyBuffer(
+            bufferID, OMX_BUFFERFLAG_ENDOFFRAME, buffer, codecTimeUs, fenceID);
+
     if (err != OK) {
-        ALOGW("WARNING: emptyNativeWindowBuffer failed: 0x%x", err);
+        ALOGW("WARNING: emptyGraphicBuffer failed: 0x%x", err);
         codecBuffer.mGraphicBuffer = NULL;
         return err;
     }
 
-    ALOGV("emptyNativeWindowBuffer succeeded, h=%p p=%p buf=%p bufhandle=%p",
-            header, header->pBuffer, buffer->getNativeBuffer(), buffer->handle);
+    ALOGV("emptyGraphicBuffer succeeded, bufferID=%u buf=%p bufhandle=%p",
+            bufferID, buffer->getNativeBuffer(), buffer->handle);
     return OK;
 }
 
@@ -896,16 +677,15 @@
     // to stick a placeholder into codecBuffer.mGraphicBuffer to mark it as
     // in-use.
     CodecBuffer& codecBuffer(mCodecBuffers.editItemAt(cbi));
+    IOMX::buffer_id bufferID = codecBuffer.mBufferID;
 
-    OMX_BUFFERHEADERTYPE* header = codecBuffer.mHeader;
-    status_t err = mNodeInstance->emptyGraphicBuffer(
-            header, NULL /* buffer */, OMX_BUFFERFLAG_ENDOFFRAME | OMX_BUFFERFLAG_EOS,
-            0 /* timestamp */, -1 /* fenceFd */);
+    status_t err = mOMXNode->emptyBuffer(bufferID,
+            OMX_BUFFERFLAG_ENDOFFRAME | OMX_BUFFERFLAG_EOS);
     if (err != OK) {
         ALOGW("emptyDirectBuffer EOS failed: 0x%x", err);
     } else {
-        ALOGV("submitEndOfInputStream_l: buffer submitted, header=%p cbi=%d",
-                header, cbi);
+        ALOGV("submitEndOfInputStream_l: buffer submitted, bufferID=%u cbi=%d",
+                bufferID, cbi);
         mEndOfStreamSent = true;
     }
 }
@@ -921,44 +701,48 @@
     return -1;
 }
 
-int GraphicBufferSource::findMatchingCodecBuffer_l(
-        const OMX_BUFFERHEADERTYPE* header) {
+int GraphicBufferSource::findMatchingCodecBuffer_l(IOMX::buffer_id bufferID) {
     for (int i = (int)mCodecBuffers.size() - 1; i>= 0; --i) {
-        if (mCodecBuffers[i].mHeader == header) {
+        if (mCodecBuffers[i].mBufferID == bufferID) {
             return i;
         }
     }
     return -1;
 }
 
+status_t GraphicBufferSource::acquireBuffer(BufferItem *bi) {
+    status_t err = mConsumer->acquireBuffer(bi, 0);
+    if (err == BufferQueue::NO_BUFFER_AVAILABLE) {
+        // shouldn't happen
+        ALOGW("acquireBuffer: frame was not available");
+        return err;
+    } else if (err != OK) {
+        ALOGW("acquireBuffer: failed with err=%d", err);
+        return err;
+    }
+    // If this is the first time we're seeing this buffer, add it to our
+    // slot table.
+    if (bi->mGraphicBuffer != NULL) {
+        ALOGV("acquireBuffer: setting mBufferSlot %d", bi->mSlot);
+        mBufferSlot[bi->mSlot] = bi->mGraphicBuffer;
+        mBufferUseCount[bi->mSlot] = 0;
+    }
+    mNumBufferAcquired++;
+    return OK;
+}
+
 /*
- * Releases an acquired buffer back to the consumer for either persistent
- * or non-persistent surfaces.
+ * Releases an acquired buffer back to the consumer.
  *
- * id: buffer slot to release (in persistent case the id might be changed)
+ * id: buffer slot to release
  * frameNum: frame number of the frame being released
- * buffer: GraphicBuffer pointer to release (note this must not be & as we
- *         will clear the original mBufferSlot in persistent case)
- *         Use NOLINT to supress warning on the copy of 'buffer'.
  * fence: fence of the frame being released
  */
 void GraphicBufferSource::releaseBuffer(
-        int &id, uint64_t frameNum,
-        const sp<GraphicBuffer> buffer, const sp<Fence> &fence) {  // NOLINT
+        int id, uint64_t frameNum, const sp<Fence> &fence) {
     ALOGV("releaseBuffer: slot=%d", id);
-    if (mIsPersistent) {
-        mConsumer->detachBuffer(id);
-        mBufferSlot[id] = NULL;
-
-        if (mConsumer->attachBuffer(&id, buffer) == OK) {
-            mConsumer->releaseBuffer(
-                    id, 0, EGL_NO_DISPLAY, EGL_NO_SYNC_KHR, fence);
-        }
-    } else {
-        mConsumer->releaseBuffer(
-                id, frameNum, EGL_NO_DISPLAY, EGL_NO_SYNC_KHR, fence);
-    }
-    id = -1; // invalidate id
+    mConsumer->releaseBuffer(
+            id, frameNum, EGL_NO_DISPLAY, EGL_NO_SYNC_KHR, fence);
     mNumBufferAcquired--;
 }
 
@@ -969,31 +753,22 @@
     ALOGV("onFrameAvailable exec=%d avail=%zu",
             mExecuting, mNumFramesAvailable);
 
-    if (mEndOfStream || mSuspended) {
-        if (mEndOfStream) {
+    if (mOMXNode == NULL || mEndOfStreamSent || (mSuspended && mActionQueue.empty())) {
+        if (mEndOfStreamSent) {
             // This should only be possible if a new buffer was queued after
             // EOS was signaled, i.e. the app is misbehaving.
 
-            ALOGW("onFrameAvailable: EOS is set, ignoring frame");
+            ALOGW("onFrameAvailable: EOS is sent, ignoring frame");
         } else {
             ALOGV("onFrameAvailable: suspended, ignoring frame");
         }
 
         BufferItem item;
-        status_t err = mConsumer->acquireBuffer(&item, 0);
+        status_t err = acquireBuffer(&item);
         if (err == OK) {
-            mNumBufferAcquired++;
-
-            // If this is the first time we're seeing this buffer, add it to our
-            // slot table.
-            if (item.mGraphicBuffer != NULL) {
-                ALOGV("onFrameAvailable: setting mBufferSlot %d", item.mSlot);
-                mBufferSlot[item.mSlot] = item.mGraphicBuffer;
-                mBufferUseCount[item.mSlot] = 0;
-            }
-
-            releaseBuffer(item.mSlot, item.mFrameNumber,
-                    item.mGraphicBuffer, item.mFence);
+            releaseBuffer(item.mSlot, item.mFrameNumber, item.mFence);
+        } else {
+            ALOGE("onFrameAvailable: acquireBuffer returned err=%d", err);
         }
         return;
     }
@@ -1022,6 +797,18 @@
 
     for (int i = 0; i < BufferQueue::NUM_BUFFER_SLOTS; i++) {
         if ((slotMask & 0x01) != 0) {
+            // Last buffer (if set) is always acquired even if its use count
+            // is 0, because we could have skipped that frame but kept it for
+            // repeating. Otherwise a buffer is only acquired if use count>0.
+            if (mBufferSlot[i] != NULL &&
+                    (mBufferUseCount[i] > 0 || mLatestBufferId == i)) {
+                ALOGV("releasing acquired buffer: slot=%d, useCount=%d, latest=%d",
+                        i, mBufferUseCount[i], mLatestBufferId);
+                mNumBufferAcquired--;
+            }
+            if (mLatestBufferId == i) {
+                mLatestBufferId = -1;
+            }
             mBufferSlot[i] = NULL;
             mBufferUseCount[i] = 0;
         }
@@ -1034,15 +821,143 @@
     ALOG_ASSERT(false, "GraphicBufferSource can't consume sideband streams");
 }
 
-void GraphicBufferSource::setDefaultDataSpace(android_dataspace dataSpace) {
-    // no need for mutex as we are not yet running
-    ALOGD("setting dataspace: %#x", dataSpace);
-    mConsumer->setDefaultBufferDataSpace(dataSpace);
-    mLastDataSpace = dataSpace;
+status_t GraphicBufferSource::configure(
+        const sp<IOmxNodeWrapper>& omxNode,
+        int32_t dataSpace,
+        int32_t bufferCount,
+        uint32_t frameWidth,
+        uint32_t frameHeight,
+        uint32_t consumerUsage) {
+    if (omxNode == NULL) {
+        return BAD_VALUE;
+    }
+
+
+    // Call setMaxAcquiredBufferCount without lock.
+    // setMaxAcquiredBufferCount could call back to onBuffersReleased
+    // if the buffer count change results in releasing of existing buffers,
+    // which would lead to deadlock.
+    status_t err = mConsumer->setMaxAcquiredBufferCount(bufferCount);
+    if (err != NO_ERROR) {
+        ALOGE("Unable to set BQ max acquired buffer count to %u: %d",
+                bufferCount, err);
+        return err;
+    }
+
+    {
+        Mutex::Autolock autoLock(mMutex);
+        mOMXNode = omxNode;
+
+        err = mConsumer->setDefaultBufferSize(frameWidth, frameHeight);
+        if (err != NO_ERROR) {
+            ALOGE("Unable to set BQ default buffer size to %ux%u: %d",
+                    frameWidth, frameHeight, err);
+            return err;
+        }
+
+        consumerUsage |= GRALLOC_USAGE_HW_VIDEO_ENCODER;
+        mConsumer->setConsumerUsageBits(consumerUsage);
+
+        // Sets the default buffer data space
+        ALOGD("setting dataspace: %#x, acquired=%d", dataSpace, mNumBufferAcquired);
+        mConsumer->setDefaultBufferDataSpace((android_dataspace)dataSpace);
+        mLastDataSpace = (android_dataspace)dataSpace;
+
+        mExecuting = false;
+        mSuspended = false;
+        mEndOfStream = false;
+        mEndOfStreamSent = false;
+        mPrevOriginalTimeUs = -1ll;
+        mSkipFramesBeforeNs = -1ll;
+        mRepeatAfterUs = -1ll;
+        mRepeatLastFrameGeneration = 0;
+        mRepeatLastFrameTimestamp = -1ll;
+        mRepeatLastFrameCount = 0;
+        mLatestBufferId = -1;
+        mLatestBufferFrameNum = 0;
+        mLatestBufferFence = Fence::NO_FENCE;
+        mRepeatBufferDeferred = false;
+        mTimePerCaptureUs = -1ll;
+        mTimePerFrameUs = -1ll;
+        mPrevCaptureUs = -1ll;
+        mPrevFrameUs = -1ll;
+        mInputBufferTimeOffsetUs = 0;
+        mStopTimeUs = -1;
+        mActionQueue.clear();
+    }
+
+    return OK;
 }
 
-status_t GraphicBufferSource::setRepeatPreviousFrameDelayUs(
-        int64_t repeatAfterUs) {
+status_t GraphicBufferSource::setSuspend(bool suspend, int64_t suspendStartTimeUs) {
+    ALOGV("setSuspend=%d at time %lld us", suspend, (long long)suspendStartTimeUs);
+
+    Mutex::Autolock autoLock(mMutex);
+
+    if (mStopTimeUs != -1) {
+        ALOGE("setSuspend failed as STOP action is pending");
+        return INVALID_OPERATION;
+    }
+
+    // Push the action to the queue.
+    if (suspendStartTimeUs != -1) {
+        // suspendStartTimeUs must be smaller or equal to current systemTime.
+        int64_t currentSystemTimeUs = systemTime() / 1000;
+        if (suspendStartTimeUs > currentSystemTimeUs) {
+            ALOGE("setSuspend failed. %lld is larger than current system time %lld us",
+                    (long long)suspendStartTimeUs, (long long)currentSystemTimeUs);
+            return INVALID_OPERATION;
+        }
+        if (mLastActionTimeUs != -1 && suspendStartTimeUs < mLastActionTimeUs) {
+            ALOGE("setSuspend failed. %lld is smaller than last action time %lld us",
+                    (long long)suspendStartTimeUs, (long long)mLastActionTimeUs);
+            return INVALID_OPERATION;
+        }
+        mLastActionTimeUs = suspendStartTimeUs;
+        ActionItem action;
+        action.mAction = suspend ? ActionItem::PAUSE : ActionItem::RESUME;
+        action.mActionTimeUs = suspendStartTimeUs;
+        ALOGV("Push %s action into actionQueue", suspend ? "PAUSE" : "RESUME");
+        mActionQueue.push_back(action);
+    } else {
+        if (suspend) {
+            mSuspended = true;
+
+            while (mNumFramesAvailable > 0) {
+                BufferItem item;
+                status_t err = acquireBuffer(&item);
+
+                if (err != OK) {
+                    ALOGE("setSuspend: acquireBuffer returned err=%d", err);
+                    break;
+                }
+
+                --mNumFramesAvailable;
+
+                releaseBuffer(item.mSlot, item.mFrameNumber, item.mFence);
+            }
+            return OK;
+        } else {
+
+            mSuspended = false;
+
+            if (mExecuting && mNumFramesAvailable == 0 && mRepeatBufferDeferred) {
+                if (repeatLatestBuffer_l()) {
+                    ALOGV("suspend/deferred repeatLatestBuffer_l SUCCESS");
+
+                    mRepeatBufferDeferred = false;
+                } else {
+                    ALOGV("suspend/deferred repeatLatestBuffer_l FAILURE");
+                }
+            }
+        }
+    }
+    return OK;
+}
+
+status_t GraphicBufferSource::setRepeatPreviousFrameDelayUs(int64_t repeatAfterUs) {
+    ALOGV("setRepeatPreviousFrameDelayUs: delayUs=%lld", (long long)repeatAfterUs);
+
     Mutex::Autolock autoLock(mMutex);
 
     if (mExecuting || repeatAfterUs <= 0ll) {
@@ -1050,23 +965,10 @@
     }
 
     mRepeatAfterUs = repeatAfterUs;
-
     return OK;
 }
 
-status_t GraphicBufferSource::setMaxTimestampGapUs(int64_t maxGapUs) {
-    Mutex::Autolock autoLock(mMutex);
-
-    if (mExecuting || maxGapUs <= 0ll) {
-        return INVALID_OPERATION;
-    }
-
-    mMaxTimestampGapUs = maxGapUs;
-
-    return OK;
-}
-
-status_t GraphicBufferSource::setInputBufferTimeOffset(int64_t timeOffsetUs) {
+status_t GraphicBufferSource::setTimeOffsetUs(int64_t timeOffsetUs) {
     Mutex::Autolock autoLock(mMutex);
 
     // timeOffsetUs must be negative for adjustment.
@@ -1079,6 +981,8 @@
 }
 
 status_t GraphicBufferSource::setMaxFps(float maxFps) {
+    ALOGV("setMaxFps: maxFps=%lld", (long long)maxFps);
+
     Mutex::Autolock autoLock(mMutex);
 
     if (mExecuting) {
@@ -1095,34 +999,101 @@
     return OK;
 }
 
-void GraphicBufferSource::setSkipFramesBeforeUs(int64_t skipFramesBeforeUs) {
+status_t GraphicBufferSource::setStartTimeUs(int64_t skipFramesBeforeUs) {
+    ALOGV("setStartTimeUs: skipFramesBeforeUs=%lld", (long long)skipFramesBeforeUs);
+
     Mutex::Autolock autoLock(mMutex);
 
     mSkipFramesBeforeNs =
             (skipFramesBeforeUs > 0) ? (skipFramesBeforeUs * 1000) : -1ll;
-}
-
-status_t GraphicBufferSource::setTimeLapseConfig(const TimeLapseConfig &config) {
-    Mutex::Autolock autoLock(mMutex);
-
-    if (mExecuting || config.mTimePerFrameUs <= 0ll || config.mTimePerCaptureUs <= 0ll) {
-        return INVALID_OPERATION;
-    }
-
-    mTimePerFrameUs = config.mTimePerFrameUs;
-    mTimePerCaptureUs = config.mTimePerCaptureUs;
 
     return OK;
 }
 
-void GraphicBufferSource::setColorAspects(const ColorAspects &aspects) {
+status_t GraphicBufferSource::setStopTimeUs(int64_t stopTimeUs) {
+    ALOGV("setStopTimeUs: %lld us", (long long)stopTimeUs);
     Mutex::Autolock autoLock(mMutex);
-    mColorAspects = aspects;
+
+    if (mStopTimeUs != -1) {
+        // Ignore if stop time has already been set
+        return OK;
+    }
+
+    // stopTimeUs must be smaller or equal to current systemTime.
+    int64_t currentSystemTimeUs = systemTime() / 1000;
+    if (stopTimeUs > currentSystemTimeUs) {
+        ALOGE("setStopTimeUs failed. %lld is larger than current system time %lld us",
+            (long long)stopTimeUs, (long long)currentSystemTimeUs);
+        return INVALID_OPERATION;
+    }
+    if (mLastActionTimeUs != -1 && stopTimeUs < mLastActionTimeUs) {
+        ALOGE("setSuspend failed. %lld is smaller than last action time %lld us",
+            (long long)stopTimeUs, (long long)mLastActionTimeUs);
+        return INVALID_OPERATION;
+    }
+    mLastActionTimeUs = stopTimeUs;
+    ActionItem action;
+    action.mAction = ActionItem::STOP;
+    action.mActionTimeUs = stopTimeUs;
+    mActionQueue.push_back(action);
+    mStopTimeUs = stopTimeUs;
+    return OK;
+}
+
+status_t GraphicBufferSource::setTimeLapseConfig(int64_t timePerFrameUs, int64_t timePerCaptureUs) {
+    ALOGV("setTimeLapseConfig: timePerFrameUs=%lld, timePerCaptureUs=%lld",
+            (long long)timePerFrameUs, (long long)timePerCaptureUs);
+
+    Mutex::Autolock autoLock(mMutex);
+
+    if (mExecuting || timePerFrameUs <= 0ll || timePerCaptureUs <= 0ll) {
+        return INVALID_OPERATION;
+    }
+
+    mTimePerFrameUs = timePerFrameUs;
+    mTimePerCaptureUs = timePerCaptureUs;
+
+    return OK;
+}
+
+status_t GraphicBufferSource::setColorAspects(int32_t aspectsPacked) {
+    Mutex::Autolock autoLock(mMutex);
+    mColorAspectsPacked = aspectsPacked;
+    ColorAspects colorAspects = ColorUtils::unpackToColorAspects(aspectsPacked);
     ALOGD("requesting color aspects (R:%d(%s), P:%d(%s), M:%d(%s), T:%d(%s))",
-            aspects.mRange, asString(aspects.mRange),
-            aspects.mPrimaries, asString(aspects.mPrimaries),
-            aspects.mMatrixCoeffs, asString(aspects.mMatrixCoeffs),
-            aspects.mTransfer, asString(aspects.mTransfer));
+            colorAspects.mRange, asString(colorAspects.mRange),
+            colorAspects.mPrimaries, asString(colorAspects.mPrimaries),
+            colorAspects.mMatrixCoeffs, asString(colorAspects.mMatrixCoeffs),
+            colorAspects.mTransfer, asString(colorAspects.mTransfer));
+
+    return OK;
+}
+
+status_t GraphicBufferSource::signalEndOfInputStream() {
+    Mutex::Autolock autoLock(mMutex);
+    ALOGV("signalEndOfInputStream: exec=%d avail=%zu eos=%d",
+            mExecuting, mNumFramesAvailable, mEndOfStream);
+
+    if (mEndOfStream) {
+        ALOGE("EOS was already signaled");
+        return INVALID_OPERATION;
+    }
+
+    // Set the end-of-stream flag.  If no frames are pending from the
+    // BufferQueue, and a codec buffer is available, and we're executing,
+    // and there is no stop timestamp, we initiate the EOS from here.
+    // Otherwise, we'll let codecBufferEmptied() (or omxExecuting) do it.
+    //
+    // Note: if there are no pending frames and all codec buffers are
+    // available, we *must* submit the EOS from here or we'll just
+    // stall since no future events are expected.
+    mEndOfStream = true;
+
+    if (mStopTimeUs == -1 && mExecuting && mNumFramesAvailable == 0) {
+        submitEndOfInputStream_l();
+    }
+
+    return OK;
 }
 
 void GraphicBufferSource::onMessageReceived(const sp<AMessage> &msg) {
diff --git a/media/libstagefright/omx/GraphicBufferSource.h b/media/libstagefright/omx/GraphicBufferSource.h
index aa4ceb3..371c5ed 100644
--- a/media/libstagefright/omx/GraphicBufferSource.h
+++ b/media/libstagefright/omx/GraphicBufferSource.h
@@ -22,15 +22,22 @@
 #include <gui/BufferQueue.h>
 #include <utils/RefBase.h>
 
-#include <OMX_Core.h>
 #include <VideoAPI.h>
-#include "../include/OMXNodeInstance.h"
+#include <media/IOMX.h>
+#include <media/OMXFenceParcelable.h>
 #include <media/stagefright/foundation/ABase.h>
 #include <media/stagefright/foundation/AHandlerReflector.h>
 #include <media/stagefright/foundation/ALooper.h>
 
+#include <android/BnGraphicBufferSource.h>
+#include <android/BnOMXBufferSource.h>
+
+#include "IOmxNodeWrapper.h"
+
 namespace android {
 
+using ::android::binder::Status;
+
 struct FrameDropper;
 
 /*
@@ -51,14 +58,7 @@
  */
 class GraphicBufferSource : public BufferQueue::ConsumerListener {
 public:
-    GraphicBufferSource(
-            OMXNodeInstance* nodeInstance,
-            uint32_t bufferWidth,
-            uint32_t bufferHeight,
-            uint32_t bufferCount,
-            uint32_t consumerUsage,
-            const sp<IGraphicBufferConsumer> &consumer = NULL
-    );
+    GraphicBufferSource();
 
     virtual ~GraphicBufferSource();
 
@@ -74,44 +74,52 @@
         return mProducer;
     }
 
-    // Sets the default buffer data space
-    void setDefaultDataSpace(android_dataspace dataSpace);
-
     // This is called when OMX transitions to OMX_StateExecuting, which means
     // we can start handing it buffers.  If we already have buffers of data
     // sitting in the BufferQueue, this will send them to the codec.
-    void omxExecuting();
+    Status onOmxExecuting();
 
     // This is called when OMX transitions to OMX_StateIdle, indicating that
     // the codec is meant to return all buffers back to the client for them
     // to be freed. Do NOT submit any more buffers to the component.
-    void omxIdle();
+    Status onOmxIdle();
 
     // This is called when OMX transitions to OMX_StateLoaded, indicating that
     // we are shutting down.
-    void omxLoaded();
+    Status onOmxLoaded();
 
     // A "codec buffer", i.e. a buffer that can be used to pass data into
     // the encoder, has been allocated.  (This call does not call back into
     // OMXNodeInstance.)
-    void addCodecBuffer(OMX_BUFFERHEADERTYPE* header);
+    Status onInputBufferAdded(int32_t bufferID);
 
     // Called from OnEmptyBufferDone.  If we have a BQ buffer available,
     // fill it with a new frame of data; otherwise, just mark it as available.
-    void codecBufferEmptied(OMX_BUFFERHEADERTYPE* header, int fenceFd);
+    Status onInputBufferEmptied(
+            int32_t bufferID, int fenceFd);
 
-    // Called when omx_message::FILL_BUFFER_DONE is received. (Currently the
-    // buffer source will fix timestamp in the header if needed.)
-    void codecBufferFilled(OMX_BUFFERHEADERTYPE* header);
+    // Configure the buffer source to be used with an OMX node with the default
+    // data space.
+    status_t configure(
+        const sp<IOmxNodeWrapper> &omxNode,
+        int32_t dataSpace,
+        int32_t bufferCount,
+        uint32_t frameWidth,
+        uint32_t frameHeight,
+        uint32_t consumerUsage);
 
-    // This is called after the last input frame has been submitted.  We
-    // need to submit an empty buffer with the EOS flag set.  If we don't
-    // have a codec buffer ready, we just set the mEndOfStream flag.
+    // This is called after the last input frame has been submitted or buffer
+    // timestamp is greater or equal than stopTimeUs. We need to submit an empty
+    // buffer with the EOS flag set.  If we don't have a codec buffer ready,
+    // we just set the mEndOfStream flag.
     status_t signalEndOfInputStream();
 
     // If suspend is true, all incoming buffers (including those currently
-    // in the BufferQueue) will be discarded until the suspension is lifted.
-    void suspend(bool suspend);
+    // in the BufferQueue) with timestamp larger than timeUs will be discarded
+    // until the suspension is lifted. If suspend is false, all incoming buffers
+    // including those currently in the BufferQueue) with timestamp larger than
+    // timeUs will be processed. timeUs uses SYSTEM_TIME_MONOTONIC time base.
+    status_t setSuspend(bool suspend, int64_t timeUs);
 
     // Specifies the interval after which we requeue the buffer previously
     // queued to the encoder. This is useful in the case of surface flinger
@@ -122,38 +130,28 @@
     // state and once this behaviour is specified it cannot be reset.
     status_t setRepeatPreviousFrameDelayUs(int64_t repeatAfterUs);
 
-    // When set, the timestamp fed to the encoder will be modified such that
-    // the gap between two adjacent frames is capped at maxGapUs. Timestamp
-    // will be restored to the original when the encoded frame is returned to
-    // the client.
-    // This is to solve a problem in certain real-time streaming case, where
-    // encoder's rate control logic produces huge frames after a long period
-    // of suspension on input.
-    status_t setMaxTimestampGapUs(int64_t maxGapUs);
-
     // Sets the input buffer timestamp offset.
     // When set, the sample's timestamp will be adjusted with the timeOffsetUs.
-    status_t setInputBufferTimeOffset(int64_t timeOffsetUs);
+    status_t setTimeOffsetUs(int64_t timeOffsetUs);
 
     // When set, the max frame rate fed to the encoder will be capped at maxFps.
     status_t setMaxFps(float maxFps);
 
-    struct TimeLapseConfig {
-        int64_t mTimePerFrameUs;   // the time (us) between two frames for playback
-        int64_t mTimePerCaptureUs; // the time (us) between two frames for capture
-    };
-
     // Sets the time lapse (or slow motion) parameters.
     // When set, the sample's timestamp will be modified to playback framerate,
     // and capture timestamp will be modified to capture rate.
-    status_t setTimeLapseConfig(const TimeLapseConfig &config);
+    status_t setTimeLapseConfig(int64_t timePerFrameUs, int64_t timePerCaptureUs);
 
     // Sets the start time us (in system time), samples before which should
     // be dropped and not submitted to encoder
-    void setSkipFramesBeforeUs(int64_t startTimeUs);
+    status_t setStartTimeUs(int64_t startTimeUs);
+
+    // Sets the stop time us (in system time), samples after which should be dropped
+    // and not submitted to encoder. timeUs uses SYSTEM_TIME_MONOTONIC time base.
+    status_t setStopTimeUs(int64_t stopTimeUs);
 
     // Sets the desired color aspects, e.g. to be used when producer does not specify a dataspace.
-    void setColorAspects(const ColorAspects &aspects);
+    status_t setColorAspects(int32_t aspectsPacked);
 
 protected:
     // BufferQueue::ConsumerListener interface, called when a new frame of
@@ -162,48 +160,24 @@
     // into the codec buffer, and call Empty[This]Buffer.  If we're not yet
     // executing or there's no codec buffer available, we just increment
     // mNumFramesAvailable and return.
-    virtual void onFrameAvailable(const BufferItem& item);
+    void onFrameAvailable(const BufferItem& item) override;
 
     // BufferQueue::ConsumerListener interface, called when the client has
     // released one or more GraphicBuffers.  We clear out the appropriate
     // set of mBufferSlot entries.
-    virtual void onBuffersReleased();
+    void onBuffersReleased() override;
 
     // BufferQueue::ConsumerListener interface, called when the client has
     // changed the sideband stream. GraphicBufferSource doesn't handle sideband
     // streams so this is a no-op (and should never be called).
-    virtual void onSidebandStreamChanged();
+    void onSidebandStreamChanged() override;
 
 private:
-    // PersistentProxyListener is similar to BufferQueue::ProxyConsumerListener
-    // except that it returns (acquire/detach/re-attache/release) buffers
-    // in onFrameAvailable() if the actual consumer object is no longer valid.
-    //
-    // This class is used in persistent input surface case to prevent buffer
-    // loss when onFrameAvailable() is received while we don't have a valid
-    // consumer around.
-    class PersistentProxyListener : public BnConsumerListener {
-        public:
-            PersistentProxyListener(
-                    const wp<IGraphicBufferConsumer> &consumer,
-                    const wp<ConsumerListener>& consumerListener);
-            virtual ~PersistentProxyListener();
-            virtual void onFrameAvailable(const BufferItem& item) override;
-            virtual void onFrameReplaced(const BufferItem& item) override;
-            virtual void onBuffersReleased() override;
-            virtual void onSidebandStreamChanged() override;
-         private:
-            // mConsumerListener is a weak reference to the IConsumerListener.
-            wp<ConsumerListener> mConsumerListener;
-            // mConsumer is a weak reference to the IGraphicBufferConsumer, use
-            // a weak ref to avoid circular ref between mConsumer and this class
-            wp<IGraphicBufferConsumer> mConsumer;
-    };
 
     // Keep track of codec input buffers.  They may either be available
     // (mGraphicBuffer == NULL) or in use by the codec.
     struct CodecBuffer {
-        OMX_BUFFERHEADERTYPE* mHeader;
+        IOMX::buffer_id mBufferID;
 
         // buffer producer's frame-number for buffer
         uint64_t mFrameNumber;
@@ -224,7 +198,7 @@
     }
 
     // Finds the mCodecBuffers entry that matches.  Returns -1 if not found.
-    int findMatchingCodecBuffer_l(const OMX_BUFFERHEADERTYPE* header);
+    int findMatchingCodecBuffer_l(IOMX::buffer_id bufferID);
 
     // Fills a codec buffer with a frame from the BufferQueue.  This must
     // only be called when we know that a frame of data is ready (i.e. we're
@@ -243,14 +217,15 @@
     // doing anything if we don't have a codec buffer available.
     void submitEndOfInputStream_l();
 
-    // Release buffer to the consumer
-    void releaseBuffer(
-            int &id, uint64_t frameNum,
-            const sp<GraphicBuffer> buffer, const sp<Fence> &fence);
+    // Acquire buffer from the consumer
+    status_t acquireBuffer(BufferItem *bi);
 
-    void setLatestBuffer_l(const BufferItem &item, bool dropped);
+    // Release buffer to the consumer
+    void releaseBuffer(int id, uint64_t frameNum, const sp<Fence> &fence);
+
+    void setLatestBuffer_l(const BufferItem &item);
     bool repeatLatestBuffer_l();
-    int64_t getTimestamp(const BufferItem &item);
+    bool getTimestamp(const BufferItem &item, int64_t *codecTimeUs);
 
     // called when the data space of the input buffer changes
     void onDataSpaceChanged_l(android_dataspace dataSpace, android_pixel_format pixelFormat);
@@ -261,21 +236,23 @@
     // Used to report constructor failure.
     status_t mInitCheck;
 
-    // Pointer back to the object that contains us.  We send buffers here.
-    OMXNodeInstance* mNodeInstance;
+    // Pointer back to the Omx node that created us.  We send buffers here.
+    sp<IOmxNodeWrapper> mOMXNode;
 
     // Set by omxExecuting() / omxIdling().
     bool mExecuting;
 
     bool mSuspended;
 
+    // The time to stop sending buffers.
+    int64_t mStopTimeUs;
+
     // Last dataspace seen
     android_dataspace mLastDataSpace;
 
     // Our BufferQueue interfaces. mProducer is passed to the producer through
     // getIGraphicBufferProducer, and mConsumer is used internally to retrieve
     // the buffers queued by the producer.
-    bool mIsPersistent;
     sp<IGraphicBufferProducer> mProducer;
     sp<IGraphicBufferConsumer> mConsumer;
 
@@ -300,6 +277,25 @@
     // Tracks codec buffers.
     Vector<CodecBuffer> mCodecBuffers;
 
+    struct ActionItem {
+        typedef enum {
+            PAUSE,
+            RESUME,
+            STOP
+        } ActionType;
+        ActionType mAction;
+        int64_t mActionTimeUs;
+    };
+
+    // Maintain last action timestamp to ensure all the action timestamps are
+    // monotonically increasing.
+    int64_t mLastActionTimeUs;
+
+    // An action queue that queue up all the actions sent to GraphicBufferSource.
+    // STOP action should only show up at the end of the list as all the actions
+    // after a STOP action will be discarded. mActionQueue is protected by mMutex.
+    List<ActionItem> mActionQueue;
+
     ////
     friend struct AHandlerReflector<GraphicBufferSource>;
 
@@ -310,10 +306,7 @@
         kRepeatLastFrameCount = 10,
     };
 
-    KeyedVector<int64_t, int64_t> mOriginalTimeUs;
-    int64_t mMaxTimestampGapUs;
     int64_t mPrevOriginalTimeUs;
-    int64_t mPrevModifiedTimeUs;
     int64_t mSkipFramesBeforeNs;
 
     sp<FrameDropper> mFrameDropper;
@@ -342,8 +335,7 @@
 
     int64_t mInputBufferTimeOffsetUs;
 
-    MetadataBufferType mMetadataBufferType;
-    ColorAspects mColorAspects;
+    int32_t mColorAspectsPacked;
 
     void onMessageReceived(const sp<AMessage> &msg);
 
diff --git a/media/libstagefright/omx/IOmxNodeWrapper.h b/media/libstagefright/omx/IOmxNodeWrapper.h
new file mode 100644
index 0000000..cd44e67
--- /dev/null
+++ b/media/libstagefright/omx/IOmxNodeWrapper.h
@@ -0,0 +1,39 @@
+/*
+ * Copyright 2017, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef IOMX_NODE_WRAPPER_SOURCE_H_
+#define IOMX_NODE_WRAPPER_SOURCE_H_
+
+#include <utils/RefBase.h>
+#include <utils/StrongPointer.h>
+#include <ui/GraphicBuffer.h>
+
+#include <stdint.h>
+
+namespace android {
+
+struct IOmxNodeWrapper : public RefBase {
+    virtual status_t emptyBuffer(
+            int32_t bufferId, uint32_t flags,
+            const sp<GraphicBuffer> &buffer = nullptr,
+            int64_t timestamp = 0, int fenceFd = -1) = 0;
+    virtual void dispatchDataSpaceChanged(
+            int32_t dataSpace, int32_t aspects, int32_t pixelFormat) = 0;
+};
+
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_MEDIA_OMX_V1_0_WGRAPHICBUFFERSOURCE_H
diff --git a/media/libstagefright/omx/OMX.cpp b/media/libstagefright/omx/OMX.cpp
index f7058d7..bf1418f 100644
--- a/media/libstagefright/omx/OMX.cpp
+++ b/media/libstagefright/omx/OMX.cpp
@@ -26,149 +26,19 @@
 
 #include "../include/OMXNodeInstance.h"
 
-#include <binder/IMemory.h>
 #include <media/stagefright/foundation/ADebug.h>
-#include <utils/threads.h>
+#include "BWGraphicBufferSource.h"
 
 #include "OMXMaster.h"
 #include "OMXUtils.h"
 
-#include <OMX_AsString.h>
-#include <OMX_Component.h>
-#include <OMX_VideoExt.h>
-
 namespace android {
 
 // node ids are created by concatenating the pid with a 16-bit counter
 static size_t kMaxNodeInstances = (1 << 16);
 
-////////////////////////////////////////////////////////////////////////////////
-
-// This provides the underlying Thread used by CallbackDispatcher.
-// Note that deriving CallbackDispatcher from Thread does not work.
-
-struct OMX::CallbackDispatcherThread : public Thread {
-    explicit CallbackDispatcherThread(CallbackDispatcher *dispatcher)
-        : mDispatcher(dispatcher) {
-    }
-
-private:
-    CallbackDispatcher *mDispatcher;
-
-    bool threadLoop();
-
-    CallbackDispatcherThread(const CallbackDispatcherThread &);
-    CallbackDispatcherThread &operator=(const CallbackDispatcherThread &);
-};
-
-////////////////////////////////////////////////////////////////////////////////
-
-struct OMX::CallbackDispatcher : public RefBase {
-    explicit CallbackDispatcher(OMXNodeInstance *owner);
-
-    // Posts |msg| to the listener's queue. If |realTime| is true, the listener thread is notified
-    // that a new message is available on the queue. Otherwise, the message stays on the queue, but
-    // the listener is not notified of it. It will process this message when a subsequent message
-    // is posted with |realTime| set to true.
-    void post(const omx_message &msg, bool realTime = true);
-
-    bool loop();
-
-protected:
-    virtual ~CallbackDispatcher();
-
-private:
-    Mutex mLock;
-
-    OMXNodeInstance *mOwner;
-    bool mDone;
-    Condition mQueueChanged;
-    std::list<omx_message> mQueue;
-
-    sp<CallbackDispatcherThread> mThread;
-
-    void dispatch(std::list<omx_message> &messages);
-
-    CallbackDispatcher(const CallbackDispatcher &);
-    CallbackDispatcher &operator=(const CallbackDispatcher &);
-};
-
-OMX::CallbackDispatcher::CallbackDispatcher(OMXNodeInstance *owner)
-    : mOwner(owner),
-      mDone(false) {
-    mThread = new CallbackDispatcherThread(this);
-    mThread->run("OMXCallbackDisp", ANDROID_PRIORITY_FOREGROUND);
-}
-
-OMX::CallbackDispatcher::~CallbackDispatcher() {
-    {
-        Mutex::Autolock autoLock(mLock);
-
-        mDone = true;
-        mQueueChanged.signal();
-    }
-
-    // A join on self can happen if the last ref to CallbackDispatcher
-    // is released within the CallbackDispatcherThread loop
-    status_t status = mThread->join();
-    if (status != WOULD_BLOCK) {
-        // Other than join to self, the only other error return codes are
-        // whatever readyToRun() returns, and we don't override that
-        CHECK_EQ(status, (status_t)NO_ERROR);
-    }
-}
-
-void OMX::CallbackDispatcher::post(const omx_message &msg, bool realTime) {
-    Mutex::Autolock autoLock(mLock);
-
-    mQueue.push_back(msg);
-    if (realTime) {
-        mQueueChanged.signal();
-    }
-}
-
-void OMX::CallbackDispatcher::dispatch(std::list<omx_message> &messages) {
-    if (mOwner == NULL) {
-        ALOGV("Would have dispatched a message to a node that's already gone.");
-        return;
-    }
-    mOwner->onMessages(messages);
-}
-
-bool OMX::CallbackDispatcher::loop() {
-    for (;;) {
-        std::list<omx_message> messages;
-
-        {
-            Mutex::Autolock autoLock(mLock);
-            while (!mDone && mQueue.empty()) {
-                mQueueChanged.wait(mLock);
-            }
-
-            if (mDone) {
-                break;
-            }
-
-            messages.swap(mQueue);
-        }
-
-        dispatch(messages);
-    }
-
-    return false;
-}
-
-////////////////////////////////////////////////////////////////////////////////
-
-bool OMX::CallbackDispatcherThread::threadLoop() {
-    return mDispatcher->loop();
-}
-
-////////////////////////////////////////////////////////////////////////////////
-
 OMX::OMX()
-    : mMaster(new OMXMaster),
-      mNodeCounter(0) {
+    : mMaster(new OMXMaster) {
 }
 
 OMX::~OMX() {
@@ -177,7 +47,7 @@
 }
 
 void OMX::binderDied(const wp<IBinder> &the_late_who) {
-    OMXNodeInstance *instance;
+    sp<OMXNodeInstance> instance;
 
     {
         Mutex::Autolock autoLock(mLock);
@@ -192,24 +62,9 @@
 
         instance = mLiveNodes.editValueAt(index);
         mLiveNodes.removeItemsAt(index);
-
-        index = mDispatchers.indexOfKey(instance->nodeID());
-        CHECK(index >= 0);
-        mDispatchers.removeItemsAt(index);
-
-        invalidateNodeID_l(instance->nodeID());
     }
 
-    instance->onObserverDied(mMaster);
-}
-
-bool OMX::isSecure(node_id node) {
-    OMXNodeInstance *instance = findInstance(node);
-    return (instance == NULL ? false : instance->isSecure());
-}
-
-bool OMX::livesLocally(node_id /* node */, pid_t pid) {
-    return pid == getpid();
+    instance->onObserverDied();
 }
 
 status_t OMX::listNodes(List<ComponentInfo> *list) {
@@ -242,48 +97,38 @@
 
 status_t OMX::allocateNode(
         const char *name, const sp<IOMXObserver> &observer,
-        sp<IBinder> *nodeBinder, node_id *node) {
+        sp<IOMXNode> *omxNode) {
     Mutex::Autolock autoLock(mLock);
 
-    *node = 0;
-    if (nodeBinder != NULL) {
-        *nodeBinder = NULL;
-    }
+    omxNode->clear();
 
-    if (mNodeIDToInstance.size() == kMaxNodeInstances) {
-        // all possible node IDs are in use
+    if (mLiveNodes.size() == kMaxNodeInstances) {
         return NO_MEMORY;
     }
 
-    OMXNodeInstance *instance = new OMXNodeInstance(this, observer, name);
+    sp<OMXNodeInstance> instance = new OMXNodeInstance(this, observer, name);
 
     OMX_COMPONENTTYPE *handle;
     OMX_ERRORTYPE err = mMaster->makeComponentInstance(
             name, &OMXNodeInstance::kCallbacks,
-            instance, &handle);
+            instance.get(), &handle);
 
     if (err != OMX_ErrorNone) {
         ALOGE("FAILED to allocate omx component '%s' err=%s(%#x)", name, asString(err), err);
 
-        instance->onGetHandleFailed();
-
         return StatusFromOMXError(err);
     }
-
-    *node = makeNodeID_l(instance);
-    mDispatchers.add(*node, new CallbackDispatcher(instance));
-
-    instance->setHandle(*node, handle);
+    instance->setHandle(handle);
 
     mLiveNodes.add(IInterface::asBinder(observer), instance);
     IInterface::asBinder(observer)->linkToDeath(this);
 
+    *omxNode = instance;
+
     return OK;
 }
 
-status_t OMX::freeNode(node_id node) {
-    OMXNodeInstance *instance = findInstance(node);
-
+status_t OMX::freeNode(const sp<OMXNodeInstance> &instance) {
     if (instance == NULL) {
         return OK;
     }
@@ -294,473 +139,44 @@
         if (index < 0) {
             // This could conceivably happen if the observer dies at roughly the
             // same time that a client attempts to free the node explicitly.
-            return OK;
+
+            // NOTE: it's guaranteed that this method is called at most once per
+            //       instance.
+            ALOGV("freeNode: instance already removed from book-keeping.");
+        } else {
+            mLiveNodes.removeItemsAt(index);
+            IInterface::asBinder(instance->observer())->unlinkToDeath(this);
         }
-        mLiveNodes.removeItemsAt(index);
     }
 
-    IInterface::asBinder(instance->observer())->unlinkToDeath(this);
+    CHECK(instance->handle() != NULL);
+    OMX_ERRORTYPE err = mMaster->destroyComponentInstance(
+            static_cast<OMX_COMPONENTTYPE *>(instance->handle()));
+    ALOGV("freeNode: handle destroyed: %p", instance->handle());
 
-    status_t err = instance->freeNode(mMaster);
-
-    {
-        Mutex::Autolock autoLock(mLock);
-        ssize_t index = mDispatchers.indexOfKey(node);
-        CHECK(index >= 0);
-        mDispatchers.removeItemsAt(index);
-    }
-
-    return err;
-}
-
-status_t OMX::sendCommand(
-        node_id node, OMX_COMMANDTYPE cmd, OMX_S32 param) {
-    OMXNodeInstance *instance = findInstance(node);
-
-    if (instance == NULL) {
-        return NAME_NOT_FOUND;
-    }
-
-    return instance->sendCommand(cmd, param);
-}
-
-status_t OMX::getParameter(
-        node_id node, OMX_INDEXTYPE index,
-        void *params, size_t size) {
-    ALOGV("getParameter(%u %#x %p %zd)", node, index, params, size);
-    OMXNodeInstance *instance = findInstance(node);
-
-    if (instance == NULL) {
-        return NAME_NOT_FOUND;
-    }
-
-    return instance->getParameter(
-            index, params, size);
-}
-
-status_t OMX::setParameter(
-        node_id node, OMX_INDEXTYPE index,
-        const void *params, size_t size) {
-    ALOGV("setParameter(%u %#x %p %zd)", node, index, params, size);
-    OMXNodeInstance *instance = findInstance(node);
-
-    if (instance == NULL) {
-        return NAME_NOT_FOUND;
-    }
-
-    return instance->setParameter(
-            index, params, size);
-}
-
-status_t OMX::getConfig(
-        node_id node, OMX_INDEXTYPE index,
-        void *params, size_t size) {
-    OMXNodeInstance *instance = findInstance(node);
-
-    if (instance == NULL) {
-        return NAME_NOT_FOUND;
-    }
-
-    return instance->getConfig(
-            index, params, size);
-}
-
-status_t OMX::setConfig(
-        node_id node, OMX_INDEXTYPE index,
-        const void *params, size_t size) {
-    OMXNodeInstance *instance = findInstance(node);
-
-    if (instance == NULL) {
-        return NAME_NOT_FOUND;
-    }
-
-    return instance->setConfig(
-            index, params, size);
-}
-
-status_t OMX::getState(
-        node_id node, OMX_STATETYPE* state) {
-    OMXNodeInstance *instance = findInstance(node);
-
-    if (instance == NULL) {
-        return NAME_NOT_FOUND;
-    }
-
-    return instance->getState(
-            state);
-}
-
-status_t OMX::enableNativeBuffers(
-        node_id node, OMX_U32 port_index, OMX_BOOL graphic, OMX_BOOL enable) {
-    OMXNodeInstance *instance = findInstance(node);
-
-    if (instance == NULL) {
-        return NAME_NOT_FOUND;
-    }
-
-    return instance->enableNativeBuffers(port_index, graphic, enable);
-}
-
-status_t OMX::getGraphicBufferUsage(
-        node_id node, OMX_U32 port_index, OMX_U32* usage) {
-    OMXNodeInstance *instance = findInstance(node);
-
-    if (instance == NULL) {
-        return NAME_NOT_FOUND;
-    }
-
-    return instance->getGraphicBufferUsage(port_index, usage);
-}
-
-status_t OMX::storeMetaDataInBuffers(
-        node_id node, OMX_U32 port_index, OMX_BOOL enable, MetadataBufferType *type) {
-    OMXNodeInstance *instance = findInstance(node);
-
-    if (instance == NULL) {
-        return NAME_NOT_FOUND;
-    }
-
-    return instance->storeMetaDataInBuffers(port_index, enable, type);
-}
-
-status_t OMX::prepareForAdaptivePlayback(
-        node_id node, OMX_U32 portIndex, OMX_BOOL enable,
-        OMX_U32 maxFrameWidth, OMX_U32 maxFrameHeight) {
-    OMXNodeInstance *instance = findInstance(node);
-
-    if (instance == NULL) {
-        return NAME_NOT_FOUND;
-    }
-
-    return instance->prepareForAdaptivePlayback(
-            portIndex, enable, maxFrameWidth, maxFrameHeight);
-}
-
-status_t OMX::configureVideoTunnelMode(
-        node_id node, OMX_U32 portIndex, OMX_BOOL tunneled,
-        OMX_U32 audioHwSync, native_handle_t **sidebandHandle) {
-    OMXNodeInstance *instance = findInstance(node);
-
-    if (instance == NULL) {
-        return NAME_NOT_FOUND;
-    }
-
-    return instance->configureVideoTunnelMode(
-            portIndex, tunneled, audioHwSync, sidebandHandle);
-}
-
-status_t OMX::useBuffer(
-        node_id node, OMX_U32 port_index, const sp<IMemory> &params,
-        buffer_id *buffer, OMX_U32 allottedSize) {
-    OMXNodeInstance *instance = findInstance(node);
-
-    if (instance == NULL) {
-        return NAME_NOT_FOUND;
-    }
-
-    return instance->useBuffer(
-            port_index, params, buffer, allottedSize);
-}
-
-status_t OMX::useGraphicBuffer(
-        node_id node, OMX_U32 port_index,
-        const sp<GraphicBuffer> &graphicBuffer, buffer_id *buffer) {
-    OMXNodeInstance *instance = findInstance(node);
-
-    if (instance == NULL) {
-        return NAME_NOT_FOUND;
-    }
-
-    return instance->useGraphicBuffer(
-            port_index, graphicBuffer, buffer);
-}
-
-status_t OMX::updateGraphicBufferInMeta(
-        node_id node, OMX_U32 port_index,
-        const sp<GraphicBuffer> &graphicBuffer, buffer_id buffer) {
-    OMXNodeInstance *instance = findInstance(node);
-
-    if (instance == NULL) {
-        return NAME_NOT_FOUND;
-    }
-
-    return instance->updateGraphicBufferInMeta(
-            port_index, graphicBuffer, buffer);
-}
-
-status_t OMX::updateNativeHandleInMeta(
-        node_id node, OMX_U32 port_index,
-        const sp<NativeHandle> &nativeHandle, buffer_id buffer) {
-    OMXNodeInstance *instance = findInstance(node);
-
-    if (instance == NULL) {
-        return NAME_NOT_FOUND;
-    }
-
-    return instance->updateNativeHandleInMeta(
-            port_index, nativeHandle, buffer);
+    return StatusFromOMXError(err);
 }
 
 status_t OMX::createInputSurface(
-        node_id node, OMX_U32 port_index, android_dataspace dataSpace,
-        sp<IGraphicBufferProducer> *bufferProducer, MetadataBufferType *type) {
-    OMXNodeInstance *instance = findInstance(node);
-
-    if (instance == NULL) {
-        return NAME_NOT_FOUND;
-    }
-
-    return instance->createInputSurface(
-            port_index, dataSpace, bufferProducer, type);
-}
-
-status_t OMX::createPersistentInputSurface(
         sp<IGraphicBufferProducer> *bufferProducer,
-        sp<IGraphicBufferConsumer> *bufferConsumer) {
-    return OMXNodeInstance::createPersistentInputSurface(
-            bufferProducer, bufferConsumer);
-}
-
-status_t OMX::setInputSurface(
-        node_id node, OMX_U32 port_index,
-        const sp<IGraphicBufferConsumer> &bufferConsumer, MetadataBufferType *type) {
-    OMXNodeInstance *instance = findInstance(node);
-
-    if (instance == NULL) {
-        return NAME_NOT_FOUND;
+        sp<IGraphicBufferSource> *bufferSource) {
+    if (bufferProducer == NULL || bufferSource == NULL) {
+        ALOGE("b/25884056");
+        return BAD_VALUE;
     }
 
-    return instance->setInputSurface(port_index, bufferConsumer, type);
-}
-
-
-status_t OMX::signalEndOfInputStream(node_id node) {
-    OMXNodeInstance *instance = findInstance(node);
-
-    if (instance == NULL) {
-        return NAME_NOT_FOUND;
+    sp<GraphicBufferSource> graphicBufferSource = new GraphicBufferSource();
+    status_t err = graphicBufferSource->initCheck();
+    if (err != OK) {
+        ALOGE("Failed to create persistent input surface: %s (%d)",
+                strerror(-err), err);
+        return err;
     }
 
-    return instance->signalEndOfInputStream();
-}
+    *bufferProducer = graphicBufferSource->getIGraphicBufferProducer();
+    *bufferSource = new BWGraphicBufferSource(graphicBufferSource);
 
-status_t OMX::allocateSecureBuffer(
-        node_id node, OMX_U32 port_index, size_t size,
-        buffer_id *buffer, void **buffer_data, sp<NativeHandle> *native_handle) {
-    OMXNodeInstance *instance = findInstance(node);
-
-    if (instance == NULL) {
-        return NAME_NOT_FOUND;
-    }
-
-    return instance->allocateSecureBuffer(
-            port_index, size, buffer, buffer_data, native_handle);
-}
-
-status_t OMX::allocateBufferWithBackup(
-        node_id node, OMX_U32 port_index, const sp<IMemory> &params,
-        buffer_id *buffer, OMX_U32 allottedSize) {
-    OMXNodeInstance *instance = findInstance(node);
-
-    if (instance == NULL) {
-        return NAME_NOT_FOUND;
-    }
-
-    return instance->allocateBufferWithBackup(
-            port_index, params, buffer, allottedSize);
-}
-
-status_t OMX::freeBuffer(node_id node, OMX_U32 port_index, buffer_id buffer) {
-    OMXNodeInstance *instance = findInstance(node);
-
-    if (instance == NULL) {
-        return NAME_NOT_FOUND;
-    }
-
-    return instance->freeBuffer(
-            port_index, buffer);
-}
-
-status_t OMX::fillBuffer(node_id node, buffer_id buffer, int fenceFd) {
-    OMXNodeInstance *instance = findInstance(node);
-
-    if (instance == NULL) {
-        return NAME_NOT_FOUND;
-    }
-
-    return instance->fillBuffer(buffer, fenceFd);
-}
-
-status_t OMX::emptyBuffer(
-        node_id node,
-        buffer_id buffer,
-        OMX_U32 range_offset, OMX_U32 range_length,
-        OMX_U32 flags, OMX_TICKS timestamp, int fenceFd) {
-    OMXNodeInstance *instance = findInstance(node);
-
-    if (instance == NULL) {
-        return NAME_NOT_FOUND;
-    }
-
-    return instance->emptyBuffer(
-            buffer, range_offset, range_length, flags, timestamp, fenceFd);
-}
-
-status_t OMX::getExtensionIndex(
-        node_id node,
-        const char *parameter_name,
-        OMX_INDEXTYPE *index) {
-    OMXNodeInstance *instance = findInstance(node);
-
-    if (instance == NULL) {
-        return NAME_NOT_FOUND;
-    }
-
-    return instance->getExtensionIndex(
-            parameter_name, index);
-}
-
-status_t OMX::setInternalOption(
-        node_id node,
-        OMX_U32 port_index,
-        InternalOptionType type,
-        const void *data,
-        size_t size) {
-    OMXNodeInstance *instance = findInstance(node);
-
-    if (instance == NULL) {
-        return NAME_NOT_FOUND;
-    }
-
-    return instance->setInternalOption(port_index, type, data, size);
-}
-
-OMX_ERRORTYPE OMX::OnEvent(
-        node_id node,
-        OMX_IN OMX_EVENTTYPE eEvent,
-        OMX_IN OMX_U32 nData1,
-        OMX_IN OMX_U32 nData2,
-        OMX_IN OMX_PTR pEventData) {
-    ALOGV("OnEvent(%d, %" PRIu32", %" PRIu32 ")", eEvent, nData1, nData2);
-    OMXNodeInstance *instance = findInstance(node);
-
-    if (instance == NULL) {
-        return OMX_ErrorComponentNotFound;
-    }
-
-    // Forward to OMXNodeInstance.
-    instance->onEvent(eEvent, nData1, nData2);
-
-    sp<OMX::CallbackDispatcher> dispatcher = findDispatcher(node);
-
-    // output rendered events are not processed as regular events until they hit the observer
-    if (eEvent == OMX_EventOutputRendered) {
-        if (pEventData == NULL) {
-            return OMX_ErrorBadParameter;
-        }
-
-        // process data from array
-        OMX_VIDEO_RENDEREVENTTYPE *renderData = (OMX_VIDEO_RENDEREVENTTYPE *)pEventData;
-        for (size_t i = 0; i < nData1; ++i) {
-            omx_message msg;
-            msg.type = omx_message::FRAME_RENDERED;
-            msg.node = node;
-            msg.fenceFd = -1;
-            msg.u.render_data.timestamp = renderData[i].nMediaTimeUs;
-            msg.u.render_data.nanoTime = renderData[i].nSystemTimeNs;
-
-            dispatcher->post(msg, false /* realTime */);
-        }
-        return OMX_ErrorNone;
-    }
-
-    omx_message msg;
-    msg.type = omx_message::EVENT;
-    msg.node = node;
-    msg.fenceFd = -1;
-    msg.u.event_data.event = eEvent;
-    msg.u.event_data.data1 = nData1;
-    msg.u.event_data.data2 = nData2;
-
-    dispatcher->post(msg, true /* realTime */);
-
-    return OMX_ErrorNone;
-}
-
-OMX_ERRORTYPE OMX::OnEmptyBufferDone(
-        node_id node, buffer_id buffer, OMX_IN OMX_BUFFERHEADERTYPE *pBuffer, int fenceFd) {
-    ALOGV("OnEmptyBufferDone buffer=%p", pBuffer);
-
-    omx_message msg;
-    msg.type = omx_message::EMPTY_BUFFER_DONE;
-    msg.node = node;
-    msg.fenceFd = fenceFd;
-    msg.u.buffer_data.buffer = buffer;
-
-    findDispatcher(node)->post(msg);
-
-    return OMX_ErrorNone;
-}
-
-OMX_ERRORTYPE OMX::OnFillBufferDone(
-        node_id node, buffer_id buffer, OMX_IN OMX_BUFFERHEADERTYPE *pBuffer, int fenceFd) {
-    ALOGV("OnFillBufferDone buffer=%p", pBuffer);
-
-    omx_message msg;
-    msg.type = omx_message::FILL_BUFFER_DONE;
-    msg.node = node;
-    msg.fenceFd = fenceFd;
-    msg.u.extended_buffer_data.buffer = buffer;
-    msg.u.extended_buffer_data.range_offset = pBuffer->nOffset;
-    msg.u.extended_buffer_data.range_length = pBuffer->nFilledLen;
-    msg.u.extended_buffer_data.flags = pBuffer->nFlags;
-    msg.u.extended_buffer_data.timestamp = pBuffer->nTimeStamp;
-
-    findDispatcher(node)->post(msg);
-
-    return OMX_ErrorNone;
-}
-
-OMX::node_id OMX::makeNodeID_l(OMXNodeInstance *instance) {
-    // mLock is already held.
-
-    node_id prefix = node_id(getpid() << 16);
-    node_id node = 0;
-    do  {
-        if (++mNodeCounter >= kMaxNodeInstances) {
-            mNodeCounter = 0; // OK to use because we're combining with the pid
-        }
-        node = node_id(prefix | mNodeCounter);
-    } while (mNodeIDToInstance.indexOfKey(node) >= 0);
-    mNodeIDToInstance.add(node, instance);
-
-    return node;
-}
-
-OMXNodeInstance *OMX::findInstance(node_id node) {
-    Mutex::Autolock autoLock(mLock);
-
-    ssize_t index = mNodeIDToInstance.indexOfKey(node);
-
-    return index < 0 ? NULL : mNodeIDToInstance.valueAt(index);
-}
-
-sp<OMX::CallbackDispatcher> OMX::findDispatcher(node_id node) {
-    Mutex::Autolock autoLock(mLock);
-
-    ssize_t index = mDispatchers.indexOfKey(node);
-
-    return index < 0 ? NULL : mDispatchers.valueAt(index);
-}
-
-void OMX::invalidateNodeID(node_id node) {
-    Mutex::Autolock autoLock(mLock);
-    invalidateNodeID_l(node);
-}
-
-void OMX::invalidateNodeID_l(node_id node) {
-    // mLock is held.
-    mNodeIDToInstance.removeItem(node);
+    return OK;
 }
 
 }  // namespace android
diff --git a/media/libstagefright/omx/OMXMaster.cpp b/media/libstagefright/omx/OMXMaster.cpp
index 6132a2c..ac9b0c3 100644
--- a/media/libstagefright/omx/OMXMaster.cpp
+++ b/media/libstagefright/omx/OMXMaster.cpp
@@ -32,26 +32,23 @@
 OMXMaster::OMXMaster()
     : mVendorLibHandle(NULL) {
 
-    mProcessName[0] = 0;
-    if (mProcessName[0] == 0) {
-        pid_t pid = getpid();
-        char filename[20];
-        snprintf(filename, sizeof(filename), "/proc/%d/comm", pid);
-        int fd = open(filename, O_RDONLY);
-        if (fd < 0) {
-            ALOGW("couldn't determine process name");
-            sprintf(mProcessName, "<unknown>");
-        } else {
-            ssize_t len = read(fd, mProcessName, sizeof(mProcessName));
-            if (len < 2) {
-                ALOGW("couldn't determine process name");
-                sprintf(mProcessName, "<unknown>");
-            } else {
-                // the name is newline terminated, so erase the newline
-                mProcessName[len - 1] = 0;
-            }
-            close(fd);
-        }
+    pid_t pid = getpid();
+    char filename[20];
+    snprintf(filename, sizeof(filename), "/proc/%d/comm", pid);
+    int fd = open(filename, O_RDONLY);
+    if (fd < 0) {
+      ALOGW("couldn't determine process name");
+      strlcpy(mProcessName, "<unknown>", sizeof(mProcessName));
+    } else {
+      ssize_t len = read(fd, mProcessName, sizeof(mProcessName));
+      if (len < 2) {
+        ALOGW("couldn't determine process name");
+        strlcpy(mProcessName, "<unknown>", sizeof(mProcessName));
+      } else {
+        // the name is newline terminated, so erase the newline
+        mProcessName[len - 1] = 0;
+      }
+      close(fd);
     }
 
     addVendorPlugin();
diff --git a/media/libstagefright/omx/OMXNodeInstance.cpp b/media/libstagefright/omx/OMXNodeInstance.cpp
index 355a2dd..39ed759 100644
--- a/media/libstagefright/omx/OMXNodeInstance.cpp
+++ b/media/libstagefright/omx/OMXNodeInstance.cpp
@@ -23,10 +23,11 @@
 #include "../include/OMXNodeInstance.h"
 #include "OMXMaster.h"
 #include "OMXUtils.h"
-#include "GraphicBufferSource.h"
+#include <android/IOMXBufferSource.h>
 
 #include <OMX_Component.h>
 #include <OMX_IndexExt.h>
+#include <OMX_VideoExt.h>
 #include <OMX_AsString.h>
 
 #include <binder/IMemory.h>
@@ -35,26 +36,39 @@
 #include <HardwareAPI.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/ABuffer.h>
+#include <media/stagefright/foundation/ColorUtils.h>
 #include <media/stagefright/MediaErrors.h>
 #include <utils/misc.h>
 #include <utils/NativeHandle.h>
+#include <media/OMXBuffer.h>
+
+#include <hidlmemory/mapping.h>
 
 static const OMX_U32 kPortIndexInput = 0;
 static const OMX_U32 kPortIndexOutput = 1;
 
-#define CLOGW(fmt, ...) ALOGW("[%x:%s] " fmt, mNodeID, mName, ##__VA_ARGS__)
+// Quirk still supported, even though deprecated
+enum Quirks {
+    kRequiresAllocateBufferOnInputPorts   = 1,
+    kRequiresAllocateBufferOnOutputPorts  = 2,
+
+    kQuirksMask = kRequiresAllocateBufferOnInputPorts
+                | kRequiresAllocateBufferOnOutputPorts,
+};
+
+#define CLOGW(fmt, ...) ALOGW("[%p:%s] " fmt, mHandle, mName, ##__VA_ARGS__)
 
 #define CLOG_ERROR_IF(cond, fn, err, fmt, ...) \
-    ALOGE_IF(cond, #fn "(%x:%s, " fmt ") ERROR: %s(%#x)", \
-    mNodeID, mName, ##__VA_ARGS__, asString(err), err)
+    ALOGE_IF(cond, #fn "(%p:%s, " fmt ") ERROR: %s(%#x)", \
+    mHandle, mName, ##__VA_ARGS__, asString(err), err)
 #define CLOG_ERROR(fn, err, fmt, ...) CLOG_ERROR_IF(true, fn, err, fmt, ##__VA_ARGS__)
 #define CLOG_IF_ERROR(fn, err, fmt, ...) \
     CLOG_ERROR_IF((err) != OMX_ErrorNone, fn, err, fmt, ##__VA_ARGS__)
 
 #define CLOGI_(level, fn, fmt, ...) \
-    ALOGI_IF(DEBUG >= (level), #fn "(%x:%s, " fmt ")", mNodeID, mName, ##__VA_ARGS__)
+    ALOGI_IF(DEBUG >= (level), #fn "(%p:%s, " fmt ")", mHandle, mName, ##__VA_ARGS__)
 #define CLOGD_(level, fn, fmt, ...) \
-    ALOGD_IF(DEBUG >= (level), #fn "(%x:%s, " fmt ")", mNodeID, mName, ##__VA_ARGS__)
+    ALOGD_IF(DEBUG >= (level), #fn "(%p:%s, " fmt ")", mHandle, mName, ##__VA_ARGS__)
 
 #define CLOG_LIFE(fn, fmt, ...)     CLOGI_(ADebug::kDebugLifeCycle,     fn, fmt, ##__VA_ARGS__)
 #define CLOG_STATE(fn, fmt, ...)    CLOGI_(ADebug::kDebugState,         fn, fmt, ##__VA_ARGS__)
@@ -62,7 +76,7 @@
 #define CLOG_INTERNAL(fn, fmt, ...) CLOGD_(ADebug::kDebugInternalState, fn, fmt, ##__VA_ARGS__)
 
 #define CLOG_DEBUG_IF(cond, fn, fmt, ...) \
-    ALOGD_IF(cond, #fn "(%x, " fmt ")", mNodeID, ##__VA_ARGS__)
+    ALOGD_IF(cond, #fn "(%p, " fmt ")", mHandle, ##__VA_ARGS__)
 
 #define CLOG_BUFFER(fn, fmt, ...) \
     CLOG_DEBUG_IF(DEBUG >= ADebug::kDebugAll, fn, fmt, ##__VA_ARGS__)
@@ -94,18 +108,18 @@
 
 struct BufferMeta {
     explicit BufferMeta(
-            const sp<IMemory> &mem, OMX_U32 portIndex, bool copyToOmx,
-            bool copyFromOmx, OMX_U8 *backup)
+            const sp<IMemory> &mem, const sp<IHidlMemory> &hidlMemory,
+            OMX_U32 portIndex, bool copy, OMX_U8 *backup)
         : mMem(mem),
-          mCopyFromOmx(copyFromOmx),
-          mCopyToOmx(copyToOmx),
+          mHidlMemory(hidlMemory),
+          mCopyFromOmx(portIndex == kPortIndexOutput && copy),
+          mCopyToOmx(portIndex == kPortIndexInput && copy),
           mPortIndex(portIndex),
           mBackup(backup) {
     }
 
-    explicit BufferMeta(size_t size, OMX_U32 portIndex)
-        : mSize(size),
-          mCopyFromOmx(false),
+    explicit BufferMeta(OMX_U32 portIndex)
+        : mCopyFromOmx(false),
           mCopyToOmx(false),
           mPortIndex(portIndex),
           mBackup(NULL) {
@@ -119,15 +133,21 @@
           mBackup(NULL) {
     }
 
+    OMX_U8 *getPointer() {
+        return mMem.get() ? static_cast<OMX_U8*>(mMem->pointer()) :
+                mHidlMemory.get() ? static_cast<OMX_U8*>(
+                static_cast<void*>(mHidlMemory->getPointer())) : nullptr;
+    }
+
     void CopyFromOMX(const OMX_BUFFERHEADERTYPE *header) {
         if (!mCopyFromOmx) {
             return;
         }
 
         // check component returns proper range
-        sp<ABuffer> codec = getBuffer(header, false /* backup */, true /* limit */);
+        sp<ABuffer> codec = getBuffer(header, true /* limit */);
 
-        memcpy((OMX_U8 *)mMem->pointer() + header->nOffset, codec->data(), codec->size());
+        memcpy(getPointer() + header->nOffset, codec->data(), codec->size());
     }
 
     void CopyToOMX(const OMX_BUFFERHEADERTYPE *header) {
@@ -136,18 +156,13 @@
         }
 
         memcpy(header->pBuffer + header->nOffset,
-                (const OMX_U8 *)mMem->pointer() + header->nOffset,
+                getPointer() + header->nOffset,
                 header->nFilledLen);
     }
 
-    // return either the codec or the backup buffer
-    sp<ABuffer> getBuffer(const OMX_BUFFERHEADERTYPE *header, bool backup, bool limit) {
-        sp<ABuffer> buf;
-        if (backup && mMem != NULL) {
-            buf = new ABuffer(mMem->pointer(), mMem->size());
-        } else {
-            buf = new ABuffer(header->pBuffer, header->nAllocLen);
-        }
+    // return the codec buffer
+    sp<ABuffer> getBuffer(const OMX_BUFFERHEADERTYPE *header, bool limit) {
+        sp<ABuffer> buf = new ABuffer(header->pBuffer, header->nAllocLen);
         if (limit) {
             if (header->nOffset + header->nFilledLen > header->nOffset
                     && header->nOffset + header->nFilledLen <= header->nAllocLen) {
@@ -179,7 +194,7 @@
     sp<GraphicBuffer> mGraphicBuffer;
     sp<NativeHandle> mNativeHandle;
     sp<IMemory> mMem;
-    size_t mSize;
+    sp<IHidlMemory> mHidlMemory;
     bool mCopyFromOmx;
     bool mCopyToOmx;
     OMX_U32 mPortIndex;
@@ -203,16 +218,144 @@
     }
 }
 
-OMXNodeInstance::OMXNodeInstance(
-        OMX *owner, const sp<IOMXObserver> &observer, const char *name)
+////////////////////////////////////////////////////////////////////////////////
+
+// This provides the underlying Thread used by CallbackDispatcher.
+// Note that deriving CallbackDispatcher from Thread does not work.
+
+struct OMXNodeInstance::CallbackDispatcherThread : public Thread {
+    explicit CallbackDispatcherThread(CallbackDispatcher *dispatcher)
+        : mDispatcher(dispatcher) {
+    }
+
+private:
+    CallbackDispatcher *mDispatcher;
+
+    bool threadLoop();
+
+    CallbackDispatcherThread(const CallbackDispatcherThread &);
+    CallbackDispatcherThread &operator=(const CallbackDispatcherThread &);
+};
+
+////////////////////////////////////////////////////////////////////////////////
+
+struct OMXNodeInstance::CallbackDispatcher : public RefBase {
+    explicit CallbackDispatcher(const sp<OMXNodeInstance> &owner);
+
+    // Posts |msg| to the listener's queue. If |realTime| is true, the listener thread is notified
+    // that a new message is available on the queue. Otherwise, the message stays on the queue, but
+    // the listener is not notified of it. It will process this message when a subsequent message
+    // is posted with |realTime| set to true.
+    void post(const omx_message &msg, bool realTime = true);
+
+    bool loop();
+
+protected:
+    virtual ~CallbackDispatcher();
+
+private:
+    Mutex mLock;
+
+    sp<OMXNodeInstance> const mOwner;
+    bool mDone;
+    Condition mQueueChanged;
+    std::list<omx_message> mQueue;
+
+    sp<CallbackDispatcherThread> mThread;
+
+    void dispatch(std::list<omx_message> &messages);
+
+    CallbackDispatcher(const CallbackDispatcher &);
+    CallbackDispatcher &operator=(const CallbackDispatcher &);
+};
+
+OMXNodeInstance::CallbackDispatcher::CallbackDispatcher(const sp<OMXNodeInstance> &owner)
     : mOwner(owner),
-      mNodeID(0),
+      mDone(false) {
+    mThread = new CallbackDispatcherThread(this);
+    mThread->run("OMXCallbackDisp", ANDROID_PRIORITY_FOREGROUND);
+}
+
+OMXNodeInstance::CallbackDispatcher::~CallbackDispatcher() {
+    {
+        Mutex::Autolock autoLock(mLock);
+
+        mDone = true;
+        mQueueChanged.signal();
+    }
+
+    // A join on self can happen if the last ref to CallbackDispatcher
+    // is released within the CallbackDispatcherThread loop
+    status_t status = mThread->join();
+    if (status != WOULD_BLOCK) {
+        // Other than join to self, the only other error return codes are
+        // whatever readyToRun() returns, and we don't override that
+        CHECK_EQ(status, (status_t)NO_ERROR);
+    }
+}
+
+void OMXNodeInstance::CallbackDispatcher::post(const omx_message &msg, bool realTime) {
+    Mutex::Autolock autoLock(mLock);
+
+    mQueue.push_back(msg);
+    if (realTime) {
+        mQueueChanged.signal();
+    }
+}
+
+void OMXNodeInstance::CallbackDispatcher::dispatch(std::list<omx_message> &messages) {
+    if (mOwner == NULL) {
+        ALOGV("Would have dispatched a message to a node that's already gone.");
+        return;
+    }
+    mOwner->onMessages(messages);
+}
+
+bool OMXNodeInstance::CallbackDispatcher::loop() {
+    for (;;) {
+        std::list<omx_message> messages;
+
+        {
+            Mutex::Autolock autoLock(mLock);
+            while (!mDone && mQueue.empty()) {
+                mQueueChanged.wait(mLock);
+            }
+
+            if (mDone) {
+                break;
+            }
+
+            messages.swap(mQueue);
+        }
+
+        dispatch(messages);
+    }
+
+    return false;
+}
+
+////////////////////////////////////////////////////////////////////////////////
+
+bool OMXNodeInstance::CallbackDispatcherThread::threadLoop() {
+    return mDispatcher->loop();
+}
+
+////////////////////////////////////////////////////////////////////////////////
+
+OMXNodeInstance::OMXNodeInstance(
+        OmxNodeOwner *owner, const sp<IOMXObserver> &observer, const char *name)
+    : mOwner(owner),
       mHandle(NULL),
       mObserver(observer),
       mDying(false),
       mSailed(false),
       mQueriedProhibitedExtensions(false),
-      mBufferIDCount(0)
+      mQuirks(0),
+      mBufferIDCount(0),
+      mRestorePtsFailed(false),
+      mMaxTimestampGapUs(-1ll),
+      mPrevOriginalTimeUs(-1ll),
+      mPrevModifiedTimeUs(-1ll)
 {
     mName = ADebug::GetDebugName(name);
     DEBUG = ADebug::GetDebugLevelFromProperty(name, "debug.stagefright.omx-debug");
@@ -224,9 +367,12 @@
     mDebugLevelBumpPendingBuffers[1] = 0;
     mMetadataType[0] = kMetadataBufferTypeInvalid;
     mMetadataType[1] = kMetadataBufferTypeInvalid;
+    mPortMode[0] = IOMX::kPortModePresetByteBuffer;
+    mPortMode[1] = IOMX::kPortModePresetByteBuffer;
     mSecureBufferType[0] = kSecureBufferTypeUnknown;
     mSecureBufferType[1] = kSecureBufferTypeUnknown;
     mIsSecure = AString(name).endsWith(".secure");
+    mLegacyAdaptiveExperiment = ADebug::isExperimentEnabled("legacy-adaptive");
 }
 
 OMXNodeInstance::~OMXNodeInstance() {
@@ -234,46 +380,38 @@
     CHECK(mHandle == NULL);
 }
 
-void OMXNodeInstance::setHandle(OMX::node_id node_id, OMX_HANDLETYPE handle) {
-    mNodeID = node_id;
+void OMXNodeInstance::setHandle(OMX_HANDLETYPE handle) {
     CLOG_LIFE(allocateNode, "handle=%p", handle);
     CHECK(mHandle == NULL);
     mHandle = handle;
+    if (handle != NULL) {
+        mDispatcher = new CallbackDispatcher(this);
+    }
 }
 
-sp<GraphicBufferSource> OMXNodeInstance::getGraphicBufferSource() {
-    Mutex::Autolock autoLock(mGraphicBufferSourceLock);
-    return mGraphicBufferSource;
+sp<IOMXBufferSource> OMXNodeInstance::getBufferSource() {
+    Mutex::Autolock autoLock(mOMXBufferSourceLock);
+    return mOMXBufferSource;
 }
 
-void OMXNodeInstance::setGraphicBufferSource(
-        const sp<GraphicBufferSource>& bufferSource) {
-    Mutex::Autolock autoLock(mGraphicBufferSourceLock);
-    CLOG_INTERNAL(setGraphicBufferSource, "%p", bufferSource.get());
-    mGraphicBufferSource = bufferSource;
+void OMXNodeInstance::setBufferSource(const sp<IOMXBufferSource>& bufferSource) {
+    Mutex::Autolock autoLock(mOMXBufferSourceLock);
+    CLOG_INTERNAL(setBufferSource, "%p", bufferSource.get());
+    mOMXBufferSource = bufferSource;
 }
 
-OMX *OMXNodeInstance::owner() {
-    return mOwner;
+OMX_HANDLETYPE OMXNodeInstance::handle() {
+    return mHandle;
 }
 
 sp<IOMXObserver> OMXNodeInstance::observer() {
     return mObserver;
 }
 
-OMX::node_id OMXNodeInstance::nodeID() {
-    return mNodeID;
-}
-
-status_t OMXNodeInstance::freeNode(OMXMaster *master) {
+status_t OMXNodeInstance::freeNode() {
     CLOG_LIFE(freeNode, "handle=%p", mHandle);
     static int32_t kMaxNumIterations = 10;
 
-    // exit if we have already freed the node
-    if (mHandle == NULL) {
-        return OK;
-    }
-
     // Transition the node from its current state all the way down
     // to "Loaded".
     // This ensures that all active buffers are properly freed even
@@ -283,7 +421,13 @@
     // The code below may trigger some more events to be dispatched
     // by the OMX component - we want to ignore them as our client
     // does not expect them.
-    mDying = true;
+    bool expected = false;
+    if (!mDying.compare_exchange_strong(expected, true)) {
+        // exit if we have already freed the node or doing so right now.
+        // NOTE: this ensures that the block below executes at most once.
+        ALOGV("Already dying");
+        return OK;
+    }
 
     OMX_STATETYPE state;
     CHECK_EQ(OMX_GetState(mHandle, &state), OMX_ErrorNone);
@@ -350,43 +494,35 @@
             LOG_ALWAYS_FATAL("unknown state %s(%#x).", asString(state), state);
             break;
     }
+    status_t err = mOwner->freeNode(this);
 
-    ALOGV("[%x:%s] calling destroyComponentInstance", mNodeID, mName);
-    OMX_ERRORTYPE err = master->destroyComponentInstance(
-            static_cast<OMX_COMPONENTTYPE *>(mHandle));
+    mDispatcher.clear();
+    mOMXBufferSource.clear();
 
     mHandle = NULL;
     CLOG_IF_ERROR(freeNode, err, "");
     free(mName);
     mName = NULL;
 
-    mOwner->invalidateNodeID(mNodeID);
-    mNodeID = 0;
-
     ALOGV("OMXNodeInstance going away.");
-    delete this;
 
-    return StatusFromOMXError(err);
+    return err;
 }
 
 status_t OMXNodeInstance::sendCommand(
         OMX_COMMANDTYPE cmd, OMX_S32 param) {
-    if (cmd == OMX_CommandStateSet) {
-        // There are no configurations past first StateSet command.
-        mSailed = true;
-    }
-    const sp<GraphicBufferSource> bufferSource(getGraphicBufferSource());
+    const sp<IOMXBufferSource> bufferSource(getBufferSource());
     if (bufferSource != NULL && cmd == OMX_CommandStateSet) {
         if (param == OMX_StateIdle) {
             // Initiating transition from Executing -> Idle
             // ACodec is waiting for all buffers to be returned, do NOT
             // submit any more buffers to the codec.
-            bufferSource->omxIdle();
+            bufferSource->onOmxIdle();
         } else if (param == OMX_StateLoaded) {
             // Initiating transition from Idle/Executing -> Loaded
             // Buffers are about to be freed.
-            bufferSource->omxLoaded();
-            setGraphicBufferSource(NULL);
+            bufferSource->onOmxLoaded();
+            setBufferSource(NULL);
         }
 
         // fall through
@@ -394,6 +530,11 @@
 
     Mutex::Autolock autoLock(mLock);
 
+    if (cmd == OMX_CommandStateSet) {
+        // There are no configurations past first StateSet command.
+        mSailed = true;
+    }
+
     // bump internal-state debug level for 2 input and output frames past a command
     {
         Mutex::Autolock _l(mDebugLock);
@@ -422,18 +563,17 @@
         "OMX.google.android.index.getAndroidNativeBufferUsage",
     };
 
-    if ((index > OMX_IndexComponentStartUnused && index <= OMX_IndexParamStandardComponentRole)
-            || (index > OMX_IndexPortStartUnused && index <= OMX_IndexParamCompBufferSupplier)
-            || (index > OMX_IndexAudioStartUnused && index <= OMX_IndexConfigAudioChannelVolume)
-            || (index > OMX_IndexVideoStartUnused && index <= OMX_IndexConfigVideoNalSize)
-            || (index > OMX_IndexCommonStartUnused
-                    && index <= OMX_IndexConfigCommonTransitionEffect)
+    if ((index > OMX_IndexComponentStartUnused && index < OMX_IndexComponentEndUnused)
+            || (index > OMX_IndexPortStartUnused && index < OMX_IndexPortEndUnused)
+            || (index > OMX_IndexAudioStartUnused && index < OMX_IndexAudioEndUnused)
+            || (index > OMX_IndexVideoStartUnused && index < OMX_IndexVideoEndUnused)
+            || (index > OMX_IndexCommonStartUnused && index < OMX_IndexCommonEndUnused)
             || (index > (OMX_INDEXTYPE)OMX_IndexExtAudioStartUnused
-                    && index <= (OMX_INDEXTYPE)OMX_IndexParamAudioProfileQuerySupported)
+                    && index < (OMX_INDEXTYPE)OMX_IndexExtAudioEndUnused)
             || (index > (OMX_INDEXTYPE)OMX_IndexExtVideoStartUnused
-                    && index <= (OMX_INDEXTYPE)OMX_IndexConfigAndroidVideoTemporalLayering)
+                    && index < (OMX_INDEXTYPE)OMX_IndexExtVideoEndUnused)
             || (index > (OMX_INDEXTYPE)OMX_IndexExtOtherStartUnused
-                    && index <= (OMX_INDEXTYPE)OMX_IndexParamConsumerUsageBits)) {
+                    && index < (OMX_INDEXTYPE)OMX_IndexExtOtherEndUnused)) {
         return false;
     }
 
@@ -474,6 +614,10 @@
     OMX_INDEXEXTTYPE extIndex = (OMX_INDEXEXTTYPE)index;
     CLOG_CONFIG(setParameter, "%s(%#x), %zu@%p)", asString(extIndex), index, size, params);
 
+    if (extIndex == OMX_IndexParamMaxFrameDurationForBitrateControl) {
+        return setMaxPtsGapUs(params, size);
+    }
+
     if (isProhibitedIndex_l(index)) {
         android_errorWriteLog(0x534e4554, "29422020");
         return BAD_INDEX;
@@ -520,15 +664,114 @@
     return StatusFromOMXError(err);
 }
 
-status_t OMXNodeInstance::getState(OMX_STATETYPE* state) {
+status_t OMXNodeInstance::setPortMode(OMX_U32 portIndex, IOMX::PortMode mode) {
     Mutex::Autolock autoLock(mLock);
 
-    OMX_ERRORTYPE err = OMX_GetState(mHandle, state);
-    CLOG_IF_ERROR(getState, err, "");
-    return StatusFromOMXError(err);
+    if (portIndex >= NELEM(mPortMode)) {
+        ALOGE("b/31385713, portIndex(%u)", portIndex);
+        android_errorWriteLog(0x534e4554, "31385713");
+        return BAD_VALUE;
+    }
+
+    CLOG_CONFIG(setPortMode, "%s(%d), port %d", asString(mode), mode, portIndex);
+
+    switch (mode) {
+    case IOMX::kPortModeDynamicANWBuffer:
+    {
+        if (portIndex == kPortIndexOutput) {
+            if (mLegacyAdaptiveExperiment) {
+                CLOG_INTERNAL(setPortMode, "Legacy adaptive experiment: "
+                        "not setting port mode to %s(%d) on output",
+                        asString(mode), mode);
+                return StatusFromOMXError(OMX_ErrorUnsupportedIndex);
+            }
+
+            status_t err = enableNativeBuffers_l(
+                    portIndex, OMX_TRUE /*graphic*/, OMX_TRUE);
+            if (err != OK) {
+                return err;
+            }
+        }
+        (void)enableNativeBuffers_l(portIndex, OMX_FALSE /*graphic*/, OMX_FALSE);
+        return storeMetaDataInBuffers_l(portIndex, OMX_TRUE, NULL);
+    }
+
+    case IOMX::kPortModeDynamicNativeHandle:
+    {
+        if (portIndex != kPortIndexInput) {
+            CLOG_ERROR(setPortMode, BAD_VALUE,
+                    "%s(%d) mode is only supported on input port", asString(mode), mode);
+            return BAD_VALUE;
+        }
+        (void)enableNativeBuffers_l(portIndex, OMX_TRUE /*graphic*/, OMX_FALSE);
+        (void)enableNativeBuffers_l(portIndex, OMX_FALSE /*graphic*/, OMX_FALSE);
+
+        MetadataBufferType metaType = kMetadataBufferTypeNativeHandleSource;
+        return storeMetaDataInBuffers_l(portIndex, OMX_TRUE, &metaType);
+    }
+
+    case IOMX::kPortModePresetSecureBuffer:
+    {
+        // Allow on both input and output.
+        (void)storeMetaDataInBuffers_l(portIndex, OMX_FALSE, NULL);
+        (void)enableNativeBuffers_l(portIndex, OMX_TRUE /*graphic*/, OMX_FALSE);
+        return enableNativeBuffers_l(portIndex, OMX_FALSE /*graphic*/, OMX_TRUE);
+    }
+
+    case IOMX::kPortModePresetANWBuffer:
+    {
+        if (portIndex != kPortIndexOutput) {
+            CLOG_ERROR(setPortMode, BAD_VALUE,
+                    "%s(%d) mode is only supported on output port", asString(mode), mode);
+            return BAD_VALUE;
+        }
+
+        // Check if we're simulating legacy mode with metadata mode,
+        // if so, enable metadata mode.
+        if (mLegacyAdaptiveExperiment) {
+            if (storeMetaDataInBuffers_l(portIndex, OMX_TRUE, NULL) == OK) {
+                CLOG_INTERNAL(setPortMode, "Legacy adaptive experiment: "
+                        "metdata mode enabled successfully");
+                return OK;
+            }
+
+            CLOG_INTERNAL(setPortMode, "Legacy adaptive experiment: "
+                    "unable to enable metadata mode on output");
+
+            mLegacyAdaptiveExperiment = false;
+        }
+
+        // Disable secure buffer and enable graphic buffer
+        (void)enableNativeBuffers_l(portIndex, OMX_FALSE /*graphic*/, OMX_FALSE);
+        status_t err = enableNativeBuffers_l(portIndex, OMX_TRUE /*graphic*/, OMX_TRUE);
+        if (err != OK) {
+            return err;
+        }
+
+        // Not running experiment, or metadata is not supported.
+        // Disable metadata mode and use legacy mode.
+        (void)storeMetaDataInBuffers_l(portIndex, OMX_FALSE, NULL);
+        return OK;
+    }
+
+    case IOMX::kPortModePresetByteBuffer:
+    {
+        // Disable secure buffer, native buffer and metadata.
+        (void)enableNativeBuffers_l(portIndex, OMX_TRUE /*graphic*/, OMX_FALSE);
+        (void)enableNativeBuffers_l(portIndex, OMX_FALSE /*graphic*/, OMX_FALSE);
+        (void)storeMetaDataInBuffers_l(portIndex, OMX_FALSE, NULL);
+        return OK;
+    }
+
+    default:
+        break;
+    }
+
+    CLOG_ERROR(setPortMode, BAD_VALUE, "invalid port mode %d", mode);
+    return BAD_VALUE;
 }
 
-status_t OMXNodeInstance::enableNativeBuffers(
+status_t OMXNodeInstance::enableNativeBuffers_l(
         OMX_U32 portIndex, OMX_BOOL graphic, OMX_BOOL enable) {
     if (portIndex >= NELEM(mSecureBufferType)) {
         ALOGE("b/31385713, portIndex(%u)", portIndex);
@@ -536,7 +779,6 @@
         return BAD_VALUE;
     }
 
-    Mutex::Autolock autoLock(mLock);
     CLOG_CONFIG(enableNativeBuffers, "%s:%u%s, %d", portString(portIndex), portIndex,
                 graphic ? ", graphic" : "", enable);
     OMX_STRING name = const_cast<OMX_STRING>(
@@ -568,9 +810,7 @@
         if (!graphic) {
             // Extension not supported, check for manual override with system property
             // This is a temporary workaround until partners support the OMX extension
-            char value[PROPERTY_VALUE_MAX];
-            if (property_get("media.mediadrmservice.enable", value, NULL)
-                && (!strcmp("1", value) || !strcasecmp("true", value))) {
+            if (property_get_bool("media.mediadrmservice.enable", false)) {
                 CLOG_CONFIG(enableNativeBuffers, "system property override: using native-handles");
                 mSecureBufferType[portIndex] = kSecureBufferTypeNativeHandle;
             } else if (mSecureBufferType[portIndex] == kSecureBufferTypeUnknown) {
@@ -613,13 +853,6 @@
     return OK;
 }
 
-status_t OMXNodeInstance::storeMetaDataInBuffers(
-        OMX_U32 portIndex, OMX_BOOL enable, MetadataBufferType *type) {
-    Mutex::Autolock autolock(mLock);
-    CLOG_CONFIG(storeMetaDataInBuffers, "%s:%u en:%d", portString(portIndex), portIndex, enable);
-    return storeMetaDataInBuffers_l(portIndex, enable, type);
-}
-
 status_t OMXNodeInstance::storeMetaDataInBuffers_l(
         OMX_U32 portIndex, OMX_BOOL enable, MetadataBufferType *type) {
     if (mSailed) {
@@ -710,6 +943,12 @@
     CLOG_CONFIG(prepareForAdaptivePlayback, "%s:%u en=%d max=%ux%u",
             portString(portIndex), portIndex, enable, maxFrameWidth, maxFrameHeight);
 
+    if (mLegacyAdaptiveExperiment) {
+        CLOG_INTERNAL(prepareForAdaptivePlayback,
+                "Legacy adaptive experiment: reporting success");
+        return OK;
+    }
+
     OMX_INDEXTYPE index;
     OMX_STRING name = const_cast<OMX_STRING>(
             "OMX.google.android.index.prepareForAdaptivePlayback");
@@ -780,48 +1019,137 @@
 }
 
 status_t OMXNodeInstance::useBuffer(
-        OMX_U32 portIndex, const sp<IMemory> &params,
-        OMX::buffer_id *buffer, OMX_U32 allottedSize) {
-    if (params == NULL || buffer == NULL) {
+        OMX_U32 portIndex, const OMXBuffer &omxBuffer, IOMX::buffer_id *buffer) {
+    if (buffer == NULL) {
         ALOGE("b/25884056");
         return BAD_VALUE;
     }
 
-    Mutex::Autolock autoLock(mLock);
-    if (allottedSize > params->size() || portIndex >= NELEM(mNumPortBuffers)) {
+    if (portIndex >= NELEM(mNumPortBuffers)) {
         return BAD_VALUE;
     }
 
-    // metadata buffers are not connected cross process
-    // use a backup buffer instead of the actual buffer
-    BufferMeta *buffer_meta;
-    bool useBackup = mMetadataType[portIndex] != kMetadataBufferTypeInvalid;
-    OMX_U8 *data = static_cast<OMX_U8 *>(params->pointer());
-    // allocate backup buffer
-    if (useBackup) {
-        data = new (std::nothrow) OMX_U8[allottedSize];
-        if (data == NULL) {
-            return NO_MEMORY;
-        }
-        memset(data, 0, allottedSize);
+    Mutex::Autolock autoLock(mLock);
 
-        buffer_meta = new BufferMeta(
-                params, portIndex, false /* copyToOmx */, false /* copyFromOmx */, data);
-    } else {
-        buffer_meta = new BufferMeta(
-                params, portIndex, false /* copyToOmx */, false /* copyFromOmx */, NULL);
+    switch (omxBuffer.mBufferType) {
+        case OMXBuffer::kBufferTypePreset:
+            return useBuffer_l(portIndex, NULL, NULL, buffer);
+
+        case OMXBuffer::kBufferTypeSharedMem:
+            return useBuffer_l(portIndex, omxBuffer.mMem, NULL, buffer);
+
+        case OMXBuffer::kBufferTypeANWBuffer:
+            return useGraphicBuffer_l(portIndex, omxBuffer.mGraphicBuffer, buffer);
+
+        case OMXBuffer::kBufferTypeHidlMemory: {
+                sp<IHidlMemory> hidlMemory = mapMemory(omxBuffer.mHidlMemory);
+                return useBuffer_l(portIndex, NULL, hidlMemory, buffer);
+            }
+        default:
+            break;
     }
 
-    OMX_BUFFERHEADERTYPE *header;
+    return BAD_VALUE;
+}
 
-    OMX_ERRORTYPE err = OMX_UseBuffer(
-            mHandle, &header, portIndex, buffer_meta,
-            allottedSize, data);
+status_t OMXNodeInstance::useBuffer_l(
+        OMX_U32 portIndex, const sp<IMemory> &params,
+        const sp<IHidlMemory> &hParams, IOMX::buffer_id *buffer) {
+    BufferMeta *buffer_meta;
+    OMX_BUFFERHEADERTYPE *header;
+    OMX_ERRORTYPE err = OMX_ErrorNone;
+    bool isMetadata = mMetadataType[portIndex] != kMetadataBufferTypeInvalid;
+
+    size_t paramsSize;
+    void* paramsPointer;
+    if (params != NULL && hParams != NULL) {
+        return BAD_VALUE;
+    }
+    if (params != NULL) {
+        paramsPointer = params->pointer();
+        paramsSize = params->size();
+    } else if (hParams != NULL) {
+        paramsPointer = hParams->getPointer();
+        paramsSize = hParams->getSize();
+    } else {
+        paramsPointer = nullptr;
+    }
+
+    OMX_U32 allottedSize;
+    if (isMetadata) {
+        if (mMetadataType[portIndex] == kMetadataBufferTypeGrallocSource) {
+            allottedSize = sizeof(VideoGrallocMetadata);
+        } else if (mMetadataType[portIndex] == kMetadataBufferTypeANWBuffer) {
+            allottedSize = sizeof(VideoNativeMetadata);
+        } else if (mMetadataType[portIndex] == kMetadataBufferTypeNativeHandleSource) {
+            allottedSize = sizeof(VideoNativeHandleMetadata);
+        } else {
+            return BAD_VALUE;
+        }
+    } else {
+        // NULL params is allowed only in metadata mode.
+        if (paramsPointer == nullptr) {
+            ALOGE("b/25884056");
+            return BAD_VALUE;
+        }
+        allottedSize = paramsSize;
+    }
+
+    bool isOutputGraphicMetadata = (portIndex == kPortIndexOutput) &&
+            (mMetadataType[portIndex] == kMetadataBufferTypeGrallocSource ||
+                    mMetadataType[portIndex] == kMetadataBufferTypeANWBuffer);
+
+    uint32_t requiresAllocateBufferBit =
+        (portIndex == kPortIndexInput)
+            ? kRequiresAllocateBufferOnInputPorts
+            : kRequiresAllocateBufferOnOutputPorts;
+
+    // we use useBuffer for output metadata regardless of quirks
+    if (!isOutputGraphicMetadata && (mQuirks & requiresAllocateBufferBit)) {
+        // metadata buffers are not connected cross process; only copy if not meta.
+        buffer_meta = new BufferMeta(
+                    params, hParams, portIndex, !isMetadata /* copy */, NULL /* data */);
+
+        err = OMX_AllocateBuffer(
+                mHandle, &header, portIndex, buffer_meta, allottedSize);
+
+        if (err != OMX_ErrorNone) {
+            CLOG_ERROR(allocateBuffer, err,
+                    SIMPLE_BUFFER(portIndex, (size_t)allottedSize,
+                            paramsPointer));
+        }
+    } else {
+        OMX_U8 *data = NULL;
+
+        // metadata buffers are not connected cross process
+        // use a backup buffer instead of the actual buffer
+        if (isMetadata) {
+            data = new (std::nothrow) OMX_U8[allottedSize];
+            if (data == NULL) {
+                return NO_MEMORY;
+            }
+            memset(data, 0, allottedSize);
+
+            buffer_meta = new BufferMeta(
+                    params, hParams, portIndex, false /* copy */, data);
+        } else {
+            data = static_cast<OMX_U8 *>(paramsPointer);
+
+            buffer_meta = new BufferMeta(
+                    params, hParams, portIndex, false /* copy */, NULL);
+        }
+
+        err = OMX_UseBuffer(
+                mHandle, &header, portIndex, buffer_meta,
+                allottedSize, data);
+
+        if (err != OMX_ErrorNone) {
+            CLOG_ERROR(useBuffer, err, SIMPLE_BUFFER(
+                    portIndex, (size_t)allottedSize, data));
+        }
+    }
 
     if (err != OMX_ErrorNone) {
-        CLOG_ERROR(useBuffer, err, SIMPLE_BUFFER(
-                portIndex, (size_t)allottedSize, data));
-
         delete buffer_meta;
         buffer_meta = NULL;
 
@@ -836,19 +1164,19 @@
 
     addActiveBuffer(portIndex, *buffer);
 
-    sp<GraphicBufferSource> bufferSource(getGraphicBufferSource());
+    sp<IOMXBufferSource> bufferSource(getBufferSource());
     if (bufferSource != NULL && portIndex == kPortIndexInput) {
-        bufferSource->addCodecBuffer(header);
+        bufferSource->onInputBufferAdded(*buffer);
     }
 
     CLOG_BUFFER(useBuffer, NEW_BUFFER_FMT(
-            *buffer, portIndex, "%u(%zu)@%p", allottedSize, params->size(), params->pointer()));
+            *buffer, portIndex, "%u(%zu)@%p", allottedSize, paramsSize, paramsPointer));
     return OK;
 }
 
 status_t OMXNodeInstance::useGraphicBuffer2_l(
         OMX_U32 portIndex, const sp<GraphicBuffer>& graphicBuffer,
-        OMX::buffer_id *buffer) {
+        IOMX::buffer_id *buffer) {
     if (graphicBuffer == NULL || buffer == NULL) {
         ALOGE("b/25884056");
         return BAD_VALUE;
@@ -902,14 +1230,20 @@
 // XXX: This function is here for backwards compatibility.  Once the OMX
 // implementations have been updated this can be removed and useGraphicBuffer2
 // can be renamed to useGraphicBuffer.
-status_t OMXNodeInstance::useGraphicBuffer(
+status_t OMXNodeInstance::useGraphicBuffer_l(
         OMX_U32 portIndex, const sp<GraphicBuffer>& graphicBuffer,
-        OMX::buffer_id *buffer) {
+        IOMX::buffer_id *buffer) {
     if (graphicBuffer == NULL || buffer == NULL) {
         ALOGE("b/25884056");
         return BAD_VALUE;
     }
-    Mutex::Autolock autoLock(mLock);
+
+    // First, see if we're in metadata mode. We could be running an experiment to simulate
+    // legacy behavior (preallocated buffers) on devices that supports meta.
+    if (mMetadataType[portIndex] != kMetadataBufferTypeInvalid) {
+        return useGraphicBufferWithMetadata_l(
+                portIndex, graphicBuffer, buffer);
+    }
 
     // See if the newer version of the extension is present.
     OMX_INDEXTYPE index;
@@ -966,9 +1300,32 @@
     return OK;
 }
 
+status_t OMXNodeInstance::useGraphicBufferWithMetadata_l(
+        OMX_U32 portIndex, const sp<GraphicBuffer> &graphicBuffer,
+        IOMX::buffer_id *buffer) {
+    if (portIndex != kPortIndexOutput) {
+        return BAD_VALUE;
+    }
+
+    if (mMetadataType[portIndex] != kMetadataBufferTypeGrallocSource &&
+            mMetadataType[portIndex] != kMetadataBufferTypeANWBuffer) {
+        return BAD_VALUE;
+    }
+
+    status_t err = useBuffer_l(portIndex, NULL, NULL, buffer);
+    if (err != OK) {
+        return err;
+    }
+
+    OMX_BUFFERHEADERTYPE *header = findBufferHeader(*buffer, portIndex);
+
+    return updateGraphicBufferInMeta_l(portIndex, graphicBuffer, *buffer, header);
+
+}
+
 status_t OMXNodeInstance::updateGraphicBufferInMeta_l(
         OMX_U32 portIndex, const sp<GraphicBuffer>& graphicBuffer,
-        OMX::buffer_id buffer, OMX_BUFFERHEADERTYPE *header, bool updateCodecBuffer) {
+        IOMX::buffer_id buffer, OMX_BUFFERHEADERTYPE *header) {
     // No need to check |graphicBuffer| since NULL is valid for it as below.
     if (header == NULL) {
         ALOGE("b/25884056");
@@ -980,14 +1337,9 @@
     }
 
     BufferMeta *bufferMeta = (BufferMeta *)(header->pAppPrivate);
-    sp<ABuffer> data = bufferMeta->getBuffer(
-            header, !updateCodecBuffer /* backup */, false /* limit */);
+    sp<ABuffer> data = bufferMeta->getBuffer(header, false /* limit */);
     bufferMeta->setGraphicBuffer(graphicBuffer);
     MetadataBufferType metaType = mMetadataType[portIndex];
-    // we use gralloc source only in the codec buffers
-    if (metaType == kMetadataBufferTypeGrallocSource && !updateCodecBuffer) {
-        metaType = kMetadataBufferTypeANWBuffer;
-    }
     if (metaType == kMetadataBufferTypeGrallocSource
             && data->capacity() >= sizeof(VideoGrallocMetadata)) {
         VideoGrallocMetadata &metadata = *(VideoGrallocMetadata *)(data->data());
@@ -1011,21 +1363,9 @@
     return OK;
 }
 
-status_t OMXNodeInstance::updateGraphicBufferInMeta(
-        OMX_U32 portIndex, const sp<GraphicBuffer>& graphicBuffer,
-        OMX::buffer_id buffer) {
-    Mutex::Autolock autoLock(mLock);
-    OMX_BUFFERHEADERTYPE *header = findBufferHeader(buffer, portIndex);
-    // update backup buffer for input, codec buffer for output
-    return updateGraphicBufferInMeta_l(
-            portIndex, graphicBuffer, buffer, header,
-            true /* updateCodecBuffer */);
-}
-
-status_t OMXNodeInstance::updateNativeHandleInMeta(
-        OMX_U32 portIndex, const sp<NativeHandle>& nativeHandle, OMX::buffer_id buffer) {
-    Mutex::Autolock autoLock(mLock);
-    OMX_BUFFERHEADERTYPE *header = findBufferHeader(buffer, portIndex);
+status_t OMXNodeInstance::updateNativeHandleInMeta_l(
+        OMX_U32 portIndex, const sp<NativeHandle>& nativeHandle,
+        IOMX::buffer_id buffer, OMX_BUFFERHEADERTYPE *header) {
     // No need to check |nativeHandle| since NULL is valid for it as below.
     if (header == NULL) {
         ALOGE("b/25884056");
@@ -1037,9 +1377,7 @@
     }
 
     BufferMeta *bufferMeta = (BufferMeta *)(header->pAppPrivate);
-    // update backup buffer
-    sp<ABuffer> data = bufferMeta->getBuffer(
-            header, false /* backup */, false /* limit */);
+    sp<ABuffer> data = bufferMeta->getBuffer(header, false /* limit */);
     bufferMeta->setNativeHandle(nativeHandle);
     if (mMetadataType[portIndex] == kMetadataBufferTypeNativeHandleSource
             && data->capacity() >= sizeof(VideoNativeHandleMetadata)) {
@@ -1059,32 +1397,23 @@
     return OK;
 }
 
-status_t OMXNodeInstance::createGraphicBufferSource(
-        OMX_U32 portIndex, const sp<IGraphicBufferConsumer> &bufferConsumer, MetadataBufferType *type) {
+status_t OMXNodeInstance::setInputSurface(
+        const sp<IOMXBufferSource> &bufferSource) {
+    Mutex::Autolock autolock(mLock);
+
     status_t err;
 
     // only allow graphic source on input port, when there are no allocated buffers yet
-    if (portIndex != kPortIndexInput) {
-        android_errorWriteLog(0x534e4554, "29422020");
-        return BAD_VALUE;
-    } else if (mNumPortBuffers[portIndex] > 0) {
+    if (mNumPortBuffers[kPortIndexInput] > 0) {
         android_errorWriteLog(0x534e4554, "29422020");
         return INVALID_OPERATION;
     }
 
-    const sp<GraphicBufferSource> surfaceCheck = getGraphicBufferSource();
-    if (surfaceCheck != NULL) {
-        if (portIndex < NELEM(mMetadataType) && type != NULL) {
-            *type = mMetadataType[portIndex];
-        }
+    if (getBufferSource() != NULL) {
         return ALREADY_EXISTS;
     }
 
-    // Input buffers will hold meta-data (ANativeWindowBuffer references).
-    if (type != NULL) {
-        *type = kMetadataBufferTypeANWBuffer;
-    }
-    err = storeMetaDataInBuffers_l(portIndex, OMX_TRUE, type);
+    err = storeMetaDataInBuffers_l(kPortIndexInput, OMX_TRUE, NULL);
     if (err != OK) {
         return err;
     }
@@ -1093,13 +1422,13 @@
     // codec was configured.
     OMX_PARAM_PORTDEFINITIONTYPE def;
     InitOMXParams(&def);
-    def.nPortIndex = portIndex;
+    def.nPortIndex = kPortIndexInput;
     OMX_ERRORTYPE oerr = OMX_GetParameter(
             mHandle, OMX_IndexParamPortDefinition, &def);
     if (oerr != OMX_ErrorNone) {
         OMX_INDEXTYPE index = OMX_IndexParamPortDefinition;
-        CLOG_ERROR(getParameter, oerr, "%s(%#x): %s:%u",
-                asString(index), index, portString(portIndex), portIndex);
+        CLOG_ERROR(getParameter, oerr, "%s(%#x): %s:%u", asString(index),
+                index, portString(kPortIndexInput), kPortIndexInput);
         return UNKNOWN_ERROR;
     }
 
@@ -1110,105 +1439,20 @@
         return INVALID_OPERATION;
     }
 
-    uint32_t usageBits;
-    oerr = OMX_GetParameter(
-            mHandle, (OMX_INDEXTYPE)OMX_IndexParamConsumerUsageBits, &usageBits);
-    if (oerr != OMX_ErrorNone) {
-        usageBits = 0;
-    }
-
-    sp<GraphicBufferSource> bufferSource = new GraphicBufferSource(this,
-            def.format.video.nFrameWidth,
-            def.format.video.nFrameHeight,
-            def.nBufferCountActual,
-            usageBits,
-            bufferConsumer);
-
-    if ((err = bufferSource->initCheck()) != OK) {
-        return err;
-    }
-    setGraphicBufferSource(bufferSource);
-
-    return OK;
-}
-
-status_t OMXNodeInstance::createInputSurface(
-        OMX_U32 portIndex, android_dataspace dataSpace,
-        sp<IGraphicBufferProducer> *bufferProducer, MetadataBufferType *type) {
-    if (bufferProducer == NULL) {
-        ALOGE("b/25884056");
+    if (def.format.video.nFrameWidth == 0
+            || def.format.video.nFrameHeight == 0) {
+        ALOGE("Invalid video dimension %ux%u",
+                def.format.video.nFrameWidth,
+                def.format.video.nFrameHeight);
         return BAD_VALUE;
     }
 
-    Mutex::Autolock autolock(mLock);
-    status_t err = createGraphicBufferSource(portIndex, NULL /* bufferConsumer */, type);
-
-    if (err != OK) {
-        return err;
-    }
-
-    mGraphicBufferSource->setDefaultDataSpace(dataSpace);
-
-    *bufferProducer = mGraphicBufferSource->getIGraphicBufferProducer();
+    setBufferSource(bufferSource);
     return OK;
 }
 
-//static
-status_t OMXNodeInstance::createPersistentInputSurface(
-        sp<IGraphicBufferProducer> *bufferProducer,
-        sp<IGraphicBufferConsumer> *bufferConsumer) {
-    if (bufferProducer == NULL || bufferConsumer == NULL) {
-        ALOGE("b/25884056");
-        return BAD_VALUE;
-    }
-    String8 name("GraphicBufferSource");
-
-    sp<IGraphicBufferProducer> producer;
-    sp<IGraphicBufferConsumer> consumer;
-    BufferQueue::createBufferQueue(&producer, &consumer);
-    consumer->setConsumerName(name);
-    consumer->setConsumerUsageBits(GRALLOC_USAGE_HW_VIDEO_ENCODER);
-
-    sp<BufferQueue::ProxyConsumerListener> proxy =
-        new BufferQueue::ProxyConsumerListener(NULL);
-    status_t err = consumer->consumerConnect(proxy, false);
-    if (err != NO_ERROR) {
-        ALOGE("Error connecting to BufferQueue: %s (%d)",
-                strerror(-err), err);
-        return err;
-    }
-
-    *bufferProducer = producer;
-    *bufferConsumer = consumer;
-
-    return OK;
-}
-
-status_t OMXNodeInstance::setInputSurface(
-        OMX_U32 portIndex, const sp<IGraphicBufferConsumer> &bufferConsumer,
-        MetadataBufferType *type) {
-    Mutex::Autolock autolock(mLock);
-    return createGraphicBufferSource(portIndex, bufferConsumer, type);
-}
-
-void OMXNodeInstance::signalEvent(OMX_EVENTTYPE event, OMX_U32 arg1, OMX_U32 arg2) {
-    mOwner->OnEvent(mNodeID, event, arg1, arg2, NULL);
-}
-
-status_t OMXNodeInstance::signalEndOfInputStream() {
-    // For non-Surface input, the MediaCodec should convert the call to a
-    // pair of requests (dequeue input buffer, queue input buffer with EOS
-    // flag set).  Seems easier than doing the equivalent from here.
-    sp<GraphicBufferSource> bufferSource(getGraphicBufferSource());
-    if (bufferSource == NULL) {
-        CLOGW("signalEndOfInputStream can only be used with Surface input");
-        return INVALID_OPERATION;
-    }
-    return bufferSource->signalEndOfInputStream();
-}
-
 status_t OMXNodeInstance::allocateSecureBuffer(
-        OMX_U32 portIndex, size_t size, OMX::buffer_id *buffer,
+        OMX_U32 portIndex, size_t size, IOMX::buffer_id *buffer,
         void **buffer_data, sp<NativeHandle> *native_handle) {
     if (buffer == NULL || buffer_data == NULL || native_handle == NULL) {
         ALOGE("b/25884056");
@@ -1223,7 +1467,7 @@
 
     Mutex::Autolock autoLock(mLock);
 
-    BufferMeta *buffer_meta = new BufferMeta(size, portIndex);
+    BufferMeta *buffer_meta = new BufferMeta(portIndex);
 
     OMX_BUFFERHEADERTYPE *header;
 
@@ -1254,9 +1498,9 @@
 
     addActiveBuffer(portIndex, *buffer);
 
-    sp<GraphicBufferSource> bufferSource(getGraphicBufferSource());
+    sp<IOMXBufferSource> bufferSource(getBufferSource());
     if (bufferSource != NULL && portIndex == kPortIndexInput) {
-        bufferSource->addCodecBuffer(header);
+        bufferSource->onInputBufferAdded(*buffer);
     }
     CLOG_BUFFER(allocateSecureBuffer, NEW_BUFFER_FMT(
             *buffer, portIndex, "%zu@%p:%p", size, *buffer_data,
@@ -1265,62 +1509,8 @@
     return OK;
 }
 
-status_t OMXNodeInstance::allocateBufferWithBackup(
-        OMX_U32 portIndex, const sp<IMemory> &params,
-        OMX::buffer_id *buffer, OMX_U32 allottedSize) {
-    if (params == NULL || buffer == NULL) {
-        ALOGE("b/25884056");
-        return BAD_VALUE;
-    }
-
-    Mutex::Autolock autoLock(mLock);
-    if (allottedSize > params->size() || portIndex >= NELEM(mNumPortBuffers)) {
-        return BAD_VALUE;
-    }
-
-    // metadata buffers are not connected cross process; only copy if not meta
-    bool copy = mMetadataType[portIndex] == kMetadataBufferTypeInvalid;
-
-    BufferMeta *buffer_meta = new BufferMeta(
-            params, portIndex,
-            (portIndex == kPortIndexInput) && copy /* copyToOmx */,
-            (portIndex == kPortIndexOutput) && copy /* copyFromOmx */,
-            NULL /* data */);
-
-    OMX_BUFFERHEADERTYPE *header;
-
-    OMX_ERRORTYPE err = OMX_AllocateBuffer(
-            mHandle, &header, portIndex, buffer_meta, allottedSize);
-    if (err != OMX_ErrorNone) {
-        CLOG_ERROR(allocateBufferWithBackup, err,
-                SIMPLE_BUFFER(portIndex, (size_t)allottedSize, params->pointer()));
-        delete buffer_meta;
-        buffer_meta = NULL;
-
-        *buffer = 0;
-
-        return StatusFromOMXError(err);
-    }
-
-    CHECK_EQ(header->pAppPrivate, buffer_meta);
-
-    *buffer = makeBufferID(header);
-
-    addActiveBuffer(portIndex, *buffer);
-
-    sp<GraphicBufferSource> bufferSource(getGraphicBufferSource());
-    if (bufferSource != NULL && portIndex == kPortIndexInput) {
-        bufferSource->addCodecBuffer(header);
-    }
-
-    CLOG_BUFFER(allocateBufferWithBackup, NEW_BUFFER_FMT(*buffer, portIndex, "%zu@%p :> %u@%p",
-            params->size(), params->pointer(), allottedSize, header->pBuffer));
-
-    return OK;
-}
-
 status_t OMXNodeInstance::freeBuffer(
-        OMX_U32 portIndex, OMX::buffer_id buffer) {
+        OMX_U32 portIndex, IOMX::buffer_id buffer) {
     Mutex::Autolock autoLock(mLock);
     CLOG_BUFFER(freeBuffer, "%s:%u %#x", portString(portIndex), portIndex, buffer);
 
@@ -1343,7 +1533,8 @@
     return StatusFromOMXError(err);
 }
 
-status_t OMXNodeInstance::fillBuffer(OMX::buffer_id buffer, int fenceFd) {
+status_t OMXNodeInstance::fillBuffer(
+        IOMX::buffer_id buffer, const OMXBuffer &omxBuffer, int fenceFd) {
     Mutex::Autolock autoLock(mLock);
 
     OMX_BUFFERHEADERTYPE *header = findBufferHeader(buffer, kPortIndexOutput);
@@ -1351,6 +1542,20 @@
         ALOGE("b/25884056");
         return BAD_VALUE;
     }
+
+    if (omxBuffer.mBufferType == OMXBuffer::kBufferTypeANWBuffer) {
+        status_t err = updateGraphicBufferInMeta_l(
+                kPortIndexOutput, omxBuffer.mGraphicBuffer, buffer, header);
+
+        if (err != OK) {
+            CLOG_ERROR(fillBuffer, err, FULL_BUFFER(
+                    (intptr_t)header->pBuffer, header, fenceFd));
+            return err;
+        }
+    } else if (omxBuffer.mBufferType != OMXBuffer::kBufferTypePreset) {
+        return BAD_VALUE;
+    }
+
     header->nFilledLen = 0;
     header->nOffset = 0;
     header->nFlags = 0;
@@ -1378,13 +1583,38 @@
 }
 
 status_t OMXNodeInstance::emptyBuffer(
-        OMX::buffer_id buffer,
-        OMX_U32 rangeOffset, OMX_U32 rangeLength,
+        buffer_id buffer, const OMXBuffer &omxBuffer,
         OMX_U32 flags, OMX_TICKS timestamp, int fenceFd) {
     Mutex::Autolock autoLock(mLock);
 
+    switch (omxBuffer.mBufferType) {
+    case OMXBuffer::kBufferTypePreset:
+        return emptyBuffer_l(
+                buffer, omxBuffer.mRangeOffset, omxBuffer.mRangeLength,
+                flags, timestamp, fenceFd);
+
+    case OMXBuffer::kBufferTypeANWBuffer:
+        return emptyGraphicBuffer_l(
+                buffer, omxBuffer.mGraphicBuffer, flags, timestamp, fenceFd);
+
+    case OMXBuffer::kBufferTypeNativeHandle:
+        return emptyNativeHandleBuffer_l(
+                buffer, omxBuffer.mNativeHandle, flags, timestamp, fenceFd);
+
+    default:
+        break;
+    }
+
+    return BAD_VALUE;
+}
+
+status_t OMXNodeInstance::emptyBuffer_l(
+        IOMX::buffer_id buffer,
+        OMX_U32 rangeOffset, OMX_U32 rangeLength,
+        OMX_U32 flags, OMX_TICKS timestamp, int fenceFd) {
+
     // no emptybuffer if using input surface
-    if (getGraphicBufferSource() != NULL) {
+    if (getBufferSource() != NULL) {
         android_errorWriteLog(0x534e4554, "29422020");
         return INVALID_OPERATION;
     }
@@ -1530,25 +1760,25 @@
 }
 
 // like emptyBuffer, but the data is already in header->pBuffer
-status_t OMXNodeInstance::emptyGraphicBuffer(
-        OMX_BUFFERHEADERTYPE *header, const sp<GraphicBuffer> &graphicBuffer,
+status_t OMXNodeInstance::emptyGraphicBuffer_l(
+        IOMX::buffer_id buffer, const sp<GraphicBuffer> &graphicBuffer,
         OMX_U32 flags, OMX_TICKS timestamp, int fenceFd) {
+    OMX_BUFFERHEADERTYPE *header = findBufferHeader(buffer, kPortIndexInput);
     if (header == NULL) {
         ALOGE("b/25884056");
         return BAD_VALUE;
     }
 
-    Mutex::Autolock autoLock(mLock);
-    OMX::buffer_id buffer = findBufferID(header);
     status_t err = updateGraphicBufferInMeta_l(
-            kPortIndexInput, graphicBuffer, buffer, header,
-            true /* updateCodecBuffer */);
+            kPortIndexInput, graphicBuffer, buffer, header);
     if (err != OK) {
         CLOG_ERROR(emptyGraphicBuffer, err, FULL_BUFFER(
                 (intptr_t)header->pBuffer, header, fenceFd));
         return err;
     }
 
+    int64_t codecTimeUs = getCodecTimestamp(timestamp);
+
     header->nOffset = 0;
     if (graphicBuffer == NULL) {
         header->nFilledLen = 0;
@@ -1557,9 +1787,100 @@
     } else {
         header->nFilledLen = sizeof(VideoNativeMetadata);
     }
+    return emptyBuffer_l(header, flags, codecTimeUs, (intptr_t)header->pBuffer, fenceFd);
+}
+
+status_t OMXNodeInstance::setMaxPtsGapUs(const void *params, size_t size) {
+    if (params == NULL || size != sizeof(OMX_PARAM_U32TYPE)) {
+        CLOG_ERROR(setMaxPtsGapUs, BAD_VALUE, "invalid params (%p,%zu)", params, size);
+        return BAD_VALUE;
+    }
+
+    mMaxTimestampGapUs = (int64_t)((OMX_PARAM_U32TYPE*)params)->nU32;
+
+    return OK;
+}
+
+int64_t OMXNodeInstance::getCodecTimestamp(OMX_TICKS timestamp) {
+    int64_t originalTimeUs = timestamp;
+
+    if (mMaxTimestampGapUs > 0ll) {
+        /* Cap timestamp gap between adjacent frames to specified max
+         *
+         * In the scenario of cast mirroring, encoding could be suspended for
+         * prolonged periods. Limiting the pts gap to workaround the problem
+         * where encoder's rate control logic produces huge frames after a
+         * long period of suspension.
+         */
+        if (mPrevOriginalTimeUs >= 0ll) {
+            int64_t timestampGapUs = originalTimeUs - mPrevOriginalTimeUs;
+            timestamp = (timestampGapUs < mMaxTimestampGapUs ?
+                timestampGapUs : mMaxTimestampGapUs) + mPrevModifiedTimeUs;
+        }
+        ALOGV("IN  timestamp: %lld -> %lld",
+            static_cast<long long>(originalTimeUs),
+            static_cast<long long>(timestamp));
+    }
+
+    mPrevOriginalTimeUs = originalTimeUs;
+    mPrevModifiedTimeUs = timestamp;
+
+    if (mMaxTimestampGapUs > 0ll && !mRestorePtsFailed) {
+        mOriginalTimeUs.add(timestamp, originalTimeUs);
+    }
+
+    return timestamp;
+}
+
+status_t OMXNodeInstance::emptyNativeHandleBuffer_l(
+        IOMX::buffer_id buffer, const sp<NativeHandle> &nativeHandle,
+        OMX_U32 flags, OMX_TICKS timestamp, int fenceFd) {
+    OMX_BUFFERHEADERTYPE *header = findBufferHeader(buffer, kPortIndexInput);
+    if (header == NULL) {
+        ALOGE("b/25884056");
+        return BAD_VALUE;
+    }
+
+    status_t err = updateNativeHandleInMeta_l(
+            kPortIndexInput, nativeHandle, buffer, header);
+    if (err != OK) {
+        CLOG_ERROR(emptyNativeHandleBuffer_l, err, FULL_BUFFER(
+                (intptr_t)header->pBuffer, header, fenceFd));
+        return err;
+    }
+
+    header->nOffset = 0;
+    header->nFilledLen = (nativeHandle == NULL) ? 0 : sizeof(VideoNativeMetadata);
+
     return emptyBuffer_l(header, flags, timestamp, (intptr_t)header->pBuffer, fenceFd);
 }
 
+void OMXNodeInstance::codecBufferFilled(omx_message &msg) {
+    Mutex::Autolock autoLock(mBufferIDLock);
+
+    if (mMaxTimestampGapUs <= 0ll || mRestorePtsFailed) {
+        return;
+    }
+
+    OMX_U32 &flags = msg.u.extended_buffer_data.flags;
+    OMX_TICKS &timestamp = msg.u.extended_buffer_data.timestamp;
+
+    if (!(flags & OMX_BUFFERFLAG_CODECCONFIG)) {
+        ssize_t index = mOriginalTimeUs.indexOfKey(timestamp);
+        if (index >= 0) {
+            ALOGV("OUT timestamp: %lld -> %lld",
+                    static_cast<long long>(timestamp),
+                    static_cast<long long>(mOriginalTimeUs[index]));
+            timestamp = mOriginalTimeUs[index];
+            mOriginalTimeUs.removeItemsAt(index);
+        } else {
+            // giving up the effort as encoder doesn't appear to preserve pts
+            ALOGW("giving up limiting timestamp gap (pts = %lld)", timestamp);
+            mRestorePtsFailed = true;
+        }
+    }
+}
+
 status_t OMXNodeInstance::getExtensionIndex(
         const char *parameterName, OMX_INDEXTYPE *index) {
     Mutex::Autolock autoLock(mLock);
@@ -1570,133 +1891,22 @@
     return StatusFromOMXError(err);
 }
 
-inline static const char *asString(IOMX::InternalOptionType i, const char *def = "??") {
-    switch (i) {
-        case IOMX::INTERNAL_OPTION_SUSPEND:           return "SUSPEND";
-        case IOMX::INTERNAL_OPTION_REPEAT_PREVIOUS_FRAME_DELAY:
-            return "REPEAT_PREVIOUS_FRAME_DELAY";
-        case IOMX::INTERNAL_OPTION_MAX_TIMESTAMP_GAP: return "MAX_TIMESTAMP_GAP";
-        case IOMX::INTERNAL_OPTION_MAX_FPS:           return "MAX_FPS";
-        case IOMX::INTERNAL_OPTION_START_TIME:        return "START_TIME";
-        case IOMX::INTERNAL_OPTION_TIME_LAPSE:        return "TIME_LAPSE";
-        case IOMX::INTERNAL_OPTION_TIME_OFFSET:       return "TIME_OFFSET";
-        default:                                      return def;
-    }
+status_t OMXNodeInstance::dispatchMessage(const omx_message &msg) {
+    mDispatcher->post(msg, true /*realTime*/);
+    return OK;
 }
 
-template<typename T>
-static bool getInternalOption(
-        const void *data, size_t size, T *out) {
-    if (size != sizeof(T)) {
-        return false;
+status_t OMXNodeInstance::setQuirks(OMX_U32 quirks) {
+    if (quirks & ~kQuirksMask) {
+        return BAD_VALUE;
     }
-    *out = *(T*)data;
-    return true;
-}
 
-status_t OMXNodeInstance::setInternalOption(
-        OMX_U32 portIndex,
-        IOMX::InternalOptionType type,
-        const void *data,
-        size_t size) {
-    CLOG_CONFIG(setInternalOption, "%s(%d): %s:%u %zu@%p",
-            asString(type), type, portString(portIndex), portIndex, size, data);
-    switch (type) {
-        case IOMX::INTERNAL_OPTION_SUSPEND:
-        case IOMX::INTERNAL_OPTION_REPEAT_PREVIOUS_FRAME_DELAY:
-        case IOMX::INTERNAL_OPTION_MAX_TIMESTAMP_GAP:
-        case IOMX::INTERNAL_OPTION_MAX_FPS:
-        case IOMX::INTERNAL_OPTION_START_TIME:
-        case IOMX::INTERNAL_OPTION_TIME_LAPSE:
-        case IOMX::INTERNAL_OPTION_TIME_OFFSET:
-        case IOMX::INTERNAL_OPTION_COLOR_ASPECTS:
-        {
-            const sp<GraphicBufferSource> &bufferSource =
-                getGraphicBufferSource();
+    mQuirks = quirks;
 
-            if (bufferSource == NULL || portIndex != kPortIndexInput) {
-                CLOGW("setInternalOption is only for Surface input");
-                return ERROR_UNSUPPORTED;
-            }
-
-            if (type == IOMX::INTERNAL_OPTION_SUSPEND) {
-                bool suspend;
-                if (!getInternalOption(data, size, &suspend)) {
-                    return INVALID_OPERATION;
-                }
-
-                CLOG_CONFIG(setInternalOption, "suspend=%d", suspend);
-                bufferSource->suspend(suspend);
-            } else if (type == IOMX::INTERNAL_OPTION_REPEAT_PREVIOUS_FRAME_DELAY) {
-                int64_t delayUs;
-                if (!getInternalOption(data, size, &delayUs)) {
-                    return INVALID_OPERATION;
-                }
-
-                CLOG_CONFIG(setInternalOption, "delayUs=%lld", (long long)delayUs);
-                return bufferSource->setRepeatPreviousFrameDelayUs(delayUs);
-            } else if (type == IOMX::INTERNAL_OPTION_TIME_OFFSET) {
-                int64_t timeOffsetUs;
-                if (!getInternalOption(data, size, &timeOffsetUs)) {
-                    return INVALID_OPERATION;
-                }
-                CLOG_CONFIG(setInternalOption, "bufferOffsetUs=%lld", (long long)timeOffsetUs);
-                return bufferSource->setInputBufferTimeOffset(timeOffsetUs);
-            } else if (type == IOMX::INTERNAL_OPTION_MAX_TIMESTAMP_GAP) {
-                int64_t maxGapUs;
-                if (!getInternalOption(data, size, &maxGapUs)) {
-                    return INVALID_OPERATION;
-                }
-
-                CLOG_CONFIG(setInternalOption, "gapUs=%lld", (long long)maxGapUs);
-                return bufferSource->setMaxTimestampGapUs(maxGapUs);
-            } else if (type == IOMX::INTERNAL_OPTION_MAX_FPS) {
-                float maxFps;
-                if (!getInternalOption(data, size, &maxFps)) {
-                    return INVALID_OPERATION;
-                }
-
-                CLOG_CONFIG(setInternalOption, "maxFps=%f", maxFps);
-                return bufferSource->setMaxFps(maxFps);
-            } else if (type == IOMX::INTERNAL_OPTION_START_TIME) {
-                int64_t skipFramesBeforeUs;
-                if (!getInternalOption(data, size, &skipFramesBeforeUs)) {
-                    return INVALID_OPERATION;
-                }
-
-                CLOG_CONFIG(setInternalOption, "beforeUs=%lld", (long long)skipFramesBeforeUs);
-                bufferSource->setSkipFramesBeforeUs(skipFramesBeforeUs);
-            } else if (type == IOMX::INTERNAL_OPTION_TIME_LAPSE) {
-                GraphicBufferSource::TimeLapseConfig config;
-                if (!getInternalOption(data, size, &config)) {
-                    return INVALID_OPERATION;
-                }
-
-                CLOG_CONFIG(setInternalOption, "perFrameUs=%lld perCaptureUs=%lld",
-                        (long long)config.mTimePerFrameUs, (long long)config.mTimePerCaptureUs);
-
-                return bufferSource->setTimeLapseConfig(config);
-            } else if (type == IOMX::INTERNAL_OPTION_COLOR_ASPECTS) {
-                ColorAspects aspects;
-                if (!getInternalOption(data, size, &aspects)) {
-                    return INVALID_OPERATION;
-                }
-
-                CLOG_CONFIG(setInternalOption, "setting color aspects");
-                bufferSource->setColorAspects(aspects);
-            }
-
-            return OK;
-        }
-
-        default:
-            return ERROR_UNSUPPORTED;
-    }
+    return OK;
 }
 
 bool OMXNodeInstance::handleMessage(omx_message &msg) {
-    const sp<GraphicBufferSource>& bufferSource(getGraphicBufferSource());
-
     if (msg.type == omx_message::FILL_BUFFER_DONE) {
         OMX_BUFFERHEADERTYPE *buffer =
             findBufferHeader(msg.u.extended_buffer_data.buffer, kPortIndexOutput);
@@ -1726,12 +1936,8 @@
         }
         buffer_meta->CopyFromOMX(buffer);
 
-        if (bufferSource != NULL) {
-            // fix up the buffer info (especially timestamp) if needed
-            bufferSource->codecBufferFilled(buffer);
-
-            msg.u.extended_buffer_data.timestamp = buffer->nTimeStamp;
-        }
+        // fix up the buffer info (especially timestamp) if needed
+        codecBufferFilled(msg);
     } else if (msg.type == omx_message::EMPTY_BUFFER_DONE) {
         OMX_BUFFERHEADERTYPE *buffer =
             findBufferHeader(msg.u.buffer_data.buffer, kPortIndexInput);
@@ -1747,20 +1953,100 @@
                     EBD, WITH_STATS(EMPTY_BUFFER(msg.u.buffer_data.buffer, buffer, msg.fenceFd)));
         }
 
+        const sp<IOMXBufferSource> bufferSource(getBufferSource());
+
         if (bufferSource != NULL) {
-            // This is one of the buffers used exclusively by
-            // GraphicBufferSource.
+            // This is one of the buffers used exclusively by IOMXBufferSource.
             // Don't dispatch a message back to ACodec, since it doesn't
             // know that anyone asked to have the buffer emptied and will
             // be very confused.
-            bufferSource->codecBufferEmptied(buffer, msg.fenceFd);
+            bufferSource->onInputBufferEmptied(
+                    msg.u.buffer_data.buffer, OMXFenceParcelable(msg.fenceFd));
             return true;
         }
+    } else if (msg.type == omx_message::EVENT &&
+            msg.u.event_data.event == OMX_EventDataSpaceChanged) {
+        handleDataSpaceChanged(msg);
     }
 
     return false;
 }
 
+bool OMXNodeInstance::handleDataSpaceChanged(omx_message &msg) {
+    android_dataspace dataSpace = (android_dataspace) msg.u.event_data.data1;
+    android_dataspace origDataSpace = dataSpace;
+
+    if (!ColorUtils::convertDataSpaceToV0(dataSpace)) {
+        // Do not process the data space change, don't notify client either
+        return true;
+    }
+
+    android_pixel_format pixelFormat = (android_pixel_format)msg.u.event_data.data3;
+
+    ColorAspects requestedAspects = ColorUtils::unpackToColorAspects(msg.u.event_data.data2);
+    ColorAspects aspects = requestedAspects; // initially requested aspects
+
+    // request color aspects to encode
+    OMX_INDEXTYPE index;
+    status_t err = getExtensionIndex(
+            "OMX.google.android.index.describeColorAspects", &index);
+    if (err == OK) {
+        // V0 dataspace
+        DescribeColorAspectsParams params;
+        InitOMXParams(&params);
+        params.nPortIndex = kPortIndexInput;
+        params.nDataSpace = origDataSpace;
+        params.nPixelFormat = pixelFormat;
+        params.bDataSpaceChanged = OMX_TRUE;
+        params.sAspects = requestedAspects;
+
+        err = getConfig(index, &params, sizeof(params));
+        if (err == OK) {
+            aspects = params.sAspects;
+            ALOGD("Codec resolved it to (R:%d(%s), P:%d(%s), M:%d(%s), T:%d(%s)) err=%d(%s)",
+                    params.sAspects.mRange, asString(params.sAspects.mRange),
+                    params.sAspects.mPrimaries, asString(params.sAspects.mPrimaries),
+                    params.sAspects.mMatrixCoeffs, asString(params.sAspects.mMatrixCoeffs),
+                    params.sAspects.mTransfer, asString(params.sAspects.mTransfer),
+                    err, asString(err));
+        } else {
+            params.sAspects = aspects;
+            err = OK;
+        }
+        params.bDataSpaceChanged = OMX_FALSE;
+        for (int triesLeft = 2; --triesLeft >= 0; ) {
+            status_t err = setConfig(index, &params, sizeof(params));
+            if (err == OK) {
+                err = getConfig(index, &params, sizeof(params));
+            }
+            if (err != OK || !ColorUtils::checkIfAspectsChangedAndUnspecifyThem(
+                    params.sAspects, aspects)) {
+                // if we can't set or get color aspects, still communicate dataspace to client
+                break;
+            }
+
+            ALOGW_IF(triesLeft == 0, "Codec repeatedly changed requested ColorAspects.");
+        }
+    }
+
+    ALOGV("Set color aspects to (R:%d(%s), P:%d(%s), M:%d(%s), T:%d(%s)) err=%d(%s)",
+            aspects.mRange, asString(aspects.mRange),
+            aspects.mPrimaries, asString(aspects.mPrimaries),
+            aspects.mMatrixCoeffs, asString(aspects.mMatrixCoeffs),
+            aspects.mTransfer, asString(aspects.mTransfer),
+            err, asString(err));
+
+    // signal client that the dataspace has changed; this will update the output format
+    // TODO: we should tie this to an output buffer somehow, and signal the change
+    // just before the output buffer is returned to the client, but there are many
+    // ways this could fail (e.g. flushing), and we are not yet supporting this scenario.
+
+    msg.u.event_data.data1 = (OMX_U32) dataSpace;
+    msg.u.event_data.data2 = (OMX_U32) ColorUtils::packToU32(aspects);
+
+    return false;
+}
+
 void OMXNodeInstance::onMessages(std::list<omx_message> &messages) {
     for (std::list<omx_message>::iterator it = messages.begin(); it != messages.end(); ) {
         if (handleMessage(*it)) {
@@ -1775,15 +2061,11 @@
     }
 }
 
-void OMXNodeInstance::onObserverDied(OMXMaster *master) {
+void OMXNodeInstance::onObserverDied() {
     ALOGE("!!! Observer died. Quickly, do something, ... anything...");
 
     // Try to force shutdown of the node and hope for the best.
-    freeNode(master);
-}
-
-void OMXNodeInstance::onGetHandleFailed() {
-    delete this;
+    freeNode();
 }
 
 // OMXNodeInstance::OnEvent calls OMX::OnEvent, which then calls here.
@@ -1827,13 +2109,13 @@
 
     CLOGI_(level, onEvent, "%s(%x), %s(%x), %s(%x)",
             asString(event), event, arg1String, arg1, arg2String, arg2);
-    const sp<GraphicBufferSource>& bufferSource(getGraphicBufferSource());
+    const sp<IOMXBufferSource> bufferSource(getBufferSource());
 
     if (bufferSource != NULL
             && event == OMX_EventCmdComplete
             && arg1 == OMX_CommandStateSet
             && arg2 == OMX_StateExecuting) {
-        bufferSource->omxExecuting();
+        bufferSource->onOmxExecuting();
     }
 
     // allow configuration if we return to the loaded state
@@ -1860,8 +2142,39 @@
     if (instance->mDying) {
         return OMX_ErrorNone;
     }
-    return instance->owner()->OnEvent(
-            instance->nodeID(), eEvent, nData1, nData2, pEventData);
+
+    instance->onEvent(eEvent, nData1, nData2);
+
+    // output rendered events are not processed as regular events until they hit the observer
+    if (eEvent == OMX_EventOutputRendered) {
+        if (pEventData == NULL) {
+            return OMX_ErrorBadParameter;
+        }
+
+        // process data from array
+        OMX_VIDEO_RENDEREVENTTYPE *renderData = (OMX_VIDEO_RENDEREVENTTYPE *)pEventData;
+        for (size_t i = 0; i < nData1; ++i) {
+            omx_message msg;
+            msg.type = omx_message::FRAME_RENDERED;
+            msg.fenceFd = -1;
+            msg.u.render_data.timestamp = renderData[i].nMediaTimeUs;
+            msg.u.render_data.nanoTime = renderData[i].nSystemTimeNs;
+
+            instance->mDispatcher->post(msg, false /* realTime */);
+        }
+        return OMX_ErrorNone;
+    }
+
+    omx_message msg;
+    msg.type = omx_message::EVENT;
+    msg.fenceFd = -1;
+    msg.u.event_data.event = eEvent;
+    msg.u.event_data.data1 = nData1;
+    msg.u.event_data.data2 = nData2;
+
+    instance->mDispatcher->post(msg, true /* realTime */);
+
+    return OMX_ErrorNone;
 }
 
 // static
@@ -1878,8 +2191,14 @@
         return OMX_ErrorNone;
     }
     int fenceFd = instance->retrieveFenceFromMeta_l(pBuffer, kPortIndexOutput);
-    return instance->owner()->OnEmptyBufferDone(instance->nodeID(),
-            instance->findBufferID(pBuffer), pBuffer, fenceFd);
+
+    omx_message msg;
+    msg.type = omx_message::EMPTY_BUFFER_DONE;
+    msg.fenceFd = fenceFd;
+    msg.u.buffer_data.buffer = instance->findBufferID(pBuffer);
+    instance->mDispatcher->post(msg);
+
+    return OMX_ErrorNone;
 }
 
 // static
@@ -1896,11 +2215,21 @@
         return OMX_ErrorNone;
     }
     int fenceFd = instance->retrieveFenceFromMeta_l(pBuffer, kPortIndexOutput);
-    return instance->owner()->OnFillBufferDone(instance->nodeID(),
-            instance->findBufferID(pBuffer), pBuffer, fenceFd);
+
+    omx_message msg;
+    msg.type = omx_message::FILL_BUFFER_DONE;
+    msg.fenceFd = fenceFd;
+    msg.u.extended_buffer_data.buffer = instance->findBufferID(pBuffer);
+    msg.u.extended_buffer_data.range_offset = pBuffer->nOffset;
+    msg.u.extended_buffer_data.range_length = pBuffer->nFilledLen;
+    msg.u.extended_buffer_data.flags = pBuffer->nFlags;
+    msg.u.extended_buffer_data.timestamp = pBuffer->nTimeStamp;
+    instance->mDispatcher->post(msg);
+
+    return OMX_ErrorNone;
 }
 
-void OMXNodeInstance::addActiveBuffer(OMX_U32 portIndex, OMX::buffer_id id) {
+void OMXNodeInstance::addActiveBuffer(OMX_U32 portIndex, IOMX::buffer_id id) {
     ActiveBuffer active;
     active.mPortIndex = portIndex;
     active.mID = id;
@@ -1912,7 +2241,7 @@
 }
 
 void OMXNodeInstance::removeActiveBuffer(
-        OMX_U32 portIndex, OMX::buffer_id id) {
+        OMX_U32 portIndex, IOMX::buffer_id id) {
     for (size_t i = 0; i < mActiveBuffers.size(); ++i) {
         if (mActiveBuffers[i].mPortIndex == portIndex
                 && mActiveBuffers[i].mID == id) {
@@ -1937,17 +2266,17 @@
     }
 }
 
-OMX::buffer_id OMXNodeInstance::makeBufferID(OMX_BUFFERHEADERTYPE *bufferHeader) {
+IOMX::buffer_id OMXNodeInstance::makeBufferID(OMX_BUFFERHEADERTYPE *bufferHeader) {
     if (bufferHeader == NULL) {
         return 0;
     }
     Mutex::Autolock autoLock(mBufferIDLock);
-    OMX::buffer_id buffer;
+    IOMX::buffer_id buffer;
     do { // handle the very unlikely case of ID overflow
         if (++mBufferIDCount == 0) {
             ++mBufferIDCount;
         }
-        buffer = (OMX::buffer_id)mBufferIDCount;
+        buffer = (IOMX::buffer_id)mBufferIDCount;
     } while (mBufferIDToBufferHeader.indexOfKey(buffer) >= 0);
     mBufferIDToBufferHeader.add(buffer, bufferHeader);
     mBufferHeaderToBufferID.add(bufferHeader, buffer);
@@ -1955,7 +2284,7 @@
 }
 
 OMX_BUFFERHEADERTYPE *OMXNodeInstance::findBufferHeader(
-        OMX::buffer_id buffer, OMX_U32 portIndex) {
+        IOMX::buffer_id buffer, OMX_U32 portIndex) {
     if (buffer == 0) {
         return NULL;
     }
@@ -1976,7 +2305,7 @@
     return header;
 }
 
-OMX::buffer_id OMXNodeInstance::findBufferID(OMX_BUFFERHEADERTYPE *bufferHeader) {
+IOMX::buffer_id OMXNodeInstance::findBufferID(OMX_BUFFERHEADERTYPE *bufferHeader) {
     if (bufferHeader == NULL) {
         return 0;
     }
@@ -1989,7 +2318,7 @@
     return mBufferHeaderToBufferID.valueAt(index);
 }
 
-void OMXNodeInstance::invalidateBufferID(OMX::buffer_id buffer) {
+void OMXNodeInstance::invalidateBufferID(IOMX::buffer_id buffer) {
     if (buffer == 0) {
         return;
     }
diff --git a/media/libstagefright/omx/OMXUtils.cpp b/media/libstagefright/omx/OMXUtils.cpp
index 799696c..38aad39 100644
--- a/media/libstagefright/omx/OMXUtils.cpp
+++ b/media/libstagefright/omx/OMXUtils.cpp
@@ -20,7 +20,10 @@
 #include <string.h>
 
 #include <media/hardware/HardwareAPI.h>
+#include <media/stagefright/foundation/ADebug.h>
+#include <media/stagefright/foundation/AUtils.h>
 #include <media/stagefright/MediaErrors.h>
+#include <media/MediaDefs.h>
 #include "OMXUtils.h"
 
 namespace android {
@@ -101,5 +104,273 @@
 
 /**************************************************************************************************/
 
+const char *GetComponentRole(bool isEncoder, const char *mime) {
+    struct MimeToRole {
+        const char *mime;
+        const char *decoderRole;
+        const char *encoderRole;
+    };
+
+    static const MimeToRole kMimeToRole[] = {
+        { MEDIA_MIMETYPE_AUDIO_MPEG,
+            "audio_decoder.mp3", "audio_encoder.mp3" },
+        { MEDIA_MIMETYPE_AUDIO_MPEG_LAYER_I,
+            "audio_decoder.mp1", "audio_encoder.mp1" },
+        { MEDIA_MIMETYPE_AUDIO_MPEG_LAYER_II,
+            "audio_decoder.mp2", "audio_encoder.mp2" },
+        { MEDIA_MIMETYPE_AUDIO_AMR_NB,
+            "audio_decoder.amrnb", "audio_encoder.amrnb" },
+        { MEDIA_MIMETYPE_AUDIO_AMR_WB,
+            "audio_decoder.amrwb", "audio_encoder.amrwb" },
+        { MEDIA_MIMETYPE_AUDIO_AAC,
+            "audio_decoder.aac", "audio_encoder.aac" },
+        { MEDIA_MIMETYPE_AUDIO_VORBIS,
+            "audio_decoder.vorbis", "audio_encoder.vorbis" },
+        { MEDIA_MIMETYPE_AUDIO_OPUS,
+            "audio_decoder.opus", "audio_encoder.opus" },
+        { MEDIA_MIMETYPE_AUDIO_G711_MLAW,
+            "audio_decoder.g711mlaw", "audio_encoder.g711mlaw" },
+        { MEDIA_MIMETYPE_AUDIO_G711_ALAW,
+            "audio_decoder.g711alaw", "audio_encoder.g711alaw" },
+        { MEDIA_MIMETYPE_VIDEO_AVC,
+            "video_decoder.avc", "video_encoder.avc" },
+        { MEDIA_MIMETYPE_VIDEO_HEVC,
+            "video_decoder.hevc", "video_encoder.hevc" },
+        { MEDIA_MIMETYPE_VIDEO_MPEG4,
+            "video_decoder.mpeg4", "video_encoder.mpeg4" },
+        { MEDIA_MIMETYPE_VIDEO_H263,
+            "video_decoder.h263", "video_encoder.h263" },
+        { MEDIA_MIMETYPE_VIDEO_VP8,
+            "video_decoder.vp8", "video_encoder.vp8" },
+        { MEDIA_MIMETYPE_VIDEO_VP9,
+            "video_decoder.vp9", "video_encoder.vp9" },
+        { MEDIA_MIMETYPE_AUDIO_RAW,
+            "audio_decoder.raw", "audio_encoder.raw" },
+        { MEDIA_MIMETYPE_VIDEO_DOLBY_VISION,
+            "video_decoder.dolby-vision", "video_encoder.dolby-vision" },
+        { MEDIA_MIMETYPE_AUDIO_FLAC,
+            "audio_decoder.flac", "audio_encoder.flac" },
+        { MEDIA_MIMETYPE_AUDIO_MSGSM,
+            "audio_decoder.gsm", "audio_encoder.gsm" },
+        { MEDIA_MIMETYPE_VIDEO_MPEG2,
+            "video_decoder.mpeg2", "video_encoder.mpeg2" },
+        { MEDIA_MIMETYPE_AUDIO_AC3,
+            "audio_decoder.ac3", "audio_encoder.ac3" },
+        { MEDIA_MIMETYPE_AUDIO_EAC3,
+            "audio_decoder.eac3", "audio_encoder.eac3" },
+    };
+
+    static const size_t kNumMimeToRole =
+        sizeof(kMimeToRole) / sizeof(kMimeToRole[0]);
+
+    size_t i;
+    for (i = 0; i < kNumMimeToRole; ++i) {
+        if (!strcasecmp(mime, kMimeToRole[i].mime)) {
+            break;
+        }
+    }
+
+    if (i == kNumMimeToRole) {
+        return NULL;
+    }
+
+    return isEncoder ? kMimeToRole[i].encoderRole
+                  : kMimeToRole[i].decoderRole;
+}
+
+status_t SetComponentRole(const sp<IOMXNode> &omxNode, const char *role) {
+    OMX_PARAM_COMPONENTROLETYPE roleParams;
+    InitOMXParams(&roleParams);
+
+    strncpy((char *)roleParams.cRole,
+            role, OMX_MAX_STRINGNAME_SIZE - 1);
+
+    roleParams.cRole[OMX_MAX_STRINGNAME_SIZE - 1] = '\0';
+
+    return omxNode->setParameter(
+            OMX_IndexParamStandardComponentRole,
+            &roleParams, sizeof(roleParams));
+}
+
+bool DescribeDefaultColorFormat(DescribeColorFormat2Params &params) {
+    MediaImage2 &image = params.sMediaImage;
+    memset(&image, 0, sizeof(image));
+
+    image.mType = MediaImage2::MEDIA_IMAGE_TYPE_UNKNOWN;
+    image.mNumPlanes = 0;
+
+    const OMX_COLOR_FORMATTYPE fmt = params.eColorFormat;
+    image.mWidth = params.nFrameWidth;
+    image.mHeight = params.nFrameHeight;
+
+    // only supporting YUV420
+    if (fmt != OMX_COLOR_FormatYUV420Planar &&
+        fmt != OMX_COLOR_FormatYUV420PackedPlanar &&
+        fmt != OMX_COLOR_FormatYUV420SemiPlanar &&
+        fmt != OMX_COLOR_FormatYUV420PackedSemiPlanar &&
+        fmt != (OMX_COLOR_FORMATTYPE)HAL_PIXEL_FORMAT_YV12) {
+        ALOGW("do not know color format 0x%x = %d", fmt, fmt);
+        return false;
+    }
+
+    // TEMPORARY FIX for some vendors that advertise sliceHeight as 0
+    if (params.nStride != 0 && params.nSliceHeight == 0) {
+        ALOGW("using sliceHeight=%u instead of what codec advertised (=0)",
+                params.nFrameHeight);
+        params.nSliceHeight = params.nFrameHeight;
+    }
+
+    // we need stride and slice-height to be non-zero and sensible. These values were chosen to
+    // prevent integer overflows further down the line, and do not indicate support for
+    // 32kx32k video.
+    if (params.nStride == 0 || params.nSliceHeight == 0
+            || params.nStride > 32768 || params.nSliceHeight > 32768) {
+        ALOGW("cannot describe color format 0x%x = %d with stride=%u and sliceHeight=%u",
+                fmt, fmt, params.nStride, params.nSliceHeight);
+        return false;
+    }
+
+    // set-up YUV format
+    image.mType = MediaImage2::MEDIA_IMAGE_TYPE_YUV;
+    image.mNumPlanes = 3;
+    image.mBitDepth = 8;
+    image.mBitDepthAllocated = 8;
+    image.mPlane[image.Y].mOffset = 0;
+    image.mPlane[image.Y].mColInc = 1;
+    image.mPlane[image.Y].mRowInc = params.nStride;
+    image.mPlane[image.Y].mHorizSubsampling = 1;
+    image.mPlane[image.Y].mVertSubsampling = 1;
+
+    switch ((int)fmt) {
+        case HAL_PIXEL_FORMAT_YV12:
+            if (params.bUsingNativeBuffers) {
+                size_t ystride = align(params.nStride, 16);
+                size_t cstride = align(params.nStride / 2, 16);
+                image.mPlane[image.Y].mRowInc = ystride;
+
+                image.mPlane[image.V].mOffset = ystride * params.nSliceHeight;
+                image.mPlane[image.V].mColInc = 1;
+                image.mPlane[image.V].mRowInc = cstride;
+                image.mPlane[image.V].mHorizSubsampling = 2;
+                image.mPlane[image.V].mVertSubsampling = 2;
+
+                image.mPlane[image.U].mOffset = image.mPlane[image.V].mOffset
+                        + (cstride * params.nSliceHeight / 2);
+                image.mPlane[image.U].mColInc = 1;
+                image.mPlane[image.U].mRowInc = cstride;
+                image.mPlane[image.U].mHorizSubsampling = 2;
+                image.mPlane[image.U].mVertSubsampling = 2;
+                break;
+            } else {
+                // fall through as YV12 is used for YUV420Planar by some codecs
+            }
+
+        case OMX_COLOR_FormatYUV420Planar:
+        case OMX_COLOR_FormatYUV420PackedPlanar:
+            image.mPlane[image.U].mOffset = params.nStride * params.nSliceHeight;
+            image.mPlane[image.U].mColInc = 1;
+            image.mPlane[image.U].mRowInc = params.nStride / 2;
+            image.mPlane[image.U].mHorizSubsampling = 2;
+            image.mPlane[image.U].mVertSubsampling = 2;
+
+            image.mPlane[image.V].mOffset = image.mPlane[image.U].mOffset
+                    + (params.nStride * params.nSliceHeight / 4);
+            image.mPlane[image.V].mColInc = 1;
+            image.mPlane[image.V].mRowInc = params.nStride / 2;
+            image.mPlane[image.V].mHorizSubsampling = 2;
+            image.mPlane[image.V].mVertSubsampling = 2;
+            break;
+
+        case OMX_COLOR_FormatYUV420SemiPlanar:
+            // FIXME: NV21 for sw-encoder, NV12 for decoder and hw-encoder
+        case OMX_COLOR_FormatYUV420PackedSemiPlanar:
+            // NV12
+            image.mPlane[image.U].mOffset = params.nStride * params.nSliceHeight;
+            image.mPlane[image.U].mColInc = 2;
+            image.mPlane[image.U].mRowInc = params.nStride;
+            image.mPlane[image.U].mHorizSubsampling = 2;
+            image.mPlane[image.U].mVertSubsampling = 2;
+
+            image.mPlane[image.V].mOffset = image.mPlane[image.U].mOffset + 1;
+            image.mPlane[image.V].mColInc = 2;
+            image.mPlane[image.V].mRowInc = params.nStride;
+            image.mPlane[image.V].mHorizSubsampling = 2;
+            image.mPlane[image.V].mVertSubsampling = 2;
+            break;
+
+        default:
+            TRESPASS();
+    }
+    return true;
+}
+
+bool DescribeColorFormat(
+        const sp<IOMXNode> &omxNode,
+        DescribeColorFormat2Params &describeParams)
+{
+    OMX_INDEXTYPE describeColorFormatIndex;
+    if (omxNode->getExtensionIndex(
+            "OMX.google.android.index.describeColorFormat",
+            &describeColorFormatIndex) == OK) {
+        DescribeColorFormatParams describeParamsV1(describeParams);
+        if (omxNode->getParameter(
+                describeColorFormatIndex,
+                &describeParamsV1, sizeof(describeParamsV1)) == OK) {
+            describeParams.initFromV1(describeParamsV1);
+            return describeParams.sMediaImage.mType != MediaImage2::MEDIA_IMAGE_TYPE_UNKNOWN;
+        }
+    } else if (omxNode->getExtensionIndex(
+            "OMX.google.android.index.describeColorFormat2", &describeColorFormatIndex) == OK
+               && omxNode->getParameter(
+                       describeColorFormatIndex, &describeParams, sizeof(describeParams)) == OK) {
+        return describeParams.sMediaImage.mType != MediaImage2::MEDIA_IMAGE_TYPE_UNKNOWN;
+    }
+
+    return DescribeDefaultColorFormat(describeParams);
+}
+
+// static
+bool IsFlexibleColorFormat(
+         const sp<IOMXNode> &omxNode,
+         uint32_t colorFormat, bool usingNativeBuffers, OMX_U32 *flexibleEquivalent) {
+    DescribeColorFormat2Params describeParams;
+    InitOMXParams(&describeParams);
+    describeParams.eColorFormat = (OMX_COLOR_FORMATTYPE)colorFormat;
+    // reasonable dummy values
+    describeParams.nFrameWidth = 128;
+    describeParams.nFrameHeight = 128;
+    describeParams.nStride = 128;
+    describeParams.nSliceHeight = 128;
+    describeParams.bUsingNativeBuffers = (OMX_BOOL)usingNativeBuffers;
+
+    CHECK(flexibleEquivalent != NULL);
+
+    if (!DescribeColorFormat(omxNode, describeParams)) {
+        return false;
+    }
+
+    const MediaImage2 &img = describeParams.sMediaImage;
+    if (img.mType == MediaImage2::MEDIA_IMAGE_TYPE_YUV) {
+        if (img.mNumPlanes != 3
+                || img.mPlane[img.Y].mHorizSubsampling != 1
+                || img.mPlane[img.Y].mVertSubsampling != 1) {
+            return false;
+        }
+
+        // YUV 420
+        if (img.mPlane[img.U].mHorizSubsampling == 2
+                && img.mPlane[img.U].mVertSubsampling == 2
+                && img.mPlane[img.V].mHorizSubsampling == 2
+                && img.mPlane[img.V].mVertSubsampling == 2) {
+            // possible flexible YUV420 format
+            if (img.mBitDepth <= 8) {
+               *flexibleEquivalent = OMX_COLOR_FormatYUV420Flexible;
+               return true;
+            }
+        }
+    }
+    return false;
+}
+
 }  // namespace android
 
diff --git a/media/libstagefright/omx/OMXUtils.h b/media/libstagefright/omx/OMXUtils.h
index 0c5e537..401d64b 100644
--- a/media/libstagefright/omx/OMXUtils.h
+++ b/media/libstagefright/omx/OMXUtils.h
@@ -17,6 +17,8 @@
 #ifndef OMX_UTILS_H_
 #define OMX_UTILS_H_
 
+#include <media/IOMX.h>
+
 /***** DO NOT USE THIS INCLUDE!!! INTERAL ONLY!!! UNLESS YOU RESIDE IN media/libstagefright *****/
 
 // OMXUtils contains omx-specific utility functions for stagefright/omx library
@@ -36,6 +38,43 @@
 
 status_t StatusFromOMXError(OMX_ERRORTYPE err);
 
+const char *GetComponentRole(bool isEncoder, const char *mime);
+status_t SetComponentRole(const sp<IOMXNode> &omxNode, const char *role);
+
+struct DescribeColorFormat2Params;
+
+bool IsFlexibleColorFormat(
+        const sp<IOMXNode> &omxNode, uint32_t colorFormat,
+        bool usingNativeBuffers, OMX_U32 *flexibleEquivalent);
+bool DescribeDefaultColorFormat(DescribeColorFormat2Params &describeParams);
+bool DescribeColorFormat(
+        const sp<IOMXNode> &omxNode,
+        DescribeColorFormat2Params &describeParams);
+
+inline static const char *asString(MetadataBufferType i, const char *def = "??") {
+    using namespace android;
+    switch (i) {
+        case kMetadataBufferTypeCameraSource:   return "CameraSource";
+        case kMetadataBufferTypeGrallocSource:  return "GrallocSource";
+        case kMetadataBufferTypeANWBuffer:      return "ANWBuffer";
+        case kMetadataBufferTypeNativeHandleSource: return "NativeHandleSource";
+        case kMetadataBufferTypeInvalid:        return "Invalid";
+        default:                                return def;
+    }
+}
+
+inline static const char *asString(IOMX::PortMode mode, const char *def = "??") {
+    using namespace android;
+    switch (mode) {
+        case IOMX::kPortModePresetByteBuffer:   return "PresetByteBuffer";
+        case IOMX::kPortModePresetANWBuffer:    return "PresetANWBuffer";
+        case IOMX::kPortModePresetSecureBuffer: return "PresetSecureBuffer";
+        case IOMX::kPortModeDynamicANWBuffer:   return "DynamicANWBuffer";
+        case IOMX::kPortModeDynamicNativeHandle:return "DynamicNativeHandle";
+        default:                                return def;
+    }
+}
+
 }  // namespace android
 
 #endif
diff --git a/media/libstagefright/omx/SimpleSoftOMXComponent.cpp b/media/libstagefright/omx/SimpleSoftOMXComponent.cpp
index 7c975f7..761b425 100644
--- a/media/libstagefright/omx/SimpleSoftOMXComponent.cpp
+++ b/media/libstagefright/omx/SimpleSoftOMXComponent.cpp
@@ -77,19 +77,34 @@
     switch (index) {
         case OMX_IndexParamPortDefinition:
         {
-            portIndex = ((OMX_PARAM_PORTDEFINITIONTYPE *)params)->nPortIndex;
+            const OMX_PARAM_PORTDEFINITIONTYPE *portDefs =
+                    (const OMX_PARAM_PORTDEFINITIONTYPE *) params;
+            if (!isValidOMXParam(portDefs)) {
+                return false;
+            }
+            portIndex = portDefs->nPortIndex;
             break;
         }
 
         case OMX_IndexParamAudioPcm:
         {
-            portIndex = ((OMX_AUDIO_PARAM_PCMMODETYPE *)params)->nPortIndex;
+            const OMX_AUDIO_PARAM_PCMMODETYPE *pcmMode =
+                    (const OMX_AUDIO_PARAM_PCMMODETYPE *) params;
+            if (!isValidOMXParam(pcmMode)) {
+                return false;
+            }
+            portIndex = pcmMode->nPortIndex;
             break;
         }
 
         case OMX_IndexParamAudioAac:
         {
-            portIndex = ((OMX_AUDIO_PARAM_AACPROFILETYPE *)params)->nPortIndex;
+            const OMX_AUDIO_PARAM_AACPROFILETYPE *aacMode =
+                    (const OMX_AUDIO_PARAM_AACPROFILETYPE *) params;
+            if (!isValidOMXParam(aacMode)) {
+                return false;
+            }
+            portIndex = aacMode->nPortIndex;
             break;
         }
 
diff --git a/media/libstagefright/omx/SoftOMXPlugin.cpp b/media/libstagefright/omx/SoftOMXPlugin.cpp
old mode 100755
new mode 100644
index 0f9c00c..a773ca2
--- a/media/libstagefright/omx/SoftOMXPlugin.cpp
+++ b/media/libstagefright/omx/SoftOMXPlugin.cpp
@@ -56,6 +56,7 @@
     { "OMX.google.vp8.decoder", "vpxdec", "video_decoder.vp8" },
     { "OMX.google.vp9.decoder", "vpxdec", "video_decoder.vp9" },
     { "OMX.google.vp8.encoder", "vpxenc", "video_encoder.vp8" },
+    { "OMX.google.vp9.encoder", "vpxenc", "video_encoder.vp9" },
     { "OMX.google.raw.decoder", "rawdec", "audio_decoder.raw" },
     { "OMX.google.flac.encoder", "flacenc", "audio_encoder.flac" },
     { "OMX.google.gsm.decoder", "gsmdec", "audio_decoder.gsm" },
diff --git a/media/libstagefright/omx/SoftVideoEncoderOMXComponent.cpp b/media/libstagefright/omx/SoftVideoEncoderOMXComponent.cpp
index 0f9c118..c49403d 100644
--- a/media/libstagefright/omx/SoftVideoEncoderOMXComponent.cpp
+++ b/media/libstagefright/omx/SoftVideoEncoderOMXComponent.cpp
@@ -30,8 +30,8 @@
 #include <media/stagefright/foundation/AUtils.h>
 #include <media/stagefright/MediaDefs.h>
 
-#include <ui/GraphicBuffer.h>
 #include <ui/GraphicBufferMapper.h>
+#include <ui/Rect.h>
 
 #include <OMX_IndexExt.h>
 
@@ -480,18 +480,25 @@
             unsigned green = src[greenOffset];
             unsigned blue  = src[blueOffset];
 
-            // using ITU-R BT.601 conversion matrix
+            // Using ITU-R BT.601-7 (03/2011)
+            //   2.5.1: Ey'  = ( 0.299*R + 0.587*G + 0.114*B)
+            //   2.5.2: ECr' = ( 0.701*R - 0.587*G - 0.114*B) / 1.402
+            //          ECb' = (-0.299*R - 0.587*G + 0.886*B) / 1.772
+            //   2.5.3: Y  = 219 * Ey'  +  16
+            //          Cr = 224 * ECr' + 128
+            //          Cb = 224 * ECb' + 128
+
             unsigned luma =
-                ((red * 66 + green * 129 + blue * 25) >> 8) + 16;
+                ((red * 65 + green * 129 + blue * 25 + 128) >> 8) + 16;
 
             dstY[x] = luma;
 
             if ((x & 1) == 0 && (y & 1) == 0) {
                 unsigned U =
-                    ((-red * 38 - green * 74 + blue * 112) >> 8) + 128;
+                    ((-red * 38 - green * 74 + blue * 112 + 128) >> 8) + 128;
 
                 unsigned V =
-                    ((red * 112 - green * 94 - blue * 18) >> 8) + 128;
+                    ((red * 112 - green * 94 - blue * 18 + 128) >> 8) + 128;
 
                 dstU[x >> 1] = U;
                 dstV[x >> 1] = V;
diff --git a/media/libstagefright/omx/hal/1.0/Android.mk b/media/libstagefright/omx/hal/1.0/Android.mk
new file mode 100644
index 0000000..c14e909
--- /dev/null
+++ b/media/libstagefright/omx/hal/1.0/Android.mk
@@ -0,0 +1,3 @@
+LOCAL_PATH := $(call my-dir)
+include $(call all-makefiles-under,$(LOCAL_PATH))
+
diff --git a/media/libstagefright/omx/hal/1.0/impl/Android.mk b/media/libstagefright/omx/hal/1.0/impl/Android.mk
new file mode 100644
index 0000000..79cb1fa
--- /dev/null
+++ b/media/libstagefright/omx/hal/1.0/impl/Android.mk
@@ -0,0 +1,45 @@
+LOCAL_PATH := $(call my-dir)
+
+include $(CLEAR_VARS)
+LOCAL_MODULE := android.hardware.media.omx@1.0-impl
+LOCAL_SRC_FILES := \
+    WGraphicBufferSource.cpp \
+    WOmxBufferProducer.cpp \
+    WOmxBufferSource.cpp \
+    WOmxNode.cpp \
+    WOmxObserver.cpp \
+    WOmxProducerListener.cpp \
+    Omx.cpp \
+
+LOCAL_SHARED_LIBRARIES := \
+    libmedia \
+    libstagefright_foundation \
+    libstagefright_omx \
+    libui \
+    libgui \
+    libhidlbase \
+    libhidltransport \
+    libhwbinder \
+    libhidlmemory \
+    libutils \
+    libcutils \
+    libbinder \
+    liblog \
+    libbase \
+    android.hardware.media.omx@1.0 \
+    android.hardware.graphics.common@1.0 \
+    android.hardware.media@1.0 \
+    android.hidl.base@1.0 \
+
+LOCAL_C_FLAGS += \
+    -Wno-unused-parameter \
+    -Werror
+
+LOCAL_C_INCLUDES += \
+        $(TOP)/frameworks/av/include \
+        $(TOP)/frameworks/av/media/libstagefright \
+        $(TOP)/frameworks/native/include \
+        $(TOP)/frameworks/native/include/media/openmax \
+        $(TOP)/frameworks/native/include/media/hardware \
+
+include $(BUILD_SHARED_LIBRARY)
diff --git a/media/libstagefright/omx/hal/1.0/impl/Conversion.h b/media/libstagefright/omx/hal/1.0/impl/Conversion.h
new file mode 100644
index 0000000..a6fed2e
--- /dev/null
+++ b/media/libstagefright/omx/hal/1.0/impl/Conversion.h
@@ -0,0 +1,2178 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_MEDIA_OMX_V1_0__CONVERSION_H
+#define ANDROID_HARDWARE_MEDIA_OMX_V1_0__CONVERSION_H
+
+#include <vector>
+#include <list>
+
+#include <unistd.h>
+
+#include <hidl/MQDescriptor.h>
+#include <hidl/Status.h>
+#include <hidlmemory/mapping.h>
+
+#include <binder/Binder.h>
+#include <binder/Status.h>
+#include <ui/FenceTime.h>
+#include <media/OMXFenceParcelable.h>
+#include <cutils/native_handle.h>
+#include <gui/IGraphicBufferProducer.h>
+
+#include <media/OMXBuffer.h>
+#include <VideoAPI.h>
+
+#include <android/hidl/memory/1.0/IMemory.h>
+#include <android/hardware/media/omx/1.0/types.h>
+#include <android/hardware/media/omx/1.0/IOmx.h>
+#include <android/hardware/media/omx/1.0/IOmxNode.h>
+#include <android/hardware/media/omx/1.0/IOmxBufferProducer.h>
+#include <android/hardware/media/omx/1.0/IOmxBufferSource.h>
+#include <android/hardware/media/omx/1.0/IOmxObserver.h>
+#include <android/hardware/media/omx/1.0/IOmxProducerListener.h>
+#include <android/hardware/media/omx/1.0/IGraphicBufferSource.h>
+
+#include <android/IGraphicBufferSource.h>
+#include <android/IOMXBufferSource.h>
+
+namespace android {
+namespace hardware {
+namespace media {
+namespace omx {
+namespace V1_0 {
+namespace implementation {
+
+using ::android::hardware::hidl_array;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::hidl_handle;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::sp;
+
+using ::android::String8;
+using ::android::OMXFenceParcelable;
+
+using ::android::hardware::media::omx::V1_0::Message;
+using ::android::omx_message;
+
+using ::android::hardware::media::omx::V1_0::ColorAspects;
+using ::android::hardware::media::V1_0::Rect;
+using ::android::hardware::media::V1_0::Region;
+
+using ::android::hardware::graphics::common::V1_0::Dataspace;
+
+using ::android::hardware::graphics::common::V1_0::PixelFormat;
+
+using ::android::OMXBuffer;
+
+using ::android::hardware::media::V1_0::AnwBuffer;
+using ::android::GraphicBuffer;
+
+using ::android::hardware::media::omx::V1_0::IOmx;
+using ::android::IOMX;
+
+using ::android::hardware::media::omx::V1_0::IOmxNode;
+using ::android::IOMXNode;
+
+using ::android::hardware::media::omx::V1_0::IOmxObserver;
+using ::android::IOMXObserver;
+
+using ::android::hardware::media::omx::V1_0::IOmxBufferSource;
+using ::android::IOMXBufferSource;
+
+using ::android::hardware::media::omx::V1_0::IOmxBufferProducer;
+using ::android::IGraphicBufferProducer;
+
+// native_handle_t helper functions.
+
+/**
+ * \brief Take an fd and create a native handle containing only the given fd.
+ * The created handle will need to be deleted manually with
+ * `native_handle_delete()`.
+ *
+ * \param[in] fd The source file descriptor (of type `int`).
+ * \return The create `native_handle_t*` that contains the given \p fd. If the
+ * supplied \p fd is negative, the created native handle will contain no file
+ * descriptors.
+ *
+ * If the native handle cannot be created, the return value will be
+ * `nullptr`.
+ *
+ * This function does not duplicate the file descriptor.
+ */
+inline native_handle_t* native_handle_create_from_fd(int fd) {
+    if (fd < 0) {
+        return native_handle_create(0, 0);
+    }
+    native_handle_t* nh = native_handle_create(1, 0);
+    if (nh == nullptr) {
+        return nullptr;
+    }
+    nh->data[0] = fd;
+    return nh;
+}
+
+/**
+ * \brief Extract a file descriptor from a native handle.
+ *
+ * \param[in] nh The source `native_handle_t*`.
+ * \param[in] index The index of the file descriptor in \p nh to read from. This
+ * input has the default value of `0`.
+ * \return The `index`-th file descriptor in \p nh. If \p nh does not have
+ * enough file descriptors, the returned value will be `-1`.
+ *
+ * This function does not duplicate the file descriptor.
+ */
+inline int native_handle_read_fd(native_handle_t const* nh, int index = 0) {
+    return ((nh == nullptr) || (nh->numFds == 0) ||
+            (nh->numFds <= index) || (index < 0)) ?
+            -1 : nh->data[index];
+}
+
+/**
+ * Conversion functions
+ * ====================
+ *
+ * There are two main directions of conversion:
+ * - `inTargetType(...)`: Create a wrapper whose lifetime depends on the
+ *   input. The wrapper has type `TargetType`.
+ * - `toTargetType(...)`: Create a standalone object of type `TargetType` that
+ *   corresponds to the input. The lifetime of the output does not depend on the
+ *   lifetime of the input.
+ * - `wrapIn(TargetType*, ...)`: Same as `inTargetType()`, but for `TargetType`
+ *   that cannot be copied and/or moved efficiently, or when there are multiple
+ *   output arguments.
+ * - `convertTo(TargetType*, ...)`: Same as `toTargetType()`, but for
+ *   `TargetType` that cannot be copied and/or moved efficiently, or when there
+ *   are multiple output arguments.
+ *
+ * `wrapIn()` and `convertTo()` functions will take output arguments before
+ * input arguments. Some of these functions might return a value to indicate
+ * success or error.
+ *
+ * In converting or wrapping something as a Treble type that contains a
+ * `hidl_handle`, `native_handle_t*` will need to be created and returned as
+ * an additional output argument, hence only `wrapIn()` or `convertTo()` would
+ * be available. The caller must call `native_handle_delete()` to deallocate the
+ * returned native handle when it is no longer needed.
+ *
+ * For types that contain file descriptors, `inTargetType()` and `wrapAs()` do
+ * not perform duplication of file descriptors, while `toTargetType()` and
+ * `convertTo()` do.
+ */
+
+/**
+ * \brief Convert `Return<void>` to `binder::Status`.
+ *
+ * \param[in] t The source `Return<void>`.
+ * \return The corresponding `binder::Status`.
+ */
+// convert: Return<void> -> ::android::binder::Status
+inline ::android::binder::Status toBinderStatus(
+        Return<void> const& t) {
+    return ::android::binder::Status::fromExceptionCode(
+            t.isOk() ? OK : UNKNOWN_ERROR,
+            t.description().c_str());
+}
+
+/**
+ * \brief Convert `Return<Status>` to `status_t`. This is for legacy binder
+ * calls.
+ *
+ * \param[in] t The source `Return<Status>`.
+ * \return The corresponding `status_t`.
+ *
+ * This function first check if \p t has a transport error. If it does, then the
+ * return value is the transport error code. Otherwise, the return value is
+ * converted from `Status` contained inside \p t.
+ *
+ * Note:
+ * - This `Status` is omx-specific. It is defined in `types.hal`.
+ * - The name of this function is not `convert`.
+ */
+// convert: Status -> status_t
+inline status_t toStatusT(Return<Status> const& t) {
+    return t.isOk() ? static_cast<status_t>(static_cast<Status>(t)) : UNKNOWN_ERROR;
+}
+
+/**
+ * \brief Convert `Return<void>` to `status_t`. This is for legacy binder calls.
+ *
+ * \param[in] t The source `Return<void>`.
+ * \return The corresponding `status_t`.
+ */
+// convert: Return<void> -> status_t
+inline status_t toStatusT(Return<void> const& t) {
+    return t.isOk() ? OK : UNKNOWN_ERROR;
+}
+
+/**
+ * \brief Convert `Status` to `status_t`. This is for legacy binder calls.
+ *
+ * \param[in] t The source `Status`.
+ * \return the corresponding `status_t`.
+ */
+// convert: Status -> status_t
+inline status_t toStatusT(Status const& t) {
+    return static_cast<status_t>(t);
+}
+
+/**
+ * \brief Convert `status_t` to `Status`.
+ *
+ * \param[in] l The source `status_t`.
+ * \return The corresponding `Status`.
+ */
+// convert: status_t -> Status
+inline Status toStatus(status_t l) {
+    return static_cast<Status>(l);
+}
+
+/**
+ * \brief Wrap `native_handle_t*` in `hidl_handle`.
+ *
+ * \param[in] nh The source `native_handle_t*`.
+ * \return The `hidl_handle` that points to \p nh.
+ */
+// wrap: native_handle_t* -> hidl_handle
+inline hidl_handle inHidlHandle(native_handle_t const* nh) {
+    return hidl_handle(nh);
+}
+
+/**
+ * \brief Wrap an `omx_message` and construct the corresponding `Message`.
+ *
+ * \param[out] t The wrapper of type `Message`.
+ * \param[out] nh The native_handle_t referred to by `t->fence`.
+ * \param[in] l The source `omx_message`.
+ * \return `true` if the wrapping is successful; `false` otherwise.
+ *
+ * Upon success, \p nh will be created to hold the file descriptor stored in
+ * `l.fenceFd`, and `t->fence` will point to \p nh. \p nh will need to be
+ * destroyed manually by `native_handle_delete()` when \p t is no longer needed.
+ *
+ * Upon failure, \p nh will not be created and will not need to be deleted. \p t
+ * will be invalid.
+ */
+// wrap, omx_message -> Message, native_handle_t*
+inline bool wrapAs(Message* t, native_handle_t** nh, omx_message const& l) {
+    *nh = native_handle_create_from_fd(l.fenceFd);
+    if (!*nh) {
+        return false;
+    }
+    t->fence = *nh;
+    switch (l.type) {
+        case omx_message::EVENT:
+            t->type = Message::Type::EVENT;
+            t->data.eventData.event = uint32_t(l.u.event_data.event);
+            t->data.eventData.data1 = l.u.event_data.data1;
+            t->data.eventData.data2 = l.u.event_data.data2;
+            t->data.eventData.data3 = l.u.event_data.data3;
+            t->data.eventData.data4 = l.u.event_data.data4;
+            break;
+        case omx_message::EMPTY_BUFFER_DONE:
+            t->type = Message::Type::EMPTY_BUFFER_DONE;
+            t->data.bufferData.buffer = l.u.buffer_data.buffer;
+            break;
+        case omx_message::FILL_BUFFER_DONE:
+            t->type = Message::Type::FILL_BUFFER_DONE;
+            t->data.extendedBufferData.buffer = l.u.extended_buffer_data.buffer;
+            t->data.extendedBufferData.rangeOffset =
+                    l.u.extended_buffer_data.range_offset;
+            t->data.extendedBufferData.rangeLength =
+                    l.u.extended_buffer_data.range_length;
+            t->data.extendedBufferData.flags = l.u.extended_buffer_data.flags;
+            t->data.extendedBufferData.timestampUs =
+                    l.u.extended_buffer_data.timestamp;
+            break;
+        case omx_message::FRAME_RENDERED:
+            t->type = Message::Type::FRAME_RENDERED;
+            t->data.renderData.timestampUs = l.u.render_data.timestamp;
+            t->data.renderData.systemTimeNs = l.u.render_data.nanoTime;
+            break;
+        default:
+            native_handle_delete(*nh);
+            return false;
+    }
+    return true;
+}
+
+/**
+ * \brief Wrap a `Message` inside an `omx_message`.
+ *
+ * \param[out] l The wrapper of type `omx_message`.
+ * \param[in] t The source `Message`.
+ * \return `true` if the wrapping is successful; `false` otherwise.
+ */
+// wrap: Message -> omx_message
+inline bool wrapAs(omx_message* l, Message const& t) {
+    l->fenceFd = native_handle_read_fd(t.fence);
+    switch (t.type) {
+        case Message::Type::EVENT:
+            l->type = omx_message::EVENT;
+            l->u.event_data.event = OMX_EVENTTYPE(t.data.eventData.event);
+            l->u.event_data.data1 = t.data.eventData.data1;
+            l->u.event_data.data2 = t.data.eventData.data2;
+            l->u.event_data.data3 = t.data.eventData.data3;
+            l->u.event_data.data4 = t.data.eventData.data4;
+            break;
+        case Message::Type::EMPTY_BUFFER_DONE:
+            l->type = omx_message::EMPTY_BUFFER_DONE;
+            l->u.buffer_data.buffer = t.data.bufferData.buffer;
+            break;
+        case Message::Type::FILL_BUFFER_DONE:
+            l->type = omx_message::FILL_BUFFER_DONE;
+            l->u.extended_buffer_data.buffer = t.data.extendedBufferData.buffer;
+            l->u.extended_buffer_data.range_offset =
+                    t.data.extendedBufferData.rangeOffset;
+            l->u.extended_buffer_data.range_length =
+                    t.data.extendedBufferData.rangeLength;
+            l->u.extended_buffer_data.flags = t.data.extendedBufferData.flags;
+            l->u.extended_buffer_data.timestamp =
+                    t.data.extendedBufferData.timestampUs;
+            break;
+        case Message::Type::FRAME_RENDERED:
+            l->type = omx_message::FRAME_RENDERED;
+            l->u.render_data.timestamp = t.data.renderData.timestampUs;
+            l->u.render_data.nanoTime = t.data.renderData.systemTimeNs;
+            break;
+        default:
+            return false;
+    }
+    return true;
+}
+
+/**
+ * \brief Similar to `wrapTo(omx_message*, Message const&)`, but the output will
+ * have an extended lifetime.
+ *
+ * \param[out] l The output `omx_message`.
+ * \param[in] t The source `Message`.
+ * \return `true` if the conversion is successful; `false` otherwise.
+ *
+ * This function calls `wrapto()`, then attempts to duplicate the file
+ * descriptor for the fence if it is not `-1`. If duplication fails, `false`
+ * will be returned.
+ */
+// convert: Message -> omx_message
+inline bool convertTo(omx_message* l, Message const& t) {
+    if (!wrapAs(l, t)) {
+        return false;
+    }
+    if (l->fenceFd == -1) {
+        return true;
+    }
+    l->fenceFd = dup(l->fenceFd);
+    return l->fenceFd != -1;
+}
+
+/**
+ * \brief Wrap an `OMXFenceParcelable` inside a `hidl_handle`.
+ *
+ * \param[out] t The wrapper of type `hidl_handle`.
+ * \param[out] nh The native handle created to hold the file descriptor inside
+ * \p l.
+ * \param[in] l The source `OMXFenceParcelable`, which essentially contains one
+ * file descriptor.
+ * \return `true` if \p t and \p nh are successfully created to wrap around \p
+ * l; `false` otherwise.
+ *
+ * On success, \p nh needs to be deleted by the caller with
+ * `native_handle_delete()` after \p t and \p nh are no longer needed.
+ *
+ * On failure, \p nh will not need to be deleted, and \p t will hold an invalid
+ * value.
+ */
+// wrap: OMXFenceParcelable -> hidl_handle, native_handle_t*
+inline bool wrapAs(hidl_handle* t, native_handle_t** nh,
+        OMXFenceParcelable const& l) {
+    *nh = native_handle_create_from_fd(l.get());
+    if (!*nh) {
+        return false;
+    }
+    *t = *nh;
+    return true;
+}
+
+/**
+ * \brief Wrap a `hidl_handle` inside an `OMXFenceParcelable`.
+ *
+ * \param[out] l The wrapper of type `OMXFenceParcelable`.
+ * \param[in] t The source `hidl_handle`.
+ */
+// wrap: hidl_handle -> OMXFenceParcelable
+inline void wrapAs(OMXFenceParcelable* l, hidl_handle const& t) {
+    l->mFenceFd = native_handle_read_fd(t);
+}
+
+/**
+ * \brief Convert a `hidl_handle` to `OMXFenceParcelable`. If `hidl_handle`
+ * contains file descriptors, the first file descriptor will be duplicated and
+ * stored in the output `OMXFenceParcelable`.
+ *
+ * \param[out] l The output `OMXFenceParcelable`.
+ * \param[in] t The input `hidl_handle`.
+ * \return `false` if \p t contains a valid file descriptor but duplication
+ * fails; `true` otherwise.
+ */
+// convert: hidl_handle -> OMXFenceParcelable
+inline bool convertTo(OMXFenceParcelable* l, hidl_handle const& t) {
+    int fd = native_handle_read_fd(t);
+    if (fd != -1) {
+        fd = dup(fd);
+        if (fd == -1) {
+            return false;
+        }
+    }
+    l->mFenceFd = fd;
+    return true;
+}
+
+/**
+ * \brief Convert `::android::ColorAspects` to `ColorAspects`.
+ *
+ * \param[in] l The source `::android::ColorAspects`.
+ * \return The corresponding `ColorAspects`.
+ */
+// convert: ::android::ColorAspects -> ColorAspects
+inline ColorAspects toHardwareColorAspects(::android::ColorAspects const& l) {
+    return ColorAspects{
+            static_cast<ColorAspects::Range>(l.mRange),
+            static_cast<ColorAspects::Primaries>(l.mPrimaries),
+            static_cast<ColorAspects::Transfer>(l.mTransfer),
+            static_cast<ColorAspects::MatrixCoeffs>(l.mMatrixCoeffs)};
+}
+
+/**
+ * \brief Convert `int32_t` to `ColorAspects`.
+ *
+ * \param[in] l The source `int32_t`.
+ * \return The corresponding `ColorAspects`.
+ */
+// convert: int32_t -> ColorAspects
+inline ColorAspects toHardwareColorAspects(int32_t l) {
+    return ColorAspects{
+            static_cast<ColorAspects::Range>((l >> 24) & 0xFF),
+            static_cast<ColorAspects::Primaries>((l >> 16) & 0xFF),
+            static_cast<ColorAspects::Transfer>(l & 0xFF),
+            static_cast<ColorAspects::MatrixCoeffs>((l >> 8) & 0xFF)};
+}
+
+/**
+ * \brief Convert `ColorAspects` to `::android::ColorAspects`.
+ *
+ * \param[in] t The source `ColorAspects`.
+ * \return The corresponding `::android::ColorAspects`.
+ */
+// convert: ColorAspects -> ::android::ColorAspects
+inline int32_t toCompactColorAspects(ColorAspects const& t) {
+    return static_cast<int32_t>(
+            (static_cast<uint32_t>(t.range) << 24) |
+            (static_cast<uint32_t>(t.primaries) << 16) |
+            (static_cast<uint32_t>(t.transfer)) |
+            (static_cast<uint32_t>(t.matrixCoeffs) << 8));
+}
+
+/**
+ * \brief Convert `int32_t` to `Dataspace`.
+ *
+ * \param[in] l The source `int32_t`.
+ * \result The corresponding `Dataspace`.
+ */
+// convert: int32_t -> Dataspace
+inline Dataspace toHardwareDataspace(int32_t l) {
+    return static_cast<Dataspace>(l);
+}
+
+/**
+ * \brief Convert `Dataspace` to `int32_t`.
+ *
+ * \param[in] t The source `Dataspace`.
+ * \result The corresponding `int32_t`.
+ */
+// convert: Dataspace -> int32_t
+inline int32_t toRawDataspace(Dataspace const& t) {
+    return static_cast<int32_t>(t);
+}
+
+/**
+ * \brief Wrap an opaque buffer inside a `hidl_vec<uint8_t>`.
+ *
+ * \param[in] l The pointer to the beginning of the opaque buffer.
+ * \param[in] size The size of the buffer.
+ * \return A `hidl_vec<uint8_t>` that points to the buffer.
+ */
+// wrap: void*, size_t -> hidl_vec<uint8_t>
+inline hidl_vec<uint8_t> inHidlBytes(void const* l, size_t size) {
+    hidl_vec<uint8_t> t;
+    t.setToExternal(static_cast<uint8_t*>(const_cast<void*>(l)), size, false);
+    return t;
+}
+
+/**
+ * \brief Create a `hidl_vec<uint8_t>` that is a copy of an opaque buffer.
+ *
+ * \param[in] l The pointer to the beginning of the opaque buffer.
+ * \param[in] size The size of the buffer.
+ * \return A `hidl_vec<uint8_t>` that is a copy of the input buffer.
+ */
+// convert: void*, size_t -> hidl_vec<uint8_t>
+inline hidl_vec<uint8_t> toHidlBytes(void const* l, size_t size) {
+    hidl_vec<uint8_t> t;
+    t.resize(size);
+    uint8_t const* src = static_cast<uint8_t const*>(l);
+    std::copy(src, src + size, t.data());
+    return t;
+}
+
+/**
+ * \brief Wrap `GraphicBuffer` in `AnwBuffer`.
+ *
+ * \param[out] t The wrapper of type `AnwBuffer`.
+ * \param[in] l The source `GraphicBuffer`.
+ */
+// wrap: GraphicBuffer -> AnwBuffer
+inline void wrapAs(AnwBuffer* t, GraphicBuffer const& l) {
+    t->attr.width = l.getWidth();
+    t->attr.height = l.getHeight();
+    t->attr.stride = l.getStride();
+    t->attr.format = static_cast<PixelFormat>(l.getPixelFormat());
+    t->attr.layerCount = l.getLayerCount();
+    t->attr.usage = l.getUsage();
+    t->attr.id = l.getId();
+    t->attr.generationNumber = l.getGenerationNumber();
+    t->nativeHandle = hidl_handle(l.handle);
+}
+
+/**
+ * \brief Convert `AnwBuffer` to `GraphicBuffer`.
+ *
+ * \param[out] l The destination `GraphicBuffer`.
+ * \param[in] t The source `AnwBuffer`.
+ *
+ * This function will duplicate all file descriptors in \p t.
+ */
+// convert: AnwBuffer -> GraphicBuffer
+// Ref: frameworks/native/libs/ui/GraphicBuffer.cpp: GraphicBuffer::flatten
+inline bool convertTo(GraphicBuffer* l, AnwBuffer const& t) {
+    native_handle_t* handle = t.nativeHandle == nullptr ?
+            nullptr : native_handle_clone(t.nativeHandle);
+
+    size_t const numInts = 12 + (handle ? handle->numInts : 0);
+    int32_t* ints = new int32_t[numInts];
+
+    size_t numFds = static_cast<size_t>(handle ? handle->numFds : 0);
+    int* fds = new int[numFds];
+
+    ints[0] = 'GBFR';
+    ints[1] = static_cast<int32_t>(t.attr.width);
+    ints[2] = static_cast<int32_t>(t.attr.height);
+    ints[3] = static_cast<int32_t>(t.attr.stride);
+    ints[4] = static_cast<int32_t>(t.attr.format);
+    ints[5] = static_cast<int32_t>(t.attr.layerCount);
+    ints[6] = static_cast<int32_t>(t.attr.usage);
+    ints[7] = static_cast<int32_t>(t.attr.id >> 32);
+    ints[8] = static_cast<int32_t>(t.attr.id & 0xFFFFFFFF);
+    ints[9] = static_cast<int32_t>(t.attr.generationNumber);
+    ints[10] = 0;
+    ints[11] = 0;
+    if (handle) {
+        ints[10] = static_cast<int32_t>(handle->numFds);
+        ints[11] = static_cast<int32_t>(handle->numInts);
+        int* intsStart = handle->data + handle->numFds;
+        std::copy(handle->data, intsStart, fds);
+        std::copy(intsStart, intsStart + handle->numInts, &ints[12]);
+    }
+
+    void const* constBuffer = static_cast<void const*>(ints);
+    size_t size = numInts * sizeof(int32_t);
+    int const* constFds = static_cast<int const*>(fds);
+    status_t status = l->unflatten(constBuffer, size, constFds, numFds);
+
+    delete [] fds;
+    delete [] ints;
+    native_handle_delete(handle);
+    return status == NO_ERROR;
+}
+
+/**
+ * \brief Wrap `GraphicBuffer` in `CodecBuffer`.
+ *
+ * \param[out] t The wrapper of type `CodecBuffer`.
+ * \param[in] l The source `GraphicBuffer`.
+ */
+// wrap: OMXBuffer -> CodecBuffer
+inline CodecBuffer *wrapAs(CodecBuffer *t, sp<GraphicBuffer> const& graphicBuffer) {
+    t->sharedMemory = hidl_memory();
+    t->nativeHandle = hidl_handle();
+    t->type = CodecBuffer::Type::ANW_BUFFER;
+    if (graphicBuffer == nullptr) {
+        t->attr.anwBuffer.width = 0;
+        t->attr.anwBuffer.height = 0;
+        t->attr.anwBuffer.stride = 0;
+        t->attr.anwBuffer.format = static_cast<PixelFormat>(1);
+        t->attr.anwBuffer.layerCount = 0;
+        t->attr.anwBuffer.usage = 0;
+        return t;
+    }
+    t->attr.anwBuffer.width = graphicBuffer->getWidth();
+    t->attr.anwBuffer.height = graphicBuffer->getHeight();
+    t->attr.anwBuffer.stride = graphicBuffer->getStride();
+    t->attr.anwBuffer.format = static_cast<PixelFormat>(
+            graphicBuffer->getPixelFormat());
+    t->attr.anwBuffer.layerCount = graphicBuffer->getLayerCount();
+    t->attr.anwBuffer.usage = graphicBuffer->getUsage();
+    t->nativeHandle = graphicBuffer->handle;
+    return t;
+}
+
+/**
+ * \brief Wrap `OMXBuffer` in `CodecBuffer`.
+ *
+ * \param[out] t The wrapper of type `CodecBuffer`.
+ * \param[in] l The source `OMXBuffer`.
+ * \return `true` if the wrapping is successful; `false` otherwise.
+ */
+// wrap: OMXBuffer -> CodecBuffer
+inline bool wrapAs(CodecBuffer* t, OMXBuffer const& l) {
+    t->sharedMemory = hidl_memory();
+    t->nativeHandle = hidl_handle();
+    switch (l.mBufferType) {
+        case OMXBuffer::kBufferTypeInvalid: {
+            t->type = CodecBuffer::Type::INVALID;
+            return true;
+        }
+        case OMXBuffer::kBufferTypePreset: {
+            t->type = CodecBuffer::Type::PRESET;
+            t->attr.preset.rangeLength = static_cast<uint32_t>(l.mRangeLength);
+            t->attr.preset.rangeOffset = static_cast<uint32_t>(l.mRangeOffset);
+            return true;
+        }
+        case OMXBuffer::kBufferTypeHidlMemory: {
+            t->type = CodecBuffer::Type::SHARED_MEM;
+            t->sharedMemory = l.mHidlMemory;
+            return true;
+        }
+        case OMXBuffer::kBufferTypeSharedMem: {
+            // This is not supported.
+            return false;
+        }
+        case OMXBuffer::kBufferTypeANWBuffer: {
+            wrapAs(t, l.mGraphicBuffer);
+            return true;
+        }
+        case OMXBuffer::kBufferTypeNativeHandle: {
+            t->type = CodecBuffer::Type::NATIVE_HANDLE;
+            t->nativeHandle = l.mNativeHandle->handle();
+            return true;
+        }
+    }
+    return false;
+}
+
+/**
+ * \brief Convert `CodecBuffer` to `OMXBuffer`.
+ *
+ * \param[out] l The destination `OMXBuffer`.
+ * \param[in] t The source `CodecBuffer`.
+ * \return `true` if successful; `false` otherwise.
+ */
+// convert: CodecBuffer -> OMXBuffer
+inline bool convertTo(OMXBuffer* l, CodecBuffer const& t) {
+    switch (t.type) {
+        case CodecBuffer::Type::INVALID: {
+            *l = OMXBuffer();
+            return true;
+        }
+        case CodecBuffer::Type::PRESET: {
+            *l = OMXBuffer(
+                    t.attr.preset.rangeOffset,
+                    t.attr.preset.rangeLength);
+            return true;
+        }
+        case CodecBuffer::Type::SHARED_MEM: {
+            *l = OMXBuffer(t.sharedMemory);
+            return true;
+        }
+        case CodecBuffer::Type::ANW_BUFFER: {
+            if (t.nativeHandle.getNativeHandle() == nullptr) {
+                *l = OMXBuffer(sp<GraphicBuffer>(nullptr));
+                return true;
+            }
+            AnwBuffer anwBuffer;
+            anwBuffer.nativeHandle = t.nativeHandle;
+            anwBuffer.attr = t.attr.anwBuffer;
+            sp<GraphicBuffer> graphicBuffer = new GraphicBuffer();
+            if (!convertTo(graphicBuffer.get(), anwBuffer)) {
+                return false;
+            }
+            *l = OMXBuffer(graphicBuffer);
+            return true;
+        }
+        case CodecBuffer::Type::NATIVE_HANDLE: {
+            *l = OMXBuffer(NativeHandle::create(
+                    native_handle_clone(t.nativeHandle), true));
+            return true;
+        }
+    }
+    return false;
+}
+
+/**
+ * \brief Convert `IOMX::ComponentInfo` to `IOmx::ComponentInfo`.
+ *
+ * \param[out] t The destination `IOmx::ComponentInfo`.
+ * \param[in] l The source `IOMX::ComponentInfo`.
+ */
+// convert: IOMX::ComponentInfo -> IOmx::ComponentInfo
+inline bool convertTo(IOmx::ComponentInfo* t, IOMX::ComponentInfo const& l) {
+    t->mName = l.mName.string();
+    t->mRoles.resize(l.mRoles.size());
+    size_t i = 0;
+    for (auto& role : l.mRoles) {
+        t->mRoles[i++] = role.string();
+    }
+    return true;
+}
+
+/**
+ * \brief Convert `IOmx::ComponentInfo` to `IOMX::ComponentInfo`.
+ *
+ * \param[out] l The destination `IOMX::ComponentInfo`.
+ * \param[in] t The source `IOmx::ComponentInfo`.
+ */
+// convert: IOmx::ComponentInfo -> IOMX::ComponentInfo
+inline bool convertTo(IOMX::ComponentInfo* l, IOmx::ComponentInfo const& t) {
+    l->mName = t.mName.c_str();
+    l->mRoles.clear();
+    for (size_t i = 0; i < t.mRoles.size(); ++i) {
+        l->mRoles.push_back(String8(t.mRoles[i].c_str()));
+    }
+    return true;
+}
+
+/**
+ * \brief Convert `OMX_BOOL` to `bool`.
+ *
+ * \param[in] l The source `OMX_BOOL`.
+ * \return The destination `bool`.
+ */
+// convert: OMX_BOOL -> bool
+inline bool toRawBool(OMX_BOOL l) {
+    return l == OMX_FALSE ? false : true;
+}
+
+/**
+ * \brief Convert `bool` to `OMX_BOOL`.
+ *
+ * \param[in] t The source `bool`.
+ * \return The destination `OMX_BOOL`.
+ */
+// convert: bool -> OMX_BOOL
+inline OMX_BOOL toEnumBool(bool t) {
+    return t ? OMX_TRUE : OMX_FALSE;
+}
+
+/**
+ * \brief Convert `OMX_COMMANDTYPE` to `uint32_t`.
+ *
+ * \param[in] l The source `OMX_COMMANDTYPE`.
+ * \return The underlying value of type `uint32_t`.
+ *
+ * `OMX_COMMANDTYPE` is an enum type whose underlying type is `uint32_t`.
+ */
+// convert: OMX_COMMANDTYPE -> uint32_t
+inline uint32_t toRawCommandType(OMX_COMMANDTYPE l) {
+    return static_cast<uint32_t>(l);
+}
+
+/**
+ * \brief Convert `uint32_t` to `OMX_COMMANDTYPE`.
+ *
+ * \param[in] t The source `uint32_t`.
+ * \return The corresponding enum value of type `OMX_COMMANDTYPE`.
+ *
+ * `OMX_COMMANDTYPE` is an enum type whose underlying type is `uint32_t`.
+ */
+// convert: uint32_t -> OMX_COMMANDTYPE
+inline OMX_COMMANDTYPE toEnumCommandType(uint32_t t) {
+    return static_cast<OMX_COMMANDTYPE>(t);
+}
+
+/**
+ * \brief Convert `OMX_INDEXTYPE` to `uint32_t`.
+ *
+ * \param[in] l The source `OMX_INDEXTYPE`.
+ * \return The underlying value of type `uint32_t`.
+ *
+ * `OMX_INDEXTYPE` is an enum type whose underlying type is `uint32_t`.
+ */
+// convert: OMX_INDEXTYPE -> uint32_t
+inline uint32_t toRawIndexType(OMX_INDEXTYPE l) {
+    return static_cast<uint32_t>(l);
+}
+
+/**
+ * \brief Convert `uint32_t` to `OMX_INDEXTYPE`.
+ *
+ * \param[in] t The source `uint32_t`.
+ * \return The corresponding enum value of type `OMX_INDEXTYPE`.
+ *
+ * `OMX_INDEXTYPE` is an enum type whose underlying type is `uint32_t`.
+ */
+// convert: uint32_t -> OMX_INDEXTYPE
+inline OMX_INDEXTYPE toEnumIndexType(uint32_t t) {
+    return static_cast<OMX_INDEXTYPE>(t);
+}
+
+/**
+ * \brief Convert `IOMX::PortMode` to `PortMode`.
+ *
+ * \param[in] l The source `IOMX::PortMode`.
+ * \return The destination `PortMode`.
+ */
+// convert: IOMX::PortMode -> PortMode
+inline PortMode toHardwarePortMode(IOMX::PortMode l) {
+    return static_cast<PortMode>(l);
+}
+
+/**
+ * \brief Convert `PortMode` to `IOMX::PortMode`.
+ *
+ * \param[in] t The source `PortMode`.
+ * \return The destination `IOMX::PortMode`.
+ */
+// convert: PortMode -> IOMX::PortMode
+inline IOMX::PortMode toIOMXPortMode(PortMode t) {
+    return static_cast<IOMX::PortMode>(t);
+}
+
+/**
+ * \brief Convert `OMX_TICKS` to `uint64_t`.
+ *
+ * \param[in] l The source `OMX_TICKS`.
+ * \return The destination `uint64_t`.
+ */
+// convert: OMX_TICKS -> uint64_t
+inline uint64_t toRawTicks(OMX_TICKS l) {
+#ifndef OMX_SKIP64BIT
+    return static_cast<uint64_t>(l);
+#else
+    return static_cast<uint64_t>(l.nLowPart) |
+            static_cast<uint64_t>(l.nHighPart << 32);
+#endif
+}
+
+/**
+ * \brief Convert `uint64_t` to `OMX_TICKS`.
+ *
+ * \param[in] l The source `uint64_t`.
+ * \return The destination `OMX_TICKS`.
+ */
+// convert: uint64_t -> OMX_TICKS
+inline OMX_TICKS toOMXTicks(uint64_t t) {
+#ifndef OMX_SKIP64BIT
+    return static_cast<OMX_TICKS>(t);
+#else
+    return OMX_TICKS{
+            static_cast<uint32_t>(t & 0xFFFFFFFF),
+            static_cast<uint32_t>(t >> 32)};
+#endif
+}
+
+/**
+ * Conversion functions for types outside media
+ * ============================================
+ *
+ * Some objects in libui and libgui that were made to go through binder calls do
+ * not expose ways to read or write their fields to the public. To pass an
+ * object of this kind through the HIDL boundary, translation functions need to
+ * work around the access restriction by using the publicly available
+ * `flatten()` and `unflatten()` functions.
+ *
+ * All `flatten()` and `unflatten()` overloads follow the same convention as
+ * follows:
+ *
+ *     status_t flatten(ObjectType const& object,
+ *                      [OtherType const& other, ...]
+ *                      void*& buffer, size_t& size,
+ *                      int*& fds, size_t& numFds)
+ *
+ *     status_t unflatten(ObjectType* object,
+ *                        [OtherType* other, ...,]
+ *                        void*& buffer, size_t& size,
+ *                        int*& fds, size_t& numFds)
+ *
+ * The number of `other` parameters varies depending on the `ObjectType`. For
+ * example, in the process of unflattening an object that contains
+ * `hidl_handle`, `other` is needed to hold `native_handle_t` objects that will
+ * be created.
+ *
+ * The last four parameters always work the same way in all overloads of
+ * `flatten()` and `unflatten()`:
+ * - For `flatten()`, `buffer` is the pointer to the non-fd buffer to be filled,
+ *   `size` is the size (in bytes) of the non-fd buffer pointed to by `buffer`,
+ *   `fds` is the pointer to the fd buffer to be filled, and `numFds` is the
+ *   size (in ints) of the fd buffer pointed to by `fds`.
+ * - For `unflatten()`, `buffer` is the pointer to the non-fd buffer to be read
+ *   from, `size` is the size (in bytes) of the non-fd buffer pointed to by
+ *   `buffer`, `fds` is the pointer to the fd buffer to be read from, and
+ *   `numFds` is the size (in ints) of the fd buffer pointed to by `fds`.
+ * - After a successful call to `flatten()` or `unflatten()`, `buffer` and `fds`
+ *   will be advanced, while `size` and `numFds` will be decreased to reflect
+ *   how much storage/data of the two buffers (fd and non-fd) have been used.
+ * - After an unsuccessful call, the values of `buffer`, `size`, `fds` and
+ *   `numFds` are invalid.
+ *
+ * The return value of a successful `flatten()` or `unflatten()` call will be
+ * `OK` (also aliased as `NO_ERROR`). Any other values indicate a failure.
+ *
+ * For each object type that supports flattening, there will be two accompanying
+ * functions: `getFlattenedSize()` and `getFdCount()`. `getFlattenedSize()` will
+ * return the size of the non-fd buffer that the object will need for
+ * flattening. `getFdCount()` will return the size of the fd buffer that the
+ * object will need for flattening.
+ *
+ * The set of these four functions, `getFlattenedSize()`, `getFdCount()`,
+ * `flatten()` and `unflatten()`, are similar to functions of the same name in
+ * the abstract class `Flattenable`. The only difference is that functions in
+ * this file are not member functions of the object type. For example, we write
+ *
+ *     flatten(x, buffer, size, fds, numFds)
+ *
+ * instead of
+ *
+ *     x.flatten(buffer, size, fds, numFds)
+ *
+ * because we cannot modify the type of `x`.
+ *
+ * There is one exception to the naming convention: `hidl_handle` that
+ * represents a fence. The four functions for this "Fence" type have the word
+ * "Fence" attched to their names because the object type, which is
+ * `hidl_handle`, does not carry the special meaning that the object itself can
+ * only contain zero or one file descriptor.
+ */
+
+// Ref: frameworks/native/libs/ui/Fence.cpp
+
+/**
+ * \brief Return the size of the non-fd buffer required to flatten a fence.
+ *
+ * \param[in] fence The input fence of type `hidl_handle`.
+ * \return The required size of the flat buffer.
+ *
+ * The current version of this function always returns 4, which is the number of
+ * bytes required to store the number of file descriptors contained in the fd
+ * part of the flat buffer.
+ */
+inline size_t getFenceFlattenedSize(hidl_handle const& /* fence */) {
+    return 4;
+};
+
+/**
+ * \brief Return the number of file descriptors contained in a fence.
+ *
+ * \param[in] fence The input fence of type `hidl_handle`.
+ * \return `0` if \p fence does not contain a valid file descriptor, or `1`
+ * otherwise.
+ */
+inline size_t getFenceFdCount(hidl_handle const& fence) {
+    return native_handle_read_fd(fence) == -1 ? 0 : 1;
+}
+
+/**
+ * \brief Unflatten `Fence` to `hidl_handle`.
+ *
+ * \param[out] fence The destination `hidl_handle`.
+ * \param[out] nh The underlying native handle.
+ * \param[in,out] buffer The pointer to the flat non-fd buffer.
+ * \param[in,out] size The size of the flat non-fd buffer.
+ * \param[in,out] fds The pointer to the flat fd buffer.
+ * \param[in,out] numFds The size of the flat fd buffer.
+ * \return `NO_ERROR` on success; other value on failure.
+ *
+ * If the return value is `NO_ERROR`, \p nh will point to a newly created
+ * native handle, which needs to be deleted with `native_handle_delete()`
+ * afterwards.
+ */
+inline status_t unflattenFence(hidl_handle* fence, native_handle_t** nh,
+        void const*& buffer, size_t& size, int const*& fds, size_t& numFds) {
+    if (size < 4) {
+        return NO_MEMORY;
+    }
+
+    uint32_t numFdsInHandle;
+    FlattenableUtils::read(buffer, size, numFdsInHandle);
+
+    if (numFdsInHandle > 1) {
+        return BAD_VALUE;
+    }
+
+    if (numFds < numFdsInHandle) {
+        return NO_MEMORY;
+    }
+
+    if (numFdsInHandle) {
+        *nh = native_handle_create_from_fd(*fds);
+        if (*nh == nullptr) {
+            return NO_MEMORY;
+        }
+        *fence = *nh;
+        ++fds;
+        --numFds;
+    } else {
+        *nh = nullptr;
+        *fence = hidl_handle();
+    }
+
+    return NO_ERROR;
+}
+
+/**
+ * \brief Flatten `hidl_handle` as `Fence`.
+ *
+ * \param[in] t The source `hidl_handle`.
+ * \param[in,out] buffer The pointer to the flat non-fd buffer.
+ * \param[in,out] size The size of the flat non-fd buffer.
+ * \param[in,out] fds The pointer to the flat fd buffer.
+ * \param[in,out] numFds The size of the flat fd buffer.
+ * \return `NO_ERROR` on success; other value on failure.
+ */
+inline status_t flattenFence(hidl_handle const& fence,
+        void*& buffer, size_t& size, int*& fds, size_t& numFds) {
+    if (size < getFenceFlattenedSize(fence) ||
+            numFds < getFenceFdCount(fence)) {
+        return NO_MEMORY;
+    }
+    // Cast to uint32_t since the size of a size_t can vary between 32- and
+    // 64-bit processes
+    FlattenableUtils::write(buffer, size,
+            static_cast<uint32_t>(getFenceFdCount(fence)));
+    int fd = native_handle_read_fd(fence);
+    if (fd != -1) {
+        *fds = fd;
+        ++fds;
+        --numFds;
+    }
+    return NO_ERROR;
+}
+
+/**
+ * \brief Wrap `Fence` in `hidl_handle`.
+ *
+ * \param[out] t The wrapper of type `hidl_handle`.
+ * \param[out] nh The native handle pointed to by \p t.
+ * \param[in] l The source `Fence`.
+ *
+ * On success, \p nh will hold a newly created native handle, which must be
+ * deleted manually with `native_handle_delete()` afterwards.
+ */
+// wrap: Fence -> hidl_handle
+inline bool wrapAs(hidl_handle* t, native_handle_t** nh, Fence const& l) {
+    size_t const baseSize = l.getFlattenedSize();
+    std::unique_ptr<uint8_t[]> baseBuffer(
+            new (std::nothrow) uint8_t[baseSize]);
+    if (!baseBuffer) {
+        return false;
+    }
+
+    size_t const baseNumFds = l.getFdCount();
+    std::unique_ptr<int[]> baseFds(
+            new (std::nothrow) int[baseNumFds]);
+    if (!baseFds) {
+        return false;
+    }
+
+    void* buffer = static_cast<void*>(baseBuffer.get());
+    size_t size = baseSize;
+    int* fds = static_cast<int*>(baseFds.get());
+    size_t numFds = baseNumFds;
+    if (l.flatten(buffer, size, fds, numFds) != NO_ERROR) {
+        return false;
+    }
+
+    void const* constBuffer = static_cast<void const*>(baseBuffer.get());
+    size = baseSize;
+    int const* constFds = static_cast<int const*>(baseFds.get());
+    numFds = baseNumFds;
+    if (unflattenFence(t, nh, constBuffer, size, constFds, numFds)
+            != NO_ERROR) {
+        return false;
+    }
+
+    return true;
+}
+
+/**
+ * \brief Convert `hidl_handle` to `Fence`.
+ *
+ * \param[out] l The destination `Fence`. `l` must not have been used
+ * (`l->isValid()` must return `false`) before this function is called.
+ * \param[in] t The source `hidl_handle`.
+ *
+ * If \p t contains a valid file descriptor, it will be duplicated.
+ */
+// convert: hidl_handle -> Fence
+inline bool convertTo(Fence* l, hidl_handle const& t) {
+    int fd = native_handle_read_fd(t);
+    if (fd != -1) {
+        fd = dup(fd);
+        if (fd == -1) {
+            return false;
+        }
+    }
+    native_handle_t* nh = native_handle_create_from_fd(fd);
+    if (nh == nullptr) {
+        if (fd != -1) {
+            close(fd);
+        }
+        return false;
+    }
+
+    size_t const baseSize = getFenceFlattenedSize(t);
+    std::unique_ptr<uint8_t[]> baseBuffer(
+            new (std::nothrow) uint8_t[baseSize]);
+    if (!baseBuffer) {
+        native_handle_delete(nh);
+        return false;
+    }
+
+    size_t const baseNumFds = getFenceFdCount(t);
+    std::unique_ptr<int[]> baseFds(
+            new (std::nothrow) int[baseNumFds]);
+    if (!baseFds) {
+        native_handle_delete(nh);
+        return false;
+    }
+
+    void* buffer = static_cast<void*>(baseBuffer.get());
+    size_t size = baseSize;
+    int* fds = static_cast<int*>(baseFds.get());
+    size_t numFds = baseNumFds;
+    if (flattenFence(hidl_handle(nh), buffer, size, fds, numFds) != NO_ERROR) {
+        native_handle_delete(nh);
+        return false;
+    }
+    native_handle_delete(nh);
+
+    void const* constBuffer = static_cast<void const*>(baseBuffer.get());
+    size = baseSize;
+    int const* constFds = static_cast<int const*>(baseFds.get());
+    numFds = baseNumFds;
+    if (l->unflatten(constBuffer, size, constFds, numFds) != NO_ERROR) {
+        return false;
+    }
+
+    return true;
+}
+
+// Ref: frameworks/native/libs/ui/FenceTime.cpp: FenceTime::Snapshot
+
+/**
+ * \brief Return the size of the non-fd buffer required to flatten
+ * `FenceTimeSnapshot`.
+ *
+ * \param[in] t The input `FenceTimeSnapshot`.
+ * \return The required size of the flat buffer.
+ */
+inline size_t getFlattenedSize(
+        IOmxBufferProducer::FenceTimeSnapshot const& t) {
+    constexpr size_t min = sizeof(t.state);
+    switch (t.state) {
+        case IOmxBufferProducer::FenceTimeSnapshot::State::EMPTY:
+            return min;
+        case IOmxBufferProducer::FenceTimeSnapshot::State::FENCE:
+            return min + getFenceFlattenedSize(t.fence);
+        case IOmxBufferProducer::FenceTimeSnapshot::State::SIGNAL_TIME:
+            return min + sizeof(
+                    ::android::FenceTime::Snapshot::signalTime);
+    }
+    return 0;
+}
+
+/**
+ * \brief Return the number of file descriptors contained in
+ * `FenceTimeSnapshot`.
+ *
+ * \param[in] t The input `FenceTimeSnapshot`.
+ * \return The number of file descriptors contained in \p snapshot.
+ */
+inline size_t getFdCount(
+        IOmxBufferProducer::FenceTimeSnapshot const& t) {
+    return t.state ==
+            IOmxBufferProducer::FenceTimeSnapshot::State::FENCE ?
+            getFenceFdCount(t.fence) : 0;
+}
+
+/**
+ * \brief Flatten `FenceTimeSnapshot`.
+ *
+ * \param[in] t The source `FenceTimeSnapshot`.
+ * \param[in,out] buffer The pointer to the flat non-fd buffer.
+ * \param[in,out] size The size of the flat non-fd buffer.
+ * \param[in,out] fds The pointer to the flat fd buffer.
+ * \param[in,out] numFds The size of the flat fd buffer.
+ * \return `NO_ERROR` on success; other value on failure.
+ *
+ * This function will duplicate the file descriptor in `t.fence` if `t.state ==
+ * FENCE`.
+ */
+inline status_t flatten(IOmxBufferProducer::FenceTimeSnapshot const& t,
+        void*& buffer, size_t& size, int*& fds, size_t& numFds) {
+    if (size < getFlattenedSize(t)) {
+        return NO_MEMORY;
+    }
+
+    switch (t.state) {
+        case IOmxBufferProducer::FenceTimeSnapshot::State::EMPTY:
+            FlattenableUtils::write(buffer, size,
+                    ::android::FenceTime::Snapshot::State::EMPTY);
+            return NO_ERROR;
+        case IOmxBufferProducer::FenceTimeSnapshot::State::FENCE:
+            FlattenableUtils::write(buffer, size,
+                    ::android::FenceTime::Snapshot::State::FENCE);
+            return flattenFence(t.fence, buffer, size, fds, numFds);
+        case IOmxBufferProducer::FenceTimeSnapshot::State::SIGNAL_TIME:
+            FlattenableUtils::write(buffer, size,
+                    ::android::FenceTime::Snapshot::State::SIGNAL_TIME);
+            FlattenableUtils::write(buffer, size, t.signalTimeNs);
+            return NO_ERROR;
+    }
+    return NO_ERROR;
+}
+
+/**
+ * \brief Unflatten `FenceTimeSnapshot`.
+ *
+ * \param[out] t The destination `FenceTimeSnapshot`.
+ * \param[out] nh The underlying native handle.
+ * \param[in,out] buffer The pointer to the flat non-fd buffer.
+ * \param[in,out] size The size of the flat non-fd buffer.
+ * \param[in,out] fds The pointer to the flat fd buffer.
+ * \param[in,out] numFds The size of the flat fd buffer.
+ * \return `NO_ERROR` on success; other value on failure.
+ *
+ * If the return value is `NO_ERROR` and the constructed snapshot contains a
+ * file descriptor, \p nh will be created to hold that file descriptor. In this
+ * case, \p nh needs to be deleted with `native_handle_delete()` afterwards.
+ */
+inline status_t unflatten(
+        IOmxBufferProducer::FenceTimeSnapshot* t, native_handle_t** nh,
+        void const*& buffer, size_t& size, int const*& fds, size_t& numFds) {
+    if (size < sizeof(t->state)) {
+        return NO_MEMORY;
+    }
+
+    *nh = nullptr;
+    ::android::FenceTime::Snapshot::State state;
+    FlattenableUtils::read(buffer, size, state);
+    switch (state) {
+        case ::android::FenceTime::Snapshot::State::EMPTY:
+            t->state = IOmxBufferProducer::FenceTimeSnapshot::State::EMPTY;
+            return NO_ERROR;
+        case ::android::FenceTime::Snapshot::State::FENCE:
+            t->state = IOmxBufferProducer::FenceTimeSnapshot::State::FENCE;
+            return unflattenFence(&t->fence, nh, buffer, size, fds, numFds);
+        case ::android::FenceTime::Snapshot::State::SIGNAL_TIME:
+            t->state = IOmxBufferProducer::FenceTimeSnapshot::State::SIGNAL_TIME;
+            if (size < sizeof(t->signalTimeNs)) {
+                return NO_MEMORY;
+            }
+            FlattenableUtils::read(buffer, size, t->signalTimeNs);
+            return NO_ERROR;
+    }
+    return NO_ERROR;
+}
+
+// Ref: frameworks/native/libs/gui/FrameTimestamps.cpp: FrameEventsDelta
+
+/**
+ * \brief Return a lower bound on the size of the non-fd buffer required to
+ * flatten `FrameEventsDelta`.
+ *
+ * \param[in] t The input `FrameEventsDelta`.
+ * \return A lower bound on the size of the flat buffer.
+ */
+constexpr size_t minFlattenedSize(
+        IOmxBufferProducer::FrameEventsDelta const& /* t */) {
+    return sizeof(uint64_t) + // mFrameNumber
+            sizeof(uint8_t) + // mIndex
+            sizeof(uint8_t) + // mAddPostCompositeCalled
+            sizeof(uint8_t) + // mAddRetireCalled
+            sizeof(uint8_t) + // mAddReleaseCalled
+            sizeof(nsecs_t) + // mPostedTime
+            sizeof(nsecs_t) + // mRequestedPresentTime
+            sizeof(nsecs_t) + // mLatchTime
+            sizeof(nsecs_t) + // mFirstRefreshStartTime
+            sizeof(nsecs_t); // mLastRefreshStartTime
+}
+
+/**
+ * \brief Return the size of the non-fd buffer required to flatten
+ * `FrameEventsDelta`.
+ *
+ * \param[in] t The input `FrameEventsDelta`.
+ * \return The required size of the flat buffer.
+ */
+inline size_t getFlattenedSize(
+        IOmxBufferProducer::FrameEventsDelta const& t) {
+    return minFlattenedSize(t) +
+            getFlattenedSize(t.gpuCompositionDoneFence) +
+            getFlattenedSize(t.displayPresentFence) +
+            getFlattenedSize(t.displayRetireFence) +
+            getFlattenedSize(t.releaseFence);
+};
+
+/**
+ * \brief Return the number of file descriptors contained in
+ * `FrameEventsDelta`.
+ *
+ * \param[in] t The input `FrameEventsDelta`.
+ * \return The number of file descriptors contained in \p t.
+ */
+inline size_t getFdCount(
+        IOmxBufferProducer::FrameEventsDelta const& t) {
+    return getFdCount(t.gpuCompositionDoneFence) +
+            getFdCount(t.displayPresentFence) +
+            getFdCount(t.displayRetireFence) +
+            getFdCount(t.releaseFence);
+};
+
+/**
+ * \brief Unflatten `FrameEventsDelta`.
+ *
+ * \param[out] t The destination `FrameEventsDelta`.
+ * \param[out] nh The underlying array of native handles.
+ * \param[in,out] buffer The pointer to the flat non-fd buffer.
+ * \param[in,out] size The size of the flat non-fd buffer.
+ * \param[in,out] fds The pointer to the flat fd buffer.
+ * \param[in,out] numFds The size of the flat fd buffer.
+ * \return `NO_ERROR` on success; other value on failure.
+ *
+ * If the return value is `NO_ERROR`, \p nh will have length 4, and it will be
+ * populated with `nullptr` or newly created handles. Each non-null slot in \p
+ * nh will need to be deleted manually with `native_handle_delete()`.
+ */
+inline status_t unflatten(IOmxBufferProducer::FrameEventsDelta* t,
+        std::vector<native_handle_t*>* nh,
+        void const*& buffer, size_t& size, int const*& fds, size_t& numFds) {
+    if (size < minFlattenedSize(*t)) {
+        return NO_MEMORY;
+    }
+    FlattenableUtils::read(buffer, size, t->frameNumber);
+
+    // These were written as uint8_t for alignment.
+    uint8_t temp = 0;
+    FlattenableUtils::read(buffer, size, temp);
+    size_t index = static_cast<size_t>(temp);
+    if (index >= ::android::FrameEventHistory::MAX_FRAME_HISTORY) {
+        return BAD_VALUE;
+    }
+    t->index = static_cast<uint32_t>(index);
+
+    FlattenableUtils::read(buffer, size, temp);
+    t->addPostCompositeCalled = static_cast<bool>(temp);
+    FlattenableUtils::read(buffer, size, temp);
+    t->addRetireCalled = static_cast<bool>(temp);
+    FlattenableUtils::read(buffer, size, temp);
+    t->addReleaseCalled = static_cast<bool>(temp);
+
+    FlattenableUtils::read(buffer, size, t->postedTimeNs);
+    FlattenableUtils::read(buffer, size, t->requestedPresentTimeNs);
+    FlattenableUtils::read(buffer, size, t->latchTimeNs);
+    FlattenableUtils::read(buffer, size, t->firstRefreshStartTimeNs);
+    FlattenableUtils::read(buffer, size, t->lastRefreshStartTimeNs);
+    FlattenableUtils::read(buffer, size, t->dequeueReadyTime);
+
+    // Fences
+    IOmxBufferProducer::FenceTimeSnapshot* tSnapshot[4];
+    tSnapshot[0] = &t->gpuCompositionDoneFence;
+    tSnapshot[1] = &t->displayPresentFence;
+    tSnapshot[2] = &t->displayRetireFence;
+    tSnapshot[3] = &t->releaseFence;
+    nh->resize(4);
+    for (size_t snapshotIndex = 0; snapshotIndex < 4; ++snapshotIndex) {
+        status_t status = unflatten(
+                tSnapshot[snapshotIndex], &((*nh)[snapshotIndex]),
+                buffer, size, fds, numFds);
+        if (status != NO_ERROR) {
+            while (snapshotIndex > 0) {
+                --snapshotIndex;
+                if ((*nh)[snapshotIndex] != nullptr) {
+                    native_handle_delete((*nh)[snapshotIndex]);
+                }
+            }
+            return status;
+        }
+    }
+    return NO_ERROR;
+}
+
+/**
+ * \brief Flatten `FrameEventsDelta`.
+ *
+ * \param[in] t The source `FrameEventsDelta`.
+ * \param[in,out] buffer The pointer to the flat non-fd buffer.
+ * \param[in,out] size The size of the flat non-fd buffer.
+ * \param[in,out] fds The pointer to the flat fd buffer.
+ * \param[in,out] numFds The size of the flat fd buffer.
+ * \return `NO_ERROR` on success; other value on failure.
+ *
+ * This function will duplicate file descriptors contained in \p t.
+ */
+// Ref: frameworks/native/libs/gui/FrameTimestamp.cpp:
+//      FrameEventsDelta::flatten
+inline status_t flatten(IOmxBufferProducer::FrameEventsDelta const& t,
+        void*& buffer, size_t& size, int*& fds, size_t numFds) {
+    // Check that t.index is within a valid range.
+    if (t.index >= static_cast<uint32_t>(FrameEventHistory::MAX_FRAME_HISTORY)
+            || t.index > std::numeric_limits<uint8_t>::max()) {
+        return BAD_VALUE;
+    }
+
+    FlattenableUtils::write(buffer, size, t.frameNumber);
+
+    // These are static_cast to uint8_t for alignment.
+    FlattenableUtils::write(buffer, size, static_cast<uint8_t>(t.index));
+    FlattenableUtils::write(
+            buffer, size, static_cast<uint8_t>(t.addPostCompositeCalled));
+    FlattenableUtils::write(
+            buffer, size, static_cast<uint8_t>(t.addRetireCalled));
+    FlattenableUtils::write(
+            buffer, size, static_cast<uint8_t>(t.addReleaseCalled));
+
+    FlattenableUtils::write(buffer, size, t.postedTimeNs);
+    FlattenableUtils::write(buffer, size, t.requestedPresentTimeNs);
+    FlattenableUtils::write(buffer, size, t.latchTimeNs);
+    FlattenableUtils::write(buffer, size, t.firstRefreshStartTimeNs);
+    FlattenableUtils::write(buffer, size, t.lastRefreshStartTimeNs);
+    FlattenableUtils::write(buffer, size, t.dequeueReadyTime);
+
+    // Fences
+    IOmxBufferProducer::FenceTimeSnapshot const* tSnapshot[4];
+    tSnapshot[0] = &t.gpuCompositionDoneFence;
+    tSnapshot[1] = &t.displayPresentFence;
+    tSnapshot[2] = &t.displayRetireFence;
+    tSnapshot[3] = &t.releaseFence;
+    for (size_t snapshotIndex = 0; snapshotIndex < 4; ++snapshotIndex) {
+        status_t status = flatten(
+                *(tSnapshot[snapshotIndex]), buffer, size, fds, numFds);
+        if (status != NO_ERROR) {
+            return status;
+        }
+    }
+    return NO_ERROR;
+}
+
+// Ref: frameworks/native/libs/gui/FrameTimestamps.cpp: FrameEventHistoryDelta
+
+/**
+ * \brief Return the size of the non-fd buffer required to flatten
+ * `IOmxBufferProducer::FrameEventHistoryDelta`.
+ *
+ * \param[in] t The input `IOmxBufferProducer::FrameEventHistoryDelta`.
+ * \return The required size of the flat buffer.
+ */
+inline size_t getFlattenedSize(
+        IOmxBufferProducer::FrameEventHistoryDelta const& t) {
+    size_t size = 4 + // mDeltas.size()
+            sizeof(t.compositorTiming);
+    for (size_t i = 0; i < t.deltas.size(); ++i) {
+        size += getFlattenedSize(t.deltas[i]);
+    }
+    return size;
+}
+
+/**
+ * \brief Return the number of file descriptors contained in
+ * `IOmxBufferProducer::FrameEventHistoryDelta`.
+ *
+ * \param[in] t The input `IOmxBufferProducer::FrameEventHistoryDelta`.
+ * \return The number of file descriptors contained in \p t.
+ */
+inline size_t getFdCount(
+        IOmxBufferProducer::FrameEventHistoryDelta const& t) {
+    size_t numFds = 0;
+    for (size_t i = 0; i < t.deltas.size(); ++i) {
+        numFds += getFdCount(t.deltas[i]);
+    }
+    return numFds;
+}
+
+/**
+ * \brief Unflatten `FrameEventHistoryDelta`.
+ *
+ * \param[out] t The destination `FrameEventHistoryDelta`.
+ * \param[out] nh The underlying array of arrays of native handles.
+ * \param[in,out] buffer The pointer to the flat non-fd buffer.
+ * \param[in,out] size The size of the flat non-fd buffer.
+ * \param[in,out] fds The pointer to the flat fd buffer.
+ * \param[in,out] numFds The size of the flat fd buffer.
+ * \return `NO_ERROR` on success; other value on failure.
+ *
+ * If the return value is `NO_ERROR`, \p nh will be populated with `nullptr` or
+ * newly created handles. The second dimension of \p nh will be 4. Each non-null
+ * slot in \p nh will need to be deleted manually with `native_handle_delete()`.
+ */
+inline status_t unflatten(
+        IOmxBufferProducer::FrameEventHistoryDelta* t,
+        std::vector<std::vector<native_handle_t*> >* nh,
+        void const*& buffer, size_t& size, int const*& fds, size_t& numFds) {
+    if (size < 4) {
+        return NO_MEMORY;
+    }
+
+    FlattenableUtils::read(buffer, size, t->compositorTiming);
+
+    uint32_t deltaCount = 0;
+    FlattenableUtils::read(buffer, size, deltaCount);
+    if (static_cast<size_t>(deltaCount) >
+            ::android::FrameEventHistory::MAX_FRAME_HISTORY) {
+        return BAD_VALUE;
+    }
+    t->deltas.resize(deltaCount);
+    nh->resize(deltaCount);
+    for (size_t deltaIndex = 0; deltaIndex < deltaCount; ++deltaIndex) {
+        status_t status = unflatten(
+                &(t->deltas[deltaIndex]), &((*nh)[deltaIndex]),
+                buffer, size, fds, numFds);
+        if (status != NO_ERROR) {
+            return status;
+        }
+    }
+    return NO_ERROR;
+}
+
+/**
+ * \brief Flatten `FrameEventHistoryDelta`.
+ *
+ * \param[in] t The source `FrameEventHistoryDelta`.
+ * \param[in,out] buffer The pointer to the flat non-fd buffer.
+ * \param[in,out] size The size of the flat non-fd buffer.
+ * \param[in,out] fds The pointer to the flat fd buffer.
+ * \param[in,out] numFds The size of the flat fd buffer.
+ * \return `NO_ERROR` on success; other value on failure.
+ *
+ * This function will duplicate file descriptors contained in \p t.
+ */
+inline status_t flatten(
+        IOmxBufferProducer::FrameEventHistoryDelta const& t,
+        void*& buffer, size_t& size, int*& fds, size_t& numFds) {
+    if (t.deltas.size() > ::android::FrameEventHistory::MAX_FRAME_HISTORY) {
+        return BAD_VALUE;
+    }
+    if (size < getFlattenedSize(t)) {
+        return NO_MEMORY;
+    }
+
+    FlattenableUtils::write(buffer, size, t.compositorTiming);
+
+    FlattenableUtils::write(buffer, size, static_cast<uint32_t>(t.deltas.size()));
+    for (size_t deltaIndex = 0; deltaIndex < t.deltas.size(); ++deltaIndex) {
+        status_t status = flatten(t.deltas[deltaIndex], buffer, size, fds, numFds);
+        if (status != NO_ERROR) {
+            return status;
+        }
+    }
+    return NO_ERROR;
+}
+
+/**
+ * \brief Wrap `::android::FrameEventHistoryData` in
+ * `IOmxBufferProducer::FrameEventHistoryDelta`.
+ *
+ * \param[out] t The wrapper of type
+ * `IOmxBufferProducer::FrameEventHistoryDelta`.
+ * \param[out] nh The array of array of native handles that are referred to by
+ * members of \p t.
+ * \param[in] l The source `::android::FrameEventHistoryDelta`.
+ *
+ * On success, each member of \p nh will be either `nullptr` or a newly created
+ * native handle. All the non-`nullptr` elements must be deleted individually
+ * with `native_handle_delete()`.
+ */
+inline bool wrapAs(IOmxBufferProducer::FrameEventHistoryDelta* t,
+        std::vector<std::vector<native_handle_t*> >* nh,
+        ::android::FrameEventHistoryDelta const& l) {
+
+    size_t const baseSize = l.getFlattenedSize();
+    std::unique_ptr<uint8_t[]> baseBuffer(
+            new (std::nothrow) uint8_t[baseSize]);
+    if (!baseBuffer) {
+        return false;
+    }
+
+    size_t const baseNumFds = l.getFdCount();
+    std::unique_ptr<int[]> baseFds(
+            new (std::nothrow) int[baseNumFds]);
+    if (!baseFds) {
+        return false;
+    }
+
+    void* buffer = static_cast<void*>(baseBuffer.get());
+    size_t size = baseSize;
+    int* fds = baseFds.get();
+    size_t numFds = baseNumFds;
+    if (l.flatten(buffer, size, fds, numFds) != NO_ERROR) {
+        return false;
+    }
+
+    void const* constBuffer = static_cast<void const*>(baseBuffer.get());
+    size = baseSize;
+    int const* constFds = static_cast<int const*>(baseFds.get());
+    numFds = baseNumFds;
+    if (unflatten(t, nh, constBuffer, size, constFds, numFds) != NO_ERROR) {
+        return false;
+    }
+
+    return true;
+}
+
+/**
+ * \brief Convert `IOmxBufferProducer::FrameEventHistoryDelta` to
+ * `::android::FrameEventHistoryDelta`.
+ *
+ * \param[out] l The destination `::android::FrameEventHistoryDelta`.
+ * \param[in] t The source `IOmxBufferProducer::FrameEventHistoryDelta`.
+ *
+ * This function will duplicate all file descriptors contained in \p t.
+ */
+inline bool convertTo(
+        ::android::FrameEventHistoryDelta* l,
+        IOmxBufferProducer::FrameEventHistoryDelta const& t) {
+
+    size_t const baseSize = getFlattenedSize(t);
+    std::unique_ptr<uint8_t[]> baseBuffer(
+            new (std::nothrow) uint8_t[baseSize]);
+    if (!baseBuffer) {
+        return false;
+    }
+
+    size_t const baseNumFds = getFdCount(t);
+    std::unique_ptr<int[]> baseFds(
+            new (std::nothrow) int[baseNumFds]);
+    if (!baseFds) {
+        return false;
+    }
+
+    void* buffer = static_cast<void*>(baseBuffer.get());
+    size_t size = baseSize;
+    int* fds = static_cast<int*>(baseFds.get());
+    size_t numFds = baseNumFds;
+    if (flatten(t, buffer, size, fds, numFds) != NO_ERROR) {
+        return false;
+    }
+
+    void const* constBuffer = static_cast<void const*>(baseBuffer.get());
+    size = baseSize;
+    int const* constFds = static_cast<int const*>(baseFds.get());
+    numFds = baseNumFds;
+    if (l->unflatten(constBuffer, size, constFds, numFds) != NO_ERROR) {
+        return false;
+    }
+
+    return true;
+}
+
+// Ref: frameworks/native/libs/ui/Region.cpp
+
+/**
+ * \brief Return the size of the buffer required to flatten `Region`.
+ *
+ * \param[in] t The input `Region`.
+ * \return The required size of the flat buffer.
+ */
+inline size_t getFlattenedSize(Region const& t) {
+    return sizeof(uint32_t) + t.size() * sizeof(::android::Rect);
+}
+
+/**
+ * \brief Unflatten `Region`.
+ *
+ * \param[out] t The destination `Region`.
+ * \param[in,out] buffer The pointer to the flat buffer.
+ * \param[in,out] size The size of the flat buffer.
+ * \return `NO_ERROR` on success; other value on failure.
+ */
+inline status_t unflatten(Region* t, void const*& buffer, size_t& size) {
+    if (size < sizeof(uint32_t)) {
+        return NO_MEMORY;
+    }
+
+    uint32_t numRects = 0;
+    FlattenableUtils::read(buffer, size, numRects);
+    if (size < numRects * sizeof(Rect)) {
+        return NO_MEMORY;
+    }
+    if (numRects > (UINT32_MAX / sizeof(Rect))) {
+        return NO_MEMORY;
+    }
+
+    t->resize(numRects);
+    for (size_t r = 0; r < numRects; ++r) {
+        ::android::Rect rect(::android::Rect::EMPTY_RECT);
+        status_t status = rect.unflatten(buffer, size);
+        if (status != NO_ERROR) {
+            return status;
+        }
+        FlattenableUtils::advance(buffer, size, sizeof(rect));
+        (*t)[r] = Rect{
+                static_cast<int32_t>(rect.left),
+                static_cast<int32_t>(rect.top),
+                static_cast<int32_t>(rect.right),
+                static_cast<int32_t>(rect.bottom)};
+    }
+    return NO_ERROR;
+}
+
+/**
+ * \brief Flatten `Region`.
+ *
+ * \param[in] t The source `Region`.
+ * \param[in,out] buffer The pointer to the flat buffer.
+ * \param[in,out] size The size of the flat buffer.
+ * \return `NO_ERROR` on success; other value on failure.
+ */
+inline status_t flatten(Region const& t, void*& buffer, size_t& size) {
+    if (size < getFlattenedSize(t)) {
+        return NO_MEMORY;
+    }
+
+    FlattenableUtils::write(buffer, size, static_cast<uint32_t>(t.size()));
+    for (size_t r = 0; r < t.size(); ++r) {
+        ::android::Rect rect(
+                static_cast<int32_t>(t[r].left),
+                static_cast<int32_t>(t[r].top),
+                static_cast<int32_t>(t[r].right),
+                static_cast<int32_t>(t[r].bottom));
+        status_t status = rect.flatten(buffer, size);
+        if (status != NO_ERROR) {
+            return status;
+        }
+        FlattenableUtils::advance(buffer, size, sizeof(rect));
+    }
+    return NO_ERROR;
+}
+
+/**
+ * \brief Convert `::android::Region` to `Region`.
+ *
+ * \param[out] t The destination `Region`.
+ * \param[in] l The source `::android::Region`.
+ */
+// convert: ::android::Region -> Region
+inline bool convertTo(Region* t, ::android::Region const& l) {
+    size_t const baseSize = l.getFlattenedSize();
+    std::unique_ptr<uint8_t[]> baseBuffer(
+            new (std::nothrow) uint8_t[baseSize]);
+    if (!baseBuffer) {
+        return false;
+    }
+
+    void* buffer = static_cast<void*>(baseBuffer.get());
+    size_t size = baseSize;
+    if (l.flatten(buffer, size) != NO_ERROR) {
+        return false;
+    }
+
+    void const* constBuffer = static_cast<void const*>(baseBuffer.get());
+    size = baseSize;
+    if (unflatten(t, constBuffer, size) != NO_ERROR) {
+        return false;
+    }
+
+    return true;
+}
+
+/**
+ * \brief Convert `Region` to `::android::Region`.
+ *
+ * \param[out] l The destination `::android::Region`.
+ * \param[in] t The source `Region`.
+ */
+// convert: Region -> ::android::Region
+inline bool convertTo(::android::Region* l, Region const& t) {
+    size_t const baseSize = getFlattenedSize(t);
+    std::unique_ptr<uint8_t[]> baseBuffer(
+            new (std::nothrow) uint8_t[baseSize]);
+    if (!baseBuffer) {
+        return false;
+    }
+
+    void* buffer = static_cast<void*>(baseBuffer.get());
+    size_t size = baseSize;
+    if (flatten(t, buffer, size) != NO_ERROR) {
+        return false;
+    }
+
+    void const* constBuffer = static_cast<void const*>(baseBuffer.get());
+    size = baseSize;
+    if (l->unflatten(constBuffer, size) != NO_ERROR) {
+        return false;
+    }
+
+    return true;
+}
+
+// Ref: frameworks/native/libs/gui/IGraphicBufferProducer.cpp:
+//      IGraphicBufferProducer::QueueBufferInput
+
+/**
+ * \brief Return a lower bound on the size of the buffer required to flatten
+ * `IOmxBufferProducer::QueueBufferInput`.
+ *
+ * \param[in] t The input `IOmxBufferProducer::QueueBufferInput`.
+ * \return A lower bound on the size of the flat buffer.
+ */
+constexpr size_t minFlattenedSize(
+        IOmxBufferProducer::QueueBufferInput const& /* t */) {
+    return sizeof(int64_t) + // timestamp
+            sizeof(int) + // isAutoTimestamp
+            sizeof(android_dataspace) + // dataSpace
+            sizeof(::android::Rect) + // crop
+            sizeof(int) + // scalingMode
+            sizeof(uint32_t) + // transform
+            sizeof(uint32_t) + // stickyTransform
+            sizeof(bool); // getFrameTimestamps
+}
+
+/**
+ * \brief Return the size of the buffer required to flatten
+ * `IOmxBufferProducer::QueueBufferInput`.
+ *
+ * \param[in] t The input `IOmxBufferProducer::QueueBufferInput`.
+ * \return The required size of the flat buffer.
+ */
+inline size_t getFlattenedSize(IOmxBufferProducer::QueueBufferInput const& t) {
+    return minFlattenedSize(t) +
+            getFenceFlattenedSize(t.fence) +
+            getFlattenedSize(t.surfaceDamage);
+}
+
+/**
+ * \brief Return the number of file descriptors contained in
+ * `IOmxBufferProducer::QueueBufferInput`.
+ *
+ * \param[in] t The input `IOmxBufferProducer::QueueBufferInput`.
+ * \return The number of file descriptors contained in \p t.
+ */
+inline size_t getFdCount(
+        IOmxBufferProducer::QueueBufferInput const& t) {
+    return getFenceFdCount(t.fence);
+}
+
+/**
+ * \brief Flatten `IOmxBufferProducer::QueueBufferInput`.
+ *
+ * \param[in] t The source `IOmxBufferProducer::QueueBufferInput`.
+ * \param[out] nh The native handle cloned from `t.fence`.
+ * \param[in,out] buffer The pointer to the flat non-fd buffer.
+ * \param[in,out] size The size of the flat non-fd buffer.
+ * \param[in,out] fds The pointer to the flat fd buffer.
+ * \param[in,out] numFds The size of the flat fd buffer.
+ * \return `NO_ERROR` on success; other value on failure.
+ *
+ * This function will duplicate the file descriptor in `t.fence`. */
+inline status_t flatten(IOmxBufferProducer::QueueBufferInput const& t,
+        native_handle_t** nh,
+        void*& buffer, size_t& size, int*& fds, size_t& numFds) {
+    if (size < getFlattenedSize(t)) {
+        return NO_MEMORY;
+    }
+
+    FlattenableUtils::write(buffer, size, t.timestamp);
+    FlattenableUtils::write(buffer, size, static_cast<int>(t.isAutoTimestamp));
+    FlattenableUtils::write(buffer, size,
+            static_cast<android_dataspace_t>(t.dataSpace));
+    FlattenableUtils::write(buffer, size, ::android::Rect(
+            static_cast<int32_t>(t.crop.left),
+            static_cast<int32_t>(t.crop.top),
+            static_cast<int32_t>(t.crop.right),
+            static_cast<int32_t>(t.crop.bottom)));
+    FlattenableUtils::write(buffer, size, static_cast<int>(t.scalingMode));
+    FlattenableUtils::write(buffer, size, t.transform);
+    FlattenableUtils::write(buffer, size, t.stickyTransform);
+    FlattenableUtils::write(buffer, size, t.getFrameTimestamps);
+
+    *nh = t.fence.getNativeHandle() == nullptr ?
+            nullptr : native_handle_clone(t.fence);
+    status_t status = flattenFence(hidl_handle(*nh), buffer, size, fds, numFds);
+    if (status != NO_ERROR) {
+        return status;
+    }
+    return flatten(t.surfaceDamage, buffer, size);
+}
+
+/**
+ * \brief Unflatten `IOmxBufferProducer::QueueBufferInput`.
+ *
+ * \param[out] t The destination `IOmxBufferProducer::QueueBufferInput`.
+ * \param[out] nh The underlying native handle for `t->fence`.
+ * \param[in,out] buffer The pointer to the flat non-fd buffer.
+ * \param[in,out] size The size of the flat non-fd buffer.
+ * \param[in,out] fds The pointer to the flat fd buffer.
+ * \param[in,out] numFds The size of the flat fd buffer.
+ * \return `NO_ERROR` on success; other value on failure.
+ *
+ * If the return value is `NO_ERROR` and `t->fence` contains a valid file
+ * descriptor, \p nh will be a newly created native handle holding that file
+ * descriptor. \p nh needs to be deleted with `native_handle_delete()`
+ * afterwards.
+ */
+inline status_t unflatten(
+        IOmxBufferProducer::QueueBufferInput* t, native_handle_t** nh,
+        void const*& buffer, size_t& size, int const*& fds, size_t& numFds) {
+    if (size < minFlattenedSize(*t)) {
+        return NO_MEMORY;
+    }
+
+    FlattenableUtils::read(buffer, size, t->timestamp);
+    int lIsAutoTimestamp;
+    FlattenableUtils::read(buffer, size, lIsAutoTimestamp);
+    t->isAutoTimestamp = static_cast<int32_t>(lIsAutoTimestamp);
+    android_dataspace_t lDataSpace;
+    FlattenableUtils::read(buffer, size, lDataSpace);
+    t->dataSpace = static_cast<Dataspace>(lDataSpace);
+    Rect lCrop;
+    FlattenableUtils::read(buffer, size, lCrop);
+    t->crop = Rect{
+            static_cast<int32_t>(lCrop.left),
+            static_cast<int32_t>(lCrop.top),
+            static_cast<int32_t>(lCrop.right),
+            static_cast<int32_t>(lCrop.bottom)};
+    int lScalingMode;
+    FlattenableUtils::read(buffer, size, lScalingMode);
+    t->scalingMode = static_cast<int32_t>(lScalingMode);
+    FlattenableUtils::read(buffer, size, t->transform);
+    FlattenableUtils::read(buffer, size, t->stickyTransform);
+    FlattenableUtils::read(buffer, size, t->getFrameTimestamps);
+
+    status_t status = unflattenFence(&(t->fence), nh,
+            buffer, size, fds, numFds);
+    if (status != NO_ERROR) {
+        return status;
+    }
+    return unflatten(&(t->surfaceDamage), buffer, size);
+}
+
+/**
+ * \brief Wrap `IGraphicBufferProducer::QueueBufferInput` in
+ * `IOmxBufferProducer::QueueBufferInput`.
+ *
+ * \param[out] t The wrapper of type
+ * `IOmxBufferProducer::QueueBufferInput`.
+ * \param[out] nh The underlying native handle for `t->fence`.
+ * \param[in] l The source `IGraphicBufferProducer::QueueBufferInput`.
+ *
+ * If the return value is `true` and `t->fence` contains a valid file
+ * descriptor, \p nh will be a newly created native handle holding that file
+ * descriptor. \p nh needs to be deleted with `native_handle_delete()`
+ * afterwards.
+ */
+inline bool wrapAs(
+        IOmxBufferProducer::QueueBufferInput* t,
+        native_handle_t** nh,
+        IGraphicBufferProducer::QueueBufferInput const& l) {
+
+    size_t const baseSize = l.getFlattenedSize();
+    std::unique_ptr<uint8_t[]> baseBuffer(
+            new (std::nothrow) uint8_t[baseSize]);
+    if (!baseBuffer) {
+        return false;
+    }
+
+    size_t const baseNumFds = l.getFdCount();
+    std::unique_ptr<int[]> baseFds(
+            new (std::nothrow) int[baseNumFds]);
+    if (!baseFds) {
+        return false;
+    }
+
+    void* buffer = static_cast<void*>(baseBuffer.get());
+    size_t size = baseSize;
+    int* fds = baseFds.get();
+    size_t numFds = baseNumFds;
+    if (l.flatten(buffer, size, fds, numFds) != NO_ERROR) {
+        return false;
+    }
+
+    void const* constBuffer = static_cast<void const*>(baseBuffer.get());
+    size = baseSize;
+    int const* constFds = static_cast<int const*>(baseFds.get());
+    numFds = baseNumFds;
+    if (unflatten(t, nh, constBuffer, size, constFds, numFds) != NO_ERROR) {
+        return false;
+    }
+
+    return true;
+}
+
+/**
+ * \brief Convert `IOmxBufferProducer::QueueBufferInput` to
+ * `IGraphicBufferProducer::QueueBufferInput`.
+ *
+ * \param[out] l The destination `IGraphicBufferProducer::QueueBufferInput`.
+ * \param[in] t The source `IOmxBufferProducer::QueueBufferInput`.
+ *
+ * If `t.fence` has a valid file descriptor, it will be duplicated.
+ */
+inline bool convertTo(
+        IGraphicBufferProducer::QueueBufferInput* l,
+        IOmxBufferProducer::QueueBufferInput const& t) {
+
+    size_t const baseSize = getFlattenedSize(t);
+    std::unique_ptr<uint8_t[]> baseBuffer(
+            new (std::nothrow) uint8_t[baseSize]);
+    if (!baseBuffer) {
+        return false;
+    }
+
+    size_t const baseNumFds = getFdCount(t);
+    std::unique_ptr<int[]> baseFds(
+            new (std::nothrow) int[baseNumFds]);
+    if (!baseFds) {
+        return false;
+    }
+
+    void* buffer = static_cast<void*>(baseBuffer.get());
+    size_t size = baseSize;
+    int* fds = baseFds.get();
+    size_t numFds = baseNumFds;
+    native_handle_t* nh;
+    if (flatten(t, &nh, buffer, size, fds, numFds) != NO_ERROR) {
+        return false;
+    }
+
+    void const* constBuffer = static_cast<void const*>(baseBuffer.get());
+    size = baseSize;
+    int const* constFds = static_cast<int const*>(baseFds.get());
+    numFds = baseNumFds;
+    if (l->unflatten(constBuffer, size, constFds, numFds) != NO_ERROR) {
+        native_handle_close(nh);
+        native_handle_delete(nh);
+        return false;
+    }
+
+    native_handle_delete(nh);
+    return true;
+}
+
+// Ref: frameworks/native/libs/gui/IGraphicBufferProducer.cpp:
+//      IGraphicBufferProducer::QueueBufferOutput
+
+/**
+ * \brief Wrap `IGraphicBufferProducer::QueueBufferOutput` in
+ * `IOmxBufferProducer::QueueBufferOutput`.
+ *
+ * \param[out] t The wrapper of type
+ * `IOmxBufferProducer::QueueBufferOutput`.
+ * \param[out] nh The array of array of native handles that are referred to by
+ * members of \p t.
+ * \param[in] l The source `IGraphicBufferProducer::QueueBufferOutput`.
+ *
+ * On success, each member of \p nh will be either `nullptr` or a newly created
+ * native handle. All the non-`nullptr` elements must be deleted individually
+ * with `native_handle_delete()`.
+ */
+// wrap: IGraphicBufferProducer::QueueBufferOutput ->
+// IOmxBufferProducer::QueueBufferOutput
+inline bool wrapAs(IOmxBufferProducer::QueueBufferOutput* t,
+        std::vector<std::vector<native_handle_t*> >* nh,
+        IGraphicBufferProducer::QueueBufferOutput const& l) {
+    if (!wrapAs(&(t->frameTimestamps), nh, l.frameTimestamps)) {
+        return false;
+    }
+    t->width = l.width;
+    t->height = l.height;
+    t->transformHint = l.transformHint;
+    t->numPendingBuffers = l.numPendingBuffers;
+    t->nextFrameNumber = l.nextFrameNumber;
+    t->bufferReplaced = l.bufferReplaced;
+    return true;
+}
+
+/**
+ * \brief Convert `IOmxBufferProducer::QueueBufferOutput` to
+ * `IGraphicBufferProducer::QueueBufferOutput`.
+ *
+ * \param[out] l The destination `IGraphicBufferProducer::QueueBufferOutput`.
+ * \param[in] t The source `IOmxBufferProducer::QueueBufferOutput`.
+ *
+ * This function will duplicate all file descriptors contained in \p t.
+ */
+// convert: IOmxBufferProducer::QueueBufferOutput ->
+// IGraphicBufferProducer::QueueBufferOutput
+inline bool convertTo(
+        IGraphicBufferProducer::QueueBufferOutput* l,
+        IOmxBufferProducer::QueueBufferOutput const& t) {
+    if (!convertTo(&(l->frameTimestamps), t.frameTimestamps)) {
+        return false;
+    }
+    l->width = t.width;
+    l->height = t.height;
+    l->transformHint = t.transformHint;
+    l->numPendingBuffers = t.numPendingBuffers;
+    l->nextFrameNumber = t.nextFrameNumber;
+    l->bufferReplaced = t.bufferReplaced;
+    return true;
+}
+
+/**
+ * \brief Convert `IGraphicBufferProducer::DisconnectMode` to
+ * `IOmxBufferProducer::DisconnectMode`.
+ *
+ * \param[in] l The source `IGraphicBufferProducer::DisconnectMode`.
+ * \return The corresponding `IOmxBufferProducer::DisconnectMode`.
+ */
+inline IOmxBufferProducer::DisconnectMode toOmxDisconnectMode(
+        IGraphicBufferProducer::DisconnectMode l) {
+    switch (l) {
+        case IGraphicBufferProducer::DisconnectMode::Api:
+            return IOmxBufferProducer::DisconnectMode::API;
+        case IGraphicBufferProducer::DisconnectMode::AllLocal:
+            return IOmxBufferProducer::DisconnectMode::ALL_LOCAL;
+    }
+    return IOmxBufferProducer::DisconnectMode::API;
+}
+
+/**
+ * \brief Convert `IOmxBufferProducer::DisconnectMode` to
+ * `IGraphicBufferProducer::DisconnectMode`.
+ *
+ * \param[in] l The source `IOmxBufferProducer::DisconnectMode`.
+ * \return The corresponding `IGraphicBufferProducer::DisconnectMode`.
+ */
+inline IGraphicBufferProducer::DisconnectMode toGuiDisconnectMode(
+        IOmxBufferProducer::DisconnectMode t) {
+    switch (t) {
+        case IOmxBufferProducer::DisconnectMode::API:
+            return IGraphicBufferProducer::DisconnectMode::Api;
+        case IOmxBufferProducer::DisconnectMode::ALL_LOCAL:
+            return IGraphicBufferProducer::DisconnectMode::AllLocal;
+    }
+    return IGraphicBufferProducer::DisconnectMode::Api;
+}
+
+}  // namespace implementation
+}  // namespace V1_0
+}  // namespace omx
+}  // namespace media
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_MEDIA_OMX_V1_0__CONVERSION_H
diff --git a/media/libstagefright/omx/hal/1.0/impl/Omx.cpp b/media/libstagefright/omx/hal/1.0/impl/Omx.cpp
new file mode 100644
index 0000000..0ef7c8c
--- /dev/null
+++ b/media/libstagefright/omx/hal/1.0/impl/Omx.cpp
@@ -0,0 +1,211 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <ios>
+#include <list>
+
+#include <android-base/logging.h>
+#include <gui/IGraphicBufferProducer.h>
+#include <OMX_Core.h>
+#include <OMX_AsString.h>
+
+#include "../../../OMXUtils.h"
+#include "../../../OMXMaster.h"
+#include "../../../GraphicBufferSource.h"
+
+#include "WOmxNode.h"
+#include "WOmxObserver.h"
+#include "WOmxBufferProducer.h"
+#include "WGraphicBufferSource.h"
+#include "Conversion.h"
+
+#include "Omx.h"
+
+namespace android {
+namespace hardware {
+namespace media {
+namespace omx {
+namespace V1_0 {
+namespace implementation {
+
+constexpr size_t kMaxNodeInstances = (1 << 16);
+
+Omx::Omx() : mMaster(new OMXMaster()) {
+}
+
+Omx::~Omx() {
+    delete mMaster;
+}
+
+Return<void> Omx::listNodes(listNodes_cb _hidl_cb) {
+    std::list<::android::IOMX::ComponentInfo> list;
+    OMX_U32 index = 0;
+    char componentName[256];
+    for (OMX_U32 index = 0;
+            mMaster->enumerateComponents(
+            componentName, sizeof(componentName), index) == OMX_ErrorNone;
+            ++index) {
+        list.push_back(::android::IOMX::ComponentInfo());
+        ::android::IOMX::ComponentInfo& info = list.back();
+        info.mName = componentName;
+        ::android::Vector<::android::String8> roles;
+        OMX_ERRORTYPE err =
+                mMaster->getRolesOfComponent(componentName, &roles);
+        if (err == OMX_ErrorNone) {
+            for (OMX_U32 i = 0; i < roles.size(); ++i) {
+                info.mRoles.push_back(roles[i]);
+            }
+        }
+    }
+
+    hidl_vec<ComponentInfo> tList;
+    tList.resize(list.size());
+    size_t i = 0;
+    for (auto const& info : list) {
+        convertTo(&(tList[i++]), info);
+    }
+    _hidl_cb(toStatus(OK), tList);
+    return Void();
+}
+
+Return<void> Omx::allocateNode(
+        const hidl_string& name,
+        const sp<IOmxObserver>& observer,
+        allocateNode_cb _hidl_cb) {
+
+    using ::android::IOMXNode;
+    using ::android::IOMXObserver;
+
+    Mutex::Autolock autoLock(mLock);
+    if (mLiveNodes.size() == kMaxNodeInstances) {
+        _hidl_cb(toStatus(NO_MEMORY), nullptr);
+        return Void();
+    }
+
+    sp<OMXNodeInstance> instance = new OMXNodeInstance(
+            this, new LWOmxObserver(observer), name);
+
+    OMX_COMPONENTTYPE *handle;
+    OMX_ERRORTYPE err = mMaster->makeComponentInstance(
+            name, &OMXNodeInstance::kCallbacks,
+            instance.get(), &handle);
+
+    if (err != OMX_ErrorNone) {
+        LOG(ERROR) << "Failed to allocate omx component "
+                "'" << name.c_str() << "' "
+                " err=" << asString(err) <<
+                "(0x" << std::hex << unsigned(err) << ")";
+        _hidl_cb(toStatus(StatusFromOMXError(err)), nullptr);
+        return Void();
+    }
+    instance->setHandle(handle);
+
+    mLiveNodes.add(observer.get(), instance);
+    observer->linkToDeath(this, 0);
+    mNode2Observer.add(instance.get(), observer.get());
+
+    _hidl_cb(toStatus(OK), new TWOmxNode(instance));
+    return Void();
+}
+
+Return<void> Omx::createInputSurface(createInputSurface_cb _hidl_cb) {
+    sp<::android::IGraphicBufferProducer> bufferProducer;
+
+    sp<GraphicBufferSource> graphicBufferSource = new GraphicBufferSource();
+    status_t err = graphicBufferSource->initCheck();
+    if (err != OK) {
+        LOG(ERROR) << "Failed to create persistent input surface: "
+                << strerror(-err) << " "
+                "(" << int(err) << ")";
+        _hidl_cb(toStatus(err), nullptr, nullptr);
+        return Void();
+    }
+    bufferProducer = graphicBufferSource->getIGraphicBufferProducer();
+
+    _hidl_cb(toStatus(OK),
+            new TWOmxBufferProducer(bufferProducer),
+            new TWGraphicBufferSource(graphicBufferSource));
+    return Void();
+}
+
+void Omx::serviceDied(uint64_t /* cookie */, wp<IBase> const& who) {
+    sp<OMXNodeInstance> instance;
+    {
+        Mutex::Autolock autoLock(mLock);
+
+        ssize_t index = mLiveNodes.indexOfKey(who);
+
+        if (index < 0) {
+            LOG(ERROR) << "b/27597103, nonexistent observer on serviceDied";
+            android_errorWriteLog(0x534e4554, "27597103");
+            return;
+        }
+
+        instance = mLiveNodes.editValueAt(index);
+        mLiveNodes.removeItemsAt(index);
+        mNode2Observer.removeItem(instance.get());
+    }
+    instance->onObserverDied();
+}
+
+status_t Omx::freeNode(sp<OMXNodeInstance> const& instance) {
+    if (instance == NULL) {
+        return OK;
+    }
+
+    wp<IBase> observer;
+    {
+        Mutex::Autolock autoLock(mLock);
+        ssize_t observerIndex = mNode2Observer.indexOfKey(instance.get());
+        if (observerIndex < 0) {
+            return OK;
+        }
+        observer = mNode2Observer.valueAt(observerIndex);
+        ssize_t nodeIndex = mLiveNodes.indexOfKey(observer);
+        if (nodeIndex < 0) {
+            return OK;
+        }
+        mNode2Observer.removeItemsAt(observerIndex);
+        mLiveNodes.removeItemsAt(nodeIndex);
+    }
+
+    {
+        sp<IBase> sObserver = observer.promote();
+        if (sObserver != nullptr) {
+            sObserver->unlinkToDeath(this);
+        }
+    }
+
+    OMX_ERRORTYPE err = OMX_ErrorNone;
+    if (instance->handle() != NULL) {
+        err = mMaster->destroyComponentInstance(
+                static_cast<OMX_COMPONENTTYPE*>(instance->handle()));
+    }
+    return StatusFromOMXError(err);
+}
+
+// Methods from ::android::hidl::base::V1_0::IBase follow.
+
+IOmx* HIDL_FETCH_IOmx(const char* /* name */) {
+    return new Omx();
+}
+
+}  // namespace implementation
+}  // namespace V1_0
+}  // namespace omx
+}  // namespace media
+}  // namespace hardware
+}  // namespace android
diff --git a/media/libstagefright/omx/hal/1.0/impl/Omx.h b/media/libstagefright/omx/hal/1.0/impl/Omx.h
new file mode 100644
index 0000000..3e9ea73
--- /dev/null
+++ b/media/libstagefright/omx/hal/1.0/impl/Omx.h
@@ -0,0 +1,90 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_MEDIA_OMX_V1_0_OMX_H
+#define ANDROID_HARDWARE_MEDIA_OMX_V1_0_OMX_H
+
+#include <hidl/MQDescriptor.h>
+#include <hidl/Status.h>
+
+#include "../../../../include/OMXNodeInstance.h"
+
+#include <android/hardware/media/omx/1.0/IOmx.h>
+
+namespace android {
+
+struct OMXMaster;
+
+namespace hardware {
+namespace media {
+namespace omx {
+namespace V1_0 {
+namespace implementation {
+
+using ::android::hardware::media::omx::V1_0::IOmx;
+using ::android::hardware::media::omx::V1_0::IOmxNode;
+using ::android::hardware::media::omx::V1_0::IOmxObserver;
+using ::android::hardware::media::omx::V1_0::Status;
+using ::android::hidl::base::V1_0::IBase;
+using ::android::hardware::hidl_death_recipient;
+using ::android::hardware::hidl_array;
+using ::android::hardware::hidl_memory;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::sp;
+using ::android::wp;
+
+using ::android::OMXMaster;
+using ::android::OmxNodeOwner;
+using ::android::OMXNodeInstance;
+
+struct Omx : public IOmx, public hidl_death_recipient, public OmxNodeOwner {
+    Omx();
+    virtual ~Omx();
+
+    // Methods from IOmx
+    Return<void> listNodes(listNodes_cb _hidl_cb) override;
+    Return<void> allocateNode(
+            const hidl_string& name,
+            const sp<IOmxObserver>& observer,
+            allocateNode_cb _hidl_cb) override;
+    Return<void> createInputSurface(createInputSurface_cb _hidl_cb) override;
+
+    // Method from hidl_death_recipient
+    void serviceDied(uint64_t cookie, const wp<IBase>& who) override;
+
+    // Method from OmxNodeOwner
+    virtual status_t freeNode(sp<OMXNodeInstance> const& instance) override;
+
+protected:
+    OMXMaster* mMaster;
+    Mutex mLock;
+    KeyedVector<wp<IBase>, sp<OMXNodeInstance> > mLiveNodes;
+    KeyedVector<OMXNodeInstance*, wp<IBase> > mNode2Observer;
+};
+
+extern "C" IOmx* HIDL_FETCH_IOmx(const char* name);
+
+}  // namespace implementation
+}  // namespace V1_0
+}  // namespace omx
+}  // namespace media
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_MEDIA_OMX_V1_0_OMX_H
diff --git a/media/libstagefright/omx/hal/1.0/impl/WGraphicBufferSource.cpp b/media/libstagefright/omx/hal/1.0/impl/WGraphicBufferSource.cpp
new file mode 100644
index 0000000..3c2face
--- /dev/null
+++ b/media/libstagefright/omx/hal/1.0/impl/WGraphicBufferSource.cpp
@@ -0,0 +1,225 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "TWGraphicBufferSource"
+
+#include <android/hardware/media/omx/1.0/IOmxBufferSource.h>
+#include <android/hardware/media/omx/1.0/IOmxNode.h>
+#include <OMX_Component.h>
+#include <OMX_IndexExt.h>
+
+#include "omx/OMXUtils.h"
+#include "WGraphicBufferSource.h"
+#include "WOmxNode.h"
+#include "Conversion.h"
+
+namespace android {
+namespace hardware {
+namespace media {
+namespace omx {
+namespace V1_0 {
+namespace implementation {
+
+static const OMX_U32 kPortIndexInput = 0;
+
+struct TWGraphicBufferSource::TWOmxNodeWrapper : public IOmxNodeWrapper {
+    sp<IOmxNode> mOmxNode;
+
+    TWOmxNodeWrapper(const sp<IOmxNode> &omxNode): mOmxNode(omxNode) {
+    }
+
+    virtual status_t emptyBuffer(
+            int32_t bufferId, uint32_t flags,
+            const sp<GraphicBuffer> &buffer,
+            int64_t timestamp, int fenceFd) override {
+        CodecBuffer tBuffer;
+        native_handle_t* fenceNh = native_handle_create_from_fd(fenceFd);
+        status_t err = toStatusT(mOmxNode->emptyBuffer(
+              bufferId,
+              *wrapAs(&tBuffer, buffer),
+              flags,
+              toRawTicks(timestamp),
+              fenceNh));
+        native_handle_close(fenceNh);
+        native_handle_delete(fenceNh);
+        return err;
+    }
+
+    virtual void dispatchDataSpaceChanged(
+            int32_t dataSpace, int32_t aspects, int32_t pixelFormat) override {
+        Message tMsg;
+        tMsg.type = Message::Type::EVENT;
+        tMsg.fence = native_handle_create(0, 0);
+        tMsg.data.eventData.event = uint32_t(OMX_EventDataSpaceChanged);
+        tMsg.data.eventData.data1 = dataSpace;
+        tMsg.data.eventData.data2 = aspects;
+        tMsg.data.eventData.data3 = pixelFormat;
+        mOmxNode->dispatchMessage(tMsg);
+    }
+};
+
+struct TWGraphicBufferSource::TWOmxBufferSource : public IOmxBufferSource {
+    sp<GraphicBufferSource> mSource;
+
+    TWOmxBufferSource(const sp<GraphicBufferSource> &source): mSource(source) {
+    }
+
+    Return<void> onOmxExecuting() override {
+        mSource->onOmxExecuting();
+        return Void();
+    }
+
+    Return<void> onOmxIdle() override {
+        mSource->onOmxIdle();
+        return Void();
+    }
+
+    Return<void> onOmxLoaded() override {
+        mSource->onOmxLoaded();
+        return Void();
+    }
+
+    Return<void> onInputBufferAdded(uint32_t bufferId) override {
+        mSource->onInputBufferAdded(static_cast<int32_t>(bufferId));
+        return Void();
+    }
+
+    Return<void> onInputBufferEmptied(
+            uint32_t bufferId, hidl_handle const& tFence) override {
+        mSource->onInputBufferEmptied(
+                static_cast<int32_t>(bufferId),
+                native_handle_read_fd(tFence));
+        return Void();
+    }
+};
+
+// TWGraphicBufferSource
+TWGraphicBufferSource::TWGraphicBufferSource(
+        sp<GraphicBufferSource> const& base) :
+    mBase(base),
+    mOmxBufferSource(new TWOmxBufferSource(base)) {
+}
+
+Return<Status> TWGraphicBufferSource::configure(
+        const sp<IOmxNode>& omxNode, Dataspace dataspace) {
+    if (omxNode == NULL) {
+        return toStatus(BAD_VALUE);
+    }
+
+    // Do setInputSurface() first, the node will try to enable metadata
+    // mode on input, and does necessary error checking. If this fails,
+    // we can't use this input surface on the node.
+    Return<Status> err(omxNode->setInputSurface(mOmxBufferSource));
+    status_t fnStatus = toStatusT(err);
+    if (fnStatus != NO_ERROR) {
+        ALOGE("Unable to set input surface: %d", fnStatus);
+        return err;
+    }
+
+    // use consumer usage bits queried from encoder, but always add
+    // HW_VIDEO_ENCODER for backward compatibility.
+    uint32_t  consumerUsage;
+    void *_params = &consumerUsage;
+    uint8_t *params = static_cast<uint8_t*>(_params);
+    fnStatus = UNKNOWN_ERROR;
+    IOmxNode::getParameter_cb _hidl_cb(
+            [&fnStatus, &params](Status status, hidl_vec<uint8_t> const& outParams) {
+                fnStatus = toStatusT(status);
+                std::copy(
+                        outParams.data(),
+                        outParams.data() + outParams.size(),
+                        params);
+            });
+    omxNode->getParameter(
+            static_cast<uint32_t>(OMX_IndexParamConsumerUsageBits),
+            inHidlBytes(&consumerUsage, sizeof(consumerUsage)),
+            _hidl_cb);
+    if (fnStatus != OK) {
+        consumerUsage = 0;
+    }
+
+    OMX_PARAM_PORTDEFINITIONTYPE def;
+    InitOMXParams(&def);
+    def.nPortIndex = kPortIndexInput;
+
+    _params = &def;
+    params = static_cast<uint8_t*>(_params);
+    omxNode->getParameter(
+            static_cast<uint32_t>(OMX_IndexParamPortDefinition),
+            inHidlBytes(&def, sizeof(def)),
+            _hidl_cb);
+    if (fnStatus != NO_ERROR) {
+        ALOGE("Failed to get port definition: %d", fnStatus);
+        return toStatus(fnStatus);
+    }
+
+
+    return toStatus(mBase->configure(
+            new TWOmxNodeWrapper(omxNode),
+            toRawDataspace(dataspace),
+            def.nBufferCountActual,
+            def.format.video.nFrameWidth,
+            def.format.video.nFrameHeight,
+            consumerUsage));
+}
+
+Return<Status> TWGraphicBufferSource::setSuspend(
+        bool suspend, int64_t timeUs) {
+    return toStatus(mBase->setSuspend(suspend, timeUs));
+}
+
+Return<Status> TWGraphicBufferSource::setRepeatPreviousFrameDelayUs(
+        int64_t repeatAfterUs) {
+    return toStatus(mBase->setRepeatPreviousFrameDelayUs(repeatAfterUs));
+}
+
+Return<Status> TWGraphicBufferSource::setMaxFps(float maxFps) {
+    return toStatus(mBase->setMaxFps(maxFps));
+}
+
+Return<Status> TWGraphicBufferSource::setTimeLapseConfig(
+        int64_t timePerFrameUs, int64_t timePerCaptureUs) {
+    return toStatus(mBase->setTimeLapseConfig(timePerFrameUs, timePerCaptureUs));
+}
+
+Return<Status> TWGraphicBufferSource::setStartTimeUs(int64_t startTimeUs) {
+    return toStatus(mBase->setStartTimeUs(startTimeUs));
+}
+
+Return<Status> TWGraphicBufferSource::setStopTimeUs(int64_t stopTimeUs) {
+    return toStatus(mBase->setStopTimeUs(stopTimeUs));
+}
+
+Return<Status> TWGraphicBufferSource::setColorAspects(
+        const ColorAspects& aspects) {
+    return toStatus(mBase->setColorAspects(toCompactColorAspects(aspects)));
+}
+
+Return<Status> TWGraphicBufferSource::setTimeOffsetUs(int64_t timeOffsetUs) {
+    return toStatus(mBase->setTimeOffsetUs(timeOffsetUs));
+}
+
+Return<Status> TWGraphicBufferSource::signalEndOfInputStream() {
+    return toStatus(mBase->signalEndOfInputStream());
+}
+
+}  // namespace implementation
+}  // namespace V1_0
+}  // namespace omx
+}  // namespace media
+}  // namespace hardware
+}  // namespace android
diff --git a/media/libstagefright/omx/hal/1.0/impl/WGraphicBufferSource.h b/media/libstagefright/omx/hal/1.0/impl/WGraphicBufferSource.h
new file mode 100644
index 0000000..8cf11ca
--- /dev/null
+++ b/media/libstagefright/omx/hal/1.0/impl/WGraphicBufferSource.h
@@ -0,0 +1,97 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_MEDIA_OMX_V1_0_WGRAPHICBUFFERSOURCE_H
+#define ANDROID_HARDWARE_MEDIA_OMX_V1_0_WGRAPHICBUFFERSOURCE_H
+
+#include <hidl/MQDescriptor.h>
+#include <hidl/Status.h>
+
+#include <android/hardware/media/omx/1.0/IGraphicBufferSource.h>
+#include <android/hardware/media/omx/1.0/IOmxNode.h>
+#include <android/hardware/graphics/common/1.0/types.h>
+#include <android/hardware/media/omx/1.0/IOmxNode.h>
+#include <android/hardware/media/omx/1.0/IGraphicBufferSource.h>
+
+#include <android/BnGraphicBufferSource.h>
+
+#include "../../../GraphicBufferSource.h"
+
+namespace android {
+namespace hardware {
+namespace media {
+namespace omx {
+namespace V1_0 {
+namespace implementation {
+
+using ::android::GraphicBufferSource;
+using ::android::hardware::graphics::common::V1_0::Dataspace;
+using ::android::hardware::media::omx::V1_0::ColorAspects;
+using ::android::hardware::media::omx::V1_0::IGraphicBufferSource;
+using ::android::hardware::media::omx::V1_0::IOmxNode;
+using ::android::hardware::media::omx::V1_0::Status;
+using ::android::hidl::base::V1_0::IBase;
+using ::android::hardware::hidl_array;
+using ::android::hardware::hidl_memory;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::sp;
+
+using ::android::IOMXNode;
+
+/**
+ * Wrapper classes for conversion
+ * ==============================
+ *
+ * Naming convention:
+ * - LW = Legacy Wrapper --- It wraps a Treble object inside a legacy object.
+ * - TW = Treble Wrapper --- It wraps a legacy object inside a Treble object.
+ */
+
+typedef ::android::hardware::media::omx::V1_0::IGraphicBufferSource
+        TGraphicBufferSource;
+
+struct TWGraphicBufferSource : public TGraphicBufferSource {
+    struct TWOmxNodeWrapper;
+    struct TWOmxBufferSource;
+    sp<GraphicBufferSource> mBase;
+    sp<IOmxBufferSource> mOmxBufferSource;
+
+    TWGraphicBufferSource(sp<GraphicBufferSource> const& base);
+    Return<Status> configure(
+            const sp<IOmxNode>& omxNode, Dataspace dataspace) override;
+    Return<Status> setSuspend(bool suspend, int64_t timeUs) override;
+    Return<Status> setRepeatPreviousFrameDelayUs(int64_t repeatAfterUs) override;
+    Return<Status> setMaxFps(float maxFps) override;
+    Return<Status> setTimeLapseConfig(
+            int64_t timePerFrameUs, int64_t timePerCaptureUs) override;
+    Return<Status> setStartTimeUs(int64_t startTimeUs) override;
+    Return<Status> setStopTimeUs(int64_t stopTimeUs) override;
+    Return<Status> setColorAspects(const ColorAspects& aspects) override;
+    Return<Status> setTimeOffsetUs(int64_t timeOffsetUs) override;
+    Return<Status> signalEndOfInputStream() override;
+};
+
+}  // namespace implementation
+}  // namespace V1_0
+}  // namespace omx
+}  // namespace media
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_MEDIA_OMX_V1_0_WGRAPHICBUFFERSOURCE_H
diff --git a/media/libstagefright/omx/hal/1.0/impl/WOmxBufferProducer.cpp b/media/libstagefright/omx/hal/1.0/impl/WOmxBufferProducer.cpp
new file mode 100644
index 0000000..b6b9a3b
--- /dev/null
+++ b/media/libstagefright/omx/hal/1.0/impl/WOmxBufferProducer.cpp
@@ -0,0 +1,621 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "WOmxBufferProducer-impl"
+
+#include <android-base/logging.h>
+
+#include "WOmxBufferProducer.h"
+#include "WOmxProducerListener.h"
+#include "Conversion.h"
+
+namespace android {
+namespace hardware {
+namespace media {
+namespace omx {
+namespace V1_0 {
+namespace implementation {
+
+// TWOmxBufferProducer
+TWOmxBufferProducer::TWOmxBufferProducer(
+        sp<IGraphicBufferProducer> const& base):
+    mBase(base) {
+}
+
+Return<void> TWOmxBufferProducer::requestBuffer(
+        int32_t slot, requestBuffer_cb _hidl_cb) {
+    sp<GraphicBuffer> buf;
+    status_t status = mBase->requestBuffer(slot, &buf);
+    AnwBuffer anwBuffer;
+    wrapAs(&anwBuffer, *buf);
+    _hidl_cb(toStatus(status), anwBuffer);
+    return Void();
+}
+
+Return<Status> TWOmxBufferProducer::setMaxDequeuedBufferCount(
+        int32_t maxDequeuedBuffers) {
+    return toStatus(mBase->setMaxDequeuedBufferCount(
+            static_cast<int>(maxDequeuedBuffers)));
+}
+
+Return<Status> TWOmxBufferProducer::setAsyncMode(bool async) {
+    return toStatus(mBase->setAsyncMode(async));
+}
+
+Return<void> TWOmxBufferProducer::dequeueBuffer(
+        uint32_t width, uint32_t height,
+        PixelFormat format, uint32_t usage,
+        bool getFrameTimestamps, dequeueBuffer_cb _hidl_cb) {
+    int slot;
+    sp<Fence> fence;
+    ::android::FrameEventHistoryDelta outTimestamps;
+    status_t status = mBase->dequeueBuffer(
+            &slot, &fence,
+            width, height,
+            static_cast<::android::PixelFormat>(format), usage,
+            getFrameTimestamps ? &outTimestamps : nullptr);
+    hidl_handle tFence;
+    FrameEventHistoryDelta tOutTimestamps;
+
+    native_handle_t* nh = nullptr;
+    if ((fence == nullptr) || !wrapAs(&tFence, &nh, *fence)) {
+        LOG(ERROR) << "TWOmxBufferProducer::dequeueBuffer - "
+                "Invalid output fence";
+        _hidl_cb(toStatus(status),
+                 static_cast<int32_t>(slot),
+                 tFence,
+                 tOutTimestamps);
+        return Void();
+    }
+    std::vector<std::vector<native_handle_t*> > nhAA;
+    if (getFrameTimestamps && !wrapAs(&tOutTimestamps, &nhAA, outTimestamps)) {
+        LOG(ERROR) << "TWOmxBufferProducer::dequeueBuffer - "
+                "Invalid output timestamps";
+        _hidl_cb(toStatus(status),
+                 static_cast<int32_t>(slot),
+                 tFence,
+                 tOutTimestamps);
+        native_handle_delete(nh);
+        return Void();
+    }
+
+    _hidl_cb(toStatus(status),
+            static_cast<int32_t>(slot),
+            tFence,
+            tOutTimestamps);
+    native_handle_delete(nh);
+    if (getFrameTimestamps) {
+        for (auto& nhA : nhAA) {
+            for (auto& handle : nhA) {
+                native_handle_delete(handle);
+            }
+        }
+    }
+    return Void();
+}
+
+Return<Status> TWOmxBufferProducer::detachBuffer(int32_t slot) {
+    return toStatus(mBase->detachBuffer(slot));
+}
+
+Return<void> TWOmxBufferProducer::detachNextBuffer(
+        detachNextBuffer_cb _hidl_cb) {
+    sp<GraphicBuffer> outBuffer;
+    sp<Fence> outFence;
+    status_t status = mBase->detachNextBuffer(&outBuffer, &outFence);
+    AnwBuffer tBuffer;
+    hidl_handle tFence;
+
+    if (outBuffer == nullptr) {
+        LOG(ERROR) << "TWOmxBufferProducer::detachNextBuffer - "
+                "Invalid output buffer";
+        _hidl_cb(toStatus(status), tBuffer, tFence);
+        return Void();
+    }
+    wrapAs(&tBuffer, *outBuffer);
+    native_handle_t* nh = nullptr;
+    if ((outFence != nullptr) && !wrapAs(&tFence, &nh, *outFence)) {
+        LOG(ERROR) << "TWOmxBufferProducer::detachNextBuffer - "
+                "Invalid output fence";
+        _hidl_cb(toStatus(status), tBuffer, tFence);
+        return Void();
+    }
+
+    _hidl_cb(toStatus(status), tBuffer, tFence);
+    native_handle_delete(nh);
+    return Void();
+}
+
+Return<void> TWOmxBufferProducer::attachBuffer(
+        const AnwBuffer& buffer,
+        attachBuffer_cb _hidl_cb) {
+    int outSlot;
+    sp<GraphicBuffer> lBuffer = new GraphicBuffer();
+    if (!convertTo(lBuffer.get(), buffer)) {
+        LOG(ERROR) << "TWOmxBufferProducer::attachBuffer - "
+                "Invalid input native window buffer";
+        _hidl_cb(toStatus(BAD_VALUE), -1);
+        return Void();
+    }
+    status_t status = mBase->attachBuffer(&outSlot, lBuffer);
+
+    _hidl_cb(toStatus(status), static_cast<int32_t>(outSlot));
+    return Void();
+}
+
+Return<void> TWOmxBufferProducer::queueBuffer(
+        int32_t slot, const QueueBufferInput& input,
+        queueBuffer_cb _hidl_cb) {
+    QueueBufferOutput tOutput;
+    IGraphicBufferProducer::QueueBufferInput lInput(
+            0, false, HAL_DATASPACE_UNKNOWN,
+            ::android::Rect(0, 0, 1, 1),
+            NATIVE_WINDOW_SCALING_MODE_FREEZE,
+            0, ::android::Fence::NO_FENCE);
+    if (!convertTo(&lInput, input)) {
+        LOG(ERROR) << "TWOmxBufferProducer::queueBuffer - "
+                "Invalid input";
+        _hidl_cb(toStatus(BAD_VALUE), tOutput);
+        return Void();
+    }
+    IGraphicBufferProducer::QueueBufferOutput lOutput;
+    status_t status = mBase->queueBuffer(
+            static_cast<int>(slot), lInput, &lOutput);
+
+    std::vector<std::vector<native_handle_t*> > nhAA;
+    if (!wrapAs(&tOutput, &nhAA, lOutput)) {
+        LOG(ERROR) << "TWOmxBufferProducer::queueBuffer - "
+                "Invalid output";
+        _hidl_cb(toStatus(BAD_VALUE), tOutput);
+        return Void();
+    }
+
+    _hidl_cb(toStatus(status), tOutput);
+    for (auto& nhA : nhAA) {
+        for (auto& nh : nhA) {
+            native_handle_delete(nh);
+        }
+    }
+    return Void();
+}
+
+Return<Status> TWOmxBufferProducer::cancelBuffer(
+        int32_t slot, const hidl_handle& fence) {
+    sp<Fence> lFence = new Fence();
+    if (!convertTo(lFence.get(), fence)) {
+        LOG(ERROR) << "TWOmxBufferProducer::cancelBuffer - "
+                "Invalid input fence";
+        return toStatus(BAD_VALUE);
+    }
+    return toStatus(mBase->cancelBuffer(static_cast<int>(slot), lFence));
+}
+
+Return<void> TWOmxBufferProducer::query(int32_t what, query_cb _hidl_cb) {
+    int lValue;
+    int lReturn = mBase->query(static_cast<int>(what), &lValue);
+    _hidl_cb(static_cast<int32_t>(lReturn), static_cast<int32_t>(lValue));
+    return Void();
+}
+
+Return<void> TWOmxBufferProducer::connect(
+        const sp<IOmxProducerListener>& listener,
+        int32_t api, bool producerControlledByApp, connect_cb _hidl_cb) {
+    sp<IProducerListener> lListener = listener == nullptr ?
+            nullptr : new LWOmxProducerListener(listener);
+    IGraphicBufferProducer::QueueBufferOutput lOutput;
+    status_t status = mBase->connect(lListener,
+            static_cast<int>(api),
+            producerControlledByApp,
+            &lOutput);
+
+    QueueBufferOutput tOutput;
+    std::vector<std::vector<native_handle_t*> > nhAA;
+    if (!wrapAs(&tOutput, &nhAA, lOutput)) {
+        LOG(ERROR) << "TWOmxBufferProducer::connect - "
+                "Invalid output";
+        _hidl_cb(toStatus(status), tOutput);
+        return Void();
+    }
+
+    _hidl_cb(toStatus(status), tOutput);
+    for (auto& nhA : nhAA) {
+        for (auto& nh : nhA) {
+            native_handle_delete(nh);
+        }
+    }
+    return Void();
+}
+
+Return<Status> TWOmxBufferProducer::disconnect(
+        int32_t api, DisconnectMode mode) {
+    return toStatus(mBase->disconnect(
+            static_cast<int>(api),
+            toGuiDisconnectMode(mode)));
+}
+
+Return<Status> TWOmxBufferProducer::setSidebandStream(const hidl_handle& stream) {
+    return toStatus(mBase->setSidebandStream(NativeHandle::create(
+            native_handle_clone(stream), true)));
+}
+
+Return<void> TWOmxBufferProducer::allocateBuffers(
+        uint32_t width, uint32_t height, PixelFormat format, uint32_t usage) {
+    mBase->allocateBuffers(
+            width, height,
+            static_cast<::android::PixelFormat>(format),
+            usage);
+    return Void();
+}
+
+Return<Status> TWOmxBufferProducer::allowAllocation(bool allow) {
+    return toStatus(mBase->allowAllocation(allow));
+}
+
+Return<Status> TWOmxBufferProducer::setGenerationNumber(uint32_t generationNumber) {
+    return toStatus(mBase->setGenerationNumber(generationNumber));
+}
+
+Return<void> TWOmxBufferProducer::getConsumerName(getConsumerName_cb _hidl_cb) {
+    _hidl_cb(mBase->getConsumerName().string());
+    return Void();
+}
+
+Return<Status> TWOmxBufferProducer::setSharedBufferMode(bool sharedBufferMode) {
+    return toStatus(mBase->setSharedBufferMode(sharedBufferMode));
+}
+
+Return<Status> TWOmxBufferProducer::setAutoRefresh(bool autoRefresh) {
+    return toStatus(mBase->setAutoRefresh(autoRefresh));
+}
+
+Return<Status> TWOmxBufferProducer::setDequeueTimeout(int64_t timeoutNs) {
+    return toStatus(mBase->setDequeueTimeout(timeoutNs));
+}
+
+Return<void> TWOmxBufferProducer::getLastQueuedBuffer(
+        getLastQueuedBuffer_cb _hidl_cb) {
+    sp<GraphicBuffer> lOutBuffer = new GraphicBuffer();
+    sp<Fence> lOutFence = new Fence();
+    float lOutTransformMatrix[16];
+    status_t status = mBase->getLastQueuedBuffer(
+            &lOutBuffer, &lOutFence, lOutTransformMatrix);
+
+    AnwBuffer tOutBuffer;
+    if (lOutBuffer != nullptr) {
+        wrapAs(&tOutBuffer, *lOutBuffer);
+    }
+    hidl_handle tOutFence;
+    native_handle_t* nh = nullptr;
+    if ((lOutFence == nullptr) || !wrapAs(&tOutFence, &nh, *lOutFence)) {
+        LOG(ERROR) << "TWOmxBufferProducer::getLastQueuedBuffer - "
+                "Invalid output fence";
+        _hidl_cb(toStatus(status),
+                tOutBuffer,
+                tOutFence,
+                hidl_array<float, 16>());
+        return Void();
+    }
+    hidl_array<float, 16> tOutTransformMatrix(lOutTransformMatrix);
+
+    _hidl_cb(toStatus(status), tOutBuffer, tOutFence, tOutTransformMatrix);
+    native_handle_delete(nh);
+    return Void();
+}
+
+Return<void> TWOmxBufferProducer::getFrameTimestamps(
+        getFrameTimestamps_cb _hidl_cb) {
+    ::android::FrameEventHistoryDelta lDelta;
+    mBase->getFrameTimestamps(&lDelta);
+
+    FrameEventHistoryDelta tDelta;
+    std::vector<std::vector<native_handle_t*> > nhAA;
+    if (!wrapAs(&tDelta, &nhAA, lDelta)) {
+        LOG(ERROR) << "TWOmxBufferProducer::getFrameTimestamps - "
+                "Invalid output frame timestamps";
+        _hidl_cb(tDelta);
+        return Void();
+    }
+
+    _hidl_cb(tDelta);
+    for (auto& nhA : nhAA) {
+        for (auto& nh : nhA) {
+            native_handle_delete(nh);
+        }
+    }
+    return Void();
+}
+
+Return<void> TWOmxBufferProducer::getUniqueId(getUniqueId_cb _hidl_cb) {
+    uint64_t outId;
+    status_t status = mBase->getUniqueId(&outId);
+    _hidl_cb(toStatus(status), outId);
+    return Void();
+}
+
+// LWOmxBufferProducer
+
+LWOmxBufferProducer::LWOmxBufferProducer(sp<IOmxBufferProducer> const& base) :
+    mBase(base) {
+}
+
+status_t LWOmxBufferProducer::requestBuffer(int slot, sp<GraphicBuffer>* buf) {
+    *buf = new GraphicBuffer();
+    status_t fnStatus;
+    status_t transStatus = toStatusT(mBase->requestBuffer(
+            static_cast<int32_t>(slot),
+            [&fnStatus, &buf] (Status status, AnwBuffer const& buffer) {
+                fnStatus = toStatusT(status);
+                if (!convertTo(buf->get(), buffer)) {
+                    fnStatus = fnStatus == NO_ERROR ? BAD_VALUE : fnStatus;
+                }
+            }));
+    return transStatus == NO_ERROR ? fnStatus : transStatus;
+}
+
+status_t LWOmxBufferProducer::setMaxDequeuedBufferCount(
+        int maxDequeuedBuffers) {
+    return toStatusT(mBase->setMaxDequeuedBufferCount(
+            static_cast<int32_t>(maxDequeuedBuffers)));
+}
+
+status_t LWOmxBufferProducer::setAsyncMode(bool async) {
+    return toStatusT(mBase->setAsyncMode(async));
+}
+
+status_t LWOmxBufferProducer::dequeueBuffer(
+        int* slot, sp<Fence>* fence,
+        uint32_t w, uint32_t h, ::android::PixelFormat format,
+        uint32_t usage, FrameEventHistoryDelta* outTimestamps) {
+    *fence = new Fence();
+    status_t fnStatus;
+    status_t transStatus = toStatusT(mBase->dequeueBuffer(
+            w, h, static_cast<PixelFormat>(format), usage,
+            outTimestamps != nullptr,
+            [&fnStatus, slot, fence, outTimestamps] (
+                    Status status,
+                    int32_t tSlot,
+                    hidl_handle const& tFence,
+                    IOmxBufferProducer::FrameEventHistoryDelta const& tTs) {
+                fnStatus = toStatusT(status);
+                *slot = tSlot;
+                if (!convertTo(fence->get(), tFence)) {
+                    LOG(ERROR) << "LWOmxBufferProducer::dequeueBuffer - "
+                            "Invalid output fence";
+                    fnStatus = fnStatus == NO_ERROR ? BAD_VALUE : fnStatus;
+                }
+                if (outTimestamps && !convertTo(outTimestamps, tTs)) {
+                    LOG(ERROR) << "LWOmxBufferProducer::dequeueBuffer - "
+                            "Invalid output timestamps";
+                    fnStatus = fnStatus == NO_ERROR ? BAD_VALUE : fnStatus;
+                }
+            }));
+    return transStatus == NO_ERROR ? fnStatus : transStatus;
+}
+
+status_t LWOmxBufferProducer::detachBuffer(int slot) {
+    return toStatusT(mBase->detachBuffer(static_cast<int>(slot)));
+}
+
+status_t LWOmxBufferProducer::detachNextBuffer(
+        sp<GraphicBuffer>* outBuffer, sp<Fence>* outFence) {
+    *outBuffer = new GraphicBuffer();
+    *outFence = new Fence();
+    status_t fnStatus;
+    status_t transStatus = toStatusT(mBase->detachNextBuffer(
+            [&fnStatus, outBuffer, outFence] (
+                    Status status,
+                    AnwBuffer const& tBuffer,
+                    hidl_handle const& tFence) {
+                fnStatus = toStatusT(status);
+                if (!convertTo(outFence->get(), tFence)) {
+                    LOG(ERROR) << "LWOmxBufferProducer::detachNextBuffer - "
+                            "Invalid output fence";
+                    fnStatus = fnStatus == NO_ERROR ? BAD_VALUE : fnStatus;
+                }
+                if (!convertTo(outBuffer->get(), tBuffer)) {
+                    LOG(ERROR) << "LWOmxBufferProducer::detachNextBuffer - "
+                            "Invalid output buffer";
+                    fnStatus = fnStatus == NO_ERROR ? BAD_VALUE : fnStatus;
+                }
+            }));
+    return transStatus == NO_ERROR ? fnStatus : transStatus;
+}
+
+status_t LWOmxBufferProducer::attachBuffer(
+        int* outSlot, const sp<GraphicBuffer>& buffer) {
+    AnwBuffer tBuffer;
+    wrapAs(&tBuffer, *buffer);
+    status_t fnStatus;
+    status_t transStatus = toStatusT(mBase->attachBuffer(tBuffer,
+            [&fnStatus, outSlot] (Status status, int32_t slot) {
+                fnStatus = toStatusT(status);
+                *outSlot = slot;
+            }));
+    return transStatus == NO_ERROR ? fnStatus : transStatus;
+}
+
+status_t LWOmxBufferProducer::queueBuffer(
+        int slot,
+        const QueueBufferInput& input,
+        QueueBufferOutput* output) {
+    IOmxBufferProducer::QueueBufferInput tInput;
+    native_handle_t* nh;
+    if (!wrapAs(&tInput, &nh, input)) {
+        LOG(ERROR) << "LWOmxBufferProducer::queueBuffer - "
+                "Invalid input";
+        return BAD_VALUE;
+    }
+    status_t fnStatus;
+    status_t transStatus = toStatusT(mBase->queueBuffer(slot, tInput,
+            [&fnStatus, output] (
+                    Status status,
+                    IOmxBufferProducer::QueueBufferOutput const& tOutput) {
+                fnStatus = toStatusT(status);
+                if (!convertTo(output, tOutput)) {
+                    LOG(ERROR) << "LWOmxBufferProducer::queueBuffer - "
+                            "Invalid output";
+                    fnStatus = fnStatus == NO_ERROR ? BAD_VALUE : fnStatus;
+                }
+            }));
+    native_handle_delete(nh);
+    return transStatus == NO_ERROR ? fnStatus : transStatus;
+}
+
+status_t LWOmxBufferProducer::cancelBuffer(int slot, const sp<Fence>& fence) {
+    hidl_handle tFence;
+    native_handle_t* nh = nullptr;
+    if ((fence == nullptr) || !wrapAs(&tFence, &nh, *fence)) {
+        LOG(ERROR) << "LWOmxBufferProducer::cancelBuffer - "
+                "Invalid input fence";
+        return BAD_VALUE;
+    }
+
+    status_t status = toStatusT(mBase->cancelBuffer(
+            static_cast<int32_t>(slot), tFence));
+    native_handle_delete(nh);
+    return status;
+}
+
+int LWOmxBufferProducer::query(int what, int* value) {
+    int result;
+    status_t transStatus = toStatusT(mBase->query(
+            static_cast<int32_t>(what),
+            [&result, value] (int32_t tResult, int32_t tValue) {
+                result = static_cast<int>(tResult);
+                *value = static_cast<int>(tValue);
+            }));
+    return transStatus == NO_ERROR ? result : static_cast<int>(transStatus);
+}
+
+status_t LWOmxBufferProducer::connect(
+        const sp<IProducerListener>& listener, int api,
+        bool producerControlledByApp, QueueBufferOutput* output) {
+    sp<IOmxProducerListener> tListener = listener == nullptr ?
+            nullptr : new TWOmxProducerListener(listener);
+    status_t fnStatus;
+    status_t transStatus = toStatusT(mBase->connect(
+            tListener, static_cast<int32_t>(api), producerControlledByApp,
+            [&fnStatus, output] (
+                    Status status,
+                    IOmxBufferProducer::QueueBufferOutput const& tOutput) {
+                fnStatus = toStatusT(status);
+                if (!convertTo(output, tOutput)) {
+                    LOG(ERROR) << "LWOmxBufferProducer::connect - "
+                            "Invalid output";
+                    fnStatus = fnStatus == NO_ERROR ? BAD_VALUE : fnStatus;
+                }
+            }));
+    return transStatus == NO_ERROR ? fnStatus : transStatus;
+}
+
+status_t LWOmxBufferProducer::disconnect(int api, DisconnectMode mode) {
+    return toStatusT(mBase->disconnect(
+            static_cast<int32_t>(api), toOmxDisconnectMode(mode)));
+}
+
+status_t LWOmxBufferProducer::setSidebandStream(
+        const sp<NativeHandle>& stream) {
+    return toStatusT(mBase->setSidebandStream(stream->handle()));
+}
+
+void LWOmxBufferProducer::allocateBuffers(uint32_t width, uint32_t height,
+        ::android::PixelFormat format, uint32_t usage) {
+    mBase->allocateBuffers(
+            width, height, static_cast<PixelFormat>(format), usage);
+}
+
+status_t LWOmxBufferProducer::allowAllocation(bool allow) {
+    return toStatusT(mBase->allowAllocation(allow));
+}
+
+status_t LWOmxBufferProducer::setGenerationNumber(uint32_t generationNumber) {
+    return toStatusT(mBase->setGenerationNumber(generationNumber));
+}
+
+String8 LWOmxBufferProducer::getConsumerName() const {
+    String8 lName;
+    mBase->getConsumerName([&lName] (hidl_string const& name) {
+                lName = name.c_str();
+            });
+    return lName;
+}
+
+status_t LWOmxBufferProducer::setSharedBufferMode(bool sharedBufferMode) {
+    return toStatusT(mBase->setSharedBufferMode(sharedBufferMode));
+}
+
+status_t LWOmxBufferProducer::setAutoRefresh(bool autoRefresh) {
+    return toStatusT(mBase->setAutoRefresh(autoRefresh));
+}
+
+status_t LWOmxBufferProducer::setDequeueTimeout(nsecs_t timeout) {
+    return toStatusT(mBase->setDequeueTimeout(static_cast<int64_t>(timeout)));
+}
+
+status_t LWOmxBufferProducer::getLastQueuedBuffer(
+        sp<GraphicBuffer>* outBuffer,
+        sp<Fence>* outFence,
+        float outTransformMatrix[16]) {
+    status_t fnStatus;
+    status_t transStatus = toStatusT(mBase->getLastQueuedBuffer(
+            [&fnStatus, outBuffer, outFence, &outTransformMatrix] (
+                    Status status,
+                    AnwBuffer const& buffer,
+                    hidl_handle const& fence,
+                    hidl_array<float, 16> const& transformMatrix) {
+                fnStatus = toStatusT(status);
+                *outBuffer = new GraphicBuffer();
+                if (!convertTo(outBuffer->get(), buffer)) {
+                    LOG(ERROR) << "LWOmxBufferProducer::getLastQueuedBuffer - "
+                            "Invalid output buffer";
+                    fnStatus = fnStatus == NO_ERROR ? BAD_VALUE : fnStatus;
+                }
+                *outFence = new Fence();
+                if (!convertTo(outFence->get(), fence)) {
+                    LOG(ERROR) << "LWOmxBufferProducer::getLastQueuedBuffer - "
+                            "Invalid output fence";
+                    fnStatus = fnStatus == NO_ERROR ? BAD_VALUE : fnStatus;
+                }
+                std::copy(transformMatrix.data(),
+                        transformMatrix.data() + 16,
+                        outTransformMatrix);
+            }));
+    return transStatus == NO_ERROR ? fnStatus : transStatus;
+}
+
+void LWOmxBufferProducer::getFrameTimestamps(FrameEventHistoryDelta* outDelta) {
+    mBase->getFrameTimestamps([outDelta] (
+            IOmxBufferProducer::FrameEventHistoryDelta const& tDelta) {
+                convertTo(outDelta, tDelta);
+            });
+}
+
+status_t LWOmxBufferProducer::getUniqueId(uint64_t* outId) const {
+    status_t fnStatus;
+    status_t transStatus = toStatusT(mBase->getUniqueId(
+            [&fnStatus, outId] (Status status, uint64_t id) {
+                fnStatus = toStatusT(status);
+                *outId = id;
+            }));
+    return transStatus == NO_ERROR ? fnStatus : transStatus;
+}
+
+}  // namespace implementation
+}  // namespace V1_0
+}  // namespace omx
+}  // namespace media
+}  // namespace hardware
+}  // namespace android
diff --git a/media/libstagefright/omx/hal/1.0/impl/WOmxBufferProducer.h b/media/libstagefright/omx/hal/1.0/impl/WOmxBufferProducer.h
new file mode 100644
index 0000000..8520160
--- /dev/null
+++ b/media/libstagefright/omx/hal/1.0/impl/WOmxBufferProducer.h
@@ -0,0 +1,142 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_MEDIA_OMX_V1_0_WOMXBUFFERPRODUCER_H
+#define ANDROID_HARDWARE_MEDIA_OMX_V1_0_WOMXBUFFERPRODUCER_H
+
+#include <hidl/MQDescriptor.h>
+#include <hidl/Status.h>
+
+#include <binder/Binder.h>
+#include <gui/IGraphicBufferProducer.h>
+#include <gui/IProducerListener.h>
+
+#include <android/hardware/media/omx/1.0/IOmxBufferProducer.h>
+
+namespace android {
+namespace hardware {
+namespace media {
+namespace omx {
+namespace V1_0 {
+namespace implementation {
+
+using ::android::hardware::graphics::common::V1_0::PixelFormat;
+using ::android::hardware::media::omx::V1_0::IOmxBufferProducer;
+using ::android::hardware::media::omx::V1_0::IOmxProducerListener;
+using ::android::hardware::media::omx::V1_0::Status;
+using ::android::hardware::media::V1_0::AnwBuffer;
+using ::android::hidl::base::V1_0::IBase;
+using ::android::hardware::hidl_array;
+using ::android::hardware::hidl_memory;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::sp;
+
+using ::android::IGraphicBufferProducer;
+using ::android::BnGraphicBufferProducer;
+using ::android::IProducerListener;
+
+struct TWOmxBufferProducer : public IOmxBufferProducer {
+    sp<IGraphicBufferProducer> mBase;
+    TWOmxBufferProducer(sp<IGraphicBufferProducer> const& base);
+    Return<void> requestBuffer(int32_t slot, requestBuffer_cb _hidl_cb)
+            override;
+    Return<Status> setMaxDequeuedBufferCount(int32_t maxDequeuedBuffers)
+            override;
+    Return<Status> setAsyncMode(bool async) override;
+    Return<void> dequeueBuffer(
+            uint32_t width, uint32_t height, PixelFormat format, uint32_t usage,
+            bool getFrameTimestamps, dequeueBuffer_cb _hidl_cb) override;
+    Return<Status> detachBuffer(int32_t slot) override;
+    Return<void> detachNextBuffer(detachNextBuffer_cb _hidl_cb) override;
+    Return<void> attachBuffer(const AnwBuffer& buffer, attachBuffer_cb _hidl_cb)
+            override;
+    Return<void> queueBuffer(
+            int32_t slot, const IOmxBufferProducer::QueueBufferInput& input,
+            queueBuffer_cb _hidl_cb) override;
+    Return<Status> cancelBuffer(int32_t slot, const hidl_handle& fence)
+            override;
+    Return<void> query(int32_t what, query_cb _hidl_cb) override;
+    Return<void> connect(const sp<IOmxProducerListener>& listener,
+            int32_t api, bool producerControlledByApp,
+            connect_cb _hidl_cb) override;
+    Return<Status> disconnect(
+            int32_t api,
+            IOmxBufferProducer::DisconnectMode mode) override;
+    Return<Status> setSidebandStream(const hidl_handle& stream) override;
+    Return<void> allocateBuffers(
+            uint32_t width, uint32_t height,
+            PixelFormat format, uint32_t usage) override;
+    Return<Status> allowAllocation(bool allow) override;
+    Return<Status> setGenerationNumber(uint32_t generationNumber) override;
+    Return<void> getConsumerName(getConsumerName_cb _hidl_cb) override;
+    Return<Status> setSharedBufferMode(bool sharedBufferMode) override;
+    Return<Status> setAutoRefresh(bool autoRefresh) override;
+    Return<Status> setDequeueTimeout(int64_t timeoutNs) override;
+    Return<void> getLastQueuedBuffer(getLastQueuedBuffer_cb _hidl_cb) override;
+    Return<void> getFrameTimestamps(getFrameTimestamps_cb _hidl_cb) override;
+    Return<void> getUniqueId(getUniqueId_cb _hidl_cb) override;
+};
+
+struct LWOmxBufferProducer : public BnGraphicBufferProducer {
+    sp<IOmxBufferProducer> mBase;
+    LWOmxBufferProducer(sp<IOmxBufferProducer> const& base);
+
+    status_t requestBuffer(int slot, sp<GraphicBuffer>* buf) override;
+    status_t setMaxDequeuedBufferCount(int maxDequeuedBuffers) override;
+    status_t setAsyncMode(bool async) override;
+    status_t dequeueBuffer(int* slot, sp<Fence>* fence, uint32_t w,
+            uint32_t h, ::android::PixelFormat format, uint32_t usage,
+            FrameEventHistoryDelta* outTimestamps) override;
+    status_t detachBuffer(int slot) override;
+    status_t detachNextBuffer(sp<GraphicBuffer>* outBuffer, sp<Fence>* outFence)
+            override;
+    status_t attachBuffer(int* outSlot, const sp<GraphicBuffer>& buffer)
+            override;
+    status_t queueBuffer(int slot,
+            const QueueBufferInput& input,
+            QueueBufferOutput* output) override;
+    status_t cancelBuffer(int slot, const sp<Fence>& fence) override;
+    int query(int what, int* value) override;
+    status_t connect(const sp<IProducerListener>& listener, int api,
+            bool producerControlledByApp, QueueBufferOutput* output) override;
+    status_t disconnect(int api, DisconnectMode mode = DisconnectMode::Api)
+            override;
+    status_t setSidebandStream(const sp<NativeHandle>& stream) override;
+    void allocateBuffers(uint32_t width, uint32_t height,
+            ::android::PixelFormat format, uint32_t usage) override;
+    status_t allowAllocation(bool allow) override;
+    status_t setGenerationNumber(uint32_t generationNumber) override;
+    String8 getConsumerName() const override;
+    status_t setSharedBufferMode(bool sharedBufferMode) override;
+    status_t setAutoRefresh(bool autoRefresh) override;
+    status_t setDequeueTimeout(nsecs_t timeout) override;
+    status_t getLastQueuedBuffer(sp<GraphicBuffer>* outBuffer,
+          sp<Fence>* outFence, float outTransformMatrix[16]) override;
+    void getFrameTimestamps(FrameEventHistoryDelta* outDelta) override;
+    status_t getUniqueId(uint64_t* outId) const override;
+};
+
+}  // namespace implementation
+}  // namespace V1_0
+}  // namespace omx
+}  // namespace media
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_MEDIA_OMX_V1_0_WOMXBUFFERPRODUCER_H
diff --git a/media/libstagefright/omx/hal/1.0/impl/WOmxBufferSource.cpp b/media/libstagefright/omx/hal/1.0/impl/WOmxBufferSource.cpp
new file mode 100644
index 0000000..803283a
--- /dev/null
+++ b/media/libstagefright/omx/hal/1.0/impl/WOmxBufferSource.cpp
@@ -0,0 +1,109 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <utils/String8.h>
+
+#include "WOmxBufferSource.h"
+#include "Conversion.h"
+
+namespace android {
+namespace hardware {
+namespace media {
+namespace omx {
+namespace V1_0 {
+namespace implementation {
+
+// LWOmxBufferSource
+LWOmxBufferSource::LWOmxBufferSource(sp<IOmxBufferSource> const& base) :
+    mBase(base) {
+}
+
+::android::binder::Status LWOmxBufferSource::onOmxExecuting() {
+    return toBinderStatus(mBase->onOmxExecuting());
+}
+
+::android::binder::Status LWOmxBufferSource::onOmxIdle() {
+    return toBinderStatus(mBase->onOmxIdle());
+}
+
+::android::binder::Status LWOmxBufferSource::onOmxLoaded() {
+    return toBinderStatus(mBase->onOmxLoaded());
+}
+
+::android::binder::Status LWOmxBufferSource::onInputBufferAdded(
+        int32_t bufferId) {
+    return toBinderStatus(mBase->onInputBufferAdded(
+            static_cast<uint32_t>(bufferId)));
+}
+
+::android::binder::Status LWOmxBufferSource::onInputBufferEmptied(
+        int32_t bufferId, OMXFenceParcelable const& fenceParcel) {
+    hidl_handle fence;
+    native_handle_t* fenceNh;
+    if (!wrapAs(&fence, &fenceNh, fenceParcel)) {
+        return ::android::binder::Status::fromExceptionCode(
+                ::android::binder::Status::EX_BAD_PARCELABLE,
+                "Invalid fence");
+    }
+    ::android::binder::Status status = toBinderStatus(
+            mBase->onInputBufferEmptied(
+            static_cast<uint32_t>(bufferId), fence));
+    native_handle_close(fenceNh);
+    native_handle_delete(fenceNh);
+    return status;
+}
+
+// TWOmxBufferSource
+TWOmxBufferSource::TWOmxBufferSource(sp<IOMXBufferSource> const& base) :
+    mBase(base) {
+}
+
+Return<void> TWOmxBufferSource::onOmxExecuting() {
+    mBase->onOmxExecuting();
+    return Void();
+}
+
+Return<void> TWOmxBufferSource::onOmxIdle() {
+    mBase->onOmxIdle();
+    return Void();
+}
+
+Return<void> TWOmxBufferSource::onOmxLoaded() {
+    mBase->onOmxLoaded();
+    return Void();
+}
+
+Return<void> TWOmxBufferSource::onInputBufferAdded(uint32_t buffer) {
+    mBase->onInputBufferAdded(int32_t(buffer));
+    return Void();
+}
+
+Return<void> TWOmxBufferSource::onInputBufferEmptied(
+        uint32_t buffer, hidl_handle const& fence) {
+    OMXFenceParcelable fenceParcelable;
+    if (!convertTo(&fenceParcelable, fence)) {
+        return Void();
+    }
+    mBase->onInputBufferEmptied(int32_t(buffer), fenceParcelable);
+    return Void();
+}
+
+}  // namespace implementation
+}  // namespace V1_0
+}  // namespace omx
+}  // namespace media
+}  // namespace hardware
+}  // namespace android
diff --git a/media/libstagefright/omx/hal/1.0/impl/WOmxBufferSource.h b/media/libstagefright/omx/hal/1.0/impl/WOmxBufferSource.h
new file mode 100644
index 0000000..9b27796
--- /dev/null
+++ b/media/libstagefright/omx/hal/1.0/impl/WOmxBufferSource.h
@@ -0,0 +1,90 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_MEDIA_OMX_V1_0_WOMXBUFFERSOURCE_H
+#define ANDROID_HARDWARE_MEDIA_OMX_V1_0_WOMXBUFFERSOURCE_H
+
+#include <hidl/MQDescriptor.h>
+#include <hidl/Status.h>
+
+#include <binder/Binder.h>
+#include <media/OMXFenceParcelable.h>
+
+#include <android/hardware/media/omx/1.0/IOmxBufferSource.h>
+#include <android/BnOMXBufferSource.h>
+
+namespace android {
+namespace hardware {
+namespace media {
+namespace omx {
+namespace V1_0 {
+namespace implementation {
+
+using ::android::hardware::media::omx::V1_0::IOmxBufferSource;
+using ::android::hidl::base::V1_0::IBase;
+using ::android::hardware::hidl_array;
+using ::android::hardware::hidl_memory;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::hidl_handle;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::sp;
+
+using ::android::OMXFenceParcelable;
+using ::android::IOMXBufferSource;
+using ::android::BnOMXBufferSource;
+
+/**
+ * Wrapper classes for conversion
+ * ==============================
+ *
+ * Naming convention:
+ * - LW = Legacy Wrapper --- It wraps a Treble object inside a legacy object.
+ * - TW = Treble Wrapper --- It wraps a legacy object inside a Treble object.
+ */
+
+struct LWOmxBufferSource : public BnOMXBufferSource {
+    sp<IOmxBufferSource> mBase;
+    LWOmxBufferSource(sp<IOmxBufferSource> const& base);
+    ::android::binder::Status onOmxExecuting() override;
+    ::android::binder::Status onOmxIdle() override;
+    ::android::binder::Status onOmxLoaded() override;
+    ::android::binder::Status onInputBufferAdded(int32_t bufferID) override;
+    ::android::binder::Status onInputBufferEmptied(
+            int32_t bufferID, OMXFenceParcelable const& fenceParcel) override;
+};
+
+struct TWOmxBufferSource : public IOmxBufferSource {
+    sp<IOMXBufferSource> mBase;
+    TWOmxBufferSource(sp<IOMXBufferSource> const& base);
+    Return<void> onOmxExecuting() override;
+    Return<void> onOmxIdle() override;
+    Return<void> onOmxLoaded() override;
+    Return<void> onInputBufferAdded(uint32_t buffer) override;
+    Return<void> onInputBufferEmptied(
+            uint32_t buffer, hidl_handle const& fence) override;
+};
+
+
+}  // namespace implementation
+}  // namespace V1_0
+}  // namespace omx
+}  // namespace media
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_MEDIA_OMX_V1_0_WOMXBUFFERSOURCE_H
diff --git a/media/libstagefright/omx/hal/1.0/impl/WOmxNode.cpp b/media/libstagefright/omx/hal/1.0/impl/WOmxNode.cpp
new file mode 100644
index 0000000..dc5c8e1
--- /dev/null
+++ b/media/libstagefright/omx/hal/1.0/impl/WOmxNode.cpp
@@ -0,0 +1,440 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <algorithm>
+
+#include "WOmxNode.h"
+#include "WOmxBufferSource.h"
+#include "Conversion.h"
+
+namespace android {
+namespace hardware {
+namespace media {
+namespace omx {
+namespace V1_0 {
+namespace implementation {
+
+using ::android::hardware::Void;
+
+// LWOmxNode
+LWOmxNode::LWOmxNode(sp<IOmxNode> const& base) : mBase(base) {
+}
+
+status_t LWOmxNode::freeNode() {
+    return toStatusT(mBase->freeNode());
+}
+
+status_t LWOmxNode::sendCommand(
+        OMX_COMMANDTYPE cmd, OMX_S32 param) {
+    return toStatusT(mBase->sendCommand(
+            toRawCommandType(cmd), param));
+}
+
+status_t LWOmxNode::getParameter(
+        OMX_INDEXTYPE index, void *params, size_t size) {
+    hidl_vec<uint8_t> tParams = inHidlBytes(params, size);
+    status_t fnStatus;
+    status_t transStatus = toStatusT(mBase->getParameter(
+            toRawIndexType(index),
+            tParams,
+            [&fnStatus, params, size](
+                    Status status, hidl_vec<uint8_t> const& outParams) {
+                fnStatus = toStatusT(status);
+                std::copy(
+                        outParams.data(),
+                        outParams.data() + outParams.size(),
+                        static_cast<uint8_t*>(params));
+            }));
+    return transStatus == NO_ERROR ? fnStatus : transStatus;
+}
+
+status_t LWOmxNode::setParameter(
+        OMX_INDEXTYPE index, const void *params, size_t size) {
+    hidl_vec<uint8_t> tParams = inHidlBytes(params, size);
+    return toStatusT(mBase->setParameter(
+            toRawIndexType(index), tParams));
+}
+
+status_t LWOmxNode::getConfig(
+        OMX_INDEXTYPE index, void *params, size_t size) {
+    hidl_vec<uint8_t> tParams = inHidlBytes(params, size);
+    status_t fnStatus;
+    status_t transStatus = toStatusT(mBase->getConfig(
+            toRawIndexType(index),
+            tParams,
+            [&fnStatus, params, size](
+                    Status status, hidl_vec<uint8_t> const& outParams) {
+                fnStatus = toStatusT(status);
+                std::copy(
+                        outParams.data(),
+                        outParams.data() + size,
+                        static_cast<uint8_t*>(params));
+            }));
+    return transStatus == NO_ERROR ? fnStatus : transStatus;
+}
+
+status_t LWOmxNode::setConfig(
+        OMX_INDEXTYPE index, const void *params, size_t size) {
+    hidl_vec<uint8_t> tParams = inHidlBytes(params, size);
+    return toStatusT(mBase->setConfig(toRawIndexType(index), tParams));
+}
+
+status_t LWOmxNode::setPortMode(
+        OMX_U32 port_index, IOMX::PortMode mode) {
+    return toStatusT(mBase->setPortMode(port_index, toHardwarePortMode(mode)));
+}
+
+status_t LWOmxNode::prepareForAdaptivePlayback(
+        OMX_U32 portIndex, OMX_BOOL enable,
+        OMX_U32 maxFrameWidth, OMX_U32 maxFrameHeight) {
+    return toStatusT(mBase->prepareForAdaptivePlayback(
+            portIndex, toRawBool(enable), maxFrameWidth, maxFrameHeight));
+}
+
+status_t LWOmxNode::configureVideoTunnelMode(
+        OMX_U32 portIndex, OMX_BOOL tunneled,
+        OMX_U32 audioHwSync, native_handle_t **sidebandHandle) {
+    status_t fnStatus;
+    status_t transStatus = toStatusT(mBase->configureVideoTunnelMode(
+            portIndex,
+            toRawBool(tunneled),
+            audioHwSync,
+            [&fnStatus, sidebandHandle](
+                    Status status, hidl_handle const& outSidebandHandle) {
+                fnStatus = toStatusT(status);
+                *sidebandHandle = outSidebandHandle == nullptr ?
+                        nullptr : native_handle_clone(outSidebandHandle);
+            }));
+    return transStatus == NO_ERROR ? fnStatus : transStatus;
+}
+
+status_t LWOmxNode::getGraphicBufferUsage(
+        OMX_U32 portIndex, OMX_U32* usage) {
+    status_t fnStatus;
+    status_t transStatus = toStatusT(mBase->getGraphicBufferUsage(
+            portIndex,
+            [&fnStatus, usage](
+                    Status status, uint32_t outUsage) {
+                fnStatus = toStatusT(status);
+                *usage = outUsage;
+            }));
+    return transStatus == NO_ERROR ? fnStatus : transStatus;
+}
+
+status_t LWOmxNode::setInputSurface(
+        const sp<IOMXBufferSource> &bufferSource) {
+    return toStatusT(mBase->setInputSurface(
+            new TWOmxBufferSource(bufferSource)));
+}
+
+status_t LWOmxNode::allocateSecureBuffer(
+        OMX_U32 portIndex, size_t size, buffer_id *buffer,
+        void **buffer_data, sp<NativeHandle> *native_handle) {
+    *buffer_data = nullptr;
+    status_t fnStatus;
+    status_t transStatus = toStatusT(mBase->allocateSecureBuffer(
+            portIndex,
+            static_cast<uint64_t>(size),
+            [&fnStatus, buffer, buffer_data, native_handle](
+                    Status status,
+                    uint32_t outBuffer,
+                    hidl_handle const& outNativeHandle) {
+                fnStatus = toStatusT(status);
+                *buffer = outBuffer;
+                *native_handle = NativeHandle::create(
+                        native_handle_clone(outNativeHandle), true);
+            }));
+    return transStatus == NO_ERROR ? fnStatus : transStatus;
+}
+
+status_t LWOmxNode::useBuffer(
+        OMX_U32 portIndex, const OMXBuffer &omxBuffer, buffer_id *buffer) {
+    CodecBuffer codecBuffer;
+    if (!wrapAs(&codecBuffer, omxBuffer)) {
+        return BAD_VALUE;
+    }
+    status_t fnStatus;
+    status_t transStatus = toStatusT(mBase->useBuffer(
+            portIndex,
+            codecBuffer,
+            [&fnStatus, buffer](Status status, uint32_t outBuffer) {
+                fnStatus = toStatusT(status);
+                *buffer = outBuffer;
+            }));
+    return transStatus == NO_ERROR ? fnStatus : transStatus;
+}
+
+status_t LWOmxNode::freeBuffer(
+        OMX_U32 portIndex, buffer_id buffer) {
+    return toStatusT(mBase->freeBuffer(portIndex, buffer));
+}
+
+status_t LWOmxNode::fillBuffer(
+        buffer_id buffer, const OMXBuffer &omxBuffer, int fenceFd) {
+    CodecBuffer codecBuffer;
+    if (!wrapAs(&codecBuffer, omxBuffer)) {
+        return BAD_VALUE;
+    }
+    native_handle_t* fenceNh = native_handle_create_from_fd(fenceFd);
+    if (!fenceNh) {
+        return NO_MEMORY;
+    }
+    status_t status = toStatusT(mBase->fillBuffer(
+            buffer, codecBuffer, fenceNh));
+    native_handle_close(fenceNh);
+    native_handle_delete(fenceNh);
+    return status;
+}
+
+status_t LWOmxNode::emptyBuffer(
+        buffer_id buffer, const OMXBuffer &omxBuffer,
+        OMX_U32 flags, OMX_TICKS timestamp, int fenceFd) {
+    CodecBuffer codecBuffer;
+    if (!wrapAs(&codecBuffer, omxBuffer)) {
+        return BAD_VALUE;
+    }
+    native_handle_t* fenceNh = native_handle_create_from_fd(fenceFd);
+    if (!fenceNh) {
+        return NO_MEMORY;
+    }
+    status_t status = toStatusT(mBase->emptyBuffer(
+            buffer,
+            codecBuffer,
+            flags,
+            toRawTicks(timestamp),
+            fenceNh));
+    native_handle_close(fenceNh);
+    native_handle_delete(fenceNh);
+    return status;
+}
+status_t LWOmxNode::getExtensionIndex(
+        const char *parameter_name,
+        OMX_INDEXTYPE *index) {
+    status_t fnStatus;
+    status_t transStatus = toStatusT(mBase->getExtensionIndex(
+            hidl_string(parameter_name),
+            [&fnStatus, index](Status status, uint32_t outIndex) {
+                fnStatus = toStatusT(status);
+                *index = toEnumIndexType(outIndex);
+            }));
+    return transStatus == NO_ERROR ? fnStatus : transStatus;
+}
+
+status_t LWOmxNode::dispatchMessage(const omx_message &lMsg) {
+    Message tMsg;
+    native_handle_t* nh;
+    if (!wrapAs(&tMsg, &nh, lMsg)) {
+        return NO_MEMORY;
+    }
+    status_t status = toStatusT(mBase->dispatchMessage(tMsg));
+    native_handle_close(nh);
+    native_handle_delete(nh);
+    return status;
+}
+
+// TODO: this is temporary, will be removed when quirks move to OMX side.
+status_t LWOmxNode::setQuirks(OMX_U32 quirks) {
+    return toStatusT(mBase->setQuirks(static_cast<uint32_t>(quirks)));;
+}
+
+// TWOmxNode
+TWOmxNode::TWOmxNode(sp<IOMXNode> const& base) : mBase(base) {
+}
+
+Return<Status> TWOmxNode::freeNode() {
+    return toStatus(mBase->freeNode());
+}
+
+Return<Status> TWOmxNode::sendCommand(uint32_t cmd, int32_t param) {
+    return toStatus(mBase->sendCommand(toEnumCommandType(cmd), param));
+}
+
+Return<void> TWOmxNode::getParameter(
+        uint32_t index, hidl_vec<uint8_t> const& inParams,
+        getParameter_cb _hidl_cb) {
+    hidl_vec<uint8_t> params(inParams);
+    Status status = toStatus(mBase->getParameter(
+            toEnumIndexType(index),
+            static_cast<void*>(params.data()),
+            params.size()));
+    _hidl_cb(status, params);
+    return Void();
+}
+
+Return<Status> TWOmxNode::setParameter(
+        uint32_t index, hidl_vec<uint8_t> const& inParams) {
+    hidl_vec<uint8_t> params(inParams);
+    return toStatus(mBase->setParameter(
+            toEnumIndexType(index),
+            static_cast<void const*>(params.data()),
+            params.size()));
+}
+
+Return<void> TWOmxNode::getConfig(
+        uint32_t index, const hidl_vec<uint8_t>& inConfig,
+        getConfig_cb _hidl_cb) {
+    hidl_vec<uint8_t> config(inConfig);
+    Status status = toStatus(mBase->getConfig(
+            toEnumIndexType(index),
+            static_cast<void*>(config.data()),
+            config.size()));
+    _hidl_cb(status, config);
+    return Void();
+}
+
+Return<Status> TWOmxNode::setConfig(
+        uint32_t index, const hidl_vec<uint8_t>& inConfig) {
+    hidl_vec<uint8_t> config(inConfig);
+    return toStatus(mBase->setConfig(
+            toEnumIndexType(index),
+            static_cast<void const*>(config.data()),
+            config.size()));
+}
+
+Return<Status> TWOmxNode::setPortMode(uint32_t portIndex, PortMode mode) {
+    return toStatus(mBase->setPortMode(portIndex, toIOMXPortMode(mode)));
+}
+
+Return<Status> TWOmxNode::prepareForAdaptivePlayback(
+        uint32_t portIndex, bool enable,
+        uint32_t maxFrameWidth, uint32_t maxFrameHeight) {
+    return toStatus(mBase->prepareForAdaptivePlayback(
+            portIndex,
+            toEnumBool(enable),
+            maxFrameWidth,
+            maxFrameHeight));
+}
+
+Return<void> TWOmxNode::configureVideoTunnelMode(
+        uint32_t portIndex, bool tunneled, uint32_t audioHwSync,
+        configureVideoTunnelMode_cb _hidl_cb) {
+    native_handle_t* sidebandHandle = nullptr;
+    Status status = toStatus(mBase->configureVideoTunnelMode(
+            portIndex,
+            toEnumBool(tunneled),
+            audioHwSync,
+            &sidebandHandle));
+    _hidl_cb(status, hidl_handle(sidebandHandle));
+    return Void();
+}
+
+Return<void> TWOmxNode::getGraphicBufferUsage(
+        uint32_t portIndex, getGraphicBufferUsage_cb _hidl_cb) {
+    OMX_U32 usage;
+    Status status = toStatus(mBase->getGraphicBufferUsage(
+            portIndex, &usage));
+    _hidl_cb(status, usage);
+    return Void();
+}
+
+Return<Status> TWOmxNode::setInputSurface(
+        const sp<IOmxBufferSource>& bufferSource) {
+    return toStatus(mBase->setInputSurface(new LWOmxBufferSource(
+            bufferSource)));
+}
+
+Return<void> TWOmxNode::allocateSecureBuffer(
+        uint32_t portIndex, uint64_t size,
+        allocateSecureBuffer_cb _hidl_cb) {
+    IOMX::buffer_id buffer;
+    void* bufferData;
+    sp<NativeHandle> nativeHandle;
+    Status status = toStatus(mBase->allocateSecureBuffer(
+            portIndex,
+            static_cast<size_t>(size),
+            &buffer,
+            &bufferData,
+            &nativeHandle));
+    _hidl_cb(status, buffer, nativeHandle->handle());
+    return Void();
+}
+
+Return<void> TWOmxNode::useBuffer(
+        uint32_t portIndex, const CodecBuffer& codecBuffer,
+        useBuffer_cb _hidl_cb) {
+    IOMX::buffer_id buffer;
+    OMXBuffer omxBuffer;
+    if (!convertTo(&omxBuffer, codecBuffer)) {
+        _hidl_cb(Status::BAD_VALUE, 0);
+        return Void();
+    }
+    Status status = toStatus(mBase->useBuffer(
+            portIndex, omxBuffer, &buffer));
+    _hidl_cb(status, buffer);
+    return Void();
+}
+
+Return<Status> TWOmxNode::freeBuffer(uint32_t portIndex, uint32_t buffer) {
+    return toStatus(mBase->freeBuffer(portIndex, buffer));
+}
+
+Return<Status> TWOmxNode::fillBuffer(
+        uint32_t buffer, const CodecBuffer& codecBuffer,
+        const hidl_handle& fence) {
+    OMXBuffer omxBuffer;
+    if (!convertTo(&omxBuffer, codecBuffer)) {
+        return Status::BAD_VALUE;
+    }
+    return toStatus(mBase->fillBuffer(
+            buffer,
+            omxBuffer,
+            dup(native_handle_read_fd(fence))));
+}
+
+Return<Status> TWOmxNode::emptyBuffer(
+        uint32_t buffer, const CodecBuffer& codecBuffer, uint32_t flags,
+        uint64_t timestampUs, const hidl_handle& fence) {
+    OMXBuffer omxBuffer;
+    if (!convertTo(&omxBuffer, codecBuffer)) {
+        return Status::BAD_VALUE;
+    }
+    return toStatus(mBase->emptyBuffer(
+            buffer,
+            omxBuffer,
+            flags,
+            toOMXTicks(timestampUs),
+            dup(native_handle_read_fd(fence))));
+}
+
+Return<void> TWOmxNode::getExtensionIndex(
+        const hidl_string& parameterName,
+        getExtensionIndex_cb _hidl_cb) {
+    OMX_INDEXTYPE index;
+    Status status = toStatus(mBase->getExtensionIndex(
+            parameterName, &index));
+    _hidl_cb(status, toRawIndexType(index));
+    return Void();
+}
+
+Return<Status> TWOmxNode::dispatchMessage(const Message& tMsg) {
+    omx_message lMsg;
+    if (!convertTo(&lMsg, tMsg)) {
+        return Status::BAD_VALUE;
+    }
+    return toStatus(mBase->dispatchMessage(lMsg));
+}
+
+Return<void> TWOmxNode::setQuirks(uint32_t quirks) {
+    mBase->setQuirks(static_cast<OMX_U32>(quirks));
+    return Void();
+}
+
+}  // namespace implementation
+}  // namespace V1_0
+}  // namespace omx
+}  // namespace media
+}  // namespace hardware
+}  // namespace android
diff --git a/media/libstagefright/omx/hal/1.0/impl/WOmxNode.h b/media/libstagefright/omx/hal/1.0/impl/WOmxNode.h
new file mode 100644
index 0000000..75816ba
--- /dev/null
+++ b/media/libstagefright/omx/hal/1.0/impl/WOmxNode.h
@@ -0,0 +1,167 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_MEDIA_OMX_V1_0_WOMXNODE_H
+#define ANDROID_HARDWARE_MEDIA_OMX_V1_0_WOMXNODE_H
+
+#include <hidl/MQDescriptor.h>
+#include <hidl/Status.h>
+
+#include <utils/Errors.h>
+
+#include "../../../../include/OMXNodeInstance.h"
+
+#include <android/hardware/media/omx/1.0/IOmxNode.h>
+#include <android/hardware/media/omx/1.0/IOmxObserver.h>
+
+namespace android {
+namespace hardware {
+namespace media {
+namespace omx {
+namespace V1_0 {
+namespace implementation {
+
+using ::android::hardware::media::omx::V1_0::CodecBuffer;
+using ::android::hardware::media::omx::V1_0::IOmxBufferSource;
+using ::android::hardware::media::omx::V1_0::IOmxNode;
+using ::android::hardware::media::omx::V1_0::IOmxObserver;
+using ::android::hardware::media::omx::V1_0::Message;
+using ::android::hardware::media::omx::V1_0::PortMode;
+using ::android::hardware::media::omx::V1_0::Status;
+using ::android::hidl::base::V1_0::IBase;
+using ::android::hardware::hidl_array;
+using ::android::hardware::hidl_memory;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::sp;
+
+/**
+ * Wrapper classes for conversion
+ * ==============================
+ *
+ * Naming convention:
+ * - LW = Legacy Wrapper --- It wraps a Treble object inside a legacy object.
+ * - TW = Treble Wrapper --- It wraps a legacy object inside a Treble object.
+ */
+
+struct LWOmxNode : public BnOMXNode {
+    sp<IOmxNode> mBase;
+    LWOmxNode(sp<IOmxNode> const& base);
+    status_t freeNode() override;
+    status_t sendCommand(
+            OMX_COMMANDTYPE cmd, OMX_S32 param) override;
+    status_t getParameter(
+            OMX_INDEXTYPE index, void *params, size_t size) override;
+    status_t setParameter(
+            OMX_INDEXTYPE index, const void *params, size_t size) override;
+    status_t getConfig(
+            OMX_INDEXTYPE index, void *params, size_t size) override;
+    status_t setConfig(
+            OMX_INDEXTYPE index, const void *params, size_t size) override;
+    status_t setPortMode(
+            OMX_U32 port_index, IOMX::PortMode mode) override;
+    status_t prepareForAdaptivePlayback(
+            OMX_U32 portIndex, OMX_BOOL enable,
+            OMX_U32 maxFrameWidth, OMX_U32 maxFrameHeight) override;
+    status_t configureVideoTunnelMode(
+            OMX_U32 portIndex, OMX_BOOL tunneled,
+            OMX_U32 audioHwSync, native_handle_t **sidebandHandle) override;
+    status_t getGraphicBufferUsage(
+            OMX_U32 port_index, OMX_U32* usage) override;
+    status_t setInputSurface(
+            const sp<IOMXBufferSource> &bufferSource) override;
+    status_t allocateSecureBuffer(
+            OMX_U32 port_index, size_t size, buffer_id *buffer,
+            void **buffer_data, sp<NativeHandle> *native_handle) override;
+    status_t useBuffer(
+            OMX_U32 port_index, const OMXBuffer &omxBuf,
+            buffer_id *buffer) override;
+    status_t freeBuffer(
+            OMX_U32 port_index, buffer_id buffer) override;
+    status_t fillBuffer(
+            buffer_id buffer, const OMXBuffer &omxBuf,
+            int fenceFd = -1) override;
+    status_t emptyBuffer(
+            buffer_id buffer, const OMXBuffer &omxBuf,
+            OMX_U32 flags, OMX_TICKS timestamp, int fenceFd = -1) override;
+    status_t getExtensionIndex(
+            const char *parameter_name,
+            OMX_INDEXTYPE *index) override;
+    status_t dispatchMessage(const omx_message &msg) override;
+
+    // TODO: this is temporary, will be removed when quirks move to OMX side.
+    status_t setQuirks(OMX_U32 quirks) override;
+};
+
+struct TWOmxNode : public IOmxNode {
+    sp<IOMXNode> mBase;
+    TWOmxNode(sp<IOMXNode> const& base);
+
+    Return<Status> freeNode() override;
+    Return<Status> sendCommand(uint32_t cmd, int32_t param) override;
+    Return<void> getParameter(
+            uint32_t index, hidl_vec<uint8_t> const& inParams,
+            getParameter_cb _hidl_cb) override;
+    Return<Status> setParameter(
+            uint32_t index, hidl_vec<uint8_t> const& params) override;
+    Return<void> getConfig(
+            uint32_t index, hidl_vec<uint8_t> const& inConfig,
+            getConfig_cb _hidl_cb) override;
+    Return<Status> setConfig(
+            uint32_t index, hidl_vec<uint8_t> const& config) override;
+    Return<Status> setPortMode(uint32_t portIndex, PortMode mode) override;
+    Return<Status> prepareForAdaptivePlayback(
+            uint32_t portIndex, bool enable,
+            uint32_t maxFrameWidth, uint32_t maxFrameHeight) override;
+    Return<void> configureVideoTunnelMode(
+            uint32_t portIndex, bool tunneled, uint32_t audioHwSync,
+            configureVideoTunnelMode_cb _hidl_cb) override;
+    Return<void> getGraphicBufferUsage(
+            uint32_t portIndex,
+            getGraphicBufferUsage_cb _hidl_cb) override;
+    Return<Status> setInputSurface(
+            sp<IOmxBufferSource> const& bufferSource) override;
+    Return<void> allocateSecureBuffer(
+            uint32_t portIndex, uint64_t size,
+            allocateSecureBuffer_cb _hidl_cb) override;
+    Return<void> useBuffer(
+            uint32_t portIndex, CodecBuffer const& codecBuffer,
+            useBuffer_cb _hidl_cb) override;
+    Return<Status> freeBuffer(uint32_t portIndex, uint32_t buffer) override;
+    Return<Status> fillBuffer(
+            uint32_t buffer, CodecBuffer const& codecBuffer,
+            const hidl_handle& fence) override;
+    Return<Status> emptyBuffer(
+            uint32_t buffer, CodecBuffer const& codecBuffer,
+            uint32_t flags, uint64_t timestampUs,
+            hidl_handle const& fence) override;
+    Return<void> getExtensionIndex(
+            hidl_string const& parameterName,
+            getExtensionIndex_cb _hidl_cb) override;
+    Return<Status> dispatchMessage(Message const& msg) override;
+    Return<void> setQuirks(uint32_t quirks) override;
+};
+
+}  // namespace implementation
+}  // namespace V1_0
+}  // namespace omx
+}  // namespace media
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_MEDIA_OMX_V1_0_WOMXNODE_H
diff --git a/media/libstagefright/omx/hal/1.0/impl/WOmxObserver.cpp b/media/libstagefright/omx/hal/1.0/impl/WOmxObserver.cpp
new file mode 100644
index 0000000..354db29
--- /dev/null
+++ b/media/libstagefright/omx/hal/1.0/impl/WOmxObserver.cpp
@@ -0,0 +1,77 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "WOmxObserver-impl"
+
+#include <vector>
+
+#include <android-base/logging.h>
+#include <cutils/native_handle.h>
+#include <binder/Binder.h>
+
+#include "WOmxObserver.h"
+#include "Conversion.h"
+
+namespace android {
+namespace hardware {
+namespace media {
+namespace omx {
+namespace V1_0 {
+namespace implementation {
+
+// LWOmxObserver
+LWOmxObserver::LWOmxObserver(sp<IOmxObserver> const& base) : mBase(base) {
+}
+
+void LWOmxObserver::onMessages(std::list<omx_message> const& lMessages) {
+    hidl_vec<Message> tMessages;
+    std::vector<native_handle_t*> handles(lMessages.size());
+    tMessages.resize(lMessages.size());
+    size_t i = 0;
+    for (auto const& message : lMessages) {
+        wrapAs(&tMessages[i], &handles[i], message);
+        ++i;
+    }
+    auto transResult = mBase->onMessages(tMessages);
+    if (!transResult.isOk()) {
+        LOG(ERROR) << "LWOmxObserver::onMessages - Transaction failed";
+    }
+    for (auto& handle : handles) {
+        native_handle_close(handle);
+        native_handle_delete(handle);
+    }
+}
+
+// TWOmxObserver
+TWOmxObserver::TWOmxObserver(sp<IOMXObserver> const& base) : mBase(base) {
+}
+
+Return<void> TWOmxObserver::onMessages(const hidl_vec<Message>& tMessages) {
+    std::list<omx_message> lMessages;
+    for (size_t i = 0; i < tMessages.size(); ++i) {
+        lMessages.push_back(omx_message{});
+        convertTo(&lMessages.back(), tMessages[i]);
+    }
+    mBase->onMessages(lMessages);
+    return Return<void>();
+}
+
+}  // namespace implementation
+}  // namespace V1_0
+}  // namespace omx
+}  // namespace media
+}  // namespace hardware
+}  // namespace android
diff --git a/media/libstagefright/omx/hal/1.0/impl/WOmxObserver.h b/media/libstagefright/omx/hal/1.0/impl/WOmxObserver.h
new file mode 100644
index 0000000..7075513
--- /dev/null
+++ b/media/libstagefright/omx/hal/1.0/impl/WOmxObserver.h
@@ -0,0 +1,79 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_MEDIA_OMX_V1_0_WOMXOBSERVER_H
+#define ANDROID_HARDWARE_MEDIA_OMX_V1_0_WOMXOBSERVER_H
+
+#include <list>
+
+#include <hidl/MQDescriptor.h>
+#include <hidl/Status.h>
+
+#include <media/IOMX.h>
+
+#include <android/hardware/media/omx/1.0/IOmxObserver.h>
+
+namespace android {
+namespace hardware {
+namespace media {
+namespace omx {
+namespace V1_0 {
+namespace implementation {
+
+using ::android::hardware::media::omx::V1_0::IOmxObserver;
+using ::android::hardware::media::omx::V1_0::Message;
+using ::android::hidl::base::V1_0::IBase;
+using ::android::hardware::hidl_array;
+using ::android::hardware::hidl_memory;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::sp;
+
+using ::android::IOMXObserver;
+using ::android::BnOMXObserver;
+using ::android::omx_message;
+
+/**
+ * Wrapper classes for conversion
+ * ==============================
+ *
+ * Naming convention:
+ * - LW = Legacy Wrapper --- It wraps a Treble object inside a legacy object.
+ * - TW = Treble Wrapper --- It wraps a legacy object inside a Treble object.
+ */
+
+struct LWOmxObserver : public BnOMXObserver {
+    sp<IOmxObserver> mBase;
+    LWOmxObserver(sp<IOmxObserver> const& base);
+    void onMessages(std::list<omx_message> const& lMessages) override;
+};
+
+struct TWOmxObserver : public IOmxObserver {
+    sp<IOMXObserver> mBase;
+    TWOmxObserver(sp<IOMXObserver> const& base);
+    Return<void> onMessages(const hidl_vec<Message>& tMessages) override;
+};
+
+}  // namespace implementation
+}  // namespace V1_0
+}  // namespace omx
+}  // namespace media
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_MEDIA_OMX_V1_0_WOMXOBSERVER_H
diff --git a/media/libstagefright/omx/hal/1.0/impl/WOmxProducerListener.cpp b/media/libstagefright/omx/hal/1.0/impl/WOmxProducerListener.cpp
new file mode 100644
index 0000000..a5eed35
--- /dev/null
+++ b/media/libstagefright/omx/hal/1.0/impl/WOmxProducerListener.cpp
@@ -0,0 +1,60 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "WOmxProducerListener.h"
+
+namespace android {
+namespace hardware {
+namespace media {
+namespace omx {
+namespace V1_0 {
+namespace implementation {
+
+// TWOmxProducerListener
+TWOmxProducerListener::TWOmxProducerListener(
+        sp<IProducerListener> const& base):
+    mBase(base) {
+}
+
+Return<void> TWOmxProducerListener::onBufferReleased() {
+    mBase->onBufferReleased();
+    return Void();
+}
+
+Return<bool> TWOmxProducerListener::needsReleaseNotify() {
+    return mBase->needsReleaseNotify();
+}
+
+// LWOmxProducerListener
+LWOmxProducerListener::LWOmxProducerListener(
+        sp<IOmxProducerListener> const& base):
+    mBase(base) {
+}
+
+void LWOmxProducerListener::onBufferReleased() {
+    mBase->onBufferReleased();
+}
+
+bool LWOmxProducerListener::needsReleaseNotify() {
+    return static_cast<bool>(mBase->needsReleaseNotify());
+}
+
+}  // namespace implementation
+}  // namespace V1_0
+}  // namespace omx
+}  // namespace media
+}  // namespace hardware
+}  // namespace android
diff --git a/media/libstagefright/omx/hal/1.0/impl/WOmxProducerListener.h b/media/libstagefright/omx/hal/1.0/impl/WOmxProducerListener.h
new file mode 100644
index 0000000..e60032e
--- /dev/null
+++ b/media/libstagefright/omx/hal/1.0/impl/WOmxProducerListener.h
@@ -0,0 +1,70 @@
+/*
+ * Copyright 2016, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_MEDIA_OMX_V1_0_WOMXPRODUCERLISTENER_H
+#define ANDROID_HARDWARE_MEDIA_OMX_V1_0_WOMXPRODUCERLISTENER_H
+
+#include <hidl/MQDescriptor.h>
+#include <hidl/Status.h>
+
+#include <binder/IBinder.h>
+#include <gui/IProducerListener.h>
+
+#include <android/hardware/media/omx/1.0/IOmxProducerListener.h>
+
+namespace android {
+namespace hardware {
+namespace media {
+namespace omx {
+namespace V1_0 {
+namespace implementation {
+
+using ::android::hardware::media::omx::V1_0::IOmxProducerListener;
+using ::android::hidl::base::V1_0::IBase;
+using ::android::hardware::hidl_array;
+using ::android::hardware::hidl_memory;
+using ::android::hardware::hidl_string;
+using ::android::hardware::hidl_vec;
+using ::android::hardware::Return;
+using ::android::hardware::Void;
+using ::android::sp;
+
+using ::android::IProducerListener;
+using ::android::BnProducerListener;
+
+struct TWOmxProducerListener : public IOmxProducerListener {
+    sp<IProducerListener> mBase;
+    TWOmxProducerListener(sp<IProducerListener> const& base);
+    Return<void> onBufferReleased() override;
+    Return<bool> needsReleaseNotify() override;
+};
+
+class LWOmxProducerListener : public BnProducerListener {
+public:
+    sp<IOmxProducerListener> mBase;
+    LWOmxProducerListener(sp<IOmxProducerListener> const& base);
+    void onBufferReleased() override;
+    bool needsReleaseNotify() override;
+};
+
+}  // namespace implementation
+}  // namespace V1_0
+}  // namespace omx
+}  // namespace media
+}  // namespace hardware
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_MEDIA_OMX_V1_0_WOMXPRODUCERLISTENER_H
diff --git a/media/libstagefright/omx/tests/Android.mk b/media/libstagefright/omx/tests/Android.mk
index 02e97f1..5941b94 100644
--- a/media/libstagefright/omx/tests/Android.mk
+++ b/media/libstagefright/omx/tests/Android.mk
@@ -2,17 +2,28 @@
 include $(CLEAR_VARS)
 
 LOCAL_SRC_FILES =       \
-	OMXHarness.cpp  \
+        OMXHarness.cpp  \
 
 LOCAL_SHARED_LIBRARIES := \
-	libstagefright libbinder libmedia libutils liblog libstagefright_foundation
+        libstagefright \
+        libbinder \
+        libmedia \
+        libutils \
+        liblog \
+        libstagefright_foundation \
+        libcutils \
+        libhidlbase \
+        libhidlmemory \
+        android.hidl.allocator@1.0 \
+        android.hidl.memory@1.0 \
+        android.hardware.media.omx@1.0 \
 
 LOCAL_C_INCLUDES := \
-	$(TOP)/frameworks/av/media/libstagefright \
-	$(TOP)/frameworks/native/include/media/openmax
+        $(TOP)/frameworks/av/media/libstagefright \
+        $(TOP)/frameworks/native/include/media/openmax \
+        $(TOP)/system/libhidl/base/include \
 
 LOCAL_CFLAGS += -Werror -Wall
-LOCAL_CLANG := true
 
 LOCAL_MODULE := omx_tests
 
@@ -29,16 +40,15 @@
 LOCAL_MODULE_TAGS := tests
 
 LOCAL_SRC_FILES := \
-	FrameDropper_test.cpp \
+        FrameDropper_test.cpp \
 
 LOCAL_SHARED_LIBRARIES := \
-	libstagefright_omx \
-	libutils \
+        libstagefright_omx \
+        libutils \
 
 LOCAL_C_INCLUDES := \
-	frameworks/av/media/libstagefright/omx \
+        frameworks/av/media/libstagefright/omx \
 
 LOCAL_CFLAGS += -Werror -Wall
-LOCAL_CLANG := true
 
 include $(BUILD_NATIVE_TEST)
diff --git a/media/libstagefright/omx/tests/OMXHarness.cpp b/media/libstagefright/omx/tests/OMXHarness.cpp
index 50bb0de..8817cf9 100644
--- a/media/libstagefright/omx/tests/OMXHarness.cpp
+++ b/media/libstagefright/omx/tests/OMXHarness.cpp
@@ -38,13 +38,35 @@
 #include <media/stagefright/MediaSource.h>
 #include <media/stagefright/MetaData.h>
 #include <media/stagefright/SimpleDecodingSource.h>
+#include <media/OMXBuffer.h>
+#include <android/hardware/media/omx/1.0/IOmx.h>
+#include <omx/hal/1.0/utils/WOmx.h>
 
 #define DEFAULT_TIMEOUT         500000
 
 namespace android {
 
+/////////////////////////////////////////////////////////////////////
+
+struct Harness::CodecObserver : public BnOMXObserver {
+    CodecObserver(const sp<Harness> &harness, int32_t gen)
+            : mHarness(harness), mGeneration(gen) {}
+
+    void onMessages(const std::list<omx_message> &messages) override;
+
+private:
+    sp<Harness> mHarness;
+    int32_t mGeneration;
+};
+
+void Harness::CodecObserver::onMessages(const std::list<omx_message> &messages) {
+    mHarness->handleMessages(mGeneration, messages);
+}
+
+/////////////////////////////////////////////////////////////////////
+
 Harness::Harness()
-    : mInitCheck(NO_INIT) {
+    : mInitCheck(NO_INIT), mUseTreble(false) {
     mInitCheck = initOMX();
 }
 
@@ -56,26 +78,38 @@
 }
 
 status_t Harness::initOMX() {
-    sp<IServiceManager> sm = defaultServiceManager();
-    sp<IBinder> binder = sm->getService(String16("media.codec"));
-    sp<IMediaCodecService> service = interface_cast<IMediaCodecService>(binder);
-    mOMX = service->getOMX();
+    int32_t trebleOmx = property_get_int32("persist.media.treble_omx", -1);
+    if ((trebleOmx == 1) || ((trebleOmx == -1) &&
+            property_get_bool("persist.hal.binderization", 0))) {
+        using namespace ::android::hardware::media::omx::V1_0;
+        sp<IOmx> tOmx = IOmx::getService();
+        if (tOmx == nullptr) {
+            return NO_INIT;
+        }
+        mOMX = new utils::LWOmx(tOmx);
+        mUseTreble = true;
+    } else {
+        sp<IServiceManager> sm = defaultServiceManager();
+        sp<IBinder> binder = sm->getService(String16("media.codec"));
+        sp<IMediaCodecService> service = interface_cast<IMediaCodecService>(binder);
+        mOMX = service->getOMX();
+        mUseTreble = false;
+    }
 
     return mOMX != 0 ? OK : NO_INIT;
 }
 
-void Harness::onMessages(const std::list<omx_message> &messages) {
+void Harness::handleMessages(int32_t gen, const std::list<omx_message> &messages) {
     Mutex::Autolock autoLock(mLock);
     for (std::list<omx_message>::const_iterator it = messages.cbegin(); it != messages.cend(); ) {
         mMessageQueue.push_back(*it++);
+        mLastMsgGeneration = gen;
     }
     mMessageAddedCondition.signal();
 }
 
-status_t Harness::dequeueMessageForNode(
-        IOMX::node_id node, omx_message *msg, int64_t timeoutUs) {
-    return dequeueMessageForNodeIgnoringBuffers(
-            node, NULL, NULL, msg, timeoutUs);
+status_t Harness::dequeueMessageForNode(omx_message *msg, int64_t timeoutUs) {
+    return dequeueMessageForNodeIgnoringBuffers(NULL, NULL, msg, timeoutUs);
 }
 
 // static
@@ -120,7 +154,6 @@
 }
 
 status_t Harness::dequeueMessageForNodeIgnoringBuffers(
-        IOMX::node_id node,
         Vector<Buffer> *inputBuffers,
         Vector<Buffer> *outputBuffers,
         omx_message *msg, int64_t timeoutUs) {
@@ -128,21 +161,22 @@
 
     for (;;) {
         Mutex::Autolock autoLock(mLock);
+        // Messages are queued in batches, if the last batch queued is
+        // from a node that already expired, discard those messages.
+        if (mLastMsgGeneration < mCurGeneration) {
+            mMessageQueue.clear();
+        }
         List<omx_message>::iterator it = mMessageQueue.begin();
         while (it != mMessageQueue.end()) {
-            if ((*it).node == node) {
-                if (handleBufferMessage(*it, inputBuffers, outputBuffers)) {
-                    it = mMessageQueue.erase(it);
-                    continue;
-                }
-
-                *msg = *it;
-                mMessageQueue.erase(it);
-
-                return OK;
+            if (handleBufferMessage(*it, inputBuffers, outputBuffers)) {
+                it = mMessageQueue.erase(it);
+                continue;
             }
 
-            ++it;
+            *msg = *it;
+            mMessageQueue.erase(it);
+
+            return OK;
         }
 
         status_t err = (timeoutUs < 0)
@@ -158,16 +192,15 @@
 }
 
 status_t Harness::getPortDefinition(
-        IOMX::node_id node, OMX_U32 portIndex,
-        OMX_PARAM_PORTDEFINITIONTYPE *def) {
+        OMX_U32 portIndex, OMX_PARAM_PORTDEFINITIONTYPE *def) {
     def->nSize = sizeof(*def);
     def->nVersion.s.nVersionMajor = 1;
     def->nVersion.s.nVersionMinor = 0;
     def->nVersion.s.nRevision = 0;
     def->nVersion.s.nStep = 0;
     def->nPortIndex = portIndex;
-    return mOMX->getParameter(
-            node, OMX_IndexParamPortDefinition, def, sizeof(*def));
+    return mOMXNode->getParameter(
+            OMX_IndexParamPortDefinition, def, sizeof(*def));
 }
 
 #define EXPECT(condition, info) \
@@ -179,24 +212,37 @@
     EXPECT((err) == OK, info " failed")
 
 status_t Harness::allocatePortBuffers(
-        const sp<MemoryDealer> &dealer,
-        IOMX::node_id node, OMX_U32 portIndex,
-        Vector<Buffer> *buffers) {
+        OMX_U32 portIndex, Vector<Buffer> *buffers) {
     buffers->clear();
 
     OMX_PARAM_PORTDEFINITIONTYPE def;
-    status_t err = getPortDefinition(node, portIndex, &def);
+    status_t err = getPortDefinition(portIndex, &def);
     EXPECT_SUCCESS(err, "getPortDefinition");
 
     for (OMX_U32 i = 0; i < def.nBufferCountActual; ++i) {
         Buffer buffer;
-        buffer.mMemory = dealer->allocate(def.nBufferSize);
         buffer.mFlags = 0;
-        CHECK(buffer.mMemory != NULL);
+        if (mUseTreble) {
+            bool success;
+            auto transStatus = mAllocator->allocate(def.nBufferSize,
+                    [&success, &buffer](
+                            bool s,
+                            hidl_memory const& m) {
+                        success = s;
+                        buffer.mHidlMemory = m;
+                    });
+            EXPECT(transStatus.isOk(),
+                    "Cannot call allocator");
+            EXPECT(success,
+                    "Cannot allocate memory");
+            err = mOMXNode->useBuffer(portIndex, buffer.mHidlMemory, &buffer.mID);
+        } else {
+            buffer.mMemory = mDealer->allocate(def.nBufferSize);
+            CHECK(buffer.mMemory != NULL);
+            err = mOMXNode->useBuffer(portIndex, buffer.mMemory, &buffer.mID);
+        }
 
-        err = mOMX->allocateBufferWithBackup(
-                node, portIndex, buffer.mMemory, &buffer.mID, buffer.mMemory->size());
-        EXPECT_SUCCESS(err, "allocateBuffer");
+        EXPECT_SUCCESS(err, "useBuffer");
 
         buffers->push(buffer);
     }
@@ -204,7 +250,7 @@
     return OK;
 }
 
-status_t Harness::setRole(IOMX::node_id node, const char *role) {
+status_t Harness::setRole(const char *role) {
     OMX_PARAM_COMPONENTROLETYPE params;
     params.nSize = sizeof(params);
     params.nVersion.s.nVersionMajor = 1;
@@ -214,31 +260,31 @@
     strncpy((char *)params.cRole, role, OMX_MAX_STRINGNAME_SIZE - 1);
     params.cRole[OMX_MAX_STRINGNAME_SIZE - 1] = '\0';
 
-    return mOMX->setParameter(
-            node, OMX_IndexParamStandardComponentRole,
+    return mOMXNode->setParameter(
+            OMX_IndexParamStandardComponentRole,
             &params, sizeof(params));
 }
 
 struct NodeReaper {
-    NodeReaper(const sp<Harness> &harness, IOMX::node_id node)
+    NodeReaper(const sp<Harness> &harness, const sp<IOMXNode> &omxNode)
         : mHarness(harness),
-          mNode(node) {
+          mOMXNode(omxNode) {
     }
 
     ~NodeReaper() {
-        if (mNode != 0) {
-            mHarness->mOMX->freeNode(mNode);
-            mNode = 0;
+        if (mOMXNode != 0) {
+            mOMXNode->freeNode();
+            mOMXNode = NULL;
         }
     }
 
     void disarm() {
-        mNode = 0;
+        mOMXNode = NULL;
     }
 
 private:
     sp<Harness> mHarness;
-    IOMX::node_id mNode;
+    sp<IOMXNode> mOMXNode;
 
     NodeReaper(const NodeReaper &);
     NodeReaper &operator=(const NodeReaper &);
@@ -263,24 +309,30 @@
         return OK;
     }
 
-    sp<MemoryDealer> dealer = new MemoryDealer(16 * 1024 * 1024, "OMXHarness");
-    IOMX::node_id node;
+    if (mUseTreble) {
+        mAllocator = IAllocator::getService("ashmem");
+        EXPECT(mAllocator != nullptr,
+                "Cannot obtain hidl AshmemAllocator");
+    } else {
+        mDealer = new MemoryDealer(16 * 1024 * 1024, "OMXHarness");
+    }
 
-    status_t err =
-        mOMX->allocateNode(componentName, this, NULL, &node);
+    sp<CodecObserver> observer = new CodecObserver(this, ++mCurGeneration);
+
+    status_t err = mOMX->allocateNode(componentName, observer, &mOMXNode);
     EXPECT_SUCCESS(err, "allocateNode");
 
-    NodeReaper reaper(this, node);
+    NodeReaper reaper(this, mOMXNode);
 
-    err = setRole(node, componentRole);
+    err = setRole(componentRole);
     EXPECT_SUCCESS(err, "setRole");
 
     // Initiate transition Loaded->Idle
-    err = mOMX->sendCommand(node, OMX_CommandStateSet, OMX_StateIdle);
+    err = mOMXNode->sendCommand(OMX_CommandStateSet, OMX_StateIdle);
     EXPECT_SUCCESS(err, "sendCommand(go-to-Idle)");
 
     omx_message msg;
-    err = dequeueMessageForNode(node, &msg, DEFAULT_TIMEOUT);
+    err = dequeueMessageForNode(&msg, DEFAULT_TIMEOUT);
     // Make sure node doesn't just transition to idle before we are done
     // allocating all input and output buffers.
     EXPECT(err == TIMED_OUT,
@@ -289,17 +341,17 @@
 
     // Now allocate buffers.
     Vector<Buffer> inputBuffers;
-    err = allocatePortBuffers(dealer, node, 0, &inputBuffers);
+    err = allocatePortBuffers(0, &inputBuffers);
     EXPECT_SUCCESS(err, "allocatePortBuffers(input)");
 
-    err = dequeueMessageForNode(node, &msg, DEFAULT_TIMEOUT);
+    err = dequeueMessageForNode(&msg, DEFAULT_TIMEOUT);
     CHECK_EQ(err, (status_t)TIMED_OUT);
 
     Vector<Buffer> outputBuffers;
-    err = allocatePortBuffers(dealer, node, 1, &outputBuffers);
+    err = allocatePortBuffers(1, &outputBuffers);
     EXPECT_SUCCESS(err, "allocatePortBuffers(output)");
 
-    err = dequeueMessageForNode(node, &msg, DEFAULT_TIMEOUT);
+    err = dequeueMessageForNode(&msg, DEFAULT_TIMEOUT);
     EXPECT(err == OK
             && msg.type == omx_message::EVENT
             && msg.u.event_data.event == OMX_EventCmdComplete
@@ -309,10 +361,10 @@
            "after all input and output buffers were allocated.");
 
     // Initiate transition Idle->Executing
-    err = mOMX->sendCommand(node, OMX_CommandStateSet, OMX_StateExecuting);
+    err = mOMXNode->sendCommand(OMX_CommandStateSet, OMX_StateExecuting);
     EXPECT_SUCCESS(err, "sendCommand(go-to-Executing)");
 
-    err = dequeueMessageForNode(node, &msg, DEFAULT_TIMEOUT);
+    err = dequeueMessageForNode(&msg, DEFAULT_TIMEOUT);
     EXPECT(err == OK
             && msg.type == omx_message::EVENT
             && msg.u.event_data.event == OMX_EventCmdComplete
@@ -322,17 +374,17 @@
            "executing state.");
 
     for (size_t i = 0; i < outputBuffers.size(); ++i) {
-        err = mOMX->fillBuffer(node, outputBuffers[i].mID);
+        err = mOMXNode->fillBuffer(outputBuffers[i].mID, OMXBuffer::sPreset);
         EXPECT_SUCCESS(err, "fillBuffer");
 
         outputBuffers.editItemAt(i).mFlags |= kBufferBusy;
     }
 
-    err = mOMX->sendCommand(node, OMX_CommandFlush, 1);
+    err = mOMXNode->sendCommand(OMX_CommandFlush, 1);
     EXPECT_SUCCESS(err, "sendCommand(flush-output-port)");
 
     err = dequeueMessageForNodeIgnoringBuffers(
-            node, &inputBuffers, &outputBuffers, &msg, DEFAULT_TIMEOUT);
+            &inputBuffers, &outputBuffers, &msg, DEFAULT_TIMEOUT);
     EXPECT(err == OK
             && msg.type == omx_message::EVENT
             && msg.u.event_data.event == OMX_EventCmdComplete
@@ -347,18 +399,18 @@
     }
 
     for (size_t i = 0; i < outputBuffers.size(); ++i) {
-        err = mOMX->fillBuffer(node, outputBuffers[i].mID);
+        err = mOMXNode->fillBuffer(outputBuffers[i].mID, OMXBuffer::sPreset);
         EXPECT_SUCCESS(err, "fillBuffer");
 
         outputBuffers.editItemAt(i).mFlags |= kBufferBusy;
     }
 
     // Initiate transition Executing->Idle
-    err = mOMX->sendCommand(node, OMX_CommandStateSet, OMX_StateIdle);
+    err = mOMXNode->sendCommand(OMX_CommandStateSet, OMX_StateIdle);
     EXPECT_SUCCESS(err, "sendCommand(go-to-Idle)");
 
     err = dequeueMessageForNodeIgnoringBuffers(
-            node, &inputBuffers, &outputBuffers, &msg, DEFAULT_TIMEOUT);
+            &inputBuffers, &outputBuffers, &msg, DEFAULT_TIMEOUT);
     EXPECT(err == OK
             && msg.type == omx_message::EVENT
             && msg.u.event_data.event == OMX_EventCmdComplete
@@ -382,28 +434,28 @@
     }
 
     // Initiate transition Idle->Loaded
-    err = mOMX->sendCommand(node, OMX_CommandStateSet, OMX_StateLoaded);
+    err = mOMXNode->sendCommand(OMX_CommandStateSet, OMX_StateLoaded);
     EXPECT_SUCCESS(err, "sendCommand(go-to-Loaded)");
 
     // Make sure node doesn't just transition to loaded before we are done
     // freeing all input and output buffers.
-    err = dequeueMessageForNode(node, &msg, DEFAULT_TIMEOUT);
+    err = dequeueMessageForNode(&msg, DEFAULT_TIMEOUT);
     CHECK_EQ(err, (status_t)TIMED_OUT);
 
     for (size_t i = 0; i < inputBuffers.size(); ++i) {
-        err = mOMX->freeBuffer(node, 0, inputBuffers[i].mID);
+        err = mOMXNode->freeBuffer(0, inputBuffers[i].mID);
         EXPECT_SUCCESS(err, "freeBuffer");
     }
 
-    err = dequeueMessageForNode(node, &msg, DEFAULT_TIMEOUT);
+    err = dequeueMessageForNode(&msg, DEFAULT_TIMEOUT);
     CHECK_EQ(err, (status_t)TIMED_OUT);
 
     for (size_t i = 0; i < outputBuffers.size(); ++i) {
-        err = mOMX->freeBuffer(node, 1, outputBuffers[i].mID);
+        err = mOMXNode->freeBuffer(1, outputBuffers[i].mID);
         EXPECT_SUCCESS(err, "freeBuffer");
     }
 
-    err = dequeueMessageForNode(node, &msg, DEFAULT_TIMEOUT);
+    err = dequeueMessageForNode(&msg, DEFAULT_TIMEOUT);
     EXPECT(err == OK
             && msg.type == omx_message::EVENT
             && msg.u.event_data.event == OMX_EventCmdComplete
@@ -412,12 +464,12 @@
            "Component did not properly transition to from idle to "
            "loaded state after freeing all input and output buffers.");
 
-    err = mOMX->freeNode(node);
+    err = mOMXNode->freeNode();
     EXPECT_SUCCESS(err, "freeNode");
 
     reaper.disarm();
 
-    node = 0;
+    mOMXNode = NULL;
 
     return OK;
 }
@@ -784,7 +836,6 @@
     using namespace android;
 
     android::ProcessState::self()->startThreadPool();
-    DataSource::RegisterDefaultSniffers();
 
     const char *me = argv[0];
 
diff --git a/media/libstagefright/omx/tests/OMXHarness.h b/media/libstagefright/omx/tests/OMXHarness.h
index 1ebf3aa..4fc0f79 100644
--- a/media/libstagefright/omx/tests/OMXHarness.h
+++ b/media/libstagefright/omx/tests/OMXHarness.h
@@ -23,19 +23,25 @@
 #include <utils/Vector.h>
 #include <utils/threads.h>
 
+#include <binder/MemoryDealer.h>
+#include <android/hidl/allocator/1.0/IAllocator.h>
+#include <android/hidl/memory/1.0/IMemory.h>
 #include <OMX_Component.h>
 
 namespace android {
 
 class MemoryDealer;
 
-struct Harness : public BnOMXObserver {
+struct Harness : public RefBase {
+    typedef hidl::memory::V1_0::IMemory TMemory;
+    typedef hardware::hidl_memory hidl_memory;
     enum BufferFlags {
         kBufferBusy = 1
     };
     struct Buffer {
         IOMX::buffer_id mID;
         sp<IMemory> mMemory;
+        hidl_memory mHidlMemory;
         uint32_t mFlags;
     };
 
@@ -43,25 +49,20 @@
 
     status_t initCheck() const;
 
-    status_t dequeueMessageForNode(
-            IOMX::node_id node, omx_message *msg, int64_t timeoutUs = -1);
+    status_t dequeueMessageForNode(omx_message *msg, int64_t timeoutUs = -1);
 
     status_t dequeueMessageForNodeIgnoringBuffers(
-            IOMX::node_id node,
             Vector<Buffer> *inputBuffers,
             Vector<Buffer> *outputBuffers,
             omx_message *msg, int64_t timeoutUs = -1);
 
     status_t getPortDefinition(
-            IOMX::node_id node, OMX_U32 portIndex,
-            OMX_PARAM_PORTDEFINITIONTYPE *def);
+            OMX_U32 portIndex, OMX_PARAM_PORTDEFINITIONTYPE *def);
 
     status_t allocatePortBuffers(
-            const sp<MemoryDealer> &dealer,
-            IOMX::node_id node, OMX_U32 portIndex,
-            Vector<Buffer> *buffers);
+            OMX_U32 portIndex, Vector<Buffer> *buffers);
 
-    status_t setRole(IOMX::node_id node, const char *role);
+    status_t setRole(const char *role);
 
     status_t testStateTransitions(
             const char *componentName, const char *componentRole);
@@ -74,20 +75,27 @@
 
     status_t testAll();
 
-    virtual void onMessages(const std::list<omx_message> &messages);
-
 protected:
     virtual ~Harness();
 
 private:
+    typedef hidl::allocator::V1_0::IAllocator IAllocator;
+
     friend struct NodeReaper;
+    struct CodecObserver;
 
     Mutex mLock;
 
     status_t mInitCheck;
     sp<IOMX> mOMX;
+    sp<IOMXNode> mOMXNode;
     List<omx_message> mMessageQueue;
     Condition mMessageAddedCondition;
+    int32_t mLastMsgGeneration;
+    int32_t mCurGeneration;
+    bool mUseTreble;
+    sp<MemoryDealer> mDealer;
+    sp<IAllocator> mAllocator;
 
     status_t initOMX();
 
@@ -96,6 +104,8 @@
             Vector<Buffer> *inputBuffers,
             Vector<Buffer> *outputBuffers);
 
+    void handleMessages(int32_t gen, const std::list<omx_message> &messages);
+
     Harness(const Harness &);
     Harness &operator=(const Harness &);
 };
diff --git a/media/libstagefright/rtsp/APacketSource.cpp b/media/libstagefright/rtsp/APacketSource.cpp
index cfafaa7..8ba9e02 100644
--- a/media/libstagefright/rtsp/APacketSource.cpp
+++ b/media/libstagefright/rtsp/APacketSource.cpp
@@ -418,7 +418,7 @@
     if (sessionDesc->getDurationUs(&durationUs)) {
         mFormat->setInt64(kKeyDuration, durationUs);
     } else {
-        mFormat->setInt64(kKeyDuration, 60 * 60 * 1000000ll);
+        mFormat->setInt64(kKeyDuration, -1ll);
     }
 
     mInitCheck = OK;
diff --git a/media/libstagefright/rtsp/ASessionDescription.cpp b/media/libstagefright/rtsp/ASessionDescription.cpp
index 8b0331a..325084c 100644
--- a/media/libstagefright/rtsp/ASessionDescription.cpp
+++ b/media/libstagefright/rtsp/ASessionDescription.cpp
@@ -17,7 +17,6 @@
 //#define LOG_NDEBUG 0
 #define LOG_TAG "ASessionDescription"
 #include <utils/Log.h>
-#include <cutils/log.h>
 
 #include "ASessionDescription.h"
 
@@ -212,7 +211,7 @@
 
     *PT = x;
 
-    char key[32];
+    char key[20];
     snprintf(key, sizeof(key), "a=rtpmap:%lu", x);
     if (findAttribute(index, key, desc)) {
         snprintf(key, sizeof(key), "a=fmtp:%lu", x);
@@ -231,11 +230,8 @@
     *width = 0;
     *height = 0;
 
-    char key[33];
+    char key[20];
     snprintf(key, sizeof(key), "a=framesize:%lu", PT);
-    if (PT > 9999999) {
-        android_errorWriteLog(0x534e4554, "25747670");
-    }
     AString value;
     if (!findAttribute(index, key, &value)) {
         return false;
diff --git a/media/libstagefright/rtsp/Android.mk b/media/libstagefright/rtsp/Android.mk
index 35301ce..3472e49 100644
--- a/media/libstagefright/rtsp/Android.mk
+++ b/media/libstagefright/rtsp/Android.mk
@@ -32,7 +32,6 @@
 endif
 
 LOCAL_CFLAGS += -Werror -Wall
-LOCAL_CLANG := true
 LOCAL_SANITIZE := unsigned-integer-overflow signed-integer-overflow
 
 LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk
@@ -58,7 +57,6 @@
 	$(TOP)/frameworks/native/include/media/openmax
 
 LOCAL_CFLAGS += -Wno-multichar -Werror -Wall
-LOCAL_CLANG := true
 LOCAL_SANITIZE := signed-integer-overflow
 
 LOCAL_MODULE_TAGS := optional
diff --git a/media/libstagefright/rtsp/MyHandler.h b/media/libstagefright/rtsp/MyHandler.h
index 76e2e6e..5505aa4 100644
--- a/media/libstagefright/rtsp/MyHandler.h
+++ b/media/libstagefright/rtsp/MyHandler.h
@@ -25,6 +25,7 @@
 #endif
 
 #include <utils/Log.h>
+#include <cutils/properties.h> // for property_get
 
 #include "APacketSource.h"
 #include "ARTPConnection.h"
@@ -807,11 +808,7 @@
                         result = UNKNOWN_ERROR;
                     } else {
                         parsePlayResponse(response);
-
-                        sp<AMessage> timeout = new AMessage('tiou', this);
-                        mCheckTimeoutGeneration++;
-                        timeout->setInt32("tioucheck", mCheckTimeoutGeneration);
-                        timeout->post(kStartupTimeoutUs);
+                        postTimeout();
                     }
                 }
 
@@ -1153,10 +1150,7 @@
 
                         // Post new timeout in order to make sure to use
                         // fake timestamps if no new Sender Reports arrive
-                        sp<AMessage> timeout = new AMessage('tiou', this);
-                        mCheckTimeoutGeneration++;
-                        timeout->setInt32("tioucheck", mCheckTimeoutGeneration);
-                        timeout->post(kStartupTimeoutUs);
+                        postTimeout();
                     }
                 }
 
@@ -1248,10 +1242,7 @@
 
                 // Start new timeoutgeneration to avoid getting timeout
                 // before PLAY response arrive
-                sp<AMessage> timeout = new AMessage('tiou', this);
-                mCheckTimeoutGeneration++;
-                timeout->setInt32("tioucheck", mCheckTimeoutGeneration);
-                timeout->post(kStartupTimeoutUs);
+                postTimeout();
 
                 int64_t timeUs;
                 CHECK(msg->findInt64("time", &timeUs));
@@ -1305,10 +1296,7 @@
 
                         // Post new timeout in order to make sure to use
                         // fake timestamps if no new Sender Reports arrive
-                        sp<AMessage> timeout = new AMessage('tiou', this);
-                        mCheckTimeoutGeneration++;
-                        timeout->setInt32("tioucheck", mCheckTimeoutGeneration);
-                        timeout->post(kStartupTimeoutUs);
+                        postTimeout();
 
                         ssize_t i = response->mHeaders.indexOfKey("rtp-info");
                         CHECK_GE(i, 0);
@@ -1964,6 +1952,16 @@
         msg->post();
     }
 
+    void postTimeout() {
+        sp<AMessage> timeout = new AMessage('tiou', this);
+        mCheckTimeoutGeneration++;
+        timeout->setInt32("tioucheck", mCheckTimeoutGeneration);
+
+        int64_t startupTimeoutUs;
+        startupTimeoutUs = property_get_int64("media.rtsp.timeout-us", kStartupTimeoutUs);
+        timeout->post(startupTimeoutUs);
+    }
+
     DISALLOW_EVIL_CONSTRUCTORS(MyHandler);
 };
 
diff --git a/media/libstagefright/rtsp/rtp_test.cpp b/media/libstagefright/rtsp/rtp_test.cpp
index 24f529b..e612a8d 100644
--- a/media/libstagefright/rtsp/rtp_test.cpp
+++ b/media/libstagefright/rtsp/rtp_test.cpp
@@ -37,8 +37,6 @@
 int main(int argc, char **argv) {
     android::ProcessState::self()->startThreadPool();
 
-    DataSource::RegisterDefaultSniffers();
-
     const char *rtpFilename = NULL;
     const char *rtcpFilename = NULL;
 
diff --git a/media/libstagefright/tests/Android.mk b/media/libstagefright/tests/Android.mk
index d1c9d36..c6963b1 100644
--- a/media/libstagefright/tests/Android.mk
+++ b/media/libstagefright/tests/Android.mk
@@ -33,42 +33,11 @@
 	$(TOP)/frameworks/native/include/media/hardware \
 
 LOCAL_CFLAGS += -Werror -Wall
-LOCAL_CLANG := true
 
 LOCAL_32_BIT_ONLY := true
 
 include $(BUILD_NATIVE_TEST)
 
-
-include $(CLEAR_VARS)
-LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk
-
-LOCAL_MODULE := Utils_test
-
-LOCAL_MODULE_TAGS := tests
-
-LOCAL_SRC_FILES := \
-	Utils_test.cpp \
-
-LOCAL_SHARED_LIBRARIES := \
-	libcutils \
-	liblog \
-	libmedia \
-	libstagefright \
-	libstagefright_foundation \
-	libstagefright_omx \
-
-LOCAL_C_INCLUDES := \
-	frameworks/av/include \
-	frameworks/av/media/libstagefright \
-	frameworks/av/media/libstagefright/include \
-	$(TOP)/frameworks/native/include/media/openmax \
-
-LOCAL_CFLAGS += -Werror -Wall
-LOCAL_CLANG := true
-
-include $(BUILD_NATIVE_TEST)
-
 include $(CLEAR_VARS)
 LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk
 
@@ -95,7 +64,6 @@
 LOCAL_32_BIT_ONLY := true
 
 LOCAL_CFLAGS += -Werror -Wall
-LOCAL_CLANG := true
 
 include $(BUILD_NATIVE_TEST)
 
diff --git a/media/libstagefright/tests/SurfaceMediaSource_test.cpp b/media/libstagefright/tests/SurfaceMediaSource_test.cpp
index d419133..ea58343 100644
--- a/media/libstagefright/tests/SurfaceMediaSource_test.cpp
+++ b/media/libstagefright/tests/SurfaceMediaSource_test.cpp
@@ -466,7 +466,7 @@
     mr->setVideoSource(videoSource);
     mr->setOutputFormat(outputFormat);
     mr->setVideoEncoder(videoEncoder);
-    mr->setOutputFile(fd, 0, 0);
+    mr->setOutputFile(fd);
     mr->setVideoSize(width, height);
     mr->setVideoFrameRate(fps);
     mr->prepare();
diff --git a/media/libstagefright/tests/Utils_test.cpp b/media/libstagefright/tests/Utils_test.cpp
deleted file mode 100644
index d736501..0000000
--- a/media/libstagefright/tests/Utils_test.cpp
+++ /dev/null
@@ -1,284 +0,0 @@
-/*
- * Copyright 2014 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-//#define LOG_NDEBUG 0
-#define LOG_TAG "Utils_test"
-
-#include <gtest/gtest.h>
-#include <utils/String8.h>
-#include <utils/Errors.h>
-#include <fcntl.h>
-#include <unistd.h>
-
-#include <media/stagefright/foundation/ADebug.h>
-#include <media/stagefright/foundation/AStringUtils.h>
-#include <media/stagefright/foundation/AUtils.h>
-#include <media/stagefright/Utils.h>
-
-namespace android {
-
-class UtilsTest : public ::testing::Test {
-};
-
-TEST_F(UtilsTest, TestStringUtils) {
-    ASSERT_EQ(AStringUtils::Compare("Audio", "AudioExt", 5, false), 0);
-    ASSERT_EQ(AStringUtils::Compare("Audio", "audiOExt", 5, true), 0);
-    ASSERT_NE(AStringUtils::Compare("Audio", "audioExt", 5, false), 0);
-    ASSERT_NE(AStringUtils::Compare("Audio", "AudiOExt", 5, false), 0);
-
-    ASSERT_LT(AStringUtils::Compare("Audio", "AudioExt", 7, false), 0);
-    ASSERT_LT(AStringUtils::Compare("Audio", "audiOExt", 7, true), 0);
-
-    ASSERT_GT(AStringUtils::Compare("AudioExt", "Audio", 7, false), 0);
-    ASSERT_GT(AStringUtils::Compare("audiOext", "Audio", 7, true), 0);
-
-    ASSERT_LT(AStringUtils::Compare("Audio", "Video", 5, false), 0);
-    ASSERT_LT(AStringUtils::Compare("Audio1", "Audio2", 6, false), 0);
-    ASSERT_LT(AStringUtils::Compare("audio", "VIDEO", 5, true), 0);
-    ASSERT_LT(AStringUtils::Compare("audio1", "AUDIO2", 6, true), 0);
-
-    ASSERT_GT(AStringUtils::Compare("Video", "Audio", 5, false), 0);
-    ASSERT_GT(AStringUtils::Compare("Audio2", "Audio1", 6, false), 0);
-    ASSERT_GT(AStringUtils::Compare("VIDEO", "audio", 5, true), 0);
-    ASSERT_GT(AStringUtils::Compare("AUDIO2", "audio1", 6, true), 0);
-
-    ASSERT_TRUE(AStringUtils::MatchesGlob("AudioA", 5, "AudioB", 5, false));
-    ASSERT_FALSE(AStringUtils::MatchesGlob("AudioA", 6, "AudioA", 5, false));
-    ASSERT_FALSE(AStringUtils::MatchesGlob("AudioA", 5, "AudioA", 6, false));
-    ASSERT_FALSE(AStringUtils::MatchesGlob("AudioA", 5, "audiOB", 5, false));
-    ASSERT_TRUE(AStringUtils::MatchesGlob("AudioA", 5, "audiOB", 5, true));
-    ASSERT_FALSE(AStringUtils::MatchesGlob("AudioA", 6, "AudioA", 5, true));
-    ASSERT_FALSE(AStringUtils::MatchesGlob("AudioA", 5, "AudioA", 6, true));
-
-    ASSERT_TRUE(AStringUtils::MatchesGlob("*1", 1, "String8", 6, true));
-    ASSERT_TRUE(AStringUtils::MatchesGlob("*1", 1, "String8", 6, false));
-    ASSERT_TRUE(AStringUtils::MatchesGlob("*1", 1, "String8", 0, true));
-    ASSERT_TRUE(AStringUtils::MatchesGlob("*1", 1, "String8", 0, false));
-
-    ASSERT_TRUE(AStringUtils::MatchesGlob("*ring1", 5, "String8", 6, false));
-    ASSERT_TRUE(AStringUtils::MatchesGlob("*ring2", 5, "STRING8", 6, true));
-    ASSERT_FALSE(AStringUtils::MatchesGlob("*ring4", 5, "StRing8", 6, false));
-    ASSERT_FALSE(AStringUtils::MatchesGlob("*ring5", 5, "StrinG8", 6, false));
-    ASSERT_FALSE(AStringUtils::MatchesGlob("*ring8", 5, "String8", 7, false));
-    ASSERT_FALSE(AStringUtils::MatchesGlob("*ring8", 5, "String8", 7, true));
-
-    ASSERT_TRUE(AStringUtils::MatchesGlob("Str*1", 4, "String8", 6, false));
-    ASSERT_TRUE(AStringUtils::MatchesGlob("Str*2", 4, "STRING8", 6, true));
-    ASSERT_FALSE(AStringUtils::MatchesGlob("Str*3", 4, "string8", 6, false));
-    ASSERT_FALSE(AStringUtils::MatchesGlob("Str*4", 4, "StRing8", 6, false));
-    ASSERT_FALSE(AStringUtils::MatchesGlob("Str*5", 4, "AString8", 7, false));
-    ASSERT_FALSE(AStringUtils::MatchesGlob("Str*6", 4, "AString8", 7, true));
-
-    ASSERT_TRUE(AStringUtils::MatchesGlob("Str*ng1", 6, "String8", 6, false));
-    ASSERT_FALSE(AStringUtils::MatchesGlob("Str*ng2", 6, "string8", 6, false));
-    ASSERT_FALSE(AStringUtils::MatchesGlob("Str*ng3", 6, "StRing8", 6, false));
-    ASSERT_FALSE(AStringUtils::MatchesGlob("Str*ng4", 6, "StriNg8", 6, false));
-    ASSERT_FALSE(AStringUtils::MatchesGlob("Str*ng5", 6, "StrinG8", 6, false));
-    ASSERT_TRUE(AStringUtils::MatchesGlob("Str*ng6", 6, "STRING8", 6, true));
-    ASSERT_FALSE(AStringUtils::MatchesGlob("Str*ng8", 6, "AString8", 7, false));
-    ASSERT_FALSE(AStringUtils::MatchesGlob("Str*ng1", 6, "String16", 7, false));
-    ASSERT_TRUE(AStringUtils::MatchesGlob("Str*ing9", 7, "String8", 6, false));
-    ASSERT_FALSE(AStringUtils::MatchesGlob("Str*ringA", 8, "String8", 6, false));
-    ASSERT_FALSE(AStringUtils::MatchesGlob("Str*ng8", 6, "AString8", 7, true));
-    ASSERT_FALSE(AStringUtils::MatchesGlob("Str*ng1", 6, "String16", 7, true));
-    ASSERT_TRUE(AStringUtils::MatchesGlob("Str*ing9", 7, "STRING8", 6, true));
-    ASSERT_FALSE(AStringUtils::MatchesGlob("Str*ringA", 8, "String8", 6, true));
-
-    ASSERT_TRUE(AStringUtils::MatchesGlob("*str*str1", 8, "bestrestroom", 9, false));
-    ASSERT_TRUE(AStringUtils::MatchesGlob("*str*str1", 8, "bestrestrestroom", 13, false));
-    ASSERT_FALSE(AStringUtils::MatchesGlob("*str*stro", 8, "bestrestrestroom", 14, false));
-    ASSERT_TRUE(AStringUtils::MatchesGlob("*str*str*1", 9, "bestrestrestroom", 14, false));
-    ASSERT_TRUE(AStringUtils::MatchesGlob("*str*str1", 8, "beSTReSTRoom", 9, true));
-    ASSERT_TRUE(AStringUtils::MatchesGlob("*str*str1", 8, "beSTRestreSTRoom", 13, true));
-    ASSERT_FALSE(AStringUtils::MatchesGlob("*str*stro", 8, "bestreSTReSTRoom", 14, true));
-    ASSERT_TRUE(AStringUtils::MatchesGlob("*str*str*1", 9, "bestreSTReSTRoom", 14, true));
-}
-
-TEST_F(UtilsTest, TestDebug) {
-#define LVL(x) (ADebug::Level)(x)
-    ASSERT_EQ(ADebug::GetLevelFromSettingsString("video", "", LVL(5)), LVL(5));
-    ASSERT_EQ(ADebug::GetLevelFromSettingsString("video", "   \t  \n ", LVL(2)), LVL(2));
-    ASSERT_EQ(ADebug::GetLevelFromSettingsString("video", "3", LVL(5)), LVL(3));
-    ASSERT_EQ(ADebug::GetLevelFromSettingsString("video", "3:*deo", LVL(5)), LVL(3));
-    ASSERT_EQ(ADebug::GetLevelFromSettingsString(
-            "video", "\t\n 3 \t\n:\t\n video \t\n", LVL(5)), LVL(3));
-    ASSERT_EQ(ADebug::GetLevelFromSettingsString("video", "3:*deo,2:vid*", LVL(5)), LVL(2));
-    ASSERT_EQ(ADebug::GetLevelFromSettingsString(
-            "avideo", "\t\n 3 \t\n:\t\n avideo \t\n,\t\n 2 \t\n:\t\n video \t\n", LVL(5)), LVL(3));
-    ASSERT_EQ(ADebug::GetLevelFromSettingsString(
-            "audio.omx", "4:*omx,3:*d*o*,2:audio*", LVL(5)), LVL(2));
-    ASSERT_EQ(ADebug::GetLevelFromSettingsString(
-            "video.omx", "4:*omx,3:*d*o*,2:audio*", LVL(5)), LVL(3));
-    ASSERT_EQ(ADebug::GetLevelFromSettingsString("video", "4:*omx,3:*d*o*,2:audio*", LVL(5)), LVL(3));
-    ASSERT_EQ(ADebug::GetLevelFromSettingsString("omx", "4:*omx,3:*d*o*,2:audio*", LVL(5)), LVL(4));
-#undef LVL
-}
-
-TEST_F(UtilsTest, TestFourCC) {
-    ASSERT_EQ(FOURCC('s', 't', 'm' , 'u'), 'stmu');
-}
-
-TEST_F(UtilsTest, TestMathTemplates) {
-    ASSERT_EQ(divRound(-10, -4), 3);
-    ASSERT_EQ(divRound(-11, -4), 3);
-    ASSERT_EQ(divRound(-12, -4), 3);
-    ASSERT_EQ(divRound(-13, -4), 3);
-    ASSERT_EQ(divRound(-14, -4), 4);
-
-    ASSERT_EQ(divRound(10, -4), -3);
-    ASSERT_EQ(divRound(11, -4), -3);
-    ASSERT_EQ(divRound(12, -4), -3);
-    ASSERT_EQ(divRound(13, -4), -3);
-    ASSERT_EQ(divRound(14, -4), -4);
-
-    ASSERT_EQ(divRound(-10, 4), -3);
-    ASSERT_EQ(divRound(-11, 4), -3);
-    ASSERT_EQ(divRound(-12, 4), -3);
-    ASSERT_EQ(divRound(-13, 4), -3);
-    ASSERT_EQ(divRound(-14, 4), -4);
-
-    ASSERT_EQ(divRound(10, 4), 3);
-    ASSERT_EQ(divRound(11, 4), 3);
-    ASSERT_EQ(divRound(12, 4), 3);
-    ASSERT_EQ(divRound(13, 4), 3);
-    ASSERT_EQ(divRound(14, 4), 4);
-
-    ASSERT_EQ(divUp(-11, -4), 3);
-    ASSERT_EQ(divUp(-12, -4), 3);
-    ASSERT_EQ(divUp(-13, -4), 4);
-
-    ASSERT_EQ(divUp(11, -4), -2);
-    ASSERT_EQ(divUp(12, -4), -3);
-    ASSERT_EQ(divUp(13, -4), -3);
-
-    ASSERT_EQ(divUp(-11, 4), -2);
-    ASSERT_EQ(divUp(-12, 4), -3);
-    ASSERT_EQ(divUp(-13, 4), -3);
-
-    ASSERT_EQ(divUp(11, 4), 3);
-    ASSERT_EQ(divUp(12, 4), 3);
-    ASSERT_EQ(divUp(13, 4), 4);
-
-    ASSERT_EQ(align(11, 4), 12);
-    ASSERT_EQ(align(12, 4), 12);
-    ASSERT_EQ(align(13, 4), 16);
-    ASSERT_EQ(align(11, 8), 16);
-    ASSERT_EQ(align(11, 2), 12);
-    ASSERT_EQ(align(11, 1), 11);
-
-    ASSERT_EQ(abs(5L), 5L);
-    ASSERT_EQ(abs(-25), 25);
-
-    ASSERT_EQ(min(5.6f, 6.0f), 5.6f);
-    ASSERT_EQ(min(6.0f, 5.6f), 5.6f);
-    ASSERT_EQ(min(-4.3, 8.6), -4.3);
-    ASSERT_EQ(min(8.6, -4.3), -4.3);
-
-    ASSERT_EQ(max(5.6f, 6.0f), 6.0f);
-    ASSERT_EQ(max(6.0f, 5.6f), 6.0f);
-    ASSERT_EQ(max(-4.3, 8.6), 8.6);
-    ASSERT_EQ(max(8.6, -4.3), 8.6);
-
-    ASSERT_FALSE(isInRange(-43, 86u, -44));
-    ASSERT_TRUE(isInRange(-43, 87u, -43));
-    ASSERT_TRUE(isInRange(-43, 88u, -1));
-    ASSERT_TRUE(isInRange(-43, 89u, 0));
-    ASSERT_TRUE(isInRange(-43, 90u, 46));
-    ASSERT_FALSE(isInRange(-43, 91u, 48));
-    ASSERT_FALSE(isInRange(-43, 92u, 50));
-
-    ASSERT_FALSE(isInRange(43, 86u, 42));
-    ASSERT_TRUE(isInRange(43, 87u, 43));
-    ASSERT_TRUE(isInRange(43, 88u, 44));
-    ASSERT_TRUE(isInRange(43, 89u, 131));
-    ASSERT_FALSE(isInRange(43, 90u, 133));
-    ASSERT_FALSE(isInRange(43, 91u, 135));
-
-    ASSERT_FALSE(isInRange(43u, 86u, 42u));
-    ASSERT_TRUE(isInRange(43u, 85u, 43u));
-    ASSERT_TRUE(isInRange(43u, 84u, 44u));
-    ASSERT_TRUE(isInRange(43u, 83u, 125u));
-    ASSERT_FALSE(isInRange(43u, 82u, 125u));
-    ASSERT_FALSE(isInRange(43u, 81u, 125u));
-
-    ASSERT_FALSE(isInRange(-43, ~0u, 43));
-    ASSERT_FALSE(isInRange(-43, ~0u, 44));
-    ASSERT_FALSE(isInRange(-43, ~0u, ~0));
-    ASSERT_FALSE(isInRange(-43, ~0u, 41));
-    ASSERT_FALSE(isInRange(-43, ~0u, 40));
-
-    ASSERT_FALSE(isInRange(43u, ~0u, 43u));
-    ASSERT_FALSE(isInRange(43u, ~0u, 41u));
-    ASSERT_FALSE(isInRange(43u, ~0u, 40u));
-    ASSERT_FALSE(isInRange(43u, ~0u, ~0u));
-
-    ASSERT_FALSE(isInRange(-43, 86u, -44, 0u));
-    ASSERT_FALSE(isInRange(-43, 86u, -44, 1u));
-    ASSERT_FALSE(isInRange(-43, 86u, -44, 2u));
-    ASSERT_FALSE(isInRange(-43, 86u, -44, ~0u));
-    ASSERT_TRUE(isInRange(-43, 87u, -43, 0u));
-    ASSERT_TRUE(isInRange(-43, 87u, -43, 1u));
-    ASSERT_TRUE(isInRange(-43, 87u, -43, 86u));
-    ASSERT_TRUE(isInRange(-43, 87u, -43, 87u));
-    ASSERT_FALSE(isInRange(-43, 87u, -43, 88u));
-    ASSERT_FALSE(isInRange(-43, 87u, -43, ~0u));
-    ASSERT_TRUE(isInRange(-43, 88u, -1, 0u));
-    ASSERT_TRUE(isInRange(-43, 88u, -1, 45u));
-    ASSERT_TRUE(isInRange(-43, 88u, -1, 46u));
-    ASSERT_FALSE(isInRange(-43, 88u, -1, 47u));
-    ASSERT_FALSE(isInRange(-43, 88u, -1, ~3u));
-    ASSERT_TRUE(isInRange(-43, 90u, 46, 0u));
-    ASSERT_TRUE(isInRange(-43, 90u, 46, 1u));
-    ASSERT_FALSE(isInRange(-43, 90u, 46, 2u));
-    ASSERT_FALSE(isInRange(-43, 91u, 48, 0u));
-    ASSERT_FALSE(isInRange(-43, 91u, 48, 2u));
-    ASSERT_FALSE(isInRange(-43, 91u, 48, ~6u));
-    ASSERT_FALSE(isInRange(-43, 92u, 50, 0u));
-    ASSERT_FALSE(isInRange(-43, 92u, 50, 1u));
-
-    ASSERT_FALSE(isInRange(43u, 86u, 42u, 0u));
-    ASSERT_FALSE(isInRange(43u, 86u, 42u, 1u));
-    ASSERT_FALSE(isInRange(43u, 86u, 42u, 2u));
-    ASSERT_FALSE(isInRange(43u, 86u, 42u, ~0u));
-    ASSERT_TRUE(isInRange(43u, 87u, 43u, 0u));
-    ASSERT_TRUE(isInRange(43u, 87u, 43u, 1u));
-    ASSERT_TRUE(isInRange(43u, 87u, 43u, 86u));
-    ASSERT_TRUE(isInRange(43u, 87u, 43u, 87u));
-    ASSERT_FALSE(isInRange(43u, 87u, 43u, 88u));
-    ASSERT_FALSE(isInRange(43u, 87u, 43u, ~0u));
-    ASSERT_TRUE(isInRange(43u, 88u, 60u, 0u));
-    ASSERT_TRUE(isInRange(43u, 88u, 60u, 70u));
-    ASSERT_TRUE(isInRange(43u, 88u, 60u, 71u));
-    ASSERT_FALSE(isInRange(43u, 88u, 60u, 72u));
-    ASSERT_FALSE(isInRange(43u, 88u, 60u, ~3u));
-    ASSERT_TRUE(isInRange(43u, 90u, 132u, 0u));
-    ASSERT_TRUE(isInRange(43u, 90u, 132u, 1u));
-    ASSERT_FALSE(isInRange(43u, 90u, 132u, 2u));
-    ASSERT_FALSE(isInRange(43u, 91u, 134u, 0u));
-    ASSERT_FALSE(isInRange(43u, 91u, 134u, 2u));
-    ASSERT_FALSE(isInRange(43u, 91u, 134u, ~6u));
-    ASSERT_FALSE(isInRange(43u, 92u, 136u, 0u));
-    ASSERT_FALSE(isInRange(43u, 92u, 136u, 1u));
-
-    ASSERT_EQ(periodicError(124, 100), 24);
-    ASSERT_EQ(periodicError(288, 100), 12);
-    ASSERT_EQ(periodicError(-345, 100), 45);
-    ASSERT_EQ(periodicError(-493, 100), 7);
-    ASSERT_EQ(periodicError(-550, 100), 50);
-    ASSERT_EQ(periodicError(-600, 100), 0);
-}
-
-} // namespace android
diff --git a/media/libstagefright/timedtext/Android.mk b/media/libstagefright/timedtext/Android.mk
index 8d128b8..70ae46b 100644
--- a/media/libstagefright/timedtext/Android.mk
+++ b/media/libstagefright/timedtext/Android.mk
@@ -5,8 +5,8 @@
         TextDescriptions.cpp      \
 
 LOCAL_CFLAGS += -Wno-multichar -Werror -Wall
-LOCAL_CLANG := true
-LOCAL_SANITIZE := signed-integer-overflow
+LOCAL_SANITIZE := signed-integer-overflow cfi
+LOCAL_SANITIZE_DIAG := cfi
 
 LOCAL_C_INCLUDES:= \
         $(TOP)/frameworks/av/include/media/stagefright/timedtext \
diff --git a/media/libstagefright/webm/Android.mk b/media/libstagefright/webm/Android.mk
index ce580ae..0d55de9 100644
--- a/media/libstagefright/webm/Android.mk
+++ b/media/libstagefright/webm/Android.mk
@@ -4,8 +4,8 @@
 LOCAL_CPPFLAGS += -D__STDINT_LIMITS
 
 LOCAL_CFLAGS += -Werror -Wall
-LOCAL_CLANG := true
-LOCAL_SANITIZE := unsigned-integer-overflow signed-integer-overflow
+LOCAL_SANITIZE := unsigned-integer-overflow signed-integer-overflow cfi
+LOCAL_SANITIZE_DIAG := cfi
 
 LOCAL_SRC_FILES:= EbmlUtil.cpp        \
                   WebmElement.cpp     \
diff --git a/media/libstagefright/wifi-display/Android.mk b/media/libstagefright/wifi-display/Android.mk
index c87875d..a1b4aec 100644
--- a/media/libstagefright/wifi-display/Android.mk
+++ b/media/libstagefright/wifi-display/Android.mk
@@ -31,8 +31,8 @@
         libutils                        \
 
 LOCAL_CFLAGS += -Wno-multichar -Werror -Wall
-LOCAL_CLANG := true
-LOCAL_SANITIZE := signed-integer-overflow
+LOCAL_SANITIZE := signed-integer-overflow cfi
+LOCAL_SANITIZE_DIAG := cfi
 
 LOCAL_MODULE:= libstagefright_wfd
 
diff --git a/media/libstagefright/wifi-display/MediaSender.cpp b/media/libstagefright/wifi-display/MediaSender.cpp
index 6f0087f..ae507fc 100644
--- a/media/libstagefright/wifi-display/MediaSender.cpp
+++ b/media/libstagefright/wifi-display/MediaSender.cpp
@@ -423,9 +423,11 @@
             CHECK_GE(accessUnit->size(), rangeLength);
 
             sp<GraphicBuffer> grbuf(new GraphicBuffer(
-                    rangeOffset + rangeLength, 1, HAL_PIXEL_FORMAT_Y8,
-                    GRALLOC_USAGE_HW_VIDEO_ENCODER, rangeOffset + rangeLength,
-                    handle, false));
+                    rangeOffset + rangeLength /* width */, 1 /* height */,
+                    HAL_PIXEL_FORMAT_Y8, 1 /* layerCount */,
+                    GRALLOC_USAGE_HW_VIDEO_ENCODER,
+                    rangeOffset + rangeLength /* stride */, handle,
+                    false /* keepOwnership */));
 
             err = mHDCP->encryptNative(
                     grbuf, rangeOffset, rangeLength,
diff --git a/media/libstagefright/wifi-display/source/Converter.cpp b/media/libstagefright/wifi-display/source/Converter.cpp
index 471152e..273af18 100644
--- a/media/libstagefright/wifi-display/source/Converter.cpp
+++ b/media/libstagefright/wifi-display/source/Converter.cpp
@@ -26,6 +26,7 @@
 #include <cutils/properties.h>
 #include <gui/Surface.h>
 #include <media/ICrypto.h>
+#include <media/MediaCodecBuffer.h>
 #include <media/stagefright/foundation/ABuffer.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/AMessage.h>
@@ -720,7 +721,7 @@
 #endif
 
             sp<ABuffer> buffer;
-            sp<ABuffer> outbuf = mEncoderOutputBuffers.itemAt(bufferIndex);
+            sp<MediaCodecBuffer> outbuf = mEncoderOutputBuffers.itemAt(bufferIndex);
 
             if (outbuf->meta()->findPointer("handle", (void**)&handle) &&
                     handle != NULL) {
diff --git a/media/libstagefright/wifi-display/source/Converter.h b/media/libstagefright/wifi-display/source/Converter.h
index b182990..ad95ab5 100644
--- a/media/libstagefright/wifi-display/source/Converter.h
+++ b/media/libstagefright/wifi-display/source/Converter.h
@@ -25,6 +25,7 @@
 struct ABuffer;
 class IGraphicBufferProducer;
 struct MediaCodec;
+class MediaCodecBuffer;
 
 #define ENABLE_SILENCE_DETECTION        0
 
@@ -106,8 +107,8 @@
 
     sp<IGraphicBufferProducer> mGraphicBufferProducer;
 
-    Vector<sp<ABuffer> > mEncoderInputBuffers;
-    Vector<sp<ABuffer> > mEncoderOutputBuffers;
+    Vector<sp<MediaCodecBuffer> > mEncoderInputBuffers;
+    Vector<sp<MediaCodecBuffer> > mEncoderOutputBuffers;
 
     List<size_t> mAvailEncoderInputIndices;
 
diff --git a/media/libstagefright/wifi-display/source/PlaybackSession.cpp b/media/libstagefright/wifi-display/source/PlaybackSession.cpp
index 3587cb9..f1ecca0 100644
--- a/media/libstagefright/wifi-display/source/PlaybackSession.cpp
+++ b/media/libstagefright/wifi-display/source/PlaybackSession.cpp
@@ -36,7 +36,6 @@
 #include <media/stagefright/foundation/AMessage.h>
 #include <media/stagefright/foundation/hexdump.h>
 #include <media/stagefright/AudioSource.h>
-#include <media/stagefright/DataSource.h>
 #include <media/stagefright/MediaDefs.h>
 #include <media/stagefright/MediaErrors.h>
 #include <media/stagefright/MediaSource.h>
@@ -748,8 +747,6 @@
 
 status_t WifiDisplaySource::PlaybackSession::setupMediaPacketizer(
         bool enableAudio, bool enableVideo) {
-    DataSource::RegisterDefaultSniffers();
-
     mExtractor = new NuMediaExtractor;
 
     status_t err = mExtractor->setDataSource(
diff --git a/media/libstagefright/wifi-display/source/WifiDisplaySource.cpp b/media/libstagefright/wifi-display/source/WifiDisplaySource.cpp
index f0a4ded..9cda8dc 100644
--- a/media/libstagefright/wifi-display/source/WifiDisplaySource.cpp
+++ b/media/libstagefright/wifi-display/source/WifiDisplaySource.cpp
@@ -911,10 +911,8 @@
 
         bool supportsPCM = (modes & 2) != 0;  // LPCM 2ch 48kHz
 
-        char val[PROPERTY_VALUE_MAX];
         if (supportsPCM
-                && property_get("media.wfd.use-pcm-audio", val, NULL)
-                && (!strcasecmp("true", val) || !strcmp("1", val))) {
+                && property_get_bool("media.wfd.use-pcm-audio", false)) {
             ALOGI("Using PCM audio.");
             mUsingPCMAudio = true;
         } else if (supportsAAC) {
diff --git a/media/mediaserver/Android.mk b/media/mediaserver/Android.mk
index ffbfcbb..f7597db 100644
--- a/media/mediaserver/Android.mk
+++ b/media/mediaserver/Android.mk
@@ -12,24 +12,24 @@
 include $(CLEAR_VARS)
 
 LOCAL_SRC_FILES:= \
-	main_mediaserver.cpp
+        main_mediaserver.cpp
 
 LOCAL_SHARED_LIBRARIES := \
-	libresourcemanagerservice \
-	liblog \
-	libcutils \
-	libmediaplayerservice \
-	libutils \
-	libbinder \
-	libicuuc \
+        libresourcemanagerservice \
+        liblog \
+        libmediaplayerservice \
+        libutils \
+        libbinder \
+        libicuuc \
+        android.hardware.media.omx@1.0 \
 
 LOCAL_STATIC_LIBRARIES := \
         libicuandroid_utils \
         libregistermsext
 
 LOCAL_C_INCLUDES := \
-    frameworks/av/media/libmediaplayerservice \
-    frameworks/av/services/mediaresourcemanager \
+        frameworks/av/media/libmediaplayerservice \
+        frameworks/av/services/mediaresourcemanager \
 
 LOCAL_MODULE:= mediaserver
 LOCAL_32_BIT_ONLY := true
diff --git a/media/mtp/MtpDataPacket.cpp b/media/mtp/MtpDataPacket.cpp
index 40f4cea..d1c71d7 100644
--- a/media/mtp/MtpDataPacket.cpp
+++ b/media/mtp/MtpDataPacket.cpp
@@ -520,7 +520,7 @@
 
 // Wait for result of readDataAsync
 int MtpDataPacket::readDataWait(struct usb_device *device) {
-    struct usb_request *req = usb_request_wait(device);
+    struct usb_request *req = usb_request_wait(device, -1);
     return (req ? req->actual_length : -1);
 }
 
diff --git a/media/mtp/MtpDevice.cpp b/media/mtp/MtpDevice.cpp
index 52ea363..0bf7854 100644
--- a/media/mtp/MtpDevice.cpp
+++ b/media/mtp/MtpDevice.cpp
@@ -39,6 +39,12 @@
 
 namespace android {
 
+namespace {
+
+static constexpr int USB_CONTROL_TRANSFER_TIMEOUT_MS = 200;
+
+}  // namespace
+
 #if 0
 static bool isMtpDevice(uint16_t vendor, uint16_t product) {
     // Sandisk Sansa Fuze
@@ -84,15 +90,18 @@
                 interface->bInterfaceSubClass == 1 && // Still Image Capture
                 interface->bInterfaceProtocol == 1)     // Picture Transfer Protocol (PIMA 15470)
             {
-                char* manufacturerName = usb_device_get_manufacturer_name(device);
-                char* productName = usb_device_get_product_name(device);
+                char* manufacturerName = usb_device_get_manufacturer_name(device,
+                        USB_CONTROL_TRANSFER_TIMEOUT_MS);
+                char* productName = usb_device_get_product_name(device,
+                        USB_CONTROL_TRANSFER_TIMEOUT_MS);
                 ALOGD("Found camera: \"%s\" \"%s\"\n", manufacturerName, productName);
                 free(manufacturerName);
                 free(productName);
             } else if (interface->bInterfaceClass == 0xFF &&
                     interface->bInterfaceSubClass == 0xFF &&
                     interface->bInterfaceProtocol == 0) {
-                char* interfaceName = usb_device_get_string(device, interface->iInterface);
+                char* interfaceName = usb_device_get_string(device, interface->iInterface,
+                        USB_CONTROL_TRANSFER_TIMEOUT_MS);
                 if (!interfaceName) {
                     continue;
                 } else if (strcmp(interfaceName, "MTP")) {
@@ -102,8 +111,10 @@
                 free(interfaceName);
 
                 // Looks like an android style MTP device
-                char* manufacturerName = usb_device_get_manufacturer_name(device);
-                char* productName = usb_device_get_product_name(device);
+                char* manufacturerName = usb_device_get_manufacturer_name(device,
+                        USB_CONTROL_TRANSFER_TIMEOUT_MS);
+                char* productName = usb_device_get_product_name(device,
+                        USB_CONTROL_TRANSFER_TIMEOUT_MS);
                 ALOGD("Found MTP device: \"%s\" \"%s\"\n", manufacturerName, productName);
                 free(manufacturerName);
                 free(productName);
diff --git a/media/mtp/MtpDevice.h b/media/mtp/MtpDevice.h
index c84c842..a9a3e0e 100644
--- a/media/mtp/MtpDevice.h
+++ b/media/mtp/MtpDevice.h
@@ -107,7 +107,7 @@
     bool                    sendObject(MtpObjectHandle handle, int size, int srcFD);
     bool                    deleteObject(MtpObjectHandle handle);
     MtpObjectHandle         getParent(MtpObjectHandle handle);
-    MtpObjectHandle         getStorageID(MtpObjectHandle handle);
+    MtpStorageID            getStorageID(MtpObjectHandle handle);
 
     MtpObjectPropertyList*  getObjectPropsSupported(MtpObjectFormat format);
 
diff --git a/media/mtp/MtpDeviceInfo.cpp b/media/mtp/MtpDeviceInfo.cpp
index 3e1dff7..3d5cb06 100644
--- a/media/mtp/MtpDeviceInfo.cpp
+++ b/media/mtp/MtpDeviceInfo.cpp
@@ -69,6 +69,7 @@
 
     if (!packet.getString(string)) return false;
     mVendorExtensionDesc = strdup((const char *)string);
+    if (!mVendorExtensionDesc) return false;
 
     if (!packet.getUInt16(mFunctionalMode)) return false;
     mOperations = packet.getAUInt16();
@@ -84,12 +85,16 @@
 
     if (!packet.getString(string)) return false;
     mManufacturer = strdup((const char *)string);
+    if (!mManufacturer) return false;
     if (!packet.getString(string)) return false;
     mModel = strdup((const char *)string);
+    if (!mModel) return false;
     if (!packet.getString(string)) return false;
     mVersion = strdup((const char *)string);
+    if (!mVersion) return false;
     if (!packet.getString(string)) return false;
     mSerial = strdup((const char *)string);
+    if (!mSerial) return false;
 
     return true;
 }
diff --git a/media/mtp/MtpEventPacket.cpp b/media/mtp/MtpEventPacket.cpp
index fbee72f..921ecbd 100644
--- a/media/mtp/MtpEventPacket.cpp
+++ b/media/mtp/MtpEventPacket.cpp
@@ -62,7 +62,7 @@
 }
 
 int MtpEventPacket::readResponse(struct usb_device *device) {
-    struct usb_request* const req = usb_request_wait(device);
+    struct usb_request* const req = usb_request_wait(device, -1);
     if (req) {
         mPacketSize = req->actual_length;
         return req->actual_length;
diff --git a/media/mtp/MtpObjectInfo.cpp b/media/mtp/MtpObjectInfo.cpp
index 0573104..43b745f 100644
--- a/media/mtp/MtpObjectInfo.cpp
+++ b/media/mtp/MtpObjectInfo.cpp
@@ -77,6 +77,7 @@
 
     if (!packet.getString(string)) return false;
     mName = strdup((const char *)string);
+    if (!mName) return false;
 
     if (!packet.getString(string)) return false;
     if (parseDateTime((const char*)string, time))
@@ -88,6 +89,7 @@
 
     if (!packet.getString(string)) return false;
     mKeywords = strdup((const char *)string);
+    if (!mKeywords) return false;
 
     return true;
 }
diff --git a/media/mtp/MtpPacket.cpp b/media/mtp/MtpPacket.cpp
index 35ecb4f..3dd4248 100644
--- a/media/mtp/MtpPacket.cpp
+++ b/media/mtp/MtpPacket.cpp
@@ -70,8 +70,8 @@
     char* bufptr = buffer;
 
     for (size_t i = 0; i < mPacketSize; i++) {
-        sprintf(bufptr, "%02X ", mBuffer[i]);
-        bufptr += strlen(bufptr);
+        bufptr += snprintf(bufptr, sizeof(buffer) - (bufptr - buffer), "%02X ",
+                           mBuffer[i]);
         if (i % DUMP_BYTES_PER_ROW == (DUMP_BYTES_PER_ROW - 1)) {
             ALOGV("%s", buffer);
             bufptr = buffer;
diff --git a/media/mtp/MtpStorageInfo.cpp b/media/mtp/MtpStorageInfo.cpp
index 5d4ebbf..8801a38 100644
--- a/media/mtp/MtpStorageInfo.cpp
+++ b/media/mtp/MtpStorageInfo.cpp
@@ -58,8 +58,10 @@
 
     if (!packet.getString(string)) return false;
     mStorageDescription = strdup((const char *)string);
+    if (!mStorageDescription) return false;
     if (!packet.getString(string)) return false;
     mVolumeIdentifier = strdup((const char *)string);
+    if (!mVolumeIdentifier) return false;
 
     return true;
 }
diff --git a/media/ndk/Android.mk b/media/ndk/Android.mk
index a4f999f..67b0ab1 100644
--- a/media/ndk/Android.mk
+++ b/media/ndk/Android.mk
@@ -34,9 +34,12 @@
 
 LOCAL_C_INCLUDES := \
     bionic/libc/private \
+    external/piex \
     frameworks/base/core/jni \
+    frameworks/base/media/jni \
     frameworks/av/include/ndk \
-    system/media/camera/include
+    system/media/camera/include \
+    $(call include-path-for, libhardware)/hardware \
 
 LOCAL_CFLAGS += -fvisibility=hidden -D EXPORT='__attribute__ ((visibility ("default")))'
 
@@ -45,6 +48,9 @@
 LOCAL_SHARED_LIBRARIES := \
     libbinder \
     libmedia \
+    libmedia_jni \
+    libmediadrm \
+    libskia \
     libstagefright \
     libstagefright_foundation \
     liblog \
diff --git a/media/ndk/NdkImage.cpp b/media/ndk/NdkImage.cpp
index 40900ad..6c9a644 100644
--- a/media/ndk/NdkImage.cpp
+++ b/media/ndk/NdkImage.cpp
@@ -22,6 +22,8 @@
 #include "NdkImagePriv.h"
 #include "NdkImageReaderPriv.h"
 
+#include <android_media_Utils.h>
+#include <android_runtime/android_hardware_HardwareBuffer.h>
 #include <utils/Log.h>
 #include "hardware/camera3.h"
 
@@ -29,11 +31,11 @@
 
 #define ALIGN(x, mask) ( ((x) + (mask) - 1) & ~((mask) - 1) )
 
-AImage::AImage(AImageReader* reader, int32_t format,
-        CpuConsumer::LockedBuffer* buffer, int64_t timestamp,
+AImage::AImage(AImageReader* reader, int32_t format, uint64_t usage,
+        BufferItem* buffer, int64_t timestamp,
         int32_t width, int32_t height, int32_t numPlanes) :
-        mReader(reader), mFormat(format),
-        mBuffer(buffer), mTimestamp(timestamp),
+        mReader(reader), mFormat(format), mUsage(usage),
+        mBuffer(buffer), mLockedBuffer(nullptr), mTimestamp(timestamp),
         mWidth(width), mHeight(height), mNumPlanes(numPlanes) {
 }
 
@@ -66,6 +68,7 @@
     // Should have been set to nullptr in releaseImageLocked
     // Set to nullptr here for extra safety only
     mBuffer = nullptr;
+    mLockedBuffer = nullptr;
     mIsClosed = true;
 }
 
@@ -169,8 +172,80 @@
     return AMEDIA_OK;
 }
 
+media_status_t AImage::lockImage() {
+    if (mBuffer == nullptr || mBuffer->mGraphicBuffer == nullptr) {
+        LOG_ALWAYS_FATAL("%s: AImage %p has no buffer.", __FUNCTION__, this);
+        return AMEDIA_ERROR_INVALID_OBJECT;
+    }
+
+    if ((mUsage & AHARDWAREBUFFER_USAGE0_CPU_READ_OFTEN) == 0) {
+        ALOGE("%s: AImage %p does not have any software read usage bits set, usage=%" PRIu64 "",
+              __FUNCTION__, this, mUsage);
+        return AMEDIA_IMGREADER_CANNOT_LOCK_IMAGE;
+    }
+
+    if (mLockedBuffer != nullptr) {
+        // Return immediately if the image has already been locked.
+        return AMEDIA_OK;
+    }
+
+    auto lockedBuffer = std::make_unique<CpuConsumer::LockedBuffer>();
+
+    uint64_t producerUsage;
+    uint64_t consumerUsage;
+    android_hardware_HardwareBuffer_convertToGrallocUsageBits(
+            &producerUsage, &consumerUsage, mUsage, 0);
+
+    status_t ret =
+            lockImageFromBuffer(mBuffer, consumerUsage, mBuffer->mFence->dup(), lockedBuffer.get());
+    if (ret != OK) {
+        ALOGE("%s: AImage %p failed to lock, error=%d", __FUNCTION__, this, ret);
+        return AMEDIA_IMGREADER_CANNOT_LOCK_IMAGE;
+    }
+
+    ALOGV("%s: Successfully locked the image %p.", __FUNCTION__, this);
+    mLockedBuffer = std::move(lockedBuffer);
+
+    return AMEDIA_OK;
+}
+
+media_status_t AImage::unlockImageIfLocked(int* fenceFd) {
+    if (fenceFd == nullptr) {
+        LOG_ALWAYS_FATAL("%s: fenceFd cannot be null.", __FUNCTION__);
+        return AMEDIA_ERROR_INVALID_PARAMETER;
+    }
+
+    if (mBuffer == nullptr || mBuffer->mGraphicBuffer == nullptr) {
+        LOG_ALWAYS_FATAL("%s: AImage %p has no buffer.", __FUNCTION__, this);
+        return AMEDIA_ERROR_INVALID_OBJECT;
+    }
+
+    if (mLockedBuffer == nullptr) {
+        // This image hasn't been locked yet, no need to unlock.
+        *fenceFd = -1;
+        return AMEDIA_OK;
+    }
+
+    // No fence by default.
+    int releaseFenceFd = -1;
+    status_t res = mBuffer->mGraphicBuffer->unlockAsync(&releaseFenceFd);
+    if (res != OK) {
+        ALOGE("%s unlock buffer failed on iamge %p.", __FUNCTION__, this);
+        *fenceFd = -1;
+        return AMEDIA_IMGREADER_CANNOT_UNLOCK_IMAGE;
+    }
+
+    *fenceFd = releaseFenceFd;
+    return AMEDIA_OK;
+}
+
 media_status_t
 AImage::getPlanePixelStride(int planeIdx, /*out*/int32_t* pixelStride) const {
+    if (mLockedBuffer == nullptr) {
+        ALOGE("%s: buffer not locked.", __FUNCTION__);
+        return AMEDIA_IMGREADER_IMAGE_NOT_LOCKED;
+    }
+
     if (planeIdx < 0 || planeIdx >= mNumPlanes) {
         ALOGE("Error: planeIdx %d out of bound [0,%d]",
                 planeIdx, mNumPlanes - 1);
@@ -183,10 +258,10 @@
         ALOGE("%s: image %p has been closed!", __FUNCTION__, this);
         return AMEDIA_ERROR_INVALID_OBJECT;
     }
-    int32_t fmt = mBuffer->flexFormat;
+    int32_t fmt = mLockedBuffer->flexFormat;
     switch (fmt) {
         case HAL_PIXEL_FORMAT_YCbCr_420_888:
-            *pixelStride = (planeIdx == 0) ? 1 : mBuffer->chromaStep;
+            *pixelStride = (planeIdx == 0) ? 1 : mLockedBuffer->chromaStep;
             return AMEDIA_OK;
         case HAL_PIXEL_FORMAT_YCrCb_420_SP:
             *pixelStride = (planeIdx == 0) ? 1 : 2;
@@ -226,6 +301,11 @@
 
 media_status_t
 AImage::getPlaneRowStride(int planeIdx, /*out*/int32_t* rowStride) const {
+    if (mLockedBuffer == nullptr) {
+        ALOGE("%s: buffer not locked.", __FUNCTION__);
+        return AMEDIA_IMGREADER_IMAGE_NOT_LOCKED;
+    }
+
     if (planeIdx < 0 || planeIdx >= mNumPlanes) {
         ALOGE("Error: planeIdx %d out of bound [0,%d]",
                 planeIdx, mNumPlanes - 1);
@@ -238,54 +318,58 @@
         ALOGE("%s: image %p has been closed!", __FUNCTION__, this);
         return AMEDIA_ERROR_INVALID_OBJECT;
     }
-    int32_t fmt = mBuffer->flexFormat;
+    int32_t fmt = mLockedBuffer->flexFormat;
     switch (fmt) {
         case HAL_PIXEL_FORMAT_YCbCr_420_888:
-            *rowStride = (planeIdx == 0) ? mBuffer->stride : mBuffer->chromaStride;
+            *rowStride = (planeIdx == 0) ? mLockedBuffer->stride
+                                         : mLockedBuffer->chromaStride;
             return AMEDIA_OK;
         case HAL_PIXEL_FORMAT_YCrCb_420_SP:
-            *rowStride = mBuffer->width;
+            *rowStride = mLockedBuffer->width;
             return AMEDIA_OK;
         case HAL_PIXEL_FORMAT_YV12:
-            if (mBuffer->stride % 16) {
-                ALOGE("Stride %d is not 16 pixel aligned!", mBuffer->stride);
+            if (mLockedBuffer->stride % 16) {
+                ALOGE("Stride %d is not 16 pixel aligned!", mLockedBuffer->stride);
                 return AMEDIA_ERROR_UNKNOWN;
             }
-            *rowStride = (planeIdx == 0) ? mBuffer->stride : ALIGN(mBuffer->stride / 2, 16);
+            *rowStride = (planeIdx == 0) ? mLockedBuffer->stride
+                                         : ALIGN(mLockedBuffer->stride / 2, 16);
             return AMEDIA_OK;
         case HAL_PIXEL_FORMAT_RAW10:
         case HAL_PIXEL_FORMAT_RAW12:
             // RAW10 and RAW12 are used for 10-bit and 12-bit raw data, they are single plane
-            *rowStride = mBuffer->stride;
+            *rowStride = mLockedBuffer->stride;
             return AMEDIA_OK;
         case HAL_PIXEL_FORMAT_Y8:
-            if (mBuffer->stride % 16) {
-                ALOGE("Stride %d is not 16 pixel aligned!", mBuffer->stride);
+            if (mLockedBuffer->stride % 16) {
+                ALOGE("Stride %d is not 16 pixel aligned!",
+                      mLockedBuffer->stride);
                 return AMEDIA_ERROR_UNKNOWN;
             }
-            *rowStride = mBuffer->stride;
+            *rowStride = mLockedBuffer->stride;
             return AMEDIA_OK;
         case HAL_PIXEL_FORMAT_Y16:
         case HAL_PIXEL_FORMAT_RAW16:
             // In native side, strides are specified in pixels, not in bytes.
             // Single plane 16bpp bayer data. even width/height,
             // row stride multiple of 16 pixels (32 bytes)
-            if (mBuffer->stride % 16) {
-                ALOGE("Stride %d is not 16 pixel aligned!", mBuffer->stride);
+            if (mLockedBuffer->stride % 16) {
+                ALOGE("Stride %d is not 16 pixel aligned!",
+                      mLockedBuffer->stride);
                 return AMEDIA_ERROR_UNKNOWN;
             }
-            *rowStride = mBuffer->stride * 2;
+            *rowStride = mLockedBuffer->stride * 2;
             return AMEDIA_OK;
         case HAL_PIXEL_FORMAT_RGB_565:
-            *rowStride = mBuffer->stride * 2;
+            *rowStride = mLockedBuffer->stride * 2;
             return AMEDIA_OK;
         case HAL_PIXEL_FORMAT_RGBA_8888:
         case HAL_PIXEL_FORMAT_RGBX_8888:
-            *rowStride = mBuffer->stride * 4;
+            *rowStride = mLockedBuffer->stride * 4;
             return AMEDIA_OK;
         case HAL_PIXEL_FORMAT_RGB_888:
             // Single plane, 24bpp.
-            *rowStride = mBuffer->stride * 3;
+            *rowStride = mLockedBuffer->stride * 3;
             return AMEDIA_OK;
         case HAL_PIXEL_FORMAT_BLOB:
         case HAL_PIXEL_FORMAT_RAW_OPAQUE:
@@ -300,13 +384,13 @@
 
 uint32_t
 AImage::getJpegSize() const {
-    if (mBuffer == nullptr) {
+    if (mLockedBuffer == nullptr) {
         LOG_ALWAYS_FATAL("Error: buffer is null");
     }
 
     uint32_t size = 0;
-    uint32_t width = mBuffer->width;
-    uint8_t* jpegBuffer = mBuffer->data;
+    uint32_t width = mLockedBuffer->width;
+    uint8_t* jpegBuffer = mLockedBuffer->data;
 
     // First check for JPEG transport header at the end of the buffer
     uint8_t* header = jpegBuffer + (width - sizeof(struct camera3_jpeg_blob));
@@ -334,6 +418,11 @@
 
 media_status_t
 AImage::getPlaneData(int planeIdx,/*out*/uint8_t** data, /*out*/int* dataLength) const {
+    if (mLockedBuffer == nullptr) {
+        ALOGE("%s: buffer not locked.", __FUNCTION__);
+        return AMEDIA_IMGREADER_IMAGE_NOT_LOCKED;
+    }
+
     if (planeIdx < 0 || planeIdx >= mNumPlanes) {
         ALOGE("Error: planeIdx %d out of bound [0,%d]",
                 planeIdx, mNumPlanes - 1);
@@ -352,140 +441,154 @@
     uint8_t* cr = nullptr;
     uint8_t* pData = nullptr;
     int bytesPerPixel = 0;
-    int32_t fmt = mBuffer->flexFormat;
+    int32_t fmt = mLockedBuffer->flexFormat;
 
     switch (fmt) {
         case HAL_PIXEL_FORMAT_YCbCr_420_888:
-            pData = (planeIdx == 0) ? mBuffer->data :
-                    (planeIdx == 1) ? mBuffer->dataCb : mBuffer->dataCr;
+            pData = (planeIdx == 0) ? mLockedBuffer->data
+                                    : (planeIdx == 1) ? mLockedBuffer->dataCb
+                                                      : mLockedBuffer->dataCr;
             // only map until last pixel
             if (planeIdx == 0) {
-                dataSize = mBuffer->stride * (mBuffer->height - 1) + mBuffer->width;
+                dataSize = mLockedBuffer->stride * (mLockedBuffer->height - 1) +
+                           mLockedBuffer->width;
             } else {
-                dataSize = mBuffer->chromaStride * (mBuffer->height / 2 - 1) +
-                        mBuffer->chromaStep * (mBuffer->width / 2 - 1) + 1;
+                dataSize =
+                    mLockedBuffer->chromaStride *
+                        (mLockedBuffer->height / 2 - 1) +
+                    mLockedBuffer->chromaStep * (mLockedBuffer->width / 2 - 1) +
+                    1;
             }
             break;
         // NV21
         case HAL_PIXEL_FORMAT_YCrCb_420_SP:
-            cr = mBuffer->data + (mBuffer->stride * mBuffer->height);
+            cr = mLockedBuffer->data +
+                 (mLockedBuffer->stride * mLockedBuffer->height);
             cb = cr + 1;
             // only map until last pixel
-            ySize = mBuffer->width * (mBuffer->height - 1) + mBuffer->width;
-            cSize = mBuffer->width * (mBuffer->height / 2 - 1) + mBuffer->width - 1;
-
-            pData = (planeIdx == 0) ? mBuffer->data :
-                    (planeIdx == 1) ? cb : cr;
+            ySize = mLockedBuffer->width * (mLockedBuffer->height - 1) +
+                    mLockedBuffer->width;
+            cSize = mLockedBuffer->width * (mLockedBuffer->height / 2 - 1) +
+                    mLockedBuffer->width - 1;
+            pData = (planeIdx == 0) ? mLockedBuffer->data
+                                    : (planeIdx == 1) ? cb : cr;
             dataSize = (planeIdx == 0) ? ySize : cSize;
             break;
         case HAL_PIXEL_FORMAT_YV12:
             // Y and C stride need to be 16 pixel aligned.
-            if (mBuffer->stride % 16) {
-                ALOGE("Stride %d is not 16 pixel aligned!", mBuffer->stride);
+            if (mLockedBuffer->stride % 16) {
+                ALOGE("Stride %d is not 16 pixel aligned!",
+                      mLockedBuffer->stride);
                 return AMEDIA_ERROR_UNKNOWN;
             }
 
-            ySize = mBuffer->stride * mBuffer->height;
-            cStride = ALIGN(mBuffer->stride / 2, 16);
-            cr = mBuffer->data + ySize;
-            cSize = cStride * mBuffer->height / 2;
+            ySize = mLockedBuffer->stride * mLockedBuffer->height;
+            cStride = ALIGN(mLockedBuffer->stride / 2, 16);
+            cr = mLockedBuffer->data + ySize;
+            cSize = cStride * mLockedBuffer->height / 2;
             cb = cr + cSize;
 
-            pData = (planeIdx == 0) ? mBuffer->data :
-                    (planeIdx == 1) ? cb : cr;
+            pData = (planeIdx == 0) ? mLockedBuffer->data
+                                    : (planeIdx == 1) ? cb : cr;
             dataSize = (planeIdx == 0) ? ySize : cSize;
             break;
         case HAL_PIXEL_FORMAT_Y8:
             // Single plane, 8bpp.
 
-            pData = mBuffer->data;
-            dataSize = mBuffer->stride * mBuffer->height;
+            pData = mLockedBuffer->data;
+            dataSize = mLockedBuffer->stride * mLockedBuffer->height;
             break;
         case HAL_PIXEL_FORMAT_Y16:
             bytesPerPixel = 2;
 
-            pData = mBuffer->data;
-            dataSize = mBuffer->stride * mBuffer->height * bytesPerPixel;
+            pData = mLockedBuffer->data;
+            dataSize =
+                mLockedBuffer->stride * mLockedBuffer->height * bytesPerPixel;
             break;
         case HAL_PIXEL_FORMAT_BLOB:
             // Used for JPEG data, height must be 1, width == size, single plane.
-            if (mBuffer->height != 1) {
-                ALOGE("Jpeg should have height value one but got %d", mBuffer->height);
+            if (mLockedBuffer->height != 1) {
+                ALOGE("Jpeg should have height value one but got %d",
+                      mLockedBuffer->height);
                 return AMEDIA_ERROR_UNKNOWN;
             }
 
-            pData = mBuffer->data;
+            pData = mLockedBuffer->data;
             dataSize = getJpegSize();
             break;
         case HAL_PIXEL_FORMAT_RAW16:
             // Single plane 16bpp bayer data.
             bytesPerPixel = 2;
-            pData = mBuffer->data;
-            dataSize = mBuffer->stride * mBuffer->height * bytesPerPixel;
+            pData = mLockedBuffer->data;
+            dataSize =
+                mLockedBuffer->stride * mLockedBuffer->height * bytesPerPixel;
             break;
         case HAL_PIXEL_FORMAT_RAW_OPAQUE:
             // Used for RAW_OPAQUE data, height must be 1, width == size, single plane.
-            if (mBuffer->height != 1) {
-                ALOGE("RAW_OPAQUE should have height value one but got %d", mBuffer->height);
+            if (mLockedBuffer->height != 1) {
+                ALOGE("RAW_OPAQUE should have height value one but got %d",
+                      mLockedBuffer->height);
                 return AMEDIA_ERROR_UNKNOWN;
             }
-            pData = mBuffer->data;
-            dataSize = mBuffer->width;
+            pData = mLockedBuffer->data;
+            dataSize = mLockedBuffer->width;
             break;
         case HAL_PIXEL_FORMAT_RAW10:
             // Single plane 10bpp bayer data.
-            if (mBuffer->width % 4) {
-                ALOGE("Width is not multiple of 4 %d", mBuffer->width);
+            if (mLockedBuffer->width % 4) {
+                ALOGE("Width is not multiple of 4 %d", mLockedBuffer->width);
                 return AMEDIA_ERROR_UNKNOWN;
             }
-            if (mBuffer->height % 2) {
-                ALOGE("Height is not multiple of 2 %d", mBuffer->height);
+            if (mLockedBuffer->height % 2) {
+                ALOGE("Height is not multiple of 2 %d", mLockedBuffer->height);
                 return AMEDIA_ERROR_UNKNOWN;
             }
-            if (mBuffer->stride < (mBuffer->width * 10 / 8)) {
+            if (mLockedBuffer->stride < (mLockedBuffer->width * 10 / 8)) {
                 ALOGE("stride (%d) should be at least %d",
-                        mBuffer->stride, mBuffer->width * 10 / 8);
+                        mLockedBuffer->stride, mLockedBuffer->width * 10 / 8);
                 return AMEDIA_ERROR_UNKNOWN;
             }
-            pData = mBuffer->data;
-            dataSize = mBuffer->stride * mBuffer->height;
+            pData = mLockedBuffer->data;
+            dataSize = mLockedBuffer->stride * mLockedBuffer->height;
             break;
         case HAL_PIXEL_FORMAT_RAW12:
             // Single plane 10bpp bayer data.
-            if (mBuffer->width % 4) {
-                ALOGE("Width is not multiple of 4 %d", mBuffer->width);
+            if (mLockedBuffer->width % 4) {
+                ALOGE("Width is not multiple of 4 %d", mLockedBuffer->width);
                 return AMEDIA_ERROR_UNKNOWN;
             }
-            if (mBuffer->height % 2) {
-                ALOGE("Height is not multiple of 2 %d", mBuffer->height);
+            if (mLockedBuffer->height % 2) {
+                ALOGE("Height is not multiple of 2 %d", mLockedBuffer->height);
                 return AMEDIA_ERROR_UNKNOWN;
             }
-            if (mBuffer->stride < (mBuffer->width * 12 / 8)) {
+            if (mLockedBuffer->stride < (mLockedBuffer->width * 12 / 8)) {
                 ALOGE("stride (%d) should be at least %d",
-                        mBuffer->stride, mBuffer->width * 12 / 8);
+                        mLockedBuffer->stride, mLockedBuffer->width * 12 / 8);
                 return AMEDIA_ERROR_UNKNOWN;
             }
-            pData = mBuffer->data;
-            dataSize = mBuffer->stride * mBuffer->height;
+            pData = mLockedBuffer->data;
+            dataSize = mLockedBuffer->stride * mLockedBuffer->height;
             break;
         case HAL_PIXEL_FORMAT_RGBA_8888:
         case HAL_PIXEL_FORMAT_RGBX_8888:
             // Single plane, 32bpp.
             bytesPerPixel = 4;
-            pData = mBuffer->data;
-            dataSize = mBuffer->stride * mBuffer->height * bytesPerPixel;
+            pData = mLockedBuffer->data;
+            dataSize =
+                mLockedBuffer->stride * mLockedBuffer->height * bytesPerPixel;
             break;
         case HAL_PIXEL_FORMAT_RGB_565:
             // Single plane, 16bpp.
             bytesPerPixel = 2;
-            pData = mBuffer->data;
-            dataSize = mBuffer->stride * mBuffer->height * bytesPerPixel;
+            pData = mLockedBuffer->data;
+            dataSize =
+                mLockedBuffer->stride * mLockedBuffer->height * bytesPerPixel;
             break;
         case HAL_PIXEL_FORMAT_RGB_888:
             // Single plane, 24bpp.
             bytesPerPixel = 3;
-            pData = mBuffer->data;
-            dataSize = mBuffer->stride * mBuffer->height * bytesPerPixel;
+            pData = mLockedBuffer->data;
+            dataSize = mLockedBuffer->stride * mLockedBuffer->height * bytesPerPixel;
             break;
         default:
             ALOGE("Pixel format: 0x%x is unsupported", fmt);
@@ -602,6 +705,12 @@
                 __FUNCTION__, image, pixelStride);
         return AMEDIA_ERROR_INVALID_PARAMETER;
     }
+    media_status_t ret = const_cast<AImage*>(image)->lockImage();
+    if (ret != AMEDIA_OK) {
+        ALOGE("%s: failed to lock buffer for CPU access. image %p, error=%d.",
+              __FUNCTION__, image, ret);
+        return ret;
+    }
     return image->getPlanePixelStride(planeIdx, pixelStride);
 }
 
@@ -614,6 +723,12 @@
                 __FUNCTION__, image, rowStride);
         return AMEDIA_ERROR_INVALID_PARAMETER;
     }
+    media_status_t ret = const_cast<AImage*>(image)->lockImage();
+    if (ret != AMEDIA_OK) {
+        ALOGE("%s: failed to lock buffer for CPU access. image %p, error=%d.",
+              __FUNCTION__, image, ret);
+        return ret;
+    }
     return image->getPlaneRowStride(planeIdx, rowStride);
 }
 
@@ -627,5 +742,11 @@
                 __FUNCTION__, image, data, dataLength);
         return AMEDIA_ERROR_INVALID_PARAMETER;
     }
+    media_status_t ret = const_cast<AImage*>(image)->lockImage();
+    if (ret != AMEDIA_OK) {
+        ALOGE("%s: failed to lock buffer for CPU access. image %p, error=%d.",
+              __FUNCTION__, image, ret);
+        return ret;
+    }
     return image->getPlaneData(planeIdx, data, dataLength);
 }
diff --git a/media/ndk/NdkImagePriv.h b/media/ndk/NdkImagePriv.h
index 89d2b7c..e01dcc7 100644
--- a/media/ndk/NdkImagePriv.h
+++ b/media/ndk/NdkImagePriv.h
@@ -21,6 +21,7 @@
 #include <utils/Log.h>
 #include <utils/StrongPointer.h>
 
+#include <gui/BufferItem.h>
 #include <gui/CpuConsumer.h>
 
 #include "NdkImageReaderPriv.h"
@@ -31,9 +32,9 @@
 
 // TODO: this only supports ImageReader
 struct AImage {
-    AImage(AImageReader* reader, int32_t format,
-            CpuConsumer::LockedBuffer* buffer, int64_t timestamp,
-            int32_t width, int32_t height, int32_t numPlanes);
+    AImage(AImageReader* reader, int32_t format, uint64_t usage,
+           BufferItem* buffer, int64_t timestamp,
+           int32_t width, int32_t height, int32_t numPlanes);
 
     // free all resources while keeping object alive. Caller must obtain reader lock
     void close();
@@ -54,6 +55,9 @@
     media_status_t getNumPlanes(/*out*/int32_t* numPlanes) const;
     media_status_t getTimestamp(/*out*/int64_t* timestamp) const;
 
+    media_status_t lockImage();
+    media_status_t unlockImageIfLocked(/*out*/int* fenceFd);
+
     media_status_t getPlanePixelStride(int planeIdx, /*out*/int32_t* pixelStride) const;
     media_status_t getPlaneRowStride(int planeIdx, /*out*/int32_t* rowStride) const;
     media_status_t getPlaneData(int planeIdx,/*out*/uint8_t** data, /*out*/int* dataLength) const;
@@ -69,7 +73,9 @@
     // When reader is close, AImage will only accept close API call
     wp<AImageReader>           mReader;
     const int32_t              mFormat;
-    CpuConsumer::LockedBuffer* mBuffer;
+    const uint64_t             mUsage;  // AHARDWAREBUFFER_USAGE0* flags.
+    BufferItem*                mBuffer;
+    std::unique_ptr<CpuConsumer::LockedBuffer> mLockedBuffer;
     const int64_t              mTimestamp;
     const int32_t              mWidth;
     const int32_t              mHeight;
diff --git a/media/ndk/NdkImageReader.cpp b/media/ndk/NdkImageReader.cpp
index d470cb0..e580dae 100644
--- a/media/ndk/NdkImageReader.cpp
+++ b/media/ndk/NdkImageReader.cpp
@@ -22,8 +22,11 @@
 #include "NdkImagePriv.h"
 #include "NdkImageReaderPriv.h"
 
+#include <cutils/atomic.h>
 #include <utils/Log.h>
+#include <android_media_Utils.h>
 #include <android_runtime/android_view_Surface.h>
+#include <android_runtime/android_hardware_HardwareBuffer.h>
 
 using namespace android;
 
@@ -35,6 +38,7 @@
     }
 }
 
+const int32_t AImageReader::kDefaultUsage = AHARDWAREBUFFER_USAGE0_CPU_READ_OFTEN;
 const char* AImageReader::kCallbackFpKey = "Callback";
 const char* AImageReader::kContextKey    = "Context";
 
@@ -150,10 +154,18 @@
     }
 }
 
-AImageReader::AImageReader(int32_t width, int32_t height, int32_t format, int32_t maxImages) :
-        mWidth(width), mHeight(height), mFormat(format), mMaxImages(maxImages),
-        mNumPlanes(getNumPlanesForFormat(format)),
-        mFrameListener(new FrameListener(this)) {}
+AImageReader::AImageReader(int32_t width,
+                           int32_t height,
+                           int32_t format,
+                           uint64_t usage,
+                           int32_t maxImages)
+    : mWidth(width),
+      mHeight(height),
+      mFormat(format),
+      mUsage(usage),
+      mMaxImages(maxImages),
+      mNumPlanes(getNumPlanesForFormat(format)),
+      mFrameListener(new FrameListener(this)) {}
 
 media_status_t
 AImageReader::init() {
@@ -161,42 +173,44 @@
     mHalFormat = android_view_Surface_mapPublicFormatToHalFormat(publicFormat);
     mHalDataSpace = android_view_Surface_mapPublicFormatToHalDataspace(publicFormat);
 
+    uint64_t producerUsage;
+    uint64_t consumerUsage;
+    android_hardware_HardwareBuffer_convertToGrallocUsageBits(
+            &producerUsage, &consumerUsage, mUsage, 0);
+
     sp<IGraphicBufferProducer> gbProducer;
     sp<IGraphicBufferConsumer> gbConsumer;
     BufferQueue::createBufferQueue(&gbProducer, &gbConsumer);
 
-    sp<CpuConsumer> cpuConsumer;
-    String8 consumerName = String8::format("ImageReader-%dx%df%xm%d-%d-%d",
-            mWidth, mHeight, mFormat, mMaxImages, getpid(),
-            createProcessUniqueId());
+    String8 consumerName = String8::format(
+            "ImageReader-%dx%df%xu%" PRIu64 "m%d-%d-%d", mWidth, mHeight, mFormat, mUsage,
+            mMaxImages, getpid(), createProcessUniqueId());
 
-    cpuConsumer = new CpuConsumer(gbConsumer, mMaxImages, /*controlledByApp*/true);
-    if (cpuConsumer == nullptr) {
-        ALOGE("Failed to allocate CpuConsumer");
+    mBufferItemConsumer =
+            new BufferItemConsumer(gbConsumer, consumerUsage, mMaxImages, /*controlledByApp*/ true);
+    if (mBufferItemConsumer == nullptr) {
+        ALOGE("Failed to allocate BufferItemConsumer");
         return AMEDIA_ERROR_UNKNOWN;
     }
 
-    mCpuConsumer = cpuConsumer;
-    mCpuConsumer->setName(consumerName);
     mProducer = gbProducer;
-
-    sp<ConsumerBase> consumer = cpuConsumer;
-    consumer->setFrameAvailableListener(mFrameListener);
+    mBufferItemConsumer->setName(consumerName);
+    mBufferItemConsumer->setFrameAvailableListener(mFrameListener);
 
     status_t res;
-    res = cpuConsumer->setDefaultBufferSize(mWidth, mHeight);
+    res = mBufferItemConsumer->setDefaultBufferSize(mWidth, mHeight);
     if (res != OK) {
-        ALOGE("Failed to set CpuConsumer buffer size");
+        ALOGE("Failed to set BufferItemConsumer buffer size");
         return AMEDIA_ERROR_UNKNOWN;
     }
-    res = cpuConsumer->setDefaultBufferFormat(mHalFormat);
+    res = mBufferItemConsumer->setDefaultBufferFormat(mHalFormat);
     if (res != OK) {
-        ALOGE("Failed to set CpuConsumer buffer format");
+        ALOGE("Failed to set BufferItemConsumer buffer format");
         return AMEDIA_ERROR_UNKNOWN;
     }
-    res = cpuConsumer->setDefaultBufferDataSpace(mHalDataSpace);
+    res = mBufferItemConsumer->setDefaultBufferDataSpace(mHalDataSpace);
     if (res != OK) {
-        ALOGE("Failed to set CpuConsumer buffer dataSpace");
+        ALOGE("Failed to set BufferItemConsumer buffer dataSpace");
         return AMEDIA_ERROR_UNKNOWN;
     }
 
@@ -208,7 +222,7 @@
     mWindow = static_cast<ANativeWindow*>(mSurface.get());
 
     for (int i = 0; i < mMaxImages; i++) {
-        CpuConsumer::LockedBuffer* buffer = new CpuConsumer::LockedBuffer;
+        BufferItem* buffer = new BufferItem;
         mBuffers.push_back(buffer);
     }
 
@@ -247,133 +261,136 @@
         image->close();
     }
 
-    // Delete LockedBuffers
+    // Delete Buffer Items
     for (auto it = mBuffers.begin();
               it != mBuffers.end(); it++) {
         delete *it;
     }
 
-    if (mCpuConsumer != nullptr) {
-        mCpuConsumer->abandon();
-        mCpuConsumer->setFrameAvailableListener(nullptr);
+    if (mBufferItemConsumer != nullptr) {
+        mBufferItemConsumer->abandon();
+        mBufferItemConsumer->setFrameAvailableListener(nullptr);
     }
 }
 
 media_status_t
-AImageReader::acquireCpuConsumerImageLocked(/*out*/AImage** image) {
+AImageReader::acquireImageLocked(/*out*/AImage** image) {
     *image = nullptr;
-    CpuConsumer::LockedBuffer* buffer = getLockedBufferLocked();
+    BufferItem* buffer = getBufferItemLocked();
     if (buffer == nullptr) {
         ALOGW("Unable to acquire a lockedBuffer, very likely client tries to lock more than"
             " maxImages buffers");
         return AMEDIA_IMGREADER_MAX_IMAGES_ACQUIRED;
     }
 
-    status_t res = mCpuConsumer->lockNextBuffer(buffer);
+    status_t res = mBufferItemConsumer->acquireBuffer(buffer, 0);
     if (res != NO_ERROR) {
-        returnLockedBufferLocked(buffer);
-        if (res != BAD_VALUE /*no buffers*/) {
-            if (res == NOT_ENOUGH_DATA) {
+        returnBufferItemLocked(buffer);
+        if (res != BufferQueue::NO_BUFFER_AVAILABLE) {
+            if (res == INVALID_OPERATION) {
                 return AMEDIA_IMGREADER_MAX_IMAGES_ACQUIRED;
             } else {
-                ALOGE("%s Fail to lockNextBuffer with error: %d ",
-                      __FUNCTION__, res);
+                ALOGE("%s: Acquire image failed with some unknown error: %s (%d)",
+                      __FUNCTION__, strerror(-res), res);
                 return AMEDIA_ERROR_UNKNOWN;
             }
         }
         return AMEDIA_IMGREADER_NO_BUFFER_AVAILABLE;
     }
 
-    if (buffer->flexFormat == HAL_PIXEL_FORMAT_YCrCb_420_SP) {
-        ALOGE("NV21 format is not supported by AImageReader");
-        return AMEDIA_ERROR_UNSUPPORTED;
-    }
+    const int bufferWidth = getBufferWidth(buffer);
+    const int bufferHeight = getBufferHeight(buffer);
+    const int bufferFmt = buffer->mGraphicBuffer->getPixelFormat();
 
-    // Check if the left-top corner of the crop rect is origin, we currently assume this point is
-    // zero, will revist this once this assumption turns out problematic.
-    Point lt = buffer->crop.leftTop();
-    if (lt.x != 0 || lt.y != 0) {
-        ALOGE("crop left top corner [%d, %d] need to be at origin", lt.x, lt.y);
-        return AMEDIA_ERROR_UNKNOWN;
-    }
+    const int readerWidth = mWidth;
+    const int readerHeight = mHeight;
+    const int readerFmt = mHalFormat;
 
-    // Check if the producer buffer configurations match what ImageReader configured.
-    int outputWidth = getBufferWidth(buffer);
-    int outputHeight = getBufferHeight(buffer);
-
-    int readerFmt = mHalFormat;
-    int readerWidth = mWidth;
-    int readerHeight = mHeight;
-
-    if ((buffer->format != HAL_PIXEL_FORMAT_BLOB) && (readerFmt != HAL_PIXEL_FORMAT_BLOB) &&
-            (readerWidth != outputWidth || readerHeight != outputHeight)) {
-        ALOGW("%s: Producer buffer size: %dx%d, doesn't match AImageReader configured size: %dx%d",
-                __FUNCTION__, outputWidth, outputHeight, readerWidth, readerHeight);
-    }
-
-    int bufFmt = buffer->format;
-    if (readerFmt == HAL_PIXEL_FORMAT_YCbCr_420_888) {
-        bufFmt = buffer->flexFormat;
-    }
-
-    if (readerFmt != bufFmt) {
-        if (readerFmt == HAL_PIXEL_FORMAT_YCbCr_420_888 && (bufFmt ==
-                HAL_PIXEL_FORMAT_YCrCb_420_SP || bufFmt == HAL_PIXEL_FORMAT_YV12)) {
-            // Special casing for when producer switches to a format compatible with flexible YUV
-            // (HAL_PIXEL_FORMAT_YCbCr_420_888).
-            mHalFormat = bufFmt;
-            ALOGD("%s: Overriding buffer format YUV_420_888 to %x.", __FUNCTION__, bufFmt);
-        } else {
-            // Return the buffer to the queue.
-            mCpuConsumer->unlockBuffer(*buffer);
-            returnLockedBufferLocked(buffer);
-
-            ALOGE("Producer output buffer format: 0x%x, ImageReader configured format: 0x%x",
-                    buffer->format, readerFmt);
-
+    // Check if the producer buffer configurations match what AImageReader configured. Add some
+    // extra checks for non-opaque formats.
+    if (!isFormatOpaque(readerFmt)) {
+        // Check if the left-top corner of the crop rect is origin, we currently assume this point
+        // is zero, will revisit this once this assumption turns out problematic.
+        Point lt = buffer->mCrop.leftTop();
+        if (lt.x != 0 || lt.y != 0) {
+            ALOGE("Crop left top corner [%d, %d] not at origin", lt.x, lt.y);
             return AMEDIA_ERROR_UNKNOWN;
         }
+
+        // Check if the producer buffer configurations match what ImageReader configured.
+        if ((bufferFmt != HAL_PIXEL_FORMAT_BLOB) && (readerFmt != HAL_PIXEL_FORMAT_BLOB) &&
+                (readerWidth != bufferWidth || readerHeight != bufferHeight)) {
+            ALOGW("%s: Buffer size: %dx%d, doesn't match AImageReader configured size: %dx%d",
+                    __FUNCTION__, bufferWidth, bufferHeight, readerWidth, readerHeight);
+        }
+
+        if (readerFmt != bufferFmt) {
+            if (readerFmt == HAL_PIXEL_FORMAT_YCbCr_420_888 && isPossiblyYUV(bufferFmt)) {
+                // Special casing for when producer switches to a format compatible with flexible
+                // YUV.
+                mHalFormat = bufferFmt;
+                ALOGD("%s: Overriding buffer format YUV_420_888 to 0x%x.", __FUNCTION__, bufferFmt);
+            } else {
+                // Return the buffer to the queue. No need to provide fence, as this buffer wasn't
+                // used anywhere yet.
+                mBufferItemConsumer->releaseBuffer(*buffer);
+                returnBufferItemLocked(buffer);
+
+                ALOGE("%s: Output buffer format: 0x%x, ImageReader configured format: 0x%x",
+                        __FUNCTION__, bufferFmt, readerFmt);
+
+                return AMEDIA_ERROR_UNKNOWN;
+            }
+        }
     }
 
     if (mHalFormat == HAL_PIXEL_FORMAT_BLOB) {
-        *image = new AImage(this, mFormat, buffer, buffer->timestamp,
+        *image = new AImage(this, mFormat, mUsage, buffer, buffer->mTimestamp,
                             readerWidth, readerHeight, mNumPlanes);
     } else {
-        *image = new AImage(this, mFormat, buffer, buffer->timestamp,
-                            outputWidth, outputHeight, mNumPlanes);
+        *image = new AImage(this, mFormat, mUsage, buffer, buffer->mTimestamp,
+                            bufferWidth, bufferHeight, mNumPlanes);
     }
     mAcquiredImages.push_back(*image);
     return AMEDIA_OK;
 }
 
-CpuConsumer::LockedBuffer*
-AImageReader::getLockedBufferLocked() {
+BufferItem*
+AImageReader::getBufferItemLocked() {
     if (mBuffers.empty()) {
         return nullptr;
     }
-    // Return a LockedBuffer pointer and remove it from the list
+    // Return a BufferItem pointer and remove it from the list
     auto it = mBuffers.begin();
-    CpuConsumer::LockedBuffer* buffer = *it;
+    BufferItem* buffer = *it;
     mBuffers.erase(it);
     return buffer;
 }
 
 void
-AImageReader::returnLockedBufferLocked(CpuConsumer::LockedBuffer* buffer) {
+AImageReader::returnBufferItemLocked(BufferItem* buffer) {
     mBuffers.push_back(buffer);
 }
 
 void
 AImageReader::releaseImageLocked(AImage* image) {
-    CpuConsumer::LockedBuffer* buffer = image->mBuffer;
+    BufferItem* buffer = image->mBuffer;
     if (buffer == nullptr) {
         // This should not happen, but is not fatal
         ALOGW("AImage %p has no buffer!", image);
         return;
     }
 
-    mCpuConsumer->unlockBuffer(*buffer);
-    returnLockedBufferLocked(buffer);
+    int fenceFd = -1;
+    media_status_t ret = image->unlockImageIfLocked(&fenceFd);
+    if (ret < 0) {
+        ALOGW("%s: AImage %p is cannot be unlocked.", __FUNCTION__, image);
+        return;
+    }
+
+    sp<Fence> releaseFence = fenceFd > 0 ? new Fence(fenceFd) : Fence::NO_FENCE;
+    mBufferItemConsumer->releaseBuffer(*buffer, releaseFence);
+    returnBufferItemLocked(buffer);
     image->mBuffer = nullptr;
 
     bool found = false;
@@ -394,29 +411,31 @@
 }
 
 int
-AImageReader::getBufferWidth(CpuConsumer::LockedBuffer* buffer) {
-    if (buffer == nullptr) return -1;
+AImageReader::getBufferWidth(BufferItem* buffer) {
+    if (buffer == NULL) return -1;
 
-    if (!buffer->crop.isEmpty()) {
-        return buffer->crop.getWidth();
+    if (!buffer->mCrop.isEmpty()) {
+        return buffer->mCrop.getWidth();
     }
-    return buffer->width;
+
+    return buffer->mGraphicBuffer->getWidth();
 }
 
 int
-AImageReader::getBufferHeight(CpuConsumer::LockedBuffer* buffer) {
-    if (buffer == nullptr) return -1;
+AImageReader::getBufferHeight(BufferItem* buffer) {
+    if (buffer == NULL) return -1;
 
-    if (!buffer->crop.isEmpty()) {
-        return buffer->crop.getHeight();
+    if (!buffer->mCrop.isEmpty()) {
+        return buffer->mCrop.getHeight();
     }
-    return buffer->height;
+
+    return buffer->mGraphicBuffer->getHeight();
 }
 
 media_status_t
 AImageReader::acquireNextImage(/*out*/AImage** image) {
     Mutex::Autolock _l(mLock);
-    return acquireCpuConsumerImageLocked(image);
+    return acquireImageLocked(image);
 }
 
 media_status_t
@@ -428,12 +447,12 @@
     *image = nullptr;
     AImage* prevImage = nullptr;
     AImage* nextImage = nullptr;
-    media_status_t ret = acquireCpuConsumerImageLocked(&prevImage);
+    media_status_t ret = acquireImageLocked(&prevImage);
     if (prevImage == nullptr) {
         return ret;
     }
     for (;;) {
-        ret = acquireCpuConsumerImageLocked(&nextImage);
+        ret = acquireImageLocked(&nextImage);
         if (nextImage == nullptr) {
             *image = prevImage;
             return AMEDIA_OK;
@@ -463,6 +482,12 @@
         return AMEDIA_ERROR_INVALID_PARAMETER;
     }
 
+    if (maxImages > BufferQueueDefs::NUM_BUFFER_SLOTS) {
+        ALOGE("%s: max outstanding image count (%d) cannot be larget than %d.",
+              __FUNCTION__, maxImages, BufferQueueDefs::NUM_BUFFER_SLOTS);
+        return AMEDIA_ERROR_INVALID_PARAMETER;
+    }
+
     if (!AImageReader::isSupportedFormat(format)) {
         ALOGE("%s: format %d is not supported by AImageReader",
                 __FUNCTION__, format);
@@ -474,8 +499,10 @@
         return AMEDIA_ERROR_INVALID_PARAMETER;
     }
 
-    //*reader = new AImageReader(width, height, format, maxImages);
-    AImageReader* tmpReader = new AImageReader(width, height, format, maxImages);
+    // Set consumer usage to AHARDWAREBUFFER_USAGE0_CPU_READ_OFTEN by default so that
+    // AImageReader_new behaves as if it's backed by CpuConsumer.
+    AImageReader* tmpReader = new AImageReader(
+        width, height, format, AImageReader::kDefaultUsage, maxImages);
     if (tmpReader == nullptr) {
         ALOGE("%s: AImageReader allocation failed", __FUNCTION__);
         return AMEDIA_ERROR_UNKNOWN;
@@ -564,7 +591,7 @@
 media_status_t AImageReader_acquireNextImage(AImageReader* reader, /*out*/AImage** image) {
     ALOGV("%s", __FUNCTION__);
     if (reader == nullptr || image == nullptr) {
-        ALOGE("%s: invalid argument. reader %p, maxImages %p",
+        ALOGE("%s: invalid argument. reader %p, image %p",
                 __FUNCTION__, reader, image);
         return AMEDIA_ERROR_INVALID_PARAMETER;
     }
@@ -575,7 +602,7 @@
 media_status_t AImageReader_acquireLatestImage(AImageReader* reader, /*out*/AImage** image) {
     ALOGV("%s", __FUNCTION__);
     if (reader == nullptr || image == nullptr) {
-        ALOGE("%s: invalid argument. reader %p, maxImages %p",
+        ALOGE("%s: invalid argument. reader %p, image %p",
                 __FUNCTION__, reader, image);
         return AMEDIA_ERROR_INVALID_PARAMETER;
     }
diff --git a/media/ndk/NdkImageReaderPriv.h b/media/ndk/NdkImageReaderPriv.h
index 8b540fa..8becb1d 100644
--- a/media/ndk/NdkImageReaderPriv.h
+++ b/media/ndk/NdkImageReaderPriv.h
@@ -25,7 +25,8 @@
 #include <utils/Mutex.h>
 #include <utils/StrongPointer.h>
 
-#include <gui/CpuConsumer.h>
+#include <gui/BufferItem.h>
+#include <gui/BufferItemConsumer.h>
 #include <gui/Surface.h>
 
 #include <media/stagefright/foundation/ALooper.h>
@@ -48,11 +49,16 @@
 
 struct AImageReader : public RefBase {
   public:
+    static const int32_t kDefaultUsage;
 
     static bool isSupportedFormat(int32_t format);
     static int getNumPlanesForFormat(int32_t format);
 
-    AImageReader(int32_t width, int32_t height, int32_t format, int32_t maxImages);
+    AImageReader(int32_t width,
+                 int32_t height,
+                 int32_t format,
+                 uint64_t usage,
+                 int32_t maxImages);
     ~AImageReader();
 
     // Inintialize AImageReader, uninitialized or failed to initialize AImageReader
@@ -68,22 +74,24 @@
     int32_t        getWidth()     const { return mWidth; };
     int32_t        getHeight()    const { return mHeight; };
     int32_t        getFormat()    const { return mFormat; };
+    uint64_t       getUsage()     const { return mUsage; };
     int32_t        getMaxImages() const { return mMaxImages; };
 
-
   private:
 
     friend struct AImage; // for grabing reader lock
 
-    media_status_t acquireCpuConsumerImageLocked(/*out*/AImage** image);
-    CpuConsumer::LockedBuffer* getLockedBufferLocked();
-    void returnLockedBufferLocked(CpuConsumer::LockedBuffer* buffer);
+    BufferItem* getBufferItemLocked();
+    void returnBufferItemLocked(BufferItem* buffer);
+
+    // Called by AImageReader_acquireXXX to acquire a Buffer and setup AImage.
+    media_status_t acquireImageLocked(/*out*/AImage** image);
 
     // Called by AImage to close image
     void releaseImageLocked(AImage* image);
 
-    static int getBufferWidth(CpuConsumer::LockedBuffer* buffer);
-    static int getBufferHeight(CpuConsumer::LockedBuffer* buffer);
+    static int getBufferWidth(BufferItem* buffer);
+    static int getBufferHeight(BufferItem* buffer);
 
     media_status_t setImageListenerLocked(AImageReader_ImageListener* listener);
 
@@ -102,12 +110,15 @@
     };
     sp<CallbackHandler> mHandler;
     sp<ALooper>         mCbLooper; // Looper thread where callbacks actually happen on
+    List<BufferItem*>   mBuffers;
 
-    List<CpuConsumer::LockedBuffer*> mBuffers;
     const int32_t mWidth;
     const int32_t mHeight;
     const int32_t mFormat;
+    const uint64_t mUsage;
     const int32_t mMaxImages;
+
+    // TODO(jwcai) Seems completely unused in AImageReader class.
     const int32_t mNumPlanes;
 
     struct FrameListener : public ConsumerBase::FrameAvailableListener {
@@ -130,7 +141,7 @@
 
     sp<IGraphicBufferProducer> mProducer;
     sp<Surface>                mSurface;
-    sp<CpuConsumer>            mCpuConsumer;
+    sp<BufferItemConsumer>     mBufferItemConsumer;
     sp<ANativeWindow>          mWindow;
 
     List<AImage*>              mAcquiredImages;
diff --git a/media/ndk/NdkMediaCodec.cpp b/media/ndk/NdkMediaCodec.cpp
index 3d1eca1..22c90e2 100644
--- a/media/ndk/NdkMediaCodec.cpp
+++ b/media/ndk/NdkMediaCodec.cpp
@@ -30,10 +30,10 @@
 
 #include <media/stagefright/foundation/ALooper.h>
 #include <media/stagefright/foundation/AMessage.h>
-#include <media/stagefright/foundation/ABuffer.h>
 
 #include <media/stagefright/MediaCodec.h>
 #include <media/stagefright/MediaErrors.h>
+#include <media/MediaCodecBuffer.h>
 
 using namespace android;
 
@@ -268,13 +268,17 @@
 
 EXPORT
 uint8_t* AMediaCodec_getInputBuffer(AMediaCodec *mData, size_t idx, size_t *out_size) {
-    android::Vector<android::sp<android::ABuffer> > abufs;
+    android::Vector<android::sp<android::MediaCodecBuffer> > abufs;
     if (mData->mCodec->getInputBuffers(&abufs) == 0) {
         size_t n = abufs.size();
         if (idx >= n) {
             ALOGE("buffer index %zu out of range", idx);
             return NULL;
         }
+        if (abufs[idx] == NULL) {
+            ALOGE("buffer index %zu is NULL", idx);
+            return NULL;
+        }
         if (out_size != NULL) {
             *out_size = abufs[idx]->capacity();
         }
@@ -286,7 +290,7 @@
 
 EXPORT
 uint8_t* AMediaCodec_getOutputBuffer(AMediaCodec *mData, size_t idx, size_t *out_size) {
-    android::Vector<android::sp<android::ABuffer> > abufs;
+    android::Vector<android::sp<android::MediaCodecBuffer> > abufs;
     if (mData->mCodec->getOutputBuffers(&abufs) == 0) {
         size_t n = abufs.size();
         if (idx >= n) {
diff --git a/media/ndk/NdkMediaDrm.cpp b/media/ndk/NdkMediaDrm.cpp
index 166e6f1..7a9240b 100644
--- a/media/ndk/NdkMediaDrm.cpp
+++ b/media/ndk/NdkMediaDrm.cpp
@@ -99,11 +99,12 @@
             break;
         default:
             ALOGE("Invalid event DrmPlugin::EventType %d, ignored", (int)eventType);
-            return;
+            goto cleanup;
     }
 
     (*mListener)(mObj, &sessionId, ndkEventType, extra, data, dataSize);
 
+ cleanup:
     delete [] sessionId.ptr;
     delete [] data;
 }
@@ -171,7 +172,8 @@
         return NULL;
     }
 
-    status_t err = drm->createPlugin(uuid);
+    String8 nullPackageName;
+    status_t err = drm->createPlugin(uuid, nullPackageName);
 
     if (err != OK) {
         return NULL;
diff --git a/media/utils/Android.mk b/media/utils/Android.mk
index f482d1a..21d1b5b 100644
--- a/media/utils/Android.mk
+++ b/media/utils/Android.mk
@@ -20,6 +20,7 @@
   BatteryNotifier.cpp \
   ISchedulingPolicyService.cpp \
   MemoryLeakTrackUtil.cpp \
+  ProcessInfo.cpp \
   SchedulingPolicyService.cpp
 
 LOCAL_SHARED_LIBRARIES := \
diff --git a/media/utils/BatteryNotifier.cpp b/media/utils/BatteryNotifier.cpp
index 341d391..09bc042 100644
--- a/media/utils/BatteryNotifier.cpp
+++ b/media/utils/BatteryNotifier.cpp
@@ -29,7 +29,7 @@
     BatteryNotifier::getInstance().onBatteryStatServiceDied();
 }
 
-BatteryNotifier::BatteryNotifier() : mVideoRefCount(0), mAudioRefCount(0) {}
+BatteryNotifier::BatteryNotifier() {}
 
 BatteryNotifier::~BatteryNotifier() {
     Mutex::Autolock _l(mLock);
@@ -38,77 +38,83 @@
     }
 }
 
-void BatteryNotifier::noteStartVideo() {
+void BatteryNotifier::noteStartVideo(uid_t uid) {
     Mutex::Autolock _l(mLock);
     sp<IBatteryStats> batteryService = getBatteryService_l();
-    if (mVideoRefCount == 0 && batteryService != nullptr) {
-        batteryService->noteStartVideo(AID_MEDIA);
+    if (mVideoRefCounts[uid] == 0 && batteryService != nullptr) {
+        batteryService->noteStartVideo(uid);
     }
-    mVideoRefCount++;
+    mVideoRefCounts[uid]++;
 }
 
-void BatteryNotifier::noteStopVideo() {
+void BatteryNotifier::noteStopVideo(uid_t uid) {
     Mutex::Autolock _l(mLock);
-    if (mVideoRefCount == 0) {
-        ALOGW("%s: video refcount is broken.", __FUNCTION__);
+    if (mVideoRefCounts.find(uid) == mVideoRefCounts.end()) {
+        ALOGW("%s: video refcount is broken for uid(%d).", __FUNCTION__, (int)uid);
         return;
     }
 
     sp<IBatteryStats> batteryService = getBatteryService_l();
 
-    mVideoRefCount--;
-    if (mVideoRefCount == 0 && batteryService != nullptr) {
-        batteryService->noteStopVideo(AID_MEDIA);
+    mVideoRefCounts[uid]--;
+    if (mVideoRefCounts[uid] == 0) {
+        if (batteryService != nullptr) {
+            batteryService->noteStopVideo(uid);
+        }
+        mVideoRefCounts.erase(uid);
     }
 }
 
 void BatteryNotifier::noteResetVideo() {
     Mutex::Autolock _l(mLock);
     sp<IBatteryStats> batteryService = getBatteryService_l();
-    mVideoRefCount = 0;
+    mVideoRefCounts.clear();
     if (batteryService != nullptr) {
         batteryService->noteResetVideo();
     }
 }
 
-void BatteryNotifier::noteStartAudio() {
+void BatteryNotifier::noteStartAudio(uid_t uid) {
     Mutex::Autolock _l(mLock);
     sp<IBatteryStats> batteryService = getBatteryService_l();
-    if (mAudioRefCount == 0 && batteryService != nullptr) {
-        batteryService->noteStartAudio(AID_AUDIOSERVER);
+    if (mAudioRefCounts[uid] == 0 && batteryService != nullptr) {
+        batteryService->noteStartAudio(uid);
     }
-    mAudioRefCount++;
+    mAudioRefCounts[uid]++;
 }
 
-void BatteryNotifier::noteStopAudio() {
+void BatteryNotifier::noteStopAudio(uid_t uid) {
     Mutex::Autolock _l(mLock);
-    if (mAudioRefCount == 0) {
-        ALOGW("%s: audio refcount is broken.", __FUNCTION__);
+    if (mAudioRefCounts.find(uid) == mAudioRefCounts.end()) {
+        ALOGW("%s: audio refcount is broken for uid(%d).", __FUNCTION__, (int)uid);
         return;
     }
 
     sp<IBatteryStats> batteryService = getBatteryService_l();
 
-    mAudioRefCount--;
-    if (mAudioRefCount == 0 && batteryService != nullptr) {
-        batteryService->noteStopAudio(AID_AUDIOSERVER);
+    mAudioRefCounts[uid]--;
+    if (mAudioRefCounts[uid] == 0) {
+        if (batteryService != nullptr) {
+            batteryService->noteStopAudio(uid);
+        }
+        mAudioRefCounts.erase(uid);
     }
 }
 
 void BatteryNotifier::noteResetAudio() {
     Mutex::Autolock _l(mLock);
     sp<IBatteryStats> batteryService = getBatteryService_l();
-    mAudioRefCount = 0;
+    mAudioRefCounts.clear();
     if (batteryService != nullptr) {
         batteryService->noteResetAudio();
     }
 }
 
-void BatteryNotifier::noteFlashlightOn(const String8& id, int uid) {
+void BatteryNotifier::noteFlashlightOn(const String8& id, uid_t uid) {
     Mutex::Autolock _l(mLock);
     sp<IBatteryStats> batteryService = getBatteryService_l();
 
-    std::pair<String8, int> k = std::make_pair(id, uid);
+    std::pair<String8, uid_t> k = std::make_pair(id, uid);
     if (!mFlashlightState[k]) {
         mFlashlightState[k] = true;
         if (batteryService != nullptr) {
@@ -117,11 +123,11 @@
     }
 }
 
-void BatteryNotifier::noteFlashlightOff(const String8& id, int uid) {
+void BatteryNotifier::noteFlashlightOff(const String8& id, uid_t uid) {
     Mutex::Autolock _l(mLock);
     sp<IBatteryStats> batteryService = getBatteryService_l();
 
-    std::pair<String8, int> k = std::make_pair(id, uid);
+    std::pair<String8, uid_t> k = std::make_pair(id, uid);
     if (mFlashlightState[k]) {
         mFlashlightState[k] = false;
         if (batteryService != nullptr) {
@@ -139,10 +145,10 @@
     }
 }
 
-void BatteryNotifier::noteStartCamera(const String8& id, int uid) {
+void BatteryNotifier::noteStartCamera(const String8& id, uid_t uid) {
     Mutex::Autolock _l(mLock);
     sp<IBatteryStats> batteryService = getBatteryService_l();
-    std::pair<String8, int> k = std::make_pair(id, uid);
+    std::pair<String8, uid_t> k = std::make_pair(id, uid);
     if (!mCameraState[k]) {
         mCameraState[k] = true;
         if (batteryService != nullptr) {
@@ -151,10 +157,10 @@
     }
 }
 
-void BatteryNotifier::noteStopCamera(const String8& id, int uid) {
+void BatteryNotifier::noteStopCamera(const String8& id, uid_t uid) {
     Mutex::Autolock _l(mLock);
     sp<IBatteryStats> batteryService = getBatteryService_l();
-    std::pair<String8, int> k = std::make_pair(id, uid);
+    std::pair<String8, uid_t> k = std::make_pair(id, uid);
     if (mCameraState[k]) {
         mCameraState[k] = false;
         if (batteryService != nullptr) {
@@ -176,7 +182,7 @@
     Mutex::Autolock _l(mLock);
     mBatteryStatService.clear();
     mDeathNotifier.clear();
-    // Do not reset mVideoRefCount and mAudioRefCount here. The ref
+    // Do not reset mVideoRefCounts and mAudioRefCounts here. The ref
     // counting is independent of the battery service availability.
     // We need this if battery service becomes available after media
     // started.
@@ -205,11 +211,13 @@
         // Notify start now if mediaserver or audioserver is already started.
         // 1) mediaserver and audioserver is started before batterystats service
         // 2) batterystats server may have crashed.
-        if (mVideoRefCount > 0) {
-            mBatteryStatService->noteStartVideo(AID_MEDIA);
+        std::map<uid_t, int>::iterator it = mVideoRefCounts.begin();
+        for (; it != mVideoRefCounts.end(); ++it) {
+            mBatteryStatService->noteStartVideo(it->first);
         }
-        if (mAudioRefCount > 0) {
-            mBatteryStatService->noteStartAudio(AID_AUDIOSERVER);
+        it = mAudioRefCounts.begin();
+        for (; it != mAudioRefCounts.end(); ++it) {
+            mBatteryStatService->noteStartAudio(it->first);
         }
         // TODO: Notify for camera and flashlight state as well?
     }
diff --git a/media/utils/ISchedulingPolicyService.cpp b/media/utils/ISchedulingPolicyService.cpp
index f5bfe20..22fbc97 100644
--- a/media/utils/ISchedulingPolicyService.cpp
+++ b/media/utils/ISchedulingPolicyService.cpp
@@ -37,13 +37,15 @@
     {
     }
 
-    virtual int requestPriority(int32_t pid, int32_t tid, int32_t prio, bool asynchronous)
+    virtual int requestPriority(int32_t pid, int32_t tid,
+                                int32_t prio, bool isForApp, bool asynchronous)
     {
         Parcel data, reply;
         data.writeInterfaceToken(ISchedulingPolicyService::getInterfaceDescriptor());
         data.writeInt32(pid);
         data.writeInt32(tid);
         data.writeInt32(prio);
+        data.writeBool(isForApp);
         uint32_t flags = asynchronous ? IBinder::FLAG_ONEWAY : 0;
         status_t status = remote()->transact(REQUEST_PRIORITY_TRANSACTION, data, &reply, flags);
         if (status != NO_ERROR) {
diff --git a/media/utils/ISchedulingPolicyService.h b/media/utils/ISchedulingPolicyService.h
index b94b191..1015677 100644
--- a/media/utils/ISchedulingPolicyService.h
+++ b/media/utils/ISchedulingPolicyService.h
@@ -27,7 +27,7 @@
     DECLARE_META_INTERFACE(SchedulingPolicyService);
 
     virtual int         requestPriority(/*pid_t*/int32_t pid, /*pid_t*/int32_t tid,
-                                                int32_t prio, bool asynchronous) = 0;
+                                        int32_t prio, bool isForApp, bool asynchronous) = 0;
 
 };
 
diff --git a/media/libstagefright/ProcessInfo.cpp b/media/utils/ProcessInfo.cpp
similarity index 100%
rename from media/libstagefright/ProcessInfo.cpp
rename to media/utils/ProcessInfo.cpp
diff --git a/media/utils/SchedulingPolicyService.cpp b/media/utils/SchedulingPolicyService.cpp
index 17ee9bc..d7055ef 100644
--- a/media/utils/SchedulingPolicyService.cpp
+++ b/media/utils/SchedulingPolicyService.cpp
@@ -28,7 +28,7 @@
 static const String16 _scheduling_policy("scheduling_policy");
 static Mutex sMutex;
 
-int requestPriority(pid_t pid, pid_t tid, int32_t prio, bool asynchronous)
+int requestPriority(pid_t pid, pid_t tid, int32_t prio, bool isForApp, bool asynchronous)
 {
     // FIXME merge duplicated code related to service lookup, caching, and error recovery
     int ret;
@@ -47,7 +47,7 @@
             sSchedulingPolicyService = sps;
             sMutex.unlock();
         }
-        ret = sps->requestPriority(pid, tid, prio, asynchronous);
+        ret = sps->requestPriority(pid, tid, prio, isForApp, asynchronous);
         if (ret != DEAD_OBJECT) {
             break;
         }
diff --git a/media/utils/include/mediautils/BatteryNotifier.h b/media/utils/include/mediautils/BatteryNotifier.h
index 49048042..a4e42ad 100644
--- a/media/utils/include/mediautils/BatteryNotifier.h
+++ b/media/utils/include/mediautils/BatteryNotifier.h
@@ -37,17 +37,17 @@
 public:
     ~BatteryNotifier();
 
-    void noteStartVideo();
-    void noteStopVideo();
+    void noteStartVideo(uid_t uid);
+    void noteStopVideo(uid_t uid);
     void noteResetVideo();
-    void noteStartAudio();
-    void noteStopAudio();
+    void noteStartAudio(uid_t uid);
+    void noteStopAudio(uid_t uid);
     void noteResetAudio();
-    void noteFlashlightOn(const String8& id, int uid);
-    void noteFlashlightOff(const String8& id, int uid);
+    void noteFlashlightOn(const String8& id, uid_t uid);
+    void noteFlashlightOff(const String8& id, uid_t uid);
     void noteResetFlashlight();
-    void noteStartCamera(const String8& id, int uid);
-    void noteStopCamera(const String8& id, int uid);
+    void noteStartCamera(const String8& id, uid_t uid);
+    void noteStopCamera(const String8& id, uid_t uid);
     void noteResetCamera();
 
 private:
@@ -58,10 +58,10 @@
     };
 
     Mutex mLock;
-    int mVideoRefCount;
-    int mAudioRefCount;
-    std::map<std::pair<String8, int>, bool> mFlashlightState;
-    std::map<std::pair<String8, int>, bool> mCameraState;
+    std::map<uid_t, int> mVideoRefCounts;
+    std::map<uid_t, int> mAudioRefCounts;
+    std::map<std::pair<String8, uid_t>, bool> mFlashlightState;
+    std::map<std::pair<String8, uid_t>, bool> mCameraState;
     sp<IBatteryStats> mBatteryStatService;
     sp<DeathNotifier> mDeathNotifier;
 
diff --git a/media/utils/include/mediautils/SchedulingPolicyService.h b/media/utils/include/mediautils/SchedulingPolicyService.h
index a9870d4..47d8734 100644
--- a/media/utils/include/mediautils/SchedulingPolicyService.h
+++ b/media/utils/include/mediautils/SchedulingPolicyService.h
@@ -24,7 +24,7 @@
 // The asynchronous parameter should be 'true' to return immediately,
 // after the request is enqueued but not necessarily executed.
 // The default value 'false' means to return after request has been enqueued and executed.
-int requestPriority(pid_t pid, pid_t tid, int32_t prio, bool asynchronous = false);
+int requestPriority(pid_t pid, pid_t tid, int32_t prio, bool isForApp, bool asynchronous = false);
 
 }   // namespace android
 
diff --git a/radio/IRadio.cpp b/radio/IRadio.cpp
index e6dbdc3..72f3b68 100644
--- a/radio/IRadio.cpp
+++ b/radio/IRadio.cpp
@@ -113,7 +113,7 @@
         if (status == NO_ERROR) {
             status = (status_t)reply.readInt32();
             if (status == NO_ERROR) {
-                int muteread = reply.readInt32();
+                int32_t muteread = reply.readInt32();
                 *mute = muteread != 0;
             }
         }
@@ -146,12 +146,12 @@
         return status;
     }
 
-    virtual status_t tune(unsigned int channel, unsigned int subChannel)
+    virtual status_t tune(uint32_t channel, uint32_t subChannel)
     {
         Parcel data, reply;
         data.writeInterfaceToken(IRadio::getInterfaceDescriptor());
-        data.writeInt32(channel);
-        data.writeInt32(subChannel);
+        data.writeUint32(channel);
+        data.writeUint32(subChannel);
         status_t status = remote()->transact(TUNE, data, &reply);
         if (status == NO_ERROR) {
             status = (status_t)reply.readInt32();
@@ -173,7 +173,7 @@
     virtual status_t getProgramInformation(struct radio_program_info *info)
     {
         Parcel data, reply;
-        if (info == NULL) {
+        if (info == nullptr || info->metadata == nullptr) {
             return BAD_VALUE;
         }
         radio_metadata_t *metadata = info->metadata;
@@ -183,22 +183,19 @@
             status = (status_t)reply.readInt32();
             if (status == NO_ERROR) {
                 reply.read(info, sizeof(struct radio_program_info));
+                // restore local metadata pointer
                 info->metadata = metadata;
-                if (metadata == NULL) {
-                    return status;
+
+                uint32_t metadataSize = reply.readUint32();
+                if (metadataSize != 0) {
+                    radio_metadata_t *newMetadata = (radio_metadata_t *)malloc(metadataSize);
+                    if (newMetadata == NULL) {
+                        return NO_MEMORY;
+                    }
+                    reply.read(newMetadata, metadataSize);
+                    status = radio_metadata_add_metadata(&info->metadata, newMetadata);
+                    free(newMetadata);
                 }
-                size_t size = (size_t)reply.readInt32();
-                if (size == 0) {
-                    return status;
-                }
-                metadata =
-                    (radio_metadata_t *)calloc(size / sizeof(unsigned int), sizeof(unsigned int));
-                if (metadata == NULL) {
-                    return NO_MEMORY;
-                }
-                reply.read(metadata, size);
-                status = radio_metadata_add_metadata(&info->metadata, metadata);
-                free(metadata);
             }
         }
         return status;
@@ -289,8 +286,8 @@
         }
         case TUNE: {
             CHECK_INTERFACE(IRadio, data, reply);
-            unsigned int channel = (unsigned int)data.readInt32();
-            unsigned int subChannel = (unsigned int)data.readInt32();
+            uint32_t channel = data.readUint32();
+            uint32_t subChannel = data.readUint32();
             status_t status = tune(channel, subChannel);
             reply->writeInt32(status);
             return NO_ERROR;
@@ -310,13 +307,12 @@
             reply->writeInt32(status);
             if (status == NO_ERROR) {
                 reply->write(&info, sizeof(struct radio_program_info));
-                int count = radio_metadata_get_count(info.metadata);
-                if (count > 0) {
+                if (radio_metadata_get_count(info.metadata) > 0) {
                     size_t size = radio_metadata_get_size(info.metadata);
-                    reply->writeInt32(size);
+                    reply->writeUint32((uint32_t)size);
                     reply->write(info.metadata, size);
                 } else {
-                    reply->writeInt32(0);
+                    reply->writeUint32(0);
                 }
             }
             return NO_ERROR;
diff --git a/radio/IRadioService.cpp b/radio/IRadioService.cpp
index be7d21e..72e3a61 100644
--- a/radio/IRadioService.cpp
+++ b/radio/IRadioService.cpp
@@ -16,8 +16,7 @@
 */
 
 #define LOG_TAG "BpRadioService"
-//
-#define LOG_NDEBUG 0
+//#define LOG_NDEBUG 0
 
 #include <utils/Log.h>
 #include <utils/Errors.h>
@@ -58,12 +57,12 @@
         }
         Parcel data, reply;
         data.writeInterfaceToken(IRadioService::getInterfaceDescriptor());
-        unsigned int numModulesReq = (properties == NULL) ? 0 : *numModules;
+        uint32_t numModulesReq = (properties == NULL) ? 0 : *numModules;
         data.writeInt32(numModulesReq);
         status_t status = remote()->transact(LIST_MODULES, data, &reply);
         if (status == NO_ERROR) {
             status = (status_t)reply.readInt32();
-            *numModules = (unsigned int)reply.readInt32();
+            *numModules = (uint32_t)reply.readInt32();
         }
         ALOGV("listModules() status %d got *numModules %d", status, *numModules);
         if (status == NO_ERROR) {
@@ -120,11 +119,11 @@
     switch(code) {
         case LIST_MODULES: {
             CHECK_INTERFACE(IRadioService, data, reply);
-            unsigned int numModulesReq = data.readInt32();
+            uint32_t numModulesReq = data.readInt32();
             if (numModulesReq > MAX_ITEMS_PER_LIST) {
                 numModulesReq = MAX_ITEMS_PER_LIST;
             }
-            unsigned int numModules = numModulesReq;
+            uint32_t numModules = numModulesReq;
             struct radio_properties *properties =
                     (struct radio_properties *)calloc(numModulesReq,
                                                       sizeof(struct radio_properties));
diff --git a/radio/Radio.cpp b/radio/Radio.cpp
index 3c04fb0..fa39589 100644
--- a/radio/Radio.cpp
+++ b/radio/Radio.cpp
@@ -240,20 +240,31 @@
         return;
     }
 
+    // The event layout in shared memory is:
+    // sizeof(struct radio_event) bytes : the event itself
+    // 4 bytes                          : metadata size or 0
+    // N bytes                          : metadata if present
     struct radio_event *event = (struct radio_event *)eventMemory->pointer();
+    uint32_t metadataOffset = sizeof(struct radio_event) + sizeof(uint32_t);
+    uint32_t metadataSize = *(uint32_t *)((uint8_t *)event + metadataOffset - sizeof(uint32_t));
+
     // restore local metadata pointer from offset
     switch (event->type) {
     case RADIO_EVENT_TUNED:
     case RADIO_EVENT_AF_SWITCH:
-        if (event->info.metadata != NULL) {
+        if (metadataSize != 0) {
             event->info.metadata =
-                    (radio_metadata_t *)((char *)event + (size_t)event->info.metadata);
+                    (radio_metadata_t *)((uint8_t *)event + metadataOffset);
+        } else {
+            event->info.metadata = 0;
         }
         break;
     case RADIO_EVENT_METADATA:
-        if (event->metadata != NULL) {
+        if (metadataSize != 0) {
             event->metadata =
-                    (radio_metadata_t *)((char *)event + (size_t)event->metadata);
+                    (radio_metadata_t *)((uint8_t *)event + metadataOffset);
+        } else {
+            event->metadata = 0;
         }
         break;
     default:
diff --git a/services/audioflinger/Android.mk b/services/audioflinger/Android.mk
index 5c28e46..0c620f4 100644
--- a/services/audioflinger/Android.mk
+++ b/services/audioflinger/Android.mk
@@ -28,20 +28,19 @@
     AudioStreamOut.cpp          \
     SpdifStreamOut.cpp          \
     Effects.cpp                 \
-    AudioMixer.cpp.arm          \
-    BufferProviders.cpp         \
     PatchPanel.cpp              \
-    StateQueue.cpp
+    StateQueue.cpp              \
+    BufLog.cpp                  \
+    TypedLogger.cpp
 
 LOCAL_C_INCLUDES := \
     $(TOPDIR)frameworks/av/services/audiopolicy \
     $(TOPDIR)frameworks/av/services/medialog \
-    $(TOPDIR)external/sonic \
-    $(call include-path-for, audio-effects) \
     $(call include-path-for, audio-utils)
 
 LOCAL_SHARED_LIBRARIES := \
-    libaudioresampler \
+    libaudiohal \
+    libaudioprocessing \
     libaudiospdif \
     libaudioutils \
     libcutils \
@@ -52,18 +51,14 @@
     libmedialogservice \
     libmediautils \
     libnbaio \
-    libhardware \
-    libhardware_legacy \
-    libeffects \
     libpowermanager \
     libserviceutility \
-    libsonic \
     libmediautils \
-    libmemunreachable
+    libmemunreachable \
+    libmedia_helper
 
 LOCAL_STATIC_LIBRARIES := \
     libcpustats \
-    libmedia_helper
 
 LOCAL_MULTILIB := $(AUDIOSERVER_MULTILIB)
 
@@ -89,59 +84,4 @@
 
 include $(BUILD_SHARED_LIBRARY)
 
-#
-# build audio resampler test tool
-#
-include $(CLEAR_VARS)
-
-LOCAL_SRC_FILES:=               \
-    test-resample.cpp           \
-
-LOCAL_C_INCLUDES := \
-    $(call include-path-for, audio-utils)
-
-LOCAL_STATIC_LIBRARIES := \
-    libsndfile
-
-LOCAL_SHARED_LIBRARIES := \
-    libaudioresampler \
-    libaudioutils \
-    libdl \
-    libcutils \
-    libutils \
-    liblog
-
-LOCAL_MODULE:= test-resample
-
-LOCAL_MODULE_TAGS := optional
-
-LOCAL_CFLAGS := -Werror -Wall
-
-include $(BUILD_EXECUTABLE)
-
-include $(CLEAR_VARS)
-
-LOCAL_SRC_FILES:= \
-    AudioResampler.cpp.arm \
-    AudioResamplerCubic.cpp.arm \
-    AudioResamplerSinc.cpp.arm \
-    AudioResamplerDyn.cpp.arm
-
-LOCAL_C_INCLUDES := \
-    $(call include-path-for, audio-utils)
-
-LOCAL_SHARED_LIBRARIES := \
-    libcutils \
-    libdl \
-    liblog
-
-LOCAL_MODULE := libaudioresampler
-
-LOCAL_CFLAGS := -Werror -Wall
-
-# uncomment to disable NEON on architectures that actually do support NEON, for benchmarking
-#LOCAL_CFLAGS += -DUSE_NEON=false
-
-include $(BUILD_SHARED_LIBRARY)
-
 include $(call all-makefiles-under,$(LOCAL_PATH))
diff --git a/services/audioflinger/AudioFlinger.cpp b/services/audioflinger/AudioFlinger.cpp
index ab42d77..7eb179a 100644
--- a/services/audioflinger/AudioFlinger.cpp
+++ b/services/audioflinger/AudioFlinger.cpp
@@ -31,6 +31,11 @@
 #include <utils/Log.h>
 #include <utils/Trace.h>
 #include <binder/Parcel.h>
+#include <media/audiohal/DeviceHalInterface.h>
+#include <media/audiohal/DevicesFactoryHalInterface.h>
+#include <media/audiohal/EffectsFactoryHalInterface.h>
+#include <media/AudioParameter.h>
+#include <media/TypeConverter.h>
 #include <memunreachable/memunreachable.h>
 #include <utils/String16.h>
 #include <utils/threads.h>
@@ -40,18 +45,15 @@
 #include <cutils/properties.h>
 
 #include <system/audio.h>
-#include <hardware/audio.h>
 
-#include "AudioMixer.h"
 #include "AudioFlinger.h"
 #include "ServiceUtilities.h"
 
 #include <media/AudioResamplerPublic.h>
 
-#include <media/EffectsFactoryApi.h>
-#include <audio_effects/effect_visualizer.h>
-#include <audio_effects/effect_ns.h>
-#include <audio_effects/effect_aec.h>
+#include <system/audio_effects/effect_visualizer.h>
+#include <system/audio_effects/effect_ns.h>
+#include <system/audio_effects/effect_aec.h>
 
 #include <audio_utils/primitives.h>
 
@@ -65,6 +67,11 @@
 #include <mediautils/BatteryNotifier.h>
 #include <private/android_filesystem_config.h>
 
+//#define BUFLOG_NDEBUG 0
+#include <BufLog.h>
+
+#include "TypedLogger.h"
+
 // ----------------------------------------------------------------------------
 
 // Note: the following macro is used for extremely verbose logging message.  In
@@ -85,12 +92,14 @@
 static const char kDeadlockedString[] = "AudioFlinger may be deadlocked\n";
 static const char kHardwareLockedString[] = "Hardware lock is taken\n";
 static const char kClientLockedString[] = "Client lock is taken\n";
+static const char kNoEffectsFactory[] = "Effects Factory is absent\n";
 
 
 nsecs_t AudioFlinger::mStandbyTimeInNsecs = kDefaultStandbyTimeInNsecs;
 
 uint32_t AudioFlinger::mScreenState;
 
+
 #ifdef TEE_SINK
 bool AudioFlinger::mTeeSinkInputEnabled = false;
 bool AudioFlinger::mTeeSinkOutputEnabled = false;
@@ -105,75 +114,22 @@
 // we define a minimum time during which a global effect is considered enabled.
 static const nsecs_t kMinGlobalEffectEnabletimeNs = seconds(7200);
 
+Mutex gLock;
+wp<AudioFlinger> gAudioFlinger;
+
 // ----------------------------------------------------------------------------
 
-const char *formatToString(audio_format_t format) {
-    switch (audio_get_main_format(format)) {
-    case AUDIO_FORMAT_PCM:
-        switch (format) {
-        case AUDIO_FORMAT_PCM_16_BIT: return "pcm16";
-        case AUDIO_FORMAT_PCM_8_BIT: return "pcm8";
-        case AUDIO_FORMAT_PCM_32_BIT: return "pcm32";
-        case AUDIO_FORMAT_PCM_8_24_BIT: return "pcm8.24";
-        case AUDIO_FORMAT_PCM_FLOAT: return "pcmfloat";
-        case AUDIO_FORMAT_PCM_24_BIT_PACKED: return "pcm24";
-        default:
-            break;
-        }
-        break;
-    case AUDIO_FORMAT_MP3: return "mp3";
-    case AUDIO_FORMAT_AMR_NB: return "amr-nb";
-    case AUDIO_FORMAT_AMR_WB: return "amr-wb";
-    case AUDIO_FORMAT_AAC: return "aac";
-    case AUDIO_FORMAT_HE_AAC_V1: return "he-aac-v1";
-    case AUDIO_FORMAT_HE_AAC_V2: return "he-aac-v2";
-    case AUDIO_FORMAT_VORBIS: return "vorbis";
-    case AUDIO_FORMAT_OPUS: return "opus";
-    case AUDIO_FORMAT_AC3: return "ac-3";
-    case AUDIO_FORMAT_E_AC3: return "e-ac-3";
-    case AUDIO_FORMAT_IEC61937: return "iec61937";
-    case AUDIO_FORMAT_DTS: return "dts";
-    case AUDIO_FORMAT_DTS_HD: return "dts-hd";
-    case AUDIO_FORMAT_DOLBY_TRUEHD: return "dolby-truehd";
-    default:
-        break;
-    }
-    return "unknown";
-}
-
-static int load_audio_interface(const char *if_name, audio_hw_device_t **dev)
-{
-    const hw_module_t *mod;
-    int rc;
-
-    rc = hw_get_module_by_class(AUDIO_HARDWARE_MODULE_ID, if_name, &mod);
-    ALOGE_IF(rc, "%s couldn't load audio hw module %s.%s (%s)", __func__,
-                 AUDIO_HARDWARE_MODULE_ID, if_name, strerror(-rc));
-    if (rc) {
-        goto out;
-    }
-    rc = audio_hw_device_open(mod, dev);
-    ALOGE_IF(rc, "%s couldn't open audio hw device in %s.%s (%s)", __func__,
-                 AUDIO_HARDWARE_MODULE_ID, if_name, strerror(-rc));
-    if (rc) {
-        goto out;
-    }
-    if ((*dev)->common.version < AUDIO_DEVICE_API_VERSION_MIN) {
-        ALOGE("%s wrong audio hw device version %04x", __func__, (*dev)->common.version);
-        rc = BAD_VALUE;
-        goto out;
-    }
-    return 0;
-
-out:
-    *dev = NULL;
-    return rc;
+std::string formatToString(audio_format_t format) {
+    std::string result;
+    FormatConverter::toString(format, result);
+    return result;
 }
 
 // ----------------------------------------------------------------------------
 
 AudioFlinger::AudioFlinger()
     : BnAudioFlinger(),
+      mMediaLogNotifier(new AudioFlinger::MediaLogNotifier()),
       mPrimaryHardwareDev(NULL),
       mAudioHwDevs(NULL),
       mHardwareStatus(AUDIO_HW_IDLE),
@@ -205,6 +161,11 @@
     // in bad state, reset the state upon service start.
     BatteryNotifier::getInstance().noteResetAudio();
 
+    mDevicesFactoryHal = DevicesFactoryHalInterface::create();
+    mEffectsFactoryHal = EffectsFactoryHalInterface::create();
+
+    mMediaLogNotifier->run("MediaLogNotifier");
+
 #ifdef TEE_SINK
     char value[PROPERTY_VALUE_MAX];
     (void) property_get("ro.debuggable", value, "0");
@@ -248,6 +209,8 @@
     mPatchPanel = new PatchPanel(this);
 
     mMode = AUDIO_MODE_NORMAL;
+
+    gAudioFlinger = this;
 }
 
 AudioFlinger::~AudioFlinger()
@@ -263,7 +226,6 @@
 
     for (size_t i = 0; i < mAudioHwDevs.size(); i++) {
         // no mHardwareLock needed, as there are no other references to this
-        audio_hw_device_close(mAudioHwDevs.valueAt(i)->hwDevice());
         delete mAudioHwDevs.valueAt(i);
     }
 
@@ -281,6 +243,85 @@
     }
 }
 
+//static
+__attribute__ ((visibility ("default")))
+status_t MmapStreamInterface::openMmapStream(MmapStreamInterface::stream_direction_t direction,
+                                             const audio_attributes_t *attr,
+                                             audio_config_base_t *config,
+                                             const MmapStreamInterface::Client& client,
+                                             audio_port_handle_t *deviceId,
+                                             const sp<MmapStreamCallback>& callback,
+                                             sp<MmapStreamInterface>& interface)
+{
+    sp<AudioFlinger> af;
+    {
+        Mutex::Autolock _l(gLock);
+        af = gAudioFlinger.promote();
+    }
+    status_t ret = NO_INIT;
+    if (af != 0) {
+        ret = af->openMmapStream(
+                direction, attr, config, client, deviceId, callback, interface);
+    }
+    return ret;
+}
+
+status_t AudioFlinger::openMmapStream(MmapStreamInterface::stream_direction_t direction,
+                                      const audio_attributes_t *attr,
+                                      audio_config_base_t *config,
+                                      const MmapStreamInterface::Client& client,
+                                      audio_port_handle_t *deviceId,
+                                      const sp<MmapStreamCallback>& callback,
+                                      sp<MmapStreamInterface>& interface)
+{
+    status_t ret = initCheck();
+    if (ret != NO_ERROR) {
+        return ret;
+    }
+
+    audio_session_t sessionId = (audio_session_t) newAudioUniqueId(AUDIO_UNIQUE_ID_USE_SESSION);
+    audio_stream_type_t streamType = AUDIO_STREAM_DEFAULT;
+    audio_io_handle_t io;
+    audio_port_handle_t portId = AUDIO_PORT_HANDLE_NONE;
+    if (direction == MmapStreamInterface::DIRECTION_OUTPUT) {
+        audio_config_t fullConfig = AUDIO_CONFIG_INITIALIZER;
+        fullConfig.sample_rate = config->sample_rate;
+        fullConfig.channel_mask = config->channel_mask;
+        fullConfig.format = config->format;
+        ret = AudioSystem::getOutputForAttr(attr, &io,
+                                            sessionId,
+                                            &streamType, client.clientUid,
+                                            &fullConfig,
+                                            (audio_output_flags_t)(AUDIO_OUTPUT_FLAG_MMAP_NOIRQ |
+                                                    AUDIO_OUTPUT_FLAG_DIRECT),
+                                            *deviceId, &portId);
+    } else {
+        ret = AudioSystem::getInputForAttr(attr, &io,
+                                              sessionId,
+                                              client.clientPid,
+                                              client.clientUid,
+                                              config,
+                                              AUDIO_INPUT_FLAG_MMAP_NOIRQ, *deviceId, &portId);
+    }
+    if (ret != NO_ERROR) {
+        return ret;
+    }
+
+    // at this stage, a MmapThread was created when openOutput() or openInput() was called by
+    // audio policy manager and we can retrieve it
+    sp<MmapThread> thread = mMmapThreads.valueFor(io);
+    if (thread != 0) {
+        interface = new MmapThreadHandle(thread);
+        thread->configure(attr, streamType, sessionId, callback, portId);
+    } else {
+        ret = NO_INIT;
+    }
+
+    ALOGV("%s done status %d portId %d", __FUNCTION__, ret, portId);
+
+    return ret;
+}
+
 static const char * const audio_interfaces[] = {
     AUDIO_HARDWARE_MODULE_ID_PRIMARY,
     AUDIO_HARDWARE_MODULE_ID_A2DP,
@@ -302,10 +343,12 @@
         // then try to find a module supporting the requested device.
         for (size_t i = 0; i < mAudioHwDevs.size(); i++) {
             AudioHwDevice *audioHwDevice = mAudioHwDevs.valueAt(i);
-            audio_hw_device_t *dev = audioHwDevice->hwDevice();
-            if ((dev->get_supported_devices != NULL) &&
-                    (dev->get_supported_devices(dev) & devices) == devices)
+            sp<DeviceHalInterface> dev = audioHwDevice->hwDevice();
+            uint32_t supportedDevices;
+            if (dev->getSupportedDevices(&supportedDevices) == OK &&
+                    (supportedDevices & devices) == devices) {
                 return audioHwDevice;
+            }
         }
     } else {
         // check a match for the requested module handle
@@ -419,7 +462,12 @@
             write(fd, result.string(), result.size());
         }
 
-        EffectDumpEffects(fd);
+        if (mEffectsFactoryHal != 0) {
+            mEffectsFactoryHal->dumpEffects(fd);
+        } else {
+            String8 result(kNoEffectsFactory);
+            write(fd, result.string(), result.size());
+        }
 
         dumpClients(fd, args);
         if (clientLocked) {
@@ -438,6 +486,11 @@
             mRecordThreads.valueAt(i)->dump(fd, args);
         }
 
+        // dump mmap threads
+        for (size_t i = 0; i < mMmapThreads.size(); i++) {
+            mMmapThreads.valueAt(i)->dump(fd, args);
+        }
+
         // dump orphan effect chains
         if (mOrphanEffectChains.size() != 0) {
             write(fd, "  Orphan Effect Chains\n", strlen("  Orphan Effect Chains\n"));
@@ -447,8 +500,8 @@
         }
         // dump all hardware devs
         for (size_t i = 0; i < mAudioHwDevs.size(); i++) {
-            audio_hw_device_t *dev = mAudioHwDevs.valueAt(i)->hwDevice();
-            dev->dump(dev, fd);
+            sp<DeviceHalInterface> dev = mAudioHwDevs.valueAt(i)->hwDevice();
+            dev->dump(fd);
         }
 
 #ifdef TEE_SINK
@@ -458,6 +511,8 @@
         }
 #endif
 
+        BUFLOG_RESET;
+
         if (locked) {
             mLock.unlock();
         }
@@ -551,8 +606,11 @@
         return new NBLog::Writer();
     }
 success:
+    NBLog::Shared *sharedRawPtr = (NBLog::Shared *) shared->pointer();
+    new((void *) sharedRawPtr) NBLog::Shared(); // placement new here, but the corresponding
+                                                // explicit destructor not needed since it is POD
     mediaLogService->registerWriter(shared, size, name);
-    return new NBLog::Writer(size, shared);
+    return new NBLog::Writer(shared, size);
 }
 
 void AudioFlinger::unregisterWriter(const sp<NBLog::Writer>& writer)
@@ -586,7 +644,8 @@
         pid_t tid,
         audio_session_t *sessionId,
         int clientUid,
-        status_t *status)
+        status_t *status,
+        audio_port_handle_t portId)
 {
     sp<PlaybackThread::Track> track;
     sp<TrackHandle> trackHandle;
@@ -679,7 +738,8 @@
         ALOGV("createTrack() lSessionId: %d", lSessionId);
 
         track = thread->createTrack_l(client, streamType, sampleRate, format,
-                channelMask, frameCount, sharedBuffer, lSessionId, flags, tid, clientUid, &lStatus);
+                channelMask, frameCount, sharedBuffer, lSessionId, flags, tid,
+                clientUid, &lStatus, portId);
         LOG_ALWAYS_FATAL_IF((lStatus == NO_ERROR) && (track == 0));
         // we don't abort yet if lStatus != NO_ERROR; there is still work to be done regardless
 
@@ -810,7 +870,7 @@
 
         mHardwareStatus = AUDIO_HW_SET_MASTER_VOLUME;
         if (dev->canSetMasterVolume()) {
-            dev->hwDevice()->set_master_volume(dev->hwDevice(), value);
+            dev->hwDevice()->setMasterVolume(value);
         }
         mHardwareStatus = AUDIO_HW_IDLE;
     }
@@ -847,9 +907,9 @@
 
     { // scope for the lock
         AutoMutex lock(mHardwareLock);
-        audio_hw_device_t *dev = mPrimaryHardwareDev->hwDevice();
+        sp<DeviceHalInterface> dev = mPrimaryHardwareDev->hwDevice();
         mHardwareStatus = AUDIO_HW_SET_MODE;
-        ret = dev->set_mode(dev, mode);
+        ret = dev->setMode(mode);
         mHardwareStatus = AUDIO_HW_IDLE;
     }
 
@@ -878,8 +938,8 @@
     AutoMutex lock(mHardwareLock);
     mHardwareStatus = AUDIO_HW_SET_MIC_MUTE;
     for (size_t i = 0; i < mAudioHwDevs.size(); i++) {
-        audio_hw_device_t *dev = mAudioHwDevs.valueAt(i)->hwDevice();
-        status_t result = dev->set_mic_mute(dev, state);
+        sp<DeviceHalInterface> dev = mAudioHwDevs.valueAt(i)->hwDevice();
+        status_t result = dev->setMicMute(state);
         if (result != NO_ERROR) {
             ret = result;
         }
@@ -899,8 +959,8 @@
     AutoMutex lock(mHardwareLock);
     mHardwareStatus = AUDIO_HW_GET_MIC_MUTE;
     for (size_t i = 0; i < mAudioHwDevs.size(); i++) {
-        audio_hw_device_t *dev = mAudioHwDevs.valueAt(i)->hwDevice();
-        status_t result = dev->get_mic_mute(dev, &state);
+        sp<DeviceHalInterface> dev = mAudioHwDevs.valueAt(i)->hwDevice();
+        status_t result = dev->getMicMute(&state);
         if (result == NO_ERROR) {
             mute = mute && state;
         }
@@ -932,7 +992,7 @@
 
         mHardwareStatus = AUDIO_HW_SET_MASTER_MUTE;
         if (dev->canSetMasterMute()) {
-            dev->hwDevice()->set_master_mute(dev->hwDevice(), muted);
+            dev->hwDevice()->setMasterMute(muted);
         }
         mHardwareStatus = AUDIO_HW_IDLE;
     }
@@ -941,11 +1001,9 @@
     // assigned to HALs which do not have master mute support will apply master
     // mute during the mix operation.  Threads with HALs which do support master
     // mute will simply ignore the setting.
-    for (size_t i = 0; i < mPlaybackThreads.size(); i++) {
-        if (mPlaybackThreads.valueAt(i)->isDuplicating()) {
-            continue;
-        }
-        mPlaybackThreads.valueAt(i)->setMasterMute(muted);
+    Vector<VolumeInterface *> volumeInterfaces = getAllVolumeInterfaces_l();
+    for (size_t i = 0; i < volumeInterfaces.size(); i++) {
+        volumeInterfaces[i]->setMasterMute(muted);
     }
 
     return NO_ERROR;
@@ -976,12 +1034,12 @@
 status_t AudioFlinger::checkStreamType(audio_stream_type_t stream) const
 {
     if (uint32_t(stream) >= AUDIO_STREAM_CNT) {
-        ALOGW("setStreamVolume() invalid stream %d", stream);
+        ALOGW("checkStreamType() invalid stream %d", stream);
         return BAD_VALUE;
     }
     pid_t caller = IPCThreadState::self()->getCallingPid();
     if (uint32_t(stream) >= AUDIO_STREAM_PUBLIC_CNT && caller != getpid_cached) {
-        ALOGW("setStreamVolume() pid %d cannot use internal stream type %d", caller, stream);
+        ALOGW("checkStreamType() pid %d cannot use internal stream type %d", caller, stream);
         return PERMISSION_DENIED;
     }
 
@@ -1003,22 +1061,22 @@
     ALOG_ASSERT(stream != AUDIO_STREAM_PATCH, "attempt to change AUDIO_STREAM_PATCH volume");
 
     AutoMutex lock(mLock);
-    PlaybackThread *thread = NULL;
+    Vector<VolumeInterface *> volumeInterfaces;
     if (output != AUDIO_IO_HANDLE_NONE) {
-        thread = checkPlaybackThread_l(output);
-        if (thread == NULL) {
+        VolumeInterface *volumeInterface = getVolumeInterface_l(output);
+        if (volumeInterface == NULL) {
             return BAD_VALUE;
         }
+        volumeInterfaces.add(volumeInterface);
     }
 
     mStreamTypes[stream].volume = value;
 
-    if (thread == NULL) {
-        for (size_t i = 0; i < mPlaybackThreads.size(); i++) {
-            mPlaybackThreads.valueAt(i)->setStreamVolume(stream, value);
-        }
-    } else {
-        thread->setStreamVolume(stream, value);
+    if (volumeInterfaces.size() == 0) {
+        volumeInterfaces = getAllVolumeInterfaces_l();
+    }
+    for (size_t i = 0; i < volumeInterfaces.size(); i++) {
+        volumeInterfaces[i]->setStreamVolume(stream, value);
     }
 
     return NO_ERROR;
@@ -1044,8 +1102,10 @@
 
     AutoMutex lock(mLock);
     mStreamTypes[stream].mute = muted;
-    for (size_t i = 0; i < mPlaybackThreads.size(); i++)
-        mPlaybackThreads.valueAt(i)->setStreamMute(stream, muted);
+    Vector<VolumeInterface *> volumeInterfaces = getAllVolumeInterfaces_l();
+    for (size_t i = 0; i < volumeInterfaces.size(); i++) {
+        volumeInterfaces[i]->setStreamMute(stream, muted);
+    }
 
     return NO_ERROR;
 }
@@ -1060,11 +1120,12 @@
     AutoMutex lock(mLock);
     float volume;
     if (output != AUDIO_IO_HANDLE_NONE) {
-        PlaybackThread *thread = checkPlaybackThread_l(output);
-        if (thread == NULL) {
-            return 0.0f;
+        VolumeInterface *volumeInterface = getVolumeInterface_l(output);
+        if (volumeInterface != NULL) {
+            volume = volumeInterface->streamVolume(stream);
+        } else {
+            volume = 0.0f;
         }
-        volume = thread->streamVolume(stream);
     } else {
         volume = streamVolume_l(stream);
     }
@@ -1110,8 +1171,8 @@
             AutoMutex lock(mHardwareLock);
             mHardwareStatus = AUDIO_HW_SET_PARAMETER;
             for (size_t i = 0; i < mAudioHwDevs.size(); i++) {
-                audio_hw_device_t *dev = mAudioHwDevs.valueAt(i)->hwDevice();
-                status_t result = dev->set_parameters(dev, keyValuePairs.string());
+                sp<DeviceHalInterface> dev = mAudioHwDevs.valueAt(i)->hwDevice();
+                status_t result = dev->setParameters(keyValuePairs);
                 // return success if at least one audio device accepts the parameters as not all
                 // HALs are requested to support all parameters. If no audio device supports the
                 // requested parameters, the last error is reported.
@@ -1124,8 +1185,8 @@
         // disable AEC and NS if the device is a BT SCO headset supporting those pre processings
         AudioParameter param = AudioParameter(keyValuePairs);
         String8 value;
-        if (param.get(String8(AUDIO_PARAMETER_KEY_BT_NREC), value) == NO_ERROR) {
-            bool btNrecIsOff = (value == AUDIO_PARAMETER_VALUE_OFF);
+        if (param.get(String8(AudioParameter::keyBtNrec), value) == NO_ERROR) {
+            bool btNrecIsOff = (value == AudioParameter::valueOff);
             if (mBtNrecIsOff != btNrecIsOff) {
                 for (size_t i = 0; i < mRecordThreads.size(); i++) {
                     sp<RecordThread> thread = mRecordThreads.valueAt(i);
@@ -1149,7 +1210,7 @@
         }
         String8 screenState;
         if (param.get(String8(AudioParameter::keyScreenState), screenState) == NO_ERROR) {
-            bool isOff = screenState == "off";
+            bool isOff = (screenState == AudioParameter::valueOff);
             if (isOff != (AudioFlinger::mScreenState & 1)) {
                 AudioFlinger::mScreenState = ((AudioFlinger::mScreenState & ~1) + 2) | isOff;
             }
@@ -1165,6 +1226,9 @@
         thread = checkPlaybackThread_l(ioHandle);
         if (thread == 0) {
             thread = checkRecordThread_l(ioHandle);
+            if (thread == 0) {
+                thread = checkMmapThread_l(ioHandle);
+            }
         } else if (thread == primaryPlaybackThread_l()) {
             // indicate output device change to all input threads for pre processing
             AudioParameter param = AudioParameter(keyValuePairs);
@@ -1192,29 +1256,31 @@
         String8 out_s8;
 
         for (size_t i = 0; i < mAudioHwDevs.size(); i++) {
-            char *s;
+            String8 s;
+            status_t result;
             {
             AutoMutex lock(mHardwareLock);
             mHardwareStatus = AUDIO_HW_GET_PARAMETER;
-            audio_hw_device_t *dev = mAudioHwDevs.valueAt(i)->hwDevice();
-            s = dev->get_parameters(dev, keys.string());
+            sp<DeviceHalInterface> dev = mAudioHwDevs.valueAt(i)->hwDevice();
+            result = dev->getParameters(keys, &s);
             mHardwareStatus = AUDIO_HW_IDLE;
             }
-            out_s8 += String8(s ? s : "");
-            free(s);
+            if (result == OK) out_s8 += s;
         }
         return out_s8;
     }
 
-    PlaybackThread *playbackThread = checkPlaybackThread_l(ioHandle);
-    if (playbackThread != NULL) {
-        return playbackThread->getParameters(keys);
+    ThreadBase *thread = (ThreadBase *)checkPlaybackThread_l(ioHandle);
+    if (thread == NULL) {
+        thread = (ThreadBase *)checkRecordThread_l(ioHandle);
+        if (thread == NULL) {
+            thread = (ThreadBase *)checkMmapThread_l(ioHandle);
+            if (thread == NULL) {
+                String8("");
+            }
+        }
     }
-    RecordThread *recordThread = checkRecordThread_l(ioHandle);
-    if (recordThread != NULL) {
-        return recordThread->getParameters(keys);
-    }
-    return String8("");
+    return thread->getParameters(keys);
 }
 
 size_t AudioFlinger::getInputBufferSize(uint32_t sampleRate, audio_format_t format,
@@ -1238,14 +1304,14 @@
     proposed.channel_mask = channelMask;
     proposed.format = format;
 
-    audio_hw_device_t *dev = mPrimaryHardwareDev->hwDevice();
+    sp<DeviceHalInterface> dev = mPrimaryHardwareDev->hwDevice();
     size_t frames;
     for (;;) {
         // Note: config is currently a const parameter for get_input_buffer_size()
         // but we use a copy from proposed in case config changes from the call.
         config = proposed;
-        frames = dev->get_input_buffer_size(dev, &config);
-        if (frames != 0) {
+        status_t result = dev->getInputBufferSize(&config, &frames);
+        if (result == OK && frames != 0) {
             break; // hal success, config is the result
         }
         // change one parameter of the configuration each iteration to a more "common" value
@@ -1292,9 +1358,9 @@
     }
 
     AutoMutex lock(mHardwareLock);
-    audio_hw_device_t *dev = mPrimaryHardwareDev->hwDevice();
+    sp<DeviceHalInterface> dev = mPrimaryHardwareDev->hwDevice();
     mHardwareStatus = AUDIO_HW_SET_VOICE_VOLUME;
-    ret = dev->set_voice_volume(dev, value);
+    ret = dev->setVoiceVolume(value);
     mHardwareStatus = AUDIO_HW_IDLE;
 
     return ret;
@@ -1466,6 +1532,41 @@
     mAudioFlinger->removeNotificationClient(mPid);
 }
 
+// ----------------------------------------------------------------------------
+AudioFlinger::MediaLogNotifier::MediaLogNotifier()
+    : mPendingRequests(false) {}
+
+
+void AudioFlinger::MediaLogNotifier::requestMerge() {
+    AutoMutex _l(mMutex);
+    mPendingRequests = true;
+    mCond.signal();
+}
+
+bool AudioFlinger::MediaLogNotifier::threadLoop() {
+    // Wait until there are pending requests
+    {
+        AutoMutex _l(mMutex);
+        mPendingRequests = false; // to ignore past requests
+        while (!mPendingRequests) {
+            mCond.wait(mMutex);
+            // TODO may also need an exitPending check
+        }
+        mPendingRequests = false;
+    }
+    // Execute the actual MediaLogService binder call and ignore extra requests for a while
+    sp<IBinder> binder = defaultServiceManager()->getService(String16("media.log"));
+    if (binder != 0) {
+        sp<IMediaLogService> mediaLogService(interface_cast<IMediaLogService>(binder));
+        mediaLogService->requestMergeWakeup();
+    }
+    usleep(kPostTriggerSleepPeriod);
+    return true;
+}
+
+void AudioFlinger::requestLogMerge() {
+    mMediaLogNotifier->requestMerge();
+}
 
 // ----------------------------------------------------------------------------
 
@@ -1484,7 +1585,8 @@
         size_t *notificationFrames,
         sp<IMemory>& cblk,
         sp<IMemory>& buffers,
-        status_t *status)
+        status_t *status,
+        audio_port_handle_t portId)
 {
     sp<RecordThread::RecordTrack> recordTrack;
     sp<RecordHandle> recordHandle;
@@ -1568,7 +1670,7 @@
 
         recordTrack = thread->createRecordTrack_l(client, sampleRate, format, channelMask,
                                                   frameCount, lSessionId, notificationFrames,
-                                                  clientUid, flags, tid, &lStatus);
+                                                  clientUid, flags, tid, &lStatus, portId);
         LOG_ALWAYS_FATAL_IF((lStatus == NO_ERROR) && (recordTrack == 0));
 
         if (lStatus == NO_ERROR) {
@@ -1632,16 +1734,16 @@
         }
     }
 
-    audio_hw_device_t *dev;
+    sp<DeviceHalInterface> dev;
 
-    int rc = load_audio_interface(name, &dev);
+    int rc = mDevicesFactoryHal->openDevice(name, &dev);
     if (rc) {
         ALOGE("loadHwModule() error %d loading module %s", rc, name);
         return AUDIO_MODULE_HANDLE_NONE;
     }
 
     mHardwareStatus = AUDIO_HW_INIT;
-    rc = dev->init_check(dev);
+    rc = dev->initCheck();
     mHardwareStatus = AUDIO_HW_IDLE;
     if (rc) {
         ALOGE("loadHwModule() init check error %d for module %s", rc, name);
@@ -1659,32 +1761,26 @@
 
         if (0 == mAudioHwDevs.size()) {
             mHardwareStatus = AUDIO_HW_GET_MASTER_VOLUME;
-            if (NULL != dev->get_master_volume) {
-                float mv;
-                if (OK == dev->get_master_volume(dev, &mv)) {
-                    mMasterVolume = mv;
-                }
+            float mv;
+            if (OK == dev->getMasterVolume(&mv)) {
+                mMasterVolume = mv;
             }
 
             mHardwareStatus = AUDIO_HW_GET_MASTER_MUTE;
-            if (NULL != dev->get_master_mute) {
-                bool mm;
-                if (OK == dev->get_master_mute(dev, &mm)) {
-                    mMasterMute = mm;
-                }
+            bool mm;
+            if (OK == dev->getMasterMute(&mm)) {
+                mMasterMute = mm;
             }
         }
 
         mHardwareStatus = AUDIO_HW_SET_MASTER_VOLUME;
-        if ((NULL != dev->set_master_volume) &&
-            (OK == dev->set_master_volume(dev, mMasterVolume))) {
+        if (OK == dev->setMasterVolume(mMasterVolume)) {
             flags = static_cast<AudioHwDevice::Flags>(flags |
                     AudioHwDevice::AHWD_CAN_SET_MASTER_VOLUME);
         }
 
         mHardwareStatus = AUDIO_HW_SET_MASTER_MUTE;
-        if ((NULL != dev->set_master_mute) &&
-            (OK == dev->set_master_mute(dev, mMasterMute))) {
+        if (OK == dev->setMasterMute(mMasterMute)) {
             flags = static_cast<AudioHwDevice::Flags>(flags |
                     AudioHwDevice::AHWD_CAN_SET_MASTER_MUTE);
         }
@@ -1695,8 +1791,7 @@
     audio_module_handle_t handle = (audio_module_handle_t) nextUniqueId(AUDIO_UNIQUE_ID_USE_MODULE);
     mAudioHwDevs.add(handle, new AudioHwDevice(handle, name, dev, flags));
 
-    ALOGI("loadHwModule() Loaded %s audio interface from %s (%s) handle %d",
-          name, dev->common.module->name, dev->common.module->id, handle);
+    ALOGI("loadHwModule() Loaded %s audio interface, handle %d", name, handle);
 
     return handle;
 
@@ -1746,16 +1841,18 @@
         return mHwAvSyncIds.valueAt(index);
     }
 
-    audio_hw_device_t *dev = mPrimaryHardwareDev->hwDevice();
+    sp<DeviceHalInterface> dev = mPrimaryHardwareDev->hwDevice();
     if (dev == NULL) {
         return AUDIO_HW_SYNC_INVALID;
     }
-    char *reply = dev->get_parameters(dev, AUDIO_PARAMETER_HW_AV_SYNC);
-    AudioParameter param = AudioParameter(String8(reply));
-    free(reply);
+    String8 reply;
+    AudioParameter param;
+    if (dev->getParameters(String8(AudioParameter::keyHwAvSync), &reply) == OK) {
+        param = AudioParameter(reply);
+    }
 
     int value;
-    if (param.getInt(String8(AUDIO_PARAMETER_HW_AV_SYNC), value) != NO_ERROR) {
+    if (param.getInt(String8(AudioParameter::keyHwAvSync), value) != NO_ERROR) {
         ALOGW("getAudioHwSyncForSession error getting sync for session %d", sessionId);
         return AUDIO_HW_SYNC_INVALID;
     }
@@ -1777,7 +1874,7 @@
         uint32_t sessions = thread->hasAudioSession(sessionId);
         if (sessions & ThreadBase::TRACK_SESSION) {
             AudioParameter param = AudioParameter();
-            param.addInt(String8(AUDIO_PARAMETER_STREAM_HW_AV_SYNC), value);
+            param.addInt(String8(AudioParameter::keyStreamHwAvSync), value);
             thread->setParameters(param.toString());
             break;
         }
@@ -1815,7 +1912,7 @@
         audio_hw_sync_t syncId = mHwAvSyncIds.valueAt(index);
         ALOGV("setAudioHwSyncForSession_l found ID %d for session %d", syncId, sessionId);
         AudioParameter param = AudioParameter();
-        param.addInt(String8(AUDIO_PARAMETER_STREAM_HW_AV_SYNC), syncId);
+        param.addInt(String8(AudioParameter::keyStreamHwAvSync), syncId);
         thread->setParameters(param.toString());
     }
 }
@@ -1824,7 +1921,7 @@
 // ----------------------------------------------------------------------------
 
 
-sp<AudioFlinger::PlaybackThread> AudioFlinger::openOutput_l(audio_module_handle_t module,
+sp<AudioFlinger::ThreadBase> AudioFlinger::openOutput_l(audio_module_handle_t module,
                                                             audio_io_handle_t *output,
                                                             audio_config_t *config,
                                                             audio_devices_t devices,
@@ -1880,22 +1977,34 @@
     mHardwareStatus = AUDIO_HW_IDLE;
 
     if (status == NO_ERROR) {
-
-        PlaybackThread *thread;
-        if (flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) {
-            thread = new OffloadThread(this, outputStream, *output, devices, mSystemReady);
-            ALOGV("openOutput_l() created offload output: ID %d thread %p", *output, thread);
-        } else if ((flags & AUDIO_OUTPUT_FLAG_DIRECT)
-                || !isValidPcmSinkFormat(config->format)
-                || !isValidPcmSinkChannelMask(config->channel_mask)) {
-            thread = new DirectOutputThread(this, outputStream, *output, devices, mSystemReady);
-            ALOGV("openOutput_l() created direct output: ID %d thread %p", *output, thread);
+        if (flags & AUDIO_OUTPUT_FLAG_MMAP_NOIRQ) {
+            sp<MmapPlaybackThread> thread =
+                    new MmapPlaybackThread(this, *output, outHwDev, outputStream,
+                                          devices, AUDIO_DEVICE_NONE, mSystemReady);
+            mMmapThreads.add(*output, thread);
+            ALOGV("openOutput_l() created mmap playback thread: ID %d thread %p",
+                  *output, thread.get());
+            return thread;
         } else {
-            thread = new MixerThread(this, outputStream, *output, devices, mSystemReady);
-            ALOGV("openOutput_l() created mixer output: ID %d thread %p", *output, thread);
+            sp<PlaybackThread> thread;
+            if (flags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) {
+                thread = new OffloadThread(this, outputStream, *output, devices, mSystemReady);
+                ALOGV("openOutput_l() created offload output: ID %d thread %p",
+                      *output, thread.get());
+            } else if ((flags & AUDIO_OUTPUT_FLAG_DIRECT)
+                    || !isValidPcmSinkFormat(config->format)
+                    || !isValidPcmSinkChannelMask(config->channel_mask)) {
+                thread = new DirectOutputThread(this, outputStream, *output, devices, mSystemReady);
+                ALOGV("openOutput_l() created direct output: ID %d thread %p",
+                      *output, thread.get());
+            } else {
+                thread = new MixerThread(this, outputStream, *output, devices, mSystemReady);
+                ALOGV("openOutput_l() created mixer output: ID %d thread %p",
+                      *output, thread.get());
+            }
+            mPlaybackThreads.add(*output, thread);
+            return thread;
         }
-        mPlaybackThreads.add(*output, thread);
-        return thread;
     }
 
     return 0;
@@ -1909,8 +2018,9 @@
                                   uint32_t *latencyMs,
                                   audio_output_flags_t flags)
 {
-    ALOGI("openOutput(), module %d Device %x, SamplingRate %d, Format %#08x, Channels %x, flags %x",
-              module,
+    ALOGI("openOutput() this %p, module %d Device %x, SamplingRate %d, Format %#08x, Channels %x, "
+              "flags %x",
+              this, module,
               (devices != NULL) ? *devices : 0,
               config->sample_rate,
               config->format,
@@ -1923,22 +2033,28 @@
 
     Mutex::Autolock _l(mLock);
 
-    sp<PlaybackThread> thread = openOutput_l(module, output, config, *devices, address, flags);
+    sp<ThreadBase> thread = openOutput_l(module, output, config, *devices, address, flags);
     if (thread != 0) {
-        *latencyMs = thread->latency();
+        if ((flags & AUDIO_OUTPUT_FLAG_MMAP_NOIRQ) == 0) {
+            PlaybackThread *playbackThread = (PlaybackThread *)thread.get();
+            *latencyMs = playbackThread->latency();
 
-        // notify client processes of the new output creation
-        thread->ioConfigChanged(AUDIO_OUTPUT_OPENED);
+            // notify client processes of the new output creation
+            playbackThread->ioConfigChanged(AUDIO_OUTPUT_OPENED);
 
-        // the first primary output opened designates the primary hw device
-        if ((mPrimaryHardwareDev == NULL) && (flags & AUDIO_OUTPUT_FLAG_PRIMARY)) {
-            ALOGI("Using module %d has the primary audio interface", module);
-            mPrimaryHardwareDev = thread->getOutput()->audioHwDev;
+            // the first primary output opened designates the primary hw device
+            if ((mPrimaryHardwareDev == NULL) && (flags & AUDIO_OUTPUT_FLAG_PRIMARY)) {
+                ALOGI("Using module %d has the primary audio interface", module);
+                mPrimaryHardwareDev = playbackThread->getOutput()->audioHwDev;
 
-            AutoMutex lock(mHardwareLock);
-            mHardwareStatus = AUDIO_HW_SET_MODE;
-            mPrimaryHardwareDev->hwDevice()->set_mode(mPrimaryHardwareDev->hwDevice(), mMode);
-            mHardwareStatus = AUDIO_HW_IDLE;
+                AutoMutex lock(mHardwareLock);
+                mHardwareStatus = AUDIO_HW_SET_MODE;
+                mPrimaryHardwareDev->hwDevice()->setMode(mMode);
+                mHardwareStatus = AUDIO_HW_IDLE;
+            }
+        } else {
+            MmapThread *mmapThread = (MmapThread *)thread.get();
+            mmapThread->ioConfigChanged(AUDIO_OUTPUT_OPENED);
         }
         return NO_ERROR;
     }
@@ -1977,54 +2093,68 @@
 {
     // keep strong reference on the playback thread so that
     // it is not destroyed while exit() is executed
-    sp<PlaybackThread> thread;
+    sp<PlaybackThread> playbackThread;
+    sp<MmapPlaybackThread> mmapThread;
     {
         Mutex::Autolock _l(mLock);
-        thread = checkPlaybackThread_l(output);
-        if (thread == NULL) {
-            return BAD_VALUE;
-        }
+        playbackThread = checkPlaybackThread_l(output);
+        if (playbackThread != NULL) {
+            ALOGV("closeOutput() %d", output);
 
-        ALOGV("closeOutput() %d", output);
-
-        if (thread->type() == ThreadBase::MIXER) {
-            for (size_t i = 0; i < mPlaybackThreads.size(); i++) {
-                if (mPlaybackThreads.valueAt(i)->isDuplicating()) {
-                    DuplicatingThread *dupThread =
-                            (DuplicatingThread *)mPlaybackThreads.valueAt(i).get();
-                    dupThread->removeOutputTrack((MixerThread *)thread.get());
+            if (playbackThread->type() == ThreadBase::MIXER) {
+                for (size_t i = 0; i < mPlaybackThreads.size(); i++) {
+                    if (mPlaybackThreads.valueAt(i)->isDuplicating()) {
+                        DuplicatingThread *dupThread =
+                                (DuplicatingThread *)mPlaybackThreads.valueAt(i).get();
+                        dupThread->removeOutputTrack((MixerThread *)playbackThread.get());
+                    }
                 }
             }
-        }
 
 
-        mPlaybackThreads.removeItem(output);
-        // save all effects to the default thread
-        if (mPlaybackThreads.size()) {
-            PlaybackThread *dstThread = checkPlaybackThread_l(mPlaybackThreads.keyAt(0));
-            if (dstThread != NULL) {
-                // audioflinger lock is held here so the acquisition order of thread locks does not
-                // matter
-                Mutex::Autolock _dl(dstThread->mLock);
-                Mutex::Autolock _sl(thread->mLock);
-                Vector< sp<EffectChain> > effectChains = thread->getEffectChains_l();
-                for (size_t i = 0; i < effectChains.size(); i ++) {
-                    moveEffectChain_l(effectChains[i]->sessionId(), thread.get(), dstThread, true);
+            mPlaybackThreads.removeItem(output);
+            // save all effects to the default thread
+            if (mPlaybackThreads.size()) {
+                PlaybackThread *dstThread = checkPlaybackThread_l(mPlaybackThreads.keyAt(0));
+                if (dstThread != NULL) {
+                    // audioflinger lock is held so order of thread lock acquisition doesn't matter
+                    Mutex::Autolock _dl(dstThread->mLock);
+                    Mutex::Autolock _sl(playbackThread->mLock);
+                    Vector< sp<EffectChain> > effectChains = playbackThread->getEffectChains_l();
+                    for (size_t i = 0; i < effectChains.size(); i ++) {
+                        moveEffectChain_l(effectChains[i]->sessionId(), playbackThread.get(),
+                                dstThread, true);
+                    }
                 }
             }
+        } else {
+            mmapThread = (MmapPlaybackThread *)checkMmapThread_l(output);
+            if (mmapThread == 0) {
+                return BAD_VALUE;
+            }
+            mMmapThreads.removeItem(output);
+            ALOGV("closing mmapThread %p", mmapThread.get());
         }
         const sp<AudioIoDescriptor> ioDesc = new AudioIoDescriptor();
         ioDesc->mIoHandle = output;
         ioConfigChanged(AUDIO_OUTPUT_CLOSED, ioDesc);
     }
-    thread->exit();
     // The thread entity (active unit of execution) is no longer running here,
     // but the ThreadBase container still exists.
 
-    if (!thread->isDuplicating()) {
-        closeOutputFinish(thread);
+    if (playbackThread != 0) {
+        playbackThread->exit();
+        if (!playbackThread->isDuplicating()) {
+            closeOutputFinish(playbackThread);
+        }
+    } else if (mmapThread != 0) {
+        ALOGV("mmapThread exit()");
+        mmapThread->exit();
+        AudioStreamOut *out = mmapThread->clearOutput();
+        ALOG_ASSERT(out != NULL, "out shouldn't be NULL");
+        // from now on thread->mOutput is NULL
+        delete out;
     }
-
     return NO_ERROR;
 }
 
@@ -2033,7 +2163,6 @@
     AudioStreamOut *out = thread->clearOutput();
     ALOG_ASSERT(out != NULL, "out shouldn't be NULL");
     // from now on thread->mOutput is NULL
-    out->hwDev()->close_output_stream(out->hwDev(), out->stream);
     delete out;
 }
 
@@ -2089,7 +2218,7 @@
         return BAD_VALUE;
     }
 
-    sp<RecordThread> thread = openInput_l(module, input, config, *devices, address, source, flags);
+    sp<ThreadBase> thread = openInput_l(module, input, config, *devices, address, source, flags);
 
     if (thread != 0) {
         // notify client processes of the new input creation
@@ -2099,7 +2228,7 @@
     return NO_INIT;
 }
 
-sp<AudioFlinger::RecordThread> AudioFlinger::openInput_l(audio_module_handle_t module,
+sp<AudioFlinger::ThreadBase> AudioFlinger::openInput_l(audio_module_handle_t module,
                                                          audio_io_handle_t *input,
                                                          audio_config_t *config,
                                                          audio_devices_t devices,
@@ -2128,13 +2257,14 @@
     }
 
     audio_config_t halconfig = *config;
-    audio_hw_device_t *inHwHal = inHwDev->hwDevice();
-    audio_stream_in_t *inStream = NULL;
-    status_t status = inHwHal->open_input_stream(inHwHal, *input, devices, &halconfig,
-                                        &inStream, flags, address.string(), source);
-    ALOGV("openInput_l() openInputStream returned input %p, SamplingRate %d"
+    sp<DeviceHalInterface> inHwHal = inHwDev->hwDevice();
+    sp<StreamInHalInterface> inStream;
+    status_t status = inHwHal->openInputStream(
+            *input, devices, &halconfig, flags, address.string(), source, &inStream);
+    ALOGV("openInput_l() openInputStream returned input %p, devices %x, SamplingRate %d"
            ", Format %#x, Channels %x, flags %#x, status %d addr %s",
-            inStream,
+            inStream.get(),
+            devices,
             halconfig.sample_rate,
             halconfig.format,
             halconfig.channel_mask,
@@ -2151,81 +2281,90 @@
         (audio_channel_count_from_in_mask(config->channel_mask) <= FCC_8)) {
         // FIXME describe the change proposed by HAL (save old values so we can log them here)
         ALOGV("openInput_l() reopening with proposed sampling rate and channel mask");
-        inStream = NULL;
-        status = inHwHal->open_input_stream(inHwHal, *input, devices, &halconfig,
-                                            &inStream, flags, address.string(), source);
+        inStream.clear();
+        status = inHwHal->openInputStream(
+                *input, devices, &halconfig, flags, address.string(), source, &inStream);
         // FIXME log this new status; HAL should not propose any further changes
     }
 
-    if (status == NO_ERROR && inStream != NULL) {
-
-#ifdef TEE_SINK
-        // Try to re-use most recently used Pipe to archive a copy of input for dumpsys,
-        // or (re-)create if current Pipe is idle and does not match the new format
-        sp<NBAIO_Sink> teeSink;
-        enum {
-            TEE_SINK_NO,    // don't copy input
-            TEE_SINK_NEW,   // copy input using a new pipe
-            TEE_SINK_OLD,   // copy input using an existing pipe
-        } kind;
-        NBAIO_Format format = Format_from_SR_C(halconfig.sample_rate,
-                audio_channel_count_from_in_mask(halconfig.channel_mask), halconfig.format);
-        if (!mTeeSinkInputEnabled) {
-            kind = TEE_SINK_NO;
-        } else if (!Format_isValid(format)) {
-            kind = TEE_SINK_NO;
-        } else if (mRecordTeeSink == 0) {
-            kind = TEE_SINK_NEW;
-        } else if (mRecordTeeSink->getStrongCount() != 1) {
-            kind = TEE_SINK_NO;
-        } else if (Format_isEqual(format, mRecordTeeSink->format())) {
-            kind = TEE_SINK_OLD;
-        } else {
-            kind = TEE_SINK_NEW;
-        }
-        switch (kind) {
-        case TEE_SINK_NEW: {
-            Pipe *pipe = new Pipe(mTeeSinkInputFrames, format);
-            size_t numCounterOffers = 0;
-            const NBAIO_Format offers[1] = {format};
-            ssize_t index = pipe->negotiate(offers, 1, NULL, numCounterOffers);
-            ALOG_ASSERT(index == 0);
-            PipeReader *pipeReader = new PipeReader(*pipe);
-            numCounterOffers = 0;
-            index = pipeReader->negotiate(offers, 1, NULL, numCounterOffers);
-            ALOG_ASSERT(index == 0);
-            mRecordTeeSink = pipe;
-            mRecordTeeSource = pipeReader;
-            teeSink = pipe;
-            }
-            break;
-        case TEE_SINK_OLD:
-            teeSink = mRecordTeeSink;
-            break;
-        case TEE_SINK_NO:
-        default:
-            break;
-        }
-#endif
-
+    if (status == NO_ERROR && inStream != 0) {
         AudioStreamIn *inputStream = new AudioStreamIn(inHwDev, inStream, flags);
-
-        // Start record thread
-        // RecordThread requires both input and output device indication to forward to audio
-        // pre processing modules
-        sp<RecordThread> thread = new RecordThread(this,
-                                  inputStream,
-                                  *input,
-                                  primaryOutputDevice_l(),
-                                  devices,
-                                  mSystemReady
+        if ((flags & AUDIO_INPUT_FLAG_MMAP_NOIRQ) != 0) {
+            sp<MmapCaptureThread> thread =
+                    new MmapCaptureThread(this, *input,
+                                          inHwDev, inputStream,
+                                          primaryOutputDevice_l(), devices, mSystemReady);
+            mMmapThreads.add(*input, thread);
+            ALOGV("openInput_l() created mmap capture thread: ID %d thread %p", *input,
+                    thread.get());
+            return thread;
+        } else {
 #ifdef TEE_SINK
-                                  , teeSink
+            // Try to re-use most recently used Pipe to archive a copy of input for dumpsys,
+            // or (re-)create if current Pipe is idle and does not match the new format
+            sp<NBAIO_Sink> teeSink;
+            enum {
+                TEE_SINK_NO,    // don't copy input
+                TEE_SINK_NEW,   // copy input using a new pipe
+                TEE_SINK_OLD,   // copy input using an existing pipe
+            } kind;
+            NBAIO_Format format = Format_from_SR_C(halconfig.sample_rate,
+                    audio_channel_count_from_in_mask(halconfig.channel_mask), halconfig.format);
+            if (!mTeeSinkInputEnabled) {
+                kind = TEE_SINK_NO;
+            } else if (!Format_isValid(format)) {
+                kind = TEE_SINK_NO;
+            } else if (mRecordTeeSink == 0) {
+                kind = TEE_SINK_NEW;
+            } else if (mRecordTeeSink->getStrongCount() != 1) {
+                kind = TEE_SINK_NO;
+            } else if (Format_isEqual(format, mRecordTeeSink->format())) {
+                kind = TEE_SINK_OLD;
+            } else {
+                kind = TEE_SINK_NEW;
+            }
+            switch (kind) {
+            case TEE_SINK_NEW: {
+                Pipe *pipe = new Pipe(mTeeSinkInputFrames, format);
+                size_t numCounterOffers = 0;
+                const NBAIO_Format offers[1] = {format};
+                ssize_t index = pipe->negotiate(offers, 1, NULL, numCounterOffers);
+                ALOG_ASSERT(index == 0);
+                PipeReader *pipeReader = new PipeReader(*pipe);
+                numCounterOffers = 0;
+                index = pipeReader->negotiate(offers, 1, NULL, numCounterOffers);
+                ALOG_ASSERT(index == 0);
+                mRecordTeeSink = pipe;
+                mRecordTeeSource = pipeReader;
+                teeSink = pipe;
+                }
+                break;
+            case TEE_SINK_OLD:
+                teeSink = mRecordTeeSink;
+                break;
+            case TEE_SINK_NO:
+            default:
+                break;
+            }
 #endif
-                                  );
-        mRecordThreads.add(*input, thread);
-        ALOGV("openInput_l() created record thread: ID %d thread %p", *input, thread.get());
-        return thread;
+
+            // Start record thread
+            // RecordThread requires both input and output device indication to forward to audio
+            // pre processing modules
+            sp<RecordThread> thread = new RecordThread(this,
+                                      inputStream,
+                                      *input,
+                                      primaryOutputDevice_l(),
+                                      devices,
+                                      mSystemReady
+#ifdef TEE_SINK
+                                      , teeSink
+#endif
+                                      );
+            mRecordThreads.add(*input, thread);
+            ALOGV("openInput_l() created record thread: ID %d thread %p", *input, thread.get());
+            return thread;
+        }
     }
 
     *input = AUDIO_IO_HANDLE_NONE;
@@ -2241,60 +2380,73 @@
 {
     // keep strong reference on the record thread so that
     // it is not destroyed while exit() is executed
-    sp<RecordThread> thread;
+    sp<RecordThread> recordThread;
+    sp<MmapCaptureThread> mmapThread;
     {
         Mutex::Autolock _l(mLock);
-        thread = checkRecordThread_l(input);
-        if (thread == 0) {
-            return BAD_VALUE;
-        }
+        recordThread = checkRecordThread_l(input);
+        if (recordThread != 0) {
+            ALOGV("closeInput() %d", input);
 
-        ALOGV("closeInput() %d", input);
-
-        // If we still have effect chains, it means that a client still holds a handle
-        // on at least one effect. We must either move the chain to an existing thread with the
-        // same session ID or put it aside in case a new record thread is opened for a
-        // new capture on the same session
-        sp<EffectChain> chain;
-        {
-            Mutex::Autolock _sl(thread->mLock);
-            Vector< sp<EffectChain> > effectChains = thread->getEffectChains_l();
-            // Note: maximum one chain per record thread
-            if (effectChains.size() != 0) {
-                chain = effectChains[0];
-            }
-        }
-        if (chain != 0) {
-            // first check if a record thread is already opened with a client on the same session.
-            // This should only happen in case of overlap between one thread tear down and the
-            // creation of its replacement
-            size_t i;
-            for (i = 0; i < mRecordThreads.size(); i++) {
-                sp<RecordThread> t = mRecordThreads.valueAt(i);
-                if (t == thread) {
-                    continue;
-                }
-                if (t->hasAudioSession(chain->sessionId()) != 0) {
-                    Mutex::Autolock _l(t->mLock);
-                    ALOGV("closeInput() found thread %d for effect session %d",
-                          t->id(), chain->sessionId());
-                    t->addEffectChain_l(chain);
-                    break;
+            // If we still have effect chains, it means that a client still holds a handle
+            // on at least one effect. We must either move the chain to an existing thread with the
+            // same session ID or put it aside in case a new record thread is opened for a
+            // new capture on the same session
+            sp<EffectChain> chain;
+            {
+                Mutex::Autolock _sl(recordThread->mLock);
+                Vector< sp<EffectChain> > effectChains = recordThread->getEffectChains_l();
+                // Note: maximum one chain per record thread
+                if (effectChains.size() != 0) {
+                    chain = effectChains[0];
                 }
             }
-            // put the chain aside if we could not find a record thread with the same session id.
-            if (i == mRecordThreads.size()) {
-                putOrphanEffectChain_l(chain);
+            if (chain != 0) {
+                // first check if a record thread is already opened with a client on same session.
+                // This should only happen in case of overlap between one thread tear down and the
+                // creation of its replacement
+                size_t i;
+                for (i = 0; i < mRecordThreads.size(); i++) {
+                    sp<RecordThread> t = mRecordThreads.valueAt(i);
+                    if (t == recordThread) {
+                        continue;
+                    }
+                    if (t->hasAudioSession(chain->sessionId()) != 0) {
+                        Mutex::Autolock _l(t->mLock);
+                        ALOGV("closeInput() found thread %d for effect session %d",
+                              t->id(), chain->sessionId());
+                        t->addEffectChain_l(chain);
+                        break;
+                    }
+                }
+                // put the chain aside if we could not find a record thread with the same session id
+                if (i == mRecordThreads.size()) {
+                    putOrphanEffectChain_l(chain);
+                }
             }
+            mRecordThreads.removeItem(input);
+        } else {
+            mmapThread = (MmapCaptureThread *)checkMmapThread_l(input);
+            if (mmapThread == 0) {
+                return BAD_VALUE;
+            }
+            mMmapThreads.removeItem(input);
         }
         const sp<AudioIoDescriptor> ioDesc = new AudioIoDescriptor();
         ioDesc->mIoHandle = input;
         ioConfigChanged(AUDIO_INPUT_CLOSED, ioDesc);
-        mRecordThreads.removeItem(input);
     }
     // FIXME: calling thread->exit() without mLock held should not be needed anymore now that
     // we have a different lock for notification client
-    closeInputFinish(thread);
+    if (recordThread != 0) {
+        closeInputFinish(recordThread);
+    } else if (mmapThread != 0) {
+        mmapThread->exit();
+        AudioStreamIn *in = mmapThread->clearInput();
+        ALOG_ASSERT(in != NULL, "in shouldn't be NULL");
+        // from now on thread->mInput is NULL
+        delete in;
+    }
     return NO_ERROR;
 }
 
@@ -2304,7 +2456,6 @@
     AudioStreamIn *in = thread->clearInput();
     ALOG_ASSERT(in != NULL, "in shouldn't be NULL");
     // from now on thread->mInput is NULL
-    in->hwDev()->close_input_stream(in->hwDev(), in->stream);
     delete in;
 }
 
@@ -2323,7 +2474,9 @@
         PlaybackThread *thread = mPlaybackThreads.valueAt(i).get();
         thread->invalidateTracks(stream);
     }
-
+    for (size_t i = 0; i < mMmapThreads.size(); i++) {
+        mMmapThreads[i]->invalidateTracks(stream);
+    }
     return NO_ERROR;
 }
 
@@ -2473,16 +2626,18 @@
 // checkThread_l() must be called with AudioFlinger::mLock held
 AudioFlinger::ThreadBase *AudioFlinger::checkThread_l(audio_io_handle_t ioHandle) const
 {
-    ThreadBase *thread = NULL;
-    switch (audio_unique_id_get_use(ioHandle)) {
-    case AUDIO_UNIQUE_ID_USE_OUTPUT:
-        thread = checkPlaybackThread_l(ioHandle);
-        break;
-    case AUDIO_UNIQUE_ID_USE_INPUT:
-        thread = checkRecordThread_l(ioHandle);
-        break;
-    default:
-        break;
+    ThreadBase *thread = checkMmapThread_l(ioHandle);
+    if (thread == 0) {
+        switch (audio_unique_id_get_use(ioHandle)) {
+        case AUDIO_UNIQUE_ID_USE_OUTPUT:
+            thread = checkPlaybackThread_l(ioHandle);
+            break;
+        case AUDIO_UNIQUE_ID_USE_INPUT:
+            thread = checkRecordThread_l(ioHandle);
+            break;
+        default:
+            break;
+        }
     }
     return thread;
 }
@@ -2506,6 +2661,42 @@
     return mRecordThreads.valueFor(input).get();
 }
 
+// checkMmapThread_l() must be called with AudioFlinger::mLock held
+AudioFlinger::MmapThread *AudioFlinger::checkMmapThread_l(audio_io_handle_t io) const
+{
+    return mMmapThreads.valueFor(io).get();
+}
+
+
+// checkPlaybackThread_l() must be called with AudioFlinger::mLock held
+AudioFlinger::VolumeInterface *AudioFlinger::getVolumeInterface_l(audio_io_handle_t output) const
+{
+    VolumeInterface *volumeInterface = (VolumeInterface *)mPlaybackThreads.valueFor(output).get();
+    if (volumeInterface == nullptr) {
+        MmapThread *mmapThread = mMmapThreads.valueFor(output).get();
+        if (mmapThread != nullptr) {
+            if (mmapThread->isOutput()) {
+                volumeInterface = (VolumeInterface *)mmapThread;
+            }
+        }
+    }
+    return volumeInterface;
+}
+
+Vector <AudioFlinger::VolumeInterface *> AudioFlinger::getAllVolumeInterfaces_l() const
+{
+    Vector <VolumeInterface *> volumeInterfaces;
+    for (size_t i = 0; i < mPlaybackThreads.size(); i++) {
+        volumeInterfaces.add((VolumeInterface *)mPlaybackThreads.valueAt(i).get());
+    }
+    for (size_t i = 0; i < mMmapThreads.size(); i++) {
+        if (mMmapThreads.valueAt(i)->isOutput()) {
+            volumeInterfaces.add((VolumeInterface *)mMmapThreads.valueAt(i).get());
+        }
+    }
+    return volumeInterfaces;
+}
+
 audio_unique_id_t AudioFlinger::nextUniqueId(audio_unique_id_use_t use)
 {
     // This is the internal API, so it is OK to assert on bad parameter.
@@ -2608,24 +2799,39 @@
 //  Effect management
 // ----------------------------------------------------------------------------
 
+sp<EffectsFactoryHalInterface> AudioFlinger::getEffectsFactory() {
+    return mEffectsFactoryHal;
+}
 
 status_t AudioFlinger::queryNumberEffects(uint32_t *numEffects) const
 {
     Mutex::Autolock _l(mLock);
-    return EffectQueryNumberEffects(numEffects);
+    if (mEffectsFactoryHal.get()) {
+        return mEffectsFactoryHal->queryNumberEffects(numEffects);
+    } else {
+        return -ENODEV;
+    }
 }
 
 status_t AudioFlinger::queryEffect(uint32_t index, effect_descriptor_t *descriptor) const
 {
     Mutex::Autolock _l(mLock);
-    return EffectQueryEffect(index, descriptor);
+    if (mEffectsFactoryHal.get()) {
+        return mEffectsFactoryHal->getDescriptor(index, descriptor);
+    } else {
+        return -ENODEV;
+    }
 }
 
 status_t AudioFlinger::getEffectDescriptor(const effect_uuid_t *pUuid,
         effect_descriptor_t *descriptor) const
 {
     Mutex::Autolock _l(mLock);
-    return EffectGetDescriptor(pUuid, descriptor);
+    if (mEffectsFactoryHal.get()) {
+        return mEffectsFactoryHal->getDescriptor(pUuid, descriptor);
+    } else {
+        return -ENODEV;
+    }
 }
 
 
@@ -2636,6 +2842,7 @@
         audio_io_handle_t io,
         audio_session_t sessionId,
         const String16& opPackageName,
+        pid_t pid,
         status_t *status,
         int *id,
         int *enabled)
@@ -2644,9 +2851,17 @@
     sp<EffectHandle> handle;
     effect_descriptor_t desc;
 
-    pid_t pid = IPCThreadState::self()->getCallingPid();
-    ALOGV("createEffect pid %d, effectClient %p, priority %d, sessionId %d, io %d",
-            pid, effectClient.get(), priority, sessionId, io);
+    const uid_t callingUid = IPCThreadState::self()->getCallingUid();
+    if (pid == -1 || !isTrustedCallingUid(callingUid)) {
+        const pid_t callingPid = IPCThreadState::self()->getCallingPid();
+        ALOGW_IF(pid != -1 && pid != callingPid,
+                 "%s uid %d pid %d tried to pass itself off as pid %d",
+                 __func__, callingUid, callingPid, pid);
+        pid = callingPid;
+    }
+
+    ALOGV("createEffect pid %d, effectClient %p, priority %d, sessionId %d, io %d, factory %p",
+            pid, effectClient.get(), priority, sessionId, io, mEffectsFactoryHal.get());
 
     if (pDesc == NULL) {
         lStatus = BAD_VALUE;
@@ -2666,10 +2881,15 @@
         goto Exit;
     }
 
+    if (mEffectsFactoryHal == 0) {
+        lStatus = NO_INIT;
+        goto Exit;
+    }
+
     {
-        if (!EffectIsNullUuid(&pDesc->uuid)) {
+        if (!EffectsFactoryHalInterface::isNullUuid(&pDesc->uuid)) {
             // if uuid is specified, request effect descriptor
-            lStatus = EffectGetDescriptor(&pDesc->uuid, &desc);
+            lStatus = mEffectsFactoryHal->getDescriptor(&pDesc->uuid, &desc);
             if (lStatus < 0) {
                 ALOGW("createEffect() error %d from EffectGetDescriptor", lStatus);
                 goto Exit;
@@ -2677,7 +2897,7 @@
         } else {
             // if uuid is not specified, look for an available implementation
             // of the required type in effect factory
-            if (EffectIsNullUuid(&pDesc->type)) {
+            if (EffectsFactoryHalInterface::isNullUuid(&pDesc->type)) {
                 ALOGW("createEffect() no effect type");
                 lStatus = BAD_VALUE;
                 goto Exit;
@@ -2687,13 +2907,13 @@
             d.flags = 0; // prevent compiler warning
             bool found = false;
 
-            lStatus = EffectQueryNumberEffects(&numEffects);
+            lStatus = mEffectsFactoryHal->queryNumberEffects(&numEffects);
             if (lStatus < 0) {
                 ALOGW("createEffect() error %d from EffectQueryNumberEffects", lStatus);
                 goto Exit;
             }
             for (uint32_t i = 0; i < numEffects; i++) {
-                lStatus = EffectQueryEffect(i, &desc);
+                lStatus = mEffectsFactoryHal->getDescriptor(i, &desc);
                 if (lStatus < 0) {
                     ALOGW("createEffect() error %d from EffectQueryEffect", lStatus);
                     continue;
@@ -2768,7 +2988,7 @@
                     break;
                 }
             }
-            if (io == 0) {
+            if (io == AUDIO_IO_HANDLE_NONE) {
                 for (size_t i = 0; i < mRecordThreads.size(); i++) {
                     if (mRecordThreads.valueAt(i)->hasAudioSession(sessionId) != 0) {
                         io = mRecordThreads.keyAt(i);
@@ -2776,6 +2996,14 @@
                     }
                 }
             }
+            if (io == AUDIO_IO_HANDLE_NONE) {
+                for (size_t i = 0; i < mMmapThreads.size(); i++) {
+                    if (mMmapThreads.valueAt(i)->hasAudioSession(sessionId) != 0) {
+                        io = mMmapThreads.keyAt(i);
+                        break;
+                    }
+                }
+            }
             // If no output thread contains the requested session ID, default to
             // first output. The effect chain will be moved to the correct output
             // thread when a track with the same session ID is created
@@ -2788,9 +3016,12 @@
         if (thread == NULL) {
             thread = checkPlaybackThread_l(io);
             if (thread == NULL) {
-                ALOGE("createEffect() unknown output thread");
-                lStatus = BAD_VALUE;
-                goto Exit;
+                thread = checkMmapThread_l(io);
+                if (thread == NULL) {
+                    ALOGE("createEffect() unknown output thread");
+                    lStatus = BAD_VALUE;
+                    goto Exit;
+                }
             }
         } else {
             // Check if one effect chain was awaiting for an effect to be created on this
diff --git a/services/audioflinger/AudioFlinger.h b/services/audioflinger/AudioFlinger.h
index 8f5a7cd..fca840b 100644
--- a/services/audioflinger/AudioFlinger.h
+++ b/services/audioflinger/AudioFlinger.h
@@ -19,11 +19,14 @@
 #define ANDROID_AUDIO_FLINGER_H
 
 #include "Configuration.h"
+#include <deque>
+#include <map>
 #include <stdint.h>
 #include <sys/types.h>
 #include <limits.h>
 
 #include <cutils/compiler.h>
+#include <cutils/properties.h>
 
 #include <media/IAudioFlinger.h>
 #include <media/IAudioFlingerClient.h>
@@ -31,6 +34,8 @@
 #include <media/IAudioRecord.h>
 #include <media/AudioSystem.h>
 #include <media/AudioTrack.h>
+#include <media/MmapStreamInterface.h>
+#include <media/MmapStreamCallback.h>
 
 #include <utils/Atomic.h>
 #include <utils/Errors.h>
@@ -43,21 +48,23 @@
 #include <binder/MemoryDealer.h>
 
 #include <system/audio.h>
-#include <hardware/audio.h>
-#include <hardware/audio_policy.h>
+#include <system/audio_policy.h>
 
+#include <media/audiohal/EffectBufferHalInterface.h>
+#include <media/audiohal/StreamHalInterface.h>
 #include <media/AudioBufferProvider.h>
+#include <media/AudioMixer.h>
 #include <media/ExtendedAudioBufferProvider.h>
+#include <media/LinearMap.h>
+#include <media/VolumeShaper.h>
 
 #include "FastCapture.h"
 #include "FastMixer.h"
 #include <media/nbaio/NBAIO.h>
 #include "AudioWatchdog.h"
-#include "AudioMixer.h"
 #include "AudioStreamOut.h"
 #include "SpdifStreamOut.h"
 #include "AudioHwDevice.h"
-#include "LinearMap.h"
 
 #include <powermanager/IPowerManager.h>
 
@@ -71,8 +78,12 @@
 class AudioMixer;
 class AudioBuffer;
 class AudioResampler;
+class DeviceHalInterface;
+class DevicesFactoryHalInterface;
+class EffectsFactoryHalInterface;
 class FastMixer;
 class PassthruBufferProvider;
+class RecordBufferConverter;
 class ServerProxy;
 
 // ----------------------------------------------------------------------------
@@ -92,6 +103,7 @@
     public BnAudioFlinger
 {
     friend class BinderService<AudioFlinger>;   // for AudioFlinger()
+
 public:
     static const char* getServiceName() ANDROID_API { return "media.audio_flinger"; }
 
@@ -111,7 +123,8 @@
                                 pid_t tid,
                                 audio_session_t *sessionId,
                                 int clientUid,
-                                status_t *status /*non-NULL*/);
+                                status_t *status /*non-NULL*/,
+                                audio_port_handle_t portId);
 
     virtual sp<IAudioRecord> openRecord(
                                 audio_io_handle_t input,
@@ -128,7 +141,8 @@
                                 size_t *notificationFrames,
                                 sp<IMemory>& cblk,
                                 sp<IMemory>& buffers,
-                                status_t *status /*non-NULL*/);
+                                status_t *status /*non-NULL*/,
+                                audio_port_handle_t portId);
 
     virtual     uint32_t    sampleRate(audio_io_handle_t ioHandle) const;
     virtual     audio_format_t format(audio_io_handle_t output) const;
@@ -220,6 +234,7 @@
                         audio_io_handle_t io,
                         audio_session_t sessionId,
                         const String16& opPackageName,
+                        pid_t pid,
                         status_t *status /*non-NULL*/,
                         int *id,
                         int *enabled);
@@ -271,6 +286,15 @@
 
     sp<NBLog::Writer>   newWriter_l(size_t size, const char *name);
     void                unregisterWriter(const sp<NBLog::Writer>& writer);
+    sp<EffectsFactoryHalInterface> getEffectsFactory();
+
+    status_t openMmapStream(MmapStreamInterface::stream_direction_t direction,
+                            const audio_attributes_t *attr,
+                            audio_config_base_t *config,
+                            const MmapStreamInterface::Client& client,
+                            audio_port_handle_t *deviceId,
+                            const sp<MmapStreamCallback>& callback,
+                            sp<MmapStreamInterface>& interface);
 private:
     static const size_t kLogMemorySize = 40 * 1024;
     sp<MemoryDealer>    mLogMemoryDealer;   // == 0 when NBLog is disabled
@@ -278,6 +302,7 @@
     // for as long as possible.  The memory is only freed when it is needed for another log writer.
     Vector< sp<NBLog::Writer> > mUnregisteredWriters;
     Mutex               mUnregisteredWritersLock;
+
 public:
 
     class SyncEvent;
@@ -447,6 +472,38 @@
         const sp<IAudioFlingerClient> mAudioFlingerClient;
     };
 
+    // --- MediaLogNotifier ---
+    // Thread in charge of notifying MediaLogService to start merging.
+    // Receives requests from AudioFlinger's binder activity. It is used to reduce the amount of
+    // binder calls to MediaLogService in case of bursts of AudioFlinger binder calls.
+    class MediaLogNotifier : public Thread {
+    public:
+        MediaLogNotifier();
+
+        // Requests a MediaLogService notification. It's ignored if there has recently been another
+        void requestMerge();
+    private:
+        // Every iteration blocks waiting for a request, then interacts with MediaLogService to
+        // start merging.
+        // As every MediaLogService binder call is expensive, once it gets a request it ignores the
+        // following ones for a period of time.
+        virtual bool threadLoop() override;
+
+        bool mPendingRequests;
+
+        // Mutex and condition variable around mPendingRequests' value
+        Mutex       mMutex;
+        Condition   mCond;
+
+        // Duration of the sleep period after a processed request
+        static const int kPostTriggerSleepPeriod = 1000000;
+    };
+
+    const sp<MediaLogNotifier> mMediaLogNotifier;
+
+    // This is a helper that is called during incoming binder calls.
+    void requestLogMerge();
+
     class TrackHandle;
     class RecordHandle;
     class RecordThread;
@@ -494,6 +551,10 @@
         virtual void        pause();
         virtual status_t    attachAuxEffect(int effectId);
         virtual status_t    setParameters(const String8& keyValuePairs);
+        virtual VolumeShaper::Status applyVolumeShaper(
+                const sp<VolumeShaper::Configuration>& configuration,
+                const sp<VolumeShaper::Operation>& operation) override;
+        virtual sp<VolumeShaper::State> getVolumeShaperState(int id) override;
         virtual status_t    getTimestamp(AudioTimestamp& timestamp);
         virtual void        signal(); // signal playback thread for a change in control block
 
@@ -521,19 +582,42 @@
         void                stop_nonvirtual();
     };
 
+    // Mmap stream control interface implementation. Each MmapThreadHandle controls one
+    // MmapPlaybackThread or MmapCaptureThread instance.
+    class MmapThreadHandle : public MmapStreamInterface {
+    public:
+        explicit            MmapThreadHandle(const sp<MmapThread>& thread);
+        virtual             ~MmapThreadHandle();
+
+        // MmapStreamInterface virtuals
+        virtual status_t createMmapBuffer(int32_t minSizeFrames,
+                                          struct audio_mmap_buffer_info *info);
+        virtual status_t getMmapPosition(struct audio_mmap_position *position);
+        virtual status_t start(const MmapStreamInterface::Client& client,
+                                         audio_port_handle_t *handle);
+        virtual status_t stop(audio_port_handle_t handle);
+        virtual status_t standby();
+
+    private:
+        sp<MmapThread> mThread;
+    };
 
               ThreadBase *checkThread_l(audio_io_handle_t ioHandle) const;
               PlaybackThread *checkPlaybackThread_l(audio_io_handle_t output) const;
               MixerThread *checkMixerThread_l(audio_io_handle_t output) const;
               RecordThread *checkRecordThread_l(audio_io_handle_t input) const;
-              sp<RecordThread> openInput_l(audio_module_handle_t module,
+              MmapThread *checkMmapThread_l(audio_io_handle_t io) const;
+              VolumeInterface *getVolumeInterface_l(audio_io_handle_t output) const;
+              Vector <VolumeInterface *> getAllVolumeInterfaces_l() const;
+
+              sp<ThreadBase> openInput_l(audio_module_handle_t module,
                                            audio_io_handle_t *input,
                                            audio_config_t *config,
                                            audio_devices_t device,
                                            const String8& address,
                                            audio_source_t source,
                                            audio_input_flags_t flags);
-              sp<PlaybackThread> openOutput_l(audio_module_handle_t module,
+              sp<ThreadBase> openOutput_l(audio_module_handle_t module,
                                               audio_io_handle_t *output,
                                               audio_config_t *config,
                                               audio_devices_t devices,
@@ -612,12 +696,12 @@
 
     struct AudioStreamIn {
         AudioHwDevice* const audioHwDev;
-        audio_stream_in_t* const stream;
+        sp<StreamInHalInterface> stream;
         audio_input_flags_t flags;
 
-        audio_hw_device_t* hwDev() const { return audioHwDev->hwDevice(); }
+        sp<DeviceHalInterface> hwDev() const { return audioHwDev->hwDevice(); }
 
-        AudioStreamIn(AudioHwDevice *dev, audio_stream_in_t *in, audio_input_flags_t flags) :
+        AudioStreamIn(AudioHwDevice *dev, sp<StreamInHalInterface> in, audio_input_flags_t flags) :
             audioHwDev(dev), stream(in), flags(flags) {}
     };
 
@@ -646,6 +730,8 @@
                 AudioHwDevice*                      mPrimaryHardwareDev; // mAudioHwDevs[0] or NULL
                 DefaultKeyedVector<audio_module_handle_t, AudioHwDevice*>  mAudioHwDevs;
 
+                sp<DevicesFactoryHalInterface> mDevicesFactoryHal;
+
     // for dump, indicates which hardware operation is currently in progress (but not stream ops)
     enum hardware_call_state {
         AUDIO_HW_IDLE = 0,              // no operation in progress
@@ -708,6 +794,12 @@
 
                 // list of sessions for which a valid HW A/V sync ID was retrieved from the HAL
                 DefaultKeyedVector< audio_session_t , audio_hw_sync_t >mHwAvSyncIds;
+
+                // list of MMAP stream control threads. Those threads allow for wake lock, routing
+                // and volume control for activity on the associated MMAP stream at the HAL.
+                // Audio data transfer is directly handled by the client creating the MMAP stream
+                DefaultKeyedVector< audio_io_handle_t, sp<MmapThread> >  mMmapThreads;
+
 private:
     sp<Client>  registerPid(pid_t pid);    // always returns non-0
 
@@ -761,16 +853,17 @@
     nsecs_t mGlobalEffectEnableTime;  // when a global effect was last enabled
 
     sp<PatchPanel> mPatchPanel;
+    sp<EffectsFactoryHalInterface> mEffectsFactoryHal;
 
     bool        mSystemReady;
 };
 
 #undef INCLUDING_FROM_AUDIOFLINGER_H
 
-const char *formatToString(audio_format_t format);
-String8 inputFlagsToString(audio_input_flags_t flags);
-String8 outputFlagsToString(audio_output_flags_t flags);
-String8 devicesToString(audio_devices_t devices);
+std::string formatToString(audio_format_t format);
+std::string inputFlagsToString(audio_input_flags_t flags);
+std::string outputFlagsToString(audio_output_flags_t flags);
+std::string devicesToString(audio_devices_t devices);
 const char *sourceToString(audio_source_t source);
 
 // ----------------------------------------------------------------------------
diff --git a/services/audioflinger/AudioHwDevice.cpp b/services/audioflinger/AudioHwDevice.cpp
index 7494930..b109d06 100644
--- a/services/audioflinger/AudioHwDevice.cpp
+++ b/services/audioflinger/AudioHwDevice.cpp
@@ -18,7 +18,7 @@
 #define LOG_TAG "AudioHwDevice"
 //#define LOG_NDEBUG 0
 
-#include <hardware/audio.h>
+#include <system/audio.h>
 #include <utils/Log.h>
 
 #include <audio_utils/spdif/SPDIFEncoder.h>
@@ -93,5 +93,10 @@
     return status;
 }
 
+bool AudioHwDevice::supportsAudioPatches() const {
+    bool result;
+    return mHwDevice->supportsAudioPatches(&result) == OK ? result : false;
+}
+
 
 }; // namespace android
diff --git a/services/audioflinger/AudioHwDevice.h b/services/audioflinger/AudioHwDevice.h
index b9f65c1..eb826c6 100644
--- a/services/audioflinger/AudioHwDevice.h
+++ b/services/audioflinger/AudioHwDevice.h
@@ -22,11 +22,10 @@
 #include <stdlib.h>
 #include <sys/types.h>
 
-#include <hardware/audio.h>
+#include <media/audiohal/DeviceHalInterface.h>
 #include <utils/Errors.h>
 #include <system/audio.h>
 
-
 namespace android {
 
 class AudioStreamOut;
@@ -40,7 +39,7 @@
 
     AudioHwDevice(audio_module_handle_t handle,
                   const char *moduleName,
-                  audio_hw_device_t *hwDevice,
+                  sp<DeviceHalInterface> hwDevice,
                   Flags flags)
         : mHandle(handle)
         , mModuleName(strdup(moduleName))
@@ -58,8 +57,7 @@
 
     audio_module_handle_t handle() const { return mHandle; }
     const char *moduleName() const { return mModuleName; }
-    audio_hw_device_t *hwDevice() const { return mHwDevice; }
-    uint32_t version() const { return mHwDevice->common.version; }
+    sp<DeviceHalInterface> hwDevice() const { return mHwDevice; }
 
     /** This method creates and opens the audio hardware output stream.
      * The "address" parameter qualifies the "devices" audio device type if needed.
@@ -76,10 +74,12 @@
             struct audio_config *config,
             const char *address);
 
+    bool supportsAudioPatches() const;
+
 private:
     const audio_module_handle_t mHandle;
     const char * const          mModuleName;
-    audio_hw_device_t * const   mHwDevice;
+    sp<DeviceHalInterface>      mHwDevice;
     const Flags                 mFlags;
 };
 
diff --git a/services/audioflinger/AudioMixer.cpp b/services/audioflinger/AudioMixer.cpp
deleted file mode 100644
index 945f4b3..0000000
--- a/services/audioflinger/AudioMixer.cpp
+++ /dev/null
@@ -1,2086 +0,0 @@
-/*
-**
-** Copyright 2007, The Android Open Source Project
-**
-** Licensed under the Apache License, Version 2.0 (the "License");
-** you may not use this file except in compliance with the License.
-** You may obtain a copy of the License at
-**
-**     http://www.apache.org/licenses/LICENSE-2.0
-**
-** Unless required by applicable law or agreed to in writing, software
-** distributed under the License is distributed on an "AS IS" BASIS,
-** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-** See the License for the specific language governing permissions and
-** limitations under the License.
-*/
-
-#define LOG_TAG "AudioMixer"
-//#define LOG_NDEBUG 0
-
-#include "Configuration.h"
-#include <stdint.h>
-#include <string.h>
-#include <stdlib.h>
-#include <math.h>
-#include <sys/types.h>
-
-#include <utils/Errors.h>
-#include <utils/Log.h>
-
-#include <cutils/bitops.h>
-#include <cutils/compiler.h>
-#include <utils/Debug.h>
-
-#include <system/audio.h>
-
-#include <audio_utils/primitives.h>
-#include <audio_utils/format.h>
-
-#include "AudioMixerOps.h"
-#include "AudioMixer.h"
-
-// The FCC_2 macro refers to the Fixed Channel Count of 2 for the legacy integer mixer.
-#ifndef FCC_2
-#define FCC_2 2
-#endif
-
-// Look for MONO_HACK for any Mono hack involving legacy mono channel to
-// stereo channel conversion.
-
-/* VERY_VERY_VERBOSE_LOGGING will show exactly which process hook and track hook is
- * being used. This is a considerable amount of log spam, so don't enable unless you
- * are verifying the hook based code.
- */
-//#define VERY_VERY_VERBOSE_LOGGING
-#ifdef VERY_VERY_VERBOSE_LOGGING
-#define ALOGVV ALOGV
-//define ALOGVV printf  // for test-mixer.cpp
-#else
-#define ALOGVV(a...) do { } while (0)
-#endif
-
-#ifndef ARRAY_SIZE
-#define ARRAY_SIZE(x) (sizeof(x)/sizeof((x)[0]))
-#endif
-
-// TODO: Move these macro/inlines to a header file.
-template <typename T>
-static inline
-T max(const T& x, const T& y) {
-    return x > y ? x : y;
-}
-
-// Set kUseNewMixer to true to use the new mixer engine always. Otherwise the
-// original code will be used for stereo sinks, the new mixer for multichannel.
-static const bool kUseNewMixer = true;
-
-// Set kUseFloat to true to allow floating input into the mixer engine.
-// If kUseNewMixer is false, this is ignored or may be overridden internally
-// because of downmix/upmix support.
-static const bool kUseFloat = true;
-
-// Set to default copy buffer size in frames for input processing.
-static const size_t kCopyBufferFrameCount = 256;
-
-namespace android {
-
-// ----------------------------------------------------------------------------
-
-template <typename T>
-T min(const T& a, const T& b)
-{
-    return a < b ? a : b;
-}
-
-// ----------------------------------------------------------------------------
-
-// Ensure mConfiguredNames bitmask is initialized properly on all architectures.
-// The value of 1 << x is undefined in C when x >= 32.
-
-AudioMixer::AudioMixer(size_t frameCount, uint32_t sampleRate, uint32_t maxNumTracks)
-    :   mTrackNames(0), mConfiguredNames((maxNumTracks >= 32 ? 0 : 1 << maxNumTracks) - 1),
-        mSampleRate(sampleRate)
-{
-    ALOG_ASSERT(maxNumTracks <= MAX_NUM_TRACKS, "maxNumTracks %u > MAX_NUM_TRACKS %u",
-            maxNumTracks, MAX_NUM_TRACKS);
-
-    // AudioMixer is not yet capable of more than 32 active track inputs
-    ALOG_ASSERT(32 >= MAX_NUM_TRACKS, "bad MAX_NUM_TRACKS %d", MAX_NUM_TRACKS);
-
-    pthread_once(&sOnceControl, &sInitRoutine);
-
-    mState.enabledTracks= 0;
-    mState.needsChanged = 0;
-    mState.frameCount   = frameCount;
-    mState.hook         = process__nop;
-    mState.outputTemp   = NULL;
-    mState.resampleTemp = NULL;
-    mState.mLog         = &mDummyLog;
-    // mState.reserved
-
-    // FIXME Most of the following initialization is probably redundant since
-    // tracks[i] should only be referenced if (mTrackNames & (1 << i)) != 0
-    // and mTrackNames is initially 0.  However, leave it here until that's verified.
-    track_t* t = mState.tracks;
-    for (unsigned i=0 ; i < MAX_NUM_TRACKS ; i++) {
-        t->resampler = NULL;
-        t->downmixerBufferProvider = NULL;
-        t->mReformatBufferProvider = NULL;
-        t->mTimestretchBufferProvider = NULL;
-        t++;
-    }
-
-}
-
-AudioMixer::~AudioMixer()
-{
-    track_t* t = mState.tracks;
-    for (unsigned i=0 ; i < MAX_NUM_TRACKS ; i++) {
-        delete t->resampler;
-        delete t->downmixerBufferProvider;
-        delete t->mReformatBufferProvider;
-        delete t->mTimestretchBufferProvider;
-        t++;
-    }
-    delete [] mState.outputTemp;
-    delete [] mState.resampleTemp;
-}
-
-void AudioMixer::setLog(NBLog::Writer *log)
-{
-    mState.mLog = log;
-}
-
-static inline audio_format_t selectMixerInFormat(audio_format_t inputFormat __unused) {
-    return kUseFloat && kUseNewMixer ? AUDIO_FORMAT_PCM_FLOAT : AUDIO_FORMAT_PCM_16_BIT;
-}
-
-int AudioMixer::getTrackName(audio_channel_mask_t channelMask,
-        audio_format_t format, int sessionId)
-{
-    if (!isValidPcmTrackFormat(format)) {
-        ALOGE("AudioMixer::getTrackName invalid format (%#x)", format);
-        return -1;
-    }
-    uint32_t names = (~mTrackNames) & mConfiguredNames;
-    if (names != 0) {
-        int n = __builtin_ctz(names);
-        ALOGV("add track (%d)", n);
-        // assume default parameters for the track, except where noted below
-        track_t* t = &mState.tracks[n];
-        t->needs = 0;
-
-        // Integer volume.
-        // Currently integer volume is kept for the legacy integer mixer.
-        // Will be removed when the legacy mixer path is removed.
-        t->volume[0] = UNITY_GAIN_INT;
-        t->volume[1] = UNITY_GAIN_INT;
-        t->prevVolume[0] = UNITY_GAIN_INT << 16;
-        t->prevVolume[1] = UNITY_GAIN_INT << 16;
-        t->volumeInc[0] = 0;
-        t->volumeInc[1] = 0;
-        t->auxLevel = 0;
-        t->auxInc = 0;
-        t->prevAuxLevel = 0;
-
-        // Floating point volume.
-        t->mVolume[0] = UNITY_GAIN_FLOAT;
-        t->mVolume[1] = UNITY_GAIN_FLOAT;
-        t->mPrevVolume[0] = UNITY_GAIN_FLOAT;
-        t->mPrevVolume[1] = UNITY_GAIN_FLOAT;
-        t->mVolumeInc[0] = 0.;
-        t->mVolumeInc[1] = 0.;
-        t->mAuxLevel = 0.;
-        t->mAuxInc = 0.;
-        t->mPrevAuxLevel = 0.;
-
-        // no initialization needed
-        // t->frameCount
-        t->channelCount = audio_channel_count_from_out_mask(channelMask);
-        t->enabled = false;
-        ALOGV_IF(audio_channel_mask_get_bits(channelMask) != AUDIO_CHANNEL_OUT_STEREO,
-                "Non-stereo channel mask: %d\n", channelMask);
-        t->channelMask = channelMask;
-        t->sessionId = sessionId;
-        // setBufferProvider(name, AudioBufferProvider *) is required before enable(name)
-        t->bufferProvider = NULL;
-        t->buffer.raw = NULL;
-        // no initialization needed
-        // t->buffer.frameCount
-        t->hook = NULL;
-        t->in = NULL;
-        t->resampler = NULL;
-        t->sampleRate = mSampleRate;
-        // setParameter(name, TRACK, MAIN_BUFFER, mixBuffer) is required before enable(name)
-        t->mainBuffer = NULL;
-        t->auxBuffer = NULL;
-        t->mInputBufferProvider = NULL;
-        t->mReformatBufferProvider = NULL;
-        t->downmixerBufferProvider = NULL;
-        t->mPostDownmixReformatBufferProvider = NULL;
-        t->mTimestretchBufferProvider = NULL;
-        t->mMixerFormat = AUDIO_FORMAT_PCM_16_BIT;
-        t->mFormat = format;
-        t->mMixerInFormat = selectMixerInFormat(format);
-        t->mDownmixRequiresFormat = AUDIO_FORMAT_INVALID; // no format required
-        t->mMixerChannelMask = audio_channel_mask_from_representation_and_bits(
-                AUDIO_CHANNEL_REPRESENTATION_POSITION, AUDIO_CHANNEL_OUT_STEREO);
-        t->mMixerChannelCount = audio_channel_count_from_out_mask(t->mMixerChannelMask);
-        t->mPlaybackRate = AUDIO_PLAYBACK_RATE_DEFAULT;
-        // Check the downmixing (or upmixing) requirements.
-        status_t status = t->prepareForDownmix();
-        if (status != OK) {
-            ALOGE("AudioMixer::getTrackName invalid channelMask (%#x)", channelMask);
-            return -1;
-        }
-        // prepareForDownmix() may change mDownmixRequiresFormat
-        ALOGVV("mMixerFormat:%#x  mMixerInFormat:%#x\n", t->mMixerFormat, t->mMixerInFormat);
-        t->prepareForReformat();
-        mTrackNames |= 1 << n;
-        return TRACK0 + n;
-    }
-    ALOGE("AudioMixer::getTrackName out of available tracks");
-    return -1;
-}
-
-void AudioMixer::invalidateState(uint32_t mask)
-{
-    if (mask != 0) {
-        mState.needsChanged |= mask;
-        mState.hook = process__validate;
-    }
- }
-
-// Called when channel masks have changed for a track name
-// TODO: Fix DownmixerBufferProvider not to (possibly) change mixer input format,
-// which will simplify this logic.
-bool AudioMixer::setChannelMasks(int name,
-        audio_channel_mask_t trackChannelMask, audio_channel_mask_t mixerChannelMask) {
-    track_t &track = mState.tracks[name];
-
-    if (trackChannelMask == track.channelMask
-            && mixerChannelMask == track.mMixerChannelMask) {
-        return false;  // no need to change
-    }
-    // always recompute for both channel masks even if only one has changed.
-    const uint32_t trackChannelCount = audio_channel_count_from_out_mask(trackChannelMask);
-    const uint32_t mixerChannelCount = audio_channel_count_from_out_mask(mixerChannelMask);
-    const bool mixerChannelCountChanged = track.mMixerChannelCount != mixerChannelCount;
-
-    ALOG_ASSERT((trackChannelCount <= MAX_NUM_CHANNELS_TO_DOWNMIX)
-            && trackChannelCount
-            && mixerChannelCount);
-    track.channelMask = trackChannelMask;
-    track.channelCount = trackChannelCount;
-    track.mMixerChannelMask = mixerChannelMask;
-    track.mMixerChannelCount = mixerChannelCount;
-
-    // channel masks have changed, does this track need a downmixer?
-    // update to try using our desired format (if we aren't already using it)
-    const audio_format_t prevDownmixerFormat = track.mDownmixRequiresFormat;
-    const status_t status = mState.tracks[name].prepareForDownmix();
-    ALOGE_IF(status != OK,
-            "prepareForDownmix error %d, track channel mask %#x, mixer channel mask %#x",
-            status, track.channelMask, track.mMixerChannelMask);
-
-    if (prevDownmixerFormat != track.mDownmixRequiresFormat) {
-        track.prepareForReformat(); // because of downmixer, track format may change!
-    }
-
-    if (track.resampler && mixerChannelCountChanged) {
-        // resampler channels may have changed.
-        const uint32_t resetToSampleRate = track.sampleRate;
-        delete track.resampler;
-        track.resampler = NULL;
-        track.sampleRate = mSampleRate; // without resampler, track rate is device sample rate.
-        // recreate the resampler with updated format, channels, saved sampleRate.
-        track.setResampler(resetToSampleRate /*trackSampleRate*/, mSampleRate /*devSampleRate*/);
-    }
-    return true;
-}
-
-void AudioMixer::track_t::unprepareForDownmix() {
-    ALOGV("AudioMixer::unprepareForDownmix(%p)", this);
-
-    mDownmixRequiresFormat = AUDIO_FORMAT_INVALID;
-    if (downmixerBufferProvider != NULL) {
-        // this track had previously been configured with a downmixer, delete it
-        ALOGV(" deleting old downmixer");
-        delete downmixerBufferProvider;
-        downmixerBufferProvider = NULL;
-        reconfigureBufferProviders();
-    } else {
-        ALOGV(" nothing to do, no downmixer to delete");
-    }
-}
-
-status_t AudioMixer::track_t::prepareForDownmix()
-{
-    ALOGV("AudioMixer::prepareForDownmix(%p) with mask 0x%x",
-            this, channelMask);
-
-    // discard the previous downmixer if there was one
-    unprepareForDownmix();
-    // MONO_HACK Only remix (upmix or downmix) if the track and mixer/device channel masks
-    // are not the same and not handled internally, as mono -> stereo currently is.
-    if (channelMask == mMixerChannelMask
-            || (channelMask == AUDIO_CHANNEL_OUT_MONO
-                    && mMixerChannelMask == AUDIO_CHANNEL_OUT_STEREO)) {
-        return NO_ERROR;
-    }
-    // DownmixerBufferProvider is only used for position masks.
-    if (audio_channel_mask_get_representation(channelMask)
-                == AUDIO_CHANNEL_REPRESENTATION_POSITION
-            && DownmixerBufferProvider::isMultichannelCapable()) {
-        DownmixerBufferProvider* pDbp = new DownmixerBufferProvider(channelMask,
-                mMixerChannelMask,
-                AUDIO_FORMAT_PCM_16_BIT /* TODO: use mMixerInFormat, now only PCM 16 */,
-                sampleRate, sessionId, kCopyBufferFrameCount);
-
-        if (pDbp->isValid()) { // if constructor completed properly
-            mDownmixRequiresFormat = AUDIO_FORMAT_PCM_16_BIT; // PCM 16 bit required for downmix
-            downmixerBufferProvider = pDbp;
-            reconfigureBufferProviders();
-            return NO_ERROR;
-        }
-        delete pDbp;
-    }
-
-    // Effect downmixer does not accept the channel conversion.  Let's use our remixer.
-    RemixBufferProvider* pRbp = new RemixBufferProvider(channelMask,
-            mMixerChannelMask, mMixerInFormat, kCopyBufferFrameCount);
-    // Remix always finds a conversion whereas Downmixer effect above may fail.
-    downmixerBufferProvider = pRbp;
-    reconfigureBufferProviders();
-    return NO_ERROR;
-}
-
-void AudioMixer::track_t::unprepareForReformat() {
-    ALOGV("AudioMixer::unprepareForReformat(%p)", this);
-    bool requiresReconfigure = false;
-    if (mReformatBufferProvider != NULL) {
-        delete mReformatBufferProvider;
-        mReformatBufferProvider = NULL;
-        requiresReconfigure = true;
-    }
-    if (mPostDownmixReformatBufferProvider != NULL) {
-        delete mPostDownmixReformatBufferProvider;
-        mPostDownmixReformatBufferProvider = NULL;
-        requiresReconfigure = true;
-    }
-    if (requiresReconfigure) {
-        reconfigureBufferProviders();
-    }
-}
-
-status_t AudioMixer::track_t::prepareForReformat()
-{
-    ALOGV("AudioMixer::prepareForReformat(%p) with format %#x", this, mFormat);
-    // discard previous reformatters
-    unprepareForReformat();
-    // only configure reformatters as needed
-    const audio_format_t targetFormat = mDownmixRequiresFormat != AUDIO_FORMAT_INVALID
-            ? mDownmixRequiresFormat : mMixerInFormat;
-    bool requiresReconfigure = false;
-    if (mFormat != targetFormat) {
-        mReformatBufferProvider = new ReformatBufferProvider(
-                audio_channel_count_from_out_mask(channelMask),
-                mFormat,
-                targetFormat,
-                kCopyBufferFrameCount);
-        requiresReconfigure = true;
-    }
-    if (targetFormat != mMixerInFormat) {
-        mPostDownmixReformatBufferProvider = new ReformatBufferProvider(
-                audio_channel_count_from_out_mask(mMixerChannelMask),
-                targetFormat,
-                mMixerInFormat,
-                kCopyBufferFrameCount);
-        requiresReconfigure = true;
-    }
-    if (requiresReconfigure) {
-        reconfigureBufferProviders();
-    }
-    return NO_ERROR;
-}
-
-void AudioMixer::track_t::reconfigureBufferProviders()
-{
-    bufferProvider = mInputBufferProvider;
-    if (mReformatBufferProvider) {
-        mReformatBufferProvider->setBufferProvider(bufferProvider);
-        bufferProvider = mReformatBufferProvider;
-    }
-    if (downmixerBufferProvider) {
-        downmixerBufferProvider->setBufferProvider(bufferProvider);
-        bufferProvider = downmixerBufferProvider;
-    }
-    if (mPostDownmixReformatBufferProvider) {
-        mPostDownmixReformatBufferProvider->setBufferProvider(bufferProvider);
-        bufferProvider = mPostDownmixReformatBufferProvider;
-    }
-    if (mTimestretchBufferProvider) {
-        mTimestretchBufferProvider->setBufferProvider(bufferProvider);
-        bufferProvider = mTimestretchBufferProvider;
-    }
-}
-
-void AudioMixer::deleteTrackName(int name)
-{
-    ALOGV("AudioMixer::deleteTrackName(%d)", name);
-    name -= TRACK0;
-    LOG_ALWAYS_FATAL_IF(name < 0 || name >= (int)MAX_NUM_TRACKS, "bad track name %d", name);
-    ALOGV("deleteTrackName(%d)", name);
-    track_t& track(mState.tracks[ name ]);
-    if (track.enabled) {
-        track.enabled = false;
-        invalidateState(1<<name);
-    }
-    // delete the resampler
-    delete track.resampler;
-    track.resampler = NULL;
-    // delete the downmixer
-    mState.tracks[name].unprepareForDownmix();
-    // delete the reformatter
-    mState.tracks[name].unprepareForReformat();
-    // delete the timestretch provider
-    delete track.mTimestretchBufferProvider;
-    track.mTimestretchBufferProvider = NULL;
-    mTrackNames &= ~(1<<name);
-}
-
-void AudioMixer::enable(int name)
-{
-    name -= TRACK0;
-    ALOG_ASSERT(uint32_t(name) < MAX_NUM_TRACKS, "bad track name %d", name);
-    track_t& track = mState.tracks[name];
-
-    if (!track.enabled) {
-        track.enabled = true;
-        ALOGV("enable(%d)", name);
-        invalidateState(1 << name);
-    }
-}
-
-void AudioMixer::disable(int name)
-{
-    name -= TRACK0;
-    ALOG_ASSERT(uint32_t(name) < MAX_NUM_TRACKS, "bad track name %d", name);
-    track_t& track = mState.tracks[name];
-
-    if (track.enabled) {
-        track.enabled = false;
-        ALOGV("disable(%d)", name);
-        invalidateState(1 << name);
-    }
-}
-
-/* Sets the volume ramp variables for the AudioMixer.
- *
- * The volume ramp variables are used to transition from the previous
- * volume to the set volume.  ramp controls the duration of the transition.
- * Its value is typically one state framecount period, but may also be 0,
- * meaning "immediate."
- *
- * FIXME: 1) Volume ramp is enabled only if there is a nonzero integer increment
- * even if there is a nonzero floating point increment (in that case, the volume
- * change is immediate).  This restriction should be changed when the legacy mixer
- * is removed (see #2).
- * FIXME: 2) Integer volume variables are used for Legacy mixing and should be removed
- * when no longer needed.
- *
- * @param newVolume set volume target in floating point [0.0, 1.0].
- * @param ramp number of frames to increment over. if ramp is 0, the volume
- * should be set immediately.  Currently ramp should not exceed 65535 (frames).
- * @param pIntSetVolume pointer to the U4.12 integer target volume, set on return.
- * @param pIntPrevVolume pointer to the U4.28 integer previous volume, set on return.
- * @param pIntVolumeInc pointer to the U4.28 increment per output audio frame, set on return.
- * @param pSetVolume pointer to the float target volume, set on return.
- * @param pPrevVolume pointer to the float previous volume, set on return.
- * @param pVolumeInc pointer to the float increment per output audio frame, set on return.
- * @return true if the volume has changed, false if volume is same.
- */
-static inline bool setVolumeRampVariables(float newVolume, int32_t ramp,
-        int16_t *pIntSetVolume, int32_t *pIntPrevVolume, int32_t *pIntVolumeInc,
-        float *pSetVolume, float *pPrevVolume, float *pVolumeInc) {
-    // check floating point volume to see if it is identical to the previously
-    // set volume.
-    // We do not use a tolerance here (and reject changes too small)
-    // as it may be confusing to use a different value than the one set.
-    // If the resulting volume is too small to ramp, it is a direct set of the volume.
-    if (newVolume == *pSetVolume) {
-        return false;
-    }
-    if (newVolume < 0) {
-        newVolume = 0; // should not have negative volumes
-    } else {
-        switch (fpclassify(newVolume)) {
-        case FP_SUBNORMAL:
-        case FP_NAN:
-            newVolume = 0;
-            break;
-        case FP_ZERO:
-            break; // zero volume is fine
-        case FP_INFINITE:
-            // Infinite volume could be handled consistently since
-            // floating point math saturates at infinities,
-            // but we limit volume to unity gain float.
-            // ramp = 0; break;
-            //
-            newVolume = AudioMixer::UNITY_GAIN_FLOAT;
-            break;
-        case FP_NORMAL:
-        default:
-            // Floating point does not have problems with overflow wrap
-            // that integer has.  However, we limit the volume to
-            // unity gain here.
-            // TODO: Revisit the volume limitation and perhaps parameterize.
-            if (newVolume > AudioMixer::UNITY_GAIN_FLOAT) {
-                newVolume = AudioMixer::UNITY_GAIN_FLOAT;
-            }
-            break;
-        }
-    }
-
-    // set floating point volume ramp
-    if (ramp != 0) {
-        // when the ramp completes, *pPrevVolume is set to *pSetVolume, so there
-        // is no computational mismatch; hence equality is checked here.
-        ALOGD_IF(*pPrevVolume != *pSetVolume, "previous float ramp hasn't finished,"
-                " prev:%f  set_to:%f", *pPrevVolume, *pSetVolume);
-        const float inc = (newVolume - *pPrevVolume) / ramp; // could be inf, nan, subnormal
-        const float maxv = max(newVolume, *pPrevVolume); // could be inf, cannot be nan, subnormal
-
-        if (isnormal(inc) // inc must be a normal number (no subnormals, infinite, nan)
-                && maxv + inc != maxv) { // inc must make forward progress
-            *pVolumeInc = inc;
-            // ramp is set now.
-            // Note: if newVolume is 0, then near the end of the ramp,
-            // it may be possible that the ramped volume may be subnormal or
-            // temporarily negative by a small amount or subnormal due to floating
-            // point inaccuracies.
-        } else {
-            ramp = 0; // ramp not allowed
-        }
-    }
-
-    // compute and check integer volume, no need to check negative values
-    // The integer volume is limited to "unity_gain" to avoid wrapping and other
-    // audio artifacts, so it never reaches the range limit of U4.28.
-    // We safely use signed 16 and 32 bit integers here.
-    const float scaledVolume = newVolume * AudioMixer::UNITY_GAIN_INT; // not neg, subnormal, nan
-    const int32_t intVolume = (scaledVolume >= (float)AudioMixer::UNITY_GAIN_INT) ?
-            AudioMixer::UNITY_GAIN_INT : (int32_t)scaledVolume;
-
-    // set integer volume ramp
-    if (ramp != 0) {
-        // integer volume is U4.12 (to use 16 bit multiplies), but ramping uses U4.28.
-        // when the ramp completes, *pIntPrevVolume is set to *pIntSetVolume << 16, so there
-        // is no computational mismatch; hence equality is checked here.
-        ALOGD_IF(*pIntPrevVolume != *pIntSetVolume << 16, "previous int ramp hasn't finished,"
-                " prev:%d  set_to:%d", *pIntPrevVolume, *pIntSetVolume << 16);
-        const int32_t inc = ((intVolume << 16) - *pIntPrevVolume) / ramp;
-
-        if (inc != 0) { // inc must make forward progress
-            *pIntVolumeInc = inc;
-        } else {
-            ramp = 0; // ramp not allowed
-        }
-    }
-
-    // if no ramp, or ramp not allowed, then clear float and integer increments
-    if (ramp == 0) {
-        *pVolumeInc = 0;
-        *pPrevVolume = newVolume;
-        *pIntVolumeInc = 0;
-        *pIntPrevVolume = intVolume << 16;
-    }
-    *pSetVolume = newVolume;
-    *pIntSetVolume = intVolume;
-    return true;
-}
-
-void AudioMixer::setParameter(int name, int target, int param, void *value)
-{
-    name -= TRACK0;
-    ALOG_ASSERT(uint32_t(name) < MAX_NUM_TRACKS, "bad track name %d", name);
-    track_t& track = mState.tracks[name];
-
-    int valueInt = static_cast<int>(reinterpret_cast<uintptr_t>(value));
-    int32_t *valueBuf = reinterpret_cast<int32_t*>(value);
-
-    switch (target) {
-
-    case TRACK:
-        switch (param) {
-        case CHANNEL_MASK: {
-            const audio_channel_mask_t trackChannelMask =
-                static_cast<audio_channel_mask_t>(valueInt);
-            if (setChannelMasks(name, trackChannelMask, track.mMixerChannelMask)) {
-                ALOGV("setParameter(TRACK, CHANNEL_MASK, %x)", trackChannelMask);
-                invalidateState(1 << name);
-            }
-            } break;
-        case MAIN_BUFFER:
-            if (track.mainBuffer != valueBuf) {
-                track.mainBuffer = valueBuf;
-                ALOGV("setParameter(TRACK, MAIN_BUFFER, %p)", valueBuf);
-                invalidateState(1 << name);
-            }
-            break;
-        case AUX_BUFFER:
-            if (track.auxBuffer != valueBuf) {
-                track.auxBuffer = valueBuf;
-                ALOGV("setParameter(TRACK, AUX_BUFFER, %p)", valueBuf);
-                invalidateState(1 << name);
-            }
-            break;
-        case FORMAT: {
-            audio_format_t format = static_cast<audio_format_t>(valueInt);
-            if (track.mFormat != format) {
-                ALOG_ASSERT(audio_is_linear_pcm(format), "Invalid format %#x", format);
-                track.mFormat = format;
-                ALOGV("setParameter(TRACK, FORMAT, %#x)", format);
-                track.prepareForReformat();
-                invalidateState(1 << name);
-            }
-            } break;
-        // FIXME do we want to support setting the downmix type from AudioFlinger?
-        //         for a specific track? or per mixer?
-        /* case DOWNMIX_TYPE:
-            break          */
-        case MIXER_FORMAT: {
-            audio_format_t format = static_cast<audio_format_t>(valueInt);
-            if (track.mMixerFormat != format) {
-                track.mMixerFormat = format;
-                ALOGV("setParameter(TRACK, MIXER_FORMAT, %#x)", format);
-            }
-            } break;
-        case MIXER_CHANNEL_MASK: {
-            const audio_channel_mask_t mixerChannelMask =
-                    static_cast<audio_channel_mask_t>(valueInt);
-            if (setChannelMasks(name, track.channelMask, mixerChannelMask)) {
-                ALOGV("setParameter(TRACK, MIXER_CHANNEL_MASK, %#x)", mixerChannelMask);
-                invalidateState(1 << name);
-            }
-            } break;
-        default:
-            LOG_ALWAYS_FATAL("setParameter track: bad param %d", param);
-        }
-        break;
-
-    case RESAMPLE:
-        switch (param) {
-        case SAMPLE_RATE:
-            ALOG_ASSERT(valueInt > 0, "bad sample rate %d", valueInt);
-            if (track.setResampler(uint32_t(valueInt), mSampleRate)) {
-                ALOGV("setParameter(RESAMPLE, SAMPLE_RATE, %u)",
-                        uint32_t(valueInt));
-                invalidateState(1 << name);
-            }
-            break;
-        case RESET:
-            track.resetResampler();
-            invalidateState(1 << name);
-            break;
-        case REMOVE:
-            delete track.resampler;
-            track.resampler = NULL;
-            track.sampleRate = mSampleRate;
-            invalidateState(1 << name);
-            break;
-        default:
-            LOG_ALWAYS_FATAL("setParameter resample: bad param %d", param);
-        }
-        break;
-
-    case RAMP_VOLUME:
-    case VOLUME:
-        switch (param) {
-        case AUXLEVEL:
-            if (setVolumeRampVariables(*reinterpret_cast<float*>(value),
-                    target == RAMP_VOLUME ? mState.frameCount : 0,
-                    &track.auxLevel, &track.prevAuxLevel, &track.auxInc,
-                    &track.mAuxLevel, &track.mPrevAuxLevel, &track.mAuxInc)) {
-                ALOGV("setParameter(%s, AUXLEVEL: %04x)",
-                        target == VOLUME ? "VOLUME" : "RAMP_VOLUME", track.auxLevel);
-                invalidateState(1 << name);
-            }
-            break;
-        default:
-            if ((unsigned)param >= VOLUME0 && (unsigned)param < VOLUME0 + MAX_NUM_VOLUMES) {
-                if (setVolumeRampVariables(*reinterpret_cast<float*>(value),
-                        target == RAMP_VOLUME ? mState.frameCount : 0,
-                        &track.volume[param - VOLUME0], &track.prevVolume[param - VOLUME0],
-                        &track.volumeInc[param - VOLUME0],
-                        &track.mVolume[param - VOLUME0], &track.mPrevVolume[param - VOLUME0],
-                        &track.mVolumeInc[param - VOLUME0])) {
-                    ALOGV("setParameter(%s, VOLUME%d: %04x)",
-                            target == VOLUME ? "VOLUME" : "RAMP_VOLUME", param - VOLUME0,
-                                    track.volume[param - VOLUME0]);
-                    invalidateState(1 << name);
-                }
-            } else {
-                LOG_ALWAYS_FATAL("setParameter volume: bad param %d", param);
-            }
-        }
-        break;
-        case TIMESTRETCH:
-            switch (param) {
-            case PLAYBACK_RATE: {
-                const AudioPlaybackRate *playbackRate =
-                        reinterpret_cast<AudioPlaybackRate*>(value);
-                ALOGW_IF(!isAudioPlaybackRateValid(*playbackRate),
-                        "bad parameters speed %f, pitch %f",playbackRate->mSpeed,
-                        playbackRate->mPitch);
-                if (track.setPlaybackRate(*playbackRate)) {
-                    ALOGV("setParameter(TIMESTRETCH, PLAYBACK_RATE, STRETCH_MODE, FALLBACK_MODE "
-                            "%f %f %d %d",
-                            playbackRate->mSpeed,
-                            playbackRate->mPitch,
-                            playbackRate->mStretchMode,
-                            playbackRate->mFallbackMode);
-                    // invalidateState(1 << name);
-                }
-            } break;
-            default:
-                LOG_ALWAYS_FATAL("setParameter timestretch: bad param %d", param);
-            }
-            break;
-
-    default:
-        LOG_ALWAYS_FATAL("setParameter: bad target %d", target);
-    }
-}
-
-bool AudioMixer::track_t::setResampler(uint32_t trackSampleRate, uint32_t devSampleRate)
-{
-    if (trackSampleRate != devSampleRate || resampler != NULL) {
-        if (sampleRate != trackSampleRate) {
-            sampleRate = trackSampleRate;
-            if (resampler == NULL) {
-                ALOGV("Creating resampler from track %d Hz to device %d Hz",
-                        trackSampleRate, devSampleRate);
-                AudioResampler::src_quality quality;
-                // force lowest quality level resampler if use case isn't music or video
-                // FIXME this is flawed for dynamic sample rates, as we choose the resampler
-                // quality level based on the initial ratio, but that could change later.
-                // Should have a way to distinguish tracks with static ratios vs. dynamic ratios.
-                if (isMusicRate(trackSampleRate)) {
-                    quality = AudioResampler::DEFAULT_QUALITY;
-                } else {
-                    quality = AudioResampler::DYN_LOW_QUALITY;
-                }
-
-                // TODO: Remove MONO_HACK. Resampler sees #channels after the downmixer
-                // but if none exists, it is the channel count (1 for mono).
-                const int resamplerChannelCount = downmixerBufferProvider != NULL
-                        ? mMixerChannelCount : channelCount;
-                ALOGVV("Creating resampler:"
-                        " format(%#x) channels(%d) devSampleRate(%u) quality(%d)\n",
-                        mMixerInFormat, resamplerChannelCount, devSampleRate, quality);
-                resampler = AudioResampler::create(
-                        mMixerInFormat,
-                        resamplerChannelCount,
-                        devSampleRate, quality);
-            }
-            return true;
-        }
-    }
-    return false;
-}
-
-bool AudioMixer::track_t::setPlaybackRate(const AudioPlaybackRate &playbackRate)
-{
-    if ((mTimestretchBufferProvider == NULL &&
-            fabs(playbackRate.mSpeed - mPlaybackRate.mSpeed) < AUDIO_TIMESTRETCH_SPEED_MIN_DELTA &&
-            fabs(playbackRate.mPitch - mPlaybackRate.mPitch) < AUDIO_TIMESTRETCH_PITCH_MIN_DELTA) ||
-            isAudioPlaybackRateEqual(playbackRate, mPlaybackRate)) {
-        return false;
-    }
-    mPlaybackRate = playbackRate;
-    if (mTimestretchBufferProvider == NULL) {
-        // TODO: Remove MONO_HACK. Resampler sees #channels after the downmixer
-        // but if none exists, it is the channel count (1 for mono).
-        const int timestretchChannelCount = downmixerBufferProvider != NULL
-                ? mMixerChannelCount : channelCount;
-        mTimestretchBufferProvider = new TimestretchBufferProvider(timestretchChannelCount,
-                mMixerInFormat, sampleRate, playbackRate);
-        reconfigureBufferProviders();
-    } else {
-        reinterpret_cast<TimestretchBufferProvider*>(mTimestretchBufferProvider)
-                ->setPlaybackRate(playbackRate);
-    }
-    return true;
-}
-
-/* Checks to see if the volume ramp has completed and clears the increment
- * variables appropriately.
- *
- * FIXME: There is code to handle int/float ramp variable switchover should it not
- * complete within a mixer buffer processing call, but it is preferred to avoid switchover
- * due to precision issues.  The switchover code is included for legacy code purposes
- * and can be removed once the integer volume is removed.
- *
- * It is not sufficient to clear only the volumeInc integer variable because
- * if one channel requires ramping, all channels are ramped.
- *
- * There is a bit of duplicated code here, but it keeps backward compatibility.
- */
-inline void AudioMixer::track_t::adjustVolumeRamp(bool aux, bool useFloat)
-{
-    if (useFloat) {
-        for (uint32_t i = 0; i < MAX_NUM_VOLUMES; i++) {
-            if ((mVolumeInc[i] > 0 && mPrevVolume[i] + mVolumeInc[i] >= mVolume[i]) ||
-                     (mVolumeInc[i] < 0 && mPrevVolume[i] + mVolumeInc[i] <= mVolume[i])) {
-                volumeInc[i] = 0;
-                prevVolume[i] = volume[i] << 16;
-                mVolumeInc[i] = 0.;
-                mPrevVolume[i] = mVolume[i];
-            } else {
-                //ALOGV("ramp: %f %f %f", mVolume[i], mPrevVolume[i], mVolumeInc[i]);
-                prevVolume[i] = u4_28_from_float(mPrevVolume[i]);
-            }
-        }
-    } else {
-        for (uint32_t i = 0; i < MAX_NUM_VOLUMES; i++) {
-            if (((volumeInc[i]>0) && (((prevVolume[i]+volumeInc[i])>>16) >= volume[i])) ||
-                    ((volumeInc[i]<0) && (((prevVolume[i]+volumeInc[i])>>16) <= volume[i]))) {
-                volumeInc[i] = 0;
-                prevVolume[i] = volume[i] << 16;
-                mVolumeInc[i] = 0.;
-                mPrevVolume[i] = mVolume[i];
-            } else {
-                //ALOGV("ramp: %d %d %d", volume[i] << 16, prevVolume[i], volumeInc[i]);
-                mPrevVolume[i]  = float_from_u4_28(prevVolume[i]);
-            }
-        }
-    }
-    /* TODO: aux is always integer regardless of output buffer type */
-    if (aux) {
-        if (((auxInc>0) && (((prevAuxLevel+auxInc)>>16) >= auxLevel)) ||
-                ((auxInc<0) && (((prevAuxLevel+auxInc)>>16) <= auxLevel))) {
-            auxInc = 0;
-            prevAuxLevel = auxLevel << 16;
-            mAuxInc = 0.;
-            mPrevAuxLevel = mAuxLevel;
-        } else {
-            //ALOGV("aux ramp: %d %d %d", auxLevel << 16, prevAuxLevel, auxInc);
-        }
-    }
-}
-
-size_t AudioMixer::getUnreleasedFrames(int name) const
-{
-    name -= TRACK0;
-    if (uint32_t(name) < MAX_NUM_TRACKS) {
-        return mState.tracks[name].getUnreleasedFrames();
-    }
-    return 0;
-}
-
-void AudioMixer::setBufferProvider(int name, AudioBufferProvider* bufferProvider)
-{
-    name -= TRACK0;
-    ALOG_ASSERT(uint32_t(name) < MAX_NUM_TRACKS, "bad track name %d", name);
-
-    if (mState.tracks[name].mInputBufferProvider == bufferProvider) {
-        return; // don't reset any buffer providers if identical.
-    }
-    if (mState.tracks[name].mReformatBufferProvider != NULL) {
-        mState.tracks[name].mReformatBufferProvider->reset();
-    } else if (mState.tracks[name].downmixerBufferProvider != NULL) {
-        mState.tracks[name].downmixerBufferProvider->reset();
-    } else if (mState.tracks[name].mPostDownmixReformatBufferProvider != NULL) {
-        mState.tracks[name].mPostDownmixReformatBufferProvider->reset();
-    } else if (mState.tracks[name].mTimestretchBufferProvider != NULL) {
-        mState.tracks[name].mTimestretchBufferProvider->reset();
-    }
-
-    mState.tracks[name].mInputBufferProvider = bufferProvider;
-    mState.tracks[name].reconfigureBufferProviders();
-}
-
-
-void AudioMixer::process()
-{
-    mState.hook(&mState);
-}
-
-
-void AudioMixer::process__validate(state_t* state)
-{
-    ALOGW_IF(!state->needsChanged,
-        "in process__validate() but nothing's invalid");
-
-    uint32_t changed = state->needsChanged;
-    state->needsChanged = 0; // clear the validation flag
-
-    // recompute which tracks are enabled / disabled
-    uint32_t enabled = 0;
-    uint32_t disabled = 0;
-    while (changed) {
-        const int i = 31 - __builtin_clz(changed);
-        const uint32_t mask = 1<<i;
-        changed &= ~mask;
-        track_t& t = state->tracks[i];
-        (t.enabled ? enabled : disabled) |= mask;
-    }
-    state->enabledTracks &= ~disabled;
-    state->enabledTracks |=  enabled;
-
-    // compute everything we need...
-    int countActiveTracks = 0;
-    // TODO: fix all16BitsStereNoResample logic to
-    // either properly handle muted tracks (it should ignore them)
-    // or remove altogether as an obsolete optimization.
-    bool all16BitsStereoNoResample = true;
-    bool resampling = false;
-    bool volumeRamp = false;
-    uint32_t en = state->enabledTracks;
-    while (en) {
-        const int i = 31 - __builtin_clz(en);
-        en &= ~(1<<i);
-
-        countActiveTracks++;
-        track_t& t = state->tracks[i];
-        uint32_t n = 0;
-        // FIXME can overflow (mask is only 3 bits)
-        n |= NEEDS_CHANNEL_1 + t.channelCount - 1;
-        if (t.doesResample()) {
-            n |= NEEDS_RESAMPLE;
-        }
-        if (t.auxLevel != 0 && t.auxBuffer != NULL) {
-            n |= NEEDS_AUX;
-        }
-
-        if (t.volumeInc[0]|t.volumeInc[1]) {
-            volumeRamp = true;
-        } else if (!t.doesResample() && t.volumeRL == 0) {
-            n |= NEEDS_MUTE;
-        }
-        t.needs = n;
-
-        if (n & NEEDS_MUTE) {
-            t.hook = track__nop;
-        } else {
-            if (n & NEEDS_AUX) {
-                all16BitsStereoNoResample = false;
-            }
-            if (n & NEEDS_RESAMPLE) {
-                all16BitsStereoNoResample = false;
-                resampling = true;
-                t.hook = getTrackHook(TRACKTYPE_RESAMPLE, t.mMixerChannelCount,
-                        t.mMixerInFormat, t.mMixerFormat);
-                ALOGV_IF((n & NEEDS_CHANNEL_COUNT__MASK) > NEEDS_CHANNEL_2,
-                        "Track %d needs downmix + resample", i);
-            } else {
-                if ((n & NEEDS_CHANNEL_COUNT__MASK) == NEEDS_CHANNEL_1){
-                    t.hook = getTrackHook(
-                            (t.mMixerChannelMask == AUDIO_CHANNEL_OUT_STEREO  // TODO: MONO_HACK
-                                    && t.channelMask == AUDIO_CHANNEL_OUT_MONO)
-                                ? TRACKTYPE_NORESAMPLEMONO : TRACKTYPE_NORESAMPLE,
-                            t.mMixerChannelCount,
-                            t.mMixerInFormat, t.mMixerFormat);
-                    all16BitsStereoNoResample = false;
-                }
-                if ((n & NEEDS_CHANNEL_COUNT__MASK) >= NEEDS_CHANNEL_2){
-                    t.hook = getTrackHook(TRACKTYPE_NORESAMPLE, t.mMixerChannelCount,
-                            t.mMixerInFormat, t.mMixerFormat);
-                    ALOGV_IF((n & NEEDS_CHANNEL_COUNT__MASK) > NEEDS_CHANNEL_2,
-                            "Track %d needs downmix", i);
-                }
-            }
-        }
-    }
-
-    // select the processing hooks
-    state->hook = process__nop;
-    if (countActiveTracks > 0) {
-        if (resampling) {
-            if (!state->outputTemp) {
-                state->outputTemp = new int32_t[MAX_NUM_CHANNELS * state->frameCount];
-            }
-            if (!state->resampleTemp) {
-                state->resampleTemp = new int32_t[MAX_NUM_CHANNELS * state->frameCount];
-            }
-            state->hook = process__genericResampling;
-        } else {
-            if (state->outputTemp) {
-                delete [] state->outputTemp;
-                state->outputTemp = NULL;
-            }
-            if (state->resampleTemp) {
-                delete [] state->resampleTemp;
-                state->resampleTemp = NULL;
-            }
-            state->hook = process__genericNoResampling;
-            if (all16BitsStereoNoResample && !volumeRamp) {
-                if (countActiveTracks == 1) {
-                    const int i = 31 - __builtin_clz(state->enabledTracks);
-                    track_t& t = state->tracks[i];
-                    if ((t.needs & NEEDS_MUTE) == 0) {
-                        // The check prevents a muted track from acquiring a process hook.
-                        //
-                        // This is dangerous if the track is MONO as that requires
-                        // special case handling due to implicit channel duplication.
-                        // Stereo or Multichannel should actually be fine here.
-                        state->hook = getProcessHook(PROCESSTYPE_NORESAMPLEONETRACK,
-                                t.mMixerChannelCount, t.mMixerInFormat, t.mMixerFormat);
-                    }
-                }
-            }
-        }
-    }
-
-    ALOGV("mixer configuration change: %d activeTracks (%08x) "
-        "all16BitsStereoNoResample=%d, resampling=%d, volumeRamp=%d",
-        countActiveTracks, state->enabledTracks,
-        all16BitsStereoNoResample, resampling, volumeRamp);
-
-   state->hook(state);
-
-    // Now that the volume ramp has been done, set optimal state and
-    // track hooks for subsequent mixer process
-    if (countActiveTracks > 0) {
-        bool allMuted = true;
-        uint32_t en = state->enabledTracks;
-        while (en) {
-            const int i = 31 - __builtin_clz(en);
-            en &= ~(1<<i);
-            track_t& t = state->tracks[i];
-            if (!t.doesResample() && t.volumeRL == 0) {
-                t.needs |= NEEDS_MUTE;
-                t.hook = track__nop;
-            } else {
-                allMuted = false;
-            }
-        }
-        if (allMuted) {
-            state->hook = process__nop;
-        } else if (all16BitsStereoNoResample) {
-            if (countActiveTracks == 1) {
-                const int i = 31 - __builtin_clz(state->enabledTracks);
-                track_t& t = state->tracks[i];
-                // Muted single tracks handled by allMuted above.
-                state->hook = getProcessHook(PROCESSTYPE_NORESAMPLEONETRACK,
-                        t.mMixerChannelCount, t.mMixerInFormat, t.mMixerFormat);
-            }
-        }
-    }
-}
-
-
-void AudioMixer::track__genericResample(track_t* t, int32_t* out, size_t outFrameCount,
-        int32_t* temp, int32_t* aux)
-{
-    ALOGVV("track__genericResample\n");
-    t->resampler->setSampleRate(t->sampleRate);
-
-    // ramp gain - resample to temp buffer and scale/mix in 2nd step
-    if (aux != NULL) {
-        // always resample with unity gain when sending to auxiliary buffer to be able
-        // to apply send level after resampling
-        t->resampler->setVolume(UNITY_GAIN_FLOAT, UNITY_GAIN_FLOAT);
-        memset(temp, 0, outFrameCount * t->mMixerChannelCount * sizeof(int32_t));
-        t->resampler->resample(temp, outFrameCount, t->bufferProvider);
-        if (CC_UNLIKELY(t->volumeInc[0]|t->volumeInc[1]|t->auxInc)) {
-            volumeRampStereo(t, out, outFrameCount, temp, aux);
-        } else {
-            volumeStereo(t, out, outFrameCount, temp, aux);
-        }
-    } else {
-        if (CC_UNLIKELY(t->volumeInc[0]|t->volumeInc[1])) {
-            t->resampler->setVolume(UNITY_GAIN_FLOAT, UNITY_GAIN_FLOAT);
-            memset(temp, 0, outFrameCount * MAX_NUM_CHANNELS * sizeof(int32_t));
-            t->resampler->resample(temp, outFrameCount, t->bufferProvider);
-            volumeRampStereo(t, out, outFrameCount, temp, aux);
-        }
-
-        // constant gain
-        else {
-            t->resampler->setVolume(t->mVolume[0], t->mVolume[1]);
-            t->resampler->resample(out, outFrameCount, t->bufferProvider);
-        }
-    }
-}
-
-void AudioMixer::track__nop(track_t* t __unused, int32_t* out __unused,
-        size_t outFrameCount __unused, int32_t* temp __unused, int32_t* aux __unused)
-{
-}
-
-void AudioMixer::volumeRampStereo(track_t* t, int32_t* out, size_t frameCount, int32_t* temp,
-        int32_t* aux)
-{
-    int32_t vl = t->prevVolume[0];
-    int32_t vr = t->prevVolume[1];
-    const int32_t vlInc = t->volumeInc[0];
-    const int32_t vrInc = t->volumeInc[1];
-
-    //ALOGD("[0] %p: inc=%f, v0=%f, v1=%d, final=%f, count=%d",
-    //        t, vlInc/65536.0f, vl/65536.0f, t->volume[0],
-    //       (vl + vlInc*frameCount)/65536.0f, frameCount);
-
-    // ramp volume
-    if (CC_UNLIKELY(aux != NULL)) {
-        int32_t va = t->prevAuxLevel;
-        const int32_t vaInc = t->auxInc;
-        int32_t l;
-        int32_t r;
-
-        do {
-            l = (*temp++ >> 12);
-            r = (*temp++ >> 12);
-            *out++ += (vl >> 16) * l;
-            *out++ += (vr >> 16) * r;
-            *aux++ += (va >> 17) * (l + r);
-            vl += vlInc;
-            vr += vrInc;
-            va += vaInc;
-        } while (--frameCount);
-        t->prevAuxLevel = va;
-    } else {
-        do {
-            *out++ += (vl >> 16) * (*temp++ >> 12);
-            *out++ += (vr >> 16) * (*temp++ >> 12);
-            vl += vlInc;
-            vr += vrInc;
-        } while (--frameCount);
-    }
-    t->prevVolume[0] = vl;
-    t->prevVolume[1] = vr;
-    t->adjustVolumeRamp(aux != NULL);
-}
-
-void AudioMixer::volumeStereo(track_t* t, int32_t* out, size_t frameCount, int32_t* temp,
-        int32_t* aux)
-{
-    const int16_t vl = t->volume[0];
-    const int16_t vr = t->volume[1];
-
-    if (CC_UNLIKELY(aux != NULL)) {
-        const int16_t va = t->auxLevel;
-        do {
-            int16_t l = (int16_t)(*temp++ >> 12);
-            int16_t r = (int16_t)(*temp++ >> 12);
-            out[0] = mulAdd(l, vl, out[0]);
-            int16_t a = (int16_t)(((int32_t)l + r) >> 1);
-            out[1] = mulAdd(r, vr, out[1]);
-            out += 2;
-            aux[0] = mulAdd(a, va, aux[0]);
-            aux++;
-        } while (--frameCount);
-    } else {
-        do {
-            int16_t l = (int16_t)(*temp++ >> 12);
-            int16_t r = (int16_t)(*temp++ >> 12);
-            out[0] = mulAdd(l, vl, out[0]);
-            out[1] = mulAdd(r, vr, out[1]);
-            out += 2;
-        } while (--frameCount);
-    }
-}
-
-void AudioMixer::track__16BitsStereo(track_t* t, int32_t* out, size_t frameCount,
-        int32_t* temp __unused, int32_t* aux)
-{
-    ALOGVV("track__16BitsStereo\n");
-    const int16_t *in = static_cast<const int16_t *>(t->in);
-
-    if (CC_UNLIKELY(aux != NULL)) {
-        int32_t l;
-        int32_t r;
-        // ramp gain
-        if (CC_UNLIKELY(t->volumeInc[0]|t->volumeInc[1]|t->auxInc)) {
-            int32_t vl = t->prevVolume[0];
-            int32_t vr = t->prevVolume[1];
-            int32_t va = t->prevAuxLevel;
-            const int32_t vlInc = t->volumeInc[0];
-            const int32_t vrInc = t->volumeInc[1];
-            const int32_t vaInc = t->auxInc;
-            // ALOGD("[1] %p: inc=%f, v0=%f, v1=%d, final=%f, count=%d",
-            //        t, vlInc/65536.0f, vl/65536.0f, t->volume[0],
-            //        (vl + vlInc*frameCount)/65536.0f, frameCount);
-
-            do {
-                l = (int32_t)*in++;
-                r = (int32_t)*in++;
-                *out++ += (vl >> 16) * l;
-                *out++ += (vr >> 16) * r;
-                *aux++ += (va >> 17) * (l + r);
-                vl += vlInc;
-                vr += vrInc;
-                va += vaInc;
-            } while (--frameCount);
-
-            t->prevVolume[0] = vl;
-            t->prevVolume[1] = vr;
-            t->prevAuxLevel = va;
-            t->adjustVolumeRamp(true);
-        }
-
-        // constant gain
-        else {
-            const uint32_t vrl = t->volumeRL;
-            const int16_t va = (int16_t)t->auxLevel;
-            do {
-                uint32_t rl = *reinterpret_cast<const uint32_t *>(in);
-                int16_t a = (int16_t)(((int32_t)in[0] + in[1]) >> 1);
-                in += 2;
-                out[0] = mulAddRL(1, rl, vrl, out[0]);
-                out[1] = mulAddRL(0, rl, vrl, out[1]);
-                out += 2;
-                aux[0] = mulAdd(a, va, aux[0]);
-                aux++;
-            } while (--frameCount);
-        }
-    } else {
-        // ramp gain
-        if (CC_UNLIKELY(t->volumeInc[0]|t->volumeInc[1])) {
-            int32_t vl = t->prevVolume[0];
-            int32_t vr = t->prevVolume[1];
-            const int32_t vlInc = t->volumeInc[0];
-            const int32_t vrInc = t->volumeInc[1];
-
-            // ALOGD("[1] %p: inc=%f, v0=%f, v1=%d, final=%f, count=%d",
-            //        t, vlInc/65536.0f, vl/65536.0f, t->volume[0],
-            //        (vl + vlInc*frameCount)/65536.0f, frameCount);
-
-            do {
-                *out++ += (vl >> 16) * (int32_t) *in++;
-                *out++ += (vr >> 16) * (int32_t) *in++;
-                vl += vlInc;
-                vr += vrInc;
-            } while (--frameCount);
-
-            t->prevVolume[0] = vl;
-            t->prevVolume[1] = vr;
-            t->adjustVolumeRamp(false);
-        }
-
-        // constant gain
-        else {
-            const uint32_t vrl = t->volumeRL;
-            do {
-                uint32_t rl = *reinterpret_cast<const uint32_t *>(in);
-                in += 2;
-                out[0] = mulAddRL(1, rl, vrl, out[0]);
-                out[1] = mulAddRL(0, rl, vrl, out[1]);
-                out += 2;
-            } while (--frameCount);
-        }
-    }
-    t->in = in;
-}
-
-void AudioMixer::track__16BitsMono(track_t* t, int32_t* out, size_t frameCount,
-        int32_t* temp __unused, int32_t* aux)
-{
-    ALOGVV("track__16BitsMono\n");
-    const int16_t *in = static_cast<int16_t const *>(t->in);
-
-    if (CC_UNLIKELY(aux != NULL)) {
-        // ramp gain
-        if (CC_UNLIKELY(t->volumeInc[0]|t->volumeInc[1]|t->auxInc)) {
-            int32_t vl = t->prevVolume[0];
-            int32_t vr = t->prevVolume[1];
-            int32_t va = t->prevAuxLevel;
-            const int32_t vlInc = t->volumeInc[0];
-            const int32_t vrInc = t->volumeInc[1];
-            const int32_t vaInc = t->auxInc;
-
-            // ALOGD("[2] %p: inc=%f, v0=%f, v1=%d, final=%f, count=%d",
-            //         t, vlInc/65536.0f, vl/65536.0f, t->volume[0],
-            //         (vl + vlInc*frameCount)/65536.0f, frameCount);
-
-            do {
-                int32_t l = *in++;
-                *out++ += (vl >> 16) * l;
-                *out++ += (vr >> 16) * l;
-                *aux++ += (va >> 16) * l;
-                vl += vlInc;
-                vr += vrInc;
-                va += vaInc;
-            } while (--frameCount);
-
-            t->prevVolume[0] = vl;
-            t->prevVolume[1] = vr;
-            t->prevAuxLevel = va;
-            t->adjustVolumeRamp(true);
-        }
-        // constant gain
-        else {
-            const int16_t vl = t->volume[0];
-            const int16_t vr = t->volume[1];
-            const int16_t va = (int16_t)t->auxLevel;
-            do {
-                int16_t l = *in++;
-                out[0] = mulAdd(l, vl, out[0]);
-                out[1] = mulAdd(l, vr, out[1]);
-                out += 2;
-                aux[0] = mulAdd(l, va, aux[0]);
-                aux++;
-            } while (--frameCount);
-        }
-    } else {
-        // ramp gain
-        if (CC_UNLIKELY(t->volumeInc[0]|t->volumeInc[1])) {
-            int32_t vl = t->prevVolume[0];
-            int32_t vr = t->prevVolume[1];
-            const int32_t vlInc = t->volumeInc[0];
-            const int32_t vrInc = t->volumeInc[1];
-
-            // ALOGD("[2] %p: inc=%f, v0=%f, v1=%d, final=%f, count=%d",
-            //         t, vlInc/65536.0f, vl/65536.0f, t->volume[0],
-            //         (vl + vlInc*frameCount)/65536.0f, frameCount);
-
-            do {
-                int32_t l = *in++;
-                *out++ += (vl >> 16) * l;
-                *out++ += (vr >> 16) * l;
-                vl += vlInc;
-                vr += vrInc;
-            } while (--frameCount);
-
-            t->prevVolume[0] = vl;
-            t->prevVolume[1] = vr;
-            t->adjustVolumeRamp(false);
-        }
-        // constant gain
-        else {
-            const int16_t vl = t->volume[0];
-            const int16_t vr = t->volume[1];
-            do {
-                int16_t l = *in++;
-                out[0] = mulAdd(l, vl, out[0]);
-                out[1] = mulAdd(l, vr, out[1]);
-                out += 2;
-            } while (--frameCount);
-        }
-    }
-    t->in = in;
-}
-
-// no-op case
-void AudioMixer::process__nop(state_t* state)
-{
-    ALOGVV("process__nop\n");
-    uint32_t e0 = state->enabledTracks;
-    while (e0) {
-        // process by group of tracks with same output buffer to
-        // avoid multiple memset() on same buffer
-        uint32_t e1 = e0, e2 = e0;
-        int i = 31 - __builtin_clz(e1);
-        {
-            track_t& t1 = state->tracks[i];
-            e2 &= ~(1<<i);
-            while (e2) {
-                i = 31 - __builtin_clz(e2);
-                e2 &= ~(1<<i);
-                track_t& t2 = state->tracks[i];
-                if (CC_UNLIKELY(t2.mainBuffer != t1.mainBuffer)) {
-                    e1 &= ~(1<<i);
-                }
-            }
-            e0 &= ~(e1);
-
-            memset(t1.mainBuffer, 0, state->frameCount * t1.mMixerChannelCount
-                    * audio_bytes_per_sample(t1.mMixerFormat));
-        }
-
-        while (e1) {
-            i = 31 - __builtin_clz(e1);
-            e1 &= ~(1<<i);
-            {
-                track_t& t3 = state->tracks[i];
-                size_t outFrames = state->frameCount;
-                while (outFrames) {
-                    t3.buffer.frameCount = outFrames;
-                    t3.bufferProvider->getNextBuffer(&t3.buffer);
-                    if (t3.buffer.raw == NULL) break;
-                    outFrames -= t3.buffer.frameCount;
-                    t3.bufferProvider->releaseBuffer(&t3.buffer);
-                }
-            }
-        }
-    }
-}
-
-// generic code without resampling
-void AudioMixer::process__genericNoResampling(state_t* state)
-{
-    ALOGVV("process__genericNoResampling\n");
-    int32_t outTemp[BLOCKSIZE * MAX_NUM_CHANNELS] __attribute__((aligned(32)));
-
-    // acquire each track's buffer
-    uint32_t enabledTracks = state->enabledTracks;
-    uint32_t e0 = enabledTracks;
-    while (e0) {
-        const int i = 31 - __builtin_clz(e0);
-        e0 &= ~(1<<i);
-        track_t& t = state->tracks[i];
-        t.buffer.frameCount = state->frameCount;
-        t.bufferProvider->getNextBuffer(&t.buffer);
-        t.frameCount = t.buffer.frameCount;
-        t.in = t.buffer.raw;
-    }
-
-    e0 = enabledTracks;
-    while (e0) {
-        // process by group of tracks with same output buffer to
-        // optimize cache use
-        uint32_t e1 = e0, e2 = e0;
-        int j = 31 - __builtin_clz(e1);
-        track_t& t1 = state->tracks[j];
-        e2 &= ~(1<<j);
-        while (e2) {
-            j = 31 - __builtin_clz(e2);
-            e2 &= ~(1<<j);
-            track_t& t2 = state->tracks[j];
-            if (CC_UNLIKELY(t2.mainBuffer != t1.mainBuffer)) {
-                e1 &= ~(1<<j);
-            }
-        }
-        e0 &= ~(e1);
-        // this assumes output 16 bits stereo, no resampling
-        int32_t *out = t1.mainBuffer;
-        size_t numFrames = 0;
-        do {
-            memset(outTemp, 0, sizeof(outTemp));
-            e2 = e1;
-            while (e2) {
-                const int i = 31 - __builtin_clz(e2);
-                e2 &= ~(1<<i);
-                track_t& t = state->tracks[i];
-                size_t outFrames = BLOCKSIZE;
-                int32_t *aux = NULL;
-                if (CC_UNLIKELY(t.needs & NEEDS_AUX)) {
-                    aux = t.auxBuffer + numFrames;
-                }
-                while (outFrames) {
-                    // t.in == NULL can happen if the track was flushed just after having
-                    // been enabled for mixing.
-                   if (t.in == NULL) {
-                        enabledTracks &= ~(1<<i);
-                        e1 &= ~(1<<i);
-                        break;
-                    }
-                    size_t inFrames = (t.frameCount > outFrames)?outFrames:t.frameCount;
-                    if (inFrames > 0) {
-                        t.hook(&t, outTemp + (BLOCKSIZE - outFrames) * t.mMixerChannelCount,
-                                inFrames, state->resampleTemp, aux);
-                        t.frameCount -= inFrames;
-                        outFrames -= inFrames;
-                        if (CC_UNLIKELY(aux != NULL)) {
-                            aux += inFrames;
-                        }
-                    }
-                    if (t.frameCount == 0 && outFrames) {
-                        t.bufferProvider->releaseBuffer(&t.buffer);
-                        t.buffer.frameCount = (state->frameCount - numFrames) -
-                                (BLOCKSIZE - outFrames);
-                        t.bufferProvider->getNextBuffer(&t.buffer);
-                        t.in = t.buffer.raw;
-                        if (t.in == NULL) {
-                            enabledTracks &= ~(1<<i);
-                            e1 &= ~(1<<i);
-                            break;
-                        }
-                        t.frameCount = t.buffer.frameCount;
-                    }
-                }
-            }
-
-            convertMixerFormat(out, t1.mMixerFormat, outTemp, t1.mMixerInFormat,
-                    BLOCKSIZE * t1.mMixerChannelCount);
-            // TODO: fix ugly casting due to choice of out pointer type
-            out = reinterpret_cast<int32_t*>((uint8_t*)out
-                    + BLOCKSIZE * t1.mMixerChannelCount
-                        * audio_bytes_per_sample(t1.mMixerFormat));
-            numFrames += BLOCKSIZE;
-        } while (numFrames < state->frameCount);
-    }
-
-    // release each track's buffer
-    e0 = enabledTracks;
-    while (e0) {
-        const int i = 31 - __builtin_clz(e0);
-        e0 &= ~(1<<i);
-        track_t& t = state->tracks[i];
-        t.bufferProvider->releaseBuffer(&t.buffer);
-    }
-}
-
-
-// generic code with resampling
-void AudioMixer::process__genericResampling(state_t* state)
-{
-    ALOGVV("process__genericResampling\n");
-    // this const just means that local variable outTemp doesn't change
-    int32_t* const outTemp = state->outputTemp;
-    size_t numFrames = state->frameCount;
-
-    uint32_t e0 = state->enabledTracks;
-    while (e0) {
-        // process by group of tracks with same output buffer
-        // to optimize cache use
-        uint32_t e1 = e0, e2 = e0;
-        int j = 31 - __builtin_clz(e1);
-        track_t& t1 = state->tracks[j];
-        e2 &= ~(1<<j);
-        while (e2) {
-            j = 31 - __builtin_clz(e2);
-            e2 &= ~(1<<j);
-            track_t& t2 = state->tracks[j];
-            if (CC_UNLIKELY(t2.mainBuffer != t1.mainBuffer)) {
-                e1 &= ~(1<<j);
-            }
-        }
-        e0 &= ~(e1);
-        int32_t *out = t1.mainBuffer;
-        memset(outTemp, 0, sizeof(*outTemp) * t1.mMixerChannelCount * state->frameCount);
-        while (e1) {
-            const int i = 31 - __builtin_clz(e1);
-            e1 &= ~(1<<i);
-            track_t& t = state->tracks[i];
-            int32_t *aux = NULL;
-            if (CC_UNLIKELY(t.needs & NEEDS_AUX)) {
-                aux = t.auxBuffer;
-            }
-
-            // this is a little goofy, on the resampling case we don't
-            // acquire/release the buffers because it's done by
-            // the resampler.
-            if (t.needs & NEEDS_RESAMPLE) {
-                t.hook(&t, outTemp, numFrames, state->resampleTemp, aux);
-            } else {
-
-                size_t outFrames = 0;
-
-                while (outFrames < numFrames) {
-                    t.buffer.frameCount = numFrames - outFrames;
-                    t.bufferProvider->getNextBuffer(&t.buffer);
-                    t.in = t.buffer.raw;
-                    // t.in == NULL can happen if the track was flushed just after having
-                    // been enabled for mixing.
-                    if (t.in == NULL) break;
-
-                    if (CC_UNLIKELY(aux != NULL)) {
-                        aux += outFrames;
-                    }
-                    t.hook(&t, outTemp + outFrames * t.mMixerChannelCount, t.buffer.frameCount,
-                            state->resampleTemp, aux);
-                    outFrames += t.buffer.frameCount;
-                    t.bufferProvider->releaseBuffer(&t.buffer);
-                }
-            }
-        }
-        convertMixerFormat(out, t1.mMixerFormat,
-                outTemp, t1.mMixerInFormat, numFrames * t1.mMixerChannelCount);
-    }
-}
-
-// one track, 16 bits stereo without resampling is the most common case
-void AudioMixer::process__OneTrack16BitsStereoNoResampling(state_t* state)
-{
-    ALOGVV("process__OneTrack16BitsStereoNoResampling\n");
-    // This method is only called when state->enabledTracks has exactly
-    // one bit set.  The asserts below would verify this, but are commented out
-    // since the whole point of this method is to optimize performance.
-    //ALOG_ASSERT(0 != state->enabledTracks, "no tracks enabled");
-    const int i = 31 - __builtin_clz(state->enabledTracks);
-    //ALOG_ASSERT((1 << i) == state->enabledTracks, "more than 1 track enabled");
-    const track_t& t = state->tracks[i];
-
-    AudioBufferProvider::Buffer& b(t.buffer);
-
-    int32_t* out = t.mainBuffer;
-    float *fout = reinterpret_cast<float*>(out);
-    size_t numFrames = state->frameCount;
-
-    const int16_t vl = t.volume[0];
-    const int16_t vr = t.volume[1];
-    const uint32_t vrl = t.volumeRL;
-    while (numFrames) {
-        b.frameCount = numFrames;
-        t.bufferProvider->getNextBuffer(&b);
-        const int16_t *in = b.i16;
-
-        // in == NULL can happen if the track was flushed just after having
-        // been enabled for mixing.
-        if (in == NULL || (((uintptr_t)in) & 3)) {
-            if ( AUDIO_FORMAT_PCM_FLOAT == t.mMixerFormat ) {
-                 memset((char*)fout, 0, numFrames
-                         * t.mMixerChannelCount * audio_bytes_per_sample(t.mMixerFormat));
-            } else {
-                 memset((char*)out, 0, numFrames
-                         * t.mMixerChannelCount * audio_bytes_per_sample(t.mMixerFormat));
-            }
-            ALOGE_IF((((uintptr_t)in) & 3),
-                    "process__OneTrack16BitsStereoNoResampling: misaligned buffer"
-                    " %p track %d, channels %d, needs %08x, volume %08x vfl %f vfr %f",
-                    in, i, t.channelCount, t.needs, vrl, t.mVolume[0], t.mVolume[1]);
-            return;
-        }
-        size_t outFrames = b.frameCount;
-
-        switch (t.mMixerFormat) {
-        case AUDIO_FORMAT_PCM_FLOAT:
-            do {
-                uint32_t rl = *reinterpret_cast<const uint32_t *>(in);
-                in += 2;
-                int32_t l = mulRL(1, rl, vrl);
-                int32_t r = mulRL(0, rl, vrl);
-                *fout++ = float_from_q4_27(l);
-                *fout++ = float_from_q4_27(r);
-                // Note: In case of later int16_t sink output,
-                // conversion and clamping is done by memcpy_to_i16_from_float().
-            } while (--outFrames);
-            break;
-        case AUDIO_FORMAT_PCM_16_BIT:
-            if (CC_UNLIKELY(uint32_t(vl) > UNITY_GAIN_INT || uint32_t(vr) > UNITY_GAIN_INT)) {
-                // volume is boosted, so we might need to clamp even though
-                // we process only one track.
-                do {
-                    uint32_t rl = *reinterpret_cast<const uint32_t *>(in);
-                    in += 2;
-                    int32_t l = mulRL(1, rl, vrl) >> 12;
-                    int32_t r = mulRL(0, rl, vrl) >> 12;
-                    // clamping...
-                    l = clamp16(l);
-                    r = clamp16(r);
-                    *out++ = (r<<16) | (l & 0xFFFF);
-                } while (--outFrames);
-            } else {
-                do {
-                    uint32_t rl = *reinterpret_cast<const uint32_t *>(in);
-                    in += 2;
-                    int32_t l = mulRL(1, rl, vrl) >> 12;
-                    int32_t r = mulRL(0, rl, vrl) >> 12;
-                    *out++ = (r<<16) | (l & 0xFFFF);
-                } while (--outFrames);
-            }
-            break;
-        default:
-            LOG_ALWAYS_FATAL("bad mixer format: %d", t.mMixerFormat);
-        }
-        numFrames -= b.frameCount;
-        t.bufferProvider->releaseBuffer(&b);
-    }
-}
-
-/*static*/ pthread_once_t AudioMixer::sOnceControl = PTHREAD_ONCE_INIT;
-
-/*static*/ void AudioMixer::sInitRoutine()
-{
-    DownmixerBufferProvider::init(); // for the downmixer
-}
-
-/* TODO: consider whether this level of optimization is necessary.
- * Perhaps just stick with a single for loop.
- */
-
-// Needs to derive a compile time constant (constexpr).  Could be targeted to go
-// to a MONOVOL mixtype based on MAX_NUM_VOLUMES, but that's an unnecessary complication.
-#define MIXTYPE_MONOVOL(mixtype) ((mixtype) == MIXTYPE_MULTI ? MIXTYPE_MULTI_MONOVOL : \
-        (mixtype) == MIXTYPE_MULTI_SAVEONLY ? MIXTYPE_MULTI_SAVEONLY_MONOVOL : (mixtype))
-
-/* MIXTYPE     (see AudioMixerOps.h MIXTYPE_* enumeration)
- * TO: int32_t (Q4.27) or float
- * TI: int32_t (Q4.27) or int16_t (Q0.15) or float
- * TA: int32_t (Q4.27)
- */
-template <int MIXTYPE,
-        typename TO, typename TI, typename TV, typename TA, typename TAV>
-static void volumeRampMulti(uint32_t channels, TO* out, size_t frameCount,
-        const TI* in, TA* aux, TV *vol, const TV *volinc, TAV *vola, TAV volainc)
-{
-    switch (channels) {
-    case 1:
-        volumeRampMulti<MIXTYPE, 1>(out, frameCount, in, aux, vol, volinc, vola, volainc);
-        break;
-    case 2:
-        volumeRampMulti<MIXTYPE, 2>(out, frameCount, in, aux, vol, volinc, vola, volainc);
-        break;
-    case 3:
-        volumeRampMulti<MIXTYPE_MONOVOL(MIXTYPE), 3>(out,
-                frameCount, in, aux, vol, volinc, vola, volainc);
-        break;
-    case 4:
-        volumeRampMulti<MIXTYPE_MONOVOL(MIXTYPE), 4>(out,
-                frameCount, in, aux, vol, volinc, vola, volainc);
-        break;
-    case 5:
-        volumeRampMulti<MIXTYPE_MONOVOL(MIXTYPE), 5>(out,
-                frameCount, in, aux, vol, volinc, vola, volainc);
-        break;
-    case 6:
-        volumeRampMulti<MIXTYPE_MONOVOL(MIXTYPE), 6>(out,
-                frameCount, in, aux, vol, volinc, vola, volainc);
-        break;
-    case 7:
-        volumeRampMulti<MIXTYPE_MONOVOL(MIXTYPE), 7>(out,
-                frameCount, in, aux, vol, volinc, vola, volainc);
-        break;
-    case 8:
-        volumeRampMulti<MIXTYPE_MONOVOL(MIXTYPE), 8>(out,
-                frameCount, in, aux, vol, volinc, vola, volainc);
-        break;
-    }
-}
-
-/* MIXTYPE     (see AudioMixerOps.h MIXTYPE_* enumeration)
- * TO: int32_t (Q4.27) or float
- * TI: int32_t (Q4.27) or int16_t (Q0.15) or float
- * TA: int32_t (Q4.27)
- */
-template <int MIXTYPE,
-        typename TO, typename TI, typename TV, typename TA, typename TAV>
-static void volumeMulti(uint32_t channels, TO* out, size_t frameCount,
-        const TI* in, TA* aux, const TV *vol, TAV vola)
-{
-    switch (channels) {
-    case 1:
-        volumeMulti<MIXTYPE, 1>(out, frameCount, in, aux, vol, vola);
-        break;
-    case 2:
-        volumeMulti<MIXTYPE, 2>(out, frameCount, in, aux, vol, vola);
-        break;
-    case 3:
-        volumeMulti<MIXTYPE_MONOVOL(MIXTYPE), 3>(out, frameCount, in, aux, vol, vola);
-        break;
-    case 4:
-        volumeMulti<MIXTYPE_MONOVOL(MIXTYPE), 4>(out, frameCount, in, aux, vol, vola);
-        break;
-    case 5:
-        volumeMulti<MIXTYPE_MONOVOL(MIXTYPE), 5>(out, frameCount, in, aux, vol, vola);
-        break;
-    case 6:
-        volumeMulti<MIXTYPE_MONOVOL(MIXTYPE), 6>(out, frameCount, in, aux, vol, vola);
-        break;
-    case 7:
-        volumeMulti<MIXTYPE_MONOVOL(MIXTYPE), 7>(out, frameCount, in, aux, vol, vola);
-        break;
-    case 8:
-        volumeMulti<MIXTYPE_MONOVOL(MIXTYPE), 8>(out, frameCount, in, aux, vol, vola);
-        break;
-    }
-}
-
-/* MIXTYPE     (see AudioMixerOps.h MIXTYPE_* enumeration)
- * USEFLOATVOL (set to true if float volume is used)
- * ADJUSTVOL   (set to true if volume ramp parameters needs adjustment afterwards)
- * TO: int32_t (Q4.27) or float
- * TI: int32_t (Q4.27) or int16_t (Q0.15) or float
- * TA: int32_t (Q4.27)
- */
-template <int MIXTYPE, bool USEFLOATVOL, bool ADJUSTVOL,
-    typename TO, typename TI, typename TA>
-void AudioMixer::volumeMix(TO *out, size_t outFrames,
-        const TI *in, TA *aux, bool ramp, AudioMixer::track_t *t)
-{
-    if (USEFLOATVOL) {
-        if (ramp) {
-            volumeRampMulti<MIXTYPE>(t->mMixerChannelCount, out, outFrames, in, aux,
-                    t->mPrevVolume, t->mVolumeInc, &t->prevAuxLevel, t->auxInc);
-            if (ADJUSTVOL) {
-                t->adjustVolumeRamp(aux != NULL, true);
-            }
-        } else {
-            volumeMulti<MIXTYPE>(t->mMixerChannelCount, out, outFrames, in, aux,
-                    t->mVolume, t->auxLevel);
-        }
-    } else {
-        if (ramp) {
-            volumeRampMulti<MIXTYPE>(t->mMixerChannelCount, out, outFrames, in, aux,
-                    t->prevVolume, t->volumeInc, &t->prevAuxLevel, t->auxInc);
-            if (ADJUSTVOL) {
-                t->adjustVolumeRamp(aux != NULL);
-            }
-        } else {
-            volumeMulti<MIXTYPE>(t->mMixerChannelCount, out, outFrames, in, aux,
-                    t->volume, t->auxLevel);
-        }
-    }
-}
-
-/* This process hook is called when there is a single track without
- * aux buffer, volume ramp, or resampling.
- * TODO: Update the hook selection: this can properly handle aux and ramp.
- *
- * MIXTYPE     (see AudioMixerOps.h MIXTYPE_* enumeration)
- * TO: int32_t (Q4.27) or float
- * TI: int32_t (Q4.27) or int16_t (Q0.15) or float
- * TA: int32_t (Q4.27)
- */
-template <int MIXTYPE, typename TO, typename TI, typename TA>
-void AudioMixer::process_NoResampleOneTrack(state_t* state)
-{
-    ALOGVV("process_NoResampleOneTrack\n");
-    // CLZ is faster than CTZ on ARM, though really not sure if true after 31 - clz.
-    const int i = 31 - __builtin_clz(state->enabledTracks);
-    ALOG_ASSERT((1 << i) == state->enabledTracks, "more than 1 track enabled");
-    track_t *t = &state->tracks[i];
-    const uint32_t channels = t->mMixerChannelCount;
-    TO* out = reinterpret_cast<TO*>(t->mainBuffer);
-    TA* aux = reinterpret_cast<TA*>(t->auxBuffer);
-    const bool ramp = t->needsRamp();
-
-    for (size_t numFrames = state->frameCount; numFrames; ) {
-        AudioBufferProvider::Buffer& b(t->buffer);
-        // get input buffer
-        b.frameCount = numFrames;
-        t->bufferProvider->getNextBuffer(&b);
-        const TI *in = reinterpret_cast<TI*>(b.raw);
-
-        // in == NULL can happen if the track was flushed just after having
-        // been enabled for mixing.
-        if (in == NULL || (((uintptr_t)in) & 3)) {
-            memset(out, 0, numFrames
-                    * channels * audio_bytes_per_sample(t->mMixerFormat));
-            ALOGE_IF((((uintptr_t)in) & 3), "process_NoResampleOneTrack: bus error: "
-                    "buffer %p track %p, channels %d, needs %#x",
-                    in, t, t->channelCount, t->needs);
-            return;
-        }
-
-        const size_t outFrames = b.frameCount;
-        volumeMix<MIXTYPE, is_same<TI, float>::value, false> (
-                out, outFrames, in, aux, ramp, t);
-
-        out += outFrames * channels;
-        if (aux != NULL) {
-            aux += channels;
-        }
-        numFrames -= b.frameCount;
-
-        // release buffer
-        t->bufferProvider->releaseBuffer(&b);
-    }
-    if (ramp) {
-        t->adjustVolumeRamp(aux != NULL, is_same<TI, float>::value);
-    }
-}
-
-/* This track hook is called to do resampling then mixing,
- * pulling from the track's upstream AudioBufferProvider.
- *
- * MIXTYPE     (see AudioMixerOps.h MIXTYPE_* enumeration)
- * TO: int32_t (Q4.27) or float
- * TI: int32_t (Q4.27) or int16_t (Q0.15) or float
- * TA: int32_t (Q4.27)
- */
-template <int MIXTYPE, typename TO, typename TI, typename TA>
-void AudioMixer::track__Resample(track_t* t, TO* out, size_t outFrameCount, TO* temp, TA* aux)
-{
-    ALOGVV("track__Resample\n");
-    t->resampler->setSampleRate(t->sampleRate);
-    const bool ramp = t->needsRamp();
-    if (ramp || aux != NULL) {
-        // if ramp:        resample with unity gain to temp buffer and scale/mix in 2nd step.
-        // if aux != NULL: resample with unity gain to temp buffer then apply send level.
-
-        t->resampler->setVolume(UNITY_GAIN_FLOAT, UNITY_GAIN_FLOAT);
-        memset(temp, 0, outFrameCount * t->mMixerChannelCount * sizeof(TO));
-        t->resampler->resample((int32_t*)temp, outFrameCount, t->bufferProvider);
-
-        volumeMix<MIXTYPE, is_same<TI, float>::value, true>(
-                out, outFrameCount, temp, aux, ramp, t);
-
-    } else { // constant volume gain
-        t->resampler->setVolume(t->mVolume[0], t->mVolume[1]);
-        t->resampler->resample((int32_t*)out, outFrameCount, t->bufferProvider);
-    }
-}
-
-/* This track hook is called to mix a track, when no resampling is required.
- * The input buffer should be present in t->in.
- *
- * MIXTYPE     (see AudioMixerOps.h MIXTYPE_* enumeration)
- * TO: int32_t (Q4.27) or float
- * TI: int32_t (Q4.27) or int16_t (Q0.15) or float
- * TA: int32_t (Q4.27)
- */
-template <int MIXTYPE, typename TO, typename TI, typename TA>
-void AudioMixer::track__NoResample(track_t* t, TO* out, size_t frameCount,
-        TO* temp __unused, TA* aux)
-{
-    ALOGVV("track__NoResample\n");
-    const TI *in = static_cast<const TI *>(t->in);
-
-    volumeMix<MIXTYPE, is_same<TI, float>::value, true>(
-            out, frameCount, in, aux, t->needsRamp(), t);
-
-    // MIXTYPE_MONOEXPAND reads a single input channel and expands to NCHAN output channels.
-    // MIXTYPE_MULTI reads NCHAN input channels and places to NCHAN output channels.
-    in += (MIXTYPE == MIXTYPE_MONOEXPAND) ? frameCount : frameCount * t->mMixerChannelCount;
-    t->in = in;
-}
-
-/* The Mixer engine generates either int32_t (Q4_27) or float data.
- * We use this function to convert the engine buffers
- * to the desired mixer output format, either int16_t (Q.15) or float.
- */
-void AudioMixer::convertMixerFormat(void *out, audio_format_t mixerOutFormat,
-        void *in, audio_format_t mixerInFormat, size_t sampleCount)
-{
-    switch (mixerInFormat) {
-    case AUDIO_FORMAT_PCM_FLOAT:
-        switch (mixerOutFormat) {
-        case AUDIO_FORMAT_PCM_FLOAT:
-            memcpy(out, in, sampleCount * sizeof(float)); // MEMCPY. TODO optimize out
-            break;
-        case AUDIO_FORMAT_PCM_16_BIT:
-            memcpy_to_i16_from_float((int16_t*)out, (float*)in, sampleCount);
-            break;
-        default:
-            LOG_ALWAYS_FATAL("bad mixerOutFormat: %#x", mixerOutFormat);
-            break;
-        }
-        break;
-    case AUDIO_FORMAT_PCM_16_BIT:
-        switch (mixerOutFormat) {
-        case AUDIO_FORMAT_PCM_FLOAT:
-            memcpy_to_float_from_q4_27((float*)out, (int32_t*)in, sampleCount);
-            break;
-        case AUDIO_FORMAT_PCM_16_BIT:
-            // two int16_t are produced per iteration
-            ditherAndClamp((int32_t*)out, (int32_t*)in, sampleCount >> 1);
-            break;
-        default:
-            LOG_ALWAYS_FATAL("bad mixerOutFormat: %#x", mixerOutFormat);
-            break;
-        }
-        break;
-    default:
-        LOG_ALWAYS_FATAL("bad mixerInFormat: %#x", mixerInFormat);
-        break;
-    }
-}
-
-/* Returns the proper track hook to use for mixing the track into the output buffer.
- */
-AudioMixer::hook_t AudioMixer::getTrackHook(int trackType, uint32_t channelCount,
-        audio_format_t mixerInFormat, audio_format_t mixerOutFormat __unused)
-{
-    if (!kUseNewMixer && channelCount == FCC_2 && mixerInFormat == AUDIO_FORMAT_PCM_16_BIT) {
-        switch (trackType) {
-        case TRACKTYPE_NOP:
-            return track__nop;
-        case TRACKTYPE_RESAMPLE:
-            return track__genericResample;
-        case TRACKTYPE_NORESAMPLEMONO:
-            return track__16BitsMono;
-        case TRACKTYPE_NORESAMPLE:
-            return track__16BitsStereo;
-        default:
-            LOG_ALWAYS_FATAL("bad trackType: %d", trackType);
-            break;
-        }
-    }
-    LOG_ALWAYS_FATAL_IF(channelCount > MAX_NUM_CHANNELS);
-    switch (trackType) {
-    case TRACKTYPE_NOP:
-        return track__nop;
-    case TRACKTYPE_RESAMPLE:
-        switch (mixerInFormat) {
-        case AUDIO_FORMAT_PCM_FLOAT:
-            return (AudioMixer::hook_t)
-                    track__Resample<MIXTYPE_MULTI, float /*TO*/, float /*TI*/, int32_t /*TA*/>;
-        case AUDIO_FORMAT_PCM_16_BIT:
-            return (AudioMixer::hook_t)\
-                    track__Resample<MIXTYPE_MULTI, int32_t, int16_t, int32_t>;
-        default:
-            LOG_ALWAYS_FATAL("bad mixerInFormat: %#x", mixerInFormat);
-            break;
-        }
-        break;
-    case TRACKTYPE_NORESAMPLEMONO:
-        switch (mixerInFormat) {
-        case AUDIO_FORMAT_PCM_FLOAT:
-            return (AudioMixer::hook_t)
-                    track__NoResample<MIXTYPE_MONOEXPAND, float, float, int32_t>;
-        case AUDIO_FORMAT_PCM_16_BIT:
-            return (AudioMixer::hook_t)
-                    track__NoResample<MIXTYPE_MONOEXPAND, int32_t, int16_t, int32_t>;
-        default:
-            LOG_ALWAYS_FATAL("bad mixerInFormat: %#x", mixerInFormat);
-            break;
-        }
-        break;
-    case TRACKTYPE_NORESAMPLE:
-        switch (mixerInFormat) {
-        case AUDIO_FORMAT_PCM_FLOAT:
-            return (AudioMixer::hook_t)
-                    track__NoResample<MIXTYPE_MULTI, float, float, int32_t>;
-        case AUDIO_FORMAT_PCM_16_BIT:
-            return (AudioMixer::hook_t)
-                    track__NoResample<MIXTYPE_MULTI, int32_t, int16_t, int32_t>;
-        default:
-            LOG_ALWAYS_FATAL("bad mixerInFormat: %#x", mixerInFormat);
-            break;
-        }
-        break;
-    default:
-        LOG_ALWAYS_FATAL("bad trackType: %d", trackType);
-        break;
-    }
-    return NULL;
-}
-
-/* Returns the proper process hook for mixing tracks. Currently works only for
- * PROCESSTYPE_NORESAMPLEONETRACK, a mix involving one track, no resampling.
- *
- * TODO: Due to the special mixing considerations of duplicating to
- * a stereo output track, the input track cannot be MONO.  This should be
- * prevented by the caller.
- */
-AudioMixer::process_hook_t AudioMixer::getProcessHook(int processType, uint32_t channelCount,
-        audio_format_t mixerInFormat, audio_format_t mixerOutFormat)
-{
-    if (processType != PROCESSTYPE_NORESAMPLEONETRACK) { // Only NORESAMPLEONETRACK
-        LOG_ALWAYS_FATAL("bad processType: %d", processType);
-        return NULL;
-    }
-    if (!kUseNewMixer && channelCount == FCC_2 && mixerInFormat == AUDIO_FORMAT_PCM_16_BIT) {
-        return process__OneTrack16BitsStereoNoResampling;
-    }
-    LOG_ALWAYS_FATAL_IF(channelCount > MAX_NUM_CHANNELS);
-    switch (mixerInFormat) {
-    case AUDIO_FORMAT_PCM_FLOAT:
-        switch (mixerOutFormat) {
-        case AUDIO_FORMAT_PCM_FLOAT:
-            return process_NoResampleOneTrack<MIXTYPE_MULTI_SAVEONLY,
-                    float /*TO*/, float /*TI*/, int32_t /*TA*/>;
-        case AUDIO_FORMAT_PCM_16_BIT:
-            return process_NoResampleOneTrack<MIXTYPE_MULTI_SAVEONLY,
-                    int16_t, float, int32_t>;
-        default:
-            LOG_ALWAYS_FATAL("bad mixerOutFormat: %#x", mixerOutFormat);
-            break;
-        }
-        break;
-    case AUDIO_FORMAT_PCM_16_BIT:
-        switch (mixerOutFormat) {
-        case AUDIO_FORMAT_PCM_FLOAT:
-            return process_NoResampleOneTrack<MIXTYPE_MULTI_SAVEONLY,
-                    float, int16_t, int32_t>;
-        case AUDIO_FORMAT_PCM_16_BIT:
-            return process_NoResampleOneTrack<MIXTYPE_MULTI_SAVEONLY,
-                    int16_t, int16_t, int32_t>;
-        default:
-            LOG_ALWAYS_FATAL("bad mixerOutFormat: %#x", mixerOutFormat);
-            break;
-        }
-        break;
-    default:
-        LOG_ALWAYS_FATAL("bad mixerInFormat: %#x", mixerInFormat);
-        break;
-    }
-    return NULL;
-}
-
-// ----------------------------------------------------------------------------
-} // namespace android
diff --git a/services/audioflinger/AudioMixer.h b/services/audioflinger/AudioMixer.h
deleted file mode 100644
index e788ac3..0000000
--- a/services/audioflinger/AudioMixer.h
+++ /dev/null
@@ -1,391 +0,0 @@
-/*
-**
-** Copyright 2007, The Android Open Source Project
-**
-** Licensed under the Apache License, Version 2.0 (the "License");
-** you may not use this file except in compliance with the License.
-** You may obtain a copy of the License at
-**
-**     http://www.apache.org/licenses/LICENSE-2.0
-**
-** Unless required by applicable law or agreed to in writing, software
-** distributed under the License is distributed on an "AS IS" BASIS,
-** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-** See the License for the specific language governing permissions and
-** limitations under the License.
-*/
-
-#ifndef ANDROID_AUDIO_MIXER_H
-#define ANDROID_AUDIO_MIXER_H
-
-#include <stdint.h>
-#include <sys/types.h>
-
-#include <hardware/audio_effect.h>
-#include <media/AudioBufferProvider.h>
-#include <media/AudioResamplerPublic.h>
-#include <media/nbaio/NBLog.h>
-#include <system/audio.h>
-#include <utils/Compat.h>
-#include <utils/threads.h>
-
-#include "AudioResampler.h"
-#include "BufferProviders.h"
-
-// FIXME This is actually unity gain, which might not be max in future, expressed in U.12
-#define MAX_GAIN_INT AudioMixer::UNITY_GAIN_INT
-
-namespace android {
-
-// ----------------------------------------------------------------------------
-
-class AudioMixer
-{
-public:
-                            AudioMixer(size_t frameCount, uint32_t sampleRate,
-                                       uint32_t maxNumTracks = MAX_NUM_TRACKS);
-
-    /*virtual*/             ~AudioMixer();  // non-virtual saves a v-table, restore if sub-classed
-
-
-    // This mixer has a hard-coded upper limit of 32 active track inputs.
-    // Adding support for > 32 tracks would require more than simply changing this value.
-    static const uint32_t MAX_NUM_TRACKS = 32;
-    // maximum number of channels supported by the mixer
-
-    // This mixer has a hard-coded upper limit of 8 channels for output.
-    static const uint32_t MAX_NUM_CHANNELS = 8;
-    static const uint32_t MAX_NUM_VOLUMES = 2; // stereo volume only
-    // maximum number of channels supported for the content
-    static const uint32_t MAX_NUM_CHANNELS_TO_DOWNMIX = AUDIO_CHANNEL_COUNT_MAX;
-
-    static const uint16_t UNITY_GAIN_INT = 0x1000;
-    static const CONSTEXPR float UNITY_GAIN_FLOAT = 1.0f;
-
-    enum { // names
-
-        // track names (MAX_NUM_TRACKS units)
-        TRACK0          = 0x1000,
-
-        // 0x2000 is unused
-
-        // setParameter targets
-        TRACK           = 0x3000,
-        RESAMPLE        = 0x3001,
-        RAMP_VOLUME     = 0x3002, // ramp to new volume
-        VOLUME          = 0x3003, // don't ramp
-        TIMESTRETCH     = 0x3004,
-
-        // set Parameter names
-        // for target TRACK
-        CHANNEL_MASK    = 0x4000,
-        FORMAT          = 0x4001,
-        MAIN_BUFFER     = 0x4002,
-        AUX_BUFFER      = 0x4003,
-        DOWNMIX_TYPE    = 0X4004,
-        MIXER_FORMAT    = 0x4005, // AUDIO_FORMAT_PCM_(FLOAT|16_BIT)
-        MIXER_CHANNEL_MASK = 0x4006, // Channel mask for mixer output
-        // for target RESAMPLE
-        SAMPLE_RATE     = 0x4100, // Configure sample rate conversion on this track name;
-                                  // parameter 'value' is the new sample rate in Hz.
-                                  // Only creates a sample rate converter the first time that
-                                  // the track sample rate is different from the mix sample rate.
-                                  // If the new sample rate is the same as the mix sample rate,
-                                  // and a sample rate converter already exists,
-                                  // then the sample rate converter remains present but is a no-op.
-        RESET           = 0x4101, // Reset sample rate converter without changing sample rate.
-                                  // This clears out the resampler's input buffer.
-        REMOVE          = 0x4102, // Remove the sample rate converter on this track name;
-                                  // the track is restored to the mix sample rate.
-        // for target RAMP_VOLUME and VOLUME (8 channels max)
-        // FIXME use float for these 3 to improve the dynamic range
-        VOLUME0         = 0x4200,
-        VOLUME1         = 0x4201,
-        AUXLEVEL        = 0x4210,
-        // for target TIMESTRETCH
-        PLAYBACK_RATE   = 0x4300, // Configure timestretch on this track name;
-                                  // parameter 'value' is a pointer to the new playback rate.
-    };
-
-
-    // For all APIs with "name": TRACK0 <= name < TRACK0 + MAX_NUM_TRACKS
-
-    // Allocate a track name.  Returns new track name if successful, -1 on failure.
-    // The failure could be because of an invalid channelMask or format, or that
-    // the track capacity of the mixer is exceeded.
-    int         getTrackName(audio_channel_mask_t channelMask,
-                             audio_format_t format, int sessionId);
-
-    // Free an allocated track by name
-    void        deleteTrackName(int name);
-
-    // Enable or disable an allocated track by name
-    void        enable(int name);
-    void        disable(int name);
-
-    void        setParameter(int name, int target, int param, void *value);
-
-    void        setBufferProvider(int name, AudioBufferProvider* bufferProvider);
-    void        process();
-
-    uint32_t    trackNames() const { return mTrackNames; }
-
-    size_t      getUnreleasedFrames(int name) const;
-
-    static inline bool isValidPcmTrackFormat(audio_format_t format) {
-        switch (format) {
-        case AUDIO_FORMAT_PCM_8_BIT:
-        case AUDIO_FORMAT_PCM_16_BIT:
-        case AUDIO_FORMAT_PCM_24_BIT_PACKED:
-        case AUDIO_FORMAT_PCM_32_BIT:
-        case AUDIO_FORMAT_PCM_FLOAT:
-            return true;
-        default:
-            return false;
-        }
-    }
-
-private:
-
-    enum {
-        // FIXME this representation permits up to 8 channels
-        NEEDS_CHANNEL_COUNT__MASK   = 0x00000007,
-    };
-
-    enum {
-        NEEDS_CHANNEL_1             = 0x00000000,   // mono
-        NEEDS_CHANNEL_2             = 0x00000001,   // stereo
-
-        // sample format is not explicitly specified, and is assumed to be AUDIO_FORMAT_PCM_16_BIT
-
-        NEEDS_MUTE                  = 0x00000100,
-        NEEDS_RESAMPLE              = 0x00001000,
-        NEEDS_AUX                   = 0x00010000,
-    };
-
-    struct state_t;
-    struct track_t;
-
-    typedef void (*hook_t)(track_t* t, int32_t* output, size_t numOutFrames, int32_t* temp,
-                           int32_t* aux);
-    static const int BLOCKSIZE = 16; // 4 cache lines
-
-    struct track_t {
-        uint32_t    needs;
-
-        // TODO: Eventually remove legacy integer volume settings
-        union {
-        int16_t     volume[MAX_NUM_VOLUMES]; // U4.12 fixed point (top bit should be zero)
-        int32_t     volumeRL;
-        };
-
-        int32_t     prevVolume[MAX_NUM_VOLUMES];
-
-        // 16-byte boundary
-
-        int32_t     volumeInc[MAX_NUM_VOLUMES];
-        int32_t     auxInc;
-        int32_t     prevAuxLevel;
-
-        // 16-byte boundary
-
-        int16_t     auxLevel;       // 0 <= auxLevel <= MAX_GAIN_INT, but signed for mul performance
-        uint16_t    frameCount;
-
-        uint8_t     channelCount;   // 1 or 2, redundant with (needs & NEEDS_CHANNEL_COUNT__MASK)
-        uint8_t     unused_padding; // formerly format, was always 16
-        uint16_t    enabled;        // actually bool
-        audio_channel_mask_t channelMask;
-
-        // actual buffer provider used by the track hooks, see DownmixerBufferProvider below
-        //  for how the Track buffer provider is wrapped by another one when dowmixing is required
-        AudioBufferProvider*                bufferProvider;
-
-        // 16-byte boundary
-
-        mutable AudioBufferProvider::Buffer buffer; // 8 bytes
-
-        hook_t      hook;
-        const void* in;             // current location in buffer
-
-        // 16-byte boundary
-
-        AudioResampler*     resampler;
-        uint32_t            sampleRate;
-        int32_t*           mainBuffer;
-        int32_t*           auxBuffer;
-
-        // 16-byte boundary
-
-        /* Buffer providers are constructed to translate the track input data as needed.
-         *
-         * TODO: perhaps make a single PlaybackConverterProvider class to move
-         * all pre-mixer track buffer conversions outside the AudioMixer class.
-         *
-         * 1) mInputBufferProvider: The AudioTrack buffer provider.
-         * 2) mReformatBufferProvider: If not NULL, performs the audio reformat to
-         *    match either mMixerInFormat or mDownmixRequiresFormat, if the downmixer
-         *    requires reformat. For example, it may convert floating point input to
-         *    PCM_16_bit if that's required by the downmixer.
-         * 3) downmixerBufferProvider: If not NULL, performs the channel remixing to match
-         *    the number of channels required by the mixer sink.
-         * 4) mPostDownmixReformatBufferProvider: If not NULL, performs reformatting from
-         *    the downmixer requirements to the mixer engine input requirements.
-         * 5) mTimestretchBufferProvider: Adds timestretching for playback rate
-         */
-        AudioBufferProvider*     mInputBufferProvider;    // externally provided buffer provider.
-        PassthruBufferProvider*  mReformatBufferProvider; // provider wrapper for reformatting.
-        PassthruBufferProvider*  downmixerBufferProvider; // wrapper for channel conversion.
-        PassthruBufferProvider*  mPostDownmixReformatBufferProvider;
-        PassthruBufferProvider*  mTimestretchBufferProvider;
-
-        int32_t     sessionId;
-
-        audio_format_t mMixerFormat;     // output mix format: AUDIO_FORMAT_PCM_(FLOAT|16_BIT)
-        audio_format_t mFormat;          // input track format
-        audio_format_t mMixerInFormat;   // mix internal format AUDIO_FORMAT_PCM_(FLOAT|16_BIT)
-                                         // each track must be converted to this format.
-        audio_format_t mDownmixRequiresFormat;  // required downmixer format
-                                                // AUDIO_FORMAT_PCM_16_BIT if 16 bit necessary
-                                                // AUDIO_FORMAT_INVALID if no required format
-
-        float          mVolume[MAX_NUM_VOLUMES];     // floating point set volume
-        float          mPrevVolume[MAX_NUM_VOLUMES]; // floating point previous volume
-        float          mVolumeInc[MAX_NUM_VOLUMES];  // floating point volume increment
-
-        float          mAuxLevel;                     // floating point set aux level
-        float          mPrevAuxLevel;                 // floating point prev aux level
-        float          mAuxInc;                       // floating point aux increment
-
-        audio_channel_mask_t mMixerChannelMask;
-        uint32_t             mMixerChannelCount;
-
-        AudioPlaybackRate    mPlaybackRate;
-
-        bool        needsRamp() { return (volumeInc[0] | volumeInc[1] | auxInc) != 0; }
-        bool        setResampler(uint32_t trackSampleRate, uint32_t devSampleRate);
-        bool        doesResample() const { return resampler != NULL; }
-        void        resetResampler() { if (resampler != NULL) resampler->reset(); }
-        void        adjustVolumeRamp(bool aux, bool useFloat = false);
-        size_t      getUnreleasedFrames() const { return resampler != NULL ?
-                                                    resampler->getUnreleasedFrames() : 0; };
-
-        status_t    prepareForDownmix();
-        void        unprepareForDownmix();
-        status_t    prepareForReformat();
-        void        unprepareForReformat();
-        bool        setPlaybackRate(const AudioPlaybackRate &playbackRate);
-        void        reconfigureBufferProviders();
-    };
-
-    typedef void (*process_hook_t)(state_t* state);
-
-    // pad to 32-bytes to fill cache line
-    struct state_t {
-        uint32_t        enabledTracks;
-        uint32_t        needsChanged;
-        size_t          frameCount;
-        process_hook_t  hook;   // one of process__*, never NULL
-        int32_t         *outputTemp;
-        int32_t         *resampleTemp;
-        NBLog::Writer*  mLog;
-        int32_t         reserved[1];
-        // FIXME allocate dynamically to save some memory when maxNumTracks < MAX_NUM_TRACKS
-        track_t         tracks[MAX_NUM_TRACKS] __attribute__((aligned(32)));
-    };
-
-    // bitmask of allocated track names, where bit 0 corresponds to TRACK0 etc.
-    uint32_t        mTrackNames;
-
-    // bitmask of configured track names; ~0 if maxNumTracks == MAX_NUM_TRACKS,
-    // but will have fewer bits set if maxNumTracks < MAX_NUM_TRACKS
-    const uint32_t  mConfiguredNames;
-
-    const uint32_t  mSampleRate;
-
-    NBLog::Writer   mDummyLog;
-public:
-    void            setLog(NBLog::Writer* log);
-private:
-    state_t         mState __attribute__((aligned(32)));
-
-    // Call after changing either the enabled status of a track, or parameters of an enabled track.
-    // OK to call more often than that, but unnecessary.
-    void invalidateState(uint32_t mask);
-
-    bool setChannelMasks(int name,
-            audio_channel_mask_t trackChannelMask, audio_channel_mask_t mixerChannelMask);
-
-    static void track__genericResample(track_t* t, int32_t* out, size_t numFrames, int32_t* temp,
-            int32_t* aux);
-    static void track__nop(track_t* t, int32_t* out, size_t numFrames, int32_t* temp, int32_t* aux);
-    static void track__16BitsStereo(track_t* t, int32_t* out, size_t numFrames, int32_t* temp,
-            int32_t* aux);
-    static void track__16BitsMono(track_t* t, int32_t* out, size_t numFrames, int32_t* temp,
-            int32_t* aux);
-    static void volumeRampStereo(track_t* t, int32_t* out, size_t frameCount, int32_t* temp,
-            int32_t* aux);
-    static void volumeStereo(track_t* t, int32_t* out, size_t frameCount, int32_t* temp,
-            int32_t* aux);
-
-    static void process__validate(state_t* state);
-    static void process__nop(state_t* state);
-    static void process__genericNoResampling(state_t* state);
-    static void process__genericResampling(state_t* state);
-    static void process__OneTrack16BitsStereoNoResampling(state_t* state);
-
-    static pthread_once_t   sOnceControl;
-    static void             sInitRoutine();
-
-    /* multi-format volume mixing function (calls template functions
-     * in AudioMixerOps.h).  The template parameters are as follows:
-     *
-     *   MIXTYPE     (see AudioMixerOps.h MIXTYPE_* enumeration)
-     *   USEFLOATVOL (set to true if float volume is used)
-     *   ADJUSTVOL   (set to true if volume ramp parameters needs adjustment afterwards)
-     *   TO: int32_t (Q4.27) or float
-     *   TI: int32_t (Q4.27) or int16_t (Q0.15) or float
-     *   TA: int32_t (Q4.27)
-     */
-    template <int MIXTYPE, bool USEFLOATVOL, bool ADJUSTVOL,
-        typename TO, typename TI, typename TA>
-    static void volumeMix(TO *out, size_t outFrames,
-            const TI *in, TA *aux, bool ramp, AudioMixer::track_t *t);
-
-    // multi-format process hooks
-    template <int MIXTYPE, typename TO, typename TI, typename TA>
-    static void process_NoResampleOneTrack(state_t* state);
-
-    // multi-format track hooks
-    template <int MIXTYPE, typename TO, typename TI, typename TA>
-    static void track__Resample(track_t* t, TO* out, size_t frameCount,
-            TO* temp __unused, TA* aux);
-    template <int MIXTYPE, typename TO, typename TI, typename TA>
-    static void track__NoResample(track_t* t, TO* out, size_t frameCount,
-            TO* temp __unused, TA* aux);
-
-    static void convertMixerFormat(void *out, audio_format_t mixerOutFormat,
-            void *in, audio_format_t mixerInFormat, size_t sampleCount);
-
-    // hook types
-    enum {
-        PROCESSTYPE_NORESAMPLEONETRACK,
-    };
-    enum {
-        TRACKTYPE_NOP,
-        TRACKTYPE_RESAMPLE,
-        TRACKTYPE_NORESAMPLE,
-        TRACKTYPE_NORESAMPLEMONO,
-    };
-
-    // functions for determining the proper process and track hooks.
-    static process_hook_t getProcessHook(int processType, uint32_t channelCount,
-            audio_format_t mixerInFormat, audio_format_t mixerOutFormat);
-    static hook_t getTrackHook(int trackType, uint32_t channelCount,
-            audio_format_t mixerInFormat, audio_format_t mixerOutFormat);
-};
-
-// ----------------------------------------------------------------------------
-} // namespace android
-
-#endif // ANDROID_AUDIO_MIXER_H
diff --git a/services/audioflinger/AudioResampler.cpp b/services/audioflinger/AudioResampler.cpp
deleted file mode 100644
index 8b7259d..0000000
--- a/services/audioflinger/AudioResampler.cpp
+++ /dev/null
@@ -1,787 +0,0 @@
-/*
- * Copyright (C) 2007 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "AudioResampler"
-//#define LOG_NDEBUG 0
-
-#include <pthread.h>
-#include <stdint.h>
-#include <stdlib.h>
-#include <sys/types.h>
-
-#include <cutils/properties.h>
-#include <log/log.h>
-
-#include <audio_utils/primitives.h>
-#include "AudioResampler.h"
-#include "AudioResamplerSinc.h"
-#include "AudioResamplerCubic.h"
-#include "AudioResamplerDyn.h"
-
-#ifdef __arm__
-    // bug 13102576
-    //#define ASM_ARM_RESAMP1 // enable asm optimisation for ResamplerOrder1
-#endif
-
-namespace android {
-
-// ----------------------------------------------------------------------------
-
-class AudioResamplerOrder1 : public AudioResampler {
-public:
-    AudioResamplerOrder1(int inChannelCount, int32_t sampleRate) :
-        AudioResampler(inChannelCount, sampleRate, LOW_QUALITY), mX0L(0), mX0R(0) {
-    }
-    virtual size_t resample(int32_t* out, size_t outFrameCount,
-            AudioBufferProvider* provider);
-private:
-    // number of bits used in interpolation multiply - 15 bits avoids overflow
-    static const int kNumInterpBits = 15;
-
-    // bits to shift the phase fraction down to avoid overflow
-    static const int kPreInterpShift = kNumPhaseBits - kNumInterpBits;
-
-    void init() {}
-    size_t resampleMono16(int32_t* out, size_t outFrameCount,
-            AudioBufferProvider* provider);
-    size_t resampleStereo16(int32_t* out, size_t outFrameCount,
-            AudioBufferProvider* provider);
-#ifdef ASM_ARM_RESAMP1  // asm optimisation for ResamplerOrder1
-    void AsmMono16Loop(int16_t *in, int32_t* maxOutPt, int32_t maxInIdx,
-            size_t &outputIndex, int32_t* out, size_t &inputIndex, int32_t vl, int32_t vr,
-            uint32_t &phaseFraction, uint32_t phaseIncrement);
-    void AsmStereo16Loop(int16_t *in, int32_t* maxOutPt, int32_t maxInIdx,
-            size_t &outputIndex, int32_t* out, size_t &inputIndex, int32_t vl, int32_t vr,
-            uint32_t &phaseFraction, uint32_t phaseIncrement);
-#endif  // ASM_ARM_RESAMP1
-
-    static inline int32_t Interp(int32_t x0, int32_t x1, uint32_t f) {
-        return x0 + (((x1 - x0) * (int32_t)(f >> kPreInterpShift)) >> kNumInterpBits);
-    }
-    static inline void Advance(size_t* index, uint32_t* frac, uint32_t inc) {
-        *frac += inc;
-        *index += (size_t)(*frac >> kNumPhaseBits);
-        *frac &= kPhaseMask;
-    }
-    int mX0L;
-    int mX0R;
-};
-
-/*static*/
-const double AudioResampler::kPhaseMultiplier = 1L << AudioResampler::kNumPhaseBits;
-
-bool AudioResampler::qualityIsSupported(src_quality quality)
-{
-    switch (quality) {
-    case DEFAULT_QUALITY:
-    case LOW_QUALITY:
-    case MED_QUALITY:
-    case HIGH_QUALITY:
-    case VERY_HIGH_QUALITY:
-    case DYN_LOW_QUALITY:
-    case DYN_MED_QUALITY:
-    case DYN_HIGH_QUALITY:
-        return true;
-    default:
-        return false;
-    }
-}
-
-// ----------------------------------------------------------------------------
-
-static pthread_once_t once_control = PTHREAD_ONCE_INIT;
-static AudioResampler::src_quality defaultQuality = AudioResampler::DEFAULT_QUALITY;
-
-void AudioResampler::init_routine()
-{
-    char value[PROPERTY_VALUE_MAX];
-    if (property_get("af.resampler.quality", value, NULL) > 0) {
-        char *endptr;
-        unsigned long l = strtoul(value, &endptr, 0);
-        if (*endptr == '\0') {
-            defaultQuality = (src_quality) l;
-            ALOGD("forcing AudioResampler quality to %d", defaultQuality);
-            if (defaultQuality < DEFAULT_QUALITY || defaultQuality > DYN_HIGH_QUALITY) {
-                defaultQuality = DEFAULT_QUALITY;
-            }
-        }
-    }
-}
-
-uint32_t AudioResampler::qualityMHz(src_quality quality)
-{
-    switch (quality) {
-    default:
-    case DEFAULT_QUALITY:
-    case LOW_QUALITY:
-        return 3;
-    case MED_QUALITY:
-        return 6;
-    case HIGH_QUALITY:
-        return 20;
-    case VERY_HIGH_QUALITY:
-        return 34;
-    case DYN_LOW_QUALITY:
-        return 4;
-    case DYN_MED_QUALITY:
-        return 6;
-    case DYN_HIGH_QUALITY:
-        return 12;
-    }
-}
-
-static const uint32_t maxMHz = 130; // an arbitrary number that permits 3 VHQ, should be tunable
-static pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
-static uint32_t currentMHz = 0;
-
-AudioResampler* AudioResampler::create(audio_format_t format, int inChannelCount,
-        int32_t sampleRate, src_quality quality) {
-
-    bool atFinalQuality;
-    if (quality == DEFAULT_QUALITY) {
-        // read the resampler default quality property the first time it is needed
-        int ok = pthread_once(&once_control, init_routine);
-        if (ok != 0) {
-            ALOGE("%s pthread_once failed: %d", __func__, ok);
-        }
-        quality = defaultQuality;
-        atFinalQuality = false;
-    } else {
-        atFinalQuality = true;
-    }
-
-    /* if the caller requests DEFAULT_QUALITY and af.resampler.property
-     * has not been set, the target resampler quality is set to DYN_MED_QUALITY,
-     * and allowed to "throttle" down to DYN_LOW_QUALITY if necessary
-     * due to estimated CPU load of having too many active resamplers
-     * (the code below the if).
-     */
-    if (quality == DEFAULT_QUALITY) {
-        quality = DYN_MED_QUALITY;
-    }
-
-    // naive implementation of CPU load throttling doesn't account for whether resampler is active
-    pthread_mutex_lock(&mutex);
-    for (;;) {
-        uint32_t deltaMHz = qualityMHz(quality);
-        uint32_t newMHz = currentMHz + deltaMHz;
-        if ((qualityIsSupported(quality) && newMHz <= maxMHz) || atFinalQuality) {
-            ALOGV("resampler load %u -> %u MHz due to delta +%u MHz from quality %d",
-                    currentMHz, newMHz, deltaMHz, quality);
-            currentMHz = newMHz;
-            break;
-        }
-        // not enough CPU available for proposed quality level, so try next lowest level
-        switch (quality) {
-        default:
-        case LOW_QUALITY:
-            atFinalQuality = true;
-            break;
-        case MED_QUALITY:
-            quality = LOW_QUALITY;
-            break;
-        case HIGH_QUALITY:
-            quality = MED_QUALITY;
-            break;
-        case VERY_HIGH_QUALITY:
-            quality = HIGH_QUALITY;
-            break;
-        case DYN_LOW_QUALITY:
-            atFinalQuality = true;
-            break;
-        case DYN_MED_QUALITY:
-            quality = DYN_LOW_QUALITY;
-            break;
-        case DYN_HIGH_QUALITY:
-            quality = DYN_MED_QUALITY;
-            break;
-        }
-    }
-    pthread_mutex_unlock(&mutex);
-
-    AudioResampler* resampler;
-
-    switch (quality) {
-    default:
-    case LOW_QUALITY:
-        ALOGV("Create linear Resampler");
-        LOG_ALWAYS_FATAL_IF(format != AUDIO_FORMAT_PCM_16_BIT);
-        resampler = new AudioResamplerOrder1(inChannelCount, sampleRate);
-        break;
-    case MED_QUALITY:
-        ALOGV("Create cubic Resampler");
-        LOG_ALWAYS_FATAL_IF(format != AUDIO_FORMAT_PCM_16_BIT);
-        resampler = new AudioResamplerCubic(inChannelCount, sampleRate);
-        break;
-    case HIGH_QUALITY:
-        ALOGV("Create HIGH_QUALITY sinc Resampler");
-        LOG_ALWAYS_FATAL_IF(format != AUDIO_FORMAT_PCM_16_BIT);
-        resampler = new AudioResamplerSinc(inChannelCount, sampleRate);
-        break;
-    case VERY_HIGH_QUALITY:
-        ALOGV("Create VERY_HIGH_QUALITY sinc Resampler = %d", quality);
-        LOG_ALWAYS_FATAL_IF(format != AUDIO_FORMAT_PCM_16_BIT);
-        resampler = new AudioResamplerSinc(inChannelCount, sampleRate, quality);
-        break;
-    case DYN_LOW_QUALITY:
-    case DYN_MED_QUALITY:
-    case DYN_HIGH_QUALITY:
-        ALOGV("Create dynamic Resampler = %d", quality);
-        if (format == AUDIO_FORMAT_PCM_FLOAT) {
-            resampler = new AudioResamplerDyn<float, float, float>(inChannelCount,
-                    sampleRate, quality);
-        } else {
-            LOG_ALWAYS_FATAL_IF(format != AUDIO_FORMAT_PCM_16_BIT);
-            if (quality == DYN_HIGH_QUALITY) {
-                resampler = new AudioResamplerDyn<int32_t, int16_t, int32_t>(inChannelCount,
-                        sampleRate, quality);
-            } else {
-                resampler = new AudioResamplerDyn<int16_t, int16_t, int32_t>(inChannelCount,
-                        sampleRate, quality);
-            }
-        }
-        break;
-    }
-
-    // initialize resampler
-    resampler->init();
-    return resampler;
-}
-
-AudioResampler::AudioResampler(int inChannelCount,
-        int32_t sampleRate, src_quality quality) :
-        mChannelCount(inChannelCount),
-        mSampleRate(sampleRate), mInSampleRate(sampleRate), mInputIndex(0),
-        mPhaseFraction(0),
-        mQuality(quality) {
-
-    const int maxChannels = quality < DYN_LOW_QUALITY ? 2 : 8;
-    if (inChannelCount < 1
-            || inChannelCount > maxChannels) {
-        LOG_ALWAYS_FATAL("Unsupported sample format %d quality %d channels",
-                quality, inChannelCount);
-    }
-    if (sampleRate <= 0) {
-        LOG_ALWAYS_FATAL("Unsupported sample rate %d Hz", sampleRate);
-    }
-
-    // initialize common members
-    mVolume[0] = mVolume[1] = 0;
-    mBuffer.frameCount = 0;
-}
-
-AudioResampler::~AudioResampler() {
-    pthread_mutex_lock(&mutex);
-    src_quality quality = getQuality();
-    uint32_t deltaMHz = qualityMHz(quality);
-    int32_t newMHz = currentMHz - deltaMHz;
-    ALOGV("resampler load %u -> %d MHz due to delta -%u MHz from quality %d",
-            currentMHz, newMHz, deltaMHz, quality);
-    LOG_ALWAYS_FATAL_IF(newMHz < 0, "negative resampler load %d MHz", newMHz);
-    currentMHz = newMHz;
-    pthread_mutex_unlock(&mutex);
-}
-
-void AudioResampler::setSampleRate(int32_t inSampleRate) {
-    mInSampleRate = inSampleRate;
-    mPhaseIncrement = (uint32_t)((kPhaseMultiplier * inSampleRate) / mSampleRate);
-}
-
-void AudioResampler::setVolume(float left, float right) {
-    // TODO: Implement anti-zipper filter
-    // convert to U4.12 for internal integer use (round down)
-    // integer volume values are clamped to 0 to UNITY_GAIN.
-    mVolume[0] = u4_12_from_float(clampFloatVol(left));
-    mVolume[1] = u4_12_from_float(clampFloatVol(right));
-}
-
-void AudioResampler::reset() {
-    mInputIndex = 0;
-    mPhaseFraction = 0;
-    mBuffer.frameCount = 0;
-}
-
-// ----------------------------------------------------------------------------
-
-size_t AudioResamplerOrder1::resample(int32_t* out, size_t outFrameCount,
-        AudioBufferProvider* provider) {
-
-    // should never happen, but we overflow if it does
-    // ALOG_ASSERT(outFrameCount < 32767);
-
-    // select the appropriate resampler
-    switch (mChannelCount) {
-    case 1:
-        return resampleMono16(out, outFrameCount, provider);
-    case 2:
-        return resampleStereo16(out, outFrameCount, provider);
-    default:
-        LOG_ALWAYS_FATAL("invalid channel count: %d", mChannelCount);
-        return 0;
-    }
-}
-
-size_t AudioResamplerOrder1::resampleStereo16(int32_t* out, size_t outFrameCount,
-        AudioBufferProvider* provider) {
-
-    int32_t vl = mVolume[0];
-    int32_t vr = mVolume[1];
-
-    size_t inputIndex = mInputIndex;
-    uint32_t phaseFraction = mPhaseFraction;
-    uint32_t phaseIncrement = mPhaseIncrement;
-    size_t outputIndex = 0;
-    size_t outputSampleCount = outFrameCount * 2;
-    size_t inFrameCount = getInFrameCountRequired(outFrameCount);
-
-    // ALOGE("starting resample %d frames, inputIndex=%d, phaseFraction=%d, phaseIncrement=%d",
-    //      outFrameCount, inputIndex, phaseFraction, phaseIncrement);
-
-    while (outputIndex < outputSampleCount) {
-
-        // buffer is empty, fetch a new one
-        while (mBuffer.frameCount == 0) {
-            mBuffer.frameCount = inFrameCount;
-            provider->getNextBuffer(&mBuffer);
-            if (mBuffer.raw == NULL) {
-                goto resampleStereo16_exit;
-            }
-
-            // ALOGE("New buffer fetched: %d frames", mBuffer.frameCount);
-            if (mBuffer.frameCount > inputIndex) break;
-
-            inputIndex -= mBuffer.frameCount;
-            mX0L = mBuffer.i16[mBuffer.frameCount*2-2];
-            mX0R = mBuffer.i16[mBuffer.frameCount*2-1];
-            provider->releaseBuffer(&mBuffer);
-            // mBuffer.frameCount == 0 now so we reload a new buffer
-        }
-
-        int16_t *in = mBuffer.i16;
-
-        // handle boundary case
-        while (inputIndex == 0) {
-            // ALOGE("boundary case");
-            out[outputIndex++] += vl * Interp(mX0L, in[0], phaseFraction);
-            out[outputIndex++] += vr * Interp(mX0R, in[1], phaseFraction);
-            Advance(&inputIndex, &phaseFraction, phaseIncrement);
-            if (outputIndex == outputSampleCount) {
-                break;
-            }
-        }
-
-        // process input samples
-        // ALOGE("general case");
-
-#ifdef ASM_ARM_RESAMP1  // asm optimisation for ResamplerOrder1
-        if (inputIndex + 2 < mBuffer.frameCount) {
-            int32_t* maxOutPt;
-            int32_t maxInIdx;
-
-            maxOutPt = out + (outputSampleCount - 2);   // 2 because 2 frames per loop
-            maxInIdx = mBuffer.frameCount - 2;
-            AsmStereo16Loop(in, maxOutPt, maxInIdx, outputIndex, out, inputIndex, vl, vr,
-                    phaseFraction, phaseIncrement);
-        }
-#endif  // ASM_ARM_RESAMP1
-
-        while (outputIndex < outputSampleCount && inputIndex < mBuffer.frameCount) {
-            out[outputIndex++] += vl * Interp(in[inputIndex*2-2],
-                    in[inputIndex*2], phaseFraction);
-            out[outputIndex++] += vr * Interp(in[inputIndex*2-1],
-                    in[inputIndex*2+1], phaseFraction);
-            Advance(&inputIndex, &phaseFraction, phaseIncrement);
-        }
-
-        // ALOGE("loop done - outputIndex=%d, inputIndex=%d", outputIndex, inputIndex);
-
-        // if done with buffer, save samples
-        if (inputIndex >= mBuffer.frameCount) {
-            inputIndex -= mBuffer.frameCount;
-
-            // ALOGE("buffer done, new input index %d", inputIndex);
-
-            mX0L = mBuffer.i16[mBuffer.frameCount*2-2];
-            mX0R = mBuffer.i16[mBuffer.frameCount*2-1];
-            provider->releaseBuffer(&mBuffer);
-
-            // verify that the releaseBuffer resets the buffer frameCount
-            // ALOG_ASSERT(mBuffer.frameCount == 0);
-        }
-    }
-
-    // ALOGE("output buffer full - outputIndex=%d, inputIndex=%d", outputIndex, inputIndex);
-
-resampleStereo16_exit:
-    // save state
-    mInputIndex = inputIndex;
-    mPhaseFraction = phaseFraction;
-    return outputIndex / 2 /* channels for stereo */;
-}
-
-size_t AudioResamplerOrder1::resampleMono16(int32_t* out, size_t outFrameCount,
-        AudioBufferProvider* provider) {
-
-    int32_t vl = mVolume[0];
-    int32_t vr = mVolume[1];
-
-    size_t inputIndex = mInputIndex;
-    uint32_t phaseFraction = mPhaseFraction;
-    uint32_t phaseIncrement = mPhaseIncrement;
-    size_t outputIndex = 0;
-    size_t outputSampleCount = outFrameCount * 2;
-    size_t inFrameCount = getInFrameCountRequired(outFrameCount);
-
-    // ALOGE("starting resample %d frames, inputIndex=%d, phaseFraction=%d, phaseIncrement=%d",
-    //      outFrameCount, inputIndex, phaseFraction, phaseIncrement);
-    while (outputIndex < outputSampleCount) {
-        // buffer is empty, fetch a new one
-        while (mBuffer.frameCount == 0) {
-            mBuffer.frameCount = inFrameCount;
-            provider->getNextBuffer(&mBuffer);
-            if (mBuffer.raw == NULL) {
-                mInputIndex = inputIndex;
-                mPhaseFraction = phaseFraction;
-                goto resampleMono16_exit;
-            }
-            // ALOGE("New buffer fetched: %d frames", mBuffer.frameCount);
-            if (mBuffer.frameCount >  inputIndex) break;
-
-            inputIndex -= mBuffer.frameCount;
-            mX0L = mBuffer.i16[mBuffer.frameCount-1];
-            provider->releaseBuffer(&mBuffer);
-            // mBuffer.frameCount == 0 now so we reload a new buffer
-        }
-        int16_t *in = mBuffer.i16;
-
-        // handle boundary case
-        while (inputIndex == 0) {
-            // ALOGE("boundary case");
-            int32_t sample = Interp(mX0L, in[0], phaseFraction);
-            out[outputIndex++] += vl * sample;
-            out[outputIndex++] += vr * sample;
-            Advance(&inputIndex, &phaseFraction, phaseIncrement);
-            if (outputIndex == outputSampleCount) {
-                break;
-            }
-        }
-
-        // process input samples
-        // ALOGE("general case");
-
-#ifdef ASM_ARM_RESAMP1  // asm optimisation for ResamplerOrder1
-        if (inputIndex + 2 < mBuffer.frameCount) {
-            int32_t* maxOutPt;
-            int32_t maxInIdx;
-
-            maxOutPt = out + (outputSampleCount - 2);
-            maxInIdx = (int32_t)mBuffer.frameCount - 2;
-                AsmMono16Loop(in, maxOutPt, maxInIdx, outputIndex, out, inputIndex, vl, vr,
-                        phaseFraction, phaseIncrement);
-        }
-#endif  // ASM_ARM_RESAMP1
-
-        while (outputIndex < outputSampleCount && inputIndex < mBuffer.frameCount) {
-            int32_t sample = Interp(in[inputIndex-1], in[inputIndex],
-                    phaseFraction);
-            out[outputIndex++] += vl * sample;
-            out[outputIndex++] += vr * sample;
-            Advance(&inputIndex, &phaseFraction, phaseIncrement);
-        }
-
-
-        // ALOGE("loop done - outputIndex=%d, inputIndex=%d", outputIndex, inputIndex);
-
-        // if done with buffer, save samples
-        if (inputIndex >= mBuffer.frameCount) {
-            inputIndex -= mBuffer.frameCount;
-
-            // ALOGE("buffer done, new input index %d", inputIndex);
-
-            mX0L = mBuffer.i16[mBuffer.frameCount-1];
-            provider->releaseBuffer(&mBuffer);
-
-            // verify that the releaseBuffer resets the buffer frameCount
-            // ALOG_ASSERT(mBuffer.frameCount == 0);
-        }
-    }
-
-    // ALOGE("output buffer full - outputIndex=%d, inputIndex=%d", outputIndex, inputIndex);
-
-resampleMono16_exit:
-    // save state
-    mInputIndex = inputIndex;
-    mPhaseFraction = phaseFraction;
-    return outputIndex;
-}
-
-#ifdef ASM_ARM_RESAMP1  // asm optimisation for ResamplerOrder1
-
-/*******************************************************************
-*
-*   AsmMono16Loop
-*   asm optimized monotonic loop version; one loop is 2 frames
-*   Input:
-*       in : pointer on input samples
-*       maxOutPt : pointer on first not filled
-*       maxInIdx : index on first not used
-*       outputIndex : pointer on current output index
-*       out : pointer on output buffer
-*       inputIndex : pointer on current input index
-*       vl, vr : left and right gain
-*       phaseFraction : pointer on current phase fraction
-*       phaseIncrement
-*   Ouput:
-*       outputIndex :
-*       out : updated buffer
-*       inputIndex : index of next to use
-*       phaseFraction : phase fraction for next interpolation
-*
-*******************************************************************/
-__attribute__((noinline))
-void AudioResamplerOrder1::AsmMono16Loop(int16_t *in, int32_t* maxOutPt, int32_t maxInIdx,
-            size_t &outputIndex, int32_t* out, size_t &inputIndex, int32_t vl, int32_t vr,
-            uint32_t &phaseFraction, uint32_t phaseIncrement)
-{
-    (void)maxOutPt; // remove unused parameter warnings
-    (void)maxInIdx;
-    (void)outputIndex;
-    (void)out;
-    (void)inputIndex;
-    (void)vl;
-    (void)vr;
-    (void)phaseFraction;
-    (void)phaseIncrement;
-    (void)in;
-#define MO_PARAM5   "36"        // offset of parameter 5 (outputIndex)
-
-    asm(
-        "stmfd  sp!, {r4, r5, r6, r7, r8, r9, r10, r11, lr}\n"
-        // get parameters
-        "   ldr r6, [sp, #" MO_PARAM5 " + 20]\n"    // &phaseFraction
-        "   ldr r6, [r6]\n"                         // phaseFraction
-        "   ldr r7, [sp, #" MO_PARAM5 " + 8]\n"     // &inputIndex
-        "   ldr r7, [r7]\n"                         // inputIndex
-        "   ldr r8, [sp, #" MO_PARAM5 " + 4]\n"     // out
-        "   ldr r0, [sp, #" MO_PARAM5 " + 0]\n"     // &outputIndex
-        "   ldr r0, [r0]\n"                         // outputIndex
-        "   add r8, r8, r0, asl #2\n"               // curOut
-        "   ldr r9, [sp, #" MO_PARAM5 " + 24]\n"    // phaseIncrement
-        "   ldr r10, [sp, #" MO_PARAM5 " + 12]\n"   // vl
-        "   ldr r11, [sp, #" MO_PARAM5 " + 16]\n"   // vr
-
-        // r0 pin, x0, Samp
-
-        // r1 in
-        // r2 maxOutPt
-        // r3 maxInIdx
-
-        // r4 x1, i1, i3, Out1
-        // r5 out0
-
-        // r6 frac
-        // r7 inputIndex
-        // r8 curOut
-
-        // r9 inc
-        // r10 vl
-        // r11 vr
-
-        // r12
-        // r13 sp
-        // r14
-
-        // the following loop works on 2 frames
-
-        "1:\n"
-        "   cmp r8, r2\n"                   // curOut - maxCurOut
-        "   bcs 2f\n"
-
-#define MO_ONE_FRAME \
-    "   add r0, r1, r7, asl #1\n"       /* in + inputIndex */\
-    "   ldrsh r4, [r0]\n"               /* in[inputIndex] */\
-    "   ldr r5, [r8]\n"                 /* out[outputIndex] */\
-    "   ldrsh r0, [r0, #-2]\n"          /* in[inputIndex-1] */\
-    "   bic r6, r6, #0xC0000000\n"      /* phaseFraction & ... */\
-    "   sub r4, r4, r0\n"               /* in[inputIndex] - in[inputIndex-1] */\
-    "   mov r4, r4, lsl #2\n"           /* <<2 */\
-    "   smulwt r4, r4, r6\n"            /* (x1-x0)*.. */\
-    "   add r6, r6, r9\n"               /* phaseFraction + phaseIncrement */\
-    "   add r0, r0, r4\n"               /* x0 - (..) */\
-    "   mla r5, r0, r10, r5\n"          /* vl*interp + out[] */\
-    "   ldr r4, [r8, #4]\n"             /* out[outputIndex+1] */\
-    "   str r5, [r8], #4\n"             /* out[outputIndex++] = ... */\
-    "   mla r4, r0, r11, r4\n"          /* vr*interp + out[] */\
-    "   add r7, r7, r6, lsr #30\n"      /* inputIndex + phaseFraction>>30 */\
-    "   str r4, [r8], #4\n"             /* out[outputIndex++] = ... */
-
-        MO_ONE_FRAME    // frame 1
-        MO_ONE_FRAME    // frame 2
-
-        "   cmp r7, r3\n"                   // inputIndex - maxInIdx
-        "   bcc 1b\n"
-        "2:\n"
-
-        "   bic r6, r6, #0xC0000000\n"             // phaseFraction & ...
-        // save modified values
-        "   ldr r0, [sp, #" MO_PARAM5 " + 20]\n"    // &phaseFraction
-        "   str r6, [r0]\n"                         // phaseFraction
-        "   ldr r0, [sp, #" MO_PARAM5 " + 8]\n"     // &inputIndex
-        "   str r7, [r0]\n"                         // inputIndex
-        "   ldr r0, [sp, #" MO_PARAM5 " + 4]\n"     // out
-        "   sub r8, r0\n"                           // curOut - out
-        "   asr r8, #2\n"                           // new outputIndex
-        "   ldr r0, [sp, #" MO_PARAM5 " + 0]\n"     // &outputIndex
-        "   str r8, [r0]\n"                         // save outputIndex
-
-        "   ldmfd   sp!, {r4, r5, r6, r7, r8, r9, r10, r11, pc}\n"
-    );
-}
-
-/*******************************************************************
-*
-*   AsmStereo16Loop
-*   asm optimized stereo loop version; one loop is 2 frames
-*   Input:
-*       in : pointer on input samples
-*       maxOutPt : pointer on first not filled
-*       maxInIdx : index on first not used
-*       outputIndex : pointer on current output index
-*       out : pointer on output buffer
-*       inputIndex : pointer on current input index
-*       vl, vr : left and right gain
-*       phaseFraction : pointer on current phase fraction
-*       phaseIncrement
-*   Ouput:
-*       outputIndex :
-*       out : updated buffer
-*       inputIndex : index of next to use
-*       phaseFraction : phase fraction for next interpolation
-*
-*******************************************************************/
-__attribute__((noinline))
-void AudioResamplerOrder1::AsmStereo16Loop(int16_t *in, int32_t* maxOutPt, int32_t maxInIdx,
-            size_t &outputIndex, int32_t* out, size_t &inputIndex, int32_t vl, int32_t vr,
-            uint32_t &phaseFraction, uint32_t phaseIncrement)
-{
-    (void)maxOutPt; // remove unused parameter warnings
-    (void)maxInIdx;
-    (void)outputIndex;
-    (void)out;
-    (void)inputIndex;
-    (void)vl;
-    (void)vr;
-    (void)phaseFraction;
-    (void)phaseIncrement;
-    (void)in;
-#define ST_PARAM5    "40"     // offset of parameter 5 (outputIndex)
-    asm(
-        "stmfd  sp!, {r4, r5, r6, r7, r8, r9, r10, r11, r12, lr}\n"
-        // get parameters
-        "   ldr r6, [sp, #" ST_PARAM5 " + 20]\n"    // &phaseFraction
-        "   ldr r6, [r6]\n"                         // phaseFraction
-        "   ldr r7, [sp, #" ST_PARAM5 " + 8]\n"     // &inputIndex
-        "   ldr r7, [r7]\n"                         // inputIndex
-        "   ldr r8, [sp, #" ST_PARAM5 " + 4]\n"     // out
-        "   ldr r0, [sp, #" ST_PARAM5 " + 0]\n"     // &outputIndex
-        "   ldr r0, [r0]\n"                         // outputIndex
-        "   add r8, r8, r0, asl #2\n"               // curOut
-        "   ldr r9, [sp, #" ST_PARAM5 " + 24]\n"    // phaseIncrement
-        "   ldr r10, [sp, #" ST_PARAM5 " + 12]\n"   // vl
-        "   ldr r11, [sp, #" ST_PARAM5 " + 16]\n"   // vr
-
-        // r0 pin, x0, Samp
-
-        // r1 in
-        // r2 maxOutPt
-        // r3 maxInIdx
-
-        // r4 x1, i1, i3, out1
-        // r5 out0
-
-        // r6 frac
-        // r7 inputIndex
-        // r8 curOut
-
-        // r9 inc
-        // r10 vl
-        // r11 vr
-
-        // r12 temporary
-        // r13 sp
-        // r14
-
-        "3:\n"
-        "   cmp r8, r2\n"                   // curOut - maxCurOut
-        "   bcs 4f\n"
-
-#define ST_ONE_FRAME \
-    "   bic r6, r6, #0xC0000000\n"      /* phaseFraction & ... */\
-\
-    "   add r0, r1, r7, asl #2\n"       /* in + 2*inputIndex */\
-\
-    "   ldrsh r4, [r0]\n"               /* in[2*inputIndex] */\
-    "   ldr r5, [r8]\n"                 /* out[outputIndex] */\
-    "   ldrsh r12, [r0, #-4]\n"         /* in[2*inputIndex-2] */\
-    "   sub r4, r4, r12\n"              /* in[2*InputIndex] - in[2*InputIndex-2] */\
-    "   mov r4, r4, lsl #2\n"           /* <<2 */\
-    "   smulwt r4, r4, r6\n"            /* (x1-x0)*.. */\
-    "   add r12, r12, r4\n"             /* x0 - (..) */\
-    "   mla r5, r12, r10, r5\n"         /* vl*interp + out[] */\
-    "   ldr r4, [r8, #4]\n"             /* out[outputIndex+1] */\
-    "   str r5, [r8], #4\n"             /* out[outputIndex++] = ... */\
-\
-    "   ldrsh r12, [r0, #+2]\n"         /* in[2*inputIndex+1] */\
-    "   ldrsh r0, [r0, #-2]\n"          /* in[2*inputIndex-1] */\
-    "   sub r12, r12, r0\n"             /* in[2*InputIndex] - in[2*InputIndex-2] */\
-    "   mov r12, r12, lsl #2\n"         /* <<2 */\
-    "   smulwt r12, r12, r6\n"          /* (x1-x0)*.. */\
-    "   add r12, r0, r12\n"             /* x0 - (..) */\
-    "   mla r4, r12, r11, r4\n"         /* vr*interp + out[] */\
-    "   str r4, [r8], #4\n"             /* out[outputIndex++] = ... */\
-\
-    "   add r6, r6, r9\n"               /* phaseFraction + phaseIncrement */\
-    "   add r7, r7, r6, lsr #30\n"      /* inputIndex + phaseFraction>>30 */
-
-    ST_ONE_FRAME    // frame 1
-    ST_ONE_FRAME    // frame 1
-
-        "   cmp r7, r3\n"                       // inputIndex - maxInIdx
-        "   bcc 3b\n"
-        "4:\n"
-
-        "   bic r6, r6, #0xC0000000\n"              // phaseFraction & ...
-        // save modified values
-        "   ldr r0, [sp, #" ST_PARAM5 " + 20]\n"    // &phaseFraction
-        "   str r6, [r0]\n"                         // phaseFraction
-        "   ldr r0, [sp, #" ST_PARAM5 " + 8]\n"     // &inputIndex
-        "   str r7, [r0]\n"                         // inputIndex
-        "   ldr r0, [sp, #" ST_PARAM5 " + 4]\n"     // out
-        "   sub r8, r0\n"                           // curOut - out
-        "   asr r8, #2\n"                           // new outputIndex
-        "   ldr r0, [sp, #" ST_PARAM5 " + 0]\n"     // &outputIndex
-        "   str r8, [r0]\n"                         // save outputIndex
-
-        "   ldmfd   sp!, {r4, r5, r6, r7, r8, r9, r10, r11, r12, pc}\n"
-    );
-}
-
-#endif  // ASM_ARM_RESAMP1
-
-
-// ----------------------------------------------------------------------------
-
-} // namespace android
diff --git a/services/audioflinger/AudioResamplerCubic.cpp b/services/audioflinger/AudioResamplerCubic.cpp
deleted file mode 100644
index 9fb6699..0000000
--- a/services/audioflinger/AudioResamplerCubic.cpp
+++ /dev/null
@@ -1,189 +0,0 @@
-/*
- * Copyright (C) 2007 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "AudioResamplerCubic"
-
-#include <stdint.h>
-#include <string.h>
-#include <sys/types.h>
-
-#include <log/log.h>
-
-#include "AudioResampler.h"
-#include "AudioResamplerCubic.h"
-
-namespace android {
-// ----------------------------------------------------------------------------
-
-void AudioResamplerCubic::init() {
-    memset(&left, 0, sizeof(state));
-    memset(&right, 0, sizeof(state));
-}
-
-size_t AudioResamplerCubic::resample(int32_t* out, size_t outFrameCount,
-        AudioBufferProvider* provider) {
-
-    // should never happen, but we overflow if it does
-    // ALOG_ASSERT(outFrameCount < 32767);
-
-    // select the appropriate resampler
-    switch (mChannelCount) {
-    case 1:
-        return resampleMono16(out, outFrameCount, provider);
-    case 2:
-        return resampleStereo16(out, outFrameCount, provider);
-    default:
-        LOG_ALWAYS_FATAL("invalid channel count: %d", mChannelCount);
-        return 0;
-    }
-}
-
-size_t AudioResamplerCubic::resampleStereo16(int32_t* out, size_t outFrameCount,
-        AudioBufferProvider* provider) {
-
-    int32_t vl = mVolume[0];
-    int32_t vr = mVolume[1];
-
-    size_t inputIndex = mInputIndex;
-    uint32_t phaseFraction = mPhaseFraction;
-    uint32_t phaseIncrement = mPhaseIncrement;
-    size_t outputIndex = 0;
-    size_t outputSampleCount = outFrameCount * 2;
-    size_t inFrameCount = getInFrameCountRequired(outFrameCount);
-
-    // fetch first buffer
-    if (mBuffer.frameCount == 0) {
-        mBuffer.frameCount = inFrameCount;
-        provider->getNextBuffer(&mBuffer);
-        if (mBuffer.raw == NULL) {
-            return 0;
-        }
-        // ALOGW("New buffer: offset=%p, frames=%dn", mBuffer.raw, mBuffer.frameCount);
-    }
-    int16_t *in = mBuffer.i16;
-
-    while (outputIndex < outputSampleCount) {
-        int32_t x;
-
-        // calculate output sample
-        x = phaseFraction >> kPreInterpShift;
-        out[outputIndex++] += vl * interp(&left, x);
-        out[outputIndex++] += vr * interp(&right, x);
-        // out[outputIndex++] += vr * in[inputIndex*2];
-
-        // increment phase
-        phaseFraction += phaseIncrement;
-        uint32_t indexIncrement = (phaseFraction >> kNumPhaseBits);
-        phaseFraction &= kPhaseMask;
-
-        // time to fetch another sample
-        while (indexIncrement--) {
-
-            inputIndex++;
-            if (inputIndex == mBuffer.frameCount) {
-                inputIndex = 0;
-                provider->releaseBuffer(&mBuffer);
-                mBuffer.frameCount = inFrameCount;
-                provider->getNextBuffer(&mBuffer);
-                if (mBuffer.raw == NULL) {
-                    goto save_state;  // ugly, but efficient
-                }
-                in = mBuffer.i16;
-                // ALOGW("New buffer: offset=%p, frames=%d", mBuffer.raw, mBuffer.frameCount);
-            }
-
-            // advance sample state
-            advance(&left, in[inputIndex*2]);
-            advance(&right, in[inputIndex*2+1]);
-        }
-    }
-
-save_state:
-    // ALOGW("Done: index=%d, fraction=%u", inputIndex, phaseFraction);
-    mInputIndex = inputIndex;
-    mPhaseFraction = phaseFraction;
-    return outputIndex / 2 /* channels for stereo */;
-}
-
-size_t AudioResamplerCubic::resampleMono16(int32_t* out, size_t outFrameCount,
-        AudioBufferProvider* provider) {
-
-    int32_t vl = mVolume[0];
-    int32_t vr = mVolume[1];
-
-    size_t inputIndex = mInputIndex;
-    uint32_t phaseFraction = mPhaseFraction;
-    uint32_t phaseIncrement = mPhaseIncrement;
-    size_t outputIndex = 0;
-    size_t outputSampleCount = outFrameCount * 2;
-    size_t inFrameCount = getInFrameCountRequired(outFrameCount);
-
-    // fetch first buffer
-    if (mBuffer.frameCount == 0) {
-        mBuffer.frameCount = inFrameCount;
-        provider->getNextBuffer(&mBuffer);
-        if (mBuffer.raw == NULL) {
-            return 0;
-        }
-        // ALOGW("New buffer: offset=%p, frames=%d", mBuffer.raw, mBuffer.frameCount);
-    }
-    int16_t *in = mBuffer.i16;
-
-    while (outputIndex < outputSampleCount) {
-        int32_t sample;
-        int32_t x;
-
-        // calculate output sample
-        x = phaseFraction >> kPreInterpShift;
-        sample = interp(&left, x);
-        out[outputIndex++] += vl * sample;
-        out[outputIndex++] += vr * sample;
-
-        // increment phase
-        phaseFraction += phaseIncrement;
-        uint32_t indexIncrement = (phaseFraction >> kNumPhaseBits);
-        phaseFraction &= kPhaseMask;
-
-        // time to fetch another sample
-        while (indexIncrement--) {
-
-            inputIndex++;
-            if (inputIndex == mBuffer.frameCount) {
-                inputIndex = 0;
-                provider->releaseBuffer(&mBuffer);
-                mBuffer.frameCount = inFrameCount;
-                provider->getNextBuffer(&mBuffer);
-                if (mBuffer.raw == NULL) {
-                    goto save_state;  // ugly, but efficient
-                }
-                // ALOGW("New buffer: offset=%p, frames=%dn", mBuffer.raw, mBuffer.frameCount);
-                in = mBuffer.i16;
-            }
-
-            // advance sample state
-            advance(&left, in[inputIndex]);
-        }
-    }
-
-save_state:
-    // ALOGW("Done: index=%d, fraction=%u", inputIndex, phaseFraction);
-    mInputIndex = inputIndex;
-    mPhaseFraction = phaseFraction;
-    return outputIndex;
-}
-
-// ----------------------------------------------------------------------------
-} // namespace android
diff --git a/services/audioflinger/AudioResamplerCubic.h b/services/audioflinger/AudioResamplerCubic.h
deleted file mode 100644
index f218fd9..0000000
--- a/services/audioflinger/AudioResamplerCubic.h
+++ /dev/null
@@ -1,68 +0,0 @@
-/*
- * Copyright (C) 2007 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_AUDIO_RESAMPLER_CUBIC_H
-#define ANDROID_AUDIO_RESAMPLER_CUBIC_H
-
-#include <stdint.h>
-#include <sys/types.h>
-#include <android/log.h>
-
-#include "AudioResampler.h"
-
-namespace android {
-// ----------------------------------------------------------------------------
-
-class AudioResamplerCubic : public AudioResampler {
-public:
-    AudioResamplerCubic(int inChannelCount, int32_t sampleRate) :
-        AudioResampler(inChannelCount, sampleRate, MED_QUALITY) {
-    }
-    virtual size_t resample(int32_t* out, size_t outFrameCount,
-            AudioBufferProvider* provider);
-private:
-    // number of bits used in interpolation multiply - 14 bits avoids overflow
-    static const int kNumInterpBits = 14;
-
-    // bits to shift the phase fraction down to avoid overflow
-    static const int kPreInterpShift = kNumPhaseBits - kNumInterpBits;
-    typedef struct {
-        int32_t a, b, c, y0, y1, y2, y3;
-    } state;
-    void init();
-    size_t resampleMono16(int32_t* out, size_t outFrameCount,
-            AudioBufferProvider* provider);
-    size_t resampleStereo16(int32_t* out, size_t outFrameCount,
-            AudioBufferProvider* provider);
-    static inline int32_t interp(state* p, int32_t x) {
-        return (((((p->a * x >> 14) + p->b) * x >> 14) + p->c) * x >> 14) + p->y1;
-    }
-    static inline void advance(state* p, int16_t in) {
-        p->y0 = p->y1;
-        p->y1 = p->y2;
-        p->y2 = p->y3;
-        p->y3 = in;
-        p->a = (3 * (p->y1 - p->y2) - p->y0 + p->y3) >> 1;
-        p->b = (p->y2 << 1) + p->y0 - (((5 * p->y1 + p->y3)) >> 1);
-        p->c = (p->y2 - p->y0) >> 1;
-    }
-    state left, right;
-};
-
-// ----------------------------------------------------------------------------
-} // namespace android
-
-#endif /*ANDROID_AUDIO_RESAMPLER_CUBIC_H*/
diff --git a/services/audioflinger/AudioResamplerDyn.cpp b/services/audioflinger/AudioResamplerDyn.cpp
deleted file mode 100644
index 213cd1a..0000000
--- a/services/audioflinger/AudioResamplerDyn.cpp
+++ /dev/null
@@ -1,621 +0,0 @@
-/*
- * Copyright (C) 2013 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "AudioResamplerDyn"
-//#define LOG_NDEBUG 0
-
-#include <malloc.h>
-#include <string.h>
-#include <stdlib.h>
-#include <dlfcn.h>
-#include <math.h>
-
-#include <cutils/compiler.h>
-#include <cutils/properties.h>
-#include <utils/Debug.h>
-#include <utils/Log.h>
-#include <audio_utils/primitives.h>
-
-#include "AudioResamplerFirOps.h" // USE_NEON, USE_SSE and USE_INLINE_ASSEMBLY defined here
-#include "AudioResamplerFirProcess.h"
-#include "AudioResamplerFirProcessNeon.h"
-#include "AudioResamplerFirProcessSSE.h"
-#include "AudioResamplerFirGen.h" // requires math.h
-#include "AudioResamplerDyn.h"
-
-//#define DEBUG_RESAMPLER
-
-namespace android {
-
-/*
- * InBuffer is a type agnostic input buffer.
- *
- * Layout of the state buffer for halfNumCoefs=8.
- *
- * [rrrrrrppppppppnnnnnnnnrrrrrrrrrrrrrrrrrrr.... rrrrrrr]
- *  S            I                                R
- *
- * S = mState
- * I = mImpulse
- * R = mRingFull
- * p = past samples, convoluted with the (p)ositive side of sinc()
- * n = future samples, convoluted with the (n)egative side of sinc()
- * r = extra space for implementing the ring buffer
- */
-
-template<typename TC, typename TI, typename TO>
-AudioResamplerDyn<TC, TI, TO>::InBuffer::InBuffer()
-    : mState(NULL), mImpulse(NULL), mRingFull(NULL), mStateCount(0)
-{
-}
-
-template<typename TC, typename TI, typename TO>
-AudioResamplerDyn<TC, TI, TO>::InBuffer::~InBuffer()
-{
-    init();
-}
-
-template<typename TC, typename TI, typename TO>
-void AudioResamplerDyn<TC, TI, TO>::InBuffer::init()
-{
-    free(mState);
-    mState = NULL;
-    mImpulse = NULL;
-    mRingFull = NULL;
-    mStateCount = 0;
-}
-
-// resizes the state buffer to accommodate the appropriate filter length
-template<typename TC, typename TI, typename TO>
-void AudioResamplerDyn<TC, TI, TO>::InBuffer::resize(int CHANNELS, int halfNumCoefs)
-{
-    // calculate desired state size
-    size_t stateCount = halfNumCoefs * CHANNELS * 2 * kStateSizeMultipleOfFilterLength;
-
-    // check if buffer needs resizing
-    if (mState
-            && stateCount == mStateCount
-            && mRingFull-mState == (ssize_t) (mStateCount-halfNumCoefs*CHANNELS)) {
-        return;
-    }
-
-    // create new buffer
-    TI* state = NULL;
-    (void)posix_memalign(reinterpret_cast<void**>(&state), 32, stateCount*sizeof(*state));
-    memset(state, 0, stateCount*sizeof(*state));
-
-    // attempt to preserve state
-    if (mState) {
-        TI* srcLo = mImpulse - halfNumCoefs*CHANNELS;
-        TI* srcHi = mImpulse + halfNumCoefs*CHANNELS;
-        TI* dst = state;
-
-        if (srcLo < mState) {
-            dst += mState-srcLo;
-            srcLo = mState;
-        }
-        if (srcHi > mState + mStateCount) {
-            srcHi = mState + mStateCount;
-        }
-        memcpy(dst, srcLo, (srcHi - srcLo) * sizeof(*srcLo));
-        free(mState);
-    }
-
-    // set class member vars
-    mState = state;
-    mStateCount = stateCount;
-    mImpulse = state + halfNumCoefs*CHANNELS; // actually one sample greater than needed
-    mRingFull = state + mStateCount - halfNumCoefs*CHANNELS;
-}
-
-// copy in the input data into the head (impulse+halfNumCoefs) of the buffer.
-template<typename TC, typename TI, typename TO>
-template<int CHANNELS>
-void AudioResamplerDyn<TC, TI, TO>::InBuffer::readAgain(TI*& impulse, const int halfNumCoefs,
-        const TI* const in, const size_t inputIndex)
-{
-    TI* head = impulse + halfNumCoefs*CHANNELS;
-    for (size_t i=0 ; i<CHANNELS ; i++) {
-        head[i] = in[inputIndex*CHANNELS + i];
-    }
-}
-
-// advance the impulse pointer, and load in data into the head (impulse+halfNumCoefs)
-template<typename TC, typename TI, typename TO>
-template<int CHANNELS>
-void AudioResamplerDyn<TC, TI, TO>::InBuffer::readAdvance(TI*& impulse, const int halfNumCoefs,
-        const TI* const in, const size_t inputIndex)
-{
-    impulse += CHANNELS;
-
-    if (CC_UNLIKELY(impulse >= mRingFull)) {
-        const size_t shiftDown = mRingFull - mState - halfNumCoefs*CHANNELS;
-        memcpy(mState, mState+shiftDown, halfNumCoefs*CHANNELS*2*sizeof(TI));
-        impulse -= shiftDown;
-    }
-    readAgain<CHANNELS>(impulse, halfNumCoefs, in, inputIndex);
-}
-
-template<typename TC, typename TI, typename TO>
-void AudioResamplerDyn<TC, TI, TO>::Constants::set(
-        int L, int halfNumCoefs, int inSampleRate, int outSampleRate)
-{
-    int bits = 0;
-    int lscale = inSampleRate/outSampleRate < 2 ? L - 1 :
-            static_cast<int>(static_cast<uint64_t>(L)*inSampleRate/outSampleRate);
-    for (int i=lscale; i; ++bits, i>>=1)
-        ;
-    mL = L;
-    mShift = kNumPhaseBits - bits;
-    mHalfNumCoefs = halfNumCoefs;
-}
-
-template<typename TC, typename TI, typename TO>
-AudioResamplerDyn<TC, TI, TO>::AudioResamplerDyn(
-        int inChannelCount, int32_t sampleRate, src_quality quality)
-    : AudioResampler(inChannelCount, sampleRate, quality),
-      mResampleFunc(0), mFilterSampleRate(0), mFilterQuality(DEFAULT_QUALITY),
-    mCoefBuffer(NULL)
-{
-    mVolumeSimd[0] = mVolumeSimd[1] = 0;
-    // The AudioResampler base class assumes we are always ready for 1:1 resampling.
-    // We reset mInSampleRate to 0, so setSampleRate() will calculate filters for
-    // setSampleRate() for 1:1. (May be removed if precalculated filters are used.)
-    mInSampleRate = 0;
-    mConstants.set(128, 8, mSampleRate, mSampleRate); // TODO: set better
-}
-
-template<typename TC, typename TI, typename TO>
-AudioResamplerDyn<TC, TI, TO>::~AudioResamplerDyn()
-{
-    free(mCoefBuffer);
-}
-
-template<typename TC, typename TI, typename TO>
-void AudioResamplerDyn<TC, TI, TO>::init()
-{
-    mFilterSampleRate = 0; // always trigger new filter generation
-    mInBuffer.init();
-}
-
-template<typename TC, typename TI, typename TO>
-void AudioResamplerDyn<TC, TI, TO>::setVolume(float left, float right)
-{
-    AudioResampler::setVolume(left, right);
-    if (is_same<TO, float>::value || is_same<TO, double>::value) {
-        mVolumeSimd[0] = static_cast<TO>(left);
-        mVolumeSimd[1] = static_cast<TO>(right);
-    } else {  // integer requires scaling to U4_28 (rounding down)
-        // integer volumes are clamped to 0 to UNITY_GAIN so there
-        // are no issues with signed overflow.
-        mVolumeSimd[0] = u4_28_from_float(clampFloatVol(left));
-        mVolumeSimd[1] = u4_28_from_float(clampFloatVol(right));
-    }
-}
-
-template<typename T> T max(T a, T b) {return a > b ? a : b;}
-
-template<typename T> T absdiff(T a, T b) {return a > b ? a - b : b - a;}
-
-template<typename TC, typename TI, typename TO>
-void AudioResamplerDyn<TC, TI, TO>::createKaiserFir(Constants &c,
-        double stopBandAtten, int inSampleRate, int outSampleRate, double tbwCheat)
-{
-    TC* buf = NULL;
-    static const double atten = 0.9998;   // to avoid ripple overflow
-    double fcr;
-    double tbw = firKaiserTbw(c.mHalfNumCoefs, stopBandAtten);
-
-    (void)posix_memalign(reinterpret_cast<void**>(&buf), 32, (c.mL+1)*c.mHalfNumCoefs*sizeof(TC));
-    if (inSampleRate < outSampleRate) { // upsample
-        fcr = max(0.5*tbwCheat - tbw/2, tbw/2);
-    } else { // downsample
-        fcr = max(0.5*tbwCheat*outSampleRate/inSampleRate - tbw/2, tbw/2);
-    }
-    // create and set filter
-    firKaiserGen(buf, c.mL, c.mHalfNumCoefs, stopBandAtten, fcr, atten);
-    c.mFirCoefs = buf;
-    if (mCoefBuffer) {
-        free(mCoefBuffer);
-    }
-    mCoefBuffer = buf;
-#ifdef DEBUG_RESAMPLER
-    // print basic filter stats
-    printf("L:%d  hnc:%d  stopBandAtten:%lf  fcr:%lf  atten:%lf  tbw:%lf\n",
-            c.mL, c.mHalfNumCoefs, stopBandAtten, fcr, atten, tbw);
-    // test the filter and report results
-    double fp = (fcr - tbw/2)/c.mL;
-    double fs = (fcr + tbw/2)/c.mL;
-    double passMin, passMax, passRipple;
-    double stopMax, stopRipple;
-    testFir(buf, c.mL, c.mHalfNumCoefs, fp, fs, /*passSteps*/ 1000, /*stopSteps*/ 100000,
-            passMin, passMax, passRipple, stopMax, stopRipple);
-    printf("passband(%lf, %lf): %.8lf %.8lf %.8lf\n", 0., fp, passMin, passMax, passRipple);
-    printf("stopband(%lf, %lf): %.8lf %.3lf\n", fs, 0.5, stopMax, stopRipple);
-#endif
-}
-
-// recursive gcd. Using objdump, it appears the tail recursion is converted to a while loop.
-static int gcd(int n, int m)
-{
-    if (m == 0) {
-        return n;
-    }
-    return gcd(m, n % m);
-}
-
-static bool isClose(int32_t newSampleRate, int32_t prevSampleRate,
-        int32_t filterSampleRate, int32_t outSampleRate)
-{
-
-    // different upsampling ratios do not need a filter change.
-    if (filterSampleRate != 0
-            && filterSampleRate < outSampleRate
-            && newSampleRate < outSampleRate)
-        return true;
-
-    // check design criteria again if downsampling is detected.
-    int pdiff = absdiff(newSampleRate, prevSampleRate);
-    int adiff = absdiff(newSampleRate, filterSampleRate);
-
-    // allow up to 6% relative change increments.
-    // allow up to 12% absolute change increments (from filter design)
-    return pdiff < prevSampleRate>>4 && adiff < filterSampleRate>>3;
-}
-
-template<typename TC, typename TI, typename TO>
-void AudioResamplerDyn<TC, TI, TO>::setSampleRate(int32_t inSampleRate)
-{
-    if (mInSampleRate == inSampleRate) {
-        return;
-    }
-    int32_t oldSampleRate = mInSampleRate;
-    uint32_t oldPhaseWrapLimit = mConstants.mL << mConstants.mShift;
-    bool useS32 = false;
-
-    mInSampleRate = inSampleRate;
-
-    // TODO: Add precalculated Equiripple filters
-
-    if (mFilterQuality != getQuality() ||
-            !isClose(inSampleRate, oldSampleRate, mFilterSampleRate, mSampleRate)) {
-        mFilterSampleRate = inSampleRate;
-        mFilterQuality = getQuality();
-
-        // Begin Kaiser Filter computation
-        //
-        // The quantization floor for S16 is about 96db - 10*log_10(#length) + 3dB.
-        // Keep the stop band attenuation no greater than 84-85dB for 32 length S16 filters
-        //
-        // For s32 we keep the stop band attenuation at the same as 16b resolution, about
-        // 96-98dB
-        //
-
-        double stopBandAtten;
-        double tbwCheat = 1.; // how much we "cheat" into aliasing
-        int halfLength;
-        if (mFilterQuality == DYN_HIGH_QUALITY) {
-            // 32b coefficients, 64 length
-            useS32 = true;
-            stopBandAtten = 98.;
-            if (inSampleRate >= mSampleRate * 4) {
-                halfLength = 48;
-            } else if (inSampleRate >= mSampleRate * 2) {
-                halfLength = 40;
-            } else {
-                halfLength = 32;
-            }
-        } else if (mFilterQuality == DYN_LOW_QUALITY) {
-            // 16b coefficients, 16-32 length
-            useS32 = false;
-            stopBandAtten = 80.;
-            if (inSampleRate >= mSampleRate * 4) {
-                halfLength = 24;
-            } else if (inSampleRate >= mSampleRate * 2) {
-                halfLength = 16;
-            } else {
-                halfLength = 8;
-            }
-            if (inSampleRate <= mSampleRate) {
-                tbwCheat = 1.05;
-            } else {
-                tbwCheat = 1.03;
-            }
-        } else { // DYN_MED_QUALITY
-            // 16b coefficients, 32-64 length
-            // note: > 64 length filters with 16b coefs can have quantization noise problems
-            useS32 = false;
-            stopBandAtten = 84.;
-            if (inSampleRate >= mSampleRate * 4) {
-                halfLength = 32;
-            } else if (inSampleRate >= mSampleRate * 2) {
-                halfLength = 24;
-            } else {
-                halfLength = 16;
-            }
-            if (inSampleRate <= mSampleRate) {
-                tbwCheat = 1.03;
-            } else {
-                tbwCheat = 1.01;
-            }
-        }
-
-        // determine the number of polyphases in the filterbank.
-        // for 16b, it is desirable to have 2^(16/2) = 256 phases.
-        // https://ccrma.stanford.edu/~jos/resample/Relation_Interpolation_Error_Quantization.html
-        //
-        // We are a bit more lax on this.
-
-        int phases = mSampleRate / gcd(mSampleRate, inSampleRate);
-
-        // TODO: Once dynamic sample rate change is an option, the code below
-        // should be modified to execute only when dynamic sample rate change is enabled.
-        //
-        // as above, #phases less than 63 is too few phases for accurate linear interpolation.
-        // we increase the phases to compensate, but more phases means more memory per
-        // filter and more time to compute the filter.
-        //
-        // if we know that the filter will be used for dynamic sample rate changes,
-        // that would allow us skip this part for fixed sample rate resamplers.
-        //
-        while (phases<63) {
-            phases *= 2; // this code only needed to support dynamic rate changes
-        }
-
-        if (phases>=256) {  // too many phases, always interpolate
-            phases = 127;
-        }
-
-        // create the filter
-        mConstants.set(phases, halfLength, inSampleRate, mSampleRate);
-        createKaiserFir(mConstants, stopBandAtten,
-                inSampleRate, mSampleRate, tbwCheat);
-    } // End Kaiser filter
-
-    // update phase and state based on the new filter.
-    const Constants& c(mConstants);
-    mInBuffer.resize(mChannelCount, c.mHalfNumCoefs);
-    const uint32_t phaseWrapLimit = c.mL << c.mShift;
-    // try to preserve as much of the phase fraction as possible for on-the-fly changes
-    mPhaseFraction = static_cast<unsigned long long>(mPhaseFraction)
-            * phaseWrapLimit / oldPhaseWrapLimit;
-    mPhaseFraction %= phaseWrapLimit; // should not do anything, but just in case.
-    mPhaseIncrement = static_cast<uint32_t>(static_cast<uint64_t>(phaseWrapLimit)
-            * inSampleRate / mSampleRate);
-
-    // determine which resampler to use
-    // check if locked phase (works only if mPhaseIncrement has no "fractional phase bits")
-    int locked = (mPhaseIncrement << (sizeof(mPhaseIncrement)*8 - c.mShift)) == 0;
-    if (locked) {
-        mPhaseFraction = mPhaseFraction >> c.mShift << c.mShift; // remove fractional phase
-    }
-
-    // stride is the minimum number of filter coefficients processed per loop iteration.
-    // We currently only allow a stride of 16 to match with SIMD processing.
-    // This means that the filter length must be a multiple of 16,
-    // or half the filter length (mHalfNumCoefs) must be a multiple of 8.
-    //
-    // Note: A stride of 2 is achieved with non-SIMD processing.
-    int stride = ((c.mHalfNumCoefs & 7) == 0) ? 16 : 2;
-    LOG_ALWAYS_FATAL_IF(stride < 16, "Resampler stride must be 16 or more");
-    LOG_ALWAYS_FATAL_IF(mChannelCount < 1 || mChannelCount > 8,
-            "Resampler channels(%d) must be between 1 to 8", mChannelCount);
-    // stride 16 (falls back to stride 2 for machines that do not support NEON)
-    if (locked) {
-        switch (mChannelCount) {
-        case 1:
-            mResampleFunc = &AudioResamplerDyn<TC, TI, TO>::resample<1, true, 16>;
-            break;
-        case 2:
-            mResampleFunc = &AudioResamplerDyn<TC, TI, TO>::resample<2, true, 16>;
-            break;
-        case 3:
-            mResampleFunc = &AudioResamplerDyn<TC, TI, TO>::resample<3, true, 16>;
-            break;
-        case 4:
-            mResampleFunc = &AudioResamplerDyn<TC, TI, TO>::resample<4, true, 16>;
-            break;
-        case 5:
-            mResampleFunc = &AudioResamplerDyn<TC, TI, TO>::resample<5, true, 16>;
-            break;
-        case 6:
-            mResampleFunc = &AudioResamplerDyn<TC, TI, TO>::resample<6, true, 16>;
-            break;
-        case 7:
-            mResampleFunc = &AudioResamplerDyn<TC, TI, TO>::resample<7, true, 16>;
-            break;
-        case 8:
-            mResampleFunc = &AudioResamplerDyn<TC, TI, TO>::resample<8, true, 16>;
-            break;
-        }
-    } else {
-        switch (mChannelCount) {
-        case 1:
-            mResampleFunc = &AudioResamplerDyn<TC, TI, TO>::resample<1, false, 16>;
-            break;
-        case 2:
-            mResampleFunc = &AudioResamplerDyn<TC, TI, TO>::resample<2, false, 16>;
-            break;
-        case 3:
-            mResampleFunc = &AudioResamplerDyn<TC, TI, TO>::resample<3, false, 16>;
-            break;
-        case 4:
-            mResampleFunc = &AudioResamplerDyn<TC, TI, TO>::resample<4, false, 16>;
-            break;
-        case 5:
-            mResampleFunc = &AudioResamplerDyn<TC, TI, TO>::resample<5, false, 16>;
-            break;
-        case 6:
-            mResampleFunc = &AudioResamplerDyn<TC, TI, TO>::resample<6, false, 16>;
-            break;
-        case 7:
-            mResampleFunc = &AudioResamplerDyn<TC, TI, TO>::resample<7, false, 16>;
-            break;
-        case 8:
-            mResampleFunc = &AudioResamplerDyn<TC, TI, TO>::resample<8, false, 16>;
-            break;
-        }
-    }
-#ifdef DEBUG_RESAMPLER
-    printf("channels:%d  %s  stride:%d  %s  coef:%d  shift:%d\n",
-            mChannelCount, locked ? "locked" : "interpolated",
-            stride, useS32 ? "S32" : "S16", 2*c.mHalfNumCoefs, c.mShift);
-#endif
-}
-
-template<typename TC, typename TI, typename TO>
-size_t AudioResamplerDyn<TC, TI, TO>::resample(int32_t* out, size_t outFrameCount,
-            AudioBufferProvider* provider)
-{
-    return (this->*mResampleFunc)(reinterpret_cast<TO*>(out), outFrameCount, provider);
-}
-
-template<typename TC, typename TI, typename TO>
-template<int CHANNELS, bool LOCKED, int STRIDE>
-size_t AudioResamplerDyn<TC, TI, TO>::resample(TO* out, size_t outFrameCount,
-        AudioBufferProvider* provider)
-{
-    // TODO Mono -> Mono is not supported. OUTPUT_CHANNELS reflects minimum of stereo out.
-    const int OUTPUT_CHANNELS = (CHANNELS < 2) ? 2 : CHANNELS;
-    const Constants& c(mConstants);
-    const TC* const coefs = mConstants.mFirCoefs;
-    TI* impulse = mInBuffer.getImpulse();
-    size_t inputIndex = 0;
-    uint32_t phaseFraction = mPhaseFraction;
-    const uint32_t phaseIncrement = mPhaseIncrement;
-    size_t outputIndex = 0;
-    size_t outputSampleCount = outFrameCount * OUTPUT_CHANNELS;
-    const uint32_t phaseWrapLimit = c.mL << c.mShift;
-    size_t inFrameCount = (phaseIncrement * (uint64_t)outFrameCount + phaseFraction)
-            / phaseWrapLimit;
-    // sanity check that inFrameCount is in signed 32 bit integer range.
-    ALOG_ASSERT(0 <= inFrameCount && inFrameCount < (1U << 31));
-
-    //ALOGV("inFrameCount:%d  outFrameCount:%d"
-    //        "  phaseIncrement:%u  phaseFraction:%u  phaseWrapLimit:%u",
-    //        inFrameCount, outFrameCount, phaseIncrement, phaseFraction, phaseWrapLimit);
-
-    // NOTE: be very careful when modifying the code here. register
-    // pressure is very high and a small change might cause the compiler
-    // to generate far less efficient code.
-    // Always sanity check the result with objdump or test-resample.
-
-    // the following logic is a bit convoluted to keep the main processing loop
-    // as tight as possible with register allocation.
-    while (outputIndex < outputSampleCount) {
-        //ALOGV("LOOP: inFrameCount:%d  outputIndex:%d  outFrameCount:%d"
-        //        "  phaseFraction:%u  phaseWrapLimit:%u",
-        //        inFrameCount, outputIndex, outFrameCount, phaseFraction, phaseWrapLimit);
-
-        // check inputIndex overflow
-        ALOG_ASSERT(inputIndex <= mBuffer.frameCount, "inputIndex%zu > frameCount%zu",
-                inputIndex, mBuffer.frameCount);
-        // Buffer is empty, fetch a new one if necessary (inFrameCount > 0).
-        // We may not fetch a new buffer if the existing data is sufficient.
-        while (mBuffer.frameCount == 0 && inFrameCount > 0) {
-            mBuffer.frameCount = inFrameCount;
-            provider->getNextBuffer(&mBuffer);
-            if (mBuffer.raw == NULL) {
-                goto resample_exit;
-            }
-            inFrameCount -= mBuffer.frameCount;
-            if (phaseFraction >= phaseWrapLimit) { // read in data
-                mInBuffer.template readAdvance<CHANNELS>(
-                        impulse, c.mHalfNumCoefs,
-                        reinterpret_cast<TI*>(mBuffer.raw), inputIndex);
-                inputIndex++;
-                phaseFraction -= phaseWrapLimit;
-                while (phaseFraction >= phaseWrapLimit) {
-                    if (inputIndex >= mBuffer.frameCount) {
-                        inputIndex = 0;
-                        provider->releaseBuffer(&mBuffer);
-                        break;
-                    }
-                    mInBuffer.template readAdvance<CHANNELS>(
-                            impulse, c.mHalfNumCoefs,
-                            reinterpret_cast<TI*>(mBuffer.raw), inputIndex);
-                    inputIndex++;
-                    phaseFraction -= phaseWrapLimit;
-                }
-            }
-        }
-        const TI* const in = reinterpret_cast<const TI*>(mBuffer.raw);
-        const size_t frameCount = mBuffer.frameCount;
-        const int coefShift = c.mShift;
-        const int halfNumCoefs = c.mHalfNumCoefs;
-        const TO* const volumeSimd = mVolumeSimd;
-
-        // main processing loop
-        while (CC_LIKELY(outputIndex < outputSampleCount)) {
-            // caution: fir() is inlined and may be large.
-            // output will be loaded with the appropriate values
-            //
-            // from the input samples in impulse[-halfNumCoefs+1]... impulse[halfNumCoefs]
-            // from the polyphase filter of (phaseFraction / phaseWrapLimit) in coefs.
-            //
-            //ALOGV("LOOP2: inFrameCount:%d  outputIndex:%d  outFrameCount:%d"
-            //        "  phaseFraction:%u  phaseWrapLimit:%u",
-            //        inFrameCount, outputIndex, outFrameCount, phaseFraction, phaseWrapLimit);
-            ALOG_ASSERT(phaseFraction < phaseWrapLimit);
-            fir<CHANNELS, LOCKED, STRIDE>(
-                    &out[outputIndex],
-                    phaseFraction, phaseWrapLimit,
-                    coefShift, halfNumCoefs, coefs,
-                    impulse, volumeSimd);
-
-            outputIndex += OUTPUT_CHANNELS;
-
-            phaseFraction += phaseIncrement;
-            while (phaseFraction >= phaseWrapLimit) {
-                if (inputIndex >= frameCount) {
-                    goto done;  // need a new buffer
-                }
-                mInBuffer.template readAdvance<CHANNELS>(impulse, halfNumCoefs, in, inputIndex);
-                inputIndex++;
-                phaseFraction -= phaseWrapLimit;
-            }
-        }
-done:
-        // We arrive here when we're finished or when the input buffer runs out.
-        // Regardless we need to release the input buffer if we've acquired it.
-        if (inputIndex > 0) {  // we've acquired a buffer (alternatively could check frameCount)
-            ALOG_ASSERT(inputIndex == frameCount, "inputIndex(%zu) != frameCount(%zu)",
-                    inputIndex, frameCount);  // must have been fully read.
-            inputIndex = 0;
-            provider->releaseBuffer(&mBuffer);
-            ALOG_ASSERT(mBuffer.frameCount == 0);
-        }
-    }
-
-resample_exit:
-    // inputIndex must be zero in all three cases:
-    // (1) the buffer never was been acquired; (2) the buffer was
-    // released at "done:"; or (3) getNextBuffer() failed.
-    ALOG_ASSERT(inputIndex == 0, "Releasing: inputindex:%zu frameCount:%zu  phaseFraction:%u",
-            inputIndex, mBuffer.frameCount, phaseFraction);
-    ALOG_ASSERT(mBuffer.frameCount == 0); // there must be no frames in the buffer
-    mInBuffer.setImpulse(impulse);
-    mPhaseFraction = phaseFraction;
-    return outputIndex / OUTPUT_CHANNELS;
-}
-
-/* instantiate templates used by AudioResampler::create */
-template class AudioResamplerDyn<float, float, float>;
-template class AudioResamplerDyn<int16_t, int16_t, int32_t>;
-template class AudioResamplerDyn<int32_t, int16_t, int32_t>;
-
-// ----------------------------------------------------------------------------
-} // namespace android
diff --git a/services/audioflinger/AudioResamplerDyn.h b/services/audioflinger/AudioResamplerDyn.h
deleted file mode 100644
index f8b8fa1..0000000
--- a/services/audioflinger/AudioResamplerDyn.h
+++ /dev/null
@@ -1,132 +0,0 @@
-/*
- * Copyright (C) 2013 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_AUDIO_RESAMPLER_DYN_H
-#define ANDROID_AUDIO_RESAMPLER_DYN_H
-
-#include <stdint.h>
-#include <sys/types.h>
-#include <android/log.h>
-
-#include "AudioResampler.h"
-
-namespace android {
-
-/* AudioResamplerDyn
- *
- * This class template is used for floating point and integer resamplers.
- *
- * Type variables:
- * TC = filter coefficient type (one of int16_t, int32_t, or float)
- * TI = input data type (one of int16_t or float)
- * TO = output data type (one of int32_t or float)
- *
- * For integer input data types TI, the coefficient type TC is either int16_t or int32_t.
- * For float input data types TI, the coefficient type TC is float.
- */
-
-template<typename TC, typename TI, typename TO>
-class AudioResamplerDyn: public AudioResampler {
-public:
-    AudioResamplerDyn(int inChannelCount,
-            int32_t sampleRate, src_quality quality);
-
-    virtual ~AudioResamplerDyn();
-
-    virtual void init();
-
-    virtual void setSampleRate(int32_t inSampleRate);
-
-    virtual void setVolume(float left, float right);
-
-    virtual size_t resample(int32_t* out, size_t outFrameCount,
-            AudioBufferProvider* provider);
-
-private:
-
-    class Constants { // stores the filter constants.
-    public:
-        Constants() :
-            mL(0), mShift(0), mHalfNumCoefs(0), mFirCoefs(NULL)
-        {}
-        void set(int L, int halfNumCoefs,
-                int inSampleRate, int outSampleRate);
-
-                 int mL;            // interpolation phases in the filter.
-                 int mShift;        // right shift to get polyphase index
-        unsigned int mHalfNumCoefs; // filter half #coefs
-           const TC* mFirCoefs;     // polyphase filter bank
-    };
-
-    class InBuffer { // buffer management for input type TI
-    public:
-        InBuffer();
-        ~InBuffer();
-        void init();
-
-        void resize(int CHANNELS, int halfNumCoefs);
-
-        // used for direct management of the mImpulse pointer
-        inline TI* getImpulse() {
-            return mImpulse;
-        }
-
-        inline void setImpulse(TI *impulse) {
-            mImpulse = impulse;
-        }
-
-        template<int CHANNELS>
-        inline void readAgain(TI*& impulse, const int halfNumCoefs,
-                const TI* const in, const size_t inputIndex);
-
-        template<int CHANNELS>
-        inline void readAdvance(TI*& impulse, const int halfNumCoefs,
-                const TI* const in, const size_t inputIndex);
-
-    private:
-        // tuning parameter guidelines: 2 <= multiple <= 8
-        static const int kStateSizeMultipleOfFilterLength = 4;
-
-        // in general, mRingFull = mState + mStateSize - halfNumCoefs*CHANNELS.
-           TI* mState;      // base pointer for the input buffer storage
-           TI* mImpulse;    // current location of the impulse response (centered)
-           TI* mRingFull;   // mState <= mImpulse < mRingFull
-        size_t mStateCount; // size of state in units of TI.
-    };
-
-    void createKaiserFir(Constants &c, double stopBandAtten,
-            int inSampleRate, int outSampleRate, double tbwCheat);
-
-    template<int CHANNELS, bool LOCKED, int STRIDE>
-    size_t resample(TO* out, size_t outFrameCount, AudioBufferProvider* provider);
-
-    // define a pointer to member function type for resample
-    typedef size_t (AudioResamplerDyn<TC, TI, TO>::*resample_ABP_t)(TO* out,
-            size_t outFrameCount, AudioBufferProvider* provider);
-
-    // data - the contiguous storage and layout of these is important.
-           InBuffer mInBuffer;
-          Constants mConstants;        // current set of coefficient parameters
-    TO __attribute__ ((aligned (8))) mVolumeSimd[2]; // must be aligned or NEON may crash
-     resample_ABP_t mResampleFunc;     // called function for resampling
-            int32_t mFilterSampleRate; // designed filter sample rate.
-        src_quality mFilterQuality;    // designed filter quality.
-              void* mCoefBuffer;       // if a filter is created, this is not null
-};
-
-} // namespace android
-
-#endif /*ANDROID_AUDIO_RESAMPLER_DYN_H*/
diff --git a/services/audioflinger/AudioResamplerFirOps.h b/services/audioflinger/AudioResamplerFirOps.h
deleted file mode 100644
index 776903c..0000000
--- a/services/audioflinger/AudioResamplerFirOps.h
+++ /dev/null
@@ -1,174 +0,0 @@
-/*
- * Copyright (C) 2013 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_AUDIO_RESAMPLER_FIR_OPS_H
-#define ANDROID_AUDIO_RESAMPLER_FIR_OPS_H
-
-namespace android {
-
-#if defined(__arm__) && !defined(__thumb__)
-#define USE_INLINE_ASSEMBLY (true)
-#else
-#define USE_INLINE_ASSEMBLY (false)
-#endif
-
-#if defined(__aarch64__) || defined(__ARM_NEON__)
-#ifndef USE_NEON
-#define USE_NEON (true)
-#endif
-#else
-#define USE_NEON (false)
-#endif
-#if USE_NEON
-#include <arm_neon.h>
-#endif
-
-#if defined(__SSSE3__)  // Should be supported in x86 ABI for both 32 & 64-bit.
-#define USE_SSE (true)
-#include <tmmintrin.h>
-#else
-#define USE_SSE (false)
-#endif
-
-template<typename T, typename U>
-struct is_same
-{
-    static const bool value = false;
-};
-
-template<typename T>
-struct is_same<T, T>  // partial specialization
-{
-    static const bool value = true;
-};
-
-static inline
-int32_t mulRL(int left, int32_t in, uint32_t vRL)
-{
-#if USE_INLINE_ASSEMBLY
-    int32_t out;
-    if (left) {
-        asm( "smultb %[out], %[in], %[vRL] \n"
-             : [out]"=r"(out)
-             : [in]"%r"(in), [vRL]"r"(vRL)
-             : );
-    } else {
-        asm( "smultt %[out], %[in], %[vRL] \n"
-             : [out]"=r"(out)
-             : [in]"%r"(in), [vRL]"r"(vRL)
-             : );
-    }
-    return out;
-#else
-    int16_t v = left ? static_cast<int16_t>(vRL) : static_cast<int16_t>(vRL>>16);
-    return static_cast<int32_t>((static_cast<int64_t>(in) * v) >> 16);
-#endif
-}
-
-static inline
-int32_t mulAdd(int16_t in, int16_t v, int32_t a)
-{
-#if USE_INLINE_ASSEMBLY
-    int32_t out;
-    asm( "smlabb %[out], %[v], %[in], %[a] \n"
-         : [out]"=r"(out)
-         : [in]"%r"(in), [v]"r"(v), [a]"r"(a)
-         : );
-    return out;
-#else
-    return a + v * in;
-#endif
-}
-
-static inline
-int32_t mulAdd(int16_t in, int32_t v, int32_t a)
-{
-#if USE_INLINE_ASSEMBLY
-    int32_t out;
-    asm( "smlawb %[out], %[v], %[in], %[a] \n"
-         : [out]"=r"(out)
-         : [in]"%r"(in), [v]"r"(v), [a]"r"(a)
-         : );
-    return out;
-#else
-    return a + static_cast<int32_t>((static_cast<int64_t>(v) * in) >> 16);
-#endif
-}
-
-static inline
-int32_t mulAdd(int32_t in, int32_t v, int32_t a)
-{
-#if USE_INLINE_ASSEMBLY
-    int32_t out;
-    asm( "smmla %[out], %[v], %[in], %[a] \n"
-         : [out]"=r"(out)
-         : [in]"%r"(in), [v]"r"(v), [a]"r"(a)
-         : );
-    return out;
-#else
-    return a + static_cast<int32_t>((static_cast<int64_t>(v) * in) >> 32);
-#endif
-}
-
-static inline
-int32_t mulAddRL(int left, uint32_t inRL, int16_t v, int32_t a)
-{
-#if USE_INLINE_ASSEMBLY
-    int32_t out;
-    if (left) {
-        asm( "smlabb %[out], %[v], %[inRL], %[a] \n"
-             : [out]"=r"(out)
-             : [inRL]"%r"(inRL), [v]"r"(v), [a]"r"(a)
-             : );
-    } else {
-        asm( "smlabt %[out], %[v], %[inRL], %[a] \n"
-             : [out]"=r"(out)
-             : [inRL]"%r"(inRL), [v]"r"(v), [a]"r"(a)
-             : );
-    }
-    return out;
-#else
-    int16_t s = left ? static_cast<int16_t>(inRL) : static_cast<int16_t>(inRL>>16);
-    return a + v * s;
-#endif
-}
-
-static inline
-int32_t mulAddRL(int left, uint32_t inRL, int32_t v, int32_t a)
-{
-#if USE_INLINE_ASSEMBLY
-    int32_t out;
-    if (left) {
-        asm( "smlawb %[out], %[v], %[inRL], %[a] \n"
-             : [out]"=r"(out)
-             : [inRL]"%r"(inRL), [v]"r"(v), [a]"r"(a)
-             : );
-    } else {
-        asm( "smlawt %[out], %[v], %[inRL], %[a] \n"
-             : [out]"=r"(out)
-             : [inRL]"%r"(inRL), [v]"r"(v), [a]"r"(a)
-             : );
-    }
-    return out;
-#else
-    int16_t s = left ? static_cast<int16_t>(inRL) : static_cast<int16_t>(inRL>>16);
-    return a + static_cast<int32_t>((static_cast<int64_t>(v) * s) >> 16);
-#endif
-}
-
-} // namespace android
-
-#endif /*ANDROID_AUDIO_RESAMPLER_FIR_OPS_H*/
diff --git a/services/audioflinger/AudioResamplerFirProcessNeon.h b/services/audioflinger/AudioResamplerFirProcessNeon.h
deleted file mode 100644
index 3de9edd..0000000
--- a/services/audioflinger/AudioResamplerFirProcessNeon.h
+++ /dev/null
@@ -1,1214 +0,0 @@
-/*
- * Copyright (C) 2013 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_AUDIO_RESAMPLER_FIR_PROCESS_NEON_H
-#define ANDROID_AUDIO_RESAMPLER_FIR_PROCESS_NEON_H
-
-namespace android {
-
-// depends on AudioResamplerFirOps.h, AudioResamplerFirProcess.h
-
-#if USE_NEON
-
-// use intrinsics if inline arm32 assembly is not possible
-#if !USE_INLINE_ASSEMBLY
-#define USE_INTRINSIC
-#endif
-
-// following intrinsics available only on ARM 64 bit ACLE
-#ifndef __aarch64__
-#undef vld1q_f32_x2
-#undef vld1q_s32_x2
-#endif
-
-#define TO_STRING2(x) #x
-#define TO_STRING(x) TO_STRING2(x)
-// uncomment to print GCC version, may be relevant for intrinsic optimizations
-/* #pragma message ("GCC version: " TO_STRING(__GNUC__) \
-        "." TO_STRING(__GNUC_MINOR__) \
-        "." TO_STRING(__GNUC_PATCHLEVEL__)) */
-
-//
-// NEON specializations are enabled for Process() and ProcessL() in AudioResamplerFirProcess.h
-//
-// Two variants are presented here:
-// ARM NEON inline assembly which appears up to 10-15% faster than intrinsics (gcc 4.9) for arm32.
-// ARM NEON intrinsics which can also be used by arm64 and x86/64 with NEON header.
-//
-
-// Macros to save a mono/stereo accumulator sample in q0 (and q4) as stereo out.
-// These are only used for inline assembly.
-#define ASSEMBLY_ACCUMULATE_MONO \
-        "vld1.s32       {d2}, [%[vLR]:64]        \n"/* (1) load volumes */\
-        "vld1.s32       {d3}, %[out]             \n"/* (2) unaligned load the output */\
-        "vpadd.s32      d0, d0, d1               \n"/* (1) add all 4 partial sums */\
-        "vpadd.s32      d0, d0, d0               \n"/* (1+4d) and replicate L/R */\
-        "vqrdmulh.s32   d0, d0, d2               \n"/* (2+3d) apply volume */\
-        "vqadd.s32      d3, d3, d0               \n"/* (1+4d) accumulate result (saturating) */\
-        "vst1.s32       {d3}, %[out]             \n"/* (2+2d) store result */
-
-#define ASSEMBLY_ACCUMULATE_STEREO \
-        "vld1.s32       {d2}, [%[vLR]:64]        \n"/* (1) load volumes*/\
-        "vld1.s32       {d3}, %[out]             \n"/* (2) unaligned load the output*/\
-        "vpadd.s32      d0, d0, d1               \n"/* (1) add all 4 partial sums from q0*/\
-        "vpadd.s32      d8, d8, d9               \n"/* (1) add all 4 partial sums from q4*/\
-        "vpadd.s32      d0, d0, d8               \n"/* (1+4d) combine into L/R*/\
-        "vqrdmulh.s32   d0, d0, d2               \n"/* (2+3d) apply volume*/\
-        "vqadd.s32      d3, d3, d0               \n"/* (1+4d) accumulate result (saturating)*/\
-        "vst1.s32       {d3}, %[out]             \n"/* (2+2d)store result*/
-
-template <int CHANNELS, int STRIDE, bool FIXED>
-static inline void ProcessNeonIntrinsic(int32_t* out,
-        int count,
-        const int16_t* coefsP,
-        const int16_t* coefsN,
-        const int16_t* sP,
-        const int16_t* sN,
-        const int32_t* volumeLR,
-        uint32_t lerpP,
-        const int16_t* coefsP1,
-        const int16_t* coefsN1)
-{
-    ALOG_ASSERT(count > 0 && (count & 7) == 0); // multiple of 8
-    COMPILE_TIME_ASSERT_FUNCTION_SCOPE(CHANNELS == 1 || CHANNELS == 2);
-
-    sP -= CHANNELS*((STRIDE>>1)-1);
-    coefsP = (const int16_t*)__builtin_assume_aligned(coefsP, 16);
-    coefsN = (const int16_t*)__builtin_assume_aligned(coefsN, 16);
-
-    int16x4_t interp;
-    if (!FIXED) {
-        interp = vdup_n_s16(lerpP);
-        //interp = (int16x4_t)vset_lane_s32 ((int32x2_t)lerpP, interp, 0);
-        coefsP1 = (const int16_t*)__builtin_assume_aligned(coefsP1, 16);
-        coefsN1 = (const int16_t*)__builtin_assume_aligned(coefsN1, 16);
-    }
-    int32x4_t accum, accum2;
-    // warning uninitialized if we use veorq_s32
-    // (alternative to below) accum = veorq_s32(accum, accum);
-    accum = vdupq_n_s32(0);
-    if (CHANNELS == 2) {
-        // (alternative to below) accum2 = veorq_s32(accum2, accum2);
-        accum2 = vdupq_n_s32(0);
-    }
-    do {
-        int16x8_t posCoef = vld1q_s16(coefsP);
-        coefsP += 8;
-        int16x8_t negCoef = vld1q_s16(coefsN);
-        coefsN += 8;
-        if (!FIXED) { // interpolate
-            int16x8_t posCoef1 = vld1q_s16(coefsP1);
-            coefsP1 += 8;
-            int16x8_t negCoef1 = vld1q_s16(coefsN1);
-            coefsN1 += 8;
-
-            posCoef1 = vsubq_s16(posCoef1, posCoef);
-            negCoef = vsubq_s16(negCoef, negCoef1);
-
-            posCoef1 = vqrdmulhq_lane_s16(posCoef1, interp, 0);
-            negCoef = vqrdmulhq_lane_s16(negCoef, interp, 0);
-
-            posCoef = vaddq_s16(posCoef, posCoef1);
-            negCoef = vaddq_s16(negCoef, negCoef1);
-        }
-        switch (CHANNELS) {
-        case 1: {
-            int16x8_t posSamp = vld1q_s16(sP);
-            int16x8_t negSamp = vld1q_s16(sN);
-            sN += 8;
-            posSamp = vrev64q_s16(posSamp);
-
-            // dot product
-            accum = vmlal_s16(accum, vget_low_s16(posSamp), vget_high_s16(posCoef)); // reversed
-            accum = vmlal_s16(accum, vget_high_s16(posSamp), vget_low_s16(posCoef)); // reversed
-            accum = vmlal_s16(accum, vget_low_s16(negSamp), vget_low_s16(negCoef));
-            accum = vmlal_s16(accum, vget_high_s16(negSamp), vget_high_s16(negCoef));
-            sP -= 8;
-        } break;
-        case 2: {
-            int16x8x2_t posSamp = vld2q_s16(sP);
-            int16x8x2_t negSamp = vld2q_s16(sN);
-            sN += 16;
-            posSamp.val[0] = vrev64q_s16(posSamp.val[0]);
-            posSamp.val[1] = vrev64q_s16(posSamp.val[1]);
-
-            // dot product
-            accum = vmlal_s16(accum, vget_low_s16(posSamp.val[0]), vget_high_s16(posCoef)); // r
-            accum = vmlal_s16(accum, vget_high_s16(posSamp.val[0]), vget_low_s16(posCoef)); // r
-            accum2 = vmlal_s16(accum2, vget_low_s16(posSamp.val[1]), vget_high_s16(posCoef)); // r
-            accum2 = vmlal_s16(accum2, vget_high_s16(posSamp.val[1]), vget_low_s16(posCoef)); // r
-            accum = vmlal_s16(accum, vget_low_s16(negSamp.val[0]), vget_low_s16(negCoef));
-            accum = vmlal_s16(accum, vget_high_s16(negSamp.val[0]), vget_high_s16(negCoef));
-            accum2 = vmlal_s16(accum2, vget_low_s16(negSamp.val[1]), vget_low_s16(negCoef));
-            accum2 = vmlal_s16(accum2, vget_high_s16(negSamp.val[1]), vget_high_s16(negCoef));
-            sP -= 16;
-        }
-        } break;
-    } while (count -= 8);
-
-    // multiply by volume and save
-    volumeLR = (const int32_t*)__builtin_assume_aligned(volumeLR, 8);
-    int32x2_t vLR = vld1_s32(volumeLR);
-    int32x2_t outSamp = vld1_s32(out);
-    // combine and funnel down accumulator
-    int32x2_t outAccum = vpadd_s32(vget_low_s32(accum), vget_high_s32(accum));
-    if (CHANNELS == 1) {
-        // duplicate accum to both L and R
-        outAccum = vpadd_s32(outAccum, outAccum);
-    } else if (CHANNELS == 2) {
-        // accum2 contains R, fold in
-        int32x2_t outAccum2 = vpadd_s32(vget_low_s32(accum2), vget_high_s32(accum2));
-        outAccum = vpadd_s32(outAccum, outAccum2);
-    }
-    outAccum = vqrdmulh_s32(outAccum, vLR);
-    outSamp = vqadd_s32(outSamp, outAccum);
-    vst1_s32(out, outSamp);
-}
-
-template <int CHANNELS, int STRIDE, bool FIXED>
-static inline void ProcessNeonIntrinsic(int32_t* out,
-        int count,
-        const int32_t* coefsP,
-        const int32_t* coefsN,
-        const int16_t* sP,
-        const int16_t* sN,
-        const int32_t* volumeLR,
-        uint32_t lerpP,
-        const int32_t* coefsP1,
-        const int32_t* coefsN1)
-{
-    ALOG_ASSERT(count > 0 && (count & 7) == 0); // multiple of 8
-    COMPILE_TIME_ASSERT_FUNCTION_SCOPE(CHANNELS == 1 || CHANNELS == 2);
-
-    sP -= CHANNELS*((STRIDE>>1)-1);
-    coefsP = (const int32_t*)__builtin_assume_aligned(coefsP, 16);
-    coefsN = (const int32_t*)__builtin_assume_aligned(coefsN, 16);
-
-    int32x2_t interp;
-    if (!FIXED) {
-        interp = vdup_n_s32(lerpP);
-        coefsP1 = (const int32_t*)__builtin_assume_aligned(coefsP1, 16);
-        coefsN1 = (const int32_t*)__builtin_assume_aligned(coefsN1, 16);
-    }
-    int32x4_t accum, accum2;
-    // warning uninitialized if we use veorq_s32
-    // (alternative to below) accum = veorq_s32(accum, accum);
-    accum = vdupq_n_s32(0);
-    if (CHANNELS == 2) {
-        // (alternative to below) accum2 = veorq_s32(accum2, accum2);
-        accum2 = vdupq_n_s32(0);
-    }
-    do {
-#ifdef vld1q_s32_x2
-        int32x4x2_t posCoef = vld1q_s32_x2(coefsP);
-        coefsP += 8;
-        int32x4x2_t negCoef = vld1q_s32_x2(coefsN);
-        coefsN += 8;
-#else
-        int32x4x2_t posCoef;
-        posCoef.val[0] = vld1q_s32(coefsP);
-        coefsP += 4;
-        posCoef.val[1] = vld1q_s32(coefsP);
-        coefsP += 4;
-        int32x4x2_t negCoef;
-        negCoef.val[0] = vld1q_s32(coefsN);
-        coefsN += 4;
-        negCoef.val[1] = vld1q_s32(coefsN);
-        coefsN += 4;
-#endif
-        if (!FIXED) { // interpolate
-#ifdef vld1q_s32_x2
-            int32x4x2_t posCoef1 = vld1q_s32_x2(coefsP1);
-            coefsP1 += 8;
-            int32x4x2_t negCoef1 = vld1q_s32_x2(coefsN1);
-            coefsN1 += 8;
-#else
-            int32x4x2_t posCoef1;
-            posCoef1.val[0] = vld1q_s32(coefsP1);
-            coefsP1 += 4;
-            posCoef1.val[1] = vld1q_s32(coefsP1);
-            coefsP1 += 4;
-            int32x4x2_t negCoef1;
-            negCoef1.val[0] = vld1q_s32(coefsN1);
-            coefsN1 += 4;
-            negCoef1.val[1] = vld1q_s32(coefsN1);
-            coefsN1 += 4;
-#endif
-
-            posCoef1.val[0] = vsubq_s32(posCoef1.val[0], posCoef.val[0]);
-            posCoef1.val[1] = vsubq_s32(posCoef1.val[1], posCoef.val[1]);
-            negCoef.val[0] = vsubq_s32(negCoef.val[0], negCoef1.val[0]);
-            negCoef.val[1] = vsubq_s32(negCoef.val[1], negCoef1.val[1]);
-
-            posCoef1.val[0] = vqrdmulhq_lane_s32(posCoef1.val[0], interp, 0);
-            posCoef1.val[1] = vqrdmulhq_lane_s32(posCoef1.val[1], interp, 0);
-            negCoef.val[0] = vqrdmulhq_lane_s32(negCoef.val[0], interp, 0);
-            negCoef.val[1] = vqrdmulhq_lane_s32(negCoef.val[1], interp, 0);
-
-            posCoef.val[0] = vaddq_s32(posCoef.val[0], posCoef1.val[0]);
-            posCoef.val[1] = vaddq_s32(posCoef.val[1], posCoef1.val[1]);
-            negCoef.val[0] = vaddq_s32(negCoef.val[0], negCoef1.val[0]);
-            negCoef.val[1] = vaddq_s32(negCoef.val[1], negCoef1.val[1]);
-        }
-        switch (CHANNELS) {
-        case 1: {
-            int16x8_t posSamp = vld1q_s16(sP);
-            int16x8_t negSamp = vld1q_s16(sN);
-            sN += 8;
-            posSamp = vrev64q_s16(posSamp);
-
-            int32x4_t posSamp0 = vshll_n_s16(vget_low_s16(posSamp), 15);
-            int32x4_t posSamp1 = vshll_n_s16(vget_high_s16(posSamp), 15);
-            int32x4_t negSamp0 = vshll_n_s16(vget_low_s16(negSamp), 15);
-            int32x4_t negSamp1 = vshll_n_s16(vget_high_s16(negSamp), 15);
-
-            // dot product
-            posSamp0 = vqrdmulhq_s32(posSamp0, posCoef.val[1]); // reversed
-            posSamp1 = vqrdmulhq_s32(posSamp1, posCoef.val[0]); // reversed
-            negSamp0 = vqrdmulhq_s32(negSamp0, negCoef.val[0]);
-            negSamp1 = vqrdmulhq_s32(negSamp1, negCoef.val[1]);
-
-            accum = vaddq_s32(accum, posSamp0);
-            negSamp0 = vaddq_s32(negSamp0, negSamp1);
-            accum = vaddq_s32(accum, posSamp1);
-            accum = vaddq_s32(accum, negSamp0);
-
-            sP -= 8;
-        } break;
-        case 2: {
-            int16x8x2_t posSamp = vld2q_s16(sP);
-            int16x8x2_t negSamp = vld2q_s16(sN);
-            sN += 16;
-            posSamp.val[0] = vrev64q_s16(posSamp.val[0]);
-            posSamp.val[1] = vrev64q_s16(posSamp.val[1]);
-
-            // left
-            int32x4_t posSamp0 = vshll_n_s16(vget_low_s16(posSamp.val[0]), 15);
-            int32x4_t posSamp1 = vshll_n_s16(vget_high_s16(posSamp.val[0]), 15);
-            int32x4_t negSamp0 = vshll_n_s16(vget_low_s16(negSamp.val[0]), 15);
-            int32x4_t negSamp1 = vshll_n_s16(vget_high_s16(negSamp.val[0]), 15);
-
-            // dot product
-            posSamp0 = vqrdmulhq_s32(posSamp0, posCoef.val[1]); // reversed
-            posSamp1 = vqrdmulhq_s32(posSamp1, posCoef.val[0]); // reversed
-            negSamp0 = vqrdmulhq_s32(negSamp0, negCoef.val[0]);
-            negSamp1 = vqrdmulhq_s32(negSamp1, negCoef.val[1]);
-
-            accum = vaddq_s32(accum, posSamp0);
-            negSamp0 = vaddq_s32(negSamp0, negSamp1);
-            accum = vaddq_s32(accum, posSamp1);
-            accum = vaddq_s32(accum, negSamp0);
-
-            // right
-            posSamp0 = vshll_n_s16(vget_low_s16(posSamp.val[1]), 15);
-            posSamp1 = vshll_n_s16(vget_high_s16(posSamp.val[1]), 15);
-            negSamp0 = vshll_n_s16(vget_low_s16(negSamp.val[1]), 15);
-            negSamp1 = vshll_n_s16(vget_high_s16(negSamp.val[1]), 15);
-
-            // dot product
-            posSamp0 = vqrdmulhq_s32(posSamp0, posCoef.val[1]); // reversed
-            posSamp1 = vqrdmulhq_s32(posSamp1, posCoef.val[0]); // reversed
-            negSamp0 = vqrdmulhq_s32(negSamp0, negCoef.val[0]);
-            negSamp1 = vqrdmulhq_s32(negSamp1, negCoef.val[1]);
-
-            accum2 = vaddq_s32(accum2, posSamp0);
-            negSamp0 = vaddq_s32(negSamp0, negSamp1);
-            accum2 = vaddq_s32(accum2, posSamp1);
-            accum2 = vaddq_s32(accum2, negSamp0);
-
-            sP -= 16;
-        } break;
-        }
-    } while (count -= 8);
-
-    // multiply by volume and save
-    volumeLR = (const int32_t*)__builtin_assume_aligned(volumeLR, 8);
-    int32x2_t vLR = vld1_s32(volumeLR);
-    int32x2_t outSamp = vld1_s32(out);
-    // combine and funnel down accumulator
-    int32x2_t outAccum = vpadd_s32(vget_low_s32(accum), vget_high_s32(accum));
-    if (CHANNELS == 1) {
-        // duplicate accum to both L and R
-        outAccum = vpadd_s32(outAccum, outAccum);
-    } else if (CHANNELS == 2) {
-        // accum2 contains R, fold in
-        int32x2_t outAccum2 = vpadd_s32(vget_low_s32(accum2), vget_high_s32(accum2));
-        outAccum = vpadd_s32(outAccum, outAccum2);
-    }
-    outAccum = vqrdmulh_s32(outAccum, vLR);
-    outSamp = vqadd_s32(outSamp, outAccum);
-    vst1_s32(out, outSamp);
-}
-
-template <int CHANNELS, int STRIDE, bool FIXED>
-static inline void ProcessNeonIntrinsic(float* out,
-        int count,
-        const float* coefsP,
-        const float* coefsN,
-        const float* sP,
-        const float* sN,
-        const float* volumeLR,
-        float lerpP,
-        const float* coefsP1,
-        const float* coefsN1)
-{
-    ALOG_ASSERT(count > 0 && (count & 7) == 0); // multiple of 8
-    COMPILE_TIME_ASSERT_FUNCTION_SCOPE(CHANNELS == 1 || CHANNELS == 2);
-
-    sP -= CHANNELS*((STRIDE>>1)-1);
-    coefsP = (const float*)__builtin_assume_aligned(coefsP, 16);
-    coefsN = (const float*)__builtin_assume_aligned(coefsN, 16);
-
-    float32x2_t interp;
-    if (!FIXED) {
-        interp = vdup_n_f32(lerpP);
-        coefsP1 = (const float*)__builtin_assume_aligned(coefsP1, 16);
-        coefsN1 = (const float*)__builtin_assume_aligned(coefsN1, 16);
-    }
-    float32x4_t accum, accum2;
-    // warning uninitialized if we use veorq_s32
-    // (alternative to below) accum = veorq_s32(accum, accum);
-    accum = vdupq_n_f32(0);
-    if (CHANNELS == 2) {
-        // (alternative to below) accum2 = veorq_s32(accum2, accum2);
-        accum2 = vdupq_n_f32(0);
-    }
-    do {
-#ifdef vld1q_f32_x2
-        float32x4x2_t posCoef = vld1q_f32_x2(coefsP);
-        coefsP += 8;
-        float32x4x2_t negCoef = vld1q_f32_x2(coefsN);
-        coefsN += 8;
-#else
-        float32x4x2_t posCoef;
-        posCoef.val[0] = vld1q_f32(coefsP);
-        coefsP += 4;
-        posCoef.val[1] = vld1q_f32(coefsP);
-        coefsP += 4;
-        float32x4x2_t negCoef;
-        negCoef.val[0] = vld1q_f32(coefsN);
-        coefsN += 4;
-        negCoef.val[1] = vld1q_f32(coefsN);
-        coefsN += 4;
-#endif
-        if (!FIXED) { // interpolate
-#ifdef vld1q_f32_x2
-            float32x4x2_t posCoef1 = vld1q_f32_x2(coefsP1);
-            coefsP1 += 8;
-            float32x4x2_t negCoef1 = vld1q_f32_x2(coefsN1);
-            coefsN1 += 8;
-#else
-            float32x4x2_t posCoef1;
-            posCoef1.val[0] = vld1q_f32(coefsP1);
-            coefsP1 += 4;
-            posCoef1.val[1] = vld1q_f32(coefsP1);
-            coefsP1 += 4;
-            float32x4x2_t negCoef1;
-            negCoef1.val[0] = vld1q_f32(coefsN1);
-            coefsN1 += 4;
-            negCoef1.val[1] = vld1q_f32(coefsN1);
-            coefsN1 += 4;
-#endif
-            posCoef1.val[0] = vsubq_f32(posCoef1.val[0], posCoef.val[0]);
-            posCoef1.val[1] = vsubq_f32(posCoef1.val[1], posCoef.val[1]);
-            negCoef.val[0] = vsubq_f32(negCoef.val[0], negCoef1.val[0]);
-            negCoef.val[1] = vsubq_f32(negCoef.val[1], negCoef1.val[1]);
-
-            posCoef.val[0] = vmlaq_lane_f32(posCoef.val[0], posCoef1.val[0], interp, 0);
-            posCoef.val[1] = vmlaq_lane_f32(posCoef.val[1], posCoef1.val[1], interp, 0);
-            negCoef.val[0] = vmlaq_lane_f32(negCoef1.val[0], negCoef.val[0], interp, 0); // rev
-            negCoef.val[1] = vmlaq_lane_f32(negCoef1.val[1], negCoef.val[1], interp, 0); // rev
-        }
-        switch (CHANNELS) {
-        case 1: {
-#ifdef vld1q_f32_x2
-            float32x4x2_t posSamp = vld1q_f32_x2(sP);
-            float32x4x2_t negSamp = vld1q_f32_x2(sN);
-            sN += 8;
-            sP -= 8;
-#else
-            float32x4x2_t posSamp;
-            posSamp.val[0] = vld1q_f32(sP);
-            sP += 4;
-            posSamp.val[1] = vld1q_f32(sP);
-            sP -= 12;
-            float32x4x2_t negSamp;
-            negSamp.val[0] = vld1q_f32(sN);
-            sN += 4;
-            negSamp.val[1] = vld1q_f32(sN);
-            sN += 4;
-#endif
-            // effectively we want a vrev128q_f32()
-            posSamp.val[0] = vrev64q_f32(posSamp.val[0]);
-            posSamp.val[1] = vrev64q_f32(posSamp.val[1]);
-            posSamp.val[0] = vcombine_f32(
-                    vget_high_f32(posSamp.val[0]), vget_low_f32(posSamp.val[0]));
-            posSamp.val[1] = vcombine_f32(
-                    vget_high_f32(posSamp.val[1]), vget_low_f32(posSamp.val[1]));
-
-            accum = vmlaq_f32(accum, posSamp.val[0], posCoef.val[1]);
-            accum = vmlaq_f32(accum, posSamp.val[1], posCoef.val[0]);
-            accum = vmlaq_f32(accum, negSamp.val[0], negCoef.val[0]);
-            accum = vmlaq_f32(accum, negSamp.val[1], negCoef.val[1]);
-        } break;
-        case 2: {
-            float32x4x2_t posSamp0 = vld2q_f32(sP);
-            sP += 8;
-            float32x4x2_t negSamp0 = vld2q_f32(sN);
-            sN += 8;
-            posSamp0.val[0] = vrev64q_f32(posSamp0.val[0]);
-            posSamp0.val[1] = vrev64q_f32(posSamp0.val[1]);
-            posSamp0.val[0] = vcombine_f32(
-                    vget_high_f32(posSamp0.val[0]), vget_low_f32(posSamp0.val[0]));
-            posSamp0.val[1] = vcombine_f32(
-                    vget_high_f32(posSamp0.val[1]), vget_low_f32(posSamp0.val[1]));
-
-            float32x4x2_t posSamp1 = vld2q_f32(sP);
-            sP -= 24;
-            float32x4x2_t negSamp1 = vld2q_f32(sN);
-            sN += 8;
-            posSamp1.val[0] = vrev64q_f32(posSamp1.val[0]);
-            posSamp1.val[1] = vrev64q_f32(posSamp1.val[1]);
-            posSamp1.val[0] = vcombine_f32(
-                    vget_high_f32(posSamp1.val[0]), vget_low_f32(posSamp1.val[0]));
-            posSamp1.val[1] = vcombine_f32(
-                    vget_high_f32(posSamp1.val[1]), vget_low_f32(posSamp1.val[1]));
-
-            // Note: speed is affected by accumulation order.
-            // Also, speed appears slower using vmul/vadd instead of vmla for
-            // stereo case, comparable for mono.
-
-            accum = vmlaq_f32(accum, negSamp0.val[0], negCoef.val[0]);
-            accum = vmlaq_f32(accum, negSamp1.val[0], negCoef.val[1]);
-            accum2 = vmlaq_f32(accum2, negSamp0.val[1], negCoef.val[0]);
-            accum2 = vmlaq_f32(accum2, negSamp1.val[1], negCoef.val[1]);
-
-            accum = vmlaq_f32(accum, posSamp0.val[0], posCoef.val[1]); // reversed
-            accum = vmlaq_f32(accum, posSamp1.val[0], posCoef.val[0]); // reversed
-            accum2 = vmlaq_f32(accum2, posSamp0.val[1], posCoef.val[1]); // reversed
-            accum2 = vmlaq_f32(accum2, posSamp1.val[1], posCoef.val[0]); // reversed
-        } break;
-        }
-    } while (count -= 8);
-
-    // multiply by volume and save
-    volumeLR = (const float*)__builtin_assume_aligned(volumeLR, 8);
-    float32x2_t vLR = vld1_f32(volumeLR);
-    float32x2_t outSamp = vld1_f32(out);
-    // combine and funnel down accumulator
-    float32x2_t outAccum = vpadd_f32(vget_low_f32(accum), vget_high_f32(accum));
-    if (CHANNELS == 1) {
-        // duplicate accum to both L and R
-        outAccum = vpadd_f32(outAccum, outAccum);
-    } else if (CHANNELS == 2) {
-        // accum2 contains R, fold in
-        float32x2_t outAccum2 = vpadd_f32(vget_low_f32(accum2), vget_high_f32(accum2));
-        outAccum = vpadd_f32(outAccum, outAccum2);
-    }
-    outSamp = vmla_f32(outSamp, outAccum, vLR);
-    vst1_f32(out, outSamp);
-}
-
-template <>
-inline void ProcessL<1, 16>(int32_t* const out,
-        int count,
-        const int16_t* coefsP,
-        const int16_t* coefsN,
-        const int16_t* sP,
-        const int16_t* sN,
-        const int32_t* const volumeLR)
-{
-#ifdef USE_INTRINSIC
-    ProcessNeonIntrinsic<1, 16, true>(out, count, coefsP, coefsN, sP, sN, volumeLR,
-            0 /*lerpP*/, NULL /*coefsP1*/, NULL /*coefsN1*/);
-#else
-    const int CHANNELS = 1; // template specialization does not preserve params
-    const int STRIDE = 16;
-    sP -= CHANNELS*((STRIDE>>1)-1);
-    asm (
-        "veor           q0, q0, q0               \n"// (0 - combines+) accumulator = 0
-
-        "1:                                      \n"
-
-        "vld1.16        {q2}, [%[sP]]            \n"// (2+0d) load 8 16-bits mono samples
-        "vld1.16        {q3}, [%[sN]]!           \n"// (2) load 8 16-bits mono samples
-        "vld1.16        {q8}, [%[coefsP0]:128]!  \n"// (1) load 8 16-bits coefs
-        "vld1.16        {q10}, [%[coefsN0]:128]! \n"// (1) load 8 16-bits coefs
-
-        "vrev64.16      q2, q2                   \n"// (1) reverse s3, s2, s1, s0, s7, s6, s5, s4
-
-        // reordering the vmal to do d6, d7 before d4, d5 is slower(?)
-        "vmlal.s16      q0, d4, d17              \n"// (1+0d) multiply (reversed)samples by coef
-        "vmlal.s16      q0, d5, d16              \n"// (1) multiply (reversed)samples by coef
-        "vmlal.s16      q0, d6, d20              \n"// (1) multiply neg samples
-        "vmlal.s16      q0, d7, d21              \n"// (1) multiply neg samples
-
-        // moving these ARM instructions before neon above seems to be slower
-        "subs           %[count], %[count], #8   \n"// (1) update loop counter
-        "sub            %[sP], %[sP], #16        \n"// (0) move pointer to next set of samples
-
-        // sP used after branch (warning)
-        "bne            1b                       \n"// loop
-
-         ASSEMBLY_ACCUMULATE_MONO
-
-        : [out]     "=Uv" (out[0]),
-          [count]   "+r" (count),
-          [coefsP0] "+r" (coefsP),
-          [coefsN0] "+r" (coefsN),
-          [sP]      "+r" (sP),
-          [sN]      "+r" (sN)
-        : [vLR]     "r" (volumeLR)
-        : "cc", "memory",
-          "q0", "q1", "q2", "q3",
-          "q8", "q10"
-    );
-#endif
-}
-
-template <>
-inline void ProcessL<2, 16>(int32_t* const out,
-        int count,
-        const int16_t* coefsP,
-        const int16_t* coefsN,
-        const int16_t* sP,
-        const int16_t* sN,
-        const int32_t* const volumeLR)
-{
-#ifdef USE_INTRINSIC
-    ProcessNeonIntrinsic<2, 16, true>(out, count, coefsP, coefsN, sP, sN, volumeLR,
-            0 /*lerpP*/, NULL /*coefsP1*/, NULL /*coefsN1*/);
-#else
-    const int CHANNELS = 2; // template specialization does not preserve params
-    const int STRIDE = 16;
-    sP -= CHANNELS*((STRIDE>>1)-1);
-    asm (
-        "veor           q0, q0, q0               \n"// (1) acc_L = 0
-        "veor           q4, q4, q4               \n"// (0 combines+) acc_R = 0
-
-        "1:                                      \n"
-
-        "vld2.16        {q2, q3}, [%[sP]]        \n"// (3+0d) load 8 16-bits stereo frames
-        "vld2.16        {q5, q6}, [%[sN]]!       \n"// (3) load 8 16-bits stereo frames
-        "vld1.16        {q8}, [%[coefsP0]:128]!  \n"// (1) load 8 16-bits coefs
-        "vld1.16        {q10}, [%[coefsN0]:128]! \n"// (1) load 8 16-bits coefs
-
-        "vrev64.16      q2, q2                   \n"// (1) reverse 8 samples of positive left
-        "vrev64.16      q3, q3                   \n"// (0 combines+) reverse positive right
-
-        "vmlal.s16      q0, d4, d17              \n"// (1) multiply (reversed) samples left
-        "vmlal.s16      q0, d5, d16              \n"// (1) multiply (reversed) samples left
-        "vmlal.s16      q4, d6, d17              \n"// (1) multiply (reversed) samples right
-        "vmlal.s16      q4, d7, d16              \n"// (1) multiply (reversed) samples right
-        "vmlal.s16      q0, d10, d20             \n"// (1) multiply samples left
-        "vmlal.s16      q0, d11, d21             \n"// (1) multiply samples left
-        "vmlal.s16      q4, d12, d20             \n"// (1) multiply samples right
-        "vmlal.s16      q4, d13, d21             \n"// (1) multiply samples right
-
-        // moving these ARM before neon seems to be slower
-        "subs           %[count], %[count], #8   \n"// (1) update loop counter
-        "sub            %[sP], %[sP], #32        \n"// (0) move pointer to next set of samples
-
-        // sP used after branch (warning)
-        "bne            1b                       \n"// loop
-
-        ASSEMBLY_ACCUMULATE_STEREO
-
-        : [out] "=Uv" (out[0]),
-          [count] "+r" (count),
-          [coefsP0] "+r" (coefsP),
-          [coefsN0] "+r" (coefsN),
-          [sP] "+r" (sP),
-          [sN] "+r" (sN)
-        : [vLR] "r" (volumeLR)
-        : "cc", "memory",
-          "q0", "q1", "q2", "q3",
-          "q4", "q5", "q6",
-          "q8", "q10"
-     );
-#endif
-}
-
-template <>
-inline void Process<1, 16>(int32_t* const out,
-        int count,
-        const int16_t* coefsP,
-        const int16_t* coefsN,
-        const int16_t* coefsP1,
-        const int16_t* coefsN1,
-        const int16_t* sP,
-        const int16_t* sN,
-        uint32_t lerpP,
-        const int32_t* const volumeLR)
-{
-#ifdef USE_INTRINSIC
-    ProcessNeonIntrinsic<1, 16, false>(out, count, coefsP, coefsN, sP, sN, volumeLR,
-            lerpP, coefsP1, coefsN1);
-#else
-
-    const int CHANNELS = 1; // template specialization does not preserve params
-    const int STRIDE = 16;
-    sP -= CHANNELS*((STRIDE>>1)-1);
-    asm (
-        "vmov.32        d2[0], %[lerpP]          \n"// load the positive phase S32 Q15
-        "veor           q0, q0, q0               \n"// (0 - combines+) accumulator = 0
-
-        "1:                                      \n"
-
-        "vld1.16        {q2}, [%[sP]]            \n"// (2+0d) load 8 16-bits mono samples
-        "vld1.16        {q3}, [%[sN]]!           \n"// (2) load 8 16-bits mono samples
-        "vld1.16        {q8}, [%[coefsP0]:128]!  \n"// (1) load 8 16-bits coefs
-        "vld1.16        {q9}, [%[coefsP1]:128]!  \n"// (1) load 8 16-bits coefs for interpolation
-        "vld1.16        {q10}, [%[coefsN1]:128]! \n"// (1) load 8 16-bits coefs
-        "vld1.16        {q11}, [%[coefsN0]:128]! \n"// (1) load 8 16-bits coefs for interpolation
-
-        "vsub.s16       q9, q9, q8               \n"// (1) interpolate (step1) 1st set of coefs
-        "vsub.s16       q11, q11, q10            \n"// (1) interpolate (step1) 2nd set of coets
-
-        "vqrdmulh.s16   q9, q9, d2[0]            \n"// (2) interpolate (step2) 1st set of coefs
-        "vqrdmulh.s16   q11, q11, d2[0]          \n"// (2) interpolate (step2) 2nd set of coefs
-
-        "vrev64.16      q2, q2                   \n"// (1) reverse s3, s2, s1, s0, s7, s6, s5, s4
-
-        "vadd.s16       q8, q8, q9               \n"// (1+2d) interpolate (step3) 1st set
-        "vadd.s16       q10, q10, q11            \n"// (1+1d) interpolate (step3) 2nd set
-
-        // reordering the vmal to do d6, d7 before d4, d5 is slower(?)
-        "vmlal.s16      q0, d4, d17              \n"// (1+0d) multiply reversed samples by coef
-        "vmlal.s16      q0, d5, d16              \n"// (1) multiply reversed samples by coef
-        "vmlal.s16      q0, d6, d20              \n"// (1) multiply neg samples
-        "vmlal.s16      q0, d7, d21              \n"// (1) multiply neg samples
-
-        // moving these ARM instructions before neon above seems to be slower
-        "subs           %[count], %[count], #8   \n"// (1) update loop counter
-        "sub            %[sP], %[sP], #16        \n"// (0) move pointer to next set of samples
-
-        // sP used after branch (warning)
-        "bne            1b                       \n"// loop
-
-        ASSEMBLY_ACCUMULATE_MONO
-
-        : [out]     "=Uv" (out[0]),
-          [count]   "+r" (count),
-          [coefsP0] "+r" (coefsP),
-          [coefsN0] "+r" (coefsN),
-          [coefsP1] "+r" (coefsP1),
-          [coefsN1] "+r" (coefsN1),
-          [sP]      "+r" (sP),
-          [sN]      "+r" (sN)
-        : [lerpP]   "r" (lerpP),
-          [vLR]     "r" (volumeLR)
-        : "cc", "memory",
-          "q0", "q1", "q2", "q3",
-          "q8", "q9", "q10", "q11"
-    );
-#endif
-}
-
-template <>
-inline void Process<2, 16>(int32_t* const out,
-        int count,
-        const int16_t* coefsP,
-        const int16_t* coefsN,
-        const int16_t* coefsP1,
-        const int16_t* coefsN1,
-        const int16_t* sP,
-        const int16_t* sN,
-        uint32_t lerpP,
-        const int32_t* const volumeLR)
-{
-#ifdef USE_INTRINSIC
-    ProcessNeonIntrinsic<2, 16, false>(out, count, coefsP, coefsN, sP, sN, volumeLR,
-            lerpP, coefsP1, coefsN1);
-#else
-    const int CHANNELS = 2; // template specialization does not preserve params
-    const int STRIDE = 16;
-    sP -= CHANNELS*((STRIDE>>1)-1);
-    asm (
-        "vmov.32        d2[0], %[lerpP]          \n"// load the positive phase
-        "veor           q0, q0, q0               \n"// (1) acc_L = 0
-        "veor           q4, q4, q4               \n"// (0 combines+) acc_R = 0
-
-        "1:                                      \n"
-
-        "vld2.16        {q2, q3}, [%[sP]]        \n"// (3+0d) load 8 16-bits stereo frames
-        "vld2.16        {q5, q6}, [%[sN]]!       \n"// (3) load 8 16-bits stereo frames
-        "vld1.16        {q8}, [%[coefsP0]:128]!  \n"// (1) load 8 16-bits coefs
-        "vld1.16        {q9}, [%[coefsP1]:128]!  \n"// (1) load 8 16-bits coefs for interpolation
-        "vld1.16        {q10}, [%[coefsN1]:128]! \n"// (1) load 8 16-bits coefs
-        "vld1.16        {q11}, [%[coefsN0]:128]! \n"// (1) load 8 16-bits coefs for interpolation
-
-        "vsub.s16       q9, q9, q8               \n"// (1) interpolate (step1) 1st set of coefs
-        "vsub.s16       q11, q11, q10            \n"// (1) interpolate (step1) 2nd set of coets
-
-        "vqrdmulh.s16   q9, q9, d2[0]            \n"// (2) interpolate (step2) 1st set of coefs
-        "vqrdmulh.s16   q11, q11, d2[0]          \n"// (2) interpolate (step2) 2nd set of coefs
-
-        "vrev64.16      q2, q2                   \n"// (1) reverse 8 samples of positive left
-        "vrev64.16      q3, q3                   \n"// (1) reverse 8 samples of positive right
-
-        "vadd.s16       q8, q8, q9               \n"// (1+1d) interpolate (step3) 1st set
-        "vadd.s16       q10, q10, q11            \n"// (1+1d) interpolate (step3) 2nd set
-
-        "vmlal.s16      q0, d4, d17              \n"// (1) multiply reversed samples left
-        "vmlal.s16      q0, d5, d16              \n"// (1) multiply reversed samples left
-        "vmlal.s16      q4, d6, d17              \n"// (1) multiply reversed samples right
-        "vmlal.s16      q4, d7, d16              \n"// (1) multiply reversed samples right
-        "vmlal.s16      q0, d10, d20             \n"// (1) multiply samples left
-        "vmlal.s16      q0, d11, d21             \n"// (1) multiply samples left
-        "vmlal.s16      q4, d12, d20             \n"// (1) multiply samples right
-        "vmlal.s16      q4, d13, d21             \n"// (1) multiply samples right
-
-        // moving these ARM before neon seems to be slower
-        "subs           %[count], %[count], #8   \n"// (1) update loop counter
-        "sub            %[sP], %[sP], #32        \n"// (0) move pointer to next set of samples
-
-        // sP used after branch (warning)
-        "bne            1b                       \n"// loop
-
-        ASSEMBLY_ACCUMULATE_STEREO
-
-        : [out] "=Uv" (out[0]),
-          [count] "+r" (count),
-          [coefsP0] "+r" (coefsP),
-          [coefsN0] "+r" (coefsN),
-          [coefsP1] "+r" (coefsP1),
-          [coefsN1] "+r" (coefsN1),
-          [sP] "+r" (sP),
-          [sN] "+r" (sN)
-        : [lerpP]   "r" (lerpP),
-          [vLR] "r" (volumeLR)
-        : "cc", "memory",
-          "q0", "q1", "q2", "q3",
-          "q4", "q5", "q6",
-          "q8", "q9", "q10", "q11"
-    );
-#endif
-}
-
-template <>
-inline void ProcessL<1, 16>(int32_t* const out,
-        int count,
-        const int32_t* coefsP,
-        const int32_t* coefsN,
-        const int16_t* sP,
-        const int16_t* sN,
-        const int32_t* const volumeLR)
-{
-#ifdef USE_INTRINSIC
-    ProcessNeonIntrinsic<1, 16, true>(out, count, coefsP, coefsN, sP, sN, volumeLR,
-            0 /*lerpP*/, NULL /*coefsP1*/, NULL /*coefsN1*/);
-#else
-    const int CHANNELS = 1; // template specialization does not preserve params
-    const int STRIDE = 16;
-    sP -= CHANNELS*((STRIDE>>1)-1);
-    asm (
-        "veor           q0, q0, q0                    \n"// result, initialize to 0
-
-        "1:                                           \n"
-
-        "vld1.16        {q2}, [%[sP]]                 \n"// load 8 16-bits mono samples
-        "vld1.16        {q3}, [%[sN]]!                \n"// load 8 16-bits mono samples
-        "vld1.32        {q8, q9}, [%[coefsP0]:128]!   \n"// load 8 32-bits coefs
-        "vld1.32        {q10, q11}, [%[coefsN0]:128]! \n"// load 8 32-bits coefs
-
-        "vrev64.16      q2, q2                        \n"// reverse 8 samples of the positive side
-
-        "vshll.s16      q12, d4, #15                  \n"// extend samples to 31 bits
-        "vshll.s16      q13, d5, #15                  \n"// extend samples to 31 bits
-
-        "vshll.s16      q14, d6, #15                  \n"// extend samples to 31 bits
-        "vshll.s16      q15, d7, #15                  \n"// extend samples to 31 bits
-
-        "vqrdmulh.s32   q12, q12, q9                  \n"// multiply samples
-        "vqrdmulh.s32   q13, q13, q8                  \n"// multiply samples
-        "vqrdmulh.s32   q14, q14, q10                 \n"// multiply samples
-        "vqrdmulh.s32   q15, q15, q11                 \n"// multiply samples
-
-        "vadd.s32       q0, q0, q12                   \n"// accumulate result
-        "vadd.s32       q13, q13, q14                 \n"// accumulate result
-        "vadd.s32       q0, q0, q15                   \n"// accumulate result
-        "vadd.s32       q0, q0, q13                   \n"// accumulate result
-
-        "sub            %[sP], %[sP], #16             \n"// move pointer to next set of samples
-        "subs           %[count], %[count], #8        \n"// update loop counter
-
-        "bne            1b                            \n"// loop
-
-        ASSEMBLY_ACCUMULATE_MONO
-
-        : [out]     "=Uv" (out[0]),
-          [count]   "+r" (count),
-          [coefsP0] "+r" (coefsP),
-          [coefsN0] "+r" (coefsN),
-          [sP]      "+r" (sP),
-          [sN]      "+r" (sN)
-        : [vLR]     "r" (volumeLR)
-        : "cc", "memory",
-          "q0", "q1", "q2", "q3",
-          "q8", "q9", "q10", "q11",
-          "q12", "q13", "q14", "q15"
-    );
-#endif
-}
-
-template <>
-inline void ProcessL<2, 16>(int32_t* const out,
-        int count,
-        const int32_t* coefsP,
-        const int32_t* coefsN,
-        const int16_t* sP,
-        const int16_t* sN,
-        const int32_t* const volumeLR)
-{
-#ifdef USE_INTRINSIC
-    ProcessNeonIntrinsic<2, 16, true>(out, count, coefsP, coefsN, sP, sN, volumeLR,
-            0 /*lerpP*/, NULL /*coefsP1*/, NULL /*coefsN1*/);
-#else
-    const int CHANNELS = 2; // template specialization does not preserve params
-    const int STRIDE = 16;
-    sP -= CHANNELS*((STRIDE>>1)-1);
-    asm (
-        "veor           q0, q0, q0                    \n"// result, initialize to 0
-        "veor           q4, q4, q4                    \n"// result, initialize to 0
-
-        "1:                                           \n"
-
-        "vld2.16        {q2, q3}, [%[sP]]             \n"// load 8 16-bits stereo frames
-        "vld2.16        {q5, q6}, [%[sN]]!            \n"// load 8 16-bits stereo frames
-        "vld1.32        {q8, q9}, [%[coefsP0]:128]!   \n"// load 8 32-bits coefs
-        "vld1.32        {q10, q11}, [%[coefsN0]:128]! \n"// load 8 32-bits coefs
-
-        "vrev64.16      q2, q2                        \n"// reverse 8 samples of positive left
-        "vrev64.16      q3, q3                        \n"// reverse 8 samples of positive right
-
-        "vshll.s16      q12,  d4, #15                 \n"// extend samples to 31 bits
-        "vshll.s16      q13,  d5, #15                 \n"// extend samples to 31 bits
-
-        "vshll.s16      q14,  d10, #15                \n"// extend samples to 31 bits
-        "vshll.s16      q15,  d11, #15                \n"// extend samples to 31 bits
-
-        "vqrdmulh.s32   q12, q12, q9                  \n"// multiply samples by coef
-        "vqrdmulh.s32   q13, q13, q8                  \n"// multiply samples by coef
-        "vqrdmulh.s32   q14, q14, q10                 \n"// multiply samples by coef
-        "vqrdmulh.s32   q15, q15, q11                 \n"// multiply samples by coef
-
-        "vadd.s32       q0, q0, q12                   \n"// accumulate result
-        "vadd.s32       q13, q13, q14                 \n"// accumulate result
-        "vadd.s32       q0, q0, q15                   \n"// accumulate result
-        "vadd.s32       q0, q0, q13                   \n"// accumulate result
-
-        "vshll.s16      q12,  d6, #15                 \n"// extend samples to 31 bits
-        "vshll.s16      q13,  d7, #15                 \n"// extend samples to 31 bits
-
-        "vshll.s16      q14,  d12, #15                \n"// extend samples to 31 bits
-        "vshll.s16      q15,  d13, #15                \n"// extend samples to 31 bits
-
-        "vqrdmulh.s32   q12, q12, q9                  \n"// multiply samples by coef
-        "vqrdmulh.s32   q13, q13, q8                  \n"// multiply samples by coef
-        "vqrdmulh.s32   q14, q14, q10                 \n"// multiply samples by coef
-        "vqrdmulh.s32   q15, q15, q11                 \n"// multiply samples by coef
-
-        "vadd.s32       q4, q4, q12                   \n"// accumulate result
-        "vadd.s32       q13, q13, q14                 \n"// accumulate result
-        "vadd.s32       q4, q4, q15                   \n"// accumulate result
-        "vadd.s32       q4, q4, q13                   \n"// accumulate result
-
-        "subs           %[count], %[count], #8        \n"// update loop counter
-        "sub            %[sP], %[sP], #32             \n"// move pointer to next set of samples
-
-        "bne            1b                            \n"// loop
-
-        ASSEMBLY_ACCUMULATE_STEREO
-
-        : [out]     "=Uv" (out[0]),
-          [count]   "+r" (count),
-          [coefsP0] "+r" (coefsP),
-          [coefsN0] "+r" (coefsN),
-          [sP]      "+r" (sP),
-          [sN]      "+r" (sN)
-        : [vLR]     "r" (volumeLR)
-        : "cc", "memory",
-          "q0", "q1", "q2", "q3",
-          "q4", "q5", "q6",
-          "q8", "q9", "q10", "q11",
-          "q12", "q13", "q14", "q15"
-    );
-#endif
-}
-
-template <>
-inline void Process<1, 16>(int32_t* const out,
-        int count,
-        const int32_t* coefsP,
-        const int32_t* coefsN,
-        const int32_t* coefsP1,
-        const int32_t* coefsN1,
-        const int16_t* sP,
-        const int16_t* sN,
-        uint32_t lerpP,
-        const int32_t* const volumeLR)
-{
-#ifdef USE_INTRINSIC
-    ProcessNeonIntrinsic<1, 16, false>(out, count, coefsP, coefsN, sP, sN, volumeLR,
-            lerpP, coefsP1, coefsN1);
-#else
-    const int CHANNELS = 1; // template specialization does not preserve params
-    const int STRIDE = 16;
-    sP -= CHANNELS*((STRIDE>>1)-1);
-    asm (
-        "vmov.32        d2[0], %[lerpP]               \n"// load the positive phase
-        "veor           q0, q0, q0                    \n"// result, initialize to 0
-
-        "1:                                           \n"
-
-        "vld1.16        {q2}, [%[sP]]                 \n"// load 8 16-bits mono samples
-        "vld1.16        {q3}, [%[sN]]!                \n"// load 8 16-bits mono samples
-        "vld1.32        {q8, q9}, [%[coefsP0]:128]!   \n"// load 8 32-bits coefs
-        "vld1.32        {q12, q13}, [%[coefsP1]:128]! \n"// load 8 32-bits coefs
-        "vld1.32        {q10, q11}, [%[coefsN1]:128]! \n"// load 8 32-bits coefs
-        "vld1.32        {q14, q15}, [%[coefsN0]:128]! \n"// load 8 32-bits coefs
-
-        "vsub.s32       q12, q12, q8                  \n"// interpolate (step1)
-        "vsub.s32       q13, q13, q9                  \n"// interpolate (step1)
-        "vsub.s32       q14, q14, q10                 \n"// interpolate (step1)
-        "vsub.s32       q15, q15, q11                 \n"// interpolate (step1)
-
-        "vqrdmulh.s32   q12, q12, d2[0]               \n"// interpolate (step2)
-        "vqrdmulh.s32   q13, q13, d2[0]               \n"// interpolate (step2)
-        "vqrdmulh.s32   q14, q14, d2[0]               \n"// interpolate (step2)
-        "vqrdmulh.s32   q15, q15, d2[0]               \n"// interpolate (step2)
-
-        "vadd.s32       q8, q8, q12                   \n"// interpolate (step3)
-        "vadd.s32       q9, q9, q13                   \n"// interpolate (step3)
-        "vadd.s32       q10, q10, q14                 \n"// interpolate (step3)
-        "vadd.s32       q11, q11, q15                 \n"// interpolate (step3)
-
-        "vrev64.16      q2, q2                        \n"// reverse 8 samples of the positive side
-
-        "vshll.s16      q12,  d4, #15                 \n"// extend samples to 31 bits
-        "vshll.s16      q13,  d5, #15                 \n"// extend samples to 31 bits
-
-        "vshll.s16      q14,  d6, #15                 \n"// extend samples to 31 bits
-        "vshll.s16      q15,  d7, #15                 \n"// extend samples to 31 bits
-
-        "vqrdmulh.s32   q12, q12, q9                  \n"// multiply samples by interpolated coef
-        "vqrdmulh.s32   q13, q13, q8                  \n"// multiply samples by interpolated coef
-        "vqrdmulh.s32   q14, q14, q10                 \n"// multiply samples by interpolated coef
-        "vqrdmulh.s32   q15, q15, q11                 \n"// multiply samples by interpolated coef
-
-        "vadd.s32       q0, q0, q12                   \n"// accumulate result
-        "vadd.s32       q13, q13, q14                 \n"// accumulate result
-        "vadd.s32       q0, q0, q15                   \n"// accumulate result
-        "vadd.s32       q0, q0, q13                   \n"// accumulate result
-
-        "sub            %[sP], %[sP], #16             \n"// move pointer to next set of samples
-        "subs           %[count], %[count], #8        \n"// update loop counter
-
-        "bne            1b                            \n"// loop
-
-        ASSEMBLY_ACCUMULATE_MONO
-
-        : [out]     "=Uv" (out[0]),
-          [count]   "+r" (count),
-          [coefsP0] "+r" (coefsP),
-          [coefsN0] "+r" (coefsN),
-          [coefsP1] "+r" (coefsP1),
-          [coefsN1] "+r" (coefsN1),
-          [sP]      "+r" (sP),
-          [sN]      "+r" (sN)
-        : [lerpP]   "r" (lerpP),
-          [vLR]     "r" (volumeLR)
-        : "cc", "memory",
-          "q0", "q1", "q2", "q3",
-          "q8", "q9", "q10", "q11",
-          "q12", "q13", "q14", "q15"
-    );
-#endif
-}
-
-template <>
-inline void Process<2, 16>(int32_t* const out,
-        int count,
-        const int32_t* coefsP,
-        const int32_t* coefsN,
-        const int32_t* coefsP1,
-        const int32_t* coefsN1,
-        const int16_t* sP,
-        const int16_t* sN,
-        uint32_t lerpP,
-        const int32_t* const volumeLR)
-{
-#ifdef USE_INTRINSIC
-    ProcessNeonIntrinsic<2, 16, false>(out, count, coefsP, coefsN, sP, sN, volumeLR,
-            lerpP, coefsP1, coefsN1);
-#else
-    const int CHANNELS = 2; // template specialization does not preserve params
-    const int STRIDE = 16;
-    sP -= CHANNELS*((STRIDE>>1)-1);
-    asm (
-        "vmov.32        d2[0], %[lerpP]               \n"// load the positive phase
-        "veor           q0, q0, q0                    \n"// result, initialize to 0
-        "veor           q4, q4, q4                    \n"// result, initialize to 0
-
-        "1:                                           \n"
-
-        "vld2.16        {q2, q3}, [%[sP]]             \n"// load 8 16-bits stereo frames
-        "vld2.16        {q5, q6}, [%[sN]]!            \n"// load 8 16-bits stereo frames
-        "vld1.32        {q8, q9}, [%[coefsP0]:128]!   \n"// load 8 32-bits coefs
-        "vld1.32        {q12, q13}, [%[coefsP1]:128]! \n"// load 8 32-bits coefs
-        "vld1.32        {q10, q11}, [%[coefsN1]:128]! \n"// load 8 32-bits coefs
-        "vld1.32        {q14, q15}, [%[coefsN0]:128]! \n"// load 8 32-bits coefs
-
-        "vsub.s32       q12, q12, q8                  \n"// interpolate (step1)
-        "vsub.s32       q13, q13, q9                  \n"// interpolate (step1)
-        "vsub.s32       q14, q14, q10                 \n"// interpolate (step1)
-        "vsub.s32       q15, q15, q11                 \n"// interpolate (step1)
-
-        "vqrdmulh.s32   q12, q12, d2[0]               \n"// interpolate (step2)
-        "vqrdmulh.s32   q13, q13, d2[0]               \n"// interpolate (step2)
-        "vqrdmulh.s32   q14, q14, d2[0]               \n"// interpolate (step2)
-        "vqrdmulh.s32   q15, q15, d2[0]               \n"// interpolate (step2)
-
-        "vadd.s32       q8, q8, q12                   \n"// interpolate (step3)
-        "vadd.s32       q9, q9, q13                   \n"// interpolate (step3)
-        "vadd.s32       q10, q10, q14                 \n"// interpolate (step3)
-        "vadd.s32       q11, q11, q15                 \n"// interpolate (step3)
-
-        "vrev64.16      q2, q2                        \n"// reverse 8 samples of positive left
-        "vrev64.16      q3, q3                        \n"// reverse 8 samples of positive right
-
-        "vshll.s16      q12,  d4, #15                 \n"// extend samples to 31 bits
-        "vshll.s16      q13,  d5, #15                 \n"// extend samples to 31 bits
-
-        "vshll.s16      q14,  d10, #15                \n"// extend samples to 31 bits
-        "vshll.s16      q15,  d11, #15                \n"// extend samples to 31 bits
-
-        "vqrdmulh.s32   q12, q12, q9                  \n"// multiply samples by interpolated coef
-        "vqrdmulh.s32   q13, q13, q8                  \n"// multiply samples by interpolated coef
-        "vqrdmulh.s32   q14, q14, q10                 \n"// multiply samples by interpolated coef
-        "vqrdmulh.s32   q15, q15, q11                 \n"// multiply samples by interpolated coef
-
-        "vadd.s32       q0, q0, q12                   \n"// accumulate result
-        "vadd.s32       q13, q13, q14                 \n"// accumulate result
-        "vadd.s32       q0, q0, q15                   \n"// accumulate result
-        "vadd.s32       q0, q0, q13                   \n"// accumulate result
-
-        "vshll.s16      q12,  d6, #15                 \n"// extend samples to 31 bits
-        "vshll.s16      q13,  d7, #15                 \n"// extend samples to 31 bits
-
-        "vshll.s16      q14,  d12, #15                \n"// extend samples to 31 bits
-        "vshll.s16      q15,  d13, #15                \n"// extend samples to 31 bits
-
-        "vqrdmulh.s32   q12, q12, q9                  \n"// multiply samples by interpolated coef
-        "vqrdmulh.s32   q13, q13, q8                  \n"// multiply samples by interpolated coef
-        "vqrdmulh.s32   q14, q14, q10                 \n"// multiply samples by interpolated coef
-        "vqrdmulh.s32   q15, q15, q11                 \n"// multiply samples by interpolated coef
-
-        "vadd.s32       q4, q4, q12                   \n"// accumulate result
-        "vadd.s32       q13, q13, q14                 \n"// accumulate result
-        "vadd.s32       q4, q4, q15                   \n"// accumulate result
-        "vadd.s32       q4, q4, q13                   \n"// accumulate result
-
-        "subs           %[count], %[count], #8        \n"// update loop counter
-        "sub            %[sP], %[sP], #32             \n"// move pointer to next set of samples
-
-        "bne            1b                            \n"// loop
-
-        ASSEMBLY_ACCUMULATE_STEREO
-
-        : [out]     "=Uv" (out[0]),
-          [count]   "+r" (count),
-          [coefsP0] "+r" (coefsP),
-          [coefsN0] "+r" (coefsN),
-          [coefsP1] "+r" (coefsP1),
-          [coefsN1] "+r" (coefsN1),
-          [sP]      "+r" (sP),
-          [sN]      "+r" (sN)
-        : [lerpP]   "r" (lerpP),
-          [vLR]     "r" (volumeLR)
-        : "cc", "memory",
-          "q0", "q1", "q2", "q3",
-          "q4", "q5", "q6",
-          "q8", "q9", "q10", "q11",
-          "q12", "q13", "q14", "q15"
-    );
-#endif
-}
-
-template<>
-inline void ProcessL<1, 16>(float* const out,
-        int count,
-        const float* coefsP,
-        const float* coefsN,
-        const float* sP,
-        const float* sN,
-        const float* const volumeLR)
-{
-    ProcessNeonIntrinsic<1, 16, true>(out, count, coefsP, coefsN, sP, sN, volumeLR,
-            0 /*lerpP*/, NULL /*coefsP1*/, NULL /*coefsN1*/);
-}
-
-template<>
-inline void ProcessL<2, 16>(float* const out,
-        int count,
-        const float* coefsP,
-        const float* coefsN,
-        const float* sP,
-        const float* sN,
-        const float* const volumeLR)
-{
-    ProcessNeonIntrinsic<2, 16, true>(out, count, coefsP, coefsN, sP, sN, volumeLR,
-            0 /*lerpP*/, NULL /*coefsP1*/, NULL /*coefsN1*/);
-}
-
-template<>
-inline void Process<1, 16>(float* const out,
-        int count,
-        const float* coefsP,
-        const float* coefsN,
-        const float* coefsP1,
-        const float* coefsN1,
-        const float* sP,
-        const float* sN,
-        float lerpP,
-        const float* const volumeLR)
-{
-    ProcessNeonIntrinsic<1, 16, false>(out, count, coefsP, coefsN, sP, sN, volumeLR,
-            lerpP, coefsP1, coefsN1);
-}
-
-template<>
-inline void Process<2, 16>(float* const out,
-        int count,
-        const float* coefsP,
-        const float* coefsN,
-        const float* coefsP1,
-        const float* coefsN1,
-        const float* sP,
-        const float* sN,
-        float lerpP,
-        const float* const volumeLR)
-{
-    ProcessNeonIntrinsic<2, 16, false>(out, count, coefsP, coefsN, sP, sN, volumeLR,
-            lerpP, coefsP1, coefsN1);
-}
-
-#endif //USE_NEON
-
-} // namespace android
-
-#endif /*ANDROID_AUDIO_RESAMPLER_FIR_PROCESS_NEON_H*/
diff --git a/services/audioflinger/AudioResamplerSinc.h b/services/audioflinger/AudioResamplerSinc.h
deleted file mode 100644
index df8b45a..0000000
--- a/services/audioflinger/AudioResamplerSinc.h
+++ /dev/null
@@ -1,100 +0,0 @@
-/*
- * Copyright (C) 2007 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_AUDIO_RESAMPLER_SINC_H
-#define ANDROID_AUDIO_RESAMPLER_SINC_H
-
-#include <stdint.h>
-#include <sys/types.h>
-#include <android/log.h>
-
-#include "AudioResampler.h"
-
-namespace android {
-
-
-typedef const int32_t * (*readCoefficientsFn)(bool upDownSample);
-typedef int32_t (*readResampleFirNumCoeffFn)();
-typedef int32_t (*readResampleFirLerpIntBitsFn)();
-
-// ----------------------------------------------------------------------------
-
-class AudioResamplerSinc : public AudioResampler {
-public:
-    AudioResamplerSinc(int inChannelCount, int32_t sampleRate,
-            src_quality quality = HIGH_QUALITY);
-
-    virtual ~AudioResamplerSinc();
-
-    virtual size_t resample(int32_t* out, size_t outFrameCount,
-            AudioBufferProvider* provider);
-private:
-    void init();
-
-    virtual void setVolume(float left, float right);
-
-    template<int CHANNELS>
-    size_t resample(int32_t* out, size_t outFrameCount,
-            AudioBufferProvider* provider);
-
-    template<int CHANNELS>
-    inline void filterCoefficient(
-            int32_t* out, uint32_t phase, const int16_t *samples, uint32_t vRL);
-
-    template<int CHANNELS>
-    inline void interpolate(
-            int32_t& l, int32_t& r,
-            const int32_t* coefs, size_t offset,
-            int32_t lerp, const int16_t* samples);
-
-    template<int CHANNELS>
-    inline void read(int16_t*& impulse, uint32_t& phaseFraction,
-            const int16_t* in, size_t inputIndex);
-
-    int16_t *mState;
-    int16_t *mImpulse;
-    int16_t *mRingFull;
-    int32_t mVolumeSIMD[2];
-
-    const int32_t * mFirCoefs;
-    static const uint32_t mFirCoefsDown[];
-    static const uint32_t mFirCoefsUp[];
-
-    // ----------------------------------------------------------------------------
-    static const int32_t RESAMPLE_FIR_NUM_COEF       = 8;
-    static const int32_t RESAMPLE_FIR_LERP_INT_BITS  = 7;
-
-    struct Constants {
-        int coefsBits;
-        int cShift;
-        uint32_t cMask;
-        int pShift;
-        uint32_t pMask;
-        // number of zero-crossing on each side
-        unsigned int halfNumCoefs;
-    };
-
-    static Constants highQualityConstants;
-    static Constants veryHighQualityConstants;
-    const Constants *mConstants;    // points to appropriate set of coefficient parameters
-
-    static void init_routine();
-};
-
-// ----------------------------------------------------------------------------
-} // namespace android
-
-#endif /*ANDROID_AUDIO_RESAMPLER_SINC_H*/
diff --git a/services/audioflinger/AudioStreamOut.cpp b/services/audioflinger/AudioStreamOut.cpp
index 6026bbb..1d4b3fe 100644
--- a/services/audioflinger/AudioStreamOut.cpp
+++ b/services/audioflinger/AudioStreamOut.cpp
@@ -18,7 +18,9 @@
 #define LOG_TAG "AudioFlinger"
 //#define LOG_NDEBUG 0
 
-#include <hardware/audio.h>
+#include <media/audiohal/DeviceHalInterface.h>
+#include <media/audiohal/StreamHalInterface.h>
+#include <system/audio.h>
 #include <utils/Log.h>
 
 #include "AudioHwDevice.h"
@@ -40,19 +42,23 @@
 {
 }
 
-audio_hw_device_t *AudioStreamOut::hwDev() const
+AudioStreamOut::~AudioStreamOut()
+{
+}
+
+sp<DeviceHalInterface> AudioStreamOut::hwDev() const
 {
     return audioHwDev->hwDevice();
 }
 
 status_t AudioStreamOut::getRenderPosition(uint64_t *frames)
 {
-    if (stream == NULL) {
+    if (stream == 0) {
         return NO_INIT;
     }
 
     uint32_t halPosition = 0;
-    status_t status = stream->get_render_position(stream, &halPosition);
+    status_t status = stream->getRenderPosition(&halPosition);
     if (status != NO_ERROR) {
         return status;
     }
@@ -84,12 +90,12 @@
 
 status_t AudioStreamOut::getPresentationPosition(uint64_t *frames, struct timespec *timestamp)
 {
-    if (stream == NULL) {
+    if (stream == 0) {
         return NO_INIT;
     }
 
     uint64_t halPosition = 0;
-    status_t status = stream->get_presentation_position(stream, &halPosition, timestamp);
+    status_t status = stream->getPresentationPosition(&halPosition, timestamp);
     if (status != NO_ERROR) {
         return status;
     }
@@ -115,24 +121,23 @@
         struct audio_config *config,
         const char *address)
 {
-    audio_stream_out_t *outStream;
+    sp<StreamOutHalInterface> outStream;
 
     audio_output_flags_t customFlags = (config->format == AUDIO_FORMAT_IEC61937)
                 ? (audio_output_flags_t)(flags | AUDIO_OUTPUT_FLAG_IEC958_NONAUDIO)
                 : flags;
 
-    int status = hwDev()->open_output_stream(
-            hwDev(),
+    int status = hwDev()->openOutputStream(
             handle,
             devices,
             customFlags,
             config,
-            &outStream,
-            address);
+            address,
+            &outStream);
     ALOGV("AudioStreamOut::open(), HAL returned "
             " stream %p, sampleRate %d, Format %#x, "
             "channelMask %#x, status %d",
-            outStream,
+            outStream.get(),
             config->sample_rate,
             config->format,
             config->channel_mask,
@@ -144,21 +149,20 @@
         struct audio_config customConfig = *config;
         customConfig.format = AUDIO_FORMAT_PCM_16_BIT;
 
-        status = hwDev()->open_output_stream(
-                hwDev(),
+        status = hwDev()->openOutputStream(
                 handle,
                 devices,
                 customFlags,
                 &customConfig,
-                &outStream,
-                address);
+                address,
+                &outStream);
         ALOGV("AudioStreamOut::open(), treat IEC61937 as PCM, status = %d", status);
     }
 
     if (status == NO_ERROR) {
         stream = outStream;
         mHalFormatHasProportionalFrames = audio_has_proportional_frames(config->format);
-        mHalFrameSize = audio_stream_out_frame_size(stream);
+        status = stream->getFrameSize(&mHalFrameSize);
     }
 
     return status;
@@ -166,47 +170,46 @@
 
 audio_format_t AudioStreamOut::getFormat() const
 {
-    return stream->common.get_format(&stream->common);
+    audio_format_t result;
+    return stream->getFormat(&result) == OK ? result : AUDIO_FORMAT_INVALID;
 }
 
 uint32_t AudioStreamOut::getSampleRate() const
 {
-    return stream->common.get_sample_rate(&stream->common);
+    uint32_t result;
+    return stream->getSampleRate(&result) == OK ? result : 0;
 }
 
 audio_channel_mask_t AudioStreamOut::getChannelMask() const
 {
-    return stream->common.get_channels(&stream->common);
+    audio_channel_mask_t result;
+    return stream->getChannelMask(&result) == OK ? result : AUDIO_CHANNEL_INVALID;
 }
 
 int AudioStreamOut::flush()
 {
-    ALOG_ASSERT(stream != NULL);
     mRenderPosition = 0;
     mFramesWritten = 0;
     mFramesWrittenAtStandby = 0;
-    if (stream->flush != NULL) {
-        return stream->flush(stream);
-    }
-    return NO_ERROR;
+    status_t result = stream->flush();
+    return result != INVALID_OPERATION ? result : NO_ERROR;
 }
 
 int AudioStreamOut::standby()
 {
-    ALOG_ASSERT(stream != NULL);
     mRenderPosition = 0;
     mFramesWrittenAtStandby = mFramesWritten;
-    return stream->common.standby(&stream->common);
+    return stream->standby();
 }
 
 ssize_t AudioStreamOut::write(const void *buffer, size_t numBytes)
 {
-    ALOG_ASSERT(stream != NULL);
-    ssize_t bytesWritten = stream->write(stream, buffer, numBytes);
-    if (bytesWritten > 0 && mHalFrameSize > 0) {
+    size_t bytesWritten;
+    status_t result = stream->write(buffer, numBytes, &bytesWritten);
+    if (result == OK && bytesWritten > 0 && mHalFrameSize > 0) {
         mFramesWritten += bytesWritten / mHalFrameSize;
     }
-    return bytesWritten;
+    return result == OK ? bytesWritten : result;
 }
 
 } // namespace android
diff --git a/services/audioflinger/AudioStreamOut.h b/services/audioflinger/AudioStreamOut.h
index 768f537..b16b1af 100644
--- a/services/audioflinger/AudioStreamOut.h
+++ b/services/audioflinger/AudioStreamOut.h
@@ -23,11 +23,11 @@
 
 #include <system/audio.h>
 
-#include "AudioStreamOut.h"
-
 namespace android {
 
 class AudioHwDevice;
+class DeviceHalInterface;
+class StreamOutHalInterface;
 
 /**
  * Managed access to a HAL output stream.
@@ -38,10 +38,10 @@
 // For emphasis, we could also make all pointers to them be "const *",
 // but that would clutter the code unnecessarily.
     AudioHwDevice * const audioHwDev;
-    audio_stream_out_t *stream;
+    sp<StreamOutHalInterface> stream;
     const audio_output_flags_t flags;
 
-    audio_hw_device_t *hwDev() const;
+    sp<DeviceHalInterface> hwDev() const;
 
     AudioStreamOut(AudioHwDevice *dev, audio_output_flags_t flags);
 
@@ -51,7 +51,7 @@
             struct audio_config *config,
             const char *address);
 
-    virtual ~AudioStreamOut() { }
+    virtual ~AudioStreamOut();
 
     // Get the bottom 32-bits of the 64-bit render position.
     status_t getRenderPosition(uint32_t *frames);
diff --git a/services/audioflinger/BufLog.cpp b/services/audioflinger/BufLog.cpp
new file mode 100644
index 0000000..9680eb5
--- /dev/null
+++ b/services/audioflinger/BufLog.cpp
@@ -0,0 +1,195 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+#include "BufLog.h"
+#define LOG_TAG "BufLog"
+//#define LOG_NDEBUG 0
+
+#include <errno.h>
+#include "log/log.h"
+#include <pthread.h>
+#include <stdio.h>
+#include <string.h>
+
+#define MIN(a, b) ((a) < (b) ? (a) : (b))
+
+// ------------------------------
+// BufLogSingleton
+// ------------------------------
+pthread_once_t onceControl = PTHREAD_ONCE_INIT;
+
+BufLog *BufLogSingleton::mInstance = NULL;
+
+void BufLogSingleton::initOnce() {
+    mInstance = new BufLog();
+    ALOGW("=====================================\n" \
+            "Warning: BUFLOG is defined in some part of your code.\n" \
+            "This will create large audio dumps in %s.\n" \
+            "=====================================\n", BUFLOG_BASE_PATH);
+}
+
+BufLog *BufLogSingleton::instance() {
+    pthread_once(&onceControl, initOnce);
+    return mInstance;
+}
+
+bool BufLogSingleton::instanceExists() {
+    return mInstance != NULL;
+}
+
+// ------------------------------
+// BufLog
+// ------------------------------
+
+BufLog::BufLog() {
+    memset(mStreams, 0, sizeof(mStreams));
+}
+
+BufLog::~BufLog() {
+    android::Mutex::Autolock autoLock(mLock);
+
+    for (unsigned int id = 0; id < BUFLOG_MAXSTREAMS; id++) {
+        BufLogStream *pBLStream = mStreams[id];
+        if (pBLStream != NULL) {
+            delete pBLStream ;
+            mStreams[id] = NULL;
+        }
+    }
+}
+
+size_t BufLog::write(int streamid, const char *tag, int format, int channels,
+        int samplingRate, size_t maxBytes, const void *buf, size_t size) {
+    unsigned int id = streamid % BUFLOG_MAXSTREAMS;
+    android::Mutex::Autolock autoLock(mLock);
+
+    BufLogStream *pBLStream = mStreams[id];
+
+    if (pBLStream == NULL) {
+        pBLStream = mStreams[id] = new BufLogStream(id, tag, format, channels,
+                samplingRate, maxBytes);
+        ALOG_ASSERT(pBLStream != NULL, "BufLogStream Failed to be created");
+    }
+
+    return pBLStream->write(buf, size);
+}
+
+void BufLog::reset() {
+    android::Mutex::Autolock autoLock(mLock);
+    ALOGV("Resetting all BufLogs");
+    int count = 0;
+
+    for (unsigned int id = 0; id < BUFLOG_MAXSTREAMS; id++) {
+        BufLogStream *pBLStream = mStreams[id];
+        if (pBLStream != NULL) {
+            delete pBLStream;
+            mStreams[id] = NULL;
+            count++;
+        }
+    }
+    ALOGV("Reset %d BufLogs", count);
+}
+
+// ------------------------------
+// BufLogStream
+// ------------------------------
+
+BufLogStream::BufLogStream(unsigned int id,
+        const char *tag,
+        unsigned int format,
+        unsigned int channels,
+        unsigned int samplingRate,
+        size_t maxBytes = 0) : mId(id), mFormat(format), mChannels(channels),
+                mSamplingRate(samplingRate), mMaxBytes(maxBytes) {
+    mByteCount = 0l;
+    mPaused = false;
+    if (tag != NULL) {
+        strncpy(mTag, tag, BUFLOGSTREAM_MAX_TAGSIZE);
+    } else {
+        mTag[0] = 0;
+    }
+    ALOGV("Creating BufLogStream id:%d tag:%s format:%d ch:%d sr:%d maxbytes:%zu", mId, mTag,
+            mFormat, mChannels, mSamplingRate, mMaxBytes);
+
+    //open file (s), info about tag, format, etc.
+    //timestamp
+    char timeStr[16];   //size 16: format %Y%m%d%H%M%S 14 chars + string null terminator
+    struct timeval tv;
+    gettimeofday(&tv, NULL);
+    struct tm tm;
+    localtime_r(&tv.tv_sec, &tm);
+    strftime(timeStr, sizeof(timeStr), "%Y%m%d%H%M%S", &tm);
+    char logPath[BUFLOG_MAX_PATH_SIZE];
+    snprintf(logPath, BUFLOG_MAX_PATH_SIZE, "%s/%s_%d_%s_%d_%d_%d.raw", BUFLOG_BASE_PATH, timeStr,
+            mId, mTag, mFormat, mChannels, mSamplingRate);
+    ALOGV("data output: %s", logPath);
+
+    mFile = fopen(logPath, "wb");
+    if (mFile != NULL) {
+        ALOGV("Success creating file at: %p", mFile);
+    } else {
+        ALOGE("Error: could not create file BufLogStream %s", strerror(errno));
+    }
+}
+
+void BufLogStream::closeStream_l() {
+    ALOGV("Closing BufLogStream id:%d tag:%s", mId, mTag);
+    if (mFile != NULL) {
+        fclose(mFile);
+        mFile = NULL;
+    }
+}
+
+BufLogStream::~BufLogStream() {
+    ALOGV("Destroying BufLogStream id:%d tag:%s", mId, mTag);
+    android::Mutex::Autolock autoLock(mLock);
+    closeStream_l();
+}
+
+size_t BufLogStream::write(const void *buf, size_t size) {
+
+    size_t bytes = 0;
+    if (!mPaused && mFile != NULL) {
+        if (size > 0 && buf != NULL) {
+            android::Mutex::Autolock autoLock(mLock);
+            if (mMaxBytes > 0) {
+                size = MIN(size, mMaxBytes - mByteCount);
+            }
+            bytes = fwrite(buf, 1, size, mFile);
+            mByteCount += bytes;
+            if (mMaxBytes > 0 && mMaxBytes == mByteCount) {
+                closeStream_l();
+            }
+        }
+        ALOGV("wrote %zu/%zu bytes to BufLogStream %d tag:%s. Total Bytes: %zu", bytes, size, mId,
+                mTag, mByteCount);
+    } else {
+        ALOGV("Warning: trying to write to %s BufLogStream id:%d tag:%s",
+                mPaused ? "paused" : "closed", mId, mTag);
+    }
+    return bytes;
+}
+
+bool BufLogStream::setPause(bool pause) {
+    bool old = mPaused;
+    mPaused = pause;
+    return old;
+}
+
+void BufLogStream::finalize() {
+    android::Mutex::Autolock autoLock(mLock);
+    closeStream_l();
+}
diff --git a/services/audioflinger/BufLog.h b/services/audioflinger/BufLog.h
new file mode 100644
index 0000000..1b402f4
--- /dev/null
+++ b/services/audioflinger/BufLog.h
@@ -0,0 +1,199 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_AUDIO_BUFLOG_H
+#define ANDROID_AUDIO_BUFLOG_H
+
+/*
+ * BUFLOG creates up to BUFLOG_MAXSTREAMS simultaneous streams [0:15] of audio buffer data
+ * and saves them to disk. The files are stored in the path specified in BUFLOG_BASE_PATH and
+ * are named following this format:
+ *   YYYYMMDDHHMMSS_id_format_channels_samplingrate.raw
+ *
+ * Normally we strip BUFLOG dumps from release builds.
+ * You can modify this (for example with "#define BUFLOG_NDEBUG 0"
+ * at the top of your source file) to change that behavior.
+ *
+ * usage:
+ * - Add this to the top of the source file you want to debug:
+ *   #define BUFLOG_NDEBUG 0
+ *   #include "BufLog.h"
+ *
+ * - dump an audio buffer
+ *  BUFLOG(buff_id, buff_tag, format, channels, sampling_rate, max_bytes, buff_pointer, buff_size);
+ *
+ *  buff_id:   int [0:15]   buffer id. If a buffer doesn't exist, it is created the first time.
+ *  buff_tag:  char*        string tag used on stream filename and logs
+ *  format:    int          Audio format (audio_format_t see audio.h)
+ *  channels:  int          Channel Count
+ *  sampling_rate:  int     Sampling rate in Hz. e.g. 8000, 16000, 44100, 48000, etc
+ *  max_bytes: int [0 or positive number]
+ *                          Maximum size of the file (in bytes) to be output.
+ *                          If the value is 0, no limit.
+ *  buff_pointer: void *    Pointer to audio buffer.
+ *  buff_size:  int         Size (in bytes) of the current audio buffer to be stored.
+ *
+ *
+ *  Example usage:
+ *    int format       = mConfig.outputCfg.format;
+ *    int channels     = audio_channel_count_from_out_mask(mConfig.outputCfg.channels);
+ *    int samplingRate = mConfig.outputCfg.samplingRate;
+ *    int frameCount   = mConfig.outputCfg.buffer.frameCount;
+ *    int frameSize    = audio_bytes_per_sample((audio_format_t)format) * channels;
+ *    int buffSize     = frameCount * frameSize;
+ *    long maxBytes = 10 * samplingRate * frameSize; //10 seconds max
+ *  BUFLOG(11, "loudnes_enhancer_out", format, channels, samplingRate, maxBytes,
+ *                               mConfig.outputCfg.buffer.raw, buffSize);
+ *
+ *  Other macros:
+ *  BUFLOG_EXISTS       returns true if there is an instance of BufLog
+ *
+ *  BUFLOG_RESET        If an instance of BufLog exists, it stops the capture and closes all
+ *                      streams.
+ *                      If a new call to BUFLOG(..) is done, new streams are created.
+ */
+
+#ifndef BUFLOG_NDEBUG
+#ifdef NDEBUG
+#define BUFLOG_NDEBUG 1
+#else
+#define BUFLOG_NDEBUG 0
+#endif
+#endif
+
+/*
+ * Simplified macro to send a buffer.
+ */
+#ifndef BUFLOG
+#define __BUFLOG(STREAMID, TAG, FORMAT, CHANNELS, SAMPLINGRATE, MAXBYTES, BUF, SIZE) \
+    BufLogSingleton::instance()->write(STREAMID, TAG, FORMAT, CHANNELS, SAMPLINGRATE, MAXBYTES, \
+            BUF, SIZE)
+#if BUFLOG_NDEBUG
+#define BUFLOG(STREAMID, TAG, FORMAT, CHANNELS, SAMPLINGRATE, MAXBYTES, BUF, SIZE) \
+    do { if (0) {  } } while (0)
+#else
+#define BUFLOG(STREAMID, TAG, FORMAT, CHANNELS, SAMPLINGRATE, MAXBYTES, BUF, SIZE) \
+    __BUFLOG(STREAMID, TAG, FORMAT, CHANNELS, SAMPLINGRATE, MAXBYTES, BUF, SIZE)
+#endif
+#endif
+
+#ifndef BUFLOG_EXISTS
+#define BUFLOG_EXISTS BufLogSingleton::instanceExists()
+#endif
+
+#ifndef BUFLOG_RESET
+#define BUFLOG_RESET do { if (BufLogSingleton::instanceExists()) { \
+    BufLogSingleton::instance()->reset(); } } while (0)
+#endif
+
+
+#include <stdint.h>
+#include <stdio.h>
+#include <sys/types.h>
+#include <utils/Mutex.h>
+
+//BufLog configuration
+#define BUFLOGSTREAM_MAX_TAGSIZE    32
+#define BUFLOG_BASE_PATH            "/data/misc/audioserver"
+#define BUFLOG_MAX_PATH_SIZE        300
+
+class BufLogStream {
+public:
+    BufLogStream(unsigned int id,
+            const char *tag,
+            unsigned int format,
+            unsigned int channels,
+            unsigned int samplingRate,
+            size_t maxBytes);
+    ~BufLogStream();
+
+    // write buffer to stream
+    //  buf:  pointer to buffer
+    //  size: number of bytes to write
+    size_t          write(const void *buf, size_t size);
+
+    // pause/resume stream
+    //  pause: true = paused, false = not paused
+    //  return value: previous state of stream (paused or not).
+    bool            setPause(bool pause);
+
+    // will stop the stream and close any open file
+    // the stream can't be reopen. Instead, a new stream (and file) should be created.
+    void            finalize();
+
+private:
+    bool                mPaused;
+    const unsigned int  mId;
+    char                mTag[BUFLOGSTREAM_MAX_TAGSIZE + 1];
+    const unsigned int  mFormat;
+    const unsigned int  mChannels;
+    const unsigned int  mSamplingRate;
+    const size_t        mMaxBytes;
+    size_t              mByteCount;
+    FILE                *mFile;
+    mutable android::Mutex mLock;
+
+    void            closeStream_l();
+};
+
+
+class BufLog {
+public:
+    BufLog();
+    ~BufLog();
+    BufLog(BufLog const&) {};
+
+    //  streamid:      int [0:BUFLOG_MAXSTREAMS-1]   buffer id.
+    //                  If a buffer doesn't exist, it is created the first time is referenced
+    //  tag:           char*  string tag used on stream filename and logs
+    //  format:        int Audio format (audio_format_t see audio.h)
+    //  channels:      int          Channel Count
+    //  samplingRate:  int Sampling rate in Hz. e.g. 8000, 16000, 44100, 48000, etc
+    //  maxBytes:      int [0 or positive number]
+    //                  Maximum size of the file (in bytes) to be output.
+    //                  If the value is 0, no limit.
+    //  size:          int Size (in bytes) of the current audio buffer to be written.
+    //  buf:           void *    Pointer to audio buffer.
+    size_t          write(int streamid,
+                        const char *tag,
+                        int format,
+                        int channels,
+                        int samplingRate,
+                        size_t maxBytes,
+                        const void *buf,
+                        size_t size);
+
+    // reset will stop and close all active streams, thus finalizing any open file.
+    //  New streams will be created if write() is called again.
+    void            reset();
+
+protected:
+    static const unsigned int BUFLOG_MAXSTREAMS = 16;
+    BufLogStream    *mStreams[BUFLOG_MAXSTREAMS];
+    mutable android::Mutex mLock;
+};
+
+class BufLogSingleton {
+public:
+    static BufLog   *instance();
+    static bool     instanceExists();
+
+private:
+    static void     initOnce();
+    static BufLog   *mInstance;
+};
+
+#endif //ANDROID_AUDIO_BUFLOG_H
diff --git a/services/audioflinger/BufferProviders.cpp b/services/audioflinger/BufferProviders.cpp
deleted file mode 100644
index 7b6dfcb..0000000
--- a/services/audioflinger/BufferProviders.cpp
+++ /dev/null
@@ -1,541 +0,0 @@
-/*
- * Copyright (C) 2015 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "BufferProvider"
-//#define LOG_NDEBUG 0
-
-#include <audio_effects/effect_downmix.h>
-#include <audio_utils/primitives.h>
-#include <audio_utils/format.h>
-#include <media/AudioResamplerPublic.h>
-#include <media/EffectsFactoryApi.h>
-
-#include <utils/Log.h>
-
-#include "Configuration.h"
-#include "BufferProviders.h"
-
-#ifndef ARRAY_SIZE
-#define ARRAY_SIZE(x) (sizeof(x)/sizeof((x)[0]))
-#endif
-
-namespace android {
-
-// ----------------------------------------------------------------------------
-
-template <typename T>
-static inline T min(const T& a, const T& b)
-{
-    return a < b ? a : b;
-}
-
-CopyBufferProvider::CopyBufferProvider(size_t inputFrameSize,
-        size_t outputFrameSize, size_t bufferFrameCount) :
-        mInputFrameSize(inputFrameSize),
-        mOutputFrameSize(outputFrameSize),
-        mLocalBufferFrameCount(bufferFrameCount),
-        mLocalBufferData(NULL),
-        mConsumed(0)
-{
-    ALOGV("CopyBufferProvider(%p)(%zu, %zu, %zu)", this,
-            inputFrameSize, outputFrameSize, bufferFrameCount);
-    LOG_ALWAYS_FATAL_IF(inputFrameSize < outputFrameSize && bufferFrameCount == 0,
-            "Requires local buffer if inputFrameSize(%zu) < outputFrameSize(%zu)",
-            inputFrameSize, outputFrameSize);
-    if (mLocalBufferFrameCount) {
-        (void)posix_memalign(&mLocalBufferData, 32, mLocalBufferFrameCount * mOutputFrameSize);
-    }
-    mBuffer.frameCount = 0;
-}
-
-CopyBufferProvider::~CopyBufferProvider()
-{
-    ALOGV("~CopyBufferProvider(%p)", this);
-    if (mBuffer.frameCount != 0) {
-        mTrackBufferProvider->releaseBuffer(&mBuffer);
-    }
-    free(mLocalBufferData);
-}
-
-status_t CopyBufferProvider::getNextBuffer(AudioBufferProvider::Buffer *pBuffer)
-{
-    //ALOGV("CopyBufferProvider(%p)::getNextBuffer(%p (%zu))",
-    //        this, pBuffer, pBuffer->frameCount);
-    if (mLocalBufferFrameCount == 0) {
-        status_t res = mTrackBufferProvider->getNextBuffer(pBuffer);
-        if (res == OK) {
-            copyFrames(pBuffer->raw, pBuffer->raw, pBuffer->frameCount);
-        }
-        return res;
-    }
-    if (mBuffer.frameCount == 0) {
-        mBuffer.frameCount = pBuffer->frameCount;
-        status_t res = mTrackBufferProvider->getNextBuffer(&mBuffer);
-        // At one time an upstream buffer provider had
-        // res == OK and mBuffer.frameCount == 0, doesn't seem to happen now 7/18/2014.
-        //
-        // By API spec, if res != OK, then mBuffer.frameCount == 0.
-        // but there may be improper implementations.
-        ALOG_ASSERT(res == OK || mBuffer.frameCount == 0);
-        if (res != OK || mBuffer.frameCount == 0) { // not needed by API spec, but to be safe.
-            pBuffer->raw = NULL;
-            pBuffer->frameCount = 0;
-            return res;
-        }
-        mConsumed = 0;
-    }
-    ALOG_ASSERT(mConsumed < mBuffer.frameCount);
-    size_t count = min(mLocalBufferFrameCount, mBuffer.frameCount - mConsumed);
-    count = min(count, pBuffer->frameCount);
-    pBuffer->raw = mLocalBufferData;
-    pBuffer->frameCount = count;
-    copyFrames(pBuffer->raw, (uint8_t*)mBuffer.raw + mConsumed * mInputFrameSize,
-            pBuffer->frameCount);
-    return OK;
-}
-
-void CopyBufferProvider::releaseBuffer(AudioBufferProvider::Buffer *pBuffer)
-{
-    //ALOGV("CopyBufferProvider(%p)::releaseBuffer(%p(%zu))",
-    //        this, pBuffer, pBuffer->frameCount);
-    if (mLocalBufferFrameCount == 0) {
-        mTrackBufferProvider->releaseBuffer(pBuffer);
-        return;
-    }
-    // LOG_ALWAYS_FATAL_IF(pBuffer->frameCount == 0, "Invalid framecount");
-    mConsumed += pBuffer->frameCount; // TODO: update for efficiency to reuse existing content
-    if (mConsumed != 0 && mConsumed >= mBuffer.frameCount) {
-        mTrackBufferProvider->releaseBuffer(&mBuffer);
-        ALOG_ASSERT(mBuffer.frameCount == 0);
-    }
-    pBuffer->raw = NULL;
-    pBuffer->frameCount = 0;
-}
-
-void CopyBufferProvider::reset()
-{
-    if (mBuffer.frameCount != 0) {
-        mTrackBufferProvider->releaseBuffer(&mBuffer);
-    }
-    mConsumed = 0;
-}
-
-DownmixerBufferProvider::DownmixerBufferProvider(
-        audio_channel_mask_t inputChannelMask,
-        audio_channel_mask_t outputChannelMask, audio_format_t format,
-        uint32_t sampleRate, int32_t sessionId, size_t bufferFrameCount) :
-        CopyBufferProvider(
-            audio_bytes_per_sample(format) * audio_channel_count_from_out_mask(inputChannelMask),
-            audio_bytes_per_sample(format) * audio_channel_count_from_out_mask(outputChannelMask),
-            bufferFrameCount)  // set bufferFrameCount to 0 to do in-place
-{
-    ALOGV("DownmixerBufferProvider(%p)(%#x, %#x, %#x %u %d)",
-            this, inputChannelMask, outputChannelMask, format,
-            sampleRate, sessionId);
-    if (!sIsMultichannelCapable
-            || EffectCreate(&sDwnmFxDesc.uuid,
-                    sessionId,
-                    SESSION_ID_INVALID_AND_IGNORED,
-                    &mDownmixHandle) != 0) {
-         ALOGE("DownmixerBufferProvider() error creating downmixer effect");
-         mDownmixHandle = NULL;
-         return;
-     }
-     // channel input configuration will be overridden per-track
-     mDownmixConfig.inputCfg.channels = inputChannelMask;   // FIXME: Should be bits
-     mDownmixConfig.outputCfg.channels = outputChannelMask; // FIXME: should be bits
-     mDownmixConfig.inputCfg.format = format;
-     mDownmixConfig.outputCfg.format = format;
-     mDownmixConfig.inputCfg.samplingRate = sampleRate;
-     mDownmixConfig.outputCfg.samplingRate = sampleRate;
-     mDownmixConfig.inputCfg.accessMode = EFFECT_BUFFER_ACCESS_READ;
-     mDownmixConfig.outputCfg.accessMode = EFFECT_BUFFER_ACCESS_WRITE;
-     // input and output buffer provider, and frame count will not be used as the downmix effect
-     // process() function is called directly (see DownmixerBufferProvider::getNextBuffer())
-     mDownmixConfig.inputCfg.mask = EFFECT_CONFIG_SMP_RATE | EFFECT_CONFIG_CHANNELS |
-             EFFECT_CONFIG_FORMAT | EFFECT_CONFIG_ACC_MODE;
-     mDownmixConfig.outputCfg.mask = mDownmixConfig.inputCfg.mask;
-
-     int cmdStatus;
-     uint32_t replySize = sizeof(int);
-
-     // Configure downmixer
-     status_t status = (*mDownmixHandle)->command(mDownmixHandle,
-             EFFECT_CMD_SET_CONFIG /*cmdCode*/, sizeof(effect_config_t) /*cmdSize*/,
-             &mDownmixConfig /*pCmdData*/,
-             &replySize, &cmdStatus /*pReplyData*/);
-     if (status != 0 || cmdStatus != 0) {
-         ALOGE("DownmixerBufferProvider() error %d cmdStatus %d while configuring downmixer",
-                 status, cmdStatus);
-         EffectRelease(mDownmixHandle);
-         mDownmixHandle = NULL;
-         return;
-     }
-
-     // Enable downmixer
-     replySize = sizeof(int);
-     status = (*mDownmixHandle)->command(mDownmixHandle,
-             EFFECT_CMD_ENABLE /*cmdCode*/, 0 /*cmdSize*/, NULL /*pCmdData*/,
-             &replySize, &cmdStatus /*pReplyData*/);
-     if (status != 0 || cmdStatus != 0) {
-         ALOGE("DownmixerBufferProvider() error %d cmdStatus %d while enabling downmixer",
-                 status, cmdStatus);
-         EffectRelease(mDownmixHandle);
-         mDownmixHandle = NULL;
-         return;
-     }
-
-     // Set downmix type
-     // parameter size rounded for padding on 32bit boundary
-     const int psizePadded = ((sizeof(downmix_params_t) - 1)/sizeof(int) + 1) * sizeof(int);
-     const int downmixParamSize =
-             sizeof(effect_param_t) + psizePadded + sizeof(downmix_type_t);
-     effect_param_t * const param = (effect_param_t *) malloc(downmixParamSize);
-     param->psize = sizeof(downmix_params_t);
-     const downmix_params_t downmixParam = DOWNMIX_PARAM_TYPE;
-     memcpy(param->data, &downmixParam, param->psize);
-     const downmix_type_t downmixType = DOWNMIX_TYPE_FOLD;
-     param->vsize = sizeof(downmix_type_t);
-     memcpy(param->data + psizePadded, &downmixType, param->vsize);
-     replySize = sizeof(int);
-     status = (*mDownmixHandle)->command(mDownmixHandle,
-             EFFECT_CMD_SET_PARAM /* cmdCode */, downmixParamSize /* cmdSize */,
-             param /*pCmdData*/, &replySize, &cmdStatus /*pReplyData*/);
-     free(param);
-     if (status != 0 || cmdStatus != 0) {
-         ALOGE("DownmixerBufferProvider() error %d cmdStatus %d while setting downmix type",
-                 status, cmdStatus);
-         EffectRelease(mDownmixHandle);
-         mDownmixHandle = NULL;
-         return;
-     }
-     ALOGV("DownmixerBufferProvider() downmix type set to %d", (int) downmixType);
-}
-
-DownmixerBufferProvider::~DownmixerBufferProvider()
-{
-    ALOGV("~DownmixerBufferProvider (%p)", this);
-    EffectRelease(mDownmixHandle);
-    mDownmixHandle = NULL;
-}
-
-void DownmixerBufferProvider::copyFrames(void *dst, const void *src, size_t frames)
-{
-    mDownmixConfig.inputCfg.buffer.frameCount = frames;
-    mDownmixConfig.inputCfg.buffer.raw = const_cast<void *>(src);
-    mDownmixConfig.outputCfg.buffer.frameCount = frames;
-    mDownmixConfig.outputCfg.buffer.raw = dst;
-    // may be in-place if src == dst.
-    status_t res = (*mDownmixHandle)->process(mDownmixHandle,
-            &mDownmixConfig.inputCfg.buffer, &mDownmixConfig.outputCfg.buffer);
-    ALOGE_IF(res != OK, "DownmixBufferProvider error %d", res);
-}
-
-/* call once in a pthread_once handler. */
-/*static*/ status_t DownmixerBufferProvider::init()
-{
-    // find multichannel downmix effect if we have to play multichannel content
-    uint32_t numEffects = 0;
-    int ret = EffectQueryNumberEffects(&numEffects);
-    if (ret != 0) {
-        ALOGE("AudioMixer() error %d querying number of effects", ret);
-        return NO_INIT;
-    }
-    ALOGV("EffectQueryNumberEffects() numEffects=%d", numEffects);
-
-    for (uint32_t i = 0 ; i < numEffects ; i++) {
-        if (EffectQueryEffect(i, &sDwnmFxDesc) == 0) {
-            ALOGV("effect %d is called %s", i, sDwnmFxDesc.name);
-            if (memcmp(&sDwnmFxDesc.type, EFFECT_UIID_DOWNMIX, sizeof(effect_uuid_t)) == 0) {
-                ALOGI("found effect \"%s\" from %s",
-                        sDwnmFxDesc.name, sDwnmFxDesc.implementor);
-                sIsMultichannelCapable = true;
-                break;
-            }
-        }
-    }
-    ALOGW_IF(!sIsMultichannelCapable, "unable to find downmix effect");
-    return NO_INIT;
-}
-
-/*static*/ bool DownmixerBufferProvider::sIsMultichannelCapable = false;
-/*static*/ effect_descriptor_t DownmixerBufferProvider::sDwnmFxDesc;
-
-RemixBufferProvider::RemixBufferProvider(audio_channel_mask_t inputChannelMask,
-        audio_channel_mask_t outputChannelMask, audio_format_t format,
-        size_t bufferFrameCount) :
-        CopyBufferProvider(
-                audio_bytes_per_sample(format)
-                    * audio_channel_count_from_out_mask(inputChannelMask),
-                audio_bytes_per_sample(format)
-                    * audio_channel_count_from_out_mask(outputChannelMask),
-                bufferFrameCount),
-        mFormat(format),
-        mSampleSize(audio_bytes_per_sample(format)),
-        mInputChannels(audio_channel_count_from_out_mask(inputChannelMask)),
-        mOutputChannels(audio_channel_count_from_out_mask(outputChannelMask))
-{
-    ALOGV("RemixBufferProvider(%p)(%#x, %#x, %#x) %zu %zu",
-            this, format, inputChannelMask, outputChannelMask,
-            mInputChannels, mOutputChannels);
-    (void) memcpy_by_index_array_initialization_from_channel_mask(
-            mIdxAry, ARRAY_SIZE(mIdxAry), outputChannelMask, inputChannelMask);
-}
-
-void RemixBufferProvider::copyFrames(void *dst, const void *src, size_t frames)
-{
-    memcpy_by_index_array(dst, mOutputChannels,
-            src, mInputChannels, mIdxAry, mSampleSize, frames);
-}
-
-ReformatBufferProvider::ReformatBufferProvider(int32_t channelCount,
-        audio_format_t inputFormat, audio_format_t outputFormat,
-        size_t bufferFrameCount) :
-        CopyBufferProvider(
-                channelCount * audio_bytes_per_sample(inputFormat),
-                channelCount * audio_bytes_per_sample(outputFormat),
-                bufferFrameCount),
-        mChannelCount(channelCount),
-        mInputFormat(inputFormat),
-        mOutputFormat(outputFormat)
-{
-    ALOGV("ReformatBufferProvider(%p)(%u, %#x, %#x)",
-            this, channelCount, inputFormat, outputFormat);
-}
-
-void ReformatBufferProvider::copyFrames(void *dst, const void *src, size_t frames)
-{
-    memcpy_by_audio_format(dst, mOutputFormat, src, mInputFormat, frames * mChannelCount);
-}
-
-TimestretchBufferProvider::TimestretchBufferProvider(int32_t channelCount,
-        audio_format_t format, uint32_t sampleRate, const AudioPlaybackRate &playbackRate) :
-        mChannelCount(channelCount),
-        mFormat(format),
-        mSampleRate(sampleRate),
-        mFrameSize(channelCount * audio_bytes_per_sample(format)),
-        mLocalBufferFrameCount(0),
-        mLocalBufferData(NULL),
-        mRemaining(0),
-        mSonicStream(sonicCreateStream(sampleRate, mChannelCount)),
-        mFallbackFailErrorShown(false),
-        mAudioPlaybackRateValid(false)
-{
-    LOG_ALWAYS_FATAL_IF(mSonicStream == NULL,
-            "TimestretchBufferProvider can't allocate Sonic stream");
-
-    setPlaybackRate(playbackRate);
-    ALOGV("TimestretchBufferProvider(%p)(%u, %#x, %u %f %f %d %d)",
-            this, channelCount, format, sampleRate, playbackRate.mSpeed,
-            playbackRate.mPitch, playbackRate.mStretchMode, playbackRate.mFallbackMode);
-    mBuffer.frameCount = 0;
-}
-
-TimestretchBufferProvider::~TimestretchBufferProvider()
-{
-    ALOGV("~TimestretchBufferProvider(%p)", this);
-    sonicDestroyStream(mSonicStream);
-    if (mBuffer.frameCount != 0) {
-        mTrackBufferProvider->releaseBuffer(&mBuffer);
-    }
-    free(mLocalBufferData);
-}
-
-status_t TimestretchBufferProvider::getNextBuffer(
-        AudioBufferProvider::Buffer *pBuffer)
-{
-    ALOGV("TimestretchBufferProvider(%p)::getNextBuffer(%p (%zu))",
-            this, pBuffer, pBuffer->frameCount);
-
-    // BYPASS
-    //return mTrackBufferProvider->getNextBuffer(pBuffer);
-
-    // check if previously processed data is sufficient.
-    if (pBuffer->frameCount <= mRemaining) {
-        ALOGV("previous sufficient");
-        pBuffer->raw = mLocalBufferData;
-        return OK;
-    }
-
-    // do we need to resize our buffer?
-    if (pBuffer->frameCount > mLocalBufferFrameCount) {
-        void *newmem;
-        if (posix_memalign(&newmem, 32, pBuffer->frameCount * mFrameSize) == OK) {
-            if (mRemaining != 0) {
-                memcpy(newmem, mLocalBufferData, mRemaining * mFrameSize);
-            }
-            free(mLocalBufferData);
-            mLocalBufferData = newmem;
-            mLocalBufferFrameCount = pBuffer->frameCount;
-        }
-    }
-
-    // need to fetch more data
-    const size_t outputDesired = pBuffer->frameCount - mRemaining;
-    size_t dstAvailable;
-    do {
-        mBuffer.frameCount = mPlaybackRate.mSpeed == AUDIO_TIMESTRETCH_SPEED_NORMAL
-                ? outputDesired : outputDesired * mPlaybackRate.mSpeed + 1;
-
-        status_t res = mTrackBufferProvider->getNextBuffer(&mBuffer);
-
-        ALOG_ASSERT(res == OK || mBuffer.frameCount == 0);
-        if (res != OK || mBuffer.frameCount == 0) { // not needed by API spec, but to be safe.
-            ALOGV("upstream provider cannot provide data");
-            if (mRemaining == 0) {
-                pBuffer->raw = NULL;
-                pBuffer->frameCount = 0;
-                return res;
-            } else { // return partial count
-                pBuffer->raw = mLocalBufferData;
-                pBuffer->frameCount = mRemaining;
-                return OK;
-            }
-        }
-
-        // time-stretch the data
-        dstAvailable = min(mLocalBufferFrameCount - mRemaining, outputDesired);
-        size_t srcAvailable = mBuffer.frameCount;
-        processFrames((uint8_t*)mLocalBufferData + mRemaining * mFrameSize, &dstAvailable,
-                mBuffer.raw, &srcAvailable);
-
-        // release all data consumed
-        mBuffer.frameCount = srcAvailable;
-        mTrackBufferProvider->releaseBuffer(&mBuffer);
-    } while (dstAvailable == 0); // try until we get output data or upstream provider fails.
-
-    // update buffer vars with the actual data processed and return with buffer
-    mRemaining += dstAvailable;
-
-    pBuffer->raw = mLocalBufferData;
-    pBuffer->frameCount = mRemaining;
-
-    return OK;
-}
-
-void TimestretchBufferProvider::releaseBuffer(AudioBufferProvider::Buffer *pBuffer)
-{
-    ALOGV("TimestretchBufferProvider(%p)::releaseBuffer(%p (%zu))",
-       this, pBuffer, pBuffer->frameCount);
-
-    // BYPASS
-    //return mTrackBufferProvider->releaseBuffer(pBuffer);
-
-    // LOG_ALWAYS_FATAL_IF(pBuffer->frameCount == 0, "Invalid framecount");
-    if (pBuffer->frameCount < mRemaining) {
-        memcpy(mLocalBufferData,
-                (uint8_t*)mLocalBufferData + pBuffer->frameCount * mFrameSize,
-                (mRemaining - pBuffer->frameCount) * mFrameSize);
-        mRemaining -= pBuffer->frameCount;
-    } else if (pBuffer->frameCount == mRemaining) {
-        mRemaining = 0;
-    } else {
-        LOG_ALWAYS_FATAL("Releasing more frames(%zu) than available(%zu)",
-                pBuffer->frameCount, mRemaining);
-    }
-
-    pBuffer->raw = NULL;
-    pBuffer->frameCount = 0;
-}
-
-void TimestretchBufferProvider::reset()
-{
-    mRemaining = 0;
-}
-
-status_t TimestretchBufferProvider::setPlaybackRate(const AudioPlaybackRate &playbackRate)
-{
-    mPlaybackRate = playbackRate;
-    mFallbackFailErrorShown = false;
-    sonicSetSpeed(mSonicStream, mPlaybackRate.mSpeed);
-    //TODO: pitch is ignored for now
-    //TODO: optimize: if parameters are the same, don't do any extra computation.
-
-    mAudioPlaybackRateValid = isAudioPlaybackRateValid(mPlaybackRate);
-    return OK;
-}
-
-void TimestretchBufferProvider::processFrames(void *dstBuffer, size_t *dstFrames,
-        const void *srcBuffer, size_t *srcFrames)
-{
-    ALOGV("processFrames(%zu %zu)  remaining(%zu)", *dstFrames, *srcFrames, mRemaining);
-    // Note dstFrames is the required number of frames.
-
-    if (!mAudioPlaybackRateValid) {
-        //fallback mode
-        // Ensure consumption from src is as expected.
-        // TODO: add logic to track "very accurate" consumption related to speed, original sampling
-        // rate, actual frames processed.
-
-        const size_t targetSrc = *dstFrames * mPlaybackRate.mSpeed;
-        if (*srcFrames < targetSrc) { // limit dst frames to that possible
-            *dstFrames = *srcFrames / mPlaybackRate.mSpeed;
-        } else if (*srcFrames > targetSrc + 1) {
-            *srcFrames = targetSrc + 1;
-        }
-        if (*dstFrames > 0) {
-            switch(mPlaybackRate.mFallbackMode) {
-            case AUDIO_TIMESTRETCH_FALLBACK_CUT_REPEAT:
-                if (*dstFrames <= *srcFrames) {
-                      size_t copySize = mFrameSize * *dstFrames;
-                      memcpy(dstBuffer, srcBuffer, copySize);
-                  } else {
-                      // cyclically repeat the source.
-                      for (size_t count = 0; count < *dstFrames; count += *srcFrames) {
-                          size_t remaining = min(*srcFrames, *dstFrames - count);
-                          memcpy((uint8_t*)dstBuffer + mFrameSize * count,
-                                  srcBuffer, mFrameSize * remaining);
-                      }
-                  }
-                break;
-            case AUDIO_TIMESTRETCH_FALLBACK_DEFAULT:
-            case AUDIO_TIMESTRETCH_FALLBACK_MUTE:
-                memset(dstBuffer,0, mFrameSize * *dstFrames);
-                break;
-            case AUDIO_TIMESTRETCH_FALLBACK_FAIL:
-            default:
-                if(!mFallbackFailErrorShown) {
-                    ALOGE("invalid parameters in TimestretchBufferProvider fallbackMode:%d",
-                            mPlaybackRate.mFallbackMode);
-                    mFallbackFailErrorShown = true;
-                }
-                break;
-            }
-        }
-    } else {
-        switch (mFormat) {
-        case AUDIO_FORMAT_PCM_FLOAT:
-            if (sonicWriteFloatToStream(mSonicStream, (float*)srcBuffer, *srcFrames) != 1) {
-                ALOGE("sonicWriteFloatToStream cannot realloc");
-                *srcFrames = 0; // cannot consume all of srcBuffer
-            }
-            *dstFrames = sonicReadFloatFromStream(mSonicStream, (float*)dstBuffer, *dstFrames);
-            break;
-        case AUDIO_FORMAT_PCM_16_BIT:
-            if (sonicWriteShortToStream(mSonicStream, (short*)srcBuffer, *srcFrames) != 1) {
-                ALOGE("sonicWriteShortToStream cannot realloc");
-                *srcFrames = 0; // cannot consume all of srcBuffer
-            }
-            *dstFrames = sonicReadShortFromStream(mSonicStream, (short*)dstBuffer, *dstFrames);
-            break;
-        default:
-            // could also be caught on construction
-            LOG_ALWAYS_FATAL("invalid format %#x for TimestretchBufferProvider", mFormat);
-        }
-    }
-}
-// ----------------------------------------------------------------------------
-} // namespace android
diff --git a/services/audioflinger/BufferProviders.h b/services/audioflinger/BufferProviders.h
deleted file mode 100644
index abd43c6..0000000
--- a/services/audioflinger/BufferProviders.h
+++ /dev/null
@@ -1,197 +0,0 @@
-/*
- * Copyright (C) 2015 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_BUFFER_PROVIDERS_H
-#define ANDROID_BUFFER_PROVIDERS_H
-
-#include <stdint.h>
-#include <sys/types.h>
-
-#include <hardware/audio_effect.h>
-#include <media/AudioBufferProvider.h>
-#include <system/audio.h>
-#include <sonic.h>
-
-namespace android {
-
-// ----------------------------------------------------------------------------
-
-class PassthruBufferProvider : public AudioBufferProvider {
-public:
-    PassthruBufferProvider() : mTrackBufferProvider(NULL) { }
-
-    virtual ~PassthruBufferProvider() { }
-
-    // call this to release the buffer to the upstream provider.
-    // treat it as an audio discontinuity for future samples.
-    virtual void reset() { }
-
-    // set the upstream buffer provider. Consider calling "reset" before this function.
-    virtual void setBufferProvider(AudioBufferProvider *p) {
-        mTrackBufferProvider = p;
-    }
-
-protected:
-    AudioBufferProvider *mTrackBufferProvider;
-};
-
-// Base AudioBufferProvider class used for DownMixerBufferProvider, RemixBufferProvider,
-// and ReformatBufferProvider.
-// It handles a private buffer for use in converting format or channel masks from the
-// input data to a form acceptable by the mixer.
-// TODO: Make a ResamplerBufferProvider when integers are entirely removed from the
-// processing pipeline.
-class CopyBufferProvider : public PassthruBufferProvider {
-public:
-    // Use a private buffer of bufferFrameCount frames (each frame is outputFrameSize bytes).
-    // If bufferFrameCount is 0, no private buffer is created and in-place modification of
-    // the upstream buffer provider's buffers is performed by copyFrames().
-    CopyBufferProvider(size_t inputFrameSize, size_t outputFrameSize,
-            size_t bufferFrameCount);
-    virtual ~CopyBufferProvider();
-
-    // Overrides AudioBufferProvider methods
-    virtual status_t getNextBuffer(Buffer *buffer);
-    virtual void releaseBuffer(Buffer *buffer);
-
-    // Overrides PassthruBufferProvider
-    virtual void reset();
-
-    // this function should be supplied by the derived class.  It converts
-    // #frames in the *src pointer to the *dst pointer.  It is public because
-    // some providers will allow this to work on arbitrary buffers outside
-    // of the internal buffers.
-    virtual void copyFrames(void *dst, const void *src, size_t frames) = 0;
-
-protected:
-    const size_t         mInputFrameSize;
-    const size_t         mOutputFrameSize;
-private:
-    AudioBufferProvider::Buffer mBuffer;
-    const size_t         mLocalBufferFrameCount;
-    void                *mLocalBufferData;
-    size_t               mConsumed;
-};
-
-// DownmixerBufferProvider derives from CopyBufferProvider to provide
-// position dependent downmixing by an Audio Effect.
-class DownmixerBufferProvider : public CopyBufferProvider {
-public:
-    DownmixerBufferProvider(audio_channel_mask_t inputChannelMask,
-            audio_channel_mask_t outputChannelMask, audio_format_t format,
-            uint32_t sampleRate, int32_t sessionId, size_t bufferFrameCount);
-    virtual ~DownmixerBufferProvider();
-    //Overrides
-    virtual void copyFrames(void *dst, const void *src, size_t frames);
-
-    bool isValid() const { return mDownmixHandle != NULL; }
-    static status_t init();
-    static bool isMultichannelCapable() { return sIsMultichannelCapable; }
-
-protected:
-    effect_handle_t    mDownmixHandle;
-    effect_config_t    mDownmixConfig;
-
-    // effect descriptor for the downmixer used by the mixer
-    static effect_descriptor_t sDwnmFxDesc;
-    // indicates whether a downmix effect has been found and is usable by this mixer
-    static bool                sIsMultichannelCapable;
-    // FIXME: should we allow effects outside of the framework?
-    // We need to here. A special ioId that must be <= -2 so it does not map to a session.
-    static const int32_t SESSION_ID_INVALID_AND_IGNORED = -2;
-};
-
-// RemixBufferProvider derives from CopyBufferProvider to perform an
-// upmix or downmix to the proper channel count and mask.
-class RemixBufferProvider : public CopyBufferProvider {
-public:
-    RemixBufferProvider(audio_channel_mask_t inputChannelMask,
-            audio_channel_mask_t outputChannelMask, audio_format_t format,
-            size_t bufferFrameCount);
-    //Overrides
-    virtual void copyFrames(void *dst, const void *src, size_t frames);
-
-protected:
-    const audio_format_t mFormat;
-    const size_t         mSampleSize;
-    const size_t         mInputChannels;
-    const size_t         mOutputChannels;
-    int8_t               mIdxAry[sizeof(uint32_t) * 8]; // 32 bits => channel indices
-};
-
-// ReformatBufferProvider derives from CopyBufferProvider to convert the input data
-// to an acceptable mixer input format type.
-class ReformatBufferProvider : public CopyBufferProvider {
-public:
-    ReformatBufferProvider(int32_t channelCount,
-            audio_format_t inputFormat, audio_format_t outputFormat,
-            size_t bufferFrameCount);
-    virtual void copyFrames(void *dst, const void *src, size_t frames);
-
-protected:
-    const uint32_t       mChannelCount;
-    const audio_format_t mInputFormat;
-    const audio_format_t mOutputFormat;
-};
-
-// TimestretchBufferProvider derives from PassthruBufferProvider for time stretching
-class TimestretchBufferProvider : public PassthruBufferProvider {
-public:
-    TimestretchBufferProvider(int32_t channelCount,
-            audio_format_t format, uint32_t sampleRate,
-            const AudioPlaybackRate &playbackRate);
-    virtual ~TimestretchBufferProvider();
-
-    // Overrides AudioBufferProvider methods
-    virtual status_t getNextBuffer(Buffer* buffer);
-    virtual void releaseBuffer(Buffer* buffer);
-
-    // Overrides PassthruBufferProvider
-    virtual void reset();
-
-    virtual status_t setPlaybackRate(const AudioPlaybackRate &playbackRate);
-
-    // processes frames
-    // dstBuffer is where to place the data
-    // dstFrames [in/out] is the desired frames (return with actual placed in buffer)
-    // srcBuffer is the source data
-    // srcFrames [in/out] is the available source frames (return with consumed)
-    virtual void processFrames(void *dstBuffer, size_t *dstFrames,
-            const void *srcBuffer, size_t *srcFrames);
-
-protected:
-    const uint32_t       mChannelCount;
-    const audio_format_t mFormat;
-    const uint32_t       mSampleRate; // const for now (TODO change this)
-    const size_t         mFrameSize;
-    AudioPlaybackRate    mPlaybackRate;
-
-private:
-    AudioBufferProvider::Buffer mBuffer;          // for upstream request
-    size_t               mLocalBufferFrameCount;  // size of local buffer
-    void                *mLocalBufferData;        // internally allocated buffer for data returned
-                                                  // to caller
-    size_t               mRemaining;              // remaining data in local buffer
-    sonicStream          mSonicStream;            // handle to sonic timestretch object
-    //FIXME: this dependency should be abstracted out
-    bool                 mFallbackFailErrorShown; // log fallback error only once
-    bool                 mAudioPlaybackRateValid; // flag for current parameters validity
-};
-
-// ----------------------------------------------------------------------------
-} // namespace android
-
-#endif // ANDROID_BUFFER_PROVIDERS_H
diff --git a/services/audioflinger/Effects.cpp b/services/audioflinger/Effects.cpp
index 09e7fd8..b4029c7 100644
--- a/services/audioflinger/Effects.cpp
+++ b/services/audioflinger/Effects.cpp
@@ -21,10 +21,11 @@
 
 #include "Configuration.h"
 #include <utils/Log.h>
-#include <audio_effects/effect_visualizer.h>
 #include <audio_utils/primitives.h>
 #include <private/media/AudioEffectShared.h>
-#include <media/EffectsFactoryApi.h>
+#include <media/audiohal/EffectHalInterface.h>
+#include <media/audiohal/EffectsFactoryHalInterface.h>
+#include <system/audio_effects/effect_visualizer.h>
 
 #include "AudioFlinger.h"
 #include "ServiceUtilities.h"
@@ -65,7 +66,6 @@
       mThread(thread), mChain(chain), mId(id), mSessionId(sessionId),
       mDescriptor(*desc),
       // mConfig is set by configure() and not used before then
-      mEffectInterface(NULL),
       mStatus(NO_INIT), mState(IDLE),
       // mMaxDisableWaitCnt is set by configure() and not used before then
       // mDisableWaitCnt is set by process() and updateState() and not used before then
@@ -76,7 +76,15 @@
     int lStatus;
 
     // create effect engine from effect factory
-    mStatus = EffectCreate(&desc->uuid, sessionId, thread->id(), &mEffectInterface);
+    mStatus = -ENODEV;
+    sp<AudioFlinger> audioFlinger = mAudioFlinger.promote();
+    if (audioFlinger != 0) {
+        sp<EffectsFactoryHalInterface> effectsFactory = audioFlinger->getEffectsFactory();
+        if (effectsFactory != 0) {
+            mStatus = effectsFactory->createEffect(
+                    &desc->uuid, sessionId, thread->id(), &mEffectInterface);
+        }
+    }
 
     if (mStatus != NO_ERROR) {
         return;
@@ -88,22 +96,22 @@
     }
 
     setOffloaded(thread->type() == ThreadBase::OFFLOAD, thread->id());
+    ALOGV("Constructor success name %s, Interface %p", mDescriptor.name, mEffectInterface.get());
 
-    ALOGV("Constructor success name %s, Interface %p", mDescriptor.name, mEffectInterface);
     return;
 Error:
-    EffectRelease(mEffectInterface);
-    mEffectInterface = NULL;
+    mEffectInterface.clear();
     ALOGV("Constructor Error %d", mStatus);
 }
 
 AudioFlinger::EffectModule::~EffectModule()
 {
     ALOGV("Destructor %p", this);
-    if (mEffectInterface != NULL) {
+    if (mEffectInterface != 0) {
         ALOGW("EffectModule %p destructor called with unreleased interface", this);
         release_l();
     }
+
 }
 
 status_t AudioFlinger::EffectModule::addHandle(EffectHandle *handle)
@@ -180,6 +188,7 @@
     // this object is released which can happen after next process is called.
     if (mHandles.size() == 0 && !mPinned) {
         mState = DESTROYED;
+        mEffectInterface->close();
     }
 
     return mHandles.size();
@@ -267,9 +276,7 @@
 {
     Mutex::Autolock _l(mLock);
 
-    if (mState == DESTROYED || mEffectInterface == NULL ||
-            mConfig.inputCfg.buffer.raw == NULL ||
-            mConfig.outputCfg.buffer.raw == NULL) {
+    if (mState == DESTROYED || mEffectInterface == 0 || mInBuffer == 0 || mOutBuffer == 0) {
         return;
     }
 
@@ -283,9 +290,7 @@
         int ret;
         if (isProcessImplemented()) {
             // do the actual processing in the effect engine
-            ret = (*mEffectInterface)->process(mEffectInterface,
-                                                   &mConfig.inputCfg.buffer,
-                                                   &mConfig.outputCfg.buffer);
+            ret = mEffectInterface->process();
         } else {
             if (mConfig.inputCfg.buffer.raw != mConfig.outputCfg.buffer.raw) {
                 size_t frameCnt = mConfig.inputCfg.buffer.frameCount * FCC_2;  //always stereo here
@@ -331,10 +336,10 @@
 
 void AudioFlinger::EffectModule::reset_l()
 {
-    if (mStatus != NO_ERROR || mEffectInterface == NULL) {
+    if (mStatus != NO_ERROR || mEffectInterface == 0) {
         return;
     }
-    (*mEffectInterface)->command(mEffectInterface, EFFECT_CMD_RESET, 0, NULL, 0, NULL);
+    mEffectInterface->command(EFFECT_CMD_RESET, 0, NULL, 0, NULL);
 }
 
 status_t AudioFlinger::EffectModule::configure()
@@ -344,7 +349,7 @@
     uint32_t size;
     audio_channel_mask_t channelMask;
 
-    if (mEffectInterface == NULL) {
+    if (mEffectInterface == 0) {
         status = NO_INIT;
         goto exit;
     }
@@ -403,18 +408,23 @@
     mConfig.outputCfg.mask = EFFECT_CONFIG_ALL;
     mConfig.inputCfg.buffer.frameCount = thread->frameCount();
     mConfig.outputCfg.buffer.frameCount = mConfig.inputCfg.buffer.frameCount;
+    if (mInBuffer != 0) {
+        mInBuffer->setFrameCount(mConfig.inputCfg.buffer.frameCount);
+    }
+    if (mOutBuffer != 0) {
+        mOutBuffer->setFrameCount(mConfig.outputCfg.buffer.frameCount);
+    }
 
     ALOGV("configure() %p thread %p buffer %p framecount %zu",
             this, thread.get(), mConfig.inputCfg.buffer.raw, mConfig.inputCfg.buffer.frameCount);
 
     status_t cmdStatus;
     size = sizeof(int);
-    status = (*mEffectInterface)->command(mEffectInterface,
-                                                   EFFECT_CMD_SET_CONFIG,
-                                                   sizeof(effect_config_t),
-                                                   &mConfig,
-                                                   &size,
-                                                   &cmdStatus);
+    status = mEffectInterface->command(EFFECT_CMD_SET_CONFIG,
+                                       sizeof(effect_config_t),
+                                       &mConfig,
+                                       &size,
+                                       &cmdStatus);
     if (status == 0) {
         status = cmdStatus;
     }
@@ -436,12 +446,11 @@
         }
 
         *((int32_t *)p->data + 1)= latency;
-        (*mEffectInterface)->command(mEffectInterface,
-                                     EFFECT_CMD_SET_PARAM,
-                                     sizeof(effect_param_t) + 8,
-                                     &buf32,
-                                     &size,
-                                     &cmdStatus);
+        mEffectInterface->command(EFFECT_CMD_SET_PARAM,
+                                  sizeof(effect_param_t) + 8,
+                                  &buf32,
+                                  &size,
+                                  &cmdStatus);
     }
 
     mMaxDisableWaitCnt = (MAX_DISABLE_TIME_MS * mConfig.outputCfg.samplingRate) /
@@ -455,17 +464,16 @@
 status_t AudioFlinger::EffectModule::init()
 {
     Mutex::Autolock _l(mLock);
-    if (mEffectInterface == NULL) {
+    if (mEffectInterface == 0) {
         return NO_INIT;
     }
     status_t cmdStatus;
     uint32_t size = sizeof(status_t);
-    status_t status = (*mEffectInterface)->command(mEffectInterface,
-                                                   EFFECT_CMD_INIT,
-                                                   0,
-                                                   NULL,
-                                                   &size,
-                                                   &cmdStatus);
+    status_t status = mEffectInterface->command(EFFECT_CMD_INIT,
+                                                0,
+                                                NULL,
+                                                &size,
+                                                &cmdStatus);
     if (status == 0) {
         status = cmdStatus;
     }
@@ -478,9 +486,10 @@
          (mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_POST_PROC) {
         sp<ThreadBase> thread = mThread.promote();
         if (thread != 0) {
-            audio_stream_t *stream = thread->stream();
-            if (stream != NULL) {
-                stream->add_audio_effect(stream, mEffectInterface);
+            sp<StreamHalInterface> stream = thread->stream();
+            if (stream != 0) {
+                status_t result = stream->addEffect(mEffectInterface);
+                ALOGE_IF(result != OK, "Error when adding effect: %d", result);
             }
         }
     }
@@ -506,7 +515,7 @@
 
 status_t AudioFlinger::EffectModule::start_l()
 {
-    if (mEffectInterface == NULL) {
+    if (mEffectInterface == 0) {
         return NO_INIT;
     }
     if (mStatus != NO_ERROR) {
@@ -514,12 +523,11 @@
     }
     status_t cmdStatus;
     uint32_t size = sizeof(status_t);
-    status_t status = (*mEffectInterface)->command(mEffectInterface,
-                                                   EFFECT_CMD_ENABLE,
-                                                   0,
-                                                   NULL,
-                                                   &size,
-                                                   &cmdStatus);
+    status_t status = mEffectInterface->command(EFFECT_CMD_ENABLE,
+                                                0,
+                                                NULL,
+                                                &size,
+                                                &cmdStatus);
     if (status == 0) {
         status = cmdStatus;
     }
@@ -537,7 +545,7 @@
 
 status_t AudioFlinger::EffectModule::stop_l()
 {
-    if (mEffectInterface == NULL) {
+    if (mEffectInterface == 0) {
         return NO_INIT;
     }
     if (mStatus != NO_ERROR) {
@@ -545,12 +553,11 @@
     }
     status_t cmdStatus = NO_ERROR;
     uint32_t size = sizeof(status_t);
-    status_t status = (*mEffectInterface)->command(mEffectInterface,
-                                                   EFFECT_CMD_DISABLE,
-                                                   0,
-                                                   NULL,
-                                                   &size,
-                                                   &cmdStatus);
+    status_t status = mEffectInterface->command(EFFECT_CMD_DISABLE,
+                                                0,
+                                                NULL,
+                                                &size,
+                                                &cmdStatus);
     if (status == NO_ERROR) {
         status = cmdStatus;
     }
@@ -563,11 +570,11 @@
 // must be called with EffectChain::mLock held
 void AudioFlinger::EffectModule::release_l()
 {
-    if (mEffectInterface != NULL) {
+    if (mEffectInterface != 0) {
         remove_effect_from_hal_l();
         // release effect engine
-        EffectRelease(mEffectInterface);
-        mEffectInterface = NULL;
+        mEffectInterface->close();
+        mEffectInterface.clear();
     }
 }
 
@@ -577,9 +584,10 @@
              (mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_POST_PROC) {
         sp<ThreadBase> thread = mThread.promote();
         if (thread != 0) {
-            audio_stream_t *stream = thread->stream();
-            if (stream != NULL) {
-                stream->remove_audio_effect(stream, mEffectInterface);
+            sp<StreamHalInterface> stream = thread->stream();
+            if (stream != 0) {
+                status_t result = stream->removeEffect(mEffectInterface);
+                ALOGE_IF(result != OK, "Error when removing effect: %d", result);
             }
         }
     }
@@ -600,25 +608,26 @@
                                              void *pReplyData)
 {
     Mutex::Autolock _l(mLock);
-    ALOGVV("command(), cmdCode: %d, mEffectInterface: %p", cmdCode, mEffectInterface);
+    ALOGVV("command(), cmdCode: %d, mEffectInterface: %p", cmdCode, mEffectInterface.get());
 
-    if (mState == DESTROYED || mEffectInterface == NULL) {
+    if (mState == DESTROYED || mEffectInterface == 0) {
         return NO_INIT;
     }
     if (mStatus != NO_ERROR) {
         return mStatus;
     }
     if (cmdCode == EFFECT_CMD_GET_PARAM &&
-            (*replySize < sizeof(effect_param_t) ||
-                    ((effect_param_t *)pCmdData)->psize > *replySize - sizeof(effect_param_t))) {
-        android_errorWriteLog(0x534e4554, "29251553");
-        return -EINVAL;
-    }
-    if (cmdCode == EFFECT_CMD_GET_PARAM &&
             (sizeof(effect_param_t) > cmdSize ||
                     ((effect_param_t *)pCmdData)->psize > cmdSize
                                                           - sizeof(effect_param_t))) {
         android_errorWriteLog(0x534e4554, "32438594");
+        android_errorWriteLog(0x534e4554, "33003822");
+        return -EINVAL;
+    }
+    if (cmdCode == EFFECT_CMD_GET_PARAM &&
+            (*replySize < sizeof(effect_param_t) ||
+                    ((effect_param_t *)pCmdData)->psize > *replySize - sizeof(effect_param_t))) {
+        android_errorWriteLog(0x534e4554, "29251553");
         return -EINVAL;
     }
     if (cmdCode == EFFECT_CMD_GET_PARAM &&
@@ -653,12 +662,11 @@
         android_errorWriteLog(0x534e4554, "30204301");
         return -EINVAL;
     }
-    status_t status = (*mEffectInterface)->command(mEffectInterface,
-                                                   cmdCode,
-                                                   cmdSize,
-                                                   pCmdData,
-                                                   replySize,
-                                                   pReplyData);
+    status_t status = mEffectInterface->command(cmdCode,
+                                                cmdSize,
+                                                pCmdData,
+                                                replySize,
+                                                pReplyData);
     if (cmdCode != EFFECT_CMD_GET_PARAM && status == NO_ERROR) {
         uint32_t size = (replySize == NULL) ? 0 : *replySize;
         for (size_t i = 1; i < mHandles.size(); i++) {
@@ -760,6 +768,28 @@
     }
 }
 
+void AudioFlinger::EffectModule::setInBuffer(const sp<EffectBufferHalInterface>& buffer) {
+    if (buffer != 0) {
+        mConfig.inputCfg.buffer.raw = buffer->audioBuffer()->raw;
+        buffer->setFrameCount(mConfig.inputCfg.buffer.frameCount);
+    } else {
+        mConfig.inputCfg.buffer.raw = NULL;
+    }
+    mInBuffer = buffer;
+    mEffectInterface->setInBuffer(buffer);
+}
+
+void AudioFlinger::EffectModule::setOutBuffer(const sp<EffectBufferHalInterface>& buffer) {
+    if (buffer != 0) {
+        mConfig.outputCfg.buffer.raw = buffer->audioBuffer()->raw;
+        buffer->setFrameCount(mConfig.outputCfg.buffer.frameCount);
+    } else {
+        mConfig.outputCfg.buffer.raw = NULL;
+    }
+    mOutBuffer = buffer;
+    mEffectInterface->setOutBuffer(buffer);
+}
+
 status_t AudioFlinger::EffectModule::setVolume(uint32_t *left, uint32_t *right, bool controller)
 {
     Mutex::Autolock _l(mLock);
@@ -780,12 +810,11 @@
         if (controller) {
             pVolume = volume;
         }
-        status = (*mEffectInterface)->command(mEffectInterface,
-                                              EFFECT_CMD_SET_VOLUME,
-                                              size,
-                                              volume,
-                                              &size,
-                                              pVolume);
+        status = mEffectInterface->command(EFFECT_CMD_SET_VOLUME,
+                                           size,
+                                           volume,
+                                           &size,
+                                           pVolume);
         if (controller && status == NO_ERROR && size == sizeof(volume)) {
             *left = volume[0];
             *right = volume[1];
@@ -810,12 +839,11 @@
         uint32_t size = sizeof(status_t);
         uint32_t cmd = audio_is_output_devices(device) ? EFFECT_CMD_SET_DEVICE :
                             EFFECT_CMD_SET_INPUT_DEVICE;
-        status = (*mEffectInterface)->command(mEffectInterface,
-                                              cmd,
-                                              sizeof(uint32_t),
-                                              &device,
-                                              &size,
-                                              &cmdStatus);
+        status = mEffectInterface->command(cmd,
+                                           sizeof(uint32_t),
+                                           &device,
+                                           &size,
+                                           &cmdStatus);
     }
     return status;
 }
@@ -830,12 +858,11 @@
     if ((mDescriptor.flags & EFFECT_FLAG_AUDIO_MODE_MASK) == EFFECT_FLAG_AUDIO_MODE_IND) {
         status_t cmdStatus;
         uint32_t size = sizeof(status_t);
-        status = (*mEffectInterface)->command(mEffectInterface,
-                                              EFFECT_CMD_SET_AUDIO_MODE,
-                                              sizeof(audio_mode_t),
-                                              &mode,
-                                              &size,
-                                              &cmdStatus);
+        status = mEffectInterface->command(EFFECT_CMD_SET_AUDIO_MODE,
+                                           sizeof(audio_mode_t),
+                                           &mode,
+                                           &size,
+                                           &cmdStatus);
         if (status == NO_ERROR) {
             status = cmdStatus;
         }
@@ -852,12 +879,11 @@
     status_t status = NO_ERROR;
     if ((mDescriptor.flags & EFFECT_FLAG_AUDIO_SOURCE_MASK) == EFFECT_FLAG_AUDIO_SOURCE_IND) {
         uint32_t size = 0;
-        status = (*mEffectInterface)->command(mEffectInterface,
-                                              EFFECT_CMD_SET_AUDIO_SOURCE,
-                                              sizeof(audio_source_t),
-                                              &source,
-                                              &size,
-                                              NULL);
+        status = mEffectInterface->command(EFFECT_CMD_SET_AUDIO_SOURCE,
+                                           sizeof(audio_source_t),
+                                           &source,
+                                           &size,
+                                           NULL);
     }
     return status;
 }
@@ -903,12 +929,11 @@
 
         cmd.isOffload = offloaded;
         cmd.ioHandle = io;
-        status = (*mEffectInterface)->command(mEffectInterface,
-                                              EFFECT_CMD_OFFLOAD,
-                                              sizeof(effect_offload_param_t),
-                                              &cmd,
-                                              &size,
-                                              &cmdStatus);
+        status = mEffectInterface->command(EFFECT_CMD_OFFLOAD,
+                                           sizeof(effect_offload_param_t),
+                                           &cmd,
+                                           &size,
+                                           &cmdStatus);
         if (status == NO_ERROR) {
             status = cmdStatus;
         }
@@ -1051,7 +1076,7 @@
 
     result.append("\t\tSession Status State Engine:\n");
     snprintf(buffer, SIZE, "\t\t%05d   %03d    %03d   %p\n",
-            mSessionId, mStatus, mState, mEffectInterface);
+            mSessionId, mStatus, mState, mEffectInterface.get());
     result.append(buffer);
 
     result.append("\t\tDescriptor:\n");
@@ -1087,7 +1112,7 @@
             mConfig.inputCfg.samplingRate,
             mConfig.inputCfg.channels,
             mConfig.inputCfg.format,
-            formatToString((audio_format_t)mConfig.inputCfg.format),
+            formatToString((audio_format_t)mConfig.inputCfg.format).c_str(),
             mConfig.inputCfg.buffer.raw);
     result.append(buffer);
 
@@ -1099,7 +1124,7 @@
             mConfig.outputCfg.samplingRate,
             mConfig.outputCfg.channels,
             mConfig.outputCfg.format,
-            formatToString((audio_format_t)mConfig.outputCfg.format));
+            formatToString((audio_format_t)mConfig.outputCfg.format).c_str());
     result.append(buffer);
 
     snprintf(buffer, SIZE, "\t\t%zu Clients:\n", mHandles.size());
@@ -1200,10 +1225,9 @@
         mEnabled = false;
     } else {
         if (thread != 0) {
-            if (thread->type() == ThreadBase::OFFLOAD) {
-                PlaybackThread *t = (PlaybackThread *)thread.get();
-                Mutex::Autolock _l(t->mLock);
-                t->broadcast_l();
+            if (thread->type() == ThreadBase::OFFLOAD || thread->type() == ThreadBase::MMAP) {
+                Mutex::Autolock _l(thread->mLock);
+                thread->broadcast_l();
             }
             if (!effect->isOffloadable()) {
                 if (thread->type() == ThreadBase::OFFLOAD) {
@@ -1245,10 +1269,9 @@
     sp<ThreadBase> thread = effect->thread().promote();
     if (thread != 0) {
         thread->checkSuspendOnEffectEnabled(effect, false, effect->sessionId());
-        if (thread->type() == ThreadBase::OFFLOAD) {
-            PlaybackThread *t = (PlaybackThread *)thread.get();
-            Mutex::Autolock _l(t->mLock);
-            t->broadcast_l();
+        if (thread->type() == ThreadBase::OFFLOAD || thread->type() == ThreadBase::MMAP) {
+            Mutex::Autolock _l(thread->mLock);
+            thread->broadcast_l();
         }
     }
 
@@ -1485,7 +1508,7 @@
 AudioFlinger::EffectChain::EffectChain(ThreadBase *thread,
                                         audio_session_t sessionId)
     : mThread(thread), mSessionId(sessionId), mActiveTrackCnt(0), mTrackCnt(0), mTailBufferCount(0),
-      mOwnInBuffer(false), mVolumeCtrlIdx(-1), mLeftVolume(UINT_MAX), mRightVolume(UINT_MAX),
+      mVolumeCtrlIdx(-1), mLeftVolume(UINT_MAX), mRightVolume(UINT_MAX),
       mNewLeftVolume(UINT_MAX), mNewRightVolume(UINT_MAX)
 {
     mStrategy = AudioSystem::getStrategyForStream(AUDIO_STREAM_MUSIC);
@@ -1498,9 +1521,6 @@
 
 AudioFlinger::EffectChain::~EffectChain()
 {
-    if (mOwnInBuffer) {
-        delete mInBuffer;
-    }
 }
 
 // getEffectFromDesc_l() must be called with ThreadBase::mLock held
@@ -1559,13 +1579,17 @@
 // Must be called with EffectChain::mLock locked
 void AudioFlinger::EffectChain::clearInputBuffer_l(const sp<ThreadBase>& thread)
 {
+    if (mInBuffer == NULL) {
+        return;
+    }
     // TODO: This will change in the future, depending on multichannel
     // and sample format changes for effects.
     // Currently effects processing is only available for stereo, AUDIO_FORMAT_PCM_16_BIT
     // (4 bytes frame size)
     const size_t frameSize =
             audio_bytes_per_sample(AUDIO_FORMAT_PCM_16_BIT) * min(FCC_2, thread->channelCount());
-    memset(mInBuffer, 0, thread->frameCount() * frameSize);
+    memset(mInBuffer->audioBuffer()->raw, 0, thread->frameCount() * frameSize);
+    mInBuffer->commit();
 }
 
 // Must be called with EffectChain::mLock locked
@@ -1581,7 +1605,8 @@
     // never process effects when:
     // - on an OFFLOAD thread
     // - no more tracks are on the session and the effect tail has been rendered
-    bool doProcess = (thread->type() != ThreadBase::OFFLOAD);
+    bool doProcess = (thread->type() != ThreadBase::OFFLOAD)
+                  && (thread->type() != ThreadBase::MMAP);
     if (!isGlobalSession) {
         bool tracksOnSession = (trackCnt() != 0);
 
@@ -1603,9 +1628,20 @@
 
     size_t size = mEffects.size();
     if (doProcess) {
+        // Only the input and output buffers of the chain can be external,
+        // and 'update' / 'commit' do nothing for allocated buffers, thus
+        // it's not needed to consider any other buffers here.
+        mInBuffer->update();
+        if (mInBuffer->audioBuffer()->raw != mOutBuffer->audioBuffer()->raw) {
+            mOutBuffer->update();
+        }
         for (size_t i = 0; i < size; i++) {
             mEffects[i]->process();
         }
+        mInBuffer->commit();
+        if (mInBuffer->audioBuffer()->raw != mOutBuffer->audioBuffer()->raw) {
+            mOutBuffer->commit();
+        }
     }
     bool doResetVolume = false;
     for (size_t i = 0; i < size; i++) {
@@ -1665,9 +1701,11 @@
         // accumulation stage. Saturation is done in EffectModule::process() before
         // calling the process in effect engine
         size_t numSamples = thread->frameCount();
-        int32_t *buffer = new int32_t[numSamples];
-        memset(buffer, 0, numSamples * sizeof(int32_t));
-        effect->setInBuffer((int16_t *)buffer);
+        sp<EffectBufferHalInterface> halBuffer;
+        status_t result = EffectBufferHalInterface::allocate(
+                numSamples * sizeof(int32_t), &halBuffer);
+        if (result != OK) return result;
+        effect->setInBuffer(halBuffer);
         // auxiliary effects output samples to chain input buffer for further processing
         // by insert effects
         effect->setOutBuffer(mInBuffer);
@@ -1778,9 +1816,7 @@
                 mEffects[i]->release_l();
             }
 
-            if (type == EFFECT_FLAG_TYPE_AUXILIARY) {
-                delete[] effect->inBuffer();
-            } else {
+            if (type != EFFECT_FLAG_TYPE_AUXILIARY) {
                 if (i == size - 1 && i != 0) {
                     mEffects[i - 1]->setOutBuffer(mOutBuffer);
                     mEffects[i - 1]->configure();
@@ -1906,6 +1942,19 @@
     }
 }
 
+static void dumpInOutBuffer(
+        char *dump, size_t dumpSize, bool isInput, EffectBufferHalInterface *buffer) {
+    if (buffer == nullptr) {
+        snprintf(dump, dumpSize, "%p", buffer);
+    } else if (buffer->externalData() != nullptr) {
+        snprintf(dump, dumpSize, "%p -> %p",
+                isInput ? buffer->externalData() : buffer->audioBuffer()->raw,
+                isInput ? buffer->audioBuffer()->raw : buffer->externalData());
+    } else {
+        snprintf(dump, dumpSize, "%p", buffer->audioBuffer()->raw);
+    }
+}
+
 void AudioFlinger::EffectChain::dump(int fd, const Vector<String16>& args)
 {
     const size_t SIZE = 256;
@@ -1923,11 +1972,14 @@
             result.append("\tCould not lock mutex:\n");
         }
 
-        result.append("\tIn buffer   Out buffer   Active tracks:\n");
-        snprintf(buffer, SIZE, "\t%p  %p   %d\n",
-                mInBuffer,
-                mOutBuffer,
-                mActiveTrackCnt);
+        char inBufferStr[64], outBufferStr[64];
+        dumpInOutBuffer(inBufferStr, sizeof(inBufferStr), true, mInBuffer.get());
+        dumpInOutBuffer(outBufferStr, sizeof(outBufferStr), false, mOutBuffer.get());
+        snprintf(buffer, SIZE, "\t%-*s%-*s   Active tracks:\n",
+                (int)strlen(inBufferStr), "In buffer    ",
+                (int)strlen(outBufferStr), "Out buffer      ");
+        result.append(buffer);
+        snprintf(buffer, SIZE, "\t%s   %s   %d\n", inBufferStr, outBufferStr, mActiveTrackCnt);
         result.append(buffer);
         write(fd, result.string(), result.size());
 
diff --git a/services/audioflinger/Effects.h b/services/audioflinger/Effects.h
index 8fe0b96..0755c52 100644
--- a/services/audioflinger/Effects.h
+++ b/services/audioflinger/Effects.h
@@ -25,10 +25,11 @@
 // state changes or resource modifications. Always respect the following order
 // if multiple mutexes must be acquired to avoid cross deadlock:
 // AudioFlinger -> ThreadBase -> EffectChain -> EffectModule
+// AudioHandle -> ThreadBase -> EffectChain -> EffectModule
 // In addition, methods that lock the AudioPolicyService mutex (getOutputForEffect(),
-// startOutput()...) should never be called with AudioFlinger or Threadbase mutex locked
-// to avoid cross deadlock with other clients calling AudioPolicyService methods that in turn
-// call AudioFlinger thus locking the same mutexes in the reverse order.
+// startOutput(), getInputForAttr(), releaseInput()...) should never be called with AudioFlinger or
+// Threadbase mutex locked to avoid cross deadlock with other clients calling AudioPolicyService
+// methods that in turn call AudioFlinger thus locking the same mutexes in the reverse order.
 
 // The EffectModule class is a wrapper object controlling the effect engine implementation
 // in the effect library. It prevents concurrent calls to process() and command() functions
@@ -85,10 +86,14 @@
     bool isEnabled() const;
     bool isProcessEnabled() const;
 
-    void        setInBuffer(int16_t *buffer) { mConfig.inputCfg.buffer.s16 = buffer; }
-    int16_t     *inBuffer() { return mConfig.inputCfg.buffer.s16; }
-    void        setOutBuffer(int16_t *buffer) { mConfig.outputCfg.buffer.s16 = buffer; }
-    int16_t     *outBuffer() { return mConfig.outputCfg.buffer.s16; }
+    void        setInBuffer(const sp<EffectBufferHalInterface>& buffer);
+    int16_t     *inBuffer() const {
+        return mInBuffer != 0 ? reinterpret_cast<int16_t*>(mInBuffer->ptr()) : NULL;
+    }
+    void        setOutBuffer(const sp<EffectBufferHalInterface>& buffer);
+    int16_t     *outBuffer() const {
+        return mOutBuffer != 0 ? reinterpret_cast<int16_t*>(mOutBuffer->ptr()) : NULL;
+    }
     void        setChain(const wp<EffectChain>& chain) { mChain = chain; }
     void        setThread(const wp<ThreadBase>& thread) { mThread = thread; }
     const wp<ThreadBase>& thread() { return mThread; }
@@ -151,7 +156,9 @@
     const audio_session_t mSessionId; // audio session ID
     const effect_descriptor_t mDescriptor;// effect descriptor received from effect engine
     effect_config_t     mConfig;    // input and output audio configuration
-    effect_handle_t  mEffectInterface; // Effect module C API
+    sp<EffectHalInterface> mEffectInterface; // Effect module HAL
+    sp<EffectBufferHalInterface> mInBuffer;  // Buffers for interacting with HAL
+    sp<EffectBufferHalInterface> mOutBuffer;
     status_t            mStatus;    // initialization status
     effect_state        mState;     // current activation state
     Vector<EffectHandle *> mHandles;    // list of client handles
@@ -300,18 +307,17 @@
     void setMode_l(audio_mode_t mode);
     void setAudioSource_l(audio_source_t source);
 
-    void setInBuffer(int16_t *buffer, bool ownsBuffer = false) {
+    void setInBuffer(const sp<EffectBufferHalInterface>& buffer) {
         mInBuffer = buffer;
-        mOwnInBuffer = ownsBuffer;
     }
     int16_t *inBuffer() const {
-        return mInBuffer;
+        return mInBuffer != 0 ? reinterpret_cast<int16_t*>(mInBuffer->ptr()) : NULL;
     }
-    void setOutBuffer(int16_t *buffer) {
+    void setOutBuffer(const sp<EffectBufferHalInterface>& buffer) {
         mOutBuffer = buffer;
     }
     int16_t *outBuffer() const {
-        return mOutBuffer;
+        return mOutBuffer != 0 ? reinterpret_cast<int16_t*>(mOutBuffer->ptr()) : NULL;
     }
 
     void incTrackCnt() { android_atomic_inc(&mTrackCnt); }
@@ -393,8 +399,8 @@
     mutable  Mutex mLock;        // mutex protecting effect list
              Vector< sp<EffectModule> > mEffects; // list of effect modules
              audio_session_t mSessionId; // audio session ID
-             int16_t *mInBuffer;         // chain input buffer
-             int16_t *mOutBuffer;        // chain output buffer
+             sp<EffectBufferHalInterface> mInBuffer;  // chain input buffer
+             sp<EffectBufferHalInterface> mOutBuffer; // chain output buffer
 
     // 'volatile' here means these are accessed with atomic operations instead of mutex
     volatile int32_t mActiveTrackCnt;    // number of active tracks connected
@@ -402,7 +408,6 @@
 
              int32_t mTailBufferCount;   // current effect tail buffer count
              int32_t mMaxTailBuffers;    // maximum effect tail buffers
-             bool mOwnInBuffer;          // true if the chain owns its input buffer
              int mVolumeCtrlIdx;         // index of insert effect having control over volume
              uint32_t mLeftVolume;       // previous volume on left channel
              uint32_t mRightVolume;      // previous volume on right channel
diff --git a/services/audioflinger/FastMixer.cpp b/services/audioflinger/FastMixer.cpp
index 93f7ce5..103e7f8 100644
--- a/services/audioflinger/FastMixer.cpp
+++ b/services/audioflinger/FastMixer.cpp
@@ -37,9 +37,9 @@
 #include <cpustats/ThreadCpuUsage.h>
 #endif
 #endif
-#include <audio_utils/conversion.h>
+#include <audio_utils/mono_blend.h>
 #include <audio_utils/format.h>
-#include "AudioMixer.h"
+#include <media/AudioMixer.h>
 #include "FastMixer.h"
 
 namespace android {
diff --git a/services/audioflinger/FastMixerState.cpp b/services/audioflinger/FastMixerState.cpp
index ad471fb..36d8eef 100644
--- a/services/audioflinger/FastMixerState.cpp
+++ b/services/audioflinger/FastMixerState.cpp
@@ -14,6 +14,9 @@
  * limitations under the License.
  */
 
+#define LOG_TAG "FastMixerState"
+//#define LOG_NDEBUG 0
+
 #include <cutils/properties.h>
 #include "FastMixerState.h"
 
diff --git a/services/audioflinger/FastThread.cpp b/services/audioflinger/FastThread.cpp
index dca7bf9..caf7905 100644
--- a/services/audioflinger/FastThread.cpp
+++ b/services/audioflinger/FastThread.cpp
@@ -22,6 +22,7 @@
 #include "Configuration.h"
 #include <linux/futex.h>
 #include <sys/syscall.h>
+#include <cutils/atomic.h>
 #include <utils/Log.h>
 #include <utils/Trace.h>
 #include "FastThread.h"
diff --git a/services/audioflinger/FastThreadDumpState.cpp b/services/audioflinger/FastThreadDumpState.cpp
index 9df5c4c..964a725 100644
--- a/services/audioflinger/FastThreadDumpState.cpp
+++ b/services/audioflinger/FastThreadDumpState.cpp
@@ -14,6 +14,7 @@
  * limitations under the License.
  */
 
+#include <audio_utils/roundup.h>
 #include "FastThreadDumpState.h"
 
 namespace android {
diff --git a/services/audioflinger/MmapTracks.h b/services/audioflinger/MmapTracks.h
new file mode 100644
index 0000000..e4fe8ac
--- /dev/null
+++ b/services/audioflinger/MmapTracks.h
@@ -0,0 +1,60 @@
+/*
+**
+** Copyright 2017, The Android Open Source Project
+**
+** Licensed under the Apache License, Version 2.0 (the "License");
+** you may not use this file except in compliance with the License.
+** You may obtain a copy of the License at
+**
+**     http://www.apache.org/licenses/LICENSE-2.0
+**
+** Unless required by applicable law or agreed to in writing, software
+** distributed under the License is distributed on an "AS IS" BASIS,
+** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+** See the License for the specific language governing permissions and
+** limitations under the License.
+*/
+
+#ifndef INCLUDING_FROM_AUDIOFLINGER_H
+    #error This header file should only be included from AudioFlinger.h
+#endif
+
+// playback track
+class MmapTrack : public TrackBase {
+public:
+                MmapTrack(ThreadBase *thread,
+                            uint32_t sampleRate,
+                            audio_format_t format,
+                            audio_channel_mask_t channelMask,
+                            audio_session_t sessionId,
+                            uid_t uid,
+                            audio_port_handle_t portId = AUDIO_PORT_HANDLE_NONE);
+    virtual             ~MmapTrack();
+
+                        // TrackBase virtual
+    virtual status_t    initCheck() const;
+    virtual status_t    start(AudioSystem::sync_event_t event,
+                              audio_session_t triggerSession);
+    virtual void        stop();
+    virtual bool        isFastTrack() const { return false; }
+
+     static void        appendDumpHeader(String8& result);
+            void        dump(char* buffer, size_t size);
+
+protected:
+    friend class MmapThread;
+
+                MmapTrack(const MmapTrack&);
+                MmapTrack& operator = (const MmapTrack&);
+
+    // AudioBufferProvider interface
+    virtual status_t getNextBuffer(AudioBufferProvider::Buffer* buffer);
+    // releaseBuffer() not overridden
+
+    // ExtendedAudioBufferProvider interface
+    virtual size_t framesReady() const;
+    virtual int64_t framesReleased() const;
+    virtual void onTimestamp(const ExtendedTimestamp &timestamp);
+
+};  // end of Track
+
diff --git a/services/audioflinger/PatchPanel.cpp b/services/audioflinger/PatchPanel.cpp
index bee17fd..d7c0728 100644
--- a/services/audioflinger/PatchPanel.cpp
+++ b/services/audioflinger/PatchPanel.cpp
@@ -202,9 +202,9 @@
                     if (hwModule != AUDIO_MODULE_HANDLE_NONE) {
                         ssize_t index = audioflinger->mAudioHwDevs.indexOfKey(hwModule);
                         if (index >= 0) {
-                            audio_hw_device_t *hwDevice =
+                            sp<DeviceHalInterface> hwDevice =
                                     audioflinger->mAudioHwDevs.valueAt(index)->hwDevice();
-                            hwDevice->release_audio_patch(hwDevice, halHandle);
+                            hwDevice->releaseAudioPatch(halHandle);
                         }
                     }
                 }
@@ -247,11 +247,11 @@
             // - special patch request with 2 sources (reuse one existing output mix) OR
             // - Device to device AND
             //    - source HW module != destination HW module OR
-            //    - audio HAL version < 3.0
+            //    - audio HAL does not support audio patches creation
             if ((patch->num_sources == 2) ||
                 ((patch->sinks[0].type == AUDIO_PORT_TYPE_DEVICE) &&
                  ((patch->sinks[0].ext.device.hw_module != srcModule) ||
-                  (audioHwDevice->version() < AUDIO_DEVICE_API_VERSION_3_0)))) {
+                  !audioHwDevice->supportsAudioPatches()))) {
                 if (patch->num_sources == 2) {
                     if (patch->sources[1].type != AUDIO_PORT_TYPE_MIX ||
                             (patch->num_sinks != 0 && patch->sinks[0].ext.device.hw_module !=
@@ -274,13 +274,14 @@
                     audio_devices_t device = patch->sinks[0].ext.device.type;
                     String8 address = String8(patch->sinks[0].ext.device.address);
                     audio_io_handle_t output = AUDIO_IO_HANDLE_NONE;
-                    newPatch->mPlaybackThread = audioflinger->openOutput_l(
-                                                             patch->sinks[0].ext.device.hw_module,
-                                                             &output,
-                                                             &config,
-                                                             device,
-                                                             address,
-                                                             AUDIO_OUTPUT_FLAG_NONE);
+                    sp<ThreadBase> thread = audioflinger->openOutput_l(
+                                                            patch->sinks[0].ext.device.hw_module,
+                                                            &output,
+                                                            &config,
+                                                            device,
+                                                            address,
+                                                            AUDIO_OUTPUT_FLAG_NONE);
+                    newPatch->mPlaybackThread = (PlaybackThread *)thread.get();
                     ALOGV("audioflinger->openOutput_l() returned %p",
                                           newPatch->mPlaybackThread.get());
                     if (newPatch->mPlaybackThread == 0) {
@@ -310,13 +311,14 @@
                     config.format = newPatch->mPlaybackThread->format();
                 }
                 audio_io_handle_t input = AUDIO_IO_HANDLE_NONE;
-                newPatch->mRecordThread = audioflinger->openInput_l(srcModule,
+                sp<ThreadBase> thread = audioflinger->openInput_l(srcModule,
                                                                     &input,
                                                                     &config,
                                                                     device,
                                                                     address,
                                                                     AUDIO_SOURCE_MIC,
                                                                     AUDIO_INPUT_FLAG_NONE);
+                newPatch->mRecordThread = (RecordThread *)thread.get();
                 ALOGV("audioflinger->openInput_l() returned %p inChannelMask %08x",
                       newPatch->mRecordThread.get(), config.channel_mask);
                 if (newPatch->mRecordThread == 0) {
@@ -332,25 +334,23 @@
                     sp<ThreadBase> thread = audioflinger->checkRecordThread_l(
                                                               patch->sinks[0].ext.mix.handle);
                     if (thread == 0) {
-                        ALOGW("createAudioPatch() bad capture I/O handle %d",
-                                                              patch->sinks[0].ext.mix.handle);
-                        status = BAD_VALUE;
-                        goto exit;
+                        thread = audioflinger->checkMmapThread_l(patch->sinks[0].ext.mix.handle);
+                        if (thread == 0) {
+                            ALOGW("createAudioPatch() bad capture I/O handle %d",
+                                                                  patch->sinks[0].ext.mix.handle);
+                            status = BAD_VALUE;
+                            goto exit;
+                        }
                     }
                     status = thread->sendCreateAudioPatchConfigEvent(patch, &halHandle);
                 } else {
-                    if (audioHwDevice->version() < AUDIO_DEVICE_API_VERSION_3_0) {
-                        status = INVALID_OPERATION;
-                        goto exit;
-                    }
-
-                    audio_hw_device_t *hwDevice = audioHwDevice->hwDevice();
-                    status = hwDevice->create_audio_patch(hwDevice,
-                                                           patch->num_sources,
-                                                           patch->sources,
-                                                           patch->num_sinks,
-                                                           patch->sinks,
-                                                           &halHandle);
+                    sp<DeviceHalInterface> hwDevice = audioHwDevice->hwDevice();
+                    status = hwDevice->createAudioPatch(patch->num_sources,
+                                                        patch->sources,
+                                                        patch->num_sinks,
+                                                        patch->sinks,
+                                                        &halHandle);
+                    if (status == INVALID_OPERATION) goto exit;
                 }
             }
         } break;
@@ -381,14 +381,17 @@
             sp<ThreadBase> thread =
                             audioflinger->checkPlaybackThread_l(patch->sources[0].ext.mix.handle);
             if (thread == 0) {
-                ALOGW("createAudioPatch() bad playback I/O handle %d",
-                          patch->sources[0].ext.mix.handle);
-                status = BAD_VALUE;
-                goto exit;
+                thread = audioflinger->checkMmapThread_l(patch->sources[0].ext.mix.handle);
+                if (thread == 0) {
+                    ALOGW("createAudioPatch() bad playback I/O handle %d",
+                              patch->sources[0].ext.mix.handle);
+                    status = BAD_VALUE;
+                    goto exit;
+                }
             }
             if (thread == audioflinger->primaryPlaybackThread_l()) {
                 AudioParameter param = AudioParameter();
-                param.addInt(String8(AUDIO_PARAMETER_STREAM_ROUTING), (int)type);
+                param.addInt(String8(AudioParameter::keyRouting), (int)type);
 
                 audioflinger->broacastParametersToRecordThreads_l(param.toString());
             }
@@ -611,20 +614,19 @@
                 sp<ThreadBase> thread = audioflinger->checkRecordThread_l(
                                                                 patch->sinks[0].ext.mix.handle);
                 if (thread == 0) {
-                    ALOGW("releaseAudioPatch() bad capture I/O handle %d",
-                                                              patch->sinks[0].ext.mix.handle);
-                    status = BAD_VALUE;
-                    break;
+                    thread = audioflinger->checkMmapThread_l(patch->sinks[0].ext.mix.handle);
+                    if (thread == 0) {
+                        ALOGW("releaseAudioPatch() bad capture I/O handle %d",
+                                                                  patch->sinks[0].ext.mix.handle);
+                        status = BAD_VALUE;
+                        break;
+                    }
                 }
                 status = thread->sendReleaseAudioPatchConfigEvent(removedPatch->mHalHandle);
             } else {
                 AudioHwDevice *audioHwDevice = audioflinger->mAudioHwDevs.valueAt(index);
-                if (audioHwDevice->version() < AUDIO_DEVICE_API_VERSION_3_0) {
-                    status = INVALID_OPERATION;
-                    break;
-                }
-                audio_hw_device_t *hwDevice = audioHwDevice->hwDevice();
-                status = hwDevice->release_audio_patch(hwDevice, removedPatch->mHalHandle);
+                sp<DeviceHalInterface> hwDevice = audioHwDevice->hwDevice();
+                status = hwDevice->releaseAudioPatch(removedPatch->mHalHandle);
             }
         } break;
         case AUDIO_PORT_TYPE_MIX: {
@@ -638,10 +640,13 @@
             sp<ThreadBase> thread =
                             audioflinger->checkPlaybackThread_l(patch->sources[0].ext.mix.handle);
             if (thread == 0) {
-                ALOGW("releaseAudioPatch() bad playback I/O handle %d",
-                                                              patch->sources[0].ext.mix.handle);
-                status = BAD_VALUE;
-                break;
+                thread = audioflinger->checkMmapThread_l(patch->sources[0].ext.mix.handle);
+                if (thread == 0) {
+                    ALOGW("releaseAudioPatch() bad playback I/O handle %d",
+                                                                  patch->sources[0].ext.mix.handle);
+                    status = BAD_VALUE;
+                    break;
+                }
             }
             status = thread->sendReleaseAudioPatchConfigEvent(removedPatch->mHalHandle);
         } break;
@@ -687,13 +692,7 @@
     }
 
     AudioHwDevice *audioHwDevice = audioflinger->mAudioHwDevs.valueAt(index);
-    if (audioHwDevice->version() >= AUDIO_DEVICE_API_VERSION_3_0) {
-        audio_hw_device_t *hwDevice = audioHwDevice->hwDevice();
-        return hwDevice->set_audio_port_config(hwDevice, config);
-    } else {
-        return INVALID_OPERATION;
-    }
-    return NO_ERROR;
+    return audioHwDevice->hwDevice()->setAudioPortConfig(config);
 }
 
 } // namespace android
diff --git a/services/audioflinger/PlaybackTracks.h b/services/audioflinger/PlaybackTracks.h
index 5601bde..f84ba08 100644
--- a/services/audioflinger/PlaybackTracks.h
+++ b/services/audioflinger/PlaybackTracks.h
@@ -32,9 +32,10 @@
                                 void *buffer,
                                 const sp<IMemory>& sharedBuffer,
                                 audio_session_t sessionId,
-                                int uid,
+                                uid_t uid,
                                 audio_output_flags_t flags,
-                                track_type type);
+                                track_type type,
+                                audio_port_handle_t portId = AUDIO_PORT_HANDLE_NONE);
     virtual             ~Track();
     virtual status_t    initCheck() const;
 
@@ -58,6 +59,10 @@
             bool        isOffloaded() const
                                 { return (mFlags & AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD) != 0; }
             bool        isDirect() const { return (mFlags & AUDIO_OUTPUT_FLAG_DIRECT) != 0; }
+            bool        isOffloadedOrDirect() const { return (mFlags
+                            & (AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD
+                                    | AUDIO_OUTPUT_FLAG_DIRECT)) != 0; }
+
             status_t    setParameters(const String8& keyValuePairs);
             status_t    attachAuxEffect(int EffectId);
             void        setAuxBuffer(int EffectId, int32_t *buffer);
@@ -75,6 +80,13 @@
 
     virtual bool        isFastTrack() const { return (mFlags & AUDIO_OUTPUT_FLAG_FAST) != 0; }
 
+// implement volume handling.
+   VolumeShaper::Status applyVolumeShaper(
+                                const sp<VolumeShaper::Configuration>& configuration,
+                                const sp<VolumeShaper::Operation>& operation);
+sp<VolumeShaper::State> getVolumeShaperState(int id);
+    sp<VolumeHandler>   getVolumeHandler() { return mVolumeHandler; }
+
 protected:
     // for numerous
     friend class PlaybackThread;
@@ -117,10 +129,9 @@
 
 public:
     void triggerEvents(AudioSystem::sync_event_t type);
-    void invalidate();
+    virtual void invalidate();
     void disable();
 
-    bool isInvalid() const { return mIsInvalid; }
     int fastIndex() const { return mFastIndex; }
 
 protected:
@@ -152,6 +163,8 @@
 
     ExtendedTimestamp  mSinkTimestamp;
 
+    sp<VolumeHandler>  mVolumeHandler; // handles multiple VolumeShaper configs and operations
+
 private:
     // The following fields are only for fast tracks, and should be in a subclass
     int                 mFastIndex; // index within FastMixerState::mFastTracks[];
@@ -165,8 +178,7 @@
     volatile float      mCachedVolume;  // combined master volume and stream type volume;
                                         // 'volatile' means accessed without lock or
                                         // barrier, but is read/written atomically
-    bool                mIsInvalid; // non-resettable latch, set by invalidate()
-    AudioTrackServerProxy*  mAudioTrackServerProxy;
+    sp<AudioTrackServerProxy>  mAudioTrackServerProxy;
     bool                mResumeToStopping; // track was paused in stopping state.
     bool                mFlushHwPending; // track requests for thread flush
     audio_output_flags_t mFlags;
@@ -188,7 +200,7 @@
                                 audio_format_t format,
                                 audio_channel_mask_t channelMask,
                                 size_t frameCount,
-                                int uid);
+                                uid_t uid);
     virtual             ~OutputTrack();
 
     virtual status_t    start(AudioSystem::sync_event_t event =
@@ -214,8 +226,8 @@
     Vector < Buffer* >          mBufferQueue;
     AudioBufferProvider::Buffer mOutBuffer;
     bool                        mActive;
-    DuplicatingThread* const mSourceThread; // for waitTimeMs() in write()
-    AudioTrackClientProxy*      mClientProxy;
+    DuplicatingThread* const    mSourceThread; // for waitTimeMs() in write()
+    sp<AudioTrackClientProxy>   mClientProxy;
 };  // end of OutputTrack
 
 // playback track, used by PatchPanel
diff --git a/services/audioflinger/RecordTracks.h b/services/audioflinger/RecordTracks.h
index 123e033..72ebc93 100644
--- a/services/audioflinger/RecordTracks.h
+++ b/services/audioflinger/RecordTracks.h
@@ -30,9 +30,10 @@
                                 size_t frameCount,
                                 void *buffer,
                                 audio_session_t sessionId,
-                                int uid,
+                                uid_t uid,
                                 audio_input_flags_t flags,
-                                track_type type);
+                                track_type type,
+                                audio_port_handle_t portId = AUDIO_PORT_HANDLE_NONE);
     virtual             ~RecordTrack();
     virtual status_t    initCheck() const;
 
@@ -41,7 +42,7 @@
 
             void        destroy();
 
-            void        invalidate();
+    virtual void        invalidate();
             // clear the buffer overflow flag
             void        clearOverflow() { mOverflow = false; }
             // set the buffer overflow flag and return previous value
diff --git a/services/audioflinger/SpdifStreamOut.cpp b/services/audioflinger/SpdifStreamOut.cpp
index 004a068..a44ab2a 100644
--- a/services/audioflinger/SpdifStreamOut.cpp
+++ b/services/audioflinger/SpdifStreamOut.cpp
@@ -17,13 +17,12 @@
 
 #define LOG_TAG "AudioFlinger"
 //#define LOG_NDEBUG 0
-#include <hardware/audio.h>
+#include <system/audio.h>
 #include <utils/Log.h>
 
 #include <audio_utils/spdif/SPDIFEncoder.h>
 
 #include "AudioHwDevice.h"
-#include "AudioStreamOut.h"
 #include "SpdifStreamOut.h"
 
 namespace android {
diff --git a/services/audioflinger/SpdifStreamOut.h b/services/audioflinger/SpdifStreamOut.h
index c870250..fc9bb6e 100644
--- a/services/audioflinger/SpdifStreamOut.h
+++ b/services/audioflinger/SpdifStreamOut.h
@@ -23,9 +23,7 @@
 
 #include <system/audio.h>
 
-#include "AudioHwDevice.h"
 #include "AudioStreamOut.h"
-#include "SpdifStreamOut.h"
 
 #include <audio_utils/spdif/SPDIFEncoder.h>
 
diff --git a/services/audioflinger/Threads.cpp b/services/audioflinger/Threads.cpp
index 2a29b1b..54e07c0 100644
--- a/services/audioflinger/Threads.cpp
+++ b/services/audioflinger/Threads.cpp
@@ -29,17 +29,20 @@
 #include <cutils/properties.h>
 #include <media/AudioParameter.h>
 #include <media/AudioResamplerPublic.h>
+#include <media/RecordBufferConverter.h>
+#include <media/TypeConverter.h>
 #include <utils/Log.h>
 #include <utils/Trace.h>
 
 #include <private/media/AudioTrackShared.h>
-#include <hardware/audio.h>
-#include <audio_effects/effect_ns.h>
-#include <audio_effects/effect_aec.h>
-#include <audio_utils/conversion.h>
+#include <private/android_filesystem_config.h>
+#include <audio_utils/mono_blend.h>
 #include <audio_utils/primitives.h>
 #include <audio_utils/format.h>
 #include <audio_utils/minifloat.h>
+#include <system/audio_effects/effect_ns.h>
+#include <system/audio_effects/effect_aec.h>
+#include <system/audio.h>
 
 // NBAIO implementations
 #include <media/nbaio/AudioStreamInSource.h>
@@ -54,8 +57,6 @@
 #include <powermanager/PowerManager.h>
 
 #include "AudioFlinger.h"
-#include "AudioMixer.h"
-#include "BufferProviders.h"
 #include "FastMixer.h"
 #include "FastCapture.h"
 #include "ServiceUtilities.h"
@@ -73,6 +74,9 @@
 
 #include "AutoPark.h"
 
+#include <pthread.h>
+#include "TypedLogger.h"
+
 // ----------------------------------------------------------------------------
 
 // Note: the following macro is used for extremely verbose logging message.  In
@@ -143,6 +147,12 @@
 // Direct output thread minimum sleep time in idle or active(underrun) state
 static const nsecs_t kDirectMinSleepTimeUs = 10000;
 
+// The universal constant for ubiquitous 20ms value. The value of 20ms seems to provide a good
+// balance between power consumption and latency, and allows threads to be scheduled reliably
+// by the CFS scheduler.
+// FIXME Express other hardcoded references to 20ms with references to this constant and move
+// it appropriately.
+#define FMS_20 20
 
 // Whether to use fast mixer
 static const enum {
@@ -442,168 +452,28 @@
     }
 }
 
-String8 devicesToString(audio_devices_t devices)
+std::string devicesToString(audio_devices_t devices)
 {
-    static const struct mapping {
-        audio_devices_t mDevices;
-        const char *    mString;
-    } mappingsOut[] = {
-        {AUDIO_DEVICE_OUT_EARPIECE,         "EARPIECE"},
-        {AUDIO_DEVICE_OUT_SPEAKER,          "SPEAKER"},
-        {AUDIO_DEVICE_OUT_WIRED_HEADSET,    "WIRED_HEADSET"},
-        {AUDIO_DEVICE_OUT_WIRED_HEADPHONE,  "WIRED_HEADPHONE"},
-        {AUDIO_DEVICE_OUT_BLUETOOTH_SCO,    "BLUETOOTH_SCO"},
-        {AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET,    "BLUETOOTH_SCO_HEADSET"},
-        {AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT,     "BLUETOOTH_SCO_CARKIT"},
-        {AUDIO_DEVICE_OUT_BLUETOOTH_A2DP,           "BLUETOOTH_A2DP"},
-        {AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES,"BLUETOOTH_A2DP_HEADPHONES"},
-        {AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER,   "BLUETOOTH_A2DP_SPEAKER"},
-        {AUDIO_DEVICE_OUT_AUX_DIGITAL,      "AUX_DIGITAL"},
-        {AUDIO_DEVICE_OUT_HDMI,             "HDMI"},
-        {AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET,"ANLG_DOCK_HEADSET"},
-        {AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET,"DGTL_DOCK_HEADSET"},
-        {AUDIO_DEVICE_OUT_USB_ACCESSORY,    "USB_ACCESSORY"},
-        {AUDIO_DEVICE_OUT_USB_DEVICE,       "USB_DEVICE"},
-        {AUDIO_DEVICE_OUT_TELEPHONY_TX,     "TELEPHONY_TX"},
-        {AUDIO_DEVICE_OUT_LINE,             "LINE"},
-        {AUDIO_DEVICE_OUT_HDMI_ARC,         "HDMI_ARC"},
-        {AUDIO_DEVICE_OUT_SPDIF,            "SPDIF"},
-        {AUDIO_DEVICE_OUT_FM,               "FM"},
-        {AUDIO_DEVICE_OUT_AUX_LINE,         "AUX_LINE"},
-        {AUDIO_DEVICE_OUT_SPEAKER_SAFE,     "SPEAKER_SAFE"},
-        {AUDIO_DEVICE_OUT_IP,               "IP"},
-        {AUDIO_DEVICE_OUT_BUS,              "BUS"},
-        {AUDIO_DEVICE_NONE,                 "NONE"},       // must be last
-    }, mappingsIn[] = {
-        {AUDIO_DEVICE_IN_COMMUNICATION,     "COMMUNICATION"},
-        {AUDIO_DEVICE_IN_AMBIENT,           "AMBIENT"},
-        {AUDIO_DEVICE_IN_BUILTIN_MIC,       "BUILTIN_MIC"},
-        {AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET, "BLUETOOTH_SCO_HEADSET"},
-        {AUDIO_DEVICE_IN_WIRED_HEADSET,     "WIRED_HEADSET"},
-        {AUDIO_DEVICE_IN_AUX_DIGITAL,       "AUX_DIGITAL"},
-        {AUDIO_DEVICE_IN_VOICE_CALL,        "VOICE_CALL"},
-        {AUDIO_DEVICE_IN_TELEPHONY_RX,      "TELEPHONY_RX"},
-        {AUDIO_DEVICE_IN_BACK_MIC,          "BACK_MIC"},
-        {AUDIO_DEVICE_IN_REMOTE_SUBMIX,     "REMOTE_SUBMIX"},
-        {AUDIO_DEVICE_IN_ANLG_DOCK_HEADSET, "ANLG_DOCK_HEADSET"},
-        {AUDIO_DEVICE_IN_DGTL_DOCK_HEADSET, "DGTL_DOCK_HEADSET"},
-        {AUDIO_DEVICE_IN_USB_ACCESSORY,     "USB_ACCESSORY"},
-        {AUDIO_DEVICE_IN_USB_DEVICE,        "USB_DEVICE"},
-        {AUDIO_DEVICE_IN_FM_TUNER,          "FM_TUNER"},
-        {AUDIO_DEVICE_IN_TV_TUNER,          "TV_TUNER"},
-        {AUDIO_DEVICE_IN_LINE,              "LINE"},
-        {AUDIO_DEVICE_IN_SPDIF,             "SPDIF"},
-        {AUDIO_DEVICE_IN_BLUETOOTH_A2DP,    "BLUETOOTH_A2DP"},
-        {AUDIO_DEVICE_IN_LOOPBACK,          "LOOPBACK"},
-        {AUDIO_DEVICE_IN_IP,                "IP"},
-        {AUDIO_DEVICE_IN_BUS,               "BUS"},
-        {AUDIO_DEVICE_NONE,                 "NONE"},        // must be last
-    };
-    String8 result;
-    audio_devices_t allDevices = AUDIO_DEVICE_NONE;
-    const mapping *entry;
+    std::string result;
     if (devices & AUDIO_DEVICE_BIT_IN) {
-        devices &= ~AUDIO_DEVICE_BIT_IN;
-        entry = mappingsIn;
+        InputDeviceConverter::maskToString(devices, result);
     } else {
-        entry = mappingsOut;
-    }
-    for ( ; entry->mDevices != AUDIO_DEVICE_NONE; entry++) {
-        allDevices = (audio_devices_t) (allDevices | entry->mDevices);
-        if (devices & entry->mDevices) {
-            if (!result.isEmpty()) {
-                result.append("|");
-            }
-            result.append(entry->mString);
-        }
-    }
-    if (devices & ~allDevices) {
-        if (!result.isEmpty()) {
-            result.append("|");
-        }
-        result.appendFormat("0x%X", devices & ~allDevices);
-    }
-    if (result.isEmpty()) {
-        result.append(entry->mString);
+        OutputDeviceConverter::maskToString(devices, result);
     }
     return result;
 }
 
-String8 inputFlagsToString(audio_input_flags_t flags)
+std::string inputFlagsToString(audio_input_flags_t flags)
 {
-    static const struct mapping {
-        audio_input_flags_t     mFlag;
-        const char *            mString;
-    } mappings[] = {
-        {AUDIO_INPUT_FLAG_FAST,             "FAST"},
-        {AUDIO_INPUT_FLAG_HW_HOTWORD,       "HW_HOTWORD"},
-        {AUDIO_INPUT_FLAG_RAW,              "RAW"},
-        {AUDIO_INPUT_FLAG_SYNC,             "SYNC"},
-        {AUDIO_INPUT_FLAG_NONE,             "NONE"},        // must be last
-    };
-    String8 result;
-    audio_input_flags_t allFlags = AUDIO_INPUT_FLAG_NONE;
-    const mapping *entry;
-    for (entry = mappings; entry->mFlag != AUDIO_INPUT_FLAG_NONE; entry++) {
-        allFlags = (audio_input_flags_t) (allFlags | entry->mFlag);
-        if (flags & entry->mFlag) {
-            if (!result.isEmpty()) {
-                result.append("|");
-            }
-            result.append(entry->mString);
-        }
-    }
-    if (flags & ~allFlags) {
-        if (!result.isEmpty()) {
-            result.append("|");
-        }
-        result.appendFormat("0x%X", flags & ~allFlags);
-    }
-    if (result.isEmpty()) {
-        result.append(entry->mString);
-    }
+    std::string result;
+    InputFlagConverter::maskToString(flags, result);
     return result;
 }
 
-String8 outputFlagsToString(audio_output_flags_t flags)
+std::string outputFlagsToString(audio_output_flags_t flags)
 {
-    static const struct mapping {
-        audio_output_flags_t    mFlag;
-        const char *            mString;
-    } mappings[] = {
-        {AUDIO_OUTPUT_FLAG_DIRECT,          "DIRECT"},
-        {AUDIO_OUTPUT_FLAG_PRIMARY,         "PRIMARY"},
-        {AUDIO_OUTPUT_FLAG_FAST,            "FAST"},
-        {AUDIO_OUTPUT_FLAG_DEEP_BUFFER,     "DEEP_BUFFER"},
-        {AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD,"COMPRESS_OFFLOAD"},
-        {AUDIO_OUTPUT_FLAG_NON_BLOCKING,    "NON_BLOCKING"},
-        {AUDIO_OUTPUT_FLAG_HW_AV_SYNC,      "HW_AV_SYNC"},
-        {AUDIO_OUTPUT_FLAG_RAW,             "RAW"},
-        {AUDIO_OUTPUT_FLAG_SYNC,            "SYNC"},
-        {AUDIO_OUTPUT_FLAG_IEC958_NONAUDIO, "IEC958_NONAUDIO"},
-        {AUDIO_OUTPUT_FLAG_NONE,            "NONE"},        // must be last
-    };
-    String8 result;
-    audio_output_flags_t allFlags = AUDIO_OUTPUT_FLAG_NONE;
-    const mapping *entry;
-    for (entry = mappings; entry->mFlag != AUDIO_OUTPUT_FLAG_NONE; entry++) {
-        allFlags = (audio_output_flags_t) (allFlags | entry->mFlag);
-        if (flags & entry->mFlag) {
-            if (!result.isEmpty()) {
-                result.append("|");
-            }
-            result.append(entry->mString);
-        }
-    }
-    if (flags & ~allFlags) {
-        if (!result.isEmpty()) {
-            result.append("|");
-        }
-        result.appendFormat("0x%X", flags & ~allFlags);
-    }
-    if (result.isEmpty()) {
-        result.append(entry->mString);
-    }
+    std::string result;
+    OutputFlagConverter::maskToString(flags, result);
     return result;
 }
 
@@ -641,7 +511,7 @@
         // mName will be set by concrete (non-virtual) subclass
         mDeathRecipient(new PMDeathRecipient(this)),
         mSystemReady(systemReady),
-        mNotifiedBatteryStart(false)
+        mSignalPending(false)
 {
     memset(&mPatch, 0, sizeof(struct audio_patch));
 }
@@ -744,16 +614,17 @@
     sendConfigEvent_l(configEvent);
 }
 
-void AudioFlinger::ThreadBase::sendPrioConfigEvent(pid_t pid, pid_t tid, int32_t prio)
+void AudioFlinger::ThreadBase::sendPrioConfigEvent(pid_t pid, pid_t tid, int32_t prio, bool forApp)
 {
     Mutex::Autolock _l(mLock);
-    sendPrioConfigEvent_l(pid, tid, prio);
+    sendPrioConfigEvent_l(pid, tid, prio, forApp);
 }
 
 // sendPrioConfigEvent_l() must be called with ThreadBase::mLock held
-void AudioFlinger::ThreadBase::sendPrioConfigEvent_l(pid_t pid, pid_t tid, int32_t prio)
+void AudioFlinger::ThreadBase::sendPrioConfigEvent_l(
+        pid_t pid, pid_t tid, int32_t prio, bool forApp)
 {
-    sp<ConfigEvent> configEvent = (ConfigEvent *)new PrioConfigEvent(pid, tid, prio);
+    sp<ConfigEvent> configEvent = (ConfigEvent *)new PrioConfigEvent(pid, tid, prio, forApp);
     sendConfigEvent_l(configEvent);
 }
 
@@ -763,12 +634,12 @@
     sp<ConfigEvent> configEvent;
     AudioParameter param(keyValuePair);
     int value;
-    if (param.getInt(String8(AUDIO_PARAMETER_MONO_OUTPUT), value) == NO_ERROR) {
+    if (param.getInt(String8(AudioParameter::keyMonoOutput), value) == NO_ERROR) {
         setMasterMono_l(value != 0);
         if (param.size() == 1) {
             return NO_ERROR; // should be a solo parameter - we don't pass down
         }
-        param.remove(String8(AUDIO_PARAMETER_MONO_OUTPUT));
+        param.remove(String8(AudioParameter::keyMonoOutput));
         configEvent = new SetParameterConfigEvent(param.toString());
     } else {
         configEvent = new SetParameterConfigEvent(keyValuePair);
@@ -813,7 +684,7 @@
         case CFG_EVENT_PRIO: {
             PrioConfigEventData *data = (PrioConfigEventData *)event->mData.get();
             // FIXME Need to understand why this has to be done asynchronously
-            int err = requestPriority(data->mPid, data->mTid, data->mPrio,
+            int err = requestPriority(data->mPid, data->mTid, data->mPrio, data->mForApp,
                     true /*asynchronous*/);
             if (err != 0) {
                 ALOGW("Policy SCHED_FIFO priority %d is unavailable for pid %d tid %d; error %d",
@@ -937,12 +808,12 @@
     dprintf(fd, "  Standby: %s\n", mStandby ? "yes" : "no");
     dprintf(fd, "  Sample rate: %u Hz\n", mSampleRate);
     dprintf(fd, "  HAL frame count: %zu\n", mFrameCount);
-    dprintf(fd, "  HAL format: 0x%x (%s)\n", mHALFormat, formatToString(mHALFormat));
+    dprintf(fd, "  HAL format: 0x%x (%s)\n", mHALFormat, formatToString(mHALFormat).c_str());
     dprintf(fd, "  HAL buffer size: %zu bytes\n", mBufferSize);
     dprintf(fd, "  Channel count: %u\n", mChannelCount);
     dprintf(fd, "  Channel mask: 0x%08x (%s)\n", mChannelMask,
             channelMaskToString(mChannelMask, mType != RECORD).string());
-    dprintf(fd, "  Processing format: 0x%x (%s)\n", mFormat, formatToString(mFormat));
+    dprintf(fd, "  Processing format: 0x%x (%s)\n", mFormat, formatToString(mFormat).c_str());
     dprintf(fd, "  Processing frame size: %zu bytes\n", mFrameSize);
     dprintf(fd, "  Pending config events:");
     size_t numConfig = mConfigEvents.size();
@@ -955,8 +826,8 @@
     } else {
         dprintf(fd, " none\n");
     }
-    dprintf(fd, "  Output device: %#x (%s)\n", mOutDevice, devicesToString(mOutDevice).string());
-    dprintf(fd, "  Input device: %#x (%s)\n", mInDevice, devicesToString(mInDevice).string());
+    dprintf(fd, "  Output device: %#x (%s)\n", mOutDevice, devicesToString(mOutDevice).c_str());
+    dprintf(fd, "  Input device: %#x (%s)\n", mInDevice, devicesToString(mInDevice).c_str());
     dprintf(fd, "  Audio source: %d (%s)\n", mAudioSource, sourceToString(mAudioSource));
 
     if (locked) {
@@ -982,10 +853,10 @@
     }
 }
 
-void AudioFlinger::ThreadBase::acquireWakeLock(int uid)
+void AudioFlinger::ThreadBase::acquireWakeLock()
 {
     Mutex::Autolock _l(mLock);
-    acquireWakeLock_l(uid);
+    acquireWakeLock_l();
 }
 
 String16 AudioFlinger::ThreadBase::getWakeLockTag()
@@ -1001,42 +872,31 @@
         return String16("AudioIn");
     case OFFLOAD:
         return String16("AudioOffload");
+    case MMAP:
+        return String16("Mmap");
     default:
         ALOG_ASSERT(false);
         return String16("AudioUnknown");
     }
 }
 
-void AudioFlinger::ThreadBase::acquireWakeLock_l(int uid)
+void AudioFlinger::ThreadBase::acquireWakeLock_l()
 {
     getPowerManager_l();
     if (mPowerManager != 0) {
         sp<IBinder> binder = new BBinder();
-        status_t status;
-        if (uid >= 0) {
-            status = mPowerManager->acquireWakeLockWithUid(POWERMANAGER_PARTIAL_WAKE_LOCK,
-                    binder,
-                    getWakeLockTag(),
-                    String16("audioserver"),
-                    uid,
-                    true /* FIXME force oneway contrary to .aidl */);
-        } else {
-            status = mPowerManager->acquireWakeLock(POWERMANAGER_PARTIAL_WAKE_LOCK,
+        // Uses AID_AUDIOSERVER for wakelock.  updateWakeLockUids_l() updates with client uids.
+        status_t status = mPowerManager->acquireWakeLock(POWERMANAGER_PARTIAL_WAKE_LOCK,
                     binder,
                     getWakeLockTag(),
                     String16("audioserver"),
                     true /* FIXME force oneway contrary to .aidl */);
-        }
         if (status == NO_ERROR) {
             mWakeLockToken = binder;
         }
         ALOGV("acquireWakeLock_l() %s status %d", mThreadName, status);
     }
 
-    if (!mNotifiedBatteryStart) {
-        BatteryNotifier::getInstance().noteStartAudio();
-        mNotifiedBatteryStart = true;
-    }
     gBoottime.acquire(mWakeLockToken);
     mTimestamp.mTimebaseOffset[ExtendedTimestamp::TIMEBASE_BOOTTIME] =
             gBoottime.getBoottimeOffset();
@@ -1059,16 +919,6 @@
         }
         mWakeLockToken.clear();
     }
-
-    if (mNotifiedBatteryStart) {
-        BatteryNotifier::getInstance().noteStopAudio();
-        mNotifiedBatteryStart = false;
-    }
-}
-
-void AudioFlinger::ThreadBase::updateWakeLockUids(const SortedVector<int> &uids) {
-    Mutex::Autolock _l(mLock);
-    updateWakeLockUids_l(uids);
 }
 
 void AudioFlinger::ThreadBase::getPowerManager_l() {
@@ -1085,8 +935,17 @@
     }
 }
 
-void AudioFlinger::ThreadBase::updateWakeLockUids_l(const SortedVector<int> &uids) {
+void AudioFlinger::ThreadBase::updateWakeLockUids_l(const SortedVector<uid_t> &uids) {
     getPowerManager_l();
+
+#if !LOG_NDEBUG
+    std::stringstream s;
+    for (uid_t uid : uids) {
+        s << uid << " ";
+    }
+    ALOGD("updateWakeLockUids_l %s uids:%s", mThreadName, s.str().c_str());
+#endif
+
     if (mWakeLockToken == NULL) { // token may be NULL if AudioFlinger::systemReady() not called.
         if (mSystemReady) {
             ALOGE("no wake lock to update, but system ready!");
@@ -1096,10 +955,10 @@
         return;
     }
     if (mPowerManager != 0) {
-        sp<IBinder> binder = new BBinder();
-        status_t status;
-        status = mPowerManager->updateWakeLockUids(mWakeLockToken, uids.size(), uids.array(),
-                    true /* FIXME force oneway contrary to .aidl */);
+        std::vector<int> uidsAsInt(uids.begin(), uids.end()); // powermanager expects uids as ints
+        status_t status = mPowerManager->updateWakeLockUids(
+                mWakeLockToken, uidsAsInt.size(), uidsAsInt.data(),
+                true /* FIXME force oneway contrary to .aidl */);
         ALOGV("updateWakeLockUids_l() %s status %d", mThreadName, status);
     }
 }
@@ -1412,6 +1271,7 @@
     bool chainCreated = false;
     bool effectCreated = false;
     bool effectRegistered = false;
+    audio_unique_id_t effectId = AUDIO_UNIQUE_ID_USE_UNSPECIFIED;
 
     lStatus = initCheck();
     if (lStatus != NO_ERROR) {
@@ -1445,15 +1305,16 @@
         ALOGV("createEffect_l() got effect %p on chain %p", effect.get(), chain.get());
 
         if (effect == 0) {
-            audio_unique_id_t id = mAudioFlinger->nextUniqueId(AUDIO_UNIQUE_ID_USE_EFFECT);
+            effectId = mAudioFlinger->nextUniqueId(AUDIO_UNIQUE_ID_USE_EFFECT);
             // Check CPU and memory usage
-            lStatus = AudioSystem::registerEffect(desc, mId, chain->strategy(), sessionId, id);
+            lStatus = AudioSystem::registerEffect(
+                    desc, mId, chain->strategy(), sessionId, effectId);
             if (lStatus != NO_ERROR) {
                 goto Exit;
             }
             effectRegistered = true;
             // create a new effect module if none present in the chain
-            lStatus = chain->createEffect_l(effect, this, desc, id, sessionId, pinned);
+            lStatus = chain->createEffect_l(effect, this, desc, effectId, sessionId, pinned);
             if (lStatus != NO_ERROR) {
                 goto Exit;
             }
@@ -1482,7 +1343,7 @@
             chain->removeEffect_l(effect);
         }
         if (effectRegistered) {
-            AudioSystem::unregisterEffect(effect->id());
+            AudioSystem::unregisterEffect(effectId);
         }
         if (chainCreated) {
             removeEffectChain_l(chain);
@@ -1669,6 +1530,83 @@
     mPendingConfigEvents.clear();
 }
 
+template <typename T>
+ssize_t AudioFlinger::ThreadBase::ActiveTracks<T>::add(const sp<T> &track) {
+    ssize_t index = mActiveTracks.indexOf(track);
+    if (index >= 0) {
+        ALOGW("ActiveTracks<T>::add track %p already there", track.get());
+        return index;
+    }
+    mActiveTracksGeneration++;
+    mLatestActiveTrack = track;
+    ++mBatteryCounter[track->uid()].second;
+    return mActiveTracks.add(track);
+}
+
+template <typename T>
+ssize_t AudioFlinger::ThreadBase::ActiveTracks<T>::remove(const sp<T> &track) {
+    ssize_t index = mActiveTracks.remove(track);
+    if (index < 0) {
+        ALOGW("ActiveTracks<T>::remove nonexistent track %p", track.get());
+        return index;
+    }
+    mActiveTracksGeneration++;
+    --mBatteryCounter[track->uid()].second;
+    // mLatestActiveTrack is not cleared even if is the same as track.
+    return index;
+}
+
+template <typename T>
+void AudioFlinger::ThreadBase::ActiveTracks<T>::clear() {
+    for (const sp<T> &track : mActiveTracks) {
+        BatteryNotifier::getInstance().noteStopAudio(track->uid());
+    }
+    mLastActiveTracksGeneration = mActiveTracksGeneration;
+    mActiveTracks.clear();
+    mLatestActiveTrack.clear();
+    mBatteryCounter.clear();
+}
+
+template <typename T>
+void AudioFlinger::ThreadBase::ActiveTracks<T>::updatePowerState(
+        sp<ThreadBase> thread, bool force) {
+    // Updates ActiveTracks client uids to the thread wakelock.
+    if (mActiveTracksGeneration != mLastActiveTracksGeneration || force) {
+        thread->updateWakeLockUids_l(getWakeLockUids());
+        mLastActiveTracksGeneration = mActiveTracksGeneration;
+    }
+
+    // Updates BatteryNotifier uids
+    for (auto it = mBatteryCounter.begin(); it != mBatteryCounter.end();) {
+        const uid_t uid = it->first;
+        ssize_t &previous = it->second.first;
+        ssize_t &current = it->second.second;
+        if (current > 0) {
+            if (previous == 0) {
+                BatteryNotifier::getInstance().noteStartAudio(uid);
+            }
+            previous = current;
+            ++it;
+        } else if (current == 0) {
+            if (previous > 0) {
+                BatteryNotifier::getInstance().noteStopAudio(uid);
+            }
+            it = mBatteryCounter.erase(it); // std::map<> is stable on iterator erase.
+        } else /* (current < 0) */ {
+            LOG_ALWAYS_FATAL("negative battery count %zd", current);
+        }
+    }
+}
+
+void AudioFlinger::ThreadBase::broadcast_l()
+{
+    // Thread could be blocked waiting for async
+    // so signal it to handle state changes immediately
+    // If threadLoop is currently unlocked a signal of mWaitWorkCV will
+    // be lost so we also flag to prevent it blocking on mWaitWorkCV
+    mSignalPending = true;
+    mWaitWorkCV.broadcast();
+}
 
 // ----------------------------------------------------------------------------
 //      Playback
@@ -1695,7 +1633,6 @@
         mSuspended(0), mBytesWritten(0),
         mFramesWritten(0),
         mSuspendedFrames(0),
-        mActiveTracksGeneration(0),
         // mStreamTypes[] initialized in constructor body
         mOutput(output),
         mLastWriteTime(-1), mNumWrites(0), mNumDelayedWrites(0), mInWrite(false),
@@ -1707,7 +1644,6 @@
         mUseAsyncWrite(false),
         mWriteAckSequence(0),
         mDrainSequence(0),
-        mSignalPending(false),
         mScreenState(AudioFlinger::mScreenState),
         // index 0 is reserved for normal mixer's submix
         mFastTrackAvailMask(((1 << FastMixerState::sMaxFastTracks) - 1) & ~1),
@@ -1758,6 +1694,7 @@
     dumpInternals(fd, args);
     dumpTracks(fd, args);
     dumpEffectChains(fd, args);
+    mLocalLog.dump(fd, args, "  " /* prefix */);
 }
 
 void AudioFlinger::PlaybackThread::dumpTracks(int fd, const Vector<String16>& args __unused)
@@ -1814,8 +1751,8 @@
         result.append(buffer);
         Track::appendDumpHeader(result);
         for (size_t i = 0; i < numactive; ++i) {
-            sp<Track> track = mActiveTracks[i].promote();
-            if (track != 0 && mTracks.indexOf(track) < 0) {
+            sp<Track> track = mActiveTracks[i];
+            if (mTracks.indexOf(track) < 0) {
                 track->dump(buffer, SIZE, true);
                 result.append(buffer);
             }
@@ -1845,8 +1782,8 @@
     dprintf(fd, "  Standby delay ns=%lld\n", (long long)mStandbyDelayNs);
     AudioStreamOut *output = mOutput;
     audio_output_flags_t flags = output != NULL ? output->flags : AUDIO_OUTPUT_FLAG_NONE;
-    String8 flagsAsString = outputFlagsToString(flags);
-    dprintf(fd, "  AudioStreamOut: %p flags %#x (%s)\n", output, flags, flagsAsString.string());
+    dprintf(fd, "  AudioStreamOut: %p flags %#x (%s)\n",
+            output, flags, outputFlagsToString(flags).c_str());
     dprintf(fd, "  Frames written: %lld\n", (long long)mFramesWritten);
     dprintf(fd, "  Suspended frames: %lld\n", (long long)mSuspendedFrames);
     if (mPipeSink.get() != nullptr) {
@@ -1854,7 +1791,7 @@
     }
     if (output != nullptr) {
         dprintf(fd, "  Hal stream dump:\n");
-        (void)output->stream->common.dump(&output->stream->common, fd);
+        (void)output->stream->dump(fd);
     }
 }
 
@@ -1871,7 +1808,8 @@
     ALOGV("  preExit()");
     // FIXME this is using hard-coded strings but in the future, this functionality will be
     //       converted to use audio HAL extensions required to support tunneling
-    mOutput->stream->common.set_parameters(&mOutput->stream->common, "exiting=1");
+    status_t result = mOutput->stream->setParameters(String8("exiting=1"));
+    ALOGE_IF(result != OK, "Error when setting parameters on exit: %d", result);
 }
 
 // PlaybackThread::createTrack_l() must be called with AudioFlinger::mLock held
@@ -1886,8 +1824,9 @@
         audio_session_t sessionId,
         audio_output_flags_t *flags,
         pid_t tid,
-        int uid,
-        status_t *status)
+        uid_t uid,
+        status_t *status,
+        audio_port_handle_t portId)
 {
     size_t frameCount = *pFrameCount;
     sp<Track> track;
@@ -1978,7 +1917,12 @@
             && audio_has_proportional_frames(format) && sharedBuffer == 0) {
         // this must match AudioTrack.cpp calculateMinFrameCount().
         // TODO: Move to a common library
-        uint32_t latencyMs = mOutput->stream->get_latency(mOutput->stream);
+        uint32_t latencyMs = 0;
+        lStatus = mOutput->stream->getLatency(&latencyMs);
+        if (lStatus != OK) {
+            ALOGE("Error when retrieving output stream latency: %d", lStatus);
+            goto Exit;
+        }
         uint32_t minBufCount = latencyMs / ((1000 * mNormalFrameCount) / mSampleRate);
         if (minBufCount < 2) {
             minBufCount = 2;
@@ -2064,7 +2008,7 @@
 
         track = new Track(this, client, streamType, sampleRate, format,
                           channelMask, frameCount, NULL, sharedBuffer,
-                          sessionId, uid, *flags, TrackBase::TYPE_DEFAULT);
+                          sessionId, uid, *flags, TrackBase::TYPE_DEFAULT, portId);
 
         lStatus = track != 0 ? track->initCheck() : (status_t) NO_MEMORY;
         if (lStatus != NO_ERROR) {
@@ -2086,7 +2030,7 @@
             pid_t callingPid = IPCThreadState::self()->getCallingPid();
             // we don't have CAP_SYS_NICE, nor do we want to have it as it's too powerful,
             // so ask activity manager to do this on our behalf
-            sendPrioConfigEvent_l(callingPid, tid, kPriorityAudioApp);
+            sendPrioConfigEvent_l(callingPid, tid, kPriorityAudioApp, true /*isForApp*/);
         }
     }
 
@@ -2109,11 +2053,11 @@
 }
 uint32_t AudioFlinger::PlaybackThread::latency_l() const
 {
-    if (initCheck() == NO_ERROR) {
-        return correctLatency_l(mOutput->stream->get_latency(mOutput->stream));
-    } else {
-        return 0;
+    uint32_t latency;
+    if (initCheck() == NO_ERROR && mOutput->stream->getLatency(&latency) == OK) {
+        return correctLatency_l(latency);
     }
+    return 0;
 }
 
 void AudioFlinger::PlaybackThread::setMasterVolume(float value)
@@ -2130,6 +2074,9 @@
 
 void AudioFlinger::PlaybackThread::setMasterMute(bool muted)
 {
+    if (isDuplicating()) {
+        return;
+    }
     Mutex::Autolock _l(mLock);
     // Don't apply master mute in SW if our HAL can do it for us.
     if (mOutput && mOutput->audioHwDev &&
@@ -2212,9 +2159,6 @@
         track->mResetDone = false;
         track->mPresentationCompleteFrames = 0;
         mActiveTracks.add(track);
-        mWakeLockUids.add(track->uid());
-        mActiveTracksGeneration++;
-        mLatestActiveTrack = track;
         sp<EffectChain> chain = getEffectChain_l(track->sessionId());
         if (chain != 0) {
             ALOGV("addTrack_l() starting track on chain %p for session %d", chain.get(),
@@ -2222,6 +2166,10 @@
             chain->incActiveTrackCnt();
         }
 
+        char buffer[256];
+        track->dump(buffer, ARRAY_SIZE(buffer), false /* active */);
+        mLocalLog.log("addTrack_l    (%p) %s", track.get(), buffer + 4); // log for analysis
+
         status = NO_ERROR;
     }
 
@@ -2247,6 +2195,11 @@
 void AudioFlinger::PlaybackThread::removeTrack_l(const sp<Track>& track)
 {
     track->triggerEvents(AudioSystem::SYNC_EVENT_PRESENTATION_COMPLETE);
+
+    char buffer[256];
+    track->dump(buffer, ARRAY_SIZE(buffer), false /* active */);
+    mLocalLog.log("removeTrack_l (%p) %s", track.get(), buffer + 4); // log for analysis
+
     mTracks.remove(track);
     deleteTrackName_l(track->name());
     // redundant as track is about to be destroyed, for dumpsys only
@@ -2265,27 +2218,14 @@
     }
 }
 
-void AudioFlinger::PlaybackThread::broadcast_l()
-{
-    // Thread could be blocked waiting for async
-    // so signal it to handle state changes immediately
-    // If threadLoop is currently unlocked a signal of mWaitWorkCV will
-    // be lost so we also flag to prevent it blocking on mWaitWorkCV
-    mSignalPending = true;
-    mWaitWorkCV.broadcast();
-}
-
 String8 AudioFlinger::PlaybackThread::getParameters(const String8& keys)
 {
     Mutex::Autolock _l(mLock);
-    if (initCheck() != NO_ERROR) {
-        return String8();
+    String8 out_s8;
+    if (initCheck() == NO_ERROR && mOutput->stream->getParameters(keys, &out_s8) == OK) {
+        return out_s8;
     }
-
-    char *s = mOutput->stream->common.get_parameters(&mOutput->stream->common, keys.string());
-    const String8 out_s8(s);
-    free(s);
-    return out_s8;
+    return String8();
 }
 
 void AudioFlinger::PlaybackThread::ioConfigChanged(audio_io_config_event event, pid_t pid) {
@@ -2314,21 +2254,18 @@
     mAudioFlinger->ioConfigChanged(event, desc, pid);
 }
 
-void AudioFlinger::PlaybackThread::writeCallback()
+void AudioFlinger::PlaybackThread::onWriteReady()
 {
-    ALOG_ASSERT(mCallbackThread != 0);
     mCallbackThread->resetWriteBlocked();
 }
 
-void AudioFlinger::PlaybackThread::drainCallback()
+void AudioFlinger::PlaybackThread::onDrainReady()
 {
-    ALOG_ASSERT(mCallbackThread != 0);
     mCallbackThread->resetDraining();
 }
 
-void AudioFlinger::PlaybackThread::errorCallback()
+void AudioFlinger::PlaybackThread::onError()
 {
-    ALOG_ASSERT(mCallbackThread != 0);
     mCallbackThread->setAsyncError();
 }
 
@@ -2352,30 +2289,6 @@
     }
 }
 
-// static
-int AudioFlinger::PlaybackThread::asyncCallback(stream_callback_event_t event,
-                                                void *param __unused,
-                                                void *cookie)
-{
-    AudioFlinger::PlaybackThread *me = (AudioFlinger::PlaybackThread *)cookie;
-    ALOGV("asyncCallback() event %d", event);
-    switch (event) {
-    case STREAM_CBK_EVENT_WRITE_READY:
-        me->writeCallback();
-        break;
-    case STREAM_CBK_EVENT_DRAIN_READY:
-        me->drainCallback();
-        break;
-    case STREAM_CBK_EVENT_ERROR:
-        me->errorCallback();
-        break;
-    default:
-        ALOGW("asyncCallback() unknown event %d", event);
-        break;
-    }
-    return 0;
-}
-
 void AudioFlinger::PlaybackThread::readOutputParameters_l()
 {
     // unfortunately we have no way of recovering from errors here, hence the LOG_ALWAYS_FATAL
@@ -2392,7 +2305,8 @@
     mChannelCount = audio_channel_count_from_out_mask(mChannelMask);
 
     // Get actual HAL format.
-    mHALFormat = mOutput->stream->common.get_format(&mOutput->stream->common);
+    status_t result = mOutput->stream->getFormat(&mHALFormat);
+    LOG_ALWAYS_FATAL_IF(result != OK, "Error when retrieving output stream format: %d", result);
     // Get format from the shim, which will be different than the HAL format
     // if playing compressed audio over HDMI passthrough.
     mFormat = mOutput->getFormat();
@@ -2405,17 +2319,17 @@
                 mFormat);
     }
     mFrameSize = mOutput->getFrameSize();
-    mBufferSize = mOutput->stream->common.get_buffer_size(&mOutput->stream->common);
+    result = mOutput->stream->getBufferSize(&mBufferSize);
+    LOG_ALWAYS_FATAL_IF(result != OK,
+            "Error when retrieving output stream buffer size: %d", result);
     mFrameCount = mBufferSize / mFrameSize;
     if (mFrameCount & 15) {
         ALOGW("HAL output buffer size is %zu frames but AudioMixer requires multiples of 16 frames",
                 mFrameCount);
     }
 
-    if ((mOutput->flags & AUDIO_OUTPUT_FLAG_NON_BLOCKING) &&
-            (mOutput->stream->set_callback != NULL)) {
-        if (mOutput->stream->set_callback(mOutput->stream,
-                                      AudioFlinger::PlaybackThread::asyncCallback, this) == 0) {
+    if (mOutput->flags & AUDIO_OUTPUT_FLAG_NON_BLOCKING) {
+        if (mOutput->stream->setCallback(this) == OK) {
             mUseAsyncWrite = true;
             mCallbackThread = new AudioFlinger::AsyncCallbackThread(this);
         }
@@ -2423,14 +2337,15 @@
 
     mHwSupportsPause = false;
     if (mOutput->flags & AUDIO_OUTPUT_FLAG_DIRECT) {
-        if (mOutput->stream->pause != NULL) {
-            if (mOutput->stream->resume != NULL) {
+        bool supportsPause = false, supportsResume = false;
+        if (mOutput->stream->supportsPauseAndResume(&supportsPause, &supportsResume) == OK) {
+            if (supportsPause && supportsResume) {
                 mHwSupportsPause = true;
-            } else {
+            } else if (supportsPause) {
                 ALOGW("direct output implements pause but not resume");
+            } else if (supportsResume) {
+                ALOGW("direct output implements resume but not pause");
             }
-        } else if (mOutput->stream->resume != NULL) {
-            ALOGW("direct output implements resume but not pause");
         }
     }
     if (!mHwSupportsPause && mOutput->flags & AUDIO_OUTPUT_FLAG_HW_AV_SYNC) {
@@ -2620,12 +2535,12 @@
 }
 
 // this method must always be called either with ThreadBase mLock held or inside the thread loop
-audio_stream_t* AudioFlinger::PlaybackThread::stream() const
+sp<StreamHalInterface> AudioFlinger::PlaybackThread::stream() const
 {
     if (mOutput == NULL) {
         return NULL;
     }
-    return &mOutput->stream->common;
+    return mOutput->stream;
 }
 
 uint32_t AudioFlinger::PlaybackThread::activeSleepTimeUs() const
@@ -2763,7 +2678,8 @@
 
 void AudioFlinger::PlaybackThread::threadLoop_drain()
 {
-    if (mOutput->stream->drain) {
+    bool supportsDrain = false;
+    if (mOutput->stream->supportsDrain(&supportsDrain) == OK && supportsDrain) {
         ALOGV("draining %s", (mMixerStatus == MIXER_DRAIN_TRACK) ? "early" : "full");
         if (mUseAsyncWrite) {
             ALOGW_IF(mDrainSequence & 1, "threadLoop_drain(): out of sequence drain request");
@@ -2771,9 +2687,8 @@
             ALOG_ASSERT(mCallbackThread != 0);
             mCallbackThread->setDraining(mDrainSequence);
         }
-        mOutput->stream->drain(mOutput->stream,
-            (mMixerStatus == MIXER_DRAIN_TRACK) ? AUDIO_DRAIN_EARLY_NOTIFY
-                                                : AUDIO_DRAIN_ALL);
+        status_t result = mOutput->stream->drain(mMixerStatus == MIXER_DRAIN_TRACK);
+        ALOGE_IF(result != OK, "Error when draining stream: %d", result);
     }
 }
 
@@ -2785,6 +2700,11 @@
             sp<Track> track = mTracks[i];
             track->invalidate();
         }
+        // Clear ActiveTracks to update BatteryNotifier in case active tracks remain.
+        // After we exit there are no more track changes sent to BatteryNotifier
+        // because that requires an active threadLoop.
+        // TODO: should we decActiveTrackCnt() of the cleared track effect chain?
+        mActiveTracks.clear();
     }
 }
 
@@ -2849,9 +2769,14 @@
 status_t AudioFlinger::PlaybackThread::addEffectChain_l(const sp<EffectChain>& chain)
 {
     audio_session_t session = chain->sessionId();
-    int16_t* buffer = reinterpret_cast<int16_t*>(mEffectBufferEnabled
-            ? mEffectBuffer : mSinkBuffer);
-    bool ownsBuffer = false;
+    sp<EffectBufferHalInterface> halInBuffer, halOutBuffer;
+    status_t result = EffectBufferHalInterface::mirror(
+            mEffectBufferEnabled ? mEffectBuffer : mSinkBuffer,
+            mEffectBufferEnabled ? mEffectBufferSize : mSinkBufferSize,
+            &halInBuffer);
+    if (result != OK) return result;
+    halOutBuffer = halInBuffer;
+    int16_t *buffer = reinterpret_cast<int16_t*>(halInBuffer->externalData());
 
     ALOGV("addEffectChain_l() %p on thread %p for session %d", chain.get(), this, session);
     if (session > AUDIO_SESSION_OUTPUT_MIX) {
@@ -2859,10 +2784,13 @@
         // the sink buffer as input
         if (mType != DIRECT) {
             size_t numSamples = mNormalFrameCount * mChannelCount;
-            buffer = new int16_t[numSamples];
-            memset(buffer, 0, numSamples * sizeof(int16_t));
-            ALOGV("addEffectChain_l() creating new input buffer %p session %d", buffer, session);
-            ownsBuffer = true;
+            status_t result = EffectBufferHalInterface::allocate(
+                    numSamples * sizeof(int16_t),
+                    &halInBuffer);
+            if (result != OK) return result;
+            buffer = halInBuffer->audioBuffer()->s16;
+            ALOGV("addEffectChain_l() creating new input buffer %p session %d",
+                    buffer, session);
         }
 
         // Attach all tracks with same session ID to this chain.
@@ -2877,11 +2805,7 @@
         }
 
         // indicate all active tracks in the chain
-        for (size_t i = 0 ; i < mActiveTracks.size() ; ++i) {
-            sp<Track> track = mActiveTracks[i].promote();
-            if (track == 0) {
-                continue;
-            }
+        for (const sp<Track> &track : mActiveTracks) {
             if (session == track->sessionId()) {
                 ALOGV("addEffectChain_l() activating track %p on session %d", track.get(), session);
                 chain->incActiveTrackCnt();
@@ -2889,9 +2813,8 @@
         }
     }
     chain->setThread(this);
-    chain->setInBuffer(buffer, ownsBuffer);
-    chain->setOutBuffer(reinterpret_cast<int16_t*>(mEffectBufferEnabled
-            ? mEffectBuffer : mSinkBuffer));
+    chain->setInBuffer(halInBuffer);
+    chain->setOutBuffer(halOutBuffer);
     // Effect chain for session AUDIO_SESSION_OUTPUT_STAGE is inserted at end of effect
     // chains list in order to be processed last as it contains output stage effects.
     // Effect chain for session AUDIO_SESSION_OUTPUT_MIX is inserted before
@@ -2928,11 +2851,7 @@
         if (chain == mEffectChains[i]) {
             mEffectChains.removeAt(i);
             // detach all active tracks from the chain
-            for (size_t i = 0 ; i < mActiveTracks.size() ; ++i) {
-                sp<Track> track = mActiveTracks[i].promote();
-                if (track == 0) {
-                    continue;
-                }
+            for (const sp<Track> &track : mActiveTracks) {
                 if (session == track->sessionId()) {
                     ALOGV("removeEffectChain_l(): stopping track on chain %p for session Id: %d",
                             chain.get(), session);
@@ -2996,6 +2915,8 @@
 
 bool AudioFlinger::PlaybackThread::threadLoop()
 {
+    logWriterTLS = mNBLogWriter.get();
+
     Vector< sp<Track> > tracksToRemove;
 
     mStandbyTimeNs = systemTime();
@@ -3009,8 +2930,6 @@
     // FIXME could this be made local to while loop?
     writeFrames = 0;
 
-    int lastGeneration = 0;
-
     cacheParameters_l();
     mSleepTimeUs = mIdleSleepTimeUs;
 
@@ -3029,9 +2948,15 @@
     const char *logString = NULL;
 
     checkSilentMode_l();
-
+#if 0
+    int z = 0; // used in logFormat example
+#endif
     while (!exitPending())
     {
+        // Log merge requests are performed during AudioFlinger binder transactions, but
+        // that does not cover audio playback. It's requested here for that reason.
+        mAudioFlinger->requestLogMerge();
+
         cpuStats.sample(myName);
 
         Vector< sp<EffectChain> > effectChains;
@@ -3108,10 +3033,9 @@
                     mTimestamp.mTimeNs[ExtendedTimestamp::LOCATION_SERVER] = mLastWriteTime == -1
                             ? systemTime() : mLastWriteTime;
                 }
-                const size_t size = mActiveTracks.size();
-                for (size_t i = 0; i < size; ++i) {
-                    sp<Track> t = mActiveTracks[i].promote();
-                    if (t != 0 && !t->isFastTrack()) {
+
+                for (const sp<Track> &t : mActiveTracks) {
+                    if (!t->isFastTrack()) {
                         t->updateTrackFrameInfo(
                                 t->mAudioTrackServerProxy->framesReleased(),
                                 mFramesWritten,
@@ -3119,7 +3043,17 @@
                     }
                 }
             }
-
+#if 0
+            // logFormat example
+            if (z % 100 == 0) {
+                timespec ts;
+                clock_gettime(CLOCK_MONOTONIC, &ts);
+                LOGT("This is an integer %d, this is a float %f, this is my "
+                    "pid %p %% %s %t", 42, 3.14, "and this is a timestamp", ts);
+                LOGT("A deceptive null-terminated string %\0");
+            }
+            ++z;
+#endif
             saveOutputTracks();
             if (mSignalPending) {
                 // A signal was raised while we were unlocked
@@ -3132,11 +3066,14 @@
                 if (!keepWakeLock()) {
                     releaseWakeLock_l();
                     released = true;
-                    mWakeLockUids.clear();
-                    mActiveTracksGeneration++;
                 }
-                ALOGV("wait async completion");
-                mWaitWorkCV.wait(mLock);
+
+                const int64_t waitNs = computeWaitTimeNs_l();
+                ALOGV("wait async completion (wait time: %lld)", (long long)waitNs);
+                status_t status = mWaitWorkCV.waitRelative(mLock, waitNs);
+                if (status == TIMED_OUT) {
+                    mSignalPending = true; // if timeout recheck everything
+                }
                 ALOGV("async completion/wake");
                 if (released) {
                     acquireWakeLock_l();
@@ -3167,8 +3104,6 @@
                     }
 
                     releaseWakeLock_l();
-                    mWakeLockUids.clear();
-                    mActiveTracksGeneration++;
                     // wait until we have something to do...
                     ALOGV("%s going to sleep", myName.string());
                     mWaitWorkCV.wait(mLock);
@@ -3193,12 +3128,7 @@
             // mMixerStatusIgnoringFastTracks is also updated internally
             mMixerStatus = prepareTracks_l(&tracksToRemove);
 
-            // compare with previously applied list
-            if (lastGeneration != mActiveTracksGeneration) {
-                // update wakelock
-                updateWakeLockUids_l(mWakeLockUids);
-                lastGeneration = mActiveTracksGeneration;
-            }
+            mActiveTracks.updatePowerState(this);
 
             // prevent any changes in effect chain list and in each effect chain
             // during mixing and effect process as the audio buffers could be deleted
@@ -3416,8 +3346,6 @@
     }
 
     releaseWakeLock();
-    mWakeLockUids.clear();
-    mActiveTracksGeneration++;
 
     ALOGV("Thread %p type %d exiting", this, mType);
     return false;
@@ -3431,8 +3359,6 @@
         for (size_t i=0 ; i<count ; i++) {
             const sp<Track>& track = tracksToRemove.itemAt(i);
             mActiveTracks.remove(track);
-            mWakeLockUids.remove(track->uid());
-            mActiveTracksGeneration++;
             ALOGV("removeTracks_l removing track on session %d", track->sessionId());
             sp<EffectChain> chain = getEffectChain_l(track->sessionId());
             if (chain != 0) {
@@ -3442,6 +3368,10 @@
             }
             if (track->isTerminated()) {
                 removeTrack_l(track);
+            } else { // inactive but not terminated
+                char buffer[256];
+                track->dump(buffer, ARRAY_SIZE(buffer), false /* active */);
+                mLocalLog.log("removeTracks_l(%p) %s", track.get(), buffer + 4);
             }
         }
     }
@@ -3458,11 +3388,9 @@
         }
         return status;
     }
-    if ((mType == OFFLOAD || mType == DIRECT)
-            && mOutput != NULL && mOutput->stream->get_presentation_position) {
+    if ((mType == OFFLOAD || mType == DIRECT) && mOutput != NULL) {
         uint64_t position64;
-        int ret = mOutput->getPresentationPosition(&position64, &timestamp.mTime);
-        if (ret == 0) {
+        if (mOutput->getPresentationPosition(&position64, &timestamp.mTime) == OK) {
             timestamp.mPosition = (uint32_t)position64;
             return NO_ERROR;
         }
@@ -3529,14 +3457,13 @@
     mOutDevice = type;
     mPatch = *patch;
 
-    if (mOutput->audioHwDev->version() >= AUDIO_DEVICE_API_VERSION_3_0) {
-        audio_hw_device_t *hwDevice = mOutput->audioHwDev->hwDevice();
-        status = hwDevice->create_audio_patch(hwDevice,
-                                               patch->num_sources,
-                                               patch->sources,
-                                               patch->num_sinks,
-                                               patch->sinks,
-                                               handle);
+    if (mOutput->audioHwDev->supportsAudioPatches()) {
+        sp<DeviceHalInterface> hwDevice = mOutput->audioHwDev->hwDevice();
+        status = hwDevice->createAudioPatch(patch->num_sources,
+                                            patch->sources,
+                                            patch->num_sinks,
+                                            patch->sinks,
+                                            handle);
     } else {
         char *address;
         if (strcmp(patch->sinks[0].ext.device.address, "") != 0) {
@@ -3549,9 +3476,8 @@
         }
         AudioParameter param = AudioParameter(String8(address));
         free(address);
-        param.addInt(String8(AUDIO_PARAMETER_STREAM_ROUTING), (int)type);
-        status = mOutput->stream->common.set_parameters(&mOutput->stream->common,
-                param.toString().string());
+        param.addInt(String8(AudioParameter::keyRouting), (int)type);
+        status = mOutput->stream->setParameters(param.toString());
         *handle = AUDIO_PATCH_HANDLE_NONE;
     }
     if (configChanged) {
@@ -3581,14 +3507,13 @@
 
     mOutDevice = AUDIO_DEVICE_NONE;
 
-    if (mOutput->audioHwDev->version() >= AUDIO_DEVICE_API_VERSION_3_0) {
-        audio_hw_device_t *hwDevice = mOutput->audioHwDev->hwDevice();
-        status = hwDevice->release_audio_patch(hwDevice, handle);
+    if (mOutput->audioHwDev->supportsAudioPatches()) {
+        sp<DeviceHalInterface> hwDevice = mOutput->audioHwDev->hwDevice();
+        status = hwDevice->releaseAudioPatch(handle);
     } else {
         AudioParameter param;
-        param.addInt(String8(AUDIO_PARAMETER_STREAM_ROUTING), 0);
-        status = mOutput->stream->common.set_parameters(&mOutput->stream->common,
-                param.toString().string());
+        param.addInt(String8(AudioParameter::keyRouting), 0);
+        status = mOutput->stream->setParameters(param.toString());
     }
     return status;
 }
@@ -3662,9 +3587,17 @@
         break;
     case FastMixer_Static:
     case FastMixer_Dynamic:
-        initFastMixer = mFrameCount < mNormalFrameCount;
+        // FastMixer was designed to operate with a HAL that pulls at a regular rate,
+        // where the period is less than an experimentally determined threshold that can be
+        // scheduled reliably with CFS. However, the BT A2DP HAL is
+        // bursty (does not pull at a regular rate) and so cannot operate with FastMixer.
+        initFastMixer = mFrameCount < mNormalFrameCount
+                && (mOutDevice & AUDIO_DEVICE_OUT_ALL_A2DP) == 0;
         break;
     }
+    ALOGW_IF(initFastMixer == false && mFrameCount < mNormalFrameCount,
+            "FastMixer is preferred for this sink as frameCount %zu is less than threshold %zu",
+            mFrameCount, mNormalFrameCount);
     if (initFastMixer) {
         audio_format_t fastMixerFormat;
         if (mMixerBufferEnabled && mEffectBufferEnabled) {
@@ -3763,7 +3696,8 @@
         // start the fast mixer
         mFastMixer->run("FastMixer", PRIORITY_URGENT_AUDIO);
         pid_t tid = mFastMixer->getTid();
-        sendPrioConfigEvent(getpid_cached, tid, kPriorityFastMixer);
+        sendPrioConfigEvent(getpid_cached, tid, kPriorityFastMixer, false);
+        stream()->setHalThreadPriority(kPriorityFastMixer);
 
 #ifdef AUDIO_WATCHDOG
         // create and start the watchdog
@@ -3893,6 +3827,15 @@
         FastMixerStateQueue *sq = mFastMixer->sq();
         FastMixerState *state = sq->begin();
         if (!(state->mCommand & FastMixerState::IDLE)) {
+            // Report any frames trapped in the Monopipe
+            MonoPipe *monoPipe = (MonoPipe *)mPipeSink.get();
+            const long long pipeFrames = monoPipe->maxFrames() - monoPipe->availableToWrite();
+            mLocalLog.log("threadLoop_standby: framesWritten:%lld  suspendedFrames:%lld  "
+                    "monoPipeWritten:%lld  monoPipeLeft:%lld",
+                    (long long)mFramesWritten, (long long)mSuspendedFrames,
+                    (long long)mPipeSink->framesWritten(), pipeFrames);
+            mLocalLog.log("threadLoop_standby: %s", mTimestamp.toString().c_str());
+
             state->mCommand = FastMixerState::COLD_IDLE;
             state->mColdFutexAddr = &mFastMixerFutex;
             state->mColdGen++;
@@ -4047,19 +3990,18 @@
     FastMixerState *state = NULL;
     bool didModify = false;
     FastMixerStateQueue::block_t block = FastMixerStateQueue::BLOCK_UNTIL_PUSHED;
+    bool coldIdle = false;
     if (mFastMixer != 0) {
         sq = mFastMixer->sq();
         state = sq->begin();
+        coldIdle = state->mCommand == FastMixerState::COLD_IDLE;
     }
 
     mMixerBufferValid = false;  // mMixerBuffer has no valid data until appropriate tracks found.
     mEffectBufferValid = false; // mEffectBuffer has no valid data until tracks found.
 
     for (size_t i=0 ; i<count ; i++) {
-        const sp<Track> t = mActiveTracks[i].promote();
-        if (t == 0) {
-            continue;
-        }
+        const sp<Track> t = mActiveTracks[i];
 
         // this const just means the local variable doesn't change
         Track* const track = t.get();
@@ -4154,8 +4096,11 @@
                 // We have consumed all the buffers of this track.
                 // This would be incomplete if we auto-paused on underrun
                 {
-                    size_t audioHALFrames =
-                            (mOutput->stream->get_latency(mOutput->stream)*mSampleRate) / 1000;
+                    uint32_t latency = 0;
+                    status_t result = mOutput->stream->getLatency(&latency);
+                    ALOGE_IF(result != OK,
+                            "Error when retrieving output stream latency: %d", result);
+                    size_t audioHALFrames = (latency * mSampleRate) / 1000;
                     int64_t framesWritten = mBytesWritten / mFrameSize;
                     if (!(mStandby || track->presentationComplete(framesWritten, audioHALFrames))) {
                         // track stays in active list until presentation is complete
@@ -4194,7 +4139,11 @@
                 }
                 // cache the combined master volume and stream type volume for fast mixer; this
                 // lacks any synchronization or barrier so VolumeProvider may read a stale value
-                track->mCachedVolume = masterVolume * mStreamTypes[track->streamType()].volume;
+                const float vh = track->getVolumeHandler()->getVolume(
+                        track->mAudioTrackServerProxy->framesReleased()).first;
+                track->mCachedVolume = masterVolume
+                        * mStreamTypes[track->streamType()].volume
+                        * vh;
                 ++fastTracks;
             } else {
                 // was it previously active?
@@ -4323,7 +4272,7 @@
                 // read original volumes with volume control
                 float typeVolume = mStreamTypes[track->streamType()].volume;
                 float v = masterVolume * typeVolume;
-                AudioTrackServerProxy *proxy = track->mAudioTrackServerProxy;
+                sp<AudioTrackServerProxy> proxy = track->mAudioTrackServerProxy;
                 gain_minifloat_packed_t vlr = proxy->getVolumeLR();
                 vlf = float_from_gain(gain_minifloat_unpack_left(vlr));
                 vrf = float_from_gain(gain_minifloat_unpack_right(vlr));
@@ -4336,9 +4285,11 @@
                     ALOGV("Track right volume out of range: %.3g", vrf);
                     vrf = GAIN_FLOAT_UNITY;
                 }
-                // now apply the master volume and stream type volume
-                vlf *= v;
-                vrf *= v;
+                const float vh = track->getVolumeHandler()->getVolume(
+                        track->mAudioTrackServerProxy->framesReleased()).first;
+                // now apply the master volume and stream type volume and shaper volume
+                vlf *= v * vh;
+                vrf *= v * vh;
                 // assuming master volume and stream type volume each go up to 1.0,
                 // then derive vl and vr as U8.24 versions for the effect chain
                 const float scaleto8_24 = MAX_GAIN_INT * MAX_GAIN_INT;
@@ -4539,7 +4490,15 @@
     }
     if (sq != NULL) {
         sq->end(didModify);
-        sq->push(block);
+        // No need to block if the FastMixer is in COLD_IDLE as the FastThread
+        // is not active. (We BLOCK_UNTIL_ACKED when entering COLD_IDLE
+        // when bringing the output sink into standby.)
+        //
+        // We will get the latest FastMixer state when we come out of COLD_IDLE.
+        //
+        // This occurs with BT suspend when we idle the FastMixer with
+        // active tracks, which may be added or removed.
+        sq->push(coldIdle ? FastMixerStateQueue::BLOCK_NEVER : block);
     }
 #ifdef AUDIO_WATCHDOG
     if (pauseAudioWatchdog && mAudioWatchdog != 0) {
@@ -4552,11 +4511,7 @@
         size_t i = __builtin_ctz(resetMask);
         ALOG_ASSERT(i < count);
         resetMask &= ~(1 << i);
-        sp<Track> t = mActiveTracks[i].promote();
-        if (t == 0) {
-            continue;
-        }
-        Track* track = t.get();
+        sp<Track> track = mActiveTracks[i];
         ALOG_ASSERT(track->isFastTrack() && track->isStopped());
         track->reset();
     }
@@ -4608,7 +4563,7 @@
 {
     uint32_t trackCount = 0;
     for (size_t i = 0; i < mTracks.size() ; i++) {
-        if (mTracks[i]->uid() == (int)uid) {
+        if (mTracks[i]->uid() == uid) {
             trackCount++;
         }
     }
@@ -4711,14 +4666,12 @@
     }
 
     if (status == NO_ERROR) {
-        status = mOutput->stream->common.set_parameters(&mOutput->stream->common,
-                                                keyValuePair.string());
+        status = mOutput->stream->setParameters(keyValuePair);
         if (!mStandby && status == INVALID_OPERATION) {
             mOutput->standby();
             mStandby = true;
             mBytesWritten = 0;
-            status = mOutput->stream->common.set_parameters(&mOutput->stream->common,
-                                                   keyValuePair.string());
+            status = mOutput->stream->setParameters(keyValuePair);
         }
         if (status == NO_ERROR && reconfig) {
             readOutputParameters_l();
@@ -4812,6 +4765,7 @@
         ThreadBase::type_t type, bool systemReady)
     :   PlaybackThread(audioFlinger, output, id, device, type, systemReady)
         // mLeftVolFloat, mRightVolFloat
+        , mVolumeShaperActive(false)
 {
 }
 
@@ -4828,7 +4782,15 @@
     } else {
         float typeVolume = mStreamTypes[track->streamType()].volume;
         float v = mMasterVolume * typeVolume;
-        AudioTrackServerProxy *proxy = track->mAudioTrackServerProxy;
+        sp<AudioTrackServerProxy> proxy = track->mAudioTrackServerProxy;
+
+        // Get volumeshaper scaling
+        std::pair<float /* volume */, bool /* active */>
+            vh = track->getVolumeHandler()->getVolume(
+                    track->mAudioTrackServerProxy->framesReleased());
+        v *= vh.first;
+        mVolumeShaperActive = vh.second;
+
         gain_minifloat_packed_t vlr = proxy->getVolumeLR();
         left = float_from_gain(gain_minifloat_unpack_left(vlr));
         if (left > GAIN_FLOAT_UNITY) {
@@ -4859,9 +4821,8 @@
                 left = (float)vl / (1 << 24);
                 right = (float)vr / (1 << 24);
             }
-            if (mOutput->stream->set_volume) {
-                mOutput->stream->set_volume(mOutput->stream, left, right);
-            }
+            status_t result = mOutput->stream->setVolume(left, right);
+            ALOGE_IF(result != OK, "Error when setting output stream volume: %d", result);
         }
     }
 }
@@ -4869,7 +4830,7 @@
 void AudioFlinger::DirectOutputThread::onAddNewTrack_l()
 {
     sp<Track> previousTrack = mPreviousTrack.promote();
-    sp<Track> latestTrack = mLatestActiveTrack.promote();
+    sp<Track> latestTrack = mActiveTracks.getLatest();
 
     if (previousTrack != 0 && latestTrack != 0) {
         if (mType == DIRECT) {
@@ -4895,13 +4856,7 @@
     bool doHwResume = false;
 
     // find out which tracks need to be processed
-    for (size_t i = 0; i < count; i++) {
-        sp<Track> t = mActiveTracks[i].promote();
-        // The track died recently
-        if (t == 0) {
-            continue;
-        }
-
+    for (const sp<Track> &t : mActiveTracks) {
         if (t->isInvalid()) {
             ALOGW("An invalidated track shouldn't be in active list");
             tracksToRemove->add(t);
@@ -4916,7 +4871,7 @@
         // In theory an older track could underrun and restart after the new one starts
         // but as we only care about the transition phase between two tracks on a
         // direct output, it is not a problem to ignore the underrun case.
-        sp<Track> l = mLatestActiveTrack.promote();
+        sp<Track> l = mActiveTracks.getLatest();
         bool last = l.get() == track;
 
         if (track->isPausing()) {
@@ -5071,13 +5026,15 @@
     // if resume is received before pause is executed.
     if (mHwSupportsPause && !mStandby &&
             (doHwPause || (mFlushPending && !mHwPaused && (count != 0)))) {
-        mOutput->stream->pause(mOutput->stream);
+        status_t result = mOutput->stream->pause();
+        ALOGE_IF(result != OK, "Error when pausing output stream: %d", result);
     }
     if (mFlushPending) {
         flushHw_l();
     }
     if (mHwSupportsPause && !mStandby && doHwResume) {
-        mOutput->stream->resume(mOutput->stream);
+        status_t result = mOutput->stream->resume();
+        ALOGE_IF(result != OK, "Error when resuming output stream: %d", result);
     }
     // remove all the tracks that need to be...
     removeTracks_l(*tracksToRemove);
@@ -5218,14 +5175,12 @@
         }
     }
     if (status == NO_ERROR) {
-        status = mOutput->stream->common.set_parameters(&mOutput->stream->common,
-                                                keyValuePair.string());
+        status = mOutput->stream->setParameters(keyValuePair);
         if (!mStandby && status == INVALID_OPERATION) {
             mOutput->standby();
             mStandby = true;
             mBytesWritten = 0;
-            status = mOutput->stream->common.set_parameters(&mOutput->stream->common,
-                                                   keyValuePair.string());
+            status = mOutput->stream->setParameters(keyValuePair);
         }
         if (status == NO_ERROR && reconfig) {
             readOutputParameters_l();
@@ -5292,6 +5247,13 @@
     mFlushPending = false;
 }
 
+int64_t AudioFlinger::DirectOutputThread::computeWaitTimeNs_l() const {
+    // If a VolumeShaper is active, we must wake up periodically to update volume.
+    const int64_t NS_PER_MS = 1000000;
+    return mVolumeShaperActive ?
+            kMinNormalSinkBufferSizeMs * NS_PER_MS : PlaybackThread::computeWaitTimeNs_l();
+}
+
 // ----------------------------------------------------------------------------
 
 AudioFlinger::AsyncCallbackThread::AsyncCallbackThread(
@@ -5450,12 +5412,7 @@
     ALOGV("OffloadThread::prepareTracks_l active tracks %zu", count);
 
     // find out which tracks need to be processed
-    for (size_t i = 0; i < count; i++) {
-        sp<Track> t = mActiveTracks[i].promote();
-        // The track died recently
-        if (t == 0) {
-            continue;
-        }
+    for (const sp<Track> &t : mActiveTracks) {
         Track* const track = t.get();
 #ifdef VERY_VERY_VERBOSE_LOGGING
         audio_track_cblk_t* cblk = track->cblk();
@@ -5464,7 +5421,7 @@
         // In theory an older track could underrun and restart after the new one starts
         // but as we only care about the transition phase between two tracks on a
         // direct output, it is not a problem to ignore the underrun case.
-        sp<Track> l = mLatestActiveTrack.promote();
+        sp<Track> l = mActiveTracks.getLatest();
         bool last = l.get() == track;
 
         if (track->isInvalid()) {
@@ -5612,8 +5569,11 @@
                 // Drain has completed or we are in standby, signal presentation complete
                 if (!(mDrainSequence & 1) || !last || mStandby) {
                     track->mState = TrackBase::STOPPED;
-                    size_t audioHALFrames =
-                            (mOutput->stream->get_latency(mOutput->stream)*mSampleRate) / 1000;
+                    uint32_t latency = 0;
+                    status_t result = mOutput->stream->getLatency(&latency);
+                    ALOGE_IF(result != OK,
+                            "Error when retrieving output stream latency: %d", result);
+                    size_t audioHALFrames = (latency * mSampleRate) / 1000;
                     int64_t framesWritten =
                             mBytesWritten / mOutput->getFrameSize();
                     track->presentationComplete(framesWritten, audioHALFrames);
@@ -5625,16 +5585,15 @@
                 // fill a buffer, then remove it from active list.
                 if (--(track->mRetryCount) <= 0) {
                     bool running = false;
-                    if (mOutput->stream->get_presentation_position != nullptr) {
-                        uint64_t position = 0;
-                        struct timespec unused;
-                        // The running check restarts the retry counter at least once.
-                        int ret = mOutput->stream->get_presentation_position(
-                                mOutput->stream, &position, &unused);
-                        if (ret == NO_ERROR && position != mOffloadUnderrunPosition) {
-                            running = true;
-                            mOffloadUnderrunPosition = position;
-                        }
+                    uint64_t position = 0;
+                    struct timespec unused;
+                    // The running check restarts the retry counter at least once.
+                    status_t ret = mOutput->stream->getPresentationPosition(&position, &unused);
+                    if (ret == NO_ERROR && position != mOffloadUnderrunPosition) {
+                        running = true;
+                        mOffloadUnderrunPosition = position;
+                    }
+                    if (ret == NO_ERROR) {
                         ALOGVV("underrun counter, running(%d): %lld vs %lld", running,
                                 (long long)position, (long long)mOffloadUnderrunPosition);
                     }
@@ -5644,7 +5603,7 @@
                         ALOGV("OffloadThread: BUFFER TIMEOUT: remove(%d) from active list",
                                 track->name());
                         tracksToRemove->add(track);
-                        // indicate to client process that the track was disabled because of underrun;
+                        // tell client process that the track was disabled because of underrun;
                         // it will then automatically call start() when data is available
                         track->disable();
                     }
@@ -5662,13 +5621,15 @@
     // before flush and then resume HW. This can happen in case of pause/flush/resume
     // if resume is received before pause is executed.
     if (!mStandby && (doHwPause || (mFlushPending && !mHwPaused && (count != 0)))) {
-        mOutput->stream->pause(mOutput->stream);
+        status_t result = mOutput->stream->pause();
+        ALOGE_IF(result != OK, "Error when pausing output stream: %d", result);
     }
     if (mFlushPending) {
         flushHw_l();
     }
     if (!mStandby && doHwResume) {
-        mOutput->stream->resume(mOutput->stream);
+        status_t result = mOutput->stream->resume();
+        ALOGE_IF(result != OK, "Error when resuming output stream: %d", result);
     }
 
     // remove all the tracks that need to be...
@@ -5904,6 +5865,7 @@
     MixerThread::cacheParameters_l();
 }
 
+
 // ----------------------------------------------------------------------------
 //      Record
 // ----------------------------------------------------------------------------
@@ -5919,8 +5881,8 @@
 #endif
                                          ) :
     ThreadBase(audioFlinger, id, outDevice, inDevice, RECORD, systemReady),
-    mInput(input), mActiveTracksGen(0), mRsmpInBuffer(NULL),
-    // mRsmpInFrames and mRsmpInFramesP2 are set by readInputParameters_l()
+    mInput(input), mRsmpInBuffer(NULL),
+    // mRsmpInFrames, mRsmpInFramesP2, and mRsmpInFramesOA are set by readInputParameters_l()
     mRsmpInRear(0)
 #ifdef TEE_SINK
     , mTeeSink(teeSink)
@@ -5972,7 +5934,8 @@
     if (initFastCapture) {
         // create a Pipe for FastCapture to write to, and for us and fast tracks to read from
         NBAIO_Format format = mInputSource->format();
-        size_t pipeFramesP2 = roundup(mSampleRate / 25);    // double-buffering of 20 ms each
+        // quadruple-buffering of 20 ms each; this ensures we can sleep for 20ms in RecordThread
+        size_t pipeFramesP2 = roundup(4 * FMS_20 * mSampleRate / 1000);
         size_t pipeSize = pipeFramesP2 * Format_frameSize(format);
         void *pipeBuffer;
         const sp<MemoryDealer> roHeap(readOnlyHeap());
@@ -6029,7 +5992,8 @@
         // start the fast capture
         mFastCapture->run("FastCapture", ANDROID_PRIORITY_URGENT_AUDIO);
         pid_t tid = mFastCapture->getTid();
-        sendPrioConfigEvent(getpid_cached, tid, kPriorityFastCapture);
+        sendPrioConfigEvent(getpid_cached, tid, kPriorityFastCapture, false);
+        stream()->setHalThreadPriority(kPriorityFastCapture);
 #ifdef AUDIO_WATCHDOG
         // FIXME
 #endif
@@ -6068,6 +6032,18 @@
     run(mThreadName, PRIORITY_URGENT_AUDIO);
 }
 
+void AudioFlinger::RecordThread::preExit()
+{
+    ALOGV("  preExit()");
+    Mutex::Autolock _l(mLock);
+    for (size_t i = 0; i < mTracks.size(); i++) {
+        sp<RecordTrack> track = mTracks[i];
+        track->invalidate();
+    }
+    mActiveTracks.clear();
+    mStartStopCond.broadcast();
+}
+
 bool AudioFlinger::RecordThread::threadLoop()
 {
     nsecs_t lastWarning = 0;
@@ -6076,25 +6052,9 @@
 
 reacquire_wakelock:
     sp<RecordTrack> activeTrack;
-    int activeTracksGen;
     {
         Mutex::Autolock _l(mLock);
-        size_t size = mActiveTracks.size();
-        activeTracksGen = mActiveTracksGen;
-        if (size > 0) {
-            // FIXME an arbitrary choice
-            activeTrack = mActiveTracks[0];
-            acquireWakeLock_l(activeTrack->uid());
-            if (size > 1) {
-                SortedVector<int> tmp;
-                for (size_t i = 0; i < size; i++) {
-                    tmp.add(mActiveTracks[i]->uid());
-                }
-                updateWakeLockUids_l(tmp);
-            }
-        } else {
-            acquireWakeLock_l(-1);
-        }
+        acquireWakeLock_l();
     }
 
     // used to request a deferred sleep, to be executed later while mutex is unlocked
@@ -6146,15 +6106,6 @@
                 goto reacquire_wakelock;
             }
 
-            if (mActiveTracksGen != activeTracksGen) {
-                activeTracksGen = mActiveTracksGen;
-                SortedVector<int> tmp;
-                for (size_t i = 0; i < size; i++) {
-                    tmp.add(mActiveTracks[i]->uid());
-                }
-                updateWakeLockUids_l(tmp);
-            }
-
             bool doBroadcast = false;
             bool allStopped = true;
             for (size_t i = 0; i < size; ) {
@@ -6167,7 +6118,6 @@
                     }
                     removeTrack_l(activeTrack);
                     mActiveTracks.remove(activeTrack);
-                    mActiveTracksGen++;
                     size--;
                     continue;
                 }
@@ -6177,7 +6127,6 @@
 
                 case TrackBase::PAUSING:
                     mActiveTracks.remove(activeTrack);
-                    mActiveTracksGen++;
                     doBroadcast = true;
                     size--;
                     continue;
@@ -6217,6 +6166,8 @@
                 }
             }
 
+            mActiveTracks.updatePowerState(this);
+
             if (allStopped) {
                 standbyIfNotAlreadyInStandby();
             }
@@ -6302,20 +6253,41 @@
         // If an NBAIO source is present, use it to read the normal capture's data
         if (mPipeSource != 0) {
             size_t framesToRead = mBufferSize / mFrameSize;
+            framesToRead = min(mRsmpInFramesOA - rear, mRsmpInFramesP2 / 2);
             framesRead = mPipeSource->read((uint8_t*)mRsmpInBuffer + rear * mFrameSize,
                     framesToRead);
-            if (framesRead == 0) {
-                // since pipe is non-blocking, simulate blocking input
-                sleepUs = (framesToRead * 1000000LL) / mSampleRate;
+            // since pipe is non-blocking, simulate blocking input by waiting for 1/2 of
+            // buffer size or at least for 20ms.
+            size_t sleepFrames = max(
+                    min(mPipeFramesP2, mRsmpInFramesP2) / 2, FMS_20 * mSampleRate / 1000);
+            if (framesRead <= (ssize_t) sleepFrames) {
+                sleepUs = (sleepFrames * 1000000LL) / mSampleRate;
+            }
+            if (framesRead < 0) {
+                status_t status = (status_t) framesRead;
+                switch (status) {
+                case OVERRUN:
+                    ALOGW("overrun on read from pipe");
+                    framesRead = 0;
+                    break;
+                case NEGOTIATE:
+                    ALOGE("re-negotiation is needed");
+                    framesRead = -1;  // Will cause an attempt to recover.
+                    break;
+                default:
+                    ALOGE("unknown error %d on read from pipe", status);
+                    break;
+                }
             }
         // otherwise use the HAL / AudioStreamIn directly
         } else {
             ATRACE_BEGIN("read");
-            ssize_t bytesRead = mInput->stream->read(mInput->stream,
-                    (uint8_t*)mRsmpInBuffer + rear * mFrameSize, mBufferSize);
+            size_t bytesRead;
+            status_t result = mInput->stream->read(
+                    (uint8_t*)mRsmpInBuffer + rear * mFrameSize, mBufferSize, &bytesRead);
             ATRACE_END();
-            if (bytesRead < 0) {
-                framesRead = bytesRead;
+            if (result < 0) {
+                framesRead = result;
             } else {
                 framesRead = bytesRead / mFrameSize;
             }
@@ -6327,10 +6299,9 @@
         mTimestamp.mTimeNs[ExtendedTimestamp::LOCATION_SERVER] = systemTime();
 
         // Update server timestamp with kernel stats
-        if (mInput->stream->get_capture_position != nullptr
-                && mPipeSource.get() == nullptr /* don't obtain for FastCapture, could block */) {
+        if (mPipeSource.get() == nullptr /* don't obtain for FastCapture, could block */) {
             int64_t position, time;
-            int ret = mInput->stream->get_capture_position(mInput->stream, &position, &time);
+            int ret = mInput->stream->getCapturePosition(&position, &time);
             if (ret == NO_ERROR) {
                 mTimestamp.mPosition[ExtendedTimestamp::LOCATION_KERNEL] = position;
                 mTimestamp.mTimeNs[ExtendedTimestamp::LOCATION_KERNEL] = time;
@@ -6495,7 +6466,6 @@
             track->invalidate();
         }
         mActiveTracks.clear();
-        mActiveTracksGen++;
         mStartStopCond.broadcast();
     }
 
@@ -6539,7 +6509,18 @@
             sq->end(false /*didModify*/);
         }
     }
-    mInput->stream->common.standby(&mInput->stream->common);
+    status_t result = mInput->stream->standby();
+    ALOGE_IF(result != OK, "Error when putting input stream into standby: %d", result);
+
+    // If going into standby, flush the pipe source.
+    if (mPipeSource.get() != nullptr) {
+        const ssize_t flushed = mPipeSource->flush();
+        if (flushed > 0) {
+            ALOGV("Input standby flushed PipeSource %zd frames", flushed);
+            mTimestamp.mPosition[ExtendedTimestamp::LOCATION_SERVER] += flushed;
+            mTimestamp.mTimeNs[ExtendedTimestamp::LOCATION_SERVER] = systemTime();
+        }
+    }
 }
 
 // RecordThread::createRecordTrack_l() must be called with AudioFlinger::mLock held
@@ -6551,10 +6532,11 @@
         size_t *pFrameCount,
         audio_session_t sessionId,
         size_t *notificationFrames,
-        int uid,
+        uid_t uid,
         audio_input_flags_t *flags,
         pid_t tid,
-        status_t *status)
+        status_t *status,
+        audio_port_handle_t portId)
 {
     size_t frameCount = *pFrameCount;
     sp<RecordTrack> track;
@@ -6662,7 +6644,7 @@
 
         track = new RecordTrack(this, client, sampleRate,
                       format, channelMask, frameCount, NULL, sessionId, uid,
-                      *flags, TrackBase::TYPE_DEFAULT);
+                      *flags, TrackBase::TYPE_DEFAULT, portId);
 
         lStatus = track->initCheck();
         if (lStatus != NO_ERROR) {
@@ -6682,7 +6664,7 @@
             pid_t callingPid = IPCThreadState::self()->getCallingPid();
             // we don't have CAP_SYS_NICE, nor do we want to have it as it's too powerful,
             // so ask activity manager to do this on our behalf
-            sendPrioConfigEvent_l(callingPid, tid, kPriorityAudioApp);
+            sendPrioConfigEvent_l(callingPid, tid, kPriorityAudioApp, true);
         }
     }
 
@@ -6738,7 +6720,6 @@
         //      or using a separate command thread
         recordTrack->mState = TrackBase::STARTING_1;
         mActiveTracks.add(recordTrack);
-        mActiveTracksGen++;
         status_t status = NO_ERROR;
         if (recordTrack->isExternalTrack()) {
             mLock.unlock();
@@ -6747,7 +6728,6 @@
             // FIXME should verify that recordTrack is still in mActiveTracks
             if (status != NO_ERROR) {
                 mActiveTracks.remove(recordTrack);
-                mActiveTracksGen++;
                 recordTrack->clearSyncStartEvent();
                 ALOGV("RecordThread::start error %d", status);
                 return status;
@@ -6882,6 +6862,10 @@
 
     dumpBase(fd, args);
 
+    AudioStreamIn *input = mInput;
+    audio_input_flags_t flags = input != NULL ? input->flags : AUDIO_INPUT_FLAG_NONE;
+    dprintf(fd, "  AudioStreamIn: %p flags %#x (%s)\n",
+            input, flags, inputFlagsToString(flags).c_str());
     if (mActiveTracks.size() == 0) {
         dprintf(fd, "  No active record clients\n");
     }
@@ -7040,252 +7024,6 @@
     buffer->frameCount = 0;
 }
 
-AudioFlinger::RecordThread::RecordBufferConverter::RecordBufferConverter(
-        audio_channel_mask_t srcChannelMask, audio_format_t srcFormat,
-        uint32_t srcSampleRate,
-        audio_channel_mask_t dstChannelMask, audio_format_t dstFormat,
-        uint32_t dstSampleRate) :
-            mSrcChannelMask(AUDIO_CHANNEL_INVALID), // updateParameters will set following vars
-            // mSrcFormat
-            // mSrcSampleRate
-            // mDstChannelMask
-            // mDstFormat
-            // mDstSampleRate
-            // mSrcChannelCount
-            // mDstChannelCount
-            // mDstFrameSize
-            mBuf(NULL), mBufFrames(0), mBufFrameSize(0),
-            mResampler(NULL),
-            mIsLegacyDownmix(false),
-            mIsLegacyUpmix(false),
-            mRequiresFloat(false),
-            mInputConverterProvider(NULL)
-{
-    (void)updateParameters(srcChannelMask, srcFormat, srcSampleRate,
-            dstChannelMask, dstFormat, dstSampleRate);
-}
-
-AudioFlinger::RecordThread::RecordBufferConverter::~RecordBufferConverter() {
-    free(mBuf);
-    delete mResampler;
-    delete mInputConverterProvider;
-}
-
-size_t AudioFlinger::RecordThread::RecordBufferConverter::convert(void *dst,
-        AudioBufferProvider *provider, size_t frames)
-{
-    if (mInputConverterProvider != NULL) {
-        mInputConverterProvider->setBufferProvider(provider);
-        provider = mInputConverterProvider;
-    }
-
-    if (mResampler == NULL) {
-        ALOGVV("NO RESAMPLING sampleRate:%u mSrcFormat:%#x mDstFormat:%#x",
-                mSrcSampleRate, mSrcFormat, mDstFormat);
-
-        AudioBufferProvider::Buffer buffer;
-        for (size_t i = frames; i > 0; ) {
-            buffer.frameCount = i;
-            status_t status = provider->getNextBuffer(&buffer);
-            if (status != OK || buffer.frameCount == 0) {
-                frames -= i; // cannot fill request.
-                break;
-            }
-            // format convert to destination buffer
-            convertNoResampler(dst, buffer.raw, buffer.frameCount);
-
-            dst = (int8_t*)dst + buffer.frameCount * mDstFrameSize;
-            i -= buffer.frameCount;
-            provider->releaseBuffer(&buffer);
-        }
-    } else {
-         ALOGVV("RESAMPLING mSrcSampleRate:%u mDstSampleRate:%u mSrcFormat:%#x mDstFormat:%#x",
-                 mSrcSampleRate, mDstSampleRate, mSrcFormat, mDstFormat);
-
-         // reallocate buffer if needed
-         if (mBufFrameSize != 0 && mBufFrames < frames) {
-             free(mBuf);
-             mBufFrames = frames;
-             (void)posix_memalign(&mBuf, 32, mBufFrames * mBufFrameSize);
-         }
-        // resampler accumulates, but we only have one source track
-        memset(mBuf, 0, frames * mBufFrameSize);
-        frames = mResampler->resample((int32_t*)mBuf, frames, provider);
-        // format convert to destination buffer
-        convertResampler(dst, mBuf, frames);
-    }
-    return frames;
-}
-
-status_t AudioFlinger::RecordThread::RecordBufferConverter::updateParameters(
-        audio_channel_mask_t srcChannelMask, audio_format_t srcFormat,
-        uint32_t srcSampleRate,
-        audio_channel_mask_t dstChannelMask, audio_format_t dstFormat,
-        uint32_t dstSampleRate)
-{
-    // quick evaluation if there is any change.
-    if (mSrcFormat == srcFormat
-            && mSrcChannelMask == srcChannelMask
-            && mSrcSampleRate == srcSampleRate
-            && mDstFormat == dstFormat
-            && mDstChannelMask == dstChannelMask
-            && mDstSampleRate == dstSampleRate) {
-        return NO_ERROR;
-    }
-
-    ALOGV("RecordBufferConverter updateParameters srcMask:%#x dstMask:%#x"
-            "  srcFormat:%#x dstFormat:%#x  srcRate:%u dstRate:%u",
-            srcChannelMask, dstChannelMask, srcFormat, dstFormat, srcSampleRate, dstSampleRate);
-    const bool valid =
-            audio_is_input_channel(srcChannelMask)
-            && audio_is_input_channel(dstChannelMask)
-            && audio_is_valid_format(srcFormat) && audio_is_linear_pcm(srcFormat)
-            && audio_is_valid_format(dstFormat) && audio_is_linear_pcm(dstFormat)
-            && (srcSampleRate <= dstSampleRate * AUDIO_RESAMPLER_DOWN_RATIO_MAX)
-            ; // no upsampling checks for now
-    if (!valid) {
-        return BAD_VALUE;
-    }
-
-    mSrcFormat = srcFormat;
-    mSrcChannelMask = srcChannelMask;
-    mSrcSampleRate = srcSampleRate;
-    mDstFormat = dstFormat;
-    mDstChannelMask = dstChannelMask;
-    mDstSampleRate = dstSampleRate;
-
-    // compute derived parameters
-    mSrcChannelCount = audio_channel_count_from_in_mask(srcChannelMask);
-    mDstChannelCount = audio_channel_count_from_in_mask(dstChannelMask);
-    mDstFrameSize = mDstChannelCount * audio_bytes_per_sample(mDstFormat);
-
-    // do we need to resample?
-    delete mResampler;
-    mResampler = NULL;
-    if (mSrcSampleRate != mDstSampleRate) {
-        mResampler = AudioResampler::create(AUDIO_FORMAT_PCM_FLOAT,
-                mSrcChannelCount, mDstSampleRate);
-        mResampler->setSampleRate(mSrcSampleRate);
-        mResampler->setVolume(AudioMixer::UNITY_GAIN_FLOAT, AudioMixer::UNITY_GAIN_FLOAT);
-    }
-
-    // are we running legacy channel conversion modes?
-    mIsLegacyDownmix = (mSrcChannelMask == AUDIO_CHANNEL_IN_STEREO
-                            || mSrcChannelMask == AUDIO_CHANNEL_IN_FRONT_BACK)
-                   && mDstChannelMask == AUDIO_CHANNEL_IN_MONO;
-    mIsLegacyUpmix = mSrcChannelMask == AUDIO_CHANNEL_IN_MONO
-                   && (mDstChannelMask == AUDIO_CHANNEL_IN_STEREO
-                            || mDstChannelMask == AUDIO_CHANNEL_IN_FRONT_BACK);
-
-    // do we need to process in float?
-    mRequiresFloat = mResampler != NULL || mIsLegacyDownmix || mIsLegacyUpmix;
-
-    // do we need a staging buffer to convert for destination (we can still optimize this)?
-    // we use mBufFrameSize > 0 to indicate both frame size as well as buffer necessity
-    if (mResampler != NULL) {
-        mBufFrameSize = max(mSrcChannelCount, FCC_2)
-                * audio_bytes_per_sample(AUDIO_FORMAT_PCM_FLOAT);
-    } else if (mIsLegacyUpmix || mIsLegacyDownmix) { // legacy modes always float
-        mBufFrameSize = mDstChannelCount * audio_bytes_per_sample(AUDIO_FORMAT_PCM_FLOAT);
-    } else if (mSrcChannelMask != mDstChannelMask && mDstFormat != mSrcFormat) {
-        mBufFrameSize = mDstChannelCount * audio_bytes_per_sample(mSrcFormat);
-    } else {
-        mBufFrameSize = 0;
-    }
-    mBufFrames = 0; // force the buffer to be resized.
-
-    // do we need an input converter buffer provider to give us float?
-    delete mInputConverterProvider;
-    mInputConverterProvider = NULL;
-    if (mRequiresFloat && mSrcFormat != AUDIO_FORMAT_PCM_FLOAT) {
-        mInputConverterProvider = new ReformatBufferProvider(
-                audio_channel_count_from_in_mask(mSrcChannelMask),
-                mSrcFormat,
-                AUDIO_FORMAT_PCM_FLOAT,
-                256 /* provider buffer frame count */);
-    }
-
-    // do we need a remixer to do channel mask conversion
-    if (!mIsLegacyDownmix && !mIsLegacyUpmix && mSrcChannelMask != mDstChannelMask) {
-        (void) memcpy_by_index_array_initialization_from_channel_mask(
-                mIdxAry, ARRAY_SIZE(mIdxAry), mDstChannelMask, mSrcChannelMask);
-    }
-    return NO_ERROR;
-}
-
-void AudioFlinger::RecordThread::RecordBufferConverter::convertNoResampler(
-        void *dst, const void *src, size_t frames)
-{
-    // src is native type unless there is legacy upmix or downmix, whereupon it is float.
-    if (mBufFrameSize != 0 && mBufFrames < frames) {
-        free(mBuf);
-        mBufFrames = frames;
-        (void)posix_memalign(&mBuf, 32, mBufFrames * mBufFrameSize);
-    }
-    // do we need to do legacy upmix and downmix?
-    if (mIsLegacyUpmix || mIsLegacyDownmix) {
-        void *dstBuf = mBuf != NULL ? mBuf : dst;
-        if (mIsLegacyUpmix) {
-            upmix_to_stereo_float_from_mono_float((float *)dstBuf,
-                    (const float *)src, frames);
-        } else /*mIsLegacyDownmix */ {
-            downmix_to_mono_float_from_stereo_float((float *)dstBuf,
-                    (const float *)src, frames);
-        }
-        if (mBuf != NULL) {
-            memcpy_by_audio_format(dst, mDstFormat, mBuf, AUDIO_FORMAT_PCM_FLOAT,
-                    frames * mDstChannelCount);
-        }
-        return;
-    }
-    // do we need to do channel mask conversion?
-    if (mSrcChannelMask != mDstChannelMask) {
-        void *dstBuf = mBuf != NULL ? mBuf : dst;
-        memcpy_by_index_array(dstBuf, mDstChannelCount,
-                src, mSrcChannelCount, mIdxAry, audio_bytes_per_sample(mSrcFormat), frames);
-        if (dstBuf == dst) {
-            return; // format is the same
-        }
-    }
-    // convert to destination buffer
-    const void *convertBuf = mBuf != NULL ? mBuf : src;
-    memcpy_by_audio_format(dst, mDstFormat, convertBuf, mSrcFormat,
-            frames * mDstChannelCount);
-}
-
-void AudioFlinger::RecordThread::RecordBufferConverter::convertResampler(
-        void *dst, /*not-a-const*/ void *src, size_t frames)
-{
-    // src buffer format is ALWAYS float when entering this routine
-    if (mIsLegacyUpmix) {
-        ; // mono to stereo already handled by resampler
-    } else if (mIsLegacyDownmix
-            || (mSrcChannelMask == mDstChannelMask && mSrcChannelCount == 1)) {
-        // the resampler outputs stereo for mono input channel (a feature?)
-        // must convert to mono
-        downmix_to_mono_float_from_stereo_float((float *)src,
-                (const float *)src, frames);
-    } else if (mSrcChannelMask != mDstChannelMask) {
-        // convert to mono channel again for channel mask conversion (could be skipped
-        // with further optimization).
-        if (mSrcChannelCount == 1) {
-            downmix_to_mono_float_from_stereo_float((float *)src,
-                (const float *)src, frames);
-        }
-        // convert to destination format (in place, OK as float is larger than other types)
-        if (mDstFormat != AUDIO_FORMAT_PCM_FLOAT) {
-            memcpy_by_audio_format(src, mDstFormat, src, AUDIO_FORMAT_PCM_FLOAT,
-                    frames * mSrcChannelCount);
-        }
-        // channel convert and save to dst
-        memcpy_by_index_array(dst, mDstChannelCount,
-                src, mSrcChannelCount, mIdxAry, audio_bytes_per_sample(mDstFormat), frames);
-        return;
-    }
-    // convert to destination format and save to dst
-    memcpy_by_audio_format(dst, mDstFormat, src, AUDIO_FORMAT_PCM_FLOAT,
-            frames * mDstChannelCount);
-}
 
 bool AudioFlinger::RecordThread::checkForNewParameter_l(const String8& keyValuePair,
                                                         status_t& status)
@@ -7382,22 +7120,22 @@
     }
 
     if (status == NO_ERROR) {
-        status = mInput->stream->common.set_parameters(&mInput->stream->common,
-                keyValuePair.string());
+        status = mInput->stream->setParameters(keyValuePair);
         if (status == INVALID_OPERATION) {
             inputStandBy();
-            status = mInput->stream->common.set_parameters(&mInput->stream->common,
-                    keyValuePair.string());
+            status = mInput->stream->setParameters(keyValuePair);
         }
         if (reconfig) {
-            if (status == BAD_VALUE &&
-                audio_is_linear_pcm(mInput->stream->common.get_format(&mInput->stream->common)) &&
-                audio_is_linear_pcm(reqFormat) &&
-                (mInput->stream->common.get_sample_rate(&mInput->stream->common)
-                        <= (AUDIO_RESAMPLER_DOWN_RATIO_MAX * samplingRate)) &&
-                audio_channel_count_from_in_mask(
-                        mInput->stream->common.get_channels(&mInput->stream->common)) <= FCC_8) {
-                status = NO_ERROR;
+            if (status == BAD_VALUE) {
+                uint32_t sRate;
+                audio_channel_mask_t channelMask;
+                audio_format_t format;
+                if (mInput->stream->getAudioProperties(&sRate, &channelMask, &format) == OK &&
+                        audio_is_linear_pcm(format) && audio_is_linear_pcm(reqFormat) &&
+                        sRate <= (AUDIO_RESAMPLER_DOWN_RATIO_MAX * samplingRate) &&
+                        audio_channel_count_from_in_mask(channelMask) <= FCC_8) {
+                    status = NO_ERROR;
+                }
             }
             if (status == NO_ERROR) {
                 readInputParameters_l();
@@ -7412,14 +7150,13 @@
 String8 AudioFlinger::RecordThread::getParameters(const String8& keys)
 {
     Mutex::Autolock _l(mLock);
-    if (initCheck() != NO_ERROR) {
-        return String8();
+    if (initCheck() == NO_ERROR) {
+        String8 out_s8;
+        if (mInput->stream->getParameters(keys, &out_s8) == OK) {
+            return out_s8;
+        }
     }
-
-    char *s = mInput->stream->common.get_parameters(&mInput->stream->common, keys.string());
-    const String8 out_s8(s);
-    free(s);
-    return out_s8;
+    return String8();
 }
 
 void AudioFlinger::RecordThread::ioConfigChanged(audio_io_config_event event, pid_t pid) {
@@ -7448,19 +7185,16 @@
 
 void AudioFlinger::RecordThread::readInputParameters_l()
 {
-    mSampleRate = mInput->stream->common.get_sample_rate(&mInput->stream->common);
-    mChannelMask = mInput->stream->common.get_channels(&mInput->stream->common);
+    status_t result = mInput->stream->getAudioProperties(&mSampleRate, &mChannelMask, &mHALFormat);
+    LOG_ALWAYS_FATAL_IF(result != OK, "Error retrieving audio properties from HAL: %d", result);
     mChannelCount = audio_channel_count_from_in_mask(mChannelMask);
-    if (mChannelCount > FCC_8) {
-        ALOGE("HAL channel count %d > %d", mChannelCount, FCC_8);
-    }
-    mHALFormat = mInput->stream->common.get_format(&mInput->stream->common);
+    LOG_ALWAYS_FATAL_IF(mChannelCount > FCC_8, "HAL channel count %d > %d", mChannelCount, FCC_8);
     mFormat = mHALFormat;
-    if (!audio_is_linear_pcm(mFormat)) {
-        ALOGE("HAL format %#x is not linear pcm", mFormat);
-    }
-    mFrameSize = audio_stream_in_frame_size(mInput->stream);
-    mBufferSize = mInput->stream->common.get_buffer_size(&mInput->stream->common);
+    LOG_ALWAYS_FATAL_IF(!audio_is_linear_pcm(mFormat), "HAL format %#x is not linear pcm", mFormat);
+    result = mInput->stream->getFrameSize(&mFrameSize);
+    LOG_ALWAYS_FATAL_IF(result != OK, "Error retrieving frame size from HAL: %d", result);
+    result = mInput->stream->getBufferSize(&mBufferSize);
+    LOG_ALWAYS_FATAL_IF(result != OK, "Error retrieving buffer size from HAL: %d", result);
     mFrameCount = mBufferSize / mFrameSize;
     // This is the formula for calculating the temporary buffer size.
     // With 7 HAL buffers, we can guarantee ability to down-sample the input by ratio of 6:1 to
@@ -7483,9 +7217,10 @@
     // The current value is higher than necessary.  However it should not add to latency.
 
     // Over-allocate beyond mRsmpInFramesP2 to permit a HAL read past end of buffer
-    size_t bufferSize = (mRsmpInFramesP2 + mFrameCount - 1) * mFrameSize;
-    (void)posix_memalign(&mRsmpInBuffer, 32, bufferSize);
-    memset(mRsmpInBuffer, 0, bufferSize); // if posix_memalign fails, will segv here.
+    mRsmpInFramesOA = mRsmpInFramesP2 + mFrameCount - 1;
+    (void)posix_memalign(&mRsmpInBuffer, 32, mRsmpInFramesOA * mFrameSize);
+    // if posix_memalign fails, will segv here.
+    memset(mRsmpInBuffer, 0, mRsmpInFramesOA * mFrameSize);
 
     // AudioRecord mSampleRate and mChannelCount are constant due to AudioRecord API constraints.
     // But if thread's mSampleRate or mChannelCount changes, how will that affect active tracks?
@@ -7494,11 +7229,11 @@
 uint32_t AudioFlinger::RecordThread::getInputFramesLost()
 {
     Mutex::Autolock _l(mLock);
-    if (initCheck() != NO_ERROR) {
-        return 0;
+    uint32_t result;
+    if (initCheck() == NO_ERROR && mInput->stream->getInputFramesLost(&result) == OK) {
+        return result;
     }
-
-    return mInput->stream->get_input_frames_lost(mInput->stream);
+    return 0;
 }
 
 // hasAudioSession_l() must be called with ThreadBase::mLock held
@@ -7545,12 +7280,12 @@
 }
 
 // this method must always be called either with ThreadBase mLock held or inside the thread loop
-audio_stream_t* AudioFlinger::RecordThread::stream() const
+sp<StreamHalInterface> AudioFlinger::RecordThread::stream() const
 {
     if (mInput == NULL) {
         return NULL;
     }
-    return &mInput->stream->common;
+    return mInput->stream;
 }
 
 status_t AudioFlinger::RecordThread::addEffectChain_l(const sp<EffectChain>& chain)
@@ -7620,14 +7355,13 @@
         }
     }
 
-    if (mInput->audioHwDev->version() >= AUDIO_DEVICE_API_VERSION_3_0) {
-        audio_hw_device_t *hwDevice = mInput->audioHwDev->hwDevice();
-        status = hwDevice->create_audio_patch(hwDevice,
-                                               patch->num_sources,
-                                               patch->sources,
-                                               patch->num_sinks,
-                                               patch->sinks,
-                                               handle);
+    if (mInput->audioHwDev->supportsAudioPatches()) {
+        sp<DeviceHalInterface> hwDevice = mInput->audioHwDev->hwDevice();
+        status = hwDevice->createAudioPatch(patch->num_sources,
+                                            patch->sources,
+                                            patch->num_sinks,
+                                            patch->sinks,
+                                            handle);
     } else {
         char *address;
         if (strcmp(patch->sources[0].ext.device.address, "") != 0) {
@@ -7639,12 +7373,11 @@
         }
         AudioParameter param = AudioParameter(String8(address));
         free(address);
-        param.addInt(String8(AUDIO_PARAMETER_STREAM_ROUTING),
+        param.addInt(String8(AudioParameter::keyRouting),
                      (int)patch->sources[0].ext.device.type);
-        param.addInt(String8(AUDIO_PARAMETER_STREAM_INPUT_SOURCE),
+        param.addInt(String8(AudioParameter::keyInputSource),
                                          (int)patch->sinks[0].ext.mix.usecase.source);
-        status = mInput->stream->common.set_parameters(&mInput->stream->common,
-                param.toString().string());
+        status = mInput->stream->setParameters(param.toString());
         *handle = AUDIO_PATCH_HANDLE_NONE;
     }
 
@@ -7662,14 +7395,13 @@
 
     mInDevice = AUDIO_DEVICE_NONE;
 
-    if (mInput->audioHwDev->version() >= AUDIO_DEVICE_API_VERSION_3_0) {
-        audio_hw_device_t *hwDevice = mInput->audioHwDev->hwDevice();
-        status = hwDevice->release_audio_patch(hwDevice, handle);
+    if (mInput->audioHwDev->supportsAudioPatches()) {
+        sp<DeviceHalInterface> hwDevice = mInput->audioHwDev->hwDevice();
+        status = hwDevice->releaseAudioPatch(handle);
     } else {
         AudioParameter param;
-        param.addInt(String8(AUDIO_PARAMETER_STREAM_ROUTING), 0);
-        status = mInput->stream->common.set_parameters(&mInput->stream->common,
-                param.toString().string());
+        param.addInt(String8(AudioParameter::keyRouting), 0);
+        status = mInput->stream->setParameters(param.toString());
     }
     return status;
 }
@@ -7694,4 +7426,909 @@
     config->ext.mix.usecase.source = mAudioSource;
 }
 
+// ----------------------------------------------------------------------------
+//      Mmap
+// ----------------------------------------------------------------------------
+
+AudioFlinger::MmapThreadHandle::MmapThreadHandle(const sp<MmapThread>& thread)
+    : mThread(thread)
+{
+}
+
+AudioFlinger::MmapThreadHandle::~MmapThreadHandle()
+{
+    MmapThread *thread = mThread.get();
+    // clear our strong reference before disconnecting the thread: the last strong reference
+    // will be removed when closeInput/closeOutput is executed upon call from audio policy manager
+    // and the thread removed from mMMapThreads list causing the thread destruction.
+    mThread.clear();
+    if (thread != nullptr) {
+        thread->disconnect();
+    }
+}
+
+status_t AudioFlinger::MmapThreadHandle::createMmapBuffer(int32_t minSizeFrames,
+                                  struct audio_mmap_buffer_info *info)
+{
+    if (mThread == 0) {
+        return NO_INIT;
+    }
+    return mThread->createMmapBuffer(minSizeFrames, info);
+}
+
+status_t AudioFlinger::MmapThreadHandle::getMmapPosition(struct audio_mmap_position *position)
+{
+    if (mThread == 0) {
+        return NO_INIT;
+    }
+    return mThread->getMmapPosition(position);
+}
+
+status_t AudioFlinger::MmapThreadHandle::start(const MmapStreamInterface::Client& client,
+        audio_port_handle_t *handle)
+
+{
+    if (mThread == 0) {
+        return NO_INIT;
+    }
+    return mThread->start(client, handle);
+}
+
+status_t AudioFlinger::MmapThreadHandle::stop(audio_port_handle_t handle)
+{
+    if (mThread == 0) {
+        return NO_INIT;
+    }
+    return mThread->stop(handle);
+}
+
+status_t AudioFlinger::MmapThreadHandle::standby()
+{
+    if (mThread == 0) {
+        return NO_INIT;
+    }
+    return mThread->standby();
+}
+
+
+AudioFlinger::MmapThread::MmapThread(
+        const sp<AudioFlinger>& audioFlinger, audio_io_handle_t id,
+        AudioHwDevice *hwDev, sp<StreamHalInterface> stream,
+        audio_devices_t outDevice, audio_devices_t inDevice, bool systemReady)
+    : ThreadBase(audioFlinger, id, outDevice, inDevice, MMAP, systemReady),
+      mHalStream(stream), mHalDevice(hwDev->hwDevice()), mAudioHwDev(hwDev)
+{
+    mStandby = true;
+    readHalParameters_l();
+}
+
+AudioFlinger::MmapThread::~MmapThread()
+{
+    releaseWakeLock_l();
+}
+
+void AudioFlinger::MmapThread::onFirstRef()
+{
+    run(mThreadName, ANDROID_PRIORITY_URGENT_AUDIO);
+}
+
+void AudioFlinger::MmapThread::disconnect()
+{
+    for (const sp<MmapTrack> &t : mActiveTracks) {
+        stop(t->portId());
+    }
+    // this will cause the destruction of this thread.
+    if (isOutput()) {
+        AudioSystem::releaseOutput(mId, streamType(), mSessionId);
+    } else {
+        AudioSystem::releaseInput(mId, mSessionId);
+    }
+}
+
+
+void AudioFlinger::MmapThread::configure(const audio_attributes_t *attr,
+                                                audio_stream_type_t streamType __unused,
+                                                audio_session_t sessionId,
+                                                const sp<MmapStreamCallback>& callback,
+                                                audio_port_handle_t portId)
+{
+    mAttr = *attr;
+    mSessionId = sessionId;
+    mCallback = callback;
+    mPortId = portId;
+}
+
+status_t AudioFlinger::MmapThread::createMmapBuffer(int32_t minSizeFrames,
+                                  struct audio_mmap_buffer_info *info)
+{
+    if (mHalStream == 0) {
+        return NO_INIT;
+    }
+    mStandby = true;
+    acquireWakeLock();
+    return mHalStream->createMmapBuffer(minSizeFrames, info);
+}
+
+status_t AudioFlinger::MmapThread::getMmapPosition(struct audio_mmap_position *position)
+{
+    if (mHalStream == 0) {
+        return NO_INIT;
+    }
+    return mHalStream->getMmapPosition(position);
+}
+
+status_t AudioFlinger::MmapThread::start(const MmapStreamInterface::Client& client,
+                                         audio_port_handle_t *handle)
+{
+    ALOGV("%s clientUid %d mStandby %d", __FUNCTION__, client.clientUid, mStandby);
+    if (mHalStream == 0) {
+        return NO_INIT;
+    }
+
+    status_t ret;
+    audio_session_t sessionId;
+    audio_port_handle_t portId;
+
+    if (mActiveTracks.size() == 0) {
+        // for the first track, reuse portId and session allocated when the stream was opened
+        mHalStream->start();
+        portId = mPortId;
+        sessionId = mSessionId;
+        mStandby = false;
+    } else {
+        // for other tracks than first one, get a new port ID from APM.
+        sessionId = (audio_session_t)mAudioFlinger->newAudioUniqueId(AUDIO_UNIQUE_ID_USE_SESSION);
+        audio_io_handle_t io;
+        if (isOutput()) {
+            audio_config_t config = AUDIO_CONFIG_INITIALIZER;
+            config.sample_rate = mSampleRate;
+            config.channel_mask = mChannelMask;
+            config.format = mFormat;
+            audio_stream_type_t stream = streamType();
+            audio_output_flags_t flags =
+                    (audio_output_flags_t)(AUDIO_OUTPUT_FLAG_MMAP_NOIRQ | AUDIO_OUTPUT_FLAG_DIRECT);
+            ret = AudioSystem::getOutputForAttr(&mAttr, &io,
+                                                sessionId,
+                                                &stream,
+                                                client.clientUid,
+                                                &config,
+                                                flags,
+                                                AUDIO_PORT_HANDLE_NONE,
+                                                &portId);
+        } else {
+            audio_config_base_t config;
+            config.sample_rate = mSampleRate;
+            config.channel_mask = mChannelMask;
+            config.format = mFormat;
+            ret = AudioSystem::getInputForAttr(&mAttr, &io,
+                                                  sessionId,
+                                                  client.clientPid,
+                                                  client.clientUid,
+                                                  &config,
+                                                  AUDIO_INPUT_FLAG_MMAP_NOIRQ,
+                                                  AUDIO_PORT_HANDLE_NONE,
+                                                  &portId);
+        }
+        // APM should not chose a different input or output stream for the same set of attributes
+        // and audo configuration
+        if (ret != NO_ERROR || io != mId) {
+            ALOGE("%s: error getting output or input from APM (error %d, io %d expected io %d)",
+                  __FUNCTION__, ret, io, mId);
+            return BAD_VALUE;
+        }
+    }
+
+    if (isOutput()) {
+        ret = AudioSystem::startOutput(mId, streamType(), sessionId);
+    } else {
+        ret = AudioSystem::startInput(mId, sessionId);
+    }
+
+    // abort if start is rejected by audio policy manager
+    if (ret != NO_ERROR) {
+        if (mActiveTracks.size() != 0) {
+            if (isOutput()) {
+                AudioSystem::releaseOutput(mId, streamType(), sessionId);
+            } else {
+                AudioSystem::releaseInput(mId, sessionId);
+            }
+        } else {
+            mHalStream->stop();
+        }
+        return PERMISSION_DENIED;
+    }
+
+    sp<MmapTrack> track = new MmapTrack(this, mSampleRate, mFormat, mChannelMask, sessionId,
+                                        client.clientUid, portId);
+
+    mActiveTracks.add(track);
+    sp<EffectChain> chain = getEffectChain_l(sessionId);
+    if (chain != 0) {
+        chain->setStrategy(AudioSystem::getStrategyForStream(streamType()));
+        chain->incTrackCnt();
+        chain->incActiveTrackCnt();
+    }
+
+    *handle = portId;
+
+    broadcast_l();
+
+    ALOGV("%s DONE handle %d stream %p", __FUNCTION__, portId, mHalStream.get());
+
+    return NO_ERROR;
+}
+
+status_t AudioFlinger::MmapThread::stop(audio_port_handle_t handle)
+{
+    ALOGV("%s handle %d", __FUNCTION__, handle);
+
+    if (mHalStream == 0) {
+        return NO_INIT;
+    }
+
+    sp<MmapTrack> track;
+    for (const sp<MmapTrack> &t : mActiveTracks) {
+        if (handle == t->portId()) {
+            track = t;
+            break;
+        }
+    }
+    if (track == 0) {
+        return BAD_VALUE;
+    }
+
+    mActiveTracks.remove(track);
+
+    if (isOutput()) {
+        AudioSystem::stopOutput(mId, streamType(), track->sessionId());
+        if (mActiveTracks.size() != 0) {
+            AudioSystem::releaseOutput(mId, streamType(), track->sessionId());
+        }
+    } else {
+        AudioSystem::stopInput(mId, track->sessionId());
+        if (mActiveTracks.size() != 0) {
+            AudioSystem::releaseInput(mId, track->sessionId());
+        }
+    }
+
+    sp<EffectChain> chain = getEffectChain_l(track->sessionId());
+    if (chain != 0) {
+        chain->decActiveTrackCnt();
+        chain->decTrackCnt();
+    }
+
+    broadcast_l();
+
+    if (mActiveTracks.size() == 0) {
+        mHalStream->stop();
+    }
+    return NO_ERROR;
+}
+
+status_t AudioFlinger::MmapThread::standby()
+{
+    ALOGV("%s", __FUNCTION__);
+
+    if (mHalStream == 0) {
+        return NO_INIT;
+    }
+    if (mActiveTracks.size() != 0) {
+        return INVALID_OPERATION;
+    }
+    mHalStream->standby();
+    mStandby = true;
+    releaseWakeLock();
+    return NO_ERROR;
+}
+
+
+void AudioFlinger::MmapThread::readHalParameters_l()
+{
+    status_t result = mHalStream->getAudioProperties(&mSampleRate, &mChannelMask, &mHALFormat);
+    LOG_ALWAYS_FATAL_IF(result != OK, "Error retrieving audio properties from HAL: %d", result);
+    mFormat = mHALFormat;
+    LOG_ALWAYS_FATAL_IF(!audio_is_linear_pcm(mFormat), "HAL format %#x is not linear pcm", mFormat);
+    result = mHalStream->getFrameSize(&mFrameSize);
+    LOG_ALWAYS_FATAL_IF(result != OK, "Error retrieving frame size from HAL: %d", result);
+    result = mHalStream->getBufferSize(&mBufferSize);
+    LOG_ALWAYS_FATAL_IF(result != OK, "Error retrieving buffer size from HAL: %d", result);
+    mFrameCount = mBufferSize / mFrameSize;
+}
+
+bool AudioFlinger::MmapThread::threadLoop()
+{
+    checkSilentMode_l();
+
+    const String8 myName(String8::format("thread %p type %d TID %d", this, mType, gettid()));
+
+    while (!exitPending())
+    {
+        Mutex::Autolock _l(mLock);
+        Vector< sp<EffectChain> > effectChains;
+
+        if (mSignalPending) {
+            // A signal was raised while we were unlocked
+            mSignalPending = false;
+        } else {
+            if (mConfigEvents.isEmpty()) {
+                // we're about to wait, flush the binder command buffer
+                IPCThreadState::self()->flushCommands();
+
+                if (exitPending()) {
+                    break;
+                }
+
+                // wait until we have something to do...
+                ALOGV("%s going to sleep", myName.string());
+                mWaitWorkCV.wait(mLock);
+                ALOGV("%s waking up", myName.string());
+
+                checkSilentMode_l();
+
+                continue;
+            }
+        }
+
+        processConfigEvents_l();
+
+        processVolume_l();
+
+        checkInvalidTracks_l();
+
+        mActiveTracks.updatePowerState(this);
+
+        lockEffectChains_l(effectChains);
+        for (size_t i = 0; i < effectChains.size(); i ++) {
+            effectChains[i]->process_l();
+        }
+        // enable changes in effect chain
+        unlockEffectChains(effectChains);
+        // Effect chains will be actually deleted here if they were removed from
+        // mEffectChains list during mixing or effects processing
+    }
+
+    threadLoop_exit();
+
+    if (!mStandby) {
+        threadLoop_standby();
+        mStandby = true;
+    }
+
+    ALOGV("Thread %p type %d exiting", this, mType);
+    return false;
+}
+
+// checkForNewParameter_l() must be called with ThreadBase::mLock held
+bool AudioFlinger::MmapThread::checkForNewParameter_l(const String8& keyValuePair,
+                                                              status_t& status)
+{
+    AudioParameter param = AudioParameter(keyValuePair);
+    int value;
+    if (param.getInt(String8(AudioParameter::keyRouting), value) == NO_ERROR) {
+        // forward device change to effects that have requested to be
+        // aware of attached audio device.
+        if (value != AUDIO_DEVICE_NONE) {
+            mOutDevice = value;
+            for (size_t i = 0; i < mEffectChains.size(); i++) {
+                mEffectChains[i]->setDevice_l(mOutDevice);
+            }
+        }
+    }
+    status = mHalStream->setParameters(keyValuePair);
+
+    return false;
+}
+
+String8 AudioFlinger::MmapThread::getParameters(const String8& keys)
+{
+    Mutex::Autolock _l(mLock);
+    String8 out_s8;
+    if (initCheck() == NO_ERROR && mHalStream->getParameters(keys, &out_s8) == OK) {
+        return out_s8;
+    }
+    return String8();
+}
+
+void AudioFlinger::MmapThread::ioConfigChanged(audio_io_config_event event, pid_t pid) {
+    sp<AudioIoDescriptor> desc = new AudioIoDescriptor();
+
+    desc->mIoHandle = mId;
+
+    switch (event) {
+    case AUDIO_INPUT_OPENED:
+    case AUDIO_INPUT_CONFIG_CHANGED:
+    case AUDIO_OUTPUT_OPENED:
+    case AUDIO_OUTPUT_CONFIG_CHANGED:
+        desc->mPatch = mPatch;
+        desc->mChannelMask = mChannelMask;
+        desc->mSamplingRate = mSampleRate;
+        desc->mFormat = mFormat;
+        desc->mFrameCount = mFrameCount;
+        desc->mFrameCountHAL = mFrameCount;
+        desc->mLatency = 0;
+        break;
+
+    case AUDIO_INPUT_CLOSED:
+    case AUDIO_OUTPUT_CLOSED:
+    default:
+        break;
+    }
+    mAudioFlinger->ioConfigChanged(event, desc, pid);
+}
+
+status_t AudioFlinger::MmapThread::createAudioPatch_l(const struct audio_patch *patch,
+                                                          audio_patch_handle_t *handle)
+{
+    status_t status = NO_ERROR;
+
+    // store new device and send to effects
+    audio_devices_t type = AUDIO_DEVICE_NONE;
+    audio_port_handle_t deviceId;
+    if (isOutput()) {
+        for (unsigned int i = 0; i < patch->num_sinks; i++) {
+            type |= patch->sinks[i].ext.device.type;
+        }
+        deviceId = patch->sinks[0].id;
+    } else {
+        type = patch->sources[0].ext.device.type;
+        deviceId = patch->sources[0].id;
+    }
+
+    for (size_t i = 0; i < mEffectChains.size(); i++) {
+        mEffectChains[i]->setDevice_l(type);
+    }
+
+    if (isOutput()) {
+        mOutDevice = type;
+    } else {
+        mInDevice = type;
+        // store new source and send to effects
+        if (mAudioSource != patch->sinks[0].ext.mix.usecase.source) {
+            mAudioSource = patch->sinks[0].ext.mix.usecase.source;
+            for (size_t i = 0; i < mEffectChains.size(); i++) {
+                mEffectChains[i]->setAudioSource_l(mAudioSource);
+            }
+        }
+    }
+
+    if (mAudioHwDev->supportsAudioPatches()) {
+        status = mHalDevice->createAudioPatch(patch->num_sources,
+                                            patch->sources,
+                                            patch->num_sinks,
+                                            patch->sinks,
+                                            handle);
+    } else {
+        char *address;
+        if (strcmp(patch->sinks[0].ext.device.address, "") != 0) {
+            //FIXME: we only support address on first sink with HAL version < 3.0
+            address = audio_device_address_to_parameter(
+                                                        patch->sinks[0].ext.device.type,
+                                                        patch->sinks[0].ext.device.address);
+        } else {
+            address = (char *)calloc(1, 1);
+        }
+        AudioParameter param = AudioParameter(String8(address));
+        free(address);
+        param.addInt(String8(AudioParameter::keyRouting), (int)type);
+        if (!isOutput()) {
+            param.addInt(String8(AudioParameter::keyInputSource),
+                                         (int)patch->sinks[0].ext.mix.usecase.source);
+        }
+        status = mHalStream->setParameters(param.toString());
+        *handle = AUDIO_PATCH_HANDLE_NONE;
+    }
+
+    if (isOutput() && mPrevOutDevice != mOutDevice) {
+        mPrevOutDevice = type;
+        sendIoConfigEvent_l(AUDIO_OUTPUT_CONFIG_CHANGED);
+        if (mCallback != 0) {
+            mCallback->onRoutingChanged(deviceId);
+        }
+    }
+    if (!isOutput() && mPrevInDevice != mInDevice) {
+        mPrevInDevice = type;
+        sendIoConfigEvent_l(AUDIO_INPUT_CONFIG_CHANGED);
+        if (mCallback != 0) {
+            mCallback->onRoutingChanged(deviceId);
+        }
+    }
+    return status;
+}
+
+status_t AudioFlinger::MmapThread::releaseAudioPatch_l(const audio_patch_handle_t handle)
+{
+    status_t status = NO_ERROR;
+
+    mInDevice = AUDIO_DEVICE_NONE;
+
+    bool supportsAudioPatches = mHalDevice->supportsAudioPatches(&supportsAudioPatches) == OK ?
+                                        supportsAudioPatches : false;
+
+    if (supportsAudioPatches) {
+        status = mHalDevice->releaseAudioPatch(handle);
+    } else {
+        AudioParameter param;
+        param.addInt(String8(AudioParameter::keyRouting), 0);
+        status = mHalStream->setParameters(param.toString());
+    }
+    return status;
+}
+
+void AudioFlinger::MmapThread::getAudioPortConfig(struct audio_port_config *config)
+{
+    ThreadBase::getAudioPortConfig(config);
+    if (isOutput()) {
+        config->role = AUDIO_PORT_ROLE_SOURCE;
+        config->ext.mix.hw_module = mAudioHwDev->handle();
+        config->ext.mix.usecase.stream = AUDIO_STREAM_DEFAULT;
+    } else {
+        config->role = AUDIO_PORT_ROLE_SINK;
+        config->ext.mix.hw_module = mAudioHwDev->handle();
+        config->ext.mix.usecase.source = mAudioSource;
+    }
+}
+
+status_t AudioFlinger::MmapThread::addEffectChain_l(const sp<EffectChain>& chain)
+{
+    audio_session_t session = chain->sessionId();
+
+    ALOGV("addEffectChain_l() %p on thread %p for session %d", chain.get(), this, session);
+    // Attach all tracks with same session ID to this chain.
+    // indicate all active tracks in the chain
+    for (const sp<MmapTrack> &track : mActiveTracks) {
+        if (session == track->sessionId()) {
+            chain->incTrackCnt();
+            chain->incActiveTrackCnt();
+        }
+    }
+
+    chain->setThread(this);
+    chain->setInBuffer(nullptr);
+    chain->setOutBuffer(nullptr);
+    chain->syncHalEffectsState();
+
+    mEffectChains.add(chain);
+    checkSuspendOnAddEffectChain_l(chain);
+    return NO_ERROR;
+}
+
+size_t AudioFlinger::MmapThread::removeEffectChain_l(const sp<EffectChain>& chain)
+{
+    audio_session_t session = chain->sessionId();
+
+    ALOGV("removeEffectChain_l() %p from thread %p for session %d", chain.get(), this, session);
+
+    for (size_t i = 0; i < mEffectChains.size(); i++) {
+        if (chain == mEffectChains[i]) {
+            mEffectChains.removeAt(i);
+            // detach all active tracks from the chain
+            // detach all tracks with same session ID from this chain
+            for (const sp<MmapTrack> &track : mActiveTracks) {
+                if (session == track->sessionId()) {
+                    chain->decActiveTrackCnt();
+                    chain->decTrackCnt();
+                }
+            }
+            break;
+        }
+    }
+    return mEffectChains.size();
+}
+
+// hasAudioSession_l() must be called with ThreadBase::mLock held
+uint32_t AudioFlinger::MmapThread::hasAudioSession_l(audio_session_t sessionId) const
+{
+    uint32_t result = 0;
+    if (getEffectChain_l(sessionId) != 0) {
+        result = EFFECT_SESSION;
+    }
+
+    for (size_t i = 0; i < mActiveTracks.size(); i++) {
+        sp<MmapTrack> track = mActiveTracks[i];
+        if (sessionId == track->sessionId()) {
+            result |= TRACK_SESSION;
+            if (track->isFastTrack()) {
+                result |= FAST_SESSION;
+            }
+            break;
+        }
+    }
+
+    return result;
+}
+
+void AudioFlinger::MmapThread::threadLoop_standby()
+{
+    mHalStream->standby();
+}
+
+void AudioFlinger::MmapThread::threadLoop_exit()
+{
+    if (mCallback != 0) {
+        mCallback->onTearDown();
+    }
+}
+
+status_t AudioFlinger::MmapThread::setSyncEvent(const sp<SyncEvent>& event __unused)
+{
+    return BAD_VALUE;
+}
+
+bool AudioFlinger::MmapThread::isValidSyncEvent(const sp<SyncEvent>& event __unused) const
+{
+    return false;
+}
+
+status_t AudioFlinger::MmapThread::checkEffectCompatibility_l(
+        const effect_descriptor_t *desc, audio_session_t sessionId)
+{
+    // No global effect sessions on mmap threads
+    if (sessionId == AUDIO_SESSION_OUTPUT_MIX || sessionId == AUDIO_SESSION_OUTPUT_STAGE) {
+        ALOGW("checkEffectCompatibility_l(): global effect %s on record thread %s",
+                desc->name, mThreadName);
+        return BAD_VALUE;
+    }
+
+    if (!isOutput() && ((desc->flags & EFFECT_FLAG_TYPE_MASK) != EFFECT_FLAG_TYPE_PRE_PROC)) {
+        ALOGW("checkEffectCompatibility_l(): non pre processing effect %s on capture mmap thread",
+                desc->name);
+        return BAD_VALUE;
+    }
+    if (isOutput() && ((desc->flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_PRE_PROC)) {
+        ALOGW("checkEffectCompatibility_l(): pre processing effect %s created on playback mmap "
+              "thread", desc->name);
+        return BAD_VALUE;
+    }
+
+    // Only allow effects without processing load or latency
+    if ((desc->flags & EFFECT_FLAG_NO_PROCESS_MASK) != EFFECT_FLAG_NO_PROCESS) {
+        return BAD_VALUE;
+    }
+
+    return NO_ERROR;
+
+}
+
+void AudioFlinger::MmapThread::checkInvalidTracks_l()
+{
+    for (const sp<MmapTrack> &track : mActiveTracks) {
+        if (track->isInvalid()) {
+            if (mCallback != 0) {
+                mCallback->onTearDown();
+            }
+            break;
+        }
+    }
+}
+
+void AudioFlinger::MmapThread::dump(int fd, const Vector<String16>& args)
+{
+    dumpInternals(fd, args);
+    dumpTracks(fd, args);
+    dumpEffectChains(fd, args);
+}
+
+void AudioFlinger::MmapThread::dumpInternals(int fd, const Vector<String16>& args)
+{
+    dprintf(fd, "\nMmap thread %p:\n", this);
+
+    dumpBase(fd, args);
+
+    dprintf(fd, "  Attributes: content type %d usage %d source %d\n",
+            mAttr.content_type, mAttr.usage, mAttr.source);
+    dprintf(fd, "  Session: %d port Id: %d\n", mSessionId, mPortId);
+    if (mActiveTracks.size() == 0) {
+        dprintf(fd, "  No active clients\n");
+    }
+}
+
+void AudioFlinger::MmapThread::dumpTracks(int fd, const Vector<String16>& args __unused)
+{
+    const size_t SIZE = 256;
+    char buffer[SIZE];
+    String8 result;
+
+    size_t numtracks = mActiveTracks.size();
+    dprintf(fd, "  %zu Tracks", numtracks);
+    if (numtracks) {
+        MmapTrack::appendDumpHeader(result);
+        for (size_t i = 0; i < numtracks ; ++i) {
+            sp<MmapTrack> track = mActiveTracks[i];
+            track->dump(buffer, SIZE);
+            result.append(buffer);
+        }
+    } else {
+        dprintf(fd, "\n");
+    }
+    write(fd, result.string(), result.size());
+}
+
+AudioFlinger::MmapPlaybackThread::MmapPlaybackThread(
+        const sp<AudioFlinger>& audioFlinger, audio_io_handle_t id,
+        AudioHwDevice *hwDev,  AudioStreamOut *output,
+        audio_devices_t outDevice, audio_devices_t inDevice, bool systemReady)
+    : MmapThread(audioFlinger, id, hwDev, output->stream, outDevice, inDevice, systemReady),
+      mStreamType(AUDIO_STREAM_MUSIC),
+      mStreamVolume(1.0), mStreamMute(false), mOutput(output)
+{
+    snprintf(mThreadName, kThreadNameLength, "AudioMmapOut_%X", id);
+    mChannelCount = audio_channel_count_from_out_mask(mChannelMask);
+    mMasterVolume = audioFlinger->masterVolume_l();
+    mMasterMute = audioFlinger->masterMute_l();
+    if (mAudioHwDev) {
+        if (mAudioHwDev->canSetMasterVolume()) {
+            mMasterVolume = 1.0;
+        }
+
+        if (mAudioHwDev->canSetMasterMute()) {
+            mMasterMute = false;
+        }
+    }
+}
+
+void AudioFlinger::MmapPlaybackThread::configure(const audio_attributes_t *attr,
+                                                audio_stream_type_t streamType,
+                                                audio_session_t sessionId,
+                                                const sp<MmapStreamCallback>& callback,
+                                                audio_port_handle_t portId)
+{
+    MmapThread::configure(attr, streamType, sessionId, callback, portId);
+    mStreamType = streamType;
+}
+
+AudioStreamOut* AudioFlinger::MmapPlaybackThread::clearOutput()
+{
+    Mutex::Autolock _l(mLock);
+    AudioStreamOut *output = mOutput;
+    mOutput = NULL;
+    return output;
+}
+
+void AudioFlinger::MmapPlaybackThread::setMasterVolume(float value)
+{
+    Mutex::Autolock _l(mLock);
+    // Don't apply master volume in SW if our HAL can do it for us.
+    if (mAudioHwDev &&
+            mAudioHwDev->canSetMasterVolume()) {
+        mMasterVolume = 1.0;
+    } else {
+        mMasterVolume = value;
+    }
+}
+
+void AudioFlinger::MmapPlaybackThread::setMasterMute(bool muted)
+{
+    Mutex::Autolock _l(mLock);
+    // Don't apply master mute in SW if our HAL can do it for us.
+    if (mAudioHwDev && mAudioHwDev->canSetMasterMute()) {
+        mMasterMute = false;
+    } else {
+        mMasterMute = muted;
+    }
+}
+
+void AudioFlinger::MmapPlaybackThread::setStreamVolume(audio_stream_type_t stream, float value)
+{
+    Mutex::Autolock _l(mLock);
+    if (stream == mStreamType) {
+        mStreamVolume = value;
+        broadcast_l();
+    }
+}
+
+float AudioFlinger::MmapPlaybackThread::streamVolume(audio_stream_type_t stream) const
+{
+    Mutex::Autolock _l(mLock);
+    if (stream == mStreamType) {
+        return mStreamVolume;
+    }
+    return 0.0f;
+}
+
+void AudioFlinger::MmapPlaybackThread::setStreamMute(audio_stream_type_t stream, bool muted)
+{
+    Mutex::Autolock _l(mLock);
+    if (stream == mStreamType) {
+        mStreamMute= muted;
+        broadcast_l();
+    }
+}
+
+void AudioFlinger::MmapPlaybackThread::invalidateTracks(audio_stream_type_t streamType)
+{
+    Mutex::Autolock _l(mLock);
+    if (streamType == mStreamType) {
+        for (const sp<MmapTrack> &track : mActiveTracks) {
+            track->invalidate();
+        }
+        broadcast_l();
+    }
+}
+
+void AudioFlinger::MmapPlaybackThread::processVolume_l()
+{
+    float volume;
+
+    if (mMasterMute || mStreamMute) {
+        volume = 0;
+    } else {
+        volume = mMasterVolume * mStreamVolume;
+    }
+
+    if (volume != mHalVolFloat) {
+        mHalVolFloat = volume;
+
+        // Convert volumes from float to 8.24
+        uint32_t vol = (uint32_t)(volume * (1 << 24));
+
+        // Delegate volume control to effect in track effect chain if needed
+        // only one effect chain can be present on DirectOutputThread, so if
+        // there is one, the track is connected to it
+        if (!mEffectChains.isEmpty()) {
+            mEffectChains[0]->setVolume_l(&vol, &vol);
+            volume = (float)vol / (1 << 24);
+        }
+
+        mOutput->stream->setVolume(volume, volume);
+
+        if (mCallback != 0) {
+            int channelCount;
+            if (isOutput()) {
+                channelCount = audio_channel_count_from_out_mask(mChannelMask);
+            } else {
+                channelCount = audio_channel_count_from_in_mask(mChannelMask);
+            }
+            Vector<float> values;
+            for (int i = 0; i < channelCount; i++) {
+                values.add(volume);
+            }
+            mCallback->onVolumeChanged(mChannelMask, values);
+        }
+    }
+}
+
+void AudioFlinger::MmapPlaybackThread::checkSilentMode_l()
+{
+    if (!mMasterMute) {
+        char value[PROPERTY_VALUE_MAX];
+        if (property_get("ro.audio.silent", value, "0") > 0) {
+            char *endptr;
+            unsigned long ul = strtoul(value, &endptr, 0);
+            if (*endptr == '\0' && ul != 0) {
+                ALOGD("Silence is golden");
+                // The setprop command will not allow a property to be changed after
+                // the first time it is set, so we don't have to worry about un-muting.
+                setMasterMute_l(true);
+            }
+        }
+    }
+}
+
+void AudioFlinger::MmapPlaybackThread::dumpInternals(int fd, const Vector<String16>& args)
+{
+    MmapThread::dumpInternals(fd, args);
+
+    dprintf(fd, "  Stream type: %d Stream volume: %f HAL volume: %f Stream mute %d\n",
+            mStreamType, mStreamVolume, mHalVolFloat, mStreamMute);
+    dprintf(fd, "  Master volume: %f Master mute %d\n", mMasterVolume, mMasterMute);
+}
+
+AudioFlinger::MmapCaptureThread::MmapCaptureThread(
+        const sp<AudioFlinger>& audioFlinger, audio_io_handle_t id,
+        AudioHwDevice *hwDev,  AudioStreamIn *input,
+        audio_devices_t outDevice, audio_devices_t inDevice, bool systemReady)
+    : MmapThread(audioFlinger, id, hwDev, input->stream, outDevice, inDevice, systemReady),
+      mInput(input)
+{
+    snprintf(mThreadName, kThreadNameLength, "AudioMmapIn_%X", id);
+    mChannelCount = audio_channel_count_from_in_mask(mChannelMask);
+}
+
+AudioFlinger::AudioStreamIn* AudioFlinger::MmapCaptureThread::clearInput()
+{
+    Mutex::Autolock _l(mLock);
+    AudioStreamIn *input = mInput;
+    mInput = NULL;
+    return input;
+}
 } // namespace android
diff --git a/services/audioflinger/Threads.h b/services/audioflinger/Threads.h
index b3b4cf2..422eeb5 100644
--- a/services/audioflinger/Threads.h
+++ b/services/audioflinger/Threads.h
@@ -29,7 +29,8 @@
         DIRECT,             // Thread class is DirectOutputThread
         DUPLICATING,        // Thread class is DuplicatingThread
         RECORD,             // Thread class is RecordThread
-        OFFLOAD             // Thread class is OffloadThread
+        OFFLOAD,            // Thread class is OffloadThread
+        MMAP                // control thread for MMAP stream
     };
 
     static const char *threadTypeToString(type_t type);
@@ -126,23 +127,25 @@
 
     class PrioConfigEventData : public ConfigEventData {
     public:
-        PrioConfigEventData(pid_t pid, pid_t tid, int32_t prio) :
-            mPid(pid), mTid(tid), mPrio(prio) {}
+        PrioConfigEventData(pid_t pid, pid_t tid, int32_t prio, bool forApp) :
+            mPid(pid), mTid(tid), mPrio(prio), mForApp(forApp) {}
 
         virtual  void dump(char *buffer, size_t size) {
-            snprintf(buffer, size, "Prio event: pid %d, tid %d, prio %d\n", mPid, mTid, mPrio);
+            snprintf(buffer, size, "Prio event: pid %d, tid %d, prio %d, for app? %d\n",
+                    mPid, mTid, mPrio, mForApp);
         }
 
         const pid_t mPid;
         const pid_t mTid;
         const int32_t mPrio;
+        const bool mForApp;
     };
 
     class PrioConfigEvent : public ConfigEvent {
     public:
-        PrioConfigEvent(pid_t pid, pid_t tid, int32_t prio) :
+        PrioConfigEvent(pid_t pid, pid_t tid, int32_t prio, bool forApp) :
             ConfigEvent(CFG_EVENT_PRIO, true) {
-            mData = new PrioConfigEventData(pid, tid, prio);
+            mData = new PrioConfigEventData(pid, tid, prio, forApp);
         }
         virtual ~PrioConfigEvent() {}
     };
@@ -267,8 +270,8 @@
                 status_t    sendConfigEvent_l(sp<ConfigEvent>& event);
                 void        sendIoConfigEvent(audio_io_config_event event, pid_t pid = 0);
                 void        sendIoConfigEvent_l(audio_io_config_event event, pid_t pid = 0);
-                void        sendPrioConfigEvent(pid_t pid, pid_t tid, int32_t prio);
-                void        sendPrioConfigEvent_l(pid_t pid, pid_t tid, int32_t prio);
+                void        sendPrioConfigEvent(pid_t pid, pid_t tid, int32_t prio, bool forApp);
+                void        sendPrioConfigEvent_l(pid_t pid, pid_t tid, int32_t prio, bool forApp);
                 status_t    sendSetParameterConfigEvent_l(const String8& keyValuePair);
                 status_t    sendCreateAudioPatchConfigEvent(const struct audio_patch *patch,
                                                             audio_patch_handle_t *handle);
@@ -286,7 +289,7 @@
                 audio_devices_t outDevice() const { return mOutDevice; }
                 audio_devices_t inDevice() const { return mInDevice; }
 
-    virtual     audio_stream_t* stream() const = 0;
+    virtual     sp<StreamHalInterface> stream() const = 0;
 
                 sp<EffectHandle> createEffect_l(
                                     const sp<AudioFlinger::Client>& client,
@@ -390,6 +393,8 @@
                 virtual status_t    checkEffectCompatibility_l(const effect_descriptor_t *desc,
                                                                audio_session_t sessionId) = 0;
 
+                        void        broadcast_l();
+
     mutable     Mutex                   mLock;
 
 protected:
@@ -403,12 +408,11 @@
                     effect_uuid_t mType;    // effect type UUID
                 };
 
-                void        acquireWakeLock(int uid = -1);
-                virtual void acquireWakeLock_l(int uid = -1);
+                void        acquireWakeLock();
+                virtual void acquireWakeLock_l();
                 void        releaseWakeLock();
                 void        releaseWakeLock_l();
-                void        updateWakeLockUids(const SortedVector<int> &uids);
-                void        updateWakeLockUids_l(const SortedVector<int> &uids);
+                void        updateWakeLockUids_l(const SortedVector<uid_t> &uids);
                 void        getPowerManager_l();
                 void setEffectSuspended_l(const effect_uuid_t *type,
                                           bool suspend,
@@ -482,12 +486,113 @@
                 static const size_t     kLogSize = 4 * 1024;
                 sp<NBLog::Writer>       mNBLogWriter;
                 bool                    mSystemReady;
-                bool                    mNotifiedBatteryStart;
                 ExtendedTimestamp       mTimestamp;
+                // A condition that must be evaluated by the thread loop has changed and
+                // we must not wait for async write callback in the thread loop before evaluating it
+                bool                    mSignalPending;
+
+                // ActiveTracks is a sorted vector of track type T representing the
+                // active tracks of threadLoop() to be considered by the locked prepare portion.
+                // ActiveTracks should be accessed with the ThreadBase lock held.
+                //
+                // During processing and I/O, the threadLoop does not hold the lock;
+                // hence it does not directly use ActiveTracks.  Care should be taken
+                // to hold local strong references or defer removal of tracks
+                // if the threadLoop may still be accessing those tracks due to mix, etc.
+                //
+                // This class updates power information appropriately.
+                //
+
+                template <typename T>
+                class ActiveTracks {
+                public:
+                    ActiveTracks()
+                        : mActiveTracksGeneration(0)
+                        , mLastActiveTracksGeneration(0)
+                    { }
+
+                    ~ActiveTracks() {
+                        ALOGW_IF(!mActiveTracks.isEmpty(),
+                                "ActiveTracks should be empty in destructor");
+                    }
+                    // returns the last track added (even though it may have been
+                    // subsequently removed from ActiveTracks).
+                    //
+                    // Used for DirectOutputThread to ensure a flush is called when transitioning
+                    // to a new track (even though it may be on the same session).
+                    // Used for OffloadThread to ensure that volume and mixer state is
+                    // taken from the latest track added.
+                    //
+                    // The latest track is saved with a weak pointer to prevent keeping an
+                    // otherwise useless track alive. Thus the function will return nullptr
+                    // if the latest track has subsequently been removed and destroyed.
+                    sp<T> getLatest() {
+                        return mLatestActiveTrack.promote();
+                    }
+
+                    // SortedVector methods
+                    ssize_t         add(const sp<T> &track);
+                    ssize_t         remove(const sp<T> &track);
+                    size_t          size() const {
+                        return mActiveTracks.size();
+                    }
+                    ssize_t         indexOf(const sp<T>& item) {
+                        return mActiveTracks.indexOf(item);
+                    }
+                    sp<T>           operator[](size_t index) const {
+                        return mActiveTracks[index];
+                    }
+                    typename SortedVector<sp<T>>::iterator begin() {
+                        return mActiveTracks.begin();
+                    }
+                    typename SortedVector<sp<T>>::iterator end() {
+                        return mActiveTracks.end();
+                    }
+
+                    // Due to Binder recursion optimization, clear() and updatePowerState()
+                    // cannot be called from a Binder thread because they may call back into
+                    // the original calling process (system server) for BatteryNotifier
+                    // (which requires a Java environment that may not be present).
+                    // Hence, call clear() and updatePowerState() only from the
+                    // ThreadBase thread.
+                    void            clear();
+                    // periodically called in the threadLoop() to update power state uids.
+                    void            updatePowerState(sp<ThreadBase> thread, bool force = false);
+
+                private:
+                    SortedVector<uid_t> getWakeLockUids() {
+                        SortedVector<uid_t> wakeLockUids;
+                        for (const sp<T> &track : mActiveTracks) {
+                            wakeLockUids.add(track->uid());
+                        }
+                        return wakeLockUids; // moved by underlying SharedBuffer
+                    }
+
+                    std::map<uid_t, std::pair<ssize_t /* previous */, ssize_t /* current */>>
+                                        mBatteryCounter;
+                    SortedVector<sp<T>> mActiveTracks;
+                    int                 mActiveTracksGeneration;
+                    int                 mLastActiveTracksGeneration;
+                    wp<T>               mLatestActiveTrack; // latest track added to ActiveTracks
+                };
+};
+
+class VolumeInterface {
+ public:
+
+    virtual ~VolumeInterface() {}
+
+    virtual void        setMasterVolume(float value) = 0;
+    virtual void        setMasterMute(bool muted) = 0;
+    virtual void        setStreamVolume(audio_stream_type_t stream, float value) = 0;
+    virtual void        setStreamMute(audio_stream_type_t stream, bool muted) = 0;
+    virtual float       streamVolume(audio_stream_type_t stream) const = 0;
+
 };
 
 // --- PlaybackThread ---
-class PlaybackThread : public ThreadBase {
+class PlaybackThread : public ThreadBase, public StreamOutHalInterfaceCallback,
+    public VolumeInterface {
 public:
 
 #include "PlaybackTracks.h"
@@ -544,13 +649,13 @@
     virtual     mixer_state prepareTracks_l(Vector< sp<Track> > *tracksToRemove) = 0;
                 void        removeTracks_l(const Vector< sp<Track> >& tracksToRemove);
 
-                void        writeCallback();
-                void        resetWriteBlocked(uint32_t sequence);
-                void        drainCallback();
-                void        resetDraining(uint32_t sequence);
-                void        errorCallback();
+    // StreamOutHalInterfaceCallback implementation
+    virtual     void        onWriteReady();
+    virtual     void        onDrainReady();
+    virtual     void        onError();
 
-    static      int         asyncCallback(stream_callback_event_t event, void *param, void *cookie);
+                void        resetWriteBlocked(uint32_t sequence);
+                void        resetDraining(uint32_t sequence);
 
     virtual     bool        waitingAsyncCallback();
     virtual     bool        waitingAsyncCallback_l();
@@ -562,6 +667,10 @@
     virtual     void        preExit();
 
     virtual     bool        keepWakeLock() const { return true; }
+    virtual     void        acquireWakeLock_l() {
+                                ThreadBase::acquireWakeLock_l();
+                                mActiveTracks.updatePowerState(this, true /* force */);
+                            }
 
 public:
 
@@ -572,13 +681,12 @@
                 // same, but lock must already be held
                 uint32_t    latency_l() const;
 
-                void        setMasterVolume(float value);
-                void        setMasterMute(bool muted);
-
-                void        setStreamVolume(audio_stream_type_t stream, float value);
-                void        setStreamMute(audio_stream_type_t stream, bool muted);
-
-                float       streamVolume(audio_stream_type_t stream) const;
+                // VolumeInterface
+    virtual     void        setMasterVolume(float value);
+    virtual     void        setMasterMute(bool muted);
+    virtual     void        setStreamVolume(audio_stream_type_t stream, float value);
+    virtual     void        setStreamMute(audio_stream_type_t stream, bool muted);
+    virtual     float       streamVolume(audio_stream_type_t stream) const;
 
                 sp<Track>   createTrack_l(
                                 const sp<AudioFlinger::Client>& client,
@@ -591,12 +699,13 @@
                                 audio_session_t sessionId,
                                 audio_output_flags_t *flags,
                                 pid_t tid,
-                                int uid,
-                                status_t *status /*non-NULL*/);
+                                uid_t uid,
+                                status_t *status /*non-NULL*/,
+                                audio_port_handle_t portId);
 
                 AudioStreamOut* getOutput() const;
                 AudioStreamOut* clearOutput();
-                virtual audio_stream_t* stream() const;
+                virtual sp<StreamHalInterface> stream() const;
 
                 // a very large number of suspend() will eventually wraparound, but unlikely
                 void        suspend() { (void) android_atomic_inc(&mSuspended); }
@@ -648,6 +757,9 @@
 
     virtual     void        getAudioPortConfig(struct audio_port_config *config);
 
+                // Return the asynchronous signal wait time.
+    virtual     int64_t     computeWaitTimeNs_l() const { return INT64_MAX; }
+
 protected:
     // updated by readOutputParameters_l()
     size_t                          mNormalFrameCount;  // normal mixer and effects
@@ -734,10 +846,7 @@
     bool                            mMasterMute;
                 void        setMasterMute_l(bool muted) { mMasterMute = muted; }
 protected:
-    SortedVector< wp<Track> >       mActiveTracks;  // FIXME check if this could be sp<>
-    SortedVector<int>               mWakeLockUids;
-    int                             mActiveTracksGeneration;
-    wp<Track>                       mLatestActiveTrack; // latest track added to mActiveTracks
+    ActiveTracks<Track>     mActiveTracks;
 
     // Allocate a track name for a given channel mask.
     //   Returns name >= 0 if successful, -1 on failure.
@@ -783,7 +892,6 @@
     status_t    addTrack_l(const sp<Track>& track);
     bool        destroyTrack_l(const sp<Track>& track);
     void        removeTrack_l(const sp<Track>& track);
-    void        broadcast_l();
 
     void        readOutputParameters_l();
 
@@ -845,9 +953,6 @@
     // Bit 0 is reset by the async callback thread calling resetDraining(). Out of sequence
     // callbacks are ignored.
     uint32_t                        mDrainSequence;
-    // A condition that must be evaluated by prepareTrack_l() has changed and we must not wait
-    // for async write callback in the thread loop before evaluating it
-    bool                            mSignalPending;
     sp<AsyncCallbackThread>         mCallbackThread;
 
 private:
@@ -865,6 +970,82 @@
     uint32_t                mScreenState;   // cached copy of gScreenState
     static const size_t     kFastMixerLogSize = 4 * 1024;
     sp<NBLog::Writer>       mFastMixerNBLogWriter;
+
+    // Do not call from a sched_fifo thread as it uses a system time call
+    // and obtains a local mutex.
+    class LocalLog {
+    public:
+        void log(const char *fmt, ...) {
+            va_list val;
+            va_start(val, fmt);
+
+            // format to buffer
+            char buffer[512];
+            int length = vsnprintf(buffer, sizeof(buffer), fmt, val);
+            if (length >= (signed)sizeof(buffer)) {
+                length = sizeof(buffer) - 1;
+            }
+
+            // strip out trailing newline
+            while (length > 0 && buffer[length - 1] == '\n') {
+                buffer[--length] = 0;
+            }
+
+            // store in circular array
+            AutoMutex _l(mLock);
+            mLog.emplace_back(
+                    std::make_pair(systemTime(SYSTEM_TIME_REALTIME), std::string(buffer)));
+            if (mLog.size() > kLogSize) {
+                mLog.pop_front();
+            }
+
+            va_end(val);
+        }
+
+        void dump(int fd, const Vector<String16>& args, const char *prefix = "") {
+            if (!AudioFlinger::dumpTryLock(mLock)) return; // a local lock, shouldn't happen
+            if (mLog.size() > 0) {
+                bool dumpAll = false;
+                for (const auto &arg : args) {
+                    if (arg == String16("--locallog")) {
+                        dumpAll = true;
+                    }
+                }
+
+                dprintf(fd, "Local Log:\n");
+                auto it = mLog.begin();
+                if (!dumpAll) {
+                    const size_t lines =
+                            (size_t)property_get_int32("audio.locallog.lines", kLogPrint);
+                    if (mLog.size() > lines) {
+                        it += (mLog.size() - lines);
+                    }
+                }
+                for (; it != mLog.end(); ++it) {
+                    const int64_t ns = it->first;
+                    const int ns_per_sec = 1000000000;
+                    const time_t sec = ns / ns_per_sec;
+                    struct tm tm;
+                    localtime_r(&sec, &tm);
+
+                    dprintf(fd, "%s%02d-%02d %02d:%02d:%02d.%03d %s\n",
+                            prefix,
+                            tm.tm_mon + 1, // localtime_r uses months in 0 - 11 range
+                            tm.tm_mday, tm.tm_hour, tm.tm_min, tm.tm_sec,
+                            (int)(ns % ns_per_sec / 1000000),
+                            it->second.c_str());
+                }
+            }
+            mLock.unlock();
+        }
+
+    private:
+        Mutex mLock;
+        static const size_t kLogSize = 256; // full history
+        static const size_t kLogPrint = 32; // default print history
+        std::deque<std::pair<int64_t, std::string>> mLog;
+    } mLocalLog;
+
 public:
     virtual     bool        hasFastMixer() const = 0;
     virtual     FastTrackUnderruns getFastTrackUnderruns(size_t fastIndex __unused) const
@@ -903,8 +1084,8 @@
     virtual     uint32_t    suspendSleepTimeUs() const;
     virtual     void        cacheParameters_l();
 
-    virtual void acquireWakeLock_l(int uid = -1) {
-        PlaybackThread::acquireWakeLock_l(uid);
+    virtual void acquireWakeLock_l() {
+        PlaybackThread::acquireWakeLock_l();
         if (hasFastMixer()) {
             mFastMixer->setBoottimeOffset(
                     mTimestamp.mTimebaseOffset[ExtendedTimestamp::TIMEBASE_BOOTTIME]);
@@ -996,6 +1177,7 @@
     // volumes last sent to audio HAL with stream->set_volume()
     float mLeftVolFloat;
     float mRightVolFloat;
+    bool mVolumeShaperActive;
 
     DirectOutputThread(const sp<AudioFlinger>& audioFlinger, AudioStreamOut* output,
                         audio_io_handle_t id, uint32_t device, ThreadBase::type_t type,
@@ -1009,6 +1191,8 @@
 
 public:
     virtual     bool        hasFastMixer() const { return false; }
+
+    virtual     int64_t     computeWaitTimeNs_l() const override;
 };
 
 class OffloadThread : public DirectOutputThread {
@@ -1113,7 +1297,6 @@
     virtual     bool        hasFastMixer() const { return false; }
 };
 
-
 // record thread
 class RecordThread : public ThreadBase
 {
@@ -1162,92 +1345,6 @@
                                             // rolling counter that is never cleared
     };
 
-    /* The RecordBufferConverter is used for format, channel, and sample rate
-     * conversion for a RecordTrack.
-     *
-     * TODO: Self contained, so move to a separate file later.
-     *
-     * RecordBufferConverter uses the convert() method rather than exposing a
-     * buffer provider interface; this is to save a memory copy.
-     */
-    class RecordBufferConverter
-    {
-    public:
-        RecordBufferConverter(
-                audio_channel_mask_t srcChannelMask, audio_format_t srcFormat,
-                uint32_t srcSampleRate,
-                audio_channel_mask_t dstChannelMask, audio_format_t dstFormat,
-                uint32_t dstSampleRate);
-
-        ~RecordBufferConverter();
-
-        /* Converts input data from an AudioBufferProvider by format, channelMask,
-         * and sampleRate to a destination buffer.
-         *
-         * Parameters
-         *      dst:  buffer to place the converted data.
-         * provider:  buffer provider to obtain source data.
-         *   frames:  number of frames to convert
-         *
-         * Returns the number of frames converted.
-         */
-        size_t convert(void *dst, AudioBufferProvider *provider, size_t frames);
-
-        // returns NO_ERROR if constructor was successful
-        status_t initCheck() const {
-            // mSrcChannelMask set on successful updateParameters
-            return mSrcChannelMask != AUDIO_CHANNEL_INVALID ? NO_ERROR : NO_INIT;
-        }
-
-        // allows dynamic reconfigure of all parameters
-        status_t updateParameters(
-                audio_channel_mask_t srcChannelMask, audio_format_t srcFormat,
-                uint32_t srcSampleRate,
-                audio_channel_mask_t dstChannelMask, audio_format_t dstFormat,
-                uint32_t dstSampleRate);
-
-        // called to reset resampler buffers on record track discontinuity
-        void reset() {
-            if (mResampler != NULL) {
-                mResampler->reset();
-            }
-        }
-
-    private:
-        // format conversion when not using resampler
-        void convertNoResampler(void *dst, const void *src, size_t frames);
-
-        // format conversion when using resampler; modifies src in-place
-        void convertResampler(void *dst, /*not-a-const*/ void *src, size_t frames);
-
-        // user provided information
-        audio_channel_mask_t mSrcChannelMask;
-        audio_format_t       mSrcFormat;
-        uint32_t             mSrcSampleRate;
-        audio_channel_mask_t mDstChannelMask;
-        audio_format_t       mDstFormat;
-        uint32_t             mDstSampleRate;
-
-        // derived information
-        uint32_t             mSrcChannelCount;
-        uint32_t             mDstChannelCount;
-        size_t               mDstFrameSize;
-
-        // format conversion buffer
-        void                *mBuf;
-        size_t               mBufFrames;
-        size_t               mBufFrameSize;
-
-        // resampler info
-        AudioResampler      *mResampler;
-
-        bool                 mIsLegacyDownmix;  // legacy stereo to mono conversion needed
-        bool                 mIsLegacyUpmix;    // legacy mono to stereo conversion needed
-        bool                 mRequiresFloat;    // data processing requires float (e.g. resampler)
-        PassthruBufferProvider *mInputConverterProvider;    // converts input to float
-        int8_t               mIdxAry[sizeof(uint32_t) * 8]; // used for channel mask conversion
-    };
-
 #include "RecordTracks.h"
 
             RecordThread(const sp<AudioFlinger>& audioFlinger,
@@ -1271,6 +1368,7 @@
 
     // Thread virtuals
     virtual bool        threadLoop();
+    virtual void        preExit();
 
     // RefBase
     virtual void        onFirstRef();
@@ -1289,10 +1387,11 @@
                     size_t *pFrameCount,
                     audio_session_t sessionId,
                     size_t *notificationFrames,
-                    int uid,
+                    uid_t uid,
                     audio_input_flags_t *flags,
                     pid_t tid,
-                    status_t *status /*non-NULL*/);
+                    status_t *status /*non-NULL*/,
+                    audio_port_handle_t portId);
 
             status_t    start(RecordTrack* recordTrack,
                               AudioSystem::sync_event_t event,
@@ -1304,7 +1403,7 @@
 
             void        dump(int fd, const Vector<String16>& args);
             AudioStreamIn* clearInput();
-            virtual audio_stream_t* stream() const;
+            virtual sp<StreamHalInterface> stream() const;
 
 
     virtual bool        checkForNewParameter_l(const String8& keyValuePair,
@@ -1343,6 +1442,11 @@
     virtual status_t    checkEffectCompatibility_l(const effect_descriptor_t *desc,
                                                    audio_session_t sessionId);
 
+    virtual void        acquireWakeLock_l() {
+                            ThreadBase::acquireWakeLock_l();
+                            mActiveTracks.updatePowerState(this, true /* force */);
+                        }
+
 private:
             // Enter standby if not already in standby, and set mStandby flag
             void    standbyIfNotAlreadyInStandby();
@@ -1354,15 +1458,15 @@
             SortedVector < sp<RecordTrack> >    mTracks;
             // mActiveTracks has dual roles:  it indicates the current active track(s), and
             // is used together with mStartStopCond to indicate start()/stop() progress
-            SortedVector< sp<RecordTrack> >     mActiveTracks;
-            // generation counter for mActiveTracks
-            int                                 mActiveTracksGen;
+            ActiveTracks<RecordTrack>           mActiveTracks;
+
             Condition                           mStartStopCond;
 
             // resampler converts input at HAL Hz to output at AudioRecord client Hz
-            void                               *mRsmpInBuffer; //
+            void                               *mRsmpInBuffer;  // size = mRsmpInFramesOA
             size_t                              mRsmpInFrames;  // size of resampler input in frames
             size_t                              mRsmpInFramesP2;// size rounded up to a power-of-2
+            size_t                              mRsmpInFramesOA;// mRsmpInFramesP2 + over-allocation
 
             // rolling index that is never cleared
             int32_t                             mRsmpInRear;    // last filled frame + 1
@@ -1410,3 +1514,155 @@
 
             bool                                mFastTrackAvail;    // true if fast track available
 };
+
+class MmapThread : public ThreadBase
+{
+ public:
+
+#include "MmapTracks.h"
+
+    MmapThread(const sp<AudioFlinger>& audioFlinger, audio_io_handle_t id,
+                      AudioHwDevice *hwDev, sp<StreamHalInterface> stream,
+                      audio_devices_t outDevice, audio_devices_t inDevice, bool systemReady);
+    virtual     ~MmapThread();
+
+    virtual     void        configure(const audio_attributes_t *attr,
+                                      audio_stream_type_t streamType,
+                                      audio_session_t sessionId,
+                                      const sp<MmapStreamCallback>& callback,
+                                      audio_port_handle_t portId);
+
+                void        disconnect();
+
+    // MmapStreamInterface
+    status_t createMmapBuffer(int32_t minSizeFrames,
+                                      struct audio_mmap_buffer_info *info);
+    status_t getMmapPosition(struct audio_mmap_position *position);
+    status_t start(const MmapStreamInterface::Client& client, audio_port_handle_t *handle);
+    status_t stop(audio_port_handle_t handle);
+    status_t standby();
+
+    // RefBase
+    virtual     void        onFirstRef();
+
+    // Thread virtuals
+    virtual     bool        threadLoop();
+
+    virtual     void        threadLoop_exit();
+    virtual     void        threadLoop_standby();
+    virtual     bool        shouldStandby_l() { return false; }
+
+    virtual     status_t    initCheck() const { return (mHalStream == 0) ? NO_INIT : NO_ERROR; }
+    virtual     size_t      frameCount() const { return mFrameCount; }
+    virtual     bool        checkForNewParameter_l(const String8& keyValuePair,
+                                                    status_t& status);
+    virtual     String8     getParameters(const String8& keys);
+    virtual     void        ioConfigChanged(audio_io_config_event event, pid_t pid = 0);
+                void        readHalParameters_l();
+    virtual     void        cacheParameters_l() {}
+    virtual     status_t    createAudioPatch_l(const struct audio_patch *patch,
+                                               audio_patch_handle_t *handle);
+    virtual     status_t    releaseAudioPatch_l(const audio_patch_handle_t handle);
+    virtual     void        getAudioPortConfig(struct audio_port_config *config);
+
+    virtual     sp<StreamHalInterface> stream() const { return mHalStream; }
+    virtual     status_t    addEffectChain_l(const sp<EffectChain>& chain);
+    virtual     size_t      removeEffectChain_l(const sp<EffectChain>& chain);
+    virtual     status_t    checkEffectCompatibility_l(const effect_descriptor_t *desc,
+                                                               audio_session_t sessionId);
+
+    virtual     uint32_t    hasAudioSession_l(audio_session_t sessionId) const;
+    virtual     status_t    setSyncEvent(const sp<SyncEvent>& event);
+    virtual     bool        isValidSyncEvent(const sp<SyncEvent>& event) const;
+
+    virtual     void        checkSilentMode_l() {}
+    virtual     void        processVolume_l() {}
+                void        checkInvalidTracks_l();
+
+    virtual     audio_stream_type_t streamType() { return AUDIO_STREAM_DEFAULT; }
+
+    virtual     void        invalidateTracks(audio_stream_type_t streamType __unused) {}
+
+                void        dump(int fd, const Vector<String16>& args);
+    virtual     void        dumpInternals(int fd, const Vector<String16>& args);
+                void        dumpTracks(int fd, const Vector<String16>& args);
+
+    virtual     bool        isOutput() const = 0;
+
+ protected:
+
+                audio_attributes_t      mAttr;
+                audio_session_t         mSessionId;
+                audio_port_handle_t     mPortId;
+
+                sp<MmapStreamCallback>  mCallback;
+                sp<StreamHalInterface>  mHalStream;
+                sp<DeviceHalInterface>  mHalDevice;
+                AudioHwDevice* const    mAudioHwDev;
+                ActiveTracks<MmapTrack> mActiveTracks;
+};
+
+class MmapPlaybackThread : public MmapThread, public VolumeInterface
+{
+
+public:
+    MmapPlaybackThread(const sp<AudioFlinger>& audioFlinger, audio_io_handle_t id,
+                      AudioHwDevice *hwDev, AudioStreamOut *output,
+                      audio_devices_t outDevice, audio_devices_t inDevice, bool systemReady);
+    virtual     ~MmapPlaybackThread() {}
+
+    virtual     void        configure(const audio_attributes_t *attr,
+                                      audio_stream_type_t streamType,
+                                      audio_session_t sessionId,
+                                      const sp<MmapStreamCallback>& callback,
+                                      audio_port_handle_t portId);
+
+                AudioStreamOut* clearOutput();
+
+                // VolumeInterface
+    virtual     void        setMasterVolume(float value);
+    virtual     void        setMasterMute(bool muted);
+    virtual     void        setStreamVolume(audio_stream_type_t stream, float value);
+    virtual     void        setStreamMute(audio_stream_type_t stream, bool muted);
+    virtual     float       streamVolume(audio_stream_type_t stream) const;
+
+                void        setMasterMute_l(bool muted) { mMasterMute = muted; }
+
+    virtual     void        invalidateTracks(audio_stream_type_t streamType);
+
+    virtual     audio_stream_type_t streamType() { return mStreamType; }
+    virtual     void        checkSilentMode_l();
+    virtual     void        processVolume_l();
+
+    virtual     void        dumpInternals(int fd, const Vector<String16>& args);
+
+    virtual     bool        isOutput() const { return true; }
+
+protected:
+
+                audio_stream_type_t         mStreamType;
+                float                       mMasterVolume;
+                float                       mStreamVolume;
+                bool                        mMasterMute;
+                bool                        mStreamMute;
+                float                       mHalVolFloat;
+                AudioStreamOut*             mOutput;
+};
+
+class MmapCaptureThread : public MmapThread
+{
+
+public:
+    MmapCaptureThread(const sp<AudioFlinger>& audioFlinger, audio_io_handle_t id,
+                      AudioHwDevice *hwDev, AudioStreamIn *input,
+                      audio_devices_t outDevice, audio_devices_t inDevice, bool systemReady);
+    virtual     ~MmapCaptureThread() {}
+
+                AudioStreamIn* clearInput();
+
+    virtual     bool           isOutput() const { return false; }
+
+protected:
+
+                AudioStreamIn*  mInput;
+};
diff --git a/services/audioflinger/TrackBase.h b/services/audioflinger/TrackBase.h
index 6b97246..e0c09f7 100644
--- a/services/audioflinger/TrackBase.h
+++ b/services/audioflinger/TrackBase.h
@@ -62,10 +62,11 @@
                                 size_t frameCount,
                                 void *buffer,
                                 audio_session_t sessionId,
-                                int uid,
+                                uid_t uid,
                                 bool isOut,
                                 alloc_type alloc = ALLOC_CBLK,
-                                track_type type = TYPE_DEFAULT);
+                                track_type type = TYPE_DEFAULT,
+                                audio_port_handle_t portId = AUDIO_PORT_HANDLE_NONE);
     virtual             ~TrackBase();
     virtual status_t    initCheck() const;
 
@@ -75,7 +76,8 @@
             sp<IMemory> getCblk() const { return mCblkMemory; }
             audio_track_cblk_t* cblk() const { return mCblk; }
             audio_session_t sessionId() const { return mSessionId; }
-            int         uid() const { return mUid; }
+            uid_t       uid() const { return mUid; }
+            audio_port_handle_t portId() const { return mPortId; }
     virtual status_t    setSyncEvent(const sp<SyncEvent>& event);
 
             sp<IMemory> getBuffers() const { return mBufferMemory; }
@@ -85,6 +87,10 @@
             bool        isPatchTrack() const { return (mType == TYPE_PATCH); }
             bool        isExternalTrack() const { return !isOutputTrack() && !isPatchTrack(); }
 
+    virtual void        invalidate() { mIsInvalid = true; }
+            bool        isInvalid() const { return mIsInvalid; }
+
+
 protected:
                         TrackBase(const TrackBase&);
                         TrackBase& operator = (const TrackBase&);
@@ -153,16 +159,18 @@
                                     // openRecord(), and then adjusted as needed
 
     const audio_session_t mSessionId;
-    int                 mUid;
+    uid_t               mUid;
     Vector < sp<SyncEvent> >mSyncEvents;
     const bool          mIsOut;
-    ServerProxy*        mServerProxy;
+    sp<ServerProxy>     mServerProxy;
     const int           mId;
     sp<NBAIO_Sink>      mTeeSink;
     sp<NBAIO_Source>    mTeeSource;
     bool                mTerminated;
     track_type          mType;      // must be one of TYPE_DEFAULT, TYPE_OUTPUT, TYPE_PATCH ...
     audio_io_handle_t   mThreadIoHandle; // I/O handle of the thread the track is attached to
+    audio_port_handle_t mPortId; // unique ID for this track used by audio policy
+    bool                mIsInvalid; // non-resettable latch, set by invalidate()
 };
 
 // PatchProxyBufferProvider interface is implemented by PatchTrack and PatchRecord.
diff --git a/services/audioflinger/Tracks.cpp b/services/audioflinger/Tracks.cpp
index f18b88d..5e07e3b 100644
--- a/services/audioflinger/Tracks.cpp
+++ b/services/audioflinger/Tracks.cpp
@@ -27,12 +27,12 @@
 
 #include <private/media/AudioTrackShared.h>
 
-#include "AudioMixer.h"
 #include "AudioFlinger.h"
 #include "ServiceUtilities.h"
 
 #include <media/nbaio/Pipe.h>
 #include <media/nbaio/PipeReader.h>
+#include <media/RecordBufferConverter.h>
 #include <audio_utils/minifloat.h>
 
 // ----------------------------------------------------------------------------
@@ -52,7 +52,7 @@
 
 // TODO move to a common header  (Also shared with AudioTrack.cpp)
 #define NANOS_PER_SECOND    1000000000
-#define TIME_TO_NANOS(time) ((uint64_t)time.tv_sec * NANOS_PER_SECOND + time.tv_nsec)
+#define TIME_TO_NANOS(time) ((uint64_t)(time).tv_sec * NANOS_PER_SECOND + (time).tv_nsec)
 
 namespace android {
 
@@ -72,10 +72,11 @@
             size_t frameCount,
             void *buffer,
             audio_session_t sessionId,
-            int clientUid,
+            uid_t clientUid,
             bool isOut,
             alloc_type alloc,
-            track_type type)
+            track_type type,
+            audio_port_handle_t portId)
     :   RefBase(),
         mThread(thread),
         mClient(client),
@@ -93,17 +94,18 @@
         mFrameCount(frameCount),
         mSessionId(sessionId),
         mIsOut(isOut),
-        mServerProxy(NULL),
         mId(android_atomic_inc(&nextTrackId)),
         mTerminated(false),
         mType(type),
-        mThreadIoHandle(thread->id())
+        mThreadIoHandle(thread->id()),
+        mPortId(portId),
+        mIsInvalid(false)
 {
     const uid_t callingUid = IPCThreadState::self()->getCallingUid();
-    if (!isTrustedCallingUid(callingUid) || clientUid == -1) {
-        ALOGW_IF(clientUid != -1 && clientUid != (int)callingUid,
+    if (!isTrustedCallingUid(callingUid) || clientUid == AUDIO_UID_INVALID) {
+        ALOGW_IF(clientUid != AUDIO_UID_INVALID && clientUid != callingUid,
                 "%s uid %d tried to pass itself off as %d", __FUNCTION__, callingUid, clientUid);
-        clientUid = (int)callingUid;
+        clientUid = callingUid;
     }
     // clientUid contains the uid of the app that is responsible for this track, so we can blame
     // battery usage on it.
@@ -141,9 +143,11 @@
             return;
         }
     } else {
-        // this syntax avoids calling the audio_track_cblk_t constructor twice
-        mCblk = (audio_track_cblk_t *) new uint8_t[size];
-        // assume mCblk != NULL
+        mCblk = (audio_track_cblk_t *) malloc(size);
+        if (mCblk == NULL) {
+            ALOGE("not enough memory for AudioTrack size=%zu", size);
+            return;
+        }
     }
 
     // construct the shared structure in-place.
@@ -233,12 +237,11 @@
     dumpTee(-1, mTeeSource, mId);
 #endif
     // delete the proxy before deleting the shared memory it refers to, to avoid dangling reference
-    delete mServerProxy;
+    mServerProxy.clear();
     if (mCblk != NULL) {
+        mCblk->~audio_track_cblk_t();   // destroy our shared-structure.
         if (mClient == 0) {
-            delete mCblk;
-        } else {
-            mCblk->~audio_track_cblk_t();   // destroy our shared-structure.
+            free(mCblk);
         }
     }
     mCblkMemory.clear();    // free the shared memory before releasing the heap it belongs to
@@ -326,6 +329,16 @@
     return mTrack->setParameters(keyValuePairs);
 }
 
+VolumeShaper::Status AudioFlinger::TrackHandle::applyVolumeShaper(
+        const sp<VolumeShaper::Configuration>& configuration,
+        const sp<VolumeShaper::Operation>& operation) {
+    return mTrack->applyVolumeShaper(configuration, operation);
+}
+
+sp<VolumeShaper::State> AudioFlinger::TrackHandle::getVolumeShaperState(int id) {
+    return mTrack->getVolumeShaperState(id);
+}
+
 status_t AudioFlinger::TrackHandle::getTimestamp(AudioTimestamp& timestamp)
 {
     return mTrack->getTimestamp(timestamp);
@@ -357,14 +370,15 @@
             void *buffer,
             const sp<IMemory>& sharedBuffer,
             audio_session_t sessionId,
-            int uid,
+            uid_t uid,
             audio_output_flags_t flags,
-            track_type type)
+            track_type type,
+            audio_port_handle_t portId)
     :   TrackBase(thread, client, sampleRate, format, channelMask, frameCount,
                   (sharedBuffer != 0) ? sharedBuffer->pointer() : buffer,
                   sessionId, uid, true /*isOut*/,
                   (type == TYPE_PATCH) ? ( buffer == NULL ? ALLOC_LOCAL : ALLOC_NONE) : ALLOC_CBLK,
-                  type),
+                  type, portId),
     mFillingUpStatus(FS_INVALID),
     // mRetryCount initialized later when needed
     mSharedBuffer(sharedBuffer),
@@ -375,11 +389,10 @@
     mAuxEffectId(0), mHasVolumeController(false),
     mPresentationCompleteFrames(0),
     mFrameMap(16 /* sink-frame-to-track-frame map memory */),
+    mVolumeHandler(new VolumeHandler(sampleRate)),
     // mSinkTimestamp
     mFastIndex(-1),
     mCachedVolume(1.0),
-    mIsInvalid(false),
-    mAudioTrackServerProxy(NULL),
     mResumeToStopping(false),
     mFlushHwPending(false),
     mFlags(flags)
@@ -476,7 +489,7 @@
 /*static*/ void AudioFlinger::PlaybackThread::Track::appendDumpHeader(String8& result)
 {
     result.append("    Name Active Client Type      Fmt Chn mask Session fCount S F SRate  "
-                  "L dB  R dB    Server Main buf  Aux Buf Flags UndFrmCnt\n");
+                  "L dB  R dB    Server Main buf  Aux buf Flags UndFrmCnt  Flushed\n");
 }
 
 void AudioFlinger::PlaybackThread::Track::dump(char* buffer, size_t size, bool active)
@@ -543,7 +556,7 @@
         break;
     }
     snprintf(&buffer[8], size-8, " %6s %6u %4u %08X %08X %7u %6zu %1c %1d %5u %5.2g %5.2g  "
-                                 "%08X %p %p 0x%03X %9u%c\n",
+                                 "%08X %08zX %08zX 0x%03X %9u%c %7u\n",
             active ? "yes" : "no",
             (mClient == 0) ? getpid_cached : mClient->pid(),
             mStreamType,
@@ -557,11 +570,12 @@
             20.0 * log10(float_from_gain(gain_minifloat_unpack_left(vlr))),
             20.0 * log10(float_from_gain(gain_minifloat_unpack_right(vlr))),
             mCblk->mServer,
-            mMainBuffer,
-            mAuxBuffer,
+            (size_t)mMainBuffer, // use %zX as %p appends 0x
+            (size_t)mAuxBuffer,  // use %zX as %p appends 0x
             mCblk->mFlags,
             mAudioTrackServerProxy->getUnderrunFrames(),
-            nowInUnderrun);
+            nowInUnderrun,
+            (unsigned)mAudioTrackServerProxy->framesFlushed() % 10000000); // 7 digits
 }
 
 uint32_t AudioFlinger::PlaybackThread::Track::sampleRate() const {
@@ -887,6 +901,47 @@
     }
 }
 
+VolumeShaper::Status AudioFlinger::PlaybackThread::Track::applyVolumeShaper(
+        const sp<VolumeShaper::Configuration>& configuration,
+        const sp<VolumeShaper::Operation>& operation)
+{
+    sp<VolumeShaper::Configuration> newConfiguration;
+
+    if (isOffloadedOrDirect()) {
+        const VolumeShaper::Configuration::OptionFlag optionFlag
+            = configuration->getOptionFlags();
+        if ((optionFlag & VolumeShaper::Configuration::OPTION_FLAG_CLOCK_TIME) == 0) {
+            ALOGW("%s tracks do not support frame counted VolumeShaper,"
+                    " using clock time instead", isOffloaded() ? "Offload" : "Direct");
+            newConfiguration = new VolumeShaper::Configuration(*configuration);
+            newConfiguration->setOptionFlags(
+                VolumeShaper::Configuration::OptionFlag(optionFlag
+                        | VolumeShaper::Configuration::OPTION_FLAG_CLOCK_TIME));
+        }
+    }
+
+    VolumeShaper::Status status = mVolumeHandler->applyVolumeShaper(
+            (newConfiguration.get() != nullptr ? newConfiguration : configuration), operation);
+
+    if (isOffloadedOrDirect()) {
+        // Signal thread to fetch new volume.
+        sp<ThreadBase> thread = mThread.promote();
+        if (thread != 0) {
+             Mutex::Autolock _l(thread->mLock);
+            thread->broadcast_l();
+        }
+    }
+    return status;
+}
+
+sp<VolumeShaper::State> AudioFlinger::PlaybackThread::Track::getVolumeShaperState(int id)
+{
+    // Note: We don't check if Thread exists.
+
+    // mVolumeHandler is thread safe.
+    return mVolumeHandler->getVolumeShaperState(id);
+}
+
 status_t AudioFlinger::PlaybackThread::Track::getTimestamp(AudioTimestamp& timestamp)
 {
     if (!isOffloaded() && !isDirect()) {
@@ -1055,8 +1110,8 @@
 
 void AudioFlinger::PlaybackThread::Track::invalidate()
 {
+    TrackBase::invalidate();
     signalClientFlag(CBLK_INVALID);
-    mIsInvalid = true;
 }
 
 void AudioFlinger::PlaybackThread::Track::disable()
@@ -1155,12 +1210,12 @@
             audio_format_t format,
             audio_channel_mask_t channelMask,
             size_t frameCount,
-            int uid)
+            uid_t uid)
     :   Track(playbackThread, NULL, AUDIO_STREAM_PATCH,
               sampleRate, format, channelMask, frameCount,
               NULL, 0, AUDIO_SESSION_NONE, uid, AUDIO_OUTPUT_FLAG_NONE,
               TYPE_OUTPUT),
-    mActive(false), mSourceThread(sourceThread), mClientProxy(NULL)
+    mActive(false), mSourceThread(sourceThread)
 {
 
     if (mCblk != NULL) {
@@ -1185,7 +1240,6 @@
 AudioFlinger::PlaybackThread::OutputTrack::~OutputTrack()
 {
     clearBufferQueue();
-    delete mClientProxy;
     // superclass destructor will now delete the server proxy and shared memory both refer to
 }
 
@@ -1492,15 +1546,16 @@
             size_t frameCount,
             void *buffer,
             audio_session_t sessionId,
-            int uid,
+            uid_t uid,
             audio_input_flags_t flags,
-            track_type type)
+            track_type type,
+            audio_port_handle_t portId)
     :   TrackBase(thread, client, sampleRate, format,
                   channelMask, frameCount, buffer, sessionId, uid, false /*isOut*/,
                   (type == TYPE_DEFAULT) ?
                           ((flags & AUDIO_INPUT_FLAG_FAST) ? ALLOC_PIPE : ALLOC_CBLK) :
                           ((buffer == NULL) ? ALLOC_LOCAL : ALLOC_NONE),
-                  type),
+                  type, portId),
         mOverflow(false),
         mFramesToDrop(0),
         mResamplerBufferProvider(NULL), // initialize in case of early constructor exit
@@ -1612,6 +1667,7 @@
 
 void AudioFlinger::RecordThread::RecordTrack::invalidate()
 {
+    TrackBase::invalidate();
     // FIXME should use proxy, and needs work
     audio_track_cblk_t* cblk = mCblk;
     android_atomic_or(CBLK_INVALID, &cblk->mFlags);
@@ -1748,4 +1804,76 @@
     mProxy->releaseBuffer(buffer);
 }
 
+
+
+AudioFlinger::MmapThread::MmapTrack::MmapTrack(ThreadBase *thread,
+        uint32_t sampleRate,
+        audio_format_t format,
+        audio_channel_mask_t channelMask,
+        audio_session_t sessionId,
+        uid_t uid,
+        audio_port_handle_t portId)
+    :   TrackBase(thread, NULL, sampleRate, format,
+                  channelMask, 0, NULL, sessionId, uid, false,
+                  ALLOC_NONE,
+                  TYPE_DEFAULT, portId)
+{
+}
+
+AudioFlinger::MmapThread::MmapTrack::~MmapTrack()
+{
+}
+
+status_t AudioFlinger::MmapThread::MmapTrack::initCheck() const
+{
+    return NO_ERROR;
+}
+
+status_t AudioFlinger::MmapThread::MmapTrack::start(AudioSystem::sync_event_t event __unused,
+                                                        audio_session_t triggerSession __unused)
+{
+    return NO_ERROR;
+}
+
+void AudioFlinger::MmapThread::MmapTrack::stop()
+{
+}
+
+// AudioBufferProvider interface
+status_t AudioFlinger::MmapThread::MmapTrack::getNextBuffer(AudioBufferProvider::Buffer* buffer)
+{
+    buffer->frameCount = 0;
+    buffer->raw = nullptr;
+    return INVALID_OPERATION;
+}
+
+// ExtendedAudioBufferProvider interface
+size_t AudioFlinger::MmapThread::MmapTrack::framesReady() const {
+    return 0;
+}
+
+int64_t AudioFlinger::MmapThread::MmapTrack::framesReleased() const
+{
+    return 0;
+}
+
+void AudioFlinger::MmapThread::MmapTrack::onTimestamp(const ExtendedTimestamp &timestamp __unused)
+{
+}
+
+/*static*/ void AudioFlinger::MmapThread::MmapTrack::appendDumpHeader(String8& result)
+{
+    result.append("    Client Fmt Chn mask  SRate\n");
+}
+
+void AudioFlinger::MmapThread::MmapTrack::dump(char* buffer, size_t size)
+{
+    snprintf(buffer, size, "            %6u %3u    %08X %5u\n",
+            mUid,
+            mFormat,
+            mChannelMask,
+            mSampleRate);
+
+}
+
 } // namespace android
diff --git a/services/audioflinger/TypedLogger.cpp b/services/audioflinger/TypedLogger.cpp
new file mode 100644
index 0000000..e08f6f6
--- /dev/null
+++ b/services/audioflinger/TypedLogger.cpp
@@ -0,0 +1,27 @@
+/*
+ *
+ * Copyright 2017, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "AudioFlinger"
+//#define LOG_NDEBUG 0
+#include <utils/Log.h>
+
+#include <pthread.h>
+#include "TypedLogger.h"
+
+namespace android {
+thread_local NBLog::Writer *logWriterTLS;
+}
diff --git a/services/audioflinger/TypedLogger.h b/services/audioflinger/TypedLogger.h
new file mode 100644
index 0000000..0b23c7c
--- /dev/null
+++ b/services/audioflinger/TypedLogger.h
@@ -0,0 +1,30 @@
+/*
+ *
+ * Copyright 2017, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_TYPED_LOGGER_H
+#define ANDROID_TYPED_LOGGER_H
+
+#include <media/nbaio/NBLog.h>
+#define LOGT(fmt, ...) logWriterTLS->logFormat(fmt, ##__VA_ARGS__) // TODO: check null pointer
+
+namespace android {
+extern "C" {
+extern thread_local NBLog::Writer *logWriterTLS;
+}
+} // namespace android
+
+#endif // ANDROID_TYPED_LOGGER_H
diff --git a/services/audioflinger/test-resample.cpp b/services/audioflinger/test-resample.cpp
deleted file mode 100644
index bae3c5b..0000000
--- a/services/audioflinger/test-resample.cpp
+++ /dev/null
@@ -1,515 +0,0 @@
-/*
- * Copyright (C) 2012 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <unistd.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <fcntl.h>
-#include <string.h>
-#include <sys/mman.h>
-#include <sys/stat.h>
-#include <errno.h>
-#include <inttypes.h>
-#include <time.h>
-#include <math.h>
-#include <audio_utils/primitives.h>
-#include <audio_utils/sndfile.h>
-#include <utils/Vector.h>
-#include <media/AudioBufferProvider.h>
-#include "AudioResampler.h"
-
-using namespace android;
-
-static bool gVerbose = false;
-
-static int usage(const char* name) {
-    fprintf(stderr,"Usage: %s [-p] [-f] [-F] [-v] [-c channels]"
-                   " [-q {dq|lq|mq|hq|vhq|dlq|dmq|dhq}]"
-                   " [-i input-sample-rate] [-o output-sample-rate]"
-                   " [-O csv] [-P csv] [<input-file>]"
-                   " <output-file>\n", name);
-    fprintf(stderr,"    -p    enable profiling\n");
-    fprintf(stderr,"    -f    enable filter profiling\n");
-    fprintf(stderr,"    -F    enable floating point -q {dlq|dmq|dhq} only");
-    fprintf(stderr,"    -v    verbose : log buffer provider calls\n");
-    fprintf(stderr,"    -c    # channels (1-2 for lq|mq|hq; 1-8 for dlq|dmq|dhq)\n");
-    fprintf(stderr,"    -q    resampler quality\n");
-    fprintf(stderr,"              dq  : default quality\n");
-    fprintf(stderr,"              lq  : low quality\n");
-    fprintf(stderr,"              mq  : medium quality\n");
-    fprintf(stderr,"              hq  : high quality\n");
-    fprintf(stderr,"              vhq : very high quality\n");
-    fprintf(stderr,"              dlq : dynamic low quality\n");
-    fprintf(stderr,"              dmq : dynamic medium quality\n");
-    fprintf(stderr,"              dhq : dynamic high quality\n");
-    fprintf(stderr,"    -i    input file sample rate (ignored if input file is specified)\n");
-    fprintf(stderr,"    -o    output file sample rate\n");
-    fprintf(stderr,"    -O    # frames output per call to resample() in CSV format\n");
-    fprintf(stderr,"    -P    # frames provided per call to resample() in CSV format\n");
-    return -1;
-}
-
-// Convert a list of integers in CSV format to a Vector of those values.
-// Returns the number of elements in the list, or -1 on error.
-int parseCSV(const char *string, Vector<int>& values)
-{
-    // pass 1: count the number of values and do syntax check
-    size_t numValues = 0;
-    bool hadDigit = false;
-    for (const char *p = string; ; ) {
-        switch (*p++) {
-        case '0': case '1': case '2': case '3': case '4':
-        case '5': case '6': case '7': case '8': case '9':
-            hadDigit = true;
-            break;
-        case '\0':
-            if (hadDigit) {
-                // pass 2: allocate and initialize vector of values
-                values.resize(++numValues);
-                values.editItemAt(0) = atoi(p = optarg);
-                for (size_t i = 1; i < numValues; ) {
-                    if (*p++ == ',') {
-                        values.editItemAt(i++) = atoi(p);
-                    }
-                }
-                return numValues;
-            }
-            // fall through
-        case ',':
-            if (hadDigit) {
-                hadDigit = false;
-                numValues++;
-                break;
-            }
-            // fall through
-        default:
-            return -1;
-        }
-    }
-}
-
-int main(int argc, char* argv[]) {
-    const char* const progname = argv[0];
-    bool profileResample = false;
-    bool profileFilter = false;
-    bool useFloat = false;
-    int channels = 1;
-    int input_freq = 0;
-    int output_freq = 0;
-    AudioResampler::src_quality quality = AudioResampler::DEFAULT_QUALITY;
-    Vector<int> Ovalues;
-    Vector<int> Pvalues;
-
-    int ch;
-    while ((ch = getopt(argc, argv, "pfFvc:q:i:o:O:P:")) != -1) {
-        switch (ch) {
-        case 'p':
-            profileResample = true;
-            break;
-        case 'f':
-            profileFilter = true;
-            break;
-        case 'F':
-            useFloat = true;
-            break;
-        case 'v':
-            gVerbose = true;
-            break;
-        case 'c':
-            channels = atoi(optarg);
-            break;
-        case 'q':
-            if (!strcmp(optarg, "dq"))
-                quality = AudioResampler::DEFAULT_QUALITY;
-            else if (!strcmp(optarg, "lq"))
-                quality = AudioResampler::LOW_QUALITY;
-            else if (!strcmp(optarg, "mq"))
-                quality = AudioResampler::MED_QUALITY;
-            else if (!strcmp(optarg, "hq"))
-                quality = AudioResampler::HIGH_QUALITY;
-            else if (!strcmp(optarg, "vhq"))
-                quality = AudioResampler::VERY_HIGH_QUALITY;
-            else if (!strcmp(optarg, "dlq"))
-                quality = AudioResampler::DYN_LOW_QUALITY;
-            else if (!strcmp(optarg, "dmq"))
-                quality = AudioResampler::DYN_MED_QUALITY;
-            else if (!strcmp(optarg, "dhq"))
-                quality = AudioResampler::DYN_HIGH_QUALITY;
-            else {
-                usage(progname);
-                return -1;
-            }
-            break;
-        case 'i':
-            input_freq = atoi(optarg);
-            break;
-        case 'o':
-            output_freq = atoi(optarg);
-            break;
-        case 'O':
-            if (parseCSV(optarg, Ovalues) < 0) {
-                fprintf(stderr, "incorrect syntax for -O option\n");
-                return -1;
-            }
-            break;
-        case 'P':
-            if (parseCSV(optarg, Pvalues) < 0) {
-                fprintf(stderr, "incorrect syntax for -P option\n");
-                return -1;
-            }
-            break;
-        case '?':
-        default:
-            usage(progname);
-            return -1;
-        }
-    }
-
-    if (channels < 1
-            || channels > (quality < AudioResampler::DYN_LOW_QUALITY ? 2 : 8)) {
-        fprintf(stderr, "invalid number of audio channels %d\n", channels);
-        return -1;
-    }
-    if (useFloat && quality < AudioResampler::DYN_LOW_QUALITY) {
-        fprintf(stderr, "float processing is only possible for dynamic resamplers\n");
-        return -1;
-    }
-
-    argc -= optind;
-    argv += optind;
-
-    const char* file_in = NULL;
-    const char* file_out = NULL;
-    if (argc == 1) {
-        file_out = argv[0];
-    } else if (argc == 2) {
-        file_in = argv[0];
-        file_out = argv[1];
-    } else {
-        usage(progname);
-        return -1;
-    }
-
-    // ----------------------------------------------------------
-
-    size_t input_size;
-    void* input_vaddr;
-    if (argc == 2) {
-        SF_INFO info;
-        info.format = 0;
-        SNDFILE *sf = sf_open(file_in, SFM_READ, &info);
-        if (sf == NULL) {
-            perror(file_in);
-            return EXIT_FAILURE;
-        }
-        input_size = info.frames * info.channels * sizeof(short);
-        input_vaddr = malloc(input_size);
-        (void) sf_readf_short(sf, (short *) input_vaddr, info.frames);
-        sf_close(sf);
-        channels = info.channels;
-        input_freq = info.samplerate;
-    } else {
-        // data for testing is exactly (input sampling rate/1000)/2 seconds
-        // so 44.1khz input is 22.05 seconds
-        double k = 1000; // Hz / s
-        double time = (input_freq / 2) / k;
-        size_t input_frames = size_t(input_freq * time);
-        input_size = channels * sizeof(int16_t) * input_frames;
-        input_vaddr = malloc(input_size);
-        int16_t* in = (int16_t*)input_vaddr;
-        for (size_t i=0 ; i<input_frames ; i++) {
-            double t = double(i) / input_freq;
-            double y = sin(M_PI * k * t * t);
-            int16_t yi = floor(y * 32767.0 + 0.5);
-            for (int j = 0; j < channels; j++) {
-                in[i*channels + j] = yi / (1 + j);
-            }
-        }
-    }
-    size_t input_framesize = channels * sizeof(int16_t);
-    size_t input_frames = input_size / input_framesize;
-
-    // For float processing, convert input int16_t to float array
-    if (useFloat) {
-        void *new_vaddr;
-
-        input_framesize = channels * sizeof(float);
-        input_size = input_frames * input_framesize;
-        new_vaddr = malloc(input_size);
-        memcpy_to_float_from_i16(reinterpret_cast<float*>(new_vaddr),
-                reinterpret_cast<int16_t*>(input_vaddr), input_frames * channels);
-        free(input_vaddr);
-        input_vaddr = new_vaddr;
-    }
-
-    // ----------------------------------------------------------
-
-    class Provider: public AudioBufferProvider {
-        const void*     mAddr;      // base address
-        const size_t    mNumFrames; // total frames
-        const size_t    mFrameSize; // size of each frame in bytes
-        size_t          mNextFrame; // index of next frame to provide
-        size_t          mUnrel;     // number of frames not yet released
-        const Vector<int> mPvalues; // number of frames provided per call
-        size_t          mNextPidx;  // index of next entry in mPvalues to use
-    public:
-        Provider(const void* addr, size_t frames, size_t frameSize, const Vector<int>& Pvalues)
-          : mAddr(addr),
-            mNumFrames(frames),
-            mFrameSize(frameSize),
-            mNextFrame(0), mUnrel(0), mPvalues(Pvalues), mNextPidx(0) {
-        }
-        virtual status_t getNextBuffer(Buffer* buffer) {
-            size_t requestedFrames = buffer->frameCount;
-            if (requestedFrames > mNumFrames - mNextFrame) {
-                buffer->frameCount = mNumFrames - mNextFrame;
-            }
-            if (!mPvalues.isEmpty()) {
-                size_t provided = mPvalues[mNextPidx++];
-                printf("mPvalue[%zu]=%zu not %zu\n", mNextPidx-1, provided, buffer->frameCount);
-                if (provided < buffer->frameCount) {
-                    buffer->frameCount = provided;
-                }
-                if (mNextPidx >= mPvalues.size()) {
-                    mNextPidx = 0;
-                }
-            }
-            if (gVerbose) {
-                printf("getNextBuffer() requested %zu frames out of %zu frames available,"
-                        " and returned %zu frames\n",
-                        requestedFrames, (size_t) (mNumFrames - mNextFrame), buffer->frameCount);
-            }
-            mUnrel = buffer->frameCount;
-            if (buffer->frameCount > 0) {
-                buffer->raw = (char *)mAddr + mFrameSize * mNextFrame;
-                return NO_ERROR;
-            } else {
-                buffer->raw = NULL;
-                return NOT_ENOUGH_DATA;
-            }
-        }
-        virtual void releaseBuffer(Buffer* buffer) {
-            if (buffer->frameCount > mUnrel) {
-                fprintf(stderr, "ERROR releaseBuffer() released %zu frames but only %zu available "
-                        "to release\n", buffer->frameCount, mUnrel);
-                mNextFrame += mUnrel;
-                mUnrel = 0;
-            } else {
-                if (gVerbose) {
-                    printf("releaseBuffer() released %zu frames out of %zu frames available "
-                            "to release\n", buffer->frameCount, mUnrel);
-                }
-                mNextFrame += buffer->frameCount;
-                mUnrel -= buffer->frameCount;
-            }
-            buffer->frameCount = 0;
-            buffer->raw = NULL;
-        }
-        void reset() {
-            mNextFrame = 0;
-        }
-    } provider(input_vaddr, input_frames, input_framesize, Pvalues);
-
-    if (gVerbose) {
-        printf("%zu input frames\n", input_frames);
-    }
-
-    audio_format_t format = useFloat ? AUDIO_FORMAT_PCM_FLOAT : AUDIO_FORMAT_PCM_16_BIT;
-    int output_channels = channels > 2 ? channels : 2; // output is at least stereo samples
-    size_t output_framesize = output_channels * (useFloat ? sizeof(float) : sizeof(int32_t));
-    size_t output_frames = ((int64_t) input_frames * output_freq) / input_freq;
-    size_t output_size = output_frames * output_framesize;
-
-    if (profileFilter) {
-        // Check how fast sample rate changes are that require filter changes.
-        // The delta sample rate changes must indicate a downsampling ratio,
-        // and must be larger than 10% changes.
-        //
-        // On fast devices, filters should be generated between 0.1ms - 1ms.
-        // (single threaded).
-        AudioResampler* resampler = AudioResampler::create(format, channels,
-                8000, quality);
-        int looplimit = 100;
-        timespec start, end;
-        clock_gettime(CLOCK_MONOTONIC, &start);
-        for (int i = 0; i < looplimit; ++i) {
-            resampler->setSampleRate(9000);
-            resampler->setSampleRate(12000);
-            resampler->setSampleRate(20000);
-            resampler->setSampleRate(30000);
-        }
-        clock_gettime(CLOCK_MONOTONIC, &end);
-        int64_t start_ns = start.tv_sec * 1000000000LL + start.tv_nsec;
-        int64_t end_ns = end.tv_sec * 1000000000LL + end.tv_nsec;
-        int64_t time = end_ns - start_ns;
-        printf("%.2f sample rate changes with filter calculation/sec\n",
-                looplimit * 4 / (time / 1e9));
-
-        // Check how fast sample rate changes are without filter changes.
-        // This should be very fast, probably 0.1us - 1us per sample rate
-        // change.
-        resampler->setSampleRate(1000);
-        looplimit = 1000;
-        clock_gettime(CLOCK_MONOTONIC, &start);
-        for (int i = 0; i < looplimit; ++i) {
-            resampler->setSampleRate(1000+i);
-        }
-        clock_gettime(CLOCK_MONOTONIC, &end);
-        start_ns = start.tv_sec * 1000000000LL + start.tv_nsec;
-        end_ns = end.tv_sec * 1000000000LL + end.tv_nsec;
-        time = end_ns - start_ns;
-        printf("%.2f sample rate changes without filter calculation/sec\n",
-                looplimit / (time / 1e9));
-        resampler->reset();
-        delete resampler;
-    }
-
-    void* output_vaddr = malloc(output_size);
-    AudioResampler* resampler = AudioResampler::create(format, channels,
-            output_freq, quality);
-
-    resampler->setSampleRate(input_freq);
-    resampler->setVolume(AudioResampler::UNITY_GAIN_FLOAT, AudioResampler::UNITY_GAIN_FLOAT);
-
-    if (profileResample) {
-        /*
-         * For profiling on mobile devices, upon experimentation
-         * it is better to run a few trials with a shorter loop limit,
-         * and take the minimum time.
-         *
-         * Long tests can cause CPU temperature to build up and thermal throttling
-         * to reduce CPU frequency.
-         *
-         * For frequency checks (index=0, or 1, etc.):
-         * "cat /sys/devices/system/cpu/cpu${index}/cpufreq/scaling_*_freq"
-         *
-         * For temperature checks (index=0, or 1, etc.):
-         * "cat /sys/class/thermal/thermal_zone${index}/temp"
-         *
-         * Another way to avoid thermal throttling is to fix the CPU frequency
-         * at a lower level which prevents excessive temperatures.
-         */
-        const int trials = 4;
-        const int looplimit = 4;
-        timespec start, end;
-        int64_t time = 0;
-
-        for (int n = 0; n < trials; ++n) {
-            clock_gettime(CLOCK_MONOTONIC, &start);
-            for (int i = 0; i < looplimit; ++i) {
-                resampler->resample((int*) output_vaddr, output_frames, &provider);
-                provider.reset(); //  during benchmarking reset only the provider
-            }
-            clock_gettime(CLOCK_MONOTONIC, &end);
-            int64_t start_ns = start.tv_sec * 1000000000LL + start.tv_nsec;
-            int64_t end_ns = end.tv_sec * 1000000000LL + end.tv_nsec;
-            int64_t diff_ns = end_ns - start_ns;
-            if (n == 0 || diff_ns < time) {
-                time = diff_ns;   // save the best out of our trials.
-            }
-        }
-        // Mfrms/s is "Millions of output frames per second".
-        printf("quality: %d  channels: %d  msec: %" PRId64 "  Mfrms/s: %.2lf\n",
-                quality, channels, time/1000000, output_frames * looplimit / (time / 1e9) / 1e6);
-        resampler->reset();
-
-        // TODO fix legacy bug: reset does not clear buffers.
-        // delete and recreate resampler here.
-        delete resampler;
-        resampler = AudioResampler::create(format, channels,
-                    output_freq, quality);
-        resampler->setSampleRate(input_freq);
-        resampler->setVolume(AudioResampler::UNITY_GAIN_FLOAT, AudioResampler::UNITY_GAIN_FLOAT);
-    }
-
-    memset(output_vaddr, 0, output_size);
-    if (gVerbose) {
-        printf("resample() %zu output frames\n", output_frames);
-    }
-    if (Ovalues.isEmpty()) {
-        Ovalues.push(output_frames);
-    }
-    for (size_t i = 0, j = 0; i < output_frames; ) {
-        size_t thisFrames = Ovalues[j++];
-        if (j >= Ovalues.size()) {
-            j = 0;
-        }
-        if (thisFrames == 0 || thisFrames > output_frames - i) {
-            thisFrames = output_frames - i;
-        }
-        resampler->resample((int*) output_vaddr + output_channels*i, thisFrames, &provider);
-        i += thisFrames;
-    }
-    if (gVerbose) {
-        printf("resample() complete\n");
-    }
-    resampler->reset();
-    if (gVerbose) {
-        printf("reset() complete\n");
-    }
-    delete resampler;
-    resampler = NULL;
-
-    // For float processing, convert output format from float to Q4.27,
-    // which is then converted to int16_t for final storage.
-    if (useFloat) {
-        memcpy_to_q4_27_from_float(reinterpret_cast<int32_t*>(output_vaddr),
-                reinterpret_cast<float*>(output_vaddr), output_frames * output_channels);
-    }
-
-    // mono takes left channel only (out of stereo output pair)
-    // stereo and multichannel preserve all channels.
-    int32_t* out = (int32_t*) output_vaddr;
-    int16_t* convert = (int16_t*) malloc(output_frames * channels * sizeof(int16_t));
-
-    const int volumeShift = 12; // shift requirement for Q4.27 to Q.15
-    // round to half towards zero and saturate at int16 (non-dithered)
-    const int roundVal = (1<<(volumeShift-1)) - 1; // volumePrecision > 0
-
-    for (size_t i = 0; i < output_frames; i++) {
-        for (int j = 0; j < channels; j++) {
-            int32_t s = out[i * output_channels + j] + roundVal; // add offset here
-            if (s < 0) {
-                s = (s + 1) >> volumeShift; // round to 0
-                if (s < -32768) {
-                    s = -32768;
-                }
-            } else {
-                s = s >> volumeShift;
-                if (s > 32767) {
-                    s = 32767;
-                }
-            }
-            convert[i * channels + j] = int16_t(s);
-        }
-    }
-
-    // write output to disk
-    SF_INFO info;
-    info.frames = 0;
-    info.samplerate = output_freq;
-    info.channels = channels;
-    info.format = SF_FORMAT_WAV | SF_FORMAT_PCM_16;
-    SNDFILE *sf = sf_open(file_out, SFM_WRITE, &info);
-    if (sf == NULL) {
-        perror(file_out);
-        return EXIT_FAILURE;
-    }
-    (void) sf_writef_short(sf, convert, output_frames);
-    sf_close(sf);
-
-    return EXIT_SUCCESS;
-}
diff --git a/services/audioflinger/tests/Android.mk b/services/audioflinger/tests/Android.mk
deleted file mode 100644
index 3505e0f..0000000
--- a/services/audioflinger/tests/Android.mk
+++ /dev/null
@@ -1,68 +0,0 @@
-# Build the unit tests for audioflinger
-
-#
-# resampler unit test
-#
-LOCAL_PATH:= $(call my-dir)
-include $(CLEAR_VARS)
-
-LOCAL_SHARED_LIBRARIES := \
-	liblog \
-	libutils \
-	libcutils \
-	libaudioutils \
-	libaudioresampler
-
-LOCAL_C_INCLUDES := \
-	$(call include-path-for, audio-utils) \
-	frameworks/av/services/audioflinger
-
-LOCAL_SRC_FILES := \
-	resampler_tests.cpp
-
-LOCAL_MODULE := resampler_tests
-LOCAL_MODULE_TAGS := tests
-
-LOCAL_CFLAGS := -Werror -Wall
-
-include $(BUILD_NATIVE_TEST)
-
-#
-# audio mixer test tool
-#
-include $(CLEAR_VARS)
-
-LOCAL_SRC_FILES:= \
-	test-mixer.cpp \
-	../AudioMixer.cpp.arm \
-	../BufferProviders.cpp
-
-LOCAL_C_INCLUDES := \
-	$(call include-path-for, audio-effects) \
-	$(call include-path-for, audio-utils) \
-	frameworks/av/services/audioflinger \
-	external/sonic
-
-LOCAL_STATIC_LIBRARIES := \
-	libsndfile
-
-LOCAL_SHARED_LIBRARIES := \
-	libeffects \
-	libnbaio \
-	libaudioresampler \
-	libaudioutils \
-	libdl \
-	libcutils \
-	libutils \
-	liblog \
-	libsonic
-
-LOCAL_MODULE:= test-mixer
-
-LOCAL_MODULE_TAGS := optional
-
-LOCAL_CXX_STL := libc++
-
-LOCAL_CFLAGS := -Werror -Wall
-
-include $(BUILD_EXECUTABLE)
diff --git a/services/audioflinger/tests/README b/services/audioflinger/tests/README
deleted file mode 100644
index 508e960..0000000
--- a/services/audioflinger/tests/README
+++ /dev/null
@@ -1,13 +0,0 @@
-For libsonic dependency:
-pushd external/sonic
-mm
-popd
-
-To build resampler library:
-pushd ..
-Optionally uncomment USE_NEON=false in Android.mk
-mm
-popd
-
-Then build here:
-mm
diff --git a/services/audioflinger/tests/build_and_run_all_unit_tests.sh b/services/audioflinger/tests/build_and_run_all_unit_tests.sh
deleted file mode 100755
index 7f4d456..0000000
--- a/services/audioflinger/tests/build_and_run_all_unit_tests.sh
+++ /dev/null
@@ -1,22 +0,0 @@
-#!/bin/bash
-
-if [ -z "$ANDROID_BUILD_TOP" ]; then
-    echo "Android build environment not set"
-    exit -1
-fi
-
-# ensure we have mm
-. $ANDROID_BUILD_TOP/build/envsetup.sh
-
-pushd $ANDROID_BUILD_TOP/frameworks/av/services/audioflinger/
-pwd
-mm
-
-echo "waiting for device"
-adb root && adb wait-for-device remount
-adb push $OUT/system/lib/libaudioresampler.so /system/lib
-adb push $OUT/data/nativetest/resampler_tests /system/bin
-
-sh $ANDROID_BUILD_TOP/frameworks/av/services/audioflinger/tests/run_all_unit_tests.sh
-
-popd
diff --git a/services/audioflinger/tests/mixer_to_wav_tests.sh b/services/audioflinger/tests/mixer_to_wav_tests.sh
deleted file mode 100755
index d0482a1..0000000
--- a/services/audioflinger/tests/mixer_to_wav_tests.sh
+++ /dev/null
@@ -1,144 +0,0 @@
-#!/bin/bash
-#
-# This script uses test-mixer to generate WAV files
-# for evaluation of the AudioMixer component.
-#
-# Sine and chirp signals are used for input because they
-# show up as clear lines, either horizontal or diagonal,
-# on a spectrogram. This means easy verification of multiple
-# track mixing.
-#
-# After execution, look for created subdirectories like
-# mixer_i_i
-# mixer_i_f
-# mixer_f_f
-#
-# Recommend using a program such as audacity to evaluate
-# the output WAV files, e.g.
-#
-# cd testdir
-# audacity *.wav
-#
-# Using Audacity:
-#
-# Under "Waveform" view mode you can zoom into the
-# start of the WAV file to verify proper ramping.
-#
-# Select "Spectrogram" to see verify the lines
-# (sine = horizontal, chirp = diagonal) which should
-# be clear (except for around the start as the volume
-# ramping causes spectral distortion).
-
-if [ -z "$ANDROID_BUILD_TOP" ]; then
-    echo "Android build environment not set"
-    exit -1
-fi
-
-# ensure we have mm
-. $ANDROID_BUILD_TOP/build/envsetup.sh
-
-pushd $ANDROID_BUILD_TOP/frameworks/av/services/audioflinger/
-
-# build
-pwd
-mm
-
-# send to device
-echo "waiting for device"
-adb root && adb wait-for-device remount
-adb push $OUT/system/lib/libaudioresampler.so /system/lib
-adb push $OUT/system/bin/test-mixer /system/bin
-
-# createwav creates a series of WAV files testing various
-# mixer settings
-# $1 = flags
-# $2 = directory
-function createwav() {
-# create directory if it doesn't exist
-    if [ ! -d $2 ]; then
-        mkdir $2
-    fi
-
-# Test:
-# process__genericResampling with mixed integer and float track input
-# track__Resample / track__genericResample
-    adb shell test-mixer $1 -s 48000 \
-        -o /sdcard/tm48000grif.wav \
-        sine:2,4000,7520 chirp:2,9200 sine:1,3000,18000 \
-        sine:f,6,6000,19000  chirp:i,4,30000
-    adb pull /sdcard/tm48000grif.wav $2
-
-# Test:
-# process__genericResampling
-# track__Resample / track__genericResample
-    adb shell test-mixer $1 -s 48000 \
-        -o /sdcard/tm48000gr.wav \
-        sine:2,4000,7520 chirp:2,9200 sine:1,3000,18000 \
-        sine:6,6000,19000
-    adb pull /sdcard/tm48000gr.wav $2
-
-# Test:
-# process__genericResample
-# track__Resample / track__genericResample
-# track__NoResample / track__16BitsStereo / track__16BitsMono
-# Aux buffer
-    adb shell test-mixer $1 -c 5 -s 9307 \
-        -a /sdcard/aux9307gra.wav -o /sdcard/tm9307gra.wav \
-        sine:4,1000,3000 sine:1,2000,9307 chirp:3,9307
-    adb pull /sdcard/tm9307gra.wav $2
-    adb pull /sdcard/aux9307gra.wav $2
-
-# Test:
-# process__genericNoResampling
-# track__NoResample / track__16BitsStereo / track__16BitsMono
-    adb shell test-mixer $1 -s 32000 \
-        -o /sdcard/tm32000gnr.wav \
-        sine:2,1000,32000 chirp:2,32000  sine:1,3000,32000
-    adb pull /sdcard/tm32000gnr.wav $2
-
-# Test:
-# process__genericNoResampling
-# track__NoResample / track__16BitsStereo / track__16BitsMono
-# Aux buffer
-    adb shell test-mixer $1 -s 32000 \
-        -a /sdcard/aux32000gnra.wav -o /sdcard/tm32000gnra.wav \
-        sine:2,1000,32000 chirp:2,32000  sine:1,3000,32000
-    adb pull /sdcard/tm32000gnra.wav $2
-    adb pull /sdcard/aux32000gnra.wav $2
-
-# Test:
-# process__NoResampleOneTrack / process__OneTrack16BitsStereoNoResampling
-# Downmixer
-    adb shell test-mixer $1 -s 32000 \
-        -o /sdcard/tm32000nrot.wav \
-        sine:6,1000,32000
-    adb pull /sdcard/tm32000nrot.wav $2
-
-# Test:
-# process__NoResampleOneTrack / OneTrack16BitsStereoNoResampling
-# Aux buffer
-    adb shell test-mixer $1 -s 44100 \
-        -a /sdcard/aux44100nrota.wav -o /sdcard/tm44100nrota.wav \
-        sine:2,2000,44100
-    adb pull /sdcard/tm44100nrota.wav $2
-    adb pull /sdcard/aux44100nrota.wav $2
-}
-
-#
-# Call createwav to generate WAV files in various combinations
-#
-# i_i = integer input track, integer mixer output
-# f_f = float input track,   float mixer output
-# i_f = integer input track, float_mixer output
-#
-# If the mixer output is float, then the output WAV file is pcm float.
-#
-# TODO: create a "snr" like "diff" to automatically
-# compare files in these directories together.
-#
-
-createwav "" "tests/mixer_i_i"
-createwav "-f -m" "tests/mixer_f_f"
-createwav "-m" "tests/mixer_i_f"
-
-popd
diff --git a/services/audioflinger/tests/resampler_tests.cpp b/services/audioflinger/tests/resampler_tests.cpp
deleted file mode 100644
index b0d384d..0000000
--- a/services/audioflinger/tests/resampler_tests.cpp
+++ /dev/null
@@ -1,417 +0,0 @@
-/*
- * Copyright (C) 2014 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-//#define LOG_NDEBUG 0
-#define LOG_TAG "audioflinger_resampler_tests"
-
-#include <errno.h>
-#include <fcntl.h>
-#include <math.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/mman.h>
-#include <sys/stat.h>
-#include <time.h>
-#include <unistd.h>
-
-#include <iostream>
-#include <utility>
-#include <vector>
-
-#include <gtest/gtest.h>
-#include <log/log.h>
-#include <media/AudioBufferProvider.h>
-
-#include "AudioResampler.h"
-#include "test_utils.h"
-
-void resample(int channels, void *output,
-        size_t outputFrames, const std::vector<size_t> &outputIncr,
-        android::AudioBufferProvider *provider, android::AudioResampler *resampler)
-{
-    for (size_t i = 0, j = 0; i < outputFrames; ) {
-        size_t thisFrames = outputIncr[j++];
-        if (j >= outputIncr.size()) {
-            j = 0;
-        }
-        if (thisFrames == 0 || thisFrames > outputFrames - i) {
-            thisFrames = outputFrames - i;
-        }
-        size_t framesResampled = resampler->resample(
-                (int32_t*) output + channels*i, thisFrames, provider);
-        // we should have enough buffer space, so there is no short count.
-        ASSERT_EQ(thisFrames, framesResampled);
-        i += thisFrames;
-    }
-}
-
-void buffercmp(const void *reference, const void *test,
-        size_t outputFrameSize, size_t outputFrames)
-{
-    for (size_t i = 0; i < outputFrames; ++i) {
-        int check = memcmp((const char*)reference + i * outputFrameSize,
-                (const char*)test + i * outputFrameSize, outputFrameSize);
-        if (check) {
-            ALOGE("Failure at frame %zu", i);
-            ASSERT_EQ(check, 0); /* fails */
-        }
-    }
-}
-
-void testBufferIncrement(size_t channels, bool useFloat,
-        unsigned inputFreq, unsigned outputFreq,
-        enum android::AudioResampler::src_quality quality)
-{
-    const audio_format_t format = useFloat ? AUDIO_FORMAT_PCM_FLOAT : AUDIO_FORMAT_PCM_16_BIT;
-    // create the provider
-    std::vector<int> inputIncr;
-    SignalProvider provider;
-    if (useFloat) {
-        provider.setChirp<float>(channels,
-                0., outputFreq/2., outputFreq, outputFreq/2000.);
-    } else {
-        provider.setChirp<int16_t>(channels,
-                0., outputFreq/2., outputFreq, outputFreq/2000.);
-    }
-    provider.setIncr(inputIncr);
-
-    // calculate the output size
-    size_t outputFrames = ((int64_t) provider.getNumFrames() * outputFreq) / inputFreq;
-    size_t outputFrameSize = channels * (useFloat ? sizeof(float) : sizeof(int32_t));
-    size_t outputSize = outputFrameSize * outputFrames;
-    outputSize &= ~7;
-
-    // create the resampler
-    android::AudioResampler* resampler;
-
-    resampler = android::AudioResampler::create(format, channels, outputFreq, quality);
-    resampler->setSampleRate(inputFreq);
-    resampler->setVolume(android::AudioResampler::UNITY_GAIN_FLOAT,
-            android::AudioResampler::UNITY_GAIN_FLOAT);
-
-    // set up the reference run
-    std::vector<size_t> refIncr;
-    refIncr.push_back(outputFrames);
-    void* reference = malloc(outputSize);
-    resample(channels, reference, outputFrames, refIncr, &provider, resampler);
-
-    provider.reset();
-
-#if 0
-    /* this test will fail - API interface issue: reset() does not clear internal buffers */
-    resampler->reset();
-#else
-    delete resampler;
-    resampler = android::AudioResampler::create(format, channels, outputFreq, quality);
-    resampler->setSampleRate(inputFreq);
-    resampler->setVolume(android::AudioResampler::UNITY_GAIN_FLOAT,
-            android::AudioResampler::UNITY_GAIN_FLOAT);
-#endif
-
-    // set up the test run
-    std::vector<size_t> outIncr;
-    outIncr.push_back(1);
-    outIncr.push_back(2);
-    outIncr.push_back(3);
-    void* test = malloc(outputSize);
-    inputIncr.push_back(1);
-    inputIncr.push_back(3);
-    provider.setIncr(inputIncr);
-    resample(channels, test, outputFrames, outIncr, &provider, resampler);
-
-    // check
-    buffercmp(reference, test, outputFrameSize, outputFrames);
-
-    free(reference);
-    free(test);
-    delete resampler;
-}
-
-template <typename T>
-inline double sqr(T v)
-{
-    double dv = static_cast<double>(v);
-    return dv * dv;
-}
-
-template <typename T>
-double signalEnergy(T *start, T *end, unsigned stride)
-{
-    double accum = 0;
-
-    for (T *p = start; p < end; p += stride) {
-        accum += sqr(*p);
-    }
-    unsigned count = (end - start + stride - 1) / stride;
-    return accum / count;
-}
-
-// TI = resampler input type, int16_t or float
-// TO = resampler output type, int32_t or float
-template <typename TI, typename TO>
-void testStopbandDownconversion(size_t channels,
-        unsigned inputFreq, unsigned outputFreq,
-        unsigned passband, unsigned stopband,
-        enum android::AudioResampler::src_quality quality)
-{
-    // create the provider
-    std::vector<int> inputIncr;
-    SignalProvider provider;
-    provider.setChirp<TI>(channels,
-            0., inputFreq/2., inputFreq, inputFreq/2000.);
-    provider.setIncr(inputIncr);
-
-    // calculate the output size
-    size_t outputFrames = ((int64_t) provider.getNumFrames() * outputFreq) / inputFreq;
-    size_t outputFrameSize = channels * sizeof(TO);
-    size_t outputSize = outputFrameSize * outputFrames;
-    outputSize &= ~7;
-
-    // create the resampler
-    android::AudioResampler* resampler;
-
-    resampler = android::AudioResampler::create(
-            is_same<TI, int16_t>::value ? AUDIO_FORMAT_PCM_16_BIT : AUDIO_FORMAT_PCM_FLOAT,
-            channels, outputFreq, quality);
-    resampler->setSampleRate(inputFreq);
-    resampler->setVolume(android::AudioResampler::UNITY_GAIN_FLOAT,
-            android::AudioResampler::UNITY_GAIN_FLOAT);
-
-    // set up the reference run
-    std::vector<size_t> refIncr;
-    refIncr.push_back(outputFrames);
-    void* reference = malloc(outputSize);
-    resample(channels, reference, outputFrames, refIncr, &provider, resampler);
-
-    TO *out = reinterpret_cast<TO *>(reference);
-
-    // check signal energy in passband
-    const unsigned passbandFrame = passband * outputFreq / 1000.;
-    const unsigned stopbandFrame = stopband * outputFreq / 1000.;
-
-    // check each channel separately
-    for (size_t i = 0; i < channels; ++i) {
-        double passbandEnergy = signalEnergy(out, out + passbandFrame * channels, channels);
-        double stopbandEnergy = signalEnergy(out + stopbandFrame * channels,
-                out + outputFrames * channels, channels);
-        double dbAtten = -10. * log10(stopbandEnergy / passbandEnergy);
-        ASSERT_GT(dbAtten, 60.);
-
-#if 0
-        // internal verification
-        printf("if:%d  of:%d  pbf:%d  sbf:%d  sbe: %f  pbe: %f  db: %.2f\n",
-                provider.getNumFrames(), outputFrames,
-                passbandFrame, stopbandFrame, stopbandEnergy, passbandEnergy, dbAtten);
-        for (size_t i = 0; i < 10; ++i) {
-            std::cout << out[i+passbandFrame*channels] << std::endl;
-        }
-        for (size_t i = 0; i < 10; ++i) {
-            std::cout << out[i+stopbandFrame*channels] << std::endl;
-        }
-#endif
-    }
-
-    free(reference);
-    delete resampler;
-}
-
-/* Buffer increment test
- *
- * We compare a reference output, where we consume and process the entire
- * buffer at a time, and a test output, where we provide small chunks of input
- * data and process small chunks of output (which may not be equivalent in size).
- *
- * Two subtests - fixed phase (3:2 down) and interpolated phase (147:320 up)
- */
-TEST(audioflinger_resampler, bufferincrement_fixedphase) {
-    // all of these work
-    static const enum android::AudioResampler::src_quality kQualityArray[] = {
-            android::AudioResampler::LOW_QUALITY,
-            android::AudioResampler::MED_QUALITY,
-            android::AudioResampler::HIGH_QUALITY,
-            android::AudioResampler::VERY_HIGH_QUALITY,
-            android::AudioResampler::DYN_LOW_QUALITY,
-            android::AudioResampler::DYN_MED_QUALITY,
-            android::AudioResampler::DYN_HIGH_QUALITY,
-    };
-
-    for (size_t i = 0; i < ARRAY_SIZE(kQualityArray); ++i) {
-        testBufferIncrement(2, false, 48000, 32000, kQualityArray[i]);
-    }
-}
-
-TEST(audioflinger_resampler, bufferincrement_interpolatedphase) {
-    // all of these work except low quality
-    static const enum android::AudioResampler::src_quality kQualityArray[] = {
-//           android::AudioResampler::LOW_QUALITY,
-            android::AudioResampler::MED_QUALITY,
-            android::AudioResampler::HIGH_QUALITY,
-            android::AudioResampler::VERY_HIGH_QUALITY,
-            android::AudioResampler::DYN_LOW_QUALITY,
-            android::AudioResampler::DYN_MED_QUALITY,
-            android::AudioResampler::DYN_HIGH_QUALITY,
-    };
-
-    for (size_t i = 0; i < ARRAY_SIZE(kQualityArray); ++i) {
-        testBufferIncrement(2, false, 22050, 48000, kQualityArray[i]);
-    }
-}
-
-TEST(audioflinger_resampler, bufferincrement_fixedphase_multi) {
-    // only dynamic quality
-    static const enum android::AudioResampler::src_quality kQualityArray[] = {
-            android::AudioResampler::DYN_LOW_QUALITY,
-            android::AudioResampler::DYN_MED_QUALITY,
-            android::AudioResampler::DYN_HIGH_QUALITY,
-    };
-
-    for (size_t i = 0; i < ARRAY_SIZE(kQualityArray); ++i) {
-        testBufferIncrement(4, false, 48000, 32000, kQualityArray[i]);
-    }
-}
-
-TEST(audioflinger_resampler, bufferincrement_interpolatedphase_multi_float) {
-    // only dynamic quality
-    static const enum android::AudioResampler::src_quality kQualityArray[] = {
-            android::AudioResampler::DYN_LOW_QUALITY,
-            android::AudioResampler::DYN_MED_QUALITY,
-            android::AudioResampler::DYN_HIGH_QUALITY,
-    };
-
-    for (size_t i = 0; i < ARRAY_SIZE(kQualityArray); ++i) {
-        testBufferIncrement(8, true, 22050, 48000, kQualityArray[i]);
-    }
-}
-
-/* Simple aliasing test
- *
- * This checks stopband response of the chirp signal to make sure frequencies
- * are properly suppressed.  It uses downsampling because the stopband can be
- * clearly isolated by input frequencies exceeding the output sample rate (nyquist).
- */
-TEST(audioflinger_resampler, stopbandresponse_integer) {
-    // not all of these may work (old resamplers fail on downsampling)
-    static const enum android::AudioResampler::src_quality kQualityArray[] = {
-            //android::AudioResampler::LOW_QUALITY,
-            //android::AudioResampler::MED_QUALITY,
-            //android::AudioResampler::HIGH_QUALITY,
-            //android::AudioResampler::VERY_HIGH_QUALITY,
-            android::AudioResampler::DYN_LOW_QUALITY,
-            android::AudioResampler::DYN_MED_QUALITY,
-            android::AudioResampler::DYN_HIGH_QUALITY,
-    };
-
-    // in this test we assume a maximum transition band between 12kHz and 20kHz.
-    // there must be at least 60dB relative attenuation between stopband and passband.
-    for (size_t i = 0; i < ARRAY_SIZE(kQualityArray); ++i) {
-        testStopbandDownconversion<int16_t, int32_t>(
-                2, 48000, 32000, 12000, 20000, kQualityArray[i]);
-    }
-
-    // in this test we assume a maximum transition band between 7kHz and 15kHz.
-    // there must be at least 60dB relative attenuation between stopband and passband.
-    // (the weird ratio triggers interpolative resampling)
-    for (size_t i = 0; i < ARRAY_SIZE(kQualityArray); ++i) {
-        testStopbandDownconversion<int16_t, int32_t>(
-                2, 48000, 22101, 7000, 15000, kQualityArray[i]);
-    }
-}
-
-TEST(audioflinger_resampler, stopbandresponse_integer_multichannel) {
-    // not all of these may work (old resamplers fail on downsampling)
-    static const enum android::AudioResampler::src_quality kQualityArray[] = {
-            //android::AudioResampler::LOW_QUALITY,
-            //android::AudioResampler::MED_QUALITY,
-            //android::AudioResampler::HIGH_QUALITY,
-            //android::AudioResampler::VERY_HIGH_QUALITY,
-            android::AudioResampler::DYN_LOW_QUALITY,
-            android::AudioResampler::DYN_MED_QUALITY,
-            android::AudioResampler::DYN_HIGH_QUALITY,
-    };
-
-    // in this test we assume a maximum transition band between 12kHz and 20kHz.
-    // there must be at least 60dB relative attenuation between stopband and passband.
-    for (size_t i = 0; i < ARRAY_SIZE(kQualityArray); ++i) {
-        testStopbandDownconversion<int16_t, int32_t>(
-                8, 48000, 32000, 12000, 20000, kQualityArray[i]);
-    }
-
-    // in this test we assume a maximum transition band between 7kHz and 15kHz.
-    // there must be at least 60dB relative attenuation between stopband and passband.
-    // (the weird ratio triggers interpolative resampling)
-    for (size_t i = 0; i < ARRAY_SIZE(kQualityArray); ++i) {
-        testStopbandDownconversion<int16_t, int32_t>(
-                8, 48000, 22101, 7000, 15000, kQualityArray[i]);
-    }
-}
-
-TEST(audioflinger_resampler, stopbandresponse_float) {
-    // not all of these may work (old resamplers fail on downsampling)
-    static const enum android::AudioResampler::src_quality kQualityArray[] = {
-            //android::AudioResampler::LOW_QUALITY,
-            //android::AudioResampler::MED_QUALITY,
-            //android::AudioResampler::HIGH_QUALITY,
-            //android::AudioResampler::VERY_HIGH_QUALITY,
-            android::AudioResampler::DYN_LOW_QUALITY,
-            android::AudioResampler::DYN_MED_QUALITY,
-            android::AudioResampler::DYN_HIGH_QUALITY,
-    };
-
-    // in this test we assume a maximum transition band between 12kHz and 20kHz.
-    // there must be at least 60dB relative attenuation between stopband and passband.
-    for (size_t i = 0; i < ARRAY_SIZE(kQualityArray); ++i) {
-        testStopbandDownconversion<float, float>(
-                2, 48000, 32000, 12000, 20000, kQualityArray[i]);
-    }
-
-    // in this test we assume a maximum transition band between 7kHz and 15kHz.
-    // there must be at least 60dB relative attenuation between stopband and passband.
-    // (the weird ratio triggers interpolative resampling)
-    for (size_t i = 0; i < ARRAY_SIZE(kQualityArray); ++i) {
-        testStopbandDownconversion<float, float>(
-                2, 48000, 22101, 7000, 15000, kQualityArray[i]);
-    }
-}
-
-TEST(audioflinger_resampler, stopbandresponse_float_multichannel) {
-    // not all of these may work (old resamplers fail on downsampling)
-    static const enum android::AudioResampler::src_quality kQualityArray[] = {
-            //android::AudioResampler::LOW_QUALITY,
-            //android::AudioResampler::MED_QUALITY,
-            //android::AudioResampler::HIGH_QUALITY,
-            //android::AudioResampler::VERY_HIGH_QUALITY,
-            android::AudioResampler::DYN_LOW_QUALITY,
-            android::AudioResampler::DYN_MED_QUALITY,
-            android::AudioResampler::DYN_HIGH_QUALITY,
-    };
-
-    // in this test we assume a maximum transition band between 12kHz and 20kHz.
-    // there must be at least 60dB relative attenuation between stopband and passband.
-    for (size_t i = 0; i < ARRAY_SIZE(kQualityArray); ++i) {
-        testStopbandDownconversion<float, float>(
-                8, 48000, 32000, 12000, 20000, kQualityArray[i]);
-    }
-
-    // in this test we assume a maximum transition band between 7kHz and 15kHz.
-    // there must be at least 60dB relative attenuation between stopband and passband.
-    // (the weird ratio triggers interpolative resampling)
-    for (size_t i = 0; i < ARRAY_SIZE(kQualityArray); ++i) {
-        testStopbandDownconversion<float, float>(
-                8, 48000, 22101, 7000, 15000, kQualityArray[i]);
-    }
-}
-
diff --git a/services/audioflinger/tests/run_all_unit_tests.sh b/services/audioflinger/tests/run_all_unit_tests.sh
deleted file mode 100755
index 113f39e..0000000
--- a/services/audioflinger/tests/run_all_unit_tests.sh
+++ /dev/null
@@ -1,12 +0,0 @@
-#!/bin/bash
-
-if [ -z "$ANDROID_BUILD_TOP" ]; then
-    echo "Android build environment not set"
-    exit -1
-fi
-
-echo "waiting for device"
-adb root && adb wait-for-device remount
-
-#adb shell /system/bin/resampler_tests
-adb shell /data/nativetest/resampler_tests/resampler_tests
diff --git a/services/audioflinger/tests/test-mixer.cpp b/services/audioflinger/tests/test-mixer.cpp
deleted file mode 100644
index 65e22da..0000000
--- a/services/audioflinger/tests/test-mixer.cpp
+++ /dev/null
@@ -1,328 +0,0 @@
-/*
- * Copyright (C) 2014 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <stdio.h>
-#include <inttypes.h>
-#include <math.h>
-#include <vector>
-#include <audio_utils/primitives.h>
-#include <audio_utils/sndfile.h>
-#include <media/AudioBufferProvider.h>
-#include "AudioMixer.h"
-#include "test_utils.h"
-
-/* Testing is typically through creation of an output WAV file from several
- * source inputs, to be later analyzed by an audio program such as Audacity.
- *
- * Sine or chirp functions are typically more useful as input to the mixer
- * as they show up as straight lines on a spectrogram if successfully mixed.
- *
- * A sample shell script is provided: mixer_to_wave_tests.sh
- */
-
-using namespace android;
-
-static void usage(const char* name) {
-    fprintf(stderr, "Usage: %s [-f] [-m] [-c channels]"
-                    " [-s sample-rate] [-o <output-file>] [-a <aux-buffer-file>] [-P csv]"
-                    " (<input-file> | <command>)+\n", name);
-    fprintf(stderr, "    -f    enable floating point input track by default\n");
-    fprintf(stderr, "    -m    enable floating point mixer output\n");
-    fprintf(stderr, "    -c    number of mixer output channels\n");
-    fprintf(stderr, "    -s    mixer sample-rate\n");
-    fprintf(stderr, "    -o    <output-file> WAV file, pcm16 (or float if -m specified)\n");
-    fprintf(stderr, "    -a    <aux-buffer-file>\n");
-    fprintf(stderr, "    -P    # frames provided per call to resample() in CSV format\n");
-    fprintf(stderr, "    <input-file> is a WAV file\n");
-    fprintf(stderr, "    <command> can be 'sine:[(i|f),]<channels>,<frequency>,<samplerate>'\n");
-    fprintf(stderr, "                     'chirp:[(i|f),]<channels>,<samplerate>'\n");
-}
-
-static int writeFile(const char *filename, const void *buffer,
-        uint32_t sampleRate, uint32_t channels, size_t frames, bool isBufferFloat) {
-    if (filename == NULL) {
-        return 0; // ok to pass in NULL filename
-    }
-    // write output to file.
-    SF_INFO info;
-    info.frames = 0;
-    info.samplerate = sampleRate;
-    info.channels = channels;
-    info.format = SF_FORMAT_WAV | (isBufferFloat ? SF_FORMAT_FLOAT : SF_FORMAT_PCM_16);
-    printf("saving file:%s  channels:%u  samplerate:%u  frames:%zu\n",
-            filename, info.channels, info.samplerate, frames);
-    SNDFILE *sf = sf_open(filename, SFM_WRITE, &info);
-    if (sf == NULL) {
-        perror(filename);
-        return EXIT_FAILURE;
-    }
-    if (isBufferFloat) {
-        (void) sf_writef_float(sf, (float*)buffer, frames);
-    } else {
-        (void) sf_writef_short(sf, (short*)buffer, frames);
-    }
-    sf_close(sf);
-    return EXIT_SUCCESS;
-}
-
-const char *parseFormat(const char *s, bool *useFloat) {
-    if (!strncmp(s, "f,", 2)) {
-        *useFloat = true;
-        return s + 2;
-    }
-    if (!strncmp(s, "i,", 2)) {
-        *useFloat = false;
-        return s + 2;
-    }
-    return s;
-}
-
-int main(int argc, char* argv[]) {
-    const char* const progname = argv[0];
-    bool useInputFloat = false;
-    bool useMixerFloat = false;
-    bool useRamp = true;
-    uint32_t outputSampleRate = 48000;
-    uint32_t outputChannels = 2; // stereo for now
-    std::vector<int> Pvalues;
-    const char* outputFilename = NULL;
-    const char* auxFilename = NULL;
-    std::vector<int32_t> names;
-    std::vector<SignalProvider> providers;
-    std::vector<audio_format_t> formats;
-
-    for (int ch; (ch = getopt(argc, argv, "fmc:s:o:a:P:")) != -1;) {
-        switch (ch) {
-        case 'f':
-            useInputFloat = true;
-            break;
-        case 'm':
-            useMixerFloat = true;
-            break;
-        case 'c':
-            outputChannels = atoi(optarg);
-            break;
-        case 's':
-            outputSampleRate = atoi(optarg);
-            break;
-        case 'o':
-            outputFilename = optarg;
-            break;
-        case 'a':
-            auxFilename = optarg;
-            break;
-        case 'P':
-            if (parseCSV(optarg, Pvalues) < 0) {
-                fprintf(stderr, "incorrect syntax for -P option\n");
-                return EXIT_FAILURE;
-            }
-            break;
-        case '?':
-        default:
-            usage(progname);
-            return EXIT_FAILURE;
-        }
-    }
-    argc -= optind;
-    argv += optind;
-
-    if (argc == 0) {
-        usage(progname);
-        return EXIT_FAILURE;
-    }
-    if ((unsigned)argc > AudioMixer::MAX_NUM_TRACKS) {
-        fprintf(stderr, "too many tracks: %d > %u", argc, AudioMixer::MAX_NUM_TRACKS);
-        return EXIT_FAILURE;
-    }
-
-    size_t outputFrames = 0;
-
-    // create providers for each track
-    names.resize(argc);
-    providers.resize(argc);
-    formats.resize(argc);
-    for (int i = 0; i < argc; ++i) {
-        static const char chirp[] = "chirp:";
-        static const char sine[] = "sine:";
-        static const double kSeconds = 1;
-        bool useFloat = useInputFloat;
-
-        if (!strncmp(argv[i], chirp, strlen(chirp))) {
-            std::vector<int> v;
-            const char *s = parseFormat(argv[i] + strlen(chirp), &useFloat);
-
-            parseCSV(s, v);
-            if (v.size() == 2) {
-                printf("creating chirp(%d %d)\n", v[0], v[1]);
-                if (useFloat) {
-                    providers[i].setChirp<float>(v[0], 0, v[1]/2, v[1], kSeconds);
-                    formats[i] = AUDIO_FORMAT_PCM_FLOAT;
-                } else {
-                    providers[i].setChirp<int16_t>(v[0], 0, v[1]/2, v[1], kSeconds);
-                    formats[i] = AUDIO_FORMAT_PCM_16_BIT;
-                }
-                providers[i].setIncr(Pvalues);
-            } else {
-                fprintf(stderr, "malformed input '%s'\n", argv[i]);
-            }
-        } else if (!strncmp(argv[i], sine, strlen(sine))) {
-            std::vector<int> v;
-            const char *s = parseFormat(argv[i] + strlen(sine), &useFloat);
-
-            parseCSV(s, v);
-            if (v.size() == 3) {
-                printf("creating sine(%d %d %d)\n", v[0], v[1], v[2]);
-                if (useFloat) {
-                    providers[i].setSine<float>(v[0], v[1], v[2], kSeconds);
-                    formats[i] = AUDIO_FORMAT_PCM_FLOAT;
-                } else {
-                    providers[i].setSine<int16_t>(v[0], v[1], v[2], kSeconds);
-                    formats[i] = AUDIO_FORMAT_PCM_16_BIT;
-                }
-                providers[i].setIncr(Pvalues);
-            } else {
-                fprintf(stderr, "malformed input '%s'\n", argv[i]);
-            }
-        } else {
-            printf("creating filename(%s)\n", argv[i]);
-            if (useInputFloat) {
-                providers[i].setFile<float>(argv[i]);
-                formats[i] = AUDIO_FORMAT_PCM_FLOAT;
-            } else {
-                providers[i].setFile<short>(argv[i]);
-                formats[i] = AUDIO_FORMAT_PCM_16_BIT;
-            }
-            providers[i].setIncr(Pvalues);
-        }
-        // calculate the number of output frames
-        size_t nframes = (int64_t) providers[i].getNumFrames() * outputSampleRate
-                / providers[i].getSampleRate();
-        if (i == 0 || outputFrames > nframes) { // choose minimum for outputFrames
-            outputFrames = nframes;
-        }
-    }
-
-    // create the output buffer.
-    const size_t outputFrameSize = outputChannels
-            * (useMixerFloat ? sizeof(float) : sizeof(int16_t));
-    const size_t outputSize = outputFrames * outputFrameSize;
-    const audio_channel_mask_t outputChannelMask =
-            audio_channel_out_mask_from_count(outputChannels);
-    void *outputAddr = NULL;
-    (void) posix_memalign(&outputAddr, 32, outputSize);
-    memset(outputAddr, 0, outputSize);
-
-    // create the aux buffer, if needed.
-    const size_t auxFrameSize = sizeof(int32_t); // Q4.27 always
-    const size_t auxSize = outputFrames * auxFrameSize;
-    void *auxAddr = NULL;
-    if (auxFilename) {
-        (void) posix_memalign(&auxAddr, 32, auxSize);
-        memset(auxAddr, 0, auxSize);
-    }
-
-    // create the mixer.
-    const size_t mixerFrameCount = 320; // typical numbers may range from 240 or 960
-    AudioMixer *mixer = new AudioMixer(mixerFrameCount, outputSampleRate);
-    audio_format_t mixerFormat = useMixerFloat
-            ? AUDIO_FORMAT_PCM_FLOAT : AUDIO_FORMAT_PCM_16_BIT;
-    float f = AudioMixer::UNITY_GAIN_FLOAT / providers.size(); // normalize volume by # tracks
-    static float f0; // zero
-
-    // set up the tracks.
-    for (size_t i = 0; i < providers.size(); ++i) {
-        //printf("track %d out of %d\n", i, providers.size());
-        uint32_t channelMask = audio_channel_out_mask_from_count(providers[i].getNumChannels());
-        int32_t name = mixer->getTrackName(channelMask,
-                formats[i], AUDIO_SESSION_OUTPUT_MIX);
-        ALOG_ASSERT(name >= 0);
-        names[i] = name;
-        mixer->setBufferProvider(name, &providers[i]);
-        mixer->setParameter(name, AudioMixer::TRACK, AudioMixer::MAIN_BUFFER,
-                (void *)outputAddr);
-        mixer->setParameter(
-                name,
-                AudioMixer::TRACK,
-                AudioMixer::MIXER_FORMAT,
-                (void *)(uintptr_t)mixerFormat);
-        mixer->setParameter(
-                name,
-                AudioMixer::TRACK,
-                AudioMixer::FORMAT,
-                (void *)(uintptr_t)formats[i]);
-        mixer->setParameter(
-                name,
-                AudioMixer::TRACK,
-                AudioMixer::MIXER_CHANNEL_MASK,
-                (void *)(uintptr_t)outputChannelMask);
-        mixer->setParameter(
-                name,
-                AudioMixer::TRACK,
-                AudioMixer::CHANNEL_MASK,
-                (void *)(uintptr_t)channelMask);
-        mixer->setParameter(
-                name,
-                AudioMixer::RESAMPLE,
-                AudioMixer::SAMPLE_RATE,
-                (void *)(uintptr_t)providers[i].getSampleRate());
-        if (useRamp) {
-            mixer->setParameter(name, AudioMixer::VOLUME, AudioMixer::VOLUME0, &f0);
-            mixer->setParameter(name, AudioMixer::VOLUME, AudioMixer::VOLUME1, &f0);
-            mixer->setParameter(name, AudioMixer::RAMP_VOLUME, AudioMixer::VOLUME0, &f);
-            mixer->setParameter(name, AudioMixer::RAMP_VOLUME, AudioMixer::VOLUME1, &f);
-        } else {
-            mixer->setParameter(name, AudioMixer::VOLUME, AudioMixer::VOLUME0, &f);
-            mixer->setParameter(name, AudioMixer::VOLUME, AudioMixer::VOLUME1, &f);
-        }
-        if (auxFilename) {
-            mixer->setParameter(name, AudioMixer::TRACK, AudioMixer::AUX_BUFFER,
-                    (void *) auxAddr);
-            mixer->setParameter(name, AudioMixer::VOLUME, AudioMixer::AUXLEVEL, &f0);
-            mixer->setParameter(name, AudioMixer::RAMP_VOLUME, AudioMixer::AUXLEVEL, &f);
-        }
-        mixer->enable(name);
-    }
-
-    // pump the mixer to process data.
-    size_t i;
-    for (i = 0; i < outputFrames - mixerFrameCount; i += mixerFrameCount) {
-        for (size_t j = 0; j < names.size(); ++j) {
-            mixer->setParameter(names[j], AudioMixer::TRACK, AudioMixer::MAIN_BUFFER,
-                    (char *) outputAddr + i * outputFrameSize);
-            if (auxFilename) {
-                mixer->setParameter(names[j], AudioMixer::TRACK, AudioMixer::AUX_BUFFER,
-                        (char *) auxAddr + i * auxFrameSize);
-            }
-        }
-        mixer->process();
-    }
-    outputFrames = i; // reset output frames to the data actually produced.
-
-    // write to files
-    writeFile(outputFilename, outputAddr,
-            outputSampleRate, outputChannels, outputFrames, useMixerFloat);
-    if (auxFilename) {
-        // Aux buffer is always in q4_27 format for now.
-        // memcpy_to_i16_from_q4_27(), but with stereo frame count (not sample count)
-        ditherAndClamp((int32_t*)auxAddr, (int32_t*)auxAddr, outputFrames >> 1);
-        writeFile(auxFilename, auxAddr, outputSampleRate, 1, outputFrames, false);
-    }
-
-    delete mixer;
-    free(outputAddr);
-    free(auxAddr);
-    return EXIT_SUCCESS;
-}
diff --git a/services/audiopolicy/Android.mk b/services/audiopolicy/Android.mk
index 69d22c0..7cd2b81 100644
--- a/services/audiopolicy/Android.mk
+++ b/services/audiopolicy/Android.mk
@@ -4,23 +4,12 @@
 
 LOCAL_SRC_FILES:= \
     service/AudioPolicyService.cpp \
-    service/AudioPolicyEffects.cpp
-
-ifeq ($(USE_LEGACY_AUDIO_POLICY), 1)
-LOCAL_SRC_FILES += \
-    service/AudioPolicyInterfaceImplLegacy.cpp \
-    service/AudioPolicyClientImplLegacy.cpp
-
-    LOCAL_CFLAGS += -DUSE_LEGACY_AUDIO_POLICY
-else
-LOCAL_SRC_FILES += \
+    service/AudioPolicyEffects.cpp \
     service/AudioPolicyInterfaceImpl.cpp \
     service/AudioPolicyClientImpl.cpp
-endif
 
 LOCAL_C_INCLUDES := \
     $(TOPDIR)frameworks/av/services/audioflinger \
-    $(call include-path-for, audio-effects) \
     $(call include-path-for, audio-utils) \
     $(TOPDIR)frameworks/av/services/audiopolicy/common/include \
     $(TOPDIR)frameworks/av/services/audiopolicy/engine/interface \
@@ -33,15 +22,11 @@
     libbinder \
     libaudioclient \
     libhardware_legacy \
-    libserviceutility
-
-ifneq ($(USE_LEGACY_AUDIO_POLICY), 1)
-LOCAL_SHARED_LIBRARIES += \
-    libaudiopolicymanager
-endif
+    libserviceutility \
+    libaudiopolicymanager \
+    libmedia_helper
 
 LOCAL_STATIC_LIBRARIES := \
-    libmedia_helper \
     libaudiopolicycomponents
 
 LOCAL_MULTILIB := $(AUDIOSERVER_MULTILIB)
@@ -53,8 +38,6 @@
 
 include $(BUILD_SHARED_LIBRARY)
 
-ifneq ($(USE_LEGACY_AUDIO_POLICY), 1)
-
 include $(CLEAR_VARS)
 
 LOCAL_SRC_FILES:= managerdefault/AudioPolicyManager.cpp
@@ -91,13 +74,12 @@
     $(TOPDIR)frameworks/av/services/audiopolicy/utilities
 
 LOCAL_STATIC_LIBRARIES := \
-    libmedia_helper \
     libaudiopolicycomponents
 
-ifeq ($(USE_XML_AUDIO_POLICY_CONF), 1)
-LOCAL_STATIC_LIBRARIES += libxml2
+LOCAL_SHARED_LIBRARIES += libmedia_helper
 
-LOCAL_SHARED_LIBRARIES += libicuuc
+ifeq ($(USE_XML_AUDIO_POLICY_CONF), 1)
+LOCAL_SHARED_LIBRARIES += libicuuc libxml2
 
 LOCAL_CFLAGS += -DUSE_XML_AUDIO_POLICY_CONF
 endif #ifeq ($(USE_XML_AUDIO_POLICY_CONF), 1)
@@ -136,7 +118,6 @@
 include $(BUILD_SHARED_LIBRARY)
 
 endif
-endif
 
 #######################################################################
 # Recursive call sub-folder Android.mk
diff --git a/services/audiopolicy/AudioPolicyInterface.h b/services/audiopolicy/AudioPolicyInterface.h
index d1b86da..60ed1d6 100644
--- a/services/audiopolicy/AudioPolicyInterface.h
+++ b/services/audiopolicy/AudioPolicyInterface.h
@@ -21,8 +21,6 @@
 #include <media/AudioPolicy.h>
 #include <utils/String8.h>
 
-#include <hardware/audio_policy.h>
-
 namespace android {
 
 // ----------------------------------------------------------------------------
@@ -67,6 +65,16 @@
         API_INPUT_TELEPHONY_RX, // used for capture from telephony RX path
     } input_type_t;
 
+   enum {
+        API_INPUT_CONCURRENCY_NONE = 0,
+        API_INPUT_CONCURRENCY_CALL = (1 << 0),      // Concurrency with a call
+        API_INPUT_CONCURRENCY_CAPTURE = (1 << 1),   // Concurrency with another capture
+
+        API_INPUT_CONCURRENCY_ALL = (API_INPUT_CONCURRENCY_CALL | API_INPUT_CONCURRENCY_CAPTURE),
+   };
+
+   typedef uint32_t concurrency_type__mask_t;
+
 public:
     virtual ~AudioPolicyInterface() {}
     //
@@ -112,12 +120,10 @@
                                         audio_session_t session,
                                         audio_stream_type_t *stream,
                                         uid_t uid,
-                                        uint32_t samplingRate,
-                                        audio_format_t format,
-                                        audio_channel_mask_t channelMask,
+                                        const audio_config_t *config,
                                         audio_output_flags_t flags,
                                         int selectedDeviceId,
-                                        const audio_offload_info_t *offloadInfo) = 0;
+                                        audio_port_handle_t *portId) = 0;
     // indicates to the audio policy manager that the output starts being used by corresponding stream.
     virtual status_t startOutput(audio_io_handle_t output,
                                  audio_stream_type_t stream,
@@ -136,15 +142,15 @@
                                      audio_io_handle_t *input,
                                      audio_session_t session,
                                      uid_t uid,
-                                     uint32_t samplingRate,
-                                     audio_format_t format,
-                                     audio_channel_mask_t channelMask,
+                                     const audio_config_base_t *config,
                                      audio_input_flags_t flags,
                                      audio_port_handle_t selectedDeviceId,
-                                     input_type_t *inputType) = 0;
+                                     input_type_t *inputType,
+                                     audio_port_handle_t *portId) = 0;
     // indicates to the audio policy manager that the input starts being used.
     virtual status_t startInput(audio_io_handle_t input,
-                                audio_session_t session) = 0;
+                                audio_session_t session,
+                                concurrency_type__mask_t *concurrency) = 0;
     // indicates to the audio policy manager that the input stops being used.
     virtual status_t stopInput(audio_io_handle_t input,
                                audio_session_t session) = 0;
@@ -229,9 +235,9 @@
 
     virtual status_t startAudioSource(const struct audio_port_config *source,
                                       const audio_attributes_t *attributes,
-                                      audio_io_handle_t *handle,
+                                      audio_patch_handle_t *handle,
                                       uid_t uid) = 0;
-    virtual status_t stopAudioSource(audio_io_handle_t handle) = 0;
+    virtual status_t stopAudioSource(audio_patch_handle_t handle) = 0;
 
     virtual status_t setMasterMono(bool mono) = 0;
     virtual status_t getMasterMono(bool *mono) = 0;
diff --git a/services/audiopolicy/common/include/Volume.h b/services/audiopolicy/common/include/Volume.h
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/common/include/policy.h b/services/audiopolicy/common/include/policy.h
old mode 100755
new mode 100644
index 55ee91f..31f0550
--- a/services/audiopolicy/common/include/policy.h
+++ b/services/audiopolicy/common/include/policy.h
@@ -33,9 +33,9 @@
 
 /**
  * A device mask for all audio input devices that are considered "virtual" when evaluating
- * active inputs in getActiveInput()
+ * active inputs in getActiveInputs()
  */
-#define APM_AUDIO_IN_DEVICE_VIRTUAL_ALL  (AUDIO_DEVICE_IN_REMOTE_SUBMIX|AUDIO_DEVICE_IN_FM_TUNER)
+#define APM_AUDIO_IN_DEVICE_VIRTUAL_ALL  (AUDIO_DEVICE_IN_REMOTE_SUBMIX)
 
 
 /**
@@ -47,16 +47,6 @@
 #define APM_AUDIO_DEVICE_IN_MATCH_ADDRESS_ALL (AUDIO_DEVICE_IN_REMOTE_SUBMIX|AUDIO_DEVICE_IN_BUS)
 
 /**
- * Stub audio output device. Used in policy configuration file on platforms without audio outputs.
- * This alias value to AUDIO_DEVICE_OUT_DEFAULT is only used in the audio policy context.
- */
-#define AUDIO_DEVICE_OUT_STUB AUDIO_DEVICE_OUT_DEFAULT
-/**
- * Stub audio input device. Used in policy configuration file on platforms without audio inputs.
- * This alias value to AUDIO_DEVICE_IN_DEFAULT is only used in the audio policy context.
- */
-#define AUDIO_DEVICE_IN_STUB AUDIO_DEVICE_IN_DEFAULT
-/**
  * Alias to AUDIO_DEVICE_OUT_DEFAULT defined for clarification when this value is used by volume
  * control APIs (e.g setStreamVolumeIndex().
  */
@@ -109,6 +99,44 @@
             ((device & APM_AUDIO_DEVICE_OUT_MATCH_ADDRESS_ALL) != 0));
 }
 
+/**
+ * Returns the priority of a given audio source for capture. The priority is used when more than one
+ * capture session is active on a given input stream to determine which session drives routing and
+ * effect configuration.
+ *
+ * @param[in] inputSource to consider. Valid sources are:
+ * - AUDIO_SOURCE_VOICE_COMMUNICATION
+ * - AUDIO_SOURCE_CAMCORDER
+ * - AUDIO_SOURCE_MIC
+ * - AUDIO_SOURCE_FM_TUNER
+ * - AUDIO_SOURCE_VOICE_RECOGNITION
+ * - AUDIO_SOURCE_HOTWORD
+ *
+ * @return the corresponding input source priority or 0 if priority is irrelevant for this source.
+ *      This happens when the specified source cannot share a given input stream (e.g remote submix)
+ *      The higher the value, the higher the priority.
+ */
+static inline int32_t source_priority(audio_source_t inputSource)
+{
+    switch (inputSource) {
+    case AUDIO_SOURCE_VOICE_COMMUNICATION:
+        return 6;
+    case AUDIO_SOURCE_CAMCORDER:
+        return 5;
+    case AUDIO_SOURCE_MIC:
+        return 4;
+    case AUDIO_SOURCE_FM_TUNER:
+        return 3;
+    case AUDIO_SOURCE_VOICE_RECOGNITION:
+        return 2;
+    case AUDIO_SOURCE_HOTWORD:
+        return 1;
+    default:
+        break;
+    }
+    return 0;
+}
+
 /* Indicates if audio formats are equivalent when considering a match between
  * audio HAL supported formats and client requested formats
  */
diff --git a/services/audiopolicy/common/managerdefinitions/Android.mk b/services/audiopolicy/common/managerdefinitions/Android.mk
index 02118c4..7968103 100644
--- a/services/audiopolicy/common/managerdefinitions/Android.mk
+++ b/services/audiopolicy/common/managerdefinitions/Android.mk
@@ -41,9 +41,7 @@
 
 LOCAL_SRC_FILES += src/Serializer.cpp
 
-LOCAL_STATIC_LIBRARIES += libxml2
-
-LOCAL_SHARED_LIBRARIES += libicuuc
+LOCAL_SHARED_LIBRARIES += libicuuc libxml2
 
 LOCAL_C_INCLUDES += \
     $(TOPDIR)external/libxml2/include \
diff --git a/services/audiopolicy/common/managerdefinitions/include/AudioInputDescriptor.h b/services/audiopolicy/common/managerdefinitions/include/AudioInputDescriptor.h
index e689320..b169bac 100644
--- a/services/audiopolicy/common/managerdefinitions/include/AudioInputDescriptor.h
+++ b/services/audiopolicy/common/managerdefinitions/include/AudioInputDescriptor.h
@@ -57,13 +57,15 @@
     void clearPreemptedSessions();
     bool isActive() const;
     bool isSourceActive(audio_source_t source) const;
-    audio_source_t inputSource() const;
+    audio_source_t inputSource(bool activeOnly = false) const;
     bool isSoundTrigger() const;
     status_t addAudioSession(audio_session_t session,
                              const sp<AudioSession>& audioSession);
     status_t removeAudioSession(audio_session_t session);
     sp<AudioSession> getAudioSession(audio_session_t session) const;
-    AudioSessionCollection getActiveAudioSessions() const;
+    AudioSessionCollection getAudioSessions(bool activeOnly) const;
+    size_t getAudioSessionCount(bool activeOnly) const;
+    audio_source_t getHighestPrioritySource(bool activeOnly) const;
 
     // implementation of AudioSessionInfoProvider
     virtual audio_config_base_t getConfig() const;
@@ -102,7 +104,7 @@
      * Only considers inputs from physical devices (e.g. main mic, headset mic) when
      * ignoreVirtualInputs is true.
      */
-    audio_io_handle_t getActiveInput(bool ignoreVirtualInputs = true);
+    Vector<sp <AudioInputDescriptor> > getActiveInputs(bool ignoreVirtualInputs = true);
 
     audio_devices_t getSupportedDevices(audio_io_handle_t handle) const;
 
diff --git a/services/audiopolicy/common/managerdefinitions/include/AudioOutputDescriptor.h b/services/audiopolicy/common/managerdefinitions/include/AudioOutputDescriptor.h
index 35bb021..16fed70 100644
--- a/services/audiopolicy/common/managerdefinitions/include/AudioOutputDescriptor.h
+++ b/services/audiopolicy/common/managerdefinitions/include/AudioOutputDescriptor.h
@@ -16,6 +16,8 @@
 
 #pragma once
 
+#include <sys/types.h>
+
 #include "AudioPort.h"
 #include <RoutingStrategy.h>
 #include <utils/Errors.h>
@@ -128,6 +130,7 @@
     sp<SwAudioOutputDescriptor> mOutput1;    // used by duplicated outputs: first output
     sp<SwAudioOutputDescriptor> mOutput2;    // used by duplicated outputs: second output
     uint32_t mDirectOpenCount; // number of clients using this output (direct outputs only)
+    uid_t mDirectClientUid; // uid of the direct output client
     uint32_t mGlobalRefCount;  // non-stream-specific ref count
 };
 
diff --git a/services/audiopolicy/common/managerdefinitions/include/AudioPolicyMix.h b/services/audiopolicy/common/managerdefinitions/include/AudioPolicyMix.h
index c9652de..0bacef7 100644
--- a/services/audiopolicy/common/managerdefinitions/include/AudioPolicyMix.h
+++ b/services/audiopolicy/common/managerdefinitions/include/AudioPolicyMix.h
@@ -19,7 +19,7 @@
 #include <utils/RefBase.h>
 #include <media/AudioPolicy.h>
 #include <utils/KeyedVector.h>
-#include <hardware/audio.h>
+#include <system/audio.h>
 #include <utils/String8.h>
 
 namespace android {
@@ -43,6 +43,8 @@
 
     void setMix(AudioMix &mix);
 
+    status_t dump(int fd, int spaces, int index) const;
+
 private:
     AudioMix    mMix;                   // Audio policy mix descriptor
     sp<SwAudioOutputDescriptor> mOutput;  // Corresponding output stream
@@ -77,6 +79,8 @@
                                                   AudioMix **policyMix);
 
     status_t getInputMixForAttr(audio_attributes_t attr, AudioMix **policyMix);
+
+    status_t dump(int fd) const;
 };
 
 }; // namespace android
diff --git a/services/audiopolicy/common/managerdefinitions/include/AudioPort.h b/services/audiopolicy/common/managerdefinitions/include/AudioPort.h
index d00d49f..ded2285 100644
--- a/services/audiopolicy/common/managerdefinitions/include/AudioPort.h
+++ b/services/audiopolicy/common/managerdefinitions/include/AudioPort.h
@@ -118,7 +118,7 @@
                                         audio_format_t targetFormat);
 
     audio_module_handle_t getModuleHandle() const;
-    uint32_t getModuleVersion() const;
+    uint32_t getModuleVersionMajor() const;
     const char *getModuleName() const;
 
     bool useInputChannelMask() const
@@ -166,6 +166,10 @@
     virtual void toAudioPortConfig(struct audio_port_config *dstConfig,
                                    const struct audio_port_config *srcConfig = NULL) const = 0;
     virtual sp<AudioPort> getAudioPort() const = 0;
+    virtual bool hasSameHwModuleAs(const sp<AudioPortConfig>& other) const {
+        return (other != 0) &&
+                (other->getAudioPort()->getModuleHandle() == getAudioPort()->getModuleHandle());
+    }
     uint32_t mSamplingRate;
     audio_format_t mFormat;
     audio_channel_mask_t mChannelMask;
diff --git a/services/audiopolicy/common/managerdefinitions/include/AudioSession.h b/services/audiopolicy/common/managerdefinitions/include/AudioSession.h
index 388c25d..18fba25 100644
--- a/services/audiopolicy/common/managerdefinitions/include/AudioSession.h
+++ b/services/audiopolicy/common/managerdefinitions/include/AudioSession.h
@@ -91,8 +91,10 @@
     uint32_t getOpenCount() const;
 
     AudioSessionCollection getActiveSessions() const;
+    size_t getActiveSessionCount() const;
     bool hasActiveSession() const;
     bool isSourceActive(audio_source_t source) const;
+    audio_source_t getHighestPrioritySource(bool activeOnly) const;
 
     // implementation of AudioSessionInfoUpdateListener
     virtual void onSessionInfoUpdate() const;
diff --git a/services/audiopolicy/common/managerdefinitions/include/AudioSourceDescriptor.h b/services/audiopolicy/common/managerdefinitions/include/AudioSourceDescriptor.h
index 4ab7cf0..7e1e24d 100644
--- a/services/audiopolicy/common/managerdefinitions/include/AudioSourceDescriptor.h
+++ b/services/audiopolicy/common/managerdefinitions/include/AudioSourceDescriptor.h
@@ -50,7 +50,7 @@
 };
 
 class AudioSourceCollection :
-        public DefaultKeyedVector< audio_io_handle_t, sp<AudioSourceDescriptor> >
+        public DefaultKeyedVector< audio_patch_handle_t, sp<AudioSourceDescriptor> >
 {
 public:
     status_t dump(int fd) const;
diff --git a/services/audiopolicy/common/managerdefinitions/include/EffectDescriptor.h b/services/audiopolicy/common/managerdefinitions/include/EffectDescriptor.h
index ab650c0..9ea0aea 100644
--- a/services/audiopolicy/common/managerdefinitions/include/EffectDescriptor.h
+++ b/services/audiopolicy/common/managerdefinitions/include/EffectDescriptor.h
@@ -17,7 +17,7 @@
 #pragma once
 
 #include <RoutingStrategy.h>
-#include <hardware/audio_effect.h>
+#include <system/audio_effect.h>
 #include <utils/KeyedVector.h>
 #include <utils/RefBase.h>
 #include <utils/Errors.h>
diff --git a/services/audiopolicy/common/managerdefinitions/include/HwModule.h b/services/audiopolicy/common/managerdefinitions/include/HwModule.h
index 3a31672..29b6b9c 100644
--- a/services/audiopolicy/common/managerdefinitions/include/HwModule.h
+++ b/services/audiopolicy/common/managerdefinitions/include/HwModule.h
@@ -18,7 +18,6 @@
 
 #include "DeviceDescriptor.h"
 #include "AudioRoute.h"
-#include <hardware/audio.h>
 #include <utils/RefBase.h>
 #include <utils/String8.h>
 #include <utils/Errors.h>
@@ -40,7 +39,7 @@
 class HwModule : public RefBase
 {
 public:
-    explicit HwModule(const char *name, uint32_t halVersion = AUDIO_DEVICE_API_VERSION_MIN);
+    explicit HwModule(const char *name, uint32_t halVersionMajor = 0, uint32_t halVersionMinor = 0);
     ~HwModule();
 
     const char *getName() const { return mName.string(); }
@@ -55,8 +54,11 @@
 
     void setProfiles(const IOProfileCollection &profiles);
 
-    void setHalVersion(uint32_t halVersion) { mHalVersion = halVersion; }
-    uint32_t getHalVersion() const { return mHalVersion; }
+    void setHalVersion(uint32_t major, uint32_t minor) {
+        mHalVersion = (major << 8) | (minor & 0xff);
+    }
+    uint32_t getHalVersionMajor() const { return mHalVersion >> 8; }
+    uint32_t getHalVersionMinor() const { return mHalVersion & 0xff; }
 
     sp<DeviceDescriptor> getRouteSinkDevice(const sp<AudioRoute> &route) const;
     DeviceVector getRouteSourceDevices(const sp<AudioRoute> &route) const;
diff --git a/services/audiopolicy/common/managerdefinitions/include/StreamDescriptor.h b/services/audiopolicy/common/managerdefinitions/include/StreamDescriptor.h
index 424df84..8822927 100644
--- a/services/audiopolicy/common/managerdefinitions/include/StreamDescriptor.h
+++ b/services/audiopolicy/common/managerdefinitions/include/StreamDescriptor.h
@@ -20,7 +20,7 @@
 #include <utils/KeyedVector.h>
 #include <utils/StrongPointer.h>
 #include <utils/SortedVector.h>
-#include <hardware/audio.h>
+#include <system/audio.h>
 
 namespace android {
 
diff --git a/services/audiopolicy/common/managerdefinitions/include/TypeConverter.h b/services/audiopolicy/common/managerdefinitions/include/TypeConverter.h
index 1612714..9e705aa 100644
--- a/services/audiopolicy/common/managerdefinitions/include/TypeConverter.h
+++ b/services/audiopolicy/common/managerdefinitions/include/TypeConverter.h
@@ -16,190 +16,37 @@
 
 #pragma once
 
+#include <media/TypeConverter.h>
+
 #include "policy.h"
 #include <Volume.h>
-#include <system/audio.h>
-#include <convert/convert.h>
-#include <utils/Log.h>
-#include <string>
-#include <utils/Vector.h>
-#include <utils/SortedVector.h>
 
 namespace android {
 
-struct SampleRateTraits
-{
-    typedef uint32_t Type;
-    typedef SortedVector<Type> Collection;
-};
-struct DeviceTraits
-{
-    typedef audio_devices_t Type;
-    typedef Vector<Type> Collection;
-};
-struct OutputFlagTraits
-{
-    typedef audio_output_flags_t Type;
-    typedef Vector<Type> Collection;
-};
-struct InputFlagTraits
-{
-    typedef audio_input_flags_t Type;
-    typedef Vector<Type> Collection;
-};
-struct FormatTraits
-{
-    typedef audio_format_t Type;
-    typedef Vector<Type> Collection;
-};
-struct ChannelTraits
-{
-    typedef audio_channel_mask_t Type;
-    typedef SortedVector<Type> Collection;
-};
-struct OutputChannelTraits : public ChannelTraits {};
-struct InputChannelTraits : public ChannelTraits {};
-struct ChannelIndexTraits : public ChannelTraits {};
-struct GainModeTraits
-{
-    typedef audio_gain_mode_t Type;
-    typedef Vector<Type> Collection;
-};
-struct StreamTraits
-{
-  typedef audio_stream_type_t Type;
-  typedef Vector<Type> Collection;
-};
 struct DeviceCategoryTraits
 {
-  typedef device_category Type;
-  typedef Vector<Type> Collection;
+    typedef device_category Type;
+    typedef Vector<Type> Collection;
 };
-template <typename T>
-struct DefaultTraits
+struct MixTypeTraits
 {
-  typedef T Type;
-  typedef Vector<Type> Collection;
+    typedef int32_t Type;
+    typedef Vector<Type> Collection;
+};
+struct RouteFlagTraits
+{
+    typedef uint32_t Type;
+    typedef Vector<Type> Collection;
+};
+struct RuleTraits
+{
+    typedef uint32_t Type;
+    typedef Vector<Type> Collection;
 };
 
-template <class Traits>
-static void collectionFromString(const std::string &str, typename Traits::Collection &collection,
-                                 const char *del = "|")
-{
-    char *literal = strdup(str.c_str());
-    for (const char *cstr = strtok(literal, del); cstr != NULL; cstr = strtok(NULL, del)) {
-        typename Traits::Type value;
-        if (utilities::convertTo<std::string, typename Traits::Type >(cstr, value)) {
-            collection.add(value);
-        }
-    }
-    free(literal);
-}
-
-template <class Traits>
-class TypeConverter
-{
-public:
-    static bool toString(const typename Traits::Type &value, std::string &str);
-
-    static bool fromString(const std::string &str, typename Traits::Type &result);
-
-    static void collectionFromString(const std::string &str,
-                                     typename Traits::Collection &collection,
-                                     const char *del = "|");
-
-    static uint32_t maskFromString(const std::string &str, const char *del = "|");
-
-protected:
-    struct Table {
-        const char *literal;
-        typename Traits::Type value;
-    };
-
-    static const Table mTable[];
-    static const size_t mSize;
-};
-
-typedef TypeConverter<DeviceTraits> DeviceConverter;
-typedef TypeConverter<OutputFlagTraits> OutputFlagConverter;
-typedef TypeConverter<InputFlagTraits> InputFlagConverter;
-typedef TypeConverter<FormatTraits> FormatConverter;
-typedef TypeConverter<OutputChannelTraits> OutputChannelConverter;
-typedef TypeConverter<InputChannelTraits> InputChannelConverter;
-typedef TypeConverter<ChannelIndexTraits> ChannelIndexConverter;
-typedef TypeConverter<GainModeTraits> GainModeConverter;
-typedef TypeConverter<StreamTraits> StreamTypeConverter;
 typedef TypeConverter<DeviceCategoryTraits> DeviceCategoryConverter;
-
-inline
-static SampleRateTraits::Collection samplingRatesFromString(const std::string &samplingRates,
-                                                            const char *del = "|")
-{
-    SampleRateTraits::Collection samplingRateCollection;
-    collectionFromString<SampleRateTraits>(samplingRates, samplingRateCollection, del);
-    return samplingRateCollection;
-}
-
-inline
-static FormatTraits::Collection formatsFromString(const std::string &formats, const char *del = "|")
-{
-    FormatTraits::Collection formatCollection;
-    FormatConverter::collectionFromString(formats, formatCollection, del);
-    return formatCollection;
-}
-
-inline
-static audio_format_t formatFromString(const std::string &literalFormat)
-{
-    audio_format_t format;
-    if (literalFormat.empty()) {
-        return gDynamicFormat;
-    }
-    FormatConverter::fromString(literalFormat, format);
-    return format;
-}
-
-inline
-static audio_channel_mask_t channelMaskFromString(const std::string &literalChannels)
-{
-    audio_channel_mask_t channels;
-    if (!OutputChannelConverter::fromString(literalChannels, channels) ||
-            !InputChannelConverter::fromString(literalChannels, channels)) {
-        return AUDIO_CHANNEL_INVALID;
-    }
-    return channels;
-}
-
-inline
-static ChannelTraits::Collection channelMasksFromString(const std::string &channels,
-                                                        const char *del = "|")
-{
-    ChannelTraits::Collection channelMaskCollection;
-    OutputChannelConverter::collectionFromString(channels, channelMaskCollection, del);
-    InputChannelConverter::collectionFromString(channels, channelMaskCollection, del);
-    ChannelIndexConverter::collectionFromString(channels, channelMaskCollection, del);
-    return channelMaskCollection;
-}
-
-inline
-static InputChannelTraits::Collection inputChannelMasksFromString(const std::string &inChannels,
-                                                                  const char *del = "|")
-{
-    InputChannelTraits::Collection inputChannelMaskCollection;
-    InputChannelConverter::collectionFromString(inChannels, inputChannelMaskCollection, del);
-    ChannelIndexConverter::collectionFromString(inChannels, inputChannelMaskCollection, del);
-    return inputChannelMaskCollection;
-}
-
-inline
-static OutputChannelTraits::Collection outputChannelMasksFromString(const std::string &outChannels,
-                                                                    const char *del = "|")
-{
-    OutputChannelTraits::Collection outputChannelMaskCollection;
-    OutputChannelConverter::collectionFromString(outChannels, outputChannelMaskCollection, del);
-    ChannelIndexConverter::collectionFromString(outChannels, outputChannelMaskCollection, del);
-    return outputChannelMaskCollection;
-}
+typedef TypeConverter<MixTypeTraits> MixTypeConverter;
+typedef TypeConverter<RouteFlagTraits> RouteFlagTypeConverter;
+typedef TypeConverter<RuleTraits> RuleTypeConverter;
 
 }; // namespace android
-
diff --git a/services/audiopolicy/common/managerdefinitions/include/VolumeCurve.h b/services/audiopolicy/common/managerdefinitions/include/VolumeCurve.h
index 10f0766..e7fcefc 100644
--- a/services/audiopolicy/common/managerdefinitions/include/VolumeCurve.h
+++ b/services/audiopolicy/common/managerdefinitions/include/VolumeCurve.h
@@ -18,7 +18,6 @@
 
 #include "IVolumeCurvesCollection.h"
 #include <policy.h>
-#include <hardware/audio.h>
 #include <utils/RefBase.h>
 #include <utils/String8.h>
 #include <utils/SortedVector.h>
diff --git a/services/audiopolicy/common/managerdefinitions/src/AudioInputDescriptor.cpp b/services/audiopolicy/common/managerdefinitions/src/AudioInputDescriptor.cpp
index c7d2ee4..2492ed6 100644
--- a/services/audiopolicy/common/managerdefinitions/src/AudioInputDescriptor.cpp
+++ b/services/audiopolicy/common/managerdefinitions/src/AudioInputDescriptor.cpp
@@ -63,11 +63,9 @@
     return mId;
 }
 
-audio_source_t AudioInputDescriptor::inputSource() const
+audio_source_t AudioInputDescriptor::inputSource(bool activeOnly) const
 {
-    // TODO: return highest priority input source
-    return mSessions.size() > 0 ? mSessions.valueAt(0)->inputSource() :
-                       AUDIO_SOURCE_DEFAULT;
+    return getHighestPrioritySource(activeOnly);
 }
 
 void AudioInputDescriptor::toAudioPortConfig(struct audio_port_config *dstConfig,
@@ -132,6 +130,12 @@
     return mSessions.isSourceActive(source);
 }
 
+audio_source_t AudioInputDescriptor::getHighestPrioritySource(bool activeOnly) const
+{
+
+    return mSessions.getHighestPrioritySource(activeOnly);
+}
+
 bool AudioInputDescriptor::isSoundTrigger() const {
     // sound trigger and non sound trigger sessions are not mixed
     // on a given input
@@ -143,9 +147,22 @@
     return mSessions.valueFor(session);
 }
 
-AudioSessionCollection AudioInputDescriptor::getActiveAudioSessions() const
+AudioSessionCollection AudioInputDescriptor::getAudioSessions(bool activeOnly) const
 {
-    return mSessions.getActiveSessions();
+    if (activeOnly) {
+        return mSessions.getActiveSessions();
+    } else {
+        return mSessions;
+    }
+}
+
+size_t AudioInputDescriptor::getAudioSessionCount(bool activeOnly) const
+{
+    if (activeOnly) {
+        return mSessions.getActiveSessionCount();
+    } else {
+        return mSessions.size();
+    }
 }
 
 status_t AudioInputDescriptor::addAudioSession(audio_session_t session,
@@ -236,17 +253,19 @@
     return count;
 }
 
-audio_io_handle_t AudioInputCollection::getActiveInput(bool ignoreVirtualInputs)
+Vector<sp <AudioInputDescriptor> > AudioInputCollection::getActiveInputs(bool ignoreVirtualInputs)
 {
+    Vector<sp <AudioInputDescriptor> > activeInputs;
+
     for (size_t i = 0; i < size(); i++) {
         const sp<AudioInputDescriptor>  inputDescriptor = valueAt(i);
         if ((inputDescriptor->isActive())
                 && (!ignoreVirtualInputs ||
                     !is_virtual_input_device(inputDescriptor->mDevice))) {
-            return keyAt(i);
+            activeInputs.add(inputDescriptor);
         }
     }
-    return 0;
+    return activeInputs;
 }
 
 audio_devices_t AudioInputCollection::getSupportedDevices(audio_io_handle_t handle) const
diff --git a/services/audiopolicy/common/managerdefinitions/src/AudioOutputDescriptor.cpp b/services/audiopolicy/common/managerdefinitions/src/AudioOutputDescriptor.cpp
index 1dbc3d0..5643335 100644
--- a/services/audiopolicy/common/managerdefinitions/src/AudioOutputDescriptor.cpp
+++ b/services/audiopolicy/common/managerdefinitions/src/AudioOutputDescriptor.cpp
@@ -81,7 +81,7 @@
         return sharesHwModuleWith(outputDesc->subOutput1()) ||
                     sharesHwModuleWith(outputDesc->subOutput2());
     } else {
-        return (getModuleHandle() == outputDesc->getModuleHandle());
+        return hasSameHwModuleAs(outputDesc);
     }
 }
 
@@ -223,7 +223,7 @@
     : AudioOutputDescriptor(profile, clientInterface),
     mProfile(profile), mIoHandle(0), mLatency(0),
     mFlags((audio_output_flags_t)0), mPolicyMix(NULL),
-    mOutput1(0), mOutput2(0), mDirectOpenCount(0), mGlobalRefCount(0)
+    mOutput1(0), mOutput2(0), mDirectOpenCount(0), mDirectClientUid(0), mGlobalRefCount(0)
 {
     if (profile != NULL) {
         mFlags = (audio_output_flags_t)profile->getFlags();
diff --git a/services/audiopolicy/common/managerdefinitions/src/AudioPatch.cpp b/services/audiopolicy/common/managerdefinitions/src/AudioPatch.cpp
index 6059009..32606ea 100644
--- a/services/audiopolicy/common/managerdefinitions/src/AudioPatch.cpp
+++ b/services/audiopolicy/common/managerdefinitions/src/AudioPatch.cpp
@@ -22,6 +22,7 @@
 #include "TypeConverter.h"
 
 #include <log/log.h>
+#include <cutils/atomic.h>
 #include <utils/String8.h>
 
 namespace android {
@@ -55,7 +56,7 @@
     for (size_t i = 0; i < mPatch.num_sources; i++) {
         if (mPatch.sources[i].type == AUDIO_PORT_TYPE_DEVICE) {
             std::string device;
-            DeviceConverter::toString(mPatch.sources[i].ext.device.type, device);
+            deviceToString(mPatch.sources[i].ext.device.type, device);
             snprintf(buffer, SIZE, "%*s- Device ID %d %s\n", spaces + 2, "",
                      mPatch.sources[i].id,
                      device.c_str());
@@ -70,7 +71,7 @@
     for (size_t i = 0; i < mPatch.num_sinks; i++) {
         if (mPatch.sinks[i].type == AUDIO_PORT_TYPE_DEVICE) {
             std::string device;
-            DeviceConverter::toString(mPatch.sinks[i].ext.device.type, device);
+            deviceToString(mPatch.sinks[i].ext.device.type, device);
             snprintf(buffer, SIZE, "%*s- Device ID %d %s\n", spaces + 2, "",
                      mPatch.sinks[i].id,
                      device.c_str());
diff --git a/services/audiopolicy/common/managerdefinitions/src/AudioPolicyMix.cpp b/services/audiopolicy/common/managerdefinitions/src/AudioPolicyMix.cpp
index 02833a9..08930f1 100644
--- a/services/audiopolicy/common/managerdefinitions/src/AudioPolicyMix.cpp
+++ b/services/audiopolicy/common/managerdefinitions/src/AudioPolicyMix.cpp
@@ -18,6 +18,7 @@
 //#define LOG_NDEBUG 0
 
 #include "AudioPolicyMix.h"
+#include "TypeConverter.h"
 #include "HwModule.h"
 #include "AudioPort.h"
 #include "IOProfile.h"
@@ -51,6 +52,66 @@
     return &mMix;
 }
 
+status_t AudioPolicyMix::dump(int fd, int spaces, int index) const
+{
+    const size_t SIZE = 256;
+    char buffer[SIZE];
+    String8 result;
+
+    snprintf(buffer, SIZE, "%*sAudio Policy Mix %d:\n", spaces, "", index+1);
+    result.append(buffer);
+    std::string mixTypeLiteral;
+    if (!MixTypeConverter::toString(mMix.mMixType, mixTypeLiteral)) {
+        ALOGE("%s: failed to convert mix type %d", __FUNCTION__, mMix.mMixType);
+        return BAD_VALUE;
+    }
+    snprintf(buffer, SIZE, "%*s- mix type: %s\n", spaces, "", mixTypeLiteral.c_str());
+    result.append(buffer);
+    std::string routeFlagLiteral;
+    RouteFlagTypeConverter::maskToString(mMix.mRouteFlags, routeFlagLiteral);
+    snprintf(buffer, SIZE, "%*s- Route Flags: %s\n", spaces, "", routeFlagLiteral.c_str());
+    result.append(buffer);
+    std::string deviceLiteral;
+    deviceToString(mMix.mDeviceType, deviceLiteral);
+    snprintf(buffer, SIZE, "%*s- device type: %s\n", spaces, "", deviceLiteral.c_str());
+    result.append(buffer);
+    snprintf(buffer, SIZE, "%*s- device address: %s\n", spaces, "", mMix.mDeviceAddress.string());
+    result.append(buffer);
+
+    int indexCriterion = 0;
+    for (const auto &criterion : mMix.mCriteria) {
+        snprintf(buffer, SIZE, "%*s- Criterion %d:\n", spaces + 2, "", indexCriterion++);
+        result.append(buffer);
+        std::string usageLiteral;
+        if (!UsageTypeConverter::toString(criterion.mValue.mUsage, usageLiteral)) {
+            ALOGE("%s: failed to convert usage %d", __FUNCTION__, criterion.mValue.mUsage);
+            return BAD_VALUE;
+        }
+        snprintf(buffer, SIZE, "%*s- Usage:%s\n", spaces + 4, "", usageLiteral.c_str());
+        result.append(buffer);
+        if (mMix.mMixType == MIX_TYPE_RECORDERS) {
+            std::string sourceLiteral;
+            if (!SourceTypeConverter::toString(criterion.mValue.mSource, sourceLiteral)) {
+                ALOGE("%s: failed to convert source %d", __FUNCTION__, criterion.mValue.mSource);
+                return BAD_VALUE;
+            }
+            snprintf(buffer, SIZE, "%*s- Source:%s\n", spaces + 4, "", sourceLiteral.c_str());
+            result.append(buffer);
+        }
+        snprintf(buffer, SIZE, "%*s- Uid:%d\n", spaces + 4, "", criterion.mValue.mUid);
+        result.append(buffer);
+        std::string ruleLiteral;
+        if (!RuleTypeConverter::toString(criterion.mRule, ruleLiteral)) {
+            ALOGE("%s: failed to convert source %d", __FUNCTION__,criterion.mRule);
+            return BAD_VALUE;
+        }
+        snprintf(buffer, SIZE, "%*s- Rule:%s\n", spaces + 4, "", ruleLiteral.c_str());
+        result.append(buffer);
+    }
+    write(fd, result.string(), result.size());
+    return NO_ERROR;
+}
+
 status_t AudioPolicyMixCollection::registerMix(const String8& address, AudioMix mix,
                                                sp<SwAudioOutputDescriptor> desc)
 {
@@ -288,4 +349,14 @@
     return NO_ERROR;
 }
 
+status_t AudioPolicyMixCollection::dump(int fd) const
+{
+    std::string log("\nAudio Policy Mix:\n");
+    write(fd, log.c_str(), log.size());
+    for (size_t i = 0; i < size(); i++) {
+        valueAt(i)->dump(fd, 2, i);
+    }
+    return NO_ERROR;
+}
+
 }; //namespace android
diff --git a/services/audiopolicy/common/managerdefinitions/src/AudioPort.cpp b/services/audiopolicy/common/managerdefinitions/src/AudioPort.cpp
index 31bf95c..6ed2cb7 100644
--- a/services/audiopolicy/common/managerdefinitions/src/AudioPort.cpp
+++ b/services/audiopolicy/common/managerdefinitions/src/AudioPort.cpp
@@ -21,6 +21,7 @@
 #include "HwModule.h"
 #include "AudioGain.h"
 #include <policy.h>
+#include <cutils/atomic.h>
 
 #ifndef ARRAY_SIZE
 #define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
@@ -50,12 +51,12 @@
     return mModule->mHandle;
 }
 
-uint32_t AudioPort::getModuleVersion() const
+uint32_t AudioPort::getModuleVersionMajor() const
 {
     if (mModule == 0) {
         return 0;
     }
-    return mModule->getHalVersion();
+    return mModule->getHalVersionMajor();
 }
 
 const char *AudioPort::getModuleName() const
diff --git a/services/audiopolicy/common/managerdefinitions/src/AudioSession.cpp b/services/audiopolicy/common/managerdefinitions/src/AudioSession.cpp
index a246c3d..dbdcca7 100644
--- a/services/audiopolicy/common/managerdefinitions/src/AudioSession.cpp
+++ b/services/audiopolicy/common/managerdefinitions/src/AudioSession.cpp
@@ -18,6 +18,7 @@
 //#define LOG_NDEBUG 0
 
 #include <AudioPolicyInterface.h>
+#include "policy.h"
 #include "AudioSession.h"
 #include "AudioGain.h"
 #include "TypeConverter.h"
@@ -215,9 +216,20 @@
     return activeSessions;
 }
 
+size_t AudioSessionCollection::getActiveSessionCount() const
+{
+    size_t activeCount = 0;
+    for (size_t i = 0; i < size(); i++) {
+        if (valueAt(i)->activeCount() != 0) {
+            activeCount++;
+        }
+    }
+    return activeCount;
+}
+
 bool AudioSessionCollection::hasActiveSession() const
 {
-    return getActiveSessions().size() != 0;
+    return getActiveSessionCount() != 0;
 }
 
 bool AudioSessionCollection::isSourceActive(audio_source_t source) const
@@ -237,6 +249,25 @@
     return false;
 }
 
+audio_source_t AudioSessionCollection::getHighestPrioritySource(bool activeOnly) const
+{
+    audio_source_t source = AUDIO_SOURCE_DEFAULT;
+    int32_t priority = -1;
+
+    for (size_t i = 0; i < size(); i++) {
+        const sp<AudioSession>  audioSession = valueAt(i);
+        if (activeOnly && audioSession->activeCount() == 0) {
+            continue;
+        }
+        int32_t curPriority = source_priority(audioSession->inputSource());
+        if (curPriority > priority) {
+            priority = curPriority;
+            source = audioSession->inputSource();
+        }
+    }
+    return source;
+}
+
 void AudioSessionCollection::onSessionInfoUpdate() const
 {
     for (size_t i = 0; i < size(); i++) {
@@ -244,7 +275,6 @@
     }
 }
 
-
 status_t AudioSessionCollection::dump(int fd, int spaces) const
 {
     const size_t SIZE = 256;
diff --git a/services/audiopolicy/common/managerdefinitions/src/ConfigParsingUtils.cpp b/services/audiopolicy/common/managerdefinitions/src/ConfigParsingUtils.cpp
index a3536e5..e5888e2 100644
--- a/services/audiopolicy/common/managerdefinitions/src/ConfigParsingUtils.cpp
+++ b/services/audiopolicy/common/managerdefinitions/src/ConfigParsingUtils.cpp
@@ -18,11 +18,11 @@
 //#define LOG_NDEBUG 0
 
 #include "ConfigParsingUtils.h"
-#include <convert/convert.h>
 #include "AudioGain.h"
 #include "IOProfile.h"
-#include "TypeConverter.h"
-#include <hardware/audio.h>
+#include <system/audio.h>
+#include <media/AudioParameter.h>
+#include <media/TypeConverter.h>
 #include <utils/Log.h>
 #include <cutils/misc.h>
 
@@ -105,7 +105,7 @@
     audio_devices_t type = AUDIO_DEVICE_NONE;
     while (node) {
         if (strcmp(node->name, APM_DEVICE_TYPE) == 0) {
-            DeviceConverter::fromString(node->value, type);
+            deviceFromString(node->value, type);
             break;
         }
         node = node->next;
@@ -289,11 +289,11 @@
                                             const DeviceVector &declaredDevices)
 {
     char *tagLiteral = strndup(tag, strlen(tag));
-    char *devTag = strtok(tagLiteral, "|");
+    char *devTag = strtok(tagLiteral, AudioParameter::valueListSeparator);
     while (devTag != NULL) {
         if (strlen(devTag) != 0) {
             audio_devices_t type;
-            if (DeviceConverter::fromString(devTag, type)) {
+            if (deviceFromString(devTag, type)) {
                 uint32_t inBit = type & AUDIO_DEVICE_BIT_IN;
                 type &= ~AUDIO_DEVICE_BIT_IN;
                 while (type) {
@@ -311,7 +311,7 @@
                 }
             }
         }
-        devTag = strtok(NULL, "|");
+        devTag = strtok(NULL, AudioParameter::valueListSeparator);
     }
     free(tagLiteral);
 }
@@ -340,7 +340,7 @@
             config.addAvailableOutputDevices(availableOutputDevices);
         } else if (strcmp(DEFAULT_OUTPUT_DEVICE_TAG, node->name) == 0) {
             audio_devices_t device = AUDIO_DEVICE_NONE;
-            DeviceConverter::fromString(node->value, device);
+            deviceFromString(node->value, device);
             if (device != AUDIO_DEVICE_NONE) {
                 sp<DeviceDescriptor> defaultOutputDevice = new DeviceDescriptor(device);
                 config.setDefaultOutputDevice(defaultOutputDevice);
@@ -356,9 +356,8 @@
         } else if (strcmp(AUDIO_HAL_VERSION_TAG, node->name) == 0) {
             uint32_t major, minor;
             sscanf((char *)node->value, "%u.%u", &major, &minor);
-            module->setHalVersion(HARDWARE_DEVICE_API_VERSION(major, minor));
-            ALOGV("loadGlobalConfig() mHalVersion = %04x major %u minor %u",
-                  module->getHalVersion(), major, minor);
+            module->setHalVersion(major, minor);
+            ALOGV("loadGlobalConfig() mHalVersion = major %u minor %u", major, minor);
         }
         node = node->next;
     }
diff --git a/services/audiopolicy/common/managerdefinitions/src/DeviceDescriptor.cpp b/services/audiopolicy/common/managerdefinitions/src/DeviceDescriptor.cpp
index ba2b9e3..f0e48b6 100644
--- a/services/audiopolicy/common/managerdefinitions/src/DeviceDescriptor.cpp
+++ b/services/audiopolicy/common/managerdefinitions/src/DeviceDescriptor.cpp
@@ -285,7 +285,7 @@
         result.append(buffer);
     }
     std::string deviceLiteral;
-    if (DeviceConverter::toString(mDeviceType, deviceLiteral)) {
+    if (deviceToString(mDeviceType, deviceLiteral)) {
         snprintf(buffer, SIZE, "%*s- type: %-48s\n", spaces, "", deviceLiteral.c_str());
         result.append(buffer);
     }
@@ -302,7 +302,7 @@
 void DeviceDescriptor::log() const
 {
     std::string device;
-    DeviceConverter::toString(mDeviceType, device);
+    deviceToString(mDeviceType, device);
     ALOGI("Device id:%d type:0x%X:%s, addr:%s", mId,  mDeviceType, device.c_str(),
           mAddress.string());
 
diff --git a/services/audiopolicy/common/managerdefinitions/src/HwModule.cpp b/services/audiopolicy/common/managerdefinitions/src/HwModule.cpp
index 7a942cd..cc56fb8 100644
--- a/services/audiopolicy/common/managerdefinitions/src/HwModule.cpp
+++ b/services/audiopolicy/common/managerdefinitions/src/HwModule.cpp
@@ -20,16 +20,16 @@
 #include "HwModule.h"
 #include "IOProfile.h"
 #include "AudioGain.h"
-#include <hardware/audio.h>
 #include <policy.h>
+#include <system/audio.h>
 
 namespace android {
 
-HwModule::HwModule(const char *name, uint32_t halVersion)
+HwModule::HwModule(const char *name, uint32_t halVersionMajor, uint32_t halVersionMinor)
     : mName(String8(name)),
-      mHandle(AUDIO_MODULE_HANDLE_NONE),
-      mHalVersion(halVersion)
+      mHandle(AUDIO_MODULE_HANDLE_NONE)
 {
+    setHalVersion(halVersionMajor, halVersionMinor);
 }
 
 HwModule::~HwModule()
@@ -42,8 +42,8 @@
     }
 }
 
-status_t HwModule::addOutputProfile(const String8 &name, const audio_config_t *config,
-                                    audio_devices_t device, const String8 &address)
+status_t HwModule::addOutputProfile(const String8& name, const audio_config_t *config,
+                                    audio_devices_t device, const String8& address)
 {
     sp<IOProfile> profile = new OutputProfile(name);
 
@@ -227,7 +227,7 @@
     result.append(buffer);
     snprintf(buffer, SIZE, "  - handle: %d\n", mHandle);
     result.append(buffer);
-    snprintf(buffer, SIZE, "  - version: %u.%u\n", mHalVersion >> 8, mHalVersion & 0xFF);
+    snprintf(buffer, SIZE, "  - version: %u.%u\n", getHalVersionMajor(), getHalVersionMinor());
     result.append(buffer);
     write(fd, result.string(), result.size());
     if (mOutputProfiles.size()) {
diff --git a/services/audiopolicy/common/managerdefinitions/src/IOProfile.cpp b/services/audiopolicy/common/managerdefinitions/src/IOProfile.cpp
index 57f2534..74ef4ec 100644
--- a/services/audiopolicy/common/managerdefinitions/src/IOProfile.cpp
+++ b/services/audiopolicy/common/managerdefinitions/src/IOProfile.cpp
@@ -108,8 +108,18 @@
 
     AudioPort::dump(fd, 4);
 
-    snprintf(buffer, SIZE, "    - flags: 0x%04x\n", getFlags());
+    snprintf(buffer, SIZE, "    - flags: 0x%04x", getFlags());
     result.append(buffer);
+    std::string flagsLiteral;
+    if (getRole() == AUDIO_PORT_ROLE_SINK) {
+        InputFlagConverter::maskToString(getFlags(), flagsLiteral);
+    } else if (getRole() == AUDIO_PORT_ROLE_SOURCE) {
+        OutputFlagConverter::maskToString(getFlags(), flagsLiteral);
+    }
+    if (!flagsLiteral.empty()) {
+        result.appendFormat(" (%s)", flagsLiteral.c_str());
+    }
+    result.append("\n");
     write(fd, result.string(), result.size());
     mSupportedDevices.dump(fd, String8("Supported"), 4, false);
 }
diff --git a/services/audiopolicy/common/managerdefinitions/src/Serializer.cpp b/services/audiopolicy/common/managerdefinitions/src/Serializer.cpp
index 2ecd6b1..a224004 100644
--- a/services/audiopolicy/common/managerdefinitions/src/Serializer.cpp
+++ b/services/audiopolicy/common/managerdefinitions/src/Serializer.cpp
@@ -18,7 +18,7 @@
 //#define LOG_NDEBUG 0
 
 #include "Serializer.h"
-#include <convert/convert.h>
+#include <media/convert.h>
 #include "TypeConverter.h"
 #include <libxml/parser.h>
 #include <libxml/xinclude.h>
@@ -199,7 +199,8 @@
     string format = getXmlAttribute(root, Attributes::format);
     string channels = getXmlAttribute(root, Attributes::channelMasks);
 
-    profile = new Element(formatFromString(format), channelMasksFromString(channels, ","),
+    profile = new Element(formatFromString(format, gDynamicFormat),
+                          channelMasksFromString(channels, ","),
                           samplingRatesFromString(samplingRates, ","));
 
     profile->setDynamicFormat(profile->getFormat() == gDynamicFormat);
@@ -300,7 +301,7 @@
                 AUDIO_PORT_ROLE_SOURCE : AUDIO_PORT_ROLE_SINK;
 
     audio_devices_t type = AUDIO_DEVICE_NONE;
-    if (!DeviceConverter::fromString(typeName, type) ||
+    if (!deviceFromString(typeName, type) ||
             (!audio_is_input_device(type) && portRole == AUDIO_PORT_ROLE_SOURCE) ||
             (!audio_is_output_devices(type) && portRole == AUDIO_PORT_ROLE_SINK)) {
         ALOGW("%s: bad type %08x", __FUNCTION__, type);
@@ -419,19 +420,17 @@
         ALOGE("%s: No %s found", __FUNCTION__, Attributes::name);
         return BAD_VALUE;
     }
-    uint32_t version = AUDIO_DEVICE_API_VERSION_MIN;
+    uint32_t versionMajor = 0, versionMinor = 0;
     string versionLiteral = getXmlAttribute(root, Attributes::version);
     if (!versionLiteral.empty()) {
-        uint32_t major, minor;
-        sscanf(versionLiteral.c_str(), "%u.%u", &major, &minor);
-        version = HARDWARE_DEVICE_API_VERSION(major, minor);
-        ALOGV("%s: mHalVersion = %04x major %u minor %u",  __FUNCTION__,
-              version, major, minor);
+        sscanf(versionLiteral.c_str(), "%u.%u", &versionMajor, &versionMinor);
+        ALOGV("%s: mHalVersion = major %u minor %u",  __FUNCTION__,
+              versionMajor, versionMajor);
     }
 
     ALOGV("%s: %s %s=%s", __FUNCTION__, tag, Attributes::name, name.c_str());
 
-    module = new Element(name.c_str(), version);
+    module = new Element(name.c_str(), versionMajor, versionMinor);
 
     // Deserialize childrens: Audio Mix Port, Audio Device Ports (Source/Sink), Audio Routes
     MixPortTraits::Collection mixPorts;
diff --git a/services/audiopolicy/common/managerdefinitions/src/TypeConverter.cpp b/services/audiopolicy/common/managerdefinitions/src/TypeConverter.cpp
index 48bfd79..0362037 100644
--- a/services/audiopolicy/common/managerdefinitions/src/TypeConverter.cpp
+++ b/services/audiopolicy/common/managerdefinitions/src/TypeConverter.cpp
@@ -14,290 +14,55 @@
  * limitations under the License.
  */
 
+#include <media/AudioPolicy.h>
+
 #include "TypeConverter.h"
 
 namespace android {
 
 #define MAKE_STRING_FROM_ENUM(string) { #string, string }
-
-template <>
-const DeviceConverter::Table DeviceConverter::mTable[] = {
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_EARPIECE),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_SPEAKER),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_SPEAKER_SAFE),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_WIRED_HEADSET),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_WIRED_HEADPHONE),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_SCO),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_SCO_HEADSET),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_SCO_CARKIT),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_ALL_SCO),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_A2DP),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_ALL_A2DP),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_AUX_DIGITAL),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_HDMI),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_ANLG_DOCK_HEADSET),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_USB_ACCESSORY),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_USB_DEVICE),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_ALL_USB),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_REMOTE_SUBMIX),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_TELEPHONY_TX),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_LINE),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_HDMI_ARC),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_SPDIF),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_FM),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_AUX_LINE),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_IP),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_BUS),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_OUT_STUB),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_AMBIENT),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_BUILTIN_MIC),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_ALL_SCO),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_WIRED_HEADSET),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_AUX_DIGITAL),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_HDMI),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_TELEPHONY_RX),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_VOICE_CALL),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_BACK_MIC),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_REMOTE_SUBMIX),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_ANLG_DOCK_HEADSET),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_DGTL_DOCK_HEADSET),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_USB_ACCESSORY),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_USB_DEVICE),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_FM_TUNER),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_TV_TUNER),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_LINE),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_SPDIF),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_BLUETOOTH_A2DP),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_LOOPBACK),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_IP),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_BUS),
-        MAKE_STRING_FROM_ENUM(AUDIO_DEVICE_IN_STUB),
-};
-
-template<>
-const size_t DeviceConverter::mSize = sizeof(DeviceConverter::mTable) /
-        sizeof(DeviceConverter::mTable[0]);
-
-
-template <>
-const OutputFlagConverter::Table OutputFlagConverter::mTable[] = {
-    MAKE_STRING_FROM_ENUM(AUDIO_OUTPUT_FLAG_DIRECT),
-    MAKE_STRING_FROM_ENUM(AUDIO_OUTPUT_FLAG_PRIMARY),
-    MAKE_STRING_FROM_ENUM(AUDIO_OUTPUT_FLAG_FAST),
-    MAKE_STRING_FROM_ENUM(AUDIO_OUTPUT_FLAG_DEEP_BUFFER),
-    MAKE_STRING_FROM_ENUM(AUDIO_OUTPUT_FLAG_COMPRESS_OFFLOAD),
-    MAKE_STRING_FROM_ENUM(AUDIO_OUTPUT_FLAG_NON_BLOCKING),
-    MAKE_STRING_FROM_ENUM(AUDIO_OUTPUT_FLAG_HW_AV_SYNC),
-    MAKE_STRING_FROM_ENUM(AUDIO_OUTPUT_FLAG_TTS),
-    MAKE_STRING_FROM_ENUM(AUDIO_OUTPUT_FLAG_RAW),
-    MAKE_STRING_FROM_ENUM(AUDIO_OUTPUT_FLAG_SYNC),
-};
-template<>
-const size_t OutputFlagConverter::mSize = sizeof(OutputFlagConverter::mTable) /
-        sizeof(OutputFlagConverter::mTable[0]);
-
-
-template <>
-const InputFlagConverter::Table InputFlagConverter::mTable[] = {
-    MAKE_STRING_FROM_ENUM(AUDIO_INPUT_FLAG_FAST),
-    MAKE_STRING_FROM_ENUM(AUDIO_INPUT_FLAG_HW_HOTWORD),
-    MAKE_STRING_FROM_ENUM(AUDIO_INPUT_FLAG_RAW),
-    MAKE_STRING_FROM_ENUM(AUDIO_INPUT_FLAG_SYNC),
-};
-template<>
-const size_t InputFlagConverter::mSize = sizeof(InputFlagConverter::mTable) /
-        sizeof(InputFlagConverter::mTable[0]);
-
-
-template <>
-const FormatConverter::Table FormatConverter::mTable[] = {
-    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_PCM_16_BIT),
-    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_PCM_8_BIT),
-    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_PCM_32_BIT),
-    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_PCM_8_24_BIT),
-    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_PCM_FLOAT),
-    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_PCM_24_BIT_PACKED),
-    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_MP3),
-    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AAC),
-    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AAC_MAIN),
-    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AAC_LC),
-    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AAC_SSR),
-    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AAC_LTP),
-    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AAC_HE_V1),
-    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AAC_SCALABLE),
-    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AAC_ERLC),
-    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AAC_LD),
-    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AAC_HE_V2),
-    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AAC_ELD),
-    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_VORBIS),
-    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_HE_AAC_V1),
-    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_HE_AAC_V2),
-    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_OPUS),
-    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_AC3),
-    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_E_AC3),
-    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_DTS),
-    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_DTS_HD),
-    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_IEC61937),
-    MAKE_STRING_FROM_ENUM(AUDIO_FORMAT_DOLBY_TRUEHD),
-};
-template<>
-const size_t FormatConverter::mSize = sizeof(FormatConverter::mTable) /
-        sizeof(FormatConverter::mTable[0]);
-
-
-template <>
-const OutputChannelConverter::Table OutputChannelConverter::mTable[] = {
-    MAKE_STRING_FROM_ENUM(AUDIO_CHANNEL_OUT_MONO),
-    MAKE_STRING_FROM_ENUM(AUDIO_CHANNEL_OUT_STEREO),
-    MAKE_STRING_FROM_ENUM(AUDIO_CHANNEL_OUT_QUAD),
-    MAKE_STRING_FROM_ENUM(AUDIO_CHANNEL_OUT_5POINT1),
-    MAKE_STRING_FROM_ENUM(AUDIO_CHANNEL_OUT_7POINT1),
-};
-template<>
-const size_t OutputChannelConverter::mSize = sizeof(OutputChannelConverter::mTable) /
-        sizeof(OutputChannelConverter::mTable[0]);
-
-
-template <>
-const InputChannelConverter::Table InputChannelConverter::mTable[] = {
-    MAKE_STRING_FROM_ENUM(AUDIO_CHANNEL_IN_MONO),
-    MAKE_STRING_FROM_ENUM(AUDIO_CHANNEL_IN_STEREO),
-    MAKE_STRING_FROM_ENUM(AUDIO_CHANNEL_IN_FRONT_BACK),
-};
-template<>
-const size_t InputChannelConverter::mSize = sizeof(InputChannelConverter::mTable) /
-        sizeof(InputChannelConverter::mTable[0]);
-
-template <>
-const ChannelIndexConverter::Table ChannelIndexConverter::mTable[] = {
-    {"AUDIO_CHANNEL_INDEX_MASK_1", static_cast<audio_channel_mask_t>(AUDIO_CHANNEL_INDEX_MASK_1)},
-    {"AUDIO_CHANNEL_INDEX_MASK_2", static_cast<audio_channel_mask_t>(AUDIO_CHANNEL_INDEX_MASK_2)},
-    {"AUDIO_CHANNEL_INDEX_MASK_3", static_cast<audio_channel_mask_t>(AUDIO_CHANNEL_INDEX_MASK_3)},
-    {"AUDIO_CHANNEL_INDEX_MASK_4", static_cast<audio_channel_mask_t>(AUDIO_CHANNEL_INDEX_MASK_4)},
-    {"AUDIO_CHANNEL_INDEX_MASK_5", static_cast<audio_channel_mask_t>(AUDIO_CHANNEL_INDEX_MASK_5)},
-    {"AUDIO_CHANNEL_INDEX_MASK_6", static_cast<audio_channel_mask_t>(AUDIO_CHANNEL_INDEX_MASK_6)},
-    {"AUDIO_CHANNEL_INDEX_MASK_7", static_cast<audio_channel_mask_t>(AUDIO_CHANNEL_INDEX_MASK_7)},
-    {"AUDIO_CHANNEL_INDEX_MASK_8", static_cast<audio_channel_mask_t>(AUDIO_CHANNEL_INDEX_MASK_8)},
-};
-template<>
-const size_t ChannelIndexConverter::mSize = sizeof(ChannelIndexConverter::mTable) /
-        sizeof(ChannelIndexConverter::mTable[0]);
-
-
-template <>
-const GainModeConverter::Table GainModeConverter::mTable[] = {
-    MAKE_STRING_FROM_ENUM(AUDIO_GAIN_MODE_JOINT),
-    MAKE_STRING_FROM_ENUM(AUDIO_GAIN_MODE_CHANNELS),
-    MAKE_STRING_FROM_ENUM(AUDIO_GAIN_MODE_RAMP),
-};
-
-template<>
-const size_t GainModeConverter::mSize = sizeof(GainModeConverter::mTable) /
-        sizeof(GainModeConverter::mTable[0]);
+#define TERMINATOR { .literal = nullptr }
 
 template <>
 const DeviceCategoryConverter::Table DeviceCategoryConverter::mTable[] = {
     MAKE_STRING_FROM_ENUM(DEVICE_CATEGORY_HEADSET),
     MAKE_STRING_FROM_ENUM(DEVICE_CATEGORY_SPEAKER),
     MAKE_STRING_FROM_ENUM(DEVICE_CATEGORY_EARPIECE),
-    MAKE_STRING_FROM_ENUM(DEVICE_CATEGORY_EXT_MEDIA)
+    MAKE_STRING_FROM_ENUM(DEVICE_CATEGORY_EXT_MEDIA),
+    TERMINATOR
 };
 
-template<>
-const size_t DeviceCategoryConverter::mSize = sizeof(DeviceCategoryConverter::mTable) /
-        sizeof(DeviceCategoryConverter::mTable[0]);
-
 template <>
-const StreamTypeConverter::Table StreamTypeConverter::mTable[] = {
-    MAKE_STRING_FROM_ENUM(AUDIO_STREAM_VOICE_CALL),
-    MAKE_STRING_FROM_ENUM(AUDIO_STREAM_SYSTEM),
-    MAKE_STRING_FROM_ENUM(AUDIO_STREAM_RING),
-    MAKE_STRING_FROM_ENUM(AUDIO_STREAM_MUSIC),
-    MAKE_STRING_FROM_ENUM(AUDIO_STREAM_ALARM),
-    MAKE_STRING_FROM_ENUM(AUDIO_STREAM_NOTIFICATION),
-    MAKE_STRING_FROM_ENUM(AUDIO_STREAM_BLUETOOTH_SCO ),
-    MAKE_STRING_FROM_ENUM(AUDIO_STREAM_ENFORCED_AUDIBLE),
-    MAKE_STRING_FROM_ENUM(AUDIO_STREAM_DTMF),
-    MAKE_STRING_FROM_ENUM(AUDIO_STREAM_TTS),
-    MAKE_STRING_FROM_ENUM(AUDIO_STREAM_ACCESSIBILITY),
-    MAKE_STRING_FROM_ENUM(AUDIO_STREAM_REROUTING),
-    MAKE_STRING_FROM_ENUM(AUDIO_STREAM_PATCH),
+const MixTypeConverter::Table MixTypeConverter::mTable[] = {
+    MAKE_STRING_FROM_ENUM(MIX_TYPE_INVALID),
+    MAKE_STRING_FROM_ENUM(MIX_TYPE_PLAYERS),
+    MAKE_STRING_FROM_ENUM(MIX_TYPE_RECORDERS),
+    TERMINATOR
 };
 
-template<>
-const size_t StreamTypeConverter::mSize = sizeof(StreamTypeConverter::mTable) /
-        sizeof(StreamTypeConverter::mTable[0]);
+template <>
+const RouteFlagTypeConverter::Table RouteFlagTypeConverter::mTable[] = {
+    MAKE_STRING_FROM_ENUM(MIX_ROUTE_FLAG_RENDER),
+    MAKE_STRING_FROM_ENUM(MIX_ROUTE_FLAG_LOOP_BACK),
+    MAKE_STRING_FROM_ENUM(MIX_ROUTE_FLAG_ALL),
+    TERMINATOR
+};
 
-template <class Traits>
-bool TypeConverter<Traits>::toString(const typename Traits::Type &value, std::string &str)
-{
-    for (size_t i = 0; i < mSize; i++) {
-        if (mTable[i].value == value) {
-            str = mTable[i].literal;
-            return true;
-        }
-    }
-    return false;
-}
+template <>
+const RuleTypeConverter::Table RuleTypeConverter::mTable[] = {
+    MAKE_STRING_FROM_ENUM(RULE_EXCLUSION_MASK),
+    MAKE_STRING_FROM_ENUM(RULE_MATCH_ATTRIBUTE_USAGE),
+    MAKE_STRING_FROM_ENUM(RULE_MATCH_ATTRIBUTE_CAPTURE_PRESET),
+    MAKE_STRING_FROM_ENUM(RULE_MATCH_UID),
+    MAKE_STRING_FROM_ENUM(RULE_EXCLUDE_ATTRIBUTE_USAGE),
+    MAKE_STRING_FROM_ENUM(RULE_EXCLUDE_ATTRIBUTE_CAPTURE_PRESET),
+    MAKE_STRING_FROM_ENUM(RULE_EXCLUDE_UID),
+    TERMINATOR
+};
 
-template <class Traits>
-bool TypeConverter<Traits>::fromString(const std::string &str, typename Traits::Type &result)
-{
-    for (size_t i = 0; i < mSize; i++) {
-        if (strcmp(mTable[i].literal, str.c_str()) == 0) {
-            ALOGV("stringToEnum() found %s", mTable[i].literal);
-            result = mTable[i].value;
-            return true;
-        }
-    }
-    return false;
-}
-
-template <class Traits>
-void TypeConverter<Traits>::collectionFromString(const std::string &str,
-                                                 typename Traits::Collection &collection,
-                                                 const char *del)
-{
-    char *literal = strdup(str.c_str());
-
-    for (const char *cstr = strtok(literal, del); cstr != NULL; cstr = strtok(NULL, del)) {
-        typename Traits::Type value;
-        if (fromString(cstr, value)) {
-            collection.add(value);
-        }
-    }
-    free(literal);
-}
-
-template <class Traits>
-uint32_t TypeConverter<Traits>::maskFromString(const std::string &str, const char *del)
-{
-    char *literal = strdup(str.c_str());
-    uint32_t value = 0;
-    for (const char *cstr = strtok(literal, del); cstr != NULL; cstr = strtok(NULL, del)) {
-        typename Traits::Type type;
-        if (fromString(cstr, type)) {
-            value |= static_cast<uint32_t>(type);
-        }
-    }
-    free(literal);
-    return value;
-}
-
-template class TypeConverter<DeviceTraits>;
-template class TypeConverter<OutputFlagTraits>;
-template class TypeConverter<InputFlagTraits>;
-template class TypeConverter<FormatTraits>;
-template class TypeConverter<OutputChannelTraits>;
-template class TypeConverter<InputChannelTraits>;
-template class TypeConverter<ChannelIndexTraits>;
-template class TypeConverter<GainModeTraits>;
-template class TypeConverter<StreamTraits>;
 template class TypeConverter<DeviceCategoryTraits>;
+template class TypeConverter<MixTypeTraits>;
+template class TypeConverter<RouteFlagTraits>;
+template class TypeConverter<RuleTraits>;
 
 }; // namespace android
-
diff --git a/services/audiopolicy/engine/interface/AudioPolicyManagerInterface.h b/services/audiopolicy/engine/interface/AudioPolicyManagerInterface.h
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engine/interface/AudioPolicyManagerObserver.h b/services/audiopolicy/engine/interface/AudioPolicyManagerObserver.h
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/Android.mk b/services/audiopolicy/engineconfigurable/Android.mk
old mode 100755
new mode 100644
index 116077d..5b43347
--- a/services/audiopolicy/engineconfigurable/Android.mk
+++ b/services/audiopolicy/engineconfigurable/Android.mk
@@ -39,18 +39,20 @@
 
 LOCAL_MODULE := libaudiopolicyengineconfigurable
 LOCAL_MODULE_TAGS := optional
+
 LOCAL_STATIC_LIBRARIES := \
-    libmedia_helper \
     libaudiopolicypfwwrapper \
-    libaudiopolicycomponents \
-    libxml2
+    libaudiopolicycomponents
 
 LOCAL_SHARED_LIBRARIES := \
     liblog \
     libcutils \
     libutils \
+    liblog \
     libaudioutils \
-    libparameter
+    libparameter \
+    libmedia_helper \
+    libxml2
 
 include $(BUILD_SHARED_LIBRARY)
 
diff --git a/services/audiopolicy/engineconfigurable/include/AudioPolicyEngineInstance.h b/services/audiopolicy/engineconfigurable/include/AudioPolicyEngineInstance.h
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/include/EngineDefinition.h b/services/audiopolicy/engineconfigurable/include/EngineDefinition.h
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/interface/AudioPolicyPluginInterface.h b/services/audiopolicy/engineconfigurable/interface/AudioPolicyPluginInterface.h
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/parameter-framework/examples/ParameterFrameworkConfigurationPolicy.xml.in b/services/audiopolicy/engineconfigurable/parameter-framework/examples/ParameterFrameworkConfigurationPolicy.xml.in
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/parameter-framework/examples/Settings/strategy_for_stream.pfw b/services/audiopolicy/engineconfigurable/parameter-framework/examples/Settings/strategy_for_stream.pfw
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/parameter-framework/examples/Structure/PolicyClass.xml b/services/audiopolicy/engineconfigurable/parameter-framework/examples/Structure/PolicyClass.xml
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/parameter-framework/examples/Structure/PolicySubsystem-CommonTypes.xml b/services/audiopolicy/engineconfigurable/parameter-framework/examples/Structure/PolicySubsystem-CommonTypes.xml
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/parameter-framework/examples/Structure/PolicySubsystem.xml b/services/audiopolicy/engineconfigurable/parameter-framework/examples/Structure/PolicySubsystem.xml
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/parameter-framework/examples/policy_criteria.txt b/services/audiopolicy/engineconfigurable/parameter-framework/examples/policy_criteria.txt
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/parameter-framework/plugin/Android.mk b/services/audiopolicy/engineconfigurable/parameter-framework/plugin/Android.mk
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/parameter-framework/plugin/InputSource.cpp b/services/audiopolicy/engineconfigurable/parameter-framework/plugin/InputSource.cpp
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/parameter-framework/plugin/InputSource.h b/services/audiopolicy/engineconfigurable/parameter-framework/plugin/InputSource.h
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/parameter-framework/plugin/PolicyMappingKeys.h b/services/audiopolicy/engineconfigurable/parameter-framework/plugin/PolicyMappingKeys.h
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/parameter-framework/plugin/PolicySubsystem.cpp b/services/audiopolicy/engineconfigurable/parameter-framework/plugin/PolicySubsystem.cpp
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/parameter-framework/plugin/PolicySubsystem.h b/services/audiopolicy/engineconfigurable/parameter-framework/plugin/PolicySubsystem.h
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/parameter-framework/plugin/PolicySubsystemBuilder.cpp b/services/audiopolicy/engineconfigurable/parameter-framework/plugin/PolicySubsystemBuilder.cpp
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/parameter-framework/plugin/Strategy.cpp b/services/audiopolicy/engineconfigurable/parameter-framework/plugin/Strategy.cpp
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/parameter-framework/plugin/Strategy.h b/services/audiopolicy/engineconfigurable/parameter-framework/plugin/Strategy.h
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/parameter-framework/plugin/Stream.cpp b/services/audiopolicy/engineconfigurable/parameter-framework/plugin/Stream.cpp
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/parameter-framework/plugin/Stream.h b/services/audiopolicy/engineconfigurable/parameter-framework/plugin/Stream.h
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/parameter-framework/plugin/Usage.cpp b/services/audiopolicy/engineconfigurable/parameter-framework/plugin/Usage.cpp
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/parameter-framework/plugin/Usage.h b/services/audiopolicy/engineconfigurable/parameter-framework/plugin/Usage.h
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/src/Collection.h b/services/audiopolicy/engineconfigurable/src/Collection.h
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/src/Element.h b/services/audiopolicy/engineconfigurable/src/Element.h
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/src/Engine.cpp b/services/audiopolicy/engineconfigurable/src/Engine.cpp
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/src/Engine.h b/services/audiopolicy/engineconfigurable/src/Engine.h
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/src/EngineInstance.cpp b/services/audiopolicy/engineconfigurable/src/EngineInstance.cpp
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/src/InputSource.cpp b/services/audiopolicy/engineconfigurable/src/InputSource.cpp
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/src/InputSource.h b/services/audiopolicy/engineconfigurable/src/InputSource.h
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/src/Strategy.cpp b/services/audiopolicy/engineconfigurable/src/Strategy.cpp
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/src/Strategy.h b/services/audiopolicy/engineconfigurable/src/Strategy.h
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/src/Stream.cpp b/services/audiopolicy/engineconfigurable/src/Stream.cpp
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/src/Stream.h b/services/audiopolicy/engineconfigurable/src/Stream.h
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/src/Usage.cpp b/services/audiopolicy/engineconfigurable/src/Usage.cpp
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/src/Usage.h b/services/audiopolicy/engineconfigurable/src/Usage.h
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/wrapper/Android.mk b/services/audiopolicy/engineconfigurable/wrapper/Android.mk
index c5990ac..066ee0d 100644
--- a/services/audiopolicy/engineconfigurable/wrapper/Android.mk
+++ b/services/audiopolicy/engineconfigurable/wrapper/Android.mk
@@ -14,11 +14,9 @@
 
 LOCAL_SRC_FILES:= ParameterManagerWrapper.cpp
 
-LOCAL_STATIC_LIBRARIES := \
-    libmedia_helper \
-
 LOCAL_SHARED_LIBRARIES := \
     libparameter \
+    libmedia_helper
 
 LOCAL_MULTILIB := $(AUDIOSERVER_MULTILIB)
 
diff --git a/services/audiopolicy/engineconfigurable/wrapper/ParameterManagerWrapper.cpp b/services/audiopolicy/engineconfigurable/wrapper/ParameterManagerWrapper.cpp
old mode 100755
new mode 100644
index fe15d86..9b0442e
--- a/services/audiopolicy/engineconfigurable/wrapper/ParameterManagerWrapper.cpp
+++ b/services/audiopolicy/engineconfigurable/wrapper/ParameterManagerWrapper.cpp
@@ -22,7 +22,7 @@
 #include <ParameterMgrPlatformConnector.h>
 #include <SelectionCriterionTypeInterface.h>
 #include <SelectionCriterionInterface.h>
-#include <convert.h>
+#include <media/convert.h>
 #include <algorithm>
 #include <cutils/config_utils.h>
 #include <cutils/misc.h>
diff --git a/services/audiopolicy/engineconfigurable/wrapper/audio_policy_criteria_conf.h b/services/audiopolicy/engineconfigurable/wrapper/audio_policy_criteria_conf.h
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/wrapper/config/audio_policy_criteria.conf b/services/audiopolicy/engineconfigurable/wrapper/config/audio_policy_criteria.conf
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/engineconfigurable/wrapper/include/ParameterManagerWrapper.h b/services/audiopolicy/engineconfigurable/wrapper/include/ParameterManagerWrapper.h
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/enginedefault/Android.mk b/services/audiopolicy/enginedefault/Android.mk
old mode 100755
new mode 100644
index e6de8ae..b37b379
--- a/services/audiopolicy/enginedefault/Android.mk
+++ b/services/audiopolicy/enginedefault/Android.mk
@@ -35,13 +35,12 @@
 LOCAL_MODULE_TAGS := optional
 
 LOCAL_STATIC_LIBRARIES := \
-    libmedia_helper \
     libaudiopolicycomponents \
-    libxml2
 
 LOCAL_SHARED_LIBRARIES += \
     liblog \
     libcutils \
     libutils \
+    libmedia_helper
 
 include $(BUILD_SHARED_LIBRARY)
diff --git a/services/audiopolicy/enginedefault/include/AudioPolicyEngineInstance.h b/services/audiopolicy/enginedefault/include/AudioPolicyEngineInstance.h
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/enginedefault/src/Engine.cpp b/services/audiopolicy/enginedefault/src/Engine.cpp
old mode 100755
new mode 100644
index d31429c..895818c
--- a/services/audiopolicy/enginedefault/src/Engine.cpp
+++ b/services/audiopolicy/enginedefault/src/Engine.cpp
@@ -202,6 +202,7 @@
 
     case AUDIO_USAGE_MEDIA:
     case AUDIO_USAGE_GAME:
+    case AUDIO_USAGE_ASSISTANT:
     case AUDIO_USAGE_ASSISTANCE_NAVIGATION_GUIDANCE:
     case AUDIO_USAGE_ASSISTANCE_SONIFICATION:
         return STRATEGY_MEDIA;
@@ -320,8 +321,7 @@
             if (((availableInputDevices.types() &
                     AUDIO_DEVICE_IN_TELEPHONY_RX & ~AUDIO_DEVICE_BIT_IN) == 0) ||
                     (((txDevice & availPrimaryInputDevices & ~AUDIO_DEVICE_BIT_IN) != 0) &&
-                         (primaryOutput->getAudioPort()->getModuleVersion() <
-                             AUDIO_DEVICE_API_VERSION_3_0))) {
+                         (primaryOutput->getAudioPort()->getModuleVersionMajor() < 3))) {
                 availableOutputDevicesType = availPrimaryOutputDevices;
             }
         }
diff --git a/services/audiopolicy/enginedefault/src/Engine.h b/services/audiopolicy/enginedefault/src/Engine.h
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/enginedefault/src/EngineInstance.cpp b/services/audiopolicy/enginedefault/src/EngineInstance.cpp
old mode 100755
new mode 100644
diff --git a/services/audiopolicy/managerdefault/AudioPolicyManager.cpp b/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
index 8cb5e0f..7634664 100644
--- a/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
+++ b/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
@@ -24,20 +24,22 @@
 #define ALOGVV(a...) do { } while(0)
 #endif
 
-#define AUDIO_POLICY_XML_CONFIG_FILE "/system/etc/audio_policy_configuration.xml"
+#define AUDIO_POLICY_XML_CONFIG_FILE_PATH_MAX_LENGTH 128
+#define AUDIO_POLICY_XML_CONFIG_FILE_NAME "audio_policy_configuration.xml"
 
 #include <inttypes.h>
 #include <math.h>
 
 #include <AudioPolicyManagerInterface.h>
 #include <AudioPolicyEngineInstance.h>
+#include <cutils/atomic.h>
 #include <cutils/properties.h>
 #include <utils/Log.h>
-#include <hardware/audio.h>
-#include <hardware/audio_effect.h>
 #include <media/AudioParameter.h>
 #include <media/AudioPolicyHelper.h>
 #include <soundtrigger/SoundTrigger.h>
+#include <system/audio.h>
+#include <audio_policy_conf.h>
 #include "AudioPolicyManager.h"
 #ifndef USE_XML_AUDIO_POLICY_CONF
 #include <ConfigParsingUtils.h>
@@ -70,7 +72,7 @@
 {
     AudioParameter param(device_address);
     const String8 key(state == AUDIO_POLICY_DEVICE_STATE_AVAILABLE ?
-                AUDIO_PARAMETER_DEVICE_CONNECT : AUDIO_PARAMETER_DEVICE_DISCONNECT);
+                AudioParameter::keyStreamConnect : AudioParameter::keyStreamDisconnect);
     param.addInt(key, device);
     mpClientInterface->setParameters(AUDIO_IO_HANDLE_NONE, param.toString());
 }
@@ -492,15 +494,17 @@
         // FIXME: would be better to refine to only inputs whose profile connects to the
         // call TX device but this information is not in the audio patch and logic here must be
         // symmetric to the one in startInput()
-        audio_io_handle_t activeInput = mInputs.getActiveInput();
-        if (activeInput != 0) {
-            sp<AudioInputDescriptor> activeDesc = mInputs.valueFor(activeInput);
-            if (activeDesc->getModuleHandle() == txSourceDeviceDesc->getModuleHandle()) {
-                //FIXME: consider all active sessions
-                AudioSessionCollection activeSessions = activeDesc->getActiveAudioSessions();
-                audio_session_t activeSession = activeSessions.keyAt(0);
-                stopInput(activeInput, activeSession);
-                releaseInput(activeInput, activeSession);
+        Vector<sp <AudioInputDescriptor> > activeInputs = mInputs.getActiveInputs();
+        for (size_t i = 0; i < activeInputs.size(); i++) {
+            sp<AudioInputDescriptor> activeDesc = activeInputs[i];
+            if (activeDesc->hasSameHwModuleAs(txSourceDeviceDesc)) {
+                AudioSessionCollection activeSessions =
+                        activeDesc->getAudioSessions(true /*activeOnly*/);
+                for (size_t j = 0; j < activeSessions.size(); j++) {
+                    audio_session_t activeSession = activeSessions.keyAt(j);
+                    stopInput(activeDesc->mIoHandle, activeSession);
+                    releaseInput(activeDesc->mIoHandle, activeSession);
+                }
             }
         }
 
@@ -671,15 +675,16 @@
         }
     }
 
-    audio_io_handle_t activeInput = mInputs.getActiveInput();
-    if (activeInput != 0) {
-        sp<AudioInputDescriptor> activeDesc = mInputs.valueFor(activeInput);
-        audio_devices_t newDevice = getNewInputDevice(activeInput);
+    Vector<sp <AudioInputDescriptor> > activeInputs = mInputs.getActiveInputs();
+    for (size_t i = 0; i < activeInputs.size(); i++) {
+        sp<AudioInputDescriptor> activeDesc = activeInputs[i];
+        audio_devices_t newDevice = getNewInputDevice(activeDesc);
         // Force new input selection if the new device can not be reached via current input
-        if (activeDesc->mProfile->getSupportedDevices().types() & (newDevice & ~AUDIO_DEVICE_BIT_IN)) {
-            setInputDevice(activeInput, newDevice);
+        if (activeDesc->mProfile->getSupportedDevices().types() &
+                (newDevice & ~AUDIO_DEVICE_BIT_IN)) {
+            setInputDevice(activeDesc->mIoHandle, newDevice);
         } else {
-            closeInput(activeInput);
+            closeInput(activeDesc->mIoHandle);
         }
     }
 }
@@ -749,7 +754,7 @@
     ALOGV("getOutput() device %d, stream %d, samplingRate %d, format %x, channelMask %x, flags %x",
           device, stream, samplingRate, format, channelMask, flags);
 
-    return getOutputForDevice(device, AUDIO_SESSION_ALLOCATE,
+    return getOutputForDevice(device, AUDIO_SESSION_ALLOCATE, uid_t{0} /*Invalid uid*/,
                               stream, samplingRate,format, channelMask,
                               flags, offloadInfo);
 }
@@ -759,12 +764,10 @@
                                               audio_session_t session,
                                               audio_stream_type_t *stream,
                                               uid_t uid,
-                                              uint32_t samplingRate,
-                                              audio_format_t format,
-                                              audio_channel_mask_t channelMask,
+                                              const audio_config_t *config,
                                               audio_output_flags_t flags,
                                               audio_port_handle_t selectedDeviceId,
-                                              const audio_offload_info_t *offloadInfo)
+                                              audio_port_handle_t *portId)
 {
     audio_attributes_t attributes;
     if (attr != NULL) {
@@ -782,10 +785,16 @@
         }
         stream_type_to_audio_attributes(*stream, &attributes);
     }
+
+    // TODO: check for existing client for this port ID
+    if (*portId == AUDIO_PORT_HANDLE_NONE) {
+        *portId = AudioPort::getNextUniqueId();
+    }
+
     sp<SwAudioOutputDescriptor> desc;
     if (mPolicyMixes.getOutputForAttr(attributes, uid, desc) == NO_ERROR) {
         ALOG_ASSERT(desc != 0, "Invalid desc returned by getOutputForAttr");
-        if (!audio_has_proportional_frames(format)) {
+        if (!audio_has_proportional_frames(config->format)) {
             return BAD_VALUE;
         }
         *stream = streamTypefromAttributesInt(&attributes);
@@ -823,11 +832,11 @@
     }
 
     ALOGV("getOutputForAttr() device 0x%x, samplingRate %d, format %x, channelMask %x, flags %x",
-          device, samplingRate, format, channelMask, flags);
+          device, config->sample_rate, config->format, config->channel_mask, flags);
 
-    *output = getOutputForDevice(device, session, *stream,
-                                 samplingRate, format, channelMask,
-                                 flags, offloadInfo);
+    *output = getOutputForDevice(device, session, uid, *stream,
+                                 config->sample_rate, config->format, config->channel_mask,
+                                 flags, &config->offload_info);
     if (*output == AUDIO_IO_HANDLE_NONE) {
         mOutputRoutes.removeRoute(session);
         return INVALID_OPERATION;
@@ -839,6 +848,7 @@
 audio_io_handle_t AudioPolicyManager::getOutputForDevice(
         audio_devices_t device,
         audio_session_t session __unused,
+        uid_t clientUid,
         audio_stream_type_t stream,
         uint32_t samplingRate,
         audio_format_t format,
@@ -947,13 +957,21 @@
             sp<SwAudioOutputDescriptor> desc = mOutputs.valueAt(i);
             if (!desc->isDuplicated() && (profile == desc->mProfile)) {
                 outputDesc = desc;
-                // reuse direct output if currently open and configured with same parameters
+                // reuse direct output if currently open by the same client
+                // and configured with same parameters
                 if ((samplingRate == outputDesc->mSamplingRate) &&
-                        audio_formats_match(format, outputDesc->mFormat) &&
-                        (channelMask == outputDesc->mChannelMask)) {
-                    outputDesc->mDirectOpenCount++;
-                    ALOGV("getOutput() reusing direct output %d", mOutputs.keyAt(i));
-                    return mOutputs.keyAt(i);
+                    audio_formats_match(format, outputDesc->mFormat) &&
+                    (channelMask == outputDesc->mChannelMask)) {
+                  if (clientUid == outputDesc->mDirectClientUid) {
+                      outputDesc->mDirectOpenCount++;
+                      ALOGV("getOutput() reusing direct output %d", mOutputs.keyAt(i));
+                      return mOutputs.keyAt(i);
+                  } else {
+                      ALOGV("getOutput() do not reuse direct output because current client (%ld) "
+                            "is not the same as requesting client (%ld)",
+                            (long)outputDesc->mDirectClientUid, (long)clientUid);
+                      goto non_direct_output;
+                  }
                 }
             }
         }
@@ -1021,6 +1039,7 @@
         outputDesc->mRefCount[stream] = 0;
         outputDesc->mStopTime[stream] = 0;
         outputDesc->mDirectOpenCount = 1;
+        outputDesc->mDirectClientUid = clientUid;
 
         audio_io_handle_t srcOutput = getOutputForEffect();
         addOutput(output, outputDesc);
@@ -1452,19 +1471,19 @@
                                              audio_io_handle_t *input,
                                              audio_session_t session,
                                              uid_t uid,
-                                             uint32_t samplingRate,
-                                             audio_format_t format,
-                                             audio_channel_mask_t channelMask,
+                                             const audio_config_base_t *config,
                                              audio_input_flags_t flags,
                                              audio_port_handle_t selectedDeviceId,
-                                             input_type_t *inputType)
+                                             input_type_t *inputType,
+                                             audio_port_handle_t *portId)
 {
     ALOGV("getInputForAttr() source %d, samplingRate %d, format %d, channelMask %x,"
             "session %d, flags %#x",
-          attr->source, samplingRate, format, channelMask, session, flags);
+          attr->source, config->sample_rate, config->format, config->channel_mask, session, flags);
 
     *input = AUDIO_IO_HANDLE_NONE;
     *inputType = API_INPUT_INVALID;
+
     audio_devices_t device;
     // handle legacy remote submix case where the address was not always specified
     String8 address = String8("");
@@ -1477,6 +1496,11 @@
     }
     halInputSource = inputSource;
 
+    // TODO: check for existing client for this port ID
+    if (*portId == AUDIO_PORT_HANDLE_NONE) {
+        *portId = AudioPort::getNextUniqueId();
+    }
+
     // Explicit routing?
     sp<DeviceDescriptor> deviceDesc;
     for (size_t i = 0; i < mAvailableInputDevices.size(); i++) {
@@ -1526,12 +1550,13 @@
     }
 
     *input = getInputForDevice(device, address, session, uid, inputSource,
-                               samplingRate, format, channelMask, flags,
+                               config->sample_rate, config->format, config->channel_mask, flags,
                                policyMix);
     if (*input == AUDIO_IO_HANDLE_NONE) {
         mInputRoutes.removeRoute(session);
         return INVALID_OPERATION;
     }
+
     ALOGV("getInputForAttr() returns input type = %d", *inputType);
     return NO_ERROR;
 }
@@ -1608,14 +1633,22 @@
                                                               isSoundTrigger,
                                                               policyMix, mpClientInterface);
 
-// TODO enable input reuse
-#if 0
     // reuse an open input if possible
+    sp<AudioInputDescriptor> reusedInputDesc;
     for (size_t i = 0; i < mInputs.size(); i++) {
         sp<AudioInputDescriptor> desc = mInputs.valueAt(i);
-        // reuse input if it shares the same profile and same sound trigger attribute
-        if (profile == desc->mProfile &&
-            isSoundTrigger == desc->isSoundTrigger()) {
+        // reuse input if:
+        // - it shares the same profile
+        //      AND
+        // - it is not a reroute submix input
+        //      AND
+        // - it is: not used for sound trigger
+        //                OR
+        //          used for sound trigger and all clients use the same session ID
+        //
+        if ((profile == desc->mProfile) &&
+            (isSoundTrigger == desc->isSoundTrigger()) &&
+            !is_virtual_input_device(device)) {
 
             sp<AudioSession> as = desc->getAudioSession(session);
             if (as != 0) {
@@ -1625,16 +1658,43 @@
                 } else {
                     ALOGW("getInputForDevice() record with different attributes"
                           " exists for session %d", session);
-                    return input;
+                    continue;
                 }
+            } else if (isSoundTrigger) {
+                continue;
+            }
+
+            // Reuse the already opened input stream on this profile if:
+            // - the new capture source is background OR
+            // - the path requested configurations match OR
+            // - the new source priority is less than the highest source priority on this input
+            // If the input stream cannot be reused, close it before opening a new stream
+            // on the same profile for the new client so that the requested path configuration
+            // can be selected.
+            if (!isConcurrentSource(inputSource) &&
+                    ((desc->mSamplingRate != samplingRate ||
+                    desc->mChannelMask != channelMask ||
+                    !audio_formats_match(desc->mFormat, format)) &&
+                    (source_priority(desc->getHighestPrioritySource(false /*activeOnly*/)) <
+                     source_priority(inputSource)))) {
+                reusedInputDesc = desc;
+                continue;
             } else {
                 desc->addAudioSession(session, audioSession);
+                ALOGV("%s: reusing input %d", __FUNCTION__, mInputs.keyAt(i));
+                return mInputs.keyAt(i);
             }
-            ALOGV("getInputForDevice() reusing input %d", mInputs.keyAt(i));
-            return mInputs.keyAt(i);
         }
     }
-#endif
+
+    if (reusedInputDesc != 0) {
+        AudioSessionCollection sessions = reusedInputDesc->getAudioSessions(false /*activeOnly*/);
+        for (size_t j = 0; j < sessions.size(); j++) {
+            audio_session_t currentSession = sessions.keyAt(j);
+            stopInput(reusedInputDesc->mIoHandle, currentSession);
+            releaseInput(reusedInputDesc->mIoHandle, currentSession);
+        }
+    }
 
     audio_config_t config = AUDIO_CONFIG_INITIALIZER;
     config.sample_rate = profileSamplingRate;
@@ -1677,10 +1737,56 @@
     return input;
 }
 
+//static
+bool AudioPolicyManager::isConcurrentSource(audio_source_t source)
+{
+    return (source == AUDIO_SOURCE_HOTWORD) ||
+            (source == AUDIO_SOURCE_VOICE_RECOGNITION) ||
+            (source == AUDIO_SOURCE_FM_TUNER);
+}
+
+bool AudioPolicyManager::isConcurentCaptureAllowed(const sp<AudioInputDescriptor>& inputDesc,
+        const sp<AudioSession>& audioSession)
+{
+    // Do not allow capture if an active voice call is using a software patch and
+    // the call TX source device is on the same HW module.
+    // FIXME: would be better to refine to only inputs whose profile connects to the
+    // call TX device but this information is not in the audio patch
+    if (mCallTxPatch != 0 &&
+        inputDesc->getModuleHandle() == mCallTxPatch->mPatch.sources[0].ext.device.hw_module) {
+        return false;
+    }
+
+    // starting concurrent capture is enabled if:
+    // 1) capturing for re-routing
+    // 2) capturing for HOTWORD source
+    // 3) capturing for FM TUNER source
+    // 3) All other active captures are either for re-routing or HOTWORD
+
+    if (is_virtual_input_device(inputDesc->mDevice) ||
+            isConcurrentSource(audioSession->inputSource())) {
+        return true;
+    }
+
+    Vector< sp<AudioInputDescriptor> > activeInputs = mInputs.getActiveInputs();
+    for (size_t i = 0; i <  activeInputs.size(); i++) {
+        sp<AudioInputDescriptor> activeInput = activeInputs[i];
+        if (!isConcurrentSource(activeInput->inputSource(true)) &&
+                !is_virtual_input_device(activeInput->mDevice)) {
+            return false;
+        }
+    }
+
+    return true;
+}
+
+
 status_t AudioPolicyManager::startInput(audio_io_handle_t input,
-                                        audio_session_t session)
+                                        audio_session_t session,
+                                        concurrency_type__mask_t *concurrency)
 {
     ALOGV("startInput() input %d", input);
+    *concurrency = API_INPUT_CONCURRENCY_NONE;
     ssize_t index = mInputs.indexOfKey(input);
     if (index < 0) {
         ALOGW("startInput() unknown input %d", input);
@@ -1694,86 +1800,66 @@
         return BAD_VALUE;
     }
 
-    // virtual input devices are compatible with other input devices
-    if (!is_virtual_input_device(inputDesc->mDevice)) {
-
-        // for a non-virtual input device, check if there is another (non-virtual) active input
-        audio_io_handle_t activeInput = mInputs.getActiveInput();
-        if (activeInput != 0 && activeInput != input) {
-
-            // If the already active input uses AUDIO_SOURCE_HOTWORD then it is closed,
-            // otherwise the active input continues and the new input cannot be started.
-            sp<AudioInputDescriptor> activeDesc = mInputs.valueFor(activeInput);
-            if ((activeDesc->inputSource() == AUDIO_SOURCE_HOTWORD) &&
-                    !activeDesc->hasPreemptedSession(session)) {
-                ALOGW("startInput(%d) preempting low-priority input %d", input, activeInput);
-                //FIXME: consider all active sessions
-                AudioSessionCollection activeSessions = activeDesc->getActiveAudioSessions();
-                audio_session_t activeSession = activeSessions.keyAt(0);
-                SortedVector<audio_session_t> sessions =
-                                           activeDesc->getPreemptedSessions();
-                sessions.add(activeSession);
-                inputDesc->setPreemptedSessions(sessions);
-                stopInput(activeInput, activeSession);
-                releaseInput(activeInput, activeSession);
-            } else {
-                ALOGE("startInput(%d) failed: other input %d already started", input, activeInput);
-                return INVALID_OPERATION;
-            }
-        }
-
-        // Do not allow capture if an active voice call is using a software patch and
-        // the call TX source device is on the same HW module.
-        // FIXME: would be better to refine to only inputs whose profile connects to the
-        // call TX device but this information is not in the audio patch
-        if (mCallTxPatch != 0 &&
-            inputDesc->getModuleHandle() == mCallTxPatch->mPatch.sources[0].ext.device.hw_module) {
-            return INVALID_OPERATION;
-        }
+    if (!isConcurentCaptureAllowed(inputDesc, audioSession)) {
+        ALOGW("startInput(%d) failed: other input already started", input);
+        return INVALID_OPERATION;
     }
 
+    if (isInCall()) {
+        *concurrency |= API_INPUT_CONCURRENCY_CALL;
+    }
+    if (mInputs.activeInputsCountOnDevices() != 0) {
+        *concurrency |= API_INPUT_CONCURRENCY_CAPTURE;
+    }
+
+    // increment activity count before calling getNewInputDevice() below as only active sessions
+    // are considered for device selection
+    audioSession->changeActiveCount(1);
+
     // Routing?
     mInputRoutes.incRouteActivity(session);
 
-    if (!inputDesc->isActive() || mInputRoutes.hasRouteChanged(session)) {
-        // if input maps to a dynamic policy with an activity listener, notify of state change
-        if ((inputDesc->mPolicyMix != NULL)
-                && ((inputDesc->mPolicyMix->mCbFlags & AudioMix::kCbFlagNotifyActivity) != 0)) {
-            mpClientInterface->onDynamicPolicyMixStateUpdate(inputDesc->mPolicyMix->mDeviceAddress,
-                    MIX_STATE_MIXING);
-        }
-
+    if (audioSession->activeCount() == 1 || mInputRoutes.hasRouteChanged(session)) {
         // indicate active capture to sound trigger service if starting capture from a mic on
         // primary HW module
-        audio_devices_t device = getNewInputDevice(input);
-        audio_devices_t primaryInputDevices = availablePrimaryInputDevices();
-        if (((device & primaryInputDevices & ~AUDIO_DEVICE_BIT_IN) != 0) &&
-                mInputs.activeInputsCountOnDevices(primaryInputDevices) == 0) {
-            SoundTrigger::setCaptureState(true);
-        }
+        audio_devices_t device = getNewInputDevice(inputDesc);
         setInputDevice(input, device, true /* force */);
 
-        // automatically enable the remote submix output when input is started if not
-        // used by a policy mix of type MIX_TYPE_RECORDERS
-        // For remote submix (a virtual device), we open only one input per capture request.
-        if (audio_is_remote_submix_device(inputDesc->mDevice)) {
-            String8 address = String8("");
-            if (inputDesc->mPolicyMix == NULL) {
-                address = String8("0");
-            } else if (inputDesc->mPolicyMix->mMixType == MIX_TYPE_PLAYERS) {
-                address = inputDesc->mPolicyMix->mDeviceAddress;
+        if (inputDesc->getAudioSessionCount(true/*activeOnly*/) == 1) {
+            // if input maps to a dynamic policy with an activity listener, notify of state change
+            if ((inputDesc->mPolicyMix != NULL)
+                    && ((inputDesc->mPolicyMix->mCbFlags & AudioMix::kCbFlagNotifyActivity) != 0)) {
+                mpClientInterface->onDynamicPolicyMixStateUpdate(inputDesc->mPolicyMix->mDeviceAddress,
+                        MIX_STATE_MIXING);
             }
-            if (address != "") {
-                setDeviceConnectionStateInt(AUDIO_DEVICE_OUT_REMOTE_SUBMIX,
-                        AUDIO_POLICY_DEVICE_STATE_AVAILABLE,
-                        address, "remote-submix");
+
+            audio_devices_t primaryInputDevices = availablePrimaryInputDevices();
+            if (((device & primaryInputDevices & ~AUDIO_DEVICE_BIT_IN) != 0) &&
+                    mInputs.activeInputsCountOnDevices(primaryInputDevices) == 1) {
+                SoundTrigger::setCaptureState(true);
+            }
+
+            // automatically enable the remote submix output when input is started if not
+            // used by a policy mix of type MIX_TYPE_RECORDERS
+            // For remote submix (a virtual device), we open only one input per capture request.
+            if (audio_is_remote_submix_device(inputDesc->mDevice)) {
+                String8 address = String8("");
+                if (inputDesc->mPolicyMix == NULL) {
+                    address = String8("0");
+                } else if (inputDesc->mPolicyMix->mMixType == MIX_TYPE_PLAYERS) {
+                    address = inputDesc->mPolicyMix->mDeviceAddress;
+                }
+                if (address != "") {
+                    setDeviceConnectionStateInt(AUDIO_DEVICE_OUT_REMOTE_SUBMIX,
+                            AUDIO_POLICY_DEVICE_STATE_AVAILABLE,
+                            address, "remote-submix");
+                }
             }
         }
     }
 
     ALOGV("AudioPolicyManager::startInput() input source = %d", audioSession->inputSource());
 
-    audioSession->changeActiveCount(1);
     return NO_ERROR;
 }
 
@@ -1804,41 +1890,46 @@
     // Routing?
     mInputRoutes.decRouteActivity(session);
 
-    if (!inputDesc->isActive()) {
-        // if input maps to a dynamic policy with an activity listener, notify of state change
-        if ((inputDesc->mPolicyMix != NULL)
-                && ((inputDesc->mPolicyMix->mCbFlags & AudioMix::kCbFlagNotifyActivity) != 0)) {
-            mpClientInterface->onDynamicPolicyMixStateUpdate(inputDesc->mPolicyMix->mDeviceAddress,
-                    MIX_STATE_IDLE);
-        }
+    if (audioSession->activeCount() == 0) {
 
-        // automatically disable the remote submix output when input is stopped if not
-        // used by a policy mix of type MIX_TYPE_RECORDERS
-        if (audio_is_remote_submix_device(inputDesc->mDevice)) {
-            String8 address = String8("");
-            if (inputDesc->mPolicyMix == NULL) {
-                address = String8("0");
-            } else if (inputDesc->mPolicyMix->mMixType == MIX_TYPE_PLAYERS) {
-                address = inputDesc->mPolicyMix->mDeviceAddress;
+        if (inputDesc->isActive()) {
+            setInputDevice(input, getNewInputDevice(inputDesc), false /* force */);
+        } else {
+            // if input maps to a dynamic policy with an activity listener, notify of state change
+            if ((inputDesc->mPolicyMix != NULL)
+                    && ((inputDesc->mPolicyMix->mCbFlags & AudioMix::kCbFlagNotifyActivity) != 0)) {
+                mpClientInterface->onDynamicPolicyMixStateUpdate(inputDesc->mPolicyMix->mDeviceAddress,
+                        MIX_STATE_IDLE);
             }
-            if (address != "") {
-                setDeviceConnectionStateInt(AUDIO_DEVICE_OUT_REMOTE_SUBMIX,
-                                         AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE,
-                                         address, "remote-submix");
+
+            // automatically disable the remote submix output when input is stopped if not
+            // used by a policy mix of type MIX_TYPE_RECORDERS
+            if (audio_is_remote_submix_device(inputDesc->mDevice)) {
+                String8 address = String8("");
+                if (inputDesc->mPolicyMix == NULL) {
+                    address = String8("0");
+                } else if (inputDesc->mPolicyMix->mMixType == MIX_TYPE_PLAYERS) {
+                    address = inputDesc->mPolicyMix->mDeviceAddress;
+                }
+                if (address != "") {
+                    setDeviceConnectionStateInt(AUDIO_DEVICE_OUT_REMOTE_SUBMIX,
+                                             AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE,
+                                             address, "remote-submix");
+                }
             }
-        }
 
-        audio_devices_t device = inputDesc->mDevice;
-        resetInputDevice(input);
+            audio_devices_t device = inputDesc->mDevice;
+            resetInputDevice(input);
 
-        // indicate inactive capture to sound trigger service if stopping capture from a mic on
-        // primary HW module
-        audio_devices_t primaryInputDevices = availablePrimaryInputDevices();
-        if (((device & primaryInputDevices & ~AUDIO_DEVICE_BIT_IN) != 0) &&
-                mInputs.activeInputsCountOnDevices(primaryInputDevices) == 0) {
-            SoundTrigger::setCaptureState(false);
+            // indicate inactive capture to sound trigger service if stopping capture from a mic on
+            // primary HW module
+            audio_devices_t primaryInputDevices = availablePrimaryInputDevices();
+            if (((device & primaryInputDevices & ~AUDIO_DEVICE_BIT_IN) != 0) &&
+                    mInputs.activeInputsCountOnDevices(primaryInputDevices) == 0) {
+                SoundTrigger::setCaptureState(false);
+            }
+            inputDesc->clearPreemptedSessions();
         }
-        inputDesc->clearPreemptedSessions();
     }
     return NO_ERROR;
 }
@@ -1861,7 +1952,7 @@
     ALOG_ASSERT(inputDesc != 0);
 
     sp<AudioSession> audioSession = inputDesc->getAudioSession(session);
-    if (index < 0) {
+    if (audioSession == 0) {
         ALOGW("releaseInput() unknown session %d on input %d", session, input);
         return;
     }
@@ -2320,7 +2411,9 @@
     snprintf(buffer, SIZE, " Primary Output: %d\n",
              hasPrimaryOutput() ? mPrimaryOutput->mIoHandle : AUDIO_IO_HANDLE_NONE);
     result.append(buffer);
-    snprintf(buffer, SIZE, " Phone state: %d\n", mEngine->getPhoneState());
+    std::string stateLiteral;
+    AudioModeConverter::toString(mEngine->getPhoneState(), stateLiteral);
+    snprintf(buffer, SIZE, " Phone state: %s\n", stateLiteral.c_str());
     result.append(buffer);
     snprintf(buffer, SIZE, " Force use for communications %d\n",
              mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_COMMUNICATION));
@@ -2354,6 +2447,7 @@
     mVolumeCurves->dump(fd);
     mEffects.dump(fd);
     mAudioPatches.dump(fd);
+    mPolicyMixes.dump(fd);
 
     return NO_ERROR;
 }
@@ -2709,8 +2803,8 @@
                 // create a software bridge in PatchPanel if:
                 // - source and sink devices are on differnt HW modules OR
                 // - audio HAL version is < 3.0
-                if ((srcDeviceDesc->getModuleHandle() != sinkDeviceDesc->getModuleHandle()) ||
-                        (srcDeviceDesc->mModule->getHalVersion() < AUDIO_DEVICE_API_VERSION_3_0)) {
+                if (!srcDeviceDesc->hasSameHwModuleAs(sinkDeviceDesc) ||
+                        (srcDeviceDesc->mModule->getHalVersionMajor() < 3)) {
                     // support only one sink device for now to simplify output selection logic
                     if (patch->num_sinks > 1) {
                         return INVALID_OPERATION;
@@ -2809,7 +2903,7 @@
                 return BAD_VALUE;
             }
             setInputDevice(inputDesc->mIoHandle,
-                           getNewInputDevice(inputDesc->mIoHandle),
+                           getNewInputDevice(inputDesc),
                            true,
                            NULL);
         } else if (patch->sinks[0].type == AUDIO_PORT_TYPE_DEVICE) {
@@ -3014,7 +3108,7 @@
 
 status_t AudioPolicyManager::startAudioSource(const struct audio_port_config *source,
                                   const audio_attributes_t *attributes,
-                                  audio_io_handle_t *handle,
+                                  audio_patch_handle_t *handle,
                                   uid_t uid)
 {
     ALOGV("%s source %p attributes %p handle %p", __FUNCTION__, source, attributes, handle);
@@ -3022,7 +3116,7 @@
         return BAD_VALUE;
     }
 
-    *handle = AUDIO_IO_HANDLE_NONE;
+    *handle = AUDIO_PATCH_HANDLE_NONE;
 
     if (source->role != AUDIO_PORT_ROLE_SOURCE ||
             source->type != AUDIO_PORT_TYPE_DEVICE) {
@@ -3072,7 +3166,7 @@
 
     if (srcDeviceDesc->getAudioPort()->mModule->getHandle() ==
             sinkDeviceDesc->getAudioPort()->mModule->getHandle() &&
-            srcDeviceDesc->getAudioPort()->mModule->getHalVersion() >= AUDIO_DEVICE_API_VERSION_3_0 &&
+            srcDeviceDesc->getAudioPort()->mModule->getHalVersionMajor() >= 3 &&
             srcDeviceDesc->getAudioPort()->mGains.size() > 0) {
         ALOGV("%s AUDIO_DEVICE_API_VERSION_3_0", __FUNCTION__);
         //   create patch between src device and output device
@@ -3129,7 +3223,7 @@
     return NO_ERROR;
 }
 
-status_t AudioPolicyManager::stopAudioSource(audio_io_handle_t handle __unused)
+status_t AudioPolicyManager::stopAudioSource(audio_patch_handle_t handle __unused)
 {
     sp<AudioSourceDescriptor> sourceDesc = mAudioSources.valueFor(handle);
     ALOGV("%s handle %d", __FUNCTION__, handle);
@@ -3235,6 +3329,33 @@
     return android_atomic_inc(&mAudioPortGeneration);
 }
 
+#ifdef USE_XML_AUDIO_POLICY_CONF
+// Treblized audio policy xml config will be located in /odm/etc or /vendor/etc.
+static const char *kConfigLocationList[] =
+        {"/odm/etc", "/vendor/etc", "/system/etc"};
+static const int kConfigLocationListSize =
+        (sizeof(kConfigLocationList) / sizeof(kConfigLocationList[0]));
+
+static status_t deserializeAudioPolicyXmlConfig(AudioPolicyConfig &config) {
+    char audioPolicyXmlConfigFile[AUDIO_POLICY_XML_CONFIG_FILE_PATH_MAX_LENGTH];
+    status_t ret;
+
+    for (int i = 0; i < kConfigLocationListSize; i++) {
+        PolicySerializer serializer;
+        snprintf(audioPolicyXmlConfigFile,
+                 sizeof(audioPolicyXmlConfigFile),
+                 "%s/%s",
+                 kConfigLocationList[i],
+                 AUDIO_POLICY_XML_CONFIG_FILE_NAME);
+        ret = serializer.deserialize(audioPolicyXmlConfigFile, config);
+        if (ret == NO_ERROR) {
+            break;
+        }
+    }
+    return ret;
+}
+#endif
+
 AudioPolicyManager::AudioPolicyManager(AudioPolicyClientInterface *clientInterface)
     :
 #ifdef AUDIO_POLICY_TEST
@@ -3262,8 +3383,7 @@
     AudioPolicyConfig config(mHwModules, mAvailableOutputDevices, mAvailableInputDevices,
                              mDefaultOutputDevice, speakerDrcEnabled,
                              static_cast<VolumeCurvesCollection *>(mVolumeCurves));
-    PolicySerializer serializer;
-    if (serializer.deserialize(AUDIO_POLICY_XML_CONFIG_FILE, config) != NO_ERROR) {
+    if (deserializeAudioPolicyXmlConfig(config) != NO_ERROR) {
 #else
     mVolumeCurves = new StreamDescriptorCollection();
     AudioPolicyConfig config(mHwModules, mAvailableOutputDevices, mAvailableInputDevices,
@@ -3583,7 +3703,7 @@
                         mTestFormat = format;
                     } else if (mTestOutputs[mCurOutput] != 0) {
                         AudioParameter outputParam = AudioParameter();
-                        outputParam.addInt(String8("format"), format);
+                        outputParam.addInt(String8(AudioParameter::keyStreamSupportedFormats), format);
                         mpClientInterface->setParameters(mTestOutputs[mCurOutput], outputParam.toString());
                     }
                 }
@@ -3602,7 +3722,7 @@
                         mTestChannels = channels;
                     } else if (mTestOutputs[mCurOutput] != 0) {
                         AudioParameter outputParam = AudioParameter();
-                        outputParam.addInt(String8("channels"), channels);
+                        outputParam.addInt(String8(AudioParameter::keyStreamSupportedChannels), channels);
                         mpClientInterface->setParameters(mTestOutputs[mCurOutput], outputParam.toString());
                     }
                 }
@@ -3615,7 +3735,7 @@
                         mTestSamplingRate = samplingRate;
                     } else if (mTestOutputs[mCurOutput] != 0) {
                         AudioParameter outputParam = AudioParameter();
-                        outputParam.addInt(String8("sampling_rate"), samplingRate);
+                        outputParam.addInt(String8(AudioParameter::keyStreamSupportedSamplingRates), samplingRate);
                         mpClientInterface->setParameters(mTestOutputs[mCurOutput], outputParam.toString());
                     }
                 }
@@ -4339,33 +4459,36 @@
             ((mAvailableInputDevices.types() & AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET &
                     ~AUDIO_DEVICE_BIT_IN) != 0) ||
             ((mAvailableOutputDevices.types() & AUDIO_DEVICE_OUT_ALL_SCO) != 0);
-    // suspend A2DP output if:
-    //      (NOT already suspended) &&
-    //      ((SCO device is connected &&
-    //       (forced usage for communication || for record is SCO))) ||
-    //      (phone state is ringing || in call)
+
+    // if suspended, restore A2DP output if:
+    //      ((SCO device is NOT connected) ||
+    //       ((forced usage communication is NOT SCO) && (forced usage for record is NOT SCO) &&
+    //        (phone state is NOT in call) && (phone state is NOT ringing)))
     //
-    // restore A2DP output if:
-    //      (Already suspended) &&
-    //      ((SCO device is NOT connected ||
-    //       (forced usage NOT for communication && NOT for record is SCO))) &&
-    //      (phone state is NOT ringing && NOT in call)
+    // if not suspended, suspend A2DP output if:
+    //      (SCO device is connected) &&
+    //       ((forced usage for communication is SCO) || (forced usage for record is SCO) ||
+    //       ((phone state is in call) || (phone state is ringing)))
     //
     if (mA2dpSuspended) {
-        if ((!isScoConnected ||
-             ((mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_COMMUNICATION) != AUDIO_POLICY_FORCE_BT_SCO) &&
-              (mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_RECORD) != AUDIO_POLICY_FORCE_BT_SCO))) &&
-             ((mEngine->getPhoneState() != AUDIO_MODE_IN_CALL) &&
+        if (!isScoConnected ||
+             ((mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_COMMUNICATION) !=
+                     AUDIO_POLICY_FORCE_BT_SCO) &&
+              (mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_RECORD) !=
+                      AUDIO_POLICY_FORCE_BT_SCO) &&
+              (mEngine->getPhoneState() != AUDIO_MODE_IN_CALL) &&
               (mEngine->getPhoneState() != AUDIO_MODE_RINGTONE))) {
 
             mpClientInterface->restoreOutput(a2dpOutput);
             mA2dpSuspended = false;
         }
     } else {
-        if ((isScoConnected &&
-             ((mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_COMMUNICATION) == AUDIO_POLICY_FORCE_BT_SCO) ||
-              (mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_RECORD) == AUDIO_POLICY_FORCE_BT_SCO))) ||
-             ((mEngine->getPhoneState() == AUDIO_MODE_IN_CALL) ||
+        if (isScoConnected &&
+             ((mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_COMMUNICATION) ==
+                     AUDIO_POLICY_FORCE_BT_SCO) ||
+              (mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_RECORD) ==
+                      AUDIO_POLICY_FORCE_BT_SCO) ||
+              (mEngine->getPhoneState() == AUDIO_MODE_IN_CALL) ||
               (mEngine->getPhoneState() == AUDIO_MODE_RINGTONE))) {
 
             mpClientInterface->suspendOutput(a2dpOutput);
@@ -4436,9 +4559,9 @@
     return device;
 }
 
-audio_devices_t AudioPolicyManager::getNewInputDevice(audio_io_handle_t input)
+audio_devices_t AudioPolicyManager::getNewInputDevice(const sp<AudioInputDescriptor>& inputDesc)
 {
-    sp<AudioInputDescriptor> inputDesc = mInputs.valueFor(input);
+    audio_devices_t device = AUDIO_DEVICE_NONE;
 
     ssize_t index = mAudioPatches.indexOfKey(inputDesc->getPatchHandle());
     if (index >= 0) {
@@ -4450,16 +4573,19 @@
         }
     }
 
-    audio_devices_t device = getDeviceAndMixForInputSource(inputDesc->inputSource());
+    audio_source_t source = inputDesc->getHighestPrioritySource(true /*activeOnly*/);
+    if (isInCall()) {
+        device = getDeviceAndMixForInputSource(AUDIO_SOURCE_VOICE_COMMUNICATION);
+    } else if (source != AUDIO_SOURCE_DEFAULT) {
+        device = getDeviceAndMixForInputSource(source);
+    }
 
     return device;
 }
 
 bool AudioPolicyManager::streamsMatchForvolume(audio_stream_type_t stream1,
                                                audio_stream_type_t stream2) {
-    return ((stream1 == stream2) ||
-            ((stream1 == AUDIO_STREAM_ACCESSIBILITY) && (stream2 == AUDIO_STREAM_MUSIC)) ||
-            ((stream1 == AUDIO_STREAM_MUSIC) && (stream2 == AUDIO_STREAM_ACCESSIBILITY)));
+    return (stream1 == stream2);
 }
 
 uint32_t AudioPolicyManager::getStrategyForStream(audio_stream_type_t stream) {
@@ -5268,6 +5394,7 @@
     switch (attr->usage) {
     case AUDIO_USAGE_MEDIA:
     case AUDIO_USAGE_GAME:
+    case AUDIO_USAGE_ASSISTANT:
     case AUDIO_USAGE_ASSISTANCE_NAVIGATION_GUIDANCE:
         return AUDIO_STREAM_MUSIC;
     case AUDIO_USAGE_ASSISTANCE_ACCESSIBILITY:
@@ -5323,6 +5450,7 @@
     case AUDIO_USAGE_ASSISTANCE_SONIFICATION:
     case AUDIO_USAGE_GAME:
     case AUDIO_USAGE_VIRTUAL_SOURCE:
+    case AUDIO_USAGE_ASSISTANT:
         break;
     default:
         return false;
@@ -5525,12 +5653,12 @@
 
     // Format MUST be checked first to update the list of AudioProfile
     if (profiles.hasDynamicFormat()) {
-        reply = mpClientInterface->getParameters(ioHandle,
-                                                 String8(AUDIO_PARAMETER_STREAM_SUP_FORMATS));
+        reply = mpClientInterface->getParameters(
+                ioHandle, String8(AudioParameter::keyStreamSupportedFormats));
         ALOGV("%s: supported formats %s", __FUNCTION__, reply.string());
         AudioParameter repliedParameters(reply);
         if (repliedParameters.get(
-                String8(AUDIO_PARAMETER_STREAM_SUP_FORMATS), reply) != NO_ERROR) {
+                String8(AudioParameter::keyStreamSupportedFormats), reply) != NO_ERROR) {
             ALOGE("%s: failed to retrieve format, bailing out", __FUNCTION__);
             return;
         }
@@ -5547,27 +5675,28 @@
         ChannelsVector channelMasks;
         SampleRateVector samplingRates;
         AudioParameter requestedParameters;
-        requestedParameters.addInt(String8(AUDIO_PARAMETER_STREAM_FORMAT), format);
+        requestedParameters.addInt(String8(AudioParameter::keyFormat), format);
 
         if (profiles.hasDynamicRateFor(format)) {
-            reply = mpClientInterface->getParameters(ioHandle,
-                                                     requestedParameters.toString() + ";" +
-                                                     AUDIO_PARAMETER_STREAM_SUP_SAMPLING_RATES);
+            reply = mpClientInterface->getParameters(
+                    ioHandle,
+                    requestedParameters.toString() + ";" +
+                    AudioParameter::keyStreamSupportedSamplingRates);
             ALOGV("%s: supported sampling rates %s", __FUNCTION__, reply.string());
             AudioParameter repliedParameters(reply);
             if (repliedParameters.get(
-                    String8(AUDIO_PARAMETER_STREAM_SUP_SAMPLING_RATES), reply) == NO_ERROR) {
+                    String8(AudioParameter::keyStreamSupportedSamplingRates), reply) == NO_ERROR) {
                 samplingRates = samplingRatesFromString(reply.string());
             }
         }
         if (profiles.hasDynamicChannelsFor(format)) {
             reply = mpClientInterface->getParameters(ioHandle,
                                                      requestedParameters.toString() + ";" +
-                                                     AUDIO_PARAMETER_STREAM_SUP_CHANNELS);
+                                                     AudioParameter::keyStreamSupportedChannels);
             ALOGV("%s: supported channel masks %s", __FUNCTION__, reply.string());
             AudioParameter repliedParameters(reply);
             if (repliedParameters.get(
-                    String8(AUDIO_PARAMETER_STREAM_SUP_CHANNELS), reply) == NO_ERROR) {
+                    String8(AudioParameter::keyStreamSupportedChannels), reply) == NO_ERROR) {
                 channelMasks = channelMasksFromString(reply.string());
                 if (device == AUDIO_DEVICE_OUT_HDMI) {
                     filterSurroundChannelMasks(&channelMasks);
diff --git a/services/audiopolicy/managerdefault/AudioPolicyManager.h b/services/audiopolicy/managerdefault/AudioPolicyManager.h
index 3cfe508..3dfcde6 100644
--- a/services/audiopolicy/managerdefault/AudioPolicyManager.h
+++ b/services/audiopolicy/managerdefault/AudioPolicyManager.h
@@ -114,12 +114,10 @@
                                           audio_session_t session,
                                           audio_stream_type_t *stream,
                                           uid_t uid,
-                                          uint32_t samplingRate,
-                                          audio_format_t format,
-                                          audio_channel_mask_t channelMask,
+                                          const audio_config_t *config,
                                           audio_output_flags_t flags,
                                           audio_port_handle_t selectedDeviceId,
-                                          const audio_offload_info_t *offloadInfo);
+                                          audio_port_handle_t *portId);
         virtual status_t startOutput(audio_io_handle_t output,
                                      audio_stream_type_t stream,
                                      audio_session_t session);
@@ -133,16 +131,16 @@
                                          audio_io_handle_t *input,
                                          audio_session_t session,
                                          uid_t uid,
-                                         uint32_t samplingRate,
-                                         audio_format_t format,
-                                         audio_channel_mask_t channelMask,
+                                         const audio_config_base_t *config,
                                          audio_input_flags_t flags,
                                          audio_port_handle_t selectedDeviceId,
-                                         input_type_t *inputType);
+                                         input_type_t *inputType,
+                                         audio_port_handle_t *portId);
 
         // indicates to the audio policy manager that the input starts being used.
         virtual status_t startInput(audio_io_handle_t input,
-                                    audio_session_t session);
+                                    audio_session_t session,
+                                    concurrency_type__mask_t *concurrency);
 
         // indicates to the audio policy manager that the input stops being used.
         virtual status_t stopInput(audio_io_handle_t input,
@@ -230,9 +228,9 @@
 
         virtual status_t startAudioSource(const struct audio_port_config *source,
                                           const audio_attributes_t *attributes,
-                                          audio_io_handle_t *handle,
+                                          audio_patch_handle_t *handle,
                                           uid_t uid);
-        virtual status_t stopAudioSource(audio_io_handle_t handle);
+        virtual status_t stopAudioSource(audio_patch_handle_t handle);
 
         virtual status_t setMasterMono(bool mono);
         virtual status_t getMasterMono(bool *mono);
@@ -408,7 +406,7 @@
         void updateDevicesAndOutputs();
 
         // selects the most appropriate device on input for current state
-        audio_devices_t getNewInputDevice(audio_io_handle_t input);
+        audio_devices_t getNewInputDevice(const sp<AudioInputDescriptor>& inputDesc);
 
         virtual uint32_t getMaxEffectsCpuLoad()
         {
@@ -509,6 +507,10 @@
 
         void clearAudioSources(uid_t uid);
 
+        static bool isConcurrentSource(audio_source_t source);
+
+        bool isConcurentCaptureAllowed(const sp<AudioInputDescriptor>& inputDesc,
+                const sp<AudioSession>& audioSession);
 
         static bool streamsMatchForvolume(audio_stream_type_t stream1,
                                           audio_stream_type_t stream2);
@@ -623,6 +625,7 @@
         audio_io_handle_t getOutputForDevice(
                 audio_devices_t device,
                 audio_session_t session,
+                uid_t client,
                 audio_stream_type_t stream,
                 uint32_t samplingRate,
                 audio_format_t format,
@@ -662,7 +665,7 @@
                                                           const char *device_name);
         void updateMono(audio_io_handle_t output) {
             AudioParameter param;
-            param.addInt(String8(AUDIO_PARAMETER_MONO_OUTPUT), (int)mMasterMono);
+            param.addInt(String8(AudioParameter::keyMonoOutput), (int)mMasterMono);
             mpClientInterface->setParameters(output, param.toString());
         }
 };
diff --git a/services/audiopolicy/service/AudioPolicyClientImplLegacy.cpp b/services/audiopolicy/service/AudioPolicyClientImplLegacy.cpp
deleted file mode 100644
index dabffe6..0000000
--- a/services/audiopolicy/service/AudioPolicyClientImplLegacy.cpp
+++ /dev/null
@@ -1,317 +0,0 @@
-/*
- * Copyright (C) 2009 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "AudioPolicyService"
-//#define LOG_NDEBUG 0
-
-#include "Configuration.h"
-#undef __STRICT_ANSI__
-#define __STDINT_LIMITS
-#define __STDC_LIMIT_MACROS
-#include <stdint.h>
-
-#include <sys/time.h>
-#include <binder/IServiceManager.h>
-#include <utils/Log.h>
-#include <cutils/properties.h>
-#include <binder/IPCThreadState.h>
-#include <utils/String16.h>
-#include <utils/threads.h>
-#include "AudioPolicyService.h"
-#include "ServiceUtilities.h"
-#include <hardware_legacy/power.h>
-#include <media/AudioEffect.h>
-#include <media/EffectsFactoryApi.h>
-//#include <media/IAudioFlinger.h>
-
-#include <hardware/hardware.h>
-#include <system/audio.h>
-#include <system/audio_policy.h>
-#include <hardware/audio_policy.h>
-#include <audio_effects/audio_effects_conf.h>
-#include <media/AudioParameter.h>
-
-
-namespace android {
-
-/* implementation of the interface to the policy manager */
-extern "C" {
-
-audio_module_handle_t aps_load_hw_module(void *service __unused,
-                                             const char *name)
-{
-    sp<IAudioFlinger> af = AudioSystem::get_audio_flinger();
-    if (af == 0) {
-        ALOGW("%s: could not get AudioFlinger", __func__);
-        return AUDIO_MODULE_HANDLE_NONE;
-    }
-
-    return af->loadHwModule(name);
-}
-
-static audio_io_handle_t open_output(audio_module_handle_t module,
-                                    audio_devices_t *pDevices,
-                                    uint32_t *pSamplingRate,
-                                    audio_format_t *pFormat,
-                                    audio_channel_mask_t *pChannelMask,
-                                    uint32_t *pLatencyMs,
-                                    audio_output_flags_t flags,
-                                    const audio_offload_info_t *offloadInfo)
-{
-    sp<IAudioFlinger> af = AudioSystem::get_audio_flinger();
-    if (af == 0) {
-        ALOGW("%s: could not get AudioFlinger", __func__);
-        return AUDIO_IO_HANDLE_NONE;
-    }
-
-    if (pSamplingRate == NULL || pFormat == NULL || pChannelMask == NULL ||
-            pDevices == NULL || pLatencyMs == NULL) {
-        return AUDIO_IO_HANDLE_NONE;
-    }
-    audio_config_t config = AUDIO_CONFIG_INITIALIZER;
-    config.sample_rate = *pSamplingRate;
-    config.format = *pFormat;
-    config.channel_mask = *pChannelMask;
-    if (offloadInfo != NULL) {
-        config.offload_info = *offloadInfo;
-    }
-    audio_io_handle_t output = AUDIO_IO_HANDLE_NONE;
-    status_t status = af->openOutput(module, &output, &config, pDevices,
-                                     String8(""), pLatencyMs, flags);
-    if (status == NO_ERROR) {
-        *pSamplingRate = config.sample_rate;
-        *pFormat = config.format;
-        *pChannelMask = config.channel_mask;
-        if (offloadInfo != NULL) {
-            *((audio_offload_info_t *)offloadInfo) = config.offload_info;
-        }
-    }
-    return output;
-}
-
-// deprecated: replaced by aps_open_output_on_module()
-audio_io_handle_t aps_open_output(void *service __unused,
-                                         audio_devices_t *pDevices,
-                                         uint32_t *pSamplingRate,
-                                         audio_format_t *pFormat,
-                                         audio_channel_mask_t *pChannelMask,
-                                         uint32_t *pLatencyMs,
-                                         audio_output_flags_t flags)
-{
-    return open_output(AUDIO_MODULE_HANDLE_NONE, pDevices, pSamplingRate, pFormat, pChannelMask,
-                          pLatencyMs, flags, NULL);
-}
-
-audio_io_handle_t aps_open_output_on_module(void *service __unused,
-                                                   audio_module_handle_t module,
-                                                   audio_devices_t *pDevices,
-                                                   uint32_t *pSamplingRate,
-                                                   audio_format_t *pFormat,
-                                                   audio_channel_mask_t *pChannelMask,
-                                                   uint32_t *pLatencyMs,
-                                                   audio_output_flags_t flags,
-                                                   const audio_offload_info_t *offloadInfo)
-{
-    return open_output(module, pDevices, pSamplingRate, pFormat, pChannelMask,
-                          pLatencyMs, flags, offloadInfo);
-}
-
-audio_io_handle_t aps_open_dup_output(void *service __unused,
-                                                 audio_io_handle_t output1,
-                                                 audio_io_handle_t output2)
-{
-    sp<IAudioFlinger> af = AudioSystem::get_audio_flinger();
-    if (af == 0) {
-        ALOGW("%s: could not get AudioFlinger", __func__);
-        return 0;
-    }
-    return af->openDuplicateOutput(output1, output2);
-}
-
-int aps_close_output(void *service __unused, audio_io_handle_t output)
-{
-    sp<IAudioFlinger> af = AudioSystem::get_audio_flinger();
-    if (af == 0) {
-        return PERMISSION_DENIED;
-    }
-
-    return af->closeOutput(output);
-}
-
-int aps_suspend_output(void *service __unused, audio_io_handle_t output)
-{
-    sp<IAudioFlinger> af = AudioSystem::get_audio_flinger();
-    if (af == 0) {
-        ALOGW("%s: could not get AudioFlinger", __func__);
-        return PERMISSION_DENIED;
-    }
-
-    return af->suspendOutput(output);
-}
-
-int aps_restore_output(void *service __unused, audio_io_handle_t output)
-{
-    sp<IAudioFlinger> af = AudioSystem::get_audio_flinger();
-    if (af == 0) {
-        ALOGW("%s: could not get AudioFlinger", __func__);
-        return PERMISSION_DENIED;
-    }
-
-    return af->restoreOutput(output);
-}
-
-static audio_io_handle_t open_input(audio_module_handle_t module,
-                                    audio_devices_t *pDevices,
-                                    uint32_t *pSamplingRate,
-                                    audio_format_t *pFormat,
-                                    audio_channel_mask_t *pChannelMask)
-{
-    sp<IAudioFlinger> af = AudioSystem::get_audio_flinger();
-    if (af == 0) {
-        ALOGW("%s: could not get AudioFlinger", __func__);
-        return AUDIO_IO_HANDLE_NONE;
-    }
-
-    if (pSamplingRate == NULL || pFormat == NULL || pChannelMask == NULL || pDevices == NULL) {
-        return AUDIO_IO_HANDLE_NONE;
-    }
-
-    if (((*pDevices & AUDIO_DEVICE_IN_REMOTE_SUBMIX) == AUDIO_DEVICE_IN_REMOTE_SUBMIX)
-            && !captureAudioOutputAllowed(IPCThreadState::self()->getCallingPid(),
-                                          IPCThreadState::self()->getCallingUid())) {
-        ALOGE("open_input() permission denied: capture not allowed");
-        return AUDIO_IO_HANDLE_NONE;
-    }
-
-    audio_config_t config = AUDIO_CONFIG_INITIALIZER;;
-    config.sample_rate = *pSamplingRate;
-    config.format = *pFormat;
-    config.channel_mask = *pChannelMask;
-    audio_io_handle_t input = AUDIO_IO_HANDLE_NONE;
-    status_t status = af->openInput(module, &input, &config, pDevices,
-                                    String8(""), AUDIO_SOURCE_MIC, AUDIO_INPUT_FLAG_FAST /*FIXME*/);
-    if (status == NO_ERROR) {
-        *pSamplingRate = config.sample_rate;
-        *pFormat = config.format;
-        *pChannelMask = config.channel_mask;
-    }
-    return input;
-}
-
-
-// deprecated: replaced by aps_open_input_on_module(), and acoustics parameter is ignored
-audio_io_handle_t aps_open_input(void *service __unused,
-                                        audio_devices_t *pDevices,
-                                        uint32_t *pSamplingRate,
-                                        audio_format_t *pFormat,
-                                        audio_channel_mask_t *pChannelMask,
-                                        audio_in_acoustics_t acoustics __unused)
-{
-    return  open_input(AUDIO_MODULE_HANDLE_NONE, pDevices, pSamplingRate, pFormat, pChannelMask);
-}
-
-audio_io_handle_t aps_open_input_on_module(void *service __unused,
-                                                  audio_module_handle_t module,
-                                                  audio_devices_t *pDevices,
-                                                  uint32_t *pSamplingRate,
-                                                  audio_format_t *pFormat,
-                                                  audio_channel_mask_t *pChannelMask)
-{
-    return  open_input(module, pDevices, pSamplingRate, pFormat, pChannelMask);
-}
-
-int aps_close_input(void *service __unused, audio_io_handle_t input)
-{
-    sp<IAudioFlinger> af = AudioSystem::get_audio_flinger();
-    if (af == 0) {
-        return PERMISSION_DENIED;
-    }
-
-    return af->closeInput(input);
-}
-
-int aps_invalidate_stream(void *service __unused, audio_stream_type_t stream)
-{
-    sp<IAudioFlinger> af = AudioSystem::get_audio_flinger();
-    if (af == 0) {
-        return PERMISSION_DENIED;
-    }
-
-    return af->invalidateStream(stream);
-}
-
-int aps_move_effects(void *service __unused, audio_session_t session,
-                                audio_io_handle_t src_output,
-                                audio_io_handle_t dst_output)
-{
-    sp<IAudioFlinger> af = AudioSystem::get_audio_flinger();
-    if (af == 0) {
-        return PERMISSION_DENIED;
-    }
-
-    return af->moveEffects(session, src_output, dst_output);
-}
-
-char * aps_get_parameters(void *service __unused, audio_io_handle_t io_handle,
-                                     const char *keys)
-{
-    String8 result = AudioSystem::getParameters(io_handle, String8(keys));
-    return strdup(result.string());
-}
-
-void aps_set_parameters(void *service, audio_io_handle_t io_handle,
-                                   const char *kv_pairs, int delay_ms)
-{
-    AudioPolicyService *audioPolicyService = (AudioPolicyService *)service;
-
-    audioPolicyService->setParameters(io_handle, kv_pairs, delay_ms);
-}
-
-int aps_set_stream_volume(void *service, audio_stream_type_t stream,
-                                     float volume, audio_io_handle_t output,
-                                     int delay_ms)
-{
-    AudioPolicyService *audioPolicyService = (AudioPolicyService *)service;
-
-    return audioPolicyService->setStreamVolume(stream, volume, output,
-                                               delay_ms);
-}
-
-int aps_start_tone(void *service, audio_policy_tone_t tone,
-                              audio_stream_type_t stream)
-{
-    AudioPolicyService *audioPolicyService = (AudioPolicyService *)service;
-
-    return audioPolicyService->startTone(tone, stream);
-}
-
-int aps_stop_tone(void *service)
-{
-    AudioPolicyService *audioPolicyService = (AudioPolicyService *)service;
-
-    return audioPolicyService->stopTone();
-}
-
-int aps_set_voice_volume(void *service, float volume, int delay_ms)
-{
-    AudioPolicyService *audioPolicyService = (AudioPolicyService *)service;
-
-    return audioPolicyService->setVoiceVolume(volume, delay_ms);
-}
-
-}; // extern "C"
-
-}; // namespace android
diff --git a/services/audiopolicy/service/AudioPolicyEffects.cpp b/services/audiopolicy/service/AudioPolicyEffects.cpp
index b732b20..654465d 100644
--- a/services/audiopolicy/service/AudioPolicyEffects.cpp
+++ b/services/audiopolicy/service/AudioPolicyEffects.cpp
@@ -23,11 +23,11 @@
 #include <cutils/misc.h>
 #include <media/AudioEffect.h>
 #include <system/audio.h>
-#include <hardware/audio_effect.h>
-#include <audio_effects/audio_effects_conf.h>
+#include <system/audio_effects/audio_effects_conf.h>
 #include <utils/Vector.h>
 #include <utils/SortedVector.h>
 #include <cutils/config_utils.h>
+#include <binder/IPCThreadState.h>
 #include "AudioPolicyEffects.h"
 #include "ServiceUtilities.h"
 
@@ -57,11 +57,11 @@
     }
     mInputSources.clear();
 
-    for (i = 0; i < mInputs.size(); i++) {
-        mInputs.valueAt(i)->mEffects.clear();
-        delete mInputs.valueAt(i);
+    for (i = 0; i < mInputSessions.size(); i++) {
+        mInputSessions.valueAt(i)->mEffects.clear();
+        delete mInputSessions.valueAt(i);
     }
-    mInputs.clear();
+    mInputSessions.clear();
 
     // release audio output processing resources
     for (i = 0; i < mOutputStreams.size(); i++) {
@@ -93,19 +93,20 @@
         ALOGV("addInputEffects(): no processing needs to be attached to this source");
         return status;
     }
-    ssize_t idx = mInputs.indexOfKey(input);
-    EffectVector *inputDesc;
+    ssize_t idx = mInputSessions.indexOfKey(audioSession);
+    EffectVector *sessionDesc;
     if (idx < 0) {
-        inputDesc = new EffectVector(audioSession);
-        mInputs.add(input, inputDesc);
+        sessionDesc = new EffectVector(audioSession);
+        mInputSessions.add(audioSession, sessionDesc);
     } else {
         // EffectVector is existing and we just need to increase ref count
-        inputDesc = mInputs.valueAt(idx);
+        sessionDesc = mInputSessions.valueAt(idx);
     }
-    inputDesc->mRefCount++;
+    sessionDesc->mRefCount++;
 
-    ALOGV("addInputEffects(): input: %d, refCount: %d", input, inputDesc->mRefCount);
-    if (inputDesc->mRefCount == 1) {
+    ALOGV("addInputEffects(): input: %d, refCount: %d", input, sessionDesc->mRefCount);
+    if (sessionDesc->mRefCount == 1) {
+        int64_t token = IPCThreadState::self()->clearCallingIdentity();
         Vector <EffectDesc *> effects = mInputSources.valueAt(index)->mEffects;
         for (size_t i = 0; i < effects.size(); i++) {
             EffectDesc *effect = effects[i];
@@ -123,30 +124,32 @@
             }
             ALOGV("addInputEffects(): added Fx %s on source: %d",
                   effect->mName, (int32_t)aliasSource);
-            inputDesc->mEffects.add(fx);
+            sessionDesc->mEffects.add(fx);
         }
-        inputDesc->setProcessorEnabled(true);
+        sessionDesc->setProcessorEnabled(true);
+        IPCThreadState::self()->restoreCallingIdentity(token);
     }
     return status;
 }
 
 
-status_t AudioPolicyEffects::releaseInputEffects(audio_io_handle_t input)
+status_t AudioPolicyEffects::releaseInputEffects(audio_io_handle_t input,
+                                                 audio_session_t audioSession)
 {
     status_t status = NO_ERROR;
 
     Mutex::Autolock _l(mLock);
-    ssize_t index = mInputs.indexOfKey(input);
+    ssize_t index = mInputSessions.indexOfKey(audioSession);
     if (index < 0) {
         return status;
     }
-    EffectVector *inputDesc = mInputs.valueAt(index);
-    inputDesc->mRefCount--;
-    ALOGV("releaseInputEffects(): input: %d, refCount: %d", input, inputDesc->mRefCount);
-    if (inputDesc->mRefCount == 0) {
-        inputDesc->setProcessorEnabled(false);
-        delete inputDesc;
-        mInputs.removeItemsAt(index);
+    EffectVector *sessionDesc = mInputSessions.valueAt(index);
+    sessionDesc->mRefCount--;
+    ALOGV("releaseInputEffects(): input: %d, refCount: %d", input, sessionDesc->mRefCount);
+    if (sessionDesc->mRefCount == 0) {
+        sessionDesc->setProcessorEnabled(false);
+        delete sessionDesc;
+        mInputSessions.removeItemsAt(index);
         ALOGV("releaseInputEffects(): all effects released");
     }
     return status;
@@ -160,16 +163,16 @@
 
     Mutex::Autolock _l(mLock);
     size_t index;
-    for (index = 0; index < mInputs.size(); index++) {
-        if (mInputs.valueAt(index)->mSessionId == audioSession) {
+    for (index = 0; index < mInputSessions.size(); index++) {
+        if (mInputSessions.valueAt(index)->mSessionId == audioSession) {
             break;
         }
     }
-    if (index == mInputs.size()) {
+    if (index == mInputSessions.size()) {
         *count = 0;
         return BAD_VALUE;
     }
-    Vector< sp<AudioEffect> > effects = mInputs.valueAt(index)->mEffects;
+    Vector< sp<AudioEffect> > effects = mInputSessions.valueAt(index)->mEffects;
 
     for (size_t i = 0; i < effects.size(); i++) {
         effect_descriptor_t desc = effects[i]->descriptor();
@@ -251,6 +254,8 @@
     ALOGV("addOutputSessionEffects(): session: %d, refCount: %d",
           audioSession, procDesc->mRefCount);
     if (procDesc->mRefCount == 1) {
+        // make sure effects are associated to audio server even if we are executing a binder call
+        int64_t token = IPCThreadState::self()->clearCallingIdentity();
         Vector <EffectDesc *> effects = mOutputStreams.valueAt(index)->mEffects;
         for (size_t i = 0; i < effects.size(); i++) {
             EffectDesc *effect = effects[i];
@@ -269,6 +274,7 @@
         }
 
         procDesc->setProcessorEnabled(true);
+        IPCThreadState::self()->restoreCallingIdentity(token);
     }
     return status;
 }
diff --git a/services/audiopolicy/service/AudioPolicyEffects.h b/services/audiopolicy/service/AudioPolicyEffects.h
index afdaf98..0c74d87 100644
--- a/services/audiopolicy/service/AudioPolicyEffects.h
+++ b/services/audiopolicy/service/AudioPolicyEffects.h
@@ -23,7 +23,6 @@
 #include <cutils/misc.h>
 #include <media/AudioEffect.h>
 #include <system/audio.h>
-#include <hardware/audio_effect.h>
 #include <utils/Vector.h>
 #include <utils/SortedVector.h>
 
@@ -62,7 +61,8 @@
                              audio_session_t audioSession);
 
     // Add all input effects associated to this input
-    status_t releaseInputEffects(audio_io_handle_t input);
+    status_t releaseInputEffects(audio_io_handle_t input,
+                                 audio_session_t audioSession);
 
 
     // Return a list of effect descriptors for default output effects
@@ -178,12 +178,12 @@
                          size_t *curSize,
                          size_t *totSize);
 
-    // protects access to mInputSources, mInputs, mOutputStreams, mOutputSessions
+    // protects access to mInputSources, mInputSessions, mOutputStreams, mOutputSessions
     Mutex mLock;
     // Automatic input effects are configured per audio_source_t
     KeyedVector< audio_source_t, EffectDescVector* > mInputSources;
     // Automatic input effects are unique for audio_io_handle_t
-    KeyedVector< audio_io_handle_t, EffectVector* > mInputs;
+    KeyedVector< audio_session_t, EffectVector* > mInputSessions;
 
     // Automatic output effects are organized per audio_stream_type_t
     KeyedVector< audio_stream_type_t, EffectDescVector* > mOutputStreams;
diff --git a/services/audiopolicy/service/AudioPolicyInterfaceImpl.cpp b/services/audiopolicy/service/AudioPolicyInterfaceImpl.cpp
index 0387ee6..1e63a05 100644
--- a/services/audiopolicy/service/AudioPolicyInterfaceImpl.cpp
+++ b/services/audiopolicy/service/AudioPolicyInterfaceImpl.cpp
@@ -165,12 +165,10 @@
                                               audio_session_t session,
                                               audio_stream_type_t *stream,
                                               uid_t uid,
-                                              uint32_t samplingRate,
-                                              audio_format_t format,
-                                              audio_channel_mask_t channelMask,
+                                              const audio_config_t *config,
                                               audio_output_flags_t flags,
                                               audio_port_handle_t selectedDeviceId,
-                                              const audio_offload_info_t *offloadInfo)
+                                              audio_port_handle_t *portId)
 {
     if (mAudioPolicyManager == NULL) {
         return NO_INIT;
@@ -184,8 +182,9 @@
                 "%s uid %d tried to pass itself off as %d", __FUNCTION__, callingUid, uid);
         uid = callingUid;
     }
-    return mAudioPolicyManager->getOutputForAttr(attr, output, session, stream, uid, samplingRate,
-                                    format, channelMask, flags, selectedDeviceId, offloadInfo);
+    return mAudioPolicyManager->getOutputForAttr(attr, output, session, stream, uid,
+                                                 config,
+                                                 flags, selectedDeviceId, portId);
 }
 
 status_t AudioPolicyService::startOutput(audio_io_handle_t output,
@@ -276,11 +275,10 @@
                                              audio_session_t session,
                                              pid_t pid,
                                              uid_t uid,
-                                             uint32_t samplingRate,
-                                             audio_format_t format,
-                                             audio_channel_mask_t channelMask,
+                                             const audio_config_base_t *config,
                                              audio_input_flags_t flags,
-                                             audio_port_handle_t selectedDeviceId)
+                                             audio_port_handle_t selectedDeviceId,
+                                             audio_port_handle_t *portId)
 {
     if (mAudioPolicyManager == NULL) {
         return NO_INIT;
@@ -319,9 +317,9 @@
         Mutex::Autolock _l(mLock);
         // the audio_in_acoustics_t parameter is ignored by get_input()
         status = mAudioPolicyManager->getInputForAttr(attr, input, session, uid,
-                                                     samplingRate, format, channelMask,
+                                                     config,
                                                      flags, selectedDeviceId,
-                                                     &inputType);
+                                                     &inputType, portId);
         audioPolicyEffects = mAudioPolicyEffects;
 
         if (status == NO_ERROR) {
@@ -375,8 +373,23 @@
         return NO_INIT;
     }
     Mutex::Autolock _l(mLock);
+    AudioPolicyInterface::concurrency_type__mask_t concurrency;
+    status_t status = mAudioPolicyManager->startInput(input, session, &concurrency);
 
-    return mAudioPolicyManager->startInput(input, session);
+    if (status == NO_ERROR) {
+        LOG_ALWAYS_FATAL_IF(concurrency & ~AudioPolicyInterface::API_INPUT_CONCURRENCY_ALL,
+                            "startInput(): invalid concurrency type %d", (int)concurrency);
+
+        // enforce permission (if any) required for each type of concurrency
+        if (concurrency & AudioPolicyInterface::API_INPUT_CONCURRENCY_CALL) {
+            //TODO: check incall capture permission
+        }
+        if (concurrency & AudioPolicyInterface::API_INPUT_CONCURRENCY_CAPTURE) {
+            //TODO: check concurrent capture permission
+        }
+    }
+
+    return status;
 }
 
 status_t AudioPolicyService::stopInput(audio_io_handle_t input,
@@ -403,7 +416,7 @@
     }
     if (audioPolicyEffects != 0) {
         // release audio processors from the input
-        status_t status = audioPolicyEffects->releaseInputEffects(input);
+        status_t status = audioPolicyEffects->releaseInputEffects(input, session);
         if(status != NO_ERROR) {
             ALOGW("Failed to release effects on input %d", input);
         }
@@ -583,7 +596,8 @@
         *count = 0;
         return NO_INIT;
     }
-    return audioPolicyEffects->queryDefaultInputEffects(audioSession, descriptors, count);
+    return audioPolicyEffects->queryDefaultInputEffects(
+            (audio_session_t)audioSession, descriptors, count);
 }
 
 bool AudioPolicyService::isOffloadSupported(const audio_offload_info_t& info)
@@ -713,7 +727,7 @@
 
 status_t AudioPolicyService::startAudioSource(const struct audio_port_config *source,
                                   const audio_attributes_t *attributes,
-                                  audio_io_handle_t *handle)
+                                  audio_patch_handle_t *handle)
 {
     Mutex::Autolock _l(mLock);
     if (mAudioPolicyManager == NULL) {
@@ -724,7 +738,7 @@
                                                  IPCThreadState::self()->getCallingUid());
 }
 
-status_t AudioPolicyService::stopAudioSource(audio_io_handle_t handle)
+status_t AudioPolicyService::stopAudioSource(audio_patch_handle_t handle)
 {
     Mutex::Autolock _l(mLock);
     if (mAudioPolicyManager == NULL) {
diff --git a/services/audiopolicy/service/AudioPolicyInterfaceImplLegacy.cpp b/services/audiopolicy/service/AudioPolicyInterfaceImplLegacy.cpp
deleted file mode 100644
index 946c380..0000000
--- a/services/audiopolicy/service/AudioPolicyInterfaceImplLegacy.cpp
+++ /dev/null
@@ -1,633 +0,0 @@
-/*
- * Copyright (C) 2009 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "AudioPolicyService"
-//#define LOG_NDEBUG 0
-
-#include <utils/Log.h>
-#include "AudioPolicyService.h"
-#include "ServiceUtilities.h"
-
-#include <system/audio.h>
-#include <system/audio_policy.h>
-#include <hardware/audio_policy.h>
-#include <media/AudioPolicyHelper.h>
-
-namespace android {
-
-
-// ----------------------------------------------------------------------------
-
-status_t AudioPolicyService::setDeviceConnectionState(audio_devices_t device,
-                                                  audio_policy_dev_state_t state,
-                                                  const char *device_address,
-                                                  const char *device_name __unused)
-{
-    if (mpAudioPolicy == NULL) {
-        return NO_INIT;
-    }
-    if (!settingsAllowed()) {
-        return PERMISSION_DENIED;
-    }
-    if (!audio_is_output_device(device) && !audio_is_input_device(device)) {
-        return BAD_VALUE;
-    }
-    if (state != AUDIO_POLICY_DEVICE_STATE_AVAILABLE &&
-            state != AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE) {
-        return BAD_VALUE;
-    }
-
-    ALOGV("setDeviceConnectionState()");
-    Mutex::Autolock _l(mLock);
-    return mpAudioPolicy->set_device_connection_state(mpAudioPolicy, device,
-                                                      state, device_address);
-}
-
-audio_policy_dev_state_t AudioPolicyService::getDeviceConnectionState(
-                                                              audio_devices_t device,
-                                                              const char *device_address)
-{
-    if (mpAudioPolicy == NULL) {
-        return AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE;
-    }
-    return mpAudioPolicy->get_device_connection_state(mpAudioPolicy, device,
-                                                      device_address);
-}
-
-status_t AudioPolicyService::setPhoneState(audio_mode_t state)
-{
-    if (mpAudioPolicy == NULL) {
-        return NO_INIT;
-    }
-    if (!settingsAllowed()) {
-        return PERMISSION_DENIED;
-    }
-    if (uint32_t(state) >= AUDIO_MODE_CNT) {
-        return BAD_VALUE;
-    }
-
-    ALOGV("setPhoneState()");
-
-    // TODO: check if it is more appropriate to do it in platform specific policy manager
-    AudioSystem::setMode(state);
-
-    Mutex::Autolock _l(mLock);
-    mpAudioPolicy->set_phone_state(mpAudioPolicy, state);
-    mPhoneState = state;
-    return NO_ERROR;
-}
-
-audio_mode_t AudioPolicyService::getPhoneState()
-{
-    Mutex::Autolock _l(mLock);
-    return mPhoneState;
-}
-
-status_t AudioPolicyService::setForceUse(audio_policy_force_use_t usage,
-                                         audio_policy_forced_cfg_t config)
-{
-    if (mpAudioPolicy == NULL) {
-        return NO_INIT;
-    }
-    if (!settingsAllowed()) {
-        return PERMISSION_DENIED;
-    }
-    if (usage < 0 || usage >= AUDIO_POLICY_FORCE_USE_CNT) {
-        return BAD_VALUE;
-    }
-    if (config < 0 || config >= AUDIO_POLICY_FORCE_CFG_CNT) {
-        return BAD_VALUE;
-    }
-    ALOGV("setForceUse()");
-    Mutex::Autolock _l(mLock);
-    mpAudioPolicy->set_force_use(mpAudioPolicy, usage, config);
-    return NO_ERROR;
-}
-
-audio_policy_forced_cfg_t AudioPolicyService::getForceUse(audio_policy_force_use_t usage)
-{
-    if (mpAudioPolicy == NULL) {
-        return AUDIO_POLICY_FORCE_NONE;
-    }
-    if (usage < 0 || usage >= AUDIO_POLICY_FORCE_USE_CNT) {
-        return AUDIO_POLICY_FORCE_NONE;
-    }
-    return mpAudioPolicy->get_force_use(mpAudioPolicy, usage);
-}
-
-audio_io_handle_t AudioPolicyService::getOutput(audio_stream_type_t stream,
-                                    uint32_t samplingRate,
-                                    audio_format_t format,
-                                    audio_channel_mask_t channelMask,
-                                    audio_output_flags_t flags,
-                                    const audio_offload_info_t *offloadInfo)
-{
-    if (uint32_t(stream) >= AUDIO_STREAM_PUBLIC_CNT) {
-        return AUDIO_IO_HANDLE_NONE;
-    }
-    if (mpAudioPolicy == NULL) {
-        return AUDIO_IO_HANDLE_NONE;
-    }
-    ALOGV("getOutput()");
-    Mutex::Autolock _l(mLock);
-    return mpAudioPolicy->get_output(mpAudioPolicy, stream, samplingRate,
-                                    format, channelMask, flags, offloadInfo);
-}
-
-status_t AudioPolicyService::startOutput(audio_io_handle_t output,
-                                         audio_stream_type_t stream,
-                                         audio_session_t session)
-{
-    if (uint32_t(stream) >= AUDIO_STREAM_PUBLIC_CNT) {
-        return BAD_VALUE;
-    }
-    if (mpAudioPolicy == NULL) {
-        return NO_INIT;
-    }
-    ALOGV("startOutput()");
-    // create audio processors according to stream
-    sp<AudioPolicyEffects>audioPolicyEffects;
-    {
-        Mutex::Autolock _l(mLock);
-        audioPolicyEffects = mAudioPolicyEffects;
-    }
-    if (audioPolicyEffects != 0) {
-        status_t status = audioPolicyEffects->addOutputSessionEffects(output, stream, session);
-        if (status != NO_ERROR && status != ALREADY_EXISTS) {
-            ALOGW("Failed to add effects on session %d", session);
-        }
-    }
-
-    Mutex::Autolock _l(mLock);
-    return mpAudioPolicy->start_output(mpAudioPolicy, output, stream, session);
-}
-
-status_t AudioPolicyService::stopOutput(audio_io_handle_t output,
-                                        audio_stream_type_t stream,
-                                        audio_session_t session)
-{
-    if (uint32_t(stream) >= AUDIO_STREAM_PUBLIC_CNT) {
-        return BAD_VALUE;
-    }
-    if (mpAudioPolicy == NULL) {
-        return NO_INIT;
-    }
-    ALOGV("stopOutput()");
-    mOutputCommandThread->stopOutputCommand(output, stream, session);
-    return NO_ERROR;
-}
-
-status_t  AudioPolicyService::doStopOutput(audio_io_handle_t output,
-                                      audio_stream_type_t stream,
-                                      audio_session_t session)
-{
-    ALOGV("doStopOutput from tid %d", gettid());
-    // release audio processors from the stream
-    sp<AudioPolicyEffects>audioPolicyEffects;
-    {
-        Mutex::Autolock _l(mLock);
-        audioPolicyEffects = mAudioPolicyEffects;
-    }
-    if (audioPolicyEffects != 0) {
-        status_t status = audioPolicyEffects->releaseOutputSessionEffects(output, stream, session);
-        if (status != NO_ERROR && status != ALREADY_EXISTS) {
-            ALOGW("Failed to release effects on session %d", session);
-        }
-    }
-    Mutex::Autolock _l(mLock);
-    return mpAudioPolicy->stop_output(mpAudioPolicy, output, stream, session);
-}
-
-void AudioPolicyService::releaseOutput(audio_io_handle_t output,
-                                       audio_stream_type_t stream,
-                                       audio_session_t session)
-{
-    if (mpAudioPolicy == NULL) {
-        return;
-    }
-    ALOGV("releaseOutput()");
-    mOutputCommandThread->releaseOutputCommand(output, stream, session);
-}
-
-void AudioPolicyService::doReleaseOutput(audio_io_handle_t output,
-                                         audio_stream_type_t stream __unused,
-                                         audio_session_t session __unused)
-{
-    ALOGV("doReleaseOutput from tid %d", gettid());
-    Mutex::Autolock _l(mLock);
-    mpAudioPolicy->release_output(mpAudioPolicy, output);
-}
-
-status_t AudioPolicyService::getInputForAttr(const audio_attributes_t *attr,
-                                             audio_io_handle_t *input,
-                                             audio_session_t session,
-                                             pid_t pid __unused,
-                                             uid_t uid __unused,
-                                             uint32_t samplingRate,
-                                             audio_format_t format,
-                                             audio_channel_mask_t channelMask,
-                                             audio_input_flags_t flags __unused,
-                                             audio_port_handle_t selectedDeviceId __unused)
-{
-    if (mpAudioPolicy == NULL) {
-        return NO_INIT;
-    }
-
-    audio_source_t inputSource = attr->source;
-
-    // already checked by client, but double-check in case the client wrapper is bypassed
-    if (inputSource >= AUDIO_SOURCE_CNT && inputSource != AUDIO_SOURCE_HOTWORD &&
-        inputSource != AUDIO_SOURCE_FM_TUNER) {
-        return BAD_VALUE;
-    }
-
-    if (inputSource == AUDIO_SOURCE_DEFAULT) {
-        inputSource = AUDIO_SOURCE_MIC;
-    }
-
-    if ((inputSource == AUDIO_SOURCE_HOTWORD) && !captureHotwordAllowed()) {
-        return BAD_VALUE;
-    }
-
-    sp<AudioPolicyEffects>audioPolicyEffects;
-    {
-        Mutex::Autolock _l(mLock);
-        // the audio_in_acoustics_t parameter is ignored by get_input()
-        *input = mpAudioPolicy->get_input(mpAudioPolicy, inputSource, samplingRate,
-                                             format, channelMask, (audio_in_acoustics_t) 0);
-        audioPolicyEffects = mAudioPolicyEffects;
-    }
-    if (*input == AUDIO_IO_HANDLE_NONE) {
-        return INVALID_OPERATION;
-    }
-
-    if (audioPolicyEffects != 0) {
-        // create audio pre processors according to input source
-        status_t status = audioPolicyEffects->addInputEffects(*input, inputSource, session);
-        if (status != NO_ERROR && status != ALREADY_EXISTS) {
-            ALOGW("Failed to add effects on input %d", input);
-        }
-    }
-    return NO_ERROR;
-}
-
-status_t AudioPolicyService::startInput(audio_io_handle_t input,
-                                        audio_session_t session __unused)
-{
-    if (mpAudioPolicy == NULL) {
-        return NO_INIT;
-    }
-    Mutex::Autolock _l(mLock);
-
-    return mpAudioPolicy->start_input(mpAudioPolicy, input);
-}
-
-status_t AudioPolicyService::stopInput(audio_io_handle_t input,
-                                       audio_session_t session __unused)
-{
-    if (mpAudioPolicy == NULL) {
-        return NO_INIT;
-    }
-    Mutex::Autolock _l(mLock);
-
-    return mpAudioPolicy->stop_input(mpAudioPolicy, input);
-}
-
-void AudioPolicyService::releaseInput(audio_io_handle_t input,
-                                      audio_session_t session __unused)
-{
-    if (mpAudioPolicy == NULL) {
-        return;
-    }
-
-    sp<AudioPolicyEffects>audioPolicyEffects;
-    {
-        Mutex::Autolock _l(mLock);
-        mpAudioPolicy->release_input(mpAudioPolicy, input);
-        audioPolicyEffects = mAudioPolicyEffects;
-    }
-    if (audioPolicyEffects != 0) {
-        // release audio processors from the input
-        status_t status = audioPolicyEffects->releaseInputEffects(input);
-        if(status != NO_ERROR) {
-            ALOGW("Failed to release effects on input %d", input);
-        }
-    }
-}
-
-status_t AudioPolicyService::initStreamVolume(audio_stream_type_t stream,
-                                            int indexMin,
-                                            int indexMax)
-{
-    if (mpAudioPolicy == NULL) {
-        return NO_INIT;
-    }
-    if (!settingsAllowed()) {
-        return PERMISSION_DENIED;
-    }
-    if (uint32_t(stream) >= AUDIO_STREAM_PUBLIC_CNT) {
-        return BAD_VALUE;
-    }
-    Mutex::Autolock _l(mLock);
-    mpAudioPolicy->init_stream_volume(mpAudioPolicy, stream, indexMin, indexMax);
-    return NO_ERROR;
-}
-
-status_t AudioPolicyService::setStreamVolumeIndex(audio_stream_type_t stream,
-                                                  int index,
-                                                  audio_devices_t device)
-{
-    if (mpAudioPolicy == NULL) {
-        return NO_INIT;
-    }
-    if (!settingsAllowed()) {
-        return PERMISSION_DENIED;
-    }
-    if (uint32_t(stream) >= AUDIO_STREAM_PUBLIC_CNT) {
-        return BAD_VALUE;
-    }
-    Mutex::Autolock _l(mLock);
-    if (mpAudioPolicy->set_stream_volume_index_for_device) {
-        return mpAudioPolicy->set_stream_volume_index_for_device(mpAudioPolicy,
-                                                                stream,
-                                                                index,
-                                                                device);
-    } else {
-        return mpAudioPolicy->set_stream_volume_index(mpAudioPolicy, stream, index);
-    }
-}
-
-status_t AudioPolicyService::getStreamVolumeIndex(audio_stream_type_t stream,
-                                                  int *index,
-                                                  audio_devices_t device)
-{
-    if (mpAudioPolicy == NULL) {
-        return NO_INIT;
-    }
-    if (uint32_t(stream) >= AUDIO_STREAM_PUBLIC_CNT) {
-        return BAD_VALUE;
-    }
-    Mutex::Autolock _l(mLock);
-    if (mpAudioPolicy->get_stream_volume_index_for_device) {
-        return mpAudioPolicy->get_stream_volume_index_for_device(mpAudioPolicy,
-                                                                stream,
-                                                                index,
-                                                                device);
-    } else {
-        return mpAudioPolicy->get_stream_volume_index(mpAudioPolicy, stream, index);
-    }
-}
-
-uint32_t AudioPolicyService::getStrategyForStream(audio_stream_type_t stream)
-{
-    if (uint32_t(stream) >= AUDIO_STREAM_PUBLIC_CNT) {
-        return 0;
-    }
-    if (mpAudioPolicy == NULL) {
-        return 0;
-    }
-    return mpAudioPolicy->get_strategy_for_stream(mpAudioPolicy, stream);
-}
-
-//audio policy: use audio_device_t appropriately
-
-audio_devices_t AudioPolicyService::getDevicesForStream(audio_stream_type_t stream)
-{
-    if (uint32_t(stream) >= AUDIO_STREAM_PUBLIC_CNT) {
-        return AUDIO_DEVICE_NONE;
-    }
-    if (mpAudioPolicy == NULL) {
-        return AUDIO_DEVICE_NONE;
-    }
-    return mpAudioPolicy->get_devices_for_stream(mpAudioPolicy, stream);
-}
-
-audio_io_handle_t AudioPolicyService::getOutputForEffect(const effect_descriptor_t *desc)
-{
-    // FIXME change return type to status_t, and return NO_INIT here
-    if (mpAudioPolicy == NULL) {
-        return 0;
-    }
-    Mutex::Autolock _l(mLock);
-    return mpAudioPolicy->get_output_for_effect(mpAudioPolicy, desc);
-}
-
-status_t AudioPolicyService::registerEffect(const effect_descriptor_t *desc,
-                                audio_io_handle_t io,
-                                uint32_t strategy,
-                                audio_session_t session,
-                                int id)
-{
-    if (mpAudioPolicy == NULL) {
-        return NO_INIT;
-    }
-    return mpAudioPolicy->register_effect(mpAudioPolicy, desc, io, strategy, session, id);
-}
-
-status_t AudioPolicyService::unregisterEffect(int id)
-{
-    if (mpAudioPolicy == NULL) {
-        return NO_INIT;
-    }
-    return mpAudioPolicy->unregister_effect(mpAudioPolicy, id);
-}
-
-status_t AudioPolicyService::setEffectEnabled(int id, bool enabled)
-{
-    if (mpAudioPolicy == NULL) {
-        return NO_INIT;
-    }
-    return mpAudioPolicy->set_effect_enabled(mpAudioPolicy, id, enabled);
-}
-
-bool AudioPolicyService::isStreamActive(audio_stream_type_t stream, uint32_t inPastMs) const
-{
-    if (uint32_t(stream) >= AUDIO_STREAM_PUBLIC_CNT) {
-        return false;
-    }
-    if (mpAudioPolicy == NULL) {
-        return false;
-    }
-    Mutex::Autolock _l(mLock);
-    return mpAudioPolicy->is_stream_active(mpAudioPolicy, stream, inPastMs);
-}
-
-bool AudioPolicyService::isStreamActiveRemotely(audio_stream_type_t stream, uint32_t inPastMs) const
-{
-    if (uint32_t(stream) >= AUDIO_STREAM_PUBLIC_CNT) {
-        return false;
-    }
-    if (mpAudioPolicy == NULL) {
-        return false;
-    }
-    Mutex::Autolock _l(mLock);
-    return mpAudioPolicy->is_stream_active_remotely(mpAudioPolicy, stream, inPastMs);
-}
-
-bool AudioPolicyService::isSourceActive(audio_source_t source) const
-{
-    if (mpAudioPolicy == NULL) {
-        return false;
-    }
-    if (mpAudioPolicy->is_source_active == 0) {
-        return false;
-    }
-    Mutex::Autolock _l(mLock);
-    return mpAudioPolicy->is_source_active(mpAudioPolicy, source);
-}
-
-status_t AudioPolicyService::queryDefaultPreProcessing(audio_session_t audioSession,
-                                                       effect_descriptor_t *descriptors,
-                                                       uint32_t *count)
-{
-    if (mpAudioPolicy == NULL) {
-        *count = 0;
-        return NO_INIT;
-    }
-    sp<AudioPolicyEffects>audioPolicyEffects;
-    {
-        Mutex::Autolock _l(mLock);
-        audioPolicyEffects = mAudioPolicyEffects;
-    }
-    if (audioPolicyEffects == 0) {
-        *count = 0;
-        return NO_INIT;
-    }
-    return audioPolicyEffects->queryDefaultInputEffects(audioSession, descriptors, count);
-}
-
-bool AudioPolicyService::isOffloadSupported(const audio_offload_info_t& info)
-{
-    if (mpAudioPolicy == NULL) {
-        ALOGV("mpAudioPolicy == NULL");
-        return false;
-    }
-
-    if (mpAudioPolicy->is_offload_supported == NULL) {
-        ALOGV("HAL does not implement is_offload_supported");
-        return false;
-    }
-
-    return mpAudioPolicy->is_offload_supported(mpAudioPolicy, &info);
-}
-
-status_t AudioPolicyService::listAudioPorts(audio_port_role_t role __unused,
-                                            audio_port_type_t type __unused,
-                                            unsigned int *num_ports,
-                                            struct audio_port *ports __unused,
-                                            unsigned int *generation __unused)
-{
-    *num_ports = 0;
-    return INVALID_OPERATION;
-}
-
-status_t AudioPolicyService::getAudioPort(struct audio_port *port __unused)
-{
-    return INVALID_OPERATION;
-}
-
-status_t AudioPolicyService::createAudioPatch(const struct audio_patch *patch __unused,
-        audio_patch_handle_t *handle __unused)
-{
-    return INVALID_OPERATION;
-}
-
-status_t AudioPolicyService::releaseAudioPatch(audio_patch_handle_t handle __unused)
-{
-    return INVALID_OPERATION;
-}
-
-status_t AudioPolicyService::listAudioPatches(unsigned int *num_patches,
-        struct audio_patch *patches __unused,
-        unsigned int *generation __unused)
-{
-    *num_patches = 0;
-    return INVALID_OPERATION;
-}
-
-status_t AudioPolicyService::setAudioPortConfig(const struct audio_port_config *config __unused)
-{
-    return INVALID_OPERATION;
-}
-
-status_t AudioPolicyService::getOutputForAttr(const audio_attributes_t *attr,
-                                              audio_io_handle_t *output,
-                                              audio_session_t session __unused,
-                                              audio_stream_type_t *stream,
-                                              uid_t uid __unused,
-                                              uint32_t samplingRate,
-                                              audio_format_t format,
-                                              audio_channel_mask_t channelMask,
-                                              audio_output_flags_t flags,
-                                              audio_port_handle_t selectedDeviceId __unused,
-                                              const audio_offload_info_t *offloadInfo)
-{
-    if (attr != NULL) {
-        *stream = audio_attributes_to_stream_type(attr);
-    } else {
-        if (*stream == AUDIO_STREAM_DEFAULT) {
-            return BAD_VALUE;
-        }
-    }
-    *output = getOutput(*stream, samplingRate, format, channelMask,
-                                          flags, offloadInfo);
-    if (*output == AUDIO_IO_HANDLE_NONE) {
-        return INVALID_OPERATION;
-    }
-    return NO_ERROR;
-}
-
-status_t AudioPolicyService::acquireSoundTriggerSession(audio_session_t *session __unused,
-                                       audio_io_handle_t *ioHandle __unused,
-                                       audio_devices_t *device __unused)
-{
-    return INVALID_OPERATION;
-}
-
-status_t AudioPolicyService::releaseSoundTriggerSession(audio_session_t session __unused)
-{
-    return INVALID_OPERATION;
-}
-
-status_t AudioPolicyService::registerPolicyMixes(const Vector<AudioMix>& mixes __unused,
-                                                 bool registration __unused)
-{
-    return INVALID_OPERATION;
-}
-
-status_t AudioPolicyService::startAudioSource(const struct audio_port_config *source,
-                                  const audio_attributes_t *attributes,
-                                  audio_io_handle_t *handle)
-{
-    return INVALID_OPERATION;
-}
-
-status_t AudioPolicyService::stopAudioSource(audio_io_handle_t handle)
-{
-    return INVALID_OPERATION;
-}
-
-status_t AudioPolicyService::setMasterMono(bool mono)
-{
-    return INVALID_OPERATION;
-}
-
-status_t AudioPolicyService::getMasterMono(bool *mono)
-{
-    return INVALID_OPERATION;
-}
-
-}; // namespace android
diff --git a/services/audiopolicy/service/AudioPolicyService.cpp b/services/audiopolicy/service/AudioPolicyService.cpp
index 52ed73e..c4f6367 100644
--- a/services/audiopolicy/service/AudioPolicyService.cpp
+++ b/services/audiopolicy/service/AudioPolicyService.cpp
@@ -34,13 +34,10 @@
 #include "ServiceUtilities.h"
 #include <hardware_legacy/power.h>
 #include <media/AudioEffect.h>
-#include <media/EffectsFactoryApi.h>
 #include <media/AudioParameter.h>
 
-#include <hardware/hardware.h>
 #include <system/audio.h>
 #include <system/audio_policy.h>
-#include <hardware/audio_policy.h>
 
 namespace android {
 
@@ -52,11 +49,6 @@
 
 static const nsecs_t kAudioCommandTimeoutNs = seconds(3); // 3 seconds
 
-#ifdef USE_LEGACY_AUDIO_POLICY
-namespace {
-    extern struct audio_policy_service_ops aps_ops;
-};
-#endif
 
 // ----------------------------------------------------------------------------
 
@@ -78,40 +70,8 @@
         // start output activity command thread
         mOutputCommandThread = new AudioCommandThread(String8("ApmOutput"), this);
 
-#ifdef USE_LEGACY_AUDIO_POLICY
-        ALOGI("AudioPolicyService CSTOR in legacy mode");
-
-        /* instantiate the audio policy manager */
-        const struct hw_module_t *module;
-        int rc = hw_get_module(AUDIO_POLICY_HARDWARE_MODULE_ID, &module);
-        if (rc) {
-            return;
-        }
-        rc = audio_policy_dev_open(module, &mpAudioPolicyDev);
-        ALOGE_IF(rc, "couldn't open audio policy device (%s)", strerror(-rc));
-        if (rc) {
-            return;
-        }
-
-        rc = mpAudioPolicyDev->create_audio_policy(mpAudioPolicyDev, &aps_ops, this,
-                                                   &mpAudioPolicy);
-        ALOGE_IF(rc, "couldn't create audio policy (%s)", strerror(-rc));
-        if (rc) {
-            return;
-        }
-
-        rc = mpAudioPolicy->init_check(mpAudioPolicy);
-        ALOGE_IF(rc, "couldn't init_check the audio policy (%s)", strerror(-rc));
-        if (rc) {
-            return;
-        }
-        ALOGI("Loaded audio policy from %s (%s)", module->name, module->id);
-#else
-        ALOGI("AudioPolicyService CSTOR in new mode");
-
         mAudioPolicyClient = new AudioPolicyClient(this);
         mAudioPolicyManager = createAudioPolicyManager(mAudioPolicyClient);
-#endif
     }
     // load audio processing modules
     sp<AudioPolicyEffects>audioPolicyEffects = new AudioPolicyEffects();
@@ -127,17 +87,8 @@
     mAudioCommandThread->exit();
     mOutputCommandThread->exit();
 
-#ifdef USE_LEGACY_AUDIO_POLICY
-    if (mpAudioPolicy != NULL && mpAudioPolicyDev != NULL) {
-        mpAudioPolicyDev->destroy_audio_policy(mpAudioPolicyDev, mpAudioPolicy);
-    }
-    if (mpAudioPolicyDev != NULL) {
-        audio_policy_dev_close(mpAudioPolicyDev);
-    }
-#else
     destroyAudioPolicyManager(mAudioPolicyManager);
     delete mAudioPolicyClient;
-#endif
 
     mNotificationClients.clear();
     mAudioPolicyEffects.clear();
@@ -185,14 +136,12 @@
         Mutex::Autolock _l(mNotificationClientsLock);
         mNotificationClients.removeItem(uid);
     }
-#ifndef USE_LEGACY_AUDIO_POLICY
     {
         Mutex::Autolock _l(mLock);
         if (mAudioPolicyManager) {
             mAudioPolicyManager->releaseResourcesForUid(uid);
         }
     }
-#endif
 }
 
 void AudioPolicyService::onAudioPortListUpdate()
@@ -358,11 +307,7 @@
     char buffer[SIZE];
     String8 result;
 
-#ifdef USE_LEGACY_AUDIO_POLICY
-    snprintf(buffer, SIZE, "PolicyManager Interface: %p\n", mpAudioPolicy);
-#else
     snprintf(buffer, SIZE, "AudioPolicyManager: %p\n", mAudioPolicyManager);
-#endif
     result.append(buffer);
     snprintf(buffer, SIZE, "Command Thread: %p\n", mAudioCommandThread.get());
     result.append(buffer);
@@ -392,15 +337,9 @@
             mTonePlaybackThread->dump(fd);
         }
 
-#ifdef USE_LEGACY_AUDIO_POLICY
-        if (mpAudioPolicy) {
-            mpAudioPolicy->dump(mpAudioPolicy, fd);
-        }
-#else
         if (mAudioPolicyManager) {
             mAudioPolicyManager->dump(fd);
         }
-#endif
 
         if (locked) mLock.unlock();
     }
@@ -1208,29 +1147,4 @@
 int aps_set_voice_volume(void *service, float volume, int delay_ms);
 };
 
-#ifdef USE_LEGACY_AUDIO_POLICY
-namespace {
-    struct audio_policy_service_ops aps_ops = {
-        .open_output           = aps_open_output,
-        .open_duplicate_output = aps_open_dup_output,
-        .close_output          = aps_close_output,
-        .suspend_output        = aps_suspend_output,
-        .restore_output        = aps_restore_output,
-        .open_input            = aps_open_input,
-        .close_input           = aps_close_input,
-        .set_stream_volume     = aps_set_stream_volume,
-        .invalidate_stream     = aps_invalidate_stream,
-        .set_parameters        = aps_set_parameters,
-        .get_parameters        = aps_get_parameters,
-        .start_tone            = aps_start_tone,
-        .stop_tone             = aps_stop_tone,
-        .set_voice_volume      = aps_set_voice_volume,
-        .move_effects          = aps_move_effects,
-        .load_hw_module        = aps_load_hw_module,
-        .open_output_on_module = aps_open_output_on_module,
-        .open_input_on_module  = aps_open_input_on_module,
-    };
-}; // namespace <unnamed>
-#endif
-
 }; // namespace android
diff --git a/services/audiopolicy/service/AudioPolicyService.h b/services/audiopolicy/service/AudioPolicyService.h
index 8c9b23c..9a083f4 100644
--- a/services/audiopolicy/service/AudioPolicyService.h
+++ b/services/audiopolicy/service/AudioPolicyService.h
@@ -26,14 +26,10 @@
 #include <binder/BinderService.h>
 #include <system/audio.h>
 #include <system/audio_policy.h>
-#include <hardware/audio_policy.h>
 #include <media/IAudioPolicyService.h>
 #include <media/ToneGenerator.h>
 #include <media/AudioEffect.h>
 #include <media/AudioPolicy.h>
-#ifdef USE_LEGACY_AUDIO_POLICY
-#include <hardware_legacy/AudioPolicyInterface.h>
-#endif
 #include "AudioPolicyEffects.h"
 #include "managerdefault/AudioPolicyManager.h"
 
@@ -84,12 +80,10 @@
                                       audio_session_t session,
                                       audio_stream_type_t *stream,
                                       uid_t uid,
-                                      uint32_t samplingRate = 0,
-                                      audio_format_t format = AUDIO_FORMAT_DEFAULT,
-                                      audio_channel_mask_t channelMask = 0,
-                                      audio_output_flags_t flags = AUDIO_OUTPUT_FLAG_NONE,
-                                      audio_port_handle_t selectedDeviceId = AUDIO_PORT_HANDLE_NONE,
-                                      const audio_offload_info_t *offloadInfo = NULL);
+                                      const audio_config_t *config,
+                                      audio_output_flags_t flags,
+                                      audio_port_handle_t selectedDeviceId,
+                                      audio_port_handle_t *portId);
     virtual status_t startOutput(audio_io_handle_t output,
                                  audio_stream_type_t stream,
                                  audio_session_t session);
@@ -104,11 +98,10 @@
                                      audio_session_t session,
                                      pid_t pid,
                                      uid_t uid,
-                                     uint32_t samplingRate,
-                                     audio_format_t format,
-                                     audio_channel_mask_t channelMask,
+                                     const audio_config_base_t *config,
                                      audio_input_flags_t flags,
-                                     audio_port_handle_t selectedDeviceId = AUDIO_PORT_HANDLE_NONE);
+                                     audio_port_handle_t selectedDeviceId = AUDIO_PORT_HANDLE_NONE,
+                                     audio_port_handle_t *portId = NULL);
     virtual status_t startInput(audio_io_handle_t input,
                                 audio_session_t session);
     virtual status_t stopInput(audio_io_handle_t input,
@@ -203,8 +196,8 @@
 
     virtual status_t startAudioSource(const struct audio_port_config *source,
                                       const audio_attributes_t *attributes,
-                                      audio_io_handle_t *handle);
-    virtual status_t stopAudioSource(audio_io_handle_t handle);
+                                      audio_patch_handle_t *handle);
+    virtual status_t stopAudioSource(audio_patch_handle_t handle);
 
     virtual status_t setMasterMono(bool mono);
     virtual status_t getMasterMono(bool *mono);
diff --git a/services/camera/libcameraservice/Android.mk b/services/camera/libcameraservice/Android.mk
index 7feed6b..2be9362 100644
--- a/services/camera/libcameraservice/Android.mk
+++ b/services/camera/libcameraservice/Android.mk
@@ -28,6 +28,7 @@
     common/Camera2ClientBase.cpp \
     common/CameraDeviceBase.cpp \
     common/CameraModule.cpp \
+    common/CameraProviderManager.cpp \
     common/FrameProcessorBase.cpp \
     api1/CameraClient.cpp \
     api1/Camera2Client.cpp \
@@ -40,15 +41,17 @@
     api1/client2/CaptureSequencer.cpp \
     api1/client2/ZslProcessor.cpp \
     api2/CameraDeviceClient.cpp \
+    device1/CameraHardwareInterface.cpp \
     device3/Camera3Device.cpp \
     device3/Camera3Stream.cpp \
     device3/Camera3IOStreamBase.cpp \
     device3/Camera3InputStream.cpp \
     device3/Camera3OutputStream.cpp \
-    device3/Camera3ZslStream.cpp \
     device3/Camera3DummyStream.cpp \
+    device3/Camera3SharedOutputStream.cpp \
     device3/StatusTracker.cpp \
     device3/Camera3BufferManager.cpp \
+    device3/Camera3StreamSplitter.cpp \
     gui/RingBufferConsumer.cpp \
     utils/CameraTraces.cpp \
     utils/AutoConditionLock.cpp \
@@ -63,18 +66,24 @@
     libmedia \
     libmediautils \
     libcamera_client \
+    libcamera_metadata \
     libgui \
     libhardware \
-    libcamera_metadata \
+    libhidlbase \
+    libhidltransport \
     libjpeg \
-    libmemunreachable
+    libmemunreachable \
+    android.hardware.camera.common@1.0 \
+    android.hardware.camera.provider@2.4 \
+    android.hardware.camera.device@1.0 \
+    android.hardware.camera.device@3.2 \
+    android.hidl.manager@1.0
 
 LOCAL_EXPORT_SHARED_LIBRARY_HEADERS := libbinder libcamera_client
 
 LOCAL_C_INCLUDES += \
     system/media/private/camera/include \
-    frameworks/native/include/media/openmax \
-    external/jpeg
+    frameworks/native/include/media/openmax
 
 LOCAL_EXPORT_C_INCLUDE_DIRS := \
     frameworks/av/services/camera/libcameraservice
diff --git a/services/camera/libcameraservice/CameraFlashlight.cpp b/services/camera/libcameraservice/CameraFlashlight.cpp
index 6314ba5..07d88f6 100644
--- a/services/camera/libcameraservice/CameraFlashlight.cpp
+++ b/services/camera/libcameraservice/CameraFlashlight.cpp
@@ -36,10 +36,18 @@
 // CameraFlashlight implementation begins
 // used by camera service to control flashflight.
 /////////////////////////////////////////////////////////////////////
-CameraFlashlight::CameraFlashlight(CameraModule& cameraModule,
-        const camera_module_callbacks_t& callbacks) :
-        mCameraModule(&cameraModule),
-        mCallbacks(&callbacks),
+CameraFlashlight::CameraFlashlight(CameraModule* cameraModule,
+        camera_module_callbacks_t* callbacks) :
+        mCameraModule(cameraModule),
+        mCallbacks(callbacks),
+        mFlashlightMapInitialized(false) {
+}
+
+CameraFlashlight::CameraFlashlight(sp<CameraProviderManager> providerManager,
+        camera_module_callbacks_t* callbacks) :
+        mCameraModule(nullptr),
+        mProviderManager(providerManager),
+        mCallbacks(callbacks),
         mFlashlightMapInitialized(false) {
 }
 
@@ -55,8 +63,10 @@
 
     status_t res = OK;
 
-    if (mCameraModule->getModuleApiVersion() >= CAMERA_MODULE_API_VERSION_2_4) {
-        mFlashControl = new ModuleFlashControl(*mCameraModule, *mCallbacks);
+    if (mCameraModule == nullptr) {
+        mFlashControl = new ProviderFlashControl(mProviderManager);
+    } else if (mCameraModule->getModuleApiVersion() >= CAMERA_MODULE_API_VERSION_2_4) {
+        mFlashControl = new ModuleFlashControl(*mCameraModule);
         if (mFlashControl == NULL) {
             ALOGV("%s: cannot create flash control for module api v2.4+",
                      __FUNCTION__);
@@ -69,7 +79,7 @@
                     CAMERA_MODULE_API_VERSION_2_0) {
             camera_info info;
             res = mCameraModule->getCameraInfo(
-                    atoi(String8(cameraId).string()), &info);
+                    atoi(cameraId.string()), &info);
             if (res) {
                 ALOGE("%s: failed to get camera info for camera %s",
                         __FUNCTION__, cameraId.string());
@@ -157,15 +167,27 @@
 status_t CameraFlashlight::findFlashUnits() {
     Mutex::Autolock l(mLock);
     status_t res;
-    int32_t numCameras = mCameraModule->getNumberOfCameras();
+
+    std::vector<String8> cameraIds;
+    if (mCameraModule) {
+        cameraIds.resize(mCameraModule->getNumberOfCameras());
+        for (size_t i = 0; i < cameraIds.size(); i++) {
+            cameraIds[i] = String8::format("%zu", i);
+        }
+    } else {
+        // No module, must be provider
+        std::vector<std::string> ids = mProviderManager->getCameraDeviceIds();
+        cameraIds.resize(ids.size());
+        for (size_t i = 0; i < cameraIds.size(); i++) {
+            cameraIds[i] = String8(ids[i].c_str());
+        }
+    }
 
     mHasFlashlightMap.clear();
     mFlashlightMapInitialized = false;
 
-    for (int32_t i = 0; i < numCameras; i++) {
+    for (auto &id : cameraIds) {
         bool hasFlash = false;
-        String8 id = String8::format("%d", i);
-
         res = createFlashlightControl(id);
         if (res) {
             ALOGE("%s: failed to create flash control for %s", __FUNCTION__,
@@ -224,7 +246,7 @@
         return NO_INIT;
     }
 
-    if (mCameraModule->getModuleApiVersion() < CAMERA_MODULE_API_VERSION_2_4) {
+    if (mCameraModule && mCameraModule->getModuleApiVersion() < CAMERA_MODULE_API_VERSION_2_4) {
         // framework is going to open a camera device, all flash light control
         // should be closed for backward compatible support.
         mFlashControl.clear();
@@ -274,7 +296,7 @@
     if (mOpenedCameraIds.size() != 0)
         return OK;
 
-    if (mCameraModule->getModuleApiVersion() < CAMERA_MODULE_API_VERSION_2_4) {
+    if (mCameraModule && mCameraModule->getModuleApiVersion() < CAMERA_MODULE_API_VERSION_2_4) {
         // notify torch available for all cameras with a flash
         int numCameras = mCameraModule->getNumberOfCameras();
         for (int i = 0; i < numCameras; i++) {
@@ -298,10 +320,35 @@
 // ModuleFlashControl implementation begins
 // Flash control for camera module v2.4 and above.
 /////////////////////////////////////////////////////////////////////
-ModuleFlashControl::ModuleFlashControl(CameraModule& cameraModule,
-        const camera_module_callbacks_t& callbacks) :
+ProviderFlashControl::ProviderFlashControl(sp<CameraProviderManager> providerManager) :
+        mProviderManager(providerManager) {
+}
+
+ProviderFlashControl::~ProviderFlashControl() {
+}
+
+status_t ProviderFlashControl::hasFlashUnit(const String8& cameraId, bool *hasFlash) {
+    if (!hasFlash) {
+        return BAD_VALUE;
+    }
+    *hasFlash = mProviderManager->hasFlashUnit(cameraId.string());
+    return OK;
+}
+
+status_t ProviderFlashControl::setTorchMode(const String8& cameraId, bool enabled) {
+    ALOGV("%s: set camera %s torch mode to %d", __FUNCTION__,
+            cameraId.string(), enabled);
+
+    return mProviderManager->setTorchMode(cameraId.string(), enabled);
+}
+// ProviderFlashControl implementation ends
+
+/////////////////////////////////////////////////////////////////////
+// ModuleFlashControl implementation begins
+// Flash control for camera module v2.4 and above.
+/////////////////////////////////////////////////////////////////////
+ModuleFlashControl::ModuleFlashControl(CameraModule& cameraModule) :
         mCameraModule(&cameraModule) {
-    (void) callbacks;
 }
 
 ModuleFlashControl::~ModuleFlashControl() {
@@ -477,7 +524,7 @@
     }
 
     sp<CameraDeviceBase> device =
-            new Camera3Device(atoi(cameraId.string()));
+            new Camera3Device(cameraId);
     if (device == NULL) {
         return NO_MEMORY;
     }
diff --git a/services/camera/libcameraservice/CameraFlashlight.h b/services/camera/libcameraservice/CameraFlashlight.h
index 59fc87d..b7c7690 100644
--- a/services/camera/libcameraservice/CameraFlashlight.h
+++ b/services/camera/libcameraservice/CameraFlashlight.h
@@ -17,14 +17,17 @@
 #ifndef ANDROID_SERVERS_CAMERA_CAMERAFLASHLIGHT_H
 #define ANDROID_SERVERS_CAMERA_CAMERAFLASHLIGHT_H
 
-#include "hardware/camera_common.h"
-#include "utils/KeyedVector.h"
-#include "utils/SortedVector.h"
-#include "gui/GLConsumer.h"
-#include "gui/Surface.h"
+#include <gui/GLConsumer.h>
+#include <gui/Surface.h>
+#include <hardware/camera_common.h>
+#include <utils/KeyedVector.h>
+#include <utils/SortedVector.h>
+#include "common/CameraProviderManager.h"
+#include "common/CameraModule.h"
 #include "common/CameraDeviceBase.h"
 #include "device1/CameraHardwareInterface.h"
 
+
 namespace android {
 
 /**
@@ -52,8 +55,10 @@
  */
 class CameraFlashlight : public virtual VirtualLightRefBase {
     public:
-        CameraFlashlight(CameraModule& cameraModule,
-                const camera_module_callbacks_t& callbacks);
+        CameraFlashlight(CameraModule* cameraModule,
+                camera_module_callbacks_t* callbacks);
+        CameraFlashlight(sp<CameraProviderManager> providerManager,
+                camera_module_callbacks_t* callbacks);
         virtual ~CameraFlashlight();
 
         // Find all flash units. This must be called before other methods. All
@@ -88,7 +93,10 @@
         bool hasFlashUnitLocked(const String8& cameraId);
 
         sp<FlashControlBase> mFlashControl;
+
         CameraModule *mCameraModule;
+        sp<CameraProviderManager> mProviderManager;
+
         const camera_module_callbacks_t *mCallbacks;
         SortedVector<String8> mOpenedCameraIds;
 
@@ -100,12 +108,29 @@
 };
 
 /**
+ * Flash control for camera provider v2.4 and above.
+ */
+class ProviderFlashControl : public FlashControlBase {
+    public:
+        ProviderFlashControl(sp<CameraProviderManager> providerManager);
+        virtual ~ProviderFlashControl();
+
+        // FlashControlBase
+        status_t hasFlashUnit(const String8& cameraId, bool *hasFlash);
+        status_t setTorchMode(const String8& cameraId, bool enabled);
+
+    private:
+        sp<CameraProviderManager> mProviderManager;
+
+        Mutex mLock;
+};
+
+/**
  * Flash control for camera module v2.4 and above.
  */
 class ModuleFlashControl : public FlashControlBase {
     public:
-        ModuleFlashControl(CameraModule& cameraModule,
-                const camera_module_callbacks_t& callbacks);
+        ModuleFlashControl(CameraModule& cameraModule);
         virtual ~ModuleFlashControl();
 
         // FlashControlBase
diff --git a/services/camera/libcameraservice/CameraService.cpp b/services/camera/libcameraservice/CameraService.cpp
index 85faac6..4318a11 100644
--- a/services/camera/libcameraservice/CameraService.cpp
+++ b/services/camera/libcameraservice/CameraService.cpp
@@ -32,6 +32,7 @@
 #include <android/hardware/ICameraClient.h>
 
 #include <android-base/macros.h>
+#include <android-base/parseint.h>
 #include <binder/AppOpsManager.h>
 #include <binder/IPCThreadState.h>
 #include <binder/IServiceManager.h>
@@ -54,6 +55,7 @@
 #include <private/android_filesystem_config.h>
 #include <system/camera_vendor_tags.h>
 #include <system/camera_metadata.h>
+
 #include <system/camera.h>
 
 #include "CameraService.h"
@@ -69,7 +71,11 @@
 namespace android {
 
 using binder::Status;
-using namespace hardware;
+using hardware::ICamera;
+using hardware::ICameraClient;
+using hardware::ICameraServiceListener;
+using hardware::camera::common::V1_0::CameraDeviceStatus;
+using hardware::camera::common::V1_0::TorchModeStatus;
 
 // ----------------------------------------------------------------------------
 // Logging support -- this is for debugging only
@@ -103,9 +109,24 @@
         int new_status) {
     sp<CameraService> cs = const_cast<CameraService*>(
             static_cast<const CameraService*>(callbacks));
+    String8 id = String8::format("%d", camera_id);
 
-    cs->onDeviceStatusChanged(camera_id,
-            static_cast<camera_device_status_t>(new_status));
+    CameraDeviceStatus newStatus{CameraDeviceStatus::NOT_PRESENT};
+    switch (new_status) {
+        case CAMERA_DEVICE_STATUS_NOT_PRESENT:
+            newStatus = CameraDeviceStatus::NOT_PRESENT;
+            break;
+        case CAMERA_DEVICE_STATUS_PRESENT:
+            newStatus = CameraDeviceStatus::PRESENT;
+            break;
+        case CAMERA_DEVICE_STATUS_ENUMERATING:
+            newStatus = CameraDeviceStatus::ENUMERATING;
+            break;
+        default:
+            ALOGW("Unknown device status change to %d", new_status);
+            break;
+    }
+    cs->onDeviceStatusChanged(id, newStatus);
 }
 
 static void torch_mode_status_change(
@@ -119,16 +140,16 @@
     sp<CameraService> cs = const_cast<CameraService*>(
                                 static_cast<const CameraService*>(callbacks));
 
-    int32_t status;
+    TorchModeStatus status;
     switch (new_status) {
         case TORCH_MODE_STATUS_NOT_AVAILABLE:
-            status = ICameraServiceListener::TORCH_STATUS_NOT_AVAILABLE;
+            status = TorchModeStatus::NOT_AVAILABLE;
             break;
         case TORCH_MODE_STATUS_AVAILABLE_OFF:
-            status = ICameraServiceListener::TORCH_STATUS_AVAILABLE_OFF;
+            status = TorchModeStatus::AVAILABLE_OFF;
             break;
         case TORCH_MODE_STATUS_AVAILABLE_ON:
-            status = ICameraServiceListener::TORCH_STATUS_AVAILABLE_ON;
+            status = TorchModeStatus::AVAILABLE_ON;
             break;
         default:
             ALOGE("Unknown torch status %d", new_status);
@@ -143,16 +164,11 @@
 
 // ----------------------------------------------------------------------------
 
-// This is ugly and only safe if we never re-create the CameraService, but
-// should be ok for now.
-static CameraService *gCameraService;
-
 CameraService::CameraService() :
         mEventLog(DEFAULT_EVENT_LOG_LENGTH),
         mNumberOfCameras(0), mNumberOfNormalCameras(0),
-        mSoundRef(0), mModule(nullptr) {
+        mSoundRef(0), mInitialized(false), mModule(nullptr) {
     ALOGI("CameraService started (pid=%d)", getpid());
-    gCameraService = this;
 
     this->camera_device_status_change = android::camera_device_status_change;
     this->torch_mode_status_change = android::torch_mode_status_change;
@@ -171,13 +187,30 @@
     notifier.noteResetCamera();
     notifier.noteResetFlashlight();
 
+    status_t res = INVALID_OPERATION;
+
+    bool disableTreble = property_get_bool("camera.disable_treble", false);
+    if (disableTreble) {
+        ALOGI("Treble disabled - using legacy path");
+        res = loadLegacyHalModule();
+    } else {
+        res = enumerateProviders();
+    }
+    if (res == OK) {
+        mInitialized = true;
+    }
+
+    CameraService::pingCameraServiceProxy();
+}
+
+status_t CameraService::loadLegacyHalModule() {
     camera_module_t *rawModule;
     int err = hw_get_module(CAMERA_HARDWARE_MODULE_ID,
             (const hw_module_t **)&rawModule);
     if (err < 0) {
         ALOGE("Could not load camera HAL module: %d (%s)", err, strerror(-err));
         logServiceError("Could not load camera HAL module", err);
-        return;
+        return INVALID_OPERATION;
     }
 
     mModule = new CameraModule(rawModule);
@@ -189,7 +222,7 @@
 
         delete mModule;
         mModule = nullptr;
-        return;
+        return INVALID_OPERATION;
     }
     ALOGI("Loaded \"%s\" camera module", mModule->getModuleName());
 
@@ -203,7 +236,7 @@
         setUpVendorTags();
     }
 
-    mFlashlight = new CameraFlashlight(*mModule, *this);
+    mFlashlight = new CameraFlashlight(mModule, this);
     status_t res = mFlashlight->findFlashUnits();
     if (res) {
         // impossible because we haven't open any camera devices.
@@ -231,7 +264,7 @@
             if (checkCameraCapabilities(i, info, &latestStrangeCameraId) != OK) {
                 delete mModule;
                 mModule = nullptr;
-                return;
+                return INVALID_OPERATION;
             }
         }
 
@@ -261,7 +294,7 @@
 
         if (mFlashlight->hasFlashUnit(cameraId)) {
             mTorchStatusMap.add(cameraId,
-                    ICameraServiceListener::TORCH_STATUS_AVAILABLE_OFF);
+                    TorchModeStatus::AVAILABLE_OFF);
         }
     }
 
@@ -269,14 +302,70 @@
         mModule->setCallbacks(this);
     }
 
-    CameraService::pingCameraServiceProxy();
+    return OK;
 }
 
+status_t CameraService::enumerateProviders() {
+    mCameraProviderManager = new CameraProviderManager();
+    status_t res;
+    res = mCameraProviderManager->initialize(this);
+    if (res != OK) {
+        ALOGE("%s: Unable to initialize camera provider manager: %s (%d)",
+                __FUNCTION__, strerror(-res), res);
+        return res;
+    }
+
+    mNumberOfCameras = mCameraProviderManager->getCameraCount();
+    mNumberOfNormalCameras = mCameraProviderManager->getStandardCameraCount();
+
+    // Setup vendor tags before we call get_camera_info the first time
+    // because HAL might need to setup static vendor keys in get_camera_info
+    // TODO: maybe put this into CameraProviderManager::initialize()?
+    mCameraProviderManager->setUpVendorTags();
+
+    mFlashlight = new CameraFlashlight(mCameraProviderManager, this);
+    res = mFlashlight->findFlashUnits();
+    if (res != OK) {
+        ALOGE("Failed to enumerate flash units: %s (%d)", strerror(-res), res);
+    }
+
+    // TODO: Verify device versions are in support
+
+    for (auto& cameraId : mCameraProviderManager->getCameraDeviceIds()) {
+        hardware::camera::common::V1_0::CameraResourceCost cost;
+        res = mCameraProviderManager->getResourceCost(cameraId, &cost);
+        if (res != OK) {
+            ALOGE("Failed to query device resource cost: %s (%d)", strerror(-res), res);
+            continue;
+        }
+        std::set<String8> conflicting;
+        for (size_t i = 0; i < cost.conflictingDevices.size(); i++) {
+            conflicting.emplace(String8(cost.conflictingDevices[i].c_str()));
+        }
+        String8 id8 = String8(cameraId.c_str());
+
+        Mutex::Autolock lock(mCameraStatesLock);
+        mCameraStates.emplace(id8,
+            std::make_shared<CameraState>(id8, cost.resourceCost, conflicting));
+
+        if (mFlashlight->hasFlashUnit(id8)) {
+            mTorchStatusMap.add(id8,
+                TorchModeStatus::AVAILABLE_OFF);
+        }
+    }
+
+    return OK;
+}
+
+
 sp<ICameraServiceProxy> CameraService::getCameraServiceProxy() {
     sp<ICameraServiceProxy> proxyBinder = nullptr;
 #ifndef __BRILLO__
     sp<IServiceManager> sm = defaultServiceManager();
-    sp<IBinder> binder = sm->getService(String16("media.camera.proxy"));
+    // Use checkService because cameraserver normally starts before the
+    // system server and the proxy service. So the long timeout that getService
+    // has before giving up is inappropriate.
+    sp<IBinder> binder = sm->checkService(String16("media.camera.proxy"));
     if (binder != nullptr) {
         proxyBinder = interface_cast<ICameraServiceProxy>(binder);
     }
@@ -296,30 +385,30 @@
         mModule = nullptr;
     }
     VendorTagDescriptor::clearGlobalVendorTagDescriptor();
-    gCameraService = nullptr;
 }
 
-void CameraService::onDeviceStatusChanged(int  cameraId,
-        camera_device_status_t newStatus) {
-    ALOGI("%s: Status changed for cameraId=%d, newStatus=%d", __FUNCTION__,
-          cameraId, newStatus);
+void CameraService::onDeviceStatusChanged(const String8& id,
+        CameraDeviceStatus newHalStatus) {
+    ALOGI("%s: Status changed for cameraId=%s, newStatus=%d", __FUNCTION__,
+            id.string(), newHalStatus);
 
-    String8 id = String8::format("%d", cameraId);
+    StatusInternal newStatus = mapToInternal(newHalStatus);
+
     std::shared_ptr<CameraState> state = getCameraState(id);
 
     if (state == nullptr) {
-        ALOGE("%s: Bad camera ID %d", __FUNCTION__, cameraId);
+        ALOGE("%s: Bad camera ID %s", __FUNCTION__, id.string());
         return;
     }
 
-    int32_t oldStatus = state->getStatus();
+    StatusInternal oldStatus = state->getStatus();
 
-    if (oldStatus == static_cast<int32_t>(newStatus)) {
+    if (oldStatus == newStatus) {
         ALOGE("%s: State transition to the same status %#x not allowed", __FUNCTION__, newStatus);
         return;
     }
 
-    if (newStatus == CAMERA_DEVICE_STATUS_NOT_PRESENT) {
+    if (newStatus == StatusInternal::NOT_PRESENT) {
         logDeviceRemoved(id, String8::format("Device status changed from %d to %d", oldStatus,
                 newStatus));
         sp<BasicClient> clientToDisconnect;
@@ -329,25 +418,23 @@
 
             // Set the device status to NOT_PRESENT, clients will no longer be able to connect
             // to this device until the status changes
-            updateStatus(ICameraServiceListener::STATUS_NOT_PRESENT, id);
+            updateStatus(StatusInternal::NOT_PRESENT, id);
 
             // Remove cached shim parameters
             state->setShimParams(CameraParameters());
 
-            // Remove the client from the list of active clients
+            // Remove the client from the list of active clients, if there is one
             clientToDisconnect = removeClientLocked(id);
+        }
 
+        // Disconnect client
+        if (clientToDisconnect.get() != nullptr) {
+            ALOGI("%s: Client for camera ID %s evicted due to device status change from HAL",
+                    __FUNCTION__, id.string());
             // Notify the client of disconnection
             clientToDisconnect->notifyError(
                     hardware::camera2::ICameraDeviceCallbacks::ERROR_CAMERA_DISCONNECTED,
                     CaptureResultExtras{});
-        }
-
-        ALOGI("%s: Client for camera ID %s evicted due to device status change from HAL",
-                __FUNCTION__, id.string());
-
-        // Disconnect client
-        if (clientToDisconnect.get() != nullptr) {
             // Ensure not in binder RPC so client disconnect PID checks work correctly
             LOG_ALWAYS_FATAL_IF(getCallingPid() != getpid(),
                     "onDeviceStatusChanged must be called from the camera service process!");
@@ -355,27 +442,27 @@
         }
 
     } else {
-        if (oldStatus == ICameraServiceListener::STATUS_NOT_PRESENT) {
+        if (oldStatus == StatusInternal::NOT_PRESENT) {
             logDeviceAdded(id, String8::format("Device status changed from %d to %d", oldStatus,
                     newStatus));
         }
-        updateStatus(static_cast<int32_t>(newStatus), id);
+        updateStatus(newStatus, id);
     }
 
 }
 
 void CameraService::onTorchStatusChanged(const String8& cameraId,
-        int32_t newStatus) {
+        TorchModeStatus newStatus) {
     Mutex::Autolock al(mTorchStatusMutex);
     onTorchStatusChangedLocked(cameraId, newStatus);
 }
 
 void CameraService::onTorchStatusChangedLocked(const String8& cameraId,
-        int32_t newStatus) {
+        TorchModeStatus newStatus) {
     ALOGI("%s: Torch status changed for cameraId=%s, newStatus=%d",
             __FUNCTION__, cameraId.string(), newStatus);
 
-    int32_t status;
+    TorchModeStatus status;
     status_t res = getTorchStatusLocked(cameraId, &status);
     if (res) {
         ALOGE("%s: cannot get torch status of camera %s: %s (%d)",
@@ -403,16 +490,16 @@
             BatteryNotifier& notifier(BatteryNotifier::getInstance());
             if (oldUid != newUid) {
                 // If the UID has changed, log the status and update current UID in mTorchUidMap
-                if (status == ICameraServiceListener::TORCH_STATUS_AVAILABLE_ON) {
+                if (status == TorchModeStatus::AVAILABLE_ON) {
                     notifier.noteFlashlightOff(cameraId, oldUid);
                 }
-                if (newStatus == ICameraServiceListener::TORCH_STATUS_AVAILABLE_ON) {
+                if (newStatus == TorchModeStatus::AVAILABLE_ON) {
                     notifier.noteFlashlightOn(cameraId, newUid);
                 }
                 iter->second.second = newUid;
             } else {
                 // If the UID has not changed, log the status
-                if (newStatus == ICameraServiceListener::TORCH_STATUS_AVAILABLE_ON) {
+                if (newStatus == TorchModeStatus::AVAILABLE_ON) {
                     notifier.noteFlashlightOn(cameraId, oldUid);
                 } else {
                     notifier.noteFlashlightOff(cameraId, oldUid);
@@ -424,7 +511,7 @@
     {
         Mutex::Autolock lock(mStatusListenerLock);
         for (auto& i : mListenerList) {
-            i->onTorchStatusChanged(newStatus, String16{cameraId});
+            i->onTorchStatusChanged(mapToInterface(newStatus), String16{cameraId});
         }
     }
 }
@@ -450,7 +537,7 @@
 Status CameraService::getCameraInfo(int cameraId,
         CameraInfo* cameraInfo) {
     ATRACE_CALL();
-    if (!mModule) {
+    if (!mInitialized) {
         return STATUS_ERROR(ERROR_DISCONNECTED,
                 "Camera subsystem is not available");
     }
@@ -460,170 +547,85 @@
                 "CameraId is not valid");
     }
 
-    struct camera_info info;
-    Status rc = filterGetInfoErrorCode(
-        mModule->getCameraInfo(cameraId, &info));
+    Status ret = Status::ok();
+    if (mModule != nullptr) {
+        struct camera_info info;
+        ret = filterGetInfoErrorCode(mModule->getCameraInfo(cameraId, &info));
 
-    if (rc.isOk()) {
-        cameraInfo->facing = info.facing;
-        cameraInfo->orientation = info.orientation;
-        // CameraInfo is for android.hardware.Camera which does not
-        // support external camera facing. The closest approximation would be
-        // front camera.
-        if (cameraInfo->facing == CAMERA_FACING_EXTERNAL) {
-            cameraInfo->facing = CAMERA_FACING_FRONT;
+        if (ret.isOk()) {
+            cameraInfo->facing = info.facing;
+            cameraInfo->orientation = info.orientation;
+            // CameraInfo is for android.hardware.Camera which does not
+            // support external camera facing. The closest approximation would be
+            // front camera.
+            if (cameraInfo->facing == CAMERA_FACING_EXTERNAL) {
+                cameraInfo->facing = hardware::CAMERA_FACING_FRONT;
+            }
+        }
+    } else {
+        status_t err = mCameraProviderManager->getCameraInfo(std::to_string(cameraId), cameraInfo);
+        if (err != OK) {
+            ret = STATUS_ERROR_FMT(ERROR_INVALID_OPERATION,
+                    "Error retrieving camera info from device %d: %s (%d)", cameraId,
+                    strerror(-err), err);
         }
     }
-    return rc;
+    return ret;
 }
 
 int CameraService::cameraIdToInt(const String8& cameraId) {
-    errno = 0;
-    size_t pos = 0;
-    int ret = stoi(std::string{cameraId.string()}, &pos);
-    if (errno != 0 || pos != cameraId.size()) {
+    int id;
+    bool success = base::ParseInt(cameraId.string(), &id, 0);
+    if (!success) {
         return -1;
     }
-    return ret;
+    return id;
 }
 
-Status CameraService::generateShimMetadata(int cameraId, /*out*/CameraMetadata* cameraInfo) {
-    ATRACE_CALL();
-
-    Status ret = Status::ok();
-
-    struct CameraInfo info;
-    if (!(ret = getCameraInfo(cameraId, &info)).isOk()) {
-        return ret;
-    }
-
-    CameraMetadata shimInfo;
-    int32_t orientation = static_cast<int32_t>(info.orientation);
-    status_t rc;
-    if ((rc = shimInfo.update(ANDROID_SENSOR_ORIENTATION, &orientation, 1)) != OK) {
-        return STATUS_ERROR_FMT(ERROR_INVALID_OPERATION,
-                "Error updating metadata: %d (%s)", rc, strerror(-rc));
-    }
-
-    uint8_t facing = (info.facing == CAMERA_FACING_FRONT) ?
-            ANDROID_LENS_FACING_FRONT : ANDROID_LENS_FACING_BACK;
-    if ((rc = shimInfo.update(ANDROID_LENS_FACING, &facing, 1)) != OK) {
-        return STATUS_ERROR_FMT(ERROR_INVALID_OPERATION,
-                "Error updating metadata: %d (%s)", rc, strerror(-rc));
-    }
-
-    CameraParameters shimParams;
-    if (!(ret = getLegacyParametersLazy(cameraId, /*out*/&shimParams)).isOk()) {
-        // Error logged by callee
-        return ret;
-    }
-
-    Vector<Size> sizes;
-    Vector<Size> jpegSizes;
-    Vector<int32_t> formats;
-    {
-        shimParams.getSupportedPreviewSizes(/*out*/sizes);
-        shimParams.getSupportedPreviewFormats(/*out*/formats);
-        shimParams.getSupportedPictureSizes(/*out*/jpegSizes);
-    }
-
-    // Always include IMPLEMENTATION_DEFINED
-    formats.add(HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED);
-
-    const size_t INTS_PER_CONFIG = 4;
-
-    // Build available stream configurations metadata
-    size_t streamConfigSize = (sizes.size() * formats.size() + jpegSizes.size()) * INTS_PER_CONFIG;
-
-    Vector<int32_t> streamConfigs;
-    streamConfigs.setCapacity(streamConfigSize);
-
-    for (size_t i = 0; i < formats.size(); ++i) {
-        for (size_t j = 0; j < sizes.size(); ++j) {
-            streamConfigs.add(formats[i]);
-            streamConfigs.add(sizes[j].width);
-            streamConfigs.add(sizes[j].height);
-            streamConfigs.add(ANDROID_SCALER_AVAILABLE_STREAM_CONFIGURATIONS_OUTPUT);
-        }
-    }
-
-    for (size_t i = 0; i < jpegSizes.size(); ++i) {
-        streamConfigs.add(HAL_PIXEL_FORMAT_BLOB);
-        streamConfigs.add(jpegSizes[i].width);
-        streamConfigs.add(jpegSizes[i].height);
-        streamConfigs.add(ANDROID_SCALER_AVAILABLE_STREAM_CONFIGURATIONS_OUTPUT);
-    }
-
-    if ((rc = shimInfo.update(ANDROID_SCALER_AVAILABLE_STREAM_CONFIGURATIONS,
-            streamConfigs.array(), streamConfigSize)) != OK) {
-        return STATUS_ERROR_FMT(ERROR_INVALID_OPERATION,
-                "Error updating metadata: %d (%s)", rc, strerror(-rc));
-    }
-
-    int64_t fakeMinFrames[0];
-    // TODO: Fixme, don't fake min frame durations.
-    if ((rc = shimInfo.update(ANDROID_SCALER_AVAILABLE_MIN_FRAME_DURATIONS,
-            fakeMinFrames, 0)) != OK) {
-        return STATUS_ERROR_FMT(ERROR_INVALID_OPERATION,
-                "Error updating metadata: %d (%s)", rc, strerror(-rc));
-    }
-
-    int64_t fakeStalls[0];
-    // TODO: Fixme, don't fake stall durations.
-    if ((rc = shimInfo.update(ANDROID_SCALER_AVAILABLE_STALL_DURATIONS,
-            fakeStalls, 0)) != OK) {
-        return STATUS_ERROR_FMT(ERROR_INVALID_OPERATION,
-                "Error updating metadata: %d (%s)", rc, strerror(-rc));
-    }
-
-    *cameraInfo = shimInfo;
-    return ret;
-}
-
-Status CameraService::getCameraCharacteristics(int cameraId,
-                                                CameraMetadata* cameraInfo) {
+Status CameraService::getCameraCharacteristics(const String16& cameraId,
+        CameraMetadata* cameraInfo) {
     ATRACE_CALL();
     if (!cameraInfo) {
         ALOGE("%s: cameraInfo is NULL", __FUNCTION__);
         return STATUS_ERROR(ERROR_ILLEGAL_ARGUMENT, "cameraInfo is NULL");
     }
 
-    if (!mModule) {
-        ALOGE("%s: camera hardware module doesn't exist", __FUNCTION__);
+    if (!mInitialized) {
+        ALOGE("%s: Camera HAL couldn't be initialized", __FUNCTION__);
         return STATUS_ERROR(ERROR_DISCONNECTED,
                 "Camera subsystem is not available");;
     }
 
-    if (cameraId < 0 || cameraId >= mNumberOfCameras) {
-        ALOGE("%s: Invalid camera id: %d", __FUNCTION__, cameraId);
-        return STATUS_ERROR_FMT(ERROR_ILLEGAL_ARGUMENT,
-                "Invalid camera id: %d", cameraId);
-    }
+    Status ret{};
 
-    int facing;
-    Status ret;
-    if (mModule->getModuleApiVersion() < CAMERA_MODULE_API_VERSION_2_0 ||
-            getDeviceVersion(cameraId, &facing) < CAMERA_DEVICE_API_VERSION_3_0) {
-        /**
-         * Backwards compatibility mode for old HALs:
-         * - Convert CameraInfo into static CameraMetadata properties.
-         * - Retrieve cached CameraParameters for this camera.  If none exist,
-         *   attempt to open CameraClient and retrieve the CameraParameters.
-         * - Convert cached CameraParameters into static CameraMetadata
-         *   properties.
-         */
-        ALOGI("%s: Switching to HAL1 shim implementation...", __FUNCTION__);
+    if (mModule != nullptr) {
+        int id = cameraIdToInt(String8(cameraId));
 
-        ret = generateShimMetadata(cameraId, cameraInfo);
-    } else {
-        /**
-         * Normal HAL 2.1+ codepath.
-         */
+        if (id < 0 || id >= mNumberOfCameras) {
+            ALOGE("%s: Invalid camera id: %d", __FUNCTION__, id);
+            return STATUS_ERROR_FMT(ERROR_ILLEGAL_ARGUMENT,
+                    "Invalid camera id: %d", id);
+        }
+
+        int version = getDeviceVersion(String8(cameraId));
+        if (version < CAMERA_DEVICE_API_VERSION_3_0) {
+            return STATUS_ERROR_FMT(ERROR_ILLEGAL_ARGUMENT, "Can't get camera characteristics"
+                    " for devices with HAL version < 3.0, %d is version %x", id, version);
+        }
+
         struct camera_info info;
-        ret = filterGetInfoErrorCode(mModule->getCameraInfo(cameraId, &info));
+        ret = filterGetInfoErrorCode(mModule->getCameraInfo(id, &info));
         if (ret.isOk()) {
             *cameraInfo = info.static_camera_characteristics;
         }
+    } else {
+        status_t res = mCameraProviderManager->getCameraCharacteristics(
+                String8(cameraId).string(), cameraInfo);
+        if (res != OK) {
+            return STATUS_ERROR_FMT(ERROR_INVALID_OPERATION, "Unable to retrieve camera "
+                    "characteristics for device %s: %s (%d)", String8(cameraId).string(),
+                    strerror(-res), res);
+        }
     }
 
     return ret;
@@ -644,28 +646,12 @@
     return String8(formattedTime);
 }
 
-int CameraService::getCameraPriorityFromProcState(int procState) {
-    // Find the priority for the camera usage based on the process state.  Higher priority clients
-    // win for evictions.
-    if (procState < 0) {
-        ALOGE("%s: Received invalid process state %d from ActivityManagerService!", __FUNCTION__,
-                procState);
-        return -1;
-    }
-    // Treat sleeping TOP processes the same as regular TOP processes, for
-    // access priority.  This is important for lock-screen camera launch scenarios
-    if (procState == PROCESS_STATE_TOP_SLEEPING) {
-        procState = PROCESS_STATE_TOP;
-    }
-    return INT_MAX - procState;
-}
-
 Status CameraService::getCameraVendorTagDescriptor(
         /*out*/
         hardware::camera2::params::VendorTagDescriptor* desc) {
     ATRACE_CALL();
-    if (!mModule) {
-        ALOGE("%s: camera hardware module doesn't exist", __FUNCTION__);
+    if (!mInitialized) {
+        ALOGE("%s: Camera HAL couldn't be initialized", __FUNCTION__);
         return STATUS_ERROR(ERROR_DISCONNECTED, "Camera subsystem not available");
     }
     sp<VendorTagDescriptor> globalDescriptor = VendorTagDescriptor::getGlobalVendorTagDescriptor();
@@ -675,24 +661,44 @@
     return Status::ok();
 }
 
-int CameraService::getDeviceVersion(int cameraId, int* facing) {
+int CameraService::getDeviceVersion(const String8& cameraId, int* facing) {
     ATRACE_CALL();
-    struct camera_info info;
-    if (mModule->getCameraInfo(cameraId, &info) != OK) {
-        return -1;
-    }
 
-    int deviceVersion;
-    if (mModule->getModuleApiVersion() >= CAMERA_MODULE_API_VERSION_2_0) {
-        deviceVersion = info.device_version;
+    int deviceVersion = 0;
+
+    if (mModule != nullptr) {
+        int id = cameraIdToInt(cameraId);
+        if (id < 0) return -1;
+
+        struct camera_info info;
+        if (mModule->getCameraInfo(id, &info) != OK) {
+            return -1;
+        }
+
+        if (mModule->getModuleApiVersion() >= CAMERA_MODULE_API_VERSION_2_0) {
+            deviceVersion = info.device_version;
+        } else {
+            deviceVersion = CAMERA_DEVICE_API_VERSION_1_0;
+        }
+
+        if (facing) {
+            *facing = info.facing;
+        }
     } else {
-        deviceVersion = CAMERA_DEVICE_API_VERSION_1_0;
-    }
+        status_t res;
+        hardware::hidl_version maxVersion{0,0};
+        res = mCameraProviderManager->getHighestSupportedVersion(cameraId.string(),
+                &maxVersion);
+        if (res != OK) return -1;
+        deviceVersion = HARDWARE_DEVICE_API_VERSION(maxVersion.get_major(), maxVersion.get_minor());
 
-    if (facing) {
-        *facing = info.facing;
+        hardware::CameraInfo info;
+        if (facing) {
+            res = mCameraProviderManager->getCameraInfo(cameraId.string(), &info);
+            if (res != OK) return -1;
+            *facing = info.facing;
+        }
     }
-
     return deviceVersion;
 }
 
@@ -700,10 +706,10 @@
     switch(err) {
         case NO_ERROR:
             return Status::ok();
-        case -EINVAL:
+        case BAD_VALUE:
             return STATUS_ERROR(ERROR_ILLEGAL_ARGUMENT,
                     "CameraId is not valid for HAL module");
-        case -ENODEV:
+        case NO_INIT:
             return STATUS_ERROR(ERROR_DISCONNECTED,
                     "Camera device not available");
         default:
@@ -715,6 +721,8 @@
 
 bool CameraService::setUpVendorTags() {
     ATRACE_CALL();
+    if (mModule == nullptr) return false;
+
     vendor_tag_ops_t vOps = vendor_tag_ops_t();
 
     // Check if vendor operations have been implemented
@@ -751,7 +759,7 @@
 }
 
 Status CameraService::makeClient(const sp<CameraService>& cameraService,
-        const sp<IInterface>& cameraCb, const String16& packageName, int cameraId,
+        const sp<IInterface>& cameraCb, const String16& packageName, const String8& cameraId,
         int facing, int clientPid, uid_t clientUid, int servicePid, bool legacyMode,
         int halVersion, int deviceVersion, apiLevel effectiveApiLevel,
         /*out*/sp<BasicClient>* client) {
@@ -763,13 +771,13 @@
           case CAMERA_DEVICE_API_VERSION_1_0:
             if (effectiveApiLevel == API_1) {  // Camera1 API route
                 sp<ICameraClient> tmp = static_cast<ICameraClient*>(cameraCb.get());
-                *client = new CameraClient(cameraService, tmp, packageName, cameraId, facing,
-                        clientPid, clientUid, getpid(), legacyMode);
+                *client = new CameraClient(cameraService, tmp, packageName, cameraIdToInt(cameraId),
+                        facing, clientPid, clientUid, getpid(), legacyMode);
             } else { // Camera2 API route
                 ALOGW("Camera using old HAL version: %d", deviceVersion);
                 return STATUS_ERROR_FMT(ERROR_DEPRECATED_HAL,
-                        "Camera device \"%d\" HAL version %d does not support camera2 API",
-                        cameraId, deviceVersion);
+                        "Camera device \"%s\" HAL version %d does not support camera2 API",
+                        cameraId.string(), deviceVersion);
             }
             break;
           case CAMERA_DEVICE_API_VERSION_3_0:
@@ -779,8 +787,8 @@
           case CAMERA_DEVICE_API_VERSION_3_4:
             if (effectiveApiLevel == API_1) { // Camera1 API route
                 sp<ICameraClient> tmp = static_cast<ICameraClient*>(cameraCb.get());
-                *client = new Camera2Client(cameraService, tmp, packageName, cameraId, facing,
-                        clientPid, clientUid, servicePid, legacyMode);
+                *client = new Camera2Client(cameraService, tmp, packageName, cameraIdToInt(cameraId),
+                        facing, clientPid, clientUid, servicePid, legacyMode);
             } else { // Camera2 API route
                 sp<hardware::camera2::ICameraDeviceCallbacks> tmp =
                         static_cast<hardware::camera2::ICameraDeviceCallbacks*>(cameraCb.get());
@@ -792,8 +800,8 @@
             // Should not be reachable
             ALOGE("Unknown camera device HAL version: %d", deviceVersion);
             return STATUS_ERROR_FMT(ERROR_INVALID_OPERATION,
-                    "Camera device \"%d\" has unknown HAL version %d",
-                    cameraId, deviceVersion);
+                    "Camera device \"%s\" has unknown HAL version %d",
+                    cameraId.string(), deviceVersion);
         }
     } else {
         // A particular HAL version is requested by caller. Create CameraClient
@@ -802,16 +810,16 @@
             halVersion == CAMERA_DEVICE_API_VERSION_1_0) {
             // Only support higher HAL version device opened as HAL1.0 device.
             sp<ICameraClient> tmp = static_cast<ICameraClient*>(cameraCb.get());
-            *client = new CameraClient(cameraService, tmp, packageName, cameraId, facing,
-                    clientPid, clientUid, servicePid, legacyMode);
+            *client = new CameraClient(cameraService, tmp, packageName, cameraIdToInt(cameraId),
+                    facing, clientPid, clientUid, servicePid, legacyMode);
         } else {
             // Other combinations (e.g. HAL3.x open as HAL2.x) are not supported yet.
             ALOGE("Invalid camera HAL version %x: HAL %x device can only be"
                     " opened as HAL %x device", halVersion, deviceVersion,
                     CAMERA_DEVICE_API_VERSION_1_0);
             return STATUS_ERROR_FMT(ERROR_ILLEGAL_ARGUMENT,
-                    "Camera device \"%d\" (HAL version %d) cannot be opened as HAL version %d",
-                    cameraId, deviceVersion, halVersion);
+                    "Camera device \"%s\" (HAL version %d) cannot be opened as HAL version %d",
+                    cameraId.string(), deviceVersion, halVersion);
         }
     }
     return Status::ok();
@@ -831,6 +839,66 @@
     return s;
 }
 
+int32_t CameraService::mapToInterface(TorchModeStatus status) {
+    int32_t serviceStatus = ICameraServiceListener::TORCH_STATUS_NOT_AVAILABLE;
+    switch (status) {
+        case TorchModeStatus::NOT_AVAILABLE:
+            serviceStatus = ICameraServiceListener::TORCH_STATUS_NOT_AVAILABLE;
+            break;
+        case TorchModeStatus::AVAILABLE_OFF:
+            serviceStatus = ICameraServiceListener::TORCH_STATUS_AVAILABLE_OFF;
+            break;
+        case TorchModeStatus::AVAILABLE_ON:
+            serviceStatus = ICameraServiceListener::TORCH_STATUS_AVAILABLE_ON;
+            break;
+        default:
+            ALOGW("Unknown new flash status: %d", status);
+    }
+    return serviceStatus;
+}
+
+CameraService::StatusInternal CameraService::mapToInternal(CameraDeviceStatus status) {
+    StatusInternal serviceStatus = StatusInternal::NOT_PRESENT;
+    switch (status) {
+        case CameraDeviceStatus::NOT_PRESENT:
+            serviceStatus = StatusInternal::NOT_PRESENT;
+            break;
+        case CameraDeviceStatus::PRESENT:
+            serviceStatus = StatusInternal::PRESENT;
+            break;
+        case CameraDeviceStatus::ENUMERATING:
+            serviceStatus = StatusInternal::ENUMERATING;
+            break;
+        default:
+            ALOGW("Unknown new HAL device status: %d", status);
+    }
+    return serviceStatus;
+}
+
+int32_t CameraService::mapToInterface(StatusInternal status) {
+    int32_t serviceStatus = ICameraServiceListener::STATUS_NOT_PRESENT;
+    switch (status) {
+        case StatusInternal::NOT_PRESENT:
+            serviceStatus = ICameraServiceListener::STATUS_NOT_PRESENT;
+            break;
+        case StatusInternal::PRESENT:
+            serviceStatus = ICameraServiceListener::STATUS_PRESENT;
+            break;
+        case StatusInternal::ENUMERATING:
+            serviceStatus = ICameraServiceListener::STATUS_ENUMERATING;
+            break;
+        case StatusInternal::NOT_AVAILABLE:
+            serviceStatus = ICameraServiceListener::STATUS_NOT_AVAILABLE;
+            break;
+        case StatusInternal::UNKNOWN:
+            serviceStatus = ICameraServiceListener::STATUS_UNKNOWN;
+            break;
+        default:
+            ALOGW("Unknown new internal device status: %d", status);
+    }
+    return serviceStatus;
+}
+
 Status CameraService::initializeShimMetadata(int cameraId) {
     int uid = getCallingUid();
 
@@ -942,7 +1010,7 @@
 
     int callingPid = getCallingPid();
 
-    if (!mModule) {
+    if (!mInitialized) {
         ALOGE("CameraService::connect X (PID %d) rejected (camera HAL module not loaded)",
                 callingPid);
         return STATUS_ERROR_FMT(ERROR_DISCONNECTED,
@@ -1042,12 +1110,12 @@
         return -ENODEV;
     }
 
-    int32_t currentStatus = cameraState->getStatus();
-    if (currentStatus == ICameraServiceListener::STATUS_NOT_PRESENT) {
+    StatusInternal currentStatus = cameraState->getStatus();
+    if (currentStatus == StatusInternal::NOT_PRESENT) {
         ALOGE("CameraService::connect X (PID %d) rejected (camera %s is not connected)",
                 callingPid, cameraId.string());
         return -ENODEV;
-    } else if (currentStatus == ICameraServiceListener::STATUS_ENUMERATING) {
+    } else if (currentStatus == StatusInternal::ENUMERATING) {
         ALOGE("CameraService::connect X (PID %d) rejected, (camera %s is initializing)",
                 callingPid, cameraId.string());
         return -EBUSY;
@@ -1123,20 +1191,24 @@
         std::vector<int> ownerPids(mActiveClientManager.getAllOwners());
         ownerPids.push_back(clientPid);
 
-        // Use the value +PROCESS_STATE_NONEXISTENT, to avoid taking
-        // address of PROCESS_STATE_NONEXISTENT as a reference argument
-        // for the vector constructor. PROCESS_STATE_NONEXISTENT does
-        // not have an out-of-class definition.
-        std::vector<int> priorities(ownerPids.size(), +PROCESS_STATE_NONEXISTENT);
+        std::vector<int> priorityScores(ownerPids.size());
+        std::vector<int> states(ownerPids.size());
 
-        // Get priorites of all active PIDs
-        ProcessInfoService::getProcessStatesFromPids(ownerPids.size(), &ownerPids[0],
-                /*out*/&priorities[0]);
+        // Get priority scores of all active PIDs
+        status_t err = ProcessInfoService::getProcessStatesScoresFromPids(
+                ownerPids.size(), &ownerPids[0], /*out*/&states[0],
+                /*out*/&priorityScores[0]);
+        if (err != OK) {
+            ALOGE("%s: Priority score query failed: %d",
+                  __FUNCTION__, err);
+            return err;
+        }
 
         // Update all active clients' priorities
-        std::map<int,int> pidToPriorityMap;
+        std::map<int,resource_policy::ClientPriority> pidToPriorityMap;
         for (size_t i = 0; i < ownerPids.size() - 1; i++) {
-            pidToPriorityMap.emplace(ownerPids[i], getCameraPriorityFromProcState(priorities[i]));
+            pidToPriorityMap.emplace(ownerPids[i],
+                    resource_policy::ClientPriority(priorityScores[i], states[i]));
         }
         mActiveClientManager.updatePriorities(pidToPriorityMap);
 
@@ -1153,7 +1225,9 @@
         clientDescriptor = CameraClientManager::makeClientDescriptor(cameraId,
                 sp<BasicClient>{nullptr}, static_cast<int32_t>(state->getCost()),
                 state->getConflicting(),
-                getCameraPriorityFromProcState(priorities[priorities.size() - 1]), clientPid);
+                priorityScores[priorityScores.size() - 1],
+                clientPid,
+                states[states.size() - 1]);
 
         // Find clients that would be evicted
         auto evicted = mActiveClientManager.wouldEvict(clientDescriptor);
@@ -1170,19 +1244,22 @@
                     mActiveClientManager.getIncompatibleClients(clientDescriptor);
 
             String8 msg = String8::format("%s : DENIED connect device %s client for package %s "
-                    "(PID %d, priority %d) due to eviction policy", curTime.string(),
+                    "(PID %d, score %d state %d) due to eviction policy", curTime.string(),
                     cameraId.string(), packageName.string(), clientPid,
-                    getCameraPriorityFromProcState(priorities[priorities.size() - 1]));
+                    priorityScores[priorityScores.size() - 1],
+                    states[states.size() - 1]);
 
             for (auto& i : incompatibleClients) {
                 msg.appendFormat("\n   - Blocked by existing device %s client for package %s"
-                        "(PID %" PRId32 ", priority %" PRId32 ")", i->getKey().string(),
-                        String8{i->getValue()->getPackageName()}.string(), i->getOwnerId(),
-                        i->getPriority());
+                        "(PID %" PRId32 ", score %" PRId32 ", state %" PRId32 ")",
+                        i->getKey().string(),
+                        String8{i->getValue()->getPackageName()}.string(),
+                        i->getOwnerId(), i->getPriority().getScore(),
+                        i->getPriority().getState());
                 ALOGE("   Conflicts with: Device %s, client package %s (PID %"
-                        PRId32 ", priority %" PRId32 ")", i->getKey().string(),
+                        PRId32 ", score %" PRId32 ", state %" PRId32 ")", i->getKey().string(),
                         String8{i->getValue()->getPackageName()}.string(), i->getOwnerId(),
-                        i->getPriority());
+                        i->getPriority().getScore(), i->getPriority().getState());
             }
 
             // Log the client's attempt
@@ -1210,12 +1287,14 @@
 
             // Log the clients evicted
             logEvent(String8::format("EVICT device %s client held by package %s (PID"
-                    " %" PRId32 ", priority %" PRId32 ")\n   - Evicted by device %s client for"
-                    " package %s (PID %d, priority %" PRId32 ")",
+                    " %" PRId32 ", score %" PRId32 ", state %" PRId32 ")\n - Evicted by device %s client for"
+                    " package %s (PID %d, score %" PRId32 ", state %" PRId32 ")",
                     i->getKey().string(), String8{clientSp->getPackageName()}.string(),
-                    i->getOwnerId(), i->getPriority(), cameraId.string(),
+                    i->getOwnerId(), i->getPriority().getScore(),
+                    i->getPriority().getState(), cameraId.string(),
                     packageName.string(), clientPid,
-                    getCameraPriorityFromProcState(priorities[priorities.size() - 1])));
+                    priorityScores[priorityScores.size() - 1],
+                    states[states.size() - 1]));
 
             // Notify the client of disconnection
             clientSp->notifyError(hardware::camera2::ICameraDeviceCallbacks::ERROR_CAMERA_DISCONNECTED,
@@ -1308,22 +1387,24 @@
 
     ATRACE_CALL();
     String8 id = String8::format("%d", cameraId);
-    int apiVersion = mModule->getModuleApiVersion();
-    if (halVersion != CAMERA_HAL_API_VERSION_UNSPECIFIED &&
-            apiVersion < CAMERA_MODULE_API_VERSION_2_3) {
-        /*
-         * Either the HAL version is unspecified in which case this just creates
-         * a camera client selected by the latest device version, or
-         * it's a particular version in which case the HAL must supported
-         * the open_legacy call
-         */
-        String8 msg = String8::format("Camera HAL module version %x too old for connectLegacy!",
-                apiVersion);
-        ALOGE("%s: %s",
-                __FUNCTION__, msg.string());
-        logRejected(id, getCallingPid(), String8(clientPackageName),
-                msg);
-        return STATUS_ERROR(ERROR_ILLEGAL_ARGUMENT, msg.string());
+    if (mModule != nullptr) {
+        int apiVersion = mModule->getModuleApiVersion();
+        if (halVersion != CAMERA_HAL_API_VERSION_UNSPECIFIED &&
+                apiVersion < CAMERA_MODULE_API_VERSION_2_3) {
+            /*
+             * Either the HAL version is unspecified in which case this just creates
+             * a camera client selected by the latest device version, or
+             * it's a particular version in which case the HAL must supported
+             * the open_legacy call
+             */
+            String8 msg = String8::format("Camera HAL module version %x too old for connectLegacy!",
+                    apiVersion);
+            ALOGE("%s: %s",
+                    __FUNCTION__, msg.string());
+            logRejected(id, getCallingPid(), String8(clientPackageName),
+                    msg);
+            return STATUS_ERROR(ERROR_ILLEGAL_ARGUMENT, msg.string());
+        }
     }
 
     Status ret = Status::ok();
@@ -1345,7 +1426,7 @@
 
 Status CameraService::connectDevice(
         const sp<hardware::camera2::ICameraDeviceCallbacks>& cameraCb,
-        int cameraId,
+        const String16& cameraId,
         const String16& clientPackageName,
         int clientUid,
         /*out*/
@@ -1353,7 +1434,7 @@
 
     ATRACE_CALL();
     Status ret = Status::ok();
-    String8 id = String8::format("%d", cameraId);
+    String8 id = String8(cameraId);
     sp<CameraDeviceClient> client = nullptr;
     ret = connectHelper<hardware::camera2::ICameraDeviceCallbacks,CameraDeviceClient>(cameraCb, id,
             CAMERA_HAL_API_VERSION_UNSPECIFIED, clientPackageName,
@@ -1371,8 +1452,172 @@
     return ret;
 }
 
+template<class CALLBACK, class CLIENT>
+Status CameraService::connectHelper(const sp<CALLBACK>& cameraCb, const String8& cameraId,
+        int halVersion, const String16& clientPackageName, int clientUid, int clientPid,
+        apiLevel effectiveApiLevel, bool legacyMode, bool shimUpdateOnly,
+        /*out*/sp<CLIENT>& device) {
+    binder::Status ret = binder::Status::ok();
+
+    String8 clientName8(clientPackageName);
+
+    int originalClientPid = 0;
+
+    ALOGI("CameraService::connect call (PID %d \"%s\", camera ID %s) for HAL version %s and "
+            "Camera API version %d", clientPid, clientName8.string(), cameraId.string(),
+            (halVersion == -1) ? "default" : std::to_string(halVersion).c_str(),
+            static_cast<int>(effectiveApiLevel));
+
+    sp<CLIENT> client = nullptr;
+    {
+        // Acquire mServiceLock and prevent other clients from connecting
+        std::unique_ptr<AutoConditionLock> lock =
+                AutoConditionLock::waitAndAcquire(mServiceLockWrapper, DEFAULT_CONNECT_TIMEOUT_NS);
+
+        if (lock == nullptr) {
+            ALOGE("CameraService::connect (PID %d) rejected (too many other clients connecting)."
+                    , clientPid);
+            return STATUS_ERROR_FMT(ERROR_MAX_CAMERAS_IN_USE,
+                    "Cannot open camera %s for \"%s\" (PID %d): Too many other clients connecting",
+                    cameraId.string(), clientName8.string(), clientPid);
+        }
+
+        // Enforce client permissions and do basic sanity checks
+        if(!(ret = validateConnectLocked(cameraId, clientName8,
+                /*inout*/clientUid, /*inout*/clientPid, /*out*/originalClientPid)).isOk()) {
+            return ret;
+        }
+
+        // Check the shim parameters after acquiring lock, if they have already been updated and
+        // we were doing a shim update, return immediately
+        if (shimUpdateOnly) {
+            auto cameraState = getCameraState(cameraId);
+            if (cameraState != nullptr) {
+                if (!cameraState->getShimParams().isEmpty()) return ret;
+            }
+        }
+
+        status_t err;
+
+        sp<BasicClient> clientTmp = nullptr;
+        std::shared_ptr<resource_policy::ClientDescriptor<String8, sp<BasicClient>>> partial;
+        if ((err = handleEvictionsLocked(cameraId, originalClientPid, effectiveApiLevel,
+                IInterface::asBinder(cameraCb), clientName8, /*out*/&clientTmp,
+                /*out*/&partial)) != NO_ERROR) {
+            switch (err) {
+                case -ENODEV:
+                    return STATUS_ERROR_FMT(ERROR_DISCONNECTED,
+                            "No camera device with ID \"%s\" currently available",
+                            cameraId.string());
+                case -EBUSY:
+                    return STATUS_ERROR_FMT(ERROR_CAMERA_IN_USE,
+                            "Higher-priority client using camera, ID \"%s\" currently unavailable",
+                            cameraId.string());
+                default:
+                    return STATUS_ERROR_FMT(ERROR_INVALID_OPERATION,
+                            "Unexpected error %s (%d) opening camera \"%s\"",
+                            strerror(-err), err, cameraId.string());
+            }
+        }
+
+        if (clientTmp.get() != nullptr) {
+            // Handle special case for API1 MediaRecorder where the existing client is returned
+            device = static_cast<CLIENT*>(clientTmp.get());
+            return ret;
+        }
+
+        // give flashlight a chance to close devices if necessary.
+        mFlashlight->prepareDeviceOpen(cameraId);
+
+        int facing = -1;
+        int deviceVersion = getDeviceVersion(cameraId, /*out*/&facing);
+        if (facing == -1) {
+            ALOGE("%s: Unable to get camera device \"%s\"  facing", __FUNCTION__, cameraId.string());
+            return STATUS_ERROR_FMT(ERROR_INVALID_OPERATION,
+                    "Unable to get camera device \"%s\" facing", cameraId.string());
+        }
+
+        sp<BasicClient> tmp = nullptr;
+        if(!(ret = makeClient(this, cameraCb, clientPackageName, cameraId, facing, clientPid,
+                clientUid, getpid(), legacyMode, halVersion, deviceVersion, effectiveApiLevel,
+                /*out*/&tmp)).isOk()) {
+            return ret;
+        }
+        client = static_cast<CLIENT*>(tmp.get());
+
+        LOG_ALWAYS_FATAL_IF(client.get() == nullptr, "%s: CameraService in invalid state",
+                __FUNCTION__);
+
+        if (mModule != nullptr) {
+            err = client->initialize(mModule);
+        } else {
+            err = client->initialize(mCameraProviderManager);
+        }
+
+        if (err != OK) {
+            ALOGE("%s: Could not initialize client from HAL.", __FUNCTION__);
+            // Errors could be from the HAL module open call or from AppOpsManager
+            switch(err) {
+                case BAD_VALUE:
+                    return STATUS_ERROR_FMT(ERROR_ILLEGAL_ARGUMENT,
+                            "Illegal argument to HAL module for camera \"%s\"", cameraId.string());
+                case -EBUSY:
+                    return STATUS_ERROR_FMT(ERROR_CAMERA_IN_USE,
+                            "Camera \"%s\" is already open", cameraId.string());
+                case -EUSERS:
+                    return STATUS_ERROR_FMT(ERROR_MAX_CAMERAS_IN_USE,
+                            "Too many cameras already open, cannot open camera \"%s\"",
+                            cameraId.string());
+                case PERMISSION_DENIED:
+                    return STATUS_ERROR_FMT(ERROR_PERMISSION_DENIED,
+                            "No permission to open camera \"%s\"", cameraId.string());
+                case -EACCES:
+                    return STATUS_ERROR_FMT(ERROR_DISABLED,
+                            "Camera \"%s\" disabled by policy", cameraId.string());
+                case -ENODEV:
+                default:
+                    return STATUS_ERROR_FMT(ERROR_INVALID_OPERATION,
+                            "Failed to initialize camera \"%s\": %s (%d)", cameraId.string(),
+                            strerror(-err), err);
+            }
+        }
+
+        // Update shim paremeters for legacy clients
+        if (effectiveApiLevel == API_1) {
+            // Assume we have always received a Client subclass for API1
+            sp<Client> shimClient = reinterpret_cast<Client*>(client.get());
+            String8 rawParams = shimClient->getParameters();
+            CameraParameters params(rawParams);
+
+            auto cameraState = getCameraState(cameraId);
+            if (cameraState != nullptr) {
+                cameraState->setShimParams(params);
+            } else {
+                ALOGE("%s: Cannot update shim parameters for camera %s, no such device exists.",
+                        __FUNCTION__, cameraId.string());
+            }
+        }
+
+        if (shimUpdateOnly) {
+            // If only updating legacy shim parameters, immediately disconnect client
+            mServiceLock.unlock();
+            client->disconnect();
+            mServiceLock.lock();
+        } else {
+            // Otherwise, add client to active clients list
+            finishConnectLocked(client, partial);
+        }
+    } // lock is destroyed, allow further connect calls
+
+    // Important: release the mutex here so the client can call back into the service from its
+    // destructor (can be at the end of the call)
+    device = client;
+    return ret;
+}
+
 Status CameraService::setTorchMode(const String16& cameraId, bool enabled,
         const sp<IBinder>& clientBinder) {
+    Mutex::Autolock lock(mServiceLock);
 
     ATRACE_CALL();
     if (enabled && clientBinder == nullptr) {
@@ -1392,17 +1637,17 @@
                 "Camera ID \"%s\" is a not valid camera ID", id.string());
     }
 
-    int32_t cameraStatus = state->getStatus();
-    if (cameraStatus != ICameraServiceListener::STATUS_PRESENT &&
-            cameraStatus != ICameraServiceListener::STATUS_NOT_AVAILABLE) {
-        ALOGE("%s: camera id is invalid %s", __FUNCTION__, id.string());
+    StatusInternal cameraStatus = state->getStatus();
+    if (cameraStatus != StatusInternal::PRESENT &&
+            cameraStatus != StatusInternal::NOT_AVAILABLE) {
+        ALOGE("%s: camera id is invalid %s, status %d", __FUNCTION__, id.string(), (int)cameraStatus);
         return STATUS_ERROR_FMT(ERROR_ILLEGAL_ARGUMENT,
                 "Camera ID \"%s\" is a not valid camera ID", id.string());
     }
 
     {
         Mutex::Autolock al(mTorchStatusMutex);
-        int32_t status;
+        TorchModeStatus status;
         status_t err = getTorchStatusLocked(id, &status);
         if (err != OK) {
             if (err == NAME_NOT_FOUND) {
@@ -1416,8 +1661,8 @@
                     strerror(-err), err);
         }
 
-        if (status == ICameraServiceListener::TORCH_STATUS_NOT_AVAILABLE) {
-            if (cameraStatus == ICameraServiceListener::STATUS_NOT_AVAILABLE) {
+        if (status == TorchModeStatus::NOT_AVAILABLE) {
+            if (cameraStatus == StatusInternal::NOT_AVAILABLE) {
                 ALOGE("%s: torch mode of camera %s is not available because "
                         "camera is in use", __FUNCTION__, id.string());
                 return STATUS_ERROR_FMT(ERROR_CAMERA_IN_USE,
@@ -1506,7 +1751,9 @@
     return Status::ok();
 }
 
-Status CameraService::addListener(const sp<ICameraServiceListener>& listener) {
+Status CameraService::addListener(const sp<ICameraServiceListener>& listener,
+        /*out*/
+        std::vector<hardware::CameraStatus> *cameraStatuses) {
     ATRACE_CALL();
 
     ALOGV("%s: Add listener %p", __FUNCTION__, listener.get());
@@ -1531,25 +1778,23 @@
         mListenerList.push_back(listener);
     }
 
-
-    /* Immediately signal current status to this listener only */
+    /* Collect current devices and status */
     {
         Mutex::Autolock lock(mCameraStatesLock);
         for (auto& i : mCameraStates) {
-            // TODO: Update binder to use String16 for camera IDs and remove;
-            int id = cameraIdToInt(i.first);
-            if (id == -1) continue;
-
-            listener->onStatusChanged(i.second->getStatus(), id);
+            cameraStatuses->emplace_back(i.first, mapToInterface(i.second->getStatus()));
         }
     }
 
-    /* Immediately signal current torch status to this listener only */
+    /*
+     * Immediately signal current torch status to this listener only
+     * This may be a subset of all the devices, so don't include it in the response directly
+     */
     {
         Mutex::Autolock al(mTorchStatusMutex);
         for (size_t i = 0; i < mTorchStatusMap.size(); i++ ) {
             String16 id = String16(mTorchStatusMap.keyAt(i).string());
-            listener->onTorchStatusChanged(mTorchStatusMap.valueAt(i), id);
+            listener->onTorchStatusChanged(mapToInterface(mTorchStatusMap.valueAt(i)), id);
         }
     }
 
@@ -1610,10 +1855,13 @@
     return ret;
 }
 
-Status CameraService::supportsCameraApi(int cameraId, int apiVersion, bool *isSupported) {
+Status CameraService::supportsCameraApi(const String16& cameraId, int apiVersion,
+        /*out*/ bool *isSupported) {
     ATRACE_CALL();
 
-    ALOGV("%s: for camera ID = %d", __FUNCTION__, cameraId);
+    const String8 id = String8(cameraId);
+
+    ALOGV("%s: for camera ID = %s", __FUNCTION__, id.string());
 
     switch (apiVersion) {
         case API_VERSION_1:
@@ -1625,38 +1873,36 @@
             return STATUS_ERROR(ERROR_ILLEGAL_ARGUMENT, msg.string());
     }
 
-    int facing = -1;
-    int deviceVersion = getDeviceVersion(cameraId, &facing);
-
+    int deviceVersion = getDeviceVersion(id);
     switch(deviceVersion) {
         case CAMERA_DEVICE_API_VERSION_1_0:
         case CAMERA_DEVICE_API_VERSION_3_0:
         case CAMERA_DEVICE_API_VERSION_3_1:
             if (apiVersion == API_VERSION_2) {
-                ALOGV("%s: Camera id %d uses HAL version %d <3.2, doesn't support api2 without shim",
-                        __FUNCTION__, cameraId, deviceVersion);
+                ALOGV("%s: Camera id %s uses HAL version %d <3.2, doesn't support api2 without shim",
+                        __FUNCTION__, id.string(), deviceVersion);
                 *isSupported = false;
             } else { // if (apiVersion == API_VERSION_1) {
-                ALOGV("%s: Camera id %d uses older HAL before 3.2, but api1 is always supported",
-                        __FUNCTION__, cameraId);
+                ALOGV("%s: Camera id %s uses older HAL before 3.2, but api1 is always supported",
+                        __FUNCTION__, id.string());
                 *isSupported = true;
             }
             break;
         case CAMERA_DEVICE_API_VERSION_3_2:
         case CAMERA_DEVICE_API_VERSION_3_3:
         case CAMERA_DEVICE_API_VERSION_3_4:
-            ALOGV("%s: Camera id %d uses HAL3.2 or newer, supports api1/api2 directly",
-                    __FUNCTION__, cameraId);
+            ALOGV("%s: Camera id %s uses HAL3.2 or newer, supports api1/api2 directly",
+                    __FUNCTION__, id.string());
             *isSupported = true;
             break;
         case -1: {
-            String8 msg = String8::format("Unknown camera ID %d", cameraId);
+            String8 msg = String8::format("Unknown camera ID %s", id.string());
             ALOGE("%s: %s", __FUNCTION__, msg.string());
             return STATUS_ERROR(ERROR_ILLEGAL_ARGUMENT, msg.string());
         }
         default: {
-            String8 msg = String8::format("Unknown device version %d for device %d",
-                    deviceVersion, cameraId);
+            String8 msg = String8::format("Unknown device version %x for device %s",
+                    deviceVersion, id.string());
             ALOGE("%s: %s", __FUNCTION__, msg.string());
             return STATUS_ERROR(ERROR_INVALID_OPERATION, msg.string());
         }
@@ -1732,6 +1978,8 @@
  * Also check that the device HAL version is still in support
  */
 int CameraService::checkCameraCapabilities(int id, camera_info info, int *latestStrangeCameraId) {
+    if (mModule == nullptr) return NO_INIT;
+
     // device_version undefined in CAMERA_MODULE_API_VERSION_1_0,
     // All CAMERA_MODULE_API_VERSION_1_0 devices are backward-compatible
     if (mModule->getModuleApiVersion() >= CAMERA_MODULE_API_VERSION_2_0) {
@@ -1877,9 +2125,11 @@
 
         // Log the clients evicted
         logEvent(String8::format("EVICT device %s client held by package %s (PID %"
-                PRId32 ", priority %" PRId32 ")\n   - Evicted due to user switch.",
-                i->getKey().string(), String8{clientSp->getPackageName()}.string(),
-                i->getOwnerId(), i->getPriority()));
+                PRId32 ", score %" PRId32 ", state %" PRId32 ")\n   - Evicted due"
+                " to user switch.", i->getKey().string(),
+                String8{clientSp->getPackageName()}.string(),
+                i->getOwnerId(), i->getPriority().getScore(),
+                i->getPriority().getState()));
 
     }
 
@@ -1931,8 +2181,11 @@
         const std::set<userid_t>& newUserIds) {
     String8 newUsers = toString(newUserIds);
     String8 oldUsers = toString(oldUserIds);
+    if (oldUsers.size() == 0) {
+        oldUsers = "<None>";
+    }
     // Log the new and old users
-    logEvent(String8::format("USER_SWITCH previous allowed users: %s , current allowed users: %s",
+    logEvent(String8::format("USER_SWITCH previous allowed user IDs: %s, current allowed user IDs: %s",
             oldUsers.string(), newUsers.string()));
 }
 
@@ -2041,24 +2294,25 @@
 CameraService::Client::Client(const sp<CameraService>& cameraService,
         const sp<ICameraClient>& cameraClient,
         const String16& clientPackageName,
-        int cameraId, int cameraFacing,
+        const String8& cameraIdStr, int cameraFacing,
         int clientPid, uid_t clientUid,
         int servicePid) :
         CameraService::BasicClient(cameraService,
                 IInterface::asBinder(cameraClient),
                 clientPackageName,
-                cameraId, cameraFacing,
+                cameraIdStr, cameraFacing,
                 clientPid, clientUid,
-                servicePid)
+                servicePid),
+        mCameraId(CameraService::cameraIdToInt(cameraIdStr))
 {
     int callingPid = getCallingPid();
-    LOG1("Client::Client E (pid %d, id %d)", callingPid, cameraId);
+    LOG1("Client::Client E (pid %d, id %d)", callingPid, mCameraId);
 
     mRemoteCallback = cameraClient;
 
     cameraService->loadSound();
 
-    LOG1("Client::Client X (pid %d, id %d)", callingPid, cameraId);
+    LOG1("Client::Client X (pid %d, id %d)", callingPid, mCameraId);
 }
 
 // tear down the client
@@ -2066,26 +2320,28 @@
     ALOGV("~Client");
     mDestructionStarted = true;
 
-    mCameraService->releaseSound();
+    sCameraService->releaseSound();
     // unconditionally disconnect. function is idempotent
     Client::disconnect();
 }
 
+sp<CameraService> CameraService::BasicClient::BasicClient::sCameraService;
+
 CameraService::BasicClient::BasicClient(const sp<CameraService>& cameraService,
         const sp<IBinder>& remoteCallback,
         const String16& clientPackageName,
-        int cameraId, int cameraFacing,
+        const String8& cameraIdStr, int cameraFacing,
         int clientPid, uid_t clientUid,
         int servicePid):
-        mClientPackageName(clientPackageName), mDisconnected(false)
+        mCameraIdStr(cameraIdStr), mCameraFacing(cameraFacing),
+        mClientPackageName(clientPackageName), mClientPid(clientPid), mClientUid(clientUid),
+        mServicePid(servicePid),
+        mDisconnected(false),
+        mRemoteBinder(remoteCallback)
 {
-    mCameraService = cameraService;
-    mRemoteBinder = remoteCallback;
-    mCameraId = cameraId;
-    mCameraFacing = cameraFacing;
-    mClientPid = clientPid;
-    mClientUid = clientUid;
-    mServicePid = servicePid;
+    if (sCameraService == nullptr) {
+        sCameraService = cameraService;
+    }
     mOpsActive = false;
     mDestructionStarted = false;
 
@@ -2133,19 +2389,20 @@
     }
     mDisconnected = true;
 
-    mCameraService->removeByClient(this);
-    mCameraService->logDisconnected(String8::format("%d", mCameraId), mClientPid,
+    sCameraService->removeByClient(this);
+    sCameraService->logDisconnected(mCameraIdStr, mClientPid,
             String8(mClientPackageName));
 
     sp<IBinder> remote = getRemote();
     if (remote != nullptr) {
-        remote->unlinkToDeath(mCameraService);
+        remote->unlinkToDeath(sCameraService);
     }
 
     finishCameraOps();
     // Notify flashlight that a camera device is closed.
-    mCameraService->mFlashlight->deviceClosed(String8::format("%d", mCameraId));
-    ALOGI("%s: Disconnected client for camera %d for PID %d", __FUNCTION__, mCameraId, mClientPid);
+    sCameraService->mFlashlight->deviceClosed(mCameraIdStr);
+    ALOGI("%s: Disconnected client for camera %s for PID %d", __FUNCTION__, mCameraIdStr.string(),
+            mClientPid);
 
     // client shouldn't be able to call into us anymore
     mClientPid = 0;
@@ -2197,14 +2454,14 @@
             mClientUid, mClientPackageName);
 
     if (res == AppOpsManager::MODE_ERRORED) {
-        ALOGI("Camera %d: Access for \"%s\" has been revoked",
-                mCameraId, String8(mClientPackageName).string());
+        ALOGI("Camera %s: Access for \"%s\" has been revoked",
+                mCameraIdStr.string(), String8(mClientPackageName).string());
         return PERMISSION_DENIED;
     }
 
     if (res == AppOpsManager::MODE_IGNORED) {
-        ALOGI("Camera %d: Access for \"%s\" has been restricted",
-                mCameraId, String8(mClientPackageName).string());
+        ALOGI("Camera %s: Access for \"%s\" has been restricted",
+                mCameraIdStr.string(), String8(mClientPackageName).string());
         // Return the same error as for device policy manager rejection
         return -EACCES;
     }
@@ -2212,12 +2469,11 @@
     mOpsActive = true;
 
     // Transition device availability listeners from PRESENT -> NOT_AVAILABLE
-    mCameraService->updateStatus(ICameraServiceListener::STATUS_NOT_AVAILABLE,
-            String8::format("%d", mCameraId));
+    sCameraService->updateStatus(StatusInternal::NOT_AVAILABLE, mCameraIdStr);
 
     // Transition device state to OPEN
-    mCameraService->updateProxyDeviceState(ICameraServiceProxy::CAMERA_STATE_OPEN,
-            String8::format("%d", mCameraId));
+    sCameraService->updateProxyDeviceState(ICameraServiceProxy::CAMERA_STATE_OPEN,
+            mCameraIdStr);
 
     return OK;
 }
@@ -2232,16 +2488,16 @@
                 mClientPackageName);
         mOpsActive = false;
 
-        std::initializer_list<int32_t> rejected = {ICameraServiceListener::STATUS_NOT_PRESENT,
-                ICameraServiceListener::STATUS_ENUMERATING};
+        std::initializer_list<StatusInternal> rejected = {StatusInternal::PRESENT,
+                StatusInternal::ENUMERATING};
 
         // Transition to PRESENT if the camera is not in either of the rejected states
-        mCameraService->updateStatus(ICameraServiceListener::STATUS_PRESENT,
-                String8::format("%d", mCameraId), rejected);
+        sCameraService->updateStatus(StatusInternal::PRESENT,
+                mCameraIdStr, rejected);
 
         // Transition device state to CLOSED
-        mCameraService->updateProxyDeviceState(ICameraServiceProxy::CAMERA_STATE_CLOSED,
-                String8::format("%d", mCameraId));
+        sCameraService->updateProxyDeviceState(ICameraServiceProxy::CAMERA_STATE_CLOSED,
+                mCameraIdStr);
     }
     // Always stop watching, even if no camera op is active
     if (mOpsCallback != NULL) {
@@ -2273,7 +2529,7 @@
             "UNKNOWN");
 
     if (res != AppOpsManager::MODE_ALLOWED) {
-        ALOGI("Camera %d: Access for \"%s\" revoked", mCameraId,
+        ALOGI("Camera %s: Access for \"%s\" revoked", mCameraIdStr.string(),
                 myName.string());
         // Reset the client PID to allow server-initiated disconnect,
         // and to prevent further calls by client.
@@ -2286,17 +2542,6 @@
 
 // ----------------------------------------------------------------------------
 
-// Provide client strong pointer for callbacks.
-sp<CameraService::Client> CameraService::Client::getClientFromCookie(void* user) {
-    String8 cameraId = String8::format("%d", (int)(intptr_t) user);
-    auto clientDescriptor = gCameraService->mActiveClientManager.get(cameraId);
-    if (clientDescriptor != nullptr) {
-        return sp<Client>{
-                static_cast<Client*>(clientDescriptor->getValue().get())};
-    }
-    return sp<Client>{nullptr};
-}
-
 void CameraService::Client::notifyError(int32_t errorCode,
         const CaptureResultExtras& resultExtras) {
     (void) errorCode;
@@ -2336,11 +2581,11 @@
 
 CameraService::CameraState::CameraState(const String8& id, int cost,
         const std::set<String8>& conflicting) : mId(id),
-        mStatus(ICameraServiceListener::STATUS_PRESENT), mCost(cost), mConflicting(conflicting) {}
+        mStatus(StatusInternal::PRESENT), mCost(cost), mConflicting(conflicting) {}
 
 CameraService::CameraState::~CameraState() {}
 
-int32_t CameraService::CameraState::getStatus() const {
+CameraService::StatusInternal CameraService::CameraState::getStatus() const {
     Mutex::Autolock lock(mStatusLock);
     return mStatus;
 }
@@ -2420,7 +2665,8 @@
         String8 key = i->getKey();
         int32_t cost = i->getCost();
         int32_t pid = i->getOwnerId();
-        int32_t priority = i->getPriority();
+        int32_t score = i->getPriority().getScore();
+        int32_t state = i->getPriority().getState();
         auto conflicting = i->getConflicting();
         auto clientSp = i->getValue();
         String8 packageName;
@@ -2430,8 +2676,8 @@
             uid_t clientUid = clientSp->getClientUid();
             clientUserId = multiuser_get_user_id(clientUid);
         }
-        ret.appendFormat("\n(Camera ID: %s, Cost: %" PRId32 ", PID: %" PRId32 ", Priority: %"
-                PRId32 ", ", key.string(), cost, pid, priority);
+        ret.appendFormat("\n(Camera ID: %s, Cost: %" PRId32 ", PID: %" PRId32 ", Score: %"
+                PRId32 ", State: %" PRId32, key.string(), cost, pid, score, state);
 
         if (clientSp.get() != nullptr) {
             ret.appendFormat("User Id: %d, ", clientUserId);
@@ -2453,16 +2699,18 @@
 
 CameraService::DescriptorPtr CameraService::CameraClientManager::makeClientDescriptor(
         const String8& key, const sp<BasicClient>& value, int32_t cost,
-        const std::set<String8>& conflictingKeys, int32_t priority, int32_t ownerId) {
+        const std::set<String8>& conflictingKeys, int32_t score, int32_t ownerId,
+        int32_t state) {
 
     return std::make_shared<resource_policy::ClientDescriptor<String8, sp<BasicClient>>>(
-            key, value, cost, conflictingKeys, priority, ownerId);
+            key, value, cost, conflictingKeys, score, ownerId, state);
 }
 
 CameraService::DescriptorPtr CameraService::CameraClientManager::makeClientDescriptor(
         const sp<BasicClient>& value, const CameraService::DescriptorPtr& partial) {
     return makeClientDescriptor(partial->getKey(), value, partial->getCost(),
-            partial->getConflicting(), partial->getPriority(), partial->getOwnerId());
+            partial->getConflicting(), partial->getPriority().getScore(),
+            partial->getOwnerId(), partial->getPriority().getState());
 }
 
 // ----------------------------------------------------------------------------
@@ -2486,175 +2734,164 @@
 status_t CameraService::dump(int fd, const Vector<String16>& args) {
     ATRACE_CALL();
 
-    String8 result("Dump of the Camera Service:\n");
     if (checkCallingPermission(String16("android.permission.DUMP")) == false) {
-        result = result.format("Permission Denial: "
-                "can't dump CameraService from pid=%d, uid=%d\n",
+        dprintf(fd, "Permission Denial: can't dump CameraService from pid=%d, uid=%d\n",
                 getCallingPid(),
                 getCallingUid());
-        write(fd, result.string(), result.size());
-    } else {
-        bool locked = tryLock(mServiceLock);
-        // failed to lock - CameraService is probably deadlocked
-        if (!locked) {
-            result.append("CameraService may be deadlocked\n");
-            write(fd, result.string(), result.size());
-        }
+        return NO_ERROR;
+    }
+    bool locked = tryLock(mServiceLock);
+    // failed to lock - CameraService is probably deadlocked
+    if (!locked) {
+        dprintf(fd, "!! CameraService may be deadlocked !!\n");
+    }
 
-        bool hasClient = false;
-        if (!mModule) {
-            result = String8::format("No camera module available!\n");
-            write(fd, result.string(), result.size());
+    if (!mInitialized) {
+        dprintf(fd, "!! No camera HAL available !!\n");
 
-            // Dump event log for error information
-            dumpEventLog(fd);
-
-            if (locked) mServiceLock.unlock();
-            return NO_ERROR;
-        }
-
-        result = String8::format("Camera module HAL API version: 0x%x\n", mModule->getHalApiVersion());
-        result.appendFormat("Camera module API version: 0x%x\n", mModule->getModuleApiVersion());
-        result.appendFormat("Camera module name: %s\n", mModule->getModuleName());
-        result.appendFormat("Camera module author: %s\n", mModule->getModuleAuthor());
-        result.appendFormat("Number of camera devices: %d\n", mNumberOfCameras);
-        result.appendFormat("Number of normal camera devices: %d\n", mNumberOfNormalCameras);
-        String8 activeClientString = mActiveClientManager.toString();
-        result.appendFormat("Active Camera Clients:\n%s", activeClientString.string());
-        result.appendFormat("Allowed users:\n%s\n", toString(mAllowedUsers).string());
-
-        sp<VendorTagDescriptor> desc = VendorTagDescriptor::getGlobalVendorTagDescriptor();
-        if (desc == NULL) {
-            result.appendFormat("Vendor tags left unimplemented.\n");
-        } else {
-            result.appendFormat("Vendor tag definitions:\n");
-        }
-
-        write(fd, result.string(), result.size());
-
-        if (desc != NULL) {
-            desc->dump(fd, /*verbosity*/2, /*indentation*/4);
-        }
-
+        // Dump event log for error information
         dumpEventLog(fd);
 
-        bool stateLocked = tryLock(mCameraStatesLock);
-        if (!stateLocked) {
-            result = String8::format("CameraStates in use, may be deadlocked\n");
-            write(fd, result.string(), result.size());
+        if (locked) mServiceLock.unlock();
+        return NO_ERROR;
+    }
+    dprintf(fd, "\n== Service global info: ==\n\n");
+    dprintf(fd, "Number of camera devices: %d\n", mNumberOfCameras);
+    dprintf(fd, "Number of normal camera devices: %d\n", mNumberOfNormalCameras);
+    String8 activeClientString = mActiveClientManager.toString();
+    dprintf(fd, "Active Camera Clients:\n%s", activeClientString.string());
+    dprintf(fd, "Allowed user IDs: %s\n", toString(mAllowedUsers).string());
+
+    dumpEventLog(fd);
+
+    bool stateLocked = tryLock(mCameraStatesLock);
+    if (!stateLocked) {
+        dprintf(fd, "CameraStates in use, may be deadlocked\n");
+    }
+
+    for (auto& state : mCameraStates) {
+        String8 cameraId = state.first;
+
+        dprintf(fd, "== Camera device %s dynamic info: ==\n", cameraId.string());
+
+        CameraParameters p = state.second->getShimParams();
+        if (!p.isEmpty()) {
+            dprintf(fd, "  Camera1 API shim is using parameters:\n        ");
+            p.dump(fd, args);
         }
 
-        for (auto& state : mCameraStates) {
-            String8 cameraId = state.first;
-            result = String8::format("Camera %s information:\n", cameraId.string());
-            camera_info info;
+        auto clientDescriptor = mActiveClientManager.get(cameraId);
+        if (clientDescriptor != nullptr) {
+            dprintf(fd, "  Device %s is open. Client instance dump:\n",
+                    cameraId.string());
+            dprintf(fd, "    Client priority score: %d state: %d\n",
+                    clientDescriptor->getPriority().getScore(),
+                    clientDescriptor->getPriority().getState());
+            dprintf(fd, "    Client PID: %d\n", clientDescriptor->getOwnerId());
 
-            // TODO: Change getCameraInfo + HAL to use String cameraIds
+            auto client = clientDescriptor->getValue();
+            dprintf(fd, "    Client package: %s\n",
+                    String8(client->getPackageName()).string());
+
+            client->dumpClient(fd, args);
+        } else {
+            dprintf(fd, "  Device %s is closed, no client instance\n",
+                    cameraId.string());
+        }
+
+        if (mModule != nullptr) {
+            dprintf(fd, "== Camera HAL device %s static information: ==\n", cameraId.string());
+
+            camera_info info;
             status_t rc = mModule->getCameraInfo(cameraIdToInt(cameraId), &info);
+            int deviceVersion = -1;
             if (rc != OK) {
-                result.appendFormat("  Error reading static information!\n");
-                write(fd, result.string(), result.size());
+                dprintf(fd, "  Error reading static information!\n");
             } else {
-                result.appendFormat("  Facing: %s\n",
+                dprintf(fd, "  Facing: %s\n",
                         info.facing == CAMERA_FACING_BACK ? "BACK" :
-                                info.facing == CAMERA_FACING_FRONT ? "FRONT" : "EXTERNAL");
-                result.appendFormat("  Orientation: %d\n", info.orientation);
-                int deviceVersion;
+                        info.facing == CAMERA_FACING_FRONT ? "FRONT" : "EXTERNAL");
+                dprintf(fd, "  Orientation: %d\n", info.orientation);
+
                 if (mModule->getModuleApiVersion() < CAMERA_MODULE_API_VERSION_2_0) {
                     deviceVersion = CAMERA_DEVICE_API_VERSION_1_0;
                 } else {
                     deviceVersion = info.device_version;
                 }
-
-                auto conflicting = state.second->getConflicting();
-                result.appendFormat("  Resource Cost: %d\n", state.second->getCost());
-                result.appendFormat("  Conflicting Devices:");
-                for (auto& id : conflicting) {
-                    result.appendFormat(" %s", id.string());
-                }
-                if (conflicting.size() == 0) {
-                    result.appendFormat(" NONE");
-                }
-                result.appendFormat("\n");
-
-                result.appendFormat("  Device version: %#x\n", deviceVersion);
-                if (deviceVersion >= CAMERA_DEVICE_API_VERSION_3_0) {
-                    result.appendFormat("  Device static metadata:\n");
-                    write(fd, result.string(), result.size());
-                    dump_indented_camera_metadata(info.static_camera_characteristics,
-                            fd, /*verbosity*/2, /*indentation*/4);
-                } else {
-                    write(fd, result.string(), result.size());
-                }
-
-                CameraParameters p = state.second->getShimParams();
-                if (!p.isEmpty()) {
-                    result = String8::format("  Camera1 API shim is using parameters:\n        ");
-                    write(fd, result.string(), result.size());
-                    p.dump(fd, args);
-                }
             }
 
-            auto clientDescriptor = mActiveClientManager.get(cameraId);
-            if (clientDescriptor == nullptr) {
-                result = String8::format("  Device %s is closed, no client instance\n",
-                        cameraId.string());
-                write(fd, result.string(), result.size());
-                continue;
+            auto conflicting = state.second->getConflicting();
+            dprintf(fd, "  Resource Cost: %d\n", state.second->getCost());
+            dprintf(fd, "  Conflicting Devices:");
+            for (auto& id : conflicting) {
+                dprintf(fd, " %s", id.string());
             }
-            hasClient = true;
-            result = String8::format("  Device %s is open. Client instance dump:\n\n",
-                    cameraId.string());
-            result.appendFormat("Client priority level: %d\n", clientDescriptor->getPriority());
-            result.appendFormat("Client PID: %d\n", clientDescriptor->getOwnerId());
+            if (conflicting.size() == 0) {
+                dprintf(fd, " NONE");
+            }
+            dprintf(fd, "\n");
 
-            auto client = clientDescriptor->getValue();
-            result.appendFormat("Client package: %s\n",
-                    String8(client->getPackageName()).string());
-            write(fd, result.string(), result.size());
-
-            client->dumpClient(fd, args);
+            dprintf(fd, "  Device version: %#x\n", deviceVersion);
+            if (deviceVersion >= CAMERA_DEVICE_API_VERSION_3_0) {
+                dprintf(fd, "  Device static metadata:\n");
+                dump_indented_camera_metadata(info.static_camera_characteristics,
+                        fd, /*verbosity*/2, /*indentation*/4);
+            }
         }
 
-        if (stateLocked) mCameraStatesLock.unlock();
+    }
 
-        if (!hasClient) {
-            result = String8::format("\nNo active camera clients yet.\n");
-            write(fd, result.string(), result.size());
-        }
+    if (stateLocked) mCameraStatesLock.unlock();
 
-        if (locked) mServiceLock.unlock();
+    if (locked) mServiceLock.unlock();
 
-        // Dump camera traces if there were any
-        write(fd, "\n", 1);
-        camera3::CameraTraces::dump(fd, args);
+    if (mModule == nullptr) {
+        mCameraProviderManager->dump(fd, args);
+    } else {
+        dprintf(fd, "\n== Camera Module HAL static info: ==\n");
+        dprintf(fd, "Camera module HAL API version: 0x%x\n", mModule->getHalApiVersion());
+        dprintf(fd, "Camera module API version: 0x%x\n", mModule->getModuleApiVersion());
+        dprintf(fd, "Camera module name: %s\n", mModule->getModuleName());
+        dprintf(fd, "Camera module author: %s\n", mModule->getModuleAuthor());
+    }
 
-        // Process dump arguments, if any
-        int n = args.size();
-        String16 verboseOption("-v");
-        String16 unreachableOption("--unreachable");
-        for (int i = 0; i < n; i++) {
-            if (args[i] == verboseOption) {
-                // change logging level
-                if (i + 1 >= n) continue;
-                String8 levelStr(args[i+1]);
-                int level = atoi(levelStr.string());
-                result = String8::format("\nSetting log level to %d.\n", level);
-                setLogLevel(level);
-                write(fd, result.string(), result.size());
-            } else if (args[i] == unreachableOption) {
-                // Dump memory analysis
-                // TODO - should limit be an argument parameter?
-                UnreachableMemoryInfo info;
-                bool success = GetUnreachableMemory(info, /*limit*/ 10000);
-                if (!success) {
-                    dprintf(fd, "\nUnable to dump unreachable memory. "
-                            "Try disabling SELinux enforcement.\n");
-                } else {
-                    dprintf(fd, "\nDumping unreachable memory:\n");
-                    std::string s = info.ToString(/*log_contents*/ true);
-                    write(fd, s.c_str(), s.size());
-                }
+    dprintf(fd, "\n== Vendor tags: ==\n\n");
+
+    sp<VendorTagDescriptor> desc = VendorTagDescriptor::getGlobalVendorTagDescriptor();
+    if (desc == NULL) {
+        dprintf(fd, "No vendor tags.\n");
+    } else {
+        desc->dump(fd, /*verbosity*/2, /*indentation*/2);
+    }
+
+    // Dump camera traces if there were any
+    dprintf(fd, "\n");
+    camera3::CameraTraces::dump(fd, args);
+
+    // Process dump arguments, if any
+    int n = args.size();
+    String16 verboseOption("-v");
+    String16 unreachableOption("--unreachable");
+    for (int i = 0; i < n; i++) {
+        if (args[i] == verboseOption) {
+            // change logging level
+            if (i + 1 >= n) continue;
+            String8 levelStr(args[i+1]);
+            int level = atoi(levelStr.string());
+            dprintf(fd, "\nSetting log level to %d.\n", level);
+            setLogLevel(level);
+        } else if (args[i] == unreachableOption) {
+            // Dump memory analysis
+            // TODO - should limit be an argument parameter?
+            UnreachableMemoryInfo info;
+            bool success = GetUnreachableMemory(info, /*limit*/ 10000);
+            if (!success) {
+                dprintf(fd, "\n== Unable to dump unreachable memory. "
+                        "Try disabling SELinux enforcement. ==\n");
+            } else {
+                dprintf(fd, "\n== Dumping unreachable memory: ==\n");
+                std::string s = info.ToString(/*log_contents*/ true);
+                write(fd, s.c_str(), s.size());
             }
         }
     }
@@ -2662,21 +2899,19 @@
 }
 
 void CameraService::dumpEventLog(int fd) {
-    String8 result = String8("\nPrior client events (most recent at top):\n");
+    dprintf(fd, "\n== Camera service events log (most recent at top): ==\n");
 
     Mutex::Autolock l(mLogLock);
     for (const auto& msg : mEventLog) {
-        result.appendFormat("  %s\n", msg.string());
+        dprintf(fd, "  %s\n", msg.string());
     }
 
     if (mEventLog.size() == DEFAULT_EVENT_LOG_LENGTH) {
-        result.append("  ...\n");
+        dprintf(fd, "  ...\n");
     } else if (mEventLog.size() == 0) {
-        result.append("  [no events yet]\n");
+        dprintf(fd, "  [no events yet]\n");
     }
-    result.append("\n");
-
-    write(fd, result.string(), result.size());
+    dprintf(fd, "\n");
 }
 
 void CameraService::handleTorchClientBinderDied(const wp<IBinder> &who) {
@@ -2719,12 +2954,12 @@
             __FUNCTION__);
 }
 
-void CameraService::updateStatus(int32_t status, const String8& cameraId) {
+void CameraService::updateStatus(StatusInternal status, const String8& cameraId) {
     updateStatus(status, cameraId, {});
 }
 
-void CameraService::updateStatus(int32_t status, const String8& cameraId,
-        std::initializer_list<int32_t> rejectSourceStates) {
+void CameraService::updateStatus(StatusInternal status, const String8& cameraId,
+        std::initializer_list<StatusInternal> rejectSourceStates) {
     // Do not lock mServiceLock here or can get into a deadlock from
     // connect() -> disconnect -> updateStatus
 
@@ -2739,18 +2974,18 @@
     // Update the status for this camera state, then send the onStatusChangedCallbacks to each
     // of the listeners with both the mStatusStatus and mStatusListenerLock held
     state->updateStatus(status, cameraId, rejectSourceStates, [this]
-            (const String8& cameraId, int32_t status) {
+            (const String8& cameraId, StatusInternal status) {
 
-            if (status != ICameraServiceListener::STATUS_ENUMERATING) {
+            if (status != StatusInternal::ENUMERATING) {
                 // Update torch status if it has a flash unit.
                 Mutex::Autolock al(mTorchStatusMutex);
-                int32_t torchStatus;
+                TorchModeStatus torchStatus;
                 if (getTorchStatusLocked(cameraId, &torchStatus) !=
                         NAME_NOT_FOUND) {
-                    int32_t newTorchStatus =
-                            status == ICameraServiceListener::STATUS_PRESENT ?
-                            ICameraServiceListener::TORCH_STATUS_AVAILABLE_OFF :
-                            ICameraServiceListener::TORCH_STATUS_NOT_AVAILABLE;
+                    TorchModeStatus newTorchStatus =
+                            status == StatusInternal::PRESENT ?
+                            TorchModeStatus::AVAILABLE_OFF :
+                            TorchModeStatus::NOT_AVAILABLE;
                     if (torchStatus != newTorchStatus) {
                         onTorchStatusChangedLocked(cameraId, newTorchStatus);
                     }
@@ -2760,13 +2995,54 @@
             Mutex::Autolock lock(mStatusListenerLock);
 
             for (auto& listener : mListenerList) {
-                // TODO: Refactor status listeners to use strings for Camera IDs and remove this.
-                int id = cameraIdToInt(cameraId);
-                if (id != -1) listener->onStatusChanged(status, id);
+                listener->onStatusChanged(mapToInterface(status), String16(cameraId));
             }
         });
 }
 
+template<class Func>
+void CameraService::CameraState::updateStatus(StatusInternal status,
+        const String8& cameraId,
+        std::initializer_list<StatusInternal> rejectSourceStates,
+        Func onStatusUpdatedLocked) {
+    Mutex::Autolock lock(mStatusLock);
+    StatusInternal oldStatus = mStatus;
+    mStatus = status;
+
+    if (oldStatus == status) {
+        return;
+    }
+
+    ALOGV("%s: Status has changed for camera ID %s from %#x to %#x", __FUNCTION__,
+            cameraId.string(), oldStatus, status);
+
+    if (oldStatus == StatusInternal::NOT_PRESENT &&
+            (status != StatusInternal::PRESENT &&
+             status != StatusInternal::ENUMERATING)) {
+
+        ALOGW("%s: From NOT_PRESENT can only transition into PRESENT or ENUMERATING",
+                __FUNCTION__);
+        mStatus = oldStatus;
+        return;
+    }
+
+    /**
+     * Sometimes we want to conditionally do a transition.
+     * For example if a client disconnects, we want to go to PRESENT
+     * only if we weren't already in NOT_PRESENT or ENUMERATING.
+     */
+    for (auto& rejectStatus : rejectSourceStates) {
+        if (oldStatus == rejectStatus) {
+            ALOGV("%s: Rejecting status transition for Camera ID %s,  since the source "
+                    "state was was in one of the bad states.", __FUNCTION__, cameraId.string());
+            mStatus = oldStatus;
+            return;
+        }
+    }
+
+    onStatusUpdatedLocked(cameraId, status);
+}
+
 void CameraService::updateProxyDeviceState(ICameraServiceProxy::CameraState newState,
         const String8& cameraId) {
     sp<ICameraServiceProxy> proxyBinder = getCameraServiceProxy();
@@ -2777,7 +3053,7 @@
 
 status_t CameraService::getTorchStatusLocked(
         const String8& cameraId,
-        int32_t *status) const {
+        TorchModeStatus *status) const {
     if (!status) {
         return BAD_VALUE;
     }
@@ -2792,14 +3068,12 @@
 }
 
 status_t CameraService::setTorchStatusLocked(const String8& cameraId,
-        int32_t status) {
+        TorchModeStatus status) {
     ssize_t index = mTorchStatusMap.indexOfKey(cameraId);
     if (index == NAME_NOT_FOUND) {
         return BAD_VALUE;
     }
-    int32_t& item =
-            mTorchStatusMap.editValueAt(index);
-    item = status;
+    mTorchStatusMap.editValueAt(index) = status;
 
     return OK;
 }
diff --git a/services/camera/libcameraservice/CameraService.h b/services/camera/libcameraservice/CameraService.h
index b35f35c..c7acdc9 100644
--- a/services/camera/libcameraservice/CameraService.h
+++ b/services/camera/libcameraservice/CameraService.h
@@ -29,6 +29,8 @@
 #include <camera/ICameraServiceProxy.h>
 #include <hardware/camera.h>
 
+#include <android/hardware/camera/common/1.0/types.h>
+
 #include <camera/VendorTagDescriptor.h>
 #include <camera/CaptureResult.h>
 #include <camera/CameraParameters.h>
@@ -36,6 +38,7 @@
 #include "CameraFlashlight.h"
 
 #include "common/CameraModule.h"
+#include "common/CameraProviderManager.h"
 #include "media/RingBuffer.h"
 #include "utils/AutoConditionLock.h"
 #include "utils/ClientManager.h"
@@ -55,11 +58,13 @@
 
 class CameraService :
     public BinderService<CameraService>,
-    public ::android::hardware::BnCameraService,
-    public IBinder::DeathRecipient,
-    public camera_module_callbacks_t
+    public virtual ::android::hardware::BnCameraService,
+    public virtual IBinder::DeathRecipient,
+    public camera_module_callbacks_t,
+    public virtual CameraProviderManager::StatusListener
 {
     friend class BinderService<CameraService>;
+    friend class CameraClient;
 public:
     class Client;
     class BasicClient;
@@ -70,11 +75,6 @@
         API_2 = 2
     };
 
-    // Process state (mirrors frameworks/base/core/java/android/app/ActivityManager.java)
-    static const int PROCESS_STATE_NONEXISTENT = -1;
-    static const int PROCESS_STATE_TOP = 2;
-    static const int PROCESS_STATE_TOP_SLEEPING = 5;
-
     // 3 second busy timeout when other clients are connecting
     static const nsecs_t DEFAULT_CONNECT_TIMEOUT_NS = 3000000000;
 
@@ -94,11 +94,12 @@
     virtual             ~CameraService();
 
     /////////////////////////////////////////////////////////////////////
-    // HAL Callbacks
-    virtual void        onDeviceStatusChanged(int cameraId,
-                                              camera_device_status_t newStatus);
+    // HAL Callbacks - implements CameraProviderManager::StatusListener
+
+    virtual void        onDeviceStatusChanged(const String8 &cameraId,
+            hardware::camera::common::V1_0::CameraDeviceStatus newHalStatus) override;
     virtual void        onTorchStatusChanged(const String8& cameraId,
-                                             int32_t newStatus);
+            hardware::camera::common::V1_0::TorchModeStatus newStatus) override;
 
     /////////////////////////////////////////////////////////////////////
     // ICameraService
@@ -106,7 +107,7 @@
 
     virtual binder::Status     getCameraInfo(int cameraId,
             hardware::CameraInfo* cameraInfo);
-    virtual binder::Status     getCameraCharacteristics(int cameraId,
+    virtual binder::Status     getCameraCharacteristics(const String16& cameraId,
             CameraMetadata* cameraInfo);
     virtual binder::Status     getCameraVendorTagDescriptor(
             /*out*/
@@ -125,12 +126,14 @@
             sp<hardware::ICamera>* device);
 
     virtual binder::Status     connectDevice(
-            const sp<hardware::camera2::ICameraDeviceCallbacks>& cameraCb, int32_t cameraId,
+            const sp<hardware::camera2::ICameraDeviceCallbacks>& cameraCb, const String16& cameraId,
             const String16& clientPackageName, int32_t clientUid,
             /*out*/
             sp<hardware::camera2::ICameraDeviceUser>* device);
 
-    virtual binder::Status    addListener(const sp<hardware::ICameraServiceListener>& listener);
+    virtual binder::Status    addListener(const sp<hardware::ICameraServiceListener>& listener,
+            /*out*/
+            std::vector<hardware::CameraStatus>* cameraStatuses);
     virtual binder::Status    removeListener(
             const sp<hardware::ICameraServiceListener>& listener);
 
@@ -147,7 +150,7 @@
 
     // OK = supports api of that version, -EOPNOTSUPP = does not support
     virtual binder::Status    supportsCameraApi(
-            int32_t cameraId, int32_t apiVersion,
+            const String16& cameraId, int32_t apiVersion,
             /*out*/
             bool *isSupported);
 
@@ -181,7 +184,7 @@
 
     /////////////////////////////////////////////////////////////////////
     // CameraDeviceFactory functionality
-    int                 getDeviceVersion(int cameraId, int* facing = NULL);
+    int                 getDeviceVersion(const String8& cameraId, int* facing = NULL);
 
     /////////////////////////////////////////////////////////////////////
     // Shared utilities
@@ -193,6 +196,7 @@
     class BasicClient : public virtual RefBase {
     public:
         virtual status_t       initialize(CameraModule *module) = 0;
+        virtual status_t       initialize(sp<CameraProviderManager> manager) = 0;
         virtual binder::Status disconnect();
 
         // because we can't virtually inherit IInterface, which breaks
@@ -229,7 +233,7 @@
         BasicClient(const sp<CameraService>& cameraService,
                 const sp<IBinder>& remoteCallback,
                 const String16& clientPackageName,
-                int cameraId,
+                const String8& cameraIdStr,
                 int cameraFacing,
                 int clientPid,
                 uid_t clientUid,
@@ -244,13 +248,13 @@
         bool                            mDestructionStarted;
 
         // these are initialized in the constructor.
-        sp<CameraService>               mCameraService;     // immutable after constructor
-        int                             mCameraId;          // immutable after constructor
-        int                             mCameraFacing;      // immutable after constructor
-        String16                        mClientPackageName; // immutable after constructor
+        static sp<CameraService>        sCameraService;
+        const String8                   mCameraIdStr;
+        const int                       mCameraFacing;
+        String16                        mClientPackageName;
         pid_t                           mClientPid;
-        uid_t                           mClientUid;         // immutable after constructor
-        pid_t                           mServicePid;        // immutable after constructor
+        const uid_t                     mClientUid;
+        const pid_t                     mServicePid;
         bool                            mDisconnected;
 
         // - The app-side Binder interface to receive callbacks from us
@@ -316,7 +320,7 @@
         Client(const sp<CameraService>& cameraService,
                 const sp<hardware::ICameraClient>& cameraClient,
                 const String16& clientPackageName,
-                int cameraId,
+                const String8& cameraIdStr,
                 int cameraFacing,
                 int clientPid,
                 uid_t clientUid,
@@ -339,14 +343,12 @@
         // superclass this can be cast to.
         virtual bool canCastToApiClient(apiLevel level) const;
     protected:
-        // Convert client from cookie.
-        static sp<CameraService::Client> getClientFromCookie(void* user);
-
         // Initialized in constructor
 
         // - The app-side Binder interface to receive callbacks from us
         sp<hardware::ICameraClient>               mRemoteCallback;
 
+        int mCameraId;  // All API1 clients use integer camera IDs
     }; // class Client
 
     /**
@@ -395,8 +397,8 @@
          * Make a ClientDescriptor object wrapping the given BasicClient strong pointer.
          */
         static DescriptorPtr makeClientDescriptor(const String8& key, const sp<BasicClient>& value,
-                int32_t cost, const std::set<String8>& conflictingKeys, int32_t priority,
-                int32_t ownerId);
+                int32_t cost, const std::set<String8>& conflictingKeys, int32_t score,
+                int32_t ownerId, int32_t state);
 
         /**
          * Make a ClientDescriptor object wrapping the given BasicClient strong pointer with
@@ -409,6 +411,20 @@
 
 private:
 
+    typedef hardware::camera::common::V1_0::CameraDeviceStatus CameraDeviceStatus;
+
+    /**
+     * Typesafe version of device status, containing both the HAL-layer and the service interface-
+     * layer values.
+     */
+    enum class StatusInternal : int32_t {
+        NOT_PRESENT = static_cast<int32_t>(CameraDeviceStatus::NOT_PRESENT),
+        PRESENT = static_cast<int32_t>(CameraDeviceStatus::PRESENT),
+        ENUMERATING = static_cast<int32_t>(CameraDeviceStatus::ENUMERATING),
+        NOT_AVAILABLE = static_cast<int32_t>(hardware::ICameraServiceListener::STATUS_NOT_AVAILABLE),
+        UNKNOWN = static_cast<int32_t>(hardware::ICameraServiceListener::STATUS_UNKNOWN)
+    };
+
     /**
      * Container class for the state of each logical camera device, including: ID, status, and
      * dependencies on other devices.  The mapping of camera ID -> state saved in mCameraStates
@@ -420,6 +436,7 @@
      */
     class CameraState {
     public:
+
         /**
          * Make a new CameraState and set the ID, cost, and conflicting devices using the values
          * returned in the HAL's camera_info struct for each device.
@@ -432,7 +449,7 @@
          *
          * This method acquires mStatusLock.
          */
-        int32_t getStatus() const;
+        StatusInternal getStatus() const;
 
         /**
          * This function updates the status for this camera device, unless the given status
@@ -445,8 +462,9 @@
          * This method aquires mStatusLock.
          */
         template<class Func>
-        void updateStatus(int32_t status, const String8& cameraId,
-                std::initializer_list<int32_t> rejectSourceStates,
+        void updateStatus(StatusInternal status,
+                const String8& cameraId,
+                std::initializer_list<StatusInternal> rejectSourceStates,
                 Func onStatusUpdatedLocked);
 
         /**
@@ -477,7 +495,7 @@
 
     private:
         const String8 mId;
-        int32_t mStatus; // protected by mStatusLock
+        StatusInternal mStatus; // protected by mStatusLock
         const int mCost;
         std::set<String8> mConflicting;
         mutable Mutex mStatusLock;
@@ -487,6 +505,12 @@
     // Delay-load the Camera HAL module
     virtual void onFirstRef();
 
+    // Load the legacy HAL module
+    status_t loadLegacyHalModule();
+
+    // Eumerate all camera providers in the system
+    status_t enumerateProviders();
+
     // Check if we can connect, before we acquire the service lock.
     // The returned originalClientPid is the PID of the original process that wants to connect to
     // camera.
@@ -657,7 +681,11 @@
     sp<MediaPlayer>     mSoundPlayer[NUM_SOUNDS];
     int                 mSoundRef;  // reference count (release all MediaPlayer when 0)
 
-    CameraModule*     mModule;
+    // Basic flag on whether the camera subsystem is in a usable state
+    bool                mInitialized;
+
+    CameraModule*       mModule;
+    sp<CameraProviderManager> mCameraProviderManager;
 
     // Guarded by mStatusListenerMutex
     std::vector<sp<hardware::ICameraServiceListener>> mListenerList;
@@ -671,9 +699,12 @@
      * This method must be idempotent.
      * This method acquires mStatusLock and mStatusListenerLock.
      */
-    void updateStatus(int32_t status, const String8& cameraId,
-            std::initializer_list<int32_t> rejectedSourceStates);
-    void updateStatus(int32_t status, const String8& cameraId);
+    void updateStatus(StatusInternal status,
+            const String8& cameraId,
+            std::initializer_list<StatusInternal>
+                rejectedSourceStates);
+    void updateStatus(StatusInternal status,
+            const String8& cameraId);
 
     // flashlight control
     sp<CameraFlashlight> mFlashlight;
@@ -684,7 +715,8 @@
     // guard mTorchUidMap
     Mutex                mTorchUidMapMutex;
     // camera id -> torch status
-    KeyedVector<String8, int32_t> mTorchStatusMap;
+    KeyedVector<String8, hardware::camera::common::V1_0::TorchModeStatus>
+            mTorchStatusMap;
     // camera id -> torch client binder
     // only store the last client that turns on each camera's torch mode
     KeyedVector<String8, sp<IBinder>> mTorchClientMap;
@@ -697,15 +729,15 @@
     // handle torch mode status change and invoke callbacks. mTorchStatusMutex
     // should be locked.
     void onTorchStatusChangedLocked(const String8& cameraId,
-            int32_t newStatus);
+            hardware::camera::common::V1_0::TorchModeStatus newStatus);
 
     // get a camera's torch status. mTorchStatusMutex should be locked.
     status_t getTorchStatusLocked(const String8 &cameraId,
-            int32_t *status) const;
+             hardware::camera::common::V1_0::TorchModeStatus *status) const;
 
     // set a camera's torch status. mTorchStatusMutex should be locked.
     status_t setTorchStatusLocked(const String8 &cameraId,
-            int32_t status);
+            hardware::camera::common::V1_0::TorchModeStatus status);
 
     // IBinder::DeathRecipient implementation
     virtual void        binderDied(const wp<IBinder> &who);
@@ -729,14 +761,6 @@
      */
     binder::Status      getLegacyParametersLazy(int cameraId, /*out*/CameraParameters* parameters);
 
-    /**
-     * Generate the CameraCharacteristics metadata required by the Camera2 API
-     * from the available HAL1 CameraParameters and CameraInfo.
-     *
-     * Sets Status to a service-specific error on failure
-     */
-    binder::Status      generateShimMetadata(int cameraId, /*out*/CameraMetadata* cameraInfo);
-
     static int getCallingPid();
 
     static int getCallingUid();
@@ -746,13 +770,8 @@
      */
     static String8 getFormattedCurrentTime();
 
-    /**
-     * Get the camera eviction priority from the current process state given by ActivityManager.
-     */
-    static int getCameraPriorityFromProcState(int procState);
-
     static binder::Status makeClient(const sp<CameraService>& cameraService,
-            const sp<IInterface>& cameraCb, const String16& packageName, int cameraId,
+            const sp<IInterface>& cameraCb, const String16& packageName, const String8& cameraId,
             int facing, int clientPid, uid_t clientUid, int servicePid, bool legacyMode,
             int halVersion, int deviceVersion, apiLevel effectiveApiLevel,
             /*out*/sp<BasicClient>* client);
@@ -760,227 +779,15 @@
     status_t checkCameraAccess(const String16& opPackageName);
 
     static String8 toString(std::set<userid_t> intSet);
+    static int32_t mapToInterface(hardware::camera::common::V1_0::TorchModeStatus status);
+    static StatusInternal mapToInternal(hardware::camera::common::V1_0::CameraDeviceStatus status);
+    static int32_t mapToInterface(StatusInternal status);
 
     static sp<ICameraServiceProxy> getCameraServiceProxy();
     static void pingCameraServiceProxy();
 
 };
 
-template<class Func>
-void CameraService::CameraState::updateStatus(int32_t status,
-        const String8& cameraId,
-        std::initializer_list<int32_t> rejectSourceStates,
-        Func onStatusUpdatedLocked) {
-    Mutex::Autolock lock(mStatusLock);
-    int32_t oldStatus = mStatus;
-    mStatus = status;
-
-    if (oldStatus == status) {
-        return;
-    }
-
-    ALOGV("%s: Status has changed for camera ID %s from %#x to %#x", __FUNCTION__,
-            cameraId.string(), oldStatus, status);
-
-    if (oldStatus == hardware::ICameraServiceListener::STATUS_NOT_PRESENT &&
-            (status != hardware::ICameraServiceListener::STATUS_PRESENT &&
-             status != hardware::ICameraServiceListener::STATUS_ENUMERATING)) {
-
-        ALOGW("%s: From NOT_PRESENT can only transition into PRESENT or ENUMERATING",
-                __FUNCTION__);
-        mStatus = oldStatus;
-        return;
-    }
-
-    /**
-     * Sometimes we want to conditionally do a transition.
-     * For example if a client disconnects, we want to go to PRESENT
-     * only if we weren't already in NOT_PRESENT or ENUMERATING.
-     */
-    for (auto& rejectStatus : rejectSourceStates) {
-        if (oldStatus == rejectStatus) {
-            ALOGV("%s: Rejecting status transition for Camera ID %s,  since the source "
-                    "state was was in one of the bad states.", __FUNCTION__, cameraId.string());
-            mStatus = oldStatus;
-            return;
-        }
-    }
-
-    onStatusUpdatedLocked(cameraId, status);
-}
-
-#define STATUS_ERROR(errorCode, errorString) \
-    binder::Status::fromServiceSpecificError(errorCode, \
-            String8::format("%s:%d: %s", __FUNCTION__, __LINE__, errorString))
-
-#define STATUS_ERROR_FMT(errorCode, errorString, ...) \
-    binder::Status::fromServiceSpecificError(errorCode, \
-            String8::format("%s:%d: " errorString, __FUNCTION__, __LINE__, __VA_ARGS__))
-
-
-template<class CALLBACK, class CLIENT>
-binder::Status CameraService::connectHelper(const sp<CALLBACK>& cameraCb, const String8& cameraId,
-        int halVersion, const String16& clientPackageName, int clientUid, int clientPid,
-        apiLevel effectiveApiLevel, bool legacyMode, bool shimUpdateOnly,
-        /*out*/sp<CLIENT>& device) {
-    binder::Status ret = binder::Status::ok();
-
-    String8 clientName8(clientPackageName);
-
-    int originalClientPid = 0;
-
-    ALOGI("CameraService::connect call (PID %d \"%s\", camera ID %s) for HAL version %s and "
-            "Camera API version %d", clientPid, clientName8.string(), cameraId.string(),
-            (halVersion == -1) ? "default" : std::to_string(halVersion).c_str(),
-            static_cast<int>(effectiveApiLevel));
-
-    sp<CLIENT> client = nullptr;
-    {
-        // Acquire mServiceLock and prevent other clients from connecting
-        std::unique_ptr<AutoConditionLock> lock =
-                AutoConditionLock::waitAndAcquire(mServiceLockWrapper, DEFAULT_CONNECT_TIMEOUT_NS);
-
-        if (lock == nullptr) {
-            ALOGE("CameraService::connect (PID %d) rejected (too many other clients connecting)."
-                    , clientPid);
-            return STATUS_ERROR_FMT(ERROR_MAX_CAMERAS_IN_USE,
-                    "Cannot open camera %s for \"%s\" (PID %d): Too many other clients connecting",
-                    cameraId.string(), clientName8.string(), clientPid);
-        }
-
-        // Enforce client permissions and do basic sanity checks
-        if(!(ret = validateConnectLocked(cameraId, clientName8,
-                /*inout*/clientUid, /*inout*/clientPid, /*out*/originalClientPid)).isOk()) {
-            return ret;
-        }
-
-        // Check the shim parameters after acquiring lock, if they have already been updated and
-        // we were doing a shim update, return immediately
-        if (shimUpdateOnly) {
-            auto cameraState = getCameraState(cameraId);
-            if (cameraState != nullptr) {
-                if (!cameraState->getShimParams().isEmpty()) return ret;
-            }
-        }
-
-        status_t err;
-
-        sp<BasicClient> clientTmp = nullptr;
-        std::shared_ptr<resource_policy::ClientDescriptor<String8, sp<BasicClient>>> partial;
-        if ((err = handleEvictionsLocked(cameraId, originalClientPid, effectiveApiLevel,
-                IInterface::asBinder(cameraCb), clientName8, /*out*/&clientTmp,
-                /*out*/&partial)) != NO_ERROR) {
-            switch (err) {
-                case -ENODEV:
-                    return STATUS_ERROR_FMT(ERROR_DISCONNECTED,
-                            "No camera device with ID \"%s\" currently available",
-                            cameraId.string());
-                case -EBUSY:
-                    return STATUS_ERROR_FMT(ERROR_CAMERA_IN_USE,
-                            "Higher-priority client using camera, ID \"%s\" currently unavailable",
-                            cameraId.string());
-                default:
-                    return STATUS_ERROR_FMT(ERROR_INVALID_OPERATION,
-                            "Unexpected error %s (%d) opening camera \"%s\"",
-                            strerror(-err), err, cameraId.string());
-            }
-        }
-
-        if (clientTmp.get() != nullptr) {
-            // Handle special case for API1 MediaRecorder where the existing client is returned
-            device = static_cast<CLIENT*>(clientTmp.get());
-            return ret;
-        }
-
-        // give flashlight a chance to close devices if necessary.
-        mFlashlight->prepareDeviceOpen(cameraId);
-
-        // TODO: Update getDeviceVersion + HAL interface to use strings for Camera IDs
-        int id = cameraIdToInt(cameraId);
-        if (id == -1) {
-            ALOGE("%s: Invalid camera ID %s, cannot get device version from HAL.", __FUNCTION__,
-                    cameraId.string());
-            return STATUS_ERROR_FMT(ERROR_ILLEGAL_ARGUMENT,
-                    "Bad camera ID \"%s\" passed to camera open", cameraId.string());
-        }
-
-        int facing = -1;
-        int deviceVersion = getDeviceVersion(id, /*out*/&facing);
-        sp<BasicClient> tmp = nullptr;
-        if(!(ret = makeClient(this, cameraCb, clientPackageName, id, facing, clientPid,
-                clientUid, getpid(), legacyMode, halVersion, deviceVersion, effectiveApiLevel,
-                /*out*/&tmp)).isOk()) {
-            return ret;
-        }
-        client = static_cast<CLIENT*>(tmp.get());
-
-        LOG_ALWAYS_FATAL_IF(client.get() == nullptr, "%s: CameraService in invalid state",
-                __FUNCTION__);
-
-        if ((err = client->initialize(mModule)) != OK) {
-            ALOGE("%s: Could not initialize client from HAL module.", __FUNCTION__);
-            // Errors could be from the HAL module open call or from AppOpsManager
-            switch(err) {
-                case BAD_VALUE:
-                    return STATUS_ERROR_FMT(ERROR_ILLEGAL_ARGUMENT,
-                            "Illegal argument to HAL module for camera \"%s\"", cameraId.string());
-                case -EBUSY:
-                    return STATUS_ERROR_FMT(ERROR_CAMERA_IN_USE,
-                            "Camera \"%s\" is already open", cameraId.string());
-                case -EUSERS:
-                    return STATUS_ERROR_FMT(ERROR_MAX_CAMERAS_IN_USE,
-                            "Too many cameras already open, cannot open camera \"%s\"",
-                            cameraId.string());
-                case PERMISSION_DENIED:
-                    return STATUS_ERROR_FMT(ERROR_PERMISSION_DENIED,
-                            "No permission to open camera \"%s\"", cameraId.string());
-                case -EACCES:
-                    return STATUS_ERROR_FMT(ERROR_DISABLED,
-                            "Camera \"%s\" disabled by policy", cameraId.string());
-                case -ENODEV:
-                default:
-                    return STATUS_ERROR_FMT(ERROR_INVALID_OPERATION,
-                            "Failed to initialize camera \"%s\": %s (%d)", cameraId.string(),
-                            strerror(-err), err);
-            }
-        }
-
-        // Update shim paremeters for legacy clients
-        if (effectiveApiLevel == API_1) {
-            // Assume we have always received a Client subclass for API1
-            sp<Client> shimClient = reinterpret_cast<Client*>(client.get());
-            String8 rawParams = shimClient->getParameters();
-            CameraParameters params(rawParams);
-
-            auto cameraState = getCameraState(cameraId);
-            if (cameraState != nullptr) {
-                cameraState->setShimParams(params);
-            } else {
-                ALOGE("%s: Cannot update shim parameters for camera %s, no such device exists.",
-                        __FUNCTION__, cameraId.string());
-            }
-        }
-
-        if (shimUpdateOnly) {
-            // If only updating legacy shim parameters, immediately disconnect client
-            mServiceLock.unlock();
-            client->disconnect();
-            mServiceLock.lock();
-        } else {
-            // Otherwise, add client to active clients list
-            finishConnectLocked(client, partial);
-        }
-    } // lock is destroyed, allow further connect calls
-
-    // Important: release the mutex here so the client can call back into the service from its
-    // destructor (can be at the end of the call)
-    device = client;
-    return ret;
-}
-
-#undef STATUS_ERROR_FMT
-#undef STATUS_ERROR
-
 } // namespace android
 
 #endif
diff --git a/services/camera/libcameraservice/api1/Camera2Client.cpp b/services/camera/libcameraservice/api1/Camera2Client.cpp
index bcd62d6..3aec562 100644
--- a/services/camera/libcameraservice/api1/Camera2Client.cpp
+++ b/services/camera/libcameraservice/api1/Camera2Client.cpp
@@ -56,7 +56,8 @@
         int servicePid,
         bool legacyMode):
         Camera2ClientBase(cameraService, cameraClient, clientPackageName,
-                cameraId, cameraFacing, clientPid, clientUid, servicePid),
+                String8::format("%d", cameraId), cameraFacing,
+                clientPid, clientUid, servicePid),
         mParameters(cameraId, cameraFacing)
 {
     ATRACE_CALL();
@@ -67,13 +68,22 @@
     mLegacyMode = legacyMode;
 }
 
-status_t Camera2Client::initialize(CameraModule *module)
+status_t Camera2Client::initialize(CameraModule *module) {
+    return initializeImpl(module);
+}
+
+status_t Camera2Client::initialize(sp<CameraProviderManager> manager) {
+    return initializeImpl(manager);
+}
+
+template<typename TProviderPtr>
+status_t Camera2Client::initializeImpl(TProviderPtr providerPtr)
 {
     ATRACE_CALL();
     ALOGV("%s: Initializing client for camera %d", __FUNCTION__, mCameraId);
     status_t res;
 
-    res = Camera2ClientBase::initialize(module);
+    res = Camera2ClientBase::initialize(providerPtr);
     if (res != OK) {
         return res;
     }
@@ -993,7 +1003,7 @@
 }
 
 status_t Camera2Client::startRecordingL(Parameters &params, bool restart) {
-    status_t res;
+    status_t res = OK;
 
     ALOGV("%s: state == %d, restart = %d", __FUNCTION__, params.state, restart);
 
@@ -1034,7 +1044,7 @@
     }
 
     if (!restart) {
-        mCameraService->playSound(CameraService::SOUND_RECORDING_START);
+        sCameraService->playSound(CameraService::SOUND_RECORDING_START);
         mStreamingProcessor->updateRecordingRequest(params);
         if (res != OK) {
             ALOGE("%s: Camera %d: Unable to update recording request: %s (%d)",
@@ -1191,7 +1201,7 @@
             return;
     };
 
-    mCameraService->playSound(CameraService::SOUND_RECORDING_STOP);
+    sCameraService->playSound(CameraService::SOUND_RECORDING_STOP);
 
     // Remove recording stream because the video target may be abandoned soon.
     res = stopStream();
@@ -1621,7 +1631,7 @@
 }
 
 status_t Camera2Client::commandPlayRecordingSoundL() {
-    mCameraService->playSound(CameraService::SOUND_RECORDING_START);
+    sCameraService->playSound(CameraService::SOUND_RECORDING_START);
     return OK;
 }
 
diff --git a/services/camera/libcameraservice/api1/Camera2Client.h b/services/camera/libcameraservice/api1/Camera2Client.h
index e2129f5..87c91a0 100644
--- a/services/camera/libcameraservice/api1/Camera2Client.h
+++ b/services/camera/libcameraservice/api1/Camera2Client.h
@@ -98,7 +98,8 @@
 
     virtual ~Camera2Client();
 
-    status_t initialize(CameraModule *module);
+    virtual status_t initialize(CameraModule *module) override;
+    virtual status_t initialize(sp<CameraProviderManager> manager) override;
 
     virtual status_t dump(int fd, const Vector<String16>& args);
 
@@ -219,6 +220,9 @@
 
     // Video snapshot jpeg size overriding helper function
     status_t overrideVideoSnapshotSize(Parameters &params);
+
+    template<typename TProviderPtr>
+    status_t initializeImpl(TProviderPtr providerPtr);
 };
 
 }; // namespace android
diff --git a/services/camera/libcameraservice/api1/CameraClient.cpp b/services/camera/libcameraservice/api1/CameraClient.cpp
index 266fb03..ffb657e 100644
--- a/services/camera/libcameraservice/api1/CameraClient.cpp
+++ b/services/camera/libcameraservice/api1/CameraClient.cpp
@@ -17,6 +17,7 @@
 #define LOG_TAG "CameraClient"
 //#define LOG_NDEBUG 0
 
+#include <cutils/atomic.h>
 #include <cutils/properties.h>
 #include <gui/Surface.h>
 #include <media/hardware/HardwareAPI.h>
@@ -41,7 +42,8 @@
         int clientPid, int clientUid,
         int servicePid, bool legacyMode):
         Client(cameraService, cameraClient, clientPackageName,
-                cameraId, cameraFacing, clientPid, clientUid, servicePid)
+                String8::format("%d", cameraId), cameraFacing, clientPid,
+                clientUid, servicePid)
 {
     int callingPid = getCallingPid();
     LOG1("CameraClient::CameraClient E (pid %d, id %d)", callingPid, cameraId);
@@ -61,6 +63,15 @@
 }
 
 status_t CameraClient::initialize(CameraModule *module) {
+    return initializeImpl<CameraModule*>(module);
+}
+
+status_t CameraClient::initialize(sp<CameraProviderManager> manager) {
+    return initializeImpl<sp<CameraProviderManager>>(manager);
+}
+
+template<typename TProviderPtr>
+status_t CameraClient::initializeImpl(TProviderPtr providerPtr) {
     int callingPid = getCallingPid();
     status_t res;
 
@@ -76,7 +87,7 @@
     snprintf(camera_device_name, sizeof(camera_device_name), "%d", mCameraId);
 
     mHardware = new CameraHardwareInterface(camera_device_name);
-    res = mHardware->initialize(module);
+    res = mHardware->initialize(providerPtr);
     if (res != OK) {
         ALOGE("%s: Camera %d: unable to initialize device: %s (%d)",
                 __FUNCTION__, mCameraId, strerror(-res), res);
@@ -252,7 +263,7 @@
     // Turn off all messages.
     disableMsgType(CAMERA_MSG_ALL_MSGS);
     mHardware->stopPreview();
-    mCameraService->updateProxyDeviceState(
+    sCameraService->updateProxyDeviceState(
         ICameraServiceProxy::CAMERA_STATE_IDLE,
         String8::format("%d", mCameraId));
     mHardware->cancelPicture();
@@ -414,7 +425,7 @@
     mHardware->setPreviewWindow(mPreviewWindow);
     result = mHardware->startPreview();
     if (result == NO_ERROR) {
-        mCameraService->updateProxyDeviceState(
+        sCameraService->updateProxyDeviceState(
             ICameraServiceProxy::CAMERA_STATE_ACTIVE,
             String8::format("%d", mCameraId));
     }
@@ -440,7 +451,7 @@
 
     // start recording mode
     enableMsgType(CAMERA_MSG_VIDEO_FRAME);
-    mCameraService->playSound(CameraService::SOUND_RECORDING_START);
+    sCameraService->playSound(CameraService::SOUND_RECORDING_START);
     result = mHardware->startRecording();
     if (result != NO_ERROR) {
         ALOGE("mHardware->startRecording() failed with status %d", result);
@@ -457,7 +468,7 @@
 
     disableMsgType(CAMERA_MSG_PREVIEW_FRAME);
     mHardware->stopPreview();
-    mCameraService->updateProxyDeviceState(
+    sCameraService->updateProxyDeviceState(
         ICameraServiceProxy::CAMERA_STATE_IDLE,
         String8::format("%d", mCameraId));
     mPreviewBuffer.clear();
@@ -471,7 +482,7 @@
 
     disableMsgType(CAMERA_MSG_VIDEO_FRAME);
     mHardware->stopRecording();
-    mCameraService->playSound(CameraService::SOUND_RECORDING_STOP);
+    sCameraService->playSound(CameraService::SOUND_RECORDING_STOP);
 
     mPreviewBuffer.clear();
 }
@@ -697,7 +708,7 @@
         }
         return OK;
     } else if (cmd == CAMERA_CMD_PLAY_RECORDING_SOUND) {
-        mCameraService->playSound(CameraService::SOUND_RECORDING_START);
+        sCameraService->playSound(CameraService::SOUND_RECORDING_START);
     } else if (cmd == CAMERA_CMD_SET_VIDEO_BUFFER_COUNT) {
         // Silently ignore this command
         return INVALID_OPERATION;
@@ -748,6 +759,16 @@
     return false;
 }
 
+sp<CameraClient> CameraClient::getClientFromCookie(void* user) {
+    String8 cameraId = String8::format("%d", (int)(intptr_t) user);
+    auto clientDescriptor = sCameraService->mActiveClientManager.get(cameraId);
+    if (clientDescriptor != nullptr) {
+        return sp<CameraClient>{
+                static_cast<CameraClient*>(clientDescriptor->getValue().get())};
+    }
+    return sp<CameraClient>{nullptr};
+}
+
 // Callback messages can be dispatched to internal handlers or pass to our
 // client's callback functions, depending on the message type.
 //
@@ -767,7 +788,7 @@
         int32_t ext2, void* user) {
     LOG2("notifyCallback(%d)", msgType);
 
-    sp<CameraClient> client = static_cast<CameraClient*>(getClientFromCookie(user).get());
+    sp<CameraClient> client = getClientFromCookie(user);
     if (client.get() == nullptr) return;
 
     if (!client->lockIfMessageWanted(msgType)) return;
@@ -787,7 +808,7 @@
         const sp<IMemory>& dataPtr, camera_frame_metadata_t *metadata, void* user) {
     LOG2("dataCallback(%d)", msgType);
 
-    sp<CameraClient> client = static_cast<CameraClient*>(getClientFromCookie(user).get());
+    sp<CameraClient> client = getClientFromCookie(user);
     if (client.get() == nullptr) return;
 
     if (!client->lockIfMessageWanted(msgType)) return;
@@ -820,7 +841,7 @@
         int32_t msgType, const sp<IMemory>& dataPtr, void* user) {
     LOG2("dataCallbackTimestamp(%d)", msgType);
 
-    sp<CameraClient> client = static_cast<CameraClient*>(getClientFromCookie(user).get());
+    sp<CameraClient> client = getClientFromCookie(user);
     if (client.get() == nullptr) return;
 
     if (!client->lockIfMessageWanted(msgType)) return;
@@ -837,7 +858,7 @@
 // snapshot taken callback
 void CameraClient::handleShutter(void) {
     if (mPlayShutterSound) {
-        mCameraService->playSound(CameraService::SOUND_SHUTTER);
+        sCameraService->playSound(CameraService::SOUND_SHUTTER);
     }
 
     sp<hardware::ICameraClient> c = mRemoteCallback;
@@ -850,7 +871,7 @@
 
     // Shutters only happen in response to takePicture, so mark device as
     // idle now, until preview is restarted
-    mCameraService->updateProxyDeviceState(
+    sCameraService->updateProxyDeviceState(
         ICameraServiceProxy::CAMERA_STATE_IDLE,
         String8::format("%d", mCameraId));
 
diff --git a/services/camera/libcameraservice/api1/CameraClient.h b/services/camera/libcameraservice/api1/CameraClient.h
index 4f46fc4..91f00e3 100644
--- a/services/camera/libcameraservice/api1/CameraClient.h
+++ b/services/camera/libcameraservice/api1/CameraClient.h
@@ -70,7 +70,8 @@
             bool legacyMode = false);
     ~CameraClient();
 
-    status_t initialize(CameraModule *module);
+    virtual status_t initialize(CameraModule *module) override;
+    virtual status_t initialize(sp<CameraProviderManager> manager) override;
 
     virtual status_t dump(int fd, const Vector<String16>& args);
 
@@ -78,6 +79,9 @@
 
 private:
 
+    template<typename TProviderPtr>
+    status_t initializeImpl(TProviderPtr providerPtr);
+
     // check whether the calling process matches mClientPid.
     status_t                checkPid() const;
     status_t                checkPidAndHardware() const;  // also check mHardware != 0
@@ -98,6 +102,8 @@
     // internal function used by sendCommand to enable/disable shutter sound.
     status_t                enableShutterSound(bool enable);
 
+    static sp<CameraClient>        getClientFromCookie(void* user);
+
     // these are static callback functions
     static void             notifyCallback(int32_t msgType, int32_t ext1, int32_t ext2, void* user);
     static void             dataCallback(int32_t msgType, const sp<IMemory>& dataPtr,
diff --git a/services/camera/libcameraservice/api1/client2/Parameters.cpp b/services/camera/libcameraservice/api1/client2/Parameters.cpp
index 9a7839b..83c84af 100644
--- a/services/camera/libcameraservice/api1/client2/Parameters.cpp
+++ b/services/camera/libcameraservice/api1/client2/Parameters.cpp
@@ -911,13 +911,25 @@
             CameraParameters::FALSE);
     }
 
-    char value[PROPERTY_VALUE_MAX];
-    property_get("camera.disable_zsl_mode", value, "0");
-    if (!strcmp(value,"1") || slowJpegMode) {
+    bool isZslReprocessPresent = false;
+    camera_metadata_ro_entry_t availableCapabilities =
+        staticInfo(ANDROID_REQUEST_AVAILABLE_CAPABILITIES);
+    if (0 < availableCapabilities.count) {
+        const uint8_t *caps = availableCapabilities.data.u8;
+        for (size_t i = 0; i < availableCapabilities.count; i++) {
+            if (ANDROID_REQUEST_AVAILABLE_CAPABILITIES_PRIVATE_REPROCESSING ==
+                caps[i]) {
+                isZslReprocessPresent = true;
+                break;
+            }
+        }
+    }
+
+    if (slowJpegMode || property_get_bool("camera.disable_zsl_mode", false)) {
         ALOGI("Camera %d: Disabling ZSL mode", cameraId);
         allowZslMode = false;
     } else {
-        allowZslMode = true;
+        allowZslMode = isZslReprocessPresent;
     }
 
     ALOGI("%s: allowZslMode: %d slowJpegMode %d", __FUNCTION__, allowZslMode, slowJpegMode);
diff --git a/services/camera/libcameraservice/api1/client2/ZslProcessor.cpp b/services/camera/libcameraservice/api1/client2/ZslProcessor.cpp
index b127472..e03ec66 100644
--- a/services/camera/libcameraservice/api1/client2/ZslProcessor.cpp
+++ b/services/camera/libcameraservice/api1/client2/ZslProcessor.cpp
@@ -37,9 +37,91 @@
 #include "api1/client2/ZslProcessor.h"
 #include "device3/Camera3Device.h"
 
+typedef android::RingBufferConsumer::PinnedBufferItem PinnedBufferItem;
+
 namespace android {
 namespace camera2 {
 
+namespace {
+struct TimestampFinder : public RingBufferConsumer::RingBufferComparator {
+    typedef RingBufferConsumer::BufferInfo BufferInfo;
+
+    enum {
+        SELECT_I1 = -1,
+        SELECT_I2 = 1,
+        SELECT_NEITHER = 0,
+    };
+
+    explicit TimestampFinder(nsecs_t timestamp) : mTimestamp(timestamp) {}
+    ~TimestampFinder() {}
+
+    template <typename T>
+    static void swap(T& a, T& b) {
+        T tmp = a;
+        a = b;
+        b = tmp;
+    }
+
+    /**
+     * Try to find the best candidate for a ZSL buffer.
+     * Match priority from best to worst:
+     *  1) Timestamps match.
+     *  2) Timestamp is closest to the needle (and lower).
+     *  3) Timestamp is closest to the needle (and higher).
+     *
+     */
+    virtual int compare(const BufferInfo *i1,
+                        const BufferInfo *i2) const {
+        // Try to select non-null object first.
+        if (i1 == NULL) {
+            return SELECT_I2;
+        } else if (i2 == NULL) {
+            return SELECT_I1;
+        }
+
+        // Best result: timestamp is identical
+        if (i1->mTimestamp == mTimestamp) {
+            return SELECT_I1;
+        } else if (i2->mTimestamp == mTimestamp) {
+            return SELECT_I2;
+        }
+
+        const BufferInfo* infoPtrs[2] = {
+            i1,
+            i2
+        };
+        int infoSelectors[2] = {
+            SELECT_I1,
+            SELECT_I2
+        };
+
+        // Order i1,i2 so that always i1.timestamp < i2.timestamp
+        if (i1->mTimestamp > i2->mTimestamp) {
+            swap(infoPtrs[0], infoPtrs[1]);
+            swap(infoSelectors[0], infoSelectors[1]);
+        }
+
+        // Second best: closest (lower) timestamp
+        if (infoPtrs[1]->mTimestamp < mTimestamp) {
+            return infoSelectors[1];
+        } else if (infoPtrs[0]->mTimestamp < mTimestamp) {
+            return infoSelectors[0];
+        }
+
+        // Worst: closest (higher) timestamp
+        return infoSelectors[0];
+
+        /**
+         * The above cases should cover all the possibilities,
+         * and we get an 'empty' result only if the ring buffer
+         * was empty itself
+         */
+    }
+
+    const nsecs_t mTimestamp;
+}; // struct TimestampFinder
+} // namespace anonymous
+
 ZslProcessor::ZslProcessor(
     sp<Camera2Client> client,
     wp<CaptureSequencer> sequencer):
@@ -50,8 +132,13 @@
         mSequencer(sequencer),
         mId(client->getCameraId()),
         mZslStreamId(NO_STREAM),
+        mInputStreamId(NO_STREAM),
         mFrameListHead(0),
-        mHasFocuser(false) {
+        mHasFocuser(false),
+        mInputBuffer(nullptr),
+        mProducer(nullptr),
+        mInputProducer(nullptr),
+        mInputProducerSlot(-1) {
     // Initialize buffer queue and frame list based on pipeline max depth.
     size_t pipelineMaxDepth = kDefaultMaxPipelineDepth;
     if (client != 0) {
@@ -83,7 +170,6 @@
     mFrameListDepth = pipelineMaxDepth;
     mBufferQueueDepth = mFrameListDepth + 1;
 
-
     mZslQueue.insertAt(0, mBufferQueueDepth);
     mFrameList.insertAt(0, mFrameListDepth);
     sp<CaptureSequencer> captureSequencer = mSequencer.promote();
@@ -144,7 +230,7 @@
         return INVALID_OPERATION;
     }
 
-    if (mZslStreamId != NO_STREAM) {
+    if ((mZslStreamId != NO_STREAM) || (mInputStreamId != NO_STREAM)) {
         // Check if stream parameters have to change
         uint32_t currentWidth, currentHeight;
         res = device->getStreamInfo(mZslStreamId,
@@ -157,21 +243,57 @@
         }
         if (currentWidth != (uint32_t)params.fastInfo.arrayWidth ||
                 currentHeight != (uint32_t)params.fastInfo.arrayHeight) {
-            ALOGV("%s: Camera %d: Deleting stream %d since the buffer "
-                  "dimensions changed",
-                __FUNCTION__, client->getCameraId(), mZslStreamId);
-            res = device->deleteStream(mZslStreamId);
-            if (res == -EBUSY) {
-                ALOGV("%s: Camera %d: Device is busy, call updateStream again "
-                      " after it becomes idle", __FUNCTION__, mId);
-                return res;
-            } else if(res != OK) {
-                ALOGE("%s: Camera %d: Unable to delete old output stream "
-                        "for ZSL: %s (%d)", __FUNCTION__,
-                        client->getCameraId(), strerror(-res), res);
-                return res;
+            if (mZslStreamId != NO_STREAM) {
+                ALOGV("%s: Camera %d: Deleting stream %d since the buffer "
+                      "dimensions changed",
+                    __FUNCTION__, client->getCameraId(), mZslStreamId);
+                res = device->deleteStream(mZslStreamId);
+                if (res == -EBUSY) {
+                    ALOGV("%s: Camera %d: Device is busy, call updateStream again "
+                          " after it becomes idle", __FUNCTION__, mId);
+                    return res;
+                } else if(res != OK) {
+                    ALOGE("%s: Camera %d: Unable to delete old output stream "
+                            "for ZSL: %s (%d)", __FUNCTION__,
+                            client->getCameraId(), strerror(-res), res);
+                    return res;
+                }
+                mZslStreamId = NO_STREAM;
             }
-            mZslStreamId = NO_STREAM;
+
+            if (mInputStreamId != NO_STREAM) {
+                ALOGV("%s: Camera %d: Deleting stream %d since the buffer "
+                      "dimensions changed",
+                    __FUNCTION__, client->getCameraId(), mInputStreamId);
+                res = device->deleteStream(mInputStreamId);
+                if (res == -EBUSY) {
+                    ALOGV("%s: Camera %d: Device is busy, call updateStream again "
+                          " after it becomes idle", __FUNCTION__, mId);
+                    return res;
+                } else if(res != OK) {
+                    ALOGE("%s: Camera %d: Unable to delete old output stream "
+                            "for ZSL: %s (%d)", __FUNCTION__,
+                            client->getCameraId(), strerror(-res), res);
+                    return res;
+                }
+                mInputStreamId = NO_STREAM;
+            }
+            if (nullptr != mInputProducer.get()) {
+                mInputProducer->disconnect(NATIVE_WINDOW_API_CPU);
+                mInputProducer.clear();
+            }
+        }
+    }
+
+    if (mInputStreamId == NO_STREAM) {
+        res = device->createInputStream(params.fastInfo.arrayWidth,
+            params.fastInfo.arrayHeight, HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED,
+            &mInputStreamId);
+        if (res != OK) {
+            ALOGE("%s: Camera %d: Can't create input stream: "
+                    "%s (%d)", __FUNCTION__, client->getCameraId(),
+                    strerror(-res), res);
+            return res;
         }
     }
 
@@ -179,21 +301,23 @@
         // Create stream for HAL production
         // TODO: Sort out better way to select resolution for ZSL
 
-        // Note that format specified internally in Camera3ZslStream
-        res = device->createZslStream(
-                params.fastInfo.arrayWidth, params.fastInfo.arrayHeight,
-                mBufferQueueDepth,
-                &mZslStreamId,
-                &mZslStream);
+        sp<IGraphicBufferProducer> producer;
+        sp<IGraphicBufferConsumer> consumer;
+        BufferQueue::createBufferQueue(&producer, &consumer);
+        mProducer = new RingBufferConsumer(consumer, GRALLOC_USAGE_HW_CAMERA_ZSL,
+            mBufferQueueDepth);
+        mProducer->setName(String8("Camera2-ZslRingBufferConsumer"));
+        sp<Surface> outSurface = new Surface(producer);
+
+        res = device->createStream(outSurface, params.fastInfo.arrayWidth,
+            params.fastInfo.arrayHeight, HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED,
+            HAL_DATASPACE_UNKNOWN, CAMERA3_STREAM_ROTATION_0, &mZslStreamId);
         if (res != OK) {
             ALOGE("%s: Camera %d: Can't create ZSL stream: "
                     "%s (%d)", __FUNCTION__, client->getCameraId(),
                     strerror(-res), res);
             return res;
         }
-
-        // Only add the camera3 buffer listener when the stream is created.
-        mZslStream->addBufferListener(this);
     }
 
     client->registerFrameListener(Camera2Client::kPreviewRequestIdStart,
@@ -207,23 +331,27 @@
 status_t ZslProcessor::deleteStream() {
     ATRACE_CALL();
     status_t res;
+    sp<Camera3Device> device = nullptr;
+    sp<Camera2Client> client = nullptr;
 
     Mutex::Autolock l(mInputMutex);
 
-    if (mZslStreamId != NO_STREAM) {
-        sp<Camera2Client> client = mClient.promote();
+    if ((mZslStreamId != NO_STREAM) || (mInputStreamId != NO_STREAM)) {
+        client = mClient.promote();
         if (client == 0) {
             ALOGE("%s: Camera %d: Client does not exist", __FUNCTION__, mId);
             return INVALID_OPERATION;
         }
 
-        sp<Camera3Device> device =
+        device =
             reinterpret_cast<Camera3Device*>(client->getCameraDevice().get());
         if (device == 0) {
             ALOGE("%s: Camera %d: Device does not exist", __FUNCTION__, mId);
             return INVALID_OPERATION;
         }
+    }
 
+    if (mZslStreamId != NO_STREAM) {
         res = device->deleteStream(mZslStreamId);
         if (res != OK) {
             ALOGE("%s: Camera %d: Cannot delete ZSL output stream %d: "
@@ -234,6 +362,23 @@
 
         mZslStreamId = NO_STREAM;
     }
+    if (mInputStreamId != NO_STREAM) {
+        res = device->deleteStream(mInputStreamId);
+        if (res != OK) {
+            ALOGE("%s: Camera %d: Cannot delete input stream %d: "
+                    "%s (%d)", __FUNCTION__, client->getCameraId(),
+                    mInputStreamId, strerror(-res), res);
+            return res;
+        }
+
+        mInputStreamId = NO_STREAM;
+    }
+
+    if (nullptr != mInputProducer.get()) {
+        mInputProducer->disconnect(NATIVE_WINDOW_API_CPU);
+        mInputProducer.clear();
+    }
+
     return OK;
 }
 
@@ -282,6 +427,45 @@
     return OK;
 }
 
+void ZslProcessor::notifyInputReleased() {
+    Mutex::Autolock l(mInputMutex);
+
+    assert(nullptr != mInputBuffer.get());
+    assert(nullptr != mInputProducer.get());
+
+    sp<GraphicBuffer> gb;
+    sp<Fence> fence;
+    auto rc = mInputProducer->detachNextBuffer(&gb, &fence);
+    if (NO_ERROR != rc) {
+        ALOGE("%s: Failed to detach buffer from input producer: %d",
+            __FUNCTION__, rc);
+        return;
+    }
+
+    BufferItem &item = mInputBuffer->getBufferItem();
+    sp<GraphicBuffer> inputBuffer = item.mGraphicBuffer;
+    if (gb->handle != inputBuffer->handle) {
+        ALOGE("%s: Input mismatch, expected buffer %p received %p", __FUNCTION__,
+            inputBuffer->handle, gb->handle);
+        return;
+    }
+
+    mInputBuffer.clear();
+    ALOGV("%s: Memory optimization, clearing ZSL queue",
+          __FUNCTION__);
+    clearZslResultQueueLocked();
+
+    // Required so we accept more ZSL requests
+    mState = RUNNING;
+}
+
+void ZslProcessor::InputProducerListener::onBufferReleased() {
+    sp<ZslProcessor> parent = mParent.promote();
+    if (nullptr != parent.get()) {
+        parent->notifyInputReleased();
+    }
+}
+
 status_t ZslProcessor::pushToReprocess(int32_t requestId) {
     ALOGV("%s: Send in reprocess request with id %d",
             __FUNCTION__, requestId);
@@ -302,15 +486,38 @@
     nsecs_t candidateTimestamp = getCandidateTimestampLocked(&metadataIdx);
 
     if (candidateTimestamp == -1) {
-        ALOGE("%s: Could not find good candidate for ZSL reprocessing",
+        ALOGV("%s: Could not find good candidate for ZSL reprocessing",
               __FUNCTION__);
         return NOT_ENOUGH_DATA;
+    } else {
+        ALOGV("%s: Found good ZSL candidate idx: %u",
+            __FUNCTION__, (unsigned int) metadataIdx);
     }
 
-    res = mZslStream->enqueueInputBufferByTimestamp(candidateTimestamp,
-                                                    /*actualTimestamp*/NULL);
+    if (nullptr == mInputProducer.get()) {
+        res = client->getCameraDevice()->getInputBufferProducer(
+            &mInputProducer);
+        if (res != OK) {
+            ALOGE("%s: Camera %d: Unable to retrieve input producer: "
+                    "%s (%d)", __FUNCTION__, client->getCameraId(),
+                    strerror(-res), res);
+            return res;
+        }
 
-    if (res == mZslStream->NO_BUFFER_AVAILABLE) {
+        IGraphicBufferProducer::QueueBufferOutput output;
+        res = mInputProducer->connect(new InputProducerListener(this),
+            NATIVE_WINDOW_API_CPU, false, &output);
+        if (res != OK) {
+            ALOGE("%s: Camera %d: Unable to connect to input producer: "
+                    "%s (%d)", __FUNCTION__, client->getCameraId(),
+                    strerror(-res), res);
+            return res;
+        }
+    }
+
+    res = enqueueInputBufferByTimestamp(candidateTimestamp,
+        /*actualTimestamp*/NULL);
+    if (res == NO_BUFFER_AVAILABLE) {
         ALOGV("%s: No ZSL buffers yet", __FUNCTION__);
         return NOT_ENOUGH_DATA;
     } else if (res != OK) {
@@ -348,7 +555,7 @@
         }
 
         int32_t inputStreams[1] =
-                { mZslStreamId };
+                { mInputStreamId };
         res = request.update(ANDROID_REQUEST_INPUT_STREAMS,
                 inputStreams, 1);
         if (res != OK) {
@@ -428,6 +635,70 @@
     return OK;
 }
 
+status_t ZslProcessor::enqueueInputBufferByTimestamp(
+        nsecs_t timestamp,
+        nsecs_t* actualTimestamp) {
+
+    TimestampFinder timestampFinder = TimestampFinder(timestamp);
+
+    mInputBuffer = mProducer->pinSelectedBuffer(timestampFinder,
+        /*waitForFence*/false);
+
+    if (nullptr == mInputBuffer.get()) {
+        ALOGE("%s: No ZSL buffers were available yet", __FUNCTION__);
+        return NO_BUFFER_AVAILABLE;
+    }
+
+    nsecs_t actual = mInputBuffer->getBufferItem().mTimestamp;
+
+    if (actual != timestamp) {
+        // TODO: This is problematic, the metadata queue timestamp should
+        //       usually have a corresponding ZSL buffer with the same timestamp.
+        //       If this is not the case, then it is possible that we will use
+        //       a ZSL buffer from a different request, which can result in
+        //       side effects during the reprocess pass.
+        ALOGW("%s: ZSL buffer candidate search didn't find an exact match --"
+              " requested timestamp = %" PRId64 ", actual timestamp = %" PRId64,
+              __FUNCTION__, timestamp, actual);
+    }
+
+    if (nullptr != actualTimestamp) {
+        *actualTimestamp = actual;
+    }
+
+    BufferItem &item = mInputBuffer->getBufferItem();
+    auto rc = mInputProducer->attachBuffer(&mInputProducerSlot,
+        item.mGraphicBuffer);
+    if (OK != rc) {
+        ALOGE("%s: Failed to attach input ZSL buffer to producer: %d",
+            __FUNCTION__, rc);
+        return rc;
+    }
+
+    IGraphicBufferProducer::QueueBufferOutput output;
+    IGraphicBufferProducer::QueueBufferInput input(item.mTimestamp,
+            item.mIsAutoTimestamp, item.mDataSpace, item.mCrop,
+            item.mScalingMode, item.mTransform, item.mFence);
+    rc = mInputProducer->queueBuffer(mInputProducerSlot, input, &output);
+    if (OK != rc) {
+        ALOGE("%s: Failed to queue ZSL buffer to producer: %d",
+            __FUNCTION__, rc);
+        return rc;
+    }
+
+    return rc;
+}
+
+status_t ZslProcessor::clearInputRingBufferLocked(nsecs_t* latestTimestamp) {
+
+    if (nullptr != latestTimestamp) {
+        *latestTimestamp = mProducer->getLatestTimestamp();
+    }
+    mInputBuffer.clear();
+
+    return mProducer->clear();
+}
+
 status_t ZslProcessor::clearZslQueue() {
     Mutex::Autolock l(mInputMutex);
     // If in middle of capture, can't clear out queue
@@ -437,10 +708,10 @@
 }
 
 status_t ZslProcessor::clearZslQueueLocked() {
-    if (mZslStream != 0) {
+    if (NO_STREAM != mZslStreamId) {
         // clear result metadata list first.
         clearZslResultQueueLocked();
-        return mZslStream->clearInputRingBuffer(&mLatestClearedBufferTimestamp);
+        return clearInputRingBufferLocked(&mLatestClearedBufferTimestamp);
     }
     return OK;
 }
@@ -630,46 +901,5 @@
     return minTimestamp;
 }
 
-void ZslProcessor::onBufferAcquired(const BufferInfo& /*bufferInfo*/) {
-    // Intentionally left empty
-    // Although theoretically we could use this to get better dump info
-}
-
-void ZslProcessor::onBufferReleased(const BufferInfo& bufferInfo) {
-
-    // ignore output buffers
-    if (bufferInfo.mOutput) {
-        return;
-    }
-
-    // Lock mutex only once we know this is an input buffer returned to avoid
-    // potential deadlock
-    Mutex::Autolock l(mInputMutex);
-    // TODO: Verify that the buffer is in our queue by looking at timestamp
-    // theoretically unnecessary unless we change the following assumptions:
-    // -- only 1 buffer reprocessed at a time (which is the case now)
-
-    // Erase entire ZSL queue since we've now completed the capture and preview
-    // is stopped.
-    //
-    // We need to guarantee that if we do two back-to-back captures,
-    // the second won't use a buffer that's older/the same as the first, which
-    // is theoretically possible if we don't clear out the queue and the
-    // selection criteria is something like 'newest'. Clearing out the result
-    // metadata queue on a completed capture ensures we'll only use new timestamp.
-    // Calling clearZslQueueLocked is a guaranteed deadlock because this callback
-    // holds the Camera3Stream internal lock (mLock), and clearZslQueueLocked requires
-    // to hold the same lock.
-    // TODO: need figure out a way to clear the Zsl buffer queue properly. Right now
-    // it is safe not to do so, as back to back ZSL capture requires stop and start
-    // preview, which will flush ZSL queue automatically.
-    ALOGV("%s: Memory optimization, clearing ZSL queue",
-          __FUNCTION__);
-    clearZslResultQueueLocked();
-
-    // Required so we accept more ZSL requests
-    mState = RUNNING;
-}
-
 }; // namespace camera2
 }; // namespace android
diff --git a/services/camera/libcameraservice/api1/client2/ZslProcessor.h b/services/camera/libcameraservice/api1/client2/ZslProcessor.h
index 86c06c6..6113d58 100644
--- a/services/camera/libcameraservice/api1/client2/ZslProcessor.h
+++ b/services/camera/libcameraservice/api1/client2/ZslProcessor.h
@@ -24,10 +24,11 @@
 #include <utils/Condition.h>
 #include <gui/BufferItem.h>
 #include <gui/BufferItemConsumer.h>
+#include <gui/RingBufferConsumer.h>
+#include <gui/IProducerListener.h>
 #include <camera/CameraMetadata.h>
 
 #include "api1/client2/FrameProcessor.h"
-#include "device3/Camera3ZslStream.h"
 
 namespace android {
 
@@ -42,7 +43,6 @@
  * ZSL queue processing for HALv3.0 or newer
  */
 class ZslProcessor :
-                    public camera3::Camera3StreamBufferListener,
             virtual public Thread,
             virtual public FrameProcessor::FilteredListener {
   public:
@@ -81,19 +81,18 @@
 
     void dump(int fd, const Vector<String16>& args) const;
 
-  protected:
-    /**
-     **********************************************
-     * Camera3StreamBufferListener implementation *
-     **********************************************
-     */
-    typedef camera3::Camera3StreamBufferListener::BufferInfo BufferInfo;
-    // Buffer was acquired by the HAL
-    virtual void onBufferAcquired(const BufferInfo& bufferInfo);
-    // Buffer was released by the HAL
-    virtual void onBufferReleased(const BufferInfo& bufferInfo);
-
   private:
+
+    class InputProducerListener : public BnProducerListener {
+    public:
+        InputProducerListener(wp<ZslProcessor> parent) : mParent(parent) {}
+        virtual void onBufferReleased();
+        virtual bool needsReleaseNotify() { return true; }
+
+    private:
+        wp<ZslProcessor> mParent;
+    };
+
     static const nsecs_t kWaitDuration = 10000000; // 10 ms
     nsecs_t mLatestClearedBufferTimestamp;
 
@@ -102,6 +101,8 @@
         LOCKED
     } mState;
 
+    enum { NO_BUFFER_AVAILABLE = BufferQueue::NO_BUFFER_AVAILABLE };
+
     wp<Camera2Client> mClient;
     wp<CaptureSequencer> mSequencer;
 
@@ -114,7 +115,7 @@
     };
 
     int mZslStreamId;
-    sp<camera3::Camera3ZslStream> mZslStream;
+    int mInputStreamId;
 
     struct ZslPair {
         BufferItem buffer;
@@ -135,6 +136,12 @@
 
     bool mHasFocuser;
 
+    // Input buffer queued into HAL
+    sp<RingBufferConsumer::PinnedBufferItem> mInputBuffer;
+    sp<RingBufferConsumer>                   mProducer;
+    sp<IGraphicBufferProducer>               mInputProducer;
+    int                                      mInputProducerSlot;
+
     virtual bool threadLoop();
 
     status_t clearZslQueueLocked();
@@ -145,6 +152,11 @@
 
     nsecs_t getCandidateTimestampLocked(size_t* metadataIdx) const;
 
+    status_t enqueueInputBufferByTimestamp( nsecs_t timestamp,
+        nsecs_t* actualTimestamp);
+    status_t clearInputRingBufferLocked(nsecs_t* latestTimestamp);
+    void notifyInputReleased();
+
     bool isFixedFocusMode(uint8_t afMode) const;
 
     // Update the post-processing metadata with the default still capture request template
diff --git a/services/camera/libcameraservice/api2/CameraDeviceClient.cpp b/services/camera/libcameraservice/api2/CameraDeviceClient.cpp
index b4f8e21..4428f75 100644
--- a/services/camera/libcameraservice/api2/CameraDeviceClient.cpp
+++ b/services/camera/libcameraservice/api2/CameraDeviceClient.cpp
@@ -46,7 +46,7 @@
         const sp<CameraService>& cameraService,
         const sp<hardware::camera2::ICameraDeviceCallbacks>& remoteCallback,
         const String16& clientPackageName,
-        int cameraId,
+        const String8& cameraId,
         int cameraFacing,
         int clientPid,
         uid_t clientUid,
@@ -67,7 +67,7 @@
 CameraDeviceClient::CameraDeviceClient(const sp<CameraService>& cameraService,
         const sp<hardware::camera2::ICameraDeviceCallbacks>& remoteCallback,
         const String16& clientPackageName,
-        int cameraId,
+        const String8& cameraId,
         int cameraFacing,
         int clientPid,
         uid_t clientUid,
@@ -79,22 +79,30 @@
     mRequestIdCounter(0) {
 
     ATRACE_CALL();
-    ALOGI("CameraDeviceClient %d: Opened", cameraId);
+    ALOGI("CameraDeviceClient %s: Opened", cameraId.string());
 }
 
-status_t CameraDeviceClient::initialize(CameraModule *module)
-{
+status_t CameraDeviceClient::initialize(CameraModule *module) {
+    return initializeImpl(module);
+}
+
+status_t CameraDeviceClient::initialize(sp<CameraProviderManager> manager) {
+    return initializeImpl(manager);
+}
+
+template<typename TProviderPtr>
+status_t CameraDeviceClient::initializeImpl(TProviderPtr providerPtr) {
     ATRACE_CALL();
     status_t res;
 
-    res = Camera2ClientBase::initialize(module);
+    res = Camera2ClientBase::initialize(providerPtr);
     if (res != OK) {
         return res;
     }
 
     String8 threadName;
     mFrameProcessor = new FrameProcessorBase(mDevice);
-    threadName = String8::format("CDU-%d-FrameProc", mCameraId);
+    threadName = String8::format("CDU-%s-FrameProc", mCameraIdStr.string());
     mFrameProcessor->run(threadName.string());
 
     mFrameProcessor->registerListener(FRAME_PROCESSOR_LISTENER_MIN_ID,
@@ -138,25 +146,27 @@
     }
 
     if (requests.empty()) {
-        ALOGE("%s: Camera %d: Sent null request. Rejecting request.",
-              __FUNCTION__, mCameraId);
+        ALOGE("%s: Camera %s: Sent null request. Rejecting request.",
+              __FUNCTION__, mCameraIdStr.string());
         return STATUS_ERROR(CameraService::ERROR_ILLEGAL_ARGUMENT, "Empty request list");
     }
 
     List<const CameraMetadata> metadataRequestList;
+    std::list<const SurfaceMap> surfaceMapList;
     submitInfo->mRequestId = mRequestIdCounter;
     uint32_t loopCounter = 0;
 
     for (auto&& request: requests) {
         if (request.mIsReprocess) {
             if (!mInputStream.configured) {
-                ALOGE("%s: Camera %d: no input stream is configured.", __FUNCTION__, mCameraId);
+                ALOGE("%s: Camera %s: no input stream is configured.", __FUNCTION__,
+                        mCameraIdStr.string());
                 return STATUS_ERROR_FMT(CameraService::ERROR_ILLEGAL_ARGUMENT,
-                        "No input configured for camera %d but request is for reprocessing",
-                        mCameraId);
+                        "No input configured for camera %s but request is for reprocessing",
+                        mCameraIdStr.string());
             } else if (streaming) {
-                ALOGE("%s: Camera %d: streaming reprocess requests not supported.", __FUNCTION__,
-                        mCameraId);
+                ALOGE("%s: Camera %s: streaming reprocess requests not supported.", __FUNCTION__,
+                        mCameraIdStr.string());
                 return STATUS_ERROR(CameraService::ERROR_ILLEGAL_ARGUMENT,
                         "Repeating reprocess requests not supported");
             }
@@ -164,13 +174,13 @@
 
         CameraMetadata metadata(request.mMetadata);
         if (metadata.isEmpty()) {
-            ALOGE("%s: Camera %d: Sent empty metadata packet. Rejecting request.",
-                   __FUNCTION__, mCameraId);
+            ALOGE("%s: Camera %s: Sent empty metadata packet. Rejecting request.",
+                   __FUNCTION__, mCameraIdStr.string());
             return STATUS_ERROR(CameraService::ERROR_ILLEGAL_ARGUMENT,
                     "Request settings are empty");
         } else if (request.mSurfaceList.isEmpty()) {
-            ALOGE("%s: Camera %d: Requests must have at least one surface target. "
-                    "Rejecting request.", __FUNCTION__, mCameraId);
+            ALOGE("%s: Camera %s: Requests must have at least one surface target. "
+                    "Rejecting request.", __FUNCTION__, mCameraIdStr.string());
             return STATUS_ERROR(CameraService::ERROR_ILLEGAL_ARGUMENT,
                     "Request has no output targets");
         }
@@ -182,11 +192,11 @@
         }
 
         /**
-         * Write in the output stream IDs which we calculate from
-         * the capture request's list of surface targets
+         * Write in the output stream IDs and map from stream ID to surface ID
+         * which we calculate from the capture request's list of surface target
          */
+        SurfaceMap surfaceMap;
         Vector<int32_t> outputStreamIds;
-        outputStreamIds.setCapacity(request.mSurfaceList.size());
         for (sp<Surface> surface : request.mSurfaceList) {
             if (surface == 0) continue;
 
@@ -195,17 +205,23 @@
 
             // Trying to submit request with surface that wasn't created
             if (idx == NAME_NOT_FOUND) {
-                ALOGE("%s: Camera %d: Tried to submit a request with a surface that"
+                ALOGE("%s: Camera %s: Tried to submit a request with a surface that"
                         " we have not called createStream on",
-                        __FUNCTION__, mCameraId);
+                        __FUNCTION__, mCameraIdStr.string());
                 return STATUS_ERROR(CameraService::ERROR_ILLEGAL_ARGUMENT,
                         "Request targets Surface that is not part of current capture session");
             }
 
-            int streamId = mStreamMap.valueAt(idx);
-            outputStreamIds.push_back(streamId);
-            ALOGV("%s: Camera %d: Appending output stream %d to request",
-                    __FUNCTION__, mCameraId, streamId);
+            const StreamSurfaceId& streamSurfaceId = mStreamMap.valueAt(idx);
+            if (surfaceMap.find(streamSurfaceId.streamId()) == surfaceMap.end()) {
+                surfaceMap[streamSurfaceId.streamId()] = std::vector<size_t>();
+                outputStreamIds.push_back(streamSurfaceId.streamId());
+            }
+            surfaceMap[streamSurfaceId.streamId()].push_back(streamSurfaceId.surfaceId());
+
+            ALOGV("%s: Camera %s: Appending output stream %d surface %d to request",
+                    __FUNCTION__, mCameraIdStr.string(), streamSurfaceId.streamId(),
+                    streamSurfaceId.surfaceId());
         }
 
         metadata.update(ANDROID_REQUEST_OUTPUT_STREAMS, &outputStreamIds[0],
@@ -217,19 +233,22 @@
 
         metadata.update(ANDROID_REQUEST_ID, &(submitInfo->mRequestId), /*size*/1);
         loopCounter++; // loopCounter starts from 1
-        ALOGV("%s: Camera %d: Creating request with ID %d (%d of %zu)",
-              __FUNCTION__, mCameraId, submitInfo->mRequestId, loopCounter, requests.size());
+        ALOGV("%s: Camera %s: Creating request with ID %d (%d of %zu)",
+                __FUNCTION__, mCameraIdStr.string(), submitInfo->mRequestId,
+                loopCounter, requests.size());
 
         metadataRequestList.push_back(metadata);
+        surfaceMapList.push_back(surfaceMap);
     }
     mRequestIdCounter++;
 
     if (streaming) {
-        err = mDevice->setStreamingRequestList(metadataRequestList, &(submitInfo->mLastFrameNumber));
+        err = mDevice->setStreamingRequestList(metadataRequestList, surfaceMapList,
+                &(submitInfo->mLastFrameNumber));
         if (err != OK) {
             String8 msg = String8::format(
-                "Camera %d:  Got error %s (%d) after trying to set streaming request",
-                mCameraId, strerror(-err), err);
+                "Camera %s:  Got error %s (%d) after trying to set streaming request",
+                mCameraIdStr.string(), strerror(-err), err);
             ALOGE("%s: %s", __FUNCTION__, msg.string());
             res = STATUS_ERROR(CameraService::ERROR_INVALID_OPERATION,
                     msg.string());
@@ -238,11 +257,12 @@
             mStreamingRequestId = submitInfo->mRequestId;
         }
     } else {
-        err = mDevice->captureList(metadataRequestList, &(submitInfo->mLastFrameNumber));
+        err = mDevice->captureList(metadataRequestList, surfaceMapList,
+                &(submitInfo->mLastFrameNumber));
         if (err != OK) {
             String8 msg = String8::format(
-                "Camera %d: Got error %s (%d) after trying to submit capture request",
-                mCameraId, strerror(-err), err);
+                "Camera %s: Got error %s (%d) after trying to submit capture request",
+                mCameraIdStr.string(), strerror(-err), err);
             ALOGE("%s: %s", __FUNCTION__, msg.string());
             res = STATUS_ERROR(CameraService::ERROR_INVALID_OPERATION,
                     msg.string());
@@ -250,7 +270,7 @@
         ALOGV("%s: requestId = %d ", __FUNCTION__, submitInfo->mRequestId);
     }
 
-    ALOGV("%s: Camera %d: End of function", __FUNCTION__, mCameraId);
+    ALOGV("%s: Camera %s: End of function", __FUNCTION__, mCameraIdStr.string());
     return res;
 }
 
@@ -274,8 +294,8 @@
 
     Mutex::Autolock idLock(mStreamingRequestIdLock);
     if (mStreamingRequestId != requestId) {
-        String8 msg = String8::format("Camera %d: Canceling request ID %d doesn't match "
-                "current request ID %d", mCameraId, requestId, mStreamingRequestId);
+        String8 msg = String8::format("Camera %s: Canceling request ID %d doesn't match "
+                "current request ID %d", mCameraIdStr.string(), requestId, mStreamingRequestId);
         ALOGE("%s: %s", __FUNCTION__, msg.string());
         return STATUS_ERROR(CameraService::ERROR_ILLEGAL_ARGUMENT, msg.string());
     }
@@ -283,13 +303,13 @@
     err = mDevice->clearStreamingRequest(lastFrameNumber);
 
     if (err == OK) {
-        ALOGV("%s: Camera %d: Successfully cleared streaming request",
-              __FUNCTION__, mCameraId);
+        ALOGV("%s: Camera %s: Successfully cleared streaming request",
+                __FUNCTION__, mCameraIdStr.string());
         mStreamingRequestId = REQUEST_ID_NONE;
     } else {
         res = STATUS_ERROR_FMT(CameraService::ERROR_INVALID_OPERATION,
-                "Camera %d: Error clearing streaming request: %s (%d)",
-                mCameraId, strerror(-err), err);
+                "Camera %s: Error clearing streaming request: %s (%d)",
+                mCameraIdStr.string(), strerror(-err), err);
     }
 
     return res;
@@ -301,9 +321,10 @@
     return binder::Status::ok();
 }
 
-binder::Status CameraDeviceClient::endConfigure(bool isConstrainedHighSpeed) {
-    ALOGV("%s: ending configure (%d input stream, %zu output streams)",
-            __FUNCTION__, mInputStream.configured ? 1 : 0, mStreamMap.size());
+binder::Status CameraDeviceClient::endConfigure(int operatingMode) {
+    ALOGV("%s: ending configure (%d input stream, %zu output surfaces)",
+            __FUNCTION__, mInputStream.configured ? 1 : 0,
+            mStreamMap.size());
 
     binder::Status res;
     if (!(res = checkPidStatus(__FUNCTION__)).isOk()) return res;
@@ -314,7 +335,16 @@
         return STATUS_ERROR(CameraService::ERROR_DISCONNECTED, "Camera device no longer alive");
     }
 
+    if (operatingMode < 0) {
+        String8 msg = String8::format(
+            "Camera %s: Invalid operating mode %d requested", mCameraIdStr.string(), operatingMode);
+        ALOGE("%s: %s", __FUNCTION__, msg.string());
+        return STATUS_ERROR(CameraService::ERROR_ILLEGAL_ARGUMENT,
+                msg.string());
+    }
+
     // Sanitize the high speed session against necessary capability bit.
+    bool isConstrainedHighSpeed = (operatingMode == ICameraDeviceUser::CONSTRAINED_HIGH_SPEED_MODE);
     if (isConstrainedHighSpeed) {
         CameraMetadata staticInfo = mDevice->info();
         camera_metadata_entry_t entry = staticInfo.find(ANDROID_REQUEST_AVAILABLE_CAPABILITIES);
@@ -328,23 +358,23 @@
         }
         if (!isConstrainedHighSpeedSupported) {
             String8 msg = String8::format(
-                "Camera %d: Try to create a constrained high speed configuration on a device"
-                " that doesn't support it.", mCameraId);
+                "Camera %s: Try to create a constrained high speed configuration on a device"
+                " that doesn't support it.", mCameraIdStr.string());
             ALOGE("%s: %s", __FUNCTION__, msg.string());
             return STATUS_ERROR(CameraService::ERROR_ILLEGAL_ARGUMENT,
                     msg.string());
         }
     }
 
-    status_t err = mDevice->configureStreams(isConstrainedHighSpeed);
+    status_t err = mDevice->configureStreams(operatingMode);
     if (err == BAD_VALUE) {
-        String8 msg = String8::format("Camera %d: Unsupported set of inputs/outputs provided",
-                mCameraId);
+        String8 msg = String8::format("Camera %s: Unsupported set of inputs/outputs provided",
+                mCameraIdStr.string());
         ALOGE("%s: %s", __FUNCTION__, msg.string());
         res = STATUS_ERROR(CameraService::ERROR_ILLEGAL_ARGUMENT, msg.string());
     } else if (err != OK) {
-        String8 msg = String8::format("Camera %d: Error configuring streams: %s (%d)",
-                mCameraId, strerror(-err), err);
+        String8 msg = String8::format("Camera %s: Error configuring streams: %s (%d)",
+                mCameraIdStr.string(), strerror(-err), err);
         ALOGE("%s: %s", __FUNCTION__, msg.string());
         res = STATUS_ERROR(CameraService::ERROR_INVALID_OPERATION, msg.string());
     }
@@ -366,7 +396,7 @@
     }
 
     bool isInput = false;
-    ssize_t index = NAME_NOT_FOUND;
+    std::vector<sp<IBinder>> surfaces;
     ssize_t dIndex = NAME_NOT_FOUND;
 
     if (mInputStream.configured && mInputStream.id == streamId) {
@@ -374,26 +404,24 @@
     } else {
         // Guard against trying to delete non-created streams
         for (size_t i = 0; i < mStreamMap.size(); ++i) {
-            if (streamId == mStreamMap.valueAt(i)) {
-                index = i;
+            if (streamId == mStreamMap.valueAt(i).streamId()) {
+                surfaces.push_back(mStreamMap.keyAt(i));
+            }
+        }
+
+        // See if this stream is one of the deferred streams.
+        for (size_t i = 0; i < mDeferredStreams.size(); ++i) {
+            if (streamId == mDeferredStreams[i]) {
+                dIndex = i;
                 break;
             }
         }
 
-        if (index == NAME_NOT_FOUND) {
-            // See if this stream is one of the deferred streams.
-            for (size_t i = 0; i < mDeferredStreams.size(); ++i) {
-                if (streamId == mDeferredStreams[i]) {
-                    dIndex = i;
-                    break;
-                }
-            }
-            if (dIndex == NAME_NOT_FOUND) {
-                String8 msg = String8::format("Camera %d: Invalid stream ID (%d) specified, no such"
-                        " stream created yet", mCameraId, streamId);
-                ALOGW("%s: %s", __FUNCTION__, msg.string());
-                return STATUS_ERROR(CameraService::ERROR_ILLEGAL_ARGUMENT, msg.string());
-            }
+        if (surfaces.empty() && dIndex == NAME_NOT_FOUND) {
+            String8 msg = String8::format("Camera %s: Invalid stream ID (%d) specified, no such"
+                    " stream created yet", mCameraIdStr.string(), streamId);
+            ALOGW("%s: %s", __FUNCTION__, msg.string());
+            return STATUS_ERROR(CameraService::ERROR_ILLEGAL_ARGUMENT, msg.string());
         }
     }
 
@@ -401,17 +429,21 @@
     status_t err = mDevice->deleteStream(streamId);
 
     if (err != OK) {
-        String8 msg = String8::format("Camera %d: Unexpected error %s (%d) when deleting stream %d",
-                mCameraId, strerror(-err), err, streamId);
+        String8 msg = String8::format("Camera %s: Unexpected error %s (%d) when deleting stream %d",
+                mCameraIdStr.string(), strerror(-err), err, streamId);
         ALOGE("%s: %s", __FUNCTION__, msg.string());
         res = STATUS_ERROR(CameraService::ERROR_INVALID_OPERATION, msg.string());
     } else {
         if (isInput) {
             mInputStream.configured = false;
-        } else if (index != NAME_NOT_FOUND) {
-            mStreamMap.removeItemsAt(index);
         } else {
-            mDeferredStreams.removeItemsAt(dIndex);
+            for (auto& surface : surfaces) {
+                mStreamMap.removeItem(surface);
+            }
+
+            if (dIndex != NAME_NOT_FOUND) {
+                mDeferredStreams.removeItemsAt(dIndex);
+            }
         }
     }
 
@@ -429,14 +461,25 @@
 
     Mutex::Autolock icl(mBinderSerializationLock);
 
-    sp<IGraphicBufferProducer> bufferProducer = outputConfiguration.getGraphicBufferProducer();
-    bool deferredConsumer = bufferProducer == NULL;
+    const std::vector<sp<IGraphicBufferProducer>>& bufferProducers =
+            outputConfiguration.getGraphicBufferProducers();
+    size_t numBufferProducers = bufferProducers.size();
+    bool deferredConsumer = outputConfiguration.isDeferred();
+    bool isShared = outputConfiguration.isShared();
+
+    if (numBufferProducers > MAX_SURFACES_PER_STREAM) {
+        ALOGE("%s: GraphicBufferProducer count %zu for stream exceeds limit of %d",
+              __FUNCTION__, bufferProducers.size(), MAX_SURFACES_PER_STREAM);
+        return STATUS_ERROR(CameraService::ERROR_ILLEGAL_ARGUMENT, "Surface count is too high");
+    }
+    bool deferredConsumerOnly = deferredConsumer && numBufferProducers == 0;
     int surfaceType = outputConfiguration.getSurfaceType();
     bool validSurfaceType = ((surfaceType == OutputConfiguration::SURFACE_TYPE_SURFACE_VIEW) ||
             (surfaceType == OutputConfiguration::SURFACE_TYPE_SURFACE_TEXTURE));
+
     if (deferredConsumer && !validSurfaceType) {
         ALOGE("%s: Target surface is invalid: bufferProducer = %p, surfaceType = %d.",
-                __FUNCTION__, bufferProducer.get(), surfaceType);
+                __FUNCTION__, bufferProducers[0].get(), surfaceType);
         return STATUS_ERROR(CameraService::ERROR_ILLEGAL_ARGUMENT, "Target Surface is invalid");
     }
 
@@ -444,116 +487,75 @@
         return STATUS_ERROR(CameraService::ERROR_DISCONNECTED, "Camera device no longer alive");
     }
 
-    int width, height, format;
-    int32_t consumerUsage;
-    android_dataspace dataSpace;
+    std::vector<sp<Surface>> surfaces;
+    std::vector<sp<IBinder>> binders;
     status_t err;
 
     // Create stream for deferred surface case.
-    if (deferredConsumer) {
-        return createDeferredSurfaceStreamLocked(outputConfiguration, newStreamId);
+    if (deferredConsumerOnly) {
+        return createDeferredSurfaceStreamLocked(outputConfiguration, isShared, newStreamId);
     }
 
-    // Don't create multiple streams for the same target surface
-    {
-        ssize_t index = mStreamMap.indexOfKey(IInterface::asBinder(bufferProducer));
+    OutputStreamInfo streamInfo;
+    bool isStreamInfoValid = false;
+    for (auto& bufferProducer : bufferProducers) {
+        // Don't create multiple streams for the same target surface
+        sp<IBinder> binder = IInterface::asBinder(bufferProducer);
+        ssize_t index = mStreamMap.indexOfKey(binder);
         if (index != NAME_NOT_FOUND) {
-            String8 msg = String8::format("Camera %d: Surface already has a stream created for it "
-                    "(ID %zd)", mCameraId, index);
+            String8 msg = String8::format("Camera %s: Surface already has a stream created for it "
+                    "(ID %zd)", mCameraIdStr.string(), index);
             ALOGW("%s: %s", __FUNCTION__, msg.string());
             return STATUS_ERROR(CameraService::ERROR_ALREADY_EXISTS, msg.string());
         }
-    }
 
-    // HACK b/10949105
-    // Query consumer usage bits to set async operation mode for
-    // GLConsumer using controlledByApp parameter.
-    bool useAsync = false;
-    if ((err = bufferProducer->query(NATIVE_WINDOW_CONSUMER_USAGE_BITS,
-            &consumerUsage)) != OK) {
-        String8 msg = String8::format("Camera %d: Failed to query Surface consumer usage: %s (%d)",
-                mCameraId, strerror(-err), err);
-        ALOGE("%s: %s", __FUNCTION__, msg.string());
-        return STATUS_ERROR(CameraService::ERROR_INVALID_OPERATION, msg.string());
-    }
-    if (consumerUsage & GraphicBuffer::USAGE_HW_TEXTURE) {
-        ALOGW("%s: Camera %d with consumer usage flag: 0x%x: Forcing asynchronous mode for stream",
-                __FUNCTION__, mCameraId, consumerUsage);
-        useAsync = true;
-    }
+        sp<Surface> surface;
+        res = createSurfaceFromGbp(streamInfo, isStreamInfoValid, surface, bufferProducer);
 
-    int32_t disallowedFlags = GraphicBuffer::USAGE_HW_VIDEO_ENCODER |
-                              GRALLOC_USAGE_RENDERSCRIPT;
-    int32_t allowedFlags = GraphicBuffer::USAGE_SW_READ_MASK |
-                           GraphicBuffer::USAGE_HW_TEXTURE |
-                           GraphicBuffer::USAGE_HW_COMPOSER;
-    bool flexibleConsumer = (consumerUsage & disallowedFlags) == 0 &&
-            (consumerUsage & allowedFlags) != 0;
+        if (!res.isOk())
+            return res;
 
-    sp<IBinder> binder = IInterface::asBinder(bufferProducer);
-    sp<Surface> surface = new Surface(bufferProducer, useAsync);
-    ANativeWindow *anw = surface.get();
+        if (!isStreamInfoValid) {
+            // Streaming sharing is only supported for IMPLEMENTATION_DEFINED
+            // formats.
+            if (isShared && streamInfo.format != HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED) {
+                String8 msg = String8::format("Camera %s: Stream sharing is only supported for "
+                        "IMPLEMENTATION_DEFINED format", mCameraIdStr.string());
+                ALOGW("%s: %s", __FUNCTION__, msg.string());
+                return STATUS_ERROR(CameraService::ERROR_ILLEGAL_ARGUMENT, msg.string());
+            }
+            isStreamInfoValid = true;
+        }
 
-    if ((err = anw->query(anw, NATIVE_WINDOW_WIDTH, &width)) != OK) {
-        String8 msg = String8::format("Camera %d: Failed to query Surface width: %s (%d)",
-                mCameraId, strerror(-err), err);
-        ALOGE("%s: %s", __FUNCTION__, msg.string());
-        return STATUS_ERROR(CameraService::ERROR_INVALID_OPERATION, msg.string());
-    }
-    if ((err = anw->query(anw, NATIVE_WINDOW_HEIGHT, &height)) != OK) {
-        String8 msg = String8::format("Camera %d: Failed to query Surface height: %s (%d)",
-                mCameraId, strerror(-err), err);
-        ALOGE("%s: %s", __FUNCTION__, msg.string());
-        return STATUS_ERROR(CameraService::ERROR_INVALID_OPERATION, msg.string());
-    }
-    if ((err = anw->query(anw, NATIVE_WINDOW_FORMAT, &format)) != OK) {
-        String8 msg = String8::format("Camera %d: Failed to query Surface format: %s (%d)",
-                mCameraId, strerror(-err), err);
-        ALOGE("%s: %s", __FUNCTION__, msg.string());
-        return STATUS_ERROR(CameraService::ERROR_INVALID_OPERATION, msg.string());
-    }
-    if ((err = anw->query(anw, NATIVE_WINDOW_DEFAULT_DATASPACE,
-                            reinterpret_cast<int*>(&dataSpace))) != OK) {
-        String8 msg = String8::format("Camera %d: Failed to query Surface dataspace: %s (%d)",
-                mCameraId, strerror(-err), err);
-        ALOGE("%s: %s", __FUNCTION__, msg.string());
-        return STATUS_ERROR(CameraService::ERROR_INVALID_OPERATION, msg.string());
-    }
-
-    // FIXME: remove this override since the default format should be
-    //       IMPLEMENTATION_DEFINED. b/9487482
-    if (format >= HAL_PIXEL_FORMAT_RGBA_8888 &&
-        format <= HAL_PIXEL_FORMAT_BGRA_8888) {
-        ALOGW("%s: Camera %d: Overriding format %#x to IMPLEMENTATION_DEFINED",
-              __FUNCTION__, mCameraId, format);
-        format = HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED;
-    }
-
-    // Round dimensions to the nearest dimensions available for this format
-    if (flexibleConsumer && isPublicFormat(format) &&
-            !CameraDeviceClient::roundBufferDimensionNearest(width, height,
-            format, dataSpace, mDevice->info(), /*out*/&width, /*out*/&height)) {
-        String8 msg = String8::format("Camera %d: No supported stream configurations with "
-                "format %#x defined, failed to create output stream", mCameraId, format);
-        ALOGE("%s: %s", __FUNCTION__, msg.string());
-        return STATUS_ERROR(CameraService::ERROR_ILLEGAL_ARGUMENT, msg.string());
+        binders.push_back(IInterface::asBinder(bufferProducer));
+        surfaces.push_back(surface);
     }
 
     int streamId = camera3::CAMERA3_STREAM_ID_INVALID;
-    err = mDevice->createStream(surface, width, height, format, dataSpace,
+    err = mDevice->createStream(surfaces, deferredConsumer, streamInfo.width,
+            streamInfo.height, streamInfo.format, streamInfo.dataSpace,
             static_cast<camera3_stream_rotation_t>(outputConfiguration.getRotation()),
-            &streamId, outputConfiguration.getSurfaceSetID());
+            &streamId, outputConfiguration.getSurfaceSetID(), isShared);
 
     if (err != OK) {
         res = STATUS_ERROR_FMT(CameraService::ERROR_INVALID_OPERATION,
-                "Camera %d: Error creating output stream (%d x %d, fmt %x, dataSpace %x): %s (%d)",
-                mCameraId, width, height, format, dataSpace, strerror(-err), err);
+                "Camera %s: Error creating output stream (%d x %d, fmt %x, dataSpace %x): %s (%d)",
+                mCameraIdStr.string(), streamInfo.width, streamInfo.height, streamInfo.format,
+                streamInfo.dataSpace, strerror(-err), err);
     } else {
-        mStreamMap.add(binder, streamId);
+        int i = 0;
+        for (auto& binder : binders) {
+            ALOGV("%s: mStreamMap add binder %p streamId %d, surfaceId %d",
+                    __FUNCTION__, binder.get(), streamId, i);
+            mStreamMap.add(binder, StreamSurfaceId(streamId, i++));
+        }
 
-        ALOGV("%s: Camera %d: Successfully created a new stream ID %d for output surface"
-                " (%d x %d) with format 0x%x.",
-              __FUNCTION__, mCameraId, streamId, width, height, format);
+        mStreamInfoMap[streamId] = streamInfo;
+
+        ALOGV("%s: Camera %s: Successfully created a new stream ID %d for output surface"
+                    " (%d x %d) with format 0x%x.",
+                  __FUNCTION__, mCameraIdStr.string(), streamId, streamInfo.width,
+                  streamInfo.height, streamInfo.format);
 
         // Set transform flags to ensure preview to be rotated correctly.
         res = setStreamTransformLocked(streamId);
@@ -566,6 +568,7 @@
 
 binder::Status CameraDeviceClient::createDeferredSurfaceStreamLocked(
         const hardware::camera2::params::OutputConfiguration &outputConfiguration,
+        bool isShared,
         /*out*/
         int* newStreamId) {
     int width, height, format, surfaceType;
@@ -590,23 +593,28 @@
         consumerUsage |= GraphicBuffer::USAGE_HW_COMPOSER;
     }
     int streamId = camera3::CAMERA3_STREAM_ID_INVALID;
-    err = mDevice->createStream(/*surface*/nullptr, width, height, format, dataSpace,
+    std::vector<sp<Surface>> noSurface;
+    err = mDevice->createStream(noSurface, /*hasDeferredConsumer*/true, width,
+            height, format, dataSpace,
             static_cast<camera3_stream_rotation_t>(outputConfiguration.getRotation()),
-            &streamId, outputConfiguration.getSurfaceSetID(), consumerUsage);
+            &streamId, outputConfiguration.getSurfaceSetID(), isShared, consumerUsage);
 
     if (err != OK) {
         res = STATUS_ERROR_FMT(CameraService::ERROR_INVALID_OPERATION,
-                "Camera %d: Error creating output stream (%d x %d, fmt %x, dataSpace %x): %s (%d)",
-                mCameraId, width, height, format, dataSpace, strerror(-err), err);
+                "Camera %s: Error creating output stream (%d x %d, fmt %x, dataSpace %x): %s (%d)",
+                mCameraIdStr.string(), width, height, format, dataSpace, strerror(-err), err);
     } else {
         // Can not add streamId to mStreamMap here, as the surface is deferred. Add it to
         // a separate list to track. Once the deferred surface is set, this id will be
         // relocated to mStreamMap.
         mDeferredStreams.push_back(streamId);
 
-        ALOGV("%s: Camera %d: Successfully created a new stream ID %d for a deferred surface"
+        mStreamInfoMap.emplace(std::piecewise_construct, std::forward_as_tuple(streamId),
+                std::forward_as_tuple(width, height, format, dataSpace, consumerUsage));
+
+        ALOGV("%s: Camera %s: Successfully created a new stream ID %d for a deferred surface"
                 " (%d x %d) stream with format 0x%x.",
-              __FUNCTION__, mCameraId, streamId, width, height, format);
+              __FUNCTION__, mCameraIdStr.string(), streamId, width, height, format);
 
         // Set transform flags to ensure preview to be rotated correctly.
         res = setStreamTransformLocked(streamId);
@@ -661,8 +669,8 @@
     }
 
     if (mInputStream.configured) {
-        String8 msg = String8::format("Camera %d: Already has an input stream "
-                "configured (ID %zd)", mCameraId, mInputStream.id);
+        String8 msg = String8::format("Camera %s: Already has an input stream "
+                "configured (ID %zd)", mCameraIdStr.string(), mInputStream.id);
         ALOGE("%s: %s", __FUNCTION__, msg.string() );
         return STATUS_ERROR(CameraService::ERROR_ALREADY_EXISTS, msg.string());
     }
@@ -676,13 +684,13 @@
         mInputStream.format = format;
         mInputStream.id = streamId;
 
-        ALOGV("%s: Camera %d: Successfully created a new input stream ID %d",
-                __FUNCTION__, mCameraId, streamId);
+        ALOGV("%s: Camera %s: Successfully created a new input stream ID %d",
+                __FUNCTION__, mCameraIdStr.string(), streamId);
 
         *newStreamId = streamId;
     } else {
         res = STATUS_ERROR_FMT(CameraService::ERROR_INVALID_OPERATION,
-                "Camera %d: Error creating new input stream: %s (%d)", mCameraId,
+                "Camera %s: Error creating new input stream: %s (%d)", mCameraIdStr.string(),
                 strerror(-err), err);
     }
 
@@ -706,8 +714,8 @@
     status_t err = mDevice->getInputBufferProducer(&producer);
     if (err != OK) {
         res = STATUS_ERROR_FMT(CameraService::ERROR_INVALID_OPERATION,
-                "Camera %d: Error getting input Surface: %s (%d)",
-                mCameraId, strerror(-err), err);
+                "Camera %s: Error getting input Surface: %s (%d)",
+                mCameraIdStr.string(), strerror(-err), err);
     } else {
         inputSurface->name = String16("CameraInput");
         inputSurface->graphicBufferProducer = producer;
@@ -746,6 +754,140 @@
     }
 }
 
+binder::Status CameraDeviceClient::createSurfaceFromGbp(
+        OutputStreamInfo& streamInfo, bool isStreamInfoValid,
+        sp<Surface>& surface, const sp<IGraphicBufferProducer>& gbp) {
+
+    // bufferProducer must be non-null
+    if (gbp == nullptr) {
+        String8 msg = String8::format("Camera %s: Surface is NULL", mCameraIdStr.string());
+        ALOGW("%s: %s", __FUNCTION__, msg.string());
+        return STATUS_ERROR(CameraService::ERROR_ILLEGAL_ARGUMENT, msg.string());
+    }
+    // HACK b/10949105
+    // Query consumer usage bits to set async operation mode for
+    // GLConsumer using controlledByApp parameter.
+    bool useAsync = false;
+    int32_t consumerUsage;
+    status_t err;
+    if ((err = gbp->query(NATIVE_WINDOW_CONSUMER_USAGE_BITS,
+            &consumerUsage)) != OK) {
+        String8 msg = String8::format("Camera %s: Failed to query Surface consumer usage: %s (%d)",
+                mCameraIdStr.string(), strerror(-err), err);
+        ALOGE("%s: %s", __FUNCTION__, msg.string());
+        return STATUS_ERROR(CameraService::ERROR_INVALID_OPERATION, msg.string());
+    }
+    if (consumerUsage & GraphicBuffer::USAGE_HW_TEXTURE) {
+        ALOGW("%s: Camera %s with consumer usage flag: 0x%x: Forcing asynchronous mode for stream",
+                __FUNCTION__, mCameraIdStr.string(), consumerUsage);
+        useAsync = true;
+    }
+
+    int32_t disallowedFlags = GraphicBuffer::USAGE_HW_VIDEO_ENCODER |
+                              GRALLOC_USAGE_RENDERSCRIPT;
+    int32_t allowedFlags = GraphicBuffer::USAGE_SW_READ_MASK |
+                           GraphicBuffer::USAGE_HW_TEXTURE |
+                           GraphicBuffer::USAGE_HW_COMPOSER;
+    bool flexibleConsumer = (consumerUsage & disallowedFlags) == 0 &&
+            (consumerUsage & allowedFlags) != 0;
+
+    surface = new Surface(gbp, useAsync);
+    ANativeWindow *anw = surface.get();
+
+    int width, height, format;
+    android_dataspace dataSpace;
+    if ((err = anw->query(anw, NATIVE_WINDOW_WIDTH, &width)) != OK) {
+        String8 msg = String8::format("Camera %s: Failed to query Surface width: %s (%d)",
+                 mCameraIdStr.string(), strerror(-err), err);
+        ALOGE("%s: %s", __FUNCTION__, msg.string());
+        return STATUS_ERROR(CameraService::ERROR_INVALID_OPERATION, msg.string());
+    }
+    if ((err = anw->query(anw, NATIVE_WINDOW_HEIGHT, &height)) != OK) {
+        String8 msg = String8::format("Camera %s: Failed to query Surface height: %s (%d)",
+                mCameraIdStr.string(), strerror(-err), err);
+        ALOGE("%s: %s", __FUNCTION__, msg.string());
+        return STATUS_ERROR(CameraService::ERROR_INVALID_OPERATION, msg.string());
+    }
+    if ((err = anw->query(anw, NATIVE_WINDOW_FORMAT, &format)) != OK) {
+        String8 msg = String8::format("Camera %s: Failed to query Surface format: %s (%d)",
+                mCameraIdStr.string(), strerror(-err), err);
+        ALOGE("%s: %s", __FUNCTION__, msg.string());
+        return STATUS_ERROR(CameraService::ERROR_INVALID_OPERATION, msg.string());
+    }
+    if ((err = anw->query(anw, NATIVE_WINDOW_DEFAULT_DATASPACE,
+            reinterpret_cast<int*>(&dataSpace))) != OK) {
+        String8 msg = String8::format("Camera %s: Failed to query Surface dataspace: %s (%d)",
+                mCameraIdStr.string(), strerror(-err), err);
+        ALOGE("%s: %s", __FUNCTION__, msg.string());
+        return STATUS_ERROR(CameraService::ERROR_INVALID_OPERATION, msg.string());
+    }
+
+    // FIXME: remove this override since the default format should be
+    //       IMPLEMENTATION_DEFINED. b/9487482
+    if (format >= HAL_PIXEL_FORMAT_RGBA_8888 &&
+        format <= HAL_PIXEL_FORMAT_BGRA_8888) {
+        ALOGW("%s: Camera %s: Overriding format %#x to IMPLEMENTATION_DEFINED",
+                __FUNCTION__, mCameraIdStr.string(), format);
+        format = HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED;
+    }
+    // Round dimensions to the nearest dimensions available for this format
+    if (flexibleConsumer && isPublicFormat(format) &&
+            !CameraDeviceClient::roundBufferDimensionNearest(width, height,
+            format, dataSpace, mDevice->info(), /*out*/&width, /*out*/&height)) {
+        String8 msg = String8::format("Camera %s: No supported stream configurations with "
+                "format %#x defined, failed to create output stream",
+                mCameraIdStr.string(), format);
+        ALOGE("%s: %s", __FUNCTION__, msg.string());
+        return STATUS_ERROR(CameraService::ERROR_ILLEGAL_ARGUMENT, msg.string());
+    }
+
+    if (!isStreamInfoValid) {
+        streamInfo.width = width;
+        streamInfo.height = height;
+        streamInfo.format = format;
+        streamInfo.dataSpace = dataSpace;
+        streamInfo.consumerUsage = consumerUsage;
+        return binder::Status::ok();
+    }
+    if (width != streamInfo.width) {
+        String8 msg = String8::format("Camera %s:Surface width doesn't match: %d vs %d",
+                mCameraIdStr.string(), width, streamInfo.width);
+        ALOGE("%s: %s", __FUNCTION__, msg.string());
+        return STATUS_ERROR(CameraService::ERROR_ILLEGAL_ARGUMENT, msg.string());
+    }
+    if (height != streamInfo.height) {
+        String8 msg = String8::format("Camera %s:Surface height doesn't match: %d vs %d",
+                 mCameraIdStr.string(), height, streamInfo.height);
+        ALOGE("%s: %s", __FUNCTION__, msg.string());
+        return STATUS_ERROR(CameraService::ERROR_ILLEGAL_ARGUMENT, msg.string());
+    }
+    if (format != streamInfo.format) {
+        String8 msg = String8::format("Camera %s:Surface format doesn't match: %d vs %d",
+                 mCameraIdStr.string(), format, streamInfo.format);
+        ALOGE("%s: %s", __FUNCTION__, msg.string());
+        return STATUS_ERROR(CameraService::ERROR_ILLEGAL_ARGUMENT, msg.string());
+    }
+    if (dataSpace != streamInfo.dataSpace) {
+        String8 msg = String8::format("Camera %s:Surface dataSpace doesn't match: %d vs %d",
+                 mCameraIdStr.string(), dataSpace, streamInfo.dataSpace);
+        ALOGE("%s: %s", __FUNCTION__, msg.string());
+        return STATUS_ERROR(CameraService::ERROR_ILLEGAL_ARGUMENT, msg.string());
+    }
+    //At the native side, there isn't a way to check whether 2 surfaces come from the same
+    //surface class type. Use usage flag to approximate the comparison. Treat
+    //different preview surface usage flags as the same.
+    int32_t previewUsageMask =
+            GraphicBuffer::USAGE_HW_TEXTURE | GraphicBuffer::USAGE_HW_COMPOSER;
+    if ((consumerUsage & ~previewUsageMask) != (streamInfo.consumerUsage & ~previewUsageMask)) {
+        String8 msg = String8::format(
+                "Camera %s:Surface usage flag doesn't match 0x%x vs 0x%x",
+                mCameraIdStr.string(), consumerUsage, streamInfo.consumerUsage);
+        ALOGE("%s: %s", __FUNCTION__, msg.string());
+        return STATUS_ERROR(CameraService::ERROR_ILLEGAL_ARGUMENT, msg.string());
+    }
+    return binder::Status::ok();
+}
+
 bool CameraDeviceClient::roundBufferDimensionNearest(int32_t width, int32_t height,
         int32_t format, android_dataspace dataSpace, const CameraMetadata& info,
         /*out*/int32_t* outWidth, /*out*/int32_t* outHeight) {
@@ -828,13 +970,13 @@
         request->swap(metadata);
     } else if (err == BAD_VALUE) {
         res = STATUS_ERROR_FMT(CameraService::ERROR_ILLEGAL_ARGUMENT,
-                "Camera %d: Template ID %d is invalid or not supported: %s (%d)",
-                mCameraId, templateId, strerror(-err), err);
+                "Camera %s: Template ID %d is invalid or not supported: %s (%d)",
+                mCameraIdStr.string(), templateId, strerror(-err), err);
 
     } else {
         res = STATUS_ERROR_FMT(CameraService::ERROR_INVALID_OPERATION,
-                "Camera %d: Error creating default request for template %d: %s (%d)",
-                mCameraId, templateId, strerror(-err), err);
+                "Camera %s: Error creating default request for template %d: %s (%d)",
+                mCameraIdStr.string(), templateId, strerror(-err), err);
     }
     return res;
 }
@@ -882,16 +1024,16 @@
     Mutex::Autolock idLock(mStreamingRequestIdLock);
     if (mStreamingRequestId != REQUEST_ID_NONE) {
         String8 msg = String8::format(
-            "Camera %d: Try to waitUntilIdle when there are active streaming requests",
-            mCameraId);
+            "Camera %s: Try to waitUntilIdle when there are active streaming requests",
+            mCameraIdStr.string());
         ALOGE("%s: %s", __FUNCTION__, msg.string());
         return STATUS_ERROR(CameraService::ERROR_INVALID_OPERATION, msg.string());
     }
     status_t err = mDevice->waitUntilDrained();
     if (err != OK) {
         res = STATUS_ERROR_FMT(CameraService::ERROR_INVALID_OPERATION,
-                "Camera %d: Error waiting to drain: %s (%d)",
-                mCameraId, strerror(-err), err);
+                "Camera %s: Error waiting to drain: %s (%d)",
+                mCameraIdStr.string(), strerror(-err), err);
     }
     ALOGV("%s Done", __FUNCTION__);
     return res;
@@ -917,7 +1059,7 @@
     status_t err = mDevice->flush(lastFrameNumber);
     if (err != OK) {
         res = STATUS_ERROR_FMT(CameraService::ERROR_INVALID_OPERATION,
-                "Camera %d: Error flushing device: %s (%d)", mCameraId, strerror(-err), err);
+                "Camera %s: Error flushing device: %s (%d)", mCameraIdStr.string(), strerror(-err), err);
     }
     return res;
 }
@@ -934,15 +1076,15 @@
     // Guard against trying to prepare non-created streams
     ssize_t index = NAME_NOT_FOUND;
     for (size_t i = 0; i < mStreamMap.size(); ++i) {
-        if (streamId == mStreamMap.valueAt(i)) {
+        if (streamId == mStreamMap.valueAt(i).streamId()) {
             index = i;
             break;
         }
     }
 
     if (index == NAME_NOT_FOUND) {
-        String8 msg = String8::format("Camera %d: Invalid stream ID (%d) specified, no stream "
-              "with that ID exists", mCameraId, streamId);
+        String8 msg = String8::format("Camera %s: Invalid stream ID (%d) specified, no stream "
+              "with that ID exists", mCameraIdStr.string(), streamId);
         ALOGW("%s: %s", __FUNCTION__, msg.string());
         return STATUS_ERROR(CameraService::ERROR_ILLEGAL_ARGUMENT, msg.string());
     }
@@ -952,11 +1094,11 @@
     status_t err = mDevice->prepare(streamId);
     if (err == BAD_VALUE) {
         res = STATUS_ERROR_FMT(CameraService::ERROR_ILLEGAL_ARGUMENT,
-                "Camera %d: Stream %d has already been used, and cannot be prepared",
-                mCameraId, streamId);
+                "Camera %s: Stream %d has already been used, and cannot be prepared",
+                mCameraIdStr.string(), streamId);
     } else if (err != OK) {
         res = STATUS_ERROR_FMT(CameraService::ERROR_INVALID_OPERATION,
-                "Camera %d: Error preparing stream %d: %s (%d)", mCameraId, streamId,
+                "Camera %s: Error preparing stream %d: %s (%d)", mCameraIdStr.string(), streamId,
                 strerror(-err), err);
     }
     return res;
@@ -974,22 +1116,22 @@
     // Guard against trying to prepare non-created streams
     ssize_t index = NAME_NOT_FOUND;
     for (size_t i = 0; i < mStreamMap.size(); ++i) {
-        if (streamId == mStreamMap.valueAt(i)) {
+        if (streamId == mStreamMap.valueAt(i).streamId()) {
             index = i;
             break;
         }
     }
 
     if (index == NAME_NOT_FOUND) {
-        String8 msg = String8::format("Camera %d: Invalid stream ID (%d) specified, no stream "
-              "with that ID exists", mCameraId, streamId);
+        String8 msg = String8::format("Camera %s: Invalid stream ID (%d) specified, no stream "
+              "with that ID exists", mCameraIdStr.string(), streamId);
         ALOGW("%s: %s", __FUNCTION__, msg.string());
         return STATUS_ERROR(CameraService::ERROR_ILLEGAL_ARGUMENT, msg.string());
     }
 
     if (maxCount <= 0) {
-        String8 msg = String8::format("Camera %d: maxCount (%d) must be greater than 0",
-                mCameraId, maxCount);
+        String8 msg = String8::format("Camera %s: maxCount (%d) must be greater than 0",
+                mCameraIdStr.string(), maxCount);
         ALOGE("%s: %s", __FUNCTION__, msg.string());
         return STATUS_ERROR(CameraService::ERROR_ILLEGAL_ARGUMENT, msg.string());
     }
@@ -999,11 +1141,11 @@
     status_t err = mDevice->prepare(maxCount, streamId);
     if (err == BAD_VALUE) {
         res = STATUS_ERROR_FMT(CameraService::ERROR_ILLEGAL_ARGUMENT,
-                "Camera %d: Stream %d has already been used, and cannot be prepared",
-                mCameraId, streamId);
+                "Camera %s: Stream %d has already been used, and cannot be prepared",
+                mCameraIdStr.string(), streamId);
     } else if (err != OK) {
         res = STATUS_ERROR_FMT(CameraService::ERROR_INVALID_OPERATION,
-                "Camera %d: Error preparing stream %d: %s (%d)", mCameraId, streamId,
+                "Camera %s: Error preparing stream %d: %s (%d)", mCameraIdStr.string(), streamId,
                 strerror(-err), err);
     }
 
@@ -1022,15 +1164,15 @@
     // Guard against trying to prepare non-created streams
     ssize_t index = NAME_NOT_FOUND;
     for (size_t i = 0; i < mStreamMap.size(); ++i) {
-        if (streamId == mStreamMap.valueAt(i)) {
+        if (streamId == mStreamMap.valueAt(i).streamId()) {
             index = i;
             break;
         }
     }
 
     if (index == NAME_NOT_FOUND) {
-        String8 msg = String8::format("Camera %d: Invalid stream ID (%d) specified, no stream "
-              "with that ID exists", mCameraId, streamId);
+        String8 msg = String8::format("Camera %s: Invalid stream ID (%d) specified, no stream "
+              "with that ID exists", mCameraIdStr.string(), streamId);
         ALOGW("%s: %s", __FUNCTION__, msg.string());
         return STATUS_ERROR(CameraService::ERROR_ILLEGAL_ARGUMENT, msg.string());
     }
@@ -1040,18 +1182,18 @@
     status_t err = mDevice->tearDown(streamId);
     if (err == BAD_VALUE) {
         res = STATUS_ERROR_FMT(CameraService::ERROR_ILLEGAL_ARGUMENT,
-                "Camera %d: Stream %d is still in use, cannot be torn down",
-                mCameraId, streamId);
+                "Camera %s: Stream %d is still in use, cannot be torn down",
+                mCameraIdStr.string(), streamId);
     } else if (err != OK) {
         res = STATUS_ERROR_FMT(CameraService::ERROR_INVALID_OPERATION,
-                "Camera %d: Error tearing down stream %d: %s (%d)", mCameraId, streamId,
+                "Camera %s: Error tearing down stream %d: %s (%d)", mCameraIdStr.string(), streamId,
                 strerror(-err), err);
     }
 
     return res;
 }
 
-binder::Status CameraDeviceClient::setDeferredConfiguration(int32_t streamId,
+binder::Status CameraDeviceClient::finalizeOutputConfigurations(int32_t streamId,
         const hardware::camera2::params::OutputConfiguration &outputConfiguration) {
     ATRACE_CALL();
 
@@ -1060,24 +1202,41 @@
 
     Mutex::Autolock icl(mBinderSerializationLock);
 
-    sp<IGraphicBufferProducer> bufferProducer = outputConfiguration.getGraphicBufferProducer();
+    const std::vector<sp<IGraphicBufferProducer> >& bufferProducers =
+            outputConfiguration.getGraphicBufferProducers();
 
-    // Client code should guarantee that the surface is from SurfaceView or SurfaceTexture.
-    if (bufferProducer == NULL) {
-        ALOGE("%s: bufferProducer must not be null", __FUNCTION__);
+    if (bufferProducers.size() == 0) {
+        ALOGE("%s: bufferProducers must not be empty", __FUNCTION__);
         return STATUS_ERROR(CameraService::ERROR_ILLEGAL_ARGUMENT, "Target Surface is invalid");
     }
-    // Check if this stram id is one of the deferred streams
-    ssize_t index = NAME_NOT_FOUND;
-    for (size_t i = 0; i < mDeferredStreams.size(); i++) {
-        if (streamId == mDeferredStreams[i]) {
-            index = i;
+
+    // streamId should be in mStreamMap if this stream already has a surface attached
+    // to it. Otherwise, it should be in mDeferredStreams.
+    bool streamIdConfigured = false;
+    ssize_t deferredStreamIndex = NAME_NOT_FOUND;
+    for (size_t i = 0; i < mStreamMap.size(); i++) {
+        if (mStreamMap.valueAt(i).streamId() == streamId) {
+            streamIdConfigured = true;
             break;
         }
     }
-    if (index == NAME_NOT_FOUND) {
-        String8 msg = String8::format("Camera %d: deferred surface is set to a unknown stream"
-                "(ID %d)", mCameraId, streamId);
+    for (size_t i = 0; i < mDeferredStreams.size(); i++) {
+        if (streamId == mDeferredStreams[i]) {
+            deferredStreamIndex = i;
+            break;
+        }
+
+    }
+    if (deferredStreamIndex == NAME_NOT_FOUND && !streamIdConfigured) {
+        String8 msg = String8::format("Camera %s: deferred surface is set to a unknown stream"
+                "(ID %d)", mCameraIdStr.string(), streamId);
+        ALOGW("%s: %s", __FUNCTION__, msg.string());
+        return STATUS_ERROR(CameraService::ERROR_ILLEGAL_ARGUMENT, msg.string());
+    }
+
+    if (mStreamInfoMap[streamId].finalized) {
+        String8 msg = String8::format("Camera %s: finalizeOutputConfigurations has been called"
+                " on stream ID %d", mCameraIdStr.string(), streamId);
         ALOGW("%s: %s", __FUNCTION__, msg.string());
         return STATUS_ERROR(CameraService::ERROR_ILLEGAL_ARGUMENT, msg.string());
     }
@@ -1086,36 +1245,54 @@
         return STATUS_ERROR(CameraService::ERROR_DISCONNECTED, "Camera device no longer alive");
     }
 
-    // Don't create multiple streams for the same target surface
-    {
+    std::vector<sp<Surface>> consumerSurfaces;
+    std::vector<size_t> consumerSurfaceIds;
+    size_t surfaceId = 0;
+    for (auto& bufferProducer : bufferProducers) {
+        // Don't create multiple streams for the same target surface
         ssize_t index = mStreamMap.indexOfKey(IInterface::asBinder(bufferProducer));
         if (index != NAME_NOT_FOUND) {
-            String8 msg = String8::format("Camera %d: Surface already has a stream created "
-                    " for it (ID %zd)", mCameraId, index);
-            ALOGW("%s: %s", __FUNCTION__, msg.string());
-            return STATUS_ERROR(CameraService::ERROR_ALREADY_EXISTS, msg.string());
+            ALOGV("Camera %s: Surface already has a stream created "
+                    " for it (ID %zd)", mCameraIdStr.string(), index);
+            surfaceId++;
+            continue;
         }
+
+        sp<Surface> surface;
+        res = createSurfaceFromGbp(mStreamInfoMap[streamId], true /*isStreamInfoValid*/,
+                surface, bufferProducer);
+
+        if (!res.isOk())
+            return res;
+
+        consumerSurfaces.push_back(surface);
+        consumerSurfaceIds.push_back(surfaceId);
+        surfaceId++;
     }
 
-    status_t err;
-
-    // Always set to async, as we know the deferred surface is for preview streaming.
-    sp<Surface> consumerSurface = new Surface(bufferProducer, /*useAsync*/true);
-
     // Finish the deferred stream configuration with the surface.
-    err = mDevice->setConsumerSurface(streamId, consumerSurface);
+    status_t err;
+    err = mDevice->setConsumerSurfaces(streamId, consumerSurfaces);
     if (err == OK) {
-        sp<IBinder> binder = IInterface::asBinder(bufferProducer);
-        mStreamMap.add(binder, streamId);
-        mDeferredStreams.removeItemsAt(index);
+        for (size_t i = 0; i < consumerSurfaces.size(); i++) {
+            sp<IBinder> binder = IInterface::asBinder(
+                    consumerSurfaces[i]->getIGraphicBufferProducer());
+            ALOGV("%s: mStreamMap add binder %p streamId %d, surfaceId %zu", __FUNCTION__,
+                    binder.get(), streamId, consumerSurfaceIds[i]);
+            mStreamMap.add(binder, StreamSurfaceId(streamId, consumerSurfaceIds[i]));
+        }
+        if (deferredStreamIndex != NAME_NOT_FOUND) {
+            mDeferredStreams.removeItemsAt(deferredStreamIndex);
+        }
+        mStreamInfoMap[streamId].finalized = true;
     } else if (err == NO_INIT) {
         res = STATUS_ERROR_FMT(CameraService::ERROR_ILLEGAL_ARGUMENT,
-                "Camera %d: Deferred surface is invalid: %s (%d)",
-                mCameraId, strerror(-err), err);
+                "Camera %s: Deferred surface is invalid: %s (%d)",
+                mCameraIdStr.string(), strerror(-err), err);
     } else {
         res = STATUS_ERROR_FMT(CameraService::ERROR_INVALID_OPERATION,
-                "Camera %d: Error setting output stream deferred surface: %s (%d)",
-                mCameraId, strerror(-err), err);
+                "Camera %s: Error setting output stream deferred surface: %s (%d)",
+                mCameraIdStr.string(), strerror(-err), err);
     }
 
     return res;
@@ -1126,35 +1303,34 @@
 }
 
 status_t CameraDeviceClient::dumpClient(int fd, const Vector<String16>& args) {
-    String8 result;
-    result.appendFormat("CameraDeviceClient[%d] (%p) dump:\n",
-            mCameraId,
+    dprintf(fd, "  CameraDeviceClient[%s] (%p) dump:\n",
+            mCameraIdStr.string(),
             (getRemoteCallback() != NULL ?
                     IInterface::asBinder(getRemoteCallback()).get() : NULL) );
-    result.appendFormat("  Current client UID %u\n", mClientUid);
+    dprintf(fd, "    Current client UID %u\n", mClientUid);
 
-    result.append("  State:\n");
-    result.appendFormat("    Request ID counter: %d\n", mRequestIdCounter);
+    dprintf(fd, "    State:\n");
+    dprintf(fd, "      Request ID counter: %d\n", mRequestIdCounter);
     if (mInputStream.configured) {
-        result.appendFormat("    Current input stream ID: %d\n",
-                    mInputStream.id);
+        dprintf(fd, "      Current input stream ID: %d\n", mInputStream.id);
     } else {
-        result.append("    No input stream configured.\n");
+        dprintf(fd, "      No input stream configured.\n");
     }
     if (!mStreamMap.isEmpty()) {
-        result.append("    Current output stream IDs:\n");
+        dprintf(fd, "      Current output stream/surface IDs:\n");
         for (size_t i = 0; i < mStreamMap.size(); i++) {
-            result.appendFormat("      Stream %d\n", mStreamMap.valueAt(i));
+            dprintf(fd, "        Stream %d Surface %d\n",
+                                mStreamMap.valueAt(i).streamId(),
+                                mStreamMap.valueAt(i).surfaceId());
         }
     } else if (!mDeferredStreams.isEmpty()) {
-        result.append("    Current deferred surface output stream IDs:\n");
+        dprintf(fd, "      Current deferred surface output stream IDs:\n");
         for (auto& streamId : mDeferredStreams) {
-            result.appendFormat("      Stream %d\n", streamId);
+            dprintf(fd, "        Stream %d\n", streamId);
         }
     } else {
-        result.append("    No output streams configured.\n");
+        dprintf(fd, "      No output streams configured.\n");
     }
-    write(fd, result.string(), result.size());
     // TODO: print dynamic/request section from most recent requests
     mFrameProcessor->dump(fd, args);
 
@@ -1210,18 +1386,26 @@
     }
 }
 
+void CameraDeviceClient::notifyRequestQueueEmpty() {
+    // Thread safe. Don't bother locking.
+    sp<hardware::camera2::ICameraDeviceCallbacks> remoteCb = getRemoteCallback();
+    if (remoteCb != 0) {
+        remoteCb->onRequestQueueEmpty();
+    }
+}
+
 void CameraDeviceClient::detachDevice() {
     if (mDevice == 0) return;
 
-    ALOGV("Camera %d: Stopping processors", mCameraId);
+    ALOGV("Camera %s: Stopping processors", mCameraIdStr.string());
 
     mFrameProcessor->removeListener(FRAME_PROCESSOR_LISTENER_MIN_ID,
                                     FRAME_PROCESSOR_LISTENER_MAX_ID,
                                     /*listener*/this);
     mFrameProcessor->requestExit();
-    ALOGV("Camera %d: Waiting for threads", mCameraId);
+    ALOGV("Camera %s: Waiting for threads", mCameraIdStr.string());
     mFrameProcessor->join();
-    ALOGV("Camera %d: Disconnecting device", mCameraId);
+    ALOGV("Camera %s: Disconnecting device", mCameraIdStr.string());
 
     // WORKAROUND: HAL refuses to disconnect while there's streams in flight
     {
diff --git a/services/camera/libcameraservice/api2/CameraDeviceClient.h b/services/camera/libcameraservice/api2/CameraDeviceClient.h
index de283ea..2a95c88 100644
--- a/services/camera/libcameraservice/api2/CameraDeviceClient.h
+++ b/services/camera/libcameraservice/api2/CameraDeviceClient.h
@@ -42,7 +42,7 @@
     CameraDeviceClientBase(const sp<CameraService>& cameraService,
             const sp<hardware::camera2::ICameraDeviceCallbacks>& remoteCallback,
             const String16& clientPackageName,
-            int cameraId,
+            const String8& cameraId,
             int cameraFacing,
             int clientPid,
             uid_t clientUid,
@@ -70,70 +70,70 @@
             const hardware::camera2::CaptureRequest& request,
             bool streaming = false,
             /*out*/
-            hardware::camera2::utils::SubmitInfo *submitInfo = nullptr);
+            hardware::camera2::utils::SubmitInfo *submitInfo = nullptr) override;
     // List of requests are copied.
     virtual binder::Status submitRequestList(
             const std::vector<hardware::camera2::CaptureRequest>& requests,
             bool streaming = false,
             /*out*/
-            hardware::camera2::utils::SubmitInfo *submitInfo = nullptr);
+            hardware::camera2::utils::SubmitInfo *submitInfo = nullptr) override;
     virtual binder::Status cancelRequest(int requestId,
             /*out*/
-            int64_t* lastFrameNumber = NULL);
+            int64_t* lastFrameNumber = NULL) override;
 
-    virtual binder::Status beginConfigure();
+    virtual binder::Status beginConfigure() override;
 
-    virtual binder::Status endConfigure(bool isConstrainedHighSpeed = false);
+    virtual binder::Status endConfigure(int operatingMode) override;
 
     // Returns -EBUSY if device is not idle
-    virtual binder::Status deleteStream(int streamId);
+    virtual binder::Status deleteStream(int streamId) override;
 
     virtual binder::Status createStream(
             const hardware::camera2::params::OutputConfiguration &outputConfiguration,
             /*out*/
-            int32_t* newStreamId = NULL);
+            int32_t* newStreamId = NULL) override;
 
     // Create an input stream of width, height, and format.
     virtual binder::Status createInputStream(int width, int height, int format,
             /*out*/
-            int32_t* newStreamId = NULL);
+            int32_t* newStreamId = NULL) override;
 
     // Get the buffer producer of the input stream
     virtual binder::Status getInputSurface(
             /*out*/
-            view::Surface *inputSurface);
+            view::Surface *inputSurface) override;
 
     // Create a request object from a template.
     virtual binder::Status createDefaultRequest(int templateId,
             /*out*/
-            hardware::camera2::impl::CameraMetadataNative* request);
+            hardware::camera2::impl::CameraMetadataNative* request) override;
 
     // Get the static metadata for the camera
     // -- Caller owns the newly allocated metadata
     virtual binder::Status getCameraInfo(
             /*out*/
-            hardware::camera2::impl::CameraMetadataNative* cameraCharacteristics);
+            hardware::camera2::impl::CameraMetadataNative* cameraCharacteristics) override;
 
     // Wait until all the submitted requests have finished processing
-    virtual binder::Status waitUntilIdle();
+    virtual binder::Status waitUntilIdle() override;
 
     // Flush all active and pending requests as fast as possible
     virtual binder::Status flush(
             /*out*/
-            int64_t* lastFrameNumber = NULL);
+            int64_t* lastFrameNumber = NULL) override;
 
     // Prepare stream by preallocating its buffers
-    virtual binder::Status prepare(int32_t streamId);
+    virtual binder::Status prepare(int32_t streamId) override;
 
     // Tear down stream resources by freeing its unused buffers
-    virtual binder::Status tearDown(int32_t streamId);
+    virtual binder::Status tearDown(int32_t streamId) override;
 
     // Prepare stream by preallocating up to maxCount of its buffers
-    virtual binder::Status prepare2(int32_t maxCount, int32_t streamId);
+    virtual binder::Status prepare2(int32_t maxCount, int32_t streamId) override;
 
-    // Set the deferred surface for a stream.
-    virtual binder::Status setDeferredConfiguration(int32_t streamId,
-            const hardware::camera2::params::OutputConfiguration &outputConfiguration);
+    // Finalize the output configurations with surfaces not added before.
+    virtual binder::Status finalizeOutputConfigurations(int32_t streamId,
+            const hardware::camera2::params::OutputConfiguration &outputConfiguration) override;
 
     /**
      * Interface used by CameraService
@@ -142,14 +142,15 @@
     CameraDeviceClient(const sp<CameraService>& cameraService,
             const sp<hardware::camera2::ICameraDeviceCallbacks>& remoteCallback,
             const String16& clientPackageName,
-            int cameraId,
+            const String8& cameraId,
             int cameraFacing,
             int clientPid,
             uid_t clientUid,
             int servicePid);
     virtual ~CameraDeviceClient();
 
-    virtual status_t      initialize(CameraModule *module);
+    virtual status_t      initialize(CameraModule *module) override;
+    virtual status_t      initialize(sp<CameraProviderManager> manager) override;
 
     virtual status_t      dump(int fd, const Vector<String16>& args);
 
@@ -164,6 +165,7 @@
                              const CaptureResultExtras& resultExtras);
     virtual void notifyShutter(const CaptureResultExtras& resultExtras, nsecs_t timestamp);
     virtual void notifyPrepared(int streamId);
+    virtual void notifyRequestQueueEmpty();
     virtual void notifyRepeatingRequestError(long lastFrameNumber);
 
     /**
@@ -178,6 +180,52 @@
     status_t              getRotationTransformLocked(/*out*/int32_t* transform);
 
 private:
+    // StreamSurfaceId encapsulates streamId + surfaceId for a particular surface.
+    // streamId specifies the index of the stream the surface belongs to, and the
+    // surfaceId specifies the index of the surface within the stream. (one stream
+    // could contain multiple surfaces.)
+    class StreamSurfaceId final {
+    public:
+        StreamSurfaceId() {
+            mStreamId = -1;
+            mSurfaceId = -1;
+        }
+        StreamSurfaceId(int32_t streamId, int32_t surfaceId) {
+            mStreamId = streamId;
+            mSurfaceId = surfaceId;
+        }
+        int32_t streamId() const {
+            return mStreamId;
+        }
+        int32_t surfaceId() const {
+            return mSurfaceId;
+        }
+
+    private:
+        int32_t mStreamId;
+        int32_t mSurfaceId;
+
+    }; // class StreamSurfaceId
+
+    // OutputStreamInfo describes the property of a camera stream.
+    class OutputStreamInfo {
+    public:
+        int width;
+        int height;
+        int format;
+        android_dataspace dataSpace;
+        int32_t consumerUsage;
+        bool finalized = false;
+        OutputStreamInfo() :
+                width(-1), height(-1), format(-1), dataSpace(HAL_DATASPACE_UNKNOWN),
+                consumerUsage(0) {}
+        OutputStreamInfo(int _width, int _height, int _format, android_dataspace _dataSpace,
+                int32_t _consumerUsage) :
+                    width(_width), height(_height), format(_format),
+                    dataSpace(_dataSpace), consumerUsage(_consumerUsage) {}
+    };
+
+private:
     /** ICameraDeviceUser interface-related private members */
 
     /** Preview callback related members */
@@ -185,6 +233,9 @@
     static const int32_t FRAME_PROCESSOR_LISTENER_MIN_ID = 0;
     static const int32_t FRAME_PROCESSOR_LISTENER_MAX_ID = 0x7fffffffL;
 
+    template<typename TProviderPtr>
+    status_t      initializeImpl(TProviderPtr providerPtr);
+
     /** Utility members */
     binder::Status checkPidStatus(const char* checkLocation);
     bool enforceRequestPermissions(CameraMetadata& metadata);
@@ -195,6 +246,7 @@
     // Create an output stream with surface deferred for future.
     binder::Status createDeferredSurfaceStreamLocked(
             const hardware::camera2::params::OutputConfiguration &outputConfiguration,
+            bool isShared,
             int* newStreamId = NULL);
 
     // Set the stream transform flags to automatically rotate the camera stream for preview use
@@ -211,8 +263,13 @@
     //check if format is not custom format
     static bool isPublicFormat(int32_t format);
 
-    // IGraphicsBufferProducer binder -> Stream ID for output streams
-    KeyedVector<sp<IBinder>, int> mStreamMap;
+    // Create a Surface from an IGraphicBufferProducer. Returns error if
+    // IGraphicBufferProducer's property doesn't match with streamInfo
+    binder::Status createSurfaceFromGbp(OutputStreamInfo& streamInfo, bool isStreamInfoValid,
+            sp<Surface>& surface, const sp<IGraphicBufferProducer>& gbp);
+
+    // IGraphicsBufferProducer binder -> Stream ID + Surface ID for output streams
+    KeyedVector<sp<IBinder>, StreamSurfaceId> mStreamMap;
 
     struct InputStreamConfiguration {
         bool configured;
@@ -233,6 +290,11 @@
     // as there are no surfaces available and can not be put into mStreamMap. Once the deferred
     // Surface is configured, the stream id will be moved to mStreamMap.
     Vector<int32_t> mDeferredStreams;
+
+    // stream ID -> outputStreamInfo mapping
+    std::unordered_map<int32_t, OutputStreamInfo> mStreamInfoMap;
+
+    static const int32_t MAX_SURFACES_PER_STREAM = 2;
 };
 
 }; // namespace android
diff --git a/services/camera/libcameraservice/common/Camera2ClientBase.cpp b/services/camera/libcameraservice/common/Camera2ClientBase.cpp
index ccd1e4d..93a584b 100644
--- a/services/camera/libcameraservice/common/Camera2ClientBase.cpp
+++ b/services/camera/libcameraservice/common/Camera2ClientBase.cpp
@@ -47,7 +47,7 @@
         const sp<CameraService>& cameraService,
         const sp<TCamCallbacks>& remoteCallback,
         const String16& clientPackageName,
-        int cameraId,
+        const String8& cameraId,
         int cameraFacing,
         int clientPid,
         uid_t clientUid,
@@ -55,10 +55,10 @@
         TClientBase(cameraService, remoteCallback, clientPackageName,
                 cameraId, cameraFacing, clientPid, clientUid, servicePid),
         mSharedCameraCallbacks(remoteCallback),
-        mDeviceVersion(cameraService->getDeviceVersion(cameraId)),
+        mDeviceVersion(cameraService->getDeviceVersion(TClientBase::mCameraIdStr)),
         mDeviceActive(false)
 {
-    ALOGI("Camera %d: Opened. Client: %s (PID %d, UID %d)", cameraId,
+    ALOGI("Camera %s: Opened. Client: %s (PID %d, UID %d)", cameraId.string(),
             String8(clientPackageName).string(), clientPid, clientUid);
 
     mInitialClientPid = clientPid;
@@ -80,9 +80,20 @@
 
 template <typename TClientBase>
 status_t Camera2ClientBase<TClientBase>::initialize(CameraModule *module) {
+    return initializeImpl(module);
+}
+
+template <typename TClientBase>
+status_t Camera2ClientBase<TClientBase>::initialize(sp<CameraProviderManager> manager) {
+    return initializeImpl(manager);
+}
+
+template <typename TClientBase>
+template <typename TProviderPtr>
+status_t Camera2ClientBase<TClientBase>::initializeImpl(TProviderPtr providerPtr) {
     ATRACE_CALL();
-    ALOGV("%s: Initializing client for camera %d", __FUNCTION__,
-          TClientBase::mCameraId);
+    ALOGV("%s: Initializing client for camera %s", __FUNCTION__,
+          TClientBase::mCameraIdStr.string());
     status_t res;
 
     // Verify ops permissions
@@ -92,15 +103,15 @@
     }
 
     if (mDevice == NULL) {
-        ALOGE("%s: Camera %d: No device connected",
-                __FUNCTION__, TClientBase::mCameraId);
+        ALOGE("%s: Camera %s: No device connected",
+                __FUNCTION__, TClientBase::mCameraIdStr.string());
         return NO_INIT;
     }
 
-    res = mDevice->initialize(module);
+    res = mDevice->initialize(providerPtr);
     if (res != OK) {
-        ALOGE("%s: Camera %d: unable to initialize device: %s (%d)",
-                __FUNCTION__, TClientBase::mCameraId, strerror(-res), res);
+        ALOGE("%s: Camera %s: unable to initialize device: %s (%d)",
+                __FUNCTION__, TClientBase::mCameraIdStr.string(), strerror(-res), res);
         return res;
     }
 
@@ -118,8 +129,8 @@
 
     disconnect();
 
-    ALOGI("Closed Camera %d. Client was: %s (PID %d, UID %u)",
-            TClientBase::mCameraId,
+    ALOGI("Closed Camera %s. Client was: %s (PID %d, UID %u)",
+            TClientBase::mCameraIdStr.string(),
             String8(TClientBase::mClientPackageName).string(),
             mInitialClientPid, TClientBase::mClientUid);
 }
@@ -128,8 +139,8 @@
 status_t Camera2ClientBase<TClientBase>::dumpClient(int fd,
                                               const Vector<String16>& args) {
     String8 result;
-    result.appendFormat("Camera2ClientBase[%d] (%p) PID: %d, dump:\n",
-            TClientBase::mCameraId,
+    result.appendFormat("Camera2ClientBase[%s] (%p) PID: %d, dump:\n",
+            TClientBase::mCameraIdStr.string(),
             (TClientBase::getRemoteCallback() != NULL ?
                     IInterface::asBinder(TClientBase::getRemoteCallback()).get() : NULL),
             TClientBase::mClientPid);
@@ -180,13 +191,13 @@
     if (callingPid != TClientBase::mClientPid &&
         callingPid != TClientBase::mServicePid) return res;
 
-    ALOGV("Camera %d: Shutting down", TClientBase::mCameraId);
+    ALOGV("Camera %s: Shutting down", TClientBase::mCameraIdStr.string());
 
     detachDevice();
 
     CameraService::BasicClient::disconnect();
 
-    ALOGV("Camera %d: Shut down complete complete", TClientBase::mCameraId);
+    ALOGV("Camera %s: Shut down complete complete", TClientBase::mCameraIdStr.string());
 
     return res;
 }
@@ -198,7 +209,7 @@
 
     mDevice.clear();
 
-    ALOGV("Camera %d: Detach complete", TClientBase::mCameraId);
+    ALOGV("Camera %s: Detach complete", TClientBase::mCameraIdStr.string());
 }
 
 template <typename TClientBase>
@@ -211,10 +222,10 @@
     if (TClientBase::mClientPid != 0 &&
         getCallingPid() != TClientBase::mClientPid) {
 
-        ALOGE("%s: Camera %d: Connection attempt from pid %d; "
+        ALOGE("%s: Camera %s: Connection attempt from pid %d; "
                 "current locked to pid %d",
                 __FUNCTION__,
-                TClientBase::mCameraId,
+                TClientBase::mCameraIdStr.string(),
                 getCallingPid(),
                 TClientBase::mClientPid);
         return BAD_VALUE;
@@ -242,8 +253,7 @@
 void Camera2ClientBase<TClientBase>::notifyIdle() {
     if (mDeviceActive) {
         getCameraService()->updateProxyDeviceState(
-            ICameraServiceProxy::CAMERA_STATE_IDLE,
-            String8::format("%d", TClientBase::mCameraId));
+            ICameraServiceProxy::CAMERA_STATE_IDLE, TClientBase::mCameraIdStr);
     }
     mDeviceActive = false;
 
@@ -258,8 +268,7 @@
 
     if (!mDeviceActive) {
         getCameraService()->updateProxyDeviceState(
-            ICameraServiceProxy::CAMERA_STATE_ACTIVE,
-            String8::format("%d", TClientBase::mCameraId));
+            ICameraServiceProxy::CAMERA_STATE_ACTIVE, TClientBase::mCameraIdStr);
     }
     mDeviceActive = true;
 
@@ -307,6 +316,12 @@
 }
 
 template <typename TClientBase>
+void Camera2ClientBase<TClientBase>::notifyRequestQueueEmpty() {
+
+    ALOGV("%s: Request queue now empty", __FUNCTION__);
+}
+
+template <typename TClientBase>
 void Camera2ClientBase<TClientBase>::notifyRepeatingRequestError(long lastFrameNumber) {
     (void)lastFrameNumber;
 
@@ -316,7 +331,7 @@
 
 template <typename TClientBase>
 int Camera2ClientBase<TClientBase>::getCameraId() const {
-    return TClientBase::mCameraId;
+    return std::stoi(TClientBase::mCameraIdStr.string());
 }
 
 template <typename TClientBase>
@@ -331,7 +346,7 @@
 
 template <typename TClientBase>
 const sp<CameraService>& Camera2ClientBase<TClientBase>::getCameraService() {
-    return TClientBase::mCameraService;
+    return TClientBase::sCameraService;
 }
 
 template <typename TClientBase>
diff --git a/services/camera/libcameraservice/common/Camera2ClientBase.h b/services/camera/libcameraservice/common/Camera2ClientBase.h
index dbbf638..a4c08ef 100644
--- a/services/camera/libcameraservice/common/Camera2ClientBase.h
+++ b/services/camera/libcameraservice/common/Camera2ClientBase.h
@@ -49,7 +49,7 @@
     Camera2ClientBase(const sp<CameraService>& cameraService,
                       const sp<TCamCallbacks>& remoteCallback,
                       const String16& clientPackageName,
-                      int cameraId,
+                      const String8& cameraId,
                       int cameraFacing,
                       int clientPid,
                       uid_t clientUid,
@@ -57,6 +57,7 @@
     virtual ~Camera2ClientBase();
 
     virtual status_t      initialize(CameraModule *module);
+    virtual status_t      initialize(sp<CameraProviderManager> manager);
     virtual status_t      dumpClient(int fd, const Vector<String16>& args);
 
     /**
@@ -73,6 +74,7 @@
     virtual void          notifyAutoWhitebalance(uint8_t newState,
                                                  int triggerId);
     virtual void          notifyPrepared(int streamId);
+    virtual void          notifyRequestQueueEmpty();
     virtual void          notifyRepeatingRequestError(long lastFrameNumber);
 
     int                   getCameraId() const;
@@ -139,6 +141,10 @@
     virtual void          detachDevice();
 
     bool                  mDeviceActive;
+
+private:
+    template<typename TProviderPtr>
+    status_t              initializeImpl(TProviderPtr providerPtr);
 };
 
 }; // namespace android
diff --git a/services/camera/libcameraservice/common/CameraDeviceBase.h b/services/camera/libcameraservice/common/CameraDeviceBase.h
index 984d84b..f9b062a 100644
--- a/services/camera/libcameraservice/common/CameraDeviceBase.h
+++ b/services/camera/libcameraservice/common/CameraDeviceBase.h
@@ -17,6 +17,8 @@
 #ifndef ANDROID_SERVERS_CAMERA_CAMERADEVICEBASE_H
 #define ANDROID_SERVERS_CAMERA_CAMERADEVICEBASE_H
 
+#include <list>
+
 #include <utils/RefBase.h>
 #include <utils/String8.h>
 #include <utils/String16.h>
@@ -35,6 +37,11 @@
 
 namespace android {
 
+class CameraProviderManager;
+
+// Mapping of output stream index to surface ids
+typedef std::unordered_map<int, std::vector<size_t> > SurfaceMap;
+
 /**
  * Base interface for version >= 2 camera device classes, which interface to
  * camera HAL device versions >= 2.
@@ -46,9 +53,10 @@
     /**
      * The device's camera ID
      */
-    virtual int      getId() const = 0;
+    virtual const String8& getId() const = 0;
 
     virtual status_t initialize(CameraModule *module) = 0;
+    virtual status_t initialize(sp<CameraProviderManager> manager) = 0;
     virtual status_t disconnect() = 0;
 
     virtual status_t dump(int fd, const Vector<String16> &args) = 0;
@@ -70,6 +78,7 @@
      * Output lastFrameNumber is the expected last frame number of the list of requests.
      */
     virtual status_t captureList(const List<const CameraMetadata> &requests,
+                                 const std::list<const SurfaceMap> &surfaceMaps,
                                  int64_t *lastFrameNumber = NULL) = 0;
 
     /**
@@ -85,6 +94,7 @@
      * Output lastFrameNumber is the last frame number of the previous streaming request.
      */
     virtual status_t setStreamingRequestList(const List<const CameraMetadata> &requests,
+                                             const std::list<const SurfaceMap> &surfaceMaps,
                                              int64_t *lastFrameNumber = NULL) = 0;
 
     /**
@@ -111,7 +121,20 @@
             uint32_t width, uint32_t height, int format,
             android_dataspace dataSpace, camera3_stream_rotation_t rotation, int *id,
             int streamSetId = camera3::CAMERA3_STREAM_SET_ID_INVALID,
-            uint32_t consumerUsage = 0) = 0;
+            bool isShared = false, uint32_t consumerUsage = 0) = 0;
+
+    /**
+     * Create an output stream of the requested size, format, rotation and
+     * dataspace with a number of consumers.
+     *
+     * For HAL_PIXEL_FORMAT_BLOB formats, the width and height should be the
+     * logical dimensions of the buffer, not the number of bytes.
+     */
+    virtual status_t createStream(const std::vector<sp<Surface>>& consumers,
+            bool hasDeferredConsumer, uint32_t width, uint32_t height, int format,
+            android_dataspace dataSpace, camera3_stream_rotation_t rotation, int *id,
+            int streamSetId = camera3::CAMERA3_STREAM_SET_ID_INVALID,
+            bool isShared = false, uint32_t consumerUsage = 0) = 0;
 
     /**
      * Create an input stream of width, height, and format.
@@ -161,7 +184,7 @@
      * - BAD_VALUE if the set of streams was invalid (e.g. fmts or sizes)
      * - INVALID_OPERATION if the device was in the wrong state
      */
-    virtual status_t configureStreams(bool isConstrainedHighSpeed = false) = 0;
+    virtual status_t configureStreams(int operatingMode = 0) = 0;
 
     // get the buffer producer of the input stream
     virtual status_t getInputBufferProducer(
@@ -204,6 +227,7 @@
         virtual void notifyShutter(const CaptureResultExtras &resultExtras,
                 nsecs_t timestamp) = 0;
         virtual void notifyPrepared(int streamId) = 0;
+        virtual void notifyRequestQueueEmpty() = 0;
 
         // Required only for API1
         virtual void notifyAutoFocus(uint8_t newState, int triggerId) = 0;
@@ -317,7 +341,8 @@
     /**
      * Set the deferred consumer surface and finish the rest of the stream configuration.
      */
-    virtual status_t setConsumerSurface(int streamId, sp<Surface> consumer) = 0;
+    virtual status_t setConsumerSurfaces(int streamId,
+            const std::vector<sp<Surface>>& consumers) = 0;
 
 };
 
diff --git a/services/camera/libcameraservice/common/CameraProviderManager.cpp b/services/camera/libcameraservice/common/CameraProviderManager.cpp
new file mode 100644
index 0000000..f8b2908
--- /dev/null
+++ b/services/camera/libcameraservice/common/CameraProviderManager.cpp
@@ -0,0 +1,1243 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "CameraProviderManager"
+#define ATRACE_TAG ATRACE_TAG_CAMERA
+//#define LOG_NDEBUG 0
+
+#include "CameraProviderManager.h"
+
+#include <chrono>
+#include <inttypes.h>
+#include <hidl/ServiceManagement.h>
+
+namespace android {
+
+using namespace ::android::hardware::camera;
+using namespace ::android::hardware::camera::common::V1_0;
+
+namespace {
+// Hardcoded name for the passthrough HAL implementation, since it can't be discovered via the
+// service manager
+const std::string kLegacyProviderName("legacy/0");
+
+// Slash-separated list of provider types to consider for use via the old camera API
+const std::string kStandardProviderTypes("internal/legacy");
+
+} // anonymous namespace
+
+CameraProviderManager::HardwareServiceInteractionProxy
+CameraProviderManager::sHardwareServiceInteractionProxy{};
+
+CameraProviderManager::~CameraProviderManager() {
+}
+
+status_t CameraProviderManager::initialize(wp<CameraProviderManager::StatusListener> listener,
+        ServiceInteractionProxy* proxy) {
+    std::lock_guard<std::mutex> lock(mInterfaceMutex);
+    if (proxy == nullptr) {
+        ALOGE("%s: No valid service interaction proxy provided", __FUNCTION__);
+        return BAD_VALUE;
+    }
+    mListener = listener;
+    mServiceProxy = proxy;
+
+    // Registering will trigger notifications for all already-known providers
+    bool success = mServiceProxy->registerForNotifications(
+        /* instance name, empty means no filter */ "",
+        this);
+    if (!success) {
+        ALOGE("%s: Unable to register with hardware service manager for notifications "
+                "about camera providers", __FUNCTION__);
+        return INVALID_OPERATION;
+    }
+
+    // See if there's a passthrough HAL, but let's not complain if there's not
+    addProviderLocked(kLegacyProviderName, /*expected*/ false);
+
+    return OK;
+}
+
+int CameraProviderManager::getCameraCount() const {
+    std::lock_guard<std::mutex> lock(mInterfaceMutex);
+    int count = 0;
+    for (auto& provider : mProviders) {
+        count += provider->mDevices.size();
+    }
+    return count;
+}
+
+int CameraProviderManager::getStandardCameraCount() const {
+    std::lock_guard<std::mutex> lock(mInterfaceMutex);
+    int count = 0;
+    for (auto& provider : mProviders) {
+        if (kStandardProviderTypes.find(provider->getType()) != std::string::npos) {
+            count += provider->mDevices.size();
+        }
+    }
+    return count;
+}
+
+std::vector<std::string> CameraProviderManager::getCameraDeviceIds() const {
+    std::lock_guard<std::mutex> lock(mInterfaceMutex);
+    std::vector<std::string> deviceIds;
+    for (auto& provider : mProviders) {
+        for (auto& deviceInfo : provider->mDevices) {
+            deviceIds.push_back(deviceInfo->mId);
+        }
+    }
+    return deviceIds;
+}
+
+bool CameraProviderManager::isValidDevice(const std::string &id, uint16_t majorVersion) const {
+    std::lock_guard<std::mutex> lock(mInterfaceMutex);
+    return isValidDeviceLocked(id, majorVersion);
+}
+
+bool CameraProviderManager::isValidDeviceLocked(const std::string &id, uint16_t majorVersion) const {
+    for (auto& provider : mProviders) {
+        for (auto& deviceInfo : provider->mDevices) {
+            if (deviceInfo->mId == id && deviceInfo->mVersion.get_major() == majorVersion) {
+                return true;
+            }
+        }
+    }
+    return false;
+}
+
+bool CameraProviderManager::hasFlashUnit(const std::string &id) const {
+    std::lock_guard<std::mutex> lock(mInterfaceMutex);
+
+    auto deviceInfo = findDeviceInfoLocked(id);
+    if (deviceInfo == nullptr) return false;
+
+    return deviceInfo->hasFlashUnit();
+}
+
+status_t CameraProviderManager::getResourceCost(const std::string &id,
+        CameraResourceCost* cost) const {
+    std::lock_guard<std::mutex> lock(mInterfaceMutex);
+
+    auto deviceInfo = findDeviceInfoLocked(id);
+    if (deviceInfo == nullptr) return NAME_NOT_FOUND;
+
+    *cost = deviceInfo->mResourceCost;
+    return OK;
+}
+
+status_t CameraProviderManager::getCameraInfo(const std::string &id,
+        hardware::CameraInfo* info) const {
+    std::lock_guard<std::mutex> lock(mInterfaceMutex);
+
+    auto deviceInfo = findDeviceInfoLocked(id);
+    if (deviceInfo == nullptr) return NAME_NOT_FOUND;
+
+    return deviceInfo->getCameraInfo(info);
+}
+
+status_t CameraProviderManager::getCameraCharacteristics(const std::string &id,
+        CameraMetadata* characteristics) const {
+    std::lock_guard<std::mutex> lock(mInterfaceMutex);
+
+    auto deviceInfo = findDeviceInfoLocked(id, /*minVersion*/ {3,0}, /*maxVersion*/ {4,0});
+    if (deviceInfo == nullptr) return NAME_NOT_FOUND;
+
+    return deviceInfo->getCameraCharacteristics(characteristics);
+}
+
+status_t CameraProviderManager::getHighestSupportedVersion(const std::string &id,
+        hardware::hidl_version *v) {
+    std::lock_guard<std::mutex> lock(mInterfaceMutex);
+
+    hardware::hidl_version maxVersion{0,0};
+    bool found = false;
+    for (auto& provider : mProviders) {
+        for (auto& deviceInfo : provider->mDevices) {
+            if (deviceInfo->mId == id) {
+                if (deviceInfo->mVersion > maxVersion) {
+                    maxVersion = deviceInfo->mVersion;
+                    found = true;
+                }
+            }
+        }
+    }
+    if (!found) {
+        return NAME_NOT_FOUND;
+    }
+    *v = maxVersion;
+    return OK;
+}
+
+status_t CameraProviderManager::setTorchMode(const std::string &id, bool enabled) {
+    std::lock_guard<std::mutex> lock(mInterfaceMutex);
+
+    auto deviceInfo = findDeviceInfoLocked(id);
+    if (deviceInfo == nullptr) return NAME_NOT_FOUND;
+
+    return deviceInfo->setTorchMode(enabled);
+}
+
+status_t CameraProviderManager::setUpVendorTags() {
+    // TODO (b/34275821): support aggregating vendor tags for more than one provider
+    for (auto& provider : mProviders) {
+        hardware::hidl_vec<VendorTagSection> vts;
+        Status status;
+        hardware::Return<void> ret;
+        ret = provider->mInterface->getVendorTags(
+            [&](auto s, const auto& vendorTagSecs) {
+                status = s;
+                if (s == Status::OK) {
+                    vts = vendorTagSecs;
+                }
+        });
+        if (!ret.isOk()) {
+            ALOGE("%s: Transaction error getting vendor tags from provider '%s': %s",
+                    __FUNCTION__, provider->mProviderName.c_str(), ret.description().c_str());
+            return DEAD_OBJECT;
+        }
+        if (status != Status::OK) {
+            return mapToStatusT(status);
+        }
+
+        VendorTagDescriptor::clearGlobalVendorTagDescriptor();
+
+        // Read all vendor tag definitions into a descriptor
+        sp<VendorTagDescriptor> desc;
+        status_t res;
+        if ((res = HidlVendorTagDescriptor::createDescriptorFromHidl(vts, /*out*/desc))
+                != OK) {
+            ALOGE("%s: Could not generate descriptor from vendor tag operations,"
+                  "received error %s (%d). Camera clients will not be able to use"
+                  "vendor tags", __FUNCTION__, strerror(res), res);
+            return res;
+        }
+
+        // Set the global descriptor to use with camera metadata
+        VendorTagDescriptor::setAsGlobalVendorTagDescriptor(desc);
+    }
+    return OK;
+}
+
+status_t CameraProviderManager::openSession(const std::string &id,
+        const sp<hardware::camera::device::V3_2::ICameraDeviceCallback>& callback,
+        /*out*/
+        sp<hardware::camera::device::V3_2::ICameraDeviceSession> *session) {
+
+    std::lock_guard<std::mutex> lock(mInterfaceMutex);
+
+    auto deviceInfo = findDeviceInfoLocked(id,
+            /*minVersion*/ {3,0}, /*maxVersion*/ {4,0});
+    if (deviceInfo == nullptr) return NAME_NOT_FOUND;
+
+    auto *deviceInfo3 = static_cast<ProviderInfo::DeviceInfo3*>(deviceInfo);
+
+    Status status;
+    hardware::Return<void> ret;
+    ret = deviceInfo3->mInterface->open(callback, [&status, &session]
+            (Status s, const sp<device::V3_2::ICameraDeviceSession>& cameraSession) {
+                status = s;
+                if (status == Status::OK) {
+                    *session = cameraSession;
+                }
+            });
+    if (!ret.isOk()) {
+        ALOGE("%s: Transaction error opening a session for camera device %s: %s",
+                __FUNCTION__, id.c_str(), ret.description().c_str());
+        return DEAD_OBJECT;
+    }
+    return mapToStatusT(status);
+}
+
+status_t CameraProviderManager::openSession(const std::string &id,
+        const sp<hardware::camera::device::V1_0::ICameraDeviceCallback>& callback,
+        /*out*/
+        sp<hardware::camera::device::V1_0::ICameraDevice> *session) {
+
+    std::lock_guard<std::mutex> lock(mInterfaceMutex);
+
+    auto deviceInfo = findDeviceInfoLocked(id,
+            /*minVersion*/ {1,0}, /*maxVersion*/ {2,0});
+    if (deviceInfo == nullptr) return NAME_NOT_FOUND;
+
+    auto *deviceInfo1 = static_cast<ProviderInfo::DeviceInfo1*>(deviceInfo);
+
+    hardware::Return<Status> status = deviceInfo1->mInterface->open(callback);
+    if (!status.isOk()) {
+        ALOGE("%s: Transaction error opening a session for camera device %s: %s",
+                __FUNCTION__, id.c_str(), status.description().c_str());
+        return DEAD_OBJECT;
+    }
+    if (status == Status::OK) {
+        *session = deviceInfo1->mInterface;
+    }
+    return mapToStatusT(status);
+}
+
+
+hardware::Return<void> CameraProviderManager::onRegistration(
+        const hardware::hidl_string& /*fqName*/,
+        const hardware::hidl_string& name,
+        bool /*preexisting*/) {
+    std::lock_guard<std::mutex> lock(mInterfaceMutex);
+
+    addProviderLocked(name);
+    return hardware::Return<void>();
+}
+
+status_t CameraProviderManager::dump(int fd, const Vector<String16>& args) {
+    std::lock_guard<std::mutex> lock(mInterfaceMutex);
+
+    for (auto& provider : mProviders) {
+        provider->dump(fd, args);
+    }
+    return OK;
+}
+
+CameraProviderManager::ProviderInfo::DeviceInfo* CameraProviderManager::findDeviceInfoLocked(
+        const std::string& id,
+        hardware::hidl_version minVersion, hardware::hidl_version maxVersion) const {
+    for (auto& provider : mProviders) {
+        for (auto& deviceInfo : provider->mDevices) {
+            if (deviceInfo->mId == id &&
+                    minVersion <= deviceInfo->mVersion && maxVersion >= deviceInfo->mVersion) {
+                return deviceInfo.get();
+            }
+        }
+    }
+    return nullptr;
+}
+
+
+status_t CameraProviderManager::addProviderLocked(const std::string& newProvider, bool expected) {
+    for (const auto& providerInfo : mProviders) {
+        if (providerInfo->mProviderName == newProvider) {
+            ALOGW("%s: Camera provider HAL with name '%s' already registered", __FUNCTION__,
+                    newProvider.c_str());
+            return ALREADY_EXISTS;
+        }
+    }
+
+    sp<provider::V2_4::ICameraProvider> interface;
+    interface = mServiceProxy->getService(newProvider);
+
+    if (interface == nullptr) {
+        if (expected) {
+            ALOGE("%s: Camera provider HAL '%s' is not actually available", __FUNCTION__,
+                    newProvider.c_str());
+            return BAD_VALUE;
+        } else {
+            return OK;
+        }
+    }
+
+    sp<ProviderInfo> providerInfo =
+            new ProviderInfo(newProvider, interface, this);
+    status_t res = providerInfo->initialize();
+    if (res != OK) {
+        return res;
+    }
+
+    mProviders.push_back(providerInfo);
+
+    return OK;
+}
+
+status_t CameraProviderManager::removeProvider(const std::string& provider) {
+    std::unique_lock<std::mutex> lock(mInterfaceMutex);
+    std::vector<String8> removedDeviceIds;
+    status_t res = NAME_NOT_FOUND;
+    for (auto it = mProviders.begin(); it != mProviders.end(); it++) {
+        if ((*it)->mProviderName == provider) {
+            removedDeviceIds.reserve((*it)->mDevices.size());
+            for (auto& deviceInfo : (*it)->mDevices) {
+                removedDeviceIds.push_back(String8(deviceInfo->mId.c_str()));
+            }
+            mProviders.erase(it);
+            res = OK;
+            break;
+        }
+    }
+    if (res != OK) {
+        ALOGW("%s: Camera provider HAL with name '%s' is not registered", __FUNCTION__,
+                provider.c_str());
+    } else {
+        // Inform camera service of loss of presence for all the devices from this provider,
+        // without lock held for reentrancy
+        sp<StatusListener> listener = getStatusListener();
+        if (listener != nullptr) {
+            lock.unlock();
+            for (auto& id : removedDeviceIds) {
+                listener->onDeviceStatusChanged(id, CameraDeviceStatus::NOT_PRESENT);
+            }
+        }
+    }
+    return res;
+}
+
+sp<CameraProviderManager::StatusListener> CameraProviderManager::getStatusListener() const {
+    return mListener.promote();
+}
+
+/**** Methods for ProviderInfo ****/
+
+
+CameraProviderManager::ProviderInfo::ProviderInfo(
+        const std::string &providerName,
+        sp<provider::V2_4::ICameraProvider>& interface,
+        CameraProviderManager *manager) :
+        mProviderName(providerName),
+        mInterface(interface),
+        mManager(manager) {
+    (void) mManager;
+}
+
+status_t CameraProviderManager::ProviderInfo::initialize() {
+    status_t res = parseProviderName(mProviderName, &mType, &mId);
+    if (res != OK) {
+        ALOGE("%s: Invalid provider name, ignoring", __FUNCTION__);
+        return BAD_VALUE;
+    }
+    ALOGI("Connecting to new camera provider: %s, isRemote? %d",
+            mProviderName.c_str(), mInterface->isRemote());
+    hardware::Return<Status> status = mInterface->setCallback(this);
+    if (!status.isOk()) {
+        ALOGE("%s: Transaction error setting up callbacks with camera provider '%s': %s",
+                __FUNCTION__, mProviderName.c_str(), status.description().c_str());
+        return DEAD_OBJECT;
+    }
+    if (status != Status::OK) {
+        ALOGE("%s: Unable to register callbacks with camera provider '%s'",
+                __FUNCTION__, mProviderName.c_str());
+        return mapToStatusT(status);
+    }
+
+    hardware::Return<bool> linked = mInterface->linkToDeath(this, /*cookie*/ mId);
+    if (!linked.isOk()) {
+        ALOGE("%s: Transaction error in linking to camera provider '%s' death: %s",
+                __FUNCTION__, mProviderName.c_str(), linked.description().c_str());
+        return DEAD_OBJECT;
+    } else if (!linked) {
+        ALOGW("%s: Unable to link to provider '%s' death notifications",
+                __FUNCTION__, mProviderName.c_str());
+    }
+
+    // Get initial list of camera devices, if any
+    std::vector<std::string> devices;
+    hardware::Return<void> ret = mInterface->getCameraIdList([&status, &devices](
+            Status idStatus,
+            const hardware::hidl_vec<hardware::hidl_string>& cameraDeviceNames) {
+        status = idStatus;
+        if (status == Status::OK) {
+            for (size_t i = 0; i < cameraDeviceNames.size(); i++) {
+                devices.push_back(cameraDeviceNames[i]);
+            }
+        } });
+    if (!ret.isOk()) {
+        ALOGE("%s: Transaction error in getting camera ID list from provider '%s': %s",
+                __FUNCTION__, mProviderName.c_str(), linked.description().c_str());
+        return DEAD_OBJECT;
+    }
+    if (status != Status::OK) {
+        ALOGE("%s: Unable to query for camera devices from provider '%s'",
+                __FUNCTION__, mProviderName.c_str());
+        return mapToStatusT(status);
+    }
+
+    sp<StatusListener> listener = mManager->getStatusListener();
+    for (auto& device : devices) {
+        std::string id;
+        status_t res = addDevice(device,
+                hardware::camera::common::V1_0::CameraDeviceStatus::PRESENT, &id);
+        if (res != OK) {
+            ALOGE("%s: Unable to enumerate camera device '%s': %s (%d)",
+                    __FUNCTION__, device.c_str(), strerror(-res), res);
+            continue;
+        }
+        if (listener != nullptr) {
+            listener->onDeviceStatusChanged(String8(id.c_str()), CameraDeviceStatus::PRESENT);
+        }
+    }
+
+    ALOGI("Camera provider %s ready with %zu camera devices",
+            mProviderName.c_str(), mDevices.size());
+
+    return OK;
+}
+
+const std::string& CameraProviderManager::ProviderInfo::getType() const {
+    return mType;
+}
+
+status_t CameraProviderManager::ProviderInfo::addDevice(const std::string& name,
+        CameraDeviceStatus initialStatus, /*out*/ std::string* parsedId) {
+
+    ALOGI("Enumerating new camera device: %s", name.c_str());
+
+    uint16_t major, minor;
+    std::string type, id;
+
+    status_t res = parseDeviceName(name, &major, &minor, &type, &id);
+    if (res != OK) {
+        return res;
+    }
+    if (type != mType) {
+        ALOGE("%s: Device type %s does not match provider type %s", __FUNCTION__,
+                type.c_str(), mType.c_str());
+        return BAD_VALUE;
+    }
+    if (mManager->isValidDeviceLocked(id, major)) {
+        ALOGE("%s: Device %s: ID %s is already in use for device major version %d", __FUNCTION__,
+                name.c_str(), id.c_str(), major);
+        return BAD_VALUE;
+    }
+
+    std::unique_ptr<DeviceInfo> deviceInfo;
+    switch (major) {
+        case 1:
+            deviceInfo = initializeDeviceInfo<DeviceInfo1>(name, id, minor);
+            break;
+        case 3:
+            deviceInfo = initializeDeviceInfo<DeviceInfo3>(name, id, minor);
+            break;
+        default:
+            ALOGE("%s: Device %s: Unknown HIDL device HAL major version %d:", __FUNCTION__,
+                    name.c_str(), major);
+            return BAD_VALUE;
+    }
+    if (deviceInfo == nullptr) return BAD_VALUE;
+    deviceInfo->mStatus = initialStatus;
+
+    mDevices.push_back(std::move(deviceInfo));
+
+    if (parsedId != nullptr) {
+        *parsedId = id;
+    }
+    return OK;
+}
+
+status_t CameraProviderManager::ProviderInfo::dump(int fd, const Vector<String16>&) const {
+    dprintf(fd, "== Camera Provider HAL %s (v2.4, %s) static info: %zu devices: ==\n",
+            mProviderName.c_str(), mInterface->isRemote() ? "remote" : "passthrough",
+            mDevices.size());
+
+    for (auto& device : mDevices) {
+        dprintf(fd, "== Camera HAL device %s (v%d.%d) static information: ==\n", device->mName.c_str(),
+                device->mVersion.get_major(), device->mVersion.get_minor());
+        dprintf(fd, "  Resource cost: %d\n", device->mResourceCost.resourceCost);
+        if (device->mResourceCost.conflictingDevices.size() == 0) {
+            dprintf(fd, "  Conflicting devices: None\n");
+        } else {
+            dprintf(fd, "  Conflicting devices:\n");
+            for (size_t i = 0; i < device->mResourceCost.conflictingDevices.size(); i++) {
+                dprintf(fd, "    %s\n",
+                        device->mResourceCost.conflictingDevices[i].c_str());
+            }
+        }
+        dprintf(fd, "  API1 info:\n");
+        dprintf(fd, "    Has a flash unit: %s\n",
+                device->hasFlashUnit() ? "true" : "false");
+        hardware::CameraInfo info;
+        status_t res = device->getCameraInfo(&info);
+        if (res != OK) {
+            dprintf(fd, "   <Error reading camera info: %s (%d)>\n",
+                    strerror(-res), res);
+        } else {
+            dprintf(fd, "    Facing: %s\n",
+                    info.facing == hardware::CAMERA_FACING_BACK ? "Back" : "Front");
+            dprintf(fd, "    Orientation: %d\n", info.orientation);
+        }
+        CameraMetadata info2;
+        res = device->getCameraCharacteristics(&info2);
+        if (res == INVALID_OPERATION) {
+            dprintf(fd, "  API2 not directly supported\n");
+        } else if (res != OK) {
+            dprintf(fd, "  <Error reading camera characteristics: %s (%d)>\n",
+                    strerror(-res), res);
+        } else {
+            dprintf(fd, "  API2 camera characteristics:\n");
+            info2.dump(fd, /*verbosity*/ 2, /*indentation*/ 4);
+        }
+    }
+    return OK;
+}
+
+hardware::Return<void> CameraProviderManager::ProviderInfo::cameraDeviceStatusChange(
+        const hardware::hidl_string& cameraDeviceName,
+        CameraDeviceStatus newStatus) {
+    sp<StatusListener> listener;
+    std::string id;
+    {
+        std::lock_guard<std::mutex> lock(mLock);
+        bool known = false;
+        for (auto& deviceInfo : mDevices) {
+            if (deviceInfo->mName == cameraDeviceName) {
+                ALOGI("Camera device %s status is now %s, was %s", cameraDeviceName.c_str(),
+                        deviceStatusToString(newStatus), deviceStatusToString(deviceInfo->mStatus));
+                deviceInfo->mStatus = newStatus;
+                // TODO: Handle device removal (NOT_PRESENT)
+                id = deviceInfo->mId;
+                known = true;
+                break;
+            }
+        }
+        // Previously unseen device; status must not be NOT_PRESENT
+        if (!known) {
+            if (newStatus == CameraDeviceStatus::NOT_PRESENT) {
+                ALOGW("Camera provider %s says an unknown camera device %s is not present. Curious.",
+                    mProviderName.c_str(), cameraDeviceName.c_str());
+                return hardware::Void();
+            }
+            addDevice(cameraDeviceName, newStatus, &id);
+        }
+        listener = mManager->getStatusListener();
+    }
+    // Call without lock held to allow reentrancy into provider manager
+    if (listener != nullptr) {
+        listener->onDeviceStatusChanged(String8(id.c_str()), newStatus);
+    }
+    return hardware::Void();
+}
+
+hardware::Return<void> CameraProviderManager::ProviderInfo::torchModeStatusChange(
+        const hardware::hidl_string& cameraDeviceName,
+        TorchModeStatus newStatus) {
+    sp<StatusListener> listener;
+    std::string id;
+    {
+        std::lock_guard<std::mutex> lock(mManager->mStatusListenerMutex);
+        bool known = false;
+        for (auto& deviceInfo : mDevices) {
+            if (deviceInfo->mName == cameraDeviceName) {
+                ALOGI("Camera device %s torch status is now %s", cameraDeviceName.c_str(),
+                        torchStatusToString(newStatus));
+                id = deviceInfo->mId;
+                known = true;
+                break;
+            }
+        }
+        if (!known) {
+            ALOGW("Camera provider %s says an unknown camera %s now has torch status %d. Curious.",
+                    mProviderName.c_str(), cameraDeviceName.c_str(), newStatus);
+            return hardware::Void();
+        }
+        listener = mManager->getStatusListener();
+    }
+    // Call without lock held to allow reentrancy into provider manager
+    if (listener != nullptr) {
+        listener->onTorchStatusChanged(String8(id.c_str()), newStatus);
+    }
+    return hardware::Void();
+}
+
+void CameraProviderManager::ProviderInfo::serviceDied(uint64_t cookie,
+        const wp<hidl::base::V1_0::IBase>& who) {
+    (void) who;
+    ALOGI("Camera provider '%s' has died; removing it", mProviderName.c_str());
+    if (cookie != mId) {
+        ALOGW("%s: Unexpected serviceDied cookie %" PRIu64 ", expected %" PRIu32,
+                __FUNCTION__, cookie, mId);
+    }
+    mManager->removeProvider(mProviderName);
+}
+
+template<class DeviceInfoT>
+std::unique_ptr<CameraProviderManager::ProviderInfo::DeviceInfo>
+    CameraProviderManager::ProviderInfo::initializeDeviceInfo(
+        const std::string &name,
+        const std::string &id, uint16_t minorVersion) const {
+    Status status;
+
+    auto cameraInterface =
+            getDeviceInterface<typename DeviceInfoT::InterfaceT>(name);
+    if (cameraInterface == nullptr) return nullptr;
+
+    CameraResourceCost resourceCost;
+    cameraInterface->getResourceCost([&status, &resourceCost](
+        Status s, CameraResourceCost cost) {
+                status = s;
+                resourceCost = cost;
+            });
+    if (status != Status::OK) {
+        ALOGE("%s: Unable to obtain resource costs for camera device %s: %s", __FUNCTION__,
+                name.c_str(), statusToString(status));
+        return nullptr;
+    }
+    return std::unique_ptr<DeviceInfo>(
+        new DeviceInfoT(name, id, minorVersion, resourceCost, cameraInterface));
+}
+
+template<class InterfaceT>
+sp<InterfaceT>
+CameraProviderManager::ProviderInfo::getDeviceInterface(const std::string &name) const {
+    ALOGE("%s: Device %s: Unknown HIDL device HAL major version %d:", __FUNCTION__,
+            name.c_str(), InterfaceT::version.get_major());
+    return nullptr;
+}
+
+template<>
+sp<device::V1_0::ICameraDevice>
+CameraProviderManager::ProviderInfo::getDeviceInterface
+        <device::V1_0::ICameraDevice>(const std::string &name) const {
+    Status status;
+    sp<device::V1_0::ICameraDevice> cameraInterface;
+    hardware::Return<void> ret;
+    ret = mInterface->getCameraDeviceInterface_V1_x(name, [&status, &cameraInterface](
+        Status s, sp<device::V1_0::ICameraDevice> interface) {
+                status = s;
+                cameraInterface = interface;
+            });
+    if (!ret.isOk()) {
+        ALOGE("%s: Transaction error trying to obtain interface for camera device %s: %s",
+                __FUNCTION__, name.c_str(), ret.description().c_str());
+        return nullptr;
+    }
+    if (status != Status::OK) {
+        ALOGE("%s: Unable to obtain interface for camera device %s: %s", __FUNCTION__,
+                name.c_str(), statusToString(status));
+        return nullptr;
+    }
+    return cameraInterface;
+}
+
+template<>
+sp<device::V3_2::ICameraDevice>
+CameraProviderManager::ProviderInfo::getDeviceInterface
+        <device::V3_2::ICameraDevice>(const std::string &name) const {
+    Status status;
+    sp<device::V3_2::ICameraDevice> cameraInterface;
+    hardware::Return<void> ret;
+    ret = mInterface->getCameraDeviceInterface_V3_x(name, [&status, &cameraInterface](
+        Status s, sp<device::V3_2::ICameraDevice> interface) {
+                status = s;
+                cameraInterface = interface;
+            });
+    if (!ret.isOk()) {
+        ALOGE("%s: Transaction error trying to obtain interface for camera device %s: %s",
+                __FUNCTION__, name.c_str(), ret.description().c_str());
+        return nullptr;
+    }
+    if (status != Status::OK) {
+        ALOGE("%s: Unable to obtain interface for camera device %s: %s", __FUNCTION__,
+                name.c_str(), statusToString(status));
+        return nullptr;
+    }
+    return cameraInterface;
+}
+
+CameraProviderManager::ProviderInfo::DeviceInfo::~DeviceInfo() {}
+
+template<class InterfaceT>
+status_t CameraProviderManager::ProviderInfo::DeviceInfo::setTorchMode(InterfaceT& interface,
+        bool enabled) {
+    Status s = interface->setTorchMode(enabled ? TorchMode::ON : TorchMode::OFF);
+    return mapToStatusT(s);
+}
+
+CameraProviderManager::ProviderInfo::DeviceInfo1::DeviceInfo1(const std::string& name,
+        const std::string &id,
+        uint16_t minorVersion,
+        const CameraResourceCost& resourceCost,
+        sp<InterfaceT> interface) :
+        DeviceInfo(name, id, hardware::hidl_version{1, minorVersion}, resourceCost),
+        mInterface(interface) {
+    // Get default parameters and initialize flash unit availability
+    // Requires powering on the camera device
+    hardware::Return<Status> status = mInterface->open(nullptr);
+    if (!status.isOk()) {
+        ALOGE("%s: Transaction error opening camera device %s to check for a flash unit: %s",
+                __FUNCTION__, mId.c_str(), status.description().c_str());
+        return;
+    }
+    if (status != Status::OK) {
+        ALOGE("%s: Unable to open camera device %s to check for a flash unit: %s", __FUNCTION__,
+                mId.c_str(), CameraProviderManager::statusToString(status));
+        return;
+    }
+    hardware::Return<void> ret;
+    ret = mInterface->getParameters([this](const hardware::hidl_string& parms) {
+                mDefaultParameters.unflatten(String8(parms.c_str()));
+            });
+    if (!ret.isOk()) {
+        ALOGE("%s: Transaction error reading camera device %s params to check for a flash unit: %s",
+                __FUNCTION__, mId.c_str(), status.description().c_str());
+        return;
+    }
+    const char *flashMode =
+            mDefaultParameters.get(CameraParameters::KEY_SUPPORTED_FLASH_MODES);
+    if (flashMode && strstr(flashMode, CameraParameters::FLASH_MODE_TORCH)) {
+        mHasFlashUnit = true;
+    }
+
+    ret = mInterface->close();
+    if (!ret.isOk()) {
+        ALOGE("%s: Transaction error closing camera device %s after check for a flash unit: %s",
+                __FUNCTION__, mId.c_str(), status.description().c_str());
+    }
+}
+
+CameraProviderManager::ProviderInfo::DeviceInfo1::~DeviceInfo1() {}
+
+status_t CameraProviderManager::ProviderInfo::DeviceInfo1::setTorchMode(bool enabled) {
+    return DeviceInfo::setTorchMode(mInterface, enabled);
+}
+
+status_t CameraProviderManager::ProviderInfo::DeviceInfo1::getCameraInfo(
+        hardware::CameraInfo *info) const {
+    if (info == nullptr) return BAD_VALUE;
+
+    Status status;
+    device::V1_0::CameraInfo cInfo;
+    hardware::Return<void> ret;
+    ret = mInterface->getCameraInfo([&status, &cInfo](Status s, device::V1_0::CameraInfo camInfo) {
+                status = s;
+                cInfo = camInfo;
+            });
+    if (!ret.isOk()) {
+        ALOGE("%s: Transaction error reading camera info from device %s: %s",
+                __FUNCTION__, mId.c_str(), ret.description().c_str());
+        return DEAD_OBJECT;
+    }
+    if (status != Status::OK) {
+        return mapToStatusT(status);
+    }
+
+    switch(cInfo.facing) {
+        case device::V1_0::CameraFacing::BACK:
+            info->facing = hardware::CAMERA_FACING_BACK;
+            break;
+        case device::V1_0::CameraFacing::EXTERNAL:
+            // Map external to front for legacy API
+        case device::V1_0::CameraFacing::FRONT:
+            info->facing = hardware::CAMERA_FACING_FRONT;
+            break;
+        default:
+            ALOGW("%s: Device %s: Unknown camera facing: %d",
+                    __FUNCTION__, mId.c_str(), cInfo.facing);
+            info->facing = hardware::CAMERA_FACING_BACK;
+    }
+    info->orientation = cInfo.orientation;
+
+    return OK;
+}
+
+CameraProviderManager::ProviderInfo::DeviceInfo3::DeviceInfo3(const std::string& name,
+        const std::string &id,
+        uint16_t minorVersion,
+        const CameraResourceCost& resourceCost,
+        sp<InterfaceT> interface) :
+        DeviceInfo(name, id, hardware::hidl_version{3, minorVersion}, resourceCost),
+        mInterface(interface) {
+    // Get camera characteristics and initialize flash unit availability
+    Status status;
+    hardware::Return<void> ret;
+    ret = mInterface->getCameraCharacteristics([&status, this](Status s,
+                    device::V3_2::CameraMetadata metadata) {
+                status = s;
+                if (s == Status::OK) {
+                    camera_metadata_t *buffer =
+                            reinterpret_cast<camera_metadata_t*>(metadata.data());
+                    mCameraCharacteristics = buffer;
+                }
+            });
+    if (!ret.isOk()) {
+        ALOGE("%s: Transaction error getting camera characteristics for device %s"
+                " to check for a flash unit: %s", __FUNCTION__, mId.c_str(),
+                ret.description().c_str());
+        return;
+    }
+    if (status != Status::OK) {
+        ALOGE("%s: Unable to get camera characteristics for device %s: %s (%d)",
+                __FUNCTION__, mId.c_str(), CameraProviderManager::statusToString(status), status);
+        return;
+    }
+    camera_metadata_entry flashAvailable =
+            mCameraCharacteristics.find(ANDROID_FLASH_INFO_AVAILABLE);
+    if (flashAvailable.count == 1 &&
+            flashAvailable.data.u8[0] == ANDROID_FLASH_INFO_AVAILABLE_TRUE) {
+        mHasFlashUnit = true;
+    } else {
+        mHasFlashUnit = false;
+    }
+}
+
+CameraProviderManager::ProviderInfo::DeviceInfo3::~DeviceInfo3() {}
+
+status_t CameraProviderManager::ProviderInfo::DeviceInfo3::setTorchMode(bool enabled) {
+    return DeviceInfo::setTorchMode(mInterface, enabled);
+}
+
+status_t CameraProviderManager::ProviderInfo::DeviceInfo3::getCameraInfo(
+        hardware::CameraInfo *info) const {
+    if (info == nullptr) return BAD_VALUE;
+
+    camera_metadata_ro_entry facing =
+            mCameraCharacteristics.find(ANDROID_LENS_FACING);
+    if (facing.count == 1) {
+        switch (facing.data.u8[0]) {
+            case ANDROID_LENS_FACING_BACK:
+                info->facing = hardware::CAMERA_FACING_BACK;
+                break;
+            case ANDROID_LENS_FACING_EXTERNAL:
+                // Map external to front for legacy API
+            case ANDROID_LENS_FACING_FRONT:
+                info->facing = hardware::CAMERA_FACING_FRONT;
+                break;
+        }
+    } else {
+        ALOGE("%s: Unable to find android.lens.facing static metadata", __FUNCTION__);
+        return NAME_NOT_FOUND;
+    }
+
+    camera_metadata_ro_entry orientation =
+            mCameraCharacteristics.find(ANDROID_SENSOR_ORIENTATION);
+    if (orientation.count == 1) {
+        info->orientation = orientation.data.i32[0];
+    } else {
+        ALOGE("%s: Unable to find android.sensor.orientation static metadata", __FUNCTION__);
+        return NAME_NOT_FOUND;
+    }
+
+    return OK;
+}
+
+status_t CameraProviderManager::ProviderInfo::DeviceInfo3::getCameraCharacteristics(
+        CameraMetadata *characteristics) const {
+    if (characteristics == nullptr) return BAD_VALUE;
+
+    *characteristics = mCameraCharacteristics;
+    return OK;
+}
+
+status_t CameraProviderManager::ProviderInfo::parseProviderName(const std::string& name,
+        std::string *type, uint32_t *id) {
+    // Format must be "<type>/<id>"
+#define ERROR_MSG_PREFIX "%s: Invalid provider name '%s'. "       \
+    "Should match '<type>/<id>' - "
+
+    if (!type || !id) return INVALID_OPERATION;
+
+    std::string::size_type slashIdx = name.find('/');
+    if (slashIdx == std::string::npos || slashIdx == name.size() - 1) {
+        ALOGE(ERROR_MSG_PREFIX
+                "does not have / separator between type and id",
+                __FUNCTION__, name.c_str());
+        return BAD_VALUE;
+    }
+
+    std::string typeVal = name.substr(0, slashIdx);
+
+    char *endPtr;
+    errno = 0;
+    long idVal = strtol(name.c_str() + slashIdx + 1, &endPtr, 10);
+    if (errno != 0) {
+        ALOGE(ERROR_MSG_PREFIX
+                "cannot parse provider id as an integer: %s (%d)",
+                __FUNCTION__, name.c_str(), strerror(errno), errno);
+        return BAD_VALUE;
+    }
+    if (endPtr != name.c_str() + name.size()) {
+        ALOGE(ERROR_MSG_PREFIX
+                "provider id has unexpected length",
+                __FUNCTION__, name.c_str());
+        return BAD_VALUE;
+    }
+    if (idVal < 0) {
+        ALOGE(ERROR_MSG_PREFIX
+                "id is negative: %ld",
+                __FUNCTION__, name.c_str(), idVal);
+        return BAD_VALUE;
+    }
+
+#undef ERROR_MSG_PREFIX
+
+    *type = typeVal;
+    *id = static_cast<uint32_t>(idVal);
+
+    return OK;
+}
+
+status_t CameraProviderManager::ProviderInfo::parseDeviceName(const std::string& name,
+        uint16_t *major, uint16_t *minor, std::string *type, std::string *id) {
+
+    // Format must be "device@<major>.<minor>/<type>/<id>"
+
+#define ERROR_MSG_PREFIX "%s: Invalid device name '%s'. " \
+    "Should match 'device@<major>.<minor>/<type>/<id>' - "
+
+    if (!major || !minor || !type || !id) return INVALID_OPERATION;
+
+    // Verify starting prefix
+    const char expectedPrefix[] = "device@";
+
+    if (name.find(expectedPrefix) != 0) {
+        ALOGE(ERROR_MSG_PREFIX
+                "does not start with '%s'",
+                __FUNCTION__, name.c_str(), expectedPrefix);
+        return BAD_VALUE;
+    }
+
+    // Extract major/minor versions
+    constexpr std::string::size_type atIdx = sizeof(expectedPrefix) - 2;
+    std::string::size_type dotIdx = name.find('.', atIdx);
+    if (dotIdx == std::string::npos) {
+        ALOGE(ERROR_MSG_PREFIX
+                "does not have @<major>. version section",
+                __FUNCTION__, name.c_str());
+        return BAD_VALUE;
+    }
+    std::string::size_type typeSlashIdx = name.find('/', dotIdx);
+    if (typeSlashIdx == std::string::npos) {
+        ALOGE(ERROR_MSG_PREFIX
+                "does not have .<minor>/ version section",
+                __FUNCTION__, name.c_str());
+        return BAD_VALUE;
+    }
+
+    char *endPtr;
+    errno = 0;
+    long majorVal = strtol(name.c_str() + atIdx + 1, &endPtr, 10);
+    if (errno != 0) {
+        ALOGE(ERROR_MSG_PREFIX
+                "cannot parse major version: %s (%d)",
+                __FUNCTION__, name.c_str(), strerror(errno), errno);
+        return BAD_VALUE;
+    }
+    if (endPtr != name.c_str() + dotIdx) {
+        ALOGE(ERROR_MSG_PREFIX
+                "major version has unexpected length",
+                __FUNCTION__, name.c_str());
+        return BAD_VALUE;
+    }
+    long minorVal = strtol(name.c_str() + dotIdx + 1, &endPtr, 10);
+    if (errno != 0) {
+        ALOGE(ERROR_MSG_PREFIX
+                "cannot parse minor version: %s (%d)",
+                __FUNCTION__, name.c_str(), strerror(errno), errno);
+        return BAD_VALUE;
+    }
+    if (endPtr != name.c_str() + typeSlashIdx) {
+        ALOGE(ERROR_MSG_PREFIX
+                "minor version has unexpected length",
+                __FUNCTION__, name.c_str());
+        return BAD_VALUE;
+    }
+    if (majorVal < 0 || majorVal > UINT16_MAX || minorVal < 0 || minorVal > UINT16_MAX) {
+        ALOGE(ERROR_MSG_PREFIX
+                "major/minor version is out of range of uint16_t: %ld.%ld",
+                __FUNCTION__, name.c_str(), majorVal, minorVal);
+        return BAD_VALUE;
+    }
+
+    // Extract type and id
+
+    std::string::size_type instanceSlashIdx = name.find('/', typeSlashIdx + 1);
+    if (instanceSlashIdx == std::string::npos) {
+        ALOGE(ERROR_MSG_PREFIX
+                "does not have /<type>/ component",
+                __FUNCTION__, name.c_str());
+        return BAD_VALUE;
+    }
+    std::string typeVal = name.substr(typeSlashIdx + 1, instanceSlashIdx - typeSlashIdx - 1);
+
+    if (instanceSlashIdx == name.size() - 1) {
+        ALOGE(ERROR_MSG_PREFIX
+                "does not have an /<id> component",
+                __FUNCTION__, name.c_str());
+        return BAD_VALUE;
+    }
+    std::string idVal = name.substr(instanceSlashIdx + 1);
+
+#undef ERROR_MSG_PREFIX
+
+    *major = static_cast<uint16_t>(majorVal);
+    *minor = static_cast<uint16_t>(minorVal);
+    *type = typeVal;
+    *id = idVal;
+
+    return OK;
+}
+
+
+
+CameraProviderManager::ProviderInfo::~ProviderInfo() {
+    // Destruction of ProviderInfo is only supposed to happen when the respective
+    // CameraProvider interface dies, so do not unregister callbacks.
+
+}
+
+status_t CameraProviderManager::mapToStatusT(const Status& s)  {
+    switch(s) {
+        case Status::OK:
+            return OK;
+        case Status::ILLEGAL_ARGUMENT:
+            return BAD_VALUE;
+        case Status::CAMERA_IN_USE:
+            return -EBUSY;
+        case Status::MAX_CAMERAS_IN_USE:
+            return -EUSERS;
+        case Status::METHOD_NOT_SUPPORTED:
+            return UNKNOWN_TRANSACTION;
+        case Status::OPERATION_NOT_SUPPORTED:
+            return INVALID_OPERATION;
+        case Status::CAMERA_DISCONNECTED:
+            return DEAD_OBJECT;
+        case Status::INTERNAL_ERROR:
+            return INVALID_OPERATION;
+    }
+    ALOGW("Unexpected HAL status code %d", s);
+    return INVALID_OPERATION;
+}
+
+const char* CameraProviderManager::statusToString(const Status& s) {
+    switch(s) {
+        case Status::OK:
+            return "OK";
+        case Status::ILLEGAL_ARGUMENT:
+            return "ILLEGAL_ARGUMENT";
+        case Status::CAMERA_IN_USE:
+            return "CAMERA_IN_USE";
+        case Status::MAX_CAMERAS_IN_USE:
+            return "MAX_CAMERAS_IN_USE";
+        case Status::METHOD_NOT_SUPPORTED:
+            return "METHOD_NOT_SUPPORTED";
+        case Status::OPERATION_NOT_SUPPORTED:
+            return "OPERATION_NOT_SUPPORTED";
+        case Status::CAMERA_DISCONNECTED:
+            return "CAMERA_DISCONNECTED";
+        case Status::INTERNAL_ERROR:
+            return "INTERNAL_ERROR";
+    }
+    ALOGW("Unexpected HAL status code %d", s);
+    return "UNKNOWN_ERROR";
+}
+
+const char* CameraProviderManager::deviceStatusToString(const CameraDeviceStatus& s) {
+    switch(s) {
+        case CameraDeviceStatus::NOT_PRESENT:
+            return "NOT_PRESENT";
+        case CameraDeviceStatus::PRESENT:
+            return "PRESENT";
+        case CameraDeviceStatus::ENUMERATING:
+            return "ENUMERATING";
+    }
+    ALOGW("Unexpected HAL device status code %d", s);
+    return "UNKNOWN_STATUS";
+}
+
+const char* CameraProviderManager::torchStatusToString(const TorchModeStatus& s) {
+    switch(s) {
+        case TorchModeStatus::NOT_AVAILABLE:
+            return "NOT_AVAILABLE";
+        case TorchModeStatus::AVAILABLE_OFF:
+            return "AVAILABLE_OFF";
+        case TorchModeStatus::AVAILABLE_ON:
+            return "AVAILABLE_ON";
+    }
+    ALOGW("Unexpected HAL torch mode status code %d", s);
+    return "UNKNOWN_STATUS";
+}
+
+
+status_t HidlVendorTagDescriptor::createDescriptorFromHidl(
+        const hardware::hidl_vec<hardware::camera::common::V1_0::VendorTagSection>& vts,
+        /*out*/
+        sp<VendorTagDescriptor>& descriptor) {
+
+    int tagCount = 0;
+
+    for (size_t s = 0; s < vts.size(); s++) {
+        tagCount += vts[s].tags.size();
+    }
+
+    if (tagCount < 0 || tagCount > INT32_MAX) {
+        ALOGE("%s: tag count %d from vendor tag sections is invalid.", __FUNCTION__, tagCount);
+        return BAD_VALUE;
+    }
+
+    Vector<uint32_t> tagArray;
+    LOG_ALWAYS_FATAL_IF(tagArray.resize(tagCount) != tagCount,
+            "%s: too many (%u) vendor tags defined.", __FUNCTION__, tagCount);
+
+
+    sp<HidlVendorTagDescriptor> desc = new HidlVendorTagDescriptor();
+    desc->mTagCount = tagCount;
+
+    SortedVector<String8> sections;
+    KeyedVector<uint32_t, String8> tagToSectionMap;
+
+    int idx = 0;
+    for (size_t s = 0; s < vts.size(); s++) {
+        const hardware::camera::common::V1_0::VendorTagSection& section = vts[s];
+        const char *sectionName = section.sectionName.c_str();
+        if (sectionName == NULL) {
+            ALOGE("%s: no section name defined for vendor tag section %zu.", __FUNCTION__, s);
+            return BAD_VALUE;
+        }
+        String8 sectionString(sectionName);
+        sections.add(sectionString);
+
+        for (size_t j = 0; j < section.tags.size(); j++) {
+            uint32_t tag = section.tags[j].tagId;
+            if (tag < CAMERA_METADATA_VENDOR_TAG_BOUNDARY) {
+                ALOGE("%s: vendor tag %d not in vendor tag section.", __FUNCTION__, tag);
+                return BAD_VALUE;
+            }
+
+            tagArray.editItemAt(idx++) = section.tags[j].tagId;
+
+            const char *tagName = section.tags[j].tagName.c_str();
+            if (tagName == NULL) {
+                ALOGE("%s: no tag name defined for vendor tag %d.", __FUNCTION__, tag);
+                return BAD_VALUE;
+            }
+            desc->mTagToNameMap.add(tag, String8(tagName));
+            tagToSectionMap.add(tag, sectionString);
+
+            int tagType = (int) section.tags[j].tagType;
+            if (tagType < 0 || tagType >= NUM_TYPES) {
+                ALOGE("%s: tag type %d from vendor ops does not exist.", __FUNCTION__, tagType);
+                return BAD_VALUE;
+            }
+            desc->mTagToTypeMap.add(tag, tagType);
+        }
+    }
+
+    desc->mSections = sections;
+
+    for (size_t i = 0; i < tagArray.size(); ++i) {
+        uint32_t tag = tagArray[i];
+        String8 sectionString = tagToSectionMap.valueFor(tag);
+
+        // Set up tag to section index map
+        ssize_t index = sections.indexOf(sectionString);
+        LOG_ALWAYS_FATAL_IF(index < 0, "index %zd must be non-negative", index);
+        desc->mTagToSectionMap.add(tag, static_cast<uint32_t>(index));
+
+        // Set up reverse mapping
+        ssize_t reverseIndex = -1;
+        if ((reverseIndex = desc->mReverseMapping.indexOfKey(sectionString)) < 0) {
+            KeyedVector<String8, uint32_t>* nameMapper = new KeyedVector<String8, uint32_t>();
+            reverseIndex = desc->mReverseMapping.add(sectionString, nameMapper);
+        }
+        desc->mReverseMapping[reverseIndex]->add(desc->mTagToNameMap.valueFor(tag), tag);
+    }
+
+    descriptor = desc;
+    return OK;
+}
+
+
+} // namespace android
diff --git a/services/camera/libcameraservice/common/CameraProviderManager.h b/services/camera/libcameraservice/common/CameraProviderManager.h
new file mode 100644
index 0000000..b1da831
--- /dev/null
+++ b/services/camera/libcameraservice/common/CameraProviderManager.h
@@ -0,0 +1,386 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_SERVERS_CAMERA_CAMERAPROVIDER_H
+#define ANDROID_SERVERS_CAMERA_CAMERAPROVIDER_H
+
+#include <vector>
+#include <string>
+#include <mutex>
+
+#include <camera/CameraParameters2.h>
+#include <camera/CameraMetadata.h>
+#include <camera/CameraBase.h>
+#include <utils/Errors.h>
+#include <android/hardware/camera/common/1.0/types.h>
+#include <android/hardware/camera/provider/2.4/ICameraProvider.h>
+//#include <android/hardware/camera/provider/2.4/ICameraProviderCallbacks.h>
+#include <android/hidl/manager/1.0/IServiceNotification.h>
+#include <camera/VendorTagDescriptor.h>
+
+namespace android {
+
+/**
+ * The vendor tag descriptor class that takes HIDL vendor tag information as
+ * input. Not part of VendorTagDescriptor class because that class is used
+ * in AIDL generated sources which don't have access to HIDL headers.
+ */
+class HidlVendorTagDescriptor : public VendorTagDescriptor {
+public:
+    /**
+     * Create a VendorTagDescriptor object from the HIDL VendorTagSection
+     * vector.
+     *
+     * Returns OK on success, or a negative error code.
+     */
+    static status_t createDescriptorFromHidl(
+            const hardware::hidl_vec<hardware::camera::common::V1_0::VendorTagSection>& vts,
+            /*out*/
+            sp<VendorTagDescriptor>& descriptor);
+};
+
+/**
+ * A manager for all camera providers available on an Android device.
+ *
+ * Responsible for enumerating providers and the individual camera devices
+ * they export, both at startup and as providers and devices are added/removed.
+ *
+ * Provides methods for requesting information about individual devices and for
+ * opening them for active use.
+ *
+ */
+class CameraProviderManager : virtual public hidl::manager::V1_0::IServiceNotification {
+public:
+
+    ~CameraProviderManager();
+
+    // Tiny proxy for the static methods in a HIDL interface that communicate with the hardware
+    // service manager, to be replacable in unit tests with a fake.
+    struct ServiceInteractionProxy {
+        virtual bool registerForNotifications(
+                const std::string &serviceName,
+                const sp<hidl::manager::V1_0::IServiceNotification>
+                &notification) = 0;
+        virtual sp<hardware::camera::provider::V2_4::ICameraProvider> getService(
+                const std::string &serviceName) = 0;
+        virtual ~ServiceInteractionProxy() {}
+    };
+
+    // Standard use case - call into the normal generated static methods which invoke
+    // the real hardware service manager
+    struct HardwareServiceInteractionProxy : public ServiceInteractionProxy {
+        virtual bool registerForNotifications(
+                const std::string &serviceName,
+                const sp<hidl::manager::V1_0::IServiceNotification>
+                &notification) override {
+            return hardware::camera::provider::V2_4::ICameraProvider::registerForNotifications(
+                    serviceName, notification);
+        }
+        virtual sp<hardware::camera::provider::V2_4::ICameraProvider> getService(
+                const std::string &serviceName) override {
+            return hardware::camera::provider::V2_4::ICameraProvider::getService(serviceName);
+        }
+    };
+
+    /**
+     * Listener interface for device/torch status changes
+     */
+    struct StatusListener : virtual public RefBase {
+        ~StatusListener() {}
+
+        virtual void onDeviceStatusChanged(const String8 &cameraId,
+                hardware::camera::common::V1_0::CameraDeviceStatus newStatus) = 0;
+        virtual void onTorchStatusChanged(const String8 &cameraId,
+                hardware::camera::common::V1_0::TorchModeStatus newStatus) = 0;
+    };
+
+    /**
+     * Initialize the manager and give it a status listener; optionally accepts a service
+     * interaction proxy.
+     *
+     * The default proxy communicates via the hardware service manager; alternate proxies can be
+     * used for testing. The lifetime of the proxy must exceed the lifetime of the manager.
+     */
+    status_t initialize(wp<StatusListener> listener,
+            ServiceInteractionProxy *proxy = &sHardwareServiceInteractionProxy);
+
+    /**
+     * Retrieve the total number of available cameras. This value may change dynamically as cameras
+     * are added or removed.
+     */
+    int getCameraCount() const;
+
+    /**
+     * Retrieve the number of 'standard' cameras; these are internal and
+     * backwards-compatible. This is the set of cameras that will be
+     * accessible via the old camera API, with IDs in range of
+     * [0, getStandardCameraCount()-1]. This value is not expected to change dynamically.
+     */
+    int getStandardCameraCount() const;
+
+    std::vector<std::string> getCameraDeviceIds() const;
+
+    /**
+     * Return true if a device with a given ID and major version exists
+     */
+    bool isValidDevice(const std::string &id, uint16_t majorVersion) const;
+
+    /**
+     * Return true if a device with a given ID has a flash unit. Returns false
+     * for devices that are unknown.
+     */
+    bool hasFlashUnit(const std::string &id) const;
+
+    /**
+     * Return the resource cost of this camera device
+     */
+    status_t getResourceCost(const std::string &id,
+            hardware::camera::common::V1_0::CameraResourceCost* cost) const;
+
+    /**
+     * Return the old camera API camera info
+     */
+    status_t getCameraInfo(const std::string &id,
+            hardware::CameraInfo* info) const;
+
+    /**
+     * Return API2 camera characteristics - returns NAME_NOT_FOUND if a device ID does
+     * not have a v3 or newer HAL version.
+     */
+    status_t getCameraCharacteristics(const std::string &id,
+            CameraMetadata* characteristics) const;
+
+    /**
+     * Return the highest supported device interface version for this ID
+     */
+    status_t getHighestSupportedVersion(const std::string &id,
+            hardware::hidl_version *v);
+
+    /**
+     * Turn on or off the flashlight on a given camera device.
+     * May fail if the device is in active use, or if the device doesn't exist, etc.
+     */
+    status_t setTorchMode(const std::string &id, bool enabled);
+
+    /**
+     * Setup vendor tags for all registered providers
+     */
+    status_t setUpVendorTags();
+
+    /**
+     * Open an active session to a camera device.
+     *
+     * This fully powers on the camera device hardware, and returns a handle to a
+     * session to be used for hardware configuration and operation.
+     */
+    status_t openSession(const std::string &id,
+            const sp<hardware::camera::device::V3_2::ICameraDeviceCallback>& callback,
+            /*out*/
+            sp<hardware::camera::device::V3_2::ICameraDeviceSession> *session);
+
+    status_t openSession(const std::string &id,
+            const sp<hardware::camera::device::V1_0::ICameraDeviceCallback>& callback,
+            /*out*/
+            sp<hardware::camera::device::V1_0::ICameraDevice> *session);
+
+    /**
+     * IServiceNotification::onRegistration
+     * Invoked by the hardware service manager when a new camera provider is registered
+     */
+    virtual hardware::Return<void> onRegistration(const hardware::hidl_string& fqName,
+            const hardware::hidl_string& name,
+            bool preexisting) override;
+
+    /**
+     * Dump out information about available providers and devices
+     */
+    status_t dump(int fd, const Vector<String16>& args);
+
+    /**
+     * Conversion methods between HAL Status and status_t and strings
+     */
+    static status_t mapToStatusT(const hardware::camera::common::V1_0::Status& s);
+    static const char* statusToString(const hardware::camera::common::V1_0::Status& s);
+
+private:
+    // All private members, unless otherwise noted, expect mInterfaceMutex to be locked before use
+    mutable std::mutex mInterfaceMutex;
+
+    // the status listener update callbacks will lock mStatusMutex
+    mutable std::mutex mStatusListenerMutex;
+    wp<StatusListener> mListener;
+    ServiceInteractionProxy* mServiceProxy;
+
+    static HardwareServiceInteractionProxy sHardwareServiceInteractionProxy;
+
+    struct ProviderInfo :
+            virtual public hardware::camera::provider::V2_4::ICameraProviderCallback,
+            virtual public hardware::hidl_death_recipient
+    {
+        const std::string mProviderName;
+        const sp<hardware::camera::provider::V2_4::ICameraProvider> mInterface;
+
+        ProviderInfo(const std::string &providerName,
+                sp<hardware::camera::provider::V2_4::ICameraProvider>& interface,
+                CameraProviderManager *manager);
+        ~ProviderInfo();
+
+        status_t initialize();
+
+        const std::string& getType() const;
+
+        status_t addDevice(const std::string& name,
+                hardware::camera::common::V1_0::CameraDeviceStatus initialStatus =
+                hardware::camera::common::V1_0::CameraDeviceStatus::PRESENT,
+                /*out*/ std::string *parsedId = nullptr);
+
+        status_t dump(int fd, const Vector<String16>& args) const;
+
+        // ICameraProviderCallbacks interface - these lock the parent mInterfaceMutex
+        virtual hardware::Return<void> cameraDeviceStatusChange(
+                const hardware::hidl_string& cameraDeviceName,
+                hardware::camera::common::V1_0::CameraDeviceStatus newStatus) override;
+        virtual hardware::Return<void> torchModeStatusChange(
+                const hardware::hidl_string& cameraDeviceName,
+                hardware::camera::common::V1_0::TorchModeStatus newStatus) override;
+
+        // hidl_death_recipient interface - this locks the parent mInterfaceMutex
+        virtual void serviceDied(uint64_t cookie, const wp<hidl::base::V1_0::IBase>& who) override;
+
+        // Basic device information, common to all camera devices
+        struct DeviceInfo {
+            const std::string mName;  // Full instance name
+            const std::string mId;    // ID section of full name
+            const hardware::hidl_version mVersion;
+
+            const hardware::camera::common::V1_0::CameraResourceCost mResourceCost;
+
+            hardware::camera::common::V1_0::CameraDeviceStatus mStatus;
+
+            bool hasFlashUnit() const { return mHasFlashUnit; }
+            virtual status_t setTorchMode(bool enabled) = 0;
+            virtual status_t getCameraInfo(hardware::CameraInfo *info) const = 0;
+            virtual status_t getCameraCharacteristics(CameraMetadata *characteristics) const {
+                (void) characteristics;
+                return INVALID_OPERATION;
+            }
+
+            DeviceInfo(const std::string& name, const std::string &id,
+                    const hardware::hidl_version& version,
+                    const hardware::camera::common::V1_0::CameraResourceCost& resourceCost) :
+                    mName(name), mId(id), mVersion(version), mResourceCost(resourceCost),
+                    mStatus(hardware::camera::common::V1_0::CameraDeviceStatus::PRESENT),
+                    mHasFlashUnit(false) {}
+            virtual ~DeviceInfo();
+        protected:
+            bool mHasFlashUnit;
+
+            template<class InterfaceT>
+            static status_t setTorchMode(InterfaceT& interface, bool enabled);
+        };
+        std::vector<std::unique_ptr<DeviceInfo>> mDevices;
+
+        // HALv1-specific camera fields, including the actual device interface
+        struct DeviceInfo1 : public DeviceInfo {
+            typedef hardware::camera::device::V1_0::ICameraDevice InterfaceT;
+            const sp<InterfaceT> mInterface;
+
+            virtual status_t setTorchMode(bool enabled) override;
+            virtual status_t getCameraInfo(hardware::CameraInfo *info) const override;
+
+            DeviceInfo1(const std::string& name, const std::string &id,
+                    uint16_t minorVersion,
+                    const hardware::camera::common::V1_0::CameraResourceCost& resourceCost,
+                    sp<InterfaceT> interface);
+            virtual ~DeviceInfo1();
+        private:
+            CameraParameters2 mDefaultParameters;
+        };
+
+        // HALv3-specific camera fields, including the actual device interface
+        struct DeviceInfo3 : public DeviceInfo {
+            typedef hardware::camera::device::V3_2::ICameraDevice InterfaceT;
+            const sp<InterfaceT> mInterface;
+
+            virtual status_t setTorchMode(bool enabled) override;
+            virtual status_t getCameraInfo(hardware::CameraInfo *info) const override;
+            virtual status_t getCameraCharacteristics(
+                    CameraMetadata *characteristics) const override;
+
+            DeviceInfo3(const std::string& name, const std::string &id,
+                    uint16_t minorVersion,
+                    const hardware::camera::common::V1_0::CameraResourceCost& resourceCost,
+                    sp<InterfaceT> interface);
+            virtual ~DeviceInfo3();
+        private:
+            CameraMetadata mCameraCharacteristics;
+        };
+
+    private:
+        std::string mType;
+        uint32_t mId;
+
+        std::mutex mLock;
+
+        CameraProviderManager *mManager;
+
+        // Templated method to instantiate the right kind of DeviceInfo and call the
+        // right CameraProvider getCameraDeviceInterface_* method.
+        template<class DeviceInfoT>
+        std::unique_ptr<DeviceInfo> initializeDeviceInfo(const std::string &name,
+                const std::string &id, uint16_t minorVersion) const;
+
+        // Helper for initializeDeviceInfo to use the right CameraProvider get method.
+        template<class InterfaceT>
+        sp<InterfaceT> getDeviceInterface(const std::string &name) const;
+
+        // Parse provider instance name for type and id
+        static status_t parseProviderName(const std::string& name,
+                std::string *type, uint32_t *id);
+
+        // Parse device instance name for device version, type, and id.
+        static status_t parseDeviceName(const std::string& name,
+                uint16_t *major, uint16_t *minor, std::string *type, std::string *id);
+    };
+
+    // Utility to find a DeviceInfo by ID; pointer is only valid while mInterfaceMutex is held
+    // and the calling code doesn't mutate the list of providers or their lists of devices.
+    // Finds the first device of the given ID that falls within the requested version range
+    //   minVersion <= deviceVersion < maxVersion
+    // No guarantees on the order of traversal
+    ProviderInfo::DeviceInfo* findDeviceInfoLocked(const std::string& id,
+            hardware::hidl_version minVersion = hardware::hidl_version{0,0},
+            hardware::hidl_version maxVersion = hardware::hidl_version{1000,0}) const;
+
+    status_t addProviderLocked(const std::string& newProvider, bool expected = true);
+
+    status_t removeProvider(const std::string& provider);
+    sp<StatusListener> getStatusListener() const;
+
+    bool isValidDeviceLocked(const std::string &id, uint16_t majorVersion) const;
+
+    std::vector<sp<ProviderInfo>> mProviders;
+
+    static const char* deviceStatusToString(
+        const hardware::camera::common::V1_0::CameraDeviceStatus&);
+    static const char* torchStatusToString(
+        const hardware::camera::common::V1_0::TorchModeStatus&);
+
+};
+
+} // namespace android
+
+#endif
diff --git a/services/camera/libcameraservice/common/FrameProcessorBase.cpp b/services/camera/libcameraservice/common/FrameProcessorBase.cpp
index 2ef3057..9e78f88 100644
--- a/services/camera/libcameraservice/common/FrameProcessorBase.cpp
+++ b/services/camera/libcameraservice/common/FrameProcessorBase.cpp
@@ -123,7 +123,7 @@
     ATRACE_CALL();
     CaptureResult result;
 
-    ALOGV("%s: Camera %d: Process new frames", __FUNCTION__, device->getId());
+    ALOGV("%s: Camera %s: Process new frames", __FUNCTION__, device->getId().string());
 
     while ( (res = device->getNextResult(&result)) == OK) {
 
@@ -133,8 +133,8 @@
 
         entry = result.mMetadata.find(ANDROID_REQUEST_FRAME_COUNT);
         if (entry.count == 0) {
-            ALOGE("%s: Camera %d: Error reading frame number",
-                    __FUNCTION__, device->getId());
+            ALOGE("%s: Camera %s: Error reading frame number",
+                    __FUNCTION__, device->getId().string());
             break;
         }
         ATRACE_INT("cam2_frame", entry.data.i32[0]);
@@ -149,8 +149,8 @@
         }
     }
     if (res != NOT_ENOUGH_DATA) {
-        ALOGE("%s: Camera %d: Error getting next frame: %s (%d)",
-                __FUNCTION__, device->getId(), strerror(-res), res);
+        ALOGE("%s: Camera %s: Error getting next frame: %s (%d)",
+                __FUNCTION__, device->getId().string(), strerror(-res), res);
         return;
     }
 
@@ -159,8 +159,8 @@
 
 bool FrameProcessorBase::processSingleFrame(CaptureResult &result,
                                             const sp<CameraDeviceBase> &device) {
-    ALOGV("%s: Camera %d: Process single frame (is empty? %d)",
-          __FUNCTION__, device->getId(), result.mMetadata.isEmpty());
+    ALOGV("%s: Camera %s: Process single frame (is empty? %d)",
+            __FUNCTION__, device->getId().string(), result.mMetadata.isEmpty());
     return processListeners(result, device) == OK;
 }
 
@@ -178,8 +178,8 @@
         entry = result.mMetadata.find(ANDROID_QUIRKS_PARTIAL_RESULT);
         if (entry.count != 0 &&
                 entry.data.u8[0] == ANDROID_QUIRKS_PARTIAL_RESULT_PARTIAL) {
-            ALOGV("%s: Camera %d: This is a partial result",
-                    __FUNCTION__, device->getId());
+            ALOGV("%s: Camera %s: This is a partial result",
+                    __FUNCTION__, device->getId().string());
             isPartialResult = true;
         }
     }
@@ -190,7 +190,7 @@
     // include CaptureResultExtras.
     entry = result.mMetadata.find(ANDROID_REQUEST_ID);
     if (entry.count == 0) {
-        ALOGE("%s: Camera %d: Error reading frame id", __FUNCTION__, device->getId());
+        ALOGE("%s: Camera %s: Error reading frame id", __FUNCTION__, device->getId().string());
         return BAD_VALUE;
     }
     int32_t requestId = entry.data.i32[0];
@@ -215,8 +215,8 @@
             item++;
         }
     }
-    ALOGV("%s: Camera %d: Got %zu range listeners out of %zu", __FUNCTION__,
-          device->getId(), listeners.size(), mRangeListeners.size());
+    ALOGV("%s: Camera %s: Got %zu range listeners out of %zu", __FUNCTION__,
+          device->getId().string(), listeners.size(), mRangeListeners.size());
 
     List<sp<FilteredListener> >::iterator item = listeners.begin();
     for (; item != listeners.end(); item++) {
diff --git a/services/camera/libcameraservice/device1/CameraHardwareInterface.cpp b/services/camera/libcameraservice/device1/CameraHardwareInterface.cpp
new file mode 100644
index 0000000..b52c0d8
--- /dev/null
+++ b/services/camera/libcameraservice/device1/CameraHardwareInterface.cpp
@@ -0,0 +1,1004 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#define LOG_TAG "CameraHardwareInterface"
+//#define LOG_NDEBUG 0
+
+#include <inttypes.h>
+#include "CameraHardwareInterface.h"
+
+namespace android {
+
+using namespace hardware::camera::device::V1_0;
+using namespace hardware::camera::common::V1_0;
+using hardware::hidl_handle;
+
+CameraHardwareInterface::~CameraHardwareInterface()
+{
+    ALOGI("Destroying camera %s", mName.string());
+    if (mDevice) {
+        int rc = mDevice->common.close(&mDevice->common);
+        if (rc != OK)
+            ALOGE("Could not close camera %s: %d", mName.string(), rc);
+    }
+    if (mHidlDevice != nullptr) {
+        mHidlDevice->close();
+        mHidlDevice.clear();
+        cleanupCirculatingBuffers();
+    }
+}
+
+status_t CameraHardwareInterface::initialize(CameraModule *module)
+{
+    if (mHidlDevice != nullptr) {
+        ALOGE("%s: camera hardware interface has been initialized to HIDL path!", __FUNCTION__);
+        return INVALID_OPERATION;
+    }
+    ALOGI("Opening camera %s", mName.string());
+    camera_info info;
+    status_t res = module->getCameraInfo(atoi(mName.string()), &info);
+    if (res != OK) {
+        return res;
+    }
+
+    int rc = OK;
+    if (module->getModuleApiVersion() >= CAMERA_MODULE_API_VERSION_2_3 &&
+        info.device_version > CAMERA_DEVICE_API_VERSION_1_0) {
+        // Open higher version camera device as HAL1.0 device.
+        rc = module->openLegacy(mName.string(),
+                                 CAMERA_DEVICE_API_VERSION_1_0,
+                                 (hw_device_t **)&mDevice);
+    } else {
+        rc = module->open(mName.string(), (hw_device_t **)&mDevice);
+    }
+    if (rc != OK) {
+        ALOGE("Could not open camera %s: %d", mName.string(), rc);
+        return rc;
+    }
+    initHalPreviewWindow();
+    return rc;
+}
+
+status_t CameraHardwareInterface::initialize(sp<CameraProviderManager> manager) {
+    if (mDevice) {
+        ALOGE("%s: camera hardware interface has been initialized to libhardware path!",
+                __FUNCTION__);
+        return INVALID_OPERATION;
+    }
+
+    ALOGI("Opening camera %s", mName.string());
+
+    status_t ret = manager->openSession(mName.string(), this, &mHidlDevice);
+    if (ret != OK) {
+        ALOGE("%s: openSession failed! %s (%d)", __FUNCTION__, strerror(-ret), ret);
+    }
+    return ret;
+}
+
+status_t CameraHardwareInterface::setPreviewScalingMode(int scalingMode)
+{
+    int rc = OK;
+    mPreviewScalingMode = scalingMode;
+    if (mPreviewWindow != nullptr) {
+        rc = native_window_set_scaling_mode(mPreviewWindow.get(),
+                scalingMode);
+    }
+    return rc;
+}
+
+status_t CameraHardwareInterface::setPreviewTransform(int transform) {
+    int rc = OK;
+    mPreviewTransform = transform;
+    if (mPreviewWindow != nullptr) {
+        rc = native_window_set_buffers_transform(mPreviewWindow.get(),
+                mPreviewTransform);
+    }
+    return rc;
+}
+
+/**
+ * Implementation of android::hardware::camera::device::V1_0::ICameraDeviceCallback
+ */
+hardware::Return<void> CameraHardwareInterface::notifyCallback(
+        NotifyCallbackMsg msgType, int32_t ext1, int32_t ext2) {
+    sNotifyCb((int32_t) msgType, ext1, ext2, (void*) this);
+    return hardware::Void();
+}
+
+hardware::Return<uint32_t> CameraHardwareInterface::registerMemory(
+        const hardware::hidl_handle& descriptor,
+        uint32_t bufferSize, uint32_t bufferCount) {
+    if (descriptor->numFds != 1) {
+        ALOGE("%s: camera memory descriptor has numFds %d (expect 1)",
+                __FUNCTION__, descriptor->numFds);
+        return 0;
+    }
+    if (descriptor->data[0] < 0) {
+        ALOGE("%s: camera memory descriptor has FD %d (expect >= 0)",
+                __FUNCTION__, descriptor->data[0]);
+        return 0;
+    }
+
+    camera_memory_t* mem = sGetMemory(descriptor->data[0], bufferSize, bufferCount, this);
+    sp<CameraHeapMemory> camMem(static_cast<CameraHeapMemory *>(mem->handle));
+    int memPoolId = camMem->mHeap->getHeapID();
+    if (memPoolId < 0) {
+        ALOGE("%s: CameraHeapMemory has FD %d (expect >= 0)", __FUNCTION__, memPoolId);
+        return 0;
+    }
+    mHidlMemPoolMap.insert(std::make_pair(memPoolId, mem));
+    return memPoolId;
+}
+
+hardware::Return<void> CameraHardwareInterface::unregisterMemory(uint32_t memId) {
+    if (mHidlMemPoolMap.count(memId) == 0) {
+        ALOGE("%s: memory pool ID %d not found", __FUNCTION__, memId);
+        return hardware::Void();
+    }
+    camera_memory_t* mem = mHidlMemPoolMap.at(memId);
+    sPutMemory(mem);
+    mHidlMemPoolMap.erase(memId);
+    return hardware::Void();
+}
+
+hardware::Return<void> CameraHardwareInterface::dataCallback(
+        DataCallbackMsg msgType, uint32_t data, uint32_t bufferIndex,
+        const hardware::camera::device::V1_0::CameraFrameMetadata& metadata) {
+    if (mHidlMemPoolMap.count(data) == 0) {
+        ALOGE("%s: memory pool ID %d not found", __FUNCTION__, data);
+        return hardware::Void();
+    }
+    camera_frame_metadata_t md;
+    md.number_of_faces = metadata.faces.size();
+    md.faces = (camera_face_t*) metadata.faces.data();
+    sDataCb((int32_t) msgType, mHidlMemPoolMap.at(data), bufferIndex, &md, this);
+    return hardware::Void();
+}
+
+hardware::Return<void> CameraHardwareInterface::dataCallbackTimestamp(
+        DataCallbackMsg msgType, uint32_t data,
+        uint32_t bufferIndex, int64_t timestamp) {
+    if (mHidlMemPoolMap.count(data) == 0) {
+        ALOGE("%s: memory pool ID %d not found", __FUNCTION__, data);
+        return hardware::Void();
+    }
+    sDataCbTimestamp(timestamp, (int32_t) msgType, mHidlMemPoolMap.at(data), bufferIndex, this);
+    return hardware::Void();
+}
+
+hardware::Return<void> CameraHardwareInterface::handleCallbackTimestamp(
+        DataCallbackMsg msgType, const hidl_handle& frameData, uint32_t data,
+        uint32_t bufferIndex, int64_t timestamp) {
+    if (mHidlMemPoolMap.count(data) == 0) {
+        ALOGE("%s: memory pool ID %d not found", __FUNCTION__, data);
+        return hardware::Void();
+    }
+    sp<CameraHeapMemory> mem(static_cast<CameraHeapMemory *>(mHidlMemPoolMap.at(data)->handle));
+    VideoNativeHandleMetadata* md = (VideoNativeHandleMetadata*)
+            mem->mBuffers[bufferIndex]->pointer();
+    md->pHandle = const_cast<native_handle_t*>(frameData.getNativeHandle());
+    sDataCbTimestamp(timestamp, (int32_t) msgType, mHidlMemPoolMap.at(data), bufferIndex, this);
+    return hardware::Void();
+}
+
+std::pair<bool, uint64_t> CameraHardwareInterface::getBufferId(
+        ANativeWindowBuffer* anb) {
+    std::lock_guard<std::mutex> lock(mBufferIdMapLock);
+
+    buffer_handle_t& buf = anb->handle;
+    auto it = mBufferIdMap.find(buf);
+    if (it == mBufferIdMap.end()) {
+        uint64_t bufId = mNextBufferId++;
+        mBufferIdMap[buf] = bufId;
+        mReversedBufMap[bufId] = anb;
+        return std::make_pair(true, bufId);
+    } else {
+        return std::make_pair(false, it->second);
+    }
+}
+
+void CameraHardwareInterface::cleanupCirculatingBuffers() {
+    std::lock_guard<std::mutex> lock(mBufferIdMapLock);
+    mBufferIdMap.clear();
+    mReversedBufMap.clear();
+}
+
+hardware::Return<void>
+CameraHardwareInterface::dequeueBuffer(dequeueBuffer_cb _hidl_cb) {
+    ANativeWindow *a = mPreviewWindow.get();
+    if (a == nullptr) {
+        ALOGE("%s: preview window is null", __FUNCTION__);
+        return hardware::Void();
+    }
+    ANativeWindowBuffer* anb;
+    int rc = native_window_dequeue_buffer_and_wait(a, &anb);
+    Status s = Status::INTERNAL_ERROR;
+    uint64_t bufferId = 0;
+    uint32_t stride = 0;
+    hidl_handle buf = nullptr;
+    if (rc == OK) {
+        s = Status::OK;
+        auto pair = getBufferId(anb);
+        buf = (pair.first) ? anb->handle : nullptr;
+        bufferId = pair.second;
+        stride = anb->stride;
+    }
+
+    _hidl_cb(s, bufferId, buf, stride);
+    return hardware::Void();
+}
+
+hardware::Return<Status>
+CameraHardwareInterface::enqueueBuffer(uint64_t bufferId) {
+    ANativeWindow *a = mPreviewWindow.get();
+    if (a == nullptr) {
+        ALOGE("%s: preview window is null", __FUNCTION__);
+        return Status::INTERNAL_ERROR;
+    }
+    if (mReversedBufMap.count(bufferId) == 0) {
+        ALOGE("%s: bufferId %" PRIu64 " not found", __FUNCTION__, bufferId);
+        return Status::ILLEGAL_ARGUMENT;
+    }
+    int rc = a->queueBuffer(a, mReversedBufMap.at(bufferId), -1);
+    if (rc == 0) {
+        return Status::OK;
+    }
+    return Status::INTERNAL_ERROR;
+}
+
+hardware::Return<Status>
+CameraHardwareInterface::cancelBuffer(uint64_t bufferId) {
+    ANativeWindow *a = mPreviewWindow.get();
+    if (a == nullptr) {
+        ALOGE("%s: preview window is null", __FUNCTION__);
+        return Status::INTERNAL_ERROR;
+    }
+    if (mReversedBufMap.count(bufferId) == 0) {
+        ALOGE("%s: bufferId %" PRIu64 " not found", __FUNCTION__, bufferId);
+        return Status::ILLEGAL_ARGUMENT;
+    }
+    int rc = a->cancelBuffer(a, mReversedBufMap.at(bufferId), -1);
+    if (rc == 0) {
+        return Status::OK;
+    }
+    return Status::INTERNAL_ERROR;
+}
+
+hardware::Return<Status>
+CameraHardwareInterface::setBufferCount(uint32_t count) {
+    ANativeWindow *a = mPreviewWindow.get();
+    if (a != nullptr) {
+        // Workaround for b/27039775
+        // Previously, setting the buffer count would reset the buffer
+        // queue's flag that allows for all buffers to be dequeued on the
+        // producer side, instead of just the producer's declared max count,
+        // if no filled buffers have yet been queued by the producer.  This
+        // reset no longer happens, but some HALs depend on this behavior,
+        // so it needs to be maintained for HAL backwards compatibility.
+        // Simulate the prior behavior by disconnecting/reconnecting to the
+        // window and setting the values again.  This has the drawback of
+        // actually causing memory reallocation, which may not have happened
+        // in the past.
+        native_window_api_disconnect(a, NATIVE_WINDOW_API_CAMERA);
+        native_window_api_connect(a, NATIVE_WINDOW_API_CAMERA);
+        if (mPreviewScalingMode != NOT_SET) {
+            native_window_set_scaling_mode(a, mPreviewScalingMode);
+        }
+        if (mPreviewTransform != NOT_SET) {
+            native_window_set_buffers_transform(a, mPreviewTransform);
+        }
+        if (mPreviewWidth != NOT_SET) {
+            native_window_set_buffers_dimensions(a,
+                    mPreviewWidth, mPreviewHeight);
+            native_window_set_buffers_format(a, mPreviewFormat);
+        }
+        if (mPreviewUsage != 0) {
+            native_window_set_usage(a, mPreviewUsage);
+        }
+        if (mPreviewSwapInterval != NOT_SET) {
+            a->setSwapInterval(a, mPreviewSwapInterval);
+        }
+        if (mPreviewCrop.left != NOT_SET) {
+            native_window_set_crop(a, &(mPreviewCrop));
+        }
+    }
+    int rc = native_window_set_buffer_count(a, count);
+    if (rc == OK) {
+        cleanupCirculatingBuffers();
+        return Status::OK;
+    }
+    return Status::INTERNAL_ERROR;
+}
+
+hardware::Return<Status>
+CameraHardwareInterface::setBuffersGeometry(
+        uint32_t w, uint32_t h, hardware::graphics::common::V1_0::PixelFormat format) {
+    Status s = Status::INTERNAL_ERROR;
+    ANativeWindow *a = mPreviewWindow.get();
+    if (a == nullptr) {
+        ALOGE("%s: preview window is null", __FUNCTION__);
+        return s;
+    }
+    mPreviewWidth = w;
+    mPreviewHeight = h;
+    mPreviewFormat = (int) format;
+    int rc = native_window_set_buffers_dimensions(a, w, h);
+    if (rc == OK) {
+        rc = native_window_set_buffers_format(a, mPreviewFormat);
+    }
+    if (rc == OK) {
+        cleanupCirculatingBuffers();
+        s = Status::OK;
+    }
+    return s;
+}
+
+hardware::Return<Status>
+CameraHardwareInterface::setCrop(int32_t left, int32_t top, int32_t right, int32_t bottom) {
+    Status s = Status::INTERNAL_ERROR;
+    ANativeWindow *a = mPreviewWindow.get();
+    if (a == nullptr) {
+        ALOGE("%s: preview window is null", __FUNCTION__);
+        return s;
+    }
+    mPreviewCrop.left = left;
+    mPreviewCrop.top = top;
+    mPreviewCrop.right = right;
+    mPreviewCrop.bottom = bottom;
+    int rc = native_window_set_crop(a, &mPreviewCrop);
+    if (rc == OK) {
+        s = Status::OK;
+    }
+    return s;
+}
+
+hardware::Return<Status>
+CameraHardwareInterface::setUsage(hardware::graphics::allocator::V2_0::ProducerUsage usage) {
+    Status s = Status::INTERNAL_ERROR;
+    ANativeWindow *a = mPreviewWindow.get();
+    if (a == nullptr) {
+        ALOGE("%s: preview window is null", __FUNCTION__);
+        return s;
+    }
+    mPreviewUsage = (int) usage;
+    int rc = native_window_set_usage(a, mPreviewUsage);
+    if (rc == OK) {
+        cleanupCirculatingBuffers();
+        s = Status::OK;
+    }
+    return s;
+}
+
+hardware::Return<Status>
+CameraHardwareInterface::setSwapInterval(int32_t interval) {
+    Status s = Status::INTERNAL_ERROR;
+    ANativeWindow *a = mPreviewWindow.get();
+    if (a == nullptr) {
+        ALOGE("%s: preview window is null", __FUNCTION__);
+        return s;
+    }
+    mPreviewSwapInterval = interval;
+    int rc = a->setSwapInterval(a, interval);
+    if (rc == OK) {
+        s = Status::OK;
+    }
+    return s;
+}
+
+hardware::Return<void>
+CameraHardwareInterface::getMinUndequeuedBufferCount(getMinUndequeuedBufferCount_cb _hidl_cb) {
+    ANativeWindow *a = mPreviewWindow.get();
+    if (a == nullptr) {
+        ALOGE("%s: preview window is null", __FUNCTION__);
+        return hardware::Void();
+    }
+    int count = 0;
+    int rc = a->query(a, NATIVE_WINDOW_MIN_UNDEQUEUED_BUFFERS, &count);
+    Status s = Status::INTERNAL_ERROR;
+    if (rc == OK) {
+        s = Status::OK;
+    }
+    _hidl_cb(s, count);
+    return hardware::Void();
+}
+
+hardware::Return<Status>
+CameraHardwareInterface::setTimestamp(int64_t timestamp) {
+    Status s = Status::INTERNAL_ERROR;
+    ANativeWindow *a = mPreviewWindow.get();
+    if (a == nullptr) {
+        ALOGE("%s: preview window is null", __FUNCTION__);
+        return s;
+    }
+    int rc = native_window_set_buffers_timestamp(a, timestamp);
+    if (rc == OK) {
+        s = Status::OK;
+    }
+    return s;
+}
+
+status_t CameraHardwareInterface::setPreviewWindow(const sp<ANativeWindow>& buf)
+{
+    ALOGV("%s(%s) buf %p", __FUNCTION__, mName.string(), buf.get());
+    if (CC_LIKELY(mHidlDevice != nullptr)) {
+        mPreviewWindow = buf;
+        if (buf != nullptr) {
+            if (mPreviewScalingMode != NOT_SET) {
+                setPreviewScalingMode(mPreviewScalingMode);
+            }
+            if (mPreviewTransform != NOT_SET) {
+                setPreviewTransform(mPreviewTransform);
+            }
+        }
+        return CameraProviderManager::mapToStatusT(
+                mHidlDevice->setPreviewWindow(buf.get() ? this : nullptr));
+    } else if (mDevice) {
+        if (mDevice->ops->set_preview_window) {
+            mPreviewWindow = buf;
+            if (buf != nullptr) {
+                if (mPreviewScalingMode != NOT_SET) {
+                    setPreviewScalingMode(mPreviewScalingMode);
+                }
+                if (mPreviewTransform != NOT_SET) {
+                    setPreviewTransform(mPreviewTransform);
+                }
+            }
+            mHalPreviewWindow.user = this;
+            ALOGV("%s &mHalPreviewWindow %p mHalPreviewWindow.user %p",__FUNCTION__,
+                    &mHalPreviewWindow, mHalPreviewWindow.user);
+            return mDevice->ops->set_preview_window(mDevice,
+                    buf.get() ? &mHalPreviewWindow.nw : 0);
+        }
+    }
+    return INVALID_OPERATION;
+}
+
+void CameraHardwareInterface::setCallbacks(notify_callback notify_cb,
+        data_callback data_cb,
+        data_callback_timestamp data_cb_timestamp,
+        void* user)
+{
+    mNotifyCb = notify_cb;
+    mDataCb = data_cb;
+    mDataCbTimestamp = data_cb_timestamp;
+    mCbUser = user;
+
+    ALOGV("%s(%s)", __FUNCTION__, mName.string());
+
+    if (mDevice && mDevice->ops->set_callbacks) {
+        mDevice->ops->set_callbacks(mDevice,
+                               sNotifyCb,
+                               sDataCb,
+                               sDataCbTimestamp,
+                               sGetMemory,
+                               this);
+    }
+}
+
+void CameraHardwareInterface::enableMsgType(int32_t msgType)
+{
+    ALOGV("%s(%s)", __FUNCTION__, mName.string());
+    if (CC_LIKELY(mHidlDevice != nullptr)) {
+        mHidlDevice->enableMsgType(msgType);
+    } else if (mDevice && mDevice->ops->enable_msg_type) {
+        mDevice->ops->enable_msg_type(mDevice, msgType);
+    }
+}
+
+void CameraHardwareInterface::disableMsgType(int32_t msgType)
+{
+    ALOGV("%s(%s)", __FUNCTION__, mName.string());
+    if (CC_LIKELY(mHidlDevice != nullptr)) {
+        mHidlDevice->disableMsgType(msgType);
+    } else if (mDevice && mDevice->ops->disable_msg_type) {
+        mDevice->ops->disable_msg_type(mDevice, msgType);
+    }
+}
+
+int CameraHardwareInterface::msgTypeEnabled(int32_t msgType)
+{
+    ALOGV("%s(%s)", __FUNCTION__, mName.string());
+    if (CC_LIKELY(mHidlDevice != nullptr)) {
+        return mHidlDevice->msgTypeEnabled(msgType);
+    } else if (mDevice && mDevice->ops->msg_type_enabled) {
+        return mDevice->ops->msg_type_enabled(mDevice, msgType);
+    }
+    return false;
+}
+
+status_t CameraHardwareInterface::startPreview()
+{
+    ALOGV("%s(%s)", __FUNCTION__, mName.string());
+    if (CC_LIKELY(mHidlDevice != nullptr)) {
+        return CameraProviderManager::mapToStatusT(
+                mHidlDevice->startPreview());
+    } else if (mDevice && mDevice->ops->start_preview) {
+        return mDevice->ops->start_preview(mDevice);
+    }
+    return INVALID_OPERATION;
+}
+
+void CameraHardwareInterface::stopPreview()
+{
+    ALOGV("%s(%s)", __FUNCTION__, mName.string());
+    if (CC_LIKELY(mHidlDevice != nullptr)) {
+        mHidlDevice->stopPreview();
+    } else if (mDevice && mDevice->ops->stop_preview) {
+        mDevice->ops->stop_preview(mDevice);
+    }
+}
+
+int CameraHardwareInterface::previewEnabled()
+{
+    ALOGV("%s(%s)", __FUNCTION__, mName.string());
+    if (CC_LIKELY(mHidlDevice != nullptr)) {
+        return mHidlDevice->previewEnabled();
+    } else if (mDevice && mDevice->ops->preview_enabled) {
+        return mDevice->ops->preview_enabled(mDevice);
+    }
+    return false;
+}
+
+status_t CameraHardwareInterface::storeMetaDataInBuffers(int enable)
+{
+    ALOGV("%s(%s)", __FUNCTION__, mName.string());
+    if (CC_LIKELY(mHidlDevice != nullptr)) {
+        return CameraProviderManager::mapToStatusT(
+                mHidlDevice->storeMetaDataInBuffers(enable));
+    } else if (mDevice && mDevice->ops->store_meta_data_in_buffers) {
+        return mDevice->ops->store_meta_data_in_buffers(mDevice, enable);
+    }
+    return enable ? INVALID_OPERATION: OK;
+}
+
+status_t CameraHardwareInterface::startRecording()
+{
+    ALOGV("%s(%s)", __FUNCTION__, mName.string());
+    if (CC_LIKELY(mHidlDevice != nullptr)) {
+        return CameraProviderManager::mapToStatusT(
+                mHidlDevice->startRecording());
+    } else if (mDevice && mDevice->ops->start_recording) {
+        return mDevice->ops->start_recording(mDevice);
+    }
+    return INVALID_OPERATION;
+}
+
+/**
+ * Stop a previously started recording.
+ */
+void CameraHardwareInterface::stopRecording()
+{
+    ALOGV("%s(%s)", __FUNCTION__, mName.string());
+    if (CC_LIKELY(mHidlDevice != nullptr)) {
+        mHidlDevice->stopRecording();
+    } else if (mDevice && mDevice->ops->stop_recording) {
+        mDevice->ops->stop_recording(mDevice);
+    }
+}
+
+/**
+ * Returns true if recording is enabled.
+ */
+int CameraHardwareInterface::recordingEnabled()
+{
+    ALOGV("%s(%s)", __FUNCTION__, mName.string());
+    if (CC_LIKELY(mHidlDevice != nullptr)) {
+        return mHidlDevice->recordingEnabled();
+    } else if (mDevice && mDevice->ops->recording_enabled) {
+        return mDevice->ops->recording_enabled(mDevice);
+    }
+    return false;
+}
+
+void CameraHardwareInterface::releaseRecordingFrame(const sp<IMemory>& mem)
+{
+    ALOGV("%s(%s)", __FUNCTION__, mName.string());
+    ssize_t offset;
+    size_t size;
+    sp<IMemoryHeap> heap = mem->getMemory(&offset, &size);
+    int heapId = heap->getHeapID();
+    int bufferIndex = offset / size;
+    if (CC_LIKELY(mHidlDevice != nullptr)) {
+        if (size == sizeof(VideoNativeHandleMetadata)) {
+            VideoNativeHandleMetadata* md = (VideoNativeHandleMetadata*) mem->pointer();
+            // Caching the handle here because md->pHandle will be subject to HAL's edit
+            native_handle_t* nh = md->pHandle;
+            hidl_handle frame = nh;
+            mHidlDevice->releaseRecordingFrameHandle(heapId, bufferIndex, frame);
+            native_handle_close(nh);
+            native_handle_delete(nh);
+        } else {
+            mHidlDevice->releaseRecordingFrame(heapId, bufferIndex);
+        }
+    } else if (mDevice && mDevice->ops->release_recording_frame) {
+        void *data = ((uint8_t *)heap->base()) + offset;
+        return mDevice->ops->release_recording_frame(mDevice, data);
+    }
+}
+
+status_t CameraHardwareInterface::autoFocus()
+{
+    ALOGV("%s(%s)", __FUNCTION__, mName.string());
+    if (CC_LIKELY(mHidlDevice != nullptr)) {
+        return CameraProviderManager::mapToStatusT(
+                mHidlDevice->autoFocus());
+    } else if (mDevice && mDevice->ops->auto_focus) {
+        return mDevice->ops->auto_focus(mDevice);
+    }
+    return INVALID_OPERATION;
+}
+
+status_t CameraHardwareInterface::cancelAutoFocus()
+{
+    ALOGV("%s(%s)", __FUNCTION__, mName.string());
+    if (CC_LIKELY(mHidlDevice != nullptr)) {
+        return CameraProviderManager::mapToStatusT(
+                mHidlDevice->cancelAutoFocus());
+    } else if (mDevice && mDevice->ops->cancel_auto_focus) {
+        return mDevice->ops->cancel_auto_focus(mDevice);
+    }
+    return INVALID_OPERATION;
+}
+
+status_t CameraHardwareInterface::takePicture()
+{
+    ALOGV("%s(%s)", __FUNCTION__, mName.string());
+    if (CC_LIKELY(mHidlDevice != nullptr)) {
+        return CameraProviderManager::mapToStatusT(
+                mHidlDevice->takePicture());
+    } else if (mDevice && mDevice->ops->take_picture) {
+        return mDevice->ops->take_picture(mDevice);
+    }
+    return INVALID_OPERATION;
+}
+
+status_t CameraHardwareInterface::cancelPicture()
+{
+    ALOGV("%s(%s)", __FUNCTION__, mName.string());
+    if (CC_LIKELY(mHidlDevice != nullptr)) {
+        return CameraProviderManager::mapToStatusT(
+                mHidlDevice->cancelPicture());
+    } else if (mDevice && mDevice->ops->cancel_picture) {
+        return mDevice->ops->cancel_picture(mDevice);
+    }
+    return INVALID_OPERATION;
+}
+
+status_t CameraHardwareInterface::setParameters(const CameraParameters &params)
+{
+    ALOGV("%s(%s)", __FUNCTION__, mName.string());
+    if (CC_LIKELY(mHidlDevice != nullptr)) {
+        return CameraProviderManager::mapToStatusT(
+                mHidlDevice->setParameters(params.flatten().string()));
+    } else if (mDevice && mDevice->ops->set_parameters) {
+        return mDevice->ops->set_parameters(mDevice, params.flatten().string());
+    }
+    return INVALID_OPERATION;
+}
+
+CameraParameters CameraHardwareInterface::getParameters() const
+{
+    ALOGV("%s(%s)", __FUNCTION__, mName.string());
+    CameraParameters parms;
+    if (CC_LIKELY(mHidlDevice != nullptr)) {
+        hardware::hidl_string outParam;
+        mHidlDevice->getParameters(
+                [&outParam](const auto& outStr) {
+                    outParam = outStr;
+                });
+        String8 tmp(outParam.c_str());
+        parms.unflatten(tmp);
+    } else if (mDevice && mDevice->ops->get_parameters) {
+        char *temp = mDevice->ops->get_parameters(mDevice);
+        String8 str_parms(temp);
+        if (mDevice->ops->put_parameters)
+            mDevice->ops->put_parameters(mDevice, temp);
+        else
+            free(temp);
+        parms.unflatten(str_parms);
+    }
+    return parms;
+}
+
+status_t CameraHardwareInterface::sendCommand(int32_t cmd, int32_t arg1, int32_t arg2)
+{
+    ALOGV("%s(%s)", __FUNCTION__, mName.string());
+    if (CC_LIKELY(mHidlDevice != nullptr)) {
+        return CameraProviderManager::mapToStatusT(
+                mHidlDevice->sendCommand((CommandType) cmd, arg1, arg2));
+    } else if (mDevice && mDevice->ops->send_command) {
+        return mDevice->ops->send_command(mDevice, cmd, arg1, arg2);
+    }
+    return INVALID_OPERATION;
+}
+
+/**
+ * Release the hardware resources owned by this object.  Note that this is
+ * *not* done in the destructor.
+ */
+void CameraHardwareInterface::release() {
+    ALOGV("%s(%s)", __FUNCTION__, mName.string());
+    if (CC_LIKELY(mHidlDevice != nullptr)) {
+        mHidlDevice->close();
+        mHidlDevice.clear();
+    } else if (mDevice && mDevice->ops->release) {
+        mDevice->ops->release(mDevice);
+    }
+}
+
+/**
+ * Dump state of the camera hardware
+ */
+status_t CameraHardwareInterface::dump(int fd, const Vector<String16>& /*args*/) const
+{
+    ALOGV("%s(%s)", __FUNCTION__, mName.string());
+    if (CC_LIKELY(mHidlDevice != nullptr)) {
+        native_handle_t* handle = native_handle_create(1,0);
+        handle->data[0] = fd;
+        Status s = mHidlDevice->dumpState(handle);
+        native_handle_delete(handle);
+        return CameraProviderManager::mapToStatusT(s);
+    } else if (mDevice && mDevice->ops->dump) {
+        return mDevice->ops->dump(mDevice, fd);
+    }
+    return OK; // It's fine if the HAL doesn't implement dump()
+}
+
+/**
+ * Methods for legacy (non-HIDL) path follows
+ */
+void CameraHardwareInterface::sNotifyCb(int32_t msg_type, int32_t ext1,
+                        int32_t ext2, void *user)
+{
+    ALOGV("%s", __FUNCTION__);
+    CameraHardwareInterface *object =
+            static_cast<CameraHardwareInterface *>(user);
+    object->mNotifyCb(msg_type, ext1, ext2, object->mCbUser);
+}
+
+void CameraHardwareInterface::sDataCb(int32_t msg_type,
+                      const camera_memory_t *data, unsigned int index,
+                      camera_frame_metadata_t *metadata,
+                      void *user)
+{
+    ALOGV("%s", __FUNCTION__);
+    CameraHardwareInterface *object =
+            static_cast<CameraHardwareInterface *>(user);
+    sp<CameraHeapMemory> mem(static_cast<CameraHeapMemory *>(data->handle));
+    if (index >= mem->mNumBufs) {
+        ALOGE("%s: invalid buffer index %d, max allowed is %d", __FUNCTION__,
+             index, mem->mNumBufs);
+        return;
+    }
+    object->mDataCb(msg_type, mem->mBuffers[index], metadata, object->mCbUser);
+}
+
+void CameraHardwareInterface::sDataCbTimestamp(nsecs_t timestamp, int32_t msg_type,
+                         const camera_memory_t *data, unsigned index,
+                         void *user)
+{
+    ALOGV("%s", __FUNCTION__);
+    CameraHardwareInterface *object =
+            static_cast<CameraHardwareInterface *>(user);
+    // Start refcounting the heap object from here on.  When the clients
+    // drop all references, it will be destroyed (as well as the enclosed
+    // MemoryHeapBase.
+    sp<CameraHeapMemory> mem(static_cast<CameraHeapMemory *>(data->handle));
+    if (index >= mem->mNumBufs) {
+        ALOGE("%s: invalid buffer index %d, max allowed is %d", __FUNCTION__,
+             index, mem->mNumBufs);
+        return;
+    }
+    object->mDataCbTimestamp(timestamp, msg_type, mem->mBuffers[index], object->mCbUser);
+}
+
+camera_memory_t* CameraHardwareInterface::sGetMemory(
+        int fd, size_t buf_size, uint_t num_bufs,
+        void *user __attribute__((unused)))
+{
+    CameraHeapMemory *mem;
+    if (fd < 0) {
+        mem = new CameraHeapMemory(buf_size, num_bufs);
+    } else {
+        mem = new CameraHeapMemory(fd, buf_size, num_bufs);
+    }
+    mem->incStrong(mem);
+    return &mem->handle;
+}
+
+void CameraHardwareInterface::sPutMemory(camera_memory_t *data)
+{
+    if (!data) {
+        return;
+    }
+
+    CameraHeapMemory *mem = static_cast<CameraHeapMemory *>(data->handle);
+    mem->decStrong(mem);
+}
+
+ANativeWindow* CameraHardwareInterface::sToAnw(void *user)
+{
+    CameraHardwareInterface *object =
+            reinterpret_cast<CameraHardwareInterface *>(user);
+    return object->mPreviewWindow.get();
+}
+#define anw(n) sToAnw(((struct camera_preview_window *)(n))->user)
+#define hwi(n) reinterpret_cast<CameraHardwareInterface *>(\
+    ((struct camera_preview_window *)(n))->user)
+
+int CameraHardwareInterface::sDequeueBuffer(struct preview_stream_ops* w,
+                            buffer_handle_t** buffer, int *stride)
+{
+    int rc;
+    ANativeWindow *a = anw(w);
+    ANativeWindowBuffer* anb;
+    rc = native_window_dequeue_buffer_and_wait(a, &anb);
+    if (rc == OK) {
+        *buffer = &anb->handle;
+        *stride = anb->stride;
+    }
+    return rc;
+}
+
+#ifndef container_of
+#define container_of(ptr, type, member) ({                      \
+    const __typeof__(((type *) 0)->member) *__mptr = (ptr);     \
+    (type *) ((char *) __mptr - (char *)(&((type *)0)->member)); })
+#endif
+
+int CameraHardwareInterface::sLockBuffer(struct preview_stream_ops* w,
+                  buffer_handle_t* /*buffer*/)
+{
+    ANativeWindow *a = anw(w);
+    (void)a;
+    return 0;
+}
+
+int CameraHardwareInterface::sEnqueueBuffer(struct preview_stream_ops* w,
+                  buffer_handle_t* buffer)
+{
+    ANativeWindow *a = anw(w);
+    return a->queueBuffer(a,
+              container_of(buffer, ANativeWindowBuffer, handle), -1);
+}
+
+int CameraHardwareInterface::sCancelBuffer(struct preview_stream_ops* w,
+                  buffer_handle_t* buffer)
+{
+    ANativeWindow *a = anw(w);
+    return a->cancelBuffer(a,
+              container_of(buffer, ANativeWindowBuffer, handle), -1);
+}
+
+int CameraHardwareInterface::sSetBufferCount(struct preview_stream_ops* w, int count)
+{
+    ANativeWindow *a = anw(w);
+
+    if (a != nullptr) {
+        // Workaround for b/27039775
+        // Previously, setting the buffer count would reset the buffer
+        // queue's flag that allows for all buffers to be dequeued on the
+        // producer side, instead of just the producer's declared max count,
+        // if no filled buffers have yet been queued by the producer.  This
+        // reset no longer happens, but some HALs depend on this behavior,
+        // so it needs to be maintained for HAL backwards compatibility.
+        // Simulate the prior behavior by disconnecting/reconnecting to the
+        // window and setting the values again.  This has the drawback of
+        // actually causing memory reallocation, which may not have happened
+        // in the past.
+        CameraHardwareInterface *hw = hwi(w);
+        native_window_api_disconnect(a, NATIVE_WINDOW_API_CAMERA);
+        native_window_api_connect(a, NATIVE_WINDOW_API_CAMERA);
+        if (hw->mPreviewScalingMode != NOT_SET) {
+            native_window_set_scaling_mode(a, hw->mPreviewScalingMode);
+        }
+        if (hw->mPreviewTransform != NOT_SET) {
+            native_window_set_buffers_transform(a, hw->mPreviewTransform);
+        }
+        if (hw->mPreviewWidth != NOT_SET) {
+            native_window_set_buffers_dimensions(a,
+                    hw->mPreviewWidth, hw->mPreviewHeight);
+            native_window_set_buffers_format(a, hw->mPreviewFormat);
+        }
+        if (hw->mPreviewUsage != 0) {
+            native_window_set_usage(a, hw->mPreviewUsage);
+        }
+        if (hw->mPreviewSwapInterval != NOT_SET) {
+            a->setSwapInterval(a, hw->mPreviewSwapInterval);
+        }
+        if (hw->mPreviewCrop.left != NOT_SET) {
+            native_window_set_crop(a, &(hw->mPreviewCrop));
+        }
+    }
+
+    return native_window_set_buffer_count(a, count);
+}
+
+int CameraHardwareInterface::sSetBuffersGeometry(struct preview_stream_ops* w,
+                  int width, int height, int format)
+{
+    int rc;
+    ANativeWindow *a = anw(w);
+    CameraHardwareInterface *hw = hwi(w);
+    hw->mPreviewWidth = width;
+    hw->mPreviewHeight = height;
+    hw->mPreviewFormat = format;
+    rc = native_window_set_buffers_dimensions(a, width, height);
+    if (rc == OK) {
+        rc = native_window_set_buffers_format(a, format);
+    }
+    return rc;
+}
+
+int CameraHardwareInterface::sSetCrop(struct preview_stream_ops *w,
+                  int left, int top, int right, int bottom)
+{
+    ANativeWindow *a = anw(w);
+    CameraHardwareInterface *hw = hwi(w);
+    hw->mPreviewCrop.left = left;
+    hw->mPreviewCrop.top = top;
+    hw->mPreviewCrop.right = right;
+    hw->mPreviewCrop.bottom = bottom;
+    return native_window_set_crop(a, &(hw->mPreviewCrop));
+}
+
+int CameraHardwareInterface::sSetTimestamp(struct preview_stream_ops *w,
+                           int64_t timestamp) {
+    ANativeWindow *a = anw(w);
+    return native_window_set_buffers_timestamp(a, timestamp);
+}
+
+int CameraHardwareInterface::sSetUsage(struct preview_stream_ops* w, int usage)
+{
+    ANativeWindow *a = anw(w);
+    CameraHardwareInterface *hw = hwi(w);
+    hw->mPreviewUsage = usage;
+    return native_window_set_usage(a, usage);
+}
+
+int CameraHardwareInterface::sSetSwapInterval(struct preview_stream_ops *w, int interval)
+{
+    ANativeWindow *a = anw(w);
+    CameraHardwareInterface *hw = hwi(w);
+    hw->mPreviewSwapInterval = interval;
+    return a->setSwapInterval(a, interval);
+}
+
+int CameraHardwareInterface::sGetMinUndequeuedBufferCount(
+                  const struct preview_stream_ops *w,
+                  int *count)
+{
+    ANativeWindow *a = anw(w);
+    return a->query(a, NATIVE_WINDOW_MIN_UNDEQUEUED_BUFFERS, count);
+}
+
+void CameraHardwareInterface::initHalPreviewWindow()
+{
+    mHalPreviewWindow.nw.cancel_buffer = sCancelBuffer;
+    mHalPreviewWindow.nw.lock_buffer = sLockBuffer;
+    mHalPreviewWindow.nw.dequeue_buffer = sDequeueBuffer;
+    mHalPreviewWindow.nw.enqueue_buffer = sEnqueueBuffer;
+    mHalPreviewWindow.nw.set_buffer_count = sSetBufferCount;
+    mHalPreviewWindow.nw.set_buffers_geometry = sSetBuffersGeometry;
+    mHalPreviewWindow.nw.set_crop = sSetCrop;
+    mHalPreviewWindow.nw.set_timestamp = sSetTimestamp;
+    mHalPreviewWindow.nw.set_usage = sSetUsage;
+    mHalPreviewWindow.nw.set_swap_interval = sSetSwapInterval;
+
+    mHalPreviewWindow.nw.get_min_undequeued_buffer_count =
+            sGetMinUndequeuedBufferCount;
+}
+
+}; // namespace android
diff --git a/services/camera/libcameraservice/device1/CameraHardwareInterface.h b/services/camera/libcameraservice/device1/CameraHardwareInterface.h
index 952bae1..88ab2e9 100644
--- a/services/camera/libcameraservice/device1/CameraHardwareInterface.h
+++ b/services/camera/libcameraservice/device1/CameraHardwareInterface.h
@@ -17,6 +17,7 @@
 #ifndef ANDROID_HARDWARE_CAMERA_HARDWARE_INTERFACE_H
 #define ANDROID_HARDWARE_CAMERA_HARDWARE_INTERFACE_H
 
+#include <unordered_map>
 #include <binder/IMemory.h>
 #include <binder/MemoryBase.h>
 #include <binder/MemoryHeapBase.h>
@@ -27,6 +28,9 @@
 #include <system/window.h>
 #include <hardware/camera.h>
 
+#include <common/CameraModule.h>
+#include <common/CameraProviderManager.h>
+
 namespace android {
 
 typedef void (*notify_callback)(int32_t msgType,
@@ -71,10 +75,15 @@
  * provided in a data callback must be copied if it's needed after returning.
  */
 
-class CameraHardwareInterface : public virtual RefBase {
+class CameraHardwareInterface :
+        public virtual RefBase,
+        public virtual hardware::camera::device::V1_0::ICameraDeviceCallback,
+        public virtual hardware::camera::device::V1_0::ICameraDevicePreviewCallback {
+
 public:
     explicit CameraHardwareInterface(const char *name):
             mDevice(nullptr),
+            mHidlDevice(nullptr),
             mName(name),
             mPreviewScalingMode(NOT_SET),
             mPreviewTransform(NOT_SET),
@@ -87,109 +96,23 @@
     {
     }
 
-    ~CameraHardwareInterface()
-    {
-        ALOGI("Destroying camera %s", mName.string());
-        if(mDevice) {
-            int rc = mDevice->common.close(&mDevice->common);
-            if (rc != OK)
-                ALOGE("Could not close camera %s: %d", mName.string(), rc);
-        }
-    }
+    ~CameraHardwareInterface();
 
-    status_t initialize(CameraModule *module)
-    {
-        ALOGI("Opening camera %s", mName.string());
-        camera_info info;
-        status_t res = module->getCameraInfo(atoi(mName.string()), &info);
-        if (res != OK) {
-            return res;
-        }
-
-        int rc = OK;
-        if (module->getModuleApiVersion() >= CAMERA_MODULE_API_VERSION_2_3 &&
-            info.device_version > CAMERA_DEVICE_API_VERSION_1_0) {
-            // Open higher version camera device as HAL1.0 device.
-            rc = module->openLegacy(mName.string(),
-                                     CAMERA_DEVICE_API_VERSION_1_0,
-                                     (hw_device_t **)&mDevice);
-        } else {
-            rc = module->open(mName.string(), (hw_device_t **)&mDevice);
-        }
-        if (rc != OK) {
-            ALOGE("Could not open camera %s: %d", mName.string(), rc);
-            return rc;
-        }
-        initHalPreviewWindow();
-        return rc;
-    }
+    status_t initialize(CameraModule *module);
+    status_t initialize(sp<CameraProviderManager> manager);
 
     /** Set the ANativeWindow to which preview frames are sent */
-    status_t setPreviewWindow(const sp<ANativeWindow>& buf)
-    {
-        ALOGV("%s(%s) buf %p", __FUNCTION__, mName.string(), buf.get());
-        if (mDevice->ops->set_preview_window) {
-            mPreviewWindow = buf;
-            if (buf != nullptr) {
-                if (mPreviewScalingMode != NOT_SET) {
-                    setPreviewScalingMode(mPreviewScalingMode);
-                }
-                if (mPreviewTransform != NOT_SET) {
-                    setPreviewTransform(mPreviewTransform);
-                }
-            }
-            mHalPreviewWindow.user = this;
-            ALOGV("%s &mHalPreviewWindow %p mHalPreviewWindow.user %p", __FUNCTION__,
-                    &mHalPreviewWindow, mHalPreviewWindow.user);
-            return mDevice->ops->set_preview_window(mDevice,
-                    buf.get() ? &mHalPreviewWindow.nw : 0);
-        }
-        return INVALID_OPERATION;
-    }
+    status_t setPreviewWindow(const sp<ANativeWindow>& buf);
 
-    status_t setPreviewScalingMode(int scalingMode)
-    {
-        int rc = OK;
-        mPreviewScalingMode = scalingMode;
-        if (mPreviewWindow != nullptr) {
-            rc = native_window_set_scaling_mode(mPreviewWindow.get(),
-                    scalingMode);
-        }
-        return rc;
-    }
+    status_t setPreviewScalingMode(int scalingMode);
 
-    status_t setPreviewTransform(int transform) {
-        int rc = OK;
-        mPreviewTransform = transform;
-        if (mPreviewWindow != nullptr) {
-            rc = native_window_set_buffers_transform(mPreviewWindow.get(),
-                    mPreviewTransform);
-        }
-        return rc;
-    }
+    status_t setPreviewTransform(int transform);
 
     /** Set the notification and data callbacks */
     void setCallbacks(notify_callback notify_cb,
                       data_callback data_cb,
                       data_callback_timestamp data_cb_timestamp,
-                      void* user)
-    {
-        mNotifyCb = notify_cb;
-        mDataCb = data_cb;
-        mDataCbTimestamp = data_cb_timestamp;
-        mCbUser = user;
-
-        ALOGV("%s(%s)", __FUNCTION__, mName.string());
-
-        if (mDevice->ops->set_callbacks) {
-            mDevice->ops->set_callbacks(mDevice,
-                                   __notify_cb,
-                                   __data_cb,
-                                   __data_cb_timestamp,
-                                   __get_memory,
-                                   this);
-        }
-    }
+                      void* user);
 
     /**
      * The following three functions all take a msgtype,
@@ -200,12 +123,7 @@
     /**
      * Enable a message, or set of messages.
      */
-    void enableMsgType(int32_t msgType)
-    {
-        ALOGV("%s(%s)", __FUNCTION__, mName.string());
-        if (mDevice->ops->enable_msg_type)
-            mDevice->ops->enable_msg_type(mDevice, msgType);
-    }
+    void enableMsgType(int32_t msgType);
 
     /**
      * Disable a message, or a set of messages.
@@ -217,57 +135,29 @@
      * modify/access any video recording frame after calling
      * disableMsgType(CAMERA_MSG_VIDEO_FRAME).
      */
-    void disableMsgType(int32_t msgType)
-    {
-        ALOGV("%s(%s)", __FUNCTION__, mName.string());
-        if (mDevice->ops->disable_msg_type)
-            mDevice->ops->disable_msg_type(mDevice, msgType);
-    }
+    void disableMsgType(int32_t msgType);
 
     /**
      * Query whether a message, or a set of messages, is enabled.
      * Note that this is operates as an AND, if any of the messages
      * queried are off, this will return false.
      */
-    int msgTypeEnabled(int32_t msgType)
-    {
-        ALOGV("%s(%s)", __FUNCTION__, mName.string());
-        if (mDevice->ops->msg_type_enabled)
-            return mDevice->ops->msg_type_enabled(mDevice, msgType);
-        return false;
-    }
+    int msgTypeEnabled(int32_t msgType);
 
     /**
      * Start preview mode.
      */
-    status_t startPreview()
-    {
-        ALOGV("%s(%s)", __FUNCTION__, mName.string());
-        if (mDevice->ops->start_preview)
-            return mDevice->ops->start_preview(mDevice);
-        return INVALID_OPERATION;
-    }
+    status_t startPreview();
 
     /**
      * Stop a previously started preview.
      */
-    void stopPreview()
-    {
-        ALOGV("%s(%s)", __FUNCTION__, mName.string());
-        if (mDevice->ops->stop_preview)
-            mDevice->ops->stop_preview(mDevice);
-    }
+    void stopPreview();
 
     /**
      * Returns true if preview is enabled.
      */
-    int previewEnabled()
-    {
-        ALOGV("%s(%s)", __FUNCTION__, mName.string());
-        if (mDevice->ops->preview_enabled)
-            return mDevice->ops->preview_enabled(mDevice);
-        return false;
-    }
+    int previewEnabled();
 
     /**
      * Request the camera hal to store meta data or real YUV data in
@@ -301,13 +191,7 @@
      * @return OK on success.
      */
 
-    status_t storeMetaDataInBuffers(int enable)
-    {
-        ALOGV("%s(%s)", __FUNCTION__, mName.string());
-        if (mDevice->ops->store_meta_data_in_buffers)
-            return mDevice->ops->store_meta_data_in_buffers(mDevice, enable);
-        return enable ? INVALID_OPERATION: OK;
-    }
+    status_t storeMetaDataInBuffers(int enable);
 
     /**
      * Start record mode. When a record image is available a CAMERA_MSG_VIDEO_FRAME
@@ -318,34 +202,17 @@
      * to manage the life-cycle of the video recording frames, and the client must
      * not modify/access any video recording frames.
      */
-    status_t startRecording()
-    {
-        ALOGV("%s(%s)", __FUNCTION__, mName.string());
-        if (mDevice->ops->start_recording)
-            return mDevice->ops->start_recording(mDevice);
-        return INVALID_OPERATION;
-    }
+    status_t startRecording();
 
     /**
      * Stop a previously started recording.
      */
-    void stopRecording()
-    {
-        ALOGV("%s(%s)", __FUNCTION__, mName.string());
-        if (mDevice->ops->stop_recording)
-            mDevice->ops->stop_recording(mDevice);
-    }
+    void stopRecording();
 
     /**
      * Returns true if recording is enabled.
      */
-    int recordingEnabled()
-    {
-        ALOGV("%s(%s)", __FUNCTION__, mName.string());
-        if (mDevice->ops->recording_enabled)
-            return mDevice->ops->recording_enabled(mDevice);
-        return false;
-    }
+    int recordingEnabled();
 
     /**
      * Release a record frame previously returned by CAMERA_MSG_VIDEO_FRAME.
@@ -357,30 +224,14 @@
      * responsibility of managing the life-cycle of the video recording
      * frames.
      */
-    void releaseRecordingFrame(const sp<IMemory>& mem)
-    {
-        ALOGV("%s(%s)", __FUNCTION__, mName.string());
-        if (mDevice->ops->release_recording_frame) {
-            ssize_t offset;
-            size_t size;
-            sp<IMemoryHeap> heap = mem->getMemory(&offset, &size);
-            void *data = ((uint8_t *)heap->base()) + offset;
-            return mDevice->ops->release_recording_frame(mDevice, data);
-        }
-    }
+    void releaseRecordingFrame(const sp<IMemory>& mem);
 
     /**
      * Start auto focus, the notification callback routine is called
      * with CAMERA_MSG_FOCUS once when focusing is complete. autoFocus()
      * will be called again if another auto focus is needed.
      */
-    status_t autoFocus()
-    {
-        ALOGV("%s(%s)", __FUNCTION__, mName.string());
-        if (mDevice->ops->auto_focus)
-            return mDevice->ops->auto_focus(mDevice);
-        return INVALID_OPERATION;
-    }
+    status_t autoFocus();
 
     /**
      * Cancels auto-focus function. If the auto-focus is still in progress,
@@ -388,151 +239,73 @@
      * or not, this function will return the focus position to the default.
      * If the camera does not support auto-focus, this is a no-op.
      */
-    status_t cancelAutoFocus()
-    {
-        ALOGV("%s(%s)", __FUNCTION__, mName.string());
-        if (mDevice->ops->cancel_auto_focus)
-            return mDevice->ops->cancel_auto_focus(mDevice);
-        return INVALID_OPERATION;
-    }
+    status_t cancelAutoFocus();
 
     /**
      * Take a picture.
      */
-    status_t takePicture()
-    {
-        ALOGV("%s(%s)", __FUNCTION__, mName.string());
-        if (mDevice->ops->take_picture)
-            return mDevice->ops->take_picture(mDevice);
-        return INVALID_OPERATION;
-    }
+    status_t takePicture();
 
     /**
      * Cancel a picture that was started with takePicture.  Calling this
      * method when no picture is being taken is a no-op.
      */
-    status_t cancelPicture()
-    {
-        ALOGV("%s(%s)", __FUNCTION__, mName.string());
-        if (mDevice->ops->cancel_picture)
-            return mDevice->ops->cancel_picture(mDevice);
-        return INVALID_OPERATION;
-    }
+    status_t cancelPicture();
 
     /**
      * Set the camera parameters. This returns BAD_VALUE if any parameter is
      * invalid or not supported. */
-    status_t setParameters(const CameraParameters &params)
-    {
-        ALOGV("%s(%s)", __FUNCTION__, mName.string());
-        if (mDevice->ops->set_parameters)
-            return mDevice->ops->set_parameters(mDevice,
-                                               params.flatten().string());
-        return INVALID_OPERATION;
-    }
+    status_t setParameters(const CameraParameters &params);
 
     /** Return the camera parameters. */
-    CameraParameters getParameters() const
-    {
-        ALOGV("%s(%s)", __FUNCTION__, mName.string());
-        CameraParameters parms;
-        if (mDevice->ops->get_parameters) {
-            char *temp = mDevice->ops->get_parameters(mDevice);
-            String8 str_parms(temp);
-            if (mDevice->ops->put_parameters)
-                mDevice->ops->put_parameters(mDevice, temp);
-            else
-                free(temp);
-            parms.unflatten(str_parms);
-        }
-        return parms;
-    }
+    CameraParameters getParameters() const;
 
     /**
      * Send command to camera driver.
      */
-    status_t sendCommand(int32_t cmd, int32_t arg1, int32_t arg2)
-    {
-        ALOGV("%s(%s)", __FUNCTION__, mName.string());
-        if (mDevice->ops->send_command)
-            return mDevice->ops->send_command(mDevice, cmd, arg1, arg2);
-        return INVALID_OPERATION;
-    }
+    status_t sendCommand(int32_t cmd, int32_t arg1, int32_t arg2);
 
     /**
      * Release the hardware resources owned by this object.  Note that this is
      * *not* done in the destructor.
      */
-    void release() {
-        ALOGV("%s(%s)", __FUNCTION__, mName.string());
-        if (mDevice->ops->release)
-            mDevice->ops->release(mDevice);
-    }
+    void release();
 
     /**
      * Dump state of the camera hardware
      */
-    status_t dump(int fd, const Vector<String16>& /*args*/) const
-    {
-        ALOGV("%s(%s)", __FUNCTION__, mName.string());
-        if (mDevice->ops->dump)
-            return mDevice->ops->dump(mDevice, fd);
-        return OK; // It's fine if the HAL doesn't implement dump()
-    }
+    status_t dump(int fd, const Vector<String16>& /*args*/) const;
 
 private:
     camera_device_t *mDevice;
+    sp<hardware::camera::device::V1_0::ICameraDevice> mHidlDevice;
     String8 mName;
 
-    static void __notify_cb(int32_t msg_type, int32_t ext1,
-                            int32_t ext2, void *user)
-    {
-        ALOGV("%s", __FUNCTION__);
-        CameraHardwareInterface *__this =
-                static_cast<CameraHardwareInterface *>(user);
-        __this->mNotifyCb(msg_type, ext1, ext2, __this->mCbUser);
-    }
+    static void sNotifyCb(int32_t msg_type, int32_t ext1,
+                            int32_t ext2, void *user);
 
-    static void __data_cb(int32_t msg_type,
+    static void sDataCb(int32_t msg_type,
                           const camera_memory_t *data, unsigned int index,
                           camera_frame_metadata_t *metadata,
-                          void *user)
-    {
-        ALOGV("%s", __FUNCTION__);
-        CameraHardwareInterface *__this =
-                static_cast<CameraHardwareInterface *>(user);
-        sp<CameraHeapMemory> mem(static_cast<CameraHeapMemory *>(data->handle));
-        if (index >= mem->mNumBufs) {
-            ALOGE("%s: invalid buffer index %d, max allowed is %d", __FUNCTION__,
-                 index, mem->mNumBufs);
-            return;
-        }
-        __this->mDataCb(msg_type, mem->mBuffers[index], metadata, __this->mCbUser);
-    }
+                          void *user);
 
-    static void __data_cb_timestamp(nsecs_t timestamp, int32_t msg_type,
+    static void sDataCbTimestamp(nsecs_t timestamp, int32_t msg_type,
                              const camera_memory_t *data, unsigned index,
-                             void *user)
-    {
-        ALOGV("%s", __FUNCTION__);
-        CameraHardwareInterface *__this =
-                static_cast<CameraHardwareInterface *>(user);
-        // Start refcounting the heap object from here on.  When the clients
-        // drop all references, it will be destroyed (as well as the enclosed
-        // MemoryHeapBase.
-        sp<CameraHeapMemory> mem(static_cast<CameraHeapMemory *>(data->handle));
-        if (index >= mem->mNumBufs) {
-            ALOGE("%s: invalid buffer index %d, max allowed is %d", __FUNCTION__,
-                 index, mem->mNumBufs);
-            return;
-        }
-        __this->mDataCbTimestamp(timestamp, msg_type, mem->mBuffers[index], __this->mCbUser);
-    }
+                             void *user);
+
+    // TODO: b/35625849
+    // Meta data buffer layout for passing a native_handle to codec
+    // matching frameworks/native/include/media/hardware/MetadataBufferType.h and
+    //          frameworks/native/include/media/hardware/HardwareAPI.h
+    struct VideoNativeHandleMetadata {
+        static const uint32_t kMetadataBufferTypeNativeHandleSource = 3;
+        uint32_t eType; // must be kMetadataBufferTypeNativeHandleSource
+        native_handle_t* pHandle;
+    };
 
     // This is a utility class that combines a MemoryHeapBase and a MemoryBase
     // in one.  Since we tend to use them in a one-to-one relationship, this is
     // handy.
-
     class CameraHeapMemory : public RefBase {
     public:
         CameraHeapMemory(int fd, size_t buf_size, uint_t num_buffers = 1) :
@@ -563,7 +336,7 @@
                                              i * mBufSize,
                                              mBufSize);
 
-            handle.release = __put_memory;
+            handle.release = sPutMemory;
         }
 
         virtual ~CameraHeapMemory()
@@ -579,199 +352,94 @@
         camera_memory_t handle;
     };
 
-    static camera_memory_t* __get_memory(int fd, size_t buf_size, uint_t num_bufs,
-                                         void *user __attribute__((unused)))
-    {
-        CameraHeapMemory *mem;
-        if (fd < 0)
-            mem = new CameraHeapMemory(buf_size, num_bufs);
-        else
-            mem = new CameraHeapMemory(fd, buf_size, num_bufs);
-        mem->incStrong(mem);
-        return &mem->handle;
-    }
+    static camera_memory_t* sGetMemory(int fd, size_t buf_size, uint_t num_bufs,
+                                         void *user __attribute__((unused)));
 
-    static void __put_memory(camera_memory_t *data)
-    {
-        if (!data)
-            return;
+    static void sPutMemory(camera_memory_t *data);
 
-        CameraHeapMemory *mem = static_cast<CameraHeapMemory *>(data->handle);
-        mem->decStrong(mem);
-    }
+    static ANativeWindow *sToAnw(void *user);
 
-    static ANativeWindow *__to_anw(void *user)
-    {
-        CameraHardwareInterface *__this =
-                reinterpret_cast<CameraHardwareInterface *>(user);
-        return __this->mPreviewWindow.get();
-    }
-#define anw(n) __to_anw(((struct camera_preview_window *)(n))->user)
-#define hwi(n) reinterpret_cast<CameraHardwareInterface *>(\
-        ((struct camera_preview_window *)(n))->user)
+    static int sDequeueBuffer(struct preview_stream_ops* w,
+                                buffer_handle_t** buffer, int *stride);
 
-    static int __dequeue_buffer(struct preview_stream_ops* w,
-                                buffer_handle_t** buffer, int *stride)
-    {
-        int rc;
-        ANativeWindow *a = anw(w);
-        ANativeWindowBuffer* anb;
-        rc = native_window_dequeue_buffer_and_wait(a, &anb);
-        if (!rc) {
-            *buffer = &anb->handle;
-            *stride = anb->stride;
-        }
-        return rc;
-    }
+    static int sLockBuffer(struct preview_stream_ops* w,
+                      buffer_handle_t* /*buffer*/);
 
-#ifndef container_of
-#define container_of(ptr, type, member) ({                      \
-        const __typeof__(((type *) 0)->member) *__mptr = (ptr);     \
-        (type *) ((char *) __mptr - (char *)(&((type *)0)->member)); })
-#endif
+    static int sEnqueueBuffer(struct preview_stream_ops* w,
+                      buffer_handle_t* buffer);
 
-    static int __lock_buffer(struct preview_stream_ops* w,
-                      buffer_handle_t* /*buffer*/)
-    {
-        ANativeWindow *a = anw(w);
-        (void)a;
-        return 0;
-    }
+    static int sCancelBuffer(struct preview_stream_ops* w,
+                      buffer_handle_t* buffer);
 
-    static int __enqueue_buffer(struct preview_stream_ops* w,
-                      buffer_handle_t* buffer)
-    {
-        ANativeWindow *a = anw(w);
-        return a->queueBuffer(a,
-                  container_of(buffer, ANativeWindowBuffer, handle), -1);
-    }
+    static int sSetBufferCount(struct preview_stream_ops* w, int count);
 
-    static int __cancel_buffer(struct preview_stream_ops* w,
-                      buffer_handle_t* buffer)
-    {
-        ANativeWindow *a = anw(w);
-        return a->cancelBuffer(a,
-                  container_of(buffer, ANativeWindowBuffer, handle), -1);
-    }
+    static int sSetBuffersGeometry(struct preview_stream_ops* w,
+                      int width, int height, int format);
 
-    static int __set_buffer_count(struct preview_stream_ops* w, int count)
-    {
-        ANativeWindow *a = anw(w);
+    static int sSetCrop(struct preview_stream_ops *w,
+                      int left, int top, int right, int bottom);
 
-        if (a != nullptr) {
-            // Workaround for b/27039775
-            // Previously, setting the buffer count would reset the buffer
-            // queue's flag that allows for all buffers to be dequeued on the
-            // producer side, instead of just the producer's declared max count,
-            // if no filled buffers have yet been queued by the producer.  This
-            // reset no longer happens, but some HALs depend on this behavior,
-            // so it needs to be maintained for HAL backwards compatibility.
-            // Simulate the prior behavior by disconnecting/reconnecting to the
-            // window and setting the values again.  This has the drawback of
-            // actually causing memory reallocation, which may not have happened
-            // in the past.
-            CameraHardwareInterface *hw = hwi(w);
-            native_window_api_disconnect(a, NATIVE_WINDOW_API_CAMERA);
-            native_window_api_connect(a, NATIVE_WINDOW_API_CAMERA);
-            if (hw->mPreviewScalingMode != NOT_SET) {
-                native_window_set_scaling_mode(a, hw->mPreviewScalingMode);
-            }
-            if (hw->mPreviewTransform != NOT_SET) {
-                native_window_set_buffers_transform(a, hw->mPreviewTransform);
-            }
-            if (hw->mPreviewWidth != NOT_SET) {
-                native_window_set_buffers_dimensions(a,
-                        hw->mPreviewWidth, hw->mPreviewHeight);
-                native_window_set_buffers_format(a, hw->mPreviewFormat);
-            }
-            if (hw->mPreviewUsage != 0) {
-                native_window_set_usage(a, hw->mPreviewUsage);
-            }
-            if (hw->mPreviewSwapInterval != NOT_SET) {
-                a->setSwapInterval(a, hw->mPreviewSwapInterval);
-            }
-            if (hw->mPreviewCrop.left != NOT_SET) {
-                native_window_set_crop(a, &(hw->mPreviewCrop));
-            }
-        }
+    static int sSetTimestamp(struct preview_stream_ops *w,
+                               int64_t timestamp);
 
-        return native_window_set_buffer_count(a, count);
-    }
+    static int sSetUsage(struct preview_stream_ops* w, int usage);
 
-    static int __set_buffers_geometry(struct preview_stream_ops* w,
-                      int width, int height, int format)
-    {
-        int rc;
-        ANativeWindow *a = anw(w);
-        CameraHardwareInterface *hw = hwi(w);
-        hw->mPreviewWidth = width;
-        hw->mPreviewHeight = height;
-        hw->mPreviewFormat = format;
-        rc = native_window_set_buffers_dimensions(a, width, height);
-        if (!rc) {
-            rc = native_window_set_buffers_format(a, format);
-        }
-        return rc;
-    }
+    static int sSetSwapInterval(struct preview_stream_ops *w, int interval);
 
-    static int __set_crop(struct preview_stream_ops *w,
-                      int left, int top, int right, int bottom)
-    {
-        ANativeWindow *a = anw(w);
-        CameraHardwareInterface *hw = hwi(w);
-        hw->mPreviewCrop.left = left;
-        hw->mPreviewCrop.top = top;
-        hw->mPreviewCrop.right = right;
-        hw->mPreviewCrop.bottom = bottom;
-        return native_window_set_crop(a, &(hw->mPreviewCrop));
-    }
-
-    static int __set_timestamp(struct preview_stream_ops *w,
-                               int64_t timestamp) {
-        ANativeWindow *a = anw(w);
-        return native_window_set_buffers_timestamp(a, timestamp);
-    }
-
-    static int __set_usage(struct preview_stream_ops* w, int usage)
-    {
-        ANativeWindow *a = anw(w);
-        CameraHardwareInterface *hw = hwi(w);
-        hw->mPreviewUsage = usage;
-        return native_window_set_usage(a, usage);
-    }
-
-    static int __set_swap_interval(struct preview_stream_ops *w, int interval)
-    {
-        ANativeWindow *a = anw(w);
-        CameraHardwareInterface *hw = hwi(w);
-        hw->mPreviewSwapInterval = interval;
-        return a->setSwapInterval(a, interval);
-    }
-
-    static int __get_min_undequeued_buffer_count(
+    static int sGetMinUndequeuedBufferCount(
                       const struct preview_stream_ops *w,
-                      int *count)
-    {
-        ANativeWindow *a = anw(w);
-        return a->query(a, NATIVE_WINDOW_MIN_UNDEQUEUED_BUFFERS, count);
-    }
+                      int *count);
 
-    void initHalPreviewWindow()
-    {
-        mHalPreviewWindow.nw.cancel_buffer = __cancel_buffer;
-        mHalPreviewWindow.nw.lock_buffer = __lock_buffer;
-        mHalPreviewWindow.nw.dequeue_buffer = __dequeue_buffer;
-        mHalPreviewWindow.nw.enqueue_buffer = __enqueue_buffer;
-        mHalPreviewWindow.nw.set_buffer_count = __set_buffer_count;
-        mHalPreviewWindow.nw.set_buffers_geometry = __set_buffers_geometry;
-        mHalPreviewWindow.nw.set_crop = __set_crop;
-        mHalPreviewWindow.nw.set_timestamp = __set_timestamp;
-        mHalPreviewWindow.nw.set_usage = __set_usage;
-        mHalPreviewWindow.nw.set_swap_interval = __set_swap_interval;
+    void initHalPreviewWindow();
 
-        mHalPreviewWindow.nw.get_min_undequeued_buffer_count =
-                __get_min_undequeued_buffer_count;
-    }
+    std::pair<bool, uint64_t> getBufferId(ANativeWindowBuffer* anb);
+    void cleanupCirculatingBuffers();
+
+    /**
+     * Implementation of android::hardware::camera::device::V1_0::ICameraDeviceCallback
+     */
+    hardware::Return<void> notifyCallback(
+            hardware::camera::device::V1_0::NotifyCallbackMsg msgType,
+            int32_t ext1, int32_t ext2) override;
+    hardware::Return<uint32_t> registerMemory(
+            const hardware::hidl_handle& descriptor,
+            uint32_t bufferSize, uint32_t bufferCount) override;
+    hardware::Return<void> unregisterMemory(uint32_t memId) override;
+    hardware::Return<void> dataCallback(
+            hardware::camera::device::V1_0::DataCallbackMsg msgType,
+            uint32_t data, uint32_t bufferIndex,
+            const hardware::camera::device::V1_0::CameraFrameMetadata& metadata) override;
+    hardware::Return<void> dataCallbackTimestamp(
+            hardware::camera::device::V1_0::DataCallbackMsg msgType,
+            uint32_t data, uint32_t bufferIndex, int64_t timestamp) override;
+    hardware::Return<void> handleCallbackTimestamp(
+            hardware::camera::device::V1_0::DataCallbackMsg msgType,
+            const hardware::hidl_handle& frameData, uint32_t data,
+            uint32_t bufferIndex, int64_t timestamp) override;
+
+    /**
+     * Implementation of android::hardware::camera::device::V1_0::ICameraDevicePreviewCallback
+     */
+    hardware::Return<void> dequeueBuffer(dequeueBuffer_cb _hidl_cb) override;
+    hardware::Return<hardware::camera::common::V1_0::Status>
+            enqueueBuffer(uint64_t bufferId) override;
+    hardware::Return<hardware::camera::common::V1_0::Status>
+            cancelBuffer(uint64_t bufferId) override;
+    hardware::Return<hardware::camera::common::V1_0::Status>
+            setBufferCount(uint32_t count) override;
+    hardware::Return<hardware::camera::common::V1_0::Status>
+            setBuffersGeometry(uint32_t w, uint32_t h,
+                    hardware::graphics::common::V1_0::PixelFormat format) override;
+    hardware::Return<hardware::camera::common::V1_0::Status>
+            setCrop(int32_t left, int32_t top, int32_t right, int32_t bottom) override;
+    hardware::Return<hardware::camera::common::V1_0::Status>
+            setUsage(hardware::graphics::allocator::V2_0::ProducerUsage usage) override;
+    hardware::Return<hardware::camera::common::V1_0::Status>
+            setSwapInterval(int32_t interval) override;
+    hardware::Return<void> getMinUndequeuedBufferCount(
+        getMinUndequeuedBufferCount_cb _hidl_cb) override;
+    hardware::Return<hardware::camera::common::V1_0::Status>
+            setTimestamp(int64_t timestamp) override;
 
     sp<ANativeWindow>        mPreviewWindow;
 
@@ -797,6 +465,48 @@
     int mPreviewUsage;
     int mPreviewSwapInterval;
     android_native_rect_t mPreviewCrop;
+
+    struct BufferHasher {
+        size_t operator()(const buffer_handle_t& buf) const {
+            if (buf == nullptr)
+                return 0;
+
+            size_t result = 1;
+            result = 31 * result + buf->numFds;
+            result = 31 * result + buf->numInts;
+            int length = buf->numFds + buf->numInts;
+            for (int i = 0; i < length; i++) {
+                result = 31 * result + buf->data[i];
+            }
+            return result;
+        }
+    };
+
+    struct BufferComparator {
+        bool operator()(const buffer_handle_t& buf1, const buffer_handle_t& buf2) const {
+            if (buf1->numFds == buf2->numFds && buf1->numInts == buf2->numInts) {
+                int length = buf1->numFds + buf1->numInts;
+                for (int i = 0; i < length; i++) {
+                    if (buf1->data[i] != buf2->data[i]) {
+                        return false;
+                    }
+                }
+                return true;
+            }
+            return false;
+        }
+    };
+
+    std::mutex mBufferIdMapLock; // protecting mBufferIdMap and mNextBufferId
+    typedef std::unordered_map<const buffer_handle_t, uint64_t,
+            BufferHasher, BufferComparator> BufferIdMap;
+    // stream ID -> per stream buffer ID map
+    BufferIdMap mBufferIdMap;
+    std::unordered_map<uint64_t, ANativeWindowBuffer*> mReversedBufMap;
+    uint64_t mNextBufferId = 1;
+    static const uint64_t BUFFER_ID_NO_BUFFER = 0;
+
+    std::unordered_map<int, camera_memory_t*> mHidlMemPoolMap;
 };
 
 };  // namespace android
diff --git a/services/camera/libcameraservice/device3/Camera3BufferManager.cpp b/services/camera/libcameraservice/device3/Camera3BufferManager.cpp
index 1f01144..d93b331 100644
--- a/services/camera/libcameraservice/device3/Camera3BufferManager.cpp
+++ b/services/camera/libcameraservice/device3/Camera3BufferManager.cpp
@@ -29,15 +29,7 @@
 
 namespace camera3 {
 
-Camera3BufferManager::Camera3BufferManager(const sp<IGraphicBufferAlloc>& allocator) :
-        mAllocator(allocator) {
-    if (allocator == NULL) {
-        sp<ISurfaceComposer> composer(ComposerService::getComposerService());
-        mAllocator = composer->createGraphicBufferAlloc();
-        if (mAllocator == NULL) {
-            ALOGE("createGraphicBufferAlloc failed");
-        }
-    }
+Camera3BufferManager::Camera3BufferManager() {
 }
 
 Camera3BufferManager::~Camera3BufferManager() {
@@ -78,10 +70,6 @@
     }
 
     Mutex::Autolock l(mLock);
-    if (mAllocator == NULL) {
-        ALOGE("%s: allocator is NULL, buffer manager is bad state.", __FUNCTION__);
-        return INVALID_OPERATION;
-    }
 
     // Check if this stream was registered with different stream set ID, if so, error out.
     for (size_t i = 0; i < mStreamSetMap.size(); i++) {
@@ -131,10 +119,6 @@
     Mutex::Autolock l(mLock);
     ALOGV("%s: unregister stream %d with stream set %d", __FUNCTION__,
             streamId, streamSetId);
-    if (mAllocator == NULL) {
-        ALOGE("%s: allocator is NULL, buffer manager is bad state.", __FUNCTION__);
-        return INVALID_OPERATION;
-    }
 
     if (!checkIfStreamRegisteredLocked(streamId, streamSetId)){
         ALOGE("%s: stream %d with set id %d wasn't properly registered to this buffer manager!",
@@ -181,10 +165,6 @@
     Mutex::Autolock l(mLock);
     ALOGV("%s: get buffer for stream %d with stream set %d", __FUNCTION__,
             streamId, streamSetId);
-    if (mAllocator == NULL) {
-        ALOGE("%s: allocator is NULL, buffer manager is bad state.", __FUNCTION__);
-        return INVALID_OPERATION;
-    }
 
     if (!checkIfStreamRegisteredLocked(streamId, streamSetId)) {
         ALOGE("%s: stream %d is not registered with stream set %d yet!!!",
@@ -218,14 +198,18 @@
         // Allocate one if there is no free buffer available.
         if (buffer.graphicBuffer == nullptr) {
             const StreamInfo& info = streamSet.streamInfoMap.valueFor(streamId);
-            status_t res = OK;
             buffer.fenceFd = -1;
-            buffer.graphicBuffer = mAllocator->createGraphicBuffer(
-                    info.width, info.height, info.format, info.combinedUsage, &res);
+
+            buffer.graphicBuffer = new GraphicBuffer(
+                    info.width, info.height, PixelFormat(info.format), info.combinedUsage,
+                    std::string("Camera3BufferManager pid [") +
+                            std::to_string(getpid()) + "]");
+            status_t res = buffer.graphicBuffer->initCheck();
+
             ALOGV("%s: allocating a new graphic buffer (%dx%d, format 0x%x) %p with handle %p",
                     __FUNCTION__, info.width, info.height, info.format,
                     buffer.graphicBuffer.get(), buffer.graphicBuffer->handle);
-            if (res != OK) {
+            if (res < 0) {
                 ALOGE("%s: graphic buffer allocation failed: (error %d %s) ",
                         __FUNCTION__, res, strerror(-res));
                 return res;
@@ -329,10 +313,6 @@
     Mutex::Autolock l(mLock);
 
     ALOGV("Stream %d set %d: Buffer released", streamId, streamSetId);
-    if (mAllocator == NULL) {
-        ALOGE("%s: allocator is NULL, buffer manager is bad state.", __FUNCTION__);
-        return INVALID_OPERATION;
-    }
 
     if (!checkIfStreamRegisteredLocked(streamId, streamSetId)){
         ALOGV("%s: signaling buffer release for an already unregistered stream "
@@ -361,10 +341,6 @@
     Mutex::Autolock l(mLock);
     ALOGV_IF(buffer != 0, "%s: return buffer (%p) with handle (%p) for stream %d and stream set %d",
             __FUNCTION__, buffer.get(), buffer->handle, streamId, streamSetId);
-    if (mAllocator == NULL) {
-        ALOGE("%s: allocator is NULL, buffer manager is bad state.", __FUNCTION__);
-        return INVALID_OPERATION;
-    }
 
     if (!checkIfStreamRegisteredLocked(streamId, streamSetId)){
         ALOGV("%s: returning buffer for an already unregistered stream (stream %d with set id %d),"
diff --git a/services/camera/libcameraservice/device3/Camera3BufferManager.h b/services/camera/libcameraservice/device3/Camera3BufferManager.h
index b5b86a3..d1d7a6f 100644
--- a/services/camera/libcameraservice/device3/Camera3BufferManager.h
+++ b/services/camera/libcameraservice/device3/Camera3BufferManager.h
@@ -44,7 +44,7 @@
  */
 class Camera3BufferManager: public virtual RefBase {
 public:
-    explicit Camera3BufferManager(const sp<IGraphicBufferAlloc>& allocator = NULL);
+    explicit Camera3BufferManager();
 
     virtual ~Camera3BufferManager();
 
@@ -186,12 +186,6 @@
 
     static const size_t kMaxBufferCount = BufferQueueDefs::NUM_BUFFER_SLOTS;
 
-    /**
-     * mAllocator is the connection to SurfaceFlinger that is used to allocate new GraphicBuffer
-     * objects.
-     */
-    sp<IGraphicBufferAlloc> mAllocator;
-
     struct GraphicBufferEntry {
         sp<GraphicBuffer> graphicBuffer;
         int fenceFd;
diff --git a/services/camera/libcameraservice/device3/Camera3Device.cpp b/services/camera/libcameraservice/device3/Camera3Device.cpp
index 495de44..60c716f 100644
--- a/services/camera/libcameraservice/device3/Camera3Device.cpp
+++ b/services/camera/libcameraservice/device3/Camera3Device.cpp
@@ -26,7 +26,7 @@
 #endif
 
 // Convenience macro for transient errors
-#define CLOGE(fmt, ...) ALOGE("Camera %d: %s: " fmt, mId, __FUNCTION__, \
+#define CLOGE(fmt, ...) ALOGE("Camera %s: %s: " fmt, mId.string(), __FUNCTION__, \
             ##__VA_ARGS__)
 
 // Convenience macros for transitioning to the error state
@@ -51,18 +51,20 @@
 #include "device3/Camera3Device.h"
 #include "device3/Camera3OutputStream.h"
 #include "device3/Camera3InputStream.h"
-#include "device3/Camera3ZslStream.h"
 #include "device3/Camera3DummyStream.h"
+#include "device3/Camera3SharedOutputStream.h"
 #include "CameraService.h"
 
 using namespace android::camera3;
+using namespace android::hardware::camera;
+using namespace android::hardware::camera::device::V3_2;
 
 namespace android {
 
-Camera3Device::Camera3Device(int id):
+Camera3Device::Camera3Device(const String8 &id):
         mId(id),
+        mOperatingMode(NO_MODE),
         mIsConstrainedHighSpeedConfiguration(false),
-        mHal3Device(NULL),
         mStatus(STATUS_UNINITIALIZED),
         mStatusWaiters(0),
         mUsePartialResult(false),
@@ -77,17 +79,17 @@
     ATRACE_CALL();
     camera3_callback_ops::notify = &sNotify;
     camera3_callback_ops::process_capture_result = &sProcessCaptureResult;
-    ALOGV("%s: Created device for camera %d", __FUNCTION__, id);
+    ALOGV("%s: Created device for camera %s", __FUNCTION__, mId.string());
 }
 
 Camera3Device::~Camera3Device()
 {
     ATRACE_CALL();
-    ALOGV("%s: Tearing down for camera id %d", __FUNCTION__, mId);
+    ALOGV("%s: Tearing down for camera id %s", __FUNCTION__, mId.string());
     disconnect();
 }
 
-int Camera3Device::getId() const {
+const String8& Camera3Device::getId() const {
     return mId;
 }
 
@@ -101,7 +103,7 @@
     Mutex::Autolock il(mInterfaceLock);
     Mutex::Autolock l(mLock);
 
-    ALOGV("%s: Initializing device for camera %d", __FUNCTION__, mId);
+    ALOGV("%s: Initializing device for camera %s", __FUNCTION__, mId.string());
     if (mStatus != STATUS_UNINITIALIZED) {
         CLOGE("Already initialized!");
         return INVALID_OPERATION;
@@ -110,12 +112,11 @@
     /** Open HAL device */
 
     status_t res;
-    String8 deviceName = String8::format("%d", mId);
 
     camera3_device_t *device;
 
-    ATRACE_BEGIN("camera3->open");
-    res = module->open(deviceName.string(),
+    ATRACE_BEGIN("CameraHal::open");
+    res = module->open(mId.string(),
             reinterpret_cast<hw_device_t**>(&device));
     ATRACE_END();
 
@@ -125,17 +126,17 @@
     }
 
     /** Cross-check device version */
-    if (device->common.version < CAMERA_DEVICE_API_VERSION_3_0) {
+    if (device->common.version < CAMERA_DEVICE_API_VERSION_3_2) {
         SET_ERR_L("Could not open camera: "
                 "Camera device should be at least %x, reports %x instead",
-                CAMERA_DEVICE_API_VERSION_3_0,
+                CAMERA_DEVICE_API_VERSION_3_2,
                 device->common.version);
         device->common.close(&device->common);
         return BAD_VALUE;
     }
 
     camera_info info;
-    res = module->getCameraInfo(mId, &info);
+    res = module->getCameraInfo(atoi(mId), &info);
     if (res != OK) return res;
 
     if (info.device_version != device->common.version) {
@@ -148,7 +149,7 @@
 
     /** Initialize device with callback functions */
 
-    ATRACE_BEGIN("camera3->initialize");
+    ATRACE_BEGIN("CameraHal::initialize");
     res = device->ops->initialize(device, this);
     ATRACE_END();
 
@@ -156,16 +157,64 @@
         SET_ERR_L("Unable to initialize HAL device: %s (%d)",
                 strerror(-res), res);
         device->common.close(&device->common);
-        return BAD_VALUE;
+        return res;
     }
 
+    /** Everything is good to go */
+
+    mDeviceVersion = device->common.version;
+    mDeviceInfo = info.static_camera_characteristics;
+    mInterface = std::make_unique<HalInterface>(device);
+
+    return initializeCommonLocked();
+}
+
+status_t Camera3Device::initialize(sp<CameraProviderManager> manager) {
+    ATRACE_CALL();
+    Mutex::Autolock il(mInterfaceLock);
+    Mutex::Autolock l(mLock);
+
+    ALOGV("%s: Initializing HIDL device for camera %s", __FUNCTION__, mId.string());
+    if (mStatus != STATUS_UNINITIALIZED) {
+        CLOGE("Already initialized!");
+        return INVALID_OPERATION;
+    }
+    if (manager == nullptr) return INVALID_OPERATION;
+
+    sp<ICameraDeviceSession> session;
+    ATRACE_BEGIN("CameraHal::openSession");
+    status_t res = manager->openSession(mId.string(), this,
+            /*out*/ &session);
+    ATRACE_END();
+    if (res != OK) {
+        SET_ERR_L("Could not open camera session: %s (%d)", strerror(-res), res);
+        return res;
+    }
+
+    res = manager->getCameraCharacteristics(mId.string(), &mDeviceInfo);
+    if (res != OK) {
+        SET_ERR_L("Could not retrive camera characteristics: %s (%d)", strerror(-res), res);
+        session->close();
+        return res;
+    }
+
+    // TODO: camera service will absorb 3_2/3_3/3_4 differences in the future
+    //       for now use 3_4 to keep legacy devices working
+    mDeviceVersion = CAMERA_DEVICE_API_VERSION_3_4;
+    mInterface = std::make_unique<HalInterface>(session);
+
+    return initializeCommonLocked();
+}
+
+status_t Camera3Device::initializeCommonLocked() {
+
     /** Start up status tracker thread */
     mStatusTracker = new StatusTracker(this);
-    res = mStatusTracker->run(String8::format("C3Dev-%d-Status", mId).string());
+    status_t res = mStatusTracker->run(String8::format("C3Dev-%s-Status", mId.string()).string());
     if (res != OK) {
         SET_ERR_L("Unable to start status tracking thread: %s (%d)",
                 strerror(-res), res);
-        device->common.close(&device->common);
+        mInterface->close();
         mStatusTracker.clear();
         return res;
     }
@@ -177,38 +226,31 @@
     mBufferManager = new Camera3BufferManager();
 
     bool aeLockAvailable = false;
-    camera_metadata_ro_entry aeLockAvailableEntry;
-    res = find_camera_metadata_ro_entry(info.static_camera_characteristics,
-            ANDROID_CONTROL_AE_LOCK_AVAILABLE, &aeLockAvailableEntry);
-    if (res == OK && aeLockAvailableEntry.count > 0) {
+    camera_metadata_entry aeLockAvailableEntry = mDeviceInfo.find(
+            ANDROID_CONTROL_AE_LOCK_AVAILABLE);
+    if (aeLockAvailableEntry.count > 0) {
         aeLockAvailable = (aeLockAvailableEntry.data.u8[0] ==
                 ANDROID_CONTROL_AE_LOCK_AVAILABLE_TRUE);
     }
 
     /** Start up request queue thread */
-    mRequestThread = new RequestThread(this, mStatusTracker, device, aeLockAvailable);
-    res = mRequestThread->run(String8::format("C3Dev-%d-ReqQueue", mId).string());
+    mRequestThread = new RequestThread(this, mStatusTracker, mInterface.get(), mDeviceVersion,
+            aeLockAvailable);
+    res = mRequestThread->run(String8::format("C3Dev-%s-ReqQueue", mId.string()).string());
     if (res != OK) {
         SET_ERR_L("Unable to start request queue thread: %s (%d)",
                 strerror(-res), res);
-        device->common.close(&device->common);
+        mInterface->close();
         mRequestThread.clear();
         return res;
     }
 
     mPreparerThread = new PreparerThread();
 
-    /** Everything is good to go */
-
-    mDeviceVersion = device->common.version;
-    mDeviceInfo = info.static_camera_characteristics;
-    mHal3Device = device;
-
     // Determine whether we need to derive sensitivity boost values for older devices.
     // If post-RAW sensitivity boost range is listed, so should post-raw sensitivity control
     // be listed (as the default value 100)
-    if (mDeviceVersion < CAMERA_DEVICE_API_VERSION_3_4 &&
-            mDeviceInfo.exists(ANDROID_CONTROL_POST_RAW_SENSITIVITY_BOOST_RANGE)) {
+    if (mDeviceInfo.exists(ANDROID_CONTROL_POST_RAW_SENSITIVITY_BOOST_RANGE)) {
         mDerivePostRawSensKey = true;
     }
 
@@ -312,7 +354,7 @@
         mStatusTracker->join();
     }
 
-    camera3_device_t *hal3Device;
+    HalInterface* interface;
     {
         Mutex::Autolock l(mLock);
 
@@ -320,20 +362,16 @@
         mStatusTracker.clear();
         mBufferManager.clear();
 
-        hal3Device = mHal3Device;
+        interface = mInterface.get();
     }
 
     // Call close without internal mutex held, as the HAL close may need to
     // wait on assorted callbacks,etc, to complete before it can return.
-    if (hal3Device != NULL) {
-        ATRACE_BEGIN("camera3->close");
-        hal3Device->common.close(&hal3Device->common);
-        ATRACE_END();
-    }
+    interface->close();
 
     {
         Mutex::Autolock l(mLock);
-        mHal3Device = NULL;
+        mInterface->clear();
         internalUpdateStatusLocked(STATUS_UNINITIALIZED);
     }
 
@@ -447,12 +485,86 @@
     }
 }
 
+hardware::graphics::common::V1_0::PixelFormat Camera3Device::mapToPixelFormat(
+        int frameworkFormat) {
+    return (hardware::graphics::common::V1_0::PixelFormat) frameworkFormat;
+}
+
+DataspaceFlags Camera3Device::mapToHidlDataspace(
+        android_dataspace dataSpace) {
+    return dataSpace;
+}
+
+ConsumerUsageFlags Camera3Device::mapToConsumerUsage(
+        uint32_t usage) {
+    return usage;
+}
+
+StreamRotation Camera3Device::mapToStreamRotation(camera3_stream_rotation_t rotation) {
+    switch (rotation) {
+        case CAMERA3_STREAM_ROTATION_0:
+            return StreamRotation::ROTATION_0;
+        case CAMERA3_STREAM_ROTATION_90:
+            return StreamRotation::ROTATION_90;
+        case CAMERA3_STREAM_ROTATION_180:
+            return StreamRotation::ROTATION_180;
+        case CAMERA3_STREAM_ROTATION_270:
+            return StreamRotation::ROTATION_270;
+    }
+    ALOGE("%s: Unknown stream rotation %d", __FUNCTION__, rotation);
+    return StreamRotation::ROTATION_0;
+}
+
+status_t Camera3Device::mapToStreamConfigurationMode(
+        camera3_stream_configuration_mode_t operationMode, StreamConfigurationMode *mode) {
+    if (mode == nullptr) return BAD_VALUE;
+    if (operationMode < CAMERA3_VENDOR_STREAM_CONFIGURATION_MODE_START) {
+        switch(operationMode) {
+            case CAMERA3_STREAM_CONFIGURATION_NORMAL_MODE:
+                *mode = StreamConfigurationMode::NORMAL_MODE;
+                break;
+            case CAMERA3_STREAM_CONFIGURATION_CONSTRAINED_HIGH_SPEED_MODE:
+                *mode = StreamConfigurationMode::CONSTRAINED_HIGH_SPEED_MODE;
+                break;
+            default:
+                ALOGE("%s: Unknown stream configuration mode %d", __FUNCTION__, operationMode);
+                return BAD_VALUE;
+        }
+    } else {
+        *mode = static_cast<StreamConfigurationMode>(operationMode);
+    }
+    return OK;
+}
+
+camera3_buffer_status_t Camera3Device::mapHidlBufferStatus(BufferStatus status) {
+    switch (status) {
+        case BufferStatus::OK: return CAMERA3_BUFFER_STATUS_OK;
+        case BufferStatus::ERROR: return CAMERA3_BUFFER_STATUS_ERROR;
+    }
+    return CAMERA3_BUFFER_STATUS_ERROR;
+}
+
+int Camera3Device::mapToFrameworkFormat(
+        hardware::graphics::common::V1_0::PixelFormat pixelFormat) {
+    return static_cast<uint32_t>(pixelFormat);
+}
+
+uint32_t Camera3Device::mapConsumerToFrameworkUsage(
+        ConsumerUsageFlags usage) {
+    return usage;
+}
+
+uint32_t Camera3Device::mapProducerToFrameworkUsage(
+        ProducerUsageFlags usage) {
+    return usage;
+}
+
 ssize_t Camera3Device::getJpegBufferSize(uint32_t width, uint32_t height) const {
     // Get max jpeg size (area-wise).
     Size maxJpegResolution = getMaxJpegResolution();
     if (maxJpegResolution.width == 0) {
-        ALOGE("%s: Camera %d: Can't find valid available jpeg sizes in static metadata!",
-                __FUNCTION__, mId);
+        ALOGE("%s: Camera %s: Can't find valid available jpeg sizes in static metadata!",
+                __FUNCTION__, mId.string());
         return BAD_VALUE;
     }
 
@@ -460,7 +572,8 @@
     ssize_t maxJpegBufferSize = 0;
     camera_metadata_ro_entry jpegBufMaxSize = mDeviceInfo.find(ANDROID_JPEG_MAX_SIZE);
     if (jpegBufMaxSize.count == 0) {
-        ALOGE("%s: Camera %d: Can't find maximum JPEG size in static metadata!", __FUNCTION__, mId);
+        ALOGE("%s: Camera %s: Can't find maximum JPEG size in static metadata!", __FUNCTION__,
+                mId.string());
         return BAD_VALUE;
     }
     maxJpegBufferSize = jpegBufMaxSize.data.i32[0];
@@ -482,8 +595,8 @@
     const int FLOATS_PER_POINT=4;
     camera_metadata_ro_entry maxPointCount = mDeviceInfo.find(ANDROID_DEPTH_MAX_DEPTH_SAMPLES);
     if (maxPointCount.count == 0) {
-        ALOGE("%s: Camera %d: Can't find maximum depth point cloud size in static metadata!",
-                __FUNCTION__, mId);
+        ALOGE("%s: Camera %s: Can't find maximum depth point cloud size in static metadata!",
+                __FUNCTION__, mId.string());
         return BAD_VALUE;
     }
     ssize_t maxBytesForPointCloud = sizeof(android_depth_points) +
@@ -500,8 +613,8 @@
         mDeviceInfo.find(ANDROID_SENSOR_OPAQUE_RAW_SIZE);
     size_t count = rawOpaqueSizes.count;
     if (count == 0 || (count % PER_CONFIGURATION_SIZE)) {
-        ALOGE("%s: Camera %d: bad opaque RAW size static metadata length(%zu)!",
-                __FUNCTION__, mId, count);
+        ALOGE("%s: Camera %s: bad opaque RAW size static metadata length(%zu)!",
+                __FUNCTION__, mId.string(), count);
         return BAD_VALUE;
     }
 
@@ -512,8 +625,8 @@
         }
     }
 
-    ALOGE("%s: Camera %d: cannot find size for %dx%d opaque RAW image!",
-            __FUNCTION__, mId, width, height);
+    ALOGE("%s: Camera %s: cannot find size for %dx%d opaque RAW image!",
+            __FUNCTION__, mId.string(), width, height);
     return BAD_VALUE;
 }
 
@@ -527,11 +640,11 @@
     bool gotLock = tryLockSpinRightRound(mLock);
 
     ALOGW_IF(!gotInterfaceLock,
-            "Camera %d: %s: Unable to lock interface lock, proceeding anyway",
-            mId, __FUNCTION__);
+            "Camera %s: %s: Unable to lock interface lock, proceeding anyway",
+            mId.string(), __FUNCTION__);
     ALOGW_IF(!gotLock,
-            "Camera %d: %s: Unable to lock main lock, proceeding anyway",
-            mId, __FUNCTION__);
+            "Camera %s: %s: Unable to lock main lock, proceeding anyway",
+            mId.string(), __FUNCTION__);
 
     bool dumpTemplates = false;
 
@@ -571,8 +684,12 @@
         lines.appendFormat("    Error cause: %s\n", mErrorCause.string());
     }
     lines.appendFormat("    Stream configuration:\n");
-    lines.appendFormat("    Operation mode: %s \n", mIsConstrainedHighSpeedConfiguration ?
-            "CONSTRAINED HIGH SPEED VIDEO" : "NORMAL");
+    const char *mode =
+            mOperatingMode == static_cast<int>(StreamConfigurationMode::NORMAL_MODE) ? "NORMAL" :
+            mOperatingMode == static_cast<int>(
+                StreamConfigurationMode::CONSTRAINED_HIGH_SPEED_MODE) ? "CONSTRAINED_HIGH_SPEED" :
+            "CUSTOM";
+    lines.appendFormat("    Operation mode: %s (%d) \n", mode, mOperatingMode);
 
     if (mInputStream != NULL) {
         write(fd, lines.string(), lines.size());
@@ -624,12 +741,11 @@
         };
 
         for (int i = 1; i < CAMERA3_TEMPLATE_COUNT; i++) {
-            const camera_metadata_t *templateRequest;
-            templateRequest =
-                mHal3Device->ops->construct_default_request_settings(
-                    mHal3Device, i);
+            camera_metadata_t *templateRequest = nullptr;
+            mInterface->constructDefaultRequestSettings(
+                    (camera3_request_template_t) i, &templateRequest);
             lines = String8::format("    HAL Request %s:\n", templateNames[i-1]);
-            if (templateRequest == NULL) {
+            if (templateRequest == nullptr) {
                 lines.append("       Not supported\n");
                 write(fd, lines.string(), lines.size());
             } else {
@@ -637,15 +753,16 @@
                 dump_indented_camera_metadata(templateRequest,
                         fd, /*verbosity*/2, /*indentation*/8);
             }
+            free_camera_metadata(templateRequest);
         }
     }
 
     mTagMonitor.dumpMonitoredMetadata(fd);
 
-    if (mHal3Device != NULL) {
-        lines = String8("    HAL device dump:\n");
+    if (mInterface->valid()) {
+        lines = String8("     HAL device dump:\n");
         write(fd, lines.string(), lines.size());
-        mHal3Device->ops->dump(mHal3Device, fd);
+        mInterface->dump(fd);
     }
 
     if (gotLock) mLock.unlock();
@@ -686,29 +803,36 @@
 }
 
 status_t Camera3Device::convertMetadataListToRequestListLocked(
-        const List<const CameraMetadata> &metadataList, RequestList *requestList) {
+        const List<const CameraMetadata> &metadataList,
+        const std::list<const SurfaceMap> &surfaceMaps,
+        bool repeating,
+        RequestList *requestList) {
     if (requestList == NULL) {
         CLOGE("requestList cannot be NULL.");
         return BAD_VALUE;
     }
 
     int32_t burstId = 0;
-    for (List<const CameraMetadata>::const_iterator it = metadataList.begin();
-            it != metadataList.end(); ++it) {
-        sp<CaptureRequest> newRequest = setUpRequestLocked(*it);
+    List<const CameraMetadata>::const_iterator metadataIt = metadataList.begin();
+    std::list<const SurfaceMap>::const_iterator surfaceMapIt = surfaceMaps.begin();
+    for (; metadataIt != metadataList.end() && surfaceMapIt != surfaceMaps.end();
+            ++metadataIt, ++surfaceMapIt) {
+        sp<CaptureRequest> newRequest = setUpRequestLocked(*metadataIt, *surfaceMapIt);
         if (newRequest == 0) {
             CLOGE("Can't create capture request");
             return BAD_VALUE;
         }
 
+        newRequest->mRepeating = repeating;
+
         // Setup burst Id and request Id
         newRequest->mResultExtras.burstId = burstId++;
-        if (it->exists(ANDROID_REQUEST_ID)) {
-            if (it->find(ANDROID_REQUEST_ID).count == 0) {
+        if (metadataIt->exists(ANDROID_REQUEST_ID)) {
+            if (metadataIt->find(ANDROID_REQUEST_ID).count == 0) {
                 CLOGE("RequestID entry exists; but must not be empty in metadata");
                 return BAD_VALUE;
             }
-            newRequest->mResultExtras.requestId = it->find(ANDROID_REQUEST_ID).data.i32[0];
+            newRequest->mResultExtras.requestId = metadataIt->find(ANDROID_REQUEST_ID).data.i32[0];
         } else {
             CLOGE("RequestID does not exist in metadata");
             return BAD_VALUE;
@@ -718,6 +842,10 @@
 
         ALOGV("%s: requestId = %" PRId32, __FUNCTION__, newRequest->mResultExtras.requestId);
     }
+    if (metadataIt != metadataList.end() || surfaceMapIt != surfaceMaps.end()) {
+        ALOGE("%s: metadataList and surfaceMaps are not the same size!", __FUNCTION__);
+        return BAD_VALUE;
+    }
 
     // Setup batch size if this is a high speed video recording request.
     if (mIsConstrainedHighSpeedConfiguration && requestList->size() > 0) {
@@ -737,12 +865,31 @@
     ATRACE_CALL();
 
     List<const CameraMetadata> requests;
+    std::list<const SurfaceMap> surfaceMaps;
+    convertToRequestList(requests, surfaceMaps, request);
+
+    return captureList(requests, surfaceMaps, /*lastFrameNumber*/NULL);
+}
+
+void Camera3Device::convertToRequestList(List<const CameraMetadata>& requests,
+        std::list<const SurfaceMap>& surfaceMaps,
+        const CameraMetadata& request) {
     requests.push_back(request);
-    return captureList(requests, /*lastFrameNumber*/NULL);
+
+    SurfaceMap surfaceMap;
+    camera_metadata_ro_entry streams = request.find(ANDROID_REQUEST_OUTPUT_STREAMS);
+    // With no surface list passed in, stream and surface will have 1-to-1
+    // mapping. So the surface index is 0 for each stream in the surfaceMap.
+    for (size_t i = 0; i < streams.count; i++) {
+        surfaceMap[streams.data.i32[i]].push_back(0);
+    }
+    surfaceMaps.push_back(surfaceMap);
 }
 
 status_t Camera3Device::submitRequestsHelper(
-        const List<const CameraMetadata> &requests, bool repeating,
+        const List<const CameraMetadata> &requests,
+        const std::list<const SurfaceMap> &surfaceMaps,
+        bool repeating,
         /*out*/
         int64_t *lastFrameNumber) {
     ATRACE_CALL();
@@ -757,7 +904,8 @@
 
     RequestList requestList;
 
-    res = convertMetadataListToRequestListLocked(requests, /*out*/&requestList);
+    res = convertMetadataListToRequestListLocked(requests, surfaceMaps,
+            repeating, /*out*/&requestList);
     if (res != OK) {
         // error logged by previous call
         return res;
@@ -775,7 +923,7 @@
             SET_ERR_L("Can't transition to active in %f seconds!",
                     kActiveTimeout/1e9);
         }
-        ALOGV("Camera %d: Capture request %" PRId32 " enqueued", mId,
+        ALOGV("Camera %s: Capture request %" PRId32 " enqueued", mId.string(),
               (*(requestList.begin()))->mResultExtras.requestId);
     } else {
         CLOGE("Cannot queue request. Impossible.");
@@ -785,11 +933,150 @@
     return res;
 }
 
+hardware::Return<void> Camera3Device::processCaptureResult(
+        const device::V3_2::CaptureResult& result) {
+    camera3_capture_result r;
+    status_t res;
+    r.frame_number = result.frameNumber;
+    if (result.result.size() != 0) {
+        r.result = reinterpret_cast<const camera_metadata_t*>(result.result.data());
+        size_t expected_metadata_size = result.result.size();
+        if ((res = validate_camera_metadata_structure(r.result, &expected_metadata_size)) != OK) {
+            ALOGE("%s: Frame %d: Invalid camera metadata received by camera service from HAL: %s (%d)",
+                    __FUNCTION__, result.frameNumber, strerror(-res), res);
+            return hardware::Void();
+        }
+    } else {
+        r.result = nullptr;
+    }
+
+    std::vector<camera3_stream_buffer_t> outputBuffers(result.outputBuffers.size());
+    std::vector<buffer_handle_t> outputBufferHandles(result.outputBuffers.size());
+    for (size_t i = 0; i < result.outputBuffers.size(); i++) {
+        auto& bDst = outputBuffers[i];
+        const StreamBuffer &bSrc = result.outputBuffers[i];
+
+        ssize_t idx = mOutputStreams.indexOfKey(bSrc.streamId);
+        if (idx == -1) {
+            ALOGE("%s: Frame %d: Buffer %zu: Invalid output stream id %d",
+                    __FUNCTION__, result.frameNumber, i, bSrc.streamId);
+            return hardware::Void();
+        }
+        bDst.stream = mOutputStreams.valueAt(idx)->asHalStream();
+
+        buffer_handle_t *buffer;
+        res = mInterface->popInflightBuffer(result.frameNumber, bSrc.streamId, &buffer);
+        if (res != OK) {
+            ALOGE("%s: Frame %d: Buffer %zu: No in-flight buffer for stream %d",
+                    __FUNCTION__, result.frameNumber, i, bSrc.streamId);
+            return hardware::Void();
+        }
+        bDst.buffer = buffer;
+        bDst.status = mapHidlBufferStatus(bSrc.status);
+        bDst.acquire_fence = -1;
+        if (bSrc.releaseFence == nullptr) {
+            bDst.release_fence = -1;
+        } else if (bSrc.releaseFence->numFds == 1) {
+            bDst.release_fence = dup(bSrc.releaseFence->data[0]);
+        } else {
+            ALOGE("%s: Frame %d: Invalid release fence for buffer %zu, fd count is %d, not 1",
+                    __FUNCTION__, result.frameNumber, i, bSrc.releaseFence->numFds);
+            return hardware::Void();
+        }
+    }
+    r.num_output_buffers = outputBuffers.size();
+    r.output_buffers = outputBuffers.data();
+
+    camera3_stream_buffer_t inputBuffer;
+    if (result.inputBuffer.streamId == -1) {
+        r.input_buffer = nullptr;
+    } else {
+        if (mInputStream->getId() != result.inputBuffer.streamId) {
+            ALOGE("%s: Frame %d: Invalid input stream id %d", __FUNCTION__,
+                    result.frameNumber, result.inputBuffer.streamId);
+            return hardware::Void();
+        }
+        inputBuffer.stream = mInputStream->asHalStream();
+        buffer_handle_t *buffer;
+        res = mInterface->popInflightBuffer(result.frameNumber, result.inputBuffer.streamId,
+                &buffer);
+        if (res != OK) {
+            ALOGE("%s: Frame %d: Input buffer: No in-flight buffer for stream %d",
+                    __FUNCTION__, result.frameNumber, result.inputBuffer.streamId);
+            return hardware::Void();
+        }
+        inputBuffer.buffer = buffer;
+        inputBuffer.status = mapHidlBufferStatus(result.inputBuffer.status);
+        inputBuffer.acquire_fence = -1;
+        if (result.inputBuffer.releaseFence == nullptr) {
+            inputBuffer.release_fence = -1;
+        } else if (result.inputBuffer.releaseFence->numFds == 1) {
+            inputBuffer.release_fence = dup(result.inputBuffer.releaseFence->data[0]);
+        } else {
+            ALOGE("%s: Frame %d: Invalid release fence for input buffer, fd count is %d, not 1",
+                    __FUNCTION__, result.frameNumber, result.inputBuffer.releaseFence->numFds);
+            return hardware::Void();
+        }
+        r.input_buffer = &inputBuffer;
+    }
+
+    r.partial_result = result.partialResult;
+
+    processCaptureResult(&r);
+
+    return hardware::Void();
+}
+
+hardware::Return<void> Camera3Device::notify(
+        const NotifyMsg& msg) {
+    camera3_notify_msg m;
+    switch (msg.type) {
+        case MsgType::ERROR:
+            m.type = CAMERA3_MSG_ERROR;
+            m.message.error.frame_number = msg.msg.error.frameNumber;
+            if (msg.msg.error.errorStreamId >= 0) {
+                ssize_t idx = mOutputStreams.indexOfKey(msg.msg.error.errorStreamId);
+                if (idx == -1) {
+                    ALOGE("%s: Frame %d: Invalid error stream id %d",
+                            __FUNCTION__, m.message.error.frame_number, msg.msg.error.errorStreamId);
+                    return hardware::Void();
+                }
+                m.message.error.error_stream = mOutputStreams.valueAt(idx)->asHalStream();
+            } else {
+                m.message.error.error_stream = nullptr;
+            }
+            switch (msg.msg.error.errorCode) {
+                case ErrorCode::ERROR_DEVICE:
+                    m.message.error.error_code = CAMERA3_MSG_ERROR_DEVICE;
+                    break;
+                case ErrorCode::ERROR_REQUEST:
+                    m.message.error.error_code = CAMERA3_MSG_ERROR_REQUEST;
+                    break;
+                case ErrorCode::ERROR_RESULT:
+                    m.message.error.error_code = CAMERA3_MSG_ERROR_RESULT;
+                    break;
+                case ErrorCode::ERROR_BUFFER:
+                    m.message.error.error_code = CAMERA3_MSG_ERROR_BUFFER;
+                    break;
+            }
+            break;
+        case MsgType::SHUTTER:
+            m.type = CAMERA3_MSG_SHUTTER;
+            m.message.shutter.frame_number = msg.msg.shutter.frameNumber;
+            m.message.shutter.timestamp = msg.msg.shutter.timestamp;
+            break;
+    }
+    notify(&m);
+
+    return hardware::Void();
+}
+
 status_t Camera3Device::captureList(const List<const CameraMetadata> &requests,
+                                    const std::list<const SurfaceMap> &surfaceMaps,
                                     int64_t *lastFrameNumber) {
     ATRACE_CALL();
 
-    return submitRequestsHelper(requests, /*repeating*/false, lastFrameNumber);
+    return submitRequestsHelper(requests, surfaceMaps, /*repeating*/false, lastFrameNumber);
 }
 
 status_t Camera3Device::setStreamingRequest(const CameraMetadata &request,
@@ -797,23 +1084,29 @@
     ATRACE_CALL();
 
     List<const CameraMetadata> requests;
-    requests.push_back(request);
-    return setStreamingRequestList(requests, /*lastFrameNumber*/NULL);
+    std::list<const SurfaceMap> surfaceMaps;
+    convertToRequestList(requests, surfaceMaps, request);
+
+    return setStreamingRequestList(requests, /*surfaceMap*/surfaceMaps,
+                                   /*lastFrameNumber*/NULL);
 }
 
 status_t Camera3Device::setStreamingRequestList(const List<const CameraMetadata> &requests,
+                                                const std::list<const SurfaceMap> &surfaceMaps,
                                                 int64_t *lastFrameNumber) {
     ATRACE_CALL();
 
-    return submitRequestsHelper(requests, /*repeating*/true, lastFrameNumber);
+    return submitRequestsHelper(requests, surfaceMaps, /*repeating*/true, lastFrameNumber);
 }
 
 sp<Camera3Device::CaptureRequest> Camera3Device::setUpRequestLocked(
-        const CameraMetadata &request) {
+        const CameraMetadata &request, const SurfaceMap &surfaceMap) {
     status_t res;
 
     if (mStatus == STATUS_UNCONFIGURED || mNeedConfig) {
-        res = configureStreamsLocked();
+        // This point should only be reached via API1 (API2 must explicitly call configureStreams)
+        // so unilaterally select normal operating mode.
+        res = configureStreamsLocked(CAMERA3_STREAM_CONFIGURATION_NORMAL_MODE);
         // Stream configuration failed. Client might try other configuraitons.
         if (res != OK) {
             CLOGE("Can't set up streams: %s (%d)", strerror(-res), res);
@@ -825,7 +1118,7 @@
         }
     }
 
-    sp<CaptureRequest> newRequest = createCaptureRequest(request);
+    sp<CaptureRequest> newRequest = createCaptureRequest(request, surfaceMap);
     return newRequest;
 }
 
@@ -850,7 +1143,7 @@
             SET_ERR_L("Unexpected status: %d", mStatus);
             return INVALID_OPERATION;
     }
-    ALOGV("Camera %d: Clearing repeating request", mId);
+    ALOGV("Camera %s: Clearing repeating request", mId.string());
 
     return mRequestThread->clearRepeatingRequests(lastFrameNumber);
 }
@@ -867,8 +1160,8 @@
     ATRACE_CALL();
     Mutex::Autolock il(mInterfaceLock);
     Mutex::Autolock l(mLock);
-    ALOGV("Camera %d: Creating new input stream %d: %d x %d, format %d",
-            mId, mNextStreamId, width, height, format);
+    ALOGV("Camera %s: Creating new input stream %d: %d x %d, format %d",
+            mId.string(), mNextStreamId, width, height, format);
 
     status_t res;
     bool wasActive = false;
@@ -915,7 +1208,8 @@
     // Continue captures if active at start
     if (wasActive) {
         ALOGV("%s: Restarting activity to reconfigure streams", __FUNCTION__);
-        res = configureStreamsLocked();
+        // Reuse current operating mode for new stream config
+        res = configureStreamsLocked(mOperatingMode);
         if (res != OK) {
             ALOGE("%s: Can't reconfigure device for new stream %d: %s (%d)",
                     __FUNCTION__, mNextStreamId, strerror(-res), res);
@@ -924,99 +1218,38 @@
         internalResumeLocked();
     }
 
-    ALOGV("Camera %d: Created input stream", mId);
-    return OK;
-}
-
-
-status_t Camera3Device::createZslStream(
-            uint32_t width, uint32_t height,
-            int depth,
-            /*out*/
-            int *id,
-            sp<Camera3ZslStream>* zslStream) {
-    ATRACE_CALL();
-    Mutex::Autolock il(mInterfaceLock);
-    Mutex::Autolock l(mLock);
-    ALOGV("Camera %d: Creating ZSL stream %d: %d x %d, depth %d",
-            mId, mNextStreamId, width, height, depth);
-
-    status_t res;
-    bool wasActive = false;
-
-    switch (mStatus) {
-        case STATUS_ERROR:
-            ALOGE("%s: Device has encountered a serious error", __FUNCTION__);
-            return INVALID_OPERATION;
-        case STATUS_UNINITIALIZED:
-            ALOGE("%s: Device not initialized", __FUNCTION__);
-            return INVALID_OPERATION;
-        case STATUS_UNCONFIGURED:
-        case STATUS_CONFIGURED:
-            // OK
-            break;
-        case STATUS_ACTIVE:
-            ALOGV("%s: Stopping activity to reconfigure streams", __FUNCTION__);
-            res = internalPauseAndWaitLocked();
-            if (res != OK) {
-                SET_ERR_L("Can't pause captures to reconfigure streams!");
-                return res;
-            }
-            wasActive = true;
-            break;
-        default:
-            SET_ERR_L("Unexpected status: %d", mStatus);
-            return INVALID_OPERATION;
-    }
-    assert(mStatus != STATUS_ACTIVE);
-
-    if (mInputStream != 0) {
-        ALOGE("%s: Cannot create more than 1 input stream", __FUNCTION__);
-        return INVALID_OPERATION;
-    }
-
-    sp<Camera3ZslStream> newStream = new Camera3ZslStream(mNextStreamId,
-                width, height, depth);
-    newStream->setStatusTracker(mStatusTracker);
-
-    res = mOutputStreams.add(mNextStreamId, newStream);
-    if (res < 0) {
-        ALOGE("%s: Can't add new stream to set: %s (%d)",
-                __FUNCTION__, strerror(-res), res);
-        return res;
-    }
-    mInputStream = newStream;
-
-    mNeedConfig = true;
-
-    *id = mNextStreamId++;
-    *zslStream = newStream;
-
-    // Continue captures if active at start
-    if (wasActive) {
-        ALOGV("%s: Restarting activity to reconfigure streams", __FUNCTION__);
-        res = configureStreamsLocked();
-        if (res != OK) {
-            ALOGE("%s: Can't reconfigure device for new stream %d: %s (%d)",
-                    __FUNCTION__, mNextStreamId, strerror(-res), res);
-            return res;
-        }
-        internalResumeLocked();
-    }
-
-    ALOGV("Camera %d: Created ZSL stream", mId);
+    ALOGV("Camera %s: Created input stream", mId.string());
     return OK;
 }
 
 status_t Camera3Device::createStream(sp<Surface> consumer,
-        uint32_t width, uint32_t height, int format, android_dataspace dataSpace,
-        camera3_stream_rotation_t rotation, int *id, int streamSetId, uint32_t consumerUsage) {
+            uint32_t width, uint32_t height, int format,
+            android_dataspace dataSpace, camera3_stream_rotation_t rotation, int *id,
+            int streamSetId, bool isShared, uint32_t consumerUsage) {
+    ATRACE_CALL();
+
+    if (consumer == nullptr) {
+        ALOGE("%s: consumer must not be null", __FUNCTION__);
+        return BAD_VALUE;
+    }
+
+    std::vector<sp<Surface>> consumers;
+    consumers.push_back(consumer);
+
+    return createStream(consumers, /*hasDeferredConsumer*/ false, width, height,
+            format, dataSpace, rotation, id, streamSetId, isShared, consumerUsage);
+}
+
+status_t Camera3Device::createStream(const std::vector<sp<Surface>>& consumers,
+        bool hasDeferredConsumer, uint32_t width, uint32_t height, int format,
+        android_dataspace dataSpace, camera3_stream_rotation_t rotation, int *id,
+        int streamSetId, bool isShared, uint32_t consumerUsage) {
     ATRACE_CALL();
     Mutex::Autolock il(mInterfaceLock);
     Mutex::Autolock l(mLock);
-    ALOGV("Camera %d: Creating new stream %d: %d x %d, format %d, dataspace %d rotation %d"
-            " consumer usage 0x%x", mId, mNextStreamId, width, height, format, dataSpace, rotation,
-            consumerUsage);
+    ALOGV("Camera %s: Creating new stream %d: %d x %d, format %d, dataspace %d rotation %d"
+            " consumer usage 0x%x, isShared %d", mId.string(), mNextStreamId, width, height, format,
+            dataSpace, rotation, consumerUsage, isShared);
 
     status_t res;
     bool wasActive = false;
@@ -1054,14 +1287,18 @@
         streamSetId = CAMERA3_STREAM_SET_ID_INVALID;
     }
 
+    if (consumers.size() == 0 && !hasDeferredConsumer) {
+        ALOGE("%s: Number of consumers cannot be smaller than 1", __FUNCTION__);
+        return BAD_VALUE;
+    }
     // HAL3.1 doesn't support deferred consumer stream creation as it requires buffer registration
     // which requires a consumer surface to be available.
-    if (consumer == nullptr && mDeviceVersion < CAMERA_DEVICE_API_VERSION_3_2) {
+    if (hasDeferredConsumer && mDeviceVersion < CAMERA_DEVICE_API_VERSION_3_2) {
         ALOGE("HAL3.1 doesn't support deferred consumer stream creation");
         return BAD_VALUE;
     }
 
-    if (consumer == nullptr && format != HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED) {
+    if (hasDeferredConsumer && format != HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED) {
         ALOGE("Deferred consumer stream creation only support IMPLEMENTATION_DEFINED format");
         return BAD_VALUE;
     }
@@ -1085,7 +1322,7 @@
                 return BAD_VALUE;
             }
         }
-        newStream = new Camera3OutputStream(mNextStreamId, consumer,
+        newStream = new Camera3OutputStream(mNextStreamId, consumers[0],
                 width, height, blobBufferSize, format, dataSpace, rotation,
                 mTimestampOffset, streamSetId);
     } else if (format == HAL_PIXEL_FORMAT_RAW_OPAQUE) {
@@ -1094,15 +1331,19 @@
             SET_ERR_L("Invalid RAW opaque buffer size %zd", rawOpaqueBufferSize);
             return BAD_VALUE;
         }
-        newStream = new Camera3OutputStream(mNextStreamId, consumer,
+        newStream = new Camera3OutputStream(mNextStreamId, consumers[0],
                 width, height, rawOpaqueBufferSize, format, dataSpace, rotation,
                 mTimestampOffset, streamSetId);
-    } else if (consumer == nullptr) {
+    } else if (isShared) {
+        newStream = new Camera3SharedOutputStream(mNextStreamId, consumers,
+                width, height, format, consumerUsage, dataSpace, rotation,
+                mTimestampOffset, streamSetId);
+    } else if (consumers.size() == 0 && hasDeferredConsumer) {
         newStream = new Camera3OutputStream(mNextStreamId,
                 width, height, format, consumerUsage, dataSpace, rotation,
                 mTimestampOffset, streamSetId);
     } else {
-        newStream = new Camera3OutputStream(mNextStreamId, consumer,
+        newStream = new Camera3OutputStream(mNextStreamId, consumers[0],
                 width, height, format, dataSpace, rotation,
                 mTimestampOffset, streamSetId);
     }
@@ -1130,7 +1371,8 @@
     // Continue captures if active at start
     if (wasActive) {
         ALOGV("%s: Restarting activity to reconfigure streams", __FUNCTION__);
-        res = configureStreamsLocked();
+        // Reuse current operating mode for new stream config
+        res = configureStreamsLocked(mOperatingMode);
         if (res != OK) {
             CLOGE("Can't reconfigure device for new stream %d: %s (%d)",
                     mNextStreamId, strerror(-res), res);
@@ -1138,7 +1380,7 @@
         }
         internalResumeLocked();
     }
-    ALOGV("Camera %d: Created new stream", mId);
+    ALOGV("Camera %s: Created new stream", mId.string());
     return OK;
 }
 
@@ -1227,12 +1469,12 @@
     Mutex::Autolock l(mLock);
     status_t res;
 
-    ALOGV("%s: Camera %d: Deleting stream %d", __FUNCTION__, mId, id);
+    ALOGV("%s: Camera %s: Deleting stream %d", __FUNCTION__, mId.string(), id);
 
     // CameraDevice semantics require device to already be idle before
     // deleteStream is called, unlike for createStream.
     if (mStatus == STATUS_ACTIVE) {
-        ALOGV("%s: Camera %d: Device not idle", __FUNCTION__, mId);
+        ALOGV("%s: Camera %s: Device not idle", __FUNCTION__, mId.string());
         return -EBUSY;
     }
 
@@ -1274,19 +1516,14 @@
     return INVALID_OPERATION;
 }
 
-status_t Camera3Device::configureStreams(bool isConstrainedHighSpeed) {
+status_t Camera3Device::configureStreams(int operatingMode) {
     ATRACE_CALL();
     ALOGV("%s: E", __FUNCTION__);
 
     Mutex::Autolock il(mInterfaceLock);
     Mutex::Autolock l(mLock);
 
-    if (mIsConstrainedHighSpeedConfiguration != isConstrainedHighSpeed) {
-        mNeedConfig = true;
-        mIsConstrainedHighSpeedConfiguration = isConstrainedHighSpeed;
-    }
-
-    return configureStreamsLocked();
+    return configureStreamsLocked(operatingMode);
 }
 
 status_t Camera3Device::getInputBufferProducer(
@@ -1339,18 +1576,20 @@
         return OK;
     }
 
-    const camera_metadata_t *rawRequest;
-    ATRACE_BEGIN("camera3->construct_default_request_settings");
-    rawRequest = mHal3Device->ops->construct_default_request_settings(
-        mHal3Device, templateId);
-    ATRACE_END();
-    if (rawRequest == NULL) {
+    camera_metadata_t *rawRequest;
+    status_t res = mInterface->constructDefaultRequestSettings(
+            (camera3_request_template_t) templateId, &rawRequest);
+    if (res == BAD_VALUE) {
         ALOGI("%s: template %d is not supported on this camera device",
               __FUNCTION__, templateId);
-        return BAD_VALUE;
+        return res;
+    } else if (res != OK) {
+        CLOGE("Unable to construct request template %d: %s (%d)",
+                templateId, strerror(-res), res);
+        return res;
     }
 
-    mRequestTemplateCache[templateId] = rawRequest;
+    mRequestTemplateCache[templateId].acquire(rawRequest);
 
     // Derive some new keys for backward compatibility
     if (mDerivePostRawSensKey && !mRequestTemplateCache[templateId].exists(
@@ -1390,7 +1629,7 @@
             return INVALID_OPERATION;
     }
 
-    ALOGV("%s: Camera %d: Waiting until idle", __FUNCTION__, mId);
+    ALOGV("%s: Camera %s: Waiting until idle", __FUNCTION__, mId.string());
     status_t res = waitUntilStateThenRelock(/*active*/ false, kShutdownTimeout);
     if (res != OK) {
         SET_ERR_L("Error waiting for HAL to drain: %s (%d)", strerror(-res),
@@ -1411,7 +1650,7 @@
     mRequestThread->setPaused(true);
     mPauseStateNotify = true;
 
-    ALOGV("%s: Camera %d: Internal wait until idle", __FUNCTION__, mId);
+    ALOGV("%s: Camera %s: Internal wait until idle", __FUNCTION__, mId.string());
     status_t res = waitUntilStateThenRelock(/*active*/ false, kShutdownTimeout);
     if (res != OK) {
         SET_ERR_L("Can't idle device in %f seconds!",
@@ -1510,8 +1749,8 @@
         if (res == TIMED_OUT) {
             return res;
         } else if (res != OK) {
-            ALOGW("%s: Camera %d: No frame in %" PRId64 " ns: %s (%d)",
-                    __FUNCTION__, mId, timeout, strerror(-res), res);
+            ALOGW("%s: Camera %s: No frame in %" PRId64 " ns: %s (%d)",
+                    __FUNCTION__, mId.string(), timeout, strerror(-res), res);
             return res;
         }
     }
@@ -1613,7 +1852,7 @@
 
 status_t Camera3Device::flush(int64_t *frameNumber) {
     ATRACE_CALL();
-    ALOGV("%s: Camera %d: Flushing all requests", __FUNCTION__, mId);
+    ALOGV("%s: Camera %s: Flushing all requests", __FUNCTION__, mId.string());
     Mutex::Autolock il(mInterfaceLock);
 
     {
@@ -1622,7 +1861,7 @@
     }
 
     status_t res;
-    if (mHal3Device->common.version >= CAMERA_DEVICE_API_VERSION_3_1) {
+    if (mDeviceVersion >= CAMERA_DEVICE_API_VERSION_3_1) {
         res = mRequestThread->flush();
     } else {
         Mutex::Autolock l(mLock);
@@ -1638,7 +1877,7 @@
 
 status_t Camera3Device::prepare(int maxCount, int streamId) {
     ATRACE_CALL();
-    ALOGV("%s: Camera %d: Preparing stream %d", __FUNCTION__, mId, streamId);
+    ALOGV("%s: Camera %s: Preparing stream %d", __FUNCTION__, mId.string(), streamId);
     Mutex::Autolock il(mInterfaceLock);
     Mutex::Autolock l(mLock);
 
@@ -1666,15 +1905,15 @@
 
 status_t Camera3Device::tearDown(int streamId) {
     ATRACE_CALL();
-    ALOGV("%s: Camera %d: Tearing down stream %d", __FUNCTION__, mId, streamId);
+    ALOGV("%s: Camera %s: Tearing down stream %d", __FUNCTION__, mId.string(), streamId);
     Mutex::Autolock il(mInterfaceLock);
     Mutex::Autolock l(mLock);
 
     // Teardown can only be accomplished on devices that don't require register_stream_buffers,
     // since we cannot call register_stream_buffers except right after configure_streams.
-    if (mHal3Device->common.version < CAMERA_DEVICE_API_VERSION_3_2) {
+    if (mDeviceVersion < CAMERA_DEVICE_API_VERSION_3_2) {
         ALOGE("%s: Unable to tear down streams on device HAL v%x",
-                __FUNCTION__, mHal3Device->common.version);
+                __FUNCTION__, mDeviceVersion);
         return NO_INIT;
     }
 
@@ -1698,7 +1937,7 @@
 status_t Camera3Device::addBufferListenerForStream(int streamId,
         wp<Camera3StreamBufferListener> listener) {
     ATRACE_CALL();
-    ALOGV("%s: Camera %d: Adding buffer listener for stream %d", __FUNCTION__, mId, streamId);
+    ALOGV("%s: Camera %s: Adding buffer listener for stream %d", __FUNCTION__, mId.string(), streamId);
     Mutex::Autolock il(mInterfaceLock);
     Mutex::Autolock l(mLock);
 
@@ -1736,7 +1975,7 @@
         if (mStatus != STATUS_ACTIVE && mStatus != STATUS_CONFIGURED) {
             return;
         }
-        ALOGV("%s: Camera %d: Now %s", __FUNCTION__, mId,
+        ALOGV("%s: Camera %s: Now %s", __FUNCTION__, mId.string(),
                 idle ? "idle" : "active");
         internalUpdateStatusLocked(idle ? STATUS_CONFIGURED : STATUS_ACTIVE);
 
@@ -1755,14 +1994,16 @@
     }
 }
 
-status_t Camera3Device::setConsumerSurface(int streamId, sp<Surface> consumer) {
+status_t Camera3Device::setConsumerSurfaces(int streamId,
+        const std::vector<sp<Surface>>& consumers) {
     ATRACE_CALL();
-    ALOGV("%s: Camera %d: set consumer surface for stream %d", __FUNCTION__, mId, streamId);
+    ALOGV("%s: Camera %s: set consumer surface for stream %d",
+            __FUNCTION__, mId.string(), streamId);
     Mutex::Autolock il(mInterfaceLock);
     Mutex::Autolock l(mLock);
 
-    if (consumer == nullptr) {
-        CLOGE("Null consumer is passed!");
+    if (consumers.size() == 0) {
+        CLOGE("No consumer is passed!");
         return BAD_VALUE;
     }
 
@@ -1772,22 +2013,24 @@
         return idx;
     }
     sp<Camera3OutputStreamInterface> stream = mOutputStreams[idx];
-    status_t res = stream->setConsumer(consumer);
+    status_t res = stream->setConsumers(consumers);
     if (res != OK) {
         CLOGE("Stream %d set consumer failed (error %d %s) ", streamId, res, strerror(-res));
         return res;
     }
 
-    if (!stream->isConfiguring()) {
-        CLOGE("Stream %d was already fully configured.", streamId);
-        return INVALID_OPERATION;
-    }
+    if (stream->isConsumerConfigurationDeferred()) {
+        if (!stream->isConfiguring()) {
+            CLOGE("Stream %d was already fully configured.", streamId);
+            return INVALID_OPERATION;
+        }
 
-    res = stream->finishConfiguration(mHal3Device);
-    if (res != OK) {
-        SET_ERR_L("Can't finish configuring output stream %d: %s (%d)",
-                stream->getId(), strerror(-res), res);
-        return res;
+        res = stream->finishConfiguration();
+        if (res != OK) {
+            SET_ERR_L("Can't finish configuring output stream %d: %s (%d)",
+                   stream->getId(), strerror(-res), res);
+            return res;
+        }
     }
 
     return OK;
@@ -1798,7 +2041,7 @@
  */
 
 sp<Camera3Device::CaptureRequest> Camera3Device::createCaptureRequest(
-        const CameraMetadata &request) {
+        const CameraMetadata &request, const SurfaceMap &surfaceMap) {
     ATRACE_CALL();
     status_t res;
 
@@ -1817,7 +2060,7 @@
         // Lazy completion of stream configuration (allocation/registration)
         // on first use
         if (mInputStream->isConfiguring()) {
-            res = mInputStream->finishConfiguration(mHal3Device);
+            res = mInputStream->finishConfiguration();
             if (res != OK) {
                 SET_ERR_L("Unable to finish configuring input stream %d:"
                         " %s (%d)",
@@ -1853,16 +2096,23 @@
                 mOutputStreams.editValueAt(idx);
 
         // It is illegal to include a deferred consumer output stream into a request
-        if (stream->isConsumerConfigurationDeferred()) {
-            CLOGE("Stream %d hasn't finished configuration yet due to deferred consumer",
-                    stream->getId());
-            return NULL;
+        auto iter = surfaceMap.find(streams.data.i32[i]);
+        if (iter != surfaceMap.end()) {
+            const std::vector<size_t>& surfaces = iter->second;
+            for (const auto& surface : surfaces) {
+                if (stream->isConsumerConfigurationDeferred(surface)) {
+                    CLOGE("Stream %d surface %zu hasn't finished configuration yet "
+                          "due to deferred consumer", stream->getId(), surface);
+                    return NULL;
+                }
+            }
+            newRequest->mOutputSurfaces[i] = surfaces;
         }
 
         // Lazy completion of stream configuration (allocation/registration)
         // on first use
         if (stream->isConfiguring()) {
-            res = stream->finishConfiguration(mHal3Device);
+            res = stream->finishConfiguration();
             if (res != OK) {
                 SET_ERR_L("Unable to finish configuring stream %d: %s (%d)",
                         stream->getId(), strerror(-res), res);
@@ -1921,7 +2171,7 @@
     mNeedConfig = true;
 }
 
-status_t Camera3Device::configureStreamsLocked() {
+status_t Camera3Device::configureStreamsLocked(int operatingMode) {
     ATRACE_CALL();
     status_t res;
 
@@ -1930,6 +2180,21 @@
         return INVALID_OPERATION;
     }
 
+    if (operatingMode < 0) {
+        CLOGE("Invalid operating mode: %d", operatingMode);
+        return BAD_VALUE;
+    }
+
+    bool isConstrainedHighSpeed =
+            static_cast<int>(StreamConfigurationMode::CONSTRAINED_HIGH_SPEED_MODE) ==
+            operatingMode;
+
+    if (mOperatingMode != operatingMode) {
+        mNeedConfig = true;
+        mIsConstrainedHighSpeedConfiguration = isConstrainedHighSpeed;
+        mOperatingMode = operatingMode;
+    }
+
     if (!mNeedConfig) {
         ALOGV("%s: Skipping config, no stream changes", __FUNCTION__);
         return OK;
@@ -1945,12 +2210,10 @@
     }
 
     // Start configuring the streams
-    ALOGV("%s: Camera %d: Starting stream configuration", __FUNCTION__, mId);
+    ALOGV("%s: Camera %s: Starting stream configuration", __FUNCTION__, mId.string());
 
     camera3_stream_configuration config;
-    config.operation_mode = mIsConstrainedHighSpeedConfiguration ?
-            CAMERA3_STREAM_CONFIGURATION_CONSTRAINED_HIGH_SPEED_MODE :
-            CAMERA3_STREAM_CONFIGURATION_NORMAL_MODE;
+    config.operation_mode = mOperatingMode;
     config.num_streams = (mInputStream != NULL) + mOutputStreams.size();
 
     Vector<camera3_stream_t*> streams;
@@ -1991,9 +2254,8 @@
 
     // Do the HAL configuration; will potentially touch stream
     // max_buffers, usage, priv fields.
-    ATRACE_BEGIN("camera3->configure_streams");
-    res = mHal3Device->ops->configure_streams(mHal3Device, &config);
-    ATRACE_END();
+
+    res = mInterface->configureStreams(&config);
 
     if (res == BAD_VALUE) {
         // HAL rejected this set of streams as unsupported, clean up config
@@ -2014,7 +2276,7 @@
     // faster
 
     if (mInputStream != NULL && mInputStream->isConfiguring()) {
-        res = mInputStream->finishConfiguration(mHal3Device);
+        res = mInputStream->finishConfiguration();
         if (res != OK) {
             CLOGE("Can't finish configuring input stream %d: %s (%d)",
                     mInputStream->getId(), strerror(-res), res);
@@ -2027,7 +2289,7 @@
         sp<Camera3OutputStreamInterface> outputStream =
             mOutputStreams.editValueAt(i);
         if (outputStream->isConfiguring() && !outputStream->isConsumerConfigurationDeferred()) {
-            res = outputStream->finishConfiguration(mHal3Device);
+            res = outputStream->finishConfiguration();
             if (res != OK) {
                 CLOGE("Can't finish configuring output stream %d: %s (%d)",
                         outputStream->getId(), strerror(-res), res);
@@ -2048,7 +2310,7 @@
         // Boost priority of request thread to SCHED_FIFO.
         pid_t requestThreadTid = mRequestThread->getTid();
         res = requestPriority(getpid(), requestThreadTid,
-                kRequestThreadPriority, /*asynchronous*/ false);
+                kRequestThreadPriority, /*isForApp*/ false, /*asynchronous*/ false);
         if (res != OK) {
             ALOGW("Can't set realtime priority for request processing thread: %s (%d)",
                     strerror(-res), res);
@@ -2064,7 +2326,7 @@
     internalUpdateStatusLocked((mDummyStreamId == NO_STREAM) ?
             STATUS_CONFIGURED : STATUS_UNCONFIGURED);
 
-    ALOGV("%s: Camera %d: Stream configuration complete", __FUNCTION__, mId);
+    ALOGV("%s: Camera %s: Stream configuration complete", __FUNCTION__, mId.string());
 
     // tear down the deleted streams after configure streams.
     mDeletedStreams.clear();
@@ -2079,12 +2341,12 @@
     if (mDummyStreamId != NO_STREAM) {
         // Should never be adding a second dummy stream when one is already
         // active
-        SET_ERR_L("%s: Camera %d: A dummy stream already exists!",
-                __FUNCTION__, mId);
+        SET_ERR_L("%s: Camera %s: A dummy stream already exists!",
+                __FUNCTION__, mId.string());
         return INVALID_OPERATION;
     }
 
-    ALOGV("%s: Camera %d: Adding a dummy stream", __FUNCTION__, mId);
+    ALOGV("%s: Camera %s: Adding a dummy stream", __FUNCTION__, mId.string());
 
     sp<Camera3OutputStreamInterface> dummyStream =
             new Camera3DummyStream(mNextStreamId);
@@ -2108,7 +2370,7 @@
     if (mDummyStreamId == NO_STREAM) return OK;
     if (mOutputStreams.size() == 1) return OK;
 
-    ALOGV("%s: Camera %d: Removing the dummy stream", __FUNCTION__, mId);
+    ALOGV("%s: Camera %s: Removing the dummy stream", __FUNCTION__, mId.string());
 
     // Ok, have a dummy stream and there's at least one other output stream,
     // so remove the dummy
@@ -2162,7 +2424,7 @@
 void Camera3Device::setErrorStateLockedV(const char *fmt, va_list args) {
     // Print out all error messages to log
     String8 errorCause = String8::formatV(fmt, args);
-    ALOGE("Camera %d: %s", mId, errorCause.string());
+    ALOGE("Camera %s: %s", mId.string(), errorCause.string());
 
     // But only do error state transition steps for the first error
     if (mStatus == STATUS_ERROR || mStatus == STATUS_UNINITIALIZED) return;
@@ -2635,8 +2897,8 @@
                 Camera3Stream::cast(msg.error_stream);
         streamId = stream->getId();
     }
-    ALOGV("Camera %d: %s: HAL error, frame %d, stream %d: %d",
-            mId, __FUNCTION__, msg.frame_number,
+    ALOGV("Camera %s: %s: HAL error, frame %d, stream %d: %d",
+            mId.string(), __FUNCTION__, msg.frame_number,
             streamId, msg.error_code);
 
     CaptureResultExtras resultExtras;
@@ -2657,8 +2919,8 @@
                     resultExtras = r.resultExtras;
                 } else {
                     resultExtras.frameNumber = msg.frame_number;
-                    ALOGE("Camera %d: %s: cannot find in-flight request on "
-                            "frame %" PRId64 " error", mId, __FUNCTION__,
+                    ALOGE("Camera %s: %s: cannot find in-flight request on "
+                            "frame %" PRId64 " error", mId.string(), __FUNCTION__,
                             resultExtras.frameNumber);
                 }
             }
@@ -2666,7 +2928,7 @@
             if (listener != NULL) {
                 listener->notifyError(errorCode, resultExtras);
             } else {
-                ALOGE("Camera %d: %s: no listener available", mId, __FUNCTION__);
+                ALOGE("Camera %s: %s: no listener available", mId.string(), __FUNCTION__);
             }
             break;
         default:
@@ -2711,8 +2973,8 @@
                 }
             }
 
-            ALOGVV("Camera %d: %s: Shutter fired for frame %d (id %d) at %" PRId64,
-                    mId, __FUNCTION__,
+            ALOGVV("Camera %s: %s: Shutter fired for frame %d (id %d) at %" PRId64,
+                    mId.string(), __FUNCTION__,
                     msg.frame_number, r.resultExtras.requestId, msg.timestamp);
             // Call listener, if any
             if (listener != NULL) {
@@ -2758,17 +3020,411 @@
 }
 
 /**
+ * HalInterface inner class methods
+ */
+
+Camera3Device::HalInterface::HalInterface(camera3_device_t *device) :
+        mHal3Device(device) {}
+
+Camera3Device::HalInterface::HalInterface(sp<ICameraDeviceSession> &session) :
+        mHal3Device(nullptr),
+        mHidlSession(session) {}
+
+Camera3Device::HalInterface::HalInterface() :
+        mHal3Device(nullptr) {}
+
+Camera3Device::HalInterface::HalInterface(const HalInterface& other) :
+        mHal3Device(other.mHal3Device), mHidlSession(other.mHidlSession) {}
+
+bool Camera3Device::HalInterface::valid() {
+    return (mHal3Device != nullptr) || (mHidlSession != nullptr);
+}
+
+void Camera3Device::HalInterface::clear() {
+    mHal3Device = nullptr;
+    mHidlSession.clear();
+}
+
+status_t Camera3Device::HalInterface::constructDefaultRequestSettings(
+        camera3_request_template_t templateId,
+        /*out*/ camera_metadata_t **requestTemplate) {
+    ATRACE_NAME("CameraHal::constructDefaultRequestSettings");
+    if (!valid()) return INVALID_OPERATION;
+    status_t res = OK;
+
+    if (mHal3Device != nullptr) {
+        const camera_metadata *r;
+        r = mHal3Device->ops->construct_default_request_settings(
+                mHal3Device, templateId);
+        if (r == nullptr) return BAD_VALUE;
+        *requestTemplate = clone_camera_metadata(r);
+        if (requestTemplate == nullptr) {
+            ALOGE("%s: Unable to clone camera metadata received from HAL",
+                    __FUNCTION__);
+            return INVALID_OPERATION;
+        }
+    } else {
+        common::V1_0::Status status;
+        RequestTemplate id;
+        switch (templateId) {
+            case CAMERA3_TEMPLATE_PREVIEW:
+                id = RequestTemplate::PREVIEW;
+                break;
+            case CAMERA3_TEMPLATE_STILL_CAPTURE:
+                id = RequestTemplate::STILL_CAPTURE;
+                break;
+            case CAMERA3_TEMPLATE_VIDEO_RECORD:
+                id = RequestTemplate::VIDEO_RECORD;
+                break;
+            case CAMERA3_TEMPLATE_VIDEO_SNAPSHOT:
+                id = RequestTemplate::VIDEO_SNAPSHOT;
+                break;
+            case CAMERA3_TEMPLATE_ZERO_SHUTTER_LAG:
+                id = RequestTemplate::ZERO_SHUTTER_LAG;
+                break;
+            case CAMERA3_TEMPLATE_MANUAL:
+                id = RequestTemplate::MANUAL;
+                break;
+            default:
+                // Unknown template ID
+                return BAD_VALUE;
+        }
+        mHidlSession->constructDefaultRequestSettings(id,
+                [&status, &requestTemplate]
+                (common::V1_0::Status s, const device::V3_2::CameraMetadata& request) {
+                    status = s;
+                    if (status == common::V1_0::Status::OK) {
+                        const camera_metadata *r =
+                                reinterpret_cast<const camera_metadata_t*>(request.data());
+                        size_t expectedSize = request.size();
+                        int ret = validate_camera_metadata_structure(r, &expectedSize);
+                        if (ret == OK) {
+                            *requestTemplate = clone_camera_metadata(r);
+                            if (*requestTemplate == nullptr) {
+                                ALOGE("%s: Unable to clone camera metadata received from HAL",
+                                        __FUNCTION__);
+                                status = common::V1_0::Status::INTERNAL_ERROR;
+                            }
+                        } else {
+                            ALOGE("%s: Malformed camera metadata received from HAL", __FUNCTION__);
+                            status = common::V1_0::Status::INTERNAL_ERROR;
+                        }
+                    }
+                });
+        res = CameraProviderManager::mapToStatusT(status);
+    }
+    return res;
+}
+
+status_t Camera3Device::HalInterface::configureStreams(camera3_stream_configuration *config) {
+    ATRACE_NAME("CameraHal::configureStreams");
+    if (!valid()) return INVALID_OPERATION;
+    status_t res = OK;
+
+    if (mHal3Device != nullptr) {
+        res = mHal3Device->ops->configure_streams(mHal3Device, config);
+    } else {
+        // Convert stream config to HIDL
+        std::set<int> activeStreams;
+        StreamConfiguration requestedConfiguration;
+        requestedConfiguration.streams.resize(config->num_streams);
+        for (size_t i = 0; i < config->num_streams; i++) {
+            Stream &dst = requestedConfiguration.streams[i];
+            camera3_stream_t *src = config->streams[i];
+
+            int streamId = Camera3Stream::cast(src)->getId();
+            StreamType streamType;
+            switch (src->stream_type) {
+                case CAMERA3_STREAM_OUTPUT:
+                    streamType = StreamType::OUTPUT;
+                    break;
+                case CAMERA3_STREAM_INPUT:
+                    streamType = StreamType::INPUT;
+                    break;
+                default:
+                    ALOGE("%s: Stream %d: Unsupported stream type %d",
+                            __FUNCTION__, streamId, config->streams[i]->stream_type);
+                    return BAD_VALUE;
+            }
+            dst.id = streamId;
+            dst.streamType = streamType;
+            dst.width = src->width;
+            dst.height = src->height;
+            dst.format = mapToPixelFormat(src->format);
+            dst.usage = mapToConsumerUsage(src->usage);
+            dst.dataSpace = mapToHidlDataspace(src->data_space);
+            dst.rotation = mapToStreamRotation((camera3_stream_rotation_t) src->rotation);
+
+            activeStreams.insert(streamId);
+            // Create Buffer ID map if necessary
+            if (mBufferIdMaps.count(streamId) == 0) {
+                mBufferIdMaps.emplace(streamId, BufferIdMap{});
+            }
+        }
+        // remove BufferIdMap for deleted streams
+        for(auto it = mBufferIdMaps.begin(); it != mBufferIdMaps.end();) {
+            int streamId = it->first;
+            bool active = activeStreams.count(streamId) > 0;
+            if (!active) {
+                it = mBufferIdMaps.erase(it);
+            } else {
+                ++it;
+            }
+        }
+
+        res = mapToStreamConfigurationMode(
+                (camera3_stream_configuration_mode_t) config->operation_mode,
+                /*out*/ &requestedConfiguration.operationMode);
+        if (res != OK) {
+            return res;
+        }
+
+        // Invoke configureStreams
+
+        HalStreamConfiguration finalConfiguration;
+        common::V1_0::Status status;
+        mHidlSession->configureStreams(requestedConfiguration,
+                [&status, &finalConfiguration]
+                (common::V1_0::Status s, const HalStreamConfiguration& halConfiguration) {
+                    finalConfiguration = halConfiguration;
+                    status = s;
+                });
+        if (status != common::V1_0::Status::OK ) {
+            return CameraProviderManager::mapToStatusT(status);
+        }
+
+        // And convert output stream configuration from HIDL
+
+        for (size_t i = 0; i < config->num_streams; i++) {
+            camera3_stream_t *dst = config->streams[i];
+            int streamId = Camera3Stream::cast(dst)->getId();
+
+            // Start scan at i, with the assumption that the stream order matches
+            size_t realIdx = i;
+            bool found = false;
+            for (size_t idx = 0; idx < finalConfiguration.streams.size(); idx++) {
+                if (finalConfiguration.streams[realIdx].id == streamId) {
+                    found = true;
+                    break;
+                }
+                realIdx = (realIdx >= finalConfiguration.streams.size()) ? 0 : realIdx + 1;
+            }
+            if (!found) {
+                ALOGE("%s: Stream %d not found in stream configuration response from HAL",
+                        __FUNCTION__, streamId);
+                return INVALID_OPERATION;
+            }
+            HalStream &src = finalConfiguration.streams[realIdx];
+
+            int overrideFormat = mapToFrameworkFormat(src.overrideFormat);
+            if (dst->format != HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED) {
+                if (dst->format != overrideFormat) {
+                    ALOGE("%s: Stream %d: Format override not allowed for format 0x%x", __FUNCTION__,
+                            streamId, dst->format);
+                }
+            } else {
+                // Override allowed with IMPLEMENTATION_DEFINED
+                dst->format = overrideFormat;
+            }
+
+            if (dst->stream_type == CAMERA3_STREAM_INPUT) {
+                if (src.producerUsage != 0) {
+                    ALOGE("%s: Stream %d: INPUT streams must have 0 for producer usage",
+                            __FUNCTION__, streamId);
+                    return INVALID_OPERATION;
+                }
+                dst->usage = mapConsumerToFrameworkUsage(src.consumerUsage);
+            } else {
+                // OUTPUT
+                if (src.consumerUsage != 0) {
+                    ALOGE("%s: Stream %d: OUTPUT streams must have 0 for consumer usage",
+                            __FUNCTION__, streamId);
+                    return INVALID_OPERATION;
+                }
+                dst->usage = mapProducerToFrameworkUsage(src.producerUsage);
+            }
+            dst->max_buffers = src.maxBuffers;
+        }
+    }
+    return res;
+}
+
+status_t Camera3Device::HalInterface::processCaptureRequest(
+        camera3_capture_request_t *request) {
+    ATRACE_NAME("CameraHal::processCaptureRequest");
+    if (!valid()) return INVALID_OPERATION;
+    status_t res = OK;
+
+    if (mHal3Device != nullptr) {
+        res = mHal3Device->ops->process_capture_request(mHal3Device, request);
+    } else {
+        device::V3_2::CaptureRequest captureRequest;
+        captureRequest.frameNumber = request->frame_number;
+        std::vector<native_handle_t*> handlesCreated;
+        // A null request settings maps to a size-0 CameraMetadata
+        if (request->settings != nullptr) {
+            captureRequest.settings.setToExternal(
+                    reinterpret_cast<uint8_t*>(const_cast<camera_metadata_t*>(request->settings)),
+                    get_camera_metadata_size(request->settings));
+        }
+
+        {
+            std::lock_guard<std::mutex> lock(mInflightLock);
+            if (request->input_buffer != nullptr) {
+                int32_t streamId = Camera3Stream::cast(request->input_buffer->stream)->getId();
+                buffer_handle_t buf = *(request->input_buffer->buffer);
+                auto pair = getBufferId(buf, streamId);
+                bool isNewBuffer = pair.first;
+                uint64_t bufferId = pair.second;
+                captureRequest.inputBuffer.streamId = streamId;
+                captureRequest.inputBuffer.bufferId = bufferId;
+                captureRequest.inputBuffer.buffer = (isNewBuffer) ? buf : nullptr;
+                captureRequest.inputBuffer.status = BufferStatus::OK;
+                native_handle_t *acquireFence = nullptr;
+                if (request->input_buffer->acquire_fence != -1) {
+                    acquireFence = native_handle_create(1,0);
+                    acquireFence->data[0] = request->input_buffer->acquire_fence;
+                    handlesCreated.push_back(acquireFence);
+                }
+                captureRequest.inputBuffer.acquireFence = acquireFence;
+                captureRequest.inputBuffer.releaseFence = nullptr;
+
+                pushInflightBufferLocked(captureRequest.frameNumber, streamId,
+                        request->input_buffer->buffer,
+                        request->input_buffer->acquire_fence);
+            } else {
+                captureRequest.inputBuffer.streamId = -1;
+                captureRequest.inputBuffer.bufferId = BUFFER_ID_NO_BUFFER;
+            }
+
+            captureRequest.outputBuffers.resize(request->num_output_buffers);
+            for (size_t i = 0; i < request->num_output_buffers; i++) {
+                const camera3_stream_buffer_t *src = request->output_buffers + i;
+                StreamBuffer &dst = captureRequest.outputBuffers[i];
+                int32_t streamId = Camera3Stream::cast(src->stream)->getId();
+                buffer_handle_t buf = *(src->buffer);
+                auto pair = getBufferId(buf, streamId);
+                bool isNewBuffer = pair.first;
+                dst.streamId = streamId;
+                dst.bufferId = pair.second;
+                dst.buffer = isNewBuffer ? buf : nullptr;
+                dst.status = BufferStatus::OK;
+                native_handle_t *acquireFence = nullptr;
+                if (src->acquire_fence != -1) {
+                    acquireFence = native_handle_create(1,0);
+                    acquireFence->data[0] = src->acquire_fence;
+                    handlesCreated.push_back(acquireFence);
+                }
+                dst.acquireFence = acquireFence;
+                dst.releaseFence = nullptr;
+
+                pushInflightBufferLocked(captureRequest.frameNumber, streamId,
+                        src->buffer, src->acquire_fence);
+            }
+        }
+        common::V1_0::Status status = mHidlSession->processCaptureRequest(captureRequest);
+
+        for (auto& handle : handlesCreated) {
+            native_handle_delete(handle);
+        }
+        res = CameraProviderManager::mapToStatusT(status);
+    }
+    return res;
+}
+
+status_t Camera3Device::HalInterface::flush() {
+    ATRACE_NAME("CameraHal::flush");
+    if (!valid()) return INVALID_OPERATION;
+    status_t res = OK;
+
+    if (mHal3Device != nullptr) {
+        res = mHal3Device->ops->flush(mHal3Device);
+    } else {
+        res = CameraProviderManager::mapToStatusT(mHidlSession->flush());
+    }
+    return res;
+}
+
+status_t Camera3Device::HalInterface::dump(int fd) {
+    ATRACE_NAME("CameraHal::dump");
+    if (!valid()) return INVALID_OPERATION;
+    status_t res = OK;
+
+    if (mHal3Device != nullptr) {
+        mHal3Device->ops->dump(mHal3Device, fd);
+    } else {
+        // Handled by CameraProviderManager::dump
+    }
+    return res;
+}
+
+status_t Camera3Device::HalInterface::close() {
+    ATRACE_NAME("CameraHal::close()");
+    if (!valid()) return INVALID_OPERATION;
+    status_t res = OK;
+
+    if (mHal3Device != nullptr) {
+        mHal3Device->common.close(&mHal3Device->common);
+    } else {
+        mHidlSession->close();
+    }
+    return res;
+}
+
+status_t Camera3Device::HalInterface::pushInflightBufferLocked(
+        int32_t frameNumber, int32_t streamId, buffer_handle_t *buffer, int acquireFence) {
+    uint64_t key = static_cast<uint64_t>(frameNumber) << 32 | static_cast<uint64_t>(streamId);
+    auto pair = std::make_pair(buffer, acquireFence);
+    mInflightBufferMap[key] = pair;
+    return OK;
+}
+
+status_t Camera3Device::HalInterface::popInflightBuffer(
+        int32_t frameNumber, int32_t streamId,
+        /*out*/ buffer_handle_t **buffer) {
+    std::lock_guard<std::mutex> lock(mInflightLock);
+
+    uint64_t key = static_cast<uint64_t>(frameNumber) << 32 | static_cast<uint64_t>(streamId);
+    auto it = mInflightBufferMap.find(key);
+    if (it == mInflightBufferMap.end()) return NAME_NOT_FOUND;
+    auto pair = it->second;
+    *buffer = pair.first;
+    int acquireFence = pair.second;
+    if (acquireFence > 0) {
+        ::close(acquireFence);
+    }
+    mInflightBufferMap.erase(it);
+    return OK;
+}
+
+std::pair<bool, uint64_t> Camera3Device::HalInterface::getBufferId(
+        const buffer_handle_t& buf, int streamId) {
+    std::lock_guard<std::mutex> lock(mBufferIdMapLock);
+
+    BufferIdMap& bIdMap = mBufferIdMaps.at(streamId);
+    auto it = bIdMap.find(buf);
+    if (it == bIdMap.end()) {
+        bIdMap[buf] = mNextBufferId++;
+        return std::make_pair(true, mNextBufferId - 1);
+    } else {
+        return std::make_pair(false, it->second);
+    }
+}
+
+/**
  * RequestThread inner class methods
  */
 
 Camera3Device::RequestThread::RequestThread(wp<Camera3Device> parent,
         sp<StatusTracker> statusTracker,
-        camera3_device_t *hal3Device,
+        HalInterface* interface,
+        uint32_t deviceVersion,
         bool aeLockAvailable) :
         Thread(/*canCallJava*/false),
         mParent(parent),
         mStatusTracker(statusTracker),
-        mHal3Device(hal3Device),
+        mInterface(interface),
+        mDeviceVersion(deviceVersion),
         mListener(nullptr),
         mId(getId(parent)),
         mReconfigured(false),
@@ -2785,6 +3441,8 @@
     mStatusId = statusTracker->addComponent();
 }
 
+Camera3Device::RequestThread::~RequestThread() {}
+
 void Camera3Device::RequestThread::setNotificationListener(
         wp<NotificationListener> listener) {
     Mutex::Autolock l(mRequestLock);
@@ -2839,10 +3497,11 @@
     return OK;
 }
 
-int Camera3Device::RequestThread::getId(const wp<Camera3Device> &device) {
+const String8& Camera3Device::RequestThread::getId(const wp<Camera3Device> &device) {
+    static String8 deadId("<DeadDevice>");
     sp<Camera3Device> d = device.promote();
-    if (d != NULL) return d->mId;
-    return 0;
+    if (d != nullptr) return d->mId;
+    return deadId;
 }
 
 status_t Camera3Device::RequestThread::queueTriggerLocked(
@@ -2972,8 +3631,8 @@
     ATRACE_CALL();
     Mutex::Autolock l(mFlushLock);
 
-    if (mHal3Device->common.version >= CAMERA_DEVICE_API_VERSION_3_1) {
-        return mHal3Device->ops->flush(mHal3Device);
+    if (mDeviceVersion >= CAMERA_DEVICE_API_VERSION_3_1) {
+        return mInterface->flush();
     }
 
     return -ENOTSUP;
@@ -3021,7 +3680,7 @@
     request->mAeTriggerCancelOverride.applyAeLock = false;
     request->mAeTriggerCancelOverride.applyAePrecaptureTrigger = false;
 
-    if (mHal3Device->common.version > CAMERA_DEVICE_API_VERSION_3_2) {
+    if (mDeviceVersion > CAMERA_DEVICE_API_VERSION_3_2) {
         return;
     }
 
@@ -3161,9 +3820,7 @@
     for (auto& nextRequest : mNextRequests) {
         // Submit request and block until ready for next one
         ATRACE_ASYNC_BEGIN("frame capture", nextRequest.halRequest.frame_number);
-        ATRACE_BEGIN("camera3->process_capture_request");
-        res = mHal3Device->ops->process_capture_request(mHal3Device, &nextRequest.halRequest);
-        ATRACE_END();
+        res = mInterface->processCaptureRequest(&nextRequest.halRequest);
 
         if (res != OK) {
             // Should only get a failure here for malformed requests or device-level
@@ -3326,7 +3983,8 @@
                 }
             }
 
-            res = outputStream->getBuffer(&outputBuffers->editItemAt(i));
+            res = outputStream->getBuffer(&outputBuffers->editItemAt(i),
+                    captureRequest->mOutputSurfaces[i]);
             if (res != OK) {
                 // Can't get output buffer from gralloc queue - this could be due to
                 // abandoned queue or other consumer misbehavior, so not a fatal
@@ -3337,6 +3995,7 @@
                 return TIMED_OUT;
             }
             halRequest->num_output_buffers++;
+
         }
         totalNumBuffers += halRequest->num_output_buffers;
 
@@ -3553,6 +4212,12 @@
                 mRequestQueue.begin();
         nextRequest = *firstRequest;
         mRequestQueue.erase(firstRequest);
+        if (mRequestQueue.empty() && !nextRequest->mRepeating) {
+            sp<NotificationListener> listener = mListener.promote();
+            if (listener != NULL) {
+                listener->notifyRequestQueueEmpty();
+            }
+        }
     }
 
     // In case we've been unpaused by setPaused clearing mDoPause, need to
diff --git a/services/camera/libcameraservice/device3/Camera3Device.h b/services/camera/libcameraservice/device3/Camera3Device.h
index 87c43f3..998cc0b 100644
--- a/services/camera/libcameraservice/device3/Camera3Device.h
+++ b/services/camera/libcameraservice/device3/Camera3Device.h
@@ -17,6 +17,9 @@
 #ifndef ANDROID_SERVERS_CAMERA3DEVICE_H
 #define ANDROID_SERVERS_CAMERA3DEVICE_H
 
+#include <utility>
+#include <unordered_map>
+
 #include <utils/Condition.h>
 #include <utils/Errors.h>
 #include <utils/List.h>
@@ -24,7 +27,12 @@
 #include <utils/Thread.h>
 #include <utils/KeyedVector.h>
 #include <utils/Timers.h>
+
+#include <android/hardware/camera/device/3.2/ICameraDevice.h>
+#include <android/hardware/camera/device/3.2/ICameraDeviceSession.h>
+#include <android/hardware/camera/device/3.2/ICameraDeviceCallback.h>
 #include <hardware/camera3.h>
+
 #include <camera/CaptureResult.h>
 
 #include "common/CameraDeviceBase.h"
@@ -55,17 +63,18 @@
 class Camera3OutputStreamInterface;
 class Camera3StreamInterface;
 
-}
+} // namespace camera3
 
 /**
  * CameraDevice for HAL devices with version CAMERA_DEVICE_API_VERSION_3_0 or higher.
  */
 class Camera3Device :
             public CameraDeviceBase,
+            virtual public hardware::camera::device::V3_2::ICameraDeviceCallback,
             private camera3_callback_ops {
   public:
 
-    explicit Camera3Device(int id);
+    explicit Camera3Device(const String8& id);
 
     virtual ~Camera3Device();
 
@@ -73,91 +82,96 @@
      * CameraDeviceBase interface
      */
 
-    virtual int      getId() const;
+    const String8& getId() const override;
 
     // Transitions to idle state on success.
-    virtual status_t initialize(CameraModule *module);
-    virtual status_t disconnect();
-    virtual status_t dump(int fd, const Vector<String16> &args);
-    virtual const CameraMetadata& info() const;
+    status_t initialize(CameraModule *module) override;
+    status_t initialize(sp<CameraProviderManager> manager) override;
+    status_t disconnect() override;
+    status_t dump(int fd, const Vector<String16> &args) override;
+    const CameraMetadata& info() const override;
 
     // Capture and setStreamingRequest will configure streams if currently in
     // idle state
-    virtual status_t capture(CameraMetadata &request, int64_t *lastFrameNumber = NULL);
-    virtual status_t captureList(const List<const CameraMetadata> &requests,
-                                 int64_t *lastFrameNumber = NULL);
-    virtual status_t setStreamingRequest(const CameraMetadata &request,
-                                         int64_t *lastFrameNumber = NULL);
-    virtual status_t setStreamingRequestList(const List<const CameraMetadata> &requests,
-                                             int64_t *lastFrameNumber = NULL);
-    virtual status_t clearStreamingRequest(int64_t *lastFrameNumber = NULL);
+    status_t capture(CameraMetadata &request, int64_t *lastFrameNumber = NULL) override;
+    status_t captureList(const List<const CameraMetadata> &requests,
+            const std::list<const SurfaceMap> &surfaceMaps,
+            int64_t *lastFrameNumber = NULL) override;
+    status_t setStreamingRequest(const CameraMetadata &request,
+            int64_t *lastFrameNumber = NULL) override;
+    status_t setStreamingRequestList(const List<const CameraMetadata> &requests,
+            const std::list<const SurfaceMap> &surfaceMaps,
+            int64_t *lastFrameNumber = NULL) override;
+    status_t clearStreamingRequest(int64_t *lastFrameNumber = NULL) override;
 
-    virtual status_t waitUntilRequestReceived(int32_t requestId, nsecs_t timeout);
+    status_t waitUntilRequestReceived(int32_t requestId, nsecs_t timeout) override;
 
     // Actual stream creation/deletion is delayed until first request is submitted
     // If adding streams while actively capturing, will pause device before adding
     // stream, reconfiguring device, and unpausing. If the client create a stream
-    // with nullptr consumer surface, the client must then call setConsumer()
+    // with nullptr consumer surface, the client must then call setConsumers()
     // and finish the stream configuration before starting output streaming.
-    virtual status_t createStream(sp<Surface> consumer,
+    status_t createStream(sp<Surface> consumer,
             uint32_t width, uint32_t height, int format,
             android_dataspace dataSpace, camera3_stream_rotation_t rotation, int *id,
             int streamSetId = camera3::CAMERA3_STREAM_SET_ID_INVALID,
-            uint32_t consumerUsage = 0);
-    virtual status_t createInputStream(
+            bool isShared = false, uint32_t consumerUsage = 0) override;
+    status_t createStream(const std::vector<sp<Surface>>& consumers,
+            bool hasDeferredConsumer, uint32_t width, uint32_t height, int format,
+            android_dataspace dataSpace, camera3_stream_rotation_t rotation, int *id,
+            int streamSetId = camera3::CAMERA3_STREAM_SET_ID_INVALID,
+            bool isShared = false, uint32_t consumerUsage = 0) override;
+
+    status_t createInputStream(
             uint32_t width, uint32_t height, int format,
-            int *id);
-    virtual status_t createZslStream(
-            uint32_t width, uint32_t height,
-            int depth,
-            /*out*/
-            int *id,
-            sp<camera3::Camera3ZslStream>* zslStream);
-    virtual status_t createReprocessStreamFromStream(int outputId, int *id);
+            int *id) override;
+    status_t createReprocessStreamFromStream(int outputId, int *id) override;
 
-    virtual status_t getStreamInfo(int id,
+    status_t getStreamInfo(int id,
             uint32_t *width, uint32_t *height,
-            uint32_t *format, android_dataspace *dataSpace);
-    virtual status_t setStreamTransform(int id, int transform);
+            uint32_t *format, android_dataspace *dataSpace) override;
+    status_t setStreamTransform(int id, int transform) override;
 
-    virtual status_t deleteStream(int id);
-    virtual status_t deleteReprocessStream(int id);
+    status_t deleteStream(int id) override;
+    status_t deleteReprocessStream(int id) override;
 
-    virtual status_t configureStreams(bool isConstraiedHighSpeed = false);
-    virtual status_t getInputBufferProducer(
-            sp<IGraphicBufferProducer> *producer);
+    status_t configureStreams(int operatingMode =
+            static_cast<int>(hardware::camera::device::V3_2::StreamConfigurationMode::NORMAL_MODE))
+            override;
+    status_t getInputBufferProducer(
+            sp<IGraphicBufferProducer> *producer) override;
 
-    virtual status_t createDefaultRequest(int templateId, CameraMetadata *request);
+    status_t createDefaultRequest(int templateId, CameraMetadata *request) override;
 
     // Transitions to the idle state on success
-    virtual status_t waitUntilDrained();
+    status_t waitUntilDrained() override;
 
-    virtual status_t setNotifyCallback(wp<NotificationListener> listener);
-    virtual bool     willNotify3A();
-    virtual status_t waitForNextFrame(nsecs_t timeout);
-    virtual status_t getNextResult(CaptureResult *frame);
+    status_t setNotifyCallback(wp<NotificationListener> listener) override;
+    bool     willNotify3A() override;
+    status_t waitForNextFrame(nsecs_t timeout) override;
+    status_t getNextResult(CaptureResult *frame) override;
 
-    virtual status_t triggerAutofocus(uint32_t id);
-    virtual status_t triggerCancelAutofocus(uint32_t id);
-    virtual status_t triggerPrecaptureMetering(uint32_t id);
+    status_t triggerAutofocus(uint32_t id) override;
+    status_t triggerCancelAutofocus(uint32_t id) override;
+    status_t triggerPrecaptureMetering(uint32_t id) override;
 
-    virtual status_t pushReprocessBuffer(int reprocessStreamId,
-            buffer_handle_t *buffer, wp<BufferReleasedListener> listener);
+    status_t pushReprocessBuffer(int reprocessStreamId,
+            buffer_handle_t *buffer, wp<BufferReleasedListener> listener) override;
 
-    virtual status_t flush(int64_t *lastFrameNumber = NULL);
+    status_t flush(int64_t *lastFrameNumber = NULL) override;
 
-    virtual status_t prepare(int streamId);
+    status_t prepare(int streamId) override;
 
-    virtual status_t tearDown(int streamId);
+    status_t tearDown(int streamId) override;
 
-    virtual status_t addBufferListenerForStream(int streamId,
-            wp<camera3::Camera3StreamBufferListener> listener);
+    status_t addBufferListenerForStream(int streamId,
+            wp<camera3::Camera3StreamBufferListener> listener) override;
 
-    virtual status_t prepare(int maxCount, int streamId);
+    status_t prepare(int maxCount, int streamId) override;
 
-    virtual uint32_t getDeviceVersion();
+    uint32_t getDeviceVersion() override;
 
-    virtual ssize_t getJpegBufferSize(uint32_t width, uint32_t height) const;
+    ssize_t getJpegBufferSize(uint32_t width, uint32_t height) const override;
     ssize_t getPointCloudBufferSize() const;
     ssize_t getRawOpaqueBufferSize(int32_t width, int32_t height) const;
 
@@ -165,10 +179,10 @@
     void             notifyStatus(bool idle); // updates from StatusTracker
 
     /**
-     * Set the deferred consumer surface to the output stream and finish the deferred
+     * Set the deferred consumer surfaces to the output stream and finish the deferred
      * consumer configuration.
      */
-    virtual status_t setConsumerSurface(int streamId, sp<Surface> consumer);
+    status_t setConsumerSurfaces(int streamId, const std::vector<sp<Surface>>& consumers) override;
 
   private:
     static const size_t        kDumpLockAttempts  = 10;
@@ -198,14 +212,111 @@
     Mutex                      mLock;
 
     // Camera device ID
-    const int                  mId;
+    const String8              mId;
+
+    // Current stream configuration mode;
+    int                        mOperatingMode;
+    // Constant to use for no set operating mode
+    static const int           NO_MODE = -1;
 
     // Flag indicating is the current active stream configuration is constrained high speed.
     bool                       mIsConstrainedHighSpeedConfiguration;
 
     /**** Scope for mLock ****/
 
-    camera3_device_t          *mHal3Device;
+    /**
+     * Adapter for legacy HAL / HIDL HAL interface calls; calls either into legacy HALv3 or the
+     * HIDL HALv3 interfaces.
+     */
+    class HalInterface {
+      public:
+        HalInterface(camera3_device_t *device);
+        HalInterface(sp<hardware::camera::device::V3_2::ICameraDeviceSession> &session);
+        HalInterface(const HalInterface &other);
+        HalInterface();
+
+        // Returns true if constructed with a valid device or session, and not yet cleared
+        bool valid();
+
+        // Reset this HalInterface object (does not call close())
+        void clear();
+
+        // Calls into the HAL interface
+
+        // Caller takes ownership of requestTemplate
+        status_t constructDefaultRequestSettings(camera3_request_template_t templateId,
+                /*out*/ camera_metadata_t **requestTemplate);
+        status_t configureStreams(/*inout*/ camera3_stream_configuration *config);
+        status_t processCaptureRequest(camera3_capture_request_t *request);
+        status_t flush();
+        status_t dump(int fd);
+        status_t close();
+
+        // Find a buffer_handle_t based on frame number and stream ID
+        status_t popInflightBuffer(int32_t frameNumber, int32_t streamId,
+                /*out*/ buffer_handle_t **buffer);
+
+      private:
+        camera3_device_t *mHal3Device;
+        sp<hardware::camera::device::V3_2::ICameraDeviceSession> mHidlSession;
+
+        std::mutex mInflightLock;
+
+        status_t pushInflightBufferLocked(int32_t frameNumber, int32_t streamId,
+                buffer_handle_t *buffer, int acquireFence);
+        // Cache of buffer handles keyed off (frameNumber << 32 | streamId)
+        // value is a pair of (buffer_handle_t*, acquire_fence FD)
+        std::unordered_map<uint64_t, std::pair<buffer_handle_t*, int>> mInflightBufferMap;
+
+        struct BufferHasher {
+            size_t operator()(const buffer_handle_t& buf) const {
+                if (buf == nullptr)
+                    return 0;
+
+                size_t result = 1;
+                result = 31 * result + buf->numFds;
+                result = 31 * result + buf->numInts;
+                int length = buf->numFds + buf->numInts;
+                for (int i = 0; i < length; i++) {
+                    result = 31 * result + buf->data[i];
+                }
+                return result;
+            }
+        };
+
+        struct BufferComparator {
+            bool operator()(const buffer_handle_t& buf1, const buffer_handle_t& buf2) const {
+                if (buf1->numFds == buf2->numFds && buf1->numInts == buf2->numInts) {
+                    int length = buf1->numFds + buf1->numInts;
+                    for (int i = 0; i < length; i++) {
+                        if (buf1->data[i] != buf2->data[i]) {
+                            return false;
+                        }
+                    }
+                    return true;
+                }
+                return false;
+            }
+        };
+
+        std::mutex mBufferIdMapLock; // protecting mBufferIdMaps and mNextBufferId
+        typedef std::unordered_map<const buffer_handle_t, uint64_t,
+                BufferHasher, BufferComparator> BufferIdMap;
+        // stream ID -> per stream buffer ID map
+        std::unordered_map<int, BufferIdMap> mBufferIdMaps;
+        uint64_t mNextBufferId = 1; // 0 means no buffer
+        static const uint64_t BUFFER_ID_NO_BUFFER = 0;
+
+        // method to extract buffer's unique ID
+        // TODO: we should switch to use gralloc mapper's getBackingStore API
+        //       once we ran in binderized gralloc mode, but before that is ready,
+        //       we need to rely on the conventional buffer queue behavior where
+        //       buffer_handle_t's FD won't change.
+        // return pair of (newlySeenBuffer?, bufferId)
+        std::pair<bool, uint64_t> getBufferId(const buffer_handle_t& buf, int streamId);
+    };
+
+    std::unique_ptr<HalInterface> mInterface;
 
     CameraMetadata             mDeviceInfo;
 
@@ -288,6 +399,7 @@
         camera3_stream_buffer_t             mInputBuffer;
         Vector<sp<camera3::Camera3OutputStreamInterface> >
                                             mOutputStreams;
+        SurfaceMap                          mOutputSurfaces;
         CaptureResultExtras                 mResultExtras;
         // Used to cancel AE precapture trigger for devices doesn't support
         // CONTROL_AE_PRECAPTURE_TRIGGER_CANCEL
@@ -297,6 +409,8 @@
         // requests will be submitted to HAL at a time. The batch size for
         // the following 7 requests will be ignored by the request thread.
         int                                 mBatchSize;
+        //  Whether this request is from a repeating or repeating burst.
+        bool                                mRepeating;
     };
     typedef List<sp<CaptureRequest> > RequestList;
 
@@ -304,16 +418,41 @@
 
     status_t convertMetadataListToRequestListLocked(
             const List<const CameraMetadata> &metadataList,
+            const std::list<const SurfaceMap> &surfaceMaps,
+            bool repeating,
             /*out*/
             RequestList *requestList);
 
-    status_t submitRequestsHelper(const List<const CameraMetadata> &requests, bool repeating,
+    void convertToRequestList(List<const CameraMetadata>& requests,
+            std::list<const SurfaceMap>& surfaceMaps,
+            const CameraMetadata& request);
+
+    status_t submitRequestsHelper(const List<const CameraMetadata> &requests,
+                                  const std::list<const SurfaceMap> &surfaceMaps,
+                                  bool repeating,
                                   int64_t *lastFrameNumber = NULL);
 
+
+    /**
+     * Implementation of android::hardware::camera::device::V3_2::ICameraDeviceCallback
+     */
+
+    hardware::Return<void> processCaptureResult(
+            const hardware::camera::device::V3_2::CaptureResult& result) override;
+    hardware::Return<void> notify(
+            const hardware::camera::device::V3_2::NotifyMsg& msg) override;
+
+    /**
+     * Common initialization code shared by both HAL paths
+     *
+     * Must be called with mLock and mInterfaceLock held.
+     */
+    status_t initializeCommonLocked();
+
     /**
      * Get the last request submitted to the hal by the request thread.
      *
-     * Takes mLock.
+     * Must be called with mLock held.
      */
     virtual CameraMetadata getLatestRequestLocked();
 
@@ -362,19 +501,21 @@
      * Do common work for setting up a streaming or single capture request.
      * On success, will transition to ACTIVE if in IDLE.
      */
-    sp<CaptureRequest> setUpRequestLocked(const CameraMetadata &request);
+    sp<CaptureRequest> setUpRequestLocked(const CameraMetadata &request,
+                                          const SurfaceMap &surfaceMap);
 
     /**
      * Build a CaptureRequest request from the CameraDeviceBase request
      * settings.
      */
-    sp<CaptureRequest> createCaptureRequest(const CameraMetadata &request);
+    sp<CaptureRequest> createCaptureRequest(const CameraMetadata &request,
+                                            const SurfaceMap &surfaceMap);
 
     /**
      * Take the currently-defined set of streams and configure the HAL to use
      * them. This is a long-running operation (may be several hundered ms).
      */
-    status_t           configureStreamsLocked();
+    status_t           configureStreamsLocked(int operatingMode);
 
     /**
      * Cancel stream configuration that did not finish successfully.
@@ -431,6 +572,25 @@
      */
     static android_dataspace mapToLegacyDataspace(android_dataspace dataSpace);
 
+    /**
+     * Helper functions to map between framework and HIDL values
+     */
+    static hardware::graphics::common::V1_0::PixelFormat mapToPixelFormat(int frameworkFormat);
+    static hardware::camera::device::V3_2::DataspaceFlags mapToHidlDataspace(
+            android_dataspace dataSpace);
+    static hardware::camera::device::V3_2::ConsumerUsageFlags mapToConsumerUsage(uint32_t usage);
+    static hardware::camera::device::V3_2::StreamRotation mapToStreamRotation(
+            camera3_stream_rotation_t rotation);
+    // Returns a negative error code if the passed-in operation mode is not valid.
+    static status_t mapToStreamConfigurationMode(camera3_stream_configuration_mode_t operationMode,
+            /*out*/ hardware::camera::device::V3_2::StreamConfigurationMode *mode);
+    static camera3_buffer_status_t mapHidlBufferStatus(hardware::camera::device::V3_2::BufferStatus status);
+    static int mapToFrameworkFormat(hardware::graphics::common::V1_0::PixelFormat pixelFormat);
+    static uint32_t mapConsumerToFrameworkUsage(
+            hardware::camera::device::V3_2::ConsumerUsageFlags usage);
+    static uint32_t mapProducerToFrameworkUsage(
+            hardware::camera::device::V3_2::ProducerUsageFlags usage);
+
     struct RequestTrigger {
         // Metadata tag number, e.g. android.control.aePrecaptureTrigger
         uint32_t metadataTag;
@@ -457,8 +617,10 @@
 
         RequestThread(wp<Camera3Device> parent,
                 sp<camera3::StatusTracker> statusTracker,
-                camera3_device_t *hal3Device,
+                HalInterface* interface,
+                uint32_t deviceVersion,
                 bool aeLockAvailable);
+        ~RequestThread();
 
         void     setNotificationListener(wp<NotificationListener> listener);
 
@@ -538,7 +700,7 @@
         virtual bool threadLoop();
 
       private:
-        static int         getId(const wp<Camera3Device> &device);
+        static const String8& getId(const wp<Camera3Device> &device);
 
         status_t           queueTriggerLocked(RequestTrigger trigger);
         // Mix-in queued triggers into this request
@@ -599,11 +761,12 @@
 
         wp<Camera3Device>  mParent;
         wp<camera3::StatusTracker>  mStatusTracker;
-        camera3_device_t  *mHal3Device;
+        HalInterface*      mInterface;
+        uint32_t           mDeviceVersion;
 
         wp<NotificationListener> mListener;
 
-        const int          mId;       // The camera ID
+        const String8&     mId;       // The camera ID
         int                mStatusId; // The RequestThread's component ID for
                                       // status tracking
 
diff --git a/services/camera/libcameraservice/device3/Camera3DummyStream.cpp b/services/camera/libcameraservice/device3/Camera3DummyStream.cpp
index 5123785..9c951b7 100644
--- a/services/camera/libcameraservice/device3/Camera3DummyStream.cpp
+++ b/services/camera/libcameraservice/device3/Camera3DummyStream.cpp
@@ -36,7 +36,8 @@
 
 }
 
-status_t Camera3DummyStream::getBufferLocked(camera3_stream_buffer *) {
+status_t Camera3DummyStream::getBufferLocked(camera3_stream_buffer *,
+        const std::vector<size_t>&) {
     ATRACE_CALL();
     ALOGE("%s: Stream %d: Dummy stream cannot produce buffers!", __FUNCTION__, mId);
     return INVALID_OPERATION;
@@ -103,13 +104,13 @@
     return false;
 }
 
-bool Camera3DummyStream::isConsumerConfigurationDeferred() const {
+bool Camera3DummyStream::isConsumerConfigurationDeferred(size_t /*surface_id*/) const {
     return false;
 }
 
-status_t Camera3DummyStream::setConsumer(sp<Surface> consumer) {
-    ALOGE("%s: Stream %d: Dummy stream doesn't support set consumer surface %p!",
-            __FUNCTION__, mId, consumer.get());
+status_t Camera3DummyStream::setConsumers(const std::vector<sp<Surface>>& /*consumers*/) {
+    ALOGE("%s: Stream %d: Dummy stream doesn't support set consumer surface!",
+            __FUNCTION__, mId);
     return INVALID_OPERATION;
 }
 }; // namespace camera3
diff --git a/services/camera/libcameraservice/device3/Camera3DummyStream.h b/services/camera/libcameraservice/device3/Camera3DummyStream.h
index 18e8a23..35a6a18 100644
--- a/services/camera/libcameraservice/device3/Camera3DummyStream.h
+++ b/services/camera/libcameraservice/device3/Camera3DummyStream.h
@@ -64,12 +64,12 @@
     /**
      * Return if the consumer configuration of this stream is deferred.
      */
-    virtual bool isConsumerConfigurationDeferred() const;
+    virtual bool isConsumerConfigurationDeferred(size_t surface_id) const;
 
     /**
-     * Set the consumer surface to the output stream.
+     * Set the consumer surfaces to the output stream.
      */
-    virtual status_t setConsumer(sp<Surface> consumer);
+    virtual status_t setConsumers(const std::vector<sp<Surface>>& consumers);
 
   protected:
 
@@ -99,7 +99,8 @@
     /**
      * Internal Camera3Stream interface
      */
-    virtual status_t getBufferLocked(camera3_stream_buffer *buffer);
+    virtual status_t getBufferLocked(camera3_stream_buffer *buffer,
+            const std::vector<size_t>& surface_ids = std::vector<size_t>());
     virtual status_t returnBufferLocked(
             const camera3_stream_buffer &buffer,
             nsecs_t timestamp);
diff --git a/services/camera/libcameraservice/device3/Camera3InputStream.cpp b/services/camera/libcameraservice/device3/Camera3InputStream.cpp
index f781ded..1469b74 100644
--- a/services/camera/libcameraservice/device3/Camera3InputStream.cpp
+++ b/services/camera/libcameraservice/device3/Camera3InputStream.cpp
@@ -85,6 +85,9 @@
                         /*releaseFence*/-1, CAMERA3_BUFFER_STATUS_OK, /*output*/false);
     mBuffersInFlight.push_back(bufferItem);
 
+    mFrameCount++;
+    mLastTimestamp = bufferItem.mTimestamp;
+
     return OK;
 }
 
@@ -220,6 +223,7 @@
 
     mHandoutTotalBufferCount = 0;
     mFrameCount = 0;
+    mLastTimestamp = 0;
 
     if (mConsumer.get() == 0) {
         sp<IGraphicBufferProducer> producer;
diff --git a/services/camera/libcameraservice/device3/Camera3OutputStream.cpp b/services/camera/libcameraservice/device3/Camera3OutputStream.cpp
index 7229929..51dc20a 100644
--- a/services/camera/libcameraservice/device3/Camera3OutputStream.cpp
+++ b/services/camera/libcameraservice/device3/Camera3OutputStream.cpp
@@ -124,6 +124,7 @@
                                          int format,
                                          android_dataspace dataSpace,
                                          camera3_stream_rotation_t rotation,
+                                         uint32_t consumerUsage, nsecs_t timestampOffset,
                                          int setId) :
         Camera3IOStreamBase(id, type, width, height,
                             /*maxSize*/0,
@@ -132,7 +133,8 @@
         mTraceFirstBuffer(true),
         mUseMonoTimestamp(false),
         mUseBufferManager(false),
-        mConsumerUsage(0) {
+        mTimestampOffset(timestampOffset),
+        mConsumerUsage(consumerUsage) {
 
     if (setId > CAMERA3_STREAM_SET_ID_INVALID) {
         mBufferReleasedListener = new BufferReleasedListener(this);
@@ -146,73 +148,17 @@
     disconnectLocked();
 }
 
-status_t Camera3OutputStream::getBufferLocked(camera3_stream_buffer *buffer) {
+status_t Camera3OutputStream::getBufferLocked(camera3_stream_buffer *buffer,
+        const std::vector<size_t>&) {
     ATRACE_CALL();
-    status_t res;
-
-    if ((res = getBufferPreconditionCheckLocked()) != OK) {
-        return res;
-    }
 
     ANativeWindowBuffer* anb;
     int fenceFd = -1;
-    bool gotBufferFromManager = false;
 
-    if (mUseBufferManager) {
-        sp<GraphicBuffer> gb;
-        res = mBufferManager->getBufferForStream(getId(), getStreamSetId(), &gb, &fenceFd);
-        if (res == OK) {
-            // Attach this buffer to the bufferQueue: the buffer will be in dequeue state after a
-            // successful return.
-            anb = gb.get();
-            res = mConsumer->attachBuffer(anb);
-            if (res != OK) {
-                ALOGE("%s: Stream %d: Can't attach the output buffer to this surface: %s (%d)",
-                        __FUNCTION__, mId, strerror(-res), res);
-                return res;
-            }
-            gotBufferFromManager = true;
-            ALOGV("Stream %d: Attached new buffer", getId());
-        } else if (res == ALREADY_EXISTS) {
-            // Have sufficient free buffers already attached, can just
-            // dequeue from buffer queue
-            ALOGV("Stream %d: Reusing attached buffer", getId());
-            gotBufferFromManager = false;
-        } else if (res != OK) {
-            ALOGE("%s: Stream %d: Can't get next output buffer from buffer manager: %s (%d)",
-                    __FUNCTION__, mId, strerror(-res), res);
-            return res;
-        }
-    }
-    if (!gotBufferFromManager) {
-        /**
-         * Release the lock briefly to avoid deadlock for below scenario:
-         * Thread 1: StreamingProcessor::startStream -> Camera3Stream::isConfiguring().
-         * This thread acquired StreamingProcessor lock and try to lock Camera3Stream lock.
-         * Thread 2: Camera3Stream::returnBuffer->StreamingProcessor::onFrameAvailable().
-         * This thread acquired Camera3Stream lock and bufferQueue lock, and try to lock
-         * StreamingProcessor lock.
-         * Thread 3: Camera3Stream::getBuffer(). This thread acquired Camera3Stream lock
-         * and try to lock bufferQueue lock.
-         * Then there is circular locking dependency.
-         */
-        sp<ANativeWindow> currentConsumer = mConsumer;
-        mLock.unlock();
-
-        res = currentConsumer->dequeueBuffer(currentConsumer.get(), &anb, &fenceFd);
-        mLock.lock();
-        if (res != OK) {
-            ALOGE("%s: Stream %d: Can't dequeue next output buffer: %s (%d)",
-                    __FUNCTION__, mId, strerror(-res), res);
-
-            // Only transition to STATE_ABANDONED from STATE_CONFIGURED. (If it is STATE_PREPARING,
-            // let prepareNextBuffer handle the error.)
-            if (res == NO_INIT && mState == STATE_CONFIGURED) {
-                mState = STATE_ABANDONED;
-            }
-
-            return res;
-        }
+    status_t res;
+    res = getBufferLockedCommon(&anb, &fenceFd);
+    if (res != OK) {
+        return res;
     }
 
     /**
@@ -225,6 +171,11 @@
     return OK;
 }
 
+status_t Camera3OutputStream::queueBufferToConsumer(sp<ANativeWindow>& consumer,
+            ANativeWindowBuffer* buffer, int anwReleaseFence) {
+    return consumer->queueBuffer(consumer.get(), buffer, anwReleaseFence);
+}
+
 status_t Camera3OutputStream::returnBufferLocked(
         const camera3_stream_buffer &buffer,
         nsecs_t timestamp) {
@@ -237,6 +188,7 @@
     }
 
     mLastTimestamp = timestamp;
+    mFrameCount++;
 
     return OK;
 }
@@ -266,6 +218,7 @@
     sp<ANativeWindow> currentConsumer = mConsumer;
     mLock.unlock();
 
+    ANativeWindowBuffer *anwBuffer = container_of(buffer.buffer, ANativeWindowBuffer, handle);
     /**
      * Return buffer back to ANativeWindow
      */
@@ -273,13 +226,14 @@
         // Cancel buffer
         ALOGW("A frame is dropped for stream %d", mId);
         res = currentConsumer->cancelBuffer(currentConsumer.get(),
-                container_of(buffer.buffer, ANativeWindowBuffer, handle),
+                anwBuffer,
                 anwReleaseFence);
         if (res != OK) {
             ALOGE("%s: Stream %d: Error cancelling buffer to native window:"
                   " %s (%d)", __FUNCTION__, mId, strerror(-res), res);
         }
 
+        notifyBufferReleased(anwBuffer);
         if (mUseBufferManager) {
             // Return this buffer back to buffer manager.
             mBufferReleasedListener->onBufferReleased();
@@ -305,9 +259,7 @@
             return res;
         }
 
-        res = currentConsumer->queueBuffer(currentConsumer.get(),
-                container_of(buffer.buffer, ANativeWindowBuffer, handle),
-                anwReleaseFence);
+        res = queueBufferToConsumer(currentConsumer, anwBuffer, anwReleaseFence);
         if (res != OK) {
             ALOGE("%s: Stream %d: Error queueing buffer to native window: "
                   "%s (%d)", __FUNCTION__, mId, strerror(-res), res);
@@ -373,6 +325,24 @@
         return res;
     }
 
+    if ((res = configureConsumerQueueLocked()) != OK) {
+        return res;
+    }
+
+    // Set dequeueBuffer/attachBuffer timeout if the consumer is not hw composer or hw texture.
+    // We need skip these cases as timeout will disable the non-blocking (async) mode.
+    if (!(isConsumedByHWComposer() || isConsumedByHWTexture())) {
+        mConsumer->setDequeueTimeout(kDequeueBufferTimeout);
+    }
+
+    return OK;
+}
+
+status_t Camera3OutputStream::configureConsumerQueueLocked() {
+    status_t res;
+
+    mTraceFirstBuffer = true;
+
     ALOG_ASSERT(mConsumer != 0, "mConsumer should never be NULL");
 
     // Configure consumer-side ANativeWindow interface. The listener may be used
@@ -470,12 +440,7 @@
     if (res != OK) {
         ALOGE("%s: Unable to configure stream transform to %x: %s (%d)",
                 __FUNCTION__, mTransform, strerror(-res), res);
-    }
-
-    // Set dequeueBuffer/attachBuffer timeout if the consumer is not hw composer or hw texture.
-    // We need skip these cases as timeout will disable the non-blocking (async) mode.
-    if (!(isConsumedByHWComposer() || isConsumedByHWTexture())) {
-        mConsumer->setDequeueTimeout(kDequeueBufferTimeout);
+        return res;
     }
 
     /**
@@ -511,6 +476,76 @@
     return OK;
 }
 
+status_t Camera3OutputStream::getBufferLockedCommon(ANativeWindowBuffer** anb, int* fenceFd) {
+    ATRACE_CALL();
+    status_t res;
+
+    if ((res = getBufferPreconditionCheckLocked()) != OK) {
+        return res;
+    }
+
+    bool gotBufferFromManager = false;
+
+    if (mUseBufferManager) {
+        sp<GraphicBuffer> gb;
+        res = mBufferManager->getBufferForStream(getId(), getStreamSetId(), &gb, fenceFd);
+        if (res == OK) {
+            // Attach this buffer to the bufferQueue: the buffer will be in dequeue state after a
+            // successful return.
+            *anb = gb.get();
+            res = mConsumer->attachBuffer(*anb);
+            if (res != OK) {
+                ALOGE("%s: Stream %d: Can't attach the output buffer to this surface: %s (%d)",
+                        __FUNCTION__, mId, strerror(-res), res);
+                return res;
+            }
+            gotBufferFromManager = true;
+            ALOGV("Stream %d: Attached new buffer", getId());
+        } else if (res == ALREADY_EXISTS) {
+            // Have sufficient free buffers already attached, can just
+            // dequeue from buffer queue
+            ALOGV("Stream %d: Reusing attached buffer", getId());
+            gotBufferFromManager = false;
+        } else if (res != OK) {
+            ALOGE("%s: Stream %d: Can't get next output buffer from buffer manager: %s (%d)",
+                    __FUNCTION__, mId, strerror(-res), res);
+            return res;
+        }
+    }
+    if (!gotBufferFromManager) {
+        /**
+         * Release the lock briefly to avoid deadlock for below scenario:
+         * Thread 1: StreamingProcessor::startStream -> Camera3Stream::isConfiguring().
+         * This thread acquired StreamingProcessor lock and try to lock Camera3Stream lock.
+         * Thread 2: Camera3Stream::returnBuffer->StreamingProcessor::onFrameAvailable().
+         * This thread acquired Camera3Stream lock and bufferQueue lock, and try to lock
+         * StreamingProcessor lock.
+         * Thread 3: Camera3Stream::getBuffer(). This thread acquired Camera3Stream lock
+         * and try to lock bufferQueue lock.
+         * Then there is circular locking dependency.
+         */
+        sp<ANativeWindow> currentConsumer = mConsumer;
+        mLock.unlock();
+
+        res = currentConsumer->dequeueBuffer(currentConsumer.get(), anb, fenceFd);
+        mLock.lock();
+        if (res != OK) {
+            ALOGE("%s: Stream %d: Can't dequeue next output buffer: %s (%d)",
+                    __FUNCTION__, mId, strerror(-res), res);
+
+            // Only transition to STATE_ABANDONED from STATE_CONFIGURED. (If it is STATE_PREPARING,
+            // let prepareNextBuffer handle the error.)
+            if (res == NO_INIT && mState == STATE_CONFIGURED) {
+                mState = STATE_ABANDONED;
+            }
+
+            return res;
+        }
+    }
+
+    return res;
+}
+
 status_t Camera3OutputStream::disconnectLocked() {
     status_t res;
 
@@ -568,14 +603,24 @@
 status_t Camera3OutputStream::getEndpointUsage(uint32_t *usage) const {
 
     status_t res;
-    int32_t u = 0;
+
     if (mConsumer == nullptr) {
         // mConsumerUsage was sanitized before the Camera3OutputStream was constructed.
         *usage = mConsumerUsage;
         return OK;
     }
 
-    res = static_cast<ANativeWindow*>(mConsumer.get())->query(mConsumer.get(),
+    res = getEndpointUsageForSurface(usage, mConsumer);
+
+    return res;
+}
+
+status_t Camera3OutputStream::getEndpointUsageForSurface(uint32_t *usage,
+        const sp<Surface>& surface) const {
+    status_t res;
+    int32_t u = 0;
+
+    res = static_cast<ANativeWindow*>(surface.get())->query(surface.get(),
             NATIVE_WINDOW_CONSUMER_USAGE_BITS, &u);
 
     // If an opaque output stream's endpoint is ImageReader, add
@@ -587,8 +632,8 @@
     //     3. GRALLOC_USAGE_HW_COMPOSER
     //     4. GRALLOC_USAGE_HW_VIDEO_ENCODER
     if (camera3_stream::format == HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED &&
-            (u & (GRALLOC_USAGE_HW_TEXTURE | GRALLOC_USAGE_HW_RENDER | GRALLOC_USAGE_HW_COMPOSER |
-            GRALLOC_USAGE_HW_VIDEO_ENCODER)) == 0) {
+            (u & (GRALLOC_USAGE_HW_TEXTURE | GRALLOC_USAGE_HW_RENDER |
+            GRALLOC_USAGE_HW_COMPOSER | GRALLOC_USAGE_HW_VIDEO_ENCODER)) == 0) {
         u |= GRALLOC_USAGE_HW_CAMERA_ZSL;
     }
 
@@ -676,14 +721,28 @@
     return OK;
 }
 
-bool Camera3OutputStream::isConsumerConfigurationDeferred() const {
+status_t Camera3OutputStream::notifyBufferReleased(ANativeWindowBuffer* /*anwBuffer*/) {
+    return OK;
+}
+
+bool Camera3OutputStream::isConsumerConfigurationDeferred(size_t surface_id) const {
     Mutex::Autolock l(mLock);
+
+    if (surface_id != 0) {
+        ALOGE("%s: surface_id %zu for Camera3OutputStream should be 0!", __FUNCTION__, surface_id);
+    }
     return mConsumer == nullptr;
 }
 
-status_t Camera3OutputStream::setConsumer(sp<Surface> consumer) {
-    if (consumer == nullptr) {
-        ALOGE("%s: it's illegal to set a null consumer surface!", __FUNCTION__);
+status_t Camera3OutputStream::setConsumers(const std::vector<sp<Surface>>& consumers) {
+    Mutex::Autolock l(mLock);
+    if (consumers.size() != 1) {
+        ALOGE("%s: it's illegal to set %zu consumer surfaces!",
+                  __FUNCTION__, consumers.size());
+        return INVALID_OPERATION;
+    }
+    if (consumers[0] == nullptr) {
+        ALOGE("%s: it's illegal to set null consumer surface!", __FUNCTION__);
         return INVALID_OPERATION;
     }
 
@@ -692,7 +751,7 @@
         return INVALID_OPERATION;
     }
 
-    mConsumer = consumer;
+    mConsumer = consumers[0];
     return OK;
 }
 
diff --git a/services/camera/libcameraservice/device3/Camera3OutputStream.h b/services/camera/libcameraservice/device3/Camera3OutputStream.h
index 12d497e..24e4e05 100644
--- a/services/camera/libcameraservice/device3/Camera3OutputStream.h
+++ b/services/camera/libcameraservice/device3/Camera3OutputStream.h
@@ -135,12 +135,12 @@
     /**
      * Return if the consumer configuration of this stream is deferred.
      */
-    virtual bool isConsumerConfigurationDeferred() const;
+    virtual bool isConsumerConfigurationDeferred(size_t surface_id) const;
 
     /**
-     * Set the consumer surface to the output stream.
+     * Set the consumer surfaces to the output stream.
      */
-    virtual status_t setConsumer(sp<Surface> consumer);
+    virtual status_t setConsumers(const std::vector<sp<Surface>>& consumers);
 
     class BufferReleasedListener : public BnProducerListener {
         public:
@@ -159,6 +159,12 @@
     virtual status_t detachBuffer(sp<GraphicBuffer>* buffer, int* fenceFd);
 
     /**
+     * Notify that the buffer is being released to the buffer queue instead of
+     * being queued to the consumer.
+     */
+    virtual status_t notifyBufferReleased(ANativeWindowBuffer *anwBuffer);
+
+    /**
      * Set the graphic buffer manager to get/return the stream buffers.
      *
      * It is only legal to call this method when stream is in STATE_CONSTRUCTED state.
@@ -169,6 +175,7 @@
     Camera3OutputStream(int id, camera3_stream_type_t type,
             uint32_t width, uint32_t height, int format,
             android_dataspace dataSpace, camera3_stream_rotation_t rotation,
+            uint32_t consumerUsage = 0, nsecs_t timestampOffset = 0,
             int setId = CAMERA3_STREAM_SET_ID_INVALID);
 
     /**
@@ -183,12 +190,22 @@
 
     virtual status_t disconnectLocked();
 
+    status_t getEndpointUsageForSurface(uint32_t *usage,
+            const sp<Surface>& surface) const;
+    status_t configureConsumerQueueLocked();
+
+    // Consumer as the output of camera HAL
     sp<Surface> mConsumer;
 
-  private:
+    uint32_t getPresetConsumerUsage() const { return mConsumerUsage; }
 
     static const nsecs_t       kDequeueBufferTimeout   = 1000000000; // 1 sec
 
+    status_t getBufferLockedCommon(ANativeWindowBuffer** anb, int* fenceFd);
+
+
+  private:
+
     int               mTransform;
 
     virtual status_t  setTransformLocked(int transform);
@@ -232,11 +249,16 @@
     /**
      * Internal Camera3Stream interface
      */
-    virtual status_t getBufferLocked(camera3_stream_buffer *buffer);
+    virtual status_t getBufferLocked(camera3_stream_buffer *buffer,
+            const std::vector<size_t>& surface_ids);
+
     virtual status_t returnBufferLocked(
             const camera3_stream_buffer &buffer,
             nsecs_t timestamp);
 
+    virtual status_t queueBufferToConsumer(sp<ANativeWindow>& consumer,
+            ANativeWindowBuffer* buffer, int anwReleaseFence);
+
     virtual status_t configureQueueLocked();
 
     virtual status_t getEndpointUsage(uint32_t *usage) const;
diff --git a/services/camera/libcameraservice/device3/Camera3OutputStreamInterface.h b/services/camera/libcameraservice/device3/Camera3OutputStreamInterface.h
index 3f83c89..8107dd0 100644
--- a/services/camera/libcameraservice/device3/Camera3OutputStreamInterface.h
+++ b/services/camera/libcameraservice/device3/Camera3OutputStreamInterface.h
@@ -43,12 +43,12 @@
     /**
      * Return if the consumer configuration of this stream is deferred.
      */
-    virtual bool isConsumerConfigurationDeferred() const = 0;
+    virtual bool isConsumerConfigurationDeferred(size_t surface_id = 0) const = 0;
 
     /**
-     * Set the consumer surface to the output stream.
+     * Set the consumer surfaces to the output stream.
      */
-    virtual status_t setConsumer(sp<Surface> consumer) = 0;
+    virtual status_t setConsumers(const std::vector<sp<Surface>>& consumers) = 0;
 
     /**
      * Detach an unused buffer from the stream.
diff --git a/services/camera/libcameraservice/device3/Camera3SharedOutputStream.cpp b/services/camera/libcameraservice/device3/Camera3SharedOutputStream.cpp
new file mode 100644
index 0000000..2ae5660
--- /dev/null
+++ b/services/camera/libcameraservice/device3/Camera3SharedOutputStream.cpp
@@ -0,0 +1,220 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "Camera3SharedOutputStream.h"
+
+namespace android {
+
+namespace camera3 {
+
+Camera3SharedOutputStream::Camera3SharedOutputStream(int id,
+        const std::vector<sp<Surface>>& surfaces,
+        uint32_t width, uint32_t height, int format,
+        uint32_t consumerUsage, android_dataspace dataSpace,
+        camera3_stream_rotation_t rotation,
+        nsecs_t timestampOffset, int setId) :
+        Camera3OutputStream(id, CAMERA3_STREAM_OUTPUT, width, height,
+                            format, dataSpace, rotation, consumerUsage,
+                            timestampOffset, setId),
+        mSurfaces(surfaces) {
+}
+
+Camera3SharedOutputStream::~Camera3SharedOutputStream() {
+    disconnectLocked();
+}
+
+status_t Camera3SharedOutputStream::connectStreamSplitterLocked() {
+    status_t res = OK;
+
+    mStreamSplitter = new Camera3StreamSplitter();
+
+    uint32_t usage;
+    getEndpointUsage(&usage);
+
+    res = mStreamSplitter->connect(mSurfaces, usage, camera3_stream::max_buffers, &mConsumer);
+    if (res != OK) {
+        ALOGE("%s: Failed to connect to stream splitter: %s(%d)",
+                __FUNCTION__, strerror(-res), res);
+        return res;
+    }
+
+    return res;
+}
+
+status_t Camera3SharedOutputStream::notifyBufferReleased(ANativeWindowBuffer *anwBuffer) {
+    Mutex::Autolock l(mLock);
+    status_t res = OK;
+    const sp<GraphicBuffer> buffer(static_cast<GraphicBuffer*>(anwBuffer));
+
+    if (mStreamSplitter != nullptr) {
+        res = mStreamSplitter->notifyBufferReleased(buffer);
+    }
+
+    return res;
+}
+
+bool Camera3SharedOutputStream::isConsumerConfigurationDeferred(size_t surface_id) const {
+    Mutex::Autolock l(mLock);
+    return (surface_id >= mSurfaces.size());
+}
+
+status_t Camera3SharedOutputStream::setConsumers(const std::vector<sp<Surface>>& surfaces) {
+    Mutex::Autolock l(mLock);
+    if (surfaces.size() == 0) {
+        ALOGE("%s: it's illegal to set zero consumer surfaces!", __FUNCTION__);
+        return INVALID_OPERATION;
+    }
+
+    status_t ret = OK;
+    for (auto& surface : surfaces) {
+        if (surface == nullptr) {
+            ALOGE("%s: it's illegal to set a null consumer surface!", __FUNCTION__);
+            return INVALID_OPERATION;
+        }
+
+        mSurfaces.push_back(surface);
+
+        // Only call addOutput if the splitter has been connected.
+        if (mStreamSplitter != nullptr) {
+            ret = mStreamSplitter->addOutput(surface);
+            if (ret != OK) {
+                ALOGE("%s: addOutput failed with error code %d", __FUNCTION__, ret);
+                return ret;
+
+            }
+        }
+    }
+    return ret;
+}
+
+status_t Camera3SharedOutputStream::getBufferLocked(camera3_stream_buffer *buffer,
+        const std::vector<size_t>& surface_ids) {
+    ANativeWindowBuffer* anb;
+    int fenceFd = -1;
+
+    status_t res;
+    res = getBufferLockedCommon(&anb, &fenceFd);
+    if (res != OK) {
+        return res;
+    }
+
+    // Attach the buffer to the splitter output queues. This could block if
+    // the output queue doesn't have any empty slot. So unlock during the course
+    // of attachBufferToOutputs.
+    sp<Camera3StreamSplitter> splitter = mStreamSplitter;
+    mLock.unlock();
+    res = splitter->attachBufferToOutputs(anb, surface_ids);
+    mLock.lock();
+    if (res != OK) {
+        ALOGE("%s: Stream %d: Cannot attach stream splitter buffer to outputs: %s (%d)",
+                __FUNCTION__, mId, strerror(-res), res);
+        // Only transition to STATE_ABANDONED from STATE_CONFIGURED. (If it is STATE_PREPARING,
+        // let prepareNextBuffer handle the error.)
+        if (res == NO_INIT && mState == STATE_CONFIGURED) {
+            mState = STATE_ABANDONED;
+        }
+
+        return res;
+    }
+
+    /**
+     * FenceFD now owned by HAL except in case of error,
+     * in which case we reassign it to acquire_fence
+     */
+    handoutBufferLocked(*buffer, &(anb->handle), /*acquireFence*/fenceFd,
+                        /*releaseFence*/-1, CAMERA3_BUFFER_STATUS_OK, /*output*/true);
+
+    return OK;
+}
+
+status_t Camera3SharedOutputStream::queueBufferToConsumer(sp<ANativeWindow>& consumer,
+            ANativeWindowBuffer* buffer, int anwReleaseFence) {
+    status_t res = consumer->queueBuffer(consumer.get(), buffer, anwReleaseFence);
+
+    // After queuing buffer to the internal consumer queue, check whether the buffer is
+    // successfully queued to the output queues.
+    if (res == OK) {
+        res = mStreamSplitter->getOnFrameAvailableResult();
+        if (res != OK) {
+            ALOGE("%s: getOnFrameAvailable returns %d", __FUNCTION__, res);
+        }
+    } else {
+        ALOGE("%s: queueBufer failed %d", __FUNCTION__, res);
+    }
+
+    return res;
+}
+
+status_t Camera3SharedOutputStream::configureQueueLocked() {
+    status_t res;
+
+    if ((res = Camera3IOStreamBase::configureQueueLocked()) != OK) {
+        return res;
+    }
+
+    res = connectStreamSplitterLocked();
+    if (res != OK) {
+        ALOGE("Cannot connect to stream splitter: %s(%d)", strerror(-res), res);
+        return res;
+    }
+
+    res = configureConsumerQueueLocked();
+    if (res != OK) {
+        ALOGE("Failed to configureConsumerQueueLocked: %s(%d)", strerror(-res), res);
+        return res;
+    }
+
+    return OK;
+}
+
+status_t Camera3SharedOutputStream::disconnectLocked() {
+    status_t res;
+    res = Camera3OutputStream::disconnectLocked();
+
+    if (mStreamSplitter != nullptr) {
+        mStreamSplitter->disconnect();
+    }
+
+    return res;
+}
+
+status_t Camera3SharedOutputStream::getEndpointUsage(uint32_t *usage) const {
+
+    status_t res = OK;
+    uint32_t u = 0;
+
+    if (mConsumer == nullptr) {
+        // Called before shared buffer queue is constructed.
+        *usage = getPresetConsumerUsage();
+
+        for (auto surface : mSurfaces) {
+            if (surface != nullptr) {
+                res = getEndpointUsageForSurface(&u, surface);
+                *usage |= u;
+            }
+        }
+    } else {
+        // Called after shared buffer queue is constructed.
+        res = getEndpointUsageForSurface(&u, mConsumer);
+        *usage |= u;
+    }
+
+    return res;
+}
+
+} // namespace camera3
+
+} // namespace android
diff --git a/services/camera/libcameraservice/device3/Camera3SharedOutputStream.h b/services/camera/libcameraservice/device3/Camera3SharedOutputStream.h
new file mode 100644
index 0000000..7be0940
--- /dev/null
+++ b/services/camera/libcameraservice/device3/Camera3SharedOutputStream.h
@@ -0,0 +1,85 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_SERVERS_CAMERA3_SHARED_OUTPUT_STREAM_H
+#define ANDROID_SERVERS_CAMERA3_SHARED_OUTPUT_STREAM_H
+
+#include "Camera3StreamSplitter.h"
+#include "Camera3OutputStream.h"
+
+namespace android {
+
+namespace camera3 {
+
+class Camera3SharedOutputStream :
+        public Camera3OutputStream {
+public:
+    /**
+     * Set up a stream for formats that have 2 dimensions, with multiple
+     * surfaces. A valid stream set id needs to be set to support buffer
+     * sharing between multiple streams.
+     */
+    Camera3SharedOutputStream(int id, const std::vector<sp<Surface>>& surfaces,
+            uint32_t width, uint32_t height, int format,
+            uint32_t consumerUsage, android_dataspace dataSpace,
+            camera3_stream_rotation_t rotation, nsecs_t timestampOffset,
+            int setId = CAMERA3_STREAM_SET_ID_INVALID);
+
+    virtual ~Camera3SharedOutputStream();
+
+    virtual status_t notifyBufferReleased(ANativeWindowBuffer *buffer);
+
+    virtual bool isConsumerConfigurationDeferred(size_t surface_id) const;
+
+    virtual status_t setConsumers(const std::vector<sp<Surface>>& consumers);
+
+private:
+    // Surfaces passed in constructor from app
+    std::vector<sp<Surface> > mSurfaces;
+
+    /**
+     * The Camera3StreamSplitter object this stream uses for stream
+     * sharing.
+     */
+    sp<Camera3StreamSplitter> mStreamSplitter;
+
+    /**
+     * Initialize stream splitter.
+     */
+    status_t connectStreamSplitterLocked();
+
+    /**
+     * Internal Camera3Stream interface
+     */
+    virtual status_t getBufferLocked(camera3_stream_buffer *buffer,
+            const std::vector<size_t>& surface_ids);
+
+    virtual status_t queueBufferToConsumer(sp<ANativeWindow>& consumer,
+            ANativeWindowBuffer* buffer, int anwReleaseFence);
+
+    virtual status_t configureQueueLocked();
+
+    virtual status_t disconnectLocked();
+
+    virtual status_t getEndpointUsage(uint32_t *usage) const;
+
+}; // class Camera3SharedOutputStream
+
+} // namespace camera3
+
+} // namespace android
+
+#endif // ANDROID_SERVERS_CAMERA3_SHARED_OUTPUT_STREAM_H
diff --git a/services/camera/libcameraservice/device3/Camera3Stream.cpp b/services/camera/libcameraservice/device3/Camera3Stream.cpp
index 3ffd9d1..53a3168 100644
--- a/services/camera/libcameraservice/device3/Camera3Stream.cpp
+++ b/services/camera/libcameraservice/device3/Camera3Stream.cpp
@@ -166,7 +166,7 @@
     return (mState == STATE_IN_CONFIG) || (mState == STATE_IN_RECONFIG);
 }
 
-status_t Camera3Stream::finishConfiguration(camera3_device *hal3Device) {
+status_t Camera3Stream::finishConfiguration() {
     ATRACE_CALL();
     Mutex::Autolock l(mLock);
     switch (mState) {
@@ -216,14 +216,6 @@
         return res;
     }
 
-    res = registerBuffersLocked(hal3Device);
-    if (res != OK) {
-        ALOGE("%s: Unable to register stream buffers with HAL: %s (%d)",
-                __FUNCTION__, strerror(-res), res);
-        mState = STATE_ERROR;
-        return res;
-    }
-
     mState = STATE_CONFIGURED;
 
     return res;
@@ -451,7 +443,8 @@
     return OK;
 }
 
-status_t Camera3Stream::getBuffer(camera3_stream_buffer *buffer) {
+status_t Camera3Stream::getBuffer(camera3_stream_buffer *buffer,
+        const std::vector<size_t>& surface_ids) {
     ATRACE_CALL();
     Mutex::Autolock l(mLock);
     status_t res = OK;
@@ -478,7 +471,7 @@
         }
     }
 
-    res = getBufferLocked(buffer);
+    res = getBufferLocked(buffer, surface_ids);
     if (res == OK) {
         fireBufferListenersLocked(*buffer, /*acquired*/true, /*output*/true);
         if (buffer->buffer) {
@@ -753,7 +746,8 @@
     return res;
 }
 
-status_t Camera3Stream::getBufferLocked(camera3_stream_buffer *) {
+status_t Camera3Stream::getBufferLocked(camera3_stream_buffer *,
+        const std::vector<size_t>&) {
     ALOGE("%s: This type of stream does not support output", __FUNCTION__);
     return INVALID_OPERATION;
 }
diff --git a/services/camera/libcameraservice/device3/Camera3Stream.h b/services/camera/libcameraservice/device3/Camera3Stream.h
index 1ff215d..56cb827 100644
--- a/services/camera/libcameraservice/device3/Camera3Stream.h
+++ b/services/camera/libcameraservice/device3/Camera3Stream.h
@@ -144,6 +144,10 @@
     int               getFormat() const;
     android_dataspace getDataSpace() const;
 
+    camera3_stream*   asHalStream() override {
+        return this;
+    }
+
     /**
      * Start the stream configuration process. Returns a handle to the stream's
      * information to be passed into the HAL device's configure_streams call.
@@ -165,11 +169,10 @@
     bool             isConfiguring() const;
 
     /**
-     * Completes the stream configuration process. During this call, the stream
-     * may call the device's register_stream_buffers() method. The stream
-     * information structure returned by startConfiguration() may no longer be
-     * modified after this call, but can still be read until the destruction of
-     * the stream.
+     * Completes the stream configuration process. The stream information
+     * structure returned by startConfiguration() may no longer be modified
+     * after this call, but can still be read until the destruction of the
+     * stream.
      *
      * Returns:
      *   OK on a successful configuration
@@ -178,7 +181,7 @@
      *   INVALID_OPERATION in case connecting to the consumer failed or consumer
      *       doesn't exist yet.
      */
-    status_t         finishConfiguration(camera3_device *hal3Device);
+    status_t         finishConfiguration();
 
     /**
      * Cancels the stream configuration process. This returns the stream to the
@@ -274,12 +277,18 @@
      * Fill in the camera3_stream_buffer with the next valid buffer for this
      * stream, to hand over to the HAL.
      *
+     * Multiple surfaces could share the same HAL stream, but a request may
+     * be only for a subset of surfaces. In this case, the
+     * Camera3StreamInterface object needs the surface ID information to acquire
+     * buffers for those surfaces.
+     *
      * This method may only be called once finishConfiguration has been called.
      * For bidirectional streams, this method applies to the output-side
      * buffers.
      *
      */
-    status_t         getBuffer(camera3_stream_buffer *buffer);
+    status_t         getBuffer(camera3_stream_buffer *buffer,
+            const std::vector<size_t>& surface_ids = std::vector<size_t>());
 
     /**
      * Return a buffer to the stream after use by the HAL.
@@ -409,7 +418,8 @@
     // cast to camera3_stream*, implementations must increment the
     // refcount of the stream manually in getBufferLocked, and decrement it in
     // returnBufferLocked.
-    virtual status_t getBufferLocked(camera3_stream_buffer *buffer);
+    virtual status_t getBufferLocked(camera3_stream_buffer *buffer,
+            const std::vector<size_t>& surface_ids = std::vector<size_t>());
     virtual status_t returnBufferLocked(const camera3_stream_buffer &buffer,
             nsecs_t timestamp);
     virtual status_t getInputBufferLocked(camera3_stream_buffer *buffer);
diff --git a/services/camera/libcameraservice/device3/Camera3StreamInterface.h b/services/camera/libcameraservice/device3/Camera3StreamInterface.h
index 6cb7a54..f7b092f 100644
--- a/services/camera/libcameraservice/device3/Camera3StreamInterface.h
+++ b/services/camera/libcameraservice/device3/Camera3StreamInterface.h
@@ -72,6 +72,11 @@
     virtual android_dataspace getDataSpace() const = 0;
 
     /**
+     * Get a HAL3 handle for the stream, without starting stream configuration.
+     */
+    virtual camera3_stream* asHalStream() = 0;
+
+    /**
      * Start the stream configuration process. Returns a handle to the stream's
      * information to be passed into the HAL device's configure_streams call.
      *
@@ -104,7 +109,7 @@
      *   NO_MEMORY in case of an error registering buffers
      *   INVALID_OPERATION in case connecting to the consumer failed
      */
-    virtual status_t finishConfiguration(camera3_device *hal3Device) = 0;
+    virtual status_t finishConfiguration() = 0;
 
     /**
      * Cancels the stream configuration process. This returns the stream to the
@@ -195,12 +200,19 @@
      * Fill in the camera3_stream_buffer with the next valid buffer for this
      * stream, to hand over to the HAL.
      *
+     * Multiple surfaces could share the same HAL stream, but a request may
+     * be only for a subset of surfaces. In this case, the
+     * Camera3StreamInterface object needs the surface ID information to acquire
+     * buffers for those surfaces. For the case of single surface for a HAL
+     * stream, surface_ids parameter has no effect.
+     *
      * This method may only be called once finishConfiguration has been called.
      * For bidirectional streams, this method applies to the output-side
      * buffers.
      *
      */
-    virtual status_t getBuffer(camera3_stream_buffer *buffer) = 0;
+    virtual status_t getBuffer(camera3_stream_buffer *buffer,
+            const std::vector<size_t>& surface_ids = std::vector<size_t>()) = 0;
 
     /**
      * Return a buffer to the stream after use by the HAL.
diff --git a/services/camera/libcameraservice/device3/Camera3StreamSplitter.cpp b/services/camera/libcameraservice/device3/Camera3StreamSplitter.cpp
new file mode 100644
index 0000000..bf6af86
--- /dev/null
+++ b/services/camera/libcameraservice/device3/Camera3StreamSplitter.cpp
@@ -0,0 +1,564 @@
+/*
+ * Copyright 2014,2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <inttypes.h>
+
+#define LOG_TAG "Camera3StreamSplitter"
+#define ATRACE_TAG ATRACE_TAG_CAMERA
+//#define LOG_NDEBUG 0
+
+#include <gui/BufferItem.h>
+#include <gui/IGraphicBufferConsumer.h>
+#include <gui/IGraphicBufferProducer.h>
+#include <gui/BufferQueue.h>
+#include <gui/Surface.h>
+
+#include <ui/GraphicBuffer.h>
+
+#include <binder/ProcessState.h>
+
+#include <utils/Trace.h>
+
+#include <cutils/atomic.h>
+
+#include "Camera3StreamSplitter.h"
+
+namespace android {
+
+status_t Camera3StreamSplitter::connect(const std::vector<sp<Surface> >& surfaces,
+        uint32_t consumerUsage, size_t halMaxBuffers, sp<Surface>* consumer) {
+    ATRACE_CALL();
+    if (consumer == nullptr) {
+        SP_LOGE("%s: consumer pointer is NULL", __FUNCTION__);
+        return BAD_VALUE;
+    }
+
+    Mutex::Autolock lock(mMutex);
+    status_t res = OK;
+
+    if (mOutputs.size() > 0 || mConsumer != nullptr) {
+        SP_LOGE("%s: already connected", __FUNCTION__);
+        return BAD_VALUE;
+    }
+    if (mBuffers.size() > 0) {
+        SP_LOGE("%s: still has %zu pending buffers", __FUNCTION__, mBuffers.size());
+        return BAD_VALUE;
+    }
+
+    mMaxHalBuffers = halMaxBuffers;
+    mConsumerName = getUniqueConsumerName();
+    // Add output surfaces. This has to be before creating internal buffer queue
+    // in order to get max consumer side buffers.
+    for (size_t i = 0; i < surfaces.size(); i++) {
+        if (surfaces[i] == nullptr) {
+            SP_LOGE("%s: Fatal: surface is NULL", __FUNCTION__);
+            return BAD_VALUE;
+        }
+        res = addOutputLocked(surfaces[i]);
+        if (res != OK) {
+            SP_LOGE("%s: Failed to add output surface: %s(%d)",
+                    __FUNCTION__, strerror(-res), res);
+            return res;
+        }
+    }
+
+    // Create BufferQueue for input
+    BufferQueue::createBufferQueue(&mProducer, &mConsumer);
+
+    // Allocate 1 extra buffer to handle the case where all buffers are detached
+    // from input, and attached to the outputs. In this case, the input queue's
+    // dequeueBuffer can still allocate 1 extra buffer before being blocked by
+    // the output's attachBuffer().
+    mBufferItemConsumer = new BufferItemConsumer(mConsumer, consumerUsage,
+                                                 mMaxConsumerBuffers+1);
+    if (mBufferItemConsumer == nullptr) {
+        return NO_MEMORY;
+    }
+    mConsumer->setConsumerName(mConsumerName);
+
+    *consumer = new Surface(mProducer);
+    if (*consumer == nullptr) {
+        return NO_MEMORY;
+    }
+
+    res = mConsumer->consumerConnect(this, /* controlledByApp */ false);
+
+    SP_LOGV("%s: connected", __FUNCTION__);
+    return res;
+}
+
+status_t Camera3StreamSplitter::getOnFrameAvailableResult() {
+    ATRACE_CALL();
+    return mOnFrameAvailableRes.load();
+}
+
+void Camera3StreamSplitter::disconnect() {
+    ATRACE_CALL();
+    Mutex::Autolock lock(mMutex);
+
+    for (auto& notifier : mNotifiers) {
+        sp<IGraphicBufferProducer> producer = notifier.first;
+        sp<OutputListener> listener = notifier.second;
+        IInterface::asBinder(producer)->unlinkToDeath(listener);
+    }
+    mNotifiers.clear();
+
+    for (auto& output : mOutputs) {
+        output->disconnect(NATIVE_WINDOW_API_CAMERA);
+    }
+    mOutputs.clear();
+    mOutputSlots.clear();
+
+    mConsumer->consumerDisconnect();
+
+    if (mBuffers.size() > 0) {
+        SP_LOGW("%zu buffers still being tracked", mBuffers.size());
+        mBuffers.clear();
+    }
+
+    mMaxHalBuffers = 0;
+    mMaxConsumerBuffers = 0;
+    SP_LOGV("%s: Disconnected", __FUNCTION__);
+}
+
+
+Camera3StreamSplitter::~Camera3StreamSplitter() {
+    disconnect();
+}
+
+status_t Camera3StreamSplitter::addOutput(const sp<Surface>& outputQueue) {
+    ATRACE_CALL();
+    Mutex::Autolock lock(mMutex);
+    status_t res = addOutputLocked(outputQueue);
+
+    if (res != OK) {
+        SP_LOGE("%s: addOutputLocked failed %d", __FUNCTION__, res);
+        return res;
+    }
+
+    res = mConsumer->setMaxAcquiredBufferCount(mMaxConsumerBuffers+1);
+
+    return res;
+}
+
+status_t Camera3StreamSplitter::addOutputLocked(const sp<Surface>& outputQueue) {
+    ATRACE_CALL();
+    if (outputQueue == nullptr) {
+        SP_LOGE("addOutput: outputQueue must not be NULL");
+        return BAD_VALUE;
+    }
+
+    sp<IGraphicBufferProducer> gbp = outputQueue->getIGraphicBufferProducer();
+    // Connect to the buffer producer
+    sp<OutputListener> listener(new OutputListener(this, gbp));
+    IInterface::asBinder(gbp)->linkToDeath(listener);
+    status_t res = outputQueue->connect(NATIVE_WINDOW_API_CAMERA, listener);
+    if (res != NO_ERROR) {
+        SP_LOGE("addOutput: failed to connect (%d)", res);
+        return res;
+    }
+
+    // Query consumer side buffer count, and update overall buffer count
+    int maxConsumerBuffers = 0;
+    res = static_cast<ANativeWindow*>(outputQueue.get())->query(
+            outputQueue.get(),
+            NATIVE_WINDOW_MIN_UNDEQUEUED_BUFFERS, &maxConsumerBuffers);
+    if (res != OK) {
+        SP_LOGE("%s: Unable to query consumer undequeued buffer count"
+              " for surface", __FUNCTION__);
+        return res;
+    }
+
+    SP_LOGV("%s: Consumer wants %d buffers, Producer wants %zu", __FUNCTION__,
+            maxConsumerBuffers, mMaxHalBuffers);
+    size_t totalBufferCount = maxConsumerBuffers + mMaxHalBuffers;
+    res = native_window_set_buffer_count(outputQueue.get(),
+            totalBufferCount);
+    if (res != OK) {
+        SP_LOGE("%s: Unable to set buffer count for surface %p",
+                __FUNCTION__, outputQueue.get());
+        return res;
+    }
+
+    // Set dequeueBuffer/attachBuffer timeout if the consumer is not hw composer or hw texture.
+    // We need skip these cases as timeout will disable the non-blocking (async) mode.
+    int32_t usage = 0;
+    static_cast<ANativeWindow*>(outputQueue.get())->query(
+            outputQueue.get(),
+            NATIVE_WINDOW_CONSUMER_USAGE_BITS, &usage);
+    if (!(usage & (GRALLOC_USAGE_HW_COMPOSER | GRALLOC_USAGE_HW_TEXTURE))) {
+        outputQueue->setDequeueTimeout(kDequeueBufferTimeout);
+    }
+
+    res = gbp->allowAllocation(false);
+    if (res != OK) {
+        SP_LOGE("%s: Failed to turn off allocation for outputQueue", __FUNCTION__);
+        return res;
+    }
+
+    // Add new entry into mOutputs
+    mOutputs.push_back(gbp);
+    mNotifiers[gbp] = listener;
+    mOutputSlots[gbp] = std::make_unique<OutputSlots>(totalBufferCount);
+
+    mMaxConsumerBuffers += maxConsumerBuffers;
+    return NO_ERROR;
+}
+
+status_t Camera3StreamSplitter::outputBufferLocked(const sp<IGraphicBufferProducer>& output,
+        const BufferItem& bufferItem) {
+    ATRACE_CALL();
+    status_t res;
+    IGraphicBufferProducer::QueueBufferInput queueInput(
+            bufferItem.mTimestamp, bufferItem.mIsAutoTimestamp,
+            bufferItem.mDataSpace, bufferItem.mCrop,
+            static_cast<int32_t>(bufferItem.mScalingMode),
+            bufferItem.mTransform, bufferItem.mFence);
+
+    IGraphicBufferProducer::QueueBufferOutput queueOutput;
+
+    uint64_t bufferId = bufferItem.mGraphicBuffer->getId();
+    const BufferTracker& tracker = *(mBuffers[bufferId]);
+    int slot = getSlotForOutputLocked(output, tracker.getBuffer());
+
+    // In case the output BufferQueue has its own lock, if we hold splitter lock while calling
+    // queueBuffer (which will try to acquire the output lock), the output could be holding its
+    // own lock calling releaseBuffer (which  will try to acquire the splitter lock), running into
+    // circular lock situation.
+    mMutex.unlock();
+    res = output->queueBuffer(slot, queueInput, &queueOutput);
+    mMutex.lock();
+
+    SP_LOGV("%s: Queuing buffer to buffer queue %p slot %d returns %d",
+            __FUNCTION__, output.get(), slot, res);
+    if (res != OK) {
+        if (res != NO_INIT && res != DEAD_OBJECT) {
+            SP_LOGE("Queuing buffer to output failed (%d)", res);
+        }
+        // If we just discovered that this output has been abandoned, note
+        // that, increment the release count so that we still release this
+        // buffer eventually, and move on to the next output
+        onAbandonedLocked();
+        decrementBufRefCountLocked(bufferItem.mGraphicBuffer->getId(), output);
+        return res;
+    }
+
+    // If the queued buffer replaces a pending buffer in the async
+    // queue, no onBufferReleased is called by the buffer queue.
+    // Proactively trigger the callback to avoid buffer loss.
+    if (queueOutput.bufferReplaced) {
+        onBufferReleasedByOutputLocked(output);
+    }
+
+    return res;
+}
+
+String8 Camera3StreamSplitter::getUniqueConsumerName() {
+    static volatile int32_t counter = 0;
+    return String8::format("Camera3StreamSplitter-%d", android_atomic_inc(&counter));
+}
+
+status_t Camera3StreamSplitter::notifyBufferReleased(const sp<GraphicBuffer>& buffer) {
+    ATRACE_CALL();
+    status_t res = OK;
+
+    Mutex::Autolock lock(mMutex);
+
+    uint64_t bufferId = buffer->getId();
+    std::unique_ptr<BufferTracker> tracker_ptr = std::move(mBuffers[bufferId]);
+    mBuffers.erase(bufferId);
+
+    for (const auto surface : tracker_ptr->requestedSurfaces()) {
+        sp<IGraphicBufferProducer>& gbp = mOutputs[surface];
+        OutputSlots& outputSlots = *(mOutputSlots[gbp]);
+        int slot = getSlotForOutputLocked(gbp, buffer);
+        if (slot != BufferItem::INVALID_BUFFER_SLOT) {
+             gbp->detachBuffer(slot);
+             outputSlots[slot].clear();
+        }
+    }
+
+    return res;
+}
+
+status_t Camera3StreamSplitter::attachBufferToOutputs(ANativeWindowBuffer* anb,
+        const std::vector<size_t>& surface_ids) {
+    ATRACE_CALL();
+    status_t res = OK;
+
+    Mutex::Autolock lock(mMutex);
+
+    sp<GraphicBuffer> gb(static_cast<GraphicBuffer*>(anb));
+    uint64_t bufferId = gb->getId();
+
+    // Initialize buffer tracker for this input buffer
+    auto tracker = std::make_unique<BufferTracker>(gb, surface_ids);
+
+    for (auto& surface_id : surface_ids) {
+        sp<IGraphicBufferProducer>& gbp = mOutputs[surface_id];
+        int slot = BufferItem::INVALID_BUFFER_SLOT;
+        //Temporarly Unlock the mutex when trying to attachBuffer to the output
+        //queue, because attachBuffer could block in case of a slow consumer. If
+        //we block while holding the lock, onFrameAvailable and onBufferReleased
+        //will block as well because they need to acquire the same lock.
+        mMutex.unlock();
+        res = gbp->attachBuffer(&slot, gb);
+        mMutex.lock();
+        if (res != OK) {
+            SP_LOGE("%s: Cannot acquireBuffer from GraphicBufferProducer %p: %s (%d)",
+                    __FUNCTION__, gbp.get(), strerror(-res), res);
+            return res;
+        }
+        auto& outputSlots = *mOutputSlots[gbp];
+        if (outputSlots[slot] != nullptr) {
+            // If the buffer is attached to a slot which already contains a buffer,
+            // the previous buffer will be removed from the output queue. Decrement
+            // the reference count accordingly.
+            decrementBufRefCountLocked(outputSlots[slot]->getId(), gbp);
+        }
+        SP_LOGV("%s: Attached buffer %p to slot %d on output %p.",__FUNCTION__, gb.get(),
+                slot, gbp.get());
+        outputSlots[slot] = gb;
+    }
+
+    mBuffers[bufferId] = std::move(tracker);
+
+    return res;
+}
+
+void Camera3StreamSplitter::onFrameAvailable(const BufferItem& /*item*/) {
+    ATRACE_CALL();
+    Mutex::Autolock lock(mMutex);
+
+    // Acquire and detach the buffer from the input
+    BufferItem bufferItem;
+    status_t res = mConsumer->acquireBuffer(&bufferItem, /* presentWhen */ 0);
+    if (res != NO_ERROR) {
+        SP_LOGE("%s: Acquiring buffer from input failed (%d)", __FUNCTION__, res);
+        mOnFrameAvailableRes.store(res);
+        return;
+    }
+    if (mBuffers.find(bufferItem.mGraphicBuffer->getId()) == mBuffers.end()) {
+        SP_LOGE("%s: Acquired buffer doesn't exist in attached buffer map",
+                __FUNCTION__);
+        mOnFrameAvailableRes.store(INVALID_OPERATION);
+        return;
+    }
+
+    SP_LOGV("acquired buffer %" PRId64 " from input at slot %d",
+            bufferItem.mGraphicBuffer->getId(), bufferItem.mSlot);
+
+    res = mConsumer->detachBuffer(bufferItem.mSlot);
+    if (res != NO_ERROR) {
+        SP_LOGE("%s: detaching buffer from input failed (%d)", __FUNCTION__, res);
+        mOnFrameAvailableRes.store(res);
+        return;
+    }
+
+    // Attach and queue the buffer to each of the outputs
+    BufferTracker& tracker = *(mBuffers[bufferItem.mGraphicBuffer->getId()]);
+
+    SP_LOGV("%s: BufferTracker for buffer %" PRId64 ", number of requests %zu",
+           __FUNCTION__, bufferItem.mGraphicBuffer->getId(), tracker.requestedSurfaces().size());
+    for (const auto id : tracker.requestedSurfaces()) {
+
+        LOG_ALWAYS_FATAL_IF(id >= mOutputs.size(),
+                "requested surface id exceeding max registered ids");
+
+        res = outputBufferLocked(mOutputs[id], bufferItem);
+        if (res != OK) {
+            SP_LOGE("%s: outputBufferLocked failed %d", __FUNCTION__, res);
+            mOnFrameAvailableRes.store(res);
+            // If we fail to send buffer to certain output, keep sending to
+            // other outputs.
+            continue;
+        }
+    }
+
+    mOnFrameAvailableRes.store(res);
+}
+
+void Camera3StreamSplitter::decrementBufRefCountLocked(uint64_t id,
+        const sp<IGraphicBufferProducer>& from) {
+    ATRACE_CALL();
+    size_t referenceCount = mBuffers[id]->decrementReferenceCountLocked();
+
+    removeSlotForOutputLocked(from, mBuffers[id]->getBuffer());
+    if (referenceCount > 0) {
+        return;
+    }
+
+    // We no longer need to track the buffer now that it is being returned to the
+    // input. Note that this should happen before we unlock the mutex and call
+    // releaseBuffer, to avoid the case where the same bufferId is acquired in
+    // attachBufferToOutputs resulting in a new BufferTracker with same bufferId
+    // overwrites the current one.
+    std::unique_ptr<BufferTracker> tracker_ptr = std::move(mBuffers[id]);
+    mBuffers.erase(id);
+
+    // Attach and release the buffer back to the input
+    int consumerSlot = BufferItem::INVALID_BUFFER_SLOT;
+    status_t res = mConsumer->attachBuffer(&consumerSlot, tracker_ptr->getBuffer());
+    if (res != NO_ERROR) {
+        SP_LOGE("%s: attaching buffer to input failed (%d)", __FUNCTION__, res);
+        return;
+    }
+
+    // Temporarily unlock mutex to avoid circular lock:
+    // 1. This function holds splitter lock, calls releaseBuffer which triggers
+    // onBufferReleased in Camera3OutputStream. onBufferReleased waits on the
+    // OutputStream lock
+    // 2. Camera3SharedOutputStream::getBufferLocked calls
+    // attachBufferToOutputs, which holds the stream lock, and waits for the
+    // splitter lock.
+    sp<IGraphicBufferConsumer> consumer(mConsumer);
+    mMutex.unlock();
+    if (consumer != nullptr) {
+        res = consumer->releaseBuffer(consumerSlot, /* frameNumber */ 0,
+                EGL_NO_DISPLAY, EGL_NO_SYNC_KHR, tracker_ptr->getMergedFence());
+    } else {
+        SP_LOGE("%s: consumer has become null!", __FUNCTION__);
+    }
+    mMutex.lock();
+    // If the producer of this queue is disconnected, -22 error will occur
+    if (res != NO_ERROR) {
+        SP_LOGE("%s: releaseBuffer returns %d", __FUNCTION__, res);
+    }
+}
+
+void Camera3StreamSplitter::onBufferReleasedByOutput(
+        const sp<IGraphicBufferProducer>& from) {
+    ATRACE_CALL();
+    Mutex::Autolock lock(mMutex);
+
+    onBufferReleasedByOutputLocked(from);
+}
+
+void Camera3StreamSplitter::onBufferReleasedByOutputLocked(
+        const sp<IGraphicBufferProducer>& from) {
+    ATRACE_CALL();
+    sp<GraphicBuffer> buffer;
+    sp<Fence> fence;
+    status_t res = from->detachNextBuffer(&buffer, &fence);
+    if (res == NO_INIT) {
+        // If we just discovered that this output has been abandoned, note that,
+        // but we can't do anything else, since buffer is invalid
+        onAbandonedLocked();
+        return;
+    } else if (res == NO_MEMORY) {
+        SP_LOGV("%s: No free buffers", __FUNCTION__);
+        return;
+    } else {
+        LOG_ALWAYS_FATAL_IF(res != NO_ERROR,
+                "detaching buffer from output failed (%d)", res);
+    }
+
+    BufferTracker& tracker = *(mBuffers[buffer->getId()]);
+    // Merge the release fence of the incoming buffer so that the fence we send
+    // back to the input includes all of the outputs' fences
+    if (fence != nullptr && fence->isValid()) {
+        tracker.mergeFence(fence);
+    }
+    SP_LOGV("detached buffer %" PRId64 " %p from output %p",
+            buffer->getId(), buffer.get(), from.get());
+
+    // Check to see if this is the last outstanding reference to this buffer
+    decrementBufRefCountLocked(buffer->getId(), from);
+}
+
+void Camera3StreamSplitter::onAbandonedLocked() {
+    // If this is called from binderDied callback, it means the app process
+    // holding the binder has died. CameraService will be notified of the binder
+    // death, and camera device will be closed, which in turn calls
+    // disconnect().
+    //
+    // If this is called from onBufferReleasedByOutput or onFrameAvailable, one
+    // consumer being abanoned shouldn't impact the other consumer. So we won't
+    // stop the buffer flow.
+    //
+    // In both cases, we don't need to do anything here.
+    SP_LOGV("One of my outputs has abandoned me");
+}
+
+int Camera3StreamSplitter::getSlotForOutputLocked(const sp<IGraphicBufferProducer>& gbp,
+        const sp<GraphicBuffer>& gb) {
+    auto& outputSlots = *mOutputSlots[gbp];
+
+    for (size_t i = 0; i < outputSlots.size(); i++) {
+        if (outputSlots[i] == gb) {
+            return (int)i;
+        }
+    }
+
+    SP_LOGE("%s: Cannot find slot for gb %p on output %p", __FUNCTION__, gb.get(),
+            gbp.get());
+    return BufferItem::INVALID_BUFFER_SLOT;
+}
+
+status_t Camera3StreamSplitter::removeSlotForOutputLocked(const sp<IGraphicBufferProducer>& gbp,
+        const sp<GraphicBuffer>& gb) {
+    auto& outputSlots = *mOutputSlots[gbp];
+
+    for (size_t i = 0; i < outputSlots.size(); i++) {
+        if (outputSlots[i] == gb) {
+           outputSlots[i].clear();
+           return NO_ERROR;
+        }
+    }
+
+    SP_LOGE("%s: Cannot find slot for gb %p on output %p", __FUNCTION__, gb.get(),
+            gbp.get());
+    return BAD_VALUE;
+}
+
+Camera3StreamSplitter::OutputListener::OutputListener(
+        wp<Camera3StreamSplitter> splitter,
+        wp<IGraphicBufferProducer> output)
+      : mSplitter(splitter), mOutput(output) {}
+
+void Camera3StreamSplitter::OutputListener::onBufferReleased() {
+    ATRACE_CALL();
+    sp<Camera3StreamSplitter> splitter = mSplitter.promote();
+    sp<IGraphicBufferProducer> output = mOutput.promote();
+    if (splitter != nullptr && output != nullptr) {
+        splitter->onBufferReleasedByOutput(output);
+    }
+}
+
+void Camera3StreamSplitter::OutputListener::binderDied(const wp<IBinder>& /* who */) {
+    sp<Camera3StreamSplitter> splitter = mSplitter.promote();
+    if (splitter != nullptr) {
+        Mutex::Autolock lock(splitter->mMutex);
+        splitter->onAbandonedLocked();
+    }
+}
+
+Camera3StreamSplitter::BufferTracker::BufferTracker(
+        const sp<GraphicBuffer>& buffer, const std::vector<size_t>& requestedSurfaces)
+      : mBuffer(buffer), mMergedFence(Fence::NO_FENCE), mRequestedSurfaces(requestedSurfaces),
+        mReferenceCount(requestedSurfaces.size()) {}
+
+void Camera3StreamSplitter::BufferTracker::mergeFence(const sp<Fence>& with) {
+    mMergedFence = Fence::merge(String8("Camera3StreamSplitter"), mMergedFence, with);
+}
+
+size_t Camera3StreamSplitter::BufferTracker::decrementReferenceCountLocked() {
+    if (mReferenceCount > 0)
+        --mReferenceCount;
+    return mReferenceCount;
+}
+
+} // namespace android
diff --git a/services/camera/libcameraservice/device3/Camera3StreamSplitter.h b/services/camera/libcameraservice/device3/Camera3StreamSplitter.h
new file mode 100644
index 0000000..cc623e0
--- /dev/null
+++ b/services/camera/libcameraservice/device3/Camera3StreamSplitter.h
@@ -0,0 +1,253 @@
+/*
+ * Copyright 2014,2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_SERVERS_STREAMSPLITTER_H
+#define ANDROID_SERVERS_STREAMSPLITTER_H
+
+#include <gui/IConsumerListener.h>
+#include <gui/IProducerListener.h>
+#include <gui/BufferItemConsumer.h>
+
+#include <utils/Condition.h>
+#include <utils/Mutex.h>
+#include <utils/StrongPointer.h>
+#include <utils/Timers.h>
+
+#define SP_LOGV(x, ...) ALOGV("[%s] " x, mConsumerName.string(), ##__VA_ARGS__)
+#define SP_LOGI(x, ...) ALOGI("[%s] " x, mConsumerName.string(), ##__VA_ARGS__)
+#define SP_LOGW(x, ...) ALOGW("[%s] " x, mConsumerName.string(), ##__VA_ARGS__)
+#define SP_LOGE(x, ...) ALOGE("[%s] " x, mConsumerName.string(), ##__VA_ARGS__)
+
+namespace android {
+
+class GraphicBuffer;
+class IGraphicBufferConsumer;
+class IGraphicBufferProducer;
+
+// Camera3StreamSplitter is an autonomous class that manages one input BufferQueue
+// and multiple output BufferQueues. By using the buffer attach and detach logic
+// in BufferQueue, it is able to present the illusion of a single split
+// BufferQueue, where each buffer queued to the input is available to be
+// acquired by each of the outputs, and is able to be dequeued by the input
+// again only once all of the outputs have released it.
+class Camera3StreamSplitter : public BnConsumerListener {
+public:
+
+    // Constructor
+    Camera3StreamSplitter() = default;
+
+    // Connect to the stream splitter by creating buffer queue and connecting it
+    // with output surfaces.
+    status_t connect(const std::vector<sp<Surface> >& surfaces,
+            uint32_t consumerUsage, size_t halMaxBuffers,
+            sp<Surface>* consumer);
+
+    // addOutput adds an output BufferQueue to the splitter. The splitter
+    // connects to outputQueue as a CPU producer, and any buffers queued
+    // to the input will be queued to each output. It is assumed that all of the
+    // outputs are added before any buffers are queued on the input. If any
+    // output is abandoned by its consumer, the splitter will abandon its input
+    // queue (see onAbandoned).
+    //
+    // A return value other than NO_ERROR means that an error has occurred and
+    // outputQueue has not been added to the splitter. BAD_VALUE is returned if
+    // outputQueue is NULL. See IGraphicBufferProducer::connect for explanations
+    // of other error codes.
+    status_t addOutput(const sp<Surface>& outputQueue);
+
+    // Notification that the graphic buffer has been released to the input
+    // BufferQueue. The buffer should be reused by the camera device instead of
+    // queuing to the outputs.
+    status_t notifyBufferReleased(const sp<GraphicBuffer>& buffer);
+
+    // Attach a buffer to the specified outputs. This call reserves a buffer
+    // slot in the output queue.
+    status_t attachBufferToOutputs(ANativeWindowBuffer* anb,
+            const std::vector<size_t>& surface_ids);
+
+    // Get return value of onFrameAvailable to work around problem that
+    // onFrameAvailable is void. This function should be called by the producer
+    // right after calling queueBuffer().
+    status_t getOnFrameAvailableResult();
+
+    // Disconnect the buffer queue from output surfaces.
+    void disconnect();
+
+private:
+    // From IConsumerListener
+    //
+    // During this callback, we store some tracking information, detach the
+    // buffer from the input, and attach it to each of the outputs. This call
+    // can block if there are too many outstanding buffers. If it blocks, it
+    // will resume when onBufferReleasedByOutput releases a buffer back to the
+    // input.
+    void onFrameAvailable(const BufferItem& item) override;
+
+    // From IConsumerListener
+    // We don't care about released buffers because we detach each buffer as
+    // soon as we acquire it. See the comment for onBufferReleased below for
+    // some clarifying notes about the name.
+    void onBuffersReleased() override {}
+
+    // From IConsumerListener
+    // We don't care about sideband streams, since we won't be splitting them
+    void onSidebandStreamChanged() override {}
+
+    // This is the implementation of the onBufferReleased callback from
+    // IProducerListener. It gets called from an OutputListener (see below), and
+    // 'from' is which producer interface from which the callback was received.
+    //
+    // During this callback, we detach the buffer from the output queue that
+    // generated the callback, update our state tracking to see if this is the
+    // last output releasing the buffer, and if so, release it to the input.
+    // If we release the buffer to the input, we allow a blocked
+    // onFrameAvailable call to proceed.
+    void onBufferReleasedByOutput(const sp<IGraphicBufferProducer>& from);
+
+    // This is the implementation of onBufferReleasedByOutput without the mutex locked.
+    // It could either be called from onBufferReleasedByOutput or from
+    // onFrameAvailable when a buffer in the async buffer queue is overwritten.
+    void onBufferReleasedByOutputLocked(const sp<IGraphicBufferProducer>& from);
+
+    // When this is called, the splitter disconnects from (i.e., abandons) its
+    // input queue and signals any waiting onFrameAvailable calls to wake up.
+    // It still processes callbacks from other outputs, but only detaches their
+    // buffers so they can continue operating until they run out of buffers to
+    // acquire. This must be called with mMutex locked.
+    void onAbandonedLocked();
+
+    // Decrement the buffer's reference count. Once the reference count becomes
+    // 0, return the buffer back to the input BufferQueue.
+    void decrementBufRefCountLocked(uint64_t id, const sp<IGraphicBufferProducer>& from);
+
+    // This is a thin wrapper class that lets us determine which BufferQueue
+    // the IProducerListener::onBufferReleased callback is associated with. We
+    // create one of these per output BufferQueue, and then pass the producer
+    // into onBufferReleasedByOutput above.
+    class OutputListener : public BnProducerListener,
+                           public IBinder::DeathRecipient {
+    public:
+        OutputListener(wp<Camera3StreamSplitter> splitter,
+                wp<IGraphicBufferProducer> output);
+        virtual ~OutputListener() = default;
+
+        // From IProducerListener
+        void onBufferReleased() override;
+
+        // From IBinder::DeathRecipient
+        void binderDied(const wp<IBinder>& who) override;
+
+    private:
+        wp<Camera3StreamSplitter> mSplitter;
+        wp<IGraphicBufferProducer> mOutput;
+    };
+
+    class BufferTracker {
+    public:
+        BufferTracker(const sp<GraphicBuffer>& buffer,
+                const std::vector<size_t>& requestedSurfaces);
+        ~BufferTracker() = default;
+
+        const sp<GraphicBuffer>& getBuffer() const { return mBuffer; }
+        const sp<Fence>& getMergedFence() const { return mMergedFence; }
+
+        void mergeFence(const sp<Fence>& with);
+
+        // Returns the new value
+        // Only called while mMutex is held
+        size_t decrementReferenceCountLocked();
+
+        const std::vector<size_t> requestedSurfaces() const { return mRequestedSurfaces; }
+
+    private:
+
+        // Disallow copying
+        BufferTracker(const BufferTracker& other);
+        BufferTracker& operator=(const BufferTracker& other);
+
+        sp<GraphicBuffer> mBuffer; // One instance that holds this native handle
+        sp<Fence> mMergedFence;
+
+        // Request surfaces for a particular buffer. And when the buffer becomes
+        // available from the input queue, the registered surfaces are used to decide
+        // which output is the buffer sent to.
+        std::vector<size_t> mRequestedSurfaces;
+        size_t mReferenceCount;
+    };
+
+    // Must be accessed through RefBase
+    virtual ~Camera3StreamSplitter();
+
+    status_t addOutputLocked(const sp<Surface>& outputQueue);
+
+    // Send a buffer to particular output, and increment the reference count
+    // of the buffer. If this output is abandoned, the buffer's reference count
+    // won't be incremented.
+    status_t outputBufferLocked(const sp<IGraphicBufferProducer>& output,
+            const BufferItem& bufferItem);
+
+    // Get unique name for the buffer queue consumer
+    String8 getUniqueConsumerName();
+
+    // Helper function to get the BufferQueue slot where a particular buffer is attached to.
+    int getSlotForOutputLocked(const sp<IGraphicBufferProducer>& gbp,
+            const sp<GraphicBuffer>& gb);
+    // Helper function to remove the buffer from the BufferQueue slot
+    status_t removeSlotForOutputLocked(const sp<IGraphicBufferProducer>& gbp,
+            const sp<GraphicBuffer>& gb);
+
+
+    // Sum of max consumer buffers for all outputs
+    size_t mMaxConsumerBuffers = 0;
+    size_t mMaxHalBuffers = 0;
+
+    static const nsecs_t kDequeueBufferTimeout   = s2ns(1); // 1 sec
+
+    Mutex mMutex;
+
+    sp<IGraphicBufferProducer> mProducer;
+    sp<IGraphicBufferConsumer> mConsumer;
+    sp<BufferItemConsumer> mBufferItemConsumer;
+    sp<Surface> mSurface;
+
+    std::vector<sp<IGraphicBufferProducer> > mOutputs;
+    // Map of GraphicBuffer IDs (GraphicBuffer::getId()) to buffer tracking
+    // objects (which are mostly for counting how many outputs have released the
+    // buffer, but also contain merged release fences).
+    std::unordered_map<uint64_t, std::unique_ptr<BufferTracker> > mBuffers;
+
+    struct GBPHash {
+        std::size_t operator()(const sp<IGraphicBufferProducer>& producer) const {
+            return std::hash<IGraphicBufferProducer *>{}(producer.get());
+        }
+    };
+
+    std::unordered_map<sp<IGraphicBufferProducer>, sp<OutputListener>,
+            GBPHash> mNotifiers;
+
+    typedef std::vector<sp<GraphicBuffer>> OutputSlots;
+    std::unordered_map<sp<IGraphicBufferProducer>, std::unique_ptr<OutputSlots>,
+            GBPHash> mOutputSlots;
+
+    // Latest onFrameAvailable return value
+    std::atomic<status_t> mOnFrameAvailableRes{0};
+
+    String8 mConsumerName;
+};
+
+} // namespace android
+
+#endif
diff --git a/services/camera/libcameraservice/device3/Camera3ZslStream.cpp b/services/camera/libcameraservice/device3/Camera3ZslStream.cpp
deleted file mode 100644
index ea138b7..0000000
--- a/services/camera/libcameraservice/device3/Camera3ZslStream.cpp
+++ /dev/null
@@ -1,348 +0,0 @@
-/*
- * Copyright (C) 2013 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#define LOG_TAG "Camera3-ZslStream"
-#define ATRACE_TAG ATRACE_TAG_CAMERA
-//#define LOG_NDEBUG 0
-
-#include <inttypes.h>
-
-#include <utils/Log.h>
-#include <utils/Trace.h>
-#include "Camera3ZslStream.h"
-
-typedef android::RingBufferConsumer::PinnedBufferItem PinnedBufferItem;
-
-namespace android {
-
-namespace camera3 {
-
-namespace {
-struct TimestampFinder : public RingBufferConsumer::RingBufferComparator {
-    typedef RingBufferConsumer::BufferInfo BufferInfo;
-
-    enum {
-        SELECT_I1 = -1,
-        SELECT_I2 = 1,
-        SELECT_NEITHER = 0,
-    };
-
-    explicit TimestampFinder(nsecs_t timestamp) : mTimestamp(timestamp) {}
-    ~TimestampFinder() {}
-
-    template <typename T>
-    static void swap(T& a, T& b) {
-        T tmp = a;
-        a = b;
-        b = tmp;
-    }
-
-    /**
-     * Try to find the best candidate for a ZSL buffer.
-     * Match priority from best to worst:
-     *  1) Timestamps match.
-     *  2) Timestamp is closest to the needle (and lower).
-     *  3) Timestamp is closest to the needle (and higher).
-     *
-     */
-    virtual int compare(const BufferInfo *i1,
-                        const BufferInfo *i2) const {
-        // Try to select non-null object first.
-        if (i1 == NULL) {
-            return SELECT_I2;
-        } else if (i2 == NULL) {
-            return SELECT_I1;
-        }
-
-        // Best result: timestamp is identical
-        if (i1->mTimestamp == mTimestamp) {
-            return SELECT_I1;
-        } else if (i2->mTimestamp == mTimestamp) {
-            return SELECT_I2;
-        }
-
-        const BufferInfo* infoPtrs[2] = {
-            i1,
-            i2
-        };
-        int infoSelectors[2] = {
-            SELECT_I1,
-            SELECT_I2
-        };
-
-        // Order i1,i2 so that always i1.timestamp < i2.timestamp
-        if (i1->mTimestamp > i2->mTimestamp) {
-            swap(infoPtrs[0], infoPtrs[1]);
-            swap(infoSelectors[0], infoSelectors[1]);
-        }
-
-        // Second best: closest (lower) timestamp
-        if (infoPtrs[1]->mTimestamp < mTimestamp) {
-            return infoSelectors[1];
-        } else if (infoPtrs[0]->mTimestamp < mTimestamp) {
-            return infoSelectors[0];
-        }
-
-        // Worst: closest (higher) timestamp
-        return infoSelectors[0];
-
-        /**
-         * The above cases should cover all the possibilities,
-         * and we get an 'empty' result only if the ring buffer
-         * was empty itself
-         */
-    }
-
-    const nsecs_t mTimestamp;
-}; // struct TimestampFinder
-} // namespace anonymous
-
-Camera3ZslStream::Camera3ZslStream(int id, uint32_t width, uint32_t height,
-        int bufferCount) :
-        Camera3OutputStream(id, CAMERA3_STREAM_BIDIRECTIONAL,
-                            width, height,
-                            HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED,
-                            HAL_DATASPACE_UNKNOWN, CAMERA3_STREAM_ROTATION_0) {
-
-    sp<IGraphicBufferProducer> producer;
-    sp<IGraphicBufferConsumer> consumer;
-    BufferQueue::createBufferQueue(&producer, &consumer);
-    mProducer = new RingBufferConsumer(consumer, GRALLOC_USAGE_HW_CAMERA_ZSL, bufferCount);
-    mProducer->setName(String8("Camera2-ZslRingBufferConsumer"));
-    mConsumer = new Surface(producer);
-}
-
-Camera3ZslStream::~Camera3ZslStream() {
-}
-
-status_t Camera3ZslStream::getInputBufferLocked(camera3_stream_buffer *buffer) {
-    ATRACE_CALL();
-
-    status_t res;
-
-    // TODO: potentially register from inputBufferLocked
-    // this should be ok, registerBuffersLocked only calls getBuffer for now
-    // register in output mode instead of input mode for ZSL streams.
-    if (mState == STATE_IN_CONFIG || mState == STATE_IN_RECONFIG) {
-        ALOGE("%s: Stream %d: Buffer registration for input streams"
-              " not implemented (state %d)",
-              __FUNCTION__, mId, mState);
-        return INVALID_OPERATION;
-    }
-
-    if ((res = getBufferPreconditionCheckLocked()) != OK) {
-        return res;
-    }
-
-    ANativeWindowBuffer* anb;
-    int fenceFd;
-
-    assert(mProducer != 0);
-
-    sp<PinnedBufferItem> bufferItem;
-    {
-        List<sp<RingBufferConsumer::PinnedBufferItem> >::iterator it, end;
-        it = mInputBufferQueue.begin();
-        end = mInputBufferQueue.end();
-
-        // Need to call enqueueInputBufferByTimestamp as a prerequisite
-        if (it == end) {
-            ALOGE("%s: Stream %d: No input buffer was queued",
-                    __FUNCTION__, mId);
-            return INVALID_OPERATION;
-        }
-        bufferItem = *it;
-        mInputBufferQueue.erase(it);
-    }
-
-    anb = bufferItem->getBufferItem().mGraphicBuffer->getNativeBuffer();
-    assert(anb != NULL);
-    fenceFd = bufferItem->getBufferItem().mFence->dup();
-
-    /**
-     * FenceFD now owned by HAL except in case of error,
-     * in which case we reassign it to acquire_fence
-     */
-    handoutBufferLocked(*buffer, &(anb->handle), /*acquireFence*/fenceFd,
-                         /*releaseFence*/-1, CAMERA3_BUFFER_STATUS_OK, /*output*/false);
-
-    mBuffersInFlight.push_back(bufferItem);
-
-    return OK;
-}
-
-status_t Camera3ZslStream::returnBufferCheckedLocked(
-            const camera3_stream_buffer &buffer,
-            nsecs_t timestamp,
-            bool output,
-            /*out*/
-            sp<Fence> *releaseFenceOut) {
-
-    if (output) {
-        // Output stream path
-        return Camera3OutputStream::returnBufferCheckedLocked(buffer,
-                                                              timestamp,
-                                                              output,
-                                                              releaseFenceOut);
-    }
-
-    /**
-     * Input stream path
-     */
-    bool bufferFound = false;
-    sp<PinnedBufferItem> bufferItem;
-    {
-        // Find the buffer we are returning
-        Vector<sp<PinnedBufferItem> >::iterator it, end;
-        for (it = mBuffersInFlight.begin(), end = mBuffersInFlight.end();
-             it != end;
-             ++it) {
-
-            const sp<PinnedBufferItem>& tmp = *it;
-            ANativeWindowBuffer *anb =
-                    tmp->getBufferItem().mGraphicBuffer->getNativeBuffer();
-            if (anb != NULL && &(anb->handle) == buffer.buffer) {
-                bufferFound = true;
-                bufferItem = tmp;
-                mBuffersInFlight.erase(it);
-                break;
-            }
-        }
-    }
-    if (!bufferFound) {
-        ALOGE("%s: Stream %d: Can't return buffer that wasn't sent to HAL",
-              __FUNCTION__, mId);
-        return INVALID_OPERATION;
-    }
-
-    int releaseFenceFd = buffer.release_fence;
-
-    if (buffer.status == CAMERA3_BUFFER_STATUS_ERROR) {
-        if (buffer.release_fence != -1) {
-            ALOGE("%s: Stream %d: HAL should not set release_fence(%d) when "
-                  "there is an error", __FUNCTION__, mId, buffer.release_fence);
-            close(buffer.release_fence);
-        }
-
-        /**
-         * Reassign release fence as the acquire fence incase of error
-         */
-        releaseFenceFd = buffer.acquire_fence;
-    }
-
-    /**
-     * Unconditionally return buffer to the buffer queue.
-     * - Fwk takes over the release_fence ownership
-     */
-    sp<Fence> releaseFence = new Fence(releaseFenceFd);
-    bufferItem->getBufferItem().mFence = releaseFence;
-    bufferItem.clear(); // dropping last reference unpins buffer
-
-    *releaseFenceOut = releaseFence;
-
-    return OK;
-}
-
-status_t Camera3ZslStream::returnInputBufferLocked(
-        const camera3_stream_buffer &buffer) {
-    ATRACE_CALL();
-
-    status_t res = returnAnyBufferLocked(buffer, /*timestamp*/0,
-                                         /*output*/false);
-
-    return res;
-}
-
-void Camera3ZslStream::dump(int fd, const Vector<String16> &args) const {
-    (void) args;
-
-    String8 lines;
-    lines.appendFormat("    Stream[%d]: ZSL\n", mId);
-    write(fd, lines.string(), lines.size());
-
-    Camera3IOStreamBase::dump(fd, args);
-
-    lines = String8();
-    lines.appendFormat("      Input buffers pending: %zu, in flight %zu\n",
-            mInputBufferQueue.size(), mBuffersInFlight.size());
-    write(fd, lines.string(), lines.size());
-}
-
-status_t Camera3ZslStream::enqueueInputBufferByTimestamp(
-        nsecs_t timestamp,
-        nsecs_t* actualTimestamp) {
-
-    Mutex::Autolock l(mLock);
-
-    TimestampFinder timestampFinder = TimestampFinder(timestamp);
-
-    sp<RingBufferConsumer::PinnedBufferItem> pinnedBuffer =
-            mProducer->pinSelectedBuffer(timestampFinder,
-                                        /*waitForFence*/false);
-
-    if (pinnedBuffer == 0) {
-        ALOGE("%s: No ZSL buffers were available yet", __FUNCTION__);
-        return NO_BUFFER_AVAILABLE;
-    }
-
-    nsecs_t actual = pinnedBuffer->getBufferItem().mTimestamp;
-
-    if (actual != timestamp) {
-        // TODO: this is problematic, we'll end up with using wrong result for this pinned buffer.
-        ALOGW("%s: ZSL buffer candidate search didn't find an exact match --"
-              " requested timestamp = %" PRId64 ", actual timestamp = %" PRId64,
-              __FUNCTION__, timestamp, actual);
-    }
-
-    mInputBufferQueue.push_back(pinnedBuffer);
-
-    if (actualTimestamp != NULL) {
-        *actualTimestamp = actual;
-    }
-
-    return OK;
-}
-
-status_t Camera3ZslStream::clearInputRingBuffer(nsecs_t* latestTimestamp) {
-    Mutex::Autolock l(mLock);
-
-    return clearInputRingBufferLocked(latestTimestamp);
-}
-
-status_t Camera3ZslStream::clearInputRingBufferLocked(nsecs_t* latestTimestamp) {
-
-    if (latestTimestamp) {
-        *latestTimestamp = mProducer->getLatestTimestamp();
-    }
-    mInputBufferQueue.clear();
-
-    return mProducer->clear();
-}
-
-status_t Camera3ZslStream::disconnectLocked() {
-    clearInputRingBufferLocked(NULL);
-
-    return Camera3OutputStream::disconnectLocked();
-}
-
-status_t Camera3ZslStream::setTransform(int /*transform*/) {
-    ALOGV("%s: Not implemented", __FUNCTION__);
-    return INVALID_OPERATION;
-}
-
-}; // namespace camera3
-
-}; // namespace android
diff --git a/services/camera/libcameraservice/device3/Camera3ZslStream.h b/services/camera/libcameraservice/device3/Camera3ZslStream.h
deleted file mode 100644
index 12369cf..0000000
--- a/services/camera/libcameraservice/device3/Camera3ZslStream.h
+++ /dev/null
@@ -1,112 +0,0 @@
-/*
- * Copyright (C) 2013 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef ANDROID_SERVERS_CAMERA3_ZSL_STREAM_H
-#define ANDROID_SERVERS_CAMERA3_ZSL_STREAM_H
-
-#include <utils/RefBase.h>
-#include <gui/Surface.h>
-#include <gui/RingBufferConsumer.h>
-
-#include "Camera3OutputStream.h"
-
-namespace android {
-
-namespace camera3 {
-
-/**
- * A class for managing a single opaque ZSL stream to/from the camera device.
- * This acts as a bidirectional stream at the HAL layer, caching and discarding
- * most output buffers, and when directed, pushes a buffer back to the HAL for
- * processing.
- */
-class Camera3ZslStream :
-        public Camera3OutputStream {
-  public:
-    /**
-     * Set up a ZSL stream of a given resolution. bufferCount is the number of buffers
-     * cached within the stream that can be retrieved for input.
-     */
-    Camera3ZslStream(int id, uint32_t width, uint32_t height, int bufferCount);
-    ~Camera3ZslStream();
-
-    virtual void     dump(int fd, const Vector<String16> &args) const;
-
-    enum { NO_BUFFER_AVAILABLE = BufferQueue::NO_BUFFER_AVAILABLE };
-
-    /**
-     * Locate a buffer matching this timestamp in the RingBufferConsumer,
-     * and mark it to be queued at the next getInputBufferLocked invocation.
-     *
-     * Errors: Returns NO_BUFFER_AVAILABLE if we could not find a match.
-     *
-     */
-    status_t enqueueInputBufferByTimestamp(nsecs_t timestamp,
-                                           nsecs_t* actualTimestamp);
-
-    /**
-     * Clears the buffers that can be used by enqueueInputBufferByTimestamp
-     * latestTimestamp will be filled with the largest timestamp of buffers
-     * being cleared, 0 if there is no buffer being clear.
-     */
-    status_t clearInputRingBuffer(nsecs_t* latestTimestamp);
-
-  protected:
-
-    /**
-     * Camera3OutputStreamInterface implementation
-     */
-    status_t setTransform(int transform);
-
-  private:
-
-    // Input buffers pending to be queued into HAL
-    List<sp<RingBufferConsumer::PinnedBufferItem> > mInputBufferQueue;
-    sp<RingBufferConsumer>                          mProducer;
-
-    // Input buffers in flight to HAL
-    Vector<sp<RingBufferConsumer::PinnedBufferItem> > mBuffersInFlight;
-
-    /**
-     * Camera3Stream interface
-     */
-
-    // getInputBuffer/returnInputBuffer operate the input stream side of the
-    // ZslStream.
-    virtual status_t getInputBufferLocked(camera3_stream_buffer *buffer);
-    virtual status_t returnInputBufferLocked(
-            const camera3_stream_buffer &buffer);
-
-    // Actual body to return either input or output buffers
-    virtual status_t returnBufferCheckedLocked(
-            const camera3_stream_buffer &buffer,
-            nsecs_t timestamp,
-            bool output,
-            /*out*/
-            sp<Fence> *releaseFenceOut);
-
-    // Disconnet the Camera3ZslStream specific bufferQueues.
-    virtual status_t disconnectLocked();
-
-    status_t clearInputRingBufferLocked(nsecs_t* latestTimestamp);
-
-}; // class Camera3ZslStream
-
-}; // namespace camera3
-
-}; // namespace android
-
-#endif
diff --git a/services/camera/libcameraservice/gui/RingBufferConsumer.h b/services/camera/libcameraservice/gui/RingBufferConsumer.h
index 28dc5d5..2bafe4a 100644
--- a/services/camera/libcameraservice/gui/RingBufferConsumer.h
+++ b/services/camera/libcameraservice/gui/RingBufferConsumer.h
@@ -19,18 +19,16 @@
 
 #include <gui/BufferItem.h>
 #include <gui/ConsumerBase.h>
+#include <gui/BufferQueue.h>
 
-#include <ui/GraphicBuffer.h>
-
-#include <utils/String8.h>
-#include <utils/Vector.h>
-#include <utils/threads.h>
 #include <utils/List.h>
 
 #define ANDROID_GRAPHICS_RINGBUFFERCONSUMER_JNI_ID "mRingBufferConsumer"
 
 namespace android {
 
+class String8;
+
 /**
  * The RingBufferConsumer maintains a ring buffer of BufferItem objects,
  * (which are 'acquired' as long as they are part of the ring buffer, and
diff --git a/services/camera/libcameraservice/tests/Android.mk b/services/camera/libcameraservice/tests/Android.mk
new file mode 100644
index 0000000..179643b
--- /dev/null
+++ b/services/camera/libcameraservice/tests/Android.mk
@@ -0,0 +1,38 @@
+# Copyright 2013 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+LOCAL_PATH:= $(call my-dir)
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES:= $(call all-cpp-files-under, .)
+
+LOCAL_SHARED_LIBRARIES := \
+    libcutils \
+    libcameraservice \
+    libhidlbase \
+    liblog \
+    libutils \
+    android.hardware.camera.common@1.0 \
+    android.hardware.camera.provider@2.4 \
+    android.hardware.camera.device@1.0 \
+    android.hardware.camera.device@3.2
+
+LOCAL_C_INCLUDES += \
+
+LOCAL_CFLAGS += -Wall -Wextra -Werror
+
+LOCAL_MODULE:= cameraservice_test
+LOCAL_MODULE_TAGS := tests
+
+include $(BUILD_NATIVE_TEST)
diff --git a/services/camera/libcameraservice/tests/CameraProviderManagerTest.cpp b/services/camera/libcameraservice/tests/CameraProviderManagerTest.cpp
new file mode 100644
index 0000000..eb934ba
--- /dev/null
+++ b/services/camera/libcameraservice/tests/CameraProviderManagerTest.cpp
@@ -0,0 +1,141 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_NDEBUG 0
+#define LOG_TAG "CameraProviderManagerTest"
+
+#include "../common/CameraProviderManager.h"
+#include <android/hidl/manager/1.0/IServiceManager.h>
+#include <android/hidl/manager/1.0/IServiceNotification.h>
+
+#include <gtest/gtest.h>
+
+using namespace android;
+using namespace android::hardware::camera;
+using android::hardware::camera::common::V1_0::Status;
+
+/**
+ * Basic test implementation of a camera provider
+ */
+struct TestICameraProvider : virtual public provider::V2_4::ICameraProvider {
+    sp<provider::V2_4::ICameraProviderCallbacks> mCallbacks;
+
+    std::vector<hardware::hidl_string> mDeviceNames;
+
+    TestICameraProvider() {
+        mDeviceNames.push_back("device@3.2/test/0");
+        mDeviceNames.push_back("device@1.0/test/0");
+        mDeviceNames.push_back("device@3.2/test/1");
+    }
+
+    virtual hardware::Return<Status> setCallbacks(
+            const sp<provider::V2_4::ICameraProviderCallbacks>& callbacks) override {
+        mCallbacks = callbacks;
+        return hardware::Return<Status>(Status::OK);
+    }
+
+    using getVendorTags_cb = std::function<void(Status status,
+            const hardware::hidl_vec<common::V1_0::VendorTagSection>& sections)>;
+    virtual hardware::Return<void> getVendorTags(getVendorTags_cb _hidl_cb) override {
+        hardware::hidl_vec<common::V1_0::VendorTagSection> sections;
+        _hidl_cb(Status::OK, sections);
+        return hardware::Void();
+    }
+
+    using getCameraIdList_cb = std::function<void(Status status,
+            const hardware::hidl_vec<hardware::hidl_string>& cameraDeviceNames)>;
+    virtual hardware::Return<void> getCameraIdList(getCameraIdList_cb _hidl_cb) override {
+        _hidl_cb(Status::OK, mDeviceNames);
+        return hardware::Void();
+    }
+
+    using getCameraDeviceInterface_V1_x_cb = std::function<void(Status status,
+            const sp<device::V1_0::ICameraDevice>& device)>;
+    virtual hardware::Return<void> getCameraDeviceInterface_V1_x(
+            const hardware::hidl_string& cameraDeviceName,
+            getCameraDeviceInterface_V1_x_cb _hidl_cb) override {
+        (void) cameraDeviceName;
+        _hidl_cb(Status::OK, nullptr);
+        return hardware::Void();
+    }
+
+    using getCameraDeviceInterface_V3_x_cb = std::function<void(Status status,
+            const sp<device::V3_2::ICameraDevice>& device)>;
+    virtual hardware::Return<void> getCameraDeviceInterface_V3_x(
+            const hardware::hidl_string& cameraDeviceName,
+            getCameraDeviceInterface_V3_x_cb _hidl_cb) override {
+        (void) cameraDeviceName;
+        _hidl_cb(Status::OK, nullptr);
+        return hardware::Void();
+    }
+
+};
+
+/**
+ * Simple test version of the interaction proxy, to use to inject onRegistered calls to the
+ * CameraProviderManager
+ */
+struct TestInteractionProxy : public CameraProviderManager::ServiceInteractionProxy {
+    sp<hidl::manager::V1_0::IServiceNotification> mManagerNotificationInterface;
+    const sp<TestICameraProvider> mTestCameraProvider;
+
+    TestInteractionProxy() :
+            mTestCameraProvider(new TestICameraProvider()) {
+
+    }
+    std::string mLastRequestedServiceName;
+
+    virtual ~TestInteractionProxy() {}
+
+    virtual bool registerForNotifications(
+            const std::string &serviceName,
+            const sp<hidl::manager::V1_0::IServiceNotification> &notification) override {
+        (void) serviceName;
+        mManagerNotificationInterface = notification;
+        return true;
+    }
+
+    virtual sp<hardware::camera::provider::V2_4::ICameraProvider> getService(
+            const std::string &serviceName) override {
+        mLastRequestedServiceName = serviceName;
+        return mTestCameraProvider;
+    }
+
+};
+
+TEST(CameraProviderManagerTest, InitializeTest) {
+
+    status_t res;
+    sp<CameraProviderManager> providerManager = new CameraProviderManager();
+    TestInteractionProxy serviceProxy{};
+
+    res = providerManager->initialize(&serviceProxy);
+    ASSERT_EQ(res, OK) << "Unable to initialize provider manager";
+
+    hardware::hidl_string legacyInstanceName = "legacy/0";
+    ASSERT_EQ(serviceProxy.mLastRequestedServiceName, legacyInstanceName) <<
+            "Legacy instance not requested from service manager";
+
+    hardware::hidl_string testProviderFqInterfaceName =
+            "android.hardware.camera.provider@2.4::ICameraProvider";
+    hardware::hidl_string testProviderInstanceName = "test/0";
+    serviceProxy.mManagerNotificationInterface->onRegistration(
+            testProviderFqInterfaceName,
+            testProviderInstanceName, false);
+
+    ASSERT_EQ(serviceProxy.mLastRequestedServiceName, testProviderInstanceName) <<
+            "Incorrect instance requested from service manager";
+}
diff --git a/services/camera/libcameraservice/utils/CameraTraces.cpp b/services/camera/libcameraservice/utils/CameraTraces.cpp
index 374dc5e..0198690 100644
--- a/services/camera/libcameraservice/utils/CameraTraces.cpp
+++ b/services/camera/libcameraservice/utils/CameraTraces.cpp
@@ -74,7 +74,7 @@
         return BAD_VALUE;
     }
 
-    dprintf(fd, "Camera traces (%zu):\n", pcsList.size());
+    dprintf(fd, "== Camera error traces (%zu): ==\n", pcsList.size());
 
     if (pcsList.empty()) {
         dprintf(fd, "  No camera traces collected.\n");
diff --git a/services/camera/libcameraservice/utils/ClientManager.h b/services/camera/libcameraservice/utils/ClientManager.h
index 830c50b..d7135f1 100644
--- a/services/camera/libcameraservice/utils/ClientManager.h
+++ b/services/camera/libcameraservice/utils/ClientManager.h
@@ -31,6 +31,43 @@
 namespace android {
 namespace resource_policy {
 
+class ClientPriority {
+public:
+    ClientPriority(int32_t score, int32_t state) :
+        mScore(score), mState(state) {}
+
+    int32_t getScore() const { return mScore; }
+    int32_t getState() const { return mState; }
+
+    bool operator==(const ClientPriority& rhs) const {
+        return (this->mScore == rhs.mScore) && (this->mState == rhs.mState);
+    }
+
+    bool operator< (const ClientPriority& rhs)  const {
+        if (this->mScore == rhs.mScore) {
+            return this->mState < rhs.mState;
+        } else {
+            return this->mScore < rhs.mScore;
+        }
+    }
+
+    bool operator> (const ClientPriority& rhs) const {
+        return rhs < *this;
+    }
+
+    bool operator<=(const ClientPriority& rhs) const {
+        return !(*this > rhs);
+    }
+
+    bool operator>=(const ClientPriority& rhs) const {
+        return !(*this < rhs);
+    }
+
+private:
+        int32_t mScore;
+        int32_t mState;
+};
+
 // --------------------------------------------------------------------------------
 
 /**
@@ -45,9 +82,9 @@
 class ClientDescriptor final {
 public:
     ClientDescriptor(const KEY& key, const VALUE& value, int32_t cost,
-            const std::set<KEY>& conflictingKeys, int32_t priority, int32_t ownerId);
+            const std::set<KEY>& conflictingKeys, int32_t score, int32_t ownerId, int32_t state);
     ClientDescriptor(KEY&& key, VALUE&& value, int32_t cost, std::set<KEY>&& conflictingKeys,
-            int32_t priority, int32_t ownerId);
+            int32_t score, int32_t ownerId, int32_t state);
 
     ~ClientDescriptor();
 
@@ -69,7 +106,7 @@
     /**
      * Return the priority for this descriptor.
      */
-    int32_t getPriority() const;
+    const ClientPriority &getPriority() const;
 
     /**
      * Return the owner ID for this descriptor.
@@ -89,7 +126,7 @@
     /**
      * Set the proirity for this descriptor.
      */
-    void setPriority(int32_t priority);
+    void setPriority(const ClientPriority& priority);
 
     // This class is ordered by key
     template<class K, class V>
@@ -100,7 +137,7 @@
     VALUE mValue;
     int32_t mCost;
     std::set<KEY> mConflicting;
-    int32_t mPriority;
+    ClientPriority mPriority;
     int32_t mOwnerId;
 }; // class ClientDescriptor
 
@@ -111,16 +148,17 @@
 
 template<class KEY, class VALUE>
 ClientDescriptor<KEY, VALUE>::ClientDescriptor(const KEY& key, const VALUE& value, int32_t cost,
-        const std::set<KEY>& conflictingKeys, int32_t priority, int32_t ownerId) : mKey{key},
-        mValue{value}, mCost{cost}, mConflicting{conflictingKeys}, mPriority{priority},
+        const std::set<KEY>& conflictingKeys, int32_t score, int32_t ownerId, int32_t state) :
+        mKey{key}, mValue{value}, mCost{cost}, mConflicting{conflictingKeys},
+        mPriority(score, state),
         mOwnerId{ownerId} {}
 
 template<class KEY, class VALUE>
 ClientDescriptor<KEY, VALUE>::ClientDescriptor(KEY&& key, VALUE&& value, int32_t cost,
-        std::set<KEY>&& conflictingKeys, int32_t priority, int32_t ownerId) :
+        std::set<KEY>&& conflictingKeys, int32_t score, int32_t ownerId, int32_t state) :
         mKey{std::forward<KEY>(key)}, mValue{std::forward<VALUE>(value)}, mCost{cost},
-        mConflicting{std::forward<std::set<KEY>>(conflictingKeys)}, mPriority{priority},
-        mOwnerId{ownerId} {}
+        mConflicting{std::forward<std::set<KEY>>(conflictingKeys)},
+        mPriority(score, state), mOwnerId{ownerId} {}
 
 template<class KEY, class VALUE>
 ClientDescriptor<KEY, VALUE>::~ClientDescriptor() {}
@@ -141,7 +179,7 @@
 }
 
 template<class KEY, class VALUE>
-int32_t ClientDescriptor<KEY, VALUE>::getPriority() const {
+const ClientPriority& ClientDescriptor<KEY, VALUE>::getPriority() const {
     return mPriority;
 }
 
@@ -165,7 +203,7 @@
 }
 
 template<class KEY, class VALUE>
-void ClientDescriptor<KEY, VALUE>::setPriority(int32_t priority) {
+void ClientDescriptor<KEY, VALUE>::setPriority(const ClientPriority& priority) {
     mPriority = priority;
 }
 
@@ -231,7 +269,7 @@
      * Given a map containing owner (pid) -> priority mappings, update the priority of each
      * ClientDescriptor with an owner in this mapping.
      */
-    void updatePriorities(const std::map<int32_t,int32_t>& ownerPriorityList);
+    void updatePriorities(const std::map<int32_t,ClientPriority>& ownerPriorityList);
 
     /**
      * Remove all ClientDescriptors.
@@ -383,17 +421,17 @@
 
     const KEY& key = client->getKey();
     int32_t cost = client->getCost();
-    int32_t priority = client->getPriority();
+    ClientPriority priority = client->getPriority();
     int32_t owner = client->getOwnerId();
 
     int64_t totalCost = getCurrentCostLocked() + cost;
 
     // Determine the MRU of the owners tied for having the highest priority
     int32_t highestPriorityOwner = owner;
-    int32_t highestPriority = priority;
+    ClientPriority highestPriority = priority;
     for (const auto& i : mClients) {
-        int32_t curPriority = i->getPriority();
-        if (curPriority >= highestPriority) {
+        ClientPriority curPriority = i->getPriority();
+        if (curPriority <= highestPriority) {
             highestPriority = curPriority;
             highestPriorityOwner = i->getOwnerId();
         }
@@ -408,7 +446,7 @@
     for (const auto& i : mClients) {
         const KEY& curKey = i->getKey();
         int32_t curCost = i->getCost();
-        int32_t curPriority = i->getPriority();
+        ClientPriority curPriority = i->getPriority();
         int32_t curOwner = i->getOwnerId();
 
         bool conflicting = (curKey == key || i->isConflicting(key) ||
@@ -417,13 +455,13 @@
         if (!returnIncompatibleClients) {
             // Find evicted clients
 
-            if (conflicting && curPriority > priority) {
+            if (conflicting && curPriority < priority) {
                 // Pre-existing conflicting client with higher priority exists
                 evictList.clear();
                 evictList.push_back(client);
                 return evictList;
             } else if (conflicting || ((totalCost > mMaxCost && curCost > 0) &&
-                    (curPriority <= priority) &&
+                    (curPriority >= priority) &&
                     !(highestPriorityOwner == owner && owner == curOwner))) {
                 // Add a pre-existing client to the eviction list if:
                 // - We are adding a client with higher priority that conflicts with this one.
@@ -437,7 +475,7 @@
         } else {
             // Find clients preventing the incoming client from being added
 
-            if (curPriority > priority && (conflicting || (totalCost > mMaxCost && curCost > 0))) {
+            if (curPriority < priority && (conflicting || (totalCost > mMaxCost && curCost > 0))) {
                 // Pre-existing conflicting client with higher priority exists
                 evictList.push_back(i);
             }
@@ -524,7 +562,7 @@
 
 template<class KEY, class VALUE, class LISTENER>
 void ClientManager<KEY, VALUE, LISTENER>::updatePriorities(
-        const std::map<int32_t,int32_t>& ownerPriorityList) {
+        const std::map<int32_t,ClientPriority>& ownerPriorityList) {
     Mutex::Autolock lock(mLock);
     for (auto& i : mClients) {
         auto j = ownerPriorityList.find(i->getOwnerId());
diff --git a/services/mediaanalytics/Android.mk b/services/mediaanalytics/Android.mk
new file mode 100644
index 0000000..ef49df4
--- /dev/null
+++ b/services/mediaanalytics/Android.mk
@@ -0,0 +1,47 @@
+# Media Statistics service
+#
+LOCAL_PATH:= $(call my-dir)
+
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES:= \
+    main_mediametrics.cpp          \
+    MediaAnalyticsService.cpp
+
+LOCAL_SHARED_LIBRARIES := \
+    libcutils                   \
+    liblog                      \
+    libmedia                    \
+    libutils                    \
+    libbinder                   \
+    libdl                       \
+    libgui                      \
+    libmedia                    \
+    libmediautils               \
+    libstagefright_foundation   \
+    libutils
+
+LOCAL_STATIC_LIBRARIES := \
+        libregistermsext
+
+LOCAL_C_INCLUDES :=                                                 \
+    $(TOP)/frameworks/av/media/libstagefright/include               \
+    $(TOP)/frameworks/av/media/libstagefright/rtsp                  \
+    $(TOP)/frameworks/av/media/libstagefright/wifi-display          \
+    $(TOP)/frameworks/av/media/libstagefright/webm                  \
+    $(TOP)/frameworks/av/include/media                              \
+    $(TOP)/frameworks/av/include/camera                             \
+    $(TOP)/frameworks/native/include/media/openmax                  \
+    $(TOP)/frameworks/native/include/media/hardware                 \
+    $(TOP)/external/tremolo/Tremolo                                 \
+    libcore/include
+
+
+LOCAL_MODULE:= mediametrics
+
+LOCAL_INIT_RC := mediametrics.rc
+
+LOCAL_CFLAGS := -Werror -Wall -Wno-error=deprecated-declarations
+LOCAL_CLANG := true
+
+include $(BUILD_EXECUTABLE)
diff --git a/services/mediaanalytics/MediaAnalyticsService.cpp b/services/mediaanalytics/MediaAnalyticsService.cpp
new file mode 100644
index 0000000..35c1f5b
--- /dev/null
+++ b/services/mediaanalytics/MediaAnalyticsService.cpp
@@ -0,0 +1,583 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// Proxy for media player implementations
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "MediaAnalyticsService"
+#include <utils/Log.h>
+
+#include <inttypes.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <dirent.h>
+#include <unistd.h>
+
+#include <string.h>
+
+#include <cutils/atomic.h>
+#include <cutils/properties.h> // for property_get
+
+#include <utils/misc.h>
+
+#include <binder/IPCThreadState.h>
+#include <binder/IServiceManager.h>
+#include <binder/MemoryHeapBase.h>
+#include <binder/MemoryBase.h>
+#include <gui/Surface.h>
+#include <utils/Errors.h>  // for status_t
+#include <utils/List.h>
+#include <utils/String8.h>
+#include <utils/SystemClock.h>
+#include <utils/Timers.h>
+#include <utils/Vector.h>
+
+#include <media/AudioPolicyHelper.h>
+#include <media/IMediaHTTPService.h>
+#include <media/IRemoteDisplay.h>
+#include <media/IRemoteDisplayClient.h>
+#include <media/MediaPlayerInterface.h>
+#include <media/mediarecorder.h>
+#include <media/MediaMetadataRetrieverInterface.h>
+#include <media/Metadata.h>
+#include <media/AudioTrack.h>
+#include <media/MemoryLeakTrackUtil.h>
+#include <media/stagefright/MediaCodecList.h>
+#include <media/stagefright/MediaErrors.h>
+#include <media/stagefright/Utils.h>
+#include <media/stagefright/foundation/ADebug.h>
+#include <media/stagefright/foundation/ALooperRoster.h>
+#include <mediautils/BatteryNotifier.h>
+
+//#include <memunreachable/memunreachable.h>
+#include <system/audio.h>
+
+#include <private/android_filesystem_config.h>
+
+#include "MediaAnalyticsService.h"
+
+
+namespace android {
+
+
+#define DEBUG_QUEUE     0
+
+//using android::status_t;
+//using android::OK;
+//using android::BAD_VALUE;
+//using android::NOT_ENOUGH_DATA;
+//using android::Parcel;
+
+
+void MediaAnalyticsService::instantiate() {
+    defaultServiceManager()->addService(
+            String16("media.metrics"), new MediaAnalyticsService());
+}
+
+// XXX: add dynamic controls for mMaxRecords
+MediaAnalyticsService::MediaAnalyticsService()
+        : mMaxRecords(100) {
+
+    ALOGD("MediaAnalyticsService created");
+    // clear our queues
+    mOpen = new List<MediaAnalyticsItem *>();
+    mFinalized = new List<MediaAnalyticsItem *>();
+
+    mItemsSubmitted = 0;
+    mItemsFinalized = 0;
+    mItemsDiscarded = 0;
+
+    mLastSessionID = 0;
+    // recover any persistency we set up
+    // etc
+}
+
+MediaAnalyticsService::~MediaAnalyticsService() {
+        ALOGD("MediaAnalyticsService destroyed");
+
+    // XXX: clean out mOpen and mFinalized
+}
+
+
+MediaAnalyticsItem::SessionID_t MediaAnalyticsService::generateUniqueSessionID() {
+    // generate a new sessionid
+
+    Mutex::Autolock _l(mLock_ids);
+    return (++mLastSessionID);
+}
+
+// caller surrenders ownership of 'item'
+MediaAnalyticsItem::SessionID_t MediaAnalyticsService::submit(MediaAnalyticsItem *item, bool forcenew) {
+
+    MediaAnalyticsItem::SessionID_t id = MediaAnalyticsItem::SessionIDInvalid;
+
+    // we control these, generally not trusting user input
+    nsecs_t now = systemTime(SYSTEM_TIME_REALTIME);
+    item->setTimestamp(now);
+    int pid = IPCThreadState::self()->getCallingPid();
+    int uid = IPCThreadState::self()->getCallingUid();
+
+    int uid_given = item->getUid();
+    int pid_given = item->getPid();
+
+    // although we do make exceptions for particular client uids
+    // that we know we trust.
+    //
+    bool isTrusted = false;
+
+    switch (uid)  {
+        case AID_MEDIA:
+        case AID_MEDIA_CODEC:
+        case AID_MEDIA_EX:
+        case AID_MEDIA_DRM:
+            // trusted source, only override default values
+            isTrusted = true;
+            if (uid_given == (-1)) {
+                item->setUid(uid);
+            }
+            if (pid_given == (-1)) {
+                item->setPid(pid);
+            }
+            break;
+        default:
+            isTrusted = false;
+            item->setPid(pid);
+            item->setUid(uid);
+            break;
+    }
+
+
+    mItemsSubmitted++;
+
+    // validate the record; we discard if we don't like it
+    if (contentValid(item, isTrusted) == false) {
+        delete item;
+        return MediaAnalyticsItem::SessionIDInvalid;
+    }
+
+
+    // if we have a sesisonid in the new record, look to make
+    // sure it doesn't appear in the finalized list.
+    // XXX: this is for security / DOS prevention.
+    // may also require that we persist the unique sessionIDs
+    // across boots [instead of within a single boot]
+
+
+    // match this new record up against records in the open
+    // list...
+    // if there's a match, merge them together
+    // deal with moving the old / merged record into the finalized que
+
+    bool finalizing = item->getFinalized();
+
+    // if finalizing, we'll remove it
+    MediaAnalyticsItem *oitem = findItem(mOpen, item, finalizing | forcenew);
+    if (oitem != NULL) {
+        if (forcenew) {
+            // old one gets finalized, then we insert the new one
+            // so we'll have 2 records at the end of this.
+            // but don't finalize an empty record
+            if (oitem->count() == 0) {
+                // we're responsible for disposing of the dead record
+                delete oitem;
+                oitem = NULL;
+            } else {
+                oitem->setFinalized(true);
+                saveItem(mFinalized, oitem, 0);
+            }
+            // new record could itself be marked finalized...
+            if (finalizing) {
+                saveItem(mFinalized, item, 0);
+                mItemsFinalized++;
+            } else {
+                saveItem(mOpen, item, 1);
+            }
+            id = item->getSessionID();
+        } else {
+            // combine the records, send it to finalized if appropriate
+            oitem->merge(item);
+            if (finalizing) {
+                saveItem(mFinalized, oitem, 0);
+                mItemsFinalized++;
+            }
+            id = oitem->getSessionID();
+
+            // we're responsible for disposing of the dead record
+            delete item;
+            item = NULL;
+        }
+    } else {
+        // nothing to merge, save the new record
+        id = item->getSessionID();
+        if (finalizing) {
+            if (item->count() == 0) {
+                // drop empty records
+                delete item;
+                item = NULL;
+            } else {
+                saveItem(mFinalized, item, 0);
+                mItemsFinalized++;
+            }
+        } else {
+            saveItem(mOpen, item, 1);
+        }
+    }
+    return id;
+}
+
+List<MediaAnalyticsItem *> *MediaAnalyticsService::getMediaAnalyticsItemList(bool finished, nsecs_t ts) {
+    // this might never get called; the binder interface maps to the full parm list
+    // on the client side before making the binder call.
+    // but this lets us be sure...
+    List<MediaAnalyticsItem*> *list;
+    list = getMediaAnalyticsItemList(finished, ts, MediaAnalyticsItem::kKeyAny);
+    return list;
+}
+
+List<MediaAnalyticsItem *> *MediaAnalyticsService::getMediaAnalyticsItemList(bool , nsecs_t , MediaAnalyticsItem::Key ) {
+
+    // XXX: implement the get-item-list semantics
+
+    List<MediaAnalyticsItem *> *list = NULL;
+    // set up our query on the persistent data
+    // slurp in all of the pieces
+    // return that
+    return list;
+}
+
+status_t MediaAnalyticsService::dump(int fd, const Vector<String16>& args)
+{
+    const size_t SIZE = 512;
+    char buffer[SIZE];
+    String8 result;
+
+    if (checkCallingPermission(String16("android.permission.DUMP")) == false) {
+        snprintf(buffer, SIZE, "Permission Denial: "
+                "can't dump MediaAnalyticsService from pid=%d, uid=%d\n",
+                IPCThreadState::self()->getCallingPid(),
+                IPCThreadState::self()->getCallingUid());
+        result.append(buffer);
+        write(fd, result.string(), result.size());
+        return NO_ERROR;
+    }
+
+    // crack any parameters
+    bool clear = false;
+    nsecs_t ts_since = 0;
+    String16 clearOption("-clear");
+    String16 sinceOption("-since");
+    String16 helpOption("-help");
+    int n = args.size();
+    for (int i = 0; i < n; i++) {
+        String8 myarg(args[i]);
+        if (args[i] == clearOption) {
+            clear = true;
+        } else if (args[i] == sinceOption) {
+            i++;
+            if (i < n) {
+                String8 value(args[i]);
+                char *endp;
+                const char *p = value.string();
+                ts_since = strtoll(p, &endp, 10);
+                if (endp == p || *endp != '\0') {
+                    ts_since = 0;
+                }
+            } else {
+                ts_since = 0;
+            }
+            // command line is milliseconds; internal units are nano-seconds
+            ts_since *= 1000*1000;
+        } else if (args[i] == helpOption) {
+            result.append("Recognized parameters:\n");
+            result.append("-help        this help message\n");
+            result.append("-clear       clears out saved records\n");
+            result.append("-since XXX   include records since XXX\n");
+            result.append("             (XXX is milliseconds since the UNIX epoch)\n");
+            write(fd, result.string(), result.size());
+            return NO_ERROR;
+        }
+    }
+
+    Mutex::Autolock _l(mLock);
+
+    snprintf(buffer, SIZE, "Dump of the mediametrics process:\n");
+    result.append(buffer);
+
+    int enabled = MediaAnalyticsItem::isEnabled();
+    if (enabled) {
+        snprintf(buffer, SIZE, "Metrics gathering: enabled\n");
+    } else {
+        snprintf(buffer, SIZE, "Metrics gathering: DISABLED via property\n");
+    }
+    result.append(buffer);
+
+    snprintf(buffer, SIZE,
+        "Since Boot: Submissions: %" PRId64
+            " Finalizations: %" PRId64
+        " Discarded: %" PRId64 "\n",
+        mItemsSubmitted, mItemsFinalized, mItemsDiscarded);
+    result.append(buffer);
+    if (ts_since != 0) {
+        snprintf(buffer, SIZE,
+            "Dumping Queue entries more recent than: %" PRId64 "\n",
+            (int64_t) ts_since);
+        result.append(buffer);
+    }
+
+    // show the recently recorded records
+    snprintf(buffer, sizeof(buffer), "\nFinalized Metrics (oldest first):\n");
+    result.append(buffer);
+    result.append(this->dumpQueue(mFinalized, ts_since));
+
+    snprintf(buffer, sizeof(buffer), "\nIn-Progress Metrics (newest first):\n");
+    result.append(buffer);
+    result.append(this->dumpQueue(mOpen, ts_since));
+
+    // show who is connected and injecting records?
+    // talk about # records fed to the 'readers'
+    // talk about # records we discarded, perhaps "discarded w/o reading" too
+
+    if (clear) {
+        // remove everything from the finalized queue
+        while (mFinalized->size() > 0) {
+            MediaAnalyticsItem * oitem = *(mFinalized->begin());
+            if (DEBUG_QUEUE) {
+                ALOGD("zap old record: key %s sessionID %" PRId64 " ts %" PRId64 "",
+                    oitem->getKey().c_str(), oitem->getSessionID(),
+                    oitem->getTimestamp());
+            }
+            mFinalized->erase(mFinalized->begin());
+            mItemsDiscarded++;
+        }
+    }
+
+    write(fd, result.string(), result.size());
+    return NO_ERROR;
+}
+
+// caller has locked mLock...
+String8 MediaAnalyticsService::dumpQueue(List<MediaAnalyticsItem *> *theList) {
+    return dumpQueue(theList, (nsecs_t) 0);
+}
+
+String8 MediaAnalyticsService::dumpQueue(List<MediaAnalyticsItem *> *theList, nsecs_t ts_since) {
+    String8 result;
+    int slot = 0;
+
+    if (theList->empty()) {
+            result.append("empty\n");
+    } else {
+        List<MediaAnalyticsItem *>::iterator it = theList->begin();
+        for (; it != theList->end(); it++) {
+            nsecs_t when = (*it)->getTimestamp();
+            if (when < ts_since) {
+                continue;
+            }
+            AString entry = (*it)->toString();
+            result.appendFormat("%5d: %s\n", slot, entry.c_str());
+            slot++;
+        }
+    }
+
+    return result;
+}
+
+//
+// Our Cheap in-core, non-persistent records management.
+// XXX: rewrite this to manage persistence, etc.
+
+// insert appropriately into queue
+void MediaAnalyticsService::saveItem(List<MediaAnalyticsItem *> *l, MediaAnalyticsItem * item, int front) {
+
+    Mutex::Autolock _l(mLock);
+
+    if (DEBUG_QUEUE) {
+        ALOGD("Inject a record: session %" PRId64 " ts %" PRId64 "",
+            item->getSessionID(), item->getTimestamp());
+        String8 before = dumpQueue(l);
+        ALOGD("Q before insert: %s", before.string());
+    }
+
+    // adding at back of queue (fifo order)
+    if (front)  {
+        l->push_front(item);
+    } else {
+        l->push_back(item);
+    }
+
+    if (DEBUG_QUEUE) {
+        String8 after = dumpQueue(l);
+        ALOGD("Q after insert: %s", after.string());
+    }
+
+    // keep removing old records the front until we're in-bounds
+    if (mMaxRecords > 0) {
+        while (l->size() > (size_t) mMaxRecords) {
+            MediaAnalyticsItem * oitem = *(l->begin());
+            if (DEBUG_QUEUE) {
+                ALOGD("zap old record: key %s sessionID %" PRId64 " ts %" PRId64 "",
+                    oitem->getKey().c_str(), oitem->getSessionID(),
+                    oitem->getTimestamp());
+            }
+            l->erase(l->begin());
+            delete oitem;
+            mItemsDiscarded++;
+        }
+    }
+
+    if (DEBUG_QUEUE) {
+        String8 after = dumpQueue(l);
+        ALOGD("Q after cleanup: %s", after.string());
+    }
+}
+
+// are they alike enough that nitem can be folded into oitem?
+static bool compatibleItems(MediaAnalyticsItem * oitem, MediaAnalyticsItem * nitem) {
+
+    if (0) {
+        ALOGD("Compare: o %s n %s",
+              oitem->toString().c_str(), nitem->toString().c_str());
+    }
+
+    // general safety
+    if (nitem->getUid() != oitem->getUid()) {
+        return false;
+    }
+    if (nitem->getPid() != oitem->getPid()) {
+        return false;
+    }
+
+    // key -- needs to match
+    if (nitem->getKey() == oitem->getKey()) {
+        // still in the game.
+    } else {
+        return false;
+    }
+
+    // session id -- empty field in new is allowed
+    MediaAnalyticsItem::SessionID_t osession = oitem->getSessionID();
+    MediaAnalyticsItem::SessionID_t nsession = nitem->getSessionID();
+    if (nsession != osession) {
+        // incoming '0' matches value in osession
+        if (nsession != 0) {
+            return false;
+        }
+    }
+
+    return true;
+}
+
+// find the incomplete record that this will overlay
+MediaAnalyticsItem *MediaAnalyticsService::findItem(List<MediaAnalyticsItem*> *theList, MediaAnalyticsItem *nitem, bool removeit) {
+    if (nitem == NULL) {
+        return NULL;
+    }
+
+    MediaAnalyticsItem *item = NULL;
+
+    Mutex::Autolock _l(mLock);
+
+    for (List<MediaAnalyticsItem *>::iterator it = theList->begin();
+        it != theList->end(); it++) {
+        MediaAnalyticsItem *tmp = (*it);
+
+        if (!compatibleItems(tmp, nitem)) {
+            continue;
+        }
+
+        // we match! this is the one I want.
+        if (removeit) {
+            theList->erase(it);
+        }
+        item = tmp;
+        break;
+    }
+    return item;
+}
+
+
+// delete the indicated record
+void MediaAnalyticsService::deleteItem(List<MediaAnalyticsItem *> *l, MediaAnalyticsItem *item) {
+
+    Mutex::Autolock _l(mLock);
+
+    if(DEBUG_QUEUE) {
+        String8 before = dumpQueue(l);
+        ALOGD("Q before delete: %s", before.string());
+    }
+
+    for (List<MediaAnalyticsItem *>::iterator it = l->begin();
+        it != l->end(); it++) {
+        if ((*it)->getSessionID() != item->getSessionID())
+            continue;
+
+        if (DEBUG_QUEUE) {
+            ALOGD(" --- removing record for SessionID %" PRId64 "", item->getSessionID());
+            ALOGD("drop record at %s:%d", __FILE__, __LINE__);
+        }
+        delete *it;
+        l->erase(it);
+        break;
+    }
+
+    if (DEBUG_QUEUE) {
+        String8 after = dumpQueue(l);
+        ALOGD("Q after delete: %s", after.string());
+    }
+}
+
+static AString allowedKeys[] =
+{
+    "codec",
+    "extractor"
+};
+
+static const int nAllowedKeys = sizeof(allowedKeys) / sizeof(allowedKeys[0]);
+
+// are the contents good
+bool MediaAnalyticsService::contentValid(MediaAnalyticsItem *item, bool isTrusted) {
+
+    // untrusted uids can only send us a limited set of keys
+    if (isTrusted == false) {
+        // restrict to a specific set of keys
+        AString key = item->getKey();
+
+        size_t i;
+        for(i = 0; i < nAllowedKeys; i++) {
+            if (key == allowedKeys[i]) {
+                break;
+            }
+        }
+        if (i == nAllowedKeys) {
+            ALOGD("Ignoring (key): %s", item->toString().c_str());
+            return false;
+        }
+    }
+
+    // internal consistency
+
+    return true;
+}
+
+// are we rate limited, normally false
+bool MediaAnalyticsService::rateLimited(MediaAnalyticsItem *) {
+
+    return false;
+}
+
+
+} // namespace android
diff --git a/services/mediaanalytics/MediaAnalyticsService.h b/services/mediaanalytics/MediaAnalyticsService.h
new file mode 100644
index 0000000..d2b0f09
--- /dev/null
+++ b/services/mediaanalytics/MediaAnalyticsService.h
@@ -0,0 +1,98 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+#ifndef ANDROID_MEDIAANALYTICSSERVICE_H
+#define ANDROID_MEDIAANALYTICSSERVICE_H
+
+#include <arpa/inet.h>
+
+#include <utils/threads.h>
+#include <utils/Errors.h>
+#include <utils/KeyedVector.h>
+#include <utils/String8.h>
+#include <utils/List.h>
+
+#include <media/IMediaAnalyticsService.h>
+
+
+namespace android {
+
+class MediaAnalyticsService : public BnMediaAnalyticsService
+{
+
+ public:
+
+    // on this side, caller surrenders ownership
+    virtual int64_t submit(MediaAnalyticsItem *item, bool forcenew);
+
+    virtual List<MediaAnalyticsItem *>
+            *getMediaAnalyticsItemList(bool finished, int64_t ts);
+    virtual List<MediaAnalyticsItem *>
+            *getMediaAnalyticsItemList(bool finished, int64_t ts, MediaAnalyticsItem::Key key);
+
+
+    static  void            instantiate();
+    virtual status_t        dump(int fd, const Vector<String16>& args);
+
+                            MediaAnalyticsService();
+    virtual                 ~MediaAnalyticsService();
+
+ private:
+    MediaAnalyticsItem::SessionID_t generateUniqueSessionID();
+
+    // statistics about our analytics
+    int64_t mItemsSubmitted;
+    int64_t mItemsFinalized;
+    int64_t mItemsDiscarded;
+    MediaAnalyticsItem::SessionID_t mLastSessionID;
+
+    // partitioned a bit so we don't over serialize
+    mutable Mutex           mLock;
+    mutable Mutex           mLock_ids;
+
+    // the most we hold in memory
+    // up to this many in each queue (open, finalized)
+    int32_t mMaxRecords;
+
+    // input validation after arrival from client
+    bool contentValid(MediaAnalyticsItem *item, bool isTrusted);
+    bool rateLimited(MediaAnalyticsItem *);
+
+    // the ones that are still open
+    // (newest at front) since we keep looking for them
+    List<MediaAnalyticsItem *> *mOpen;
+    // the ones we've finalized
+    // (oldest at front) so it prints nicely for dumpsys
+    List<MediaAnalyticsItem *> *mFinalized;
+    // searching within these queues: queue, key
+    MediaAnalyticsItem *findItem(List<MediaAnalyticsItem *> *,
+                                     MediaAnalyticsItem *, bool removeit);
+
+    void saveItem(MediaAnalyticsItem);
+    void saveItem(List<MediaAnalyticsItem *> *, MediaAnalyticsItem *, int);
+    void deleteItem(List<MediaAnalyticsItem *> *, MediaAnalyticsItem *);
+
+    String8 dumpQueue(List<MediaAnalyticsItem*> *);
+    String8 dumpQueue(List<MediaAnalyticsItem*> *, nsecs_t);
+
+};
+
+// ----------------------------------------------------------------------------
+
+}; // namespace android
+
+#endif // ANDROID_MEDIAANALYTICSSERVICE_H
diff --git a/services/mediaanalytics/main_mediametrics.cpp b/services/mediaanalytics/main_mediametrics.cpp
new file mode 100644
index 0000000..8020a03
--- /dev/null
+++ b/services/mediaanalytics/main_mediametrics.cpp
@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "mediametrics"
+//#define LOG_NDEBUG 0
+
+#include <binder/IPCThreadState.h>
+#include <binder/ProcessState.h>
+#include <binder/IServiceManager.h>
+#include <utils/Log.h>
+//#include "RegisterExtensions.h"
+
+// from LOCAL_C_INCLUDES
+#include "MediaAnalyticsService.h"
+
+using namespace android;
+
+int main(int argc __unused, char **argv __unused)
+{
+    signal(SIGPIPE, SIG_IGN);
+
+    // to match the service name
+    // we're replacing "/system/bin/mediametrics" with "media.metrics"
+    // we add a ".", but discard the path components: we finish with a shorter string
+    strcpy(argv[0], "media.metrics");
+
+    sp<ProcessState> proc(ProcessState::self());
+    sp<IServiceManager> sm(defaultServiceManager());
+    ALOGI("ServiceManager: %p", sm.get());
+
+    MediaAnalyticsService::instantiate();
+
+    ProcessState::self()->startThreadPool();
+    IPCThreadState::self()->joinThreadPool();
+}
diff --git a/services/mediaanalytics/mediametrics.rc b/services/mediaanalytics/mediametrics.rc
new file mode 100644
index 0000000..3829f8c
--- /dev/null
+++ b/services/mediaanalytics/mediametrics.rc
@@ -0,0 +1,5 @@
+service mediametrics /system/bin/mediametrics
+    class main
+    user media
+    ioprio rt 4
+    writepid /dev/cpuset/foreground/tasks /dev/stune/foreground/tasks
diff --git a/services/mediacodec/Android.mk b/services/mediacodec/Android.mk
index a5f0751..8814cf2 100644
--- a/services/mediacodec/Android.mk
+++ b/services/mediacodec/Android.mk
@@ -3,7 +3,13 @@
 # service library
 include $(CLEAR_VARS)
 LOCAL_SRC_FILES := MediaCodecService.cpp
-LOCAL_SHARED_LIBRARIES := libmedia libbinder libutils liblog libstagefright_omx
+LOCAL_SHARED_LIBRARIES := \
+    libmedia \
+    libbinder \
+    libgui \
+    libutils \
+    liblog \
+    libstagefright_omx
 LOCAL_C_INCLUDES := \
     $(TOP)/frameworks/av/media/libstagefright \
     $(TOP)/frameworks/native/include/media/openmax
@@ -14,17 +20,46 @@
 
 # service executable
 include $(CLEAR_VARS)
-LOCAL_REQUIRED_MODULES_arm := mediacodec-seccomp.policy
-LOCAL_SRC_FILES := main_codecservice.cpp minijail/minijail.cpp
-LOCAL_SHARED_LIBRARIES := libmedia libmediacodecservice libbinder libutils \
-	liblog libminijail
+LOCAL_REQUIRED_MODULES_arm := mediacodec.policy
+LOCAL_SRC_FILES := main_codecservice.cpp
+LOCAL_SHARED_LIBRARIES := \
+    libmedia \
+    libmediacodecservice \
+    libbinder \
+    libutils \
+    libgui \
+    liblog \
+    libbase \
+    libavservices_minijail \
+    libcutils \
+    libhwbinder \
+    libhidltransport \
+    android.hardware.media.omx@1.0 \
+    android.hardware.media.omx@1.0-impl \
+    android.hidl.memory@1.0
 LOCAL_C_INCLUDES := \
     $(TOP)/frameworks/av/media/libstagefright \
+    $(TOP)/frameworks/av/media/libstagefright/include \
     $(TOP)/frameworks/native/include/media/openmax
-LOCAL_MODULE:= mediacodec
+LOCAL_MODULE := mediacodec
 LOCAL_32_BIT_ONLY := true
 LOCAL_INIT_RC := mediacodec.rc
 include $(BUILD_EXECUTABLE)
 
-include $(call all-makefiles-under, $(LOCAL_PATH))
+# service seccomp policy
+ifeq ($(TARGET_ARCH), $(filter $(TARGET_ARCH), arm arm64))
+include $(CLEAR_VARS)
+LOCAL_MODULE := mediacodec.policy
+LOCAL_MODULE_CLASS := ETC
+LOCAL_MODULE_PATH := $(TARGET_OUT)/etc/seccomp_policy
+# mediacodec runs in 32-bit combatibility mode. For 64 bit architectures,
+# use the 32 bit policy
+ifdef TARGET_2ND_ARCH
+    LOCAL_SRC_FILES := seccomp_policy/mediacodec-$(TARGET_2ND_ARCH).policy
+else
+    LOCAL_SRC_FILES := seccomp_policy/mediacodec-$(TARGET_ARCH).policy
+endif
+include $(BUILD_PREBUILT)
+endif
 
+include $(call all-makefiles-under, $(LOCAL_PATH))
diff --git a/services/mediacodec/main_codecservice.cpp b/services/mediacodec/main_codecservice.cpp
index a2868c1..ef305b4 100644
--- a/services/mediacodec/main_codecservice.cpp
+++ b/services/mediacodec/main_codecservice.cpp
@@ -15,33 +15,62 @@
 ** limitations under the License.
 */
 
-#define LOG_TAG "mediacodec"
-//#define LOG_NDEBUG 0
-
 #include <fcntl.h>
 #include <sys/prctl.h>
 #include <sys/wait.h>
 #include <binder/IPCThreadState.h>
 #include <binder/ProcessState.h>
 #include <binder/IServiceManager.h>
-#include <utils/Log.h>
+#include <cutils/properties.h>
+
+#include <string>
+
+#include <android-base/logging.h>
 
 // from LOCAL_C_INCLUDES
 #include "MediaCodecService.h"
-#include "minijail/minijail.h"
+#include "minijail.h"
+
+#include <android/hardware/media/omx/1.0/IOmx.h>
+#include <hidl/HidlTransportSupport.h>
+#include <omx/hal/1.0/impl/Omx.h>
 
 using namespace android;
 
+// Must match location in Android.mk.
+static const char kSystemSeccompPolicyPath[] =
+        "/system/etc/seccomp_policy/mediacodec.policy";
+static const char kVendorSeccompPolicyPath[] =
+        "/vendor/etc/seccomp_policy/mediacodec.policy";
+
 int main(int argc __unused, char** argv)
 {
-    ALOGI("@@@ mediacodecservice starting");
+    LOG(INFO) << "mediacodecservice starting";
     signal(SIGPIPE, SIG_IGN);
-    MiniJail();
+    SetUpMinijail(kSystemSeccompPolicyPath, kVendorSeccompPolicyPath);
 
     strcpy(argv[0], "media.codec");
+
+    ::android::hardware::configureRpcThreadpool(64, false);
     sp<ProcessState> proc(ProcessState::self());
-    sp<IServiceManager> sm = defaultServiceManager();
-    MediaCodecService::instantiate();
+
+    int32_t trebleOmx = property_get_int32("persist.media.treble_omx", -1);
+    if ((trebleOmx == 1) || ((trebleOmx == -1) &&
+            property_get_bool("persist.hal.binderization", 0))) {
+        using namespace ::android::hardware::media::omx::V1_0;
+        sp<IOmx> omx = new implementation::Omx();
+        if (omx == nullptr) {
+            LOG(ERROR) << "Cannot create a Treble IOmx service.";
+        } else if (omx->registerAsService() != OK) {
+            LOG(ERROR) << "Cannot register a Treble IOmx service.";
+        } else {
+            LOG(INFO) << "Treble IOmx service created.";
+        }
+    } else {
+        MediaCodecService::instantiate();
+        LOG(INFO) << "Non-Treble IOMX service created.";
+    }
+
     ProcessState::self()->startThreadPool();
     IPCThreadState::self()->joinThreadPool();
 }
diff --git a/services/mediacodec/minijail/Android.mk b/services/mediacodec/minijail/Android.mk
deleted file mode 100644
index de05bc3..0000000
--- a/services/mediacodec/minijail/Android.mk
+++ /dev/null
@@ -1,27 +0,0 @@
-LOCAL_PATH := $(call my-dir)
-
-ifeq ($(TARGET_ARCH), $(filter $(TARGET_ARCH), arm arm64))
-include $(CLEAR_VARS)
-LOCAL_MODULE := mediacodec-seccomp.policy
-LOCAL_MODULE_CLASS := ETC
-LOCAL_MODULE_PATH := $(TARGET_OUT)/etc/seccomp_policy
-
-# mediacodec runs in 32-bit combatibility mode. For 64 bit architectures,
-# use the 32 bit policy
-ifdef TARGET_2ND_ARCH
-    LOCAL_SRC_FILES := $(LOCAL_PATH)/seccomp_policy/mediacodec-seccomp-$(TARGET_2ND_ARCH).policy
-else
-    LOCAL_SRC_FILES := $(LOCAL_PATH)/seccomp_policy/mediacodec-seccomp-$(TARGET_ARCH).policy
-endif
-
-# allow device specific additions to the syscall whitelist
-LOCAL_SRC_FILES += $(wildcard $(foreach dir, $(BOARD_SECCOMP_POLICY), \
-                     $(dir)/mediacodec-seccomp.policy))
-
-include $(BUILD_SYSTEM)/base_rules.mk
-
-$(LOCAL_BUILT_MODULE): $(LOCAL_SRC_FILES)
-	@mkdir -p $(dir $@)
-	$(hide) cat > $@ $^
-
-endif
diff --git a/services/mediacodec/minijail/minijail.cpp b/services/mediacodec/minijail/minijail.cpp
deleted file mode 100644
index 463f161..0000000
--- a/services/mediacodec/minijail/minijail.cpp
+++ /dev/null
@@ -1,55 +0,0 @@
-/*
-**
-** Copyright 2016, The Android Open Source Project
-**
-** Licensed under the Apache License, Version 2.0 (the "License");
-** you may not use this file except in compliance with the License.
-** You may obtain a copy of the License at
-**
-**     http://www.apache.org/licenses/LICENSE-2.0
-**
-** Unless required by applicable law or agreed to in writing, software
-** distributed under the License is distributed on an "AS IS" BASIS,
-** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-** See the License for the specific language governing permissions and
-** limitations under the License.
-*/
-
-#define LOG_TAG "minijail"
-
-#include <unistd.h>
-
-#include <log/log.h>
-
-#include <libminijail.h>
-
-#include "minijail.h"
-
-namespace android {
-
-/* Must match location in Android.mk */
-static const char kSeccompFilePath[] = "/system/etc/seccomp_policy/mediacodec-seccomp.policy";
-
-int MiniJail()
-{
-    /* no seccomp policy for this architecture */
-    if (access(kSeccompFilePath, R_OK) == -1) {
-        ALOGW("No seccomp filter defined for this architecture.");
-        return 0;
-    }
-
-    struct minijail *jail = minijail_new();
-    if (jail == NULL) {
-        ALOGW("Failed to create minijail.");
-        return -1;
-    }
-
-    minijail_no_new_privs(jail);
-    minijail_log_seccomp_filter_failures(jail);
-    minijail_use_seccomp_filter(jail);
-    minijail_parse_seccomp_filters(jail, kSeccompFilePath);
-    minijail_enter(jail);
-    minijail_destroy(jail);
-    return 0;
-}
-}
diff --git a/services/mediacodec/minijail/minijail.h b/services/mediacodec/minijail/minijail.h
deleted file mode 100644
index ae01470..0000000
--- a/services/mediacodec/minijail/minijail.h
+++ /dev/null
@@ -1,20 +0,0 @@
-/*
-**
-** Copyright 2016, The Android Open Source Project
-**
-** Licensed under the Apache License, Version 2.0 (the "License");
-** you may not use this file except in compliance with the License.
-** You may obtain a copy of the License at
-**
-**     http://www.apache.org/licenses/LICENSE-2.0
-**
-** Unless required by applicable law or agreed to in writing, software
-** distributed under the License is distributed on an "AS IS" BASIS,
-** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-** See the License for the specific language governing permissions and
-** limitations under the License.
-*/
-
-namespace android {
-int MiniJail();
-}
diff --git a/services/mediacodec/minijail/seccomp_policy/mediacodec-seccomp-arm.policy b/services/mediacodec/minijail/seccomp_policy/mediacodec-seccomp-arm.policy
deleted file mode 100644
index 0afaa15..0000000
--- a/services/mediacodec/minijail/seccomp_policy/mediacodec-seccomp-arm.policy
+++ /dev/null
@@ -1,51 +0,0 @@
-# Organized by frequency of systemcall - in descending order for
-# best performance.
-futex: 1
-ioctl: 1
-write: 1
-prctl: 1
-clock_gettime: 1
-getpriority: 1
-read: 1
-close: 1
-writev: 1
-dup: 1
-ppoll: 1
-mmap2: 1
-munmap: 1
-mprotect: 1
-madvise: 1
-openat: 1
-sigaltstack: 1
-clone: 1
-setpriority: 1
-getuid32: 1
-fstat64: 1
-pread64: 1
-faccessat: 1
-readlinkat: 1
-exit: 1
-rt_sigprocmask: 1
-set_tid_address: 1
-restart_syscall: 1
-exit_group: 1
-rt_sigreturn: 1
-pipe2: 1
-gettimeofday: 1
-sched_yield: 1
-nanosleep: 1
-lseek: 1
-sched_get_priority_max: 1
-sched_get_priority_min: 1
-statfs64: 1
-sched_setscheduler: 1
-fstatat64: 1
-ugetrlimit: 1
-
-# for attaching to debuggerd on process crash
-sigaction: 1
-tgkill: 1
-socket: 1
-connect: 1
-fcntl64: 1
-rt_tgsigqueueinfo: 1
diff --git a/services/mediacodec/seccomp_policy/mediacodec-arm.policy b/services/mediacodec/seccomp_policy/mediacodec-arm.policy
new file mode 100644
index 0000000..890d777
--- /dev/null
+++ b/services/mediacodec/seccomp_policy/mediacodec-arm.policy
@@ -0,0 +1,66 @@
+# Organized by frequency of systemcall - in descending order for
+# best performance.
+futex: 1
+ioctl: 1
+write: 1
+prctl: 1
+clock_gettime: 1
+getpriority: 1
+read: 1
+close: 1
+writev: 1
+dup: 1
+ppoll: 1
+mmap2: 1
+
+# mremap: Ensure |flags| are (MREMAP_MAYMOVE | MREMAP_FIXED) TODO: Once minijail
+# parser support for '<' is in this needs to be modified to also prevent
+# |old_address| and |new_address| from touching the exception vector page, which
+# on ARM is statically loaded at 0xffff 0000. See
+# http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.ddi0211h/Babfeega.html
+# for more details.
+mremap: arg3 == 3
+munmap: 1
+mprotect: 1
+madvise: 1
+openat: 1
+sigaltstack: 1
+clone: 1
+setpriority: 1
+getuid32: 1
+fstat64: 1
+pread64: 1
+faccessat: 1
+readlinkat: 1
+exit: 1
+rt_sigprocmask: 1
+set_tid_address: 1
+restart_syscall: 1
+exit_group: 1
+rt_sigreturn: 1
+pipe2: 1
+gettimeofday: 1
+sched_yield: 1
+nanosleep: 1
+lseek: 1
+_llseek: 1
+sched_get_priority_max: 1
+sched_get_priority_min: 1
+statfs64: 1
+sched_setscheduler: 1
+fstatat64: 1
+ugetrlimit: 1
+getdents64: 1
+
+# for attaching to debuggerd on process crash
+sigaction: 1
+tgkill: 1
+socket: 1
+connect: 1
+fcntl64: 1
+rt_tgsigqueueinfo: 1
+geteuid32: 1
+getgid32: 1
+getegid32: 1
+getgroups32: 1
+recvmsg: 1
diff --git a/services/mediadrm/Android.mk b/services/mediadrm/Android.mk
index 4ce5c38..87fddd4 100644
--- a/services/mediadrm/Android.mk
+++ b/services/mediadrm/Android.mk
@@ -16,20 +16,28 @@
 
 include $(CLEAR_VARS)
 
-
 LOCAL_SRC_FILES:= \
+    MediaCasService.cpp \
     MediaDrmService.cpp \
     main_mediadrmserver.cpp
 
 LOCAL_SHARED_LIBRARIES:= \
     libbinder \
-    libcutils \
     liblog \
-    libmedia \
     libmediadrm \
-    libutils \
+    libutils
+ifneq ($(DISABLE_TREBLE_DRM), true)
+LOCAL_SHARED_LIBRARIES += \
+    libhidlbase \
+    libhidlmemory \
+    android.hidl.base@1.0 \
+    android.hardware.drm@1.0
+endif
 
 LOCAL_CFLAGS += -Wall -Wextra -Werror
+ifeq ($(DISABLE_TREBLE_DRM), true)
+LOCAL_CFLAGS += -DDISABLE_TREBLE_DRM=1
+endif
 
 LOCAL_MODULE:= mediadrmserver
 LOCAL_32_BIT_ONLY := true
diff --git a/services/mediadrm/FactoryLoader.h b/services/mediadrm/FactoryLoader.h
new file mode 100644
index 0000000..1e03e9b
--- /dev/null
+++ b/services/mediadrm/FactoryLoader.h
@@ -0,0 +1,220 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef MEDIA_CAS_LOADER_H_
+#define MEDIA_CAS_LOADER_H_
+
+#include <dirent.h>
+#include <dlfcn.h>
+#include <media/SharedLibrary.h>
+#include <utils/KeyedVector.h>
+#include <utils/Mutex.h>
+
+namespace android {
+using namespace std;
+using namespace media;
+using namespace MediaCas;
+
+template <class T>
+class FactoryLoader {
+public:
+    FactoryLoader(const char *name) :
+        mFactory(NULL), mCreateFactoryFuncName(name) {}
+
+    virtual ~FactoryLoader() { closeFactory(); }
+
+    bool findFactoryForScheme(
+            int32_t CA_system_id,
+            sp<SharedLibrary> *library = NULL,
+            T** factory = NULL);
+
+    bool enumeratePlugins(vector<ParcelableCasPluginDescriptor>* results);
+
+private:
+    typedef T*(*CreateFactoryFunc)();
+
+    Mutex mMapLock;
+    T* mFactory;
+    const char *mCreateFactoryFuncName;
+    sp<SharedLibrary> mLibrary;
+    KeyedVector<int32_t, String8> mCASystemIdToLibraryPathMap;
+    KeyedVector<String8, wp<SharedLibrary> > mLibraryPathToOpenLibraryMap;
+
+    bool loadFactoryForSchemeFromPath(
+            const String8 &path,
+            int32_t CA_system_id,
+            sp<SharedLibrary> *library,
+            T** factory);
+
+    bool queryPluginsFromPath(
+            const String8 &path,
+            vector<ParcelableCasPluginDescriptor>* results);
+
+    bool openFactory(const String8 &path);
+    void closeFactory();
+};
+
+template <class T>
+bool FactoryLoader<T>::findFactoryForScheme(
+        int32_t CA_system_id, sp<SharedLibrary> *library, T** factory) {
+    if (library != NULL) {
+        library->clear();
+    }
+    if (factory != NULL) {
+        *factory = NULL;
+    }
+
+    Mutex::Autolock autoLock(mMapLock);
+
+    // first check cache
+    ssize_t index = mCASystemIdToLibraryPathMap.indexOfKey(CA_system_id);
+    if (index >= 0) {
+        return loadFactoryForSchemeFromPath(
+                mCASystemIdToLibraryPathMap[index],
+                CA_system_id, library, factory);
+    }
+
+    // no luck, have to search
+    String8 dirPath("/vendor/lib/mediacas");
+    DIR* pDir = opendir(dirPath.string());
+
+    if (pDir == NULL) {
+        ALOGE("Failed to open plugin directory %s", dirPath.string());
+        return false;
+    }
+
+    struct dirent* pEntry;
+    while ((pEntry = readdir(pDir))) {
+        String8 pluginPath = dirPath + "/" + pEntry->d_name;
+        if (pluginPath.getPathExtension() == ".so") {
+            if (loadFactoryForSchemeFromPath(
+                    pluginPath, CA_system_id, library, factory)) {
+                mCASystemIdToLibraryPathMap.add(CA_system_id, pluginPath);
+                closedir(pDir);
+
+                return true;
+            }
+        }
+    }
+
+    closedir(pDir);
+
+    ALOGE("Failed to find plugin");
+    return false;
+}
+
+template <class T>
+bool FactoryLoader<T>::enumeratePlugins(
+        vector<ParcelableCasPluginDescriptor>* results) {
+    ALOGI("enumeratePlugins");
+
+    results->clear();
+
+    String8 dirPath("/vendor/lib/mediacas");
+    DIR* pDir = opendir(dirPath.string());
+
+    if (pDir == NULL) {
+        ALOGE("Failed to open plugin directory %s", dirPath.string());
+        return false;
+    }
+
+    Mutex::Autolock autoLock(mMapLock);
+
+    struct dirent* pEntry;
+    while ((pEntry = readdir(pDir))) {
+        String8 pluginPath = dirPath + "/" + pEntry->d_name;
+        if (pluginPath.getPathExtension() == ".so") {
+            queryPluginsFromPath(pluginPath, results);
+        }
+    }
+    return true;
+}
+
+template <class T>
+bool FactoryLoader<T>::loadFactoryForSchemeFromPath(
+        const String8 &path, int32_t CA_system_id,
+        sp<SharedLibrary> *library, T** factory) {
+    closeFactory();
+
+    if (!openFactory(path) || !mFactory->isSystemIdSupported(CA_system_id)) {
+        closeFactory();
+        return false;
+    }
+
+    if (library != NULL) {
+        *library = mLibrary;
+    }
+    if (factory != NULL) {
+        *factory = mFactory;
+    }
+    return true;
+}
+
+template <class T>
+bool FactoryLoader<T>::queryPluginsFromPath(
+        const String8 &path, vector<ParcelableCasPluginDescriptor>* results) {
+    closeFactory();
+
+    vector<CasPluginDescriptor> descriptors;
+    if (!openFactory(path) || mFactory->queryPlugins(&descriptors) != OK) {
+        closeFactory();
+        return false;
+    }
+
+    for (auto it = descriptors.begin(); it != descriptors.end(); it++) {
+        results->push_back(ParcelableCasPluginDescriptor(
+                it->CA_system_id, it->name));
+    }
+    return true;
+}
+
+template <class T>
+bool FactoryLoader<T>::openFactory(const String8 &path) {
+    // get strong pointer to open shared library
+    ssize_t index = mLibraryPathToOpenLibraryMap.indexOfKey(path);
+    if (index >= 0) {
+        mLibrary = mLibraryPathToOpenLibraryMap[index].promote();
+    } else {
+        index = mLibraryPathToOpenLibraryMap.add(path, NULL);
+    }
+
+    if (!mLibrary.get()) {
+        mLibrary = new SharedLibrary(path);
+        if (!*mLibrary) {
+            return false;
+        }
+
+        mLibraryPathToOpenLibraryMap.replaceValueAt(index, mLibrary);
+    }
+
+    CreateFactoryFunc createFactory =
+        (CreateFactoryFunc)mLibrary->lookup(mCreateFactoryFuncName);
+    if (createFactory == NULL || (mFactory = createFactory()) == NULL) {
+        return false;
+    }
+    return true;
+}
+
+template <class T>
+void FactoryLoader<T>::closeFactory() {
+    delete mFactory;
+    mFactory = NULL;
+    mLibrary.clear();
+}
+
+} // namespace android
+
+#endif // MEDIA_CAS_LOADER_H_
diff --git a/services/mediadrm/MediaCasService.cpp b/services/mediadrm/MediaCasService.cpp
new file mode 100644
index 0000000..c111283
--- /dev/null
+++ b/services/mediadrm/MediaCasService.cpp
@@ -0,0 +1,119 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "MediaCasService"
+
+#include <binder/IServiceManager.h>
+#include <media/cas/CasAPI.h>
+#include <media/cas/DescramblerAPI.h>
+#include <media/CasImpl.h>
+#include <media/DescramblerImpl.h>
+#include <utils/Log.h>
+#include <utils/List.h>
+#include "MediaCasService.h"
+#include <android/media/ICasListener.h>
+
+namespace android {
+
+//static
+void MediaCasService::instantiate() {
+    defaultServiceManager()->addService(
+            String16("media.cas"), new MediaCasService());
+}
+
+MediaCasService::MediaCasService() :
+    mCasLoader(new FactoryLoader<CasFactory>("createCasFactory")),
+    mDescramblerLoader(new FactoryLoader<DescramblerFactory>(
+            "createDescramblerFactory")) {
+}
+
+MediaCasService::~MediaCasService() {
+    delete mCasLoader;
+    delete mDescramblerLoader;
+}
+
+Status MediaCasService::enumeratePlugins(
+        vector<ParcelableCasPluginDescriptor>* results) {
+    ALOGV("enumeratePlugins");
+
+    mCasLoader->enumeratePlugins(results);
+
+    return Status::ok();
+}
+
+Status MediaCasService::isSystemIdSupported(
+        int32_t CA_system_id, bool* result) {
+    ALOGV("isSystemIdSupported: CA_system_id=%d", CA_system_id);
+
+    *result = mCasLoader->findFactoryForScheme(CA_system_id);
+
+    return Status::ok();
+}
+
+Status MediaCasService::createPlugin(
+        int32_t CA_system_id,
+        const sp<ICasListener> &listener,
+        sp<ICas>* result) {
+    ALOGV("createPlugin: CA_system_id=%d", CA_system_id);
+
+    result->clear();
+
+    CasFactory *factory;
+    sp<SharedLibrary> library;
+    if (mCasLoader->findFactoryForScheme(CA_system_id, &library, &factory)) {
+        CasPlugin *plugin = NULL;
+        sp<CasImpl> casImpl = new CasImpl(listener);
+        if (factory->createPlugin(CA_system_id, (uint64_t)casImpl.get(),
+                &CasImpl::OnEvent, &plugin) == OK && plugin != NULL) {
+            casImpl->init(library, plugin);
+            *result = casImpl;
+        }
+    }
+
+    return Status::ok();
+}
+
+Status MediaCasService::isDescramblerSupported(
+        int32_t CA_system_id, bool* result) {
+    ALOGV("isDescramblerSupported: CA_system_id=%d", CA_system_id);
+
+    *result = mDescramblerLoader->findFactoryForScheme(CA_system_id);
+
+    return Status::ok();
+}
+
+Status MediaCasService::createDescrambler(
+        int32_t CA_system_id, sp<IDescrambler>* result) {
+    ALOGV("createDescrambler: CA_system_id=%d", CA_system_id);
+
+    result->clear();
+
+    DescramblerFactory *factory;
+    sp<SharedLibrary> library;
+    if (mDescramblerLoader->findFactoryForScheme(
+            CA_system_id, &library, &factory)) {
+        DescramblerPlugin *plugin = NULL;
+        if (factory->createPlugin(CA_system_id, &plugin) == OK
+                && plugin != NULL) {
+            *result = new DescramblerImpl(library, plugin);
+        }
+    }
+
+    return Status::ok();
+}
+
+} // namespace android
diff --git a/services/mediadrm/MediaCasService.h b/services/mediadrm/MediaCasService.h
new file mode 100644
index 0000000..cb828f2
--- /dev/null
+++ b/services/mediadrm/MediaCasService.h
@@ -0,0 +1,60 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef MEDIA_CAS_SERVICE_H_
+#define MEDIA_CAS_SERVICE_H_
+
+#include <android/media/BnMediaCasService.h>
+
+#include "FactoryLoader.h"
+
+namespace android {
+using binder::Status;
+struct CasFactory;
+struct DescramblerFactory;
+
+class MediaCasService : public BnMediaCasService {
+public:
+    static void instantiate();
+
+    virtual Status enumeratePlugins(
+            vector<ParcelableCasPluginDescriptor>* results) override;
+
+    virtual Status isSystemIdSupported(
+            int32_t CA_system_id, bool* result) override;
+
+    virtual Status createPlugin(
+            int32_t CA_system_id,
+            const sp<ICasListener> &listener,
+            sp<ICas>* result) override;
+
+    virtual Status isDescramblerSupported(
+            int32_t CA_system_id, bool* result) override;
+
+    virtual Status createDescrambler(
+            int32_t CA_system_id, sp<IDescrambler>* result) override;
+
+private:
+    FactoryLoader<CasFactory> *mCasLoader;
+    FactoryLoader<DescramblerFactory> *mDescramblerLoader;
+
+    MediaCasService();
+    virtual ~MediaCasService();
+};
+
+} // namespace android
+
+#endif // MEDIA_CAS_SERVICE_H_
diff --git a/services/mediadrm/MediaDrmService.cpp b/services/mediadrm/MediaDrmService.cpp
index 331c568..b9ec347 100644
--- a/services/mediadrm/MediaDrmService.cpp
+++ b/services/mediadrm/MediaDrmService.cpp
@@ -21,11 +21,16 @@
 #define LOG_TAG "MediaDrmService"
 
 #include "MediaDrmService.h"
-
 #include <binder/IServiceManager.h>
+#include <utils/Log.h>
+
+#ifdef DISABLE_TREBLE_DRM
 #include <media/Crypto.h>
 #include <media/Drm.h>
-#include <utils/Log.h>
+#else
+#include <media/CryptoHal.h>
+#include <media/DrmHal.h>
+#endif
 
 namespace android {
 
@@ -35,11 +40,19 @@
 }
 
 sp<ICrypto> MediaDrmService::makeCrypto() {
+#ifdef DISABLE_TREBLE_DRM
     return new Crypto;
+#else
+    return new CryptoHal;
+#endif
 }
 
 sp<IDrm> MediaDrmService::makeDrm() {
+#ifdef DISABLE_TREBLE_DRM
     return new Drm;
+#else
+    return new DrmHal;
+#endif
 }
 
 } // namespace android
diff --git a/services/mediadrm/main_mediadrmserver.cpp b/services/mediadrm/main_mediadrmserver.cpp
index b767b8c..b685ae0 100644
--- a/services/mediadrm/main_mediadrmserver.cpp
+++ b/services/mediadrm/main_mediadrmserver.cpp
@@ -27,6 +27,7 @@
 #include <cutils/properties.h>
 #include <utils/Log.h>
 #include "MediaDrmService.h"
+#include "MediaCasService.h"
 
 using namespace android;
 
@@ -38,6 +39,7 @@
     sp<IServiceManager> sm = defaultServiceManager();
     ALOGI("ServiceManager: %p", sm.get());
     MediaDrmService::instantiate();
+    MediaCasService::instantiate();
     ProcessState::self()->startThreadPool();
     IPCThreadState::self()->joinThreadPool();
 }
diff --git a/services/mediadrm/tests/Android.mk b/services/mediadrm/tests/Android.mk
index 8cbf782..e2f7399 100644
--- a/services/mediadrm/tests/Android.mk
+++ b/services/mediadrm/tests/Android.mk
@@ -19,7 +19,6 @@
 	frameworks/av/media/libmediaplayerservice \
 
 LOCAL_CFLAGS += -Werror -Wall
-LOCAL_CLANG := true
 
 LOCAL_32_BIT_ONLY := true
 
diff --git a/services/mediaextractor/Android.mk b/services/mediaextractor/Android.mk
index a9a2d3c..1ebb7ff 100644
--- a/services/mediaextractor/Android.mk
+++ b/services/mediaextractor/Android.mk
@@ -5,21 +5,30 @@
 LOCAL_SRC_FILES := MediaExtractorService.cpp
 LOCAL_SHARED_LIBRARIES := libmedia libstagefright libbinder libutils liblog
 LOCAL_MODULE:= libmediaextractorservice
-LOCAL_32_BIT_ONLY := true
 include $(BUILD_SHARED_LIBRARY)
 
 
 # service executable
 include $(CLEAR_VARS)
-LOCAL_REQUIRED_MODULES_arm := mediaextractor-seccomp.policy
-LOCAL_REQUIRED_MODULES_x86 := mediaextractor-seccomp.policy
-LOCAL_SRC_FILES := main_extractorservice.cpp minijail/minijail.cpp
-LOCAL_SHARED_LIBRARIES := libmedia libmediaextractorservice libbinder libutils liblog libicuuc libminijail
+# seccomp filters are defined for the following architectures:
+LOCAL_REQUIRED_MODULES_arm := mediaextractor.policy
+LOCAL_REQUIRED_MODULES_arm64 := mediaextractor.policy
+LOCAL_REQUIRED_MODULES_x86 := mediaextractor.policy
+LOCAL_SRC_FILES := main_extractorservice.cpp
+LOCAL_SHARED_LIBRARIES := libmedia libmediaextractorservice libbinder libutils \
+    liblog libbase libicuuc libavservices_minijail
 LOCAL_STATIC_LIBRARIES := libicuandroid_utils
 LOCAL_MODULE:= mediaextractor
-LOCAL_32_BIT_ONLY := true
 LOCAL_INIT_RC := mediaextractor.rc
 LOCAL_C_INCLUDES := frameworks/av/media/libmedia
 include $(BUILD_EXECUTABLE)
 
-include $(call all-makefiles-under, $(LOCAL_PATH))
+# service seccomp filter
+ifeq ($(TARGET_ARCH), $(filter $(TARGET_ARCH), arm arm64 x86))
+include $(CLEAR_VARS)
+LOCAL_MODULE := mediaextractor.policy
+LOCAL_MODULE_CLASS := ETC
+LOCAL_MODULE_PATH := $(TARGET_OUT)/etc/seccomp_policy
+LOCAL_SRC_FILES := seccomp_policy/mediaextractor-$(TARGET_ARCH).policy
+include $(BUILD_PREBUILT)
+endif
diff --git a/services/mediaextractor/main_extractorservice.cpp b/services/mediaextractor/main_extractorservice.cpp
index 245489e..9bc69c4 100644
--- a/services/mediaextractor/main_extractorservice.cpp
+++ b/services/mediaextractor/main_extractorservice.cpp
@@ -15,25 +15,30 @@
 ** limitations under the License.
 */
 
-#define LOG_TAG "mediaextractor"
-//#define LOG_NDEBUG 0
-
 #include <fcntl.h>
 #include <sys/prctl.h>
 #include <sys/wait.h>
 #include <binder/IPCThreadState.h>
 #include <binder/ProcessState.h>
 #include <binder/IServiceManager.h>
-#include <utils/Log.h>
+
+#include <string>
+
+#include <android-base/logging.h>
 
 // from LOCAL_C_INCLUDES
 #include "IcuUtils.h"
 #include "MediaExtractorService.h"
 #include "MediaUtils.h"
-#include "minijail/minijail.h"
+#include "minijail.h"
 
 using namespace android;
 
+static const char kSystemSeccompPolicyPath[] =
+        "/system/etc/seccomp_policy/mediaextractor.policy";
+static const char kVendorSeccompPolicyPath[] =
+        "/vendor/etc/seccomp_policy/mediaextractor.policy";
+
 int main(int argc __unused, char** argv)
 {
     limitProcessMemory(
@@ -42,7 +47,7 @@
         20 /* upper limit as percentage of physical RAM */);
 
     signal(SIGPIPE, SIG_IGN);
-    MiniJail();
+    SetUpMinijail(kSystemSeccompPolicyPath, kVendorSeccompPolicyPath);
 
     InitializeIcuOrDie();
 
diff --git a/services/mediaextractor/minijail/Android.mk b/services/mediaextractor/minijail/Android.mk
deleted file mode 100644
index 0cf8eff..0000000
--- a/services/mediaextractor/minijail/Android.mk
+++ /dev/null
@@ -1,27 +0,0 @@
-LOCAL_PATH := $(call my-dir)
-
-ifeq ($(TARGET_ARCH), $(filter $(TARGET_ARCH), arm arm64 x86 x86_64))
-include $(CLEAR_VARS)
-LOCAL_MODULE := mediaextractor-seccomp.policy
-LOCAL_MODULE_CLASS := ETC
-LOCAL_MODULE_PATH := $(TARGET_OUT)/etc/seccomp_policy
-
-# mediaextractor runs in 32-bit combatibility mode. For 64 bit architectures,
-# use the 32 bit policy
-ifdef TARGET_2ND_ARCH
-    LOCAL_SRC_FILES := $(LOCAL_PATH)/seccomp_policy/mediaextractor-seccomp-$(TARGET_2ND_ARCH).policy
-else
-    LOCAL_SRC_FILES := $(LOCAL_PATH)/seccomp_policy/mediaextractor-seccomp-$(TARGET_ARCH).policy
-endif
-
-# allow device specific additions to the syscall whitelist
-LOCAL_SRC_FILES += $(wildcard $(foreach dir, $(BOARD_SECCOMP_POLICY), \
-                     $(dir)/mediaextractor-seccomp.policy))
-
-include $(BUILD_SYSTEM)/base_rules.mk
-
-$(LOCAL_BUILT_MODULE): $(LOCAL_SRC_FILES)
-	@mkdir -p $(dir $@)
-	$(hide) cat > $@ $^
-
-endif
diff --git a/services/mediaextractor/minijail/minijail.cpp b/services/mediaextractor/minijail/minijail.cpp
deleted file mode 100644
index c44d00d..0000000
--- a/services/mediaextractor/minijail/minijail.cpp
+++ /dev/null
@@ -1,55 +0,0 @@
-/*
-**
-** Copyright 2015, The Android Open Source Project
-**
-** Licensed under the Apache License, Version 2.0 (the "License");
-** you may not use this file except in compliance with the License.
-** You may obtain a copy of the License at
-**
-**     http://www.apache.org/licenses/LICENSE-2.0
-**
-** Unless required by applicable law or agreed to in writing, software
-** distributed under the License is distributed on an "AS IS" BASIS,
-** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-** See the License for the specific language governing permissions and
-** limitations under the License.
-*/
-
-#define LOG_TAG "minijail"
-
-#include <unistd.h>
-
-#include <log/log.h>
-
-#include <libminijail.h>
-
-#include "minijail.h"
-
-namespace android {
-
-/* Must match location in Android.mk */
-static const char kSeccompFilePath[] = "/system/etc/seccomp_policy/mediaextractor-seccomp.policy";
-
-int MiniJail()
-{
-    /* no seccomp policy for this architecture */
-    if (access(kSeccompFilePath, R_OK) == -1) {
-        ALOGW("No seccomp filter defined for this architecture.");
-        return 0;
-    }
-
-    struct minijail *jail = minijail_new();
-    if (jail == NULL) {
-        ALOGW("Failed to create minijail.");
-        return -1;
-    }
-
-    minijail_no_new_privs(jail);
-    minijail_log_seccomp_filter_failures(jail);
-    minijail_use_seccomp_filter(jail);
-    minijail_parse_seccomp_filters(jail, kSeccompFilePath);
-    minijail_enter(jail);
-    minijail_destroy(jail);
-    return 0;
-}
-}
diff --git a/services/mediaextractor/minijail/minijail.h b/services/mediaextractor/minijail/minijail.h
deleted file mode 100644
index 6ea4487..0000000
--- a/services/mediaextractor/minijail/minijail.h
+++ /dev/null
@@ -1,20 +0,0 @@
-/*
-**
-** Copyright 2015, The Android Open Source Project
-**
-** Licensed under the Apache License, Version 2.0 (the "License");
-** you may not use this file except in compliance with the License.
-** You may obtain a copy of the License at
-**
-**     http://www.apache.org/licenses/LICENSE-2.0
-**
-** Unless required by applicable law or agreed to in writing, software
-** distributed under the License is distributed on an "AS IS" BASIS,
-** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-** See the License for the specific language governing permissions and
-** limitations under the License.
-*/
-
-namespace android {
-int MiniJail();
-}
diff --git a/services/mediaextractor/minijail/seccomp_policy/mediaextractor-seccomp-arm.policy b/services/mediaextractor/minijail/seccomp_policy/mediaextractor-seccomp-arm.policy
deleted file mode 100644
index 165694c..0000000
--- a/services/mediaextractor/minijail/seccomp_policy/mediaextractor-seccomp-arm.policy
+++ /dev/null
@@ -1,47 +0,0 @@
-# Organized by frequency of systemcall - in descending order for
-# best performance.
-ioctl: 1
-futex: 1
-prctl: 1
-write: 1
-getpriority: 1
-mmap2: 1
-close: 1
-munmap: 1
-dup: 1
-mprotect: 1
-getuid32: 1
-setpriority: 1
-sigaltstack: 1
-openat: 1
-clone: 1
-read: 1
-clock_gettime: 1
-lseek: 1
-writev: 1
-fstatat64: 1
-fstat64: 1
-restart_syscall: 1
-exit: 1
-exit_group: 1
-rt_sigreturn: 1
-faccessat: 1
-madvise: 1
-brk: 1
-sched_setscheduler: 1
-gettid: 1
-rt_sigprocmask: 1
-sched_yield: 1
-ugetrlimit: 1
-geteuid32: 1
-getgid32: 1
-getegid32: 1
-getgroups32: 1
-
-# for attaching to debuggerd on process crash
-sigaction: 1
-tgkill: 1
-socket: 1
-connect: 1
-fcntl64: 1
-rt_tgsigqueueinfo: 1
diff --git a/services/mediaextractor/minijail/seccomp_policy/mediaextractor-seccomp-x86.policy b/services/mediaextractor/minijail/seccomp_policy/mediaextractor-seccomp-x86.policy
deleted file mode 100644
index 67976ff..0000000
--- a/services/mediaextractor/minijail/seccomp_policy/mediaextractor-seccomp-x86.policy
+++ /dev/null
@@ -1,45 +0,0 @@
-# Organized by frequency of systemcall - in descending order for
-# best performance.
-ioctl: 1
-futex: 1
-prctl: 1
-write: 1
-getpriority: 1
-close: 1
-dup: 1
-munmap: 1
-mmap2: 1
-madvise: 1
-openat: 1
-clock_gettime: 1
-writev: 1
-brk: 1
-mprotect: 1
-read: 1
-lseek: 1
-getuid32: 1
-clone: 1
-setpriority: 1
-sigaltstack: 1
-fstatat64: 1
-fstat64: 1
-restart_syscall: 1
-exit: 1
-exit_group: 1
-rt_sigreturn: 1
-faccessat: 1
-sched_setscheduler: 1
-ugetrlimit: 1
-getrlimit: 1
-geteuid32: 1
-getgid32: 1
-getegid32: 1
-getgroups32: 1
-
-# for attaching to debuggerd on process crash
-socketcall: 1
-sigaction: 1
-tgkill: 1
-rt_sigprocmask: 1
-fcntl64: 1
-rt_tgsigqueueinfo: 1
diff --git a/services/mediaextractor/seccomp_policy/mediaextractor-arm.policy b/services/mediaextractor/seccomp_policy/mediaextractor-arm.policy
new file mode 100644
index 0000000..96840a0
--- /dev/null
+++ b/services/mediaextractor/seccomp_policy/mediaextractor-arm.policy
@@ -0,0 +1,55 @@
+# Organized by frequency of systemcall - in descending order for
+# best performance.
+ioctl: 1
+futex: 1
+prctl: 1
+write: 1
+getpriority: 1
+mmap2: 1
+close: 1
+munmap: 1
+dup: 1
+mprotect: 1
+getuid32: 1
+setpriority: 1
+sigaltstack: 1
+openat: 1
+clone: 1
+read: 1
+clock_gettime: 1
+lseek: 1
+writev: 1
+fstatat64: 1
+fstat64: 1
+restart_syscall: 1
+exit: 1
+exit_group: 1
+rt_sigreturn: 1
+faccessat: 1
+madvise: 1
+brk: 1
+sched_setscheduler: 1
+gettid: 1
+rt_sigprocmask: 1
+sched_yield: 1
+ugetrlimit: 1
+geteuid32: 1
+getgid32: 1
+getegid32: 1
+getgroups32: 1
+
+# for attaching to debuggerd on process crash
+sigaction: 1
+tgkill: 1
+socket: 1
+connect: 1
+recvmsg: 1
+fcntl64: 1
+rt_tgsigqueueinfo: 1
+geteuid32: 1
+getgid32: 1
+getegid32: 1
+getgroups32: 1
+getdents64: 1
+pipe2: 1
+ppoll: 1
diff --git a/services/mediaextractor/seccomp_policy/mediaextractor-arm64.policy b/services/mediaextractor/seccomp_policy/mediaextractor-arm64.policy
new file mode 100644
index 0000000..c95ddb7
--- /dev/null
+++ b/services/mediaextractor/seccomp_policy/mediaextractor-arm64.policy
@@ -0,0 +1,46 @@
+# Organized by frequency of systemcall - in descending order for
+# best performance.
+ioctl: 1
+futex: 1
+prctl: 1
+write: 1
+getpriority: 1
+close: 1
+dup: 1
+mmap: 1
+munmap: 1
+openat: 1
+mprotect: 1
+madvise: 1
+getuid: 1
+fstat: 1
+read: 1
+setpriority: 1
+sigaltstack: 1
+clone: 1
+lseek: 1
+newfstatat: 1
+faccessat: 1
+restart_syscall: 1
+exit: 1
+exit_group: 1
+rt_sigreturn: 1
+getrlimit: 1
+
+# for attaching to debuggerd on process crash
+tgkill: 1
+rt_sigprocmask: 1
+rt_sigaction: 1
+# socket: arg0 == AF_LOCAL
+socket: arg0 == 1
+connect: 1
+recvmsg: 1
+rt_tgsigqueueinfo: 1
+writev: 1
+geteuid: 1
+getgid: 1
+getegid: 1
+getgroups: 1
+getdents64: 1
+pipe2: 1
+ppoll: 1
diff --git a/services/mediaextractor/seccomp_policy/mediaextractor-x86.policy b/services/mediaextractor/seccomp_policy/mediaextractor-x86.policy
new file mode 100644
index 0000000..19016cd
--- /dev/null
+++ b/services/mediaextractor/seccomp_policy/mediaextractor-x86.policy
@@ -0,0 +1,53 @@
+# Organized by frequency of systemcall - in descending order for
+# best performance.
+ioctl: 1
+futex: 1
+prctl: 1
+write: 1
+getpriority: 1
+close: 1
+dup: 1
+munmap: 1
+mmap2: 1
+madvise: 1
+openat: 1
+clock_gettime: 1
+writev: 1
+brk: 1
+mprotect: 1
+read: 1
+lseek: 1
+getuid32: 1
+clone: 1
+setpriority: 1
+sigaltstack: 1
+fstatat64: 1
+fstat64: 1
+restart_syscall: 1
+exit: 1
+exit_group: 1
+rt_sigreturn: 1
+faccessat: 1
+sched_setscheduler: 1
+ugetrlimit: 1
+getrlimit: 1
+geteuid32: 1
+getgid32: 1
+getegid32: 1
+getgroups32: 1
+nanosleep: 1
+
+# for attaching to debuggerd on process crash
+socketcall: 1
+sigaction: 1
+tgkill: 1
+rt_sigprocmask: 1
+fcntl64: 1
+rt_tgsigqueueinfo: 1
+geteuid32: 1
+getgid32: 1
+getegid32: 1
+getgroups32: 1
+getdents64: 1
+pipe2: 1
+ppoll: 1
diff --git a/services/medialog/Android.mk b/services/medialog/Android.mk
index a1da63d..423b186 100644
--- a/services/medialog/Android.mk
+++ b/services/medialog/Android.mk
@@ -4,7 +4,7 @@
 
 LOCAL_SRC_FILES := MediaLogService.cpp IMediaLogService.cpp
 
-LOCAL_SHARED_LIBRARIES := libbinder libutils liblog libnbaio
+LOCAL_SHARED_LIBRARIES := libbinder libutils liblog libnbaio libaudioutils
 
 LOCAL_MULTILIB := $(AUDIOSERVER_MULTILIB)
 
diff --git a/services/medialog/IMediaLogService.cpp b/services/medialog/IMediaLogService.cpp
index bc445ff..0e9b01e 100644
--- a/services/medialog/IMediaLogService.cpp
+++ b/services/medialog/IMediaLogService.cpp
@@ -29,6 +29,7 @@
 enum {
     REGISTER_WRITER = IBinder::FIRST_CALL_TRANSACTION,
     UNREGISTER_WRITER,
+    REQUEST_MERGE_WAKEUP,
 };
 
 class BpMediaLogService : public BpInterface<IMediaLogService>
@@ -57,6 +58,13 @@
         // FIXME ignores status
     }
 
+    virtual void    requestMergeWakeup() {
+        Parcel data, reply;
+        data.writeInterfaceToken(IMediaLogService::getInterfaceDescriptor());
+        status_t status __unused = remote()->transact(REQUEST_MERGE_WAKEUP, data, &reply);
+        // FIXME ignores status
+    }
+
 };
 
 IMPLEMENT_META_INTERFACE(MediaLogService, "android.media.IMediaLogService");
@@ -84,6 +92,12 @@
             return NO_ERROR;
         }
 
+        case REQUEST_MERGE_WAKEUP: {
+            CHECK_INTERFACE(IMediaLogService, data, reply);
+            requestMergeWakeup();
+            return NO_ERROR;
+        }
+
         default:
             return BBinder::onTransact(code, data, reply, flags);
     }
diff --git a/services/medialog/MediaLogService.cpp b/services/medialog/MediaLogService.cpp
index f85aa13..aaf1018 100644
--- a/services/medialog/MediaLogService.cpp
+++ b/services/medialog/MediaLogService.cpp
@@ -26,7 +26,24 @@
 
 namespace android {
 
-static const char kDeadlockedString[] = "MediaLogService may be deadlocked\n";
+// static const char kDeadlockedString[] = "MediaLogService may be deadlocked\n";
+MediaLogService::MediaLogService() :
+    BnMediaLogService(),
+    mMergerShared((NBLog::Shared*) malloc(NBLog::Timeline::sharedSize(kMergeBufferSize))),
+    mMerger(mMergerShared, kMergeBufferSize),
+    mMergeReader(mMergerShared, kMergeBufferSize, mMerger),
+    mMergeThread(new NBLog::MergeThread(mMerger))
+{
+    mMergeThread->run("MergeThread");
+}
+
+MediaLogService::~MediaLogService()
+{
+    mMergeThread->requestExit();
+    mMergeThread->setTimeoutUs(0);
+    mMergeThread->join();
+    free(mMergerShared);
+}
 
 void MediaLogService::registerWriter(const sp<IMemory>& shared, size_t size, const char *name)
 {
@@ -35,10 +52,11 @@
             shared->size() < NBLog::Timeline::sharedSize(size)) {
         return;
     }
-    sp<NBLog::Reader> reader(new NBLog::Reader(size, shared));
-    NamedReader namedReader(reader, name);
+    sp<NBLog::Reader> reader(new NBLog::Reader(shared, size));
+    NBLog::NamedReader namedReader(reader, name);
     Mutex::Autolock _l(mLock);
     mNamedReaders.add(namedReader);
+    mMerger.addReader(namedReader);
 }
 
 void MediaLogService::unregisterWriter(const sp<IMemory>& shared)
@@ -81,7 +99,8 @@
         return NO_ERROR;
     }
 
-    Vector<NamedReader> namedReaders;
+#if 0
+    Vector<NBLog::NamedReader> namedReaders;
     {
         bool locked = dumpTryLock(mLock);
 
@@ -95,19 +114,22 @@
             }
             return NO_ERROR;
         }
-        namedReaders = mNamedReaders;
+            // namedReaders = mNamedReaders;
+            // for (size_t i = 0; i < namedReaders.size(); i++) {
+            //     const NBLog::NamedReader& namedReader = namedReaders[i];
+            //     if (fd >= 0) {
+            //         dprintf(fd, "\n%s:\n", namedReader.name());
+            //     } else {
+            //         ALOGI("%s:", namedReader.name());
+            //     }
+            //     namedReader.reader()->dump(fd, 0 /*indent*/);
+            // }
+
         mLock.unlock();
     }
-
-    for (size_t i = 0; i < namedReaders.size(); i++) {
-        const NamedReader& namedReader = namedReaders[i];
-        if (fd >= 0) {
-            dprintf(fd, "\n%s:\n", namedReader.name());
-        } else {
-            ALOGI("%s:", namedReader.name());
-        }
-        namedReader.reader()->dump(fd, 0 /*indent*/);
-    }
+#endif
+    // FIXME request merge to make sure log is up to date
+    mMergeReader.dump(fd);
     return NO_ERROR;
 }
 
@@ -117,4 +139,8 @@
     return BnMediaLogService::onTransact(code, data, reply, flags);
 }
 
+void MediaLogService::requestMergeWakeup() {
+    mMergeThread->wakeup();
+}
+
 }   // namespace android
diff --git a/services/medialog/MediaLogService.h b/services/medialog/MediaLogService.h
index c9bf2eb..c6b99f1 100644
--- a/services/medialog/MediaLogService.h
+++ b/services/medialog/MediaLogService.h
@@ -27,8 +27,8 @@
 {
     friend class BinderService<MediaLogService>;    // for MediaLogService()
 public:
-    MediaLogService() : BnMediaLogService() { }
-    virtual ~MediaLogService() { }
+    MediaLogService();
+    virtual ~MediaLogService() override;
     virtual void onFirstRef() { }
 
     static const char*  getServiceName() { return "media.log"; }
@@ -42,28 +42,23 @@
     virtual status_t    onTransact(uint32_t code, const Parcel& data, Parcel* reply,
                                 uint32_t flags);
 
+    virtual void        requestMergeWakeup() override;
+
 private:
 
     // Internal dump
     static const int kDumpLockRetries = 50;
     static const int kDumpLockSleepUs = 20000;
+    static const size_t kMergeBufferSize = 16 * 1024; // TODO determine good value for this
     static bool dumpTryLock(Mutex& mutex);
 
     Mutex               mLock;
-    class NamedReader {
-    public:
-        NamedReader() : mReader(0) { mName[0] = '\0'; } // for Vector
-        NamedReader(const sp<NBLog::Reader>& reader, const char *name) : mReader(reader)
-            { strlcpy(mName, name, sizeof(mName)); }
-        ~NamedReader() { }
-        const sp<NBLog::Reader>&  reader() const { return mReader; }
-        const char*               name() const { return mName; }
-    private:
-        sp<NBLog::Reader>   mReader;
-        static const size_t kMaxName = 32;
-        char                mName[kMaxName];
-    };
-    Vector<NamedReader> mNamedReaders;
+
+    Vector<NBLog::NamedReader> mNamedReaders;
+    NBLog::Shared *mMergerShared;
+    NBLog::Merger mMerger;
+    NBLog::MergeReader mMergeReader;
+    const sp<NBLog::MergeThread> mMergeThread;
 };
 
 }   // namespace android
diff --git a/services/mediaresourcemanager/Android.mk b/services/mediaresourcemanager/Android.mk
index b72230f..c9cd8cc 100644
--- a/services/mediaresourcemanager/Android.mk
+++ b/services/mediaresourcemanager/Android.mk
@@ -4,7 +4,7 @@
 
 LOCAL_SRC_FILES := ResourceManagerService.cpp ServiceLog.cpp
 
-LOCAL_SHARED_LIBRARIES := libmedia libstagefright libbinder libutils liblog
+LOCAL_SHARED_LIBRARIES := libmedia libmediautils libbinder libutils liblog
 
 LOCAL_MODULE:= libresourcemanagerservice
 
@@ -14,7 +14,6 @@
     $(TOPDIR)frameworks/av/include
 
 LOCAL_CFLAGS += -Werror -Wall
-LOCAL_CLANG := true
 
 include $(BUILD_SHARED_LIBRARY)
 
diff --git a/services/mediaresourcemanager/ResourceManagerService.cpp b/services/mediaresourcemanager/ResourceManagerService.cpp
index 7346f51..78bb587 100644
--- a/services/mediaresourcemanager/ResourceManagerService.cpp
+++ b/services/mediaresourcemanager/ResourceManagerService.cpp
@@ -34,6 +34,31 @@
 
 namespace android {
 
+namespace {
+
+class DeathNotifier : public IBinder::DeathRecipient {
+public:
+    DeathNotifier(const wp<ResourceManagerService> &service, int pid, int64_t clientId)
+        : mService(service), mPid(pid), mClientId(clientId) {}
+
+    virtual void binderDied(const wp<IBinder> & /* who */) override {
+        // Don't check for pid validity since we know it's already dead.
+        sp<ResourceManagerService> service = mService.promote();
+        if (service == nullptr) {
+            ALOGW("ResourceManagerService is dead as well.");
+            return;
+        }
+        service->removeResource(mPid, mClientId, false);
+    }
+
+private:
+    wp<ResourceManagerService> mService;
+    int mPid;
+    int64_t mClientId;
+};
+
+}  // namespace
+
 template <typename T>
 static String8 getString(const Vector<T> &items) {
     String8 itemsStr;
@@ -214,17 +239,25 @@
     ResourceInfo& info = getResourceInfoForEdit(clientId, client, infos);
     // TODO: do the merge instead of append.
     info.resources.appendVector(resources);
+    if (info.deathNotifier == nullptr) {
+        info.deathNotifier = new DeathNotifier(this, pid, clientId);
+        IInterface::asBinder(client)->linkToDeath(info.deathNotifier);
+    }
     notifyResourceGranted(pid, resources);
 }
 
 void ResourceManagerService::removeResource(int pid, int64_t clientId) {
+    removeResource(pid, clientId, true);
+}
+
+void ResourceManagerService::removeResource(int pid, int64_t clientId, bool checkValid) {
     String8 log = String8::format(
             "removeResource(pid %d, clientId %lld)",
             pid, (long long) clientId);
     mServiceLog->add(log);
 
     Mutex::Autolock lock(mLock);
-    if (!mProcessInfo->isValidPid(pid)) {
+    if (checkValid && !mProcessInfo->isValidPid(pid)) {
         ALOGE("Rejected removeResource call with invalid pid.");
         return;
     }
@@ -237,6 +270,7 @@
     ResourceInfos &infos = mMap.editValueAt(index);
     for (size_t j = 0; j < infos.size(); ++j) {
         if (infos[j].clientId == clientId) {
+            IInterface::asBinder(infos[j].client)->unlinkToDeath(infos[j].deathNotifier);
             j = infos.removeAt(j);
             found = true;
             break;
diff --git a/services/mediaresourcemanager/ResourceManagerService.h b/services/mediaresourcemanager/ResourceManagerService.h
index 2a4a6b2..9e97ac0 100644
--- a/services/mediaresourcemanager/ResourceManagerService.h
+++ b/services/mediaresourcemanager/ResourceManagerService.h
@@ -36,6 +36,7 @@
 struct ResourceInfo {
     int64_t clientId;
     sp<IResourceManagerClient> client;
+    sp<IBinder::DeathRecipient> deathNotifier;
     Vector<MediaResource> resources;
 };
 
@@ -70,6 +71,8 @@
     // Returns true if any resource has been reclaimed, otherwise returns false.
     virtual bool reclaimResource(int callingPid, const Vector<MediaResource> &resources);
 
+    void removeResource(int pid, int64_t clientId, bool checkValid);
+
 protected:
     virtual ~ResourceManagerService();
 
diff --git a/services/mediaresourcemanager/test/Android.mk b/services/mediaresourcemanager/test/Android.mk
index 3b4ef0d..6abcf92 100644
--- a/services/mediaresourcemanager/test/Android.mk
+++ b/services/mediaresourcemanager/test/Android.mk
@@ -21,7 +21,6 @@
   frameworks/av/services/mediaresourcemanager \
 
 LOCAL_CFLAGS += -Werror -Wall
-LOCAL_CLANG := true
 
 LOCAL_32_BIT_ONLY := true
 
@@ -47,7 +46,6 @@
   frameworks/av/services/mediaresourcemanager \
 
 LOCAL_CFLAGS += -Werror -Wall
-LOCAL_CLANG := true
 
 LOCAL_32_BIT_ONLY := true
 
diff --git a/services/minijail/Android.mk b/services/minijail/Android.mk
new file mode 100644
index 0000000..3e63f97
--- /dev/null
+++ b/services/minijail/Android.mk
@@ -0,0 +1,17 @@
+LOCAL_PATH := $(call my-dir)
+
+# Small library for media.extractor and media.codec sandboxing.
+include $(CLEAR_VARS)
+LOCAL_MODULE := libavservices_minijail
+LOCAL_SRC_FILES := minijail.cpp
+LOCAL_SHARED_LIBRARIES := libbase libminijail
+LOCAL_EXPORT_C_INCLUDE_DIRS := $(LOCAL_PATH)
+include $(BUILD_SHARED_LIBRARY)
+
+
+# Unit tests.
+include $(CLEAR_VARS)
+LOCAL_MODULE := libavservices_minijail_unittest
+LOCAL_SRC_FILES := minijail.cpp av_services_minijail_unittest.cpp
+LOCAL_SHARED_LIBRARIES := libbase libminijail
+include $(BUILD_NATIVE_TEST)
diff --git a/services/minijail/av_services_minijail_unittest.cpp b/services/minijail/av_services_minijail_unittest.cpp
new file mode 100644
index 0000000..31313f8
--- /dev/null
+++ b/services/minijail/av_services_minijail_unittest.cpp
@@ -0,0 +1,58 @@
+// Copyright (C) 2017 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include <string>
+
+#include <android-base/file.h>
+#include <android-base/unique_fd.h>
+
+#include <gtest/gtest.h>
+
+#include "minijail.h"
+
+class WritePolicyTest : public ::testing::Test
+{
+  protected:
+    const std::string base_policy_ =
+        "read: 1\n"
+        "write: 1\n"
+        "rt_sigreturn: 1\n"
+        "exit: 1\n";
+
+    const std::string additional_policy_ =
+        "mmap: 1\n"
+        "munmap: 1\n";
+
+    const std::string full_policy_ = base_policy_ + std::string("\n") + additional_policy_;
+};
+
+TEST_F(WritePolicyTest, OneFile)
+{
+    std::string final_string;
+    android::base::unique_fd fd(android::WritePolicyToPipe(base_policy_, std::string()));
+    EXPECT_LE(0, fd.get());
+    bool success = android::base::ReadFdToString(fd.get(), &final_string);
+    EXPECT_TRUE(success);
+    EXPECT_EQ(final_string, base_policy_);
+}
+
+TEST_F(WritePolicyTest, TwoFiles)
+{
+    std::string final_string;
+    android::base::unique_fd fd(android::WritePolicyToPipe(base_policy_, additional_policy_));
+    EXPECT_LE(0, fd.get());
+    bool success = android::base::ReadFdToString(fd.get(), &final_string);
+    EXPECT_TRUE(success);
+    EXPECT_EQ(final_string, full_policy_);
+}
diff --git a/services/minijail/minijail.cpp b/services/minijail/minijail.cpp
new file mode 100644
index 0000000..f213287
--- /dev/null
+++ b/services/minijail/minijail.cpp
@@ -0,0 +1,95 @@
+// Copyright 2015, The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#include <fcntl.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include <android-base/file.h>
+#include <android-base/logging.h>
+#include <android-base/unique_fd.h>
+
+#include <libminijail.h>
+#include <scoped_minijail.h>
+
+#include "minijail.h"
+
+namespace android {
+
+int WritePolicyToPipe(const std::string& base_policy_content,
+                      const std::string& additional_policy_content)
+{
+    int pipefd[2];
+    if (pipe(pipefd) == -1) {
+        PLOG(ERROR) << "pipe() failed";
+        return -1;
+    }
+
+    base::unique_fd write_end(pipefd[1]);
+    std::string content = base_policy_content;
+
+    if (additional_policy_content.length() > 0) {
+        content += "\n";
+        content += additional_policy_content;
+    }
+
+    if (!base::WriteStringToFd(content, write_end.get())) {
+        LOG(ERROR) << "Could not write policy to fd";
+        return -1;
+    }
+
+    return pipefd[0];
+}
+
+void SetUpMinijail(const std::string& base_policy_path, const std::string& additional_policy_path)
+{
+    // No seccomp policy defined for this architecture.
+    if (access(base_policy_path.c_str(), R_OK) == -1) {
+        LOG(WARNING) << "No seccomp policy defined for this architecture.";
+        return;
+    }
+
+    std::string base_policy_content;
+    std::string additional_policy_content;
+    if (!base::ReadFileToString(base_policy_path, &base_policy_content,
+                                false /* follow_symlinks */)) {
+        LOG(FATAL) << "Could not read base policy file '" << base_policy_path << "'";
+    }
+
+    if (additional_policy_path.length() > 0 &&
+        !base::ReadFileToString(additional_policy_path, &additional_policy_content,
+                                false /* follow_symlinks */)) {
+        LOG(WARNING) << "Could not read additional policy file '" << additional_policy_path << "'";
+        additional_policy_content = std::string();
+    }
+
+    base::unique_fd policy_fd(WritePolicyToPipe(base_policy_content, additional_policy_content));
+    if (policy_fd.get() == -1) {
+        LOG(FATAL) << "Could not write seccomp policy to fd";
+    }
+
+    ScopedMinijail jail{minijail_new()};
+    if (!jail) {
+        LOG(FATAL) << "Failed to create minijail.";
+    }
+
+    minijail_no_new_privs(jail.get());
+    minijail_log_seccomp_filter_failures(jail.get());
+    minijail_use_seccomp_filter(jail.get());
+    // Transfer ownership of |policy_fd|.
+    minijail_parse_seccomp_filters_from_fd(jail.get(), policy_fd.release());
+    minijail_enter(jail.get());
+}
+}
diff --git a/services/minijail/minijail.h b/services/minijail/minijail.h
new file mode 100644
index 0000000..c8a2149
--- /dev/null
+++ b/services/minijail/minijail.h
@@ -0,0 +1,26 @@
+// Copyright 2015, The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#ifndef AV_SERVICES_MINIJAIL_MINIJAIL
+#define AV_SERVICES_MINIJAIL_MINIJAIL
+
+#include <string>
+
+namespace android {
+int WritePolicyToPipe(const std::string& base_policy_content,
+                      const std::string& additional_policy_content);
+void SetUpMinijail(const std::string& base_policy_path, const std::string& additional_policy_path);
+}
+
+#endif  // AV_SERVICES_MINIJAIL_MINIJAIL
diff --git a/services/oboeservice/AAudioService.cpp b/services/oboeservice/AAudioService.cpp
new file mode 100644
index 0000000..99b0b4d
--- /dev/null
+++ b/services/oboeservice/AAudioService.cpp
@@ -0,0 +1,170 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "AAudioService"
+//#define LOG_NDEBUG 0
+#include <utils/Log.h>
+
+#include <time.h>
+#include <pthread.h>
+
+#include <aaudio/AAudioDefinitions.h>
+
+#include "HandleTracker.h"
+#include "IAAudioService.h"
+#include "AAudioServiceDefinitions.h"
+#include "AAudioService.h"
+#include "AAudioServiceStreamFakeHal.h"
+
+using namespace android;
+using namespace aaudio;
+
+typedef enum
+{
+    AAUDIO_HANDLE_TYPE_DUMMY1, // TODO remove DUMMYs
+    AAUDIO_HANDLE_TYPE_DUMMY2, // make server handles different than client
+    AAUDIO_HANDLE_TYPE_STREAM,
+    AAUDIO_HANDLE_TYPE_COUNT
+} aaudio_service_handle_type_t;
+static_assert(AAUDIO_HANDLE_TYPE_COUNT <= HANDLE_TRACKER_MAX_TYPES, "Too many handle types.");
+
+android::AAudioService::AAudioService()
+    : BnAAudioService() {
+}
+
+AAudioService::~AAudioService() {
+}
+
+aaudio_handle_t AAudioService::openStream(aaudio::AAudioStreamRequest &request,
+                                                aaudio::AAudioStreamConfiguration &configuration) {
+    AAudioServiceStreamBase *serviceStream =  new AAudioServiceStreamFakeHal();
+    ALOGD("AAudioService::openStream(): created serviceStream = %p", serviceStream);
+    aaudio_result_t result = serviceStream->open(request, configuration);
+    if (result < 0) {
+        ALOGE("AAudioService::openStream(): open returned %d", result);
+        return result;
+    } else {
+        aaudio_handle_t handle = mHandleTracker.put(AAUDIO_HANDLE_TYPE_STREAM, serviceStream);
+        ALOGD("AAudioService::openStream(): handle = 0x%08X", handle);
+        if (handle < 0) {
+            delete serviceStream;
+        }
+        return handle;
+    }
+}
+
+aaudio_result_t AAudioService::closeStream(aaudio_handle_t streamHandle) {
+    AAudioServiceStreamBase *serviceStream = (AAudioServiceStreamBase *)
+            mHandleTracker.remove(AAUDIO_HANDLE_TYPE_STREAM,
+                                  streamHandle);
+    ALOGD("AAudioService.closeStream(0x%08X)", streamHandle);
+    if (serviceStream != nullptr) {
+        ALOGD("AAudioService::closeStream(): deleting serviceStream = %p", serviceStream);
+        delete serviceStream;
+        return AAUDIO_OK;
+    }
+    return AAUDIO_ERROR_INVALID_HANDLE;
+}
+
+AAudioServiceStreamBase *AAudioService::convertHandleToServiceStream(
+        aaudio_handle_t streamHandle) const {
+    return (AAudioServiceStreamBase *) mHandleTracker.get(AAUDIO_HANDLE_TYPE_STREAM,
+                              (aaudio_handle_t)streamHandle);
+}
+
+aaudio_result_t AAudioService::getStreamDescription(
+                aaudio_handle_t streamHandle,
+                aaudio::AudioEndpointParcelable &parcelable) {
+    AAudioServiceStreamBase *serviceStream = convertHandleToServiceStream(streamHandle);
+    ALOGD("AAudioService::getStreamDescription(), serviceStream = %p", serviceStream);
+    if (serviceStream == nullptr) {
+        return AAUDIO_ERROR_INVALID_HANDLE;
+    }
+    return serviceStream->getDescription(parcelable);
+}
+
+aaudio_result_t AAudioService::startStream(aaudio_handle_t streamHandle) {
+    AAudioServiceStreamBase *serviceStream = convertHandleToServiceStream(streamHandle);
+    ALOGD("AAudioService::startStream(), serviceStream = %p", serviceStream);
+    if (serviceStream == nullptr) {
+        return AAUDIO_ERROR_INVALID_HANDLE;
+    }
+    aaudio_result_t result = serviceStream->start();
+    return result;
+}
+
+aaudio_result_t AAudioService::pauseStream(aaudio_handle_t streamHandle) {
+    AAudioServiceStreamBase *serviceStream = convertHandleToServiceStream(streamHandle);
+    ALOGD("AAudioService::pauseStream(), serviceStream = %p", serviceStream);
+    if (serviceStream == nullptr) {
+        return AAUDIO_ERROR_INVALID_HANDLE;
+    }
+    aaudio_result_t result = serviceStream->pause();
+    return result;
+}
+
+aaudio_result_t AAudioService::flushStream(aaudio_handle_t streamHandle) {
+    AAudioServiceStreamBase *serviceStream = convertHandleToServiceStream(streamHandle);
+    ALOGD("AAudioService::flushStream(), serviceStream = %p", serviceStream);
+    if (serviceStream == nullptr) {
+        return AAUDIO_ERROR_INVALID_HANDLE;
+    }
+    return serviceStream->flush();
+}
+
+aaudio_result_t AAudioService::registerAudioThread(aaudio_handle_t streamHandle,
+                                                         pid_t clientThreadId,
+                                                         int64_t periodNanoseconds) {
+    AAudioServiceStreamBase *serviceStream = convertHandleToServiceStream(streamHandle);
+    ALOGD("AAudioService::registerAudioThread(), serviceStream = %p", serviceStream);
+    if (serviceStream == nullptr) {
+        ALOGE("AAudioService::registerAudioThread(), serviceStream == nullptr");
+        return AAUDIO_ERROR_INVALID_HANDLE;
+    }
+    if (serviceStream->getRegisteredThread() != AAudioServiceStreamBase::ILLEGAL_THREAD_ID) {
+        ALOGE("AAudioService::registerAudioThread(), thread already registered");
+        return AAUDIO_ERROR_INVALID_ORDER;
+    }
+    serviceStream->setRegisteredThread(clientThreadId);
+    // Boost client thread to SCHED_FIFO
+    struct sched_param sp;
+    memset(&sp, 0, sizeof(sp));
+    sp.sched_priority = 2; // TODO use 'requestPriority' function from frameworks/av/media/utils
+    int err = sched_setscheduler(clientThreadId, SCHED_FIFO, &sp);
+    if (err != 0){
+        ALOGE("AAudioService::sched_setscheduler() failed, errno = %d, priority = %d",
+              errno, sp.sched_priority);
+        return AAUDIO_ERROR_INTERNAL;
+    } else {
+        return AAUDIO_OK;
+    }
+}
+
+aaudio_result_t AAudioService::unregisterAudioThread(aaudio_handle_t streamHandle,
+                                                           pid_t clientThreadId) {
+    AAudioServiceStreamBase *serviceStream = convertHandleToServiceStream(streamHandle);
+    ALOGI("AAudioService::unregisterAudioThread(), serviceStream = %p", serviceStream);
+    if (serviceStream == nullptr) {
+        ALOGE("AAudioService::unregisterAudioThread(), serviceStream == nullptr");
+        return AAUDIO_ERROR_INVALID_HANDLE;
+    }
+    if (serviceStream->getRegisteredThread() != clientThreadId) {
+        ALOGE("AAudioService::unregisterAudioThread(), wrong thread");
+        return AAUDIO_ERROR_ILLEGAL_ARGUMENT;
+    }
+    serviceStream->setRegisteredThread(0);
+    return AAUDIO_OK;
+}
diff --git a/services/oboeservice/AAudioService.h b/services/oboeservice/AAudioService.h
new file mode 100644
index 0000000..a520d7a
--- /dev/null
+++ b/services/oboeservice/AAudioService.h
@@ -0,0 +1,75 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef AAUDIO_AAUDIO_SERVICE_H
+#define AAUDIO_AAUDIO_SERVICE_H
+
+#include <time.h>
+#include <pthread.h>
+
+#include <binder/BinderService.h>
+
+#include <aaudio/AAudioDefinitions.h>
+#include <aaudio/AAudio.h>
+#include "utility/HandleTracker.h"
+#include "IAAudioService.h"
+#include "AAudioServiceStreamBase.h"
+
+namespace android {
+
+class AAudioService :
+    public BinderService<AAudioService>,
+    public BnAAudioService
+{
+    friend class BinderService<AAudioService>;
+
+public:
+    AAudioService();
+    virtual ~AAudioService();
+
+    static const char* getServiceName() { return "media.audio_aaudio"; }
+
+    virtual aaudio_handle_t openStream(aaudio::AAudioStreamRequest &request,
+                                     aaudio::AAudioStreamConfiguration &configuration);
+
+    virtual aaudio_result_t closeStream(aaudio_handle_t streamHandle);
+
+    virtual aaudio_result_t getStreamDescription(
+                aaudio_handle_t streamHandle,
+                aaudio::AudioEndpointParcelable &parcelable);
+
+    virtual aaudio_result_t startStream(aaudio_handle_t streamHandle);
+
+    virtual aaudio_result_t pauseStream(aaudio_handle_t streamHandle);
+
+    virtual aaudio_result_t flushStream(aaudio_handle_t streamHandle);
+
+    virtual aaudio_result_t registerAudioThread(aaudio_handle_t streamHandle,
+                                              pid_t pid, int64_t periodNanoseconds) ;
+
+    virtual aaudio_result_t unregisterAudioThread(aaudio_handle_t streamHandle, pid_t pid);
+
+private:
+
+    aaudio::AAudioServiceStreamBase *convertHandleToServiceStream(aaudio_handle_t streamHandle) const;
+
+    HandleTracker mHandleTracker;
+
+};
+
+} /* namespace android */
+
+#endif //AAUDIO_AAUDIO_SERVICE_H
diff --git a/services/oboeservice/AAudioServiceDefinitions.h b/services/oboeservice/AAudioServiceDefinitions.h
new file mode 100644
index 0000000..f98acbf
--- /dev/null
+++ b/services/oboeservice/AAudioServiceDefinitions.h
@@ -0,0 +1,66 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef AAUDIO_AAUDIO_SERVICE_DEFINITIONS_H
+#define AAUDIO_AAUDIO_SERVICE_DEFINITIONS_H
+
+#include <stdint.h>
+
+#include <aaudio/AAudio.h>
+
+#include "binding/RingBufferParcelable.h"
+
+namespace aaudio {
+
+// TODO move this an "include" folder for the service.
+
+struct AAudioMessageTimestamp {
+    int64_t position;
+    int64_t                deviceOffset; // add to client position to get device position
+    int64_t     timestamp;
+};
+
+typedef enum aaudio_service_event_e : uint32_t {
+    AAUDIO_SERVICE_EVENT_STARTED,
+    AAUDIO_SERVICE_EVENT_PAUSED,
+    AAUDIO_SERVICE_EVENT_FLUSHED,
+    AAUDIO_SERVICE_EVENT_CLOSED,
+    AAUDIO_SERVICE_EVENT_DISCONNECTED
+} aaudio_service_event_t;
+
+struct AAudioMessageEvent {
+    aaudio_service_event_t event;
+    int32_t data1;
+    int64_t data2;
+};
+
+typedef struct AAudioServiceMessage_s {
+    enum class code : uint32_t {
+        NOTHING,
+        TIMESTAMP,
+        EVENT,
+    };
+
+    code what;
+    union {
+        AAudioMessageTimestamp timestamp;
+        AAudioMessageEvent event;
+    };
+} AAudioServiceMessage;
+
+} /* namespace aaudio */
+
+#endif //AAUDIO_AAUDIO_SERVICE_DEFINITIONS_H
diff --git a/services/oboeservice/AAudioServiceMain.cpp b/services/oboeservice/AAudioServiceMain.cpp
new file mode 100644
index 0000000..aa89180
--- /dev/null
+++ b/services/oboeservice/AAudioServiceMain.cpp
@@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "AAudioService"
+//#define LOG_NDEBUG 0
+#include <utils/Log.h>
+
+#include <stdint.h>
+#include <math.h>
+
+#include <utils/RefBase.h>
+#include <binder/TextOutput.h>
+
+#include <binder/IInterface.h>
+#include <binder/IBinder.h>
+#include <binder/ProcessState.h>
+#include <binder/IServiceManager.h>
+#include <binder/IPCThreadState.h>
+
+#include <cutils/ashmem.h>
+#include <sys/mman.h>
+
+#include "AAudioServiceDefinitions.h"
+#include "IAAudioService.h"
+#include "AAudioService.h"
+
+using namespace android;
+using namespace aaudio;
+
+/**
+ * This is used to test the AAudioService as a standalone application.
+ * It is not used when the AAudioService is integrated with AudioFlinger.
+ */
+int main(int argc, char **argv) {
+    printf("Test AAudioService %s\n", argv[1]);
+    ALOGD("This is the AAudioService");
+
+    defaultServiceManager()->addService(String16("AAudioService"), new AAudioService());
+    android::ProcessState::self()->startThreadPool();
+    printf("AAudioService service is now ready\n");
+    IPCThreadState::self()->joinThreadPool();
+    printf("AAudioService service thread joined\n");
+
+    return 0;
+}
diff --git a/services/oboeservice/AAudioServiceStreamBase.cpp b/services/oboeservice/AAudioServiceStreamBase.cpp
new file mode 100644
index 0000000..a7938dc
--- /dev/null
+++ b/services/oboeservice/AAudioServiceStreamBase.cpp
@@ -0,0 +1,60 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "AAudioService"
+//#define LOG_NDEBUG 0
+#include <utils/Log.h>
+
+#include "IAAudioService.h"
+#include "AAudioServiceDefinitions.h"
+#include "AAudioServiceStreamBase.h"
+#include "AudioEndpointParcelable.h"
+
+using namespace android;
+using namespace aaudio;
+
+/**
+ * Construct the AudioCommandQueues and the AudioDataQueue
+ * and fill in the endpoint parcelable.
+ */
+
+AAudioServiceStreamBase::AAudioServiceStreamBase()
+        : mUpMessageQueue(nullptr)
+{
+    // TODO could fail so move out of constructor
+    mUpMessageQueue = new SharedRingBuffer();
+    mUpMessageQueue->allocate(sizeof(AAudioServiceMessage), QUEUE_UP_CAPACITY_COMMANDS);
+}
+
+AAudioServiceStreamBase::~AAudioServiceStreamBase() {
+    Mutex::Autolock _l(mLockUpMessageQueue);
+    delete mUpMessageQueue;
+}
+
+void AAudioServiceStreamBase::sendServiceEvent(aaudio_service_event_t event,
+                              int32_t data1,
+                              int64_t data2) {
+
+    Mutex::Autolock _l(mLockUpMessageQueue);
+    AAudioServiceMessage command;
+    command.what = AAudioServiceMessage::code::EVENT;
+    command.event.event = event;
+    command.event.data1 = data1;
+    command.event.data2 = data2;
+    mUpMessageQueue->getFifoBuffer()->write(&command, 1);
+}
+
+
diff --git a/services/oboeservice/AAudioServiceStreamBase.h b/services/oboeservice/AAudioServiceStreamBase.h
new file mode 100644
index 0000000..7a812f9
--- /dev/null
+++ b/services/oboeservice/AAudioServiceStreamBase.h
@@ -0,0 +1,108 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef AAUDIO_AAUDIO_SERVICE_STREAM_BASE_H
+#define AAUDIO_AAUDIO_SERVICE_STREAM_BASE_H
+
+#include <utils/Mutex.h>
+
+#include "IAAudioService.h"
+#include "AAudioServiceDefinitions.h"
+#include "fifo/FifoBuffer.h"
+#include "SharedRingBuffer.h"
+#include "AudioEndpointParcelable.h"
+#include "AAudioThread.h"
+
+namespace aaudio {
+
+// We expect the queue to only have a few commands.
+// This should be way more than we need.
+#define QUEUE_UP_CAPACITY_COMMANDS (128)
+
+class AAudioServiceStreamBase {
+
+public:
+    AAudioServiceStreamBase();
+    virtual ~AAudioServiceStreamBase();
+
+    enum {
+        ILLEGAL_THREAD_ID = 0
+    };
+
+    /**
+     * Fill in a parcelable description of stream.
+     */
+    virtual aaudio_result_t getDescription(aaudio::AudioEndpointParcelable &parcelable) = 0;
+
+    /**
+     * Open the device.
+     */
+    virtual aaudio_result_t open(aaudio::AAudioStreamRequest &request,
+                               aaudio::AAudioStreamConfiguration &configuration) = 0;
+
+    /**
+     * Start the flow of data.
+     */
+    virtual aaudio_result_t start() = 0;
+
+    /**
+     * Stop the flow of data such that start() can resume with loss of data.
+     */
+    virtual aaudio_result_t pause() = 0;
+
+    /**
+     *  Discard any data held by the underlying HAL or Service.
+     */
+    virtual aaudio_result_t flush() = 0;
+
+    virtual aaudio_result_t close() = 0;
+
+    virtual void sendCurrentTimestamp() = 0;
+
+    int32_t getFramesPerBurst() {
+        return mFramesPerBurst;
+    }
+
+    virtual void sendServiceEvent(aaudio_service_event_t event,
+                                  int32_t data1 = 0,
+                                  int64_t data2 = 0);
+
+    virtual void setRegisteredThread(pid_t pid) {
+        mRegisteredClientThread = pid;
+    }
+
+    virtual pid_t getRegisteredThread() {
+        return mRegisteredClientThread;
+    }
+
+protected:
+
+    pid_t              mRegisteredClientThread = ILLEGAL_THREAD_ID;
+
+    SharedRingBuffer*  mUpMessageQueue;
+
+    int32_t            mSampleRate = 0;
+    int32_t            mBytesPerFrame = 0;
+    int32_t            mFramesPerBurst = 0;
+    int32_t            mCapacityInFrames = 0;
+    int32_t            mCapacityInBytes = 0;
+
+    android::Mutex     mLockUpMessageQueue;
+};
+
+} /* namespace aaudio */
+
+#endif //AAUDIO_AAUDIO_SERVICE_STREAM_BASE_H
diff --git a/services/oboeservice/AAudioServiceStreamFakeHal.cpp b/services/oboeservice/AAudioServiceStreamFakeHal.cpp
new file mode 100644
index 0000000..71d3542
--- /dev/null
+++ b/services/oboeservice/AAudioServiceStreamFakeHal.cpp
@@ -0,0 +1,203 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "AAudioService"
+//#define LOG_NDEBUG 0
+#include <utils/Log.h>
+
+#include <atomic>
+
+#include "AudioClock.h"
+#include "AudioEndpointParcelable.h"
+
+#include "AAudioServiceStreamBase.h"
+#include "AAudioServiceStreamFakeHal.h"
+
+#include "FakeAudioHal.h"
+
+using namespace android;
+using namespace aaudio;
+
+// HACK values for Marlin
+#define CARD_ID              0
+#define DEVICE_ID            19
+
+/**
+ * Construct the audio message queuues and message queues.
+ */
+
+AAudioServiceStreamFakeHal::AAudioServiceStreamFakeHal()
+        : AAudioServiceStreamBase()
+        , mStreamId(nullptr)
+        , mPreviousFrameCounter(0)
+        , mAAudioThread()
+{
+}
+
+AAudioServiceStreamFakeHal::~AAudioServiceStreamFakeHal() {
+    ALOGD("AAudioServiceStreamFakeHal::~AAudioServiceStreamFakeHal() call close()");
+    close();
+}
+
+aaudio_result_t AAudioServiceStreamFakeHal::open(aaudio::AAudioStreamRequest &request,
+                                       aaudio::AAudioStreamConfiguration &configurationOutput) {
+    // Open stream on HAL and pass information about the ring buffer to the client.
+    mmap_buffer_info mmapInfo;
+    aaudio_result_t error;
+
+    // Open HAL
+    int bufferCapacity = request.getConfiguration().getBufferCapacity();
+    error = fake_hal_open(CARD_ID, DEVICE_ID, bufferCapacity, &mStreamId);
+    if(error < 0) {
+        ALOGE("Could not open card %d, device %d", CARD_ID, DEVICE_ID);
+        return error;
+    }
+
+    // Get information about the shared audio buffer.
+    error = fake_hal_get_mmap_info(mStreamId, &mmapInfo);
+    if (error < 0) {
+        ALOGE("fake_hal_get_mmap_info returned %d", error);
+        fake_hal_close(mStreamId);
+        mStreamId = nullptr;
+        return error;
+    }
+    mHalFileDescriptor = mmapInfo.fd;
+    mFramesPerBurst = mmapInfo.burst_size_in_frames;
+    mCapacityInFrames = mmapInfo.buffer_capacity_in_frames;
+    mCapacityInBytes = mmapInfo.buffer_capacity_in_bytes;
+    mSampleRate = mmapInfo.sample_rate;
+    mBytesPerFrame = mmapInfo.channel_count * sizeof(int16_t); // FIXME based on data format
+    ALOGD("AAudioServiceStreamFakeHal::open() mmapInfo.burst_size_in_frames = %d",
+         mmapInfo.burst_size_in_frames);
+    ALOGD("AAudioServiceStreamFakeHal::open() mmapInfo.buffer_capacity_in_frames = %d",
+         mmapInfo.buffer_capacity_in_frames);
+    ALOGD("AAudioServiceStreamFakeHal::open() mmapInfo.buffer_capacity_in_bytes = %d",
+         mmapInfo.buffer_capacity_in_bytes);
+
+    // Fill in AAudioStreamConfiguration
+    configurationOutput.setSampleRate(mSampleRate);
+    configurationOutput.setSamplesPerFrame(mmapInfo.channel_count);
+    configurationOutput.setAudioFormat(AAUDIO_FORMAT_PCM_I16);
+
+    return AAUDIO_OK;
+}
+
+/**
+ * Get an immutable description of the in-memory queues
+ * used to communicate with the underlying HAL or Service.
+ */
+aaudio_result_t AAudioServiceStreamFakeHal::getDescription(AudioEndpointParcelable &parcelable) {
+    // Gather information on the message queue.
+    mUpMessageQueue->fillParcelable(parcelable,
+                                    parcelable.mUpMessageQueueParcelable);
+
+    // Gather information on the data queue.
+    // TODO refactor into a SharedRingBuffer?
+    int fdIndex = parcelable.addFileDescriptor(mHalFileDescriptor, mCapacityInBytes);
+    parcelable.mDownDataQueueParcelable.setupMemory(fdIndex, 0, mCapacityInBytes);
+    parcelable.mDownDataQueueParcelable.setBytesPerFrame(mBytesPerFrame);
+    parcelable.mDownDataQueueParcelable.setFramesPerBurst(mFramesPerBurst);
+    parcelable.mDownDataQueueParcelable.setCapacityInFrames(mCapacityInFrames);
+    return AAUDIO_OK;
+}
+
+/**
+ * Start the flow of data.
+ */
+aaudio_result_t AAudioServiceStreamFakeHal::start() {
+    if (mStreamId == nullptr) return AAUDIO_ERROR_NULL;
+    aaudio_result_t result = fake_hal_start(mStreamId);
+    sendServiceEvent(AAUDIO_SERVICE_EVENT_STARTED);
+    mState = AAUDIO_STREAM_STATE_STARTED;
+    if (result == AAUDIO_OK) {
+        mThreadEnabled.store(true);
+        result = mAAudioThread.start(this);
+    }
+    return result;
+}
+
+/**
+ * Stop the flow of data such that start() can resume with loss of data.
+ */
+aaudio_result_t AAudioServiceStreamFakeHal::pause() {
+    if (mStreamId == nullptr) return AAUDIO_ERROR_NULL;
+    sendCurrentTimestamp();
+    aaudio_result_t result = fake_hal_pause(mStreamId);
+    sendServiceEvent(AAUDIO_SERVICE_EVENT_PAUSED);
+    mState = AAUDIO_STREAM_STATE_PAUSED;
+    mFramesRead.reset32();
+    ALOGD("AAudioServiceStreamFakeHal::pause() sent AAUDIO_SERVICE_EVENT_PAUSED");
+    mThreadEnabled.store(false);
+    result = mAAudioThread.stop();
+    return result;
+}
+
+/**
+ *  Discard any data held by the underlying HAL or Service.
+ */
+aaudio_result_t AAudioServiceStreamFakeHal::flush() {
+    if (mStreamId == nullptr) return AAUDIO_ERROR_NULL;
+    // TODO how do we flush an MMAP/NOIRQ buffer? sync pointers?
+    ALOGD("AAudioServiceStreamFakeHal::pause() send AAUDIO_SERVICE_EVENT_FLUSHED");
+    sendServiceEvent(AAUDIO_SERVICE_EVENT_FLUSHED);
+    mState = AAUDIO_STREAM_STATE_FLUSHED;
+    return AAUDIO_OK;
+}
+
+aaudio_result_t AAudioServiceStreamFakeHal::close() {
+    aaudio_result_t result = AAUDIO_OK;
+    if (mStreamId != nullptr) {
+        result = fake_hal_close(mStreamId);
+        mStreamId = nullptr;
+    }
+    return result;
+}
+
+void AAudioServiceStreamFakeHal::sendCurrentTimestamp() {
+    int frameCounter = 0;
+    int error = fake_hal_get_frame_counter(mStreamId, &frameCounter);
+    if (error < 0) {
+        ALOGE("AAudioServiceStreamFakeHal::sendCurrentTimestamp() error %d",
+                error);
+    } else if (frameCounter != mPreviousFrameCounter) {
+        AAudioServiceMessage command;
+        command.what = AAudioServiceMessage::code::TIMESTAMP;
+        mFramesRead.update32(frameCounter);
+        command.timestamp.position = mFramesRead.get();
+        ALOGD("AAudioServiceStreamFakeHal::sendCurrentTimestamp() HAL frames = %d, pos = %d",
+                frameCounter, (int)mFramesRead.get());
+        command.timestamp.timestamp = AudioClock::getNanoseconds();
+        mUpMessageQueue->getFifoBuffer()->write(&command, 1);
+        mPreviousFrameCounter = frameCounter;
+    }
+}
+
+// implement Runnable
+void AAudioServiceStreamFakeHal::run() {
+    TimestampScheduler timestampScheduler;
+    timestampScheduler.setBurstPeriod(mFramesPerBurst, mSampleRate);
+    timestampScheduler.start(AudioClock::getNanoseconds());
+    while(mThreadEnabled.load()) {
+        int64_t nextTime = timestampScheduler.nextAbsoluteTime();
+        if (AudioClock::getNanoseconds() >= nextTime) {
+            sendCurrentTimestamp();
+        } else  {
+            // Sleep until it is time to send the next timestamp.
+            AudioClock::sleepUntilNanoTime(nextTime);
+        }
+    }
+}
+
diff --git a/services/oboeservice/AAudioServiceStreamFakeHal.h b/services/oboeservice/AAudioServiceStreamFakeHal.h
new file mode 100644
index 0000000..e9480fb
--- /dev/null
+++ b/services/oboeservice/AAudioServiceStreamFakeHal.h
@@ -0,0 +1,79 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef AAUDIO_AAUDIO_SERVICE_STREAM_FAKE_HAL_H
+#define AAUDIO_AAUDIO_SERVICE_STREAM_FAKE_HAL_H
+
+#include "AAudioServiceDefinitions.h"
+#include "AAudioServiceStreamBase.h"
+#include "FakeAudioHal.h"
+#include "MonotonicCounter.h"
+#include "AudioEndpointParcelable.h"
+#include "TimestampScheduler.h"
+
+namespace aaudio {
+
+class AAudioServiceStreamFakeHal
+    : public AAudioServiceStreamBase
+    , public Runnable {
+
+public:
+    AAudioServiceStreamFakeHal();
+    virtual ~AAudioServiceStreamFakeHal();
+
+    virtual aaudio_result_t getDescription(AudioEndpointParcelable &parcelable) override;
+
+    virtual aaudio_result_t open(aaudio::AAudioStreamRequest &request,
+                                 aaudio::AAudioStreamConfiguration &configurationOutput) override;
+
+    /**
+     * Start the flow of data.
+     */
+    virtual aaudio_result_t start() override;
+
+    /**
+     * Stop the flow of data such that start() can resume with loss of data.
+     */
+    virtual aaudio_result_t pause() override;
+
+    /**
+     *  Discard any data held by the underlying HAL or Service.
+     */
+    virtual aaudio_result_t flush() override;
+
+    virtual aaudio_result_t close() override;
+
+    void sendCurrentTimestamp();
+
+    virtual void run() override; // to implement Runnable
+
+private:
+    fake_hal_stream_ptr    mStreamId; // Move to HAL
+
+    MonotonicCounter       mFramesWritten;
+    MonotonicCounter       mFramesRead;
+    int                    mHalFileDescriptor = -1;
+    int                    mPreviousFrameCounter = 0;   // from HAL
+
+    aaudio_stream_state_t    mState = AAUDIO_STREAM_STATE_UNINITIALIZED;
+
+    AAudioThread             mAAudioThread;
+    std::atomic<bool>      mThreadEnabled;
+};
+
+} // namespace aaudio
+
+#endif //AAUDIO_AAUDIO_SERVICE_STREAM_FAKE_HAL_H
diff --git a/services/oboeservice/AAudioThread.cpp b/services/oboeservice/AAudioThread.cpp
new file mode 100644
index 0000000..f5e5784
--- /dev/null
+++ b/services/oboeservice/AAudioThread.cpp
@@ -0,0 +1,76 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "AAudioService"
+//#define LOG_NDEBUG 0
+#include <utils/Log.h>
+
+#include <pthread.h>
+
+#include <aaudio/AAudioDefinitions.h>
+
+#include "AAudioThread.h"
+
+using namespace aaudio;
+
+
+AAudioThread::AAudioThread() {
+    // mThread is a pthread_t of unknown size so we need memset.
+    memset(&mThread, 0, sizeof(mThread));
+}
+
+void AAudioThread::dispatch() {
+    if (mRunnable != nullptr) {
+        mRunnable->run();
+    } else {
+        run();
+    }
+}
+
+// This is the entry point for the new thread created by createThread().
+// It converts the 'C' function call to a C++ method call.
+static void * AAudioThread_internalThreadProc(void *arg) {
+    AAudioThread *aaudioThread = (AAudioThread *) arg;
+    aaudioThread->dispatch();
+    return nullptr;
+}
+
+aaudio_result_t AAudioThread::start(Runnable *runnable) {
+    if (mHasThread) {
+        return AAUDIO_ERROR_INVALID_STATE;
+    }
+    mRunnable = runnable; // TODO use atomic?
+    int err = pthread_create(&mThread, nullptr, AAudioThread_internalThreadProc, this);
+    if (err != 0) {
+        ALOGE("AAudioThread::pthread_create() returned %d", err);
+        // TODO convert errno to aaudio_result_t
+        return AAUDIO_ERROR_INTERNAL;
+    } else {
+        mHasThread = true;
+        return AAUDIO_OK;
+    }
+}
+
+aaudio_result_t AAudioThread::stop() {
+    if (!mHasThread) {
+        return AAUDIO_ERROR_INVALID_STATE;
+    }
+    int err = pthread_join(mThread, nullptr);
+    mHasThread = false;
+    // TODO convert errno to aaudio_result_t
+    return err ? AAUDIO_ERROR_INTERNAL : AAUDIO_OK;
+}
+
diff --git a/services/oboeservice/AAudioThread.h b/services/oboeservice/AAudioThread.h
new file mode 100644
index 0000000..a5d43a4
--- /dev/null
+++ b/services/oboeservice/AAudioThread.h
@@ -0,0 +1,73 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef AAUDIO_THREAD_H
+#define AAUDIO_THREAD_H
+
+#include <atomic>
+#include <pthread.h>
+
+#include <aaudio/AAudioDefinitions.h>
+
+namespace aaudio {
+
+class Runnable {
+public:
+    Runnable() {};
+    virtual ~Runnable() = default;
+
+    virtual void run() {}
+};
+
+/**
+ * Abstraction for a host thread.
+ */
+class AAudioThread
+{
+public:
+    AAudioThread();
+    AAudioThread(Runnable *runnable);
+    virtual ~AAudioThread() = default;
+
+    /**
+     * Start the thread running.
+     */
+    aaudio_result_t start(Runnable *runnable = nullptr);
+
+    /**
+     * Join the thread.
+     * The caller must somehow tell the thread to exit before calling join().
+     */
+    aaudio_result_t stop();
+
+    /**
+     * This will get called in the thread.
+     * Override this or pass a Runnable to start().
+     */
+    virtual void run() {};
+
+    void dispatch(); // called internally from 'C' thread wrapper
+
+private:
+    Runnable*          mRunnable = nullptr; // TODO make atomic with memory barrier?
+    bool               mHasThread = false;
+    pthread_t          mThread; // initialized in constructor
+
+};
+
+} /* namespace aaudio */
+
+#endif ///AAUDIO_THREAD_H
diff --git a/services/oboeservice/Android.mk b/services/oboeservice/Android.mk
new file mode 100644
index 0000000..5cd9121
--- /dev/null
+++ b/services/oboeservice/Android.mk
@@ -0,0 +1,54 @@
+LOCAL_PATH:= $(call my-dir)
+
+# AAudio Service
+include $(CLEAR_VARS)
+
+LOCAL_MODULE := aaudioservice
+LOCAL_MODULE_TAGS := optional
+
+LIBAAUDIO_DIR := ../../media/libaaudio
+LIBAAUDIO_SRC_DIR := $(LIBAAUDIO_DIR)/src
+
+LOCAL_C_INCLUDES := \
+    $(call include-path-for, audio-utils) \
+    frameworks/native/include \
+    system/core/base/include \
+    $(TOP)/frameworks/native/media/libaaudio/include/include \
+    $(TOP)/frameworks/av/media/libaaudio/include \
+    frameworks/native/include \
+    $(TOP)/external/tinyalsa/include \
+    $(TOP)/frameworks/av/media/libaaudio/src \
+    $(TOP)/frameworks/av/media/libaaudio/src/binding \
+    $(TOP)/frameworks/av/media/libaaudio/src/client \
+    $(TOP)/frameworks/av/media/libaaudio/src/core \
+    $(TOP)/frameworks/av/media/libaaudio/src/fifo \
+    $(TOP)/frameworks/av/media/libaaudio/src/utility
+
+# TODO These could be in a libaaudio_common library
+LOCAL_SRC_FILES += \
+    $(LIBAAUDIO_SRC_DIR)/utility/HandleTracker.cpp \
+    $(LIBAAUDIO_SRC_DIR)/utility/AAudioUtilities.cpp \
+    $(LIBAAUDIO_SRC_DIR)/fifo/FifoBuffer.cpp \
+    $(LIBAAUDIO_SRC_DIR)/fifo/FifoControllerBase.cpp \
+    $(LIBAAUDIO_SRC_DIR)/binding/SharedMemoryParcelable.cpp \
+    $(LIBAAUDIO_SRC_DIR)/binding/SharedRegionParcelable.cpp \
+    $(LIBAAUDIO_SRC_DIR)/binding/RingBufferParcelable.cpp \
+    $(LIBAAUDIO_SRC_DIR)/binding/AudioEndpointParcelable.cpp \
+    $(LIBAAUDIO_SRC_DIR)/binding/AAudioStreamRequest.cpp \
+    $(LIBAAUDIO_SRC_DIR)/binding/AAudioStreamConfiguration.cpp \
+    $(LIBAAUDIO_SRC_DIR)/binding/IAAudioService.cpp \
+    SharedRingBuffer.cpp \
+    FakeAudioHal.cpp \
+    AAudioService.cpp \
+    AAudioServiceStreamBase.cpp \
+    AAudioServiceStreamFakeHal.cpp \
+    TimestampScheduler.cpp \
+    AAudioServiceMain.cpp \
+    AAudioThread.cpp
+
+LOCAL_CFLAGS += -Wno-unused-parameter
+LOCAL_CFLAGS += -Wall -Werror
+
+LOCAL_SHARED_LIBRARIES :=  libbinder libcutils libutils liblog libtinyalsa
+
+include $(BUILD_EXECUTABLE)
diff --git a/services/oboeservice/FakeAudioHal.cpp b/services/oboeservice/FakeAudioHal.cpp
new file mode 100644
index 0000000..122671e
--- /dev/null
+++ b/services/oboeservice/FakeAudioHal.cpp
@@ -0,0 +1,235 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Simple fake HAL that supports ALSA MMAP/NOIRQ mode.
+ */
+
+#include <iostream>
+#include <math.h>
+#include <limits>
+#include <string.h>
+#include <unistd.h>
+
+#include <sound/asound.h>
+
+#include "tinyalsa/asoundlib.h"
+
+#include "FakeAudioHal.h"
+
+//using namespace aaudio;
+
+using sample_t = int16_t;
+using std::cout;
+using std::endl;
+
+#undef SNDRV_PCM_IOCTL_SYNC_PTR
+#define SNDRV_PCM_IOCTL_SYNC_PTR 0xc0884123
+#define PCM_ERROR_MAX 128
+
+const int SAMPLE_RATE = 48000;       // Hz
+const int CHANNEL_COUNT = 2;
+
+struct pcm {
+    int fd;
+    unsigned int flags;
+    int running:1;
+    int prepared:1;
+    int underruns;
+    unsigned int buffer_size;
+    unsigned int boundary;
+    char error[PCM_ERROR_MAX];
+    struct pcm_config config;
+    struct snd_pcm_mmap_status *mmap_status;
+    struct snd_pcm_mmap_control *mmap_control;
+    struct snd_pcm_sync_ptr *sync_ptr;
+    void *mmap_buffer;
+    unsigned int noirq_frames_per_msec;
+    int wait_for_avail_min;
+};
+
+static int pcm_sync_ptr(struct pcm *pcm, int flags) {
+    if (pcm->sync_ptr) {
+        pcm->sync_ptr->flags = flags;
+        if (ioctl(pcm->fd, SNDRV_PCM_IOCTL_SYNC_PTR, pcm->sync_ptr) < 0)
+            return -1;
+    }
+    return 0;
+}
+
+int pcm_get_hw_ptr(struct pcm* pcm, unsigned int* hw_ptr) {
+    if (!hw_ptr || !pcm) return -EINVAL;
+
+    int result = pcm_sync_ptr(pcm, SNDRV_PCM_SYNC_PTR_HWSYNC);
+    if (!result) {
+        *hw_ptr = pcm->sync_ptr->s.status.hw_ptr;
+    }
+
+    return result;
+}
+
+typedef struct stream_tracker {
+    struct pcm * pcm;
+    int          framesPerBurst;
+    sample_t   * hwBuffer;
+    int32_t      capacityInFrames;
+    int32_t      capacityInBytes;
+} stream_tracker_t;
+
+#define FRAMES_PER_BURST_QUALCOMM 192
+#define FRAMES_PER_BURST_NVIDIA   128
+
+int fake_hal_open(int card_id, int device_id,
+                  int frameCapacity,
+                  fake_hal_stream_ptr *streamPP) {
+    int framesPerBurst = FRAMES_PER_BURST_QUALCOMM; // TODO update as needed
+    int periodCountRequested = frameCapacity / framesPerBurst;
+    int periodCount = 32;
+    unsigned int offset1;
+    unsigned int frames1;
+    void *area = nullptr;
+    int mmapAvail = 0;
+
+    // Try to match requested size with a power of 2.
+    while (periodCount < periodCountRequested && periodCount < 1024) {
+        periodCount *= 2;
+    }
+    std::cout << "fake_hal_open() requested frameCapacity = " << frameCapacity << std::endl;
+    std::cout << "fake_hal_open() periodCountRequested = " << periodCountRequested << std::endl;
+    std::cout << "fake_hal_open() periodCount = " << periodCount << std::endl;
+
+    // Configuration for an ALSA stream.
+    pcm_config cfg;
+    memset(&cfg, 0, sizeof(cfg));
+    cfg.channels = CHANNEL_COUNT;
+    cfg.format = PCM_FORMAT_S16_LE;
+    cfg.rate = SAMPLE_RATE;
+    cfg.period_count = periodCount;
+    cfg.period_size = framesPerBurst;
+    cfg.start_threshold = 0; // for NOIRQ, should just start, was     framesPerBurst;
+    cfg.stop_threshold = INT32_MAX;
+    cfg.silence_size = 0;
+    cfg.silence_threshold = 0;
+    cfg.avail_min = framesPerBurst;
+
+    stream_tracker_t *streamTracker = (stream_tracker_t *) malloc(sizeof(stream_tracker_t));
+    if (streamTracker == nullptr) {
+        return -1;
+    }
+    memset(streamTracker, 0, sizeof(stream_tracker_t));
+
+    streamTracker->pcm = pcm_open(card_id, device_id, PCM_OUT | PCM_MMAP | PCM_NOIRQ, &cfg);
+    if (streamTracker->pcm == nullptr) {
+        cout << "Could not open device." << endl;
+        free(streamTracker);
+        return -1;
+    }
+
+    streamTracker->framesPerBurst = cfg.period_size; // Get from ALSA
+    streamTracker->capacityInFrames = pcm_get_buffer_size(streamTracker->pcm);
+    streamTracker->capacityInBytes = pcm_frames_to_bytes(streamTracker->pcm, streamTracker->capacityInFrames);
+    std::cout << "fake_hal_open() streamTracker->framesPerBurst = " << streamTracker->framesPerBurst << std::endl;
+    std::cout << "fake_hal_open() streamTracker->capacityInFrames = " << streamTracker->capacityInFrames << std::endl;
+
+    if (pcm_is_ready(streamTracker->pcm) < 0) {
+        cout << "Device is not ready." << endl;
+        goto error;
+    }
+
+    if (pcm_prepare(streamTracker->pcm) < 0) {
+        cout << "Device could not be prepared." << endl;
+        cout << "For Marlin, please enter:" << endl;
+        cout << "   adb shell" << endl;
+        cout << "   tinymix \"QUAT_MI2S_RX Audio Mixer MultiMedia8\" 1" << endl;
+        goto error;
+    }
+    mmapAvail = pcm_mmap_avail(streamTracker->pcm);
+    if (mmapAvail <= 0) {
+        cout << "fake_hal_open() mmap_avail is <=0" << endl;
+        goto error;
+    }
+    cout << "fake_hal_open() mmap_avail = " << mmapAvail << endl;
+
+    // Where is the memory mapped area?
+    if (pcm_mmap_begin(streamTracker->pcm, &area, &offset1, &frames1) < 0)  {
+        cout << "fake_hal_open() pcm_mmap_begin failed" << endl;
+        goto error;
+    }
+
+    // Clear the buffer.
+    memset((sample_t*) area, 0, streamTracker->capacityInBytes);
+    streamTracker->hwBuffer = (sample_t*) area;
+    streamTracker->hwBuffer[0] = 32000; // impulse
+
+    // Prime the buffer so it can start.
+    if (pcm_mmap_commit(streamTracker->pcm, 0, framesPerBurst) < 0) {
+        cout << "fake_hal_open() pcm_mmap_commit failed" << endl;
+        goto error;
+    }
+
+    *streamPP = streamTracker;
+    return 1;
+
+error:
+    fake_hal_close(streamTracker);
+    return -1;
+}
+
+int fake_hal_get_mmap_info(fake_hal_stream_ptr stream, mmap_buffer_info *info) {
+    stream_tracker_t *streamTracker = (stream_tracker_t *) stream;
+    info->fd = streamTracker->pcm->fd; // TODO use tinyalsa function
+    info->hw_buffer = streamTracker->hwBuffer;
+    info->burst_size_in_frames = streamTracker->framesPerBurst;
+    info->buffer_capacity_in_frames = streamTracker->capacityInFrames;
+    info->buffer_capacity_in_bytes = streamTracker->capacityInBytes;
+    info->sample_rate = SAMPLE_RATE;
+    info->channel_count = CHANNEL_COUNT;
+    return 0;
+}
+
+int fake_hal_start(fake_hal_stream_ptr stream) {
+    stream_tracker_t *streamTracker = (stream_tracker_t *) stream;
+    if (pcm_start(streamTracker->pcm) < 0) {
+        cout << "fake_hal_start failed" << endl;
+        return -1;
+    }
+    return 0;
+}
+
+int fake_hal_pause(fake_hal_stream_ptr stream) {
+    stream_tracker_t *streamTracker = (stream_tracker_t *) stream;
+    if (pcm_stop(streamTracker->pcm) < 0) {
+        cout << "fake_hal_stop failed" << endl;
+        return -1;
+    }
+    return 0;
+}
+
+int fake_hal_get_frame_counter(fake_hal_stream_ptr stream, int *frame_counter) {
+    stream_tracker_t *streamTracker = (stream_tracker_t *) stream;
+    if (pcm_get_hw_ptr(streamTracker->pcm, (unsigned int *)frame_counter) < 0) {
+        cout << "fake_hal_get_frame_counter failed" << endl;
+        return -1;
+    }
+    return 0;
+}
+
+int fake_hal_close(fake_hal_stream_ptr stream) {
+    stream_tracker_t *streamTracker = (stream_tracker_t *) stream;
+    pcm_close(streamTracker->pcm);
+    free(streamTracker);
+    return 0;
+}
+
diff --git a/services/oboeservice/FakeAudioHal.h b/services/oboeservice/FakeAudioHal.h
new file mode 100644
index 0000000..d3aa4e8
--- /dev/null
+++ b/services/oboeservice/FakeAudioHal.h
@@ -0,0 +1,60 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * Simple fake HAL that supports ALSA MMAP/NOIRQ mode.
+ */
+
+#ifndef FAKE_AUDIO_HAL_H
+#define FAKE_AUDIO_HAL_H
+
+//namespace aaudio {
+
+using sample_t = int16_t;
+struct mmap_buffer_info {
+    int       fd;
+    int32_t   burst_size_in_frames;
+    int32_t   buffer_capacity_in_frames;
+    int32_t   buffer_capacity_in_bytes;
+    int32_t   sample_rate;
+    int32_t   channel_count;
+    sample_t *hw_buffer;
+};
+
+typedef void *fake_hal_stream_ptr;
+
+//extern "C"
+//{
+
+int fake_hal_open(int card_id, int device_id,
+                  int frameCapacity,
+                  fake_hal_stream_ptr *stream_pp);
+
+int fake_hal_get_mmap_info(fake_hal_stream_ptr stream, mmap_buffer_info *info);
+
+int fake_hal_start(fake_hal_stream_ptr stream);
+
+int fake_hal_pause(fake_hal_stream_ptr stream);
+
+int fake_hal_get_frame_counter(fake_hal_stream_ptr stream, int *frame_counter);
+
+int fake_hal_close(fake_hal_stream_ptr stream);
+
+//} /* "C" */
+
+//} /* namespace aaudio */
+
+#endif // FAKE_AUDIO_HAL_H
diff --git a/services/oboeservice/SharedRingBuffer.cpp b/services/oboeservice/SharedRingBuffer.cpp
new file mode 100644
index 0000000..9ac8fdf
--- /dev/null
+++ b/services/oboeservice/SharedRingBuffer.cpp
@@ -0,0 +1,96 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "AAudioService"
+//#define LOG_NDEBUG 0
+#include <utils/Log.h>
+
+#include "AudioClock.h"
+#include "AudioEndpointParcelable.h"
+
+//#include "AAudioServiceStreamBase.h"
+//#include "AAudioServiceStreamFakeHal.h"
+
+#include "SharedRingBuffer.h"
+
+using namespace android;
+using namespace aaudio;
+
+SharedRingBuffer::~SharedRingBuffer()
+{
+    if (mSharedMemory != nullptr) {
+        delete mFifoBuffer;
+        munmap(mSharedMemory, mSharedMemorySizeInBytes);
+        close(mFileDescriptor);
+        mSharedMemory = nullptr;
+    }
+}
+
+aaudio_result_t SharedRingBuffer::allocate(fifo_frames_t   bytesPerFrame,
+                                         fifo_frames_t   capacityInFrames) {
+    mCapacityInFrames = capacityInFrames;
+
+    // Create shared memory large enough to hold the data and the read and write counters.
+    mDataMemorySizeInBytes = bytesPerFrame * capacityInFrames;
+    mSharedMemorySizeInBytes = mDataMemorySizeInBytes + (2 * (sizeof(fifo_counter_t)));
+    mFileDescriptor = ashmem_create_region("AAudioSharedRingBuffer", mSharedMemorySizeInBytes);
+    if (mFileDescriptor < 0) {
+        ALOGE("SharedRingBuffer::allocate() ashmem_create_region() failed %d", errno);
+        return AAUDIO_ERROR_INTERNAL;
+    }
+    int err = ashmem_set_prot_region(mFileDescriptor, PROT_READ|PROT_WRITE); // TODO error handling?
+    if (err < 0) {
+        ALOGE("SharedRingBuffer::allocate() ashmem_set_prot_region() failed %d", errno);
+        close(mFileDescriptor);
+        return AAUDIO_ERROR_INTERNAL; // TODO convert errno to a better AAUDIO_ERROR;
+    }
+
+    // Map the fd to memory addresses.
+    mSharedMemory = (uint8_t *) mmap(0, mSharedMemorySizeInBytes,
+                         PROT_READ|PROT_WRITE,
+                         MAP_SHARED,
+                         mFileDescriptor, 0);
+    if (mSharedMemory == MAP_FAILED) {
+        ALOGE("SharedRingBuffer::allocate() mmap() failed %d", errno);
+        close(mFileDescriptor);
+        return AAUDIO_ERROR_INTERNAL; // TODO convert errno to a better AAUDIO_ERROR;
+    }
+
+    // Get addresses for our counters and data from the shared memory.
+    fifo_counter_t *readCounterAddress =
+            (fifo_counter_t *) &mSharedMemory[SHARED_RINGBUFFER_READ_OFFSET];
+    fifo_counter_t *writeCounterAddress =
+            (fifo_counter_t *) &mSharedMemory[SHARED_RINGBUFFER_WRITE_OFFSET];
+    uint8_t *dataAddress = &mSharedMemory[SHARED_RINGBUFFER_DATA_OFFSET];
+
+    mFifoBuffer = new(std::nothrow) FifoBuffer(bytesPerFrame, capacityInFrames,
+                                 readCounterAddress, writeCounterAddress, dataAddress);
+    return (mFifoBuffer == nullptr) ? AAUDIO_ERROR_NO_MEMORY : AAUDIO_OK;
+}
+
+void SharedRingBuffer::fillParcelable(AudioEndpointParcelable &endpointParcelable,
+                    RingBufferParcelable &ringBufferParcelable) {
+    int fdIndex = endpointParcelable.addFileDescriptor(mFileDescriptor, mSharedMemorySizeInBytes);
+    ringBufferParcelable.setupMemory(fdIndex,
+                                     SHARED_RINGBUFFER_DATA_OFFSET,
+                                     mDataMemorySizeInBytes,
+                                     SHARED_RINGBUFFER_READ_OFFSET,
+                                     SHARED_RINGBUFFER_WRITE_OFFSET,
+                                     sizeof(fifo_counter_t));
+    ringBufferParcelable.setBytesPerFrame(mFifoBuffer->getBytesPerFrame());
+    ringBufferParcelable.setFramesPerBurst(1);
+    ringBufferParcelable.setCapacityInFrames(mCapacityInFrames);
+}
diff --git a/services/oboeservice/SharedRingBuffer.h b/services/oboeservice/SharedRingBuffer.h
new file mode 100644
index 0000000..75f138b
--- /dev/null
+++ b/services/oboeservice/SharedRingBuffer.h
@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef AAUDIO_SHARED_RINGBUFFER_H
+#define AAUDIO_SHARED_RINGBUFFER_H
+
+#include <stdint.h>
+#include <cutils/ashmem.h>
+#include <sys/mman.h>
+
+#include "fifo/FifoBuffer.h"
+#include "RingBufferParcelable.h"
+#include "AudioEndpointParcelable.h"
+
+namespace aaudio {
+
+// Determine the placement of the counters and data in shared memory.
+#define SHARED_RINGBUFFER_READ_OFFSET   0
+#define SHARED_RINGBUFFER_WRITE_OFFSET  sizeof(fifo_counter_t)
+#define SHARED_RINGBUFFER_DATA_OFFSET   (SHARED_RINGBUFFER_WRITE_OFFSET + sizeof(fifo_counter_t))
+
+/**
+ * Atomic FIFO that uses shared memory.
+ */
+class SharedRingBuffer {
+public:
+    SharedRingBuffer() {}
+
+    virtual ~SharedRingBuffer();
+
+    aaudio_result_t allocate(fifo_frames_t bytesPerFrame, fifo_frames_t capacityInFrames);
+
+    void fillParcelable(AudioEndpointParcelable &endpointParcelable,
+                        RingBufferParcelable &ringBufferParcelable);
+
+    FifoBuffer * getFifoBuffer() {
+        return mFifoBuffer;
+    }
+
+private:
+    int            mFileDescriptor = -1;
+    FifoBuffer   * mFifoBuffer = nullptr;
+    uint8_t      * mSharedMemory = nullptr;
+    int32_t        mSharedMemorySizeInBytes = 0;
+    int32_t        mDataMemorySizeInBytes = 0;
+    fifo_frames_t  mCapacityInFrames = 0;
+};
+
+} /* namespace aaudio */
+
+#endif //AAUDIO_SHARED_RINGBUFFER_H
diff --git a/services/oboeservice/TimestampScheduler.cpp b/services/oboeservice/TimestampScheduler.cpp
new file mode 100644
index 0000000..d54996f
--- /dev/null
+++ b/services/oboeservice/TimestampScheduler.cpp
@@ -0,0 +1,44 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// for random()
+#include <stdlib.h>
+
+#include "TimestampScheduler.h"
+
+using namespace aaudio;
+
+void TimestampScheduler::start(int64_t startTime) {
+    mStartTime = startTime;
+    mLastTime = startTime;
+}
+
+int64_t TimestampScheduler::nextAbsoluteTime() {
+    int64_t periodsElapsed = (mLastTime - mStartTime) / mBurstPeriod;
+    // This is an arbitrary schedule that could probably be improved.
+    // It starts out sending a timestamp on every period because we want to
+    // get an accurate picture when the stream starts. Then it slows down
+    // to the occasional timestamps needed to detect a slow drift.
+    int64_t minPeriodsToDelay = (periodsElapsed < 10) ? 1 :
+        (periodsElapsed < 100) ? 3 :
+        (periodsElapsed < 1000) ? 10 : 50;
+    int64_t sleepTime = minPeriodsToDelay * mBurstPeriod;
+    // Generate a random rectangular distribution one burst wide so that we get
+    // an uncorrelated sampling of the MMAP pointer.
+    sleepTime += (int64_t)(random() * mBurstPeriod / RAND_MAX);
+    mLastTime += sleepTime;
+    return mLastTime;
+}
diff --git a/services/oboeservice/TimestampScheduler.h b/services/oboeservice/TimestampScheduler.h
new file mode 100644
index 0000000..91a2477
--- /dev/null
+++ b/services/oboeservice/TimestampScheduler.h
@@ -0,0 +1,77 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef AAUDIO_TIMESTAMP_SCHEDULER_H
+#define AAUDIO_TIMESTAMP_SCHEDULER_H
+
+
+
+#include "IAAudioService.h"
+#include "AAudioServiceDefinitions.h"
+#include "AudioStream.h"
+#include "fifo/FifoBuffer.h"
+#include "SharedRingBuffer.h"
+#include "AudioEndpointParcelable.h"
+#include "utility/AudioClock.h"
+
+namespace aaudio {
+
+/**
+ * Schedule wakeup time for monitoring the position
+ * of an MMAP/NOIRQ buffer.
+ *
+ * Note that this object is not thread safe. Only call it from a single thread.
+ */
+class TimestampScheduler
+{
+public:
+    TimestampScheduler() {};
+    virtual ~TimestampScheduler() = default;
+
+    /**
+     * Start the schedule at the given time.
+     */
+    void start(int64_t startTime);
+
+    /**
+     * Calculate the next time that the read position should be
+     * measured.
+     */
+    int64_t nextAbsoluteTime();
+
+    void setBurstPeriod(int64_t burstPeriod) {
+        mBurstPeriod = burstPeriod;
+    }
+
+    void setBurstPeriod(int32_t framesPerBurst,
+                        int32_t sampleRate) {
+        mBurstPeriod = AAUDIO_NANOS_PER_SECOND * framesPerBurst / sampleRate;
+    }
+
+    int64_t getBurstPeriod() {
+        return mBurstPeriod;
+    }
+
+private:
+    // Start with an arbitrary default so we do not divide by zero.
+    int64_t mBurstPeriod = AAUDIO_NANOS_PER_MILLISECOND;
+    int64_t mStartTime;
+    int64_t mLastTime;
+};
+
+} /* namespace aaudio */
+
+#endif /* AAUDIO_TIMESTAMP_SCHEDULER_H */
diff --git a/services/radio/Android.mk b/services/radio/Android.mk
index fc8f00c..1b50dc3 100644
--- a/services/radio/Android.mk
+++ b/services/radio/Android.mk
@@ -17,7 +17,7 @@
 include $(CLEAR_VARS)
 
 
-LOCAL_SRC_FILES:=               \
+LOCAL_SRC_FILES:= \
     RadioService.cpp
 
 LOCAL_SHARED_LIBRARIES:= \
@@ -30,6 +30,26 @@
     libradio \
     libradio_metadata
 
+ifeq ($(USE_LEGACY_LOCAL_AUDIO_HAL),true)
+# libhardware configuration
+LOCAL_SRC_FILES +=               \
+    RadioHalLegacy.cpp
+else
+# Treble configuration
+
+LOCAL_SRC_FILES += \
+    HidlUtils.cpp \
+    RadioHalHidl.cpp
+
+LOCAL_SHARED_LIBRARIES += \
+    libhwbinder \
+    libhidlbase \
+    libhidltransport \
+    libbase \
+    libaudiohal \
+    android.hardware.broadcastradio@1.0
+endif
+
 LOCAL_CFLAGS += -Wall -Wextra -Werror
 
 LOCAL_MULTILIB := $(AUDIOSERVER_MULTILIB)
diff --git a/services/radio/HidlUtils.cpp b/services/radio/HidlUtils.cpp
new file mode 100644
index 0000000..6895377
--- /dev/null
+++ b/services/radio/HidlUtils.cpp
@@ -0,0 +1,180 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#define LOG_TAG "HidlUtils"
+//#define LOG_NDEBUG 0
+
+#include <utils/Log.h>
+#include <utils/misc.h>
+#include <system/radio_metadata.h>
+
+#include "HidlUtils.h"
+
+namespace android {
+
+using android::hardware::broadcastradio::V1_0::MetadataType;
+using android::hardware::broadcastradio::V1_0::Band;
+using android::hardware::broadcastradio::V1_0::Deemphasis;
+using android::hardware::broadcastradio::V1_0::Rds;
+
+//static
+int HidlUtils::convertHalResult(Result result)
+{
+    switch (result) {
+        case Result::OK:
+            return 0;
+        case Result::INVALID_ARGUMENTS:
+            return -EINVAL;
+        case Result::INVALID_STATE:
+            return -ENOSYS;
+        case Result::TIMEOUT:
+            return -ETIMEDOUT;
+        case Result::NOT_INITIALIZED:
+        default:
+            return -ENODEV;
+    }
+}
+
+
+//static
+void HidlUtils::convertBandConfigToHal(BandConfig *halConfig,
+                                       const radio_hal_band_config_t *config)
+{
+    halConfig->type = static_cast<Band>(config->type);
+    halConfig->antennaConnected = config->antenna_connected;
+    halConfig->lowerLimit = config->lower_limit;
+    halConfig->upperLimit = config->upper_limit;
+    halConfig->spacings.setToExternal(const_cast<unsigned int *>(&config->spacings[0]),
+                                       config->num_spacings * sizeof(uint32_t));
+    // FIXME: transfer buffer ownership. should have a method for that in hidl_vec
+    halConfig->spacings.resize(config->num_spacings);
+
+    if (halConfig->type == Band::FM) {
+        halConfig->ext.fm.deemphasis = static_cast<Deemphasis>(config->fm.deemphasis);
+        halConfig->ext.fm.stereo = config->fm.stereo;
+        halConfig->ext.fm.rds = static_cast<Rds>(config->fm.rds);
+        halConfig->ext.fm.ta = config->fm.ta;
+        halConfig->ext.fm.af = config->fm.af;
+        halConfig->ext.fm.ea = config->fm.ea;
+    } else {
+        halConfig->ext.am.stereo = config->am.stereo;
+    }
+}
+
+//static
+void HidlUtils::convertPropertiesFromHal(radio_hal_properties_t *properties,
+                                         const Properties *halProperties)
+{
+    properties->class_id = static_cast<radio_class_t>(halProperties->classId);
+    strlcpy(properties->implementor, halProperties->implementor.c_str(), RADIO_STRING_LEN_MAX);
+    strlcpy(properties->product, halProperties->product.c_str(), RADIO_STRING_LEN_MAX);
+    strlcpy(properties->version, halProperties->version.c_str(), RADIO_STRING_LEN_MAX);
+    strlcpy(properties->serial, halProperties->serial.c_str(), RADIO_STRING_LEN_MAX);
+    properties->num_tuners = halProperties->numTuners;
+    properties->num_audio_sources = halProperties->numAudioSources;
+    properties->supports_capture = halProperties->supportsCapture;
+    properties->num_bands = halProperties->bands.size();
+
+    for (size_t i = 0; i < halProperties->bands.size(); i++) {
+        convertBandConfigFromHal(&properties->bands[i], &halProperties->bands[i]);
+    }
+}
+
+//static
+void HidlUtils::convertBandConfigFromHal(radio_hal_band_config_t *config,
+                                         const BandConfig *halConfig)
+{
+    config->type = static_cast<radio_band_t>(halConfig->type);
+    config->antenna_connected = halConfig->antennaConnected;
+    config->lower_limit = halConfig->lowerLimit;
+    config->upper_limit = halConfig->upperLimit;
+    config->num_spacings = halConfig->spacings.size();
+    if (config->num_spacings > RADIO_NUM_SPACINGS_MAX) {
+        config->num_spacings = RADIO_NUM_SPACINGS_MAX;
+    }
+    memcpy(config->spacings, halConfig->spacings.data(),
+           sizeof(uint32_t) * config->num_spacings);
+
+    if (halConfig->type == Band::FM) {
+        config->fm.deemphasis = static_cast<radio_deemphasis_t>(halConfig->ext.fm.deemphasis);
+        config->fm.stereo = halConfig->ext.fm.stereo;
+        config->fm.rds = static_cast<radio_rds_t>(halConfig->ext.fm.rds);
+        config->fm.ta = halConfig->ext.fm.ta;
+        config->fm.af = halConfig->ext.fm.af;
+        config->fm.ea = halConfig->ext.fm.ea;
+    } else {
+        config->am.stereo = halConfig->ext.am.stereo;
+    }
+}
+
+
+//static
+void HidlUtils::convertProgramInfoFromHal(radio_program_info_t *info,
+                                          const ProgramInfo *halInfo)
+{
+    info->channel = halInfo->channel;
+    info->sub_channel = halInfo->subChannel;
+    info->tuned = halInfo->tuned;
+    info->stereo = halInfo->stereo;
+    info->digital = halInfo->digital;
+    info->signal_strength = halInfo->signalStrength;
+    convertMetaDataFromHal(&info->metadata, halInfo->metadata,
+                           halInfo->channel, halInfo->subChannel);
+}
+
+// TODO(twasilczyk): drop unnecessary channel info
+//static
+void HidlUtils::convertMetaDataFromHal(radio_metadata_t **metadata,
+                                       const hidl_vec<MetaData>& halMetadata,
+                                       uint32_t channel __unused,
+                                       uint32_t subChannel __unused)
+{
+
+    if (metadata == nullptr || *metadata == nullptr) {
+        ALOGE("destination metadata buffer is a nullptr");
+        return;
+    }
+    for (size_t i = 0; i < halMetadata.size(); i++) {
+        radio_metadata_key_t key = static_cast<radio_metadata_key_t>(halMetadata[i].key);
+        radio_metadata_type_t type = static_cast<radio_metadata_key_t>(halMetadata[i].type);
+        radio_metadata_clock_t clock;
+
+        switch (type) {
+        case RADIO_METADATA_TYPE_INT:
+            radio_metadata_add_int(metadata, key, halMetadata[i].intValue);
+            break;
+        case RADIO_METADATA_TYPE_TEXT:
+            radio_metadata_add_text(metadata, key, halMetadata[i].stringValue.c_str());
+            break;
+        case RADIO_METADATA_TYPE_RAW:
+            radio_metadata_add_raw(metadata, key,
+                                   halMetadata[i].rawValue.data(),
+                                   halMetadata[i].rawValue.size());
+            break;
+        case RADIO_METADATA_TYPE_CLOCK:
+            clock.utc_seconds_since_epoch =
+                    halMetadata[i].clockValue.utcSecondsSinceEpoch;
+            clock.timezone_offset_in_minutes =
+                    halMetadata[i].clockValue.timezoneOffsetInMinutes;
+            radio_metadata_add_clock(metadata, key, &clock);
+            break;
+        default:
+            ALOGW("%s invalid metadata type %u",__FUNCTION__, halMetadata[i].type);
+            break;
+        }
+    }
+}
+
+}  // namespace android
diff --git a/services/radio/HidlUtils.h b/services/radio/HidlUtils.h
new file mode 100644
index 0000000..c771060
--- /dev/null
+++ b/services/radio/HidlUtils.h
@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#ifndef ANDROID_HARDWARE_RADIO_HAL_HIDL_UTILS_H
+#define ANDROID_HARDWARE_RADIO_HAL_HIDL_UTILS_H
+
+#include <android/hardware/broadcastradio/1.0/types.h>
+#include <hardware/radio.h>
+
+namespace android {
+
+using android::hardware::hidl_vec;
+using android::hardware::broadcastradio::V1_0::Result;
+using android::hardware::broadcastradio::V1_0::Properties;
+using android::hardware::broadcastradio::V1_0::BandConfig;
+using android::hardware::broadcastradio::V1_0::ProgramInfo;
+using android::hardware::broadcastradio::V1_0::MetaData;
+
+class HidlUtils {
+public:
+    static int convertHalResult(Result result);
+    static void convertBandConfigFromHal(radio_hal_band_config_t *config,
+                                         const BandConfig *halConfig);
+    static void convertPropertiesFromHal(radio_hal_properties_t *properties,
+                                         const Properties *halProperties);
+    static void convertBandConfigToHal(BandConfig *halConfig,
+                                       const radio_hal_band_config_t *config);
+    static void convertProgramInfoFromHal(radio_program_info_t *info,
+                                          const ProgramInfo *halInfo);
+    static void convertMetaDataFromHal(radio_metadata_t **metadata,
+                                       const hidl_vec<MetaData>& halMetadata,
+                                       uint32_t channel,
+                                       uint32_t subChannel);
+};
+
+}  // namespace android
+
+#endif  // ANDROID_HARDWARE_RADIO_HAL_HIDL_UTILS_H
diff --git a/services/radio/RadioHalHidl.cpp b/services/radio/RadioHalHidl.cpp
new file mode 100644
index 0000000..bfc5500
--- /dev/null
+++ b/services/radio/RadioHalHidl.cpp
@@ -0,0 +1,382 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "RadioHalHidl"
+//#define LOG_NDEBUG 0
+
+#include <media/audiohal/hidl/HalDeathHandler.h>
+#include <utils/Log.h>
+#include <utils/misc.h>
+#include <system/RadioMetadataWrapper.h>
+#include <android/hardware/broadcastradio/1.0/IBroadcastRadioFactory.h>
+
+#include "RadioHalHidl.h"
+#include "HidlUtils.h"
+
+namespace android {
+
+using android::hardware::broadcastradio::V1_0::IBroadcastRadioFactory;
+using android::hardware::broadcastradio::V1_0::Class;
+using android::hardware::broadcastradio::V1_0::Direction;
+using android::hardware::broadcastradio::V1_0::Properties;
+
+
+/* static */
+sp<RadioInterface> RadioInterface::connectModule(radio_class_t classId)
+{
+    return new RadioHalHidl(classId);
+}
+
+int RadioHalHidl::getProperties(radio_hal_properties_t *properties)
+{
+    ALOGV("%s IN", __FUNCTION__);
+    sp<IBroadcastRadio> module = getService();
+    if (module == 0) {
+        return -ENODEV;
+    }
+    Properties halProperties;
+    Result halResult = Result::NOT_INITIALIZED;
+    Return<void> hidlReturn =
+            module->getProperties([&](Result result, const Properties& properties) {
+                    halResult = result;
+                    if (result == Result::OK) {
+                        halProperties = properties;
+                    }
+                });
+
+    if (halResult == Result::OK) {
+        HidlUtils::convertPropertiesFromHal(properties, &halProperties);
+    }
+    return HidlUtils::convertHalResult(halResult);
+}
+
+int RadioHalHidl::openTuner(const radio_hal_band_config_t *config,
+                            bool audio,
+                            sp<TunerCallbackInterface> callback,
+                            sp<TunerInterface>& tuner)
+{
+    sp<IBroadcastRadio> module = getService();
+    if (module == 0) {
+        return -ENODEV;
+    }
+    sp<Tuner> tunerImpl = new Tuner(callback, this);
+
+    BandConfig halConfig;
+    Result halResult = Result::NOT_INITIALIZED;
+    sp<ITuner> halTuner;
+
+    HidlUtils::convertBandConfigToHal(&halConfig, config);
+    Return<void> hidlReturn =
+            module->openTuner(halConfig, audio, tunerImpl,
+                              [&](Result result, const sp<ITuner>& tuner) {
+                    halResult = result;
+                    if (result == Result::OK) {
+                        halTuner = tuner;
+                    }
+                });
+
+    if (halResult == Result::OK) {
+        tunerImpl->setHalTuner(halTuner);
+        tuner = tunerImpl;
+    }
+
+    return HidlUtils::convertHalResult(halResult);
+}
+
+int RadioHalHidl::closeTuner(sp<TunerInterface>& tuner)
+{
+    sp<Tuner> tunerImpl = static_cast<Tuner *>(tuner.get());
+    sp<ITuner> clearTuner;
+    tunerImpl->setHalTuner(clearTuner);
+    return 0;
+}
+
+RadioHalHidl::RadioHalHidl(radio_class_t classId)
+    : mClassId(classId)
+{
+}
+
+RadioHalHidl::~RadioHalHidl()
+{
+}
+
+sp<IBroadcastRadio> RadioHalHidl::getService()
+{
+    if (mHalModule == 0) {
+        sp<IBroadcastRadioFactory> factory = IBroadcastRadioFactory::getService();
+        if (factory != 0) {
+            factory->connectModule(static_cast<Class>(mClassId),
+                               [&](Result retval, const ::android::sp<IBroadcastRadio>& result) {
+                if (retval == Result::OK) {
+                    mHalModule = result;
+                }
+            });
+        }
+    }
+    ALOGV("%s OUT module %p", __FUNCTION__, mHalModule.get());
+    return mHalModule;
+}
+
+void RadioHalHidl::clearService()
+{
+    ALOGV("%s IN module %p", __FUNCTION__, mHalModule.get());
+    mHalModule.clear();
+}
+
+
+int RadioHalHidl::Tuner::setConfiguration(const radio_hal_band_config_t *config)
+{
+    ALOGV("%s IN mHalTuner %p", __FUNCTION__, mHalTuner.get());
+
+    if (mHalTuner == 0) {
+        return -ENODEV;
+    }
+    BandConfig halConfig;
+    HidlUtils::convertBandConfigToHal(&halConfig, config);
+
+    Return<Result> hidlResult = mHalTuner->setConfiguration(halConfig);
+    return HidlUtils::convertHalResult(hidlResult);
+}
+
+int RadioHalHidl::Tuner::getConfiguration(radio_hal_band_config_t *config)
+{
+    ALOGV("%s IN mHalTuner %p", __FUNCTION__, mHalTuner.get());
+    if (mHalTuner == 0) {
+        return -ENODEV;
+    }
+    BandConfig halConfig;
+    Result halResult;
+    Return<void> hidlReturn =
+            mHalTuner->getConfiguration([&](Result result, const BandConfig& config) {
+                    halResult = result;
+                    if (result == Result::OK) {
+                        halConfig = config;
+                    }
+                });
+    if (hidlReturn.isOk() && halResult == Result::OK) {
+        HidlUtils::convertBandConfigFromHal(config, &halConfig);
+    }
+    return HidlUtils::convertHalResult(halResult);
+}
+
+int RadioHalHidl::Tuner::scan(radio_direction_t direction, bool skip_sub_channel)
+{
+    ALOGV("%s IN mHalTuner %p", __FUNCTION__, mHalTuner.get());
+    if (mHalTuner == 0) {
+        return -ENODEV;
+    }
+    Return<Result> hidlResult =
+            mHalTuner->scan(static_cast<Direction>(direction), skip_sub_channel);
+    return HidlUtils::convertHalResult(hidlResult);
+}
+
+int RadioHalHidl::Tuner::step(radio_direction_t direction, bool skip_sub_channel)
+{
+    ALOGV("%s IN mHalTuner %p", __FUNCTION__, mHalTuner.get());
+    if (mHalTuner == 0) {
+        return -ENODEV;
+    }
+    Return<Result> hidlResult =
+            mHalTuner->step(static_cast<Direction>(direction), skip_sub_channel);
+    return HidlUtils::convertHalResult(hidlResult);
+}
+
+int RadioHalHidl::Tuner::tune(unsigned int channel, unsigned int sub_channel)
+{
+    ALOGV("%s IN mHalTuner %p", __FUNCTION__, mHalTuner.get());
+    if (mHalTuner == 0) {
+        return -ENODEV;
+    }
+    Return<Result> hidlResult =
+            mHalTuner->tune(channel, sub_channel);
+    return HidlUtils::convertHalResult(hidlResult);
+}
+
+int RadioHalHidl::Tuner::cancel()
+{
+    ALOGV("%s IN mHalTuner %p", __FUNCTION__, mHalTuner.get());
+    if (mHalTuner == 0) {
+        return -ENODEV;
+    }
+    Return<Result> hidlResult = mHalTuner->cancel();
+    return HidlUtils::convertHalResult(hidlResult);
+}
+
+int RadioHalHidl::Tuner::getProgramInformation(radio_program_info_t *info)
+{
+    ALOGV("%s IN mHalTuner %p", __FUNCTION__, mHalTuner.get());
+    if (mHalTuner == 0) {
+        return -ENODEV;
+    }
+    if (info == nullptr || info->metadata == nullptr) {
+        return BAD_VALUE;
+    }
+    ProgramInfo halInfo;
+    Result halResult;
+    Return<void> hidlReturn = mHalTuner->getProgramInformation(
+        [&](Result result, const ProgramInfo& info) {
+            halResult = result;
+            if (result == Result::OK) {
+                halInfo = info;
+            }
+        });
+    if (hidlReturn.isOk() && halResult == Result::OK) {
+        HidlUtils::convertProgramInfoFromHal(info, &halInfo);
+    }
+    return HidlUtils::convertHalResult(halResult);
+}
+
+Return<void> RadioHalHidl::Tuner::hardwareFailure()
+{
+    ALOGV("%s IN", __FUNCTION__);
+    handleHwFailure();
+    return Return<void>();
+}
+
+Return<void> RadioHalHidl::Tuner::configChange(Result result, const BandConfig& config)
+{
+    ALOGV("%s IN", __FUNCTION__);
+    radio_hal_event_t event;
+    memset(&event, 0, sizeof(radio_hal_event_t));
+    event.type = RADIO_EVENT_CONFIG;
+    event.status = HidlUtils::convertHalResult(result);
+    HidlUtils::convertBandConfigFromHal(&event.config, &config);
+    onCallback(&event);
+    return Return<void>();
+}
+
+Return<void> RadioHalHidl::Tuner::tuneComplete(Result result, const ProgramInfo& info)
+{
+    ALOGV("%s IN", __FUNCTION__);
+    radio_hal_event_t event = {};
+    RadioMetadataWrapper metadataWrapper(&event.info.metadata);
+
+    event.type = RADIO_EVENT_TUNED;
+    event.status = HidlUtils::convertHalResult(result);
+    HidlUtils::convertProgramInfoFromHal(&event.info, &info);
+    onCallback(&event);
+    return Return<void>();
+}
+
+Return<void> RadioHalHidl::Tuner::afSwitch(const ProgramInfo& info)
+{
+    ALOGV("%s IN", __FUNCTION__);
+    radio_hal_event_t event = {};
+    RadioMetadataWrapper metadataWrapper(&event.info.metadata);
+
+    event.type = RADIO_EVENT_AF_SWITCH;
+    HidlUtils::convertProgramInfoFromHal(&event.info, &info);
+    onCallback(&event);
+    return Return<void>();
+}
+
+Return<void> RadioHalHidl::Tuner::antennaStateChange(bool connected)
+{
+    ALOGV("%s IN", __FUNCTION__);
+    radio_hal_event_t event;
+    memset(&event, 0, sizeof(radio_hal_event_t));
+    event.type = RADIO_EVENT_ANTENNA;
+    event.on = connected;
+    onCallback(&event);
+    return Return<void>();
+}
+Return<void> RadioHalHidl::Tuner::trafficAnnouncement(bool active)
+{
+    ALOGV("%s IN", __FUNCTION__);
+    radio_hal_event_t event;
+    memset(&event, 0, sizeof(radio_hal_event_t));
+    event.type = RADIO_EVENT_TA;
+    event.on = active;
+    onCallback(&event);
+    return Return<void>();
+}
+Return<void> RadioHalHidl::Tuner::emergencyAnnouncement(bool active)
+{
+    ALOGV("%s IN", __FUNCTION__);
+    radio_hal_event_t event;
+    memset(&event, 0, sizeof(radio_hal_event_t));
+    event.type = RADIO_EVENT_EA;
+    event.on = active;
+    onCallback(&event);
+    return Return<void>();
+}
+Return<void> RadioHalHidl::Tuner::newMetadata(uint32_t channel, uint32_t subChannel,
+                                          const ::android::hardware::hidl_vec<MetaData>& metadata)
+{
+    ALOGV("%s IN", __FUNCTION__);
+    radio_hal_event_t event = {};
+    RadioMetadataWrapper metadataWrapper(&event.info.metadata);
+
+    event.type = RADIO_EVENT_METADATA;
+    HidlUtils::convertMetaDataFromHal(&event.metadata, metadata, channel, subChannel);
+    onCallback(&event);
+    return Return<void>();
+}
+
+
+RadioHalHidl::Tuner::Tuner(sp<TunerCallbackInterface> callback, sp<RadioHalHidl> module)
+    : TunerInterface(), mHalTuner(NULL), mCallback(callback), mParentModule(module)
+{
+    // Make sure the handler we are passing in only deals with const members,
+    // as it can be called on an arbitrary thread.
+    const auto& self = this;
+    HalDeathHandler::getInstance()->registerAtExitHandler(
+            this, [&self]() { self->sendHwFailureEvent(); });
+}
+
+
+RadioHalHidl::Tuner::~Tuner()
+{
+    HalDeathHandler::getInstance()->unregisterAtExitHandler(this);
+}
+
+void RadioHalHidl::Tuner::setHalTuner(sp<ITuner>& halTuner) {
+    if (mHalTuner != 0) {
+        mHalTuner->unlinkToDeath(HalDeathHandler::getInstance());
+    }
+    mHalTuner = halTuner;
+    if (mHalTuner != 0) {
+        mHalTuner->linkToDeath(HalDeathHandler::getInstance(), 0 /*cookie*/);
+    }
+}
+
+void RadioHalHidl::Tuner::handleHwFailure()
+{
+    ALOGV("%s IN", __FUNCTION__);
+    sp<RadioHalHidl> parentModule = mParentModule.promote();
+    if (parentModule != 0) {
+        parentModule->clearService();
+    }
+    sendHwFailureEvent();
+    mHalTuner.clear();
+}
+
+void RadioHalHidl::Tuner::sendHwFailureEvent() const
+{
+    radio_hal_event_t event;
+    memset(&event, 0, sizeof(radio_hal_event_t));
+    event.type = RADIO_EVENT_HW_FAILURE;
+    onCallback(&event);
+}
+
+void RadioHalHidl::Tuner::onCallback(radio_hal_event_t *halEvent) const
+{
+    if (mCallback != 0) {
+        mCallback->onEvent(halEvent);
+    }
+}
+
+} // namespace android
diff --git a/services/radio/RadioHalHidl.h b/services/radio/RadioHalHidl.h
new file mode 100644
index 0000000..f98420d
--- /dev/null
+++ b/services/radio/RadioHalHidl.h
@@ -0,0 +1,107 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_RADIO_HAL_HIDL_H
+#define ANDROID_HARDWARE_RADIO_HAL_HIDL_H
+
+#include <utils/RefBase.h>
+#include <utils/threads.h>
+#include "RadioInterface.h"
+#include "TunerInterface.h"
+#include "TunerCallbackInterface.h"
+#include <android/hardware/broadcastradio/1.0/types.h>
+#include <android/hardware/broadcastradio/1.0/IBroadcastRadio.h>
+#include <android/hardware/broadcastradio/1.0/ITuner.h>
+#include <android/hardware/broadcastradio/1.0/ITunerCallback.h>
+
+namespace android {
+
+using android::hardware::Return;
+using android::hardware::broadcastradio::V1_0::Result;
+using android::hardware::broadcastradio::V1_0::IBroadcastRadio;
+using android::hardware::broadcastradio::V1_0::ITuner;
+using android::hardware::broadcastradio::V1_0::ITunerCallback;
+
+using android::hardware::broadcastradio::V1_0::BandConfig;
+using android::hardware::broadcastradio::V1_0::ProgramInfo;
+using android::hardware::broadcastradio::V1_0::MetaData;
+
+class RadioHalHidl : public RadioInterface
+{
+public:
+                    RadioHalHidl(radio_class_t classId);
+
+                    // RadioInterface
+        virtual int getProperties(radio_hal_properties_t *properties);
+        virtual int openTuner(const radio_hal_band_config_t *config,
+                              bool audio,
+                              sp<TunerCallbackInterface> callback,
+                              sp<TunerInterface>& tuner);
+        virtual int closeTuner(sp<TunerInterface>& tuner);
+
+        class Tuner  : public TunerInterface, public virtual ITunerCallback
+        {
+        public:
+                        Tuner(sp<TunerCallbackInterface> callback, sp<RadioHalHidl> module);
+
+                        // TunerInterface
+            virtual int setConfiguration(const radio_hal_band_config_t *config);
+            virtual int getConfiguration(radio_hal_band_config_t *config);
+            virtual int scan(radio_direction_t direction, bool skip_sub_channel);
+            virtual int step(radio_direction_t direction, bool skip_sub_channel);
+            virtual int tune(unsigned int channel, unsigned int sub_channel);
+            virtual int cancel();
+            virtual int getProgramInformation(radio_program_info_t *info);
+
+                        // ITunerCallback
+            virtual Return<void> hardwareFailure();
+            virtual Return<void> configChange(Result result, const BandConfig& config);
+            virtual Return<void> tuneComplete(Result result, const ProgramInfo& info);
+            virtual Return<void> afSwitch(const ProgramInfo& info);
+            virtual Return<void> antennaStateChange(bool connected);
+            virtual Return<void> trafficAnnouncement(bool active);
+            virtual Return<void> emergencyAnnouncement(bool active);
+            virtual Return<void> newMetadata(uint32_t channel, uint32_t subChannel,
+                                         const ::android::hardware::hidl_vec<MetaData>& metadata);
+
+            void setHalTuner(sp<ITuner>& halTuner);
+            sp<ITuner> getHalTuner() { return mHalTuner; }
+
+        private:
+            virtual          ~Tuner();
+
+                    void     onCallback(radio_hal_event_t *halEvent) const;
+                    void     handleHwFailure();
+                    void     sendHwFailureEvent() const;
+
+            sp<ITuner> mHalTuner;
+            const sp<TunerCallbackInterface> mCallback;
+            wp<RadioHalHidl> mParentModule;
+        };
+
+        sp<IBroadcastRadio> getService();
+        void clearService();
+
+private:
+        virtual         ~RadioHalHidl();
+
+                radio_class_t mClassId;
+                sp<IBroadcastRadio> mHalModule;
+};
+
+} // namespace android
+
+#endif // ANDROID_HARDWARE_RADIO_HAL_HIDL_H
diff --git a/services/radio/RadioHalLegacy.cpp b/services/radio/RadioHalLegacy.cpp
new file mode 100644
index 0000000..d50ccd4
--- /dev/null
+++ b/services/radio/RadioHalLegacy.cpp
@@ -0,0 +1,218 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "RadioHalLegacy"
+//#define LOG_NDEBUG 0
+
+#include <utils/Log.h>
+#include <utils/misc.h>
+#include "RadioHalLegacy.h"
+
+namespace android {
+
+const char *RadioHalLegacy::sClassModuleNames[] = {
+    RADIO_HARDWARE_MODULE_ID_FM, /* corresponds to RADIO_CLASS_AM_FM */
+    RADIO_HARDWARE_MODULE_ID_SAT,  /* corresponds to RADIO_CLASS_SAT */
+    RADIO_HARDWARE_MODULE_ID_DT,   /* corresponds to RADIO_CLASS_DT */
+};
+
+/* static */
+sp<RadioInterface> RadioInterface::connectModule(radio_class_t classId)
+{
+    return new RadioHalLegacy(classId);
+}
+
+RadioHalLegacy::RadioHalLegacy(radio_class_t classId)
+    : RadioInterface(), mClassId(classId), mHwDevice(NULL)
+{
+}
+
+void RadioHalLegacy::onFirstRef()
+{
+    const hw_module_t *mod;
+    int rc;
+    ALOGI("%s mClassId %d", __FUNCTION__, mClassId);
+
+    mHwDevice = NULL;
+
+    if ((mClassId < 0) ||
+            (mClassId >= NELEM(sClassModuleNames))) {
+        ALOGE("invalid class ID %d", mClassId);
+        return;
+    }
+
+    ALOGI("%s RADIO_HARDWARE_MODULE_ID %s %s",
+          __FUNCTION__, RADIO_HARDWARE_MODULE_ID, sClassModuleNames[mClassId]);
+
+    rc = hw_get_module_by_class(RADIO_HARDWARE_MODULE_ID, sClassModuleNames[mClassId], &mod);
+    if (rc != 0) {
+        ALOGE("couldn't load radio module %s.%s (%s)",
+              RADIO_HARDWARE_MODULE_ID, sClassModuleNames[mClassId], strerror(-rc));
+        return;
+    }
+    rc = radio_hw_device_open(mod, &mHwDevice);
+    if (rc != 0) {
+        ALOGE("couldn't open radio hw device in %s.%s (%s)",
+              RADIO_HARDWARE_MODULE_ID, "primary", strerror(-rc));
+        mHwDevice = NULL;
+        return;
+    }
+    if (mHwDevice->common.version != RADIO_DEVICE_API_VERSION_CURRENT) {
+        ALOGE("wrong radio hw device version %04x", mHwDevice->common.version);
+        radio_hw_device_close(mHwDevice);
+        mHwDevice = NULL;
+    }
+}
+
+RadioHalLegacy::~RadioHalLegacy()
+{
+    if (mHwDevice != NULL) {
+        radio_hw_device_close(mHwDevice);
+    }
+}
+
+int RadioHalLegacy::getProperties(radio_hal_properties_t *properties)
+{
+    if (mHwDevice == NULL) {
+        return -ENODEV;
+    }
+
+    int rc = mHwDevice->get_properties(mHwDevice, properties);
+    if (rc != 0) {
+        ALOGE("could not read implementation properties");
+    }
+
+    return rc;
+}
+
+int RadioHalLegacy::openTuner(const radio_hal_band_config_t *config,
+                bool audio,
+                sp<TunerCallbackInterface> callback,
+                sp<TunerInterface>& tuner)
+{
+    if (mHwDevice == NULL) {
+        return -ENODEV;
+    }
+    sp<Tuner> tunerImpl = new Tuner(callback);
+
+    const struct radio_tuner *halTuner;
+    int rc = mHwDevice->open_tuner(mHwDevice, config, audio,
+                                   RadioHalLegacy::Tuner::callback, tunerImpl.get(),
+                                   &halTuner);
+    if (rc == 0) {
+        tunerImpl->setHalTuner(halTuner);
+        tuner = tunerImpl;
+    }
+    return rc;
+}
+
+int RadioHalLegacy::closeTuner(sp<TunerInterface>& tuner)
+{
+    if (mHwDevice == NULL) {
+        return -ENODEV;
+    }
+    if (tuner == 0) {
+        return -EINVAL;
+    }
+    sp<Tuner> tunerImpl = (Tuner *)tuner.get();
+    return mHwDevice->close_tuner(mHwDevice, tunerImpl->getHalTuner());
+}
+
+int RadioHalLegacy::Tuner::setConfiguration(const radio_hal_band_config_t *config)
+{
+    if (mHalTuner == NULL) {
+        return -ENODEV;
+    }
+    return mHalTuner->set_configuration(mHalTuner, config);
+}
+
+int RadioHalLegacy::Tuner::getConfiguration(radio_hal_band_config_t *config)
+{
+    if (mHalTuner == NULL) {
+        return -ENODEV;
+    }
+    return mHalTuner->get_configuration(mHalTuner, config);
+}
+
+int RadioHalLegacy::Tuner::scan(radio_direction_t direction, bool skip_sub_channel)
+{
+    if (mHalTuner == NULL) {
+        return -ENODEV;
+    }
+    return mHalTuner->scan(mHalTuner, direction, skip_sub_channel);
+}
+
+int RadioHalLegacy::Tuner::step(radio_direction_t direction, bool skip_sub_channel)
+{
+    if (mHalTuner == NULL) {
+        return -ENODEV;
+    }
+    return mHalTuner->step(mHalTuner, direction, skip_sub_channel);
+}
+
+int RadioHalLegacy::Tuner::tune(unsigned int channel, unsigned int sub_channel)
+{
+    if (mHalTuner == NULL) {
+        return -ENODEV;
+    }
+    return mHalTuner->tune(mHalTuner, channel, sub_channel);
+}
+
+int RadioHalLegacy::Tuner::cancel()
+{
+    if (mHalTuner == NULL) {
+        return -ENODEV;
+    }
+    return mHalTuner->cancel(mHalTuner);
+}
+
+int RadioHalLegacy::Tuner::getProgramInformation(radio_program_info_t *info)
+{
+    if (mHalTuner == NULL) {
+        return -ENODEV;
+    }
+    return mHalTuner->get_program_information(mHalTuner, info);
+}
+
+void RadioHalLegacy::Tuner::onCallback(radio_hal_event_t *halEvent)
+{
+    if (mCallback != 0) {
+        mCallback->onEvent(halEvent);
+    }
+}
+
+//static
+void RadioHalLegacy::Tuner::callback(radio_hal_event_t *halEvent, void *cookie)
+{
+    wp<RadioHalLegacy::Tuner> weak = wp<RadioHalLegacy::Tuner>((RadioHalLegacy::Tuner *)cookie);
+    sp<RadioHalLegacy::Tuner> tuner = weak.promote();
+    if (tuner != 0) {
+        tuner->onCallback(halEvent);
+    }
+}
+
+RadioHalLegacy::Tuner::Tuner(sp<TunerCallbackInterface> callback)
+    : TunerInterface(), mHalTuner(NULL), mCallback(callback)
+{
+}
+
+
+RadioHalLegacy::Tuner::~Tuner()
+{
+}
+
+
+} // namespace android
diff --git a/services/radio/RadioHalLegacy.h b/services/radio/RadioHalLegacy.h
new file mode 100644
index 0000000..7d4831b
--- /dev/null
+++ b/services/radio/RadioHalLegacy.h
@@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_RADIO_HAL_LEGACY_H
+#define ANDROID_HARDWARE_RADIO_HAL_LEGACY_H
+
+#include <utils/RefBase.h>
+#include <hardware/radio.h>
+#include "RadioInterface.h"
+#include "TunerInterface.h"
+#include "TunerCallbackInterface.h"
+
+namespace android {
+
+class RadioHalLegacy : public RadioInterface
+{
+public:
+        RadioHalLegacy(radio_class_t classId);
+
+        // RadioInterface
+        virtual int getProperties(radio_hal_properties_t *properties);
+        virtual int openTuner(const radio_hal_band_config_t *config,
+                        bool audio,
+                        sp<TunerCallbackInterface> callback,
+                        sp<TunerInterface>& tuner);
+        virtual int closeTuner(sp<TunerInterface>& tuner);
+
+        // RefBase
+        virtual void onFirstRef();
+
+        class Tuner  : public TunerInterface
+        {
+        public:
+                        Tuner(sp<TunerCallbackInterface> callback);
+
+            virtual int setConfiguration(const radio_hal_band_config_t *config);
+            virtual int getConfiguration(radio_hal_band_config_t *config);
+            virtual int scan(radio_direction_t direction, bool skip_sub_channel);
+            virtual int step(radio_direction_t direction, bool skip_sub_channel);
+            virtual int tune(unsigned int channel, unsigned int sub_channel);
+            virtual int cancel();
+            virtual int getProgramInformation(radio_program_info_t *info);
+
+            static void callback(radio_hal_event_t *halEvent, void *cookie);
+                   void onCallback(radio_hal_event_t *halEvent);
+
+            void setHalTuner(const struct radio_tuner *halTuner) { mHalTuner = halTuner; }
+            const struct radio_tuner *getHalTuner() { return mHalTuner; }
+
+        private:
+            virtual      ~Tuner();
+
+            const struct radio_tuner    *mHalTuner;
+            sp<TunerCallbackInterface>  mCallback;
+        };
+
+protected:
+        virtual     ~RadioHalLegacy();
+
+private:
+        static const char * sClassModuleNames[];
+
+        radio_class_t mClassId;
+        struct radio_hw_device  *mHwDevice;
+};
+
+} // namespace android
+
+#endif // ANDROID_HARDWARE_RADIO_HAL_LEGACY_H
diff --git a/services/radio/RadioInterface.h b/services/radio/RadioInterface.h
new file mode 100644
index 0000000..fcfb4d5
--- /dev/null
+++ b/services/radio/RadioInterface.h
@@ -0,0 +1,91 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_RADIO_INTERFACE_H
+#define ANDROID_HARDWARE_RADIO_INTERFACE_H
+
+#include <utils/RefBase.h>
+#include <system/radio.h>
+#include "TunerInterface.h"
+#include "TunerCallbackInterface.h"
+
+namespace android {
+
+class RadioInterface : public virtual RefBase
+{
+public:
+        /* get a sound trigger HAL instance */
+        static sp<RadioInterface> connectModule(radio_class_t classId);
+
+        /*
+         * Retrieve implementation properties.
+         *
+         * arguments:
+         * - properties: where to return the module properties
+         *
+         * returns:
+         *  0 if no error
+         *  -EINVAL if invalid arguments are passed
+         */
+        virtual int getProperties(radio_hal_properties_t *properties) = 0;
+
+        /*
+         * Open a tuner interface for the requested configuration.
+         * If no other tuner is opened, this will activate the radio module.
+         *
+         * arguments:
+         * - config: the band configuration to apply
+         * - audio: this tuner will be used for live radio listening and should be connected to
+         * the radio audio source.
+         * - callback: the event callback
+         * - cookie: the cookie to pass when calling the callback
+         * - tuner: where to return the tuner interface
+         *
+         * returns:
+         *  0 if HW was powered up and configuration could be applied
+         *  -EINVAL if configuration requested is invalid
+         *  -ENOSYS if called out of sequence
+         *
+         * Callback function with event RADIO_EVENT_CONFIG MUST be called once the
+         * configuration is applied or a failure occurs or after a time out.
+         */
+        virtual int openTuner(const radio_hal_band_config_t *config,
+                        bool audio,
+                        sp<TunerCallbackInterface> callback,
+                        sp<TunerInterface>& tuner) = 0;
+
+        /*
+         * Close a tuner interface.
+         * If the last tuner is closed, the radio module is deactivated.
+         *
+         * arguments:
+         * - tuner: the tuner interface to close
+         *
+         * returns:
+         *  0 if powered down successfully.
+         *  -EINVAL if an invalid argument is passed
+         *  -ENOSYS if called out of sequence
+         */
+        virtual int closeTuner(sp<TunerInterface>& tuner) = 0;
+
+protected:
+        RadioInterface() {}
+        virtual     ~RadioInterface() {}
+};
+
+} // namespace android
+
+#endif // ANDROID_HARDWARE_RADIO_INTERFACE_H
diff --git a/services/radio/RadioService.cpp b/services/radio/RadioService.cpp
index 3448678..f7a73c3 100644
--- a/services/radio/RadioService.cpp
+++ b/services/radio/RadioService.cpp
@@ -51,31 +51,15 @@
 
 void RadioService::onFirstRef()
 {
-    const hw_module_t *mod;
-    int rc;
-    struct radio_hw_device *dev;
-
     ALOGI("%s", __FUNCTION__);
 
-    rc = hw_get_module_by_class(RADIO_HARDWARE_MODULE_ID, RADIO_HARDWARE_MODULE_ID_FM, &mod);
-    if (rc != 0) {
-        ALOGE("couldn't load radio module %s.%s (%s)",
-              RADIO_HARDWARE_MODULE_ID, "primary", strerror(-rc));
-        return;
-    }
-    rc = radio_hw_device_open(mod, &dev);
-    if (rc != 0) {
-        ALOGE("couldn't open radio hw device in %s.%s (%s)",
-              RADIO_HARDWARE_MODULE_ID, "primary", strerror(-rc));
-        return;
-    }
-    if (dev->common.version != RADIO_DEVICE_API_VERSION_CURRENT) {
-        ALOGE("wrong radio hw device version %04x", dev->common.version);
-        return;
-    }
+    sp<RadioInterface> dev = RadioInterface::connectModule(RADIO_CLASS_AM_FM);
 
+    if (dev == 0) {
+        return;
+    }
     struct radio_hal_properties halProperties;
-    rc = dev->get_properties(dev, &halProperties);
+    int rc = dev->getProperties(&halProperties);
     if (rc != 0) {
         ALOGE("could not read implementation properties");
         return;
@@ -95,9 +79,6 @@
 
 RadioService::~RadioService()
 {
-    for (size_t i = 0; i < mModules.size(); i++) {
-        radio_hw_device_close(mModules.valueAt(i)->hwDevice());
-    }
 }
 
 status_t RadioService::listModules(struct radio_properties *properties,
@@ -109,7 +90,7 @@
     if (numModules == NULL || (*numModules != 0 && properties == NULL)) {
         return BAD_VALUE;
     }
-    size_t maxModules = *numModules;
+    uint32_t maxModules = *numModules;
     *numModules = mModules.size();
     for (size_t i = 0; i < mModules.size() && i < maxModules; i++) {
         properties[i] = mModules.valueAt(i)->properties();
@@ -193,16 +174,6 @@
 }
 
 
-// static
-void RadioService::callback(radio_hal_event_t *halEvent, void *cookie)
-{
-    CallbackThread *callbackThread = (CallbackThread *)cookie;
-    if (callbackThread == NULL) {
-        return;
-    }
-    callbackThread->sendEvent(halEvent);
-}
-
 /* static */
 void RadioService::convertProperties(radio_properties_t *properties,
                                      const radio_hal_properties_t *halProperties)
@@ -306,32 +277,40 @@
 {
     sp<IMemory> eventMemory;
 
-    size_t headerSize =
-            (sizeof(struct radio_event) + sizeof(unsigned int) - 1) /sizeof(unsigned int);
-    size_t metadataSize = 0;
+    // The event layout in shared memory is:
+    // sizeof(struct radio_event) bytes : the event itself
+    // 4 bytes                          : metadata size or 0
+    // N bytes                          : metadata if present
+    uint32_t metadataOffset = sizeof(struct radio_event) + sizeof(uint32_t);
+    uint32_t metadataSize = 0;
+
     switch (halEvent->type) {
     case RADIO_EVENT_TUNED:
     case RADIO_EVENT_AF_SWITCH:
         if (radio_metadata_check(halEvent->info.metadata) == 0) {
-            metadataSize = radio_metadata_get_size(halEvent->info.metadata);
+            metadataSize = (uint32_t)radio_metadata_get_size(halEvent->info.metadata);
         }
         break;
     case RADIO_EVENT_METADATA:
         if (radio_metadata_check(halEvent->metadata) != 0) {
             return eventMemory;
         }
-        metadataSize = radio_metadata_get_size(halEvent->metadata);
+        metadataSize = (uint32_t)radio_metadata_get_size(halEvent->metadata);
         break;
     default:
         break;
     }
-    size_t size = headerSize + metadataSize;
-    eventMemory = mMemoryDealer->allocate(size);
+
+    eventMemory = mMemoryDealer->allocate(metadataOffset + metadataSize);
     if (eventMemory == 0 || eventMemory->pointer() == NULL) {
         eventMemory.clear();
         return eventMemory;
     }
+
     struct radio_event *event = (struct radio_event *)eventMemory->pointer();
+
+    *(uint32_t *)((uint8_t *)event + metadataOffset - sizeof(uint32_t)) = metadataSize;
+
     event->type = halEvent->type;
     event->status = halEvent->status;
 
@@ -343,10 +322,7 @@
     case RADIO_EVENT_AF_SWITCH:
         event->info = halEvent->info;
         if (metadataSize != 0) {
-            memcpy((char *)event + headerSize, halEvent->info.metadata, metadataSize);
-            // replace meta data pointer by offset while in shared memory so that receiving side
-            // can restore the pointer in destination process.
-            event->info.metadata = (radio_metadata_t *)headerSize;
+            memcpy((uint8_t *)event + metadataOffset, halEvent->info.metadata, metadataSize);
         }
         break;
     case RADIO_EVENT_TA:
@@ -356,10 +332,9 @@
         event->on = halEvent->on;
         break;
     case RADIO_EVENT_METADATA:
-        memcpy((char *)event + headerSize, halEvent->metadata, metadataSize);
-        // replace meta data pointer by offset while in shared memory so that receiving side
-        // can restore the pointer in destination process.
-        event->metadata = (radio_metadata_t *)headerSize;
+        if (metadataSize != 0) {
+            memcpy((uint8_t *)event + metadataOffset, halEvent->metadata, metadataSize);
+        }
         break;
     case RADIO_EVENT_HW_FAILURE:
     default:
@@ -386,12 +361,13 @@
 #undef LOG_TAG
 #define LOG_TAG "RadioService::Module"
 
-RadioService::Module::Module(radio_hw_device* hwDevice, radio_properties properties)
+RadioService::Module::Module(sp<RadioInterface> hwDevice, radio_properties properties)
  : mHwDevice(hwDevice), mProperties(properties), mMute(true)
 {
 }
 
 RadioService::Module::~Module() {
+    mHwDevice.clear();
     mModuleClients.clear();
 }
 
@@ -405,10 +381,15 @@
                                     bool audio)
 {
     ALOGV("addClient() %p config %p product %s", this, config, mProperties.product);
+
     AutoMutex lock(mLock);
     sp<ModuleClient> moduleClient;
     int ret;
 
+    if (mHwDevice == 0) {
+        return moduleClient;
+    }
+
     for (size_t i = 0; i < mModuleClients.size(); i++) {
         if (mModuleClients[i]->client() == client) {
             // client already connected: reject
@@ -465,7 +446,7 @@
         }
     }
 
-    const struct radio_tuner *halTuner;
+    sp<TunerInterface> halTuner;
     sp<ModuleClient> preemtedClient;
     if (audio) {
         if (allocatedAudio >= mProperties.num_audio_sources) {
@@ -485,18 +466,19 @@
     }
     if (preemtedClient != 0) {
         halTuner = preemtedClient->getTuner();
-        preemtedClient->setTuner(NULL);
-        mHwDevice->close_tuner(mHwDevice, halTuner);
+        sp<TunerInterface> clear;
+        preemtedClient->setTuner(clear);
+        mHwDevice->closeTuner(halTuner);
         if (preemtedClient->audio()) {
             notifyDeviceConnection(false, "");
         }
     }
 
-    ret = mHwDevice->open_tuner(mHwDevice, &halConfig, audio,
-                                RadioService::callback, moduleClient->callbackThread().get(),
-                                &halTuner);
+    ret = mHwDevice->openTuner(&halConfig, audio,
+                               moduleClient,
+                               halTuner);
     if (ret == 0) {
-        ALOGV("addClient() setTuner %p", halTuner);
+        ALOGV("addClient() setTuner %p", halTuner.get());
         moduleClient->setTuner(halTuner);
         mModuleClients.add(moduleClient);
         if (audio) {
@@ -528,12 +510,15 @@
     }
 
     mModuleClients.removeAt(index);
-    const struct radio_tuner *halTuner = moduleClient->getTuner();
+    sp<TunerInterface> halTuner = moduleClient->getTuner();
     if (halTuner == NULL) {
         return;
     }
 
-    mHwDevice->close_tuner(mHwDevice, halTuner);
+    if (mHwDevice != 0) {
+        mHwDevice->closeTuner(halTuner);
+    }
+
     if (moduleClient->audio()) {
         notifyDeviceConnection(false, "");
     }
@@ -544,6 +529,10 @@
         return;
     }
 
+    if (mHwDevice == 0) {
+        return;
+    }
+
     // Tuner reallocation logic:
     // When a client is removed and was controlling a tuner, this tuner will be allocated to a
     // previously preempted client. This client will be notified by a callback with
@@ -592,9 +581,9 @@
     ALOG_ASSERT(youngestClient != 0, "removeClient() removed client no candidate found for tuner");
 
     struct radio_hal_band_config halConfig = youngestClient->halConfig();
-    ret = mHwDevice->open_tuner(mHwDevice, &halConfig, youngestClient->audio(),
-                                RadioService::callback, moduleClient->callbackThread().get(),
-                                &halTuner);
+    ret = mHwDevice->openTuner(&halConfig, youngestClient->audio(),
+                                moduleClient,
+                                halTuner);
 
     if (ret == 0) {
         youngestClient->setTuner(halTuner);
@@ -647,7 +636,7 @@
                                          const sp<IRadioClient>& client,
                                          const struct radio_band_config *config,
                                          bool audio)
- : mModule(module), mClient(client), mConfig(*config), mAudio(audio), mTuner(NULL)
+ : mModule(module), mClient(client), mConfig(*config), mAudio(audio), mTuner(0)
 {
 }
 
@@ -667,6 +656,11 @@
     }
 }
 
+void RadioService::ModuleClient::onEvent(radio_hal_event_t *halEvent)
+{
+    mCallbackThread->sendEvent(halEvent);
+}
+
 status_t RadioService::ModuleClient::dump(int fd __unused,
                                              const Vector<String16>& args __unused) {
     String8 result;
@@ -697,14 +691,14 @@
     return mConfig.band;
 }
 
-const struct radio_tuner *RadioService::ModuleClient::getTuner() const
+sp<TunerInterface>& RadioService::ModuleClient::getTuner()
 {
     AutoMutex lock(mLock);
     ALOGV("%s locked", __FUNCTION__);
     return mTuner;
 }
 
-void RadioService::ModuleClient::setTuner(const struct radio_tuner *tuner)
+void RadioService::ModuleClient::setTuner(sp<TunerInterface>& tuner)
 {
     ALOGV("%s %p", __FUNCTION__, this);
 
@@ -715,7 +709,7 @@
     radio_hal_event_t event;
     event.type = RADIO_EVENT_CONTROL;
     event.status = 0;
-    event.on = mTuner != NULL;
+    event.on = mTuner != 0;
     mCallbackThread->sendEvent(&event);
     ALOGV("%s DONE", __FUNCTION__);
 
@@ -727,10 +721,10 @@
     status_t status = NO_ERROR;
     ALOGV("%s locked", __FUNCTION__);
 
-    if (mTuner != NULL) {
+    if (mTuner != 0) {
         struct radio_hal_band_config halConfig;
         halConfig = config->band;
-        status = (status_t)mTuner->set_configuration(mTuner, &halConfig);
+        status = (status_t)mTuner->setConfiguration(&halConfig);
         if (status == NO_ERROR) {
             mConfig = *config;
         }
@@ -748,9 +742,9 @@
     status_t status = NO_ERROR;
     ALOGV("%s locked", __FUNCTION__);
 
-    if (mTuner != NULL) {
+    if (mTuner != 0) {
         struct radio_hal_band_config halConfig;
-        status = (status_t)mTuner->get_configuration(mTuner, &halConfig);
+        status = (status_t)mTuner->getConfiguration(&halConfig);
         if (status == NO_ERROR) {
             mConfig.band = halConfig;
         }
@@ -766,7 +760,7 @@
     {
         Mutex::Autolock _l(mLock);
         ALOGV("%s locked", __FUNCTION__);
-        if (mTuner == NULL || !mAudio) {
+        if (mTuner == 0 || !mAudio) {
             return INVALID_OPERATION;
         }
         module = mModule.promote();
@@ -797,8 +791,8 @@
     AutoMutex lock(mLock);
     ALOGV("%s locked", __FUNCTION__);
     status_t status;
-    if (mTuner != NULL) {
-        status = (status_t)mTuner->scan(mTuner, direction, skipSubChannel);
+    if (mTuner != 0) {
+        status = (status_t)mTuner->scan(direction, skipSubChannel);
     } else {
         status = INVALID_OPERATION;
     }
@@ -810,21 +804,21 @@
     AutoMutex lock(mLock);
     ALOGV("%s locked", __FUNCTION__);
     status_t status;
-    if (mTuner != NULL) {
-        status = (status_t)mTuner->step(mTuner, direction, skipSubChannel);
+    if (mTuner != 0) {
+        status = (status_t)mTuner->step(direction, skipSubChannel);
     } else {
         status = INVALID_OPERATION;
     }
     return status;
 }
 
-status_t RadioService::ModuleClient::tune(unsigned int channel, unsigned int subChannel)
+status_t RadioService::ModuleClient::tune(uint32_t channel, uint32_t subChannel)
 {
     AutoMutex lock(mLock);
     ALOGV("%s locked", __FUNCTION__);
     status_t status;
-    if (mTuner != NULL) {
-        status = (status_t)mTuner->tune(mTuner, channel, subChannel);
+    if (mTuner != 0) {
+        status = (status_t)mTuner->tune(channel, subChannel);
     } else {
         status = INVALID_OPERATION;
     }
@@ -836,8 +830,8 @@
     AutoMutex lock(mLock);
     ALOGV("%s locked", __FUNCTION__);
     status_t status;
-    if (mTuner != NULL) {
-        status = (status_t)mTuner->cancel(mTuner);
+    if (mTuner != 0) {
+        status = (status_t)mTuner->cancel();
     } else {
         status = INVALID_OPERATION;
     }
@@ -850,10 +844,11 @@
     ALOGV("%s locked", __FUNCTION__);
     status_t status;
     if (mTuner != NULL) {
-        status = (status_t)mTuner->get_program_information(mTuner, info);
+        status = (status_t)mTuner->getProgramInformation(info);
     } else {
         status = INVALID_OPERATION;
     }
+
     return status;
 }
 
@@ -861,7 +856,7 @@
 {
     Mutex::Autolock lock(mLock);
     ALOGV("%s locked", __FUNCTION__);
-    *hasControl = mTuner != NULL;
+    *hasControl = mTuner != 0;
     return NO_ERROR;
 }
 
diff --git a/services/radio/RadioService.h b/services/radio/RadioService.h
index ac3481e..444eb7a 100644
--- a/services/radio/RadioService.h
+++ b/services/radio/RadioService.h
@@ -27,6 +27,9 @@
 #include <radio/IRadioClient.h>
 #include <system/radio.h>
 #include <hardware/radio.h>
+#include "RadioInterface.h"
+#include "TunerInterface.h"
+#include "TunerCallbackInterface.h"
 
 namespace android {
 
@@ -66,7 +69,7 @@
     class Module : public virtual RefBase {
     public:
 
-       Module(radio_hw_device* hwDevice,
+       Module(sp<RadioInterface> hwDevice,
               struct radio_properties properties);
 
        virtual ~Module();
@@ -83,7 +86,7 @@
 
        virtual status_t dump(int fd, const Vector<String16>& args);
 
-       const struct radio_hw_device *hwDevice() const { return mHwDevice; }
+       sp<RadioInterface> hwDevice() const { return mHwDevice; }
        const struct radio_properties properties() const { return mProperties; }
        const struct radio_band_config *getDefaultConfig() const ;
 
@@ -92,7 +95,7 @@
        void notifyDeviceConnection(bool connected, const char *address);
 
         Mutex                         mLock;          // protects  mModuleClients
-        const struct radio_hw_device  *mHwDevice;     // HAL hardware device
+        sp<RadioInterface>            mHwDevice;      // HAL hardware device
         const struct radio_properties mProperties;    // cached hardware module properties
         Vector< sp<ModuleClient> >    mModuleClients; // list of attached clients
         bool                          mMute;          // radio audio source state
@@ -128,7 +131,8 @@
     }; // class CallbackThread
 
     class ModuleClient : public BnRadio,
-                   public IBinder::DeathRecipient {
+                   public IBinder::DeathRecipient,
+                   public TunerCallbackInterface {
     public:
 
        ModuleClient(const sp<Module>& module,
@@ -167,8 +171,8 @@
                wp<Module> module() const { return mModule; }
                radio_hal_band_config_t halConfig() const;
                sp<CallbackThread> callbackThread() const { return mCallbackThread; }
-               void setTuner(const struct radio_tuner *tuner);
-               const struct radio_tuner *getTuner() const;
+               void setTuner(sp<TunerInterface>& tuner);
+               sp<TunerInterface>& getTuner();
                bool audio() const { return mAudio; }
 
                void onCallbackEvent(const sp<IMemory>& event);
@@ -179,6 +183,9 @@
        // IBinder::DeathRecipient implementation
        virtual void        binderDied(const wp<IBinder> &who);
 
+       // TunerCallbackInterface
+       virtual void onEvent(radio_hal_event_t *event);
+
     private:
 
         mutable Mutex               mLock;           // protects mClient, mConfig and mTuner
@@ -187,7 +194,7 @@
         radio_band_config_t         mConfig;         // current band configuration
         sp<CallbackThread>          mCallbackThread; // event callback thread
         const bool                  mAudio;
-        const struct radio_tuner    *mTuner;        // HAL tuner interface. NULL indicates that
+        sp<TunerInterface>          mTuner;        // HAL tuner interface. NULL indicates that
                                                     // this client does not have control on any
                                                     // tuner
     }; // class ModuleClient
diff --git a/services/radio/TunerCallbackInterface.h b/services/radio/TunerCallbackInterface.h
new file mode 100644
index 0000000..4973cce
--- /dev/null
+++ b/services/radio/TunerCallbackInterface.h
@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_TUNER_CALLBACK_INTERFACE_H
+#define ANDROID_HARDWARE_TUNER_CALLBACK_INTERFACE_H
+
+#include <utils/RefBase.h>
+#include <system/radio.h>
+
+namespace android {
+
+class TunerCallbackInterface : public virtual RefBase
+{
+public:
+    virtual void onEvent(radio_hal_event_t *event) = 0;
+
+protected:
+                 TunerCallbackInterface() {}
+    virtual      ~TunerCallbackInterface() {}
+
+};
+
+} // namespace android
+
+#endif // ANDROID_HARDWARE_TUNER_CALLBACK_INTERFACE_H
diff --git a/services/radio/TunerInterface.h b/services/radio/TunerInterface.h
new file mode 100644
index 0000000..4e657d3
--- /dev/null
+++ b/services/radio/TunerInterface.h
@@ -0,0 +1,162 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_TUNER_INTERFACE_H
+#define ANDROID_HARDWARE_TUNER_INTERFACE_H
+
+#include <utils/RefBase.h>
+#include <system/radio.h>
+
+namespace android {
+
+class TunerInterface : public virtual RefBase
+{
+public:
+        /*
+         * Apply current radio band configuration (band, range, channel spacing ...).
+         *
+         * arguments:
+         * - config: the band configuration to apply
+         *
+         * returns:
+         *  0 if configuration could be applied
+         *  -EINVAL if configuration requested is invalid
+         *
+         * Automatically cancels pending scan, step or tune.
+         *
+         * Callback function with event RADIO_EVENT_CONFIG MUST be called once the
+         * configuration is applied or a failure occurs or after a time out.
+         */
+    virtual int setConfiguration(const radio_hal_band_config_t *config) = 0;
+
+        /*
+         * Retrieve current radio band configuration.
+         *
+         * arguments:
+         * - config: where to return the band configuration
+         *
+         * returns:
+         *  0 if valid configuration is returned
+         *  -EINVAL if invalid arguments are passed
+         */
+    virtual int getConfiguration(radio_hal_band_config_t *config) = 0;
+
+        /*
+         * Start scanning up to next valid station.
+         * Must be called when a valid configuration has been applied.
+         *
+         * arguments:
+         * - direction: RADIO_DIRECTION_UP or RADIO_DIRECTION_DOWN
+         * - skip_sub_channel: valid for HD radio or digital radios only: ignore sub channels
+         *  (e.g SPS for HD radio).
+         *
+         * returns:
+         *  0 if scan successfully started
+         *  -ENOSYS if called out of sequence
+         *  -ENODEV if another error occurs
+         *
+         * Automatically cancels pending scan, step or tune.
+         *
+         *  Callback function with event RADIO_EVENT_TUNED MUST be called once
+         *  locked on a station or after a time out or full frequency scan if
+         *  no station found. The event status should indicate if a valid station
+         *  is tuned or not.
+         */
+    virtual int scan(radio_direction_t direction, bool skip_sub_channel) = 0;
+
+        /*
+         * Move one channel spacing up or down.
+         * Must be called when a valid configuration has been applied.
+         *
+         * arguments:
+         * - direction: RADIO_DIRECTION_UP or RADIO_DIRECTION_DOWN
+         * - skip_sub_channel: valid for HD radio or digital radios only: ignore sub channels
+         *  (e.g SPS for HD radio).
+         *
+         * returns:
+         *  0 if step successfully started
+         *  -ENOSYS if called out of sequence
+         *  -ENODEV if another error occurs
+         *
+         * Automatically cancels pending scan, step or tune.
+         *
+         * Callback function with event RADIO_EVENT_TUNED MUST be called once
+         * step completed or after a time out. The event status should indicate
+         * if a valid station is tuned or not.
+         */
+    virtual int step(radio_direction_t direction, bool skip_sub_channel) = 0;
+
+        /*
+         * Tune to specified frequency.
+         * Must be called when a valid configuration has been applied.
+         *
+         * arguments:
+         * - channel: channel to tune to. A frequency in kHz for AM/FM/HD Radio bands.
+         * - sub_channel: valid for HD radio or digital radios only: (e.g SPS number for HD radio).
+         *
+         * returns:
+         *  0 if tune successfully started
+         *  -ENOSYS if called out of sequence
+         *  -EINVAL if invalid arguments are passed
+         *  -ENODEV if another error occurs
+         *
+         * Automatically cancels pending scan, step or tune.
+         *
+         * Callback function with event RADIO_EVENT_TUNED MUST be called once
+         * tuned or after a time out. The event status should indicate
+         * if a valid station is tuned or not.
+         */
+    virtual int tune(unsigned int channel, unsigned int sub_channel) = 0;
+
+        /*
+         * Cancel a scan, step or tune operation.
+         * Must be called while a scan, step or tune operation is pending
+         * (callback not yet sent).
+         *
+         * returns:
+         *  0 if successful
+         *  -ENOSYS if called out of sequence
+         *  -ENODEV if another error occurs
+         *
+         * The callback is not sent.
+         */
+    virtual int cancel() = 0;
+
+        /*
+         * Retrieve current station information.
+         *
+         * arguments:
+         * - info: where to return the program info.
+         * If info->metadata is NULL. no meta data should be returned.
+         * If meta data must be returned, they should be added to or cloned to
+         * info->metadata, not passed from a newly created meta data buffer.
+         *
+         * returns:
+         *  0 if tuned and information available
+         *  -EINVAL if invalid arguments are passed
+         *  -ENODEV if another error occurs
+         */
+    virtual int getProgramInformation(radio_program_info_t *info) = 0;
+
+protected:
+                TunerInterface() {}
+    virtual     ~TunerInterface() {}
+
+};
+
+} // namespace android
+
+#endif // ANDROID_HARDWARE_TUNER_INTERFACE_H
diff --git a/services/soundtrigger/Android.mk b/services/soundtrigger/Android.mk
index 0f5bbba..3e7a7ce 100644
--- a/services/soundtrigger/Android.mk
+++ b/services/soundtrigger/Android.mk
@@ -16,7 +16,6 @@
 
 include $(CLEAR_VARS)
 
-
 ifeq ($(SOUND_TRIGGER_USE_STUB_MODULE), 1)
     LOCAL_CFLAGS += -DSOUND_TRIGGER_USE_STUB_MODULE
 endif
@@ -34,12 +33,33 @@
     libaudioclient \
     libserviceutility
 
+
+ifeq ($(USE_LEGACY_LOCAL_AUDIO_HAL),true)
+# libhardware configuration
+LOCAL_SRC_FILES +=               \
+    SoundTriggerHalLegacy.cpp
+else
+# Treble configuration
+LOCAL_SRC_FILES +=               \
+    SoundTriggerHalHidl.cpp
+
+LOCAL_SHARED_LIBRARIES += \
+    libhwbinder \
+    libhidlbase \
+    libhidltransport \
+    libbase \
+    libaudiohal \
+    android.hardware.soundtrigger@2.0 \
+    android.hardware.audio.common@2.0
+endif
+
+
 LOCAL_C_INCLUDES += \
     $(TOPDIR)frameworks/av/services/audioflinger
 
 LOCAL_MULTILIB := $(AUDIOSERVER_MULTILIB)
 
-LOCAL_CFLAGS := -Wall -Werror
+LOCAL_CFLAGS += -Wall -Werror
 
 LOCAL_MODULE:= libsoundtriggerservice
 
diff --git a/services/soundtrigger/SoundTriggerHalHidl.cpp b/services/soundtrigger/SoundTriggerHalHidl.cpp
new file mode 100644
index 0000000..7cc8a2b
--- /dev/null
+++ b/services/soundtrigger/SoundTriggerHalHidl.cpp
@@ -0,0 +1,604 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "SoundTriggerHalHidl"
+//#define LOG_NDEBUG 0
+
+#include <media/audiohal/hidl/HalDeathHandler.h>
+#include <utils/Log.h>
+#include "SoundTriggerHalHidl.h"
+#include <hwbinder/IPCThreadState.h>
+#include <hwbinder/ProcessState.h>
+
+namespace android {
+
+using android::hardware::Return;
+using android::hardware::ProcessState;
+using android::hardware::audio::common::V2_0::AudioDevice;
+
+/* static */
+sp<SoundTriggerHalInterface> SoundTriggerHalInterface::connectModule(const char *moduleName)
+{
+    return new SoundTriggerHalHidl(moduleName);
+}
+
+int SoundTriggerHalHidl::getProperties(struct sound_trigger_properties *properties)
+{
+    sp<ISoundTriggerHw> soundtrigger = getService();
+    if (soundtrigger == 0) {
+        return -ENODEV;
+    }
+
+    ISoundTriggerHw::Properties halProperties;
+    Return<void> hidlReturn;
+    int ret;
+    {
+        AutoMutex lock(mHalLock);
+        hidlReturn = soundtrigger->getProperties([&](int rc, auto res) {
+            ret = rc;
+            halProperties = res;
+            ALOGI("getProperties res implementor %s", res.implementor.c_str());
+        });
+    }
+
+    if (hidlReturn.isOk()) {
+        if (ret == 0) {
+            convertPropertiesFromHal(properties, &halProperties);
+        }
+    } else {
+        ALOGE("getProperties error %s", hidlReturn.description().c_str());
+        return FAILED_TRANSACTION;
+    }
+    ALOGI("getProperties ret %d", ret);
+    return ret;
+}
+
+int SoundTriggerHalHidl::loadSoundModel(struct sound_trigger_sound_model *sound_model,
+                        sound_model_callback_t callback,
+                        void *cookie,
+                        sound_model_handle_t *handle)
+{
+    if (handle == NULL) {
+        return -EINVAL;
+    }
+
+    sp<ISoundTriggerHw> soundtrigger = getService();
+    if (soundtrigger == 0) {
+        return -ENODEV;
+    }
+
+    uint32_t modelId;
+    {
+        AutoMutex lock(mLock);
+        do {
+            modelId = nextUniqueId();
+            ALOGI("loadSoundModel modelId %u", modelId);
+            sp<SoundModel> model = mSoundModels.valueFor(modelId);
+            ALOGI("loadSoundModel model %p", model.get());
+        } while (mSoundModels.valueFor(modelId) != 0 && modelId != 0);
+    }
+    LOG_ALWAYS_FATAL_IF(modelId == 0,
+                        "loadSoundModel(): wrap around in sound model IDs, num loaded models %zd",
+                        mSoundModels.size());
+
+    ISoundTriggerHw::SoundModel *halSoundModel =
+            convertSoundModelToHal(sound_model);
+    if (halSoundModel == NULL) {
+        return -EINVAL;
+    }
+
+    Return<void> hidlReturn;
+    int ret;
+    SoundModelHandle halHandle;
+    {
+        AutoMutex lock(mHalLock);
+        if (sound_model->type == SOUND_MODEL_TYPE_KEYPHRASE) {
+            hidlReturn = soundtrigger->loadPhraseSoundModel(
+                    *(const ISoundTriggerHw::PhraseSoundModel *)halSoundModel,
+                    this, modelId, [&](int32_t retval, auto res) {
+                ret = retval;
+                halHandle = res;
+            });
+
+        } else {
+            hidlReturn = soundtrigger->loadSoundModel(*halSoundModel,
+                    this, modelId, [&](int32_t retval, auto res) {
+                ret = retval;
+                halHandle = res;
+            });
+        }
+    }
+
+    delete halSoundModel;
+
+    if (hidlReturn.isOk()) {
+        if (ret == 0) {
+            AutoMutex lock(mLock);
+            *handle = (sound_model_handle_t)modelId;
+            sp<SoundModel> model = new SoundModel(*handle, callback, cookie, halHandle);
+            mSoundModels.add(*handle, model);
+        }
+    } else {
+        ALOGE("loadSoundModel error %s", hidlReturn.description().c_str());
+        return FAILED_TRANSACTION;
+    }
+
+    return ret;
+}
+
+int SoundTriggerHalHidl::unloadSoundModel(sound_model_handle_t handle)
+{
+    sp<ISoundTriggerHw> soundtrigger = getService();
+    if (soundtrigger == 0) {
+        return -ENODEV;
+    }
+
+    sp<SoundModel> model = removeModel(handle);
+    if (model == 0) {
+        ALOGE("unloadSoundModel model not found for handle %u", handle);
+        return -EINVAL;
+    }
+
+    Return<int32_t> hidlReturn(0);
+    {
+        AutoMutex lock(mHalLock);
+        hidlReturn = soundtrigger->unloadSoundModel(model->mHalHandle);
+    }
+
+    if (!hidlReturn.isOk()) {
+        ALOGE("unloadSoundModel error %s", hidlReturn.description().c_str());
+        return FAILED_TRANSACTION;
+    }
+
+    return hidlReturn;
+}
+
+int SoundTriggerHalHidl::startRecognition(sound_model_handle_t handle,
+                         const struct sound_trigger_recognition_config *config,
+                         recognition_callback_t callback,
+                         void *cookie)
+{
+    sp<ISoundTriggerHw> soundtrigger = getService();
+    if (soundtrigger == 0) {
+        return -ENODEV;
+    }
+
+    sp<SoundModel> model = getModel(handle);
+    if (model == 0) {
+        ALOGE("startRecognition model not found for handle %u", handle);
+        return -EINVAL;
+    }
+
+    model->mRecognitionCallback = callback;
+    model->mRecognitionCookie = cookie;
+
+    ISoundTriggerHw::RecognitionConfig *halConfig =
+            convertRecognitionConfigToHal(config);
+
+    Return<int32_t> hidlReturn(0);
+    {
+        AutoMutex lock(mHalLock);
+        hidlReturn = soundtrigger->startRecognition(model->mHalHandle, *halConfig, this, handle);
+    }
+
+    delete halConfig;
+
+    if (!hidlReturn.isOk()) {
+        ALOGE("startRecognition error %s", hidlReturn.description().c_str());
+        return FAILED_TRANSACTION;
+    }
+    return hidlReturn;
+}
+
+int SoundTriggerHalHidl::stopRecognition(sound_model_handle_t handle)
+{
+    sp<ISoundTriggerHw> soundtrigger = getService();
+    if (soundtrigger == 0) {
+        return -ENODEV;
+    }
+
+    sp<SoundModel> model = getModel(handle);
+    if (model == 0) {
+        ALOGE("stopRecognition model not found for handle %u", handle);
+        return -EINVAL;
+    }
+
+    Return<int32_t> hidlReturn(0);
+    {
+        AutoMutex lock(mHalLock);
+        hidlReturn = soundtrigger->stopRecognition(model->mHalHandle);
+    }
+
+    if (!hidlReturn.isOk()) {
+        ALOGE("stopRecognition error %s", hidlReturn.description().c_str());
+        return FAILED_TRANSACTION;
+    }
+    return hidlReturn;
+}
+
+int SoundTriggerHalHidl::stopAllRecognitions()
+{
+    sp<ISoundTriggerHw> soundtrigger = getService();
+    if (soundtrigger == 0) {
+        return -ENODEV;
+    }
+
+    Return<int32_t> hidlReturn(0);
+    {
+        AutoMutex lock(mHalLock);
+        hidlReturn = soundtrigger->stopAllRecognitions();
+    }
+
+    if (!hidlReturn.isOk()) {
+        ALOGE("stopAllRecognitions error %s", hidlReturn.description().c_str());
+        return FAILED_TRANSACTION;
+    }
+    return hidlReturn;
+}
+
+SoundTriggerHalHidl::SoundTriggerHalHidl(const char *moduleName)
+    : mModuleName(moduleName), mNextUniqueId(1)
+{
+}
+
+SoundTriggerHalHidl::~SoundTriggerHalHidl()
+{
+}
+
+sp<ISoundTriggerHw> SoundTriggerHalHidl::getService()
+{
+    AutoMutex lock(mLock);
+    if (mISoundTrigger == 0) {
+        if (mModuleName == NULL) {
+            mModuleName = "primary";
+        }
+        std::string serviceName = "sound_trigger.";
+        serviceName.append(mModuleName);
+        mISoundTrigger = ISoundTriggerHw::getService(serviceName);
+        if (mISoundTrigger != 0) {
+            mISoundTrigger->linkToDeath(HalDeathHandler::getInstance(), 0 /*cookie*/);
+        }
+    }
+    return mISoundTrigger;
+}
+
+sp<SoundTriggerHalHidl::SoundModel> SoundTriggerHalHidl::getModel(sound_model_handle_t handle)
+{
+    AutoMutex lock(mLock);
+    return mSoundModels.valueFor(handle);
+}
+
+sp<SoundTriggerHalHidl::SoundModel> SoundTriggerHalHidl::removeModel(sound_model_handle_t handle)
+{
+    AutoMutex lock(mLock);
+    sp<SoundModel> model = mSoundModels.valueFor(handle);
+    mSoundModels.removeItem(handle);
+    return model;
+}
+
+uint32_t SoundTriggerHalHidl::nextUniqueId()
+{
+    return (uint32_t) atomic_fetch_add_explicit(&mNextUniqueId,
+                (uint_fast32_t) 1, memory_order_acq_rel);
+}
+
+void SoundTriggerHalHidl::convertUuidToHal(Uuid *halUuid,
+                                           const sound_trigger_uuid_t *uuid)
+{
+    halUuid->timeLow = uuid->timeLow;
+    halUuid->timeMid = uuid->timeMid;
+    halUuid->versionAndTimeHigh = uuid->timeHiAndVersion;
+    halUuid->variantAndClockSeqHigh = uuid->clockSeq;
+    memcpy(halUuid->node.data(), &uuid->node[0], sizeof(uuid->node));
+}
+
+void SoundTriggerHalHidl::convertUuidFromHal(sound_trigger_uuid_t *uuid,
+                                             const Uuid *halUuid)
+{
+    uuid->timeLow = halUuid->timeLow;
+    uuid->timeMid = halUuid->timeMid;
+    uuid->timeHiAndVersion = halUuid->versionAndTimeHigh;
+    uuid->clockSeq = halUuid->variantAndClockSeqHigh;
+    memcpy(&uuid->node[0], halUuid->node.data(), sizeof(uuid->node));
+}
+
+void SoundTriggerHalHidl::convertPropertiesFromHal(
+        struct sound_trigger_properties *properties,
+        const ISoundTriggerHw::Properties *halProperties)
+{
+    strlcpy(properties->implementor,
+            halProperties->implementor.c_str(), SOUND_TRIGGER_MAX_STRING_LEN);
+    strlcpy(properties->description,
+            halProperties->description.c_str(), SOUND_TRIGGER_MAX_STRING_LEN);
+    properties->version = halProperties->version;
+    convertUuidFromHal(&properties->uuid, &halProperties->uuid);
+    properties->max_sound_models = halProperties->maxSoundModels;
+    properties->max_key_phrases = halProperties->maxKeyPhrases;
+    properties->max_users = halProperties->maxUsers;
+    properties->recognition_modes = halProperties->recognitionModes;
+    properties->capture_transition = (bool)halProperties->captureTransition;
+    properties->max_buffer_ms = halProperties->maxBufferMs;
+    properties->concurrent_capture = (bool)halProperties->concurrentCapture;
+    properties->trigger_in_event = (bool)halProperties->triggerInEvent;
+    properties->power_consumption_mw = halProperties->powerConsumptionMw;
+}
+
+void SoundTriggerHalHidl::convertTriggerPhraseToHal(
+        ISoundTriggerHw::Phrase *halTriggerPhrase,
+        const struct sound_trigger_phrase *triggerPhrase)
+{
+    halTriggerPhrase->id = triggerPhrase->id;
+    halTriggerPhrase->recognitionModes = triggerPhrase->recognition_mode;
+    halTriggerPhrase->users.setToExternal((uint32_t *)&triggerPhrase->users[0], triggerPhrase->num_users);
+    halTriggerPhrase->locale = triggerPhrase->locale;
+    halTriggerPhrase->text = triggerPhrase->text;
+}
+
+ISoundTriggerHw::SoundModel *SoundTriggerHalHidl::convertSoundModelToHal(
+        const struct sound_trigger_sound_model *soundModel)
+{
+    ISoundTriggerHw::SoundModel *halModel = NULL;
+    if (soundModel->type == SOUND_MODEL_TYPE_KEYPHRASE) {
+        ISoundTriggerHw::PhraseSoundModel *halKeyPhraseModel =
+                new ISoundTriggerHw::PhraseSoundModel();
+        struct sound_trigger_phrase_sound_model *keyPhraseModel =
+                (struct sound_trigger_phrase_sound_model *)soundModel;
+        ISoundTriggerHw::Phrase *halPhrases =
+                new ISoundTriggerHw::Phrase[keyPhraseModel->num_phrases];
+
+
+        for (unsigned int i = 0; i < keyPhraseModel->num_phrases; i++) {
+            convertTriggerPhraseToHal(&halPhrases[i],
+                                      &keyPhraseModel->phrases[i]);
+        }
+        halKeyPhraseModel->phrases.setToExternal(halPhrases, keyPhraseModel->num_phrases);
+        // FIXME: transfer buffer ownership. should have a method for that in hidl_vec
+        halKeyPhraseModel->phrases.resize(keyPhraseModel->num_phrases);
+
+        delete[] halPhrases;
+
+        halModel = (ISoundTriggerHw::SoundModel *)halKeyPhraseModel;
+    } else {
+        halModel = new ISoundTriggerHw::SoundModel();
+    }
+    halModel->type = (SoundModelType)soundModel->type;
+    convertUuidToHal(&halModel->uuid, &soundModel->uuid);
+    convertUuidToHal(&halModel->vendorUuid, &soundModel->vendor_uuid);
+    halModel->data.setToExternal((uint8_t *)soundModel + soundModel->data_offset, soundModel->data_size);
+    halModel->data.resize(soundModel->data_size);
+
+    return halModel;
+}
+
+void SoundTriggerHalHidl::convertPhraseRecognitionExtraToHal(
+        PhraseRecognitionExtra *halExtra,
+        const struct sound_trigger_phrase_recognition_extra *extra)
+{
+    halExtra->id = extra->id;
+    halExtra->recognitionModes = extra->recognition_modes;
+    halExtra->confidenceLevel = extra->confidence_level;
+    ConfidenceLevel *halLevels =
+            new ConfidenceLevel[extra->num_levels];
+    for (unsigned int i = 0; i < extra->num_levels; i++) {
+        halLevels[i].userId = extra->levels[i].user_id;
+        halLevels[i].levelPercent = extra->levels[i].level;
+    }
+    halExtra->levels.setToExternal(halLevels, extra->num_levels);
+    // FIXME: transfer buffer ownership. should have a method for that in hidl_vec
+    halExtra->levels.resize(extra->num_levels);
+
+    delete[] halLevels;
+}
+
+
+ISoundTriggerHw::RecognitionConfig *SoundTriggerHalHidl::convertRecognitionConfigToHal(
+        const struct sound_trigger_recognition_config *config)
+{
+    ISoundTriggerHw::RecognitionConfig *halConfig =
+            new ISoundTriggerHw::RecognitionConfig();
+
+    halConfig->captureHandle = config->capture_handle;
+    halConfig->captureDevice = (AudioDevice)config->capture_device;
+    halConfig->captureRequested = (uint32_t)config->capture_requested;
+
+    PhraseRecognitionExtra *halExtras =
+            new PhraseRecognitionExtra[config->num_phrases];
+
+    for (unsigned int i = 0; i < config->num_phrases; i++) {
+        convertPhraseRecognitionExtraToHal(&halExtras[i],
+                                  &config->phrases[i]);
+    }
+    halConfig->phrases.setToExternal(halExtras, config->num_phrases);
+    // FIXME: transfer buffer ownership. should have a method for that in hidl_vec
+    halConfig->phrases.resize(config->num_phrases);
+
+    delete[] halExtras;
+
+    halConfig->data.setToExternal((uint8_t *)config + config->data_offset, config->data_size);
+
+    return halConfig;
+}
+
+
+// ISoundTriggerHwCallback
+::android::hardware::Return<void> SoundTriggerHalHidl::recognitionCallback(
+        const ISoundTriggerHwCallback::RecognitionEvent& halEvent,
+        CallbackCookie cookie)
+{
+    sp<SoundModel> model;
+    {
+        AutoMutex lock(mLock);
+        model = mSoundModels.valueFor((SoundModelHandle)cookie);
+        if (model == 0) {
+            return Return<void>();
+        }
+    }
+    struct sound_trigger_recognition_event *event = convertRecognitionEventFromHal(&halEvent);
+    if (event == NULL) {
+        return Return<void>();
+    }
+    event->model = model->mHandle;
+    model->mRecognitionCallback(event, model->mRecognitionCookie);
+
+    free(event);
+
+    return Return<void>();
+}
+
+::android::hardware::Return<void> SoundTriggerHalHidl::phraseRecognitionCallback(
+        const ISoundTriggerHwCallback::PhraseRecognitionEvent& halEvent,
+        CallbackCookie cookie)
+{
+    sp<SoundModel> model;
+    {
+        AutoMutex lock(mLock);
+        model = mSoundModels.valueFor((SoundModelHandle)cookie);
+        if (model == 0) {
+            return Return<void>();
+        }
+    }
+
+    struct sound_trigger_recognition_event *event = convertRecognitionEventFromHal(
+                                   (const ISoundTriggerHwCallback::RecognitionEvent *)&halEvent);
+    if (event == NULL) {
+        return Return<void>();
+    }
+
+    event->model = model->mHandle;
+    model->mRecognitionCallback(event, model->mRecognitionCookie);
+
+    free(event);
+
+    return Return<void>();
+}
+
+::android::hardware::Return<void> SoundTriggerHalHidl::soundModelCallback(
+        const ISoundTriggerHwCallback::ModelEvent& halEvent,
+        CallbackCookie cookie)
+{
+    sp<SoundModel> model;
+    {
+        AutoMutex lock(mLock);
+        model = mSoundModels.valueFor((SoundModelHandle)cookie);
+        if (model == 0) {
+            return Return<void>();
+        }
+    }
+
+    struct sound_trigger_model_event *event = convertSoundModelEventFromHal(&halEvent);
+    if (event == NULL) {
+        return Return<void>();
+    }
+
+    event->model = model->mHandle;
+    model->mSoundModelCallback(event, model->mSoundModelCookie);
+
+    free(event);
+
+    return Return<void>();
+}
+
+
+struct sound_trigger_model_event *SoundTriggerHalHidl::convertSoundModelEventFromHal(
+                                              const ISoundTriggerHwCallback::ModelEvent *halEvent)
+{
+    struct sound_trigger_model_event *event = (struct sound_trigger_model_event *)malloc(
+            sizeof(struct sound_trigger_model_event) +
+            halEvent->data.size());
+    if (event == NULL) {
+        return NULL;
+    }
+
+    event->status = (int)halEvent->status;
+    // event->model to be set by caller
+    event->data_offset = sizeof(struct sound_trigger_model_event);
+    event->data_size = halEvent->data.size();
+    uint8_t *dst = (uint8_t *)event + event->data_offset;
+    uint8_t *src = (uint8_t *)&halEvent->data[0];
+    memcpy(dst, src, halEvent->data.size());
+
+    return event;
+}
+
+void SoundTriggerHalHidl::convertPhraseRecognitionExtraFromHal(
+        struct sound_trigger_phrase_recognition_extra *extra,
+        const PhraseRecognitionExtra *halExtra)
+{
+    extra->id = halExtra->id;
+    extra->recognition_modes = halExtra->recognitionModes;
+    extra->confidence_level = halExtra->confidenceLevel;
+
+    size_t i;
+    for (i = 0; i < halExtra->levels.size() && i < SOUND_TRIGGER_MAX_USERS; i++) {
+        extra->levels[i].user_id = halExtra->levels[i].userId;
+        extra->levels[i].level = halExtra->levels[i].levelPercent;
+    }
+    extra->num_levels = (unsigned int)i;
+}
+
+
+struct sound_trigger_recognition_event *SoundTriggerHalHidl::convertRecognitionEventFromHal(
+        const ISoundTriggerHwCallback::RecognitionEvent *halEvent)
+{
+    struct sound_trigger_recognition_event *event;
+
+    if (halEvent->type == SoundModelType::KEYPHRASE) {
+        struct sound_trigger_phrase_recognition_event *phraseEvent =
+                (struct sound_trigger_phrase_recognition_event *)malloc(
+                        sizeof(struct sound_trigger_phrase_recognition_event) +
+                        halEvent->data.size());
+        if (phraseEvent == NULL) {
+            return NULL;
+        }
+        const ISoundTriggerHwCallback::PhraseRecognitionEvent *halPhraseEvent =
+                (const ISoundTriggerHwCallback::PhraseRecognitionEvent *)halEvent;
+
+        for (unsigned int i = 0; i < halPhraseEvent->phraseExtras.size(); i++) {
+            convertPhraseRecognitionExtraFromHal(&phraseEvent->phrase_extras[i],
+                                                 &halPhraseEvent->phraseExtras[i]);
+        }
+        phraseEvent->num_phrases = halPhraseEvent->phraseExtras.size();
+        event = (struct sound_trigger_recognition_event *)phraseEvent;
+        event->data_offset = sizeof(sound_trigger_phrase_recognition_event);
+    } else {
+        event = (struct sound_trigger_recognition_event *)malloc(
+                sizeof(struct sound_trigger_recognition_event) + halEvent->data.size());
+        if (event == NULL) {
+            return NULL;
+        }
+        event->data_offset = sizeof(sound_trigger_recognition_event);
+    }
+    event->status = (int)halEvent->status;
+    event->type = (sound_trigger_sound_model_type_t)halEvent->type;
+    // event->model to be set by caller
+    event->capture_available = (bool)halEvent->captureAvailable;
+    event->capture_session = halEvent->captureSession;
+    event->capture_delay_ms = halEvent->captureDelayMs;
+    event->capture_preamble_ms = halEvent->capturePreambleMs;
+    event->trigger_in_data = (bool)halEvent->triggerInData;
+    event->audio_config.sample_rate = halEvent->audioConfig.sampleRateHz;
+    event->audio_config.channel_mask = (audio_channel_mask_t)halEvent->audioConfig.channelMask;
+    event->audio_config.format = (audio_format_t)halEvent->audioConfig.format;
+
+    event->data_size = halEvent->data.size();
+    uint8_t *dst = (uint8_t *)event + event->data_offset;
+    uint8_t *src = (uint8_t *)&halEvent->data[0];
+    memcpy(dst, src, halEvent->data.size());
+
+    return event;
+}
+
+} // namespace android
diff --git a/services/soundtrigger/SoundTriggerHalHidl.h b/services/soundtrigger/SoundTriggerHalHidl.h
new file mode 100644
index 0000000..0c68cf1
--- /dev/null
+++ b/services/soundtrigger/SoundTriggerHalHidl.h
@@ -0,0 +1,163 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_SOUNDTRIGGER_HAL_HIDL_H
+#define ANDROID_HARDWARE_SOUNDTRIGGER_HAL_HIDL_H
+
+#include <stdatomic.h>
+#include <utils/RefBase.h>
+#include <utils/KeyedVector.h>
+#include <utils/Vector.h>
+#include <utils/threads.h>
+#include "SoundTriggerHalInterface.h"
+#include <android/hardware/soundtrigger/2.0/types.h>
+#include <android/hardware/soundtrigger/2.0/ISoundTriggerHw.h>
+#include <android/hardware/soundtrigger/2.0/ISoundTriggerHwCallback.h>
+
+namespace android {
+
+using android::hardware::audio::common::V2_0::Uuid;
+using android::hardware::soundtrigger::V2_0::ConfidenceLevel;
+using android::hardware::soundtrigger::V2_0::PhraseRecognitionExtra;
+using android::hardware::soundtrigger::V2_0::SoundModelType;
+using android::hardware::soundtrigger::V2_0::SoundModelHandle;
+using android::hardware::soundtrigger::V2_0::ISoundTriggerHw;
+using android::hardware::soundtrigger::V2_0::ISoundTriggerHwCallback;
+
+class SoundTriggerHalHidl : public SoundTriggerHalInterface,
+                            public virtual ISoundTriggerHwCallback
+
+{
+public:
+        virtual int getProperties(struct sound_trigger_properties *properties);
+
+        /*
+         * Load a sound model. Once loaded, recognition of this model can be started and stopped.
+         * Only one active recognition per model at a time. The SoundTrigger service will handle
+         * concurrent recognition requests by different users/applications on the same model.
+         * The implementation returns a unique handle used by other functions (unload_sound_model(),
+         * start_recognition(), etc...
+         */
+        virtual int loadSoundModel(struct sound_trigger_sound_model *sound_model,
+                                sound_model_callback_t callback,
+                                void *cookie,
+                                sound_model_handle_t *handle);
+
+        /*
+         * Unload a sound model. A sound model can be unloaded to make room for a new one to overcome
+         * implementation limitations.
+         */
+        virtual int unloadSoundModel(sound_model_handle_t handle);
+
+        /* Start recognition on a given model. Only one recognition active at a time per model.
+         * Once recognition succeeds of fails, the callback is called.
+         * TODO: group recognition configuration parameters into one struct and add key phrase options.
+         */
+        virtual int startRecognition(sound_model_handle_t handle,
+                                 const struct sound_trigger_recognition_config *config,
+                                 recognition_callback_t callback,
+                                 void *cookie);
+
+        /* Stop recognition on a given model.
+         * The implementation does not have to call the callback when stopped via this method.
+         */
+        virtual int stopRecognition(sound_model_handle_t handle);
+
+        /* Stop recognition on all models.
+         * Only supported for device api versions SOUND_TRIGGER_DEVICE_API_VERSION_1_1 or above.
+         * If no implementation is provided, stop_recognition will be called for each running model.
+         */
+        virtual int stopAllRecognitions();
+
+        // ISoundTriggerHwCallback
+        virtual ::android::hardware::Return<void> recognitionCallback(
+                const ISoundTriggerHwCallback::RecognitionEvent& event, CallbackCookie cookie);
+        virtual ::android::hardware::Return<void> phraseRecognitionCallback(
+                const ISoundTriggerHwCallback::PhraseRecognitionEvent& event, int32_t cookie);
+        virtual ::android::hardware::Return<void> soundModelCallback(
+                const ISoundTriggerHwCallback::ModelEvent& event, CallbackCookie cookie);
+private:
+        class SoundModel : public RefBase {
+        public:
+            SoundModel(sound_model_handle_t handle, sound_model_callback_t callback,
+                       void *cookie, android::hardware::soundtrigger::V2_0::SoundModelHandle halHandle)
+                 : mHandle(handle), mHalHandle(halHandle),
+                   mSoundModelCallback(callback), mSoundModelCookie(cookie),
+                   mRecognitionCallback(NULL), mRecognitionCookie(NULL) {}
+            ~SoundModel() {}
+
+            sound_model_handle_t   mHandle;
+            android::hardware::soundtrigger::V2_0::SoundModelHandle mHalHandle;
+            sound_model_callback_t mSoundModelCallback;
+            void *                 mSoundModelCookie;
+            recognition_callback_t mRecognitionCallback;
+            void *                 mRecognitionCookie;
+        };
+
+        friend class SoundTriggerHalInterface;
+
+        explicit SoundTriggerHalHidl(const char *moduleName = NULL);
+        virtual  ~SoundTriggerHalHidl();
+
+        void convertUuidToHal(Uuid *halUuid,
+                              const sound_trigger_uuid_t *uuid);
+        void convertUuidFromHal(sound_trigger_uuid_t *uuid,
+                                const Uuid *halUuid);
+
+        void convertPropertiesFromHal(
+                struct sound_trigger_properties *properties,
+                const ISoundTriggerHw::Properties *halProperties);
+
+        void convertTriggerPhraseToHal(
+                ISoundTriggerHw::Phrase *halTriggerPhrase,
+                const struct sound_trigger_phrase *triggerPhrase);
+        ISoundTriggerHw::SoundModel *convertSoundModelToHal(
+                const struct sound_trigger_sound_model *soundModel);
+
+        void convertPhraseRecognitionExtraToHal(
+                PhraseRecognitionExtra *halExtra,
+                const struct sound_trigger_phrase_recognition_extra *extra);
+        ISoundTriggerHw::RecognitionConfig *convertRecognitionConfigToHal(
+                const struct sound_trigger_recognition_config *config);
+
+        struct sound_trigger_model_event *convertSoundModelEventFromHal(
+                                              const ISoundTriggerHwCallback::ModelEvent *halEvent);
+        void convertPhraseRecognitionExtraFromHal(
+                struct sound_trigger_phrase_recognition_extra *extra,
+                const PhraseRecognitionExtra *halExtra);
+        struct sound_trigger_recognition_event *convertRecognitionEventFromHal(
+                const ISoundTriggerHwCallback::RecognitionEvent *halEvent);
+
+        uint32_t nextUniqueId();
+        sp<ISoundTriggerHw> getService();
+        sp<SoundModel> getModel(sound_model_handle_t handle);
+        sp<SoundModel> removeModel(sound_model_handle_t handle);
+
+        static pthread_once_t sOnceControl;
+        static void sOnceInit();
+
+        Mutex mLock;
+        Mutex mHalLock;
+        const char *mModuleName;
+        volatile atomic_uint_fast32_t  mNextUniqueId;
+        // Effect chains without a valid thread
+        DefaultKeyedVector< sound_model_handle_t , sp<SoundModel> > mSoundModels;
+        sp<::android::hardware::soundtrigger::V2_0::ISoundTriggerHw> mISoundTrigger;
+};
+
+} // namespace android
+
+#endif // ANDROID_HARDWARE_SOUNDTRIGGER_HAL_HIDL_H
diff --git a/services/soundtrigger/SoundTriggerHalInterface.h b/services/soundtrigger/SoundTriggerHalInterface.h
new file mode 100644
index 0000000..c083195
--- /dev/null
+++ b/services/soundtrigger/SoundTriggerHalInterface.h
@@ -0,0 +1,80 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_SOUNDTRIGGER_HAL_INTERFACE_H
+#define ANDROID_HARDWARE_SOUNDTRIGGER_HAL_INTERFACE_H
+
+#include <utils/RefBase.h>
+#include <system/sound_trigger.h>
+#include <hardware/sound_trigger.h>
+
+namespace android {
+
+class SoundTriggerHalInterface : public virtual RefBase
+{
+public:
+        /* get a sound trigger HAL instance */
+        static sp<SoundTriggerHalInterface> connectModule(const char *moduleName);
+
+        virtual     ~SoundTriggerHalInterface() {}
+
+        virtual int getProperties(struct sound_trigger_properties *properties) = 0;
+
+        /*
+         * Load a sound model. Once loaded, recognition of this model can be started and stopped.
+         * Only one active recognition per model at a time. The SoundTrigger service will handle
+         * concurrent recognition requests by different users/applications on the same model.
+         * The implementation returns a unique handle used by other functions (unload_sound_model(),
+         * start_recognition(), etc...
+         */
+        virtual int loadSoundModel(struct sound_trigger_sound_model *sound_model,
+                                sound_model_callback_t callback,
+                                void *cookie,
+                                sound_model_handle_t *handle) = 0;
+
+        /*
+         * Unload a sound model. A sound model can be unloaded to make room for a new one to overcome
+         * implementation limitations.
+         */
+        virtual int unloadSoundModel(sound_model_handle_t handle) = 0;
+
+        /* Start recognition on a given model. Only one recognition active at a time per model.
+         * Once recognition succeeds of fails, the callback is called.
+         * TODO: group recognition configuration parameters into one struct and add key phrase options.
+         */
+        virtual int startRecognition(sound_model_handle_t handle,
+                                 const struct sound_trigger_recognition_config *config,
+                                 recognition_callback_t callback,
+                                 void *cookie) = 0;
+
+        /* Stop recognition on a given model.
+         * The implementation does not have to call the callback when stopped via this method.
+         */
+        virtual int stopRecognition(sound_model_handle_t handle) = 0;
+
+        /* Stop recognition on all models.
+         * Only supported for device api versions SOUND_TRIGGER_DEVICE_API_VERSION_1_1 or above.
+         * If no implementation is provided, stop_recognition will be called for each running model.
+         */
+        virtual int stopAllRecognitions() = 0;
+
+protected:
+        SoundTriggerHalInterface() {}
+};
+
+} // namespace android
+
+#endif // ANDROID_HARDWARE_SOUNDTRIGGER_HAL_INTERFACE_H
diff --git a/services/soundtrigger/SoundTriggerHalLegacy.cpp b/services/soundtrigger/SoundTriggerHalLegacy.cpp
new file mode 100644
index 0000000..2b78818
--- /dev/null
+++ b/services/soundtrigger/SoundTriggerHalLegacy.cpp
@@ -0,0 +1,127 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <utils/Log.h>
+#include "SoundTriggerHalLegacy.h"
+
+namespace android {
+
+/* static */
+sp<SoundTriggerHalInterface> SoundTriggerHalInterface::connectModule(const char *moduleName)
+{
+    return new SoundTriggerHalLegacy(moduleName);
+}
+
+SoundTriggerHalLegacy::SoundTriggerHalLegacy(const char *moduleName)
+    : mModuleName(moduleName), mHwDevice(NULL)
+{
+}
+
+void SoundTriggerHalLegacy::onFirstRef()
+{
+    const hw_module_t *mod;
+    int rc;
+
+    if (mModuleName == NULL) {
+        mModuleName = "primary";
+    }
+
+    rc = hw_get_module_by_class(SOUND_TRIGGER_HARDWARE_MODULE_ID, mModuleName, &mod);
+    if (rc != 0) {
+        ALOGE("couldn't load sound trigger module %s.%s (%s)",
+              SOUND_TRIGGER_HARDWARE_MODULE_ID, mModuleName, strerror(-rc));
+        return;
+    }
+    rc = sound_trigger_hw_device_open(mod, &mHwDevice);
+    if (rc != 0) {
+        ALOGE("couldn't open sound trigger hw device in %s.%s (%s)",
+              SOUND_TRIGGER_HARDWARE_MODULE_ID, mModuleName, strerror(-rc));
+        mHwDevice = NULL;
+        return;
+    }
+    if (mHwDevice->common.version < SOUND_TRIGGER_DEVICE_API_VERSION_1_0 ||
+            mHwDevice->common.version > SOUND_TRIGGER_DEVICE_API_VERSION_CURRENT) {
+        ALOGE("wrong sound trigger hw device version %04x", mHwDevice->common.version);
+        return;
+    }
+}
+
+SoundTriggerHalLegacy::~SoundTriggerHalLegacy()
+{
+    if (mHwDevice != NULL) {
+        sound_trigger_hw_device_close(mHwDevice);
+    }
+}
+
+int SoundTriggerHalLegacy::getProperties(struct sound_trigger_properties *properties)
+{
+    if (mHwDevice == NULL) {
+        return -ENODEV;
+    }
+    return mHwDevice->get_properties(mHwDevice, properties);
+}
+
+int SoundTriggerHalLegacy::loadSoundModel(struct sound_trigger_sound_model *sound_model,
+                        sound_model_callback_t callback,
+                        void *cookie,
+                        sound_model_handle_t *handle)
+{
+    if (mHwDevice == NULL) {
+        return -ENODEV;
+    }
+    return mHwDevice->load_sound_model(mHwDevice, sound_model, callback, cookie, handle);
+}
+
+int SoundTriggerHalLegacy::unloadSoundModel(sound_model_handle_t handle)
+{
+    if (mHwDevice == NULL) {
+        return -ENODEV;
+    }
+    return mHwDevice->unload_sound_model(mHwDevice, handle);
+}
+
+int SoundTriggerHalLegacy::startRecognition(sound_model_handle_t handle,
+                         const struct sound_trigger_recognition_config *config,
+                         recognition_callback_t callback,
+                         void *cookie)
+{
+    if (mHwDevice == NULL) {
+        return -ENODEV;
+    }
+    return mHwDevice->start_recognition(mHwDevice, handle, config, callback, cookie);
+}
+
+int SoundTriggerHalLegacy::stopRecognition(sound_model_handle_t handle)
+{
+    if (mHwDevice == NULL) {
+        return -ENODEV;
+    }
+    return mHwDevice->stop_recognition(mHwDevice, handle);
+}
+
+int SoundTriggerHalLegacy::stopAllRecognitions()
+{
+    if (mHwDevice == NULL) {
+        return -ENODEV;
+    }
+    if (mHwDevice->common.version >= SOUND_TRIGGER_DEVICE_API_VERSION_1_1 &&
+     mHwDevice->stop_all_recognitions) {
+        return mHwDevice->stop_all_recognitions(mHwDevice);
+    }
+    return -ENOSYS;
+}
+
+} // namespace android
diff --git a/services/soundtrigger/SoundTriggerHalLegacy.h b/services/soundtrigger/SoundTriggerHalLegacy.h
new file mode 100644
index 0000000..52488de
--- /dev/null
+++ b/services/soundtrigger/SoundTriggerHalLegacy.h
@@ -0,0 +1,85 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_HARDWARE_SOUNDTRIGGER_HAL_LEGACY_H
+#define ANDROID_HARDWARE_SOUNDTRIGGER_HAL_LEGACY_H
+
+#include "SoundTriggerHalInterface.h"
+
+namespace android {
+
+class SoundTriggerHalLegacy : public SoundTriggerHalInterface
+
+{
+public:
+        virtual             ~SoundTriggerHalLegacy();
+
+        virtual int getProperties(struct sound_trigger_properties *properties);
+
+        /*
+         * Load a sound model. Once loaded, recognition of this model can be started and stopped.
+         * Only one active recognition per model at a time. The SoundTrigger service will handle
+         * concurrent recognition requests by different users/applications on the same model.
+         * The implementation returns a unique handle used by other functions (unload_sound_model(),
+         * start_recognition(), etc...
+         */
+        virtual int loadSoundModel(struct sound_trigger_sound_model *sound_model,
+                                sound_model_callback_t callback,
+                                void *cookie,
+                                sound_model_handle_t *handle);
+
+        /*
+         * Unload a sound model. A sound model can be unloaded to make room for a new one to overcome
+         * implementation limitations.
+         */
+        virtual int unloadSoundModel(sound_model_handle_t handle);
+
+        /* Start recognition on a given model. Only one recognition active at a time per model.
+         * Once recognition succeeds of fails, the callback is called.
+         * TODO: group recognition configuration parameters into one struct and add key phrase options.
+         */
+        virtual int startRecognition(sound_model_handle_t handle,
+                                 const struct sound_trigger_recognition_config *config,
+                                 recognition_callback_t callback,
+                                 void *cookie);
+
+        /* Stop recognition on a given model.
+         * The implementation does not have to call the callback when stopped via this method.
+         */
+        virtual int stopRecognition(sound_model_handle_t handle);
+
+        /* Stop recognition on all models.
+         * Only supported for device api versions SOUND_TRIGGER_DEVICE_API_VERSION_1_1 or above.
+         * If no implementation is provided, stop_recognition will be called for each running model.
+         */
+        int stopAllRecognitions();
+
+        // RefBase
+        virtual     void        onFirstRef();
+
+private:
+
+        friend class SoundTriggerHalInterface;
+
+        explicit SoundTriggerHalLegacy(const char *moduleName = NULL);
+
+        const char *mModuleName;
+        struct sound_trigger_hw_device*        mHwDevice;
+};
+
+} // namespace android
+
+#endif // ANDROID_HARDWARE_SOUNDTRIGGER_HAL_LEGACY_H
diff --git a/services/soundtrigger/SoundTriggerHwService.cpp b/services/soundtrigger/SoundTriggerHwService.cpp
index 6a52b9c..5b8d990 100644
--- a/services/soundtrigger/SoundTriggerHwService.cpp
+++ b/services/soundtrigger/SoundTriggerHwService.cpp
@@ -32,17 +32,16 @@
 #include <binder/IServiceManager.h>
 #include <binder/MemoryBase.h>
 #include <binder/MemoryHeapBase.h>
-#include <hardware/sound_trigger.h>
+#include <system/sound_trigger.h>
 #include <ServiceUtilities.h>
 #include "SoundTriggerHwService.h"
 
-namespace android {
-
 #ifdef SOUND_TRIGGER_USE_STUB_MODULE
 #define HW_MODULE_PREFIX "stub"
 #else
 #define HW_MODULE_PREFIX "primary"
 #endif
+namespace android {
 
 SoundTriggerHwService::SoundTriggerHwService()
     : BnSoundTriggerHwService(),
@@ -54,30 +53,17 @@
 
 void SoundTriggerHwService::onFirstRef()
 {
-    const hw_module_t *mod;
     int rc;
-    sound_trigger_hw_device *dev;
 
-    rc = hw_get_module_by_class(SOUND_TRIGGER_HARDWARE_MODULE_ID, HW_MODULE_PREFIX, &mod);
-    if (rc != 0) {
-        ALOGE("couldn't load sound trigger module %s.%s (%s)",
-              SOUND_TRIGGER_HARDWARE_MODULE_ID, HW_MODULE_PREFIX, strerror(-rc));
-        return;
-    }
-    rc = sound_trigger_hw_device_open(mod, &dev);
-    if (rc != 0) {
-        ALOGE("couldn't open sound trigger hw device in %s.%s (%s)",
-              SOUND_TRIGGER_HARDWARE_MODULE_ID, HW_MODULE_PREFIX, strerror(-rc));
-        return;
-    }
-    if (dev->common.version < SOUND_TRIGGER_DEVICE_API_VERSION_1_0 ||
-        dev->common.version > SOUND_TRIGGER_DEVICE_API_VERSION_CURRENT) {
-        ALOGE("wrong sound trigger hw device version %04x", dev->common.version);
-        return;
-    }
+    sp<SoundTriggerHalInterface> halInterface =
+            SoundTriggerHalInterface::connectModule(HW_MODULE_PREFIX);
 
+    if (halInterface == 0) {
+        ALOGW("could not connect to HAL");
+        return;
+    }
     sound_trigger_module_descriptor descriptor;
-    rc = dev->get_properties(dev, &descriptor.properties);
+    rc = halInterface->getProperties(&descriptor.properties);
     if (rc != 0) {
         ALOGE("could not read implementation properties");
         return;
@@ -87,8 +73,7 @@
     ALOGI("loaded default module %s, handle %d", descriptor.properties.description,
                                                  descriptor.handle);
 
-    sp<ISoundTriggerClient> client;
-    sp<Module> module = new Module(this, dev, descriptor, client);
+    sp<Module> module = new Module(this, halInterface, descriptor);
     mModules.add(descriptor.handle, module);
     mCallbackThread = new CallbackThread(this);
 }
@@ -98,9 +83,6 @@
     if (mCallbackThread != 0) {
         mCallbackThread->exit();
     }
-    for (size_t i = 0; i < mModules.size(); i++) {
-        sound_trigger_hw_device_close(mModules.valueAt(i)->hwDevice());
-    }
 }
 
 status_t SoundTriggerHwService::listModules(struct sound_trigger_module_descriptor *modules,
@@ -143,11 +125,13 @@
     }
     sp<Module> module = mModules.valueAt(index);
 
-    module->setClient(client);
-    IInterface::asBinder(client)->linkToDeath(module);
-    moduleInterface = module;
+    sp<ModuleClient> moduleClient = module->addClient(client);
+    if (moduleClient == 0) {
+        return NO_INIT;
+    }
 
-    module->setCaptureState_l(mCaptureState);
+    moduleClient->setCaptureState_l(mCaptureState);
+    moduleInterface = moduleClient;
 
     return NO_ERROR;
 }
@@ -164,14 +148,6 @@
 }
 
 
-void SoundTriggerHwService::detachModule(const sp<Module>& module)
-{
-    ALOGV("detachModule");
-    AutoMutex lock(mServiceLock);
-    module->clearClient();
-}
-
-
 static const int kDumpLockRetries = 50;
 static const int kDumpLockSleep = 60000;
 
@@ -293,8 +269,10 @@
          return;
      }
 
-     sendCallbackEvent_l(new CallbackEvent(CallbackEvent::TYPE_RECOGNITION,
-                                                  eventMemory, strongModule));
+    sp<CallbackEvent> callbackEvent = new CallbackEvent(CallbackEvent::TYPE_RECOGNITION,
+                                                        eventMemory);
+    callbackEvent->setModule(strongModule);
+    sendCallbackEvent_l(callbackEvent);
 }
 
 // static
@@ -346,8 +324,10 @@
     if (strongModule == 0) {
         return;
     }
-    sendCallbackEvent_l(new CallbackEvent(CallbackEvent::TYPE_SOUNDMODEL,
-                                                 eventMemory, strongModule));
+    sp<CallbackEvent> callbackEvent = new CallbackEvent(CallbackEvent::TYPE_SOUNDMODEL,
+                                                        eventMemory);
+    callbackEvent->setModule(strongModule);
+    sendCallbackEvent_l(callbackEvent);
 }
 
 
@@ -383,8 +363,23 @@
     if (strongModule == 0) {
         return;
     }
-    sendCallbackEvent_l(new CallbackEvent(CallbackEvent::TYPE_SERVICE_STATE,
-                                                 eventMemory, strongModule));
+    sp<CallbackEvent> callbackEvent = new CallbackEvent(CallbackEvent::TYPE_SERVICE_STATE,
+                                                        eventMemory);
+    callbackEvent->setModule(strongModule);
+    sendCallbackEvent_l(callbackEvent);
+}
+
+void SoundTriggerHwService::sendServiceStateEvent_l(sound_trigger_service_state_t state,
+                                                    ModuleClient *moduleClient)
+{
+    sp<IMemory> eventMemory = prepareServiceStateEvent_l(state);
+    if (eventMemory == 0) {
+        return;
+    }
+    sp<CallbackEvent> callbackEvent = new CallbackEvent(CallbackEvent::TYPE_SERVICE_STATE,
+                                                        eventMemory);
+    callbackEvent->setModuleClient(moduleClient);
+    sendCallbackEvent_l(callbackEvent);
 }
 
 // call with mServiceLock held
@@ -397,14 +392,25 @@
 {
     ALOGV("onCallbackEvent");
     sp<Module> module;
+    sp<ModuleClient> moduleClient;
     {
         AutoMutex lock(mServiceLock);
+        //CallbackEvent is either for Module or ModuleClient
         module = event->mModule.promote();
         if (module == 0) {
-            return;
+            moduleClient = event->mModuleClient.promote();
+            if (moduleClient == 0) {
+                return;
+            }
         }
     }
-    module->onCallbackEvent(event);
+    if (module != 0) {
+        ALOGV("onCallbackEvent for module");
+        module->onCallbackEvent(event);
+    } else if (moduleClient != 0) {
+        ALOGV("onCallbackEvent for moduleClient");
+        moduleClient->onCallbackEvent(event);
+    }
     {
         AutoMutex lock(mServiceLock);
         // clear now to execute with mServiceLock locked
@@ -474,9 +480,8 @@
     mCallbackCond.signal();
 }
 
-SoundTriggerHwService::CallbackEvent::CallbackEvent(event_type type, sp<IMemory> memory,
-                                                    wp<Module> module)
-    : mType(type), mMemory(memory), mModule(module)
+SoundTriggerHwService::CallbackEvent::CallbackEvent(event_type type, sp<IMemory> memory)
+    : mType(type), mMemory(memory)
 {
 }
 
@@ -489,52 +494,82 @@
 #define LOG_TAG "SoundTriggerHwService::Module"
 
 SoundTriggerHwService::Module::Module(const sp<SoundTriggerHwService>& service,
-                                      sound_trigger_hw_device* hwDevice,
-                                      sound_trigger_module_descriptor descriptor,
-                                      const sp<ISoundTriggerClient>& client)
- : mService(service), mHwDevice(hwDevice), mDescriptor(descriptor),
-   mClient(client), mServiceState(SOUND_TRIGGER_STATE_NO_INIT)
+                                      const sp<SoundTriggerHalInterface>& halInterface,
+                                      sound_trigger_module_descriptor descriptor)
+ : mService(service), mHalInterface(halInterface), mDescriptor(descriptor),
+   mServiceState(SOUND_TRIGGER_STATE_NO_INIT)
 {
 }
 
 SoundTriggerHwService::Module::~Module() {
+    mModuleClients.clear();
 }
 
-void SoundTriggerHwService::Module::detach() {
-    ALOGV("detach()");
-    if (!captureHotwordAllowed()) {
-        return;
-    }
-    {
-        AutoMutex lock(mLock);
-        for (size_t i = 0; i < mModels.size(); i++) {
-            sp<Model> model = mModels.valueAt(i);
-            ALOGV("detach() unloading model %d", model->mHandle);
-            if (model->mState == Model::STATE_ACTIVE) {
-                mHwDevice->stop_recognition(mHwDevice, model->mHandle);
-            }
-            mHwDevice->unload_sound_model(mHwDevice, model->mHandle);
+sp<SoundTriggerHwService::ModuleClient>
+SoundTriggerHwService::Module::addClient(const sp<ISoundTriggerClient>& client)
+{
+    AutoMutex lock(mLock);
+    sp<ModuleClient> moduleClient;
+
+    for (size_t i = 0; i < mModuleClients.size(); i++) {
+        if (mModuleClients[i]->client() == client) {
+            // Client already present, reuse client
+            return moduleClient;
         }
-        mModels.clear();
     }
-    if (mClient != 0) {
-        IInterface::asBinder(mClient)->unlinkToDeath(this);
+    moduleClient = new ModuleClient(this, client);
+
+    ALOGV("addClient() client %p", moduleClient.get());
+    mModuleClients.add(moduleClient);
+
+    return moduleClient;
+}
+
+void SoundTriggerHwService::Module::detach(const sp<ModuleClient>& moduleClient)
+{
+    ALOGV("Module::detach()");
+    AutoMutex lock(mLock);
+    ssize_t index = -1;
+
+    for (size_t i = 0; i < mModuleClients.size(); i++) {
+        if (mModuleClients[i] == moduleClient) {
+            index = i;
+            break;
+        }
     }
-    sp<SoundTriggerHwService> service = mService.promote();
-    if (service == 0) {
+    if (index == -1) {
         return;
     }
-    service->detachModule(this);
+
+    ALOGV("remove client %p", moduleClient.get());
+    mModuleClients.removeAt(index);
+
+    // Iterate in reverse order as models are removed from list inside the loop.
+    for (size_t i = mModels.size(); i > 0; i--) {
+        sp<Model> model = mModels.valueAt(i - 1);
+        if (moduleClient == model->mModuleClient) {
+            mModels.removeItemsAt(i - 1);
+            ALOGV("detach() unloading model %d", model->mHandle);
+            if (mHalInterface != 0) {
+                if (model->mState == Model::STATE_ACTIVE) {
+                    mHalInterface->stopRecognition(model->mHandle);
+                }
+                mHalInterface->unloadSoundModel(model->mHandle);
+            }
+            AudioSystem::releaseSoundTriggerSession(model->mCaptureSession);
+            mHalInterface->unloadSoundModel(model->mHandle);
+        }
+    }
 }
 
 status_t SoundTriggerHwService::Module::loadSoundModel(const sp<IMemory>& modelMemory,
-                                sound_model_handle_t *handle)
+                                                       sp<ModuleClient> moduleClient,
+                                                       sound_model_handle_t *handle)
 {
     ALOGV("loadSoundModel() handle");
-    if (!captureHotwordAllowed()) {
-        return PERMISSION_DENIED;
+    if (mHalInterface == 0) {
+        return NO_INIT;
     }
-
     if (modelMemory == 0 || modelMemory->pointer() == NULL) {
         ALOGE("loadSoundModel() modelMemory is 0 or has NULL pointer()");
         return BAD_VALUE;
@@ -566,7 +601,7 @@
         return INVALID_OPERATION;
     }
 
-    status_t status = mHwDevice->load_sound_model(mHwDevice, sound_model,
+    status_t status = mHalInterface->loadSoundModel(sound_model,
                                                   SoundTriggerHwService::soundModelCallback,
                                                   this, handle);
 
@@ -582,7 +617,8 @@
         return status;
     }
 
-    sp<Model> model = new Model(*handle, session, ioHandle, device, sound_model->type);
+    sp<Model> model = new Model(*handle, session, ioHandle, device, sound_model->type,
+                                moduleClient);
     mModels.replaceValueFor(*handle, model);
 
     return status;
@@ -591,16 +627,15 @@
 status_t SoundTriggerHwService::Module::unloadSoundModel(sound_model_handle_t handle)
 {
     ALOGV("unloadSoundModel() model handle %d", handle);
-    if (!captureHotwordAllowed()) {
-        return PERMISSION_DENIED;
-    }
-
     AutoMutex lock(mLock);
     return unloadSoundModel_l(handle);
 }
 
 status_t SoundTriggerHwService::Module::unloadSoundModel_l(sound_model_handle_t handle)
 {
+    if (mHalInterface == 0) {
+        return NO_INIT;
+    }
     ssize_t index = mModels.indexOfKey(handle);
     if (index < 0) {
         return BAD_VALUE;
@@ -608,21 +643,20 @@
     sp<Model> model = mModels.valueAt(index);
     mModels.removeItem(handle);
     if (model->mState == Model::STATE_ACTIVE) {
-        mHwDevice->stop_recognition(mHwDevice, model->mHandle);
+        mHalInterface->stopRecognition(model->mHandle);
         model->mState = Model::STATE_IDLE;
     }
     AudioSystem::releaseSoundTriggerSession(model->mCaptureSession);
-    return mHwDevice->unload_sound_model(mHwDevice, handle);
+    return mHalInterface->unloadSoundModel(handle);
 }
 
 status_t SoundTriggerHwService::Module::startRecognition(sound_model_handle_t handle,
                                  const sp<IMemory>& dataMemory)
 {
     ALOGV("startRecognition() model handle %d", handle);
-    if (!captureHotwordAllowed()) {
-        return PERMISSION_DENIED;
+    if (mHalInterface == 0) {
+        return NO_INIT;
     }
-
     if (dataMemory == 0 || dataMemory->pointer() == NULL) {
         ALOGE("startRecognition() dataMemory is 0 or has NULL pointer()");
         return BAD_VALUE;
@@ -657,7 +691,7 @@
     //TODO: get capture handle and device from audio policy service
     config->capture_handle = model->mCaptureIOHandle;
     config->capture_device = model->mCaptureDevice;
-    status_t status = mHwDevice->start_recognition(mHwDevice, handle, config,
+    status_t status = mHalInterface->startRecognition(handle, config,
                                         SoundTriggerHwService::recognitionCallback,
                                         this);
 
@@ -672,10 +706,9 @@
 status_t SoundTriggerHwService::Module::stopRecognition(sound_model_handle_t handle)
 {
     ALOGV("stopRecognition() model handle %d", handle);
-    if (!captureHotwordAllowed()) {
-        return PERMISSION_DENIED;
+    if (mHalInterface == 0) {
+        return NO_INIT;
     }
-
     AutoMutex lock(mLock);
     sp<Model> model = getModel(handle);
     if (model == 0) {
@@ -685,12 +718,11 @@
     if (model->mState != Model::STATE_ACTIVE) {
         return INVALID_OPERATION;
     }
-    mHwDevice->stop_recognition(mHwDevice, handle);
+    mHalInterface->stopRecognition(handle);
     model->mState = Model::STATE_IDLE;
     return NO_ERROR;
 }
 
-
 void SoundTriggerHwService::Module::onCallbackEvent(const sp<CallbackEvent>& event)
 {
     ALOGV("onCallbackEvent type %d", event->mType);
@@ -700,8 +732,8 @@
     if (eventMemory == 0 || eventMemory->pointer() == NULL) {
         return;
     }
-    if (mClient == 0) {
-        ALOGI("%s mClient == 0", __func__);
+    if (mModuleClients.isEmpty()) {
+        ALOGI("%s no clients", __func__);
         return;
     }
 
@@ -724,7 +756,7 @@
 
             recognitionEvent->capture_session = model->mCaptureSession;
             model->mState = Model::STATE_IDLE;
-            client = mClient;
+            client = model->mModuleClient->client();
         }
         if (client != 0) {
             client->onRecognitionEvent(eventMemory);
@@ -741,20 +773,24 @@
                 ALOGW("%s model == 0", __func__);
                 return;
             }
-            client = mClient;
+            client = model->mModuleClient->client();
         }
         if (client != 0) {
             client->onSoundModelEvent(eventMemory);
         }
     } break;
     case CallbackEvent::TYPE_SERVICE_STATE: {
-        sp<ISoundTriggerClient> client;
+        Vector< sp<ISoundTriggerClient> > clients;
         {
             AutoMutex lock(mLock);
-            client = mClient;
+            for (size_t i = 0; i < mModuleClients.size(); i++) {
+                if (mModuleClients[i] != 0) {
+                    clients.add(mModuleClients[i]->client());
+                }
+            }
         }
-        if (client != 0) {
-            client->onServiceStateChange(eventMemory);
+        for (size_t i = 0; i < clients.size(); i++) {
+            clients[i]->onServiceStateChange(eventMemory);
         }
     } break;
     default:
@@ -773,12 +809,6 @@
     return model;
 }
 
-void SoundTriggerHwService::Module::binderDied(
-    const wp<IBinder> &who __unused) {
-    ALOGW("client binder died for module %d", mDescriptor.handle);
-    detach();
-}
-
 // Called with mServiceLock held
 void SoundTriggerHwService::Module::setCaptureState_l(bool active)
 {
@@ -808,18 +838,13 @@
         }
 
         const bool supports_stop_all =
-            (mHwDevice->common.version >= SOUND_TRIGGER_DEVICE_API_VERSION_1_1 &&
-             mHwDevice->stop_all_recognitions);
-
-        if (supports_stop_all) {
-            mHwDevice->stop_all_recognitions(mHwDevice);
-        }
+                (mHalInterface != 0) && (mHalInterface->stopAllRecognitions() == ENOSYS);
 
         for (size_t i = 0; i < mModels.size(); i++) {
             sp<Model> model = mModels.valueAt(i);
             if (model->mState == Model::STATE_ACTIVE) {
-                if (!supports_stop_all) {
-                    mHwDevice->stop_recognition(mHwDevice, model->mHandle);
+                if (mHalInterface != 0 && !supports_stop_all) {
+                    mHalInterface->stopRecognition(model->mHandle);
                 }
                 // keep model in ACTIVE state so that event is processed by onCallbackEvent()
                 if (model->mType == SOUND_MODEL_TYPE_KEYPHRASE) {
@@ -867,8 +892,10 @@
     }
 
     for (size_t i = 0; i < events.size(); i++) {
-        service->sendCallbackEvent_l(new CallbackEvent(CallbackEvent::TYPE_RECOGNITION, events[i],
-                                                     this));
+        sp<CallbackEvent> callbackEvent = new CallbackEvent(CallbackEvent::TYPE_RECOGNITION,
+                                                            events[i]);
+        callbackEvent->setModule(this);
+        service->sendCallbackEvent_l(callbackEvent);
     }
 
 exit:
@@ -878,17 +905,173 @@
 
 SoundTriggerHwService::Model::Model(sound_model_handle_t handle, audio_session_t session,
                                     audio_io_handle_t ioHandle, audio_devices_t device,
-                                    sound_trigger_sound_model_type_t type) :
+                                    sound_trigger_sound_model_type_t type,
+                                    sp<ModuleClient>& moduleClient) :
     mHandle(handle), mState(STATE_IDLE), mCaptureSession(session),
-    mCaptureIOHandle(ioHandle), mCaptureDevice(device), mType(type)
+    mCaptureIOHandle(ioHandle), mCaptureDevice(device), mType(type),
+    mModuleClient(moduleClient)
 {
-
 }
 
-status_t SoundTriggerHwService::Module::dump(int fd __unused,
-                                             const Vector<String16>& args __unused) {
+#undef LOG_TAG
+#define LOG_TAG "SoundTriggerHwService::ModuleClient"
+
+SoundTriggerHwService::ModuleClient::ModuleClient(const sp<Module>& module,
+                                                  const sp<ISoundTriggerClient>& client)
+ : mModule(module), mClient(client)
+{
+}
+
+void SoundTriggerHwService::ModuleClient::onFirstRef()
+{
+    sp<IBinder> binder = IInterface::asBinder(mClient);
+    if (binder != 0) {
+        binder->linkToDeath(this);
+    }
+}
+
+SoundTriggerHwService::ModuleClient::~ModuleClient()
+{
+}
+
+status_t SoundTriggerHwService::ModuleClient::dump(int fd __unused,
+                                                   const Vector<String16>& args __unused) {
     String8 result;
     return NO_ERROR;
 }
 
+void SoundTriggerHwService::ModuleClient::detach() {
+    ALOGV("detach()");
+    if (!captureHotwordAllowed()) {
+        return;
+    }
+
+    {
+        AutoMutex lock(mLock);
+        if (mClient != 0) {
+            IInterface::asBinder(mClient)->unlinkToDeath(this);
+            mClient.clear();
+        }
+    }
+
+    sp<Module> module = mModule.promote();
+    if (module == 0) {
+        return;
+    }
+    module->detach(this);
+}
+
+status_t SoundTriggerHwService::ModuleClient::loadSoundModel(const sp<IMemory>& modelMemory,
+                                sound_model_handle_t *handle)
+{
+    ALOGV("loadSoundModel() handle");
+    if (!captureHotwordAllowed()) {
+        return PERMISSION_DENIED;
+    }
+
+    sp<Module> module = mModule.promote();
+    if (module == 0) {
+        return NO_INIT;
+    }
+    return module->loadSoundModel(modelMemory, this, handle);
+}
+
+status_t SoundTriggerHwService::ModuleClient::unloadSoundModel(sound_model_handle_t handle)
+{
+    ALOGV("unloadSoundModel() model handle %d", handle);
+    if (!captureHotwordAllowed()) {
+        return PERMISSION_DENIED;
+    }
+
+    sp<Module> module = mModule.promote();
+    if (module == 0) {
+        return NO_INIT;
+    }
+    return module->unloadSoundModel(handle);
+}
+
+status_t SoundTriggerHwService::ModuleClient::startRecognition(sound_model_handle_t handle,
+                                 const sp<IMemory>& dataMemory)
+{
+    ALOGV("startRecognition() model handle %d", handle);
+    if (!captureHotwordAllowed()) {
+        return PERMISSION_DENIED;
+    }
+
+    sp<Module> module = mModule.promote();
+    if (module == 0) {
+        return NO_INIT;
+    }
+    return module->startRecognition(handle, dataMemory);
+}
+
+status_t SoundTriggerHwService::ModuleClient::stopRecognition(sound_model_handle_t handle)
+{
+    ALOGV("stopRecognition() model handle %d", handle);
+    if (!captureHotwordAllowed()) {
+        return PERMISSION_DENIED;
+    }
+
+    sp<Module> module = mModule.promote();
+    if (module == 0) {
+        return NO_INIT;
+    }
+    return module->stopRecognition(handle);
+}
+
+void SoundTriggerHwService::ModuleClient::setCaptureState_l(bool active)
+{
+    ALOGV("ModuleClient::setCaptureState_l %d", active);
+    sp<SoundTriggerHwService> service;
+    sound_trigger_service_state_t state;
+
+    sp<Module> module = mModule.promote();
+    if (module == 0) {
+        return;
+    }
+    {
+        AutoMutex lock(mLock);
+        state = (active && !module->isConcurrentCaptureAllowed()) ?
+                                        SOUND_TRIGGER_STATE_DISABLED : SOUND_TRIGGER_STATE_ENABLED;
+
+        service = module->service().promote();
+        if (service == 0) {
+            return;
+        }
+    }
+    service->sendServiceStateEvent_l(state, this);
+}
+
+void SoundTriggerHwService::ModuleClient::onCallbackEvent(const sp<CallbackEvent>& event)
+{
+    ALOGV("ModuleClient onCallbackEvent type %d", event->mType);
+
+    sp<IMemory> eventMemory = event->mMemory;
+
+    if (eventMemory == 0 || eventMemory->pointer() == NULL) {
+        return;
+    }
+
+    switch (event->mType) {
+    case CallbackEvent::TYPE_SERVICE_STATE: {
+        sp<ISoundTriggerClient> client;
+        {
+            AutoMutex lock(mLock);
+            client = mClient;
+        }
+        if (client !=0 ) {
+            client->onServiceStateChange(eventMemory);
+        }
+    } break;
+    default:
+        LOG_ALWAYS_FATAL("onCallbackEvent unknown event type %d", event->mType);
+    }
+}
+
+void SoundTriggerHwService::ModuleClient::binderDied(
+    const wp<IBinder> &who __unused) {
+    ALOGW("client binder died for client %p", this);
+    detach();
+}
+
 }; // namespace android
diff --git a/services/soundtrigger/SoundTriggerHwService.h b/services/soundtrigger/SoundTriggerHwService.h
index 13a577a..60ebb35 100644
--- a/services/soundtrigger/SoundTriggerHwService.h
+++ b/services/soundtrigger/SoundTriggerHwService.h
@@ -26,7 +26,7 @@
 #include <soundtrigger/ISoundTrigger.h>
 #include <soundtrigger/ISoundTriggerClient.h>
 #include <system/sound_trigger.h>
-#include <hardware/sound_trigger.h>
+#include "SoundTriggerHalInterface.h"
 
 namespace android {
 
@@ -39,6 +39,7 @@
     friend class BinderService<SoundTriggerHwService>;
 public:
     class Module;
+    class ModuleClient;
 
     static char const* getServiceName() { return "media.sound_trigger_hw"; }
 
@@ -69,7 +70,8 @@
         };
 
         Model(sound_model_handle_t handle, audio_session_t session, audio_io_handle_t ioHandle,
-              audio_devices_t device, sound_trigger_sound_model_type_t type);
+              audio_devices_t device, sound_trigger_sound_model_type_t type,
+              sp<ModuleClient>& moduleClient);
         ~Model() {}
 
         sound_model_handle_t    mHandle;
@@ -79,6 +81,7 @@
         audio_devices_t         mCaptureDevice;
         sound_trigger_sound_model_type_t mType;
         struct sound_trigger_recognition_config mConfig;
+        sp<ModuleClient>        mModuleClient;
     };
 
     class CallbackEvent : public RefBase {
@@ -88,27 +91,76 @@
             TYPE_SOUNDMODEL,
             TYPE_SERVICE_STATE,
         } event_type;
-        CallbackEvent(event_type type, sp<IMemory> memory, wp<Module> module);
+        CallbackEvent(event_type type, sp<IMemory> memory);
 
         virtual             ~CallbackEvent();
 
+        void setModule(wp<Module> module) { mModule = module; }
+        void setModuleClient(wp<ModuleClient> moduleClient) { mModuleClient = moduleClient; }
+
         event_type mType;
         sp<IMemory> mMemory;
         wp<Module> mModule;
+        wp<ModuleClient> mModuleClient;
     };
 
-    class Module : public virtual RefBase,
-                   public BnSoundTrigger,
-                   public IBinder::DeathRecipient     {
+    class Module : public RefBase {
     public:
 
        Module(const sp<SoundTriggerHwService>& service,
-              sound_trigger_hw_device* hwDevice,
-              sound_trigger_module_descriptor descriptor,
-              const sp<ISoundTriggerClient>& client);
+              const sp<SoundTriggerHalInterface>& halInterface,
+              sound_trigger_module_descriptor descriptor);
 
        virtual ~Module();
 
+       virtual status_t loadSoundModel(const sp<IMemory>& modelMemory,
+                                       sp<ModuleClient> moduleClient,
+                                       sound_model_handle_t *handle);
+
+       virtual status_t unloadSoundModel(sound_model_handle_t handle);
+
+       virtual status_t startRecognition(sound_model_handle_t handle,
+                                         const sp<IMemory>& dataMemory);
+       virtual status_t stopRecognition(sound_model_handle_t handle);
+
+       sp<SoundTriggerHalInterface> halInterface() const { return mHalInterface; }
+       struct sound_trigger_module_descriptor descriptor() { return mDescriptor; }
+       wp<SoundTriggerHwService> service() const { return mService; }
+       bool isConcurrentCaptureAllowed() const { return mDescriptor.properties.concurrent_capture; }
+
+       sp<Model> getModel(sound_model_handle_t handle);
+
+       void setCaptureState_l(bool active);
+
+       sp<ModuleClient> addClient(const sp<ISoundTriggerClient>& client);
+
+       void detach(const sp<ModuleClient>& moduleClient);
+
+       void onCallbackEvent(const sp<CallbackEvent>& event);
+
+    private:
+
+        status_t unloadSoundModel_l(sound_model_handle_t handle);
+
+        Mutex                                  mLock;
+        wp<SoundTriggerHwService>              mService;
+        sp<SoundTriggerHalInterface>           mHalInterface;
+        struct sound_trigger_module_descriptor mDescriptor;
+        Vector< sp<ModuleClient> >             mModuleClients;
+        DefaultKeyedVector< sound_model_handle_t, sp<Model> >     mModels;
+        sound_trigger_service_state_t          mServiceState;
+    }; // class Module
+
+    class ModuleClient : public virtual RefBase,
+                         public BnSoundTrigger,
+                         public IBinder::DeathRecipient {
+    public:
+
+       ModuleClient(const sp<Module>& module,
+              const sp<ISoundTriggerClient>& client);
+
+       virtual ~ModuleClient();
+
        virtual void detach();
 
        virtual status_t loadSoundModel(const sp<IMemory>& modelMemory,
@@ -122,36 +174,23 @@
 
        virtual status_t dump(int fd, const Vector<String16>& args);
 
-
-       sound_trigger_hw_device *hwDevice() const { return mHwDevice; }
-       struct sound_trigger_module_descriptor descriptor() { return mDescriptor; }
-       void setClient(const sp<ISoundTriggerClient>& client) { mClient = client; }
-       void clearClient() { mClient.clear(); }
-       sp<ISoundTriggerClient> client() const { return mClient; }
-       wp<SoundTriggerHwService> service() const { return mService; }
-
-       void onCallbackEvent(const sp<CallbackEvent>& event);
-
-       sp<Model> getModel(sound_model_handle_t handle);
-
-       void setCaptureState_l(bool active);
+       virtual void onFirstRef();
 
        // IBinder::DeathRecipient implementation
        virtual void        binderDied(const wp<IBinder> &who);
 
+       void onCallbackEvent(const sp<CallbackEvent>& event);
+
+       void setCaptureState_l(bool active);
+
+       sp<ISoundTriggerClient> client() const { return mClient; }
+
     private:
 
-       status_t unloadSoundModel_l(sound_model_handle_t handle);
-
-
-        Mutex                                  mLock;
-        wp<SoundTriggerHwService>              mService;
-        struct sound_trigger_hw_device*        mHwDevice;
-        struct sound_trigger_module_descriptor mDescriptor;
-        sp<ISoundTriggerClient>                mClient;
-        DefaultKeyedVector< sound_model_handle_t, sp<Model> >     mModels;
-        sound_trigger_service_state_t          mServiceState;
-    }; // class Module
+        mutable Mutex               mLock;
+        wp<Module>                  mModule;
+        sp<ISoundTriggerClient>     mClient;
+    }; // class ModuleClient
 
     class CallbackThread : public Thread {
     public:
@@ -176,8 +215,6 @@
         Vector< sp<CallbackEvent> > mEventQueue;
     };
 
-           void detachModule(const sp<Module>& module);
-
     static void recognitionCallback(struct sound_trigger_recognition_event *event, void *cookie);
            sp<IMemory> prepareRecognitionEvent_l(struct sound_trigger_recognition_event *event);
            void sendRecognitionEvent(struct sound_trigger_recognition_event *event, Module *module);
@@ -188,6 +225,8 @@
 
            sp<IMemory> prepareServiceStateEvent_l(sound_trigger_service_state_t state);
            void sendServiceStateEvent_l(sound_trigger_service_state_t state, Module *module);
+           void sendServiceStateEvent_l(sound_trigger_service_state_t state,
+                                        ModuleClient *moduleClient);
 
            void sendCallbackEvent_l(const sp<CallbackEvent>& event);
            void onCallbackEvent(const sp<CallbackEvent>& event);