Merge "Camera: Set focal length for external camera if the information is provided"
diff --git a/PREUPLOAD.cfg b/PREUPLOAD.cfg
new file mode 100644
index 0000000..e63185d
--- /dev/null
+++ b/PREUPLOAD.cfg
@@ -0,0 +1,2 @@
+[Hook Scripts]
+mainline_hook = tools/mainline_hook.sh ${PREUPLOAD_COMMIT} "."
diff --git a/apex/Android.bp b/apex/Android.bp
index 42a620b..73dc264 100644
--- a/apex/Android.bp
+++ b/apex/Android.bp
@@ -41,6 +41,8 @@
 
     // Use a custom AndroidManifest.xml used for API targeting.
     androidManifest: ":com.android.media-androidManifest",
+
+    legacy_android10_support: true,
 }
 
 apex {
@@ -76,6 +78,8 @@
 
     // Use a custom AndroidManifest.xml used for API targeting.
     androidManifest: ":com.android.media.swcodec-androidManifest",
+
+    legacy_android10_support: true,
 }
 
 prebuilt_etc {
diff --git a/apex/ld.config.txt b/apex/ld.config.txt
index ec8f049..1c44e65 100644
--- a/apex/ld.config.txt
+++ b/apex/ld.config.txt
@@ -27,7 +27,7 @@
 # TODO: replace the following when apex has a way to auto-generate this list
 # namespace.default.link.platform.shared_libs  = %LLNDK_LIBRARIES%
 # namespace.default.link.platform.shared_libs += %SANITIZER_RUNTIME_LIBRARIES%
-namespace.default.link.platform.shared_libs = libEGL.so:libGLESv1_CM.so:libGLESv2.so:libGLESv3.so:libRS.so:libandroid_net.so:libc.so:libcgrouprc.so:libclang_rt.asan-aarch64-android.so:libclang_rt.asan-arm-android.so:libclang_rt.hwasan-aarch64-android.so:libclang_rt.asan-i686-android.so:libclang_rt.asan-x86_64-android.so:libdl.so:libft2.so:liblog.so:libm.so:libmediandk.so:libnativewindow.so:libneuralnetworks.so:libsync.so:libvndksupport.so:libdl_android.so:libvulkan.so
+namespace.default.link.platform.shared_libs = libEGL.so:libGLESv1_CM.so:libGLESv2.so:libGLESv3.so:libRS.so:libandroid_net.so:libc.so:libcgrouprc.so:libclang_rt.asan-aarch64-android.so:libclang_rt.asan-arm-android.so:libclang_rt.hwasan-aarch64-android.so:libclang_rt.asan-i686-android.so:libclang_rt.asan-x86_64-android.so:libdl.so:libft2.so:liblog.so:libm.so:libmediandk.so:libnativewindow.so:libneuralnetworks.so:libsync.so:libvndksupport.so:libdl_android.so:libvulkan.so:libbinder_ndk.so
 
 ###############################################################################
 # "platform" namespace
@@ -132,7 +132,7 @@
 # TODO: replace the following when apex has a way to auto-generate this list
 # namespace.sphal.link.platform.shared_libs  = %LLNDK_LIBRARIES%
 # namespace.sphal.link.platform.shared_libs += %SANITIZER_RUNTIME_LIBRARIES%
-namespace.sphal.link.platform.shared_libs = libEGL.so:libGLESv1_CM.so:libGLESv2.so:libGLESv3.so:libRS.so:libandroid_net.so:libc.so:libcgrouprc.so:libclang_rt.asan-aarch64-android.so:libclang_rt.asan-arm-android.so:libclang_rt.hwasan-aarch64-android.so:libclang_rt.asan-i686-android.so:libclang_rt.asan-x86_64-android.so:libdl.so:libft2.so:liblog.so:libm.so:libmediandk.so:libnativewindow.so:libneuralnetworks.so:libsync.so:libvndksupport.so:libvulkan.so
+namespace.sphal.link.platform.shared_libs = libEGL.so:libGLESv1_CM.so:libGLESv2.so:libGLESv3.so:libRS.so:libandroid_net.so:libc.so:libcgrouprc.so:libclang_rt.asan-aarch64-android.so:libclang_rt.asan-arm-android.so:libclang_rt.hwasan-aarch64-android.so:libclang_rt.asan-i686-android.so:libclang_rt.asan-x86_64-android.so:libdl.so:libft2.so:liblog.so:libm.so:libmediandk.so:libnativewindow.so:libneuralnetworks.so:libsync.so:libvndksupport.so:libvulkan.so:libbinder_ndk.so
 
 # Add a link for libz.so which is llndk on devices where VNDK is not enforced.
 namespace.sphal.link.platform.shared_libs += libz.so
diff --git a/camera/Android.bp b/camera/Android.bp
index b288bcf..ea7259a 100644
--- a/camera/Android.bp
+++ b/camera/Android.bp
@@ -85,6 +85,7 @@
         "aidl/android/hardware/ICameraServiceProxy.aidl",
         "aidl/android/hardware/camera2/ICameraDeviceCallbacks.aidl",
         "aidl/android/hardware/camera2/ICameraDeviceUser.aidl",
+        "aidl/android/hardware/camera2/ICameraOfflineSession.aidl",
     ],
     path: "aidl",
 }
diff --git a/camera/CameraMetadata.cpp b/camera/CameraMetadata.cpp
index 92fe84b..15c295e 100644
--- a/camera/CameraMetadata.cpp
+++ b/camera/CameraMetadata.cpp
@@ -17,7 +17,9 @@
 // #define LOG_NDEBUG 0
 
 #define LOG_TAG "Camera2-Metadata"
+#define ATRACE_TAG ATRACE_TAG_CAMERA
 #include <utils/Log.h>
+#include <utils/Trace.h>
 #include <utils/Errors.h>
 
 #include <binder/Parcel.h>
@@ -38,11 +40,13 @@
 CameraMetadata::CameraMetadata(size_t entryCapacity, size_t dataCapacity) :
         mLocked(false)
 {
+    ATRACE_CALL();
     mBuffer = allocate_camera_metadata(entryCapacity, dataCapacity);
 }
 
 CameraMetadata::CameraMetadata(const CameraMetadata &other) :
         mLocked(false) {
+    ATRACE_CALL();
     mBuffer = clone_camera_metadata(other.mBuffer);
 }
 
@@ -104,6 +108,7 @@
 }
 
 void CameraMetadata::clear() {
+    ATRACE_CALL();
     if (mLocked) {
         ALOGE("%s: CameraMetadata is locked", __FUNCTION__);
         return;
@@ -115,6 +120,7 @@
 }
 
 void CameraMetadata::acquire(camera_metadata_t *buffer) {
+    ATRACE_CALL();
     if (mLocked) {
         ALOGE("%s: CameraMetadata is locked", __FUNCTION__);
         return;
@@ -128,6 +134,7 @@
 }
 
 void CameraMetadata::acquire(CameraMetadata &other) {
+    ATRACE_CALL();
     if (mLocked) {
         ALOGE("%s: CameraMetadata is locked", __FUNCTION__);
         return;
@@ -136,10 +143,12 @@
 }
 
 status_t CameraMetadata::append(const CameraMetadata &other) {
+    ATRACE_CALL();
     return append(other.mBuffer);
 }
 
 status_t CameraMetadata::append(const camera_metadata_t* other) {
+    ATRACE_CALL();
     if (mLocked) {
         ALOGE("%s: CameraMetadata is locked", __FUNCTION__);
         return INVALID_OPERATION;
@@ -161,6 +170,7 @@
 }
 
 status_t CameraMetadata::sort() {
+    ATRACE_CALL();
     if (mLocked) {
         ALOGE("%s: CameraMetadata is locked", __FUNCTION__);
         return INVALID_OPERATION;
@@ -291,6 +301,7 @@
 
 status_t CameraMetadata::updateImpl(uint32_t tag, const void *data,
         size_t data_count) {
+    ATRACE_CALL();
     status_t res;
     if (mLocked) {
         ALOGE("%s: CameraMetadata is locked", __FUNCTION__);
@@ -348,11 +359,13 @@
 }
 
 bool CameraMetadata::exists(uint32_t tag) const {
+    ATRACE_CALL();
     camera_metadata_ro_entry entry;
     return find_camera_metadata_ro_entry(mBuffer, tag, &entry) == 0;
 }
 
 camera_metadata_entry_t CameraMetadata::find(uint32_t tag) {
+    ATRACE_CALL();
     status_t res;
     camera_metadata_entry entry;
     if (mLocked) {
@@ -369,6 +382,7 @@
 }
 
 camera_metadata_ro_entry_t CameraMetadata::find(uint32_t tag) const {
+    ATRACE_CALL();
     status_t res;
     camera_metadata_ro_entry entry;
     res = find_camera_metadata_ro_entry(mBuffer, tag, &entry);
@@ -380,6 +394,7 @@
 }
 
 status_t CameraMetadata::erase(uint32_t tag) {
+    ATRACE_CALL();
     camera_metadata_entry_t entry;
     status_t res;
     if (mLocked) {
@@ -410,6 +425,7 @@
 
 status_t CameraMetadata::removePermissionEntries(metadata_vendor_id_t vendorId,
         std::vector<int32_t> *tagsRemoved) {
+    ATRACE_CALL();
     uint32_t tagCount = 0;
     std::vector<uint32_t> tagsToRemove;
 
@@ -486,6 +502,7 @@
 }
 
 status_t CameraMetadata::resizeIfNeeded(size_t extraEntries, size_t extraData) {
+    ATRACE_CALL();
     if (mBuffer == NULL) {
         mBuffer = allocate_camera_metadata(extraEntries * 2, extraData * 2);
         if (mBuffer == NULL) {
@@ -525,7 +542,7 @@
 
 status_t CameraMetadata::readFromParcel(const Parcel& data,
                                         camera_metadata_t** out) {
-
+    ATRACE_CALL();
     status_t err = OK;
 
     camera_metadata_t* metadata = NULL;
@@ -616,6 +633,7 @@
 
 status_t CameraMetadata::writeToParcel(Parcel& data,
                                        const camera_metadata_t* metadata) {
+    ATRACE_CALL();
     status_t res = OK;
 
     /**
@@ -710,7 +728,7 @@
 }
 
 status_t CameraMetadata::readFromParcel(const Parcel *parcel) {
-
+    ATRACE_CALL();
     ALOGV("%s: parcel = %p", __FUNCTION__, parcel);
 
     status_t res = OK;
@@ -742,7 +760,7 @@
 }
 
 status_t CameraMetadata::writeToParcel(Parcel *parcel) const {
-
+    ATRACE_CALL();
     ALOGV("%s: parcel = %p", __FUNCTION__, parcel);
 
     if (parcel == NULL) {
@@ -771,7 +789,7 @@
 
 status_t CameraMetadata::getTagFromName(const char *name,
         const VendorTagDescriptor* vTags, uint32_t *tag) {
-
+    ATRACE_CALL();
     if (name == nullptr || tag == nullptr) return BAD_VALUE;
 
     size_t nameLength = strlen(name);
diff --git a/camera/aidl/android/hardware/camera2/ICameraDeviceUser.aidl b/camera/aidl/android/hardware/camera2/ICameraDeviceUser.aidl
index 93549e0..cdb7ac3 100644
--- a/camera/aidl/android/hardware/camera2/ICameraDeviceUser.aidl
+++ b/camera/aidl/android/hardware/camera2/ICameraDeviceUser.aidl
@@ -17,6 +17,8 @@
 package android.hardware.camera2;
 
 import android.hardware.camera2.CaptureRequest;
+import android.hardware.camera2.ICameraDeviceCallbacks;
+import android.hardware.camera2.ICameraOfflineSession;
 import android.hardware.camera2.impl.CameraMetadataNative;
 import android.hardware.camera2.params.OutputConfiguration;
 import android.hardware.camera2.params.SessionConfiguration;
@@ -177,4 +179,15 @@
       * @return the currently applied system-wide audio restriction mode
       */
     int getGlobalAudioRestriction();
+
+    /**
+     * Offline processing main entry point
+     *
+     * @param callbacks Object that will receive callbacks from offline session
+     * @param offlineOutputIds The ID of streams that needs to be preserved in offline session
+     *
+     * @return Offline session object.
+     */
+    ICameraOfflineSession switchToOffline(in ICameraDeviceCallbacks callbacks,
+            in Surface[] offlineOutputs);
 }
diff --git a/camera/aidl/android/hardware/camera2/ICameraOfflineSession.aidl b/camera/aidl/android/hardware/camera2/ICameraOfflineSession.aidl
new file mode 100644
index 0000000..ab030ab
--- /dev/null
+++ b/camera/aidl/android/hardware/camera2/ICameraOfflineSession.aidl
@@ -0,0 +1,23 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT 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.camera2;
+
+ /** @hide */
+interface ICameraOfflineSession
+{
+    void disconnect();
+}
diff --git a/camera/ndk/impl/ACameraMetadata.cpp b/camera/ndk/impl/ACameraMetadata.cpp
index 7c41b5e..e15e1a0 100644
--- a/camera/ndk/impl/ACameraMetadata.cpp
+++ b/camera/ndk/impl/ACameraMetadata.cpp
@@ -480,6 +480,7 @@
         case ACAMERA_CONTROL_POST_RAW_SENSITIVITY_BOOST:
         case ACAMERA_CONTROL_ENABLE_ZSL:
         case ACAMERA_CONTROL_BOKEH_MODE:
+        case ACAMERA_CONTROL_ZOOM_RATIO:
         case ACAMERA_EDGE_MODE:
         case ACAMERA_FLASH_MODE:
         case ACAMERA_HOT_PIXEL_MODE:
diff --git a/camera/ndk/include/camera/NdkCameraMetadataTags.h b/camera/ndk/include/camera/NdkCameraMetadataTags.h
index 825f308..b4a907f 100644
--- a/camera/ndk/include/camera/NdkCameraMetadataTags.h
+++ b/camera/ndk/include/camera/NdkCameraMetadataTags.h
@@ -518,11 +518,22 @@
      * 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>
+     * <p>Starting from API level 30, the coordinate system of activeArraySize or
+     * preCorrectionActiveArraySize is used to represent post-zoomRatio field of view, not
+     * pre-zoom field of view. This means that the same aeRegions values at different
+     * ACAMERA_CONTROL_ZOOM_RATIO represent different parts of the scene. The aeRegions
+     * coordinates are relative to the activeArray/preCorrectionActiveArray representing the
+     * zoomed field of view. If ACAMERA_CONTROL_ZOOM_RATIO is set to 1.0 (default), the same
+     * aeRegions at different ACAMERA_SCALER_CROP_REGION still represent the same parts of the
+     * scene as they do before. See ACAMERA_CONTROL_ZOOM_RATIO for details. Whether to use
+     * activeArraySize or preCorrectionActiveArraySize still depends on distortion correction
+     * mode.</p>
      * <p>The data representation is <code>int[5 * area_count]</code>.
      * Every five elements represent a metering region of <code>(xmin, ymin, xmax, ymax, weight)</code>.
      * The rectangle is defined to be inclusive on xmin and ymin, but exclusive on xmax and
      * ymax.</p>
      *
+     * @see ACAMERA_CONTROL_ZOOM_RATIO
      * @see ACAMERA_DISTORTION_CORRECTION_MODE
      * @see ACAMERA_SCALER_CROP_REGION
      * @see ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
@@ -698,11 +709,22 @@
      * 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>
+     * <p>Starting from API level 30, the coordinate system of activeArraySize or
+     * preCorrectionActiveArraySize is used to represent post-zoomRatio field of view, not
+     * pre-zoom field of view. This means that the same afRegions values at different
+     * ACAMERA_CONTROL_ZOOM_RATIO represent different parts of the scene. The afRegions
+     * coordinates are relative to the activeArray/preCorrectionActiveArray representing the
+     * zoomed field of view. If ACAMERA_CONTROL_ZOOM_RATIO is set to 1.0 (default), the same
+     * afRegions at different ACAMERA_SCALER_CROP_REGION still represent the same parts of the
+     * scene as they do before. See ACAMERA_CONTROL_ZOOM_RATIO for details. Whether to use
+     * activeArraySize or preCorrectionActiveArraySize still depends on distortion correction
+     * mode.</p>
      * <p>The data representation is <code>int[5 * area_count]</code>.
      * Every five elements represent a metering region of <code>(xmin, ymin, xmax, ymax, weight)</code>.
      * The rectangle is defined to be inclusive on xmin and ymin, but exclusive on xmax and
      * ymax.</p>
      *
+     * @see ACAMERA_CONTROL_ZOOM_RATIO
      * @see ACAMERA_DISTORTION_CORRECTION_MODE
      * @see ACAMERA_SCALER_CROP_REGION
      * @see ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
@@ -873,11 +895,22 @@
      * 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>
+     * <p>Starting from API level 30, the coordinate system of activeArraySize or
+     * preCorrectionActiveArraySize is used to represent post-zoomRatio field of view, not
+     * pre-zoom field of view. This means that the same awbRegions values at different
+     * ACAMERA_CONTROL_ZOOM_RATIO represent different parts of the scene. The awbRegions
+     * coordinates are relative to the activeArray/preCorrectionActiveArray representing the
+     * zoomed field of view. If ACAMERA_CONTROL_ZOOM_RATIO is set to 1.0 (default), the same
+     * awbRegions at different ACAMERA_SCALER_CROP_REGION still represent the same parts of
+     * the scene as they do before. See ACAMERA_CONTROL_ZOOM_RATIO for details. Whether to use
+     * activeArraySize or preCorrectionActiveArraySize still depends on distortion correction
+     * mode.</p>
      * <p>The data representation is <code>int[5 * area_count]</code>.
      * Every five elements represent a metering region of <code>(xmin, ymin, xmax, ymax, weight)</code>.
      * The rectangle is defined to be inclusive on xmin and ymin, but exclusive on xmax and
      * ymax.</p>
      *
+     * @see ACAMERA_CONTROL_ZOOM_RATIO
      * @see ACAMERA_DISTORTION_CORRECTION_MODE
      * @see ACAMERA_SCALER_CROP_REGION
      * @see ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
@@ -1311,7 +1344,7 @@
     /**
      * <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
+     * this corresponds to the maximum number of elements in
      * ACAMERA_CONTROL_AE_REGIONS, ACAMERA_CONTROL_AWB_REGIONS,
      * and ACAMERA_CONTROL_AF_REGIONS.</p>
      *
@@ -1735,8 +1768,10 @@
     ACAMERA_CONTROL_AF_SCENE_CHANGE =                           // byte (acamera_metadata_enum_android_control_af_scene_change_t)
             ACAMERA_CONTROL_START + 42,
     /**
-     * <p>The list of bokeh modes that are supported by this camera device, and each bokeh mode's
-     * maximum streaming (non-stall) size with bokeh effect.</p>
+     * <p>The list of bokeh modes for ACAMERA_CONTROL_BOKEH_MODE that are supported by this camera
+     * device, and each bokeh mode's maximum streaming (non-stall) size with bokeh effect.</p>
+     *
+     * @see ACAMERA_CONTROL_BOKEH_MODE
      *
      * <p>Type: int32[3*n]</p>
      *
@@ -1761,9 +1796,31 @@
      * application configures a stream with larger dimension, the stream may not have bokeh
      * effect applied.</p>
      */
-    ACAMERA_CONTROL_AVAILABLE_BOKEH_CAPABILITIES =              // int32[3*n]
+    ACAMERA_CONTROL_AVAILABLE_BOKEH_MAX_SIZES =                 // int32[3*n]
             ACAMERA_CONTROL_START + 43,
     /**
+     * <p>The ranges of supported zoom ratio for non-OFF ACAMERA_CONTROL_BOKEH_MODE.</p>
+     *
+     * @see ACAMERA_CONTROL_BOKEH_MODE
+     *
+     * <p>Type: float[2*n]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>When bokeh mode is enabled, the camera device may have limited range of zoom ratios
+     * compared to when bokeh mode is disabled. This tag lists the zoom ratio ranges for all
+     * supported non-OFF bokeh modes, in the same order as in
+     * ACAMERA_CONTROL_AVAILABLE_BOKEH_CAPABILITIES.</p>
+     * <p>Range [1.0, 1.0] means that no zoom (optical or digital) is supported.</p>
+     *
+     * @see ACAMERA_CONTROL_AVAILABLE_BOKEH_CAPABILITIES
+     */
+    ACAMERA_CONTROL_AVAILABLE_BOKEH_ZOOM_RATIO_RANGES =         // float[2*n]
+            ACAMERA_CONTROL_START + 44,
+    /**
      * <p>Whether bokeh mode is enabled for a particular capture request.</p>
      *
      * <p>Type: byte (acamera_metadata_enum_android_control_bokeh_mode_t)</p>
@@ -1804,7 +1861,71 @@
      * bokeh mode is off.</p>
      */
     ACAMERA_CONTROL_BOKEH_MODE =                                // byte (acamera_metadata_enum_android_control_bokeh_mode_t)
-            ACAMERA_CONTROL_START + 44,
+            ACAMERA_CONTROL_START + 45,
+    /**
+     * <p>Minimum and maximum zoom ratios supported by this camera device.</p>
+     *
+     * <p>Type: float[2]</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraManager_getCameraCharacteristics</li>
+     * </ul></p>
+     *
+     * <p>If the camera device supports zoom-out from 1x zoom, minZoom will be less than 1.0, and
+     * setting android.control.zoomRation to values less than 1.0 increases the camera's field
+     * of view.</p>
+     */
+    ACAMERA_CONTROL_ZOOM_RATIO_RANGE =                          // float[2]
+            ACAMERA_CONTROL_START + 46,
+    /**
+     * <p>The desired zoom ratio</p>
+     *
+     * <p>Type: float</p>
+     *
+     * <p>This tag may appear in:
+     * <ul>
+     *   <li>ACameraMetadata from ACameraCaptureSession_captureCallback_result callbacks</li>
+     *   <li>ACaptureRequest</li>
+     * </ul></p>
+     *
+     * <p>Instead of using ACAMERA_SCALER_CROP_REGION with dual purposes of crop and zoom, the
+     * application can now choose to use this tag to specify the desired zoom level. The
+     * ACAMERA_SCALER_CROP_REGION can still be used to specify the horizontal or vertical
+     * crop to achieve aspect ratios different than the native camera sensor.</p>
+     * <p>By using this control, the application gains a simpler way to control zoom, which can
+     * be a combination of optical and digital zoom. More specifically, for a logical
+     * multi-camera with more than one focal length, using a floating point zoom ratio offers
+     * more zoom precision when a telephoto lens is used, as well as allowing zoom ratio of
+     * less than 1.0 to zoom out to a wide field of view.</p>
+     * <p>Note that the coordinate system of cropRegion, AE/AWB/AF regions, and faces now changes
+     * to the effective after-zoom field-of-view represented by rectangle of (0, 0,
+     * activeArrayWidth, activeArrayHeight).</p>
+     * <p>For example, if ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE is 4032*3024, and the preview stream
+     * is configured to the same 4:3 aspect ratio, the application can achieve 2.0x zoom in
+     * one of two ways:</p>
+     * <ul>
+     * <li>zoomRatio = 2.0, scaler.cropRegion = (0, 0, 4032, 3024)</li>
+     * <li>zoomRatio = 1.0 (default), scaler.cropRegion = (1008, 756, 3024, 2268)</li>
+     * </ul>
+     * <p>If the application intends to set aeRegions to be top-left quarter of the preview
+     * field-of-view, the ACAMERA_CONTROL_AE_REGIONS should be set to (0, 0, 2016, 1512) with
+     * zoomRatio set to 2.0. Alternatively, the application can set aeRegions to the equivalent
+     * region of (1008, 756, 2016, 1512) for zoomRatio of 1.0. If the application doesn't
+     * explicitly set ACAMERA_CONTROL_ZOOM_RATIO, its value defaults to 1.0.</p>
+     * <p>This coordinate system change isn't applicable to RAW capture and its related metadata
+     * such as intrinsicCalibration and lensShadingMap.</p>
+     * <p>One limitation of controlling zoom using zoomRatio is that the ACAMERA_SCALER_CROP_REGION
+     * must only be used for letterboxing or pillarboxing of the sensor active array, and no
+     * FREEFORM cropping can be used with ACAMERA_CONTROL_ZOOM_RATIO other than 1.0.</p>
+     *
+     * @see ACAMERA_CONTROL_AE_REGIONS
+     * @see ACAMERA_CONTROL_ZOOM_RATIO
+     * @see ACAMERA_SCALER_CROP_REGION
+     * @see ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
+     */
+    ACAMERA_CONTROL_ZOOM_RATIO =                                // float
+            ACAMERA_CONTROL_START + 47,
     ACAMERA_CONTROL_END,
 
     /**
@@ -3203,8 +3324,17 @@
      * for rounding and other hardware requirements; the final
      * crop region used will be included in the output capture
      * result.</p>
+     * <p>Starting from API level 30, it's strongly recommended to use ACAMERA_CONTROL_ZOOM_RATIO
+     * to take advantage of better support for zoom with logical multi-camera. The benefits
+     * include better precision with optical-digital zoom combination, and ability to do
+     * zoom-out from 1.0x. When using ACAMERA_CONTROL_ZOOM_RATIO for zoom, the crop region in
+     * the capture request must be either letterboxing or pillarboxing (but not both). The
+     * coordinate system is post-zoom, meaning that the activeArraySize or
+     * preCorrectionActiveArraySize covers the camera device's field of view "after" zoom.
+     * See ACAMERA_CONTROL_ZOOM_RATIO for details.</p>
      * <p>The data representation is int[4], which maps to (left, top, width, height).</p>
      *
+     * @see ACAMERA_CONTROL_ZOOM_RATIO
      * @see ACAMERA_DISTORTION_CORRECTION_MODE
      * @see ACAMERA_SCALER_AVAILABLE_MAX_DIGITAL_ZOOM
      * @see ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
@@ -3232,6 +3362,12 @@
      * <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>
+     * <p>Starting from API level 30, when using ACAMERA_CONTROL_ZOOM_RATIO to zoom in or out,
+     * the application must use ACAMERA_CONTROL_ZOOM_RATIO_RANGE to query both the minimum and
+     * maximum zoom ratio.</p>
+     *
+     * @see ACAMERA_CONTROL_ZOOM_RATIO
+     * @see ACAMERA_CONTROL_ZOOM_RATIO_RANGE
      */
     ACAMERA_SCALER_AVAILABLE_MAX_DIGITAL_ZOOM =                 // float
             ACAMERA_SCALER_START + 4,
@@ -3406,8 +3542,24 @@
      * <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>Starting from API level 30,</p>
+     * <ul>
+     * <li>If the camera device supports FREEFORM cropping, in order to do FREEFORM cropping, the
+     * application must set ACAMERA_CONTROL_ZOOM_RATIO to 1.0, and use ACAMERA_SCALER_CROP_REGION
+     * for zoom.</li>
+     * <li>To do CENTER_ONLY zoom, the application has below 2 options:<ol>
+     * <li>Set ACAMERA_CONTROL_ZOOM_RATIO to 1.0; adjust zoom by ACAMERA_SCALER_CROP_REGION.</li>
+     * <li>Adjust zoom by ACAMERA_CONTROL_ZOOM_RATIO; use ACAMERA_SCALER_CROP_REGION to crop
+     * the field of view vertically (letterboxing) or horizontally (pillarboxing), but not
+     * windowboxing.</li>
+     * </ol>
+     * </li>
+     * <li>Setting ACAMERA_CONTROL_ZOOM_RATIO to values different than 1.0 and
+     * ACAMERA_SCALER_CROP_REGION to be windowboxing at the same time is undefined behavior.</li>
+     * </ul>
      * <p>LEGACY capability devices will only support CENTER_ONLY cropping.</p>
      *
+     * @see ACAMERA_CONTROL_ZOOM_RATIO
      * @see ACAMERA_SCALER_CROP_REGION
      * @see ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
      */
@@ -4707,9 +4859,20 @@
      * When the distortion correction mode is not OFF, the coordinate system follows
      * 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>
+     * <p>Only available if ACAMERA_STATISTICS_FACE_DETECT_MODE == FULL.</p>
+     * <p>Starting from API level 30, the coordinate system of activeArraySize or
+     * preCorrectionActiveArraySize is used to represent post-zoomRatio field of view, not
+     * pre-zoomRatio field of view. This means that if the relative position of faces and
+     * the camera device doesn't change, when zooming in by increasing
+     * ACAMERA_CONTROL_ZOOM_RATIO, the face landmarks move farther away from the center of the
+     * activeArray or preCorrectionActiveArray. If ACAMERA_CONTROL_ZOOM_RATIO is set to 1.0
+     * (default), the face landmarks coordinates won't change as ACAMERA_SCALER_CROP_REGION
+     * changes. See ACAMERA_CONTROL_ZOOM_RATIO for details. Whether to use activeArraySize or
+     * preCorrectionActiveArraySize still depends on distortion correction mode.</p>
      *
+     * @see ACAMERA_CONTROL_ZOOM_RATIO
      * @see ACAMERA_DISTORTION_CORRECTION_MODE
+     * @see ACAMERA_SCALER_CROP_REGION
      * @see ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
      * @see ACAMERA_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE
      * @see ACAMERA_STATISTICS_FACE_DETECT_MODE
@@ -4738,10 +4901,21 @@
      * When the distortion correction mode is not OFF, the coordinate system follows
      * 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
-     * The data representation is <code>int[4]</code>, which maps to <code>(left, top, right, bottom)</code>.</p>
+     * <p>Only available if ACAMERA_STATISTICS_FACE_DETECT_MODE != OFF.</p>
+     * <p>Starting from API level 30, the coordinate system of activeArraySize or
+     * preCorrectionActiveArraySize is used to represent post-zoomRatio field of view, not
+     * pre-zoomRatio field of view. This means that if the relative position of faces and
+     * the camera device doesn't change, when zooming in by increasing
+     * ACAMERA_CONTROL_ZOOM_RATIO, the face rectangles grow larger and move farther away from
+     * the center of the activeArray or preCorrectionActiveArray. If ACAMERA_CONTROL_ZOOM_RATIO
+     * is set to 1.0 (default), the face rectangles won't change as ACAMERA_SCALER_CROP_REGION
+     * changes. See ACAMERA_CONTROL_ZOOM_RATIO for details. Whether to use activeArraySize or
+     * preCorrectionActiveArraySize still depends on distortion correction mode.</p>
+     * <p>The data representation is <code>int[4]</code>, which maps to <code>(left, top, right, bottom)</code>.</p>
      *
+     * @see ACAMERA_CONTROL_ZOOM_RATIO
      * @see ACAMERA_DISTORTION_CORRECTION_MODE
+     * @see ACAMERA_SCALER_CROP_REGION
      * @see ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
      * @see ACAMERA_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE
      * @see ACAMERA_STATISTICS_FACE_DETECT_MODE
diff --git a/cmds/screenrecord/Android.bp b/cmds/screenrecord/Android.bp
index 6bdbab1..72008c2 100644
--- a/cmds/screenrecord/Android.bp
+++ b/cmds/screenrecord/Android.bp
@@ -31,6 +31,7 @@
     shared_libs: [
         "libstagefright",
         "libmedia",
+        "libmediandk",
         "libmedia_omx",
         "libutils",
         "libbinder",
diff --git a/cmds/screenrecord/screenrecord.cpp b/cmds/screenrecord/screenrecord.cpp
index 4a24b96..b534f8a 100644
--- a/cmds/screenrecord/screenrecord.cpp
+++ b/cmds/screenrecord/screenrecord.cpp
@@ -45,13 +45,15 @@
 #include <gui/SurfaceComposerClient.h>
 #include <gui/ISurfaceComposer.h>
 #include <ui/DisplayInfo.h>
+#include <media/NdkMediaCodec.h>
+#include <media/NdkMediaFormatPriv.h>
+#include <media/NdkMediaMuxer.h>
 #include <media/openmax/OMX_IVCommon.h>
 #include <media/stagefright/foundation/ABuffer.h>
 #include <media/stagefright/foundation/AMessage.h>
 #include <media/stagefright/MediaCodec.h>
 #include <media/stagefright/MediaCodecConstants.h>
 #include <media/stagefright/MediaErrors.h>
-#include <media/stagefright/MediaMuxer.h>
 #include <media/stagefright/PersistentSurface.h>
 #include <mediadrm/ICrypto.h>
 #include <media/MediaCodecBuffer.h>
@@ -71,7 +73,6 @@
 using android::ISurfaceComposer;
 using android::MediaCodec;
 using android::MediaCodecBuffer;
-using android::MediaMuxer;
 using android::Overlay;
 using android::PersistentSurface;
 using android::PhysicalDisplayId;
@@ -377,7 +378,7 @@
  *   (as little endian uint64).
  */
 static status_t writeWinscopeMetadata(const Vector<int64_t>& timestamps,
-        const ssize_t metaTrackIdx, const sp<MediaMuxer>& muxer) {
+        const ssize_t metaTrackIdx, AMediaMuxer *muxer) {
     ALOGV("Writing metadata");
     int64_t systemTimeToElapsedTimeOffsetMicros = (android::elapsedRealtimeNano()
         - systemTime(SYSTEM_TIME_MONOTONIC)) / 1000;
@@ -393,7 +394,13 @@
             + systemTimeToElapsedTimeOffsetMicros), pos);
         pos += sizeof(uint64_t);
     }
-    return muxer->writeSampleData(buffer, metaTrackIdx, timestamps[0], 0);
+    AMediaCodecBufferInfo bufferInfo = {
+        0,
+        static_cast<int32_t>(buffer->size()),
+        timestamps[0],
+        0
+    };
+    return AMediaMuxer_writeSampleData(muxer, metaTrackIdx, buffer->data(), &bufferInfo);
 }
 
 /*
@@ -406,7 +413,7 @@
  * The muxer must *not* have been started before calling.
  */
 static status_t runEncoder(const sp<MediaCodec>& encoder,
-        const sp<MediaMuxer>& muxer, FILE* rawFp, const sp<IBinder>& display,
+        AMediaMuxer *muxer, FILE* rawFp, const sp<IBinder>& display,
         const sp<IBinder>& virtualDpy, uint8_t orientation) {
     static int kTimeout = 250000;   // be responsive on signal
     status_t err;
@@ -513,8 +520,13 @@
                     // TODO
                     sp<ABuffer> buffer = new ABuffer(
                             buffers[bufIndex]->data(), buffers[bufIndex]->size());
-                    err = muxer->writeSampleData(buffer, trackIdx,
-                            ptsUsec, flags);
+                    AMediaCodecBufferInfo bufferInfo = {
+                        0,
+                        static_cast<int32_t>(buffer->size()),
+                        ptsUsec,
+                        flags
+                    };
+                    err = AMediaMuxer_writeSampleData(muxer, trackIdx, buffer->data(), &bufferInfo);
                     if (err != NO_ERROR) {
                         fprintf(stderr,
                             "Failed writing data to muxer (err=%d)\n", err);
@@ -547,15 +559,18 @@
                 ALOGV("Encoder format changed");
                 sp<AMessage> newFormat;
                 encoder->getOutputFormat(&newFormat);
+                // TODO remove when MediaCodec has been replaced with AMediaCodec
+                AMediaFormat *ndkFormat = AMediaFormat_fromMsg(&newFormat);
                 if (muxer != NULL) {
-                    trackIdx = muxer->addTrack(newFormat);
+                    trackIdx = AMediaMuxer_addTrack(muxer, ndkFormat);
                     if (gOutputFormat == FORMAT_MP4) {
-                        sp<AMessage> metaFormat = new AMessage;
-                        metaFormat->setString(KEY_MIME, kMimeTypeApplicationOctetstream);
-                        metaTrackIdx = muxer->addTrack(metaFormat);
+                        AMediaFormat *metaFormat = AMediaFormat_new();
+                        AMediaFormat_setString(metaFormat, AMEDIAFORMAT_KEY_MIME, kMimeTypeApplicationOctetstream);
+                        metaTrackIdx = AMediaMuxer_addTrack(muxer, metaFormat);
+                        AMediaFormat_delete(metaFormat);
                     }
                     ALOGV("Starting muxer");
-                    err = muxer->start();
+                    err = AMediaMuxer_start(muxer);
                     if (err != NO_ERROR) {
                         fprintf(stderr, "Unable to start muxer (err=%d)\n", err);
                         return err;
@@ -762,7 +777,7 @@
         return err;
     }
 
-    sp<MediaMuxer> muxer = NULL;
+    AMediaMuxer *muxer = nullptr;
     FILE* rawFp = NULL;
     switch (gOutputFormat) {
         case FORMAT_MP4:
@@ -781,15 +796,15 @@
                 abort();
             }
             if (gOutputFormat == FORMAT_MP4) {
-                muxer = new MediaMuxer(fd, MediaMuxer::OUTPUT_FORMAT_MPEG_4);
+                muxer = AMediaMuxer_new(fd, AMEDIAMUXER_OUTPUT_FORMAT_MPEG_4);
             } else if (gOutputFormat == FORMAT_WEBM) {
-                muxer = new MediaMuxer(fd, MediaMuxer::OUTPUT_FORMAT_WEBM);
+                muxer = AMediaMuxer_new(fd, AMEDIAMUXER_OUTPUT_FORMAT_WEBM);
             } else {
-                muxer = new MediaMuxer(fd, MediaMuxer::OUTPUT_FORMAT_THREE_GPP);
+                muxer = AMediaMuxer_new(fd, AMEDIAMUXER_OUTPUT_FORMAT_THREE_GPP);
             }
             close(fd);
             if (gRotate) {
-                muxer->setOrientationHint(90);  // TODO: does this do anything?
+                AMediaMuxer_setOrientationHint(muxer, 90); // TODO: does this do anything?
             }
             break;
         }
@@ -860,7 +875,7 @@
     if (muxer != NULL) {
         // If we don't stop muxer explicitly, i.e. let the destructor run,
         // it may hang (b/11050628).
-        err = muxer->stop();
+        err = AMediaMuxer_stop(muxer);
     } else if (rawFp != stdout) {
         fclose(rawFp);
     }
diff --git a/cmds/stagefright/AudioPlayer.cpp b/cmds/stagefright/AudioPlayer.cpp
index 208713d..eb76953 100644
--- a/cmds/stagefright/AudioPlayer.cpp
+++ b/cmds/stagefright/AudioPlayer.cpp
@@ -23,7 +23,7 @@
 
 #include <binder/IPCThreadState.h>
 #include <media/AudioTrack.h>
-#include <media/MediaSource.h>
+#include <media/stagefright/MediaSource.h>
 #include <media/openmax/OMX_Audio.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/ALookup.h>
diff --git a/cmds/stagefright/AudioPlayer.h b/cmds/stagefright/AudioPlayer.h
index 7c2c36f..107bd71 100644
--- a/cmds/stagefright/AudioPlayer.h
+++ b/cmds/stagefright/AudioPlayer.h
@@ -18,7 +18,7 @@
 
 #define AUDIO_PLAYER_H_
 
-#include <media/MediaSource.h>
+#include <media/stagefright/MediaSource.h>
 #include <media/MediaPlayerInterface.h>
 #include <media/stagefright/MediaBuffer.h>
 #include <utils/threads.h>
diff --git a/cmds/stagefright/SineSource.h b/cmds/stagefright/SineSource.h
index 1817291..6f1d98c 100644
--- a/cmds/stagefright/SineSource.h
+++ b/cmds/stagefright/SineSource.h
@@ -2,7 +2,7 @@
 
 #define SINE_SOURCE_H_
 
-#include <media/MediaSource.h>
+#include <media/stagefright/MediaSource.h>
 #include <utils/Compat.h>
 
 namespace android {
diff --git a/cmds/stagefright/audioloop.cpp b/cmds/stagefright/audioloop.cpp
index bd274d8..84a6d6b 100644
--- a/cmds/stagefright/audioloop.cpp
+++ b/cmds/stagefright/audioloop.cpp
@@ -107,8 +107,11 @@
 
     if (useMic) {
         // talk into the appropriate microphone for the duration
+        audio_attributes_t attr = AUDIO_ATTRIBUTES_INITIALIZER;
+        attr.source = AUDIO_SOURCE_MIC;
+
         source = new AudioSource(
-                AUDIO_SOURCE_MIC,
+                &attr,
                 String16(),
                 sampleRate,
                 channels);
diff --git a/cmds/stagefright/stagefright.cpp b/cmds/stagefright/stagefright.cpp
index e8cfece..c430f05 100644
--- a/cmds/stagefright/stagefright.cpp
+++ b/cmds/stagefright/stagefright.cpp
@@ -33,7 +33,7 @@
 #include <binder/ProcessState.h>
 #include <datasource/DataSourceFactory.h>
 #include <media/DataSource.h>
-#include <media/MediaSource.h>
+#include <media/stagefright/MediaSource.h>
 #include <media/IMediaHTTPService.h>
 #include <media/IMediaPlayerService.h>
 #include <media/stagefright/foundation/ABuffer.h>
diff --git a/cmds/stagefright/stream.cpp b/cmds/stagefright/stream.cpp
index fe613a8..5b29158 100644
--- a/cmds/stagefright/stream.cpp
+++ b/cmds/stagefright/stream.cpp
@@ -26,7 +26,7 @@
 #include <media/IMediaHTTPService.h>
 #include <media/IStreamSource.h>
 #include <media/mediaplayer.h>
-#include <media/MediaSource.h>
+#include <media/stagefright/MediaSource.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/AMessage.h>
 #include <media/stagefright/InterfaceUtils.h>
diff --git a/drm/drmserver/DrmManager.cpp b/drm/drmserver/DrmManager.cpp
index e2ea83a..38dc052 100644
--- a/drm/drmserver/DrmManager.cpp
+++ b/drm/drmserver/DrmManager.cpp
@@ -31,7 +31,7 @@
 #include <drm/DrmInfoRequest.h>
 #include <drm/DrmSupportInfo.h>
 #include <drm/DrmConvertedStatus.h>
-#include <media/MediaAnalyticsItem.h>
+#include <media/MediaMetricsItem.h>
 #include <IDrmEngine.h>
 
 #include "DrmManager.h"
@@ -58,7 +58,7 @@
         const char func[], const String8& plugInId, const String8& mimeType) {
     IDrmEngine& engine = mPlugInManager.getPlugIn(plugInId);
 
-    std::unique_ptr<MediaAnalyticsItem> item(MediaAnalyticsItem::create("drmmanager"));
+    std::unique_ptr<mediametrics::Item> item(mediametrics::Item::create("drmmanager"));
     item->setUid(IPCThreadState::self()->getCallingUid());
     item->setCString("function_name", func);
     item->setCString("plugin_id", plugInId.getPathLeaf().getBasePath().c_str());
diff --git a/drm/mediadrm/plugins/clearkey/common/ClearKeyUUID.cpp b/drm/mediadrm/plugins/clearkey/common/ClearKeyUUID.cpp
index 0259a42..4e7daec 100644
--- a/drm/mediadrm/plugins/clearkey/common/ClearKeyUUID.cpp
+++ b/drm/mediadrm/plugins/clearkey/common/ClearKeyUUID.cpp
@@ -20,20 +20,28 @@
 
 namespace clearkeydrm {
 
+namespace {
+
+const std::array<uint8_t, 16> kCommonPsshBoxUUID{
+    0x10,0x77,0xEF,0xEC,0xC0,0xB2,0x4D,0x02,
+    0xAC,0xE3,0x3C,0x1E,0x52,0xE2,0xFB,0x4B
+};
+
+// To be used in mpd to specify drm scheme for players
+const std::array<uint8_t, 16> kClearKeyUUID{
+    0xE2,0x71,0x9D,0x58,0xA9,0x85,0xB3,0xC9,
+    0x78,0x1A,0xB0,0x30,0xAF,0x78,0xD3,0x0E
+};
+
+}
+
 bool isClearKeyUUID(const uint8_t uuid[16]) {
-    static const uint8_t kCommonPsshBoxUUID[16] = {
-        0x10,0x77,0xEF,0xEC,0xC0,0xB2,0x4D,0x02,
-        0xAC,0xE3,0x3C,0x1E,0x52,0xE2,0xFB,0x4B
-    };
+    return !memcmp(uuid, kCommonPsshBoxUUID.data(), kCommonPsshBoxUUID.size()) ||
+           !memcmp(uuid, kClearKeyUUID.data(), kClearKeyUUID.size());
+}
 
-    // To be used in mpd to specify drm scheme for players
-    static const uint8_t kClearKeyUUID[16] = {
-        0xE2,0x71,0x9D,0x58,0xA9,0x85,0xB3,0xC9,
-        0x78,0x1A,0xB0,0x30,0xAF,0x78,0xD3,0x0E
-    };
-
-    return !memcmp(uuid, kCommonPsshBoxUUID, sizeof(kCommonPsshBoxUUID)) ||
-           !memcmp(uuid, kClearKeyUUID, sizeof(kClearKeyUUID));
+std::vector<std::array<uint8_t, 16>> getSupportedCryptoSchemes() {
+    return {kCommonPsshBoxUUID, kClearKeyUUID};
 }
 
 } // namespace clearkeydrm
diff --git a/drm/mediadrm/plugins/clearkey/common/include/ClearKeyUUID.h b/drm/mediadrm/plugins/clearkey/common/include/ClearKeyUUID.h
index ac99418..fe10fba 100644
--- a/drm/mediadrm/plugins/clearkey/common/include/ClearKeyUUID.h
+++ b/drm/mediadrm/plugins/clearkey/common/include/ClearKeyUUID.h
@@ -17,12 +17,16 @@
 #ifndef CLEARKEY_UUID_H_
 #define CLEARKEY_UUID_H_
 
-#include <stdint.h>
+#include <array>
+#include <cstdint>
+#include <vector>
 
 namespace clearkeydrm {
 
 bool isClearKeyUUID(const uint8_t uuid[16]);
 
+std::vector<std::array<uint8_t, 16>> getSupportedCryptoSchemes();
+
 } // namespace clearkeydrm
 
 #endif // CLEARKEY_UUID_H_
diff --git a/drm/mediadrm/plugins/clearkey/hidl/Android.bp b/drm/mediadrm/plugins/clearkey/hidl/Android.bp
index a153ce2..a194416 100644
--- a/drm/mediadrm/plugins/clearkey/hidl/Android.bp
+++ b/drm/mediadrm/plugins/clearkey/hidl/Android.bp
@@ -43,6 +43,7 @@
         "android.hardware.drm@1.0",
         "android.hardware.drm@1.1",
         "android.hardware.drm@1.2",
+        "android.hardware.drm@1.3",
         "libbase",
         "libbinder",
         "libcrypto",
@@ -77,16 +78,37 @@
     },
     srcs: ["protos/DeviceFiles.proto"],
 }
+
 cc_binary {
     name: "android.hardware.drm@1.2-service.clearkey",
     defaults: ["clearkey_service_defaults"],
     srcs: ["service.cpp"],
     init_rc: ["android.hardware.drm@1.2-service.clearkey.rc"],
+    vintf_fragments: ["manifest_android.hardware.drm@1.2-service.clearkey.xml"],
 }
+
 cc_binary {
     name: "android.hardware.drm@1.2-service-lazy.clearkey",
     overrides: ["android.hardware.drm@1.2-service.clearkey"],
     defaults: ["clearkey_service_defaults"],
     srcs: ["serviceLazy.cpp"],
     init_rc: ["android.hardware.drm@1.2-service-lazy.clearkey.rc"],
+    vintf_fragments: ["manifest_android.hardware.drm@1.2-service.clearkey.xml"],
+}
+
+cc_binary {
+    name: "android.hardware.drm@1.3-service.clearkey",
+    defaults: ["clearkey_service_defaults"],
+    srcs: ["service.cpp"],
+    init_rc: ["android.hardware.drm@1.3-service.clearkey.rc"],
+    vintf_fragments: ["manifest_android.hardware.drm@1.3-service.clearkey.xml"],
+}
+
+cc_binary {
+    name: "android.hardware.drm@1.3-service-lazy.clearkey",
+    overrides: ["android.hardware.drm@1.3-service.clearkey"],
+    defaults: ["clearkey_service_defaults"],
+    srcs: ["serviceLazy.cpp"],
+    init_rc: ["android.hardware.drm@1.3-service-lazy.clearkey.rc"],
+    vintf_fragments: ["manifest_android.hardware.drm@1.3-service.clearkey.xml"],
 }
diff --git a/drm/mediadrm/plugins/clearkey/hidl/CreatePluginFactories.cpp b/drm/mediadrm/plugins/clearkey/hidl/CreatePluginFactories.cpp
index 1410d77..bfb0e05 100644
--- a/drm/mediadrm/plugins/clearkey/hidl/CreatePluginFactories.cpp
+++ b/drm/mediadrm/plugins/clearkey/hidl/CreatePluginFactories.cpp
@@ -22,7 +22,7 @@
 namespace android {
 namespace hardware {
 namespace drm {
-namespace V1_2 {
+namespace V1_3 {
 namespace clearkey {
 
 extern "C" {
@@ -38,7 +38,7 @@
 } // extern "C"
 
 }  // namespace clearkey
-}  // namespace V1_2
+}  // namespace V1_3
 }  // namespace drm
 }  // namespace hardware
 }  // namespace android
diff --git a/drm/mediadrm/plugins/clearkey/hidl/CryptoFactory.cpp b/drm/mediadrm/plugins/clearkey/hidl/CryptoFactory.cpp
index 2a48db6..a6ed3bd 100644
--- a/drm/mediadrm/plugins/clearkey/hidl/CryptoFactory.cpp
+++ b/drm/mediadrm/plugins/clearkey/hidl/CryptoFactory.cpp
@@ -27,9 +27,12 @@
 namespace android {
 namespace hardware {
 namespace drm {
-namespace V1_2 {
+namespace V1_3 {
 namespace clearkey {
 
+using ::android::hardware::drm::V1_0::Status;
+using ::android::hardware::drm::V1_2::clearkey::CryptoPlugin;
+
 Return<bool> CryptoFactory::isCryptoSchemeSupported(
     const hidl_array<uint8_t, 16> &uuid)
 {
@@ -60,7 +63,7 @@
 }
 
 } // namespace clearkey
-} // namespace V1_2
+} // namespace V1_3
 } // namespace drm
 } // namespace hardware
 } // namespace android
diff --git a/drm/mediadrm/plugins/clearkey/hidl/DrmFactory.cpp b/drm/mediadrm/plugins/clearkey/hidl/DrmFactory.cpp
index 9fb5bbe..ccc73b6 100644
--- a/drm/mediadrm/plugins/clearkey/hidl/DrmFactory.cpp
+++ b/drm/mediadrm/plugins/clearkey/hidl/DrmFactory.cpp
@@ -15,6 +15,7 @@
  */
 
 //#define LOG_NDEBUG 0
+#include <vector>
 #define LOG_TAG "hidl_ClearKeyDrmFactory"
 #include <utils/Log.h>
 
@@ -30,11 +31,13 @@
 namespace android {
 namespace hardware {
 namespace drm {
-namespace V1_2 {
+namespace V1_3 {
 namespace clearkey {
 
 using ::android::hardware::drm::V1_0::Status;
 using ::android::hardware::drm::V1_1::SecurityLevel;
+using ::android::hardware::drm::V1_2::clearkey::DrmPlugin;
+using ::android::hardware::drm::V1_2::clearkey::SessionLibrary;
 using ::android::hardware::Void;
 
 Return<bool> DrmFactory::isCryptoSchemeSupported(
@@ -78,8 +81,18 @@
     return Void();
 }
 
+Return<void> DrmFactory::getSupportedCryptoSchemes(
+        getSupportedCryptoSchemes_cb _hidl_cb) {
+    std::vector<hidl_array<uint8_t, 16>> schemes;
+    for (const auto &scheme : clearkeydrm::getSupportedCryptoSchemes()) {
+        schemes.push_back(scheme);
+    }
+    _hidl_cb(schemes);
+    return Void();
+}
+
 } // namespace clearkey
-} // namespace V1_2
+} // namespace V1_3
 } // namespace drm
 } // namespace hardware
 } // namespace android
diff --git a/drm/mediadrm/plugins/clearkey/hidl/android.hardware.drm@1.2-service.clearkey.rc b/drm/mediadrm/plugins/clearkey/hidl/android.hardware.drm@1.2-service.clearkey.rc
index 5ba669d..c1abe7f 100644
--- a/drm/mediadrm/plugins/clearkey/hidl/android.hardware.drm@1.2-service.clearkey.rc
+++ b/drm/mediadrm/plugins/clearkey/hidl/android.hardware.drm@1.2-service.clearkey.rc
@@ -5,6 +5,7 @@
     interface android.hardware.drm@1.1::IDrmFactory clearkey
     interface android.hardware.drm@1.2::ICryptoFactory clearkey
     interface android.hardware.drm@1.2::IDrmFactory clearkey
+    disabled
     class hal
     user media
     group media mediadrm
diff --git a/drm/mediadrm/plugins/clearkey/hidl/android.hardware.drm@1.3-service-lazy.clearkey.rc b/drm/mediadrm/plugins/clearkey/hidl/android.hardware.drm@1.3-service-lazy.clearkey.rc
new file mode 100644
index 0000000..1e0d431
--- /dev/null
+++ b/drm/mediadrm/plugins/clearkey/hidl/android.hardware.drm@1.3-service-lazy.clearkey.rc
@@ -0,0 +1,16 @@
+service vendor.drm-clearkey-hal-1-3 /vendor/bin/hw/android.hardware.drm@1.3-service-lazy.clearkey
+    interface android.hardware.drm@1.0::ICryptoFactory clearkey
+    interface android.hardware.drm@1.0::IDrmFactory clearkey
+    interface android.hardware.drm@1.1::ICryptoFactory clearkey
+    interface android.hardware.drm@1.1::IDrmFactory clearkey
+    interface android.hardware.drm@1.2::ICryptoFactory clearkey
+    interface android.hardware.drm@1.2::IDrmFactory clearkey
+    interface android.hardware.drm@1.3::ICryptoFactory clearkey
+    interface android.hardware.drm@1.3::IDrmFactory clearkey
+    disabled
+    oneshot
+    class hal
+    user media
+    group media mediadrm
+    ioprio rt 4
+    writepid /dev/cpuset/foreground/tasks
diff --git a/drm/mediadrm/plugins/clearkey/hidl/android.hardware.drm@1.3-service.clearkey.rc b/drm/mediadrm/plugins/clearkey/hidl/android.hardware.drm@1.3-service.clearkey.rc
new file mode 100644
index 0000000..8130511
--- /dev/null
+++ b/drm/mediadrm/plugins/clearkey/hidl/android.hardware.drm@1.3-service.clearkey.rc
@@ -0,0 +1,14 @@
+service vendor.drm-clearkey-hal-1-3 /vendor/bin/hw/android.hardware.drm@1.3-service.clearkey
+    interface android.hardware.drm@1.0::ICryptoFactory clearkey
+    interface android.hardware.drm@1.0::IDrmFactory clearkey
+    interface android.hardware.drm@1.1::ICryptoFactory clearkey
+    interface android.hardware.drm@1.1::IDrmFactory clearkey
+    interface android.hardware.drm@1.2::ICryptoFactory clearkey
+    interface android.hardware.drm@1.2::IDrmFactory clearkey
+    interface android.hardware.drm@1.3::ICryptoFactory clearkey
+    interface android.hardware.drm@1.3::IDrmFactory clearkey
+    class hal
+    user media
+    group media mediadrm
+    ioprio rt 4
+    writepid /dev/cpuset/foreground/tasks
diff --git a/drm/mediadrm/plugins/clearkey/hidl/include/CreatePluginFactories.h b/drm/mediadrm/plugins/clearkey/hidl/include/CreatePluginFactories.h
index 6368f3d..c1c188e 100644
--- a/drm/mediadrm/plugins/clearkey/hidl/include/CreatePluginFactories.h
+++ b/drm/mediadrm/plugins/clearkey/hidl/include/CreatePluginFactories.h
@@ -17,17 +17,17 @@
 #ifndef CLEARKEY_CREATE_PLUGIN_FACTORIES_H_
 #define CLEARKEY_CREATE_PLUGIN_FACTORIES_H_
 
-#include <android/hardware/drm/1.2/ICryptoFactory.h>
-#include <android/hardware/drm/1.2/IDrmFactory.h>
+#include <android/hardware/drm/1.3/ICryptoFactory.h>
+#include <android/hardware/drm/1.3/IDrmFactory.h>
 
 namespace android {
 namespace hardware {
 namespace drm {
-namespace V1_2 {
+namespace V1_3 {
 namespace clearkey {
 
-using ::android::hardware::drm::V1_2::ICryptoFactory;
-using ::android::hardware::drm::V1_2::IDrmFactory;
+using ::android::hardware::drm::V1_3::ICryptoFactory;
+using ::android::hardware::drm::V1_3::IDrmFactory;
 
 extern "C" {
     IDrmFactory* createDrmFactory();
@@ -35,7 +35,7 @@
 }
 
 }  // namespace clearkey
-}  // namespace V1_2
+}  // namespace V1_3
 }  // namespace drm
 }  // namespace hardware
 }  // namespace android
diff --git a/drm/mediadrm/plugins/clearkey/hidl/include/CryptoFactory.h b/drm/mediadrm/plugins/clearkey/hidl/include/CryptoFactory.h
index 203bb2d..cb4811b 100644
--- a/drm/mediadrm/plugins/clearkey/hidl/include/CryptoFactory.h
+++ b/drm/mediadrm/plugins/clearkey/hidl/include/CryptoFactory.h
@@ -18,17 +18,17 @@
 #define CLEARKEY_CRYPTO_FACTORY_H_
 
 #include <android/hardware/drm/1.0/ICryptoPlugin.h>
-#include <android/hardware/drm/1.2/ICryptoFactory.h>
+#include <android/hardware/drm/1.3/ICryptoFactory.h>
 
 #include "ClearKeyTypes.h"
 
 namespace android {
 namespace hardware {
 namespace drm {
-namespace V1_2 {
+namespace V1_3 {
 namespace clearkey {
 
-using ::android::hardware::drm::V1_2::ICryptoFactory;
+using ::android::hardware::drm::V1_3::ICryptoFactory;
 using ::android::hardware::drm::V1_0::ICryptoPlugin;
 using ::android::hardware::hidl_array;
 using ::android::hardware::hidl_string;
@@ -52,7 +52,7 @@
 };
 
 } // namespace clearkey
-} // namespace V1_2
+} // namespace V1_3
 } // namespace drm
 } // namespace hardware
 } // namespace android
diff --git a/drm/mediadrm/plugins/clearkey/hidl/include/DrmFactory.h b/drm/mediadrm/plugins/clearkey/hidl/include/DrmFactory.h
index 4ca856d..403a8ec 100644
--- a/drm/mediadrm/plugins/clearkey/hidl/include/DrmFactory.h
+++ b/drm/mediadrm/plugins/clearkey/hidl/include/DrmFactory.h
@@ -18,16 +18,17 @@
 #define CLEARKEY_DRM_FACTORY_H_
 
 #include <android/hardware/drm/1.2/IDrmPlugin.h>
-#include <android/hardware/drm/1.2/IDrmFactory.h>
+#include <android/hardware/drm/1.3/IDrmFactory.h>
 
 #include "ClearKeyTypes.h"
 
 namespace android {
 namespace hardware {
 namespace drm {
-namespace V1_2 {
+namespace V1_3 {
 namespace clearkey {
 
+using ::android::hardware::drm::V1_1::SecurityLevel;
 using ::android::hardware::hidl_array;
 using ::android::hardware::hidl_string;
 using ::android::hardware::Return;
@@ -51,12 +52,15 @@
             const hidl_string& appPackageName,
             createPlugin_cb _hidl_cb) override;
 
+    Return<void> getSupportedCryptoSchemes(
+            getSupportedCryptoSchemes_cb _hidl_cb) override;
+
 private:
     CLEARKEY_DISALLOW_COPY_AND_ASSIGN(DrmFactory);
 };
 
 } // namespace clearkey
-} // namespace V1_2
+} // namespace V1_3
 } // namespace drm
 } // namespace hardware
 } // namespace android
diff --git a/drm/mediadrm/plugins/clearkey/hidl/manifest_android.hardware.drm@1.2-service.clearkey.xml b/drm/mediadrm/plugins/clearkey/hidl/manifest_android.hardware.drm@1.2-service.clearkey.xml
new file mode 100644
index 0000000..16cba11
--- /dev/null
+++ b/drm/mediadrm/plugins/clearkey/hidl/manifest_android.hardware.drm@1.2-service.clearkey.xml
@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2019 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<manifest version="1.0" type="device">
+    <hal format="hidl">
+        <name>android.hardware.drm</name>
+        <transport>hwbinder</transport>
+        <fqname>@1.2::ICryptoFactory/clearkey</fqname>
+        <fqname>@1.2::IDrmFactory/clearkey</fqname>
+    </hal>
+</manifest>
diff --git a/drm/mediadrm/plugins/clearkey/hidl/manifest_android.hardware.drm@1.3-service.clearkey.xml b/drm/mediadrm/plugins/clearkey/hidl/manifest_android.hardware.drm@1.3-service.clearkey.xml
new file mode 100644
index 0000000..229ee96
--- /dev/null
+++ b/drm/mediadrm/plugins/clearkey/hidl/manifest_android.hardware.drm@1.3-service.clearkey.xml
@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2019 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<manifest version="1.0" type="device">
+    <hal format="hidl">
+        <name>android.hardware.drm</name>
+        <transport>hwbinder</transport>
+        <fqname>@1.3::ICryptoFactory/clearkey</fqname>
+        <fqname>@1.3::IDrmFactory/clearkey</fqname>
+    </hal>
+</manifest>
diff --git a/drm/mediadrm/plugins/clearkey/hidl/service.cpp b/drm/mediadrm/plugins/clearkey/hidl/service.cpp
index b39ea01..b62baae 100644
--- a/drm/mediadrm/plugins/clearkey/hidl/service.cpp
+++ b/drm/mediadrm/plugins/clearkey/hidl/service.cpp
@@ -25,10 +25,10 @@
 using ::android::hardware::joinRpcThreadpool;
 using ::android::sp;
 
-using android::hardware::drm::V1_2::ICryptoFactory;
-using android::hardware::drm::V1_2::IDrmFactory;
-using android::hardware::drm::V1_2::clearkey::CryptoFactory;
-using android::hardware::drm::V1_2::clearkey::DrmFactory;
+using android::hardware::drm::V1_3::ICryptoFactory;
+using android::hardware::drm::V1_3::IDrmFactory;
+using android::hardware::drm::V1_3::clearkey::CryptoFactory;
+using android::hardware::drm::V1_3::clearkey::DrmFactory;
 
 int main(int /* argc */, char** /* argv */) {
     sp<IDrmFactory> drmFactory = new DrmFactory;
diff --git a/drm/mediadrm/plugins/clearkey/hidl/serviceLazy.cpp b/drm/mediadrm/plugins/clearkey/hidl/serviceLazy.cpp
index a510487..b3e0179 100644
--- a/drm/mediadrm/plugins/clearkey/hidl/serviceLazy.cpp
+++ b/drm/mediadrm/plugins/clearkey/hidl/serviceLazy.cpp
@@ -25,10 +25,10 @@
 using ::android::hardware::joinRpcThreadpool;
 using ::android::sp;
 
-using android::hardware::drm::V1_2::ICryptoFactory;
-using android::hardware::drm::V1_2::IDrmFactory;
-using android::hardware::drm::V1_2::clearkey::CryptoFactory;
-using android::hardware::drm::V1_2::clearkey::DrmFactory;
+using android::hardware::drm::V1_3::ICryptoFactory;
+using android::hardware::drm::V1_3::IDrmFactory;
+using android::hardware::drm::V1_3::clearkey::CryptoFactory;
+using android::hardware::drm::V1_3::clearkey::DrmFactory;
 using android::hardware::LazyServiceRegistrar;
 
 int main(int /* argc */, char** /* argv */) {
diff --git a/include/media/DataSource.h b/include/media/DataSource.h
index 8efa809..2abd5f5 100644
--- a/include/media/DataSource.h
+++ b/include/media/DataSource.h
@@ -22,7 +22,7 @@
 
 #include <android/IDataSource.h>
 #include <media/stagefright/MediaErrors.h>
-#include <media/DataSourceBase.h>
+#include <media/stagefright/DataSourceBase.h>
 #include <media/MediaExtractorPluginApi.h>
 #include <utils/Errors.h>
 #include <utils/RefBase.h>
diff --git a/include/media/DataSourceBase.h b/include/media/DataSourceBase.h
deleted file mode 120000
index d2ab2f1..0000000
--- a/include/media/DataSourceBase.h
+++ /dev/null
@@ -1 +0,0 @@
-stagefright/DataSourceBase.h
\ No newline at end of file
diff --git a/include/media/IMediaAnalyticsService.h b/include/media/IMediaAnalyticsService.h
deleted file mode 120000
index a596d60..0000000
--- a/include/media/IMediaAnalyticsService.h
+++ /dev/null
@@ -1 +0,0 @@
-../../media/libmediametrics/include/IMediaAnalyticsService.h
\ No newline at end of file
diff --git a/include/media/IMediaMetricsService.h b/include/media/IMediaMetricsService.h
new file mode 120000
index 0000000..84b99ee
--- /dev/null
+++ b/include/media/IMediaMetricsService.h
@@ -0,0 +1 @@
+../../media/libmediametrics/include/IMediaMetricsService.h
\ No newline at end of file
diff --git a/include/media/MediaAnalyticsItem.h b/include/media/MediaAnalyticsItem.h
deleted file mode 120000
index e8124e0..0000000
--- a/include/media/MediaAnalyticsItem.h
+++ /dev/null
@@ -1 +0,0 @@
-../../media/libmediametrics/include/MediaAnalyticsItem.h
\ No newline at end of file
diff --git a/include/media/MediaMetricsItem.h b/include/media/MediaMetricsItem.h
new file mode 120000
index 0000000..5438953
--- /dev/null
+++ b/include/media/MediaMetricsItem.h
@@ -0,0 +1 @@
+../../media/libmediametrics/include/MediaMetricsItem.h
\ No newline at end of file
diff --git a/include/media/MediaSource.h b/include/media/MediaSource.h
deleted file mode 120000
index 34bf65d..0000000
--- a/include/media/MediaSource.h
+++ /dev/null
@@ -1 +0,0 @@
-../../media/libstagefright/include/media/stagefright/MediaSource.h
\ No newline at end of file
diff --git a/include/soundtrigger/ISoundTrigger.h b/include/soundtrigger/ISoundTrigger.h
deleted file mode 100644
index c357caa..0000000
--- a/include/soundtrigger/ISoundTrigger.h
+++ /dev/null
@@ -1,60 +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_ISOUNDTRIGGER_H
-#define ANDROID_HARDWARE_ISOUNDTRIGGER_H
-
-#include <utils/RefBase.h>
-#include <binder/IInterface.h>
-#include <binder/Parcel.h>
-#include <binder/IMemory.h>
-#include <system/sound_trigger.h>
-
-namespace android {
-
-class ISoundTrigger : public IInterface
-{
-public:
-    DECLARE_META_INTERFACE(SoundTrigger);
-
-    virtual void detach() = 0;
-
-    virtual status_t loadSoundModel(const sp<IMemory>& modelMemory,
-                                    sound_model_handle_t *handle) = 0;
-
-    virtual status_t unloadSoundModel(sound_model_handle_t handle) = 0;
-
-    virtual status_t startRecognition(sound_model_handle_t handle,
-                                      const sp<IMemory>& dataMemory) = 0;
-    virtual status_t stopRecognition(sound_model_handle_t handle) = 0;
-    virtual status_t getModelState(sound_model_handle_t handle) = 0;
-
-};
-
-// ----------------------------------------------------------------------------
-
-class BnSoundTrigger: public BnInterface<ISoundTrigger>
-{
-public:
-    virtual status_t    onTransact( uint32_t code,
-                                    const Parcel& data,
-                                    Parcel* reply,
-                                    uint32_t flags = 0);
-};
-
-}; // namespace android
-
-#endif //ANDROID_HARDWARE_ISOUNDTRIGGER_H
diff --git a/include/soundtrigger/ISoundTriggerClient.h b/include/soundtrigger/ISoundTriggerClient.h
deleted file mode 100644
index 480429a..0000000
--- a/include/soundtrigger/ISoundTriggerClient.h
+++ /dev/null
@@ -1,53 +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_ISOUNDTRIGGER_CLIENT_H
-#define ANDROID_HARDWARE_ISOUNDTRIGGER_CLIENT_H
-
-#include <utils/RefBase.h>
-#include <binder/IInterface.h>
-#include <binder/Parcel.h>
-
-namespace android {
-
-class ISoundTriggerClient : public IInterface
-{
-public:
-
-    DECLARE_META_INTERFACE(SoundTriggerClient);
-
-    virtual void onRecognitionEvent(const sp<IMemory>& eventMemory) = 0;
-
-    virtual void onSoundModelEvent(const sp<IMemory>& eventMemory) = 0;
-
-    virtual void onServiceStateChange(const sp<IMemory>& eventMemory) = 0;
-
-};
-
-// ----------------------------------------------------------------------------
-
-class BnSoundTriggerClient : public BnInterface<ISoundTriggerClient>
-{
-public:
-    virtual status_t    onTransact( uint32_t code,
-                                    const Parcel& data,
-                                    Parcel* reply,
-                                    uint32_t flags = 0);
-};
-
-}; // namespace android
-
-#endif //ANDROID_HARDWARE_ISOUNDTRIGGER_CLIENT_H
diff --git a/include/soundtrigger/ISoundTriggerHwService.h b/include/soundtrigger/ISoundTriggerHwService.h
deleted file mode 100644
index 1faeb0f..0000000
--- a/include/soundtrigger/ISoundTriggerHwService.h
+++ /dev/null
@@ -1,61 +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_ISOUNDTRIGGER_SERVICE_H
-#define ANDROID_HARDWARE_ISOUNDTRIGGER_SERVICE_H
-
-#include <utils/RefBase.h>
-#include <binder/IInterface.h>
-#include <binder/Parcel.h>
-#include <system/sound_trigger.h>
-
-namespace android {
-
-class ISoundTrigger;
-class ISoundTriggerClient;
-
-class ISoundTriggerHwService : public IInterface
-{
-public:
-
-    DECLARE_META_INTERFACE(SoundTriggerHwService);
-
-    virtual status_t listModules(const String16& opPackageName,
-                                 struct sound_trigger_module_descriptor *modules,
-                                 uint32_t *numModules) = 0;
-
-    virtual status_t attach(const String16& opPackageName,
-                            const sound_trigger_module_handle_t handle,
-                            const sp<ISoundTriggerClient>& client,
-                            sp<ISoundTrigger>& module) = 0;
-
-    virtual status_t setCaptureState(bool active) = 0;
-};
-
-// ----------------------------------------------------------------------------
-
-class BnSoundTriggerHwService: public BnInterface<ISoundTriggerHwService>
-{
-public:
-    virtual status_t    onTransact( uint32_t code,
-                                    const Parcel& data,
-                                    Parcel* reply,
-                                    uint32_t flags = 0);
-};
-
-}; // namespace android
-
-#endif //ANDROID_HARDWARE_ISOUNDTRIGGER_SERVICE_H
diff --git a/include/soundtrigger/OWNERS b/include/soundtrigger/OWNERS
deleted file mode 100644
index e83f6b9..0000000
--- a/include/soundtrigger/OWNERS
+++ /dev/null
@@ -1,2 +0,0 @@
-elaurent@google.com
-thorntonc@google.com
diff --git a/include/soundtrigger/SoundTrigger.h b/include/soundtrigger/SoundTrigger.h
deleted file mode 100644
index ccc61dc..0000000
--- a/include/soundtrigger/SoundTrigger.h
+++ /dev/null
@@ -1,83 +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_SOUNDTRIGGER_H
-#define ANDROID_HARDWARE_SOUNDTRIGGER_H
-
-#include <binder/IBinder.h>
-#include <utils/threads.h>
-#include <soundtrigger/SoundTriggerCallback.h>
-#include <soundtrigger/ISoundTrigger.h>
-#include <soundtrigger/ISoundTriggerHwService.h>
-#include <soundtrigger/ISoundTriggerClient.h>
-#include <system/sound_trigger.h>
-
-namespace android {
-
-class MemoryDealer;
-
-class SoundTrigger : public BnSoundTriggerClient,
-                        public IBinder::DeathRecipient
-{
-public:
-
-    virtual ~SoundTrigger();
-
-    static  status_t listModules(const String16& opPackageName,
-                                 struct sound_trigger_module_descriptor *modules,
-                                 uint32_t *numModules);
-    static  sp<SoundTrigger> attach(const String16& opPackageName,
-                                    const sound_trigger_module_handle_t module,
-                                    const sp<SoundTriggerCallback>& callback);
-
-    static  status_t setCaptureState(bool active);
-
-            void detach();
-
-            status_t loadSoundModel(const sp<IMemory>& modelMemory,
-                                            sound_model_handle_t *handle);
-
-            status_t unloadSoundModel(sound_model_handle_t handle);
-
-            status_t startRecognition(sound_model_handle_t handle, const sp<IMemory>& dataMemory);
-            status_t stopRecognition(sound_model_handle_t handle);
-            status_t getModelState(sound_model_handle_t handle);
-
-            // BpSoundTriggerClient
-            virtual void onRecognitionEvent(const sp<IMemory>& eventMemory);
-            virtual void onSoundModelEvent(const sp<IMemory>& eventMemory);
-            virtual void onServiceStateChange(const sp<IMemory>& eventMemory);
-
-            //IBinder::DeathRecipient
-            virtual void binderDied(const wp<IBinder>& who);
-
-            static status_t stringToGuid(const char *str, sound_trigger_uuid_t *guid);
-            static status_t guidToString(const sound_trigger_uuid_t *guid,
-                                         char *str, size_t maxLen);
-
-private:
-            SoundTrigger(sound_trigger_module_handle_t module,
-                            const sp<SoundTriggerCallback>&);
-            static const sp<ISoundTriggerHwService> getSoundTriggerHwService();
-
-            Mutex                               mLock;
-            sp<ISoundTrigger>                   mISoundTrigger;
-            sp<SoundTriggerCallback>            mCallback;
-};
-
-}; // namespace android
-
-#endif //ANDROID_HARDWARE_SOUNDTRIGGER_H
diff --git a/include/soundtrigger/SoundTriggerCallback.h b/include/soundtrigger/SoundTriggerCallback.h
deleted file mode 100644
index b5277f2..0000000
--- a/include/soundtrigger/SoundTriggerCallback.h
+++ /dev/null
@@ -1,44 +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_SOUNDTRIGGER_CALLBACK_H
-#define ANDROID_HARDWARE_SOUNDTRIGGER_CALLBACK_H
-
-#include <utils/RefBase.h>
-#include <system/sound_trigger.h>
-
-namespace android {
-
-class SoundTriggerCallback : public RefBase
-{
-public:
-
-            SoundTriggerCallback() {}
-    virtual ~SoundTriggerCallback() {}
-
-    virtual void onRecognitionEvent(struct sound_trigger_recognition_event *event) = 0;
-
-    virtual void onSoundModelEvent(struct sound_trigger_model_event *event) = 0;
-
-    virtual void onServiceStateChange(sound_trigger_service_state_t state) = 0;
-
-    virtual void onServiceDied() = 0;
-
-};
-
-}; // namespace android
-
-#endif //ANDROID_HARDWARE_SOUNDTRIGGER_CALLBACK_H
diff --git a/media/audioserver/Android.mk b/media/audioserver/Android.mk
index 6697cb5..fcf7cb1 100644
--- a/media/audioserver/Android.mk
+++ b/media/audioserver/Android.mk
@@ -19,7 +19,6 @@
 	libmediautils \
 	libnbaio \
 	libnblog \
-	libsoundtriggerservice \
 	libutils \
 	libvibrator
 
@@ -33,28 +32,12 @@
 	frameworks/av/services/audiopolicy/service \
 	frameworks/av/services/medialog \
 	frameworks/av/services/oboeservice \
-	frameworks/av/services/soundtrigger \
 	frameworks/av/media/libaaudio/include \
 	frameworks/av/media/libaaudio/src \
 	frameworks/av/media/libaaudio/src/binding \
 	frameworks/av/media/libmedia \
 	external/sonic \
 
-# If AUDIOSERVER_MULTILIB in device.mk is non-empty then it is used to control
-# the LOCAL_MULTILIB for all audioserver exclusive libraries.
-# This is relevant for 64 bit architectures where either or both
-# 32 and 64 bit libraries may be built.
-#
-# AUDIOSERVER_MULTILIB may be set as follows:
-#   32      to build 32 bit audioserver libraries and 32 bit audioserver.
-#   64      to build 64 bit audioserver libraries and 64 bit audioserver.
-#   both    to build both 32 bit and 64 bit libraries,
-#           and use primary target architecture (32 or 64) for audioserver.
-#   first   to build libraries and audioserver for the primary target architecture only.
-#   <empty> to build both 32 and 64 bit libraries and primary target audioserver.
-
-LOCAL_MULTILIB := $(AUDIOSERVER_MULTILIB)
-
 LOCAL_MODULE := audioserver
 
 LOCAL_INIT_RC := audioserver.rc
diff --git a/media/audioserver/main_audioserver.cpp b/media/audioserver/main_audioserver.cpp
index db57248..4a2ac1d 100644
--- a/media/audioserver/main_audioserver.cpp
+++ b/media/audioserver/main_audioserver.cpp
@@ -36,7 +36,6 @@
 #include "utility/AAudioUtilities.h"
 #include "MediaLogService.h"
 #include "MediaUtils.h"
-#include "SoundTriggerHwService.h"
 
 using namespace android;
 
@@ -148,7 +147,6 @@
             AAudioService::instantiate();
         }
 
-        SoundTriggerHwService::instantiate();
         ProcessState::self()->startThreadPool();
         IPCThreadState::self()->joinThreadPool();
     }
diff --git a/media/codec2/components/cmds/codec2.cpp b/media/codec2/components/cmds/codec2.cpp
index 38eaf88..d6025de 100644
--- a/media/codec2/components/cmds/codec2.cpp
+++ b/media/codec2/components/cmds/codec2.cpp
@@ -34,7 +34,7 @@
 #include <media/DataSource.h>
 #include <mediadrm/ICrypto.h>
 #include <media/IMediaHTTPService.h>
-#include <media/MediaSource.h>
+#include <media/stagefright/MediaSource.h>
 #include <media/stagefright/foundation/ABuffer.h>
 #include <media/stagefright/foundation/ALooper.h>
 #include <media/stagefright/foundation/AMessage.h>
diff --git a/media/codec2/sfplugin/CCodecBufferChannel.cpp b/media/codec2/sfplugin/CCodecBufferChannel.cpp
index 7b8dac5..2bcb7e2 100644
--- a/media/codec2/sfplugin/CCodecBufferChannel.cpp
+++ b/media/codec2/sfplugin/CCodecBufferChannel.cpp
@@ -826,10 +826,8 @@
     bool secure = mComponent->getName().find(".secure") != std::string::npos;
 
     std::shared_ptr<C2AllocatorStore> allocatorStore = GetCodec2PlatformAllocatorStore();
-    int poolMask = property_get_int32(
-            "debug.stagefright.c2-poolmask",
-            1 << C2PlatformAllocatorStore::ION |
-            1 << C2PlatformAllocatorStore::BUFFERQUEUE);
+    int poolMask = GetCodec2PoolMask();
+    C2PlatformAllocatorStore::id_t preferredLinearId = GetPreferredLinearAllocatorId(poolMask);
 
     if (inputFormat != nullptr) {
         bool graphic = (iStreamFormat.value == C2BufferData::GRAPHIC);
@@ -839,7 +837,7 @@
 
             // set default allocator ID.
             pools->inputAllocatorId = (graphic) ? C2PlatformAllocatorStore::GRALLOC
-                                                : C2PlatformAllocatorStore::ION;
+                                                : preferredLinearId;
 
             // query C2PortAllocatorsTuning::input from component. If an allocator ID is obtained
             // from component, create the input block pool with given ID. Otherwise, use default IDs.
@@ -978,7 +976,7 @@
 
             // set default allocator ID.
             pools->outputAllocatorId = (graphic) ? C2PlatformAllocatorStore::GRALLOC
-                                                 : C2PlatformAllocatorStore::ION;
+                                                 : preferredLinearId;
 
             // query C2PortAllocatorsTuning::output from component, or use default allocator if
             // unsuccessful.
diff --git a/media/codec2/vndk/Android.bp b/media/codec2/vndk/Android.bp
index e0b3939..7723940 100644
--- a/media/codec2/vndk/Android.bp
+++ b/media/codec2/vndk/Android.bp
@@ -50,13 +50,8 @@
     ],
 
     shared_libs: [
-        "android.hardware.graphics.allocator@2.0",
-        "android.hardware.graphics.allocator@3.0",
-        "android.hardware.graphics.allocator@4.0",
         "android.hardware.graphics.bufferqueue@2.0",
-        "android.hardware.graphics.mapper@2.0",
-        "android.hardware.graphics.mapper@3.0",
-        "android.hardware.graphics.mapper@4.0",
+        "android.hardware.graphics.common@1.2",
         "android.hardware.media.bufferpool@2.0",
         "libbase",
         "libcutils",
@@ -73,6 +68,8 @@
         "libutils",
     ],
 
+    tidy: false, // b/146435095, clang-tidy segmentation fault
+
     cflags: [
         "-Werror",
         "-Wall",
diff --git a/media/codec2/vndk/C2AllocatorGralloc.cpp b/media/codec2/vndk/C2AllocatorGralloc.cpp
index 78ac355..3ac3d89 100644
--- a/media/codec2/vndk/C2AllocatorGralloc.cpp
+++ b/media/codec2/vndk/C2AllocatorGralloc.cpp
@@ -18,19 +18,21 @@
 #define LOG_TAG "C2AllocatorGralloc"
 #include <utils/Log.h>
 
-#include <android/hardware/graphics/allocator/2.0/IAllocator.h>
-#include <android/hardware/graphics/mapper/2.0/IMapper.h>
-#include <android/hardware/graphics/allocator/3.0/IAllocator.h>
-#include <android/hardware/graphics/mapper/3.0/IMapper.h>
-#include <android/hardware/graphics/allocator/4.0/IAllocator.h>
-#include <android/hardware/graphics/mapper/4.0/IMapper.h>
+#include <mutex>
+
+#include <android/hardware/graphics/common/1.2/types.h>
 #include <cutils/native_handle.h>
 #include <hardware/gralloc.h>
+#include <ui/GraphicBufferAllocator.h>
+#include <ui/GraphicBufferMapper.h>
 
 #include <C2AllocatorGralloc.h>
 #include <C2Buffer.h>
 #include <C2PlatformSupport.h>
 
+using ::android::hardware::hidl_handle;
+using PixelFormat4 = ::android::hardware::graphics::common::V1_2::PixelFormat;
+
 namespace android {
 
 namespace /* unnamed */ {
@@ -63,82 +65,9 @@
             (expected & PASSTHROUGH_USAGE_MASK));
 }
 
-using ::android::hardware::hidl_handle;
-using ::android::hardware::hidl_vec;
-using ::android::hardware::graphics::common::V1_0::BufferUsage;
-using PixelFormat2 = ::android::hardware::graphics::common::V1_0::PixelFormat;
-using PixelFormat3 = ::android::hardware::graphics::common::V1_2::PixelFormat;
-using PixelFormat4 = ::android::hardware::graphics::common::V1_2::PixelFormat;
-
-using IAllocator2 = ::android::hardware::graphics::allocator::V2_0::IAllocator;
-using BufferDescriptor2 = ::android::hardware::graphics::mapper::V2_0::BufferDescriptor;
-using Error2 = ::android::hardware::graphics::mapper::V2_0::Error;
-using IMapper2 = ::android::hardware::graphics::mapper::V2_0::IMapper;
-
-using IAllocator3 = ::android::hardware::graphics::allocator::V3_0::IAllocator;
-using BufferDescriptor3 = ::android::hardware::graphics::mapper::V3_0::BufferDescriptor;
-using Error3 = ::android::hardware::graphics::mapper::V3_0::Error;
-using IMapper3 = ::android::hardware::graphics::mapper::V3_0::IMapper;
-
-using IAllocator4 = ::android::hardware::graphics::allocator::V4_0::IAllocator;
-using BufferDescriptor4 = ::android::hardware::graphics::mapper::V4_0::BufferDescriptor;
-using Error4 = ::android::hardware::graphics::mapper::V4_0::Error;
-using IMapper4 = ::android::hardware::graphics::mapper::V4_0::IMapper;
-
 namespace /* unnamed */ {
 
-struct BufferDescriptorInfo2 {
-    IMapper2::BufferDescriptorInfo mapperInfo;
-    uint32_t stride;
-};
-
-struct BufferDescriptorInfo3 {
-    IMapper3::BufferDescriptorInfo mapperInfo;
-    uint32_t stride;
-};
-
-struct BufferDescriptorInfo4 {
-    IMapper4::BufferDescriptorInfo mapperInfo;
-    uint32_t stride;
-};
-
 /* ===================================== GRALLOC ALLOCATION ==================================== */
-c2_status_t maperr2error(Error2 maperr) {
-    switch (maperr) {
-        case Error2::NONE:           return C2_OK;
-        case Error2::BAD_DESCRIPTOR: return C2_BAD_VALUE;
-        case Error2::BAD_BUFFER:     return C2_BAD_VALUE;
-        case Error2::BAD_VALUE:      return C2_BAD_VALUE;
-        case Error2::NO_RESOURCES:   return C2_NO_MEMORY;
-        case Error2::UNSUPPORTED:    return C2_CANNOT_DO;
-    }
-    return C2_CORRUPTED;
-}
-
-c2_status_t maperr2error(Error3 maperr) {
-    switch (maperr) {
-        case Error3::NONE:           return C2_OK;
-        case Error3::BAD_DESCRIPTOR: return C2_BAD_VALUE;
-        case Error3::BAD_BUFFER:     return C2_BAD_VALUE;
-        case Error3::BAD_VALUE:      return C2_BAD_VALUE;
-        case Error3::NO_RESOURCES:   return C2_NO_MEMORY;
-        case Error3::UNSUPPORTED:    return C2_CANNOT_DO;
-    }
-    return C2_CORRUPTED;
-}
-
-c2_status_t maperr2error(Error4 maperr) {
-    switch (maperr) {
-        case Error4::NONE:           return C2_OK;
-        case Error4::BAD_DESCRIPTOR: return C2_BAD_VALUE;
-        case Error4::BAD_BUFFER:     return C2_BAD_VALUE;
-        case Error4::BAD_VALUE:      return C2_BAD_VALUE;
-        case Error4::NO_RESOURCES:   return C2_NO_MEMORY;
-        case Error4::UNSUPPORTED:    return C2_CANNOT_DO;
-    }
-    return C2_CORRUPTED;
-}
-
 bool native_handle_is_invalid(const native_handle_t *const handle) {
     // perform basic validation of a native handle
     if (handle == nullptr) {
@@ -334,21 +263,11 @@
 
     // internal methods
     // |handle| will be moved.
+
     C2AllocationGralloc(
-              const BufferDescriptorInfo2 &info,
-              const sp<IMapper2> &mapper,
-              hidl_handle &hidlHandle,
-              const C2HandleGralloc *const handle,
-              C2Allocator::id_t allocatorId);
-    C2AllocationGralloc(
-              const BufferDescriptorInfo3 &info,
-              const sp<IMapper3> &mapper,
-              hidl_handle &hidlHandle,
-              const C2HandleGralloc *const handle,
-              C2Allocator::id_t allocatorId);
-    C2AllocationGralloc(
-              const BufferDescriptorInfo4 &info,
-              const sp<IMapper4> &mapper,
+              uint32_t width, uint32_t height,
+              uint32_t format, uint32_t layerCount,
+              uint64_t grallocUsage, uint32_t stride,
               hidl_handle &hidlHandle,
               const C2HandleGralloc *const handle,
               C2Allocator::id_t allocatorId);
@@ -356,12 +275,12 @@
     c2_status_t status() const;
 
 private:
-    const BufferDescriptorInfo2 mInfo2{};
-    const sp<IMapper2> mMapper2{nullptr};
-    const BufferDescriptorInfo3 mInfo3{};
-    const sp<IMapper3> mMapper3{nullptr};
-    const BufferDescriptorInfo4 mInfo4{};
-    const sp<IMapper4> mMapper4{nullptr};
+    const uint32_t mWidth;
+    const uint32_t mHeight;
+    const uint32_t mFormat;
+    const uint32_t mLayerCount;
+    const uint64_t mGrallocUsage;
+    const uint32_t mStride;
     const hidl_handle mHidlHandle;
     const C2HandleGralloc *mHandle;
     buffer_handle_t mBuffer;
@@ -372,48 +291,19 @@
 };
 
 C2AllocationGralloc::C2AllocationGralloc(
-          const BufferDescriptorInfo2 &info,
-          const sp<IMapper2> &mapper,
+          uint32_t width, uint32_t height,
+          uint32_t format, uint32_t layerCount,
+          uint64_t grallocUsage, uint32_t stride,
           hidl_handle &hidlHandle,
           const C2HandleGralloc *const handle,
           C2Allocator::id_t allocatorId)
-    : C2GraphicAllocation(info.mapperInfo.width, info.mapperInfo.height),
-      mInfo2(info),
-      mMapper2(mapper),
-      mHidlHandle(std::move(hidlHandle)),
-      mHandle(handle),
-      mBuffer(nullptr),
-      mLockedHandle(nullptr),
-      mLocked(false),
-      mAllocatorId(allocatorId) {
-}
-
-C2AllocationGralloc::C2AllocationGralloc(
-          const BufferDescriptorInfo3 &info,
-          const sp<IMapper3> &mapper,
-          hidl_handle &hidlHandle,
-          const C2HandleGralloc *const handle,
-          C2Allocator::id_t allocatorId)
-    : C2GraphicAllocation(info.mapperInfo.width, info.mapperInfo.height),
-      mInfo3(info),
-      mMapper3(mapper),
-      mHidlHandle(std::move(hidlHandle)),
-      mHandle(handle),
-      mBuffer(nullptr),
-      mLockedHandle(nullptr),
-      mLocked(false),
-      mAllocatorId(allocatorId) {
-}
-
-C2AllocationGralloc::C2AllocationGralloc(
-          const BufferDescriptorInfo4 &info,
-          const sp<IMapper4> &mapper,
-          hidl_handle &hidlHandle,
-          const C2HandleGralloc *const handle,
-          C2Allocator::id_t allocatorId)
-    : C2GraphicAllocation(info.mapperInfo.width, info.mapperInfo.height),
-      mInfo4(info),
-      mMapper4(mapper),
+    : C2GraphicAllocation(width, height),
+      mWidth(width),
+      mHeight(height),
+      mFormat(format),
+      mLayerCount(layerCount),
+      mGrallocUsage(grallocUsage),
+      mStride(stride),
       mHidlHandle(std::move(hidlHandle)),
       mHandle(handle),
       mBuffer(nullptr),
@@ -429,23 +319,10 @@
         unmap(addr, C2Rect(), nullptr);
     }
     if (mBuffer) {
-        if (mMapper2) {
-            if (!mMapper2->freeBuffer(const_cast<native_handle_t *>(
-                    mBuffer)).isOk()) {
-                ALOGE("failed transaction: freeBuffer");
-            }
-        } else if (mMapper3) {
-            if (!mMapper3->freeBuffer(const_cast<native_handle_t *>(
-                    mBuffer)).isOk()) {
-                ALOGE("failed transaction: freeBuffer");
-            }
-        } else {
-            if (!mMapper4->freeBuffer(const_cast<native_handle_t *>(
-                    mBuffer)).isOk()) {
-                ALOGE("failed transaction: freeBuffer");
-            }
+        status_t err = GraphicBufferMapper::get().freeBuffer(mBuffer);
+        if (err) {
+            ALOGE("failed transaction: freeBuffer");
         }
-
     }
     if (mHandle) {
         native_handle_delete(
@@ -466,7 +343,7 @@
           (long long)usage.expected, (long long)grallocUsage);
 
     // TODO
-    (void) fence;
+    (void)fence;
 
     std::lock_guard<std::mutex> lock(mMappedLock);
     if (mBuffer && mLocked) {
@@ -478,45 +355,13 @@
         return C2_BAD_VALUE;
     }
 
-    c2_status_t err = C2_OK;
     if (!mBuffer) {
-        if (mMapper2) {
-            if (!mMapper2->importBuffer(
-                    mHidlHandle, [&err, this](const auto &maperr, const auto &buffer) {
-                        err = maperr2error(maperr);
-                        if (err == C2_OK) {
-                            mBuffer = static_cast<buffer_handle_t>(buffer);
-                        }
-                    }).isOk()) {
-                ALOGE("failed transaction: importBuffer");
-                return C2_CORRUPTED;
-            }
-        } else if (mMapper3) {
-            if (!mMapper3->importBuffer(
-                    mHidlHandle, [&err, this](const auto &maperr, const auto &buffer) {
-                        err = maperr2error(maperr);
-                        if (err == C2_OK) {
-                            mBuffer = static_cast<buffer_handle_t>(buffer);
-                        }
-                    }).isOk()) {
-                ALOGE("failed transaction: importBuffer (@3.0)");
-                return C2_CORRUPTED;
-            }
-        } else {
-            if (!mMapper4->importBuffer(
-                    mHidlHandle, [&err, this](const auto &maperr, const auto &buffer) {
-                        err = maperr2error(maperr);
-                        if (err == C2_OK) {
-                            mBuffer = static_cast<buffer_handle_t>(buffer);
-                        }
-                    }).isOk()) {
-                ALOGE("failed transaction: importBuffer (@4.0)");
-                return C2_CORRUPTED;
-            }
-        }
-        if (err != C2_OK) {
-            ALOGD("importBuffer failed: %d", err);
-            return err;
+        status_t err = GraphicBufferMapper::get().importBuffer(
+                            mHidlHandle.getNativeHandle(), mWidth, mHeight, mLayerCount,
+                            mFormat, mGrallocUsage, mStride, &mBuffer);
+        if (err) {
+            ALOGE("failed transaction: importBuffer");
+            return C2_CORRUPTED;
         }
         if (mBuffer == nullptr) {
             ALOGD("importBuffer returned null buffer");
@@ -528,96 +373,26 @@
         if (mHandle) {
             mHandle->getIgbpData(&generation, &igbp_id, &igbp_slot);
         }
-        if (mMapper2) {
-            mLockedHandle = C2HandleGralloc::WrapAndMoveNativeHandle(
-                    mBuffer, mInfo2.mapperInfo.width, mInfo2.mapperInfo.height,
-                    (uint32_t)mInfo2.mapperInfo.format, mInfo2.mapperInfo.usage,
-                    mInfo2.stride, generation, igbp_id, igbp_slot);
-        } else if (mMapper3) {
-            mLockedHandle = C2HandleGralloc::WrapAndMoveNativeHandle(
-                    mBuffer, mInfo3.mapperInfo.width, mInfo3.mapperInfo.height,
-                    (uint32_t)mInfo3.mapperInfo.format, mInfo3.mapperInfo.usage,
-                    mInfo3.stride, generation, igbp_id, igbp_slot);
-        } else {
-            mLockedHandle = C2HandleGralloc::WrapAndMoveNativeHandle(
-                    mBuffer, mInfo4.mapperInfo.width, mInfo4.mapperInfo.height,
-                    (uint32_t)mInfo4.mapperInfo.format, mInfo4.mapperInfo.usage,
-                    mInfo4.stride, generation, igbp_id, igbp_slot);
-        }
-    }
 
-    PixelFormat4 format;
-    if (mMapper2) {
-        format = PixelFormat4(mInfo2.mapperInfo.format);
-    } else if (mMapper3) {
-        format = PixelFormat4(mInfo3.mapperInfo.format);
-    } else {
-        format = PixelFormat4(mInfo4.mapperInfo.format);
+        mLockedHandle = C2HandleGralloc::WrapAndMoveNativeHandle(
+                mBuffer, mWidth, mHeight, mFormat, mGrallocUsage,
+                mStride, generation, igbp_id, igbp_slot);
     }
-    switch (format) {
-        case PixelFormat4::RGBA_1010102: {
+    switch (mFormat) {
+        case static_cast<uint32_t>(PixelFormat4::RGBA_1010102): {
             // TRICKY: this is used for media as YUV444 in the case when it is queued directly to a
             // Surface. In all other cases it is RGBA. We don't know which case it is here, so
             // default to YUV for now.
             void *pointer = nullptr;
-            if (mMapper2) {
-                if (!mMapper2->lock(
-                        const_cast<native_handle_t *>(mBuffer),
-                        grallocUsage,
-                        { (int32_t)rect.left, (int32_t)rect.top,
-                          (int32_t)rect.width, (int32_t)rect.height },
-                        // TODO: fence
-                        hidl_handle(),
-                        [&err, &pointer](const auto &maperr, const auto &mapPointer) {
-                            err = maperr2error(maperr);
-                            if (err == C2_OK) {
-                                pointer = mapPointer;
-                            }
-                        }).isOk()) {
-                    ALOGE("failed transaction: lock(RGBA_1010102)");
-                    return C2_CORRUPTED;
-                }
-            } else if (mMapper3) {
-                if (!mMapper3->lock(
-                        const_cast<native_handle_t *>(mBuffer),
-                        grallocUsage,
-                        { (int32_t)rect.left, (int32_t)rect.top,
-                          (int32_t)rect.width, (int32_t)rect.height },
-                        // TODO: fence
-                        hidl_handle(),
-                        [&err, &pointer](const auto &maperr, const auto &mapPointer,
-                                         int32_t bytesPerPixel, int32_t bytesPerStride) {
-                            err = maperr2error(maperr);
-                            if (err == C2_OK) {
-                                pointer = mapPointer;
-                            }
-                            (void)bytesPerPixel;
-                            (void)bytesPerStride;
-                        }).isOk()) {
-                    ALOGE("failed transaction: lock(RGBA_1010102) (@3.0)");
-                    return C2_CORRUPTED;
-                }
-            } else {
-                if (!mMapper4->lock(
-                        const_cast<native_handle_t *>(mBuffer),
-                        grallocUsage,
-                        { (int32_t)rect.left, (int32_t)rect.top,
-                          (int32_t)rect.width, (int32_t)rect.height },
-                        // TODO: fence
-                        hidl_handle(),
-                        [&err, &pointer](const auto &maperr, const auto &mapPointer) {
-                            err = maperr2error(maperr);
-                            if (err == C2_OK) {
-                                pointer = mapPointer;
-                            }
-                        }).isOk()) {
-                    ALOGE("failed transaction: lock(RGBA_1010102) (@4.0)");
-                    return C2_CORRUPTED;
-                }
-            }
-            if (err != C2_OK) {
-                ALOGD("lock failed: %d", err);
-                return err;
+            // TODO: fence
+            status_t err = GraphicBufferMapper::get().lock(
+                                const_cast<native_handle_t *>(mBuffer), grallocUsage,
+                                { (int32_t)rect.left, (int32_t)rect.top,
+                                  (int32_t)rect.width, (int32_t)rect.height },
+                                &pointer);
+            if (err) {
+                ALOGE("failed transaction: lock(RGBA_1010102)");
+                return C2_CORRUPTED;
             }
             // treat as 32-bit values
             addr[C2PlanarLayout::PLANE_Y] = (uint8_t *)pointer;
@@ -627,18 +402,10 @@
             layout->type = C2PlanarLayout::TYPE_YUVA;
             layout->numPlanes = 4;
             layout->rootPlanes = 1;
-            int32_t stride;
-            if (mMapper2) {
-                stride = int32_t(mInfo2.stride);
-            } else if (mMapper3) {
-                stride = int32_t(mInfo3.stride);
-            } else {
-                stride = int32_t(mInfo4.stride);
-            }
             layout->planes[C2PlanarLayout::PLANE_Y] = {
                 C2PlaneInfo::CHANNEL_Y,         // channel
                 4,                              // colInc
-                4 * stride,                     // rowInc
+                static_cast<int32_t>(4 * mStride), // rowInc
                 1,                              // mColSampling
                 1,                              // mRowSampling
                 32,                             // allocatedDepth
@@ -651,7 +418,7 @@
             layout->planes[C2PlanarLayout::PLANE_U] = {
                 C2PlaneInfo::CHANNEL_CB,         // channel
                 4,                              // colInc
-                4 * stride,                     // rowInc
+                static_cast<int32_t>(4 * mStride), // rowInc
                 1,                              // mColSampling
                 1,                              // mRowSampling
                 32,                             // allocatedDepth
@@ -664,7 +431,7 @@
             layout->planes[C2PlanarLayout::PLANE_V] = {
                 C2PlaneInfo::CHANNEL_CR,         // channel
                 4,                              // colInc
-                4 * stride,                     // rowInc
+                static_cast<int32_t>(4 * mStride), // rowInc
                 1,                              // mColSampling
                 1,                              // mRowSampling
                 32,                             // allocatedDepth
@@ -677,7 +444,7 @@
             layout->planes[C2PlanarLayout::PLANE_A] = {
                 C2PlaneInfo::CHANNEL_A,         // channel
                 4,                              // colInc
-                4 * stride,                     // rowInc
+                static_cast<int32_t>(4 * mStride), // rowInc
                 1,                              // mColSampling
                 1,                              // mRowSampling
                 32,                             // allocatedDepth
@@ -690,69 +457,20 @@
             break;
         }
 
-        case PixelFormat4::RGBA_8888:
+        case static_cast<uint32_t>(PixelFormat4::RGBA_8888):
             // TODO: alpha channel
             // fall-through
-        case PixelFormat4::RGBX_8888: {
+        case static_cast<uint32_t>(PixelFormat4::RGBX_8888): {
             void *pointer = nullptr;
-            if (mMapper2) {
-                if (!mMapper2->lock(
-                        const_cast<native_handle_t *>(mBuffer),
-                        grallocUsage,
-                        { (int32_t)rect.left, (int32_t)rect.top,
-                          (int32_t)rect.width, (int32_t)rect.height },
-                        // TODO: fence
-                        hidl_handle(),
-                        [&err, &pointer](const auto &maperr, const auto &mapPointer) {
-                            err = maperr2error(maperr);
-                            if (err == C2_OK) {
-                                pointer = mapPointer;
-                            }
-                        }).isOk()) {
-                    ALOGE("failed transaction: lock(RGBA_8888)");
-                    return C2_CORRUPTED;
-                }
-            } else if (mMapper3) {
-                if (!mMapper3->lock(
-                        const_cast<native_handle_t *>(mBuffer),
-                        grallocUsage,
-                        { (int32_t)rect.left, (int32_t)rect.top,
-                          (int32_t)rect.width, (int32_t)rect.height },
-                        // TODO: fence
-                        hidl_handle(),
-                        [&err, &pointer](const auto &maperr, const auto &mapPointer,
-                                         int32_t bytesPerPixel, int32_t bytesPerStride) {
-                            err = maperr2error(maperr);
-                            if (err == C2_OK) {
-                                pointer = mapPointer;
-                            }
-                            (void)bytesPerPixel;
-                            (void)bytesPerStride;
-                        }).isOk()) {
-                    ALOGE("failed transaction: lock(RGBA_8888) (@3.0)");
-                    return C2_CORRUPTED;
-                }
-            } else {
-                if (!mMapper4->lock(
-                        const_cast<native_handle_t *>(mBuffer),
-                        grallocUsage,
-                        { (int32_t)rect.left, (int32_t)rect.top,
-                          (int32_t)rect.width, (int32_t)rect.height },
-                        // TODO: fence
-                        hidl_handle(),
-                        [&err, &pointer](const auto &maperr, const auto &mapPointer) {
-                            err = maperr2error(maperr);
-                            if (err == C2_OK) {
-                                pointer = mapPointer;
-                            }
-                        }).isOk()) {
-                    ALOGE("failed transaction: lock(RGBA_8888) (@4.0)");
-                    return C2_CORRUPTED;
-                }
-            }
-            if (err != C2_OK) {
-                ALOGD("lock failed: %d", err);
-                return err;
+            // TODO: fence
+            status_t err = GraphicBufferMapper::get().lock(
+                                const_cast<native_handle_t*>(mBuffer), grallocUsage,
+                                { (int32_t)rect.left, (int32_t)rect.top,
+                                  (int32_t)rect.width, (int32_t)rect.height },
+                                &pointer);
+            if (err) {
+                ALOGE("failed transaction: lock(RGBA_8888)");
+                return C2_CORRUPTED;
             }
             addr[C2PlanarLayout::PLANE_R] = (uint8_t *)pointer;
             addr[C2PlanarLayout::PLANE_G] = (uint8_t *)pointer + 1;
@@ -760,18 +478,10 @@
             layout->type = C2PlanarLayout::TYPE_RGB;
             layout->numPlanes = 3;
             layout->rootPlanes = 1;
-            int32_t stride;
-            if (mMapper2) {
-                stride = int32_t(mInfo2.stride);
-            } else if (mMapper3) {
-                stride = int32_t(mInfo3.stride);
-            } else {
-                stride = int32_t(mInfo4.stride);
-            }
             layout->planes[C2PlanarLayout::PLANE_R] = {
                 C2PlaneInfo::CHANNEL_R,         // channel
                 4,                              // colInc
-                4 * stride,                     // rowInc
+                static_cast<int32_t>(4 * mStride), // rowInc
                 1,                              // mColSampling
                 1,                              // mRowSampling
                 8,                              // allocatedDepth
@@ -784,7 +494,7 @@
             layout->planes[C2PlanarLayout::PLANE_G] = {
                 C2PlaneInfo::CHANNEL_G,         // channel
                 4,                              // colInc
-                4 * stride,                     // rowInc
+                static_cast<int32_t>(4 * mStride), // rowInc
                 1,                              // mColSampling
                 1,                              // mRowSampling
                 8,                              // allocatedDepth
@@ -797,7 +507,7 @@
             layout->planes[C2PlanarLayout::PLANE_B] = {
                 C2PlaneInfo::CHANNEL_B,         // channel
                 4,                              // colInc
-                4 * stride,                     // rowInc
+                static_cast<int32_t>(4 * mStride), // rowInc
                 1,                              // mColSampling
                 1,                              // mRowSampling
                 8,                              // allocatedDepth
@@ -810,142 +520,23 @@
             break;
         }
 
-        case PixelFormat4::BLOB: {
-            void* pointer = nullptr;
-            if (mMapper2) {
-                if (!mMapper2->lock(const_cast<native_handle_t*>(mBuffer), grallocUsage,
-                                    {(int32_t)rect.left, (int32_t)rect.top, (int32_t)rect.width,
-                                     (int32_t)rect.height},
-                                    // TODO: fence
-                                    hidl_handle(),
-                                    [&err, &pointer](const auto& maperr, const auto& mapPointer) {
-                                        err = maperr2error(maperr);
-                                        if (err == C2_OK) {
-                                            pointer = mapPointer;
-                                        }
-                                    }).isOk()) {
-                    ALOGE("failed transaction: lock(BLOB)");
-                    return C2_CORRUPTED;
-                }
-            } else if (mMapper3) {
-                if (!mMapper3->lock(
-                        const_cast<native_handle_t*>(mBuffer),
-                        grallocUsage,
-                        { (int32_t)rect.left, (int32_t)rect.top,
-                          (int32_t)rect.width, (int32_t)rect.height },
-                        // TODO: fence
-                        hidl_handle(),
-                        [&err, &pointer](const auto &maperr, const auto &mapPointer,
-                                         int32_t bytesPerPixel, int32_t bytesPerStride) {
-                            err = maperr2error(maperr);
-                            if (err == C2_OK) {
-                                pointer = mapPointer;
-                            }
-                            (void)bytesPerPixel;
-                            (void)bytesPerStride;
-                        }).isOk()) {
-                    ALOGE("failed transaction: lock(BLOB) (@3.0)");
-                    return C2_CORRUPTED;
-                }
-            } else {
-                if (!mMapper4->lock(
-                        const_cast<native_handle_t *>(mBuffer),
-                        grallocUsage,
-                        { (int32_t)rect.left, (int32_t)rect.top,
-                          (int32_t)rect.width, (int32_t)rect.height },
-                        // TODO: fence
-                        hidl_handle(),
-                        [&err, &pointer](const auto &maperr, const auto &mapPointer) {
-                            err = maperr2error(maperr);
-                            if (err == C2_OK) {
-                                pointer = mapPointer;
-                            }
-                        }).isOk()) {
-                    ALOGE("failed transaction: lock(BLOB) (@4.0)");
-                    return C2_CORRUPTED;
-                }
-            }
-            if (err != C2_OK) {
-                ALOGD("lock failed: %d", err);
-                return err;
-            }
-
-            *addr = static_cast<uint8_t*>(pointer);
-            break;
-        }
-
-        case PixelFormat4::YCBCR_420_888:
+        case static_cast<uint32_t>(PixelFormat4::YCBCR_420_888):
             // fall-through
-        case PixelFormat4::YV12:
+        case static_cast<uint32_t>(PixelFormat4::YV12):
             // fall-through
         default: {
-            struct YCbCrLayout {
-                void* y;
-                void* cb;
-                void* cr;
-                uint32_t yStride;
-                uint32_t cStride;
-                uint32_t chromaStep;
-            };
-            YCbCrLayout ycbcrLayout;
-            if (mMapper2) {
-                if (!mMapper2->lockYCbCr(
-                        const_cast<native_handle_t *>(mBuffer), grallocUsage,
+            android_ycbcr ycbcrLayout;
+
+            status_t err = GraphicBufferMapper::get().lockYCbCr(
+                        const_cast<native_handle_t*>(mBuffer), grallocUsage,
                         { (int32_t)rect.left, (int32_t)rect.top,
                           (int32_t)rect.width, (int32_t)rect.height },
-                        // TODO: fence
-                        hidl_handle(),
-                        [&err, &ycbcrLayout](const auto &maperr, const auto &mapLayout) {
-                            err = maperr2error(maperr);
-                            if (err == C2_OK) {
-                                ycbcrLayout = YCbCrLayout{
-                                        mapLayout.y,
-                                        mapLayout.cb,
-                                        mapLayout.cr,
-                                        mapLayout.yStride,
-                                        mapLayout.cStride,
-                                        mapLayout.chromaStep};
-                            }
-                        }).isOk()) {
-                    ALOGE("failed transaction: lockYCbCr");
-                    return C2_CORRUPTED;
-                }
-            } else if (mMapper3) {
-                if (!mMapper3->lockYCbCr(
-                        const_cast<native_handle_t *>(mBuffer), grallocUsage,
-                        { (int32_t)rect.left, (int32_t)rect.top,
-                          (int32_t)rect.width, (int32_t)rect.height },
-                        // TODO: fence
-                        hidl_handle(),
-                        [&err, &ycbcrLayout](const auto &maperr, const auto &mapLayout) {
-                            err = maperr2error(maperr);
-                            if (err == C2_OK) {
-                                ycbcrLayout = YCbCrLayout{
-                                        mapLayout.y,
-                                        mapLayout.cb,
-                                        mapLayout.cr,
-                                        mapLayout.yStride,
-                                        mapLayout.cStride,
-                                        mapLayout.chromaStep};
-                            }
-                        }).isOk()) {
-                    ALOGE("failed transaction: lockYCbCr (@3.0)");
-                    return C2_CORRUPTED;
-                }
-            } else {
-                // No device currently supports IMapper 4.0 so it is safe to just return an error
-                // code here.
-                //
-                // This will be supported by a combination of lock and BufferMetadata getters.
-                // We are going to refactor all the IAllocator/IMapper versioning code into a
-                // shared library. We will then add the IMapper 4.0 lockYCbCr support then.
-                ALOGE("failed transaction: lockYCbCr (@4.0)");
+                        &ycbcrLayout);
+            if (err) {
+                ALOGE("failed transaction: lockYCbCr");
                 return C2_CORRUPTED;
             }
-            if (err != C2_OK) {
-                ALOGD("lockYCbCr failed: %d", err);
-                return err;
-            }
+
             addr[C2PlanarLayout::PLANE_Y] = (uint8_t *)ycbcrLayout.y;
             addr[C2PlanarLayout::PLANE_U] = (uint8_t *)ycbcrLayout.cb;
             addr[C2PlanarLayout::PLANE_V] = (uint8_t *)ycbcrLayout.cr;
@@ -955,7 +546,7 @@
             layout->planes[C2PlanarLayout::PLANE_Y] = {
                 C2PlaneInfo::CHANNEL_Y,         // channel
                 1,                              // colInc
-                (int32_t)ycbcrLayout.yStride,   // rowInc
+                (int32_t)ycbcrLayout.ystride,   // rowInc
                 1,                              // mColSampling
                 1,                              // mRowSampling
                 8,                              // allocatedDepth
@@ -967,8 +558,8 @@
             };
             layout->planes[C2PlanarLayout::PLANE_U] = {
                 C2PlaneInfo::CHANNEL_CB,          // channel
-                (int32_t)ycbcrLayout.chromaStep,  // colInc
-                (int32_t)ycbcrLayout.cStride,     // rowInc
+                (int32_t)ycbcrLayout.chroma_step, // colInc
+                (int32_t)ycbcrLayout.cstride,     // rowInc
                 2,                                // mColSampling
                 2,                                // mRowSampling
                 8,                                // allocatedDepth
@@ -980,8 +571,8 @@
             };
             layout->planes[C2PlanarLayout::PLANE_V] = {
                 C2PlaneInfo::CHANNEL_CR,          // channel
-                (int32_t)ycbcrLayout.chromaStep,  // colInc
-                (int32_t)ycbcrLayout.cStride,     // rowInc
+                (int32_t)ycbcrLayout.chroma_step, // colInc
+                (int32_t)ycbcrLayout.cstride,     // rowInc
                 2,                                // mColSampling
                 2,                                // mRowSampling
                 8,                                // allocatedDepth
@@ -993,11 +584,11 @@
             };
             // handle interleaved formats
             intptr_t uvOffset = addr[C2PlanarLayout::PLANE_V] - addr[C2PlanarLayout::PLANE_U];
-            if (uvOffset > 0 && uvOffset < (intptr_t)ycbcrLayout.chromaStep) {
+            if (uvOffset > 0 && uvOffset < (intptr_t)ycbcrLayout.chroma_step) {
                 layout->rootPlanes = 2;
                 layout->planes[C2PlanarLayout::PLANE_V].rootIx = C2PlanarLayout::PLANE_U;
                 layout->planes[C2PlanarLayout::PLANE_V].offset = uvOffset;
-            } else if (uvOffset < 0 && uvOffset > -(intptr_t)ycbcrLayout.chromaStep) {
+            } else if (uvOffset < 0 && uvOffset > -(intptr_t)ycbcrLayout.chroma_step) {
                 layout->rootPlanes = 2;
                 layout->planes[C2PlanarLayout::PLANE_U].rootIx = C2PlanarLayout::PLANE_V;
                 layout->planes[C2PlanarLayout::PLANE_U].offset = -uvOffset;
@@ -1015,59 +606,18 @@
     // TODO: check addr and size, use fence
     (void)addr;
     (void)rect;
+    (void)fence;
 
     std::lock_guard<std::mutex> lock(mMappedLock);
-    c2_status_t err = C2_OK;
-    if (mMapper2) {
-        if (!mMapper2->unlock(
-                const_cast<native_handle_t *>(mBuffer),
-                [&err, &fence](const auto &maperr, const auto &releaseFence) {
-                    // TODO
-                    (void) fence;
-                    (void) releaseFence;
-                    err = maperr2error(maperr);
-                    if (err == C2_OK) {
-                        // TODO: fence
-                    }
-                }).isOk()) {
-            ALOGE("failed transaction: unlock");
-            return C2_CORRUPTED;
-        }
-    } else if (mMapper3) {
-        if (!mMapper3->unlock(
-                const_cast<native_handle_t *>(mBuffer),
-                [&err, &fence](const auto &maperr, const auto &releaseFence) {
-                    // TODO
-                    (void) fence;
-                    (void) releaseFence;
-                    err = maperr2error(maperr);
-                    if (err == C2_OK) {
-                        // TODO: fence
-                    }
-                }).isOk()) {
-            ALOGE("failed transaction: unlock (@3.0)");
-            return C2_CORRUPTED;
-        }
-    } else {
-        if (!mMapper4->unlock(
-                const_cast<native_handle_t *>(mBuffer),
-                [&err, &fence](const auto &maperr, const auto &releaseFence) {
-                    // TODO
-                    (void) fence;
-                    (void) releaseFence;
-                    err = maperr2error(maperr);
-                    if (err == C2_OK) {
-                        // TODO: fence
-                    }
-                }).isOk()) {
-            ALOGE("failed transaction: unlock (@4.0)");
-            return C2_CORRUPTED;
-        }
+    // TODO: fence
+    status_t err = GraphicBufferMapper::get().unlock(mBuffer);
+    if (err) {
+        ALOGE("failed transaction: unlock");
+        return C2_CORRUPTED;
     }
-    if (err == C2_OK) {
-        mLocked = false;
-    }
-    return err;
+
+    mLocked = false;
+    return C2_OK;
 }
 
 bool C2AllocationGralloc::equals(const std::shared_ptr<const C2GraphicAllocation> &other) const {
@@ -1104,12 +654,6 @@
 private:
     std::shared_ptr<C2Allocator::Traits> mTraits;
     c2_status_t mInit;
-    sp<IAllocator2> mAllocator2;
-    sp<IMapper2> mMapper2;
-    sp<IAllocator3> mAllocator3;
-    sp<IMapper3> mMapper3;
-    sp<IAllocator4> mAllocator4;
-    sp<IMapper4> mMapper4;
     const bool mBufferQueue;
 };
 
@@ -1127,27 +671,6 @@
     C2MemoryUsage minUsage = { 0, 0 }, maxUsage = { ~(uint64_t)0, ~(uint64_t)0 };
     Traits traits = { "android.allocator.gralloc", id, C2Allocator::GRAPHIC, minUsage, maxUsage };
     mTraits = std::make_shared<C2Allocator::Traits>(traits);
-
-    // gralloc allocator is a singleton, so all objects share a global service
-    mAllocator4 = IAllocator4::getService();
-    mMapper4 = IMapper4::getService();
-    if (!mAllocator4 || !mMapper4) {
-        mAllocator4 = nullptr;
-        mMapper4 = nullptr;
-        mAllocator3 = IAllocator3::getService();
-        mMapper3 = IMapper3::getService();
-        if (!mAllocator3 || !mMapper3) {
-            mAllocator3 = nullptr;
-            mMapper3 = nullptr;
-            mAllocator2 = IAllocator2::getService();
-            mMapper2 = IMapper2::getService();
-            if (!mAllocator2 || !mMapper2) {
-                mAllocator2 = nullptr;
-                mMapper2 = nullptr;
-                mInit = C2_CORRUPTED;
-            }
-        }
-    }
 }
 
 c2_status_t C2AllocatorGralloc::Impl::newGraphicAllocation(
@@ -1157,257 +680,59 @@
     ALOGV("allocating buffer with usage %#llx => %#llx",
           (long long)usage.expected, (long long)grallocUsage);
 
-    c2_status_t err = C2_OK;
-    hidl_handle buffer{};
+    buffer_handle_t buffer;
 
-    if (mMapper2) {
-        BufferDescriptorInfo2 info = {
-            {
-                width,
-                height,
-                1u,  // layerCount
-                PixelFormat2(format),
-                grallocUsage,
-            },
-            0u,  // stride placeholder
-        };
-        BufferDescriptor2 desc;
-        if (!mMapper2->createDescriptor(
-                info.mapperInfo, [&err, &desc](const auto &maperr, const auto &descriptor) {
-                    err = maperr2error(maperr);
-                    if (err == C2_OK) {
-                        desc = descriptor;
-                    }
-                }).isOk()) {
-            ALOGE("failed transaction: createDescriptor");
-            return C2_CORRUPTED;
-        }
-        if (err != C2_OK) {
-            return err;
-        }
+    uint32_t stride = 0;
 
-        // IAllocator shares IMapper error codes.
-        if (!mAllocator2->allocate(
-                desc,
-                1u,
-                [&err, &buffer, &info](const auto &maperr, const auto &stride, auto &buffers) {
-                    err = maperr2error(maperr);
-                    if (err != C2_OK) {
-                        return;
-                    }
-                    if (buffers.size() != 1u) {
-                        err = C2_CORRUPTED;
-                        return;
-                    }
-                    info.stride = stride;
-                    buffer = buffers[0];
-                }).isOk()) {
-            ALOGE("failed transaction: allocate");
-            return C2_CORRUPTED;
-        }
-        if (err != C2_OK) {
-            return err;
-        }
-        allocation->reset(new C2AllocationGralloc(
-                info, mMapper2, buffer,
-                C2HandleGralloc::WrapAndMoveNativeHandle(
-                        buffer.getNativeHandle(),
-                        width, height,
-                        format, grallocUsage, info.stride,
-                        0, 0, mBufferQueue ? ~0 : 0),
-                mTraits->id));
-        return C2_OK;
-    } else if (mMapper3) {
-        BufferDescriptorInfo3 info = {
-            {
-                width,
-                height,
-                1u,  // layerCount
-                PixelFormat4(format),
-                grallocUsage,
-            },
-            0u,  // stride placeholder
-        };
-        BufferDescriptor3 desc;
-        if (!mMapper3->createDescriptor(
-                info.mapperInfo, [&err, &desc](const auto &maperr, const auto &descriptor) {
-                    err = maperr2error(maperr);
-                    if (err == C2_OK) {
-                        desc = descriptor;
-                    }
-                }).isOk()) {
-            ALOGE("failed transaction: createDescriptor");
-            return C2_CORRUPTED;
-        }
-        if (err != C2_OK) {
-            return err;
-        }
-
-        // IAllocator shares IMapper error codes.
-        if (!mAllocator3->allocate(
-                desc,
-                1u,
-                [&err, &buffer, &info](const auto &maperr, const auto &stride, auto &buffers) {
-                    err = maperr2error(maperr);
-                    if (err != C2_OK) {
-                        return;
-                    }
-                    if (buffers.size() != 1u) {
-                        err = C2_CORRUPTED;
-                        return;
-                    }
-                    info.stride = stride;
-                    buffer = buffers[0];
-                }).isOk()) {
-            ALOGE("failed transaction: allocate");
-            return C2_CORRUPTED;
-        }
-        if (err != C2_OK) {
-            return err;
-        }
-        allocation->reset(new C2AllocationGralloc(
-                info, mMapper3, buffer,
-                C2HandleGralloc::WrapAndMoveNativeHandle(
-                        buffer.getNativeHandle(),
-                        width, height,
-                        format, grallocUsage, info.stride,
-                        0, 0, mBufferQueue ? ~0 : 0),
-                mTraits->id));
-        return C2_OK;
-    } else {
-        BufferDescriptorInfo4 info = {
-            {
-                "C2GrallocAllocation",
-                width,
-                height,
-                1u,  // layerCount
-                PixelFormat4(format),
-                grallocUsage,
-            },
-            0u,  // stride placeholder
-        };
-        BufferDescriptor4 desc;
-        if (!mMapper4->createDescriptor(
-                info.mapperInfo, [&err, &desc](const auto &maperr, const auto &descriptor) {
-                    err = maperr2error(maperr);
-                    if (err == C2_OK) {
-                        desc = descriptor;
-                    }
-                }).isOk()) {
-            ALOGE("failed transaction: createDescriptor");
-            return C2_CORRUPTED;
-        }
-        if (err != C2_OK) {
-            return err;
-        }
-
-        // IAllocator shares IMapper error codes.
-        if (!mAllocator4->allocate(
-                desc,
-                1u,
-                [&err, &buffer, &info](const auto &maperr, const auto &stride, auto &buffers) {
-                    err = maperr2error(maperr);
-                    if (err != C2_OK) {
-                        return;
-                    }
-                    if (buffers.size() != 1u) {
-                        err = C2_CORRUPTED;
-                        return;
-                    }
-                    info.stride = stride;
-                    buffer = buffers[0];
-                }).isOk()) {
-            ALOGE("failed transaction: allocate");
-            return C2_CORRUPTED;
-        }
-        if (err != C2_OK) {
-            return err;
-        }
-        allocation->reset(new C2AllocationGralloc(
-                info, mMapper4, buffer,
-                C2HandleGralloc::WrapAndMoveNativeHandle(
-                        buffer.getNativeHandle(),
-                        width, height,
-                        format, grallocUsage, info.stride,
-                        0, 0, mBufferQueue ? ~0 : 0),
-                mTraits->id));
-        return C2_OK;
+    status_t err = GraphicBufferAllocator::get().allocateRawHandle(width, height, format,
+            1u /* layer count */, grallocUsage, &buffer, &stride, "C2GrallocAllocation");
+    if (err) {
+        ALOGE("failed transaction: allocate");
+        return C2_CORRUPTED;
     }
+
+    hidl_handle hidlHandle;
+    hidlHandle.setTo(const_cast<native_handle_t*>(buffer), true);
+
+    allocation->reset(new C2AllocationGralloc(
+            width, height, format, 1u /* layer count */, grallocUsage, stride, hidlHandle,
+            C2HandleGralloc::WrapAndMoveNativeHandle(
+                    hidlHandle, width, height,
+                    format, grallocUsage, stride,
+                    0, 0, mBufferQueue ? ~0 : 0),
+            mTraits->id));
+    return C2_OK;
 }
 
 c2_status_t C2AllocatorGralloc::Impl::priorGraphicAllocation(
         const C2Handle *handle,
         std::shared_ptr<C2GraphicAllocation> *allocation) {
-    if (mMapper2) {
-        BufferDescriptorInfo2 info;
-        info.mapperInfo.layerCount = 1u;
-        uint32_t generation;
-        uint64_t igbp_id;
-        uint32_t igbp_slot;
-        const C2HandleGralloc *grallocHandle = C2HandleGralloc::Import(
-                handle,
-                &info.mapperInfo.width, &info.mapperInfo.height,
-                (uint32_t *)&info.mapperInfo.format,
-                (uint64_t *)&info.mapperInfo.usage,
-                &info.stride,
-                &generation, &igbp_id, &igbp_slot);
-        if (grallocHandle == nullptr) {
-            return C2_BAD_VALUE;
-        }
 
-        hidl_handle hidlHandle;
-        hidlHandle.setTo(C2HandleGralloc::UnwrapNativeHandle(grallocHandle), true);
+    uint32_t generation;
+    uint64_t igbp_id;
+    uint32_t igbp_slot;
 
-        allocation->reset(new C2AllocationGralloc(
-                info, mMapper2, hidlHandle, grallocHandle, mTraits->id));
-        return C2_OK;
-    } else if (mMapper3) {
-        BufferDescriptorInfo3 info;
-        info.mapperInfo.layerCount = 1u;
-        uint32_t generation;
-        uint64_t igbp_id;
-        uint32_t igbp_slot;
-        const C2HandleGralloc *grallocHandle = C2HandleGralloc::Import(
-                handle,
-                &info.mapperInfo.width, &info.mapperInfo.height,
-                (uint32_t *)&info.mapperInfo.format,
-                (uint64_t *)&info.mapperInfo.usage,
-                &info.stride,
-                &generation, &igbp_id, &igbp_slot);
-        if (grallocHandle == nullptr) {
-            return C2_BAD_VALUE;
-        }
+    uint32_t width;
+    uint32_t height;
+    uint32_t format;
+    uint32_t layerCount = 1;
+    uint64_t grallocUsage;
+    uint32_t stride;
 
-        hidl_handle hidlHandle;
-        hidlHandle.setTo(C2HandleGralloc::UnwrapNativeHandle(grallocHandle), true);
-
-        allocation->reset(new C2AllocationGralloc(
-                info, mMapper3, hidlHandle, grallocHandle, mTraits->id));
-        return C2_OK;
-    } else {
-        BufferDescriptorInfo4 info;
-        info.mapperInfo.layerCount = 1u;
-        uint32_t generation;
-        uint64_t igbp_id;
-        uint32_t igbp_slot;
-        const C2HandleGralloc *grallocHandle = C2HandleGralloc::Import(
-                handle,
-                &info.mapperInfo.width, &info.mapperInfo.height,
-                (uint32_t *)&info.mapperInfo.format,
-                (uint64_t *)&info.mapperInfo.usage,
-                &info.stride,
-                &generation, &igbp_id, &igbp_slot);
-        if (grallocHandle == nullptr) {
-            return C2_BAD_VALUE;
-        }
-
-        hidl_handle hidlHandle;
-        hidlHandle.setTo(C2HandleGralloc::UnwrapNativeHandle(grallocHandle), true);
-
-        allocation->reset(new C2AllocationGralloc(
-                info, mMapper4, hidlHandle, grallocHandle, mTraits->id));
-        return C2_OK;
+    const C2HandleGralloc *grallocHandle = C2HandleGralloc::Import(
+            handle, &width, &height, &format, &grallocUsage, &stride,
+            &generation, &igbp_id, &igbp_slot);
+    if (grallocHandle == nullptr) {
+        return C2_BAD_VALUE;
     }
+
+    hidl_handle hidlHandle;
+    hidlHandle.setTo(C2HandleGralloc::UnwrapNativeHandle(grallocHandle), true);
+
+    allocation->reset(new C2AllocationGralloc(
+            width, height, format, layerCount,
+            grallocUsage, stride, hidlHandle, grallocHandle, mTraits->id));
+    return C2_OK;
 }
 
 C2AllocatorGralloc::C2AllocatorGralloc(id_t id, bool bufferQueue)
diff --git a/media/codec2/vndk/C2Buffer.cpp b/media/codec2/vndk/C2Buffer.cpp
index 2d99b53..0b08f31 100644
--- a/media/codec2/vndk/C2Buffer.cpp
+++ b/media/codec2/vndk/C2Buffer.cpp
@@ -22,14 +22,17 @@
 #include <map>
 #include <mutex>
 
-#include <C2AllocatorIon.h>
+#include <C2AllocatorBlob.h>
 #include <C2AllocatorGralloc.h>
+#include <C2AllocatorIon.h>
 #include <C2BufferPriv.h>
 #include <C2BlockInternal.h>
+#include <C2PlatformSupport.h>
 #include <bufferpool/ClientManager.h>
 
 namespace {
 
+using android::C2AllocatorBlob;
 using android::C2AllocatorGralloc;
 using android::C2AllocatorIon;
 using android::hardware::media::bufferpool::BufferPoolData;
@@ -393,10 +396,29 @@
 std::shared_ptr<C2LinearBlock> _C2BlockFactory::CreateLinearBlock(
         const C2Handle *handle) {
     // TODO: get proper allocator? and mutex?
-    static std::unique_ptr<C2AllocatorIon> sAllocator = std::make_unique<C2AllocatorIon>(0);
+    static std::unique_ptr<C2Allocator> sAllocator = []{
+        std::unique_ptr<C2Allocator> allocator;
+        if (android::GetPreferredLinearAllocatorId(android::GetCodec2PoolMask()) ==
+                android::C2PlatformAllocatorStore::BLOB) {
+            allocator = std::make_unique<C2AllocatorBlob>(android::C2PlatformAllocatorStore::BLOB);
+        } else {
+            allocator = std::make_unique<C2AllocatorIon>(android::C2PlatformAllocatorStore::ION);
+        }
+        return allocator;
+    }();
+
+    if (sAllocator == nullptr)
+        return nullptr;
+
+    bool isValidHandle = false;
+    if (sAllocator->getId() == android::C2PlatformAllocatorStore::BLOB) {
+        isValidHandle = C2AllocatorBlob::isValid(handle);
+    } else {
+        isValidHandle = C2AllocatorIon::isValid(handle);
+    }
 
     std::shared_ptr<C2LinearAllocation> alloc;
-    if (C2AllocatorIon::isValid(handle)) {
+    if (isValidHandle) {
         c2_status_t err = sAllocator->priorLinearAllocation(handle, &alloc);
         if (err == C2_OK) {
             std::shared_ptr<C2LinearBlock> block = _C2BlockFactory::CreateLinearBlock(alloc);
@@ -409,10 +431,29 @@
 std::shared_ptr<C2LinearBlock> _C2BlockFactory::CreateLinearBlock(
         const C2Handle *cHandle, const std::shared_ptr<BufferPoolData> &data) {
     // TODO: get proper allocator? and mutex?
-    static std::unique_ptr<C2AllocatorIon> sAllocator = std::make_unique<C2AllocatorIon>(0);
+    static std::unique_ptr<C2Allocator> sAllocator = []{
+        std::unique_ptr<C2Allocator> allocator;
+        if (android::GetPreferredLinearAllocatorId(android::GetCodec2PoolMask()) ==
+                android::C2PlatformAllocatorStore::BLOB) {
+            allocator = std::make_unique<C2AllocatorBlob>(android::C2PlatformAllocatorStore::BLOB);
+        } else {
+            allocator = std::make_unique<C2AllocatorIon>(android::C2PlatformAllocatorStore::ION);
+        }
+        return allocator;
+    }();
+
+    if (sAllocator == nullptr)
+        return nullptr;
+
+    bool isValidHandle = false;
+    if (sAllocator->getId() == android::C2PlatformAllocatorStore::BLOB) {
+        isValidHandle = C2AllocatorBlob::isValid(cHandle);
+    } else {
+        isValidHandle = C2AllocatorIon::isValid(cHandle);
+    }
 
     std::shared_ptr<C2LinearAllocation> alloc;
-    if (C2AllocatorIon::isValid(cHandle)) {
+    if (isValidHandle) {
         c2_status_t err = sAllocator->priorLinearAllocation(cHandle, &alloc);
         const std::shared_ptr<C2PooledBlockPoolData> poolData =
                 std::make_shared<C2PooledBlockPoolData>(data);
diff --git a/media/codec2/vndk/C2Store.cpp b/media/codec2/vndk/C2Store.cpp
index e0408b7..d16527e 100644
--- a/media/codec2/vndk/C2Store.cpp
+++ b/media/codec2/vndk/C2Store.cpp
@@ -18,6 +18,7 @@
 #define LOG_NDEBUG 0
 #include <utils/Log.h>
 
+#include <C2AllocatorBlob.h>
 #include <C2AllocatorGralloc.h>
 #include <C2AllocatorIon.h>
 #include <C2BufferPriv.h>
@@ -26,6 +27,7 @@
 #include <C2Config.h>
 #include <C2PlatformStorePluginLoader.h>
 #include <C2PlatformSupport.h>
+#include <cutils/properties.h>
 #include <util/C2InterfaceHelper.h>
 
 #include <dlfcn.h>
@@ -75,6 +77,9 @@
     ~C2PlatformAllocatorStoreImpl() override = default;
 
 private:
+    /// returns a shared-singleton blob allocator (gralloc-backed)
+    std::shared_ptr<C2Allocator> fetchBlobAllocator();
+
     /// returns a shared-singleton ion allocator
     std::shared_ptr<C2Allocator> fetchIonAllocator();
 
@@ -97,10 +102,12 @@
 c2_status_t C2PlatformAllocatorStoreImpl::fetchAllocator(
         id_t id, std::shared_ptr<C2Allocator> *const allocator) {
     allocator->reset();
+    if (id == C2AllocatorStore::DEFAULT_LINEAR) {
+        id = GetPreferredLinearAllocatorId(GetCodec2PoolMask());
+    }
     switch (id) {
     // TODO: should we implement a generic registry for all, and use that?
     case C2PlatformAllocatorStore::ION:
-    case C2AllocatorStore::DEFAULT_LINEAR:
         *allocator = fetchIonAllocator();
         break;
 
@@ -113,6 +120,10 @@
         *allocator = fetchBufferQueueAllocator();
         break;
 
+    case C2PlatformAllocatorStore::BLOB:
+        *allocator = fetchBlobAllocator();
+        break;
+
     default:
         // Try to create allocator from platform store plugins.
         c2_status_t res =
@@ -222,6 +233,18 @@
     return allocator;
 }
 
+std::shared_ptr<C2Allocator> C2PlatformAllocatorStoreImpl::fetchBlobAllocator() {
+    static std::mutex mutex;
+    static std::weak_ptr<C2Allocator> blobAllocator;
+    std::lock_guard<std::mutex> lock(mutex);
+    std::shared_ptr<C2Allocator> allocator = blobAllocator.lock();
+    if (allocator == nullptr) {
+        allocator = std::make_shared<C2AllocatorBlob>(C2PlatformAllocatorStore::BLOB);
+        blobAllocator = allocator;
+    }
+    return allocator;
+}
+
 std::shared_ptr<C2Allocator> C2PlatformAllocatorStoreImpl::fetchGrallocAllocator() {
     static std::mutex mutex;
     static std::weak_ptr<C2Allocator> grallocAllocator;
@@ -292,6 +315,18 @@
     return gPreferredComponentStore ? gPreferredComponentStore : GetCodec2PlatformComponentStore();
 }
 
+int GetCodec2PoolMask() {
+    return property_get_int32(
+            "debug.stagefright.c2-poolmask",
+            1 << C2PlatformAllocatorStore::ION |
+            1 << C2PlatformAllocatorStore::BUFFERQUEUE);
+}
+
+C2PlatformAllocatorStore::id_t GetPreferredLinearAllocatorId(int poolMask) {
+    return ((poolMask >> C2PlatformAllocatorStore::BLOB) & 1) ? C2PlatformAllocatorStore::BLOB
+                                                              : C2PlatformAllocatorStore::ION;
+}
+
 namespace {
 
 class _C2BlockPoolCache {
@@ -308,11 +343,25 @@
         std::shared_ptr<C2Allocator> allocator;
         c2_status_t res = C2_NOT_FOUND;
 
+        if (allocatorId == C2AllocatorStore::DEFAULT_LINEAR) {
+            allocatorId = GetPreferredLinearAllocatorId(GetCodec2PoolMask());
+        }
         switch(allocatorId) {
             case C2PlatformAllocatorStore::ION:
-            case C2AllocatorStore::DEFAULT_LINEAR:
                 res = allocatorStore->fetchAllocator(
-                        C2AllocatorStore::DEFAULT_LINEAR, &allocator);
+                        C2PlatformAllocatorStore::ION, &allocator);
+                if (res == C2_OK) {
+                    std::shared_ptr<C2BlockPool> ptr =
+                            std::make_shared<C2PooledBlockPool>(
+                                    allocator, poolId);
+                    *pool = ptr;
+                    mBlockPools[poolId] = ptr;
+                    mComponents[poolId] = component;
+                }
+                break;
+            case C2PlatformAllocatorStore::BLOB:
+                res = allocatorStore->fetchAllocator(
+                        C2PlatformAllocatorStore::BLOB, &allocator);
                 if (res == C2_OK) {
                     std::shared_ptr<C2BlockPool> ptr =
                             std::make_shared<C2PooledBlockPool>(
diff --git a/media/codec2/vndk/include/C2PlatformSupport.h b/media/codec2/vndk/include/C2PlatformSupport.h
index f31282c..a14e0d3 100644
--- a/media/codec2/vndk/include/C2PlatformSupport.h
+++ b/media/codec2/vndk/include/C2PlatformSupport.h
@@ -66,6 +66,15 @@
         BUFFERQUEUE,
 
         /**
+         * ID of the gralloc backed platform allocator for linear blob buffer.
+         *
+         * C2Handle layout is not public. Use C2AllocatorGralloc::UnwrapNativeCodec2GrallocHandle
+         * to get the underlying gralloc handle from a C2Handle, and WrapNativeCodec2GrallocHandle
+         * to create a C2Handle from a gralloc handle - for C2Allocator::priorAllocation.
+         */
+        BLOB,
+
+        /**
          * ID of indicating the end of platform allocator definition.
          *
          * \note always put this macro in the last place.
@@ -131,6 +140,20 @@
  */
 void SetPreferredCodec2ComponentStore(std::shared_ptr<C2ComponentStore> store);
 
+/**
+ * Returns the pool mask.
+ * \retval the default pool mask should be adopted if it could not be obtained from property
+ *         "debug.stagefright.c2-poolmask"
+ */
+int GetCodec2PoolMask();
+
+/**
+ * Returns the preferred linear buffer allocator id from param poolMask.
+ * C2PlatformAllocatorStore::ION should be chosen as fallback allocator if BLOB is not enabled from
+ * param poolMask.
+ */
+C2PlatformAllocatorStore::id_t GetPreferredLinearAllocatorId(int poolMask);
+
 } // namespace android
 
 #endif // STAGEFRIGHT_CODEC2_PLATFORM_SUPPORT_H_
diff --git a/media/codec2/vndk/platform/C2BqBuffer.cpp b/media/codec2/vndk/platform/C2BqBuffer.cpp
index 8304f74..62936f6 100644
--- a/media/codec2/vndk/platform/C2BqBuffer.cpp
+++ b/media/codec2/vndk/platform/C2BqBuffer.cpp
@@ -576,10 +576,11 @@
             }
         }
         int migrated = 0;
+        // poolDatas dtor should not be called during lock is held.
+        std::shared_ptr<C2BufferQueueBlockPoolData>
+                poolDatas[NUM_BUFFER_SLOTS];
         {
             sp<GraphicBuffer> buffers[NUM_BUFFER_SLOTS];
-            std::weak_ptr<C2BufferQueueBlockPoolData>
-                    poolDatas[NUM_BUFFER_SLOTS];
             std::scoped_lock<std::mutex> lock(mMutex);
             bool noInit = false;
             for (int i = 0; i < NUM_BUFFER_SLOTS; ++i) {
diff --git a/media/extractors/mkv/MatroskaExtractor.cpp b/media/extractors/mkv/MatroskaExtractor.cpp
index 23022e4..044c4d0 100644
--- a/media/extractors/mkv/MatroskaExtractor.cpp
+++ b/media/extractors/mkv/MatroskaExtractor.cpp
@@ -22,7 +22,7 @@
 #include "MatroskaExtractor.h"
 #include "common/webmids.h"
 
-#include <media/DataSourceBase.h>
+#include <media/stagefright/DataSourceBase.h>
 #include <media/ExtractorUtils.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/AUtils.h>
diff --git a/media/extractors/mp4/ItemTable.cpp b/media/extractors/mp4/ItemTable.cpp
index 8c8e6d1..0773387 100644
--- a/media/extractors/mp4/ItemTable.cpp
+++ b/media/extractors/mp4/ItemTable.cpp
@@ -700,8 +700,8 @@
     }
 
 private:
-    uint32_t mWidth;
-    uint32_t mHeight;
+    int32_t mWidth;
+    int32_t mHeight;
 };
 
 status_t IspeBox::parse(off64_t offset, size_t size) {
@@ -715,12 +715,19 @@
     if (size < 8) {
         return ERROR_MALFORMED;
     }
-    if (!source()->getUInt32(offset, &mWidth)
-            || !source()->getUInt32(offset + 4, &mHeight)) {
+    if (!source()->getUInt32(offset, (uint32_t *)&mWidth)
+            || !source()->getUInt32(offset + 4, (uint32_t *)&mHeight)) {
         return ERROR_IO;
     }
-    ALOGV("property ispe: %dx%d", mWidth, mHeight);
 
+    // Validate that the dimension doesn't cause overflow on calculated max input size.
+    // Max input size is width*height*1.5, restrict width*height to 1<<29 so that
+    // we don't need to cast to int64_t when doing mults.
+    if (mWidth <= 0 || mHeight <= 0 || mWidth > (1 << 29) / mHeight) {
+        return ERROR_MALFORMED;
+    }
+
+    ALOGV("property ispe: %dx%d", mWidth, mHeight);
     return OK;
 }
 
@@ -1524,8 +1531,9 @@
             default: break; // don't set if invalid
         }
     }
+    // we validated no overflow in IspeBox::parse()
     AMediaFormat_setInt32(meta,
-            AMEDIAFORMAT_KEY_MAX_INPUT_SIZE, image->width * image->height * 1.5);
+            AMEDIAFORMAT_KEY_MAX_INPUT_SIZE, image->width * image->height * 3 / 2);
 
     if (!image->thumbnails.empty()) {
         ssize_t thumbItemIndex = mItemIdToItemMap.indexOfKey(image->thumbnails[0]);
@@ -1561,8 +1569,9 @@
                 AMEDIAFORMAT_KEY_TILE_WIDTH, image->width);
         AMediaFormat_setInt32(meta,
                 AMEDIAFORMAT_KEY_TILE_HEIGHT, image->height);
+        // we validated no overflow in IspeBox::parse()
         AMediaFormat_setInt32(meta,
-                AMEDIAFORMAT_KEY_MAX_INPUT_SIZE, image->width * image->height * 1.5);
+                AMEDIAFORMAT_KEY_MAX_INPUT_SIZE, image->width * image->height * 3 / 2);
     }
 
     if (image->hvcc == NULL) {
diff --git a/media/extractors/mp4/MPEG4Extractor.cpp b/media/extractors/mp4/MPEG4Extractor.cpp
index 6f85960..9e0bc96 100755
--- a/media/extractors/mp4/MPEG4Extractor.cpp
+++ b/media/extractors/mp4/MPEG4Extractor.cpp
@@ -33,7 +33,7 @@
 #include "ItemTable.h"
 #include "include/ESDS.h"
 
-#include <media/DataSourceBase.h>
+#include <media/stagefright/DataSourceBase.h>
 #include <media/ExtractorUtils.h>
 #include <media/stagefright/foundation/ABitReader.h>
 #include <media/stagefright/foundation/ABuffer.h>
@@ -83,7 +83,8 @@
                 const Trex *trex,
                 off64_t firstMoofOffset,
                 const sp<ItemTable> &itemTable,
-                uint64_t elstShiftStartTicks);
+                uint64_t elstShiftStartTicks,
+                uint64_t elstInitialEmptyEditTicks);
     virtual status_t init();
 
     virtual media_status_t start();
@@ -151,6 +152,7 @@
     // Start offset from composition time to presentation time.
     // Support shift only for video tracks through mElstShiftStartTicks for now.
     uint64_t mElstShiftStartTicks;
+    uint64_t mElstInitialEmptyEditTicks;
 
     size_t parseNALSize(const uint8_t *data) const;
     status_t parseChunk(off64_t *offset);
@@ -484,12 +486,11 @@
         int64_t duration;
         int32_t samplerate;
         // Only for audio track.
-        if (track->has_elst && mHeaderTimescale != 0 &&
-                AMediaFormat_getInt64(track->meta, AMEDIAFORMAT_KEY_DURATION, &duration) &&
-                AMediaFormat_getInt32(track->meta, AMEDIAFORMAT_KEY_SAMPLE_RATE, &samplerate)) {
-
+        if (track->elst_needs_processing && mHeaderTimescale != 0 &&
+            AMediaFormat_getInt64(track->meta, AMEDIAFORMAT_KEY_DURATION, &duration) &&
+            AMediaFormat_getInt32(track->meta, AMEDIAFORMAT_KEY_SAMPLE_RATE, &samplerate)) {
             // Elst has to be processed only the first time this function is called.
-            track->has_elst = false;
+            track->elst_needs_processing = false;
 
             if (track->elst_segment_duration > INT64_MAX) {
                 return;
@@ -1098,10 +1099,11 @@
                             track_b->sampleTable = mLastTrack->sampleTable;
                             track_b->includes_expensive_metadata = mLastTrack->includes_expensive_metadata;
                             track_b->skipTrack = mLastTrack->skipTrack;
-                            track_b->has_elst = mLastTrack->has_elst;
+                            track_b->elst_needs_processing = mLastTrack->elst_needs_processing;
                             track_b->elst_media_time = mLastTrack->elst_media_time;
                             track_b->elst_segment_duration = mLastTrack->elst_segment_duration;
-                            track_b->elstShiftStartTicks = mLastTrack->elstShiftStartTicks;
+                            track_b->elst_shift_start_ticks = mLastTrack->elst_shift_start_ticks;
+                            track_b->elst_initial_empty_edit_ticks = mLastTrack->elst_initial_empty_edit_ticks;
                             track_b->subsample_encryption = mLastTrack->subsample_encryption;
 
                             track_b->mTx3gBuffer = mLastTrack->mTx3gBuffer;
@@ -1204,39 +1206,86 @@
                 return ERROR_IO;
             }
 
-            if (entry_count != 1) {
-                // we only support a single entry at the moment, for gapless playback
-                // or start offset
+            if (entry_count > 2) {
+                /* We support a single entry for gapless playback or negating offset for
+                 * reordering B frames, two entries (empty edit) for start offset at the moment.
+                 */
                 ALOGW("ignoring edit list with %d entries", entry_count);
             } else {
                 off64_t entriesoffset = data_offset + 8;
                 uint64_t segment_duration;
                 int64_t media_time;
-
-                if (version == 1) {
-                    if (!mDataSource->getUInt64(entriesoffset, &segment_duration) ||
-                            !mDataSource->getUInt64(entriesoffset + 8, (uint64_t*)&media_time)) {
-                        return ERROR_IO;
-                    }
-                } else if (version == 0) {
-                    uint32_t sd;
-                    int32_t mt;
-                    if (!mDataSource->getUInt32(entriesoffset, &sd) ||
+                uint64_t empty_edit_ticks = 0;
+                bool empty_edit_present = false;
+                for (int i = 0; i < entry_count; ++i) {
+                    switch (version) {
+                    case 0: {
+                        uint32_t sd;
+                        int32_t mt;
+                        if (!mDataSource->getUInt32(entriesoffset, &sd) ||
                             !mDataSource->getUInt32(entriesoffset + 4, (uint32_t*)&mt)) {
-                        return ERROR_IO;
+                            return ERROR_IO;
+                        }
+                        segment_duration = sd;
+                        media_time = mt;
+                        // 4(segment duration) + 4(media time) + 4(media rate)
+                        entriesoffset += 12;
+                        break;
                     }
-                    segment_duration = sd;
-                    media_time = mt;
-                } else {
-                    return ERROR_IO;
+                    case 1: {
+                        if (!mDataSource->getUInt64(entriesoffset, &segment_duration) ||
+                            !mDataSource->getUInt64(entriesoffset + 8, (uint64_t*)&media_time)) {
+                            return ERROR_IO;
+                        }
+                        // 8(segment duration) + 8(media time) + 4(media rate)
+                        entriesoffset += 20;
+                        break;
+                    }
+                    default:
+                        return ERROR_IO;
+                        break;
+                    }
+                    // Empty edit entry would have to be first entry.
+                    if (media_time == -1 && i == 0) {
+                        int64_t durationUs;
+                        if (AMediaFormat_getInt64(mFileMetaData, AMEDIAFORMAT_KEY_DURATION,
+                                                  &durationUs)) {
+                            empty_edit_ticks = segment_duration;
+                            ALOGV("initial empty edit ticks: %" PRIu64, empty_edit_ticks);
+                            empty_edit_present = true;
+                        }
+                    }
+                    // Process second entry only when the first entry was an empty edit entry.
+                    if (empty_edit_present && i == 1) {
+                        int64_t durationUs;
+                        if (AMediaFormat_getInt64(mLastTrack->meta, AMEDIAFORMAT_KEY_DURATION,
+                                                  &durationUs) &&
+                            mHeaderTimescale != 0) {
+                            // Support only segment_duration<=track_duration and media_time==0 case.
+                            uint64_t segmentDurationUs =
+                                    segment_duration * 1000000 / mHeaderTimescale;
+                            if (segmentDurationUs == 0 || segmentDurationUs > durationUs ||
+                                media_time != 0) {
+                                ALOGW("for now, unsupported second entry in empty edit list");
+                            }
+                        }
+                    }
                 }
-
                 // save these for later, because the elst atom might precede
                 // the atoms that actually gives us the duration and sample rate
                 // needed to calculate the padding and delay values
-                mLastTrack->has_elst = true;
-                mLastTrack->elst_media_time = media_time;
-                mLastTrack->elst_segment_duration = segment_duration;
+                mLastTrack->elst_needs_processing = true;
+                if (empty_edit_present) {
+                    /* In movie header timescale, and needs to be converted to media timescale once
+                     * we get that from a track's 'mdhd' atom, which at times come after 'elst'.
+                     */
+                    mLastTrack->elst_initial_empty_edit_ticks = empty_edit_ticks;
+                } else {
+                    mLastTrack->elst_media_time = media_time;
+                    mLastTrack->elst_segment_duration = segment_duration;
+                    ALOGV("segment_duration: %" PRIu64 " media_time: %" PRId64, segment_duration,
+                          media_time);
+                }
             }
             break;
         }
@@ -1631,8 +1680,12 @@
         {
             *offset += chunk_size;
 
-            if (mLastTrack == NULL)
+            // the absolute minimum size of a compliant mett box is 11 bytes:
+            // 6 byte reserved, 2 byte index, null byte, one char mime_format, null byte
+            // The resulting mime_format would be invalid at that size though.
+            if (mLastTrack == NULL || chunk_data_size < 11) {
                 return ERROR_MALFORMED;
+            }
 
             auto buffer = heapbuffer<uint8_t>(chunk_data_size);
             if (buffer.get() == NULL) {
@@ -1644,10 +1697,24 @@
                 return ERROR_IO;
             }
 
+            // ISO-14496-12:
+            // int8 reserved[6];               // should be all zeroes
+            // int16_t data_reference_index;
+            // char content_encoding[];        // null terminated, optional (= just the null byte)
+            // char mime_format[];             // null terminated, mandatory
+            // optional other boxes
+            //
+            // API < 29:
+            // char mime_format[];             // null terminated
+            //
+            // API >= 29
+            // char mime_format[];             // null terminated
+            // char mime_format[];             // null terminated
+
             // Prior to API 29, the metadata track was not compliant with ISO/IEC
             // 14496-12-2015. This led to some ISO-compliant parsers failing to read the
             // metatrack. As of API 29 and onwards, a change was made to metadata track to
-            // make it compliant with the standard. The workaround is to write the
+            // make it somewhat compatible with the standard. The workaround is to write the
             // null-terminated mime_format string twice. This allows compliant parsers to
             // read the missing reserved, data_reference_index, and content_encoding fields
             // from the first mime_type string. The actual mime_format field would then be
@@ -1656,27 +1723,27 @@
             // as it would only read the first null-terminated mime_format string. To enable
             // reading metadata tracks generated from both the non-compliant and compliant
             // formats, a check needs to be done to see which format is used.
-            int null_pos = 0;
-            const unsigned char *str = buffer.get();
-            while (null_pos < chunk_data_size) {
-              if (*(str + null_pos) == '\0') {
-                break;
-              }
-              ++null_pos;
-            }
+            const char *str = (const char*) buffer.get();
+            size_t string_length = strnlen(str, chunk_data_size);
 
-            if (null_pos == chunk_data_size - 1) {
-              // This is not a standard ompliant metadata track.
-              String8 mimeFormat((const char *)(buffer.get()), chunk_data_size);
-              AMediaFormat_setString(mLastTrack->meta,
-                  AMEDIAFORMAT_KEY_MIME, mimeFormat.string());
+            if (string_length == chunk_data_size - 1) {
+                // This is likely a pre API 29 file, since it's a single null terminated
+                // string filling the entire box.
+                AMediaFormat_setString(mLastTrack->meta, AMEDIAFORMAT_KEY_MIME, str);
             } else {
-              // This is a standard compliant metadata track.
-              String8 contentEncoding((const char *)(buffer.get() + 8));
-              String8 mimeFormat((const char *)(buffer.get() + 8 + contentEncoding.size() + 1),
-                  chunk_data_size - 8 - contentEncoding.size() - 1);
-              AMediaFormat_setString(mLastTrack->meta,
-                  AMEDIAFORMAT_KEY_MIME, mimeFormat.string());
+                // This might be a fully compliant metadata track, a "double mime" compatibility
+                // track, or anything else, including a single non-terminated string, so we need
+                // to determine the length of each string we want to parse out of the box.
+                size_t encoding_length = strnlen(str + 8, chunk_data_size - 8);
+                if (encoding_length + 8 >= chunk_data_size - 2) {
+                    // the encoding extends to the end of the box, so there's no mime_format
+                    return ERROR_MALFORMED;
+                }
+                String8 contentEncoding(str + 8, encoding_length);
+                String8 mimeFormat(str + 8 + encoding_length + 1,
+                        chunk_data_size - 8 - encoding_length - 1);
+                AMediaFormat_setString(mLastTrack->meta,
+                        AMEDIAFORMAT_KEY_MIME, mimeFormat.string());
             }
             break;
         }
@@ -4257,15 +4324,28 @@
         }
     }
 
-    if (track->has_elst and !strncasecmp("video/", mime, 6) and track->elst_media_time > 0) {
-        track->elstShiftStartTicks = track->elst_media_time;
-        ALOGV("video track->elstShiftStartTicks :%" PRIu64, track->elstShiftStartTicks);
+    // media_time is in media timescale as are STTS/CTTS entries.
+    track->elst_shift_start_ticks = track->elst_media_time;
+    ALOGV("track->elst_shift_start_ticks :%" PRIu64, track->elst_shift_start_ticks);
+    if (mHeaderTimescale != 0) {
+        // Convert empty_edit_ticks from movie timescale to media timescale.
+        uint64_t elst_initial_empty_edit_ticks_mul = 0, elst_initial_empty_edit_ticks_add = 0;
+        if (__builtin_mul_overflow(track->elst_initial_empty_edit_ticks, track->timescale,
+                                   &elst_initial_empty_edit_ticks_mul) ||
+            __builtin_add_overflow(elst_initial_empty_edit_ticks_mul, (mHeaderTimescale / 2),
+                                   &elst_initial_empty_edit_ticks_add)) {
+            ALOGE("track->elst_initial_empty_edit_ticks overflow");
+            return nullptr;
+        }
+        track->elst_initial_empty_edit_ticks = elst_initial_empty_edit_ticks_add / mHeaderTimescale;
+        ALOGV("track->elst_initial_empty_edit_ticks :%" PRIu64,
+              track->elst_initial_empty_edit_ticks);
     }
 
-    MPEG4Source *source =  new MPEG4Source(
-            track->meta, mDataSource, track->timescale, track->sampleTable,
-            mSidxEntries, trex, mMoofOffset, itemTable,
-            track->elstShiftStartTicks);
+    MPEG4Source* source =
+            new MPEG4Source(track->meta, mDataSource, track->timescale, track->sampleTable,
+                            mSidxEntries, trex, mMoofOffset, itemTable,
+                            track->elst_shift_start_ticks, track->elst_initial_empty_edit_ticks);
     if (source->init() != OK) {
         delete source;
         return NULL;
@@ -4758,7 +4838,8 @@
         const Trex *trex,
         off64_t firstMoofOffset,
         const sp<ItemTable> &itemTable,
-        uint64_t elstShiftStartTicks)
+        uint64_t elstShiftStartTicks,
+        uint64_t elstInitialEmptyEditTicks)
     : mFormat(format),
       mDataSource(dataSource),
       mTimescale(timeScale),
@@ -4788,7 +4869,8 @@
       mSrcBuffer(NULL),
       mIsHeif(itemTable != NULL),
       mItemTable(itemTable),
-      mElstShiftStartTicks(elstShiftStartTicks) {
+      mElstShiftStartTicks(elstShiftStartTicks),
+      mElstInitialEmptyEditTicks(elstInitialEmptyEditTicks) {
 
     memset(&mTrackFragmentHeaderInfo, 0, sizeof(mTrackFragmentHeaderInfo));
 
@@ -4907,35 +4989,14 @@
     }
 
     CHECK(AMediaFormat_getInt32(format, AMEDIAFORMAT_KEY_TRACK_ID, &mTrackId));
-
 }
 
 status_t MPEG4Source::init() {
-    status_t err = OK;
-    const char *mime;
-    CHECK(AMediaFormat_getString(mFormat, AMEDIAFORMAT_KEY_MIME, &mime));
     if (mFirstMoofOffset != 0) {
         off64_t offset = mFirstMoofOffset;
-        err = parseChunk(&offset);
-        if(err == OK && !strncasecmp("video/", mime, 6)
-            && !mCurrentSamples.isEmpty()) {
-            // Start offset should be less or equal to composition time of first sample.
-            // ISO : sample_composition_time_offset, version 0 (unsigned) for major brands.
-            mElstShiftStartTicks = std::min(mElstShiftStartTicks,
-                                            (uint64_t)(*mCurrentSamples.begin()).compositionOffset);
-        }
-        return err;
+        return parseChunk(&offset);
     }
-
-    if (!strncasecmp("video/", mime, 6)) {
-        uint64_t firstSampleCTS = 0;
-        err = mSampleTable->getMetaDataForSample(0, NULL, NULL, &firstSampleCTS);
-        // Start offset should be less or equal to composition time of first sample.
-        // Composition time stamp of first sample cannot be negative.
-        mElstShiftStartTicks = std::min(mElstShiftStartTicks, firstSampleCTS);
-    }
-
-    return err;
+    return OK;
 }
 
 MPEG4Source::~MPEG4Source() {
@@ -5783,6 +5844,7 @@
 
     int64_t seekTimeUs;
     ReadOptions::SeekMode mode;
+
     if (options && options->getSeekTo(&seekTimeUs, &mode)) {
 
         if (mIsHeif) {
@@ -5824,6 +5886,8 @@
             }
             if( mode != ReadOptions::SEEK_FRAME_INDEX) {
                 seekTimeUs += ((long double)mElstShiftStartTicks * 1000000) / mTimescale;
+                ALOGV("shifted seekTimeUs :%" PRId64 ", mElstShiftStartTicks:%" PRIu64, seekTimeUs,
+                      mElstShiftStartTicks);
             }
 
             uint32_t sampleIndex;
@@ -5898,7 +5962,8 @@
 
     off64_t offset = 0;
     size_t size = 0;
-    uint64_t cts, stts;
+    int64_t cts;
+    uint64_t stts;
     bool isSyncSample;
     bool newBuffer = false;
     if (mBuffer == NULL) {
@@ -5906,14 +5971,15 @@
 
         status_t err;
         if (!mIsHeif) {
-            err = mSampleTable->getMetaDataForSample(
-                    mCurrentSampleIndex, &offset, &size, &cts, &isSyncSample, &stts);
+            err = mSampleTable->getMetaDataForSample(mCurrentSampleIndex, &offset, &size,
+                                                    (uint64_t*)&cts, &isSyncSample, &stts);
             if(err == OK) {
-                /* Composition Time Stamp cannot be negative. Some files have video Sample
-                * Time(STTS)delta with zero value(b/117402420).  Hence subtract only
-                * min(cts, mElstShiftStartTicks), so that audio tracks can be played.
-                */
-                cts -= std::min(cts, mElstShiftStartTicks);
+                if (mElstInitialEmptyEditTicks > 0) {
+                    cts += mElstInitialEmptyEditTicks;
+                } else {
+                    // cts can be negative. for example, initial audio samples for gapless playback.
+                    cts -= (int64_t)mElstShiftStartTicks;
+                }
             }
 
         } else {
@@ -6254,7 +6320,7 @@
 
     off64_t offset = 0;
     size_t size = 0;
-    uint64_t cts = 0;
+    int64_t cts = 0;
     bool isSyncSample = false;
     bool newBuffer = false;
     if (mBuffer == NULL || mCurrentSampleIndex >= mCurrentSamples.size()) {
@@ -6286,11 +6352,13 @@
         offset = smpl->offset;
         size = smpl->size;
         cts = mCurrentTime + smpl->compositionOffset;
-        /* Composition Time Stamp cannot be negative. Some files have video Sample
-        * Time(STTS)delta with zero value(b/117402420).  Hence subtract only
-        * min(cts, mElstShiftStartTicks), so that audio tracks can be played.
-        */
-        cts -= std::min(cts, mElstShiftStartTicks);
+
+        if (mElstInitialEmptyEditTicks > 0) {
+            cts += mElstInitialEmptyEditTicks;
+        } else {
+            // cts can be negative. for example, initial audio samples for gapless playback.
+            cts -= (int64_t)mElstShiftStartTicks;
+        }
 
         mCurrentTime += smpl->duration;
         isSyncSample = (mCurrentSampleIndex == 0);
diff --git a/media/extractors/mp4/MPEG4Extractor.h b/media/extractors/mp4/MPEG4Extractor.h
index fcddbb8..53ec6bc 100644
--- a/media/extractors/mp4/MPEG4Extractor.h
+++ b/media/extractors/mp4/MPEG4Extractor.h
@@ -82,14 +82,16 @@
         sp<SampleTable> sampleTable;
         bool includes_expensive_metadata;
         bool skipTrack;
-        bool has_elst;
+        bool elst_needs_processing;
         /* signed int, ISO Spec allows media_time = -1 for other use cases.
          * but we don't support empty edits for now.
          */
         int64_t elst_media_time;
         uint64_t elst_segment_duration;
-        // unsigned int, shift start offset only when media_time > 0.
-        uint64_t elstShiftStartTicks;
+        // Shift start offset only when media_time > 0.
+        uint64_t elst_shift_start_ticks;
+        // Initial start offset, empty edit list entry.
+        uint64_t elst_initial_empty_edit_ticks;
         bool subsample_encryption;
 
         uint8_t *mTx3gBuffer;
@@ -102,9 +104,11 @@
             timescale = 0;
             includes_expensive_metadata = false;
             skipTrack = false;
-            has_elst = false;
+            elst_needs_processing = false;
             elst_media_time = 0;
-            elstShiftStartTicks = 0;
+            elst_segment_duration = 0;
+            elst_shift_start_ticks = 0;
+            elst_initial_empty_edit_ticks = 0;
             subsample_encryption = false;
             mTx3gBuffer = NULL;
             mTx3gSize = mTx3gFilled = 0;
diff --git a/media/extractors/mpeg2/MPEG2TSExtractor.cpp b/media/extractors/mpeg2/MPEG2TSExtractor.cpp
index 50ce657..f4643c5 100644
--- a/media/extractors/mpeg2/MPEG2TSExtractor.cpp
+++ b/media/extractors/mpeg2/MPEG2TSExtractor.cpp
@@ -24,13 +24,13 @@
 
 #include "MPEG2TSExtractor.h"
 
-#include <media/DataSourceBase.h>
 #include <media/IStreamSource.h>
 #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/foundation/MediaKeys.h>
+#include <media/stagefright/DataSourceBase.h>
 #include <media/stagefright/MediaDefs.h>
 #include <media/stagefright/MediaErrors.h>
 #include <media/stagefright/MetaData.h>
diff --git a/media/extractors/ogg/OggExtractor.cpp b/media/extractors/ogg/OggExtractor.cpp
index 4012ece..828bcd6 100644
--- a/media/extractors/ogg/OggExtractor.cpp
+++ b/media/extractors/ogg/OggExtractor.cpp
@@ -22,7 +22,7 @@
 
 #include <cutils/properties.h>
 #include <utils/Vector.h>
-#include <media/DataSourceBase.h>
+#include <media/stagefright/DataSourceBase.h>
 #include <media/ExtractorUtils.h>
 #include <media/stagefright/foundation/ABuffer.h>
 #include <media/stagefright/foundation/ADebug.h>
@@ -635,7 +635,8 @@
             currentPageSamples -= mStartGranulePosition;
             AMediaFormat_setInt32(meta, AMEDIAFORMAT_KEY_VALID_SAMPLES, currentPageSamples);
         }
-        mCurGranulePosition = mCurrentPage.mGranulePosition - currentPageSamples;
+        (void) __builtin_sub_overflow(mCurrentPage.mGranulePosition, currentPageSamples,
+                                      &mCurGranulePosition);
     }
 
     int64_t timeUs = getTimeUsOfGranule(mCurGranulePosition);
diff --git a/media/libaaudio/examples/loopback/src/LoopbackAnalyzer.h b/media/libaaudio/examples/loopback/src/LoopbackAnalyzer.h
deleted file mode 100644
index 8eb70b1..0000000
--- a/media/libaaudio/examples/loopback/src/LoopbackAnalyzer.h
+++ /dev/null
@@ -1,1114 +0,0 @@
-/*
- * 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.
- */
-
-/**
- * Tools for measuring latency and for detecting glitches.
- * These classes are pure math and can be used with any audio system.
- */
-
-#ifndef AAUDIO_EXAMPLES_LOOPBACK_ANALYSER_H
-#define AAUDIO_EXAMPLES_LOOPBACK_ANALYSER_H
-
-#include <algorithm>
-#include <assert.h>
-#include <cctype>
-#include <math.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-
-#include <audio_utils/sndfile.h>
-
-// Tag for machine readable results as property = value pairs
-#define LOOPBACK_RESULT_TAG      "RESULT: "
-
-constexpr int32_t kDefaultSampleRate = 48000;
-constexpr int32_t kMillisPerSecond   = 1000;
-constexpr int32_t kMinLatencyMillis  = 4;    // arbitrary and very low
-constexpr int32_t kMaxLatencyMillis  = 400;  // arbitrary and generous
-constexpr double  kMaxEchoGain       = 10.0; // based on experiments, otherwise too noisy
-constexpr double  kMinimumConfidence = 0.5;
-
-static void printAudioScope(float sample) {
-    const int maxStars = 80; // arbitrary, fits on one line
-    char c = '*';
-    if (sample < -1.0) {
-        sample = -1.0;
-        c = '$';
-    } else if (sample > 1.0) {
-        sample = 1.0;
-        c = '$';
-    }
-    int numSpaces = (int) (((sample + 1.0) * 0.5) * maxStars);
-    for (int i = 0; i < numSpaces; i++) {
-        putchar(' ');
-    }
-    printf("%c\n", c);
-}
-
-/*
-
-FIR filter designed with
-http://t-filter.appspot.com
-
-sampling frequency: 48000 Hz
-
-* 0 Hz - 8000 Hz
-  gain = 1.2
-  desired ripple = 5 dB
-  actual ripple = 5.595266169703693 dB
-
-* 12000 Hz - 20000 Hz
-  gain = 0
-  desired attenuation = -40 dB
-  actual attenuation = -37.58691566571914 dB
-
-*/
-
-#define FILTER_TAP_NUM 11
-
-static const float sFilterTaps8000[FILTER_TAP_NUM] = {
-        -0.05944219353343189f,
-        -0.07303434839503208f,
-        -0.037690487672689066f,
-        0.1870480506596512f,
-        0.3910337357836833f,
-        0.5333672385425637f,
-        0.3910337357836833f,
-        0.1870480506596512f,
-        -0.037690487672689066f,
-        -0.07303434839503208f,
-        -0.05944219353343189f
-};
-
-class LowPassFilter {
-public:
-
-    /*
-     * Filter one input sample.
-     * @return filtered output
-     */
-    float filter(float input) {
-        float output = 0.0f;
-        mX[mCursor] = input;
-        // Index backwards over x.
-        int xIndex = mCursor + FILTER_TAP_NUM;
-        // Write twice so we avoid having to wrap in the middle of the convolution.
-        mX[xIndex] = input;
-        for (int i = 0; i < FILTER_TAP_NUM; i++) {
-            output += sFilterTaps8000[i] * mX[xIndex--];
-        }
-        if (++mCursor >= FILTER_TAP_NUM) {
-            mCursor = 0;
-        }
-        return output;
-    }
-
-    /**
-     * @return true if PASSED
-     */
-    bool test() {
-        // Measure the impulse of the filter at different phases so we exercise
-        // all the wraparound cases in the FIR.
-        for (int offset = 0; offset < (FILTER_TAP_NUM * 2); offset++ ) {
-            // printf("LowPassFilter: cursor = %d\n", mCursor);
-            // Offset by one each time.
-            if (filter(0.0f) != 0.0f) {
-                printf("ERROR: filter should return 0.0 before impulse response\n");
-                return false;
-            }
-            for (int i = 0; i < FILTER_TAP_NUM; i++) {
-                float output = filter((i == 0) ? 1.0f : 0.0f); // impulse
-                if (output != sFilterTaps8000[i]) {
-                    printf("ERROR: filter should return impulse response\n");
-                    return false;
-                }
-            }
-            for (int i = 0; i < FILTER_TAP_NUM; i++) {
-                if (filter(0.0f) != 0.0f) {
-                    printf("ERROR: filter should return 0.0 after impulse response\n");
-                    return false;
-                }
-            }
-        }
-        return true;
-    }
-
-private:
-    float   mX[FILTER_TAP_NUM * 2]{}; // twice as big as needed to avoid wrapping
-    int32_t mCursor = 0;
-};
-
-// A narrow impulse seems to have better immunity against over estimating the
-// latency due to detecting subharmonics by the auto-correlator.
-static const float s_Impulse[] = {
-        0.0f, 0.0f, 0.0f, 0.0f, 0.3f, // silence on each side of the impulse
-        0.99f, 0.0f, -0.99f, // bipolar with one zero crossing in middle
-        -0.3f, 0.0f, 0.0f, 0.0f, 0.0f
-};
-
-constexpr int32_t kImpulseSizeInFrames = (int32_t)(sizeof(s_Impulse) / sizeof(s_Impulse[0]));
-
-class PseudoRandom {
-public:
-    PseudoRandom() {}
-    PseudoRandom(int64_t seed)
-            :    mSeed(seed)
-    {}
-
-    /**
-     * Returns the next random double from -1.0 to 1.0
-     *
-     * @return value from -1.0 to 1.0
-     */
-     double nextRandomDouble() {
-        return nextRandomInteger() * (0.5 / (((int32_t)1) << 30));
-    }
-
-    /** Calculate random 32 bit number using linear-congruential method. */
-    int32_t nextRandomInteger() {
-        // Use values for 64-bit sequence from MMIX by Donald Knuth.
-        mSeed = (mSeed * (int64_t)6364136223846793005) + (int64_t)1442695040888963407;
-        return (int32_t) (mSeed >> 32); // The higher bits have a longer sequence.
-    }
-
-private:
-    int64_t mSeed = 99887766;
-};
-
-
-typedef struct LatencyReport_s {
-    double latencyInFrames;
-    double confidence;
-} LatencyReport;
-
-static double calculateCorrelation(const float *a,
-                                   const float *b,
-                                   int windowSize)
-{
-    double correlation = 0.0;
-    double sumProducts = 0.0;
-    double sumSquares = 0.0;
-
-    // Correlate a against b.
-    for (int i = 0; i < windowSize; i++) {
-        float s1 = a[i];
-        float s2 = b[i];
-        // Use a normalized cross-correlation.
-        sumProducts += s1 * s2;
-        sumSquares += ((s1 * s1) + (s2 * s2));
-    }
-
-    if (sumSquares >= 0.00000001) {
-        correlation = (float) (2.0 * sumProducts / sumSquares);
-    }
-    return correlation;
-}
-
-static int measureLatencyFromEchos(const float *data,
-                                   int32_t numFloats,
-                                   int32_t sampleRate,
-                                   LatencyReport *report) {
-    // Allocate results array
-    const int minReasonableLatencyFrames = sampleRate * kMinLatencyMillis / kMillisPerSecond;
-    const int maxReasonableLatencyFrames = sampleRate * kMaxLatencyMillis / kMillisPerSecond;
-    int32_t maxCorrelationSize = maxReasonableLatencyFrames * 3;
-    int numCorrelations = std::min(numFloats, maxCorrelationSize);
-    float *correlations = new float[numCorrelations]{};
-    float *harmonicSums = new float[numCorrelations]{};
-
-    // Perform sliding auto-correlation.
-    // Skip first frames to avoid huge peak at zero offset.
-    for (int i = minReasonableLatencyFrames; i < numCorrelations; i++) {
-        int32_t remaining = numFloats - i;
-        float correlation = (float) calculateCorrelation(&data[i], data, remaining);
-        correlations[i] = correlation;
-        // printf("correlation[%d] = %f\n", ic, correlation);
-    }
-
-    // Apply a technique similar to Harmonic Product Spectrum Analysis to find echo fundamental.
-    // Add higher harmonics mapped onto lower harmonics. This reinforces the "fundamental" echo.
-    const int numEchoes = 8;
-    for (int partial = 1; partial < numEchoes; partial++) {
-        for (int i = minReasonableLatencyFrames; i < numCorrelations; i++) {
-            harmonicSums[i / partial] += correlations[i] / partial;
-        }
-    }
-
-    // Find highest peak in correlation array.
-    float maxCorrelation = 0.0;
-    int peakIndex = 0;
-    for (int i = 0; i < numCorrelations; i++) {
-        if (harmonicSums[i] > maxCorrelation) {
-            maxCorrelation = harmonicSums[i];
-            peakIndex = i;
-            // printf("maxCorrelation = %f at %d\n", maxCorrelation, peakIndex);
-        }
-    }
-    report->latencyInFrames = peakIndex;
-/*
-    {
-        int32_t topPeak = peakIndex * 7 / 2;
-        for (int i = 0; i < topPeak; i++) {
-            float sample = harmonicSums[i];
-            printf("%4d: %7.5f ", i, sample);
-            printAudioScope(sample);
-        }
-    }
-*/
-
-    // Calculate confidence.
-    if (maxCorrelation < 0.001) {
-        report->confidence = 0.0;
-    } else {
-        // Compare peak to average value around peak.
-        int32_t numSamples = std::min(numCorrelations, peakIndex * 2);
-        if (numSamples <= 0) {
-            report->confidence = 0.0;
-        } else {
-            double sum = 0.0;
-            for (int i = 0; i < numSamples; i++) {
-                sum += harmonicSums[i];
-            }
-            const double average = sum / numSamples;
-            const double ratio = average / maxCorrelation; // will be < 1.0
-            report->confidence = 1.0 - sqrt(ratio);
-        }
-    }
-
-    delete[] correlations;
-    delete[] harmonicSums;
-    return 0;
-}
-
-class AudioRecording
-{
-public:
-    AudioRecording() {
-    }
-    ~AudioRecording() {
-        delete[] mData;
-    }
-
-    void allocate(int maxFrames) {
-        delete[] mData;
-        mData = new float[maxFrames];
-        mMaxFrames = maxFrames;
-    }
-
-    // Write SHORT data from the first channel.
-    int32_t write(int16_t *inputData, int32_t inputChannelCount, int32_t numFrames) {
-        // stop at end of buffer
-        if ((mFrameCounter + numFrames) > mMaxFrames) {
-            numFrames = mMaxFrames - mFrameCounter;
-        }
-        for (int i = 0; i < numFrames; i++) {
-            mData[mFrameCounter++] = inputData[i * inputChannelCount] * (1.0f / 32768);
-        }
-        return numFrames;
-    }
-
-    // Write FLOAT data from the first channel.
-    int32_t write(float *inputData, int32_t inputChannelCount, int32_t numFrames) {
-        // stop at end of buffer
-        if ((mFrameCounter + numFrames) > mMaxFrames) {
-            numFrames = mMaxFrames - mFrameCounter;
-        }
-        for (int i = 0; i < numFrames; i++) {
-            mData[mFrameCounter++] = inputData[i * inputChannelCount];
-        }
-        return numFrames;
-    }
-
-    int32_t size() {
-        return mFrameCounter;
-    }
-
-    float *getData() {
-        return mData;
-    }
-
-    void setSampleRate(int32_t sampleRate) {
-        mSampleRate = sampleRate;
-    }
-
-    int32_t getSampleRate() {
-        return mSampleRate;
-    }
-
-    int save(const char *fileName, bool writeShorts = true) {
-        SNDFILE *sndFile = nullptr;
-        int written = 0;
-        SF_INFO info = {
-                .frames = mFrameCounter,
-                .samplerate = mSampleRate,
-                .channels = 1,
-                .format = SF_FORMAT_WAV | (writeShorts ? SF_FORMAT_PCM_16 : SF_FORMAT_FLOAT)
-        };
-
-        sndFile = sf_open(fileName, SFM_WRITE, &info);
-        if (sndFile == nullptr) {
-            printf("AudioRecording::save(%s) failed to open file\n", fileName);
-            return -errno;
-        }
-
-        written = sf_writef_float(sndFile, mData, mFrameCounter);
-
-        sf_close(sndFile);
-        return written;
-    }
-
-    int load(const char *fileName) {
-        SNDFILE *sndFile = nullptr;
-        SF_INFO info;
-
-        sndFile = sf_open(fileName, SFM_READ, &info);
-        if (sndFile == nullptr) {
-            printf("AudioRecording::load(%s) failed to open file\n", fileName);
-            return -errno;
-        }
-
-        assert(info.channels == 1);
-        assert(info.format == SF_FORMAT_FLOAT);
-
-        setSampleRate(info.samplerate);
-        allocate(info.frames);
-        mFrameCounter = sf_readf_float(sndFile, mData, info.frames);
-
-        sf_close(sndFile);
-        return mFrameCounter;
-    }
-
-    /**
-     * Square the samples so they are all positive and so the peaks are emphasized.
-     */
-    void square() {
-        for (int i = 0; i < mFrameCounter; i++) {
-            const float sample = mData[i];
-            mData[i] = sample * sample;
-        }
-    }
-
-    /**
-     * Low pass filter the recording using a simple FIR filter.
-     * Note that the lowpass filter cutoff tracks the sample rate.
-     * That is OK because the impulse width is a fixed number of samples.
-     */
-    void lowPassFilter() {
-        for (int i = 0; i < mFrameCounter; i++) {
-            mData[i] = mLowPassFilter.filter(mData[i]);
-        }
-    }
-
-    /**
-     * Remove DC offset using a one-pole one-zero IIR filter.
-     */
-    void dcBlocker() {
-        const float R = 0.996; // narrow notch at zero Hz
-        float x1 = 0.0;
-        float y1 = 0.0;
-        for (int i = 0; i < mFrameCounter; i++) {
-            const float x = mData[i];
-            const float y = x - x1 + (R * y1);
-            mData[i] = y;
-            y1 = y;
-            x1 = x;
-        }
-    }
-
-private:
-    float        *mData = nullptr;
-    int32_t       mFrameCounter = 0;
-    int32_t       mMaxFrames = 0;
-    int32_t       mSampleRate = kDefaultSampleRate; // common default
-    LowPassFilter mLowPassFilter;
-};
-
-// ====================================================================================
-class LoopbackProcessor {
-public:
-    virtual ~LoopbackProcessor() = default;
-
-
-    enum process_result {
-        PROCESS_RESULT_OK,
-        PROCESS_RESULT_GLITCH
-    };
-
-    virtual void reset() {}
-
-    virtual process_result process(float *inputData, int inputChannelCount,
-                 float *outputData, int outputChannelCount,
-                 int numFrames) = 0;
-
-
-    virtual void report() = 0;
-
-    virtual void printStatus() {};
-
-    int32_t getResult() {
-        return mResult;
-    }
-
-    void setResult(int32_t result) {
-        mResult = result;
-    }
-
-    virtual bool isDone() {
-        return false;
-    }
-
-    virtual int save(const char *fileName) {
-        (void) fileName;
-        return AAUDIO_ERROR_UNIMPLEMENTED;
-    }
-
-    virtual int load(const char *fileName) {
-        (void) fileName;
-        return AAUDIO_ERROR_UNIMPLEMENTED;
-    }
-
-    virtual void setSampleRate(int32_t sampleRate) {
-        mSampleRate = sampleRate;
-    }
-
-    int32_t getSampleRate() {
-        return mSampleRate;
-    }
-
-    // Measure peak amplitude of buffer.
-    static float measurePeakAmplitude(float *inputData, int inputChannelCount, int numFrames) {
-        float peak = 0.0f;
-        for (int i = 0; i < numFrames; i++) {
-            const float pos = fabs(*inputData);
-            if (pos > peak) {
-                peak = pos;
-            }
-            inputData += inputChannelCount;
-        }
-        return peak;
-    }
-
-
-private:
-    int32_t mSampleRate = kDefaultSampleRate;
-    int32_t mResult = 0;
-};
-
-class PeakDetector {
-public:
-    float process(float input) {
-        float output = mPrevious * mDecay;
-        if (input > output) {
-            output = input;
-        }
-        mPrevious = output;
-        return output;
-    }
-
-private:
-    float  mDecay = 0.99f;
-    float  mPrevious = 0.0f;
-};
-
-// ====================================================================================
-/**
- * Measure latency given a loopback stream data.
- * Uses a state machine to cycle through various stages including:
- *
- */
-class EchoAnalyzer : public LoopbackProcessor {
-public:
-
-    EchoAnalyzer() : LoopbackProcessor() {
-        mAudioRecording.allocate(2 * getSampleRate());
-        mAudioRecording.setSampleRate(getSampleRate());
-    }
-
-    void setSampleRate(int32_t sampleRate) override {
-        LoopbackProcessor::setSampleRate(sampleRate);
-        mAudioRecording.setSampleRate(sampleRate);
-    }
-
-    void reset() override {
-        mDownCounter = getSampleRate() / 2;
-        mLoopCounter = 0;
-        mMeasuredLoopGain = 0.0f;
-        mEchoGain = 1.0f;
-        mState = STATE_INITIAL_SILENCE;
-    }
-
-    virtual bool isDone() {
-        return mState == STATE_DONE || mState == STATE_FAILED;
-    }
-
-    void setGain(float gain) {
-        mEchoGain = gain;
-    }
-
-    float getGain() {
-        return mEchoGain;
-    }
-
-    bool testLowPassFilter() {
-        LowPassFilter filter;
-        return filter.test();
-    }
-
-    void report() override {
-        printf("EchoAnalyzer ---------------\n");
-        if (getResult() != 0) {
-            printf(LOOPBACK_RESULT_TAG "result          = %d\n", getResult());
-            return;
-        }
-
-        // printf("LowPassFilter test %s\n", testLowPassFilter() ? "PASSED" : "FAILED");
-
-        printf(LOOPBACK_RESULT_TAG "measured.gain          = %8f\n", mMeasuredLoopGain);
-        printf(LOOPBACK_RESULT_TAG "echo.gain              = %8f\n", mEchoGain);
-        printf(LOOPBACK_RESULT_TAG "test.state             = %8d\n", mState);
-        printf(LOOPBACK_RESULT_TAG "test.state.name        = %8s\n", convertStateToText(mState));
-
-        if (mState == STATE_WAITING_FOR_SILENCE) {
-            printf("WARNING - Stuck waiting for silence. Input may be too noisy!\n");
-            setResult(ERROR_NOISY);
-        } else if (mMeasuredLoopGain >= 0.9999) {
-            printf("   ERROR - clipping, turn down volume slightly\n");
-            setResult(ERROR_CLIPPING);
-        } else if (mState != STATE_DONE && mState != STATE_GATHERING_ECHOS) {
-            printf("WARNING - Bad state. Check volume on device.\n");
-            setResult(ERROR_INVALID_STATE);
-        } else {
-            // Cleanup the signal to improve the auto-correlation.
-            mAudioRecording.dcBlocker();
-            mAudioRecording.square();
-            mAudioRecording.lowPassFilter();
-
-            printf("Please wait several seconds for auto-correlation to complete.\n");
-            measureLatencyFromEchos(mAudioRecording.getData(),
-                                    mAudioRecording.size(),
-                                    getSampleRate(),
-                                    &mLatencyReport);
-
-            double latencyMillis = kMillisPerSecond * (double) mLatencyReport.latencyInFrames
-                                   / getSampleRate();
-            printf(LOOPBACK_RESULT_TAG "latency.frames         = %8.2f\n",
-                   mLatencyReport.latencyInFrames);
-            printf(LOOPBACK_RESULT_TAG "latency.msec           = %8.2f\n",
-                   latencyMillis);
-            printf(LOOPBACK_RESULT_TAG "latency.confidence     = %8.6f\n",
-                   mLatencyReport.confidence);
-            if (mLatencyReport.confidence < kMinimumConfidence) {
-                printf("   ERROR - confidence too low!\n");
-                setResult(ERROR_CONFIDENCE);
-            }
-        }
-    }
-
-    void printStatus() override {
-        printf("st = %d, echo gain = %f ", mState, mEchoGain);
-    }
-
-    void sendImpulses(float *outputData, int outputChannelCount, int numFrames) {
-        while (numFrames-- > 0) {
-            float sample = s_Impulse[mSampleIndex++];
-            if (mSampleIndex >= kImpulseSizeInFrames) {
-                mSampleIndex = 0;
-            }
-
-            *outputData = sample;
-            outputData += outputChannelCount;
-        }
-    }
-
-    void sendOneImpulse(float *outputData, int outputChannelCount) {
-        mSampleIndex = 0;
-        sendImpulses(outputData, outputChannelCount, kImpulseSizeInFrames);
-    }
-
-    // @return number of frames for a typical block of processing
-    int32_t getBlockFrames() {
-        return getSampleRate() / 8;
-    }
-
-    process_result process(float *inputData, int inputChannelCount,
-                 float *outputData, int outputChannelCount,
-                 int numFrames) override {
-        int channelsValid = std::min(inputChannelCount, outputChannelCount);
-        float peak = 0.0f;
-        int numWritten;
-        int numSamples;
-
-        echo_state nextState = mState;
-
-        switch (mState) {
-            case STATE_INITIAL_SILENCE:
-                // Output silence at the beginning.
-                numSamples = numFrames * outputChannelCount;
-                for (int i = 0; i < numSamples; i++) {
-                    outputData[i] = 0;
-                }
-                mDownCounter -= numFrames;
-                if (mDownCounter <= 0) {
-                    nextState = STATE_MEASURING_GAIN;
-                    //printf("%5d: switch to STATE_MEASURING_GAIN\n", mLoopCounter);
-                    mDownCounter = getBlockFrames() * 2;
-                }
-                break;
-
-            case STATE_MEASURING_GAIN:
-                sendImpulses(outputData, outputChannelCount, numFrames);
-                peak = measurePeakAmplitude(inputData, inputChannelCount, numFrames);
-                // If we get several in a row then go to next state.
-                if (peak > mPulseThreshold) {
-                    mDownCounter -= numFrames;
-                    if (mDownCounter <= 0) {
-                        //printf("%5d: switch to STATE_WAITING_FOR_SILENCE, measured peak = %f\n",
-                        //       mLoopCounter, peak);
-                        mDownCounter = getBlockFrames();
-                        mMeasuredLoopGain = peak;  // assumes original pulse amplitude is one
-                        mSilenceThreshold = peak * 0.1; // scale silence to measured pulse
-                        // Calculate gain that will give us a nice decaying echo.
-                        mEchoGain = mDesiredEchoGain / mMeasuredLoopGain;
-                        if (mEchoGain > kMaxEchoGain) {
-                            printf("ERROR - loop gain too low. Increase the volume.\n");
-                            nextState = STATE_FAILED;
-                        } else {
-                            nextState = STATE_WAITING_FOR_SILENCE;
-                        }
-                    }
-                } else if (numFrames > kImpulseSizeInFrames){ // ignore short callbacks
-                    mDownCounter = getBlockFrames();
-                }
-                break;
-
-            case STATE_WAITING_FOR_SILENCE:
-                // Output silence and wait for the echos to die down.
-                numSamples = numFrames * outputChannelCount;
-                for (int i = 0; i < numSamples; i++) {
-                    outputData[i] = 0;
-                }
-                peak = measurePeakAmplitude(inputData, inputChannelCount, numFrames);
-                // If we get several in a row then go to next state.
-                if (peak < mSilenceThreshold) {
-                    mDownCounter -= numFrames;
-                    if (mDownCounter <= 0) {
-                        nextState = STATE_SENDING_PULSE;
-                        //printf("%5d: switch to STATE_SENDING_PULSE\n", mLoopCounter);
-                        mDownCounter = getBlockFrames();
-                    }
-                } else {
-                    mDownCounter = getBlockFrames();
-                }
-                break;
-
-            case STATE_SENDING_PULSE:
-                mAudioRecording.write(inputData, inputChannelCount, numFrames);
-                sendOneImpulse(outputData, outputChannelCount);
-                nextState = STATE_GATHERING_ECHOS;
-                //printf("%5d: switch to STATE_GATHERING_ECHOS\n", mLoopCounter);
-                break;
-
-            case STATE_GATHERING_ECHOS:
-                numWritten = mAudioRecording.write(inputData, inputChannelCount, numFrames);
-                peak = measurePeakAmplitude(inputData, inputChannelCount, numFrames);
-                if (peak > mMeasuredLoopGain) {
-                    mMeasuredLoopGain = peak;  // AGC might be raising gain so adjust it on the fly.
-                    // Recalculate gain that will give us a nice decaying echo.
-                    mEchoGain = mDesiredEchoGain / mMeasuredLoopGain;
-                }
-                // Echo input to output.
-                for (int i = 0; i < numFrames; i++) {
-                    int ic;
-                    for (ic = 0; ic < channelsValid; ic++) {
-                        outputData[ic] = inputData[ic] * mEchoGain;
-                    }
-                    for (; ic < outputChannelCount; ic++) {
-                        outputData[ic] = 0;
-                    }
-                    inputData += inputChannelCount;
-                    outputData += outputChannelCount;
-                }
-                if (numWritten  < numFrames) {
-                    nextState = STATE_DONE;
-                }
-                break;
-
-            case STATE_DONE:
-            case STATE_FAILED:
-            default:
-                break;
-        }
-
-        mState = nextState;
-        mLoopCounter++;
-        return PROCESS_RESULT_OK;
-    }
-
-    int save(const char *fileName) override {
-        return mAudioRecording.save(fileName);
-    }
-
-    int load(const char *fileName) override {
-        int result = mAudioRecording.load(fileName);
-        setSampleRate(mAudioRecording.getSampleRate());
-        mState = STATE_DONE;
-        return result;
-    }
-
-private:
-
-    enum error_code {
-        ERROR_OK = 0,
-        ERROR_NOISY = -99,
-        ERROR_CLIPPING,
-        ERROR_CONFIDENCE,
-        ERROR_INVALID_STATE
-    };
-
-    enum echo_state {
-        STATE_INITIAL_SILENCE,
-        STATE_MEASURING_GAIN,
-        STATE_WAITING_FOR_SILENCE,
-        STATE_SENDING_PULSE,
-        STATE_GATHERING_ECHOS,
-        STATE_DONE,
-        STATE_FAILED
-    };
-
-    const char *convertStateToText(echo_state state) {
-        const char *result = "Unknown";
-        switch(state) {
-            case STATE_INITIAL_SILENCE:
-                result = "INIT";
-                break;
-            case STATE_MEASURING_GAIN:
-                result = "GAIN";
-                break;
-            case STATE_WAITING_FOR_SILENCE:
-                result = "SILENCE";
-                break;
-            case STATE_SENDING_PULSE:
-                result = "PULSE";
-                break;
-            case STATE_GATHERING_ECHOS:
-                result = "ECHOS";
-                break;
-            case STATE_DONE:
-                result = "DONE";
-                break;
-            case STATE_FAILED:
-                result = "FAILED";
-                break;
-        }
-        return result;
-    }
-
-
-    int32_t         mDownCounter = 500;
-    int32_t         mLoopCounter = 0;
-    int32_t         mSampleIndex = 0;
-    float           mPulseThreshold = 0.02f;
-    float           mSilenceThreshold = 0.002f;
-    float           mMeasuredLoopGain = 0.0f;
-    float           mDesiredEchoGain = 0.95f;
-    float           mEchoGain = 1.0f;
-    echo_state      mState = STATE_INITIAL_SILENCE;
-
-    AudioRecording  mAudioRecording; // contains only the input after the gain detection burst
-    LatencyReport   mLatencyReport;
-    // PeakDetector    mPeakDetector;
-};
-
-
-// ====================================================================================
-/**
- * Output a steady sinewave and analyze the return signal.
- *
- * Use a cosine transform to measure the predicted magnitude and relative phase of the
- * looped back sine wave. Then generate a predicted signal and compare with the actual signal.
- */
-class SineAnalyzer : public LoopbackProcessor {
-public:
-
-    void report() override {
-        printf("SineAnalyzer ------------------\n");
-        printf(LOOPBACK_RESULT_TAG "peak.amplitude     = %8f\n", mPeakAmplitude);
-        printf(LOOPBACK_RESULT_TAG "sine.magnitude     = %8f\n", mMagnitude);
-        printf(LOOPBACK_RESULT_TAG "peak.noise         = %8f\n", mPeakNoise);
-        printf(LOOPBACK_RESULT_TAG "rms.noise          = %8f\n", mRootMeanSquareNoise);
-        float amplitudeRatio = mMagnitude / mPeakNoise;
-        float signalToNoise = amplitudeRatio * amplitudeRatio;
-        printf(LOOPBACK_RESULT_TAG "signal.to.noise    = %8.2f\n", signalToNoise);
-        float signalToNoiseDB = 10.0 * log(signalToNoise);
-        printf(LOOPBACK_RESULT_TAG "signal.to.noise.db = %8.2f\n", signalToNoiseDB);
-        if (signalToNoiseDB < MIN_SNRATIO_DB) {
-            printf("ERROR - signal to noise ratio is too low! < %d dB. Adjust volume.\n", MIN_SNRATIO_DB);
-            setResult(ERROR_NOISY);
-        }
-        printf(LOOPBACK_RESULT_TAG "frames.accumulated = %8d\n", mFramesAccumulated);
-        printf(LOOPBACK_RESULT_TAG "sine.period        = %8d\n", mSinePeriod);
-        printf(LOOPBACK_RESULT_TAG "test.state         = %8d\n", mState);
-        printf(LOOPBACK_RESULT_TAG "frame.count        = %8d\n", mFrameCounter);
-        // Did we ever get a lock?
-        bool gotLock = (mState == STATE_LOCKED) || (mGlitchCount > 0);
-        if (!gotLock) {
-            printf("ERROR - failed to lock on reference sine tone\n");
-            setResult(ERROR_NO_LOCK);
-        } else {
-            // Only print if meaningful.
-            printf(LOOPBACK_RESULT_TAG "glitch.count       = %8d\n", mGlitchCount);
-            printf(LOOPBACK_RESULT_TAG "max.glitch         = %8f\n", mMaxGlitchDelta);
-            if (mGlitchCount > 0) {
-                printf("ERROR - number of glitches > 0\n");
-                setResult(ERROR_GLITCHES);
-            }
-        }
-    }
-
-    void printStatus() override {
-        printf("st = %d, #gl = %3d,", mState, mGlitchCount);
-    }
-
-    double calculateMagnitude(double *phasePtr = NULL) {
-        if (mFramesAccumulated == 0) {
-            return 0.0;
-        }
-        double sinMean = mSinAccumulator / mFramesAccumulated;
-        double cosMean = mCosAccumulator / mFramesAccumulated;
-        double magnitude = 2.0 * sqrt( (sinMean * sinMean) + (cosMean * cosMean ));
-        if( phasePtr != NULL )
-        {
-            double phase = M_PI_2 - atan2( sinMean, cosMean );
-            *phasePtr = phase;
-        }
-        return magnitude;
-    }
-
-    /**
-     * @param inputData contains microphone data with sine signal feedback
-     * @param outputData contains the reference sine wave
-     */
-    process_result process(float *inputData, int inputChannelCount,
-                 float *outputData, int outputChannelCount,
-                 int numFrames) override {
-        process_result result = PROCESS_RESULT_OK;
-        mProcessCount++;
-
-        float peak = measurePeakAmplitude(inputData, inputChannelCount, numFrames);
-        if (peak > mPeakAmplitude) {
-            mPeakAmplitude = peak;
-        }
-
-        for (int i = 0; i < numFrames; i++) {
-            bool sineEnabled = true;
-            float sample = inputData[i * inputChannelCount];
-
-            float sinOut = sinf(mPhase);
-
-            switch (mState) {
-                case STATE_IDLE:
-                    sineEnabled = false;
-                    mDownCounter--;
-                    if (mDownCounter <= 0) {
-                        mState = STATE_MEASURE_NOISE;
-                        mDownCounter = NOISE_FRAME_COUNT;
-                    }
-                    break;
-                case STATE_MEASURE_NOISE:
-                    sineEnabled = false;
-                    mPeakNoise = std::max(abs(sample), mPeakNoise);
-                    mNoiseSumSquared += sample * sample;
-                    mDownCounter--;
-                    if (mDownCounter <= 0) {
-                        mState = STATE_WAITING_FOR_SIGNAL;
-                        mRootMeanSquareNoise = sqrt(mNoiseSumSquared / NOISE_FRAME_COUNT);
-                        mTolerance = std::max(MIN_TOLERANCE, mPeakNoise * 2.0f);
-                        mPhase = 0.0; // prevent spike at start
-                    }
-                    break;
-
-                case STATE_IMMUNE:
-                    mDownCounter--;
-                    if (mDownCounter <= 0) {
-                        mState = STATE_WAITING_FOR_SIGNAL;
-                    }
-                    break;
-
-                case STATE_WAITING_FOR_SIGNAL:
-                    if (peak > mThreshold) {
-                        mState = STATE_WAITING_FOR_LOCK;
-                        //printf("%5d: switch to STATE_WAITING_FOR_LOCK\n", mFrameCounter);
-                        resetAccumulator();
-                    }
-                    break;
-
-                case STATE_WAITING_FOR_LOCK:
-                    mSinAccumulator += sample * sinOut;
-                    mCosAccumulator += sample * cosf(mPhase);
-                    mFramesAccumulated++;
-                    // Must be a multiple of the period or the calculation will not be accurate.
-                    if (mFramesAccumulated == mSinePeriod * PERIODS_NEEDED_FOR_LOCK) {
-                        mPhaseOffset = 0.0;
-                        mMagnitude = calculateMagnitude(&mPhaseOffset);
-                        if (mMagnitude > mThreshold) {
-                            if (fabs(mPreviousPhaseOffset - mPhaseOffset) < 0.001) {
-                                mState = STATE_LOCKED;
-                                //printf("%5d: switch to STATE_LOCKED\n", mFrameCounter);
-                            }
-                            mPreviousPhaseOffset = mPhaseOffset;
-                        }
-                        resetAccumulator();
-                    }
-                    break;
-
-                case STATE_LOCKED: {
-                    // Predict next sine value
-                    float predicted = sinf(mPhase + mPhaseOffset) * mMagnitude;
-                    // printf("    predicted = %f, actual = %f\n", predicted, sample);
-
-                    float diff = predicted - sample;
-                    float absDiff = fabs(diff);
-                    mMaxGlitchDelta = std::max(mMaxGlitchDelta, absDiff);
-                    if (absDiff > mTolerance) {
-                        mGlitchCount++;
-                        result = PROCESS_RESULT_GLITCH;
-                        //printf("%5d: Got a glitch # %d, predicted = %f, actual = %f\n",
-                        //       mFrameCounter, mGlitchCount, predicted, sample);
-                        mState = STATE_IMMUNE;
-                        mDownCounter = mSinePeriod * PERIODS_IMMUNE;
-                    }
-
-                    // Track incoming signal and slowly adjust magnitude to account
-                    // for drift in the DRC or AGC.
-                    mSinAccumulator += sample * sinOut;
-                    mCosAccumulator += sample * cosf(mPhase);
-                    mFramesAccumulated++;
-                    // Must be a multiple of the period or the calculation will not be accurate.
-                    if (mFramesAccumulated == mSinePeriod) {
-                        const double coefficient = 0.1;
-                        double phaseOffset = 0.0;
-                        double magnitude = calculateMagnitude(&phaseOffset);
-                        // One pole averaging filter.
-                        mMagnitude = (mMagnitude * (1.0 - coefficient)) + (magnitude * coefficient);
-                        resetAccumulator();
-                    }
-                } break;
-            }
-
-            float output = 0.0f;
-            // Output sine wave so we can measure it.
-            if (sineEnabled) {
-                output = (sinOut * mOutputAmplitude)
-                         + (mWhiteNoise.nextRandomDouble() * mNoiseAmplitude);
-                // printf("%5d: sin(%f) = %f, %f\n", i, mPhase, sinOut,  mPhaseIncrement);
-                // advance and wrap phase
-                mPhase += mPhaseIncrement;
-                if (mPhase > M_PI) {
-                    mPhase -= (2.0 * M_PI);
-                }
-            }
-            outputData[i * outputChannelCount] = output;
-
-
-            mFrameCounter++;
-        }
-        return result;
-    }
-
-    void resetAccumulator() {
-        mFramesAccumulated = 0;
-        mSinAccumulator = 0.0;
-        mCosAccumulator = 0.0;
-    }
-
-    void reset() override {
-        mGlitchCount = 0;
-        mState = STATE_IDLE;
-        mDownCounter = IDLE_FRAME_COUNT;
-        mPhaseIncrement = 2.0 * M_PI / mSinePeriod;
-        printf("phaseInc = %f for period %d\n", mPhaseIncrement, mSinePeriod);
-        resetAccumulator();
-        mProcessCount = 0;
-        mPeakNoise = 0.0f;
-        mNoiseSumSquared = 0.0;
-        mRootMeanSquareNoise = 0.0;
-        mPhase = 0.0f;
-        mMaxGlitchDelta = 0.0;
-    }
-
-private:
-
-    enum error_code {
-        OK,
-        ERROR_NO_LOCK = -80,
-        ERROR_GLITCHES,
-        ERROR_NOISY
-    };
-
-    enum sine_state_t {
-        STATE_IDLE,
-        STATE_MEASURE_NOISE,
-        STATE_IMMUNE,
-        STATE_WAITING_FOR_SIGNAL,
-        STATE_WAITING_FOR_LOCK,
-        STATE_LOCKED
-    };
-
-    enum constants {
-        // Arbitrary durations, assuming 48000 Hz
-        IDLE_FRAME_COUNT = 48 * 100,
-        NOISE_FRAME_COUNT = 48 * 600,
-        PERIODS_NEEDED_FOR_LOCK = 8,
-        PERIODS_IMMUNE = 2,
-        MIN_SNRATIO_DB = 65
-    };
-
-    static constexpr float MIN_TOLERANCE = 0.01;
-
-    int     mSinePeriod = 79;
-    double  mPhaseIncrement = 0.0;
-    double  mPhase = 0.0;
-    double  mPhaseOffset = 0.0;
-    double  mPreviousPhaseOffset = 0.0;
-    double  mMagnitude = 0.0;
-    double  mThreshold = 0.005;
-    double  mTolerance = MIN_TOLERANCE;
-    int32_t mFramesAccumulated = 0;
-    int32_t mProcessCount = 0;
-    double  mSinAccumulator = 0.0;
-    double  mCosAccumulator = 0.0;
-    float   mMaxGlitchDelta = 0.0f;
-    int32_t mGlitchCount = 0;
-    double  mPeakAmplitude = 0.0;
-    int     mDownCounter = IDLE_FRAME_COUNT;
-    int32_t mFrameCounter = 0;
-    float   mOutputAmplitude = 0.75;
-
-    // measure background noise
-    float   mPeakNoise = 0.0f;
-    double  mNoiseSumSquared = 0.0;
-    double  mRootMeanSquareNoise = 0.0;
-
-    PseudoRandom  mWhiteNoise;
-    float   mNoiseAmplitude = 0.00; // Used to experiment with warbling caused by DRC.
-
-    sine_state_t  mState = STATE_IDLE;
-};
-
-#undef LOOPBACK_RESULT_TAG
-
-#endif /* AAUDIO_EXAMPLES_LOOPBACK_ANALYSER_H */
diff --git a/media/libaaudio/examples/loopback/src/analyzer/GlitchAnalyzer.h b/media/libaaudio/examples/loopback/src/analyzer/GlitchAnalyzer.h
new file mode 100644
index 0000000..04435d1
--- /dev/null
+++ b/media/libaaudio/examples/loopback/src/analyzer/GlitchAnalyzer.h
@@ -0,0 +1,445 @@
+/*
+ * 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 ANALYZER_GLITCH_ANALYZER_H
+#define ANALYZER_GLITCH_ANALYZER_H
+
+#include <algorithm>
+#include <cctype>
+#include <iomanip>
+#include <iostream>
+
+#include "LatencyAnalyzer.h"
+#include "PseudoRandom.h"
+
+/**
+ * Output a steady sine wave and analyze the return signal.
+ *
+ * Use a cosine transform to measure the predicted magnitude and relative phase of the
+ * looped back sine wave. Then generate a predicted signal and compare with the actual signal.
+ */
+class GlitchAnalyzer : public LoopbackProcessor {
+public:
+
+    int32_t getState() const {
+        return mState;
+    }
+
+    double getPeakAmplitude() const {
+        return mPeakFollower.getLevel();
+    }
+
+    double getTolerance() {
+        return mTolerance;
+    }
+
+    void setTolerance(double tolerance) {
+        mTolerance = tolerance;
+        mScaledTolerance = mMagnitude * mTolerance;
+    }
+
+    void setMagnitude(double magnitude) {
+        mMagnitude = magnitude;
+        mScaledTolerance = mMagnitude * mTolerance;
+    }
+
+    int32_t getGlitchCount() const {
+        return mGlitchCount;
+    }
+
+    int32_t getStateFrameCount(int state) const {
+        return mStateFrameCounters[state];
+    }
+
+    double getSignalToNoiseDB() {
+        static const double threshold = 1.0e-14;
+        if (mMeanSquareSignal < threshold || mMeanSquareNoise < threshold) {
+            return 0.0;
+        } else {
+            double signalToNoise = mMeanSquareSignal / mMeanSquareNoise; // power ratio
+            double signalToNoiseDB = 10.0 * log(signalToNoise);
+            if (signalToNoiseDB < MIN_SNR_DB) {
+                ALOGD("ERROR - signal to noise ratio is too low! < %d dB. Adjust volume.",
+                     MIN_SNR_DB);
+                setResult(ERROR_VOLUME_TOO_LOW);
+            }
+            return signalToNoiseDB;
+        }
+    }
+
+    std::string analyze() override {
+        std::stringstream report;
+        report << "GlitchAnalyzer ------------------\n";
+        report << LOOPBACK_RESULT_TAG "peak.amplitude     = " << std::setw(8)
+               << getPeakAmplitude() << "\n";
+        report << LOOPBACK_RESULT_TAG "sine.magnitude     = " << std::setw(8)
+               << mMagnitude << "\n";
+        report << LOOPBACK_RESULT_TAG "rms.noise          = " << std::setw(8)
+               << mMeanSquareNoise << "\n";
+        report << LOOPBACK_RESULT_TAG "signal.to.noise.db = " << std::setw(8)
+               << getSignalToNoiseDB() << "\n";
+        report << LOOPBACK_RESULT_TAG "frames.accumulated = " << std::setw(8)
+               << mFramesAccumulated << "\n";
+        report << LOOPBACK_RESULT_TAG "sine.period        = " << std::setw(8)
+               << mSinePeriod << "\n";
+        report << LOOPBACK_RESULT_TAG "test.state         = " << std::setw(8)
+               << mState << "\n";
+        report << LOOPBACK_RESULT_TAG "frame.count        = " << std::setw(8)
+               << mFrameCounter << "\n";
+        // Did we ever get a lock?
+        bool gotLock = (mState == STATE_LOCKED) || (mGlitchCount > 0);
+        if (!gotLock) {
+            report << "ERROR - failed to lock on reference sine tone.\n";
+            setResult(ERROR_NO_LOCK);
+        } else {
+            // Only print if meaningful.
+            report << LOOPBACK_RESULT_TAG "glitch.count       = " << std::setw(8)
+                   << mGlitchCount << "\n";
+            report << LOOPBACK_RESULT_TAG "max.glitch         = " << std::setw(8)
+                   << mMaxGlitchDelta << "\n";
+            if (mGlitchCount > 0) {
+                report << "ERROR - number of glitches > 0\n";
+                setResult(ERROR_GLITCHES);
+            }
+        }
+        return report.str();
+    }
+
+    void printStatus() override {
+        ALOGD("st = %d, #gl = %3d,", mState, mGlitchCount);
+    }
+    /**
+     * Calculate the magnitude of the component of the input signal
+     * that matches the analysis frequency.
+     * Also calculate the phase that we can use to create a
+     * signal that matches that component.
+     * The phase will be between -PI and +PI.
+     */
+    double calculateMagnitude(double *phasePtr = nullptr) {
+        if (mFramesAccumulated == 0) {
+            return 0.0;
+        }
+        double sinMean = mSinAccumulator / mFramesAccumulated;
+        double cosMean = mCosAccumulator / mFramesAccumulated;
+        double magnitude = 2.0 * sqrt((sinMean * sinMean) + (cosMean * cosMean));
+        if (phasePtr != nullptr) {
+            double phase = M_PI_2 - atan2(sinMean, cosMean);
+            *phasePtr = phase;
+        }
+        return magnitude;
+    }
+
+    /**
+     * @param frameData contains microphone data with sine signal feedback
+     * @param channelCount
+     */
+    result_code processInputFrame(float *frameData, int /* channelCount */) override {
+        result_code result = RESULT_OK;
+
+        float sample = frameData[0];
+        float peak = mPeakFollower.process(sample);
+
+        // Force a periodic glitch to test the detector!
+        if (mForceGlitchDuration > 0) {
+            if (mForceGlitchCounter == 0) {
+                ALOGE("%s: force a glitch!!", __func__);
+                mForceGlitchCounter = getSampleRate();
+            } else if (mForceGlitchCounter <= mForceGlitchDuration) {
+                // Force an abrupt offset.
+                sample += (sample > 0.0) ? -0.5f : 0.5f;
+            }
+            --mForceGlitchCounter;
+        }
+
+        mStateFrameCounters[mState]++; // count how many frames we are in each state
+
+        switch (mState) {
+            case STATE_IDLE:
+                mDownCounter--;
+                if (mDownCounter <= 0) {
+                    mState = STATE_IMMUNE;
+                    mDownCounter = IMMUNE_FRAME_COUNT;
+                    mInputPhase = 0.0; // prevent spike at start
+                    mOutputPhase = 0.0;
+                }
+                break;
+
+            case STATE_IMMUNE:
+                mDownCounter--;
+                if (mDownCounter <= 0) {
+                    mState = STATE_WAITING_FOR_SIGNAL;
+                }
+                break;
+
+            case STATE_WAITING_FOR_SIGNAL:
+                if (peak > mThreshold) {
+                    mState = STATE_WAITING_FOR_LOCK;
+                    //ALOGD("%5d: switch to STATE_WAITING_FOR_LOCK", mFrameCounter);
+                    resetAccumulator();
+                }
+                break;
+
+            case STATE_WAITING_FOR_LOCK:
+                mSinAccumulator += sample * sinf(mInputPhase);
+                mCosAccumulator += sample * cosf(mInputPhase);
+                mFramesAccumulated++;
+                // Must be a multiple of the period or the calculation will not be accurate.
+                if (mFramesAccumulated == mSinePeriod * PERIODS_NEEDED_FOR_LOCK) {
+                    double phaseOffset = 0.0;
+                    setMagnitude(calculateMagnitude(&phaseOffset));
+//                    ALOGD("%s() mag = %f, offset = %f, prev = %f",
+//                            __func__, mMagnitude, mPhaseOffset, mPreviousPhaseOffset);
+                    if (mMagnitude > mThreshold) {
+                        if (abs(phaseOffset) < kMaxPhaseError) {
+                            mState = STATE_LOCKED;
+//                            ALOGD("%5d: switch to STATE_LOCKED", mFrameCounter);
+                        }
+                        // Adjust mInputPhase to match measured phase
+                        mInputPhase += phaseOffset;
+                    }
+                    resetAccumulator();
+                }
+                incrementInputPhase();
+                break;
+
+            case STATE_LOCKED: {
+                // Predict next sine value
+                double predicted = sinf(mInputPhase) * mMagnitude;
+                double diff = predicted - sample;
+                double absDiff = fabs(diff);
+                mMaxGlitchDelta = std::max(mMaxGlitchDelta, absDiff);
+                if (absDiff > mScaledTolerance) {
+                    result = ERROR_GLITCHES;
+                    onGlitchStart();
+//                    LOGI("diff glitch detected, absDiff = %g", absDiff);
+                } else {
+                    mSumSquareSignal += predicted * predicted;
+                    mSumSquareNoise += diff * diff;
+                    // Track incoming signal and slowly adjust magnitude to account
+                    // for drift in the DRC or AGC.
+                    mSinAccumulator += sample * sinf(mInputPhase);
+                    mCosAccumulator += sample * cosf(mInputPhase);
+                    mFramesAccumulated++;
+                    // Must be a multiple of the period or the calculation will not be accurate.
+                    if (mFramesAccumulated == mSinePeriod) {
+                        const double coefficient = 0.1;
+                        double phaseOffset = 0.0;
+                        double magnitude = calculateMagnitude(&phaseOffset);
+                        // One pole averaging filter.
+                        setMagnitude((mMagnitude * (1.0 - coefficient)) + (magnitude * coefficient));
+
+                        mMeanSquareNoise = mSumSquareNoise * mInverseSinePeriod;
+                        mMeanSquareSignal = mSumSquareSignal * mInverseSinePeriod;
+                        resetAccumulator();
+
+                        if (abs(phaseOffset) > kMaxPhaseError) {
+                            result = ERROR_GLITCHES;
+                            onGlitchStart();
+                            ALOGD("phase glitch detected, phaseOffset = %g", phaseOffset);
+                        } else if (mMagnitude < mThreshold) {
+                            result = ERROR_GLITCHES;
+                            onGlitchStart();
+                            ALOGD("magnitude glitch detected, mMagnitude = %g", mMagnitude);
+                        }
+                    }
+                }
+                incrementInputPhase();
+            } break;
+
+            case STATE_GLITCHING: {
+                // Predict next sine value
+                mGlitchLength++;
+                double predicted = sinf(mInputPhase) * mMagnitude;
+                double diff = predicted - sample;
+                double absDiff = fabs(diff);
+                mMaxGlitchDelta = std::max(mMaxGlitchDelta, absDiff);
+                if (absDiff < mScaledTolerance) { // close enough?
+                    // If we get a full sine period of non-glitch samples in a row then consider the glitch over.
+                    // We don't want to just consider a zero crossing the end of a glitch.
+                    if (mNonGlitchCount++ > mSinePeriod) {
+                        onGlitchEnd();
+                    }
+                } else {
+                    mNonGlitchCount = 0;
+                    if (mGlitchLength > (4 * mSinePeriod)) {
+                        relock();
+                    }
+                }
+                incrementInputPhase();
+            } break;
+
+            case NUM_STATES: // not a real state
+                break;
+        }
+
+        mFrameCounter++;
+
+        return result;
+    }
+
+    // advance and wrap phase
+    void incrementInputPhase() {
+        mInputPhase += mPhaseIncrement;
+        if (mInputPhase > M_PI) {
+            mInputPhase -= (2.0 * M_PI);
+        }
+    }
+
+    // advance and wrap phase
+    void incrementOutputPhase() {
+        mOutputPhase += mPhaseIncrement;
+        if (mOutputPhase > M_PI) {
+            mOutputPhase -= (2.0 * M_PI);
+        }
+    }
+
+    /**
+     * @param frameData upon return, contains the reference sine wave
+     * @param channelCount
+     */
+    result_code processOutputFrame(float *frameData, int channelCount) override {
+        float output = 0.0f;
+        // Output sine wave so we can measure it.
+        if (mState != STATE_IDLE) {
+            float sinOut = sinf(mOutputPhase);
+            incrementOutputPhase();
+            output = (sinOut * mOutputAmplitude)
+                     + (mWhiteNoise.nextRandomDouble() * kNoiseAmplitude);
+            // ALOGD("sin(%f) = %f, %f\n", mOutputPhase, sinOut,  mPhaseIncrement);
+        }
+        frameData[0] = output;
+        for (int i = 1; i < channelCount; i++) {
+            frameData[i] = 0.0f;
+        }
+        return RESULT_OK;
+    }
+
+    void onGlitchStart() {
+        mGlitchCount++;
+//        ALOGD("%5d: STARTED a glitch # %d", mFrameCounter, mGlitchCount);
+        mState = STATE_GLITCHING;
+        mGlitchLength = 1;
+        mNonGlitchCount = 0;
+    }
+
+    void onGlitchEnd() {
+//        ALOGD("%5d: ENDED a glitch # %d, length = %d", mFrameCounter, mGlitchCount, mGlitchLength);
+        mState = STATE_LOCKED;
+        resetAccumulator();
+    }
+
+    // reset the sine wave detector
+    void resetAccumulator() {
+        mFramesAccumulated = 0;
+        mSinAccumulator = 0.0;
+        mCosAccumulator = 0.0;
+        mSumSquareSignal = 0.0;
+        mSumSquareNoise = 0.0;
+    }
+
+    void relock() {
+//        ALOGD("relock: %d because of a very long %d glitch", mFrameCounter, mGlitchLength);
+        mState = STATE_WAITING_FOR_LOCK;
+        resetAccumulator();
+    }
+
+    void reset() override {
+        LoopbackProcessor::reset();
+        mState = STATE_IDLE;
+        mDownCounter = IDLE_FRAME_COUNT;
+        resetAccumulator();
+    }
+
+    void prepareToTest() override {
+        LoopbackProcessor::prepareToTest();
+        mSinePeriod = getSampleRate() / kTargetGlitchFrequency;
+        mOutputPhase = 0.0f;
+        mInverseSinePeriod = 1.0 / mSinePeriod;
+        mPhaseIncrement = 2.0 * M_PI * mInverseSinePeriod;
+        mGlitchCount = 0;
+        mMaxGlitchDelta = 0.0;
+        for (int i = 0; i < NUM_STATES; i++) {
+            mStateFrameCounters[i] = 0;
+        }
+    }
+
+private:
+
+    // These must match the values in GlitchActivity.java
+    enum sine_state_t {
+        STATE_IDLE,               // beginning
+        STATE_IMMUNE,             // ignoring input, waiting fo HW to settle
+        STATE_WAITING_FOR_SIGNAL, // looking for a loud signal
+        STATE_WAITING_FOR_LOCK,   // trying to lock onto the phase of the sine
+        STATE_LOCKED,             // locked on the sine wave, looking for glitches
+        STATE_GLITCHING,           // locked on the sine wave but glitching
+        NUM_STATES
+    };
+
+    enum constants {
+        // Arbitrary durations, assuming 48000 Hz
+        IDLE_FRAME_COUNT = 48 * 100,
+        IMMUNE_FRAME_COUNT = 48 * 100,
+        PERIODS_NEEDED_FOR_LOCK = 8,
+        MIN_SNR_DB = 65
+    };
+
+    static constexpr float kNoiseAmplitude = 0.00; // Used to experiment with warbling caused by DRC.
+    static constexpr int kTargetGlitchFrequency = 607;
+    static constexpr double kMaxPhaseError = M_PI * 0.05;
+
+    float   mTolerance = 0.10; // scaled from 0.0 to 1.0
+    double  mThreshold = 0.005;
+    int     mSinePeriod = 1; // this will be set before use
+    double  mInverseSinePeriod = 1.0;
+
+    int32_t mStateFrameCounters[NUM_STATES];
+
+    double  mPhaseIncrement = 0.0;
+    double  mInputPhase = 0.0;
+    double  mOutputPhase = 0.0;
+    double  mMagnitude = 0.0;
+    int32_t mFramesAccumulated = 0;
+    double  mSinAccumulator = 0.0;
+    double  mCosAccumulator = 0.0;
+    double  mMaxGlitchDelta = 0.0;
+    int32_t mGlitchCount = 0;
+    int32_t mNonGlitchCount = 0;
+    int32_t mGlitchLength = 0;
+    // This is used for processing every frame so we cache it here.
+    double  mScaledTolerance = 0.0;
+    int     mDownCounter = IDLE_FRAME_COUNT;
+    int32_t mFrameCounter = 0;
+    double  mOutputAmplitude = 0.75;
+
+    int32_t mForceGlitchDuration = 0; // if > 0 then force a glitch for debugging
+    int32_t mForceGlitchCounter = 4 * 48000; // count down and trigger at zero
+
+    // measure background noise continuously as a deviation from the expected signal
+    double  mSumSquareSignal = 0.0;
+    double  mSumSquareNoise = 0.0;
+    double  mMeanSquareSignal = 0.0;
+    double  mMeanSquareNoise = 0.0;
+
+    PeakDetector  mPeakFollower;
+
+    PseudoRandom  mWhiteNoise;
+
+    sine_state_t  mState = STATE_IDLE;
+};
+
+
+#endif //ANALYZER_GLITCH_ANALYZER_H
diff --git a/media/libaaudio/examples/loopback/src/analyzer/LatencyAnalyzer.h b/media/libaaudio/examples/loopback/src/analyzer/LatencyAnalyzer.h
new file mode 100644
index 0000000..e506791
--- /dev/null
+++ b/media/libaaudio/examples/loopback/src/analyzer/LatencyAnalyzer.h
@@ -0,0 +1,606 @@
+/*
+ * 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.
+ */
+
+/**
+ * Tools for measuring latency and for detecting glitches.
+ * These classes are pure math and can be used with any audio system.
+ */
+
+#ifndef ANALYZER_LATENCY_ANALYZER_H
+#define ANALYZER_LATENCY_ANALYZER_H
+
+#include <algorithm>
+#include <assert.h>
+#include <cctype>
+#include <iomanip>
+#include <iostream>
+#include <math.h>
+#include <memory>
+#include <sstream>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <vector>
+
+#include "PeakDetector.h"
+#include "PseudoRandom.h"
+#include "RandomPulseGenerator.h"
+
+// This is used when the code is in Oboe.
+#ifndef ALOGD
+#define ALOGD printf
+#define ALOGE printf
+#define ALOGW printf
+#endif
+
+#define LOOPBACK_RESULT_TAG  "RESULT: "
+
+static constexpr int32_t kDefaultSampleRate = 48000;
+static constexpr int32_t kMillisPerSecond   = 1000;
+static constexpr int32_t kMaxLatencyMillis  = 700;  // arbitrary and generous
+static constexpr double  kMinimumConfidence = 0.2;
+
+struct LatencyReport {
+    int32_t latencyInFrames = 0.0;
+    double confidence = 0.0;
+
+    void reset() {
+        latencyInFrames = 0;
+        confidence = 0.0;
+    }
+};
+
+// Calculate a normalized cross correlation.
+static double calculateNormalizedCorrelation(const float *a,
+                                             const float *b,
+                                             int windowSize) {
+    double correlation = 0.0;
+    double sumProducts = 0.0;
+    double sumSquares = 0.0;
+
+    // Correlate a against b.
+    for (int i = 0; i < windowSize; i++) {
+        float s1 = a[i];
+        float s2 = b[i];
+        // Use a normalized cross-correlation.
+        sumProducts += s1 * s2;
+        sumSquares += ((s1 * s1) + (s2 * s2));
+    }
+
+    if (sumSquares >= 1.0e-9) {
+        correlation = 2.0 * sumProducts / sumSquares;
+    }
+    return correlation;
+}
+
+static double calculateRootMeanSquare(float *data, int32_t numSamples) {
+    double sum = 0.0;
+    for (int32_t i = 0; i < numSamples; i++) {
+        float sample = data[i];
+        sum += sample * sample;
+    }
+    return sqrt(sum / numSamples);
+}
+
+/**
+ * Monophonic recording with processing.
+ */
+class AudioRecording
+{
+public:
+
+    void allocate(int maxFrames) {
+        mData = std::make_unique<float[]>(maxFrames);
+        mMaxFrames = maxFrames;
+    }
+
+    // Write SHORT data from the first channel.
+    int32_t write(int16_t *inputData, int32_t inputChannelCount, int32_t numFrames) {
+        // stop at end of buffer
+        if ((mFrameCounter + numFrames) > mMaxFrames) {
+            numFrames = mMaxFrames - mFrameCounter;
+        }
+        for (int i = 0; i < numFrames; i++) {
+            mData[mFrameCounter++] = inputData[i * inputChannelCount] * (1.0f / 32768);
+        }
+        return numFrames;
+    }
+
+    // Write FLOAT data from the first channel.
+    int32_t write(float *inputData, int32_t inputChannelCount, int32_t numFrames) {
+        // stop at end of buffer
+        if ((mFrameCounter + numFrames) > mMaxFrames) {
+            numFrames = mMaxFrames - mFrameCounter;
+        }
+        for (int i = 0; i < numFrames; i++) {
+            mData[mFrameCounter++] = inputData[i * inputChannelCount];
+        }
+        return numFrames;
+    }
+
+    // Write FLOAT data from the first channel.
+    int32_t write(float sample) {
+        // stop at end of buffer
+        if (mFrameCounter < mMaxFrames) {
+            mData[mFrameCounter++] = sample;
+            return 1;
+        }
+        return 0;
+    }
+
+    void clear() {
+        mFrameCounter = 0;
+    }
+    int32_t size() const {
+        return mFrameCounter;
+    }
+
+    bool isFull() const {
+        return mFrameCounter >= mMaxFrames;
+    }
+
+    float *getData() const {
+        return mData.get();
+    }
+
+    void setSampleRate(int32_t sampleRate) {
+        mSampleRate = sampleRate;
+    }
+
+    int32_t getSampleRate() const {
+        return mSampleRate;
+    }
+
+    /**
+     * Square the samples so they are all positive and so the peaks are emphasized.
+     */
+    void square() {
+        float *x = mData.get();
+        for (int i = 0; i < mFrameCounter; i++) {
+            x[i] *= x[i];
+        }
+    }
+
+    /**
+     * Amplify a signal so that the peak matches the specified target.
+     *
+     * @param target final max value
+     * @return gain applied to signal
+     */
+    float normalize(float target) {
+        float maxValue = 1.0e-9f;
+        for (int i = 0; i < mFrameCounter; i++) {
+            maxValue = std::max(maxValue, abs(mData[i]));
+        }
+        float gain = target / maxValue;
+        for (int i = 0; i < mFrameCounter; i++) {
+            mData[i] *= gain;
+        }
+        return gain;
+    }
+
+private:
+    std::unique_ptr<float[]> mData;
+    int32_t       mFrameCounter = 0;
+    int32_t       mMaxFrames = 0;
+    int32_t       mSampleRate = kDefaultSampleRate; // common default
+};
+
+static int measureLatencyFromPulse(AudioRecording &recorded,
+                                   AudioRecording &pulse,
+                                   LatencyReport *report) {
+
+    report->latencyInFrames = 0;
+    report->confidence = 0.0;
+
+    int numCorrelations = recorded.size() - pulse.size();
+    if (numCorrelations < 10) {
+        ALOGE("%s() recording too small = %d frames\n", __func__, recorded.size());
+        return -1;
+    }
+    std::unique_ptr<float[]> correlations= std::make_unique<float[]>(numCorrelations);
+
+    // Correlate pulse against the recorded data.
+    for (int i = 0; i < numCorrelations; i++) {
+        float correlation = (float) calculateNormalizedCorrelation(&recorded.getData()[i],
+                                                                   &pulse.getData()[0],
+                                                                   pulse.size());
+        correlations[i] = correlation;
+    }
+
+    // Find highest peak in correlation array.
+    float peakCorrelation = 0.0;
+    int peakIndex = -1;
+    for (int i = 0; i < numCorrelations; i++) {
+        float value = abs(correlations[i]);
+        if (value > peakCorrelation) {
+            peakCorrelation = value;
+            peakIndex = i;
+        }
+    }
+    if (peakIndex < 0) {
+        ALOGE("%s() no signal for correlation\n", __func__);
+        return -2;
+    }
+
+    report->latencyInFrames = peakIndex;
+    report->confidence = peakCorrelation;
+
+    return 0;
+}
+
+// ====================================================================================
+class LoopbackProcessor {
+public:
+    virtual ~LoopbackProcessor() = default;
+
+    enum result_code {
+        RESULT_OK = 0,
+        ERROR_NOISY = -99,
+        ERROR_VOLUME_TOO_LOW,
+        ERROR_VOLUME_TOO_HIGH,
+        ERROR_CONFIDENCE,
+        ERROR_INVALID_STATE,
+        ERROR_GLITCHES,
+        ERROR_NO_LOCK
+    };
+
+    virtual void prepareToTest() {
+        reset();
+    }
+
+    virtual void reset() {
+        mResult = 0;
+        mResetCount++;
+    }
+
+    virtual result_code processInputFrame(float *frameData, int channelCount) = 0;
+    virtual result_code processOutputFrame(float *frameData, int channelCount) = 0;
+
+    void process(float *inputData, int inputChannelCount, int numInputFrames,
+                 float *outputData, int outputChannelCount, int numOutputFrames) {
+        int numBoth = std::min(numInputFrames, numOutputFrames);
+        // Process one frame at a time.
+        for (int i = 0; i < numBoth; i++) {
+            processInputFrame(inputData, inputChannelCount);
+            inputData += inputChannelCount;
+            processOutputFrame(outputData, outputChannelCount);
+            outputData += outputChannelCount;
+        }
+        // If there is more input than output.
+        for (int i = numBoth; i < numInputFrames; i++) {
+            processInputFrame(inputData, inputChannelCount);
+            inputData += inputChannelCount;
+        }
+        // If there is more output than input.
+        for (int i = numBoth; i < numOutputFrames; i++) {
+            processOutputFrame(outputData, outputChannelCount);
+            outputData += outputChannelCount;
+        }
+    }
+
+    virtual std::string analyze() = 0;
+
+    virtual void printStatus() {};
+
+    int32_t getResult() {
+        return mResult;
+    }
+
+    void setResult(int32_t result) {
+        mResult = result;
+    }
+
+    virtual bool isDone() {
+        return false;
+    }
+
+    virtual int save(const char *fileName) {
+        (void) fileName;
+        return -1;
+    }
+
+    virtual int load(const char *fileName) {
+        (void) fileName;
+        return -1;
+    }
+
+    virtual void setSampleRate(int32_t sampleRate) {
+        mSampleRate = sampleRate;
+    }
+
+    int32_t getSampleRate() const {
+        return mSampleRate;
+    }
+
+    int32_t getResetCount() const {
+        return mResetCount;
+    }
+
+    /** Called when not enough input frames could be read after synchronization.
+     */
+    virtual void onInsufficientRead() {
+        reset();
+    }
+
+protected:
+    int32_t   mResetCount = 0;
+
+private:
+    int32_t mSampleRate = kDefaultSampleRate;
+    int32_t mResult = 0;
+};
+
+class LatencyAnalyzer : public LoopbackProcessor {
+public:
+
+    LatencyAnalyzer() : LoopbackProcessor() {}
+    virtual ~LatencyAnalyzer() = default;
+
+    virtual int32_t getProgress() const = 0;
+
+    virtual int getState() = 0;
+
+    // @return latency in frames
+    virtual int32_t getMeasuredLatency() = 0;
+
+    virtual double getMeasuredConfidence() = 0;
+
+    virtual double getBackgroundRMS() = 0;
+
+    virtual double getSignalRMS() = 0;
+
+};
+
+// ====================================================================================
+/**
+ * Measure latency given a loopback stream data.
+ * Use an encoded bit train as the sound source because it
+ * has an unambiguous correlation value.
+ * Uses a state machine to cycle through various stages.
+ *
+ */
+class PulseLatencyAnalyzer : public LatencyAnalyzer {
+public:
+
+    PulseLatencyAnalyzer() : LatencyAnalyzer() {
+        int32_t maxLatencyFrames = getSampleRate() * kMaxLatencyMillis / kMillisPerSecond;
+        int32_t numPulseBits = getSampleRate() * kPulseLengthMillis
+                / (kFramesPerEncodedBit * kMillisPerSecond);
+        int32_t  pulseLength = numPulseBits * kFramesPerEncodedBit;
+        mFramesToRecord = pulseLength + maxLatencyFrames;
+        mAudioRecording.allocate(mFramesToRecord);
+        mAudioRecording.setSampleRate(getSampleRate());
+        generateRandomPulse(pulseLength);
+    }
+
+    void generateRandomPulse(int32_t pulseLength) {
+        mPulse.allocate(pulseLength);
+        RandomPulseGenerator pulser(kFramesPerEncodedBit);
+        for (int i = 0; i < pulseLength; i++) {
+            mPulse.write(pulser.nextFloat());
+        }
+    }
+
+    int getState() override {
+        return mState;
+    }
+
+    void setSampleRate(int32_t sampleRate) override {
+        LoopbackProcessor::setSampleRate(sampleRate);
+        mAudioRecording.setSampleRate(sampleRate);
+    }
+
+    void reset() override {
+        LoopbackProcessor::reset();
+        mDownCounter = getSampleRate() / 2;
+        mLoopCounter = 0;
+
+        mPulseCursor = 0;
+        mBackgroundSumSquare = 0.0f;
+        mBackgroundSumCount = 0;
+        mBackgroundRMS = 0.0f;
+        mSignalRMS = 0.0f;
+
+        mState = STATE_MEASURE_BACKGROUND;
+        mAudioRecording.clear();
+        mLatencyReport.reset();
+    }
+
+    bool hasEnoughData() {
+        return mAudioRecording.isFull();
+    }
+
+    bool isDone() override {
+        return mState == STATE_DONE;
+    }
+
+    int32_t getProgress() const override {
+        return mAudioRecording.size();
+    }
+
+    std::string analyze() override {
+        std::stringstream report;
+        report << "PulseLatencyAnalyzer ---------------\n";
+        report << LOOPBACK_RESULT_TAG "test.state             = "
+                << std::setw(8) << mState << "\n";
+        report << LOOPBACK_RESULT_TAG "test.state.name        = "
+                << convertStateToText(mState) << "\n";
+        report << LOOPBACK_RESULT_TAG "background.rms         = "
+                << std::setw(8) << mBackgroundRMS << "\n";
+
+        int32_t newResult = RESULT_OK;
+        if (mState != STATE_GOT_DATA) {
+            report << "WARNING - Bad state. Check volume on device.\n";
+            // setResult(ERROR_INVALID_STATE);
+        } else {
+            float gain = mAudioRecording.normalize(1.0f);
+            measureLatencyFromPulse(mAudioRecording,
+                                    mPulse,
+                                    &mLatencyReport);
+
+            if (mLatencyReport.confidence < kMinimumConfidence) {
+                report << "   ERROR - confidence too low!";
+                newResult = ERROR_CONFIDENCE;
+            } else {
+                mSignalRMS = calculateRootMeanSquare(
+                        &mAudioRecording.getData()[mLatencyReport.latencyInFrames], mPulse.size())
+                                / gain;
+            }
+            double latencyMillis = kMillisPerSecond * (double) mLatencyReport.latencyInFrames
+                                   / getSampleRate();
+            report << LOOPBACK_RESULT_TAG "latency.frames         = " << std::setw(8)
+                   << mLatencyReport.latencyInFrames << "\n";
+            report << LOOPBACK_RESULT_TAG "latency.msec           = " << std::setw(8)
+                   << latencyMillis << "\n";
+            report << LOOPBACK_RESULT_TAG "latency.confidence     = " << std::setw(8)
+                   << mLatencyReport.confidence << "\n";
+        }
+        mState = STATE_DONE;
+        if (getResult() == RESULT_OK) {
+            setResult(newResult);
+        }
+
+        return report.str();
+    }
+
+    int32_t getMeasuredLatency() override {
+        return mLatencyReport.latencyInFrames;
+    }
+
+    double getMeasuredConfidence() override {
+        return mLatencyReport.confidence;
+    }
+
+    double getBackgroundRMS() override {
+        return mBackgroundRMS;
+    }
+
+    double getSignalRMS() override {
+        return mSignalRMS;
+    }
+
+    void printStatus() override {
+        ALOGD("st = %d", mState);
+    }
+
+    result_code processInputFrame(float *frameData, int channelCount) override {
+        echo_state nextState = mState;
+        mLoopCounter++;
+
+        switch (mState) {
+            case STATE_MEASURE_BACKGROUND:
+                // Measure background RMS on channel 0
+                mBackgroundSumSquare += frameData[0] * frameData[0];
+                mBackgroundSumCount++;
+                mDownCounter--;
+                if (mDownCounter <= 0) {
+                    mBackgroundRMS = sqrtf(mBackgroundSumSquare / mBackgroundSumCount);
+                    nextState = STATE_IN_PULSE;
+                    mPulseCursor = 0;
+                }
+                break;
+
+            case STATE_IN_PULSE:
+                // Record input until the mAudioRecording is full.
+                mAudioRecording.write(frameData, channelCount, 1);
+                if (hasEnoughData()) {
+                    nextState = STATE_GOT_DATA;
+                }
+                break;
+
+            case STATE_GOT_DATA:
+            case STATE_DONE:
+            default:
+                break;
+        }
+
+        mState = nextState;
+        return RESULT_OK;
+    }
+
+    result_code processOutputFrame(float *frameData, int channelCount) override {
+        switch (mState) {
+            case STATE_IN_PULSE:
+                if (mPulseCursor < mPulse.size()) {
+                    float pulseSample = mPulse.getData()[mPulseCursor++];
+                    for (int i = 0; i < channelCount; i++) {
+                        frameData[i] = pulseSample;
+                    }
+                } else {
+                    for (int i = 0; i < channelCount; i++) {
+                        frameData[i] = 0;
+                    }
+                }
+                break;
+
+            case STATE_MEASURE_BACKGROUND:
+            case STATE_GOT_DATA:
+            case STATE_DONE:
+            default:
+                for (int i = 0; i < channelCount; i++) {
+                    frameData[i] = 0.0f; // silence
+                }
+                break;
+        }
+
+        return RESULT_OK;
+    }
+
+private:
+
+    enum echo_state {
+        STATE_MEASURE_BACKGROUND,
+        STATE_IN_PULSE,
+        STATE_GOT_DATA, // must match RoundTripLatencyActivity.java
+        STATE_DONE,
+    };
+
+    const char *convertStateToText(echo_state state) {
+        switch (state) {
+            case STATE_MEASURE_BACKGROUND:
+                return "INIT";
+            case STATE_IN_PULSE:
+                return "PULSE";
+            case STATE_GOT_DATA:
+                return "GOT_DATA";
+            case STATE_DONE:
+                return "DONE";
+        }
+        return "UNKNOWN";
+    }
+
+    int32_t         mDownCounter = 500;
+    int32_t         mLoopCounter = 0;
+    echo_state      mState = STATE_MEASURE_BACKGROUND;
+
+    static constexpr int32_t kFramesPerEncodedBit = 8; // multiple of 2
+    static constexpr int32_t kPulseLengthMillis = 500;
+
+    AudioRecording     mPulse;
+    int32_t            mPulseCursor = 0;
+
+    double             mBackgroundSumSquare = 0.0;
+    int32_t            mBackgroundSumCount = 0;
+    double             mBackgroundRMS = 0.0;
+    double             mSignalRMS = 0.0;
+    int32_t            mFramesToRecord = 0;
+
+    AudioRecording     mAudioRecording; // contains only the input after starting the pulse
+    LatencyReport      mLatencyReport;
+};
+
+#endif // ANALYZER_LATENCY_ANALYZER_H
diff --git a/media/libaaudio/examples/loopback/src/analyzer/ManchesterEncoder.h b/media/libaaudio/examples/loopback/src/analyzer/ManchesterEncoder.h
new file mode 100644
index 0000000..0a4bd5b
--- /dev/null
+++ b/media/libaaudio/examples/loopback/src/analyzer/ManchesterEncoder.h
@@ -0,0 +1,98 @@
+/*
+ * Copyright 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANALYZER_MANCHESTER_ENCODER_H
+#define ANALYZER_MANCHESTER_ENCODER_H
+
+#include <cstdint>
+
+/**
+ * Encode bytes using Manchester Coding scheme.
+ *
+ * Manchester Code is self clocking.
+ * There is a transition in the middle of every bit.
+ * Zero is high then low.
+ * One is low then high.
+ *
+ * This avoids having long DC sections that would droop when
+ * passed though analog circuits with AC coupling.
+ *
+ * IEEE 802.3 compatible.
+ */
+
+class ManchesterEncoder {
+public:
+    ManchesterEncoder(int samplesPerPulse)
+            : mSamplesPerPulse(samplesPerPulse)
+            , mSamplesPerPulseHalf(samplesPerPulse / 2)
+            , mCursor(samplesPerPulse) {
+    }
+
+    virtual ~ManchesterEncoder() = default;
+
+    /**
+     * This will be called when the next byte is needed.
+     * @return
+     */
+    virtual uint8_t onNextByte() = 0;
+
+    /**
+     * Generate the next floating point sample.
+     * @return
+     */
+    virtual float nextFloat() {
+        advanceSample();
+        if (mCurrentBit) {
+            return (mCursor < mSamplesPerPulseHalf) ? -1.0f : 1.0f; // one
+        } else {
+            return (mCursor < mSamplesPerPulseHalf) ? 1.0f : -1.0f; // zero
+        }
+    }
+
+protected:
+    /**
+     * This will be called when a new bit is ready to be encoded.
+     * It can be used to prepare the encoded samples.
+     * @param current
+     */
+    virtual void onNextBit(bool /* current */) {};
+
+    void advanceSample() {
+        // Are we ready for a new bit?
+        if (++mCursor >= mSamplesPerPulse) {
+            mCursor = 0;
+            if (mBitsLeft == 0) {
+                mCurrentByte = onNextByte();
+                mBitsLeft = 8;
+            }
+            --mBitsLeft;
+            mCurrentBit = (mCurrentByte >> mBitsLeft) & 1;
+            onNextBit(mCurrentBit);
+        }
+    }
+
+    bool getCurrentBit() {
+        return mCurrentBit;
+    }
+
+    const int mSamplesPerPulse;
+    const int mSamplesPerPulseHalf;
+    int       mCursor;
+    int       mBitsLeft = 0;
+    uint8_t   mCurrentByte = 0;
+    bool      mCurrentBit = false;
+};
+#endif //ANALYZER_MANCHESTER_ENCODER_H
diff --git a/media/libaaudio/examples/loopback/src/analyzer/PeakDetector.h b/media/libaaudio/examples/loopback/src/analyzer/PeakDetector.h
new file mode 100644
index 0000000..4b3b4e7
--- /dev/null
+++ b/media/libaaudio/examples/loopback/src/analyzer/PeakDetector.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 ANALYZER_PEAK_DETECTOR_H
+#define ANALYZER_PEAK_DETECTOR_H
+
+#include <math.h>
+
+/**
+ * Measure a peak envelope by rising with the peaks,
+ * and decaying exponentially after each peak.
+ * The absolute value of the input signal is used.
+ */
+class PeakDetector {
+public:
+
+    void reset() {
+        mLevel = 0.0;
+    }
+
+    double process(double input) {
+        mLevel *= mDecay; // exponential decay
+        input = fabs(input);
+        // never fall below the input signal
+        if (input > mLevel) {
+            mLevel = input;
+        }
+        return mLevel;
+    }
+
+    double getLevel() const {
+        return mLevel;
+    }
+
+    double getDecay() const {
+        return mDecay;
+    }
+
+    /**
+     * Multiply the level by this amount on every iteration.
+     * This provides an exponential decay curve.
+     * A value just under 1.0 is best, for example, 0.99;
+     * @param decay scale level for each input
+     */
+    void setDecay(double decay) {
+        mDecay = decay;
+    }
+
+private:
+    static constexpr double kDefaultDecay = 0.99f;
+
+    double mLevel = 0.0;
+    double mDecay = kDefaultDecay;
+};
+#endif //ANALYZER_PEAK_DETECTOR_H
diff --git a/media/libaaudio/examples/loopback/src/analyzer/PseudoRandom.h b/media/libaaudio/examples/loopback/src/analyzer/PseudoRandom.h
new file mode 100644
index 0000000..1c4938c
--- /dev/null
+++ b/media/libaaudio/examples/loopback/src/analyzer/PseudoRandom.h
@@ -0,0 +1,57 @@
+/*
+ * 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 ANALYZER_PSEUDORANDOM_H
+#define ANALYZER_PSEUDORANDOM_H
+
+#include <cctype>
+
+class PseudoRandom {
+public:
+    PseudoRandom(int64_t seed = 99887766)
+            :    mSeed(seed)
+    {}
+
+    /**
+     * Returns the next random double from -1.0 to 1.0
+     *
+     * @return value from -1.0 to 1.0
+     */
+    double nextRandomDouble() {
+        return nextRandomInteger() * (0.5 / (((int32_t)1) << 30));
+    }
+
+    /** Calculate random 32 bit number using linear-congruential method
+     * with known real-time performance.
+     */
+    int32_t nextRandomInteger() {
+#if __has_builtin(__builtin_mul_overflow) && __has_builtin(__builtin_add_overflow)
+        int64_t prod;
+        // Use values for 64-bit sequence from MMIX by Donald Knuth.
+        __builtin_mul_overflow(mSeed, (int64_t)6364136223846793005, &prod);
+        __builtin_add_overflow(prod, (int64_t)1442695040888963407, &mSeed);
+#else
+        mSeed = (mSeed * (int64_t)6364136223846793005) + (int64_t)1442695040888963407;
+#endif
+        return (int32_t) (mSeed >> 32); // The higher bits have a longer sequence.
+    }
+
+private:
+    int64_t mSeed;
+};
+
+#endif //ANALYZER_PSEUDORANDOM_H
diff --git a/media/libaaudio/examples/loopback/src/analyzer/RandomPulseGenerator.h b/media/libaaudio/examples/loopback/src/analyzer/RandomPulseGenerator.h
new file mode 100644
index 0000000..030050b
--- /dev/null
+++ b/media/libaaudio/examples/loopback/src/analyzer/RandomPulseGenerator.h
@@ -0,0 +1,43 @@
+/*
+ * 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 ANALYZER_RANDOM_PULSE_GENERATOR_H
+#define ANALYZER_RANDOM_PULSE_GENERATOR_H
+
+#include <stdlib.h>
+#include "RoundedManchesterEncoder.h"
+
+/**
+ * Encode random ones and zeros using Manchester Code per IEEE 802.3.
+ */
+class RandomPulseGenerator : public RoundedManchesterEncoder {
+public:
+    RandomPulseGenerator(int samplesPerPulse)
+    : RoundedManchesterEncoder(samplesPerPulse) {
+    }
+
+    virtual ~RandomPulseGenerator() = default;
+
+    /**
+     * This will be called when the next byte is needed.
+     * @return random byte
+     */
+    uint8_t onNextByte() override {
+        return static_cast<uint8_t>(rand());
+    }
+};
+
+#endif //ANALYZER_RANDOM_PULSE_GENERATOR_H
diff --git a/media/libaaudio/examples/loopback/src/analyzer/RoundedManchesterEncoder.h b/media/libaaudio/examples/loopback/src/analyzer/RoundedManchesterEncoder.h
new file mode 100644
index 0000000..f2eba84
--- /dev/null
+++ b/media/libaaudio/examples/loopback/src/analyzer/RoundedManchesterEncoder.h
@@ -0,0 +1,88 @@
+/*
+ * Copyright 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANALYZER_ROUNDED_MANCHESTER_ENCODER_H
+#define ANALYZER_ROUNDED_MANCHESTER_ENCODER_H
+
+#include <math.h>
+#include <memory.h>
+#include <stdlib.h>
+#include "ManchesterEncoder.h"
+
+/**
+ * Encode bytes using Manchester Code.
+ * Round the edges using a half cosine to reduce ringing caused by a hard edge.
+ */
+
+class RoundedManchesterEncoder : public ManchesterEncoder {
+public:
+    RoundedManchesterEncoder(int samplesPerPulse)
+            : ManchesterEncoder(samplesPerPulse) {
+        int rampSize = samplesPerPulse / 4;
+        mZeroAfterZero = std::make_unique<float[]>(samplesPerPulse);
+        mZeroAfterOne = std::make_unique<float[]>(samplesPerPulse);
+
+        int sampleIndex = 0;
+        for (int rampIndex = 0; rampIndex < rampSize; rampIndex++) {
+            float phase = (rampIndex + 1) * M_PI / rampSize;
+            float sample = -cosf(phase);
+            mZeroAfterZero[sampleIndex] = sample;
+            mZeroAfterOne[sampleIndex] = 1.0f;
+            sampleIndex++;
+        }
+        for (int rampIndex = 0; rampIndex < rampSize; rampIndex++) {
+            mZeroAfterZero[sampleIndex] = 1.0f;
+            mZeroAfterOne[sampleIndex] = 1.0f;
+            sampleIndex++;
+        }
+        for (int rampIndex = 0; rampIndex < rampSize; rampIndex++) {
+            float phase = (rampIndex + 1) * M_PI / rampSize;
+            float sample = cosf(phase);
+            mZeroAfterZero[sampleIndex] = sample;
+            mZeroAfterOne[sampleIndex] = sample;
+            sampleIndex++;
+        }
+        for (int rampIndex = 0; rampIndex < rampSize; rampIndex++) {
+            mZeroAfterZero[sampleIndex] = -1.0f;
+            mZeroAfterOne[sampleIndex] = -1.0f;
+            sampleIndex++;
+        }
+    }
+
+    void onNextBit(bool current) override {
+        // Do we need to use the rounded edge?
+        mCurrentSamples = (current ^ mPreviousBit)
+                          ? mZeroAfterOne.get()
+                          : mZeroAfterZero.get();
+        mPreviousBit = current;
+    }
+
+    float nextFloat() override {
+        advanceSample();
+        float output = mCurrentSamples[mCursor];
+        if (getCurrentBit()) output = -output;
+        return output;
+    }
+
+private:
+
+    bool mPreviousBit = false;
+    float *mCurrentSamples = nullptr;
+    std::unique_ptr<float[]> mZeroAfterZero;
+    std::unique_ptr<float[]> mZeroAfterOne;
+};
+
+#endif //ANALYZER_ROUNDED_MANCHESTER_ENCODER_H
diff --git a/media/libaaudio/examples/loopback/src/loopback.cpp b/media/libaaudio/examples/loopback/src/loopback.cpp
index 49d921f..0d2ec70 100644
--- a/media/libaaudio/examples/loopback/src/loopback.cpp
+++ b/media/libaaudio/examples/loopback/src/loopback.cpp
@@ -20,6 +20,8 @@
 #include <assert.h>
 #include <cctype>
 #include <errno.h>
+#include <iomanip>
+#include <iostream>
 #include <math.h>
 #include <stdio.h>
 #include <stdlib.h>
@@ -33,7 +35,9 @@
 #include "AAudioSimplePlayer.h"
 #include "AAudioSimpleRecorder.h"
 #include "AAudioExampleUtils.h"
-#include "LoopbackAnalyzer.h"
+
+#include "analyzer/GlitchAnalyzer.h"
+#include "analyzer/LatencyAnalyzer.h"
 #include "../../utils/AAudioExampleUtils.h"
 
 // V0.4.00 = rectify and low-pass filter the echos, auto-correlate entire echo
@@ -41,7 +45,8 @@
 //           fix -n option to set output buffer for -tm
 //           plot first glitch
 // V0.4.02 = allow -n0 for minimal buffer size
-#define APP_VERSION             "0.4.02"
+// V0.5.00 = use latency analyzer from OboeTester, uses random noise for latency
+#define APP_VERSION             "0.5.00"
 
 // Tag for machine readable results as property = value pairs
 #define RESULT_TAG              "RESULT: "
@@ -57,6 +62,20 @@
 constexpr int kDefaultHangTimeMillis = 50;
 constexpr int kMaxGlitchEventsToSave = 32;
 
+static void printAudioScope(float sample) {
+    const int maxStars = 80; // arbitrary, fits on one line
+    char c = '*';
+    if (sample < -1.0) {
+        sample = -1.0;
+        c = '$';
+    } else if (sample > 1.0) {
+        sample = 1.0;
+        c = '$';
+    }
+    int numSpaces = (int) (((sample + 1.0) * 0.5) * maxStars);
+    printf("%*c%c\n", numSpaces, ' ', c);
+}
+
 struct LoopbackData {
     AAudioStream      *inputStream = nullptr;
     AAudioStream      *outputStream = nullptr;
@@ -83,8 +102,8 @@
     aaudio_result_t    inputError = AAUDIO_OK;
     aaudio_result_t    outputError = AAUDIO_OK;
 
-    SineAnalyzer       sineAnalyzer;
-    EchoAnalyzer       echoAnalyzer;
+    GlitchAnalyzer     sineAnalyzer;
+    PulseLatencyAnalyzer echoAnalyzer;
     AudioRecording     audioRecording;
     LoopbackProcessor *loopbackProcessor;
 
@@ -254,17 +273,18 @@
             }
 
             // Analyze the data.
-            LoopbackProcessor::process_result procResult = myData->loopbackProcessor->process(myData->inputFloatData,
+            myData->loopbackProcessor->process(myData->inputFloatData,
                                                myData->actualInputChannelCount,
+                                               numFrames,
                                                outputData,
                                                myData->actualOutputChannelCount,
                                                numFrames);
-
-            if (procResult == LoopbackProcessor::PROCESS_RESULT_GLITCH) {
-                if (myData->numGlitchEvents < kMaxGlitchEventsToSave) {
-                    myData->glitchFrames[myData->numGlitchEvents++] = myData->audioRecording.size();
-                }
-            }
+//
+//            if (procResult == LoopbackProcessor::PROCESS_RESULT_GLITCH) {
+//                if (myData->numGlitchEvents < kMaxGlitchEventsToSave) {
+//                    myData->glitchFrames[myData->numGlitchEvents++] = myData->audioRecording.size();
+//                }
+//            }
 
             // Save for later.
             myData->audioRecording.write(myData->inputFloatData,
@@ -283,8 +303,8 @@
 }
 
 static void MyErrorCallbackProc(
-        AAudioStream *stream __unused,
-        void *userData __unused,
+        AAudioStream * /* stream */,
+        void * userData,
         aaudio_result_t error) {
     printf("Error Callback, error: %d\n",(int)error);
     LoopbackData *myData = (LoopbackData *) userData;
@@ -305,8 +325,8 @@
     printf("          l for _LATENCY\n");
     printf("          p for _POWER_SAVING\n");
     printf("      -t{test}          select test mode\n");
-    printf("          m for sine magnitude\n");
-    printf("          e for echo latency (default)\n");
+    printf("          g for Glitch detection\n");
+    printf("          l for round trip Latency (default)\n");
     printf("          f for file latency, analyzes %s\n\n", FILENAME_ECHOS);
     printf("      -X  use EXCLUSIVE mode for input\n");
     printf("Example:  aaudio_loopback -n2 -pl -Pl -x\n");
@@ -333,20 +353,22 @@
 }
 
 enum {
-    TEST_SINE_MAGNITUDE = 0,
-    TEST_ECHO_LATENCY,
+    TEST_GLITCHES = 0,
+    TEST_LATENCY,
     TEST_FILE_LATENCY,
 };
 
 static int parseTestMode(char c) {
-    int testMode = TEST_ECHO_LATENCY;
+    int testMode = TEST_LATENCY;
     c = tolower(c);
     switch (c) {
-        case 'm':
-            testMode = TEST_SINE_MAGNITUDE;
+        case 'm': // deprecated
+        case 'g':
+            testMode = TEST_GLITCHES;
             break;
-        case 'e':
-            testMode = TEST_ECHO_LATENCY;
+        case 'e': // deprecated
+        case 'l':
+            testMode = TEST_LATENCY;
             break;
         case 'f':
             testMode = TEST_FILE_LATENCY;
@@ -408,9 +430,10 @@
     int32_t               actualSampleRate           = 0;
     int                   written                    = 0;
 
-    int                   testMode                   = TEST_ECHO_LATENCY;
+    int                   testMode                   = TEST_LATENCY;
     double                gain                       = 1.0;
     int                   hangTimeMillis             = 0;
+    std::string           report;
 
     // Make printf print immediately so that debug info is not stuck
     // in a buffer if we hang or crash.
@@ -488,22 +511,21 @@
     int32_t requestedOutputBursts = argParser.getNumberOfBursts();
 
     switch(testMode) {
-        case TEST_SINE_MAGNITUDE:
+        case TEST_GLITCHES:
             loopbackData.loopbackProcessor = &loopbackData.sineAnalyzer;
             break;
-        case TEST_ECHO_LATENCY:
-            loopbackData.echoAnalyzer.setGain(gain);
+        case TEST_LATENCY:
+            // TODO loopbackData.echoAnalyzer.setGain(gain);
             loopbackData.loopbackProcessor = &loopbackData.echoAnalyzer;
             break;
         case TEST_FILE_LATENCY: {
-            loopbackData.echoAnalyzer.setGain(gain);
-
+            // TODO loopbackData.echoAnalyzer.setGain(gain);
             loopbackData.loopbackProcessor = &loopbackData.echoAnalyzer;
             int read = loopbackData.loopbackProcessor->load(FILENAME_ECHOS);
             printf("main() read %d mono samples from %s on Android device, rate = %d\n",
                    read, FILENAME_ECHOS,
                    loopbackData.loopbackProcessor->getSampleRate());
-            loopbackData.loopbackProcessor->report();
+            std::cout << loopbackData.loopbackProcessor->analyze();
             goto report_result;
         }
             break;
@@ -557,7 +579,7 @@
         int32_t actualCapacity = AAudioStream_getBufferCapacityInFrames(inputStream);
         (void) AAudioStream_setBufferSizeInFrames(inputStream, actualCapacity);
 
-        if (testMode == TEST_SINE_MAGNITUDE
+        if (testMode == TEST_GLITCHES
                 && requestedOutputBursts == AAUDIO_UNSPECIFIED) {
             result = AAudioStream_setBufferSizeInFrames(outputStream, actualCapacity);
             if (result < 0) {
@@ -594,10 +616,10 @@
     loopbackData.inputFloatData = new float[loopbackData.inputFramesMaximum *
                                               loopbackData.actualInputChannelCount]{};
 
-    loopbackData.loopbackProcessor->reset();
-
     loopbackData.hangTimeMillis = hangTimeMillis;
 
+    loopbackData.loopbackProcessor->prepareToTest();
+
     // Start OUTPUT first so INPUT does not overflow.
     result = player.start();
     if (result != AAUDIO_OK) {
@@ -669,7 +691,8 @@
 
     printf("input error = %d = %s\n",
            loopbackData.inputError, AAudio_convertResultToText(loopbackData.inputError));
-
+/*
+    // TODO Restore this code some day if we want to save files.
     written = loopbackData.loopbackProcessor->save(FILENAME_ECHOS);
     if (written > 0) {
         printf("main() wrote %8d mono samples to \"%s\" on Android device\n",
@@ -681,9 +704,9 @@
         printf("main() wrote %8d mono samples to \"%s\" on Android device\n",
                written, FILENAME_ALL);
     }
-
+*/
     if (loopbackData.inputError == AAUDIO_OK) {
-        if (testMode == TEST_SINE_MAGNITUDE) {
+        if (testMode == TEST_GLITCHES) {
             if (loopbackData.numGlitchEvents > 0) {
                 // Graph around the first glitch if there is one.
                 const int32_t start = loopbackData.glitchFrames[0] - 8;
@@ -697,7 +720,8 @@
             }
         }
 
-        loopbackData.loopbackProcessor->report();
+        std::cout << "Please wait several seconds for analysis to complete.\n";
+        std::cout << loopbackData.loopbackProcessor->analyze();
     }
 
     {
diff --git a/media/libaaudio/examples/utils/AAudioArgsParser.h b/media/libaaudio/examples/utils/AAudioArgsParser.h
index 9115778..4bba436 100644
--- a/media/libaaudio/examples/utils/AAudioArgsParser.h
+++ b/media/libaaudio/examples/utils/AAudioArgsParser.h
@@ -38,12 +38,15 @@
                                 aaudio_input_preset_t inputPreset) = nullptr;
 static void (*s_setAllowedCapturePolicy)(AAudioStreamBuilder* builder,
                                           aaudio_allowed_capture_policy_t usage) = nullptr;
+static void (*s_setPrivacySensitive)(AAudioStreamBuilder* builder,
+                                          bool privacySensitive) = nullptr;
 
 static bool s_loadAttempted = false;
 static aaudio_usage_t (*s_getUsage)(AAudioStream *stream) = nullptr;
 static aaudio_content_type_t (*s_getContentType)(AAudioStream *stream) = nullptr;
 static aaudio_input_preset_t (*s_getInputPreset)(AAudioStream *stream) = nullptr;
 static aaudio_allowed_capture_policy_t (*s_getAllowedCapturePolicy)(AAudioStream *stream) = nullptr;
+static bool (*s_isPrivacySensitive)(AAudioStream *stream) = nullptr;
 
 // Link to test functions in shared library.
 static void loadFutureFunctions() {
@@ -68,6 +71,10 @@
                 dlsym(handle, "AAudioStreamBuilder_setAllowedCapturePolicy");
         if (s_setAllowedCapturePolicy == nullptr) goto error;
 
+        s_setPrivacySensitive = (void (*)(AAudioStreamBuilder *, bool))
+                dlsym(handle, "AAudioStreamBuilder_setPrivacySensitive");
+        if (s_setPrivacySensitive == nullptr) goto error;
+
         s_getUsage = (aaudio_usage_t (*)(AAudioStream *))
                 dlsym(handle, "AAudioStream_getUsage");
         if (s_getUsage == nullptr) goto error;
@@ -83,6 +90,10 @@
         s_getAllowedCapturePolicy = (aaudio_input_preset_t (*)(AAudioStream *))
                 dlsym(handle, "AAudioStream_getAllowedCapturePolicy");
         if (s_getAllowedCapturePolicy == nullptr) goto error;
+
+        s_isPrivacySensitive = (bool (*)(AAudioStream *))
+                dlsym(handle, "AAudioStream_isPrivacySensitive");
+        if (s_isPrivacySensitive == nullptr) goto error;
     }
     return;
 
@@ -91,9 +102,11 @@
     s_setUsage = nullptr;
     s_setContentType = nullptr;
     s_setInputPreset = nullptr;
+    s_setPrivacySensitive = nullptr;
     s_getUsage = nullptr;
     s_getContentType = nullptr;
     s_getInputPreset = nullptr;
+    s_isPrivacySensitive = nullptr;
     dlclose(handle);
     return;
 }
@@ -211,6 +224,14 @@
         mFramesPerCallback = size;
     }
 
+    int32_t isPrivacySensitive() const {
+        return mPrivacySensitive;
+    }
+
+    void setPrivacySensitive(int32_t privacySensitive) {
+        mPrivacySensitive = privacySensitive;
+    }
+
     /**
      * Apply these parameters to a stream builder.
      * @param builder
@@ -234,12 +255,12 @@
         }
         if (s_setContentType != nullptr) {
             s_setContentType(builder, mContentType);
-        } else if (mUsage != AAUDIO_UNSPECIFIED){
+        } else if (mContentType != AAUDIO_UNSPECIFIED){
             printf("WARNING: setContentType not supported");
         }
         if (s_setInputPreset != nullptr) {
             s_setInputPreset(builder, mInputPreset);
-        } else if (mUsage != AAUDIO_UNSPECIFIED){
+        } else if (mInputPreset != AAUDIO_UNSPECIFIED){
             printf("WARNING: setInputPreset not supported");
         }
 
@@ -249,6 +270,15 @@
         } else if (mAllowedCapturePolicy != AAUDIO_UNSPECIFIED){
             printf("WARNING: setAllowedCapturePolicy not supported");
         }
+
+        if (mPrivacySensitive != PRIVACY_SENSITIVE_DEFAULT) {
+            if (s_setPrivacySensitive != nullptr) {
+                s_setPrivacySensitive(builder,
+                    mPrivacySensitive == PRIVACY_SENSITIVE_ENABLED);
+            } else {
+                printf("WARNING: setPrivacySensitive not supported");
+            }
+        }
     }
 
     static constexpr int32_t   kDefaultNumberOfBursts = 2;
@@ -270,6 +300,13 @@
 
     int32_t                    mNumberOfBursts  = kDefaultNumberOfBursts;
     int32_t                    mFramesPerCallback = AAUDIO_UNSPECIFIED;
+
+    enum {
+        PRIVACY_SENSITIVE_DEFAULT = -1,
+        PRIVACY_SENSITIVE_DISABLED = 0,
+        PRIVACY_SENSITIVE_ENABLED = 1,
+    };
+    int32_t                    mPrivacySensitive = PRIVACY_SENSITIVE_DEFAULT;
 };
 
 class AAudioArgsParser : public AAudioParameters {
@@ -341,6 +378,9 @@
                 case 'z':
                     setFramesPerCallback(atoi(&arg[2]));
                     break;
+                case 'S':
+                    setPrivacySensitive(atoi(&arg[2]));
+                    break;
                 default:
                     unrecognized = true;
                     break;
@@ -399,6 +439,9 @@
         printf("      -x to use EXCLUSIVE mode\n");
         printf("      -y{contentType} eg. 1 for AAUDIO_CONTENT_TYPE_SPEECH\n");
         printf("      -z{callbackSize} or block size, in frames, default = 0\n");
+        printf("      -S{0|1} set privacy Sensitive enabled or disabled\n");
+        printf("          0 = disabled\n");
+        printf("          1 = enabled\n");
     }
 
     static aaudio_performance_mode_t parseAllowedCapturePolicy(char c) {
@@ -506,10 +549,15 @@
                    getContentType(), s_getContentType(stream));
         }
 
-        if (AAudioStream_getDirection(stream) == AAUDIO_DIRECTION_INPUT
-            && s_getInputPreset != nullptr) {
+        if (AAudioStream_getDirection(stream) == AAUDIO_DIRECTION_INPUT) {
+            if (s_getInputPreset != nullptr) {
                 printf("  InputPreset:  requested = %d, actual = %d\n",
                        getInputPreset(), s_getInputPreset(stream));
+            }
+            if (s_isPrivacySensitive != nullptr) {
+                printf("  Privacy Sensitive:  requested = %d, actual = %d\n",
+                       isPrivacySensitive(), s_isPrivacySensitive(stream));
+            }
         }
 
         printf("  Is MMAP used? %s\n", AAudioStream_isMMapUsed(stream)
diff --git a/media/libaaudio/include/aaudio/AAudio.h b/media/libaaudio/include/aaudio/AAudio.h
index a4322a1..5bebd61 100644
--- a/media/libaaudio/include/aaudio/AAudio.h
+++ b/media/libaaudio/include/aaudio/AAudio.h
@@ -759,6 +759,28 @@
 AAUDIO_API void AAudioStreamBuilder_setSessionId(AAudioStreamBuilder* builder,
         aaudio_session_id_t sessionId) __INTRODUCED_IN(28);
 
+
+/** Indicates whether this input stream must be marked as privacy sensitive or not.
+ *
+ * When true, this input stream is privacy sensitive and any concurrent capture
+ * is not permitted.
+ *
+ * This is off (false) by default except when the input preset is {@link #AAUDIO_INPUT_PRESET_VOICE_COMMUNICATION}
+ * or {@link #AAUDIO_INPUT_PRESET_CAMCORDER}.
+ *
+ * Always takes precedence over default from input preset when set explicitly.
+ *
+ * Only relevant if the stream direction is {@link #AAUDIO_DIRECTION_INPUT}.
+ *
+ * Added in API level 30.
+ *
+ * @param builder reference provided by AAudio_createStreamBuilder()
+ * @param privacySensitive true if capture from this stream must be marked as privacy sensitive,
+ * false otherwise.
+ */
+AAUDIO_API void AAudioStreamBuilder_setPrivacySensitive(AAudioStreamBuilder* builder,
+        bool privacySensitive) __INTRODUCED_IN(30);
+
 /**
  * Return one of these values from the data callback function.
  */
@@ -1444,6 +1466,20 @@
 AAUDIO_API aaudio_allowed_capture_policy_t AAudioStream_getAllowedCapturePolicy(
         AAudioStream* stream) __INTRODUCED_IN(29);
 
+
+/**
+ * Return whether this input stream is marked as privacy sensitive or not.
+ *
+ * See {@link #AAudioStreamBuilder_setPrivacySensitive()}.
+ *
+ * Added in API level 30.
+ *
+ * @param stream reference provided by AAudioStreamBuilder_openStream()
+ * @return true if privacy sensitive, false otherwise
+ */
+AAUDIO_API bool AAudioStream_isPrivacySensitive(AAudioStream* stream)
+        __INTRODUCED_IN(30);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/media/libaaudio/src/Android.bp b/media/libaaudio/src/Android.bp
index 463f606..baada22 100644
--- a/media/libaaudio/src/Android.bp
+++ b/media/libaaudio/src/Android.bp
@@ -54,6 +54,10 @@
         },
     },
 
+    stubs: {
+        symbol_file: "libaaudio.map.txt",
+        versions: ["28"],
+    },
 }
 
 cc_library {
diff --git a/media/libaaudio/src/binding/AAudioStreamConfiguration.cpp b/media/libaaudio/src/binding/AAudioStreamConfiguration.cpp
index a987fab..b785f88 100644
--- a/media/libaaudio/src/binding/AAudioStreamConfiguration.cpp
+++ b/media/libaaudio/src/binding/AAudioStreamConfiguration.cpp
@@ -66,6 +66,8 @@
     if (status != NO_ERROR) goto error;
     status = parcel->writeInt32(getSessionId());
     if (status != NO_ERROR) goto error;
+    status = parcel->writeInt32(isPrivacySensitive() ? 1 : 0);
+    if (status != NO_ERROR) goto error;
     return NO_ERROR;
 error:
     ALOGE("%s(): write failed = %d", __func__, status);
@@ -111,7 +113,9 @@
     status = parcel->readInt32(&value);
     if (status != NO_ERROR) goto error;
     setSessionId(value);
-
+    status = parcel->readInt32(&value);
+    if (status != NO_ERROR) goto error;
+    setPrivacySensitive(value == 1);
     return NO_ERROR;
 error:
     ALOGE("%s(): read failed = %d", __func__, status);
diff --git a/media/libaaudio/src/client/AudioStreamInternal.cpp b/media/libaaudio/src/client/AudioStreamInternal.cpp
index 7481daa..bfad254 100644
--- a/media/libaaudio/src/client/AudioStreamInternal.cpp
+++ b/media/libaaudio/src/client/AudioStreamInternal.cpp
@@ -116,6 +116,7 @@
     request.getConfiguration().setUsage(getUsage());
     request.getConfiguration().setContentType(getContentType());
     request.getConfiguration().setInputPreset(getInputPreset());
+    request.getConfiguration().setPrivacySensitive(isPrivacySensitive());
 
     request.getConfiguration().setBufferCapacity(builder.getBufferCapacity());
 
diff --git a/media/libaaudio/src/core/AAudioAudio.cpp b/media/libaaudio/src/core/AAudioAudio.cpp
index 8040e6a..184e9cb 100644
--- a/media/libaaudio/src/core/AAudioAudio.cpp
+++ b/media/libaaudio/src/core/AAudioAudio.cpp
@@ -149,6 +149,12 @@
     streamBuilder->setInputPreset(inputPreset);
 }
 
+AAUDIO_API void AAudioStreamBuilder_setPrivacySensitive(AAudioStreamBuilder* builder,
+                                                   bool privacySensitive) {
+    AudioStreamBuilder *streamBuilder = convertAAudioBuilderToStreamBuilder(builder);
+    streamBuilder->setPrivacySensitiveRequest(privacySensitive);
+}
+
 AAUDIO_API void AAudioStreamBuilder_setBufferCapacityInFrames(AAudioStreamBuilder* builder,
                                                               int32_t frames)
 {
@@ -507,3 +513,9 @@
     AudioStream *audioStream = convertAAudioStreamToAudioStream(stream);
     return audioStream->isMMap();
 }
+
+AAUDIO_API bool AAudioStream_isPrivacySensitive(AAudioStream* stream)
+{
+    AudioStream *audioStream = convertAAudioStreamToAudioStream(stream);
+    return audioStream->isPrivacySensitive();
+}
diff --git a/media/libaaudio/src/core/AAudioStreamParameters.cpp b/media/libaaudio/src/core/AAudioStreamParameters.cpp
index c9711da..58058f5 100644
--- a/media/libaaudio/src/core/AAudioStreamParameters.cpp
+++ b/media/libaaudio/src/core/AAudioStreamParameters.cpp
@@ -47,6 +47,7 @@
     mContentType          = other.mContentType;
     mInputPreset          = other.mInputPreset;
     mAllowedCapturePolicy = other.mAllowedCapturePolicy;
+    mIsPrivacySensitive   = other.mIsPrivacySensitive;
 }
 
 static aaudio_result_t isFormatValid(audio_format_t format) {
@@ -195,4 +196,5 @@
     ALOGD("mContentType          = %6d", mContentType);
     ALOGD("mInputPreset          = %6d", mInputPreset);
     ALOGD("mAllowedCapturePolicy = %6d", mAllowedCapturePolicy);
+    ALOGD("mIsPrivacySensitive   = %s", mIsPrivacySensitive ? "true" : "false");
 }
diff --git a/media/libaaudio/src/core/AAudioStreamParameters.h b/media/libaaudio/src/core/AAudioStreamParameters.h
index 2e21a8d..3e65b37 100644
--- a/media/libaaudio/src/core/AAudioStreamParameters.h
+++ b/media/libaaudio/src/core/AAudioStreamParameters.h
@@ -128,6 +128,14 @@
         mSessionId = sessionId;
     }
 
+    bool isPrivacySensitive() const {
+        return mIsPrivacySensitive;
+    }
+
+    void setPrivacySensitive(bool privacySensitive) {
+        mIsPrivacySensitive = privacySensitive;
+    }
+
     /**
      * @return bytes per frame of getFormat()
      */
@@ -158,6 +166,7 @@
     int32_t                         mBufferCapacity       = AAUDIO_UNSPECIFIED;
     aaudio_allowed_capture_policy_t mAllowedCapturePolicy = AAUDIO_UNSPECIFIED;
     aaudio_session_id_t             mSessionId            = AAUDIO_SESSION_ID_NONE;
+    bool                            mIsPrivacySensitive   = false;
 };
 
 } /* namespace aaudio */
diff --git a/media/libaaudio/src/core/AudioStream.cpp b/media/libaaudio/src/core/AudioStream.cpp
index 5303631..1560e0c 100644
--- a/media/libaaudio/src/core/AudioStream.cpp
+++ b/media/libaaudio/src/core/AudioStream.cpp
@@ -91,6 +91,7 @@
     if (mAllowedCapturePolicy == AAUDIO_UNSPECIFIED) {
         mAllowedCapturePolicy = AAUDIO_ALLOW_CAPTURE_BY_ALL;
     }
+    mIsPrivacySensitive = builder.isPrivacySensitive();
 
     // callbacks
     mFramesPerDataCallback = builder.getFramesPerDataCallback();
@@ -474,7 +475,7 @@
 
 void AudioStream::MyPlayerBase::registerWithAudioManager() {
     if (!mRegistered) {
-        init(android::PLAYER_TYPE_AAUDIO, AUDIO_USAGE_MEDIA);
+        init(android::PLAYER_TYPE_AAUDIO, AAudioConvert_usageToInternal(mParent->getUsage()));
         mRegistered = true;
     }
 }
diff --git a/media/libaaudio/src/core/AudioStream.h b/media/libaaudio/src/core/AudioStream.h
index 044c979..b4ffcf2 100644
--- a/media/libaaudio/src/core/AudioStream.h
+++ b/media/libaaudio/src/core/AudioStream.h
@@ -234,6 +234,10 @@
         return mSessionId;
     }
 
+    bool isPrivacySensitive() const {
+        return mIsPrivacySensitive;
+    }
+
     /**
      * This is only valid after setSamplesPerFrame() and setFormat() have been called.
      */
@@ -543,6 +547,13 @@
         mAllowedCapturePolicy = policy;
     }
 
+    /**
+     * This should not be called after the open() call.
+     */
+    void setPrivacySensitive(bool privacySensitive) {
+        mIsPrivacySensitive = privacySensitive;
+    }
+
 private:
 
     aaudio_result_t safeStop();
@@ -565,6 +576,7 @@
     aaudio_content_type_t       mContentType     = AAUDIO_UNSPECIFIED;
     aaudio_input_preset_t       mInputPreset     = AAUDIO_UNSPECIFIED;
     aaudio_allowed_capture_policy_t mAllowedCapturePolicy = AAUDIO_ALLOW_CAPTURE_BY_ALL;
+    bool                        mIsPrivacySensitive = false;
 
     int32_t                     mSessionId = AAUDIO_UNSPECIFIED;
 
diff --git a/media/libaaudio/src/core/AudioStreamBuilder.cpp b/media/libaaudio/src/core/AudioStreamBuilder.cpp
index 44f45b3..af28a59 100644
--- a/media/libaaudio/src/core/AudioStreamBuilder.cpp
+++ b/media/libaaudio/src/core/AudioStreamBuilder.cpp
@@ -158,6 +158,19 @@
         return AAUDIO_ERROR_ILLEGAL_ARGUMENT;
     }
 
+    setPrivacySensitive(false);
+    if (mPrivacySensitiveReq == PRIVACY_SENSITIVE_DEFAULT) {
+        // When not explicitly requested, set privacy sensitive mode according to input preset:
+        // communication and camcorder captures are considered privacy sensitive by default.
+        aaudio_input_preset_t preset = getInputPreset();
+        if (preset == AAUDIO_INPUT_PRESET_CAMCORDER
+                || preset == AAUDIO_INPUT_PRESET_VOICE_COMMUNICATION) {
+            setPrivacySensitive(true);
+        }
+    } else if (mPrivacySensitiveReq == PRIVACY_SENSITIVE_ENABLED) {
+        setPrivacySensitive(true);
+    }
+
     result = builder_createStream(getDirection(), sharingMode, allowMMap, &audioStream);
     if (result == AAUDIO_OK) {
         // Open the stream using the parameters from the builder.
@@ -257,4 +270,5 @@
           mFramesPerDataCallback);
     ALOGI("usage  = %6d, contentType = %d, inputPreset = %d, allowedCapturePolicy = %d",
           getUsage(), getContentType(), getInputPreset(), getAllowedCapturePolicy());
+    ALOGI("privacy sensitive = %s", isPrivacySensitive() ? "true" : "false");
 }
diff --git a/media/libaaudio/src/core/AudioStreamBuilder.h b/media/libaaudio/src/core/AudioStreamBuilder.h
index 8149af2..d5fb80d 100644
--- a/media/libaaudio/src/core/AudioStreamBuilder.h
+++ b/media/libaaudio/src/core/AudioStreamBuilder.h
@@ -98,6 +98,12 @@
         return this;
     }
 
+    AudioStreamBuilder* setPrivacySensitiveRequest(bool privacySensitive) {
+        mPrivacySensitiveReq =
+            privacySensitive ? PRIVACY_SENSITIVE_ENABLED : PRIVACY_SENSITIVE_DISABLED;
+        return this;
+    }
+
     aaudio_result_t build(AudioStream **streamPtr);
 
     virtual aaudio_result_t validate() const override;
@@ -114,6 +120,14 @@
 
     AAudioStream_errorCallback mErrorCallbackProc = nullptr;
     void                      *mErrorCallbackUserData = nullptr;
+
+    enum {
+        PRIVACY_SENSITIVE_DEFAULT = -1,
+        PRIVACY_SENSITIVE_DISABLED = 0,
+        PRIVACY_SENSITIVE_ENABLED = 1,
+    };
+    typedef int32_t privacy_sensitive_t;
+    privacy_sensitive_t        mPrivacySensitiveReq = PRIVACY_SENSITIVE_DEFAULT;
 };
 
 } /* namespace aaudio */
diff --git a/media/libaaudio/src/legacy/AudioStreamRecord.cpp b/media/libaaudio/src/legacy/AudioStreamRecord.cpp
index 71efc30..54af580 100644
--- a/media/libaaudio/src/legacy/AudioStreamRecord.cpp
+++ b/media/libaaudio/src/legacy/AudioStreamRecord.cpp
@@ -142,11 +142,13 @@
     const audio_source_t source =
             AAudioConvert_inputPresetToAudioSource(builder.getInputPreset());
 
+    const audio_flags_mask_t attrFlags =
+            AAudioConvert_privacySensitiveToAudioFlagsMask(builder.isPrivacySensitive());
     const audio_attributes_t attributes = {
             .content_type = contentType,
             .usage = AUDIO_USAGE_UNKNOWN, // only used for output
             .source = source,
-            .flags = AUDIO_FLAG_NONE, // Different than the AUDIO_INPUT_FLAGS
+            .flags = attrFlags, // Different than the AUDIO_INPUT_FLAGS
             .tags = ""
     };
 
diff --git a/media/libaaudio/src/utility/AAudioUtilities.cpp b/media/libaaudio/src/utility/AAudioUtilities.cpp
index c2f7fd0..ef89697 100644
--- a/media/libaaudio/src/utility/AAudioUtilities.cpp
+++ b/media/libaaudio/src/utility/AAudioUtilities.cpp
@@ -234,6 +234,11 @@
     }
 }
 
+audio_flags_mask_t AAudioConvert_privacySensitiveToAudioFlagsMask(
+        bool privacySensitive) {
+    return privacySensitive ? AUDIO_FLAG_CAPTURE_PRIVATE : AUDIO_FLAG_NONE;
+}
+
 int32_t AAudioConvert_framesToBytes(int32_t numFrames,
                                     int32_t bytesPerFrame,
                                     int32_t *sizeInBytes) {
diff --git a/media/libaaudio/src/utility/AAudioUtilities.h b/media/libaaudio/src/utility/AAudioUtilities.h
index 5dcddf3..d2e4805 100644
--- a/media/libaaudio/src/utility/AAudioUtilities.h
+++ b/media/libaaudio/src/utility/AAudioUtilities.h
@@ -92,6 +92,9 @@
 audio_flags_mask_t AAudioConvert_allowCapturePolicyToAudioFlagsMask(
         aaudio_allowed_capture_policy_t policy);
 
+audio_flags_mask_t AAudioConvert_privacySensitiveToAudioFlagsMask(
+        bool privacySensitive);
+
 // Note that this code may be replaced by Settings or by some other system configuration tool.
 
 /**
diff --git a/media/libaudioclient/AudioEffect.cpp b/media/libaudioclient/AudioEffect.cpp
index 1cc5fe6..7d5b690 100644
--- a/media/libaudioclient/AudioEffect.cpp
+++ b/media/libaudioclient/AudioEffect.cpp
@@ -48,12 +48,13 @@
                 effect_callback_t cbf,
                 void* user,
                 audio_session_t sessionId,
-                audio_io_handle_t io
+                audio_io_handle_t io,
+                const AudioDeviceTypeAddr& device
                 )
     : mStatus(NO_INIT), mOpPackageName(opPackageName)
 {
     AutoMutex lock(mConstructLock);
-    mStatus = set(type, uuid, priority, cbf, user, sessionId, io);
+    mStatus = set(type, uuid, priority, cbf, user, sessionId, io, device);
 }
 
 AudioEffect::AudioEffect(const char *typeStr,
@@ -63,7 +64,8 @@
                 effect_callback_t cbf,
                 void* user,
                 audio_session_t sessionId,
-                audio_io_handle_t io
+                audio_io_handle_t io,
+                const AudioDeviceTypeAddr& device
                 )
     : mStatus(NO_INIT), mOpPackageName(opPackageName)
 {
@@ -87,7 +89,7 @@
     }
 
     AutoMutex lock(mConstructLock);
-    mStatus = set(pType, pUuid, priority, cbf, user, sessionId, io);
+    mStatus = set(pType, pUuid, priority, cbf, user, sessionId, io, device);
 }
 
 status_t AudioEffect::set(const effect_uuid_t *type,
@@ -96,7 +98,8 @@
                 effect_callback_t cbf,
                 void* user,
                 audio_session_t sessionId,
-                audio_io_handle_t io)
+                audio_io_handle_t io,
+                const AudioDeviceTypeAddr& device)
 {
     sp<IEffect> iEffect;
     sp<IMemory> cblk;
@@ -109,6 +112,10 @@
         return INVALID_OPERATION;
     }
 
+    if (sessionId == AUDIO_SESSION_DEVICE && io != AUDIO_IO_HANDLE_NONE) {
+        ALOGW("IO handle should not be specified for device effect");
+        return BAD_VALUE;
+    }
     const sp<IAudioFlinger>& audioFlinger = AudioSystem::get_audio_flinger();
     if (audioFlinger == 0) {
         ALOGE("set(): Could not get audioflinger");
@@ -133,7 +140,7 @@
     mClientPid = IPCThreadState::self()->getCallingPid();
 
     iEffect = audioFlinger->createEffect((effect_descriptor_t *)&mDescriptor,
-            mIEffectClient, priority, io, mSessionId, mOpPackageName, mClientPid,
+            mIEffectClient, priority, io, mSessionId, device, mOpPackageName, mClientPid,
             &mStatus, &mId, &enabled);
 
     if (iEffect == 0 || (mStatus != NO_ERROR && mStatus != ALREADY_EXISTS)) {
@@ -171,7 +178,7 @@
     ALOGV("set() %p OK effect: %s id: %d status %d enabled %d pid %d", this, mDescriptor.name, mId,
             mStatus, mEnabled, mClientPid);
 
-    if (mSessionId > AUDIO_SESSION_OUTPUT_MIX) {
+    if (!audio_is_global_session(mSessionId)) {
         AudioSystem::acquireAudioSessionId(mSessionId, mClientPid);
     }
 
@@ -184,7 +191,7 @@
     ALOGV("Destructor %p", this);
 
     if (mStatus == NO_ERROR || mStatus == ALREADY_EXISTS) {
-        if (mSessionId > AUDIO_SESSION_OUTPUT_MIX) {
+        if (!audio_is_global_session(mSessionId)) {
             AudioSystem::releaseAudioSessionId(mSessionId, mClientPid);
         }
         if (mIEffect != NULL) {
diff --git a/media/libaudioclient/AudioRecord.cpp b/media/libaudioclient/AudioRecord.cpp
index 0f2d48e..a438c77 100644
--- a/media/libaudioclient/AudioRecord.cpp
+++ b/media/libaudioclient/AudioRecord.cpp
@@ -32,7 +32,7 @@
 #include <private/media/AudioTrackShared.h>
 #include <processgroup/sched_policy.h>
 #include <media/IAudioFlinger.h>
-#include <media/MediaAnalyticsItem.h>
+#include <media/MediaMetricsItem.h>
 #include <media/TypeConverter.h>
 
 #define WAIT_PERIOD_MS          10
@@ -79,37 +79,37 @@
 #define MM_PREFIX "android.media.audiorecord." // avoid cut-n-paste errors.
 
     // Java API 28 entries, do not change.
-    mAnalyticsItem->setCString(MM_PREFIX "encoding", toString(record->mFormat).c_str());
-    mAnalyticsItem->setCString(MM_PREFIX "source", toString(record->mAttributes.source).c_str());
-    mAnalyticsItem->setInt32(MM_PREFIX "latency", (int32_t)record->mLatency); // bad estimate.
-    mAnalyticsItem->setInt32(MM_PREFIX "samplerate", (int32_t)record->mSampleRate);
-    mAnalyticsItem->setInt32(MM_PREFIX "channels", (int32_t)record->mChannelCount);
+    mMetricsItem->setCString(MM_PREFIX "encoding", toString(record->mFormat).c_str());
+    mMetricsItem->setCString(MM_PREFIX "source", toString(record->mAttributes.source).c_str());
+    mMetricsItem->setInt32(MM_PREFIX "latency", (int32_t)record->mLatency); // bad estimate.
+    mMetricsItem->setInt32(MM_PREFIX "samplerate", (int32_t)record->mSampleRate);
+    mMetricsItem->setInt32(MM_PREFIX "channels", (int32_t)record->mChannelCount);
 
     // Non-API entries, these can change.
-    mAnalyticsItem->setInt32(MM_PREFIX "portId", (int32_t)record->mPortId);
-    mAnalyticsItem->setInt32(MM_PREFIX "frameCount", (int32_t)record->mFrameCount);
-    mAnalyticsItem->setCString(MM_PREFIX "attributes", toString(record->mAttributes).c_str());
-    mAnalyticsItem->setInt64(MM_PREFIX "channelMask", (int64_t)record->mChannelMask);
+    mMetricsItem->setInt32(MM_PREFIX "portId", (int32_t)record->mPortId);
+    mMetricsItem->setInt32(MM_PREFIX "frameCount", (int32_t)record->mFrameCount);
+    mMetricsItem->setCString(MM_PREFIX "attributes", toString(record->mAttributes).c_str());
+    mMetricsItem->setInt64(MM_PREFIX "channelMask", (int64_t)record->mChannelMask);
 
     // log total duration recording, including anything currently running.
     int64_t activeNs = 0;
     if (mStartedNs != 0) {
         activeNs = systemTime() - mStartedNs;
     }
-    mAnalyticsItem->setDouble(MM_PREFIX "durationMs", (mDurationNs + activeNs) * 1e-6);
-    mAnalyticsItem->setInt64(MM_PREFIX "startCount", (int64_t)mCount);
+    mMetricsItem->setDouble(MM_PREFIX "durationMs", (mDurationNs + activeNs) * 1e-6);
+    mMetricsItem->setInt64(MM_PREFIX "startCount", (int64_t)mCount);
 
     if (mLastError != NO_ERROR) {
-        mAnalyticsItem->setInt32(MM_PREFIX "lastError.code", (int32_t)mLastError);
-        mAnalyticsItem->setCString(MM_PREFIX "lastError.at", mLastErrorFunc.c_str());
+        mMetricsItem->setInt32(MM_PREFIX "lastError.code", (int32_t)mLastError);
+        mMetricsItem->setCString(MM_PREFIX "lastError.at", mLastErrorFunc.c_str());
     }
 }
 
 // hand the user a snapshot of the metrics.
-status_t AudioRecord::getMetrics(MediaAnalyticsItem * &item)
+status_t AudioRecord::getMetrics(mediametrics::Item * &item)
 {
     mMediaMetrics.gather(this);
-    MediaAnalyticsItem *tmp = mMediaMetrics.dup();
+    mediametrics::Item *tmp = mMediaMetrics.dup();
     if (tmp == nullptr) {
         return BAD_VALUE;
     }
@@ -262,8 +262,12 @@
     }
 
     if (pAttributes == NULL) {
-        memset(&mAttributes, 0, sizeof(audio_attributes_t));
+        mAttributes = AUDIO_ATTRIBUTES_INITIALIZER;
         mAttributes.source = inputSource;
+        if (inputSource == AUDIO_SOURCE_VOICE_COMMUNICATION
+                || inputSource == AUDIO_SOURCE_CAMCORDER) {
+            mAttributes.flags |= AUDIO_FLAG_CAPTURE_PRIVATE;
+        }
     } else {
         // stream type shouldn't be looked at, this track has audio attributes
         memcpy(&mAttributes, pAttributes, sizeof(audio_attributes_t));
@@ -892,7 +896,6 @@
 {
     // previous and new IAudioRecord sequence numbers are used to detect track re-creation
     uint32_t oldSequence = 0;
-    uint32_t newSequence;
 
     Proxy::Buffer buffer;
     status_t status = NO_ERROR;
@@ -910,7 +913,7 @@
             // start of lock scope
             AutoMutex lock(mLock);
 
-            newSequence = mSequence;
+            uint32_t newSequence = mSequence;
             // did previous obtainBuffer() fail due to media server death or voluntary invalidation?
             if (status == DEAD_OBJECT) {
                 // re-create track, unless someone else has already done so
@@ -947,6 +950,7 @@
     audioBuffer->frameCount = buffer.mFrameCount;
     audioBuffer->size = buffer.mFrameCount * mFrameSize;
     audioBuffer->raw = buffer.mRaw;
+    audioBuffer->sequence = oldSequence;
     if (nonContig != NULL) {
         *nonContig = buffer.mNonContig;
     }
@@ -967,6 +971,12 @@
     buffer.mRaw = audioBuffer->raw;
 
     AutoMutex lock(mLock);
+    if (audioBuffer->sequence != mSequence) {
+        // This Buffer came from a different IAudioRecord instance, so ignore the releaseBuffer
+        ALOGD("%s is no-op due to IAudioRecord sequence mismatch %u != %u",
+                __func__, audioBuffer->sequence, mSequence);
+        return;
+    }
     mInOverrun = false;
     mProxy->releaseBuffer(&buffer);
 
diff --git a/media/libaudioclient/AudioSystem.cpp b/media/libaudioclient/AudioSystem.cpp
index 54184e0..941cf54 100644
--- a/media/libaudioclient/AudioSystem.cpp
+++ b/media/libaudioclient/AudioSystem.cpp
@@ -1491,7 +1491,14 @@
             }
         }
     }
-    ALOGE("invalid attributes %s when converting to stream",  toString(attr).c_str());
+    switch (attr.usage) {
+        case AUDIO_USAGE_VIRTUAL_SOURCE:
+            // virtual source is not expected to have an associated product strategy
+            break;
+        default:
+            ALOGE("invalid attributes %s when converting to stream",  toString(attr).c_str());
+            break;
+    }
     return AUDIO_STREAM_MUSIC;
 }
 
@@ -1532,6 +1539,35 @@
     return aps->isCallScreenModeSupported();
 }
 
+status_t AudioSystem::setPreferredDeviceForStrategy(product_strategy_t strategy,
+                                                    const AudioDeviceTypeAddr &device)
+{
+    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
+    if (aps == 0) {
+        return PERMISSION_DENIED;
+    }
+    return aps->setPreferredDeviceForStrategy(strategy, device);
+}
+
+status_t AudioSystem::removePreferredDeviceForStrategy(product_strategy_t strategy)
+{
+    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
+    if (aps == 0) {
+        return PERMISSION_DENIED;
+    }
+    return aps->removePreferredDeviceForStrategy(strategy);
+}
+
+status_t AudioSystem::getPreferredDeviceForStrategy(product_strategy_t strategy,
+        AudioDeviceTypeAddr &device)
+{
+    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
+    if (aps == 0) {
+        return PERMISSION_DENIED;
+    }
+    return aps->getPreferredDeviceForStrategy(strategy, device);
+}
+
 // ---------------------------------------------------------------------------
 
 int AudioSystem::AudioPolicyServiceClient::addAudioPortCallback(
diff --git a/media/libaudioclient/AudioTrack.cpp b/media/libaudioclient/AudioTrack.cpp
index e8d7b60..3151feb 100644
--- a/media/libaudioclient/AudioTrack.cpp
+++ b/media/libaudioclient/AudioTrack.cpp
@@ -35,7 +35,7 @@
 #include <media/AudioParameter.h>
 #include <media/AudioResamplerPublic.h>
 #include <media/AudioSystem.h>
-#include <media/MediaAnalyticsItem.h>
+#include <media/MediaMetricsItem.h>
 #include <media/TypeConverter.h>
 
 #define WAIT_PERIOD_MS                  10
@@ -183,26 +183,26 @@
 #define MM_PREFIX "android.media.audiotrack." // avoid cut-n-paste errors.
 
     // Java API 28 entries, do not change.
-    mAnalyticsItem->setCString(MM_PREFIX "streamtype", toString(track->streamType()).c_str());
-    mAnalyticsItem->setCString(MM_PREFIX "type",
+    mMetricsItem->setCString(MM_PREFIX "streamtype", toString(track->streamType()).c_str());
+    mMetricsItem->setCString(MM_PREFIX "type",
             toString(track->mAttributes.content_type).c_str());
-    mAnalyticsItem->setCString(MM_PREFIX "usage", toString(track->mAttributes.usage).c_str());
+    mMetricsItem->setCString(MM_PREFIX "usage", toString(track->mAttributes.usage).c_str());
 
     // Non-API entries, these can change due to a Java string mistake.
-    mAnalyticsItem->setInt32(MM_PREFIX "sampleRate", (int32_t)track->mSampleRate);
-    mAnalyticsItem->setInt64(MM_PREFIX "channelMask", (int64_t)track->mChannelMask);
+    mMetricsItem->setInt32(MM_PREFIX "sampleRate", (int32_t)track->mSampleRate);
+    mMetricsItem->setInt64(MM_PREFIX "channelMask", (int64_t)track->mChannelMask);
     // Non-API entries, these can change.
-    mAnalyticsItem->setInt32(MM_PREFIX "portId", (int32_t)track->mPortId);
-    mAnalyticsItem->setCString(MM_PREFIX "encoding", toString(track->mFormat).c_str());
-    mAnalyticsItem->setInt32(MM_PREFIX "frameCount", (int32_t)track->mFrameCount);
-    mAnalyticsItem->setCString(MM_PREFIX "attributes", toString(track->mAttributes).c_str());
+    mMetricsItem->setInt32(MM_PREFIX "portId", (int32_t)track->mPortId);
+    mMetricsItem->setCString(MM_PREFIX "encoding", toString(track->mFormat).c_str());
+    mMetricsItem->setInt32(MM_PREFIX "frameCount", (int32_t)track->mFrameCount);
+    mMetricsItem->setCString(MM_PREFIX "attributes", toString(track->mAttributes).c_str());
 }
 
 // hand the user a snapshot of the metrics.
-status_t AudioTrack::getMetrics(MediaAnalyticsItem * &item)
+status_t AudioTrack::getMetrics(mediametrics::Item * &item)
 {
     mMediaMetrics.gather(this);
-    MediaAnalyticsItem *tmp = mMediaMetrics.dup();
+    mediametrics::Item *tmp = mMediaMetrics.dup();
     if (tmp == nullptr) {
         return BAD_VALUE;
     }
diff --git a/media/libaudioclient/IAudioFlinger.cpp b/media/libaudioclient/IAudioFlinger.cpp
index 04ef3dd..cbc98bd 100644
--- a/media/libaudioclient/IAudioFlinger.cpp
+++ b/media/libaudioclient/IAudioFlinger.cpp
@@ -658,6 +658,7 @@
                                     int32_t priority,
                                     audio_io_handle_t output,
                                     audio_session_t sessionId,
+                                    const AudioDeviceTypeAddr& device,
                                     const String16& opPackageName,
                                     pid_t pid,
                                     status_t *status,
@@ -666,12 +667,11 @@
     {
         Parcel data, reply;
         sp<IEffect> effect;
-
         if (pDesc == NULL) {
             if (status != NULL) {
                 *status = BAD_VALUE;
             }
-            return effect;
+            return nullptr;
         }
 
         data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
@@ -680,6 +680,12 @@
         data.writeInt32(priority);
         data.writeInt32((int32_t) output);
         data.writeInt32(sessionId);
+        if (data.writeParcelable(device) != NO_ERROR) {
+            if (status != NULL) {
+                *status = NO_INIT;
+            }
+            return nullptr;
+        }
         data.writeString16(opPackageName);
         data.writeInt32((int32_t) pid);
 
@@ -1380,14 +1386,18 @@
             int32_t priority = data.readInt32();
             audio_io_handle_t output = (audio_io_handle_t) data.readInt32();
             audio_session_t sessionId = (audio_session_t) data.readInt32();
+            AudioDeviceTypeAddr device;
+            status_t status = NO_ERROR;
+            if ((status = data.readParcelable(&device)) != NO_ERROR) {
+                return status;
+            }
             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,
+            sp<IEffect> effect = createEffect(&desc, client, priority, output, sessionId, device,
                     opPackageName, pid, &status, &id, &enabled);
             reply->writeInt32(status);
             reply->writeInt32(id);
diff --git a/media/libaudioclient/IAudioPolicyService.cpp b/media/libaudioclient/IAudioPolicyService.cpp
index f27e21a..b9e6e33 100644
--- a/media/libaudioclient/IAudioPolicyService.cpp
+++ b/media/libaudioclient/IAudioPolicyService.cpp
@@ -105,7 +105,10 @@
     SET_ALLOWED_CAPTURE_POLICY,
     MOVE_EFFECTS_TO_IO,
     SET_RTT_ENABLED,
-    IS_CALL_SCREEN_MODE_SUPPORTED
+    IS_CALL_SCREEN_MODE_SUPPORTED,
+    SET_PREFERRED_DEVICE_FOR_PRODUCT_STRATEGY,
+    REMOVE_PREFERRED_DEVICE_FOR_PRODUCT_STRATEGY,
+    GET_PREFERRED_DEVICE_FOR_PRODUCT_STRATEGY,
 };
 
 #define MAX_ITEMS_PER_LIST 1024
@@ -1296,6 +1299,55 @@
         }
         return reply.readBool();
     }
+
+    virtual status_t setPreferredDeviceForStrategy(product_strategy_t strategy,
+            const AudioDeviceTypeAddr &device)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
+        data.writeUint32(static_cast<uint32_t>(strategy));
+        status_t status = device.writeToParcel(&data);
+        if (status != NO_ERROR) {
+            return BAD_VALUE;
+        }
+        status = remote()->transact(SET_PREFERRED_DEVICE_FOR_PRODUCT_STRATEGY,
+                data, &reply);
+        if (status != NO_ERROR) {
+           return status;
+        }
+        return static_cast<status_t>(reply.readInt32());
+    }
+
+    virtual status_t removePreferredDeviceForStrategy(product_strategy_t strategy)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
+        data.writeUint32(static_cast<uint32_t>(strategy));
+        status_t status = remote()->transact(REMOVE_PREFERRED_DEVICE_FOR_PRODUCT_STRATEGY,
+                data, &reply);
+        if (status != NO_ERROR) {
+           return status;
+        }
+        return static_cast<status_t>(reply.readInt32());
+    }
+
+    virtual status_t getPreferredDeviceForStrategy(product_strategy_t strategy,
+            AudioDeviceTypeAddr &device)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
+        data.writeUint32(static_cast<uint32_t>(strategy));
+        status_t status = remote()->transact(GET_PREFERRED_DEVICE_FOR_PRODUCT_STRATEGY,
+                data, &reply);
+        if (status != NO_ERROR) {
+            return status;
+        }
+        status = device.readFromParcel(&reply);
+        if (status != NO_ERROR) {
+            return status;
+        }
+        return static_cast<status_t>(reply.readInt32());
+    }
 };
 
 IMPLEMENT_META_INTERFACE(AudioPolicyService, "android.media.IAudioPolicyService");
@@ -1319,8 +1371,6 @@
         case UNREGISTER_EFFECT:
         case SET_EFFECT_ENABLED:
         case GET_OUTPUT_FOR_ATTR:
-        case ACQUIRE_SOUNDTRIGGER_SESSION:
-        case RELEASE_SOUNDTRIGGER_SESSION:
         case MOVE_EFFECTS_TO_IO:
             ALOGW("%s: transaction %d received from PID %d",
                   __func__, code, IPCThreadState::self()->getCallingPid());
@@ -1358,8 +1408,13 @@
         case GET_OFFLOAD_FORMATS_A2DP:
         case LIST_AUDIO_VOLUME_GROUPS:
         case GET_VOLUME_GROUP_FOR_ATTRIBUTES:
+        case ACQUIRE_SOUNDTRIGGER_SESSION:
+        case RELEASE_SOUNDTRIGGER_SESSION:
         case SET_RTT_ENABLED:
-        case IS_CALL_SCREEN_MODE_SUPPORTED: {
+        case IS_CALL_SCREEN_MODE_SUPPORTED:
+        case SET_PREFERRED_DEVICE_FOR_PRODUCT_STRATEGY:
+        case REMOVE_PREFERRED_DEVICE_FOR_PRODUCT_STRATEGY:
+        case GET_PREFERRED_DEVICE_FOR_PRODUCT_STRATEGY: {
             if (!isServiceUid(IPCThreadState::self()->getCallingUid())) {
                 ALOGW("%s: transaction %d received from PID %d unauthorized UID %d",
                       __func__, code, IPCThreadState::self()->getCallingPid(),
@@ -1972,8 +2027,6 @@
 
         case ACQUIRE_SOUNDTRIGGER_SESSION: {
             CHECK_INTERFACE(IAudioPolicyService, data, reply);
-            sp<IAudioPolicyServiceClient> client = interface_cast<IAudioPolicyServiceClient>(
-                    data.readStrongBinder());
             audio_session_t session = AUDIO_SESSION_NONE;
             audio_io_handle_t ioHandle = AUDIO_IO_HANDLE_NONE;
             audio_devices_t device = AUDIO_DEVICE_NONE;
@@ -1989,8 +2042,6 @@
 
         case RELEASE_SOUNDTRIGGER_SESSION: {
             CHECK_INTERFACE(IAudioPolicyService, data, reply);
-            sp<IAudioPolicyServiceClient> client = interface_cast<IAudioPolicyServiceClient>(
-                    data.readStrongBinder());
             audio_session_t session = (audio_session_t)data.readInt32();
             status_t status = releaseSoundTriggerSession(session);
             reply->writeInt32(status);
@@ -2388,6 +2439,40 @@
             return NO_ERROR;
         }
 
+        case SET_PREFERRED_DEVICE_FOR_PRODUCT_STRATEGY: {
+            CHECK_INTERFACE(IAudioPolicyService, data, reply);
+            product_strategy_t strategy = (product_strategy_t) data.readUint32();
+            AudioDeviceTypeAddr device;
+            status_t status = device.readFromParcel((Parcel*)&data);
+            if (status != NO_ERROR) {
+                return status;
+            }
+            status = setPreferredDeviceForStrategy(strategy, device);
+            reply->writeInt32(status);
+            return NO_ERROR;
+        }
+
+        case REMOVE_PREFERRED_DEVICE_FOR_PRODUCT_STRATEGY: {
+            CHECK_INTERFACE(IAudioPolicyService, data, reply);
+            product_strategy_t strategy = (product_strategy_t) data.readUint32();
+            status_t status = removePreferredDeviceForStrategy(strategy);
+            reply->writeInt32(status);
+            return NO_ERROR;
+        }
+
+        case GET_PREFERRED_DEVICE_FOR_PRODUCT_STRATEGY: {
+            CHECK_INTERFACE(IAudioPolicyService, data, reply);
+            product_strategy_t strategy = (product_strategy_t) data.readUint32();
+            AudioDeviceTypeAddr device;
+            status_t status = getPreferredDeviceForStrategy(strategy, device);
+            status_t marshall_status = device.writeToParcel(reply);
+            if (marshall_status != NO_ERROR) {
+                return marshall_status;
+            }
+            reply->writeInt32(status);
+            return NO_ERROR;
+        }
+
         default:
             return BBinder::onTransact(code, data, reply, flags);
     }
diff --git a/media/libaudioclient/include/media/AudioEffect.h b/media/libaudioclient/include/media/AudioEffect.h
index 6bd4137..f17d737 100644
--- a/media/libaudioclient/include/media/AudioEffect.h
+++ b/media/libaudioclient/include/media/AudioEffect.h
@@ -362,17 +362,21 @@
      *      (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.
+     * device: An audio device descriptor. Only used when "sessionID" is AUDIO_SESSION_DEVICE.
+     *         Specifies the audio device type and address the effect must be attached to.
+     *         If "sessionID" is AUDIO_SESSION_DEVICE then "io" must be AUDIO_IO_HANDLE_NONE.
      */
 
     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
-                  );
+                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,
+                const AudioDeviceTypeAddr& device = {}
+                );
 
     /* Constructor.
      *      Same as above but with type and uuid specified by character strings
@@ -384,7 +388,8 @@
                     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
+                    audio_io_handle_t io = AUDIO_IO_HANDLE_NONE,
+                    const AudioDeviceTypeAddr& device = {}
                     );
 
     /* Terminates the AudioEffect and unregisters it from AudioFlinger.
@@ -406,7 +411,8 @@
                             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
+                            audio_io_handle_t io = AUDIO_IO_HANDLE_NONE,
+                            const AudioDeviceTypeAddr& device = {}
                             );
 
     /* Result of constructing the AudioEffect. This must be checked
diff --git a/media/libaudioclient/include/media/AudioRecord.h b/media/libaudioclient/include/media/AudioRecord.h
index a3c0fe4..b510378 100644
--- a/media/libaudioclient/include/media/AudioRecord.h
+++ b/media/libaudioclient/include/media/AudioRecord.h
@@ -24,7 +24,7 @@
 #include <cutils/sched_policy.h>
 #include <media/AudioSystem.h>
 #include <media/AudioTimestamp.h>
-#include <media/MediaAnalyticsItem.h>
+#include <media/MediaMetricsItem.h>
 #include <media/Modulo.h>
 #include <media/MicrophoneInfo.h>
 #include <media/RecordingActivityTracker.h>
@@ -92,6 +92,11 @@
             int8_t*     i8;         // unsigned 8-bit, offset by 0x80
                                     // input to obtainBuffer(): unused, output: pointer to buffer
         };
+
+        uint32_t    sequence;       // IAudioRecord instance sequence number, as of obtainBuffer().
+                                    // It is set by obtainBuffer() and confirmed by releaseBuffer().
+                                    // Not "user-serviceable".
+                                    // TODO Consider sp<IMemory> instead, or in addition to this.
     };
 
     /* As a convenience, if a callback is supplied, a handler thread
@@ -270,7 +275,7 @@
     /*
      * return metrics information for the current instance.
      */
-            status_t getMetrics(MediaAnalyticsItem * &item);
+            status_t getMetrics(mediametrics::Item * &item);
 
     /* After it's created the track is not active. Call start() to
      * make it active. If set, the callback will start being called.
@@ -420,14 +425,17 @@
      *  frameCount  number of frames requested
      *  size        ignored
      *  raw         ignored
+     *  sequence    ignored
      * After error return:
      *  frameCount  0
      *  size        0
      *  raw         undefined
+     *  sequence    undefined
      * After successful return:
      *  frameCount  actual number of frames available, <= number requested
      *  size        actual number of bytes available
      *  raw         pointer to the buffer
+     *  sequence    IAudioRecord instance sequence number, as of obtainBuffer()
      */
 
             status_t    obtainBuffer(Buffer* audioBuffer, int32_t waitCount,
@@ -733,27 +741,27 @@
 private:
     class MediaMetrics {
       public:
-        MediaMetrics() : mAnalyticsItem(MediaAnalyticsItem::create("audiorecord")),
+        MediaMetrics() : mMetricsItem(mediametrics::Item::create("audiorecord")),
                          mCreatedNs(systemTime(SYSTEM_TIME_REALTIME)),
                          mStartedNs(0), mDurationNs(0), mCount(0),
                          mLastError(NO_ERROR) {
         }
         ~MediaMetrics() {
-            // mAnalyticsItem alloc failure will be flagged in the constructor
+            // mMetricsItem alloc failure will be flagged in the constructor
             // don't log empty records
-            if (mAnalyticsItem->count() > 0) {
-                mAnalyticsItem->selfrecord();
+            if (mMetricsItem->count() > 0) {
+                mMetricsItem->selfrecord();
             }
         }
         void gather(const AudioRecord *record);
-        MediaAnalyticsItem *dup() { return mAnalyticsItem->dup(); }
+        mediametrics::Item *dup() { return mMetricsItem->dup(); }
 
         void logStart(nsecs_t when) { mStartedNs = when; mCount++; }
         void logStop(nsecs_t when) { mDurationNs += (when-mStartedNs); mStartedNs = 0;}
         void markError(status_t errcode, const char *func)
                  { mLastError = errcode; mLastErrorFunc = func;}
       private:
-        std::unique_ptr<MediaAnalyticsItem> mAnalyticsItem;
+        std::unique_ptr<mediametrics::Item> mMetricsItem;
         nsecs_t mCreatedNs;     // XXX: perhaps not worth it in production
         nsecs_t mStartedNs;
         nsecs_t mDurationNs;
diff --git a/media/libaudioclient/include/media/AudioSystem.h b/media/libaudioclient/include/media/AudioSystem.h
index d7266b4..c4b528e 100644
--- a/media/libaudioclient/include/media/AudioSystem.h
+++ b/media/libaudioclient/include/media/AudioSystem.h
@@ -405,6 +405,17 @@
      */
     static status_t setAudioHalPids(const std::vector<pid_t>& pids);
 
+    static status_t setPreferredDeviceForStrategy(product_strategy_t strategy,
+            const AudioDeviceTypeAddr &device);
+
+    static status_t removePreferredDeviceForStrategy(product_strategy_t strategy);
+
+    static status_t getPreferredDeviceForStrategy(product_strategy_t strategy,
+            AudioDeviceTypeAddr &device);
+
+    static status_t getDeviceForStrategy(product_strategy_t strategy,
+            AudioDeviceTypeAddr &device);
+
     // ----------------------------------------------------------------------------
 
     class AudioVolumeGroupCallback : public RefBase
diff --git a/media/libaudioclient/include/media/AudioTrack.h b/media/libaudioclient/include/media/AudioTrack.h
index df5eabc..cfbce03 100644
--- a/media/libaudioclient/include/media/AudioTrack.h
+++ b/media/libaudioclient/include/media/AudioTrack.h
@@ -22,7 +22,7 @@
 #include <media/AudioTimestamp.h>
 #include <media/IAudioTrack.h>
 #include <media/AudioResamplerPublic.h>
-#include <media/MediaAnalyticsItem.h>
+#include <media/MediaMetricsItem.h>
 #include <media/Modulo.h>
 #include <utils/threads.h>
 
@@ -400,7 +400,7 @@
     /*
      * return metrics information for the current track.
      */
-            status_t getMetrics(MediaAnalyticsItem * &item);
+            status_t getMetrics(mediametrics::Item * &item);
 
     /* After it's created the track is not active. Call start() to
      * make it active. If set, the callback will start being called.
@@ -1230,19 +1230,19 @@
 private:
     class MediaMetrics {
       public:
-        MediaMetrics() : mAnalyticsItem(MediaAnalyticsItem::create("audiotrack")) {
+        MediaMetrics() : mMetricsItem(mediametrics::Item::create("audiotrack")) {
         }
         ~MediaMetrics() {
-            // mAnalyticsItem alloc failure will be flagged in the constructor
+            // mMetricsItem alloc failure will be flagged in the constructor
             // don't log empty records
-            if (mAnalyticsItem->count() > 0) {
-                mAnalyticsItem->selfrecord();
+            if (mMetricsItem->count() > 0) {
+                mMetricsItem->selfrecord();
             }
         }
         void gather(const AudioTrack *track);
-        MediaAnalyticsItem *dup() { return mAnalyticsItem->dup(); }
+        mediametrics::Item *dup() { return mMetricsItem->dup(); }
       private:
-        std::unique_ptr<MediaAnalyticsItem> mAnalyticsItem;
+        std::unique_ptr<mediametrics::Item> mMetricsItem;
     };
     MediaMetrics mMediaMetrics;
 };
diff --git a/media/libaudioclient/include/media/IAudioFlinger.h b/media/libaudioclient/include/media/IAudioFlinger.h
index 308e9d3..8703f55 100644
--- a/media/libaudioclient/include/media/IAudioFlinger.h
+++ b/media/libaudioclient/include/media/IAudioFlinger.h
@@ -409,7 +409,7 @@
     // Thus the IAudioFlingerClient must be a singleton per process.
     virtual void registerClient(const sp<IAudioFlingerClient>& client) = 0;
 
-    // retrieve the audio recording buffer size
+    // retrieve the audio recording buffer size in bytes
     // 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;
@@ -465,6 +465,7 @@
                                     // AudioFlinger doesn't take over handle reference from client
                                     audio_io_handle_t output,
                                     audio_session_t sessionId,
+                                    const AudioDeviceTypeAddr& device,
                                     const String16& callingPackage,
                                     pid_t pid,
                                     status_t *status,
diff --git a/media/libaudioclient/include/media/IAudioPolicyService.h b/media/libaudioclient/include/media/IAudioPolicyService.h
index 14c1d40..6623061 100644
--- a/media/libaudioclient/include/media/IAudioPolicyService.h
+++ b/media/libaudioclient/include/media/IAudioPolicyService.h
@@ -225,6 +225,14 @@
     virtual status_t setRttEnabled(bool enabled) = 0;
 
     virtual bool     isCallScreenModeSupported() = 0;
+
+    virtual status_t setPreferredDeviceForStrategy(product_strategy_t strategy,
+                                                   const AudioDeviceTypeAddr &device) = 0;
+
+    virtual status_t removePreferredDeviceForStrategy(product_strategy_t strategy) = 0;
+
+    virtual status_t getPreferredDeviceForStrategy(product_strategy_t strategy,
+                                                   AudioDeviceTypeAddr &device) = 0;
 };
 
 
diff --git a/media/libaudiofoundation/include/media/AudioDeviceTypeAddr.h b/media/libaudiofoundation/include/media/AudioDeviceTypeAddr.h
index 5e5e762..acc37ca 100644
--- a/media/libaudiofoundation/include/media/AudioDeviceTypeAddr.h
+++ b/media/libaudiofoundation/include/media/AudioDeviceTypeAddr.h
@@ -37,6 +37,8 @@
 
     bool equals(const AudioDeviceTypeAddr& other) const;
 
+    AudioDeviceTypeAddr& operator= (const AudioDeviceTypeAddr&) = default;
+
     void reset();
 
     status_t readFromParcel(const Parcel *parcel) override;
diff --git a/media/libaudiohal/impl/DeviceHalHidl.cpp b/media/libaudiohal/impl/DeviceHalHidl.cpp
index d52416c..342ceb6 100644
--- a/media/libaudiohal/impl/DeviceHalHidl.cpp
+++ b/media/libaudiohal/impl/DeviceHalHidl.cpp
@@ -289,6 +289,10 @@
         sinkMetadata.tracks[0].destination.device(std::move(hidlOutputDevice));
     }
 #endif
+#if MAJOR_VERSION <= 5
+    // Some flags were specific to framework and must not leak to the HAL.
+    flags = static_cast<audio_input_flags_t>(flags & ~AUDIO_INPUT_FLAG_DIRECT);
+#endif
     Return<void> ret = mDevice->openInputStream(
             handle,
             hidlDevice,
@@ -319,25 +323,45 @@
     if (mDevice == 0) return NO_INIT;
     if (patch == nullptr) return BAD_VALUE;
 
+#if MAJOR_VERSION < 6
     if (*patch != AUDIO_PATCH_HANDLE_NONE) {
         status_t status = releaseAudioPatch(*patch);
         ALOGW_IF(status != NO_ERROR, "%s error %d releasing patch handle %d",
             __func__, status, *patch);
+        *patch = AUDIO_PATCH_HANDLE_NONE;
     }
+#endif
 
     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);
+    Result retval = Result::OK;
+    Return<void> ret;
+    std::string methodName = "createAudioPatch";
+    if (*patch == AUDIO_PATCH_HANDLE_NONE) {  // always true for MAJOR_VERSION < 6
+        ret = mDevice->createAudioPatch(
+                hidlSources, hidlSinks,
+                [&](Result r, AudioPatchHandle hidlPatch) {
+                    retval = r;
+                    if (retval == Result::OK) {
+                        *patch = static_cast<audio_patch_handle_t>(hidlPatch);
+                    }
+                });
+    } else {
+#if MAJOR_VERSION >= 6
+        ret = mDevice->updateAudioPatch(
+                *patch,
+                hidlSources, hidlSinks,
+                [&](Result r, AudioPatchHandle hidlPatch) {
+                    retval = r;
+                    if (retval == Result::OK) {
+                        *patch = static_cast<audio_patch_handle_t>(hidlPatch);
+                    }
+                });
+        methodName = "updateAudioPatch";
+#endif
+    }
+    return processReturn(methodName.c_str(), ret, retval);
 }
 
 status_t DeviceHalHidl::releaseAudioPatch(audio_patch_handle_t patch) {
diff --git a/media/libaudiohal/impl/EffectsFactoryHalHidl.cpp b/media/libaudiohal/impl/EffectsFactoryHalHidl.cpp
index ba7b195..867b72d 100644
--- a/media/libaudiohal/impl/EffectsFactoryHalHidl.cpp
+++ b/media/libaudiohal/impl/EffectsFactoryHalHidl.cpp
@@ -105,12 +105,26 @@
 
 status_t EffectsFactoryHalHidl::createEffect(
         const effect_uuid_t *pEffectUuid, int32_t sessionId, int32_t ioId,
-        sp<EffectHalInterface> *effect) {
+        int32_t deviceId __unused, 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(
+    Return<void> ret;
+#if MAJOR_VERSION >= 6
+    ret = mEffectsFactory->createEffect(
+            hidlUuid, sessionId, ioId, deviceId,
+            [&](Result r, const sp<IEffect>& result, uint64_t effectId) {
+                retval = r;
+                if (retval == Result::OK) {
+                    *effect = new EffectHalHidl(result, effectId);
+                }
+            });
+#else
+    if (sessionId == AUDIO_SESSION_DEVICE && ioId == AUDIO_IO_HANDLE_NONE) {
+        return INVALID_OPERATION;
+    }
+    ret = mEffectsFactory->createEffect(
             hidlUuid, sessionId, ioId,
             [&](Result r, const sp<IEffect>& result, uint64_t effectId) {
                 retval = r;
@@ -118,6 +132,7 @@
                     *effect = new EffectHalHidl(result, effectId);
                 }
             });
+#endif
     if (ret.isOk()) {
         if (retval == Result::OK) return OK;
         else if (retval == Result::INVALID_ARGUMENTS) return NAME_NOT_FOUND;
diff --git a/media/libaudiohal/impl/EffectsFactoryHalHidl.h b/media/libaudiohal/impl/EffectsFactoryHalHidl.h
index 2828513..dece1bb 100644
--- a/media/libaudiohal/impl/EffectsFactoryHalHidl.h
+++ b/media/libaudiohal/impl/EffectsFactoryHalHidl.h
@@ -49,7 +49,7 @@
     // 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,
+            int32_t sessionId, int32_t ioId, int32_t deviceId,
             sp<EffectHalInterface> *effect);
 
     virtual status_t dumpEffects(int fd);
diff --git a/media/libaudiohal/include/media/audiohal/EffectsFactoryHalInterface.h b/media/libaudiohal/include/media/audiohal/EffectsFactoryHalInterface.h
index 316a46c..3a76f9f 100644
--- a/media/libaudiohal/include/media/audiohal/EffectsFactoryHalInterface.h
+++ b/media/libaudiohal/include/media/audiohal/EffectsFactoryHalInterface.h
@@ -41,7 +41,7 @@
     // 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,
+            int32_t sessionId, int32_t ioId, int32_t deviceId,
             sp<EffectHalInterface> *effect) = 0;
 
     virtual status_t dumpEffects(int fd) = 0;
diff --git a/media/libaudioprocessing/BufferProviders.cpp b/media/libaudioprocessing/BufferProviders.cpp
index 21d25e1..6d31c12 100644
--- a/media/libaudioprocessing/BufferProviders.cpp
+++ b/media/libaudioprocessing/BufferProviders.cpp
@@ -164,6 +164,7 @@
     if (mEffectsFactory->createEffect(&sDwnmFxDesc.uuid,
                                       sessionId,
                                       SESSION_ID_INVALID_AND_IGNORED,
+                                      AUDIO_PORT_HANDLE_NONE,
                                       &mDownmixInterface) != 0) {
          ALOGE("DownmixerBufferProvider() error creating downmixer effect");
          mDownmixInterface.clear();
diff --git a/media/libeffects/config/src/EffectsConfig.cpp b/media/libeffects/config/src/EffectsConfig.cpp
index f39eb0c..218249d 100644
--- a/media/libeffects/config/src/EffectsConfig.cpp
+++ b/media/libeffects/config/src/EffectsConfig.cpp
@@ -100,6 +100,7 @@
         {AUDIO_STREAM_ENFORCED_AUDIBLE, "enforced_audible"},
         {AUDIO_STREAM_DTMF, "dtmf"},
         {AUDIO_STREAM_TTS, "tts"},
+        {AUDIO_STREAM_ASSISTANT, "assistant"},
 };
 
 /** All input stream types which support effects.
diff --git a/media/libeffects/factory/EffectsFactory.c b/media/libeffects/factory/EffectsFactory.c
index c1ce513..dcdf634 100644
--- a/media/libeffects/factory/EffectsFactory.c
+++ b/media/libeffects/factory/EffectsFactory.c
@@ -254,7 +254,8 @@
     return ret;
 }
 
-int EffectCreate(const effect_uuid_t *uuid, int32_t sessionId, int32_t ioId, effect_handle_t *pHandle)
+int doEffectCreate(const effect_uuid_t *uuid, int32_t sessionId, int32_t ioId, int32_t deviceId,
+        effect_handle_t *pHandle)
 {
     list_elem_t *e = gLibraryList;
     lib_entry_t *l = NULL;
@@ -268,9 +269,9 @@
     }
 
     ALOGV("EffectCreate() UUID: %08X-%04X-%04X-%04X-%02X%02X%02X%02X%02X%02X\n",
-            uuid->timeLow, uuid->timeMid, uuid->timeHiAndVersion,
-            uuid->clockSeq, uuid->node[0], uuid->node[1],uuid->node[2],
-            uuid->node[3],uuid->node[4],uuid->node[5]);
+          uuid->timeLow, uuid->timeMid, uuid->timeHiAndVersion,
+          uuid->clockSeq, uuid->node[0], uuid->node[1], uuid->node[2],
+          uuid->node[3], uuid->node[4], uuid->node[5]);
 
     ret = init();
 
@@ -282,17 +283,29 @@
     pthread_mutex_lock(&gLibLock);
 
     ret = findEffect(NULL, uuid, &l, &d);
-    if (ret < 0){
+    if (ret < 0) {
         // Sub effects are not associated with the library->effects,
         // so, findEffect will fail. Search for the effect in gSubEffectList.
         ret = findSubEffect(uuid, &l, &d);
-        if (ret < 0 ) {
+        if (ret < 0) {
             goto exit;
         }
     }
 
     // create effect in library
-    ret = l->desc->create_effect(uuid, sessionId, ioId, &itfe);
+    if (sessionId == AUDIO_SESSION_DEVICE) {
+        if (l->desc->version >= EFFECT_LIBRARY_API_VERSION_3_1) {
+            ALOGI("EffectCreate() create_effect_3_1");
+            ret = l->desc->create_effect_3_1(uuid, sessionId, ioId, deviceId, &itfe);
+        } else {
+            ALOGE("EffectCreate() cannot create device effect on library with API version < 3.1");
+            ret = -ENOSYS;
+        }
+    } else {
+        ALOGI("EffectCreate() create_effect");
+        ret = l->desc->create_effect(uuid, sessionId, ioId, &itfe);
+    }
+
     if (ret != 0) {
         ALOGW("EffectCreate() library %s: could not create fx %s, error %d", l->name, d->name, ret);
         goto exit;
@@ -324,6 +337,16 @@
     return ret;
 }
 
+int EffectCreate(const effect_uuid_t *uuid, int32_t sessionId, int32_t ioId,
+        effect_handle_t *pHandle) {
+    return doEffectCreate(uuid, sessionId, ioId, AUDIO_PORT_HANDLE_NONE, pHandle);
+}
+
+int EffectCreateOnDevice(const effect_uuid_t *uuid, int32_t deviceId, int32_t ioId,
+        effect_handle_t *pHandle) {
+    return doEffectCreate(uuid, AUDIO_SESSION_DEVICE, ioId, deviceId, pHandle);
+}
+
 int EffectRelease(effect_handle_t handle)
 {
     effect_entry_t *fx;
diff --git a/media/libeffects/factory/EffectsFactory.h b/media/libeffects/factory/EffectsFactory.h
index 29dbc9c..1936343 100644
--- a/media/libeffects/factory/EffectsFactory.h
+++ b/media/libeffects/factory/EffectsFactory.h
@@ -27,6 +27,8 @@
 extern "C" {
 #endif
 
+#define EFFECT_LIBRARY_API_VERSION_CURRENT EFFECT_LIBRARY_API_VERSION_3_1
+
 #define PROPERTY_IGNORE_EFFECTS "ro.audio.ignore_effects"
 
 typedef struct list_elem_s {
diff --git a/media/libeffects/factory/EffectsXmlConfigLoader.cpp b/media/libeffects/factory/EffectsXmlConfigLoader.cpp
index 052a88b..505be7c 100644
--- a/media/libeffects/factory/EffectsXmlConfigLoader.cpp
+++ b/media/libeffects/factory/EffectsXmlConfigLoader.cpp
@@ -94,7 +94,7 @@
     }
 
     uint32_t majorVersion = EFFECT_API_VERSION_MAJOR(description->version);
-    uint32_t expectedMajorVersion = EFFECT_API_VERSION_MAJOR(EFFECT_LIBRARY_API_VERSION);
+    uint32_t expectedMajorVersion = EFFECT_API_VERSION_MAJOR(EFFECT_LIBRARY_API_VERSION_CURRENT);
     if (majorVersion != expectedMajorVersion) {
         ALOGE("Unsupported major version %#08x, expected %#08x for library %s",
               majorVersion, expectedMajorVersion, path);
diff --git a/media/libeffects/factory/include/media/EffectsFactoryApi.h b/media/libeffects/factory/include/media/EffectsFactoryApi.h
index a5a12eb..8f7239e 100644
--- a/media/libeffects/factory/include/media/EffectsFactoryApi.h
+++ b/media/libeffects/factory/include/media/EffectsFactoryApi.h
@@ -119,6 +119,36 @@
 
 ////////////////////////////////////////////////////////////////////////////////
 //
+//    Function:       EffectCreateOnDevice
+//
+//    Description:    Same as EffectCreate but uesed when creating an effect attached to a
+//                 particular audio device instance
+//
+//    Input:
+//          pEffectUuid:    pointer to the effect uuid.
+//          deviceId:  identifies the sink or source device this effect is directed to in
+//              audio HAL. Must be specified if sessionId is AUDIO_SESSION_DEVICE.
+//              deviceId is the audio_port_handle_t used for the device when the audio
+//              patch is created at the audio HAL.//
+//          ioId:   identifies the output or input stream this effect is directed to at audio HAL.
+//              For future use especially with tunneled HW accelerated effects
+//    Input/Output:
+//          pHandle:        address where to return the effect handle.
+//
+//    Output:
+//        returned value:    0          successful operation.
+//                          -ENODEV     factory failed to initialize
+//                          -EINVAL     invalid pEffectUuid or pHandle
+//                          -ENOENT     no effect with this uuid found
+//        *pHandle:         updated with the effect handle.
+//
+////////////////////////////////////////////////////////////////////////////////
+ANDROID_API
+int EffectCreateOnDevice(const effect_uuid_t *pEffectUuid, int32_t deviceId, int32_t ioId,
+        effect_handle_t *pHandle);
+
+////////////////////////////////////////////////////////////////////////////////
+//
 //    Function:       EffectRelease
 //
 //    Description:    Releases the effect engine whose handle is given as argument.
diff --git a/media/libheif/HeifDecoderImpl.cpp b/media/libheif/HeifDecoderImpl.cpp
index 9d79f89..2208eca 100644
--- a/media/libheif/HeifDecoderImpl.cpp
+++ b/media/libheif/HeifDecoderImpl.cpp
@@ -26,7 +26,7 @@
 #include <binder/MemoryDealer.h>
 #include <drm/drm_framework_common.h>
 #include <media/mediametadataretriever.h>
-#include <media/MediaSource.h>
+#include <media/stagefright/MediaSource.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <private/media/VideoFrame.h>
 #include <utils/Log.h>
diff --git a/media/libmedia/IMediaRecorder.cpp b/media/libmedia/IMediaRecorder.cpp
index a354ce1..ac86f72 100644
--- a/media/libmedia/IMediaRecorder.cpp
+++ b/media/libmedia/IMediaRecorder.cpp
@@ -67,7 +67,9 @@
     GET_ACTIVE_MICROPHONES,
     GET_PORT_ID,
     SET_PREFERRED_MICROPHONE_DIRECTION,
-    SET_PREFERRED_MICROPHONE_FIELD_DIMENSION
+    SET_PREFERRED_MICROPHONE_FIELD_DIMENSION,
+    SET_PRIVACY_SENSITIVE,
+    GET_PRIVACY_SENSITIVE
 };
 
 class BpMediaRecorder: public BpInterface<IMediaRecorder>
@@ -151,6 +153,36 @@
         return reply.readInt32();
     }
 
+    status_t setPrivacySensitive(bool privacySensitive)
+    {
+        ALOGV("%s(%s)", __func__, privacySensitive ? "true" : "false");
+        Parcel data, reply;
+        data.writeInterfaceToken(IMediaRecorder::getInterfaceDescriptor());
+        data.writeInt32(privacySensitive ? 1 : 0);
+        status_t status = remote()->transact(SET_PRIVACY_SENSITIVE, data, &reply);
+        if (status != NO_ERROR) {
+            return status;
+        }
+        return reply.readInt32();
+    }
+
+    status_t isPrivacySensitive(bool *privacySensitive) const
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IMediaRecorder::getInterfaceDescriptor());
+        *privacySensitive = false;
+        status_t status = remote()->transact(GET_PRIVACY_SENSITIVE, data, &reply);
+        if (status != NO_ERROR) {
+            return status;
+        }
+        status = reply.readInt32();
+        if (status == NO_ERROR) {
+            *privacySensitive = reply.readInt32() == 1;
+        }
+        ALOGV("%s status %d enabled: %s", __func__, status, *privacySensitive ? "true" : "false");
+        return status;
+    }
+
     status_t setOutputFormat(int of)
     {
         ALOGV("setOutputFormat(%d)", of);
@@ -537,6 +569,24 @@
             reply->writeInt32(setAudioSource(as));
             return NO_ERROR;
         } break;
+        case SET_PRIVACY_SENSITIVE: {
+            ALOGV("SET_PRIVACY_SENSITIVE");
+            CHECK_INTERFACE(IMediaRecorder, data, reply);
+            bool privacySensitive = data.readInt32() == 1;
+            reply->writeInt32(setPrivacySensitive(privacySensitive));
+            return NO_ERROR;
+        } break;
+        case GET_PRIVACY_SENSITIVE: {
+            ALOGV("GET_PRIVACY_SENSITIVE");
+            CHECK_INTERFACE(IMediaRecorder, data, reply);
+            bool privacySensitive = false;
+            status_t status = isPrivacySensitive(&privacySensitive);
+            reply->writeInt32(status);
+            if (status == NO_ERROR) {
+                reply->writeInt32(privacySensitive ? 1 : 0);
+            }
+            return NO_ERROR;
+        } break;
         case SET_OUTPUT_FORMAT: {
             ALOGV("SET_OUTPUT_FORMAT");
             CHECK_INTERFACE(IMediaRecorder, data, reply);
diff --git a/media/libmedia/IMediaSource.cpp b/media/libmedia/IMediaSource.cpp
index 50826c5..b18571f 100644
--- a/media/libmedia/IMediaSource.cpp
+++ b/media/libmedia/IMediaSource.cpp
@@ -26,7 +26,7 @@
 #include <media/IMediaSource.h>
 #include <media/stagefright/MediaBuffer.h>
 #include <media/stagefright/MediaBufferGroup.h>
-#include <media/MediaSource.h>
+#include <media/stagefright/MediaSource.h>
 #include <media/stagefright/MetaData.h>
 
 namespace android {
diff --git a/media/libmedia/include/media/CounterMetric.h b/media/libmedia/include/media/CounterMetric.h
index b53470d..8bd4049 100644
--- a/media/libmedia/include/media/CounterMetric.h
+++ b/media/libmedia/include/media/CounterMetric.h
@@ -20,7 +20,7 @@
 #include <map>
 #include <string>
 
-#include <media/MediaAnalyticsItem.h>
+#include <media/MediaMetricsItem.h>
 #include <utils/Log.h>
 
 namespace android {
diff --git a/media/libmedia/include/media/EventMetric.h b/media/libmedia/include/media/EventMetric.h
index dbb736a..d6f3402 100644
--- a/media/libmedia/include/media/EventMetric.h
+++ b/media/libmedia/include/media/EventMetric.h
@@ -16,7 +16,7 @@
 #ifndef ANDROID_EVENT_METRIC_H_
 #define ANDROID_EVENT_METRIC_H_
 
-#include <media/MediaAnalyticsItem.h>
+#include <media/MediaMetricsItem.h>
 #include <utils/Timers.h>
 
 namespace android {
diff --git a/media/libmedia/include/media/IMediaPlayer.h b/media/libmedia/include/media/IMediaPlayer.h
index 97a998e..3c13540 100644
--- a/media/libmedia/include/media/IMediaPlayer.h
+++ b/media/libmedia/include/media/IMediaPlayer.h
@@ -23,7 +23,7 @@
 #include <utils/KeyedVector.h>
 #include <system/audio.h>
 
-#include <media/MediaSource.h>
+#include <media/stagefright/MediaSource.h>
 #include <media/VolumeShaper.h>
 
 // Fwd decl to make sure everyone agrees that the scope of struct sockaddr_in is
diff --git a/media/libmedia/include/media/IMediaRecorder.h b/media/libmedia/include/media/IMediaRecorder.h
index f9c557c..651bd5e 100644
--- a/media/libmedia/include/media/IMediaRecorder.h
+++ b/media/libmedia/include/media/IMediaRecorder.h
@@ -44,6 +44,8 @@
     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 setPrivacySensitive(bool privacySensitive) = 0;
+    virtual status_t isPrivacySensitive(bool *privacySensitive) const = 0;
     virtual status_t setOutputFormat(int of) = 0;
     virtual status_t setVideoEncoder(int ve) = 0;
     virtual status_t setAudioEncoder(int ae) = 0;
diff --git a/media/libmedia/include/media/IMediaSource.h b/media/libmedia/include/media/IMediaSource.h
index 381df24..f3fa39b 100644
--- a/media/libmedia/include/media/IMediaSource.h
+++ b/media/libmedia/include/media/IMediaSource.h
@@ -22,7 +22,7 @@
 
 #include <binder/IInterface.h>
 #include <binder/IMemory.h>
-#include <media/MediaSource.h>
+#include <media/stagefright/MediaSource.h>
 #include <media/stagefright/MediaBuffer.h>
 #include <media/stagefright/MediaErrors.h>
 
diff --git a/media/libmedia/include/media/MediaRecorderBase.h b/media/libmedia/include/media/MediaRecorderBase.h
index a2dff31..8493f64 100644
--- a/media/libmedia/include/media/MediaRecorderBase.h
+++ b/media/libmedia/include/media/MediaRecorderBase.h
@@ -39,6 +39,8 @@
 
     virtual status_t init() = 0;
     virtual status_t setAudioSource(audio_source_t as) = 0;
+    virtual status_t setPrivacySensitive(bool privacySensitive) = 0 ;
+    virtual status_t isPrivacySensitive(bool *privacySensitive) const = 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;
@@ -79,6 +81,7 @@
 
 
 protected:
+
     String16 mOpPackageName;
 
 private:
diff --git a/media/libmedia/include/media/MidiIoWrapper.h b/media/libmedia/include/media/MidiIoWrapper.h
index b19d49e..7beb619 100644
--- a/media/libmedia/include/media/MidiIoWrapper.h
+++ b/media/libmedia/include/media/MidiIoWrapper.h
@@ -19,8 +19,6 @@
 
 #include <libsonivox/eas_types.h>
 
-#include <media/DataSourceBase.h>
-
 namespace android {
 
 struct CDataSource;
diff --git a/media/libmedia/include/media/NdkWrapper.h b/media/libmedia/include/media/NdkWrapper.h
index 8a417f6..39c0574 100644
--- a/media/libmedia/include/media/NdkWrapper.h
+++ b/media/libmedia/include/media/NdkWrapper.h
@@ -19,7 +19,7 @@
 #define NDK_WRAPPER_H_
 
 #include <media/DataSource.h>
-#include <media/MediaSource.h>
+#include <media/stagefright/MediaSource.h>
 #include <media/NdkMediaDataSource.h>
 #include <media/NdkMediaError.h>
 #include <media/NdkMediaExtractor.h>
diff --git a/media/libmedia/include/media/mediarecorder.h b/media/libmedia/include/media/mediarecorder.h
index 2dd4b7f..6e2d94d 100644
--- a/media/libmedia/include/media/mediarecorder.h
+++ b/media/libmedia/include/media/mediarecorder.h
@@ -236,6 +236,8 @@
     status_t    setPreviewSurface(const sp<IGraphicBufferProducer>& surface);
     status_t    setVideoSource(int vs);
     status_t    setAudioSource(int as);
+    status_t    setPrivacySensitive(bool privacySensitive);
+    status_t    isPrivacySensitive(bool *privacySensitive) const;
     status_t    setOutputFormat(int of);
     status_t    setVideoEncoder(int ve);
     status_t    setAudioEncoder(int ae);
diff --git a/media/libmedia/mediarecorder.cpp b/media/libmedia/mediarecorder.cpp
index 4570af9..70655d5 100644
--- a/media/libmedia/mediarecorder.cpp
+++ b/media/libmedia/mediarecorder.cpp
@@ -178,6 +178,47 @@
     return ret;
 }
 
+status_t MediaRecorder::setPrivacySensitive(bool privacySensitive)
+{
+    ALOGV("%s(%s)", __func__, privacySensitive ? "true" : "false");
+    if (mMediaRecorder == NULL) {
+        ALOGE("%s: media recorder is not initialized yet", __func__);
+        return INVALID_OPERATION;
+    }
+
+    if (!(mCurrentState & MEDIA_RECORDER_INITIALIZED) || !mIsAudioSourceSet) {
+        ALOGE("%s called in an invalid state(%d) or audio source not (%d)",
+            __func__, mCurrentState, mIsAudioSourceSet);
+        return INVALID_OPERATION;
+    }
+
+    status_t ret = mMediaRecorder->setPrivacySensitive(privacySensitive);
+    if (OK != ret) {
+        ALOGV("%s failed: %d", __func__, ret);
+        mCurrentState = MEDIA_RECORDER_ERROR;
+        return ret;
+    }
+    return ret;
+}
+
+status_t MediaRecorder::isPrivacySensitive(bool *privacySensitive) const
+{
+    if (mMediaRecorder == NULL) {
+        ALOGE("%s: media recorder is not initialized yet", __func__);
+        return INVALID_OPERATION;
+    }
+
+    if (!(mCurrentState & MEDIA_RECORDER_INITIALIZED) || !mIsAudioSourceSet) {
+        ALOGE("%s called in an invalid state(%d) or audio source not (%d)",
+            __func__, mCurrentState, mIsAudioSourceSet);
+        return INVALID_OPERATION;
+    }
+
+    status_t ret = mMediaRecorder->isPrivacySensitive(privacySensitive);
+    ALOGV("%s status: %d eanbled %s", __func__, ret, *privacySensitive ? "enabled" : "disabled");
+    return ret;
+}
+
 status_t MediaRecorder::setOutputFormat(int of)
 {
     ALOGV("setOutputFormat(%d)", of);
diff --git a/media/libmediahelper/TypeConverter.cpp b/media/libmediahelper/TypeConverter.cpp
index 817aadf..fc037a6 100644
--- a/media/libmediahelper/TypeConverter.cpp
+++ b/media/libmediahelper/TypeConverter.cpp
@@ -312,6 +312,7 @@
     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_ASSISTANT),
     MAKE_STRING_FROM_ENUM(AUDIO_STREAM_REROUTING),
     MAKE_STRING_FROM_ENUM(AUDIO_STREAM_PATCH),
     TERMINATOR
@@ -358,6 +359,7 @@
     MAKE_STRING_FROM_ENUM(AUDIO_USAGE_GAME),
     MAKE_STRING_FROM_ENUM(AUDIO_USAGE_VIRTUAL_SOURCE),
     MAKE_STRING_FROM_ENUM(AUDIO_USAGE_ASSISTANT),
+    MAKE_STRING_FROM_ENUM(AUDIO_USAGE_CALL_ASSISTANT),
     TERMINATOR
 };
 
@@ -395,6 +397,7 @@
     MAKE_STRING_FROM_ENUM(AUDIO_FLAG_DEEP_BUFFER),
     MAKE_STRING_FROM_ENUM(AUDIO_FLAG_NO_MEDIA_PROJECTION),
     MAKE_STRING_FROM_ENUM(AUDIO_FLAG_NO_SYSTEM_CAPTURE),
+    MAKE_STRING_FROM_ENUM(AUDIO_FLAG_CAPTURE_PRIVATE),
     TERMINATOR
 };
 
diff --git a/media/libmediametrics/Android.bp b/media/libmediametrics/Android.bp
index f599190..7fd5408 100644
--- a/media/libmediametrics/Android.bp
+++ b/media/libmediametrics/Android.bp
@@ -2,8 +2,8 @@
     name: "libmediametrics",
 
     srcs: [
-        "IMediaAnalyticsService.cpp",
-        "MediaAnalyticsItem.cpp",
+        "IMediaMetricsService.cpp",
+        "MediaMetricsItem.cpp",
         "MediaMetrics.cpp",
     ],
 
diff --git a/media/libmediametrics/IMediaAnalyticsService.cpp b/media/libmediametrics/IMediaAnalyticsService.cpp
deleted file mode 100644
index 4324f6d..0000000
--- a/media/libmediametrics/IMediaAnalyticsService.cpp
+++ /dev/null
@@ -1,104 +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.
- */
-
-#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 <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>
-
-namespace android {
-
-enum {
-    SUBMIT_ITEM_ONEWAY = IBinder::FIRST_CALL_TRANSACTION,
-};
-
-class BpMediaAnalyticsService: public BpInterface<IMediaAnalyticsService>
-{
-public:
-    explicit BpMediaAnalyticsService(const sp<IBinder>& impl)
-        : BpInterface<IMediaAnalyticsService>(impl)
-    {
-    }
-
-    status_t submit(MediaAnalyticsItem *item) override
-    {
-        if (item == nullptr) {
-            return BAD_VALUE;
-        }
-        ALOGV("%s: (ONEWAY) item=%s", __func__, item->toString().c_str());
-
-        Parcel data;
-        data.writeInterfaceToken(IMediaAnalyticsService::getInterfaceDescriptor());
-
-        status_t status = item->writeToParcel(&data);
-        if (status != NO_ERROR) { // assume failure logged in item
-            return status;
-        }
-
-        status = remote()->transact(
-                SUBMIT_ITEM_ONEWAY, data, nullptr /* reply */, IBinder::FLAG_ONEWAY);
-        ALOGW_IF(status != NO_ERROR, "%s: bad response from service for submit, status=%d",
-                __func__, status);
-        return status;
-    }
-};
-
-IMPLEMENT_META_INTERFACE(MediaAnalyticsService, "android.media.IMediaAnalyticsService");
-
-// ----------------------------------------------------------------------
-
-status_t BnMediaAnalyticsService::onTransact(
-    uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
-{
-    const int clientPid = IPCThreadState::self()->getCallingPid();
-
-    switch (code) {
-    case SUBMIT_ITEM_ONEWAY: {
-        CHECK_INTERFACE(IMediaAnalyticsService, data, reply);
-
-        MediaAnalyticsItem * const item = MediaAnalyticsItem::create();
-        status_t status = item->readFromParcel(data);
-        if (status != NO_ERROR) { // assume failure logged in item
-            return status;
-        }
-        // TODO: remove this setPid.
-        item->setPid(clientPid);
-        status = submitInternal(item, true /* release */);
-        // assume failure logged by submitInternal
-        return NO_ERROR;
-    } break;
-
-    default:
-        return BBinder::onTransact(code, data, reply, flags);
-    }
-}
-
-// ----------------------------------------------------------------------------
-
-} // namespace android
diff --git a/media/libmediametrics/IMediaMetricsService.cpp b/media/libmediametrics/IMediaMetricsService.cpp
new file mode 100644
index 0000000..b5675e6
--- /dev/null
+++ b/media/libmediametrics/IMediaMetricsService.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_TAG "MediaMetrics"
+
+#include <stdint.h>
+#include <inttypes.h>
+#include <sys/types.h>
+
+#include <binder/Parcel.h>
+#include <binder/IMemory.h>
+#include <binder/IPCThreadState.h>
+
+#include <utils/Errors.h>  // for status_t
+#include <utils/List.h>
+#include <utils/Log.h>
+#include <utils/String8.h>
+
+#include <media/MediaMetricsItem.h>
+#include <media/IMediaMetricsService.h>
+
+namespace android {
+
+// TODO: Currently ONE_WAY transactions, make both ONE_WAY and synchronous options.
+
+enum {
+    SUBMIT_ITEM = IBinder::FIRST_CALL_TRANSACTION,
+    SUBMIT_BUFFER,
+};
+
+class BpMediaMetricsService: public BpInterface<IMediaMetricsService>
+{
+public:
+    explicit BpMediaMetricsService(const sp<IBinder>& impl)
+        : BpInterface<IMediaMetricsService>(impl)
+    {
+    }
+
+    status_t submit(mediametrics::Item *item) override
+    {
+        if (item == nullptr) {
+            return BAD_VALUE;
+        }
+        ALOGV("%s: (ONEWAY) item=%s", __func__, item->toString().c_str());
+
+        Parcel data;
+        data.writeInterfaceToken(IMediaMetricsService::getInterfaceDescriptor());
+
+        status_t status = item->writeToParcel(&data);
+        if (status != NO_ERROR) { // assume failure logged in item
+            return status;
+        }
+
+        status = remote()->transact(
+                SUBMIT_ITEM, data, nullptr /* reply */, IBinder::FLAG_ONEWAY);
+        ALOGW_IF(status != NO_ERROR, "%s: bad response from service for submit, status=%d",
+                __func__, status);
+        return status;
+    }
+
+    status_t submitBuffer(const char *buffer, size_t length) override
+    {
+        if (buffer == nullptr || length > INT32_MAX) {
+            return BAD_VALUE;
+        }
+        ALOGV("%s: (ONEWAY) length:%zu", __func__, length);
+
+        Parcel data;
+        data.writeInterfaceToken(IMediaMetricsService::getInterfaceDescriptor());
+
+        status_t status = data.writeInt32(length)
+                ?: data.write((uint8_t*)buffer, length);
+        if (status != NO_ERROR) {
+            return status;
+        }
+
+        status = remote()->transact(
+                SUBMIT_BUFFER, data, nullptr /* reply */, IBinder::FLAG_ONEWAY);
+        ALOGW_IF(status != NO_ERROR, "%s: bad response from service for submit, status=%d",
+                __func__, status);
+        return status;
+    }
+};
+
+IMPLEMENT_META_INTERFACE(MediaMetricsService, "android.media.IMediaMetricsService");
+
+// ----------------------------------------------------------------------
+
+status_t BnMediaMetricsService::onTransact(
+    uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
+{
+    switch (code) {
+    case SUBMIT_ITEM: {
+        CHECK_INTERFACE(IMediaMetricsService, data, reply);
+
+        mediametrics::Item * const item = mediametrics::Item::create();
+        status_t status = item->readFromParcel(data);
+        if (status != NO_ERROR) { // assume failure logged in item
+            return status;
+        }
+        status = submitInternal(item, true /* release */);
+        // assume failure logged by submitInternal
+        return NO_ERROR;
+    }
+    case SUBMIT_BUFFER: {
+        CHECK_INTERFACE(IMediaMetricsService, data, reply);
+        int32_t length;
+        status_t status = data.readInt32(&length);
+        if (status != NO_ERROR || length <= 0) {
+            return BAD_VALUE;
+        }
+        const void *ptr = data.readInplace(length);
+        if (ptr == nullptr) {
+            return BAD_VALUE;
+        }
+        status = submitBuffer(static_cast<const char *>(ptr), length);
+        // assume failure logged by submitBuffer
+        return NO_ERROR;
+    }
+
+    default:
+        return BBinder::onTransact(code, data, reply, flags);
+    }
+}
+
+// ----------------------------------------------------------------------------
+
+} // namespace android
diff --git a/media/libmediametrics/MediaAnalyticsItem.cpp b/media/libmediametrics/MediaAnalyticsItem.cpp
deleted file mode 100644
index 14dce79..0000000
--- a/media/libmediametrics/MediaAnalyticsItem.cpp
+++ /dev/null
@@ -1,1046 +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.
- */
-
-#define LOG_TAG "MediaAnalyticsItem"
-
-#include <inttypes.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/types.h>
-
-#include <mutex>
-#include <set>
-
-#include <binder/Parcel.h>
-#include <utils/Errors.h>
-#include <utils/Log.h>
-#include <utils/SortedVector.h>
-#include <utils/threads.h>
-
-#include <binder/IServiceManager.h>
-#include <media/IMediaAnalyticsService.h>
-#include <media/MediaAnalyticsItem.h>
-#include <private/android_filesystem_config.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
-
-MediaAnalyticsItem* MediaAnalyticsItem::convert(mediametrics_handle_t handle) {
-    MediaAnalyticsItem *item = (android::MediaAnalyticsItem *) handle;
-    return item;
-}
-
-mediametrics_handle_t MediaAnalyticsItem::convert(MediaAnalyticsItem *item ) {
-    mediametrics_handle_t handle = (mediametrics_handle_t) item;
-    return handle;
-}
-
-MediaAnalyticsItem::~MediaAnalyticsItem() {
-    if (DEBUG_ALLOCATIONS) {
-        ALOGD("Destroy  MediaAnalyticsItem @ %p", this);
-    }
-    clear();
-}
-
-void MediaAnalyticsItem::clear() {
-
-    // clean allocated storage from key
-    mKey.clear();
-
-    // clean attributes
-    // contents of the attributes
-    for (size_t i = 0 ; i < mPropCount; i++ ) {
-        mProps[i].clear();
-    }
-    // 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->mPkgName = this->mPkgName;
-        dst->mPkgVersionCode = this->mPkgVersionCode;
-        dst->mTimestamp = this->mTimestamp;
-
-        // properties aka attributes
-        dst->growProps(this->mPropCount);
-        for(size_t i=0;i<mPropCount;i++) {
-            dst->mProps[i] = this->mProps[i];
-        }
-        dst->mPropCount = this->mPropCount;
-    }
-
-    return dst;
-}
-
-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;
-}
-
-MediaAnalyticsItem &MediaAnalyticsItem::setPkgName(const std::string &pkgName) {
-    mPkgName = pkgName;
-    return *this;
-}
-
-MediaAnalyticsItem &MediaAnalyticsItem::setPkgVersionCode(int64_t pkgVersionCode) {
-    mPkgVersionCode = pkgVersionCode;
-    return *this;
-}
-
-int64_t MediaAnalyticsItem::getPkgVersionCode() const {
-    return mPkgVersionCode;
-}
-
-
-// find the proper entry in the list
-size_t MediaAnalyticsItem::findPropIndex(const char *name) const
-{
-    size_t i = 0;
-    for (; i < mPropCount; i++) {
-        if (mProps[i].isNamed(name)) break;
-    }
-    return i;
-}
-
-MediaAnalyticsItem::Prop *MediaAnalyticsItem::findProp(const char *name) const {
-    const size_t i = findPropIndex(name);
-    if (i < mPropCount) {
-        return &mProps[i];
-    }
-    return nullptr;
-}
-
-// consider this "find-or-allocate".
-// caller validates type and uses clearPropValue() accordingly
-MediaAnalyticsItem::Prop *MediaAnalyticsItem::allocateProp(const char *name) {
-    const size_t i = findPropIndex(name);
-    if (i < mPropCount) {
-        return &mProps[i]; // already have it, return
-    }
-
-    Prop *prop = allocateProp(); // get a new prop
-    if (prop == nullptr) return nullptr;
-    prop->setName(name);
-    return prop;
-}
-
-MediaAnalyticsItem::Prop *MediaAnalyticsItem::allocateProp() {
-    if (mPropCount == mPropSize && growProps() == false) {
-        ALOGE("%s: failed allocation for new properties", __func__);
-        return nullptr;
-    }
-    return &mProps[mPropCount++];
-}
-
-// used within the summarizers; return whether property existed
-bool MediaAnalyticsItem::removeProp(const char *name) {
-    const size_t i = findPropIndex(name);
-    if (i < mPropCount) {
-        mProps[i].clear();
-        if (i != mPropCount-1) {
-            // in the middle, bring last one down to fill gap
-            mProps[i].swap(mProps[mPropCount-1]);
-        }
-        mPropCount--;
-        return true;
-    }
-    return false;
-}
-
-// remove indicated keys and their values
-// return value is # keys removed
-size_t MediaAnalyticsItem::filter(size_t n, const char *attrs[]) {
-    size_t zapped = 0;
-    for (size_t i = 0; i < n; ++i) {
-        const char *name = attrs[i];
-        size_t j = findPropIndex(name);
-        if (j >= mPropCount) {
-            // not there
-            continue;
-        } else if (j + 1 == mPropCount) {
-            // last one, shorten
-            zapped++;
-            mProps[j].clear();
-            mPropCount--;
-        } else {
-            // in the middle, bring last one down and shorten
-            zapped++;
-            mProps[j].clear();
-            mProps[j] = mProps[mPropCount-1];
-            mPropCount--;
-        }
-    }
-    return zapped;
-}
-
-// remove any keys NOT in the provided list
-// return value is # keys removed
-size_t MediaAnalyticsItem::filterNot(size_t n, const char *attrs[]) {
-    std::set<std::string> check(attrs, attrs + n);
-    size_t zapped = 0;
-    for (size_t j = 0; j < mPropCount;) {
-        if (check.find(mProps[j].getName()) != check.end()) {
-            ++j;
-            continue;
-        }
-        if (j + 1 == mPropCount) {
-            // last one, shorten
-            zapped++;
-            mProps[j].clear();
-            mPropCount--;
-            break;
-        } else {
-            // in the middle, bring last one down and shorten
-            zapped++;
-            mProps[j].clear();
-            mProps[j] = mProps[mPropCount-1];
-            mPropCount--;
-        }
-    }
-    return zapped;
-}
-
-bool 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++) {
-            new (&ni[i]) Prop(); // placement new
-        }
-        mProps = ni;
-        mPropSize = nsize;
-        return true;
-    } else {
-        ALOGW("MediaAnalyticsItem::growProps fails");
-        return false;
-    }
-}
-
-// Parcel / serialize things for binder calls
-//
-
-status_t MediaAnalyticsItem::readFromParcel(const Parcel& data) {
-    int32_t version;
-    status_t status = data.readInt32(&version);
-    if (status != NO_ERROR) return status;
-
-    switch (version) {
-    case 0:
-      return readFromParcel0(data);
-    default:
-      ALOGE("%s: unsupported parcel version: %d", __func__, version);
-      return INVALID_OPERATION;
-    }
-}
-
-status_t MediaAnalyticsItem::readFromParcel0(const Parcel& data) {
-    const char *s = data.readCString();
-    mKey = s == nullptr ? "" : s;
-    int32_t pid, uid;
-    status_t status = data.readInt32(&pid) ?: data.readInt32(&uid);
-    if (status != NO_ERROR) return status;
-    mPid = (pid_t)pid;
-    mUid = (uid_t)uid;
-    s = data.readCString();
-    mPkgName = s == nullptr ? "" : s;
-    int32_t count;
-    int64_t version, timestamp;
-    status = data.readInt64(&version) ?: data.readInt64(&timestamp) ?: data.readInt32(&count);
-    if (status != NO_ERROR) return status;
-    if (count < 0) return BAD_VALUE;
-    mPkgVersionCode = version;
-    mTimestamp = timestamp;
-    for (int i = 0; i < count ; i++) {
-        Prop *prop = allocateProp();
-        status_t status = prop->readFromParcel(data);
-        if (status != NO_ERROR) return status;
-    }
-    return NO_ERROR;
-}
-
-status_t MediaAnalyticsItem::writeToParcel(Parcel *data) const {
-    if (data == nullptr) return BAD_VALUE;
-
-    const int32_t version = 0;
-    status_t status = data->writeInt32(version);
-    if (status != NO_ERROR) return status;
-
-    switch (version) {
-    case 0:
-      return writeToParcel0(data);
-    default:
-      ALOGE("%s: unsupported parcel version: %d", __func__, version);
-      return INVALID_OPERATION;
-    }
-}
-
-status_t MediaAnalyticsItem::writeToParcel0(Parcel *data) const {
-    status_t status =
-        data->writeCString(mKey.c_str())
-        ?: data->writeInt32(mPid)
-        ?: data->writeInt32(mUid)
-        ?: data->writeCString(mPkgName.c_str())
-        ?: data->writeInt64(mPkgVersionCode)
-        ?: data->writeInt64(mTimestamp);
-    if (status != NO_ERROR) return status;
-
-    data->writeInt32((int32_t)mPropCount);
-    for (size_t i = 0 ; i < mPropCount; ++i) {
-        status = mProps[i].writeToParcel(data);
-        if (status != NO_ERROR) return status;
-    }
-    return NO_ERROR;
-}
-
-const char *MediaAnalyticsItem::toCString() {
-   return toCString(PROTO_LAST);
-}
-
-const char * MediaAnalyticsItem::toCString(int version) {
-    std::string val = toString(version);
-    return strdup(val.c_str());
-}
-
-std::string MediaAnalyticsItem::toString() const {
-   return toString(PROTO_LAST);
-}
-
-std::string MediaAnalyticsItem::toString(int version) const {
-
-    // v0 : released with 'o'
-    // v1 : bug fix (missing pid/finalized separator),
-    //      adds apk name, apk version code
-
-    if (version <= PROTO_FIRST) {
-        // default to original v0 format, until proper parsers are in place
-        version = PROTO_V0;
-    } else if (version > PROTO_LAST) {
-        version = PROTO_LAST;
-    }
-
-    std::string result;
-    char buffer[512];
-
-    if (version == PROTO_V0) {
-        result = "(";
-    } else {
-        snprintf(buffer, sizeof(buffer), "[%d:", version);
-        result.append(buffer);
-    }
-
-    // same order as we spill into the parcel, although not required
-    // key+session are our primary matching criteria
-    result.append(mKey.c_str());
-    result.append(":0:"); // sessionID
-
-    snprintf(buffer, sizeof(buffer), "%d:", mUid);
-    result.append(buffer);
-
-    if (version >= PROTO_V1) {
-        result.append(mPkgName);
-        snprintf(buffer, sizeof(buffer), ":%"  PRId64 ":", mPkgVersionCode);
-        result.append(buffer);
-    }
-
-    // in 'o' (v1) , the separator between pid and finalized was omitted
-    if (version <= PROTO_V0) {
-        snprintf(buffer, sizeof(buffer), "%d", mPid);
-    } else {
-        snprintf(buffer, sizeof(buffer), "%d:", mPid);
-    }
-    result.append(buffer);
-
-    snprintf(buffer, sizeof(buffer), "%d:", 0 /* finalized */); // TODO: remove this.
-    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++ ) {
-        mProps[i].toString(buffer, sizeof(buffer));
-        result.append(buffer);
-    }
-
-    if (version == PROTO_V0) {
-        result.append(")");
-    } else {
-        result.append("]");
-    }
-
-    return result;
-}
-
-// for the lazy, we offer methods that finds the service and
-// calls the appropriate daemon
-bool MediaAnalyticsItem::selfrecord() {
-    ALOGD_IF(DEBUG_API, "%s: delivering %s", __func__, this->toString().c_str());
-    sp<IMediaAnalyticsService> svc = getInstance();
-    if (svc != NULL) {
-        status_t status = svc->submit(this);
-        if (status != NO_ERROR) {
-            ALOGW("%s: failed to record: %s", __func__, this->toString().c_str());
-            return false;
-        }
-        return true;
-    } else {
-        return false;
-    }
-}
-
-//static
-bool MediaAnalyticsItem::isEnabled() {
-    // completely skip logging from certain UIDs. We do this here
-    // to avoid the multi-second timeouts while we learn that
-    // sepolicy will not let us find the service.
-    // We do this only for a select set of UIDs
-    // The sepolicy protection is still in place, we just want a faster
-    // response from this specific, small set of uids.
-
-    // This is checked only once in the lifetime of the process.
-    const uid_t uid = getuid();
-    switch (uid) {
-    case AID_RADIO:     // telephony subsystem, RIL
-        return false;
-    }
-
-    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;
-    }
-    return enabled > 0;
-}
-
-// monitor health of our connection to the metrics service
-class MediaMetricsDeathNotifier : public IBinder::DeathRecipient {
-        virtual void binderDied(const wp<IBinder> &) {
-            ALOGW("Reacquire service connection on next request");
-            MediaAnalyticsItem::dropInstance();
-        }
-};
-
-static sp<MediaMetricsDeathNotifier> sNotifier;
-// static
-sp<IMediaAnalyticsService> MediaAnalyticsItem::sAnalyticsService;
-static std::mutex sServiceMutex;
-static int sRemainingBindAttempts = SVC_TRIES;
-
-// static
-void MediaAnalyticsItem::dropInstance() {
-    std::lock_guard  _l(sServiceMutex);
-    sRemainingBindAttempts = SVC_TRIES;
-    sAnalyticsService = nullptr;
-}
-
-//static
-sp<IMediaAnalyticsService> MediaAnalyticsItem::getInstance() {
-    static const char *servicename = "media.metrics";
-    static const bool enabled = isEnabled(); // singleton initialized
-
-    if (enabled == false) {
-        ALOGD_IF(DEBUG_SERVICEACCESS, "disabled");
-        return nullptr;
-    }
-    std::lock_guard _l(sServiceMutex);
-    // think of remainingBindAttempts as telling us whether service == nullptr because
-    // (1) we haven't tried to initialize it yet
-    // (2) we've tried to initialize it, but failed.
-    if (sAnalyticsService == nullptr && sRemainingBindAttempts > 0) {
-        const char *badness = "";
-        sp<IServiceManager> sm = defaultServiceManager();
-        if (sm != nullptr) {
-            sp<IBinder> binder = sm->getService(String16(servicename));
-            if (binder != nullptr) {
-                sAnalyticsService = interface_cast<IMediaAnalyticsService>(binder);
-                sNotifier = new MediaMetricsDeathNotifier();
-                binder->linkToDeath(sNotifier);
-            } else {
-                badness = "did not find service";
-            }
-        } else {
-            badness = "No Service Manager access";
-        }
-        if (sAnalyticsService == nullptr) {
-            if (sRemainingBindAttempts > 0) {
-                sRemainingBindAttempts--;
-            }
-            ALOGD_IF(DEBUG_SERVICEACCESS, "%s: unable to bind to service %s: %s",
-                    __func__, 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;
-    }
-
-    // for each attribute from 'incoming', resolve appropriately
-    int nattr = incoming->mPropCount;
-    for (int i = 0 ; i < nattr; i++ ) {
-        Prop *iprop = &incoming->mProps[i];
-        const char *p = iprop->mName;
-        size_t len = strlen(p);
-
-        // should ignore a zero length name...
-        if (len == 0) {
-            continue;
-        }
-
-        Prop *oprop = findProp(iprop->mName);
-
-        if (oprop == NULL) {
-            // no oprop, so we insert the new one
-            oprop = allocateProp(p);
-            if (oprop != NULL) {
-                *oprop = *iprop;
-            } else {
-                ALOGW("dropped property '%s'", iprop->mName);
-            }
-        } else {
-            *oprop = *iprop;
-        }
-    }
-
-    // not sure when we'd return false...
-    return true;
-}
-
-namespace {
-
-template <typename T>
-status_t insert(const T& val, char **bufferpptr, char *bufferptrmax)
-{
-    const size_t size = sizeof(val);
-    if (*bufferpptr + size > bufferptrmax) {
-        ALOGE("%s: buffer exceeded with size %zu", __func__, size);
-        return BAD_VALUE;
-    }
-    memcpy(*bufferpptr, &val, size);
-    *bufferpptr += size;
-    return NO_ERROR;
-}
-
-template <>
-status_t insert(const char * const& val, char **bufferpptr, char *bufferptrmax)
-{
-    const size_t size = strlen(val) + 1;
-    if (size > UINT16_MAX || *bufferpptr + size > bufferptrmax) {
-        ALOGE("%s: buffer exceeded with size %zu", __func__, size);
-        return BAD_VALUE;
-    }
-    memcpy(*bufferpptr, val, size);
-    *bufferpptr += size;
-    return NO_ERROR;
-}
-
-template <>
- __unused
-status_t insert(char * const& val, char **bufferpptr, char *bufferptrmax)
-{
-    return insert((const char *)val, bufferpptr, bufferptrmax);
-}
-
-template <typename T>
-status_t extract(T *val, const char **bufferpptr, const char *bufferptrmax)
-{
-    const size_t size = sizeof(*val);
-    if (*bufferpptr + size > bufferptrmax) {
-        ALOGE("%s: buffer exceeded with size %zu", __func__, size);
-        return BAD_VALUE;
-    }
-    memcpy(val, *bufferpptr, size);
-    *bufferpptr += size;
-    return NO_ERROR;
-}
-
-template <>
-status_t extract(char **val, const char **bufferpptr, const char *bufferptrmax)
-{
-    const char *ptr = *bufferpptr;
-    while (*ptr != 0) {
-        if (ptr >= bufferptrmax) {
-            ALOGE("%s: buffer exceeded", __func__);
-        }
-        ++ptr;
-    }
-    const size_t size = (ptr - *bufferpptr) + 1;
-    *val = (char *)malloc(size);
-    memcpy(*val, *bufferpptr, size);
-    *bufferpptr += size;
-    return NO_ERROR;
-}
-
-} // namespace
-
-status_t MediaAnalyticsItem::writeToByteString(char **pbuffer, size_t *plength) const
-{
-    if (pbuffer == nullptr || plength == nullptr)
-        return BAD_VALUE;
-
-    // get size
-    const size_t keySizeZeroTerminated = strlen(mKey.c_str()) + 1;
-    if (keySizeZeroTerminated > UINT16_MAX) {
-        ALOGW("%s: key size %zu too large", __func__, keySizeZeroTerminated);
-        return INVALID_OPERATION;
-    }
-    const uint16_t version = 0;
-    const uint32_t header_len =
-        sizeof(uint32_t)     // overall length
-        + sizeof(header_len) // header length
-        + sizeof(version)    // encoding version
-        + sizeof(uint16_t)   // key length
-        + keySizeZeroTerminated // key, zero terminated
-        + sizeof(int32_t)    // pid
-        + sizeof(int32_t)    // uid
-        + sizeof(int64_t)    // timestamp
-        ;
-
-    uint32_t len = header_len
-        + sizeof(uint32_t) // # properties
-        ;
-    for (size_t i = 0 ; i < mPropCount; ++i) {
-        const size_t size = mProps[i].getByteStringSize();
-        if (size > UINT_MAX - 1) {
-            ALOGW("%s: prop %zu has size %zu", __func__, i, size);
-            return INVALID_OPERATION;
-        }
-        len += size;
-    }
-
-    // TODO: consider package information and timestamp.
-
-    // now that we have a size... let's allocate and fill
-    char *build = (char *)calloc(1 /* nmemb */, len);
-    if (build == nullptr) return NO_MEMORY;
-
-    char *filling = build;
-    char *buildmax = build + len;
-    if (insert(len, &filling, buildmax) != NO_ERROR
-            || insert(header_len, &filling, buildmax) != NO_ERROR
-            || insert(version, &filling, buildmax) != NO_ERROR
-            || insert((uint16_t)keySizeZeroTerminated, &filling, buildmax) != NO_ERROR
-            || insert(mKey.c_str(), &filling, buildmax) != NO_ERROR
-            || insert((int32_t)mPid, &filling, buildmax) != NO_ERROR
-            || insert((int32_t)mUid, &filling, buildmax) != NO_ERROR
-            || insert((int64_t)mTimestamp, &filling, buildmax) != NO_ERROR
-            || insert((uint32_t)mPropCount, &filling, buildmax) != NO_ERROR) {
-        ALOGD("%s:could not write header", __func__);
-        free(build);
-        return INVALID_OPERATION;
-    }
-    for (size_t i = 0 ; i < mPropCount; ++i) {
-        if (mProps[i].writeToByteString(&filling, buildmax) != NO_ERROR) {
-            free(build);
-            ALOGD("%s:could not write prop %zu of %zu", __func__, i, mPropCount);
-            return INVALID_OPERATION;
-        }
-    }
-
-    if (filling != buildmax) {
-        ALOGE("problems populating; wrote=%d planned=%d",
-              (int)(filling - build), len);
-        free(build);
-        return INVALID_OPERATION;
-    }
-    *pbuffer = build;
-    *plength = len;
-    return NO_ERROR;
-}
-
-status_t MediaAnalyticsItem::readFromByteString(const char *bufferptr, size_t length)
-{
-    if (bufferptr == nullptr) return BAD_VALUE;
-
-    const char *read = bufferptr;
-    const char *readend = bufferptr + length;
-
-    uint32_t len;
-    uint32_t header_len;
-    int16_t version;
-    int16_t key_len;
-    char *key = nullptr;
-    int32_t pid;
-    int32_t uid;
-    int64_t timestamp;
-    uint32_t propCount;
-    if (extract(&len, &read, readend) != NO_ERROR
-            || extract(&header_len, &read, readend) != NO_ERROR
-            || extract(&version, &read, readend) != NO_ERROR
-            || extract(&key_len, &read, readend) != NO_ERROR
-            || extract(&key, &read, readend) != NO_ERROR
-            || extract(&pid, &read, readend) != NO_ERROR
-            || extract(&uid, &read, readend) != NO_ERROR
-            || extract(&timestamp, &read, readend) != NO_ERROR
-            || len > length
-            || header_len > len) {
-        free(key);
-        ALOGD("%s: invalid header", __func__);
-        return INVALID_OPERATION;
-    }
-    mKey = key;
-    free(key);
-    const size_t pos = read - bufferptr;
-    if (pos > header_len) {
-        ALOGD("%s: invalid header pos:%zu > header_len:%u",
-                __func__, pos, header_len);
-        return INVALID_OPERATION;
-    } else if (pos < header_len) {
-        ALOGD("%s: mismatched header pos:%zu < header_len:%u, advancing",
-                __func__, pos, header_len);
-        read += (header_len - pos);
-    }
-    if (extract(&propCount, &read, readend) != NO_ERROR) {
-        ALOGD("%s: cannot read prop count", __func__);
-        return INVALID_OPERATION;
-    }
-    mPid = pid;
-    mUid = uid;
-    mTimestamp = timestamp;
-    for (size_t i = 0; i < propCount; ++i) {
-        Prop *prop = allocateProp();
-        if (prop->readFromByteString(&read, readend) != NO_ERROR) {
-            ALOGD("%s: cannot read prop %zu", __func__, i);
-            return INVALID_OPERATION;
-        }
-    }
-    return NO_ERROR;
-}
-
-status_t MediaAnalyticsItem::Prop::writeToParcel(Parcel *data) const
-{
-   switch (mType) {
-   case kTypeInt32:
-       return data->writeCString(mName)
-               ?: data->writeInt32(mType)
-               ?: data->writeInt32(u.int32Value);
-   case kTypeInt64:
-       return data->writeCString(mName)
-               ?: data->writeInt32(mType)
-               ?: data->writeInt64(u.int64Value);
-   case kTypeDouble:
-       return data->writeCString(mName)
-               ?: data->writeInt32(mType)
-               ?: data->writeDouble(u.doubleValue);
-   case kTypeRate:
-       return data->writeCString(mName)
-               ?: data->writeInt32(mType)
-               ?: data->writeInt64(u.rate.first)
-               ?: data->writeInt64(u.rate.second);
-   case kTypeCString:
-       return data->writeCString(mName)
-               ?: data->writeInt32(mType)
-               ?: data->writeCString(u.CStringValue);
-   default:
-       ALOGE("%s: found bad type: %d, name %s", __func__, mType, mName);
-       return BAD_VALUE;
-   }
-}
-
-status_t MediaAnalyticsItem::Prop::readFromParcel(const Parcel& data)
-{
-    const char *key = data.readCString();
-    if (key == nullptr) return BAD_VALUE;
-    int32_t type;
-    status_t status = data.readInt32(&type);
-    if (status != NO_ERROR) return status;
-    switch (type) {
-    case kTypeInt32:
-        status = data.readInt32(&u.int32Value);
-        break;
-    case kTypeInt64:
-        status = data.readInt64(&u.int64Value);
-        break;
-    case kTypeDouble:
-        status = data.readDouble(&u.doubleValue);
-        break;
-    case kTypeCString: {
-        const char *s = data.readCString();
-        if (s == nullptr) return BAD_VALUE;
-        set(s);
-        break;
-        }
-    case kTypeRate: {
-        std::pair<int64_t, int64_t> rate;
-        status = data.readInt64(&rate.first)
-                ?: data.readInt64(&rate.second);
-        if (status == NO_ERROR) {
-            set(rate);
-        }
-        break;
-        }
-    default:
-        ALOGE("%s: reading bad item type: %d", __func__, mType);
-        return BAD_VALUE;
-    }
-    if (status == NO_ERROR) {
-        setName(key);
-        mType = (Type)type;
-    }
-    return status;
-}
-
-void MediaAnalyticsItem::Prop::toString(char *buffer, size_t length) const
-{
-    switch (mType) {
-    case kTypeInt32:
-        snprintf(buffer, length, "%s=%d:", mName, u.int32Value);
-        break;
-    case MediaAnalyticsItem::kTypeInt64:
-        snprintf(buffer, length, "%s=%lld:", mName, (long long)u.int64Value);
-        break;
-    case MediaAnalyticsItem::kTypeDouble:
-        snprintf(buffer, length, "%s=%e:", mName, u.doubleValue);
-        break;
-    case MediaAnalyticsItem::kTypeRate:
-        snprintf(buffer, length, "%s=%lld/%lld:",
-                mName, (long long)u.rate.first, (long long)u.rate.second);
-        break;
-    case MediaAnalyticsItem::kTypeCString:
-        // TODO sanitize string for ':' '='
-        snprintf(buffer, length, "%s=%s:", mName, u.CStringValue);
-        break;
-    default:
-        ALOGE("%s: bad item type: %d for %s", __func__, mType, mName);
-        if (length > 0) buffer[0] = 0;
-        break;
-    }
-}
-
-size_t MediaAnalyticsItem::Prop::getByteStringSize() const
-{
-    const size_t header =
-        sizeof(uint16_t)      // length
-        + sizeof(uint8_t)     // type
-        + strlen(mName) + 1;  // mName + 0 termination
-    size_t payload = 0;
-    switch (mType) {
-    case MediaAnalyticsItem::kTypeInt32:
-        payload = sizeof(u.int32Value);
-        break;
-    case MediaAnalyticsItem::kTypeInt64:
-        payload = sizeof(u.int64Value);
-        break;
-    case MediaAnalyticsItem::kTypeDouble:
-        payload = sizeof(u.doubleValue);
-        break;
-    case MediaAnalyticsItem::kTypeRate:
-        payload = sizeof(u.rate.first) + sizeof(u.rate.second);
-        break;
-    case MediaAnalyticsItem::kTypeCString:
-        payload = strlen(u.CStringValue) + 1;
-        break;
-    default:
-        ALOGE("%s: found bad prop type: %d, name %s",
-                __func__, mType, mName); // no payload computed
-        break;
-    }
-    return header + payload;
-}
-
-// TODO: fold into a template later.
-status_t MediaAnalyticsItem::writeToByteString(
-        const char *name, int32_t value, char **bufferpptr, char *bufferptrmax)
-{
-    const size_t len = 2 + 1 + strlen(name) + 1 + sizeof(value);
-    if (len > UINT16_MAX) return BAD_VALUE;
-    return insert((uint16_t)len, bufferpptr, bufferptrmax)
-            ?: insert((uint8_t)kTypeInt32, bufferpptr, bufferptrmax)
-            ?: insert(name, bufferpptr, bufferptrmax)
-            ?: insert(value, bufferpptr, bufferptrmax);
-}
-
-status_t MediaAnalyticsItem::writeToByteString(
-        const char *name, int64_t value, char **bufferpptr, char *bufferptrmax)
-{
-    const size_t len = 2 + 1 + strlen(name) + 1 + sizeof(value);
-    if (len > UINT16_MAX) return BAD_VALUE;
-    return insert((uint16_t)len, bufferpptr, bufferptrmax)
-            ?: insert((uint8_t)kTypeInt64, bufferpptr, bufferptrmax)
-            ?: insert(name, bufferpptr, bufferptrmax)
-            ?: insert(value, bufferpptr, bufferptrmax);
-}
-
-status_t MediaAnalyticsItem::writeToByteString(
-        const char *name, double value, char **bufferpptr, char *bufferptrmax)
-{
-    const size_t len = 2 + 1 + strlen(name) + 1 + sizeof(value);
-    if (len > UINT16_MAX) return BAD_VALUE;
-    return insert((uint16_t)len, bufferpptr, bufferptrmax)
-            ?: insert((uint8_t)kTypeDouble, bufferpptr, bufferptrmax)
-            ?: insert(name, bufferpptr, bufferptrmax)
-            ?: insert(value, bufferpptr, bufferptrmax);
-}
-
-status_t MediaAnalyticsItem::writeToByteString(
-        const char *name, const std::pair<int64_t, int64_t> &value, char **bufferpptr, char *bufferptrmax)
-{
-    const size_t len = 2 + 1 + strlen(name) + 1 + 8 + 8;
-    if (len > UINT16_MAX) return BAD_VALUE;
-    return insert((uint16_t)len, bufferpptr, bufferptrmax)
-            ?: insert((uint8_t)kTypeRate, bufferpptr, bufferptrmax)
-            ?: insert(name, bufferpptr, bufferptrmax)
-            ?: insert(value.first, bufferpptr, bufferptrmax)
-            ?: insert(value.second, bufferpptr, bufferptrmax);
-}
-
-status_t MediaAnalyticsItem::writeToByteString(
-        const char *name, char * const &value, char **bufferpptr, char *bufferptrmax)
-{
-    const size_t len = 2 + 1 + strlen(name) + 1 + strlen(value) + 1;
-    if (len > UINT16_MAX) return BAD_VALUE;
-    return insert((uint16_t)len, bufferpptr, bufferptrmax)
-            ?: insert((uint8_t)kTypeCString, bufferpptr, bufferptrmax)
-            ?: insert(name, bufferpptr, bufferptrmax)
-            ?: insert(value, bufferpptr, bufferptrmax);
-}
-
-status_t MediaAnalyticsItem::writeToByteString(
-        const char *name, const none_t &, char **bufferpptr, char *bufferptrmax)
-{
-    const size_t len = 2 + 1 + strlen(name) + 1;
-    if (len > UINT16_MAX) return BAD_VALUE;
-    return insert((uint16_t)len, bufferpptr, bufferptrmax)
-            ?: insert((uint8_t)kTypeCString, bufferpptr, bufferptrmax)
-            ?: insert(name, bufferpptr, bufferptrmax);
-}
-
-status_t MediaAnalyticsItem::Prop::writeToByteString(
-        char **bufferpptr, char *bufferptrmax) const
-{
-    switch (mType) {
-    case kTypeInt32:
-        return MediaAnalyticsItem::writeToByteString(mName, u.int32Value, bufferpptr, bufferptrmax);
-    case kTypeInt64:
-        return MediaAnalyticsItem::writeToByteString(mName, u.int64Value, bufferpptr, bufferptrmax);
-    case kTypeDouble:
-        return MediaAnalyticsItem::writeToByteString(mName, u.doubleValue, bufferpptr, bufferptrmax);
-    case kTypeRate:
-        return MediaAnalyticsItem::writeToByteString(mName, u.rate, bufferpptr, bufferptrmax);
-    case kTypeCString:
-        return MediaAnalyticsItem::writeToByteString(mName, u.CStringValue, bufferpptr, bufferptrmax);
-    case kTypeNone:
-        return MediaAnalyticsItem::writeToByteString(mName, none_t{}, bufferpptr, bufferptrmax);
-    default:
-        ALOGE("%s: found bad prop type: %d, name %s",
-                __func__, mType, mName);  // no payload sent
-        return BAD_VALUE;
-    }
-}
-
-status_t MediaAnalyticsItem::Prop::readFromByteString(
-        const char **bufferpptr, const char *bufferptrmax)
-{
-    uint16_t len;
-    char *name;
-    uint8_t type;
-    status_t status = extract(&len, bufferpptr, bufferptrmax)
-            ?: extract(&type, bufferpptr, bufferptrmax)
-            ?: extract(&name, bufferpptr, bufferptrmax);
-    if (status != NO_ERROR) return status;
-    if (mName != nullptr) {
-        free(mName);
-    }
-    mName = name;
-    if (mType == kTypeCString) {
-        free(u.CStringValue);
-        u.CStringValue = nullptr;
-    }
-    mType = (Type)type;
-    switch (mType) {
-    case kTypeInt32:
-        return extract(&u.int32Value, bufferpptr, bufferptrmax);
-    case kTypeInt64:
-        return extract(&u.int64Value, bufferpptr, bufferptrmax);
-    case kTypeDouble:
-        return extract(&u.doubleValue, bufferpptr, bufferptrmax);
-    case kTypeRate:
-        return extract(&u.rate.first, bufferpptr, bufferptrmax)
-                ?: extract(&u.rate.second, bufferpptr, bufferptrmax);
-    case kTypeCString:
-        status = extract(&u.CStringValue, bufferpptr, bufferptrmax);
-        if (status != NO_ERROR) mType = kTypeNone;
-        return status;
-    case kTypeNone:
-        return NO_ERROR;
-    default:
-        mType = kTypeNone;
-        ALOGE("%s: found bad prop type: %d, name %s",
-                __func__, mType, mName);  // no payload sent
-        return BAD_VALUE;
-    }
-}
-
-} // namespace android
diff --git a/media/libmediametrics/MediaMetrics.cpp b/media/libmediametrics/MediaMetrics.cpp
index cf268e0..a3c2f1a 100644
--- a/media/libmediametrics/MediaMetrics.cpp
+++ b/media/libmediametrics/MediaMetrics.cpp
@@ -21,7 +21,7 @@
 #include <string.h>
 #include <sys/types.h>
 
-#include <media/MediaAnalyticsItem.h>
+#include <media/MediaMetricsItem.h>
 #include <media/MediaMetrics.h>
 
 //
@@ -31,28 +31,31 @@
 // ALL functions returning a char * give responsibility for the allocated buffer
 // to the caller. The caller is responsible to call free() on that pointer.
 //
+//
+
+using namespace android::mediametrics;
 
 // manage the overall record
 mediametrics_handle_t mediametrics_create(mediametricskey_t key) {
-    android::MediaAnalyticsItem *item = android::MediaAnalyticsItem::create(key);
+    Item *item = Item::create(key);
     return (mediametrics_handle_t) item;
 }
 
 void mediametrics_delete(mediametrics_handle_t handle) {
-    android::MediaAnalyticsItem *item = (android::MediaAnalyticsItem *) handle;
+    Item *item = (Item *) handle;
     if (item == NULL) return;
     delete item;
 }
 
 mediametricskey_t mediametrics_getKey(mediametrics_handle_t handle) {
-    android::MediaAnalyticsItem *item = (android::MediaAnalyticsItem *) handle;
+    Item *item = (Item *) handle;
     if (item == NULL) return NULL;
     return strdup(item->getKey().c_str());
 }
 
 // nuplayer, et al use it when acting as proxies
 void mediametrics_setUid(mediametrics_handle_t handle, uid_t uid) {
-    android::MediaAnalyticsItem *item = (android::MediaAnalyticsItem *) handle;
+    Item *item = (Item *) handle;
     if (item != NULL) item->setUid(uid);
 }
 
@@ -61,31 +64,31 @@
 
 void mediametrics_setInt32(mediametrics_handle_t handle, attr_t attr,
                                 int32_t value) {
-    android::MediaAnalyticsItem *item = (android::MediaAnalyticsItem *) handle;
+    Item *item = (Item *) handle;
     if (item != NULL) item->setInt32(attr, value);
 }
 
 void mediametrics_setInt64(mediametrics_handle_t handle, attr_t attr,
                                 int64_t value) {
-    android::MediaAnalyticsItem *item = (android::MediaAnalyticsItem *) handle;
+    Item *item = (Item *) handle;
     if (item != NULL) item->setInt64(attr, value);
 }
 
 void mediametrics_setDouble(mediametrics_handle_t handle, attr_t attr,
                                  double value) {
-    android::MediaAnalyticsItem *item = (android::MediaAnalyticsItem *) handle;
+    Item *item = (Item *) handle;
     if (item != NULL) item->setDouble(attr, value);
 }
 
 void mediametrics_setRate(mediametrics_handle_t handle, attr_t attr,
                                int64_t count, int64_t duration) {
-    android::MediaAnalyticsItem *item = (android::MediaAnalyticsItem *) handle;
+    Item *item = (Item *) handle;
     if (item != NULL) item->setRate(attr, count, duration);
 }
 
 void mediametrics_setCString(mediametrics_handle_t handle, attr_t attr,
                                  const char *value) {
-    android::MediaAnalyticsItem *item = (android::MediaAnalyticsItem *) handle;
+    Item *item = (Item *) handle;
     if (item != NULL) item->setCString(attr, value);
 }
 
@@ -94,25 +97,25 @@
 
 void mediametrics_addInt32(mediametrics_handle_t handle, attr_t attr,
                                 int32_t value) {
-    android::MediaAnalyticsItem *item = (android::MediaAnalyticsItem *) handle;
+    Item *item = (Item *) handle;
     if (item != NULL) item->addInt32(attr, value);
 }
 
 void mediametrics_addInt64(mediametrics_handle_t handle, attr_t attr,
                                 int64_t value) {
-    android::MediaAnalyticsItem *item = (android::MediaAnalyticsItem *) handle;
+    Item *item = (Item *) handle;
     if (item != NULL) item->addInt64(attr, value);
 }
 
 void mediametrics_addDouble(mediametrics_handle_t handle, attr_t attr,
                                  double value) {
-    android::MediaAnalyticsItem *item = (android::MediaAnalyticsItem *) handle;
+    Item *item = (Item *) handle;
     if (item != NULL) item->addDouble(attr, value);
 }
 
 void mediametrics_addRate(mediametrics_handle_t handle, attr_t attr,
                                int64_t count, int64_t duration) {
-    android::MediaAnalyticsItem *item = (android::MediaAnalyticsItem *) handle;
+    Item *item = (Item *) handle;
     if (item != NULL) item->addRate(attr, count, duration);
 }
 
@@ -123,28 +126,28 @@
 
 bool mediametrics_getInt32(mediametrics_handle_t handle, attr_t attr,
                                 int32_t * value) {
-    android::MediaAnalyticsItem *item = (android::MediaAnalyticsItem *) handle;
+    Item *item = (Item *) handle;
     if (item == NULL) return false;
     return item->getInt32(attr, value);
 }
 
 bool mediametrics_getInt64(mediametrics_handle_t handle, attr_t attr,
                                 int64_t * value) {
-    android::MediaAnalyticsItem *item = (android::MediaAnalyticsItem *) handle;
+    Item *item = (Item *) handle;
     if (item == NULL) return false;
     return item->getInt64(attr, value);
 }
 
 bool mediametrics_getDouble(mediametrics_handle_t handle, attr_t attr,
                                  double *value) {
-    android::MediaAnalyticsItem *item = (android::MediaAnalyticsItem *) handle;
+    Item *item = (Item *) handle;
     if (item == NULL) return false;
     return item->getDouble(attr, value);
 }
 
 bool mediametrics_getRate(mediametrics_handle_t handle, attr_t attr,
                                int64_t * count, int64_t * duration, double *rate) {
-    android::MediaAnalyticsItem *item = (android::MediaAnalyticsItem *) handle;
+    Item *item = (Item *) handle;
     if (item == NULL) return false;
     return item->getRate(attr, count, duration, rate);
 }
@@ -152,7 +155,7 @@
 // NB: caller owns the string that comes back, is responsible for freeing it
 bool mediametrics_getCString(mediametrics_handle_t handle, attr_t attr,
                                  char **value) {
-    android::MediaAnalyticsItem *item = (android::MediaAnalyticsItem *) handle;
+    Item *item = (Item *) handle;
     if (item == NULL) return false;
 
     return item->getCString(attr, value);
@@ -164,36 +167,36 @@
 }
 
 bool mediametrics_selfRecord(mediametrics_handle_t handle) {
-    android::MediaAnalyticsItem *item = (android::MediaAnalyticsItem *) handle;
+    Item *item = (Item *) handle;
     if (item == NULL) return false;
     return item->selfrecord();
 }
 
 mediametrics_handle_t mediametrics_dup(mediametrics_handle_t handle) {
-    android::MediaAnalyticsItem *item = (android::MediaAnalyticsItem *) handle;
-    if (item == NULL) return android::MediaAnalyticsItem::convert(item);
-    return android::MediaAnalyticsItem::convert(item->dup());
+    Item *item = (Item *) handle;
+    if (item == NULL) return Item::convert(item);
+    return Item::convert(item->dup());
 }
 
 const char *mediametrics_readable(mediametrics_handle_t handle) {
-    android::MediaAnalyticsItem *item = (android::MediaAnalyticsItem *) handle;
+    Item *item = (Item *) handle;
     if (item == NULL) return "";
     return item->toCString();
 }
 
 int32_t mediametrics_count(mediametrics_handle_t handle) {
-    android::MediaAnalyticsItem *item = (android::MediaAnalyticsItem *) handle;
+    Item *item = (Item *) handle;
     if (item == NULL) return 0;
     return item->count();
 }
 
 bool mediametrics_isEnabled() {
     // static, so doesn't need an instance
-    return android::MediaAnalyticsItem::isEnabled();
+    return Item::isEnabled();
 }
 
 bool mediametrics_getAttributes(mediametrics_handle_t handle, char **buffer, size_t *length) {
-    android::MediaAnalyticsItem *item = (android::MediaAnalyticsItem *) handle;
+    Item *item = (Item *) handle;
     if (item == NULL) return false;
     return item->writeToByteString(buffer, length) == android::NO_ERROR;
 
diff --git a/media/libmediametrics/MediaMetricsItem.cpp b/media/libmediametrics/MediaMetricsItem.cpp
new file mode 100644
index 0000000..62af0f7
--- /dev/null
+++ b/media/libmediametrics/MediaMetricsItem.cpp
@@ -0,0 +1,607 @@
+/*
+ * 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::Item"
+
+#include <inttypes.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+
+#include <mutex>
+#include <set>
+
+#include <binder/Parcel.h>
+#include <utils/Errors.h>
+#include <utils/Log.h>
+#include <utils/SortedVector.h>
+#include <utils/threads.h>
+
+#include <binder/IServiceManager.h>
+#include <media/IMediaMetricsService.h>
+#include <media/MediaMetricsItem.h>
+#include <private/android_filesystem_config.h>
+
+// Max per-property string size before truncation in toString().
+// Do not make too large, as this is used for dumpsys purposes.
+static constexpr size_t kMaxPropertyStringSize = 4096;
+
+namespace android::mediametrics {
+
+#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
+
+mediametrics::Item* mediametrics::Item::convert(mediametrics_handle_t handle) {
+    mediametrics::Item *item = (android::mediametrics::Item *) handle;
+    return item;
+}
+
+mediametrics_handle_t mediametrics::Item::convert(mediametrics::Item *item ) {
+    mediametrics_handle_t handle = (mediametrics_handle_t) item;
+    return handle;
+}
+
+mediametrics::Item::~Item() {
+    if (DEBUG_ALLOCATIONS) {
+        ALOGD("Destroy  mediametrics::Item @ %p", this);
+    }
+}
+
+mediametrics::Item &mediametrics::Item::setTimestamp(nsecs_t ts) {
+    mTimestamp = ts;
+    return *this;
+}
+
+nsecs_t mediametrics::Item::getTimestamp() const {
+    return mTimestamp;
+}
+
+mediametrics::Item &mediametrics::Item::setPid(pid_t pid) {
+    mPid = pid;
+    return *this;
+}
+
+pid_t mediametrics::Item::getPid() const {
+    return mPid;
+}
+
+mediametrics::Item &mediametrics::Item::setUid(uid_t uid) {
+    mUid = uid;
+    return *this;
+}
+
+uid_t mediametrics::Item::getUid() const {
+    return mUid;
+}
+
+mediametrics::Item &mediametrics::Item::setPkgName(const std::string &pkgName) {
+    mPkgName = pkgName;
+    return *this;
+}
+
+mediametrics::Item &mediametrics::Item::setPkgVersionCode(int64_t pkgVersionCode) {
+    mPkgVersionCode = pkgVersionCode;
+    return *this;
+}
+
+int64_t mediametrics::Item::getPkgVersionCode() const {
+    return mPkgVersionCode;
+}
+
+// remove indicated keys and their values
+// return value is # keys removed
+size_t mediametrics::Item::filter(size_t n, const char *attrs[]) {
+    size_t zapped = 0;
+    for (size_t i = 0; i < n; ++i) {
+        zapped += mProps.erase(attrs[i]);
+    }
+    return zapped;
+}
+
+// remove any keys NOT in the provided list
+// return value is # keys removed
+size_t mediametrics::Item::filterNot(size_t n, const char *attrs[]) {
+    std::set<std::string> check(attrs, attrs + n);
+    size_t zapped = 0;
+    for (auto it = mProps.begin(); it != mProps.end();) {
+        if (check.find(it->first) != check.end()) {
+            ++it;
+        } else {
+           it = mProps.erase(it);
+           ++zapped;
+        }
+    }
+    return zapped;
+}
+
+// Parcel / serialize things for binder calls
+//
+
+status_t mediametrics::Item::readFromParcel(const Parcel& data) {
+    int32_t version;
+    status_t status = data.readInt32(&version);
+    if (status != NO_ERROR) return status;
+
+    switch (version) {
+    case 0:
+      return readFromParcel0(data);
+    default:
+      ALOGE("%s: unsupported parcel version: %d", __func__, version);
+      return INVALID_OPERATION;
+    }
+}
+
+status_t mediametrics::Item::readFromParcel0(const Parcel& data) {
+    const char *s = data.readCString();
+    mKey = s == nullptr ? "" : s;
+    int32_t pid, uid;
+    status_t status = data.readInt32(&pid) ?: data.readInt32(&uid);
+    if (status != NO_ERROR) return status;
+    mPid = (pid_t)pid;
+    mUid = (uid_t)uid;
+    s = data.readCString();
+    mPkgName = s == nullptr ? "" : s;
+    int32_t count;
+    int64_t version, timestamp;
+    status = data.readInt64(&version) ?: data.readInt64(&timestamp) ?: data.readInt32(&count);
+    if (status != NO_ERROR) return status;
+    if (count < 0) return BAD_VALUE;
+    mPkgVersionCode = version;
+    mTimestamp = timestamp;
+    for (int i = 0; i < count; i++) {
+        Prop prop;
+        status_t status = prop.readFromParcel(data);
+        if (status != NO_ERROR) return status;
+        mProps[prop.getName()] = std::move(prop);
+    }
+    return NO_ERROR;
+}
+
+status_t mediametrics::Item::writeToParcel(Parcel *data) const {
+    if (data == nullptr) return BAD_VALUE;
+
+    const int32_t version = 0;
+    status_t status = data->writeInt32(version);
+    if (status != NO_ERROR) return status;
+
+    switch (version) {
+    case 0:
+      return writeToParcel0(data);
+    default:
+      ALOGE("%s: unsupported parcel version: %d", __func__, version);
+      return INVALID_OPERATION;
+    }
+}
+
+status_t mediametrics::Item::writeToParcel0(Parcel *data) const {
+    status_t status =
+        data->writeCString(mKey.c_str())
+        ?: data->writeInt32(mPid)
+        ?: data->writeInt32(mUid)
+        ?: data->writeCString(mPkgName.c_str())
+        ?: data->writeInt64(mPkgVersionCode)
+        ?: data->writeInt64(mTimestamp);
+    if (status != NO_ERROR) return status;
+
+    data->writeInt32((int32_t)mProps.size());
+    for (auto &prop : *this) {
+        status = prop.writeToParcel(data);
+        if (status != NO_ERROR) return status;
+    }
+    return NO_ERROR;
+}
+
+const char *mediametrics::Item::toCString() {
+   return toCString(PROTO_LAST);
+}
+
+const char * mediametrics::Item::toCString(int version) {
+    std::string val = toString(version);
+    return strdup(val.c_str());
+}
+
+std::string mediametrics::Item::toString() const {
+   return toString(PROTO_LAST);
+}
+
+std::string mediametrics::Item::toString(int version) const {
+    std::string result;
+    char buffer[kMaxPropertyStringSize];
+
+    snprintf(buffer, sizeof(buffer), "[%d:%s:%d:%d:%lld:%s:%zu:",
+            version, mKey.c_str(), mPid, mUid, (long long)mTimestamp,
+            mPkgName.c_str(), mProps.size());
+    result.append(buffer);
+    for (auto &prop : *this) {
+        prop.toStringBuffer(buffer, sizeof(buffer));
+        result.append(buffer);
+    }
+    result.append("]");
+    return result;
+}
+
+// for the lazy, we offer methods that finds the service and
+// calls the appropriate daemon
+bool mediametrics::Item::selfrecord() {
+    ALOGD_IF(DEBUG_API, "%s: delivering %s", __func__, this->toString().c_str());
+    sp<IMediaMetricsService> svc = getService();
+    if (svc != NULL) {
+        status_t status = svc->submit(this);
+        if (status != NO_ERROR) {
+            ALOGW("%s: failed to record: %s", __func__, this->toString().c_str());
+            return false;
+        }
+        return true;
+    } else {
+        return false;
+    }
+}
+
+//static
+bool BaseItem::isEnabled() {
+    // completely skip logging from certain UIDs. We do this here
+    // to avoid the multi-second timeouts while we learn that
+    // sepolicy will not let us find the service.
+    // We do this only for a select set of UIDs
+    // The sepolicy protection is still in place, we just want a faster
+    // response from this specific, small set of uids.
+
+    // This is checked only once in the lifetime of the process.
+    const uid_t uid = getuid();
+    switch (uid) {
+    case AID_RADIO:     // telephony subsystem, RIL
+        return false;
+    }
+
+    int enabled = property_get_int32(Item::EnabledProperty, -1);
+    if (enabled == -1) {
+        enabled = property_get_int32(Item::EnabledPropertyPersist, -1);
+    }
+    if (enabled == -1) {
+        enabled = Item::EnabledProperty_default;
+    }
+    return enabled > 0;
+}
+
+// monitor health of our connection to the metrics service
+class MediaMetricsDeathNotifier : public IBinder::DeathRecipient {
+        virtual void binderDied(const wp<IBinder> &) {
+            ALOGW("Reacquire service connection on next request");
+            BaseItem::dropInstance();
+        }
+};
+
+static sp<MediaMetricsDeathNotifier> sNotifier;
+// static
+sp<IMediaMetricsService> BaseItem::sMediaMetricsService;
+static std::mutex sServiceMutex;
+static int sRemainingBindAttempts = SVC_TRIES;
+
+// static
+void BaseItem::dropInstance() {
+    std::lock_guard  _l(sServiceMutex);
+    sRemainingBindAttempts = SVC_TRIES;
+    sMediaMetricsService = nullptr;
+}
+
+// static
+bool BaseItem::submitBuffer(const char *buffer, size_t size) {
+/*
+    mediametrics::Item item;
+    status_t status = item.readFromByteString(buffer, size);
+    ALOGD("%s: status:%d, size:%zu, item:%s", __func__, status, size, item.toString().c_str());
+    return item.selfrecord();
+    */
+
+    ALOGD_IF(DEBUG_API, "%s: delivering %zu bytes", __func__, size);
+    sp<IMediaMetricsService> svc = getService();
+    if (svc != nullptr) {
+        const status_t status = svc->submitBuffer(buffer, size);
+        if (status != NO_ERROR) {
+            ALOGW("%s: failed(%d) to record: %zu bytes", __func__, status, size);
+            return false;
+        }
+        return true;
+    }
+    return false;
+}
+
+//static
+sp<IMediaMetricsService> BaseItem::getService() {
+    static const char *servicename = "media.metrics";
+    static const bool enabled = isEnabled(); // singleton initialized
+
+    if (enabled == false) {
+        ALOGD_IF(DEBUG_SERVICEACCESS, "disabled");
+        return nullptr;
+    }
+    std::lock_guard _l(sServiceMutex);
+    // think of remainingBindAttempts as telling us whether service == nullptr because
+    // (1) we haven't tried to initialize it yet
+    // (2) we've tried to initialize it, but failed.
+    if (sMediaMetricsService == nullptr && sRemainingBindAttempts > 0) {
+        const char *badness = "";
+        sp<IServiceManager> sm = defaultServiceManager();
+        if (sm != nullptr) {
+            sp<IBinder> binder = sm->getService(String16(servicename));
+            if (binder != nullptr) {
+                sMediaMetricsService = interface_cast<IMediaMetricsService>(binder);
+                sNotifier = new MediaMetricsDeathNotifier();
+                binder->linkToDeath(sNotifier);
+            } else {
+                badness = "did not find service";
+            }
+        } else {
+            badness = "No Service Manager access";
+        }
+        if (sMediaMetricsService == nullptr) {
+            if (sRemainingBindAttempts > 0) {
+                sRemainingBindAttempts--;
+            }
+            ALOGD_IF(DEBUG_SERVICEACCESS, "%s: unable to bind to service %s: %s",
+                    __func__, servicename, badness);
+        }
+    }
+    return sMediaMetricsService;
+}
+
+
+status_t mediametrics::Item::writeToByteString(char **pbuffer, size_t *plength) const
+{
+    if (pbuffer == nullptr || plength == nullptr)
+        return BAD_VALUE;
+
+    // get size
+    const size_t keySizeZeroTerminated = strlen(mKey.c_str()) + 1;
+    if (keySizeZeroTerminated > UINT16_MAX) {
+        ALOGW("%s: key size %zu too large", __func__, keySizeZeroTerminated);
+        return INVALID_OPERATION;
+    }
+    const uint16_t version = 0;
+    const uint32_t header_size =
+        sizeof(uint32_t)      // total size
+        + sizeof(header_size) // header size
+        + sizeof(version)     // encoding version
+        + sizeof(uint16_t)    // key size
+        + keySizeZeroTerminated // key, zero terminated
+        + sizeof(int32_t)     // pid
+        + sizeof(int32_t)     // uid
+        + sizeof(int64_t)     // timestamp
+        ;
+
+    uint32_t size = header_size
+        + sizeof(uint32_t) // # properties
+        ;
+    for (auto &prop : *this) {
+        const size_t propSize = prop.getByteStringSize();
+        if (propSize > UINT16_MAX) {
+            ALOGW("%s: prop %s size %zu too large", __func__, prop.getName(), propSize);
+            return INVALID_OPERATION;
+        }
+        if (__builtin_add_overflow(size, propSize, &size)) {
+            ALOGW("%s: item size overflow at property %s", __func__, prop.getName());
+            return INVALID_OPERATION;
+        }
+    }
+
+    // since we fill every byte in the buffer (there is no padding),
+    // malloc is used here instead of calloc.
+    char * const build = (char *)malloc(size);
+    if (build == nullptr) return NO_MEMORY;
+
+    char *filling = build;
+    char *buildmax = build + size;
+    if (insert((uint32_t)size, &filling, buildmax) != NO_ERROR
+            || insert(header_size, &filling, buildmax) != NO_ERROR
+            || insert(version, &filling, buildmax) != NO_ERROR
+            || insert((uint16_t)keySizeZeroTerminated, &filling, buildmax) != NO_ERROR
+            || insert(mKey.c_str(), &filling, buildmax) != NO_ERROR
+            || insert((int32_t)mPid, &filling, buildmax) != NO_ERROR
+            || insert((int32_t)mUid, &filling, buildmax) != NO_ERROR
+            || insert((int64_t)mTimestamp, &filling, buildmax) != NO_ERROR
+            || insert((uint32_t)mProps.size(), &filling, buildmax) != NO_ERROR) {
+        ALOGE("%s:could not write header", __func__);  // shouldn't happen
+        free(build);
+        return INVALID_OPERATION;
+    }
+    for (auto &prop : *this) {
+        if (prop.writeToByteString(&filling, buildmax) != NO_ERROR) {
+            free(build);
+            // shouldn't happen
+            ALOGE("%s:could not write prop %s", __func__, prop.getName());
+            return INVALID_OPERATION;
+        }
+    }
+
+    if (filling != buildmax) {
+        ALOGE("%s: problems populating; wrote=%d planned=%d",
+                __func__, (int)(filling - build), (int)size);
+        free(build);
+        return INVALID_OPERATION;
+    }
+    *pbuffer = build;
+    *plength = size;
+    return NO_ERROR;
+}
+
+status_t mediametrics::Item::readFromByteString(const char *bufferptr, size_t length)
+{
+    if (bufferptr == nullptr) return BAD_VALUE;
+
+    const char *read = bufferptr;
+    const char *readend = bufferptr + length;
+
+    uint32_t size;
+    uint32_t header_size;
+    uint16_t version;
+    uint16_t key_size;
+    std::string key;
+    int32_t pid;
+    int32_t uid;
+    int64_t timestamp;
+    uint32_t propCount;
+    if (extract(&size, &read, readend) != NO_ERROR
+            || extract(&header_size, &read, readend) != NO_ERROR
+            || extract(&version, &read, readend) != NO_ERROR
+            || extract(&key_size, &read, readend) != NO_ERROR
+            || extract(&key, &read, readend) != NO_ERROR
+            || extract(&pid, &read, readend) != NO_ERROR
+            || extract(&uid, &read, readend) != NO_ERROR
+            || extract(&timestamp, &read, readend) != NO_ERROR
+            || size > length
+            || key.size() + 1 != key_size
+            || header_size > size) {
+        ALOGW("%s: invalid header", __func__);
+        return INVALID_OPERATION;
+    }
+    mKey = std::move(key);
+    const size_t pos = read - bufferptr;
+    if (pos > header_size) {
+        ALOGW("%s: invalid header pos:%zu > header_size:%u",
+                __func__, pos, header_size);
+        return INVALID_OPERATION;
+    } else if (pos < header_size) {
+        ALOGW("%s: mismatched header pos:%zu < header_size:%u, advancing",
+                __func__, pos, header_size);
+        read += (header_size - pos);
+    }
+    if (extract(&propCount, &read, readend) != NO_ERROR) {
+        ALOGD("%s: cannot read prop count", __func__);
+        return INVALID_OPERATION;
+    }
+    mPid = pid;
+    mUid = uid;
+    mTimestamp = timestamp;
+    for (size_t i = 0; i < propCount; ++i) {
+        Prop prop;
+        if (prop.readFromByteString(&read, readend) != NO_ERROR) {
+            ALOGW("%s: cannot read prop %zu", __func__, i);
+            return INVALID_OPERATION;
+        }
+        mProps[prop.getName()] = std::move(prop);
+    }
+    return NO_ERROR;
+}
+
+status_t mediametrics::Item::Prop::readFromParcel(const Parcel& data)
+{
+    const char *key = data.readCString();
+    if (key == nullptr) return BAD_VALUE;
+    int32_t type;
+    status_t status = data.readInt32(&type);
+    if (status != NO_ERROR) return status;
+    switch (type) {
+    case mediametrics::kTypeInt32: {
+        int32_t value;
+        status = data.readInt32(&value);
+        if (status != NO_ERROR) return status;
+        mElem = value;
+    } break;
+    case mediametrics::kTypeInt64: {
+        int64_t value;
+        status = data.readInt64(&value);
+        if (status != NO_ERROR) return status;
+        mElem = value;
+    } break;
+    case mediametrics::kTypeDouble: {
+        double value;
+        status = data.readDouble(&value);
+        if (status != NO_ERROR) return status;
+        mElem = value;
+    } break;
+    case mediametrics::kTypeCString: {
+        const char *s = data.readCString();
+        if (s == nullptr) return BAD_VALUE;
+        mElem = s;
+    } break;
+    case mediametrics::kTypeRate: {
+        std::pair<int64_t, int64_t> rate;
+        status = data.readInt64(&rate.first)
+                ?: data.readInt64(&rate.second);
+        if (status != NO_ERROR) return status;
+        mElem = rate;
+    } break;
+    case mediametrics::kTypeNone: {
+        mElem = std::monostate{};
+    } break;
+    default:
+        ALOGE("%s: reading bad item type: %d", __func__, type);
+        return BAD_VALUE;
+    }
+    setName(key);
+    return NO_ERROR;
+}
+
+status_t mediametrics::Item::Prop::readFromByteString(
+        const char **bufferpptr, const char *bufferptrmax)
+{
+    uint16_t len;
+    std::string name;
+    uint8_t type;
+    status_t status = extract(&len, bufferpptr, bufferptrmax)
+            ?: extract(&type, bufferpptr, bufferptrmax)
+            ?: extract(&name, bufferpptr, bufferptrmax);
+    if (status != NO_ERROR) return status;
+    switch (type) {
+    case mediametrics::kTypeInt32: {
+        int32_t value;
+        status = extract(&value, bufferpptr, bufferptrmax);
+        if (status != NO_ERROR) return status;
+        mElem = value;
+    } break;
+    case mediametrics::kTypeInt64: {
+        int64_t value;
+        status = extract(&value, bufferpptr, bufferptrmax);
+        if (status != NO_ERROR) return status;
+        mElem = value;
+    } break;
+    case mediametrics::kTypeDouble: {
+        double value;
+        status = extract(&value, bufferpptr, bufferptrmax);
+        if (status != NO_ERROR) return status;
+        mElem = value;
+    } break;
+    case mediametrics::kTypeRate: {
+        std::pair<int64_t, int64_t> value;
+        status = extract(&value.first, bufferpptr, bufferptrmax)
+                ?: extract(&value.second, bufferpptr, bufferptrmax);
+        if (status != NO_ERROR) return status;
+        mElem = value;
+    } break;
+    case mediametrics::kTypeCString: {
+        std::string value;
+        status = extract(&value, bufferpptr, bufferptrmax);
+        if (status != NO_ERROR) return status;
+        mElem = std::move(value);
+    } break;
+    case mediametrics::kTypeNone: {
+        mElem = std::monostate{};
+    } break;
+    default:
+        ALOGE("%s: found bad prop type: %d, name %s",
+                __func__, (int)type, mName.c_str());  // no payload sent
+        return BAD_VALUE;
+    }
+    mName = name;
+    return NO_ERROR;
+}
+
+} // namespace android::mediametrics
diff --git a/media/libmediametrics/include/IMediaAnalyticsService.h b/media/libmediametrics/include/IMediaMetricsService.h
similarity index 82%
rename from media/libmediametrics/include/IMediaAnalyticsService.h
rename to media/libmediametrics/include/IMediaMetricsService.h
index 1453b5f..d6871ec 100644
--- a/media/libmediametrics/include/IMediaAnalyticsService.h
+++ b/media/libmediametrics/include/IMediaMetricsService.h
@@ -29,15 +29,14 @@
 
 #include <binder/IServiceManager.h>
 
-#include <media/MediaAnalyticsItem.h>
-// nope...#include <media/MediaAnalytics.h>
+#include <media/MediaMetricsItem.h>
 
 namespace android {
 
-class IMediaAnalyticsService: public IInterface
+class IMediaMetricsService: public IInterface
 {
 public:
-    DECLARE_META_INTERFACE(MediaAnalyticsService);
+    DECLARE_META_INTERFACE(MediaMetricsService);
 
     /**
      * Submits the indicated record to the mediaanalytics service, where
@@ -48,12 +47,14 @@
      * \return status which is negative if an error is detected (some errors
                may be silent and return 0 - success).
      */
-    virtual status_t submit(MediaAnalyticsItem *item) = 0;
+    virtual status_t submit(mediametrics::Item *item) = 0;
+
+    virtual status_t submitBuffer(const char *buffer, size_t length) = 0;
 };
 
 // ----------------------------------------------------------------------------
 
-class BnMediaAnalyticsService: public BnInterface<IMediaAnalyticsService>
+class BnMediaMetricsService: public BnInterface<IMediaMetricsService>
 {
 public:
     status_t onTransact(uint32_t code,
@@ -64,7 +65,7 @@
 protected:
     // Internal call where release is true if the service is to delete the item.
     virtual status_t submitInternal(
-            MediaAnalyticsItem *item, bool release) = 0;
+            mediametrics::Item *item, bool release) = 0;
 };
 
 }; // namespace android
diff --git a/media/libmediametrics/include/MediaAnalyticsItem.h b/media/libmediametrics/include/MediaAnalyticsItem.h
deleted file mode 100644
index 5558211..0000000
--- a/media/libmediametrics/include/MediaAnalyticsItem.h
+++ /dev/null
@@ -1,649 +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 ANDROID_MEDIA_MEDIAANALYTICSITEM_H
-#define ANDROID_MEDIA_MEDIAANALYTICSITEM_H
-
-#include "MediaMetrics.h"
-
-#include <algorithm>
-#include <string>
-#include <sys/types.h>
-
-#include <cutils/properties.h>
-#include <utils/Errors.h>
-#include <utils/KeyedVector.h>
-#include <utils/RefBase.h>
-#include <utils/StrongPointer.h>
-#include <utils/Timers.h>
-
-namespace android {
-
-class IMediaAnalyticsService;
-class Parcel;
-
-/*
- * Media Metrics
- * Byte String format for communication of MediaAnalyticsItem.
- *
- * .... begin of item
- * .... begin of header
- * (uint32) length: including the length field itself
- * (uint32) header length, including header_length and length fields.
- * (uint16) version: 0
- * (uint16) key length, including zero termination
- * (int8)+ key string, including 0 termination
- * (int32) pid
- * (int32) uid
- * (int64) timestamp
- * .... end of header
- * .... begin body
- * (uint32) properties
- * #properties of the following:
- *     (uint16) property_length, including property_length field itself
- *     (uint8) type of property
- *     (int8)+ key string, including 0 termination
- *      based on type of property (above), one of:
- *       (int32)
- *       (int64)
- *       (double)
- *       (int8)+ for cstring, including 0 termination
- *       (int64, int64) for rate
- * .... end body
- * .... end of item
- */
-
-/**
- * Media Metrics MediaAnalyticsItem
- *
- * A mutable item representing an event or record that will be
- * logged with the Media Metrics service.
- *
- */
-
-class MediaAnalyticsItem {
-    friend class MediaMetricsJNI;           // TODO: remove this access
-    friend class MediaMetricsDeathNotifier; // for dropInstance
-
-public:
-
-            enum Type {
-                kTypeNone = 0,
-                kTypeInt32 = 1,
-                kTypeInt64 = 2,
-                kTypeDouble = 3,
-                kTypeCString = 4,
-                kTypeRate = 5,
-            };
-
-    static constexpr const char * const kKeyNone = "none";
-    static constexpr const char * const kKeyAny = "any";
-
-        enum {
-            PROTO_V0 = 0,
-            PROTO_FIRST = PROTO_V0,
-            PROTO_V1 = 1,
-            PROTO_LAST = PROTO_V1,
-        };
-
-    // T must be convertible to mKey
-    template <typename T>
-    explicit MediaAnalyticsItem(T key)
-        : mKey(key) { }
-    MediaAnalyticsItem() = default;
-
-    MediaAnalyticsItem(const MediaAnalyticsItem&) = delete;
-    MediaAnalyticsItem &operator=(const MediaAnalyticsItem&) = delete;
-
-    bool operator==(const MediaAnalyticsItem& other) const {
-        if (mPropCount != other.mPropCount
-            || mPid != other.mPid
-            || mUid != other.mUid
-            || mPkgName != other.mPkgName
-            || mPkgVersionCode != other.mPkgVersionCode
-            || mKey != other.mKey
-            || mTimestamp != other.mTimestamp) return false;
-         for (size_t i = 0; i < mPropCount; ++i) {
-             Prop *p = other.findProp(mProps[i].getName());
-             if (p == nullptr || mProps[i] != *p) return false;
-         }
-         return true;
-    }
-    bool operator!=(const MediaAnalyticsItem& other) const {
-        return !(*this == other);
-    }
-
-    template <typename T>
-    static MediaAnalyticsItem* create(T key) {
-        return new MediaAnalyticsItem(key);
-    }
-    static MediaAnalyticsItem* create() {
-        return new MediaAnalyticsItem();
-    }
-
-        static MediaAnalyticsItem* convert(mediametrics_handle_t);
-        static mediametrics_handle_t convert(MediaAnalyticsItem *);
-
-        // access functions for the class
-        ~MediaAnalyticsItem();
-
-        // reset all contents, discarding any extra data
-        void clear();
-        MediaAnalyticsItem *dup();
-
-    MediaAnalyticsItem &setKey(const char *key) {
-        mKey = key;
-        return *this;
-    }
-    const std::string& getKey() const { return mKey; }
-
-    // # of properties in the record
-    size_t count() const { return mPropCount; }
-
-    template<typename S, typename T>
-    MediaAnalyticsItem &set(S key, T value) {
-        allocateProp(key)->set(value);
-        return *this;
-    }
-
-    // set values appropriately
-    MediaAnalyticsItem &setInt32(const char *key, int32_t value) {
-        return set(key, value);
-    }
-    MediaAnalyticsItem &setInt64(const char *key, int64_t value) {
-        return set(key, value);
-    }
-    MediaAnalyticsItem &setDouble(const char *key, double value) {
-        return set(key, value);
-    }
-    MediaAnalyticsItem &setRate(const char *key, int64_t count, int64_t duration) {
-        return set(key, std::make_pair(count, duration));
-    }
-    MediaAnalyticsItem &setCString(const char *key, const char *value) {
-        return set(key, value);
-    }
-
-    // fused get/add/set; if attr wasn't there, it's a simple set.
-    // type-mismatch counts as "wasn't there".
-    template<typename S, typename T>
-    MediaAnalyticsItem &add(S key, T value) {
-        allocateProp(key)->add(value);
-        return *this;
-    }
-
-    MediaAnalyticsItem &addInt32(const char *key, int32_t value) {
-        return add(key, value);
-    }
-    MediaAnalyticsItem &addInt64(const char *key, int64_t value) {
-        return add(key, value);
-    }
-    MediaAnalyticsItem &addDouble(const char *key, double value) {
-        return add(key, value);
-    }
-    MediaAnalyticsItem &addRate(const char *key, int64_t count, int64_t duration) {
-        return add(key, std::make_pair(count, duration));
-    }
-
-    // find & extract values
-    // return indicates whether attr exists (and thus value filled in)
-    // NULL parameter value suppresses storage of value.
-    template<typename S, typename T>
-    bool get(S key, T *value) const {
-        Prop *prop = findProp(key);
-        return prop != nullptr && prop->get(value);
-    }
-
-    bool getInt32(const char *key, int32_t *value) const {
-        return get(key, value);
-    }
-    bool getInt64(const char *key, int64_t *value) const {
-        return get(key, value);
-    }
-    bool getDouble(const char *key, double *value) const {
-        return get(key, value);
-    }
-    bool getRate(const char *key, int64_t *count, int64_t *duration, double *rate) const {
-        std::pair<int64_t, int64_t> value;
-        if (!get(key, &value)) return false;
-        if (count != nullptr) *count = value.first;
-        if (duration != nullptr) *duration = value.second;
-        if (rate != nullptr) {
-            if (value.second != 0) {
-                *rate = (double)value.first / value.second;  // TODO: isn't INF OK?
-            } else {
-                *rate = 0.;
-            }
-        }
-        return true;
-    }
-    // Caller owns the returned string
-    bool getCString(const char *key, char **value) const {
-        const char *cs;
-        if (get(key, &cs)) {
-            *value = cs != nullptr ? strdup(cs) : nullptr;
-            return true;
-        }
-        return false;
-    }
-    bool getString(const char *key, std::string *value) const {
-        return get(key, value);
-    }
-
-        // Deliver the item to MediaMetrics
-        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'
-    size_t filter(size_t count, const char *attrs[]);
-    size_t filterNot(size_t count, const char *attrs[]);
-    size_t filter(const char *attr) { return filter(1, &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;
-
-        MediaAnalyticsItem &setPkgName(const std::string &pkgName);
-        std::string getPkgName() const { return mPkgName; }
-
-        MediaAnalyticsItem &setPkgVersionCode(int64_t);
-        int64_t getPkgVersionCode() const;
-
-    // our serialization code for binder calls
-    status_t writeToParcel(Parcel *) const;
-    status_t readFromParcel(const Parcel&);
-
-    status_t writeToByteString(char **bufferptr, size_t *length) const;
-    status_t readFromByteString(const char *bufferptr, size_t length);
-
-    static status_t writeToByteString(
-            const char *name, int32_t value, char **bufferpptr, char *bufferptrmax);
-    static status_t writeToByteString(
-            const char *name, int64_t value, char **bufferpptr, char *bufferptrmax);
-    static status_t writeToByteString(
-            const char *name, double value, char **bufferpptr, char *bufferptrmax);
-    static status_t writeToByteString(
-            const char *name, const std::pair<int64_t, int64_t> &value, char **bufferpptr, char *bufferptrmax);
-    static status_t writeToByteString(
-            const char *name, char * const &value, char **bufferpptr, char *bufferptrmax);
-    struct none_t {}; // for kTypeNone
-    static status_t writeToByteString(
-            const char *name, const none_t &, char **bufferpptr, char *bufferptrmax);
-
-        std::string toString() const;
-        std::string toString(int version) const;
-        const char *toCString();
-        const char *toCString(int version);
-
-        // 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);
-
-private:
-    // handle Parcel version 0
-    int32_t writeToParcel0(Parcel *) const;
-    int32_t readFromParcel0(const Parcel&);
-
-    // enabled 1, disabled 0
-    static constexpr const char * const EnabledProperty = "media.metrics.enabled";
-    static constexpr const char * const EnabledPropertyPersist = "persist.media.metrics.enabled";
-    static const int EnabledProperty_default = 1;
-
-    // let's reuse a binder connection
-    static sp<IMediaAnalyticsService> sAnalyticsService;
-    static sp<IMediaAnalyticsService> getInstance();
-    static void dropInstance();
-
-    // checks equality even with nullptr.
-    static bool stringEquals(const char *a, const char *b) {
-        if (a == nullptr) {
-            return b == nullptr;
-        } else {
-            return b != nullptr && strcmp(a, b) == 0;
-        }
-    }
-
-public:
-
-    class Prop {
-    friend class MediaMetricsJNI;           // TODO: remove this access
-    public:
-        Prop() = default;
-        Prop(const Prop& other) {
-           *this = other;
-        }
-        Prop& operator=(const Prop& other) {
-            if (other.mName != nullptr) {
-                mName = strdup(other.mName);
-            } else {
-                mName = nullptr;
-            }
-            mType = other.mType;
-            switch (mType) {
-            case kTypeInt32:
-                u.int32Value = other.u.int32Value;
-                break;
-            case kTypeInt64:
-                u.int64Value = other.u.int64Value;
-                break;
-            case kTypeDouble:
-                u.doubleValue = other.u.doubleValue;
-                break;
-            case kTypeCString:
-                u.CStringValue = strdup(other.u.CStringValue);
-                break;
-            case kTypeRate:
-                u.rate = other.u.rate;
-                break;
-            case kTypeNone:
-                break;
-            default:
-                // abort?
-                break;
-            }
-            return *this;
-        }
-        bool operator==(const Prop& other) const {
-            if (!stringEquals(mName, other.mName)
-                    || mType != other.mType) return false;
-            switch (mType) {
-            case kTypeInt32:
-                return u.int32Value == other.u.int32Value;
-            case kTypeInt64:
-                return u.int64Value == other.u.int64Value;
-            case kTypeDouble:
-                return u.doubleValue == other.u.doubleValue;
-            case kTypeCString:
-                return stringEquals(u.CStringValue, other.u.CStringValue);
-            case kTypeRate:
-                return u.rate == other.u.rate;
-            case kTypeNone:
-            default:
-                return true;
-            }
-        }
-        bool operator!=(const Prop& other) const {
-            return !(*this == other);
-        }
-
-        void clear() {
-            free(mName);
-            mName = nullptr;
-            clearValue();
-        }
-        void clearValue() {
-            if (mType == kTypeCString) {
-                free(u.CStringValue);
-                u.CStringValue = nullptr;
-            }
-            mType = kTypeNone;
-        }
-
-        Type getType() const {
-            return mType;
-        }
-
-        const char *getName() const {
-            return mName;
-        }
-
-        void swap(Prop& other) {
-            std::swap(mName, other.mName);
-            std::swap(mType, other.mType);
-            std::swap(u, other.u);
-        }
-
-        void setName(const char *name) {
-            free(mName);
-            if (name != nullptr) {
-                mName = strdup(name);
-            } else {
-                mName = nullptr;
-            }
-        }
-
-        bool isNamed(const char *name) const {
-            return strcmp(name, mName) == 0;
-        }
-
-        template <typename T> bool get(T *value) const = delete;
-        template <>
-        bool get(int32_t *value) const {
-           if (mType != kTypeInt32) return false;
-           if (value != nullptr) *value = u.int32Value;
-           return true;
-        }
-        template <>
-        bool get(int64_t *value) const {
-           if (mType != kTypeInt64) return false;
-           if (value != nullptr) *value = u.int64Value;
-           return true;
-        }
-        template <>
-        bool get(double *value) const {
-           if (mType != kTypeDouble) return false;
-           if (value != nullptr) *value = u.doubleValue;
-           return true;
-        }
-        template <>
-        bool get(const char** value) const {
-            if (mType != kTypeCString) return false;
-            if (value != nullptr) *value = u.CStringValue;
-            return true;
-        }
-        template <>
-        bool get(std::string* value) const {
-            if (mType != kTypeCString) return false;
-            if (value != nullptr) *value = u.CStringValue;
-            return true;
-        }
-        template <>
-        bool get(std::pair<int64_t, int64_t> *value) const {
-           if (mType != kTypeRate) return false;
-           if (value != nullptr) {
-               *value = u.rate;
-           }
-           return true;
-        }
-
-        template <typename T> void set(const T& value) = delete;
-        template <>
-        void set(const int32_t& value) {
-            mType = kTypeInt32;
-            u.int32Value = value;
-        }
-        template <>
-        void set(const int64_t& value) {
-            mType = kTypeInt64;
-            u.int64Value = value;
-        }
-        template <>
-        void set(const double& value) {
-            mType = kTypeDouble;
-            u.doubleValue = value;
-        }
-        template <>
-        void set(const char* const& value) {
-            if (mType == kTypeCString) {
-                free(u.CStringValue);
-            } else {
-                mType = kTypeCString;
-            }
-            if (value == nullptr) {
-                u.CStringValue = nullptr;
-            } else {
-                size_t len = strlen(value);
-                if (len > UINT16_MAX - 1) {
-                    len = UINT16_MAX - 1;
-                }
-                u.CStringValue = (char *)malloc(len + 1);
-                strncpy(u.CStringValue, value, len);
-                u.CStringValue[len] = 0;
-            }
-        }
-        template <>
-        void set(const std::pair<int64_t, int64_t> &value) {
-            mType = kTypeRate;
-            u.rate = {value.first, value.second};
-        }
-
-        template <typename T> void add(const T& value) = delete;
-        template <>
-        void add(const int32_t& value) {
-            if (mType == kTypeInt32) {
-                u.int32Value += value;
-            } else {
-                mType = kTypeInt32;
-                u.int32Value = value;
-            }
-        }
-        template <>
-        void add(const int64_t& value) {
-            if (mType == kTypeInt64) {
-                u.int64Value += value;
-            } else {
-                mType = kTypeInt64;
-                u.int64Value = value;
-            }
-        }
-        template <>
-        void add(const double& value) {
-            if (mType == kTypeDouble) {
-                u.doubleValue += value;
-            } else {
-                mType = kTypeDouble;
-                u.doubleValue = value;
-            }
-        }
-        template <>
-        void add(const std::pair<int64_t, int64_t>& value) {
-            if (mType == kTypeRate) {
-                u.rate.first += value.first;
-                u.rate.second += value.second;
-            } else {
-                mType = kTypeRate;
-                u.rate = value;
-            }
-        }
-
-        status_t writeToParcel(Parcel *data) const;
-        status_t readFromParcel(const Parcel& data);
-        void toString(char *buffer, size_t length) const;
-        size_t getByteStringSize() const;
-        status_t writeToByteString(char **bufferpptr, char *bufferptrmax) const;
-        status_t readFromByteString(const char **bufferpptr, const char *bufferptrmax);
-
-    // TODO: make private (and consider converting to std::variant)
-    // private:
-        char *mName = nullptr;
-        Type mType = kTypeNone;
-        union u__ {
-            u__() { zero(); }
-            u__(u__ &&other) {
-                *this = std::move(other);
-            }
-            u__& operator=(u__ &&other) {
-                memcpy(this, &other, sizeof(*this));
-                other.zero();
-                return *this;
-            }
-            void zero() { memset(this, 0, sizeof(*this)); }
-
-            int32_t int32Value;
-            int64_t int64Value;
-            double doubleValue;
-            char *CStringValue;
-            std::pair<int64_t, int64_t> rate;
-        } u;
-    };
-
-    class iterator {
-    public:
-       iterator(size_t pos, const MediaAnalyticsItem &_item)
-           : i(std::min(pos, _item.count()))
-           , item(_item) { }
-       iterator &operator++() {
-           i = std::min(i + 1, item.count());
-           return *this;
-       }
-       bool operator!=(iterator &other) const {
-           return i != other.i;
-       }
-       Prop &operator*() const {
-           return item.mProps[i];
-       }
-
-    private:
-      size_t i;
-      const MediaAnalyticsItem &item;
-    };
-
-    iterator begin() const {
-        return iterator(0, *this);
-    }
-    iterator end() const {
-        return iterator(SIZE_MAX, *this);
-    }
-
-private:
-
-    // TODO: make prop management class
-    size_t findPropIndex(const char *name) const;
-    Prop *findProp(const char *name) const;
-    Prop *allocateProp();
-
-        enum {
-            kGrowProps = 10
-        };
-        bool growProps(int increment = kGrowProps);
-        Prop *allocateProp(const char *name);
-        bool removeProp(const char *name);
-    Prop *allocateProp(const std::string& name) { return allocateProp(name.c_str()); }
-
-        size_t mPropCount = 0;
-        size_t mPropSize = 0;
-        Prop *mProps = nullptr;
-
-    pid_t         mPid = -1;
-    uid_t         mUid = -1;
-    std::string   mPkgName;
-    int64_t       mPkgVersionCode = 0;
-    std::string   mKey{kKeyNone};
-    nsecs_t       mTimestamp = 0;
-};
-
-} // namespace android
-
-#endif
diff --git a/media/libmediametrics/include/MediaMetricsItem.h b/media/libmediametrics/include/MediaMetricsItem.h
new file mode 100644
index 0000000..dbbcaf9
--- /dev/null
+++ b/media/libmediametrics/include/MediaMetricsItem.h
@@ -0,0 +1,1038 @@
+/*
+ * 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_MEDIAMETRICSITEM_H
+#define ANDROID_MEDIA_MEDIAMETRICSITEM_H
+
+#include "MediaMetrics.h"
+
+#include <algorithm>
+#include <map>
+#include <string>
+#include <sys/types.h>
+#include <variant>
+
+#include <binder/Parcel.h>
+#include <cutils/properties.h>
+#include <utils/Errors.h>
+#include <utils/KeyedVector.h>
+#include <utils/RefBase.h>
+#include <utils/StrongPointer.h>
+#include <utils/Timers.h>
+
+namespace android {
+
+class IMediaMetricsService;
+class Parcel;
+
+/*
+ * MediaMetrics Item
+ *
+ * The MediaMetrics Item allows get/set operations and recording to the service.
+ *
+ * The MediaMetrics LogItem is a faster logging variant. It allows set operations only,
+ * and then recording to the service.
+ *
+ * The Byte String format is as follows:
+ *
+ * For Java
+ *  int64 corresponds to long
+ *  int32, uint32 corresponds to int
+ *  uint16 corresponds to char
+ *  uint8, int8 corresponds to byte
+ *
+ * For items transmitted from Java, uint8 and uint32 values are limited
+ * to INT8_MAX and INT32_MAX.  This constrains the size of large items
+ * to 2GB, which is consistent with ByteBuffer max size. A native item
+ * can conceivably have size of 4GB.
+ *
+ * Physical layout of integers and doubles within the MediaMetrics byte string
+ * is in Native / host order, which is usually little endian.
+ *
+ * Note that primitive data (ints, doubles) within a Byte String has
+ * no extra padding or alignment requirements, like ByteBuffer.
+ *
+ * -- begin of item
+ * -- begin of header
+ * (uint32) item size: including the item size field
+ * (uint32) header size, including the item size and header size fields.
+ * (uint16) version: exactly 0
+ * (uint16) key size, that is key strlen + 1 for zero termination.
+ * (int8)+ key, a string which is 0 terminated (UTF-8).
+ * (int32) pid
+ * (int32) uid
+ * (int64) timestamp
+ * -- end of header
+ * -- begin body
+ * (uint32) number of properties
+ * -- repeat for number of properties
+ *     (uint16) property size, including property size field itself
+ *     (uint8) type of property
+ *     (int8)+ key string, including 0 termination
+ *      based on type of property (given above), one of:
+ *       (int32)
+ *       (int64)
+ *       (double)
+ *       (int8)+ for TYPE_CSTRING, including 0 termination
+ *       (int64, int64) for rate
+ * -- end body
+ * -- end of item
+ *
+ * The Byte String format must match MediaMetrics.java.
+ */
+
+namespace mediametrics {
+
+// Type must match MediaMetrics.java
+enum Type {
+    kTypeNone = 0,
+    kTypeInt32 = 1,
+    kTypeInt64 = 2,
+    kTypeDouble = 3,
+    kTypeCString = 4,
+    kTypeRate = 5,
+};
+
+/**
+ * The MediaMetrics Item has special Item properties,
+ * derived internally or through dedicated setters.
+ *
+ * For consistency we use the following keys to represent
+ * these special Item properties when in a generic Bundle
+ * or in a std::map.
+ *
+ * These values must match MediaMetrics.java
+ */
+static inline constexpr const char *BUNDLE_TOTAL_SIZE = "_totalSize";
+static inline constexpr const char *BUNDLE_HEADER_SIZE = "_headerSize";
+static inline constexpr const char *BUNDLE_VERSION = "_version";
+static inline constexpr const char *BUNDLE_KEY_SIZE = "_keySize";
+static inline constexpr const char *BUNDLE_KEY = "_key";
+static inline constexpr const char *BUNDLE_PID = "_pid";
+static inline constexpr const char *BUNDLE_UID = "_uid";
+static inline constexpr const char *BUNDLE_TIMESTAMP = "_timestamp";
+static inline constexpr const char *BUNDLE_PROPERTY_COUNT = "_propertyCount";
+
+template<size_t N>
+static inline bool startsWith(const std::string &s, const char (&comp)[N]) {
+    return !strncmp(s.c_str(), comp, N - 1);
+}
+
+static inline bool startsWith(const std::string& s, const std::string& comp) {
+    return !strncmp(s.c_str(), comp.c_str(), comp.size() - 1);
+}
+
+/**
+ * Defers a function to run in the destructor.
+ *
+ * This helper class is used to log results on exit of a method.
+ */
+class Defer {
+public:
+    template <typename U>
+    Defer(U &&f) : mThunk(std::forward<U>(f)) {}
+    ~Defer() { mThunk(); }
+
+private:
+    const std::function<void()> mThunk;
+};
+
+/**
+ * Media Metrics BaseItem
+ *
+ * A base class which contains utility static functions to write to a byte stream
+ * and access the Media Metrics service.
+ */
+
+class BaseItem {
+    friend class MediaMetricsDeathNotifier; // for dropInstance
+    // enabled 1, disabled 0
+public:
+    // are we collecting metrics data
+    static bool isEnabled();
+    static sp<IMediaMetricsService> getService();
+
+protected:
+    static constexpr const char * const EnabledProperty = "media.metrics.enabled";
+    static constexpr const char * const EnabledPropertyPersist = "persist.media.metrics.enabled";
+    static const int EnabledProperty_default = 1;
+
+    // let's reuse a binder connection
+    static sp<IMediaMetricsService> sMediaMetricsService;
+
+    static void dropInstance();
+    static bool submitBuffer(const char *buffer, size_t len);
+
+    template <typename T>
+    struct is_item_type {
+        static constexpr inline bool value =
+             std::is_same<T, int32_t>::value
+             || std::is_same<T, int64_t>::value
+             || std::is_same<T, double>::value
+             || std::is_same<T, std::pair<int64_t, int64_t>>:: value
+             || std::is_same<T, std::string>::value
+             || std::is_same<T, std::monostate>::value;
+    };
+
+    template <typename T>
+    struct get_type_of {
+        static_assert(is_item_type<T>::value);
+        static constexpr inline Type value =
+             std::is_same<T, int32_t>::value ? kTypeInt32
+             : std::is_same<T, int64_t>::value ? kTypeInt64
+             : std::is_same<T, double>::value ? kTypeDouble
+             : std::is_same<T, std::pair<int64_t, int64_t>>:: value ? kTypeRate
+             : std::is_same<T, std::string>::value ? kTypeCString
+             : std::is_same<T, std::monostate>::value ? kTypeNone
+         : kTypeNone;
+    };
+
+    template <typename T>
+    static size_t sizeOfByteString(const char *name, const T& value) {
+        static_assert(is_item_type<T>::value);
+        return 2 + 1 + strlen(name) + 1 + sizeof(value);
+    }
+    template <> // static
+    size_t sizeOfByteString(const char *name, const std::string& value) {
+        return 2 + 1 + strlen(name) + 1 + value.size() + 1;
+    }
+    template <> // static
+    size_t sizeOfByteString(const char *name, const std::monostate&) {
+         return 2 + 1 + strlen(name) + 1;
+    }
+    // for speed
+    static size_t sizeOfByteString(const char *name, const char *value) {
+        return 2 + 1 + strlen(name) + 1 + strlen(value) + 1;
+    }
+
+    template <typename T>
+    static status_t insert(const T& val, char **bufferpptr, char *bufferptrmax) {
+        static_assert(std::is_trivially_constructible<T>::value);
+        const size_t size = sizeof(val);
+        if (*bufferpptr + size > bufferptrmax) {
+            ALOGE("%s: buffer exceeded with size %zu", __func__, size);
+            return BAD_VALUE;
+        }
+        memcpy(*bufferpptr, &val, size);
+        *bufferpptr += size;
+        return NO_ERROR;
+    }
+    template <> // static
+    status_t insert(const std::string& val, char **bufferpptr, char *bufferptrmax) {
+        const size_t size = val.size() + 1;
+        if (size > UINT16_MAX || *bufferpptr + size > bufferptrmax) {
+            ALOGE("%s: buffer exceeded with size %zu", __func__, size);
+            return BAD_VALUE;
+        }
+        memcpy(*bufferpptr, val.c_str(), size);
+        *bufferpptr += size;
+        return NO_ERROR;
+    }
+    template <> // static
+    status_t insert(const std::pair<int64_t, int64_t>& val,
+            char **bufferpptr, char *bufferptrmax) {
+        const size_t size = sizeof(val.first) + sizeof(val.second);
+        if (*bufferpptr + size > bufferptrmax) {
+            ALOGE("%s: buffer exceeded with size %zu", __func__, size);
+            return BAD_VALUE;
+        }
+        memcpy(*bufferpptr, &val.first, sizeof(val.first));
+        memcpy(*bufferpptr + sizeof(val.first), &val.second, sizeof(val.second));
+        *bufferpptr += size;
+        return NO_ERROR;
+    }
+    template <> // static
+    status_t insert(const std::monostate&, char **, char *) {
+        return NO_ERROR;
+    }
+    // for speed
+    static status_t insert(const char *val, char **bufferpptr, char *bufferptrmax) {
+        const size_t size = strlen(val) + 1;
+        if (size > UINT16_MAX || *bufferpptr + size > bufferptrmax) {
+            ALOGE("%s: buffer exceeded with size %zu", __func__, size);
+            return BAD_VALUE;
+        }
+        memcpy(*bufferpptr, val, size);
+        *bufferpptr += size;
+        return NO_ERROR;
+    }
+
+    template <typename T>
+    static status_t writeToByteString(
+            const char *name, const T& value, char **bufferpptr, char *bufferptrmax) {
+        static_assert(is_item_type<T>::value);
+        const size_t len = sizeOfByteString(name, value);
+        if (len > UINT16_MAX) return BAD_VALUE;
+        return insert((uint16_t)len, bufferpptr, bufferptrmax)
+                ?: insert((uint8_t)get_type_of<T>::value, bufferpptr, bufferptrmax)
+                ?: insert(name, bufferpptr, bufferptrmax)
+                ?: insert(value, bufferpptr, bufferptrmax);
+    }
+    // for speed
+    static status_t writeToByteString(
+            const char *name, const char *value, char **bufferpptr, char *bufferptrmax) {
+        const size_t len = sizeOfByteString(name, value);
+        if (len > UINT16_MAX) return BAD_VALUE;
+        return insert((uint16_t)len, bufferpptr, bufferptrmax)
+                ?: insert((uint8_t)kTypeCString, bufferpptr, bufferptrmax)
+                ?: insert(name, bufferpptr, bufferptrmax)
+                ?: insert(value, bufferpptr, bufferptrmax);
+    }
+
+    template <typename T>
+    static void toStringBuffer(
+            const char *name, const T& value, char *buffer, size_t length) = delete;
+    template <> // static
+    void toStringBuffer(
+            const char *name, const int32_t& value, char *buffer, size_t length) {
+        snprintf(buffer, length, "%s=%d:", name, value);
+    }
+    template <> // static
+    void toStringBuffer(
+            const char *name, const int64_t& value, char *buffer, size_t length) {
+        snprintf(buffer, length, "%s=%lld:", name, (long long)value);
+    }
+    template <> // static
+    void toStringBuffer(
+            const char *name, const double& value, char *buffer, size_t length) {
+        snprintf(buffer, length, "%s=%e:", name, value);
+    }
+    template <> // static
+    void toStringBuffer(
+            const char *name, const std::pair<int64_t, int64_t>& value,
+            char *buffer, size_t length) {
+        snprintf(buffer, length, "%s=%lld/%lld:",
+                name, (long long)value.first, (long long)value.second);
+    }
+    template <> // static
+    void toStringBuffer(
+            const char *name, const std::string& value, char *buffer, size_t length) {
+        // TODO sanitize string for ':' '='
+        snprintf(buffer, length, "%s=%s:", name, value.c_str());
+    }
+    template <> // static
+    void toStringBuffer(
+            const char *name, const std::monostate&, char *buffer, size_t length) {
+        snprintf(buffer, length, "%s=():", name);
+    }
+
+    template <typename T>
+    static status_t writeToParcel(
+            const char *name, const T& value, Parcel *parcel) = delete;
+    template <> // static
+    status_t writeToParcel(
+            const char *name, const int32_t& value, Parcel *parcel) {
+        return parcel->writeCString(name)
+               ?: parcel->writeInt32(get_type_of<int32_t>::value)
+               ?: parcel->writeInt32(value);
+    }
+    template <> // static
+    status_t writeToParcel(
+            const char *name, const int64_t& value, Parcel *parcel) {
+        return parcel->writeCString(name)
+               ?: parcel->writeInt32(get_type_of<int64_t>::value)
+               ?: parcel->writeInt64(value);
+    }
+    template <> // static
+    status_t writeToParcel(
+            const char *name, const double& value, Parcel *parcel) {
+        return parcel->writeCString(name)
+               ?: parcel->writeInt32(get_type_of<double>::value)
+               ?: parcel->writeDouble(value);
+    }
+    template <> // static
+    status_t writeToParcel(
+            const char *name, const std::pair<int64_t, int64_t>& value, Parcel *parcel) {
+        return parcel->writeCString(name)
+               ?: parcel->writeInt32(get_type_of< std::pair<int64_t, int64_t>>::value)
+               ?: parcel->writeInt64(value.first)
+               ?: parcel->writeInt64(value.second);
+    }
+    template <> // static
+    status_t writeToParcel(
+            const char *name, const std::string& value, Parcel *parcel) {
+        return parcel->writeCString(name)
+               ?: parcel->writeInt32(get_type_of<std::string>::value)
+               ?: parcel->writeCString(value.c_str());
+    }
+    template <> // static
+    status_t writeToParcel(
+            const char *name, const std::monostate&, Parcel *parcel) {
+        return parcel->writeCString(name)
+               ?: parcel->writeInt32(get_type_of<std::monostate>::value);
+    }
+
+    template <typename T>
+    static status_t extract(T *val, const char **bufferpptr, const char *bufferptrmax) {
+        static_assert(std::is_trivially_constructible<T>::value);
+        const size_t size = sizeof(*val);
+        if (*bufferpptr + size > bufferptrmax) {
+            ALOGE("%s: buffer exceeded with size %zu", __func__, size);
+            return BAD_VALUE;
+        }
+        memcpy(val, *bufferpptr, size);
+        *bufferpptr += size;
+        return NO_ERROR;
+    }
+    template <> // static
+    status_t extract(std::string *val, const char **bufferpptr, const char *bufferptrmax) {
+        const char *ptr = *bufferpptr;
+        while (*ptr != 0) {
+            if (ptr >= bufferptrmax) {
+                ALOGE("%s: buffer exceeded", __func__);
+                return BAD_VALUE;
+            }
+            ++ptr;
+        }
+        const size_t size = (ptr - *bufferpptr) + 1;
+        *val = *bufferpptr;
+        *bufferpptr += size;
+        return NO_ERROR;
+    }
+    template <> // static
+    status_t extract(std::pair<int64_t, int64_t> *val,
+            const char **bufferpptr, const char *bufferptrmax) {
+        const size_t size = sizeof(val->first) + sizeof(val->second);
+        if (*bufferpptr + size > bufferptrmax) {
+            ALOGE("%s: buffer exceeded with size %zu", __func__, size);
+            return BAD_VALUE;
+        }
+        memcpy(&val->first, *bufferpptr, sizeof(val->first));
+        memcpy(&val->second, *bufferpptr + sizeof(val->first), sizeof(val->second));
+        *bufferpptr += size;
+        return NO_ERROR;
+    }
+    template <> // static
+    status_t extract(std::monostate *, const char **, const char *) {
+        return NO_ERROR;
+    }
+};
+
+/**
+ * Media Metrics BufferedItem
+ *
+ * A base class which represents a put-only Media Metrics item, storing
+ * the Media Metrics data in a buffer with begin and end pointers.
+ *
+ * If a property key is entered twice, it will be stored in the buffer twice,
+ * and (implementation defined) the last value for that key will be used
+ * by the Media Metrics service.
+ *
+ * For realloc, a baseRealloc pointer must be passed in either explicitly
+ * or implicitly in the constructor. This will be updated with the value used on realloc.
+ */
+class BufferedItem : public BaseItem {
+public:
+    static inline constexpr uint16_t kVersion = 0;
+
+    virtual ~BufferedItem() = default;
+    BufferedItem(const BufferedItem&) = delete;
+    BufferedItem& operator=(const BufferedItem&) = delete;
+
+    BufferedItem(const std::string key, char *begin, char *end)
+        : BufferedItem(key.c_str(), begin, end) { }
+
+    BufferedItem(const char *key, char *begin, char *end)
+        : BufferedItem(key, begin, end, nullptr) { }
+
+    BufferedItem(const char *key, char **begin, char *end)
+        : BufferedItem(key, *begin, end, begin) { }
+
+    BufferedItem(const char *key, char *begin, char *end, char **baseRealloc)
+        : mBegin(begin)
+        , mEnd(end)
+        , mBaseRealloc(baseRealloc)
+    {
+        init(key);
+    }
+
+    template<typename T>
+    BufferedItem &set(const char *key, const T& value) {
+        reallocFor(sizeOfByteString(key, value));
+        if (mStatus == NO_ERROR) {
+            mStatus = BaseItem::writeToByteString(key, value, &mBptr, mEnd);
+            ++mPropCount;
+        }
+        return *this;
+    }
+
+    template<typename T>
+    BufferedItem &set(const std::string& key, const T& value) {
+        return set(key.c_str(), value);
+    }
+
+    BufferedItem &setPid(pid_t pid) {
+        if (mStatus == NO_ERROR) {
+            copyTo(mBegin + mHeaderLen - 16, (int32_t)pid);
+        }
+        return *this;
+    }
+
+    BufferedItem &setUid(uid_t uid) {
+        if (mStatus == NO_ERROR) {
+            copyTo(mBegin + mHeaderLen - 12, (int32_t)uid);
+        }
+        return *this;
+    }
+
+    BufferedItem &setTimestamp(nsecs_t timestamp) {
+        if (mStatus == NO_ERROR) {
+            copyTo(mBegin + mHeaderLen - 8, (int64_t)timestamp);
+        }
+        return *this;
+    }
+
+    bool record() {
+        return updateHeader()
+                && BaseItem::submitBuffer(getBuffer(), getLength());
+    }
+
+    bool isValid () const {
+        return mStatus == NO_ERROR;
+    }
+
+    char *getBuffer() const { return mBegin; }
+    size_t getLength() const { return mBptr - mBegin; }
+    size_t getRemaining() const { return mEnd - mBptr; }
+    size_t getCapacity() const { return mEnd - mBegin; }
+
+    bool updateHeader() {
+        if (mStatus != NO_ERROR) return false;
+        copyTo(mBegin + 0, (uint32_t)getLength());
+        copyTo(mBegin + 4, (uint32_t)mHeaderLen);
+        copyTo(mBegin + mHeaderLen, (uint32_t)mPropCount);
+        return true;
+    }
+
+protected:
+    BufferedItem() = default;
+
+    void reallocFor(size_t required) {
+        if (mStatus != NO_ERROR) return;
+        const size_t remaining = getRemaining();
+        if (required <= remaining) return;
+        if (mBaseRealloc == nullptr) {
+            mStatus = NO_MEMORY;
+            return;
+        }
+
+        const size_t current = getLength();
+        size_t minimum = current + required;
+        if (minimum > SSIZE_MAX >> 1) {
+            mStatus = NO_MEMORY;
+            return;
+        }
+        minimum <<= 1;
+        void *newptr = realloc(*mBaseRealloc, minimum);
+        if (newptr == nullptr) {
+            mStatus = NO_MEMORY;
+            return;
+        }
+        if (newptr != *mBaseRealloc) {
+            // ALOGD("base changed! current:%zu new size %zu", current, minimum);
+            if (*mBaseRealloc == nullptr) {
+                memcpy(newptr, mBegin, current);
+            }
+            mBegin = (char *)newptr;
+            *mBaseRealloc = mBegin;
+            mEnd = mBegin + minimum;
+            mBptr = mBegin + current;
+        } else {
+            // ALOGD("base kept! current:%zu new size %zu", current, minimum);
+            mEnd = mBegin + minimum;
+        }
+    }
+    template<typename T>
+    void copyTo(char *ptr, const T& value) {
+        memcpy(ptr, &value, sizeof(value));
+    }
+
+    void init(const char *key) {
+        mBptr = mBegin;
+        const size_t keylen = strlen(key) + 1;
+        mHeaderLen = 4 + 4 + 2 + 2 + keylen + 4 + 4 + 8;
+        reallocFor(mHeaderLen);
+        if (mStatus != NO_ERROR) return;
+        mBptr = mBegin + mHeaderLen + 4; // this includes propcount.
+
+        if (mEnd < mBptr || keylen > UINT16_MAX) {
+           mStatus = NO_MEMORY;
+           mBptr = mEnd;
+           return;
+        }
+        copyTo(mBegin + 8, kVersion);
+        copyTo(mBegin + 10, (uint16_t)keylen);
+        strcpy(mBegin + 12, key);
+
+        // initialize some parameters (that could be overridden)
+        setPid(-1);
+        setUid(-1);
+        setTimestamp(0);
+    }
+
+    char *mBegin = nullptr;
+    char *mEnd = nullptr;
+    char **mBaseRealloc = nullptr;  // set to an address if realloc should be done.
+                                    // upon return, that pointer is updated with
+                                    // whatever needs to be freed.
+    char *mBptr = nullptr;
+    status_t mStatus = NO_ERROR;
+    uint32_t mPropCount = 0;
+    uint32_t mHeaderLen = 0;
+};
+
+/**
+ * MediaMetrics LogItem is a stack allocated mediametrics item used for
+ * fast logging.  It falls over to a malloc if needed.
+ *
+ * This is templated with a buffer size to allocate on the stack.
+ */
+template <size_t N = 4096>
+class LogItem : public BufferedItem {
+public:
+    explicit LogItem(const std::string key) : LogItem(key.c_str()) { }
+
+    // Since this class will not be defined before the base class, we initialize variables
+    // in our own order.
+    explicit LogItem(const char *key) {
+         mBegin = mBuffer;
+         mEnd = mBuffer + N;
+         mBaseRealloc = &mReallocPtr;
+         init(key);
+    }
+
+    ~LogItem() override {
+        if (mReallocPtr != nullptr) { // do the check before calling free to avoid overhead.
+            free(mReallocPtr);
+        }
+    }
+
+private:
+    char *mReallocPtr = nullptr;  // set non-null by base class if realloc happened.
+    char mBuffer[N];
+};
+
+
+/**
+ * Media Metrics Item
+ *
+ * A mutable item representing an event or record that will be
+ * logged with the Media Metrics service.  For client logging, one should
+ * use the mediametrics::Item.
+ *
+ * The Item is designed for the service as it has getters.
+ */
+class Item final : public mediametrics::BaseItem {
+public:
+
+    class Prop {
+    public:
+        using Elem = std::variant<
+                std::monostate,               // kTypeNone
+                int32_t,                      // kTypeInt32
+                int64_t,                      // kTypeInt64
+                double,                       // kTypeDouble
+                std::string,                  // kTypeCString
+                std::pair<int64_t, int64_t>   // kTypeRate
+                >;
+
+        Prop() = default;
+        Prop(const Prop& other) {
+           *this = other;
+        }
+        Prop& operator=(const Prop& other) {
+            mName = other.mName;
+            mElem = other.mElem;
+            return *this;
+        }
+        Prop(Prop&& other) {
+            *this = std::move(other);
+        }
+        Prop& operator=(Prop&& other) {
+            mName = std::move(other.mName);
+            mElem = std::move(other.mElem);
+            return *this;
+        }
+
+        bool operator==(const Prop& other) const {
+            return mName == other.mName && mElem == other.mElem;
+        }
+        bool operator!=(const Prop& other) const {
+            return !(*this == other);
+        }
+
+        void clear() {
+            mName.clear();
+            mElem = std::monostate{};
+        }
+        void clearValue() {
+            mElem = std::monostate{};
+        }
+
+        const char *getName() const {
+            return mName.c_str();
+        }
+
+        void swap(Prop& other) {
+            std::swap(mName, other.mName);
+            std::swap(mElem, other.mElem);
+        }
+
+        void setName(const char *name) {
+            mName = name;
+        }
+
+        bool isNamed(const char *name) const {
+            return mName == name;
+        }
+
+        template <typename T> void visit(T f) const {
+            std::visit(f, mElem);
+        }
+
+        template <typename T> bool get(T *value) const {
+            auto pval = std::get_if<T>(&mElem);
+            if (pval != nullptr) {
+                *value = *pval;
+                return true;
+            }
+            return false;
+        }
+
+        const Elem& get() const {
+            return mElem;
+        }
+
+        template <typename T> void set(const T& value) {
+            mElem = value;
+        }
+
+        template <typename T> void add(const T& value) {
+            auto pval = std::get_if<T>(&mElem);
+            if (pval != nullptr) {
+                *pval += value;
+            } else {
+                mElem = value;
+            }
+        }
+
+        template <> void add(const std::pair<int64_t, int64_t>& value) {
+            auto pval = std::get_if<std::pair<int64_t, int64_t>>(&mElem);
+            if (pval != nullptr) {
+                pval->first += value.first;
+                pval->second += value.second;
+            } else {
+                mElem = value;
+            }
+        }
+
+        status_t writeToParcel(Parcel *parcel) const {
+            return std::visit([this, parcel](auto &value) {
+                    return BaseItem::writeToParcel(mName.c_str(), value, parcel);}, mElem);
+        }
+
+        void toStringBuffer(char *buffer, size_t length) const {
+            return std::visit([this, buffer, length](auto &value) {
+                BaseItem::toStringBuffer(mName.c_str(), value, buffer, length);}, mElem);
+        }
+
+        size_t getByteStringSize() const {
+            return std::visit([this](auto &value) {
+                return BaseItem::sizeOfByteString(mName.c_str(), value);}, mElem);
+        }
+
+        status_t writeToByteString(char **bufferpptr, char *bufferptrmax) const {
+            return std::visit([this, bufferpptr, bufferptrmax](auto &value) {
+                return BaseItem::writeToByteString(mName.c_str(), value, bufferpptr, bufferptrmax);
+            }, mElem);
+        }
+
+        status_t readFromParcel(const Parcel& data);
+
+        status_t readFromByteString(const char **bufferpptr, const char *bufferptrmax);
+
+    private:
+        std::string mName;
+        Elem mElem;
+    };
+
+    // Iteration of props within item
+    class iterator {
+    public:
+        iterator(const std::map<std::string, Prop>::const_iterator &_it) : it(_it) { }
+        iterator &operator++() {
+            ++it;
+            return *this;
+        }
+        bool operator!=(iterator &other) const {
+            return it != other.it;
+        }
+        const Prop &operator*() const {
+            return it->second;
+        }
+
+    private:
+        std::map<std::string, Prop>::const_iterator it;
+    };
+
+    iterator begin() const {
+        return iterator(mProps.cbegin());
+    }
+
+    iterator end() const {
+        return iterator(mProps.cend());
+    }
+
+        enum {
+            PROTO_V0 = 0,
+            PROTO_FIRST = PROTO_V0,
+            PROTO_V1 = 1,
+            PROTO_LAST = PROTO_V1,
+        };
+
+    // T must be convertible to mKey
+    template <typename T>
+    explicit Item(T key)
+        : mKey(key) { }
+    Item() = default;
+
+    // We enable default copy and move constructors and make this class final
+    // to prevent a derived class; this avoids possible data slicing.
+    Item(const Item& other) = default;
+    Item(Item&& other) = default;
+    Item& operator=(const Item& other) = default;
+    Item& operator=(Item&& other) = default;
+
+    bool operator==(const Item& other) const {
+        return mPid == other.mPid
+            && mUid == other.mUid
+            && mPkgName == other.mPkgName
+            && mPkgVersionCode == other.mPkgVersionCode
+            && mKey == other.mKey
+            && mTimestamp == other.mTimestamp
+            && mProps == other.mProps
+            ;
+    }
+    bool operator!=(const Item& other) const {
+        return !(*this == other);
+    }
+
+    template <typename T>
+    static Item* create(T key) {
+        return new Item(key);
+    }
+    static Item* create() {
+        return new Item();
+    }
+
+        static Item* convert(mediametrics_handle_t);
+        static mediametrics_handle_t convert(Item *);
+
+        // access functions for the class
+        ~Item();
+
+    void clear() {
+        mPid = -1;
+        mUid = -1;
+        mPkgName.clear();
+        mPkgVersionCode = 0;
+        mTimestamp = 0;
+        mKey.clear();
+        mProps.clear();
+    }
+
+    Item *dup() const { return new Item(*this); }
+
+    Item &setKey(const char *key) {
+        mKey = key;
+        return *this;
+    }
+    const std::string& getKey() const { return mKey; }
+
+    // # of properties in the record
+    size_t count() const { return mProps.size(); }
+
+    template<typename S, typename T>
+    Item &set(S key, T value) {
+        findOrAllocateProp(key).set(value);
+        return *this;
+    }
+
+    // set values appropriately
+    Item &setInt32(const char *key, int32_t value) {
+        return set(key, value);
+    }
+    Item &setInt64(const char *key, int64_t value) {
+        return set(key, value);
+    }
+    Item &setDouble(const char *key, double value) {
+        return set(key, value);
+    }
+    Item &setRate(const char *key, int64_t count, int64_t duration) {
+        return set(key, std::make_pair(count, duration));
+    }
+    Item &setCString(const char *key, const char *value) {
+        return set(key, value);
+    }
+
+    // fused get/add/set; if attr wasn't there, it's a simple set.
+    // type-mismatch counts as "wasn't there".
+    template<typename S, typename T>
+    Item &add(S key, T value) {
+        findOrAllocateProp(key).add(value);
+        return *this;
+    }
+
+    Item &addInt32(const char *key, int32_t value) {
+        return add(key, value);
+    }
+    Item &addInt64(const char *key, int64_t value) {
+        return add(key, value);
+    }
+    Item &addDouble(const char *key, double value) {
+        return add(key, value);
+    }
+    Item &addRate(const char *key, int64_t count, int64_t duration) {
+        return add(key, std::make_pair(count, duration));
+    }
+
+    // find & extract values
+    // return indicates whether attr exists (and thus value filled in)
+    // NULL parameter value suppresses storage of value.
+    template<typename S, typename T>
+    bool get(S key, T *value) const {
+        const Prop *prop = findProp(key);
+        return prop != nullptr && prop->get(value);
+    }
+
+    bool getInt32(const char *key, int32_t *value) const {
+        return get(key, value);
+    }
+    bool getInt64(const char *key, int64_t *value) const {
+        return get(key, value);
+    }
+    bool getDouble(const char *key, double *value) const {
+        return get(key, value);
+    }
+    bool getRate(const char *key, int64_t *count, int64_t *duration, double *rate) const {
+        std::pair<int64_t, int64_t> value;
+        if (!get(key, &value)) return false;
+        if (count != nullptr) *count = value.first;
+        if (duration != nullptr) *duration = value.second;
+        if (rate != nullptr) {
+            if (value.second != 0) {
+                *rate = (double)value.first / value.second;  // TODO: isn't INF OK?
+            } else {
+                *rate = 0.;
+            }
+        }
+        return true;
+    }
+    // Caller owns the returned string
+    bool getCString(const char *key, char **value) const {
+        std::string s;
+        if (get(key, &s)) {
+            *value = strdup(s.c_str());
+            return true;
+        }
+        return false;
+    }
+    bool getString(const char *key, std::string *value) const {
+        return get(key, value);
+    }
+
+    const Prop::Elem* get(const char *key) const {
+        const Prop *prop = findProp(key);
+        return prop == nullptr ? nullptr : &prop->get();
+    }
+
+        // Deliver the item to MediaMetrics
+        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'
+    size_t filter(size_t count, const char *attrs[]);
+    size_t filterNot(size_t count, const char *attrs[]);
+    size_t filter(const char *attr) { return filter(1, &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'
+        Item &setTimestamp(nsecs_t);
+        nsecs_t getTimestamp() const;
+
+        Item &setPid(pid_t);
+        pid_t getPid() const;
+
+        Item &setUid(uid_t);
+        uid_t getUid() const;
+
+        Item &setPkgName(const std::string &pkgName);
+        std::string getPkgName() const { return mPkgName; }
+
+        Item &setPkgVersionCode(int64_t);
+        int64_t getPkgVersionCode() const;
+
+    // our serialization code for binder calls
+    status_t writeToParcel(Parcel *) const;
+    status_t readFromParcel(const Parcel&);
+
+    status_t writeToByteString(char **bufferptr, size_t *length) const;
+    status_t readFromByteString(const char *bufferptr, size_t length);
+
+
+        std::string toString() const;
+        std::string toString(int version) const;
+        const char *toCString();
+        const char *toCString(int version);
+
+private:
+    // handle Parcel version 0
+    int32_t writeToParcel0(Parcel *) const;
+    int32_t readFromParcel0(const Parcel&);
+
+    const Prop *findProp(const char *key) const {
+        auto it = mProps.find(key);
+        return it != mProps.end() ? &it->second : nullptr;
+    }
+
+    Prop &findOrAllocateProp(const char *key) {
+        auto it = mProps.find(key);
+        if (it != mProps.end()) return it->second;
+        Prop &prop = mProps[key];
+        prop.setName(key);
+        return prop;
+    }
+
+    // Changes to member variables below require changes to clear().
+    pid_t         mPid = -1;
+    uid_t         mUid = -1;
+    std::string   mPkgName;
+    int64_t       mPkgVersionCode = 0;
+    std::string   mKey;
+    nsecs_t       mTimestamp = 0;
+    std::map<std::string, Prop> mProps;
+};
+
+} // namespace mediametrics
+} // namespace android
+
+#endif // ANDROID_MEDIA_MEDIAMETRICSITEM_H
diff --git a/media/libmediaplayerservice/MediaRecorderClient.cpp b/media/libmediaplayerservice/MediaRecorderClient.cpp
index c61ed1b..9b1974b 100644
--- a/media/libmediaplayerservice/MediaRecorderClient.cpp
+++ b/media/libmediaplayerservice/MediaRecorderClient.cpp
@@ -138,6 +138,29 @@
     return mRecorder->setAudioSource((audio_source_t)as);
 }
 
+status_t MediaRecorderClient::setPrivacySensitive(bool privacySensitive)
+{
+    ALOGV("%s(%s)", __func__, privacySensitive ? "true" : "false");
+    Mutex::Autolock lock(mLock);
+    if (mRecorder == NULL)  {
+        ALOGE("%s: recorder is not initialized", __func__);
+        return NO_INIT;
+    }
+    return mRecorder->setPrivacySensitive(privacySensitive);
+}
+
+status_t MediaRecorderClient::isPrivacySensitive(bool *privacySensitive) const
+{
+    Mutex::Autolock lock(mLock);
+    if (mRecorder == NULL)  {
+        ALOGE("%s: recorder is not initialized", __func__);
+        return NO_INIT;
+    }
+    status_t status = mRecorder->isPrivacySensitive(privacySensitive);
+    ALOGV("%s: status: %d enabled: %s", __func__, status, *privacySensitive ? "true" : "false");
+    return status;
+}
+
 status_t MediaRecorderClient::setOutputFormat(int of)
 {
     ALOGV("setOutputFormat(%d)", of);
diff --git a/media/libmediaplayerservice/MediaRecorderClient.h b/media/libmediaplayerservice/MediaRecorderClient.h
index 9e0f877..12257e5 100644
--- a/media/libmediaplayerservice/MediaRecorderClient.h
+++ b/media/libmediaplayerservice/MediaRecorderClient.h
@@ -51,6 +51,8 @@
     virtual     status_t   setPreviewSurface(const sp<IGraphicBufferProducer>& surface);
     virtual     status_t   setVideoSource(int vs);
     virtual     status_t   setAudioSource(int as);
+                status_t   setPrivacySensitive(bool privacySensitive) override;
+                status_t   isPrivacySensitive(bool *privacySensitive) const override;
     virtual     status_t   setOutputFormat(int of);
     virtual     status_t   setVideoEncoder(int ve);
     virtual     status_t   setAudioEncoder(int ae);
@@ -98,7 +100,7 @@
     sp<AudioDeviceUpdatedNotifier> mAudioDeviceUpdatedNotifier;
 
     pid_t                  mPid;
-    Mutex                  mLock;
+    mutable Mutex          mLock;
     MediaRecorderBase      *mRecorder;
     sp<MediaPlayerService> mMediaPlayerService;
 };
diff --git a/media/libmediaplayerservice/StagefrightRecorder.cpp b/media/libmediaplayerservice/StagefrightRecorder.cpp
index 954ccc9..c10e6e0 100644
--- a/media/libmediaplayerservice/StagefrightRecorder.cpp
+++ b/media/libmediaplayerservice/StagefrightRecorder.cpp
@@ -31,7 +31,7 @@
 #include <binder/IServiceManager.h>
 
 #include <media/IMediaPlayerService.h>
-#include <media/MediaAnalyticsItem.h>
+#include <media/MediaMetricsItem.h>
 #include <media/stagefright/foundation/ABuffer.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/AMessage.h>
@@ -115,6 +115,7 @@
       mWriter(NULL),
       mOutputFd(-1),
       mAudioSource((audio_source_t)AUDIO_SOURCE_CNT), // initialize with invalid value
+      mPrivacySensitive(PRIVACY_SENSITIVE_DEFAULT),
       mVideoSource(VIDEO_SOURCE_LIST_END),
       mStarted(false),
       mSelectedDeviceId(AUDIO_PORT_HANDLE_NONE),
@@ -137,7 +138,7 @@
     }
 
     // log the current record, provided it has some information worth recording
-    // NB: this also reclaims & clears mAnalyticsItem.
+    // NB: this also reclaims & clears mMetricsItem.
     flushAndResetMetrics(false);
 }
 
@@ -146,69 +147,69 @@
 
     // we run as part of the media player service; what we really want to
     // know is the app which requested the recording.
-    mAnalyticsItem->setUid(mClientUid);
+    mMetricsItem->setUid(mClientUid);
 
     // populate the values from the raw fields.
 
     // TBD mOutputFormat  = OUTPUT_FORMAT_THREE_GPP;
     // TBD mAudioEncoder  = AUDIO_ENCODER_AMR_NB;
     // TBD mVideoEncoder  = VIDEO_ENCODER_DEFAULT;
-    mAnalyticsItem->setInt32(kRecorderHeight, mVideoHeight);
-    mAnalyticsItem->setInt32(kRecorderWidth, mVideoWidth);
-    mAnalyticsItem->setInt32(kRecorderFrameRate, mFrameRate);
-    mAnalyticsItem->setInt32(kRecorderVideoBitrate, mVideoBitRate);
-    mAnalyticsItem->setInt32(kRecorderAudioSampleRate, mSampleRate);
-    mAnalyticsItem->setInt32(kRecorderAudioChannels, mAudioChannels);
-    mAnalyticsItem->setInt32(kRecorderAudioBitrate, mAudioBitRate);
+    mMetricsItem->setInt32(kRecorderHeight, mVideoHeight);
+    mMetricsItem->setInt32(kRecorderWidth, mVideoWidth);
+    mMetricsItem->setInt32(kRecorderFrameRate, mFrameRate);
+    mMetricsItem->setInt32(kRecorderVideoBitrate, mVideoBitRate);
+    mMetricsItem->setInt32(kRecorderAudioSampleRate, mSampleRate);
+    mMetricsItem->setInt32(kRecorderAudioChannels, mAudioChannels);
+    mMetricsItem->setInt32(kRecorderAudioBitrate, mAudioBitRate);
     // TBD mInterleaveDurationUs = 0;
-    mAnalyticsItem->setInt32(kRecorderVideoIframeInterval, mIFramesIntervalSec);
+    mMetricsItem->setInt32(kRecorderVideoIframeInterval, mIFramesIntervalSec);
     // TBD mAudioSourceNode = 0;
     // TBD mUse64BitFileOffset = false;
     if (mMovieTimeScale != -1)
-        mAnalyticsItem->setInt32(kRecorderMovieTimescale, mMovieTimeScale);
+        mMetricsItem->setInt32(kRecorderMovieTimescale, mMovieTimeScale);
     if (mAudioTimeScale != -1)
-        mAnalyticsItem->setInt32(kRecorderAudioTimescale, mAudioTimeScale);
+        mMetricsItem->setInt32(kRecorderAudioTimescale, mAudioTimeScale);
     if (mVideoTimeScale != -1)
-        mAnalyticsItem->setInt32(kRecorderVideoTimescale, mVideoTimeScale);
+        mMetricsItem->setInt32(kRecorderVideoTimescale, mVideoTimeScale);
     // TBD mCameraId        = 0;
     // TBD mStartTimeOffsetMs = -1;
-    mAnalyticsItem->setInt32(kRecorderVideoProfile, mVideoEncoderProfile);
-    mAnalyticsItem->setInt32(kRecorderVideoLevel, mVideoEncoderLevel);
+    mMetricsItem->setInt32(kRecorderVideoProfile, mVideoEncoderProfile);
+    mMetricsItem->setInt32(kRecorderVideoLevel, mVideoEncoderLevel);
     // TBD mMaxFileDurationUs = 0;
     // TBD mMaxFileSizeBytes = 0;
     // TBD mTrackEveryTimeDurationUs = 0;
-    mAnalyticsItem->setInt32(kRecorderCaptureFpsEnable, mCaptureFpsEnable);
-    mAnalyticsItem->setDouble(kRecorderCaptureFps, mCaptureFps);
+    mMetricsItem->setInt32(kRecorderCaptureFpsEnable, mCaptureFpsEnable);
+    mMetricsItem->setDouble(kRecorderCaptureFps, mCaptureFps);
     // TBD mCameraSourceTimeLapse = NULL;
     // TBD mMetaDataStoredInVideoBuffers = kMetadataBufferTypeInvalid;
     // TBD mEncoderProfiles = MediaProfiles::getInstance();
-    mAnalyticsItem->setInt32(kRecorderRotation, mRotationDegrees);
+    mMetricsItem->setInt32(kRecorderRotation, mRotationDegrees);
     // PII mLatitudex10000 = -3600000;
     // PII mLongitudex10000 = -3600000;
     // TBD mTotalBitRate = 0;
 
     // duration information (recorded, paused, # of pauses)
-    mAnalyticsItem->setInt64(kRecorderDurationMs, (mDurationRecordedUs+500)/1000 );
+    mMetricsItem->setInt64(kRecorderDurationMs, (mDurationRecordedUs+500)/1000 );
     if (mNPauses != 0) {
-        mAnalyticsItem->setInt64(kRecorderPaused, (mDurationPausedUs+500)/1000 );
-        mAnalyticsItem->setInt32(kRecorderNumPauses, mNPauses);
+        mMetricsItem->setInt64(kRecorderPaused, (mDurationPausedUs+500)/1000 );
+        mMetricsItem->setInt32(kRecorderNumPauses, mNPauses);
     }
 }
 
 void StagefrightRecorder::flushAndResetMetrics(bool reinitialize) {
     ALOGV("flushAndResetMetrics");
     // flush anything we have, maybe setup a new record
-    if (mAnalyticsDirty && mAnalyticsItem != NULL) {
+    if (mAnalyticsDirty && mMetricsItem != NULL) {
         updateMetrics();
-        if (mAnalyticsItem->count() > 0) {
-            mAnalyticsItem->selfrecord();
+        if (mMetricsItem->count() > 0) {
+            mMetricsItem->selfrecord();
         }
-        delete mAnalyticsItem;
-        mAnalyticsItem = NULL;
+        delete mMetricsItem;
+        mMetricsItem = NULL;
     }
     mAnalyticsDirty = false;
     if (reinitialize) {
-        mAnalyticsItem = MediaAnalyticsItem::create(kKeyRecorder);
+        mMetricsItem = mediametrics::Item::create(kKeyRecorder);
     }
 }
 
@@ -238,7 +239,31 @@
     } else {
         mAudioSource = as;
     }
+    // Reset privacy sensitive in case this is the second time audio source is set
+    mPrivacySensitive = PRIVACY_SENSITIVE_DEFAULT;
+    return OK;
+}
 
+status_t StagefrightRecorder::setPrivacySensitive(bool privacySensitive) {
+    // privacy sensitive cannot be set before audio source is set
+    if (mAudioSource == AUDIO_SOURCE_CNT) {
+        return INVALID_OPERATION;
+    }
+    mPrivacySensitive = privacySensitive ? PRIVACY_SENSITIVE_ENABLED : PRIVACY_SENSITIVE_DISABLED;
+    return OK;
+}
+
+status_t StagefrightRecorder::isPrivacySensitive(bool *privacySensitive) const {
+    *privacySensitive = false;
+    if (mAudioSource == AUDIO_SOURCE_CNT) {
+        return INVALID_OPERATION;
+    }
+    if (mPrivacySensitive == PRIVACY_SENSITIVE_DEFAULT) {
+         *privacySensitive = mAudioSource == AUDIO_SOURCE_VOICE_COMMUNICATION
+                || mAudioSource == AUDIO_SOURCE_CAMCORDER;
+    } else {
+        *privacySensitive = mPrivacySensitive == PRIVACY_SENSITIVE_ENABLED;
+    }
     return OK;
 }
 
@@ -1082,9 +1107,35 @@
         }
     }
 
+    audio_attributes_t attr = AUDIO_ATTRIBUTES_INITIALIZER;
+    attr.source = mAudioSource;
+    // attr.flags AUDIO_FLAG_CAPTURE_PRIVATE is cleared by default
+    if (mPrivacySensitive == PRIVACY_SENSITIVE_DEFAULT) {
+        if (attr.source == AUDIO_SOURCE_VOICE_COMMUNICATION
+                || attr.source == AUDIO_SOURCE_CAMCORDER) {
+            attr.flags |= AUDIO_FLAG_CAPTURE_PRIVATE;
+            mPrivacySensitive = PRIVACY_SENSITIVE_ENABLED;
+        } else {
+            mPrivacySensitive = PRIVACY_SENSITIVE_DISABLED;
+        }
+    } else {
+        if (mAudioSource == AUDIO_SOURCE_REMOTE_SUBMIX
+                || mAudioSource == AUDIO_SOURCE_FM_TUNER
+                || mAudioSource == AUDIO_SOURCE_VOICE_DOWNLINK
+                || mAudioSource == AUDIO_SOURCE_VOICE_UPLINK
+                || mAudioSource == AUDIO_SOURCE_VOICE_CALL
+                || mAudioSource == AUDIO_SOURCE_ECHO_REFERENCE) {
+            ALOGE("Cannot request private capture with source: %d", mAudioSource);
+            return NULL;
+        }
+        if (mPrivacySensitive == PRIVACY_SENSITIVE_ENABLED) {
+            attr.flags |= AUDIO_FLAG_CAPTURE_PRIVATE;
+        }
+    }
+
     sp<AudioSource> audioSource =
         new AudioSource(
-                mAudioSource,
+                &attr,
                 mOpPackageName,
                 sourceSampleRate,
                 mAudioChannels,
@@ -1133,10 +1184,10 @@
     }
 
     // log audio mime type for media metrics
-    if (mAnalyticsItem != NULL) {
+    if (mMetricsItem != NULL) {
         AString audiomime;
         if (format->findString("mime", &audiomime)) {
-            mAnalyticsItem->setCString(kRecorderAudioMime, audiomime.c_str());
+            mMetricsItem->setCString(kRecorderAudioMime, audiomime.c_str());
         }
     }
 
@@ -1694,10 +1745,10 @@
     }
 
     // log video mime type for media metrics
-    if (mAnalyticsItem != NULL) {
+    if (mMetricsItem != NULL) {
         AString videomime;
         if (format->findString("mime", &videomime)) {
-            mAnalyticsItem->setCString(kRecorderVideoMime, videomime.c_str());
+            mMetricsItem->setCString(kRecorderVideoMime, videomime.c_str());
         }
     }
 
@@ -1951,7 +2002,6 @@
         (*meta)->setInt32(kKeyTimeScale, mMovieTimeScale);
     }
     if (mOutputFormat != OUTPUT_FORMAT_WEBM) {
-        (*meta)->setInt32(kKey64BitFileOffset, mUse64BitFileOffset);
         if (mTrackEveryTimeDurationUs > 0) {
             (*meta)->setInt64(kKeyTrackTimeStatus, mTrackEveryTimeDurationUs);
         }
@@ -2215,12 +2265,12 @@
         return BAD_VALUE;
     }
 
-    if (mAnalyticsItem == NULL) {
+    if (mMetricsItem == NULL) {
         return UNKNOWN_ERROR;
     }
 
     updateMetrics();
-    mAnalyticsItem->writeToParcel(reply);
+    mMetricsItem->writeToParcel(reply);
     return OK;
 }
 
diff --git a/media/libmediaplayerservice/StagefrightRecorder.h b/media/libmediaplayerservice/StagefrightRecorder.h
index 8bf083a..a725bee 100644
--- a/media/libmediaplayerservice/StagefrightRecorder.h
+++ b/media/libmediaplayerservice/StagefrightRecorder.h
@@ -18,7 +18,7 @@
 
 #define STAGEFRIGHT_RECORDER_H_
 
-#include <media/MediaAnalyticsItem.h>
+#include <media/MediaMetricsItem.h>
 #include <media/MediaRecorderBase.h>
 #include <camera/CameraParameters.h>
 #include <utils/String8.h>
@@ -46,6 +46,8 @@
     virtual ~StagefrightRecorder();
     virtual status_t init();
     virtual status_t setAudioSource(audio_source_t as);
+            status_t setPrivacySensitive(bool privacySensitive) override;
+            status_t isPrivacySensitive(bool *privacySensitive) const override;
     virtual status_t setVideoSource(video_source vs);
     virtual status_t setOutputFormat(output_format of);
     virtual status_t setAudioEncoder(audio_encoder ae);
@@ -82,6 +84,13 @@
             status_t getPortId(audio_port_handle_t *portId) const override;
 
 private:
+
+    enum privacy_sensitive_t {
+        PRIVACY_SENSITIVE_DEFAULT = -1,
+        PRIVACY_SENSITIVE_DISABLED = 0,
+        PRIVACY_SENSITIVE_ENABLED = 1,
+    };
+
     mutable Mutex mLock;
     sp<hardware::ICamera> mCamera;
     sp<ICameraRecordingProxy> mCameraProxy;
@@ -95,12 +104,13 @@
     int mOutputFd;
     sp<AudioSource> mAudioSourceNode;
 
-    MediaAnalyticsItem *mAnalyticsItem;
+    mediametrics::Item *mMetricsItem;
     bool mAnalyticsDirty;
     void flushAndResetMetrics(bool reinitialize);
     void updateMetrics();
 
     audio_source_t mAudioSource;
+    privacy_sensitive_t mPrivacySensitive;
     video_source mVideoSource;
     output_format mOutputFormat;
     audio_encoder mAudioEncoder;
diff --git a/media/libmediaplayerservice/nuplayer/GenericSource.cpp b/media/libmediaplayerservice/nuplayer/GenericSource.cpp
index a49e72e..0eaa503 100644
--- a/media/libmediaplayerservice/nuplayer/GenericSource.cpp
+++ b/media/libmediaplayerservice/nuplayer/GenericSource.cpp
@@ -29,7 +29,7 @@
 #include <datasource/NuCachedSource2.h>
 #include <media/DataSource.h>
 #include <media/MediaBufferHolder.h>
-#include <media/MediaSource.h>
+#include <media/stagefright/MediaSource.h>
 #include <android/IMediaExtractorService.h>
 #include <media/IMediaHTTPService.h>
 #include <media/stagefright/foundation/ABuffer.h>
@@ -418,7 +418,7 @@
                     sp<IMediaExtractorService> mediaExService(
                             interface_cast<IMediaExtractorService>(binder));
                     sp<IDataSource> source;
-                    mediaExService->makeIDataSource(mFd, mOffset, mLength, &source);
+                    mediaExService->makeIDataSource(base::unique_fd(dup(mFd.get())), mOffset, mLength, &source);
                     ALOGV("IDataSource(FileSource): %p %d %lld %lld",
                             source.get(), mFd.get(), (long long)mOffset, (long long)mLength);
                     if (source.get() != nullptr) {
diff --git a/media/libmediaplayerservice/nuplayer/NuPlayerDriver.cpp b/media/libmediaplayerservice/nuplayer/NuPlayerDriver.cpp
index 4d9872a..24afd43 100644
--- a/media/libmediaplayerservice/nuplayer/NuPlayerDriver.cpp
+++ b/media/libmediaplayerservice/nuplayer/NuPlayerDriver.cpp
@@ -35,8 +35,6 @@
 #include <media/stagefright/Utils.h>
 #include <media/stagefright/FoundationUtils.h>
 
-#include <media/IMediaAnalyticsService.h>
-
 static const int kDumpLockRetries = 50;
 static const int kDumpLockSleepUs = 20000;
 
@@ -87,7 +85,7 @@
       mMediaClock(new MediaClock),
       mPlayer(new NuPlayer(pid, mMediaClock)),
       mPlayerFlags(0),
-      mAnalyticsItem(NULL),
+      mMetricsItem(NULL),
       mClientUid(-1),
       mAtEOS(false),
       mLooping(false),
@@ -98,7 +96,7 @@
     mMediaClock->init();
 
     // set up an analytics record
-    mAnalyticsItem = MediaAnalyticsItem::create(kKeyPlayer);
+    mMetricsItem = mediametrics::Item::create(kKeyPlayer);
 
     mLooper->start(
             false, /* runOnCallingThread */
@@ -118,9 +116,9 @@
     updateMetrics("destructor");
     logMetrics("destructor");
 
-    if (mAnalyticsItem != NULL) {
-        delete mAnalyticsItem;
-        mAnalyticsItem = NULL;
+    if (mMetricsItem != NULL) {
+        delete mMetricsItem;
+        mMetricsItem = NULL;
     }
 }
 
@@ -131,8 +129,8 @@
 status_t NuPlayerDriver::setUID(uid_t uid) {
     mPlayer->setUID(uid);
     mClientUid = uid;
-    if (mAnalyticsItem) {
-        mAnalyticsItem->setUid(mClientUid);
+    if (mMetricsItem) {
+        mMetricsItem->setUid(mClientUid);
     }
 
     return OK;
@@ -560,15 +558,15 @@
 
             if (mime.startsWith("video/")) {
                 int32_t width, height;
-                mAnalyticsItem->setCString(kPlayerVMime, mime.c_str());
+                mMetricsItem->setCString(kPlayerVMime, mime.c_str());
                 if (!name.empty()) {
-                    mAnalyticsItem->setCString(kPlayerVCodec, name.c_str());
+                    mMetricsItem->setCString(kPlayerVCodec, name.c_str());
                 }
 
                 if (stats->findInt32("width", &width)
                         && stats->findInt32("height", &height)) {
-                    mAnalyticsItem->setInt32(kPlayerWidth, width);
-                    mAnalyticsItem->setInt32(kPlayerHeight, height);
+                    mMetricsItem->setInt32(kPlayerWidth, width);
+                    mMetricsItem->setInt32(kPlayerHeight, height);
                 }
 
                 int64_t numFramesTotal = 0;
@@ -576,18 +574,18 @@
                 stats->findInt64("frames-total", &numFramesTotal);
                 stats->findInt64("frames-dropped-output", &numFramesDropped);
 
-                mAnalyticsItem->setInt64(kPlayerFrames, numFramesTotal);
-                mAnalyticsItem->setInt64(kPlayerFramesDropped, numFramesDropped);
+                mMetricsItem->setInt64(kPlayerFrames, numFramesTotal);
+                mMetricsItem->setInt64(kPlayerFramesDropped, numFramesDropped);
 
                 float frameRate = 0;
                 if (stats->findFloat("frame-rate-total", &frameRate)) {
-                    mAnalyticsItem->setDouble(kPlayerFrameRate, (double) frameRate);
+                    mMetricsItem->setDouble(kPlayerFrameRate, (double) frameRate);
                 }
 
             } else if (mime.startsWith("audio/")) {
-                mAnalyticsItem->setCString(kPlayerAMime, mime.c_str());
+                mMetricsItem->setCString(kPlayerAMime, mime.c_str());
                 if (!name.empty()) {
-                    mAnalyticsItem->setCString(kPlayerACodec, name.c_str());
+                    mMetricsItem->setCString(kPlayerACodec, name.c_str());
                 }
             }
         }
@@ -598,20 +596,20 @@
     // getDuration() uses mLock for mutex -- careful where we use it.
     int duration_ms = -1;
     getDuration(&duration_ms);
-    mAnalyticsItem->setInt64(kPlayerDuration, duration_ms);
+    mMetricsItem->setInt64(kPlayerDuration, duration_ms);
 
     mPlayer->updateInternalTimers();
 
-    mAnalyticsItem->setInt64(kPlayerPlaying, (mPlayingTimeUs+500)/1000 );
+    mMetricsItem->setInt64(kPlayerPlaying, (mPlayingTimeUs+500)/1000 );
 
     if (mRebufferingEvents != 0) {
-        mAnalyticsItem->setInt64(kPlayerRebuffering, (mRebufferingTimeUs+500)/1000 );
-        mAnalyticsItem->setInt32(kPlayerRebufferingCount, mRebufferingEvents);
-        mAnalyticsItem->setInt32(kPlayerRebufferingAtExit, mRebufferingAtExit);
+        mMetricsItem->setInt64(kPlayerRebuffering, (mRebufferingTimeUs+500)/1000 );
+        mMetricsItem->setInt32(kPlayerRebufferingCount, mRebufferingEvents);
+        mMetricsItem->setInt32(kPlayerRebufferingAtExit, mRebufferingAtExit);
 
     }
 
-    mAnalyticsItem->setCString(kPlayerDataSourceType, mPlayer->getDataSourceType());
+    mMetricsItem->setCString(kPlayerDataSourceType, mPlayer->getDataSourceType());
 }
 
 
@@ -621,7 +619,7 @@
     }
     ALOGV("logMetrics(%p) from %s at state %d", this, where, mState);
 
-    if (mAnalyticsItem == NULL || mAnalyticsItem->isEnabled() == false) {
+    if (mMetricsItem == NULL || mMetricsItem->isEnabled() == false) {
         return;
     }
 
@@ -630,18 +628,18 @@
     // and that always injects 3 fields (duration, playing time, and
     // datasource) into the record.
     // So the canonical "empty" record has 3 elements in it.
-    if (mAnalyticsItem->count() > 3) {
+    if (mMetricsItem->count() > 3) {
 
-        mAnalyticsItem->selfrecord();
+        mMetricsItem->selfrecord();
 
         // re-init in case we prepare() and start() again.
-        delete mAnalyticsItem ;
-        mAnalyticsItem = MediaAnalyticsItem::create(kKeyPlayer);
-        if (mAnalyticsItem) {
-            mAnalyticsItem->setUid(mClientUid);
+        delete mMetricsItem ;
+        mMetricsItem = mediametrics::Item::create(kKeyPlayer);
+        if (mMetricsItem) {
+            mMetricsItem->setUid(mClientUid);
         }
     } else {
-        ALOGV("nothing to record (only %zu fields)", mAnalyticsItem->count());
+        ALOGV("nothing to record (only %zu fields)", mMetricsItem->count());
     }
 }
 
@@ -779,11 +777,11 @@
 
 status_t NuPlayerDriver::getParameter(int key, Parcel *reply) {
 
-    if (key == FOURCC('m','t','r','X') && mAnalyticsItem != NULL) {
+    if (key == FOURCC('m','t','r','X') && mMetricsItem != NULL) {
         // mtrX -- a play on 'metrics' (not matrix)
         // gather current info all together, parcel it, and send it back
         updateMetrics("api");
-        mAnalyticsItem->writeToParcel(reply);
+        mMetricsItem->writeToParcel(reply);
         return OK;
     }
 
@@ -1007,12 +1005,12 @@
             // when we have an error, add it to the analytics for this playback.
             // ext1 is our primary 'error type' value. Only add ext2 when non-zero.
             // [test against msg is due to fall through from previous switch value]
-            if (msg == MEDIA_ERROR && mAnalyticsItem != NULL) {
-                mAnalyticsItem->setInt32(kPlayerError, ext1);
+            if (msg == MEDIA_ERROR && mMetricsItem != NULL) {
+                mMetricsItem->setInt32(kPlayerError, ext1);
                 if (ext2 != 0) {
-                    mAnalyticsItem->setInt32(kPlayerErrorCode, ext2);
+                    mMetricsItem->setInt32(kPlayerErrorCode, ext2);
                 }
-                mAnalyticsItem->setCString(kPlayerErrorState, stateString(mState).c_str());
+                mMetricsItem->setCString(kPlayerErrorState, stateString(mState).c_str());
             }
             mAtEOS = true;
             break;
diff --git a/media/libmediaplayerservice/nuplayer/NuPlayerDriver.h b/media/libmediaplayerservice/nuplayer/NuPlayerDriver.h
index ad878f8..7001f4a 100644
--- a/media/libmediaplayerservice/nuplayer/NuPlayerDriver.h
+++ b/media/libmediaplayerservice/nuplayer/NuPlayerDriver.h
@@ -16,7 +16,7 @@
 
 #include <media/MediaPlayerInterface.h>
 
-#include <media/MediaAnalyticsItem.h>
+#include <media/MediaMetricsItem.h>
 #include <media/stagefright/foundation/ABase.h>
 
 namespace android {
@@ -141,7 +141,7 @@
     sp<AudioSink> mAudioSink;
     uint32_t mPlayerFlags;
 
-    MediaAnalyticsItem *mAnalyticsItem;
+    mediametrics::Item *mMetricsItem;
     uid_t mClientUid;
 
     bool mAtEOS;
diff --git a/media/libmediaplayerservice/nuplayer/StreamingSource.cpp b/media/libmediaplayerservice/nuplayer/StreamingSource.cpp
index f21d2b3..14f1323 100644
--- a/media/libmediaplayerservice/nuplayer/StreamingSource.cpp
+++ b/media/libmediaplayerservice/nuplayer/StreamingSource.cpp
@@ -24,7 +24,7 @@
 #include "AnotherPacketSource.h"
 #include "NuPlayerStreamListener.h"
 
-#include <media/MediaSource.h>
+#include <media/stagefright/MediaSource.h>
 #include <media/stagefright/foundation/ABuffer.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/AMessage.h>
diff --git a/media/libmediatranscoding/Android.bp b/media/libmediatranscoding/Android.bp
new file mode 100644
index 0000000..8f0e278
--- /dev/null
+++ b/media/libmediatranscoding/Android.bp
@@ -0,0 +1,15 @@
+// AIDL interfaces of MediaTranscoding.
+aidl_interface {
+    name: "mediatranscoding_aidl_interface",
+    local_include_dir: "aidl",
+    srcs: [
+        "aidl/android/media/IMediaTranscodingService.aidl",
+        "aidl/android/media/ITranscodingServiceClient.aidl",
+        "aidl/android/media/TranscodingErrorCode.aidl",
+        "aidl/android/media/TranscodingType.aidl",
+        "aidl/android/media/TranscodingVideoCodecType.aidl",
+        "aidl/android/media/TranscodingJob.aidl",
+        "aidl/android/media/TranscodingRequest.aidl",
+        "aidl/android/media/TranscodingResult.aidl",
+    ],
+}
diff --git a/media/libmediatranscoding/OWNERS b/media/libmediatranscoding/OWNERS
new file mode 100644
index 0000000..02287cb
--- /dev/null
+++ b/media/libmediatranscoding/OWNERS
@@ -0,0 +1,3 @@
+akersten@google.com
+hkuang@google.com
+lnilsson@google.com
diff --git a/media/libmediatranscoding/aidl/android/media/IMediaTranscodingService.aidl b/media/libmediatranscoding/aidl/android/media/IMediaTranscodingService.aidl
new file mode 100644
index 0000000..cae8ff0
--- /dev/null
+++ b/media/libmediatranscoding/aidl/android/media/IMediaTranscodingService.aidl
@@ -0,0 +1,81 @@
+/**
+ * Copyright (c) 2019, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT 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.TranscodingJob;
+import android.media.TranscodingRequest;
+import android.media.ITranscodingServiceClient;
+
+/**
+ * Binder interface for MediaTranscodingService.
+ *
+ * {@hide}
+ */
+interface IMediaTranscodingService {
+    /**
+     * Register the client with the MediaTranscodingService.
+     *
+     * Client must call this function to register itself with the service in order to perform
+     * transcoding. This function will return a unique positive Id assigned by the service.
+     * Client should save this Id and use it for all the transaction with the service.
+     *
+     * @param client interface for the MediaTranscodingService to call the client.
+     * @return a unique positive Id assigned to the client by the service, -1  means failed to
+     * register.
+     */
+    int registerClient(in ITranscodingServiceClient client);
+
+    /**
+    * Unregister the client with the MediaTranscodingService.
+    *
+    * Client will not be able to perform any more transcoding after unregister.
+    *
+    * @param clientId assigned Id of the client.
+    * @return true if succeeds, false otherwise.
+    */
+    boolean unregisterClient(in int clientId);
+
+    /**
+     * Submits a transcoding request to MediaTranscodingService.
+     *
+     * @param clientId assigned Id of the client.
+     * @param request a TranscodingRequest contains transcoding configuration.
+     * @param job(output variable) a TranscodingJob generated by the MediaTranscodingService.
+     * @return a unique positive jobId generated by the MediaTranscodingService, -1 means failure.
+     */
+    int submitRequest(in int clientId,
+                      in TranscodingRequest request,
+                      out TranscodingJob job);
+
+    /**
+     * Cancels a transcoding job.
+     *
+     * @param clientId assigned id of the client.
+     * @param jobId a TranscodingJob generated by the MediaTranscodingService.
+     * @return true if succeeds, false otherwise.
+     */
+    boolean cancelJob(in int clientId, in int jobId);
+
+    /**
+     * Queries the job detail associated with a jobId.
+     *
+     * @param jobId a TranscodingJob generated by the MediaTranscodingService.
+     * @param job(output variable) the TranscodingJob associated with the jobId.
+     * @return true if succeeds, false otherwise.
+     */
+    boolean getJobWithId(in int jobId, out TranscodingJob job);
+}
diff --git a/media/libmediatranscoding/aidl/android/media/ITranscodingServiceClient.aidl b/media/libmediatranscoding/aidl/android/media/ITranscodingServiceClient.aidl
new file mode 100644
index 0000000..29b6f35
--- /dev/null
+++ b/media/libmediatranscoding/aidl/android/media/ITranscodingServiceClient.aidl
@@ -0,0 +1,75 @@
+/**
+ * Copyright (c) 2019, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT 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.TranscodingErrorCode;
+import android.media.TranscodingJob;
+import android.media.TranscodingResult;
+
+/**
+ * ITranscodingServiceClient interface for the MediaTranscodingervice to communicate with the
+ * client.
+ *
+ * {@hide}
+ */
+//TODO(hkuang): Implement the interface.
+interface ITranscodingServiceClient {
+    /**
+     * Retrieves the name of the client.
+     */
+    @utf8InCpp String getName();
+
+    /**
+    * Called when the transcoding associated with the jobId finished.
+    *
+    * @param jobId jobId assigned by the MediaTranscodingService upon receiving request.
+    * @param result contains the transcoded file stats and other transcoding metrics if requested.
+    */
+    oneway void onTranscodingFinished(in int jobId, in TranscodingResult result);
+
+    /**
+    * Called when the transcoding associated with the jobId failed.
+    *
+    * @param jobId jobId assigned by the MediaTranscodingService upon receiving request.
+    * @param errorCode error code that indicates the error.
+    */
+    oneway void onTranscodingFailed(in int jobId, in TranscodingErrorCode errorCode);
+
+    /**
+    * Called when the transcoding configuration associated with the jobId gets updated, i.e. wait
+    * number in the job queue.
+    *
+    * <p> This will only be called if client set requestUpdate to be true in the TranscodingRequest
+    * submitted to the MediaTranscodingService.
+    *
+    * @param jobId jobId assigned by the MediaTranscodingService upon receiving request.
+    * @param oldAwaitNumber previous number of jobs ahead of current job.
+    * @param newAwaitNumber updated number of jobs ahead of current job.
+    */
+    oneway void onAwaitNumberOfJobsChanged(in int jobId, in int oldAwaitNumber, in int newAwaitNumber);
+
+    /**
+    * Called when there is an update on the progress of the TranscodingJob.
+    *
+    * <p> This will only be called if client set requestUpdate to be true in the TranscodingRequest
+    * submitted to the MediaTranscodingService.
+    *
+    * @param jobId jobId assigned by the MediaTranscodingService upon receiving request.
+    * @param progress an integer number ranging from 0 ~ 100 inclusive.
+    */
+    oneway void onProgressUpdate(in int jobId, in int progress);
+}
diff --git a/media/libmediatranscoding/aidl/android/media/TranscodingErrorCode.aidl b/media/libmediatranscoding/aidl/android/media/TranscodingErrorCode.aidl
new file mode 100644
index 0000000..7f47fdc
--- /dev/null
+++ b/media/libmediatranscoding/aidl/android/media/TranscodingErrorCode.aidl
@@ -0,0 +1,33 @@
+/**
+ * Copyright (c) 2019, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT 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;
+
+/**
+ * Type enums of video transcoding errors.
+ *
+ * {@hide}
+ */
+@Backing(type = "int")
+enum TranscodingErrorCode {
+    kUnknown = 0,
+    kUnsupported = 1,
+    kDecoderError = 2,
+    kEncoderError = 3,
+    kExtractorError = 4,
+    kMuxerError = 5,
+    kInvalidBitstream = 6
+}
\ No newline at end of file
diff --git a/media/libmediatranscoding/aidl/android/media/TranscodingJob.aidl b/media/libmediatranscoding/aidl/android/media/TranscodingJob.aidl
new file mode 100644
index 0000000..42ad8ad
--- /dev/null
+++ b/media/libmediatranscoding/aidl/android/media/TranscodingJob.aidl
@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT 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.TranscodingRequest;
+
+/**
+ * TranscodingJob is generated by the MediaTranscodingService upon receiving a TranscodingRequest.
+ * It contains all the necessary configuration generated by the MediaTranscodingService for the
+ * TranscodingRequest.
+ *
+ * {@hide}
+ */
+//TODO(hkuang): Implement the parcelable.
+parcelable TranscodingJob {
+    /**
+     * A unique positive Id generated by the MediaTranscodingService.
+     */
+    int jobId;
+
+    /**
+     * The request associated with the TranscodingJob.
+     */
+    TranscodingRequest request;
+
+    /**
+    * Current number of jobs ahead of this job. The service schedules the job based on the priority
+    * passed from the client. Client could specify whether to receive updates when the
+    * awaitNumberOfJobs changes through setting requestProgressUpdate in the TranscodingRequest.
+    */
+    int awaitNumberOfJobs;
+}
diff --git a/media/libmediatranscoding/aidl/android/media/TranscodingRequest.aidl b/media/libmediatranscoding/aidl/android/media/TranscodingRequest.aidl
new file mode 100644
index 0000000..6b51ee3
--- /dev/null
+++ b/media/libmediatranscoding/aidl/android/media/TranscodingRequest.aidl
@@ -0,0 +1,58 @@
+/**
+ * Copyright (c) 2019, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT 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.TranscodingType;
+
+/**
+ * TranscodingRequest contains the desired configuration for the transcoding.
+ *
+ * {@hide}
+ */
+//TODO(hkuang): Implement the parcelable.
+parcelable TranscodingRequest {
+    /**
+     * Name of file to be transcoded.
+     */
+    @utf8InCpp String fileName;
+
+    /**
+     * Type of the transcoding.
+     */
+    TranscodingType transcodingType;
+
+    /**
+     * Input source file descriptor.
+     */
+    ParcelFileDescriptor inFd;
+
+    /**
+     * Output transcoded file descriptor.
+     */
+    ParcelFileDescriptor outFd;
+
+    /**
+     * Priority of this transcoding. Service will schedule the transcoding based on the priority.
+     */
+    // TODO(hkuang): Define the priority level.
+    int priority;
+
+    /**
+     * Whether to receive update on progress and change of awaitNumJobs.
+     */
+    boolean requestUpdate;
+}
diff --git a/media/libmediatranscoding/aidl/android/media/TranscodingResult.aidl b/media/libmediatranscoding/aidl/android/media/TranscodingResult.aidl
new file mode 100644
index 0000000..a41e025
--- /dev/null
+++ b/media/libmediatranscoding/aidl/android/media/TranscodingResult.aidl
@@ -0,0 +1,40 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT 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.TranscodingJob;
+
+/**
+ * Result of the transcoding.
+ *
+ * {@hide}
+ */
+//TODO(hkuang): Implement the parcelable.
+parcelable TranscodingResult {
+    /**
+     * The jobId associated with the TranscodingResult.
+     */
+    int jobId;
+
+    /**
+     * Actual bitrate of the transcoded video in bits per second. This will only present for video
+     * transcoding. -1 means not available.
+     */
+    int actualBitrateBps;
+
+    // TODO(hkuang): Add more fields.
+}
\ No newline at end of file
diff --git a/media/libmediatranscoding/aidl/android/media/TranscodingType.aidl b/media/libmediatranscoding/aidl/android/media/TranscodingType.aidl
new file mode 100644
index 0000000..9184c87
--- /dev/null
+++ b/media/libmediatranscoding/aidl/android/media/TranscodingType.aidl
@@ -0,0 +1,29 @@
+/**
+ * Copyright (c) 2019, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT 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;
+
+/**
+ * Type of transcoding.
+ *
+ * {@hide}
+ */
+@Backing(type = "int")
+enum TranscodingType {
+    kUnknown = 0,
+    kVideoTranscoding = 1,
+    kImageTranscoding = 2,
+}
diff --git a/media/libmediatranscoding/aidl/android/media/TranscodingVideoCodecType.aidl b/media/libmediatranscoding/aidl/android/media/TranscodingVideoCodecType.aidl
new file mode 100644
index 0000000..5dab4f2
--- /dev/null
+++ b/media/libmediatranscoding/aidl/android/media/TranscodingVideoCodecType.aidl
@@ -0,0 +1,29 @@
+/**
+ * Copyright (c) 2019, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT 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;
+
+/**
+ * Type enums of video codec type.
+ *
+ * {@hide}
+ */
+@Backing(type = "int")
+enum TranscodingVideoCodecType {
+    kUnspecified = 0,
+    kAvc = 1,
+    kHevc = 2,
+}
\ No newline at end of file
diff --git a/media/libnblog/ReportPerformance.cpp b/media/libnblog/ReportPerformance.cpp
index b050b83..aa678ba 100644
--- a/media/libnblog/ReportPerformance.cpp
+++ b/media/libnblog/ReportPerformance.cpp
@@ -30,7 +30,7 @@
 #include <sys/time.h>
 #include <utility>
 #include <json/json.h>
-#include <media/MediaAnalyticsItem.h>
+#include <media/MediaMetricsItem.h>
 #include <media/nblog/Events.h>
 #include <media/nblog/PerformanceAnalysis.h>
 #include <media/nblog/ReportPerformance.h>
@@ -168,7 +168,7 @@
         return false;
     }
 
-    std::unique_ptr<MediaAnalyticsItem> item(MediaAnalyticsItem::create("audiothread"));
+    std::unique_ptr<mediametrics::Item> item(mediametrics::Item::create("audiothread"));
 
     const Histogram &workHist = data.workHist;
     if (workHist.totalCount() > 0) {
diff --git a/media/libstagefright/AACWriter.cpp b/media/libstagefright/AACWriter.cpp
index e173974..9c0a7a5 100644
--- a/media/libstagefright/AACWriter.cpp
+++ b/media/libstagefright/AACWriter.cpp
@@ -31,7 +31,7 @@
 #include <media/stagefright/MediaDefs.h>
 #include <media/stagefright/MediaErrors.h>
 #include <media/stagefright/MetaData.h>
-#include <media/MediaSource.h>
+#include <media/stagefright/MediaSource.h>
 #include <media/mediarecorder.h>
 
 namespace android {
diff --git a/media/libstagefright/AMRWriter.cpp b/media/libstagefright/AMRWriter.cpp
index 24f6f0b..a1aa5dd 100644
--- a/media/libstagefright/AMRWriter.cpp
+++ b/media/libstagefright/AMRWriter.cpp
@@ -26,7 +26,7 @@
 #include <media/stagefright/MediaDefs.h>
 #include <media/stagefright/MediaErrors.h>
 #include <media/stagefright/MetaData.h>
-#include <media/MediaSource.h>
+#include <media/stagefright/MediaSource.h>
 #include <media/mediarecorder.h>
 
 namespace android {
diff --git a/media/libstagefright/AudioSource.cpp b/media/libstagefright/AudioSource.cpp
index d78d729..00c5b40 100644
--- a/media/libstagefright/AudioSource.cpp
+++ b/media/libstagefright/AudioSource.cpp
@@ -50,7 +50,7 @@
 }
 
 AudioSource::AudioSource(
-        audio_source_t inputSource, const String16 &opPackageName,
+        const audio_attributes_t *attr, const String16 &opPackageName,
         uint32_t sampleRate, uint32_t channelCount, uint32_t outSampleRate,
         uid_t uid, pid_t pid, audio_port_handle_t selectedDeviceId,
         audio_microphone_direction_t selectedMicDirection,
@@ -92,7 +92,7 @@
         }
 
         mRecord = new AudioRecord(
-                    inputSource, sampleRate, AUDIO_FORMAT_PCM_16_BIT,
+                    AUDIO_SOURCE_DEFAULT, sampleRate, AUDIO_FORMAT_PCM_16_BIT,
                     audio_channel_in_mask_from_count(channelCount),
                     opPackageName,
                     (size_t) (bufCount * frameCount),
@@ -104,7 +104,7 @@
                     AUDIO_INPUT_FLAG_NONE,
                     uid,
                     pid,
-                    NULL /*pAttributes*/,
+                    attr,
                     selectedDeviceId,
                     selectedMicDirection,
                     selectedMicFieldDimension);
diff --git a/media/libstagefright/MPEG2TSWriter.cpp b/media/libstagefright/MPEG2TSWriter.cpp
index a9715c9..34b840e 100644
--- a/media/libstagefright/MPEG2TSWriter.cpp
+++ b/media/libstagefright/MPEG2TSWriter.cpp
@@ -17,7 +17,7 @@
 //#define LOG_NDEBUG 0
 #define LOG_TAG "MPEG2TSWriter"
 
-#include <media/MediaSource.h>
+#include <media/stagefright/MediaSource.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/hexdump.h>
 #include <media/stagefright/foundation/ABuffer.h>
diff --git a/media/libstagefright/MPEG4Writer.cpp b/media/libstagefright/MPEG4Writer.cpp
index bf4e7de..743a3e4 100644
--- a/media/libstagefright/MPEG4Writer.cpp
+++ b/media/libstagefright/MPEG4Writer.cpp
@@ -31,8 +31,9 @@
 #include <utils/Log.h>
 
 #include <functional>
+#include <fcntl.h>
 
-#include <media/MediaSource.h>
+#include <media/stagefright/MediaSource.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/AMessage.h>
 #include <media/stagefright/foundation/AUtils.h>
@@ -64,9 +65,6 @@
 namespace android {
 
 static const int64_t kMinStreamableFileSizeInBytes = 5 * 1024 * 1024;
-static const int64_t kMax32BitFileSize = 0x00ffffffffLL; // 2^32-1 : max FAT32
-                                                         // filesystem file size
-                                                         // used by most SD cards
 static const uint8_t kNalUnitTypeSeqParamSet = 0x07;
 static const uint8_t kNalUnitTypePicParamSet = 0x08;
 static const int64_t kInitialDelayTimeUs     = 700000LL;
@@ -118,7 +116,7 @@
     int64_t getDurationUs() const;
     int64_t getEstimatedTrackSizeBytes() const;
     int32_t getMetaSizeIncrease(int32_t angle, int32_t trackCount) const;
-    void writeTrackHeader(bool use32BitOffset = true);
+    void writeTrackHeader();
     int64_t getMinCttsOffsetTimeUs();
     void bufferChunk(int64_t timestampUs);
     bool isAvc() const { return mIsAvc; }
@@ -136,6 +134,7 @@
     static const char *getFourCCForMime(const char *mime);
     const char *getTrackType() const;
     void resetInternal();
+    int64_t trackMetaDataSize();
 
 private:
     // A helper class to handle faster write box with table entries
@@ -295,20 +294,16 @@
     int64_t mTrackDurationUs;
     int64_t mMaxChunkDurationUs;
     int64_t mLastDecodingTimeUs;
-
     int64_t mEstimatedTrackSizeBytes;
     int64_t mMdatSizeBytes;
     int32_t mTimeScale;
 
     pthread_t mThread;
 
-
     List<MediaBuffer *> mChunkSamples;
 
-    bool                mSamplesHaveSameSize;
+    bool mSamplesHaveSameSize;
     ListTableEntries<uint32_t, 1> *mStszTableEntries;
-
-    ListTableEntries<uint32_t, 1> *mStcoTableEntries;
     ListTableEntries<off64_t, 1> *mCo64TableEntries;
     ListTableEntries<uint32_t, 3> *mStscTableEntries;
     ListTableEntries<uint32_t, 1> *mStssTableEntries;
@@ -352,6 +347,8 @@
     int64_t mStartTimestampUs;
     int64_t mStartTimeRealUs;
     int64_t mFirstSampleTimeRealUs;
+    // Captures negative start offset of a track(track starttime < 0).
+    int64_t mFirstSampleStartOffsetUs;
     int64_t mPreviousTrackTimeUs;
     int64_t mTrackEveryTimeDurationUs;
 
@@ -410,10 +407,8 @@
     void updateTrackSizeEstimate();
     void addOneStscTableEntry(size_t chunkId, size_t sampleId);
     void addOneStssTableEntry(size_t sampleId);
-
-    // Duration is time scale based
-    void addOneSttsTableEntry(size_t sampleCount, int32_t timescaledDur);
-    void addOneCttsTableEntry(size_t sampleCount, int32_t timescaledDur);
+    void addOneSttsTableEntry(size_t sampleCount, int32_t delta /* media time scale based */);
+    void addOneCttsTableEntry(size_t sampleCount, int32_t sampleOffset);
     void addOneElstTableEntry(uint32_t segmentDuration, int32_t mediaTime,
         int16_t mediaRate, int16_t mediaRateFraction);
 
@@ -421,7 +416,7 @@
     void sendTrackSummary(bool hasMultipleTracks);
 
     // Write the boxes
-    void writeStcoBox(bool use32BitOffset);
+    void writeCo64Box();
     void writeStscBox();
     void writeStszBox();
     void writeStssBox();
@@ -447,7 +442,7 @@
     void writeAudioFourCCBox();
     void writeVideoFourCCBox();
     void writeMetadataFourCCBox();
-    void writeStblBox(bool use32BitOffset);
+    void writeStblBox();
     void writeEdtsBox();
 
     Track(const Track &);
@@ -489,14 +484,17 @@
     mStarted = false;
     mWriterThreadStarted = false;
     mSendNotify = false;
+    mWriteSeekErr = false;
+    mFallocateErr = false;
 
     // Reset following variables for all the sessions and they will be
     // initialized in start(MetaData *param).
     mIsRealTimeRecording = true;
     mUse4ByteNalLength = true;
-    mUse32BitOffset = true;
     mOffset = 0;
+    mPreAllocateFileEndOffset = 0;
     mMdatOffset = 0;
+    mMdatEndOffset = 0;
     mInMemoryCache = NULL;
     mInMemoryCacheOffset = 0;
     mInMemoryCacheSize = 0;
@@ -505,10 +503,13 @@
     mStreamableFile = false;
     mTimeScale = -1;
     mHasFileLevelMeta = false;
+    mFileLevelMetaDataSize = 0;
     mPrimaryItemId = 0;
     mAssociationEntryCount = 0;
     mNumGrids = 0;
     mHasRefs = false;
+    mPreAllocFirstTime = true;
+    mPrevAllTracksTotalMetaDataSizeEstimate = 0;
 
     // Following variables only need to be set for the first recording session.
     // And they will stay the same for all the recording sessions.
@@ -530,6 +531,15 @@
         ALOGE("cannot seek mFd: %s (%d) %lld", strerror(errno), errno, (long long)mFd);
         release();
     }
+
+    if (fallocate(mFd, 0, 0, 1) == 0) {
+        ALOGD("PreAllocation enabled");
+        mPreAllocationEnabled = true;
+    } else {
+        ALOGD("PreAllocation disabled. fallocate : %s, %d", strerror(errno), errno);
+        mPreAllocationEnabled = false;
+    }
+
     for (List<Track *>::iterator it = mTracks.begin();
          it != mTracks.end(); ++it) {
         (*it)->resetInternal();
@@ -736,9 +746,8 @@
 
     // If the estimation is wrong, we will pay the price of wasting
     // some reserved space. This should not happen so often statistically.
-    static const int32_t factor = mUse32BitOffset? 1: 2;
-    static const int64_t MIN_MOOV_BOX_SIZE = 3 * 1024;  // 3 KB
-    static const int64_t MAX_MOOV_BOX_SIZE = (180 * 3000000 * 6LL / 8000);
+    static const int64_t MIN_MOOV_BOX_SIZE = 3 * 1024;                      // 3 KibiBytes
+    static const int64_t MAX_MOOV_BOX_SIZE = (180 * 3000000 * 6LL / 8000);  // 395.5 KibiBytes
     int64_t size = MIN_MOOV_BOX_SIZE;
 
     // Max file size limit is set
@@ -781,10 +790,7 @@
          " estimated moov size %" PRId64 " bytes",
          mMaxFileSizeLimitBytes, mMaxFileDurationLimitUs, bitRate, size);
 
-    int64_t estimatedSize = factor * size;
-    CHECK_GE(estimatedSize, 8);
-
-    return estimatedSize;
+    return size;
 }
 
 status_t MPEG4Writer::start(MetaData *param) {
@@ -794,36 +800,24 @@
     mStartMeta = param;
 
     /*
-     * Check mMaxFileSizeLimitBytes at the beginning
-     * since mMaxFileSizeLimitBytes may be implicitly
-     * changed later for 32-bit file offset even if
-     * user does not ask to set it explicitly.
+     * Check mMaxFileSizeLimitBytes at the beginning since mMaxFileSizeLimitBytes may be implicitly
+     * changed later as per filesizebits of filesystem even if user does not set it explicitly.
      */
     if (mMaxFileSizeLimitBytes != 0) {
         mIsFileSizeLimitExplicitlyRequested = true;
     }
 
-    int32_t use64BitOffset;
-    if (param &&
-        param->findInt32(kKey64BitFileOffset, &use64BitOffset) &&
-        use64BitOffset) {
-        mUse32BitOffset = false;
-    }
-
-    if (mUse32BitOffset) {
-        // Implicit 32 bit file size limit
-        if (mMaxFileSizeLimitBytes == 0) {
-            mMaxFileSizeLimitBytes = kMax32BitFileSize;
-        }
-
-        // If file size is set to be larger than the 32 bit file
-        // size limit, treat it as an error.
-        if (mMaxFileSizeLimitBytes > kMax32BitFileSize) {
-            ALOGW("32-bit file size limit (%" PRId64 " bytes) too big. "
-                 "It is changed to %" PRId64 " bytes",
-                mMaxFileSizeLimitBytes, kMax32BitFileSize);
-            mMaxFileSizeLimitBytes = kMax32BitFileSize;
-        }
+    int32_t fileSizeBits = fpathconf(mFd, _PC_FILESIZEBITS);
+    ALOGD("fpathconf _PC_FILESIZEBITS:%" PRId32, fileSizeBits);
+    fileSizeBits = std::min(fileSizeBits, 52 /* cap it below 4 peta bytes */);
+    int64_t maxFileSizeBytes = ((int64_t)1 << fileSizeBits) - 1;
+    if (mMaxFileSizeLimitBytes > maxFileSizeBytes) {
+        mMaxFileSizeLimitBytes = maxFileSizeBytes;
+        ALOGD("File size limit (%" PRId64 " bytes) too big. It is changed to %" PRId64 " bytes",
+              mMaxFileSizeLimitBytes, maxFileSizeBytes);
+    } else if (mMaxFileSizeLimitBytes == 0) {
+        mMaxFileSizeLimitBytes = maxFileSizeBytes;
+        ALOGD("File size limit set to %" PRId64 " bytes implicitly", maxFileSizeBytes);
     }
 
     int32_t use2ByteNalLength;
@@ -850,7 +844,8 @@
 
     if (!param ||
         !param->findInt32(kKeyTimeScale, &mTimeScale)) {
-        mTimeScale = 1000;
+        // Increased by a factor of 10 to improve precision of segment duration in edit list entry.
+        mTimeScale = 10000;
     }
     CHECK_GT(mTimeScale, 0);
     ALOGV("movie time scale: %d", mTimeScale);
@@ -915,7 +910,8 @@
     if (mInMemoryCacheSize == 0) {
         int32_t bitRate = -1;
         if (mHasFileLevelMeta) {
-            mInMemoryCacheSize += estimateFileLevelMetaSize(param);
+            mFileLevelMetaDataSize = estimateFileLevelMetaSize(param);
+            mInMemoryCacheSize += mFileLevelMetaDataSize;
         }
         if (mHasMoovBox) {
             if (param) {
@@ -926,7 +922,7 @@
     }
     if (mStreamableFile) {
         // Reserve a 'free' box only for streamable file
-        lseek64(mFd, mFreeBoxOffset, SEEK_SET);
+        seekOrPostError(mFd, mFreeBoxOffset, SEEK_SET);
         writeInt32(mInMemoryCacheSize);
         write("free", 4);
         mMdatOffset = mFreeBoxOffset + mInMemoryCacheSize;
@@ -935,18 +931,16 @@
     }
 
     mOffset = mMdatOffset;
-    lseek64(mFd, mMdatOffset, SEEK_SET);
-    if (mUse32BitOffset) {
-        write("????mdat", 8);
-    } else {
-        write("\x00\x00\x00\x01mdat????????", 16);
-    }
+    seekOrPostError(mFd, mMdatOffset, SEEK_SET);
+    write("\x00\x00\x00\x01mdat????????", 16);
 
     status_t err = startWriterThread();
     if (err != OK) {
         return err;
     }
 
+    setupAndStartLooper();
+
     err = startTracks(param);
     if (err != OK) {
         return err;
@@ -956,32 +950,30 @@
     return OK;
 }
 
-bool MPEG4Writer::use32BitFileOffset() const {
-    return mUse32BitOffset;
-}
-
 status_t MPEG4Writer::pause() {
     ALOGW("MPEG4Writer: pause is not supported");
     return ERROR_UNSUPPORTED;
 }
 
-void MPEG4Writer::stopWriterThread() {
-    ALOGD("Stopping writer thread");
+status_t MPEG4Writer::stopWriterThread() {
+    ALOGV("Stopping writer thread");
     if (!mWriterThreadStarted) {
-        return;
+        return OK;
     }
-
     {
         Mutex::Autolock autolock(mLock);
-
         mDone = true;
         mChunkReadyCondition.signal();
     }
 
     void *dummy;
-    pthread_join(mThread, &dummy);
+    status_t err = pthread_join(mThread, &dummy);
+    WARN_UNLESS(err == 0, "stopWriterThread pthread_join err: %d", err);
+
+    err = static_cast<status_t>(reinterpret_cast<uintptr_t>(dummy));
     mWriterThreadStarted = false;
-    ALOGD("Writer thread stopped");
+    WARN_UNLESS(err == 0, "stopWriterThread pthread_join retVal: %d, writer thread stopped", err);
+    return err;
 }
 
 /*
@@ -1037,12 +1029,21 @@
 }
 
 void MPEG4Writer::release() {
-    close(mFd);
+    ALOGD("release()");
+    if (mPreAllocationEnabled) {
+        truncatePreAllocation();
+    }
+    int retVal = fsync(mFd);
+    WARN_UNLESS(retVal == 0, "fsync retVal:%d", retVal);
+    retVal = close(mFd);
+    WARN_UNLESS(retVal == 0, "close mFd retVal :%d", retVal);
     mFd = -1;
     if (mNextFd != -1) {
-        close(mNextFd);
+        retVal = close(mNextFd);
         mNextFd = -1;
+        WARN_UNLESS(retVal == 0, "close mNextFd retVal :%d", retVal);
     }
+    stopAndReleaseLooper();
     mInitCheck = NO_INIT;
     mStarted = false;
     free(mInMemoryCache);
@@ -1073,16 +1074,19 @@
 }
 
 status_t MPEG4Writer::reset(bool stopSource) {
+    ALOGD("reset()");
+    std::lock_guard<std::mutex> l(mResetMutex);
     if (mInitCheck != OK) {
         return OK;
     } else {
         if (!mWriterThreadStarted ||
             !mStarted) {
+            status_t err = OK;
             if (mWriterThreadStarted) {
-                stopWriterThread();
+                err = stopWriterThread();
             }
             release();
-            return OK;
+            return err;
         }
     }
 
@@ -1092,9 +1096,10 @@
     int32_t nonImageTrackCount = 0;
     for (List<Track *>::iterator it = mTracks.begin();
         it != mTracks.end(); ++it) {
-        status_t status = (*it)->stop(stopSource);
-        if (err == OK && status != OK) {
-            err = status;
+        status_t trackErr = (*it)->stop(stopSource);
+        if (err == OK && trackErr != OK) {
+            ALOGW("%s track stopped with an error", (*it)->getTrackType());
+            err = trackErr;
         }
 
         // skip image tracks
@@ -1110,12 +1115,18 @@
         }
     }
 
+
     if (nonImageTrackCount > 1) {
         ALOGD("Duration from tracks range is [%" PRId64 ", %" PRId64 "] us",
             minDurationUs, maxDurationUs);
     }
 
-    stopWriterThread();
+    status_t writerErr = stopWriterThread();
+
+    // TODO: which error to propagage, writerErr or trackErr?
+    if (err == OK && writerErr != OK) {
+        err = writerErr;
+    }
 
     // Do not write out movie header on error.
     if (err != OK) {
@@ -1124,17 +1135,12 @@
     }
 
     // Fix up the size of the 'mdat' chunk.
-    if (mUse32BitOffset) {
-        lseek64(mFd, mMdatOffset, SEEK_SET);
-        uint32_t size = htonl(static_cast<uint32_t>(mOffset - mMdatOffset));
-        ::write(mFd, &size, 4);
-    } else {
-        lseek64(mFd, mMdatOffset + 8, SEEK_SET);
-        uint64_t size = mOffset - mMdatOffset;
-        size = hton64(size);
-        ::write(mFd, &size, 8);
-    }
-    lseek64(mFd, mOffset, SEEK_SET);
+    seekOrPostError(mFd, mMdatOffset + 8, SEEK_SET);
+    uint64_t size = mOffset - mMdatOffset;
+    size = hton64(size);
+    writeOrPostError(mFd, &size, 8);
+    seekOrPostError(mFd, mOffset, SEEK_SET);
+    mMdatEndOffset = mOffset;
 
     // Construct file-level meta and moov box now
     mInMemoryCacheOffset = 0;
@@ -1198,12 +1204,12 @@
     CHECK_LE(mInMemoryCacheOffset + 8, mInMemoryCacheSize);
 
     // Cached box
-    lseek64(mFd, mFreeBoxOffset, SEEK_SET);
+    seekOrPostError(mFd, mFreeBoxOffset, SEEK_SET);
     mOffset = mFreeBoxOffset;
     write(mInMemoryCache, 1, mInMemoryCacheOffset);
 
     // Free box
-    lseek64(mFd, mOffset, SEEK_SET);
+    seekOrPostError(mFd, mOffset, SEEK_SET);
     mFreeBoxOffset = mOffset;
     writeInt32(mInMemoryCacheSize - mInMemoryCacheOffset);
     write("free", 4);
@@ -1272,20 +1278,19 @@
                 std::min(minCttsOffsetTimeUs, (*it)->getMinCttsOffsetTimeUs());
         }
     }
-    ALOGI("Ajust the moov start time from %lld us -> %lld us",
-            (long long)mStartTimestampUs,
-            (long long)(mStartTimestampUs + minCttsOffsetTimeUs - kMaxCttsOffsetTimeUs));
-    // Adjust the global start time.
+    ALOGI("Adjust the moov start time from %lld us -> %lld us", (long long)mStartTimestampUs,
+          (long long)(mStartTimestampUs + minCttsOffsetTimeUs - kMaxCttsOffsetTimeUs));
+    // Adjust movie start time.
     mStartTimestampUs += minCttsOffsetTimeUs - kMaxCttsOffsetTimeUs;
 
-    // Add mStartTimeOffsetBFramesUs(-ve or zero) to the duration of first entry in STTS.
+    // Add mStartTimeOffsetBFramesUs(-ve or zero) to the start offset of tracks.
     mStartTimeOffsetBFramesUs = minCttsOffsetTimeUs - kMaxCttsOffsetTimeUs;
     ALOGV("mStartTimeOffsetBFramesUs :%" PRId32, mStartTimeOffsetBFramesUs);
 
     for (List<Track *>::iterator it = mTracks.begin();
         it != mTracks.end(); ++it) {
         if (!(*it)->isHeic()) {
-            (*it)->writeTrackHeader(mUse32BitOffset);
+            (*it)->writeTrackHeader();
         }
     }
     endBox();  // moov
@@ -1376,17 +1381,15 @@
     } else {
         if (tiffHdrOffset > 0) {
             tiffHdrOffset = htonl(tiffHdrOffset);
-            ::write(mFd, &tiffHdrOffset, 4); // exif_tiff_header_offset field
+            writeOrPostError(mFd, &tiffHdrOffset, 4);  // exif_tiff_header_offset field
             mOffset += 4;
         }
 
-        ::write(mFd,
-              (const uint8_t *)buffer->data() + buffer->range_offset(),
-              buffer->range_length());
+        writeOrPostError(mFd, (const uint8_t*)buffer->data() + buffer->range_offset(),
+                         buffer->range_length());
 
         mOffset += buffer->range_length();
     }
-
     *bytesWritten = mOffset - old_offset;
     return old_offset;
 }
@@ -1431,30 +1434,27 @@
 
 void MPEG4Writer::addLengthPrefixedSample_l(MediaBuffer *buffer) {
     size_t length = buffer->range_length();
-
     if (mUse4ByteNalLength) {
         uint8_t x = length >> 24;
-        ::write(mFd, &x, 1);
+        writeOrPostError(mFd, &x, 1);
         x = (length >> 16) & 0xff;
-        ::write(mFd, &x, 1);
+        writeOrPostError(mFd, &x, 1);
         x = (length >> 8) & 0xff;
-        ::write(mFd, &x, 1);
+        writeOrPostError(mFd, &x, 1);
         x = length & 0xff;
-        ::write(mFd, &x, 1);
+        writeOrPostError(mFd, &x, 1);
 
-        ::write(mFd,
-              (const uint8_t *)buffer->data() + buffer->range_offset(),
-              length);
+        writeOrPostError(mFd, (const uint8_t*)buffer->data() + buffer->range_offset(), length);
 
         mOffset += length + 4;
     } else {
         CHECK_LT(length, 65536u);
 
         uint8_t x = length >> 8;
-        ::write(mFd, &x, 1);
+        writeOrPostError(mFd, &x, 1);
         x = length & 0xff;
-        ::write(mFd, &x, 1);
-        ::write(mFd, (const uint8_t *)buffer->data() + buffer->range_offset(), length);
+        writeOrPostError(mFd, &x, 1);
+        writeOrPostError(mFd, (const uint8_t*)buffer->data() + buffer->range_offset(), length);
         mOffset += length + 2;
     }
 }
@@ -1476,9 +1476,9 @@
                  it != mBoxes.end(); ++it) {
                 (*it) += mOffset;
             }
-            lseek64(mFd, mOffset, SEEK_SET);
-            ::write(mFd, mInMemoryCache, mInMemoryCacheOffset);
-            ::write(mFd, ptr, bytes);
+            seekOrPostError(mFd, mOffset, SEEK_SET);
+            writeOrPostError(mFd, mInMemoryCache, mInMemoryCacheOffset);
+            writeOrPostError(mFd, ptr, bytes);
             mOffset += (bytes + mInMemoryCacheOffset);
 
             // All subsequent boxes will be written to the end of the file.
@@ -1488,13 +1488,54 @@
             mInMemoryCacheOffset += bytes;
         }
     } else {
-        ::write(mFd, ptr, size * nmemb);
+        writeOrPostError(mFd, ptr, bytes);
         mOffset += bytes;
     }
     return bytes;
 }
 
+void MPEG4Writer::writeOrPostError(int fd, const void* buf, size_t count) {
+    if (mWriteSeekErr == true)
+        return;
+    ssize_t bytesWritten = ::write(fd, buf, count);
+    /* Write as much as possible during stop() execution when there was an error
+     * (mWriteSeekErr == true) in the previous call to write() or lseek64().
+     */
+    if (bytesWritten == count)
+        return;
+    mWriteSeekErr = true;
+    // Note that errno is not changed even when bytesWritten < count.
+    ALOGE("writeOrPostError bytesWritten:%zd, count:%zu, error:%s(%d)", bytesWritten, count,
+          std::strerror(errno), errno);
+
+    // Can't guarantee that file is usable or write would succeed anymore, hence signal to stop.
+    sp<AMessage> msg = new AMessage(kWhatHandleIOError, mReflector);
+    status_t err = msg->post();
+    ALOGE("writeOrPostError post:%d", err);
+}
+
+void MPEG4Writer::seekOrPostError(int fd, off64_t offset, int whence) {
+    if (mWriteSeekErr == true)
+        return;
+    off64_t resOffset = lseek64(fd, offset, whence);
+    /* Allow to seek during stop() execution even when there was an error
+     * (mWriteSeekErr == true) in the previous call to write() or lseek64().
+     */
+    if (resOffset == offset)
+        return;
+    mWriteSeekErr = true;
+    ALOGE("seekOrPostError resOffset:%" PRIu64 ", offset:%" PRIu64 ", error:%s(%d)", resOffset,
+          offset, std::strerror(errno), errno);
+
+    // Can't guarantee that file is usable or seek would succeed anymore, hence signal to stop.
+    sp<AMessage> msg = new AMessage(kWhatHandleIOError, mReflector);
+    status_t err = msg->post();
+    ALOGE("seekOrPostError post:%d", err);
+}
+
 void MPEG4Writer::beginBox(uint32_t id) {
+    ALOGV("beginBox:%" PRIu32, id);
+
     mBoxes.push_back(mWriteBoxToMemory?
             mInMemoryCacheOffset: mOffset);
 
@@ -1503,6 +1544,7 @@
 }
 
 void MPEG4Writer::beginBox(const char *fourcc) {
+    ALOGV("beginBox:%s", fourcc);
     CHECK_EQ(strlen(fourcc), 4u);
 
     mBoxes.push_back(mWriteBoxToMemory?
@@ -1522,10 +1564,11 @@
         int32_t x = htonl(mInMemoryCacheOffset - offset);
         memcpy(mInMemoryCache + offset, &x, 4);
     } else {
-        lseek64(mFd, offset, SEEK_SET);
+        seekOrPostError(mFd, offset, SEEK_SET);
         writeInt32(mOffset - offset);
+        ALOGV("box size:%" PRIu64, mOffset - offset);
         mOffset -= 4;
-        lseek64(mFd, mOffset, SEEK_SET);
+        seekOrPostError(mFd, mOffset, SEEK_SET);
     }
 }
 
@@ -1679,6 +1722,79 @@
     return mStreamableFile;
 }
 
+bool MPEG4Writer::preAllocate(uint64_t wantSize) {
+    if (!mPreAllocationEnabled)
+        return true;
+
+    std::lock_guard<std::mutex> l(mFallocMutex);
+
+    if (mFallocateErr == true)
+        return false;
+
+    // approxMOOVHeadersSize has to be changed whenever its needed in the future.
+    uint64_t approxMOOVHeadersSize = 500;
+    // approxTrackHeadersSize has to be changed whenever its needed in the future.
+    const uint64_t approxTrackHeadersSize = 800;
+
+    uint64_t approxMOOVBoxSize = 0;
+    if (mPreAllocFirstTime) {
+        mPreAllocFirstTime = false;
+        approxMOOVBoxSize = approxMOOVHeadersSize + mFileLevelMetaDataSize + mMoovExtraSize +
+                            (approxTrackHeadersSize * numTracks());
+        ALOGV("firstTimeAllocation approxMOOVBoxSize:%" PRIu64, approxMOOVBoxSize);
+    }
+
+    uint64_t allTracksTotalMetaDataSizeEstimate = 0;
+    for (List<Track *>::iterator it = mTracks.begin(); it != mTracks.end(); ++it) {
+        allTracksTotalMetaDataSizeEstimate += ((*it)->trackMetaDataSize());
+    }
+    ALOGV(" allTracksTotalMetaDataSizeEstimate:%" PRIu64, allTracksTotalMetaDataSizeEstimate);
+
+    /* MOOVBoxSize will increase whenever a sample gets written to the file.  Enough to allocate
+     * the delta increase for each sample after the very first allocation.
+     */
+    uint64_t approxMetaDataSizeIncrease =
+            allTracksTotalMetaDataSizeEstimate - mPrevAllTracksTotalMetaDataSizeEstimate;
+    ALOGV("approxMetaDataSizeIncrease:%" PRIu64  " wantSize:%" PRIu64, approxMetaDataSizeIncrease,
+          wantSize);
+    mPrevAllTracksTotalMetaDataSizeEstimate = allTracksTotalMetaDataSizeEstimate;
+    ALOGV("mPreAllocateFileEndOffset:%" PRIu64 " mOffset:%" PRIu64, mPreAllocateFileEndOffset,
+          mOffset);
+    off64_t lastFileEndOffset = std::max(mPreAllocateFileEndOffset, mOffset);
+    uint64_t preAllocateSize = wantSize + approxMOOVBoxSize + approxMetaDataSizeIncrease;
+    ALOGV("preAllocateSize :%" PRIu64 " lastFileEndOffset:%" PRIu64, preAllocateSize,
+          lastFileEndOffset);
+
+    int res = fallocate(mFd, 0, lastFileEndOffset, preAllocateSize);
+    if (res == -1) {
+        ALOGE("fallocate err:%s, %d, fd:%d", strerror(errno), errno, mFd);
+        sp<AMessage> msg = new AMessage(kWhatHandleFallocateError, mReflector);
+        status_t err = msg->post();
+        mFallocateErr = true;
+        ALOGD("preAllocation post:%d", err);
+    } else {
+        mPreAllocateFileEndOffset = lastFileEndOffset + preAllocateSize;
+        ALOGV("mPreAllocateFileEndOffset:%" PRIu64, mPreAllocateFileEndOffset);
+    }
+    return (res == -1) ? false : true;
+}
+
+bool MPEG4Writer::truncatePreAllocation() {
+    bool status = true;
+    off64_t endOffset = std::max(mMdatEndOffset, mOffset);
+    /* if mPreAllocateFileEndOffset >= endOffset, then preallocation logic works good. (diff >= 0).
+     *  Otherwise, the logic needs to be modified.
+     */
+    ALOGD("ftruncate mPreAllocateFileEndOffset:%" PRId64 " mOffset:%" PRIu64
+          " mMdatEndOffset:%" PRIu64 " diff:%" PRId64, mPreAllocateFileEndOffset, mOffset,
+          mMdatEndOffset, mPreAllocateFileEndOffset - endOffset);
+    if(ftruncate(mFd, endOffset) == -1) {
+        ALOGE("ftruncate err:%s, %d, fd:%d", strerror(errno), errno, mFd);
+        status = false;
+    }
+    return status;
+}
+
 bool MPEG4Writer::exceedsFileSizeLimit() {
     // No limit
     if (mMaxFileSizeLimitBytes == 0) {
@@ -1764,6 +1880,9 @@
     return mStartTimestampUs;
 }
 
+/* Returns negative when reordering is needed because of BFrames or zero otherwise.
+ * CTTS values for tracks with BFrames offsets this negative value.
+ */
 int32_t MPEG4Writer::getStartTimeOffsetBFramesUs() {
     Mutex::Autolock autoLock(mLock);
     return mStartTimeOffsetBFramesUs;
@@ -1792,7 +1911,6 @@
       mEstimatedTrackSizeBytes(0),
       mSamplesHaveSameSize(true),
       mStszTableEntries(new ListTableEntries<uint32_t, 1>(1000)),
-      mStcoTableEntries(new ListTableEntries<uint32_t, 1>(1000)),
       mCo64TableEntries(new ListTableEntries<off64_t, 1>(1000)),
       mStscTableEntries(new ListTableEntries<uint32_t, 3>(1000)),
       mStssTableEntries(new ListTableEntries<uint32_t, 1>(1000)),
@@ -1807,6 +1925,8 @@
       mGotAllCodecSpecificData(false),
       mReachedEOS(false),
       mStartTimestampUs(-1),
+      mFirstSampleTimeRealUs(0),
+      mFirstSampleStartOffsetUs(0),
       mRotation(0),
       mDimgRefs("dimg"),
       mImageItemId(0),
@@ -1872,15 +1992,11 @@
     mIsMalformed = false;
     mTrackDurationUs = 0;
     mEstimatedTrackSizeBytes = 0;
-    mSamplesHaveSameSize = 0;
+    mSamplesHaveSameSize = false;
     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);
@@ -1908,25 +2024,24 @@
     mReachedEOS = false;
 }
 
+int64_t MPEG4Writer::Track::trackMetaDataSize() {
+    int64_t co64BoxSizeBytes = mCo64TableEntries->count() * 8;
+    int64_t stszBoxSizeBytes = mStszTableEntries->count() * 4;
+    int64_t trackMetaDataSize = mStscTableEntries->count() * 12 +  // stsc box size
+                                mStssTableEntries->count() * 4 +   // stss box size
+                                mSttsTableEntries->count() * 8 +   // stts box size
+                                mCttsTableEntries->count() * 8 +   // ctts box size
+                                mElstTableEntries->count() * 12 +  // elst box size
+                                co64BoxSizeBytes +                 // stco box size
+                                stszBoxSizeBytes;                  // stsz box size
+    return trackMetaDataSize;
+}
+
+
 void MPEG4Writer::Track::updateTrackSizeEstimate() {
     mEstimatedTrackSizeBytes = mMdatSizeBytes;  // media data size
-
     if (!isHeic() && !mOwner->isFileStreamable()) {
-        uint32_t stcoBoxCount = (mOwner->use32BitFileOffset()
-                                ? mStcoTableEntries->count()
-                                : mCo64TableEntries->count());
-        int64_t stcoBoxSizeBytes = stcoBoxCount * 4;
-        int64_t stszBoxSizeBytes = mSamplesHaveSameSize? 4: (mStszTableEntries->count() * 4);
-
-        // Reserved free space is not large enough to hold
-        // all meta data and thus wasted.
-        mEstimatedTrackSizeBytes += mStscTableEntries->count() * 12 +  // stsc box size
-                                    mStssTableEntries->count() * 4 +   // stss box size
-                                    mSttsTableEntries->count() * 8 +   // stts box size
-                                    mCttsTableEntries->count() * 8 +   // ctts box size
-                                    mElstTableEntries->count() * 12 +   // elst box size
-                                    stcoBoxSizeBytes +           // stco box size
-                                    stszBoxSizeBytes;            // stsz box size
+        mEstimatedTrackSizeBytes += trackMetaDataSize();
     }
 }
 
@@ -1941,24 +2056,20 @@
     mStssTableEntries->add(htonl(sampleId));
 }
 
-void MPEG4Writer::Track::addOneSttsTableEntry(
-        size_t sampleCount, int32_t duration) {
-
-    if (duration == 0) {
+void MPEG4Writer::Track::addOneSttsTableEntry(size_t sampleCount, int32_t delta) {
+    if (delta == 0) {
         ALOGW("0-duration samples found: %zu", sampleCount);
     }
     mSttsTableEntries->add(htonl(sampleCount));
-    mSttsTableEntries->add(htonl(duration));
+    mSttsTableEntries->add(htonl(delta));
 }
 
-void MPEG4Writer::Track::addOneCttsTableEntry(
-        size_t sampleCount, int32_t duration) {
-
+void MPEG4Writer::Track::addOneCttsTableEntry(size_t sampleCount, int32_t sampleOffset) {
     if (!mIsVideo) {
         return;
     }
     mCttsTableEntries->add(htonl(sampleCount));
-    mCttsTableEntries->add(htonl(duration));
+    mCttsTableEntries->add(htonl(sampleOffset));
 }
 
 void MPEG4Writer::Track::addOneElstTableEntry(
@@ -1971,16 +2082,30 @@
     mElstTableEntries->add(htonl((((uint32_t)mediaRate) << 16) | (uint32_t)mediaRateFraction));
 }
 
-status_t MPEG4Writer::setNextFd(int fd) {
-    ALOGV("addNextFd");
-    Mutex::Autolock l(mLock);
-    if (mLooper == NULL) {
-        mReflector = new AHandlerReflector<MPEG4Writer>(this);
+void MPEG4Writer::setupAndStartLooper() {
+    if (mLooper == nullptr) {
         mLooper = new ALooper;
-        mLooper->registerHandler(mReflector);
+        mLooper->setName("MP4WriterLooper");
         mLooper->start();
+        mReflector = new AHandlerReflector<MPEG4Writer>(this);
+        mLooper->registerHandler(mReflector);
     }
+}
 
+void MPEG4Writer::stopAndReleaseLooper() {
+    if (mLooper != nullptr) {
+        if (mReflector != nullptr) {
+            ALOGD("unregisterHandler");
+            mLooper->unregisterHandler(mReflector->id());
+            mReflector.clear();
+        }
+        mLooper->stop();
+        mLooper.clear();
+    }
+}
+
+status_t MPEG4Writer::setNextFd(int fd) {
+    Mutex::Autolock l(mLock);
     if (mNextFd != -1) {
         // No need to set a new FD yet.
         return INVALID_OPERATION;
@@ -2021,12 +2146,7 @@
 
 void MPEG4Writer::Track::addChunkOffset(off64_t offset) {
     CHECK(!mIsHeic);
-    if (mOwner->use32BitFileOffset()) {
-        uint32_t value = offset;
-        mStcoTableEntries->add(htonl(value));
-    } else {
-        mCo64TableEntries->add(hton64(offset));
-    }
+    mCo64TableEntries->add(hton64(offset));
 }
 
 void MPEG4Writer::Track::addItemOffsetAndSize(off64_t offset, size_t size, bool isExif) {
@@ -2195,6 +2315,22 @@
             notify(MEDIA_RECORDER_EVENT_INFO, MEDIA_RECORDER_INFO_NEXT_OUTPUT_FILE_STARTED, 0);
             break;
         }
+        // ::write() or lseek64() wasn't a success, file could be malformed
+        case kWhatHandleIOError: {
+            ALOGE("kWhatHandleIOError");
+            // Stop tracks' threads and main writer thread.
+            notify(MEDIA_RECORDER_EVENT_ERROR, MEDIA_RECORDER_ERROR_UNKNOWN, ERROR_MALFORMED);
+            stop();
+            break;
+        }
+        // fallocate() failed, hence notify app about it and stop().
+        case kWhatHandleFallocateError: {
+            ALOGE("kWhatHandleFallocateError");
+            //TODO: introduce new MEDIA_RECORDER_INFO_STOPPED instead MEDIA_RECORDER_INFO_UNKNOWN?
+            notify(MEDIA_RECORDER_EVENT_INFO, MEDIA_RECORDER_INFO_UNKNOWN, ERROR_IO);
+            stop();
+            break;
+        }
         default:
         TRESPASS();
     }
@@ -2236,7 +2372,6 @@
     stop();
 
     delete mStszTableEntries;
-    delete mStcoTableEntries;
     delete mCo64TableEntries;
     delete mStscTableEntries;
     delete mSttsTableEntries;
@@ -2245,7 +2380,6 @@
     delete mElstTableEntries;
 
     mStszTableEntries = NULL;
-    mStcoTableEntries = NULL;
     mCo64TableEntries = NULL;
     mStscTableEntries = NULL;
     mSttsTableEntries = NULL;
@@ -2385,7 +2519,6 @@
             if (interChunkTimeUs > it->mPrevChunkTimestampUs) {
                 it->mMaxInterChunkDurUs = interChunkTimeUs;
             }
-
             return true;
         }
     }
@@ -2544,10 +2677,11 @@
     mDone = true;
 
     void *dummy;
-    pthread_join(mThread, &dummy);
-    status_t err = static_cast<status_t>(reinterpret_cast<uintptr_t>(dummy));
-
-    ALOGD("%s track stopped. %s source", getTrackType(), stopSource ? "Stop" : "Not Stop");
+    status_t err = pthread_join(mThread, &dummy);
+    WARN_UNLESS(err == 0, "track::stop: pthread_join status:%d", err);
+    err = static_cast<status_t>(reinterpret_cast<uintptr_t>(dummy));
+    WARN_UNLESS(err == 0, "%s track stopped. Status :%d. %s source", getTrackType(), err,
+                stopSource ? "Stop" : "Not Stop");
     return err;
 }
 
@@ -2959,11 +3093,11 @@
     uint32_t lastSamplesPerChunk = 0;
 
     if (mIsAudio) {
-        prctl(PR_SET_NAME, (unsigned long)"AudioTrackEncoding", 0, 0, 0);
+        prctl(PR_SET_NAME, (unsigned long)"AudioTrackWriterThread", 0, 0, 0);
     } else if (mIsVideo) {
-        prctl(PR_SET_NAME, (unsigned long)"VideoTrackEncoding", 0, 0, 0);
+        prctl(PR_SET_NAME, (unsigned long)"VideoTrackWriterThread", 0, 0, 0);
     } else {
-        prctl(PR_SET_NAME, (unsigned long)"MetadataTrackEncoding", 0, 0, 0);
+        prctl(PR_SET_NAME, (unsigned long)"MetadataTrackWriterThread", 0, 0, 0);
     }
 
     if (mOwner->isRealTimeRecording()) {
@@ -2983,6 +3117,7 @@
             continue;
         }
 
+
         // If the codec specific data has not been received yet, delay pause.
         // After the codec specific data is received, discard what we received
         // when the track is to be paused.
@@ -2993,7 +3128,6 @@
         }
 
         ++count;
-
         int32_t isCodecConfig;
         if (buffer->meta_data().findInt32(kKeyIsCodecConfig, &isCodecConfig)
                 && isCodecConfig) {
@@ -3060,6 +3194,18 @@
             }
         }
 
+        /*
+         * Reserve space in the file for the current sample + to be written MOOV box. If reservation
+         * for a new sample fails, preAllocate(...) stops muxing session completely. Stop() could
+         * write MOOV box successfully as space for the same was reserved in the prior call.
+         * Release the current buffer/sample only here.
+         */
+        if (!mOwner->preAllocate(buffer->range_length())) {
+            buffer->release();
+            buffer = nullptr;
+            break;
+        }
+
         ++nActualFrames;
 
         // Make a deep copy of the MediaBuffer and Metadata and release
@@ -3071,7 +3217,6 @@
         meta_data = new MetaData(buffer->meta_data());
         buffer->release();
         buffer = NULL;
-
         if (isExif) {
             copy->meta_data().setInt32(kKeyExifTiffOffset, tiffHdrOffset);
         }
@@ -3119,10 +3264,10 @@
         if (mOwner->approachingFileSizeLimit()) {
             mOwner->notifyApproachingLimit();
         }
-
         int32_t isSync = false;
         meta_data->findInt32(kKeyIsSyncFrame, &isSync);
         CHECK(meta_data->findInt64(kKeyTime, &timestampUs));
+        timestampUs += mFirstSampleStartOffsetUs;
 
         // For video, skip the first several non-key frames until getting the first key frame.
         if (mIsVideo && !mGotStartKeyFrame && !isSync) {
@@ -3134,10 +3279,13 @@
             mGotStartKeyFrame = true;
         }
 ////////////////////////////////////////////////////////////////////////////////
-
         if (!mIsHeic) {
             if (mStszTableEntries->count() == 0) {
                 mFirstSampleTimeRealUs = systemTime() / 1000;
+                if (timestampUs < 0 && mFirstSampleStartOffsetUs == 0) {
+                    mFirstSampleStartOffsetUs = -timestampUs;
+                    timestampUs = 0;
+                }
                 mOwner->setStartTimestampUs(timestampUs);
                 mStartTimestampUs = timestampUs;
                 previousPausedDurationUs = mStartTimestampUs;
@@ -3309,17 +3457,17 @@
                 }
             }
             mStszTableEntries->add(htonl(sampleSize));
+
             if (mStszTableEntries->count() > 2) {
 
                 // Force the first sample to have its own stts entry so that
                 // we can adjust its value later to maintain the A/V sync.
-                if (mStszTableEntries->count() == 3 || currDurationTicks != lastDurationTicks) {
+                if (lastDurationTicks && currDurationTicks != lastDurationTicks) {
                     addOneSttsTableEntry(sampleCount, lastDurationTicks);
                     sampleCount = 1;
                 } else {
                     ++sampleCount;
                 }
-
             }
             if (mSamplesHaveSameSize) {
                 if (mStszTableEntries->count() >= 2 && previousSampleSize != sampleSize) {
@@ -3352,11 +3500,7 @@
             if (mIsHeic) {
                 addItemOffsetAndSize(offset, bytesWritten, isExif);
             } else {
-                uint32_t count = (mOwner->use32BitFileOffset()
-                            ? mStcoTableEntries->count()
-                            : mCo64TableEntries->count());
-
-                if (count == 0) {
+                if (mCo64TableEntries->count() == 0) {
                     addChunkOffset(offset);
                 }
             }
@@ -3392,9 +3536,7 @@
                 }
             }
         }
-
     }
-
     if (isTrackMalFormed()) {
         dumpTimeStamps();
         err = ERROR_MALFORMED;
@@ -3426,17 +3568,10 @@
             ++sampleCount;  // Count for the last sample
         }
 
-        if (mStszTableEntries->count() <= 2) {
-            addOneSttsTableEntry(1, lastDurationTicks);
-            if (sampleCount - 1 > 0) {
-                addOneSttsTableEntry(sampleCount - 1, lastDurationTicks);
-            }
-        } else {
-            addOneSttsTableEntry(sampleCount, lastDurationTicks);
-        }
+        addOneSttsTableEntry(sampleCount, lastDurationTicks);
 
-        // The last ctts box may not have been written yet, and this
-        // is to make sure that we write out the last ctts box.
+        // The last ctts box entry may not have been written yet, and this
+        // is to make sure that we write out the last ctts box entry.
         if (currCttsOffsetTimeTicks == lastCttsOffsetTimeTicks) {
             if (cttsSampleCount > 0) {
                 addOneCttsTableEntry(cttsSampleCount, lastCttsOffsetTimeTicks);
@@ -3687,7 +3822,7 @@
                       "Metadata";
 }
 
-void MPEG4Writer::Track::writeTrackHeader(bool use32BitOffset) {
+void MPEG4Writer::Track::writeTrackHeader() {
     uint32_t now = getMpeg4Time();
     mOwner->beginBox("trak");
         writeTkhdBox(now);
@@ -3704,7 +3839,7 @@
                     writeNmhdBox();
                 }
                 writeDinfBox();
-                writeStblBox(use32BitOffset);
+                writeStblBox();
             mOwner->endBox();  // minf
         mOwner->endBox();  // mdia
     mOwner->endBox();  // trak
@@ -3720,7 +3855,7 @@
     return mMinCttsOffsetTimeUs;
 }
 
-void MPEG4Writer::Track::writeStblBox(bool use32BitOffset) {
+void MPEG4Writer::Track::writeStblBox() {
     mOwner->beginBox("stbl");
     mOwner->beginBox("stsd");
     mOwner->writeInt32(0);               // version=0, flags=0
@@ -3740,7 +3875,7 @@
     }
     writeStszBox();
     writeStscBox();
-    writeStcoBox(use32BitOffset);
+    writeCo64Box();
     mOwner->endBox();  // stbl
 }
 
@@ -4099,19 +4234,122 @@
     mOwner->endBox();
 }
 
-void MPEG4Writer::Track::writeEdtsBox(){
+void MPEG4Writer::Track::writeEdtsBox() {
     ALOGV("%s : getStartTimeOffsetTimeUs of track:%" PRId64 " us", getTrackType(),
         getStartTimeOffsetTimeUs());
 
-    // Prepone video playback.
-    if (mMinCttsOffsetTicks != mMaxCttsOffsetTicks) {
-        int32_t mvhdTimeScale = mOwner->getTimeScale();
-        uint32_t tkhdDuration = (getDurationUs() * mvhdTimeScale + 5E5) / 1E6;
-        int64_t mediaTime = ((kMaxCttsOffsetTimeUs - getMinCttsOffsetTimeUs())
-            * mTimeScale + 5E5) / 1E6;
-        if (tkhdDuration > 0 && mediaTime > 0) {
-            addOneElstTableEntry(tkhdDuration, mediaTime, 1, 0);
+    int32_t mvhdTimeScale = mOwner->getTimeScale();
+    ALOGV("mvhdTimeScale:%" PRId32, mvhdTimeScale);
+    /* trackStartOffsetUs of this track is the sum of longest offset needed by a track among all
+     * tracks with B frames in this movie and the start offset of this track.
+     */
+    int64_t trackStartOffsetUs = getStartTimeOffsetTimeUs();
+    ALOGV("trackStartOffsetUs:%" PRIu64, trackStartOffsetUs);
+
+    // Longest offset needed by a track among all tracks with B frames.
+    int32_t movieStartOffsetBFramesUs = mOwner->getStartTimeOffsetBFramesUs();
+    ALOGV("movieStartOffsetBFramesUs:%" PRId32, movieStartOffsetBFramesUs);
+
+    // This media/track's real duration (sum of duration of all samples in this track).
+    uint32_t tkhdDurationTicks = (mTrackDurationUs * mvhdTimeScale + 5E5) / 1E6;
+    ALOGV("mTrackDurationUs:%" PRId64 "us", mTrackDurationUs);
+
+    int64_t movieStartTimeUs = mOwner->getStartTimestampUs();
+    ALOGV("movieStartTimeUs:%" PRId64, movieStartTimeUs);
+
+    int64_t trackStartTimeUs = movieStartTimeUs + trackStartOffsetUs;
+    ALOGV("trackStartTimeUs:%" PRId64, trackStartTimeUs);
+
+    if (movieStartOffsetBFramesUs == 0) {
+        // No B frames in any tracks.
+        if (trackStartOffsetUs > 0) {
+            // Track with positive start offset.
+            uint32_t segDuration = (trackStartOffsetUs * mvhdTimeScale + 5E5) / 1E6;
+            ALOGV("segDuration:%" PRIu64 "us", trackStartOffsetUs);
+            /* The first entry is an empty edit (indicated by media_time equal to -1), and its
+             * duration (segment_duration) is equal to the difference of the presentation times of
+             * the earliest media sample among all tracks and the earliest media sample of the track.
+             */
+            ALOGV("Empty edit list entry");
+            addOneElstTableEntry(segDuration, -1, 1, 0);
+            addOneElstTableEntry(tkhdDurationTicks, 0, 1, 0);
+        } else if (mFirstSampleStartOffsetUs > 0) {
+            // Track with start time < 0 / negative start offset.
+            ALOGV("Normal edit list entry");
+            int32_t mediaTime = (mFirstSampleStartOffsetUs * mTimeScale + 5E5) / 1E6;
+            int32_t firstSampleOffsetTicks =
+                    (mFirstSampleStartOffsetUs * mvhdTimeScale + 5E5) / 1E6;
+            // samples before 0 don't count in for duration, hence subtract firstSampleOffsetTicks.
+            addOneElstTableEntry(tkhdDurationTicks - firstSampleOffsetTicks, mediaTime, 1, 0);
+        } else {
+            // Track starting at zero.
+            ALOGV("No edit list entry required for this track");
         }
+    } else if (movieStartOffsetBFramesUs < 0) {
+        // B frames present in at least one of the tracks.
+        ALOGV("writeEdtsBox - Reordered frames(B frames) present");
+        if (trackStartOffsetUs == std::abs(movieStartOffsetBFramesUs)) {
+            // Track starting at 0, no start offset.
+            // TODO : need to take care of mFirstSampleStartOffsetUs > 0 and trackStartOffsetUs > 0
+            // separately
+            if (mMinCttsOffsetTicks == mMaxCttsOffsetTicks) {
+                // Video with no B frame or non-video track.
+                if (mFirstSampleStartOffsetUs > 0) {
+                    // Track with start time < 0 / negative start offset.
+                    ALOGV("Normal edit list entry");
+                    ALOGV("mFirstSampleStartOffsetUs:%" PRId64 "us", mFirstSampleStartOffsetUs);
+                    int32_t mediaTimeTicks = (mFirstSampleStartOffsetUs * mTimeScale + 5E5) / 1E6;
+                    int32_t firstSampleOffsetTicks =
+                            (mFirstSampleStartOffsetUs * mvhdTimeScale + 5E5) / 1E6;
+                    // Samples before 0 don't count for duration, subtract firstSampleOffsetTicks.
+                    addOneElstTableEntry(tkhdDurationTicks - firstSampleOffsetTicks, mediaTimeTicks,
+                                         1, 0);
+                }
+            } else {
+                // Track with B Frames.
+                int32_t mediaTimeTicks = (trackStartOffsetUs * mTimeScale + 5E5) / 1E6;
+                ALOGV("mediaTime:%" PRId64 "us", trackStartOffsetUs);
+                ALOGV("Normal edit list entry to negate start offset by B Frames in others tracks");
+                addOneElstTableEntry(tkhdDurationTicks, mediaTimeTicks, 1, 0);
+            }
+        } else if (trackStartOffsetUs > std::abs(movieStartOffsetBFramesUs)) {
+            // Track with start offset.
+            ALOGV("Tracks starting > 0");
+            int32_t editDurationTicks = 0;
+            if (mMinCttsOffsetTicks == mMaxCttsOffsetTicks) {
+                // Video with no B frame or non-video track.
+                editDurationTicks =
+                        ((trackStartOffsetUs + movieStartOffsetBFramesUs) * mvhdTimeScale + 5E5) /
+                        1E6;
+                ALOGV("editDuration:%" PRId64 "us", (trackStartOffsetUs + movieStartOffsetBFramesUs));
+            } else {
+                // Track with B frame.
+                int32_t trackStartOffsetBFramesUs = getMinCttsOffsetTimeUs() - kMaxCttsOffsetTimeUs;
+                ALOGV("trackStartOffsetBFramesUs:%" PRId32, trackStartOffsetBFramesUs);
+                editDurationTicks =
+                        ((trackStartOffsetUs + movieStartOffsetBFramesUs +
+                          trackStartOffsetBFramesUs) * mvhdTimeScale + 5E5) / 1E6;
+                ALOGV("editDuration:%" PRId64 "us", (trackStartOffsetUs + movieStartOffsetBFramesUs + trackStartOffsetBFramesUs));
+            }
+            ALOGV("editDurationTicks:%" PRIu32, editDurationTicks);
+            if (editDurationTicks > 0) {
+                ALOGV("Empty edit list entry");
+                addOneElstTableEntry(editDurationTicks, -1, 1, 0);
+                addOneElstTableEntry(tkhdDurationTicks, 0, 1, 0);
+            } else if (editDurationTicks < 0) {
+                // Only video tracks with B Frames would hit this case.
+                ALOGV("Edit list entry to negate start offset by B frames in other tracks");
+                addOneElstTableEntry(tkhdDurationTicks, std::abs(editDurationTicks), 1, 0);
+            } else {
+                ALOGV("No edit list entry needed for this track");
+            }
+        } else {
+            // Not expecting this case as we adjust negative start timestamps to zero.
+            ALOGW("trackStartOffsetUs < std::abs(movieStartOffsetBFramesUs)");
+        }
+    } else {
+        // Neither B frames present nor absent! or any other case?.
+        ALOGW("movieStartOffsetBFramesUs > 0");
     }
 
     if (mElstTableEntries->count() == 0) {
@@ -4253,19 +4491,6 @@
 void MPEG4Writer::Track::writeSttsBox() {
     mOwner->beginBox("stts");
     mOwner->writeInt32(0);  // version=0, flags=0
-    if (mMinCttsOffsetTicks == mMaxCttsOffsetTicks) {
-        // For non-vdeio tracks or video tracks without ctts table,
-        // adjust duration of first sample for tracks to account for
-        // first sample not starting at the media start time.
-        // TODO: consider signaling this using some offset
-        // as this is not quite correct.
-        uint32_t duration;
-        CHECK(mSttsTableEntries->get(duration, 1));
-        duration = htonl(duration);  // Back to host byte order
-        int32_t startTimeOffsetScaled = (((getStartTimeOffsetTimeUs() +
-            mOwner->getStartTimeOffsetBFramesUs()) * mTimeScale) + 500000LL) / 1000000LL;
-        mSttsTableEntries->set(htonl((int32_t)duration + startTimeOffsetScaled), 1);
-    }
     mSttsTableEntries->write(mOwner);
     mOwner->endBox();  // stts
 }
@@ -4286,7 +4511,9 @@
 
     mOwner->beginBox("ctts");
     mOwner->writeInt32(0);  // version=0, flags=0
-    int64_t deltaTimeUs = kMaxCttsOffsetTimeUs - getStartTimeOffsetTimeUs();
+    // Adjust ctts entries to have only offset needed for reordering frames.
+    int64_t deltaTimeUs = mMinCttsOffsetTimeUs;
+    ALOGV("ctts deltaTimeUs:%" PRId64, deltaTimeUs);
     int64_t delta = (deltaTimeUs * mTimeScale + 500000LL) / 1000000LL;
     mCttsTableEntries->adjustEntries([delta](size_t /* ix */, uint32_t (&value)[2]) {
         // entries are <count, ctts> pairs; adjust only ctts
@@ -4327,14 +4554,10 @@
     mOwner->endBox();  // stsc
 }
 
-void MPEG4Writer::Track::writeStcoBox(bool use32BitOffset) {
-    mOwner->beginBox(use32BitOffset? "stco": "co64");
+void MPEG4Writer::Track::writeCo64Box() {
+    mOwner->beginBox("co64");
     mOwner->writeInt32(0);  // version=0, flags=0
-    if (use32BitOffset) {
-        mStcoTableEntries->write(mOwner);
-    } else {
-        mCo64TableEntries->write(mOwner);
-    }
+    mCo64TableEntries->write(mOwner);
     mOwner->endBox();  // stco or co64
 }
 
diff --git a/media/libstagefright/MediaCodec.cpp b/media/libstagefright/MediaCodec.cpp
index 257dd0f..709bc08 100644
--- a/media/libstagefright/MediaCodec.cpp
+++ b/media/libstagefright/MediaCodec.cpp
@@ -39,7 +39,7 @@
 #include <mediadrm/ICrypto.h>
 #include <media/IOMX.h>
 #include <media/MediaCodecBuffer.h>
-#include <media/MediaAnalyticsItem.h>
+#include <media/MediaMetricsItem.h>
 #include <media/MediaResource.h>
 #include <media/stagefright/foundation/ABuffer.h>
 #include <media/stagefright/foundation/ADebug.h>
@@ -101,6 +101,10 @@
 static const char *kCodecLatencyHist = "android.media.mediacodec.latency.hist"; /* in us */
 static const char *kCodecLatencyUnknown = "android.media.mediacodec.latency.unknown";
 
+static const char *kCodecNumLowLatencyModeOn = "android.media.mediacodec.low-latency.on";  /* 0..n */
+static const char *kCodecNumLowLatencyModeOff = "android.media.mediacodec.low-latency.off";  /* 0..n */
+static const char *kCodecFirstFrameIndexLowLatencyModeOn = "android.media.mediacodec.low-latency.first-frame";  /* 0..n */
+
 // the kCodecRecent* fields appear only in getMetrics() results
 static const char *kCodecRecentLatencyMax = "android.media.mediacodec.recent.max";      /* in us */
 static const char *kCodecRecentLatencyMin = "android.media.mediacodec.recent.min";      /* in us */
@@ -583,7 +587,12 @@
       mHaveInputSurface(false),
       mHavePendingInputBuffers(false),
       mCpuBoostRequested(false),
-      mLatencyUnknown(0) {
+      mLatencyUnknown(0),
+      mNumLowLatencyEnables(0),
+      mNumLowLatencyDisables(0),
+      mIsLowLatencyModeOn(false),
+      mIndexOfFirstFrameWhenLowLatencyOn(-1),
+      mInputBufferCounter(0) {
     if (uid == kNoUid) {
         mUid = AIBinder_getCallingUid();
     } else {
@@ -616,6 +625,16 @@
         }
         mRecentHead = 0;
     }
+
+    {
+        Mutex::Autolock al(mLatencyLock);
+        mBuffersInFlight.clear();
+        mNumLowLatencyEnables = 0;
+        mNumLowLatencyDisables = 0;
+        mIsLowLatencyModeOn = false;
+        mIndexOfFirstFrameWhenLowLatencyOn = -1;
+        mInputBufferCounter = 0;
+    }
 }
 
 void MediaCodec::updateMediametrics() {
@@ -641,6 +660,13 @@
         mediametrics_setInt64(mMetricsHandle, kCodecLatencyUnknown, mLatencyUnknown);
     }
 
+    {
+        Mutex::Autolock al(mLatencyLock);
+        mediametrics_setInt64(mMetricsHandle, kCodecNumLowLatencyModeOn, mNumLowLatencyEnables);
+        mediametrics_setInt64(mMetricsHandle, kCodecNumLowLatencyModeOff, mNumLowLatencyDisables);
+        mediametrics_setInt64(mMetricsHandle, kCodecFirstFrameIndexLowLatencyModeOn,
+                              mIndexOfFirstFrameWhenLowLatencyOn);
+    }
 #if 0
     // enable for short term, only while debugging
     updateEphemeralMediametrics(mMetricsHandle);
@@ -697,6 +723,22 @@
     }
 }
 
+void MediaCodec::updateLowLatency(const sp<AMessage> &msg) {
+    int32_t lowLatency = 0;
+    if (msg->findInt32("low-latency", &lowLatency)) {
+        Mutex::Autolock al(mLatencyLock);
+        if (lowLatency > 0) {
+            ++mNumLowLatencyEnables;
+            // This is just an estimate since low latency mode change happens ONLY at key frame
+            mIsLowLatencyModeOn = true;
+        } else if (lowLatency == 0) {
+            ++mNumLowLatencyDisables;
+            // This is just an estimate since low latency mode change happens ONLY at key frame
+            mIsLowLatencyModeOn = false;
+        }
+    }
+}
+
 bool MediaCodec::Histogram::setup(int nbuckets, int64_t width, int64_t floor)
 {
     if (nbuckets <= 0 || width <= 0) {
@@ -813,6 +855,11 @@
         // XXX: we *could* make sure that the time is later than the end of queue
         // as part of a consistency check...
         mBuffersInFlight.push_back(startdata);
+
+        if (mIsLowLatencyModeOn && mIndexOfFirstFrameWhenLowLatencyOn < 0) {
+            mIndexOfFirstFrameWhenLowLatencyOn = mInputBufferCounter;
+        }
+        ++mInputBufferCounter;
     }
 }
 
@@ -1133,6 +1180,8 @@
         }
     }
 
+    updateLowLatency(format);
+
     msg->setMessage("format", format);
     msg->setInt32("flags", flags);
     msg->setObject("surface", surface);
@@ -3714,6 +3763,7 @@
 }
 
 status_t MediaCodec::onSetParameters(const sp<AMessage> &params) {
+    updateLowLatency(params);
     mCodec->signalSetParameters(params);
 
     return OK;
diff --git a/media/libstagefright/MediaCodecSource.cpp b/media/libstagefright/MediaCodecSource.cpp
index 7243b82..7fec072 100644
--- a/media/libstagefright/MediaCodecSource.cpp
+++ b/media/libstagefright/MediaCodecSource.cpp
@@ -25,7 +25,7 @@
 #include <mediadrm/ICrypto.h>
 #include <media/MediaBufferHolder.h>
 #include <media/MediaCodecBuffer.h>
-#include <media/MediaSource.h>
+#include <media/stagefright/MediaSource.h>
 #include <media/stagefright/foundation/ABuffer.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/ALooper.h>
diff --git a/media/libstagefright/MediaMuxer.cpp b/media/libstagefright/MediaMuxer.cpp
index 7ebdb1a..3808d7e 100644
--- a/media/libstagefright/MediaMuxer.cpp
+++ b/media/libstagefright/MediaMuxer.cpp
@@ -24,7 +24,7 @@
 #include <media/stagefright/MediaMuxer.h>
 
 #include <media/mediarecorder.h>
-#include <media/MediaSource.h>
+#include <media/stagefright/MediaSource.h>
 #include <media/stagefright/foundation/ABuffer.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/AMessage.h>
@@ -48,7 +48,8 @@
 
 MediaMuxer::MediaMuxer(int fd, OutputFormat format)
     : mFormat(format),
-      mState(UNINITIALIZED) {
+      mState(UNINITIALIZED),
+      mError(OK) {
     if (isMp4Format(format)) {
         mWriter = new MPEG4Writer(fd);
     } else if (format == OUTPUT_FORMAT_WEBM) {
@@ -58,6 +59,7 @@
     }
 
     if (mWriter != NULL) {
+        mWriter->setMuxerListener(this);
         mFileMeta = new MetaData;
         if (format == OUTPUT_FORMAT_HEIF) {
             // Note that the key uses recorder file types.
@@ -156,14 +158,22 @@
 status_t MediaMuxer::stop() {
     Mutex::Autolock autoLock(mMuxerLock);
 
-    if (mState == STARTED) {
+    if (mState == STARTED || mState == ERROR) {
         mState = STOPPED;
         for (size_t i = 0; i < mTrackList.size(); i++) {
             if (mTrackList[i]->stop() != OK) {
                 return INVALID_OPERATION;
             }
         }
-        return mWriter->stop();
+        status_t err = mWriter->stop();
+        if (err != OK || mError != OK) {
+            ALOGE("stop err: %d, mError:%d", err, mError);
+        }
+        // Prioritize mError over err.
+        if (mError != OK) {
+            err = mError;
+        }
+        return err;
     } else {
         ALOGE("stop() is called in invalid state %d", mState);
         return INVALID_OPERATION;
@@ -212,4 +222,29 @@
     return currentTrack->pushBuffer(mediaBuffer);
 }
 
+void MediaMuxer::notify(int msg, int ext1, int ext2) {
+    switch (msg) {
+        case MEDIA_RECORDER_EVENT_ERROR:
+        case MEDIA_RECORDER_TRACK_EVENT_ERROR: {
+            Mutex::Autolock autoLock(mMuxerLock);
+            mState = ERROR;
+            mError = ext2;
+            ALOGW("message received msg=%d, ext1=%d, ext2=%d", msg, ext1, ext2);
+            break;
+        }
+        case MEDIA_RECORDER_EVENT_INFO: {
+            if (ext1 == MEDIA_RECORDER_INFO_UNKNOWN) {
+                Mutex::Autolock autoLock(mMuxerLock);
+                mState = ERROR;
+                mError = ext2;
+                ALOGW("message received msg=%d, ext1=%d, ext2=%d", msg, ext1, ext2);
+            }
+            break;
+        }
+        default:
+            // Ignore INFO and other notifications for now.
+            break;
+    }
+}
+
 }  // namespace android
diff --git a/media/libstagefright/MediaSource.cpp b/media/libstagefright/MediaSource.cpp
index 5bbd3d8..ee0031f 100644
--- a/media/libstagefright/MediaSource.cpp
+++ b/media/libstagefright/MediaSource.cpp
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-#include <media/MediaSource.h>
+#include <media/stagefright/MediaSource.h>
 #include <media/IMediaSource.h>
 
 namespace android {
diff --git a/media/libstagefright/NuMediaExtractor.cpp b/media/libstagefright/NuMediaExtractor.cpp
index 66fb4b0..9fe09fa 100644
--- a/media/libstagefright/NuMediaExtractor.cpp
+++ b/media/libstagefright/NuMediaExtractor.cpp
@@ -25,7 +25,7 @@
 #include <datasource/DataSourceFactory.h>
 #include <datasource/FileSource.h>
 #include <media/DataSource.h>
-#include <media/MediaSource.h>
+#include <media/stagefright/MediaSource.h>
 #include <media/stagefright/foundation/ABuffer.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/AMessage.h>
diff --git a/media/libstagefright/OggWriter.cpp b/media/libstagefright/OggWriter.cpp
index b738fef..0bc5976 100644
--- a/media/libstagefright/OggWriter.cpp
+++ b/media/libstagefright/OggWriter.cpp
@@ -22,7 +22,7 @@
 #include <sys/stat.h>
 #include <sys/types.h>
 
-#include <media/MediaSource.h>
+#include <media/stagefright/MediaSource.h>
 #include <media/mediarecorder.h>
 #include <media/stagefright/MediaBuffer.h>
 #include <media/stagefright/MediaDefs.h>
diff --git a/media/libstagefright/RemoteMediaExtractor.cpp b/media/libstagefright/RemoteMediaExtractor.cpp
index 29c3a35..c841d10 100644
--- a/media/libstagefright/RemoteMediaExtractor.cpp
+++ b/media/libstagefright/RemoteMediaExtractor.cpp
@@ -20,8 +20,8 @@
 
 #include <binder/IPCThreadState.h>
 #include <media/stagefright/InterfaceUtils.h>
-#include <media/MediaAnalyticsItem.h>
-#include <media/MediaSource.h>
+#include <media/MediaMetricsItem.h>
+#include <media/stagefright/MediaSource.h>
 #include <media/stagefright/RemoteMediaExtractor.h>
 
 // still doing some on/off toggling here.
@@ -48,20 +48,20 @@
      mSource(source),
      mExtractorPlugin(plugin) {
 
-    mAnalyticsItem = nullptr;
+    mMetricsItem = nullptr;
     if (MEDIA_LOG) {
-        mAnalyticsItem = MediaAnalyticsItem::create(kKeyExtractor);
+        mMetricsItem = mediametrics::Item::create(kKeyExtractor);
 
         // we're in the extractor service, we want to attribute to the app
         // that invoked us.
         int uid = IPCThreadState::self()->getCallingUid();
-        mAnalyticsItem->setUid(uid);
+        mMetricsItem->setUid(uid);
 
         // track the container format (mpeg, aac, wvm, etc)
         size_t ntracks = extractor->countTracks();
-        mAnalyticsItem->setCString(kExtractorFormat, extractor->name());
+        mMetricsItem->setCString(kExtractorFormat, extractor->name());
         // tracks (size_t)
-        mAnalyticsItem->setInt32(kExtractorTracks, ntracks);
+        mMetricsItem->setInt32(kExtractorTracks, ntracks);
         // metadata
         MetaDataBase pMetaData;
         if (extractor->getMetaData(pMetaData) == OK) {
@@ -70,7 +70,7 @@
             // 'mime'
             const char *mime = nullptr;
             if (pMetaData.findCString(kKeyMIMEType, &mime)) {
-                mAnalyticsItem->setCString(kExtractorMime,  mime);
+                mMetricsItem->setCString(kExtractorMime,  mime);
             }
             // what else is interesting and not already available?
         }
@@ -84,15 +84,15 @@
     mExtractorPlugin = nullptr;
     // log the current record, provided it has some information worth recording
     if (MEDIA_LOG) {
-        if (mAnalyticsItem != nullptr) {
-            if (mAnalyticsItem->count() > 0) {
-                mAnalyticsItem->selfrecord();
+        if (mMetricsItem != nullptr) {
+            if (mMetricsItem->count() > 0) {
+                mMetricsItem->selfrecord();
             }
         }
     }
-    if (mAnalyticsItem != nullptr) {
-        delete mAnalyticsItem;
-        mAnalyticsItem = nullptr;
+    if (mMetricsItem != nullptr) {
+        delete mMetricsItem;
+        mMetricsItem = nullptr;
     }
 }
 
@@ -123,11 +123,11 @@
 }
 
 status_t RemoteMediaExtractor::getMetrics(Parcel *reply) {
-    if (mAnalyticsItem == nullptr || reply == nullptr) {
+    if (mMetricsItem == nullptr || reply == nullptr) {
         return UNKNOWN_ERROR;
     }
 
-    mAnalyticsItem->writeToParcel(reply);
+    mMetricsItem->writeToParcel(reply);
     return OK;
 }
 
diff --git a/media/libstagefright/codecs/amrnb/common/Android.bp b/media/libstagefright/codecs/amrnb/common/Android.bp
index 772ebf9..ea8b073 100644
--- a/media/libstagefright/codecs/amrnb/common/Android.bp
+++ b/media/libstagefright/codecs/amrnb/common/Android.bp
@@ -1,4 +1,4 @@
-cc_library_shared {
+cc_library {
     name: "libstagefright_amrnb_common",
     vendor_available: true,
 
diff --git a/media/libstagefright/codecs/amrwb/test/AmrwbDecTestEnvironment.h b/media/libstagefright/codecs/amrwb/test/AmrwbDecTestEnvironment.h
new file mode 100644
index 0000000..84d337d
--- /dev/null
+++ b/media/libstagefright/codecs/amrwb/test/AmrwbDecTestEnvironment.h
@@ -0,0 +1,72 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __AMRWBDEC_TEST_ENVIRONMENT_H__
+#define __AMRWBDEC_TEST_ENVIRONMENT_H__
+
+#include <gtest/gtest.h>
+
+#include <getopt.h>
+
+using namespace std;
+
+class AmrwbDecTestEnvironment : public ::testing::Environment {
+  public:
+    AmrwbDecTestEnvironment() : res("/data/local/tmp/") {}
+
+    // Parses the command line arguments
+    int initFromOptions(int argc, char **argv);
+
+    void setRes(const char *_res) { res = _res; }
+
+    const string getRes() const { return res; }
+
+  private:
+    string res;
+};
+
+int AmrwbDecTestEnvironment::initFromOptions(int argc, char **argv) {
+    static struct option options[] = {{"res", required_argument, 0, 'P'}, {0, 0, 0, 0}};
+
+    while (true) {
+        int index = 0;
+        int c = getopt_long(argc, argv, "P:", options, &index);
+        if (c == -1) {
+            break;
+        }
+
+        switch (c) {
+            case 'P':
+                setRes(optarg);
+                break;
+            default:
+                break;
+        }
+    }
+
+    if (optind < argc) {
+        fprintf(stderr,
+                "unrecognized option: %s\n\n"
+                "usage: %s <gtest options> <test options>\n\n"
+                "test options are:\n\n"
+                "-P, --path: Resource files directory location\n",
+                argv[optind ?: 1], argv[0]);
+        return 2;
+    }
+    return 0;
+}
+
+#endif  // __AMRWBDEC_TEST_ENVIRONMENT_H__
diff --git a/media/libstagefright/codecs/amrwb/test/AmrwbDecoderTest.cpp b/media/libstagefright/codecs/amrwb/test/AmrwbDecoderTest.cpp
new file mode 100644
index 0000000..2aad81b
--- /dev/null
+++ b/media/libstagefright/codecs/amrwb/test/AmrwbDecoderTest.cpp
@@ -0,0 +1,223 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT 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 "AmrwbDecoderTest"
+#define OUTPUT_FILE "/data/local/tmp/amrwbDecode.out"
+
+#include <utils/Log.h>
+
+#include <audio_utils/sndfile.h>
+#include <stdio.h>
+
+#include "pvamrwbdecoder.h"
+#include "pvamrwbdecoder_api.h"
+
+#include "AmrwbDecTestEnvironment.h"
+
+// Constants for AMR-WB.
+constexpr int32_t kInputBufferSize = 64;
+constexpr int32_t kSamplesPerFrame = 320;
+constexpr int32_t kBitsPerSample = 16;
+constexpr int32_t kSampleRate = 16000;
+constexpr int32_t kChannels = 1;
+constexpr int32_t kMaxSourceDataUnitSize = KAMRWB_NB_BITS_MAX * sizeof(int16_t);
+constexpr int32_t kOutputBufferSize = kSamplesPerFrame * kBitsPerSample / 8;
+const int32_t kFrameSizes[16] = {17, 23, 32, 36, 40, 46, 50, 58, 60, -1, -1, -1, -1, -1, -1, -1};
+constexpr int32_t kNumFrameReset = 150;
+
+constexpr int32_t kMaxCount = 10;
+
+static AmrwbDecTestEnvironment *gEnv = nullptr;
+
+class AmrwbDecoderTest : public ::testing::TestWithParam<string> {
+  public:
+    AmrwbDecoderTest() : mFpInput(nullptr) {}
+
+    ~AmrwbDecoderTest() {
+        if (mFpInput) {
+            fclose(mFpInput);
+            mFpInput = nullptr;
+        }
+    }
+
+    FILE *mFpInput;
+    int32_t DecodeFrames(int16_t *decoderCookie, void *decoderBuf, SNDFILE *outFileHandle,
+                         int32_t frameCount = INT32_MAX);
+    SNDFILE *openOutputFile(SF_INFO *sfInfo);
+};
+
+SNDFILE *AmrwbDecoderTest::openOutputFile(SF_INFO *sfInfo) {
+    memset(sfInfo, 0, sizeof(SF_INFO));
+    sfInfo->channels = kChannels;
+    sfInfo->format = SF_FORMAT_WAV | SF_FORMAT_PCM_16;
+    sfInfo->samplerate = kSampleRate;
+    SNDFILE *outFileHandle = sf_open(OUTPUT_FILE, SFM_WRITE, sfInfo);
+    return outFileHandle;
+}
+
+int32_t AmrwbDecoderTest::DecodeFrames(int16_t *decoderCookie, void *decoderBuf,
+                                       SNDFILE *outFileHandle, int32_t frameCount) {
+    uint8_t inputBuf[kInputBufferSize];
+    int16_t inputSampleBuf[kMaxSourceDataUnitSize];
+    int16_t outputBuf[kOutputBufferSize];
+
+    while (frameCount > 0) {
+        uint8_t modeByte;
+        int32_t bytesRead = fread(&modeByte, 1, 1, mFpInput);
+        if (bytesRead != 1) break;
+
+        int16 mode = ((modeByte >> 3) & 0x0f);
+        if (mode >= 9) {
+            // Produce silence for comfort noise, speech lost and no data.
+            int32_t outputBufferSize = kSamplesPerFrame * kBitsPerSample / 8;
+            memset(outputBuf, 0, outputBufferSize);
+        } else {
+            // Read rest of the frame.
+            int32_t frameSize = kFrameSizes[mode];
+            // AMR-WB file format cannot have mode 10, 11, 12 and 13.
+            if (frameSize < 0) {
+                ALOGE("Illegal frame mode");
+                return -1;
+            }
+            bytesRead = fread(inputBuf, 1, frameSize, mFpInput);
+            if (bytesRead != frameSize) break;
+
+            int16 frameMode = mode;
+            int16 frameType;
+            RX_State_wb rx_state;
+            mime_unsorting(inputBuf, inputSampleBuf, &frameType, &frameMode, 1, &rx_state);
+
+            int16_t numSamplesOutput;
+            pvDecoder_AmrWb(frameMode, inputSampleBuf, outputBuf, &numSamplesOutput, decoderBuf,
+                            frameType, decoderCookie);
+            if (numSamplesOutput != kSamplesPerFrame) {
+                ALOGE("Failed to decode the input file");
+                return -1;
+            }
+            for (int count = 0; count < kSamplesPerFrame; ++count) {
+                /* Delete the 2 LSBs (14-bit output) */
+                outputBuf[count] &= 0xfffc;
+            }
+        }
+        sf_writef_short(outFileHandle, outputBuf, kSamplesPerFrame / kChannels);
+        frameCount--;
+    }
+    return 0;
+}
+
+TEST_F(AmrwbDecoderTest, MultiCreateAmrwbDecoderTest) {
+    uint32_t memRequirements = pvDecoder_AmrWbMemRequirements();
+    void *decoderBuf = malloc(memRequirements);
+    ASSERT_NE(decoderBuf, nullptr)
+            << "Failed to allocate decoder memory of size " << memRequirements;
+
+    // Create AMR-WB decoder instance.
+    void *amrHandle = nullptr;
+    int16_t *decoderCookie;
+    for (int count = 0; count < kMaxCount; count++) {
+        pvDecoder_AmrWb_Init(&amrHandle, decoderBuf, &decoderCookie);
+        ASSERT_NE(amrHandle, nullptr) << "Failed to initialize decoder";
+        ALOGV("Decoder created successfully");
+    }
+    if (decoderBuf) {
+        free(decoderBuf);
+        decoderBuf = nullptr;
+    }
+}
+
+TEST_P(AmrwbDecoderTest, DecodeTest) {
+    uint32_t memRequirements = pvDecoder_AmrWbMemRequirements();
+    void *decoderBuf = malloc(memRequirements);
+    ASSERT_NE(decoderBuf, nullptr)
+            << "Failed to allocate decoder memory of size " << memRequirements;
+
+    void *amrHandle = nullptr;
+    int16_t *decoderCookie;
+    pvDecoder_AmrWb_Init(&amrHandle, decoderBuf, &decoderCookie);
+    ASSERT_NE(amrHandle, nullptr) << "Failed to initialize decoder";
+
+    string inputFile = gEnv->getRes() + GetParam();
+    mFpInput = fopen(inputFile.c_str(), "rb");
+    ASSERT_NE(mFpInput, nullptr) << "Error opening input file " << inputFile;
+
+    // Open the output file.
+    SF_INFO sfInfo;
+    SNDFILE *outFileHandle = openOutputFile(&sfInfo);
+    ASSERT_NE(outFileHandle, nullptr) << "Error opening output file for writing decoded output";
+
+    int32_t decoderErr = DecodeFrames(decoderCookie, decoderBuf, outFileHandle);
+    ASSERT_EQ(decoderErr, 0) << "DecodeFrames returned error";
+
+    sf_close(outFileHandle);
+    if (decoderBuf) {
+        free(decoderBuf);
+        decoderBuf = nullptr;
+    }
+}
+
+TEST_P(AmrwbDecoderTest, ResetDecoderTest) {
+    uint32_t memRequirements = pvDecoder_AmrWbMemRequirements();
+    void *decoderBuf = malloc(memRequirements);
+    ASSERT_NE(decoderBuf, nullptr)
+            << "Failed to allocate decoder memory of size " << memRequirements;
+
+    void *amrHandle = nullptr;
+    int16_t *decoderCookie;
+    pvDecoder_AmrWb_Init(&amrHandle, decoderBuf, &decoderCookie);
+    ASSERT_NE(amrHandle, nullptr) << "Failed to initialize decoder";
+
+    string inputFile = gEnv->getRes() + GetParam();
+    mFpInput = fopen(inputFile.c_str(), "rb");
+    ASSERT_NE(mFpInput, nullptr) << "Error opening input file " << inputFile;
+
+    // Open the output file.
+    SF_INFO sfInfo;
+    SNDFILE *outFileHandle = openOutputFile(&sfInfo);
+    ASSERT_NE(outFileHandle, nullptr) << "Error opening output file for writing decoded output";
+
+    // Decode 150 frames first
+    int32_t decoderErr = DecodeFrames(decoderCookie, decoderBuf, outFileHandle, kNumFrameReset);
+    ASSERT_EQ(decoderErr, 0) << "DecodeFrames returned error";
+
+    // Reset Decoder
+    pvDecoder_AmrWb_Reset(decoderBuf, 1);
+
+    // Start decoding again
+    decoderErr = DecodeFrames(decoderCookie, decoderBuf, outFileHandle);
+    ASSERT_EQ(decoderErr, 0) << "DecodeFrames returned error";
+
+    sf_close(outFileHandle);
+    if (decoderBuf) {
+        free(decoderBuf);
+    }
+}
+
+INSTANTIATE_TEST_SUITE_P(AmrwbDecoderTestAll, AmrwbDecoderTest,
+                         ::testing::Values(("bbb_amrwb_1ch_14kbps_16000hz.amrwb"),
+                                           ("bbb_16000hz_1ch_9kbps_amrwb_30sec.amrwb")));
+
+int main(int argc, char **argv) {
+    gEnv = new AmrwbDecTestEnvironment();
+    ::testing::AddGlobalTestEnvironment(gEnv);
+    ::testing::InitGoogleTest(&argc, argv);
+    int status = gEnv->initFromOptions(argc, argv);
+    if (status == 0) {
+        status = RUN_ALL_TESTS();
+        ALOGV("Test result = %d\n", status);
+    }
+    return status;
+}
diff --git a/media/libstagefright/codecs/amrwb/test/Android.bp b/media/libstagefright/codecs/amrwb/test/Android.bp
new file mode 100644
index 0000000..968215a
--- /dev/null
+++ b/media/libstagefright/codecs/amrwb/test/Android.bp
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+cc_test {
+    name: "AmrwbDecoderTest",
+    gtest: true,
+
+    srcs: [
+        "AmrwbDecoderTest.cpp",
+    ],
+
+    static_libs: [
+        "libstagefright_amrwbdec",
+        "libsndfile",
+        "libaudioutils",
+    ],
+
+    shared_libs: [
+        "liblog",
+    ],
+
+    cflags: [
+        "-Werror",
+        "-Wall",
+    ],
+
+    sanitize: {
+        cfi: true,
+        misc_undefined: [
+            "unsigned-integer-overflow",
+            "signed-integer-overflow",
+        ],
+    },
+}
diff --git a/media/libstagefright/codecs/amrwb/test/README.md b/media/libstagefright/codecs/amrwb/test/README.md
new file mode 100644
index 0000000..502a20d
--- /dev/null
+++ b/media/libstagefright/codecs/amrwb/test/README.md
@@ -0,0 +1,34 @@
+## Media Testing ##
+---
+#### AMR-WB Decoder :
+The Amr-Wb Decoder Test Suite validates the amrwb decoder available in libstagefright.
+
+Run the following steps to build the test suite:
+```
+m AmrwbDecoderTest
+```
+
+The 32-bit binaries will be created in the following path : ${OUT}/data/nativetest/
+
+The 64-bit binaries will be created in the following path : ${OUT}/data/nativetest64/
+
+To test 64-bit binary push binaries from nativetest64.
+```
+adb push ${OUT}/data/nativetest64/AmrwbDecoderTest/AmrwbDecoderTest /data/local/tmp/
+```
+
+To test 32-bit binary push binaries from nativetest.
+```
+adb push ${OUT}/data/nativetest/AmrwbDecoderTest/AmrwbDecoderTest /data/local/tmp/
+```
+
+The resource file for the tests is taken from [here](https://drive.google.com/drive/folders/13cM4tAaVFrmr-zGFqaAzFBbKs75pnm9b). Push these files into device for testing.
+Download amr-wb folder and push all the files in this folder to /data/local/tmp/ on the device.
+```
+adb push amr-wb/. /data/local/tmp/
+```
+
+usage: AmrwbDecoderTest -P \<path_to_folder\>
+```
+adb shell /data/local/tmp/AmrwbDecoderTest -P /data/local/tmp/
+```
diff --git a/media/libstagefright/id3/test/Android.bp b/media/libstagefright/id3/test/Android.bp
new file mode 100644
index 0000000..9d26eec
--- /dev/null
+++ b/media/libstagefright/id3/test/Android.bp
@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+cc_test {
+    name: "ID3Test",
+    gtest: true,
+
+    srcs: ["ID3Test.cpp"],
+
+    static_libs: [
+        "libdatasource",
+        "libstagefright_id3",
+        "libstagefright",
+        "libstagefright_foundation",
+    ],
+
+    shared_libs: [
+        "libutils",
+        "liblog",
+        "libbinder",
+    ],
+
+    cflags: [
+        "-Werror",
+        "-Wall",
+    ],
+
+    sanitize: {
+        cfi: true,
+        misc_undefined: [
+            "unsigned-integer-overflow",
+            "signed-integer-overflow",
+        ],
+    },
+}
diff --git a/media/libstagefright/id3/test/ID3Test.cpp b/media/libstagefright/id3/test/ID3Test.cpp
new file mode 100644
index 0000000..a8f1470
--- /dev/null
+++ b/media/libstagefright/id3/test/ID3Test.cpp
@@ -0,0 +1,217 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT 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 "ID3Test"
+#include <utils/Log.h>
+
+#include <ctype.h>
+#include <string>
+#include <sys/stat.h>
+#include <datasource/FileSource.h>
+
+#include <media/stagefright/foundation/hexdump.h>
+#include <ID3.h>
+
+#include "ID3TestEnvironment.h"
+
+using namespace android;
+
+static ID3TestEnvironment *gEnv = nullptr;
+
+class ID3tagTest : public ::testing::TestWithParam<string> {};
+class ID3versionTest : public ::testing::TestWithParam<pair<string, int>> {};
+class ID3textTagTest : public ::testing::TestWithParam<pair<string, int>> {};
+class ID3albumArtTest : public ::testing::TestWithParam<pair<string, bool>> {};
+class ID3multiAlbumArtTest : public ::testing::TestWithParam<pair<string, int>> {};
+
+TEST_P(ID3tagTest, TagTest) {
+    string path = gEnv->getRes() + GetParam();
+    sp<FileSource> file = new FileSource(path.c_str());
+    ASSERT_EQ(file->initCheck(), (status_t)OK) << "File initialization failed! \n";
+    ID3 tag(file.get());
+    ASSERT_TRUE(tag.isValid()) << "No valid ID3 tag found for " << path.c_str() << "\n";
+
+    ID3::Iterator it(tag, nullptr);
+    while (!it.done()) {
+        String8 id;
+        it.getID(&id);
+        ASSERT_GT(id.length(), 0) << "No ID tag found! \n";
+        ALOGV("Found ID tag: %s\n", String8(id).c_str());
+        it.next();
+    }
+}
+
+TEST_P(ID3versionTest, VersionTest) {
+    int versionNumber = GetParam().second;
+    string path = gEnv->getRes() + GetParam().first;
+    sp<android::FileSource> file = new FileSource(path.c_str());
+    ASSERT_EQ(file->initCheck(), (status_t)OK) << "File initialization failed! \n";
+
+    ID3 tag(file.get());
+    ASSERT_TRUE(tag.isValid()) << "No valid ID3 tag found for " << path.c_str() << "\n";
+    ASSERT_TRUE(tag.version() >= versionNumber)
+            << "Expected version: " << tag.version() << " Found version: " << versionNumber;
+}
+
+TEST_P(ID3textTagTest, TextTagTest) {
+    int numTextFrames = GetParam().second;
+    string path = gEnv->getRes() + GetParam().first;
+    sp<android::FileSource> file = new FileSource(path.c_str());
+    ASSERT_EQ(file->initCheck(), (status_t)OK) << "File initialization failed! \n";
+
+    ID3 tag(file.get());
+    ASSERT_TRUE(tag.isValid()) << "No valid ID3 tag found for " << path.c_str() << "\n";
+    int countTextFrames = 0;
+    ID3::Iterator it(tag, nullptr);
+    while (!it.done()) {
+        String8 id;
+        it.getID(&id);
+        ASSERT_GT(id.length(), 0);
+        if (id[0] == 'T') {
+            String8 text;
+            countTextFrames++;
+            it.getString(&text);
+            ALOGV("Found text frame %s : %s \n", id.string(), text.string());
+        }
+        it.next();
+    }
+    ASSERT_EQ(countTextFrames, numTextFrames)
+            << "Expected " << numTextFrames << " text frames, found " << countTextFrames;
+}
+
+TEST_P(ID3albumArtTest, AlbumArtTest) {
+    bool albumArtPresent = GetParam().second;
+    string path = gEnv->getRes() + GetParam().first;
+    sp<android::FileSource> file = new FileSource(path.c_str());
+    ASSERT_EQ(file->initCheck(), (status_t)OK) << "File initialization failed! \n";
+
+    ID3 tag(file.get());
+    ASSERT_TRUE(tag.isValid()) << "No valid ID3 tag found for " << path.c_str() << "\n";
+    size_t dataSize;
+    String8 mime;
+    const void *data = tag.getAlbumArt(&dataSize, &mime);
+
+    if (albumArtPresent) {
+        if (data) {
+            ALOGV("Found album art: size = %zu mime = %s \n", dataSize, mime.string());
+        }
+        ASSERT_NE(data, nullptr) << "Expected album art, found none!" << path;
+    } else {
+        ASSERT_EQ(data, nullptr) << "Found album art when expected none!";
+    }
+#if (LOG_NDEBUG == 0)
+    hexdump(data, dataSize > 128 ? 128 : dataSize);
+#endif
+}
+
+TEST_P(ID3multiAlbumArtTest, MultiAlbumArtTest) {
+    int numAlbumArt = GetParam().second;
+    string path = gEnv->getRes() + GetParam().first;
+    sp<android::FileSource> file = new FileSource(path.c_str());
+    ASSERT_EQ(file->initCheck(), (status_t)OK) << "File initialization failed! \n";
+
+    ID3 tag(file.get());
+    ASSERT_TRUE(tag.isValid()) << "No valid ID3 tag found for " << path.c_str() << "\n";
+    int count = 0;
+    ID3::Iterator it(tag, nullptr);
+    while (!it.done()) {
+        String8 id;
+        it.getID(&id);
+        ASSERT_GT(id.length(), 0);
+        // Check if the tag is an "APIC/PIC" tag.
+        if (String8(id) == "APIC" || String8(id) == "PIC") {
+            count++;
+            size_t dataSize;
+            String8 mime;
+            const void *data = tag.getAlbumArt(&dataSize, &mime);
+            if (data) {
+                ALOGV("Found album art: size = %zu mime = %s \n", dataSize, mime.string());
+#if (LOG_NDEBUG == 0)
+                hexdump(data, dataSize > 128 ? 128 : dataSize);
+#endif
+            }
+            ASSERT_NE(data, nullptr) << "Expected album art, found none!" << path;
+        }
+        it.next();
+    }
+    ASSERT_EQ(count, numAlbumArt) << "Found " << count << " album arts, expected " << numAlbumArt
+                                  << " album arts! \n";
+}
+
+INSTANTIATE_TEST_SUITE_P(id3TestAll, ID3tagTest,
+                         ::testing::Values("bbb_44100hz_2ch_128kbps_mp3_30sec.mp3",
+                                           "bbb_44100hz_2ch_128kbps_mp3_30sec_1_image.mp3",
+                                           "bbb_44100hz_2ch_128kbps_mp3_30sec_2_image.mp3",
+                                           "bbb_44100hz_2ch_128kbps_mp3_5mins.mp3",
+                                           "bbb_44100hz_2ch_128kbps_mp3_5mins_1_image.mp3",
+                                           "bbb_44100hz_2ch_128kbps_mp3_5mins_2_image.mp3",
+                                           "bbb_44100hz_2ch_128kbps_mp3_5mins_largeSize.mp3",
+                                           "bbb_44100hz_2ch_128kbps_mp3_30sec_moreTextFrames.mp3"));
+
+INSTANTIATE_TEST_SUITE_P(
+        id3TestAll, ID3versionTest,
+        ::testing::Values(make_pair("bbb_44100hz_2ch_128kbps_mp3_30sec.mp3", 4),
+                          make_pair("bbb_44100hz_2ch_128kbps_mp3_30sec_1_image.mp3", 4),
+                          make_pair("bbb_44100hz_2ch_128kbps_mp3_30sec_2_image.mp3", 4),
+                          make_pair("bbb_44100hz_2ch_128kbps_mp3_5mins.mp3", 4),
+                          make_pair("bbb_44100hz_2ch_128kbps_mp3_5mins_1_image.mp3", 4),
+                          make_pair("bbb_44100hz_2ch_128kbps_mp3_5mins_2_image.mp3", 4),
+                          make_pair("bbb_44100hz_2ch_128kbps_mp3_5mins_largeSize.mp3", 4),
+                          make_pair("bbb_44100hz_2ch_128kbps_mp3_30sec_moreTextFrames.mp3", 4)));
+
+INSTANTIATE_TEST_SUITE_P(
+        id3TestAll, ID3textTagTest,
+        ::testing::Values(make_pair("bbb_44100hz_2ch_128kbps_mp3_30sec.mp3", 1),
+                          make_pair("bbb_44100hz_2ch_128kbps_mp3_30sec_1_image.mp3", 1),
+                          make_pair("bbb_44100hz_2ch_128kbps_mp3_30sec_2_image.mp3", 1),
+                          make_pair("bbb_44100hz_2ch_128kbps_mp3_5mins.mp3", 1),
+                          make_pair("bbb_44100hz_2ch_128kbps_mp3_5mins_1_image.mp3", 1),
+                          make_pair("bbb_44100hz_2ch_128kbps_mp3_5mins_2_image.mp3", 1),
+                          make_pair("bbb_44100hz_2ch_128kbps_mp3_5mins_largeSize.mp3", 1),
+                          make_pair("bbb_44100hz_2ch_128kbps_mp3_30sec_moreTextFrames.mp3", 5)));
+
+INSTANTIATE_TEST_SUITE_P(
+        id3TestAll, ID3albumArtTest,
+        ::testing::Values(make_pair("bbb_44100hz_2ch_128kbps_mp3_30sec.mp3", false),
+                          make_pair("bbb_44100hz_2ch_128kbps_mp3_30sec_1_image.mp3", true),
+                          make_pair("bbb_44100hz_2ch_128kbps_mp3_30sec_2_image.mp3", true),
+                          make_pair("bbb_44100hz_2ch_128kbps_mp3_5mins.mp3", false),
+                          make_pair("bbb_44100hz_2ch_128kbps_mp3_5mins_1_image.mp3", true),
+                          make_pair("bbb_44100hz_2ch_128kbps_mp3_5mins_2_image.mp3", true),
+                          make_pair("bbb_44100hz_2ch_128kbps_mp3_5mins_largeSize.mp3", true)));
+
+INSTANTIATE_TEST_SUITE_P(
+        id3TestAll, ID3multiAlbumArtTest,
+        ::testing::Values(make_pair("bbb_44100hz_2ch_128kbps_mp3_30sec.mp3", 0),
+                          make_pair("bbb_44100hz_2ch_128kbps_mp3_5mins.mp3", 0),
+                          make_pair("bbb_44100hz_2ch_128kbps_mp3_30sec_1_image.mp3", 1),
+                          make_pair("bbb_44100hz_2ch_128kbps_mp3_5mins_1_image.mp3", 1),
+                          make_pair("bbb_44100hz_2ch_128kbps_mp3_30sec_2_image.mp3", 2),
+                          make_pair("bbb_44100hz_2ch_128kbps_mp3_5mins_2_image.mp3", 2),
+                          make_pair("bbb_44100hz_2ch_128kbps_mp3_5mins_largeSize.mp3", 3)));
+
+int main(int argc, char **argv) {
+    gEnv = new ID3TestEnvironment();
+    ::testing::AddGlobalTestEnvironment(gEnv);
+    ::testing::InitGoogleTest(&argc, argv);
+    int status = gEnv->initFromOptions(argc, argv);
+    if (status == 0) {
+        status = RUN_ALL_TESTS();
+        ALOGI("ID3 Test result = %d\n", status);
+    }
+    return status;
+}
diff --git a/media/libstagefright/id3/test/ID3TestEnvironment.h b/media/libstagefright/id3/test/ID3TestEnvironment.h
new file mode 100644
index 0000000..2229718
--- /dev/null
+++ b/media/libstagefright/id3/test/ID3TestEnvironment.h
@@ -0,0 +1,73 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef __ID3_TEST_ENVIRONMENT_H__
+#define __ID3_TEST_ENVIRONMENT_H__
+
+#include <gtest/gtest.h>
+
+#include <getopt.h>
+
+using namespace std;
+
+class ID3TestEnvironment : public::testing::Environment {
+  public:
+    ID3TestEnvironment() : res("/data/local/tmp/") {}
+
+    // Parses the command line arguments
+    int initFromOptions(int argc, char **argv);
+
+    void setRes(const char *_res) { res = _res; }
+
+    const string getRes() const { return res; }
+
+  private:
+    string res;
+};
+
+int ID3TestEnvironment::initFromOptions(int argc, char **argv) {
+    static struct option options[] = {{"path", required_argument, 0, 'P'}, {0, 0, 0, 0}};
+
+    while (true) {
+        int index = 0;
+        int c = getopt_long(argc, argv, "P:", options, &index);
+        if (c == -1) {
+            break;
+        }
+
+        switch (c) {
+            case 'P': {
+                setRes(optarg);
+                break;
+            }
+            default:
+                break;
+        }
+    }
+
+    if (optind < argc) {
+        fprintf(stderr,
+                "unrecognized option: %s\n\n"
+                "usage: %s <gtest options> <test options>\n\n"
+                "test options are:\n\n"
+                "-P, --path: Resource files directory location\n",
+                argv[optind ?: 1], argv[0]);
+        return 2;
+    }
+    return 0;
+}
+
+#endif  // __ID3_TEST_ENVIRONMENT_H__
diff --git a/media/libstagefright/id3/test/README.md b/media/libstagefright/id3/test/README.md
new file mode 100644
index 0000000..72f730c
--- /dev/null
+++ b/media/libstagefright/id3/test/README.md
@@ -0,0 +1,34 @@
+## Media Testing ##
+---
+#### ID3 Test :
+The ID3 Test Suite validates the ID3 parser available in libstagefright.
+
+Run the following command in the id3 folder to build the test suite:
+```
+m ID3Test
+```
+
+The 32-bit binaries will be created in the following path : ${OUT}/data/nativetest/
+
+The 64-bit binaries will be created in the following path : ${OUT}/data/nativetest64/
+
+To test 64-bit binary push binaries from nativetest64.
+```
+adb push ${OUT}/data/nativetest64/ID3Test/ID3Test /data/local/tmp/
+```
+
+To test 32-bit binary push binaries from nativetest.
+```
+adb push ${OUT}/data/nativetest/ID3Test/ID3Test /data/local/tmp/
+```
+
+The resource file for the tests is taken from [here](https://drive.google.com/drive/folders/1pt5HFVSysbqfyqY1sVJ9MTupZKCdqjYZ). Push these files into device for testing.
+Download ID3 folder and push all the files in this folder to /data/local/tmp/ID3 on the device.
+```
+adb push ID3/. /data/local/tmp/ID3
+```
+
+usage: ID3Test -P \<path_to_folder\>
+```
+adb shell /data/local/tmp/ID3Test -P /data/local/tmp/ID3/
+```
diff --git a/media/libstagefright/include/FrameDecoder.h b/media/libstagefright/include/FrameDecoder.h
index 353c957..19ae0e3 100644
--- a/media/libstagefright/include/FrameDecoder.h
+++ b/media/libstagefright/include/FrameDecoder.h
@@ -22,7 +22,7 @@
 
 #include <media/stagefright/foundation/AString.h>
 #include <media/stagefright/foundation/ABase.h>
-#include <media/MediaSource.h>
+#include <media/stagefright/MediaSource.h>
 #include <media/openmax/OMX_Video.h>
 #include <ui/GraphicTypes.h>
 
diff --git a/media/libstagefright/include/media/stagefright/AudioSource.h b/media/libstagefright/include/media/stagefright/AudioSource.h
index af04dad..451aa57 100644
--- a/media/libstagefright/include/media/stagefright/AudioSource.h
+++ b/media/libstagefright/include/media/stagefright/AudioSource.h
@@ -20,7 +20,7 @@
 
 #include <media/AudioRecord.h>
 #include <media/AudioSystem.h>
-#include <media/MediaSource.h>
+#include <media/stagefright/MediaSource.h>
 #include <media/MicrophoneInfo.h>
 #include <media/stagefright/MediaBuffer.h>
 #include <utils/List.h>
@@ -37,7 +37,7 @@
     // Note that the "channels" parameter _is_ the number of channels,
     // _not_ a bitmask of audio_channels_t constants.
     AudioSource(
-            audio_source_t inputSource,
+            const audio_attributes_t *attr,
             const String16 &opPackageName,
             uint32_t sampleRate,
             uint32_t channels,
diff --git a/media/libstagefright/include/media/stagefright/CallbackMediaSource.h b/media/libstagefright/include/media/stagefright/CallbackMediaSource.h
index 33453fa..d2adbb9 100644
--- a/media/libstagefright/include/media/stagefright/CallbackMediaSource.h
+++ b/media/libstagefright/include/media/stagefright/CallbackMediaSource.h
@@ -17,7 +17,7 @@
 #ifndef CALLBACK_MEDIA_SOURCE_H_
 #define CALLBACK_MEDIA_SOURCE_H_
 
-#include <media/MediaSource.h>
+#include <media/stagefright/MediaSource.h>
 #include <media/stagefright/foundation/ABase.h>
 
 namespace android {
diff --git a/media/libstagefright/include/media/stagefright/CameraSource.h b/media/libstagefright/include/media/stagefright/CameraSource.h
index 3037b72..6f0d3b5 100644
--- a/media/libstagefright/include/media/stagefright/CameraSource.h
+++ b/media/libstagefright/include/media/stagefright/CameraSource.h
@@ -19,7 +19,7 @@
 #define CAMERA_SOURCE_H_
 
 #include <deque>
-#include <media/MediaSource.h>
+#include <media/stagefright/MediaSource.h>
 #include <media/stagefright/MediaBuffer.h>
 #include <camera/android/hardware/ICamera.h>
 #include <camera/ICameraRecordingProxy.h>
diff --git a/media/libstagefright/include/media/stagefright/InterfaceUtils.h b/media/libstagefright/include/media/stagefright/InterfaceUtils.h
index 671f2ff..92ef543 100644
--- a/media/libstagefright/include/media/stagefright/InterfaceUtils.h
+++ b/media/libstagefright/include/media/stagefright/InterfaceUtils.h
@@ -19,7 +19,7 @@
 
 #include <utils/RefBase.h>
 #include <media/stagefright/RemoteMediaExtractor.h>
-#include <media/MediaSource.h>
+#include <media/stagefright/MediaSource.h>
 #include <android/IMediaExtractor.h>
 #include <media/IMediaSource.h>
 
diff --git a/media/libstagefright/include/media/stagefright/JPEGSource.h b/media/libstagefright/include/media/stagefright/JPEGSource.h
index 8ab3d11..53cb344 100644
--- a/media/libstagefright/include/media/stagefright/JPEGSource.h
+++ b/media/libstagefright/include/media/stagefright/JPEGSource.h
@@ -18,7 +18,7 @@
 
 #define JPEG_SOURCE_H_
 
-#include <media/MediaSource.h>
+#include <media/stagefright/MediaSource.h>
 
 namespace android {
 
diff --git a/media/libstagefright/include/media/stagefright/MPEG4Writer.h b/media/libstagefright/include/media/stagefright/MPEG4Writer.h
index 6f19023..0564835 100644
--- a/media/libstagefright/include/media/stagefright/MPEG4Writer.h
+++ b/media/libstagefright/include/media/stagefright/MPEG4Writer.h
@@ -25,6 +25,7 @@
 #include <utils/threads.h>
 #include <media/stagefright/foundation/AHandlerReflector.h>
 #include <media/stagefright/foundation/ALooper.h>
+#include <mutex>
 
 namespace android {
 
@@ -58,6 +59,10 @@
     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);
+    // Write to file system by calling ::write() or post error message to looper on failure.
+    void writeOrPostError(int fd, const void *buf, size_t count);
+    // Seek in the file by calling ::lseek64() or post error message to looper on failure.
+    void seekOrPostError(int fd, off64_t offset, int whence);
     void endBox();
     uint32_t interleaveDuration() const { return mInterleaveDurationUs; }
     status_t setInterleaveDuration(uint32_t duration);
@@ -80,6 +85,8 @@
 
     enum {
         kWhatSwitch                          = 'swch',
+        kWhatHandleIOError                   = 'ioer',
+        kWhatHandleFallocateError            = 'faer'
     };
 
     int  mFd;
@@ -88,14 +95,15 @@
     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;
+    off64_t mPreAllocateFileEndOffset;  //End of file offset during preallocation.
+    off64_t mMdatOffset;
+    off64_t mMdatEndOffset;  // End offset of mdat atom.
     uint8_t *mInMemoryCache;
     off64_t mInMemoryCacheOffset;
     off64_t mInMemoryCacheSize;
@@ -106,17 +114,24 @@
     uint32_t mInterleaveDurationUs;
     int32_t mTimeScale;
     int64_t mStartTimestampUs;
-    int32_t mStartTimeOffsetBFramesUs; // Start time offset when B Frames are present
+    int32_t mStartTimeOffsetBFramesUs;  // Longest offset needed for reordering tracks with B Frames
     int mLatitudex10000;
     int mLongitudex10000;
     bool mAreGeoTagsAvailable;
     int32_t mStartTimeOffsetMs;
     bool mSwitchPending;
+    bool mWriteSeekErr;
+    bool mFallocateErr;
+    bool mPreAllocationEnabled;
 
     sp<ALooper> mLooper;
     sp<AHandlerReflector<MPEG4Writer> > mReflector;
 
     Mutex mLock;
+    std::mutex mResetMutex;
+    std::mutex mFallocMutex;
+    bool mPreAllocFirstTime; // Pre-allocate space for file and track headers only once per file.
+    uint64_t mPrevAllTracksTotalMetaDataSizeEstimate;
 
     List<Track *> mTracks;
 
@@ -200,6 +215,7 @@
     } ItemProperty;
 
     bool mHasFileLevelMeta;
+    uint64_t mFileLevelMetaDataSize;
     bool mHasMoovBox;
     uint32_t mPrimaryItemId;
     uint32_t mAssociationEntryCount;
@@ -210,9 +226,11 @@
 
     // Writer thread handling
     status_t startWriterThread();
-    void stopWriterThread();
+    status_t stopWriterThread();
     static void *ThreadWrapper(void *me);
     void threadFunc();
+    void setupAndStartLooper();
+    void stopAndReleaseLooper();
 
     // Buffer a single chunk to be written out later.
     void bufferChunk(const Chunk& chunk);
@@ -263,7 +281,6 @@
     void addRefs_l(uint16_t itemId, const ItemRefs &);
 
     bool exceedsFileSizeLimit();
-    bool use32BitFileOffset() const;
     bool exceedsFileDurationLimit();
     bool approachingFileSizeLimit();
     bool isFileStreamable() const;
@@ -284,6 +301,16 @@
     void writeIlst();
     void writeMoovLevelMetaBox();
 
+    /*
+     * Allocate space needed for MOOV atom in advance and maintain just enough before write
+     * of any data.  Stop writing and save MOOV atom if there was any error.
+     */
+    bool preAllocate(uint64_t wantSize);
+    /*
+     * Truncate file as per the size used for meta data and actual data in a session.
+     */
+    bool truncatePreAllocation();
+
     // HEIF writing
     void writeIlocBox();
     void writeInfeBox(uint16_t itemId, const char *type, uint32_t flags);
diff --git a/media/libstagefright/include/media/stagefright/MediaAdapter.h b/media/libstagefright/include/media/stagefright/MediaAdapter.h
index 589c827..177a9e9 100644
--- a/media/libstagefright/include/media/stagefright/MediaAdapter.h
+++ b/media/libstagefright/include/media/stagefright/MediaAdapter.h
@@ -17,7 +17,7 @@
 #ifndef MEDIA_ADAPTER_H
 #define MEDIA_ADAPTER_H
 
-#include <media/MediaSource.h>
+#include <media/stagefright/MediaSource.h>
 #include <media/stagefright/foundation/ABase.h>
 #include <media/stagefright/MediaBuffer.h>
 #include <media/stagefright/MetaData.h>
diff --git a/media/libstagefright/include/media/stagefright/MediaCodec.h b/media/libstagefright/include/media/stagefright/MediaCodec.h
index 78cb01c..5c5c23a 100644
--- a/media/libstagefright/include/media/stagefright/MediaCodec.h
+++ b/media/libstagefright/include/media/stagefright/MediaCodec.h
@@ -313,6 +313,7 @@
     void updateMediametrics();
     void flushMediametrics();
     void updateEphemeralMediametrics(mediametrics_handle_t item);
+    void updateLowLatency(const sp<AMessage> &msg);
 
     sp<AMessage> mOutputFormat;
     sp<AMessage> mInputFormat;
@@ -440,6 +441,12 @@
     std::deque<BufferFlightTiming_t> mBuffersInFlight;
     Mutex mLatencyLock;
     int64_t mLatencyUnknown;    // buffers for which we couldn't calculate latency
+    int64_t mNumLowLatencyEnables;  // how many times low latency mode is enabled
+    int64_t mNumLowLatencyDisables;  // how many times low latency mode is disabled
+    bool mIsLowLatencyModeOn;  // is low latency mode on currently
+    int64_t mIndexOfFirstFrameWhenLowLatencyOn;  // index of the first frame queued
+                                                 // when low latency is on
+    int64_t mInputBufferCounter;  // number of input buffers queued since last reset/flush
 
     sp<BatteryChecker> mBatteryChecker;
 
diff --git a/media/libstagefright/include/media/stagefright/MediaCodecSource.h b/media/libstagefright/include/media/stagefright/MediaCodecSource.h
index a68cc19..2f98af1 100644
--- a/media/libstagefright/include/media/stagefright/MediaCodecSource.h
+++ b/media/libstagefright/include/media/stagefright/MediaCodecSource.h
@@ -17,7 +17,7 @@
 #ifndef MediaCodecSource_H_
 #define MediaCodecSource_H_
 
-#include <media/MediaSource.h>
+#include <media/stagefright/MediaSource.h>
 #include <media/stagefright/foundation/ABase.h>
 #include <media/stagefright/foundation/AHandlerReflector.h>
 #include <media/stagefright/foundation/Mutexed.h>
diff --git a/media/libstagefright/include/media/stagefright/MediaMuxer.h b/media/libstagefright/include/media/stagefright/MediaMuxer.h
index 69d6cde..98df9b5 100644
--- a/media/libstagefright/include/media/stagefright/MediaMuxer.h
+++ b/media/libstagefright/include/media/stagefright/MediaMuxer.h
@@ -117,21 +117,24 @@
     status_t writeSampleData(const sp<ABuffer> &buffer, size_t trackIndex,
                              int64_t timeUs, uint32_t flags) ;
 
+    void notify(int msg, int ext1, int ext2);
+
 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
+        STOPPED,
+        ERROR
     };
     State mState;
+    status_t mError;
 
     DISALLOW_EVIL_CONSTRUCTORS(MediaMuxer);
 };
diff --git a/media/libstagefright/include/media/stagefright/MediaWriter.h b/media/libstagefright/include/media/stagefright/MediaWriter.h
index 972ae1d..08e54b3 100644
--- a/media/libstagefright/include/media/stagefright/MediaWriter.h
+++ b/media/libstagefright/include/media/stagefright/MediaWriter.h
@@ -19,8 +19,9 @@
 #define MEDIA_WRITER_H_
 
 #include <utils/RefBase.h>
-#include <media/MediaSource.h>
+#include <media/stagefright/MediaSource.h>
 #include <media/IMediaRecorderClient.h>
+#include <media/stagefright/MediaMuxer.h>
 
 namespace android {
 
@@ -36,7 +37,7 @@
     virtual status_t stop() = 0;
     virtual status_t pause() = 0;
     virtual status_t setCaptureRate(float /* captureFps */) {
-        ALOGW("setCaptureRate unsupported");
+        ALOG(LOG_WARN, "MediaWriter", "setCaptureRate unsupported");
         return ERROR_UNSUPPORTED;
     }
 
@@ -45,6 +46,7 @@
     virtual void setListener(const sp<IMediaRecorderClient>& listener) {
         mListener = listener;
     }
+    virtual void setMuxerListener(const wp<MediaMuxer>& muxer) { mMuxer = muxer; }
 
     virtual status_t dump(int /*fd*/, const Vector<String16>& /*args*/) {
         return OK;
@@ -59,11 +61,17 @@
     int64_t mMaxFileSizeLimitBytes;
     int64_t mMaxFileDurationLimitUs;
     sp<IMediaRecorderClient> mListener;
+    wp<MediaMuxer> mMuxer;
 
     void notify(int msg, int ext1, int ext2) {
-        if (mListener != NULL) {
+        ALOG(LOG_VERBOSE, "MediaWriter", "notify msg:%d, ext1:%d, ext2:%d", msg, ext1, ext2);
+        if (mListener != nullptr) {
             mListener->notify(msg, ext1, ext2);
         }
+        sp<MediaMuxer> muxer = mMuxer.promote();
+        if (muxer != nullptr) {
+            muxer->notify(msg, ext1, ext2);
+        }
     }
 private:
     MediaWriter(const MediaWriter &);
diff --git a/media/libstagefright/include/media/stagefright/MetaDataBase.h b/media/libstagefright/include/media/stagefright/MetaDataBase.h
index e17093a..b9cd18a 100644
--- a/media/libstagefright/include/media/stagefright/MetaDataBase.h
+++ b/media/libstagefright/include/media/stagefright/MetaDataBase.h
@@ -113,8 +113,6 @@
     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
diff --git a/media/libstagefright/include/media/stagefright/NuMediaExtractor.h b/media/libstagefright/include/media/stagefright/NuMediaExtractor.h
index 98e4b22..227cead 100644
--- a/media/libstagefright/include/media/stagefright/NuMediaExtractor.h
+++ b/media/libstagefright/include/media/stagefright/NuMediaExtractor.h
@@ -22,7 +22,7 @@
 #include <media/stagefright/foundation/ABase.h>
 #include <media/stagefright/foundation/AudioPresentationInfo.h>
 #include <android/IMediaExtractor.h>
-#include <media/MediaSource.h>
+#include <media/stagefright/MediaSource.h>
 #include <utils/Errors.h>
 #include <utils/KeyedVector.h>
 #include <utils/RefBase.h>
diff --git a/media/libstagefright/include/media/stagefright/RemoteMediaExtractor.h b/media/libstagefright/include/media/stagefright/RemoteMediaExtractor.h
index 2bf5a8b..e33e303 100644
--- a/media/libstagefright/include/media/stagefright/RemoteMediaExtractor.h
+++ b/media/libstagefright/include/media/stagefright/RemoteMediaExtractor.h
@@ -18,12 +18,12 @@
 #define REMOTE_MEDIA_EXTRACTOR_H_
 
 #include <android/IMediaExtractor.h>
+#include <media/MediaMetricsItem.h>
 #include <media/stagefright/MediaExtractor.h>
 #include <media/stagefright/foundation/ABase.h>
 
 namespace android {
 
-class MediaAnalyticsItem;
 
 // IMediaExtractor wrapper to the MediaExtractor.
 class RemoteMediaExtractor : public BnMediaExtractor {
@@ -48,7 +48,7 @@
     sp<DataSource> mSource;
     sp<RefBase> mExtractorPlugin;
 
-    MediaAnalyticsItem *mAnalyticsItem;
+    mediametrics::Item *mMetricsItem;
 
     explicit RemoteMediaExtractor(
             MediaExtractor *extractor,
diff --git a/media/libstagefright/include/media/stagefright/RemoteMediaSource.h b/media/libstagefright/include/media/stagefright/RemoteMediaSource.h
index 03d3869..2cd23f0 100644
--- a/media/libstagefright/include/media/stagefright/RemoteMediaSource.h
+++ b/media/libstagefright/include/media/stagefright/RemoteMediaSource.h
@@ -18,7 +18,7 @@
 #define REMOTE_MEDIA_SOURCE_H_
 
 #include <media/IMediaSource.h>
-#include <media/MediaSource.h>
+#include <media/stagefright/MediaSource.h>
 #include <media/stagefright/foundation/ABase.h>
 
 namespace android {
diff --git a/media/libstagefright/include/media/stagefright/SimpleDecodingSource.h b/media/libstagefright/include/media/stagefright/SimpleDecodingSource.h
index 23defb4..a97ae23 100644
--- a/media/libstagefright/include/media/stagefright/SimpleDecodingSource.h
+++ b/media/libstagefright/include/media/stagefright/SimpleDecodingSource.h
@@ -17,7 +17,7 @@
 #ifndef SIMPLE_DECODING_SOURCE_H_
 #define SIMPLE_DECODING_SOURCE_H_
 
-#include <media/MediaSource.h>
+#include <media/stagefright/MediaSource.h>
 #include <media/stagefright/foundation/AString.h>
 #include <media/stagefright/foundation/Mutexed.h>
 
diff --git a/media/libstagefright/mpeg2ts/ATSParser.h b/media/libstagefright/mpeg2ts/ATSParser.h
index 0ff2d7e..49578d3 100644
--- a/media/libstagefright/mpeg2ts/ATSParser.h
+++ b/media/libstagefright/mpeg2ts/ATSParser.h
@@ -20,7 +20,7 @@
 
 #include <sys/types.h>
 
-#include <media/MediaSource.h>
+#include <media/stagefright/MediaSource.h>
 #include <media/stagefright/foundation/ABase.h>
 #include <media/stagefright/foundation/AMessage.h>
 #include <media/stagefright/foundation/AudioPresentationInfo.h>
diff --git a/media/libstagefright/mpeg2ts/AnotherPacketSource.h b/media/libstagefright/mpeg2ts/AnotherPacketSource.h
index f4a6acb..44fe2c8 100644
--- a/media/libstagefright/mpeg2ts/AnotherPacketSource.h
+++ b/media/libstagefright/mpeg2ts/AnotherPacketSource.h
@@ -18,7 +18,7 @@
 
 #define ANOTHER_PACKET_SOURCE_H_
 
-#include <media/MediaSource.h>
+#include <media/stagefright/MediaSource.h>
 #include <media/stagefright/foundation/ABase.h>
 #include <utils/threads.h>
 #include <utils/List.h>
diff --git a/media/libstagefright/omx/tests/OMXHarness.cpp b/media/libstagefright/omx/tests/OMXHarness.cpp
index 6848a83..7893148 100644
--- a/media/libstagefright/omx/tests/OMXHarness.cpp
+++ b/media/libstagefright/omx/tests/OMXHarness.cpp
@@ -30,7 +30,7 @@
 #include <datasource/DataSourceFactory.h>
 #include <media/DataSource.h>
 #include <media/IMediaHTTPService.h>
-#include <media/MediaSource.h>
+#include <media/stagefright/MediaSource.h>
 #include <media/OMXBuffer.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/ALooper.h>
diff --git a/media/libstagefright/rtsp/ARTPWriter.cpp b/media/libstagefright/rtsp/ARTPWriter.cpp
index 4f86773..58d6086 100644
--- a/media/libstagefright/rtsp/ARTPWriter.cpp
+++ b/media/libstagefright/rtsp/ARTPWriter.cpp
@@ -22,7 +22,7 @@
 
 #include <fcntl.h>
 
-#include <media/MediaSource.h>
+#include <media/stagefright/MediaSource.h>
 #include <media/stagefright/foundation/ABuffer.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/AMessage.h>
diff --git a/media/libstagefright/rtsp/VideoSource.h b/media/libstagefright/rtsp/VideoSource.h
index 4be9bf6..f29db57 100644
--- a/media/libstagefright/rtsp/VideoSource.h
+++ b/media/libstagefright/rtsp/VideoSource.h
@@ -18,7 +18,7 @@
 
 #define VIDEO_SOURCE_H_
 
-#include <media/MediaSource.h>
+#include <media/stagefright/MediaSource.h>
 #include <media/stagefright/MediaBufferGroup.h>
 #include <media/stagefright/MediaDefs.h>
 #include <media/stagefright/MetaData.h>
diff --git a/media/libstagefright/webm/WebmFrameThread.h b/media/libstagefright/webm/WebmFrameThread.h
index 2dde20a..5aa6feb 100644
--- a/media/libstagefright/webm/WebmFrameThread.h
+++ b/media/libstagefright/webm/WebmFrameThread.h
@@ -21,7 +21,7 @@
 #include "LinkedBlockingQueue.h"
 
 #include <datasource/FileSource.h>
-#include <media/MediaSource.h>
+#include <media/stagefright/MediaSource.h>
 
 #include <utils/List.h>
 #include <utils/Errors.h>
diff --git a/media/libstagefright/webm/WebmWriter.h b/media/libstagefright/webm/WebmWriter.h
index ffe4c79..ed5bc4c 100644
--- a/media/libstagefright/webm/WebmWriter.h
+++ b/media/libstagefright/webm/WebmWriter.h
@@ -21,7 +21,7 @@
 #include "WebmFrameThread.h"
 #include "LinkedBlockingQueue.h"
 
-#include <media/MediaSource.h>
+#include <media/stagefright/MediaSource.h>
 #include <media/stagefright/MediaWriter.h>
 
 #include <utils/Errors.h>
diff --git a/media/mtp/IMtpHandle.h b/media/mtp/IMtpHandle.h
index fd14b18..0435e82 100644
--- a/media/mtp/IMtpHandle.h
+++ b/media/mtp/IMtpHandle.h
@@ -16,7 +16,7 @@
 #ifndef _IMTP_HANDLE_H
 #define _IMTP_HANDLE_H
 
-#include <linux/usb/f_mtp.h>
+#include "f_mtp.h"
 
 namespace android {
 
diff --git a/media/mtp/MtpServer.cpp b/media/mtp/MtpServer.cpp
index af69a10..fdf51b1 100644
--- a/media/mtp/MtpServer.cpp
+++ b/media/mtp/MtpServer.cpp
@@ -84,8 +84,8 @@
 //    MTP_OPERATION_SET_OBJECT_PROP_LIST,
 //    MTP_OPERATION_GET_INTERDEPENDENT_PROP_DESC,
 //    MTP_OPERATION_SEND_OBJECT_PROP_LIST,
-    MTP_OPERATION_GET_OBJECT_REFERENCES,
-    MTP_OPERATION_SET_OBJECT_REFERENCES,
+//    MTP_OPERATION_GET_OBJECT_REFERENCES,
+//    MTP_OPERATION_SET_OBJECT_REFERENCES,
 //    MTP_OPERATION_SKIP,
     // Android extension for direct file IO
     MTP_OPERATION_GET_PARTIAL_OBJECT_64,
diff --git a/media/mtp/f_mtp.h b/media/mtp/f_mtp.h
new file mode 100644
index 0000000..22ec771
--- /dev/null
+++ b/media/mtp/f_mtp.h
@@ -0,0 +1,43 @@
+/****************************************************************************
+ ****************************************************************************
+ ***
+ ***   This header was automatically generated from a Linux kernel header
+ ***   of the same name, to make information necessary for userspace to
+ ***   call into the kernel available to libc.  It contains only constants,
+ ***   structures, and macros generated from the original header, and thus,
+ ***   contains no copyrightable information.
+ ***
+ ***   To edit the content of this header, modify the corresponding
+ ***   source file (e.g. under external/kernel-headers/original/) then
+ ***   run bionic/libc/kernel/tools/update_all.py
+ ***
+ ***   Any manual change here will be lost the next time this script will
+ ***   be run. You've been warned!
+ ***
+ ****************************************************************************
+ ****************************************************************************/
+#ifndef _UAPI_LINUX_USB_F_MTP_H
+#define _UAPI_LINUX_USB_F_MTP_H
+#include <linux/ioctl.h>
+#include <linux/types.h>
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+struct mtp_file_range {
+  int fd;
+  loff_t offset;
+  int64_t length;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+  uint16_t command;
+  uint32_t transaction_id;
+};
+struct mtp_event {
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+  size_t length;
+  void * data;
+};
+#define MTP_SEND_FILE _IOW('M', 0, struct mtp_file_range)
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define MTP_RECEIVE_FILE _IOW('M', 1, struct mtp_file_range)
+#define MTP_SEND_EVENT _IOW('M', 3, struct mtp_event)
+#define MTP_SEND_FILE_WITH_HEADER _IOW('M', 4, struct mtp_file_range)
+#endif
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
diff --git a/media/ndk/NdkMediaFormat.cpp b/media/ndk/NdkMediaFormat.cpp
index 51138c8..ab0cb63 100644
--- a/media/ndk/NdkMediaFormat.cpp
+++ b/media/ndk/NdkMediaFormat.cpp
@@ -341,6 +341,7 @@
 EXPORT const char* AMEDIAFORMAT_KEY_LEVEL = "level";
 EXPORT const char* AMEDIAFORMAT_KEY_LOCATION = "location";
 EXPORT const char* AMEDIAFORMAT_KEY_LOOP = "loop";
+EXPORT const char* AMEDIAFORMAT_KEY_LOW_LATENCY = "low-latency";
 EXPORT const char* AMEDIAFORMAT_KEY_LYRICIST = "lyricist";
 EXPORT const char* AMEDIAFORMAT_KEY_MANUFACTURER = "manufacturer";
 EXPORT const char* AMEDIAFORMAT_KEY_MAX_BIT_RATE = "max-bitrate";
diff --git a/media/ndk/include/media/NdkMediaCodec.h b/media/ndk/include/media/NdkMediaCodec.h
index 1823fbc..8fb6a87 100644
--- a/media/ndk/include/media/NdkMediaCodec.h
+++ b/media/ndk/include/media/NdkMediaCodec.h
@@ -268,6 +268,9 @@
         int64_t timeoutUs) __INTRODUCED_IN(21);
 
 /**
+ * Returns the format of the codec's output.
+ * The caller must free the returned format.
+ *
  * Available since API level 21.
  */
 AMediaFormat* AMediaCodec_getOutputFormat(AMediaCodec*) __INTRODUCED_IN(21);
@@ -397,6 +400,7 @@
 /**
  * Get format of the buffer. The specified buffer index must have been previously obtained from
  * dequeueOutputBuffer.
+ * The caller must free the returned format.
  *
  * Available since API level 28.
  */
@@ -455,6 +459,7 @@
  * Call this after AMediaCodec_configure() returns successfully to get the input
  * format accepted by the codec. Do this to determine what optional configuration
  * parameters were supported by the codec.
+ * The caller must free the returned format.
  *
  * Available since API level 28.
  */
diff --git a/media/ndk/include/media/NdkMediaFormat.h b/media/ndk/include/media/NdkMediaFormat.h
index 41c2378..ed77aac 100644
--- a/media/ndk/include/media/NdkMediaFormat.h
+++ b/media/ndk/include/media/NdkMediaFormat.h
@@ -294,6 +294,13 @@
 
 #endif /* __ANDROID_API__ >= 29 */
 
+#if __ANDROID_API__ >= 30
+/**
+ * Available since API level 30.
+ */
+extern const char* AMEDIAFORMAT_KEY_LOW_LATENCY __INTRODUCED_IN(30);
+#endif /* __ANDROID_API__ >= 30 */
+
 __END_DECLS
 
 #endif // _NDK_MEDIA_FORMAT_H
diff --git a/media/ndk/include/media/NdkMediaMuxer.h b/media/ndk/include/media/NdkMediaMuxer.h
index 3fdeea4..9de3fbf 100644
--- a/media/ndk/include/media/NdkMediaMuxer.h
+++ b/media/ndk/include/media/NdkMediaMuxer.h
@@ -51,6 +51,7 @@
 typedef enum {
     AMEDIAMUXER_OUTPUT_FORMAT_MPEG_4 = 0,
     AMEDIAMUXER_OUTPUT_FORMAT_WEBM   = 1,
+    AMEDIAMUXER_OUTPUT_FORMAT_THREE_GPP   = 2,
 } OutputFormat;
 
 #if __ANDROID_API__ >= 21
diff --git a/media/ndk/libmediandk.map.txt b/media/ndk/libmediandk.map.txt
index 7531578..29f1da8 100644
--- a/media/ndk/libmediandk.map.txt
+++ b/media/ndk/libmediandk.map.txt
@@ -105,6 +105,7 @@
     AMEDIAFORMAT_KEY_LEVEL; # var introduced=28
     AMEDIAFORMAT_KEY_LOCATION; # var introduced=29
     AMEDIAFORMAT_KEY_LOOP; # var introduced=29
+    AMEDIAFORMAT_KEY_LOW_LATENCY; # var introduced=30
     AMEDIAFORMAT_KEY_LYRICIST; # var introduced=29
     AMEDIAFORMAT_KEY_MANUFACTURER; # var introduced=29
     AMEDIAFORMAT_KEY_MAX_BIT_RATE; # var introduced=29
diff --git a/media/tests/benchmark/MediaBenchmarkTest/Android.bp b/media/tests/benchmark/MediaBenchmarkTest/Android.bp
index 91b03f1..489ab04 100644
--- a/media/tests/benchmark/MediaBenchmarkTest/Android.bp
+++ b/media/tests/benchmark/MediaBenchmarkTest/Android.bp
@@ -29,6 +29,10 @@
         "android.test.base",
     ],
 
+    jni_libs: [
+        "libmediabenchmark_jni",
+    ],
+
     static_libs: [
         "libMediaBenchmark",
         "junit",
diff --git a/media/tests/benchmark/MediaBenchmarkTest/build.gradle b/media/tests/benchmark/MediaBenchmarkTest/build.gradle
index b0ee692..b2aee1a 100644
--- a/media/tests/benchmark/MediaBenchmarkTest/build.gradle
+++ b/media/tests/benchmark/MediaBenchmarkTest/build.gradle
@@ -30,7 +30,7 @@
     compileSdkVersion 29
     defaultConfig {
         applicationId "com.android.media.benchmark"
-        minSdkVersion 21
+        minSdkVersion 28
         targetSdkVersion 29
         versionCode 1
         versionName "1.0"
@@ -48,6 +48,18 @@
             manifest.srcFile 'AndroidManifest.xml'
         }
     }
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+        }
+    }
+    externalNativeBuild {
+        cmake {
+            path "src/main/cpp/CMakeLists.txt"
+            version "3.10.2"
+        }
+    }
 }
 
 repositories {
diff --git a/media/tests/benchmark/MediaBenchmarkTest/src/androidTest/java/com/android/media/benchmark/tests/DecoderTest.java b/media/tests/benchmark/MediaBenchmarkTest/src/androidTest/java/com/android/media/benchmark/tests/DecoderTest.java
index be2633d..dcee7e0 100644
--- a/media/tests/benchmark/MediaBenchmarkTest/src/androidTest/java/com/android/media/benchmark/tests/DecoderTest.java
+++ b/media/tests/benchmark/MediaBenchmarkTest/src/androidTest/java/com/android/media/benchmark/tests/DecoderTest.java
@@ -27,6 +27,7 @@
 import com.android.media.benchmark.library.CodecUtils;
 import com.android.media.benchmark.library.Decoder;
 import com.android.media.benchmark.library.Extractor;
+import com.android.media.benchmark.library.Native;
 
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -44,6 +45,9 @@
 import java.util.Arrays;
 import java.util.Collection;
 
+import static org.junit.Assert.assertTrue;
+import static org.junit.Assert.assertEquals;
+
 @RunWith(Parameterized.class)
 public class DecoderTest {
     private static final Context mContext =
@@ -104,94 +108,100 @@
     @Test(timeout = PER_TEST_TIMEOUT_MS)
     public void testDecoder() throws IOException {
         File inputFile = new File(mInputFilePath + mInputFile);
-        if (inputFile.exists()) {
-            FileInputStream fileInput = new FileInputStream(inputFile);
-            FileDescriptor fileDescriptor = fileInput.getFD();
-            Extractor extractor = new Extractor();
-            int trackCount = extractor.setUpExtractor(fileDescriptor);
-            ArrayList<ByteBuffer> inputBuffer = new ArrayList<>();
-            ArrayList<MediaCodec.BufferInfo> frameInfo = new ArrayList<>();
-            if (trackCount <= 0) {
-                Log.e(TAG, "Extraction failed. No tracks for file: " + mInputFile);
-                return;
-            }
-            for (int currentTrack = 0; currentTrack < trackCount; currentTrack++) {
-                extractor.selectExtractorTrack(currentTrack);
-                MediaFormat format = extractor.getFormat(currentTrack);
-                String mime = format.getString(MediaFormat.KEY_MIME);
-                ArrayList<String> mediaCodecs = CodecUtils.selectCodecs(mime, false);
-                if (mediaCodecs.size() <= 0) {
-                    Log.e(TAG,
-                            "No suitable codecs found for file: " + mInputFile
-                                    + " track : " + currentTrack + " mime: " + mime);
-                    continue;
+        assertTrue("Cannot find " + mInputFile + " in directory " + mInputFilePath,
+                inputFile.exists());
+        FileInputStream fileInput = new FileInputStream(inputFile);
+        FileDescriptor fileDescriptor = fileInput.getFD();
+        Extractor extractor = new Extractor();
+        int trackCount = extractor.setUpExtractor(fileDescriptor);
+        assertTrue("Extraction failed. No tracks for file: " + mInputFile, (trackCount > 0));
+        ArrayList<ByteBuffer> inputBuffer = new ArrayList<>();
+        ArrayList<MediaCodec.BufferInfo> frameInfo = new ArrayList<>();
+        for (int currentTrack = 0; currentTrack < trackCount; currentTrack++) {
+            extractor.selectExtractorTrack(currentTrack);
+            MediaFormat format = extractor.getFormat(currentTrack);
+            String mime = format.getString(MediaFormat.KEY_MIME);
+            ArrayList<String> mediaCodecs = CodecUtils.selectCodecs(mime, false);
+            assertTrue("No suitable codecs found for file: " + mInputFile + " track : " +
+                    currentTrack + " mime: " + mime, (mediaCodecs.size() > 0));
+
+            // Get samples from extractor
+            int sampleSize;
+            do {
+                sampleSize = extractor.getFrameSample();
+                MediaCodec.BufferInfo bufInfo = new MediaCodec.BufferInfo();
+                MediaCodec.BufferInfo info = extractor.getBufferInfo();
+                ByteBuffer dataBuffer = ByteBuffer.allocate(info.size);
+                dataBuffer.put(extractor.getFrameBuffer().array(), 0, info.size);
+                bufInfo.set(info.offset, info.size, info.presentationTimeUs, info.flags);
+                inputBuffer.add(dataBuffer);
+                frameInfo.add(bufInfo);
+                if (DEBUG) {
+                    Log.d(TAG, "Extracted bufInfo: flag = " + bufInfo.flags + " timestamp = " +
+                            bufInfo.presentationTimeUs + " size = " + bufInfo.size);
                 }
-                // Get samples from extractor
-                int sampleSize;
-                do {
-                    sampleSize = extractor.getFrameSample();
-                    MediaCodec.BufferInfo bufInfo = new MediaCodec.BufferInfo();
-                    MediaCodec.BufferInfo info = extractor.getBufferInfo();
-                    ByteBuffer dataBuffer = ByteBuffer.allocate(info.size);
-                    dataBuffer.put(extractor.getFrameBuffer().array(), 0, info.size);
-                    bufInfo.set(info.offset, info.size, info.presentationTimeUs, info.flags);
-                    inputBuffer.add(dataBuffer);
-                    frameInfo.add(bufInfo);
-                    if (DEBUG) {
-                        Log.d(TAG,
-                                "Extracted bufInfo: flag = " + bufInfo.flags + " timestamp = "
-                                        + bufInfo.presentationTimeUs + " size = " + bufInfo.size);
+            } while (sampleSize > 0);
+            for (String codecName : mediaCodecs) {
+                FileOutputStream decodeOutputStream = null;
+                if (WRITE_OUTPUT) {
+                    if (!Paths.get(mOutputFilePath).toFile().exists()) {
+                        Files.createDirectories(Paths.get(mOutputFilePath));
                     }
-                } while (sampleSize > 0);
-                for (String codecName : mediaCodecs) {
-                    FileOutputStream decodeOutputStream = null;
-                    if (WRITE_OUTPUT) {
-                        if (!Paths.get(mOutputFilePath).toFile().exists()) {
-                            Files.createDirectories(Paths.get(mOutputFilePath));
-                        }
-                        File outFile = new File(mOutputFilePath + "decoder.out");
-                        if (outFile.exists()) {
-                            if (!outFile.delete()) {
-                                Log.e(TAG, " Unable to delete existing file" + outFile.toString());
-                            }
-                        }
-                        if (outFile.createNewFile()) {
-                            decodeOutputStream = new FileOutputStream(outFile);
-                        } else {
-                            Log.e(TAG, "Unable to create file: " + outFile.toString());
-                        }
+                    File outFile = new File(mOutputFilePath + "decoder.out");
+                    if (outFile.exists()) {
+                        assertTrue(" Unable to delete existing file" + outFile.toString(),
+                                outFile.delete());
                     }
-                    Decoder decoder = new Decoder();
-                    decoder.setupDecoder(decodeOutputStream);
-                    int status =
-                            decoder.decode(inputBuffer, frameInfo, mAsyncMode, format, codecName);
-                    decoder.deInitCodec();
-                    if (status == 0) {
-                        decoder.dumpStatistics(
-                                mInputFile + " " + codecName, extractor.getClipDuration());
-                        Log.i(TAG,
-                                "Decoding Successful for file: " + mInputFile
-                                        + " with codec: " + codecName);
-                    } else {
-                        Log.e(TAG,
-                                "Decoder returned error " + status + " for file: " + mInputFile
-                                        + " with codec: " + codecName);
-                    }
-                    decoder.resetDecoder();
-                    if (decodeOutputStream != null) {
-                        decodeOutputStream.close();
-                    }
+                    assertTrue("Unable to create file: " + outFile.toString(),
+                            outFile.createNewFile());
+                    decodeOutputStream = new FileOutputStream(outFile);
                 }
-                extractor.unselectExtractorTrack(currentTrack);
-                inputBuffer.clear();
-                frameInfo.clear();
+                Decoder decoder = new Decoder();
+                decoder.setupDecoder(decodeOutputStream);
+                int status = decoder.decode(inputBuffer, frameInfo, mAsyncMode, format, codecName);
+                decoder.deInitCodec();
+                assertEquals("Decoder returned error " + status + " for file: " + mInputFile +
+                        " with codec: " + codecName, 0, status);
+                decoder.dumpStatistics(mInputFile + " " + codecName, extractor.getClipDuration());
+                Log.i(TAG, "Decoding Successful for file: " + mInputFile + " with codec: " +
+                        codecName);
+                decoder.resetDecoder();
+                if (decodeOutputStream != null) {
+                    decodeOutputStream.close();
+                }
             }
-            extractor.deinitExtractor();
-            fileInput.close();
-        } else {
-            Log.w(TAG,
-                    "Warning: Test Skipped. Cannot find " + mInputFile + " in directory "
-                            + mInputFilePath);
+            extractor.unselectExtractorTrack(currentTrack);
+            inputBuffer.clear();
+            frameInfo.clear();
         }
+        extractor.deinitExtractor();
+        fileInput.close();
+    }
+
+    @Test
+    public void testNativeDecoder() throws IOException {
+        File inputFile = new File(mInputFilePath + mInputFile);
+        assertTrue("Cannot find " + mInputFile + " in directory " + mInputFilePath,
+                inputFile.exists());
+        FileInputStream fileInput = new FileInputStream(inputFile);
+        FileDescriptor fileDescriptor = fileInput.getFD();
+        Extractor extractor = new Extractor();
+        int trackCount = extractor.setUpExtractor(fileDescriptor);
+        assertTrue("Extraction failed. No tracks for file: ", trackCount > 0);
+        for (int currentTrack = 0; currentTrack < trackCount; currentTrack++) {
+            extractor.selectExtractorTrack(currentTrack);
+            MediaFormat format = extractor.getFormat(currentTrack);
+            String mime = format.getString(MediaFormat.KEY_MIME);
+            ArrayList<String> mediaCodecs = CodecUtils.selectCodecs(mime, false);
+            for (String codecName : mediaCodecs) {
+                Log.i("Test: %s\n", mInputFile);
+                Native nativeDecoder = new Native();
+                int status =
+                        nativeDecoder.Decode(mInputFilePath, mInputFile, codecName, mAsyncMode);
+                assertEquals("Decoder returned error " + status + " for file: " + mInputFile, 0,
+                        status);
+            }
+        }
+        fileInput.close();
     }
 }
diff --git a/media/tests/benchmark/MediaBenchmarkTest/src/androidTest/java/com/android/media/benchmark/tests/EncoderTest.java b/media/tests/benchmark/MediaBenchmarkTest/src/androidTest/java/com/android/media/benchmark/tests/EncoderTest.java
index 9db9c84..e488d43 100644
--- a/media/tests/benchmark/MediaBenchmarkTest/src/androidTest/java/com/android/media/benchmark/tests/EncoderTest.java
+++ b/media/tests/benchmark/MediaBenchmarkTest/src/androidTest/java/com/android/media/benchmark/tests/EncoderTest.java
@@ -28,6 +28,7 @@
 import com.android.media.benchmark.library.Decoder;
 import com.android.media.benchmark.library.Encoder;
 import com.android.media.benchmark.library.Extractor;
+import com.android.media.benchmark.library.Native;
 
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -43,6 +44,9 @@
 import java.util.Arrays;
 import java.util.Collection;
 
+import static org.junit.Assert.assertTrue;
+import static org.junit.Assert.assertEquals;
+
 @RunWith(Parameterized.class)
 public class EncoderTest {
     private static final Context mContext =
@@ -85,188 +89,194 @@
     public void sampleEncoderTest() throws Exception {
         int status;
         int frameSize;
-
         //Parameters for video
         int width = 0;
         int height = 0;
         int profile = 0;
         int level = 0;
         int frameRate = 0;
-
         //Parameters for audio
         int bitRate = 0;
         int sampleRate = 0;
         int numChannels = 0;
-
         File inputFile = new File(mInputFilePath + mInputFile);
-        if (inputFile.exists()) {
-            FileInputStream fileInput = new FileInputStream(inputFile);
-            FileDescriptor fileDescriptor = fileInput.getFD();
-            Extractor extractor = new Extractor();
-            int trackCount = extractor.setUpExtractor(fileDescriptor);
-            if (trackCount <= 0) {
-                Log.e(TAG, "Extraction failed. No tracks for file: " + mInputFile);
-                return;
+        assertTrue("Cannot find " + mInputFile + " in directory " + mInputFilePath,
+                inputFile.exists());
+        FileInputStream fileInput = new FileInputStream(inputFile);
+        FileDescriptor fileDescriptor = fileInput.getFD();
+        Extractor extractor = new Extractor();
+        int trackCount = extractor.setUpExtractor(fileDescriptor);
+        assertTrue("Extraction failed. No tracks for file: " + mInputFile, (trackCount > 0));
+        ArrayList<ByteBuffer> inputBuffer = new ArrayList<>();
+        ArrayList<MediaCodec.BufferInfo> frameInfo = new ArrayList<>();
+        for (int currentTrack = 0; currentTrack < trackCount; currentTrack++) {
+            extractor.selectExtractorTrack(currentTrack);
+            MediaFormat format = extractor.getFormat(currentTrack);
+            // Get samples from extractor
+            int sampleSize;
+            do {
+                sampleSize = extractor.getFrameSample();
+                MediaCodec.BufferInfo bufInfo = new MediaCodec.BufferInfo();
+                MediaCodec.BufferInfo info = extractor.getBufferInfo();
+                ByteBuffer dataBuffer = ByteBuffer.allocate(info.size);
+                dataBuffer.put(extractor.getFrameBuffer().array(), 0, info.size);
+                bufInfo.set(info.offset, info.size, info.presentationTimeUs, info.flags);
+                inputBuffer.add(dataBuffer);
+                frameInfo.add(bufInfo);
+                if (DEBUG) {
+                    Log.d(TAG, "Extracted bufInfo: flag = " + bufInfo.flags + " timestamp = " +
+                            bufInfo.presentationTimeUs + " size = " + bufInfo.size);
+                }
+            } while (sampleSize > 0);
+            int tid = android.os.Process.myTid();
+            File decodedFile = new File(mContext.getFilesDir() + "/decoder_" + tid + ".out");
+            FileOutputStream decodeOutputStream = new FileOutputStream(decodedFile);
+            Decoder decoder = new Decoder();
+            decoder.setupDecoder(decodeOutputStream);
+            status = decoder.decode(inputBuffer, frameInfo, false, format, "");
+            assertEquals("Decoder returned error " + status + " for file: " + mInputFile, 0,
+                    status);
+            decoder.deInitCodec();
+            extractor.unselectExtractorTrack(currentTrack);
+            inputBuffer.clear();
+            frameInfo.clear();
+            if (decodeOutputStream != null) {
+                decodeOutputStream.close();
             }
-            ArrayList<ByteBuffer> inputBuffer = new ArrayList<>();
-            ArrayList<MediaCodec.BufferInfo> frameInfo = new ArrayList<>();
-            for (int currentTrack = 0; currentTrack < trackCount; currentTrack++) {
-                extractor.selectExtractorTrack(currentTrack);
-                MediaFormat format = extractor.getFormat(currentTrack);
-                // Get samples from extractor
-                int sampleSize;
-                do {
-                    sampleSize = extractor.getFrameSample();
-                    MediaCodec.BufferInfo bufInfo = new MediaCodec.BufferInfo();
-                    MediaCodec.BufferInfo info = extractor.getBufferInfo();
-                    ByteBuffer dataBuffer = ByteBuffer.allocate(info.size);
-                    dataBuffer.put(extractor.getFrameBuffer().array(), 0, info.size);
-                    bufInfo.set(info.offset, info.size, info.presentationTimeUs, info.flags);
-                    inputBuffer.add(dataBuffer);
-                    frameInfo.add(bufInfo);
+            String mime = format.getString(MediaFormat.KEY_MIME);
+            ArrayList<String> mediaCodecs = CodecUtils.selectCodecs(mime, true);
+            assertTrue("No suitable codecs found for file: " + mInputFile + " track : " +
+                    currentTrack + " mime: " + mime, (mediaCodecs.size() > 0));
+            Boolean[] encodeMode = {true, false};
+            /* Encoding the decoder's output */
+            for (Boolean asyncMode : encodeMode) {
+                for (String codecName : mediaCodecs) {
+                    FileOutputStream encodeOutputStream = null;
+                    if (WRITE_OUTPUT) {
+                        File outEncodeFile = new File(mOutputFilePath + "encoder.out");
+                        if (outEncodeFile.exists()) {
+                            assertTrue(" Unable to delete existing file" + outEncodeFile.toString(),
+                                    outEncodeFile.delete());
+                        }
+                        assertTrue("Unable to create file to write encoder output: " +
+                                outEncodeFile.toString(), outEncodeFile.createNewFile());
+                        encodeOutputStream = new FileOutputStream(outEncodeFile);
+                    }
+                    File rawFile = new File(mContext.getFilesDir() + "/decoder_" + tid + ".out");
+                    assertTrue("Cannot open file to write decoded output", rawFile.exists());
                     if (DEBUG) {
-                        Log.d(TAG, "Extracted bufInfo: flag = " + bufInfo.flags + " timestamp = " +
-                                bufInfo.presentationTimeUs + " size = " + bufInfo.size);
+                        Log.i(TAG, "Path of decoded input file: " + rawFile.toString());
                     }
-                } while (sampleSize > 0);
-
-                int tid = android.os.Process.myTid();
-                File decodedFile = new File(mContext.getFilesDir() + "/decoder_" + tid + ".out");
-                FileOutputStream decodeOutputStream = new FileOutputStream(decodedFile);
-                Decoder decoder = new Decoder();
-                decoder.setupDecoder(decodeOutputStream);
-                status = decoder.decode(inputBuffer, frameInfo, false, format, "");
-                if (status == 0) {
-                    Log.i(TAG, "Decoding complete.");
-                } else {
-                    Log.e(TAG, "Decode returned error. Encoding did not take place." + status);
-                    return;
-                }
-                decoder.deInitCodec();
-                extractor.unselectExtractorTrack(currentTrack);
-                inputBuffer.clear();
-                frameInfo.clear();
-                if (decodeOutputStream != null) {
-                    decodeOutputStream.close();
-                }
-                String mime = format.getString(MediaFormat.KEY_MIME);
-                ArrayList<String> mediaCodecs = CodecUtils.selectCodecs(mime, true);
-                if (mediaCodecs.size() <= 0) {
-                    Log.e(TAG, "No suitable codecs found for file: " + mInputFile + " track : " +
-                            currentTrack + " mime: " + mime);
-                    return;
-                }
-                Boolean[] encodeMode = {true, false};
-                /* Encoding the decoder's output */
-                for (Boolean asyncMode : encodeMode) {
-                    for (String codecName : mediaCodecs) {
-                        FileOutputStream encodeOutputStream = null;
-                        if (WRITE_OUTPUT) {
-                            File outEncodeFile = new File(mOutputFilePath + "encoder.out");
-                            if (outEncodeFile.exists()) {
-                                if (!outEncodeFile.delete()) {
-                                    Log.e(TAG, "Unable to delete existing file" +
-                                            decodedFile.toString());
-                                }
-                            }
-                            if (outEncodeFile.createNewFile()) {
-                                encodeOutputStream = new FileOutputStream(outEncodeFile);
+                    FileInputStream eleStream = new FileInputStream(rawFile);
+                    if (mime.startsWith("video/")) {
+                        width = format.getInteger(MediaFormat.KEY_WIDTH);
+                        height = format.getInteger(MediaFormat.KEY_HEIGHT);
+                        if (format.containsKey(MediaFormat.KEY_FRAME_RATE)) {
+                            frameRate = format.getInteger(MediaFormat.KEY_FRAME_RATE);
+                        } else if (frameRate <= 0) {
+                            frameRate = ENCODE_DEFAULT_FRAME_RATE;
+                        }
+                        if (format.containsKey(MediaFormat.KEY_BIT_RATE)) {
+                            bitRate = format.getInteger(MediaFormat.KEY_BIT_RATE);
+                        } else if (bitRate <= 0) {
+                            if (mime.contains("video/3gpp") || mime.contains("video/mp4v-es")) {
+                                bitRate = ENCODE_MIN_BIT_RATE;
                             } else {
-                                Log.e(TAG, "Unable to create file to write encoder output: " +
-                                        outEncodeFile.toString());
+                                bitRate = ENCODE_DEFAULT_BIT_RATE;
                             }
                         }
-                        File rawFile =
-                                new File(mContext.getFilesDir() + "/decoder_" + tid + ".out");
-                        if (rawFile.exists()) {
-                            if (DEBUG) {
-                                Log.i(TAG, "Path of decoded input file: " + rawFile.toString());
-                            }
-                            FileInputStream eleStream = new FileInputStream(rawFile);
-                            if (mime.startsWith("video/")) {
-                                width = format.getInteger(MediaFormat.KEY_WIDTH);
-                                height = format.getInteger(MediaFormat.KEY_HEIGHT);
-                                if (format.containsKey(MediaFormat.KEY_FRAME_RATE)) {
-                                    frameRate = format.getInteger(MediaFormat.KEY_FRAME_RATE);
-                                } else if (frameRate <= 0) {
-                                    frameRate = ENCODE_DEFAULT_FRAME_RATE;
-                                }
-                                if (format.containsKey(MediaFormat.KEY_BIT_RATE)) {
-                                    bitRate = format.getInteger(MediaFormat.KEY_BIT_RATE);
-                                } else if (bitRate <= 0) {
-                                    if (mime.contains("video/3gpp") ||
-                                            mime.contains("video/mp4v-es")) {
-                                        bitRate = ENCODE_MIN_BIT_RATE;
-                                    } else {
-                                        bitRate = ENCODE_DEFAULT_BIT_RATE;
-                                    }
-                                }
-                                if (format.containsKey(MediaFormat.KEY_PROFILE)) {
-                                    profile = format.getInteger(MediaFormat.KEY_PROFILE);
-                                }
-                                if (format.containsKey(MediaFormat.KEY_PROFILE)) {
-                                    level = format.getInteger(MediaFormat.KEY_LEVEL);
-                                }
-                            } else {
-                                sampleRate = format.getInteger(MediaFormat.KEY_SAMPLE_RATE);
-                                numChannels = format.getInteger(MediaFormat.KEY_CHANNEL_COUNT);
-                                bitRate = sampleRate * numChannels * 16;
-                            }
-                            /*Setup Encode Format*/
-                            MediaFormat encodeFormat;
-                            if (mime.startsWith("video/")) {
-                                frameSize = width * height * 3 / 2;
-                                encodeFormat = MediaFormat.createVideoFormat(mime, width, height);
-                                encodeFormat.setInteger(MediaFormat.KEY_FRAME_RATE, frameRate);
-                                encodeFormat.setInteger(MediaFormat.KEY_BIT_RATE, bitRate);
-                                encodeFormat.setInteger(MediaFormat.KEY_PROFILE, profile);
-                                encodeFormat.setInteger(MediaFormat.KEY_LEVEL, level);
-                                encodeFormat.setInteger(MediaFormat.KEY_I_FRAME_INTERVAL, 1);
-                                encodeFormat.setInteger(MediaFormat.KEY_MAX_INPUT_SIZE, frameSize);
-                            } else {
-                                encodeFormat = MediaFormat
-                                        .createAudioFormat(mime, sampleRate, numChannels);
-                                encodeFormat.setInteger(MediaFormat.KEY_BIT_RATE, bitRate);
-                                frameSize = 4096;
-                            }
-                            Encoder encoder = new Encoder();
-                            encoder.setupEncoder(encodeOutputStream, eleStream);
-                            status = encoder.encode(codecName, encodeFormat, mime, frameRate,
-                                    sampleRate, frameSize, asyncMode);
-                            encoder.deInitEncoder();
-                            if (status == 0) {
-                                encoder.dumpStatistics(mInputFile + "with " + codecName + " for " +
-                                        "aSyncMode = " + asyncMode, extractor.getClipDuration());
-                                Log.i(TAG, "Encoding complete for file: " + mInputFile +
-                                        " with codec: " + codecName + " for aSyncMode = " +
-                                        asyncMode);
-                            } else {
-                                Log.e(TAG,
-                                        codecName + " encoder returned error " + status + " for " +
-                                                "file:" + " " + mInputFile);
-                            }
-                            encoder.resetEncoder();
-                            eleStream.close();
-                            if (encodeOutputStream != null) {
-                                encodeOutputStream.close();
-                            }
+                        if (format.containsKey(MediaFormat.KEY_PROFILE)) {
+                            profile = format.getInteger(MediaFormat.KEY_PROFILE);
                         }
-                    }
-                }
-                //Cleanup temporary input file
-                if (decodedFile.exists()) {
-                    if (decodedFile.delete()) {
-                        Log.i(TAG, "Successfully deleted decoded file");
+                        if (format.containsKey(MediaFormat.KEY_PROFILE)) {
+                            level = format.getInteger(MediaFormat.KEY_LEVEL);
+                        }
                     } else {
-                        Log.e(TAG, "Unable to delete decoded file");
+                        sampleRate = format.getInteger(MediaFormat.KEY_SAMPLE_RATE);
+                        numChannels = format.getInteger(MediaFormat.KEY_CHANNEL_COUNT);
+                        bitRate = sampleRate * numChannels * 16;
                     }
+                    /*Setup Encode Format*/
+                    MediaFormat encodeFormat;
+                    if (mime.startsWith("video/")) {
+                        frameSize = width * height * 3 / 2;
+                        encodeFormat = MediaFormat.createVideoFormat(mime, width, height);
+                        encodeFormat.setInteger(MediaFormat.KEY_FRAME_RATE, frameRate);
+                        encodeFormat.setInteger(MediaFormat.KEY_BIT_RATE, bitRate);
+                        encodeFormat.setInteger(MediaFormat.KEY_PROFILE, profile);
+                        encodeFormat.setInteger(MediaFormat.KEY_LEVEL, level);
+                        encodeFormat.setInteger(MediaFormat.KEY_I_FRAME_INTERVAL, 1);
+                        encodeFormat.setInteger(MediaFormat.KEY_MAX_INPUT_SIZE, frameSize);
+                    } else {
+                        encodeFormat = MediaFormat.createAudioFormat(mime, sampleRate, numChannels);
+                        encodeFormat.setInteger(MediaFormat.KEY_BIT_RATE, bitRate);
+                        frameSize = 4096;
+                    }
+                    Encoder encoder = new Encoder();
+                    encoder.setupEncoder(encodeOutputStream, eleStream);
+                    status = encoder.encode(codecName, encodeFormat, mime, frameRate, sampleRate,
+                            frameSize, asyncMode);
+                    encoder.deInitEncoder();
+                    assertEquals(
+                            codecName + " encoder returned error " + status + " for " + "file:" +
+                                    " " + mInputFile, 0, status);
+                    encoder.dumpStatistics(
+                            mInputFile + "with " + codecName + " for " + "aSyncMode = " + asyncMode,
+                            extractor.getClipDuration());
+                    Log.i(TAG, "Encoding complete for file: " + mInputFile + " with codec: " +
+                            codecName + " for aSyncMode = " + asyncMode);
+                    encoder.resetEncoder();
+                    eleStream.close();
+                    if (encodeOutputStream != null) {
+                        encodeOutputStream.close();
+                    }
+
                 }
             }
-            extractor.deinitExtractor();
-            fileInput.close();
-        } else {
-            Log.w(TAG, "Warning: Test Skipped. Cannot find " + mInputFile + " in directory " +
-                    mInputFilePath);
+            //Cleanup temporary input file
+            if (decodedFile.exists()) {
+                assertTrue(" Unable to delete decoded file" + decodedFile.toString(),
+                        decodedFile.delete());
+                Log.i(TAG, "Successfully deleted decoded file");
+            }
         }
+        extractor.deinitExtractor();
+        fileInput.close();
+    }
+
+    @Test
+    public void testNativeEncoder() throws Exception {
+        File inputFile = new File(mInputFilePath + mInputFile);
+        assertTrue("Cannot find " + mInputFile + " in directory " + mInputFilePath,
+                inputFile.exists());
+        int tid = android.os.Process.myTid();
+        final String mDecodedFile = mContext.getFilesDir() + "/decoder_" + tid + ".out";
+        FileInputStream fileInput = new FileInputStream(inputFile);
+        FileDescriptor fileDescriptor = fileInput.getFD();
+        Extractor extractor = new Extractor();
+        int trackCount = extractor.setUpExtractor(fileDescriptor);
+        assertTrue("Extraction failed. No tracks for file: ", trackCount > 0);
+        for (int currentTrack = 0; currentTrack < trackCount; currentTrack++) {
+            extractor.selectExtractorTrack(currentTrack);
+            MediaFormat format = extractor.getFormat(currentTrack);
+            String mime = format.getString(MediaFormat.KEY_MIME);
+            ArrayList<String> mediaCodecs = CodecUtils.selectCodecs(mime, true);
+            // Encoding the decoder's output
+            for (String codecName : mediaCodecs) {
+                Native nativeEncoder = new Native();
+                int status =
+                        nativeEncoder.Encode(mInputFilePath, mInputFile, mDecodedFile, codecName);
+                assertEquals(
+                        codecName + " encoder returned error " + status + " for " + "file:" + " " +
+                                mInputFile, 0, status);
+            }
+        }
+        File decodedFile = new File(mDecodedFile);
+        // Cleanup temporary input file
+        if (decodedFile.exists()) {
+            assertTrue("Unable to delete - " + mDecodedFile, decodedFile.delete());
+            Log.i(TAG, "Successfully deleted - " + mDecodedFile);
+        }
+        fileInput.close();
     }
 }
diff --git a/media/tests/benchmark/MediaBenchmarkTest/src/androidTest/java/com/android/media/benchmark/tests/ExtractorTest.java b/media/tests/benchmark/MediaBenchmarkTest/src/androidTest/java/com/android/media/benchmark/tests/ExtractorTest.java
index a02011c..d4d3a06 100644
--- a/media/tests/benchmark/MediaBenchmarkTest/src/androidTest/java/com/android/media/benchmark/tests/ExtractorTest.java
+++ b/media/tests/benchmark/MediaBenchmarkTest/src/androidTest/java/com/android/media/benchmark/tests/ExtractorTest.java
@@ -18,6 +18,7 @@
 
 import com.android.media.benchmark.R;
 import com.android.media.benchmark.library.Extractor;
+import com.android.media.benchmark.library.Native;
 
 import android.content.Context;
 import android.util.Log;
@@ -35,9 +36,8 @@
 import java.util.Arrays;
 import java.util.Collection;
 
-import static org.hamcrest.CoreMatchers.equalTo;
-import static org.hamcrest.CoreMatchers.is;
-import static org.junit.Assert.assertThat;
+import static org.junit.Assert.assertTrue;
+import static org.junit.Assert.assertEquals;
 
 @RunWith(Parameterized.class)
 public class ExtractorTest {
@@ -73,20 +73,31 @@
 
     @Test
     public void sampleExtractTest() throws IOException {
-        int status = -1;
         File inputFile = new File(mInputFilePath + mInputFileName);
-        if (inputFile.exists()) {
-            FileInputStream fileInput = new FileInputStream(inputFile);
-            FileDescriptor fileDescriptor = fileInput.getFD();
-            Extractor extractor = new Extractor();
-            extractor.setUpExtractor(fileDescriptor);
-            status = extractor.extractSample(mTrackId);
-            extractor.deinitExtractor();
-            extractor.dumpStatistics(mInputFileName);
-            fileInput.close();
-        } else {
-            Log.e(TAG, "Cannot find " + mInputFileName + " in directory " + mInputFilePath);
-        }
-        assertThat(status, is(equalTo(0)));
+        assertTrue("Cannot find " + mInputFileName + " in directory " + mInputFilePath,
+                inputFile.exists());
+        FileInputStream fileInput = new FileInputStream(inputFile);
+        FileDescriptor fileDescriptor = fileInput.getFD();
+        Extractor extractor = new Extractor();
+        extractor.setUpExtractor(fileDescriptor);
+        int status = extractor.extractSample(mTrackId);
+        assertEquals("Extraction failed for " + mInputFileName, 0, status);
+        Log.i(TAG, "Extracted " + mInputFileName + " successfully.");
+        extractor.deinitExtractor();
+        extractor.dumpStatistics(mInputFileName);
+        fileInput.close();
+    }
+
+    @Test
+    public void sampleExtractNativeTest() throws IOException {
+        Native nativeExtractor = new Native();
+        File inputFile = new File(mInputFilePath + mInputFileName);
+        assertTrue("Cannot find " + mInputFileName + " in directory " + mInputFilePath,
+                inputFile.exists());
+        FileInputStream fileInput = new FileInputStream(inputFile);
+        int status = nativeExtractor.Extract(mInputFilePath, mInputFileName);
+        fileInput.close();
+        assertEquals("Extraction failed for " + mInputFileName, 0, status);
+        Log.i(TAG, "Extracted " + mInputFileName + " successfully.");
     }
 }
diff --git a/media/tests/benchmark/MediaBenchmarkTest/src/androidTest/java/com/android/media/benchmark/tests/MuxerTest.java b/media/tests/benchmark/MediaBenchmarkTest/src/androidTest/java/com/android/media/benchmark/tests/MuxerTest.java
index 8c3080c..355c701 100644
--- a/media/tests/benchmark/MediaBenchmarkTest/src/androidTest/java/com/android/media/benchmark/tests/MuxerTest.java
+++ b/media/tests/benchmark/MediaBenchmarkTest/src/androidTest/java/com/android/media/benchmark/tests/MuxerTest.java
@@ -18,6 +18,7 @@
 import com.android.media.benchmark.R;
 import com.android.media.benchmark.library.Extractor;
 import com.android.media.benchmark.library.Muxer;
+import com.android.media.benchmark.library.Native;
 
 import androidx.test.platform.app.InstrumentationRegistry;
 
@@ -42,9 +43,9 @@
 import java.util.Hashtable;
 import java.util.Map;
 
-import static org.hamcrest.CoreMatchers.equalTo;
-import static org.hamcrest.CoreMatchers.is;
-import static org.junit.Assert.assertThat;
+import static org.junit.Assert.assertTrue;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotEquals;
 
 @RunWith(Parameterized.class)
 public class MuxerTest {
@@ -95,58 +96,69 @@
 
     @Test
     public void sampleMuxerTest() throws IOException {
-        int status = -1;
         File inputFile = new File(mInputFilePath + mInputFileName);
-        if (inputFile.exists()) {
-            FileInputStream fileInput = new FileInputStream(inputFile);
-            FileDescriptor fileDescriptor = fileInput.getFD();
-            ArrayList<ByteBuffer> inputBuffer = new ArrayList<>();
-            ArrayList<MediaCodec.BufferInfo> inputBufferInfo = new ArrayList<>();
-            Extractor extractor = new Extractor();
-            int trackCount = extractor.setUpExtractor(fileDescriptor);
-            for (int currentTrack = 0; currentTrack < trackCount; currentTrack++) {
-                extractor.selectExtractorTrack(currentTrack);
-                while (true) {
-                    int sampleSize = extractor.getFrameSample();
-                    MediaCodec.BufferInfo bufferInfo = extractor.getBufferInfo();
-                    MediaCodec.BufferInfo tempBufferInfo = new MediaCodec.BufferInfo();
-                    tempBufferInfo
-                            .set(bufferInfo.offset, bufferInfo.size, bufferInfo.presentationTimeUs,
-                                    bufferInfo.flags);
-                    inputBufferInfo.add(tempBufferInfo);
-                    ByteBuffer tempSampleBuffer = ByteBuffer.allocate(tempBufferInfo.size);
-                    tempSampleBuffer.put(extractor.getFrameBuffer().array(), 0, bufferInfo.size);
-                    inputBuffer.add(tempSampleBuffer);
-                    if (sampleSize < 0) {
-                        break;
-                    }
-                }
-                MediaFormat format = extractor.getFormat(currentTrack);
-                int outputFormat = mMapFormat.getOrDefault(mFormat, -1);
-                if (outputFormat != -1) {
-                    Muxer muxer = new Muxer();
-                    int trackIndex = muxer.setUpMuxer(mContext, outputFormat, format);
-                    status = muxer.mux(trackIndex, inputBuffer, inputBufferInfo);
-                    if (status != 0) {
-                        Log.e(TAG, "Cannot perform write operation for " + mInputFileName);
-                    }
-                    muxer.deInitMuxer();
-                    muxer.dumpStatistics(mInputFileName, extractor.getClipDuration());
-                    muxer.resetMuxer();
-                    extractor.unselectExtractorTrack(currentTrack);
-                    inputBufferInfo.clear();
-                    inputBuffer.clear();
-                } else {
-                    Log.e(TAG, "Test failed for " + mInputFileName + ". Returned invalid " +
-                            "output format for given " + mFormat + " format.");
+        assertTrue("Cannot find " + mInputFileName + " in directory " + mInputFilePath,
+                inputFile.exists());
+        FileInputStream fileInput = new FileInputStream(inputFile);
+        FileDescriptor fileDescriptor = fileInput.getFD();
+        ArrayList<ByteBuffer> inputBuffer = new ArrayList<>();
+        ArrayList<MediaCodec.BufferInfo> inputBufferInfo = new ArrayList<>();
+        Extractor extractor = new Extractor();
+        int trackCount = extractor.setUpExtractor(fileDescriptor);
+        for (int currentTrack = 0; currentTrack < trackCount; currentTrack++) {
+            extractor.selectExtractorTrack(currentTrack);
+            while (true) {
+                int sampleSize = extractor.getFrameSample();
+                MediaCodec.BufferInfo bufferInfo = extractor.getBufferInfo();
+                MediaCodec.BufferInfo tempBufferInfo = new MediaCodec.BufferInfo();
+                tempBufferInfo
+                        .set(bufferInfo.offset, bufferInfo.size, bufferInfo.presentationTimeUs,
+                                bufferInfo.flags);
+                inputBufferInfo.add(tempBufferInfo);
+                ByteBuffer tempSampleBuffer = ByteBuffer.allocate(tempBufferInfo.size);
+                tempSampleBuffer.put(extractor.getFrameBuffer().array(), 0, bufferInfo.size);
+                inputBuffer.add(tempSampleBuffer);
+                if (sampleSize < 0) {
+                    break;
                 }
             }
-            extractor.deinitExtractor();
-            fileInput.close();
-        } else {
-            Log.w(TAG, "Warning: Test Skipped. Cannot find " + mInputFileName + " in directory " +
-                    mInputFilePath);
+            MediaFormat format = extractor.getFormat(currentTrack);
+            int outputFormat = mMapFormat.getOrDefault(mFormat, -1);
+            assertNotEquals("Test failed for " + mInputFileName + ". Returned invalid " +
+                    "output format for given " + mFormat + " format.", -1, outputFormat);
+            Muxer muxer = new Muxer();
+            int trackIndex = muxer.setUpMuxer(mContext, outputFormat, format);
+            int status = muxer.mux(trackIndex, inputBuffer, inputBufferInfo);
+            assertEquals("Cannot perform write operation for " + mInputFileName, 0, status);
+            Log.i(TAG, "Muxed " + mInputFileName + " successfully.");
+            muxer.deInitMuxer();
+            muxer.dumpStatistics(mInputFileName, extractor.getClipDuration());
+            muxer.resetMuxer();
+            extractor.unselectExtractorTrack(currentTrack);
+            inputBufferInfo.clear();
+            inputBuffer.clear();
+
         }
-        assertThat(status, is(equalTo(0)));
+        extractor.deinitExtractor();
+        fileInput.close();
+    }
+
+    @Test
+    public void sampleMuxerNativeTest() {
+        Native nativeMuxer = new Native();
+        File inputFile = new File(mInputFilePath + mInputFileName);
+        assertTrue("Cannot find " + mInputFileName + " in directory " + mInputFilePath,
+                inputFile.exists());
+        int tid = android.os.Process.myTid();
+        String mMuxOutputFile = (mContext.getFilesDir() + "/mux_" + tid + ".out");
+        int status = nativeMuxer.Mux(mInputFilePath, mInputFileName, mMuxOutputFile, mFormat);
+        assertEquals("Cannot perform write operation for " + mInputFileName, 0, status);
+        Log.i(TAG, "Muxed " + mInputFileName + " successfully.");
+        File muxedFile = new File(mMuxOutputFile);
+        // Cleanup temporary output file
+        if (muxedFile.exists()) {
+            assertTrue("Unable to delete" + mMuxOutputFile + " file.",
+                    muxedFile.delete());
+        }
     }
 }
diff --git a/media/tests/benchmark/MediaBenchmarkTest/src/main/cpp/Android.bp b/media/tests/benchmark/MediaBenchmarkTest/src/main/cpp/Android.bp
new file mode 100644
index 0000000..c72eb55
--- /dev/null
+++ b/media/tests/benchmark/MediaBenchmarkTest/src/main/cpp/Android.bp
@@ -0,0 +1,32 @@
+cc_test_library {
+    name: "libmediabenchmark_jni",
+
+    defaults: [
+        "libmediabenchmark_common-defaults",
+        "libmediabenchmark_soft_sanitize_all-defaults",
+    ],
+
+    srcs: [
+        "NativeExtractor.cpp",
+        "NativeMuxer.cpp",
+        "NativeEncoder.cpp",
+        "NativeDecoder.cpp",
+    ],
+
+    shared_libs: [
+        "liblog",
+    ],
+
+    static_libs: [
+        "libmediabenchmark_common",
+        "libmediabenchmark_extractor",
+        "libmediabenchmark_muxer",
+        "libmediabenchmark_decoder",
+        "libmediabenchmark_encoder",
+    ],
+
+    cflags: [
+        "-Wall",
+        "-Werror",
+    ],
+}
diff --git a/media/tests/benchmark/MediaBenchmarkTest/src/main/cpp/CMakeLists.txt b/media/tests/benchmark/MediaBenchmarkTest/src/main/cpp/CMakeLists.txt
new file mode 100644
index 0000000..5823883
--- /dev/null
+++ b/media/tests/benchmark/MediaBenchmarkTest/src/main/cpp/CMakeLists.txt
@@ -0,0 +1,44 @@
+#
+# Copyright (C) 2019 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may not
+# use this file except in compliance with the License. You may obtain a copy of
+# the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations under
+# the License.
+#
+
+cmake_minimum_required(VERSION 3.4.1)
+
+set(native_source_path "../../../../src/native")
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Werror")
+
+add_library(
+  mediabenchmark_jni SHARED
+  NativeExtractor.cpp
+  NativeMuxer.cpp
+  NativeDecoder.cpp
+  NativeEncoder.cpp
+  ${native_source_path}/common/BenchmarkCommon.cpp
+  ${native_source_path}/common/Stats.cpp
+  ${native_source_path}/common/utils/Timers.cpp
+  ${native_source_path}/extractor/Extractor.cpp
+  ${native_source_path}/muxer/Muxer.cpp
+  ${native_source_path}/decoder/Decoder.cpp
+  ${native_source_path}/encoder/Encoder.cpp)
+
+include_directories(${native_source_path}/common)
+include_directories(${native_source_path}/extractor)
+include_directories(${native_source_path}/muxer)
+include_directories(${native_source_path}/decoder)
+include_directories(${native_source_path}/encoder)
+
+find_library(log-lib log)
+
+target_link_libraries(mediabenchmark_jni mediandk ${log-lib})
diff --git a/media/tests/benchmark/MediaBenchmarkTest/src/main/cpp/NativeDecoder.cpp b/media/tests/benchmark/MediaBenchmarkTest/src/main/cpp/NativeDecoder.cpp
new file mode 100644
index 0000000..5aa35a2
--- /dev/null
+++ b/media/tests/benchmark/MediaBenchmarkTest/src/main/cpp/NativeDecoder.cpp
@@ -0,0 +1,126 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT 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 "NativeDecoder"
+
+#include <jni.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/stat.h>
+
+#include <android/log.h>
+
+#include "Decoder.h"
+
+extern "C" JNIEXPORT int JNICALL Java_com_android_media_benchmark_library_Native_Decode(
+        JNIEnv *env, jobject thiz, jstring jFilePath, jstring jFileName, jstring jCodecName,
+        jboolean asyncMode) {
+    const char *filePath = env->GetStringUTFChars(jFilePath, nullptr);
+    const char *fileName = env->GetStringUTFChars(jFileName, nullptr);
+    string sFilePath = string(filePath) + string(fileName);
+    UNUSED(thiz);
+    FILE *inputFp = fopen(sFilePath.c_str(), "rb");
+    env->ReleaseStringUTFChars(jFileName, fileName);
+    env->ReleaseStringUTFChars(jFilePath, filePath);
+    if (!inputFp) {
+        ALOGE("Unable to open input file for reading");
+        return -1;
+    }
+
+    Decoder *decoder = new Decoder();
+    Extractor *extractor = decoder->getExtractor();
+    if (!extractor) {
+        ALOGE("Extractor creation failed");
+        return -1;
+    }
+
+    // Read file properties
+    struct stat buf;
+    stat(sFilePath.c_str(), &buf);
+    size_t fileSize = buf.st_size;
+    if (fileSize > kMaxBufferSize) {
+        ALOGE("File size greater than maximum buffer size");
+        return -1;
+    }
+    int32_t fd = fileno(inputFp);
+    int32_t trackCount = extractor->initExtractor(fd, fileSize);
+    if (trackCount <= 0) {
+        ALOGE("initExtractor failed");
+        return -1;
+    }
+    for (int curTrack = 0; curTrack < trackCount; curTrack++) {
+        int32_t status = extractor->setupTrackFormat(curTrack);
+        if (status != 0) {
+            ALOGE("Track Format invalid");
+            return -1;
+        }
+
+        uint8_t *inputBuffer = (uint8_t *)malloc(fileSize);
+        if (!inputBuffer) {
+            ALOGE("Insufficient memory");
+            return -1;
+        }
+
+        vector<AMediaCodecBufferInfo> frameInfo;
+        AMediaCodecBufferInfo info;
+        uint32_t inputBufferOffset = 0;
+
+        // Get frame data
+        while (1) {
+            status = extractor->getFrameSample(info);
+            if (status || !info.size) break;
+            // copy the meta data and buffer to be passed to decoder
+            if (inputBufferOffset + info.size > kMaxBufferSize) {
+                ALOGE("Memory allocated not sufficient");
+                free(inputBuffer);
+                return -1;
+            }
+            memcpy(inputBuffer + inputBufferOffset, extractor->getFrameBuf(), info.size);
+            frameInfo.push_back(info);
+            inputBufferOffset += info.size;
+        }
+
+        const char *codecName = env->GetStringUTFChars(jCodecName, nullptr);
+        string sCodecName = string(codecName);
+        decoder->setupDecoder();
+        status = decoder->decode(inputBuffer, frameInfo, sCodecName, asyncMode);
+        if (status != AMEDIA_OK) {
+            ALOGE("Decode returned error");
+            free(inputBuffer);
+            env->ReleaseStringUTFChars(jCodecName, codecName);
+            return -1;
+        }
+        decoder->deInitCodec();
+        env->ReleaseStringUTFChars(jCodecName, codecName);
+        const char *inputReference = env->GetStringUTFChars(jFileName, nullptr);
+        string sInputReference = string(inputReference);
+        decoder->dumpStatistics(sInputReference);
+        env->ReleaseStringUTFChars(jFileName, inputReference);
+        if(inputBuffer) {
+            free(inputBuffer);
+            inputBuffer = nullptr;
+        }
+        decoder->resetDecoder();
+    }
+    if(inputFp) {
+        fclose(inputFp);
+        inputFp = nullptr;
+    }
+    extractor->deInitExtractor();
+    delete decoder;
+    return 0;
+}
diff --git a/media/tests/benchmark/MediaBenchmarkTest/src/main/cpp/NativeEncoder.cpp b/media/tests/benchmark/MediaBenchmarkTest/src/main/cpp/NativeEncoder.cpp
new file mode 100644
index 0000000..2deda68
--- /dev/null
+++ b/media/tests/benchmark/MediaBenchmarkTest/src/main/cpp/NativeEncoder.cpp
@@ -0,0 +1,199 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT 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 "NativeEncoder"
+
+#include <jni.h>
+#include <fstream>
+#include <iostream>
+#include <sys/stat.h>
+
+#include <android/log.h>
+
+#include "Decoder.h"
+#include "Encoder.h"
+
+#include <stdio.h>
+
+extern "C" JNIEXPORT int JNICALL Java_com_android_media_benchmark_library_Native_Encode(
+        JNIEnv *env, jobject thiz, jstring jFilePath, jstring jFileName, jstring jOutFilePath,
+        jstring jCodecName) {
+    const char *filePath = env->GetStringUTFChars(jFilePath, nullptr);
+    const char *fileName = env->GetStringUTFChars(jFileName, nullptr);
+    string sFilePath = string(filePath) + string(fileName);
+    UNUSED(thiz);
+    FILE *inputFp = fopen(sFilePath.c_str(), "rb");
+    env->ReleaseStringUTFChars(jFileName, fileName);
+    env->ReleaseStringUTFChars(jFilePath, filePath);
+    if (!inputFp) {
+        ALOGE("Unable to open input file for reading");
+        return -1;
+    }
+
+    Decoder *decoder = new Decoder();
+    Extractor *extractor = decoder->getExtractor();
+    if (!extractor) {
+        ALOGE("Extractor creation failed");
+        return -1;
+    }
+
+    // Read file properties
+    struct stat buf;
+    stat(sFilePath.c_str(), &buf);
+    size_t fileSize = buf.st_size;
+    if (fileSize > kMaxBufferSize) {
+        ALOGE("File size greater than maximum buffer size");
+        return -1;
+    }
+    int32_t fd = fileno(inputFp);
+    int32_t trackCount = extractor->initExtractor(fd, fileSize);
+    if (trackCount <= 0) {
+        ALOGE("initExtractor failed");
+        return -1;
+    }
+
+    for (int curTrack = 0; curTrack < trackCount; curTrack++) {
+        int32_t status = extractor->setupTrackFormat(curTrack);
+        if (status != 0) {
+            ALOGE("Track Format invalid");
+            return -1;
+        }
+        uint8_t *inputBuffer = (uint8_t *)malloc(fileSize);
+        if (!inputBuffer) {
+            ALOGE("Insufficient memory");
+            return -1;
+        }
+        vector<AMediaCodecBufferInfo> frameInfo;
+        AMediaCodecBufferInfo info;
+        uint32_t inputBufferOffset = 0;
+
+        // Get frame data
+        while (1) {
+            status = extractor->getFrameSample(info);
+            if (status || !info.size) break;
+            // copy the meta data and buffer to be passed to decoder
+            if (inputBufferOffset + info.size > kMaxBufferSize) {
+                ALOGE("Memory allocated not sufficient");
+                free(inputBuffer);
+                return -1;
+            }
+            memcpy(inputBuffer + inputBufferOffset, extractor->getFrameBuf(), info.size);
+            frameInfo.push_back(info);
+            inputBufferOffset += info.size;
+        }
+        string decName = "";
+        const char *outputFilePath = env->GetStringUTFChars(jOutFilePath, nullptr);
+        FILE *outFp = fopen(outputFilePath, "wb");
+        if (outFp == nullptr) {
+            ALOGE("%s - File failed to open for writing!", outputFilePath);
+            free(inputBuffer);
+            return -1;
+        }
+        decoder->setupDecoder();
+        status = decoder->decode(inputBuffer, frameInfo, decName, false /*asyncMode */, outFp);
+        if (status != AMEDIA_OK) {
+            ALOGE("Decode returned error");
+            free(inputBuffer);
+            return -1;
+        }
+        AMediaFormat *format = extractor->getFormat();
+        if(inputBuffer) {
+            free(inputBuffer);
+            inputBuffer = nullptr;
+        }
+        const char *mime = nullptr;
+        AMediaFormat_getString(format, AMEDIAFORMAT_KEY_MIME, &mime);
+        if (!mime) {
+            ALOGE("Error in AMediaFormat_getString");
+            return -1;
+        }
+        ifstream eleStream;
+        eleStream.open(outputFilePath, ifstream::binary | ifstream::ate);
+        if (!eleStream.is_open()) {
+            ALOGE("%s - File failed to open for reading!", outputFilePath);
+            env->ReleaseStringUTFChars(jOutFilePath, outputFilePath);
+            return -1;
+        }
+        const char *codecName = env->GetStringUTFChars(jCodecName, NULL);
+        const char *inputReference = env->GetStringUTFChars(jFileName, nullptr);
+        string sCodecName = string(codecName);
+        string sInputReference = string(inputReference);
+
+        bool asyncMode[2] = {true, false};
+        for (int i = 0; i < 2; i++) {
+            size_t eleSize = eleStream.tellg();
+            eleStream.seekg(0, ifstream::beg);
+
+            // Get encoder params
+            encParameter encParams;
+            if (!strncmp(mime, "video/", 6)) {
+                AMediaFormat_getInt32(format, AMEDIAFORMAT_KEY_WIDTH, &encParams.width);
+                AMediaFormat_getInt32(format, AMEDIAFORMAT_KEY_HEIGHT, &encParams.height);
+                AMediaFormat_getInt32(format, AMEDIAFORMAT_KEY_FRAME_RATE, &encParams.frameRate);
+                AMediaFormat_getInt32(format, AMEDIAFORMAT_KEY_BIT_RATE, &encParams.bitrate);
+                if (encParams.bitrate <= 0 || encParams.frameRate <= 0) {
+                    encParams.frameRate = 25;
+                    if (!strcmp(mime, "video/3gpp") || !strcmp(mime, "video/mp4v-es")) {
+                        encParams.bitrate = 600000 /* 600 Kbps */;
+                    } else {
+                        encParams.bitrate = 8000000 /* 8 Mbps */;
+                    }
+                }
+                AMediaFormat_getInt32(format, AMEDIAFORMAT_KEY_PROFILE, &encParams.profile);
+                AMediaFormat_getInt32(format, AMEDIAFORMAT_KEY_LEVEL, &encParams.level);
+            } else {
+                AMediaFormat_getInt32(format, AMEDIAFORMAT_KEY_SAMPLE_RATE, &encParams.sampleRate);
+                AMediaFormat_getInt32(format, AMEDIAFORMAT_KEY_CHANNEL_COUNT,
+                                      &encParams.numChannels);
+                encParams.bitrate =
+                        encParams.sampleRate * encParams.numChannels * 16 /* bitsPerSample */;
+            }
+            Encoder *encoder = new Encoder();
+            encoder->setupEncoder();
+            status = encoder->encode(sCodecName, eleStream, eleSize, asyncMode[i], encParams,
+                                     (char *)mime);
+            encoder->deInitCodec();
+            cout << "codec : " << codecName << endl;
+            ALOGV(" asyncMode = %d \n", asyncMode[i]);
+            encoder->dumpStatistics(sInputReference, extractor->getClipDuration());
+            encoder->resetEncoder();
+            delete encoder;
+            encoder = nullptr;
+        }
+        eleStream.close();
+        if (outFp) {
+            fclose(outFp);
+            outFp = nullptr;
+        }
+        env->ReleaseStringUTFChars(jFileName, inputReference);
+        env->ReleaseStringUTFChars(jCodecName, codecName);
+        env->ReleaseStringUTFChars(jOutFilePath, outputFilePath);
+        if (format) {
+            AMediaFormat_delete(format);
+            format = nullptr;
+        }
+        decoder->deInitCodec();
+        decoder->resetDecoder();
+    }
+    if(inputFp) {
+        fclose(inputFp);
+        inputFp = nullptr;
+    }
+    extractor->deInitExtractor();
+    delete decoder;
+    return 0;
+}
diff --git a/media/tests/benchmark/MediaBenchmarkTest/src/main/cpp/NativeExtractor.cpp b/media/tests/benchmark/MediaBenchmarkTest/src/main/cpp/NativeExtractor.cpp
new file mode 100644
index 0000000..21099d3
--- /dev/null
+++ b/media/tests/benchmark/MediaBenchmarkTest/src/main/cpp/NativeExtractor.cpp
@@ -0,0 +1,68 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT 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 "NativeExtractor"
+
+#include <jni.h>
+#include <string>
+#include <sys/stat.h>
+
+#include "Extractor.h"
+
+extern "C"
+JNIEXPORT int32_t JNICALL
+Java_com_android_media_benchmark_library_Native_Extract(JNIEnv *env, jobject thiz,
+                                                        jstring jInputFilePath,
+                                                        jstring jInputFileName) {
+    UNUSED(thiz);
+    const char *inputFilePath = env->GetStringUTFChars(jInputFilePath, nullptr);
+    const char *inputFileName = env->GetStringUTFChars(jInputFileName, nullptr);
+    string sFilePath = string(inputFilePath) + string(inputFileName);
+    FILE *inputFp = fopen(sFilePath.c_str(), "rb");
+
+    // Read file properties
+    struct stat buf;
+    stat(sFilePath.c_str(), &buf);
+    size_t fileSize = buf.st_size;
+    int32_t fd = fileno(inputFp);
+
+    Extractor *extractObj = new Extractor();
+    int32_t trackCount = extractObj->initExtractor((long)fd, fileSize);
+    if (trackCount <= 0) {
+        ALOGE("initExtractor failed");
+        return -1;
+    }
+
+    int32_t trackID = 0;
+    int32_t status = extractObj->extract(trackID);
+    if (status != AMEDIA_OK) {
+        ALOGE("Extraction failed");
+        return -1;
+    }
+    if (inputFp) {
+        fclose(inputFp);
+        inputFp = nullptr;
+    }
+    extractObj->deInitExtractor();
+    extractObj->dumpStatistics(inputFileName);
+
+    env->ReleaseStringUTFChars(jInputFilePath, inputFilePath);
+    env->ReleaseStringUTFChars(jInputFileName, inputFileName);
+
+    delete extractObj;
+    return status;
+}
diff --git a/media/tests/benchmark/MediaBenchmarkTest/src/main/cpp/NativeMuxer.cpp b/media/tests/benchmark/MediaBenchmarkTest/src/main/cpp/NativeMuxer.cpp
new file mode 100644
index 0000000..4af845a
--- /dev/null
+++ b/media/tests/benchmark/MediaBenchmarkTest/src/main/cpp/NativeMuxer.cpp
@@ -0,0 +1,182 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT 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 "NativeMuxer"
+
+#include <jni.h>
+#include <string>
+#include <sys/stat.h>
+
+#include "Muxer.h"
+
+MUXER_OUTPUT_T getMuxerOutFormat(const char *fmt);
+
+extern "C"
+JNIEXPORT int32_t JNICALL
+Java_com_android_media_benchmark_library_Native_Mux(JNIEnv *env, jobject thiz,
+                                                    jstring jInputFilePath, jstring jInputFileName,
+                                                    jstring jOutputFilePath, jstring jFormat) {
+    UNUSED(thiz);
+    ALOGV("Mux the samples given by extractor");
+    const char *inputFilePath = env->GetStringUTFChars(jInputFilePath, nullptr);
+    const char *inputFileName = env->GetStringUTFChars(jInputFileName, nullptr);
+    string sInputFile = string(inputFilePath) + string(inputFileName);
+    FILE *inputFp = fopen(sInputFile.c_str(), "rb");
+    if (!inputFp) {
+        ALOGE("Unable to open input file for reading");
+        return -1;
+    }
+
+    const char *fmt = env->GetStringUTFChars(jFormat, nullptr);
+    MUXER_OUTPUT_T outputFormat = getMuxerOutFormat(fmt);
+    env->ReleaseStringUTFChars(jFormat, fmt);
+    if (outputFormat == MUXER_OUTPUT_FORMAT_INVALID) {
+        ALOGE("output format is MUXER_OUTPUT_FORMAT_INVALID");
+        return MUXER_OUTPUT_FORMAT_INVALID;
+    }
+
+    Muxer *muxerObj = new Muxer();
+    Extractor *extractor = muxerObj->getExtractor();
+    if (!extractor) {
+        ALOGE("Extractor creation failed");
+        return -1;
+    }
+
+    // Read file properties
+    struct stat buf;
+    stat(sInputFile.c_str(), &buf);
+    size_t fileSize = buf.st_size;
+    int32_t fd = fileno(inputFp);
+
+    int32_t trackCount = extractor->initExtractor(fd, fileSize);
+    if (trackCount <= 0) {
+        ALOGE("initExtractor failed");
+        return -1;
+    }
+
+    for (int curTrack = 0; curTrack < trackCount; curTrack++) {
+        int32_t status = extractor->setupTrackFormat(curTrack);
+        if (status != 0) {
+            ALOGE("Track Format invalid");
+            return -1;
+        }
+
+        uint8_t *inputBuffer = (uint8_t *)malloc(fileSize);
+        if (!inputBuffer) {
+            ALOGE("Allocation Failed");
+            return -1;
+        }
+        vector<AMediaCodecBufferInfo> frameInfos;
+        AMediaCodecBufferInfo info;
+        uint32_t inputBufferOffset = 0;
+
+        // Get Frame Data
+        while (1) {
+            status = extractor->getFrameSample(info);
+            if (status || !info.size) break;
+            // copy the meta data and buffer to be passed to muxer
+            if (inputBufferOffset + info.size > fileSize) {
+                ALOGE("Memory allocated not sufficient");
+                if (inputBuffer) {
+                    free(inputBuffer);
+                    inputBuffer = nullptr;
+                }
+                return -1;
+            }
+            memcpy(inputBuffer + inputBufferOffset, extractor->getFrameBuf(),
+                   static_cast<size_t>(info.size));
+            info.offset = inputBufferOffset;
+            frameInfos.push_back(info);
+            inputBufferOffset += info.size;
+        }
+
+        const char *outputFilePath = env->GetStringUTFChars(jOutputFilePath, nullptr);
+        FILE *outputFp = fopen(((string)outputFilePath).c_str(), "w+b");
+        env->ReleaseStringUTFChars(jOutputFilePath, outputFilePath);
+
+        if (!outputFp) {
+            ALOGE("Unable to open output file for writing");
+            if (inputBuffer) {
+                free(inputBuffer);
+                inputBuffer = nullptr;
+            }
+            return -1;
+        }
+        int32_t outFd = fileno(outputFp);
+
+        status = muxerObj->initMuxer(outFd, (MUXER_OUTPUT_T)outputFormat);
+        if (status != 0) {
+            ALOGE("initMuxer failed");
+            if (inputBuffer) {
+                free(inputBuffer);
+                inputBuffer = nullptr;
+            }
+            return -1;
+        }
+
+        status = muxerObj->mux(inputBuffer, frameInfos);
+        if (status != 0) {
+            ALOGE("Mux failed");
+            if (inputBuffer) {
+                free(inputBuffer);
+                inputBuffer = nullptr;
+            }
+            return -1;
+        }
+        muxerObj->deInitMuxer();
+        muxerObj->dumpStatistics(inputFileName);
+        env->ReleaseStringUTFChars(jInputFilePath, inputFilePath);
+        env->ReleaseStringUTFChars(jInputFileName, inputFileName);
+
+        if (inputBuffer) {
+            free(inputBuffer);
+            inputBuffer = nullptr;
+        }
+        if (outputFp) {
+            fclose(outputFp);
+            outputFp = nullptr;
+        }
+        muxerObj->resetMuxer();
+    }
+    if (inputFp) {
+        fclose(inputFp);
+        inputFp = nullptr;
+    }
+    extractor->deInitExtractor();
+    delete muxerObj;
+
+    return 0;
+}
+
+MUXER_OUTPUT_T getMuxerOutFormat(const char *fmt) {
+    static const struct {
+        const char *name;
+        int value;
+    } kFormatMaps[] = {{"mp4", MUXER_OUTPUT_FORMAT_MPEG_4},
+                       {"webm", MUXER_OUTPUT_FORMAT_WEBM},
+                       {"3gpp", MUXER_OUTPUT_FORMAT_3GPP},
+                       {"ogg", MUXER_OUTPUT_FORMAT_OGG}};
+
+    int32_t muxOutputFormat = MUXER_OUTPUT_FORMAT_INVALID;
+    for (auto kFormatMap : kFormatMaps) {
+        if (!strcmp(fmt, kFormatMap.name)) {
+            muxOutputFormat = kFormatMap.value;
+            break;
+        }
+    }
+    return (MUXER_OUTPUT_T)muxOutputFormat;
+}
diff --git a/media/tests/benchmark/MediaBenchmarkTest/src/main/java/com/android/media/benchmark/library/Native.java b/media/tests/benchmark/MediaBenchmarkTest/src/main/java/com/android/media/benchmark/library/Native.java
new file mode 100644
index 0000000..0e01754
--- /dev/null
+++ b/media/tests/benchmark/MediaBenchmarkTest/src/main/java/com/android/media/benchmark/library/Native.java
@@ -0,0 +1,32 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT 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 com.android.media.benchmark.library;
+
+public class Native {
+    static { System.loadLibrary("mediabenchmark_jni"); }
+
+    public native int Extract(String inputFilePath, String inputFileName);
+
+    public native int Mux(String inputFilePath, String inputFileName, String outputFilePath,
+            String format);
+
+    public native int Decode(String inputFilePath, String inputFileName, String codecName,
+            boolean asyncMode);
+
+    public native int Encode(String inputFilePath, String inputFileName, String outputFilePath,
+            String codecName);
+}
diff --git a/media/tests/benchmark/README.md b/media/tests/benchmark/README.md
index 520a2cf..05fbe6f 100644
--- a/media/tests/benchmark/README.md
+++ b/media/tests/benchmark/README.md
@@ -14,11 +14,11 @@
 
 To run the test suite for measuring performance of the native layer, follow the following steps:
 
-The binaries will be created in the following path : ${OUT}/data/nativetest64/
+The binaries will be created in the following path : $OUT/data/nativetest64/
 
-adb push $(OUT)/data/nativetest64/* /data/local/tmp/
+adb push $OUT/data/nativetest64/* /data/local/tmp/
 
-Eg. adb push $(OUT)/data/nativetest64/extractorTest/extractorTest /data/local/tmp/
+Eg. adb push $OUT/data/nativetest64/extractorTest/extractorTest /data/local/tmp/
 
 To run the binary, follow the commands mentioned below under each module.
 
@@ -78,13 +78,13 @@
 To run the test suite for measuring performance of the SDK APIs, follow the following steps:
 
 The apk will be created at the following path:
-${OUT}/testcases/MediaBenchmarkApp/arm64/
+$OUT/testcases/MediaBenchmarkTest/arm64/
 
 To get the resorce files for the test follow instructions given in [NDK](#NDK)
 
 For installing the apk, run the command:
 ```
-adb install -f -r ${OUT}/testcases/MediaBenchmarkApp/arm64/MediaBenchmarkApp.apk
+adb install -f -r $OUT/testcases/MediaBenchmarkTest/arm64/MediaBenchmarkTest.apk
 ```
 
 For running all the tests, run the command:
@@ -145,3 +145,12 @@
 ```
 adb shell /data/local/tmp/C2DecoderTest -P /data/local/tmp/MediaBenchmark/res/
 ```
+## C2 Encoder
+
+The test encodes input stream and benchmarks the codec2 encoders available in device.
+
+Setup steps are same as [extractor](#extractor).
+
+```
+adb shell /data/local/tmp/C2EncoderTest -P /data/local/tmp/MediaBenchmark/res/
+```
diff --git a/media/tests/benchmark/src/native/common/Android.bp b/media/tests/benchmark/src/native/common/Android.bp
index babc329..f8ea25c 100644
--- a/media/tests/benchmark/src/native/common/Android.bp
+++ b/media/tests/benchmark/src/native/common/Android.bp
@@ -29,7 +29,7 @@
 
     export_include_dirs: ["."],
 
-    ldflags: ["-Wl,-Bsymbolic"]
+    ldflags: ["-Wl,-Bsymbolic"],
 }
 
 cc_defaults {
@@ -55,7 +55,7 @@
     cflags: [
         "-Wall",
         "-Werror",
-    ]
+    ],
 }
 
 cc_library_static {
@@ -66,18 +66,20 @@
 
     srcs: [
         "BenchmarkC2Common.cpp",
+        "BenchmarkCommon.cpp",
+        "Stats.cpp",
+        "utils/Timers.cpp",
     ],
 
     export_include_dirs: ["."],
 
-    ldflags: ["-Wl,-Bsymbolic"]
+    ldflags: ["-Wl,-Bsymbolic"],
 }
 
 cc_defaults {
     name: "libmediabenchmark_codec2_common-defaults",
 
     defaults: [
-        "libmediabenchmark_common-defaults",
         "libcodec2-hidl-client-defaults",
         "libmediabenchmark_soft_sanitize_all-defaults",
     ],
@@ -88,7 +90,14 @@
 
     shared_libs: [
         "libcodec2_client",
-    ]
+        "libmediandk",
+        "liblog",
+    ],
+
+    cflags: [
+        "-Wall",
+        "-Werror",
+    ],
 }
 
 // public dependency for native implementation
@@ -102,5 +111,5 @@
             "signed-integer-overflow",
         ],
         cfi: true,
-    }
+    },
 }
diff --git a/media/tests/benchmark/src/native/common/BenchmarkCommon.cpp b/media/tests/benchmark/src/native/common/BenchmarkCommon.cpp
index ab74508..cb49b8e 100644
--- a/media/tests/benchmark/src/native/common/BenchmarkCommon.cpp
+++ b/media/tests/benchmark/src/native/common/BenchmarkCommon.cpp
@@ -56,6 +56,7 @@
 
 void OnErrorCB(AMediaCodec *codec, void *userdata, media_status_t err, int32_t actionCode,
                const char *detail) {
+    (void)codec;
     ALOGE("OnErrorCB: err(%d), actionCode(%d), detail(%s)", err, actionCode, detail);
     CallBackHandle *self = (CallBackHandle *)userdata;
     self->mSawError = true;
@@ -91,7 +92,7 @@
 
     /* Configure codec with the given format*/
     const char *s = AMediaFormat_toString(format);
-    ALOGV("Input format: %s\n", s);
+    ALOGI("Input format: %s\n", s);
 
     media_status_t status = AMediaCodec_configure(codec, format, nullptr, nullptr, isEncoder);
     if (status != AMEDIA_OK) {
@@ -99,4 +100,4 @@
         return nullptr;
     }
     return codec;
-}
\ No newline at end of file
+}
diff --git a/media/tests/benchmark/src/native/common/BenchmarkCommon.h b/media/tests/benchmark/src/native/common/BenchmarkCommon.h
index 8153a86..c453a78 100644
--- a/media/tests/benchmark/src/native/common/BenchmarkCommon.h
+++ b/media/tests/benchmark/src/native/common/BenchmarkCommon.h
@@ -21,11 +21,13 @@
 #include <mutex>
 #include <queue>
 #include <thread>
+#include <iostream>
 
 #include <media/NdkMediaCodec.h>
 #include <media/NdkMediaError.h>
 
 #include "Stats.h"
+#define UNUSED(x) (void)(x)
 
 using namespace std;
 
diff --git a/media/tests/benchmark/src/native/common/Stats.cpp b/media/tests/benchmark/src/native/common/Stats.cpp
index 2d9bb31..e8b62dc 100644
--- a/media/tests/benchmark/src/native/common/Stats.cpp
+++ b/media/tests/benchmark/src/native/common/Stats.cpp
@@ -53,14 +53,14 @@
     }
 
     // Print the Stats
-    std::cout << "Input Reference : " << inputReference << endl;
-    std::cout << "Setup Time in nano sec : " << mInitTimeNs << endl;
-    std::cout << "Average Time in nano sec : " << totalTimeTakenNs / mOutputTimer.size() << endl;
-    std::cout << "Time to first frame in nano sec : " << timeToFirstFrameNs << endl;
-    std::cout << "Time taken (in nano sec) to " << operation
-              << " 1 sec of content : " << timeTakenPerSec << endl;
-    std::cout << "Total bytes " << operation << "ed : " << size << endl;
-    std::cout << "Minimum Time in nano sec : " << minTimeTakenNs << endl;
-    std::cout << "Maximum Time in nano sec : " << maxTimeTakenNs << endl;
-    std::cout << "Destroy Time in nano sec : " << mDeInitTimeNs << endl;
+    ALOGI("Input Reference : %s \n", inputReference.c_str());
+    ALOGI("Setup Time in nano sec : %" PRId64 "\n", mInitTimeNs);
+    ALOGI("Average Time in nano sec : %" PRId64 "\n", totalTimeTakenNs / mOutputTimer.size());
+    ALOGI("Time to first frame in nano sec : %" PRId64 "\n", timeToFirstFrameNs);
+    ALOGI("Time taken (in nano sec) to %s 1 sec of content : %" PRId64 "\n", operation.c_str(),
+          timeTakenPerSec);
+    ALOGI("Total bytes %sed : %d\n", operation.c_str(), size);
+    ALOGI("Minimum Time in nano sec : %" PRId64 "\n", minTimeTakenNs);
+    ALOGI("Maximum Time in nano sec : %" PRId64 "\n", maxTimeTakenNs);
+    ALOGI("Destroy Time in nano sec : %" PRId64 "\n", mDeInitTimeNs);
 }
diff --git a/media/tests/benchmark/src/native/common/Stats.h b/media/tests/benchmark/src/native/common/Stats.h
index 2f556ee..2ecf42f 100644
--- a/media/tests/benchmark/src/native/common/Stats.h
+++ b/media/tests/benchmark/src/native/common/Stats.h
@@ -18,6 +18,7 @@
 #define __STATS_H__
 
 #include <android/log.h>
+#include <inttypes.h>
 
 #ifndef ALOG
 #define ALOG(priority, tag, ...) ((void)__android_log_print(ANDROID_##priority, tag, __VA_ARGS__))
@@ -25,6 +26,12 @@
 #define ALOGI(...) ALOG(LOG_INFO, LOG_TAG, __VA_ARGS__)
 #define ALOGE(...) ALOG(LOG_ERROR, LOG_TAG, __VA_ARGS__)
 #define ALOGD(...) ALOG(LOG_DEBUG, LOG_TAG, __VA_ARGS__)
+#define ALOGW(...) ALOG(LOG_WARN, LOG_TAG, __VA_ARGS__)
+
+#ifndef LOG_NDEBUG
+#define LOG_NDEBUG 1
+#endif
+
 #if LOG_NDEBUG
 #define ALOGV(cond, ...)   ((void)0)
 #else
diff --git a/media/tests/benchmark/src/native/decoder/Android.bp b/media/tests/benchmark/src/native/decoder/Android.bp
index b5072ab..9791c11 100644
--- a/media/tests/benchmark/src/native/decoder/Android.bp
+++ b/media/tests/benchmark/src/native/decoder/Android.bp
@@ -27,24 +27,26 @@
 
     export_include_dirs: ["."],
 
-    ldflags: ["-Wl,-Bsymbolic"]
+    ldflags: ["-Wl,-Bsymbolic"],
 }
 
 cc_library_static {
     name: "libmediabenchmark_codec2_decoder",
     defaults: [
-        "libmediabenchmark_common-defaults",
         "libmediabenchmark_codec2_common-defaults",
     ],
 
-    srcs: ["C2Decoder.cpp"],
+    srcs: [
+        "C2Decoder.cpp",
+        "Decoder.cpp",
+    ],
 
     static_libs: [
         "libmediabenchmark_codec2_common",
-        "libmediabenchmark_extractor",
+        "libmediabenchmark_codec2_extractor",
     ],
 
     export_include_dirs: ["."],
 
-    ldflags: ["-Wl,-Bsymbolic"]
+    ldflags: ["-Wl,-Bsymbolic"],
 }
diff --git a/media/tests/benchmark/src/native/encoder/Android.bp b/media/tests/benchmark/src/native/encoder/Android.bp
index 239f378..8de7823 100644
--- a/media/tests/benchmark/src/native/encoder/Android.bp
+++ b/media/tests/benchmark/src/native/encoder/Android.bp
@@ -23,11 +23,31 @@
 
     srcs: ["Encoder.cpp"],
 
-    static_libs: ["libmediabenchmark_extractor",
-                  "libmediabenchmark_decoder",
+    static_libs: [
+        "libmediabenchmark_extractor",
+        "libmediabenchmark_decoder",
     ],
 
     export_include_dirs: ["."],
 
-    ldflags: ["-Wl,-Bsymbolic"]
+    ldflags: ["-Wl,-Bsymbolic"],
+}
+
+cc_library_static {
+    name: "libmediabenchmark_codec2_encoder",
+    defaults: [
+        "libmediabenchmark_codec2_common-defaults",
+    ],
+
+    srcs: ["C2Encoder.cpp"],
+
+    static_libs: [
+        "libmediabenchmark_codec2_common",
+        "libmediabenchmark_codec2_extractor",
+        "libmediabenchmark_codec2_decoder",
+    ],
+
+    export_include_dirs: ["."],
+
+    ldflags: ["-Wl,-Bsymbolic"],
 }
diff --git a/media/tests/benchmark/src/native/encoder/C2Encoder.cpp b/media/tests/benchmark/src/native/encoder/C2Encoder.cpp
new file mode 100644
index 0000000..33429ef
--- /dev/null
+++ b/media/tests/benchmark/src/native/encoder/C2Encoder.cpp
@@ -0,0 +1,264 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT 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 "C2Encoder"
+
+#include "C2Encoder.h"
+
+int32_t C2Encoder::createCodec2Component(string compName, AMediaFormat *format) {
+    ALOGV("In %s", __func__);
+    mListener.reset(new CodecListener(
+            [this](std::list<std::unique_ptr<C2Work>> &workItems) { handleWorkDone(workItems); }));
+    if (!mListener) return -1;
+
+    const char *mime = nullptr;
+    AMediaFormat_getString(format, AMEDIAFORMAT_KEY_MIME, &mime);
+    if (!mime) {
+        ALOGE("Error in AMediaFormat_getString");
+        return -1;
+    }
+    // Configure the plugin with Input properties
+    std::vector<C2Param *> configParam;
+    if (!strncmp(mime, "audio/", 6)) {
+        mIsAudioEncoder = true;
+        int32_t numChannels;
+        if (!AMediaFormat_getInt32(format, AMEDIAFORMAT_KEY_SAMPLE_RATE, &mSampleRate)) {
+            ALOGE("AMEDIAFORMAT_KEY_SAMPLE_RATE not set");
+            return -1;
+        }
+        if (!AMediaFormat_getInt32(format, AMEDIAFORMAT_KEY_CHANNEL_COUNT, &numChannels)) {
+            ALOGE("AMEDIAFORMAT_KEY_CHANNEL_COUNT not set");
+            return -1;
+        }
+        C2StreamSampleRateInfo::input sampleRateInfo(0u, mSampleRate);
+        C2StreamChannelCountInfo::input channelCountInfo(0u, numChannels);
+        configParam.push_back(&sampleRateInfo);
+        configParam.push_back(&channelCountInfo);
+    } else {
+        mIsAudioEncoder = false;
+        if (!AMediaFormat_getInt32(format, AMEDIAFORMAT_KEY_WIDTH, &mWidth)) {
+            ALOGE("AMEDIAFORMAT_KEY_WIDTH not set");
+            return -1;
+        }
+        if (!AMediaFormat_getInt32(format, AMEDIAFORMAT_KEY_HEIGHT, &mHeight)) {
+            ALOGE("AMEDIAFORMAT_KEY_HEIGHT not set");
+            return -1;
+        }
+        C2StreamPictureSizeInfo::input inputSize(0u, mWidth, mHeight);
+        configParam.push_back(&inputSize);
+
+        if (!AMediaFormat_getInt32(format, AMEDIAFORMAT_KEY_FRAME_RATE, &mFrameRate) ||
+            (mFrameRate <= 0)) {
+            mFrameRate = KDefaultFrameRate;
+        }
+    }
+
+    int64_t sTime = mStats->getCurTime();
+    mComponent = mClient->CreateComponentByName(compName.c_str(), mListener, &mClient);
+    if (mComponent == nullptr) {
+        ALOGE("Create component failed for %s", compName.c_str());
+        return -1;
+    }
+    std::vector<std::unique_ptr<C2SettingResult>> failures;
+    int32_t status = mComponent->config(configParam, C2_DONT_BLOCK, &failures);
+    if (failures.size() != 0) {
+        ALOGE("Invalid Configuration");
+        return -1;
+    }
+
+    status |= mComponent->start();
+    int64_t eTime = mStats->getCurTime();
+    int64_t timeTaken = mStats->getTimeDiff(sTime, eTime);
+    mStats->setInitTime(timeTaken);
+    return status;
+}
+
+// In encoder components, fetch the size of input buffer allocated
+int32_t C2Encoder::getInputMaxBufSize() {
+    int32_t bitStreamInfo[1] = {0};
+    std::vector<std::unique_ptr<C2Param>> inParams;
+    c2_status_t status = mComponent->query({}, {C2StreamMaxBufferSizeInfo::input::PARAM_TYPE},
+                                           C2_DONT_BLOCK, &inParams);
+    if (status != C2_OK && inParams.size() == 0) {
+        ALOGE("Query MaxBufferSizeInfo failed => %d", status);
+        return status;
+    } else {
+        size_t offset = sizeof(C2Param);
+        for (size_t i = 0; i < inParams.size(); ++i) {
+            C2Param *param = inParams[i].get();
+            bitStreamInfo[i] = *(int32_t *)((uint8_t *)param + offset);
+        }
+    }
+    mInputMaxBufSize = bitStreamInfo[0];
+    if (mInputMaxBufSize < 0) {
+        ALOGE("Invalid mInputMaxBufSize %d\n", mInputMaxBufSize);
+        return -1;
+    }
+    return status;
+}
+
+int32_t C2Encoder::encodeFrames(ifstream &eleStream, size_t inputBufferSize) {
+    ALOGV("In %s", __func__);
+    int32_t frameSize = 0;
+    if (!mIsAudioEncoder) {
+        frameSize = mWidth * mHeight * 3 / 2;
+    } else {
+        frameSize = DEFAULT_AUDIO_FRAME_SIZE;
+        if (getInputMaxBufSize() != 0) return -1;
+        if (frameSize > mInputMaxBufSize) {
+            frameSize = mInputMaxBufSize;
+        }
+    }
+    int32_t numFrames = (inputBufferSize + frameSize - 1) / frameSize;
+    // Temporary buffer to read data from the input file
+    char *data = (char *)malloc(frameSize);
+    if (!data) {
+        ALOGE("Insufficient memory to read from input file");
+        return -1;
+    }
+
+    typedef std::unique_lock<std::mutex> ULock;
+    uint64_t presentationTimeUs = 0;
+    size_t offset = 0;
+    c2_status_t status = C2_OK;
+
+    mStats->setStartTime();
+    while (numFrames > 0) {
+        std::unique_ptr<C2Work> work;
+        // Prepare C2Work
+        {
+            ULock l(mQueueLock);
+            if (mWorkQueue.empty()) mQueueCondition.wait_for(l, MAX_RETRY * TIME_OUT);
+            if (!mWorkQueue.empty()) {
+                mStats->addInputTime();
+                work.swap(mWorkQueue.front());
+                mWorkQueue.pop_front();
+            } else {
+                cout << "Wait for generating C2Work exceeded timeout" << endl;
+                return -1;
+            }
+        }
+
+        if (mIsAudioEncoder) {
+            presentationTimeUs = mNumInputFrame * frameSize * (1000000 / mSampleRate);
+        } else {
+            presentationTimeUs = mNumInputFrame * (1000000 / mFrameRate);
+        }
+        uint32_t flags = 0;
+        if (numFrames == 1) flags |= C2FrameData::FLAG_END_OF_STREAM;
+
+        work->input.flags = (C2FrameData::flags_t)flags;
+        work->input.ordinal.timestamp = presentationTimeUs;
+        work->input.ordinal.frameIndex = mNumInputFrame;
+        work->input.buffers.clear();
+
+        if (inputBufferSize - offset < frameSize) {
+            frameSize = inputBufferSize - offset;
+        }
+        eleStream.read(data, frameSize);
+        if (eleStream.gcount() != frameSize) {
+            ALOGE("read() from file failed. Incorrect bytes read");
+            return -1;
+        }
+        offset += frameSize;
+
+        if (frameSize) {
+            if (mIsAudioEncoder) {
+                std::shared_ptr<C2LinearBlock> block;
+                status = mLinearPool->fetchLinearBlock(
+                        frameSize, {C2MemoryUsage::CPU_READ, C2MemoryUsage::CPU_WRITE}, &block);
+                if (status != C2_OK || !block) {
+                    cout << "fetchLinearBlock failed : " << status << endl;
+                    return status;
+                }
+                C2WriteView view = block->map().get();
+                if (view.error() != C2_OK) {
+                    cout << "C2LinearBlock::map() failed : " << view.error() << endl;
+                    return view.error();
+                }
+
+                memcpy(view.base(), data, frameSize);
+                work->input.buffers.emplace_back(new LinearBuffer(block));
+            } else {
+                std::shared_ptr<C2GraphicBlock> block;
+                status = mGraphicPool->fetchGraphicBlock(
+                        mWidth, mHeight, HAL_PIXEL_FORMAT_YV12,
+                        {C2MemoryUsage::CPU_READ, C2MemoryUsage::CPU_WRITE}, &block);
+                if (status != C2_OK || !block) {
+                    cout << "fetchGraphicBlock failed : " << status << endl;
+                    return status;
+                }
+                C2GraphicView view = block->map().get();
+                if (view.error() != C2_OK) {
+                    cout << "C2GraphicBlock::map() failed : " << view.error() << endl;
+                    return view.error();
+                }
+
+                uint8_t *pY = view.data()[C2PlanarLayout::PLANE_Y];
+                uint8_t *pU = view.data()[C2PlanarLayout::PLANE_U];
+                uint8_t *pV = view.data()[C2PlanarLayout::PLANE_V];
+                memcpy(pY, data, mWidth * mHeight);
+                memcpy(pU, data + mWidth * mHeight, (mWidth * mHeight >> 2));
+                memcpy(pV, data + (mWidth * mHeight * 5 >> 2), mWidth * mHeight >> 2);
+                work->input.buffers.emplace_back(new GraphicBuffer(block));
+            }
+            mStats->addFrameSize(frameSize);
+        }
+
+        work->worklets.clear();
+        work->worklets.emplace_back(new C2Worklet);
+
+        std::list<std::unique_ptr<C2Work>> items;
+        items.push_back(std::move(work));
+        // queue() invokes process() function of C2 Plugin.
+        status = mComponent->queue(&items);
+        if (status != C2_OK) {
+            ALOGE("queue failed");
+            return status;
+        }
+        ALOGV("Frame #%d size = %d queued", mNumInputFrame, frameSize);
+        numFrames--;
+        mNumInputFrame++;
+    }
+    free(data);
+    return status;
+}
+
+void C2Encoder::deInitCodec() {
+    ALOGV("In %s", __func__);
+    if (!mComponent) return;
+
+    int64_t sTime = mStats->getCurTime();
+    mComponent->stop();
+    mComponent->release();
+    mComponent = nullptr;
+    int64_t eTime = mStats->getCurTime();
+    int64_t timeTaken = mStats->getTimeDiff(sTime, eTime);
+    mStats->setDeInitTime(timeTaken);
+}
+
+void C2Encoder::dumpStatistics(string inputReference, int64_t durationUs) {
+    string operation = "c2encode";
+    mStats->dumpStatistics(operation, inputReference, durationUs);
+}
+
+void C2Encoder::resetEncoder() {
+    mIsAudioEncoder = false;
+    mNumInputFrame = 0;
+    mEos = false;
+    if (mStats) mStats->reset();
+}
diff --git a/media/tests/benchmark/src/native/encoder/C2Encoder.h b/media/tests/benchmark/src/native/encoder/C2Encoder.h
new file mode 100644
index 0000000..a4ca097
--- /dev/null
+++ b/media/tests/benchmark/src/native/encoder/C2Encoder.h
@@ -0,0 +1,66 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES 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_ENCODER_H__
+#define __C2_ENCODER_H__
+
+#include <stdio.h>
+#include <algorithm>
+#include <fstream>
+
+#include "BenchmarkC2Common.h"
+
+#define DEFAULT_AUDIO_FRAME_SIZE 4096
+
+constexpr int32_t KDefaultFrameRate = 25;
+
+class C2Encoder : public BenchmarkC2Common {
+  public:
+    C2Encoder()
+        : mIsAudioEncoder(false),
+          mWidth(0),
+          mHeight(0),
+          mNumInputFrame(0),
+          mComponent(nullptr) {}
+
+    int32_t createCodec2Component(string codecName, AMediaFormat *format);
+
+    int32_t encodeFrames(ifstream &eleStream, size_t inputBufferSize);
+
+    int32_t getInputMaxBufSize();
+
+    void deInitCodec();
+
+    void dumpStatistics(string inputReference, int64_t durationUs);
+
+    void resetEncoder();
+
+  private:
+    bool mIsAudioEncoder;
+
+    int32_t mWidth;
+    int32_t mHeight;
+    int32_t mFrameRate;
+    int32_t mSampleRate;
+
+    int32_t mNumInputFrame;
+    int32_t mInputMaxBufSize;
+
+    std::shared_ptr<android::Codec2Client::Listener> mListener;
+    std::shared_ptr<android::Codec2Client::Component> mComponent;
+};
+
+#endif  // __C2_ENCODER_H__
diff --git a/media/tests/benchmark/src/native/encoder/Encoder.cpp b/media/tests/benchmark/src/native/encoder/Encoder.cpp
index a5605de..4cb52ce 100644
--- a/media/tests/benchmark/src/native/encoder/Encoder.cpp
+++ b/media/tests/benchmark/src/native/encoder/Encoder.cpp
@@ -206,7 +206,7 @@
         AMediaFormat_setInt32(mFormat, AMEDIAFORMAT_KEY_BIT_RATE, mParams.bitrate);
     }
     const char *s = AMediaFormat_toString(mFormat);
-    ALOGV("Input format: %s\n", s);
+    ALOGI("Input format: %s\n", s);
 
     int64_t sTime = mStats->getCurTime();
     mCodec = createMediaCodec(mFormat, mMime, codecName, true /*isEncoder*/);
diff --git a/media/tests/benchmark/src/native/extractor/Android.bp b/media/tests/benchmark/src/native/extractor/Android.bp
index dfd0d49..7ed9476 100644
--- a/media/tests/benchmark/src/native/extractor/Android.bp
+++ b/media/tests/benchmark/src/native/extractor/Android.bp
@@ -27,3 +27,20 @@
 
     ldflags: ["-Wl,-Bsymbolic"]
 }
+
+cc_library_static {
+    name: "libmediabenchmark_codec2_extractor",
+    defaults: [
+        "libmediabenchmark_codec2_common-defaults",
+    ],
+
+    srcs: ["Extractor.cpp"],
+
+    static_libs: [
+        "libmediabenchmark_codec2_common",
+    ],
+
+    export_include_dirs: ["."],
+
+    ldflags: ["-Wl,-Bsymbolic"]
+}
diff --git a/media/tests/benchmark/tests/Android.bp b/media/tests/benchmark/tests/Android.bp
index 128d055..f46fa4a 100644
--- a/media/tests/benchmark/tests/Android.bp
+++ b/media/tests/benchmark/tests/Android.bp
@@ -87,8 +87,25 @@
     srcs: ["C2DecoderTest.cpp"],
 
     static_libs: [
-        "libmediabenchmark_extractor",
+        "libmediabenchmark_codec2_extractor",
         "libmediabenchmark_codec2_common",
         "libmediabenchmark_codec2_decoder",
     ],
 }
+
+cc_test {
+    name: "C2EncoderTest",
+    gtest: true,
+    defaults: [
+        "libmediabenchmark_codec2_common-defaults",
+    ],
+
+    srcs: ["C2EncoderTest.cpp"],
+
+    static_libs: [
+        "libmediabenchmark_codec2_extractor",
+        "libmediabenchmark_codec2_decoder",
+        "libmediabenchmark_codec2_common",
+        "libmediabenchmark_codec2_encoder",
+    ],
+}
diff --git a/media/tests/benchmark/tests/C2EncoderTest.cpp b/media/tests/benchmark/tests/C2EncoderTest.cpp
new file mode 100644
index 0000000..7eb5ff2
--- /dev/null
+++ b/media/tests/benchmark/tests/C2EncoderTest.cpp
@@ -0,0 +1,177 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT 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 "C2EncoderTest"
+
+#include <sys/stat.h>
+#include <fstream>
+#include <iostream>
+#include <limits>
+
+#include "BenchmarkTestEnvironment.h"
+#include "C2Encoder.h"
+#include "Decoder.h"
+
+static BenchmarkTestEnvironment *gEnv = nullptr;
+
+class C2EncoderTest : public ::testing::TestWithParam<pair<string, string>> {
+  public:
+    C2EncoderTest() : mEncoder(nullptr) { setupC2EncoderTest(); }
+
+    void setupC2EncoderTest();
+
+    vector<string> mCodecList;
+    C2Encoder *mEncoder;
+};
+
+void C2EncoderTest::setupC2EncoderTest() {
+    mEncoder = new C2Encoder();
+    ASSERT_NE(mEncoder, nullptr) << "C2Encoder creation failed";
+
+    int32_t status = mEncoder->setupCodec2();
+    ASSERT_EQ(status, 0) << "Codec2 setup failed";
+
+    mCodecList = mEncoder->getSupportedComponentList(true /* isEncoder*/);
+    ASSERT_GT(mCodecList.size(), 0) << "Codec2 client didn't recognise any component";
+}
+
+TEST_P(C2EncoderTest, Codec2Encode) {
+    ALOGV("Encodes the input using codec2 framework");
+    string inputFile = gEnv->getRes() + GetParam().first;
+    FILE *inputFp = fopen(inputFile.c_str(), "rb");
+    ASSERT_NE(inputFp, nullptr) << "Unable to open input file for reading";
+
+    Decoder *decoder = new Decoder();
+    ASSERT_NE(decoder, nullptr) << "Decoder creation failed";
+
+    Extractor *extractor = decoder->getExtractor();
+    ASSERT_NE(extractor, nullptr) << "Extractor creation failed";
+
+    // Read file properties
+    struct stat buf;
+    stat(inputFile.c_str(), &buf);
+    size_t fileSize = buf.st_size;
+    int32_t fd = fileno(inputFp);
+
+    ASSERT_LE(fileSize, kMaxBufferSize)
+            << "Input file size is greater than the threshold memory dedicated to the test";
+
+    int32_t trackCount = extractor->initExtractor(fd, fileSize);
+    ASSERT_GT(trackCount, 0) << "initExtractor failed";
+
+    for (int curTrack = 0; curTrack < trackCount; curTrack++) {
+        int32_t status = extractor->setupTrackFormat(curTrack);
+        ASSERT_EQ(status, 0) << "Track Format invalid";
+
+        uint8_t *inputBuffer = (uint8_t *)malloc(fileSize);
+        ASSERT_NE(inputBuffer, nullptr) << "Insufficient memory";
+
+        vector<AMediaCodecBufferInfo> frameInfo;
+        AMediaCodecBufferInfo info;
+        uint32_t inputBufferOffset = 0;
+
+        // Get frame data
+        while (1) {
+            status = extractor->getFrameSample(info);
+            if (status || !info.size) break;
+            // copy the meta data and buffer to be passed to decoder
+            ASSERT_LE(inputBufferOffset + info.size, fileSize) << "Memory allocated not sufficient";
+
+            memcpy(inputBuffer + inputBufferOffset, extractor->getFrameBuf(), info.size);
+            frameInfo.push_back(info);
+            inputBufferOffset += info.size;
+        }
+
+        string decName = "";
+        string outputFileName = "decode.out";
+        FILE *outFp = fopen(outputFileName.c_str(), "wb");
+        ASSERT_NE(outFp, nullptr) << "Unable to open output file" << outputFileName
+                                  << " for dumping decoder's output";
+
+        decoder->setupDecoder();
+        status = decoder->decode(inputBuffer, frameInfo, decName, false /*asyncMode */, outFp);
+        ASSERT_EQ(status, AMEDIA_OK) << "Decode returned error : " << status;
+
+        // Encode the given input stream for all C2 codecs supported by device
+        AMediaFormat *format = extractor->getFormat();
+        ifstream eleStream;
+        eleStream.open(outputFileName.c_str(), ifstream::binary | ifstream::ate);
+        ASSERT_EQ(eleStream.is_open(), true) << outputFileName.c_str() << " - file not found";
+        size_t eleSize = eleStream.tellg();
+
+        for (string codecName : mCodecList) {
+            if (codecName.find(GetParam().second) != string::npos) {
+                status = mEncoder->createCodec2Component(codecName, format);
+                ASSERT_EQ(status, 0) << "Create component failed for " << codecName;
+
+                // Send the inputs to C2 Encoder and wait till all buffers are returned.
+                eleStream.seekg(0, ifstream::beg);
+                status = mEncoder->encodeFrames(eleStream, eleSize);
+                ASSERT_EQ(status, 0) << "Encoder failed for " << codecName;
+
+                mEncoder->waitOnInputConsumption();
+                ASSERT_TRUE(mEncoder->mEos) << "Test Failed. Didn't receive EOS \n";
+
+                mEncoder->deInitCodec();
+                int64_t durationUs = extractor->getClipDuration();
+                cout << "codec: " << codecName << endl;
+                mEncoder->dumpStatistics(GetParam().first, durationUs);
+                mEncoder->resetEncoder();
+            }
+        }
+
+        // Destroy the decoder for the given input
+        decoder->deInitCodec();
+        decoder->resetDecoder();
+        free(inputBuffer);
+    }
+    fclose(inputFp);
+    extractor->deInitExtractor();
+    delete decoder;
+    delete mEncoder;
+}
+
+INSTANTIATE_TEST_SUITE_P(
+        AudioEncoderTest, C2EncoderTest,
+        ::testing::Values(
+                make_pair("bbb_44100hz_2ch_128kbps_aac_30sec.mp4", "aac"),
+                make_pair("bbb_8000hz_1ch_8kbps_amrnb_30sec.3gp", "amrnb"),
+                make_pair("bbb_16000hz_1ch_9kbps_amrwb_30sec.3gp", "amrwb"),
+                make_pair("bbb_44100hz_2ch_600kbps_flac_30sec.mp4", "flac"),
+                make_pair("bbb_48000hz_2ch_100kbps_opus_30sec.webm", "opus")));
+
+INSTANTIATE_TEST_SUITE_P(
+        VideoEncoderTest, C2EncoderTest,
+        ::testing::Values(
+                make_pair("crowd_1920x1080_25fps_4000kbps_vp9.webm", "vp9"),
+                make_pair("crowd_1920x1080_25fps_4000kbps_vp8.webm", "vp8"),
+                make_pair("crowd_176x144_25fps_6000kbps_mpeg4.mp4", "mpeg4"),
+                make_pair("crowd_176x144_25fps_6000kbps_h263.3gp", "h263"),
+                make_pair("crowd_1920x1080_25fps_6700kbps_h264.ts", "avc"),
+                make_pair("crowd_1920x1080_25fps_4000kbps_h265.mkv", "hevc")));
+
+int main(int argc, char **argv) {
+    gEnv = new BenchmarkTestEnvironment();
+    ::testing::AddGlobalTestEnvironment(gEnv);
+    ::testing::InitGoogleTest(&argc, argv);
+    int status = gEnv->initFromOptions(argc, argv);
+    if (status == 0) {
+        status = RUN_ALL_TESTS();
+        ALOGV("C2 Encoder Test result = %d\n", status);
+    }
+    return status;
+}
diff --git a/media/utils/ServiceUtilities.cpp b/media/utils/ServiceUtilities.cpp
index b132782..a77311e 100644
--- a/media/utils/ServiceUtilities.cpp
+++ b/media/utils/ServiceUtilities.cpp
@@ -181,12 +181,19 @@
 }
 
 bool modifyDefaultAudioEffectsAllowed() {
+    return modifyDefaultAudioEffectsAllowed(
+        IPCThreadState::self()->getCallingPid(), IPCThreadState::self()->getCallingUid());
+}
+
+bool modifyDefaultAudioEffectsAllowed(pid_t pid, uid_t uid) {
+    if (isAudioServerUid(IPCThreadState::self()->getCallingUid())) return true;
+
     static const String16 sModifyDefaultAudioEffectsAllowed(
             "android.permission.MODIFY_DEFAULT_AUDIO_EFFECTS");
     // IMPORTANT: Use PermissionCache - not a runtime permission and may not change.
-    bool ok = PermissionCache::checkCallingPermission(sModifyDefaultAudioEffectsAllowed);
-
-    if (!ok) ALOGE("android.permission.MODIFY_DEFAULT_AUDIO_EFFECTS");
+    bool ok = PermissionCache::checkPermission(sModifyDefaultAudioEffectsAllowed, pid, uid);
+    ALOGE_IF(!ok, "%s(): android.permission.MODIFY_DEFAULT_AUDIO_EFFECTS denied for uid %d",
+            __func__, uid);
     return ok;
 }
 
diff --git a/media/utils/include/mediautils/ServiceUtilities.h b/media/utils/include/mediautils/ServiceUtilities.h
index 9e852fd..e467058 100644
--- a/media/utils/include/mediautils/ServiceUtilities.h
+++ b/media/utils/include/mediautils/ServiceUtilities.h
@@ -87,6 +87,7 @@
 bool modifyAudioRoutingAllowed();
 bool modifyAudioRoutingAllowed(pid_t pid, uid_t uid);
 bool modifyDefaultAudioEffectsAllowed();
+bool modifyDefaultAudioEffectsAllowed(pid_t pid, uid_t uid);
 bool dumpAllowed();
 bool modifyPhoneStateAllowed(pid_t pid, uid_t uid);
 bool bypassInterruptionPolicyAllowed(pid_t pid, uid_t uid);
diff --git a/services/audioflinger/AudioFlinger.cpp b/services/audioflinger/AudioFlinger.cpp
index 9756abb..0f756bb 100644
--- a/services/audioflinger/AudioFlinger.cpp
+++ b/services/audioflinger/AudioFlinger.cpp
@@ -1582,40 +1582,64 @@
 
     AutoMutex lock(mHardwareLock);
     mHardwareStatus = AUDIO_HW_GET_INPUT_BUFFER_SIZE;
-    audio_config_t config, proposed;
-    memset(&proposed, 0, sizeof(proposed));
-    proposed.sample_rate = sampleRate;
-    proposed.channel_mask = channelMask;
-    proposed.format = format;
 
     sp<DeviceHalInterface> dev = mPrimaryHardwareDev->hwDevice();
-    size_t frames = 0;
-    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;
-        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
-        // to see if the device will support it.
-        if (proposed.format != AUDIO_FORMAT_PCM_16_BIT) {
-            proposed.format = AUDIO_FORMAT_PCM_16_BIT;
-        } else if (proposed.sample_rate != 44100) { // 44.1 is claimed as must in CDD as well as
-            proposed.sample_rate = 44100;           // legacy AudioRecord.java. TODO: Query hw?
-        } else {
-            ALOGW("getInputBufferSize failed with minimum buffer size sampleRate %u, "
-                    "format %#x, channelMask 0x%X",
-                    sampleRate, format, channelMask);
-            break; // retries failed, break out of loop with frames == 0.
-        }
-    }
+    std::vector<audio_channel_mask_t> channelMasks = {channelMask};
+    if (channelMask != AUDIO_CHANNEL_IN_MONO)
+        channelMasks.push_back(AUDIO_CHANNEL_IN_MONO);
+    if (channelMask != AUDIO_CHANNEL_IN_STEREO)
+        channelMasks.push_back(AUDIO_CHANNEL_IN_STEREO);
+
+    std::vector<audio_format_t> formats = {format};
+    if (format != AUDIO_FORMAT_PCM_16_BIT)
+        formats.push_back(AUDIO_FORMAT_PCM_16_BIT);
+
+    std::vector<uint32_t> sampleRates = {sampleRate};
+    static const uint32_t SR_44100 = 44100;
+    static const uint32_t SR_48000 = 48000;
+
+    if (sampleRate != SR_48000)
+        sampleRates.push_back(SR_48000);
+    if (sampleRate != SR_44100)
+        sampleRates.push_back(SR_44100);
+
     mHardwareStatus = AUDIO_HW_IDLE;
-    if (frames > 0 && config.sample_rate != sampleRate) {
-        frames = destinationFramesPossible(frames, sampleRate, config.sample_rate);
+
+    // Change parameters of the configuration each iteration until we find a
+    // configuration that the device will support.
+    audio_config_t config = AUDIO_CONFIG_INITIALIZER;
+    for (auto testChannelMask : channelMasks) {
+        config.channel_mask = testChannelMask;
+        for (auto testFormat : formats) {
+            config.format = testFormat;
+            for (auto testSampleRate : sampleRates) {
+                config.sample_rate = testSampleRate;
+
+                size_t bytes = 0;
+                status_t result = dev->getInputBufferSize(&config, &bytes);
+                if (result != OK || bytes == 0) {
+                    continue;
+                }
+
+                if (config.sample_rate != sampleRate || config.channel_mask != channelMask ||
+                    config.format != format) {
+                    uint32_t dstChannelCount = audio_channel_count_from_in_mask(channelMask);
+                    uint32_t srcChannelCount =
+                        audio_channel_count_from_in_mask(config.channel_mask);
+                    size_t srcFrames =
+                        bytes / audio_bytes_per_frame(srcChannelCount, config.format);
+                    size_t dstFrames = destinationFramesPossible(
+                        srcFrames, config.sample_rate, sampleRate);
+                    bytes = dstFrames * audio_bytes_per_frame(dstChannelCount, format);
+                }
+                return bytes;
+            }
+        }
     }
-    return frames; // may be converted to bytes at the Java level.
+
+    ALOGW("getInputBufferSize failed with minimum buffer size sampleRate %u, "
+              "format %#x, channelMask %#x",sampleRate, format, channelMask);
+    return 0;
 }
 
 uint32_t AudioFlinger::getInputFramesLost(audio_io_handle_t ioHandle) const
@@ -2649,9 +2673,6 @@
         return 0;
     }
 
-    // Some flags are specific to framework and must not leak to the HAL.
-    flags = static_cast<audio_input_flags_t>(flags & ~AUDIO_INPUT_FRAMEWORK_FLAGS);
-
     // Audio Policy can request a specific handle for hardware hotword.
     // The goal here is not to re-open an already opened input.
     // It is to use a pre-assigned I/O handle.
@@ -2944,7 +2965,7 @@
         Mutex::Autolock _l(t->mLock);
         for (size_t j = 0; j < t->mEffectChains.size(); j++) {
             sp<EffectChain> ec = t->mEffectChains[j];
-            if (ec->sessionId() > AUDIO_SESSION_OUTPUT_MIX) {
+            if (!audio_is_global_session(ec->sessionId())) {
                 chains.push(ec);
             }
         }
@@ -2971,7 +2992,7 @@
     for (size_t i = 0; i < chains.size(); i++) {
         sp<EffectChain> ec = chains[i];
         int sessionid = ec->sessionId();
-        sp<ThreadBase> t = ec->mThread.promote();
+        sp<ThreadBase> t = ec->thread().promote();
         if (t == 0) {
             continue;
         }
@@ -2994,7 +3015,7 @@
                 effect->unPin();
                 t->removeEffect_l(effect, /*release*/ true);
                 if (effect->purgeHandles()) {
-                    t->checkSuspendOnEffectEnabled_l(effect, false, effect->sessionId());
+                    effect->checkSuspendOnEffectEnabled(false, true /*threadLocked*/);
                 }
                 removedEffects.push_back(effect);
             }
@@ -3294,6 +3315,7 @@
         int32_t priority,
         audio_io_handle_t io,
         audio_session_t sessionId,
+        const AudioDeviceTypeAddr& device __unused,
         const String16& opPackageName,
         pid_t pid,
         status_t *status,
@@ -3346,6 +3368,18 @@
             lStatus = BAD_VALUE;
             goto Exit;
         }
+    } else if (sessionId == AUDIO_SESSION_DEVICE) {
+        if (!modifyDefaultAudioEffectsAllowed(pid, callingUid)) {
+            ALOGE("%s: device effect permission denied for uid %d", __func__, callingUid);
+            lStatus = PERMISSION_DENIED;
+            goto Exit;
+        }
+        if (io != AUDIO_IO_HANDLE_NONE) {
+            ALOGE("%s: io handle should not be specified for device effect", __func__);
+            lStatus = BAD_VALUE;
+            goto Exit;
+        }
+        //TODO: add check on device ID when added to arguments
     } else {
         // general sessionId.
 
@@ -3381,7 +3415,7 @@
         // check recording permission for visualizer
         if ((memcmp(&desc.type, SL_IID_VISUALIZATION, sizeof(effect_uuid_t)) == 0) &&
             // TODO: Do we need to start/stop op - i.e. is there recording being performed?
-            !recordingAllowed(opPackageName, pid, IPCThreadState::self()->getCallingUid())) {
+            !recordingAllowed(opPackageName, pid, callingUid)) {
             lStatus = PERMISSION_DENIED;
             goto Exit;
         }
@@ -3479,7 +3513,7 @@
         sp<Client> client = registerPid(pid);
 
         // create effect on selected output thread
-        bool pinned = (sessionId > AUDIO_SESSION_OUTPUT_MIX) && isSessionAcquired_l(sessionId);
+        bool pinned = !audio_is_global_session(sessionId) && isSessionAcquired_l(sessionId);
         handle = thread->createEffect_l(client, effectClient, priority, sessionId,
                 &desc, enabled, &lStatus, pinned);
         if (lStatus != NO_ERROR && lStatus != ALREADY_EXISTS) {
@@ -3494,7 +3528,7 @@
 
     if (lStatus == NO_ERROR || lStatus == ALREADY_EXISTS) {
         // Check CPU and memory usage
-        sp<EffectModule> effect = handle->effect().promote();
+        sp<EffectBase> effect = handle->effect().promote();
         if (effect != nullptr) {
             status_t rStatus = effect->updatePolicyState();
             if (rStatus != NO_ERROR) {
@@ -3604,7 +3638,7 @@
         // if the move request is not received from audio policy manager, the effect must be
         // re-registered with the new strategy and output
         if (dstChain == 0) {
-            dstChain = effect->chain().promote();
+            dstChain = effect->callback()->chain().promote();
             if (dstChain == 0) {
                 ALOGW("moveEffectChain_l() cannot get chain from effect %p", effect.get());
                 status = NO_INIT;
@@ -3654,7 +3688,7 @@
             goto Exit;
         }
 
-        dstChain = effect->chain().promote();
+        dstChain = effect->callback()->chain().promote();
         if (dstChain == 0) {
             thread->addEffect_l(effect);
             status = INVALID_OPERATION;
diff --git a/services/audioflinger/AudioFlinger.h b/services/audioflinger/AudioFlinger.h
index 3b6bbdb..5f55ddb 100644
--- a/services/audioflinger/AudioFlinger.h
+++ b/services/audioflinger/AudioFlinger.h
@@ -232,6 +232,7 @@
                         int32_t priority,
                         audio_io_handle_t io,
                         audio_session_t sessionId,
+                        const AudioDeviceTypeAddr& device,
                         const String16& opPackageName,
                         pid_t pid,
                         status_t *status /*non-NULL*/,
@@ -532,6 +533,7 @@
     class AsyncCallbackThread;
     class Track;
     class RecordTrack;
+    class EffectBase;
     class EffectModule;
     class EffectHandle;
     class EffectChain;
diff --git a/services/audioflinger/Effects.cpp b/services/audioflinger/Effects.cpp
index 1355b1b..4d37c94 100644
--- a/services/audioflinger/Effects.cpp
+++ b/services/audioflinger/Effects.cpp
@@ -58,81 +58,115 @@
 namespace android {
 
 // ----------------------------------------------------------------------------
-//  EffectModule implementation
+//  EffectBase implementation
 // ----------------------------------------------------------------------------
 
 #undef LOG_TAG
-#define LOG_TAG "AudioFlinger::EffectModule"
+#define LOG_TAG "AudioFlinger::EffectBase"
 
-AudioFlinger::EffectModule::EffectModule(ThreadBase *thread,
-                                        const wp<AudioFlinger::EffectChain>& chain,
+AudioFlinger::EffectBase::EffectBase(const sp<AudioFlinger::EffectCallbackInterface>& callback,
                                         effect_descriptor_t *desc,
                                         int id,
                                         audio_session_t sessionId,
                                         bool pinned)
     : mPinned(pinned),
-      mThread(thread), mChain(chain), mId(id), mSessionId(sessionId),
-      mDescriptor(*desc),
-      // clear mConfig to ensure consistent initial value of buffer framecount
-      // in case buffers are associated by setInBuffer() or setOutBuffer()
-      // prior to configure().
-      mConfig{{}, {}},
-      mStatus(NO_INIT), mState(IDLE),
-      mMaxDisableWaitCnt(1), // set by configure(), should be >= 1
-      mDisableWaitCnt(0),    // set by process() and updateState()
-      mSuspended(false),
-      mOffloaded(false),
-      mAudioFlinger(thread->mAudioFlinger)
-#ifdef FLOAT_EFFECT_CHAIN
-      , mSupportsFloat(false)
-#endif
+      mCallback(callback), mId(id), mSessionId(sessionId),
+      mDescriptor(*desc)
 {
-    ALOGV("Constructor %p pinned %d", this, pinned);
-    int lStatus;
+}
 
-    // create effect engine from effect factory
-    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);
+// must be called with EffectModule::mLock held
+status_t AudioFlinger::EffectBase::setEnabled_l(bool enabled)
+{
+
+    ALOGV("setEnabled %p enabled %d", this, enabled);
+
+    if (enabled != isEnabled()) {
+        switch (mState) {
+        // going from disabled to enabled
+        case IDLE:
+            mState = STARTING;
+            break;
+        case STOPPED:
+            mState = RESTART;
+            break;
+        case STOPPING:
+            mState = ACTIVE;
+            break;
+
+        // going from enabled to disabled
+        case RESTART:
+            mState = STOPPED;
+            break;
+        case STARTING:
+            mState = IDLE;
+            break;
+        case ACTIVE:
+            mState = STOPPING;
+            break;
+        case DESTROYED:
+            return NO_ERROR; // simply ignore as we are being destroyed
+        }
+        for (size_t i = 1; i < mHandles.size(); i++) {
+            EffectHandle *h = mHandles[i];
+            if (h != NULL && !h->disconnected()) {
+                h->setEnabled(enabled);
+            }
         }
     }
-
-    if (mStatus != NO_ERROR) {
-        return;
-    }
-    lStatus = init();
-    if (lStatus < 0) {
-        mStatus = lStatus;
-        goto Error;
-    }
-
-    setOffloaded(thread->type() == ThreadBase::OFFLOAD, thread->id());
-    ALOGV("Constructor success name %s, Interface %p", mDescriptor.name, mEffectInterface.get());
-
-    return;
-Error:
-    mEffectInterface.clear();
-    ALOGV("Constructor Error %d", mStatus);
+    return NO_ERROR;
 }
 
-AudioFlinger::EffectModule::~EffectModule()
+status_t AudioFlinger::EffectBase::setEnabled(bool enabled, bool fromHandle)
 {
-    ALOGV("Destructor %p", this);
-    if (mEffectInterface != 0) {
-        char uuidStr[64];
-        AudioEffect::guidToString(&mDescriptor.uuid, uuidStr, sizeof(uuidStr));
-        ALOGW("EffectModule %p destructor called with unreleased interface, effect %s",
-                this, uuidStr);
-        release_l();
+    status_t status;
+    {
+        Mutex::Autolock _l(mLock);
+        status = setEnabled_l(enabled);
     }
-
+    if (fromHandle) {
+        if (enabled) {
+            if (status != NO_ERROR) {
+                mCallback->checkSuspendOnEffectEnabled(this, false, false /*threadLocked*/);
+            } else {
+                mCallback->onEffectEnable(this);
+            }
+        } else {
+            mCallback->onEffectDisable(this);
+        }
+    }
+    return status;
 }
 
-status_t AudioFlinger::EffectModule::addHandle(EffectHandle *handle)
+bool AudioFlinger::EffectBase::isEnabled() const
+{
+    switch (mState) {
+    case RESTART:
+    case STARTING:
+    case ACTIVE:
+        return true;
+    case IDLE:
+    case STOPPING:
+    case STOPPED:
+    case DESTROYED:
+    default:
+        return false;
+    }
+}
+
+void AudioFlinger::EffectBase::setSuspended(bool suspended)
+{
+    Mutex::Autolock _l(mLock);
+    mSuspended = suspended;
+}
+
+bool AudioFlinger::EffectBase::suspended() const
+{
+    Mutex::Autolock _l(mLock);
+    return mSuspended;
+}
+
+status_t AudioFlinger::EffectBase::addHandle(EffectHandle *handle)
 {
     status_t status;
 
@@ -171,7 +205,7 @@
     return status;
 }
 
-status_t AudioFlinger::EffectModule::updatePolicyState()
+status_t AudioFlinger::EffectBase::updatePolicyState()
 {
     status_t status = NO_ERROR;
     bool doRegister = false;
@@ -188,14 +222,8 @@
             doRegister = true;
             mPolicyRegistered = mHandles.size() > 0;
             if (mPolicyRegistered) {
-              sp <EffectChain> chain = mChain.promote();
-              sp <ThreadBase> thread = mThread.promote();
-
-              if (thread == nullptr || chain == nullptr) {
-                    return INVALID_OPERATION;
-                }
-                io = thread->id();
-                strategy = chain->strategy();
+                io = mCallback->io();
+                strategy = mCallback->strategy();
             }
         }
         // enable effect when registered according to enable state requested by controlling handle
@@ -233,13 +261,13 @@
 }
 
 
-ssize_t AudioFlinger::EffectModule::removeHandle(EffectHandle *handle)
+ssize_t AudioFlinger::EffectBase::removeHandle(EffectHandle *handle)
 {
     Mutex::Autolock _l(mLock);
     return removeHandle_l(handle);
 }
 
-ssize_t AudioFlinger::EffectModule::removeHandle_l(EffectHandle *handle)
+ssize_t AudioFlinger::EffectBase::removeHandle_l(EffectHandle *handle)
 {
     size_t size = mHandles.size();
     size_t i;
@@ -263,19 +291,15 @@
         }
     }
 
-    // Prevent calls to process() and other functions on effect interface from now on.
-    // The effect engine will be released by the destructor when the last strong reference on
-    // this object is released which can happen after next process is called.
     if (mHandles.size() == 0 && !mPinned) {
         mState = DESTROYED;
-        mEffectInterface->close();
     }
 
     return mHandles.size();
 }
 
 // must be called with EffectModule::mLock held
-AudioFlinger::EffectHandle *AudioFlinger::EffectModule::controlHandle_l()
+AudioFlinger::EffectHandle *AudioFlinger::EffectBase::controlHandle_l()
 {
     // the first valid handle in the list has control over the module
     for (size_t i = 0; i < mHandles.size(); i++) {
@@ -289,22 +313,270 @@
 }
 
 // unsafe method called when the effect parent thread has been destroyed
-ssize_t AudioFlinger::EffectModule::disconnectHandle(EffectHandle *handle, bool unpinIfLast)
+ssize_t AudioFlinger::EffectBase::disconnectHandle(EffectHandle *handle, bool unpinIfLast)
 {
     ALOGV("disconnect() %p handle %p", this, handle);
+    if (mCallback->disconnectEffectHandle(handle, unpinIfLast)) {
+        return mHandles.size();
+    }
+
     Mutex::Autolock _l(mLock);
     ssize_t numHandles = removeHandle_l(handle);
     if ((numHandles == 0) && (!mPinned || unpinIfLast)) {
-        sp<AudioFlinger> af = mAudioFlinger.promote();
-        if (af != 0) {
-            mLock.unlock();
-            af->updateOrphanEffectChains(this);
-            mLock.lock();
-        }
+        mLock.unlock();
+        mCallback->updateOrphanEffectChains(this);
+        mLock.lock();
     }
     return numHandles;
 }
 
+bool AudioFlinger::EffectBase::purgeHandles()
+{
+    bool enabled = false;
+    Mutex::Autolock _l(mLock);
+    EffectHandle *handle = controlHandle_l();
+    if (handle != NULL) {
+        enabled = handle->enabled();
+    }
+    mHandles.clear();
+    return enabled;
+}
+
+void AudioFlinger::EffectBase::checkSuspendOnEffectEnabled(bool enabled, bool threadLocked) {
+    mCallback->checkSuspendOnEffectEnabled(this, enabled, threadLocked);
+}
+
+static String8 effectFlagsToString(uint32_t flags) {
+    String8 s;
+
+    s.append("conn. mode: ");
+    switch (flags & EFFECT_FLAG_TYPE_MASK) {
+    case EFFECT_FLAG_TYPE_INSERT: s.append("insert"); break;
+    case EFFECT_FLAG_TYPE_AUXILIARY: s.append("auxiliary"); break;
+    case EFFECT_FLAG_TYPE_REPLACE: s.append("replace"); break;
+    case EFFECT_FLAG_TYPE_PRE_PROC: s.append("preproc"); break;
+    case EFFECT_FLAG_TYPE_POST_PROC: s.append("postproc"); break;
+    default: s.append("unknown/reserved"); break;
+    }
+    s.append(", ");
+
+    s.append("insert pref: ");
+    switch (flags & EFFECT_FLAG_INSERT_MASK) {
+    case EFFECT_FLAG_INSERT_ANY: s.append("any"); break;
+    case EFFECT_FLAG_INSERT_FIRST: s.append("first"); break;
+    case EFFECT_FLAG_INSERT_LAST: s.append("last"); break;
+    case EFFECT_FLAG_INSERT_EXCLUSIVE: s.append("exclusive"); break;
+    default: s.append("unknown/reserved"); break;
+    }
+    s.append(", ");
+
+    s.append("volume mgmt: ");
+    switch (flags & EFFECT_FLAG_VOLUME_MASK) {
+    case EFFECT_FLAG_VOLUME_NONE: s.append("none"); break;
+    case EFFECT_FLAG_VOLUME_CTRL: s.append("implements control"); break;
+    case EFFECT_FLAG_VOLUME_IND: s.append("requires indication"); break;
+    case EFFECT_FLAG_VOLUME_MONITOR: s.append("monitors volume"); break;
+    default: s.append("unknown/reserved"); break;
+    }
+    s.append(", ");
+
+    uint32_t devind = flags & EFFECT_FLAG_DEVICE_MASK;
+    if (devind) {
+        s.append("device indication: ");
+        switch (devind) {
+        case EFFECT_FLAG_DEVICE_IND: s.append("requires updates"); break;
+        default: s.append("unknown/reserved"); break;
+        }
+        s.append(", ");
+    }
+
+    s.append("input mode: ");
+    switch (flags & EFFECT_FLAG_INPUT_MASK) {
+    case EFFECT_FLAG_INPUT_DIRECT: s.append("direct"); break;
+    case EFFECT_FLAG_INPUT_PROVIDER: s.append("provider"); break;
+    case EFFECT_FLAG_INPUT_BOTH: s.append("direct+provider"); break;
+    default: s.append("not set"); break;
+    }
+    s.append(", ");
+
+    s.append("output mode: ");
+    switch (flags & EFFECT_FLAG_OUTPUT_MASK) {
+    case EFFECT_FLAG_OUTPUT_DIRECT: s.append("direct"); break;
+    case EFFECT_FLAG_OUTPUT_PROVIDER: s.append("provider"); break;
+    case EFFECT_FLAG_OUTPUT_BOTH: s.append("direct+provider"); break;
+    default: s.append("not set"); break;
+    }
+    s.append(", ");
+
+    uint32_t accel = flags & EFFECT_FLAG_HW_ACC_MASK;
+    if (accel) {
+        s.append("hardware acceleration: ");
+        switch (accel) {
+        case EFFECT_FLAG_HW_ACC_SIMPLE: s.append("non-tunneled"); break;
+        case EFFECT_FLAG_HW_ACC_TUNNEL: s.append("tunneled"); break;
+        default: s.append("unknown/reserved"); break;
+        }
+        s.append(", ");
+    }
+
+    uint32_t modeind = flags & EFFECT_FLAG_AUDIO_MODE_MASK;
+    if (modeind) {
+        s.append("mode indication: ");
+        switch (modeind) {
+        case EFFECT_FLAG_AUDIO_MODE_IND: s.append("required"); break;
+        default: s.append("unknown/reserved"); break;
+        }
+        s.append(", ");
+    }
+
+    uint32_t srcind = flags & EFFECT_FLAG_AUDIO_SOURCE_MASK;
+    if (srcind) {
+        s.append("source indication: ");
+        switch (srcind) {
+        case EFFECT_FLAG_AUDIO_SOURCE_IND: s.append("required"); break;
+        default: s.append("unknown/reserved"); break;
+        }
+        s.append(", ");
+    }
+
+    if (flags & EFFECT_FLAG_OFFLOAD_MASK) {
+        s.append("offloadable, ");
+    }
+
+    int len = s.length();
+    if (s.length() > 2) {
+        (void) s.lockBuffer(len);
+        s.unlockBuffer(len - 2);
+    }
+    return s;
+}
+
+void AudioFlinger::EffectBase::dump(int fd, const Vector<String16>& args __unused)
+{
+    String8 result;
+
+    result.appendFormat("\tEffect ID %d:\n", mId);
+
+    bool locked = AudioFlinger::dumpTryLock(mLock);
+    // failed to lock - AudioFlinger is probably deadlocked
+    if (!locked) {
+        result.append("\t\tCould not lock Fx mutex:\n");
+    }
+
+    result.append("\t\tSession State Registered Enabled Suspended:\n");
+    result.appendFormat("\t\t%05d   %03d   %s          %s       %s\n",
+            mSessionId, mState, mPolicyRegistered ? "y" : "n",
+            mPolicyEnabled ? "y" : "n", mSuspended ? "y" : "n");
+
+    result.append("\t\tDescriptor:\n");
+    char uuidStr[64];
+    AudioEffect::guidToString(&mDescriptor.uuid, uuidStr, sizeof(uuidStr));
+    result.appendFormat("\t\t- UUID: %s\n", uuidStr);
+    AudioEffect::guidToString(&mDescriptor.type, uuidStr, sizeof(uuidStr));
+    result.appendFormat("\t\t- TYPE: %s\n", uuidStr);
+    result.appendFormat("\t\t- apiVersion: %08X\n\t\t- flags: %08X (%s)\n",
+            mDescriptor.apiVersion,
+            mDescriptor.flags,
+            effectFlagsToString(mDescriptor.flags).string());
+    result.appendFormat("\t\t- name: %s\n",
+            mDescriptor.name);
+
+    result.appendFormat("\t\t- implementor: %s\n",
+            mDescriptor.implementor);
+
+    result.appendFormat("\t\t%zu Clients:\n", mHandles.size());
+    result.append("\t\t\t  Pid Priority Ctrl Locked client server\n");
+    char buffer[256];
+    for (size_t i = 0; i < mHandles.size(); ++i) {
+        EffectHandle *handle = mHandles[i];
+        if (handle != NULL && !handle->disconnected()) {
+            handle->dumpToBuffer(buffer, sizeof(buffer));
+            result.append(buffer);
+        }
+    }
+    if (locked) {
+        mLock.unlock();
+    }
+
+    write(fd, result.string(), result.length());
+}
+
+// ----------------------------------------------------------------------------
+//  EffectModule implementation
+// ----------------------------------------------------------------------------
+
+#undef LOG_TAG
+#define LOG_TAG "AudioFlinger::EffectModule"
+
+AudioFlinger::EffectModule::EffectModule(const sp<AudioFlinger::EffectCallbackInterface>& callback,
+                                         effect_descriptor_t *desc,
+                                         int id,
+                                         audio_session_t sessionId,
+                                         bool pinned)
+    : EffectBase(callback, desc, id, sessionId, pinned),
+      // clear mConfig to ensure consistent initial value of buffer framecount
+      // in case buffers are associated by setInBuffer() or setOutBuffer()
+      // prior to configure().
+      mConfig{{}, {}},
+      mStatus(NO_INIT),
+      mMaxDisableWaitCnt(1), // set by configure(), should be >= 1
+      mDisableWaitCnt(0),    // set by process() and updateState()
+      mOffloaded(false)
+#ifdef FLOAT_EFFECT_CHAIN
+      , mSupportsFloat(false)
+#endif
+{
+    ALOGV("Constructor %p pinned %d", this, pinned);
+    int lStatus;
+
+    // create effect engine from effect factory
+    mStatus = callback->createEffectHal(
+            &desc->uuid, sessionId, AUDIO_PORT_HANDLE_NONE, &mEffectInterface);
+    if (mStatus != NO_ERROR) {
+        return;
+    }
+    lStatus = init();
+    if (lStatus < 0) {
+        mStatus = lStatus;
+        goto Error;
+    }
+
+    setOffloaded(callback->isOffload(), callback->io());
+    ALOGV("Constructor success name %s, Interface %p", mDescriptor.name, mEffectInterface.get());
+
+    return;
+Error:
+    mEffectInterface.clear();
+    ALOGV("Constructor Error %d", mStatus);
+}
+
+AudioFlinger::EffectModule::~EffectModule()
+{
+    ALOGV("Destructor %p", this);
+    if (mEffectInterface != 0) {
+        char uuidStr[64];
+        AudioEffect::guidToString(&mDescriptor.uuid, uuidStr, sizeof(uuidStr));
+        ALOGW("EffectModule %p destructor called with unreleased interface, effect %s",
+                this, uuidStr);
+        release_l();
+    }
+
+}
+
+ssize_t AudioFlinger::EffectModule::removeHandle_l(EffectHandle *handle)
+{
+    ssize_t status = EffectBase::removeHandle_l(handle);
+
+    // Prevent calls to process() and other functions on effect interface from now on.
+    // The effect engine will be released by the destructor when the last strong reference on
+    // this object is released which can happen after next process is called.
+    if (status == 0 && !mPinned) {
+        mEffectInterface->close();
+    }
+
+    return status;
+}
+
 bool AudioFlinger::EffectModule::updateState() {
     Mutex::Autolock _l(mLock);
 
@@ -542,8 +814,7 @@
                 mConfig.inputCfg.buffer.raw != mConfig.outputCfg.buffer.raw) {
         // If an insert effect is idle and input buffer is different from output buffer,
         // accumulate input onto output
-        sp<EffectChain> chain = mChain.promote();
-        if (chain.get() != nullptr && chain->activeTrackCnt() != 0) {
+        if (mCallback->activeTrackCnt() != 0) {
             // similar handling with data_bypass above.
             if (mConfig.outputCfg.accessMode == EFFECT_BUFFER_ACCESS_ACCUMULATE) {
                 accumulateInputToOutput();
@@ -566,7 +837,6 @@
 {
     ALOGVV("configure() started");
     status_t status;
-    sp<ThreadBase> thread;
     uint32_t size;
     audio_channel_mask_t channelMask;
 
@@ -575,17 +845,11 @@
         goto exit;
     }
 
-    thread = mThread.promote();
-    if (thread == 0) {
-        status = DEAD_OBJECT;
-        goto exit;
-    }
-
     // TODO: handle configuration of effects replacing track process
     // TODO: handle configuration of input (record) SW effects above the HAL,
     // similar to output EFFECT_FLAG_TYPE_INSERT/REPLACE,
     // in which case input channel masks should be used here.
-    channelMask = thread->channelMask();
+    channelMask = mCallback->channelMask();
     mConfig.inputCfg.channels = channelMask;
     mConfig.outputCfg.channels = channelMask;
 
@@ -622,11 +886,11 @@
     mConfig.outputCfg.format = EFFECT_BUFFER_FORMAT;
 
     // Don't use sample rate for thread if effect isn't offloadable.
-    if ((thread->type() == ThreadBase::OFFLOAD) && !isOffloaded()) {
+    if (mCallback->isOffload() && !isOffloaded()) {
         mConfig.inputCfg.samplingRate = DEFAULT_OUTPUT_SAMPLE_RATE;
         ALOGV("Overriding effect input as 48kHz");
     } else {
-        mConfig.inputCfg.samplingRate = thread->sampleRate();
+        mConfig.inputCfg.samplingRate = mCallback->sampleRate();
     }
     mConfig.outputCfg.samplingRate = mConfig.inputCfg.samplingRate;
     mConfig.inputCfg.bufferProvider.cookie = NULL;
@@ -637,7 +901,7 @@
     mConfig.outputCfg.bufferProvider.releaseBuffer = NULL;
     mConfig.inputCfg.accessMode = EFFECT_BUFFER_ACCESS_READ;
     // Insert effect:
-    // - in session AUDIO_SESSION_OUTPUT_MIX or AUDIO_SESSION_OUTPUT_STAGE,
+    // - in global sessions (e.g AUDIO_SESSION_OUTPUT_MIX),
     // always overwrites output buffer: input buffer == output buffer
     // - in other sessions:
     //      last effect in the chain accumulates in output buffer: input buffer != output buffer
@@ -652,11 +916,13 @@
     }
     mConfig.inputCfg.mask = EFFECT_CONFIG_ALL;
     mConfig.outputCfg.mask = EFFECT_CONFIG_ALL;
-    mConfig.inputCfg.buffer.frameCount = thread->frameCount();
+    mConfig.inputCfg.buffer.frameCount = mCallback->frameCount();
     mConfig.outputCfg.buffer.frameCount = mConfig.inputCfg.buffer.frameCount;
 
-    ALOGV("configure() %p thread %p buffer %p framecount %zu",
-            this, thread.get(), mConfig.inputCfg.buffer.raw, mConfig.inputCfg.buffer.frameCount);
+    ALOGV("configure() %p chain %p buffer %p framecount %zu",
+            this, mCallback->chain().promote() != nullptr ? mCallback->chain().promote().get() :
+                                                            nullptr,
+              mConfig.inputCfg.buffer.raw, mConfig.inputCfg.buffer.frameCount);
 
     status_t cmdStatus;
     size = sizeof(int);
@@ -671,7 +937,7 @@
 
 #ifdef MULTICHANNEL_EFFECT_CHAIN
     if (status != NO_ERROR &&
-            thread->isOutput() &&
+            mCallback->isOutput() &&
             (mConfig.inputCfg.channels != AUDIO_CHANNEL_OUT_STEREO
                     || mConfig.outputCfg.channels != AUDIO_CHANNEL_OUT_STEREO)) {
         // Older effects may require exact STEREO position mask.
@@ -738,11 +1004,7 @@
             size = sizeof(int);
             *(int32_t *)p->data = VISUALIZER_PARAM_LATENCY;
 
-            uint32_t latency = 0;
-            PlaybackThread *pbt = thread->mAudioFlinger->checkPlaybackThread_l(thread->mId);
-            if (pbt != NULL) {
-                latency = pbt->latency_l();
-            }
+            uint32_t latency = mCallback->latency();
 
             *((int32_t *)p->data + 1)= latency;
             mEffectInterface->command(EFFECT_CMD_SET_PARAM,
@@ -789,31 +1051,20 @@
 {
     if ((mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_PRE_PROC ||
          (mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_POST_PROC) {
-        sp<ThreadBase> thread = mThread.promote();
-        if (thread != 0) {
-            sp<StreamHalInterface> stream = thread->stream();
-            if (stream != 0) {
-                status_t result = stream->addEffect(mEffectInterface);
-                ALOGE_IF(result != OK, "Error when adding effect: %d", result);
-            }
-        }
+        (void)mCallback->addEffectToHal(mEffectInterface);
     }
 }
 
 // start() must be called with PlaybackThread::mLock or EffectChain::mLock held
 status_t AudioFlinger::EffectModule::start()
 {
-    sp<EffectChain> chain;
     status_t status;
     {
         Mutex::Autolock _l(mLock);
         status = start_l();
-        if (status == NO_ERROR) {
-            chain = mChain.promote();
-        }
     }
-    if (chain != 0) {
-        chain->resetVolume_l();
+    if (status == NO_ERROR) {
+        mCallback->resetVolume();
     }
     return status;
 }
@@ -860,11 +1111,10 @@
     uint32_t size = sizeof(status_t);
 
     if (isVolumeControl() && isOffloadedOrDirect()) {
-        sp<EffectChain>chain = mChain.promote();
         // We have the EffectChain and EffectModule lock, permit a reentrant call to setVolume:
         // resetVolume_l --> setVolume_l --> EffectModule::setVolume
         mSetVolumeReentrantTid = gettid();
-        chain->resetVolume_l();
+        mCallback->resetVolume();
         mSetVolumeReentrantTid = INVALID_PID;
     }
 
@@ -877,7 +1127,7 @@
         status = cmdStatus;
     }
     if (status == NO_ERROR) {
-        status = remove_effect_from_hal_l();
+        status = removeEffectFromHal_l();
     }
     return status;
 }
@@ -886,25 +1136,18 @@
 void AudioFlinger::EffectModule::release_l()
 {
     if (mEffectInterface != 0) {
-        remove_effect_from_hal_l();
+        removeEffectFromHal_l();
         // release effect engine
         mEffectInterface->close();
         mEffectInterface.clear();
     }
 }
 
-status_t AudioFlinger::EffectModule::remove_effect_from_hal_l()
+status_t AudioFlinger::EffectModule::removeEffectFromHal_l()
 {
     if ((mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_PRE_PROC ||
              (mDescriptor.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_POST_PROC) {
-        sp<ThreadBase> thread = mThread.promote();
-        if (thread != 0) {
-            sp<StreamHalInterface> stream = thread->stream();
-            if (stream != 0) {
-                status_t result = stream->removeEffect(mEffectInterface);
-                ALOGE_IF(result != OK, "Error when removing effect: %d", result);
-            }
-        }
+        mCallback->removeEffectFromHal(mEffectInterface);
     }
     return NO_ERROR;
 }
@@ -994,70 +1237,6 @@
     return status;
 }
 
-status_t AudioFlinger::EffectModule::setEnabled(bool enabled)
-{
-    Mutex::Autolock _l(mLock);
-    return setEnabled_l(enabled);
-}
-
-// must be called with EffectModule::mLock held
-status_t AudioFlinger::EffectModule::setEnabled_l(bool enabled)
-{
-
-    ALOGV("setEnabled %p enabled %d", this, enabled);
-
-    if (enabled != isEnabled()) {
-        switch (mState) {
-        // going from disabled to enabled
-        case IDLE:
-            mState = STARTING;
-            break;
-        case STOPPED:
-            mState = RESTART;
-            break;
-        case STOPPING:
-            mState = ACTIVE;
-            break;
-
-        // going from enabled to disabled
-        case RESTART:
-            mState = STOPPED;
-            break;
-        case STARTING:
-            mState = IDLE;
-            break;
-        case ACTIVE:
-            mState = STOPPING;
-            break;
-        case DESTROYED:
-            return NO_ERROR; // simply ignore as we are being destroyed
-        }
-        for (size_t i = 1; i < mHandles.size(); i++) {
-            EffectHandle *h = mHandles[i];
-            if (h != NULL && !h->disconnected()) {
-                h->setEnabled(enabled);
-            }
-        }
-    }
-    return NO_ERROR;
-}
-
-bool AudioFlinger::EffectModule::isEnabled() const
-{
-    switch (mState) {
-    case RESTART:
-    case STARTING:
-    case ACTIVE:
-        return true;
-    case IDLE:
-    case STOPPING:
-    case STOPPED:
-    case DESTROYED:
-    default:
-        return false;
-    }
-}
-
 bool AudioFlinger::EffectModule::isProcessEnabled() const
 {
     if (mStatus != NO_ERROR) {
@@ -1080,7 +1259,7 @@
 
 bool AudioFlinger::EffectModule::isOffloadedOrDirect() const
 {
-    return (mThreadType == ThreadBase::OFFLOAD || mThreadType == ThreadBase::DIRECT);
+    return mCallback->isOffloadOrDirect();
 }
 
 bool AudioFlinger::EffectModule::isVolumeControlEnabled() const
@@ -1124,9 +1303,7 @@
                 || size > mInConversionBuffer->getSize())) {
             mInConversionBuffer.clear();
             ALOGV("%s: allocating mInConversionBuffer %zu", __func__, size);
-            sp<AudioFlinger> audioFlinger = mAudioFlinger.promote();
-            LOG_ALWAYS_FATAL_IF(audioFlinger == nullptr, "EM could not retrieved audioFlinger");
-            (void)audioFlinger->mEffectsFactoryHal->allocateBuffer(size, &mInConversionBuffer);
+            (void)mCallback->allocateHalBuffer(size, &mInConversionBuffer);
         }
         if (mInConversionBuffer.get() != nullptr) {
             mInConversionBuffer->setFrameCount(inFrameCount);
@@ -1170,9 +1347,7 @@
                 || size > mOutConversionBuffer->getSize())) {
             mOutConversionBuffer.clear();
             ALOGV("%s: allocating mOutConversionBuffer %zu", __func__, size);
-            sp<AudioFlinger> audioFlinger = mAudioFlinger.promote();
-            LOG_ALWAYS_FATAL_IF(audioFlinger == nullptr, "EM could not retrieved audioFlinger");
-            (void)audioFlinger->mEffectsFactoryHal->allocateBuffer(size, &mOutConversionBuffer);
+            (void)mCallback->allocateHalBuffer(size, &mOutConversionBuffer);
         }
         if (mOutConversionBuffer.get() != nullptr) {
             mOutConversionBuffer->setFrameCount(outFrameCount);
@@ -1220,14 +1395,10 @@
 
 void AudioFlinger::EffectChain::setVolumeForOutput_l(uint32_t left, uint32_t right)
 {
-    sp<ThreadBase> thread = mThread.promote();
-    if (thread != 0 &&
-        (thread->type() == ThreadBase::OFFLOAD || thread->type() == ThreadBase::DIRECT) &&
-        !isNonOffloadableEnabled_l()) {
-        PlaybackThread *t = (PlaybackThread *)thread.get();
+    if (mEffectCallback->isOffloadOrDirect() && !isNonOffloadableEnabled_l()) {
         float vol_l = (float)left / (1 << 24);
         float vol_r = (float)right / (1 << 24);
-        t->setVolumeForOutput_l(vol_l, vol_r);
+        mEffectCallback->setVolumeForOutput(vol_l, vol_r);
     }
 }
 
@@ -1307,30 +1478,6 @@
     return status;
 }
 
-void AudioFlinger::EffectModule::setSuspended(bool suspended)
-{
-    Mutex::Autolock _l(mLock);
-    mSuspended = suspended;
-}
-
-bool AudioFlinger::EffectModule::suspended() const
-{
-    Mutex::Autolock _l(mLock);
-    return mSuspended;
-}
-
-bool AudioFlinger::EffectModule::purgeHandles()
-{
-    bool enabled = false;
-    Mutex::Autolock _l(mLock);
-    EffectHandle *handle = controlHandle_l();
-    if (handle != NULL) {
-        enabled = handle->enabled();
-    }
-    mHandles.clear();
-    return enabled;
-}
-
 status_t AudioFlinger::EffectModule::setOffloaded(bool offloaded, audio_io_handle_t io)
 {
     Mutex::Autolock _l(mLock);
@@ -1370,111 +1517,6 @@
     return mOffloaded;
 }
 
-String8 effectFlagsToString(uint32_t flags) {
-    String8 s;
-
-    s.append("conn. mode: ");
-    switch (flags & EFFECT_FLAG_TYPE_MASK) {
-    case EFFECT_FLAG_TYPE_INSERT: s.append("insert"); break;
-    case EFFECT_FLAG_TYPE_AUXILIARY: s.append("auxiliary"); break;
-    case EFFECT_FLAG_TYPE_REPLACE: s.append("replace"); break;
-    case EFFECT_FLAG_TYPE_PRE_PROC: s.append("preproc"); break;
-    case EFFECT_FLAG_TYPE_POST_PROC: s.append("postproc"); break;
-    default: s.append("unknown/reserved"); break;
-    }
-    s.append(", ");
-
-    s.append("insert pref: ");
-    switch (flags & EFFECT_FLAG_INSERT_MASK) {
-    case EFFECT_FLAG_INSERT_ANY: s.append("any"); break;
-    case EFFECT_FLAG_INSERT_FIRST: s.append("first"); break;
-    case EFFECT_FLAG_INSERT_LAST: s.append("last"); break;
-    case EFFECT_FLAG_INSERT_EXCLUSIVE: s.append("exclusive"); break;
-    default: s.append("unknown/reserved"); break;
-    }
-    s.append(", ");
-
-    s.append("volume mgmt: ");
-    switch (flags & EFFECT_FLAG_VOLUME_MASK) {
-    case EFFECT_FLAG_VOLUME_NONE: s.append("none"); break;
-    case EFFECT_FLAG_VOLUME_CTRL: s.append("implements control"); break;
-    case EFFECT_FLAG_VOLUME_IND: s.append("requires indication"); break;
-    case EFFECT_FLAG_VOLUME_MONITOR: s.append("monitors volume"); break;
-    default: s.append("unknown/reserved"); break;
-    }
-    s.append(", ");
-
-    uint32_t devind = flags & EFFECT_FLAG_DEVICE_MASK;
-    if (devind) {
-        s.append("device indication: ");
-        switch (devind) {
-        case EFFECT_FLAG_DEVICE_IND: s.append("requires updates"); break;
-        default: s.append("unknown/reserved"); break;
-        }
-        s.append(", ");
-    }
-
-    s.append("input mode: ");
-    switch (flags & EFFECT_FLAG_INPUT_MASK) {
-    case EFFECT_FLAG_INPUT_DIRECT: s.append("direct"); break;
-    case EFFECT_FLAG_INPUT_PROVIDER: s.append("provider"); break;
-    case EFFECT_FLAG_INPUT_BOTH: s.append("direct+provider"); break;
-    default: s.append("not set"); break;
-    }
-    s.append(", ");
-
-    s.append("output mode: ");
-    switch (flags & EFFECT_FLAG_OUTPUT_MASK) {
-    case EFFECT_FLAG_OUTPUT_DIRECT: s.append("direct"); break;
-    case EFFECT_FLAG_OUTPUT_PROVIDER: s.append("provider"); break;
-    case EFFECT_FLAG_OUTPUT_BOTH: s.append("direct+provider"); break;
-    default: s.append("not set"); break;
-    }
-    s.append(", ");
-
-    uint32_t accel = flags & EFFECT_FLAG_HW_ACC_MASK;
-    if (accel) {
-        s.append("hardware acceleration: ");
-        switch (accel) {
-        case EFFECT_FLAG_HW_ACC_SIMPLE: s.append("non-tunneled"); break;
-        case EFFECT_FLAG_HW_ACC_TUNNEL: s.append("tunneled"); break;
-        default: s.append("unknown/reserved"); break;
-        }
-        s.append(", ");
-    }
-
-    uint32_t modeind = flags & EFFECT_FLAG_AUDIO_MODE_MASK;
-    if (modeind) {
-        s.append("mode indication: ");
-        switch (modeind) {
-        case EFFECT_FLAG_AUDIO_MODE_IND: s.append("required"); break;
-        default: s.append("unknown/reserved"); break;
-        }
-        s.append(", ");
-    }
-
-    uint32_t srcind = flags & EFFECT_FLAG_AUDIO_SOURCE_MASK;
-    if (srcind) {
-        s.append("source indication: ");
-        switch (srcind) {
-        case EFFECT_FLAG_AUDIO_SOURCE_IND: s.append("required"); break;
-        default: s.append("unknown/reserved"); break;
-        }
-        s.append(", ");
-    }
-
-    if (flags & EFFECT_FLAG_OFFLOAD_MASK) {
-        s.append("offloadable, ");
-    }
-
-    int len = s.length();
-    if (s.length() > 2) {
-        (void) s.lockBuffer(len);
-        s.unlockBuffer(len - 2);
-    }
-    return s;
-}
-
 static std::string dumpInOutBuffer(bool isInput, const sp<EffectBufferHalInterface> &buffer) {
     std::stringstream ss;
 
@@ -1490,38 +1532,16 @@
     return ss.str();
 }
 
-void AudioFlinger::EffectModule::dump(int fd, const Vector<String16>& args __unused)
+void AudioFlinger::EffectModule::dump(int fd, const Vector<String16>& args)
 {
+    EffectBase::dump(fd, args);
+
     String8 result;
-
-    result.appendFormat("\tEffect ID %d:\n", mId);
-
     bool locked = AudioFlinger::dumpTryLock(mLock);
-    // failed to lock - AudioFlinger is probably deadlocked
-    if (!locked) {
-        result.append("\t\tCould not lock Fx mutex:\n");
-    }
 
-    result.append("\t\tSession Status State Registered Enabled Suspended Engine:\n");
-    result.appendFormat("\t\t%05d   %03d    %03d   %s          %s       %s         %p\n",
-            mSessionId, mStatus, mState, mPolicyRegistered ? "y" : "n", mPolicyEnabled ? "y" : "n",
-            mSuspended ? "y" : "n", mEffectInterface.get());
-
-    result.append("\t\tDescriptor:\n");
-    char uuidStr[64];
-    AudioEffect::guidToString(&mDescriptor.uuid, uuidStr, sizeof(uuidStr));
-    result.appendFormat("\t\t- UUID: %s\n", uuidStr);
-    AudioEffect::guidToString(&mDescriptor.type, uuidStr, sizeof(uuidStr));
-    result.appendFormat("\t\t- TYPE: %s\n", uuidStr);
-    result.appendFormat("\t\t- apiVersion: %08X\n\t\t- flags: %08X (%s)\n",
-            mDescriptor.apiVersion,
-            mDescriptor.flags,
-            effectFlagsToString(mDescriptor.flags).string());
-    result.appendFormat("\t\t- name: %s\n",
-            mDescriptor.name);
-
-    result.appendFormat("\t\t- implementor: %s\n",
-            mDescriptor.implementor);
+    result.append("\t\tStatus Engine:\n");
+    result.appendFormat("\t\t%03d    %p\n",
+            mStatus, mEffectInterface.get());
 
     result.appendFormat("\t\t- data: %s\n", mSupportsFloat ? "float" : "int16");
 
@@ -1555,17 +1575,6 @@
             dumpInOutBuffer(false /* isInput */, mOutConversionBuffer).c_str());
 #endif
 
-    result.appendFormat("\t\t%zu Clients:\n", mHandles.size());
-    result.append("\t\t\t  Pid Priority Ctrl Locked client server\n");
-    char buffer[256];
-    for (size_t i = 0; i < mHandles.size(); ++i) {
-        EffectHandle *handle = mHandles[i];
-        if (handle != NULL && !handle->disconnected()) {
-            handle->dumpToBuffer(buffer, sizeof(buffer));
-            result.append(buffer);
-        }
-    }
-
     write(fd, result.string(), result.length());
 
     if (mEffectInterface != 0) {
@@ -1585,7 +1594,7 @@
 #undef LOG_TAG
 #define LOG_TAG "AudioFlinger::EffectHandle"
 
-AudioFlinger::EffectHandle::EffectHandle(const sp<EffectModule>& effect,
+AudioFlinger::EffectHandle::EffectHandle(const sp<EffectBase>& effect,
                                         const sp<AudioFlinger::Client>& client,
                                         const sp<IEffectClient>& effectClient,
                                         int32_t priority)
@@ -1626,7 +1635,7 @@
 {
     AutoMutex _l(mLock);
     ALOGV("enable %p", this);
-    sp<EffectModule> effect = mEffect.promote();
+    sp<EffectBase> effect = mEffect.promote();
     if (effect == 0 || mDisconnected) {
         return DEAD_OBJECT;
     }
@@ -1646,38 +1655,16 @@
         return status;
     }
 
-    sp<ThreadBase> thread = effect->thread().promote();
-    if (thread != 0) {
-        thread->checkSuspendOnEffectEnabled(effect, true, effect->sessionId());
-    }
+    effect->checkSuspendOnEffectEnabled(true, false /*threadLocked*/);
 
     // checkSuspendOnEffectEnabled() can suspend this same effect when enabled
     if (effect->suspended()) {
         return NO_ERROR;
     }
 
-    status = effect->setEnabled(true);
+    status = effect->setEnabled(true, true /*fromHandle*/);
     if (status != NO_ERROR) {
-        if (thread != 0) {
-            thread->checkSuspendOnEffectEnabled(effect, false, effect->sessionId());
-        }
         mEnabled = false;
-    } else {
-        if (thread != 0) {
-            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) {
-                    PlaybackThread *t = (PlaybackThread *)thread.get();
-                    t->invalidateTracks(AUDIO_STREAM_MUSIC);
-                }
-                if (effect->sessionId() == AUDIO_SESSION_OUTPUT_MIX) {
-                    thread->mAudioFlinger->onNonOffloadableGlobalEffectEnable();
-                }
-            }
-        }
     }
     return status;
 }
@@ -1686,7 +1673,7 @@
 {
     ALOGV("disable %p", this);
     AutoMutex _l(mLock);
-    sp<EffectModule> effect = mEffect.promote();
+    sp<EffectBase> effect = mEffect.promote();
     if (effect == 0 || mDisconnected) {
         return DEAD_OBJECT;
     }
@@ -1705,17 +1692,7 @@
         return NO_ERROR;
     }
 
-    status_t status = effect->setEnabled(false);
-
-    sp<ThreadBase> thread = effect->thread().promote();
-    if (thread != 0) {
-        thread->checkSuspendOnEffectEnabled(effect, false, effect->sessionId());
-        if (thread->type() == ThreadBase::OFFLOAD || thread->type() == ThreadBase::MMAP) {
-            Mutex::Autolock _l(thread->mLock);
-            thread->broadcast_l();
-        }
-    }
-
+    status_t status = effect->setEnabled(false, true /*fromHandle*/);
     return status;
 }
 
@@ -1737,12 +1714,9 @@
     }
     mDisconnected = true;
     {
-        sp<EffectModule> effect = mEffect.promote();
+        sp<EffectBase> effect = mEffect.promote();
         if (effect != 0) {
-            sp<ThreadBase> thread = effect->thread().promote();
-            if (thread != 0) {
-                thread->disconnectEffectHandle(this, unpinIfLast);
-            } else if (effect->disconnectHandle(this, unpinIfLast) > 0) {
+            if (effect->disconnectHandle(this, unpinIfLast) > 0) {
                 ALOGW("%s Effect handle %p disconnected after thread destruction",
                     __func__, this);
             }
@@ -1808,7 +1782,7 @@
     }
 
     AutoMutex _l(mLock);
-    sp<EffectModule> effect = mEffect.promote();
+    sp<EffectBase> effect = mEffect.promote();
     if (effect == 0 || mDisconnected) {
         return DEAD_OBJECT;
     }
@@ -1962,12 +1936,13 @@
 
 AudioFlinger::EffectChain::EffectChain(ThreadBase *thread,
                                         audio_session_t sessionId)
-    : mThread(thread), mSessionId(sessionId), mActiveTrackCnt(0), mTrackCnt(0), mTailBufferCount(0),
+    : mSessionId(sessionId), mActiveTrackCnt(0), mTrackCnt(0), mTailBufferCount(0),
       mVolumeCtrlIdx(-1), mLeftVolume(UINT_MAX), mRightVolume(UINT_MAX),
-      mNewLeftVolume(UINT_MAX), mNewRightVolume(UINT_MAX)
+      mNewLeftVolume(UINT_MAX), mNewRightVolume(UINT_MAX),
+      mEffectCallback(new EffectCallback(this, thread, thread->mAudioFlinger.get()))
 {
     mStrategy = AudioSystem::getStrategyForStream(AUDIO_STREAM_MUSIC);
-    if (thread == NULL) {
+    if (thread == nullptr) {
         return;
     }
     mMaxTailBuffers = ((kProcessTailDurationMs * thread->sampleRate()) / 1000) /
@@ -2033,43 +2008,30 @@
 void AudioFlinger::EffectChain::clearInputBuffer()
 {
     Mutex::Autolock _l(mLock);
-    sp<ThreadBase> thread = mThread.promote();
-    if (thread == 0) {
-        ALOGW("clearInputBuffer(): cannot promote mixer thread");
-        return;
-    }
-    clearInputBuffer_l(thread);
+    clearInputBuffer_l();
 }
 
 // Must be called with EffectChain::mLock locked
-void AudioFlinger::EffectChain::clearInputBuffer_l(const sp<ThreadBase>& thread)
+void AudioFlinger::EffectChain::clearInputBuffer_l()
 {
     if (mInBuffer == NULL) {
         return;
     }
     const size_t frameSize =
-            audio_bytes_per_sample(EFFECT_BUFFER_FORMAT) * thread->channelCount();
+            audio_bytes_per_sample(EFFECT_BUFFER_FORMAT) * mEffectCallback->channelCount();
 
-    memset(mInBuffer->audioBuffer()->raw, 0, thread->frameCount() * frameSize);
+    memset(mInBuffer->audioBuffer()->raw, 0, mEffectCallback->frameCount() * frameSize);
     mInBuffer->commit();
 }
 
 // Must be called with EffectChain::mLock locked
 void AudioFlinger::EffectChain::process_l()
 {
-    sp<ThreadBase> thread = mThread.promote();
-    if (thread == 0) {
-        ALOGW("process_l(): cannot promote mixer thread");
-        return;
-    }
-    bool isGlobalSession = (mSessionId == AUDIO_SESSION_OUTPUT_MIX) ||
-            (mSessionId == AUDIO_SESSION_OUTPUT_STAGE);
     // 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)
-                  && (thread->type() != ThreadBase::MMAP);
-    if (!isGlobalSession) {
+    bool doProcess = !mEffectCallback->isOffloadOrMmap();
+    if (!audio_is_global_session(mSessionId)) {
         bool tracksOnSession = (trackCnt() != 0);
 
         if (!tracksOnSession && mTailBufferCount == 0) {
@@ -2080,7 +2042,7 @@
             // if no track is active and the effect tail has not been rendered,
             // the input buffer must be cleared here as the mixer process will not do it
             if (tracksOnSession || mTailBufferCount > 0) {
-                clearInputBuffer_l(thread);
+                clearInputBuffer_l();
                 if (mTailBufferCount > 0) {
                     mTailBufferCount--;
                 }
@@ -2116,14 +2078,13 @@
 
 // createEffect_l() must be called with ThreadBase::mLock held
 status_t AudioFlinger::EffectChain::createEffect_l(sp<EffectModule>& effect,
-                                                   ThreadBase *thread,
                                                    effect_descriptor_t *desc,
                                                    int id,
                                                    audio_session_t sessionId,
                                                    bool pinned)
 {
     Mutex::Autolock _l(mLock);
-    effect = new EffectModule(thread, this, desc, id, sessionId, pinned);
+    effect = new EffectModule(mEffectCallback, desc, id, sessionId, pinned);
     status_t lStatus = effect->status();
     if (lStatus == NO_ERROR) {
         lStatus = addEffect_ll(effect);
@@ -2146,12 +2107,7 @@
     effect_descriptor_t desc = effect->desc();
     uint32_t insertPref = desc.flags & EFFECT_FLAG_INSERT_MASK;
 
-    effect->setChain(this);
-    sp<ThreadBase> thread = mThread.promote();
-    if (thread == 0) {
-        return NO_INIT;
-    }
-    effect->setThread(thread);
+    effect->setCallback(mEffectCallback);
 
     if ((desc.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY) {
         // Auxiliary effects are inserted at the beginning of mEffects vector as
@@ -2162,13 +2118,13 @@
         // 32 bit format. This is to avoid saturation in AudoMixer
         // accumulation stage. Saturation is done in EffectModule::process() before
         // calling the process in effect engine
-        size_t numSamples = thread->frameCount();
+        size_t numSamples = mEffectCallback->frameCount();
         sp<EffectBufferHalInterface> halBuffer;
 #ifdef FLOAT_EFFECT_CHAIN
-        status_t result = thread->mAudioFlinger->mEffectsFactoryHal->allocateBuffer(
+        status_t result = mEffectCallback->allocateHalBuffer(
                 numSamples * sizeof(float), &halBuffer);
 #else
-        status_t result = thread->mAudioFlinger->mEffectsFactoryHal->allocateBuffer(
+        status_t result = mEffectCallback->allocateHalBuffer(
                 numSamples * sizeof(int32_t), &halBuffer);
 #endif
         if (result != OK) return result;
@@ -2486,7 +2442,7 @@
             if (effect != 0) {
                 desc->mEffect = effect;
                 effect->setSuspended(true);
-                effect->setEnabled(false);
+                effect->setEnabled(false, false /*fromHandle*/);
             }
         }
     } else {
@@ -2644,7 +2600,7 @@
         // if effect is requested to suspended but was not yet enabled, suspend it now.
         if (desc->mEffect == 0) {
             desc->mEffect = effect;
-            effect->setEnabled(false);
+            effect->setEnabled(false, false /*fromHandle*/);
             effect->setSuspended(true);
         }
     } else {
@@ -2679,10 +2635,7 @@
 void AudioFlinger::EffectChain::setThread(const sp<ThreadBase>& thread)
 {
     Mutex::Autolock _l(mLock);
-    mThread = thread;
-    for (size_t i = 0; i < mEffects.size(); i++) {
-        mEffects[i]->setThread(thread);
-    }
+    mEffectCallback->setThread(thread.get());
 }
 
 void AudioFlinger::EffectChain::checkOutputFlagCompatibility(audio_output_flags_t *flags) const
@@ -2742,4 +2695,227 @@
     return true;
 }
 
+// EffectCallbackInterface implementation
+status_t AudioFlinger::EffectChain::EffectCallback::createEffectHal(
+        const effect_uuid_t *pEffectUuid, int32_t sessionId, int32_t deviceId,
+        sp<EffectHalInterface> *effect) {
+    status_t status = NO_INIT;
+    sp<AudioFlinger> af = mAudioFlinger.promote();
+    if (af == nullptr) {
+        return status;
+    }
+    sp<EffectsFactoryHalInterface> effectsFactory = af->getEffectsFactory();
+    if (effectsFactory != 0) {
+        status = effectsFactory->createEffect(pEffectUuid, sessionId, io(), deviceId, effect);
+    }
+    return status;
+}
+
+bool AudioFlinger::EffectChain::EffectCallback::updateOrphanEffectChains(
+        const sp<AudioFlinger::EffectBase>& effect) {
+    sp<AudioFlinger> af = mAudioFlinger.promote();
+    if (af == nullptr) {
+        return false;
+    }
+    // in EffectChain context, an EffectBase is always from an EffectModule so static cast is safe
+    return af->updateOrphanEffectChains(effect->asEffectModule());
+}
+
+status_t AudioFlinger::EffectChain::EffectCallback::allocateHalBuffer(
+        size_t size, sp<EffectBufferHalInterface>* buffer) {
+    sp<AudioFlinger> af = mAudioFlinger.promote();
+    LOG_ALWAYS_FATAL_IF(af == nullptr, "allocateHalBuffer() could not retrieved audio flinger");
+    return af->mEffectsFactoryHal->allocateBuffer(size, buffer);
+}
+
+status_t AudioFlinger::EffectChain::EffectCallback::addEffectToHal(
+        sp<EffectHalInterface> effect) {
+    status_t result = NO_INIT;
+    sp<ThreadBase> t = mThread.promote();
+    if (t == nullptr) {
+        return result;
+    }
+    sp <StreamHalInterface> st = t->stream();
+    if (st == nullptr) {
+        return result;
+    }
+    result = st->addEffect(effect);
+    ALOGE_IF(result != OK, "Error when adding effect: %d", result);
+    return result;
+}
+
+status_t AudioFlinger::EffectChain::EffectCallback::removeEffectFromHal(
+        sp<EffectHalInterface> effect) {
+    status_t result = NO_INIT;
+    sp<ThreadBase> t = mThread.promote();
+    if (t == nullptr) {
+        return result;
+    }
+    sp <StreamHalInterface> st = t->stream();
+    if (st == nullptr) {
+        return result;
+    }
+    result = st->removeEffect(effect);
+    ALOGE_IF(result != OK, "Error when removing effect: %d", result);
+    return result;
+}
+
+audio_io_handle_t AudioFlinger::EffectChain::EffectCallback::io() const {
+    sp<ThreadBase> t = mThread.promote();
+    if (t == nullptr) {
+        return AUDIO_IO_HANDLE_NONE;
+    }
+    return t->id();
+}
+
+bool AudioFlinger::EffectChain::EffectCallback::isOutput() const {
+    sp<ThreadBase> t = mThread.promote();
+    if (t == nullptr) {
+        return true;
+    }
+    return t->isOutput();
+}
+
+bool AudioFlinger::EffectChain::EffectCallback::isOffload() const {
+    sp<ThreadBase> t = mThread.promote();
+    if (t == nullptr) {
+        return false;
+    }
+    return t->type() == ThreadBase::OFFLOAD;
+}
+
+bool AudioFlinger::EffectChain::EffectCallback::isOffloadOrDirect() const {
+    sp<ThreadBase> t = mThread.promote();
+    if (t == nullptr) {
+        return false;
+    }
+    return t->type() == ThreadBase::OFFLOAD || t->type() == ThreadBase::DIRECT;
+}
+
+bool AudioFlinger::EffectChain::EffectCallback::isOffloadOrMmap() const {
+    sp<ThreadBase> t = mThread.promote();
+    if (t == nullptr) {
+        return false;
+    }
+    return t->type() == ThreadBase::OFFLOAD || t->type() == ThreadBase::MMAP;
+}
+
+uint32_t AudioFlinger::EffectChain::EffectCallback::sampleRate() const {
+    sp<ThreadBase> t = mThread.promote();
+    if (t == nullptr) {
+        return 0;
+    }
+    return t->sampleRate();
+}
+
+audio_channel_mask_t AudioFlinger::EffectChain::EffectCallback::channelMask() const {
+    sp<ThreadBase> t = mThread.promote();
+    if (t == nullptr) {
+        return AUDIO_CHANNEL_NONE;
+    }
+    return t->channelMask();
+}
+
+uint32_t AudioFlinger::EffectChain::EffectCallback::channelCount() const {
+    sp<ThreadBase> t = mThread.promote();
+    if (t == nullptr) {
+        return 0;
+    }
+    return t->channelCount();
+}
+
+size_t AudioFlinger::EffectChain::EffectCallback::frameCount() const {
+    sp<ThreadBase> t = mThread.promote();
+    if (t == nullptr) {
+        return 0;
+    }
+    return t->frameCount();
+}
+
+uint32_t AudioFlinger::EffectChain::EffectCallback::latency() const {
+    sp<ThreadBase> t = mThread.promote();
+    if (t == nullptr) {
+        return 0;
+    }
+    return t->latency_l();
+}
+
+void AudioFlinger::EffectChain::EffectCallback::setVolumeForOutput(float left, float right) const {
+    sp<ThreadBase> t = mThread.promote();
+    if (t == nullptr) {
+        return;
+    }
+    t->setVolumeForOutput_l(left, right);
+}
+
+void AudioFlinger::EffectChain::EffectCallback::checkSuspendOnEffectEnabled(
+        const sp<EffectBase>& effect, bool enabled, bool threadLocked) {
+    sp<ThreadBase> t = mThread.promote();
+    if (t == nullptr) {
+        return;
+    }
+    t->checkSuspendOnEffectEnabled(enabled, effect->sessionId(), threadLocked);
+
+    sp<EffectChain> c = mChain.promote();
+    if (c == nullptr) {
+        return;
+    }
+    // in EffectChain context, an EffectBase is always from an EffectModule so static cast is safe
+    c->checkSuspendOnEffectEnabled(effect->asEffectModule(), enabled);
+}
+
+void AudioFlinger::EffectChain::EffectCallback::onEffectEnable(const sp<EffectBase>& effect) {
+    sp<ThreadBase> t = mThread.promote();
+    if (t == nullptr) {
+        return;
+    }
+    // in EffectChain context, an EffectBase is always from an EffectModule so static cast is safe
+    t->onEffectEnable(effect->asEffectModule());
+}
+
+void AudioFlinger::EffectChain::EffectCallback::onEffectDisable(const sp<EffectBase>& effect) {
+    checkSuspendOnEffectEnabled(effect, false, false /*threadLocked*/);
+
+    sp<ThreadBase> t = mThread.promote();
+    if (t == nullptr) {
+        return;
+    }
+    t->onEffectDisable();
+}
+
+bool AudioFlinger::EffectChain::EffectCallback::disconnectEffectHandle(EffectHandle *handle,
+                                                      bool unpinIfLast) {
+    sp<ThreadBase> t = mThread.promote();
+    if (t == nullptr) {
+        return false;
+    }
+    t->disconnectEffectHandle(handle, unpinIfLast);
+    return true;
+}
+
+void AudioFlinger::EffectChain::EffectCallback::resetVolume() {
+    sp<EffectChain> c = mChain.promote();
+    if (c == nullptr) {
+        return;
+    }
+    c->resetVolume_l();
+
+}
+
+uint32_t AudioFlinger::EffectChain::EffectCallback::strategy() const {
+    sp<EffectChain> c = mChain.promote();
+    if (c == nullptr) {
+        return PRODUCT_STRATEGY_NONE;
+    }
+    return c->strategy();
+}
+
+int32_t AudioFlinger::EffectChain::EffectCallback::activeTrackCnt() const {
+    sp<EffectChain> c = mChain.promote();
+    if (c == nullptr) {
+        return 0;
+    }
+    return c->activeTrackCnt();
+}
+
 } // namespace android
diff --git a/services/audioflinger/Effects.h b/services/audioflinger/Effects.h
index dbf63c8..ea51c2c 100644
--- a/services/audioflinger/Effects.h
+++ b/services/audioflinger/Effects.h
@@ -21,34 +21,78 @@
 
 //--- Audio Effect Management
 
-// EffectModule and EffectChain classes both have their own mutex to protect
+// Interface implemented by the EffectModule parent or owner (e.g an EffectChain) to abstract
+// interactions between the EffectModule and the reset of the audio framework.
+class EffectCallbackInterface : public RefBase {
+public:
+            ~EffectCallbackInterface() override = default;
+
+    // Trivial methods usually implemented with help from ThreadBase
+    virtual audio_io_handle_t io() const = 0;
+    virtual bool isOutput() const = 0;
+    virtual bool isOffload() const = 0;
+    virtual bool isOffloadOrDirect() const = 0;
+    virtual bool isOffloadOrMmap() const = 0;
+    virtual uint32_t  sampleRate() const = 0;
+    virtual audio_channel_mask_t channelMask() const = 0;
+    virtual uint32_t channelCount() const = 0;
+    virtual size_t frameCount() const = 0;
+
+    // Non trivial methods usually implemented with help from ThreadBase:
+    //   pay attention to mutex locking order
+    virtual uint32_t latency() const { return 0; }
+    virtual status_t addEffectToHal(sp<EffectHalInterface> effect) = 0;
+    virtual status_t removeEffectFromHal(sp<EffectHalInterface> effect) = 0;
+    virtual void setVolumeForOutput(float left, float right) const = 0;
+    virtual bool disconnectEffectHandle(EffectHandle *handle, bool unpinIfLast) = 0;
+    virtual void checkSuspendOnEffectEnabled(const sp<EffectBase>& effect,
+                                             bool enabled,
+                                             bool threadLocked) = 0;
+    virtual void onEffectEnable(const sp<EffectBase>& effect) = 0;
+    virtual void onEffectDisable(const sp<EffectBase>& effect) = 0;
+
+    // Methods usually implemented with help from AudioFlinger: pay attention to mutex locking order
+    virtual status_t createEffectHal(const effect_uuid_t *pEffectUuid,
+                    int32_t sessionId, int32_t deviceId, sp<EffectHalInterface> *effect) = 0;
+    virtual status_t allocateHalBuffer(size_t size, sp<EffectBufferHalInterface>* buffer) = 0;
+    virtual bool updateOrphanEffectChains(const sp<EffectBase>& effect) = 0;
+
+    // Methods usually implemented with help from EffectChain: pay attention to mutex locking order
+    virtual uint32_t strategy() const = 0;
+    virtual int32_t activeTrackCnt() const = 0;
+    virtual void resetVolume() = 0;
+
+    virtual wp<EffectChain> chain() const = 0;
+};
+
+// EffectBase(EffectModule) and EffectChain classes both have their own mutex to protect
 // 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
+// AudioFlinger -> ThreadBase -> EffectChain -> EffectBase(EffectModule)
+// AudioHandle -> ThreadBase -> EffectChain -> EffectBase(EffectModule)
+
+// NOTE: When implementing the EffectCallbackInterface, in an EffectChain or other, it is important
+// to pay attention to this locking order as some callback methods can be called from a state where
+// EffectModule and/or EffectChain mutexes are held.
+
 // In addition, methods that lock the AudioPolicyService mutex (getOutputForEffect(),
 // 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
-// from different client threads. It keeps a list of EffectHandle objects corresponding
-// to all client applications using this effect and notifies applications of effect state,
-// control or parameter changes. It manages the activation state machine to send appropriate
-// reset, enable, disable commands to effect engine and provide volume
-// ramping when effects are activated/deactivated.
-// When controlling an auxiliary effect, the EffectModule also provides an input buffer used by
-// the attached track(s) to accumulate their auxiliary channel.
-class EffectModule : public RefBase {
+
+// The EffectBase class contains common properties, state and behavior for and EffectModule or
+// other derived classes managing an audio effect instance within the effect framework.
+// It also contains the class mutex (see comment on locking order above).
+class EffectBase : public RefBase {
 public:
-    EffectModule(ThreadBase *thread,
-                    const wp<AudioFlinger::EffectChain>& chain,
-                    effect_descriptor_t *desc,
-                    int id,
-                    audio_session_t sessionId,
-                    bool pinned);
-    virtual ~EffectModule();
+    EffectBase(const sp<EffectCallbackInterface>& callback,
+               effect_descriptor_t *desc,
+               int id,
+               audio_session_t sessionId,
+               bool pinned);
+
+    ~EffectBase() override = default;
 
     enum effect_state {
         IDLE,
@@ -60,72 +104,14 @@
         DESTROYED
     };
 
-    int         id() const { return mId; }
-    void process();
-    bool updateState();
-    status_t command(uint32_t cmdCode,
-                     uint32_t cmdSize,
-                     void *pCmdData,
-                     uint32_t *replySize,
-                     void *pReplyData);
-
-    void reset_l();
-    status_t configure();
-    status_t init();
+    int id() const { return mId; }
     effect_state state() const {
         return mState;
     }
-    uint32_t status() {
-        return mStatus;
-    }
     audio_session_t sessionId() const {
         return mSessionId;
     }
-    status_t    setEnabled(bool enabled);
-    status_t    setEnabled_l(bool enabled);
-    bool isEnabled() const;
-    bool isProcessEnabled() const;
-    bool isOffloadedOrDirect() const;
-    bool isVolumeControlEnabled() const;
-
-    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; mThreadType = thread.promote()->type(); }
-    const wp<ThreadBase>& thread() { return mThread; }
-
-    status_t addHandle(EffectHandle *handle);
-    ssize_t  disconnectHandle(EffectHandle *handle, bool unpinIfLast);
-    ssize_t removeHandle(EffectHandle *handle);
-    ssize_t removeHandle_l(EffectHandle *handle);
-
     const effect_descriptor_t& desc() const { return mDescriptor; }
-    wp<EffectChain>&     chain() { return mChain; }
-
-    status_t         setDevices(const AudioDeviceTypeAddrVector &devices);
-    status_t         setInputDevice(const AudioDeviceTypeAddr &device);
-    status_t         setVolume(uint32_t *left, uint32_t *right, bool controller);
-    status_t         setMode(audio_mode_t mode);
-    status_t         setAudioSource(audio_source_t source);
-    status_t         start();
-    status_t         stop();
-    void             setSuspended(bool suspended);
-    bool             suspended() const;
-
-    EffectHandle*    controlHandle_l();
-
-    bool             isPinned() const { return mPinned; }
-    void             unPin() { mPinned = false; }
-    bool             purgeHandles();
-    void             lock() { mLock.lock(); }
-    void             unlock() { mLock.unlock(); }
     bool             isOffloadable() const
                         { return (mDescriptor.flags & EFFECT_FLAG_OFFLOAD_SUPPORTED) != 0; }
     bool             isImplementationSoftware() const
@@ -138,18 +124,141 @@
     bool             isVolumeMonitor() const
                         { return (mDescriptor.flags & EFFECT_FLAG_VOLUME_MASK)
                             == EFFECT_FLAG_VOLUME_MONITOR; }
-    status_t         setOffloaded(bool offloaded, audio_io_handle_t io);
-    bool             isOffloaded() const;
-    void             addEffectToHal_l();
-    void             release_l();
+
+    virtual status_t setEnabled(bool enabled, bool fromHandle);
+    status_t    setEnabled_l(bool enabled);
+    bool isEnabled() const;
+
+    void             setSuspended(bool suspended);
+    bool             suspended() const;
+
+    virtual status_t command(uint32_t cmdCode __unused,
+                 uint32_t cmdSize __unused,
+                 void *pCmdData __unused,
+                 uint32_t *replySize __unused,
+                 void *pReplyData __unused) { return NO_ERROR; };
+
+    void setCallback(const sp<EffectCallbackInterface>& callback) { mCallback = callback; }
+    sp<EffectCallbackInterface>&     callback() { return mCallback; }
+
+    status_t addHandle(EffectHandle *handle);
+    ssize_t disconnectHandle(EffectHandle *handle, bool unpinIfLast);
+    ssize_t removeHandle(EffectHandle *handle);
+    virtual ssize_t removeHandle_l(EffectHandle *handle);
+    EffectHandle* controlHandle_l();
+    bool purgeHandles();
+
+    void             checkSuspendOnEffectEnabled(bool enabled, bool threadLocked);
+
+    bool             isPinned() const { return mPinned; }
+    void             unPin() { mPinned = false; }
+
+    void             lock() { mLock.lock(); }
+    void             unlock() { mLock.unlock(); }
 
     status_t         updatePolicyState();
 
+    virtual          sp<EffectModule> asEffectModule() { return nullptr; }
+
     void             dump(int fd, const Vector<String16>& args);
 
 private:
     friend class AudioFlinger;      // for mHandles
-    bool                mPinned;
+    bool             mPinned = false;
+
+    DISALLOW_COPY_AND_ASSIGN(EffectBase);
+
+mutable Mutex                 mLock;      // mutex for process, commands and handles list protection
+    sp<EffectCallbackInterface> mCallback; // parent effect chain
+    const int                 mId;        // this instance unique ID
+    const audio_session_t     mSessionId; // audio session ID
+    const effect_descriptor_t mDescriptor;// effect descriptor received from effect engine
+    effect_state              mState = IDLE; // current activation state
+    // effect is suspended: temporarily disabled by framework
+    bool                      mSuspended = false;
+
+    Vector<EffectHandle *>    mHandles;   // list of client handles
+                // First handle in mHandles has highest priority and controls the effect module
+
+    // Audio policy effect state management
+    // Mutex protecting transactions with audio policy manager as mLock cannot
+    // be held to avoid cross deadlocks with audio policy mutex
+    Mutex                     mPolicyLock;
+    // Effect is registered in APM or not
+    bool                      mPolicyRegistered = false;
+    // Effect enabled state communicated to APM. Enabled state corresponds to
+    // state requested by the EffectHandle with control
+    bool                      mPolicyEnabled = false;
+};
+
+// 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
+// from different client threads. It keeps a list of EffectHandle objects corresponding
+// to all client applications using this effect and notifies applications of effect state,
+// control or parameter changes. It manages the activation state machine to send appropriate
+// reset, enable, disable commands to effect engine and provide volume
+// ramping when effects are activated/deactivated.
+// When controlling an auxiliary effect, the EffectModule also provides an input buffer used by
+// the attached track(s) to accumulate their auxiliary channel.
+class EffectModule : public EffectBase {
+public:
+    EffectModule(const sp<EffectCallbackInterface>& callabck,
+                    effect_descriptor_t *desc,
+                    int id,
+                    audio_session_t sessionId,
+                    bool pinned);
+    virtual ~EffectModule();
+
+    void process();
+    bool updateState();
+    status_t command(uint32_t cmdCode,
+                     uint32_t cmdSize,
+                     void *pCmdData,
+                     uint32_t *replySize,
+                     void *pReplyData) override;
+
+    void reset_l();
+    status_t configure();
+    status_t init();
+
+    uint32_t status() {
+        return mStatus;
+    }
+
+    bool isProcessEnabled() const;
+    bool isOffloadedOrDirect() const;
+    bool isVolumeControlEnabled() const;
+
+    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;
+    }
+
+    ssize_t removeHandle_l(EffectHandle *handle) override;
+
+    status_t         setDevices(const AudioDeviceTypeAddrVector &devices);
+    status_t         setInputDevice(const AudioDeviceTypeAddr &device);
+    status_t         setVolume(uint32_t *left, uint32_t *right, bool controller);
+    status_t         setMode(audio_mode_t mode);
+    status_t         setAudioSource(audio_source_t source);
+    status_t         start();
+    status_t         stop();
+
+    status_t         setOffloaded(bool offloaded, audio_io_handle_t io);
+    bool             isOffloaded() const;
+    void             addEffectToHal_l();
+    void             release_l();
+
+    sp<EffectModule> asEffectModule() override { return this; }
+
+    void             dump(int fd, const Vector<String16>& args);
+
+private:
+    friend class AudioFlinger;      // for mHandles
 
     // Maximum time allocated to effect engines to complete the turn off sequence
     static const uint32_t MAX_DISABLE_TIME_MS = 10000;
@@ -158,30 +267,19 @@
 
     status_t start_l();
     status_t stop_l();
-    status_t remove_effect_from_hal_l();
+    status_t removeEffectFromHal_l();
     status_t sendSetAudioDevicesCommand(const AudioDeviceTypeAddrVector &devices, uint32_t cmdCode);
 
-mutable Mutex               mLock;      // mutex for process, commands and handles list protection
-    wp<ThreadBase>      mThread;    // parent thread
-    ThreadBase::type_t  mThreadType; // parent thread type
-    wp<EffectChain>     mChain;     // parent effect chain
-    const int           mId;        // this instance unique ID
-    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
     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
                 // First handle in mHandles has highest priority and controls the effect module
     uint32_t mMaxDisableWaitCnt;    // maximum grace period before forcing an effect off after
                                     // sending disable command.
     uint32_t mDisableWaitCnt;       // current process() calls count during disable period.
-    bool     mSuspended;            // effect is suspended: temporarily disabled by framework
     bool     mOffloaded;            // effect is currently offloaded to the audio DSP
-    wp<AudioFlinger>    mAudioFlinger;
 
 #ifdef FLOAT_EFFECT_CHAIN
     bool    mSupportsFloat;         // effect supports float processing
@@ -208,16 +306,6 @@
     static constexpr pid_t INVALID_PID = (pid_t)-1;
     // this tid is allowed to call setVolume() without acquiring the mutex.
     pid_t mSetVolumeReentrantTid = INVALID_PID;
-
-    // Audio policy effect state management
-    // Mutex protecting transactions with audio policy manager as mLock cannot
-    // be held to avoid cross deadlocks with audio policy mutex
-    Mutex   mPolicyLock;
-    // Effect is registered in APM or not
-    bool    mPolicyRegistered = false;
-    // Effect enabled state communicated to APM. Enabled state corresponds to
-    // state requested by the EffectHandle with control
-    bool    mPolicyEnabled = false;
 };
 
 // The EffectHandle class implements the IEffect interface. It provides resources
@@ -229,7 +317,7 @@
 class EffectHandle: public android::BnEffect {
 public:
 
-    EffectHandle(const sp<EffectModule>& effect,
+    EffectHandle(const sp<EffectBase>& effect,
             const sp<AudioFlinger::Client>& client,
             const sp<IEffectClient>& effectClient,
             int32_t priority);
@@ -267,9 +355,9 @@
     bool enabled() const { return mEnabled; }
 
     // Getters
-    wp<EffectModule> effect() const { return mEffect; }
+    wp<EffectBase> effect() const { return mEffect; }
     int id() const {
-        sp<EffectModule> effect = mEffect.promote();
+        sp<EffectBase> effect = mEffect.promote();
         if (effect == 0) {
             return 0;
         }
@@ -286,7 +374,7 @@
     DISALLOW_COPY_AND_ASSIGN(EffectHandle);
 
     Mutex mLock;                        // protects IEffect method calls
-    wp<EffectModule> mEffect;           // pointer to controlled EffectModule
+    wp<EffectBase> mEffect;           // pointer to controlled EffectModule
     sp<IEffectClient> mEffectClient;    // callback interface for client notifications
     /*const*/ sp<Client> mClient;       // client for shared memory allocation, see disconnect()
     sp<IMemory>         mCblkMemory;    // shared memory for control block
@@ -333,7 +421,6 @@
     }
 
     status_t createEffect_l(sp<EffectModule>& effect,
-                            ThreadBase *thread,
                             effect_descriptor_t *desc,
                             int id,
                             audio_session_t sessionId,
@@ -389,9 +476,8 @@
                               bool suspend);
     // suspend all eligible effects
     void setEffectSuspendedAll_l(bool suspend);
-    // check if effects should be suspend or restored when a given effect is enable or disabled
-    void checkSuspendOnEffectEnabled(const sp<EffectModule>& effect,
-                                          bool enabled);
+    // check if effects should be suspended or restored when a given effect is enable or disabled
+    void checkSuspendOnEffectEnabled(const sp<EffectModule>& effect, bool enabled);
 
     void clearInputBuffer();
 
@@ -416,9 +502,60 @@
     // isCompatibleWithThread_l() must be called with thread->mLock held
     bool isCompatibleWithThread_l(const sp<ThreadBase>& thread) const;
 
+    sp<EffectCallbackInterface> effectCallback() const { return mEffectCallback; }
+    wp<ThreadBase> thread() const { return mEffectCallback->thread(); }
+
     void dump(int fd, const Vector<String16>& args);
 
 private:
+
+    class EffectCallback :  public EffectCallbackInterface {
+    public:
+        EffectCallback(EffectChain *chain, ThreadBase *thread, AudioFlinger *audioFlinger)
+            : mChain(chain), mThread(thread), mAudioFlinger(audioFlinger) {}
+
+        status_t createEffectHal(const effect_uuid_t *pEffectUuid,
+               int32_t sessionId, int32_t deviceId, sp<EffectHalInterface> *effect) override;
+        status_t allocateHalBuffer(size_t size, sp<EffectBufferHalInterface>* buffer) override;
+        bool updateOrphanEffectChains(const sp<EffectBase>& effect) override;
+
+        audio_io_handle_t io() const override;
+        bool isOutput() const override;
+        bool isOffload() const override;
+        bool isOffloadOrDirect() const override;
+        bool isOffloadOrMmap() const override;
+
+        uint32_t sampleRate() const override;
+        audio_channel_mask_t channelMask() const override;
+        uint32_t channelCount() const override;
+        size_t frameCount() const override;
+        uint32_t latency() const override;
+
+        status_t addEffectToHal(sp<EffectHalInterface> effect) override;
+        status_t removeEffectFromHal(sp<EffectHalInterface> effect) override;
+        bool disconnectEffectHandle(EffectHandle *handle, bool unpinIfLast) override;
+        void setVolumeForOutput(float left, float right) const override;
+
+        // check if effects should be suspended/restored when a given effect is enable/disabled
+        void checkSuspendOnEffectEnabled(const sp<EffectBase>& effect,
+                              bool enabled, bool threadLocked) override;
+        void resetVolume() override;
+        uint32_t strategy() const override;
+        int32_t activeTrackCnt() const override;
+        void onEffectEnable(const sp<EffectBase>& effect) override;
+        void onEffectDisable(const sp<EffectBase>& effect) override;
+
+        wp<EffectChain> chain() const override { return mChain; }
+
+        wp<ThreadBase> thread() { return mThread; }
+        void setThread(ThreadBase *thread) { mThread = thread; };
+
+    private:
+        wp<EffectChain> mChain;
+        wp<ThreadBase> mThread;
+        wp<AudioFlinger> mAudioFlinger;
+    };
+
     friend class AudioFlinger;  // for mThread, mEffects
     DISALLOW_COPY_AND_ASSIGN(EffectChain);
 
@@ -444,13 +581,12 @@
 
     static bool isEffectEligibleForBtNrecSuspend(const effect_uuid_t *type);
 
-    void clearInputBuffer_l(const sp<ThreadBase>& thread);
+    void clearInputBuffer_l();
 
     void setThread(const sp<ThreadBase>& thread);
 
     void setVolumeForOutput_l(uint32_t left, uint32_t right);
 
-             wp<ThreadBase> mThread;     // parent mixer thread
     mutable  Mutex mLock;        // mutex protecting effect list
              Vector< sp<EffectModule> > mEffects; // list of effect modules
              audio_session_t mSessionId; // audio session ID
@@ -474,4 +610,6 @@
              // timeLow fields among effect type UUIDs.
              // Updated by setEffectSuspended_l() and setEffectSuspendedAll_l() only.
              KeyedVector< int, sp<SuspendedEffectDesc> > mSuspendedEffects;
+
+             const sp<EffectCallback> mEffectCallback;
 };
diff --git a/services/audioflinger/PatchPanel.cpp b/services/audioflinger/PatchPanel.cpp
index 53e2dd5..dbd761a 100644
--- a/services/audioflinger/PatchPanel.cpp
+++ b/services/audioflinger/PatchPanel.cpp
@@ -448,18 +448,6 @@
         *mPlayback.handlePtr() = AUDIO_PATCH_HANDLE_NONE;
     }
 
-    // use a pseudo LCM between input and output framecount
-    size_t playbackFrameCount = mPlayback.thread()->frameCount();
-    int playbackShift = __builtin_ctz(playbackFrameCount);
-    size_t recordFrameCount = mRecord.thread()->frameCount();
-    int shift = __builtin_ctz(recordFrameCount);
-    if (playbackShift < shift) {
-        shift = playbackShift;
-    }
-    size_t frameCount = (playbackFrameCount * recordFrameCount) >> shift;
-    ALOGV("%s() playframeCount %zu recordFrameCount %zu frameCount %zu",
-            __func__, playbackFrameCount, recordFrameCount, frameCount);
-
     // create a special record track to capture from record thread
     uint32_t channelCount = mPlayback.thread()->channelCount();
     audio_channel_mask_t inChannelMask = audio_channel_in_mask_from_count(channelCount);
@@ -503,7 +491,15 @@
     }
 
     sp<RecordThread::PatchRecord> tempRecordTrack;
+    const size_t playbackFrameCount = mPlayback.thread()->frameCount();
+    const size_t recordFrameCount = mRecord.thread()->frameCount();
+    size_t frameCount = 0;
     if ((inputFlags & AUDIO_INPUT_FLAG_DIRECT) && (outputFlags & AUDIO_OUTPUT_FLAG_DIRECT)) {
+        // PassthruPatchRecord producesBufferOnDemand, so use
+        // maximum of playback and record thread framecounts
+        frameCount = std::max(playbackFrameCount, recordFrameCount);
+        ALOGV("%s() playframeCount %zu recordFrameCount %zu frameCount %zu",
+            __func__, playbackFrameCount, recordFrameCount, frameCount);
         tempRecordTrack = new RecordThread::PassthruPatchRecord(
                                                  mRecord.thread().get(),
                                                  sampleRate,
@@ -512,6 +508,16 @@
                                                  frameCount,
                                                  inputFlags);
     } else {
+        // use a pseudo LCM between input and output framecount
+        int playbackShift = __builtin_ctz(playbackFrameCount);
+        int shift = __builtin_ctz(recordFrameCount);
+        if (playbackShift < shift) {
+            shift = playbackShift;
+        }
+        frameCount = (playbackFrameCount * recordFrameCount) >> shift;
+        ALOGV("%s() playframeCount %zu recordFrameCount %zu frameCount %zu",
+            __func__, playbackFrameCount, recordFrameCount, frameCount);
+
         tempRecordTrack = new RecordThread::PatchRecord(
                                                  mRecord.thread().get(),
                                                  sampleRate,
diff --git a/services/audioflinger/Threads.cpp b/services/audioflinger/Threads.cpp
index 4be21b1..b9afba8 100644
--- a/services/audioflinger/Threads.cpp
+++ b/services/audioflinger/Threads.cpp
@@ -1146,32 +1146,26 @@
     }
 }
 
-void AudioFlinger::ThreadBase::checkSuspendOnEffectEnabled(const sp<EffectModule>& effect,
-                                                            bool enabled,
-                                                            audio_session_t sessionId)
-{
-    Mutex::Autolock _l(mLock);
-    checkSuspendOnEffectEnabled_l(effect, enabled, sessionId);
-}
+void AudioFlinger::ThreadBase::checkSuspendOnEffectEnabled(bool enabled,
+                                                           audio_session_t sessionId,
+                                                           bool threadLocked) {
+    if (!threadLocked) {
+        mLock.lock();
+    }
 
-void AudioFlinger::ThreadBase::checkSuspendOnEffectEnabled_l(const sp<EffectModule>& effect,
-                                                            bool enabled,
-                                                            audio_session_t sessionId)
-{
     if (mType != RECORD) {
         // suspend all effects in AUDIO_SESSION_OUTPUT_MIX when enabling any effect on
         // another session. This gives the priority to well behaved effect control panels
         // and applications not using global effects.
         // Enabling post processing in AUDIO_SESSION_OUTPUT_STAGE session does not affect
         // global effects
-        if ((sessionId != AUDIO_SESSION_OUTPUT_MIX) && (sessionId != AUDIO_SESSION_OUTPUT_STAGE)) {
+        if (!audio_is_global_session(sessionId)) {
             setEffectSuspended_l(NULL, enabled, AUDIO_SESSION_OUTPUT_MIX);
         }
     }
 
-    sp<EffectChain> chain = getEffectChain_l(sessionId);
-    if (chain != 0) {
-        chain->checkSuspendOnEffectEnabled(effect, enabled);
+    if (!threadLocked) {
+        mLock.unlock();
     }
 }
 
@@ -1179,8 +1173,9 @@
 status_t AudioFlinger::RecordThread::checkEffectCompatibility_l(
         const effect_descriptor_t *desc, audio_session_t sessionId)
 {
-    // No global effect sessions on record threads
-    if (sessionId == AUDIO_SESSION_OUTPUT_MIX || sessionId == AUDIO_SESSION_OUTPUT_STAGE) {
+    // No global output effect sessions on record 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;
@@ -1254,6 +1249,13 @@
                             " on output stage session", desc->name);
                     return BAD_VALUE;
                 }
+            } else if (sessionId == AUDIO_SESSION_DEVICE) {
+                // only post processing on output stage session
+                if ((desc->flags & EFFECT_FLAG_TYPE_MASK) != EFFECT_FLAG_TYPE_POST_PROC) {
+                    ALOGW("checkEffectCompatibility_l(): non post processing effect %s not allowed"
+                            " on device session", desc->name);
+                    return BAD_VALUE;
+                }
             } else {
                 // no restriction on effects applied on non fast tracks
                 if ((hasAudioSession_l(sessionId) & ThreadBase::FAST_SESSION) == 0) {
@@ -1295,7 +1297,7 @@
             return BAD_VALUE;
         }
 #endif
-        if ((sessionId == AUDIO_SESSION_OUTPUT_STAGE) || (sessionId == AUDIO_SESSION_OUTPUT_MIX)) {
+        if (audio_is_global_session(sessionId)) {
             ALOGW("checkEffectCompatibility_l(): global effect %s on DUPLICATING"
                     " thread %s", desc->name, mThreadName);
             return BAD_VALUE;
@@ -1371,7 +1373,7 @@
         if (effect == 0) {
             effectId = mAudioFlinger->nextUniqueId(AUDIO_UNIQUE_ID_USE_EFFECT);
             // create a new effect module if none present in the chain
-            lStatus = chain->createEffect_l(effect, this, desc, effectId, sessionId, pinned);
+            lStatus = chain->createEffect_l(effect, desc, effectId, sessionId, pinned);
             if (lStatus != NO_ERROR) {
                 goto Exit;
             }
@@ -1417,11 +1419,11 @@
     sp<EffectModule> effect;
     {
         Mutex::Autolock _l(mLock);
-
-        effect = handle->effect().promote();
-        if (effect == 0) {
+        sp<EffectBase> effectBase = handle->effect().promote();
+        if (effectBase == nullptr) {
             return;
         }
+        effect = static_cast<EffectModule *>(effectBase.get());
         // restore suspended effects if the disconnected handle was enabled and the last one.
         remove = (effect->removeHandle(handle) == 0) && (!effect->isPinned() || unpinIfLast);
         if (remove) {
@@ -1431,11 +1433,34 @@
     if (remove) {
         mAudioFlinger->updateOrphanEffectChains(effect);
         if (handle->enabled()) {
-            checkSuspendOnEffectEnabled(effect, false, effect->sessionId());
+            effect->checkSuspendOnEffectEnabled(false, false /*threadLocked*/);
         }
     }
 }
 
+void AudioFlinger::ThreadBase::onEffectEnable(const sp<EffectModule>& effect) {
+    if (mType == OFFLOAD || mType == MMAP) {
+        Mutex::Autolock _l(mLock);
+        broadcast_l();
+    }
+    if (!effect->isOffloadable()) {
+        if (mType == ThreadBase::OFFLOAD) {
+            PlaybackThread *t = (PlaybackThread *)this;
+            t->invalidateTracks(AUDIO_STREAM_MUSIC);
+        }
+        if (effect->sessionId() == AUDIO_SESSION_OUTPUT_MIX) {
+            mAudioFlinger->onNonOffloadableGlobalEffectEnable();
+        }
+    }
+}
+
+void AudioFlinger::ThreadBase::onEffectDisable() {
+    if (mType == OFFLOAD || mType == MMAP) {
+        Mutex::Autolock _l(mLock);
+        broadcast_l();
+    }
+}
+
 sp<AudioFlinger::EffectModule> AudioFlinger::ThreadBase::getEffect(audio_session_t sessionId,
         int effectId)
 {
@@ -1511,7 +1536,7 @@
         detachAuxEffect_l(effect->id());
     }
 
-    sp<EffectChain> chain = effect->chain().promote();
+    sp<EffectChain> chain = effect->callback()->chain().promote();
     if (chain != 0) {
         // remove effect chain if removing last effect
         if (chain->removeEffect_l(effect, release) == 0) {
@@ -1717,7 +1742,7 @@
     mLastRecordedTimestampVerifierN = mTimestampVerifier.getN();
     mLastRecordedTimeNs = timeNs;
 
-    std::unique_ptr<MediaAnalyticsItem> item(MediaAnalyticsItem::create("audiothread"));
+    std::unique_ptr<mediametrics::Item> item(mediametrics::Item::create("audiothread"));
 
 #define MM_PREFIX "android.media.audiothread." // avoid cut-n-paste errors.
 
@@ -1825,7 +1850,7 @@
 
     // TODO: We may also match on address as well as device type for
     // AUDIO_DEVICE_OUT_BUS, AUDIO_DEVICE_OUT_ALL_A2DP, AUDIO_DEVICE_OUT_REMOTE_SUBMIX
-    if (type == MIXER || type == DIRECT) {
+    if (type == MIXER || type == DIRECT || type == OFFLOAD) {
         // TODO: This property should be ensure that only contains one single device type.
         mTimestampCorrectedDevice = (audio_devices_t)property_get_int64(
                 "audio.timestamp.corrected_output_device",
@@ -2051,6 +2076,7 @@
         { // scope for mLock
             Mutex::Autolock _l(mLock);
             for (audio_session_t session : {
+                    AUDIO_SESSION_DEVICE,
                     AUDIO_SESSION_OUTPUT_STAGE,
                     AUDIO_SESSION_OUTPUT_MIX,
                     sessionId,
@@ -3103,7 +3129,7 @@
     halOutBuffer = halInBuffer;
     effect_buffer_t *buffer = reinterpret_cast<effect_buffer_t*>(halInBuffer->externalData());
     ALOGV("addEffectChain_l() %p on thread %p for session %d", chain.get(), this, session);
-    if (session > AUDIO_SESSION_OUTPUT_MIX) {
+    if (!audio_is_global_session(session)) {
         // Only one effect chain can be present in direct output thread and it uses
         // the sink buffer as input
         if (mType != DIRECT) {
@@ -3143,8 +3169,11 @@
     chain->setThread(this);
     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_DEVICE is inserted at end of effect
+    // chains list in order to be processed last as it contains output device effects.
+    // Effect chain for session AUDIO_SESSION_OUTPUT_STAGE is inserted just before to apply post
+    // processing effects specific to an output stream before effects applied to all streams
+    // routed to a given device.
     // Effect chain for session AUDIO_SESSION_OUTPUT_MIX is inserted before
     // session AUDIO_SESSION_OUTPUT_STAGE to be processed
     // after track specific effects and before output stage.
@@ -3154,7 +3183,8 @@
     // chains list to be processed before output mix effects. Relative order between other
     // sessions is not important.
     static_assert(AUDIO_SESSION_OUTPUT_MIX == 0 &&
-            AUDIO_SESSION_OUTPUT_STAGE < AUDIO_SESSION_OUTPUT_MIX,
+            AUDIO_SESSION_OUTPUT_STAGE < AUDIO_SESSION_OUTPUT_MIX &&
+            AUDIO_SESSION_DEVICE < AUDIO_SESSION_OUTPUT_STAGE,
             "audio_session_t constants misdefined");
     size_t size = mEffectChains.size();
     size_t i = 0;
@@ -3616,7 +3646,13 @@
 
                     // Tally underrun frames as we are inserting 0s here.
                     for (const auto& track : activeTracks) {
-                        if (track->mFillingUpStatus == Track::FS_ACTIVE) {
+                        if (track->mFillingUpStatus == Track::FS_ACTIVE
+                                && !track->isStopped()
+                                && !track->isPaused()
+                                && !track->isTerminated()) {
+                            ALOGV("%s: track(%d) %s underrun due to thread sleep of %zu frames",
+                                    __func__, track->id(), track->getTrackStateAsString(),
+                                    mNormalFrameCount);
                             track->mAudioTrackServerProxy->tallyUnderrunFrames(mNormalFrameCount);
                         }
                     }
@@ -5735,7 +5771,7 @@
                 int64_t framesWritten = mBytesWritten / mFrameSize;
                 if (mStandby || !last ||
                         track->presentationComplete(framesWritten, audioHALFrames) ||
-                        track->isPaused()) {
+                        track->isPaused() || mHwPaused) {
                     if (track->isStopping_2()) {
                         track->mState = TrackBase::STOPPED;
                     }
@@ -9093,8 +9129,8 @@
         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",
+    if (audio_is_global_session(sessionId)) {
+        ALOGW("checkEffectCompatibility_l(): global effect %s on MMAP thread %s",
                 desc->name, mThreadName);
         return BAD_VALUE;
     }
@@ -9116,7 +9152,6 @@
     }
 
     return NO_ERROR;
-
 }
 
 void AudioFlinger::MmapThread::checkInvalidTracks_l()
diff --git a/services/audioflinger/Threads.h b/services/audioflinger/Threads.h
index ef7eb6e..f1adc23 100644
--- a/services/audioflinger/Threads.h
+++ b/services/audioflinger/Threads.h
@@ -271,6 +271,8 @@
                 // Called by AudioFlinger::frameCount(audio_io_handle_t output) and effects,
                 // and returns the [normal mix] buffer's frame count.
     virtual     size_t      frameCount() const = 0;
+    virtual     uint32_t    latency_l() const { return 0; }
+    virtual     void        setVolumeForOutput_l(float left __unused, float right __unused) const {}
 
                 // Return's the HAL's frame count i.e. fast mixer buffer size.
                 size_t      frameCountHAL() const { return mFrameCount; }
@@ -424,14 +426,9 @@
 
                 // check if some effects must be suspended/restored when an effect is enabled
                 // or disabled
-                void checkSuspendOnEffectEnabled(const sp<EffectModule>& effect,
-                                                 bool enabled,
-                                                 audio_session_t sessionId =
-                                                        AUDIO_SESSION_OUTPUT_MIX);
-                void checkSuspendOnEffectEnabled_l(const sp<EffectModule>& effect,
-                                                   bool enabled,
-                                                   audio_session_t sessionId =
-                                                        AUDIO_SESSION_OUTPUT_MIX);
+                void checkSuspendOnEffectEnabled(bool enabled,
+                                                 audio_session_t sessionId,
+                                                 bool threadLocked);
 
                 virtual status_t    setSyncEvent(const sp<SyncEvent>& event) = 0;
                 virtual bool        isValidSyncEvent(const sp<SyncEvent>& event) const = 0;
@@ -465,6 +462,9 @@
 
     mutable     Mutex                   mLock;
 
+                void onEffectEnable(const sp<EffectModule>& effect);
+                void onEffectDisable();
+
 protected:
 
                 // entry describing an effect being suspended in mSuspendedSessions keyed vector
@@ -814,7 +814,7 @@
                 // return estimated latency in milliseconds, as reported by HAL
                 uint32_t    latency() const;
                 // same, but lock must already be held
-                uint32_t    latency_l() const;
+                uint32_t    latency_l() const override;
 
                 // VolumeInterface
     virtual     void        setMasterVolume(float value);
@@ -824,7 +824,7 @@
     virtual     void        setStreamMute(audio_stream_type_t stream, bool muted);
     virtual     float       streamVolume(audio_stream_type_t stream) const;
 
-                void        setVolumeForOutput_l(float left, float right) const;
+                void        setVolumeForOutput_l(float left, float right) const override;
 
                 sp<Track>   createTrack_l(
                                 const sp<AudioFlinger::Client>& client,
diff --git a/services/audioflinger/TrackBase.h b/services/audioflinger/TrackBase.h
index 051f1e3..91dbfa4 100644
--- a/services/audioflinger/TrackBase.h
+++ b/services/audioflinger/TrackBase.h
@@ -202,6 +202,38 @@
            audio_format_t format() const { return mFormat; }
            int id() const { return mId; }
 
+    const char *getTrackStateAsString() const {
+        if (isTerminated()) {
+            return "TERMINATED";
+        }
+        switch (mState) {
+        case IDLE:
+            return "IDLE";
+        case STOPPING_1: // for Fast and Offload
+            return "STOPPING_1";
+        case STOPPING_2: // for Fast and Offload
+            return "STOPPING_2";
+        case STOPPED:
+            return "STOPPED";
+        case RESUMING:
+            return "RESUMING";
+        case ACTIVE:
+            return "ACTIVE";
+        case PAUSING:
+            return "PAUSING";
+        case PAUSED:
+            return "PAUSED";
+        case FLUSHED:
+            return "FLUSHED";
+        case STARTING_1: // for RecordTrack
+            return "STARTING_1";
+        case STARTING_2: // for RecordTrack
+            return "STARTING_2";
+        default:
+            return "UNKNOWN";
+        }
+    }
+
 protected:
     DISALLOW_COPY_AND_ASSIGN(TrackBase);
 
@@ -248,7 +280,7 @@
 
     // Upper case characters are final states.
     // Lower case characters are transitory.
-    const char *getTrackStateString() const {
+    const char *getTrackStateAsCodedString() const {
         if (isTerminated()) {
             return "T ";
         }
diff --git a/services/audioflinger/Tracks.cpp b/services/audioflinger/Tracks.cpp
index 23c2209..2437202 100644
--- a/services/audioflinger/Tracks.cpp
+++ b/services/audioflinger/Tracks.cpp
@@ -743,7 +743,7 @@
             (mClient == 0) ? getpid() : mClient->pid(),
             mSessionId,
             mPortId,
-            getTrackStateString(),
+            getTrackStateAsCodedString(),
             mCblk->mFlags,
 
             mFormat,
@@ -2241,7 +2241,7 @@
             (mClient == 0) ? getpid() : mClient->pid(),
             mSessionId,
             mPortId,
-            getTrackStateString(),
+            getTrackStateAsCodedString(),
             mCblk->mFlags,
 
             mFormat,
diff --git a/services/audiopolicy/AudioPolicyInterface.h b/services/audiopolicy/AudioPolicyInterface.h
index 92d8c83..c5cdc25 100644
--- a/services/audiopolicy/AudioPolicyInterface.h
+++ b/services/audiopolicy/AudioPolicyInterface.h
@@ -282,6 +282,14 @@
                                                        volume_group_t &volumeGroup) = 0;
 
     virtual bool     isCallScreenModeSupported() = 0;
+
+    virtual status_t setPreferredDeviceForStrategy(product_strategy_t strategy,
+                                                   const AudioDeviceTypeAddr &device) = 0;
+
+    virtual status_t removePreferredDeviceForStrategy(product_strategy_t strategy) = 0;
+
+    virtual status_t getPreferredDeviceForStrategy(product_strategy_t strategy,
+                                                   AudioDeviceTypeAddr &device) = 0;
 };
 
 
@@ -395,6 +403,12 @@
                                                 std::vector<effect_descriptor_t> effects,
                                                 audio_patch_handle_t patchHandle,
                                                 audio_source_t source) = 0;
+
+    // Used to notify the sound trigger module that an audio capture is about to
+    // take place. This should typically result in any active recognition
+    // sessions to be preempted on modules that do not support sound trigger
+    // recognition concurrently with audio capture.
+    virtual void setSoundTriggerCaptureState(bool active) = 0;
 };
 
 extern "C" AudioPolicyInterface* createAudioPolicyManager(AudioPolicyClientInterface *clientInterface);
diff --git a/services/audiopolicy/config/audio_policy_volumes.xml b/services/audiopolicy/config/audio_policy_volumes.xml
index 27bd3ff..1dec6f4 100644
--- a/services/audiopolicy/config/audio_policy_volumes.xml
+++ b/services/audiopolicy/config/audio_policy_volumes.xml
@@ -181,6 +181,16 @@
                                                 ref="DEFAULT_NON_MUTABLE_VOLUME_CURVE"/>
     <volume stream="AUDIO_STREAM_ACCESSIBILITY" deviceCategory="DEVICE_CATEGORY_HEARING_AID"
                                                 ref="DEFAULT_NON_MUTABLE_HEARING_AID_VOLUME_CURVE"/>
+    <volume stream="AUDIO_STREAM_ASSISTANT" deviceCategory="DEVICE_CATEGORY_HEADSET"
+                                                ref="DEFAULT_MEDIA_VOLUME_CURVE"/>
+    <volume stream="AUDIO_STREAM_ASSISTANT" deviceCategory="DEVICE_CATEGORY_SPEAKER"
+                                                ref="DEFAULT_DEVICE_CATEGORY_SPEAKER_VOLUME_CURVE"/>
+    <volume stream="AUDIO_STREAM_ASSISTANT" deviceCategory="DEVICE_CATEGORY_EARPIECE"
+                                                ref="DEFAULT_MEDIA_VOLUME_CURVE"/>
+    <volume stream="AUDIO_STREAM_ASSISTANT" deviceCategory="DEVICE_CATEGORY_EXT_MEDIA"
+                                                ref="DEFAULT_MEDIA_VOLUME_CURVE"/>
+    <volume stream="AUDIO_STREAM_ASSISTANT" deviceCategory="DEVICE_CATEGORY_HEARING_AID"
+                                                ref="DEFAULT_HEARING_AID_VOLUME_CURVE"/>
     <volume stream="AUDIO_STREAM_REROUTING" deviceCategory="DEVICE_CATEGORY_HEADSET"
                                             ref="FULL_SCALE_VOLUME_CURVE"/>
     <volume stream="AUDIO_STREAM_REROUTING" deviceCategory="DEVICE_CATEGORY_SPEAKER"
diff --git a/services/audiopolicy/config/msd_audio_policy_configuration.xml b/services/audiopolicy/config/msd_audio_policy_configuration.xml
index db17bc6..305cbe6 100644
--- a/services/audiopolicy/config/msd_audio_policy_configuration.xml
+++ b/services/audiopolicy/config/msd_audio_policy_configuration.xml
@@ -40,7 +40,7 @@
                      channelMasks="AUDIO_CHANNEL_OUT_MONO,AUDIO_CHANNEL_OUT_STEREO,AUDIO_CHANNEL_OUT_5POINT1,AUDIO_CHANNEL_OUT_7POINT1"/>
         </mixPort>
         <!-- The HW AV Sync flag is not required, but is recommended -->
-        <mixPort name="ms12 output" role="sink" flags="AUDIO_INPUT_FLAG_HW_AV_SYNC">
+        <mixPort name="ms12 output" role="sink" flags="AUDIO_INPUT_FLAG_HW_AV_SYNC|AUDIO_INPUT_FLAG_DIRECT">
             <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
                      samplingRates="48000" channelMasks="AUDIO_CHANNEL_IN_STEREO"/>
             <profile name="" format="AUDIO_FORMAT_AC3"
diff --git a/services/audiopolicy/engine/common/Android.bp b/services/audiopolicy/engine/common/Android.bp
old mode 100644
new mode 100755
index b87c71d..a1c69f2
--- a/services/audiopolicy/engine/common/Android.bp
+++ b/services/audiopolicy/engine/common/Android.bp
@@ -25,6 +25,7 @@
         "src/ProductStrategy.cpp",
         "src/VolumeCurve.cpp",
         "src/VolumeGroup.cpp",
+        "src/LastRemovableMediaDevices.cpp",
     ],
     cflags: [
         "-Wall",
diff --git a/services/audiopolicy/engine/common/include/EngineBase.h b/services/audiopolicy/engine/common/include/EngineBase.h
old mode 100644
new mode 100755
index fca9a60..7f339dc
--- a/services/audiopolicy/engine/common/include/EngineBase.h
+++ b/services/audiopolicy/engine/common/include/EngineBase.h
@@ -20,6 +20,7 @@
 #include <EngineInterface.h>
 #include <ProductStrategy.h>
 #include <VolumeGroup.h>
+#include <LastRemovableMediaDevices.h>
 
 namespace android {
 namespace audio_policy {
@@ -49,10 +50,8 @@
         return mForceUse[usage];
     }
     android::status_t setDeviceConnectionState(const sp<DeviceDescriptor> /*devDesc*/,
-                                               audio_policy_dev_state_t /*state*/) override
-    {
-        return NO_ERROR;
-    }
+                                               audio_policy_dev_state_t /*state*/) override;
+
     product_strategy_t getProductStrategyForAttributes(
             const audio_attributes_t &attr) const override;
 
@@ -86,8 +85,21 @@
 
     status_t listAudioVolumeGroups(AudioVolumeGroupVector &groups) const override;
 
+    std::vector<audio_devices_t> getLastRemovableMediaDevices(
+            device_out_group_t group = GROUP_NONE) const
+    {
+        return mLastRemovableMediaDevices.getLastRemovableMediaDevices(group);
+    }
+
     void dump(String8 *dst) const override;
 
+    status_t setPreferredDeviceForStrategy(product_strategy_t strategy,
+            const AudioDeviceTypeAddr &device) override;
+
+    status_t removePreferredDeviceForStrategy(product_strategy_t strategy) override;
+
+    status_t getPreferredDeviceForStrategy(product_strategy_t strategy,
+            AudioDeviceTypeAddr &device) const override;
 
     engineConfig::ParsingResult loadAudioPolicyEngineConfig();
 
@@ -115,11 +127,13 @@
 
     status_t restoreOriginVolumeCurve(audio_stream_type_t stream);
 
- private:
+private:
     AudioPolicyManagerObserver *mApmObserver = nullptr;
 
     ProductStrategyMap mProductStrategies;
+    ProductStrategyPreferredRoutingMap mProductStrategyPreferredDevices;
     VolumeGroupMap mVolumeGroups;
+    LastRemovableMediaDevices mLastRemovableMediaDevices;
     audio_mode_t mPhoneState = AUDIO_MODE_NORMAL;  /**< current phone state. */
 
     /** current forced use configuration. */
diff --git a/services/audiopolicy/engine/common/include/LastRemovableMediaDevices.h b/services/audiopolicy/engine/common/include/LastRemovableMediaDevices.h
new file mode 100755
index 0000000..a3053a4
--- /dev/null
+++ b/services/audiopolicy/engine/common/include/LastRemovableMediaDevices.h
@@ -0,0 +1,52 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES 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_LAST_REMOVABLE_MEDIA_DEVICES_H
+#define ANDROID_LAST_REMOVABLE_MEDIA_DEVICES_H
+
+#include <vector>
+#include <HwModule.h>
+#include <system/audio_policy.h>
+
+namespace android {
+
+typedef enum {
+    GROUP_NONE = -1,
+    GROUP_WIRED,
+    GROUP_BT_A2DP,
+    NUM_GROUP
+} device_out_group_t;
+
+class LastRemovableMediaDevices
+{
+public:
+    void setRemovableMediaDevices(sp<DeviceDescriptor> desc, audio_policy_dev_state_t state);
+    std::vector<audio_devices_t> getLastRemovableMediaDevices(
+            device_out_group_t group = GROUP_NONE) const;
+
+private:
+    struct DeviceGroupDescriptor {
+        sp<DeviceDescriptor> desc;
+        device_out_group_t group;
+    };
+    std::vector<DeviceGroupDescriptor> mMediaDevices;
+
+    device_out_group_t getDeviceOutGroup(audio_devices_t device) const;
+};
+
+} // namespace android
+
+#endif // ANDROID_LAST_REMOVABLE_MEDIA_DEVICES_H
diff --git a/services/audiopolicy/engine/common/include/ProductStrategy.h b/services/audiopolicy/engine/common/include/ProductStrategy.h
index ab8eff3..3ebe7d1 100644
--- a/services/audiopolicy/engine/common/include/ProductStrategy.h
+++ b/services/audiopolicy/engine/common/include/ProductStrategy.h
@@ -28,6 +28,7 @@
 #include <utils/String8.h>
 #include <media/AudioAttributes.h>
 #include <media/AudioContainers.h>
+#include <media/AudioPolicy.h>
 
 namespace android {
 
@@ -163,4 +164,10 @@
     product_strategy_t mDefaultStrategy = PRODUCT_STRATEGY_NONE;
 };
 
+class ProductStrategyPreferredRoutingMap : public std::map<product_strategy_t, AudioDeviceTypeAddr>
+{
+public:
+    void dump(String8 *dst, int spaces = 0) const;
+};
+
 } // namespace android
diff --git a/services/audiopolicy/engine/common/src/EngineBase.cpp b/services/audiopolicy/engine/common/src/EngineBase.cpp
index 840eb34..46b950c 100644
--- a/services/audiopolicy/engine/common/src/EngineBase.cpp
+++ b/services/audiopolicy/engine/common/src/EngineBase.cpp
@@ -63,6 +63,17 @@
     return NO_ERROR;
 }
 
+status_t EngineBase::setDeviceConnectionState(const sp<DeviceDescriptor> devDesc,
+                                              audio_policy_dev_state_t state)
+{
+    audio_devices_t deviceType = devDesc->type();
+    if ((deviceType != AUDIO_DEVICE_NONE) && audio_is_output_device(deviceType)) {
+        mLastRemovableMediaDevices.setRemovableMediaDevices(devDesc, state);
+    }
+
+    return NO_ERROR;
+}
+
 product_strategy_t EngineBase::getProductStrategyForAttributes(const audio_attributes_t &attr) const
 {
     return mProductStrategies.getProductStrategyForAttributes(attr);
@@ -95,48 +106,33 @@
 
 engineConfig::ParsingResult EngineBase::loadAudioPolicyEngineConfig()
 {
-    auto loadProductStrategies =
-            [](auto& strategyConfigs, auto& productStrategies, auto& volumeGroups) {
-        for (auto& strategyConfig : strategyConfigs) {
-            sp<ProductStrategy> strategy = new ProductStrategy(strategyConfig.name);
-            for (const auto &group : strategyConfig.attributesGroups) {
-                const auto &iter = std::find_if(begin(volumeGroups), end(volumeGroups),
-                                         [&group](const auto &volumeGroup) {
-                        return group.volumeGroup == volumeGroup.second->getName(); });
-                ALOG_ASSERT(iter != end(volumeGroups), "Invalid Volume Group Name %s",
-                            group.volumeGroup.c_str());
-                if (group.stream != AUDIO_STREAM_DEFAULT) {
-                    iter->second->addSupportedStream(group.stream);
-                }
-                for (const auto &attr : group.attributesVect) {
-                    strategy->addAttributes({group.stream, iter->second->getId(), attr});
-                    iter->second->addSupportedAttributes(attr);
-                }
-            }
-            product_strategy_t strategyId = strategy->getId();
-            productStrategies[strategyId] = strategy;
-        }
-    };
-    auto loadVolumeGroups = [](auto &volumeConfigs, auto &volumeGroups) {
-        for (auto &volumeConfig : volumeConfigs) {
-            sp<VolumeGroup> volumeGroup = new VolumeGroup(volumeConfig.name, volumeConfig.indexMin,
-                                                          volumeConfig.indexMax);
-            volumeGroups[volumeGroup->getId()] = volumeGroup;
+    auto loadVolumeConfig = [](auto &volumeGroups, auto &volumeConfig) {
+        sp<VolumeGroup> volumeGroup = new VolumeGroup(volumeConfig.name, volumeConfig.indexMin,
+                                                      volumeConfig.indexMax);
+        volumeGroups[volumeGroup->getId()] = volumeGroup;
 
-            for (auto &configCurve : volumeConfig.volumeCurves) {
-                device_category deviceCat = DEVICE_CATEGORY_SPEAKER;
-                if (!DeviceCategoryConverter::fromString(configCurve.deviceCategory, deviceCat)) {
-                    ALOGE("%s: Invalid %s", __FUNCTION__, configCurve.deviceCategory.c_str());
-                    continue;
-                }
-                sp<VolumeCurve> curve = new VolumeCurve(deviceCat);
-                for (auto &point : configCurve.curvePoints) {
-                    curve->add({point.index, point.attenuationInMb});
-                }
-                volumeGroup->add(curve);
+        for (auto &configCurve : volumeConfig.volumeCurves) {
+            device_category deviceCat = DEVICE_CATEGORY_SPEAKER;
+            if (!DeviceCategoryConverter::fromString(configCurve.deviceCategory, deviceCat)) {
+                ALOGE("%s: Invalid %s", __FUNCTION__, configCurve.deviceCategory.c_str());
+                continue;
             }
+            sp<VolumeCurve> curve = new VolumeCurve(deviceCat);
+            for (auto &point : configCurve.curvePoints) {
+                curve->add({point.index, point.attenuationInMb});
+            }
+            volumeGroup->add(curve);
+        }
+        return volumeGroup;
+    };
+    auto addSupportedStreamAttributes = [](auto &group, auto &volumeGroup, auto &strategy) {
+        volumeGroup->addSupportedStream(group.stream);
+        for (const auto &attr : group.attributesVect) {
+            strategy->addAttributes({group.stream, volumeGroup->getId(), attr});
+            volumeGroup->addSupportedAttributes(attr);
         }
     };
+
     auto result = engineConfig::parse();
     if (result.parsedConfig == nullptr) {
         ALOGW("%s: No configuration found, using default matching phone experience.", __FUNCTION__);
@@ -146,9 +142,37 @@
                   static_cast<size_t>(ret == NO_ERROR ? 0 : 1)};
     }
     ALOGE_IF(result.nbSkippedElement != 0, "skipped %zu elements", result.nbSkippedElement);
-    loadVolumeGroups(result.parsedConfig->volumeGroups, mVolumeGroups);
-    loadProductStrategies(result.parsedConfig->productStrategies, mProductStrategies,
-                          mVolumeGroups);
+
+    engineConfig::VolumeGroup defaultVolumeConfig;
+    for (auto &volumeConfig : result.parsedConfig->volumeGroups) {
+        // save default volume config for streams not defined in configuration
+        if (volumeConfig.name.compare("AUDIO_STREAM_MUSIC") == 0) {
+            defaultVolumeConfig = volumeConfig;
+        }
+        loadVolumeConfig(mVolumeGroups, volumeConfig);
+    }
+    for (auto& strategyConfig : result.parsedConfig->productStrategies) {
+        sp<ProductStrategy> strategy = new ProductStrategy(strategyConfig.name);
+        for (const auto &group : strategyConfig.attributesGroups) {
+            const auto &iter = std::find_if(begin(mVolumeGroups), end(mVolumeGroups),
+                                         [&group](const auto &volumeGroup) {
+                    return group.volumeGroup == volumeGroup.second->getName(); });
+            if (group.stream != AUDIO_STREAM_DEFAULT) {
+                if (iter == end(mVolumeGroups)) {
+                    ALOGW("%s: No configuration of %s found, using default volume configuration"
+                            , __FUNCTION__, group.volumeGroup.c_str());
+                    defaultVolumeConfig.name = group.volumeGroup;
+                    sp<VolumeGroup> volumeGroup =
+                            loadVolumeConfig(mVolumeGroups, defaultVolumeConfig);
+                    addSupportedStreamAttributes(group, volumeGroup, strategy);
+                } else {
+                    addSupportedStreamAttributes(group, iter->second, strategy);
+                }
+            }
+        }
+        product_strategy_t strategyId = strategy->getId();
+        mProductStrategies[strategyId] = strategy;
+    }
     mProductStrategies.initialize();
     return result;
 }
@@ -272,9 +296,57 @@
     return NO_ERROR;
 }
 
+status_t EngineBase::setPreferredDeviceForStrategy(product_strategy_t strategy,
+            const AudioDeviceTypeAddr &device)
+{
+    // verify strategy exists
+    if (mProductStrategies.find(strategy) == mProductStrategies.end()) {
+        ALOGE("%s invalid strategy %u", __func__, strategy);
+        return BAD_VALUE;
+    }
+
+    mProductStrategyPreferredDevices[strategy] = device;
+    return NO_ERROR;
+}
+
+status_t EngineBase::removePreferredDeviceForStrategy(product_strategy_t strategy)
+{
+    // verify strategy exists
+    if (mProductStrategies.find(strategy) == mProductStrategies.end()) {
+        ALOGE("%s invalid strategy %u", __func__, strategy);
+        return BAD_VALUE;
+    }
+
+    if (mProductStrategyPreferredDevices.erase(strategy) == 0) {
+        // no preferred device was set
+        return NAME_NOT_FOUND;
+    }
+    return NO_ERROR;
+}
+
+status_t EngineBase::getPreferredDeviceForStrategy(product_strategy_t strategy,
+            AudioDeviceTypeAddr &device) const
+{
+    // verify strategy exists
+    if (mProductStrategies.find(strategy) == mProductStrategies.end()) {
+        ALOGE("%s unknown strategy %u", __func__, strategy);
+        return BAD_VALUE;
+    }
+    // preferred device for this strategy?
+    auto devIt = mProductStrategyPreferredDevices.find(strategy);
+    if (devIt == mProductStrategyPreferredDevices.end()) {
+        ALOGV("%s no preferred device for strategy %u", __func__, strategy);
+        return NAME_NOT_FOUND;
+    }
+
+    device = devIt->second;
+    return NO_ERROR;
+}
+
 void EngineBase::dump(String8 *dst) const
 {
     mProductStrategies.dump(dst, 2);
+    mProductStrategyPreferredDevices.dump(dst, 2);
     mVolumeGroups.dump(dst, 2);
 }
 
diff --git a/services/audiopolicy/engine/common/src/EngineDefaultConfig.h b/services/audiopolicy/engine/common/src/EngineDefaultConfig.h
index fede0d9..fbce801 100644
--- a/services/audiopolicy/engine/common/src/EngineDefaultConfig.h
+++ b/services/audiopolicy/engine/common/src/EngineDefaultConfig.h
@@ -81,6 +81,10 @@
     },
     {"STRATEGY_MEDIA",
      {
+         {"assistant", AUDIO_STREAM_ASSISTANT, "AUDIO_STREAM_ASSISTANT",
+          {{AUDIO_CONTENT_TYPE_SPEECH, AUDIO_USAGE_ASSISTANT,
+            AUDIO_SOURCE_DEFAULT, 0, ""}}
+         },
          {"music", AUDIO_STREAM_MUSIC, "AUDIO_STREAM_MUSIC",
           {
               {AUDIO_CONTENT_TYPE_UNKNOWN, AUDIO_USAGE_MEDIA, AUDIO_SOURCE_DEFAULT, 0, ""},
@@ -107,6 +111,13 @@
          }
      },
     },
+    {"STRATEGY_CALL_ASSISTANT",
+     {
+         {"", AUDIO_STREAM_PATCH, "AUDIO_STREAM_PATCH",
+          {{AUDIO_CONTENT_TYPE_UNKNOWN, AUDIO_USAGE_CALL_ASSISTANT, AUDIO_SOURCE_DEFAULT, 0, ""}}
+         }
+     },
+    },
     {"STRATEGY_TRANSMITTED_THROUGH_SPEAKER",
      {
          {"", AUDIO_STREAM_TTS, "AUDIO_STREAM_TTS",
diff --git a/services/audiopolicy/engine/common/src/LastRemovableMediaDevices.cpp b/services/audiopolicy/engine/common/src/LastRemovableMediaDevices.cpp
new file mode 100755
index 0000000..87b6aaf
--- /dev/null
+++ b/services/audiopolicy/engine/common/src/LastRemovableMediaDevices.cpp
@@ -0,0 +1,78 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT 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 "APM::AudioPolicyEngine/LastRemovableMediaDevices"
+//#define LOG_NDEBUG 0
+
+#include "LastRemovableMediaDevices.h"
+#include <log/log.h>
+
+namespace android {
+
+void LastRemovableMediaDevices::setRemovableMediaDevices(sp<DeviceDescriptor> desc,
+                                                         audio_policy_dev_state_t state)
+{
+    if (desc == nullptr) {
+        return;
+    } else {
+        if ((state == AUDIO_POLICY_DEVICE_STATE_AVAILABLE) &&
+                (getDeviceOutGroup(desc->type()) != GROUP_NONE)) {
+            setRemovableMediaDevices(desc, AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE);
+            mMediaDevices.insert(mMediaDevices.begin(), {desc, getDeviceOutGroup(desc->type())});
+        } else if (state == AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE) {
+            for (auto iter = mMediaDevices.begin(); iter != mMediaDevices.end(); ++iter) {
+                if ((iter->desc)->equals(desc)) {
+                    mMediaDevices.erase(iter);
+                    break;
+                }
+            }
+        }
+    }
+}
+
+std::vector<audio_devices_t> LastRemovableMediaDevices::getLastRemovableMediaDevices(
+        device_out_group_t group) const
+{
+    std::vector<audio_devices_t> ret;
+    for (auto iter = mMediaDevices.begin(); iter != mMediaDevices.end(); ++iter) {
+        if ((group == GROUP_NONE) || (group == getDeviceOutGroup((iter->desc)->type()))) {
+            ret.push_back((iter->desc)->type());
+        }
+    }
+    return ret;
+}
+
+device_out_group_t LastRemovableMediaDevices::getDeviceOutGroup(audio_devices_t device) const
+{
+    switch (device) {
+    case AUDIO_DEVICE_OUT_WIRED_HEADPHONE:
+    case AUDIO_DEVICE_OUT_LINE:
+    case AUDIO_DEVICE_OUT_WIRED_HEADSET:
+    case AUDIO_DEVICE_OUT_USB_HEADSET:
+    case AUDIO_DEVICE_OUT_USB_ACCESSORY:
+    case AUDIO_DEVICE_OUT_USB_DEVICE:
+    case AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET:
+        return GROUP_WIRED;
+    case AUDIO_DEVICE_OUT_BLUETOOTH_A2DP:
+    case AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES:
+    case AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER:
+        return GROUP_BT_A2DP;
+    default:
+        return GROUP_NONE;
+    }
+}
+
+} // namespace android
diff --git a/services/audiopolicy/engine/common/src/ProductStrategy.cpp b/services/audiopolicy/engine/common/src/ProductStrategy.cpp
index 14c9dd1..fe15ff6 100644
--- a/services/audiopolicy/engine/common/src/ProductStrategy.cpp
+++ b/services/audiopolicy/engine/common/src/ProductStrategy.cpp
@@ -310,5 +310,15 @@
     }
 }
 
+void ProductStrategyPreferredRoutingMap::dump(android::String8* dst, int spaces) const {
+    dst->appendFormat("\n%*sPreferred devices per product strategy dump:", spaces, "");
+    for (const auto& iter : *this) {
+        dst->appendFormat("\n%*sStrategy %u dev:%08x addr:%s",
+                          spaces + 2, "",
+                          (uint32_t) iter.first,
+                          iter.second.mType, iter.second.mAddress.c_str());
+    }
+    dst->appendFormat("\n");
+}
 }
 
diff --git a/services/audiopolicy/engine/interface/EngineInterface.h b/services/audiopolicy/engine/interface/EngineInterface.h
index 0c58a7c..dfb20b5 100644
--- a/services/audiopolicy/engine/interface/EngineInterface.h
+++ b/services/audiopolicy/engine/interface/EngineInterface.h
@@ -292,6 +292,39 @@
      */
     virtual status_t listAudioVolumeGroups(AudioVolumeGroupVector &groups) const = 0;
 
+    /**
+     * @brief setPreferredDeviceForStrategy sets the default device to be used for a
+     * strategy when available
+     * @param strategy the audio strategy whose routing will be affected
+     * @param device the audio device to route to when available
+     * @return BAD_VALUE if the strategy is invalid,
+     *     or NO_ERROR if the preferred device was set
+     */
+    virtual status_t setPreferredDeviceForStrategy(product_strategy_t strategy,
+            const AudioDeviceTypeAddr &device) = 0;
+
+    /**
+     * @brief removePreferredDeviceForStrategy removes the preferred device previously set
+     * for the given strategy
+     * @param strategy the audio strategy whose routing will be affected
+     * @return BAD_VALUE if the strategy is invalid,
+     *     or NO_ERROR if the preferred device was removed
+     */
+    virtual status_t removePreferredDeviceForStrategy(product_strategy_t strategy) = 0;
+
+    /**
+     * @brief getPreferredDeviceForStrategy queries which device is set as the
+     * preferred device for the given strategy
+     * @param strategy the strategy to query
+     * @param device returns configured as the preferred device if one was set
+     * @return BAD_VALUE if the strategy is invalid,
+     *     or NAME_NOT_FOUND if no preferred device was set
+     *     or NO_ERROR if the device parameter was initialized to the preferred device
+     */
+    virtual status_t getPreferredDeviceForStrategy(product_strategy_t strategy,
+            AudioDeviceTypeAddr &device) const = 0;
+
+
     virtual void dump(String8 *dst) const = 0;
 
 protected:
diff --git a/services/audiopolicy/engineconfigurable/config/example/phone/audio_policy_engine_product_strategies.xml b/services/audiopolicy/engineconfigurable/config/example/phone/audio_policy_engine_product_strategies.xml
index 9398743..b1c0dcf 100644
--- a/services/audiopolicy/engineconfigurable/config/example/phone/audio_policy_engine_product_strategies.xml
+++ b/services/audiopolicy/engineconfigurable/config/example/phone/audio_policy_engine_product_strategies.xml
@@ -72,6 +72,12 @@
             <Attributes> <Usage value="AUDIO_USAGE_ASSISTANCE_NAVIGATION_GUIDANCE"/> </Attributes>
             <Attributes></Attributes>
         </AttributesGroup>
+        <AttributesGroup streamType="AUDIO_STREAM_ASSISTANT" volumeGroup="assistant">
+            <Attributes>
+                <ContentType value="AUDIO_CONTENT_TYPE_SPEECH"/>
+                <Usage value="AUDIO_USAGE_ASSISTANT"/>
+            </Attributes>
+        </AttributesGroup>
         <AttributesGroup streamType="AUDIO_STREAM_SYSTEM" volumeGroup="system">
             <Attributes> <Usage value="AUDIO_USAGE_ASSISTANCE_SONIFICATION"/> </Attributes>
         </AttributesGroup>
diff --git a/services/audiopolicy/engineconfigurable/config/example/phone/audio_policy_engine_stream_volumes.xml b/services/audiopolicy/engineconfigurable/config/example/phone/audio_policy_engine_stream_volumes.xml
index 707a184..0f9614e 100644
--- a/services/audiopolicy/engineconfigurable/config/example/phone/audio_policy_engine_stream_volumes.xml
+++ b/services/audiopolicy/engineconfigurable/config/example/phone/audio_policy_engine_stream_volumes.xml
@@ -205,7 +205,16 @@
         <volume deviceCategory="DEVICE_CATEGORY_EXT_MEDIA" ref="DEFAULT_NON_MUTABLE_VOLUME_CURVE"/>
         <volume deviceCategory="DEVICE_CATEGORY_HEARING_AID" ref="DEFAULT_NON_MUTABLE_HEARING_AID_VOLUME_CURVE"/>
     </volumeGroup>
-
+    <volumeGroup>
+        <name>assistant</name>
+        <indexMin>0</indexMin>
+        <indexMax>15</indexMax>
+        <volume deviceCategory="DEVICE_CATEGORY_HEADSET" ref="DEFAULT_MEDIA_VOLUME_CURVE"/>
+        <volume deviceCategory="DEVICE_CATEGORY_SPEAKER" ref="DEFAULT_DEVICE_CATEGORY_SPEAKER_VOLUME_CURVE"/>
+        <volume deviceCategory="DEVICE_CATEGORY_EARPIECE" ref="DEFAULT_MEDIA_VOLUME_CURVE"/>
+        <volume deviceCategory="DEVICE_CATEGORY_EXT_MEDIA" ref="DEFAULT_MEDIA_VOLUME_CURVE"/>
+        <volume deviceCategory="DEVICE_CATEGORY_HEARING_AID"  ref="DEFAULT_HEARING_AID_VOLUME_CURVE"/>
+    </volumeGroup>
     <volumeGroup>
         <name>rerouting</name>
         <indexMin>0</indexMin>
diff --git a/services/audiopolicy/engineconfigurable/src/Engine.cpp b/services/audiopolicy/engineconfigurable/src/Engine.cpp
index 0a88685..752ba92 100644
--- a/services/audiopolicy/engineconfigurable/src/Engine.cpp
+++ b/services/audiopolicy/engineconfigurable/src/Engine.cpp
@@ -176,7 +176,7 @@
         return mPolicyParameterMgr->setAvailableInputDevices(
                     deviceTypesToBitMask(getApmObserver()->getAvailableInputDevices().types()));
     }
-    return BAD_TYPE;
+    return EngineBase::setDeviceConnectionState(devDesc, state);
 }
 
 status_t Engine::loadAudioPolicyEngineConfig()
diff --git a/services/audiopolicy/enginedefault/config/example/phone/audio_policy_engine_product_strategies.xml b/services/audiopolicy/enginedefault/config/example/phone/audio_policy_engine_product_strategies.xml
index 9398743..b1c0dcf 100644
--- a/services/audiopolicy/enginedefault/config/example/phone/audio_policy_engine_product_strategies.xml
+++ b/services/audiopolicy/enginedefault/config/example/phone/audio_policy_engine_product_strategies.xml
@@ -72,6 +72,12 @@
             <Attributes> <Usage value="AUDIO_USAGE_ASSISTANCE_NAVIGATION_GUIDANCE"/> </Attributes>
             <Attributes></Attributes>
         </AttributesGroup>
+        <AttributesGroup streamType="AUDIO_STREAM_ASSISTANT" volumeGroup="assistant">
+            <Attributes>
+                <ContentType value="AUDIO_CONTENT_TYPE_SPEECH"/>
+                <Usage value="AUDIO_USAGE_ASSISTANT"/>
+            </Attributes>
+        </AttributesGroup>
         <AttributesGroup streamType="AUDIO_STREAM_SYSTEM" volumeGroup="system">
             <Attributes> <Usage value="AUDIO_USAGE_ASSISTANCE_SONIFICATION"/> </Attributes>
         </AttributesGroup>
diff --git a/services/audiopolicy/enginedefault/config/example/phone/audio_policy_engine_stream_volumes.xml b/services/audiopolicy/enginedefault/config/example/phone/audio_policy_engine_stream_volumes.xml
index 707a184..a259950 100644
--- a/services/audiopolicy/enginedefault/config/example/phone/audio_policy_engine_stream_volumes.xml
+++ b/services/audiopolicy/enginedefault/config/example/phone/audio_policy_engine_stream_volumes.xml
@@ -207,6 +207,17 @@
     </volumeGroup>
 
     <volumeGroup>
+        <name>assistant</name>
+        <indexMin>0</indexMin>
+        <indexMax>15</indexMax>
+        <volume deviceCategory="DEVICE_CATEGORY_HEADSET" ref="DEFAULT_MEDIA_VOLUME_CURVE"/>
+        <volume deviceCategory="DEVICE_CATEGORY_SPEAKER" ref="DEFAULT_DEVICE_CATEGORY_SPEAKER_VOLUME_CURVE"/>
+        <volume deviceCategory="DEVICE_CATEGORY_EARPIECE" ref="DEFAULT_MEDIA_VOLUME_CURVE"/>
+        <volume deviceCategory="DEVICE_CATEGORY_EXT_MEDIA" ref="DEFAULT_MEDIA_VOLUME_CURVE"/>
+        <volume deviceCategory="DEVICE_CATEGORY_HEARING_AID"  ref="DEFAULT_HEARING_AID_VOLUME_CURVE"/>
+    </volumeGroup>
+
+    <volumeGroup>
         <name>rerouting</name>
         <indexMin>0</indexMin>
         <indexMax>1</indexMax>
diff --git a/services/audiopolicy/enginedefault/src/Engine.cpp b/services/audiopolicy/enginedefault/src/Engine.cpp
old mode 100644
new mode 100755
index 2a5cd49..a3fa974
--- a/services/audiopolicy/enginedefault/src/Engine.cpp
+++ b/services/audiopolicy/enginedefault/src/Engine.cpp
@@ -53,6 +53,7 @@
     { "STRATEGY_ACCESSIBILITY", STRATEGY_ACCESSIBILITY },
     { "STRATEGY_REROUTING", STRATEGY_REROUTING },
     { "STRATEGY_PATCH", STRATEGY_REROUTING }, // boiler to manage stream patch volume
+    { "STRATEGY_CALL_ASSISTANT", STRATEGY_CALL_ASSISTANT },
 };
 
 Engine::Engine()
@@ -387,22 +388,20 @@
             devices2 = availableOutputDevices.getDevicesFromType(AUDIO_DEVICE_OUT_HEARING_AID);
         }
         if ((devices2.isEmpty()) &&
-                (getForceUse(AUDIO_POLICY_FORCE_FOR_MEDIA) != AUDIO_POLICY_FORCE_NO_BT_A2DP) &&
-                 outputs.isA2dpSupported()) {
-            devices2 = availableOutputDevices.getFirstDevicesFromTypes({
-                    AUDIO_DEVICE_OUT_BLUETOOTH_A2DP, AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES,
-                    AUDIO_DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER});
-        }
-        if ((devices2.isEmpty()) &&
             (getForceUse(AUDIO_POLICY_FORCE_FOR_MEDIA) == AUDIO_POLICY_FORCE_SPEAKER)) {
             devices2 = availableOutputDevices.getDevicesFromType(AUDIO_DEVICE_OUT_SPEAKER);
         }
-        if (devices2.isEmpty()) {
-            devices2 = availableOutputDevices.getFirstDevicesFromTypes({
-                    AUDIO_DEVICE_OUT_WIRED_HEADPHONE, AUDIO_DEVICE_OUT_LINE,
-                    AUDIO_DEVICE_OUT_WIRED_HEADSET, AUDIO_DEVICE_OUT_USB_HEADSET,
-                    AUDIO_DEVICE_OUT_USB_ACCESSORY, AUDIO_DEVICE_OUT_USB_DEVICE,
-                    AUDIO_DEVICE_OUT_DGTL_DOCK_HEADSET});
+        if (devices2.isEmpty() && (getLastRemovableMediaDevices().size() > 0)) {
+            if ((getForceUse(AUDIO_POLICY_FORCE_FOR_MEDIA) != AUDIO_POLICY_FORCE_NO_BT_A2DP) &&
+                    outputs.isA2dpSupported()) {
+                // Get the last connected device of wired and bluetooth a2dp
+                devices2 = availableOutputDevices.getFirstDevicesFromTypes(
+                        getLastRemovableMediaDevices());
+            } else {
+                // Get the last connected device of wired except bluetooth a2dp
+                devices2 = availableOutputDevices.getFirstDevicesFromTypes(
+                        getLastRemovableMediaDevices(GROUP_WIRED));
+            }
         }
         if ((devices2.isEmpty()) && (strategy != STRATEGY_SONIFICATION)) {
             // no sonification on aux digital (e.g. HDMI)
@@ -445,6 +444,10 @@
         }
         } break;
 
+    case STRATEGY_CALL_ASSISTANT:
+        devices = availableOutputDevices.getDevicesFromType(AUDIO_DEVICE_OUT_TELEPHONY_TX);
+        break;
+
     default:
         ALOGW("getDevicesForStrategy() unknown strategy: %d", strategy);
         break;
@@ -611,7 +614,7 @@
 void Engine::updateDeviceSelectionCache()
 {
     for (const auto &iter : getProductStrategies()) {
-        const auto &strategy = iter.second;
+        const auto& strategy = iter.second;
         auto devices = getDevicesForProductStrategy(strategy->getId());
         mDevicesForStrategies[strategy->getId()] = devices;
         strategy->setDeviceTypes(devices.types());
@@ -619,14 +622,30 @@
     }
 }
 
-DeviceVector Engine::getDevicesForProductStrategy(product_strategy_t strategy) const
-{
+DeviceVector Engine::getDevicesForProductStrategy(product_strategy_t strategy) const {
     DeviceVector availableOutputDevices = getApmObserver()->getAvailableOutputDevices();
-    DeviceVector availableInputDevices = getApmObserver()->getAvailableInputDevices();
-    const SwAudioOutputCollection &outputs = getApmObserver()->getOutputs();
 
+    // check if this strategy has a preferred device that is available,
+    // if yes, give priority to it
+    AudioDeviceTypeAddr preferredStrategyDevice;
+    const status_t status = getPreferredDeviceForStrategy(strategy, preferredStrategyDevice);
+    if (status == NO_ERROR) {
+        // there is a preferred device, is it available?
+        sp<DeviceDescriptor> preferredAvailableDevDescr = availableOutputDevices.getDevice(
+                preferredStrategyDevice.mType,
+                String8(preferredStrategyDevice.mAddress.c_str()),
+                AUDIO_FORMAT_DEFAULT);
+        if (preferredAvailableDevDescr != nullptr) {
+            ALOGVV("%s using pref device 0x%08x/%s for strategy %u", __FUNCTION__,
+                   preferredStrategyDevice.mType, preferredStrategyDevice.mAddress, strategy);
+            return DeviceVector(preferredAvailableDevDescr);
+        }
+    }
+
+    DeviceVector availableInputDevices = getApmObserver()->getAvailableInputDevices();
+    const SwAudioOutputCollection& outputs = getApmObserver()->getOutputs();
     auto legacyStrategy = mLegacyStrategyMap.find(strategy) != end(mLegacyStrategyMap) ?
-                mLegacyStrategyMap.at(strategy) : STRATEGY_NONE;
+                          mLegacyStrategyMap.at(strategy) : STRATEGY_NONE;
     return getDevicesForStrategyInt(legacyStrategy,
                                     availableOutputDevices,
                                     availableInputDevices, outputs);
diff --git a/services/audiopolicy/enginedefault/src/Engine.h b/services/audiopolicy/enginedefault/src/Engine.h
index 4360c6f..bb9e2df 100644
--- a/services/audiopolicy/enginedefault/src/Engine.h
+++ b/services/audiopolicy/enginedefault/src/Engine.h
@@ -39,6 +39,7 @@
     STRATEGY_TRANSMITTED_THROUGH_SPEAKER,
     STRATEGY_ACCESSIBILITY,
     STRATEGY_REROUTING,
+    STRATEGY_CALL_ASSISTANT,
 };
 
 class Engine : public EngineBase
diff --git a/services/audiopolicy/manager/Android.mk b/services/audiopolicy/manager/Android.mk
index d6ca2f2..cae6cfa 100644
--- a/services/audiopolicy/manager/Android.mk
+++ b/services/audiopolicy/manager/Android.mk
@@ -23,8 +23,6 @@
 
 LOCAL_CFLAGS := -Wall -Werror
 
-LOCAL_MULTILIB := $(AUDIOSERVER_MULTILIB)
-
 LOCAL_MODULE:= libaudiopolicymanager
 
 include $(BUILD_SHARED_LIBRARY)
diff --git a/services/audiopolicy/managerdefault/Android.bp b/services/audiopolicy/managerdefault/Android.bp
index 1fa0d19..577b42f 100644
--- a/services/audiopolicy/managerdefault/Android.bp
+++ b/services/audiopolicy/managerdefault/Android.bp
@@ -15,7 +15,6 @@
         "libutils",
         "liblog",
         "libaudiopolicy",
-        "libsoundtrigger",
         "libmedia_helper",
         "libmediametrics",
         "libbinder",
diff --git a/services/audiopolicy/managerdefault/AudioPolicyManager.cpp b/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
index 355e4f0..e198beb 100644
--- a/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
+++ b/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
@@ -46,7 +46,6 @@
 #include <utils/Log.h>
 #include <media/AudioParameter.h>
 #include <private/android_filesystem_config.h>
-#include <soundtrigger/SoundTrigger.h>
 #include <system/audio.h>
 #include "AudioPolicyManager.h"
 #include <Serializer.h>
@@ -794,27 +793,11 @@
     //FIXME: workaround for truncated touch sounds
     // to be removed when the problem is handled by system UI
     uint32_t delayMs = 0;
-    uint32_t waitMs = 0;
     if (usage == AUDIO_POLICY_FORCE_FOR_COMMUNICATION) {
         delayMs = TOUCH_SOUND_FIXED_DELAY_MS;
     }
-    if (mEngine->getPhoneState() == AUDIO_MODE_IN_CALL && hasPrimaryOutput()) {
-        DeviceVector newDevices = getNewOutputDevices(mPrimaryOutput, true /*fromCache*/);
-        waitMs = updateCallRouting(newDevices, delayMs);
-    }
-    for (size_t i = 0; i < mOutputs.size(); i++) {
-        sp<SwAudioOutputDescriptor> outputDesc = mOutputs.valueAt(i);
-        DeviceVector newDevices = getNewOutputDevices(outputDesc, true /*fromCache*/);
-        if ((mEngine->getPhoneState() != AUDIO_MODE_IN_CALL) || (outputDesc != mPrimaryOutput)) {
-            // As done in setDeviceConnectionState, we could also fix default device issue by
-            // preventing the force re-routing in case of default dev that distinguishes on address.
-            // Let's give back to engine full device choice decision however.
-            waitMs = setOutputDevices(outputDesc, newDevices, !newDevices.isEmpty(), delayMs);
-        }
-        if (forceVolumeReeval && !newDevices.isEmpty()) {
-            applyStreamVolumes(outputDesc, newDevices.types(), waitMs, true);
-        }
-    }
+
+    updateCallAndOutputRouting(forceVolumeReeval, delayMs);
 
     for (const auto& activeDesc : mInputs.getActiveInputs()) {
         auto newDevice = getNewInputDevice(activeDesc);
@@ -1386,6 +1369,14 @@
     // For encoded streams force direct flag to prevent downstream mixing.
     sinkConfig->flags.output = static_cast<audio_output_flags_t>(
             sinkConfig->flags.output | AUDIO_OUTPUT_FLAG_DIRECT);
+    if (audio_is_iec61937_compatible(sinkConfig->format)) {
+        // For formats compatible with IEC61937 encapsulation, assume that
+        // the record thread input from MSD is IEC61937 framed (for proportional buffer sizing).
+        // Add the AUDIO_OUTPUT_FLAG_IEC958_NONAUDIO flag so downstream HAL can distinguish between
+        // raw and IEC61937 framed streams.
+        sinkConfig->flags.output = static_cast<audio_output_flags_t>(
+                sinkConfig->flags.output | AUDIO_OUTPUT_FLAG_IEC958_NONAUDIO);
+    }
     sourceConfig->sample_rate = bestSinkConfig.sample_rate;
     // Specify exact channel mask to prevent guessing by bit count in PatchPanel.
     sourceConfig->channel_mask = audio_channel_mask_out_to_in(bestSinkConfig.channel_mask);
@@ -2293,7 +2284,7 @@
         DeviceVector primaryInputDevices = availablePrimaryModuleInputDevices();
         if (primaryInputDevices.contains(device) &&
                 mInputs.activeInputsCountOnDevices(primaryInputDevices) == 1) {
-            SoundTrigger::setCaptureState(true);
+            mpClientInterface->setSoundTriggerCaptureState(true);
         }
 
         // automatically enable the remote submix output when input is started if not
@@ -2376,7 +2367,7 @@
         DeviceVector primaryInputDevices = availablePrimaryModuleInputDevices();
         if (primaryInputDevices.contains(inputDesc->getDevice()) &&
                 mInputs.activeInputsCountOnDevices(primaryInputDevices) == 0) {
-            SoundTrigger::setCaptureState(false);
+            mpClientInterface->setSoundTriggerCaptureState(false);
         }
         inputDesc->clearPreemptedSessions();
     }
@@ -2804,16 +2795,6 @@
     return mEffects.unregisterEffect(id);
 }
 
-void AudioPolicyManager::cleanUpEffectsForIo(audio_io_handle_t io)
-{
-    EffectDescriptorCollection effects = mEffects.getEffectsForIo(io);
-    for (size_t i = 0; i < effects.size(); i++) {
-        ALOGW("%s removing stale effect %s, id %d on closed IO %d",
-              __func__, effects.valueAt(i)->mDesc.name, effects.keyAt(i), io);
-        unregisterEffect(effects.keyAt(i));
-    }
-}
-
 status_t AudioPolicyManager::setEffectEnabled(int id, bool enabled)
 {
     sp<EffectDescriptor> effect = mEffects.getEffect(id);
@@ -3099,6 +3080,72 @@
     return res;
 }
 
+status_t AudioPolicyManager::setPreferredDeviceForStrategy(product_strategy_t strategy,
+                                                   const AudioDeviceTypeAddr &device) {
+    ALOGI("%s() strategy=%d device=%08x addr=%s", __FUNCTION__,
+            strategy, device.mType, device.mAddress.c_str());
+    // strategy preferred device is only for output devices
+    if (!audio_is_output_device(device.mType)) {
+        ALOGE("%s() device=%08x is NOT an output device", __FUNCTION__, device.mType);
+        return BAD_VALUE;
+    }
+
+    status_t status = mEngine->setPreferredDeviceForStrategy(strategy, device);
+    if (status != NO_ERROR) {
+        ALOGW("Engine could not set preferred device %08x %s for strategy %d",
+                device.mType, device.mAddress.c_str(), strategy);
+        return status;
+    }
+
+    checkForDeviceAndOutputChanges();
+    updateCallAndOutputRouting();
+
+    return NO_ERROR;
+}
+
+void AudioPolicyManager::updateCallAndOutputRouting(bool forceVolumeReeval, uint32_t delayMs)
+{
+    uint32_t waitMs = 0;
+    if (mEngine->getPhoneState() == AUDIO_MODE_IN_CALL && hasPrimaryOutput()) {
+        DeviceVector newDevices = getNewOutputDevices(mPrimaryOutput, true /*fromCache*/);
+        waitMs = updateCallRouting(newDevices, delayMs);
+    }
+    for (size_t i = 0; i < mOutputs.size(); i++) {
+        sp<SwAudioOutputDescriptor> outputDesc = mOutputs.valueAt(i);
+        DeviceVector newDevices = getNewOutputDevices(outputDesc, true /*fromCache*/);
+        if ((mEngine->getPhoneState() != AUDIO_MODE_IN_CALL) || (outputDesc != mPrimaryOutput)) {
+            // As done in setDeviceConnectionState, we could also fix default device issue by
+            // preventing the force re-routing in case of default dev that distinguishes on address.
+            // Let's give back to engine full device choice decision however.
+            waitMs = setOutputDevices(outputDesc, newDevices, !newDevices.isEmpty(), delayMs);
+        }
+        if (forceVolumeReeval && !newDevices.isEmpty()) {
+            applyStreamVolumes(outputDesc, newDevices.types(), waitMs, true);
+        }
+    }
+}
+
+status_t AudioPolicyManager::removePreferredDeviceForStrategy(product_strategy_t strategy)
+{
+    ALOGI("%s() strategy=%d", __FUNCTION__, strategy);
+
+    status_t status = mEngine->removePreferredDeviceForStrategy(strategy);
+    if (status != NO_ERROR) {
+        ALOGW("Engine could not remove preferred device for strategy %d", strategy);
+        return status;
+    }
+
+    checkForDeviceAndOutputChanges();
+    updateCallAndOutputRouting();
+
+    return NO_ERROR;
+}
+
+status_t AudioPolicyManager::getPreferredDeviceForStrategy(product_strategy_t strategy,
+                                                   AudioDeviceTypeAddr &device) {
+    return mEngine->getPreferredDeviceForStrategy(strategy, device);
+}
+
 void AudioPolicyManager::dump(String8 *dst) const
 {
     dst->appendFormat("\nAudioPolicyManager Dump: %p\n", this);
@@ -4994,8 +5041,6 @@
             setMsdPatch();
         }
     }
-
-    cleanUpEffectsForIo(output);
 }
 
 void AudioPolicyManager::closeInput(audio_io_handle_t input)
@@ -5025,10 +5070,8 @@
     DeviceVector primaryInputDevices = availablePrimaryModuleInputDevices();
     if (primaryInputDevices.contains(device) &&
             mInputs.activeInputsCountOnDevices(primaryInputDevices) == 0) {
-        SoundTrigger::setCaptureState(false);
+        mpClientInterface->setSoundTriggerCaptureState(false);
     }
-
-    cleanUpEffectsForIo(input);
 }
 
 SortedVector<audio_io_handle_t> AudioPolicyManager::getOutputsForDevices(
@@ -5078,6 +5121,7 @@
 
     DeviceVector oldDevices = mEngine->getOutputDevicesForAttributes(attr, 0, true /*fromCache*/);
     DeviceVector newDevices = mEngine->getOutputDevicesForAttributes(attr, 0, false /*fromCache*/);
+
     SortedVector<audio_io_handle_t> srcOutputs = getOutputsForDevices(oldDevices, mPreviousOutputs);
     SortedVector<audio_io_handle_t> dstOutputs = getOutputsForDevices(newDevices, mOutputs);
 
@@ -6062,6 +6106,7 @@
     case AUDIO_USAGE_GAME:
     case AUDIO_USAGE_VIRTUAL_SOURCE:
     case AUDIO_USAGE_ASSISTANT:
+    case AUDIO_USAGE_CALL_ASSISTANT:
         break;
     default:
         return false;
diff --git a/services/audiopolicy/managerdefault/AudioPolicyManager.h b/services/audiopolicy/managerdefault/AudioPolicyManager.h
index 322c188..d6c1016 100644
--- a/services/audiopolicy/managerdefault/AudioPolicyManager.h
+++ b/services/audiopolicy/managerdefault/AudioPolicyManager.h
@@ -259,6 +259,12 @@
                 const Vector<AudioDeviceTypeAddr>& devices);
         virtual status_t removeUidDeviceAffinities(uid_t uid);
 
+        virtual status_t setPreferredDeviceForStrategy(product_strategy_t strategy,
+                                                   const AudioDeviceTypeAddr &device);
+        virtual status_t removePreferredDeviceForStrategy(product_strategy_t strategy);
+        virtual status_t getPreferredDeviceForStrategy(product_strategy_t strategy,
+                                                   AudioDeviceTypeAddr &device);
+
         virtual status_t startAudioSource(const struct audio_port_config *source,
                                           const audio_attributes_t *attributes,
                                           audio_port_handle_t *portId,
@@ -501,13 +507,19 @@
         // close an input.
         void closeInput(audio_io_handle_t input);
 
-        // runs all the checks required for accomodating changes in devices and outputs
+        // runs all the checks required for accommodating changes in devices and outputs
         // if 'onOutputsChecked' callback is provided, it is executed after the outputs
         // check via 'checkOutputForAllStrategies'. If the callback returns 'true',
         // A2DP suspend status is rechecked.
         void checkForDeviceAndOutputChanges(std::function<bool()> onOutputsChecked = nullptr);
 
         /**
+         * @brief updates routing for all outputs (including call if call in progress).
+         * @param delayMs delay for unmuting if required
+         */
+        void updateCallAndOutputRouting(bool forceVolumeReeval = true, uint32_t delayMs = 0);
+
+        /**
          * @brief checkOutputForAttributes checks and if necessary changes outputs used for the
          * given audio attributes.
          * must be called every time a condition that affects the output choice for a given
@@ -874,8 +886,6 @@
                 int delayMs,
                 uid_t uid,
                 sp<AudioPatch> *patchDescPtr);
-
-        void cleanUpEffectsForIo(audio_io_handle_t io);
 };
 
 };
diff --git a/services/audiopolicy/service/Android.mk b/services/audiopolicy/service/Android.mk
index c4f4c56..80f4eab 100644
--- a/services/audiopolicy/service/Android.mk
+++ b/services/audiopolicy/service/Android.mk
@@ -24,13 +24,15 @@
     libbinder \
     libaudioclient \
     libaudioutils \
+    libaudiofoundation \
     libhardware_legacy \
     libaudiopolicymanager \
     libmedia_helper \
     libmediametrics \
     libmediautils \
     libeffectsconfig \
-    libsensorprivacy
+    libsensorprivacy \
+    soundtrigger_middleware-aidl-cpp
 
 LOCAL_EXPORT_SHARED_LIBRARY_HEADERS := \
     libsensorprivacy
@@ -38,8 +40,6 @@
 LOCAL_STATIC_LIBRARIES := \
     libaudiopolicycomponents
 
-LOCAL_MULTILIB := $(AUDIOSERVER_MULTILIB)
-
 LOCAL_MODULE:= libaudiopolicyservice
 
 LOCAL_CFLAGS += -fvisibility=hidden
diff --git a/services/audiopolicy/service/AudioPolicyClientImpl.cpp b/services/audiopolicy/service/AudioPolicyClientImpl.cpp
index 6de0c80..5b81b9d 100644
--- a/services/audiopolicy/service/AudioPolicyClientImpl.cpp
+++ b/services/audiopolicy/service/AudioPolicyClientImpl.cpp
@@ -17,10 +17,13 @@
 #define LOG_TAG "AudioPolicyClientImpl"
 //#define LOG_NDEBUG 0
 
-#include <soundtrigger/SoundTrigger.h>
-#include <utils/Log.h>
 #include "AudioPolicyService.h"
 
+#include <android/media/soundtrigger_middleware/ISoundTriggerMiddlewareService.h>
+#include <utils/Log.h>
+
+#include "BinderProxy.h"
+
 namespace android {
 
 /* implementation of the client interface from the policy manager */
@@ -239,4 +242,12 @@
     return AudioSystem::newAudioUniqueId(use);
 }
 
+void AudioPolicyService::AudioPolicyClient::setSoundTriggerCaptureState(bool active) {
+    using media::soundtrigger_middleware::ISoundTriggerMiddlewareService;
+
+    static BinderProxy<ISoundTriggerMiddlewareService>
+        proxy("soundtrigger_middleware");
+    proxy.waitServiceOrDie()->setExternalCaptureState(active);
+}
+
 } // namespace android
diff --git a/services/audiopolicy/service/AudioPolicyEffects.cpp b/services/audiopolicy/service/AudioPolicyEffects.cpp
index 4947714..60caa31 100644
--- a/services/audiopolicy/service/AudioPolicyEffects.cpp
+++ b/services/audiopolicy/service/AudioPolicyEffects.cpp
@@ -562,7 +562,8 @@
     AUDIO_STREAM_BLUETOOTH_SCO_TAG,
     AUDIO_STREAM_ENFORCED_AUDIBLE_TAG,
     AUDIO_STREAM_DTMF_TAG,
-    AUDIO_STREAM_TTS_TAG
+    AUDIO_STREAM_TTS_TAG,
+    AUDIO_STREAM_ASSISTANT_TAG
 };
 
 // returns the audio_stream_t enum corresponding to the output stream name or
diff --git a/services/audiopolicy/service/AudioPolicyInterfaceImpl.cpp b/services/audiopolicy/service/AudioPolicyInterfaceImpl.cpp
index feb930e..44c1d09 100644
--- a/services/audiopolicy/service/AudioPolicyInterfaceImpl.cpp
+++ b/services/audiopolicy/service/AudioPolicyInterfaceImpl.cpp
@@ -19,7 +19,7 @@
 
 #include "AudioPolicyService.h"
 #include "TypeConverter.h"
-#include <media/MediaAnalyticsItem.h>
+#include <media/MediaMetricsItem.h>
 #include <media/AudioPolicy.h>
 #include <utils/Log.h>
 
@@ -548,7 +548,7 @@
         static constexpr char kAudioPolicyActiveDevice[] =
                 "android.media.audiopolicy.active.device";
 
-        MediaAnalyticsItem *item = MediaAnalyticsItem::create(kAudioPolicy);
+        mediametrics::Item *item = mediametrics::Item::create(kAudioPolicy);
         if (item != NULL) {
 
             item->setInt32(kAudioPolicyStatus, status);
@@ -1352,4 +1352,33 @@
     return mAudioPolicyManager->isCallScreenModeSupported();
 }
 
+status_t AudioPolicyService::setPreferredDeviceForStrategy(product_strategy_t strategy,
+                                                   const AudioDeviceTypeAddr &device)
+{
+    if (mAudioPolicyManager == NULL) {
+        return NO_INIT;
+    }
+    Mutex::Autolock _l(mLock);
+    return mAudioPolicyManager->setPreferredDeviceForStrategy(strategy, device);
+}
+
+status_t AudioPolicyService::removePreferredDeviceForStrategy(product_strategy_t strategy)
+{
+    if (mAudioPolicyManager == NULL) {
+        return NO_INIT;
+    }
+    Mutex::Autolock _l(mLock);
+    return mAudioPolicyManager->removePreferredDeviceForStrategy(strategy);
+}
+
+status_t AudioPolicyService::getPreferredDeviceForStrategy(product_strategy_t strategy,
+                                                   AudioDeviceTypeAddr &device)
+{
+    if (mAudioPolicyManager == NULL) {
+        return NO_INIT;
+    }
+    Mutex::Autolock _l(mLock);
+    return mAudioPolicyManager->getPreferredDeviceForStrategy(strategy, device);
+}
+
 } // namespace android
diff --git a/services/audiopolicy/service/AudioPolicyService.cpp b/services/audiopolicy/service/AudioPolicyService.cpp
index c8d7d0c..c83512f 100644
--- a/services/audiopolicy/service/AudioPolicyService.cpp
+++ b/services/audiopolicy/service/AudioPolicyService.cpp
@@ -489,7 +489,7 @@
             latestActive = current;
             latestStartNs = current->startTimeNs;
         }
-        if (isPrivacySensitiveSource(current->attributes.source)) {
+        if ((current->attributes.flags & AUDIO_FLAG_CAPTURE_PRIVATE) != 0) {
             if (current->startTimeNs > latestSensitiveStartNs) {
                 latestSensitiveActive = current;
                 latestSensitiveStartNs = current->startTimeNs;
@@ -602,19 +602,6 @@
 }
 
 /* static */
-bool AudioPolicyService::isPrivacySensitiveSource(audio_source_t source)
-{
-    switch (source) {
-        case AUDIO_SOURCE_CAMCORDER:
-        case AUDIO_SOURCE_VOICE_COMMUNICATION:
-            return true;
-        default:
-            break;
-    }
-    return false;
-}
-
-/* static */
 bool AudioPolicyService::isVirtualSource(audio_source_t source)
 {
     switch (source) {
diff --git a/services/audiopolicy/service/AudioPolicyService.h b/services/audiopolicy/service/AudioPolicyService.h
index 2bd02c8..135b3ac 100644
--- a/services/audiopolicy/service/AudioPolicyService.h
+++ b/services/audiopolicy/service/AudioPolicyService.h
@@ -224,6 +224,15 @@
 
     virtual status_t removeUidDeviceAffinities(uid_t uid);
 
+    virtual status_t setPreferredDeviceForStrategy(product_strategy_t strategy,
+                                                   const AudioDeviceTypeAddr &device);
+
+    virtual status_t removePreferredDeviceForStrategy(product_strategy_t strategy);
+
+
+    virtual status_t getPreferredDeviceForStrategy(product_strategy_t strategy,
+                                                   AudioDeviceTypeAddr &device);
+
     virtual status_t startAudioSource(const struct audio_port_config *source,
                                       const audio_attributes_t *attributes,
                                       audio_port_handle_t *portId);
@@ -338,7 +347,6 @@
 
     void silenceAllRecordings_l();
 
-    static bool isPrivacySensitiveSource(audio_source_t source);
     static bool isVirtualSource(audio_source_t source);
 
     // If recording we need to make sure the UID is allowed to do that. If the UID is idle
@@ -709,6 +717,8 @@
 
         virtual audio_unique_id_t newAudioUniqueId(audio_unique_id_use_t use);
 
+        void setSoundTriggerCaptureState(bool active) override;
+
      private:
         AudioPolicyService *mAudioPolicyService;
     };
diff --git a/services/audiopolicy/service/BinderProxy.h b/services/audiopolicy/service/BinderProxy.h
new file mode 100644
index 0000000..516e84d
--- /dev/null
+++ b/services/audiopolicy/service/BinderProxy.h
@@ -0,0 +1,96 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <mutex>
+#include <type_traits>
+#include <binder/IInterface.h>
+#include <binder/IServiceManager.h>
+#include <utils/Log.h>
+
+namespace android {
+
+// A simple utility that caches a proxy for a service and handles death notification.
+// Typically, intended to be used as a static-lifetime object.
+//
+// Example usage:
+// static BinderProxy<IMyInterface> myInterface("my_interface_svc");
+// ...
+// myInterface.waitServiceOrDie()->doSomething();
+//
+// If the service is unavailable, will wait until it becomes available.
+// Will die if the service doesn't implement the requested interface, or cannot be used for
+// permission reasons.
+template<typename ServiceType>
+class BinderProxy {
+public:
+    static_assert(std::is_base_of_v<IInterface, ServiceType>,
+                  "Service type must be a sub-type of IInterface.");
+
+    explicit BinderProxy(std::string_view serviceName)
+            : mServiceName(serviceName), mDeathRecipient(new DeathRecipient(this)) {}
+
+    ~BinderProxy() {
+        if (mDelegate != nullptr) {
+            sp<IBinder> binder = IInterface::asBinder(mDelegate);
+            if (binder != nullptr) {
+                binder->unlinkToDeath(mDeathRecipient);
+            }
+        }
+    }
+
+    sp<ServiceType> waitServiceOrDie() {
+        std::lock_guard<std::mutex> _l(mDelegateMutex);
+        if (mDelegate == nullptr) {
+            mDelegate = waitForService<ServiceType>(String16(mServiceName.c_str()));
+            LOG_ALWAYS_FATAL_IF(mDelegate == nullptr,
+                                "Service %s doesn't implement the required interface.",
+                                mServiceName.c_str());
+            sp<IBinder> binder = IInterface::asBinder(mDelegate);
+            if (binder != nullptr) {
+                binder->linkToDeath(mDeathRecipient);
+            }
+        }
+        return mDelegate;
+    }
+
+private:
+    sp<ServiceType> mDelegate;
+    std::mutex mDelegateMutex;
+    const std::string mServiceName;
+    sp<IBinder::DeathRecipient> mDeathRecipient;
+
+    class DeathRecipient : public IBinder::DeathRecipient {
+    public:
+        DeathRecipient(BinderProxy* proxy) : mProxy(proxy) {}
+
+        void binderDied(const wp<IBinder>&) override {
+            mProxy->binderDied();
+        }
+
+    private:
+        BinderProxy* const mProxy;
+    };
+
+    void binderDied() {
+        std::lock_guard<std::mutex> _l(mDelegateMutex);
+        mDelegate.clear();
+        ALOGW("Binder died: %s", mServiceName.c_str());
+    }
+};
+
+}  // namespace android
diff --git a/services/audiopolicy/tests/AudioPolicyTestClient.h b/services/audiopolicy/tests/AudioPolicyTestClient.h
index b92a2e6..c628e70 100644
--- a/services/audiopolicy/tests/AudioPolicyTestClient.h
+++ b/services/audiopolicy/tests/AudioPolicyTestClient.h
@@ -86,6 +86,7 @@
     void setEffectSuspended(int effectId __unused,
                             audio_session_t sessionId __unused,
                             bool suspended __unused) {}
+    void setSoundTriggerCaptureState(bool active __unused) override {};
 };
 
 } // namespace android
diff --git a/services/audiopolicy/tests/audiopolicymanager_tests.cpp b/services/audiopolicy/tests/audiopolicymanager_tests.cpp
index e4a19ea..2a8349c 100644
--- a/services/audiopolicy/tests/audiopolicymanager_tests.cpp
+++ b/services/audiopolicy/tests/audiopolicymanager_tests.cpp
@@ -800,6 +800,8 @@
                 (audio_attributes_t){AUDIO_CONTENT_TYPE_MUSIC, AUDIO_USAGE_VIRTUAL_SOURCE,
                                      AUDIO_SOURCE_DEFAULT, 0, "addr=remote_submix_media"},
                 (audio_attributes_t){AUDIO_CONTENT_TYPE_MUSIC, AUDIO_USAGE_ASSISTANT,
+                                     AUDIO_SOURCE_DEFAULT, 0, "addr=remote_submix_media"},
+                (audio_attributes_t){AUDIO_CONTENT_TYPE_SPEECH, AUDIO_USAGE_ASSISTANT,
                                      AUDIO_SOURCE_DEFAULT, 0, "addr=remote_submix_media"}
                 )
         );
@@ -841,6 +843,8 @@
                 (audio_attributes_t){AUDIO_CONTENT_TYPE_MUSIC, AUDIO_USAGE_GAME,
                                      AUDIO_SOURCE_DEFAULT, 0, ""},
                 (audio_attributes_t){AUDIO_CONTENT_TYPE_MUSIC, AUDIO_USAGE_ASSISTANT,
+                                     AUDIO_SOURCE_DEFAULT, 0, ""},
+                (audio_attributes_t){AUDIO_CONTENT_TYPE_SPEECH, AUDIO_USAGE_ASSISTANT,
                                      AUDIO_SOURCE_DEFAULT, 0, ""}
                 )
         );
diff --git a/services/camera/libcameraservice/Android.bp b/services/camera/libcameraservice/Android.bp
index c50a3c6..6052a06 100644
--- a/services/camera/libcameraservice/Android.bp
+++ b/services/camera/libcameraservice/Android.bp
@@ -26,6 +26,7 @@
         "CameraFlashlight.cpp",
         "common/Camera2ClientBase.cpp",
         "common/CameraDeviceBase.cpp",
+        "common/CameraOfflineSessionBase.cpp",
         "common/CameraProviderManager.cpp",
         "common/FrameProcessorBase.cpp",
         "api1/CameraClient.cpp",
@@ -45,6 +46,7 @@
         "api2/HeicCompositeStream.cpp",
         "device1/CameraHardwareInterface.cpp",
         "device3/Camera3Device.cpp",
+        "device3/Camera3OfflineSession.cpp",
         "device3/Camera3Stream.cpp",
         "device3/Camera3IOStreamBase.cpp",
         "device3/Camera3InputStream.cpp",
@@ -54,7 +56,9 @@
         "device3/StatusTracker.cpp",
         "device3/Camera3BufferManager.cpp",
         "device3/Camera3StreamSplitter.cpp",
+        "device3/CoordinateMapper.cpp",
         "device3/DistortionMapper.cpp",
+        "device3/ZoomRatioMapper.cpp",
         "gui/RingBufferConsumer.cpp",
         "utils/CameraThreadState.cpp",
         "hidl/AidlCameraDeviceCallbacks.cpp",
@@ -110,6 +114,7 @@
         "android.hardware.camera.device@3.3",
         "android.hardware.camera.device@3.4",
         "android.hardware.camera.device@3.5",
+        "android.hardware.camera.device@3.6"
     ],
 
     export_shared_lib_headers: [
diff --git a/services/camera/libcameraservice/CameraService.cpp b/services/camera/libcameraservice/CameraService.cpp
index b704573..18ed3a5 100644
--- a/services/camera/libcameraservice/CameraService.cpp
+++ b/services/camera/libcameraservice/CameraService.cpp
@@ -2776,6 +2776,20 @@
 
 // ----------------------------------------------------------------------------
 
+sp<CameraService> CameraService::OfflineClient::sCameraService;
+
+status_t CameraService::OfflineClient::startCameraOps() {
+    // TODO
+    return OK;
+}
+
+status_t CameraService::OfflineClient::finishCameraOps() {
+    // TODO
+    return OK;
+}
+
+// ----------------------------------------------------------------------------
+
 void CameraService::Client::notifyError(int32_t errorCode,
         const CaptureResultExtras& resultExtras) {
     (void) resultExtras;
diff --git a/services/camera/libcameraservice/CameraService.h b/services/camera/libcameraservice/CameraService.h
index 1f40fc3..dae9c09 100644
--- a/services/camera/libcameraservice/CameraService.h
+++ b/services/camera/libcameraservice/CameraService.h
@@ -71,6 +71,7 @@
 public:
     class Client;
     class BasicClient;
+    class OfflineClient;
 
     // The effective API level.  The Camera2 API running in LEGACY mode counts as API_1.
     enum apiLevel {
@@ -401,6 +402,87 @@
         int mCameraId;  // All API1 clients use integer camera IDs
     }; // class Client
 
+
+    // Client for offline session. Note that offline session client does not affect camera service's
+    // client arbitration logic. It is camera HAL's decision to decide whether a normal camera
+    // client is conflicting with existing offline client(s).
+    // The other distinctive difference between offline clients and normal clients is that normal
+    // clients are created through ICameraService binder calls, while the offline session client
+    // is created through ICameraDeviceUser::switchToOffline call.
+    class OfflineClient : public virtual RefBase {
+
+        virtual status_t dump(int fd, const Vector<String16>& args) = 0;
+
+        // Block the client form using the camera
+        virtual void block() = 0;
+
+        // Return the package name for this client
+        virtual String16 getPackageName() const = 0;
+
+        // Notify client about a fatal error
+        // TODO: maybe let impl notify within block?
+        virtual void notifyError(int32_t errorCode,
+                const CaptureResultExtras& resultExtras) = 0;
+
+        // Get the UID of the application client using this
+        virtual uid_t getClientUid() const = 0;
+
+        // Get the PID of the application client using this
+        virtual int getClientPid() const = 0;
+
+        protected:
+            OfflineClient(const sp<CameraService>& cameraService,
+                    const String16& clientPackageName,
+                    const String8& cameraIdStr,
+                    int clientPid,
+                    uid_t clientUid,
+                    int servicePid): mCameraIdStr(cameraIdStr),
+                            mClientPackageName(clientPackageName), mClientPid(clientPid),
+                            mClientUid(clientUid), mServicePid(servicePid) {
+                if (sCameraService == nullptr) {
+                    sCameraService = cameraService;
+                }
+            }
+
+            virtual ~OfflineClient() { /*TODO*/ }
+
+            // these are initialized in the constructor.
+            static sp<CameraService>        sCameraService;
+            const String8                   mCameraIdStr;
+            String16                        mClientPackageName;
+            pid_t                           mClientPid;
+            const uid_t                     mClientUid;
+            const pid_t                     mServicePid;
+            bool                            mDisconnected;
+
+            // - The app-side Binder interface to receive callbacks from us
+            sp<IBinder>                     mRemoteBinder;   // immutable after constructor
+
+            // permissions management
+            status_t                        startCameraOps();
+            status_t                        finishCameraOps();
+
+        private:
+            std::unique_ptr<AppOpsManager>  mAppOpsManager = nullptr;
+
+            class OpsCallback : public BnAppOpsCallback {
+            public:
+                explicit OpsCallback(wp<OfflineClient> client) : mClient(client) {}
+                virtual void opChanged(int32_t /*op*/, const String16& /*packageName*/) {
+                    //TODO
+                }
+
+            private:
+                wp<OfflineClient> mClient;
+
+            }; // class OpsCallback
+
+            sp<OpsCallback> mOpsCallback;
+
+            // IAppOpsCallback interface, indirected through opListener
+            // virtual void opChanged(int32_t op, const String16& packageName);
+    }; // class OfflineClient
+
     /**
      * A listener class that implements the LISTENER interface for use with a ClientManager, and
      * implements the following methods:
diff --git a/services/camera/libcameraservice/api2/CameraDeviceClient.cpp b/services/camera/libcameraservice/api2/CameraDeviceClient.cpp
index 27bebde..28421ba 100644
--- a/services/camera/libcameraservice/api2/CameraDeviceClient.cpp
+++ b/services/camera/libcameraservice/api2/CameraDeviceClient.cpp
@@ -1901,6 +1901,80 @@
     return binder::Status::ok();
 }
 
+binder::Status CameraDeviceClient::switchToOffline(
+        const sp<hardware::camera2::ICameraDeviceCallbacks>& cameraCb,
+        const std::vector<view::Surface>& offlineOutputs,
+        /*out*/
+        sp<hardware::camera2::ICameraOfflineSession>* session) {
+    ATRACE_CALL();
+
+    binder::Status res;
+    if (!(res = checkPidStatus(__FUNCTION__)).isOk()) return res;
+
+    Mutex::Autolock icl(mBinderSerializationLock);
+
+    if (!mDevice.get()) {
+        return STATUS_ERROR(CameraService::ERROR_DISCONNECTED, "Camera device no longer alive");
+    }
+
+    if (offlineOutputs.empty()) {
+        String8 msg = String8::format("Offline outputs must not be empty");
+        ALOGE("%s: %s", __FUNCTION__, msg.string());
+        return STATUS_ERROR(CameraService::ERROR_ILLEGAL_ARGUMENT, msg.string());
+    }
+
+    if (session == nullptr) {
+        String8 msg = String8::format("Invalid offline session");
+        ALOGE("%s: %s", __FUNCTION__, msg.string());
+        return STATUS_ERROR(CameraService::ERROR_ILLEGAL_ARGUMENT, msg.string());
+    }
+
+    std::vector<int32_t> offlineStreamIds(offlineOutputs.size());
+    for (auto& surface : offlineOutputs) {
+        sp<IBinder> binder = IInterface::asBinder(surface.graphicBufferProducer);
+        ssize_t index = mStreamMap.indexOfKey(binder);
+        if (index == NAME_NOT_FOUND) {
+            String8 msg = String8::format("Offline output is invalid");
+            ALOGE("%s: %s", __FUNCTION__, msg.string());
+            return STATUS_ERROR(CameraService::ERROR_ILLEGAL_ARGUMENT, msg.string());
+        }
+        // TODO: Also check whether the offline output is supported by Hal for offline mode.
+
+        sp<Surface> s = new Surface(surface.graphicBufferProducer);
+        bool isCompositeStream = camera3::DepthCompositeStream::isDepthCompositeStream(s);
+        isCompositeStream |= camera3::HeicCompositeStream::isHeicCompositeStream(s);
+        if (isCompositeStream) {
+            // TODO: Add composite specific handling
+        } else {
+            offlineStreamIds.push_back(mStreamMap.valueAt(index).streamId());
+        }
+    }
+
+    sp<CameraOfflineSessionBase> offlineSession;
+    auto ret = mDevice->switchToOffline(offlineStreamIds, &offlineSession);
+    if (ret != OK) {
+        return STATUS_ERROR_FMT(CameraService::ERROR_ILLEGAL_ARGUMENT,
+                "Camera %s: Error switching to offline mode: %s (%d)",
+                mCameraIdStr.string(), strerror(ret), ret);
+    }
+
+    sp<CameraOfflineSessionClient> offlineClient = new CameraOfflineSessionClient(sCameraService,
+            offlineSession, cameraCb, mClientPackageName, mCameraIdStr, mClientPid, mClientUid,
+            mServicePid);
+    ret = offlineClient->initialize();
+    if (ret == OK) {
+        // TODO: We need to update mStreamMap, mConfiguredOutputs
+    } else {
+        return STATUS_ERROR_FMT(CameraService::ERROR_ILLEGAL_ARGUMENT,
+                "Camera %s: Failed to initilize offline session: %s (%d)",
+                mCameraIdStr.string(), strerror(ret), ret);
+    }
+
+    *session = offlineClient;
+
+    return binder::Status::ok();
+}
+
 status_t CameraDeviceClient::dump(int fd, const Vector<String16>& args) {
     return BasicClient::dump(fd, args);
 }
diff --git a/services/camera/libcameraservice/api2/CameraDeviceClient.h b/services/camera/libcameraservice/api2/CameraDeviceClient.h
index 7efc5ab..0a8f377 100644
--- a/services/camera/libcameraservice/api2/CameraDeviceClient.h
+++ b/services/camera/libcameraservice/api2/CameraDeviceClient.h
@@ -23,6 +23,7 @@
 #include <camera/camera2/SessionConfiguration.h>
 #include <camera/camera2/SubmitInfo.h>
 
+#include "CameraOfflineSessionClient.h"
 #include "CameraService.h"
 #include "common/FrameProcessorBase.h"
 #include "common/Camera2ClientBase.h"
@@ -157,6 +158,12 @@
 
     virtual binder::Status getGlobalAudioRestriction(/*out*/int32_t* outMode) override;
 
+    virtual binder::Status switchToOffline(
+            const sp<hardware::camera2::ICameraDeviceCallbacks>& cameraCb,
+            const std::vector<view::Surface>& offlineOutputs,
+            /*out*/
+            sp<hardware::camera2::ICameraOfflineSession>* session) override;
+
     /**
      * Interface used by CameraService
      */
diff --git a/services/camera/libcameraservice/api2/CameraOfflineSessionClient.h b/services/camera/libcameraservice/api2/CameraOfflineSessionClient.h
new file mode 100644
index 0000000..cb83e29
--- /dev/null
+++ b/services/camera/libcameraservice/api2/CameraOfflineSessionClient.h
@@ -0,0 +1,85 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES 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_PHOTOGRAPHY_CAMERAOFFLINESESSIONCLIENT_H
+#define ANDROID_SERVERS_CAMERA_PHOTOGRAPHY_CAMERAOFFLINESESSIONCLIENT_H
+
+#include <android/hardware/camera2/BnCameraOfflineSession.h>
+#include <android/hardware/camera2/ICameraDeviceCallbacks.h>
+#include "CameraService.h"
+
+namespace android {
+
+using android::hardware::camera2::ICameraDeviceCallbacks;
+
+class CameraOfflineSessionClient :
+        public CameraService::OfflineClient,
+        public hardware::camera2::BnCameraOfflineSession
+        // public camera2::FrameProcessorBase::FilteredListener?
+{
+public:
+    CameraOfflineSessionClient(
+            const sp<CameraService>& cameraService,
+            sp<CameraOfflineSessionBase> session,
+            const sp<ICameraDeviceCallbacks>& remoteCallback,
+            const String16& clientPackageName,
+            const String8& cameraIdStr,
+            int clientPid, uid_t clientUid, int servicePid) :
+                    CameraService::OfflineClient(cameraService, clientPackageName,
+                            cameraIdStr, clientPid, clientUid, servicePid),
+                            mRemoteCallback(remoteCallback), mOfflineSession(session) {}
+
+    ~CameraOfflineSessionClient() {}
+
+    virtual binder::Status disconnect() override { return binder::Status::ok(); }
+
+    virtual status_t dump(int /*fd*/, const Vector<String16>& /*args*/) override {
+        return OK;
+    }
+
+    // Block the client form using the camera
+    virtual void block() override {};
+
+    // Return the package name for this client
+    virtual String16 getPackageName() const override { String16 ret; return ret; };
+
+    // Notify client about a fatal error
+    // TODO: maybe let impl notify within block?
+    virtual void notifyError(int32_t /*errorCode*/,
+            const CaptureResultExtras& /*resultExtras*/) override {}
+
+    // Get the UID of the application client using this
+    virtual uid_t getClientUid() const override { return 0; }
+
+    // Get the PID of the application client using this
+    virtual int getClientPid() const override { return 0; }
+
+    status_t initialize() {
+        // TODO: Talk to camera service to add the offline session client book keeping
+        return OK;
+    }
+private:
+    sp<CameraOfflineSessionBase> mSession;
+
+    sp<hardware::camera2::ICameraDeviceCallbacks> mRemoteCallback;
+    // This class is responsible to convert HAL callbacks to AIDL callbacks
+
+    sp<CameraOfflineSessionBase> mOfflineSession;
+};
+
+} // namespace android
+
+#endif // ANDROID_SERVERS_CAMERA_PHOTOGRAPHY_CAMERAOFFLINESESSIONCLIENT_H
diff --git a/services/camera/libcameraservice/api2/HeicCompositeStream.cpp b/services/camera/libcameraservice/api2/HeicCompositeStream.cpp
index bf4d1c8..9cdad70 100644
--- a/services/camera/libcameraservice/api2/HeicCompositeStream.cpp
+++ b/services/camera/libcameraservice/api2/HeicCompositeStream.cpp
@@ -67,6 +67,7 @@
         mDequeuedOutputBufferCnt(0),
         mLockedAppSegmentBufferCnt(0),
         mCodecOutputCounter(0),
+        mQuality(-1),
         mGridTimestampUs(0) {
 }
 
@@ -525,6 +526,12 @@
         mPendingInputFrames[it->first].orientation = it->second.first;
         mPendingInputFrames[it->first].quality = it->second.second;
         mSettingsByTimestamp.erase(it);
+
+        // Set encoder quality if no inflight encoding
+        if (mPendingInputFrames.size() == 1) {
+            int32_t newQuality = mPendingInputFrames.begin()->second.quality;
+            updateCodecQualityLocked(newQuality);
+        }
     }
 
     while (!mInputAppSegmentBuffers.empty()) {
@@ -851,17 +858,6 @@
                 strerror(-res), res);
         return res;
     }
-    // Set encoder quality
-    {
-        sp<AMessage> qualityParams = new AMessage;
-        qualityParams->setInt32(PARAMETER_KEY_VIDEO_BITRATE, inputFrame.quality);
-        res = mCodec->setParameters(qualityParams);
-        if (res != OK) {
-            ALOGE("%s: Failed to set codec quality: %s (%d)",
-                    __FUNCTION__, strerror(-res), res);
-            return res;
-        }
-    }
 
     ssize_t trackId = inputFrame.muxer->addTrack(inputFrame.format);
     if (trackId < 0) {
@@ -1148,16 +1144,30 @@
 
 void HeicCompositeStream::releaseInputFramesLocked() {
     auto it = mPendingInputFrames.begin();
+    bool inputFrameDone = false;
     while (it != mPendingInputFrames.end()) {
         auto& inputFrame = it->second;
         if (inputFrame.error ||
             (inputFrame.appSegmentWritten && inputFrame.pendingOutputTiles == 0)) {
             releaseInputFrameLocked(&inputFrame);
             it = mPendingInputFrames.erase(it);
+            inputFrameDone = true;
         } else {
             it++;
         }
     }
+
+    // Update codec quality based on first upcoming input frame.
+    // Note that when encoding is in surface mode, currently there is  no
+    // way for camera service to synchronize quality setting on a per-frame
+    // basis: we don't get notification when codec is ready to consume a new
+    // input frame. So we update codec quality on a best-effort basis.
+    if (inputFrameDone) {
+        auto firstPendingFrame = mPendingInputFrames.begin();
+        if (firstPendingFrame != mPendingInputFrames.end()) {
+            updateCodecQualityLocked(firstPendingFrame->second.quality);
+        }
+    }
 }
 
 status_t HeicCompositeStream::initializeCodec(uint32_t width, uint32_t height,
@@ -1546,6 +1556,20 @@
     return maxAppsSegment * (2 + 0xFFFF) + sizeof(struct CameraBlob);
 }
 
+void HeicCompositeStream::updateCodecQualityLocked(int32_t quality) {
+    if (quality != mQuality) {
+        sp<AMessage> qualityParams = new AMessage;
+        qualityParams->setInt32(PARAMETER_KEY_VIDEO_BITRATE, quality);
+        status_t res = mCodec->setParameters(qualityParams);
+        if (res != OK) {
+            ALOGE("%s: Failed to set codec quality: %s (%d)",
+                    __FUNCTION__, strerror(-res), res);
+        } else {
+            mQuality = quality;
+        }
+    }
+}
+
 bool HeicCompositeStream::threadLoop() {
     int64_t currentTs = INT64_MAX;
     bool newInputAvailable = false;
diff --git a/services/camera/libcameraservice/api2/HeicCompositeStream.h b/services/camera/libcameraservice/api2/HeicCompositeStream.h
index 04e7b83..e88471d 100644
--- a/services/camera/libcameraservice/api2/HeicCompositeStream.h
+++ b/services/camera/libcameraservice/api2/HeicCompositeStream.h
@@ -199,6 +199,7 @@
             size_t top, size_t left, size_t width, size_t height);
     void initCopyRowFunction(int32_t width);
     static size_t calcAppSegmentMaxSize(const CameraMetadata& info);
+    void updateCodecQualityLocked(int32_t quality);
 
     static const nsecs_t kWaitDuration = 10000000; // 10 ms
     static const int32_t kDefaultJpegQuality = 99;
@@ -240,6 +241,7 @@
     std::vector<CodecOutputBufferInfo> mCodecOutputBuffers;
     std::queue<int64_t> mCodecOutputBufferTimestamps;
     size_t mCodecOutputCounter;
+    int32_t mQuality;
 
     // Keep all incoming Yuv buffer pending tiling and encoding (for HEVC YUV tiling only)
     std::vector<int64_t> mInputYuvBuffers;
diff --git a/services/camera/libcameraservice/common/CameraDeviceBase.h b/services/camera/libcameraservice/common/CameraDeviceBase.h
index 935bc37..1026fdf 100644
--- a/services/camera/libcameraservice/common/CameraDeviceBase.h
+++ b/services/camera/libcameraservice/common/CameraDeviceBase.h
@@ -35,6 +35,8 @@
 #include "device3/Camera3StreamInterface.h"
 #include "binder/Status.h"
 
+#include "CameraOfflineSessionBase.h"
+
 namespace android {
 
 class CameraProviderManager;
@@ -389,6 +391,13 @@
      * requests to complete, based on their settings
      */
     virtual nsecs_t getExpectedInFlightDuration() = 0;
+
+    /**
+     * switch to offline session
+     */
+    virtual status_t switchToOffline(
+            const std::vector<int32_t>& streamsToKeep,
+            /*out*/ sp<CameraOfflineSessionBase>* session) = 0;
 };
 
 }; // namespace android
diff --git a/services/camera/libcameraservice/common/CameraOfflineSessionBase.cpp b/services/camera/libcameraservice/common/CameraOfflineSessionBase.cpp
new file mode 100644
index 0000000..ff673a9
--- /dev/null
+++ b/services/camera/libcameraservice/common/CameraOfflineSessionBase.cpp
@@ -0,0 +1,27 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT 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 "CameraOfflineSessionBase.h"
+
+namespace android {
+
+/**
+ * Base class destructors
+ */
+CameraOfflineSessionBase::~CameraOfflineSessionBase() {
+}
+
+} // namespace android
diff --git a/services/camera/libcameraservice/common/CameraOfflineSessionBase.h b/services/camera/libcameraservice/common/CameraOfflineSessionBase.h
new file mode 100644
index 0000000..3862521
--- /dev/null
+++ b/services/camera/libcameraservice/common/CameraOfflineSessionBase.h
@@ -0,0 +1,53 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES 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_CAMERAOFFLINESESSIONBASE_H
+#define ANDROID_SERVERS_CAMERA_CAMERAOFFLINESESSIONBASE_H
+
+#include <utils/RefBase.h>
+#include <utils/String8.h>
+#include <utils/Timers.h>
+
+#include "camera/CaptureResult.h"
+
+namespace android {
+
+class CameraOfflineSessionBase : public virtual RefBase {
+  public:
+    virtual ~CameraOfflineSessionBase();
+
+    // The session's original camera ID
+    virtual const String8& getId() const = 0;
+
+    virtual status_t disconnect() = 0;
+
+    virtual status_t dump(int fd) = 0;
+
+    virtual status_t abort() = 0;
+
+    /**
+     * Capture result passing
+     */
+    virtual status_t waitForNextFrame(nsecs_t timeout) = 0;
+
+    virtual status_t getNextResult(CaptureResult *frame) = 0;
+
+    // TODO: notification passing path
+}; // class CameraOfflineSessionBase
+
+} // namespace android
+
+#endif
diff --git a/services/camera/libcameraservice/common/CameraProviderManager.cpp b/services/camera/libcameraservice/common/CameraProviderManager.cpp
index 7ed4c3d..42698c5 100644
--- a/services/camera/libcameraservice/common/CameraProviderManager.cpp
+++ b/services/camera/libcameraservice/common/CameraProviderManager.cpp
@@ -40,6 +40,7 @@
 #include <utils/Trace.h>
 
 #include "api2/HeicCompositeStream.h"
+#include "device3/ZoomRatioMapper.h"
 
 namespace android {
 
@@ -232,6 +233,15 @@
     return deviceInfo->hasFlashUnit();
 }
 
+bool CameraProviderManager::supportNativeZoomRatio(const std::string &id) const {
+    std::lock_guard<std::mutex> lock(mInterfaceMutex);
+
+    auto deviceInfo = findDeviceInfoLocked(id);
+    if (deviceInfo == nullptr) return false;
+
+    return deviceInfo->supportNativeZoomRatio();
+}
+
 status_t CameraProviderManager::getResourceCost(const std::string &id,
         CameraResourceCost* cost) const {
     std::lock_guard<std::mutex> lock(mInterfaceMutex);
@@ -2035,6 +2045,13 @@
                 __FUNCTION__, strerror(-res), res);
     }
 
+    res = camera3::ZoomRatioMapper::overrideZoomRatioTags(
+            &mCameraCharacteristics, &mSupportNativeZoomRatio);
+    if (OK != res) {
+        ALOGE("%s: Unable to override zoomRatio related tags: %s (%d)",
+                __FUNCTION__, strerror(-res), res);
+    }
+
     camera_metadata_entry flashAvailable =
             mCameraCharacteristics.find(ANDROID_FLASH_INFO_AVAILABLE);
     if (flashAvailable.count == 1 &&
@@ -2095,6 +2112,13 @@
                         CameraProviderManager::statusToString(status), status);
                 return;
             }
+
+            res = camera3::ZoomRatioMapper::overrideZoomRatioTags(
+                    &mPhysicalCameraCharacteristics[id], &mSupportNativeZoomRatio);
+            if (OK != res) {
+                ALOGE("%s: Unable to override zoomRatio related tags: %s (%d)",
+                        __FUNCTION__, strerror(-res), res);
+            }
         }
     }
 
diff --git a/services/camera/libcameraservice/common/CameraProviderManager.h b/services/camera/libcameraservice/common/CameraProviderManager.h
index 2ef1f6f..651b8a1 100644
--- a/services/camera/libcameraservice/common/CameraProviderManager.h
+++ b/services/camera/libcameraservice/common/CameraProviderManager.h
@@ -187,6 +187,11 @@
     bool hasFlashUnit(const std::string &id) const;
 
     /**
+     * Return true if the camera device has native zoom ratio support.
+     */
+    bool supportNativeZoomRatio(const std::string &id) const;
+
+    /**
      * Return the resource cost of this camera device
      */
     status_t getResourceCost(const std::string &id,
@@ -416,6 +421,7 @@
             sp<ProviderInfo> mParentProvider;
 
             bool hasFlashUnit() const { return mHasFlashUnit; }
+            bool supportNativeZoomRatio() const { return mSupportNativeZoomRatio; }
             virtual status_t setTorchMode(bool enabled) = 0;
             virtual status_t getCameraInfo(hardware::CameraInfo *info) const = 0;
             virtual bool isAPI1Compatible() const = 0;
@@ -449,10 +455,11 @@
                     mIsLogicalCamera(false), mResourceCost(resourceCost),
                     mStatus(hardware::camera::common::V1_0::CameraDeviceStatus::PRESENT),
                     mParentProvider(parentProvider), mHasFlashUnit(false),
-                    mPublicCameraIds(publicCameraIds) {}
+                    mSupportNativeZoomRatio(false), mPublicCameraIds(publicCameraIds) {}
             virtual ~DeviceInfo();
         protected:
-            bool mHasFlashUnit;
+            bool mHasFlashUnit; // const after constructor
+            bool mSupportNativeZoomRatio; // const after constructor
             const std::vector<std::string>& mPublicCameraIds;
 
             template<class InterfaceT>
diff --git a/services/camera/libcameraservice/device3/Camera3Device.cpp b/services/camera/libcameraservice/device3/Camera3Device.cpp
index 3188892..92ba5e4 100644
--- a/services/camera/libcameraservice/device3/Camera3Device.cpp
+++ b/services/camera/libcameraservice/device3/Camera3Device.cpp
@@ -58,6 +58,7 @@
 #include "device3/Camera3InputStream.h"
 #include "device3/Camera3DummyStream.h"
 #include "device3/Camera3SharedOutputStream.h"
+#include "device3/Camera3OfflineSession.h"
 #include "CameraService.h"
 #include "utils/CameraThreadState.h"
 
@@ -132,6 +133,7 @@
         session->close();
         return res;
     }
+    mSupportNativeZoomRatio = manager->supportNativeZoomRatio(mId.string());
 
     std::vector<std::string> physicalCameraIds;
     bool isLogical = manager->isLogicalCamera(mId.string(), &physicalCameraIds);
@@ -146,8 +148,11 @@
                 return res;
             }
 
-            if (DistortionMapper::isDistortionSupported(mPhysicalDeviceInfoMap[physicalId])) {
-                mDistortionMappers[physicalId].setupStaticInfo(mPhysicalDeviceInfoMap[physicalId]);
+            bool usePrecorrectArray =
+                    DistortionMapper::isDistortionSupported(mPhysicalDeviceInfoMap[physicalId]);
+            if (usePrecorrectArray) {
+                res = mDistortionMappers[physicalId].setupStaticInfo(
+                        mPhysicalDeviceInfoMap[physicalId]);
                 if (res != OK) {
                     SET_ERR_L("Unable to read camera %s's calibration fields for distortion "
                             "correction", physicalId.c_str());
@@ -155,6 +160,10 @@
                     return res;
                 }
             }
+
+            mZoomRatioMappers[physicalId] = ZoomRatioMapper(
+                    &mPhysicalDeviceInfoMap[physicalId],
+                    mSupportNativeZoomRatio, usePrecorrectArray);
         }
     }
 
@@ -206,7 +215,15 @@
             ANDROID_INFO_SUPPORTED_BUFFER_MANAGEMENT_VERSION_HIDL_DEVICE_3_5);
     }
 
-    mInterface = new HalInterface(session, queue, mUseHalBufManager);
+    camera_metadata_entry_t capabilities = mDeviceInfo.find(ANDROID_REQUEST_AVAILABLE_CAPABILITIES);
+    for (size_t i = 0; i < capabilities.count; i++) {
+        uint8_t capability = capabilities.data.u8[i];
+        if (capability == ANDROID_REQUEST_AVAILABLE_CAPABILITIES_OFFLINE_PROCESSING) {
+            mSupportOfflineProcessing = true;
+        }
+    }
+
+    mInterface = new HalInterface(session, queue, mUseHalBufManager, mSupportOfflineProcessing);
     std::string providerType;
     mVendorTagId = manager->getProviderTagIdLocked(mId.string());
     mTagMonitor.initialize(mVendorTagId);
@@ -227,9 +244,8 @@
             maxVersion.get_major(), maxVersion.get_minor());
 
     bool isMonochrome = false;
-    camera_metadata_entry_t entry = mDeviceInfo.find(ANDROID_REQUEST_AVAILABLE_CAPABILITIES);
-    for (size_t i = 0; i < entry.count; i++) {
-        uint8_t capability = entry.data.u8[i];
+    for (size_t i = 0; i < capabilities.count; i++) {
+        uint8_t capability = capabilities.data.u8[i];
         if (capability == ANDROID_REQUEST_AVAILABLE_CAPABILITIES_MONOCHROME) {
             isMonochrome = true;
         }
@@ -323,13 +339,18 @@
         }
     }
 
-    if (DistortionMapper::isDistortionSupported(mDeviceInfo)) {
+    bool usePrecorrectArray = DistortionMapper::isDistortionSupported(mDeviceInfo);
+    if (usePrecorrectArray) {
         res = mDistortionMappers[mId.c_str()].setupStaticInfo(mDeviceInfo);
         if (res != OK) {
             SET_ERR_L("Unable to read necessary calibration fields for distortion correction");
             return res;
         }
     }
+
+    mZoomRatioMappers[mId.c_str()] = ZoomRatioMapper(&mDeviceInfo,
+            mSupportNativeZoomRatio, usePrecorrectArray);
+
     return OK;
 }
 
@@ -2116,6 +2137,15 @@
         set_camera_metadata_vendor_id(rawRequest, mVendorTagId);
         mRequestTemplateCache[templateId].acquire(rawRequest);
 
+        // Override the template request with zoomRatioMapper
+        res = mZoomRatioMappers[mId.c_str()].initZoomRatioInTemplate(
+                &mRequestTemplateCache[templateId]);
+        if (res != OK) {
+            CLOGE("Failed to update zoom ratio for template %d: %s (%d)",
+                    templateId, strerror(-res), res);
+            return res;
+        }
+
         *request = mRequestTemplateCache[templateId];
         mLastTemplateId = templateId;
     }
@@ -2165,7 +2195,9 @@
 }
 
 void Camera3Device::pauseStateNotify(bool enable) {
-    Mutex::Autolock il(mInterfaceLock);
+    // We must not hold mInterfaceLock here since this function is called from
+    // RequestThread::threadLoop and holding mInterfaceLock could lead to
+    // deadlocks (http://b/143513518)
     Mutex::Autolock l(mLock);
 
     mPauseStateNotify = enable;
@@ -2742,7 +2774,9 @@
     ATRACE_CALL();
     bool ret = false;
 
-    Mutex::Autolock il(mInterfaceLock);
+    // We must not hold mInterfaceLock here since this function is called from
+    // RequestThread::threadLoop and holding mInterfaceLock could lead to
+    // deadlocks (http://b/143513518)
     nsecs_t maxExpectedDuration = getExpectedInFlightDuration();
 
     Mutex::Autolock l(mLock);
@@ -3138,14 +3172,15 @@
         int32_t numBuffers, CaptureResultExtras resultExtras, bool hasInput,
         bool hasAppCallback, nsecs_t maxExpectedDuration,
         std::set<String8>& physicalCameraIds, bool isStillCapture,
-        bool isZslCapture, const SurfaceMap& outputSurfaces) {
+        bool isZslCapture, const std::set<std::string>& cameraIdsWithZoom,
+        const SurfaceMap& outputSurfaces) {
     ATRACE_CALL();
     Mutex::Autolock l(mInFlightLock);
 
     ssize_t res;
     res = mInFlightMap.add(frameNumber, InFlightRequest(numBuffers, resultExtras, hasInput,
             hasAppCallback, maxExpectedDuration, physicalCameraIds, isStillCapture, isZslCapture,
-            outputSurfaces));
+            cameraIdsWithZoom, outputSurfaces));
     if (res < 0) return res;
 
     if (mInFlightMap.size() == 1) {
@@ -3496,7 +3531,7 @@
         CaptureResultExtras &resultExtras,
         CameraMetadata &collectedPartialResult,
         uint32_t frameNumber,
-        bool reprocess, bool zslStillCapture,
+        bool reprocess, bool zslStillCapture, const std::set<std::string>& cameraIdsWithZoom,
         const std::vector<PhysicalCaptureResultInfo>& physicalMetadatas) {
     ATRACE_CALL();
     if (pendingMetadata.isEmpty())
@@ -3565,19 +3600,39 @@
             mDistortionMappers[mId.c_str()].correctCaptureResult(&captureResult.mMetadata);
     if (res != OK) {
         SET_ERR("Unable to correct capture result metadata for frame %d: %s (%d)",
-                frameNumber, strerror(res), res);
+                frameNumber, strerror(-res), res);
         return;
     }
+
+    // Fix up result metadata to account for zoom ratio availabilities between
+    // HAL and app.
+    bool zoomRatioIs1 = cameraIdsWithZoom.find(mId.c_str()) == cameraIdsWithZoom.end();
+    res = mZoomRatioMappers[mId.c_str()].updateCaptureResult(
+            &captureResult.mMetadata, zoomRatioIs1);
+    if (res != OK) {
+        SET_ERR("Failed to update capture result zoom ratio metadata for frame %d: %s (%d)",
+                frameNumber, strerror(-res), res);
+        return;
+    }
+
     for (auto& physicalMetadata : captureResult.mPhysicalMetadatas) {
         String8 cameraId8(physicalMetadata.mPhysicalCameraId);
-        if (mDistortionMappers.find(cameraId8.c_str()) == mDistortionMappers.end()) {
-            continue;
+        if (mDistortionMappers.find(cameraId8.c_str()) != mDistortionMappers.end()) {
+            res = mDistortionMappers[cameraId8.c_str()].correctCaptureResult(
+                    &physicalMetadata.mPhysicalCameraMetadata);
+            if (res != OK) {
+                SET_ERR("Unable to correct physical capture result metadata for frame %d: %s (%d)",
+                        frameNumber, strerror(-res), res);
+                return;
+            }
         }
-        res = mDistortionMappers[cameraId8.c_str()].correctCaptureResult(
-                &physicalMetadata.mPhysicalCameraMetadata);
+
+        zoomRatioIs1 = cameraIdsWithZoom.find(cameraId8.c_str()) == cameraIdsWithZoom.end();
+        res = mZoomRatioMappers[cameraId8.c_str()].updateCaptureResult(
+                &physicalMetadata.mPhysicalCameraMetadata, zoomRatioIs1);
         if (res != OK) {
-            SET_ERR("Unable to correct physical capture result metadata for frame %d: %s (%d)",
-                    frameNumber, strerror(res), res);
+            SET_ERR("Failed to update camera %s's physical zoom ratio metadata for "
+                    "frame %d: %s(%d)", cameraId8.c_str(), frameNumber, strerror(-res), res);
             return;
         }
     }
@@ -3782,7 +3837,7 @@
                 sendCaptureResult(metadata, request.resultExtras,
                     collectedPartialResult, frameNumber,
                     hasInputBufferInRequest, request.zslCapture && request.stillCapture,
-                    request.physicalMetadatas);
+                    request.cameraIdsWithZoom, request.physicalMetadatas);
             }
         }
 
@@ -4000,7 +4055,7 @@
                 sendCaptureResult(r.pendingMetadata, r.resultExtras,
                     r.collectedPartialResult, msg.frame_number,
                     r.hasInputBuffer, r.zslCapture && r.stillCapture,
-                    r.physicalMetadatas);
+                    r.cameraIdsWithZoom, r.physicalMetadatas);
             }
             bool timestampIncreasing = !(r.zslCapture || r.hasInputBuffer);
             returnOutputBuffers(r.pendingOutputBuffers.array(),
@@ -4045,13 +4100,18 @@
 Camera3Device::HalInterface::HalInterface(
             sp<ICameraDeviceSession> &session,
             std::shared_ptr<RequestMetadataQueue> queue,
-            bool useHalBufManager) :
+            bool useHalBufManager, bool supportOfflineProcessing) :
         mHidlSession(session),
         mRequestMetadataQueue(queue),
         mUseHalBufManager(useHalBufManager),
-        mIsReconfigurationQuerySupported(true) {
+        mIsReconfigurationQuerySupported(true),
+        mSupportOfflineProcessing(supportOfflineProcessing) {
     // Check with hardware service manager if we can downcast these interfaces
     // Somewhat expensive, so cache the results at startup
+    auto castResult_3_6 = device::V3_6::ICameraDeviceSession::castFrom(mHidlSession);
+    if (castResult_3_6.isOk()) {
+        mHidlSession_3_6 = castResult_3_6;
+    }
     auto castResult_3_5 = device::V3_5::ICameraDeviceSession::castFrom(mHidlSession);
     if (castResult_3_5.isOk()) {
         mHidlSession_3_5 = castResult_3_5;
@@ -4066,18 +4126,22 @@
     }
 }
 
-Camera3Device::HalInterface::HalInterface() : mUseHalBufManager(false) {}
+Camera3Device::HalInterface::HalInterface() :
+        mUseHalBufManager(false),
+        mSupportOfflineProcessing(false) {}
 
 Camera3Device::HalInterface::HalInterface(const HalInterface& other) :
         mHidlSession(other.mHidlSession),
         mRequestMetadataQueue(other.mRequestMetadataQueue),
-        mUseHalBufManager(other.mUseHalBufManager) {}
+        mUseHalBufManager(other.mUseHalBufManager),
+        mSupportOfflineProcessing(other.mSupportOfflineProcessing) {}
 
 bool Camera3Device::HalInterface::valid() {
     return (mHidlSession != nullptr);
 }
 
 void Camera3Device::HalInterface::clear() {
+    mHidlSession_3_6.clear();
     mHidlSession_3_5.clear();
     mHidlSession_3_4.clear();
     mHidlSession_3_3.clear();
@@ -4753,6 +4817,38 @@
     }
 }
 
+status_t Camera3Device::HalInterface::switchToOffline(
+        const std::vector<int32_t>& streamsToKeep,
+        /*out*/hardware::camera::device::V3_6::CameraOfflineSessionInfo* offlineSessionInfo,
+        /*out*/sp<hardware::camera::device::V3_6::ICameraOfflineSession>* offlineSession) {
+    ATRACE_NAME("CameraHal::switchToOffline");
+    if (!valid() || mHidlSession_3_6 == nullptr) {
+        ALOGE("%s called on invalid camera!", __FUNCTION__);
+        return INVALID_OPERATION;
+    }
+
+    if (offlineSessionInfo == nullptr || offlineSession == nullptr) {
+        ALOGE("%s: offlineSessionInfo and offlineSession must not be null!", __FUNCTION__);
+        return INVALID_OPERATION;
+    }
+
+    common::V1_0::Status status = common::V1_0::Status::INTERNAL_ERROR;
+
+    auto resultCallback =
+        [&status, &offlineSessionInfo, &offlineSession] (auto s, auto info, auto session) {
+                status = s;
+                *offlineSessionInfo = info;
+                *offlineSession = session;
+        };
+    auto err = mHidlSession_3_6->switchToOffline(streamsToKeep, resultCallback);
+
+    if (!err.isOk()) {
+        ALOGE("%s: Transaction error: %s", __FUNCTION__, err.description().c_str());
+        return DEAD_OBJECT;
+    }
+    return CameraProviderManager::mapToStatusT(status);
+}
+
 void Camera3Device::HalInterface::getInflightBufferKeys(
         std::vector<std::pair<int32_t, int32_t>>* out) {
     std::lock_guard<std::mutex> lock(mInflightLock);
@@ -5130,6 +5226,7 @@
         *lastFrameNumber = mRepeatingLastFrameNumber;
     }
     mRepeatingLastFrameNumber = hardware::camera2::ICameraDeviceUser::NO_IN_FLIGHT_REPEATING_FRAMES;
+    mRequestSignal.signal();
     return OK;
 }
 
@@ -5395,6 +5492,9 @@
 bool Camera3Device::RequestThread::threadLoop() {
     ATRACE_CALL();
     status_t res;
+    // Any function called from threadLoop() must not hold mInterfaceLock since
+    // it could lead to deadlocks (disconnect() -> hold mInterfaceMutex -> wait for request thread
+    // to finish -> request thread waits on mInterfaceMutex) http://b/143513518
 
     // Handle paused state.
     if (waitIfPaused()) {
@@ -5523,6 +5623,7 @@
         Mutex::Autolock l(mRequestLock);
         mNextRequests.clear();
     }
+    mRequestSubmittedSignal.signal();
 
     return submitRequestSuccess;
 }
@@ -5559,6 +5660,7 @@
                 // request in a batch as new
                 !(batchedRequest && i > 0);
         if (newRequest) {
+            std::set<std::string> cameraIdsWithZoom;
             /**
              * HAL workaround:
              * Insert a dummy trigger ID if a trigger is set but no trigger ID is
@@ -5591,6 +5693,28 @@
                             return INVALID_OPERATION;
                         }
                     }
+
+                    for (it = captureRequest->mSettingsList.begin();
+                            it != captureRequest->mSettingsList.end(); it++) {
+                        if (parent->mZoomRatioMappers.find(it->cameraId) ==
+                                parent->mZoomRatioMappers.end()) {
+                            continue;
+                        }
+
+                        camera_metadata_entry_t e = it->metadata.find(ANDROID_CONTROL_ZOOM_RATIO);
+                        if (e.count > 0 && e.data.f[0] != 1.0f) {
+                            cameraIdsWithZoom.insert(it->cameraId);
+                        }
+
+                        res = parent->mZoomRatioMappers[it->cameraId].updateCaptureRequest(
+                            &(it->metadata));
+                        if (res != OK) {
+                            SET_ERR("RequestThread: Unable to correct capture requests "
+                                    "for zoom ratio for request %d: %s (%d)",
+                                    halRequest->frame_number, strerror(-res), res);
+                            return INVALID_OPERATION;
+                        }
+                    }
                 }
             }
 
@@ -5601,6 +5725,7 @@
             captureRequest->mSettingsList.begin()->metadata.sort();
             halRequest->settings = captureRequest->mSettingsList.begin()->metadata.getAndLock();
             mPrevRequest = captureRequest;
+            mPrevCameraIdsWithZoom = cameraIdsWithZoom;
             ALOGVV("%s: Request settings are NEW", __FUNCTION__);
 
             IF_ALOGV() {
@@ -5788,7 +5913,7 @@
                 /*hasInput*/halRequest->input_buffer != NULL,
                 hasCallback,
                 calculateMaxExpectedDuration(halRequest->settings),
-                requestedPhysicalCameras, isStillCapture, isZslCapture,
+                requestedPhysicalCameras, isStillCapture, isZslCapture, mPrevCameraIdsWithZoom,
                 (mUseHalBufManager) ? uniqueSurfaceIdMap :
                                       SurfaceMap{});
         ALOGVV("%s: registered in flight requestId = %" PRId32 ", frameNumber = %" PRId64
@@ -5902,6 +6027,32 @@
     mStreamIdsToBeDrained = streamIds;
 }
 
+status_t Camera3Device::RequestThread::switchToOffline(
+        const std::vector<int32_t>& streamsToKeep,
+        /*out*/hardware::camera::device::V3_6::CameraOfflineSessionInfo* offlineSessionInfo,
+        /*out*/sp<hardware::camera::device::V3_6::ICameraOfflineSession>* offlineSession) {
+    Mutex::Autolock l(mRequestLock);
+    clearRepeatingRequestsLocked(/*lastFrameNumber*/nullptr);
+
+    // Theoretically we should also check for mRepeatingRequests.empty(), but the API interface
+    // is serialized by mInterfaceLock so skip that check.
+    bool queueEmpty = mNextRequests.empty() && mRequestQueue.empty();
+    while (!queueEmpty) {
+        status_t res = mRequestSubmittedSignal.waitRelative(mRequestLock, kRequestSubmitTimeout);
+        if (res == TIMED_OUT) {
+            ALOGE("%s: request thread failed to submit a request within timeout!", __FUNCTION__);
+            return res;
+        } else if (res != OK) {
+            ALOGE("%s: request thread failed to submit a request: %s (%d)!",
+                    __FUNCTION__, strerror(-res), res);
+            return res;
+        }
+        queueEmpty = mNextRequests.empty() && mRequestQueue.empty();
+    }
+    return mInterface->switchToOffline(
+            streamsToKeep, offlineSessionInfo, offlineSession);
+}
+
 nsecs_t Camera3Device::getExpectedInFlightDuration() {
     ATRACE_CALL();
     Mutex::Autolock al(mInFlightLock);
@@ -6811,4 +6962,34 @@
     return res;
 }
 
+status_t Camera3Device::switchToOffline(
+        const std::vector<int32_t>& streamsToKeep,
+        /*out*/ sp<CameraOfflineSessionBase>* session) {
+    ATRACE_CALL();
+    if (session == nullptr) {
+        ALOGE("%s: session must not be null", __FUNCTION__);
+        return BAD_VALUE;
+    }
+
+    Mutex::Autolock il(mInterfaceLock);
+    Mutex::Autolock l(mLock);
+
+    // 1. Stop repeating request, wait until request thread submitted all requests, then
+    //    call HAL switchToOffline
+    hardware::camera::device::V3_6::CameraOfflineSessionInfo offlineSessionInfo;
+    sp<hardware::camera::device::V3_6::ICameraOfflineSession> offlineSession;
+
+    mRequestThread->switchToOffline(streamsToKeep, &offlineSessionInfo, &offlineSession);
+
+
+    // 2. Verify offlineSessionInfo
+    // 3. create Camera3OfflineSession and transfer object ownership
+    //   (streams, inflight requests, buffer caches)
+    *session = new Camera3OfflineSession(mId);
+
+    // 4. Delete unneeded streams
+    // 5. Verify Camera3Device is in unconfigured state
+    return OK;
+}
+
 }; // namespace android
diff --git a/services/camera/libcameraservice/device3/Camera3Device.h b/services/camera/libcameraservice/device3/Camera3Device.h
index 2573b48..5faabd1 100644
--- a/services/camera/libcameraservice/device3/Camera3Device.h
+++ b/services/camera/libcameraservice/device3/Camera3Device.h
@@ -34,6 +34,7 @@
 #include <android/hardware/camera/device/3.3/ICameraDeviceSession.h>
 #include <android/hardware/camera/device/3.4/ICameraDeviceSession.h>
 #include <android/hardware/camera/device/3.5/ICameraDeviceSession.h>
+#include <android/hardware/camera/device/3.6/ICameraDeviceSession.h>
 #include <android/hardware/camera/device/3.2/ICameraDeviceCallback.h>
 #include <android/hardware/camera/device/3.4/ICameraDeviceCallback.h>
 #include <android/hardware/camera/device/3.5/ICameraDeviceCallback.h>
@@ -45,6 +46,7 @@
 #include "device3/StatusTracker.h"
 #include "device3/Camera3BufferManager.h"
 #include "device3/DistortionMapper.h"
+#include "device3/ZoomRatioMapper.h"
 #include "utils/TagMonitor.h"
 #include "utils/LatencyHistogram.h"
 #include <camera_metadata_hidden.h>
@@ -196,6 +198,9 @@
 
     nsecs_t getExpectedInFlightDuration() override;
 
+    status_t switchToOffline(const std::vector<int32_t>& streamsToKeep,
+            /*out*/ sp<CameraOfflineSessionBase>* session) override;
+
     /**
      * Helper functions to map between framework and HIDL values
      */
@@ -282,7 +287,7 @@
       public:
         HalInterface(sp<hardware::camera::device::V3_2::ICameraDeviceSession> &session,
                      std::shared_ptr<RequestMetadataQueue> queue,
-                     bool useHalBufManager);
+                     bool useHalBufManager, bool supportOfflineProcessing);
         HalInterface(const HalInterface &other);
         HalInterface();
 
@@ -316,6 +321,11 @@
         bool isReconfigurationRequired(CameraMetadata& oldSessionParams,
                 CameraMetadata& newSessionParams);
 
+        status_t switchToOffline(
+                const std::vector<int32_t>& streamsToKeep,
+                /*out*/hardware::camera::device::V3_6::CameraOfflineSessionInfo* offlineSessionInfo,
+                /*out*/sp<hardware::camera::device::V3_6::ICameraOfflineSession>* offlineSession);
+
         // method to extract buffer's unique ID
         // return pair of (newlySeenBuffer?, bufferId)
         std::pair<bool, uint64_t> getBufferId(const buffer_handle_t& buf, int streamId);
@@ -352,6 +362,8 @@
         sp<hardware::camera::device::V3_4::ICameraDeviceSession> mHidlSession_3_4;
         // Valid if ICameraDeviceSession is @3.5 or newer
         sp<hardware::camera::device::V3_5::ICameraDeviceSession> mHidlSession_3_5;
+        // Valid if ICameraDeviceSession is @3.6 or newer
+        sp<hardware::camera::device::V3_6::ICameraDeviceSession> mHidlSession_3_6;
 
         std::shared_ptr<RequestMetadataQueue> mRequestMetadataQueue;
 
@@ -424,11 +436,14 @@
 
         const bool mUseHalBufManager;
         bool mIsReconfigurationQuerySupported;
+
+        const bool mSupportOfflineProcessing;
     };
 
     sp<HalInterface> mInterface;
 
     CameraMetadata             mDeviceInfo;
+    bool                       mSupportNativeZoomRatio;
     std::unordered_map<std::string, CameraMetadata> mPhysicalDeviceInfoMap;
 
     CameraMetadata             mRequestTemplateCache[CAMERA3_TEMPLATE_COUNT];
@@ -842,6 +857,11 @@
 
         void signalPipelineDrain(const std::vector<int>& streamIds);
 
+        status_t switchToOffline(
+                const std::vector<int32_t>& streamsToKeep,
+                /*out*/hardware::camera::device::V3_6::CameraOfflineSessionInfo* offlineSessionInfo,
+                /*out*/sp<hardware::camera::device::V3_6::ICameraOfflineSession>* offlineSession);
+
       protected:
 
         virtual bool threadLoop();
@@ -862,6 +882,9 @@
 
         static const nsecs_t kRequestTimeout = 50e6; // 50 ms
 
+        // TODO: does this need to be adjusted for long exposure requests?
+        static const nsecs_t kRequestSubmitTimeout = 200e6; // 200 ms
+
         // Used to prepare a batch of requests.
         struct NextRequest {
             sp<CaptureRequest>              captureRequest;
@@ -936,6 +959,7 @@
 
         Mutex              mRequestLock;
         Condition          mRequestSignal;
+        Condition          mRequestSubmittedSignal;
         RequestList        mRequestQueue;
         RequestList        mRepeatingRequests;
         // The next batch of requests being prepped for submission to the HAL, no longer
@@ -958,6 +982,7 @@
 
         sp<CaptureRequest> mPrevRequest;
         int32_t            mPrevTriggers;
+        std::set<std::string> mPrevCameraIdsWithZoom;
 
         uint32_t           mFrameNumber;
 
@@ -1056,6 +1081,9 @@
         // Indicates a ZSL capture request
         bool zslCapture;
 
+        // Requested camera ids (both logical and physical) with zoomRatio != 1.0f
+        std::set<std::string> cameraIdsWithZoom;
+
         // What shared surfaces an output should go to
         SurfaceMap outputSurfaces;
 
@@ -1077,7 +1105,7 @@
         InFlightRequest(int numBuffers, CaptureResultExtras extras, bool hasInput,
                 bool hasAppCallback, nsecs_t maxDuration,
                 const std::set<String8>& physicalCameraIdSet, bool isStillCapture,
-                bool isZslCapture,
+                bool isZslCapture, const std::set<std::string>& idsWithZoom,
                 const SurfaceMap& outSurfaces = SurfaceMap{}) :
                 shutterTimestamp(0),
                 sensorTimestamp(0),
@@ -1092,6 +1120,7 @@
                 physicalCameraIds(physicalCameraIdSet),
                 stillCapture(isStillCapture),
                 zslCapture(isZslCapture),
+                cameraIdsWithZoom(idsWithZoom),
                 outputSurfaces(outSurfaces) {
         }
     };
@@ -1109,7 +1138,7 @@
     status_t registerInFlight(uint32_t frameNumber,
             int32_t numBuffers, CaptureResultExtras resultExtras, bool hasInput,
             bool callback, nsecs_t maxExpectedDuration, std::set<String8>& physicalCameraIds,
-            bool isStillCapture, bool isZslCapture,
+            bool isStillCapture, bool isZslCapture, const std::set<std::string>& cameraIdsWithZoom,
             const SurfaceMap& outputSurfaces);
 
     /**
@@ -1234,6 +1263,7 @@
             CaptureResultExtras &resultExtras,
             CameraMetadata &collectedPartialResult, uint32_t frameNumber,
             bool reprocess, bool zslStillCapture,
+            const std::set<std::string>& cameraIdsWithZoom,
             const std::vector<PhysicalCaptureResultInfo>& physicalMetadatas);
 
     bool isLastFullResult(const InFlightRequest& inFlightRequest);
@@ -1266,6 +1296,11 @@
     // logical camera and its physical subcameras.
     std::unordered_map<std::string, camera3::DistortionMapper> mDistortionMappers;
 
+    /**
+     * Zoom ratio mapper support
+     */
+    std::unordered_map<std::string, camera3::ZoomRatioMapper> mZoomRatioMappers;
+
     // Debug tracker for metadata tag value changes
     // - Enabled with the -m <taglist> option to dumpsys, such as
     //   dumpsys -m android.control.aeState,android.control.aeMode
@@ -1364,6 +1399,9 @@
     // Fix up result metadata for monochrome camera.
     bool mNeedFixupMonochromeTags;
     status_t fixupMonochromeTags(const CameraMetadata& deviceInfo, CameraMetadata& resultMetadata);
+
+    // Whether HAL supports offline processing capability.
+    bool mSupportOfflineProcessing = false;
 }; // class Camera3Device
 
 }; // namespace android
diff --git a/services/camera/libcameraservice/device3/Camera3OfflineSession.cpp b/services/camera/libcameraservice/device3/Camera3OfflineSession.cpp
new file mode 100644
index 0000000..dc5cbb3
--- /dev/null
+++ b/services/camera/libcameraservice/device3/Camera3OfflineSession.cpp
@@ -0,0 +1,118 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT 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-OffLnSsn"
+#define ATRACE_TAG ATRACE_TAG_CAMERA
+//#define LOG_NDEBUG 0
+//#define LOG_NNDEBUG 0  // Per-frame verbose logging
+
+#ifdef LOG_NNDEBUG
+#define ALOGVV(...) ALOGV(__VA_ARGS__)
+#else
+#define ALOGVV(...) ((void)0)
+#endif
+
+#include <inttypes.h>
+
+#include <utils/Trace.h>
+
+#include "device3/Camera3OfflineSession.h"
+#include "device3/Camera3OutputStream.h"
+#include "device3/Camera3InputStream.h"
+#include "device3/Camera3SharedOutputStream.h"
+
+using namespace android::camera3;
+using namespace android::hardware::camera;
+
+namespace android {
+
+Camera3OfflineSession::Camera3OfflineSession(const String8 &id):
+        mId(id)
+{
+    ATRACE_CALL();
+    ALOGV("%s: Created offline session for camera %s", __FUNCTION__, mId.string());
+}
+
+Camera3OfflineSession::~Camera3OfflineSession()
+{
+    ATRACE_CALL();
+    ALOGV("%s: Tearing down offline session for camera id %s", __FUNCTION__, mId.string());
+}
+
+const String8& Camera3OfflineSession::getId() const {
+    return mId;
+}
+
+status_t Camera3OfflineSession::initialize(
+        sp<hardware::camera::device::V3_6::ICameraOfflineSession> /*hidlSession*/) {
+    ATRACE_CALL();
+    return OK;
+}
+
+status_t Camera3OfflineSession::dump(int /*fd*/) {
+    ATRACE_CALL();
+    return OK;
+}
+
+status_t Camera3OfflineSession::abort() {
+    ATRACE_CALL();
+    return OK;
+}
+
+status_t Camera3OfflineSession::disconnect() {
+    ATRACE_CALL();
+    return OK;
+}
+
+status_t Camera3OfflineSession::waitForNextFrame(nsecs_t /*timeout*/) {
+    ATRACE_CALL();
+    return OK;
+}
+
+status_t Camera3OfflineSession::getNextResult(CaptureResult* /*frame*/) {
+    ATRACE_CALL();
+    return OK;
+}
+
+hardware::Return<void> Camera3OfflineSession::processCaptureResult_3_4(
+        const hardware::hidl_vec<
+                hardware::camera::device::V3_4::CaptureResult>& /*results*/) {
+    return hardware::Void();
+}
+
+hardware::Return<void> Camera3OfflineSession::processCaptureResult(
+        const hardware::hidl_vec<
+                hardware::camera::device::V3_2::CaptureResult>& /*results*/) {
+    return hardware::Void();
+}
+
+hardware::Return<void> Camera3OfflineSession::notify(
+        const hardware::hidl_vec<hardware::camera::device::V3_2::NotifyMsg>& /*msgs*/) {
+    return hardware::Void();
+}
+
+hardware::Return<void> Camera3OfflineSession::requestStreamBuffers(
+        const hardware::hidl_vec<hardware::camera::device::V3_5::BufferRequest>& /*bufReqs*/,
+        requestStreamBuffers_cb /*_hidl_cb*/) {
+    return hardware::Void();
+}
+
+hardware::Return<void> Camera3OfflineSession::returnStreamBuffers(
+        const hardware::hidl_vec<hardware::camera::device::V3_2::StreamBuffer>& /*buffers*/) {
+    return hardware::Void();
+}
+
+}; // namespace android
diff --git a/services/camera/libcameraservice/device3/Camera3OfflineSession.h b/services/camera/libcameraservice/device3/Camera3OfflineSession.h
new file mode 100644
index 0000000..30e8c4f
--- /dev/null
+++ b/services/camera/libcameraservice/device3/Camera3OfflineSession.h
@@ -0,0 +1,126 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES 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_CAMERA3OFFLINESESSION_H
+#define ANDROID_SERVERS_CAMERA3OFFLINESESSION_H
+
+#include <utils/String8.h>
+#include <utils/String16.h>
+
+#include <android/hardware/camera/device/3.6/ICameraOfflineSession.h>
+#include <fmq/MessageQueue.h>
+
+#include "common/CameraOfflineSessionBase.h"
+
+#include "device3/Camera3BufferManager.h"
+#include "device3/DistortionMapper.h"
+#include "utils/TagMonitor.h"
+#include "utils/LatencyHistogram.h"
+#include <camera_metadata_hidden.h>
+
+namespace android {
+
+namespace camera3 {
+
+class Camera3Stream;
+class Camera3OutputStreamInterface;
+class Camera3StreamInterface;
+
+} // namespace camera3
+
+/**
+ * Camera3OfflineSession for offline session defined in HIDL ICameraOfflineSession@3.6 or higher
+ */
+class Camera3OfflineSession :
+            public CameraOfflineSessionBase,
+            virtual public hardware::camera::device::V3_5::ICameraDeviceCallback {
+
+  public:
+
+    // initialize by Camera3Device. Camera3Device must send all info in separate argument.
+    // monitored tags
+    // mUseHalBufManager
+    // mUsePartialResult
+    // mNumPartialResults
+    explicit Camera3OfflineSession(const String8& id);
+
+    virtual ~Camera3OfflineSession();
+
+    status_t initialize(
+        sp<hardware::camera::device::V3_6::ICameraOfflineSession> hidlSession);
+
+    /**
+     * CameraOfflineSessionBase interface
+     */
+    const String8& getId() const override;
+
+    status_t disconnect() override;
+
+    status_t dump(int fd) override;
+
+    status_t abort() override;
+
+    // methods for capture result passing
+    status_t waitForNextFrame(nsecs_t timeout) override;
+    status_t getNextResult(CaptureResult *frame) override;
+
+    // TODO: methods for notification (error/idle/finished etc) passing
+
+    /**
+     * End of CameraOfflineSessionBase interface
+     */
+
+    /**
+     * HIDL ICameraDeviceCallback interface
+     */
+
+    /**
+     * Implementation of android::hardware::camera::device::V3_5::ICameraDeviceCallback
+     */
+
+    hardware::Return<void> processCaptureResult_3_4(
+            const hardware::hidl_vec<
+                    hardware::camera::device::V3_4::CaptureResult>& results) override;
+    hardware::Return<void> processCaptureResult(
+            const hardware::hidl_vec<
+                    hardware::camera::device::V3_2::CaptureResult>& results) override;
+    hardware::Return<void> notify(
+            const hardware::hidl_vec<
+                    hardware::camera::device::V3_2::NotifyMsg>& msgs) override;
+
+    hardware::Return<void> requestStreamBuffers(
+            const hardware::hidl_vec<
+                    hardware::camera::device::V3_5::BufferRequest>& bufReqs,
+            requestStreamBuffers_cb _hidl_cb) override;
+
+    hardware::Return<void> returnStreamBuffers(
+            const hardware::hidl_vec<
+                    hardware::camera::device::V3_2::StreamBuffer>& buffers) override;
+
+    /**
+     * End of CameraOfflineSessionBase interface
+     */
+
+  private:
+
+    // Camera device ID
+    const String8 mId;
+
+}; // class Camera3OfflineSession
+
+}; // namespace android
+
+#endif
diff --git a/services/camera/libcameraservice/device3/CoordinateMapper.cpp b/services/camera/libcameraservice/device3/CoordinateMapper.cpp
new file mode 100644
index 0000000..d62f397
--- /dev/null
+++ b/services/camera/libcameraservice/device3/CoordinateMapper.cpp
@@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT 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 <system/camera_metadata_tags.h>
+
+#include "device3/CoordinateMapper.h"
+
+namespace android {
+
+namespace camera3 {
+
+/**
+ * Metadata keys to correct when adjusting coordinates for distortion correction
+ */
+
+// Both capture request and result
+constexpr std::array<uint32_t, 3> CoordinateMapper::kMeteringRegionsToCorrect = {
+    ANDROID_CONTROL_AF_REGIONS,
+    ANDROID_CONTROL_AE_REGIONS,
+    ANDROID_CONTROL_AWB_REGIONS
+};
+
+// Both capture request and result
+constexpr std::array<uint32_t, 1> CoordinateMapper::kRectsToCorrect = {
+    ANDROID_SCALER_CROP_REGION,
+};
+
+// Only for capture result
+constexpr std::array<uint32_t, 2> CoordinateMapper::kResultPointsToCorrectNoClamp = {
+    ANDROID_STATISTICS_FACE_RECTANGLES, // Says rectangles, is really points
+    ANDROID_STATISTICS_FACE_LANDMARKS,
+};
+
+} // namespace camera3
+
+} // namespace android
diff --git a/services/camera/libcameraservice/device3/CoordinateMapper.h b/services/camera/libcameraservice/device3/CoordinateMapper.h
new file mode 100644
index 0000000..5164856
--- /dev/null
+++ b/services/camera/libcameraservice/device3/CoordinateMapper.h
@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES 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_COORDINATEMAPPER_H
+#define ANDROID_SERVERS_COORDINATEMAPPER_H
+
+#include <array>
+
+namespace android {
+
+namespace camera3 {
+
+class CoordinateMapper {
+    // Right now only stores metadata tags containing 2D coordinates
+    // to be corrected.
+protected:
+    // Metadata key lists to correct
+
+    // Both capture request and result
+    static const std::array<uint32_t, 3> kMeteringRegionsToCorrect;
+
+    // Both capture request and result
+    static const std::array<uint32_t, 1> kRectsToCorrect;
+
+    // Only for capture results; don't clamp
+    static const std::array<uint32_t, 2> kResultPointsToCorrectNoClamp;
+}; // class CoordinateMapper
+
+} // namespace camera3
+
+} // namespace android
+
+#endif
diff --git a/services/camera/libcameraservice/device3/DistortionMapper.cpp b/services/camera/libcameraservice/device3/DistortionMapper.cpp
index ae7af8e..8132225 100644
--- a/services/camera/libcameraservice/device3/DistortionMapper.cpp
+++ b/services/camera/libcameraservice/device3/DistortionMapper.cpp
@@ -27,41 +27,14 @@
 
 namespace camera3 {
 
-/**
- * Metadata keys to correct when adjusting coordinates for distortion correction
- */
-
-// Both capture request and result
-constexpr std::array<uint32_t, 3> DistortionMapper::kMeteringRegionsToCorrect = {
-    ANDROID_CONTROL_AF_REGIONS,
-    ANDROID_CONTROL_AE_REGIONS,
-    ANDROID_CONTROL_AWB_REGIONS
-};
-
-// Only capture request
-constexpr std::array<uint32_t, 1> DistortionMapper::kRequestRectsToCorrect = {
-    ANDROID_SCALER_CROP_REGION,
-};
-
-// Only for capture result
-constexpr std::array<uint32_t, 1> DistortionMapper::kResultRectsToCorrect = {
-    ANDROID_SCALER_CROP_REGION,
-};
-
-// Only for capture result
-constexpr std::array<uint32_t, 2> DistortionMapper::kResultPointsToCorrectNoClamp = {
-    ANDROID_STATISTICS_FACE_RECTANGLES, // Says rectangles, is really points
-    ANDROID_STATISTICS_FACE_LANDMARKS,
-};
-
 
 DistortionMapper::DistortionMapper() : mValidMapping(false), mValidGrids(false) {
 }
 
-bool DistortionMapper::isDistortionSupported(const CameraMetadata &result) {
+bool DistortionMapper::isDistortionSupported(const CameraMetadata &deviceInfo) {
     bool isDistortionCorrectionSupported = false;
     camera_metadata_ro_entry_t distortionCorrectionModes =
-            result.find(ANDROID_DISTORTION_CORRECTION_AVAILABLE_MODES);
+            deviceInfo.find(ANDROID_DISTORTION_CORRECTION_AVAILABLE_MODES);
     for (size_t i = 0; i < distortionCorrectionModes.count; i++) {
         if (distortionCorrectionModes.data.u8[i] !=
                 ANDROID_DISTORTION_CORRECTION_MODE_OFF) {
@@ -124,7 +97,7 @@
                 if (res != OK) return res;
             }
         }
-        for (auto rect : kRequestRectsToCorrect) {
+        for (auto rect : kRectsToCorrect) {
             e = request->find(rect);
             res = mapCorrectedRectToRaw(e.data.i32, e.count / 4, /*clamp*/true);
             if (res != OK) return res;
@@ -160,7 +133,7 @@
                 if (res != OK) return res;
             }
         }
-        for (auto rect : kResultRectsToCorrect) {
+        for (auto rect : kRectsToCorrect) {
             e = result->find(rect);
             res = mapRawRectToCorrected(e.data.i32, e.count / 4, /*clamp*/true);
             if (res != OK) return res;
@@ -390,7 +363,6 @@
     return OK;
 }
 
-
 status_t DistortionMapper::mapCorrectedRectToRaw(int32_t *rects, int rectCount, bool clamp,
         bool simple) const {
     if (!mValidMapping) return INVALID_OPERATION;
diff --git a/services/camera/libcameraservice/device3/DistortionMapper.h b/services/camera/libcameraservice/device3/DistortionMapper.h
index 4c0a1a6..a255003 100644
--- a/services/camera/libcameraservice/device3/DistortionMapper.h
+++ b/services/camera/libcameraservice/device3/DistortionMapper.h
@@ -22,6 +22,7 @@
 #include <mutex>
 
 #include "camera/CameraMetadata.h"
+#include "device3/CoordinateMapper.h"
 
 namespace android {
 
@@ -31,7 +32,7 @@
  * Utilities to transform between raw (distorted) and warped (corrected) coordinate systems
  * for cameras that support geometric distortion
  */
-class DistortionMapper {
+class DistortionMapper : private CoordinateMapper {
   public:
     DistortionMapper();
 
@@ -150,20 +151,6 @@
     // Fuzziness for float inequality tests
     constexpr static float kFloatFuzz = 1e-4;
 
-    // Metadata key lists to correct
-
-    // Both capture request and result
-    static const std::array<uint32_t, 3> kMeteringRegionsToCorrect;
-
-    // Only capture request
-    static const std::array<uint32_t, 1> kRequestRectsToCorrect;
-
-    // Only capture result
-    static const std::array<uint32_t, 1> kResultRectsToCorrect;
-
-    // Only for capture results; don't clamp
-    static const std::array<uint32_t, 2> kResultPointsToCorrectNoClamp;
-
     // Single implementation for various mapCorrectedToRaw methods
     template<typename T>
     status_t mapCorrectedToRawImpl(T* coordPairs, int coordCount, bool clamp, bool simple) const;
diff --git a/services/camera/libcameraservice/device3/ZoomRatioMapper.cpp b/services/camera/libcameraservice/device3/ZoomRatioMapper.cpp
new file mode 100644
index 0000000..84da45a
--- /dev/null
+++ b/services/camera/libcameraservice/device3/ZoomRatioMapper.cpp
@@ -0,0 +1,370 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT 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-ZoomRatioMapper"
+//#define LOG_NDEBUG 0
+
+#include <algorithm>
+
+#include "device3/ZoomRatioMapper.h"
+
+namespace android {
+
+namespace camera3 {
+
+
+status_t ZoomRatioMapper::initZoomRatioInTemplate(CameraMetadata *request) {
+    camera_metadata_entry_t entry;
+    entry = request->find(ANDROID_CONTROL_ZOOM_RATIO);
+    float defaultZoomRatio = 1.0f;
+    if (entry.count == 0) {
+        return request->update(ANDROID_CONTROL_ZOOM_RATIO, &defaultZoomRatio, 1);
+    }
+    return OK;
+}
+
+status_t ZoomRatioMapper::overrideZoomRatioTags(
+        CameraMetadata* deviceInfo, bool* supportNativeZoomRatio) {
+    if (deviceInfo == nullptr || supportNativeZoomRatio == nullptr) {
+        return BAD_VALUE;
+    }
+
+    camera_metadata_entry_t entry;
+    entry = deviceInfo->find(ANDROID_CONTROL_ZOOM_RATIO_RANGE);
+    if (entry.count != 2 && entry.count != 0) return BAD_VALUE;
+
+    // Hal has zoom ratio support
+    if (entry.count == 2) {
+        *supportNativeZoomRatio = true;
+        return OK;
+    }
+
+    // Hal has no zoom ratio support
+    *supportNativeZoomRatio = false;
+
+    entry = deviceInfo->find(ANDROID_SCALER_AVAILABLE_MAX_DIGITAL_ZOOM);
+    if (entry.count != 1) {
+        ALOGI("%s: Camera device doesn't support SCALER_AVAILABLE_MAX_DIGITAL_ZOOM key!",
+                __FUNCTION__);
+        return OK;
+    }
+
+    float zoomRange[] = {1.0f, entry.data.f[0]};
+    status_t res = deviceInfo->update(ANDROID_CONTROL_ZOOM_RATIO_RANGE, zoomRange, 2);
+    if (res != OK) {
+        ALOGE("%s: Failed to update CONTROL_ZOOM_RATIO_RANGE key: %s (%d)",
+                __FUNCTION__, strerror(-res), res);
+        return res;
+    }
+
+    std::vector<int32_t> requestKeys;
+    entry = deviceInfo->find(ANDROID_REQUEST_AVAILABLE_REQUEST_KEYS);
+    if (entry.count > 0) {
+        requestKeys.insert(requestKeys.end(), entry.data.i32, entry.data.i32 + entry.count);
+    }
+    requestKeys.push_back(ANDROID_CONTROL_ZOOM_RATIO);
+    res = deviceInfo->update(ANDROID_REQUEST_AVAILABLE_REQUEST_KEYS,
+            requestKeys.data(), requestKeys.size());
+    if (res != OK) {
+        ALOGE("%s: Failed to update REQUEST_AVAILABLE_REQUEST_KEYS: %s (%d)",
+                __FUNCTION__, strerror(-res), res);
+        return res;
+    }
+
+    std::vector<int32_t> resultKeys;
+    entry = deviceInfo->find(ANDROID_REQUEST_AVAILABLE_RESULT_KEYS);
+    if (entry.count > 0) {
+        resultKeys.insert(resultKeys.end(), entry.data.i32, entry.data.i32 + entry.count);
+    }
+    resultKeys.push_back(ANDROID_CONTROL_ZOOM_RATIO);
+    res = deviceInfo->update(ANDROID_REQUEST_AVAILABLE_RESULT_KEYS,
+            resultKeys.data(), resultKeys.size());
+    if (res != OK) {
+        ALOGE("%s: Failed to update REQUEST_AVAILABLE_RESULT_KEYS: %s (%d)",
+                __FUNCTION__, strerror(-res), res);
+        return res;
+    }
+
+    std::vector<int32_t> charKeys;
+    entry = deviceInfo->find(ANDROID_REQUEST_AVAILABLE_CHARACTERISTICS_KEYS);
+    if (entry.count > 0) {
+        charKeys.insert(charKeys.end(), entry.data.i32, entry.data.i32 + entry.count);
+    }
+    charKeys.push_back(ANDROID_CONTROL_ZOOM_RATIO_RANGE);
+    res = deviceInfo->update(ANDROID_REQUEST_AVAILABLE_CHARACTERISTICS_KEYS,
+            charKeys.data(), charKeys.size());
+    if (res != OK) {
+        ALOGE("%s: Failed to update REQUEST_AVAILABLE_CHARACTERISTICS_KEYS: %s (%d)",
+                __FUNCTION__, strerror(-res), res);
+        return res;
+    }
+
+    return OK;
+}
+
+ZoomRatioMapper::ZoomRatioMapper(const CameraMetadata* deviceInfo,
+        bool supportNativeZoomRatio, bool usePrecorrectArray) {
+    camera_metadata_ro_entry_t entry;
+
+    entry = deviceInfo->find(ANDROID_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE);
+    if (entry.count != 4) return;
+    int32_t arrayW = entry.data.i32[2];
+    int32_t arrayH = entry.data.i32[3];
+
+    entry = deviceInfo->find(ANDROID_SENSOR_INFO_ACTIVE_ARRAY_SIZE);
+    if (entry.count != 4) return;
+    int32_t activeW = entry.data.i32[2];
+    int32_t activeH = entry.data.i32[3];
+
+    if (usePrecorrectArray) {
+        mArrayWidth = arrayW;
+        mArrayHeight = arrayH;
+    } else {
+        mArrayWidth = activeW;
+        mArrayHeight = activeH;
+    }
+    mHalSupportsZoomRatio = supportNativeZoomRatio;
+
+    ALOGV("%s: array size: %d x %d, mHalSupportsZoomRatio %d",
+            __FUNCTION__, mArrayWidth, mArrayHeight, mHalSupportsZoomRatio);
+    mIsValid = true;
+}
+
+status_t ZoomRatioMapper::updateCaptureRequest(CameraMetadata* request) {
+    if (!mIsValid) return INVALID_OPERATION;
+
+    status_t res = OK;
+    bool zoomRatioIs1 = true;
+    camera_metadata_entry_t entry;
+
+    entry = request->find(ANDROID_CONTROL_ZOOM_RATIO);
+    if (entry.count == 1 && entry.data.f[0] != 1.0f) {
+        zoomRatioIs1 = false;
+    }
+
+    if (mHalSupportsZoomRatio && zoomRatioIs1) {
+        res = separateZoomFromCropLocked(request, false/*isResult*/);
+    } else if (!mHalSupportsZoomRatio && !zoomRatioIs1) {
+        res = combineZoomAndCropLocked(request, false/*isResult*/);
+    }
+
+    // If CONTROL_ZOOM_RATIO is in request, but HAL doesn't support
+    // CONTROL_ZOOM_RATIO, remove it from the request.
+    if (!mHalSupportsZoomRatio && entry.count == 1) {
+        request->erase(ANDROID_CONTROL_ZOOM_RATIO);
+    }
+
+    return res;
+}
+
+status_t ZoomRatioMapper::updateCaptureResult(CameraMetadata* result, bool requestedZoomRatioIs1) {
+    if (!mIsValid) return INVALID_OPERATION;
+
+    status_t res = OK;
+
+    if (mHalSupportsZoomRatio && requestedZoomRatioIs1) {
+        res = combineZoomAndCropLocked(result, true/*isResult*/);
+    } else if (!mHalSupportsZoomRatio && !requestedZoomRatioIs1) {
+        res = separateZoomFromCropLocked(result, true/*isResult*/);
+    } else {
+        camera_metadata_entry_t entry = result->find(ANDROID_CONTROL_ZOOM_RATIO);
+        if (entry.count == 0) {
+            float zoomRatio1x = 1.0f;
+            result->update(ANDROID_CONTROL_ZOOM_RATIO, &zoomRatio1x, 1);
+        }
+    }
+
+    return res;
+}
+
+float ZoomRatioMapper::deriveZoomRatio(const CameraMetadata* metadata) {
+    float zoomRatio = 1.0;
+
+    camera_metadata_ro_entry_t entry;
+    entry = metadata->find(ANDROID_SCALER_CROP_REGION);
+    if (entry.count != 4) return zoomRatio;
+
+    // Center of the preCorrection/active size
+    float arrayCenterX = mArrayWidth / 2.0;
+    float arrayCenterY = mArrayHeight / 2.0;
+
+    // Re-map crop region to coordinate system centered to (arrayCenterX,
+    // arrayCenterY).
+    float cropRegionLeft = arrayCenterX - entry.data.i32[0] ;
+    float cropRegionTop = arrayCenterY - entry.data.i32[1];
+    float cropRegionRight = entry.data.i32[0] + entry.data.i32[2] - arrayCenterX;
+    float cropRegionBottom = entry.data.i32[1] + entry.data.i32[3] - arrayCenterY;
+
+    // Calculate the scaling factor for left, top, bottom, right
+    float zoomRatioLeft = std::max(mArrayWidth / (2 * cropRegionLeft), 1.0f);
+    float zoomRatioTop = std::max(mArrayHeight / (2 * cropRegionTop), 1.0f);
+    float zoomRatioRight = std::max(mArrayWidth / (2 * cropRegionRight), 1.0f);
+    float zoomRatioBottom = std::max(mArrayHeight / (2 * cropRegionBottom), 1.0f);
+
+    // Use minimum scaling factor to handle letterboxing or pillarboxing
+    zoomRatio = std::min(std::min(zoomRatioLeft, zoomRatioRight),
+            std::min(zoomRatioTop, zoomRatioBottom));
+
+    ALOGV("%s: derived zoomRatio is %f", __FUNCTION__, zoomRatio);
+    return zoomRatio;
+}
+
+status_t ZoomRatioMapper::separateZoomFromCropLocked(CameraMetadata* metadata, bool isResult) {
+    status_t res;
+    float zoomRatio = deriveZoomRatio(metadata);
+
+    // Update zoomRatio metadata tag
+    res = metadata->update(ANDROID_CONTROL_ZOOM_RATIO, &zoomRatio, 1);
+    if (res != OK) {
+        ALOGE("%s: Failed to update ANDROID_CONTROL_ZOOM_RATIO: %s(%d)",
+                __FUNCTION__, strerror(-res), res);
+        return res;
+    }
+
+    // Scale regions using zoomRatio
+    camera_metadata_entry_t entry;
+    for (auto region : kMeteringRegionsToCorrect) {
+        entry = metadata->find(region);
+        for (size_t j = 0; j < entry.count; j += 5) {
+            int32_t weight = entry.data.i32[j + 4];
+            if (weight == 0) {
+                continue;
+            }
+            // Top-left is inclusively clamped
+            scaleCoordinates(entry.data.i32 + j, 1, zoomRatio, ClampInclusive);
+            // Bottom-right is exclusively clamped
+            scaleCoordinates(entry.data.i32 + j + 2, 1, zoomRatio, ClampExclusive);
+        }
+    }
+
+    for (auto rect : kRectsToCorrect) {
+        entry = metadata->find(rect);
+        scaleRects(entry.data.i32, entry.count / 4, zoomRatio);
+    }
+
+    if (isResult) {
+        for (auto pts : kResultPointsToCorrectNoClamp) {
+            entry = metadata->find(pts);
+            scaleCoordinates(entry.data.i32, entry.count / 2, zoomRatio, ClampOff);
+        }
+    }
+
+    return OK;
+}
+
+status_t ZoomRatioMapper::combineZoomAndCropLocked(CameraMetadata* metadata, bool isResult) {
+    float zoomRatio = 1.0f;
+    camera_metadata_entry_t entry;
+    entry = metadata->find(ANDROID_CONTROL_ZOOM_RATIO);
+    if (entry.count == 1) {
+        zoomRatio = entry.data.f[0];
+    }
+
+    // Unscale regions with zoomRatio
+    status_t res;
+    for (auto region : kMeteringRegionsToCorrect) {
+        entry = metadata->find(region);
+        for (size_t j = 0; j < entry.count; j += 5) {
+            int32_t weight = entry.data.i32[j + 4];
+            if (weight == 0) {
+                continue;
+            }
+            // Top-left is inclusively clamped
+            scaleCoordinates(entry.data.i32 + j, 1, 1.0 / zoomRatio, ClampInclusive);
+            // Bottom-right is exclusively clamped
+            scaleCoordinates(entry.data.i32 + j + 2, 1, 1.0 / zoomRatio, ClampExclusive);
+        }
+    }
+    for (auto rect : kRectsToCorrect) {
+        entry = metadata->find(rect);
+        scaleRects(entry.data.i32, entry.count / 4, 1.0 / zoomRatio);
+    }
+    if (isResult) {
+        for (auto pts : kResultPointsToCorrectNoClamp) {
+            entry = metadata->find(pts);
+            scaleCoordinates(entry.data.i32, entry.count / 2, 1.0 / zoomRatio, ClampOff);
+        }
+    }
+
+    zoomRatio = 1.0;
+    res = metadata->update(ANDROID_CONTROL_ZOOM_RATIO, &zoomRatio, 1);
+    if (res != OK) {
+        return res;
+    }
+
+    return OK;
+}
+
+void ZoomRatioMapper::scaleCoordinates(int32_t* coordPairs, int coordCount,
+        float scaleRatio, ClampMode clamp) {
+    for (int i = 0; i < coordCount * 2; i += 2) {
+        float x = coordPairs[i];
+        float y = coordPairs[i + 1];
+        float xCentered = x - mArrayWidth / 2;
+        float yCentered = y - mArrayHeight / 2;
+        float scaledX = xCentered * scaleRatio;
+        float scaledY = yCentered * scaleRatio;
+        scaledX += mArrayWidth / 2;
+        scaledY += mArrayHeight / 2;
+        // Clamp to within activeArray/preCorrectionActiveArray
+        coordPairs[i] = static_cast<int32_t>(scaledX);
+        coordPairs[i+1] = static_cast<int32_t>(scaledY);
+        if (clamp != ClampOff) {
+            int32_t right, bottom;
+            if (clamp == ClampInclusive) {
+                right = mArrayWidth - 1;
+                bottom = mArrayHeight - 1;
+            } else {
+                right = mArrayWidth;
+                bottom = mArrayHeight;
+            }
+            coordPairs[i] =
+                    std::min(right, std::max(0, coordPairs[i]));
+            coordPairs[i+1] =
+                    std::min(bottom, std::max(0, coordPairs[i+1]));
+        }
+        ALOGV("%s: coordinates: %d, %d", __FUNCTION__, coordPairs[i], coordPairs[i+1]);
+    }
+}
+
+void ZoomRatioMapper::scaleRects(int32_t* rects, int rectCount,
+        float scaleRatio) {
+    for (int i = 0; i < rectCount * 4; i += 4) {
+        // Map from (l, t, width, height) to (l, t, r, b).
+        // [l, t] is inclusive, and [r, b] is exclusive.
+        int32_t coords[4] = {
+            rects[i],
+            rects[i + 1],
+            rects[i] + rects[i + 2],
+            rects[i + 1] + rects[i + 3]
+        };
+
+        // top-left
+        scaleCoordinates(coords, 1, scaleRatio, ClampInclusive);
+        // bottom-right
+        scaleCoordinates(coords+2, 1, scaleRatio, ClampExclusive);
+
+        // Map back to (l, t, width, height)
+        rects[i] = coords[0];
+        rects[i + 1] = coords[1];
+        rects[i + 2] = coords[2] - coords[0];
+        rects[i + 3] = coords[3] - coords[1];
+    }
+}
+
+} // namespace camera3
+
+} // namespace android
diff --git a/services/camera/libcameraservice/device3/ZoomRatioMapper.h b/services/camera/libcameraservice/device3/ZoomRatioMapper.h
new file mode 100644
index 0000000..16b223b
--- /dev/null
+++ b/services/camera/libcameraservice/device3/ZoomRatioMapper.h
@@ -0,0 +1,96 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES 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_ZOOMRATIOMAPPER_H
+#define ANDROID_SERVERS_ZOOMRATIOMAPPER_H
+
+#include <utils/Errors.h>
+#include <array>
+
+#include "camera/CameraMetadata.h"
+#include "device3/CoordinateMapper.h"
+
+namespace android {
+
+namespace camera3 {
+
+/**
+ * Utilities to convert between the new zoomRatio and existing cropRegion
+ * metadata tags. Note that this class does conversions in 2 scenarios:
+ * - HAL supports zoomRatio and the application uses cropRegion, or
+ * - HAL doesn't support zoomRatio, but the application uses zoomRatio
+ */
+class ZoomRatioMapper : private CoordinateMapper {
+  public:
+    ZoomRatioMapper() = default;
+    ZoomRatioMapper(const CameraMetadata *deviceInfo,
+            bool supportNativeZoomRatio, bool usePrecorrectArray);
+    ZoomRatioMapper(const ZoomRatioMapper& other) :
+            mHalSupportsZoomRatio(other.mHalSupportsZoomRatio),
+            mArrayWidth(other.mArrayWidth), mArrayHeight(other.mArrayHeight) {}
+
+    /**
+     * Initialize request template with valid zoomRatio if necessary.
+     */
+    static status_t initZoomRatioInTemplate(CameraMetadata *request);
+
+    /**
+     * Override zoomRatio related tags in the static metadata.
+     */
+    static status_t overrideZoomRatioTags(
+            CameraMetadata* deviceInfo, bool* supportNativeZoomRatio);
+
+    /**
+     * Update capture request to handle both cropRegion and zoomRatio.
+     */
+    status_t updateCaptureRequest(CameraMetadata *request);
+
+    /**
+     * Update capture result to handle both cropRegion and zoomRatio.
+     */
+    status_t updateCaptureResult(CameraMetadata *request, bool requestedZoomRatioIs1);
+
+  public: // Visible for testing. Do not use concurently.
+    enum ClampMode {
+        ClampOff,
+        ClampInclusive,
+        ClampExclusive,
+    };
+
+    void scaleCoordinates(int32_t* coordPairs, int coordCount,
+            float scaleRatio, ClampMode clamp);
+
+    bool isValid() { return mIsValid; }
+  private:
+    // const after construction
+    bool mHalSupportsZoomRatio;
+    // active array / pre-correction array dimension
+    int32_t mArrayWidth, mArrayHeight;
+
+    bool mIsValid = false;
+
+    float deriveZoomRatio(const CameraMetadata* metadata);
+    void scaleRects(int32_t* rects, int rectCount, float scaleRatio);
+
+    status_t separateZoomFromCropLocked(CameraMetadata* metadata, bool isResult);
+    status_t combineZoomAndCropLocked(CameraMetadata* metadata, bool isResult);
+};
+
+} // namespace camera3
+
+} // namespace android
+
+#endif
diff --git a/services/camera/libcameraservice/tests/ZoomRatioTest.cpp b/services/camera/libcameraservice/tests/ZoomRatioTest.cpp
new file mode 100644
index 0000000..300da09
--- /dev/null
+++ b/services/camera/libcameraservice/tests/ZoomRatioTest.cpp
@@ -0,0 +1,457 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT 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 "ZoomRatioMapperTest"
+
+#include <gtest/gtest.h>
+#include <utils/Errors.h>
+
+#include "../device3/ZoomRatioMapper.h"
+
+using namespace std;
+using namespace android;
+using namespace android::camera3;
+
+constexpr int kMaxAllowedPixelError = 1;
+constexpr float kMaxAllowedRatioError = 0.1;
+
+constexpr int32_t testActiveArraySize[] = {100, 100, 1024, 768};
+constexpr int32_t testPreCorrActiveArraySize[] = {90, 90, 1044, 788};
+
+constexpr int32_t testDefaultCropSize[][4] = {
+      {0, 0, 1024, 768},   // active array default crop
+      {0, 0, 1044, 788},   // preCorrection active array default crop
+};
+
+constexpr int32_t test2xCropRegion[][4] = {
+      {256, 192, 512, 384}, // active array 2x zoom crop
+      {261, 197, 522, 394}, // preCorrection active array default crop
+};
+
+constexpr int32_t testLetterBoxSize[][4] = {
+      {0, 96, 1024, 576}, // active array 2x zoom crop
+      {0, 106, 1024, 576}, // preCorrection active array default crop
+};
+
+status_t setupTestMapper(ZoomRatioMapper *m, float maxDigitalZoom,
+        const int32_t activeArray[4], const int32_t preCorrectArray[4],
+        bool hasZoomRatioRange, float zoomRatioRange[2],
+        bool usePreCorrectArray) {
+    CameraMetadata deviceInfo;
+
+    deviceInfo.update(ANDROID_SENSOR_INFO_ACTIVE_ARRAY_SIZE, activeArray, 4);
+    deviceInfo.update(ANDROID_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE, preCorrectArray, 4);
+    deviceInfo.update(ANDROID_SCALER_AVAILABLE_MAX_DIGITAL_ZOOM, &maxDigitalZoom, 1);
+    if (hasZoomRatioRange) {
+        deviceInfo.update(ANDROID_CONTROL_ZOOM_RATIO_RANGE, zoomRatioRange, 2);
+    }
+
+    bool supportNativeZoomRatio;
+    status_t res = ZoomRatioMapper::overrideZoomRatioTags(&deviceInfo, &supportNativeZoomRatio);
+    if (res != OK) {
+        return res;
+    }
+
+    *m = ZoomRatioMapper(&deviceInfo, hasZoomRatioRange, usePreCorrectArray);
+    return OK;
+}
+
+TEST(ZoomRatioTest, Initialization) {
+    CameraMetadata deviceInfo;
+    status_t res;
+    camera_metadata_entry_t entry;
+
+    deviceInfo.update(ANDROID_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE,
+            testPreCorrActiveArraySize, 4);
+    deviceInfo.update(ANDROID_SENSOR_INFO_ACTIVE_ARRAY_SIZE, testActiveArraySize, 4);
+
+    // Test initialization from devices not supporting zoomRange
+    float maxDigitalZoom = 4.0f;
+    ZoomRatioMapper mapperNoZoomRange;
+    deviceInfo.update(ANDROID_SCALER_AVAILABLE_MAX_DIGITAL_ZOOM, &maxDigitalZoom, 1);
+    bool supportNativeZoomRatio;
+    res = ZoomRatioMapper::overrideZoomRatioTags(&deviceInfo, &supportNativeZoomRatio);
+    ASSERT_EQ(res, OK);
+    ASSERT_EQ(supportNativeZoomRatio, false);
+    mapperNoZoomRange = ZoomRatioMapper(&deviceInfo,
+            supportNativeZoomRatio, true/*usePreCorrectArray*/);
+    ASSERT_TRUE(mapperNoZoomRange.isValid());
+    mapperNoZoomRange = ZoomRatioMapper(&deviceInfo,
+            supportNativeZoomRatio, false/*usePreCorrectArray*/);
+    ASSERT_TRUE(mapperNoZoomRange.isValid());
+
+    entry = deviceInfo.find(ANDROID_CONTROL_ZOOM_RATIO_RANGE);
+    ASSERT_EQ(entry.count, 2U);
+    ASSERT_EQ(entry.data.f[0], 1.0);
+    ASSERT_EQ(entry.data.f[1], maxDigitalZoom);
+
+    entry = deviceInfo.find(ANDROID_REQUEST_AVAILABLE_CHARACTERISTICS_KEYS);
+    ASSERT_GT(entry.count, 0U);
+    ASSERT_NE(std::find(entry.data.i32, entry.data.i32 + entry.count,
+            ANDROID_CONTROL_ZOOM_RATIO_RANGE), entry.data.i32 + entry.count);
+
+    entry = deviceInfo.find(ANDROID_REQUEST_AVAILABLE_REQUEST_KEYS);
+    ASSERT_GT(entry.count, 0U);
+    ASSERT_NE(std::find(entry.data.i32, entry.data.i32 + entry.count,
+            ANDROID_CONTROL_ZOOM_RATIO), entry.data.i32 + entry.count);
+
+    entry = deviceInfo.find(ANDROID_REQUEST_AVAILABLE_RESULT_KEYS);
+    ASSERT_GT(entry.count, 0U);
+    ASSERT_NE(std::find(entry.data.i32, entry.data.i32 + entry.count,
+            ANDROID_CONTROL_ZOOM_RATIO), entry.data.i32 + entry.count);
+
+    // Test initialization from devices supporting zoomRange
+    float ratioRange[2] = {0.2f, maxDigitalZoom};
+    deviceInfo.update(ANDROID_CONTROL_ZOOM_RATIO_RANGE, ratioRange, 2);
+    res = ZoomRatioMapper::overrideZoomRatioTags(&deviceInfo, &supportNativeZoomRatio);
+    ASSERT_EQ(res, OK);
+    ASSERT_EQ(supportNativeZoomRatio, true);
+    ZoomRatioMapper mapperWithZoomRange;
+    mapperWithZoomRange = ZoomRatioMapper(&deviceInfo,
+            supportNativeZoomRatio, true/*usePreCorrectArray*/);
+    ASSERT_TRUE(mapperWithZoomRange.isValid());
+    mapperWithZoomRange = ZoomRatioMapper(&deviceInfo,
+            supportNativeZoomRatio, false/*usePreCorrectArray*/);
+    ASSERT_TRUE(mapperWithZoomRange.isValid());
+
+    entry = deviceInfo.find(ANDROID_CONTROL_ZOOM_RATIO_RANGE);
+    ASSERT_EQ(entry.count, 2U);
+    ASSERT_EQ(entry.data.f[0], ratioRange[0]);
+    ASSERT_EQ(entry.data.f[1], ratioRange[1]);
+
+    // Test default zoom ratio in template
+    CameraMetadata requestTemplate;
+    res = ZoomRatioMapper::initZoomRatioInTemplate(&requestTemplate);
+    ASSERT_EQ(res, OK);
+    entry = requestTemplate.find(ANDROID_CONTROL_ZOOM_RATIO);
+    ASSERT_EQ(entry.count, 1U);
+    ASSERT_EQ(entry.data.f[0], 1.0f);
+
+    float customRatio = 0.5f;
+    res = requestTemplate.update(ANDROID_CONTROL_ZOOM_RATIO, &customRatio, 1);
+    ASSERT_EQ(res, OK);
+    res = ZoomRatioMapper::initZoomRatioInTemplate(&requestTemplate);
+    ASSERT_EQ(res, OK);
+    entry = requestTemplate.find(ANDROID_CONTROL_ZOOM_RATIO);
+    ASSERT_EQ(entry.count, 1U);
+    ASSERT_EQ(entry.data.f[0], customRatio);
+}
+
+void subScaleCoordinatesTest(bool usePreCorrectArray) {
+    ZoomRatioMapper mapper;
+    float maxDigitalZoom = 4.0f;
+    float zoomRatioRange[2];
+    ASSERT_EQ(OK, setupTestMapper(&mapper, maxDigitalZoom,
+            testActiveArraySize, testPreCorrActiveArraySize,
+            false/*hasZoomRatioRange*/, zoomRatioRange,
+            usePreCorrectArray));
+
+    size_t index = 0;
+    int32_t width = testActiveArraySize[2];
+    int32_t height = testActiveArraySize[3];
+    if (usePreCorrectArray) {
+        index = 1;
+        width = testPreCorrActiveArraySize[2];
+        height = testPreCorrActiveArraySize[3];
+    }
+
+    std::array<int32_t, 16> originalCoords = {
+            0, 0, // top-left
+            width, 0, // top-right
+            0, height, // bottom-left
+            width, height, // bottom-right
+            width / 2, height / 2, // center
+            width / 4, height / 4, // top-left after 2x
+            width / 3, height * 2 / 3, // bottom-left after 3x zoom
+            width * 7 / 8, height / 2, // middle-right after 1.33x zoom
+    };
+
+    // Verify 1.0x zoom doesn't change the coordinates
+    auto coords = originalCoords;
+    mapper.scaleCoordinates(coords.data(), coords.size()/2, 1.0f, ZoomRatioMapper::ClampOff);
+    for (size_t i = 0; i < coords.size(); i++) {
+        EXPECT_EQ(coords[i], originalCoords[i]);
+    }
+
+    // Verify 2.0x zoom work as expected (no clamping)
+    std::array<float, 16> expected2xCoords = {
+            - width / 2.0f, - height / 2.0f,// top-left
+            width * 3 / 2.0f, - height / 2.0f, // top-right
+            - width / 2.0f, height * 3 / 2.0f, // bottom-left
+            width * 3 / 2.0f, height * 3 / 2.0f, // bottom-right
+            width / 2.0f, height / 2.0f, // center
+            0, 0, // top-left after 2x
+            width / 6.0f, height - height / 6.0f, // bottom-left after 3x zoom
+            width + width / 4.0f, height / 2.0f, // middle-right after 1.33x zoom
+    };
+    coords = originalCoords;
+    mapper.scaleCoordinates(coords.data(), coords.size()/2, 2.0f, ZoomRatioMapper::ClampOff);
+    for (size_t i = 0; i < coords.size(); i++) {
+        EXPECT_LE(std::abs(coords[i] - expected2xCoords[i]), kMaxAllowedPixelError);
+    }
+
+    // Verify 2.0x zoom work as expected (with inclusive clamping)
+    std::array<float, 16> expected2xCoordsClampedInc = {
+            0, 0, // top-left
+            static_cast<float>(width) - 1, 0, // top-right
+            0, static_cast<float>(height) - 1, // bottom-left
+            static_cast<float>(width) - 1, static_cast<float>(height) - 1, // bottom-right
+            width / 2.0f, height / 2.0f, // center
+            0, 0, // top-left after 2x
+            width / 6.0f, height - height / 6.0f , // bottom-left after 3x zoom
+            static_cast<float>(width) - 1,  height / 2.0f, // middle-right after 1.33x zoom
+    };
+    coords = originalCoords;
+    mapper.scaleCoordinates(coords.data(), coords.size()/2, 2.0f, ZoomRatioMapper::ClampInclusive);
+    for (size_t i = 0; i < coords.size(); i++) {
+        EXPECT_LE(std::abs(coords[i] - expected2xCoordsClampedInc[i]), kMaxAllowedPixelError);
+    }
+
+    // Verify 2.0x zoom work as expected (with exclusive clamping)
+    std::array<float, 16> expected2xCoordsClampedExc = {
+            0, 0, // top-left
+            static_cast<float>(width), 0, // top-right
+            0, static_cast<float>(height), // bottom-left
+            static_cast<float>(width), static_cast<float>(height), // bottom-right
+            width / 2.0f, height / 2.0f, // center
+            0, 0, // top-left after 2x
+            width / 6.0f, height - height / 6.0f , // bottom-left after 3x zoom
+            static_cast<float>(width),  height / 2.0f, // middle-right after 1.33x zoom
+    };
+    coords = originalCoords;
+    mapper.scaleCoordinates(coords.data(), coords.size()/2, 2.0f, ZoomRatioMapper::ClampExclusive);
+    for (size_t i = 0; i < coords.size(); i++) {
+        EXPECT_LE(std::abs(coords[i] - expected2xCoordsClampedExc[i]), kMaxAllowedPixelError);
+    }
+
+    // Verify 0.33x zoom work as expected
+    std::array<float, 16> expectedZoomOutCoords = {
+            width / 3.0f, height / 3.0f, // top-left
+            width * 2 / 3.0f, height / 3.0f, // top-right
+            width / 3.0f, height * 2 / 3.0f, // bottom-left
+            width * 2 / 3.0f, height * 2 / 3.0f, // bottom-right
+            width / 2.0f, height / 2.0f, // center
+            width * 5 / 12.0f, height * 5 / 12.0f, // top-left after 2x
+            width * 4 / 9.0f, height * 5 / 9.0f, // bottom-left after 3x zoom-in
+            width * 5 / 8.0f, height / 2.0f, // middle-right after 1.33x zoom-in
+    };
+    coords = originalCoords;
+    mapper.scaleCoordinates(coords.data(), coords.size()/2, 1.0f/3, ZoomRatioMapper::ClampOff);
+    for (size_t i = 0; i < coords.size(); i++) {
+        EXPECT_LE(std::abs(coords[i] - expectedZoomOutCoords[i]), kMaxAllowedPixelError);
+    }
+}
+
+TEST(ZoomRatioTest, scaleCoordinatesTest) {
+    subScaleCoordinatesTest(false/*usePreCorrectArray*/);
+    subScaleCoordinatesTest(true/*usePreCorrectArray*/);
+}
+
+void subCropOverMaxDigitalZoomTest(bool usePreCorrectArray) {
+    status_t res;
+    ZoomRatioMapper mapper;
+    float noZoomRatioRange[2];
+    res = setupTestMapper(&mapper, 4.0/*maxDigitalZoom*/,
+            testActiveArraySize, testPreCorrActiveArraySize,
+            false/*hasZoomRatioRange*/, noZoomRatioRange,
+            usePreCorrectArray);
+    ASSERT_EQ(res, OK);
+
+    CameraMetadata metadata;
+    camera_metadata_entry_t entry;
+
+    size_t index = usePreCorrectArray ? 1 : 0;
+    metadata.update(ANDROID_SCALER_CROP_REGION, testDefaultCropSize[index], 4);
+    res = mapper.updateCaptureRequest(&metadata);
+    ASSERT_EQ(res, OK);
+    entry = metadata.find(ANDROID_SCALER_CROP_REGION);
+    ASSERT_EQ(entry.count, 4U);
+    for (int i = 0; i < 4; i ++) {
+        EXPECT_EQ(entry.data.i32[i], testDefaultCropSize[index][i]);
+    }
+
+    metadata.update(ANDROID_SCALER_CROP_REGION, test2xCropRegion[index], 4);
+    res = mapper.updateCaptureResult(&metadata, true/*requestedZoomRatioIs1*/);
+    ASSERT_EQ(res, OK);
+    entry = metadata.find(ANDROID_SCALER_CROP_REGION);
+    ASSERT_EQ(entry.count, 4U);
+    for (int i = 0; i < 4; i ++) {
+        EXPECT_EQ(entry.data.i32[i], test2xCropRegion[index][i]);
+    }
+    entry = metadata.find(ANDROID_CONTROL_ZOOM_RATIO);
+    ASSERT_TRUE(entry.count == 0 || (entry.count == 1 && entry.data.f[0] == 1.0f));
+}
+
+TEST(ZoomRatioTest, CropOverMaxDigitalZoomTest) {
+    subCropOverMaxDigitalZoomTest(false/*usePreCorrectArray*/);
+    subCropOverMaxDigitalZoomTest(true/*usePreCorrectArray*/);
+}
+
+void subCropOverZoomRangeTest(bool usePreCorrectArray) {
+    status_t res;
+    ZoomRatioMapper mapper;
+    float zoomRatioRange[2] = {0.5f, 4.0f};
+    res = setupTestMapper(&mapper, 4.0/*maxDigitalZoom*/,
+            testActiveArraySize, testPreCorrActiveArraySize,
+            true/*hasZoomRatioRange*/, zoomRatioRange,
+            usePreCorrectArray);
+    ASSERT_EQ(res, OK);
+
+    CameraMetadata metadata;
+    camera_metadata_entry_t entry;
+
+    size_t index = usePreCorrectArray ? 1 : 0;
+
+    // 2x zoom crop region, zoomRatio is 1.0f
+    metadata.update(ANDROID_SCALER_CROP_REGION, test2xCropRegion[index], 4);
+    res = mapper.updateCaptureRequest(&metadata);
+    ASSERT_EQ(res, OK);
+    entry = metadata.find(ANDROID_SCALER_CROP_REGION);
+    ASSERT_EQ(entry.count, 4U);
+    for (int i = 0; i < 4; i++) {
+        EXPECT_EQ(entry.data.i32[i], testDefaultCropSize[index][i]);
+    }
+    entry = metadata.find(ANDROID_CONTROL_ZOOM_RATIO);
+    EXPECT_NEAR(entry.data.f[0], 2.0f, kMaxAllowedRatioError);
+
+    res = mapper.updateCaptureResult(&metadata, true/*requestedZoomRatioIs1*/);
+    ASSERT_EQ(res, OK);
+    entry = metadata.find(ANDROID_CONTROL_ZOOM_RATIO);
+    EXPECT_NEAR(entry.data.f[0], 1.0f, kMaxAllowedRatioError);
+    entry = metadata.find(ANDROID_SCALER_CROP_REGION);
+    ASSERT_EQ(entry.count, 4U);
+    for (int i = 0; i < 4; i++) {
+        EXPECT_EQ(entry.data.i32[i], test2xCropRegion[index][i]);
+    }
+
+    // Letter boxing crop region, zoomRatio is 1.0
+    float zoomRatio = 1.0f;
+    metadata.update(ANDROID_CONTROL_ZOOM_RATIO, &zoomRatio, 1);
+    metadata.update(ANDROID_SCALER_CROP_REGION, testLetterBoxSize[index], 4);
+    res = mapper.updateCaptureRequest(&metadata);
+    ASSERT_EQ(res, OK);
+    entry = metadata.find(ANDROID_SCALER_CROP_REGION);
+    ASSERT_EQ(entry.count, 4U);
+    for (int i = 0; i < 4; i++) {
+        EXPECT_EQ(entry.data.i32[i], testLetterBoxSize[index][i]);
+    }
+    entry = metadata.find(ANDROID_CONTROL_ZOOM_RATIO);
+    EXPECT_NEAR(entry.data.f[0], 1.0f, kMaxAllowedRatioError);
+
+    res = mapper.updateCaptureResult(&metadata, true/*requestedZoomRatioIs1*/);
+    ASSERT_EQ(res, OK);
+    entry = metadata.find(ANDROID_SCALER_CROP_REGION);
+    ASSERT_EQ(entry.count, 4U);
+    for (int i = 0; i < 4; i++) {
+        EXPECT_EQ(entry.data.i32[i], testLetterBoxSize[index][i]);
+    }
+    entry = metadata.find(ANDROID_CONTROL_ZOOM_RATIO);
+    EXPECT_NEAR(entry.data.f[0], 1.0f, kMaxAllowedRatioError);
+}
+
+TEST(ZoomRatioTest, CropOverZoomRangeTest) {
+    subCropOverZoomRangeTest(false/*usePreCorrectArray*/);
+    subCropOverZoomRangeTest(true/*usePreCorrectArray*/);
+}
+
+void subZoomOverMaxDigitalZoomTest(bool usePreCorrectArray) {
+    status_t res;
+    ZoomRatioMapper mapper;
+    float noZoomRatioRange[2];
+    res = setupTestMapper(&mapper, 4.0/*maxDigitalZoom*/,
+            testActiveArraySize, testPreCorrActiveArraySize,
+            false/*hasZoomRatioRange*/, noZoomRatioRange,
+            usePreCorrectArray);
+    ASSERT_EQ(res, OK);
+
+    CameraMetadata metadata;
+    float zoomRatio = 3.0f;
+    camera_metadata_entry_t entry;
+
+    size_t index = usePreCorrectArray ? 1 : 0;
+
+    // Full active array crop, zoomRatio is 3.0f
+    metadata.update(ANDROID_SCALER_CROP_REGION, testDefaultCropSize[index], 4);
+    metadata.update(ANDROID_CONTROL_ZOOM_RATIO, &zoomRatio, 1);
+    res = mapper.updateCaptureRequest(&metadata);
+    ASSERT_EQ(res, OK);
+    entry = metadata.find(ANDROID_SCALER_CROP_REGION);
+    ASSERT_EQ(entry.count, 4U);
+    std::array<float, 4> expectedCrop = {
+        testDefaultCropSize[index][2] / 3.0f, /*x*/
+        testDefaultCropSize[index][3] / 3.0f, /*y*/
+        testDefaultCropSize[index][2] / 3.0f, /*width*/
+        testDefaultCropSize[index][3] / 3.0f, /*height*/
+    };
+    for (int i = 0; i < 4; i++) {
+        EXPECT_LE(std::abs(entry.data.i32[i] - expectedCrop[i]), kMaxAllowedPixelError);
+    }
+
+    entry = metadata.find(ANDROID_CONTROL_ZOOM_RATIO);
+    if (entry.count == 1) {
+        EXPECT_NEAR(entry.data.f[0], 1.0f, kMaxAllowedRatioError);
+    }
+}
+
+TEST(ZoomRatioTest, ZoomOverMaxDigitalZoomTest) {
+    subZoomOverMaxDigitalZoomTest(false/*usePreCorrectArray*/);
+    subZoomOverMaxDigitalZoomTest(true/*usePreCorrectArray*/);
+}
+
+void subZoomOverZoomRangeTest(bool usePreCorrectArray) {
+    status_t res;
+    ZoomRatioMapper mapper;
+    float zoomRatioRange[2] = {1.0f, 4.0f};
+    res = setupTestMapper(&mapper, 4.0/*maxDigitalZoom*/,
+            testActiveArraySize, testPreCorrActiveArraySize,
+            true/*hasZoomRatioRange*/, zoomRatioRange,
+            usePreCorrectArray);
+    ASSERT_EQ(res, OK);
+
+    CameraMetadata metadata;
+    float zoomRatio = 3.0f;
+    camera_metadata_entry_t entry;
+    size_t index = usePreCorrectArray ? 1 : 0;
+
+    // Full active array crop, zoomRatio is 3.0f
+    metadata.update(ANDROID_SCALER_CROP_REGION, testDefaultCropSize[index], 4);
+    metadata.update(ANDROID_CONTROL_ZOOM_RATIO, &zoomRatio, 1);
+    res = mapper.updateCaptureRequest(&metadata);
+    ASSERT_EQ(res, OK);
+    entry = metadata.find(ANDROID_SCALER_CROP_REGION);
+    ASSERT_EQ(entry.count, 4U);
+    for (int i = 0; i < 4; i ++) {
+        EXPECT_EQ(entry.data.i32[i], testDefaultCropSize[index][i]);
+    }
+    entry = metadata.find(ANDROID_CONTROL_ZOOM_RATIO);
+    ASSERT_EQ(entry.data.f[0], zoomRatio);
+
+    res = mapper.updateCaptureResult(&metadata, false/*requestedZoomRatioIs1*/);
+    ASSERT_EQ(res, OK);
+    entry = metadata.find(ANDROID_SCALER_CROP_REGION);
+    ASSERT_EQ(entry.count, 4U);
+    for (int i = 0; i < 4; i ++) {
+        EXPECT_EQ(entry.data.i32[i], testDefaultCropSize[index][i]);
+    }
+    entry = metadata.find(ANDROID_CONTROL_ZOOM_RATIO);
+    ASSERT_EQ(entry.data.f[0], zoomRatio);
+}
+
+TEST(ZoomRatioTest, ZoomOverZoomRangeTest) {
+    subZoomOverZoomRangeTest(false/*usePreCorrectArray*/);
+    subZoomOverZoomRangeTest(true/*usePreCorrectArray*/);
+}
diff --git a/services/mediaanalytics/iface_statsd.h b/services/mediaanalytics/iface_statsd.h
deleted file mode 100644
index 014929b..0000000
--- a/services/mediaanalytics/iface_statsd.h
+++ /dev/null
@@ -1,35 +0,0 @@
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT 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 {
-
-extern bool enabled_statsd;
-
-// component specific dumpers
-extern bool statsd_audiopolicy(MediaAnalyticsItem *);
-extern bool statsd_audiorecord(MediaAnalyticsItem *);
-extern bool statsd_audiothread(MediaAnalyticsItem *);
-extern bool statsd_audiotrack(MediaAnalyticsItem *);
-extern bool statsd_codec(MediaAnalyticsItem *);
-extern bool statsd_extractor(MediaAnalyticsItem *);
-extern bool statsd_nuplayer(MediaAnalyticsItem *);
-extern bool statsd_recorder(MediaAnalyticsItem *);
-
-extern bool statsd_mediadrm(MediaAnalyticsItem *);
-extern bool statsd_widevineCDM(MediaAnalyticsItem *);
-extern bool statsd_drmmanager(MediaAnalyticsItem *);
-
-} // namespace android
diff --git a/services/mediaanalytics/tests/mediametrics_tests.cpp b/services/mediaanalytics/tests/mediametrics_tests.cpp
deleted file mode 100644
index 09ca114..0000000
--- a/services/mediaanalytics/tests/mediametrics_tests.cpp
+++ /dev/null
@@ -1,283 +0,0 @@
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT 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_tests"
-#include <utils/Log.h>
-
-#include "MediaAnalyticsService.h"
-
-#include <stdio.h>
-
-#include <gtest/gtest.h>
-#include <media/MediaAnalyticsItem.h>
-
-using namespace android;
-
-TEST(mediametrics_tests, instantiate) {
-  sp mediaMetrics = new MediaAnalyticsService();
-  status_t status;
-
-  // random keys ignored when empty
-  std::unique_ptr<MediaAnalyticsItem> random_key(MediaAnalyticsItem::create("random_key"));
-  status = mediaMetrics->submit(random_key.get());
-  ASSERT_EQ(PERMISSION_DENIED, status);
-
-  // random keys ignored with data
-  random_key->setInt32("foo", 10);
-  status = mediaMetrics->submit(random_key.get());
-  ASSERT_EQ(PERMISSION_DENIED, status);
-
-  // known keys ignored if empty
-  std::unique_ptr<MediaAnalyticsItem> audiotrack_key(MediaAnalyticsItem::create("audiotrack"));
-  status = mediaMetrics->submit(audiotrack_key.get());
-  ASSERT_EQ(BAD_VALUE, status);
-
-  // known keys not ignored if not empty
-  audiotrack_key->addInt32("foo", 10);
-  status = mediaMetrics->submit(audiotrack_key.get());
-  ASSERT_EQ(NO_ERROR, status);
-
-
-  /*
-  // fluent style that goes directly to mediametrics
-  ASSERT_EQ(true, MediaAnalyticsItem("audiorecord")
-                     .setInt32("value", 2)
-                     .addInt32("bar", 1)
-                     .addInt32("value", 3)
-                     .selfrecord());
-  */
-
-  mediaMetrics->dump(fileno(stdout), {} /* args */);
-}
-
-TEST(mediametrics_tests, item_manipulation) {
-  MediaAnalyticsItem item("audiorecord");
-
-  item.setInt32("value", 2).addInt32("bar", 3).addInt32("value", 4);
-
-  int32_t i32;
-  ASSERT_TRUE(item.getInt32("value", &i32));
-  ASSERT_EQ(6, i32);
-
-  ASSERT_TRUE(item.getInt32("bar", &i32));
-  ASSERT_EQ(3, i32);
-
-  item.setInt64("big", INT64_MAX).setInt64("smaller", INT64_MAX - 1).addInt64("smaller", -2);
-
-  int64_t i64;
-  ASSERT_TRUE(item.getInt64("big", &i64));
-  ASSERT_EQ(INT64_MAX, i64);
-
-  ASSERT_TRUE(item.getInt64("smaller", &i64));
-  ASSERT_EQ(INT64_MAX - 3, i64);
-
-  item.setDouble("precise", 10.5).setDouble("small", 0.125).addDouble("precise", 0.25);
-
-  double d;
-  ASSERT_TRUE(item.getDouble("precise", &d));
-  ASSERT_EQ(10.75, d);
-
-  ASSERT_TRUE(item.getDouble("small", &d));
-  ASSERT_EQ(0.125, d);
-
-  char *s;
-  item.setCString("name", "Frank").setCString("mother", "June").setCString("mother", "July");
-  ASSERT_TRUE(item.getCString("name", &s));
-  ASSERT_EQ(0, strcmp(s, "Frank"));
-  free(s);
-
-  ASSERT_TRUE(item.getCString("mother", &s));
-  ASSERT_EQ(0, strcmp(s, "July"));  // "July" overwrites "June"
-  free(s);
-
-  item.setRate("burgersPerHour", 5, 2);
-  int64_t b, h;
-  ASSERT_TRUE(item.getRate("burgersPerHour", &b, &h, &d));
-  ASSERT_EQ(5, b);
-  ASSERT_EQ(2, h);
-  ASSERT_EQ(2.5, d);
-
-  item.addRate("burgersPerHour", 4, 2);
-  ASSERT_TRUE(item.getRate("burgersPerHour", &b, &h, &d));
-  ASSERT_EQ(9, b);
-  ASSERT_EQ(4, h);
-  ASSERT_EQ(2.25, d);
-
-  printf("item: %s\n", item.toString().c_str());
-  fflush(stdout);
-
-  sp mediaMetrics = new MediaAnalyticsService();
-  status_t status = mediaMetrics->submit(&item);
-  ASSERT_EQ(NO_ERROR, status);
-  mediaMetrics->dump(fileno(stdout), {} /* args */);
-}
-
-TEST(mediametrics_tests, superbig_item) {
-  MediaAnalyticsItem item("TheBigOne");
-  constexpr size_t count = 10000;
-
-  for (size_t i = 0; i < count; ++i) {
-    item.setInt32(std::to_string(i).c_str(), i);
-  }
-  for (size_t i = 0; i < count; ++i) {
-    int32_t i32;
-    ASSERT_TRUE(item.getInt32(std::to_string(i).c_str(), &i32));
-    ASSERT_EQ((int32_t)i, i32);
-  }
-}
-
-TEST(mediametrics_tests, superbig_item_removal) {
-  MediaAnalyticsItem item("TheOddBigOne");
-  constexpr size_t count = 10000;
-
-  for (size_t i = 0; i < count; ++i) {
-    item.setInt32(std::to_string(i).c_str(), i);
-  }
-  for (size_t i = 0; i < count; i += 2) {
-    item.filter(std::to_string(i).c_str()); // filter out all the evens.
-  }
-  for (size_t i = 0; i < count; ++i) {
-    int32_t i32;
-    if (i & 1) { // check to see that only the odds are left.
-        ASSERT_TRUE(item.getInt32(std::to_string(i).c_str(), &i32));
-        ASSERT_EQ((int32_t)i, i32);
-    } else {
-        ASSERT_FALSE(item.getInt32(std::to_string(i).c_str(), &i32));
-    }
-  }
-}
-
-TEST(mediametrics_tests, superbig_item_removal2) {
-  MediaAnalyticsItem item("TheOne");
-  constexpr size_t count = 10000;
-
-  for (size_t i = 0; i < count; ++i) {
-    item.setInt32(std::to_string(i).c_str(), i);
-  }
-  static const char *attrs[] = { "1", };
-  item.filterNot(1, attrs);
-
-  for (size_t i = 0; i < count; ++i) {
-    int32_t i32;
-    if (i == 1) { // check to see that there is only one
-        ASSERT_TRUE(item.getInt32(std::to_string(i).c_str(), &i32));
-        ASSERT_EQ((int32_t)i, i32);
-    } else {
-        ASSERT_FALSE(item.getInt32(std::to_string(i).c_str(), &i32));
-    }
-  }
-}
-
-TEST(mediametrics_tests, item_transmutation) {
-  MediaAnalyticsItem item("Alchemist's Stone");
-
-  item.setInt64("convert", 123);
-  int64_t i64;
-  ASSERT_TRUE(item.getInt64("convert", &i64));
-  ASSERT_EQ(123, i64);
-
-  item.addInt32("convert", 2);     // changes type of 'convert' from i64 to i32 (and re-init).
-  ASSERT_FALSE(item.getInt64("convert", &i64));  // should be false, no value in i64.
-
-  int32_t i32;
-  ASSERT_TRUE(item.getInt32("convert", &i32));   // check it is i32 and 2 (123 is discarded).
-  ASSERT_EQ(2, i32);
-}
-
-TEST(mediametrics_tests, item_binderization) {
-  MediaAnalyticsItem item;
-  item.setInt32("i32", 1)
-      .setInt64("i64", 2)
-      .setDouble("double", 3.1)
-      .setCString("string", "abc")
-      .setRate("rate", 11, 12);
-
-  Parcel p;
-  item.writeToParcel(&p);
-
-  p.setDataPosition(0); // rewind for reading
-  MediaAnalyticsItem item2;
-  item2.readFromParcel(p);
-
-  ASSERT_EQ(item, item2);
-}
-
-TEST(mediametrics_tests, item_byteserialization) {
-  MediaAnalyticsItem item;
-  item.setInt32("i32", 1)
-      .setInt64("i64", 2)
-      .setDouble("double", 3.1)
-      .setCString("string", "abc")
-      .setRate("rate", 11, 12);
-
-  char *data;
-  size_t length;
-  ASSERT_EQ(0, item.writeToByteString(&data, &length));
-  ASSERT_GT(length, (size_t)0);
-
-  MediaAnalyticsItem item2;
-  item2.readFromByteString(data, length);
-
-  printf("item: %s\n", item.toString().c_str());
-  printf("item2: %s\n", item2.toString().c_str());
-  ASSERT_EQ(item, item2);
-
-  free(data);
-}
-
-TEST(mediametrics_tests, item_iteration) {
-  MediaAnalyticsItem item;
-  item.setInt32("i32", 1)
-      .setInt64("i64", 2)
-      .setDouble("double", 3.125)
-      .setCString("string", "abc")
-      .setRate("rate", 11, 12);
-
-  int mask = 0;
-  for (auto &prop : item) {
-      const char *name = prop.getName();
-      if (!strcmp(name, "i32")) {
-          int32_t i32;
-          ASSERT_TRUE(prop.get(&i32));
-          ASSERT_EQ(1, i32);
-          mask |= 1;
-      } else if (!strcmp(name, "i64")) {
-          int64_t i64;
-          ASSERT_TRUE(prop.get(&i64));
-          ASSERT_EQ(2, i64);
-          mask |= 2;
-      } else if (!strcmp(name, "double")) {
-          double d;
-          ASSERT_TRUE(prop.get(&d));
-          ASSERT_EQ(3.125, d);
-          mask |= 4;
-      } else if (!strcmp(name, "string")) {
-          const char *s;
-          ASSERT_TRUE(prop.get(&s));
-          ASSERT_EQ(0, strcmp(s, "abc"));
-          mask |= 8;
-      } else if (!strcmp(name, "rate")) {
-          std::pair<int64_t, int64_t> r;
-          ASSERT_TRUE(prop.get(&r));
-          ASSERT_EQ(11, r.first);
-          ASSERT_EQ(12, r.second);
-          mask |= 16;
-      } else {
-          FAIL();
-      }
-  }
-  ASSERT_EQ(31, mask);
-}
diff --git a/services/mediacodec/Android.bp b/services/mediacodec/Android.bp
index 3141c31..5811068 100644
--- a/services/mediacodec/Android.bp
+++ b/services/mediacodec/Android.bp
@@ -15,10 +15,6 @@
     ],
 
     target: {
-        vendor: {
-            exclude_shared_libs: ["libavservices_minijail"],
-            shared_libs: ["libavservices_minijail_vendor"],
-        },
         android: {
             product_variables: {
                 malloc_not_svelte: {
diff --git a/services/mediacodec/Android.mk b/services/mediacodec/Android.mk
index 1cf0534..88a79e7 100644
--- a/services/mediacodec/Android.mk
+++ b/services/mediacodec/Android.mk
@@ -37,7 +37,7 @@
     libutils \
     liblog \
     libbase \
-    libavservices_minijail_vendor \
+    libavservices_minijail \
     libcutils \
     libhidlbase \
     libstagefright_omx \
diff --git a/services/mediaextractor/MediaExtractorService.cpp b/services/mediaextractor/MediaExtractorService.cpp
index 9e814d1..a6cd224 100644
--- a/services/mediaextractor/MediaExtractorService.cpp
+++ b/services/mediaextractor/MediaExtractorService.cpp
@@ -61,13 +61,11 @@
 }
 
 ::android::binder::Status MediaExtractorService::makeIDataSource(
-        const base::unique_fd &fd,
+        base::unique_fd fd,
         int64_t offset,
         int64_t length,
         ::android::sp<::android::IDataSource>* _aidl_return) {
-    // the caller will close the fd owned by the unique_fd upon return of this function,
-    // so we need to dup() it to retain it.
-    sp<DataSource> source = DataSourceFactory::getInstance()->CreateFromFd(dup(fd.get()), offset, length);
+    sp<DataSource> source = DataSourceFactory::getInstance()->CreateFromFd(fd.release(), offset, length);
     *_aidl_return = CreateIDataSourceFromDataSource(source);
     return binder::Status::ok();
 }
diff --git a/services/mediaextractor/MediaExtractorService.h b/services/mediaextractor/MediaExtractorService.h
index 1b61c4b..1b40bf9 100644
--- a/services/mediaextractor/MediaExtractorService.h
+++ b/services/mediaextractor/MediaExtractorService.h
@@ -37,7 +37,7 @@
             ::android::sp<::android::IMediaExtractor>* _aidl_return);
 
     virtual ::android::binder::Status makeIDataSource(
-            const base::unique_fd &fd,
+            base::unique_fd fd,
             int64_t offset,
             int64_t length,
             ::android::sp<::android::IDataSource>* _aidl_return);
diff --git a/services/mediaanalytics/Android.bp b/services/mediametrics/Android.bp
similarity index 88%
rename from services/mediaanalytics/Android.bp
rename to services/mediametrics/Android.bp
index dc72064..0840f31 100644
--- a/services/mediaanalytics/Android.bp
+++ b/services/mediametrics/Android.bp
@@ -11,7 +11,7 @@
     shared_libs: [
         "libbinder",
         "liblog",
-        "libmediaanalyticsservice",
+        "libmediametricsservice",
         "libutils",
     ],
 
@@ -27,11 +27,12 @@
 }
 
 cc_library_shared {
-    name: "libmediaanalyticsservice",
+    name: "libmediametricsservice",
 
     srcs: [
+        "AudioAnalytics.cpp",
         "iface_statsd.cpp",
-        "MediaAnalyticsService.cpp",
+        "MediaMetricsService.cpp",
         "statsd_audiopolicy.cpp",
         "statsd_audiorecord.cpp",
         "statsd_audiothread.cpp",
diff --git a/services/mediametrics/AudioAnalytics.cpp b/services/mediametrics/AudioAnalytics.cpp
new file mode 100644
index 0000000..fffe517
--- /dev/null
+++ b/services/mediametrics/AudioAnalytics.cpp
@@ -0,0 +1,73 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT 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 "AudioAnalytics"
+#include <utils/Log.h>
+
+#include "AudioAnalytics.h"
+
+#include <audio_utils/clock.h>                 // clock conversions
+
+namespace android::mediametrics {
+
+AudioAnalytics::AudioAnalytics()
+{
+    ALOGD("%s", __func__);
+}
+
+AudioAnalytics::~AudioAnalytics()
+{
+    ALOGD("%s", __func__);
+}
+
+status_t AudioAnalytics::submit(
+        const std::shared_ptr<const mediametrics::Item>& item, bool isTrusted)
+{
+    if (startsWith(item->getKey(), "audio.")) {
+        return mTimeMachine.put(item, isTrusted)
+                ?: mTransactionLog.put(item);
+    }
+    return BAD_VALUE;
+}
+
+std::pair<std::string, int32_t> AudioAnalytics::dump(int32_t lines) const
+{
+    std::stringstream ss;
+    int32_t ll = lines;
+
+    if (ll > 0) {
+        ss << "TransactionLog:\n";
+        --ll;
+    }
+    if (ll > 0) {
+        auto [s, l] = mTransactionLog.dump(ll);
+        ss << s;
+        ll -= l;
+    }
+    if (ll > 0) {
+        ss << "TimeMachine:\n";
+        --ll;
+    }
+    if (ll > 0) {
+        auto [s, l] = mTimeMachine.dump(ll);
+        ss << s;
+        ll -= l;
+    }
+    return { ss.str(), lines - ll };
+}
+
+} // namespace android
diff --git a/services/mediametrics/AudioAnalytics.h b/services/mediametrics/AudioAnalytics.h
new file mode 100644
index 0000000..b931258
--- /dev/null
+++ b/services/mediametrics/AudioAnalytics.h
@@ -0,0 +1,68 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include "TimeMachine.h"
+#include "TransactionLog.h"
+
+namespace android::mediametrics {
+
+class AudioAnalytics
+{
+public:
+    AudioAnalytics();
+    ~AudioAnalytics();
+
+    // TODO: update with conditions for keys.
+    /**
+     * Returns success if AudioAnalytics recognizes item.
+     *
+     * AudioAnalytics requires the item key to start with "audio.".
+     *
+     * A trusted source can create a new key, an untrusted source
+     * can only modify the key if the uid will match that authorized
+     * on the existing key.
+     *
+     * \param item the item to be submitted.
+     * \param isTrusted whether the transaction comes from a trusted source.
+     *        In this case, a trusted source is verified by binder
+     *        UID to be a system service by MediaMetrics service.
+     *        Do not use true if you haven't really checked!
+     */
+    status_t submit(const std::shared_ptr<const mediametrics::Item>& item, bool isTrusted);
+
+    /**
+     * Returns a pair consisting of the dump string, and the number of lines in the string.
+     *
+     * The number of lines in the returned pair is used as an optimization
+     * for subsequent line limiting.
+     *
+     * The TimeMachine and the TransactionLog are dumped separately under
+     * different locks, so may not be 100% consistent with the last data
+     * delivered.
+     *
+     * \param lines the maximum number of lines in the string returned.
+     */
+    std::pair<std::string, int32_t> dump(int32_t lines = INT32_MAX) const;
+
+private:
+    // The following are locked internally
+    TimeMachine mTimeMachine;
+    TransactionLog mTransactionLog;
+};
+
+} // namespace android::mediametrics
diff --git a/services/mediaanalytics/MediaAnalyticsService.cpp b/services/mediametrics/MediaMetricsService.cpp
similarity index 81%
rename from services/mediaanalytics/MediaAnalyticsService.cpp
rename to services/mediametrics/MediaMetricsService.cpp
index 1ed8b74..bbd13fa 100644
--- a/services/mediaanalytics/MediaAnalyticsService.cpp
+++ b/services/mediametrics/MediaMetricsService.cpp
@@ -15,21 +15,23 @@
  */
 
 //#define LOG_NDEBUG 0
-#define LOG_TAG "MediaAnalyticsService"
+#define LOG_TAG "MediaMetricsService"
 #include <utils/Log.h>
 
-#include "MediaAnalyticsService.h"
+#include "MediaMetricsService.h"
 
 #include <pwd.h> //getpwuid
 
-#include <audio_utils/clock.h>                 // clock conversions
 #include <android/content/pm/IPackageManagerNative.h>  // package info
+#include <audio_utils/clock.h>                 // clock conversions
 #include <binder/IPCThreadState.h>             // get calling uid
 #include <cutils/properties.h>                 // for property_get
 #include <private/android_filesystem_config.h> // UID
 
 namespace android {
 
+using namespace mediametrics;
+
 // individual records kept in memory: age or count
 // age: <= 28 hours (1 1/6 days)
 // count: hard limit of # records
@@ -49,16 +51,22 @@
 
 // TODO: need to look at tuning kMaxRecords and friends for low-memory devices
 
-MediaAnalyticsService::MediaAnalyticsService()
+/* static */
+nsecs_t MediaMetricsService::roundTime(nsecs_t timeNs)
+{
+    return (timeNs + NANOS_PER_SECOND / 2) / NANOS_PER_SECOND * NANOS_PER_SECOND;
+}
+
+MediaMetricsService::MediaMetricsService()
         : mMaxRecords(kMaxRecords),
           mMaxRecordAgeNs(kMaxRecordAgeNs),
           mMaxRecordsExpiredAtOnce(kMaxExpiredAtOnce),
-          mDumpProtoDefault(MediaAnalyticsItem::PROTO_V1)
+          mDumpProtoDefault(mediametrics::Item::PROTO_V1)
 {
     ALOGD("%s", __func__);
 }
 
-MediaAnalyticsService::~MediaAnalyticsService()
+MediaMetricsService::~MediaMetricsService()
 {
     ALOGD("%s", __func__);
     // the class destructor clears anyhow, but we enforce clearing items first.
@@ -66,40 +74,40 @@
     mItems.clear();
 }
 
-status_t MediaAnalyticsService::submitInternal(MediaAnalyticsItem *item, bool release)
+status_t MediaMetricsService::submitInternal(mediametrics::Item *item, bool release)
 {
-    // we control these, generally not trusting user input
-    nsecs_t now = systemTime(SYSTEM_TIME_REALTIME);
-    // round nsecs to seconds
-    now = (now + NANOS_PER_SECOND / 2) / NANOS_PER_SECOND * NANOS_PER_SECOND;
-    // TODO: if we convert to boot time, do we need to round timestamp?
-    item->setTimestamp(now);
+    // calling PID is 0 for one-way calls.
+    const pid_t pid = IPCThreadState::self()->getCallingPid();
+    const pid_t pid_given = item->getPid();
+    const uid_t uid = IPCThreadState::self()->getCallingUid();
+    const uid_t uid_given = item->getUid();
 
-    const int pid = IPCThreadState::self()->getCallingPid();
-    const int uid = IPCThreadState::self()->getCallingUid();
-    const int uid_given = item->getUid();
-    const int pid_given = item->getPid();
+    //ALOGD("%s: caller pid=%d uid=%d,  item pid=%d uid=%d", __func__,
+    //        (int)pid, (int)uid, (int) pid_given, (int)uid_given);
 
-    ALOGV("%s: caller has uid=%d, embedded uid=%d", __func__, uid, uid_given);
     bool isTrusted;
     switch (uid) {
+    case AID_AUDIOSERVER:
+    case AID_BLUETOOTH:
+    case AID_CAMERA:
     case AID_DRM:
     case AID_MEDIA:
     case AID_MEDIA_CODEC:
     case AID_MEDIA_EX:
     case AID_MEDIA_DRM:
+    case AID_SYSTEM:
         // trusted source, only override default values
         isTrusted = true;
-        if (uid_given == -1) {
+        if (uid_given == (uid_t)-1) {
             item->setUid(uid);
         }
-        if (pid_given == -1) {
-            item->setPid(pid);
+        if (pid_given == (pid_t)-1) {
+            item->setPid(pid); // if one-way then this is 0.
         }
         break;
     default:
         isTrusted = false;
-        item->setPid(pid);
+        item->setPid(pid); // always use calling pid, if one-way then this is 0.
         item->setUid(uid);
         break;
     }
@@ -138,22 +146,34 @@
         return BAD_VALUE;
     }
 
-    // send to statsd
-    extern bool dump2Statsd(MediaAnalyticsItem *item);  // extern hook
-    (void)dump2Statsd(item);  // failure should be logged in function.
+    if (!isTrusted || item->getTimestamp() == 0) {
+        // WestWorld logs two times for events: ElapsedRealTimeNs (BOOTTIME) and
+        // WallClockTimeNs (REALTIME).  The new audio keys use BOOTTIME.
+        //
+        // TODO: Reevaluate time base with other teams.
+        const bool useBootTime = startsWith(item->getKey(), "audio.");
+        const int64_t now = systemTime(useBootTime ? SYSTEM_TIME_BOOTTIME : SYSTEM_TIME_REALTIME);
+        item->setTimestamp(now);
+    }
 
-    if (!release) item = item->dup();
-    saveItem(item);
+    // now attach either the item or its dup to a const shared pointer
+    std::shared_ptr<const mediametrics::Item> sitem(release ? item : item->dup());
+
+    (void)mAudioAnalytics.submit(sitem, isTrusted);
+
+    extern bool dump2Statsd(const std::shared_ptr<const mediametrics::Item>& item);
+    (void)dump2Statsd(sitem);  // failure should be logged in function.
+    saveItem(sitem);
     return NO_ERROR;
 }
 
-status_t MediaAnalyticsService::dump(int fd, const Vector<String16>& args)
+status_t MediaMetricsService::dump(int fd, const Vector<String16>& args)
 {
     String8 result;
 
     if (checkCallingPermission(String16("android.permission.DUMP")) == false) {
         result.appendFormat("Permission Denial: "
-                "can't dump MediaAnalyticsService from pid=%d, uid=%d\n",
+                "can't dump MediaMetricsService from pid=%d, uid=%d\n",
                 IPCThreadState::self()->getCallingPid(),
                 IPCThreadState::self()->getCallingUid());
         write(fd, result.string(), result.size());
@@ -178,15 +198,15 @@
             i++;
             if (i < n) {
                 String8 value(args[i]);
-                int proto = MediaAnalyticsItem::PROTO_V0;
+                int proto = mediametrics::Item::PROTO_V0;
                 char *endp;
                 const char *p = value.string();
                 proto = strtol(p, &endp, 10);
                 if (endp != p || *endp == '\0') {
-                    if (proto < MediaAnalyticsItem::PROTO_FIRST) {
-                        proto = MediaAnalyticsItem::PROTO_FIRST;
-                    } else if (proto > MediaAnalyticsItem::PROTO_LAST) {
-                        proto = MediaAnalyticsItem::PROTO_LAST;
+                    if (proto < mediametrics::Item::PROTO_FIRST) {
+                        proto = mediametrics::Item::PROTO_FIRST;
+                    } else if (proto > mediametrics::Item::PROTO_LAST) {
+                        proto = mediametrics::Item::PROTO_LAST;
                     }
                     chosenProto = proto;
                 } else {
@@ -245,6 +265,9 @@
             mItems.clear();
             // shall we clear the summary data too?
         }
+        // TODO: maybe consider a better way of dumping audio analytics info.
+        constexpr int32_t linesToDump = 1000;
+        result.append(mAudioAnalytics.dump(linesToDump).first.c_str());
     }
 
     write(fd, result.string(), result.size());
@@ -252,10 +275,10 @@
 }
 
 // dump headers
-void MediaAnalyticsService::dumpHeaders_l(String8 &result, int dumpProto, nsecs_t ts_since)
+void MediaMetricsService::dumpHeaders_l(String8 &result, int dumpProto, nsecs_t ts_since)
 {
     result.appendFormat("Protocol Version: %d\n", dumpProto);
-    if (MediaAnalyticsItem::isEnabled()) {
+    if (mediametrics::Item::isEnabled()) {
         result.append("Metrics gathering: enabled\n");
     } else {
         result.append("Metrics gathering: DISABLED via property\n");
@@ -274,7 +297,7 @@
     }
 }
 
-void MediaAnalyticsService::dumpRecent_l(
+void MediaMetricsService::dumpRecent_l(
         String8 &result, int dumpProto, nsecs_t ts_since, const char * only)
 {
     if (only != nullptr && *only == '\0') {
@@ -288,11 +311,11 @@
     // talk about # records we discarded, perhaps "discarded w/o reading" too
 }
 
-void MediaAnalyticsService::dumpQueue_l(String8 &result, int dumpProto) {
+void MediaMetricsService::dumpQueue_l(String8 &result, int dumpProto) {
     dumpQueue_l(result, dumpProto, (nsecs_t) 0, nullptr /* only */);
 }
 
-void MediaAnalyticsService::dumpQueue_l(
+void MediaMetricsService::dumpQueue_l(
         String8 &result, int dumpProto, nsecs_t ts_since, const char * only) {
     int slot = 0;
 
@@ -323,7 +346,7 @@
 
 // if item != NULL, it's the item we just inserted
 // true == more items eligible to be recovered
-bool MediaAnalyticsService::expirations_l(MediaAnalyticsItem *item)
+bool MediaMetricsService::expirations_l(const std::shared_ptr<const mediametrics::Item>& item)
 {
     bool more = false;
 
@@ -346,7 +369,7 @@
         for (; i < mItems.size(); ++i) {
             auto &oitem = mItems[i];
             nsecs_t when = oitem->getTimestamp();
-            if (oitem.get() == item) {
+            if (oitem.get() == item.get()) {
                 break;
             }
             if (now > when && (now - when) <= mMaxRecordAgeNs) {
@@ -372,7 +395,7 @@
     return more;
 }
 
-void MediaAnalyticsService::processExpirations()
+void MediaMetricsService::processExpirations()
 {
     bool more;
     do {
@@ -382,7 +405,7 @@
     } while (more);
 }
 
-void MediaAnalyticsService::saveItem(MediaAnalyticsItem *item)
+void MediaMetricsService::saveItem(const std::shared_ptr<const mediametrics::Item>& item)
 {
     std::lock_guard _l(mLock);
     // we assume the items are roughly in time order.
@@ -396,16 +419,19 @@
 }
 
 /* static */
-bool MediaAnalyticsService::isContentValid(const MediaAnalyticsItem *item, bool isTrusted)
+bool MediaMetricsService::isContentValid(const mediametrics::Item *item, bool isTrusted)
 {
     if (isTrusted) return true;
     // untrusted uids can only send us a limited set of keys
     const std::string &key = item->getKey();
+    if (startsWith(key, "audio.")) return true;
     for (const char *allowedKey : {
+                                     // legacy audio
                                      "audiopolicy",
                                      "audiorecord",
                                      "audiothread",
                                      "audiotrack",
+                                     // other media
                                      "codec",
                                      "extractor",
                                      "nuplayer",
@@ -419,7 +445,7 @@
 }
 
 // are we rate limited, normally false
-bool MediaAnalyticsService::isRateLimited(MediaAnalyticsItem *) const
+bool MediaMetricsService::isRateLimited(mediametrics::Item *) const
 {
     return false;
 }
@@ -429,8 +455,8 @@
 
 // give me the package name, perhaps going to find it
 // manages its own mutex operations internally
-void MediaAnalyticsService::UidInfo::setPkgInfo(
-        MediaAnalyticsItem *item, uid_t uid, bool setName, bool setVersion)
+void MediaMetricsService::UidInfo::setPkgInfo(
+        mediametrics::Item *item, uid_t uid, bool setName, bool setVersion)
 {
     ALOGV("%s: uid=%d", __func__, uid);
 
@@ -489,9 +515,10 @@
             if (!status.isOk()) {
                 ALOGE("%s: getNamesForUids failed: %s",
                         __func__, status.exceptionMessage().c_str());
-            }
-            if (!names[0].empty()) {
-                pkg = names[0].c_str();
+            } else {
+                if (!names[0].empty()) {
+                    pkg = names[0].c_str();
+                }
             }
         }
 
diff --git a/services/mediaanalytics/MediaAnalyticsService.h b/services/mediametrics/MediaMetricsService.h
similarity index 75%
rename from services/mediaanalytics/MediaAnalyticsService.h
rename to services/mediametrics/MediaMetricsService.h
index eb7d725..b736c30 100644
--- a/services/mediaanalytics/MediaAnalyticsService.h
+++ b/services/mediametrics/MediaMetricsService.h
@@ -22,17 +22,19 @@
 #include <mutex>
 #include <unordered_map>
 
-// IMediaAnalyticsService must include Vector, String16, Errors
-#include <media/IMediaAnalyticsService.h>
+// IMediaMetricsService must include Vector, String16, Errors
+#include <media/IMediaMetricsService.h>
 #include <utils/String8.h>
 
+#include "AudioAnalytics.h"
+
 namespace android {
 
-class MediaAnalyticsService : public BnMediaAnalyticsService
+class MediaMetricsService : public BnMediaMetricsService
 {
 public:
-    MediaAnalyticsService();
-    ~MediaAnalyticsService() override;
+    MediaMetricsService();
+    ~MediaMetricsService() override;
 
     /**
      * Submits the indicated record to the mediaanalytics service.
@@ -41,29 +43,40 @@
      * \return status failure, which is negative on binder transaction failure.
      *         As the transaction is one-way, remote failures will not be reported.
      */
-    status_t submit(MediaAnalyticsItem *item) override {
+    status_t submit(mediametrics::Item *item) override {
         return submitInternal(item, false /* release */);
     }
 
+    status_t submitBuffer(const char *buffer, size_t length) override {
+        mediametrics::Item *item = new mediametrics::Item();
+        return item->readFromByteString(buffer, length)
+                ?: submitInternal(item, true /* release */);
+    }
+
     status_t dump(int fd, const Vector<String16>& args) override;
 
     static constexpr const char * const kServiceName = "media.metrics";
 
+    /**
+     * Rounds time to the nearest second.
+     */
+    static nsecs_t roundTime(nsecs_t timeNs);
+
 protected:
 
     // Internal call where release is true if ownership of item is transferred
     // to the service (that is, the service will eventually delete the item).
-    status_t submitInternal(MediaAnalyticsItem *item, bool release) override;
+    status_t submitInternal(mediametrics::Item *item, bool release) override;
 
 private:
     void processExpirations();
     // input validation after arrival from client
-    static bool isContentValid(const MediaAnalyticsItem *item, bool isTrusted);
-    bool isRateLimited(MediaAnalyticsItem *) const;
-    void saveItem(MediaAnalyticsItem *);
+    static bool isContentValid(const mediametrics::Item *item, bool isTrusted);
+    bool isRateLimited(mediametrics::Item *) const;
+    void saveItem(const std::shared_ptr<const mediametrics::Item>& item);
 
     // The following methods are GUARDED_BY(mLock)
-    bool expirations_l(MediaAnalyticsItem *);
+    bool expirations_l(const std::shared_ptr<const mediametrics::Item>& item);
 
     // support for generating output
     void dumpQueue_l(String8 &result, int dumpProto);
@@ -85,7 +98,7 @@
 
     class UidInfo {
     public:
-        void setPkgInfo(MediaAnalyticsItem *item, uid_t uid, bool setName, bool setVersion);
+        void setPkgInfo(mediametrics::Item *item, uid_t uid, bool setName, bool setVersion);
 
     private:
         std::mutex mUidInfoLock;
@@ -104,6 +117,8 @@
 
     std::atomic<int64_t> mItemsSubmitted{}; // accessed outside of lock.
 
+    mediametrics::AudioAnalytics mAudioAnalytics;
+
     std::mutex mLock;
     // statistics about our analytics
     int64_t mItemsFinalized = 0;        // GUARDED_BY(mLock)
@@ -117,7 +132,7 @@
     // Our item queue, generally (oldest at front)
     // TODO: Make separate class, use segmented queue, write lock only end.
     // Note: Another analytics module might have ownership of an item longer than the log.
-    std::deque<std::shared_ptr<const MediaAnalyticsItem>> mItems; // GUARDED_BY(mLock)
+    std::deque<std::shared_ptr<const mediametrics::Item>> mItems; // GUARDED_BY(mLock)
 };
 
 } // namespace android
diff --git a/services/mediaanalytics/OWNERS b/services/mediametrics/OWNERS
similarity index 100%
rename from services/mediaanalytics/OWNERS
rename to services/mediametrics/OWNERS
diff --git a/services/mediaanalytics/TEST_MAPPING b/services/mediametrics/TEST_MAPPING
similarity index 100%
rename from services/mediaanalytics/TEST_MAPPING
rename to services/mediametrics/TEST_MAPPING
diff --git a/services/mediametrics/TimeMachine.h b/services/mediametrics/TimeMachine.h
new file mode 100644
index 0000000..b3932de
--- /dev/null
+++ b/services/mediametrics/TimeMachine.h
@@ -0,0 +1,484 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <any>
+#include <map>
+#include <sstream>
+#include <string>
+#include <variant>
+#include <vector>
+
+#include <media/MediaMetricsItem.h>
+#include <utils/Timers.h>
+
+namespace android::mediametrics {
+
+// define a way of printing the monostate
+inline std::ostream & operator<< (std::ostream& s,
+                           std::monostate const& v __unused) {
+    s << "none_item";
+    return s;
+}
+
+// define a way of printing a variant
+// see https://en.cppreference.com/w/cpp/utility/variant/visit
+template <typename T0, typename ... Ts>
+std::ostream & operator<< (std::ostream& s,
+                           std::variant<T0, Ts...> const& v) {
+    std::visit([&s](auto && arg){ s << std::forward<decltype(arg)>(arg); }, v);
+    return s;
+}
+
+/**
+ * The TimeMachine is used to record timing changes of MediaAnalyticItem
+ * properties.
+ *
+ * Any URL that ends with '!' will have a time sequence that keeps duplicates.
+ *
+ * The TimeMachine is NOT thread safe.
+ */
+class TimeMachine {
+
+    using Elem = std::variant<std::monostate, int32_t, int64_t, double, std::string>;
+    using PropertyHistory = std::multimap<int64_t /* time */, Elem>;
+
+    // KeyHistory contains no lock.
+    // Access is through the TimeMachine, and a hash-striped lock is used
+    // before calling into KeyHistory.
+    class KeyHistory  {
+    public:
+        template <typename T>
+        KeyHistory(T key, pid_t pid, uid_t uid, int64_t time)
+            : mKey(key)
+            , mPid(pid)
+            , mUid(uid)
+            , mCreationTime(time)
+            , mLastModificationTime(time)
+        {
+            putValue(BUNDLE_PID, (int32_t)pid, time);
+            putValue(BUNDLE_UID, (int32_t)uid, time);
+        }
+
+        status_t checkPermission(uid_t uidCheck) const {
+            return uidCheck != (uid_t)-1 && uidCheck != mUid ? PERMISSION_DENIED : NO_ERROR;
+        }
+
+        template <typename T>
+        status_t getValue(const std::string &property, T* value, int64_t time = 0) const {
+            if (time == 0) time = systemTime(SYSTEM_TIME_BOOTTIME);
+            const auto tsptr = mPropertyMap.find(property);
+            if (tsptr == mPropertyMap.end()) return BAD_VALUE;
+            const auto& timeSequence = tsptr->second;
+            auto eptr = timeSequence.upper_bound(time);
+            if (eptr == timeSequence.begin()) return BAD_VALUE;
+            --eptr;
+            if (eptr == timeSequence.end()) return BAD_VALUE;
+            const T* vptr = std::get_if<T>(&eptr->second);
+            if (vptr == nullptr) return BAD_VALUE;
+            *value = *vptr;
+            return NO_ERROR;
+        }
+
+        template <typename T>
+        status_t getValue(const std::string &property, T defaultValue, int64_t time = 0) const {
+            T value;
+            return getValue(property, &value, time) != NO_ERROR ? defaultValue : value;
+        }
+
+        void putProp(
+                const std::string &name, const mediametrics::Item::Prop &prop, int64_t time = 0) {
+            prop.visit([&](auto value) { putValue(name, value, time); });
+        }
+
+        template <typename T>
+        void putValue(const std::string &property,
+                T&& e, int64_t time = 0) {
+            if (time == 0) time = systemTime(SYSTEM_TIME_BOOTTIME);
+            mLastModificationTime = time;
+            auto& timeSequence = mPropertyMap[property];
+            Elem el{std::forward<T>(e)};
+            if (timeSequence.empty()           // no elements
+                    || property.back() == '!'  // keep duplicates TODO: remove?
+                    || timeSequence.rbegin()->second != el) { // value changed
+                timeSequence.emplace(time, std::move(el));
+            }
+        }
+
+        // Explicitly ignore rate properties - we don't expose them for now.
+        void putValue(
+                      const std::string &property __unused,
+                      std::pair<int64_t, int64_t>& e __unused,
+                      int64_t time __unused) {
+        }
+
+        std::pair<std::string, int32_t> dump(int32_t lines, int64_t time) const {
+            std::stringstream ss;
+            int32_t ll = lines;
+            for (auto& tsPair : mPropertyMap) {
+                if (ll <= 0) break;
+                ss << dump(mKey, tsPair, time);
+                --ll;
+            }
+            return { ss.str(), lines - ll };
+        }
+
+        int64_t getLastModificationTime() const { return mLastModificationTime; }
+
+    private:
+        static std::string dump(
+                const std::string &key,
+                const std::pair<std::string /* prop */, PropertyHistory>& tsPair,
+                int64_t time) {
+            const auto timeSequence = tsPair.second;
+            auto eptr = timeSequence.lower_bound(time);
+            if (eptr == timeSequence.end()) {
+                return tsPair.first + "={};\n";
+            }
+            std::stringstream ss;
+            ss << key << "." << tsPair.first << "={";
+            do {
+                ss << eptr->first << ":" << eptr->second << ",";
+            } while (++eptr != timeSequence.end());
+            ss << "};\n";
+            return ss.str();
+        }
+
+        const std::string mKey;
+        const pid_t mPid __unused;
+        const uid_t mUid;
+        const int64_t mCreationTime __unused;
+
+        int64_t mLastModificationTime;
+        std::map<std::string /* property */, PropertyHistory> mPropertyMap;
+    };
+
+    using History = std::map<std::string /* key */, std::shared_ptr<KeyHistory>>;
+
+    static inline constexpr size_t kKeyLowWaterMark = 500;
+    static inline constexpr size_t kKeyHighWaterMark = 1000;
+
+    // Estimated max data space usage is 3KB * kKeyHighWaterMark.
+
+public:
+
+    TimeMachine() = default;
+    TimeMachine(size_t keyLowWaterMark, size_t keyHighWaterMark)
+        : mKeyLowWaterMark(keyLowWaterMark)
+        , mKeyHighWaterMark(keyHighWaterMark) {
+        LOG_ALWAYS_FATAL_IF(keyHighWaterMark <= keyLowWaterMark,
+              "%s: required that keyHighWaterMark:%zu > keyLowWaterMark:%zu",
+                  __func__, keyHighWaterMark, keyLowWaterMark);
+    }
+
+    /**
+     * Put all the properties from an item into the Time Machine log.
+     */
+    status_t put(const std::shared_ptr<const mediametrics::Item>& item, bool isTrusted = false) {
+        const int64_t time = item->getTimestamp();
+        const std::string &key = item->getKey();
+
+        std::shared_ptr<KeyHistory> keyHistory;
+        {
+            std::vector<std::any> garbage;
+            std::lock_guard lock(mLock);
+
+            auto it = mHistory.find(key);
+            if (it == mHistory.end()) {
+                if (!isTrusted) return PERMISSION_DENIED;
+
+                (void)gc_l(garbage);
+
+                // no keylock needed here as we are sole owner
+                // until placed on mHistory.
+                keyHistory = std::make_shared<KeyHistory>(
+                    key, item->getPid(), item->getUid(), time);
+                mHistory[key] = keyHistory;
+            } else {
+                keyHistory = it->second;
+            }
+        }
+
+        // deferred contains remote properties (for other keys) to do later.
+        std::vector<const mediametrics::Item::Prop *> deferred;
+        {
+            // handle local properties
+            std::lock_guard lock(getLockForKey(key));
+            if (!isTrusted) {
+                status_t status = keyHistory->checkPermission(item->getUid());
+                if (status != NO_ERROR) return status;
+            }
+
+            for (const auto &prop : *item) {
+                const std::string &name = prop.getName();
+                if (name.size() == 0 || name[0] == '_') continue;
+
+                // Cross key settings are with [key]property
+                if (name[0] == '[') {
+                    if (!isTrusted) continue;
+                    deferred.push_back(&prop);
+                } else {
+                    keyHistory->putProp(name, prop, time);
+                }
+            }
+        }
+
+        // handle remote properties, if any
+        for (const auto propptr : deferred) {
+            const auto &prop = *propptr;
+            const std::string &name = prop.getName();
+            size_t end = name.find_first_of(']'); // TODO: handle nested [] or escape?
+            if (end == 0) continue;
+            std::string remoteKey = name.substr(1, end - 1);
+            std::string remoteName = name.substr(end + 1);
+            if (remoteKey.size() == 0 || remoteName.size() == 0) continue;
+            std::shared_ptr<KeyHistory> remoteKeyHistory;
+            {
+                std::lock_guard lock(mLock);
+                auto it = mHistory.find(remoteKey);
+                if (it == mHistory.end()) continue;
+                remoteKeyHistory = it->second;
+            }
+            std::lock_guard(getLockForKey(remoteKey));
+            remoteKeyHistory->putProp(remoteName, prop, time);
+        }
+        return NO_ERROR;
+    }
+
+    template <typename T>
+    status_t get(const std::string &key, const std::string &property,
+            T* value, int32_t uidCheck = -1, int64_t time = 0) const {
+        std::shared_ptr<KeyHistory> keyHistory;
+        {
+            std::lock_guard lock(mLock);
+            const auto it = mHistory.find(key);
+            if (it == mHistory.end()) return BAD_VALUE;
+            keyHistory = it->second;
+        }
+        std::lock_guard lock(getLockForKey(key));
+        return keyHistory->checkPermission(uidCheck)
+                ?: keyHistory->getValue(property, value, time);
+    }
+
+    /**
+     * Individual property put.
+     *
+     * Put takes in a time (if none is provided then BOOTTIME is used).
+     */
+    template <typename T>
+    status_t put(const std::string &url, T &&e, int64_t time = 0) {
+        std::string key;
+        std::string prop;
+        std::shared_ptr<KeyHistory> keyHistory =
+            getKeyHistoryFromUrl(url, &key, &prop);
+        if (keyHistory == nullptr) return BAD_VALUE;
+        if (time == 0) time = systemTime(SYSTEM_TIME_BOOTTIME);
+        std::lock_guard lock(getLockForKey(key));
+        keyHistory->putValue(prop, std::forward<T>(e), time);
+        return NO_ERROR;
+    }
+
+    /**
+     * Individual property get
+     */
+    template <typename T>
+    status_t get(const std::string &url, T* value, int32_t uidCheck, int64_t time = 0) const {
+        std::string key;
+        std::string prop;
+        std::shared_ptr<KeyHistory> keyHistory =
+            getKeyHistoryFromUrl(url, &key, &prop);
+        if (keyHistory == nullptr) return BAD_VALUE;
+
+        std::lock_guard lock(getLockForKey(key));
+        return keyHistory->checkPermission(uidCheck)
+               ?: keyHistory->getValue(prop, value, time);
+    }
+
+    /**
+     * Individual property get with default
+     */
+    template <typename T>
+    T get(const std::string &url, const T &defaultValue, int32_t uidCheck,
+            int64_t time = 0) const {
+        T value;
+        return get(url, &value, uidCheck, time) == NO_ERROR
+                ? value : defaultValue;
+    }
+
+    /**
+     *  Returns number of keys in the Time Machine.
+     */
+    size_t size() const {
+        std::lock_guard lock(mLock);
+        return mHistory.size();
+    }
+
+    /**
+     * Clears all properties from the Time Machine.
+     */
+    void clear() {
+        std::lock_guard lock(mLock);
+        mHistory.clear();
+    }
+
+    /**
+     * Returns a pair consisting of the TimeMachine state as a string
+     * and the number of lines in the string.
+     *
+     * The number of lines in the returned pair is used as an optimization
+     * for subsequent line limiting.
+     *
+     * \param lines the maximum number of lines in the string returned.
+     * \param key selects only that key.
+     * \param time to start the dump from.
+     */
+    std::pair<std::string, int32_t> dump(
+            int32_t lines = INT32_MAX, const std::string &key = {}, int64_t time = 0) const {
+        std::lock_guard lock(mLock);
+        if (!key.empty()) {  // use std::regex
+            const auto it = mHistory.find(key);
+            if (it == mHistory.end()) return {};
+            std::lock_guard lock(getLockForKey(it->first));
+            return it->second->dump(lines, time);
+        }
+
+        std::stringstream ss;
+        int32_t ll = lines;
+        for (const auto &keyPair : mHistory) {
+            std::lock_guard lock(getLockForKey(keyPair.first));
+            if (lines <= 0) break;
+            auto [s, l] = keyPair.second->dump(ll, time);
+            ss << s;
+            ll -= l;
+        }
+        return { ss.str(), lines - ll };
+    }
+
+private:
+
+    // Obtains the lock for a KeyHistory.
+    std::mutex &getLockForKey(const std::string &key) const {
+        return mKeyLocks[std::hash<std::string>{}(key) % std::size(mKeyLocks)];
+    }
+
+    // Finds a KeyHistory from a URL.  Returns nullptr if not found.
+    std::shared_ptr<KeyHistory> getKeyHistoryFromUrl(
+            std::string url, std::string* key, std::string *prop) const {
+        std::lock_guard lock(mLock);
+
+        auto it = mHistory.upper_bound(url);
+        if (it == mHistory.begin()) {
+           return nullptr;
+        }
+        --it;  // go to the actual key, if it exists.
+
+        const std::string& itKey = it->first;
+        if (strncmp(itKey.c_str(), url.c_str(), itKey.size())) {
+            return nullptr;
+        }
+        if (key) *key = itKey;
+        if (prop) *prop = url.substr(itKey.size() + 1);
+        return it->second;
+    }
+
+    // GUARDED_BY mLock
+    /**
+     * Garbage collects if the TimeMachine size exceeds the high water mark.
+     *
+     * \param garbage a type-erased vector of elements to be destroyed
+     *        outside of lock.  Move large items to be destroyed here.
+     *
+     * \return true if garbage collection was done.
+     */
+    bool gc_l(std::vector<std::any>& garbage) {
+        // TODO: something better than this for garbage collection.
+        if (mHistory.size() < mKeyHighWaterMark) return false;
+
+        ALOGD("%s: garbage collection", __func__);
+
+        // erase everything explicitly expired.
+        std::multimap<int64_t, std::string> accessList;
+        // use a stale vector with precise type to avoid type erasure overhead in garbage
+        std::vector<std::shared_ptr<KeyHistory>> stale;
+
+        for (auto it = mHistory.begin(); it != mHistory.end();) {
+            const std::string& key = it->first;
+            std::shared_ptr<KeyHistory> &keyHist = it->second;
+
+            std::lock_guard lock(getLockForKey(it->first));
+            int64_t expireTime = keyHist->getValue("_expire", -1 /* default */);
+            if (expireTime != -1) {
+                stale.emplace_back(std::move(it->second));
+                it = mHistory.erase(it);
+            } else {
+                accessList.emplace(keyHist->getLastModificationTime(), key);
+                ++it;
+            }
+        }
+
+        if (mHistory.size() > mKeyLowWaterMark) {
+           const size_t toDelete = mHistory.size() - mKeyLowWaterMark;
+           auto it = accessList.begin();
+           for (size_t i = 0; i < toDelete; ++i) {
+               auto it2 = mHistory.find(it->second);
+               stale.emplace_back(std::move(it2->second));
+               mHistory.erase(it2);
+               ++it;
+           }
+        }
+        garbage.emplace_back(std::move(accessList));
+        garbage.emplace_back(std::move(stale));
+
+        ALOGD("%s(%zu, %zu): key size:%zu",
+                __func__, mKeyLowWaterMark, mKeyHighWaterMark,
+                mHistory.size());
+        return true;
+    }
+
+    const size_t mKeyLowWaterMark = kKeyLowWaterMark;
+    const size_t mKeyHighWaterMark = kKeyHighWaterMark;
+
+    /**
+     * Locking Strategy
+     *
+     * Each key in the History has a KeyHistory. To get a shared pointer to
+     * the KeyHistory requires a lookup of mHistory under mLock.  Once the shared
+     * pointer to KeyHistory is obtained, the mLock for mHistory can be released.
+     *
+     * Once the shared pointer to the key's KeyHistory is obtained, the KeyHistory
+     * can be locked for read and modification through the method getLockForKey().
+     *
+     * Instead of having a mutex per KeyHistory, we use a hash striped lock
+     * which assigns a mutex based on the hash of the key string.
+     *
+     * Once the last shared pointer reference to KeyHistory is released, it is
+     * destroyed.  This is done through the garbage collection method.
+     *
+     * This two level locking allows multiple threads to access the TimeMachine
+     * in parallel.
+     */
+
+    mutable std::mutex mLock;           // Lock for mHistory
+    History mHistory;                   // GUARDED_BY mLock
+
+    // KEY_LOCKS is the number of mutexes for keys.
+    // It need not be a power of 2, but faster that way.
+    static inline constexpr size_t KEY_LOCKS = 256;
+    mutable std::mutex mKeyLocks[KEY_LOCKS];  // Hash-striped lock for KeyHistory based on key.
+};
+
+} // namespace android::mediametrics
diff --git a/services/mediametrics/TransactionLog.h b/services/mediametrics/TransactionLog.h
new file mode 100644
index 0000000..7a520d9
--- /dev/null
+++ b/services/mediametrics/TransactionLog.h
@@ -0,0 +1,255 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include <any>
+#include <map>
+#include <sstream>
+#include <string>
+
+#include <media/MediaMetricsItem.h>
+
+namespace android::mediametrics {
+
+/**
+ * The TransactionLog is used to record mediametrics::Items to present
+ * different views on the time information (selected by audio, and sorted by key).
+ *
+ * The TransactionLog will always present data in timestamp order. (Perhaps we
+ * just make this submit order).
+ *
+ * These Views have a cost in shared pointer storage, so they aren't quite free.
+ *
+ * The TransactionLog is NOT thread safe.
+ */
+class TransactionLog {
+public:
+    // In long term run, the garbage collector aims to keep the
+    // Transaction Log between the Low Water Mark and the High Water Mark.
+
+    // low water mark
+    static inline constexpr size_t kLogItemsLowWater = 5000;
+    // high water mark
+    static inline constexpr size_t kLogItemsHighWater = 10000;
+
+    // Estimated max data usage is 1KB * kLogItemsHighWater.
+
+    TransactionLog() = default;
+
+    TransactionLog(size_t lowWaterMark, size_t highWaterMark)
+        : mLowWaterMark(lowWaterMark)
+        , mHighWaterMark(highWaterMark) {
+        LOG_ALWAYS_FATAL_IF(highWaterMark <= lowWaterMark,
+              "%s: required that highWaterMark:%zu > lowWaterMark:%zu",
+                  __func__, highWaterMark, lowWaterMark);
+    }
+
+    /**
+     * Put an item in the TransactionLog.
+     */
+    status_t put(const std::shared_ptr<const mediametrics::Item>& item) {
+        const std::string& key = item->getKey();
+        const int64_t time = item->getTimestamp();
+
+        std::vector<std::any> garbage;  // objects destroyed after lock.
+        std::lock_guard lock(mLock);
+
+        (void)gc_l(garbage);
+        mLog.emplace(time, item);
+        mItemMap[key].emplace(time, item);
+        return NO_ERROR;  // no errors for now.
+    }
+
+    /**
+     * Returns all records within [startTime, endTime]
+     */
+    std::vector<std::shared_ptr<const mediametrics::Item>> get(
+            int64_t startTime = 0, int64_t endTime = INT64_MAX) const {
+        std::lock_guard lock(mLock);
+        return getItemsInRange_l(mLog, startTime, endTime);
+    }
+
+    /**
+     * Returns all records for a key within [startTime, endTime]
+     */
+    std::vector<std::shared_ptr<const mediametrics::Item>> get(
+            const std::string& key,
+            int64_t startTime = 0, int64_t endTime = INT64_MAX) const {
+        std::lock_guard lock(mLock);
+        auto mapIt = mItemMap.find(key);
+        if (mapIt == mItemMap.end()) return {};
+        return getItemsInRange_l(mapIt->second, startTime, endTime);
+    }
+
+    /**
+     * Returns a pair consisting of the Transaction Log as a string
+     * and the number of lines in the string.
+     *
+     * The number of lines in the returned pair is used as an optimization
+     * for subsequent line limiting.
+     *
+     * \param lines the maximum number of lines in the string returned.
+     */
+    std::pair<std::string, int32_t> dump(int32_t lines) const {
+        std::stringstream ss;
+        int32_t ll = lines;
+        std::lock_guard lock(mLock);
+
+        // All audio items in time order.
+        if (ll > 0) {
+            ss << "Consolidated:\n";
+            --ll;
+        }
+        for (const auto &log : mLog) {
+            if (ll <= 0) break;
+            ss << "  " << log.second->toString() << "\n";
+            --ll;
+        }
+
+        // Grouped by item key (category)
+        if (ll > 0) {
+            ss << "Categorized:\n";
+            --ll;
+        }
+        for (const auto &itemMap : mItemMap) {
+            if (ll <= 0) break;
+            ss << " " << itemMap.first << "\n";
+            --ll;
+            for (const auto &item : itemMap.second) {
+                if (ll <= 0) break;
+                ss << "  { " << item.first << ", " << item.second->toString() << " }\n";
+                --ll;
+            }
+        }
+        return { ss.str(), lines - ll };
+    }
+
+    /**
+     *  Returns number of Items in the TransactionLog.
+     */
+    size_t size() const {
+        std::lock_guard lock(mLock);
+        return mLog.size();
+    }
+
+    /**
+     * Clears all Items from the TransactionLog.
+     */
+    // TODO: Garbage Collector, sweep and expire old values
+    void clear() {
+        std::lock_guard lock(mLock);
+        mLog.clear();
+        mItemMap.clear();
+    }
+
+private:
+    using MapTimeItem =
+            std::multimap<int64_t /* time */, std::shared_ptr<const mediametrics::Item>>;
+
+    // GUARDED_BY mLock
+    /**
+     * Garbage collects if the TimeMachine size exceeds the high water mark.
+     *
+     * \param garbage a type-erased vector of elements to be destroyed
+     *        outside of lock.  Move large items to be destroyed here.
+     *
+     * \return true if garbage collection was done.
+     */
+    bool gc_l(std::vector<std::any>& garbage) {
+        if (mLog.size() < mHighWaterMark) return false;
+
+        ALOGD("%s: garbage collection", __func__);
+
+        auto eraseEnd = mLog.begin();
+        size_t toRemove = mLog.size() - mLowWaterMark;
+        // remove at least those elements.
+
+        // use a stale vector with precise type to avoid type erasure overhead in garbage
+        std::vector<std::shared_ptr<const mediametrics::Item>> stale;
+
+        for (size_t i = 0; i < toRemove; ++i) {
+            stale.emplace_back(std::move(eraseEnd->second));
+            ++eraseEnd; // amortized O(1)
+        }
+        // ensure that eraseEnd is an lower bound on timeToErase.
+        const int64_t timeToErase = eraseEnd->first;
+        while (eraseEnd != mLog.end()) {
+            auto it = eraseEnd;
+            --it;  // amortized O(1)
+            if (it->first != timeToErase) {
+                break;  // eraseEnd represents a unique time jump.
+            }
+            stale.emplace_back(std::move(eraseEnd->second));
+            ++eraseEnd;
+        }
+
+        mLog.erase(mLog.begin(), eraseEnd);  // O(ptr_diff)
+
+        size_t itemMapCount = 0;
+        for (auto it = mItemMap.begin(); it != mItemMap.end();) {
+            auto &keyHist = it->second;
+            auto it2 = keyHist.lower_bound(timeToErase);
+            if (it2 == keyHist.end()) {
+                garbage.emplace_back(std::move(keyHist)); // directly move keyhist to garbage
+                it = mItemMap.erase(it);
+            } else {
+                for (auto it3 = keyHist.begin(); it3 != it2; ++it3) {
+                    stale.emplace_back(std::move(it3->second));
+                }
+                keyHist.erase(keyHist.begin(), it2);
+                itemMapCount += keyHist.size();
+                 ++it;
+            }
+        }
+
+        garbage.emplace_back(std::move(stale));
+
+        ALOGD("%s(%zu, %zu): log size:%zu item map size:%zu, item map items:%zu",
+                __func__, mLowWaterMark, mHighWaterMark,
+                mLog.size(), mItemMap.size(), itemMapCount);
+        return true;
+    }
+
+    static std::vector<std::shared_ptr<const mediametrics::Item>> getItemsInRange_l(
+            const MapTimeItem& map,
+            int64_t startTime = 0, int64_t endTime = INT64_MAX) {
+        auto it = map.lower_bound(startTime);
+        if (it == map.end()) return {};
+
+        auto it2 = map.upper_bound(endTime);
+
+        std::vector<std::shared_ptr<const mediametrics::Item>> ret;
+        while (it != it2) {
+            ret.push_back(it->second);
+            ++it;
+        }
+        return ret;
+    }
+
+    const size_t mLowWaterMark = kLogItemsHighWater;
+    const size_t mHighWaterMark = kLogItemsHighWater;
+
+    mutable std::mutex mLock;
+
+    // GUARDED_BY mLock
+    MapTimeItem mLog;
+
+    // GUARDED_BY mLock
+    std::map<std::string /* item_key */, MapTimeItem> mItemMap;
+};
+
+} // namespace android::mediametrics
diff --git a/services/mediaanalytics/iface_statsd.cpp b/services/mediametrics/iface_statsd.cpp
similarity index 86%
rename from services/mediaanalytics/iface_statsd.cpp
rename to services/mediametrics/iface_statsd.cpp
index e02c9cf..3a1eea7 100644
--- a/services/mediaanalytics/iface_statsd.cpp
+++ b/services/mediametrics/iface_statsd.cpp
@@ -27,20 +27,21 @@
 #include <pthread.h>
 #include <unistd.h>
 
+#include <memory>
 #include <string.h>
 #include <pwd.h>
 
-#include "MediaAnalyticsService.h"
+#include "MediaMetricsService.h"
 #include "iface_statsd.h"
 
 #include <statslog.h>
 
 namespace android {
 
-// set of routines that crack a MediaAnalyticsItem
+// set of routines that crack a mediametrics::Item
 // and send it off to statsd with the appropriate hooks
 //
-// each MediaAnalyticsItem type (extractor, codec, nuplayer, etc)
+// each mediametrics::Item type (extractor, codec, nuplayer, etc)
 // has its own routine to handle this.
 //
 
@@ -48,7 +49,7 @@
 
 struct statsd_hooks {
     const char *key;
-    bool (*handler)(MediaAnalyticsItem *);
+    bool (*handler)(const mediametrics::Item *);
 };
 
 // keep this sorted, so we can do binary searches
@@ -69,7 +70,7 @@
 };
 
 // give me a record, i'll look at the type and upload appropriately
-bool dump2Statsd(MediaAnalyticsItem *item) {
+bool dump2Statsd(const std::shared_ptr<const mediametrics::Item>& item) {
     if (item == NULL) return false;
 
     // get the key
@@ -82,7 +83,7 @@
 
     for (const auto &statsd_handler : statsd_handlers) {
         if (key == statsd_handler.key) {
-            return statsd_handler.handler(item);
+            return statsd_handler.handler(item.get());
         }
     }
     return false;
diff --git a/services/mediametrics/iface_statsd.h b/services/mediametrics/iface_statsd.h
new file mode 100644
index 0000000..19505a4
--- /dev/null
+++ b/services/mediametrics/iface_statsd.h
@@ -0,0 +1,35 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT 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 {
+
+extern bool enabled_statsd;
+
+// component specific dumpers
+extern bool statsd_audiopolicy(const mediametrics::Item *);
+extern bool statsd_audiorecord(const mediametrics::Item *);
+extern bool statsd_audiothread(const mediametrics::Item *);
+extern bool statsd_audiotrack(const mediametrics::Item *);
+extern bool statsd_codec(const mediametrics::Item *);
+extern bool statsd_extractor(const mediametrics::Item *);
+extern bool statsd_nuplayer(const mediametrics::Item *);
+extern bool statsd_recorder(const mediametrics::Item *);
+
+extern bool statsd_mediadrm(const mediametrics::Item *);
+extern bool statsd_widevineCDM(const mediametrics::Item *);
+extern bool statsd_drmmanager(const mediametrics::Item *);
+
+} // namespace android
diff --git a/services/mediaanalytics/main_mediametrics.cpp b/services/mediametrics/main_mediametrics.cpp
similarity index 88%
rename from services/mediaanalytics/main_mediametrics.cpp
rename to services/mediametrics/main_mediametrics.cpp
index 6833fe2..ec392e2 100644
--- a/services/mediaanalytics/main_mediametrics.cpp
+++ b/services/mediametrics/main_mediametrics.cpp
@@ -18,7 +18,7 @@
 //#define LOG_NDEBUG 0
 #include <utils/Log.h>
 
-#include "MediaAnalyticsService.h"
+#include "MediaMetricsService.h"
 
 #include <binder/IPCThreadState.h>
 #include <binder/IServiceManager.h>
@@ -34,10 +34,10 @@
     // 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], MediaAnalyticsService::kServiceName);
+    strcpy(argv[0], MediaMetricsService::kServiceName);
 
     defaultServiceManager()->addService(
-            String16(MediaAnalyticsService::kServiceName), new MediaAnalyticsService());
+            String16(MediaMetricsService::kServiceName), new MediaMetricsService());
 
     sp<ProcessState> processState(ProcessState::self());
     // processState->setThreadPoolMaxThreadCount(8);
diff --git a/services/mediaanalytics/mediametrics.rc b/services/mediametrics/mediametrics.rc
similarity index 100%
rename from services/mediaanalytics/mediametrics.rc
rename to services/mediametrics/mediametrics.rc
diff --git a/services/mediaanalytics/statsd_audiopolicy.cpp b/services/mediametrics/statsd_audiopolicy.cpp
similarity index 95%
rename from services/mediaanalytics/statsd_audiopolicy.cpp
rename to services/mediametrics/statsd_audiopolicy.cpp
index 95cb274..634c801 100644
--- a/services/mediaanalytics/statsd_audiopolicy.cpp
+++ b/services/mediametrics/statsd_audiopolicy.cpp
@@ -31,18 +31,18 @@
 
 #include <statslog.h>
 
-#include "MediaAnalyticsService.h"
+#include "MediaMetricsService.h"
 #include "frameworks/base/core/proto/android/stats/mediametrics/mediametrics.pb.h"
 #include "iface_statsd.h"
 
 namespace android {
 
-bool statsd_audiopolicy(MediaAnalyticsItem *item)
+bool statsd_audiopolicy(const mediametrics::Item *item)
 {
     if (item == NULL) return false;
 
     // these go into the statsd wrapper
-    nsecs_t timestamp = item->getTimestamp();
+    const nsecs_t timestamp = MediaMetricsService::roundTime(item->getTimestamp());
     std::string pkgName = item->getPkgName();
     int64_t pkgVersionCode = item->getPkgVersionCode();
     int64_t mediaApexVersion = 0;
diff --git a/services/mediaanalytics/statsd_audiorecord.cpp b/services/mediametrics/statsd_audiorecord.cpp
similarity index 96%
rename from services/mediaanalytics/statsd_audiorecord.cpp
rename to services/mediametrics/statsd_audiorecord.cpp
index 7c7a62c..69d1661 100644
--- a/services/mediaanalytics/statsd_audiorecord.cpp
+++ b/services/mediametrics/statsd_audiorecord.cpp
@@ -31,18 +31,18 @@
 
 #include <statslog.h>
 
-#include "MediaAnalyticsService.h"
+#include "MediaMetricsService.h"
 #include "frameworks/base/core/proto/android/stats/mediametrics/mediametrics.pb.h"
 #include "iface_statsd.h"
 
 namespace android {
 
-bool statsd_audiorecord(MediaAnalyticsItem *item)
+bool statsd_audiorecord(const mediametrics::Item *item)
 {
     if (item == NULL) return false;
 
     // these go into the statsd wrapper
-    nsecs_t timestamp = item->getTimestamp();
+    const nsecs_t timestamp = MediaMetricsService::roundTime(item->getTimestamp());
     std::string pkgName = item->getPkgName();
     int64_t pkgVersionCode = item->getPkgVersionCode();
     int64_t mediaApexVersion = 0;
diff --git a/services/mediaanalytics/statsd_audiothread.cpp b/services/mediametrics/statsd_audiothread.cpp
similarity index 97%
rename from services/mediaanalytics/statsd_audiothread.cpp
rename to services/mediametrics/statsd_audiothread.cpp
index e9d6b17..300151b 100644
--- a/services/mediaanalytics/statsd_audiothread.cpp
+++ b/services/mediametrics/statsd_audiothread.cpp
@@ -31,18 +31,18 @@
 
 #include <statslog.h>
 
-#include "MediaAnalyticsService.h"
+#include "MediaMetricsService.h"
 #include "frameworks/base/core/proto/android/stats/mediametrics/mediametrics.pb.h"
 #include "iface_statsd.h"
 
 namespace android {
 
-bool statsd_audiothread(MediaAnalyticsItem *item)
+bool statsd_audiothread(const mediametrics::Item *item)
 {
     if (item == NULL) return false;
 
     // these go into the statsd wrapper
-    nsecs_t timestamp = item->getTimestamp();
+    const nsecs_t timestamp = MediaMetricsService::roundTime(item->getTimestamp());
     std::string pkgName = item->getPkgName();
     int64_t pkgVersionCode = item->getPkgVersionCode();
     int64_t mediaApexVersion = 0;
diff --git a/services/mediaanalytics/statsd_audiotrack.cpp b/services/mediametrics/statsd_audiotrack.cpp
similarity index 96%
rename from services/mediaanalytics/statsd_audiotrack.cpp
rename to services/mediametrics/statsd_audiotrack.cpp
index 57cda99..397cdf3 100644
--- a/services/mediaanalytics/statsd_audiotrack.cpp
+++ b/services/mediametrics/statsd_audiotrack.cpp
@@ -31,18 +31,18 @@
 
 #include <statslog.h>
 
-#include "MediaAnalyticsService.h"
+#include "MediaMetricsService.h"
 #include "frameworks/base/core/proto/android/stats/mediametrics/mediametrics.pb.h"
 #include "iface_statsd.h"
 
 namespace android {
 
-bool statsd_audiotrack(MediaAnalyticsItem *item)
+bool statsd_audiotrack(const mediametrics::Item *item)
 {
     if (item == NULL) return false;
 
     // these go into the statsd wrapper
-    nsecs_t timestamp = item->getTimestamp();
+    const nsecs_t timestamp = MediaMetricsService::roundTime(item->getTimestamp());
     std::string pkgName = item->getPkgName();
     int64_t pkgVersionCode = item->getPkgVersionCode();
     int64_t mediaApexVersion = 0;
diff --git a/services/mediaanalytics/statsd_codec.cpp b/services/mediametrics/statsd_codec.cpp
similarity index 97%
rename from services/mediaanalytics/statsd_codec.cpp
rename to services/mediametrics/statsd_codec.cpp
index bf82e50..214c51a 100644
--- a/services/mediaanalytics/statsd_codec.cpp
+++ b/services/mediametrics/statsd_codec.cpp
@@ -31,18 +31,18 @@
 
 #include <statslog.h>
 
-#include "MediaAnalyticsService.h"
+#include "MediaMetricsService.h"
 #include "frameworks/base/core/proto/android/stats/mediametrics/mediametrics.pb.h"
 #include "iface_statsd.h"
 
 namespace android {
 
-bool statsd_codec(MediaAnalyticsItem *item)
+bool statsd_codec(const mediametrics::Item *item)
 {
     if (item == NULL) return false;
 
     // these go into the statsd wrapper
-    nsecs_t timestamp = item->getTimestamp();
+    const nsecs_t timestamp = MediaMetricsService::roundTime(item->getTimestamp());
     std::string pkgName = item->getPkgName();
     int64_t pkgVersionCode = item->getPkgVersionCode();
     int64_t mediaApexVersion = 0;
diff --git a/services/mediaanalytics/statsd_drm.cpp b/services/mediametrics/statsd_drm.cpp
similarity index 90%
rename from services/mediaanalytics/statsd_drm.cpp
rename to services/mediametrics/statsd_drm.cpp
index 845383d..b12f4f3 100644
--- a/services/mediaanalytics/statsd_drm.cpp
+++ b/services/mediametrics/statsd_drm.cpp
@@ -30,7 +30,7 @@
 #include <string.h>
 #include <pwd.h>
 
-#include "MediaAnalyticsService.h"
+#include "MediaMetricsService.h"
 #include "iface_statsd.h"
 
 #include <statslog.h>
@@ -38,11 +38,11 @@
 namespace android {
 
 // mediadrm
-bool statsd_mediadrm(MediaAnalyticsItem *item)
+bool statsd_mediadrm(const mediametrics::Item *item)
 {
     if (item == NULL) return false;
 
-    nsecs_t timestamp = item->getTimestamp();
+    const nsecs_t timestamp = MediaMetricsService::roundTime(item->getTimestamp());
     std::string pkgName = item->getPkgName();
     int64_t pkgVersionCode = item->getPkgVersionCode();
     int64_t mediaApexVersion = 0;
@@ -75,11 +75,11 @@
 }
 
 // widevineCDM
-bool statsd_widevineCDM(MediaAnalyticsItem *item)
+bool statsd_widevineCDM(const mediametrics::Item *item)
 {
     if (item == NULL) return false;
 
-    nsecs_t timestamp = item->getTimestamp();
+    const nsecs_t timestamp = MediaMetricsService::roundTime(item->getTimestamp());
     std::string pkgName = item->getPkgName();
     int64_t pkgVersionCode = item->getPkgVersionCode();
     int64_t mediaApexVersion = 0;
@@ -105,11 +105,11 @@
 }
 
 // drmmanager
-bool statsd_drmmanager(MediaAnalyticsItem *item)
+bool statsd_drmmanager(const mediametrics::Item *item)
 {
     if (item == NULL) return false;
 
-    nsecs_t timestamp = item->getTimestamp();
+    const nsecs_t timestamp = MediaMetricsService::roundTime(item->getTimestamp());
     std::string pkgName = item->getPkgName();
     int64_t pkgVersionCode = item->getPkgVersionCode();
     int64_t mediaApexVersion = 0;
diff --git a/services/mediaanalytics/statsd_extractor.cpp b/services/mediametrics/statsd_extractor.cpp
similarity index 93%
rename from services/mediaanalytics/statsd_extractor.cpp
rename to services/mediametrics/statsd_extractor.cpp
index d84930c..8574358 100644
--- a/services/mediaanalytics/statsd_extractor.cpp
+++ b/services/mediametrics/statsd_extractor.cpp
@@ -31,18 +31,18 @@
 
 #include <statslog.h>
 
-#include "MediaAnalyticsService.h"
+#include "MediaMetricsService.h"
 #include "frameworks/base/core/proto/android/stats/mediametrics/mediametrics.pb.h"
 #include "iface_statsd.h"
 
 namespace android {
 
-bool statsd_extractor(MediaAnalyticsItem *item)
+bool statsd_extractor(const mediametrics::Item *item)
 {
     if (item == NULL) return false;
 
     // these go into the statsd wrapper
-    nsecs_t timestamp = item->getTimestamp();
+    const nsecs_t timestamp = MediaMetricsService::roundTime(item->getTimestamp());
     std::string pkgName = item->getPkgName();
     int64_t pkgVersionCode = item->getPkgVersionCode();
     int64_t mediaApexVersion = 0;
diff --git a/services/mediaanalytics/statsd_nuplayer.cpp b/services/mediametrics/statsd_nuplayer.cpp
similarity index 96%
rename from services/mediaanalytics/statsd_nuplayer.cpp
rename to services/mediametrics/statsd_nuplayer.cpp
index e6e0f2c..df7e59f 100644
--- a/services/mediaanalytics/statsd_nuplayer.cpp
+++ b/services/mediametrics/statsd_nuplayer.cpp
@@ -31,7 +31,7 @@
 
 #include <statslog.h>
 
-#include "MediaAnalyticsService.h"
+#include "MediaMetricsService.h"
 #include "frameworks/base/core/proto/android/stats/mediametrics/mediametrics.pb.h"
 #include "iface_statsd.h"
 
@@ -41,12 +41,12 @@
  *  handles nuplayer AND nuplayer2
  *  checks for the union of what the two players generate
  */
-bool statsd_nuplayer(MediaAnalyticsItem *item)
+bool statsd_nuplayer(const mediametrics::Item *item)
 {
     if (item == NULL) return false;
 
     // these go into the statsd wrapper
-    nsecs_t timestamp = item->getTimestamp();
+    const nsecs_t timestamp = MediaMetricsService::roundTime(item->getTimestamp());
     std::string pkgName = item->getPkgName();
     int64_t pkgVersionCode = item->getPkgVersionCode();
     int64_t mediaApexVersion = 0;
diff --git a/services/mediaanalytics/statsd_recorder.cpp b/services/mediametrics/statsd_recorder.cpp
similarity index 97%
rename from services/mediaanalytics/statsd_recorder.cpp
rename to services/mediametrics/statsd_recorder.cpp
index d286f00..4de1746 100644
--- a/services/mediaanalytics/statsd_recorder.cpp
+++ b/services/mediametrics/statsd_recorder.cpp
@@ -31,18 +31,18 @@
 
 #include <statslog.h>
 
-#include "MediaAnalyticsService.h"
+#include "MediaMetricsService.h"
 #include "frameworks/base/core/proto/android/stats/mediametrics/mediametrics.pb.h"
 #include "iface_statsd.h"
 
 namespace android {
 
-bool statsd_recorder(MediaAnalyticsItem *item)
+bool statsd_recorder(const mediametrics::Item *item)
 {
     if (item == NULL) return false;
 
     // these go into the statsd wrapper
-    nsecs_t timestamp = item->getTimestamp();
+    const nsecs_t timestamp = MediaMetricsService::roundTime(item->getTimestamp());
     std::string pkgName = item->getPkgName();
     int64_t pkgVersionCode = item->getPkgVersionCode();
     int64_t mediaApexVersion = 0;
diff --git a/services/mediaanalytics/tests/Android.bp b/services/mediametrics/tests/Android.bp
similarity index 80%
rename from services/mediaanalytics/tests/Android.bp
rename to services/mediametrics/tests/Android.bp
index a8a330c..9eb2d89 100644
--- a/services/mediaanalytics/tests/Android.bp
+++ b/services/mediametrics/tests/Android.bp
@@ -9,14 +9,14 @@
     ],
 
     include_dirs: [
-        "frameworks/av/services/mediaanalytics",
+        "frameworks/av/services/mediametrics",
     ],
 
     shared_libs: [
         "libbinder",
         "liblog",
-        "libmediaanalyticsservice",
         "libmediametrics",
+        "libmediametricsservice",
         "libutils",
     ],
 
diff --git a/services/mediaanalytics/tests/build_and_run_all_unit_tests.sh b/services/mediametrics/tests/build_and_run_all_unit_tests.sh
similarity index 82%
rename from services/mediaanalytics/tests/build_and_run_all_unit_tests.sh
rename to services/mediametrics/tests/build_and_run_all_unit_tests.sh
index 2511c30..382be47 100755
--- a/services/mediaanalytics/tests/build_and_run_all_unit_tests.sh
+++ b/services/mediametrics/tests/build_and_run_all_unit_tests.sh
@@ -20,5 +20,5 @@
 echo "========================================"
 
 echo "testing mediametrics"
-adb push $OUT/data/nativetest/mediametrics_tests/mediametrics_tests /system/bin
+adb push $OUT/data/nativetest64/mediametrics_tests/mediametrics_tests /system/bin
 adb shell /system/bin/mediametrics_tests
diff --git a/services/mediametrics/tests/mediametrics_tests.cpp b/services/mediametrics/tests/mediametrics_tests.cpp
new file mode 100644
index 0000000..ccf2d63
--- /dev/null
+++ b/services/mediametrics/tests/mediametrics_tests.cpp
@@ -0,0 +1,633 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT 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_tests"
+#include <utils/Log.h>
+
+#include "MediaMetricsService.h"
+
+#include <stdio.h>
+
+#include <gtest/gtest.h>
+#include <media/MediaMetricsItem.h>
+
+using namespace android;
+
+static size_t countNewlines(const char *s) {
+    size_t count = 0;
+    while ((s = strchr(s, '\n')) != nullptr) {
+        ++s;
+        ++count;
+    }
+    return count;
+}
+
+TEST(mediametrics_tests, startsWith) {
+  std::string s("test");
+  ASSERT_EQ(true, android::mediametrics::startsWith(s, "te"));
+  ASSERT_EQ(true, android::mediametrics::startsWith(s, std::string("tes")));
+  ASSERT_EQ(false, android::mediametrics::startsWith(s, "ts"));
+  ASSERT_EQ(false, android::mediametrics::startsWith(s, std::string("est")));
+}
+
+TEST(mediametrics_tests, defer) {
+  bool check = false;
+  {
+      android::mediametrics::Defer defer([&] { check = true; });
+      ASSERT_EQ(false, check);
+  }
+  ASSERT_EQ(true, check);
+}
+
+TEST(mediametrics_tests, instantiate) {
+  sp mediaMetrics = new MediaMetricsService();
+  status_t status;
+
+  // random keys ignored when empty
+  std::unique_ptr<mediametrics::Item> random_key(mediametrics::Item::create("random_key"));
+  status = mediaMetrics->submit(random_key.get());
+  ASSERT_EQ(PERMISSION_DENIED, status);
+
+  // random keys ignored with data
+  random_key->setInt32("foo", 10);
+  status = mediaMetrics->submit(random_key.get());
+  ASSERT_EQ(PERMISSION_DENIED, status);
+
+  // known keys ignored if empty
+  std::unique_ptr<mediametrics::Item> audiotrack_key(mediametrics::Item::create("audiotrack"));
+  status = mediaMetrics->submit(audiotrack_key.get());
+  ASSERT_EQ(BAD_VALUE, status);
+
+  // known keys not ignored if not empty
+  audiotrack_key->addInt32("foo", 10);
+  status = mediaMetrics->submit(audiotrack_key.get());
+  ASSERT_EQ(NO_ERROR, status);
+
+
+  /*
+  // fluent style that goes directly to mediametrics
+  ASSERT_EQ(true, mediametrics::Item("audiorecord")
+                     .setInt32("value", 2)
+                     .addInt32("bar", 1)
+                     .addInt32("value", 3)
+                     .selfrecord());
+  */
+
+  mediaMetrics->dump(fileno(stdout), {} /* args */);
+}
+
+TEST(mediametrics_tests, item_manipulation) {
+  mediametrics::Item item("audiorecord");
+
+  item.setInt32("value", 2).addInt32("bar", 3).addInt32("value", 4);
+
+  int32_t i32;
+  ASSERT_TRUE(item.getInt32("value", &i32));
+  ASSERT_EQ(6, i32);
+
+  ASSERT_TRUE(item.getInt32("bar", &i32));
+  ASSERT_EQ(3, i32);
+
+  item.setInt64("big", INT64_MAX).setInt64("smaller", INT64_MAX - 1).addInt64("smaller", -2);
+
+  int64_t i64;
+  ASSERT_TRUE(item.getInt64("big", &i64));
+  ASSERT_EQ(INT64_MAX, i64);
+
+  ASSERT_TRUE(item.getInt64("smaller", &i64));
+  ASSERT_EQ(INT64_MAX - 3, i64);
+
+  item.setDouble("precise", 10.5).setDouble("small", 0.125).addDouble("precise", 0.25);
+
+  double d;
+  ASSERT_TRUE(item.getDouble("precise", &d));
+  ASSERT_EQ(10.75, d);
+
+  ASSERT_TRUE(item.getDouble("small", &d));
+  ASSERT_EQ(0.125, d);
+
+  char *s;
+  item.setCString("name", "Frank").setCString("mother", "June").setCString("mother", "July");
+  ASSERT_TRUE(item.getCString("name", &s));
+  ASSERT_EQ(0, strcmp(s, "Frank"));
+  free(s);
+
+  ASSERT_TRUE(item.getCString("mother", &s));
+  ASSERT_EQ(0, strcmp(s, "July"));  // "July" overwrites "June"
+  free(s);
+
+  item.setRate("burgersPerHour", 5, 2);
+  int64_t b, h;
+  ASSERT_TRUE(item.getRate("burgersPerHour", &b, &h, &d));
+  ASSERT_EQ(5, b);
+  ASSERT_EQ(2, h);
+  ASSERT_EQ(2.5, d);
+
+  item.addRate("burgersPerHour", 4, 2);
+  ASSERT_TRUE(item.getRate("burgersPerHour", &b, &h, &d));
+  ASSERT_EQ(9, b);
+  ASSERT_EQ(4, h);
+  ASSERT_EQ(2.25, d);
+
+  printf("item: %s\n", item.toString().c_str());
+  fflush(stdout);
+
+  sp mediaMetrics = new MediaMetricsService();
+  status_t status = mediaMetrics->submit(&item);
+  ASSERT_EQ(NO_ERROR, status);
+  mediaMetrics->dump(fileno(stdout), {} /* args */);
+}
+
+TEST(mediametrics_tests, superbig_item) {
+  mediametrics::Item item("TheBigOne");
+  constexpr size_t count = 10000;
+
+  for (size_t i = 0; i < count; ++i) {
+    item.setInt32(std::to_string(i).c_str(), i);
+  }
+  for (size_t i = 0; i < count; ++i) {
+    int32_t i32;
+    ASSERT_TRUE(item.getInt32(std::to_string(i).c_str(), &i32));
+    ASSERT_EQ((int32_t)i, i32);
+  }
+}
+
+TEST(mediametrics_tests, superbig_item_removal) {
+  mediametrics::Item item("TheOddBigOne");
+  constexpr size_t count = 10000;
+
+  for (size_t i = 0; i < count; ++i) {
+    item.setInt32(std::to_string(i).c_str(), i);
+  }
+  for (size_t i = 0; i < count; i += 2) {
+    item.filter(std::to_string(i).c_str()); // filter out all the evens.
+  }
+  for (size_t i = 0; i < count; ++i) {
+    int32_t i32;
+    if (i & 1) { // check to see that only the odds are left.
+        ASSERT_TRUE(item.getInt32(std::to_string(i).c_str(), &i32));
+        ASSERT_EQ((int32_t)i, i32);
+    } else {
+        ASSERT_FALSE(item.getInt32(std::to_string(i).c_str(), &i32));
+    }
+  }
+}
+
+TEST(mediametrics_tests, superbig_item_removal2) {
+  mediametrics::Item item("TheOne");
+  constexpr size_t count = 10000;
+
+  for (size_t i = 0; i < count; ++i) {
+    item.setInt32(std::to_string(i).c_str(), i);
+  }
+  static const char *attrs[] = { "1", };
+  item.filterNot(1, attrs);
+
+  for (size_t i = 0; i < count; ++i) {
+    int32_t i32;
+    if (i == 1) { // check to see that there is only one
+        ASSERT_TRUE(item.getInt32(std::to_string(i).c_str(), &i32));
+        ASSERT_EQ((int32_t)i, i32);
+    } else {
+        ASSERT_FALSE(item.getInt32(std::to_string(i).c_str(), &i32));
+    }
+  }
+}
+
+TEST(mediametrics_tests, item_transmutation) {
+  mediametrics::Item item("Alchemist's Stone");
+
+  item.setInt64("convert", 123);
+  int64_t i64;
+  ASSERT_TRUE(item.getInt64("convert", &i64));
+  ASSERT_EQ(123, i64);
+
+  item.addInt32("convert", 2);     // changes type of 'convert' from i64 to i32 (and re-init).
+  ASSERT_FALSE(item.getInt64("convert", &i64));  // should be false, no value in i64.
+
+  int32_t i32;
+  ASSERT_TRUE(item.getInt32("convert", &i32));   // check it is i32 and 2 (123 is discarded).
+  ASSERT_EQ(2, i32);
+}
+
+TEST(mediametrics_tests, item_binderization) {
+  mediametrics::Item item;
+  item.setInt32("i32", 1)
+      .setInt64("i64", 2)
+      .setDouble("double", 3.1)
+      .setCString("string", "abc")
+      .setRate("rate", 11, 12);
+
+  Parcel p;
+  item.writeToParcel(&p);
+
+  p.setDataPosition(0); // rewind for reading
+  mediametrics::Item item2;
+  item2.readFromParcel(p);
+
+  ASSERT_EQ(item, item2);
+}
+
+TEST(mediametrics_tests, item_byteserialization) {
+  mediametrics::Item item;
+  item.setInt32("i32", 1)
+      .setInt64("i64", 2)
+      .setDouble("double", 3.1)
+      .setCString("string", "abc")
+      .setRate("rate", 11, 12);
+
+  char *data;
+  size_t length;
+  ASSERT_EQ(0, item.writeToByteString(&data, &length));
+  ASSERT_GT(length, (size_t)0);
+
+  mediametrics::Item item2;
+  item2.readFromByteString(data, length);
+
+  printf("item: %s\n", item.toString().c_str());
+  printf("item2: %s\n", item2.toString().c_str());
+  ASSERT_EQ(item, item2);
+
+  free(data);
+}
+
+TEST(mediametrics_tests, item_iteration) {
+  mediametrics::Item item;
+  item.setInt32("i32", 1)
+      .setInt64("i64", 2)
+      .setDouble("double", 3.125)
+      .setCString("string", "abc")
+      .setRate("rate", 11, 12);
+
+  int mask = 0;
+  for (auto &prop : item) {
+      const char *name = prop.getName();
+      if (!strcmp(name, "i32")) {
+          int32_t i32;
+          ASSERT_TRUE(prop.get(&i32));
+          ASSERT_EQ(1, i32);
+          ASSERT_EQ(1, std::get<int32_t>(prop.get()));
+          mask |= 1;
+      } else if (!strcmp(name, "i64")) {
+          int64_t i64;
+          ASSERT_TRUE(prop.get(&i64));
+          ASSERT_EQ(2, i64);
+          ASSERT_EQ(2, std::get<int64_t>(prop.get()));
+          mask |= 2;
+      } else if (!strcmp(name, "double")) {
+          double d;
+          ASSERT_TRUE(prop.get(&d));
+          ASSERT_EQ(3.125, d);
+          ASSERT_EQ(3.125, std::get<double>(prop.get()));
+          mask |= 4;
+      } else if (!strcmp(name, "string")) {
+          std::string s;
+          ASSERT_TRUE(prop.get(&s));
+          ASSERT_EQ("abc", s);
+          ASSERT_EQ(s, std::get<std::string>(prop.get()));
+          mask |= 8;
+      } else if (!strcmp(name, "rate")) {
+          std::pair<int64_t, int64_t> r;
+          ASSERT_TRUE(prop.get(&r));
+          ASSERT_EQ(11, r.first);
+          ASSERT_EQ(12, r.second);
+          ASSERT_EQ(r, std::get<decltype(r)>(prop.get()));
+          mask |= 16;
+      } else {
+          FAIL();
+      }
+  }
+  ASSERT_EQ(31, mask);
+}
+
+TEST(mediametrics_tests, item_expansion) {
+  mediametrics::LogItem<1> item("I");
+  item.set("i32", (int32_t)1)
+      .set("i64", (int64_t)2)
+      .set("double", (double)3.125)
+      .set("string", "abcdefghijklmnopqrstuvwxyz")
+      .set("rate", std::pair<int64_t, int64_t>(11, 12));
+  ASSERT_TRUE(item.updateHeader());
+
+  mediametrics::Item item2;
+  item2.readFromByteString(item.getBuffer(), item.getLength());
+  ASSERT_EQ((pid_t)-1, item2.getPid());
+  ASSERT_EQ((uid_t)-1, item2.getUid());
+  int mask = 0;
+  for (auto &prop : item2) {
+      const char *name = prop.getName();
+      if (!strcmp(name, "i32")) {
+          int32_t i32;
+          ASSERT_TRUE(prop.get(&i32));
+          ASSERT_EQ(1, i32);
+          mask |= 1;
+      } else if (!strcmp(name, "i64")) {
+          int64_t i64;
+          ASSERT_TRUE(prop.get(&i64));
+          ASSERT_EQ(2, i64);
+          mask |= 2;
+      } else if (!strcmp(name, "double")) {
+          double d;
+          ASSERT_TRUE(prop.get(&d));
+          ASSERT_EQ(3.125, d);
+          mask |= 4;
+      } else if (!strcmp(name, "string")) {
+          std::string s;
+          ASSERT_TRUE(prop.get(&s));
+          ASSERT_EQ("abcdefghijklmnopqrstuvwxyz", s);
+          mask |= 8;
+      } else if (!strcmp(name, "rate")) {
+          std::pair<int64_t, int64_t> r;
+          ASSERT_TRUE(prop.get(&r));
+          ASSERT_EQ(11, r.first);
+          ASSERT_EQ(12, r.second);
+          mask |= 16;
+      } else {
+          FAIL();
+      }
+  }
+  ASSERT_EQ(31, mask);
+}
+
+TEST(mediametrics_tests, item_expansion2) {
+  mediametrics::LogItem<1> item("Bigly");
+  item.setPid(123)
+      .setUid(456);
+  constexpr size_t count = 10000;
+
+  for (size_t i = 0; i < count; ++i) {
+    // printf("recording %zu, %p, len:%zu of %zu  remaining:%zu \n", i, item.getBuffer(), item.getLength(), item.getCapacity(), item.getRemaining());
+    item.set(std::to_string(i).c_str(), (int32_t)i);
+  }
+  ASSERT_TRUE(item.updateHeader());
+
+  mediametrics::Item item2;
+  printf("begin buffer:%p  length:%zu\n", item.getBuffer(), item.getLength());
+  fflush(stdout);
+  item2.readFromByteString(item.getBuffer(), item.getLength());
+
+  ASSERT_EQ((pid_t)123, item2.getPid());
+  ASSERT_EQ((uid_t)456, item2.getUid());
+  for (size_t i = 0; i < count; ++i) {
+    int32_t i32;
+    ASSERT_TRUE(item2.getInt32(std::to_string(i).c_str(), &i32));
+    ASSERT_EQ((int32_t)i, i32);
+  }
+}
+
+TEST(mediametrics_tests, time_machine_storage) {
+  auto item = std::make_shared<mediametrics::Item>("Key");
+  (*item).set("i32", (int32_t)1)
+      .set("i64", (int64_t)2)
+      .set("double", (double)3.125)
+      .set("string", "abcdefghijklmnopqrstuvwxyz")
+      .set("rate", std::pair<int64_t, int64_t>(11, 12));
+
+  // Let's put the item in
+  android::mediametrics::TimeMachine timeMachine;
+  ASSERT_EQ(NO_ERROR, timeMachine.put(item, true));
+
+  // Can we read the values?
+  int32_t i32;
+  ASSERT_EQ(NO_ERROR, timeMachine.get("Key", "i32", &i32, -1));
+  ASSERT_EQ(1, i32);
+
+  int64_t i64;
+  ASSERT_EQ(NO_ERROR, timeMachine.get("Key", "i64", &i64, -1));
+  ASSERT_EQ(2, i64);
+
+  double d;
+  ASSERT_EQ(NO_ERROR, timeMachine.get("Key", "double", &d, -1));
+  ASSERT_EQ(3.125, d);
+
+  std::string s;
+  ASSERT_EQ(NO_ERROR, timeMachine.get("Key", "string", &s, -1));
+  ASSERT_EQ("abcdefghijklmnopqrstuvwxyz", s);
+
+  // Using fully qualified name?
+  i32 = 0;
+  ASSERT_EQ(NO_ERROR, timeMachine.get("Key.i32", &i32, -1));
+  ASSERT_EQ(1, i32);
+
+  i64 = 0;
+  ASSERT_EQ(NO_ERROR, timeMachine.get("Key.i64", &i64, -1));
+  ASSERT_EQ(2, i64);
+
+  d = 0.;
+  ASSERT_EQ(NO_ERROR, timeMachine.get("Key.double", &d, -1));
+  ASSERT_EQ(3.125, d);
+
+  s.clear();
+  ASSERT_EQ(NO_ERROR, timeMachine.get("Key.string", &s, -1));
+  ASSERT_EQ("abcdefghijklmnopqrstuvwxyz", s);
+}
+
+TEST(mediametrics_tests, time_machine_remote_key) {
+  auto item = std::make_shared<mediametrics::Item>("Key1");
+  (*item).set("one", (int32_t)1)
+         .set("two", (int32_t)2);
+
+  android::mediametrics::TimeMachine timeMachine;
+  ASSERT_EQ(NO_ERROR, timeMachine.put(item, true));
+
+  auto item2 = std::make_shared<mediametrics::Item>("Key2");
+  (*item2).set("three", (int32_t)3)
+         .set("[Key1]four", (int32_t)4)   // affects Key1
+         .set("[Key1]five", (int32_t)5);  // affects key1
+
+  ASSERT_EQ(NO_ERROR, timeMachine.put(item2, true));
+
+  auto item3 = std::make_shared<mediametrics::Item>("Key2");
+  (*item3).set("six", (int32_t)6)
+         .set("[Key1]seven", (int32_t)7);   // affects Key1
+
+  ASSERT_EQ(NO_ERROR, timeMachine.put(item3, false)); // remote keys not allowed.
+
+  // Can we read the values?
+  int32_t i32;
+  ASSERT_EQ(NO_ERROR, timeMachine.get("Key1.one", &i32, -1));
+  ASSERT_EQ(1, i32);
+
+  ASSERT_EQ(NO_ERROR, timeMachine.get("Key1.two", &i32, -1));
+  ASSERT_EQ(2, i32);
+
+  ASSERT_EQ(BAD_VALUE, timeMachine.get("Key1.three", &i32, -1));
+
+  ASSERT_EQ(NO_ERROR, timeMachine.get("Key2.three", &i32, -1));
+  ASSERT_EQ(3, i32);
+
+  ASSERT_EQ(NO_ERROR, timeMachine.get("Key1.four", &i32, -1));
+  ASSERT_EQ(4, i32);
+
+  ASSERT_EQ(BAD_VALUE, timeMachine.get("Key2.four", &i32, -1));
+
+  ASSERT_EQ(NO_ERROR, timeMachine.get("Key1.five", &i32, -1));
+  ASSERT_EQ(5, i32);
+
+  ASSERT_EQ(BAD_VALUE, timeMachine.get("Key2.five", &i32, -1));
+
+  ASSERT_EQ(NO_ERROR, timeMachine.get("Key2.six", &i32, -1));
+  ASSERT_EQ(6, i32);
+
+  ASSERT_EQ(BAD_VALUE, timeMachine.get("Key2.seven", &i32, -1));
+}
+
+TEST(mediametrics_tests, time_machine_gc) {
+  auto item = std::make_shared<mediametrics::Item>("Key1");
+  (*item).set("one", (int32_t)1)
+         .set("two", (int32_t)2)
+         .setTimestamp(10);
+
+  android::mediametrics::TimeMachine timeMachine(1, 2); // keep at most 2 keys.
+
+  ASSERT_EQ((size_t)0, timeMachine.size());
+
+  ASSERT_EQ(NO_ERROR, timeMachine.put(item, true));
+
+  ASSERT_EQ((size_t)1, timeMachine.size());
+
+  auto item2 = std::make_shared<mediametrics::Item>("Key2");
+  (*item2).set("three", (int32_t)3)
+         .set("[Key1]three", (int32_t)3)
+         .setTimestamp(11);
+
+  ASSERT_EQ(NO_ERROR, timeMachine.put(item2, true));
+  ASSERT_EQ((size_t)2, timeMachine.size());
+
+  //printf("Before\n%s\n\n", timeMachine.dump().c_str());
+
+  auto item3 = std::make_shared<mediametrics::Item>("Key3");
+  (*item3).set("six", (int32_t)6)
+          .set("[Key1]four", (int32_t)4)   // affects Key1
+          .set("[Key1]five", (int32_t)5)   // affects key1
+          .setTimestamp(12);
+
+  ASSERT_EQ(NO_ERROR, timeMachine.put(item3, true));
+
+  ASSERT_EQ((size_t)2, timeMachine.size());
+
+  // Can we read the values?
+  int32_t i32;
+  ASSERT_EQ(BAD_VALUE, timeMachine.get("Key1.one", &i32, -1));
+  ASSERT_EQ(BAD_VALUE, timeMachine.get("Key1.two", &i32, -1));
+  ASSERT_EQ(BAD_VALUE, timeMachine.get("Key1.three", &i32, -1));
+  ASSERT_EQ(BAD_VALUE, timeMachine.get("Key1.four", &i32, -1));
+  ASSERT_EQ(BAD_VALUE, timeMachine.get("Key1.five", &i32, -1));
+
+  ASSERT_EQ(NO_ERROR, timeMachine.get("Key2.three", &i32, -1));
+  ASSERT_EQ(3, i32);
+
+  ASSERT_EQ(NO_ERROR, timeMachine.get("Key3.six", &i32, -1));
+  ASSERT_EQ(6, i32);
+
+  printf("After\n%s\n", timeMachine.dump().first.c_str());
+}
+
+TEST(mediametrics_tests, transaction_log_gc) {
+  auto item = std::make_shared<mediametrics::Item>("Key1");
+  (*item).set("one", (int32_t)1)
+         .set("two", (int32_t)2)
+         .setTimestamp(10);
+
+  android::mediametrics::TransactionLog transactionLog(1, 2); // keep at most 2 items
+  ASSERT_EQ((size_t)0, transactionLog.size());
+
+  ASSERT_EQ(NO_ERROR, transactionLog.put(item));
+  ASSERT_EQ((size_t)1, transactionLog.size());
+
+  auto item2 = std::make_shared<mediametrics::Item>("Key2");
+  (*item2).set("three", (int32_t)3)
+         .set("[Key1]three", (int32_t)3)
+         .setTimestamp(11);
+
+  ASSERT_EQ(NO_ERROR, transactionLog.put(item2));
+  ASSERT_EQ((size_t)2, transactionLog.size());
+
+  auto item3 = std::make_shared<mediametrics::Item>("Key3");
+  (*item3).set("six", (int32_t)6)
+          .set("[Key1]four", (int32_t)4)   // affects Key1
+          .set("[Key1]five", (int32_t)5)   // affects key1
+          .setTimestamp(12);
+
+  ASSERT_EQ(NO_ERROR, transactionLog.put(item3));
+  ASSERT_EQ((size_t)2, transactionLog.size());
+}
+
+TEST(mediametrics_tests, audio_analytics_permission) {
+  auto item = std::make_shared<mediametrics::Item>("audio.1");
+  (*item).set("one", (int32_t)1)
+         .set("two", (int32_t)2)
+         .setTimestamp(10);
+
+  auto item2 = std::make_shared<mediametrics::Item>("audio.1");
+  (*item2).set("three", (int32_t)3)
+         .setTimestamp(11);
+
+  auto item3 = std::make_shared<mediametrics::Item>("audio.2");
+  (*item3).set("four", (int32_t)4)
+          .setTimestamp(12);
+
+  android::mediametrics::AudioAnalytics audioAnalytics;
+
+  // untrusted entities cannot create a new key.
+  ASSERT_EQ(PERMISSION_DENIED, audioAnalytics.submit(item, false /* isTrusted */));
+  ASSERT_EQ(PERMISSION_DENIED, audioAnalytics.submit(item2, false /* isTrusted */));
+
+  // TODO: Verify contents of AudioAnalytics.
+  // Currently there is no getter API in AudioAnalytics besides dump.
+  ASSERT_EQ(4, audioAnalytics.dump(1000).second /* lines */);
+
+  ASSERT_EQ(NO_ERROR, audioAnalytics.submit(item, true /* isTrusted */));
+  // untrusted entities can add to an existing key
+  ASSERT_EQ(NO_ERROR, audioAnalytics.submit(item2, false /* isTrusted */));
+
+  // Check that we have some info in the dump.
+  ASSERT_LT(4, audioAnalytics.dump(1000).second /* lines */);
+}
+
+TEST(mediametrics_tests, audio_analytics_dump) {
+  auto item = std::make_shared<mediametrics::Item>("audio.1");
+  (*item).set("one", (int32_t)1)
+         .set("two", (int32_t)2)
+         .setTimestamp(10);
+
+  auto item2 = std::make_shared<mediametrics::Item>("audio.1");
+  (*item2).set("three", (int32_t)3)
+         .setTimestamp(11);
+
+  auto item3 = std::make_shared<mediametrics::Item>("audio.2");
+  (*item3).set("four", (int32_t)4)
+          .setTimestamp(12);
+
+  android::mediametrics::AudioAnalytics audioAnalytics;
+
+  ASSERT_EQ(NO_ERROR, audioAnalytics.submit(item, true /* isTrusted */));
+  // untrusted entities can add to an existing key
+  ASSERT_EQ(NO_ERROR, audioAnalytics.submit(item2, false /* isTrusted */));
+  ASSERT_EQ(NO_ERROR, audioAnalytics.submit(item3, true /* isTrusted */));
+
+  // find out how many lines we have.
+  auto [string, lines] = audioAnalytics.dump(1000);
+  ASSERT_EQ(lines, (int32_t) countNewlines(string.c_str()));
+
+  printf("AudioAnalytics: %s", string.c_str());
+  // ensure that dump operates over those lines.
+  for (int32_t ll = 0; ll < lines; ++ll) {
+      auto [s, l] = audioAnalytics.dump(ll);
+      ASSERT_EQ(ll, l);
+      ASSERT_EQ(ll, (int32_t) countNewlines(s.c_str()));
+  }
+}
diff --git a/services/mediatranscoding/.clang-format b/services/mediatranscoding/.clang-format
new file mode 100644
index 0000000..f14cc88
--- /dev/null
+++ b/services/mediatranscoding/.clang-format
@@ -0,0 +1,33 @@
+---
+BasedOnStyle: Google
+AllowShortFunctionsOnASingleLine: Inline
+AllowShortIfStatementsOnASingleLine: true
+AllowShortLoopsOnASingleLine: true
+BinPackArguments: true
+BinPackParameters: true
+CommentPragmas: NOLINT:.*
+ContinuationIndentWidth: 8
+DerivePointerAlignment: false
+IndentWidth: 4
+PointerAlignment: Left
+TabWidth: 4
+
+# Deviations from the above file:
+# "Don't indent the section label"
+AccessModifierOffset: -4
+# "Each line of text in your code should be at most 100 columns long."
+ColumnLimit: 100
+# "Constructor initializer lists can be all on one line or with subsequent
+# lines indented eight spaces.". clang-format does not support having the colon
+# on the same line as the constructor function name, so this is the best
+# approximation of that rule, which makes all entries in the list (except the
+# first one) have an eight space indentation.
+ConstructorInitializerIndentWidth: 6
+# There is nothing in go/droidcppstyle about case labels, but there seems to be
+# more code that does not indent the case labels in frameworks/base.
+IndentCaseLabels: false
+# There have been some bugs in which subsequent formatting operations introduce
+# weird comment jumps.
+ReflowComments: false
+# Android does support C++11 now.
+Standard: Cpp11
\ No newline at end of file
diff --git a/services/mediatranscoding/Android.bp b/services/mediatranscoding/Android.bp
new file mode 100644
index 0000000..3dc43f1
--- /dev/null
+++ b/services/mediatranscoding/Android.bp
@@ -0,0 +1,60 @@
+// service library
+cc_library_shared {
+    name: "libmediatranscodingservice",
+
+    srcs: ["MediaTranscodingService.cpp"],
+
+    shared_libs: [
+        "libbinder_ndk",
+        "liblog",
+    ],
+
+    static_libs: [
+        "mediatranscoding_aidl_interface-ndk_platform",
+    ],
+
+    cflags: [
+        "-Werror",
+        "-Wall",
+    ],
+}
+
+cc_binary {
+    name: "mediatranscoding",
+
+    srcs: [
+        "main_mediatranscodingservice.cpp",
+    ],
+
+    shared_libs: [
+        // TODO(hkuang): Use libbinder_ndk
+        "libbinder",
+        "libutils",
+        "liblog",
+        "libbase",
+        "libmediatranscodingservice",
+    ],
+
+    static_libs: [
+        "mediatranscoding_aidl_interface-ndk_platform",
+    ],
+
+    target: {
+        android: {
+            product_variables: {
+                malloc_not_svelte: {
+                    // Scudo increases memory footprint, so only enable on
+                    // non-svelte devices.
+                    shared_libs: ["libc_scudo"],
+                },
+            },
+        },
+    },
+
+    init_rc: ["mediatranscoding.rc"],
+
+    cflags: [
+        "-Werror",
+        "-Wall",
+    ],
+}
diff --git a/services/mediatranscoding/MODULE_LICENSE_APACHE2 b/services/mediatranscoding/MODULE_LICENSE_APACHE2
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/services/mediatranscoding/MODULE_LICENSE_APACHE2
diff --git a/services/mediatranscoding/MediaTranscodingService.cpp b/services/mediatranscoding/MediaTranscodingService.cpp
new file mode 100644
index 0000000..2680cee
--- /dev/null
+++ b/services/mediatranscoding/MediaTranscodingService.cpp
@@ -0,0 +1,89 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT 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 "MediaTranscodingService"
+#include "MediaTranscodingService.h"
+
+#include <android/binder_manager.h>
+#include <android/binder_process.h>
+#include <utils/Log.h>
+#include <utils/Vector.h>
+
+namespace android {
+
+namespace media {
+
+using android::media::MediaTranscodingService;
+
+MediaTranscodingService::MediaTranscodingService() {
+    ALOGV("MediaTranscodingService is created");
+}
+
+MediaTranscodingService::~MediaTranscodingService() {
+    ALOGE("Should not be in ~MediaTranscodingService");
+}
+
+binder_status_t MediaTranscodingService::dump(int /* fd */, const char** /*args*/,
+                                              uint32_t /*numArgs*/) {
+    // TODO(hkuang): Add implementation.
+    return OK;
+}
+
+//static
+void MediaTranscodingService::instantiate() {
+    std::shared_ptr<MediaTranscodingService> service =
+            ::ndk::SharedRefBase::make<MediaTranscodingService>();
+    binder_status_t status =
+            AServiceManager_addService(service->asBinder().get(), getServiceName());
+    if (status != STATUS_OK) {
+        return;
+    }
+}
+
+Status MediaTranscodingService::registerClient(
+        const std::shared_ptr<ITranscodingServiceClient>& /*in_client*/,
+        int32_t* /*_aidl_return*/) {
+    // TODO(hkuang): Add implementation.
+    return Status::ok();
+}
+
+Status MediaTranscodingService::unregisterClient(int32_t /*clientId*/, bool* /*_aidl_return*/) {
+    // TODO(hkuang): Add implementation.
+    return Status::ok();
+}
+
+Status MediaTranscodingService::submitRequest(int32_t /*clientId*/,
+                                              const TranscodingRequest& /*request*/,
+                                              TranscodingJob* /*job*/, int32_t* /*_aidl_return*/) {
+    // TODO(hkuang): Add implementation.
+    return Status::ok();
+}
+
+Status MediaTranscodingService::cancelJob(int32_t /*in_clientId*/, int32_t /*in_jobId*/,
+                                          bool* /*_aidl_return*/) {
+    // TODO(hkuang): Add implementation.
+    return Status::ok();
+}
+
+Status MediaTranscodingService::getJobWithId(int32_t /*in_jobId*/, TranscodingJob* /*out_job*/,
+                                             bool* /*_aidl_return*/) {
+    // TODO(hkuang): Add implementation.
+    return Status::ok();
+}
+
+}  // namespace media
+}  // namespace android
diff --git a/services/mediatranscoding/MediaTranscodingService.h b/services/mediatranscoding/MediaTranscodingService.h
new file mode 100644
index 0000000..c2c30b9
--- /dev/null
+++ b/services/mediatranscoding/MediaTranscodingService.h
@@ -0,0 +1,62 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES 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_TRANSCODING_SERVICE_H
+#define ANDROID_MEDIA_TRANSCODING_SERVICE_H
+
+#include <aidl/android/media/BnMediaTranscodingService.h>
+#include <binder/IServiceManager.h>
+
+namespace android {
+
+namespace media {
+
+using Status = ::ndk::ScopedAStatus;
+using ::aidl::android::media::BnMediaTranscodingService;
+using ::aidl::android::media::ITranscodingServiceClient;
+using ::aidl::android::media::TranscodingJob;
+using ::aidl::android::media::TranscodingRequest;
+
+class MediaTranscodingService : public BnMediaTranscodingService {
+public:
+    MediaTranscodingService();
+    virtual ~MediaTranscodingService();
+
+    static void instantiate();
+
+    static const char* getServiceName() { return "media.transcoding"; }
+
+    Status registerClient(const std::shared_ptr<ITranscodingServiceClient>& in_client,
+                          int32_t* _aidl_return) override;
+
+    Status unregisterClient(int32_t clientId, bool* _aidl_return) override;
+
+    Status submitRequest(int32_t in_clientId, const TranscodingRequest& in_request,
+                         TranscodingJob* out_job, int32_t* _aidl_return) override;
+
+    Status cancelJob(int32_t in_clientId, int32_t in_jobId, bool* _aidl_return) override;
+
+    Status getJobWithId(int32_t in_jobId, TranscodingJob* out_job, bool* _aidl_return) override;
+
+    virtual inline binder_status_t dump(int /*fd*/, const char** /*args*/, uint32_t /*numArgs*/);
+
+private:
+};
+
+}  // namespace media
+}  // namespace android
+
+#endif  // ANDROID_MEDIA_TRANSCODING_SERVICE_H
diff --git a/services/mediatranscoding/NOTICE b/services/mediatranscoding/NOTICE
new file mode 100644
index 0000000..9f46052
--- /dev/null
+++ b/services/mediatranscoding/NOTICE
@@ -0,0 +1,190 @@
+
+   Copyright (c) 2005-2019, The Android Open Source Project
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
+      or by an individual or Legal Entity authorized to submit on behalf of
+      the copyright owner. For the purposes of this definition, "submitted"
+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
+      excluding communication that is conspicuously marked or otherwise
+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      copyright license to reproduce, prepare Derivative Works of,
+      publicly display, publicly perform, sublicense, and distribute the
+      Work and such Derivative Works in Source or Object form.
+
+   3. Grant of Patent License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      (except as stated in this section) patent license to make, have made,
+      use, offer to sell, sell, import, and otherwise transfer the Work,
+      where such license applies only to those patent claims licensable
+      by such Contributor that are necessarily infringed by their
+      Contribution(s) alone or by combination of their Contribution(s)
+      with the Work to which such Contribution(s) was submitted. If You
+      institute patent litigation against any entity (including a
+      cross-claim or counterclaim in a lawsuit) alleging that the Work
+      or a Contribution incorporated within the Work constitutes direct
+      or contributory patent infringement, then any patent licenses
+      granted to You under this License for that Work shall terminate
+      as of the date such litigation is filed.
+
+   4. Redistribution. You may reproduce and distribute copies of the
+      Work or Derivative Works thereof in any medium, with or without
+      modifications, and in Source or Object form, provided that You
+      meet the following conditions:
+
+      (a) You must give any other recipients of the Work or
+          Derivative Works a copy of this License; and
+
+      (b) You must cause any modified files to carry prominent notices
+          stating that You changed the files; and
+
+      (c) You must retain, in the Source form of any Derivative Works
+          that You distribute, all copyright, patent, trademark, and
+          attribution notices from the Source form of the Work,
+          excluding those notices that do not pertain to any part of
+          the Derivative Works; and
+
+      (d) If the Work includes a "NOTICE" text file as part of its
+          distribution, then any Derivative Works that You distribute must
+          include a readable copy of the attribution notices contained
+          within such NOTICE file, excluding those notices that do not
+          pertain to any part of the Derivative Works, in at least one
+          of the following places: within a NOTICE text file distributed
+          as part of the Derivative Works; within the Source form or
+          documentation, if provided along with the Derivative Works; or,
+          within a display generated by the Derivative Works, if and
+          wherever such third-party notices normally appear. The contents
+          of the NOTICE file are for informational purposes only and
+          do not modify the License. You may add Your own attribution
+          notices within Derivative Works that You distribute, alongside
+          or as an addendum to the NOTICE text from the Work, provided
+          that such additional attribution notices cannot be construed
+          as modifying the License.
+
+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
+      for any such Derivative Works as a whole, provided Your use,
+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+      implied, including, without limitation, any warranties or conditions
+      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
+      risks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
+      result of this License or out of the use or inability to use the
+      Work (including but not limited to damages for loss of goodwill,
+      work stoppage, computer failure or malfunction, or any and all
+      other commercial damages or losses), even if such Contributor
+      has been advised of the possibility of such damages.
+
+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may choose to offer,
+      and charge a fee for, acceptance of support, warranty, indemnity,
+      or other liability obligations and/or rights consistent with this
+      License. However, in accepting such obligations, You may act only
+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+
diff --git a/services/mediatranscoding/OWNERS b/services/mediatranscoding/OWNERS
new file mode 100644
index 0000000..825c586
--- /dev/null
+++ b/services/mediatranscoding/OWNERS
@@ -0,0 +1,4 @@
+akersten@google.com
+hkuang@google.com
+lnilsson@google.com
+
diff --git a/services/mediatranscoding/main_mediatranscodingservice.cpp b/services/mediatranscoding/main_mediatranscodingservice.cpp
new file mode 100644
index 0000000..1978eb4
--- /dev/null
+++ b/services/mediatranscoding/main_mediatranscodingservice.cpp
@@ -0,0 +1,36 @@
+/*
+ * Copyright (C) 2019 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT 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 <android-base/logging.h>
+#include <binder/IPCThreadState.h>
+#include <binder/ProcessState.h>
+
+#include "MediaTranscodingService.h"
+
+using namespace android;
+
+int main(int argc __unused, char** argv) {
+    LOG(INFO) << "media transcoding service starting";
+
+    // TODO(hkuang): Start the service with libbinder_ndk.
+    strcpy(argv[0], "media.transcoding");
+    sp<ProcessState> proc(ProcessState::self());
+    sp<IServiceManager> sm = defaultServiceManager();
+    android::media::MediaTranscodingService::instantiate();
+
+    ProcessState::self()->startThreadPool();
+    IPCThreadState::self()->joinThreadPool();
+}
diff --git a/services/mediatranscoding/mediatranscoding.rc b/services/mediatranscoding/mediatranscoding.rc
new file mode 100644
index 0000000..2dc547f
--- /dev/null
+++ b/services/mediatranscoding/mediatranscoding.rc
@@ -0,0 +1,6 @@
+service media.transcoding /system/bin/mediatranscoding
+    class main
+    user media
+    group media
+    ioprio rt 4
+    writepid /dev/cpuset/foreground/tasks /dev/stune/foreground/tasks
diff --git a/services/minijail/Android.bp b/services/minijail/Android.bp
index 07a94cc..0713a87 100644
--- a/services/minijail/Android.bp
+++ b/services/minijail/Android.bp
@@ -17,10 +17,14 @@
 cc_library_shared {
     name: "libavservices_minijail",
     defaults: ["libavservices_minijail_defaults"],
+    vendor_available: true,
     export_include_dirs: ["."],
 }
 
-// Small library for media.extractor and media.codec sandboxing.
+// By adding "vendor_available: true" to "libavservices_minijail", we don't
+// need to have "libavservices_minijail_vendor" any longer.
+// "libavservices_minijail_vendor" will be removed, once we replace it with
+// "libavservices_minijail" in all vendor modules. (b/146313710)
 cc_library_shared {
     name: "libavservices_minijail_vendor",
     vendor: true,
diff --git a/services/oboeservice/AAudioClientTracker.cpp b/services/oboeservice/AAudioClientTracker.cpp
index 8572561..6e14434 100644
--- a/services/oboeservice/AAudioClientTracker.cpp
+++ b/services/oboeservice/AAudioClientTracker.cpp
@@ -75,10 +75,10 @@
 
     std::lock_guard<std::mutex> lock(mLock);
     if (mNotificationClients.count(pid) == 0) {
-        sp<NotificationClient> notificationClient = new NotificationClient(pid);
+        sp<IBinder> binder = IInterface::asBinder(client);
+        sp<NotificationClient> notificationClient = new NotificationClient(pid, binder);
         mNotificationClients[pid] = notificationClient;
 
-        sp<IBinder> binder = IInterface::asBinder(client);
         status_t status = binder->linkToDeath(notificationClient);
         ALOGW_IF(status != NO_ERROR, "registerClient() linkToDeath = %d\n", status);
         return AAudioConvert_androidToAAudioResult(status);
@@ -113,7 +113,7 @@
     if (notificationClient == 0) {
         // This will get called the first time the audio server registers an internal stream.
         ALOGV("registerClientStream(%d,) unrecognized pid\n", pid);
-        notificationClient = new NotificationClient(pid);
+        notificationClient = new NotificationClient(pid, nullptr);
         mNotificationClients[pid] = notificationClient;
     }
     notificationClient->registerClientStream(serviceStream);
@@ -136,8 +136,8 @@
     return AAUDIO_OK;
 }
 
-AAudioClientTracker::NotificationClient::NotificationClient(pid_t pid)
-        : mProcessId(pid) {
+AAudioClientTracker::NotificationClient::NotificationClient(pid_t pid, const sp<IBinder>& binder)
+        : mProcessId(pid), mBinder(binder) {
 }
 
 AAudioClientTracker::NotificationClient::~NotificationClient() {
diff --git a/services/oboeservice/AAudioClientTracker.h b/services/oboeservice/AAudioClientTracker.h
index accf1a7..00ff467 100644
--- a/services/oboeservice/AAudioClientTracker.h
+++ b/services/oboeservice/AAudioClientTracker.h
@@ -73,7 +73,7 @@
      */
     class NotificationClient : public IBinder::DeathRecipient {
     public:
-        NotificationClient(pid_t pid);
+        NotificationClient(pid_t pid, const android::sp<IBinder>& binder);
         virtual ~NotificationClient();
 
         int32_t getStreamCount();
@@ -91,6 +91,8 @@
         mutable std::mutex                              mLock;
         const pid_t                                     mProcessId;
         std::set<android::sp<AAudioServiceStreamBase>>  mStreams;
+        // hold onto binder to receive death notifications
+        android::sp<IBinder>                            mBinder;
     };
 
     mutable std::mutex                               mLock;
diff --git a/services/oboeservice/AAudioServiceEndpoint.cpp b/services/oboeservice/AAudioServiceEndpoint.cpp
index 553754e..2753f1f 100644
--- a/services/oboeservice/AAudioServiceEndpoint.cpp
+++ b/services/oboeservice/AAudioServiceEndpoint.cpp
@@ -62,6 +62,7 @@
     result << "    InputPreset:          " << getInputPreset() << "\n";
     result << "    Reference Count:      " << mOpenCount << "\n";
     result << "    Session Id:           " << getSessionId() << "\n";
+    result << "    Privacy Sensitive:    " << isPrivacySensitive() << "\n";
     result << "    Connected:            " << mConnected.load() << "\n";
     result << "    Registered Streams:" << "\n";
     result << AAudioServiceStreamShared::dumpHeader() << "\n";
diff --git a/services/oboeservice/AAudioServiceEndpointMMAP.cpp b/services/oboeservice/AAudioServiceEndpointMMAP.cpp
index b05baa4..5bdb8eb 100644
--- a/services/oboeservice/AAudioServiceEndpointMMAP.cpp
+++ b/services/oboeservice/AAudioServiceEndpointMMAP.cpp
@@ -90,9 +90,14 @@
     const audio_source_t source = (direction == AAUDIO_DIRECTION_INPUT)
             ? AAudioConvert_inputPresetToAudioSource(getInputPreset())
             : AUDIO_SOURCE_DEFAULT;
-    const audio_flags_mask_t flags = AUDIO_FLAG_LOW_LATENCY |
-            AAudioConvert_allowCapturePolicyToAudioFlagsMask(getAllowedCapturePolicy());
-
+    audio_flags_mask_t flags;
+    if (direction == AAUDIO_DIRECTION_OUTPUT) {
+        flags = AUDIO_FLAG_LOW_LATENCY
+            | AAudioConvert_allowCapturePolicyToAudioFlagsMask(getAllowedCapturePolicy());
+    } else {
+        flags = AUDIO_FLAG_LOW_LATENCY
+            | AAudioConvert_privacySensitiveToAudioFlagsMask(isPrivacySensitive());
+    }
     const audio_attributes_t attributes = {
             .content_type = contentType,
             .usage = usage,
diff --git a/services/soundtrigger/Android.bp b/services/soundtrigger/Android.bp
deleted file mode 100644
index 1bbd591..0000000
--- a/services/soundtrigger/Android.bp
+++ /dev/null
@@ -1,53 +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.
-
-cc_library_shared {
-    name: "libsoundtriggerservice",
-
-    srcs: [
-        "SoundTriggerHwService.cpp",
-        "SoundTriggerHalHidl.cpp",
-    ],
-
-    shared_libs: [
-        "liblog",
-        "libutils",
-        "libbinder",
-        "libcutils",
-        "libhardware",
-        "libsoundtrigger",
-        "libaudioclient",
-        "libaudioutils",
-        "libmediautils",
-
-        "libhidlbase",
-        "libhidlmemory",
-        "libbase",
-        "libaudiohal",
-        "libaudiohal_deathhandler",
-        "android.hardware.soundtrigger@2.0",
-        "android.hardware.soundtrigger@2.1",
-        "android.hardware.soundtrigger@2.2",
-        "android.hardware.audio.common@2.0",
-        "android.hidl.allocator@1.0",
-        "android.hidl.memory@1.0",
-    ],
-
-    include_dirs: ["frameworks/av/services/audioflinger"],
-
-    cflags: [
-        "-Wall",
-        "-Werror",
-    ],
-}
diff --git a/services/soundtrigger/OWNERS b/services/soundtrigger/OWNERS
deleted file mode 100644
index e83f6b9..0000000
--- a/services/soundtrigger/OWNERS
+++ /dev/null
@@ -1,2 +0,0 @@
-elaurent@google.com
-thorntonc@google.com
diff --git a/services/soundtrigger/SoundTriggerHalHidl.cpp b/services/soundtrigger/SoundTriggerHalHidl.cpp
deleted file mode 100644
index 68d54c7..0000000
--- a/services/soundtrigger/SoundTriggerHalHidl.cpp
+++ /dev/null
@@ -1,839 +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.
- */
-
-#define LOG_TAG "SoundTriggerHalHidl"
-//#define LOG_NDEBUG 0
-
-#include <android/hidl/allocator/1.0/IAllocator.h>
-#include <media/audiohal/hidl/HalDeathHandler.h>
-#include <utils/Log.h>
-#include "SoundTriggerHalHidl.h"
-#include <hidlmemory/mapping.h>
-#include <hwbinder/IPCThreadState.h>
-#include <hwbinder/ProcessState.h>
-
-namespace android {
-
-using ::android::hardware::ProcessState;
-using ::android::hardware::Return;
-using ::android::hardware::Status;
-using ::android::hardware::Void;
-using ::android::hardware::audio::common::V2_0::AudioDevice;
-using ::android::hardware::hidl_memory;
-using ::android::hidl::allocator::V1_0::IAllocator;
-using ::android::hidl::memory::V1_0::IMemory;
-
-namespace {
-
-// Backs up by the vector with the contents of shared memory.
-// It is assumed that the passed hidl_vector is empty, so it's
-// not cleared if the memory is a null object.
-// The caller needs to keep the returned sp<IMemory> as long as
-// the data is needed.
-std::pair<bool, sp<IMemory>> memoryAsVector(const hidl_memory& m, hidl_vec<uint8_t>* vec) {
-    sp<IMemory> memory;
-    if (m.size() == 0) {
-        return std::make_pair(true, memory);
-    }
-    memory = mapMemory(m);
-    if (memory != nullptr) {
-        memory->read();
-        vec->setToExternal(static_cast<uint8_t*>(static_cast<void*>(memory->getPointer())),
-                memory->getSize());
-        return std::make_pair(true, memory);
-    }
-    ALOGE("%s: Could not map HIDL memory to IMemory", __func__);
-    return std::make_pair(false, memory);
-}
-
-// Moves the data from the vector into allocated shared memory,
-// emptying the vector.
-// It is assumed that the passed hidl_memory is a null object, so it's
-// not reset if the vector is empty.
-// The caller needs to keep the returned sp<IMemory> as long as
-// the data is needed.
-std::pair<bool, sp<IMemory>> moveVectorToMemory(hidl_vec<uint8_t>* v, hidl_memory* mem) {
-    sp<IMemory> memory;
-    if (v->size() == 0) {
-        return std::make_pair(true, memory);
-    }
-    sp<IAllocator> ashmem = IAllocator::getService("ashmem");
-    if (ashmem == 0) {
-        ALOGE("Failed to retrieve ashmem allocator service");
-        return std::make_pair(false, memory);
-    }
-    bool success = false;
-    Return<void> r = ashmem->allocate(v->size(), [&](bool s, const hidl_memory& m) {
-        success = s;
-        if (success) *mem = m;
-    });
-    if (r.isOk() && success) {
-        memory = hardware::mapMemory(*mem);
-        if (memory != 0) {
-            memory->update();
-            memcpy(memory->getPointer(), v->data(), v->size());
-            memory->commit();
-            v->resize(0);
-            return std::make_pair(true, memory);
-        } else {
-            ALOGE("Failed to map allocated ashmem");
-        }
-    } else {
-        ALOGE("Failed to allocate %llu bytes from ashmem", (unsigned long long)v->size());
-    }
-    return std::make_pair(false, memory);
-}
-
-}  // namespace
-
-/* 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());
-
-    Return<void> hidlReturn;
-    int ret;
-    SoundModelHandle halHandle;
-    sp<V2_1_ISoundTriggerHw> soundtrigger_2_1 = toService2_1(soundtrigger);
-    sp<V2_2_ISoundTriggerHw> soundtrigger_2_2 = toService2_2(soundtrigger);
-    if (sound_model->type == SOUND_MODEL_TYPE_KEYPHRASE) {
-        if (soundtrigger_2_2) {
-            V2_2_ISoundTriggerHw::PhraseSoundModel halSoundModel;
-            auto result = convertPhraseSoundModelToHal(&halSoundModel, sound_model);
-            if (result.first) {
-                AutoMutex lock(mHalLock);
-                hidlReturn = soundtrigger_2_2->loadPhraseSoundModel_2_1(
-                        halSoundModel,
-                        this, modelId, [&](int32_t retval, auto res) {
-                            ret = retval;
-                            halHandle = res;
-                        });
-            } else {
-                return NO_MEMORY;
-            }
-        } else if (soundtrigger_2_1) {
-            V2_1_ISoundTriggerHw::PhraseSoundModel halSoundModel;
-            auto result = convertPhraseSoundModelToHal(&halSoundModel, sound_model);
-            if (result.first) {
-                AutoMutex lock(mHalLock);
-                hidlReturn = soundtrigger_2_1->loadPhraseSoundModel_2_1(
-                        halSoundModel,
-                        this, modelId, [&](int32_t retval, auto res) {
-                            ret = retval;
-                            halHandle = res;
-                        });
-            } else {
-                return NO_MEMORY;
-            }
-        } else {
-            ISoundTriggerHw::PhraseSoundModel halSoundModel;
-            convertPhraseSoundModelToHal(&halSoundModel, sound_model);
-            AutoMutex lock(mHalLock);
-            hidlReturn = soundtrigger->loadPhraseSoundModel(
-                    halSoundModel,
-                    this, modelId, [&](int32_t retval, auto res) {
-                        ret = retval;
-                        halHandle = res;
-                    });
-        }
-    } else {
-        if (soundtrigger_2_2) {
-            V2_2_ISoundTriggerHw::SoundModel halSoundModel;
-            auto result = convertSoundModelToHal(&halSoundModel, sound_model);
-            if (result.first) {
-                AutoMutex lock(mHalLock);
-                hidlReturn = soundtrigger_2_2->loadSoundModel_2_1(halSoundModel,
-                        this, modelId, [&](int32_t retval, auto res) {
-                            ret = retval;
-                            halHandle = res;
-                        });
-            } else {
-                return NO_MEMORY;
-            }
-        } else if (soundtrigger_2_1) {
-            V2_1_ISoundTriggerHw::SoundModel halSoundModel;
-            auto result = convertSoundModelToHal(&halSoundModel, sound_model);
-            if (result.first) {
-                AutoMutex lock(mHalLock);
-                hidlReturn = soundtrigger_2_1->loadSoundModel_2_1(halSoundModel,
-                        this, modelId, [&](int32_t retval, auto res) {
-                            ret = retval;
-                            halHandle = res;
-                        });
-            } else {
-                return NO_MEMORY;
-            }
-        } else {
-            ISoundTriggerHw::SoundModel halSoundModel;
-            convertSoundModelToHal(&halSoundModel, sound_model);
-            AutoMutex lock(mHalLock);
-            hidlReturn = soundtrigger->loadSoundModel(halSoundModel,
-                    this, modelId, [&](int32_t retval, auto res) {
-                        ret = retval;
-                        halHandle = res;
-                    });
-        }
-    }
-
-    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;
-
-    sp<V2_1_ISoundTriggerHw> soundtrigger_2_1 = toService2_1(soundtrigger);
-    sp<V2_2_ISoundTriggerHw> soundtrigger_2_2 = toService2_2(soundtrigger);
-    Return<int32_t> hidlReturn(0);
-
-    if (soundtrigger_2_2) {
-        V2_2_ISoundTriggerHw::RecognitionConfig halConfig;
-        auto result = convertRecognitionConfigToHal(&halConfig, config);
-        if (result.first) {
-            AutoMutex lock(mHalLock);
-            hidlReturn = soundtrigger_2_2->startRecognition_2_1(
-                    model->mHalHandle, halConfig, this, handle);
-        } else {
-            return NO_MEMORY;
-        }
-    } else if (soundtrigger_2_1) {
-        V2_1_ISoundTriggerHw::RecognitionConfig halConfig;
-        auto result = convertRecognitionConfigToHal(&halConfig, config);
-        if (result.first) {
-            AutoMutex lock(mHalLock);
-            hidlReturn = soundtrigger_2_1->startRecognition_2_1(
-                    model->mHalHandle, halConfig, this, handle);
-        } else {
-            return NO_MEMORY;
-        }
-    } else {
-        ISoundTriggerHw::RecognitionConfig halConfig;
-        convertRecognitionConfigToHal(&halConfig, config);
-        {
-            AutoMutex lock(mHalLock);
-            hidlReturn = soundtrigger->startRecognition(model->mHalHandle, halConfig, this, handle);
-        }
-    }
-
-    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;
-}
-
-int SoundTriggerHalHidl::getModelState(sound_model_handle_t handle)
-{
-    sp<ISoundTriggerHw> soundtrigger = getService();
-    if (soundtrigger == 0) {
-        return -ENODEV;
-    }
-
-    sp<V2_2_ISoundTriggerHw> soundtrigger_2_2 = toService2_2(soundtrigger);
-    if (soundtrigger_2_2 == 0) {
-        ALOGE("getModelState not supported");
-        return -ENODEV;
-    }
-
-    sp<SoundModel> model = getModel(handle);
-    if (model == 0) {
-        ALOGE("getModelState model not found for handle %u", handle);
-        return -EINVAL;
-    }
-
-    int ret = NO_ERROR;
-    Return<int32_t> hidlReturn(0);
-    {
-        AutoMutex lock(mHalLock);
-        hidlReturn = soundtrigger_2_2->getModelState(model->mHalHandle);
-    }
-    if (!hidlReturn.isOk()) {
-        ALOGE("getModelState error %s", hidlReturn.description().c_str());
-        ret = FAILED_TRANSACTION;
-    }
-    return ret;
-}
-
-SoundTriggerHalHidl::SoundTriggerHalHidl(const char *moduleName)
-    : mModuleName(moduleName), mNextUniqueId(1)
-{
-    LOG_ALWAYS_FATAL_IF(strcmp(mModuleName, "primary") != 0,
-            "Treble soundtrigger only supports primary module");
-}
-
-SoundTriggerHalHidl::~SoundTriggerHalHidl()
-{
-}
-
-sp<ISoundTriggerHw> SoundTriggerHalHidl::getService()
-{
-    AutoMutex lock(mLock);
-    if (mISoundTrigger == 0) {
-        if (mModuleName == NULL) {
-            mModuleName = "primary";
-        }
-        mISoundTrigger = ISoundTriggerHw::getService();
-        if (mISoundTrigger != 0) {
-            mISoundTrigger->linkToDeath(HalDeathHandler::getInstance(), 0 /*cookie*/);
-        }
-    }
-    return mISoundTrigger;
-}
-
-sp<V2_1_ISoundTriggerHw> SoundTriggerHalHidl::toService2_1(const sp<ISoundTriggerHw>& s)
-{
-    auto castResult_2_1 = V2_1_ISoundTriggerHw::castFrom(s);
-    return castResult_2_1.isOk() ? static_cast<sp<V2_1_ISoundTriggerHw>>(castResult_2_1) : nullptr;
-}
-
-sp<V2_2_ISoundTriggerHw> SoundTriggerHalHidl::toService2_2(const sp<ISoundTriggerHw>& s)
-{
-    auto castResult_2_2 = V2_2_ISoundTriggerHw::castFrom(s);
-    return castResult_2_2.isOk() ? static_cast<sp<V2_2_ISoundTriggerHw>>(castResult_2_2) : nullptr;
-}
-
-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;
-}
-
-
-void SoundTriggerHalHidl::convertTriggerPhrasesToHal(
-        hidl_vec<ISoundTriggerHw::Phrase> *halTriggerPhrases,
-        struct sound_trigger_phrase_sound_model *keyPhraseModel)
-{
-    halTriggerPhrases->resize(keyPhraseModel->num_phrases);
-    for (unsigned int i = 0; i < keyPhraseModel->num_phrases; i++) {
-        convertTriggerPhraseToHal(&(*halTriggerPhrases)[i], &keyPhraseModel->phrases[i]);
-    }
-}
-
-void SoundTriggerHalHidl::convertSoundModelToHal(ISoundTriggerHw::SoundModel *halModel,
-        const struct sound_trigger_sound_model *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);
-}
-
-std::pair<bool, sp<IMemory>> SoundTriggerHalHidl::convertSoundModelToHal(
-        V2_1_ISoundTriggerHw::SoundModel *halModel,
-        const struct sound_trigger_sound_model *soundModel)
-{
-    convertSoundModelToHal(&halModel->header, soundModel);
-    return moveVectorToMemory(&halModel->header.data, &halModel->data);
-}
-
-void SoundTriggerHalHidl::convertPhraseSoundModelToHal(
-        ISoundTriggerHw::PhraseSoundModel *halKeyPhraseModel,
-        const struct sound_trigger_sound_model *soundModel)
-{
-    struct sound_trigger_phrase_sound_model *keyPhraseModel =
-            (struct sound_trigger_phrase_sound_model *)soundModel;
-    convertTriggerPhrasesToHal(&halKeyPhraseModel->phrases, keyPhraseModel);
-    convertSoundModelToHal(&halKeyPhraseModel->common, soundModel);
-}
-
-std::pair<bool, sp<IMemory>> SoundTriggerHalHidl::convertPhraseSoundModelToHal(
-        V2_1_ISoundTriggerHw::PhraseSoundModel *halKeyPhraseModel,
-        const struct sound_trigger_sound_model *soundModel)
-{
-    struct sound_trigger_phrase_sound_model *keyPhraseModel =
-            (struct sound_trigger_phrase_sound_model *)soundModel;
-    convertTriggerPhrasesToHal(&halKeyPhraseModel->phrases, keyPhraseModel);
-    return convertSoundModelToHal(&halKeyPhraseModel->common, soundModel);
-}
-
-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;
-    halExtra->levels.resize(extra->num_levels);
-    for (unsigned int i = 0; i < extra->num_levels; i++) {
-        halExtra->levels[i].userId = extra->levels[i].user_id;
-        halExtra->levels[i].levelPercent = extra->levels[i].level;
-    }
-}
-
-void SoundTriggerHalHidl::convertRecognitionConfigToHal(
-        ISoundTriggerHw::RecognitionConfig *halConfig,
-        const struct sound_trigger_recognition_config *config)
-{
-    halConfig->captureHandle = config->capture_handle;
-    halConfig->captureDevice = (AudioDevice)config->capture_device;
-    halConfig->captureRequested = (uint32_t)config->capture_requested;
-
-    halConfig->phrases.resize(config->num_phrases);
-    for (unsigned int i = 0; i < config->num_phrases; i++) {
-        convertPhraseRecognitionExtraToHal(&halConfig->phrases[i],
-                                  &config->phrases[i]);
-    }
-
-    halConfig->data.setToExternal((uint8_t *)config + config->data_offset, config->data_size);
-}
-
-std::pair<bool, sp<IMemory>> SoundTriggerHalHidl::convertRecognitionConfigToHal(
-        V2_1_ISoundTriggerHw::RecognitionConfig *halConfig,
-        const struct sound_trigger_recognition_config *config)
-{
-    convertRecognitionConfigToHal(&halConfig->header, config);
-    return moveVectorToMemory(&halConfig->header.data, &halConfig->data);
-}
-
-
-// ISoundTriggerHwCallback
-::android::hardware::Return<void> SoundTriggerHalHidl::recognitionCallback(
-        const V2_0_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 V2_0_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_phrase_recognition_event *event =
-            convertPhraseRecognitionEventFromHal(&halEvent);
-    if (event == NULL) {
-        return Return<void>();
-    }
-    event->common.model = model->mHandle;
-    model->mRecognitionCallback(&event->common, model->mRecognitionCookie);
-
-    free(event);
-
-    return Return<void>();
-}
-
-::android::hardware::Return<void> SoundTriggerHalHidl::soundModelCallback(
-        const V2_0_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>();
-}
-
-::android::hardware::Return<void> SoundTriggerHalHidl::recognitionCallback_2_1(
-        const ISoundTriggerHwCallback::RecognitionEvent& event, CallbackCookie cookie) {
-    // The data vector in the 'header' part of V2.1 structure is empty, thus copying is cheap.
-    V2_0_ISoundTriggerHwCallback::RecognitionEvent event_2_0 = event.header;
-    auto result = memoryAsVector(event.data, &event_2_0.data);
-    return result.first ? recognitionCallback(event_2_0, cookie) : Void();
-}
-
-::android::hardware::Return<void> SoundTriggerHalHidl::phraseRecognitionCallback_2_1(
-        const ISoundTriggerHwCallback::PhraseRecognitionEvent& event, int32_t cookie) {
-    V2_0_ISoundTriggerHwCallback::PhraseRecognitionEvent event_2_0;
-    // The data vector in the 'header' part of V2.1 structure is empty, thus copying is cheap.
-    event_2_0.common = event.common.header;
-    event_2_0.phraseExtras.setToExternal(
-            const_cast<PhraseRecognitionExtra*>(event.phraseExtras.data()),
-            event.phraseExtras.size());
-    auto result = memoryAsVector(event.common.data, &event_2_0.common.data);
-    return result.first ? phraseRecognitionCallback(event_2_0, cookie) : Void();
-}
-
-::android::hardware::Return<void> SoundTriggerHalHidl::soundModelCallback_2_1(
-        const ISoundTriggerHwCallback::ModelEvent& event, CallbackCookie cookie) {
-    // The data vector in the 'header' part of V2.1 structure is empty, thus copying is cheap.
-    V2_0_ISoundTriggerHwCallback::ModelEvent event_2_0 = event.header;
-    auto result = memoryAsVector(event.data, &event_2_0.data);
-    return result.first ? soundModelCallback(event_2_0, cookie) : Void();
-}
-
-
-struct sound_trigger_model_event *SoundTriggerHalHidl::convertSoundModelEventFromHal(
-                                              const V2_0_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_phrase_recognition_event* SoundTriggerHalHidl::convertPhraseRecognitionEventFromHal(
-        const V2_0_ISoundTriggerHwCallback::PhraseRecognitionEvent *halPhraseEvent)
-{
-    if (halPhraseEvent->common.type != SoundModelType::KEYPHRASE) {
-        ALOGE("Received non-keyphrase event type as PhraseRecognitionEvent");
-        return NULL;
-    }
-    struct sound_trigger_phrase_recognition_event *phraseEvent =
-            (struct sound_trigger_phrase_recognition_event *)malloc(
-                    sizeof(struct sound_trigger_phrase_recognition_event) +
-                    halPhraseEvent->common.data.size());
-    if (phraseEvent == NULL) {
-        return NULL;
-    }
-    phraseEvent->common.data_offset = sizeof(sound_trigger_phrase_recognition_event);
-
-    for (unsigned int i = 0; i < halPhraseEvent->phraseExtras.size(); i++) {
-        convertPhraseRecognitionExtraFromHal(&phraseEvent->phrase_extras[i],
-                                             &halPhraseEvent->phraseExtras[i]);
-    }
-    phraseEvent->num_phrases = halPhraseEvent->phraseExtras.size();
-
-    fillRecognitionEventFromHal(&phraseEvent->common, &halPhraseEvent->common);
-    return phraseEvent;
-}
-
-struct sound_trigger_recognition_event *SoundTriggerHalHidl::convertRecognitionEventFromHal(
-        const V2_0_ISoundTriggerHwCallback::RecognitionEvent *halEvent)
-{
-    if (halEvent->type == SoundModelType::KEYPHRASE) {
-        ALOGE("Received keyphrase event type as RecognitionEvent");
-        return NULL;
-    }
-    struct sound_trigger_recognition_event *event;
-    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);
-
-    fillRecognitionEventFromHal(event, halEvent);
-    return event;
-}
-
-void SoundTriggerHalHidl::fillRecognitionEventFromHal(
-        struct sound_trigger_recognition_event *event,
-        const V2_0_ISoundTriggerHwCallback::RecognitionEvent *halEvent)
-{
-    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());
-}
-
-} // namespace android
diff --git a/services/soundtrigger/SoundTriggerHalHidl.h b/services/soundtrigger/SoundTriggerHalHidl.h
deleted file mode 100644
index fb9e39e..0000000
--- a/services/soundtrigger/SoundTriggerHalHidl.h
+++ /dev/null
@@ -1,214 +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 ANDROID_HARDWARE_SOUNDTRIGGER_HAL_HIDL_H
-#define ANDROID_HARDWARE_SOUNDTRIGGER_HAL_HIDL_H
-
-#include <utility>
-
-#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/2.1/ISoundTriggerHw.h>
-#include <android/hardware/soundtrigger/2.2/ISoundTriggerHw.h>
-#include <android/hardware/soundtrigger/2.0/ISoundTriggerHwCallback.h>
-#include <android/hardware/soundtrigger/2.1/ISoundTriggerHwCallback.h>
-
-namespace android {
-
-using ::android::hardware::audio::common::V2_0::Uuid;
-using ::android::hardware::hidl_vec;
-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 V2_0_ISoundTriggerHwCallback =
-        ::android::hardware::soundtrigger::V2_0::ISoundTriggerHwCallback;
-using V2_1_ISoundTriggerHw =
-        ::android::hardware::soundtrigger::V2_1::ISoundTriggerHw;
-using V2_1_ISoundTriggerHwCallback =
-        ::android::hardware::soundtrigger::V2_1::ISoundTriggerHwCallback;
-using ::android::hidl::memory::V1_0::IMemory;
-using V2_2_ISoundTriggerHw =
-        ::android::hardware::soundtrigger::V2_2::ISoundTriggerHw;
-
-class SoundTriggerHalHidl : public SoundTriggerHalInterface,
-                            public virtual V2_1_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();
-
-        /* Get the current state of a given model.
-         * Returns 0 or an error code. If successful the state will be returned asynchronously
-         * via a recognition event in the callback method that was registered in the
-         * startRecognition() method.
-         * Only supported for device api versions SOUND_TRIGGER_DEVICE_API_VERSION_1_2 or above.
-         */
-        virtual int getModelState(sound_model_handle_t handle);
-
-        // ISoundTriggerHwCallback
-        virtual ::android::hardware::Return<void> recognitionCallback(
-                const V2_0_ISoundTriggerHwCallback::RecognitionEvent& event, CallbackCookie cookie);
-        virtual ::android::hardware::Return<void> phraseRecognitionCallback(
-                const V2_0_ISoundTriggerHwCallback::PhraseRecognitionEvent& event, int32_t cookie);
-        virtual ::android::hardware::Return<void> soundModelCallback(
-                const V2_0_ISoundTriggerHwCallback::ModelEvent& event, CallbackCookie cookie);
-        virtual ::android::hardware::Return<void> recognitionCallback_2_1(
-                const RecognitionEvent& event, CallbackCookie cookie);
-        virtual ::android::hardware::Return<void> phraseRecognitionCallback_2_1(
-                const PhraseRecognitionEvent& event, int32_t cookie);
-        virtual ::android::hardware::Return<void> soundModelCallback_2_1(
-                const 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);
-        void convertTriggerPhrasesToHal(
-                hidl_vec<ISoundTriggerHw::Phrase> *halTriggerPhrases,
-                struct sound_trigger_phrase_sound_model *keyPhraseModel);
-        void convertSoundModelToHal(ISoundTriggerHw::SoundModel *halModel,
-                const struct sound_trigger_sound_model *soundModel);
-        std::pair<bool, sp<IMemory>> convertSoundModelToHal(
-                V2_1_ISoundTriggerHw::SoundModel *halModel,
-                const struct sound_trigger_sound_model *soundModel)
-                __attribute__((warn_unused_result));
-        void convertPhraseSoundModelToHal(ISoundTriggerHw::PhraseSoundModel *halKeyPhraseModel,
-                const struct sound_trigger_sound_model *soundModel);
-        std::pair<bool, sp<IMemory>> convertPhraseSoundModelToHal(
-                V2_1_ISoundTriggerHw::PhraseSoundModel *halKeyPhraseModel,
-                const struct sound_trigger_sound_model *soundModel)
-                __attribute__((warn_unused_result));
-
-        void convertPhraseRecognitionExtraToHal(
-                PhraseRecognitionExtra *halExtra,
-                const struct sound_trigger_phrase_recognition_extra *extra);
-        void convertRecognitionConfigToHal(ISoundTriggerHw::RecognitionConfig *halConfig,
-                const struct sound_trigger_recognition_config *config);
-        std::pair<bool, sp<IMemory>> convertRecognitionConfigToHal(
-                V2_1_ISoundTriggerHw::RecognitionConfig *halConfig,
-                const struct sound_trigger_recognition_config *config)
-                __attribute__((warn_unused_result));
-
-        struct sound_trigger_model_event *convertSoundModelEventFromHal(
-                                              const V2_0_ISoundTriggerHwCallback::ModelEvent *halEvent);
-        void convertPhraseRecognitionExtraFromHal(
-                struct sound_trigger_phrase_recognition_extra *extra,
-                const PhraseRecognitionExtra *halExtra);
-        struct sound_trigger_phrase_recognition_event* convertPhraseRecognitionEventFromHal(
-                const V2_0_ISoundTriggerHwCallback::PhraseRecognitionEvent *halPhraseEvent);
-        struct sound_trigger_recognition_event *convertRecognitionEventFromHal(
-                const V2_0_ISoundTriggerHwCallback::RecognitionEvent *halEvent);
-        void fillRecognitionEventFromHal(
-                struct sound_trigger_recognition_event *event,
-                const V2_0_ISoundTriggerHwCallback::RecognitionEvent *halEvent);
-
-        uint32_t nextUniqueId();
-        sp<ISoundTriggerHw> getService();
-        sp<V2_1_ISoundTriggerHw> toService2_1(const sp<ISoundTriggerHw>& s);
-        sp<V2_2_ISoundTriggerHw> toService2_2(const sp<ISoundTriggerHw>& s);
-        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
deleted file mode 100644
index 0183ece..0000000
--- a/services/soundtrigger/SoundTriggerHalInterface.h
+++ /dev/null
@@ -1,88 +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 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;
-
-        /* Get the current state of a given model.
-         * Returns 0 or an error code. If successful the state will be returned asynchronously
-         * via a recognition event in the callback method that was registered in the
-         * startRecognition() method.
-         * Only supported for device api versions SOUND_TRIGGER_DEVICE_API_VERSION_1_2 or above.
-         */
-        virtual int getModelState(sound_model_handle_t handle) = 0;
-
-protected:
-        SoundTriggerHalInterface() {}
-};
-
-} // namespace android
-
-#endif // ANDROID_HARDWARE_SOUNDTRIGGER_HAL_INTERFACE_H
diff --git a/services/soundtrigger/SoundTriggerHwService.cpp b/services/soundtrigger/SoundTriggerHwService.cpp
deleted file mode 100644
index ccbeb77..0000000
--- a/services/soundtrigger/SoundTriggerHwService.cpp
+++ /dev/null
@@ -1,1158 +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_TAG "SoundTriggerHwService"
-//#define LOG_NDEBUG 0
-
-#include <stdio.h>
-#include <string.h>
-#include <sys/types.h>
-#include <pthread.h>
-
-#include <audio_utils/clock.h>
-#include <system/sound_trigger.h>
-#include <cutils/atomic.h>
-#include <cutils/properties.h>
-#include <hardware/hardware.h>
-#include <media/AudioSystem.h>
-#include <mediautils/ServiceUtilities.h>
-#include <utils/Errors.h>
-#include <utils/Log.h>
-#include <binder/IServiceManager.h>
-#include <binder/MemoryBase.h>
-#include <binder/MemoryHeapBase.h>
-#include <system/sound_trigger.h>
-#include "SoundTriggerHwService.h"
-
-#define HW_MODULE_PREFIX "primary"
-namespace android {
-
-namespace {
-
-// Given an IMemory, returns a copy of its content along with its size.
-// Returns nullptr on failure or if input is nullptr.
-std::pair<std::unique_ptr<uint8_t[]>,
-          size_t> CopyToArray(const sp<IMemory>& mem) {
-    if (mem == nullptr) {
-        return std::make_pair(nullptr, 0);
-    }
-
-    const size_t size = mem->size();
-    if (size == 0) {
-        return std::make_pair(nullptr, 0);
-    }
-
-    std::unique_ptr<uint8_t[]> ar = std::make_unique<uint8_t[]>(size);
-    if (ar == nullptr) {
-        return std::make_pair(nullptr, 0);
-    }
-
-    memcpy(ar.get(), mem->unsecurePointer(), size);
-    return std::make_pair(std::move(ar), size);
-}
-
-}
-
-SoundTriggerHwService::SoundTriggerHwService()
-    : BnSoundTriggerHwService(),
-      mNextUniqueId(1),
-      mMemoryDealer(new MemoryDealer(1024 * 1024, "SoundTriggerHwService")),
-      mCaptureState(false)
-{
-}
-
-void SoundTriggerHwService::onFirstRef()
-{
-    int rc;
-
-    sp<SoundTriggerHalInterface> halInterface =
-            SoundTriggerHalInterface::connectModule(HW_MODULE_PREFIX);
-
-    if (halInterface == 0) {
-        ALOGW("could not connect to HAL");
-        return;
-    }
-    sound_trigger_module_descriptor descriptor;
-    rc = halInterface->getProperties(&descriptor.properties);
-    if (rc != 0) {
-        ALOGE("could not read implementation properties");
-        return;
-    }
-    descriptor.handle =
-            (sound_trigger_module_handle_t)android_atomic_inc(&mNextUniqueId);
-    ALOGI("loaded default module %s, handle %d", descriptor.properties.description,
-                                                 descriptor.handle);
-
-    sp<Module> module = new Module(this, halInterface, descriptor);
-    mModules.add(descriptor.handle, module);
-    mCallbackThread = new CallbackThread(this);
-}
-
-SoundTriggerHwService::~SoundTriggerHwService()
-{
-    if (mCallbackThread != 0) {
-        mCallbackThread->exit();
-    }
-}
-
-status_t SoundTriggerHwService::listModules(const String16& opPackageName,
-                             struct sound_trigger_module_descriptor *modules,
-                             uint32_t *numModules)
-{
-    ALOGV("listModules");
-    if (!captureHotwordAllowed(opPackageName,
-                               IPCThreadState::self()->getCallingPid(),
-                               IPCThreadState::self()->getCallingUid())) {
-        return PERMISSION_DENIED;
-    }
-
-    AutoMutex lock(mServiceLock);
-    if (numModules == NULL || (*numModules != 0 && modules == NULL)) {
-        return BAD_VALUE;
-    }
-    size_t maxModules = *numModules;
-    *numModules = mModules.size();
-    for (size_t i = 0; i < mModules.size() && i < maxModules; i++) {
-        modules[i] = mModules.valueAt(i)->descriptor();
-    }
-    return NO_ERROR;
-}
-
-status_t SoundTriggerHwService::attach(const String16& opPackageName,
-                        const sound_trigger_module_handle_t handle,
-                        const sp<ISoundTriggerClient>& client,
-                        sp<ISoundTrigger>& moduleInterface)
-{
-    ALOGV("attach module %d", handle);
-    if (!captureHotwordAllowed(opPackageName,
-                               IPCThreadState::self()->getCallingPid(),
-                               IPCThreadState::self()->getCallingUid())) {
-        return PERMISSION_DENIED;
-    }
-
-    AutoMutex lock(mServiceLock);
-    moduleInterface.clear();
-    if (client == 0) {
-        return BAD_VALUE;
-    }
-    ssize_t index = mModules.indexOfKey(handle);
-    if (index < 0) {
-        return BAD_VALUE;
-    }
-    sp<Module> module = mModules.valueAt(index);
-
-    sp<ModuleClient> moduleClient = module->addClient(client, opPackageName);
-    if (moduleClient == 0) {
-        return NO_INIT;
-    }
-
-    moduleClient->setCaptureState_l(mCaptureState);
-    moduleInterface = moduleClient;
-
-    return NO_ERROR;
-}
-
-status_t SoundTriggerHwService::setCaptureState(bool active)
-{
-    ALOGV("setCaptureState %d", active);
-    AutoMutex lock(mServiceLock);
-    mCaptureState = active;
-    for (size_t i = 0; i < mModules.size(); i++) {
-        mModules.valueAt(i)->setCaptureState_l(active);
-    }
-    return NO_ERROR;
-}
-
-
-static const int kDumpLockTimeoutNs = 1 * NANOS_PER_SECOND;
-
-static bool dumpTryLock(Mutex& mutex)
-{
-    status_t err = mutex.timedLock(kDumpLockTimeoutNs);
-    return err == NO_ERROR;
-}
-
-status_t SoundTriggerHwService::dump(int fd, const Vector<String16>& args __unused) {
-    String8 result;
-    if (checkCallingPermission(String16("android.permission.DUMP")) == false) {
-        result.appendFormat("Permission Denial: can't dump SoundTriggerHwService");
-        write(fd, result.string(), result.size());
-    } else {
-        bool locked = dumpTryLock(mServiceLock);
-        // failed to lock - SoundTriggerHwService is probably deadlocked
-        if (!locked) {
-            result.append("SoundTriggerHwService may be deadlocked\n");
-            write(fd, result.string(), result.size());
-        }
-
-        if (locked) mServiceLock.unlock();
-    }
-    return NO_ERROR;
-}
-
-status_t SoundTriggerHwService::onTransact(
-    uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) {
-    return BnSoundTriggerHwService::onTransact(code, data, reply, flags);
-}
-
-
-// static
-void SoundTriggerHwService::recognitionCallback(struct sound_trigger_recognition_event *event,
-                                                void *cookie)
-{
-    Module *module = (Module *)cookie;
-    if (module == NULL) {
-        return;
-    }
-    sp<SoundTriggerHwService> service = module->service().promote();
-    if (service == 0) {
-        return;
-    }
-
-    service->sendRecognitionEvent(event, module);
-}
-
-sp<IMemory> SoundTriggerHwService::prepareRecognitionEvent(
-                                                    struct sound_trigger_recognition_event *event)
-{
-    AutoMutex lock(mMemoryDealerLock);
-    sp<IMemory> eventMemory;
-
-    //sanitize event
-    switch (event->type) {
-    case SOUND_MODEL_TYPE_KEYPHRASE:
-        ALOGW_IF(event->data_size != 0 && event->data_offset !=
-                    sizeof(struct sound_trigger_phrase_recognition_event),
-                    "prepareRecognitionEvent(): invalid data offset %u for keyphrase event type",
-                    event->data_offset);
-        event->data_offset = sizeof(struct sound_trigger_phrase_recognition_event);
-        break;
-    case SOUND_MODEL_TYPE_GENERIC:
-        ALOGW_IF(event->data_size != 0 && event->data_offset !=
-                    sizeof(struct sound_trigger_generic_recognition_event),
-                    "prepareRecognitionEvent(): invalid data offset %u for generic event type",
-                    event->data_offset);
-        event->data_offset = sizeof(struct sound_trigger_generic_recognition_event);
-        break;
-    case SOUND_MODEL_TYPE_UNKNOWN:
-        ALOGW_IF(event->data_size != 0 && event->data_offset !=
-                    sizeof(struct sound_trigger_recognition_event),
-                    "prepareRecognitionEvent(): invalid data offset %u for unknown event type",
-                    event->data_offset);
-        event->data_offset = sizeof(struct sound_trigger_recognition_event);
-        break;
-    default:
-        return eventMemory;
-    }
-
-    size_t size = event->data_offset + event->data_size;
-    eventMemory = mMemoryDealer->allocate(size);
-    if (eventMemory == 0 || eventMemory->unsecurePointer() == NULL) {
-        eventMemory.clear();
-        return eventMemory;
-    }
-    memcpy(eventMemory->unsecurePointer(), event, size);
-
-    return eventMemory;
-}
-
-void SoundTriggerHwService::sendRecognitionEvent(struct sound_trigger_recognition_event *event,
-                                                 Module *module)
-{
-    if (module == NULL) {
-        return;
-    }
-    sp<IMemory> eventMemory = prepareRecognitionEvent(event);
-    if (eventMemory == 0) {
-        return;
-    }
-
-    sp<CallbackEvent> callbackEvent = new CallbackEvent(CallbackEvent::TYPE_RECOGNITION,
-                                                        eventMemory);
-    callbackEvent->setModule(module);
-    sendCallbackEvent(callbackEvent);
-}
-
-// static
-void SoundTriggerHwService::soundModelCallback(struct sound_trigger_model_event *event,
-                                               void *cookie)
-{
-    Module *module = (Module *)cookie;
-    if (module == NULL) {
-        return;
-    }
-    sp<SoundTriggerHwService> service = module->service().promote();
-    if (service == 0) {
-        return;
-    }
-
-    service->sendSoundModelEvent(event, module);
-}
-
-sp<IMemory> SoundTriggerHwService::prepareSoundModelEvent(struct sound_trigger_model_event *event)
-{
-    AutoMutex lock(mMemoryDealerLock);
-    sp<IMemory> eventMemory;
-
-    size_t size = event->data_offset + event->data_size;
-    eventMemory = mMemoryDealer->allocate(size);
-    if (eventMemory == 0 || eventMemory->unsecurePointer() == NULL) {
-        eventMemory.clear();
-        return eventMemory;
-    }
-    memcpy(eventMemory->unsecurePointer(), event, size);
-
-    return eventMemory;
-}
-
-void SoundTriggerHwService::sendSoundModelEvent(struct sound_trigger_model_event *event,
-                                                Module *module)
-{
-    sp<IMemory> eventMemory = prepareSoundModelEvent(event);
-    if (eventMemory == 0) {
-        return;
-    }
-    sp<CallbackEvent> callbackEvent = new CallbackEvent(CallbackEvent::TYPE_SOUNDMODEL,
-                                                        eventMemory);
-    callbackEvent->setModule(module);
-    sendCallbackEvent(callbackEvent);
-}
-
-
-sp<IMemory> SoundTriggerHwService::prepareServiceStateEvent(sound_trigger_service_state_t state)
-{
-    AutoMutex lock(mMemoryDealerLock);
-    sp<IMemory> eventMemory;
-
-    size_t size = sizeof(sound_trigger_service_state_t);
-    eventMemory = mMemoryDealer->allocate(size);
-    if (eventMemory == 0 || eventMemory->unsecurePointer() == NULL) {
-        eventMemory.clear();
-        return eventMemory;
-    }
-    *((sound_trigger_service_state_t *)eventMemory->unsecurePointer()) = state;
-    return eventMemory;
-}
-
-void SoundTriggerHwService::sendServiceStateEvent(sound_trigger_service_state_t state,
-                                                  Module *module)
-{
-    sp<IMemory> eventMemory = prepareServiceStateEvent(state);
-    if (eventMemory == 0) {
-        return;
-    }
-    sp<CallbackEvent> callbackEvent = new CallbackEvent(CallbackEvent::TYPE_SERVICE_STATE,
-                                                        eventMemory);
-    callbackEvent->setModule(module);
-    sendCallbackEvent(callbackEvent);
-}
-
-void SoundTriggerHwService::sendServiceStateEvent(sound_trigger_service_state_t state,
-                                                  ModuleClient *moduleClient)
-{
-    sp<IMemory> eventMemory = prepareServiceStateEvent(state);
-    if (eventMemory == 0) {
-        return;
-    }
-    sp<CallbackEvent> callbackEvent = new CallbackEvent(CallbackEvent::TYPE_SERVICE_STATE,
-                                                        eventMemory);
-    callbackEvent->setModuleClient(moduleClient);
-    sendCallbackEvent(callbackEvent);
-}
-
-void SoundTriggerHwService::sendCallbackEvent(const sp<CallbackEvent>& event)
-{
-    mCallbackThread->sendCallbackEvent(event);
-}
-
-void SoundTriggerHwService::onCallbackEvent(const sp<CallbackEvent>& event)
-{
-    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) {
-            moduleClient = event->mModuleClient.promote();
-            if (moduleClient == 0) {
-                return;
-            }
-        } else {
-            // Sanity check on this being a Module we know about.
-            bool foundModule = false;
-            for (size_t i = 0; i < mModules.size(); i++) {
-                if (mModules.valueAt(i).get() == module.get()) {
-                    foundModule = true;
-                    break;
-                }
-            }
-            if (!foundModule) {
-                ALOGE("onCallbackEvent for unknown module");
-                return;
-            }
-        }
-    }
-    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
-        event->mMemory.clear();
-    }
-}
-
-#undef LOG_TAG
-#define LOG_TAG "SoundTriggerHwService::CallbackThread"
-
-SoundTriggerHwService::CallbackThread::CallbackThread(const wp<SoundTriggerHwService>& service)
-    : mService(service)
-{
-}
-
-SoundTriggerHwService::CallbackThread::~CallbackThread()
-{
-    while (!mEventQueue.isEmpty()) {
-        mEventQueue[0]->mMemory.clear();
-        mEventQueue.removeAt(0);
-    }
-}
-
-void SoundTriggerHwService::CallbackThread::onFirstRef()
-{
-    run("soundTrigger cbk", ANDROID_PRIORITY_URGENT_AUDIO);
-}
-
-bool SoundTriggerHwService::CallbackThread::threadLoop()
-{
-    while (!exitPending()) {
-        sp<CallbackEvent> event;
-        sp<SoundTriggerHwService> service;
-        {
-            Mutex::Autolock _l(mCallbackLock);
-            while (mEventQueue.isEmpty() && !exitPending()) {
-                ALOGV("CallbackThread::threadLoop() sleep");
-                mCallbackCond.wait(mCallbackLock);
-                ALOGV("CallbackThread::threadLoop() wake up");
-            }
-            if (exitPending()) {
-                break;
-            }
-            event = mEventQueue[0];
-            mEventQueue.removeAt(0);
-            service = mService.promote();
-        }
-        if (service != 0) {
-            service->onCallbackEvent(event);
-        }
-    }
-    return false;
-}
-
-void SoundTriggerHwService::CallbackThread::exit()
-{
-    Mutex::Autolock _l(mCallbackLock);
-    requestExit();
-    mCallbackCond.broadcast();
-}
-
-void SoundTriggerHwService::CallbackThread::sendCallbackEvent(
-                        const sp<SoundTriggerHwService::CallbackEvent>& event)
-{
-    AutoMutex lock(mCallbackLock);
-    mEventQueue.add(event);
-    mCallbackCond.signal();
-}
-
-SoundTriggerHwService::CallbackEvent::CallbackEvent(event_type type, sp<IMemory> memory)
-    : mType(type), mMemory(memory)
-{
-}
-
-SoundTriggerHwService::CallbackEvent::~CallbackEvent()
-{
-}
-
-
-#undef LOG_TAG
-#define LOG_TAG "SoundTriggerHwService::Module"
-
-SoundTriggerHwService::Module::Module(const sp<SoundTriggerHwService>& service,
-                                      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();
-}
-
-sp<SoundTriggerHwService::ModuleClient>
-SoundTriggerHwService::Module::addClient(const sp<ISoundTriggerClient>& client,
-                                         const String16& opPackageName)
-{
-    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;
-        }
-    }
-    moduleClient = new ModuleClient(this, client, opPackageName);
-
-    ALOGV("addClient() client %p", moduleClient.get());
-    mModuleClients.add(moduleClient);
-
-    return moduleClient;
-}
-
-void SoundTriggerHwService::Module::detach(const sp<ModuleClient>& moduleClient)
-{
-    ALOGV("Module::detach()");
-    Vector<audio_session_t> releasedSessions;
-
-    {
-        AutoMutex lock(mLock);
-        ssize_t index = -1;
-
-        for (size_t i = 0; i < mModuleClients.size(); i++) {
-            if (mModuleClients[i] == moduleClient) {
-                index = i;
-                break;
-            }
-        }
-        if (index == -1) {
-            return;
-        }
-
-        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);
-                }
-                releasedSessions.add(model->mCaptureSession);
-            }
-        }
-    }
-
-    for (size_t i = 0; i < releasedSessions.size(); i++) {
-        // do not call AudioSystem methods with mLock held
-        AudioSystem::releaseSoundTriggerSession(releasedSessions[i]);
-    }
-}
-
-status_t SoundTriggerHwService::Module::loadSoundModel(const sp<IMemory>& modelMemory,
-                                                       sp<ModuleClient> moduleClient,
-                                                       sound_model_handle_t *handle)
-{
-    ALOGV("loadSoundModel() handle");
-    if (mHalInterface == 0) {
-        return NO_INIT;
-    }
-
-    auto immutableMemory = CopyToArray(modelMemory);
-    if (immutableMemory.first == nullptr) {
-        return NO_MEMORY;
-    }
-
-    struct sound_trigger_sound_model* sound_model =
-        (struct sound_trigger_sound_model*) immutableMemory.first.get();
-
-    size_t structSize;
-    if (sound_model->type == SOUND_MODEL_TYPE_KEYPHRASE) {
-        structSize = sizeof(struct sound_trigger_phrase_sound_model);
-    } else {
-        structSize = sizeof(struct sound_trigger_sound_model);
-    }
-
-    if (sound_model->data_offset < structSize ||
-        sound_model->data_size > (UINT_MAX - sound_model->data_offset) ||
-        immutableMemory.second < sound_model->data_offset ||
-            sound_model->data_size >
-            (immutableMemory.second - sound_model->data_offset)) {
-        android_errorWriteLog(0x534e4554, "30148546");
-        ALOGE("loadSoundModel() data_size is too big");
-        return BAD_VALUE;
-    }
-
-    audio_session_t session;
-    audio_io_handle_t ioHandle;
-    audio_devices_t device;
-    // do not call AudioSystem methods with mLock held
-    status_t status = AudioSystem::acquireSoundTriggerSession(&session, &ioHandle, &device);
-    if (status != NO_ERROR) {
-        return status;
-    }
-
-    {
-        AutoMutex lock(mLock);
-
-        if (mModels.size() >= mDescriptor.properties.max_sound_models) {
-            ALOGW("loadSoundModel(): Not loading, max number of models (%d) would be exceeded",
-                  mDescriptor.properties.max_sound_models);
-            status = INVALID_OPERATION;
-            goto exit;
-        }
-
-        status = mHalInterface->loadSoundModel(sound_model,
-                                                      SoundTriggerHwService::soundModelCallback,
-                                                      this, handle);
-        if (status != NO_ERROR) {
-            goto exit;
-        }
-
-        sp<Model> model = new Model(*handle, session, ioHandle, device, sound_model->type,
-                                    moduleClient);
-        mModels.replaceValueFor(*handle, model);
-    }
-exit:
-    if (status != NO_ERROR) {
-        // do not call AudioSystem methods with mLock held
-        AudioSystem::releaseSoundTriggerSession(session);
-    }
-    return status;
-}
-
-status_t SoundTriggerHwService::Module::unloadSoundModel(sound_model_handle_t handle)
-{
-    ALOGV("unloadSoundModel() model handle %d", handle);
-    status_t status;
-    audio_session_t session;
-
-    {
-        AutoMutex lock(mLock);
-        if (mHalInterface == 0) {
-            return NO_INIT;
-        }
-        ssize_t index = mModels.indexOfKey(handle);
-        if (index < 0) {
-            return BAD_VALUE;
-        }
-        sp<Model> model = mModels.valueAt(index);
-        mModels.removeItem(handle);
-        if (model->mState == Model::STATE_ACTIVE) {
-            mHalInterface->stopRecognition(model->mHandle);
-            model->mState = Model::STATE_IDLE;
-        }
-        status = mHalInterface->unloadSoundModel(handle);
-        session = model->mCaptureSession;
-    }
-    // do not call AudioSystem methods with mLock held
-    AudioSystem::releaseSoundTriggerSession(session);
-    return status;
-}
-
-status_t SoundTriggerHwService::Module::startRecognition(sound_model_handle_t handle,
-                                 const sp<IMemory>& dataMemory)
-{
-    ALOGV("startRecognition() model handle %d", handle);
-    if (mHalInterface == 0) {
-        return NO_INIT;
-    }
-
-    auto immutableMemory = CopyToArray(dataMemory);
-    if (immutableMemory.first == nullptr) {
-        return NO_MEMORY;
-    }
-
-    struct sound_trigger_recognition_config* config =
-        (struct sound_trigger_recognition_config*) immutableMemory.first.get();
-
-    if (config->data_offset < sizeof(struct sound_trigger_recognition_config) ||
-        config->data_size > (UINT_MAX - config->data_offset) ||
-        immutableMemory.second < config->data_offset ||
-            config->data_size >
-            (immutableMemory.second - config->data_offset)) {
-        ALOGE("startRecognition() data_size is too big");
-        return BAD_VALUE;
-    }
-
-    AutoMutex lock(mLock);
-    if (mServiceState == SOUND_TRIGGER_STATE_DISABLED) {
-        return INVALID_OPERATION;
-    }
-    sp<Model> model = getModel(handle);
-    if (model == 0) {
-        return BAD_VALUE;
-    }
-
-    if (model->mState == Model::STATE_ACTIVE) {
-        return INVALID_OPERATION;
-    }
-
-
-    //TODO: get capture handle and device from audio policy service
-    config->capture_handle = model->mCaptureIOHandle;
-    config->capture_device = model->mCaptureDevice;
-    status_t status = mHalInterface->startRecognition(handle, config,
-                                        SoundTriggerHwService::recognitionCallback,
-                                        this);
-
-    if (status == NO_ERROR) {
-        model->mState = Model::STATE_ACTIVE;
-        model->mConfig = *config;
-    }
-
-    return status;
-}
-
-status_t SoundTriggerHwService::Module::stopRecognition(sound_model_handle_t handle)
-{
-    ALOGV("stopRecognition() model handle %d", handle);
-    if (mHalInterface == 0) {
-        return NO_INIT;
-    }
-    AutoMutex lock(mLock);
-    sp<Model> model = getModel(handle);
-    if (model == 0) {
-        return BAD_VALUE;
-    }
-
-    if (model->mState != Model::STATE_ACTIVE) {
-        return INVALID_OPERATION;
-    }
-    mHalInterface->stopRecognition(handle);
-    model->mState = Model::STATE_IDLE;
-    return NO_ERROR;
-}
-
-status_t SoundTriggerHwService::Module::getModelState(sound_model_handle_t handle)
-{
-    ALOGV("getModelState() model handle %d", handle);
-    if (mHalInterface == 0) {
-        return NO_INIT;
-    }
-    AutoMutex lock(mLock);
-    sp<Model> model = getModel(handle);
-    if (model == 0) {
-        return BAD_VALUE;
-    }
-
-    if (model->mState != Model::STATE_ACTIVE) {
-        return INVALID_OPERATION;
-    }
-
-    return mHalInterface->getModelState(handle);
-}
-
-void SoundTriggerHwService::Module::onCallbackEvent(const sp<CallbackEvent>& event)
-{
-    ALOGV("onCallbackEvent type %d", event->mType);
-
-    // Memory is coming from a trusted process.
-    sp<IMemory> eventMemory = event->mMemory;
-
-    if (eventMemory == 0 || eventMemory->unsecurePointer() == NULL) {
-        return;
-    }
-    if (mModuleClients.isEmpty()) {
-        ALOGI("%s no clients", __func__);
-        return;
-    }
-
-    Vector< sp<ModuleClient> > clients;
-
-    switch (event->mType) {
-    case CallbackEvent::TYPE_RECOGNITION: {
-        struct sound_trigger_recognition_event *recognitionEvent =
-                (struct sound_trigger_recognition_event *)eventMemory->unsecurePointer();
-        {
-            AutoMutex lock(mLock);
-            sp<Model> model = getModel(recognitionEvent->model);
-            if (model == 0) {
-                ALOGW("%s model == 0", __func__);
-                return;
-            }
-            if (model->mState != Model::STATE_ACTIVE) {
-                ALOGV("onCallbackEvent model->mState %d != Model::STATE_ACTIVE", model->mState);
-                return;
-            }
-
-            recognitionEvent->capture_session = model->mCaptureSession;
-            model->mState = Model::STATE_IDLE;
-            clients.add(model->mModuleClient);
-        }
-    } break;
-    case CallbackEvent::TYPE_SOUNDMODEL: {
-        struct sound_trigger_model_event *soundmodelEvent =
-                (struct sound_trigger_model_event *)eventMemory->unsecurePointer();
-        {
-            AutoMutex lock(mLock);
-            sp<Model> model = getModel(soundmodelEvent->model);
-            if (model == 0) {
-                ALOGW("%s model == 0", __func__);
-                return;
-            }
-            clients.add(model->mModuleClient);
-        }
-    } break;
-    case CallbackEvent::TYPE_SERVICE_STATE: {
-        {
-            AutoMutex lock(mLock);
-            for (size_t i = 0; i < mModuleClients.size(); i++) {
-                if (mModuleClients[i] != 0) {
-                    clients.add(mModuleClients[i]);
-                }
-            }
-        }
-    } break;
-    default:
-        LOG_ALWAYS_FATAL("onCallbackEvent unknown event type %d", event->mType);
-    }
-
-    for (size_t i = 0; i < clients.size(); i++) {
-        clients[i]->onCallbackEvent(event);
-    }
-}
-
-sp<SoundTriggerHwService::Model> SoundTriggerHwService::Module::getModel(
-        sound_model_handle_t handle)
-{
-    sp<Model> model;
-    ssize_t index = mModels.indexOfKey(handle);
-    if (index >= 0) {
-        model = mModels.valueAt(index);
-    }
-    return model;
-}
-
-// Called with mServiceLock held
-void SoundTriggerHwService::Module::setCaptureState_l(bool active)
-{
-    ALOGV("Module::setCaptureState_l %d", active);
-    sp<SoundTriggerHwService> service;
-    sound_trigger_service_state_t state;
-
-    Vector< sp<IMemory> > events;
-    {
-        AutoMutex lock(mLock);
-        state = (active && !mDescriptor.properties.concurrent_capture) ?
-                                        SOUND_TRIGGER_STATE_DISABLED : SOUND_TRIGGER_STATE_ENABLED;
-
-        if (state == mServiceState) {
-            return;
-        }
-
-        mServiceState = state;
-
-        service = mService.promote();
-        if (service == 0) {
-            return;
-        }
-
-        if (state == SOUND_TRIGGER_STATE_ENABLED) {
-            goto exit;
-        }
-
-        const bool supports_stop_all =
-                (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 (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) {
-                    struct sound_trigger_phrase_recognition_event event;
-                    memset(&event, 0, sizeof(struct sound_trigger_phrase_recognition_event));
-                    event.num_phrases = model->mConfig.num_phrases;
-                    for (size_t i = 0; i < event.num_phrases; i++) {
-                        event.phrase_extras[i] = model->mConfig.phrases[i];
-                    }
-                    event.common.status = RECOGNITION_STATUS_ABORT;
-                    event.common.type = model->mType;
-                    event.common.model = model->mHandle;
-                    event.common.data_size = 0;
-                    sp<IMemory> eventMemory = service->prepareRecognitionEvent(&event.common);
-                    if (eventMemory != 0) {
-                        events.add(eventMemory);
-                    }
-                } else if (model->mType == SOUND_MODEL_TYPE_GENERIC) {
-                    struct sound_trigger_generic_recognition_event event;
-                    memset(&event, 0, sizeof(struct sound_trigger_generic_recognition_event));
-                    event.common.status = RECOGNITION_STATUS_ABORT;
-                    event.common.type = model->mType;
-                    event.common.model = model->mHandle;
-                    event.common.data_size = 0;
-                    sp<IMemory> eventMemory = service->prepareRecognitionEvent(&event.common);
-                    if (eventMemory != 0) {
-                        events.add(eventMemory);
-                    }
-                } else if (model->mType == SOUND_MODEL_TYPE_UNKNOWN) {
-                    struct sound_trigger_phrase_recognition_event event;
-                    memset(&event, 0, sizeof(struct sound_trigger_phrase_recognition_event));
-                    event.common.status = RECOGNITION_STATUS_ABORT;
-                    event.common.type = model->mType;
-                    event.common.model = model->mHandle;
-                    event.common.data_size = 0;
-                    sp<IMemory> eventMemory = service->prepareRecognitionEvent(&event.common);
-                    if (eventMemory != 0) {
-                        events.add(eventMemory);
-                    }
-                } else {
-                    goto exit;
-                }
-            }
-        }
-    }
-
-    for (size_t i = 0; i < events.size(); i++) {
-        sp<CallbackEvent> callbackEvent = new CallbackEvent(CallbackEvent::TYPE_RECOGNITION,
-                                                            events[i]);
-        callbackEvent->setModule(this);
-        service->sendCallbackEvent(callbackEvent);
-    }
-
-exit:
-    service->sendServiceStateEvent(state, this);
-}
-
-
-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,
-                                    sp<ModuleClient>& moduleClient) :
-    mHandle(handle), mState(STATE_IDLE), mCaptureSession(session),
-    mCaptureIOHandle(ioHandle), mCaptureDevice(device), mType(type),
-    mModuleClient(moduleClient)
-{
-}
-
-#undef LOG_TAG
-#define LOG_TAG "SoundTriggerHwService::ModuleClient"
-
-SoundTriggerHwService::ModuleClient::ModuleClient(const sp<Module>& module,
-                                                  const sp<ISoundTriggerClient>& client,
-                                                  const String16& opPackageName)
- : mModule(module), mClient(client), mOpPackageName(opPackageName)
-{
-}
-
-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(mOpPackageName,
-                               IPCThreadState::self()->getCallingPid(),
-                               IPCThreadState::self()->getCallingUid())) {
-        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(mOpPackageName,
-                               IPCThreadState::self()->getCallingPid(),
-                               IPCThreadState::self()->getCallingUid())) {
-        return PERMISSION_DENIED;
-    }
-    if (checkIMemory(modelMemory) != NO_ERROR) {
-        return BAD_VALUE;
-    }
-
-    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(mOpPackageName,
-                               IPCThreadState::self()->getCallingPid(),
-                               IPCThreadState::self()->getCallingUid())) {
-        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(mOpPackageName,
-                               IPCThreadState::self()->getCallingPid(),
-                               IPCThreadState::self()->getCallingUid())) {
-        return PERMISSION_DENIED;
-    }
-    if (checkIMemory(dataMemory) != NO_ERROR) {
-        return BAD_VALUE;
-    }
-
-    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(mOpPackageName,
-                               IPCThreadState::self()->getCallingPid(),
-                               IPCThreadState::self()->getCallingUid())) {
-        return PERMISSION_DENIED;
-    }
-
-    sp<Module> module = mModule.promote();
-    if (module == 0) {
-        return NO_INIT;
-    }
-    return module->stopRecognition(handle);
-}
-
-status_t SoundTriggerHwService::ModuleClient::getModelState(sound_model_handle_t handle)
-{
-    ALOGV("getModelState() model handle %d", handle);
-    if (!captureHotwordAllowed(mOpPackageName,
-                               IPCThreadState::self()->getCallingPid(),
-                               IPCThreadState::self()->getCallingUid())) {
-        return PERMISSION_DENIED;
-    }
-
-    sp<Module> module = mModule.promote();
-    if (module == 0) {
-        return NO_INIT;
-    }
-    return module->getModelState(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(state, this);
-}
-
-void SoundTriggerHwService::ModuleClient::onCallbackEvent(const sp<CallbackEvent>& event)
-{
-    ALOGV("ModuleClient onCallbackEvent type %d", event->mType);
-
-    sp<IMemory> eventMemory = event->mMemory;
-
-    // Memory is coming from a trusted process.
-    if (eventMemory == 0 || eventMemory->unsecurePointer() == NULL) {
-        return;
-    }
-
-    sp<ISoundTriggerClient> client;
-    {
-        AutoMutex lock(mLock);
-        client = mClient;
-    }
-
-    if (client != 0) {
-        switch (event->mType) {
-        case CallbackEvent::TYPE_RECOGNITION: {
-            client->onRecognitionEvent(eventMemory);
-        } break;
-        case CallbackEvent::TYPE_SOUNDMODEL: {
-            client->onSoundModelEvent(eventMemory);
-        } break;
-        case CallbackEvent::TYPE_SERVICE_STATE: {
-            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
deleted file mode 100644
index 43ad611..0000000
--- a/services/soundtrigger/SoundTriggerHwService.h
+++ /dev/null
@@ -1,254 +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_SOUNDTRIGGER_HAL_SERVICE_H
-#define ANDROID_HARDWARE_SOUNDTRIGGER_HAL_SERVICE_H
-
-#include <utils/Vector.h>
-//#include <binder/AppOpsManager.h>
-#include <binder/MemoryDealer.h>
-#include <binder/BinderService.h>
-#include <binder/IAppOpsCallback.h>
-#include <soundtrigger/ISoundTriggerHwService.h>
-#include <soundtrigger/ISoundTrigger.h>
-#include <soundtrigger/ISoundTriggerClient.h>
-#include <system/sound_trigger.h>
-#include "SoundTriggerHalInterface.h"
-
-namespace android {
-
-class MemoryHeapBase;
-
-class SoundTriggerHwService :
-    public BinderService<SoundTriggerHwService>,
-    public BnSoundTriggerHwService
-{
-    friend class BinderService<SoundTriggerHwService>;
-public:
-    class Module;
-    class ModuleClient;
-
-    static char const* getServiceName() { return "media.sound_trigger_hw"; }
-
-                        SoundTriggerHwService();
-    virtual             ~SoundTriggerHwService();
-
-    // ISoundTriggerHwService
-    virtual status_t listModules(const String16& opPackageName,
-                                 struct sound_trigger_module_descriptor *modules,
-                                 uint32_t *numModules);
-
-    virtual status_t attach(const String16& opPackageName,
-                            const sound_trigger_module_handle_t handle,
-                            const sp<ISoundTriggerClient>& client,
-                            sp<ISoundTrigger>& module);
-
-    virtual status_t setCaptureState(bool active);
-
-    virtual status_t    onTransact(uint32_t code, const Parcel& data,
-                                   Parcel* reply, uint32_t flags);
-
-    virtual status_t    dump(int fd, const Vector<String16>& args);
-
-    class Model : public RefBase {
-     public:
-
-        enum {
-            STATE_IDLE,
-            STATE_ACTIVE
-        };
-
-        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,
-              sp<ModuleClient>& moduleClient);
-        ~Model() {}
-
-        sound_model_handle_t    mHandle;
-        int                     mState;
-        audio_session_t         mCaptureSession;
-        audio_io_handle_t       mCaptureIOHandle;
-        audio_devices_t         mCaptureDevice;
-        sound_trigger_sound_model_type_t mType;
-        struct sound_trigger_recognition_config mConfig;
-        sp<ModuleClient>        mModuleClient;
-    };
-
-    class CallbackEvent : public RefBase {
-    public:
-        typedef enum {
-            TYPE_RECOGNITION,
-            TYPE_SOUNDMODEL,
-            TYPE_SERVICE_STATE,
-        } event_type;
-        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 RefBase {
-    public:
-
-       Module(const sp<SoundTriggerHwService>& service,
-              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);
-       virtual status_t getModelState(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,
-                                  const String16& opPackageName);
-
-       void detach(const sp<ModuleClient>& moduleClient);
-
-       void onCallbackEvent(const sp<CallbackEvent>& event);
-
-    private:
-
-        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,
-              const String16& opPackageName);
-
-       virtual ~ModuleClient();
-
-       virtual void detach();
-
-       virtual status_t loadSoundModel(const sp<IMemory>& modelMemory,
-                                       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);
-       virtual status_t getModelState(sound_model_handle_t handle);
-
-       virtual status_t dump(int fd, const Vector<String16>& args);
-
-       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:
-
-        mutable Mutex               mLock;
-        wp<Module>                  mModule;
-        sp<ISoundTriggerClient>     mClient;
-        const String16              mOpPackageName;
-    }; // class ModuleClient
-
-    class CallbackThread : public Thread {
-    public:
-
-        explicit CallbackThread(const wp<SoundTriggerHwService>& service);
-
-        virtual             ~CallbackThread();
-
-        // Thread virtuals
-        virtual bool        threadLoop();
-
-        // RefBase
-        virtual void        onFirstRef();
-
-                void        exit();
-                void        sendCallbackEvent(const sp<CallbackEvent>& event);
-
-    private:
-        wp<SoundTriggerHwService>   mService;
-        Condition                   mCallbackCond;
-        Mutex                       mCallbackLock;
-        Vector< sp<CallbackEvent> > mEventQueue;
-    };
-
-    static void recognitionCallback(struct sound_trigger_recognition_event *event, void *cookie);
-           sp<IMemory> prepareRecognitionEvent(struct sound_trigger_recognition_event *event);
-           void sendRecognitionEvent(struct sound_trigger_recognition_event *event, Module *module);
-
-    static void soundModelCallback(struct sound_trigger_model_event *event, void *cookie);
-           sp<IMemory> prepareSoundModelEvent(struct sound_trigger_model_event *event);
-           void sendSoundModelEvent(struct sound_trigger_model_event *event, Module *module);
-
-           sp<IMemory> prepareServiceStateEvent(sound_trigger_service_state_t state);
-           void sendServiceStateEvent(sound_trigger_service_state_t state, Module *module);
-           void sendServiceStateEvent(sound_trigger_service_state_t state,
-                                      ModuleClient *moduleClient);
-
-           void sendCallbackEvent(const sp<CallbackEvent>& event);
-           void onCallbackEvent(const sp<CallbackEvent>& event);
-
-private:
-
-    virtual void onFirstRef();
-
-    Mutex               mServiceLock;
-    volatile int32_t    mNextUniqueId;
-    DefaultKeyedVector< sound_trigger_module_handle_t, sp<Module> >     mModules;
-    sp<CallbackThread>  mCallbackThread;
-    sp<MemoryDealer>    mMemoryDealer;
-    Mutex               mMemoryDealerLock;
-    bool                mCaptureState;
-};
-
-} // namespace android
-
-#endif // ANDROID_HARDWARE_SOUNDTRIGGER_HAL_SERVICE_H
diff --git a/soundtrigger/Android.bp b/soundtrigger/Android.bp
deleted file mode 100644
index 6178153..0000000
--- a/soundtrigger/Android.bp
+++ /dev/null
@@ -1,36 +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.
-
-cc_library_shared {
-    name: "libsoundtrigger",
-
-    srcs: [
-        "SoundTrigger.cpp",
-        "ISoundTrigger.cpp",
-        "ISoundTriggerClient.cpp",
-        "ISoundTriggerHwService.cpp",
-    ],
-
-    shared_libs: [
-        "libcutils",
-        "libutils",
-        "liblog",
-        "libbinder",
-    ],
-
-    cflags: [
-        "-Werror",
-        "-Wall",
-    ],
-}
diff --git a/soundtrigger/ISoundTrigger.cpp b/soundtrigger/ISoundTrigger.cpp
deleted file mode 100644
index f5b4b59..0000000
--- a/soundtrigger/ISoundTrigger.cpp
+++ /dev/null
@@ -1,203 +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_TAG "ISoundTrigger"
-#include <utils/Log.h>
-#include <utils/Errors.h>
-#include <binder/IMemory.h>
-#include <soundtrigger/ISoundTrigger.h>
-#include <soundtrigger/ISoundTriggerHwService.h>
-#include <soundtrigger/ISoundTriggerClient.h>
-#include <system/sound_trigger.h>
-
-namespace android {
-
-enum {
-    DETACH = IBinder::FIRST_CALL_TRANSACTION,
-    LOAD_SOUND_MODEL,
-    UNLOAD_SOUND_MODEL,
-    START_RECOGNITION,
-    STOP_RECOGNITION,
-    GET_MODEL_STATE,
-};
-
-class BpSoundTrigger: public BpInterface<ISoundTrigger>
-{
-public:
-    explicit BpSoundTrigger(const sp<IBinder>& impl)
-        : BpInterface<ISoundTrigger>(impl)
-    {
-    }
-
-    void detach()
-    {
-        ALOGV("detach");
-        Parcel data, reply;
-        data.writeInterfaceToken(ISoundTrigger::getInterfaceDescriptor());
-        remote()->transact(DETACH, data, &reply);
-    }
-
-    status_t loadSoundModel(const sp<IMemory>&  modelMemory,
-                                    sound_model_handle_t *handle)
-    {
-        if (modelMemory == 0 || handle == NULL) {
-            return BAD_VALUE;
-        }
-        Parcel data, reply;
-        data.writeInterfaceToken(ISoundTrigger::getInterfaceDescriptor());
-        data.writeStrongBinder(IInterface::asBinder(modelMemory));
-        status_t status = remote()->transact(LOAD_SOUND_MODEL, data, &reply);
-        if (status != NO_ERROR) {
-            return status;
-        }
-        status = (status_t)reply.readInt32();
-        if (status == NO_ERROR) {
-            reply.read(handle, sizeof(sound_model_handle_t));
-        }
-        return status;
-    }
-
-    virtual status_t unloadSoundModel(sound_model_handle_t handle)
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(ISoundTrigger::getInterfaceDescriptor());
-        data.write(&handle, sizeof(sound_model_handle_t));
-        status_t status = remote()->transact(UNLOAD_SOUND_MODEL, data, &reply);
-        if (status == NO_ERROR) {
-            status = (status_t)reply.readInt32();
-        }
-        return status;
-    }
-
-    virtual status_t startRecognition(sound_model_handle_t handle,
-                                      const sp<IMemory>& dataMemory)
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(ISoundTrigger::getInterfaceDescriptor());
-        data.write(&handle, sizeof(sound_model_handle_t));
-        if (dataMemory == 0) {
-            data.writeInt32(0);
-        } else {
-            data.writeInt32(dataMemory->size());
-        }
-        data.writeStrongBinder(IInterface::asBinder(dataMemory));
-        status_t status = remote()->transact(START_RECOGNITION, data, &reply);
-        if (status == NO_ERROR) {
-            status = (status_t)reply.readInt32();
-        }
-        return status;
-    }
-
-    virtual status_t stopRecognition(sound_model_handle_t handle)
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(ISoundTrigger::getInterfaceDescriptor());
-        data.write(&handle, sizeof(sound_model_handle_t));
-        status_t status = remote()->transact(STOP_RECOGNITION, data, &reply);
-        if (status == NO_ERROR) {
-            status = (status_t)reply.readInt32();
-        }
-        return status;
-    }
-
-    virtual status_t getModelState(sound_model_handle_t handle)
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(ISoundTrigger::getInterfaceDescriptor());
-        data.write(&handle, sizeof(sound_model_handle_t));
-        status_t status = remote()->transact(GET_MODEL_STATE, data, &reply);
-        if (status == NO_ERROR) {
-            status = (status_t)reply.readInt32();
-        }
-        return status;
-    }
-
-};
-
-IMPLEMENT_META_INTERFACE(SoundTrigger, "android.hardware.ISoundTrigger");
-
-// ----------------------------------------------------------------------
-
-status_t BnSoundTrigger::onTransact(
-    uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
-{
-    switch(code) {
-        case DETACH: {
-            ALOGV("DETACH");
-            CHECK_INTERFACE(ISoundTrigger, data, reply);
-            detach();
-            return NO_ERROR;
-        } break;
-        case LOAD_SOUND_MODEL: {
-            CHECK_INTERFACE(ISoundTrigger, data, reply);
-            sp<IMemory> modelMemory = interface_cast<IMemory>(
-                data.readStrongBinder());
-            sound_model_handle_t handle;
-            status_t status = loadSoundModel(modelMemory, &handle);
-            reply->writeInt32(status);
-            if (status == NO_ERROR) {
-                reply->write(&handle, sizeof(sound_model_handle_t));
-            }
-            return NO_ERROR;
-        }
-        case UNLOAD_SOUND_MODEL: {
-            CHECK_INTERFACE(ISoundTrigger, data, reply);
-            sound_model_handle_t handle;
-            data.read(&handle, sizeof(sound_model_handle_t));
-            status_t status = unloadSoundModel(handle);
-            reply->writeInt32(status);
-            return NO_ERROR;
-        }
-        case START_RECOGNITION: {
-            CHECK_INTERFACE(ISoundTrigger, data, reply);
-            sound_model_handle_t handle;
-            data.read(&handle, sizeof(sound_model_handle_t));
-            sp<IMemory> dataMemory;
-            if (data.readInt32() != 0) {
-                dataMemory = interface_cast<IMemory>(data.readStrongBinder());
-            }
-            status_t status = startRecognition(handle, dataMemory);
-            reply->writeInt32(status);
-            return NO_ERROR;
-        }
-        case STOP_RECOGNITION: {
-            CHECK_INTERFACE(ISoundTrigger, data, reply);
-            sound_model_handle_t handle;
-            data.read(&handle, sizeof(sound_model_handle_t));
-            status_t status = stopRecognition(handle);
-            reply->writeInt32(status);
-            return NO_ERROR;
-        }
-        case GET_MODEL_STATE: {
-            CHECK_INTERFACE(ISoundTrigger, data, reply);
-            sound_model_handle_t handle;
-            status_t status = UNKNOWN_ERROR;
-            status_t ret = data.read(&handle, sizeof(sound_model_handle_t));
-            if (ret == NO_ERROR) {
-                status = getModelState(handle);
-            }
-            reply->writeInt32(status);
-            return ret;
-        }
-        default:
-            return BBinder::onTransact(code, data, reply, flags);
-    }
-}
-
-// ----------------------------------------------------------------------------
-
-}; // namespace android
diff --git a/soundtrigger/ISoundTriggerClient.cpp b/soundtrigger/ISoundTriggerClient.cpp
deleted file mode 100644
index 1385631..0000000
--- a/soundtrigger/ISoundTriggerClient.cpp
+++ /dev/null
@@ -1,110 +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.
-*/
-
-#include <stdint.h>
-#include <sys/types.h>
-#include <binder/IMemory.h>
-#include <binder/Parcel.h>
-#include <binder/IPCThreadState.h>
-#include <binder/IServiceManager.h>
-#include <soundtrigger/ISoundTriggerClient.h>
-
-namespace android {
-
-enum {
-    ON_RECOGNITION_EVENT = IBinder::FIRST_CALL_TRANSACTION,
-    ON_SOUNDMODEL_EVENT,
-    ON_SERVICE_STATE_CHANGE
-};
-
-class BpSoundTriggerClient: public BpInterface<ISoundTriggerClient>
-{
-
-public:
-    explicit BpSoundTriggerClient(const sp<IBinder>& impl)
-        : BpInterface<ISoundTriggerClient>(impl)
-    {
-    }
-
-    virtual void onRecognitionEvent(const sp<IMemory>& eventMemory)
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(ISoundTriggerClient::getInterfaceDescriptor());
-        data.writeStrongBinder(IInterface::asBinder(eventMemory));
-        remote()->transact(ON_RECOGNITION_EVENT,
-                           data,
-                           &reply);
-    }
-
-    virtual void onSoundModelEvent(const sp<IMemory>& eventMemory)
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(ISoundTriggerClient::getInterfaceDescriptor());
-        data.writeStrongBinder(IInterface::asBinder(eventMemory));
-        remote()->transact(ON_SOUNDMODEL_EVENT,
-                           data,
-                           &reply);
-    }
-    virtual void onServiceStateChange(const sp<IMemory>& eventMemory)
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(ISoundTriggerClient::getInterfaceDescriptor());
-        data.writeStrongBinder(IInterface::asBinder(eventMemory));
-        remote()->transact(ON_SERVICE_STATE_CHANGE,
-                           data,
-                           &reply);
-    }
-};
-
-IMPLEMENT_META_INTERFACE(SoundTriggerClient,
-                         "android.hardware.ISoundTriggerClient");
-
-// ----------------------------------------------------------------------
-
-status_t BnSoundTriggerClient::onTransact(
-    uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
-{
-    switch(code) {
-        case ON_RECOGNITION_EVENT: {
-            CHECK_INTERFACE(ISoundTriggerClient, data, reply);
-            sp<IMemory> eventMemory = interface_cast<IMemory>(
-                data.readStrongBinder());
-            onRecognitionEvent(eventMemory);
-            return NO_ERROR;
-        } break;
-        case ON_SOUNDMODEL_EVENT: {
-            CHECK_INTERFACE(ISoundTriggerClient, data, reply);
-            sp<IMemory> eventMemory = interface_cast<IMemory>(
-                data.readStrongBinder());
-            onSoundModelEvent(eventMemory);
-            return NO_ERROR;
-        } break;
-        case ON_SERVICE_STATE_CHANGE: {
-            CHECK_INTERFACE(ISoundTriggerClient, data, reply);
-            sp<IMemory> eventMemory = interface_cast<IMemory>(
-                data.readStrongBinder());
-            onServiceStateChange(eventMemory);
-            return NO_ERROR;
-        } break;
-        default:
-            return BBinder::onTransact(code, data, reply, flags);
-    }
-}
-
-// ----------------------------------------------------------------------------
-
-}; // namespace android
diff --git a/soundtrigger/ISoundTriggerHwService.cpp b/soundtrigger/ISoundTriggerHwService.cpp
deleted file mode 100644
index bd107b4..0000000
--- a/soundtrigger/ISoundTriggerHwService.cpp
+++ /dev/null
@@ -1,197 +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_TAG "BpSoundTriggerHwService"
-//#define LOG_NDEBUG 0
-
-#include <utils/Log.h>
-#include <utils/Errors.h>
-
-#include <stdint.h>
-#include <sys/types.h>
-#include <binder/IMemory.h>
-#include <binder/Parcel.h>
-#include <binder/IPCThreadState.h>
-#include <binder/IServiceManager.h>
-
-#include <soundtrigger/ISoundTriggerHwService.h>
-#include <soundtrigger/ISoundTrigger.h>
-#include <soundtrigger/ISoundTriggerClient.h>
-
-namespace android {
-
-enum {
-    LIST_MODULES = IBinder::FIRST_CALL_TRANSACTION,
-    ATTACH,
-    SET_CAPTURE_STATE,
-};
-
-#define MAX_ITEMS_PER_LIST 1024
-
-class BpSoundTriggerHwService: public BpInterface<ISoundTriggerHwService>
-{
-public:
-    explicit BpSoundTriggerHwService(const sp<IBinder>& impl)
-        : BpInterface<ISoundTriggerHwService>(impl)
-    {
-    }
-
-    virtual status_t listModules(const String16& opPackageName,
-                                 struct sound_trigger_module_descriptor *modules,
-                                 uint32_t *numModules)
-    {
-        if (numModules == NULL || (*numModules != 0 && modules == NULL)) {
-            return BAD_VALUE;
-        }
-        Parcel data, reply;
-        data.writeInterfaceToken(ISoundTriggerHwService::getInterfaceDescriptor());
-        data.writeString16(opPackageName);
-        unsigned int numModulesReq = (modules == 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();
-        }
-        ALOGV("listModules() status %d got *numModules %d", status, *numModules);
-        if (status == NO_ERROR) {
-            if (numModulesReq > *numModules) {
-                numModulesReq = *numModules;
-            }
-            if (numModulesReq > 0) {
-                reply.read(modules, numModulesReq * sizeof(struct sound_trigger_module_descriptor));
-            }
-        }
-        return status;
-    }
-
-    virtual status_t attach(const String16& opPackageName,
-                            const sound_trigger_module_handle_t handle,
-                            const sp<ISoundTriggerClient>& client,
-                            sp<ISoundTrigger>& module)
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(ISoundTriggerHwService::getInterfaceDescriptor());
-        data.writeString16(opPackageName);
-        data.write(&handle, sizeof(sound_trigger_module_handle_t));
-        data.writeStrongBinder(IInterface::asBinder(client));
-        status_t status = remote()->transact(ATTACH, data, &reply);
-        if (status != NO_ERROR) {
-            return status;
-        }
-        status = reply.readInt32();
-        if (reply.readInt32() != 0) {
-            module = interface_cast<ISoundTrigger>(reply.readStrongBinder());
-        }
-        return status;
-    }
-
-    virtual status_t setCaptureState(bool active)
-    {
-        Parcel data, reply;
-        data.writeInterfaceToken(ISoundTriggerHwService::getInterfaceDescriptor());
-        data.writeInt32(active);
-        status_t status = remote()->transact(SET_CAPTURE_STATE, data, &reply);
-        if (status == NO_ERROR) {
-            status = reply.readInt32();
-        }
-        return status;
-    }
-
-};
-
-IMPLEMENT_META_INTERFACE(SoundTriggerHwService, "android.hardware.ISoundTriggerHwService");
-
-// ----------------------------------------------------------------------
-
-status_t BnSoundTriggerHwService::onTransact(
-    uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
-{
-    switch(code) {
-        case LIST_MODULES: {
-            CHECK_INTERFACE(ISoundTriggerHwService, data, reply);
-            String16 opPackageName;
-            status_t status = data.readString16(&opPackageName);
-            if (status != NO_ERROR) {
-                return status;
-            }
-            unsigned int numModulesReq = data.readInt32();
-            if (numModulesReq > MAX_ITEMS_PER_LIST) {
-                numModulesReq = MAX_ITEMS_PER_LIST;
-            }
-            unsigned int numModules = numModulesReq;
-            struct sound_trigger_module_descriptor *modules =
-                    (struct sound_trigger_module_descriptor *)calloc(numModulesReq,
-                                                   sizeof(struct sound_trigger_module_descriptor));
-            if (modules == NULL) {
-                reply->writeInt32(NO_MEMORY);
-                reply->writeInt32(0);
-                return NO_ERROR;
-            }
-            status = listModules(opPackageName, modules, &numModules);
-            reply->writeInt32(status);
-            reply->writeInt32(numModules);
-            ALOGV("LIST_MODULES status %d got numModules %d", status, numModules);
-
-            if (status == NO_ERROR) {
-                if (numModulesReq > numModules) {
-                    numModulesReq = numModules;
-                }
-                reply->write(modules,
-                             numModulesReq * sizeof(struct sound_trigger_module_descriptor));
-            }
-            free(modules);
-            return NO_ERROR;
-        }
-
-        case ATTACH: {
-            CHECK_INTERFACE(ISoundTriggerHwService, data, reply);
-            String16 opPackageName;
-            status_t status = data.readString16(&opPackageName);
-            if (status != NO_ERROR) {
-                return status;
-            }
-            sound_trigger_module_handle_t handle;
-            data.read(&handle, sizeof(sound_trigger_module_handle_t));
-            sp<ISoundTriggerClient> client =
-                    interface_cast<ISoundTriggerClient>(data.readStrongBinder());
-            sp<ISoundTrigger> module;
-            status = attach(opPackageName, handle, client, module);
-            reply->writeInt32(status);
-            if (module != 0) {
-                reply->writeInt32(1);
-                reply->writeStrongBinder(IInterface::asBinder(module));
-            } else {
-                reply->writeInt32(0);
-            }
-            return NO_ERROR;
-        } break;
-
-        case SET_CAPTURE_STATE: {
-            CHECK_INTERFACE(ISoundTriggerHwService, data, reply);
-            reply->writeInt32(setCaptureState((bool)data.readInt32()));
-            return NO_ERROR;
-        } break;
-
-        default:
-            return BBinder::onTransact(code, data, reply, flags);
-    }
-}
-
-// ----------------------------------------------------------------------------
-
-}; // namespace android
diff --git a/soundtrigger/OWNERS b/soundtrigger/OWNERS
deleted file mode 100644
index e83f6b9..0000000
--- a/soundtrigger/OWNERS
+++ /dev/null
@@ -1,2 +0,0 @@
-elaurent@google.com
-thorntonc@google.com
diff --git a/soundtrigger/SoundTrigger.cpp b/soundtrigger/SoundTrigger.cpp
deleted file mode 100644
index e297ee7..0000000
--- a/soundtrigger/SoundTrigger.cpp
+++ /dev/null
@@ -1,303 +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_TAG "SoundTrigger"
-//#define LOG_NDEBUG 0
-
-#include <utils/Log.h>
-#include <utils/threads.h>
-#include <binder/IPCThreadState.h>
-#include <binder/IServiceManager.h>
-#include <binder/IMemory.h>
-
-#include <soundtrigger/SoundTrigger.h>
-#include <soundtrigger/ISoundTrigger.h>
-#include <soundtrigger/ISoundTriggerHwService.h>
-#include <soundtrigger/ISoundTriggerClient.h>
-#include <soundtrigger/SoundTriggerCallback.h>
-
-namespace android {
-
-namespace {
-    sp<ISoundTriggerHwService> gSoundTriggerHwService;
-    const int                  kSoundTriggerHwServicePollDelay = 500000; // 0.5s
-    const char*                kSoundTriggerHwServiceName      = "media.sound_trigger_hw";
-    Mutex                      gLock;
-
-    class DeathNotifier : public IBinder::DeathRecipient
-    {
-    public:
-        DeathNotifier() {
-        }
-
-        virtual void binderDied(const wp<IBinder>& who __unused) {
-            ALOGV("binderDied");
-            Mutex::Autolock _l(gLock);
-            gSoundTriggerHwService.clear();
-            ALOGW("Sound trigger service died!");
-        }
-    };
-
-    sp<DeathNotifier>         gDeathNotifier;
-}; // namespace anonymous
-
-const sp<ISoundTriggerHwService> SoundTrigger::getSoundTriggerHwService()
-{
-    Mutex::Autolock _l(gLock);
-    if (gSoundTriggerHwService.get() == 0) {
-        sp<IServiceManager> sm = defaultServiceManager();
-        sp<IBinder> binder;
-        do {
-            binder = sm->getService(String16(kSoundTriggerHwServiceName));
-            if (binder != 0) {
-                break;
-            }
-            ALOGW("SoundTriggerHwService not published, waiting...");
-            usleep(kSoundTriggerHwServicePollDelay);
-        } while(true);
-        if (gDeathNotifier == NULL) {
-            gDeathNotifier = new DeathNotifier();
-        }
-        binder->linkToDeath(gDeathNotifier);
-        gSoundTriggerHwService = interface_cast<ISoundTriggerHwService>(binder);
-    }
-    ALOGE_IF(gSoundTriggerHwService == 0, "no SoundTriggerHwService!?");
-    return gSoundTriggerHwService;
-}
-
-// Static methods
-status_t SoundTrigger::listModules(const String16& opPackageName,
-                                   struct sound_trigger_module_descriptor *modules,
-                                   uint32_t *numModules)
-{
-    ALOGV("listModules()");
-    const sp<ISoundTriggerHwService> service = getSoundTriggerHwService();
-    if (service == 0) {
-        return NO_INIT;
-    }
-    return service->listModules(opPackageName, modules, numModules);
-}
-
-sp<SoundTrigger> SoundTrigger::attach(const String16& opPackageName,
-                                      const sound_trigger_module_handle_t module,
-                                      const sp<SoundTriggerCallback>& callback)
-{
-    ALOGV("attach()");
-    sp<SoundTrigger> soundTrigger;
-    const sp<ISoundTriggerHwService> service = getSoundTriggerHwService();
-    if (service == 0) {
-        return soundTrigger;
-    }
-    soundTrigger = new SoundTrigger(module, callback);
-    status_t status = service->attach(opPackageName, module, soundTrigger,
-                                      soundTrigger->mISoundTrigger);
-
-    if (status == NO_ERROR && soundTrigger->mISoundTrigger != 0) {
-        IInterface::asBinder(soundTrigger->mISoundTrigger)->linkToDeath(soundTrigger);
-    } else {
-        ALOGW("Error %d connecting to sound trigger service", status);
-        soundTrigger.clear();
-    }
-    return soundTrigger;
-}
-
-
-status_t SoundTrigger::setCaptureState(bool active)
-{
-    ALOGV("setCaptureState(%d)", active);
-    const sp<ISoundTriggerHwService> service = getSoundTriggerHwService();
-    if (service == 0) {
-        return NO_INIT;
-    }
-    return service->setCaptureState(active);
-}
-
-// SoundTrigger
-SoundTrigger::SoundTrigger(sound_trigger_module_handle_t /*module*/,
-                                 const sp<SoundTriggerCallback>& callback)
-    : mCallback(callback)
-{
-}
-
-SoundTrigger::~SoundTrigger()
-{
-    if (mISoundTrigger != 0) {
-        mISoundTrigger->detach();
-    }
-}
-
-
-void SoundTrigger::detach() {
-    ALOGV("detach()");
-    Mutex::Autolock _l(mLock);
-    mCallback.clear();
-    if (mISoundTrigger != 0) {
-        mISoundTrigger->detach();
-        IInterface::asBinder(mISoundTrigger)->unlinkToDeath(this);
-        mISoundTrigger = 0;
-    }
-}
-
-status_t SoundTrigger::loadSoundModel(const sp<IMemory>& modelMemory,
-                                sound_model_handle_t *handle)
-{
-    Mutex::Autolock _l(mLock);
-    if (mISoundTrigger == 0) {
-        return NO_INIT;
-    }
-
-    return mISoundTrigger->loadSoundModel(modelMemory, handle);
-}
-
-status_t SoundTrigger::unloadSoundModel(sound_model_handle_t handle)
-{
-    Mutex::Autolock _l(mLock);
-    if (mISoundTrigger == 0) {
-        return NO_INIT;
-    }
-    return mISoundTrigger->unloadSoundModel(handle);
-}
-
-status_t SoundTrigger::startRecognition(sound_model_handle_t handle,
-                                        const sp<IMemory>& dataMemory)
-{
-    Mutex::Autolock _l(mLock);
-    if (mISoundTrigger == 0) {
-        return NO_INIT;
-    }
-    return mISoundTrigger->startRecognition(handle, dataMemory);
-}
-
-status_t SoundTrigger::stopRecognition(sound_model_handle_t handle)
-{
-    Mutex::Autolock _l(mLock);
-    if (mISoundTrigger == 0) {
-        return NO_INIT;
-    }
-    return mISoundTrigger->stopRecognition(handle);
-}
-
-status_t SoundTrigger::getModelState(sound_model_handle_t handle)
-{
-    Mutex::Autolock _l(mLock);
-    if (mISoundTrigger == 0) {
-        return NO_INIT;
-    }
-    return mISoundTrigger->getModelState(handle);
-}
-
-// BpSoundTriggerClient
-void SoundTrigger::onRecognitionEvent(const sp<IMemory>& eventMemory)
-{
-    Mutex::Autolock _l(mLock);
-    if (eventMemory == 0 || eventMemory->unsecurePointer() == NULL) {
-        return;
-    }
-
-    if (mCallback != 0) {
-        // Memory is coming from a trusted process.
-        mCallback->onRecognitionEvent(
-                (struct sound_trigger_recognition_event *)eventMemory->unsecurePointer());
-    }
-}
-
-void SoundTrigger::onSoundModelEvent(const sp<IMemory>& eventMemory)
-{
-    Mutex::Autolock _l(mLock);
-    if (eventMemory == 0 || eventMemory->unsecurePointer() == NULL) {
-        return;
-    }
-
-    if (mCallback != 0) {
-        // Memory is coming from a trusted process.
-        mCallback->onSoundModelEvent(
-                (struct sound_trigger_model_event *)eventMemory->unsecurePointer());
-    }
-}
-
-void SoundTrigger::onServiceStateChange(const sp<IMemory>& eventMemory)
-{
-    Mutex::Autolock _l(mLock);
-    if (eventMemory == 0 || eventMemory->unsecurePointer() == NULL) {
-        return;
-    }
-
-    if (mCallback != 0) {
-        // Memory is coming from a trusted process.
-        mCallback->onServiceStateChange(
-                *((sound_trigger_service_state_t *)eventMemory->unsecurePointer()));
-    }
-}
-
-//IBinder::DeathRecipient
-void SoundTrigger::binderDied(const wp<IBinder>& who __unused) {
-    Mutex::Autolock _l(mLock);
-    ALOGW("SoundTrigger server binder Died ");
-    mISoundTrigger = 0;
-    if (mCallback != 0) {
-        mCallback->onServiceDied();
-    }
-}
-
-status_t SoundTrigger::stringToGuid(const char *str, sound_trigger_uuid_t *guid)
-{
-    if (str == NULL || guid == NULL) {
-        return BAD_VALUE;
-    }
-
-    int tmp[10];
-
-    if (sscanf(str, "%08x-%04x-%04x-%04x-%02x%02x%02x%02x%02x%02x",
-            tmp, tmp+1, tmp+2, tmp+3, tmp+4, tmp+5, tmp+6, tmp+7, tmp+8, tmp+9) < 10) {
-        return BAD_VALUE;
-    }
-    guid->timeLow = (uint32_t)tmp[0];
-    guid->timeMid = (uint16_t)tmp[1];
-    guid->timeHiAndVersion = (uint16_t)tmp[2];
-    guid->clockSeq = (uint16_t)tmp[3];
-    guid->node[0] = (uint8_t)tmp[4];
-    guid->node[1] = (uint8_t)tmp[5];
-    guid->node[2] = (uint8_t)tmp[6];
-    guid->node[3] = (uint8_t)tmp[7];
-    guid->node[4] = (uint8_t)tmp[8];
-    guid->node[5] = (uint8_t)tmp[9];
-
-    return NO_ERROR;
-}
-
-status_t SoundTrigger::guidToString(const sound_trigger_uuid_t *guid, char *str, size_t maxLen)
-{
-    if (guid == NULL || str == NULL) {
-        return BAD_VALUE;
-    }
-
-    snprintf(str, maxLen, "%08x-%04x-%04x-%04x-%02x%02x%02x%02x%02x%02x",
-            guid->timeLow,
-            guid->timeMid,
-            guid->timeHiAndVersion,
-            guid->clockSeq,
-            guid->node[0],
-            guid->node[1],
-            guid->node[2],
-            guid->node[3],
-            guid->node[4],
-            guid->node[5]);
-
-    return NO_ERROR;
-}
-
-}; // namespace android
diff --git a/tools/mainline_hook.sh b/tools/mainline_hook.sh
new file mode 100755
index 0000000..58afb49
--- /dev/null
+++ b/tools/mainline_hook.sh
@@ -0,0 +1,84 @@
+#!/bin/bash
+LOCAL_DIR="$( dirname "${BASH_SOURCE}" )"
+
+MAINLINE_FRAMEWORKS_AV_PATHS=(
+    media/extractors/
+    media/codec2/components/
+    media/libstagefright/codecs/amrnb
+    media/libstagefright/codecs/amrwb
+    media/libstagefright/codecs/amrwbenc
+    media/libstagefright/codecs/common
+    media/libstagefright/codecs/mp3dec
+    media/libstagefright/codecs/m4v_h263
+    media/libstagefright/flac/dec
+    media/libstagefright/mpeg2ts
+)
+
+MAINLINE_EXTERNAL_PROJECTS=(
+    external/aac
+    external/flac
+    external/libaac
+    external/libaom
+    external/libavc
+    external/libgav1
+    external/libgsm
+    external/libhevc
+    external/libmpeg2
+    external/libopus
+    external/libvpx
+    external/libxaac
+    external/sonivox
+    external/tremolo
+)
+
+DEV_BRANCH=qt-aml-media-dev
+RED=$(tput setaf 1)
+NORMAL=$(tput sgr0)
+WARNING_FULL="${RED}Please upload this change in ${DEV_BRANCH} unless it is restricted
+from mainline release until next dessert release. Low/moderate security bugs
+are restricted this way.${NORMAL}"
+WARNING_PARTIAL="${RED}It looks like your change has mainline and non-mainline changes;
+Consider separating them into two separate CLs -- one for mainline files,
+one for non-mainline files.${NORMAL}"
+PWD=`pwd`
+
+if git branch -vv | grep -q -P "^\*[^\[]+\[goog/qt-aml-media-dev"; then
+    # Change appears to be in mainline dev branch
+    exit 0
+fi
+
+for path in "${MAINLINE_EXTERNAL_PROJECTS[@]}"; do
+    if [[ $PWD =~ $path ]]; then
+        echo -e "${RED}The source of truth for '$path' is in ${DEV_BRANCH}.${NORMAL}"
+        echo -e ${WARNING_FULL}
+        exit 1
+    fi
+done
+
+if [[ ! $PWD =~ frameworks/av ]]; then
+    exit 0
+fi
+
+mainline_count=0
+total_count=0
+echo
+while read -r file ; do
+    (( total_count++ ))
+    for path in "${MAINLINE_FRAMEWORKS_AV_PATHS[@]}"; do
+        if [[ $file =~ ^$path ]]; then
+            echo -e "${RED}The source of truth for '$file' is in ${DEV_BRANCH}.${NORMAL}"
+            (( mainline_count++ ))
+            break
+        fi
+    done
+done < <(git show --name-only --pretty=format: $1 | grep -- "$2")
+
+if (( mainline_count != 0 )); then
+    if (( mainline_count == total_count )); then
+        echo -e ${WARNING_FULL}
+    else
+        echo -e ${WARNING_PARTIAL}
+    fi
+    exit 1
+fi
+exit 0