Merge "Change skip frame to ALOGD"
diff --git a/camera/cameraserver/cameraserver.rc b/camera/cameraserver/cameraserver.rc
index fea5a1d..a9aae0b 100644
--- a/camera/cameraserver/cameraserver.rc
+++ b/camera/cameraserver/cameraserver.rc
@@ -4,3 +4,4 @@
     group audio camera input drmrpc
     ioprio rt 4
     writepid /dev/cpuset/camera-daemon/tasks /dev/stune/top-app/tasks
+    rlimit rtprio 10 10
diff --git a/camera/ndk/NdkCameraManager.cpp b/camera/ndk/NdkCameraManager.cpp
index 60b4763..f14a4c9 100644
--- a/camera/ndk/NdkCameraManager.cpp
+++ b/camera/ndk/NdkCameraManager.cpp
@@ -23,6 +23,7 @@
 
 #include <camera/NdkCameraManager.h>
 #include "impl/ACameraManager.h"
+#include "impl/ACameraMetadata.h"
 
 using namespace android;
 
@@ -107,7 +108,14 @@
                 __FUNCTION__, mgr, cameraId, chars);
         return ACAMERA_ERROR_INVALID_PARAMETER;
     }
-    return mgr->getCameraCharacteristics(cameraId, chars);
+    sp<ACameraMetadata> spChars;
+    camera_status_t status = mgr->getCameraCharacteristics(cameraId, &spChars);
+    if (status != ACAMERA_OK) {
+        return status;
+    }
+    spChars->incStrong((void*) ACameraManager_getCameraCharacteristics);
+    *chars = spChars.get();
+    return ACAMERA_OK;
 }
 
 EXPORT
diff --git a/camera/ndk/NdkCameraMetadata.cpp b/camera/ndk/NdkCameraMetadata.cpp
index 65de81f..34ec2da 100644
--- a/camera/ndk/NdkCameraMetadata.cpp
+++ b/camera/ndk/NdkCameraMetadata.cpp
@@ -57,13 +57,15 @@
         ALOGE("%s: src is null!", __FUNCTION__);
         return nullptr;
     }
-    return new ACameraMetadata(*src);
+    ACameraMetadata* copy = new ACameraMetadata(*src);
+    copy->incStrong((void*) ACameraMetadata_copy);
+    return copy;
 }
 
 EXPORT
 void ACameraMetadata_free(ACameraMetadata* metadata) {
     ATRACE_CALL();
     if (metadata != nullptr) {
-        delete metadata;
+        metadata->decStrong((void*) ACameraMetadata_free);
     }
 }
diff --git a/camera/ndk/NdkCaptureRequest.cpp b/camera/ndk/NdkCaptureRequest.cpp
index ac1856b..ddb69d7 100644
--- a/camera/ndk/NdkCaptureRequest.cpp
+++ b/camera/ndk/NdkCaptureRequest.cpp
@@ -137,7 +137,7 @@
     if (request == nullptr) {
         return;
     }
-    delete request->settings;
+    request->settings.clear();
     delete request->targets;
     delete request;
     return;
diff --git a/camera/ndk/impl/ACameraDevice.cpp b/camera/ndk/impl/ACameraDevice.cpp
index 907debc..c908323 100644
--- a/camera/ndk/impl/ACameraDevice.cpp
+++ b/camera/ndk/impl/ACameraDevice.cpp
@@ -50,11 +50,11 @@
 CameraDevice::CameraDevice(
         const char* id,
         ACameraDevice_StateCallbacks* cb,
-        std::unique_ptr<ACameraMetadata> chars,
+        sp<ACameraMetadata> chars,
         ACameraDevice* wrapper) :
         mCameraId(id),
         mAppCallbacks(*cb),
-        mChars(std::move(chars)),
+        mChars(chars),
         mServiceCallback(new ServiceCallback(this)),
         mWrapper(wrapper),
         mInError(false),
@@ -436,7 +436,7 @@
     if (req == nullptr) {
         return;
     }
-    delete req->settings;
+    req->settings.clear();
     delete req->targets;
     delete req;
 }
diff --git a/camera/ndk/impl/ACameraDevice.h b/camera/ndk/impl/ACameraDevice.h
index 1369148..7d64081 100644
--- a/camera/ndk/impl/ACameraDevice.h
+++ b/camera/ndk/impl/ACameraDevice.h
@@ -48,7 +48,7 @@
 class CameraDevice final : public RefBase {
   public:
     CameraDevice(const char* id, ACameraDevice_StateCallbacks* cb,
-                  std::unique_ptr<ACameraMetadata> chars,
+                  sp<ACameraMetadata> chars,
                   ACameraDevice* wrapper);
     ~CameraDevice();
 
@@ -156,7 +156,7 @@
     mutable Mutex mDeviceLock;
     const String8 mCameraId;                          // Camera ID
     const ACameraDevice_StateCallbacks mAppCallbacks; // Callback to app
-    const std::unique_ptr<ACameraMetadata> mChars;    // Camera characteristics
+    const sp<ACameraMetadata> mChars;                 // Camera characteristics
     const sp<ServiceCallback> mServiceCallback;
     ACameraDevice* mWrapper;
 
@@ -294,8 +294,8 @@
  */
 struct ACameraDevice {
     ACameraDevice(const char* id, ACameraDevice_StateCallbacks* cb,
-                  std::unique_ptr<ACameraMetadata> chars) :
-            mDevice(new CameraDevice(id, cb, std::move(chars), this)) {}
+                  sp<ACameraMetadata> chars) :
+            mDevice(new CameraDevice(id, cb, chars, this)) {}
 
     ~ACameraDevice() {};
 
diff --git a/camera/ndk/impl/ACameraManager.cpp b/camera/ndk/impl/ACameraManager.cpp
index c59d0e7..ee67677 100644
--- a/camera/ndk/impl/ACameraManager.cpp
+++ b/camera/ndk/impl/ACameraManager.cpp
@@ -402,7 +402,7 @@
 }
 
 camera_status_t ACameraManager::getCameraCharacteristics(
-        const char *cameraIdStr, ACameraMetadata **characteristics) {
+        const char* cameraIdStr, sp<ACameraMetadata>* characteristics) {
     Mutex::Autolock _l(mLock);
 
     sp<hardware::ICameraService> cs = CameraManagerGlobal::getInstance().getCameraService();
@@ -437,18 +437,16 @@
         const char* cameraId,
         ACameraDevice_StateCallbacks* callback,
         /*out*/ACameraDevice** outDevice) {
-    ACameraMetadata* rawChars;
-    camera_status_t ret = getCameraCharacteristics(cameraId, &rawChars);
+    sp<ACameraMetadata> chars;
+    camera_status_t ret = getCameraCharacteristics(cameraId, &chars);
     Mutex::Autolock _l(mLock);
     if (ret != ACAMERA_OK) {
         ALOGE("%s: cannot get camera characteristics for camera %s. err %d",
                 __FUNCTION__, cameraId, ret);
         return ACAMERA_ERROR_INVALID_PARAMETER;
     }
-    std::unique_ptr<ACameraMetadata> chars(rawChars);
-    rawChars = nullptr;
 
-    ACameraDevice* device = new ACameraDevice(cameraId, callback, std::move(chars));
+    ACameraDevice* device = new ACameraDevice(cameraId, callback, chars);
 
     sp<hardware::ICameraService> cs = CameraManagerGlobal::getInstance().getCameraService();
     if (cs == nullptr) {
diff --git a/camera/ndk/impl/ACameraManager.h b/camera/ndk/impl/ACameraManager.h
index cc42f77..ce65769 100644
--- a/camera/ndk/impl/ACameraManager.h
+++ b/camera/ndk/impl/ACameraManager.h
@@ -186,7 +186,7 @@
     static void     deleteCameraIdList(ACameraIdList* cameraIdList);
 
     camera_status_t getCameraCharacteristics(
-            const char *cameraId, ACameraMetadata **characteristics);
+            const char* cameraId, android::sp<ACameraMetadata>* characteristics);
     camera_status_t openCamera(const char* cameraId,
                                ACameraDevice_StateCallbacks* callback,
                                /*out*/ACameraDevice** device);
diff --git a/camera/ndk/impl/ACaptureRequest.h b/camera/ndk/impl/ACaptureRequest.h
index 06b2cc3..b11dafb 100644
--- a/camera/ndk/impl/ACaptureRequest.h
+++ b/camera/ndk/impl/ACaptureRequest.h
@@ -55,7 +55,7 @@
         return ACAMERA_OK;
     }
 
-    ACameraMetadata*      settings;
+    sp<ACameraMetadata>   settings;
     ACameraOutputTargets* targets;
     void*                 context;
 };
diff --git a/camera/ndk/include/camera/NdkCameraMetadataTags.h b/camera/ndk/include/camera/NdkCameraMetadataTags.h
index 0501006..c1f5ddc 100644
--- a/camera/ndk/include/camera/NdkCameraMetadataTags.h
+++ b/camera/ndk/include/camera/NdkCameraMetadataTags.h
@@ -2312,7 +2312,9 @@
      * <p>If this device is the largest or only camera device with a given facing, then this
      * position will be <code>(0, 0, 0)</code>; a camera device with a lens optical center located 3 cm
      * from the main sensor along the +X axis (to the right from the user's perspective) will
-     * report <code>(0.03, 0, 0)</code>.</p>
+     * report <code>(0.03, 0, 0)</code>.  Note that this means that, for many computer vision
+     * applications, the position needs to be negated to convert it to a translation from the
+     * camera to the origin.</p>
      * <p>To transform a pixel coordinates between two cameras facing the same direction, first
      * the source camera ACAMERA_LENS_DISTORTION must be corrected for.  Then the source
      * camera ACAMERA_LENS_INTRINSIC_CALIBRATION needs to be applied, followed by the
@@ -2324,7 +2326,8 @@
      * <p>To compare this against a real image from the destination camera, the destination camera
      * image then needs to be corrected for radial distortion before comparison or sampling.</p>
      * <p>When ACAMERA_LENS_POSE_REFERENCE is GYROSCOPE, then this position is relative to
-     * the center of the primary gyroscope on the device.</p>
+     * the center of the primary gyroscope on the device. The axis definitions are the same as
+     * with PRIMARY_CAMERA.</p>
      *
      * @see ACAMERA_LENS_DISTORTION
      * @see ACAMERA_LENS_INTRINSIC_CALIBRATION
@@ -2418,13 +2421,15 @@
      * </code></pre>
      * <p>which can then be combined with the camera pose rotation
      * <code>R</code> and translation <code>t</code> (ACAMERA_LENS_POSE_ROTATION and
-     * ACAMERA_LENS_POSE_TRANSLATION, respective) to calculate the
+     * ACAMERA_LENS_POSE_TRANSLATION, respectively) to calculate the
      * complete transform from world coordinates to pixel
      * coordinates:</p>
-     * <pre><code>P = [ K 0   * [ R t
-     *      0 1 ]     0 1 ]
+     * <pre><code>P = [ K 0   * [ R -Rt
+     *      0 1 ]      0 1 ]
      * </code></pre>
-     * <p>and with <code>p_w</code> being a point in the world coordinate system
+     * <p>(Note the negation of poseTranslation when mapping from camera
+     * to world coordinates, and multiplication by the rotation).</p>
+     * <p>With <code>p_w</code> being a point in the world coordinate system
      * and <code>p_s</code> being a point in the camera active pixel array
      * coordinate system, and with the mapping including the
      * homogeneous division by z:</p>
@@ -2446,6 +2451,13 @@
      * activeArraySize rectangle), to determine the final pixel
      * coordinate of the world point for processed (non-RAW)
      * output buffers.</p>
+     * <p>For camera devices, the center of pixel <code>(x,y)</code> is located at
+     * coordinate <code>(x + 0.5, y + 0.5)</code>.  So on a device with a
+     * precorrection active array of size <code>(10,10)</code>, the valid pixel
+     * indices go from <code>(0,0)-(9,9)</code>, and an perfectly-built camera would
+     * have an optical center at the exact center of the pixel grid, at
+     * coordinates <code>(5.0, 5.0)</code>, which is the top-left corner of pixel
+     * <code>(5,5)</code>.</p>
      *
      * @see ACAMERA_LENS_DISTORTION
      * @see ACAMERA_LENS_POSE_ROTATION
@@ -3059,7 +3071,7 @@
      * outputs will crop horizontally (pillarbox), and 16:9
      * streams will match exactly. These additional crops will
      * be centered within the crop region.</p>
-     * <p>If the coordinate system is android.sensor.info.activeArraysSize, the width and height
+     * <p>If the coordinate system is ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE, the width and height
      * of the crop region cannot be set to be smaller than
      * <code>floor( activeArraySize.width / ACAMERA_SCALER_AVAILABLE_MAX_DIGITAL_ZOOM )</code> and
      * <code>floor( activeArraySize.height / ACAMERA_SCALER_AVAILABLE_MAX_DIGITAL_ZOOM )</code>, respectively.</p>
@@ -4675,8 +4687,8 @@
     ACAMERA_STATISTICS_LENS_SHADING_MAP_MODE =                  // byte (acamera_metadata_enum_android_statistics_lens_shading_map_mode_t)
             ACAMERA_STATISTICS_START + 16,
     /**
-     * <p>A control for selecting whether OIS position information is included in output
-     * result metadata.</p>
+     * <p>A control for selecting whether optical stabilization (OIS) position
+     * information is included in output result metadata.</p>
      *
      * <p>Type: byte (acamera_metadata_enum_android_statistics_ois_data_mode_t)</p>
      *
@@ -4686,6 +4698,12 @@
      *   <li>ACaptureRequest</li>
      * </ul></p>
      *
+     * <p>Since optical image stabilization generally involves motion much faster than the duration
+     * of individualq image exposure, multiple OIS samples can be included for a single capture
+     * result. For example, if the OIS reporting operates at 200 Hz, a typical camera operating
+     * at 30fps may have 6-7 OIS samples per capture result. This information can be combined
+     * with the rolling shutter skew to account for lens motion during image exposure in
+     * post-processing algorithms.</p>
      */
     ACAMERA_STATISTICS_OIS_DATA_MODE =                          // byte (acamera_metadata_enum_android_statistics_ois_data_mode_t)
             ACAMERA_STATISTICS_START + 17,
@@ -4717,11 +4735,15 @@
      * </ul></p>
      *
      * <p>The array contains the amount of shifts in x direction, in pixels, based on OIS samples.
-     * A positive value is a shift from left to right in active array coordinate system. For
-     * example, if the optical center is (1000, 500) in active array coordinates, a shift of
-     * (3, 0) puts the new optical center at (1003, 500).</p>
+     * A positive value is a shift from left to right in the pre-correction active array
+     * coordinate system. For example, if the optical center is (1000, 500) in pre-correction
+     * active array coordinates, a shift of (3, 0) puts the new optical center at (1003, 500).</p>
      * <p>The number of shifts must match the number of timestamps in
      * ACAMERA_STATISTICS_OIS_TIMESTAMPS.</p>
+     * <p>The OIS samples are not affected by whether lens distortion correction is enabled (on
+     * supporting devices). They are always reported in pre-correction active array coordinates,
+     * since the scaling of OIS shifts would depend on the specific spot on the sensor the shift
+     * is needed.</p>
      *
      * @see ACAMERA_STATISTICS_OIS_TIMESTAMPS
      */
@@ -4738,11 +4760,15 @@
      * </ul></p>
      *
      * <p>The array contains the amount of shifts in y direction, in pixels, based on OIS samples.
-     * A positive value is a shift from top to bottom in active array coordinate system. For
-     * example, if the optical center is (1000, 500) in active array coordinates, a shift of
-     * (0, 5) puts the new optical center at (1000, 505).</p>
+     * A positive value is a shift from top to bottom in pre-correction active array coordinate
+     * system. For example, if the optical center is (1000, 500) in active array coordinates, a
+     * shift of (0, 5) puts the new optical center at (1000, 505).</p>
      * <p>The number of shifts must match the number of timestamps in
      * ACAMERA_STATISTICS_OIS_TIMESTAMPS.</p>
+     * <p>The OIS samples are not affected by whether lens distortion correction is enabled (on
+     * supporting devices). They are always reported in pre-correction active array coordinates,
+     * since the scaling of OIS shifts would depend on the specific spot on the sensor the shift
+     * is needed.</p>
      *
      * @see ACAMERA_STATISTICS_OIS_TIMESTAMPS
      */
@@ -5432,16 +5458,34 @@
      * any correction at all would slow down capture rate.  Every output stream will have a
      * similar amount of enhancement applied.</p>
      * <p>The correction only applies to processed outputs such as YUV, JPEG, or DEPTH16; it is not
-     * applied to any RAW output. Metadata coordinates such as face rectangles or metering
-     * regions are also not affected by correction.</p>
+     * applied to any RAW output.</p>
      * <p>This control will be on by default on devices that support this control. Applications
      * disabling distortion correction need to pay extra attention with the coordinate system of
      * metering regions, crop region, and face rectangles. When distortion correction is OFF,
      * metadata coordinates follow the coordinate system of
      * ACAMERA_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE. When distortion is not OFF, metadata
-     * coordinates follow the coordinate system of ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE.</p>
+     * coordinates follow the coordinate system of ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE.  The
+     * camera device will map these metadata fields to match the corrected image produced by the
+     * camera device, for both capture requests and results.  However, this mapping is not very
+     * precise, since rectangles do not generally map to rectangles when corrected.  Only linear
+     * scaling between the active array and precorrection active array coordinates is
+     * performed. Applications that require precise correction of metadata need to undo that
+     * linear scaling, and apply a more complete correction that takes into the account the app's
+     * own requirements.</p>
+     * <p>The full list of metadata that is affected in this way by distortion correction is:</p>
+     * <ul>
+     * <li>ACAMERA_CONTROL_AF_REGIONS</li>
+     * <li>ACAMERA_CONTROL_AE_REGIONS</li>
+     * <li>ACAMERA_CONTROL_AWB_REGIONS</li>
+     * <li>ACAMERA_SCALER_CROP_REGION</li>
+     * <li>android.statistics.faces</li>
+     * </ul>
      *
+     * @see ACAMERA_CONTROL_AE_REGIONS
+     * @see ACAMERA_CONTROL_AF_REGIONS
+     * @see ACAMERA_CONTROL_AWB_REGIONS
      * @see ACAMERA_LENS_DISTORTION
+     * @see ACAMERA_SCALER_CROP_REGION
      * @see ACAMERA_SENSOR_INFO_ACTIVE_ARRAY_SIZE
      * @see ACAMERA_SENSOR_INFO_PRE_CORRECTION_ACTIVE_ARRAY_SIZE
      */
@@ -7173,11 +7217,11 @@
      * camera in the list of supported camera devices.</p>
      * <p>This capability requires the camera device to support the following:</p>
      * <ul>
-     * <li>This camera device must list the following static metadata entries in <a href="https://developer.android.com/reference/android/hardware/camera2/CameraCharacteristics.html">CameraCharacteristics</a>:<ul>
-     * <li>android.logicalMultiCamera.physicalIds</li>
-     * <li>ACAMERA_LOGICAL_MULTI_CAMERA_SENSOR_SYNC_TYPE</li>
-     * </ul>
-     * </li>
+     * <li>The IDs of underlying physical cameras are returned via
+     *   <a href="https://developer.android.com/reference/android/hardware/camera2/CameraCharacteristics.html#getPhysicalCameraIds">CameraCharacteristics#getPhysicalCameraIds</a>.</li>
+     * <li>This camera device must list static metadata
+     *   ACAMERA_LOGICAL_MULTI_CAMERA_SENSOR_SYNC_TYPE in
+     *   <a href="https://developer.android.com/reference/android/hardware/camera2/CameraCharacteristics.html">CameraCharacteristics</a>.</li>
      * <li>The underlying physical cameras' static metadata must list the following entries,
      *   so that the application can correlate pixels from the physical streams:<ul>
      * <li>ACAMERA_LENS_POSE_REFERENCE</li>
diff --git a/cmds/screenrecord/screenrecord.cpp b/cmds/screenrecord/screenrecord.cpp
index a7ac2d7..c559ff9 100644
--- a/cmds/screenrecord/screenrecord.cpp
+++ b/cmds/screenrecord/screenrecord.cpp
@@ -140,14 +140,6 @@
 }
 
 /*
- * Returns "true" if the device is rotated 90 degrees.
- */
-static bool isDeviceRotated(int orientation) {
-    return orientation != DISPLAY_ORIENTATION_0 &&
-            orientation != DISPLAY_ORIENTATION_180;
-}
-
-/*
  * Configures and starts the MediaCodec encoder.  Obtains an input surface
  * from the codec.
  */
@@ -242,22 +234,11 @@
         const DisplayInfo& mainDpyInfo) {
 
     // Set the region of the layer stack we're interested in, which in our
-    // case is "all of it".  If the app is rotated (so that the width of the
-    // app is based on the height of the display), reverse width/height.
-    bool deviceRotated = isDeviceRotated(mainDpyInfo.orientation);
-    uint32_t sourceWidth, sourceHeight;
-    if (!deviceRotated) {
-        sourceWidth = mainDpyInfo.w;
-        sourceHeight = mainDpyInfo.h;
-    } else {
-        ALOGV("using rotated width/height");
-        sourceHeight = mainDpyInfo.w;
-        sourceWidth = mainDpyInfo.h;
-    }
-    Rect layerStackRect(sourceWidth, sourceHeight);
+    // case is "all of it".
+    Rect layerStackRect(mainDpyInfo.w, mainDpyInfo.h);
 
     // We need to preserve the aspect ratio of the display.
-    float displayAspect = (float) sourceHeight / (float) sourceWidth;
+    float displayAspect = (float) mainDpyInfo.h / (float) mainDpyInfo.w;
 
 
     // Set the way we map the output onto the display surface (which will
@@ -334,6 +315,22 @@
 }
 
 /*
+ * Set the main display width and height to the actual width and height
+ */
+static status_t getActualDisplaySize(const sp<IBinder>& mainDpy, DisplayInfo* mainDpyInfo) {
+    Rect viewport;
+    status_t err = SurfaceComposerClient::getDisplayViewport(mainDpy, &viewport);
+    if (err != NO_ERROR) {
+        fprintf(stderr, "ERROR: unable to get display viewport\n");
+        return err;
+    }
+    mainDpyInfo->w = viewport.width();
+    mainDpyInfo->h = viewport.height();
+
+    return NO_ERROR;
+}
+
+/*
  * Runs the MediaCodec encoder, sending the output to the MediaMuxer.  The
  * input frames are coming from the virtual display as fast as SurfaceFlinger
  * wants to send them.
@@ -403,14 +400,22 @@
                     // useful stuff is hard to get at without a Dalvik VM.
                     err = SurfaceComposerClient::getDisplayInfo(mainDpy,
                             &mainDpyInfo);
-                    if (err != NO_ERROR) {
+                    if (err == NO_ERROR) {
+                        err = getActualDisplaySize(mainDpy, &mainDpyInfo);
+                        if (err != NO_ERROR) {
+                            fprintf(stderr, "ERROR: unable to set actual display size\n");
+                            return err;
+                        }
+
+                        if (orientation != mainDpyInfo.orientation) {
+                            ALOGD("orientation changed, now %d", mainDpyInfo.orientation);
+                            SurfaceComposerClient::Transaction t;
+                            setDisplayProjection(t, virtualDpy, mainDpyInfo);
+                            t.apply();
+                            orientation = mainDpyInfo.orientation;
+                        }
+                    } else {
                         ALOGW("getDisplayInfo(main) failed: %d", err);
-                    } else if (orientation != mainDpyInfo.orientation) {
-                        ALOGD("orientation changed, now %d", mainDpyInfo.orientation);
-                        SurfaceComposerClient::Transaction t;
-                        setDisplayProjection(t, virtualDpy, mainDpyInfo);
-                        t.apply();
-                        orientation = mainDpyInfo.orientation;
                     }
                 }
 
@@ -552,6 +557,10 @@
     return rawFp;
 }
 
+static inline uint32_t floorToEven(uint32_t num) {
+    return num & ~1;
+}
+
 /*
  * Main "do work" start point.
  *
@@ -579,6 +588,13 @@
         fprintf(stderr, "ERROR: unable to get display characteristics\n");
         return err;
     }
+
+    err = getActualDisplaySize(mainDpy, &mainDpyInfo);
+    if (err != NO_ERROR) {
+        fprintf(stderr, "ERROR: unable to set actual display size\n");
+        return err;
+    }
+
     if (gVerbose) {
         printf("Main display is %dx%d @%.2ffps (orientation=%u)\n",
                 mainDpyInfo.w, mainDpyInfo.h, mainDpyInfo.fps,
@@ -586,12 +602,12 @@
         fflush(stdout);
     }
 
-    bool rotated = isDeviceRotated(mainDpyInfo.orientation);
+    // Encoder can't take odd number as config
     if (gVideoWidth == 0) {
-        gVideoWidth = rotated ? mainDpyInfo.h : mainDpyInfo.w;
+        gVideoWidth = floorToEven(mainDpyInfo.w);
     }
     if (gVideoHeight == 0) {
-        gVideoHeight = rotated ? mainDpyInfo.w : mainDpyInfo.h;
+        gVideoHeight = floorToEven(mainDpyInfo.h);
     }
 
     // Configure and start the encoder.
diff --git a/cmds/stagefright/record.cpp b/cmds/stagefright/record.cpp
index 44b0015..95a16f3 100644
--- a/cmds/stagefright/record.cpp
+++ b/cmds/stagefright/record.cpp
@@ -17,7 +17,6 @@
 #include "SineSource.h"
 
 #include <binder/ProcessState.h>
-#include <media/MediaExtractor.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/ALooper.h>
 #include <media/stagefright/foundation/AMessage.h>
@@ -28,6 +27,7 @@
 #include <media/stagefright/MediaDefs.h>
 #include <media/stagefright/MediaCodecSource.h>
 #include <media/stagefright/MetaData.h>
+#include <media/stagefright/MediaExtractor.h>
 #include <media/stagefright/MediaExtractorFactory.h>
 #include <media/stagefright/MPEG4Writer.h>
 #include <media/stagefright/SimpleDecodingSource.h>
diff --git a/cmds/stagefright/stagefright.cpp b/cmds/stagefright/stagefright.cpp
index d41d3fd..0d331df 100644
--- a/cmds/stagefright/stagefright.cpp
+++ b/cmds/stagefright/stagefright.cpp
@@ -32,7 +32,6 @@
 #include <binder/IServiceManager.h>
 #include <binder/ProcessState.h>
 #include <media/DataSource.h>
-#include <media/MediaExtractor.h>
 #include <media/MediaSource.h>
 #include <media/ICrypto.h>
 #include <media/IMediaHTTPService.h>
@@ -50,6 +49,7 @@
 #include <media/stagefright/MediaCodecList.h>
 #include <media/stagefright/MediaDefs.h>
 #include <media/stagefright/MediaErrors.h>
+#include <media/stagefright/MediaExtractor.h>
 #include <media/stagefright/MediaExtractorFactory.h>
 #include <media/stagefright/MetaData.h>
 #include <media/stagefright/SimpleDecodingSource.h>
@@ -650,7 +650,8 @@
         MEDIA_MIMETYPE_AUDIO_MPEG, MEDIA_MIMETYPE_AUDIO_G711_MLAW,
         MEDIA_MIMETYPE_AUDIO_G711_ALAW, MEDIA_MIMETYPE_AUDIO_VORBIS,
         MEDIA_MIMETYPE_VIDEO_VP8, MEDIA_MIMETYPE_VIDEO_VP9,
-        MEDIA_MIMETYPE_VIDEO_DOLBY_VISION, MEDIA_MIMETYPE_AUDIO_AC4
+        MEDIA_MIMETYPE_VIDEO_DOLBY_VISION,
+        MEDIA_MIMETYPE_AUDIO_EAC3, MEDIA_MIMETYPE_AUDIO_AC4
     };
 
     const char *codecType = queryDecoders? "decoder" : "encoder";
diff --git a/cmds/stagefright/stream.cpp b/cmds/stagefright/stream.cpp
index b0199d8..b2f39dc 100644
--- a/cmds/stagefright/stream.cpp
+++ b/cmds/stagefright/stream.cpp
@@ -24,7 +24,6 @@
 #include <media/DataSource.h>
 #include <media/IMediaHTTPService.h>
 #include <media/IStreamSource.h>
-#include <media/MediaExtractor.h>
 #include <media/mediaplayer.h>
 #include <media/MediaSource.h>
 #include <media/stagefright/foundation/ADebug.h>
@@ -32,6 +31,7 @@
 #include <media/stagefright/DataSourceFactory.h>
 #include <media/stagefright/InterfaceUtils.h>
 #include <media/stagefright/MPEG2TSWriter.h>
+#include <media/stagefright/MediaExtractor.h>
 #include <media/stagefright/MediaExtractorFactory.h>
 #include <media/stagefright/MetaData.h>
 
diff --git a/drm/libmediadrm/ICrypto.cpp b/drm/libmediadrm/ICrypto.cpp
index 73ecda1..a2594aa 100644
--- a/drm/libmediadrm/ICrypto.cpp
+++ b/drm/libmediadrm/ICrypto.cpp
@@ -225,8 +225,13 @@
 
 void BnCrypto::readVector(const Parcel &data, Vector<uint8_t> &vector) const {
     uint32_t size = data.readInt32();
-    vector.insertAt((size_t)0, size);
-    data.read(vector.editArray(), size);
+    if (vector.insertAt((size_t)0, size) < 0) {
+        vector.clear();
+    }
+    if (data.read(vector.editArray(), size) != NO_ERROR) {
+        vector.clear();
+        android_errorWriteWithInfoLog(0x534e4554, "62872384", -1, NULL, 0);
+    }
 }
 
 void BnCrypto::writeVector(Parcel *reply, Vector<uint8_t> const &vector) const {
diff --git a/include/media/MediaExtractor.h b/include/media/MediaExtractor.h
deleted file mode 120000
index 4b35fe1..0000000
--- a/include/media/MediaExtractor.h
+++ /dev/null
@@ -1 +0,0 @@
-../../media/libmediaextractor/include/media/MediaExtractor.h
\ No newline at end of file
diff --git a/include/media/MediaExtractorPluginApi.h b/include/media/MediaExtractorPluginApi.h
new file mode 100644
index 0000000..930b6e2
--- /dev/null
+++ b/include/media/MediaExtractorPluginApi.h
@@ -0,0 +1,98 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef MEDIA_EXTRACTOR_PLUGIN_API_H_
+#define MEDIA_EXTRACTOR_PLUGIN_API_H_
+
+#include <utils/Errors.h> // for status_t
+
+namespace android {
+
+struct MediaTrack;
+class MetaDataBase;
+
+extern "C" {
+
+struct CDataSource {
+    ssize_t (*readAt)(void *handle, off64_t offset, void *data, size_t size);
+    status_t (*getSize)(void *handle, off64_t *size);
+    uint32_t (*flags)(void *handle );
+    bool (*getUri)(void *handle, char *uriString, size_t bufferSize);
+    void *handle;
+};
+
+struct CMediaExtractor {
+    void *data;
+
+    void (*free)(void *data);
+    size_t (*countTracks)(void *data);
+    MediaTrack* (*getTrack)(void *data, size_t index);
+    status_t (*getTrackMetaData)(
+            void *data,
+            MetaDataBase& meta,
+            size_t index, uint32_t flags);
+
+    status_t (*getMetaData)(void *data, MetaDataBase& meta);
+    uint32_t (*flags)(void *data);
+    status_t (*setMediaCas)(void *data, const uint8_t* casToken, size_t size);
+    const char * (*name)(void *data);
+};
+
+typedef CMediaExtractor* (*CreatorFunc)(CDataSource *source, void *meta);
+typedef void (*FreeMetaFunc)(void *meta);
+
+// The sniffer can optionally fill in an opaque object, "meta", that helps
+// the corresponding extractor initialize its state without duplicating
+// effort already exerted by the sniffer. If "freeMeta" is given, it will be
+// called against the opaque object when it is no longer used.
+typedef CreatorFunc (*SnifferFunc)(
+        CDataSource *source, float *confidence,
+        void **meta, FreeMetaFunc *freeMeta);
+
+typedef struct {
+    const uint8_t b[16];
+} media_uuid_t;
+
+typedef struct {
+    // version number of this structure
+    const uint32_t def_version;
+
+    // A unique identifier for this extractor.
+    // See below for a convenience macro to create this from a string.
+    media_uuid_t extractor_uuid;
+
+    // Version number of this extractor. When two extractors with the same
+    // uuid are encountered, the one with the largest version number will
+    // be used.
+    const uint32_t extractor_version;
+
+    // a human readable name
+    const char *extractor_name;
+
+    // the sniffer function
+    const SnifferFunc sniff;
+} ExtractorDef;
+
+const uint32_t EXTRACTORDEF_VERSION = 1;
+
+// each plugin library exports one function of this type
+typedef ExtractorDef (*GetExtractorDef)();
+
+} // extern "C"
+
+}  // namespace android
+
+#endif  // MEDIA_EXTRACTOR_PLUGIN_API_H_
diff --git a/include/media/MediaExtractorPluginHelper.h b/include/media/MediaExtractorPluginHelper.h
new file mode 100644
index 0000000..c817b30
--- /dev/null
+++ b/include/media/MediaExtractorPluginHelper.h
@@ -0,0 +1,315 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef MEDIA_EXTRACTOR_PLUGIN_HELPER_H_
+
+#define MEDIA_EXTRACTOR_PLUGIN_HELPER_H_
+
+#include <arpa/inet.h>
+#include <stdio.h>
+#include <vector>
+
+#include <utils/Errors.h>
+#include <utils/Log.h>
+#include <utils/RefBase.h>
+#include <media/MediaExtractorPluginApi.h>
+
+namespace android {
+
+class DataSourceBase;
+class MetaDataBase;
+struct MediaTrack;
+
+// extractor plugins can derive from this class which looks remarkably
+// like MediaExtractor and can be easily wrapped in the required C API
+class MediaExtractorPluginHelper
+{
+public:
+    virtual ~MediaExtractorPluginHelper() {}
+    virtual size_t countTracks() = 0;
+    virtual MediaTrack *getTrack(size_t index) = 0;
+
+    enum GetTrackMetaDataFlags {
+        kIncludeExtensiveMetaData = 1
+    };
+    virtual status_t getTrackMetaData(
+            MetaDataBase& meta,
+            size_t index, uint32_t flags = 0) = 0;
+
+    // Return container specific meta-data. The default implementation
+    // returns an empty metadata object.
+    virtual status_t getMetaData(MetaDataBase& meta) = 0;
+
+    enum Flags {
+        CAN_SEEK_BACKWARD  = 1,  // the "seek 10secs back button"
+        CAN_SEEK_FORWARD   = 2,  // the "seek 10secs forward button"
+        CAN_PAUSE          = 4,
+        CAN_SEEK           = 8,  // the "seek bar"
+    };
+
+    // If subclasses do _not_ override this, the default is
+    // CAN_SEEK_BACKWARD | CAN_SEEK_FORWARD | CAN_SEEK | CAN_PAUSE
+    virtual uint32_t flags() const {
+        return CAN_SEEK_BACKWARD | CAN_SEEK_FORWARD | CAN_SEEK | CAN_PAUSE;
+    };
+
+    virtual status_t setMediaCas(const uint8_t* /*casToken*/, size_t /*size*/) {
+        return INVALID_OPERATION;
+    }
+
+    virtual const char * name() { return "<unspecified>"; }
+
+protected:
+    MediaExtractorPluginHelper() {}
+
+private:
+    MediaExtractorPluginHelper(const MediaExtractorPluginHelper &);
+    MediaExtractorPluginHelper &operator=(const MediaExtractorPluginHelper &);
+};
+
+inline CMediaExtractor *wrap(MediaExtractorPluginHelper *extractor) {
+    CMediaExtractor *wrapper = (CMediaExtractor*) malloc(sizeof(CMediaExtractor));
+    wrapper->data = extractor;
+    wrapper->free = [](void *data) -> void {
+        delete (MediaExtractorPluginHelper*)(data);
+    };
+    wrapper->countTracks = [](void *data) -> size_t {
+        return ((MediaExtractorPluginHelper*)data)->countTracks();
+    };
+    wrapper->getTrack = [](void *data, size_t index) -> MediaTrack* {
+        return ((MediaExtractorPluginHelper*)data)->getTrack(index);
+    };
+    wrapper->getTrackMetaData = [](
+            void *data,
+            MetaDataBase& meta,
+            size_t index, uint32_t flags) -> status_t {
+        return ((MediaExtractorPluginHelper*)data)->getTrackMetaData(meta, index, flags);
+    };
+    wrapper->getMetaData = [](
+            void *data,
+            MetaDataBase& meta) -> status_t {
+        return ((MediaExtractorPluginHelper*)data)->getMetaData(meta);
+    };
+    wrapper->flags = [](
+            void *data) -> uint32_t {
+        return ((MediaExtractorPluginHelper*)data)->flags();
+    };
+    wrapper->setMediaCas = [](
+            void *data, const uint8_t *casToken, size_t size) -> status_t {
+        return ((MediaExtractorPluginHelper*)data)->setMediaCas(casToken, size);
+    };
+    wrapper->name = [](
+            void *data) -> const char * {
+        return ((MediaExtractorPluginHelper*)data)->name();
+    };
+    return wrapper;
+}
+
+/* adds some convience methods */
+class DataSourceHelper {
+public:
+    explicit DataSourceHelper(CDataSource *csource) {
+        mSource = csource;
+    }
+
+    explicit DataSourceHelper(DataSourceHelper *source) {
+        mSource = source->mSource;
+    }
+
+    ssize_t readAt(off64_t offset, void *data, size_t size) {
+        return mSource->readAt(mSource->handle, offset, data, size);
+    }
+
+    status_t getSize(off64_t *size) {
+        return mSource->getSize(mSource->handle, size);
+    }
+
+    bool getUri(char *uriString, size_t bufferSize) {
+        return mSource->getUri(mSource->handle, uriString, bufferSize);
+    }
+
+    uint32_t flags() {
+        return mSource->flags(mSource->handle);
+    }
+
+    // Convenience methods:
+    bool getUInt16(off64_t offset, uint16_t *x) {
+        *x = 0;
+
+        uint8_t byte[2];
+        if (readAt(offset, byte, 2) != 2) {
+            return false;
+        }
+
+        *x = (byte[0] << 8) | byte[1];
+
+        return true;
+    }
+
+    // 3 byte int, returned as a 32-bit int
+    bool getUInt24(off64_t offset, uint32_t *x) {
+        *x = 0;
+
+        uint8_t byte[3];
+        if (readAt(offset, byte, 3) != 3) {
+            return false;
+        }
+
+        *x = (byte[0] << 16) | (byte[1] << 8) | byte[2];
+
+        return true;
+    }
+
+    bool getUInt32(off64_t offset, uint32_t *x) {
+        *x = 0;
+
+        uint32_t tmp;
+        if (readAt(offset, &tmp, 4) != 4) {
+            return false;
+        }
+
+        *x = ntohl(tmp);
+
+        return true;
+    }
+
+    bool getUInt64(off64_t offset, uint64_t *x) {
+        *x = 0;
+
+        uint64_t tmp;
+        if (readAt(offset, &tmp, 8) != 8) {
+            return false;
+        }
+
+        *x = ((uint64_t)ntohl(tmp & 0xffffffff) << 32) | ntohl(tmp >> 32);
+
+        return true;
+    }
+
+    // read either int<N> or int<2N> into a uint<2N>_t, size is the int size in bytes.
+    bool getUInt16Var(off64_t offset, uint16_t *x, size_t size) {
+        if (size == 2) {
+            return getUInt16(offset, x);
+        }
+        if (size == 1) {
+            uint8_t tmp;
+            if (readAt(offset, &tmp, 1) == 1) {
+                *x = tmp;
+                return true;
+            }
+        }
+        return false;
+    }
+
+    bool getUInt32Var(off64_t offset, uint32_t *x, size_t size) {
+        if (size == 4) {
+            return getUInt32(offset, x);
+        }
+        if (size == 2) {
+            uint16_t tmp;
+            if (getUInt16(offset, &tmp)) {
+                *x = tmp;
+                return true;
+            }
+        }
+        return false;
+    }
+
+    bool getUInt64Var(off64_t offset, uint64_t *x, size_t size) {
+        if (size == 8) {
+            return getUInt64(offset, x);
+        }
+        if (size == 4) {
+            uint32_t tmp;
+            if (getUInt32(offset, &tmp)) {
+                *x = tmp;
+                return true;
+            }
+        }
+        return false;
+    }
+
+protected:
+    CDataSource *mSource;
+};
+
+
+
+// helpers to create a media_uuid_t from a string literal
+
+// purposely not defined anywhere so that this will fail to link if
+// expressions below are not evaluated at compile time
+int invalid_uuid_string(const char *);
+
+template <typename T, size_t N>
+constexpr uint8_t _digitAt_(const T (&s)[N], const size_t n) {
+    return s[n] >= '0' && s[n] <= '9' ? s[n] - '0'
+            : s[n] >= 'a' && s[n] <= 'f' ? s[n] - 'a' + 10
+                    : s[n] >= 'A' && s[n] <= 'F' ? s[n] - 'A' + 10
+                            : invalid_uuid_string("uuid: bad digits");
+}
+
+template <typename T, size_t N>
+constexpr uint8_t _hexByteAt_(const T (&s)[N], size_t n) {
+    return (_digitAt_(s, n) << 4) + _digitAt_(s, n + 1);
+}
+
+constexpr bool _assertIsDash_(char c) {
+    return c == '-' ? true : invalid_uuid_string("Wrong format");
+}
+
+template <size_t N>
+constexpr media_uuid_t constUUID(const char (&s) [N]) {
+    static_assert(N == 37, "uuid: wrong length");
+    return
+            _assertIsDash_(s[8]),
+            _assertIsDash_(s[13]),
+            _assertIsDash_(s[18]),
+            _assertIsDash_(s[23]),
+            media_uuid_t {{
+                _hexByteAt_(s, 0),
+                _hexByteAt_(s, 2),
+                _hexByteAt_(s, 4),
+                _hexByteAt_(s, 6),
+                _hexByteAt_(s, 9),
+                _hexByteAt_(s, 11),
+                _hexByteAt_(s, 14),
+                _hexByteAt_(s, 16),
+                _hexByteAt_(s, 19),
+                _hexByteAt_(s, 21),
+                _hexByteAt_(s, 24),
+                _hexByteAt_(s, 26),
+                _hexByteAt_(s, 28),
+                _hexByteAt_(s, 30),
+                _hexByteAt_(s, 32),
+                _hexByteAt_(s, 34),
+            }};
+}
+// Convenience macro to create a media_uuid_t from a string literal, which should
+// be formatted as "12345678-1234-1234-1234-123456789abc", as generated by
+// e.g. https://www.uuidgenerator.net/ or the 'uuidgen' linux command.
+// Hex digits may be upper or lower case.
+//
+// The macro call is otherwise equivalent to specifying the structure directly
+// (e.g. UUID("7d613858-5837-4a38-84c5-332d1cddee27") is the same as
+//       {{0x7d, 0x61, 0x38, 0x58, 0x58, 0x37, 0x4a, 0x38,
+//         0x84, 0xc5, 0x33, 0x2d, 0x1c, 0xdd, 0xee, 0x27}})
+
+#define UUID(str) []{ constexpr media_uuid_t uuid = constUUID(str); return uuid; }()
+
+}  // namespace android
+
+#endif  // MEDIA_EXTRACTOR_PLUGIN_HELPER_H_
diff --git a/media/audioserver/Android.mk b/media/audioserver/Android.mk
index 70c281a..8a97299 100644
--- a/media/audioserver/Android.mk
+++ b/media/audioserver/Android.mk
@@ -21,6 +21,9 @@
 	libsoundtriggerservice \
 	libutils
 
+LOCAL_STATIC_LIBRARIES := \
+	libjsoncpp
+
 # TODO oboeservice is the old folder name for aaudioservice. It will be changed.
 LOCAL_C_INCLUDES := \
 	frameworks/av/services/audioflinger \
diff --git a/media/extractors/aac/AACExtractor.cpp b/media/extractors/aac/AACExtractor.cpp
index 9fc5a76..955a588 100644
--- a/media/extractors/aac/AACExtractor.cpp
+++ b/media/extractors/aac/AACExtractor.cpp
@@ -19,7 +19,7 @@
 #include <utils/Log.h>
 
 #include "AACExtractor.h"
-#include <media/DataSourceBase.h>
+#include <media/MediaExtractorPluginApi.h>
 #include <media/MediaTrack.h>
 #include <media/stagefright/foundation/ABuffer.h>
 #include <media/stagefright/foundation/AMessage.h>
@@ -36,7 +36,7 @@
 class AACSource : public MediaTrack {
 public:
     AACSource(
-            DataSourceBase *source,
+            DataSourceHelper *source,
             MetaDataBase &meta,
             const Vector<uint64_t> &offset_vector,
             int64_t frame_duration_us);
@@ -54,7 +54,7 @@
 
 private:
     static const size_t kMaxFrameSize;
-    DataSourceBase *mDataSource;
+    DataSourceHelper *mDataSource;
     MetaDataBase mMeta;
 
     off64_t mOffset;
@@ -92,7 +92,7 @@
 // The returned value is the AAC frame size with the ADTS header length (regardless of
 //     the presence of the CRC).
 // If headerSize is non-NULL, it will be used to return the size of the header of this ADTS frame.
-static size_t getAdtsFrameLength(DataSourceBase *source, off64_t offset, size_t* headerSize) {
+static size_t getAdtsFrameLength(DataSourceHelper *source, off64_t offset, size_t* headerSize) {
 
     const size_t kAdtsHeaderLengthNoCrc = 7;
     const size_t kAdtsHeaderLengthWithCrc = 9;
@@ -133,7 +133,7 @@
 }
 
 AACExtractor::AACExtractor(
-        DataSourceBase *source, off64_t offset)
+        DataSourceHelper *source, off64_t offset)
     : mDataSource(source),
       mInitCheck(NO_INIT),
       mFrameDurationUs(0) {
@@ -219,7 +219,7 @@
 const size_t AACSource::kMaxFrameSize = 8192;
 
 AACSource::AACSource(
-        DataSourceBase *source,
+        DataSourceHelper *source,
         MetaDataBase &meta,
         const Vector<uint64_t> &offset_vector,
         int64_t frame_duration_us)
@@ -323,21 +323,22 @@
 
 ////////////////////////////////////////////////////////////////////////////////
 
-static MediaExtractor* CreateExtractor(
-        DataSourceBase *source,
+static CMediaExtractor* CreateExtractor(
+        CDataSource *source,
         void *meta) {
     off64_t offset = *static_cast<off64_t*>(meta);
-    return new AACExtractor(source, offset);
+    return wrap(new AACExtractor(new DataSourceHelper(source), offset));
 }
 
-static MediaExtractor::CreatorFunc Sniff(
-        DataSourceBase *source, float *confidence, void **meta,
-        MediaExtractor::FreeMetaFunc *freeMeta) {
+static CreatorFunc Sniff(
+        CDataSource *source, float *confidence, void **meta,
+        FreeMetaFunc *freeMeta) {
     off64_t pos = 0;
 
+    DataSourceHelper helper(source);
     for (;;) {
         uint8_t id3header[10];
-        if (source->readAt(pos, id3header, sizeof(id3header))
+        if (helper.readAt(pos, id3header, sizeof(id3header))
                 < (ssize_t)sizeof(id3header)) {
             return NULL;
         }
@@ -364,7 +365,7 @@
 
     uint8_t header[2];
 
-    if (source->readAt(pos, &header, 2) != 2) {
+    if (helper.readAt(pos, &header, 2) != 2) {
         return NULL;
     }
 
@@ -387,9 +388,9 @@
 extern "C" {
 // This is the only symbol that needs to be exported
 __attribute__ ((visibility ("default")))
-MediaExtractor::ExtractorDef GETEXTRACTORDEF() {
+ExtractorDef GETEXTRACTORDEF() {
     return {
-        MediaExtractor::EXTRACTORDEF_VERSION,
+        EXTRACTORDEF_VERSION,
         UUID("4fd80eae-03d2-4d72-9eb9-48fa6bb54613"),
         1, // version
         "AAC Extractor",
diff --git a/media/extractors/aac/AACExtractor.h b/media/extractors/aac/AACExtractor.h
index 9dadbed..3f20461 100644
--- a/media/extractors/aac/AACExtractor.h
+++ b/media/extractors/aac/AACExtractor.h
@@ -18,7 +18,8 @@
 
 #define AAC_EXTRACTOR_H_
 
-#include <media/MediaExtractor.h>
+#include <media/MediaExtractorPluginApi.h>
+#include <media/MediaExtractorPluginHelper.h>
 #include <media/stagefright/MetaDataBase.h>
 
 #include <utils/Vector.h>
@@ -28,9 +29,9 @@
 struct AMessage;
 class String8;
 
-class AACExtractor : public MediaExtractor {
+class AACExtractor : public MediaExtractorPluginHelper {
 public:
-    AACExtractor(DataSourceBase *source, off64_t offset);
+    AACExtractor(DataSourceHelper *source, off64_t offset);
 
     virtual size_t countTracks();
     virtual MediaTrack *getTrack(size_t index);
@@ -43,7 +44,7 @@
     virtual ~AACExtractor();
 
 private:
-    DataSourceBase *mDataSource;
+    DataSourceHelper *mDataSource;
     MetaDataBase mMeta;
     status_t mInitCheck;
 
@@ -55,7 +56,7 @@
 };
 
 bool SniffAAC(
-        DataSourceBase *source, String8 *mimeType, float *confidence, off64_t *offset);
+        DataSourceHelper *source, String8 *mimeType, float *confidence, off64_t *offset);
 
 }  // namespace android
 
diff --git a/media/extractors/amr/AMRExtractor.cpp b/media/extractors/amr/AMRExtractor.cpp
index f56d5ef..e109fb3 100644
--- a/media/extractors/amr/AMRExtractor.cpp
+++ b/media/extractors/amr/AMRExtractor.cpp
@@ -20,7 +20,6 @@
 
 #include "AMRExtractor.h"
 
-#include <media/DataSourceBase.h>
 #include <media/MediaTrack.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/MediaBufferGroup.h>
@@ -34,7 +33,7 @@
 class AMRSource : public MediaTrack {
 public:
     AMRSource(
-            DataSourceBase *source,
+            DataSourceHelper *source,
             MetaDataBase &meta,
             bool isWide,
             const off64_t *offset_table,
@@ -52,7 +51,7 @@
     virtual ~AMRSource();
 
 private:
-    DataSourceBase *mDataSource;
+    DataSourceHelper *mDataSource;
     MetaDataBase mMeta;
     bool mIsWide;
 
@@ -98,7 +97,7 @@
     return frameSize;
 }
 
-static status_t getFrameSizeByOffset(DataSourceBase *source,
+static status_t getFrameSizeByOffset(DataSourceHelper *source,
         off64_t offset, bool isWide, size_t *frameSize) {
     uint8_t header;
     ssize_t count = source->readAt(offset, &header, 1);
@@ -118,7 +117,7 @@
 }
 
 static bool SniffAMR(
-        DataSourceBase *source, bool *isWide, float *confidence) {
+        DataSourceHelper *source, bool *isWide, float *confidence) {
     char header[9];
 
     if (source->readAt(0, header, sizeof(header)) != sizeof(header)) {
@@ -144,7 +143,7 @@
     return false;
 }
 
-AMRExtractor::AMRExtractor(DataSourceBase *source)
+AMRExtractor::AMRExtractor(DataSourceHelper *source)
     : mDataSource(source),
       mInitCheck(NO_INIT),
       mOffsetTableLength(0) {
@@ -192,6 +191,7 @@
 }
 
 AMRExtractor::~AMRExtractor() {
+    delete mDataSource;
 }
 
 status_t AMRExtractor::getMetaData(MetaDataBase &meta) {
@@ -229,7 +229,7 @@
 ////////////////////////////////////////////////////////////////////////////////
 
 AMRSource::AMRSource(
-        DataSourceBase *source, MetaDataBase &meta,
+        DataSourceHelper *source, MetaDataBase &meta,
         bool isWide, const off64_t *offset_table, size_t offset_table_length)
     : mDataSource(source),
       mMeta(meta),
@@ -365,22 +365,23 @@
 extern "C" {
 // This is the only symbol that needs to be exported
 __attribute__ ((visibility ("default")))
-MediaExtractor::ExtractorDef GETEXTRACTORDEF() {
+ExtractorDef GETEXTRACTORDEF() {
     return {
-        MediaExtractor::EXTRACTORDEF_VERSION,
+        EXTRACTORDEF_VERSION,
         UUID("c86639c9-2f31-40ac-a715-fa01b4493aaf"),
         1,
         "AMR Extractor",
         [](
-                DataSourceBase *source,
+                CDataSource *source,
                 float *confidence,
                 void **,
-                MediaExtractor::FreeMetaFunc *) -> MediaExtractor::CreatorFunc {
-            if (SniffAMR(source, nullptr, confidence)) {
+                FreeMetaFunc *) -> CreatorFunc {
+            DataSourceHelper helper(source);
+            if (SniffAMR(&helper, nullptr, confidence)) {
                 return [](
-                        DataSourceBase *source,
-                        void *) -> MediaExtractor* {
-                    return new AMRExtractor(source);};
+                        CDataSource *source,
+                        void *) -> CMediaExtractor* {
+                    return wrap(new AMRExtractor(new DataSourceHelper(source)));};
             }
             return NULL;
         }
diff --git a/media/extractors/amr/AMRExtractor.h b/media/extractors/amr/AMRExtractor.h
index c90b325..499ca67 100644
--- a/media/extractors/amr/AMRExtractor.h
+++ b/media/extractors/amr/AMRExtractor.h
@@ -19,7 +19,8 @@
 #define AMR_EXTRACTOR_H_
 
 #include <utils/Errors.h>
-#include <media/MediaExtractor.h>
+#include <media/MediaExtractorPluginApi.h>
+#include <media/MediaExtractorPluginHelper.h>
 #include <media/stagefright/MetaDataBase.h>
 
 namespace android {
@@ -28,9 +29,9 @@
 class String8;
 #define OFFSET_TABLE_LEN    300
 
-class AMRExtractor : public MediaExtractor {
+class AMRExtractor : public MediaExtractorPluginHelper {
 public:
-    explicit AMRExtractor(DataSourceBase *source);
+    explicit AMRExtractor(DataSourceHelper *source);
 
     virtual size_t countTracks();
     virtual MediaTrack *getTrack(size_t index);
@@ -43,7 +44,7 @@
     virtual ~AMRExtractor();
 
 private:
-    DataSourceBase *mDataSource;
+    DataSourceHelper *mDataSource;
     MetaDataBase mMeta;
     status_t mInitCheck;
     bool mIsWide;
diff --git a/media/extractors/flac/FLACExtractor.cpp b/media/extractors/flac/FLACExtractor.cpp
index e3da259..1efaa0c 100644
--- a/media/extractors/flac/FLACExtractor.cpp
+++ b/media/extractors/flac/FLACExtractor.cpp
@@ -18,11 +18,13 @@
 #define LOG_TAG "FLACExtractor"
 #include <utils/Log.h>
 
+#include <stdint.h>
+
 #include "FLACExtractor.h"
 // libFLAC parser
 #include "FLAC/stream_decoder.h"
 
-#include <media/DataSourceBase.h>
+#include <media/MediaExtractorPluginApi.h>
 #include <media/MediaTrack.h>
 #include <media/VorbisComment.h>
 #include <media/stagefright/foundation/ABuffer.h>
@@ -41,7 +43,7 @@
 
 public:
     FLACSource(
-            DataSourceBase *dataSource,
+            DataSourceHelper *dataSource,
             MetaDataBase &meta);
 
     virtual status_t start(MetaDataBase *params);
@@ -55,7 +57,7 @@
     virtual ~FLACSource();
 
 private:
-    DataSourceBase *mDataSource;
+    DataSourceHelper *mDataSource;
     MetaDataBase mTrackMetadata;
     FLACParser *mParser;
     bool mInitCheck;
@@ -77,7 +79,7 @@
     };
 
     explicit FLACParser(
-        DataSourceBase *dataSource,
+        DataSourceHelper *dataSource,
         // If metadata pointers aren't provided, we don't fill them
         MetaDataBase *fileMetadata = 0,
         MetaDataBase *trackMetadata = 0);
@@ -116,7 +118,7 @@
     }
 
 private:
-    DataSourceBase *mDataSource;
+    DataSourceHelper *mDataSource;
     MetaDataBase *mFileMetadata;
     MetaDataBase *mTrackMetadata;
     bool mInitCheck;
@@ -124,7 +126,7 @@
     // media buffers
     size_t mMaxBufferSize;
     MediaBufferGroup *mGroup;
-    void (*mCopy)(short *dst, const int * src[kMaxChannels], unsigned nSamples, unsigned nChannels);
+    void (*mCopy)(int16_t *dst, const int * src[kMaxChannels], unsigned nSamples, unsigned nChannels);
 
     // handle to underlying libFLAC parser
     FLAC__StreamDecoder *mDecoder;
@@ -383,7 +385,7 @@
 // These are candidates for optimization if needed.
 
 static void copyMono8(
-        short *dst,
+        int16_t *dst,
         const int * src[FLACParser::kMaxChannels],
         unsigned nSamples,
         unsigned /* nChannels */) {
@@ -393,7 +395,7 @@
 }
 
 static void copyStereo8(
-        short *dst,
+        int16_t *dst,
         const int * src[FLACParser::kMaxChannels],
         unsigned nSamples,
         unsigned /* nChannels */) {
@@ -403,7 +405,7 @@
     }
 }
 
-static void copyMultiCh8(short *dst, const int * src[FLACParser::kMaxChannels], unsigned nSamples, unsigned nChannels)
+static void copyMultiCh8(int16_t *dst, const int * src[FLACParser::kMaxChannels], unsigned nSamples, unsigned nChannels)
 {
     for (unsigned i = 0; i < nSamples; ++i) {
         for (unsigned c = 0; c < nChannels; ++c) {
@@ -413,7 +415,7 @@
 }
 
 static void copyMono16(
-        short *dst,
+        int16_t *dst,
         const int * src[FLACParser::kMaxChannels],
         unsigned nSamples,
         unsigned /* nChannels */) {
@@ -423,7 +425,7 @@
 }
 
 static void copyStereo16(
-        short *dst,
+        int16_t *dst,
         const int * src[FLACParser::kMaxChannels],
         unsigned nSamples,
         unsigned /* nChannels */) {
@@ -433,7 +435,7 @@
     }
 }
 
-static void copyMultiCh16(short *dst, const int * src[FLACParser::kMaxChannels], unsigned nSamples, unsigned nChannels)
+static void copyMultiCh16(int16_t *dst, const int * src[FLACParser::kMaxChannels], unsigned nSamples, unsigned nChannels)
 {
     for (unsigned i = 0; i < nSamples; ++i) {
         for (unsigned c = 0; c < nChannels; ++c) {
@@ -445,7 +447,7 @@
 // 24-bit versions should do dithering or noise-shaping, here or in AudioFlinger
 
 static void copyMono24(
-        short *dst,
+        int16_t *dst,
         const int * src[FLACParser::kMaxChannels],
         unsigned nSamples,
         unsigned /* nChannels */) {
@@ -455,7 +457,7 @@
 }
 
 static void copyStereo24(
-        short *dst,
+        int16_t *dst,
         const int * src[FLACParser::kMaxChannels],
         unsigned nSamples,
         unsigned /* nChannels */) {
@@ -465,7 +467,7 @@
     }
 }
 
-static void copyMultiCh24(short *dst, const int * src[FLACParser::kMaxChannels], unsigned nSamples, unsigned nChannels)
+static void copyMultiCh24(int16_t *dst, const int * src[FLACParser::kMaxChannels], unsigned nSamples, unsigned nChannels)
 {
     for (unsigned i = 0; i < nSamples; ++i) {
         for (unsigned c = 0; c < nChannels; ++c) {
@@ -475,7 +477,7 @@
 }
 
 static void copyTrespass(
-        short * /* dst */,
+        int16_t * /* dst */,
         const int *[FLACParser::kMaxChannels] /* src */,
         unsigned /* nSamples */,
         unsigned /* nChannels */) {
@@ -485,7 +487,7 @@
 // FLACParser
 
 FLACParser::FLACParser(
-        DataSourceBase *dataSource,
+        DataSourceHelper *dataSource,
         MetaDataBase *fileMetadata,
         MetaDataBase *trackMetadata)
     : mDataSource(dataSource),
@@ -592,7 +594,7 @@
         static const struct {
             unsigned mChannels;
             unsigned mBitsPerSample;
-            void (*mCopy)(short *dst, const int * src[kMaxChannels], unsigned nSamples, unsigned nChannels);
+            void (*mCopy)(int16_t *dst, const int * src[kMaxChannels], unsigned nSamples, unsigned nChannels);
         } table[] = {
             { 1,  8, copyMono8    },
             { 2,  8, copyStereo8  },
@@ -635,7 +637,7 @@
 {
     CHECK(mGroup == NULL);
     mGroup = new MediaBufferGroup;
-    mMaxBufferSize = getMaxBlockSize() * getChannels() * sizeof(short);
+    mMaxBufferSize = getMaxBlockSize() * getChannels() * sizeof(int16_t);
     mGroup->add_buffer(MediaBufferBase::Create(mMaxBufferSize));
 }
 
@@ -688,9 +690,9 @@
     if (err != OK) {
         return NULL;
     }
-    size_t bufferSize = blocksize * getChannels() * sizeof(short);
+    size_t bufferSize = blocksize * getChannels() * sizeof(int16_t);
     CHECK(bufferSize <= mMaxBufferSize);
-    short *data = (short *) buffer->data();
+    int16_t *data = (int16_t *) buffer->data();
     buffer->set_range(0, bufferSize);
     // copy PCM from FLAC write buffer to our media buffer, with interleaving
     (*mCopy)(data, mWriteBuffer, blocksize, getChannels());
@@ -706,7 +708,7 @@
 // FLACsource
 
 FLACSource::FLACSource(
-        DataSourceBase *dataSource,
+        DataSourceHelper *dataSource,
         MetaDataBase &trackMetadata)
     : mDataSource(dataSource),
       mTrackMetadata(trackMetadata),
@@ -787,7 +789,7 @@
 // FLACExtractor
 
 FLACExtractor::FLACExtractor(
-        DataSourceBase *dataSource)
+        DataSourceHelper *dataSource)
     : mDataSource(dataSource),
       mParser(nullptr),
       mInitCheck(false)
@@ -802,6 +804,7 @@
 {
     ALOGV("~FLACExtractor::FLACExtractor");
     delete mParser;
+    delete mDataSource;
 }
 
 size_t FLACExtractor::countTracks()
@@ -835,7 +838,7 @@
 
 // Sniffer
 
-bool SniffFLAC(DataSourceBase *source, float *confidence)
+bool SniffFLAC(DataSourceHelper *source, float *confidence)
 {
     // first 4 is the signature word
     // second 4 is the sizeof STREAMINFO
@@ -857,22 +860,23 @@
 extern "C" {
 // This is the only symbol that needs to be exported
 __attribute__ ((visibility ("default")))
-MediaExtractor::ExtractorDef GETEXTRACTORDEF() {
+ExtractorDef GETEXTRACTORDEF() {
     return {
-        MediaExtractor::EXTRACTORDEF_VERSION,
+        EXTRACTORDEF_VERSION,
             UUID("1364b048-cc45-4fda-9934-327d0ebf9829"),
             1,
             "FLAC Extractor",
             [](
-                    DataSourceBase *source,
+                    CDataSource *source,
                     float *confidence,
                     void **,
-                    MediaExtractor::FreeMetaFunc *) -> MediaExtractor::CreatorFunc {
-                if (SniffFLAC(source, confidence)) {
+                    FreeMetaFunc *) -> CreatorFunc {
+                DataSourceHelper helper(source);
+                if (SniffFLAC(&helper, confidence)) {
                     return [](
-                            DataSourceBase *source,
-                            void *) -> MediaExtractor* {
-                        return new FLACExtractor(source);};
+                            CDataSource *source,
+                            void *) -> CMediaExtractor* {
+                        return wrap(new FLACExtractor(new DataSourceHelper(source)));};
                 }
                 return NULL;
             }
diff --git a/media/extractors/flac/FLACExtractor.h b/media/extractors/flac/FLACExtractor.h
index 7fb6ec6..1ddff43 100644
--- a/media/extractors/flac/FLACExtractor.h
+++ b/media/extractors/flac/FLACExtractor.h
@@ -18,7 +18,8 @@
 #define FLAC_EXTRACTOR_H_
 
 #include <media/DataSourceBase.h>
-#include <media/MediaExtractor.h>
+#include <media/MediaExtractorPluginApi.h>
+#include <media/MediaExtractorPluginHelper.h>
 #include <media/stagefright/MetaDataBase.h>
 #include <utils/String8.h>
 
@@ -26,10 +27,10 @@
 
 class FLACParser;
 
-class FLACExtractor : public MediaExtractor {
+class FLACExtractor : public MediaExtractorPluginHelper {
 
 public:
-    explicit FLACExtractor(DataSourceBase *source);
+    explicit FLACExtractor(DataSourceHelper *source);
 
     virtual size_t countTracks();
     virtual MediaTrack *getTrack(size_t index);
@@ -42,7 +43,7 @@
     virtual ~FLACExtractor();
 
 private:
-    DataSourceBase *mDataSource;
+    DataSourceHelper *mDataSource;
     FLACParser *mParser;
     status_t mInitCheck;
     MetaDataBase mFileMetadata;
@@ -55,8 +56,6 @@
 
 };
 
-bool SniffFLAC(DataSourceBase *source, float *confidence);
-
 }  // namespace android
 
 #endif  // FLAC_EXTRACTOR_H_
diff --git a/media/extractors/midi/MidiExtractor.cpp b/media/extractors/midi/MidiExtractor.cpp
index a30b6f8..233033e 100644
--- a/media/extractors/midi/MidiExtractor.cpp
+++ b/media/extractors/midi/MidiExtractor.cpp
@@ -142,7 +142,7 @@
 
 // MidiEngine
 
-MidiEngine::MidiEngine(DataSourceBase *dataSource,
+MidiEngine::MidiEngine(CDataSource *dataSource,
         MetaDataBase *fileMetadata,
         MetaDataBase *trackMetadata) :
             mGroup(NULL),
@@ -263,7 +263,7 @@
 // MidiExtractor
 
 MidiExtractor::MidiExtractor(
-        DataSourceBase *dataSource)
+        CDataSource *dataSource)
     : mDataSource(dataSource),
       mInitCheck(false)
 {
@@ -310,7 +310,7 @@
 
 // Sniffer
 
-bool SniffMidi(DataSourceBase *source, float *confidence)
+bool SniffMidi(CDataSource *source, float *confidence)
 {
     MidiEngine p(source, NULL, NULL);
     if (p.initCheck() == OK) {
@@ -326,22 +326,22 @@
 extern "C" {
 // This is the only symbol that needs to be exported
 __attribute__ ((visibility ("default")))
-MediaExtractor::ExtractorDef GETEXTRACTORDEF() {
+ExtractorDef GETEXTRACTORDEF() {
     return {
-        MediaExtractor::EXTRACTORDEF_VERSION,
+        EXTRACTORDEF_VERSION,
         UUID("ef6cca0a-f8a2-43e6-ba5f-dfcd7c9a7ef2"),
         1,
         "MIDI Extractor",
         [](
-                DataSourceBase *source,
+                CDataSource *source,
                 float *confidence,
                 void **,
-                MediaExtractor::FreeMetaFunc *) -> MediaExtractor::CreatorFunc {
+                FreeMetaFunc *) -> CreatorFunc {
             if (SniffMidi(source, confidence)) {
                 return [](
-                        DataSourceBase *source,
-                        void *) -> MediaExtractor* {
-                    return new MidiExtractor(source);};
+                        CDataSource *source,
+                        void *) -> CMediaExtractor* {
+                    return wrap(new MidiExtractor(source));};
             }
             return NULL;
         }
diff --git a/media/extractors/midi/MidiExtractor.h b/media/extractors/midi/MidiExtractor.h
index 244dd0f..fbbe93e 100644
--- a/media/extractors/midi/MidiExtractor.h
+++ b/media/extractors/midi/MidiExtractor.h
@@ -18,7 +18,8 @@
 #define MIDI_EXTRACTOR_H_
 
 #include <media/DataSourceBase.h>
-#include <media/MediaExtractor.h>
+#include <media/MediaExtractorPluginApi.h>
+#include <media/MediaExtractorPluginHelper.h>
 #include <media/stagefright/MediaBufferBase.h>
 #include <media/stagefright/MediaBufferGroup.h>
 #include <media/stagefright/MetaDataBase.h>
@@ -30,7 +31,7 @@
 
 class MidiEngine {
 public:
-    explicit MidiEngine(DataSourceBase *dataSource,
+    explicit MidiEngine(CDataSource *dataSource,
             MetaDataBase *fileMetadata,
             MetaDataBase *trackMetadata);
     ~MidiEngine();
@@ -50,10 +51,10 @@
     bool mIsInitialized;
 };
 
-class MidiExtractor : public MediaExtractor {
+class MidiExtractor : public MediaExtractorPluginHelper {
 
 public:
-    explicit MidiExtractor(DataSourceBase *source);
+    explicit MidiExtractor(CDataSource *source);
 
     virtual size_t countTracks();
     virtual MediaTrack *getTrack(size_t index);
@@ -66,7 +67,7 @@
     virtual ~MidiExtractor();
 
 private:
-    DataSourceBase *mDataSource;
+    CDataSource *mDataSource;
     status_t mInitCheck;
     MetaDataBase mFileMetadata;
 
@@ -88,7 +89,7 @@
 
 };
 
-bool SniffMidi(DataSourceBase *source, float *confidence);
+bool SniffMidi(CDataSource *source, float *confidence);
 
 }  // namespace android
 
diff --git a/media/extractors/mkv/MatroskaExtractor.cpp b/media/extractors/mkv/MatroskaExtractor.cpp
index d657582..a387970 100644
--- a/media/extractors/mkv/MatroskaExtractor.cpp
+++ b/media/extractors/mkv/MatroskaExtractor.cpp
@@ -44,7 +44,7 @@
 namespace android {
 
 struct DataSourceBaseReader : public mkvparser::IMkvReader {
-    explicit DataSourceBaseReader(DataSourceBase *source)
+    explicit DataSourceBaseReader(DataSourceHelper *source)
         : mSource(source) {
     }
 
@@ -86,7 +86,7 @@
     }
 
 private:
-    DataSourceBase *mSource;
+    DataSourceHelper *mSource;
 
     DataSourceBaseReader(const DataSourceBaseReader &);
     DataSourceBaseReader &operator=(const DataSourceBaseReader &);
@@ -921,7 +921,7 @@
 
 ////////////////////////////////////////////////////////////////////////////////
 
-MatroskaExtractor::MatroskaExtractor(DataSourceBase *source)
+MatroskaExtractor::MatroskaExtractor(DataSourceHelper *source)
     : mDataSource(source),
       mReader(new DataSourceBaseReader(mDataSource)),
       mSegment(NULL),
@@ -994,6 +994,8 @@
 
     delete mReader;
     mReader = NULL;
+
+    delete mDataSource;
 }
 
 size_t MatroskaExtractor::countTracks() {
@@ -1621,7 +1623,7 @@
 }
 
 bool SniffMatroska(
-        DataSourceBase *source, float *confidence) {
+        DataSourceHelper *source, float *confidence) {
     DataSourceBaseReader reader(source);
     mkvparser::EBMLHeader ebmlHeader;
     long long pos;
@@ -1638,22 +1640,23 @@
 extern "C" {
 // This is the only symbol that needs to be exported
 __attribute__ ((visibility ("default")))
-MediaExtractor::ExtractorDef GETEXTRACTORDEF() {
+ExtractorDef GETEXTRACTORDEF() {
     return {
-        MediaExtractor::EXTRACTORDEF_VERSION,
+        EXTRACTORDEF_VERSION,
         UUID("abbedd92-38c4-4904-a4c1-b3f45f899980"),
         1,
         "Matroska Extractor",
         [](
-                DataSourceBase *source,
+                CDataSource *source,
                 float *confidence,
                 void **,
-                MediaExtractor::FreeMetaFunc *) -> MediaExtractor::CreatorFunc {
-            if (SniffMatroska(source, confidence)) {
+                FreeMetaFunc *) -> CreatorFunc {
+            DataSourceHelper helper(source);
+            if (SniffMatroska(&helper, confidence)) {
                 return [](
-                        DataSourceBase *source,
-                        void *) -> MediaExtractor* {
-                    return new MatroskaExtractor(source);};
+                        CDataSource *source,
+                        void *) -> CMediaExtractor* {
+                    return wrap(new MatroskaExtractor(new DataSourceHelper(source)));};
             }
             return NULL;
         }
diff --git a/media/extractors/mkv/MatroskaExtractor.h b/media/extractors/mkv/MatroskaExtractor.h
index 3568ea1..2c6ca85 100644
--- a/media/extractors/mkv/MatroskaExtractor.h
+++ b/media/extractors/mkv/MatroskaExtractor.h
@@ -20,7 +20,8 @@
 
 #include "mkvparser/mkvparser.h"
 
-#include <media/MediaExtractor.h>
+#include <media/MediaExtractorPluginApi.h>
+#include <media/MediaExtractorPluginHelper.h>
 #include <media/stagefright/MetaDataBase.h>
 #include <utils/Vector.h>
 #include <utils/threads.h>
@@ -34,8 +35,8 @@
 struct DataSourceBaseReader;
 struct MatroskaSource;
 
-struct MatroskaExtractor : public MediaExtractor {
-    explicit MatroskaExtractor(DataSourceBase *source);
+struct MatroskaExtractor : public MediaExtractorPluginHelper {
+    explicit MatroskaExtractor(DataSourceHelper *source);
 
     virtual size_t countTracks();
 
@@ -76,7 +77,7 @@
     Mutex mLock;
     Vector<TrackInfo> mTracks;
 
-    DataSourceBase *mDataSource;
+    DataSourceHelper *mDataSource;
     DataSourceBaseReader *mReader;
     mkvparser::Segment *mSegment;
     bool mExtractedThumbnails;
diff --git a/media/extractors/mp3/MP3Extractor.cpp b/media/extractors/mp3/MP3Extractor.cpp
index 33cff96..a1e5593 100644
--- a/media/extractors/mp3/MP3Extractor.cpp
+++ b/media/extractors/mp3/MP3Extractor.cpp
@@ -24,7 +24,6 @@
 #include "VBRISeeker.h"
 #include "XINGSeeker.h"
 
-#include <media/DataSourceBase.h>
 #include <media/MediaTrack.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/AMessage.h>
@@ -46,7 +45,7 @@
 static const uint32_t kMask = 0xfffe0c00;
 
 static bool Resync(
-        DataSourceBase *source, uint32_t match_header,
+        DataSourceHelper *source, uint32_t match_header,
         off64_t *inout_pos, off64_t *post_id3_pos, uint32_t *out_header) {
     if (post_id3_pos != NULL) {
         *post_id3_pos = 0;
@@ -212,7 +211,7 @@
 class MP3Source : public MediaTrack {
 public:
     MP3Source(
-            MetaDataBase &meta, DataSourceBase *source,
+            MetaDataBase &meta, DataSourceHelper *source,
             off64_t first_frame_pos, uint32_t fixed_header,
             MP3Seeker *seeker);
 
@@ -230,7 +229,7 @@
 private:
     static const size_t kMaxFrameSize;
     MetaDataBase &mMeta;
-    DataSourceBase *mDataSource;
+    DataSourceHelper *mDataSource;
     off64_t mFirstFramePos;
     uint32_t mFixedHeader;
     off64_t mCurrentPos;
@@ -253,7 +252,7 @@
 };
 
 MP3Extractor::MP3Extractor(
-        DataSourceBase *source, Mp3Meta *meta)
+        DataSourceHelper *source, Mp3Meta *meta)
     : mInitCheck(NO_INIT),
       mDataSource(source),
       mFirstFramePos(-1),
@@ -371,7 +370,8 @@
     // Get iTunes-style gapless info if present.
     // When getting the id3 tag, skip the V1 tags to prevent the source cache
     // from being iterated to the end of the file.
-    ID3 id3(mDataSource, true);
+    DataSourceHelper helper(mDataSource);
+    ID3 id3(&helper, true);
     if (id3.isValid()) {
         ID3::Iterator *com = new ID3::Iterator(id3, "COM");
         if (com->done()) {
@@ -404,6 +404,7 @@
 
 MP3Extractor::~MP3Extractor() {
     delete mSeeker;
+    delete mDataSource;
 }
 
 size_t MP3Extractor::countTracks() {
@@ -440,7 +441,7 @@
 // Set our max frame size to the nearest power of 2 above this size (aka, 4kB)
 const size_t MP3Source::kMaxFrameSize = (1 << 12); /* 4096 bytes */
 MP3Source::MP3Source(
-        MetaDataBase &meta, DataSourceBase *source,
+        MetaDataBase &meta, DataSourceHelper *source,
         off64_t first_frame_pos, uint32_t fixed_header,
         MP3Seeker *seeker)
     : mMeta(meta),
@@ -612,7 +613,8 @@
     }
     meta.setCString(kKeyMIMEType, "audio/mpeg");
 
-    ID3 id3(mDataSource);
+    DataSourceHelper helper(mDataSource);
+    ID3 id3(&helper);
 
     if (!id3.isValid()) {
         return OK;
@@ -669,21 +671,22 @@
     return OK;
 }
 
-static MediaExtractor* CreateExtractor(
-        DataSourceBase *source,
+static CMediaExtractor* CreateExtractor(
+        CDataSource *source,
         void *meta) {
     Mp3Meta *metaData = static_cast<Mp3Meta *>(meta);
-    return new MP3Extractor(source, metaData);
+    return wrap(new MP3Extractor(new DataSourceHelper(source), metaData));
 }
 
-static MediaExtractor::CreatorFunc Sniff(
-        DataSourceBase *source, float *confidence, void **meta,
-        MediaExtractor::FreeMetaFunc *freeMeta) {
+static CreatorFunc Sniff(
+        CDataSource *source, float *confidence, void **meta,
+        FreeMetaFunc *freeMeta) {
     off64_t pos = 0;
     off64_t post_id3_pos;
     uint32_t header;
     uint8_t mpeg_header[5];
-    if (source->readAt(0, mpeg_header, sizeof(mpeg_header)) < (ssize_t)sizeof(mpeg_header)) {
+    DataSourceHelper helper(source);
+    if (helper.readAt(0, mpeg_header, sizeof(mpeg_header)) < (ssize_t)sizeof(mpeg_header)) {
         return NULL;
     }
 
@@ -691,7 +694,7 @@
         ALOGV("MPEG1PS container is not supported!");
         return NULL;
     }
-    if (!Resync(source, 0, &pos, &post_id3_pos, &header)) {
+    if (!Resync(&helper, 0, &pos, &post_id3_pos, &header)) {
         return NULL;
     }
 
@@ -710,9 +713,9 @@
 extern "C" {
 // This is the only symbol that needs to be exported
 __attribute__ ((visibility ("default")))
-MediaExtractor::ExtractorDef GETEXTRACTORDEF() {
+ExtractorDef GETEXTRACTORDEF() {
     return {
-        MediaExtractor::EXTRACTORDEF_VERSION,
+        EXTRACTORDEF_VERSION,
         UUID("812a3f6c-c8cf-46de-b529-3774b14103d4"),
         1, // version
         "MP3 Extractor",
diff --git a/media/extractors/mp3/MP3Extractor.h b/media/extractors/mp3/MP3Extractor.h
index 485b0ca..585d9f6 100644
--- a/media/extractors/mp3/MP3Extractor.h
+++ b/media/extractors/mp3/MP3Extractor.h
@@ -19,20 +19,22 @@
 #define MP3_EXTRACTOR_H_
 
 #include <utils/Errors.h>
-#include <media/MediaExtractor.h>
+#include <media/MediaExtractorPluginApi.h>
+#include <media/MediaExtractorPluginHelper.h>
 #include <media/stagefright/MetaDataBase.h>
 
 namespace android {
 
+class DataSourceHelper;
+
 struct AMessage;
-class DataSourceBase;
 struct MP3Seeker;
 class String8;
 struct Mp3Meta;
 
-class MP3Extractor : public MediaExtractor {
+class MP3Extractor : public MediaExtractorPluginHelper {
 public:
-    MP3Extractor(DataSourceBase *source, Mp3Meta *meta);
+    MP3Extractor(DataSourceHelper *source, Mp3Meta *meta);
     ~MP3Extractor();
 
     virtual size_t countTracks();
@@ -45,7 +47,7 @@
 private:
     status_t mInitCheck;
 
-    DataSourceBase *mDataSource;
+    DataSourceHelper *mDataSource;
     off64_t mFirstFramePos;
     MetaDataBase mMeta;
     uint32_t mFixedHeader;
diff --git a/media/extractors/mp3/VBRISeeker.cpp b/media/extractors/mp3/VBRISeeker.cpp
index 523f14c..9eb72a7 100644
--- a/media/extractors/mp3/VBRISeeker.cpp
+++ b/media/extractors/mp3/VBRISeeker.cpp
@@ -27,7 +27,9 @@
 
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/ByteUtils.h>
-#include <media/DataSourceBase.h>
+
+#include <media/MediaExtractorPluginApi.h>
+#include <media/MediaExtractorPluginHelper.h>
 
 namespace android {
 
@@ -37,7 +39,7 @@
 
 // static
 VBRISeeker *VBRISeeker::CreateFromSource(
-        DataSourceBase *source, off64_t post_id3_pos) {
+        DataSourceHelper *source, off64_t post_id3_pos) {
     off64_t pos = post_id3_pos;
 
     uint8_t header[4];
diff --git a/media/extractors/mp3/VBRISeeker.h b/media/extractors/mp3/VBRISeeker.h
index 9213f6e..507899c 100644
--- a/media/extractors/mp3/VBRISeeker.h
+++ b/media/extractors/mp3/VBRISeeker.h
@@ -24,11 +24,11 @@
 
 namespace android {
 
-class DataSourceBase;
+class DataSourceHelper;
 
 struct VBRISeeker : public MP3Seeker {
     static VBRISeeker *CreateFromSource(
-            DataSourceBase *source, off64_t post_id3_pos);
+            DataSourceHelper *source, off64_t post_id3_pos);
 
     virtual bool getDuration(int64_t *durationUs);
     virtual bool getOffsetForTime(int64_t *timeUs, off64_t *pos);
diff --git a/media/extractors/mp3/XINGSeeker.cpp b/media/extractors/mp3/XINGSeeker.cpp
index 01e06ca..9f1fd7a 100644
--- a/media/extractors/mp3/XINGSeeker.cpp
+++ b/media/extractors/mp3/XINGSeeker.cpp
@@ -21,7 +21,9 @@
 #include <media/stagefright/foundation/avc_utils.h>
 
 #include <media/stagefright/foundation/ByteUtils.h>
-#include <media/DataSourceBase.h>
+
+#include <media/MediaExtractorPluginApi.h>
+#include <media/MediaExtractorPluginHelper.h>
 
 namespace android {
 
@@ -79,7 +81,7 @@
 
 // static
 XINGSeeker *XINGSeeker::CreateFromSource(
-        DataSourceBase *source, off64_t first_frame_pos) {
+        DataSourceHelper *source, off64_t first_frame_pos) {
 
     uint8_t buffer[4];
     int offset = first_frame_pos;
diff --git a/media/extractors/mp3/XINGSeeker.h b/media/extractors/mp3/XINGSeeker.h
index 5867eae..9acee38 100644
--- a/media/extractors/mp3/XINGSeeker.h
+++ b/media/extractors/mp3/XINGSeeker.h
@@ -22,11 +22,11 @@
 
 namespace android {
 
-class DataSourceBase;
+class DataSourceHelper;
 
 struct XINGSeeker : public MP3Seeker {
     static XINGSeeker *CreateFromSource(
-            DataSourceBase *source, off64_t first_frame_pos);
+            DataSourceHelper *source, off64_t first_frame_pos);
 
     virtual bool getDuration(int64_t *durationUs);
     virtual bool getOffsetForTime(int64_t *timeUs, off64_t *pos);
diff --git a/media/extractors/mp4/ItemTable.cpp b/media/extractors/mp4/ItemTable.cpp
index be442e6..a61e60a 100644
--- a/media/extractors/mp4/ItemTable.cpp
+++ b/media/extractors/mp4/ItemTable.cpp
@@ -18,7 +18,8 @@
 #define LOG_TAG "ItemTable"
 
 #include <ItemTable.h>
-#include <media/DataSourceBase.h>
+#include <media/MediaExtractorPluginApi.h>
+#include <media/MediaExtractorPluginHelper.h>
 #include <media/stagefright/MetaData.h>
 #include <media/stagefright/MediaErrors.h>
 #include <media/stagefright/foundation/ABuffer.h>
@@ -92,7 +93,7 @@
 
 struct Box {
 protected:
-    Box(DataSourceBase *source, uint32_t type) :
+    Box(DataSourceHelper *source, uint32_t type) :
         mDataSource(source), mType(type) {}
 
     virtual ~Box() {}
@@ -104,14 +105,14 @@
 
     inline uint32_t type() const { return mType; }
 
-    inline DataSourceBase *source() const { return mDataSource; }
+    inline DataSourceHelper *source() const { return mDataSource; }
 
     status_t parseChunk(off64_t *offset);
 
     status_t parseChunks(off64_t offset, size_t size);
 
 private:
-    DataSourceBase *mDataSource;
+    DataSourceHelper *mDataSource;
     uint32_t mType;
 };
 
@@ -186,7 +187,7 @@
 
 struct FullBox : public Box {
 protected:
-    FullBox(DataSourceBase *source, uint32_t type) :
+    FullBox(DataSourceHelper *source, uint32_t type) :
         Box(source, type), mVersion(0), mFlags(0) {}
 
     inline uint8_t version() const { return mVersion; }
@@ -221,7 +222,7 @@
 //
 
 struct PitmBox : public FullBox {
-    PitmBox(DataSourceBase *source) :
+    PitmBox(DataSourceHelper *source) :
         FullBox(source, FOURCC('p', 'i', 't', 'm')) {}
 
     status_t parse(off64_t offset, size_t size, uint32_t *primaryItemId);
@@ -301,7 +302,7 @@
 };
 
 struct IlocBox : public FullBox {
-    IlocBox(DataSourceBase *source, KeyedVector<uint32_t, ItemLoc> *itemLocs) :
+    IlocBox(DataSourceHelper *source, KeyedVector<uint32_t, ItemLoc> *itemLocs) :
         FullBox(source, FOURCC('i', 'l', 'o', 'c')),
         mItemLocs(itemLocs), mHasConstructMethod1(false) {}
 
@@ -471,7 +472,7 @@
 //
 
 struct ItemReference : public Box, public RefBase {
-    ItemReference(DataSourceBase *source, uint32_t type, uint32_t itemIdSize) :
+    ItemReference(DataSourceHelper *source, uint32_t type, uint32_t itemIdSize) :
         Box(source, type), mItemId(0), mRefIdSize(itemIdSize) {}
 
     status_t parse(off64_t offset, size_t size);
@@ -626,7 +627,7 @@
 }
 
 struct IrefBox : public FullBox {
-    IrefBox(DataSourceBase *source, Vector<sp<ItemReference> > *itemRefs) :
+    IrefBox(DataSourceHelper *source, Vector<sp<ItemReference> > *itemRefs) :
         FullBox(source, FOURCC('i', 'r', 'e', 'f')), mRefIdSize(0), mItemRefs(itemRefs) {}
 
     status_t parse(off64_t offset, size_t size);
@@ -688,7 +689,7 @@
 };
 
 struct IspeBox : public FullBox, public ItemProperty {
-    IspeBox(DataSourceBase *source) :
+    IspeBox(DataSourceHelper *source) :
         FullBox(source, FOURCC('i', 's', 'p', 'e')), mWidth(0), mHeight(0) {}
 
     status_t parse(off64_t offset, size_t size) override;
@@ -724,7 +725,7 @@
 }
 
 struct HvccBox : public Box, public ItemProperty {
-    HvccBox(DataSourceBase *source) :
+    HvccBox(DataSourceHelper *source) :
         Box(source, FOURCC('h', 'v', 'c', 'C')) {}
 
     status_t parse(off64_t offset, size_t size) override;
@@ -757,7 +758,7 @@
 }
 
 struct IrotBox : public Box, public ItemProperty {
-    IrotBox(DataSourceBase *source) :
+    IrotBox(DataSourceHelper *source) :
         Box(source, FOURCC('i', 'r', 'o', 't')), mAngle(0) {}
 
     status_t parse(off64_t offset, size_t size) override;
@@ -786,7 +787,7 @@
 }
 
 struct ColrBox : public Box, public ItemProperty {
-    ColrBox(DataSourceBase *source) :
+    ColrBox(DataSourceHelper *source) :
         Box(source, FOURCC('c', 'o', 'l', 'r')) {}
 
     status_t parse(off64_t offset, size_t size) override;
@@ -834,7 +835,7 @@
 }
 
 struct IpmaBox : public FullBox {
-    IpmaBox(DataSourceBase *source, Vector<AssociationEntry> *associations) :
+    IpmaBox(DataSourceHelper *source, Vector<AssociationEntry> *associations) :
         FullBox(source, FOURCC('i', 'p', 'm', 'a')), mAssociations(associations) {}
 
     status_t parse(off64_t offset, size_t size);
@@ -908,7 +909,7 @@
 }
 
 struct IpcoBox : public Box {
-    IpcoBox(DataSourceBase *source, Vector<sp<ItemProperty> > *properties) :
+    IpcoBox(DataSourceHelper *source, Vector<sp<ItemProperty> > *properties) :
         Box(source, FOURCC('i', 'p', 'c', 'o')), mItemProperties(properties) {}
 
     status_t parse(off64_t offset, size_t size);
@@ -965,7 +966,7 @@
 }
 
 struct IprpBox : public Box {
-    IprpBox(DataSourceBase *source,
+    IprpBox(DataSourceHelper *source,
             Vector<sp<ItemProperty> > *properties,
             Vector<AssociationEntry> *associations) :
         Box(source, FOURCC('i', 'p', 'r', 'p')),
@@ -1022,7 +1023,7 @@
 };
 
 struct InfeBox : public FullBox {
-    InfeBox(DataSourceBase *source) :
+    InfeBox(DataSourceHelper *source) :
         FullBox(source, FOURCC('i', 'n', 'f', 'e')) {}
 
     status_t parse(off64_t offset, size_t size, ItemInfo *itemInfo);
@@ -1127,7 +1128,7 @@
 }
 
 struct IinfBox : public FullBox {
-    IinfBox(DataSourceBase *source, Vector<ItemInfo> *itemInfos) :
+    IinfBox(DataSourceHelper *source, Vector<ItemInfo> *itemInfos) :
         FullBox(source, FOURCC('i', 'i', 'n', 'f')),
         mItemInfos(itemInfos), mHasGrids(false) {}
 
@@ -1196,7 +1197,7 @@
 
 //////////////////////////////////////////////////////////////////
 
-ItemTable::ItemTable(DataSourceBase *source)
+ItemTable::ItemTable(DataSourceHelper *source)
     : mDataSource(source),
       mPrimaryItemId(0),
       mIdatOffset(0),
diff --git a/media/extractors/mp4/ItemTable.h b/media/extractors/mp4/ItemTable.h
index 536dcb0..650b3f3 100644
--- a/media/extractors/mp4/ItemTable.h
+++ b/media/extractors/mp4/ItemTable.h
@@ -25,7 +25,7 @@
 
 namespace android {
 
-class DataSourceBase;
+class DataSourceHelper;
 class MetaData;
 
 namespace heif {
@@ -45,7 +45,7 @@
 
 class ItemTable : public RefBase {
 public:
-    explicit ItemTable(DataSourceBase *source);
+    explicit ItemTable(DataSourceHelper *source);
 
     status_t parse(uint32_t type, off64_t offset, size_t size);
 
@@ -62,7 +62,7 @@
     ~ItemTable();
 
 private:
-    DataSourceBase *mDataSource;
+    DataSourceHelper *mDataSource;
 
     KeyedVector<uint32_t, ItemLoc> mItemLocs;
     Vector<ItemInfo> mItemInfos;
diff --git a/media/extractors/mp4/MPEG4Extractor.cpp b/media/extractors/mp4/MPEG4Extractor.cpp
index 8412812..c02d2fb 100644
--- a/media/extractors/mp4/MPEG4Extractor.cpp
+++ b/media/extractors/mp4/MPEG4Extractor.cpp
@@ -32,6 +32,7 @@
 #include "ItemTable.h"
 #include "include/ESDS.h"
 
+#include <media/DataSourceBase.h>
 #include <media/ExtractorUtils.h>
 #include <media/MediaTrack.h>
 #include <media/stagefright/foundation/ABitReader.h>
@@ -68,10 +69,11 @@
 };
 
 class MPEG4Source : public MediaTrack {
+static const size_t  kMaxPcmFrameSize = 8192;
 public:
     // Caller retains ownership of both "dataSource" and "sampleTable".
     MPEG4Source(MetaDataBase &format,
-                DataSourceBase *dataSource,
+                DataSourceHelper *dataSource,
                 int32_t timeScale,
                 const sp<SampleTable> &sampleTable,
                 Vector<SidxEntry> &sidx,
@@ -95,7 +97,7 @@
     Mutex mLock;
 
     MetaDataBase &mFormat;
-    DataSourceBase *mDataSource;
+    DataSourceHelper *mDataSource;
     int32_t mTimescale;
     sp<SampleTable> mSampleTable;
     uint32_t mCurrentSampleIndex;
@@ -127,7 +129,7 @@
     bool mIsAVC;
     bool mIsHEVC;
     bool mIsAC4;
-
+    bool mIsPcm;
     size_t mNALLengthSize;
 
     bool mStarted;
@@ -196,11 +198,10 @@
 // possibly wrapping multiple times to cover all tracks, i.e.
 // Each CachedRangedDataSource caches the sampletable metadata for a single track.
 
-struct CachedRangedDataSource : public DataSourceBase {
-    explicit CachedRangedDataSource(DataSourceBase *source);
+struct CachedRangedDataSource : public DataSourceHelper {
+    explicit CachedRangedDataSource(DataSourceHelper *source);
     virtual ~CachedRangedDataSource();
 
-    virtual status_t initCheck() const;
     virtual ssize_t readAt(off64_t offset, void *data, size_t size);
     virtual status_t getSize(off64_t *size);
     virtual uint32_t flags();
@@ -211,7 +212,7 @@
 private:
     Mutex mLock;
 
-    DataSourceBase *mSource;
+    DataSourceHelper *mSource;
     bool mOwnsDataSource;
     off64_t mCachedOffset;
     size_t mCachedSize;
@@ -223,8 +224,9 @@
     CachedRangedDataSource &operator=(const CachedRangedDataSource &);
 };
 
-CachedRangedDataSource::CachedRangedDataSource(DataSourceBase *source)
-    : mSource(source),
+CachedRangedDataSource::CachedRangedDataSource(DataSourceHelper *source)
+    : DataSourceHelper(source),
+      mSource(source),
       mOwnsDataSource(false),
       mCachedOffset(0),
       mCachedSize(0),
@@ -248,10 +250,6 @@
     mCachedSize = 0;
 }
 
-status_t CachedRangedDataSource::initCheck() const {
-    return mSource->initCheck();
-}
-
 ssize_t CachedRangedDataSource::readAt(off64_t offset, void *data, size_t size) {
     Mutex::Autolock autoLock(mLock);
 
@@ -313,6 +311,9 @@
         case FOURCC('s', 'a', 'w', 'b'):
             return MEDIA_MIMETYPE_AUDIO_AMR_WB;
 
+        case FOURCC('e', 'c', '-', '3'):
+            return MEDIA_MIMETYPE_AUDIO_EAC3;
+
         case FOURCC('m', 'p', '4', 'v'):
             return MEDIA_MIMETYPE_VIDEO_MPEG4;
 
@@ -329,6 +330,11 @@
             return MEDIA_MIMETYPE_VIDEO_HEVC;
         case FOURCC('a', 'c', '-', '4'):
             return MEDIA_MIMETYPE_AUDIO_AC4;
+
+        case FOURCC('t', 'w', 'o', 's'):
+        case FOURCC('s', 'o', 'w', 't'):
+            return MEDIA_MIMETYPE_AUDIO_RAW;
+
         default:
             ALOGW("Unknown fourcc: %c%c%c%c",
                    (fourcc >> 24) & 0xff,
@@ -355,7 +361,7 @@
     return false;
 }
 
-MPEG4Extractor::MPEG4Extractor(DataSourceBase *source, const char *mime)
+MPEG4Extractor::MPEG4Extractor(DataSourceHelper *source, const char *mime)
     : mMoofOffset(0),
       mMoofFound(false),
       mMdatFound(false),
@@ -388,6 +394,7 @@
     mPssh.clear();
 
     delete mCachedSource;
+    delete mDataSource;
 }
 
 uint32_t MPEG4Extractor::flags() const {
@@ -472,8 +479,15 @@
             if (__builtin_mul_overflow(media_time, samplerate, &delay) ||
                     __builtin_add_overflow(delay, halfscale, &delay) ||
                     (delay /= mHeaderTimescale, false) ||
-                    delay > INT32_MAX ||
-                    delay < INT32_MIN) {
+                    /* the calculated delay should be small, but some apps
+                     * appear to write a bogus edit list that causes a really
+                     * large delay, resulting in playback problems.
+                     * Ignore such edit lists.
+                     * (4096 is enough to drop 4 full samples)
+                     */
+                    delay > 4096 ||
+                    delay < 0) {
+                ALOGW("ignoring edit list with bogus values");
                 return;
             }
             ALOGV("delay = %" PRId64, delay);
@@ -1478,6 +1492,8 @@
         case FOURCC('e', 'n', 'c', 'a'):
         case FOURCC('s', 'a', 'm', 'r'):
         case FOURCC('s', 'a', 'w', 'b'):
+        case FOURCC('t', 'w', 'o', 's'):
+        case FOURCC('s', 'o', 'w', 't'):
         {
             if (mIsQT && chunk_type == FOURCC('m', 'p', '4', 'a')
                     && depth >= 1 && mPath[depth - 1] == FOURCC('w', 'a', 'v', 'e')) {
@@ -1547,6 +1563,13 @@
                 // if the chunk type is enca, we'll get the type from the frma box later
                 mLastTrack->meta.setCString(kKeyMIMEType, FourCC2MIME(chunk_type));
                 AdjustChannelsAndRate(chunk_type, &num_channels, &sample_rate);
+
+                if (!strcasecmp(MEDIA_MIMETYPE_AUDIO_RAW, FourCC2MIME(chunk_type))) {
+                    mLastTrack->meta.setInt32(kKeyBitsPerSample, sample_size);
+                    if (chunk_type == FOURCC('t', 'w', 'o', 's')) {
+                        mLastTrack->meta.setInt32(kKeyPcmBigEndian, 1);
+                    }
+                }
             }
             ALOGV("*** coding='%s' %d channels, size %d, rate %d\n",
                    chunk, num_channels, sample_size, sample_rate);
@@ -2438,13 +2461,19 @@
         case FOURCC('a', 'c', '-', '3'):
         {
             *offset += chunk_size;
-            return parseAC3SampleEntry(data_offset);
+            return parseAC3SpecificBox(data_offset);
+        }
+
+        case FOURCC('e', 'c', '-', '3'):
+        {
+            *offset += chunk_size;
+            return parseEAC3SpecificBox(data_offset);
         }
 
         case FOURCC('a', 'c', '-', '4'):
         {
             *offset += chunk_size;
-            return parseAC4SampleEntry(data_offset);
+            return parseAC4SpecificBox(data_offset);
         }
 
         case FOURCC('f', 't', 'y', 'p'):
@@ -2518,43 +2547,43 @@
     return OK;
 }
 
-status_t MPEG4Extractor::parseAC4SampleEntry(off64_t offset) {
+status_t MPEG4Extractor::parseChannelCountSampleRate(
+        off64_t *offset, uint16_t *channelCount, uint16_t *sampleRate) {
     // skip 16 bytes:
     //  + 6-byte reserved,
     //  + 2-byte data reference index,
     //  + 8-byte reserved
-    offset += 16;
-    uint16_t channelCount;
-    if (!mDataSource->getUInt16(offset, &channelCount)) {
-        ALOGE("MPEG4Extractor: error while reading ac-4 block: cannot read channel count");
+    *offset += 16;
+    if (!mDataSource->getUInt16(*offset, channelCount)) {
+        ALOGE("MPEG4Extractor: error while reading sample entry box: cannot read channel count");
         return ERROR_MALFORMED;
     }
     // skip 8 bytes:
     //  + 2-byte channelCount,
     //  + 2-byte sample size,
     //  + 4-byte reserved
-    offset += 8;
-    uint16_t sampleRate;
-    if (!mDataSource->getUInt16(offset, &sampleRate)) {
-        ALOGE("MPEG4Extractor: error while reading ac-4 block: cannot read sample rate");
+    *offset += 8;
+    if (!mDataSource->getUInt16(*offset, sampleRate)) {
+        ALOGE("MPEG4Extractor: error while reading sample entry box: cannot read sample rate");
         return ERROR_MALFORMED;
     }
-
     // skip 4 bytes:
     //  + 2-byte sampleRate,
     //  + 2-byte reserved
-    offset += 4;
-
-    if (mLastTrack == NULL) {
-        return ERROR_MALFORMED;
-    }
-    mLastTrack->meta.setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_AC4);
-    mLastTrack->meta.setInt32(kKeyChannelCount, channelCount);
-    mLastTrack->meta.setInt32(kKeySampleRate, sampleRate);
-    return parseAC4SpecificBox(offset);
+    *offset += 4;
+    return OK;
 }
 
 status_t MPEG4Extractor::parseAC4SpecificBox(off64_t offset) {
+    if (mLastTrack == NULL) {
+        return ERROR_MALFORMED;
+    }
+
+    uint16_t sampleRate, channelCount;
+    status_t status;
+    if ((status = parseChannelCountSampleRate(&offset, &channelCount, &sampleRate)) != OK) {
+        return status;
+    }
     uint32_t size;
     // + 4-byte size
     // + 4-byte type
@@ -2593,39 +2622,185 @@
         return ERROR_MALFORMED;
     }
 
+    mLastTrack->meta.setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_AC4);
+    mLastTrack->meta.setInt32(kKeyChannelCount, channelCount);
+    mLastTrack->meta.setInt32(kKeySampleRate, sampleRate);
     return OK;
 }
 
-status_t MPEG4Extractor::parseAC3SampleEntry(off64_t offset) {
-    // skip 16 bytes:
-    //  + 6-byte reserved,
-    //  + 2-byte data reference index,
-    //  + 8-byte reserved
-    offset += 16;
-    uint16_t channelCount;
-    if (!mDataSource->getUInt16(offset, &channelCount)) {
-        return ERROR_MALFORMED;
-    }
-    // skip 8 bytes:
-    //  + 2-byte channelCount,
-    //  + 2-byte sample size,
-    //  + 4-byte reserved
-    offset += 8;
-    uint16_t sampleRate;
-    if (!mDataSource->getUInt16(offset, &sampleRate)) {
-        ALOGE("MPEG4Extractor: error while reading ac-3 block: cannot read sample rate");
+status_t MPEG4Extractor::parseEAC3SpecificBox(off64_t offset) {
+    if (mLastTrack == NULL) {
         return ERROR_MALFORMED;
     }
 
-    // skip 4 bytes:
-    //  + 2-byte sampleRate,
-    //  + 2-byte reserved
+    uint16_t sampleRate, channels;
+    status_t status;
+    if ((status = parseChannelCountSampleRate(&offset, &channels, &sampleRate)) != OK) {
+        return status;
+    }
+    uint32_t size;
+    // + 4-byte size
+    // + 4-byte type
+    // + 3-byte payload
+    const uint32_t kEAC3SpecificBoxMinSize = 11;
+    // 13 + 3 + (8 * (2 + 5 + 5 + 3 + 1 + 3 + 4 + (14 * 9 + 1))) bits == 152 bytes theoretical max
+    // calculated from the required bits read below as well as the maximum number of independent
+    // and dependant sub streams you can have
+    const uint32_t kEAC3SpecificBoxMaxSize = 152;
+    if (!mDataSource->getUInt32(offset, &size) ||
+        size < kEAC3SpecificBoxMinSize ||
+        size > kEAC3SpecificBoxMaxSize) {
+        ALOGE("MPEG4Extractor: error while reading eac-3 block: cannot read specific box size");
+        return ERROR_MALFORMED;
+    }
+
     offset += 4;
-    return parseAC3SpecificBox(offset, sampleRate);
+    uint32_t type;
+    if (!mDataSource->getUInt32(offset, &type) || type != FOURCC('d', 'e', 'c', '3')) {
+        ALOGE("MPEG4Extractor: error while reading eac-3 specific block: header not dec3");
+        return ERROR_MALFORMED;
+    }
+
+    offset += 4;
+    uint8_t* chunk = new (std::nothrow) uint8_t[size];
+    if (chunk == NULL) {
+        return ERROR_MALFORMED;
+    }
+
+    if (mDataSource->readAt(offset, chunk, size) != (ssize_t)size) {
+        ALOGE("MPEG4Extractor: error while reading eac-3 specific block: bitstream fields");
+        delete[] chunk;
+        return ERROR_MALFORMED;
+    }
+
+    ABitReader br(chunk, size);
+    static const unsigned channelCountTable[] = {2, 1, 2, 3, 3, 4, 4, 5};
+    static const unsigned sampleRateTable[] = {48000, 44100, 32000};
+
+    if (br.numBitsLeft() < 16) {
+        delete[] chunk;
+        return ERROR_MALFORMED;
+    }
+    unsigned data_rate = br.getBits(13);
+    ALOGV("EAC3 data rate = %d", data_rate);
+
+    unsigned num_ind_sub = br.getBits(3) + 1;
+    ALOGV("EAC3 independant substreams = %d", num_ind_sub);
+    if (br.numBitsLeft() < (num_ind_sub * 23)) {
+        delete[] chunk;
+        return ERROR_MALFORMED;
+    }
+
+    unsigned channelCount = 0;
+    for (unsigned i = 0; i < num_ind_sub; i++) {
+        unsigned fscod = br.getBits(2);
+        if (fscod == 3) {
+            ALOGE("Incorrect fscod (3) in EAC3 header");
+            delete[] chunk;
+            return ERROR_MALFORMED;
+        }
+        unsigned boxSampleRate = sampleRateTable[fscod];
+        if (boxSampleRate != sampleRate) {
+            ALOGE("sample rate mismatch: boxSampleRate = %d, sampleRate = %d",
+                boxSampleRate, sampleRate);
+            delete[] chunk;
+            return ERROR_MALFORMED;
+        }
+
+        unsigned bsid = br.getBits(5);
+        if (bsid < 8) {
+            ALOGW("Incorrect bsid in EAC3 header. Possibly AC-3?");
+            delete[] chunk;
+            return ERROR_MALFORMED;
+        }
+
+        // skip
+        br.skipBits(2);
+        unsigned bsmod = br.getBits(3);
+        unsigned acmod = br.getBits(3);
+        unsigned lfeon = br.getBits(1);
+        // we currently only support the first stream
+        if (i == 0)
+            channelCount = channelCountTable[acmod] + lfeon;
+        ALOGV("bsmod = %d, acmod = %d, lfeon = %d", bsmod, acmod, lfeon);
+
+        br.skipBits(3);
+        unsigned num_dep_sub = br.getBits(4);
+        ALOGV("EAC3 dependant substreams = %d", num_dep_sub);
+        if (num_dep_sub != 0) {
+            if (br.numBitsLeft() < 9) {
+                delete[] chunk;
+                return ERROR_MALFORMED;
+            }
+            static const char* chan_loc_tbl[] = { "Lc/Rc","Lrs/Rrs","Cs","Ts","Lsd/Rsd",
+                "Lw/Rw","Lvh/Rvh","Cvh","Lfe2" };
+            unsigned chan_loc = br.getBits(9);
+            unsigned mask = 1;
+            for (unsigned j = 0; j < 9; j++, mask <<= 1) {
+                if ((chan_loc & mask) != 0) {
+                    // we currently only support the first stream
+                    if (i == 0) {
+                        channelCount++;
+                        // these are 2 channels in the mask
+                        if (j == 0 || j == 1 || j == 4 || j == 5 || j == 6) {
+                            channelCount++;
+                        }
+                    }
+                    ALOGV(" %s", chan_loc_tbl[j]);
+                }
+            }
+        } else {
+            if (br.numBitsLeft() == 0) {
+                delete[] chunk;
+                return ERROR_MALFORMED;
+            }
+            br.skipBits(1);
+        }
+    }
+
+    if (br.numBitsLeft() != 0) {
+        if (br.numBitsLeft() < 8) {
+            delete[] chunk;
+            return ERROR_MALFORMED;
+        }
+        unsigned mask = br.getBits(8);
+        for (unsigned i = 0; i < 8; i++) {
+            if (((0x1 << i) && mask) == 0)
+                continue;
+
+            if (br.numBitsLeft() < 8) {
+                delete[] chunk;
+                return ERROR_MALFORMED;
+            }
+            switch (i) {
+                case 0: {
+                    unsigned complexity = br.getBits(8);
+                    ALOGV("Found a JOC stream with complexity = %d", complexity);
+                }break;
+                default: {
+                    br.skipBits(8);
+                }break;
+            }
+        }
+    }
+    mLastTrack->meta.setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_EAC3);
+    mLastTrack->meta.setInt32(kKeyChannelCount, channelCount);
+    mLastTrack->meta.setInt32(kKeySampleRate, sampleRate);
+
+    delete[] chunk;
+    return OK;
 }
 
-status_t MPEG4Extractor::parseAC3SpecificBox(
-        off64_t offset, uint16_t sampleRate) {
+status_t MPEG4Extractor::parseAC3SpecificBox(off64_t offset) {
+    if (mLastTrack == NULL) {
+        return ERROR_MALFORMED;
+    }
+
+    uint16_t sampleRate, channels;
+    status_t status;
+    if ((status = parseChannelCountSampleRate(&offset, &channels, &sampleRate)) != OK) {
+        return status;
+    }
     uint32_t size;
     // + 4-byte size
     // + 4-byte type
@@ -2680,9 +2855,6 @@
     unsigned lfeon = br.getBits(1);
     unsigned channelCount = channelCountTable[acmod] + lfeon;
 
-    if (mLastTrack == NULL) {
-        return ERROR_MALFORMED;
-    }
     mLastTrack->meta.setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_AC3);
     mLastTrack->meta.setInt32(kKeyChannelCount, channelCount);
     mLastTrack->meta.setInt32(kKeySampleRate, sampleRate);
@@ -3919,7 +4091,7 @@
 
 MPEG4Source::MPEG4Source(
         MetaDataBase &format,
-        DataSourceBase *dataSource,
+        DataSourceHelper *dataSource,
         int32_t timeScale,
         const sp<SampleTable> &sampleTable,
         Vector<SidxEntry> &sidx,
@@ -3947,6 +4119,7 @@
       mIsAVC(false),
       mIsHEVC(false),
       mIsAC4(false),
+      mIsPcm(false),
       mNALLengthSize(0),
       mStarted(false),
       mGroup(NULL),
@@ -4009,6 +4182,27 @@
         mNALLengthSize = 1 + (ptr[14 + 7] & 3);
     }
 
+    mIsPcm = !strcasecmp(mime, MEDIA_MIMETYPE_AUDIO_RAW);
+
+    if (mIsPcm) {
+        int32_t numChannels = 0;
+        int32_t bitsPerSample = 0;
+        CHECK(mFormat.findInt32(kKeyBitsPerSample, &bitsPerSample));
+        CHECK(mFormat.findInt32(kKeyChannelCount, &numChannels));
+
+        int32_t bytesPerSample = bitsPerSample >> 3;
+        int32_t pcmSampleSize = bytesPerSample * numChannels;
+
+        size_t maxSampleSize;
+        status_t err = mSampleTable->getMaxSampleSize(&maxSampleSize);
+        if (err != OK || maxSampleSize != static_cast<size_t>(pcmSampleSize) || bitsPerSample != 16) {
+            // Not supported
+            mIsPcm = false;
+        } else {
+            mFormat.setInt32(kKeyMaxInputSize, pcmSampleSize * kMaxPcmFrameSize);
+        }
+    }
+
     CHECK(format.findInt32(kKeyTrackID, &mTrackId));
 
 }
@@ -4923,34 +5117,78 @@
 
     if ((!mIsAVC && !mIsHEVC && !mIsAC4) || mWantsNALFragments) {
         if (newBuffer) {
-            ssize_t num_bytes_read =
-                mDataSource->readAt(offset, (uint8_t *)mBuffer->data(), size);
+            if (mIsPcm) {
+                // The twos' PCM block reader assumes that all samples has the same size.
 
-            if (num_bytes_read < (ssize_t)size) {
-                mBuffer->release();
-                mBuffer = NULL;
+                uint32_t samplesToRead = mSampleTable->getLastSampleIndexInChunk()
+                                                      - mCurrentSampleIndex + 1;
+                if (samplesToRead > kMaxPcmFrameSize) {
+                    samplesToRead = kMaxPcmFrameSize;
+                }
 
-                return ERROR_IO;
-            }
+                ALOGV("Reading %d PCM frames of size %zu at index %d to stop of chunk at %d",
+                      samplesToRead, size, mCurrentSampleIndex,
+                      mSampleTable->getLastSampleIndexInChunk());
 
-            CHECK(mBuffer != NULL);
-            mBuffer->set_range(0, size);
-            mBuffer->meta_data().clear();
-            mBuffer->meta_data().setInt64(
-                    kKeyTime, ((int64_t)cts * 1000000) / mTimescale);
-            mBuffer->meta_data().setInt64(
-                    kKeyDuration, ((int64_t)stts * 1000000) / mTimescale);
+               size_t totalSize = samplesToRead * size;
+                uint8_t* buf = (uint8_t *)mBuffer->data();
+                ssize_t bytesRead = mDataSource->readAt(offset, buf, totalSize);
+                if (bytesRead < (ssize_t)totalSize) {
+                    mBuffer->release();
+                    mBuffer = NULL;
 
-            if (targetSampleTimeUs >= 0) {
-                mBuffer->meta_data().setInt64(
-                        kKeyTargetTime, targetSampleTimeUs);
-            }
+                    return ERROR_IO;
+                }
 
-            if (isSyncSample) {
+                mBuffer->meta_data().clear();
+                mBuffer->meta_data().setInt64(kKeyTime, ((int64_t)cts * 1000000) / mTimescale);
                 mBuffer->meta_data().setInt32(kKeyIsSyncFrame, 1);
-            }
 
-            ++mCurrentSampleIndex;
+                int32_t byteOrder;
+                mFormat.findInt32(kKeyPcmBigEndian, &byteOrder);
+
+                if (byteOrder == 1) {
+                    // Big-endian -> little-endian
+                    uint16_t *dstData = (uint16_t *)buf;
+                    uint16_t *srcData = (uint16_t *)buf;
+
+                    for (size_t j = 0; j < bytesRead / sizeof(uint16_t); j++) {
+                         dstData[j] = ntohs(srcData[j]);
+                    }
+                }
+
+                mCurrentSampleIndex += samplesToRead;
+                mBuffer->set_range(0, totalSize);
+            } else {
+                ssize_t num_bytes_read =
+                    mDataSource->readAt(offset, (uint8_t *)mBuffer->data(), size);
+
+                if (num_bytes_read < (ssize_t)size) {
+                    mBuffer->release();
+                    mBuffer = NULL;
+
+                    return ERROR_IO;
+                }
+
+                CHECK(mBuffer != NULL);
+                mBuffer->set_range(0, size);
+                mBuffer->meta_data().clear();
+                mBuffer->meta_data().setInt64(
+                        kKeyTime, ((int64_t)cts * 1000000) / mTimescale);
+                mBuffer->meta_data().setInt64(
+                        kKeyDuration, ((int64_t)stts * 1000000) / mTimescale);
+
+                if (targetSampleTimeUs >= 0) {
+                    mBuffer->meta_data().setInt64(
+                            kKeyTargetTime, targetSampleTimeUs);
+                }
+
+                if (isSyncSample) {
+                    mBuffer->meta_data().setInt32(kKeyIsSyncFrame, 1);
+                }
+ 
+                ++mCurrentSampleIndex;
+            }
         }
 
         if (!mIsAVC && !mIsHEVC && !mIsAC4) {
@@ -5231,9 +5469,13 @@
     uint32_t cts = 0;
     bool isSyncSample = false;
     bool newBuffer = false;
-    if (mBuffer == NULL) {
+    if (mBuffer == NULL || mCurrentSampleIndex >= mCurrentSamples.size()) {
         newBuffer = true;
 
+        if (mBuffer != NULL) {
+            mBuffer->release();
+            mBuffer = NULL;
+        }
         if (mCurrentSampleIndex >= mCurrentSamples.size()) {
             // move to next fragment if there is one
             if (mNextMoofOffset <= mCurrentMoofOffset) {
@@ -5528,7 +5770,7 @@
     return NULL;
 }
 
-static bool LegacySniffMPEG4(DataSourceBase *source, float *confidence) {
+static bool LegacySniffMPEG4(DataSourceHelper *source, float *confidence) {
     uint8_t header[8];
 
     ssize_t n = source->readAt(4, header, sizeof(header));
@@ -5593,7 +5835,7 @@
 // Also try to identify where this file's metadata ends
 // (end of the 'moov' atom) and report it to the caller as part of
 // the metadata.
-static bool BetterSniffMPEG4(DataSourceBase *source, float *confidence) {
+static bool BetterSniffMPEG4(DataSourceHelper *source, float *confidence) {
     // We scan up to 128 bytes to identify this file as an MP4.
     static const off64_t kMaxScanOffset = 128ll;
 
@@ -5700,18 +5942,19 @@
     return true;
 }
 
-static MediaExtractor* CreateExtractor(DataSourceBase *source, void *) {
-    return new MPEG4Extractor(source);
+static CMediaExtractor* CreateExtractor(CDataSource *source, void *) {
+    return wrap(new MPEG4Extractor(new DataSourceHelper(source)));
 }
 
-static MediaExtractor::CreatorFunc Sniff(
-        DataSourceBase *source, float *confidence, void **,
-        MediaExtractor::FreeMetaFunc *) {
-    if (BetterSniffMPEG4(source, confidence)) {
+static CreatorFunc Sniff(
+        CDataSource *source, float *confidence, void **,
+        FreeMetaFunc *) {
+    DataSourceHelper helper(source);
+    if (BetterSniffMPEG4(&helper, confidence)) {
         return CreateExtractor;
     }
 
-    if (LegacySniffMPEG4(source, confidence)) {
+    if (LegacySniffMPEG4(&helper, confidence)) {
         ALOGW("Identified supported mpeg4 through LegacySniffMPEG4.");
         return CreateExtractor;
     }
@@ -5722,9 +5965,9 @@
 extern "C" {
 // This is the only symbol that needs to be exported
 __attribute__ ((visibility ("default")))
-MediaExtractor::ExtractorDef GETEXTRACTORDEF() {
+ExtractorDef GETEXTRACTORDEF() {
     return {
-        MediaExtractor::EXTRACTORDEF_VERSION,
+        EXTRACTORDEF_VERSION,
         UUID("27575c67-4417-4c54-8d3d-8e626985a164"),
         1, // version
         "MP4 Extractor",
diff --git a/media/extractors/mp4/MPEG4Extractor.h b/media/extractors/mp4/MPEG4Extractor.h
index ed70aa7..ca273e0 100644
--- a/media/extractors/mp4/MPEG4Extractor.h
+++ b/media/extractors/mp4/MPEG4Extractor.h
@@ -20,8 +20,8 @@
 
 #include <arpa/inet.h>
 
-#include <media/DataSourceBase.h>
-#include <media/MediaExtractor.h>
+#include <media/MediaExtractorPluginApi.h>
+#include <media/MediaExtractorPluginHelper.h>
 #include <media/stagefright/MetaDataBase.h>
 #include <media/stagefright/foundation/AString.h>
 #include <utils/KeyedVector.h>
@@ -31,7 +31,8 @@
 
 namespace android {
 struct AMessage;
-class DataSourceBase;
+struct CDataSource;
+class DataSourceHelper;
 struct CachedRangedDataSource;
 class SampleTable;
 class String8;
@@ -53,9 +54,9 @@
     uint32_t default_sample_flags;
 };
 
-class MPEG4Extractor : public MediaExtractor {
+class MPEG4Extractor : public MediaExtractorPluginHelper {
 public:
-    explicit MPEG4Extractor(DataSourceBase *source, const char *mime = NULL);
+    explicit MPEG4Extractor(DataSourceHelper *source, const char *mime = NULL);
 
     virtual size_t countTracks();
     virtual MediaTrack *getTrack(size_t index);
@@ -97,7 +98,7 @@
 
     Vector<Trex> mTrex;
 
-    DataSourceBase *mDataSource;
+    DataSourceHelper *mDataSource;
     CachedRangedDataSource *mCachedSource;
     status_t mInitCheck;
     uint32_t mHeaderTimescale;
@@ -139,19 +140,16 @@
 
     Track *findTrackByMimePrefix(const char *mimePrefix);
 
-    status_t parseAC3SampleEntry(off64_t offset);
-    status_t parseAC3SpecificBox(off64_t offset, uint16_t sampleRate);
-    status_t parseAC4SampleEntry(off64_t offset);
+    status_t parseChannelCountSampleRate(
+            off64_t *offset, uint16_t *channelCount, uint16_t *sampleRate);
+    status_t parseAC3SpecificBox(off64_t offset);
+    status_t parseEAC3SpecificBox(off64_t offset);
     status_t parseAC4SpecificBox(off64_t offset);
 
     MPEG4Extractor(const MPEG4Extractor &);
     MPEG4Extractor &operator=(const MPEG4Extractor &);
 };
 
-bool SniffMPEG4(
-        DataSourceBase *source, String8 *mimeType, float *confidence,
-        sp<AMessage> *);
-
 }  // namespace android
 
 #endif  // MPEG4_EXTRACTOR_H_
diff --git a/media/extractors/mp4/SampleIterator.h b/media/extractors/mp4/SampleIterator.h
index 6a3fd3b..6e4f60e 100644
--- a/media/extractors/mp4/SampleIterator.h
+++ b/media/extractors/mp4/SampleIterator.h
@@ -36,6 +36,11 @@
     uint32_t getSampleTime() const { return mCurrentSampleTime; }
     uint32_t getSampleDuration() const { return mCurrentSampleDuration; }
 
+    uint32_t getLastSampleIndexInChunk() const {
+        return mCurrentSampleIndex + mSamplesPerChunk -
+                ((mCurrentSampleIndex - mFirstChunkSampleIndex) % mSamplesPerChunk) - 1;
+    }
+
     status_t getSampleSizeDirect(
             uint32_t sampleIndex, size_t *size);
 
diff --git a/media/extractors/mp4/SampleTable.cpp b/media/extractors/mp4/SampleTable.cpp
index 81c353e..d242798 100644
--- a/media/extractors/mp4/SampleTable.cpp
+++ b/media/extractors/mp4/SampleTable.cpp
@@ -25,7 +25,7 @@
 
 #include <arpa/inet.h>
 
-#include <media/DataSourceBase.h>
+#include <media/MediaExtractorPluginApi.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/ByteUtils.h>
 
@@ -114,7 +114,7 @@
 
 ////////////////////////////////////////////////////////////////////////////////
 
-SampleTable::SampleTable(DataSourceBase *source)
+SampleTable::SampleTable(DataSourceHelper *source)
     : mDataSource(source),
       mChunkOffsetOffset(-1),
       mChunkOffsetType(0),
@@ -946,6 +946,11 @@
             sampleIndex, sampleSize);
 }
 
+uint32_t SampleTable::getLastSampleIndexInChunk() {
+    Mutex::Autolock autoLock(mLock);
+    return mSampleIterator->getLastSampleIndexInChunk();
+}
+
 status_t SampleTable::getMetaDataForSample(
         uint32_t sampleIndex,
         off64_t *offset,
diff --git a/media/extractors/mp4/SampleTable.h b/media/extractors/mp4/SampleTable.h
index e4e974b..d4b5dc8 100644
--- a/media/extractors/mp4/SampleTable.h
+++ b/media/extractors/mp4/SampleTable.h
@@ -21,18 +21,19 @@
 #include <sys/types.h>
 #include <stdint.h>
 
+#include <media/MediaExtractorPluginHelper.h>
 #include <media/stagefright/MediaErrors.h>
 #include <utils/RefBase.h>
 #include <utils/threads.h>
 
 namespace android {
 
-class DataSourceBase;
+class DataSourceHelper;
 struct SampleIterator;
 
 class SampleTable : public RefBase {
 public:
-    explicit SampleTable(DataSourceBase *source);
+    explicit SampleTable(DataSourceHelper *source);
 
     bool isValid() const;
 
@@ -69,6 +70,9 @@
             bool *isSyncSample = NULL,
             uint32_t *sampleDuration = NULL);
 
+    // call only after getMetaDataForSample has been called successfully.
+    uint32_t getLastSampleIndexInChunk();
+
     enum {
         kFlagBefore,
         kFlagAfter,
@@ -99,7 +103,7 @@
     // Limit the total size of all internal tables to 200MiB.
     static const size_t kMaxTotalSize = 200 * (1 << 20);
 
-    DataSourceBase *mDataSource;
+    DataSourceHelper *mDataSource;
     Mutex mLock;
 
     off64_t mChunkOffsetOffset;
diff --git a/media/extractors/mpeg2/ExtractorBundle.cpp b/media/extractors/mpeg2/ExtractorBundle.cpp
index 8a0fa03..88c2d87 100644
--- a/media/extractors/mpeg2/ExtractorBundle.cpp
+++ b/media/extractors/mpeg2/ExtractorBundle.cpp
@@ -18,36 +18,39 @@
 #define LOG_TAG "MPEG2ExtractorBundle"
 #include <utils/Log.h>
 
-#include <media/MediaExtractor.h>
+#include <media/MediaExtractorPluginHelper.h>
 #include "MPEG2PSExtractor.h"
 #include "MPEG2TSExtractor.h"
 
 namespace android {
 
+struct CDataSource;
+
 extern "C" {
 // This is the only symbol that needs to be exported
 __attribute__ ((visibility ("default")))
-MediaExtractor::ExtractorDef GETEXTRACTORDEF() {
+ExtractorDef GETEXTRACTORDEF() {
     return {
-        MediaExtractor::EXTRACTORDEF_VERSION,
+        EXTRACTORDEF_VERSION,
         UUID("3d1dcfeb-e40a-436d-a574-c2438a555e5f"),
         1,
         "MPEG2-PS/TS Extractor",
         [](
-                DataSourceBase *source,
+                CDataSource *source,
                 float *confidence,
                 void **,
-                MediaExtractor::FreeMetaFunc *) -> MediaExtractor::CreatorFunc {
-            if (SniffMPEG2TS(source, confidence)) {
+                FreeMetaFunc *) -> CreatorFunc {
+            DataSourceHelper helper(source);
+            if (SniffMPEG2TS(&helper, confidence)) {
                 return [](
-                        DataSourceBase *source,
-                        void *) -> MediaExtractor* {
-                    return new MPEG2TSExtractor(source);};
-            } else if (SniffMPEG2PS(source, confidence)) {
+                        CDataSource *source,
+                        void *) -> CMediaExtractor* {
+                    return wrap(new MPEG2TSExtractor(new DataSourceHelper(source)));};
+            } else if (SniffMPEG2PS(&helper, confidence)) {
                         return [](
-                                DataSourceBase *source,
-                                void *) -> MediaExtractor* {
-                            return new MPEG2PSExtractor(source);};
+                                CDataSource *source,
+                                void *) -> CMediaExtractor* {
+                            return wrap(new MPEG2PSExtractor(new DataSourceHelper(source)));};
             }
             return NULL;
         }
diff --git a/media/extractors/mpeg2/MPEG2PSExtractor.cpp b/media/extractors/mpeg2/MPEG2PSExtractor.cpp
index 6980b82..ae1e6ba 100644
--- a/media/extractors/mpeg2/MPEG2PSExtractor.cpp
+++ b/media/extractors/mpeg2/MPEG2PSExtractor.cpp
@@ -94,7 +94,7 @@
 
 ////////////////////////////////////////////////////////////////////////////////
 
-MPEG2PSExtractor::MPEG2PSExtractor(DataSourceBase *source)
+MPEG2PSExtractor::MPEG2PSExtractor(DataSourceHelper *source)
     : mDataSource(source),
       mOffset(0),
       mFinalResult(OK),
@@ -120,6 +120,7 @@
 }
 
 MPEG2PSExtractor::~MPEG2PSExtractor() {
+    delete mDataSource;
 }
 
 size_t MPEG2PSExtractor::countTracks() {
@@ -754,7 +755,7 @@
 ////////////////////////////////////////////////////////////////////////////////
 
 bool SniffMPEG2PS(
-        DataSourceBase *source, float *confidence) {
+        DataSourceHelper *source, float *confidence) {
     uint8_t header[5];
     if (source->readAt(0, header, sizeof(header)) < (ssize_t)sizeof(header)) {
         return false;
diff --git a/media/extractors/mpeg2/MPEG2PSExtractor.h b/media/extractors/mpeg2/MPEG2PSExtractor.h
index 8b9dad9..7689910 100644
--- a/media/extractors/mpeg2/MPEG2PSExtractor.h
+++ b/media/extractors/mpeg2/MPEG2PSExtractor.h
@@ -19,7 +19,8 @@
 #define MPEG2_PS_EXTRACTOR_H_
 
 #include <media/stagefright/foundation/ABase.h>
-#include <media/MediaExtractor.h>
+#include <media/MediaExtractorPluginApi.h>
+#include <media/MediaExtractorPluginHelper.h>
 #include <media/stagefright/MetaDataBase.h>
 #include <utils/threads.h>
 #include <utils/KeyedVector.h>
@@ -31,8 +32,8 @@
 struct Track;
 class String8;
 
-struct MPEG2PSExtractor : public MediaExtractor {
-    explicit MPEG2PSExtractor(DataSourceBase *source);
+struct MPEG2PSExtractor : public MediaExtractorPluginHelper {
+    explicit MPEG2PSExtractor(DataSourceHelper *source);
 
     virtual size_t countTracks();
     virtual MediaTrack *getTrack(size_t index);
@@ -51,7 +52,7 @@
     struct WrappedTrack;
 
     mutable Mutex mLock;
-    DataSourceBase *mDataSource;
+    DataSourceHelper *mDataSource;
 
     off64_t mOffset;
     status_t mFinalResult;
@@ -72,7 +73,7 @@
     DISALLOW_EVIL_CONSTRUCTORS(MPEG2PSExtractor);
 };
 
-bool SniffMPEG2PS(DataSourceBase *source, float *confidence);
+bool SniffMPEG2PS(DataSourceHelper *source, float *confidence);
 
 }  // namespace android
 
diff --git a/media/extractors/mpeg2/MPEG2TSExtractor.cpp b/media/extractors/mpeg2/MPEG2TSExtractor.cpp
index c83f7ce..cbe8556 100644
--- a/media/extractors/mpeg2/MPEG2TSExtractor.cpp
+++ b/media/extractors/mpeg2/MPEG2TSExtractor.cpp
@@ -123,7 +123,7 @@
 
 ////////////////////////////////////////////////////////////////////////////////
 
-MPEG2TSExtractor::MPEG2TSExtractor(DataSourceBase *source)
+MPEG2TSExtractor::MPEG2TSExtractor(DataSourceHelper *source)
     : mDataSource(source),
       mParser(new ATSParser),
       mLastSyncEvent(0),
@@ -131,6 +131,10 @@
     init();
 }
 
+MPEG2TSExtractor::~MPEG2TSExtractor() {
+    delete mDataSource;
+}
+
 size_t MPEG2TSExtractor::countTracks() {
     return mSourceImpls.size();
 }
@@ -652,7 +656,7 @@
 
 ////////////////////////////////////////////////////////////////////////////////
 
-bool SniffMPEG2TS(DataSourceBase *source, float *confidence) {
+bool SniffMPEG2TS(DataSourceHelper *source, float *confidence) {
     for (int i = 0; i < 5; ++i) {
         char header;
         if (source->readAt(kTSPacketSize * i, &header, 1) != 1
diff --git a/media/extractors/mpeg2/MPEG2TSExtractor.h b/media/extractors/mpeg2/MPEG2TSExtractor.h
index cbdd3cb..cdaede3 100644
--- a/media/extractors/mpeg2/MPEG2TSExtractor.h
+++ b/media/extractors/mpeg2/MPEG2TSExtractor.h
@@ -20,7 +20,8 @@
 #define MPEG2_TS_EXTRACTOR_H_
 
 #include <media/stagefright/foundation/ABase.h>
-#include <media/MediaExtractor.h>
+#include <media/MediaExtractorPluginApi.h>
+#include <media/MediaExtractorPluginHelper.h>
 #include <media/MediaTrack.h>
 #include <media/stagefright/MetaDataBase.h>
 #include <utils/threads.h>
@@ -34,12 +35,12 @@
 struct AMessage;
 struct AnotherPacketSource;
 struct ATSParser;
-class DataSourceBase;
+struct CDataSource;
 struct MPEG2TSSource;
 class String8;
 
-struct MPEG2TSExtractor : public MediaExtractor {
-    explicit MPEG2TSExtractor(DataSourceBase *source);
+struct MPEG2TSExtractor : public MediaExtractorPluginHelper {
+    explicit MPEG2TSExtractor(DataSourceHelper *source);
 
     virtual size_t countTracks();
     virtual MediaTrack *getTrack(size_t index);
@@ -52,12 +53,15 @@
     virtual uint32_t flags() const;
     virtual const char * name() { return "MPEG2TSExtractor"; }
 
+protected:
+    virtual ~MPEG2TSExtractor();
+
 private:
     friend struct MPEG2TSSource;
 
     mutable Mutex mLock;
 
-    DataSourceBase *mDataSource;
+    DataSourceHelper *mDataSource;
 
     sp<ATSParser> mParser;
 
@@ -81,9 +85,9 @@
     // Try to feed more data from source to parser.
     // |isInit| means this function is called inside init(). This is a signal to
     // save SyncEvent so that init() can add SyncPoint after it updates |mSourceImpls|.
-    // This function returns OK if expected amount of data is fed from DataSourceBase to
+    // This function returns OK if expected amount of data is fed from DataSourceHelper to
     // parser and is successfully parsed. Otherwise, various error codes could be
-    // returned, e.g., ERROR_END_OF_STREAM, or no data availalbe from DataSourceBase, or
+    // returned, e.g., ERROR_END_OF_STREAM, or no data availalbe from DataSourceHelper, or
     // the data has syntax error during parsing, etc.
     status_t feedMore(bool isInit = false);
     status_t seek(int64_t seekTimeUs,
@@ -101,7 +105,7 @@
     DISALLOW_EVIL_CONSTRUCTORS(MPEG2TSExtractor);
 };
 
-bool SniffMPEG2TS(DataSourceBase *source, float *confidence);
+bool SniffMPEG2TS(DataSourceHelper *source, float *confidence);
 
 }  // namespace android
 
diff --git a/media/extractors/ogg/OggExtractor.cpp b/media/extractors/ogg/OggExtractor.cpp
index b2fe69c..4e97921 100644
--- a/media/extractors/ogg/OggExtractor.cpp
+++ b/media/extractors/ogg/OggExtractor.cpp
@@ -71,7 +71,7 @@
 
 struct MyOggExtractor {
     MyOggExtractor(
-            DataSourceBase *source,
+            DataSourceHelper *source,
             const char *mimeType,
             size_t numHeaders,
             int64_t seekPreRollUs);
@@ -110,7 +110,7 @@
         int64_t mTimeUs;
     };
 
-    DataSourceBase *mSource;
+    DataSourceHelper *mSource;
     off64_t mOffset;
     Page mCurrentPage;
     uint64_t mCurGranulePosition;
@@ -169,7 +169,7 @@
 };
 
 struct MyVorbisExtractor : public MyOggExtractor {
-    explicit MyVorbisExtractor(DataSourceBase *source)
+    explicit MyVorbisExtractor(DataSourceHelper *source)
         : MyOggExtractor(source,
                 MEDIA_MIMETYPE_AUDIO_VORBIS,
                 /* numHeaders */ 3,
@@ -197,7 +197,7 @@
     static const int32_t kOpusSampleRate = 48000;
     static const int64_t kOpusSeekPreRollUs = 80000; // 80 ms
 
-    explicit MyOpusExtractor(DataSourceBase *source)
+    explicit MyOpusExtractor(DataSourceHelper *source)
         : MyOggExtractor(source, MEDIA_MIMETYPE_AUDIO_OPUS, /*numHeaders*/ 2, kOpusSeekPreRollUs),
           mChannelCount(0),
           mCodecDelay(0),
@@ -296,7 +296,7 @@
 ////////////////////////////////////////////////////////////////////////////////
 
 MyOggExtractor::MyOggExtractor(
-        DataSourceBase *source,
+        DataSourceHelper *source,
         const char *mimeType,
         size_t numHeaders,
         int64_t seekPreRollUs)
@@ -1193,7 +1193,7 @@
 
 ////////////////////////////////////////////////////////////////////////////////
 
-OggExtractor::OggExtractor(DataSourceBase *source)
+OggExtractor::OggExtractor(DataSourceHelper *source)
     : mDataSource(source),
       mInitCheck(NO_INIT),
       mImpl(NULL) {
@@ -1220,6 +1220,7 @@
 OggExtractor::~OggExtractor() {
     delete mImpl;
     mImpl = NULL;
+    delete mDataSource;
 }
 
 size_t OggExtractor::countTracks() {
@@ -1248,19 +1249,20 @@
     return mImpl->getFileMetaData(meta);
 }
 
-static MediaExtractor* CreateExtractor(
-        DataSourceBase *source,
+static CMediaExtractor* CreateExtractor(
+        CDataSource *source,
         void *) {
-    return new OggExtractor(source);
+    return wrap(new OggExtractor(new DataSourceHelper(source)));
 }
 
-static MediaExtractor::CreatorFunc Sniff(
-        DataSourceBase *source,
+static CreatorFunc Sniff(
+        CDataSource *source,
         float *confidence,
         void **,
-        MediaExtractor::FreeMetaFunc *) {
+        FreeMetaFunc *) {
+    DataSourceHelper helper(source);
     char tmp[4];
-    if (source->readAt(0, tmp, 4) < 4 || memcmp(tmp, "OggS", 4)) {
+    if (helper.readAt(0, tmp, 4) < 4 || memcmp(tmp, "OggS", 4)) {
         return NULL;
     }
 
@@ -1272,9 +1274,9 @@
 extern "C" {
 // This is the only symbol that needs to be exported
 __attribute__ ((visibility ("default")))
-MediaExtractor::ExtractorDef GETEXTRACTORDEF() {
+ExtractorDef GETEXTRACTORDEF() {
     return {
-        MediaExtractor::EXTRACTORDEF_VERSION,
+        EXTRACTORDEF_VERSION,
         UUID("8cc5cd06-f772-495e-8a62-cba9649374e9"),
         1, // version
         "Ogg Extractor",
diff --git a/media/extractors/ogg/OggExtractor.h b/media/extractors/ogg/OggExtractor.h
index 9fe2944..fbd4663 100644
--- a/media/extractors/ogg/OggExtractor.h
+++ b/media/extractors/ogg/OggExtractor.h
@@ -19,19 +19,19 @@
 #define OGG_EXTRACTOR_H_
 
 #include <utils/Errors.h>
-#include <media/MediaExtractor.h>
+#include <media/MediaExtractorPluginApi.h>
+#include <media/MediaExtractorPluginHelper.h>
 
 namespace android {
 
 struct AMessage;
-class DataSourceBase;
 class String8;
 
 struct MyOggExtractor;
 struct OggSource;
 
-struct OggExtractor : public MediaExtractor {
-    explicit OggExtractor(DataSourceBase *source);
+struct OggExtractor : public MediaExtractorPluginHelper {
+    explicit OggExtractor(DataSourceHelper *source);
 
     virtual size_t countTracks();
     virtual MediaTrack *getTrack(size_t index);
@@ -46,7 +46,7 @@
 private:
     friend struct OggSource;
 
-    DataSourceBase *mDataSource;
+    DataSourceHelper *mDataSource;
     status_t mInitCheck;
 
     MyOggExtractor *mImpl;
diff --git a/media/extractors/wav/WAVExtractor.cpp b/media/extractors/wav/WAVExtractor.cpp
index f5a1b01..c739c2a 100644
--- a/media/extractors/wav/WAVExtractor.cpp
+++ b/media/extractors/wav/WAVExtractor.cpp
@@ -57,7 +57,7 @@
 
 struct WAVSource : public MediaTrack {
     WAVSource(
-            DataSourceBase *dataSource,
+            DataSourceHelper *dataSource,
             MetaDataBase &meta,
             uint16_t waveFormat,
             int32_t bitsPerSample,
@@ -78,7 +78,7 @@
 private:
     static const size_t kMaxFrameSize;
 
-    DataSourceBase *mDataSource;
+    DataSourceHelper *mDataSource;
     MetaDataBase &mMeta;
     uint16_t mWaveFormat;
     int32_t mSampleRate;
@@ -94,7 +94,7 @@
     WAVSource &operator=(const WAVSource &);
 };
 
-WAVExtractor::WAVExtractor(DataSourceBase *source)
+WAVExtractor::WAVExtractor(DataSourceHelper *source)
     : mDataSource(source),
       mValidFormat(false),
       mChannelMask(CHANNEL_MASK_USE_CHANNEL_ORDER) {
@@ -102,6 +102,7 @@
 }
 
 WAVExtractor::~WAVExtractor() {
+    delete mDataSource;
 }
 
 status_t WAVExtractor::getMetaData(MetaDataBase &meta) {
@@ -347,7 +348,7 @@
 const size_t WAVSource::kMaxFrameSize = 32768;
 
 WAVSource::WAVSource(
-        DataSourceBase *dataSource,
+        DataSourceHelper *dataSource,
         MetaDataBase &meta,
         uint16_t waveFormat,
         int32_t bitsPerSample,
@@ -544,27 +545,30 @@
 
 ////////////////////////////////////////////////////////////////////////////////
 
-static MediaExtractor* CreateExtractor(
-        DataSourceBase *source,
+static CMediaExtractor* CreateExtractor(
+        CDataSource *source,
         void *) {
-    return new WAVExtractor(source);
+    return wrap(new WAVExtractor(new DataSourceHelper(source)));
 }
 
-static MediaExtractor::CreatorFunc Sniff(
-        DataSourceBase *source,
+static CreatorFunc Sniff(
+        CDataSource *source,
         float *confidence,
         void **,
-        MediaExtractor::FreeMetaFunc *) {
+        FreeMetaFunc *) {
+    DataSourceHelper *helper = new DataSourceHelper(source);
     char header[12];
-    if (source->readAt(0, header, sizeof(header)) < (ssize_t)sizeof(header)) {
+    if (helper->readAt(0, header, sizeof(header)) < (ssize_t)sizeof(header)) {
+        delete helper;
         return NULL;
     }
 
     if (memcmp(header, "RIFF", 4) || memcmp(&header[8], "WAVE", 4)) {
+        delete helper;
         return NULL;
     }
 
-    MediaExtractor *extractor = new WAVExtractor(source);
+    WAVExtractor *extractor = new WAVExtractor(helper); // extractor owns the helper
     int numTracks = extractor->countTracks();
     delete extractor;
     if (numTracks == 0) {
@@ -579,9 +583,9 @@
 extern "C" {
 // This is the only symbol that needs to be exported
 __attribute__ ((visibility ("default")))
-MediaExtractor::ExtractorDef GETEXTRACTORDEF() {
+ExtractorDef GETEXTRACTORDEF() {
     return {
-        MediaExtractor::EXTRACTORDEF_VERSION,
+        EXTRACTORDEF_VERSION,
         UUID("7d613858-5837-4a38-84c5-332d1cddee27"),
         1, // version
         "WAV Extractor",
diff --git a/media/extractors/wav/WAVExtractor.h b/media/extractors/wav/WAVExtractor.h
index 467d0b7..5136aa8 100644
--- a/media/extractors/wav/WAVExtractor.h
+++ b/media/extractors/wav/WAVExtractor.h
@@ -19,18 +19,19 @@
 #define WAV_EXTRACTOR_H_
 
 #include <utils/Errors.h>
-#include <media/MediaExtractor.h>
+#include <media/MediaExtractorPluginApi.h>
+#include <media/MediaExtractorPluginHelper.h>
 #include <media/stagefright/MetaDataBase.h>
 
 namespace android {
 
 struct AMessage;
-class DataSourceBase;
+struct CDataSource;
 class String8;
 
-class WAVExtractor : public MediaExtractor {
+class WAVExtractor : public MediaExtractorPluginHelper {
 public:
-    explicit WAVExtractor(DataSourceBase *source);
+    explicit WAVExtractor(DataSourceHelper *source);
 
     virtual size_t countTracks();
     virtual MediaTrack *getTrack(size_t index);
@@ -42,7 +43,7 @@
     virtual ~WAVExtractor();
 
 private:
-    DataSourceBase *mDataSource;
+    DataSourceHelper *mDataSource;
     status_t mInitCheck;
     bool mValidFormat;
     uint16_t mWaveFormat;
diff --git a/media/libaaudio/examples/loopback/src/loopback.cpp b/media/libaaudio/examples/loopback/src/loopback.cpp
index 91ebf73..84f9c22 100644
--- a/media/libaaudio/examples/loopback/src/loopback.cpp
+++ b/media/libaaudio/examples/loopback/src/loopback.cpp
@@ -338,7 +338,7 @@
     aaudio_sharing_mode_t requestedInputSharingMode  = AAUDIO_SHARING_MODE_SHARED;
     int                   requestedInputChannelCount = NUM_INPUT_CHANNELS;
     aaudio_format_t       requestedInputFormat       = AAUDIO_FORMAT_UNSPECIFIED;
-    int32_t               requestedInputCapacity     = -1;
+    int32_t               requestedInputCapacity     = AAUDIO_UNSPECIFIED;
     aaudio_performance_mode_t inputPerformanceLevel  = AAUDIO_PERFORMANCE_MODE_LOW_LATENCY;
 
     int32_t               outputFramesPerBurst = 0;
@@ -459,15 +459,8 @@
     argParser.setPerformanceMode(inputPerformanceLevel);
     argParser.setChannelCount(requestedInputChannelCount);
     argParser.setSharingMode(requestedInputSharingMode);
-
-    // Make sure the input buffer has plenty of capacity.
-    // Extra capacity on input should not increase latency if we keep it drained.
-    int32_t inputBufferCapacity = requestedInputCapacity;
-    if (inputBufferCapacity < 0) {
-        int32_t outputBufferCapacity = AAudioStream_getBufferCapacityInFrames(outputStream);
-        inputBufferCapacity = 2 * outputBufferCapacity;
-    }
-    argParser.setBufferCapacity(inputBufferCapacity);
+    // Warning! If you change input capacity then you may not get a FAST track on Legacy path.
+    argParser.setBufferCapacity(requestedInputCapacity);
 
     result = recorder.open(argParser);
     if (result != AAUDIO_OK) {
diff --git a/media/libaudioclient/AudioEffect.cpp b/media/libaudioclient/AudioEffect.cpp
index b1cb0e7..cf11936 100644
--- a/media/libaudioclient/AudioEffect.cpp
+++ b/media/libaudioclient/AudioEffect.cpp
@@ -52,6 +52,7 @@
                 )
     : mStatus(NO_INIT), mOpPackageName(opPackageName)
 {
+    AutoMutex lock(mConstructLock);
     mStatus = set(type, uuid, priority, cbf, user, sessionId, io);
 }
 
@@ -85,6 +86,7 @@
         }
     }
 
+    AutoMutex lock(mConstructLock);
     mStatus = set(pType, pUuid, priority, cbf, user, sessionId, io);
 }
 
@@ -430,14 +432,15 @@
 }
 
 status_t AudioEffect::getEffectDescriptor(const effect_uuid_t *uuid,
-        effect_descriptor_t *descriptor) /*const*/
+                                          const effect_uuid_t *type,
+                                          uint32_t preferredTypeFlag,
+                                          effect_descriptor_t *descriptor)
 {
     const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
     if (af == 0) return PERMISSION_DENIED;
-    return af->getEffectDescriptor(uuid, descriptor);
+    return af->getEffectDescriptor(uuid, type, preferredTypeFlag, descriptor);
 }
 
-
 status_t AudioEffect::queryDefaultPreProcessing(audio_session_t audioSession,
                                           effect_descriptor_t *descriptors,
                                           uint32_t *count)
@@ -446,6 +449,95 @@
     if (aps == 0) return PERMISSION_DENIED;
     return aps->queryDefaultPreProcessing(audioSession, descriptors, count);
 }
+
+status_t AudioEffect::newEffectUniqueId(audio_unique_id_t* id)
+{
+    const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
+    if (af == 0) return PERMISSION_DENIED;
+    *id = af->newAudioUniqueId(AUDIO_UNIQUE_ID_USE_EFFECT);
+    return NO_ERROR;
+}
+
+status_t AudioEffect::addSourceDefaultEffect(const char *typeStr,
+                                             const String16& opPackageName,
+                                             const char *uuidStr,
+                                             int32_t priority,
+                                             audio_source_t source,
+                                             audio_unique_id_t *id)
+{
+    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
+    if (aps == 0) return PERMISSION_DENIED;
+
+    if (typeStr == NULL && uuidStr == NULL) return BAD_VALUE;
+
+    // Convert type & uuid from string to effect_uuid_t.
+    effect_uuid_t type;
+    if (typeStr != NULL) {
+        status_t res = stringToGuid(typeStr, &type);
+        if (res != OK) return res;
+    } else {
+        type = *EFFECT_UUID_NULL;
+    }
+
+    effect_uuid_t uuid;
+    if (uuidStr != NULL) {
+        status_t res = stringToGuid(uuidStr, &uuid);
+        if (res != OK) return res;
+    } else {
+        uuid = *EFFECT_UUID_NULL;
+    }
+
+    return aps->addSourceDefaultEffect(&type, opPackageName, &uuid, priority, source, id);
+}
+
+status_t AudioEffect::addStreamDefaultEffect(const char *typeStr,
+                                             const String16& opPackageName,
+                                             const char *uuidStr,
+                                             int32_t priority,
+                                             audio_usage_t usage,
+                                             audio_unique_id_t *id)
+{
+    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
+    if (aps == 0) return PERMISSION_DENIED;
+
+    if (typeStr == NULL && uuidStr == NULL) return BAD_VALUE;
+
+    // Convert type & uuid from string to effect_uuid_t.
+    effect_uuid_t type;
+    if (typeStr != NULL) {
+        status_t res = stringToGuid(typeStr, &type);
+        if (res != OK) return res;
+    } else {
+        type = *EFFECT_UUID_NULL;
+    }
+
+    effect_uuid_t uuid;
+    if (uuidStr != NULL) {
+        status_t res = stringToGuid(uuidStr, &uuid);
+        if (res != OK) return res;
+    } else {
+        uuid = *EFFECT_UUID_NULL;
+    }
+
+    return aps->addStreamDefaultEffect(&type, opPackageName, &uuid, priority, usage, id);
+}
+
+status_t AudioEffect::removeSourceDefaultEffect(audio_unique_id_t id)
+{
+    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
+    if (aps == 0) return PERMISSION_DENIED;
+
+    return aps->removeSourceDefaultEffect(id);
+}
+
+status_t AudioEffect::removeStreamDefaultEffect(audio_unique_id_t id)
+{
+    const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
+    if (aps == 0) return PERMISSION_DENIED;
+
+    return aps->removeStreamDefaultEffect(id);
+}
+
 // -------------------------------------------------------------------------
 
 status_t AudioEffect::stringToGuid(const char *str, effect_uuid_t *guid)
diff --git a/media/libaudioclient/AudioRecord.cpp b/media/libaudioclient/AudioRecord.cpp
index f9df5b1..e2de8e7 100644
--- a/media/libaudioclient/AudioRecord.cpp
+++ b/media/libaudioclient/AudioRecord.cpp
@@ -865,9 +865,9 @@
     } else if (waitCount == 0) {
         requested = &ClientProxy::kNonBlocking;
     } else if (waitCount > 0) {
-        long long ms = WAIT_PERIOD_MS * (long long) waitCount;
+        time_t ms = WAIT_PERIOD_MS * (time_t) waitCount;
         timeout.tv_sec = ms / 1000;
-        timeout.tv_nsec = (int) (ms % 1000) * 1000000;
+        timeout.tv_nsec = (long) (ms % 1000) * 1000000;
         requested = &timeout;
     } else {
         ALOGE("%s invalid waitCount %d", __func__, waitCount);
diff --git a/media/libaudioclient/AudioTrack.cpp b/media/libaudioclient/AudioTrack.cpp
index ab9efe8..76c9bfb 100644
--- a/media/libaudioclient/AudioTrack.cpp
+++ b/media/libaudioclient/AudioTrack.cpp
@@ -706,6 +706,13 @@
         // force refresh of remaining frames by processAudioBuffer() as last
         // write before stop could be partial.
         mRefreshRemaining = true;
+
+        // for static track, clear the old flags when starting from stopped state
+        if (mSharedBuffer != 0) {
+            android_atomic_and(
+            ~(CBLK_LOOP_CYCLE | CBLK_LOOP_FINAL | CBLK_BUFFER_END),
+            &mCblk->mFlags);
+        }
     }
     mNewPosition = mPosition + mUpdatePeriod;
     int32_t flags = android_atomic_and(~(CBLK_STREAM_END_DONE | CBLK_DISABLED), &mCblk->mFlags);
@@ -1634,9 +1641,9 @@
     } else if (waitCount == 0) {
         requested = &ClientProxy::kNonBlocking;
     } else if (waitCount > 0) {
-        long long ms = WAIT_PERIOD_MS * (long long) waitCount;
+        time_t ms = WAIT_PERIOD_MS * (time_t) waitCount;
         timeout.tv_sec = ms / 1000;
-        timeout.tv_nsec = (int) (ms % 1000) * 1000000;
+        timeout.tv_nsec = (long) (ms % 1000) * 1000000;
         requested = &timeout;
     } else {
         ALOGE("%s invalid waitCount %d", __func__, waitCount);
diff --git a/media/libaudioclient/AudioTrackShared.cpp b/media/libaudioclient/AudioTrackShared.cpp
index a018b22..b8156c6 100644
--- a/media/libaudioclient/AudioTrackShared.cpp
+++ b/media/libaudioclient/AudioTrackShared.cpp
@@ -286,7 +286,8 @@
                 struct timespec after;
                 clock_gettime(CLOCK_MONOTONIC, &after);
                 total.tv_sec += after.tv_sec - before.tv_sec;
-                long deltaNs = after.tv_nsec - before.tv_nsec;
+                // Use auto instead of long to avoid the google-runtime-int warning.
+                auto deltaNs = after.tv_nsec - before.tv_nsec;
                 if (deltaNs < 0) {
                     deltaNs += 1000000000;
                     total.tv_sec--;
diff --git a/media/libaudioclient/IAudioFlinger.cpp b/media/libaudioclient/IAudioFlinger.cpp
index 84e8bee..00678c2 100644
--- a/media/libaudioclient/IAudioFlinger.cpp
+++ b/media/libaudioclient/IAudioFlinger.cpp
@@ -598,14 +598,18 @@
     }
 
     virtual status_t getEffectDescriptor(const effect_uuid_t *pUuid,
-            effect_descriptor_t *pDescriptor) const
+                                         const effect_uuid_t *pType,
+                                         uint32_t preferredTypeFlag,
+                                         effect_descriptor_t *pDescriptor) const
     {
-        if (pUuid == NULL || pDescriptor == NULL) {
+        if (pUuid == NULL || pType == NULL || pDescriptor == NULL) {
             return BAD_VALUE;
         }
         Parcel data, reply;
         data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
         data.write(pUuid, sizeof(effect_uuid_t));
+        data.write(pType, sizeof(effect_uuid_t));
+        data.writeUint32(preferredTypeFlag);
         status_t status = remote()->transact(GET_EFFECT_DESCRIPTOR, data, &reply);
         if (status != NO_ERROR) {
             return status;
@@ -634,10 +638,10 @@
         sp<IEffect> effect;
 
         if (pDesc == NULL) {
-            return effect;
             if (status != NULL) {
                 *status = BAD_VALUE;
             }
+            return effect;
         }
 
         data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
@@ -1277,8 +1281,11 @@
             CHECK_INTERFACE(IAudioFlinger, data, reply);
             effect_uuid_t uuid;
             data.read(&uuid, sizeof(effect_uuid_t));
+            effect_uuid_t type;
+            data.read(&type, sizeof(effect_uuid_t));
+            uint32_t preferredTypeFlag = data.readUint32();
             effect_descriptor_t desc = {};
-            status_t status = getEffectDescriptor(&uuid, &desc);
+            status_t status = getEffectDescriptor(&uuid, &type, preferredTypeFlag, &desc);
             reply->writeInt32(status);
             if (status == NO_ERROR) {
                 reply->write(&desc, sizeof(effect_descriptor_t));
diff --git a/media/libaudioclient/IAudioPolicyService.cpp b/media/libaudioclient/IAudioPolicyService.cpp
index 73a8b74..32a71f3 100644
--- a/media/libaudioclient/IAudioPolicyService.cpp
+++ b/media/libaudioclient/IAudioPolicyService.cpp
@@ -81,7 +81,11 @@
     GET_MASTER_MONO,
     GET_STREAM_VOLUME_DB,
     GET_SURROUND_FORMATS,
-    SET_SURROUND_FORMAT_ENABLED
+    SET_SURROUND_FORMAT_ENABLED,
+    ADD_STREAM_DEFAULT_EFFECT,
+    REMOVE_STREAM_DEFAULT_EFFECT,
+    ADD_SOURCE_DEFAULT_EFFECT,
+    REMOVE_SOURCE_DEFAULT_EFFECT
 };
 
 #define MAX_ITEMS_PER_LIST 1024
@@ -866,6 +870,77 @@
         }
         return reply.readInt32();
     }
+
+    virtual status_t addStreamDefaultEffect(const effect_uuid_t *type,
+                                            const String16& opPackageName,
+                                            const effect_uuid_t *uuid,
+                                            int32_t priority,
+                                            audio_usage_t usage,
+                                            audio_unique_id_t* id)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
+        data.write(type, sizeof(effect_uuid_t));
+        data.writeString16(opPackageName);
+        data.write(uuid, sizeof(effect_uuid_t));
+        data.writeInt32(priority);
+        data.writeInt32((int32_t) usage);
+        status_t status = remote()->transact(ADD_STREAM_DEFAULT_EFFECT, data, &reply);
+        if (status != NO_ERROR) {
+            return status;
+        }
+        status = static_cast <status_t> (reply.readInt32());
+        *id = reply.readInt32();
+        return status;
+    }
+
+    virtual status_t removeStreamDefaultEffect(audio_unique_id_t id)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
+        data.writeInt32(id);
+        status_t status = remote()->transact(REMOVE_STREAM_DEFAULT_EFFECT, data, &reply);
+        if (status != NO_ERROR) {
+            return status;
+        }
+        return static_cast <status_t> (reply.readInt32());
+    }
+
+    virtual status_t addSourceDefaultEffect(const effect_uuid_t *type,
+                                            const String16& opPackageName,
+                                            const effect_uuid_t *uuid,
+                                            int32_t priority,
+                                            audio_source_t source,
+                                            audio_unique_id_t* id)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
+        data.write(type, sizeof(effect_uuid_t));
+        data.writeString16(opPackageName);
+        data.write(uuid, sizeof(effect_uuid_t));
+        data.writeInt32(priority);
+        data.writeInt32((int32_t) source);
+        status_t status = remote()->transact(ADD_SOURCE_DEFAULT_EFFECT, data, &reply);
+        if (status != NO_ERROR) {
+            return status;
+        }
+        status = static_cast <status_t> (reply.readInt32());
+        *id = reply.readInt32();
+        return status;
+    }
+
+    virtual status_t removeSourceDefaultEffect(audio_unique_id_t id)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioPolicyService::getInterfaceDescriptor());
+        data.writeInt32(id);
+        status_t status = remote()->transact(REMOVE_SOURCE_DEFAULT_EFFECT, data, &reply);
+        if (status != NO_ERROR) {
+            return status;
+        }
+        return static_cast <status_t> (reply.readInt32());
+    }
+
 };
 
 IMPLEMENT_META_INTERFACE(AudioPolicyService, "android.media.IAudioPolicyService");
@@ -1561,6 +1636,80 @@
             return NO_ERROR;
         }
 
+        case ADD_STREAM_DEFAULT_EFFECT: {
+            CHECK_INTERFACE(IAudioPolicyService, data, reply);
+            effect_uuid_t type;
+            status_t status = data.read(&type, sizeof(effect_uuid_t));
+            if (status != NO_ERROR) {
+                return status;
+            }
+            String16 opPackageName;
+            status = data.readString16(&opPackageName);
+            if (status != NO_ERROR) {
+                return status;
+            }
+            effect_uuid_t uuid;
+            status = data.read(&uuid, sizeof(effect_uuid_t));
+            if (status != NO_ERROR) {
+                return status;
+            }
+            int32_t priority = data.readInt32();
+            audio_usage_t usage = (audio_usage_t) data.readInt32();
+            audio_unique_id_t id = 0;
+            reply->writeInt32(static_cast <int32_t>(addStreamDefaultEffect(&type,
+                                                                           opPackageName,
+                                                                           &uuid,
+                                                                           priority,
+                                                                           usage,
+                                                                           &id)));
+            reply->writeInt32(id);
+            return NO_ERROR;
+        }
+
+        case REMOVE_STREAM_DEFAULT_EFFECT: {
+            CHECK_INTERFACE(IAudioPolicyService, data, reply);
+            audio_unique_id_t id = static_cast<audio_unique_id_t>(data.readInt32());
+            reply->writeInt32(static_cast <int32_t>(removeStreamDefaultEffect(id)));
+            return NO_ERROR;
+        }
+
+        case ADD_SOURCE_DEFAULT_EFFECT: {
+            CHECK_INTERFACE(IAudioPolicyService, data, reply);
+            effect_uuid_t type;
+            status_t status = data.read(&type, sizeof(effect_uuid_t));
+            if (status != NO_ERROR) {
+                return status;
+            }
+            String16 opPackageName;
+            status = data.readString16(&opPackageName);
+            if (status != NO_ERROR) {
+                return status;
+            }
+            effect_uuid_t uuid;
+            status = data.read(&uuid, sizeof(effect_uuid_t));
+            if (status != NO_ERROR) {
+                return status;
+            }
+            int32_t priority = data.readInt32();
+            audio_source_t source = (audio_source_t) data.readInt32();
+            audio_unique_id_t id = 0;
+            reply->writeInt32(static_cast <int32_t>(addSourceDefaultEffect(&type,
+                                                                           opPackageName,
+                                                                           &uuid,
+                                                                           priority,
+                                                                           source,
+                                                                           &id)));
+            reply->writeInt32(id);
+            return NO_ERROR;
+        }
+
+        case REMOVE_SOURCE_DEFAULT_EFFECT: {
+            CHECK_INTERFACE(IAudioPolicyService, data, reply);
+            audio_unique_id_t id = static_cast<audio_unique_id_t>(data.readInt32());
+            reply->writeInt32(static_cast <int32_t>(removeSourceDefaultEffect(id)));
+            return NO_ERROR;
+        }
+
         default:
             return BBinder::onTransact(code, data, reply, flags);
     }
diff --git a/media/libaudioclient/ToneGenerator.cpp b/media/libaudioclient/ToneGenerator.cpp
index 5716727..c9263f4 100644
--- a/media/libaudioclient/ToneGenerator.cpp
+++ b/media/libaudioclient/ToneGenerator.cpp
@@ -1136,13 +1136,13 @@
             // This is needed in case of cold start of the output stream.
             if ((mStartTime.tv_sec != 0) && (clock_gettime(CLOCK_MONOTONIC, &stopTime) == 0)) {
                 time_t sec = stopTime.tv_sec - mStartTime.tv_sec;
-                long nsec = stopTime.tv_nsec - mStartTime.tv_nsec;
+                auto nsec = stopTime.tv_nsec - mStartTime.tv_nsec;
                 if (nsec < 0) {
                     --sec;
                     nsec += 1000000000;
                 }
 
-                if ((sec + 1) > ((long)(INT_MAX / mSamplingRate))) {
+                if ((sec + 1) > ((time_t)(INT_MAX / mSamplingRate))) {
                     mMaxSmp = sec * mSamplingRate;
                 } else {
                     // mSamplingRate is always > 1000
@@ -1257,8 +1257,8 @@
 
     AudioTrack::Buffer *buffer = static_cast<AudioTrack::Buffer *>(info);
     ToneGenerator *lpToneGen = static_cast<ToneGenerator *>(user);
-    short *lpOut = buffer->i16;
-    unsigned int lNumSmp = buffer->size/sizeof(short);
+    int16_t *lpOut = buffer->i16;
+    unsigned int lNumSmp = buffer->size/sizeof(int16_t);
     const ToneDescriptor *lpToneDesc = lpToneGen->mpToneDesc;
 
     if (buffer->size == 0) return;
@@ -1329,7 +1329,7 @@
             if (lpToneDesc->segments[lpToneGen->mCurSegment].waveFreq[0] != 0) {
                 lWaveCmd = WaveGenerator::WAVEGEN_STOP;
                 unsigned int lFreqIdx = 0;
-                unsigned short lFrequency = lpToneDesc->segments[lpToneGen->mCurSegment].waveFreq[lFreqIdx];
+                uint16_t lFrequency = lpToneDesc->segments[lpToneGen->mCurSegment].waveFreq[lFreqIdx];
 
                 while (lFrequency != 0) {
                     WaveGenerator *lpWaveGen = lpToneGen->mWaveGens.valueFor(lFrequency);
@@ -1379,16 +1379,18 @@
                         lWaveCmd = WaveGenerator::WAVEGEN_START;
                     }
 
-                    ALOGV("New segment %d, Next Time: %d", lpToneGen->mCurSegment,
-                            (lpToneGen->mNextSegSmp*1000)/lpToneGen->mSamplingRate);
+                    ALOGV("New segment %d, Next Time: %lld", lpToneGen->mCurSegment,
+                            ((long long)(lpToneGen->mNextSegSmp)*1000)/lpToneGen->mSamplingRate);
+
 
                 } else {
                     lGenSmp = 0;
                     ALOGV("End repeat, time: %d", (unsigned int)(systemTime()/1000000));
                 }
             } else {
-                ALOGV("New segment %d, Next Time: %d", lpToneGen->mCurSegment,
-                        (lpToneGen->mNextSegSmp*1000)/lpToneGen->mSamplingRate);
+                ALOGV("New segment %d, Next Time: %lld", lpToneGen->mCurSegment,
+                        ((long long)(lpToneGen->mNextSegSmp)*1000)/lpToneGen->mSamplingRate);
+
                 if (lpToneDesc->segments[lpToneGen->mCurSegment].waveFreq[0] != 0) {
                     // If next segment is not silent,  OFF -> ON transition : reset wave generator
                     lWaveCmd = WaveGenerator::WAVEGEN_START;
@@ -1415,7 +1417,7 @@
         if (lGenSmp) {
             // If samples must be generated, call all active wave generators and acumulate waves in lpOut
             unsigned int lFreqIdx = 0;
-            unsigned short lFrequency = lpToneDesc->segments[lpToneGen->mCurSegment].waveFreq[lFreqIdx];
+            uint16_t lFrequency = lpToneDesc->segments[lpToneGen->mCurSegment].waveFreq[lFreqIdx];
 
             while (lFrequency != 0) {
                 WaveGenerator *lpWaveGen = lpToneGen->mWaveGens.valueFor(lFrequency);
@@ -1654,17 +1656,17 @@
 //
 ////////////////////////////////////////////////////////////////////////////////
 ToneGenerator::WaveGenerator::WaveGenerator(uint32_t samplingRate,
-        unsigned short frequency, float volume) {
+        uint16_t frequency, float volume) {
     double d0;
     double F_div_Fs;  // frequency / samplingRate
 
     F_div_Fs = frequency / (double)samplingRate;
     d0 = - (float)GEN_AMP * sin(2 * M_PI * F_div_Fs);
-    mS2_0 = (short)d0;
+    mS2_0 = (int16_t)d0;
     mS1 = 0;
     mS2 = mS2_0;
 
-    mAmplitude_Q15 = (short)(32767. * 32767. * volume / GEN_AMP);
+    mAmplitude_Q15 = (int16_t)(32767. * 32767. * volume / GEN_AMP);
     // take some margin for amplitude fluctuation
     if (mAmplitude_Q15 > 32500)
         mAmplitude_Q15 = 32500;
@@ -1672,7 +1674,7 @@
     d0 = 32768.0 * cos(2 * M_PI * F_div_Fs);  // Q14*2*cos()
     if (d0 > 32767)
         d0 = 32767;
-    mA1_Q14 = (short) d0;
+    mA1_Q14 = (int16_t) d0;
 
     ALOGV("WaveGenerator init, mA1_Q14: %d, mS2_0: %d, mAmplitude_Q15: %d",
             mA1_Q14, mS2_0, mAmplitude_Q15);
@@ -1710,7 +1712,7 @@
 //        none
 //
 ////////////////////////////////////////////////////////////////////////////////
-void ToneGenerator::WaveGenerator::getSamples(short *outBuffer,
+void ToneGenerator::WaveGenerator::getSamples(int16_t *outBuffer,
         unsigned int count, unsigned int command) {
     long lS1, lS2;
     long lA1, lAmplitude;
@@ -1741,7 +1743,7 @@
             lS2 = lS1;
             lS1 = Sample;
             Sample = ((lAmplitude>>16) * Sample) >> S_Q15;
-            *(outBuffer++) += (short)Sample;  // put result in buffer
+            *(outBuffer++) += (int16_t)Sample;  // put result in buffer
             lAmplitude -= dec;
         }
     } else {
@@ -1753,7 +1755,7 @@
             lS2 = lS1;
             lS1 = Sample;
             Sample = (lAmplitude * Sample) >> S_Q15;
-            *(outBuffer++) += (short)Sample;  // put result in buffer
+            *(outBuffer++) += (int16_t)Sample;  // put result in buffer
         }
     }
 
diff --git a/media/libaudioclient/include/media/AudioEffect.h b/media/libaudioclient/include/media/AudioEffect.h
index bfc068b..6bd4137 100644
--- a/media/libaudioclient/include/media/AudioEffect.h
+++ b/media/libaudioclient/include/media/AudioEffect.h
@@ -90,27 +90,34 @@
      */
     static status_t queryEffect(uint32_t index, effect_descriptor_t *descriptor);
 
-
     /*
-     * Returns the descriptor for the specified effect uuid.
+     * Returns a descriptor for the specified effect uuid or type.
+     *
+     * Lookup an effect by uuid, or if that's unspecified (EFFECT_UUID_NULL),
+     * do so by type and preferred flags instead.
      *
      * Parameters:
      *      uuid:       pointer to effect uuid.
+     *      type:       pointer to effect type uuid.
+     *      preferredTypeFlags: if multiple effects of the given type exist,
+     *                  one with a matching type flag will be chosen over one without.
+     *                  Use EFFECT_FLAG_TYPE_MASK to indicate no preference.
      *      descriptor: address where the effect descriptor should be returned.
      *
      * Returned status (from utils/Errors.h) can be:
      *      NO_ERROR        successful operation.
      *      PERMISSION_DENIED could not get AudioFlinger interface
      *      NO_INIT         effect library failed to initialize
-     *      BAD_VALUE       invalid uuid or descriptor pointers
+     *      BAD_VALUE       invalid type or descriptor pointers
      *      NAME_NOT_FOUND  no effect with this uuid found
      *
      * Returned value
      *   *descriptor updated with effect descriptor
      */
     static status_t getEffectDescriptor(const effect_uuid_t *uuid,
-                                        effect_descriptor_t *descriptor) /*const*/;
-
+                                        const effect_uuid_t *type,
+                                        uint32_t preferredTypeFlag,
+                                        effect_descriptor_t *descriptor);
 
     /*
      * Returns a list of descriptors corresponding to the pre processings enabled by default
@@ -144,6 +151,132 @@
                                               uint32_t *count);
 
     /*
+     * Gets a new system-wide unique effect id.
+     *
+     * Parameters:
+     *      id: The address to return the generated id.
+     *
+     * Returned status (from utils/Errors.h) can be:
+     *      NO_ERROR        successful operation.
+     *      PERMISSION_DENIED could not get AudioFlinger interface
+     *                        or caller lacks required permissions.
+     * Returned value
+     *   *id:  The new unique system-wide effect id.
+     */
+    static status_t newEffectUniqueId(audio_unique_id_t* id);
+
+    /*
+     * Static methods for adding/removing system-wide effects.
+     */
+
+    /*
+     * Adds an effect to the list of default output effects for a given source type.
+     *
+     * If the effect is no longer available when a source of the given type
+     * is created, the system will continue without adding it.
+     *
+     * Parameters:
+     *   typeStr:  Type uuid of effect to be a default: can be null if uuidStr is specified.
+     *             This may correspond to the OpenSL ES interface implemented by this effect,
+     *             or could be some vendor-defined type.
+     *   opPackageName: The package name used for app op checks.
+     *   uuidStr:  Uuid of effect to be a default: can be null if type is specified.
+     *             This uuid corresponds to a particular implementation of an effect type.
+     *             Note if both uuidStr and typeStr are specified, typeStr is ignored.
+     *   priority: Requested priority for effect control: the priority level corresponds to the
+     *             value of priority parameter: negative values indicate lower priorities, positive
+     *             values higher priorities, 0 being the normal priority.
+     *   source:   The source this effect should be a default for.
+     *   id:       Address where the system-wide unique id of the default effect should be returned.
+     *
+     * Returned status (from utils/Errors.h) can be:
+     *      NO_ERROR        successful operation.
+     *      PERMISSION_DENIED could not get AudioFlinger interface
+     *                        or caller lacks required permissions.
+     *      NO_INIT         effect library failed to initialize.
+     *      BAD_VALUE       invalid source, type uuid or implementation uuid.
+     *      NAME_NOT_FOUND  no effect with this uuid or type found.
+     *
+     * Returned value
+     *   *id:  The system-wide unique id of the added default effect.
+     */
+    static status_t addSourceDefaultEffect(const char* typeStr,
+                                           const String16& opPackageName,
+                                           const char* uuidStr,
+                                           int32_t priority,
+                                           audio_source_t source,
+                                           audio_unique_id_t* id);
+
+    /*
+     * Adds an effect to the list of default output effects for a given stream type.
+     *
+     * If the effect is no longer available when a stream of the given type
+     * is created, the system will continue without adding it.
+     *
+     * Parameters:
+     *   typeStr:  Type uuid of effect to be a default: can be null if uuidStr is specified.
+     *             This may correspond to the OpenSL ES interface implemented by this effect,
+     *             or could be some vendor-defined type.
+     *   opPackageName: The package name used for app op checks.
+     *   uuidStr:  Uuid of effect to be a default: can be null if type is specified.
+     *             This uuid corresponds to a particular implementation of an effect type.
+     *             Note if both uuidStr and typeStr are specified, typeStr is ignored.
+     *   priority: Requested priority for effect control: the priority level corresponds to the
+     *             value of priority parameter: negative values indicate lower priorities, positive
+     *             values higher priorities, 0 being the normal priority.
+     *   usage:    The usage this effect should be a default for. Unrecognized values will be
+     *             treated as AUDIO_USAGE_UNKNOWN.
+     *   id:       Address where the system-wide unique id of the default effect should be returned.
+     *
+     * Returned status (from utils/Errors.h) can be:
+     *      NO_ERROR        successful operation.
+     *      PERMISSION_DENIED could not get AudioFlinger interface
+     *                        or caller lacks required permissions.
+     *      NO_INIT         effect library failed to initialize.
+     *      BAD_VALUE       invalid type uuid or implementation uuid.
+     *      NAME_NOT_FOUND  no effect with this uuid or type found.
+     *
+     * Returned value
+     *   *id:  The system-wide unique id of the added default effect.
+     */
+    static status_t addStreamDefaultEffect(const char* typeStr,
+                                           const String16& opPackageName,
+                                           const char* uuidStr,
+                                           int32_t priority,
+                                           audio_usage_t usage,
+                                           audio_unique_id_t* id);
+
+    /*
+     * Removes an effect from the list of default output effects for a given source type.
+     *
+     * Parameters:
+     *      id: The system-wide unique id of the effect that should no longer be a default.
+     *
+     * Returned status (from utils/Errors.h) can be:
+     *      NO_ERROR        successful operation.
+     *      PERMISSION_DENIED could not get AudioFlinger interface
+     *                        or caller lacks required permissions.
+     *      NO_INIT         effect library failed to initialize.
+     *      BAD_VALUE       invalid id.
+     */
+    static status_t removeSourceDefaultEffect(audio_unique_id_t id);
+
+    /*
+     * Removes an effect from the list of default output effects for a given stream type.
+     *
+     * Parameters:
+     *      id: The system-wide unique id of the effect that should no longer be a default.
+     *
+     * Returned status (from utils/Errors.h) can be:
+     *      NO_ERROR        successful operation.
+     *      PERMISSION_DENIED could not get AudioFlinger interface
+     *                        or caller lacks required permissions.
+     *      NO_INIT         effect library failed to initialize.
+     *      BAD_VALUE       invalid id.
+     */
+    static status_t removeStreamDefaultEffect(audio_unique_id_t id);
+
+    /*
      * Events used by callback function (effect_callback_t).
      */
     enum event_type {
@@ -414,6 +547,7 @@
      effect_descriptor_t     mDescriptor;        // effect descriptor
      int32_t                 mId;                // system wide unique effect engine instance ID
      Mutex                   mLock;              // Mutex for mEnabled access
+     Mutex                   mConstructLock;     // Mutex for integrality construction
 
      String16                mOpPackageName;     // The package name used for app op checks.
 
@@ -440,12 +574,22 @@
         virtual void controlStatusChanged(bool controlGranted) {
             sp<AudioEffect> effect = mEffect.promote();
             if (effect != 0) {
+                {
+                    // Got the mConstructLock means the construction of AudioEffect
+                    // has finished, we should release the mConstructLock immediately.
+                    AutoMutex lock(effect->mConstructLock);
+                }
                 effect->controlStatusChanged(controlGranted);
             }
         }
         virtual void enableStatusChanged(bool enabled) {
             sp<AudioEffect> effect = mEffect.promote();
             if (effect != 0) {
+                {
+                    // Got the mConstructLock means the construction of AudioEffect
+                    // has finished, we should release the mConstructLock immediately.
+                    AutoMutex lock(effect->mConstructLock);
+                }
                 effect->enableStatusChanged(enabled);
             }
         }
@@ -456,6 +600,11 @@
                                      void *pReplyData) {
             sp<AudioEffect> effect = mEffect.promote();
             if (effect != 0) {
+                {
+                    // Got the mConstructLock means the construction of AudioEffect
+                    // has finished, we should release the mConstructLock immediately.
+                    AutoMutex lock(effect->mConstructLock);
+                }
                 effect->commandExecuted(
                     cmdCode, cmdSize, pCmdData, replySize, pReplyData);
             }
@@ -465,6 +614,11 @@
         virtual void binderDied(const wp<IBinder>& /*who*/) {
             sp<AudioEffect> effect = mEffect.promote();
             if (effect != 0) {
+                {
+                    // Got the mConstructLock means the construction of AudioEffect
+                    // has finished, we should release the mConstructLock immediately.
+                    AutoMutex lock(effect->mConstructLock);
+                }
                 effect->binderDied();
             }
         }
diff --git a/media/libaudioclient/include/media/AudioPolicyHelper.h b/media/libaudioclient/include/media/AudioPolicyHelper.h
index 73ee0a7..35d2e85 100644
--- a/media/libaudioclient/include/media/AudioPolicyHelper.h
+++ b/media/libaudioclient/include/media/AudioPolicyHelper.h
@@ -19,6 +19,43 @@
 #include <system/audio.h>
 
 static inline
+audio_stream_type_t audio_usage_to_stream_type(const audio_usage_t usage)
+{
+    switch(usage) {
+        case AUDIO_USAGE_MEDIA:
+        case AUDIO_USAGE_GAME:
+        case AUDIO_USAGE_ASSISTANCE_NAVIGATION_GUIDANCE:
+        case AUDIO_USAGE_ASSISTANT:
+            return AUDIO_STREAM_MUSIC;
+        case AUDIO_USAGE_ASSISTANCE_ACCESSIBILITY:
+            return AUDIO_STREAM_ACCESSIBILITY;
+        case AUDIO_USAGE_ASSISTANCE_SONIFICATION:
+            return AUDIO_STREAM_SYSTEM;
+        case AUDIO_USAGE_VOICE_COMMUNICATION:
+            return AUDIO_STREAM_VOICE_CALL;
+
+        case AUDIO_USAGE_VOICE_COMMUNICATION_SIGNALLING:
+            return AUDIO_STREAM_DTMF;
+
+        case AUDIO_USAGE_ALARM:
+            return AUDIO_STREAM_ALARM;
+        case AUDIO_USAGE_NOTIFICATION_TELEPHONY_RINGTONE:
+            return AUDIO_STREAM_RING;
+
+        case AUDIO_USAGE_NOTIFICATION:
+        case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_REQUEST:
+        case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_INSTANT:
+        case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_DELAYED:
+        case AUDIO_USAGE_NOTIFICATION_EVENT:
+            return AUDIO_STREAM_NOTIFICATION;
+
+        case AUDIO_USAGE_UNKNOWN:
+        default:
+            return AUDIO_STREAM_MUSIC;
+    }
+}
+
+static inline
 audio_stream_type_t audio_attributes_to_stream_type(const audio_attributes_t *attr)
 {
     // flags to stream type mapping
@@ -30,38 +67,7 @@
     }
 
     // usage to stream type mapping
-    switch (attr->usage) {
-    case AUDIO_USAGE_MEDIA:
-    case AUDIO_USAGE_GAME:
-    case AUDIO_USAGE_ASSISTANCE_NAVIGATION_GUIDANCE:
-    case AUDIO_USAGE_ASSISTANT:
-        return AUDIO_STREAM_MUSIC;
-    case AUDIO_USAGE_ASSISTANCE_ACCESSIBILITY:
-        return AUDIO_STREAM_ACCESSIBILITY;
-    case AUDIO_USAGE_ASSISTANCE_SONIFICATION:
-        return AUDIO_STREAM_SYSTEM;
-    case AUDIO_USAGE_VOICE_COMMUNICATION:
-        return AUDIO_STREAM_VOICE_CALL;
-
-    case AUDIO_USAGE_VOICE_COMMUNICATION_SIGNALLING:
-        return AUDIO_STREAM_DTMF;
-
-    case AUDIO_USAGE_ALARM:
-        return AUDIO_STREAM_ALARM;
-    case AUDIO_USAGE_NOTIFICATION_TELEPHONY_RINGTONE:
-        return AUDIO_STREAM_RING;
-
-    case AUDIO_USAGE_NOTIFICATION:
-    case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_REQUEST:
-    case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_INSTANT:
-    case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_DELAYED:
-    case AUDIO_USAGE_NOTIFICATION_EVENT:
-        return AUDIO_STREAM_NOTIFICATION;
-
-    case AUDIO_USAGE_UNKNOWN:
-    default:
-        return AUDIO_STREAM_MUSIC;
-    }
+    return audio_usage_to_stream_type(attr->usage);
 }
 
 static inline
diff --git a/media/libaudioclient/include/media/AudioRecord.h b/media/libaudioclient/include/media/AudioRecord.h
index cf446a5..806280a 100644
--- a/media/libaudioclient/include/media/AudioRecord.h
+++ b/media/libaudioclient/include/media/AudioRecord.h
@@ -85,7 +85,7 @@
 
         union {
             void*       raw;
-            short*      i16;        // signed 16-bit
+            int16_t*    i16;        // signed 16-bit
             int8_t*     i8;         // unsigned 8-bit, offset by 0x80
                                     // input to obtainBuffer(): unused, output: pointer to buffer
         };
diff --git a/media/libaudioclient/include/media/AudioTrack.h b/media/libaudioclient/include/media/AudioTrack.h
index 3eb627d..59c6f4c 100644
--- a/media/libaudioclient/include/media/AudioTrack.h
+++ b/media/libaudioclient/include/media/AudioTrack.h
@@ -102,7 +102,7 @@
 
         union {
             void*       raw;
-            short*      i16;      // signed 16-bit
+            int16_t*    i16;      // signed 16-bit
             int8_t*     i8;       // unsigned 8-bit, offset by 0x80
         };                        // input to obtainBuffer(): unused, output: pointer to buffer
     };
diff --git a/media/libaudioclient/include/media/IAudioFlinger.h b/media/libaudioclient/include/media/IAudioFlinger.h
index e6bf72f..31326ab 100644
--- a/media/libaudioclient/include/media/IAudioFlinger.h
+++ b/media/libaudioclient/include/media/IAudioFlinger.h
@@ -428,7 +428,9 @@
     virtual status_t queryEffect(uint32_t index, effect_descriptor_t *pDescriptor) const = 0;
 
     virtual status_t getEffectDescriptor(const effect_uuid_t *pEffectUUID,
-                                        effect_descriptor_t *pDescriptor) const = 0;
+                                         const effect_uuid_t *pTypeUUID,
+                                         uint32_t preferredTypeFlag,
+                                         effect_descriptor_t *pDescriptor) const = 0;
 
     virtual sp<IEffect> createEffect(
                                     effect_descriptor_t *pDesc,
diff --git a/media/libaudioclient/include/media/IAudioPolicyService.h b/media/libaudioclient/include/media/IAudioPolicyService.h
index cdbb876..fdd8d57 100644
--- a/media/libaudioclient/include/media/IAudioPolicyService.h
+++ b/media/libaudioclient/include/media/IAudioPolicyService.h
@@ -109,6 +109,20 @@
     virtual status_t queryDefaultPreProcessing(audio_session_t audioSession,
                                               effect_descriptor_t *descriptors,
                                               uint32_t *count) = 0;
+    virtual status_t addSourceDefaultEffect(const effect_uuid_t *type,
+                                            const String16& opPackageName,
+                                            const effect_uuid_t *uuid,
+                                            int32_t priority,
+                                            audio_source_t source,
+                                            audio_unique_id_t* id) = 0;
+    virtual status_t addStreamDefaultEffect(const effect_uuid_t *type,
+                                            const String16& opPackageName,
+                                            const effect_uuid_t *uuid,
+                                            int32_t priority,
+                                            audio_usage_t usage,
+                                            audio_unique_id_t* id) = 0;
+    virtual status_t removeSourceDefaultEffect(audio_unique_id_t id) = 0;
+    virtual status_t removeStreamDefaultEffect(audio_unique_id_t id) = 0;
    // Check if offload is possible for given format, stream type, sample rate,
     // bit rate, duration, video and streaming or offload property is enabled
     virtual bool isOffloadSupported(const audio_offload_info_t& info) = 0;
diff --git a/media/libaudioclient/include/media/ToneGenerator.h b/media/libaudioclient/include/media/ToneGenerator.h
index 247703f..e0e3bb1 100644
--- a/media/libaudioclient/include/media/ToneGenerator.h
+++ b/media/libaudioclient/include/media/ToneGenerator.h
@@ -256,9 +256,9 @@
     class ToneSegment {
     public:
         unsigned int duration;
-        unsigned short waveFreq[TONEGEN_MAX_WAVES+1];
-        unsigned short loopCnt;
-        unsigned short loopIndx;
+        uint16_t waveFreq[TONEGEN_MAX_WAVES+1];
+        uint16_t loopCnt;
+        uint16_t loopIndx;
     };
 
     class ToneDescriptor {
@@ -279,14 +279,14 @@
     unsigned int mMaxSmp;  // Maximum number of audio samples played (maximun tone duration)
     int mDurationMs;  // Maximum tone duration in ms
 
-    unsigned short mCurSegment;  // Current segment index in ToneDescriptor segments[]
-    unsigned short mCurCount;  // Current sequence repeat count
-    volatile unsigned short mState;  // ToneGenerator state (tone_state)
-    unsigned short mRegion;
+    uint16_t mCurSegment;  // Current segment index in ToneDescriptor segments[]
+    uint16_t mCurCount;  // Current sequence repeat count
+    volatile uint16_t mState;  // ToneGenerator state (tone_state)
+    uint16_t mRegion;
     const ToneDescriptor *mpToneDesc;  // pointer to active tone descriptor
     const ToneDescriptor *mpNewToneDesc;  // pointer to next active tone descriptor
 
-    unsigned short mLoopCounter; // Current tone loopback count
+    uint16_t mLoopCounter; // Current tone loopback count
 
     uint32_t mSamplingRate;  // AudioFlinger Sampling rate
     sp<AudioTrack> mpAudioTrack;  // Pointer to audio track used for playback
@@ -314,26 +314,26 @@
             WAVEGEN_STOP  // Stop wave on zero crossing
         };
 
-        WaveGenerator(uint32_t samplingRate, unsigned short frequency,
+        WaveGenerator(uint32_t samplingRate, uint16_t frequency,
                 float volume);
         ~WaveGenerator();
 
-        void getSamples(short *outBuffer, unsigned int count,
+        void getSamples(int16_t *outBuffer, unsigned int count,
                 unsigned int command);
 
     private:
-        static const short GEN_AMP = 32000;  // amplitude of generator
-        static const short S_Q14 = 14;  // shift for Q14
-        static const short S_Q15 = 15;  // shift for Q15
+        static const int16_t GEN_AMP = 32000;  // amplitude of generator
+        static const int16_t S_Q14 = 14;  // shift for Q14
+        static const int16_t S_Q15 = 15;  // shift for Q15
 
-        short mA1_Q14;  // Q14 coefficient
+        int16_t mA1_Q14;  // Q14 coefficient
         // delay line of full amplitude generator
         long mS1, mS2;  // delay line S2 oldest
-        short mS2_0;  // saved value for reinitialisation
-        short mAmplitude_Q15;  // Q15 amplitude
+        int16_t mS2_0;  // saved value for reinitialisation
+        int16_t mAmplitude_Q15;  // Q15 amplitude
     };
 
-    KeyedVector<unsigned short, WaveGenerator *> mWaveGens;  // list of active wave generators.
+    KeyedVector<uint16_t, WaveGenerator *> mWaveGens;  // list of active wave generators.
 };
 
 }
diff --git a/media/libaudiohal/impl/StreamHalHidl.cpp b/media/libaudiohal/impl/StreamHalHidl.cpp
index b23e018..bfa80e8 100644
--- a/media/libaudiohal/impl/StreamHalHidl.cpp
+++ b/media/libaudiohal/impl/StreamHalHidl.cpp
@@ -192,7 +192,17 @@
                     const native_handle *handle = hidlInfo.sharedMemory.handle();
                     if (handle->numFds > 0) {
                         info->shared_memory_fd = handle->data[0];
+#if MAJOR_VERSION == 4
+                        info->flags = audio_mmap_buffer_flag(hidlInfo.flags);
+#endif
                         info->buffer_size_frames = hidlInfo.bufferSizeFrames;
+                        // Negative buffer size frame was a hack in O and P to
+                        // indicate that the buffer is shareable to applications
+                        if (info->buffer_size_frames < 0) {
+                            info->buffer_size_frames *= -1;
+                            info->flags = audio_mmap_buffer_flag(
+                                    info->flags | AUDIO_MMAP_APPLICATION_SHAREABLE);
+                        }
                         info->burst_size_frames = hidlInfo.burstSizeFrames;
                         // info->shared_memory_address is not needed in HIDL context
                         info->shared_memory_address = NULL;
diff --git a/media/libaudioprocessing/include/media/AudioResamplerPublic.h b/media/libaudioprocessing/include/media/AudioResamplerPublic.h
index 055f724..50ca33d 100644
--- a/media/libaudioprocessing/include/media/AudioResamplerPublic.h
+++ b/media/libaudioprocessing/include/media/AudioResamplerPublic.h
@@ -104,8 +104,8 @@
         const AudioPlaybackRate &pr2) {
     return fabs(pr1.mSpeed - pr2.mSpeed) < AUDIO_TIMESTRETCH_SPEED_MIN_DELTA &&
            fabs(pr1.mPitch - pr2.mPitch) < AUDIO_TIMESTRETCH_PITCH_MIN_DELTA &&
-           pr2.mStretchMode == pr2.mStretchMode &&
-           pr2.mFallbackMode == pr2.mFallbackMode;
+           pr1.mStretchMode == pr2.mStretchMode &&
+           pr1.mFallbackMode == pr2.mFallbackMode;
 }
 
 static inline bool isAudioPlaybackRateValid(const AudioPlaybackRate &playbackRate) {
diff --git a/media/libeffects/loudness/EffectLoudnessEnhancer.cpp b/media/libeffects/loudness/EffectLoudnessEnhancer.cpp
index 9d29cf1..d61efd3 100644
--- a/media/libeffects/loudness/EffectLoudnessEnhancer.cpp
+++ b/media/libeffects/loudness/EffectLoudnessEnhancer.cpp
@@ -30,6 +30,26 @@
 #include <audio_effects/effect_loudnessenhancer.h>
 #include "dsp/core/dynamic_range_compression.h"
 
+// BUILD_FLOAT targets building a float effect instead of the legacy int16_t effect.
+#define BUILD_FLOAT
+
+#ifdef BUILD_FLOAT
+
+static constexpr audio_format_t kProcessFormat = AUDIO_FORMAT_PCM_FLOAT;
+
+#else
+
+static constexpr audio_format_t kProcessFormat = AUDIO_FORMAT_PCM_16_BIT;
+
+static inline int16_t clamp16(int32_t sample)
+{
+    if ((sample>>15) ^ (sample>>31))
+        sample = 0x7FFF ^ (sample>>31);
+    return sample;
+}
+
+#endif // BUILD_FLOAT
+
 extern "C" {
 
 // effect_handle_t interface implementation for LE effect
@@ -80,13 +100,6 @@
     }
 }
 
-static inline int16_t clamp16(int32_t sample)
-{
-    if ((sample>>15) ^ (sample>>31))
-        sample = 0x7FFF ^ (sample>>31);
-    return sample;
-}
-
 //----------------------------------------------------------------------------
 // LE_setConfig()
 //----------------------------------------------------------------------------
@@ -111,7 +124,7 @@
     if (pConfig->inputCfg.channels != AUDIO_CHANNEL_OUT_STEREO) return -EINVAL;
     if (pConfig->outputCfg.accessMode != EFFECT_BUFFER_ACCESS_WRITE &&
             pConfig->outputCfg.accessMode != EFFECT_BUFFER_ACCESS_ACCUMULATE) return -EINVAL;
-    if (pConfig->inputCfg.format != AUDIO_FORMAT_PCM_16_BIT) return -EINVAL;
+    if (pConfig->inputCfg.format != kProcessFormat) return -EINVAL;
 
     pContext->mConfig = *pConfig;
 
@@ -159,7 +172,7 @@
 
     pContext->mConfig.inputCfg.accessMode = EFFECT_BUFFER_ACCESS_READ;
     pContext->mConfig.inputCfg.channels = AUDIO_CHANNEL_OUT_STEREO;
-    pContext->mConfig.inputCfg.format = AUDIO_FORMAT_PCM_16_BIT;
+    pContext->mConfig.inputCfg.format = kProcessFormat;
     pContext->mConfig.inputCfg.samplingRate = 44100;
     pContext->mConfig.inputCfg.bufferProvider.getBuffer = NULL;
     pContext->mConfig.inputCfg.bufferProvider.releaseBuffer = NULL;
@@ -167,7 +180,7 @@
     pContext->mConfig.inputCfg.mask = EFFECT_CONFIG_ALL;
     pContext->mConfig.outputCfg.accessMode = EFFECT_BUFFER_ACCESS_ACCUMULATE;
     pContext->mConfig.outputCfg.channels = AUDIO_CHANNEL_OUT_STEREO;
-    pContext->mConfig.outputCfg.format = AUDIO_FORMAT_PCM_16_BIT;
+    pContext->mConfig.outputCfg.format = kProcessFormat;
     pContext->mConfig.outputCfg.samplingRate = 44100;
     pContext->mConfig.outputCfg.bufferProvider.getBuffer = NULL;
     pContext->mConfig.outputCfg.bufferProvider.releaseBuffer = NULL;
@@ -284,18 +297,41 @@
 
     //ALOGV("LE about to process %d samples", inBuffer->frameCount);
     uint16_t inIdx;
+#ifdef BUILD_FLOAT
+    constexpr float scale = 1 << 15; // power of 2 is lossless conversion to int16_t range
+    constexpr float inverseScale = 1.f / scale;
+    const float inputAmp = pow(10, pContext->mTargetGainmB/2000.0f) * scale;
+#else
     float inputAmp = pow(10, pContext->mTargetGainmB/2000.0f);
+#endif
     float leftSample, rightSample;
     for (inIdx = 0 ; inIdx < inBuffer->frameCount ; inIdx++) {
         // makeup gain is applied on the input of the compressor
+#ifdef BUILD_FLOAT
+        leftSample  = inputAmp * inBuffer->f32[2*inIdx];
+        rightSample = inputAmp * inBuffer->f32[2*inIdx +1];
+        pContext->mCompressor->Compress(&leftSample, &rightSample);
+        inBuffer->f32[2*inIdx]    = leftSample * inverseScale;
+        inBuffer->f32[2*inIdx +1] = rightSample * inverseScale;
+#else
         leftSample  = inputAmp * (float)inBuffer->s16[2*inIdx];
         rightSample = inputAmp * (float)inBuffer->s16[2*inIdx +1];
         pContext->mCompressor->Compress(&leftSample, &rightSample);
         inBuffer->s16[2*inIdx]    = (int16_t) leftSample;
         inBuffer->s16[2*inIdx +1] = (int16_t) rightSample;
+#endif // BUILD_FLOAT
     }
 
     if (inBuffer->raw != outBuffer->raw) {
+#ifdef BUILD_FLOAT
+        if (pContext->mConfig.outputCfg.accessMode == EFFECT_BUFFER_ACCESS_ACCUMULATE) {
+            for (size_t i = 0; i < outBuffer->frameCount*2; i++) {
+                outBuffer->f32[i] += inBuffer->f32[i];
+            }
+        } else {
+            memcpy(outBuffer->raw, inBuffer->raw, outBuffer->frameCount * 2 * sizeof(float));
+        }
+#else
         if (pContext->mConfig.outputCfg.accessMode == EFFECT_BUFFER_ACCESS_ACCUMULATE) {
             for (size_t i = 0; i < outBuffer->frameCount*2; i++) {
                 outBuffer->s16[i] = clamp16(outBuffer->s16[i] + inBuffer->s16[i]);
@@ -303,6 +339,7 @@
         } else {
             memcpy(outBuffer->raw, inBuffer->raw, outBuffer->frameCount * 2 * sizeof(int16_t));
         }
+#endif // BUILD_FLOAT
     }
     if (pContext->mState != LOUDNESS_ENHANCER_STATE_ACTIVE) {
         return -ENODATA;
diff --git a/media/libeffects/lvm/wrapper/Bundle/EffectBundle.cpp b/media/libeffects/lvm/wrapper/Bundle/EffectBundle.cpp
index 04c2692..53d266a 100644
--- a/media/libeffects/lvm/wrapper/Bundle/EffectBundle.cpp
+++ b/media/libeffects/lvm/wrapper/Bundle/EffectBundle.cpp
@@ -1198,13 +1198,7 @@
     for (int i=0; i<LVM_NR_MEMORY_REGIONS; i++){
         if (MemTab.Region[i].Size != 0){
             if (MemTab.Region[i].pBaseAddress != NULL){
-                ALOGV("\tLvmEffect_free - START freeing %" PRIu32 " bytes for region %u at %p\n",
-                        MemTab.Region[i].Size, i, MemTab.Region[i].pBaseAddress);
-
                 free(MemTab.Region[i].pBaseAddress);
-
-                ALOGV("\tLvmEffect_free - END   freeing %" PRIu32 " bytes for region %u at %p\n",
-                        MemTab.Region[i].Size, i, MemTab.Region[i].pBaseAddress);
             }else{
                 ALOGV("\tLVM_ERROR : LvmEffect_free - trying to free with NULL pointer %" PRIu32
                         " bytes for region %u at %p ERROR\n",
diff --git a/media/libeffects/lvm/wrapper/Reverb/EffectReverb.cpp b/media/libeffects/lvm/wrapper/Reverb/EffectReverb.cpp
index e1c03f9..686ec4c 100644
--- a/media/libeffects/lvm/wrapper/Reverb/EffectReverb.cpp
+++ b/media/libeffects/lvm/wrapper/Reverb/EffectReverb.cpp
@@ -612,13 +612,7 @@
     for (int i=0; i<LVM_NR_MEMORY_REGIONS; i++){
         if (MemTab.Region[i].Size != 0){
             if (MemTab.Region[i].pBaseAddress != NULL){
-                ALOGV("\tfree() - START freeing %" PRIu32 " bytes for region %u at %p\n",
-                        MemTab.Region[i].Size, i, MemTab.Region[i].pBaseAddress);
-
                 free(MemTab.Region[i].pBaseAddress);
-
-                ALOGV("\tfree() - END   freeing %" PRIu32 " bytes for region %u at %p\n",
-                        MemTab.Region[i].Size, i, MemTab.Region[i].pBaseAddress);
             }else{
                 ALOGV("\tLVM_ERROR : free() - trying to free with NULL pointer %" PRIu32 " bytes "
                         "for region %u at %p ERROR\n",
diff --git a/media/libeffects/preprocessing/PreProcessing.cpp b/media/libeffects/preprocessing/PreProcessing.cpp
index f2844ed..b914f4b 100644
--- a/media/libeffects/preprocessing/PreProcessing.cpp
+++ b/media/libeffects/preprocessing/PreProcessing.cpp
@@ -889,7 +889,7 @@
         delete session->procFrame;
         session->procFrame = NULL;
         delete session->apm;
-        session->apm = NULL;
+        session->apm = NULL; // NOLINT(clang-analyzer-cplusplus.NewDelete)
     }
     return status;
 }
diff --git a/media/libeffects/visualizer/Android.mk b/media/libeffects/visualizer/Android.mk
index 70409de..3534149 100644
--- a/media/libeffects/visualizer/Android.mk
+++ b/media/libeffects/visualizer/Android.mk
@@ -19,7 +19,8 @@
 LOCAL_MODULE:= libvisualizer
 
 LOCAL_C_INCLUDES := \
-	$(call include-path-for, audio-effects)
+	$(call include-path-for, audio-effects) \
+	$(call include-path-for, audio-utils)
 
 
 LOCAL_HEADER_LIBRARIES += libhardware_headers
diff --git a/media/libeffects/visualizer/EffectVisualizer.cpp b/media/libeffects/visualizer/EffectVisualizer.cpp
index 807f24d..e2ccfb7 100644
--- a/media/libeffects/visualizer/EffectVisualizer.cpp
+++ b/media/libeffects/visualizer/EffectVisualizer.cpp
@@ -24,11 +24,25 @@
 #include <string.h>
 #include <time.h>
 
+#include <algorithm> // max
 #include <new>
 
 #include <log/log.h>
 
 #include <audio_effects/effect_visualizer.h>
+#include <audio_utils/primitives.h>
+
+#define BUILD_FLOAT
+
+#ifdef BUILD_FLOAT
+
+static constexpr audio_format_t kProcessFormat = AUDIO_FORMAT_PCM_FLOAT;
+
+#else
+
+static constexpr audio_format_t kProcessFormat = AUDIO_FORMAT_PCM_16_BIT;
+
+#endif // BUILD_FLOAT
 
 extern "C" {
 
@@ -146,7 +160,7 @@
     if (pConfig->inputCfg.channels != AUDIO_CHANNEL_OUT_STEREO) return -EINVAL;
     if (pConfig->outputCfg.accessMode != EFFECT_BUFFER_ACCESS_WRITE &&
             pConfig->outputCfg.accessMode != EFFECT_BUFFER_ACCESS_ACCUMULATE) return -EINVAL;
-    if (pConfig->inputCfg.format != AUDIO_FORMAT_PCM_16_BIT) return -EINVAL;
+    if (pConfig->inputCfg.format != kProcessFormat) return -EINVAL;
 
     pContext->mConfig = *pConfig;
 
@@ -192,7 +206,7 @@
 {
     pContext->mConfig.inputCfg.accessMode = EFFECT_BUFFER_ACCESS_READ;
     pContext->mConfig.inputCfg.channels = AUDIO_CHANNEL_OUT_STEREO;
-    pContext->mConfig.inputCfg.format = AUDIO_FORMAT_PCM_16_BIT;
+    pContext->mConfig.inputCfg.format = kProcessFormat;
     pContext->mConfig.inputCfg.samplingRate = 44100;
     pContext->mConfig.inputCfg.bufferProvider.getBuffer = NULL;
     pContext->mConfig.inputCfg.bufferProvider.releaseBuffer = NULL;
@@ -200,7 +214,7 @@
     pContext->mConfig.inputCfg.mask = EFFECT_CONFIG_ALL;
     pContext->mConfig.outputCfg.accessMode = EFFECT_BUFFER_ACCESS_ACCUMULATE;
     pContext->mConfig.outputCfg.channels = AUDIO_CHANNEL_OUT_STEREO;
-    pContext->mConfig.outputCfg.format = AUDIO_FORMAT_PCM_16_BIT;
+    pContext->mConfig.outputCfg.format = kProcessFormat;
     pContext->mConfig.outputCfg.samplingRate = 44100;
     pContext->mConfig.outputCfg.bufferProvider.getBuffer = NULL;
     pContext->mConfig.outputCfg.bufferProvider.releaseBuffer = NULL;
@@ -301,15 +315,8 @@
 //--- Effect Control Interface Implementation
 //
 
-static inline int16_t clamp16(int32_t sample)
-{
-    if ((sample>>15) ^ (sample>>31))
-        sample = 0x7FFF ^ (sample>>31);
-    return sample;
-}
-
 int Visualizer_process(
-        effect_handle_t self,audio_buffer_t *inBuffer, audio_buffer_t *outBuffer)
+        effect_handle_t self, audio_buffer_t *inBuffer, audio_buffer_t *outBuffer)
 {
     VisualizerContext * pContext = (VisualizerContext *)self;
 
@@ -324,20 +331,28 @@
         return -EINVAL;
     }
 
+    const size_t sampleLen = inBuffer->frameCount * pContext->mChannelCount;
+
     // perform measurements if needed
     if (pContext->mMeasurementMode & MEASUREMENT_MODE_PEAK_RMS) {
         // find the peak and RMS squared for the new buffer
-        uint32_t inIdx;
-        int16_t maxSample = 0;
         float rmsSqAcc = 0;
-        for (inIdx = 0 ; inIdx < inBuffer->frameCount * pContext->mChannelCount ; inIdx++) {
-            if (inBuffer->s16[inIdx] > maxSample) {
-                maxSample = inBuffer->s16[inIdx];
-            } else if (-inBuffer->s16[inIdx] > maxSample) {
-                maxSample = -inBuffer->s16[inIdx];
-            }
-            rmsSqAcc += (inBuffer->s16[inIdx] * inBuffer->s16[inIdx]);
+
+#ifdef BUILD_FLOAT
+        float maxSample = 0.f;
+        for (size_t inIdx = 0; inIdx < sampleLen; ++inIdx) {
+            maxSample = fmax(maxSample, fabs(inBuffer->f32[inIdx]));
+            rmsSqAcc += inBuffer->f32[inIdx] * inBuffer->f32[inIdx];
         }
+        maxSample *= 1 << 15; // scale to int16_t, with exactly 1 << 15 representing positive num.
+        rmsSqAcc *= 1 << 30; // scale to int16_t * 2
+#else
+        int maxSample = 0;
+        for (size_t inIdx = 0; inIdx < sampleLen; ++inIdx) {
+            maxSample = std::max(maxSample, std::abs(int32_t(inBuffer->s16[inIdx])));
+            rmsSqAcc += inBuffer->s16[inIdx] * inBuffer->s16[inIdx];
+        }
+#endif
         // store the measurement
         pContext->mPastMeasurements[pContext->mMeasurementBufferIdx].mPeakU16 = (uint16_t)maxSample;
         pContext->mPastMeasurements[pContext->mMeasurementBufferIdx].mRmsSquared =
@@ -348,32 +363,59 @@
         }
     }
 
-    // all code below assumes stereo 16 bit PCM output and input
+#ifdef BUILD_FLOAT
+    float fscale; // multiplicative scale
+#else
     int32_t shift;
+#endif // BUILD_FLOAT
 
     if (pContext->mScalingMode == VISUALIZER_SCALING_MODE_NORMALIZED) {
         // derive capture scaling factor from peak value in current buffer
         // this gives more interesting captures for display.
-        shift = 32;
-        int len = inBuffer->frameCount * 2;
-        for (int i = 0; i < len; i++) {
+
+#ifdef BUILD_FLOAT
+        float maxSample = 0.f;
+        for (size_t inIdx = 0; inIdx < sampleLen; ++inIdx) {
+            maxSample = fmax(maxSample, fabs(inBuffer->f32[inIdx]));
+        }
+        if (maxSample > 0.f) {
+            constexpr float halfish = 127.f / 256.f;
+            fscale = halfish / maxSample;
+            int exp; // unused
+            const float significand = frexp(fscale, &exp);
+            if (significand == 0.5f) {
+                fscale *= 255.f / 256.f; // avoid returning unaltered PCM signal
+            }
+        } else {
+            // scale doesn't matter, the values are all 0.
+            fscale = 1.f;
+        }
+#else
+        int32_t orAccum = 0;
+        for (size_t i = 0; i < sampleLen; ++i) {
             int32_t smp = inBuffer->s16[i];
             if (smp < 0) smp = -smp - 1; // take care to keep the max negative in range
-            int32_t clz = __builtin_clz(smp);
-            if (shift > clz) shift = clz;
+            orAccum |= smp;
         }
+
         // A maximum amplitude signal will have 17 leading zeros, which we want to
         // translate to a shift of 8 (for converting 16 bit to 8 bit)
-        shift = 25 - shift;
+        shift = 25 - __builtin_clz(orAccum);
+
         // Never scale by less than 8 to avoid returning unaltered PCM signal.
         if (shift < 3) {
             shift = 3;
         }
         // add one to combine the division by 2 needed after summing left and right channels below
         shift++;
+#endif // BUILD_FLOAT
     } else {
         assert(pContext->mScalingMode == VISUALIZER_SCALING_MODE_AS_PLAYED);
+#ifdef BUILD_FLOAT
+        fscale = 0.5f;  // default divide by 2 to account for sum of L + R.
+#else
         shift = 9;
+#endif // BUILD_FLOAT
     }
 
     uint32_t captIdx;
@@ -386,9 +428,13 @@
             // wrap around
             captIdx = 0;
         }
-        int32_t smp = inBuffer->s16[2 * inIdx] + inBuffer->s16[2 * inIdx + 1];
-        smp = smp >> shift;
+#ifdef BUILD_FLOAT
+        const float smp = (inBuffer->f32[2 * inIdx] + inBuffer->f32[2 * inIdx + 1]) * fscale;
+        buf[captIdx] = clamp8_from_float(smp);
+#else
+        const int32_t smp = (inBuffer->s16[2 * inIdx] + inBuffer->s16[2 * inIdx + 1]) >> shift;
         buf[captIdx] = ((uint8_t)smp)^0x80;
+#endif // BUILD_FLOAT
     }
 
     // XXX the following two should really be atomic, though it probably doesn't
@@ -400,6 +446,15 @@
     }
 
     if (inBuffer->raw != outBuffer->raw) {
+#ifdef BUILD_FLOAT
+        if (pContext->mConfig.outputCfg.accessMode == EFFECT_BUFFER_ACCESS_ACCUMULATE) {
+            for (size_t i = 0; i < sampleLen; ++i) {
+                outBuffer->f32[i] += inBuffer->f32[i];
+            }
+        } else {
+            memcpy(outBuffer->raw, inBuffer->raw, sampleLen * sizeof(float));
+        }
+#else
         if (pContext->mConfig.outputCfg.accessMode == EFFECT_BUFFER_ACCESS_ACCUMULATE) {
             for (size_t i = 0; i < outBuffer->frameCount*2; i++) {
                 outBuffer->s16[i] = clamp16(outBuffer->s16[i] + inBuffer->s16[i]);
@@ -407,6 +462,7 @@
         } else {
             memcpy(outBuffer->raw, inBuffer->raw, outBuffer->frameCount * 2 * sizeof(int16_t));
         }
+#endif // BUILD_FLOAT
     }
     if (pContext->mState != VISUALIZER_STATE_ACTIVE) {
         return -ENODATA;
diff --git a/media/libmedia/IMediaExtractorService.cpp b/media/libmedia/IMediaExtractorService.cpp
index d7533ca..0295abc 100644
--- a/media/libmedia/IMediaExtractorService.cpp
+++ b/media/libmedia/IMediaExtractorService.cpp
@@ -23,7 +23,6 @@
 #include <sys/types.h>
 #include <binder/Parcel.h>
 #include <media/IMediaExtractorService.h>
-#include <media/MediaExtractor.h>
 
 namespace android {
 
diff --git a/media/libmedia/MidiIoWrapper.cpp b/media/libmedia/MidiIoWrapper.cpp
index 5ca3b48..1150d61 100644
--- a/media/libmedia/MidiIoWrapper.cpp
+++ b/media/libmedia/MidiIoWrapper.cpp
@@ -23,6 +23,7 @@
 #include <fcntl.h>
 
 #include <media/MidiIoWrapper.h>
+#include <media/MediaExtractorPluginApi.h>
 
 static int readAt(void *handle, void *buffer, int pos, int size) {
     return ((android::MidiIoWrapper*)handle)->readAt(buffer, pos, size);
@@ -61,6 +62,51 @@
     }
 }
 
+class DataSourceUnwrapper : public DataSourceBase {
+
+public:
+    explicit DataSourceUnwrapper(CDataSource *csource) {
+        mSource = csource;
+    }
+    virtual status_t initCheck() const { return OK; }
+
+    // Returns the number of bytes read, or -1 on failure. It's not an error if
+    // this returns zero; it just means the given offset is equal to, or
+    // beyond, the end of the source.
+    virtual ssize_t readAt(off64_t offset, void *data, size_t size) {
+        return mSource->readAt(mSource->handle, offset, data, size);
+    }
+
+    // May return ERROR_UNSUPPORTED.
+    virtual status_t getSize(off64_t *size) {
+        return mSource->getSize(mSource->handle, size);
+    }
+
+    virtual bool getUri(char * /*uriString*/, size_t /*bufferSize*/) {
+        return false;
+    }
+
+    virtual uint32_t flags() {
+        return 0;
+    }
+
+    virtual void close() {};
+private:
+    CDataSource *mSource;
+};
+
+MidiIoWrapper::MidiIoWrapper(CDataSource *csource) {
+    ALOGV("MidiIoWrapper(CDataSource)");
+    mFd = -1;
+    mDataSource = new DataSourceUnwrapper(csource);
+    off64_t l;
+    if (mDataSource->getSize(&l) == OK) {
+        mLength = l;
+    } else {
+        mLength = 0;
+    }
+}
+
 MidiIoWrapper::~MidiIoWrapper() {
     ALOGV("~MidiIoWrapper");
     if (mFd >= 0) {
diff --git a/media/libmedia/include/media/MidiIoWrapper.h b/media/libmedia/include/media/MidiIoWrapper.h
index b5e565e..6309dda 100644
--- a/media/libmedia/include/media/MidiIoWrapper.h
+++ b/media/libmedia/include/media/MidiIoWrapper.h
@@ -23,11 +23,14 @@
 
 namespace android {
 
+struct CDataSource;
+
 class MidiIoWrapper {
 public:
     explicit MidiIoWrapper(const char *path);
     explicit MidiIoWrapper(int fd, off64_t offset, int64_t size);
     explicit MidiIoWrapper(DataSourceBase *source);
+    explicit MidiIoWrapper(CDataSource *csource);
 
     ~MidiIoWrapper();
 
diff --git a/media/libmediaextractor/Android.bp b/media/libmediaextractor/Android.bp
index b9b47cd..0208ad4 100644
--- a/media/libmediaextractor/Android.bp
+++ b/media/libmediaextractor/Android.bp
@@ -29,7 +29,6 @@
         "MediaBufferGroup.cpp",
         "MediaSource.cpp",
         "MediaTrack.cpp",
-        "MediaExtractor.cpp",
         "MetaData.cpp",
         "MetaDataBase.cpp",
         "VorbisComment.cpp",
diff --git a/media/libmediaextractor/MediaExtractor.cpp b/media/libmediaextractor/MediaExtractor.cpp
deleted file mode 100644
index a6b3dc9..0000000
--- a/media/libmediaextractor/MediaExtractor.cpp
+++ /dev/null
@@ -1,42 +0,0 @@
-/*
- * Copyright (C) 2009 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-//#define LOG_NDEBUG 0
-#define LOG_TAG "MediaExtractor"
-#include <utils/Log.h>
-#include <pwd.h>
-
-#include <media/MediaExtractor.h>
-#include <media/stagefright/foundation/ADebug.h>
-#include <media/stagefright/MetaData.h>
-
-namespace android {
-
-MediaExtractor::MediaExtractor() {
-    if (!LOG_NDEBUG) {
-        uid_t uid = getuid();
-        struct passwd *pw = getpwuid(uid);
-        ALOGV("extractor created in uid: %d (%s)", getuid(), pw->pw_name);
-    }
-}
-
-MediaExtractor::~MediaExtractor() {}
-
-uint32_t MediaExtractor::flags() const {
-    return CAN_SEEK_BACKWARD | CAN_SEEK_FORWARD | CAN_PAUSE | CAN_SEEK;
-}
-
-}  // namespace android
diff --git a/media/libmediaextractor/include/media/DataSource.h b/media/libmediaextractor/include/media/DataSource.h
index 0e59f39..cb96ff5 100644
--- a/media/libmediaextractor/include/media/DataSource.h
+++ b/media/libmediaextractor/include/media/DataSource.h
@@ -22,6 +22,7 @@
 #include <media/stagefright/MediaErrors.h>
 #include <media/DataSourceBase.h>
 #include <media/IDataSource.h>
+#include <media/MediaExtractorPluginHelper.h>
 #include <utils/Errors.h>
 #include <utils/RefBase.h>
 #include <utils/threads.h>
@@ -34,7 +35,7 @@
 
 class DataSource : public DataSourceBase, public virtual RefBase {
 public:
-    DataSource() {}
+    DataSource() : mWrapper(NULL) {}
 
     // returns a pointer to IDataSource if it is wrapped.
     virtual sp<IDataSource> getIDataSource() const {
@@ -69,10 +70,35 @@
         return String8("application/octet-stream");
     }
 
+    CDataSource *wrap() {
+        if (mWrapper) {
+            return mWrapper;
+        }
+        mWrapper = new CDataSource();
+        mWrapper->handle = this;
+
+        mWrapper->readAt = [](void *handle, off64_t offset, void *data, size_t size) -> ssize_t {
+            return ((DataSource*)handle)->readAt(offset, data, size);
+        };
+        mWrapper->getSize = [](void *handle, off64_t *size) -> status_t {
+            return ((DataSource*)handle)->getSize(size);
+        };
+        mWrapper->flags = [](void *handle) -> uint32_t {
+            return ((DataSource*)handle)->flags();
+        };
+        mWrapper->getUri = [](void *handle, char *uriString, size_t bufferSize) -> bool {
+            return ((DataSource*)handle)->getUri(uriString, bufferSize);
+        };
+        return mWrapper;
+    }
+
 protected:
-    virtual ~DataSource() {}
+    virtual ~DataSource() {
+        delete mWrapper;
+    }
 
 private:
+    CDataSource *mWrapper;
     DataSource(const DataSource &);
     DataSource &operator=(const DataSource &);
 };
diff --git a/media/libmediaextractor/include/media/MediaExtractor.h b/media/libmediaextractor/include/media/MediaExtractor.h
deleted file mode 100644
index 4ba98da..0000000
--- a/media/libmediaextractor/include/media/MediaExtractor.h
+++ /dev/null
@@ -1,194 +0,0 @@
-/*
- * Copyright (C) 2009 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef MEDIA_EXTRACTOR_H_
-
-#define MEDIA_EXTRACTOR_H_
-
-#include <stdio.h>
-#include <vector>
-
-#include <utils/Errors.h>
-#include <utils/Log.h>
-#include <utils/RefBase.h>
-
-namespace android {
-
-class DataSourceBase;
-class MetaDataBase;
-struct MediaTrack;
-
-
-class ExtractorAllocTracker {
-public:
-    ExtractorAllocTracker() {
-        ALOGD("extractor allocated: %p", this);
-    }
-    virtual ~ExtractorAllocTracker() {
-        ALOGD("extractor freed: %p", this);
-    }
-};
-
-
-class MediaExtractor
-// : public ExtractorAllocTracker
-{
-public:
-    virtual ~MediaExtractor();
-    virtual size_t countTracks() = 0;
-    virtual MediaTrack *getTrack(size_t index) = 0;
-
-    enum GetTrackMetaDataFlags {
-        kIncludeExtensiveMetaData = 1
-    };
-    virtual status_t getTrackMetaData(
-            MetaDataBase& meta,
-            size_t index, uint32_t flags = 0) = 0;
-
-    // Return container specific meta-data. The default implementation
-    // returns an empty metadata object.
-    virtual status_t getMetaData(MetaDataBase& meta) = 0;
-
-    enum Flags {
-        CAN_SEEK_BACKWARD  = 1,  // the "seek 10secs back button"
-        CAN_SEEK_FORWARD   = 2,  // the "seek 10secs forward button"
-        CAN_PAUSE          = 4,
-        CAN_SEEK           = 8,  // the "seek bar"
-    };
-
-    // If subclasses do _not_ override this, the default is
-    // CAN_SEEK_BACKWARD | CAN_SEEK_FORWARD | CAN_SEEK | CAN_PAUSE
-    virtual uint32_t flags() const;
-
-    virtual status_t setMediaCas(const uint8_t* /*casToken*/, size_t /*size*/) {
-        return INVALID_OPERATION;
-    }
-
-    virtual const char * name() { return "<unspecified>"; }
-
-    typedef MediaExtractor* (*CreatorFunc)(
-            DataSourceBase *source, void *meta);
-    typedef void (*FreeMetaFunc)(void *meta);
-
-    // The sniffer can optionally fill in an opaque object, "meta", that helps
-    // the corresponding extractor initialize its state without duplicating
-    // effort already exerted by the sniffer. If "freeMeta" is given, it will be
-    // called against the opaque object when it is no longer used.
-    typedef CreatorFunc (*SnifferFunc)(
-            DataSourceBase *source, float *confidence,
-            void **meta, FreeMetaFunc *freeMeta);
-
-    typedef struct {
-        const uint8_t b[16];
-    } uuid_t;
-
-    typedef struct {
-        // version number of this structure
-        const uint32_t def_version;
-
-        // A unique identifier for this extractor.
-        // See below for a convenience macro to create this from a string.
-        uuid_t extractor_uuid;
-
-        // Version number of this extractor. When two extractors with the same
-        // uuid are encountered, the one with the largest version number will
-        // be used.
-        const uint32_t extractor_version;
-
-        // a human readable name
-        const char *extractor_name;
-
-        // the sniffer function
-        const SnifferFunc sniff;
-    } ExtractorDef;
-
-    static const uint32_t EXTRACTORDEF_VERSION = 1;
-
-    typedef ExtractorDef (*GetExtractorDef)();
-
-protected:
-    MediaExtractor();
-
-private:
-    MediaExtractor(const MediaExtractor &);
-    MediaExtractor &operator=(const MediaExtractor &);
-};
-
-// purposely not defined anywhere so that this will fail to link if
-// expressions below are not evaluated at compile time
-int invalid_uuid_string(const char *);
-
-template <typename T, size_t N>
-constexpr uint8_t _digitAt_(const T (&s)[N], const size_t n) {
-    return s[n] >= '0' && s[n] <= '9' ? s[n] - '0'
-            : s[n] >= 'a' && s[n] <= 'f' ? s[n] - 'a' + 10
-                    : s[n] >= 'A' && s[n] <= 'F' ? s[n] - 'A' + 10
-                            : invalid_uuid_string("uuid: bad digits");
-}
-
-template <typename T, size_t N>
-constexpr uint8_t _hexByteAt_(const T (&s)[N], size_t n) {
-    return (_digitAt_(s, n) << 4) + _digitAt_(s, n + 1);
-}
-
-constexpr bool _assertIsDash_(char c) {
-    return c == '-' ? true : invalid_uuid_string("Wrong format");
-}
-
-template <size_t N>
-constexpr MediaExtractor::uuid_t constUUID(const char (&s) [N]) {
-    static_assert(N == 37, "uuid: wrong length");
-    return
-            _assertIsDash_(s[8]),
-            _assertIsDash_(s[13]),
-            _assertIsDash_(s[18]),
-            _assertIsDash_(s[23]),
-            MediaExtractor::uuid_t {{
-                _hexByteAt_(s, 0),
-                _hexByteAt_(s, 2),
-                _hexByteAt_(s, 4),
-                _hexByteAt_(s, 6),
-                _hexByteAt_(s, 9),
-                _hexByteAt_(s, 11),
-                _hexByteAt_(s, 14),
-                _hexByteAt_(s, 16),
-                _hexByteAt_(s, 19),
-                _hexByteAt_(s, 21),
-                _hexByteAt_(s, 24),
-                _hexByteAt_(s, 26),
-                _hexByteAt_(s, 28),
-                _hexByteAt_(s, 30),
-                _hexByteAt_(s, 32),
-                _hexByteAt_(s, 34),
-            }};
-}
-// Convenience macro to create a uuid_t from a string literal, which should
-// be formatted as "12345678-1234-1234-1234-123456789abc", as generated by
-// e.g. https://www.uuidgenerator.net/ or the 'uuidgen' linux command.
-// Hex digits may be upper or lower case.
-//
-// The macro call is otherwise equivalent to specifying the structure directly
-// (e.g. UUID("7d613858-5837-4a38-84c5-332d1cddee27") is the same as
-//       {{0x7d, 0x61, 0x38, 0x58, 0x58, 0x37, 0x4a, 0x38,
-//         0x84, 0xc5, 0x33, 0x2d, 0x1c, 0xdd, 0xee, 0x27}})
-
-#define UUID(str) []{ constexpr MediaExtractor::uuid_t uuid = constUUID(str); return uuid; }()
-
-
-
-}  // namespace android
-
-#endif  // MEDIA_EXTRACTOR_H_
diff --git a/media/libmediaextractor/include/media/stagefright/MetaDataBase.h b/media/libmediaextractor/include/media/stagefright/MetaDataBase.h
index dfe34e8..2e9aede 100644
--- a/media/libmediaextractor/include/media/stagefright/MetaDataBase.h
+++ b/media/libmediaextractor/include/media/stagefright/MetaDataBase.h
@@ -53,6 +53,7 @@
     kKeyFrameRate         = 'frmR',  // int32_t (video frame rate fps)
     kKeyBitRate           = 'brte',  // int32_t (bps)
     kKeyMaxBitRate        = 'mxBr',  // int32_t (bps)
+    kKeyBitsPerSample     = 'bits',  // int32_t (bits per sample)
     kKeyStreamHeader      = 'stHd',  // raw data
     kKeyESDS              = 'esds',  // raw data
     kKeyAACProfile        = 'aacp',  // int32_t
@@ -225,6 +226,7 @@
     kKeyExifOffset       = 'exof', // int64_t, Exif data offset
     kKeyExifSize         = 'exsz', // int64_t, Exif data size
     kKeyIsExif           = 'exif', // bool (int32_t) buffer contains exif data block
+    kKeyPcmBigEndian     = 'pcmb', // bool (int32_t)
 };
 
 enum {
diff --git a/media/libmediaplayer2/include/mediaplayer2/MediaPlayer2Types.h b/media/libmediaplayer2/include/mediaplayer2/MediaPlayer2Types.h
index 2fb5a2c..211a5c0 100644
--- a/media/libmediaplayer2/include/mediaplayer2/MediaPlayer2Types.h
+++ b/media/libmediaplayer2/include/mediaplayer2/MediaPlayer2Types.h
@@ -96,17 +96,20 @@
 enum media2_info_type {
     // 0xx
     MEDIA2_INFO_UNKNOWN = 1,
-    // The player was started because it was used as the next player for another
-    // player, which just completed playback
-    MEDIA2_INFO_STARTED_AS_NEXT = 2,
+    // The player just started the playback of this data source.
+    MEDIA2_INFO_DATA_SOURCE_START = 2,
     // The player just pushed the very first video frame for rendering
     MEDIA2_INFO_VIDEO_RENDERING_START = 3,
     // The player just pushed the very first audio frame for rendering
     MEDIA2_INFO_AUDIO_RENDERING_START = 4,
     // The player just completed the playback of this data source
-    MEDIA2_INFO_PLAYBACK_COMPLETE = 5,
-    // The player just completed the playback of the full play list
-    MEDIA2_INFO_PLAYLIST_END = 6,
+    MEDIA2_INFO_DATA_SOURCE_END = 5,
+    // The player just completed the playback of all data sources.
+    // But this is not visible in native code. Just keep this entry for completeness.
+    MEDIA2_INFO_DATA_SOURCE_LIST_END = 6,
+    // The player just completed an iteration of playback loop. This event is sent only when
+    // looping is enabled.
+    MEDIA2_INFO_DATA_SOURCE_REPEAT = 7,
 
     //1xx
     // The player just prepared a data source.
diff --git a/media/libmediaplayer2/nuplayer2/GenericSource2.cpp b/media/libmediaplayer2/nuplayer2/GenericSource2.cpp
index 196b103..e317e23 100644
--- a/media/libmediaplayer2/nuplayer2/GenericSource2.cpp
+++ b/media/libmediaplayer2/nuplayer2/GenericSource2.cpp
@@ -28,13 +28,12 @@
 #include <media/IMediaExtractorService.h>
 #include <media/IMediaSource.h>
 #include <media/MediaHTTPService.h>
-#include <media/MediaExtractor.h>
 #include <media/MediaSource.h>
 #include <media/NdkWrapper.h>
 #include <media/stagefright/foundation/ABuffer.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/AMessage.h>
-#include <media/stagefright/DataSourceFactory.h>
+#include <media/stagefright/ClearDataSourceFactory.h>
 #include <media/stagefright/InterfaceUtils.h>
 #include <media/stagefright/MediaBuffer.h>
 #include <media/stagefright/MediaClock.h>
@@ -368,7 +367,7 @@
             String8 contentType;
 
             if (!strncasecmp("http://", uri, 7) || !strncasecmp("https://", uri, 8)) {
-                mHttpSource = DataSourceFactory::CreateMediaHTTP(mHTTPService);
+                mHttpSource = ClearDataSourceFactory::CreateMediaHTTP(mHTTPService);
                 if (mHttpSource == NULL) {
                     ALOGE("Failed to create http source!");
                     notifyPreparedAndCleanup(UNKNOWN_ERROR);
@@ -378,7 +377,7 @@
 
             mLock.unlock();
             // This might take long time if connection has some issue.
-            sp<DataSource> dataSource = DataSourceFactory::CreateFromURI(
+            sp<DataSource> dataSource = ClearDataSourceFactory::CreateFromURI(
                    mHTTPService, uri, &mUriHeaders, &contentType,
                    static_cast<HTTPBase *>(mHttpSource.get()));
             mLock.lock();
diff --git a/media/libmediaplayer2/nuplayer2/NuPlayer2.cpp b/media/libmediaplayer2/nuplayer2/NuPlayer2.cpp
index 060b698..c649573 100644
--- a/media/libmediaplayer2/nuplayer2/NuPlayer2.cpp
+++ b/media/libmediaplayer2/nuplayer2/NuPlayer2.cpp
@@ -2474,8 +2474,8 @@
     if (mDriver != NULL) {
         sp<NuPlayer2Driver> driver = mDriver.promote();
         if (driver != NULL) {
-            notifyListener(previousSrcId, MEDIA2_INFO, MEDIA2_INFO_PLAYBACK_COMPLETE, 0);
-            notifyListener(mSrcId, MEDIA2_INFO, MEDIA2_INFO_STARTED_AS_NEXT, 0);
+            notifyListener(previousSrcId, MEDIA2_INFO, MEDIA2_INFO_DATA_SOURCE_END, 0);
+            notifyListener(mSrcId, MEDIA2_INFO, MEDIA2_INFO_DATA_SOURCE_START, 0);
         }
     }
 
diff --git a/media/libmediaplayer2/nuplayer2/NuPlayer2CCDecoder.cpp b/media/libmediaplayer2/nuplayer2/NuPlayer2CCDecoder.cpp
index e48e388..e215965 100644
--- a/media/libmediaplayer2/nuplayer2/NuPlayer2CCDecoder.cpp
+++ b/media/libmediaplayer2/nuplayer2/NuPlayer2CCDecoder.cpp
@@ -372,10 +372,16 @@
                             timeUs, mDTVCCPacket->data(), mDTVCCPacket->size());
                     mDTVCCPacket->setRange(0, 0);
                 }
+                if (mDTVCCPacket->size() + 2 > mDTVCCPacket->capacity()) {
+                    return false;
+                }
                 memcpy(mDTVCCPacket->data() + mDTVCCPacket->size(), br.data(), 2);
                 mDTVCCPacket->setRange(0, mDTVCCPacket->size() + 2);
                 br.skipBits(16);
             } else if (mDTVCCPacket->size() > 0 && cc_type == 2) {
+                if (mDTVCCPacket->size() + 2 > mDTVCCPacket->capacity()) {
+                    return false;
+                }
                 memcpy(mDTVCCPacket->data() + mDTVCCPacket->size(), br.data(), 2);
                 mDTVCCPacket->setRange(0, mDTVCCPacket->size() + 2);
                 br.skipBits(16);
@@ -403,6 +409,9 @@
                         line21CCBuf = new ABuffer((cc_count - i) * sizeof(CCData));
                         line21CCBuf->setRange(0, 0);
                     }
+                    if (line21CCBuf->size() + sizeof(cc) > line21CCBuf->capacity()) {
+                        return false;
+                    }
                     memcpy(line21CCBuf->data() + line21CCBuf->size(), &cc, sizeof(cc));
                     line21CCBuf->setRange(0, line21CCBuf->size() + sizeof(CCData));
                 }
@@ -464,6 +473,9 @@
             size_t trackIndex = getTrackIndex(kTrackTypeCEA708, service_number, &trackAdded);
             if (mSelectedTrack == (ssize_t)trackIndex) {
                 sp<ABuffer> ccPacket = new ABuffer(block_size);
+                if (ccPacket->capacity() == 0) {
+                    return false;
+                }
                 memcpy(ccPacket->data(), br.data(), block_size);
                 mCCMap.add(timeUs, ccPacket);
             }
@@ -527,10 +539,12 @@
         ccBuf = new ABuffer(size);
         ccBuf->setRange(0, 0);
 
-        for (ssize_t i = 0; i <= index; ++i) {
-            sp<ABuffer> buf = mCCMap.valueAt(i);
-            memcpy(ccBuf->data() + ccBuf->size(), buf->data(), buf->size());
-            ccBuf->setRange(0, ccBuf->size() + buf->size());
+        if (ccBuf->capacity() > 0) {
+            for (ssize_t i = 0; i <= index; ++i) {
+                sp<ABuffer> buf = mCCMap.valueAt(i);
+                memcpy(ccBuf->data() + ccBuf->size(), buf->data(), buf->size());
+                ccBuf->setRange(0, ccBuf->size() + buf->size());
+            }
         }
     }
 
diff --git a/media/libmediaplayer2/nuplayer2/NuPlayer2Driver.cpp b/media/libmediaplayer2/nuplayer2/NuPlayer2Driver.cpp
index 03d17a5..3069f54 100644
--- a/media/libmediaplayer2/nuplayer2/NuPlayer2Driver.cpp
+++ b/media/libmediaplayer2/nuplayer2/NuPlayer2Driver.cpp
@@ -930,7 +930,12 @@
                             // the last little bit of audio. In looping mode, we need to restart it.
                             mAudioSink->start();
                         }
-                        // don't send completion event when looping
+
+                        sp<AMessage> notify = new AMessage(kWhatNotifyListener, this);
+                        notify->setInt64("srcId", srcId);
+                        notify->setInt32("messageId", MEDIA2_INFO);
+                        notify->setInt32("ext1", MEDIA2_INFO_DATA_SOURCE_REPEAT);
+                        notify->post();
                         return;
                     }
                     if (property_get_bool("persist.debug.sf.stats", false)) {
diff --git a/media/libmediaplayerservice/nuplayer/GenericSource.cpp b/media/libmediaplayerservice/nuplayer/GenericSource.cpp
index 23d66bb..8cd6eda 100644
--- a/media/libmediaplayerservice/nuplayer/GenericSource.cpp
+++ b/media/libmediaplayerservice/nuplayer/GenericSource.cpp
@@ -25,7 +25,6 @@
 #include <cutils/properties.h>
 #include <media/DataSource.h>
 #include <media/MediaBufferHolder.h>
-#include <media/MediaExtractor.h>
 #include <media/MediaSource.h>
 #include <media/IMediaExtractorService.h>
 #include <media/IMediaHTTPService.h>
@@ -38,6 +37,7 @@
 #include <media/stagefright/MediaBuffer.h>
 #include <media/stagefright/MediaClock.h>
 #include <media/stagefright/MediaDefs.h>
+#include <media/stagefright/MediaExtractor.h>
 #include <media/stagefright/MediaExtractorFactory.h>
 #include <media/stagefright/MetaData.h>
 #include <media/stagefright/Utils.h>
diff --git a/media/libmediaplayerservice/nuplayer/NuPlayer.cpp b/media/libmediaplayerservice/nuplayer/NuPlayer.cpp
index a5f5fc6..0784939 100644
--- a/media/libmediaplayerservice/nuplayer/NuPlayer.cpp
+++ b/media/libmediaplayerservice/nuplayer/NuPlayer.cpp
@@ -1120,6 +1120,7 @@
             } else if (what == DecoderBase::kWhatShutdownCompleted) {
                 ALOGV("%s shutdown completed", audio ? "audio" : "video");
                 if (audio) {
+                    Mutex::Autolock autoLock(mDecoderLock);
                     mAudioDecoder.clear();
                     mAudioDecoderError = false;
                     ++mAudioDecoderGeneration;
@@ -1127,6 +1128,7 @@
                     CHECK_EQ((int)mFlushingAudio, (int)SHUTTING_DOWN_DECODER);
                     mFlushingAudio = SHUT_DOWN;
                 } else {
+                    Mutex::Autolock autoLock(mDecoderLock);
                     mVideoDecoder.clear();
                     mVideoDecoderError = false;
                     ++mVideoDecoderGeneration;
@@ -1447,29 +1449,6 @@
             break;
         }
 
-        case kWhatGetStats:
-        {
-            ALOGV("kWhatGetStats");
-
-            Vector<sp<AMessage>> *trackStats;
-            CHECK(msg->findPointer("trackstats", (void**)&trackStats));
-
-            trackStats->clear();
-            if (mVideoDecoder != NULL) {
-                trackStats->push_back(mVideoDecoder->getStats());
-            }
-            if (mAudioDecoder != NULL) {
-                trackStats->push_back(mAudioDecoder->getStats());
-            }
-
-            // respond for synchronization
-            sp<AMessage> response = new AMessage;
-            sp<AReplyToken> replyID;
-            CHECK(msg->senderAwaitsResponse(&replyID));
-            response->postReply(replyID);
-            break;
-        }
-
         default:
             TRESPASS();
             break;
@@ -1817,6 +1796,7 @@
           (long long)currentPositionUs, forceNonOffload, needsToCreateAudioDecoder);
     if (mAudioDecoder != NULL) {
         mAudioDecoder->pause();
+        Mutex::Autolock autoLock(mDecoderLock);
         mAudioDecoder.clear();
         mAudioDecoderError = false;
         ++mAudioDecoderGeneration;
@@ -1935,6 +1915,8 @@
         }
     }
 
+    Mutex::Autolock autoLock(mDecoderLock);
+
     if (audio) {
         sp<AMessage> notify = new AMessage(kWhatAudioNotify, this);
         ++mAudioDecoderGeneration;
@@ -2236,13 +2218,15 @@
 void NuPlayer::getStats(Vector<sp<AMessage> > *trackStats) {
     CHECK(trackStats != NULL);
 
-    ALOGV("NuPlayer::getStats()");
-    sp<AMessage> msg = new AMessage(kWhatGetStats, this);
-    msg->setPointer("trackstats", trackStats);
+    trackStats->clear();
 
-    sp<AMessage> response;
-    (void) msg->postAndAwaitResponse(&response);
-    // response is for synchronization, ignore contents
+    Mutex::Autolock autoLock(mDecoderLock);
+    if (mVideoDecoder != NULL) {
+        trackStats->push_back(mVideoDecoder->getStats());
+    }
+    if (mAudioDecoder != NULL) {
+        trackStats->push_back(mAudioDecoder->getStats());
+    }
 }
 
 sp<MetaData> NuPlayer::getFileMeta() {
diff --git a/media/libmediaplayerservice/nuplayer/NuPlayer.h b/media/libmediaplayerservice/nuplayer/NuPlayer.h
index e400d16..9f5be06 100644
--- a/media/libmediaplayerservice/nuplayer/NuPlayer.h
+++ b/media/libmediaplayerservice/nuplayer/NuPlayer.h
@@ -159,7 +159,6 @@
         kWhatPrepareDrm                 = 'pDrm',
         kWhatReleaseDrm                 = 'rDrm',
         kWhatMediaClockNotify           = 'mckN',
-        kWhatGetStats                   = 'gSts',
     };
 
     wp<NuPlayerDriver> mDriver;
@@ -175,6 +174,7 @@
     sp<DecoderBase> mVideoDecoder;
     bool mOffloadAudio;
     sp<DecoderBase> mAudioDecoder;
+    Mutex mDecoderLock;  // guard |mAudioDecoder| and |mVideoDecoder|.
     sp<CCDecoder> mCCDecoder;
     sp<Renderer> mRenderer;
     sp<ALooper> mRendererLooper;
diff --git a/media/libmediaplayerservice/nuplayer/NuPlayerDrm.cpp b/media/libmediaplayerservice/nuplayer/NuPlayerDrm.cpp
index bde0862..8d876da 100644
--- a/media/libmediaplayerservice/nuplayer/NuPlayerDrm.cpp
+++ b/media/libmediaplayerservice/nuplayer/NuPlayerDrm.cpp
@@ -239,8 +239,14 @@
         size_t *encryptedbytes)
 {
     // size needed to store all the crypto data
-    size_t cryptosize = sizeof(CryptoInfo) +
-                        sizeof(CryptoPlugin::SubSample) * numSubSamples;
+    size_t cryptosize;
+    // sizeof(CryptoInfo) + sizeof(CryptoPlugin::SubSample) * numSubSamples;
+    if (__builtin_mul_overflow(sizeof(CryptoPlugin::SubSample), numSubSamples, &cryptosize) ||
+            __builtin_add_overflow(cryptosize, sizeof(CryptoInfo), &cryptosize)) {
+        ALOGE("crypto size overflow");
+        return NULL;
+    }
+
     CryptoInfo *ret = (CryptoInfo*) malloc(cryptosize);
     if (ret == NULL) {
         ALOGE("couldn't allocate %zu bytes", cryptosize);
diff --git a/media/libnblog/NBLog.cpp b/media/libnblog/NBLog.cpp
index d6fa3e3..d659445 100644
--- a/media/libnblog/NBLog.cpp
+++ b/media/libnblog/NBLog.cpp
@@ -20,11 +20,8 @@
 
 #include <algorithm>
 #include <climits>
-#include <deque>
-#include <fstream>
-#include <iostream>
 #include <math.h>
-#include <numeric>
+#include <unordered_set>
 #include <vector>
 #include <stdarg.h>
 #include <stdint.h>
@@ -64,7 +61,11 @@
 // ---------------------------------------------------------------------------
 
 /*static*/
-std::unique_ptr<NBLog::AbstractEntry> NBLog::AbstractEntry::buildEntry(const uint8_t *ptr) {
+std::unique_ptr<NBLog::AbstractEntry> NBLog::AbstractEntry::buildEntry(const uint8_t *ptr)
+{
+    if (ptr == nullptr) {
+        return nullptr;
+    }
     const uint8_t type = EntryIterator(ptr)->type;
     switch (type) {
     case EVENT_START_FMT:
@@ -78,31 +79,33 @@
     }
 }
 
-NBLog::AbstractEntry::AbstractEntry(const uint8_t *entry) : mEntry(entry) {
+NBLog::AbstractEntry::AbstractEntry(const uint8_t *entry) : mEntry(entry)
+{
 }
 
 // ---------------------------------------------------------------------------
 
-NBLog::EntryIterator NBLog::FormatEntry::begin() const {
+NBLog::EntryIterator NBLog::FormatEntry::begin() const
+{
     return EntryIterator(mEntry);
 }
 
-const char *NBLog::FormatEntry::formatString() const {
+const char *NBLog::FormatEntry::formatString() const
+{
     return (const char*) mEntry + offsetof(entry, data);
 }
 
-size_t NBLog::FormatEntry::formatStringLength() const {
+size_t NBLog::FormatEntry::formatStringLength() const
+{
     return mEntry[offsetof(entry, length)];
 }
 
-NBLog::EntryIterator NBLog::FormatEntry::args() const {
+NBLog::EntryIterator NBLog::FormatEntry::args() const
+{
     auto it = begin();
-    // skip start fmt
-    ++it;
-    // skip timestamp
-    ++it;
-    // skip hash
-    ++it;
+    ++it; // skip start fmt
+    ++it; // skip timestamp
+    ++it; // skip hash
     // Skip author if present
     if (it->type == EVENT_AUTHOR) {
         ++it;
@@ -110,54 +113,47 @@
     return it;
 }
 
-int64_t NBLog::FormatEntry::timestamp() const {
+int64_t NBLog::FormatEntry::timestamp() const
+{
     auto it = begin();
-    // skip start fmt
-    ++it;
+    ++it; // skip start fmt
     return it.payload<int64_t>();
 }
 
-NBLog::log_hash_t NBLog::FormatEntry::hash() const {
+NBLog::log_hash_t NBLog::FormatEntry::hash() const
+{
     auto it = begin();
-    // skip start fmt
-    ++it;
-    // skip timestamp
-    ++it;
+    ++it; // skip start fmt
+    ++it; // skip timestamp
     // unaligned 64-bit read not supported
     log_hash_t hash;
     memcpy(&hash, it->data, sizeof(hash));
     return hash;
 }
 
-int NBLog::FormatEntry::author() const {
+int NBLog::FormatEntry::author() const
+{
     auto it = begin();
-    // skip start fmt
-    ++it;
-    // skip timestamp
-    ++it;
-    // skip hash
-    ++it;
+    ++it; // skip start fmt
+    ++it; // skip timestamp
+    ++it; // skip hash
     // if there is an author entry, return it, return -1 otherwise
-    if (it->type == EVENT_AUTHOR) {
-        return it.payload<int>();
-    }
-    return -1;
+    return it->type == EVENT_AUTHOR ? it.payload<int>() : -1;
 }
 
 NBLog::EntryIterator NBLog::FormatEntry::copyWithAuthor(
-        std::unique_ptr<audio_utils_fifo_writer> &dst, int author) const {
+        std::unique_ptr<audio_utils_fifo_writer> &dst, int author) const
+{
     auto it = begin();
-    // copy fmt start entry
-    it.copyTo(dst);
-    // copy timestamp
-    (++it).copyTo(dst);    // copy hash
-    (++it).copyTo(dst);
+    it.copyTo(dst);     // copy fmt start entry
+    (++it).copyTo(dst); // copy timestamp
+    (++it).copyTo(dst); // copy hash
     // insert author entry
-    size_t authorEntrySize = NBLog::Entry::kOverhead + sizeof(author);
+    size_t authorEntrySize = Entry::kOverhead + sizeof(author);
     uint8_t authorEntry[authorEntrySize];
     authorEntry[offsetof(entry, type)] = EVENT_AUTHOR;
     authorEntry[offsetof(entry, length)] =
-        authorEntry[authorEntrySize + NBLog::Entry::kPreviousLengthOffset] =
+        authorEntry[authorEntrySize + Entry::kPreviousLengthOffset] =
         sizeof(author);
     *(int*) (&authorEntry[offsetof(entry, data)]) = author;
     dst->write(authorEntry, authorEntrySize);
@@ -170,86 +166,104 @@
     return it;
 }
 
-void NBLog::EntryIterator::copyTo(std::unique_ptr<audio_utils_fifo_writer> &dst) const {
-    size_t length = ptr[offsetof(entry, length)] + NBLog::Entry::kOverhead;
-    dst->write(ptr, length);
+void NBLog::EntryIterator::copyTo(std::unique_ptr<audio_utils_fifo_writer> &dst) const
+{
+    size_t length = mPtr[offsetof(entry, length)] + Entry::kOverhead;
+    dst->write(mPtr, length);
 }
 
-void NBLog::EntryIterator::copyData(uint8_t *dst) const {
-    memcpy((void*) dst, ptr + offsetof(entry, data), ptr[offsetof(entry, length)]);
+void NBLog::EntryIterator::copyData(uint8_t *dst) const
+{
+    memcpy((void*) dst, mPtr + offsetof(entry, data), mPtr[offsetof(entry, length)]);
 }
 
-NBLog::EntryIterator::EntryIterator()
-    : ptr(nullptr) {}
+NBLog::EntryIterator::EntryIterator()   // Dummy initialization.
+    : mPtr(nullptr)
+{
+}
 
 NBLog::EntryIterator::EntryIterator(const uint8_t *entry)
-    : ptr(entry) {}
+    : mPtr(entry)
+{
+}
 
 NBLog::EntryIterator::EntryIterator(const NBLog::EntryIterator &other)
-    : ptr(other.ptr) {}
-
-const NBLog::entry& NBLog::EntryIterator::operator*() const {
-    return *(entry*) ptr;
+    : mPtr(other.mPtr)
+{
 }
 
-const NBLog::entry* NBLog::EntryIterator::operator->() const {
-    return (entry*) ptr;
+const NBLog::entry& NBLog::EntryIterator::operator*() const
+{
+    return *(entry*) mPtr;
 }
 
-NBLog::EntryIterator& NBLog::EntryIterator::operator++() {
-    ptr += ptr[offsetof(entry, length)] + NBLog::Entry::kOverhead;
+const NBLog::entry* NBLog::EntryIterator::operator->() const
+{
+    return (entry*) mPtr;
+}
+
+NBLog::EntryIterator& NBLog::EntryIterator::operator++()
+{
+    mPtr += mPtr[offsetof(entry, length)] + Entry::kOverhead;
     return *this;
 }
 
-NBLog::EntryIterator& NBLog::EntryIterator::operator--() {
-    ptr -= ptr[NBLog::Entry::kPreviousLengthOffset] + NBLog::Entry::kOverhead;
+NBLog::EntryIterator& NBLog::EntryIterator::operator--()
+{
+    mPtr -= mPtr[Entry::kPreviousLengthOffset] + Entry::kOverhead;
     return *this;
 }
 
-NBLog::EntryIterator NBLog::EntryIterator::next() const {
+NBLog::EntryIterator NBLog::EntryIterator::next() const
+{
     EntryIterator aux(*this);
     return ++aux;
 }
 
-NBLog::EntryIterator NBLog::EntryIterator::prev() const {
+NBLog::EntryIterator NBLog::EntryIterator::prev() const
+{
     EntryIterator aux(*this);
     return --aux;
 }
 
-int NBLog::EntryIterator::operator-(const NBLog::EntryIterator &other) const {
-    return ptr - other.ptr;
+int NBLog::EntryIterator::operator-(const NBLog::EntryIterator &other) const
+{
+    return mPtr - other.mPtr;
 }
 
-bool NBLog::EntryIterator::operator!=(const EntryIterator &other) const {
-    return ptr != other.ptr;
+bool NBLog::EntryIterator::operator!=(const EntryIterator &other) const
+{
+    return mPtr != other.mPtr;
 }
 
-bool NBLog::EntryIterator::hasConsistentLength() const {
-    return ptr[offsetof(entry, length)] == ptr[ptr[offsetof(entry, length)] +
-        NBLog::Entry::kOverhead + NBLog::Entry::kPreviousLengthOffset];
+bool NBLog::EntryIterator::hasConsistentLength() const
+{
+    return mPtr[offsetof(entry, length)] == mPtr[mPtr[offsetof(entry, length)] +
+        Entry::kOverhead + Entry::kPreviousLengthOffset];
 }
 
 // ---------------------------------------------------------------------------
 
-int64_t NBLog::HistogramEntry::timestamp() const {
+int64_t NBLog::HistogramEntry::timestamp() const
+{
     return EntryIterator(mEntry).payload<HistTsEntry>().ts;
 }
 
-NBLog::log_hash_t NBLog::HistogramEntry::hash() const {
+NBLog::log_hash_t NBLog::HistogramEntry::hash() const
+{
     return EntryIterator(mEntry).payload<HistTsEntry>().hash;
 }
 
-int NBLog::HistogramEntry::author() const {
+int NBLog::HistogramEntry::author() const
+{
     EntryIterator it(mEntry);
-    if (it->length == sizeof(HistTsEntryWithAuthor)) {
-        return it.payload<HistTsEntryWithAuthor>().author;
-    } else {
-        return -1;
-    }
+    return it->length == sizeof(HistTsEntryWithAuthor)
+            ? it.payload<HistTsEntryWithAuthor>().author : -1;
 }
 
 NBLog::EntryIterator NBLog::HistogramEntry::copyWithAuthor(
-        std::unique_ptr<audio_utils_fifo_writer> &dst, int author) const {
+        std::unique_ptr<audio_utils_fifo_writer> &dst, int author) const
+{
     // Current histogram entry has {type, length, struct HistTsEntry, length}.
     // We now want {type, length, struct HistTsEntryWithAuthor, length}
     uint8_t buffer[Entry::kOverhead + sizeof(HistTsEntryWithAuthor)];
@@ -438,7 +452,7 @@
         return;
     }
     Entry entry = Entry(EVENT_END_FMT, NULL, 0);
-    log(&entry, true);
+    log(entry, true);
 }
 
 void NBLog::Writer::logHash(log_hash_t hash)
@@ -464,12 +478,19 @@
     }
 }
 
+void NBLog::Writer::logMonotonicCycleTime(uint32_t monotonicNs)
+{
+    if (!mEnabled) {
+        return;
+    }
+    log(EVENT_MONOTONIC_CYCLE_TIME, &monotonicNs, sizeof(&monotonicNs));
+}
+
 void NBLog::Writer::logFormat(const char *fmt, log_hash_t hash, ...)
 {
     if (!mEnabled) {
         return;
     }
-
     va_list ap;
     va_start(ap, hash);
     Writer::logVFormat(fmt, hash, ap);
@@ -550,20 +571,20 @@
         return;
     }
     Entry etr(event, data, length);
-    log(&etr, true /*trusted*/);
+    log(etr, true /*trusted*/);
 }
 
-void NBLog::Writer::log(const NBLog::Entry *etr, bool trusted)
+void NBLog::Writer::log(const NBLog::Entry &etr, bool trusted)
 {
     if (!mEnabled) {
         return;
     }
     if (!trusted) {
-        log(etr->mEvent, etr->mData, etr->mLength);
+        log(etr.mEvent, etr.mData, etr.mLength);
         return;
     }
-    size_t need = etr->mLength + Entry::kOverhead;    // mEvent, mLength, data[mLength], mLength
-                                                      // need = number of bytes written to FIFO
+    const size_t need = etr.mLength + Entry::kOverhead; // mEvent, mLength, data[mLength], mLength
+                                                        // need = number of bytes written to FIFO
 
     // FIXME optimize this using memcpy for the data part of the Entry.
     // The Entry could have a method copyTo(ptr, offset, size) to optimize the copy.
@@ -571,7 +592,7 @@
     uint8_t temp[Entry::kMaxLength + Entry::kOverhead];
     // write this data to temp array
     for (size_t i = 0; i < need; i++) {
-        temp[i] = etr->copyEntryDataAt(i);
+        temp[i] = etr.copyEntryDataAt(i);
     }
     // write to circular buffer
     mFifoWriter->write(temp, need);
@@ -688,15 +709,21 @@
 
 // ---------------------------------------------------------------------------
 
-const std::set<NBLog::Event> NBLog::Reader::startingTypes {NBLog::Event::EVENT_START_FMT,
+const std::unordered_set<NBLog::Event> NBLog::Reader::startingTypes {
+        NBLog::Event::EVENT_START_FMT,
         NBLog::Event::EVENT_HISTOGRAM_ENTRY_TS,
-        NBLog::Event::EVENT_AUDIO_STATE};
-const std::set<NBLog::Event> NBLog::Reader::endingTypes   {NBLog::Event::EVENT_END_FMT,
+        NBLog::Event::EVENT_AUDIO_STATE,
+        NBLog::Event::EVENT_MONOTONIC_CYCLE_TIME
+};
+const std::unordered_set<NBLog::Event> NBLog::Reader::endingTypes   {
+        NBLog::Event::EVENT_END_FMT,
         NBLog::Event::EVENT_HISTOGRAM_ENTRY_TS,
-        NBLog::Event::EVENT_AUDIO_STATE};
+        NBLog::Event::EVENT_AUDIO_STATE,
+        NBLog::Event::EVENT_MONOTONIC_CYCLE_TIME
+};
 
-NBLog::Reader::Reader(const void *shared, size_t size)
-    : mFd(-1), mIndent(0), mLost(0),
+NBLog::Reader::Reader(const void *shared, size_t size, const std::string &name)
+    : mName(name),
       mShared((/*const*/ Shared *) shared), /*mIMemory*/
       mFifo(mShared != NULL ?
         new audio_utils_fifo(size, sizeof(uint8_t),
@@ -705,8 +732,8 @@
 {
 }
 
-NBLog::Reader::Reader(const sp<IMemory>& iMemory, size_t size)
-    : Reader(iMemory != 0 ? (Shared *) iMemory->pointer() : NULL, size)
+NBLog::Reader::Reader(const sp<IMemory>& iMemory, size_t size, const std::string &name)
+    : Reader(iMemory != 0 ? (Shared *) iMemory->pointer() : NULL, size, name)
 {
     mIMemory = iMemory;
 }
@@ -718,7 +745,7 @@
 }
 
 const uint8_t *NBLog::Reader::findLastEntryOfTypes(const uint8_t *front, const uint8_t *back,
-                                            const std::set<Event> &types) {
+                                            const std::unordered_set<Event> &types) {
     while (back + Entry::kPreviousLengthOffset >= front) {
         const uint8_t *prev = back - back[Entry::kPreviousLengthOffset] - Entry::kOverhead;
         if (prev < front || prev + prev[offsetof(entry, length)] +
@@ -738,29 +765,47 @@
 // Copies content of a Reader FIFO into its Snapshot
 // The Snapshot has the same raw data, but represented as a sequence of entries
 // and an EntryIterator making it possible to process the data.
-std::unique_ptr<NBLog::Reader::Snapshot> NBLog::Reader::getSnapshot()
+std::unique_ptr<NBLog::Snapshot> NBLog::Reader::getSnapshot()
 {
     if (mFifoReader == NULL) {
-        return std::unique_ptr<NBLog::Reader::Snapshot>(new Snapshot());
+        return std::make_unique<Snapshot>();
     }
-    // make a copy to avoid race condition with writer
-    size_t capacity = mFifo->capacity();
 
     // This emulates the behaviour of audio_utils_fifo_reader::read, but without incrementing the
     // reader index. The index is incremented after handling corruption, to after the last complete
     // entry of the buffer
-    size_t lost;
+    size_t lost = 0;
     audio_utils_iovec iovec[2];
-    ssize_t availToRead = mFifoReader->obtain(iovec, capacity, NULL /*timeout*/, &lost);
+    const size_t capacity = mFifo->capacity();
+    ssize_t availToRead;
+    // A call to audio_utils_fifo_reader::obtain() places the read pointer one buffer length
+    // before the writer's pointer (since mFifoReader was constructed with flush=false). The
+    // do while loop is an attempt to read all of the FIFO's contents regardless of how behind
+    // the reader is with respect to the writer. However, the following scheduling sequence is
+    // possible and can lead to a starvation situation:
+    // - Writer T1 writes, overrun with respect to Reader T2
+    // - T2 calls obtain() and gets EOVERFLOW, T2 ptr placed one buffer size behind T1 ptr
+    // - T1 write, overrun
+    // - T2 obtain(), EOVERFLOW (and so on...)
+    // To address this issue, we limit the number of tries for the reader to catch up with
+    // the writer.
+    int tries = 0;
+    size_t lostTemp;
+    do {
+        availToRead = mFifoReader->obtain(iovec, capacity, NULL /*timeout*/, &lostTemp);
+        lost += lostTemp;
+    } while (availToRead < 0 || ++tries <= kMaxObtainTries);
+
     if (availToRead <= 0) {
-        return std::unique_ptr<NBLog::Reader::Snapshot>(new Snapshot());
+        ALOGW_IF(availToRead < 0, "NBLog Reader %s failed to catch up with Writer", mName.c_str());
+        return std::make_unique<Snapshot>();
     }
 
     std::unique_ptr<Snapshot> snapshot(new Snapshot(availToRead));
     memcpy(snapshot->mData, (const char *) mFifo->buffer() + iovec[0].mOffset, iovec[0].mLength);
     if (iovec[1].mLength > 0) {
         memcpy(snapshot->mData + (iovec[0].mLength),
-            (const char *) mFifo->buffer() + iovec[1].mOffset, iovec[1].mLength);
+                (const char *) mFifo->buffer() + iovec[1].mOffset, iovec[1].mLength);
     }
 
     // Handle corrupted buffer
@@ -800,22 +845,16 @@
 
     snapshot->mLost = lost;
     return snapshot;
-
 }
 
 // Takes raw content of the local merger FIFO, processes log entries, and
 // writes the data to a map of class PerformanceAnalysis, based on their thread ID.
-void NBLog::MergeReader::getAndProcessSnapshot(NBLog::Reader::Snapshot &snapshot)
+void NBLog::MergeReader::getAndProcessSnapshot(NBLog::Snapshot &snapshot, int author)
 {
-    String8 timestamp, body;
-
-    for (auto entry = snapshot.begin(); entry != snapshot.end();) {
-        switch (entry->type) {
-        case EVENT_START_FMT:
-            entry = handleFormat(FormatEntry(entry), &timestamp, &body);
-            break;
+    for (const entry &etr : snapshot) {
+        switch (etr.type) {
         case EVENT_HISTOGRAM_ENTRY_TS: {
-            HistTsEntryWithAuthor *data = (HistTsEntryWithAuthor *) (entry->data);
+            HistTsEntry *data = (HistTsEntry *) (etr.data);
             // TODO This memcpies are here to avoid unaligned memory access crash.
             // There's probably a more efficient way to do it
             log_hash_t hash;
@@ -824,61 +863,84 @@
             memcpy(&ts, &data->ts, sizeof(ts));
             // TODO: hash for histogram ts and audio state need to match
             // and correspond to audio production source file location
-            mThreadPerformanceAnalysis[data->author][0 /*hash*/].logTsEntry(ts);
-            ++entry;
-            break;
-        }
+            mThreadPerformanceAnalysis[author][0 /*hash*/].logTsEntry(ts);
+        } break;
         case EVENT_AUDIO_STATE: {
-            HistTsEntryWithAuthor *data = (HistTsEntryWithAuthor *) (entry->data);
+            HistTsEntry *data = (HistTsEntry *) (etr.data);
             // TODO This memcpies are here to avoid unaligned memory access crash.
             // There's probably a more efficient way to do it
             log_hash_t hash;
             memcpy(&hash, &(data->hash), sizeof(hash));
-            // TODO: remove ts if unused
-            int64_t ts;
-            memcpy(&ts, &data->ts, sizeof(ts));
-            mThreadPerformanceAnalysis[data->author][0 /*hash*/].handleStateChange();
-            ++entry;
-            break;
-        }
+            mThreadPerformanceAnalysis[author][0 /*hash*/].handleStateChange();
+        } break;
         case EVENT_END_FMT:
-            body.appendFormat("warning: got to end format event");
-            ++entry;
-            break;
         case EVENT_RESERVED:
+        case EVENT_UPPER_BOUND:
+            ALOGW("warning: unexpected event %d", etr.type);
         default:
-            body.appendFormat("warning: unexpected event %d", entry->type);
-            ++entry;
             break;
         }
     }
-    // FIXME: decide whether to print the warnings here or elsewhere
-    if (!body.isEmpty()) {
-        dumpLine(timestamp, body);
-    }
 }
 
 void NBLog::MergeReader::getAndProcessSnapshot()
 {
-    // get a snapshot, process it
-    std::unique_ptr<Snapshot> snap = getSnapshot();
-    getAndProcessSnapshot(*snap);
+    // get a snapshot of each reader and process them
+    // TODO insert lock here
+    const size_t nLogs = mReaders.size();
+    std::vector<std::unique_ptr<Snapshot>> snapshots(nLogs);
+    for (size_t i = 0; i < nLogs; i++) {
+        snapshots[i] = mReaders[i]->getSnapshot();
+    }
+    // TODO unlock lock here
+    for (size_t i = 0; i < nLogs; i++) {
+        if (snapshots[i] != nullptr) {
+            getAndProcessSnapshot(*(snapshots[i]), i);
+        }
+    }
 }
 
-void NBLog::MergeReader::dump(int fd, int indent) {
+void NBLog::MergeReader::dump(int fd, int indent)
+{
     // TODO: add a mutex around media.log dump
     ReportPerformance::dump(fd, indent, mThreadPerformanceAnalysis);
 }
 
-// Writes a string to the console
-void NBLog::Reader::dumpLine(const String8 &timestamp, String8 &body)
+// TODO for future compatibility, would prefer to have a dump() go to string, and then go
+// to fd only when invoked through binder.
+void NBLog::DumpReader::dump(int fd, size_t indent)
 {
-    if (mFd >= 0) {
-        dprintf(mFd, "%.*s%s %s\n", mIndent, "", timestamp.string(), body.string());
-    } else {
-        ALOGI("%.*s%s %s", mIndent, "", timestamp.string(), body.string());
+    if (fd < 0) return;
+    std::unique_ptr<Snapshot> snapshot = getSnapshot();
+    if (snapshot == nullptr) {
+        return;
     }
-    body.clear();
+    String8 timestamp, body;
+
+    // TODO all logged types should have a printable format.
+    for (auto it = snapshot->begin(); it != snapshot->end(); ++it) {
+        switch (it->type) {
+        case EVENT_START_FMT:
+            it = handleFormat(FormatEntry(it), &timestamp, &body);
+            break;
+        case EVENT_MONOTONIC_CYCLE_TIME: {
+            uint32_t monotonicNs;
+            memcpy(&monotonicNs, it->data, sizeof(monotonicNs));
+            body.appendFormat("Thread cycle took %u ns", monotonicNs);
+        } break;
+        case EVENT_END_FMT:
+        case EVENT_RESERVED:
+        case EVENT_UPPER_BOUND:
+            body.appendFormat("warning: unexpected event %d", it->type);
+        default:
+            break;
+        }
+        if (!body.isEmpty()) {
+            dprintf(fd, "%.*s%s %s\n", (int)indent, "", timestamp.string(), body.string());
+            body.clear();
+        }
+        timestamp.clear();
+    }
 }
 
 bool NBLog::Reader::isIMemory(const sp<IMemory>& iMemory) const
@@ -886,52 +948,69 @@
     return iMemory != 0 && mIMemory != 0 && iMemory->pointer() == mIMemory->pointer();
 }
 
-// ---------------------------------------------------------------------------
-
-void NBLog::appendTimestamp(String8 *body, const void *data) {
+void NBLog::DumpReader::appendTimestamp(String8 *body, const void *data)
+{
+    if (body == nullptr || data == nullptr) {
+        return;
+    }
     int64_t ts;
     memcpy(&ts, data, sizeof(ts));
     body->appendFormat("[%d.%03d]", (int) (ts / (1000 * 1000 * 1000)),
                     (int) ((ts / (1000 * 1000)) % 1000));
 }
 
-void NBLog::appendInt(String8 *body, const void *data) {
+void NBLog::DumpReader::appendInt(String8 *body, const void *data)
+{
+    if (body == nullptr || data == nullptr) {
+        return;
+    }
     int x = *((int*) data);
     body->appendFormat("<%d>", x);
 }
 
-void NBLog::appendFloat(String8 *body, const void *data) {
+void NBLog::DumpReader::appendFloat(String8 *body, const void *data)
+{
+    if (body == nullptr || data == nullptr) {
+        return;
+    }
     float f;
-    memcpy(&f, data, sizeof(float));
+    memcpy(&f, data, sizeof(f));
     body->appendFormat("<%f>", f);
 }
 
-void NBLog::appendPID(String8 *body, const void* data, size_t length) {
+void NBLog::DumpReader::appendPID(String8 *body, const void* data, size_t length)
+{
+    if (body == nullptr || data == nullptr) {
+        return;
+    }
     pid_t id = *((pid_t*) data);
     char * name = &((char*) data)[sizeof(pid_t)];
     body->appendFormat("<PID: %d, name: %.*s>", id, (int) (length - sizeof(pid_t)), name);
 }
 
-String8 NBLog::bufferDump(const uint8_t *buffer, size_t size)
+String8 NBLog::DumpReader::bufferDump(const uint8_t *buffer, size_t size)
 {
     String8 str;
+    if (buffer == nullptr) {
+        return str;
+    }
     str.append("[ ");
-    for(size_t i = 0; i < size; i++)
-    {
+    for(size_t i = 0; i < size; i++) {
         str.appendFormat("%d ", buffer[i]);
     }
     str.append("]");
     return str;
 }
 
-String8 NBLog::bufferDump(const EntryIterator &it)
+String8 NBLog::DumpReader::bufferDump(const EntryIterator &it)
 {
     return bufferDump(it, it->length + Entry::kOverhead);
 }
 
-NBLog::EntryIterator NBLog::Reader::handleFormat(const FormatEntry &fmtEntry,
-                                                         String8 *timestamp,
-                                                         String8 *body) {
+NBLog::EntryIterator NBLog::DumpReader::handleFormat(const FormatEntry &fmtEntry,
+                                                           String8 *timestamp,
+                                                           String8 *body)
+{
     // log timestamp
     int64_t ts = fmtEntry.timestamp();
     timestamp->clear();
@@ -947,7 +1026,7 @@
     handleAuthor(fmtEntry, body);
 
     // log string
-    NBLog::EntryIterator arg = fmtEntry.args();
+    EntryIterator arg = fmtEntry.args();
 
     const char* fmt = fmtEntry.formatString();
     size_t fmt_length = fmtEntry.formatStringLength();
@@ -1016,7 +1095,6 @@
         ++arg;
     }
     ALOGW_IF(arg->type != EVENT_END_FMT, "Expected end of format, got %d", arg->type);
-    ++arg;
     return arg;
 }
 
@@ -1026,13 +1104,14 @@
         new audio_utils_fifo(size, sizeof(uint8_t),
             mShared->mBuffer, mShared->mRear, NULL /*throttlesFront*/) : NULL),
       mFifoWriter(mFifo != NULL ? new audio_utils_fifo_writer(*mFifo) : NULL)
-      {}
+{
+}
 
-void NBLog::Merger::addReader(const NBLog::NamedReader &reader) {
-
+void NBLog::Merger::addReader(const sp<NBLog::Reader> &reader)
+{
     // FIXME This is called by binder thread in MediaLogService::registerWriter
-    //       but the access to shared variable mNamedReaders is not yet protected by a lock.
-    mNamedReaders.push_back(reader);
+    //       but the access to shared variable mReaders is not yet protected by a lock.
+    mReaders.push_back(reader);
 }
 
 // items placed in priority queue during merge
@@ -1044,25 +1123,23 @@
     MergeItem(int64_t ts, int index): ts(ts), index(index) {}
 };
 
-// operators needed for priority queue in merge
-// bool operator>(const int64_t &t1, const int64_t &t2) {
-//     return t1.tv_sec > t2.tv_sec || (t1.tv_sec == t2.tv_sec && t1.tv_nsec > t2.tv_nsec);
-// }
-
-bool operator>(const struct MergeItem &i1, const struct MergeItem &i2) {
+bool operator>(const struct MergeItem &i1, const struct MergeItem &i2)
+{
     return i1.ts > i2.ts || (i1.ts == i2.ts && i1.index > i2.index);
 }
 
 // Merge registered readers, sorted by timestamp, and write data to a single FIFO in local memory
-void NBLog::Merger::merge() {
-    // FIXME This is called by merge thread
-    //       but the access to shared variable mNamedReaders is not yet protected by a lock.
-    int nLogs = mNamedReaders.size();
-    std::vector<std::unique_ptr<NBLog::Reader::Snapshot>> snapshots(nLogs);
-    std::vector<NBLog::EntryIterator> offsets(nLogs);
+void NBLog::Merger::merge()
+{
+    if (true) return; // Merging is not necessary at the moment, so this is to disable it
+                      // and bypass compiler warnings about member variables not being used.
+    const int nLogs = mReaders.size();
+    std::vector<std::unique_ptr<Snapshot>> snapshots(nLogs);
+    std::vector<EntryIterator> offsets;
+    offsets.reserve(nLogs);
     for (int i = 0; i < nLogs; ++i) {
-        snapshots[i] = mNamedReaders[i].reader()->getSnapshot();
-        offsets[i] = snapshots[i]->begin();
+        snapshots[i] = mReaders[i]->getSnapshot();
+        offsets.push_back(snapshots[i]->begin());
     }
     // initialize offsets
     // TODO custom heap implementation could allow to update top, improving performance
@@ -1071,17 +1148,19 @@
     for (int i = 0; i < nLogs; ++i)
     {
         if (offsets[i] != snapshots[i]->end()) {
-            int64_t ts = AbstractEntry::buildEntry(offsets[i])->timestamp();
-            timestamps.emplace(ts, i);
+            std::unique_ptr<AbstractEntry> abstractEntry = AbstractEntry::buildEntry(offsets[i]);
+            if (abstractEntry == nullptr) {
+                continue;
+            }
+            timestamps.emplace(abstractEntry->timestamp(), i);
         }
     }
 
     while (!timestamps.empty()) {
-        // find minimum timestamp
-        int index = timestamps.top().index;
+        int index = timestamps.top().index;     // find minimum timestamp
         // copy it to the log, increasing offset
-        offsets[index] = AbstractEntry::buildEntry(offsets[index])->copyWithAuthor(mFifoWriter,
-                                                                                   index);
+        offsets[index] = AbstractEntry::buildEntry(offsets[index])->
+            copyWithAuthor(mFifoWriter, index);
         // update data structures
         timestamps.pop();
         if (offsets[index] != snapshots[index]->end()) {
@@ -1091,20 +1170,27 @@
     }
 }
 
-const std::vector<NBLog::NamedReader>& NBLog::Merger::getNamedReaders() const {
-    // FIXME This is returning a reference to a shared variable that needs a lock
-    return mNamedReaders;
+const std::vector<sp<NBLog::Reader>>& NBLog::Merger::getReaders() const
+{
+    //AutoMutex _l(mLock);
+    return mReaders;
 }
 
 // ---------------------------------------------------------------------------
 
 NBLog::MergeReader::MergeReader(const void *shared, size_t size, Merger &merger)
-    : Reader(shared, size), mNamedReaders(merger.getNamedReaders()) {}
+    : Reader(shared, size, "MergeReader"), mReaders(merger.getReaders())
+{
+}
 
-void NBLog::MergeReader::handleAuthor(const NBLog::AbstractEntry &entry, String8 *body) {
+void NBLog::MergeReader::handleAuthor(const NBLog::AbstractEntry &entry, String8 *body)
+{
     int author = entry.author();
+    if (author == -1) {
+        return;
+    }
     // FIXME Needs a lock
-    const char* name = mNamedReaders[author].name();
+    const char* name = mReaders[author]->name().c_str();
     body->appendFormat("%s: ", name);
 }
 
@@ -1113,23 +1199,27 @@
 NBLog::MergeThread::MergeThread(NBLog::Merger &merger, NBLog::MergeReader &mergeReader)
     : mMerger(merger),
       mMergeReader(mergeReader),
-      mTimeoutUs(0) {}
+      mTimeoutUs(0)
+{
+}
 
-NBLog::MergeThread::~MergeThread() {
+NBLog::MergeThread::~MergeThread()
+{
     // set exit flag, set timeout to 0 to force threadLoop to exit and wait for the thread to join
     requestExit();
     setTimeoutUs(0);
     join();
 }
 
-bool NBLog::MergeThread::threadLoop() {
+bool NBLog::MergeThread::threadLoop()
+{
     bool doMerge;
     {
         AutoMutex _l(mMutex);
         // If mTimeoutUs is negative, wait on the condition variable until it's positive.
-        // If it's positive, wait kThreadSleepPeriodUs and then merge
-        nsecs_t waitTime = mTimeoutUs > 0 ? kThreadSleepPeriodUs * 1000 : LLONG_MAX;
-        mCond.waitRelative(mMutex, waitTime);
+        // If it's positive, merge. The minimum period between waking the condition variable
+        // is handled in AudioFlinger::MediaLogNotifier::threadLoop().
+        mCond.wait(mMutex);
         doMerge = mTimeoutUs > 0;
         mTimeoutUs -= kThreadSleepPeriodUs;
     }
@@ -1144,11 +1234,13 @@
     return true;
 }
 
-void NBLog::MergeThread::wakeup() {
+void NBLog::MergeThread::wakeup()
+{
     setTimeoutUs(kThreadWakeupPeriodUs);
 }
 
-void NBLog::MergeThread::setTimeoutUs(int time) {
+void NBLog::MergeThread::setTimeoutUs(int time)
+{
     AutoMutex _l(mMutex);
     mTimeoutUs = time;
     mCond.signal();
diff --git a/media/libnblog/include/media/nblog/NBLog.h b/media/libnblog/include/media/nblog/NBLog.h
index fb6f179..c9bfaae 100644
--- a/media/libnblog/include/media/nblog/NBLog.h
+++ b/media/libnblog/include/media/nblog/NBLog.h
@@ -19,9 +19,8 @@
 #ifndef ANDROID_MEDIA_NBLOG_H
 #define ANDROID_MEDIA_NBLOG_H
 
-#include <deque>
 #include <map>
-#include <set>
+#include <unordered_set>
 #include <vector>
 
 #include <audio_utils/fifo.h>
@@ -64,23 +63,18 @@
         EVENT_AUDIO_STATE,          // audio on/off event: logged on FastMixer::onStateChange call
         EVENT_END_FMT,              // end of logFormat argument list
 
+        // Types representing audio performance metrics
+        EVENT_LATENCY,              // TODO classify specifically what this is
+        EVENT_CPU_FREQUENCY,        // instantaneous CPU frequency in kHz
+        EVENT_MONOTONIC_CYCLE_TIME, // thread per-cycle monotonic time
+        EVENT_CPU_CYCLE_TIME,       // thread per-cycle cpu time
+
         EVENT_UPPER_BOUND,          // to check for invalid events
     };
 
 private:
 
     // ---------------------------------------------------------------------------
-    // API for handling format entry operations
-
-    // a formatted entry has the following structure:
-    //    * START_FMT entry, containing the format string
-    //    * TIMESTAMP entry
-    //    * HASH entry
-    //    * author entry of the thread that generated it (optional, present in merged log)
-    //    * format arg1
-    //    * format arg2
-    //    * ...
-    //    * END_FMT entry
 
     // entry representation in memory
     struct entry {
@@ -98,7 +92,12 @@
     // entry iterator
     class EntryIterator {
     public:
+        // Used for dummy initialization. Performing operations on a default-constructed
+        // EntryIterator other than assigning it to another valid EntryIterator
+        // is undefined behavior.
         EntryIterator();
+        // Caller's responsibility to make sure entry is not nullptr.
+        // Passing in nullptr can result in undefined behavior.
         explicit EntryIterator(const uint8_t *entry);
         EntryIterator(const EntryIterator &other);
 
@@ -109,7 +108,9 @@
         EntryIterator&       operator++(); // ++i
         // back to previous entry
         EntryIterator&       operator--(); // --i
+        // returns an EntryIterator corresponding to the next entry
         EntryIterator        next() const;
+        // returns an EntryIterator corresponding to the previous entry
         EntryIterator        prev() const;
         bool            operator!=(const EntryIterator &other) const;
         int             operator-(const EntryIterator &other) const;
@@ -120,25 +121,25 @@
 
         template<typename T>
         inline const T& payload() {
-            return *reinterpret_cast<const T *>(ptr + offsetof(entry, data));
+            return *reinterpret_cast<const T *>(mPtr + offsetof(entry, data));
         }
 
         inline operator const uint8_t*() const {
-            return ptr;
+            return mPtr;
         }
 
     private:
-        const uint8_t  *ptr;
+        const uint8_t  *mPtr;   // Should not be nullptr except for dummy initialization
     };
 
+    // ---------------------------------------------------------------------------
+    // The following classes are used for merging into the Merger's buffer.
+
     class AbstractEntry {
     public:
-
-        // Entry starting in the given pointer
-        explicit AbstractEntry(const uint8_t *entry);
         virtual ~AbstractEntry() {}
 
-        // build concrete entry of appropriate class from pointer
+        // build concrete entry of appropriate class from ptr.
         static std::unique_ptr<AbstractEntry> buildEntry(const uint8_t *ptr);
 
         // get format entry timestamp
@@ -158,11 +159,24 @@
                                                 int author) const = 0;
 
     protected:
+        // Entry starting in the given pointer, which shall not be nullptr.
+        explicit AbstractEntry(const uint8_t *entry);
         // copies ordinary entry from src to dst, and returns length of entry
         // size_t      copyEntry(audio_utils_fifo_writer *dst, const iterator &it);
         const uint8_t  *mEntry;
     };
 
+    // API for handling format entry operations
+
+    // a formatted entry has the following structure:
+    //    * START_FMT entry, containing the format string
+    //    * TIMESTAMP entry
+    //    * HASH entry
+    //    * author entry of the thread that generated it (optional, present in merged log)
+    //    * format arg1
+    //    * format arg2
+    //    * ...
+    //    * END_FMT entry
     class FormatEntry : public AbstractEntry {
     public:
         // explicit FormatEntry(const EntryIterator &it);
@@ -194,7 +208,6 @@
         // copy entry, adding author before timestamp, returns size of original entry
         virtual EntryIterator    copyWithAuthor(std::unique_ptr<audio_utils_fifo_writer> &dst,
                                                 int author) const override;
-
     };
 
     class HistogramEntry : public AbstractEntry {
@@ -211,13 +224,22 @@
 
         virtual EntryIterator    copyWithAuthor(std::unique_ptr<audio_utils_fifo_writer> &dst,
                                                 int author) const override;
-
     };
 
     // ---------------------------------------------------------------------------
 
-    // representation of a single log entry in private memory
-    struct Entry {
+    // representation of a single log entry in shared memory
+    //  byte[0]             mEvent
+    //  byte[1]             mLength
+    //  byte[2]             mData[0]
+    //  ...
+    //  byte[2+i]           mData[i]
+    //  ...
+    //  byte[2+mLength-1]   mData[mLength-1]
+    //  byte[2+mLength]     duplicate copy of mLength to permit reverse scan
+    //  byte[3+mLength]     start of next log entry
+    class Entry {
+    public:
         Entry(Event event, const void *data, size_t length)
             : mEvent(event), mLength(length), mData(data) { }
         /*virtual*/ ~Entry() { }
@@ -256,24 +278,6 @@
         int value;
     }; //TODO __attribute__((packed));
 
-    // representation of a single log entry in shared memory
-    //  byte[0]             mEvent
-    //  byte[1]             mLength
-    //  byte[2]             mData[0]
-    //  ...
-    //  byte[2+i]           mData[i]
-    //  ...
-    //  byte[2+mLength-1]   mData[mLength-1]
-    //  byte[2+mLength]     duplicate copy of mLength to permit reverse scan
-    //  byte[3+mLength]     start of next log entry
-
-    static void    appendInt(String8 *body, const void *data);
-    static void    appendFloat(String8 *body, const void *data);
-    static void    appendPID(String8 *body, const void *data, size_t length);
-    static void    appendTimestamp(String8 *body, const void *data);
-    static size_t  fmtEntryLength(const uint8_t *data);
-    static String8 bufferDump(const uint8_t *buffer, size_t size);
-    static String8 bufferDump(const EntryIterator &it);
 public:
 
     // Located in shared memory, must be POD.
@@ -339,12 +343,15 @@
         virtual void    logInteger(const int x);
         virtual void    logFloat(const float x);
         virtual void    logPID();
-        virtual void    logFormat(const char *fmt, log_hash_t hash, ...);
-        virtual void    logVFormat(const char *fmt, log_hash_t hash, va_list ap);
         virtual void    logStart(const char *fmt);
         virtual void    logEnd();
         virtual void    logHash(log_hash_t hash);
+        // The functions below are not in LockedWriter yet.
+        virtual void    logFormat(const char *fmt, log_hash_t hash, ...);
+        virtual void    logVFormat(const char *fmt, log_hash_t hash, va_list ap);
         virtual void    logEventHistTs(Event event, log_hash_t hash);
+        virtual void    logMonotonicCycleTime(uint32_t monotonicNs);
+        // End of functions that are not in LockedWriter yet.
 
         virtual bool    isEnabled() const;
 
@@ -360,7 +367,7 @@
         // writes a single Entry to the FIFO
         void    log(Event event, const void *data, size_t length);
         // checks validity of an event before calling log above this one
-        void    log(const Entry *entry, bool trusted = false);
+        void    log(const Entry &entry, bool trusted = false);
 
         Shared* const   mShared;    // raw pointer to shared memory
         sp<IMemory>     mIMemory;   // ref-counted version, initialized in constructor
@@ -406,99 +413,86 @@
 
     // ---------------------------------------------------------------------------
 
+    // A snapshot of a readers buffer
+    // This is raw data. No analysis has been done on it
+    class Snapshot {
+    public:
+        Snapshot() = default;
+
+        explicit Snapshot(size_t bufferSize) : mData(new uint8_t[bufferSize]) {}
+
+        ~Snapshot() { delete[] mData; }
+
+        // amount of data lost (given by audio_utils_fifo_reader)
+        size_t   lost() const { return mLost; }
+
+        // iterator to beginning of readable segment of snapshot
+        // data between begin and end has valid entries
+        EntryIterator begin() const { return mBegin; }
+
+        // iterator to end of readable segment of snapshot
+        EntryIterator end() const { return mEnd; }
+
+    private:
+        friend class Reader;
+        uint8_t * const       mData{};
+        size_t                mLost{0};
+        EntryIterator mBegin;
+        EntryIterator mEnd;
+    };
+
     class Reader : public RefBase {
     public:
-        // A snapshot of a readers buffer
-        // This is raw data. No analysis has been done on it
-        class Snapshot {
-        public:
-            Snapshot() : mData(NULL), mLost(0) {}
-
-            Snapshot(size_t bufferSize) : mData(new uint8_t[bufferSize]) {}
-
-            ~Snapshot() { delete[] mData; }
-
-            // copy of the buffer
-            uint8_t *data() const { return mData; }
-
-            // amount of data lost (given by audio_utils_fifo_reader)
-            size_t   lost() const { return mLost; }
-
-            // iterator to beginning of readable segment of snapshot
-            // data between begin and end has valid entries
-            EntryIterator begin() { return mBegin; }
-
-            // iterator to end of readable segment of snapshot
-            EntryIterator end() { return mEnd; }
-
-        private:
-            friend class MergeReader;
-            friend class Reader;
-            uint8_t              *mData;
-            size_t                mLost;
-            EntryIterator mBegin;
-            EntryIterator mEnd;
-        };
-
         // Input parameter 'size' is the desired size of the timeline in byte units.
         // The size of the shared memory must be at least Timeline::sharedSize(size).
-        Reader(const void *shared, size_t size);
-        Reader(const sp<IMemory>& iMemory, size_t size);
-
+        Reader(const void *shared, size_t size, const std::string &name);
+        Reader(const sp<IMemory>& iMemory, size_t size, const std::string &name);
         virtual ~Reader();
 
         // get snapshot of readers fifo buffer, effectively consuming the buffer
         std::unique_ptr<Snapshot> getSnapshot();
-
         bool     isIMemory(const sp<IMemory>& iMemory) const;
-
-    protected:
-        // print a summary of the performance to the console
-        void    dumpLine(const String8& timestamp, String8& body);
-        EntryIterator   handleFormat(const FormatEntry &fmtEntry,
-                                     String8 *timestamp,
-                                     String8 *body);
-        int mFd;                // file descriptor
-        int mIndent;            // indentation level
-        int mLost;              // bytes of data lost before buffer was read
+        const std::string &name() const { return mName; }
 
     private:
-        static const std::set<Event> startingTypes;
-        static const std::set<Event> endingTypes;
-
+        static constexpr int kMaxObtainTries = 3;
+        // startingTypes and endingTypes are used to check for log corruption.
+        static const std::unordered_set<Event> startingTypes;
+        static const std::unordered_set<Event> endingTypes;
         // declared as const because audio_utils_fifo() constructor
         sp<IMemory> mIMemory;       // ref-counted version, assigned only in constructor
 
+        const std::string mName;            // name of reader (actually name of writer)
         /*const*/ Shared* const mShared;    // raw pointer to shared memory, actually const but not
         audio_utils_fifo * const mFifo;                 // FIFO itself,
-        // non-NULL unless constructor fails
+                                                        // non-NULL unless constructor fails
         audio_utils_fifo_reader * const mFifoReader;    // used to read from FIFO,
-        // non-NULL unless constructor fails
+                                                        // non-NULL unless constructor fails
 
         // Searches for the last entry of type <type> in the range [front, back)
         // back has to be entry-aligned. Returns nullptr if none enconuntered.
         static const uint8_t *findLastEntryOfTypes(const uint8_t *front, const uint8_t *back,
-                                                   const std::set<Event> &types);
-
-        // dummy method for handling absent author entry
-        virtual void handleAuthor(const AbstractEntry& /*fmtEntry*/, String8* /*body*/) {}
+                                                   const std::unordered_set<Event> &types);
     };
 
-    // Wrapper for a reader with a name. Contains a pointer to the reader and a pointer to the name
-    class NamedReader {
+    class DumpReader : public Reader {
     public:
-        NamedReader() { mName[0] = '\0'; } // for Vector
-        NamedReader(const sp<NBLog::Reader>& reader, const char *name) :
-            mReader(reader)
-            { strlcpy(mName, name, sizeof(mName)); }
-        ~NamedReader() { }
-        const sp<NBLog::Reader>&  reader() const { return mReader; }
-        const char*               name() const { return mName; }
-
+        DumpReader(const void *shared, size_t size, const std::string &name)
+            : Reader(shared, size, name) {}
+        DumpReader(const sp<IMemory>& iMemory, size_t size, const std::string &name)
+            : Reader(iMemory, size, name) {}
+        void dump(int fd, size_t indent = 0);
     private:
-        sp<NBLog::Reader>   mReader;
-        static const size_t kMaxName = 32;
-        char                mName[kMaxName];
+        void handleAuthor(const AbstractEntry& fmtEntry __unused, String8* body __unused) {}
+        EntryIterator handleFormat(const FormatEntry &fmtEntry, String8 *timestamp, String8 *body);
+
+        static void    appendInt(String8 *body, const void *data);
+        static void    appendFloat(String8 *body, const void *data);
+        static void    appendPID(String8 *body, const void *data, size_t length);
+        static void    appendTimestamp(String8 *body, const void *data);
+        //static size_t  fmtEntryLength(const uint8_t *data);   // TODO Eric remove if not used
+        static String8 bufferDump(const uint8_t *buffer, size_t size);
+        static String8 bufferDump(const EntryIterator &it);
     };
 
     // ---------------------------------------------------------------------------
@@ -511,18 +505,18 @@
 
         virtual ~Merger() {}
 
-        void addReader(const NamedReader &reader);
+        void addReader(const sp<NBLog::Reader> &reader);
         // TODO add removeReader
         void merge();
 
         // FIXME This is returning a reference to a shared variable that needs a lock
-        const std::vector<NamedReader>& getNamedReaders() const;
+        const std::vector<sp<Reader>>& getReaders() const;
 
     private:
         // vector of the readers the merger is supposed to merge from.
         // every reader reads from a writer's buffer
         // FIXME Needs to be protected by a lock
-        std::vector<NamedReader> mNamedReaders;
+        std::vector<sp<Reader>> mReaders;
 
         Shared * const mShared; // raw pointer to shared memory
         std::unique_ptr<audio_utils_fifo> mFifo; // FIFO itself
@@ -530,7 +524,7 @@
     };
 
     // This class has a pointer to the FIFO in local memory which stores the merged
-    // data collected by NBLog::Merger from all NamedReaders. It is used to process
+    // data collected by NBLog::Merger from all Readers. It is used to process
     // this data and write the result to PerformanceAnalysis.
     class MergeReader : public Reader {
     public:
@@ -538,14 +532,15 @@
 
         void dump(int fd, int indent = 0);
         // process a particular snapshot of the reader
-        void getAndProcessSnapshot(Snapshot & snap);
+        void getAndProcessSnapshot(Snapshot &snap, int author);
         // call getSnapshot of the content of the reader's buffer and process the data
         void getAndProcessSnapshot();
 
     private:
         // FIXME Needs to be protected by a lock,
         //       because even though our use of it is read-only there may be asynchronous updates
-        const std::vector<NamedReader>& mNamedReaders;
+        // The object is owned by the Merger class.
+        const std::vector<sp<Reader>>& mReaders;
 
         // analyzes, compresses and stores the merged data
         // contains a separate instance for every author (thread), and for every source file
diff --git a/media/libstagefright/Android.bp b/media/libstagefright/Android.bp
index 48e351b..fec40b6 100644
--- a/media/libstagefright/Android.bp
+++ b/media/libstagefright/Android.bp
@@ -105,6 +105,7 @@
         "DataConverter.cpp",
         "DataSourceFactory.cpp",
         "DataURISource.cpp",
+        "ClearFileSource.cpp",
         "FileSource.cpp",
         "FrameDecoder.cpp",
         "HTTPBase.cpp",
@@ -119,8 +120,10 @@
         "MediaCodecList.cpp",
         "MediaCodecListOverrides.cpp",
         "MediaCodecSource.cpp",
+        "MediaExtractor.cpp",
         "MediaExtractorFactory.cpp",
         "MediaSync.cpp",
+        "http/ClearMediaHTTP.cpp",
         "http/MediaHTTP.cpp",
         "MediaMuxer.cpp",
         "NuCachedSource2.cpp",
@@ -232,13 +235,14 @@
     srcs: [
         "CallbackDataSource.cpp",
         "CallbackMediaSource.cpp",
-        "DataSourceFactory.cpp",
+        "ClearDataSourceFactory.cpp",
+        "ClearFileSource.cpp",
         "DataURISource.cpp",
-        "FileSource.cpp",
         "HTTPBase.cpp",
         "HevcUtils.cpp",
         "InterfaceUtils.cpp",
         "MediaClock.cpp",
+        "MediaExtractor.cpp",
         "MediaExtractorFactory.cpp",
         "NdkUtils.cpp",
         "NuCachedSource2.cpp",
@@ -246,13 +250,12 @@
         "RemoteMediaSource.cpp",
         "Utils.cpp",
         "VideoFrameScheduler.cpp",
-        "http/MediaHTTP.cpp",
+        "http/ClearMediaHTTP.cpp",
     ],
 
     shared_libs: [
         "libbinder",
         "libcutils",
-        "libdrmframework",
         "libgui",
         "liblog",
         "libmedia_player2_util",
diff --git a/media/libstagefright/ClearDataSourceFactory.cpp b/media/libstagefright/ClearDataSourceFactory.cpp
new file mode 100644
index 0000000..5d23fda
--- /dev/null
+++ b/media/libstagefright/ClearDataSourceFactory.cpp
@@ -0,0 +1,117 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT 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 "ClearDataSourceFactory"
+
+#include "include/HTTPBase.h"
+#include "include/NuCachedSource2.h"
+
+#include <media/MediaHTTPConnection.h>
+#include <media/MediaHTTPService.h>
+#include <media/stagefright/ClearFileSource.h>
+#include <media/stagefright/ClearMediaHTTP.h>
+#include <media/stagefright/ClearDataSourceFactory.h>
+#include <media/stagefright/DataURISource.h>
+#include <utils/String8.h>
+
+namespace android {
+
+// static
+sp<DataSource> ClearDataSourceFactory::CreateFromURI(
+        const sp<MediaHTTPService> &httpService,
+        const char *uri,
+        const KeyedVector<String8, String8> *headers,
+        String8 *contentType,
+        HTTPBase *httpSource) {
+    if (contentType != NULL) {
+        *contentType = "";
+    }
+
+    sp<DataSource> source;
+    if (!strncasecmp("file://", uri, 7)) {
+        source = new ClearFileSource(uri + 7);
+    } else if (!strncasecmp("http://", uri, 7) || !strncasecmp("https://", uri, 8)) {
+        if (httpService == NULL) {
+            ALOGE("Invalid http service!");
+            return NULL;
+        }
+
+        if (httpSource == NULL) {
+            sp<MediaHTTPConnection> conn = httpService->makeHTTPConnection();
+            if (conn == NULL) {
+                ALOGE("Failed to make http connection from http service!");
+                return NULL;
+            }
+            httpSource = new ClearMediaHTTP(conn);
+        }
+
+        String8 cacheConfig;
+        bool disconnectAtHighwatermark = false;
+        KeyedVector<String8, String8> nonCacheSpecificHeaders;
+        if (headers != NULL) {
+            nonCacheSpecificHeaders = *headers;
+            NuCachedSource2::RemoveCacheSpecificHeaders(
+                    &nonCacheSpecificHeaders,
+                    &cacheConfig,
+                    &disconnectAtHighwatermark);
+        }
+
+        if (httpSource->connect(uri, &nonCacheSpecificHeaders) != OK) {
+            ALOGE("Failed to connect http source!");
+            return NULL;
+        }
+
+        if (contentType != NULL) {
+            *contentType = httpSource->getMIMEType();
+        }
+
+        source = NuCachedSource2::Create(
+                httpSource,
+                cacheConfig.isEmpty() ? NULL : cacheConfig.string(),
+                disconnectAtHighwatermark);
+    } else if (!strncasecmp("data:", uri, 5)) {
+        source = DataURISource::Create(uri);
+    } else {
+        // Assume it's a filename.
+        source = new ClearFileSource(uri);
+    }
+
+    if (source == NULL || source->initCheck() != OK) {
+        return NULL;
+    }
+
+    return source;
+}
+
+sp<DataSource> ClearDataSourceFactory::CreateFromFd(int fd, int64_t offset, int64_t length) {
+    sp<ClearFileSource> source = new ClearFileSource(fd, offset, length);
+    return source->initCheck() != OK ? nullptr : source;
+}
+
+sp<DataSource> ClearDataSourceFactory::CreateMediaHTTP(const sp<MediaHTTPService> &httpService) {
+    if (httpService == NULL) {
+        return NULL;
+    }
+
+    sp<MediaHTTPConnection> conn = httpService->makeHTTPConnection();
+    if (conn == NULL) {
+        return NULL;
+    } else {
+        return new ClearMediaHTTP(conn);
+    }
+}
+
+}  // namespace android
diff --git a/media/libstagefright/ClearFileSource.cpp b/media/libstagefright/ClearFileSource.cpp
new file mode 100644
index 0000000..e3a2cb7
--- /dev/null
+++ b/media/libstagefright/ClearFileSource.cpp
@@ -0,0 +1,143 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT 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 "ClearFileSource"
+#include <utils/Log.h>
+
+#include <media/stagefright/foundation/ADebug.h>
+#include <media/stagefright/ClearFileSource.h>
+#include <media/stagefright/Utils.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+namespace android {
+
+ClearFileSource::ClearFileSource(const char *filename)
+    : mFd(-1),
+      mOffset(0),
+      mLength(-1),
+      mName("<null>") {
+
+    if (filename) {
+        mName = String8::format("FileSource(%s)", filename);
+    }
+    ALOGV("%s", filename);
+    mFd = open(filename, O_LARGEFILE | O_RDONLY);
+
+    if (mFd >= 0) {
+        mLength = lseek64(mFd, 0, SEEK_END);
+    } else {
+        ALOGE("Failed to open file '%s'. (%s)", filename, strerror(errno));
+    }
+}
+
+ClearFileSource::ClearFileSource(int fd, int64_t offset, int64_t length)
+    : mFd(fd),
+      mOffset(offset),
+      mLength(length),
+      mName("<null>") {
+    ALOGV("fd=%d (%s), offset=%lld, length=%lld",
+            fd, nameForFd(fd).c_str(), (long long) offset, (long long) length);
+
+    if (mOffset < 0) {
+        mOffset = 0;
+    }
+    if (mLength < 0) {
+        mLength = 0;
+    }
+    if (mLength > INT64_MAX - mOffset) {
+        mLength = INT64_MAX - mOffset;
+    }
+    struct stat s;
+    if (fstat(fd, &s) == 0) {
+        if (mOffset > s.st_size) {
+            mOffset = s.st_size;
+            mLength = 0;
+        }
+        if (mOffset + mLength > s.st_size) {
+            mLength = s.st_size - mOffset;
+        }
+    }
+    if (mOffset != offset || mLength != length) {
+        ALOGW("offset/length adjusted from %lld/%lld to %lld/%lld",
+                (long long) offset, (long long) length,
+                (long long) mOffset, (long long) mLength);
+    }
+
+    mName = String8::format(
+            "FileSource(fd(%s), %lld, %lld)",
+            nameForFd(fd).c_str(),
+            (long long) mOffset,
+            (long long) mLength);
+
+}
+
+ClearFileSource::~ClearFileSource() {
+    if (mFd >= 0) {
+        ::close(mFd);
+        mFd = -1;
+    }
+}
+
+status_t ClearFileSource::initCheck() const {
+    return mFd >= 0 ? OK : NO_INIT;
+}
+
+ssize_t ClearFileSource::readAt(off64_t offset, void *data, size_t size) {
+    if (mFd < 0) {
+        return NO_INIT;
+    }
+
+    Mutex::Autolock autoLock(mLock);
+    if (mLength >= 0) {
+        if (offset >= mLength) {
+            return 0;  // read beyond EOF.
+        }
+        uint64_t numAvailable = mLength - offset;
+        if ((uint64_t)size > numAvailable) {
+            size = numAvailable;
+        }
+    }
+    return readAt_l(offset, data, size);
+}
+
+ssize_t ClearFileSource::readAt_l(off64_t offset, void *data, size_t size) {
+    off64_t result = lseek64(mFd, offset + mOffset, SEEK_SET);
+    if (result == -1) {
+        ALOGE("seek to %lld failed", (long long)(offset + mOffset));
+        return UNKNOWN_ERROR;
+    }
+
+    return ::read(mFd, data, size);
+}
+
+status_t ClearFileSource::getSize(off64_t *size) {
+    Mutex::Autolock autoLock(mLock);
+
+    if (mFd < 0) {
+        return NO_INIT;
+    }
+
+    *size = mLength;
+
+    return OK;
+}
+
+}  // namespace android
diff --git a/media/libstagefright/FileSource.cpp b/media/libstagefright/FileSource.cpp
index eef5314..aee7fd8 100644
--- a/media/libstagefright/FileSource.cpp
+++ b/media/libstagefright/FileSource.cpp
@@ -22,90 +22,28 @@
 #include <media/stagefright/FileSource.h>
 #include <media/stagefright/Utils.h>
 #include <private/android_filesystem_config.h>
-#include <sys/types.h>
-#include <unistd.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
 
 namespace android {
 
 FileSource::FileSource(const char *filename)
-    : mFd(-1),
-      mOffset(0),
-      mLength(-1),
-      mName("<null>"),
+    : ClearFileSource(filename),
       mDecryptHandle(NULL),
       mDrmManagerClient(NULL),
       mDrmBufOffset(0),
       mDrmBufSize(0),
       mDrmBuf(NULL){
-
-    if (filename) {
-        mName = String8::format("FileSource(%s)", filename);
-    }
-    ALOGV("%s", filename);
-    mFd = open(filename, O_LARGEFILE | O_RDONLY);
-
-    if (mFd >= 0) {
-        mLength = lseek64(mFd, 0, SEEK_END);
-    } else {
-        ALOGE("Failed to open file '%s'. (%s)", filename, strerror(errno));
-    }
 }
 
 FileSource::FileSource(int fd, int64_t offset, int64_t length)
-    : mFd(fd),
-      mOffset(offset),
-      mLength(length),
-      mName("<null>"),
+    : ClearFileSource(fd, offset, length),
       mDecryptHandle(NULL),
       mDrmManagerClient(NULL),
       mDrmBufOffset(0),
       mDrmBufSize(0),
       mDrmBuf(NULL) {
-    ALOGV("fd=%d (%s), offset=%lld, length=%lld",
-            fd, nameForFd(fd).c_str(), (long long) offset, (long long) length);
-
-    if (mOffset < 0) {
-        mOffset = 0;
-    }
-    if (mLength < 0) {
-        mLength = 0;
-    }
-    if (mLength > INT64_MAX - mOffset) {
-        mLength = INT64_MAX - mOffset;
-    }
-    struct stat s;
-    if (fstat(fd, &s) == 0) {
-        if (mOffset > s.st_size) {
-            mOffset = s.st_size;
-            mLength = 0;
-        }
-        if (mOffset + mLength > s.st_size) {
-            mLength = s.st_size - mOffset;
-        }
-    }
-    if (mOffset != offset || mLength != length) {
-        ALOGW("offset/length adjusted from %lld/%lld to %lld/%lld",
-                (long long) offset, (long long) length,
-                (long long) mOffset, (long long) mLength);
-    }
-
-    mName = String8::format(
-            "FileSource(fd(%s), %lld, %lld)",
-            nameForFd(fd).c_str(),
-            (long long) mOffset,
-            (long long) mLength);
-
 }
 
 FileSource::~FileSource() {
-    if (mFd >= 0) {
-        ::close(mFd);
-        mFd = -1;
-    }
-
     if (mDrmBuf != NULL) {
         delete[] mDrmBuf;
         mDrmBuf = NULL;
@@ -124,10 +62,6 @@
     }
 }
 
-status_t FileSource::initCheck() const {
-    return mFd >= 0 ? OK : NO_INIT;
-}
-
 ssize_t FileSource::readAt(off64_t offset, void *data, size_t size) {
     if (mFd < 0) {
         return NO_INIT;
@@ -147,30 +81,12 @@
 
     if (mDecryptHandle != NULL && DecryptApiType::CONTAINER_BASED
             == mDecryptHandle->decryptApiType) {
-        return readAtDRM(offset, data, size);
+        return readAtDRM_l(offset, data, size);
    } else {
-        off64_t result = lseek64(mFd, offset + mOffset, SEEK_SET);
-        if (result == -1) {
-            ALOGE("seek to %lld failed", (long long)(offset + mOffset));
-            return UNKNOWN_ERROR;
-        }
-
-        return ::read(mFd, data, size);
+        return readAt_l(offset, data, size);
     }
 }
 
-status_t FileSource::getSize(off64_t *size) {
-    Mutex::Autolock autoLock(mLock);
-
-    if (mFd < 0) {
-        return NO_INIT;
-    }
-
-    *size = mLength;
-
-    return OK;
-}
-
 sp<DecryptHandle> FileSource::DrmInitialization(const char *mime) {
     if (getuid() == AID_MEDIA_EX) return nullptr; // no DRM in media extractor
     if (mDrmManagerClient == NULL) {
@@ -194,7 +110,7 @@
     return mDecryptHandle;
 }
 
-ssize_t FileSource::readAtDRM(off64_t offset, void *data, size_t size) {
+ssize_t FileSource::readAtDRM_l(off64_t offset, void *data, size_t size) {
     size_t DRM_CACHE_SIZE = 1024;
     if (mDrmBuf == NULL) {
         mDrmBuf = new unsigned char[DRM_CACHE_SIZE];
diff --git a/media/libstagefright/FrameDecoder.cpp b/media/libstagefright/FrameDecoder.cpp
index 3370df1..c0e65e8 100644
--- a/media/libstagefright/FrameDecoder.cpp
+++ b/media/libstagefright/FrameDecoder.cpp
@@ -528,6 +528,18 @@
 
     ColorConverter converter((OMX_COLOR_FORMATTYPE)srcFormat, dstFormat());
 
+    uint32_t standard, range, transfer;
+    if (!outputFormat->findInt32("color-standard", (int32_t*)&standard)) {
+        standard = 0;
+    }
+    if (!outputFormat->findInt32("color-range", (int32_t*)&range)) {
+        range = 0;
+    }
+    if (!outputFormat->findInt32("color-transfer", (int32_t*)&transfer)) {
+        transfer = 0;
+    }
+    converter.setSrcColorSpace(standard, range, transfer);
+
     if (converter.isValid()) {
         converter.convert(
                 (const uint8_t *)videoFrameBuffer->data(),
@@ -699,6 +711,18 @@
 
     ColorConverter converter((OMX_COLOR_FORMATTYPE)srcFormat, dstFormat());
 
+    uint32_t standard, range, transfer;
+    if (!outputFormat->findInt32("color-standard", (int32_t*)&standard)) {
+        standard = 0;
+    }
+    if (!outputFormat->findInt32("color-range", (int32_t*)&range)) {
+        range = 0;
+    }
+    if (!outputFormat->findInt32("color-transfer", (int32_t*)&transfer)) {
+        transfer = 0;
+    }
+    converter.setSrcColorSpace(standard, range, transfer);
+
     int32_t dstLeft, dstTop, dstRight, dstBottom;
     dstLeft = mTilesDecoded % mGridCols * width;
     dstTop = mTilesDecoded / mGridCols * height;
diff --git a/media/libstagefright/MediaCodec.cpp b/media/libstagefright/MediaCodec.cpp
index 353e407..f91c543 100644
--- a/media/libstagefright/MediaCodec.cpp
+++ b/media/libstagefright/MediaCodec.cpp
@@ -2674,7 +2674,7 @@
             CHECK(msg->senderAwaitsResponse(&replyID));
 
             if (mFlags & kFlagIsAsync) {
-                ALOGE("dequeueOutputBuffer can't be used in async mode");
+                ALOGE("dequeueInputBuffer can't be used in async mode");
                 PostReplyWithError(replyID, INVALID_OPERATION);
                 break;
             }
diff --git a/media/libstagefright/MediaExtractor.cpp b/media/libstagefright/MediaExtractor.cpp
new file mode 100644
index 0000000..5e1dc77
--- /dev/null
+++ b/media/libstagefright/MediaExtractor.cpp
@@ -0,0 +1,81 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "MediaExtractor"
+#include <utils/Log.h>
+#include <pwd.h>
+
+#include <media/stagefright/foundation/ADebug.h>
+#include <media/stagefright/MediaExtractor.h>
+#include <media/stagefright/MetaData.h>
+
+namespace android {
+
+MediaExtractor::MediaExtractor() {
+    if (!LOG_NDEBUG) {
+        uid_t uid = getuid();
+        struct passwd *pw = getpwuid(uid);
+        ALOGV("extractor created in uid: %d (%s)", getuid(), pw->pw_name);
+    }
+}
+
+MediaExtractor::~MediaExtractor() {}
+
+uint32_t MediaExtractor::flags() const {
+    return CAN_SEEK_BACKWARD | CAN_SEEK_FORWARD | CAN_PAUSE | CAN_SEEK;
+}
+
+// --------------------------------------------------------------------------------
+MediaExtractorCUnwrapper::MediaExtractorCUnwrapper(CMediaExtractor *wrapper) {
+    this->wrapper = wrapper;
+}
+
+MediaExtractorCUnwrapper::~MediaExtractorCUnwrapper() {
+    wrapper->free(wrapper->data);
+    free(wrapper);
+}
+
+size_t MediaExtractorCUnwrapper::countTracks() {
+    return wrapper->countTracks(wrapper->data);
+}
+
+MediaTrack *MediaExtractorCUnwrapper::getTrack(size_t index) {
+    return wrapper->getTrack(wrapper->data, index);
+}
+
+status_t MediaExtractorCUnwrapper::getTrackMetaData(
+        MetaDataBase& meta, size_t index, uint32_t flags) {
+    return wrapper->getTrackMetaData(wrapper->data, meta, index, flags);
+}
+
+status_t MediaExtractorCUnwrapper::getMetaData(MetaDataBase& meta) {
+    return wrapper->getMetaData(wrapper->data, meta);
+}
+
+const char * MediaExtractorCUnwrapper::name() {
+    return wrapper->name(wrapper->data);
+}
+
+uint32_t MediaExtractorCUnwrapper::flags() const {
+    return wrapper->flags(wrapper->data);
+}
+
+status_t MediaExtractorCUnwrapper::setMediaCas(const uint8_t* casToken, size_t size) {
+    return wrapper->setMediaCas(wrapper->data, casToken, size);
+}
+
+}  // namespace android
diff --git a/media/libstagefright/MediaExtractorFactory.cpp b/media/libstagefright/MediaExtractorFactory.cpp
index 2d4bd39..1a12c95 100644
--- a/media/libstagefright/MediaExtractorFactory.cpp
+++ b/media/libstagefright/MediaExtractorFactory.cpp
@@ -21,9 +21,9 @@
 #include <binder/IServiceManager.h>
 #include <media/DataSource.h>
 #include <media/MediaAnalyticsItem.h>
-#include <media/MediaExtractor.h>
 #include <media/stagefright/foundation/AMessage.h>
 #include <media/stagefright/InterfaceUtils.h>
+#include <media/stagefright/MediaExtractor.h>
 #include <media/stagefright/MediaExtractorFactory.h>
 #include <media/IMediaExtractor.h>
 #include <media/IMediaExtractorService.h>
@@ -74,25 +74,26 @@
     source->DrmInitialization(nullptr /* mime */);
 
     void *meta = nullptr;
-    MediaExtractor::CreatorFunc creator = NULL;
-    MediaExtractor::FreeMetaFunc freeMeta = nullptr;
+    CreatorFunc creator = NULL;
+    FreeMetaFunc freeMeta = nullptr;
     float confidence;
     sp<ExtractorPlugin> plugin;
-    creator = sniff(source.get(), &confidence, &meta, &freeMeta, plugin);
+    creator = sniff(source, &confidence, &meta, &freeMeta, plugin);
     if (!creator) {
         ALOGV("FAILED to autodetect media content.");
         return NULL;
     }
 
-    MediaExtractor *ret = creator(source.get(), meta);
+    CMediaExtractor *ret = creator(source->wrap(), meta);
     if (meta != nullptr && freeMeta != nullptr) {
         freeMeta(meta);
     }
 
+    MediaExtractor *ex = ret != nullptr ? new MediaExtractorCUnwrapper(ret) : nullptr;
     ALOGV("Created an extractor '%s' with confidence %.2f",
-         ret != nullptr ? ret->name() : "<null>", confidence);
+         ex != nullptr ? ex->name() : "<null>", confidence);
 
-    return CreateIMediaExtractorFromMediaExtractor(ret, source, plugin);
+    return CreateIMediaExtractorFromMediaExtractor(ex, source, plugin);
 }
 
 //static
@@ -103,14 +104,14 @@
 }
 
 struct ExtractorPlugin : public RefBase {
-    MediaExtractor::ExtractorDef def;
+    ExtractorDef def;
     void *libHandle;
     String8 libPath;
     String8 uuidString;
 
-    ExtractorPlugin(MediaExtractor::ExtractorDef definition, void *handle, String8 &path)
+    ExtractorPlugin(ExtractorDef definition, void *handle, String8 &path)
         : def(definition), libHandle(handle), libPath(path) {
-        for (size_t i = 0; i < sizeof MediaExtractor::ExtractorDef::extractor_uuid; i++) {
+        for (size_t i = 0; i < sizeof ExtractorDef::extractor_uuid; i++) {
             uuidString.appendFormat("%02x", def.extractor_uuid.b[i]);
         }
     }
@@ -127,9 +128,9 @@
 bool MediaExtractorFactory::gPluginsRegistered = false;
 
 // static
-MediaExtractor::CreatorFunc MediaExtractorFactory::sniff(
-        DataSourceBase *source, float *confidence, void **meta,
-        MediaExtractor::FreeMetaFunc *freeMeta, sp<ExtractorPlugin> &plugin) {
+CreatorFunc MediaExtractorFactory::sniff(
+        const sp<DataSource> &source, float *confidence, void **meta,
+        FreeMetaFunc *freeMeta, sp<ExtractorPlugin> &plugin) {
     *confidence = 0.0f;
     *meta = nullptr;
 
@@ -142,14 +143,15 @@
         plugins = gPlugins;
     }
 
-    MediaExtractor::CreatorFunc curCreator = NULL;
-    MediaExtractor::CreatorFunc bestCreator = NULL;
+    CreatorFunc curCreator = NULL;
+    CreatorFunc bestCreator = NULL;
     for (auto it = plugins->begin(); it != plugins->end(); ++it) {
         ALOGV("sniffing %s", (*it)->def.extractor_name);
         float newConfidence;
         void *newMeta = nullptr;
-        MediaExtractor::FreeMetaFunc newFreeMeta = nullptr;
-        if ((curCreator = (*it)->def.sniff(source, &newConfidence, &newMeta, &newFreeMeta))) {
+        FreeMetaFunc newFreeMeta = nullptr;
+        if ((curCreator = (*it)->def.sniff(
+                        source->wrap(), &newConfidence, &newMeta, &newFreeMeta))) {
             if (newConfidence > *confidence) {
                 *confidence = newConfidence;
                 if (*meta != nullptr && *freeMeta != nullptr) {
@@ -175,7 +177,7 @@
         std::list<sp<ExtractorPlugin>> &pluginList) {
     // sanity check check struct version, uuid, name
     if (plugin->def.def_version == 0
-            || plugin->def.def_version > MediaExtractor::EXTRACTORDEF_VERSION) {
+            || plugin->def.def_version > EXTRACTORDEF_VERSION) {
         ALOGE("don't understand extractor format %u, ignoring.", plugin->def.def_version);
         return;
     }
@@ -236,8 +238,8 @@
                 // within the apk instead of system libraries already loaded.
                 void *libHandle = dlopen(libPath.string(), RTLD_NOW | RTLD_LOCAL);
                 if (libHandle) {
-                    MediaExtractor::GetExtractorDef getDef =
-                        (MediaExtractor::GetExtractorDef) dlsym(libHandle, "GETEXTRACTORDEF");
+                    GetExtractorDef getDef =
+                        (GetExtractorDef) dlsym(libHandle, "GETEXTRACTORDEF");
                     if (getDef) {
                         ALOGV("registering sniffer for %s", libPath.string());
                         RegisterExtractor(
@@ -271,8 +273,8 @@
             String8 libPath = String8(libDirPath) + "/" + libEntry->d_name;
             void *libHandle = dlopen(libPath.string(), RTLD_NOW | RTLD_LOCAL);
             if (libHandle) {
-                MediaExtractor::GetExtractorDef getDef =
-                    (MediaExtractor::GetExtractorDef) dlsym(libHandle, "GETEXTRACTORDEF");
+                GetExtractorDef getDef =
+                    (GetExtractorDef) dlsym(libHandle, "GETEXTRACTORDEF");
                 if (getDef) {
                     ALOGV("registering sniffer for %s", libPath.string());
                     RegisterExtractor(
diff --git a/media/libstagefright/MetaDataUtils.cpp b/media/libstagefright/MetaDataUtils.cpp
index 04f6ade..2475e7b 100644
--- a/media/libstagefright/MetaDataUtils.cpp
+++ b/media/libstagefright/MetaDataUtils.cpp
@@ -16,8 +16,10 @@
 
 //#define LOG_NDEBUG 0
 #define LOG_TAG "MetaDataUtils"
+#include <utils/Log.h>
 
 #include <media/stagefright/foundation/avc_utils.h>
+#include <media/stagefright/foundation/ABitReader.h>
 #include <media/stagefright/foundation/ABuffer.h>
 #include <media/stagefright/MediaDefs.h>
 #include <media/stagefright/MetaDataUtils.h>
@@ -25,6 +27,10 @@
 namespace android {
 
 bool MakeAVCCodecSpecificData(MetaDataBase &meta, const uint8_t *data, size_t size) {
+    if (data == nullptr || size == 0) {
+        return false;
+    }
+
     int32_t width;
     int32_t height;
     int32_t sarWidth;
@@ -46,6 +52,44 @@
     return true;
 }
 
+bool MakeAACCodecSpecificData(MetaDataBase &meta, const uint8_t *data, size_t size) {
+    if (data == nullptr || size < 7) {
+        return false;
+    }
+
+    ABitReader bits(data, size);
+
+    // adts_fixed_header
+
+    if (bits.getBits(12) != 0xfffu) {
+        ALOGE("Wrong atds_fixed_header");
+        return false;
+    }
+
+    bits.skipBits(4);  // ID, layer, protection_absent
+
+    unsigned profile = bits.getBits(2);
+    if (profile == 3u) {
+        ALOGE("profile should not be 3");
+        return false;
+    }
+    unsigned sampling_freq_index = bits.getBits(4);
+    bits.getBits(1);  // private_bit
+    unsigned channel_configuration = bits.getBits(3);
+    if (channel_configuration == 0u) {
+        ALOGE("channel_config should not be 0");
+        return false;
+    }
+
+    if (!MakeAACCodecSpecificData(
+            meta, profile, sampling_freq_index, channel_configuration)) {
+        return false;
+    }
+
+    meta.setInt32(kKeyIsADTS, true);
+    return true;
+}
+
 bool MakeAACCodecSpecificData(
         MetaDataBase &meta,
         unsigned profile, unsigned sampling_freq_index,
diff --git a/media/libstagefright/NuMediaExtractor.cpp b/media/libstagefright/NuMediaExtractor.cpp
index 4a7d6ca..8e8c77c 100644
--- a/media/libstagefright/NuMediaExtractor.cpp
+++ b/media/libstagefright/NuMediaExtractor.cpp
@@ -24,7 +24,6 @@
 #include "include/NuCachedSource2.h"
 
 #include <media/DataSource.h>
-#include <media/MediaExtractor.h>
 #include <media/MediaSource.h>
 #include <media/stagefright/foundation/ABuffer.h>
 #include <media/stagefright/foundation/ADebug.h>
@@ -34,6 +33,7 @@
 #include <media/stagefright/MediaBuffer.h>
 #include <media/stagefright/MediaDefs.h>
 #include <media/stagefright/MediaErrors.h>
+#include <media/stagefright/MediaExtractor.h>
 #include <media/stagefright/MediaExtractorFactory.h>
 #include <media/stagefright/MetaData.h>
 #include <media/stagefright/Utils.h>
diff --git a/media/libstagefright/StagefrightMetadataRetriever.cpp b/media/libstagefright/StagefrightMetadataRetriever.cpp
index e80ec3b..f8dde79 100644
--- a/media/libstagefright/StagefrightMetadataRetriever.cpp
+++ b/media/libstagefright/StagefrightMetadataRetriever.cpp
@@ -32,6 +32,7 @@
 #include <media/stagefright/MediaCodecList.h>
 #include <media/stagefright/MediaDefs.h>
 #include <media/stagefright/MediaErrors.h>
+#include <media/stagefright/MediaExtractor.h>
 #include <media/stagefright/MediaExtractorFactory.h>
 #include <media/stagefright/MetaData.h>
 #include <media/CharacterEncodingDetector.h>
diff --git a/media/libstagefright/StagefrightPluginLoader.cpp b/media/libstagefright/StagefrightPluginLoader.cpp
index 519e870..dd5903a 100644
--- a/media/libstagefright/StagefrightPluginLoader.cpp
+++ b/media/libstagefright/StagefrightPluginLoader.cpp
@@ -46,7 +46,7 @@
     }
     mCreateInputSurface = (CodecBase::CreateInputSurfaceFunc)dlsym(
             mLibHandle, "CreateInputSurface");
-    if (mCreateBuilder == nullptr) {
+    if (mCreateInputSurface == nullptr) {
         ALOGD("Failed to find symbol: CreateInputSurface (%s)", dlerror());
     }
 }
diff --git a/media/libstagefright/Utils.cpp b/media/libstagefright/Utils.cpp
index ea778a4..ada37a6 100644
--- a/media/libstagefright/Utils.cpp
+++ b/media/libstagefright/Utils.cpp
@@ -1577,6 +1577,7 @@
     { MEDIA_MIMETYPE_AUDIO_VORBIS,      AUDIO_FORMAT_VORBIS },
     { MEDIA_MIMETYPE_AUDIO_OPUS,        AUDIO_FORMAT_OPUS},
     { MEDIA_MIMETYPE_AUDIO_AC3,         AUDIO_FORMAT_AC3},
+    { MEDIA_MIMETYPE_AUDIO_EAC3,        AUDIO_FORMAT_E_AC3},
     { MEDIA_MIMETYPE_AUDIO_AC4,         AUDIO_FORMAT_AC4},
     { MEDIA_MIMETYPE_AUDIO_FLAC,        AUDIO_FORMAT_FLAC},
     { 0, AUDIO_FORMAT_INVALID }
@@ -1868,4 +1869,3 @@
 }
 
 }  // namespace android
-
diff --git a/media/libstagefright/codecs/m4v_h263/dec/src/pvdec_api.cpp b/media/libstagefright/codecs/m4v_h263/dec/src/pvdec_api.cpp
index 75ca846..9c0fcfa 100644
--- a/media/libstagefright/codecs/m4v_h263/dec/src/pvdec_api.cpp
+++ b/media/libstagefright/codecs/m4v_h263/dec/src/pvdec_api.cpp
@@ -186,8 +186,8 @@
 #ifdef DEC_INTERNAL_MEMORY_OPT
                 video->vol[idx] = IMEM_vol[idx];
                 video->memoryUsage += sizeof(Vol);
-                oscl_memset(video->vol[idx], 0, sizeof(Vol));
                 if (video->vol[idx] == NULL) status = PV_FALSE;
+                else oscl_memset(video->vol[idx], 0, sizeof(Vol));
                 stream = IMEM_BitstreamDecVideo;
 #else
                 video->vol[idx] = (Vol *) oscl_malloc(sizeof(Vol));
@@ -213,6 +213,7 @@
                 else
                 {
                     int32 buffer_size;
+                    oscl_memset(stream, 0, sizeof(BitstreamDecVideo));
                     if ((buffer_size = BitstreamOpen(stream, idx)) < 0)
                     {
                         mp4dec_log("InitVideoDecoder(): Can't allocate bitstream buffer.\n");
@@ -339,27 +340,33 @@
 #ifdef DEC_INTERNAL_MEMORY_OPT
     video->currVop->yChan = IMEM_currVop_yChan; /* Allocate memory for all VOP OKA 3/2/1*/
     if (video->currVop->yChan == NULL) status = PV_FALSE;
-    video->currVop->uChan = video->currVop->yChan + size;
-    video->currVop->vChan = video->currVop->uChan + (size >> 2);
+    else {
+        video->currVop->uChan = video->currVop->yChan + size;
+        video->currVop->vChan = video->currVop->uChan + (size >> 2);
+    }
 
     video->prevVop->yChan = IMEM_prevVop_yChan; /* Allocate memory for all VOP OKA 3/2/1*/
     if (video->prevVop->yChan == NULL) status = PV_FALSE;
-    video->prevVop->uChan = video->prevVop->yChan + size;
-    video->prevVop->vChan = video->prevVop->uChan + (size >> 2);
+    else {
+        video->prevVop->uChan = video->prevVop->yChan + size;
+        video->prevVop->vChan = video->prevVop->uChan + (size >> 2);
+    }
 #else
     if (size > INT32_MAX / 3) {
         return PV_FALSE;
     }
     video->currVop->yChan = (PIXEL *) oscl_malloc(size * 3 / 2); /* Allocate memory for all VOP OKA 3/2/1*/
     if (video->currVop->yChan == NULL) status = PV_FALSE;
-
-    video->currVop->uChan = video->currVop->yChan + size;
-    video->currVop->vChan = video->currVop->uChan + (size >> 2);
+    else {
+        video->currVop->uChan = video->currVop->yChan + size;
+        video->currVop->vChan = video->currVop->uChan + (size >> 2);
+    }
     video->prevVop->yChan = (PIXEL *) oscl_malloc(size * 3 / 2); /* Allocate memory for all VOP OKA 3/2/1*/
     if (video->prevVop->yChan == NULL) status = PV_FALSE;
-
-    video->prevVop->uChan = video->prevVop->yChan + size;
-    video->prevVop->vChan = video->prevVop->uChan + (size >> 2);
+    else {
+        video->prevVop->uChan = video->prevVop->yChan + size;
+        video->prevVop->vChan = video->prevVop->uChan + (size >> 2);
+    }
 #endif
     video->memoryUsage += (size * 3);
 #endif   // MEMORY_POOL
@@ -383,8 +390,10 @@
 
             video->prevEnhcVop->yChan = (PIXEL *) oscl_malloc(size * 3 / 2); /* Allocate memory for all VOP OKA 3/2/1*/
             if (video->prevEnhcVop->yChan == NULL) status = PV_FALSE;
-            video->prevEnhcVop->uChan = video->prevEnhcVop->yChan + size;
-            video->prevEnhcVop->vChan = video->prevEnhcVop->uChan + (size >> 2);
+            else {
+                video->prevEnhcVop->uChan = video->prevEnhcVop->yChan + size;
+                video->prevEnhcVop->vChan = video->prevEnhcVop->uChan + (size >> 2);
+            }
             video->memoryUsage += (3 * size / 2);
 #endif
         }
@@ -431,10 +440,12 @@
 #else
     video->sliceNo = (uint8 *) oscl_malloc(nTotalMB);
     if (video->sliceNo == NULL) status = PV_FALSE;
+    else oscl_memset(video->sliceNo, 0, nTotalMB);
     video->memoryUsage += nTotalMB;
 
     video->acPredFlag = (uint8 *) oscl_malloc(nTotalMB * sizeof(uint8));
     if (video->acPredFlag == NULL) status = PV_FALSE;
+    else oscl_memset(video->acPredFlag, 0, nTotalMB * sizeof(uint8));
     video->memoryUsage += (nTotalMB);
 
     if ((size_t)nTotalMB > SIZE_MAX / sizeof(typeDCStore)) {
@@ -442,6 +453,7 @@
     }
     video->predDC = (typeDCStore *) oscl_malloc(nTotalMB * sizeof(typeDCStore));
     if (video->predDC == NULL) status = PV_FALSE;
+    else oscl_memset(video->predDC, 0, nTotalMB * sizeof(typeDCStore));
     video->memoryUsage += (nTotalMB * sizeof(typeDCStore));
 
     if (nMBPerRow > INT32_MAX - 1
@@ -450,6 +462,7 @@
     }
     video->predDCAC_col = (typeDCACStore *) oscl_malloc((nMBPerRow + 1) * sizeof(typeDCACStore));
     if (video->predDCAC_col == NULL) status = PV_FALSE;
+    else oscl_memset(video->predDCAC_col, 0, (nMBPerRow + 1) * sizeof(typeDCACStore));
     video->memoryUsage += ((nMBPerRow + 1) * sizeof(typeDCACStore));
 
     /* element zero will be used for storing vertical (col) AC coefficients */
@@ -459,9 +472,11 @@
     /* Allocating HeaderInfo structure & Quantizer array */
     video->headerInfo.Mode = (uint8 *) oscl_malloc(nTotalMB);
     if (video->headerInfo.Mode == NULL) status = PV_FALSE;
+    else oscl_memset(video->headerInfo.Mode, 0, nTotalMB);
     video->memoryUsage += nTotalMB;
     video->headerInfo.CBP = (uint8 *) oscl_malloc(nTotalMB);
     if (video->headerInfo.CBP == NULL) status = PV_FALSE;
+    else oscl_memset (video->headerInfo.CBP, 0, nTotalMB);
     video->memoryUsage += nTotalMB;
 
     if ((size_t)nTotalMB > SIZE_MAX / sizeof(int16)) {
@@ -469,6 +484,7 @@
     }
     video->QPMB = (int16 *) oscl_malloc(nTotalMB * sizeof(int16));
     if (video->QPMB == NULL) status = PV_FALSE;
+    else memset(video->QPMB, 0x0, nTotalMB * sizeof(int16));
     video->memoryUsage += (nTotalMB * sizeof(int));
 
     /* Allocating macroblock space */
@@ -489,8 +505,10 @@
     }
     video->motX = (MOT *) oscl_malloc(sizeof(MOT) * 4 * nTotalMB);
     if (video->motX == NULL) status = PV_FALSE;
+    else memset(video->motX, 0, sizeof(MOT) * 4 * nTotalMB);
     video->motY = (MOT *) oscl_malloc(sizeof(MOT) * 4 * nTotalMB);
     if (video->motY == NULL) status = PV_FALSE;
+    else memset(video->motY, 0, sizeof(MOT) * 4 * nTotalMB);
     video->memoryUsage += (sizeof(MOT) * 8 * nTotalMB);
 #endif
 
diff --git a/media/libstagefright/codecs/mp3dec/SoftMP3.cpp b/media/libstagefright/codecs/mp3dec/SoftMP3.cpp
index 2364684..cd984f0 100644
--- a/media/libstagefright/codecs/mp3dec/SoftMP3.cpp
+++ b/media/libstagefright/codecs/mp3dec/SoftMP3.cpp
@@ -114,7 +114,7 @@
     mConfig->crcEnabled = false;
 
     uint32_t memRequirements = pvmp3_decoderMemRequirements();
-    mDecoderBuf = malloc(memRequirements);
+    mDecoderBuf = calloc(1, memRequirements);
 
     pvmp3_InitDecoder(mConfig, mDecoderBuf);
     mIsFirst = true;
diff --git a/media/libstagefright/codecs/mp3dec/src/pvmp3_framedecoder.cpp b/media/libstagefright/codecs/mp3dec/src/pvmp3_framedecoder.cpp
index 26bc25c..df6cd03 100644
--- a/media/libstagefright/codecs/mp3dec/src/pvmp3_framedecoder.cpp
+++ b/media/libstagefright/codecs/mp3dec/src/pvmp3_framedecoder.cpp
@@ -299,7 +299,11 @@
         }
 
 
-        bytes_to_discard = pVars->frame_start - pVars->sideInfo.main_data_begin - main_data_end;
+        // force signed computation; buffer sizes and offsets are all going to be
+        // well within the constraints of 32-bit signed math.
+        bytes_to_discard = pVars->frame_start
+                           - ((int32)pVars->sideInfo.main_data_begin)
+                           - ((int32)main_data_end);
 
 
         if (main_data_end > BUFSIZE)   /* check overflow on the buffer */
diff --git a/media/libstagefright/codecs/mp3dec/src/pvmp3_get_side_info.cpp b/media/libstagefright/codecs/mp3dec/src/pvmp3_get_side_info.cpp
index 7eaa860..e55c2e7 100644
--- a/media/libstagefright/codecs/mp3dec/src/pvmp3_get_side_info.cpp
+++ b/media/libstagefright/codecs/mp3dec/src/pvmp3_get_side_info.cpp
@@ -154,7 +154,7 @@
                 tmp = getbits_crc(inputStream, 22, crc, info->error_protection);
 
                 si->ch[ch].gran[gr].big_values            = (tmp << 10) >> 23;   /* 9 */
-                si->ch[ch].gran[gr].global_gain           = ((tmp << 19) >> 24) - 210;   /* 8 */
+                si->ch[ch].gran[gr].global_gain        = (int32)((tmp << 19) >> 24) - 210; /* 8 */
                 si->ch[ch].gran[gr].scalefac_compress     = (tmp << 27) >> 28;   /* 4 */
                 si->ch[ch].gran[gr].window_switching_flag = tmp & 1;         /* 1 */
 
diff --git a/media/libstagefright/codecs/mp3dec/src/pvmp3_stereo_proc.cpp b/media/libstagefright/codecs/mp3dec/src/pvmp3_stereo_proc.cpp
index 10edfc3..4338c43 100644
--- a/media/libstagefright/codecs/mp3dec/src/pvmp3_stereo_proc.cpp
+++ b/media/libstagefright/codecs/mp3dec/src/pvmp3_stereo_proc.cpp
@@ -178,6 +178,10 @@
 ; FUNCTION CODE
 ----------------------------------------------------------------------------*/
 
+#if __has_attribute(no_sanitize)
+// deliberately playing near overflow points of int32
+__attribute__((no_sanitize("integer")))
+#endif
 void pvmp3_st_mid_side(int32 xr[SUBBANDS_NUMBER*FILTERBANK_BANDS],
                        int32 xl[SUBBANDS_NUMBER*FILTERBANK_BANDS],
                        int32 Start,
diff --git a/media/libstagefright/codecs/xaacdec/SoftXAAC.cpp b/media/libstagefright/codecs/xaacdec/SoftXAAC.cpp
index f173e0f..06b15b3 100644
--- a/media/libstagefright/codecs/xaacdec/SoftXAAC.cpp
+++ b/media/libstagefright/codecs/xaacdec/SoftXAAC.cpp
@@ -689,7 +689,6 @@
                     notify(OMX_EventError, OMX_ErrorUndefined, err_code, NULL);
                     return;
                 }
-                mIsCodecConfigFlushRequired = true;
             }
 
             if (!mSampFreq || !mNumChannels) {
@@ -713,10 +712,14 @@
             signed int bytesConsumed = 0;
             int errorCode = 0;
             if (mIsCodecInitialized) {
+                mIsCodecConfigFlushRequired = true;
                 errorCode =
                     decodeXAACStream(inBuffer, inBufferLength, &bytesConsumed, &numOutBytes);
-            } else {
+            } else if (!mIsCodecConfigFlushRequired) {
                 ALOGW("Assumption that first frame after header initializes decoder failed!");
+                mSignalledError = true;
+                notify(OMX_EventError, OMX_ErrorUndefined, -1, NULL);
+                return;
             }
             inHeader->nFilledLen -= bytesConsumed;
             inHeader->nOffset += bytesConsumed;
diff --git a/media/libstagefright/colorconversion/ColorConverter.cpp b/media/libstagefright/colorconversion/ColorConverter.cpp
index c46a40f..862cc63 100644
--- a/media/libstagefright/colorconversion/ColorConverter.cpp
+++ b/media/libstagefright/colorconversion/ColorConverter.cpp
@@ -20,10 +20,12 @@
 
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/ALooper.h>
+#include <media/stagefright/foundation/ColorUtils.h>
 #include <media/stagefright/ColorConverter.h>
 #include <media/stagefright/MediaErrors.h>
 
 #include "libyuv/convert_from.h"
+#include "libyuv/convert_argb.h"
 #include "libyuv/video_common.h"
 #include <functional>
 #include <sys/time.h>
@@ -44,10 +46,28 @@
 
 namespace android {
 
+static bool isRGB(OMX_COLOR_FORMATTYPE colorFormat) {
+    return colorFormat == OMX_COLOR_Format16bitRGB565
+            || colorFormat == OMX_COLOR_Format32BitRGBA8888
+            || colorFormat == OMX_COLOR_Format32bitBGRA8888;
+}
+
+bool ColorConverter::ColorSpace::isBt709() {
+    return (mStandard == ColorUtils::kColorStandardBT709);
+}
+
+
+bool ColorConverter::ColorSpace::isJpeg() {
+    return ((mStandard == ColorUtils::kColorStandardBT601_625)
+            || (mStandard == ColorUtils::kColorStandardBT601_525))
+            && (mRange == ColorUtils::kColorRangeFull);
+}
+
 ColorConverter::ColorConverter(
         OMX_COLOR_FORMATTYPE from, OMX_COLOR_FORMATTYPE to)
     : mSrcFormat(from),
       mDstFormat(to),
+      mSrcColorSpace({0, 0, 0}),
       mClip(NULL) {
 }
 
@@ -80,9 +100,18 @@
 }
 
 bool ColorConverter::isDstRGB() const {
-    return mDstFormat == OMX_COLOR_Format16bitRGB565
-            || mDstFormat == OMX_COLOR_Format32BitRGBA8888
-            || mDstFormat == OMX_COLOR_Format32bitBGRA8888;
+    return isRGB(mDstFormat);
+}
+
+void ColorConverter::setSrcColorSpace(
+        uint32_t standard, uint32_t range, uint32_t transfer) {
+    if (isRGB(mSrcFormat)) {
+        ALOGW("Can't set color space on RGB source");
+        return;
+    }
+    mSrcColorSpace.mStandard = standard;
+    mSrcColorSpace.mRange = range;
+    mSrcColorSpace.mTransfer = transfer;
 }
 
 /*
@@ -281,6 +310,13 @@
     return OK;
 }
 
+#define DECLARE_YUV2RGBFUNC(func, rgb) int (*func)(     \
+        const uint8*, int, const uint8*, int,           \
+        const uint8*, int, uint8*, int, int, int)       \
+        = mSrcColorSpace.isBt709() ? libyuv::H420To##rgb \
+        : mSrcColorSpace.isJpeg() ? libyuv::J420To##rgb  \
+        : libyuv::I420To##rgb
+
 status_t ColorConverter::convertYUV420PlanarUseLibYUV(
         const BitmapParams &src, const BitmapParams &dst) {
     uint8_t *dst_ptr = (uint8_t *)dst.mBits
@@ -298,19 +334,28 @@
 
     switch (mDstFormat) {
     case OMX_COLOR_Format16bitRGB565:
-        libyuv::I420ToRGB565(src_y, src.mStride, src_u, src.mStride / 2, src_v, src.mStride / 2,
+    {
+        DECLARE_YUV2RGBFUNC(func, RGB565);
+        (*func)(src_y, src.mStride, src_u, src.mStride / 2, src_v, src.mStride / 2,
                 (uint8 *)dst_ptr, dst.mStride, src.cropWidth(), src.cropHeight());
         break;
+    }
 
     case OMX_COLOR_Format32BitRGBA8888:
-        libyuv::ConvertFromI420(src_y, src.mStride, src_u, src.mStride / 2, src_v, src.mStride / 2,
-                (uint8 *)dst_ptr, dst.mStride, src.cropWidth(), src.cropHeight(), libyuv::FOURCC_ABGR);
+    {
+        DECLARE_YUV2RGBFUNC(func, ABGR);
+        (*func)(src_y, src.mStride, src_u, src.mStride / 2, src_v, src.mStride / 2,
+                (uint8 *)dst_ptr, dst.mStride, src.cropWidth(), src.cropHeight());
         break;
+    }
 
     case OMX_COLOR_Format32bitBGRA8888:
-        libyuv::ConvertFromI420(src_y, src.mStride, src_u, src.mStride / 2, src_v, src.mStride / 2,
-                (uint8 *)dst_ptr, dst.mStride, src.cropWidth(), src.cropHeight(), libyuv::FOURCC_ARGB);
+    {
+        DECLARE_YUV2RGBFUNC(func, ARGB);
+        (*func)(src_y, src.mStride, src_u, src.mStride / 2, src_v, src.mStride / 2,
+                (uint8 *)dst_ptr, dst.mStride, src.cropWidth(), src.cropHeight());
         break;
+    }
 
     default:
         return ERROR_UNSUPPORTED;
diff --git a/media/libstagefright/http/ClearMediaHTTP.cpp b/media/libstagefright/http/ClearMediaHTTP.cpp
new file mode 100644
index 0000000..bfbad1e
--- /dev/null
+++ b/media/libstagefright/http/ClearMediaHTTP.cpp
@@ -0,0 +1,180 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT 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 "ClearMediaHTTP"
+#include <utils/Log.h>
+
+#include <media/stagefright/ClearMediaHTTP.h>
+
+#include <media/stagefright/foundation/ADebug.h>
+#include <media/stagefright/foundation/ALooper.h>
+#include <media/stagefright/Utils.h>
+
+#include <media/MediaHTTPConnection.h>
+
+namespace android {
+
+ClearMediaHTTP::ClearMediaHTTP(const sp<MediaHTTPConnection> &conn)
+    : mInitCheck((conn != NULL) ? OK : NO_INIT),
+      mHTTPConnection(conn),
+      mCachedSizeValid(false),
+      mCachedSize(0ll) {
+}
+
+ClearMediaHTTP::~ClearMediaHTTP() {
+}
+
+status_t ClearMediaHTTP::connect(
+        const char *uri,
+        const KeyedVector<String8, String8> *headers,
+        off64_t /* offset */) {
+    if (mInitCheck != OK) {
+        return mInitCheck;
+    }
+
+    KeyedVector<String8, String8> extHeaders;
+    if (headers != NULL) {
+        extHeaders = *headers;
+    }
+
+    if (extHeaders.indexOfKey(String8("User-Agent")) < 0) {
+        extHeaders.add(String8("User-Agent"), String8(MakeUserAgent().c_str()));
+    }
+
+    mLastURI = uri;
+    // reconnect() calls with uri == old mLastURI.c_str(), which gets zapped
+    // as part of the above assignment. Ensure no accidental later use.
+    uri = NULL;
+
+    bool success = mHTTPConnection->connect(mLastURI.c_str(), &extHeaders);
+
+    mLastHeaders = extHeaders;
+
+    mCachedSizeValid = false;
+
+    if (success) {
+        AString sanitized = uriDebugString(mLastURI);
+        mName = String8::format("ClearMediaHTTP(%s)", sanitized.c_str());
+    }
+
+    return success ? OK : UNKNOWN_ERROR;
+}
+
+void ClearMediaHTTP::disconnect() {
+    mName = String8("ClearMediaHTTP(<disconnected>)");
+    if (mInitCheck != OK) {
+        return;
+    }
+
+    mHTTPConnection->disconnect();
+}
+
+status_t ClearMediaHTTP::initCheck() const {
+    return mInitCheck;
+}
+
+ssize_t ClearMediaHTTP::readAt(off64_t offset, void *data, size_t size) {
+    if (mInitCheck != OK) {
+        return mInitCheck;
+    }
+
+    int64_t startTimeUs = ALooper::GetNowUs();
+
+    size_t numBytesRead = 0;
+    while (numBytesRead < size) {
+        size_t copy = size - numBytesRead;
+
+        if (copy > 64 * 1024) {
+            // limit the buffer sizes transferred across binder boundaries
+            // to avoid spurious transaction failures.
+            copy = 64 * 1024;
+        }
+
+        ssize_t n = mHTTPConnection->readAt(
+                offset + numBytesRead, (uint8_t *)data + numBytesRead, copy);
+
+        if (n < 0) {
+            return n;
+        } else if (n == 0) {
+            break;
+        }
+
+        numBytesRead += n;
+    }
+
+    int64_t delayUs = ALooper::GetNowUs() - startTimeUs;
+
+    addBandwidthMeasurement(numBytesRead, delayUs);
+
+    return numBytesRead;
+}
+
+status_t ClearMediaHTTP::getSize(off64_t *size) {
+    if (mInitCheck != OK) {
+        return mInitCheck;
+    }
+
+    // Caching the returned size so that it stays valid even after a
+    // disconnect. NuCachedSource2 relies on this.
+
+    if (!mCachedSizeValid) {
+        mCachedSize = mHTTPConnection->getSize();
+        mCachedSizeValid = true;
+    }
+
+    *size = mCachedSize;
+
+    return *size < 0 ? *size : static_cast<status_t>(OK);
+}
+
+uint32_t ClearMediaHTTP::flags() {
+    return kWantsPrefetching | kIsHTTPBasedSource;
+}
+
+status_t ClearMediaHTTP::reconnectAtOffset(off64_t offset) {
+    return connect(mLastURI.c_str(), &mLastHeaders, offset);
+}
+
+
+String8 ClearMediaHTTP::getUri() {
+    if (mInitCheck != OK) {
+        return String8::empty();
+    }
+
+    String8 uri;
+    if (OK == mHTTPConnection->getUri(&uri)) {
+        return uri;
+    }
+    return String8(mLastURI.c_str());
+}
+
+String8 ClearMediaHTTP::getMIMEType() const {
+    if (mInitCheck != OK) {
+        return String8("application/octet-stream");
+    }
+
+    String8 mimeType;
+    status_t err = mHTTPConnection->getMIMEType(&mimeType);
+
+    if (err != OK) {
+        return String8("application/octet-stream");
+    }
+
+    return mimeType;
+}
+
+}  // namespace android
diff --git a/media/libstagefright/http/HTTPHelper.cpp b/media/libstagefright/http/HTTPHelper.cpp
index 77845e2..b895f03 100644
--- a/media/libstagefright/http/HTTPHelper.cpp
+++ b/media/libstagefright/http/HTTPHelper.cpp
@@ -42,11 +42,11 @@
             env, env->FindClass("android/media/MediaHTTPService"));
     CHECK(clazz.get() != NULL);
 
-    jmethodID constructID = env->GetMethodID(clazz.get(), "<init>", "()V");
+    jmethodID constructID = env->GetMethodID(clazz.get(), "<init>", "(Ljava/util/List;)V");
     CHECK(constructID != NULL);
 
     ScopedLocalRef<jobject> httpServiceObj(
-            env, env->NewObject(clazz.get(), constructID));
+            env, env->NewObject(clazz.get(), constructID, NULL));
 
     sp<IMediaHTTPService> httpService;
     if (httpServiceObj.get() != NULL) {
diff --git a/media/libstagefright/http/MediaHTTP.cpp b/media/libstagefright/http/MediaHTTP.cpp
index 7c9247e..0fba3dc 100644
--- a/media/libstagefright/http/MediaHTTP.cpp
+++ b/media/libstagefright/http/MediaHTTP.cpp
@@ -30,10 +30,7 @@
 namespace android {
 
 MediaHTTP::MediaHTTP(const sp<MediaHTTPConnection> &conn)
-    : mInitCheck((conn != NULL) ? OK : NO_INIT),
-      mHTTPConnection(conn),
-      mCachedSizeValid(false),
-      mCachedSize(0ll),
+    : ClearMediaHTTP(conn),
       mDrmManagerClient(NULL) {
 }
 
@@ -41,117 +38,6 @@
     clearDRMState_l();
 }
 
-status_t MediaHTTP::connect(
-        const char *uri,
-        const KeyedVector<String8, String8> *headers,
-        off64_t /* offset */) {
-    if (mInitCheck != OK) {
-        return mInitCheck;
-    }
-
-    KeyedVector<String8, String8> extHeaders;
-    if (headers != NULL) {
-        extHeaders = *headers;
-    }
-
-    if (extHeaders.indexOfKey(String8("User-Agent")) < 0) {
-        extHeaders.add(String8("User-Agent"), String8(MakeUserAgent().c_str()));
-    }
-
-    mLastURI = uri;
-    // reconnect() calls with uri == old mLastURI.c_str(), which gets zapped
-    // as part of the above assignment. Ensure no accidental later use.
-    uri = NULL;
-
-    bool success = mHTTPConnection->connect(mLastURI.c_str(), &extHeaders);
-
-    mLastHeaders = extHeaders;
-
-    mCachedSizeValid = false;
-
-    if (success) {
-        AString sanitized = uriDebugString(mLastURI);
-        mName = String8::format("MediaHTTP(%s)", sanitized.c_str());
-    }
-
-    return success ? OK : UNKNOWN_ERROR;
-}
-
-void MediaHTTP::disconnect() {
-    mName = String8("MediaHTTP(<disconnected>)");
-    if (mInitCheck != OK) {
-        return;
-    }
-
-    mHTTPConnection->disconnect();
-}
-
-status_t MediaHTTP::initCheck() const {
-    return mInitCheck;
-}
-
-ssize_t MediaHTTP::readAt(off64_t offset, void *data, size_t size) {
-    if (mInitCheck != OK) {
-        return mInitCheck;
-    }
-
-    int64_t startTimeUs = ALooper::GetNowUs();
-
-    size_t numBytesRead = 0;
-    while (numBytesRead < size) {
-        size_t copy = size - numBytesRead;
-
-        if (copy > 64 * 1024) {
-            // limit the buffer sizes transferred across binder boundaries
-            // to avoid spurious transaction failures.
-            copy = 64 * 1024;
-        }
-
-        ssize_t n = mHTTPConnection->readAt(
-                offset + numBytesRead, (uint8_t *)data + numBytesRead, copy);
-
-        if (n < 0) {
-            return n;
-        } else if (n == 0) {
-            break;
-        }
-
-        numBytesRead += n;
-    }
-
-    int64_t delayUs = ALooper::GetNowUs() - startTimeUs;
-
-    addBandwidthMeasurement(numBytesRead, delayUs);
-
-    return numBytesRead;
-}
-
-status_t MediaHTTP::getSize(off64_t *size) {
-    if (mInitCheck != OK) {
-        return mInitCheck;
-    }
-
-    // Caching the returned size so that it stays valid even after a
-    // disconnect. NuCachedSource2 relies on this.
-
-    if (!mCachedSizeValid) {
-        mCachedSize = mHTTPConnection->getSize();
-        mCachedSizeValid = true;
-    }
-
-    *size = mCachedSize;
-
-    return *size < 0 ? *size : static_cast<status_t>(OK);
-}
-
-uint32_t MediaHTTP::flags() {
-    return kWantsPrefetching | kIsHTTPBasedSource;
-}
-
-status_t MediaHTTP::reconnectAtOffset(off64_t offset) {
-    return connect(mLastURI.c_str(), &mLastHeaders, offset);
-}
-
 // DRM...
 
 sp<DecryptHandle> MediaHTTP::DrmInitialization(const char* mime) {
@@ -176,33 +62,6 @@
     return mDecryptHandle;
 }
 
-String8 MediaHTTP::getUri() {
-    if (mInitCheck != OK) {
-        return String8::empty();
-    }
-
-    String8 uri;
-    if (OK == mHTTPConnection->getUri(&uri)) {
-        return uri;
-    }
-    return String8(mLastURI.c_str());
-}
-
-String8 MediaHTTP::getMIMEType() const {
-    if (mInitCheck != OK) {
-        return String8("application/octet-stream");
-    }
-
-    String8 mimeType;
-    status_t err = mHTTPConnection->getMIMEType(&mimeType);
-
-    if (err != OK) {
-        return String8("application/octet-stream");
-    }
-
-    return mimeType;
-}
-
 void MediaHTTP::clearDRMState_l() {
     if (mDecryptHandle != NULL) {
         // To release mDecryptHandle
diff --git a/media/libstagefright/httplive/HTTPDownloader.cpp b/media/libstagefright/httplive/HTTPDownloader.cpp
index 72604e3..59265fe 100644
--- a/media/libstagefright/httplive/HTTPDownloader.cpp
+++ b/media/libstagefright/httplive/HTTPDownloader.cpp
@@ -26,8 +26,8 @@
 #include <media/MediaHTTPService.h>
 #include <media/stagefright/foundation/ABuffer.h>
 #include <media/stagefright/foundation/ADebug.h>
-#include <media/stagefright/MediaHTTP.h>
-#include <media/stagefright/FileSource.h>
+#include <media/stagefright/ClearMediaHTTP.h>
+#include <media/stagefright/ClearFileSource.h>
 #include <openssl/aes.h>
 #include <openssl/md5.h>
 #include <utils/Mutex.h>
@@ -38,7 +38,7 @@
 HTTPDownloader::HTTPDownloader(
         const sp<MediaHTTPService> &httpService,
         const KeyedVector<String8, String8> &headers) :
-    mHTTPDataSource(new MediaHTTP(httpService->makeHTTPConnection())),
+    mHTTPDataSource(new ClearMediaHTTP(httpService->makeHTTPConnection())),
     mExtraHeaders(headers),
     mDisconnecting(false) {
 }
@@ -91,7 +91,7 @@
 
     if (reconnect) {
         if (!strncasecmp(url, "file://", 7)) {
-            mDataSource = new FileSource(url + 7);
+            mDataSource = new ClearFileSource(url + 7);
         } else if (strncasecmp(url, "http://", 7)
                 && strncasecmp(url, "https://", 8)) {
             return ERROR_UNSUPPORTED;
diff --git a/media/libstagefright/id3/ID3.cpp b/media/libstagefright/id3/ID3.cpp
index a0a62f4..b489183 100644
--- a/media/libstagefright/id3/ID3.cpp
+++ b/media/libstagefright/id3/ID3.cpp
@@ -21,6 +21,8 @@
 #include "../include/ID3.h"
 
 #include <media/DataSource.h>
+#include <media/MediaExtractorPluginApi.h>
+#include <media/MediaExtractorPluginHelper.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/ByteUtils.h>
 #include <utils/String8.h>
@@ -56,6 +58,55 @@
     DISALLOW_EVIL_CONSTRUCTORS(MemorySource);
 };
 
+class DataSourceUnwrapper : public DataSourceBase {
+
+public:
+    explicit DataSourceUnwrapper(DataSourceHelper *sourcehelper) {
+        mSource = sourcehelper;
+    }
+    virtual status_t initCheck() const { return OK; }
+
+    // Returns the number of bytes read, or -1 on failure. It's not an error if
+    // this returns zero; it just means the given offset is equal to, or
+    // beyond, the end of the source.
+    virtual ssize_t readAt(off64_t offset, void *data, size_t size) {
+        return mSource->readAt(offset, data, size);
+    }
+
+    // May return ERROR_UNSUPPORTED.
+    virtual status_t getSize(off64_t *size) {
+        return mSource->getSize(size);
+    }
+
+    virtual bool getUri(char * /*uriString*/, size_t /*bufferSize*/) {
+        return false;
+    }
+
+    virtual uint32_t flags() {
+        return 0;
+    }
+
+    virtual void close() {};
+private:
+    DataSourceHelper *mSource;
+};
+
+
+ID3::ID3(DataSourceHelper *sourcehelper, bool ignoreV1, off64_t offset)
+    : mIsValid(false),
+      mData(NULL),
+      mSize(0),
+      mFirstFrameOffset(0),
+      mVersion(ID3_UNKNOWN),
+      mRawSize(0) {
+    DataSourceUnwrapper source(sourcehelper);
+    mIsValid = parseV2(&source, offset);
+
+    if (!mIsValid && !ignoreV1) {
+        mIsValid = parseV1(&source);
+    }
+}
+
 ID3::ID3(DataSourceBase *source, bool ignoreV1, off64_t offset)
     : mIsValid(false),
       mData(NULL),
diff --git a/media/libstagefright/include/ID3.h b/media/libstagefright/include/ID3.h
index 7c2391e..5e433ea 100644
--- a/media/libstagefright/include/ID3.h
+++ b/media/libstagefright/include/ID3.h
@@ -24,6 +24,7 @@
 
 class DataSourceBase;
 class String8;
+class DataSourceHelper;
 
 struct ID3 {
     enum Version {
@@ -35,6 +36,7 @@
         ID3_V2_4,
     };
 
+    explicit ID3(DataSourceHelper *source, bool ignoreV1 = false, off64_t offset = 0);
     explicit ID3(DataSourceBase *source, bool ignoreV1 = false, off64_t offset = 0);
     ID3(const uint8_t *data, size_t size, bool ignoreV1 = false);
     ~ID3();
diff --git a/media/libstagefright/include/StagefrightMetadataRetriever.h b/media/libstagefright/include/StagefrightMetadataRetriever.h
index f78e125..a7090ad 100644
--- a/media/libstagefright/include/StagefrightMetadataRetriever.h
+++ b/media/libstagefright/include/StagefrightMetadataRetriever.h
@@ -26,7 +26,6 @@
 namespace android {
 
 class DataSource;
-class MediaExtractor;
 struct ImageDecoder;
 struct FrameRect;
 
diff --git a/media/libstagefright/include/media/stagefright/ClearDataSourceFactory.h b/media/libstagefright/include/media/stagefright/ClearDataSourceFactory.h
new file mode 100644
index 0000000..12bcdd3
--- /dev/null
+++ b/media/libstagefright/include/media/stagefright/ClearDataSourceFactory.h
@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef DATA_SOURCE_FACTORY2_H_
+
+#define DATA_SOURCE_FACTORY2_H_
+
+#include <sys/types.h>
+#include <utils/RefBase.h>
+
+namespace android {
+
+struct MediaHTTPService;
+class String8;
+struct HTTPBase;
+
+class ClearDataSourceFactory {
+public:
+    static sp<DataSource> CreateFromURI(
+            const sp<MediaHTTPService> &httpService,
+            const char *uri,
+            const KeyedVector<String8, String8> *headers = NULL,
+            String8 *contentType = NULL,
+            HTTPBase *httpSource = NULL);
+
+    static sp<DataSource> CreateMediaHTTP(const sp<MediaHTTPService> &httpService);
+    static sp<DataSource> CreateFromFd(int fd, int64_t offset, int64_t length);
+};
+
+}  // namespace android
+
+#endif  // DATA_SOURCE_FACTORY2_H_
diff --git a/media/libstagefright/include/media/stagefright/ClearFileSource.h b/media/libstagefright/include/media/stagefright/ClearFileSource.h
new file mode 100644
index 0000000..be83748
--- /dev/null
+++ b/media/libstagefright/include/media/stagefright/ClearFileSource.h
@@ -0,0 +1,68 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef CLEAR_FILE_SOURCE_H_
+
+#define CLEAR_FILE_SOURCE_H_
+
+#include <stdio.h>
+
+#include <media/DataSource.h>
+#include <media/stagefright/MediaErrors.h>
+#include <utils/threads.h>
+
+namespace android {
+
+class ClearFileSource : public DataSource {
+public:
+    ClearFileSource(const char *filename);
+    // ClearFileSource takes ownership and will close the fd
+    ClearFileSource(int fd, int64_t offset, int64_t length);
+
+    virtual status_t initCheck() const;
+
+    virtual ssize_t readAt(off64_t offset, void *data, size_t size);
+
+    virtual status_t getSize(off64_t *size);
+
+    virtual uint32_t flags() {
+        return kIsLocalFileSource;
+    }
+
+    virtual String8 toString() {
+        return mName;
+    }
+
+protected:
+    virtual ~ClearFileSource();
+    virtual ssize_t readAt_l(off64_t offset, void *data, size_t size);
+
+    int mFd;
+    int64_t mOffset;
+    int64_t mLength;
+    Mutex mLock;
+
+private:
+    String8 mName;
+
+    ClearFileSource(const ClearFileSource &);
+    ClearFileSource &operator=(const ClearFileSource &);
+};
+
+}  // namespace android
+
+#endif  // CLEAR_FILE_SOURCE_H_
+
diff --git a/media/libstagefright/include/media/stagefright/ClearMediaHTTP.h b/media/libstagefright/include/media/stagefright/ClearMediaHTTP.h
new file mode 100644
index 0000000..7fe9c74
--- /dev/null
+++ b/media/libstagefright/include/media/stagefright/ClearMediaHTTP.h
@@ -0,0 +1,71 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef CLEAR_MEDIA_HTTP_H_
+
+#define CLEAR_MEDIA_HTTP_H_
+
+#include <media/stagefright/foundation/AString.h>
+
+#include "include/HTTPBase.h"
+
+namespace android {
+
+struct MediaHTTPConnection;
+
+struct ClearMediaHTTP : public HTTPBase {
+    ClearMediaHTTP(const sp<MediaHTTPConnection> &conn);
+
+    virtual status_t connect(
+            const char *uri,
+            const KeyedVector<String8, String8> *headers,
+            off64_t offset);
+
+    virtual void disconnect();
+
+    virtual status_t initCheck() const;
+
+    virtual ssize_t readAt(off64_t offset, void *data, size_t size);
+
+    virtual status_t getSize(off64_t *size);
+
+    virtual uint32_t flags();
+
+    virtual status_t reconnectAtOffset(off64_t offset);
+
+protected:
+    virtual ~ClearMediaHTTP();
+
+    virtual String8 getUri();
+    virtual String8 getMIMEType() const;
+
+    AString mLastURI;
+
+private:
+    status_t mInitCheck;
+    sp<MediaHTTPConnection> mHTTPConnection;
+
+    KeyedVector<String8, String8> mLastHeaders;
+
+    bool mCachedSizeValid;
+    off64_t mCachedSize;
+
+    DISALLOW_EVIL_CONSTRUCTORS(ClearMediaHTTP);
+};
+
+}  // namespace android
+
+#endif  // CLEAR_MEDIA_HTTP_H_
diff --git a/media/libstagefright/include/media/stagefright/ColorConverter.h b/media/libstagefright/include/media/stagefright/ColorConverter.h
index 2b8c7c8..6d4c1bf 100644
--- a/media/libstagefright/include/media/stagefright/ColorConverter.h
+++ b/media/libstagefright/include/media/stagefright/ColorConverter.h
@@ -35,6 +35,8 @@
 
     bool isDstRGB() const;
 
+    void setSrcColorSpace(uint32_t standard, uint32_t range, uint32_t transfer);
+
     status_t convert(
             const void *srcBits,
             size_t srcWidth, size_t srcHeight, size_t srcStride,
@@ -46,6 +48,15 @@
             size_t dstCropRight, size_t dstCropBottom);
 
 private:
+    struct ColorSpace {
+        uint32_t mStandard;
+        uint32_t mRange;
+        uint32_t mTransfer;
+
+        bool isBt709();
+        bool isJpeg();
+    };
+
     struct BitmapParams {
         BitmapParams(
                 void *bits,
@@ -65,6 +76,7 @@
     };
 
     OMX_COLOR_FORMATTYPE mSrcFormat, mDstFormat;
+    ColorSpace mSrcColorSpace;
     uint8_t *mClip;
 
     uint8_t *initClip();
diff --git a/media/libstagefright/include/media/stagefright/FileSource.h b/media/libstagefright/include/media/stagefright/FileSource.h
index 8604890..b610eef 100644
--- a/media/libstagefright/include/media/stagefright/FileSource.h
+++ b/media/libstagefright/include/media/stagefright/FileSource.h
@@ -20,47 +20,29 @@
 
 #include <stdio.h>
 
-#include <media/DataSource.h>
+#include <media/stagefright/ClearFileSource.h>
 #include <media/stagefright/MediaErrors.h>
 #include <utils/threads.h>
 #include <drm/DrmManagerClient.h>
 
 namespace android {
 
-class FileSource : public DataSource {
+class FileSource : public ClearFileSource {
 public:
     FileSource(const char *filename);
     // FileSource takes ownership and will close the fd
     FileSource(int fd, int64_t offset, int64_t length);
 
-    virtual status_t initCheck() const;
-
     virtual ssize_t readAt(off64_t offset, void *data, size_t size);
 
-    virtual status_t getSize(off64_t *size);
-
-    virtual uint32_t flags() {
-        return kIsLocalFileSource;
-    }
-
     virtual sp<DecryptHandle> DrmInitialization(const char *mime);
 
-    virtual String8 toString() {
-        return mName;
-    }
-
     static bool requiresDrm(int fd, int64_t offset, int64_t length, const char *mime);
 
 protected:
     virtual ~FileSource();
 
 private:
-    int mFd;
-    int64_t mOffset;
-    int64_t mLength;
-    Mutex mLock;
-    String8 mName;
-
     /*for DRM*/
     sp<DecryptHandle> mDecryptHandle;
     DrmManagerClient *mDrmManagerClient;
@@ -68,7 +50,7 @@
     ssize_t mDrmBufSize;
     unsigned char *mDrmBuf;
 
-    ssize_t readAtDRM(off64_t offset, void *data, size_t size);
+    ssize_t readAtDRM_l(off64_t offset, void *data, size_t size);
 
     FileSource(const FileSource &);
     FileSource &operator=(const FileSource &);
diff --git a/media/libstagefright/include/media/stagefright/InterfaceUtils.h b/media/libstagefright/include/media/stagefright/InterfaceUtils.h
index f0ebd48..b83a958 100644
--- a/media/libstagefright/include/media/stagefright/InterfaceUtils.h
+++ b/media/libstagefright/include/media/stagefright/InterfaceUtils.h
@@ -18,7 +18,6 @@
 #define INTERFACE_UTILS_H_
 
 #include <utils/RefBase.h>
-#include <media/MediaExtractor.h>
 #include <media/stagefright/RemoteMediaExtractor.h>
 #include <media/MediaSource.h>
 #include <media/IMediaExtractor.h>
diff --git a/media/libstagefright/include/media/stagefright/MediaExtractor.h b/media/libstagefright/include/media/stagefright/MediaExtractor.h
new file mode 100644
index 0000000..d9456ab
--- /dev/null
+++ b/media/libstagefright/include/media/stagefright/MediaExtractor.h
@@ -0,0 +1,110 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef MEDIA_EXTRACTOR_H_
+
+#define MEDIA_EXTRACTOR_H_
+
+#include <stdio.h>
+#include <vector>
+
+#include <utils/Errors.h>
+#include <utils/Log.h>
+#include <utils/RefBase.h>
+#include <media/MediaExtractorPluginApi.h>
+#include <media/MediaExtractorPluginHelper.h>
+
+namespace android {
+
+class DataSourceBase;
+class MetaDataBase;
+struct MediaTrack;
+
+
+class ExtractorAllocTracker {
+public:
+    ExtractorAllocTracker() {
+        ALOGD("extractor allocated: %p", this);
+    }
+    virtual ~ExtractorAllocTracker() {
+        ALOGD("extractor freed: %p", this);
+    }
+};
+
+class MediaExtractor
+// : public ExtractorAllocTracker
+{
+public:
+    virtual ~MediaExtractor();
+    virtual size_t countTracks() = 0;
+    virtual MediaTrack *getTrack(size_t index) = 0;
+
+    enum GetTrackMetaDataFlags {
+        kIncludeExtensiveMetaData = 1
+    };
+    virtual status_t getTrackMetaData(
+            MetaDataBase& meta,
+            size_t index, uint32_t flags = 0) = 0;
+
+    // Return container specific meta-data. The default implementation
+    // returns an empty metadata object.
+    virtual status_t getMetaData(MetaDataBase& meta) = 0;
+
+    enum Flags {
+        CAN_SEEK_BACKWARD  = 1,  // the "seek 10secs back button"
+        CAN_SEEK_FORWARD   = 2,  // the "seek 10secs forward button"
+        CAN_PAUSE          = 4,
+        CAN_SEEK           = 8,  // the "seek bar"
+    };
+
+    // If subclasses do _not_ override this, the default is
+    // CAN_SEEK_BACKWARD | CAN_SEEK_FORWARD | CAN_SEEK | CAN_PAUSE
+    virtual uint32_t flags() const;
+
+    virtual status_t setMediaCas(const uint8_t* /*casToken*/, size_t /*size*/) {
+        return INVALID_OPERATION;
+    }
+
+    virtual const char * name() { return "<unspecified>"; }
+
+protected:
+    MediaExtractor();
+
+private:
+    MediaExtractor(const MediaExtractor &);
+    MediaExtractor &operator=(const MediaExtractor &);
+};
+
+class MediaExtractorCUnwrapper : public MediaExtractor {
+public:
+    explicit MediaExtractorCUnwrapper(CMediaExtractor *wrapper);
+    virtual size_t countTracks();
+    virtual MediaTrack *getTrack(size_t index);
+    virtual status_t getTrackMetaData(MetaDataBase& meta, size_t index, uint32_t flags = 0);
+    virtual status_t getMetaData(MetaDataBase& meta);
+    virtual const char * name();
+    virtual uint32_t flags() const;
+    virtual status_t setMediaCas(const uint8_t* casToken, size_t size);
+protected:
+    virtual ~MediaExtractorCUnwrapper();
+private:
+    CMediaExtractor *wrapper;
+};
+
+
+}  // namespace android
+
+#endif  // MEDIA_EXTRACTOR_H_
diff --git a/media/libstagefright/include/media/stagefright/MediaExtractorFactory.h b/media/libstagefright/include/media/stagefright/MediaExtractorFactory.h
index d5f4b35..f93d610 100644
--- a/media/libstagefright/include/media/stagefright/MediaExtractorFactory.h
+++ b/media/libstagefright/include/media/stagefright/MediaExtractorFactory.h
@@ -21,7 +21,6 @@
 #include <stdio.h>
 
 #include <media/IMediaExtractor.h>
-#include <media/MediaExtractor.h>
 
 namespace android {
 
@@ -49,8 +48,8 @@
     static void RegisterExtractor(
             const sp<ExtractorPlugin> &plugin, std::list<sp<ExtractorPlugin>> &pluginList);
 
-    static MediaExtractor::CreatorFunc sniff(DataSourceBase *source,
-            float *confidence, void **meta, MediaExtractor::FreeMetaFunc *freeMeta,
+    static CreatorFunc sniff(const sp<DataSource> &source,
+            float *confidence, void **meta, FreeMetaFunc *freeMeta,
             sp<ExtractorPlugin> &plugin);
 
     static void UpdateExtractors(const char *newUpdateApkPath);
diff --git a/media/libstagefright/include/media/stagefright/MediaHTTP.h b/media/libstagefright/include/media/stagefright/MediaHTTP.h
index fe0e613..acaa6c4 100644
--- a/media/libstagefright/include/media/stagefright/MediaHTTP.h
+++ b/media/libstagefright/include/media/stagefright/MediaHTTP.h
@@ -19,50 +19,21 @@
 #define MEDIA_HTTP_H_
 
 #include <media/stagefright/foundation/AString.h>
-
-#include "include/HTTPBase.h"
+#include <media/stagefright/ClearMediaHTTP.h>
 
 namespace android {
 
 struct MediaHTTPConnection;
 
-struct MediaHTTP : public HTTPBase {
+struct MediaHTTP : public ClearMediaHTTP {
     MediaHTTP(const sp<MediaHTTPConnection> &conn);
 
-    virtual status_t connect(
-            const char *uri,
-            const KeyedVector<String8, String8> *headers,
-            off64_t offset);
-
-    virtual void disconnect();
-
-    virtual status_t initCheck() const;
-
-    virtual ssize_t readAt(off64_t offset, void *data, size_t size);
-
-    virtual status_t getSize(off64_t *size);
-
-    virtual uint32_t flags();
-
-    virtual status_t reconnectAtOffset(off64_t offset);
-
 protected:
     virtual ~MediaHTTP();
 
     virtual sp<DecryptHandle> DrmInitialization(const char* mime);
-    virtual String8 getUri();
-    virtual String8 getMIMEType() const;
 
 private:
-    status_t mInitCheck;
-    sp<MediaHTTPConnection> mHTTPConnection;
-
-    KeyedVector<String8, String8> mLastHeaders;
-    AString mLastURI;
-
-    bool mCachedSizeValid;
-    off64_t mCachedSize;
-
     sp<DecryptHandle> mDecryptHandle;
     DrmManagerClient *mDrmManagerClient;
 
diff --git a/media/libstagefright/include/media/stagefright/MetaDataUtils.h b/media/libstagefright/include/media/stagefright/MetaDataUtils.h
index d5a8080..4a7107d 100644
--- a/media/libstagefright/include/media/stagefright/MetaDataUtils.h
+++ b/media/libstagefright/include/media/stagefright/MetaDataUtils.h
@@ -24,6 +24,7 @@
 
 struct ABuffer;
 bool MakeAVCCodecSpecificData(MetaDataBase &meta, const uint8_t *data, size_t size);
+bool MakeAACCodecSpecificData(MetaDataBase &meta, const uint8_t *data, size_t size);
 bool MakeAACCodecSpecificData(MetaDataBase &meta, unsigned profile, unsigned sampling_freq_index,
         unsigned channel_configuration);
 
diff --git a/media/libstagefright/include/media/stagefright/RemoteMediaExtractor.h b/media/libstagefright/include/media/stagefright/RemoteMediaExtractor.h
index 509e669..9925114 100644
--- a/media/libstagefright/include/media/stagefright/RemoteMediaExtractor.h
+++ b/media/libstagefright/include/media/stagefright/RemoteMediaExtractor.h
@@ -18,7 +18,7 @@
 #define REMOTE_MEDIA_EXTRACTOR_H_
 
 #include <media/IMediaExtractor.h>
-#include <media/MediaExtractor.h>
+#include <media/stagefright/MediaExtractor.h>
 #include <media/stagefright/foundation/ABase.h>
 
 namespace android {
diff --git a/media/libstagefright/mpeg2ts/ATSParser.cpp b/media/libstagefright/mpeg2ts/ATSParser.cpp
index cc31815..fb498d4 100644
--- a/media/libstagefright/mpeg2ts/ATSParser.cpp
+++ b/media/libstagefright/mpeg2ts/ATSParser.cpp
@@ -775,10 +775,12 @@
     ALOGV("new stream PID 0x%02x, type 0x%02x, scrambled %d, SampleEncrypted: %d",
             elementaryPID, streamType, mScrambled, mSampleEncrypted);
 
-    uint32_t flags =
-            (isVideo() && mScrambled) ? ElementaryStreamQueue::kFlag_ScrambledData :
-            (mSampleEncrypted) ? ElementaryStreamQueue::kFlag_SampleEncryptedData :
-            0;
+    uint32_t flags = 0;
+    if (((isVideo() || isAudio()) && mScrambled)) {
+        flags = ElementaryStreamQueue::kFlag_ScrambledData;
+    } else if (mSampleEncrypted) {
+        flags = ElementaryStreamQueue::kFlag_SampleEncryptedData;
+    }
 
     ElementaryStreamQueue::Mode mode = ElementaryStreamQueue::INVALID;
 
@@ -815,6 +817,10 @@
             mode = ElementaryStreamQueue::AC3;
             break;
 
+        case STREAMTYPE_EAC3:
+            mode = ElementaryStreamQueue::EAC3;
+            break;
+
         case STREAMTYPE_PES_PRIVATE_DATA:
             if (mStreamTypeExt == EXT_DESCRIPTOR_DVB_AC4) {
                 mode = ElementaryStreamQueue::AC4;
@@ -1026,6 +1032,7 @@
         case STREAMTYPE_MPEG2_AUDIO_ADTS:
         case STREAMTYPE_LPCM_AC3:
         case STREAMTYPE_AC3:
+        case STREAMTYPE_EAC3:
         case STREAMTYPE_AAC_ENCRYPTED:
         case STREAMTYPE_AC3_ENCRYPTED:
             return true;
@@ -1499,7 +1506,13 @@
         descrambleBytes = bytesWritten;
     }
 
-    sp<ABuffer> buffer;
+    // |buffer| points to the buffer from which we'd parse the PES header.
+    // When the output stream is scrambled, it points to mDescrambledBuffer
+    // (unless all packets in this PES are actually clear, in which case,
+    // it points to mBuffer since we never copied into mDescrambledBuffer).
+    // When the output stream is clear, it points to mBuffer, and we'll
+    // copy all descrambled data back to mBuffer.
+    sp<ABuffer> buffer = mBuffer;
     if (mQueue->isScrambled()) {
         // Queue subSample info for scrambled queue
         sp<ABuffer> clearSizesBuffer = new ABuffer(mSubSamples.size() * 4);
@@ -1528,15 +1541,18 @@
         }
         // Pass the original TS subsample size now. The PES header adjust
         // will be applied when the scrambled AU is dequeued.
+        // Note that if descrambleBytes is 0, it means this PES contains only
+        // all ts packets, leadingClearBytes is entire buffer size.
         mQueue->appendScrambledData(
-                mBuffer->data(), mBuffer->size(), sctrl,
-                isSync, clearSizesBuffer, encSizesBuffer);
+                mBuffer->data(), mBuffer->size(),
+                (descrambleBytes > 0) ? descrambleBytes : mBuffer->size(),
+                sctrl, isSync, clearSizesBuffer, encSizesBuffer);
 
-        buffer = mDescrambledBuffer;
+        if (descrambleBytes > 0) {
+            buffer = mDescrambledBuffer;
+        }
     } else {
         memcpy(mBuffer->data(), mDescrambledBuffer->data(), descrambleBytes);
-
-        buffer = mBuffer;
     }
 
     ABitReader br(buffer->data(), buffer->size());
diff --git a/media/libstagefright/mpeg2ts/ATSParser.h b/media/libstagefright/mpeg2ts/ATSParser.h
index adb4fb2..a31dc46 100644
--- a/media/libstagefright/mpeg2ts/ATSParser.h
+++ b/media/libstagefright/mpeg2ts/ATSParser.h
@@ -154,6 +154,7 @@
         // Stream type 0x83 is non-standard,
         // it could be LPCM or TrueHD AC3
         STREAMTYPE_LPCM_AC3             = 0x83,
+        STREAMTYPE_EAC3                 = 0x87,
 
         //Sample Encrypted types
         STREAMTYPE_H264_ENCRYPTED       = 0xDB,
diff --git a/media/libstagefright/mpeg2ts/ESQueue.cpp b/media/libstagefright/mpeg2ts/ESQueue.cpp
index 34d0bcc..fb8b9fd 100644
--- a/media/libstagefright/mpeg2ts/ESQueue.cpp
+++ b/media/libstagefright/mpeg2ts/ESQueue.cpp
@@ -210,8 +210,81 @@
     return payloadSize;
 }
 
-static bool IsSeeminglyValidAC3Header(const uint8_t *ptr, size_t size) {
-    return parseAC3SyncFrame(ptr, size, NULL) > 0;
+// Parse EAC3 header assuming the current ptr is start position of syncframe,
+// update metadata only applicable, and return the payload size
+// ATSC A/52:2012 E2.3.1
+static unsigned parseEAC3SyncFrame(
+    const uint8_t *ptr, size_t size, sp<MetaData> *metaData) {
+    static const unsigned channelCountTable[] = {2, 1, 2, 3, 3, 4, 4, 5};
+    static const unsigned samplingRateTable[] = {48000, 44100, 32000};
+    static const unsigned samplingRateTable2[] = {24000, 22050, 16000};
+
+    ABitReader bits(ptr, size);
+    if (bits.numBitsLeft() < 16) {
+        ALOGE("Not enough bits left for further parsing");
+        return 0;
+    }
+    if (bits.getBits(16) != 0x0B77) {
+        ALOGE("No valid sync word in EAC3 header");
+        return 0;
+    }
+
+    // we parse up to bsid so there needs to be at least that many bits
+    if (bits.numBitsLeft() < 2 + 3 + 11 + 2 + 2 + 3 + 1 + 5) {
+        ALOGE("Not enough bits left for further parsing");
+        return 0;
+    }
+
+    unsigned strmtyp = bits.getBits(2);
+    if (strmtyp == 3) {
+        ALOGE("Incorrect strmtyp in EAC3 header");
+        return 0;
+    }
+
+    unsigned substreamid = bits.getBits(3);
+    // only the first independent stream is supported
+    if ((strmtyp == 0 || strmtyp == 2) && substreamid != 0)
+        return 0;
+
+    unsigned frmsiz = bits.getBits(11);
+    unsigned fscod = bits.getBits(2);
+
+    unsigned samplingRate = 0;
+    if (fscod == 0x3) {
+        unsigned fscod2 = bits.getBits(2);
+        if (fscod2 == 3) {
+            ALOGW("Incorrect fscod2 in EAC3 header");
+            return 0;
+        }
+        samplingRate = samplingRateTable2[fscod2];
+    } else {
+        samplingRate = samplingRateTable[fscod];
+        unsigned numblkscod __unused = bits.getBits(2);
+    }
+
+    unsigned acmod = bits.getBits(3);
+    unsigned lfeon = bits.getBits(1);
+    unsigned bsid = bits.getBits(5);
+    if (bsid < 11 || bsid > 16) {
+        ALOGW("Incorrect bsid in EAC3 header. Could be AC-3 or some unknown EAC3 format");
+        return 0;
+    }
+
+    // we currently only support the first independant stream
+    if (metaData != NULL && (strmtyp == 0 || strmtyp == 2)) {
+        unsigned channelCount = channelCountTable[acmod] + lfeon;
+        ALOGV("EAC3 channelCount = %d", channelCount);
+        ALOGV("EAC3 samplingRate = %d", samplingRate);
+        (*metaData)->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_EAC3);
+        (*metaData)->setInt32(kKeyChannelCount, channelCount);
+        (*metaData)->setInt32(kKeySampleRate, samplingRate);
+        (*metaData)->setInt32(kKeyIsSyncFrame, 1);
+    }
+
+    unsigned payloadSize = frmsiz + 1;
+    payloadSize <<= 1;  // convert from 16-bit words to bytes
+
+    return payloadSize;
 }
 
 // Parse AC4 header assuming the current ptr is start position of syncframe
@@ -366,7 +439,8 @@
         ALOGE("appending data after EOS");
         return ERROR_MALFORMED;
     }
-    if (mBuffer == NULL || mBuffer->size() == 0) {
+
+    if (!isScrambled() && (mBuffer == NULL || mBuffer->size() == 0)) {
         switch (mMode) {
             case H264:
             case MPEG_VIDEO:
@@ -477,12 +551,19 @@
             }
 
             case AC3:
+            case EAC3:
             {
                 uint8_t *ptr = (uint8_t *)data;
 
                 ssize_t startOffset = -1;
                 for (size_t i = 0; i < size; ++i) {
-                    if (IsSeeminglyValidAC3Header(&ptr[i], size - i)) {
+                    unsigned payloadSize = 0;
+                    if (mMode == AC3) {
+                        payloadSize = parseAC3SyncFrame(&ptr[i], size - i, NULL);
+                    } else if (mMode == EAC3) {
+                        payloadSize = parseEAC3SyncFrame(&ptr[i], size - i, NULL);
+                    }
+                    if (payloadSize > 0) {
                         startOffset = i;
                         break;
                     }
@@ -493,7 +574,7 @@
                 }
 
                 if (startOffset > 0) {
-                    ALOGI("found something resembling an AC3 syncword at "
+                    ALOGI("found something resembling an (E)AC3 syncword at "
                           "offset %zd",
                           startOffset);
                 }
@@ -526,8 +607,9 @@
                 }
 
                 if (startOffset > 0) {
-                    ALOGI("found something resembling an AC4 syncword at offset %zd",
-                         startOffset);
+                    ALOGI("found something resembling an AC4 syncword at "
+                          "offset %zd",
+                          startOffset);
                 }
                 if (frameSize != size - startOffset) {
                     ALOGV("AC4 frame size is %u bytes, while the buffer size is %zd bytes.",
@@ -617,6 +699,7 @@
 
 void ElementaryStreamQueue::appendScrambledData(
         const void *data, size_t size,
+        size_t leadingClearBytes,
         int32_t keyId, bool isSync,
         sp<ABuffer> clearSizes, sp<ABuffer> encSizes) {
     if (!isScrambled()) {
@@ -644,6 +727,7 @@
 
     ScrambledRangeInfo scrambledInfo;
     scrambledInfo.mLength = size;
+    scrambledInfo.mLeadingClearBytes = leadingClearBytes;
     scrambledInfo.mKeyId = keyId;
     scrambledInfo.mIsSync = isSync;
     scrambledInfo.mClearSizes = clearSizes;
@@ -656,7 +740,6 @@
 
 sp<ABuffer> ElementaryStreamQueue::dequeueScrambledAccessUnit() {
     size_t nextScan = mBuffer->size();
-    mBuffer->setRange(0, 0);
     int32_t pesOffset = 0, pesScramblingControl = 0;
     int64_t timeUs = fetchTimestamp(nextScan, &pesOffset, &pesScramblingControl);
     if (timeUs < 0ll) {
@@ -667,6 +750,7 @@
     // return scrambled unit
     int32_t keyId = pesScramblingControl, isSync = 0, scrambledLength = 0;
     sp<ABuffer> clearSizes, encSizes;
+    size_t leadingClearBytes;
     while (mScrambledRangeInfos.size() > mRangeInfos.size()) {
         auto it = mScrambledRangeInfos.begin();
         ALOGV("[stream %d] fetching scrambled range: size=%zu", mMode, it->mLength);
@@ -684,6 +768,7 @@
         clearSizes = it->mClearSizes;
         encSizes = it->mEncSizes;
         isSync = it->mIsSync;
+        leadingClearBytes = it->mLeadingClearBytes;
         mScrambledRangeInfos.erase(it);
     }
     if (scrambledLength == 0) {
@@ -691,6 +776,70 @@
         return NULL;
     }
 
+    // Retrieve the leading clear bytes info, and use it to set the clear
+    // range on mBuffer. Note that the leading clear bytes includes the
+    // PES header portion, while mBuffer doesn't.
+    if ((int32_t)leadingClearBytes > pesOffset) {
+        mBuffer->setRange(0, leadingClearBytes - pesOffset);
+    } else {
+        mBuffer->setRange(0, 0);
+    }
+
+    // Try to parse formats, and if unavailable set up a dummy format.
+    // Only support the following modes for scrambled content for now.
+    // (will be expanded later).
+    if (mFormat == NULL) {
+        mFormat = new MetaData;
+        switch (mMode) {
+            case H264:
+            {
+                if (!MakeAVCCodecSpecificData(
+                        *mFormat, mBuffer->data(), mBuffer->size())) {
+                    ALOGI("Creating dummy AVC format for scrambled content");
+
+                    mFormat->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_AVC);
+                    mFormat->setInt32(kKeyWidth, 1280);
+                    mFormat->setInt32(kKeyHeight, 720);
+                }
+                break;
+            }
+            case AAC:
+            {
+                if (!MakeAACCodecSpecificData(
+                        *mFormat, mBuffer->data(), mBuffer->size())) {
+                    ALOGI("Creating dummy AAC format for scrambled content");
+
+                    MakeAACCodecSpecificData(*mFormat,
+                            1 /*profile*/, 7 /*sampling_freq_index*/, 1 /*channel_config*/);
+                    mFormat->setInt32(kKeyIsADTS, true);
+                }
+
+                break;
+            }
+            case MPEG_VIDEO:
+            {
+                ALOGI("Creating dummy MPEG format for scrambled content");
+
+                mFormat->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_MPEG2);
+                mFormat->setInt32(kKeyWidth, 1280);
+                mFormat->setInt32(kKeyHeight, 720);
+                break;
+            }
+            default:
+            {
+                ALOGE("Unknown mode for scrambled content");
+                return NULL;
+            }
+        }
+
+        // for MediaExtractor.CasInfo
+        mFormat->setInt32(kKeyCASystemID, mCASystemId);
+        mFormat->setData(kKeyCASessionID,
+                0, mCasSessionId.data(), mCasSessionId.size());
+    }
+
+    mBuffer->setRange(0, 0);
+
     // copy into scrambled access unit
     sp<ABuffer> scrambledAccessUnit = ABuffer::CreateAsCopy(
             mScrambledBuffer->data(), scrambledLength);
@@ -722,7 +871,11 @@
 }
 
 sp<ABuffer> ElementaryStreamQueue::dequeueAccessUnit() {
-    if ((mFlags & kFlag_AlignedData) && mMode == H264 && !isScrambled()) {
+    if (isScrambled()) {
+        return dequeueScrambledAccessUnit();
+    }
+
+    if ((mFlags & kFlag_AlignedData) && mMode == H264) {
         if (mRangeInfos.empty()) {
             return NULL;
         }
@@ -756,7 +909,8 @@
         case AAC:
             return dequeueAccessUnitAAC();
         case AC3:
-            return dequeueAccessUnitAC3();
+        case EAC3:
+            return dequeueAccessUnitEAC3();
         case AC4:
             return dequeueAccessUnitAC4();
         case MPEG_VIDEO:
@@ -776,34 +930,38 @@
     }
 }
 
-sp<ABuffer> ElementaryStreamQueue::dequeueAccessUnitAC3() {
+sp<ABuffer> ElementaryStreamQueue::dequeueAccessUnitEAC3() {
     unsigned syncStartPos = 0;  // in bytes
     unsigned payloadSize = 0;
     sp<MetaData> format = new MetaData;
 
-    ALOGV("dequeueAccessUnit_AC3[%d]: mBuffer %p(%zu)", mAUIndex, mBuffer->data(), mBuffer->size());
+    ALOGV("dequeueAccessUnitEAC3[%d]: mBuffer %p(%zu)", mAUIndex,
+            mBuffer->data(), mBuffer->size());
 
     while (true) {
         if (syncStartPos + 2 >= mBuffer->size()) {
             return NULL;
         }
 
-        payloadSize = parseAC3SyncFrame(
-                mBuffer->data() + syncStartPos,
-                mBuffer->size() - syncStartPos,
-                &format);
+        uint8_t *ptr = mBuffer->data() + syncStartPos;
+        size_t size = mBuffer->size() - syncStartPos;
+        if (mMode == AC3) {
+            payloadSize = parseAC3SyncFrame(ptr, size, &format);
+        } else if (mMode == EAC3) {
+            payloadSize = parseEAC3SyncFrame(ptr, size, &format);
+        }
         if (payloadSize > 0) {
             break;
         }
 
-        ALOGV("dequeueAccessUnit_AC3[%d]: syncStartPos %u payloadSize %u",
+        ALOGV("dequeueAccessUnitEAC3[%d]: syncStartPos %u payloadSize %u",
                 mAUIndex, syncStartPos, payloadSize);
 
         ++syncStartPos;
     }
 
     if (mBuffer->size() < syncStartPos + payloadSize) {
-        ALOGV("Not enough buffer size for AC3");
+        ALOGV("Not enough buffer size for E/AC3");
         return NULL;
     }
 
@@ -811,7 +969,6 @@
         mFormat = format;
     }
 
-
     int64_t timeUs = fetchTimestamp(syncStartPos + payloadSize);
     if (timeUs < 0ll) {
         ALOGE("negative timeUs");
@@ -820,7 +977,12 @@
 
     // Not decrypting if key info not available (e.g., scanner/extractor parsing ts files)
     if (mSampleDecryptor != NULL) {
-        mSampleDecryptor->processAC3(mBuffer->data() + syncStartPos, payloadSize);
+        if (mMode == AC3) {
+            mSampleDecryptor->processAC3(mBuffer->data() + syncStartPos, payloadSize);
+        } else if (mMode == EAC3) {
+            ALOGE("EAC3 AU is encrypted and decryption is not supported");
+            return NULL;
+        }
     }
     mAUIndex++;
 
@@ -1024,25 +1186,11 @@
         bool protection_absent = bits.getBits(1) != 0;
 
         if (mFormat == NULL) {
-            unsigned profile = bits.getBits(2);
-            if (profile == 3u) {
-                ALOGE("profile should not be 3");
-                return NULL;
-            }
-            unsigned sampling_freq_index = bits.getBits(4);
-            bits.getBits(1);  // private_bit
-            unsigned channel_configuration = bits.getBits(3);
-            if (channel_configuration == 0u) {
-                ALOGE("channel_config should not be 0");
-                return NULL;
-            }
-            bits.skipBits(2);  // original_copy, home
-
             mFormat = new MetaData;
-            MakeAACCodecSpecificData(*mFormat,
-                    profile, sampling_freq_index, channel_configuration);
-
-            mFormat->setInt32(kKeyIsADTS, true);
+            if (!MakeAACCodecSpecificData(
+                    *mFormat, mBuffer->data() + offset, mBuffer->size() - offset)) {
+                return NULL;
+            }
 
             int32_t sampleRate;
             int32_t numChannels;
@@ -1057,12 +1205,12 @@
 
             ALOGI("found AAC codec config (%d Hz, %d channels)",
                  sampleRate, numChannels);
-        } else {
-            // profile_ObjectType, sampling_frequency_index, private_bits,
-            // channel_configuration, original_copy, home
-            bits.skipBits(12);
         }
 
+        // profile_ObjectType, sampling_frequency_index, private_bits,
+        // channel_configuration, original_copy, home
+        bits.skipBits(12);
+
         // adts_variable_header
 
         // copyright_identification_bit, copyright_identification_start
@@ -1177,27 +1325,6 @@
 }
 
 sp<ABuffer> ElementaryStreamQueue::dequeueAccessUnitH264() {
-    if (isScrambled()) {
-        if (mBuffer == NULL || mBuffer->size() == 0) {
-            return NULL;
-        }
-        if (mFormat == NULL) {
-            mFormat = new MetaData;
-            if (!MakeAVCCodecSpecificData(*mFormat, mBuffer->data(), mBuffer->size())) {
-                ALOGW("Creating dummy AVC format for scrambled content");
-                mFormat = new MetaData;
-                mFormat->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_AVC);
-                mFormat->setInt32(kKeyWidth, 1280);
-                mFormat->setInt32(kKeyHeight, 720);
-            }
-            // for MediaExtractor.CasInfo
-            mFormat->setInt32(kKeyCASystemID, mCASystemId);
-            mFormat->setData(kKeyCASessionID, 0,
-                    mCasSessionId.data(), mCasSessionId.size());
-        }
-        return dequeueScrambledAccessUnit();
-    }
-
     const uint8_t *data = mBuffer->data();
 
     size_t size = mBuffer->size();
@@ -1497,25 +1624,6 @@
 }
 
 sp<ABuffer> ElementaryStreamQueue::dequeueAccessUnitMPEGVideo() {
-    if (isScrambled()) {
-        if (mBuffer == NULL || mBuffer->size() == 0) {
-            return NULL;
-        }
-        if (mFormat == NULL) {
-            ALOGI("Creating dummy MPEG format for scrambled content");
-            mFormat = new MetaData;
-            mFormat->setCString(kKeyMIMEType, MEDIA_MIMETYPE_VIDEO_MPEG2);
-            mFormat->setInt32(kKeyWidth, 1280);
-            mFormat->setInt32(kKeyHeight, 720);
-
-            // for MediaExtractor.CasInfo
-            mFormat->setInt32(kKeyCASystemID, mCASystemId);
-            mFormat->setData(kKeyCASessionID, 0,
-                    mCasSessionId.data(), mCasSessionId.size());
-        }
-        return dequeueScrambledAccessUnit();
-    }
-
     const uint8_t *data = mBuffer->data();
     size_t size = mBuffer->size();
 
diff --git a/media/libstagefright/mpeg2ts/ESQueue.h b/media/libstagefright/mpeg2ts/ESQueue.h
index 399214a..3227f47 100644
--- a/media/libstagefright/mpeg2ts/ESQueue.h
+++ b/media/libstagefright/mpeg2ts/ESQueue.h
@@ -38,6 +38,7 @@
         H264,
         AAC,
         AC3,
+        EAC3,
         AC4,
         MPEG_AUDIO,
         MPEG_VIDEO,
@@ -60,6 +61,7 @@
 
     void appendScrambledData(
             const void *data, size_t size,
+            size_t leadingClearBytes,
             int32_t keyId, bool isSync,
             sp<ABuffer> clearSizes, sp<ABuffer> encSizes);
 
@@ -85,8 +87,8 @@
     };
 
     struct ScrambledRangeInfo {
-        //int64_t mTimestampUs;
         size_t mLength;
+        size_t mLeadingClearBytes;
         int32_t mKeyId;
         int32_t mIsSync;
         sp<ABuffer> mClearSizes;
@@ -116,7 +118,7 @@
 
     sp<ABuffer> dequeueAccessUnitH264();
     sp<ABuffer> dequeueAccessUnitAAC();
-    sp<ABuffer> dequeueAccessUnitAC3();
+    sp<ABuffer> dequeueAccessUnitEAC3();
     sp<ABuffer> dequeueAccessUnitAC4();
     sp<ABuffer> dequeueAccessUnitMPEGAudio();
     sp<ABuffer> dequeueAccessUnitMPEGVideo();
diff --git a/media/libstagefright/omx/tests/OMXHarness.cpp b/media/libstagefright/omx/tests/OMXHarness.cpp
index 895a4ce..5388ba7 100644
--- a/media/libstagefright/omx/tests/OMXHarness.cpp
+++ b/media/libstagefright/omx/tests/OMXHarness.cpp
@@ -28,7 +28,6 @@
 #include <cutils/properties.h>
 #include <media/DataSource.h>
 #include <media/IMediaHTTPService.h>
-#include <media/MediaExtractor.h>
 #include <media/MediaSource.h>
 #include <media/OMXBuffer.h>
 #include <media/stagefright/foundation/ADebug.h>
diff --git a/media/libstagefright/rtsp/SDPLoader.cpp b/media/libstagefright/rtsp/SDPLoader.cpp
index d459cbd..665d51a 100644
--- a/media/libstagefright/rtsp/SDPLoader.cpp
+++ b/media/libstagefright/rtsp/SDPLoader.cpp
@@ -24,7 +24,7 @@
 
 #include <media/MediaHTTPConnection.h>
 #include <media/MediaHTTPService.h>
-#include <media/stagefright/MediaHTTP.h>
+#include <media/stagefright/ClearMediaHTTP.h>
 #include <media/stagefright/foundation/ABuffer.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/Utils.h>
@@ -41,7 +41,7 @@
       mFlags(flags),
       mNetLooper(new ALooper),
       mCancelled(false),
-      mHTTPDataSource(new MediaHTTP(httpService->makeHTTPConnection())) {
+      mHTTPDataSource(new ClearMediaHTTP(httpService->makeHTTPConnection())) {
     mNetLooper->setName("sdp net");
     mNetLooper->start(false /* runOnCallingThread */,
                       false /* canCallJava */,
diff --git a/media/mtp/MtpServer.cpp b/media/mtp/MtpServer.cpp
index ccddd6e..cff2803 100644
--- a/media/mtp/MtpServer.cpp
+++ b/media/mtp/MtpServer.cpp
@@ -99,6 +99,7 @@
     MTP_EVENT_STORE_ADDED,
     MTP_EVENT_STORE_REMOVED,
     MTP_EVENT_DEVICE_PROP_CHANGED,
+    MTP_EVENT_OBJECT_INFO_CHANGED,
 };
 
 MtpServer::MtpServer(IMtpDatabase* database, int controlFd, bool ptp,
@@ -259,6 +260,11 @@
     sendEvent(MTP_EVENT_OBJECT_REMOVED, handle);
 }
 
+void MtpServer::sendObjectInfoChanged(MtpObjectHandle handle) {
+    ALOGV("sendObjectInfoChanged %d\n", handle);
+    sendEvent(MTP_EVENT_OBJECT_INFO_CHANGED, handle);
+}
+
 void MtpServer::sendStoreAdded(MtpStorageID id) {
     ALOGV("sendStoreAdded %08X\n", id);
     sendEvent(MTP_EVENT_STORE_ADDED, id);
diff --git a/media/mtp/MtpServer.h b/media/mtp/MtpServer.h
index f6939d7..1f8799f 100644
--- a/media/mtp/MtpServer.h
+++ b/media/mtp/MtpServer.h
@@ -115,6 +115,7 @@
 
     void                sendObjectAdded(MtpObjectHandle handle);
     void                sendObjectRemoved(MtpObjectHandle handle);
+    void                sendObjectInfoChanged(MtpObjectHandle handle);
     void                sendDevicePropertyChanged(MtpDeviceProperty property);
 
 private:
diff --git a/media/ndk/NdkMediaCodec.cpp b/media/ndk/NdkMediaCodec.cpp
index 6b20bca..42285f8 100644
--- a/media/ndk/NdkMediaCodec.cpp
+++ b/media/ndk/NdkMediaCodec.cpp
@@ -811,7 +811,13 @@
         size_t *encryptedbytes) {
 
     // size needed to store all the crypto data
-    size_t cryptosize = sizeof(AMediaCodecCryptoInfo) + sizeof(size_t) * numsubsamples * 2;
+    size_t cryptosize;
+    // = sizeof(AMediaCodecCryptoInfo) + sizeof(size_t) * numsubsamples * 2;
+    if (__builtin_mul_overflow(sizeof(size_t) * 2, numsubsamples, &cryptosize) ||
+            __builtin_add_overflow(cryptosize, sizeof(AMediaCodecCryptoInfo), &cryptosize)) {
+        ALOGE("crypto size overflow");
+        return NULL;
+    }
     AMediaCodecCryptoInfo *ret = (AMediaCodecCryptoInfo*) malloc(cryptosize);
     if (!ret) {
         ALOGE("couldn't allocate %zu bytes", cryptosize);
diff --git a/media/utils/Android.bp b/media/utils/Android.bp
index 13b66ed..f5b3f92 100644
--- a/media/utils/Android.bp
+++ b/media/utils/Android.bp
@@ -40,6 +40,12 @@
         "-Werror",
     ],
 
+    product_variables: {
+        product_is_iot: {
+            cflags: ["-DTARGET_ANDROID_THINGS"],
+        },
+    },
+
     local_include_dirs: ["include"],
     export_include_dirs: ["include"],
 }
diff --git a/media/utils/ServiceUtilities.cpp b/media/utils/ServiceUtilities.cpp
index 0d50be0..1c54aec 100644
--- a/media/utils/ServiceUtilities.cpp
+++ b/media/utils/ServiceUtilities.cpp
@@ -158,6 +158,27 @@
     return ok;
 }
 
+bool modifyDefaultAudioEffectsAllowed() {
+    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);
+
+#ifdef TARGET_ANDROID_THINGS
+    if (!ok) {
+        // Use a secondary permission on Android Things to allow a more lenient level of protection.
+        static const String16 sModifyDefaultAudioEffectsAndroidThingsAllowed(
+                "com.google.android.things.permission.MODIFY_DEFAULT_AUDIO_EFFECTS");
+        ok = PermissionCache::checkCallingPermission(
+                sModifyDefaultAudioEffectsAndroidThingsAllowed);
+    }
+    if (!ok) ALOGE("com.google.android.things.permission.MODIFY_DEFAULT_AUDIO_EFFECTS");
+#else
+    if (!ok) ALOGE("android.permission.MODIFY_DEFAULT_AUDIO_EFFECTS");
+#endif
+    return ok;
+}
+
 bool dumpAllowed() {
     static const String16 sDump("android.permission.DUMP");
     // IMPORTANT: Use PermissionCache - not a runtime permission and may not change.
diff --git a/media/utils/include/mediautils/ServiceUtilities.h b/media/utils/include/mediautils/ServiceUtilities.h
index 0911744..98f54c2 100644
--- a/media/utils/include/mediautils/ServiceUtilities.h
+++ b/media/utils/include/mediautils/ServiceUtilities.h
@@ -68,6 +68,7 @@
 bool captureHotwordAllowed(pid_t pid, uid_t uid);
 bool settingsAllowed();
 bool modifyAudioRoutingAllowed();
+bool modifyDefaultAudioEffectsAllowed();
 bool dumpAllowed();
 bool modifyPhoneStateAllowed(pid_t pid, uid_t uid);
 status_t checkIMemory(const sp<IMemory>& iMemory);
diff --git a/services/audioflinger/Android.mk b/services/audioflinger/Android.mk
index c0aa477..2c26ba4 100644
--- a/services/audioflinger/Android.mk
+++ b/services/audioflinger/Android.mk
@@ -42,6 +42,7 @@
 
 LOCAL_STATIC_LIBRARIES := \
     libcpustats \
+    libjsoncpp \
     libsndfile \
 
 LOCAL_MULTILIB := $(AUDIOSERVER_MULTILIB)
diff --git a/services/audioflinger/AudioFlinger.cpp b/services/audioflinger/AudioFlinger.cpp
index 9234364..ed2b3c0 100644
--- a/services/audioflinger/AudioFlinger.cpp
+++ b/services/audioflinger/AudioFlinger.cpp
@@ -58,13 +58,14 @@
 
 #include <audio_utils/primitives.h>
 
+#include <json/json.h>
+
 #include <powermanager/PowerManager.h>
 
 #include <media/IMediaLogService.h>
 #include <media/MemoryLeakTrackUtil.h>
 #include <media/nbaio/Pipe.h>
 #include <media/nbaio/PipeReader.h>
-#include <media/AudioParameter.h>
 #include <mediautils/BatteryNotifier.h>
 #include <mediautils/ServiceUtilities.h>
 #include <private/android_filesystem_config.h>
@@ -440,8 +441,11 @@
         const bool formatJson = std::any_of(args.begin(), args.end(),
                 [](const String16 &arg) { return arg == String16("--json"); });
         if (formatJson) {
+            Json::Value root = getJsonDump();
+            Json::FastWriter writer;
+            std::string rootStr = writer.write(root);
             // XXX consider buffering if the string happens to be too long.
-            dprintf(fd, "%s", getJsonString().c_str());
+            dprintf(fd, "%s", rootStr.c_str());
             return NO_ERROR;
         }
 
@@ -512,6 +516,15 @@
 
         mPatchPanel.dump(fd);
 
+        // dump external setParameters
+        auto dumpLogger = [fd](SimpleLog& logger, const char* name) {
+            dprintf(fd, "\n%s setParameters:\n", name);
+            logger.dump(fd, "    " /* prefix */);
+        };
+        dumpLogger(mRejectedSetParameterLog, "Rejected");
+        dumpLogger(mAppSetParameterLog, "App");
+        dumpLogger(mSystemSetParameterLog, "System");
+
         BUFLOG_RESET;
 
         if (locked) {
@@ -556,34 +569,30 @@
     return NO_ERROR;
 }
 
-std::string AudioFlinger::getJsonString()
+Json::Value AudioFlinger::getJsonDump()
 {
-    std::string jsonStr = "{\n";
+    Json::Value root(Json::objectValue);
     const bool locked = dumpTryLock(mLock);
 
     // failed to lock - AudioFlinger is probably deadlocked
     if (!locked) {
-        jsonStr += "    \"deadlock_message\": ";
-        jsonStr += kDeadlockedString;
-        jsonStr += ",\n";
+        root["deadlock_message"] = kDeadlockedString;
     }
     // FIXME risky to access data structures without a lock held?
 
-    jsonStr += "  \"Playback_Threads\": [\n";
+    Json::Value playbackThreads = Json::arrayValue;
     // dump playback threads
     for (size_t i = 0; i < mPlaybackThreads.size(); i++) {
-        if (i != 0) {
-            jsonStr += ",\n";
-        }
-        jsonStr += mPlaybackThreads.valueAt(i)->getJsonString();
+        playbackThreads.append(mPlaybackThreads.valueAt(i)->getJsonDump());
     }
-    jsonStr += "\n  ]\n}\n";
 
     if (locked) {
         mLock.unlock();
     }
 
-    return jsonStr;
+    root["playback_threads"] = playbackThreads;
+
+    return root;
 }
 
 sp<AudioFlinger::Client> AudioFlinger::registerPid(pid_t pid)
@@ -1228,16 +1237,33 @@
 
     AudioParameter param = AudioParameter(keyValuePairs);
     String8 value;
+    AudioParameter rejectedParam;
     for (auto& key : kReservedParameters) {
         if (param.get(key, value) == NO_ERROR) {
-            ALOGW("%s: filtering key %s value %s from uid %d",
-                  __func__, key.string(), value.string(), callingUid);
+            rejectedParam.add(key, value);
             param.remove(key);
         }
     }
+    logFilteredParameters(param.size() + rejectedParam.size(), keyValuePairs,
+                          rejectedParam.size(), rejectedParam.toString(), callingUid);
     keyValuePairs = param.toString();
 }
 
+void AudioFlinger::logFilteredParameters(size_t originalKVPSize, const String8& originalKVPs,
+                                         size_t rejectedKVPSize, const String8& rejectedKVPs,
+                                         uid_t callingUid) {
+    auto prefix = String8::format("UID %5d", callingUid);
+    auto suffix = String8::format("%zu KVP received: %s", originalKVPSize, originalKVPs.c_str());
+    if (rejectedKVPSize != 0) {
+        auto error = String8::format("%zu KVP rejected: %s", rejectedKVPSize, rejectedKVPs.c_str());
+        ALOGW("%s: %s, %s, %s", __func__, prefix.c_str(), error.c_str(), suffix.c_str());
+        mRejectedSetParameterLog.log("%s, %s, %s", prefix.c_str(), error.c_str(), suffix.c_str());
+    } else {
+        auto& logger = (isServiceUid(callingUid) ? mSystemSetParameterLog : mAppSetParameterLog);
+        logger.log("%s, %s", prefix.c_str(), suffix.c_str());
+    }
+}
+
 status_t AudioFlinger::setParameters(audio_io_handle_t ioHandle, const String8& keyValuePairs)
 {
     ALOGV("setParameters(): io %d, keyvalue %s, calling pid %d calling uid %d",
@@ -2949,16 +2975,74 @@
 }
 
 status_t AudioFlinger::getEffectDescriptor(const effect_uuid_t *pUuid,
-        effect_descriptor_t *descriptor) const
+                                           const effect_uuid_t *pTypeUuid,
+                                           uint32_t preferredTypeFlag,
+                                           effect_descriptor_t *descriptor) const
 {
+    if (pUuid == NULL || pTypeUuid == NULL || descriptor == NULL) {
+        return BAD_VALUE;
+    }
+
     Mutex::Autolock _l(mLock);
-    if (mEffectsFactoryHal.get()) {
-        return mEffectsFactoryHal->getDescriptor(pUuid, descriptor);
-    } else {
+
+    if (!mEffectsFactoryHal.get()) {
         return -ENODEV;
     }
-}
 
+    status_t status = NO_ERROR;
+    if (!EffectsFactoryHalInterface::isNullUuid(pUuid)) {
+        // If uuid is specified, request effect descriptor from that.
+        status = mEffectsFactoryHal->getDescriptor(pUuid, descriptor);
+    } else if (!EffectsFactoryHalInterface::isNullUuid(pTypeUuid)) {
+        // If uuid is not specified, look for an available implementation
+        // of the required type instead.
+
+        // Use a temporary descriptor to avoid modifying |descriptor| in the failure case.
+        effect_descriptor_t desc;
+        desc.flags = 0; // prevent compiler warning
+
+        uint32_t numEffects = 0;
+        status = mEffectsFactoryHal->queryNumberEffects(&numEffects);
+        if (status < 0) {
+            ALOGW("getEffectDescriptor() error %d from FactoryHal queryNumberEffects", status);
+            return status;
+        }
+
+        bool found = false;
+        for (uint32_t i = 0; i < numEffects; i++) {
+            status = mEffectsFactoryHal->getDescriptor(i, &desc);
+            if (status < 0) {
+                ALOGW("getEffectDescriptor() error %d from FactoryHal getDescriptor", status);
+                continue;
+            }
+            if (memcmp(&desc.type, pTypeUuid, sizeof(effect_uuid_t)) == 0) {
+                // If matching type found save effect descriptor.
+                found = true;
+                *descriptor = desc;
+
+                // If there's no preferred flag or this descriptor matches the preferred
+                // flag, success! If this descriptor doesn't match the preferred
+                // flag, continue enumeration in case a better matching version of this
+                // effect type is available. Note that this means if no effect with a
+                // correct flag is found, the descriptor returned will correspond to the
+                // last effect that at least had a matching type uuid (if any).
+                if (preferredTypeFlag == EFFECT_FLAG_TYPE_MASK ||
+                    (desc.flags & EFFECT_FLAG_TYPE_MASK) == preferredTypeFlag) {
+                    break;
+                }
+            }
+        }
+
+        if (!found) {
+            status = NAME_NOT_FOUND;
+            ALOGW("getEffectDescriptor(): Effect not found by type.");
+        }
+    } else {
+        status = BAD_VALUE;
+        ALOGE("getEffectDescriptor(): Either uuid or type uuid must be non-null UUIDs.");
+    }
+    return status;
+}
 
 sp<IEffect> AudioFlinger::createEffect(
         effect_descriptor_t *pDesc,
@@ -3012,60 +3096,15 @@
     }
 
     {
-        if (!EffectsFactoryHalInterface::isNullUuid(&pDesc->uuid)) {
-            // if uuid is specified, request effect descriptor
-            lStatus = mEffectsFactoryHal->getDescriptor(&pDesc->uuid, &desc);
-            if (lStatus < 0) {
-                ALOGW("createEffect() error %d from EffectGetDescriptor", lStatus);
-                goto Exit;
-            }
-        } else {
-            // if uuid is not specified, look for an available implementation
-            // of the required type in effect factory
-            if (EffectsFactoryHalInterface::isNullUuid(&pDesc->type)) {
-                ALOGW("createEffect() no effect type");
-                lStatus = BAD_VALUE;
-                goto Exit;
-            }
-            uint32_t numEffects = 0;
-            effect_descriptor_t d;
-            d.flags = 0; // prevent compiler warning
-            bool found = false;
-
-            lStatus = mEffectsFactoryHal->queryNumberEffects(&numEffects);
-            if (lStatus < 0) {
-                ALOGW("createEffect() error %d from EffectQueryNumberEffects", lStatus);
-                goto Exit;
-            }
-            for (uint32_t i = 0; i < numEffects; i++) {
-                lStatus = mEffectsFactoryHal->getDescriptor(i, &desc);
-                if (lStatus < 0) {
-                    ALOGW("createEffect() error %d from EffectQueryEffect", lStatus);
-                    continue;
-                }
-                if (memcmp(&desc.type, &pDesc->type, sizeof(effect_uuid_t)) == 0) {
-                    // If matching type found save effect descriptor. If the session is
-                    // 0 and the effect is not auxiliary, continue enumeration in case
-                    // an auxiliary version of this effect type is available
-                    found = true;
-                    d = desc;
-                    if (sessionId != AUDIO_SESSION_OUTPUT_MIX ||
-                            (desc.flags & EFFECT_FLAG_TYPE_MASK) == EFFECT_FLAG_TYPE_AUXILIARY) {
-                        break;
-                    }
-                }
-            }
-            if (!found) {
-                lStatus = BAD_VALUE;
-                ALOGW("createEffect() effect not found");
-                goto Exit;
-            }
-            // For same effect type, chose auxiliary version over insert version if
-            // connect to output mix (Compliance to OpenSL ES)
-            if (sessionId == AUDIO_SESSION_OUTPUT_MIX &&
-                    (d.flags & EFFECT_FLAG_TYPE_MASK) != EFFECT_FLAG_TYPE_AUXILIARY) {
-                desc = d;
-            }
+        // Get the full effect descriptor from the uuid/type.
+        // If the session is the output mix, prefer an auxiliary effect,
+        // otherwise no preference.
+        uint32_t preferredType = (sessionId == AUDIO_SESSION_OUTPUT_MIX ?
+                                  EFFECT_FLAG_TYPE_AUXILIARY : EFFECT_FLAG_TYPE_MASK);
+        lStatus = getEffectDescriptor(&pDesc->uuid, &pDesc->type, preferredType, &desc);
+        if (lStatus < 0) {
+            ALOGW("createEffect() error %d from getEffectDescriptor", lStatus);
+            goto Exit;
         }
 
         // Do not allow auxiliary effects on a session different from 0 (output mix)
diff --git a/services/audioflinger/AudioFlinger.h b/services/audioflinger/AudioFlinger.h
index 95b947c..9c36479 100644
--- a/services/audioflinger/AudioFlinger.h
+++ b/services/audioflinger/AudioFlinger.h
@@ -24,6 +24,7 @@
 #include <deque>
 #include <map>
 #include <memory>
+#include <set>
 #include <string>
 #include <vector>
 #include <stdint.h>
@@ -79,6 +80,7 @@
 
 #include <powermanager/IPowerManager.h>
 
+#include <json/json.h>
 #include <media/nblog/NBLog.h>
 #include <private/media/AudioEffectShared.h>
 #include <private/media/AudioTrackShared.h>
@@ -114,7 +116,7 @@
     static const char* getServiceName() ANDROID_API { return "media.audio_flinger"; }
 
     virtual     status_t    dump(int fd, const Vector<String16>& args);
-                std::string getJsonString();
+                Json::Value getJsonDump();
 
     // IAudioFlinger interface, in binder opcode order
     virtual sp<IAudioTrack> createTrack(const CreateTrackInput& input,
@@ -208,6 +210,8 @@
     virtual status_t queryEffect(uint32_t index, effect_descriptor_t *descriptor) const;
 
     virtual status_t getEffectDescriptor(const effect_uuid_t *pUuid,
+                                         const effect_uuid_t *pTypeUuid,
+                                         uint32_t preferredTypeFlag,
                                          effect_descriptor_t *descriptor) const;
 
     virtual sp<IEffect> createEffect(
@@ -808,6 +812,9 @@
     status_t    checkStreamType(audio_stream_type_t stream) const;
 
     void        filterReservedParameters(String8& keyValuePairs, uid_t callingUid);
+    void        logFilteredParameters(size_t originalKVPSize, const String8& originalKVPs,
+                                      size_t rejectedKVPSize, const String8& rejectedKVPs,
+                                      uid_t callingUid);
 
 public:
     // These methods read variables atomically without mLock,
@@ -828,7 +835,11 @@
     PatchPanel mPatchPanel;
     sp<EffectsFactoryHalInterface> mEffectsFactoryHal;
 
-    bool        mSystemReady;
+    bool       mSystemReady;
+
+    SimpleLog  mRejectedSetParameterLog;
+    SimpleLog  mAppSetParameterLog;
+    SimpleLog  mSystemSetParameterLog;
 };
 
 #undef INCLUDING_FROM_AUDIOFLINGER_H
diff --git a/services/audioflinger/Effects.cpp b/services/audioflinger/Effects.cpp
index 786c4af..c4c742e 100644
--- a/services/audioflinger/Effects.cpp
+++ b/services/audioflinger/Effects.cpp
@@ -50,6 +50,8 @@
 #define ALOGVV(a...) do { } while(0)
 #endif
 
+#define DEFAULT_OUTPUT_SAMPLE_RATE 48000
+
 namespace android {
 
 // ----------------------------------------------------------------------------
@@ -263,7 +265,9 @@
         }
         break;
     case STOPPING:
-        if (stop_l() == NO_ERROR) {
+        // volume control for offload and direct threads must take effect immediately.
+        if (stop_l() == NO_ERROR
+            && !(isVolumeControl() && isOffloadedOrDirect())) {
             mDisableWaitCnt = mMaxDisableWaitCnt;
         } else {
             mDisableWaitCnt = 1; // will cause immediate transition to IDLE
@@ -547,7 +551,14 @@
 
     mConfig.inputCfg.format = EFFECT_BUFFER_FORMAT;
     mConfig.outputCfg.format = EFFECT_BUFFER_FORMAT;
-    mConfig.inputCfg.samplingRate = thread->sampleRate();
+
+    // Don't use sample rate for thread if effect isn't offloadable.
+    if ((thread->type() == ThreadBase::OFFLOAD) && !isOffloaded()) {
+        mConfig.inputCfg.samplingRate = DEFAULT_OUTPUT_SAMPLE_RATE;
+        ALOGV("Overriding effect input as 48kHz");
+    } else {
+        mConfig.inputCfg.samplingRate = thread->sampleRate();
+    }
     mConfig.outputCfg.samplingRate = mConfig.inputCfg.samplingRate;
     mConfig.inputCfg.bufferProvider.cookie = NULL;
     mConfig.inputCfg.bufferProvider.getBuffer = NULL;
@@ -778,6 +789,16 @@
     }
     status_t cmdStatus = NO_ERROR;
     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();
+        mSetVolumeReentrantTid = INVALID_PID;
+    }
+
     status_t status = mEffectInterface->command(EFFECT_CMD_DISABLE,
                                                 0,
                                                 NULL,
@@ -993,6 +1014,16 @@
     }
 }
 
+bool AudioFlinger::EffectModule::isOffloadedOrDirect() const
+{
+    return (mThreadType == ThreadBase::OFFLOAD || mThreadType == ThreadBase::DIRECT);
+}
+
+bool AudioFlinger::EffectModule::isVolumeControlEnabled() const
+{
+    return (isVolumeControl() && (isOffloadedOrDirect() ? isEnabled() : isProcessEnabled()));
+}
+
 void AudioFlinger::EffectModule::setInBuffer(const sp<EffectBufferHalInterface>& buffer) {
     ALOGVV("setInBuffer %p",(&buffer));
 
@@ -1091,7 +1122,7 @@
 
 status_t AudioFlinger::EffectModule::setVolume(uint32_t *left, uint32_t *right, bool controller)
 {
-    Mutex::Autolock _l(mLock);
+    AutoLockReentrant _l(mLock, mSetVolumeReentrantTid);
     if (mStatus != NO_ERROR) {
         return mStatus;
     }
@@ -1122,6 +1153,18 @@
     return status;
 }
 
+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)) {
+        PlaybackThread *t = (PlaybackThread *)thread.get();
+        float vol_l = (float)left / (1 << 24);
+        float vol_r = (float)right / (1 << 24);
+        t->setVolumeForOutput_l(vol_l, vol_r);
+    }
+}
+
 status_t AudioFlinger::EffectModule::setDevice(audio_devices_t device)
 {
     if (device == AUDIO_DEVICE_NONE) {
@@ -2200,8 +2243,7 @@
 
     // first update volume controller
     for (size_t i = size; i > 0; i--) {
-        if (mEffects[i - 1]->isProcessEnabled() &&
-            (mEffects[i - 1]->desc().flags & EFFECT_FLAG_VOLUME_MASK) == EFFECT_FLAG_VOLUME_CTRL) {
+        if (mEffects[i - 1]->isVolumeControlEnabled()) {
             ctrlIdx = i - 1;
             hasControl = true;
             break;
@@ -2247,6 +2289,8 @@
     *left = newLeft;
     *right = newRight;
 
+    setVolumeForOutput_l(*left, *right);
+
     return hasControl;
 }
 
diff --git a/services/audioflinger/Effects.h b/services/audioflinger/Effects.h
index 2327bb9..e04ee8e 100644
--- a/services/audioflinger/Effects.h
+++ b/services/audioflinger/Effects.h
@@ -85,6 +85,8 @@
     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 {
@@ -95,7 +97,8 @@
         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; }
+    void        setThread(const wp<ThreadBase>& thread)
+                    { mThread = thread; mThreadType = thread.promote()->type(); }
     const wp<ThreadBase>& thread() { return mThread; }
 
     status_t addHandle(EffectHandle *handle);
@@ -128,6 +131,9 @@
                         { return (mDescriptor.flags & EFFECT_FLAG_HW_ACC_MASK) == 0; }
     bool             isProcessImplemented() const
                         { return (mDescriptor.flags & EFFECT_FLAG_NO_PROCESS) == 0; }
+    bool             isVolumeControl() const
+                        { return (mDescriptor.flags & EFFECT_FLAG_VOLUME_MASK)
+                            == EFFECT_FLAG_VOLUME_CTRL; }
     status_t         setOffloaded(bool offloaded, audio_io_handle_t io);
     bool             isOffloaded() const;
     void             addEffectToHal_l();
@@ -150,6 +156,7 @@
 
 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
@@ -176,6 +183,24 @@
     uint32_t mInChannelCountRequested;
     uint32_t mOutChannelCountRequested;
 #endif
+
+    class AutoLockReentrant {
+    public:
+        AutoLockReentrant(Mutex& mutex, pid_t allowedTid)
+            : mMutex(gettid() == allowedTid ? nullptr : &mutex)
+        {
+            if (mMutex != nullptr) mMutex->lock();
+        }
+        ~AutoLockReentrant() {
+            if (mMutex != nullptr) mMutex->unlock();
+        }
+    private:
+        Mutex * const mMutex;
+    };
+
+    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;
 };
 
 // The EffectHandle class implements the IEffect interface. It provides resources
@@ -403,6 +428,8 @@
 
     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
diff --git a/services/audioflinger/FastCapture.cpp b/services/audioflinger/FastCapture.cpp
index d063772..dd84bf2 100644
--- a/services/audioflinger/FastCapture.cpp
+++ b/services/audioflinger/FastCapture.cpp
@@ -20,6 +20,7 @@
 #define ATRACE_TAG ATRACE_TAG_AUDIO
 
 #include "Configuration.h"
+#include <audio_utils/format.h>
 #include <linux/futex.h>
 #include <sys/syscall.h>
 #include <media/AudioBufferProvider.h>
@@ -161,7 +162,21 @@
     const FastCaptureState * const current = (const FastCaptureState *) mCurrent;
     FastCaptureDumpState * const dumpState = (FastCaptureDumpState *) mDumpState;
     const FastCaptureState::Command command = mCommand;
-    const size_t frameCount = current->mFrameCount;
+    size_t frameCount = current->mFrameCount;
+    AudioBufferProvider* fastPatchRecordBufferProvider = current->mFastPatchRecordBufferProvider;
+    AudioBufferProvider::Buffer patchBuffer;
+
+    if (fastPatchRecordBufferProvider != 0) {
+        patchBuffer.frameCount = ~0;
+        status_t status = fastPatchRecordBufferProvider->getNextBuffer(&patchBuffer);
+        if (status != NO_ERROR) {
+            frameCount = 0;
+        } else if (patchBuffer.frameCount < frameCount) {
+            // TODO: Make sure that it doesn't cause any issues if we just get a small available
+            // buffer from the buffer provider.
+            frameCount = patchBuffer.frameCount;
+        }
+    }
 
     if ((command & FastCaptureState::READ) /*&& isWarm*/) {
         ALOG_ASSERT(mInputSource != NULL);
@@ -176,6 +191,7 @@
             mTotalNativeFramesRead += framesRead;
             dumpState->mFramesRead = mTotalNativeFramesRead;
             mReadBufferState = framesRead;
+            patchBuffer.frameCount = framesRead;
         } else {
             dumpState->mReadErrors++;
             mReadBufferState = 0;
@@ -193,11 +209,18 @@
         }
         if (mReadBufferState > 0) {
             ssize_t framesWritten = mPipeSink->write(mReadBuffer, mReadBufferState);
-            // FIXME This supports at most one fast capture client.
-            //       To handle multiple clients this could be converted to an array,
-            //       or with a lot more work the control block could be shared by all clients.
             audio_track_cblk_t* cblk = current->mCblk;
-            if (cblk != NULL && framesWritten > 0) {
+            if (fastPatchRecordBufferProvider != 0) {
+                // This indicates the fast track is a patch record, update the cblk by
+                // calling releaseBuffer().
+                memcpy_by_audio_format(patchBuffer.raw, current->mFastPatchRecordFormat,
+                        mReadBuffer, mFormat.mFormat, framesWritten * mFormat.mChannelCount);
+                patchBuffer.frameCount = framesWritten;
+                fastPatchRecordBufferProvider->releaseBuffer(&patchBuffer);
+            } else if (cblk != NULL && framesWritten > 0) {
+                // FIXME This supports at most one fast capture client.
+                //       To handle multiple clients this could be converted to an array,
+                //       or with a lot more work the control block could be shared by all clients.
                 int32_t rear = cblk->u.mStreaming.mRear;
                 android_atomic_release_store(framesWritten + rear, &cblk->u.mStreaming.mRear);
                 cblk->mServer += framesWritten;
diff --git a/services/audioflinger/FastCaptureState.h b/services/audioflinger/FastCaptureState.h
index 9bca2d4..d287232 100644
--- a/services/audioflinger/FastCaptureState.h
+++ b/services/audioflinger/FastCaptureState.h
@@ -18,6 +18,7 @@
 #define ANDROID_AUDIO_FAST_CAPTURE_STATE_H
 
 #include <media/nbaio/NBAIO.h>
+#include <media/AudioBufferProvider.h>
 #include "FastThreadState.h"
 #include <private/media/AudioTrackShared.h>
 
@@ -37,6 +38,10 @@
     size_t          mFrameCount;        // number of frames per fast capture buffer
     audio_track_cblk_t* mCblk;          // control block for the single fast client, or NULL
 
+    audio_format_t  mFastPatchRecordFormat = AUDIO_FORMAT_INVALID;
+    AudioBufferProvider* mFastPatchRecordBufferProvider = nullptr;   // a reference to a patch
+                                                                     // record in fast mode
+
     // Extends FastThreadState::Command
     static const Command
         // The following commands also process configuration changes, and can be "or"ed:
diff --git a/services/audioflinger/FastMixerDumpState.cpp b/services/audioflinger/FastMixerDumpState.cpp
index ffdc117..2abfbfb 100644
--- a/services/audioflinger/FastMixerDumpState.cpp
+++ b/services/audioflinger/FastMixerDumpState.cpp
@@ -24,6 +24,7 @@
 #include <cpustats/ThreadCpuUsage.h>
 #endif
 #endif
+#include <json/json.h>
 #include <string>
 #include <utils/Debug.h>
 #include <utils/Log.h>
@@ -92,9 +93,9 @@
     }
     // statistics for monotonic (wall clock) time, thread raw CPU load in time, CPU clock frequency,
     // and adjusted CPU load in MHz normalized for CPU clock frequency
-    Statistics<double> wall, loadNs;
+    audio_utils::Statistics<double> wall, loadNs;
 #ifdef CPU_FREQUENCY_STATISTICS
-    Statistics<double> kHz, loadMHz;
+    audio_utils::Statistics<double> kHz, loadMHz;
     uint32_t previousCpukHz = 0;
 #endif
     // Assuming a normal distribution for cycle times, three standard deviations on either side of
@@ -152,7 +153,7 @@
         qsort(tail, n, sizeof(uint32_t), compare_uint32_t);
         // assume same number of tail samples on each side, left and right
         uint32_t count = n / kTailDenominator;
-        Statistics<double> left, right;
+        audio_utils::Statistics<double> left, right;
         for (uint32_t i = 0; i < count; ++i) {
             left.add(tail[i]);
             right.add(tail[n - (i + 1)]);
@@ -205,14 +206,13 @@
     }
 }
 
-// TODO get rid of extraneous lines and use better key names.
-// TODO may go back to using a library to do the json formatting.
-std::string FastMixerDumpState::getJsonString() const
+Json::Value FastMixerDumpState::getJsonDump() const
 {
+    Json::Value root(Json::objectValue);
     if (mCommand == FastMixerState::INITIAL) {
-        return "    {\n      \"status\": \"uninitialized\"\n    }";
+        root["status"] = "uninitialized";
+        return root;
     }
-    std::string jsonStr = "    {\n";
 #ifdef FAST_THREAD_STATISTICS
     // find the interval of valid samples
     const uint32_t bounds = mBounds;
@@ -230,31 +230,25 @@
     }
     // statistics for monotonic (wall clock) time, thread raw CPU load in time, CPU clock frequency,
     // and adjusted CPU load in MHz normalized for CPU clock frequency
-    std::string jsonWallStr = "      \"wall_clock_time\":[";
-    std::string jsonLoadNsStr = "      \"raw_cpu_load\":[";
+    Json::Value jsonWall(Json::arrayValue);
+    Json::Value jsonLoadNs(Json::arrayValue);
     // loop over all the samples
     for (uint32_t j = 0; j < n; ++j) {
         size_t i = oldestClosed++ & (mSamplingN - 1);
         uint32_t wallNs = mMonotonicNs[i];
-        if (j != 0) {
-            jsonWallStr += ',';
-            jsonLoadNsStr += ',';
-        }
-        /* jsonObject["wall"].append(wallNs); */
-        jsonWallStr += std::to_string(wallNs);
+        jsonWall.append(wallNs);
         uint32_t sampleLoadNs = mLoadNs[i];
-        jsonLoadNsStr += std::to_string(sampleLoadNs);
+        jsonLoadNs.append(sampleLoadNs);
     }
-    jsonWallStr += ']';
-    jsonLoadNsStr += ']';
     if (n) {
-        jsonStr += jsonWallStr + ",\n" + jsonLoadNsStr + "\n";
+        root["wall_clock_time_ns"] = jsonWall;
+        root["raw_cpu_load_ns"] = jsonLoadNs;
+        root["status"] = "ok";
     } else {
-        //dprintf(fd, "  No FastMixer statistics available currently\n");
+        root["status"] = "unavailable";
     }
 #endif
-    jsonStr += "    }";
-    return jsonStr;
+    return root;
 }
 
 }   // android
diff --git a/services/audioflinger/FastMixerDumpState.h b/services/audioflinger/FastMixerDumpState.h
index 81c4175..69c2e4e 100644
--- a/services/audioflinger/FastMixerDumpState.h
+++ b/services/audioflinger/FastMixerDumpState.h
@@ -20,6 +20,7 @@
 #include <stdint.h>
 #include <string>
 #include <audio_utils/TimestampVerifier.h>
+#include <json/json.h>
 #include "Configuration.h"
 #include "FastThreadDumpState.h"
 #include "FastMixerState.h"
@@ -67,7 +68,7 @@
     /*virtual*/ ~FastMixerDumpState();
 
     void dump(int fd) const;             // should only be called on a stable copy, not the original
-    std::string getJsonString() const;   // should only be called on a stable copy, not the original
+    Json::Value getJsonDump() const;     // should only be called on a stable copy, not the original
 
     double   mLatencyMs = 0.;   // measured latency, default of 0 if no valid timestamp read.
     uint32_t mWriteSequence;    // incremented before and after each write()
diff --git a/services/audioflinger/FastThread.cpp b/services/audioflinger/FastThread.cpp
index dc15487..e587026 100644
--- a/services/audioflinger/FastThread.cpp
+++ b/services/audioflinger/FastThread.cpp
@@ -339,6 +339,7 @@
                     // these stores #1, #2, #3 are not atomic with respect to each other,
                     // or with respect to store #4 below
                     mDumpState->mMonotonicNs[i] = monotonicNs;
+                    LOG_MONOTONIC_CYCLE_TIME(monotonicNs);
                     mDumpState->mLoadNs[i] = loadNs;
 #ifdef CPU_FREQUENCY_STATISTICS
                     mDumpState->mCpukHz[i] = kHz;
diff --git a/services/audioflinger/PatchPanel.cpp b/services/audioflinger/PatchPanel.cpp
index f044fb7..7b165a1 100644
--- a/services/audioflinger/PatchPanel.cpp
+++ b/services/audioflinger/PatchPanel.cpp
@@ -431,14 +431,14 @@
     // 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);
+    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);
+    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();
@@ -455,6 +455,17 @@
     }
     audio_input_flags_t inputFlags = mAudioPatch.sources[0].config_mask & AUDIO_PORT_CONFIG_FLAGS ?
             mAudioPatch.sources[0].flags.input : AUDIO_INPUT_FLAG_NONE;
+    if (sampleRate == mRecord.thread()->sampleRate() &&
+            inChannelMask == mRecord.thread()->channelMask() &&
+            mRecord.thread()->fastTrackAvailable() &&
+            mRecord.thread()->hasFastCapture()) {
+        // Create a fast track if the record thread has fast capture to get better performance.
+        // Only enable fast mode when there is no resample needed.
+        inputFlags = (audio_input_flags_t) (inputFlags | AUDIO_INPUT_FLAG_FAST);
+    } else {
+        // Fast mode is not available in this case.
+        inputFlags = (audio_input_flags_t) (inputFlags & ~AUDIO_INPUT_FLAG_FAST);
+    }
     sp<RecordThread::PatchRecord> tempRecordTrack = new (std::nothrow) RecordThread::PatchRecord(
                                              mRecord.thread().get(),
                                              sampleRate,
@@ -476,6 +487,11 @@
         // "reuse one existing output mix" case
         streamType = mAudioPatch.sources[1].ext.mix.usecase.stream;
     }
+    if (mPlayback.thread()->hasFastMixer()) {
+        // Create a fast track if the playback thread has fast mixer to get better performance.
+        outputFlags = (audio_output_flags_t) (outputFlags | AUDIO_OUTPUT_FLAG_FAST);
+    }
+
     // create a special playback track to render to playback thread.
     // this track is given the same buffer as the PatchRecord buffer
     sp<PlaybackThread::PatchTrack> tempPatchTrack = new (std::nothrow) PlaybackThread::PatchTrack(
@@ -531,14 +547,46 @@
     // reverse due to internal biases).
     //
     // TODO: is this stable enough? Consider a PatchTrack synchronized version of this.
-    double recordServerLatencyMs;
-    if (recordTrack->getServerLatencyMs(&recordServerLatencyMs) != OK) return INVALID_OPERATION;
 
-    double playbackTrackLatencyMs;
-    if (playbackTrack->getTrackLatencyMs(&playbackTrackLatencyMs) != OK) return INVALID_OPERATION;
+    // For PCM tracks get server latency.
+    if (audio_is_linear_pcm(recordTrack->format())) {
+        double recordServerLatencyMs, playbackTrackLatencyMs;
+        if (recordTrack->getServerLatencyMs(&recordServerLatencyMs) == OK
+                && playbackTrack->getTrackLatencyMs(&playbackTrackLatencyMs) == OK) {
+            *latencyMs = recordServerLatencyMs + playbackTrackLatencyMs;
+            return OK;
+        }
+    }
 
-    *latencyMs = recordServerLatencyMs + playbackTrackLatencyMs;
-    return OK;
+    // See if kernel latencies are available.
+    // If so, do a frame diff and time difference computation to estimate
+    // the total patch latency. This requires that frame counts are reported by the
+    // HAL are matched properly in the case of record overruns and playback underruns.
+    ThreadBase::TrackBase::FrameTime recordFT{}, playFT{};
+    recordTrack->getKernelFrameTime(&recordFT);
+    playbackTrack->getKernelFrameTime(&playFT);
+    if (recordFT.timeNs > 0 && playFT.timeNs > 0) {
+        const int64_t frameDiff = recordFT.frames - playFT.frames;
+        const int64_t timeDiffNs = recordFT.timeNs - playFT.timeNs;
+
+        // It is possible that the patch track and patch record have a large time disparity because
+        // one thread runs but another is stopped.  We arbitrarily choose the maximum timestamp
+        // time difference based on how often we expect the timestamps to update in normal operation
+        // (typical should be no more than 50 ms).
+        //
+        // If the timestamps aren't sampled close enough, the patch latency is not
+        // considered valid.
+        //
+        // TODO: change this based on more experiments.
+        constexpr int64_t maxValidTimeDiffNs = 200 * NANOS_PER_MILLISECOND;
+        if (std::abs(timeDiffNs) < maxValidTimeDiffNs) {
+            *latencyMs = frameDiff * 1e3 / recordTrack->sampleRate()
+                   - timeDiffNs * 1e-6;
+            return OK;
+        }
+    }
+
+    return INVALID_OPERATION;
 }
 
 String8 AudioFlinger::PatchPanel::Patch::dump(audio_patch_handle_t myHandle) const
diff --git a/services/audioflinger/PatchPanel.h b/services/audioflinger/PatchPanel.h
index 269a398..2d9bd8e 100644
--- a/services/audioflinger/PatchPanel.h
+++ b/services/audioflinger/PatchPanel.h
@@ -35,6 +35,7 @@
 
         // Must be called under AudioFlinger::mLock
         status_t getLatencyMs_l(double *latencyMs) const;
+        audio_patch_handle_t getPatchHandle() const { return mPatchHandle; };
         audio_io_handle_t getPlaybackThreadHandle() const { return mPlaybackThreadHandle; };
         audio_io_handle_t getRecordThreadHandle() const { return mRecordThreadHandle; };
       private:
diff --git a/services/audioflinger/Threads.cpp b/services/audioflinger/Threads.cpp
index 6c7179e..b5f61e7 100644
--- a/services/audioflinger/Threads.cpp
+++ b/services/audioflinger/Threads.cpp
@@ -42,6 +42,7 @@
 #include <audio_utils/primitives.h>
 #include <audio_utils/format.h>
 #include <audio_utils/minifloat.h>
+#include <json/json.h>
 #include <system/audio_effects/effect_ns.h>
 #include <system/audio_effects/effect_aec.h>
 #include <system/audio.h>
@@ -335,9 +336,9 @@
 #ifdef DEBUG_CPU_USAGE
 private:
     ThreadCpuUsage mCpuUsage;           // instantaneous thread CPU usage in wall clock ns
-    Statistics<double> mWcStats;        // statistics on thread CPU usage in wall clock ns
+    audio_utils::Statistics<double> mWcStats; // statistics on thread CPU usage in wall clock ns
 
-    Statistics<double> mHzStats;        // statistics on thread CPU usage in cycles
+    audio_utils::Statistics<double> mHzStats; // statistics on thread CPU usage in cycles
 
     int mCpuNum;                        // thread's current CPU number
     int mCpukHz;                        // frequency of thread's current CPU in kHz
@@ -862,6 +863,7 @@
             || mType == DIRECT
             || mType == OFFLOAD) {
         dprintf(fd, "  Timestamp stats: %s\n", mTimestampVerifier.toString().c_str());
+        dprintf(fd, "  Timestamp corrected: %s\n", isTimestampCorrectionEnabled() ? "yes" : "no");
     }
 
     if (locked) {
@@ -1731,10 +1733,21 @@
         if (mOutput->audioHwDev->canSetMasterMute()) {
             mMasterMute = false;
         }
+        mIsMsdDevice = strcmp(
+                mOutput->audioHwDev->moduleName(), AUDIO_HARDWARE_MODULE_ID_MSD) == 0;
     }
 
     readOutputParameters_l();
 
+    // 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) {
+        mTimestampCorrectedDevices = (audio_devices_t)property_get_int64(
+                "audio.timestamp.corrected_output_devices",
+                (int64_t)(mIsMsdDevice ? AUDIO_DEVICE_OUT_BUS // turn on by default for MSD
+                                       : AUDIO_DEVICE_NONE));
+    }
+
     // ++ operator does not compile
     for (audio_stream_type_t stream = AUDIO_STREAM_MIN; stream < AUDIO_STREAM_FOR_POLICY_CNT;
             stream = (audio_stream_type_t) (stream + 1)) {
@@ -1763,9 +1776,9 @@
     mLocalLog.dump(fd, "   " /* prefix */, 40 /* lines */);
 }
 
-std::string AudioFlinger::PlaybackThread::getJsonString() const
+Json::Value AudioFlinger::PlaybackThread::getJsonDump() const
 {
-    return "{}";
+    return Json::Value(Json::objectValue);
 }
 
 void AudioFlinger::PlaybackThread::dumpTracks(int fd, const Vector<String16>& args __unused)
@@ -2319,6 +2332,11 @@
     return mStreamTypes[stream].volume;
 }
 
+void AudioFlinger::PlaybackThread::setVolumeForOutput_l(float left, float right) const
+{
+    mOutput->stream->setVolume(left, right);
+}
+
 // addTrack_l() must be called with ThreadBase::mLock held
 status_t AudioFlinger::PlaybackThread::addTrack_l(const sp<Track>& track)
 {
@@ -3207,6 +3225,8 @@
     if (mType == OFFLOAD || mType == DIRECT) {
         mTimestampVerifier.setDiscontinuityMode(mTimestampVerifier.DISCONTINUITY_MODE_ZERO);
     }
+    audio_utils::Statistics<double> downstreamLatencyStatMs(0.999 /* alpha */);
+    audio_patch_handle_t lastDownstreamPatchHandle = AUDIO_PATCH_HANDLE_NONE;
 
     while (!exitPending())
     {
@@ -3218,6 +3238,46 @@
 
         Vector< sp<EffectChain> > effectChains;
 
+        // If the device is AUDIO_DEVICE_OUT_BUS, check for downstream latency.
+        //
+        // Note: we access outDevice() outside of mLock.
+        if (isMsdDevice() && (outDevice() & AUDIO_DEVICE_OUT_BUS) != 0) {
+            // Here, we try for the AF lock, but do not block on it as the latency
+            // is more informational.
+            if (mAudioFlinger->mLock.tryLock() == NO_ERROR) {
+                std::vector<PatchPanel::SoftwarePatch> swPatches;
+                double latencyMs;
+                status_t status = INVALID_OPERATION;
+                audio_patch_handle_t downstreamPatchHandle = AUDIO_PATCH_HANDLE_NONE;
+                if (mAudioFlinger->mPatchPanel.getDownstreamSoftwarePatches(id(), &swPatches) == OK
+                        && swPatches.size() > 0) {
+                        status = swPatches[0].getLatencyMs_l(&latencyMs);
+                        downstreamPatchHandle = swPatches[0].getPatchHandle();
+                }
+                if (downstreamPatchHandle != lastDownstreamPatchHandle) {
+                    downstreamLatencyStatMs.reset();
+                    lastDownstreamPatchHandle = downstreamPatchHandle;
+                }
+                if (status == OK) {
+                    // verify downstream latency (we assume a max reasonable
+                    // latency of 1 second).
+                    if (latencyMs >= 0. && latencyMs <= 1000.) {
+                        ALOGV("new downstream latency %lf ms", latencyMs);
+                        downstreamLatencyStatMs.add(latencyMs);
+                    } else {
+                        ALOGD("out of range downstream latency %lf ms", latencyMs);
+                    }
+                }
+                mAudioFlinger->mLock.unlock();
+            }
+        } else {
+            if (lastDownstreamPatchHandle != AUDIO_PATCH_HANDLE_NONE) {
+                // our device is no longer AUDIO_DEVICE_OUT_BUS, reset patch handle and stats.
+                downstreamLatencyStatMs.reset();
+                lastDownstreamPatchHandle = AUDIO_PATCH_HANDLE_NONE;
+            }
+        }
+
         { // scope for mLock
 
             Mutex::Autolock _l(mLock);
@@ -3247,6 +3307,33 @@
                 mTimestampVerifier.add(timestamp.mPosition[ExtendedTimestamp::LOCATION_KERNEL],
                         timestamp.mTimeNs[ExtendedTimestamp::LOCATION_KERNEL],
                         mSampleRate);
+
+                if (isTimestampCorrectionEnabled()) {
+                    ALOGV("TS_BEFORE: %d %lld %lld", id(),
+                            (long long)timestamp.mTimeNs[ExtendedTimestamp::LOCATION_KERNEL],
+                            (long long)timestamp.mPosition[ExtendedTimestamp::LOCATION_KERNEL]);
+                    auto correctedTimestamp = mTimestampVerifier.getLastCorrectedTimestamp();
+                    timestamp.mPosition[ExtendedTimestamp::LOCATION_KERNEL]
+                            = correctedTimestamp.mFrames;
+                    timestamp.mTimeNs[ExtendedTimestamp::LOCATION_KERNEL]
+                            = correctedTimestamp.mTimeNs;
+                    ALOGV("TS_AFTER: %d %lld %lld", id(),
+                            (long long)timestamp.mTimeNs[ExtendedTimestamp::LOCATION_KERNEL],
+                            (long long)timestamp.mPosition[ExtendedTimestamp::LOCATION_KERNEL]);
+
+                    // Note: Downstream latency only added if timestamp correction enabled.
+                    if (downstreamLatencyStatMs.getN() > 0) { // we have latency info.
+                        const int64_t newPosition =
+                                timestamp.mPosition[ExtendedTimestamp::LOCATION_KERNEL]
+                                - int64_t(downstreamLatencyStatMs.getMean() * mSampleRate * 1e-3);
+                        // prevent retrograde
+                        timestamp.mPosition[ExtendedTimestamp::LOCATION_KERNEL] = max(
+                                newPosition,
+                                (mTimestamp.mPosition[ExtendedTimestamp::LOCATION_KERNEL]
+                                        - mSuspendedFrames));
+                    }
+                }
+
                 // We always fetch the timestamp here because often the downstream
                 // sink will block while writing.
 
@@ -5141,14 +5228,20 @@
     }
 }
 
-std::string AudioFlinger::MixerThread::getJsonString() const
+Json::Value AudioFlinger::MixerThread::getJsonDump() const
 {
-    // Make a non-atomic copy of fast mixer dump state so it won't change underneath us
-    // while we are dumping it.  It may be inconsistent, but it won't mutate!
-    // This is a large object so we place it on the heap.
-    // FIXME 25972958: Need an intelligent copy constructor that does not touch unused pages.
-    return std::unique_ptr<FastMixerDumpState>(new FastMixerDumpState(mFastMixerDumpState))
-        ->getJsonString();
+    Json::Value root;
+    if (hasFastMixer()) {
+        // Make a non-atomic copy of fast mixer dump state so it won't change underneath us
+        // while we are dumping it.  It may be inconsistent, but it won't mutate!
+        // This is a large object so we place it on the heap.
+        // FIXME 25972958: Need an intelligent copy constructor that does not touch unused pages.
+        const std::unique_ptr<FastMixerDumpState> copy(new FastMixerDumpState(mFastMixerDumpState));
+        root["fastmixer_stats"] = copy->getJsonDump();
+    } else {
+        root["fastmixer_stats"] = "no_fastmixer";
+    }
+    return root;
 }
 
 uint32_t AudioFlinger::MixerThread::idleSleepTimeUs() const
@@ -5229,20 +5322,20 @@
             mLeftVolFloat = left;
             mRightVolFloat = right;
 
-            // Convert volumes from float to 8.24
-            uint32_t vl = (uint32_t)(left * (1 << 24));
-            uint32_t vr = (uint32_t)(right * (1 << 24));
-
             // Delegate volume control to effect in track effect chain if needed
             // only one effect chain can be present on DirectOutputThread, so if
             // there is one, the track is connected to it
             if (!mEffectChains.isEmpty()) {
-                mEffectChains[0]->setVolume_l(&vl, &vr);
-                left = (float)vl / (1 << 24);
-                right = (float)vr / (1 << 24);
+                // if effect chain exists, volume is handled by it.
+                // Convert volumes from float to 8.24
+                uint32_t vl = (uint32_t)(left * (1 << 24));
+                uint32_t vr = (uint32_t)(right * (1 << 24));
+                // Direct/Offload effect chains set output volume in setVolume_l().
+                (void)mEffectChains[0]->setVolume_l(&vl, &vr);
+            } else {
+                // otherwise we directly set the volume.
+                setVolumeForOutput_l(left, right);
             }
-            status_t result = mOutput->stream->setVolume(left, right);
-            ALOGE_IF(result != OK, "Error when setting output stream volume: %d", result);
         }
     }
 }
@@ -6361,8 +6454,20 @@
     snprintf(mThreadName, kThreadNameLength, "AudioIn_%X", id);
     mNBLogWriter = audioFlinger->newWriter_l(kLogSize, mThreadName);
 
+    if (mInput != nullptr && mInput->audioHwDev != nullptr) {
+        mIsMsdDevice = strcmp(
+                mInput->audioHwDev->moduleName(), AUDIO_HARDWARE_MODULE_ID_MSD) == 0;
+    }
+
     readInputParameters_l();
 
+    // TODO: We may also match on address as well as device type for
+    // AUDIO_DEVICE_IN_BUS, AUDIO_DEVICE_IN_BLUETOOTH_A2DP, AUDIO_DEVICE_IN_REMOTE_SUBMIX
+    mTimestampCorrectedDevices = (audio_devices_t)property_get_int64(
+            "audio.timestamp.corrected_input_devices",
+            (int64_t)(mIsMsdDevice ? AUDIO_DEVICE_IN_BUS // turn on by default for MSD
+                                   : AUDIO_DEVICE_NONE));
+
     // create an NBAIO source for the HAL input stream, and negotiate
     mInputSource = new AudioStreamInSource(input->stream);
     size_t numCounterOffers = 0;
@@ -6700,6 +6805,14 @@
                 }
                 didModify = true;
             }
+            AudioBufferProvider* abp = (fastTrack != 0 && fastTrack->isPatchTrack()) ?
+                    reinterpret_cast<AudioBufferProvider*>(fastTrack.get()) : nullptr;
+            if (state->mFastPatchRecordBufferProvider != abp) {
+                state->mFastPatchRecordBufferProvider = abp;
+                state->mFastPatchRecordFormat = fastTrack == 0 ?
+                        AUDIO_FORMAT_INVALID : fastTrack->format();
+                didModify = true;
+            }
             sq->end(didModify);
             if (didModify) {
                 sq->push(block);
@@ -6725,8 +6838,7 @@
 
         // If an NBAIO source is present, use it to read the normal capture's data
         if (mPipeSource != 0) {
-            size_t framesToRead = mBufferSize / mFrameSize;
-            framesToRead = min(mRsmpInFramesOA - rear, mRsmpInFramesP2 / 2);
+            size_t framesToRead = min(mRsmpInFramesOA - rear, mRsmpInFramesP2 / 2);
 
             // The audio fifo read() returns OVERRUN on overflow, and advances the read pointer
             // to the full buffer point (clearing the overflow condition).  Upon OVERRUN error,
@@ -6790,7 +6902,22 @@
             int64_t position, time;
             if (mStandby) {
                 mTimestampVerifier.discontinuity();
-            } else if (mInput->stream->getCapturePosition(&position, &time) == NO_ERROR) {
+            } else if (mInput->stream->getCapturePosition(&position, &time) == NO_ERROR
+                    && time > mTimestamp.mTimeNs[ExtendedTimestamp::LOCATION_KERNEL]) {
+
+                mTimestampVerifier.add(position, time, mSampleRate);
+
+                // Correct timestamps
+                if (isTimestampCorrectionEnabled()) {
+                    ALOGV("TS_BEFORE: %d %lld %lld",
+                            id(), (long long)time, (long long)position);
+                    auto correctedTimestamp = mTimestampVerifier.getLastCorrectedTimestamp();
+                    position = correctedTimestamp.mFrames;
+                    time = correctedTimestamp.mTimeNs;
+                    ALOGV("TS_AFTER: %d %lld %lld",
+                            id(), (long long)time, (long long)position);
+                }
+
                 mTimestamp.mPosition[ExtendedTimestamp::LOCATION_KERNEL] = position;
                 mTimestamp.mTimeNs[ExtendedTimestamp::LOCATION_KERNEL] = time;
                 // Note: In general record buffers should tend to be empty in
@@ -6798,10 +6925,6 @@
                 //
                 // Also, it is not advantageous to call get_presentation_position during the read
                 // as the read obtains a lock, preventing the timestamp call from executing.
-
-                mTimestampVerifier.add(mTimestamp.mPosition[ExtendedTimestamp::LOCATION_KERNEL],
-                        mTimestamp.mTimeNs[ExtendedTimestamp::LOCATION_KERNEL],
-                        mSampleRate);
             } else {
                 mTimestampVerifier.error();
             }
@@ -6819,6 +6942,7 @@
             goto unlock;
         }
         ALOG_ASSERT(framesRead > 0);
+        mFramesRead += framesRead;
 
 #ifdef TEE_SINK
         (void)mTee.write((uint8_t*)mRsmpInBuffer + rear * mFrameSize, framesRead);
@@ -7443,6 +7567,7 @@
     audio_input_flags_t flags = input != NULL ? input->flags : AUDIO_INPUT_FLAG_NONE;
     dprintf(fd, "  AudioStreamIn: %p flags %#x (%s)\n",
             input, flags, inputFlagsToString(flags).c_str());
+    dprintf(fd, "  Frames read: %lld\n", (long long)mFramesRead);
     if (mActiveTracks.isEmpty()) {
         dprintf(fd, "  No active record clients\n");
     }
@@ -7452,7 +7577,8 @@
         (void)input->stream->dump(fd);
     }
 
-    const double latencyMs = - mTimestamp.getOutputServerLatencyMs(mSampleRate);
+    const double latencyMs = audio_is_linear_pcm(mFormat)
+            ? - mTimestamp.getOutputServerLatencyMs(mSampleRate) : 0.;
     if (latencyMs != 0.) {
         dprintf(fd, "  NormalRecord latency ms: %.2lf\n", latencyMs);
     } else {
diff --git a/services/audioflinger/Threads.h b/services/audioflinger/Threads.h
index dc23717..dce3d2e 100644
--- a/services/audioflinger/Threads.h
+++ b/services/audioflinger/Threads.h
@@ -393,6 +393,10 @@
 
                         void        broadcast_l();
 
+                virtual bool        isTimestampCorrectionEnabled() const { return false; }
+
+                bool                isMsdDevice() const { return mIsMsdDevice; }
+
     mutable     Mutex                   mLock;
 
 protected:
@@ -501,7 +505,8 @@
                 ExtendedTimestamp       mTimestamp;
                 TimestampVerifier< // For timestamp statistics.
                         int64_t /* frame count */, int64_t /* time ns */> mTimestampVerifier;
-
+                audio_devices_t         mTimestampCorrectedDevices = AUDIO_DEVICE_NONE;
+                bool                    mIsMsdDevice = false;
                 // A condition that must be evaluated by the thread loop has changed and
                 // we must not wait for async write callback in the thread loop before evaluating it
                 bool                    mSignalPending;
@@ -662,7 +667,7 @@
 
                 void        dump(int fd, const Vector<String16>& args);
                 // returns a string of audio performance related data in JSON format.
-    virtual     std::string getJsonString() const;
+    virtual     Json::Value getJsonDump() const;
 
     // Thread virtuals
     virtual     bool        threadLoop();
@@ -729,6 +734,8 @@
     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;
+
                 sp<Track>   createTrack_l(
                                 const sp<AudioFlinger::Client>& client,
                                 audio_stream_type_t streamType,
@@ -816,6 +823,11 @@
                                        && mTracks.size() < PlaybackThread::kMaxTracks;
                             }
 
+                bool        isTimestampCorrectionEnabled() const override {
+                                const audio_devices_t device =
+                                        mOutDevice & mTimestampCorrectedDevices;
+                                return audio_is_output_devices(device) && popcount(device) > 0;
+                            }
 protected:
     // updated by readOutputParameters_l()
     size_t                          mNormalFrameCount;  // normal mixer and effects
@@ -1108,7 +1120,7 @@
     virtual     bool        checkForNewParameter_l(const String8& keyValuePair,
                                                    status_t& status);
     virtual     void        dumpInternals(int fd, const Vector<String16>& args);
-                std::string getJsonString() const override;
+                Json::Value getJsonDump() const override;
 
     virtual     bool        isTrackAllowed_l(
                                     audio_channel_mask_t channelMask, audio_format_t format,
@@ -1530,6 +1542,13 @@
 
             void        updateMetadata_l() override;
 
+            bool        fastTrackAvailable() const { return mFastTrackAvail; }
+
+            bool        isTimestampCorrectionEnabled() const override {
+                            // checks popcount for exactly one device.
+                            return audio_is_input_device(
+                                    mInDevice & mTimestampCorrectedDevices);
+                        }
 private:
             // Enter standby if not already in standby, and set mStandby flag
             void    standbyIfNotAlreadyInStandby();
@@ -1599,6 +1618,8 @@
             bool                                mFastTrackAvail;    // true if fast track available
             // common state to all record threads
             std::atomic_bool                    mBtNrecSuspended;
+
+            int64_t                             mFramesRead = 0;    // continuous running counter.
 };
 
 class MmapThread : public ThreadBase
diff --git a/services/audioflinger/TrackBase.h b/services/audioflinger/TrackBase.h
index 95da9d7..a43cb75 100644
--- a/services/audioflinger/TrackBase.h
+++ b/services/audioflinger/TrackBase.h
@@ -187,6 +187,19 @@
                             return status;
                         }
 
+           // TODO: Consider making this external.
+           struct FrameTime {
+               int64_t frames;
+               int64_t timeNs;
+           };
+
+           // KernelFrameTime is updated per "mix" period even for non-pcm tracks.
+           void         getKernelFrameTime(FrameTime *ft) const {
+                           *ft = mKernelFrameTime.load();
+                        }
+
+           audio_format_t format() const { return mFormat; }
+
 protected:
     DISALLOW_COPY_AND_ASSIGN(TrackBase);
 
@@ -198,8 +211,6 @@
     // but putting it in TrackBase avoids the complexity of virtual inheritance
     virtual size_t  framesReady() const { return SIZE_MAX; }
 
-    audio_format_t format() const { return mFormat; }
-
     uint32_t channelCount() const { return mChannelCount; }
 
     audio_channel_mask_t channelMask() const { return mChannelMask; }
@@ -307,6 +318,7 @@
     bool                mServerLatencySupported = false;
     std::atomic<bool>   mServerLatencyFromTrack{}; // latency from track or server timestamp.
     std::atomic<double> mServerLatencyMs{};        // last latency pushed from server thread.
+    std::atomic<FrameTime> mKernelFrameTime{};     // last frame time on kernel side.
 };
 
 // PatchProxyBufferProvider interface is implemented by PatchTrack and PatchRecord.
diff --git a/services/audioflinger/Tracks.cpp b/services/audioflinger/Tracks.cpp
index 8b9485f..78e6c6c 100644
--- a/services/audioflinger/Tracks.cpp
+++ b/services/audioflinger/Tracks.cpp
@@ -1258,6 +1258,16 @@
 void AudioFlinger::PlaybackThread::Track::updateTrackFrameInfo(
         int64_t trackFramesReleased, int64_t sinkFramesWritten,
         uint32_t halSampleRate, const ExtendedTimestamp &timeStamp) {
+   // Make the kernel frametime available.
+    const FrameTime ft{
+            timeStamp.mPosition[ExtendedTimestamp::LOCATION_KERNEL],
+            timeStamp.mTimeNs[ExtendedTimestamp::LOCATION_KERNEL]};
+    // ALOGD("FrameTime: %lld %lld", (long long)ft.frames, (long long)ft.timeNs);
+    mKernelFrameTime.store(ft);
+    if (!audio_is_linear_pcm(mFormat)) {
+        return;
+    }
+
     //update frame map
     mFrameMap.push(trackFramesReleased, sinkFramesWritten);
 
@@ -1720,7 +1730,7 @@
         thread->mFastTrackAvail = false;
     } else {
         // TODO: only Normal Record has timestamps (Fast Record does not).
-        mServerLatencySupported = true;
+        mServerLatencySupported = audio_is_linear_pcm(mFormat);
     }
 #ifdef TEE_SINK
     mTee.setId(std::string("_") + std::to_string(mThreadIoHandle)
@@ -1886,6 +1896,16 @@
         int64_t trackFramesReleased, int64_t sourceFramesRead,
         uint32_t halSampleRate, const ExtendedTimestamp &timestamp)
 {
+   // Make the kernel frametime available.
+    const FrameTime ft{
+            timestamp.mPosition[ExtendedTimestamp::LOCATION_KERNEL],
+            timestamp.mTimeNs[ExtendedTimestamp::LOCATION_KERNEL]};
+    // ALOGD("FrameTime: %lld %lld", (long long)ft.frames, (long long)ft.timeNs);
+    mKernelFrameTime.store(ft);
+    if (!audio_is_linear_pcm(mFormat)) {
+        return;
+    }
+
     ExtendedTimestamp local = timestamp;
 
     // Convert HAL frames to server-side track frames at track sample rate.
diff --git a/services/audioflinger/TypedLogger.h b/services/audioflinger/TypedLogger.h
index 38c3c02..0fea42a 100644
--- a/services/audioflinger/TypedLogger.h
+++ b/services/audioflinger/TypedLogger.h
@@ -97,6 +97,11 @@
 #define LOG_AUDIO_STATE() do { NBLog::Writer *x = tlNBLogWriter; if (x != nullptr) \
         x->logEventHistTs(NBLog::EVENT_AUDIO_STATE, hash(__FILE__, __LINE__)); } while(0)
 
+// Record a typed entry that represents a thread's cycle time in nanoseconds.
+// Parameter ns should be of type uint32_t.
+#define LOG_MONOTONIC_CYCLE_TIME(ns) do { NBLog::Writer *x = tlNBLogWriter; if (x != nullptr) \
+        x->logMonotonicCycleTime(ns); } while (0)
+
 namespace android {
 extern "C" {
 extern thread_local NBLog::Writer *tlNBLogWriter;
diff --git a/services/audiopolicy/managerdefault/AudioPolicyManager.cpp b/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
index 92f6c79..b0e6b0f 100644
--- a/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
+++ b/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
@@ -1514,11 +1514,6 @@
         setStrategyMute(STRATEGY_SONIFICATION, true, outputDesc);
     }
 
-    if (stream == AUDIO_STREAM_ENFORCED_AUDIBLE &&
-            mEngine->getForceUse(AUDIO_POLICY_FORCE_FOR_SYSTEM) == AUDIO_POLICY_FORCE_SYSTEM_ENFORCED) {
-        setStrategyMute(STRATEGY_SONIFICATION, true, outputDesc);
-    }
-
     return NO_ERROR;
 }
 
@@ -4761,6 +4756,7 @@
 
     nextAudioPortGeneration();
 
+    audio_devices_t device = inputDesc->mDevice;
     ssize_t index = mAudioPatches.indexOfKey(inputDesc->getPatchHandle());
     if (index >= 0) {
         sp<AudioPatch> patchDesc = mAudioPatches.valueAt(index);
@@ -4771,6 +4767,12 @@
 
     inputDesc->close();
     mInputs.removeItem(input);
+
+    audio_devices_t primaryInputDevices = availablePrimaryInputDevices();
+    if (((device & primaryInputDevices & ~AUDIO_DEVICE_BIT_IN) != 0) &&
+            mInputs.activeInputsCountOnDevices(primaryInputDevices) == 0) {
+        SoundTrigger::setCaptureState(false);
+    }
 }
 
 SortedVector<audio_io_handle_t> AudioPolicyManager::getOutputsForDevice(
@@ -5813,39 +5815,7 @@
         return AUDIO_STREAM_TTS;
     }
 
-    // usage to stream type mapping
-    switch (attr->usage) {
-    case AUDIO_USAGE_MEDIA:
-    case AUDIO_USAGE_GAME:
-    case AUDIO_USAGE_ASSISTANT:
-    case AUDIO_USAGE_ASSISTANCE_NAVIGATION_GUIDANCE:
-        return AUDIO_STREAM_MUSIC;
-    case AUDIO_USAGE_ASSISTANCE_ACCESSIBILITY:
-        return AUDIO_STREAM_ACCESSIBILITY;
-    case AUDIO_USAGE_ASSISTANCE_SONIFICATION:
-        return AUDIO_STREAM_SYSTEM;
-    case AUDIO_USAGE_VOICE_COMMUNICATION:
-        return AUDIO_STREAM_VOICE_CALL;
-
-    case AUDIO_USAGE_VOICE_COMMUNICATION_SIGNALLING:
-        return AUDIO_STREAM_DTMF;
-
-    case AUDIO_USAGE_ALARM:
-        return AUDIO_STREAM_ALARM;
-    case AUDIO_USAGE_NOTIFICATION_TELEPHONY_RINGTONE:
-        return AUDIO_STREAM_RING;
-
-    case AUDIO_USAGE_NOTIFICATION:
-    case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_REQUEST:
-    case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_INSTANT:
-    case AUDIO_USAGE_NOTIFICATION_COMMUNICATION_DELAYED:
-    case AUDIO_USAGE_NOTIFICATION_EVENT:
-        return AUDIO_STREAM_NOTIFICATION;
-
-    case AUDIO_USAGE_UNKNOWN:
-    default:
-        return AUDIO_STREAM_MUSIC;
-    }
+    return audio_usage_to_stream_type(attr->usage);
 }
 
 bool AudioPolicyManager::isValidAttributes(const audio_attributes_t *paa)
diff --git a/services/audiopolicy/service/AudioPolicyEffects.cpp b/services/audiopolicy/service/AudioPolicyEffects.cpp
index fdae23b..b3d564a 100644
--- a/services/audiopolicy/service/AudioPolicyEffects.cpp
+++ b/services/audiopolicy/service/AudioPolicyEffects.cpp
@@ -23,6 +23,7 @@
 #include <memory>
 #include <cutils/misc.h>
 #include <media/AudioEffect.h>
+#include <media/AudioPolicyHelper.h>
 #include <media/EffectsConfig.h>
 #include <mediautils/ServiceUtilities.h>
 #include <system/audio.h>
@@ -317,6 +318,201 @@
     return status;
 }
 
+status_t AudioPolicyEffects::addSourceDefaultEffect(const effect_uuid_t *type,
+                                                    const String16& opPackageName,
+                                                    const effect_uuid_t *uuid,
+                                                    int32_t priority,
+                                                    audio_source_t source,
+                                                    audio_unique_id_t* id)
+{
+    if (uuid == NULL || type == NULL) {
+        ALOGE("addSourceDefaultEffect(): Null uuid or type uuid pointer");
+        return BAD_VALUE;
+    }
+
+    // HOTWORD and FM_TUNER are two special case sources > MAX.
+    if (source < AUDIO_SOURCE_DEFAULT ||
+            (source > AUDIO_SOURCE_MAX &&
+             source != AUDIO_SOURCE_HOTWORD &&
+             source != AUDIO_SOURCE_FM_TUNER)) {
+        ALOGE("addSourceDefaultEffect(): Unsupported source type %d", source);
+        return BAD_VALUE;
+    }
+
+    // Check that |uuid| or |type| corresponds to an effect on the system.
+    effect_descriptor_t descriptor = {};
+    status_t res = AudioEffect::getEffectDescriptor(
+            uuid, type, EFFECT_FLAG_TYPE_PRE_PROC, &descriptor);
+    if (res != OK) {
+        ALOGE("addSourceDefaultEffect(): Failed to find effect descriptor matching uuid/type.");
+        return res;
+    }
+
+    // Only pre-processing effects can be added dynamically as source defaults.
+    if ((descriptor.flags & EFFECT_FLAG_TYPE_MASK) != EFFECT_FLAG_TYPE_PRE_PROC) {
+        ALOGE("addSourceDefaultEffect(): Desired effect cannot be attached "
+              "as a source default effect.");
+        return BAD_VALUE;
+    }
+
+    Mutex::Autolock _l(mLock);
+
+    // Find the EffectDescVector for the given source type, or create a new one if necessary.
+    ssize_t index = mInputSources.indexOfKey(source);
+    EffectDescVector *desc = NULL;
+    if (index < 0) {
+        // No effects for this source type yet.
+        desc = new EffectDescVector();
+        mInputSources.add(source, desc);
+    } else {
+        desc = mInputSources.valueAt(index);
+    }
+
+    // Create a new effect and add it to the vector.
+    res = AudioEffect::newEffectUniqueId(id);
+    if (res != OK) {
+        ALOGE("addSourceDefaultEffect(): failed to get new unique id.");
+        return res;
+    }
+    EffectDesc *effect = new EffectDesc(
+            descriptor.name, *type, opPackageName, *uuid, priority, *id);
+    desc->mEffects.add(effect);
+    // TODO(b/71813697): Support setting params as well.
+
+    // TODO(b/71814300): Retroactively attach to any existing sources of the given type.
+    // This requires tracking the source type of each session id in addition to what is
+    // already being tracked.
+
+    return NO_ERROR;
+}
+
+status_t AudioPolicyEffects::addStreamDefaultEffect(const effect_uuid_t *type,
+                                                    const String16& opPackageName,
+                                                    const effect_uuid_t *uuid,
+                                                    int32_t priority,
+                                                    audio_usage_t usage,
+                                                    audio_unique_id_t* id)
+{
+    if (uuid == NULL || type == NULL) {
+        ALOGE("addStreamDefaultEffect(): Null uuid or type uuid pointer");
+        return BAD_VALUE;
+    }
+
+    audio_stream_type_t stream = audio_usage_to_stream_type(usage);
+
+    if (stream < AUDIO_STREAM_MIN || stream >= AUDIO_STREAM_PUBLIC_CNT) {
+        ALOGE("addStreamDefaultEffect(): Unsupported stream type %d", stream);
+        return BAD_VALUE;
+    }
+
+    // Check that |uuid| or |type| corresponds to an effect on the system.
+    effect_descriptor_t descriptor = {};
+    status_t res = AudioEffect::getEffectDescriptor(
+            uuid, type, EFFECT_FLAG_TYPE_INSERT, &descriptor);
+    if (res != OK) {
+        ALOGE("addStreamDefaultEffect(): Failed to find effect descriptor matching uuid/type.");
+        return res;
+    }
+
+    // Only insert effects can be added dynamically as stream defaults.
+    if ((descriptor.flags & EFFECT_FLAG_TYPE_MASK) != EFFECT_FLAG_TYPE_INSERT) {
+        ALOGE("addStreamDefaultEffect(): Desired effect cannot be attached "
+              "as a stream default effect.");
+        return BAD_VALUE;
+    }
+
+    Mutex::Autolock _l(mLock);
+
+    // Find the EffectDescVector for the given stream type, or create a new one if necessary.
+    ssize_t index = mOutputStreams.indexOfKey(stream);
+    EffectDescVector *desc = NULL;
+    if (index < 0) {
+        // No effects for this stream type yet.
+        desc = new EffectDescVector();
+        mOutputStreams.add(stream, desc);
+    } else {
+        desc = mOutputStreams.valueAt(index);
+    }
+
+    // Create a new effect and add it to the vector.
+    res = AudioEffect::newEffectUniqueId(id);
+    if (res != OK) {
+        ALOGE("addStreamDefaultEffect(): failed to get new unique id.");
+        return res;
+    }
+    EffectDesc *effect = new EffectDesc(
+            descriptor.name, *type, opPackageName, *uuid, priority, *id);
+    desc->mEffects.add(effect);
+    // TODO(b/71813697): Support setting params as well.
+
+    // TODO(b/71814300): Retroactively attach to any existing streams of the given type.
+    // This requires tracking the stream type of each session id in addition to what is
+    // already being tracked.
+
+    return NO_ERROR;
+}
+
+status_t AudioPolicyEffects::removeSourceDefaultEffect(audio_unique_id_t id)
+{
+    if (id == AUDIO_UNIQUE_ID_ALLOCATE) {
+        // ALLOCATE is not a unique identifier, but rather a reserved value indicating
+        // a real id has not been assigned. For default effects, this value is only used
+        // by system-owned defaults from the loaded config, which cannot be removed.
+        return BAD_VALUE;
+    }
+
+    Mutex::Autolock _l(mLock);
+
+    // Check each source type.
+    size_t numSources = mInputSources.size();
+    for (size_t i = 0; i < numSources; ++i) {
+        // Check each effect for each source.
+        EffectDescVector* descVector = mInputSources[i];
+        for (auto desc = descVector->mEffects.begin(); desc != descVector->mEffects.end(); ++desc) {
+            if ((*desc)->mId == id) {
+                // Found it!
+                // TODO(b/71814300): Remove from any sources the effect was attached to.
+                descVector->mEffects.erase(desc);
+                // Handles are unique; there can only be one match, so return early.
+                return NO_ERROR;
+            }
+        }
+    }
+
+    // Effect wasn't found, so it's been trivially removed successfully.
+    return NO_ERROR;
+}
+
+status_t AudioPolicyEffects::removeStreamDefaultEffect(audio_unique_id_t id)
+{
+    if (id == AUDIO_UNIQUE_ID_ALLOCATE) {
+        // ALLOCATE is not a unique identifier, but rather a reserved value indicating
+        // a real id has not been assigned. For default effects, this value is only used
+        // by system-owned defaults from the loaded config, which cannot be removed.
+        return BAD_VALUE;
+    }
+
+    Mutex::Autolock _l(mLock);
+
+    // Check each stream type.
+    size_t numStreams = mOutputStreams.size();
+    for (size_t i = 0; i < numStreams; ++i) {
+        // Check each effect for each stream.
+        EffectDescVector* descVector = mOutputStreams[i];
+        for (auto desc = descVector->mEffects.begin(); desc != descVector->mEffects.end(); ++desc) {
+            if ((*desc)->mId == id) {
+                // Found it!
+                // TODO(b/71814300): Remove from any streams the effect was attached to.
+                descVector->mEffects.erase(desc);
+                // Handles are unique; there can only be one match, so return early.
+                return NO_ERROR;
+            }
+        }
+    }
+
+    // Effect wasn't found, so it's been trivially removed successfully.
+    return NO_ERROR;
+}
 
 void AudioPolicyEffects::EffectVector::setProcessorEnabled(bool enabled)
 {
diff --git a/services/audiopolicy/service/AudioPolicyEffects.h b/services/audiopolicy/service/AudioPolicyEffects.h
index 623180e..6ad01f7 100644
--- a/services/audiopolicy/service/AudioPolicyEffects.h
+++ b/services/audiopolicy/service/AudioPolicyEffects.h
@@ -64,7 +64,6 @@
     status_t releaseInputEffects(audio_io_handle_t input,
                                  audio_session_t audioSession);
 
-
     // Return a list of effect descriptors for default output effects
     // associated with audioSession
     status_t queryDefaultOutputSessionEffects(audio_session_t audioSession,
@@ -82,18 +81,60 @@
                              audio_stream_type_t stream,
                              audio_session_t audioSession);
 
+    // Add the effect to the list of default effects for sources of type |source|.
+    status_t addSourceDefaultEffect(const effect_uuid_t *type,
+                                    const String16& opPackageName,
+                                    const effect_uuid_t *uuid,
+                                    int32_t priority,
+                                    audio_source_t source,
+                                    audio_unique_id_t* id);
+
+    // Add the effect to the list of default effects for streams of a given usage.
+    status_t addStreamDefaultEffect(const effect_uuid_t *type,
+                                    const String16& opPackageName,
+                                    const effect_uuid_t *uuid,
+                                    int32_t priority,
+                                    audio_usage_t usage,
+                                    audio_unique_id_t* id);
+
+    // Remove the default source effect from wherever it's attached.
+    status_t removeSourceDefaultEffect(audio_unique_id_t id);
+
+    // Remove the default stream effect from wherever it's attached.
+    status_t removeStreamDefaultEffect(audio_unique_id_t id);
+
 private:
 
     // class to store the description of an effects and its parameters
     // as defined in audio_effects.conf
     class EffectDesc {
     public:
-        EffectDesc(const char *name, const effect_uuid_t& uuid) :
+        EffectDesc(const char *name,
+                   const effect_uuid_t& typeUuid,
+                   const String16& opPackageName,
+                   const effect_uuid_t& uuid,
+                   uint32_t priority,
+                   audio_unique_id_t id) :
                         mName(strdup(name)),
-                        mUuid(uuid) { }
+                        mTypeUuid(typeUuid),
+                        mOpPackageName(opPackageName),
+                        mUuid(uuid),
+                        mPriority(priority),
+                        mId(id) { }
+        EffectDesc(const char *name, const effect_uuid_t& uuid) :
+                        EffectDesc(name,
+                                   *EFFECT_UUID_NULL,
+                                   String16(""),
+                                   uuid,
+                                   0,
+                                   AUDIO_UNIQUE_ID_ALLOCATE) { }
         EffectDesc(const EffectDesc& orig) :
                         mName(strdup(orig.mName)),
-                        mUuid(orig.mUuid) {
+                        mTypeUuid(orig.mTypeUuid),
+                        mOpPackageName(orig.mOpPackageName),
+                        mUuid(orig.mUuid),
+                        mPriority(orig.mPriority),
+                        mId(orig.mId) {
                             // deep copy mParams
                             for (size_t k = 0; k < orig.mParams.size(); k++) {
                                 effect_param_t *origParam = orig.mParams[k];
@@ -116,7 +157,11 @@
             }
         }
         char *mName;
+        effect_uuid_t mTypeUuid;
+        String16 mOpPackageName;
         effect_uuid_t mUuid;
+        int32_t mPriority;
+        audio_unique_id_t mId;
         Vector <effect_param_t *> mParams;
     };
 
diff --git a/services/audiopolicy/service/AudioPolicyInterfaceImpl.cpp b/services/audiopolicy/service/AudioPolicyInterfaceImpl.cpp
index dbfda44..02ab07f 100644
--- a/services/audiopolicy/service/AudioPolicyInterfaceImpl.cpp
+++ b/services/audiopolicy/service/AudioPolicyInterfaceImpl.cpp
@@ -254,15 +254,6 @@
 
 status_t AudioPolicyService::stopOutput(audio_port_handle_t portId)
 {
-    {
-        Mutex::Autolock _l(mLock);
-
-        const ssize_t index = mAudioPlaybackClients.indexOfKey(portId);
-        if (index < 0) {
-            ALOGE("%s AudioTrack client not found for portId %d", __FUNCTION__, portId);
-            return INVALID_OPERATION;
-        }
-    }
     if (mAudioPolicyManager == NULL) {
         return NO_INIT;
     }
@@ -838,27 +829,100 @@
     return mAudioPolicyManager->isSourceActive(source);
 }
 
-status_t AudioPolicyService::queryDefaultPreProcessing(audio_session_t audioSession,
-                                                       effect_descriptor_t *descriptors,
-                                                       uint32_t *count)
+status_t AudioPolicyService::getAudioPolicyEffects(sp<AudioPolicyEffects>& audioPolicyEffects)
 {
     if (mAudioPolicyManager == NULL) {
-        *count = 0;
         return NO_INIT;
     }
-    sp<AudioPolicyEffects>audioPolicyEffects;
     {
         Mutex::Autolock _l(mLock);
         audioPolicyEffects = mAudioPolicyEffects;
     }
     if (audioPolicyEffects == 0) {
-        *count = 0;
         return NO_INIT;
     }
+
+    return OK;
+}
+
+status_t AudioPolicyService::queryDefaultPreProcessing(audio_session_t audioSession,
+                                                       effect_descriptor_t *descriptors,
+                                                       uint32_t *count)
+{
+    sp<AudioPolicyEffects>audioPolicyEffects;
+    status_t status = getAudioPolicyEffects(audioPolicyEffects);
+    if (status != OK) {
+        *count = 0;
+        return status;
+    }
     return audioPolicyEffects->queryDefaultInputEffects(
             (audio_session_t)audioSession, descriptors, count);
 }
 
+status_t AudioPolicyService::addSourceDefaultEffect(const effect_uuid_t *type,
+                                                    const String16& opPackageName,
+                                                    const effect_uuid_t *uuid,
+                                                    int32_t priority,
+                                                    audio_source_t source,
+                                                    audio_unique_id_t* id)
+{
+    sp<AudioPolicyEffects>audioPolicyEffects;
+    status_t status = getAudioPolicyEffects(audioPolicyEffects);
+    if (status != OK) {
+        return status;
+    }
+    if (!modifyDefaultAudioEffectsAllowed()) {
+        return PERMISSION_DENIED;
+    }
+    return audioPolicyEffects->addSourceDefaultEffect(
+            type, opPackageName, uuid, priority, source, id);
+}
+
+status_t AudioPolicyService::addStreamDefaultEffect(const effect_uuid_t *type,
+                                                    const String16& opPackageName,
+                                                    const effect_uuid_t *uuid,
+                                                    int32_t priority,
+                                                    audio_usage_t usage,
+                                                    audio_unique_id_t* id)
+{
+    sp<AudioPolicyEffects>audioPolicyEffects;
+    status_t status = getAudioPolicyEffects(audioPolicyEffects);
+    if (status != OK) {
+        return status;
+    }
+    if (!modifyDefaultAudioEffectsAllowed()) {
+        return PERMISSION_DENIED;
+    }
+    return audioPolicyEffects->addStreamDefaultEffect(
+            type, opPackageName, uuid, priority, usage, id);
+}
+
+status_t AudioPolicyService::removeSourceDefaultEffect(audio_unique_id_t id)
+{
+    sp<AudioPolicyEffects>audioPolicyEffects;
+    status_t status = getAudioPolicyEffects(audioPolicyEffects);
+    if (status != OK) {
+        return status;
+    }
+    if (!modifyDefaultAudioEffectsAllowed()) {
+        return PERMISSION_DENIED;
+    }
+    return audioPolicyEffects->removeSourceDefaultEffect(id);
+}
+
+status_t AudioPolicyService::removeStreamDefaultEffect(audio_unique_id_t id)
+{
+    sp<AudioPolicyEffects>audioPolicyEffects;
+    status_t status = getAudioPolicyEffects(audioPolicyEffects);
+    if (status != OK) {
+        return status;
+    }
+    if (!modifyDefaultAudioEffectsAllowed()) {
+        return PERMISSION_DENIED;
+    }
+    return audioPolicyEffects->removeStreamDefaultEffect(id);
+}
+
 bool AudioPolicyService::isOffloadSupported(const audio_offload_info_t& info)
 {
     if (mAudioPolicyManager == NULL) {
diff --git a/services/audiopolicy/service/AudioPolicyService.h b/services/audiopolicy/service/AudioPolicyService.h
index 6a25668..6c55647 100644
--- a/services/audiopolicy/service/AudioPolicyService.h
+++ b/services/audiopolicy/service/AudioPolicyService.h
@@ -126,6 +126,21 @@
     virtual status_t queryDefaultPreProcessing(audio_session_t audioSession,
                                               effect_descriptor_t *descriptors,
                                               uint32_t *count);
+    virtual status_t addSourceDefaultEffect(const effect_uuid_t *type,
+                                            const String16& opPackageName,
+                                            const effect_uuid_t *uuid,
+                                            int32_t priority,
+                                            audio_source_t source,
+                                            audio_unique_id_t* id);
+    virtual status_t addStreamDefaultEffect(const effect_uuid_t *type,
+                                            const String16& opPackageName,
+                                            const effect_uuid_t *uuid,
+                                            int32_t priority,
+                                            audio_usage_t usage,
+                                            audio_unique_id_t* id);
+    virtual status_t removeSourceDefaultEffect(audio_unique_id_t id);
+    virtual status_t removeStreamDefaultEffect(audio_unique_id_t id);
+
     virtual     status_t    onTransact(
                                 uint32_t code,
                                 const Parcel& data,
@@ -251,6 +266,8 @@
 
     std::string getDeviceTypeStrForPortId(audio_port_handle_t portId);
 
+    status_t getAudioPolicyEffects(sp<AudioPolicyEffects>& audioPolicyEffects);
+
     // If recording we need to make sure the UID is allowed to do that. If the UID is idle
     // then it cannot record and gets buffers with zeros - silence. As soon as the UID
     // transitions to an active state we will start reporting buffers with data. This approach
diff --git a/services/camera/libcameraservice/Android.bp b/services/camera/libcameraservice/Android.bp
new file mode 100644
index 0000000..eccbe54
--- /dev/null
+++ b/services/camera/libcameraservice/Android.bp
@@ -0,0 +1,106 @@
+// Copyright 2018 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+//
+// libcameraservice
+//
+
+cc_library_shared {
+    name: "libcameraservice",
+
+    // Camera service source
+
+    srcs: [
+        "CameraService.cpp",
+        "CameraFlashlight.cpp",
+        "common/Camera2ClientBase.cpp",
+        "common/CameraDeviceBase.cpp",
+        "common/CameraProviderManager.cpp",
+        "common/FrameProcessorBase.cpp",
+        "api1/CameraClient.cpp",
+        "api1/Camera2Client.cpp",
+        "api1/client2/Parameters.cpp",
+        "api1/client2/FrameProcessor.cpp",
+        "api1/client2/StreamingProcessor.cpp",
+        "api1/client2/JpegProcessor.cpp",
+        "api1/client2/CallbackProcessor.cpp",
+        "api1/client2/JpegCompressor.cpp",
+        "api1/client2/CaptureSequencer.cpp",
+        "api1/client2/ZslProcessor.cpp",
+        "api2/CameraDeviceClient.cpp",
+        "device1/CameraHardwareInterface.cpp",
+        "device3/Camera3Device.cpp",
+        "device3/Camera3Stream.cpp",
+        "device3/Camera3IOStreamBase.cpp",
+        "device3/Camera3InputStream.cpp",
+        "device3/Camera3OutputStream.cpp",
+        "device3/Camera3DummyStream.cpp",
+        "device3/Camera3SharedOutputStream.cpp",
+        "device3/StatusTracker.cpp",
+        "device3/Camera3BufferManager.cpp",
+        "device3/Camera3StreamSplitter.cpp",
+        "device3/DistortionMapper.cpp",
+        "gui/RingBufferConsumer.cpp",
+        "utils/CameraTraces.cpp",
+        "utils/AutoConditionLock.cpp",
+        "utils/TagMonitor.cpp",
+        "utils/LatencyHistogram.cpp",
+    ],
+
+    shared_libs: [
+        "libui",
+        "liblog",
+        "libutilscallstack",
+        "libutils",
+        "libbinder",
+        "libcutils",
+        "libmedia",
+        "libmediautils",
+        "libcamera_client",
+        "libcamera_metadata",
+        "libfmq",
+        "libgui",
+        "libhardware",
+        "libhidlbase",
+        "libhidltransport",
+        "libjpeg",
+        "libmemunreachable",
+        "android.hardware.camera.common@1.0",
+        "android.hardware.camera.provider@2.4",
+        "android.hardware.camera.device@1.0",
+        "android.hardware.camera.device@3.2",
+        "android.hardware.camera.device@3.3",
+        "android.hardware.camera.device@3.4",
+    ],
+
+    export_shared_lib_headers: [
+        "libbinder",
+        "libcamera_client",
+        "libfmq",
+    ],
+
+    include_dirs: [
+        "system/media/private/camera/include",
+        "frameworks/native/include/media/openmax",
+    ],
+
+    export_include_dirs: ["."],
+
+    cflags: [
+        "-Wall",
+        "-Wextra",
+        "-Werror",
+    ],
+
+}
diff --git a/services/camera/libcameraservice/Android.mk b/services/camera/libcameraservice/Android.mk
index 96261ab..4cfecfd 100644
--- a/services/camera/libcameraservice/Android.mk
+++ b/services/camera/libcameraservice/Android.mk
@@ -14,91 +14,9 @@
 
 LOCAL_PATH:= $(call my-dir)
 
-#
-# libcameraservice
-#
-
 include $(CLEAR_VARS)
 
-# Camera service source
-
-LOCAL_SRC_FILES :=  \
-    CameraService.cpp \
-    CameraFlashlight.cpp \
-    common/Camera2ClientBase.cpp \
-    common/CameraDeviceBase.cpp \
-    common/CameraProviderManager.cpp \
-    common/FrameProcessorBase.cpp \
-    api1/CameraClient.cpp \
-    api1/Camera2Client.cpp \
-    api1/client2/Parameters.cpp \
-    api1/client2/FrameProcessor.cpp \
-    api1/client2/StreamingProcessor.cpp \
-    api1/client2/JpegProcessor.cpp \
-    api1/client2/CallbackProcessor.cpp \
-    api1/client2/JpegCompressor.cpp \
-    api1/client2/CaptureSequencer.cpp \
-    api1/client2/ZslProcessor.cpp \
-    api2/CameraDeviceClient.cpp \
-    device1/CameraHardwareInterface.cpp \
-    device3/Camera3Device.cpp \
-    device3/Camera3Stream.cpp \
-    device3/Camera3IOStreamBase.cpp \
-    device3/Camera3InputStream.cpp \
-    device3/Camera3OutputStream.cpp \
-    device3/Camera3DummyStream.cpp \
-    device3/Camera3SharedOutputStream.cpp \
-    device3/StatusTracker.cpp \
-    device3/Camera3BufferManager.cpp \
-    device3/Camera3StreamSplitter.cpp \
-    device3/DistortionMapper.cpp \
-    gui/RingBufferConsumer.cpp \
-    utils/CameraTraces.cpp \
-    utils/AutoConditionLock.cpp \
-    utils/TagMonitor.cpp \
-    utils/LatencyHistogram.cpp
-
-LOCAL_SHARED_LIBRARIES:= \
-    libui \
-    liblog \
-    libutilscallstack \
-    libutils \
-    libbinder \
-    libcutils \
-    libmedia \
-    libmediautils \
-    libcamera_client \
-    libcamera_metadata \
-    libfmq \
-    libgui \
-    libhardware \
-    libhidlbase \
-    libhidltransport \
-    libjpeg \
-    libmemunreachable \
-    android.hardware.camera.common@1.0 \
-    android.hardware.camera.provider@2.4 \
-    android.hardware.camera.device@1.0 \
-    android.hardware.camera.device@3.2 \
-    android.hardware.camera.device@3.3 \
-    android.hardware.camera.device@3.4
-
-LOCAL_EXPORT_SHARED_LIBRARY_HEADERS := libbinder libcamera_client libfmq
-
-LOCAL_C_INCLUDES += \
-    system/media/private/camera/include \
-    frameworks/native/include/media/openmax
-
-LOCAL_EXPORT_C_INCLUDE_DIRS := \
-    frameworks/av/services/camera/libcameraservice
-
-LOCAL_CFLAGS += -Wall -Wextra -Werror
-
-LOCAL_MODULE:= libcameraservice
-
-include $(BUILD_SHARED_LIBRARY)
-
-# Build tests too
+# Build tests
 
 include $(LOCAL_PATH)/tests/Android.mk
 
diff --git a/services/camera/libcameraservice/CameraService.cpp b/services/camera/libcameraservice/CameraService.cpp
index c41de82..f9240db 100644
--- a/services/camera/libcameraservice/CameraService.cpp
+++ b/services/camera/libcameraservice/CameraService.cpp
@@ -582,7 +582,7 @@
 Status CameraService::makeClient(const sp<CameraService>& cameraService,
         const sp<IInterface>& cameraCb, const String16& packageName, const String8& cameraId,
         int api1CameraId, int facing, int clientPid, uid_t clientUid, int servicePid,
-        bool legacyMode, int halVersion, int deviceVersion, apiLevel effectiveApiLevel,
+        int halVersion, int deviceVersion, apiLevel effectiveApiLevel,
         /*out*/sp<BasicClient>* client) {
 
     if (halVersion < 0 || halVersion == deviceVersion) {
@@ -594,7 +594,7 @@
                 sp<ICameraClient> tmp = static_cast<ICameraClient*>(cameraCb.get());
                 *client = new CameraClient(cameraService, tmp, packageName,
                         api1CameraId, facing, clientPid, clientUid,
-                        getpid(), legacyMode);
+                        getpid());
             } else { // Camera2 API route
                 ALOGW("Camera using old HAL version: %d", deviceVersion);
                 return STATUS_ERROR_FMT(ERROR_DEPRECATED_HAL,
@@ -612,7 +612,7 @@
                 *client = new Camera2Client(cameraService, tmp, packageName,
                         cameraId, api1CameraId,
                         facing, clientPid, clientUid,
-                        servicePid, legacyMode);
+                        servicePid);
             } else { // Camera2 API route
                 sp<hardware::camera2::ICameraDeviceCallbacks> tmp =
                         static_cast<hardware::camera2::ICameraDeviceCallbacks*>(cameraCb.get());
@@ -636,7 +636,7 @@
             sp<ICameraClient> tmp = static_cast<ICameraClient*>(cameraCb.get());
             *client = new CameraClient(cameraService, tmp, packageName,
                     api1CameraId, facing, clientPid, clientUid,
-                    servicePid, legacyMode);
+                    servicePid);
         } else {
             // Other combinations (e.g. HAL3.x open as HAL2.x) are not supported yet.
             ALOGE("Invalid camera HAL version %x: HAL %x device can only be"
@@ -735,8 +735,7 @@
             sp<ICameraClient>{nullptr}, id, cameraId,
             static_cast<int>(CAMERA_HAL_API_VERSION_UNSPECIFIED),
             internalPackageName, uid, USE_CALLING_PID,
-            API_1, /*legacyMode*/ false, /*shimUpdateOnly*/ true,
-            /*out*/ tmp)
+            API_1, /*shimUpdateOnly*/ true, /*out*/ tmp)
             ).isOk()) {
         ALOGE("%s: Error initializing shim metadata: %s", __FUNCTION__, ret.toString8().string());
     }
@@ -1200,8 +1199,7 @@
     sp<Client> client = nullptr;
     ret = connectHelper<ICameraClient,Client>(cameraClient, id, api1CameraId,
             CAMERA_HAL_API_VERSION_UNSPECIFIED, clientPackageName, clientUid, clientPid, API_1,
-            /*legacyMode*/ false, /*shimUpdateOnly*/ false,
-            /*out*/client);
+            /*shimUpdateOnly*/ false, /*out*/client);
 
     if(!ret.isOk()) {
         logRejected(id, getCallingPid(), String8(clientPackageName),
@@ -1227,8 +1225,7 @@
     Status ret = Status::ok();
     sp<Client> client = nullptr;
     ret = connectHelper<ICameraClient,Client>(cameraClient, id, api1CameraId, halVersion,
-            clientPackageName, clientUid, USE_CALLING_PID, API_1,
-            /*legacyMode*/ true, /*shimUpdateOnly*/ false,
+            clientPackageName, clientUid, USE_CALLING_PID, API_1, /*shimUpdateOnly*/ false,
             /*out*/client);
 
     if(!ret.isOk()) {
@@ -1256,9 +1253,7 @@
     ret = connectHelper<hardware::camera2::ICameraDeviceCallbacks,CameraDeviceClient>(cameraCb, id,
             /*api1CameraId*/-1,
             CAMERA_HAL_API_VERSION_UNSPECIFIED, clientPackageName,
-            clientUid, USE_CALLING_PID, API_2,
-            /*legacyMode*/ false, /*shimUpdateOnly*/ false,
-            /*out*/client);
+            clientUid, USE_CALLING_PID, API_2, /*shimUpdateOnly*/ false, /*out*/client);
 
     if(!ret.isOk()) {
         logRejected(id, getCallingPid(), String8(clientPackageName),
@@ -1273,7 +1268,7 @@
 template<class CALLBACK, class CLIENT>
 Status CameraService::connectHelper(const sp<CALLBACK>& cameraCb, const String8& cameraId,
         int api1CameraId, int halVersion, const String16& clientPackageName, int clientUid,
-        int clientPid, apiLevel effectiveApiLevel, bool legacyMode, bool shimUpdateOnly,
+        int clientPid, apiLevel effectiveApiLevel, bool shimUpdateOnly,
         /*out*/sp<CLIENT>& device) {
     binder::Status ret = binder::Status::ok();
 
@@ -1358,7 +1353,7 @@
         sp<BasicClient> tmp = nullptr;
         if(!(ret = makeClient(this, cameraCb, clientPackageName,
                 cameraId, api1CameraId, facing,
-                clientPid, clientUid, getpid(), legacyMode,
+                clientPid, clientUid, getpid(),
                 halVersion, deviceVersion, effectiveApiLevel,
                 /*out*/&tmp)).isOk()) {
             return ret;
@@ -2434,7 +2429,8 @@
     return isUidActiveLocked(uid, callingPackage);
 }
 
-static const int kPollUidActiveTimeoutMillis = 50;
+static const int64_t kPollUidActiveTimeoutTotalMillis = 300;
+static const int64_t kPollUidActiveTimeoutMillis = 50;
 
 bool CameraService::UidPolicy::isUidActiveLocked(uid_t uid, String16 callingPackage) {
     // Non-app UIDs are considered always active
@@ -2462,7 +2458,8 @@
             // activity being resumed. The proper fix is very risky, so we temporary add
             // some polling which should happen pretty rarely anyway as the race is hard
             // to hit.
-            active = am.isUidActive(uid, callingPackage);
+            active = mActiveUids.find(uid) != mActiveUids.end();
+            if (!active) active = am.isUidActive(uid, callingPackage);
             if (active) {
                 break;
             }
@@ -2470,11 +2467,15 @@
                 startTimeMillis = uptimeMillis();
             }
             int64_t ellapsedTimeMillis = uptimeMillis() - startTimeMillis;
-            int64_t remainingTimeMillis = kPollUidActiveTimeoutMillis - ellapsedTimeMillis;
+            int64_t remainingTimeMillis = kPollUidActiveTimeoutTotalMillis - ellapsedTimeMillis;
             if (remainingTimeMillis <= 0) {
                 break;
             }
+            remainingTimeMillis = std::min(kPollUidActiveTimeoutMillis, remainingTimeMillis);
+
+            mUidLock.unlock();
             usleep(remainingTimeMillis * 1000);
+            mUidLock.lock();
         } while (true);
 
         if (active) {
diff --git a/services/camera/libcameraservice/CameraService.h b/services/camera/libcameraservice/CameraService.h
index 8d4bcdb..e4a18d3 100644
--- a/services/camera/libcameraservice/CameraService.h
+++ b/services/camera/libcameraservice/CameraService.h
@@ -585,8 +585,7 @@
     template<class CALLBACK, class CLIENT>
     binder::Status connectHelper(const sp<CALLBACK>& cameraCb, const String8& cameraId,
             int api1CameraId, int halVersion, const String16& clientPackageName,
-            int clientUid, int clientPid,
-            apiLevel effectiveApiLevel, bool legacyMode, bool shimUpdateOnly,
+            int clientUid, int clientPid, apiLevel effectiveApiLevel, bool shimUpdateOnly,
             /*out*/sp<CLIENT>& device);
 
     // Lock guarding camera service state
@@ -844,7 +843,7 @@
     static binder::Status makeClient(const sp<CameraService>& cameraService,
             const sp<IInterface>& cameraCb, const String16& packageName, const String8& cameraId,
             int api1CameraId, int facing, int clientPid, uid_t clientUid, int servicePid,
-            bool legacyMode, int halVersion, int deviceVersion, apiLevel effectiveApiLevel,
+            int halVersion, int deviceVersion, apiLevel effectiveApiLevel,
             /*out*/sp<BasicClient>* client);
 
     status_t checkCameraAccess(const String16& opPackageName);
diff --git a/services/camera/libcameraservice/TEST_MAPPING b/services/camera/libcameraservice/TEST_MAPPING
new file mode 100644
index 0000000..6fdac68
--- /dev/null
+++ b/services/camera/libcameraservice/TEST_MAPPING
@@ -0,0 +1,7 @@
+{
+  "presubmit": [
+    {
+       "name": "cameraservice_test"
+    }
+  ]
+}
diff --git a/services/camera/libcameraservice/api1/Camera2Client.cpp b/services/camera/libcameraservice/api1/Camera2Client.cpp
index c8b3c2f..bf18c48 100644
--- a/services/camera/libcameraservice/api1/Camera2Client.cpp
+++ b/services/camera/libcameraservice/api1/Camera2Client.cpp
@@ -54,8 +54,7 @@
         int cameraFacing,
         int clientPid,
         uid_t clientUid,
-        int servicePid,
-        bool legacyMode):
+        int servicePid):
         Camera2ClientBase(cameraService, cameraClient, clientPackageName,
                 cameraDeviceId, api1CameraId, cameraFacing,
                 clientPid, clientUid, servicePid),
@@ -65,8 +64,6 @@
 
     SharedParameters::Lock l(mParameters);
     l.mParameters.state = Parameters::DISCONNECTED;
-
-    mLegacyMode = legacyMode;
 }
 
 status_t Camera2Client::initialize(sp<CameraProviderManager> manager, const String8& monitorTags) {
@@ -456,8 +453,6 @@
 
     mDevice->disconnect();
 
-    mDevice.clear();
-
     CameraService::Client::disconnect();
 
     return res;
@@ -1443,7 +1438,7 @@
     return OK;
 }
 
-status_t Camera2Client::takePicture(int msgType) {
+status_t Camera2Client::takePicture(int /*msgType*/) {
     ATRACE_CALL();
     Mutex::Autolock icl(mBinderSerializationLock);
     status_t res;
@@ -1542,7 +1537,7 @@
     // Need HAL to have correct settings before (possibly) triggering precapture
     syncWithDevice();
 
-    res = mCaptureSequencer->startCapture(msgType);
+    res = mCaptureSequencer->startCapture();
     if (res != OK) {
         ALOGE("%s: Camera %d: Unable to start capture: %s (%d)",
                 __FUNCTION__, mCameraId, strerror(-res), res);
@@ -1662,27 +1657,6 @@
         return OK;
     }
 
-    // the camera2 api legacy mode can unconditionally disable the shutter sound
-    if (mLegacyMode) {
-        ALOGV("%s: Disable shutter sound in legacy mode", __FUNCTION__);
-        l.mParameters.playShutterSound = false;
-        return OK;
-    }
-
-    // Disabling shutter sound may not be allowed. In that case only
-    // allow the mediaserver process to disable the sound.
-    char value[PROPERTY_VALUE_MAX];
-    property_get("ro.camera.sound.forced", value, "0");
-    if (strncmp(value, "0", 2) != 0) {
-        // Disabling shutter sound is not allowed. Deny if the current
-        // process is not mediaserver.
-        if (getCallingPid() != getpid()) {
-            ALOGE("Failed to disable shutter sound. Permission denied (pid %d)",
-                    getCallingPid());
-            return PERMISSION_DENIED;
-        }
-    }
-
     l.mParameters.playShutterSound = false;
     return OK;
 }
diff --git a/services/camera/libcameraservice/api1/Camera2Client.h b/services/camera/libcameraservice/api1/Camera2Client.h
index 44929c3..a9ea271 100644
--- a/services/camera/libcameraservice/api1/Camera2Client.h
+++ b/services/camera/libcameraservice/api1/Camera2Client.h
@@ -96,8 +96,7 @@
             int cameraFacing,
             int clientPid,
             uid_t clientUid,
-            int servicePid,
-            bool legacyMode);
+            int servicePid);
 
     virtual ~Camera2Client();
 
diff --git a/services/camera/libcameraservice/api1/CameraClient.cpp b/services/camera/libcameraservice/api1/CameraClient.cpp
index f1203f9..ce44efe 100644
--- a/services/camera/libcameraservice/api1/CameraClient.cpp
+++ b/services/camera/libcameraservice/api1/CameraClient.cpp
@@ -40,7 +40,7 @@
         const String16& clientPackageName,
         int cameraId, int cameraFacing,
         int clientPid, int clientUid,
-        int servicePid, bool legacyMode):
+        int servicePid):
         Client(cameraService, cameraClient, clientPackageName,
                 String8::format("%d", cameraId), cameraId, cameraFacing, clientPid,
                 clientUid, servicePid)
@@ -57,7 +57,6 @@
     // Callback is disabled by default
     mPreviewCallbackFlag = CAMERA_FRAME_CALLBACK_FLAG_NOOP;
     mOrientation = getOrientation(0, mCameraFacing == CAMERA_FACING_FRONT);
-    mLegacyMode = legacyMode;
     mPlayShutterSound = true;
     LOG1("CameraClient::CameraClient X (pid %d, id %d)", callingPid, cameraId);
 }
@@ -715,26 +714,6 @@
         return OK;
     }
 
-    // the camera2 api legacy mode can unconditionally disable the shutter sound
-    if (mLegacyMode) {
-        ALOGV("%s: Disable shutter sound in legacy mode", __FUNCTION__);
-        mPlayShutterSound = false;
-        return OK;
-    }
-
-    // Disabling shutter sound may not be allowed. In that case only
-    // allow the mediaserver process to disable the sound.
-    char value[PROPERTY_VALUE_MAX];
-    property_get("ro.camera.sound.forced", value, "0");
-    if (strcmp(value, "0") != 0) {
-        // Disabling shutter sound is not allowed. Deny if the current
-        // process is not mediaserver.
-        if (getCallingPid() != getpid()) {
-            ALOGE("Failed to disable shutter sound. Permission denied (pid %d)", getCallingPid());
-            return PERMISSION_DENIED;
-        }
-    }
-
     mPlayShutterSound = false;
     return OK;
 }
diff --git a/services/camera/libcameraservice/api1/CameraClient.h b/services/camera/libcameraservice/api1/CameraClient.h
index 1910536..9530b6c 100644
--- a/services/camera/libcameraservice/api1/CameraClient.h
+++ b/services/camera/libcameraservice/api1/CameraClient.h
@@ -68,8 +68,7 @@
             int cameraFacing,
             int clientPid,
             int clientUid,
-            int servicePid,
-            bool legacyMode = false);
+            int servicePid);
     ~CameraClient();
 
     virtual status_t initialize(sp<CameraProviderManager> manager,
diff --git a/services/camera/libcameraservice/api1/client2/CaptureSequencer.cpp b/services/camera/libcameraservice/api1/client2/CaptureSequencer.cpp
index 1ee216f..f42cdd3 100644
--- a/services/camera/libcameraservice/api1/client2/CaptureSequencer.cpp
+++ b/services/camera/libcameraservice/api1/client2/CaptureSequencer.cpp
@@ -50,8 +50,7 @@
         mStateTransitionCount(0),
         mTriggerId(0),
         mTimeoutCount(0),
-        mCaptureId(Camera2Client::kCaptureRequestIdStart),
-        mMsgType(0) {
+        mCaptureId(Camera2Client::kCaptureRequestIdStart) {
     ALOGV("%s", __FUNCTION__);
 }
 
@@ -64,7 +63,7 @@
     mZslProcessor = processor;
 }
 
-status_t CaptureSequencer::startCapture(int msgType) {
+status_t CaptureSequencer::startCapture() {
     ALOGV("%s", __FUNCTION__);
     ATRACE_CALL();
     Mutex::Autolock l(mInputMutex);
@@ -73,7 +72,6 @@
         return INVALID_OPERATION;
     }
     if (!mStartCapture) {
-        mMsgType = msgType;
         mStartCapture = true;
         mStartCaptureSignal.signal();
     }
@@ -386,7 +384,7 @@
 
     SharedParameters::Lock l(client->getParameters());
     /* warning: this also locks a SharedCameraCallbacks */
-    shutterNotifyLocked(l.mParameters, client, mMsgType);
+    shutterNotifyLocked(l.mParameters, client);
     mShutterNotified = true;
     mTimeoutCount = kMaxTimeoutsForCaptureEnd;
     return STANDARD_CAPTURE_WAIT;
@@ -610,7 +608,7 @@
         if (!mShutterNotified) {
             SharedParameters::Lock l(client->getParameters());
             /* warning: this also locks a SharedCameraCallbacks */
-            shutterNotifyLocked(l.mParameters, client, mMsgType);
+            shutterNotifyLocked(l.mParameters, client);
             mShutterNotified = true;
         }
     } else if (mTimeoutCount <= 0) {
@@ -715,12 +713,11 @@
 }
 
 /*static*/ void CaptureSequencer::shutterNotifyLocked(const Parameters &params,
-            const sp<Camera2Client>& client, int msgType) {
+            const sp<Camera2Client>& client) {
     ATRACE_CALL();
 
     if (params.state == Parameters::STILL_CAPTURE
-        && params.playShutterSound
-        && (msgType & CAMERA_MSG_SHUTTER)) {
+        && params.playShutterSound) {
         client->getCameraService()->playSound(CameraService::SOUND_SHUTTER);
     }
 
diff --git a/services/camera/libcameraservice/api1/client2/CaptureSequencer.h b/services/camera/libcameraservice/api1/client2/CaptureSequencer.h
index f2e3750..c23b12d 100644
--- a/services/camera/libcameraservice/api1/client2/CaptureSequencer.h
+++ b/services/camera/libcameraservice/api1/client2/CaptureSequencer.h
@@ -51,7 +51,7 @@
     void setZslProcessor(const wp<ZslProcessor>& processor);
 
     // Begin still image capture
-    status_t startCapture(int msgType);
+    status_t startCapture();
 
     // Wait until current image capture completes; returns immediately if no
     // capture is active. Returns TIMED_OUT if capture does not complete during
@@ -145,7 +145,6 @@
     bool mAeInPrecapture;
 
     int32_t mCaptureId;
-    int mMsgType;
 
     // Main internal methods
 
@@ -172,7 +171,7 @@
 
     // Emit Shutter/Raw callback to java, and maybe play a shutter sound
     static void shutterNotifyLocked(const Parameters &params,
-            const sp<Camera2Client>& client, int msgType);
+            const sp<Camera2Client>& client);
 };
 
 }; // namespace camera2
diff --git a/services/camera/libcameraservice/common/Camera2ClientBase.cpp b/services/camera/libcameraservice/common/Camera2ClientBase.cpp
index ce006a7..aeea473 100644
--- a/services/camera/libcameraservice/common/Camera2ClientBase.cpp
+++ b/services/camera/libcameraservice/common/Camera2ClientBase.cpp
@@ -57,13 +57,13 @@
                 cameraId, api1CameraId, cameraFacing, clientPid, clientUid, servicePid),
         mSharedCameraCallbacks(remoteCallback),
         mDeviceVersion(cameraService->getDeviceVersion(TClientBase::mCameraIdStr)),
+        mDevice(new Camera3Device(cameraId)),
         mDeviceActive(false), mApi1CameraId(api1CameraId)
 {
     ALOGI("Camera %s: Opened. Client: %s (PID %d, UID %d)", cameraId.string(),
             String8(clientPackageName).string(), clientPid, clientUid);
 
     mInitialClientPid = clientPid;
-    mDevice = new Camera3Device(cameraId);
     LOG_ALWAYS_FATAL_IF(mDevice == 0, "Device should never be NULL here.");
 }
 
@@ -206,8 +206,6 @@
     if (mDevice == 0) return;
     mDevice->disconnect();
 
-    mDevice.clear();
-
     ALOGV("Camera %s: Detach complete", TClientBase::mCameraIdStr.string());
 }
 
diff --git a/services/camera/libcameraservice/common/Camera2ClientBase.h b/services/camera/libcameraservice/common/Camera2ClientBase.h
index e74fbdf..6693847 100644
--- a/services/camera/libcameraservice/common/Camera2ClientBase.h
+++ b/services/camera/libcameraservice/common/Camera2ClientBase.h
@@ -130,7 +130,10 @@
     /** CameraDeviceBase instance wrapping HAL3+ entry */
 
     const int mDeviceVersion;
-    sp<CameraDeviceBase>  mDevice;
+
+    // Set to const to avoid mDevice being updated (update of sp<> is racy) during
+    // dumpDevice (which is important to be lock free for debugging purpose)
+    const sp<CameraDeviceBase>  mDevice;
 
     /** Utility members */
 
diff --git a/services/camera/libcameraservice/device3/Camera3Device.cpp b/services/camera/libcameraservice/device3/Camera3Device.cpp
index 491ed72..7656407 100644
--- a/services/camera/libcameraservice/device3/Camera3Device.cpp
+++ b/services/camera/libcameraservice/device3/Camera3Device.cpp
@@ -90,7 +90,7 @@
 {
     ATRACE_CALL();
     ALOGV("%s: Tearing down for camera id %s", __FUNCTION__, mId.string());
-    disconnect();
+    disconnectImpl();
 }
 
 const String8& Camera3Device::getId() const {
@@ -275,6 +275,10 @@
 }
 
 status_t Camera3Device::disconnect() {
+    return disconnectImpl();
+}
+
+status_t Camera3Device::disconnectImpl() {
     ATRACE_CALL();
     Mutex::Autolock il(mInterfaceLock);
     Mutex::Autolock stLock(mTrackerLock);
@@ -2738,13 +2742,13 @@
 status_t Camera3Device::registerInFlight(uint32_t frameNumber,
         int32_t numBuffers, CaptureResultExtras resultExtras, bool hasInput,
         bool hasAppCallback, nsecs_t maxExpectedDuration,
-        std::set<String8>& physicalCameraIds) {
+        std::set<String8>& physicalCameraIds, bool isStillCapture) {
     ATRACE_CALL();
     Mutex::Autolock l(mInFlightLock);
 
     ssize_t res;
     res = mInFlightMap.add(frameNumber, InFlightRequest(numBuffers, resultExtras, hasInput,
-            hasAppCallback, maxExpectedDuration, physicalCameraIds));
+            hasAppCallback, maxExpectedDuration, physicalCameraIds, isStillCapture));
     if (res < 0) return res;
 
     if (mInFlightMap.size() == 1) {
@@ -2810,6 +2814,10 @@
     if (request.numBuffersLeft == 0 &&
             (request.skipResultMetadata ||
             (request.haveResultMetadata && shutterTimestamp != 0))) {
+        if (request.stillCapture) {
+            ATRACE_ASYNC_END("still capture", frameNumber);
+        }
+
         ATRACE_ASYNC_END("frame capture", frameNumber);
 
         // Sanity check - if sensor timestamp matches shutter timestamp in the
@@ -4939,12 +4947,21 @@
         if (batchedRequest && i != mNextRequests.size()-1) {
             hasCallback = false;
         }
+        bool isStillCapture = false;
+        if (!mNextRequests[0].captureRequest->mSettingsList.begin()->metadata.isEmpty()) {
+            camera_metadata_ro_entry_t e = camera_metadata_ro_entry_t();
+            find_camera_metadata_ro_entry(halRequest->settings, ANDROID_CONTROL_CAPTURE_INTENT, &e);
+            if ((e.count > 0) && (e.data.u8[0] == ANDROID_CONTROL_CAPTURE_INTENT_STILL_CAPTURE)) {
+                isStillCapture = true;
+                ATRACE_ASYNC_BEGIN("still capture", mNextRequests[i].halRequest.frame_number);
+            }
+        }
         res = parent->registerInFlight(halRequest->frame_number,
                 totalNumBuffers, captureRequest->mResultExtras,
                 /*hasInput*/halRequest->input_buffer != NULL,
                 hasCallback,
                 calculateMaxExpectedDuration(halRequest->settings),
-                requestedPhysicalCameras);
+                requestedPhysicalCameras, isStillCapture);
         ALOGVV("%s: registered in flight requestId = %" PRId32 ", frameNumber = %" PRId64
                ", burstId = %" PRId32 ".",
                 __FUNCTION__,
diff --git a/services/camera/libcameraservice/device3/Camera3Device.h b/services/camera/libcameraservice/device3/Camera3Device.h
index 96212ab..85f9614 100644
--- a/services/camera/libcameraservice/device3/Camera3Device.h
+++ b/services/camera/libcameraservice/device3/Camera3Device.h
@@ -210,6 +210,8 @@
 
   private:
 
+    status_t disconnectImpl();
+
     // internal typedefs
     using RequestMetadataQueue = hardware::MessageQueue<uint8_t, hardware::kSynchronizedReadWrite>;
     using ResultMetadataQueue  = hardware::MessageQueue<uint8_t, hardware::kSynchronizedReadWrite>;
@@ -994,6 +996,9 @@
         // Map of physicalCameraId <-> Metadata
         std::vector<PhysicalCaptureResultInfo> physicalMetadatas;
 
+        // Indicates a still capture request.
+        bool stillCapture;
+
         // Default constructor needed by KeyedVector
         InFlightRequest() :
                 shutterTimestamp(0),
@@ -1004,12 +1009,13 @@
                 hasInputBuffer(false),
                 hasCallback(true),
                 maxExpectedDuration(kDefaultExpectedDuration),
-                skipResultMetadata(false) {
+                skipResultMetadata(false),
+                stillCapture(false) {
         }
 
         InFlightRequest(int numBuffers, CaptureResultExtras extras, bool hasInput,
                 bool hasAppCallback, nsecs_t maxDuration,
-                const std::set<String8>& physicalCameraIdSet) :
+                const std::set<String8>& physicalCameraIdSet, bool isStillCapture) :
                 shutterTimestamp(0),
                 sensorTimestamp(0),
                 requestStatus(OK),
@@ -1020,7 +1026,8 @@
                 hasCallback(hasAppCallback),
                 maxExpectedDuration(maxDuration),
                 skipResultMetadata(false),
-                physicalCameraIds(physicalCameraIdSet) {
+                physicalCameraIds(physicalCameraIdSet),
+                stillCapture(isStillCapture) {
         }
     };
 
@@ -1034,10 +1041,10 @@
     nsecs_t                mExpectedInflightDuration = 0;
     int                    mInFlightStatusId;
 
-
     status_t registerInFlight(uint32_t frameNumber,
             int32_t numBuffers, CaptureResultExtras resultExtras, bool hasInput,
-            bool callback, nsecs_t maxExpectedDuration, std::set<String8>& physicalCameraIds);
+            bool callback, nsecs_t maxExpectedDuration, std::set<String8>& physicalCameraIds,
+            bool isStillCapture);
 
     /**
      * Returns the maximum expected time it'll take for all currently in-flight
diff --git a/services/camera/libcameraservice/device3/DistortionMapper.cpp b/services/camera/libcameraservice/device3/DistortionMapper.cpp
index 4dafefd..ae7af8e 100644
--- a/services/camera/libcameraservice/device3/DistortionMapper.cpp
+++ b/services/camera/libcameraservice/device3/DistortionMapper.cpp
@@ -312,8 +312,8 @@
         int32_t coords[4] = {
             rects[i],
             rects[i + 1],
-            rects[i] + rects[i + 2],
-            rects[i + 1] + rects[i + 3]
+            rects[i] + rects[i + 2] - 1,
+            rects[i + 1] + rects[i + 3] - 1
         };
 
         mapRawToCorrected(coords, 2, clamp, simple);
@@ -321,8 +321,8 @@
         // 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];
+        rects[i + 2] = coords[2] - coords[0] + 1;
+        rects[i + 3] = coords[3] - coords[1] + 1;
     }
 
     return OK;
@@ -400,8 +400,8 @@
         int32_t coords[4] = {
             rects[i],
             rects[i + 1],
-            rects[i] + rects[i + 2],
-            rects[i + 1] + rects[i + 3]
+            rects[i] + rects[i + 2] - 1,
+            rects[i + 1] + rects[i + 3] - 1
         };
 
         mapCorrectedToRaw(coords, 2, clamp, simple);
@@ -409,8 +409,8 @@
         // 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];
+        rects[i + 2] = coords[2] - coords[0] + 1;
+        rects[i + 3] = coords[3] - coords[1] + 1;
     }
 
     return OK;
diff --git a/services/camera/libcameraservice/tests/Android.mk b/services/camera/libcameraservice/tests/Android.mk
index f77069c..8d80ff1 100644
--- a/services/camera/libcameraservice/tests/Android.mk
+++ b/services/camera/libcameraservice/tests/Android.mk
@@ -38,6 +38,7 @@
 LOCAL_CFLAGS += -Wall -Wextra -Werror
 
 LOCAL_MODULE:= cameraservice_test
+LOCAL_COMPATIBILITY_SUITE := device-tests
 LOCAL_MODULE_TAGS := tests
 
 include $(BUILD_NATIVE_TEST)
diff --git a/services/camera/libcameraservice/tests/CameraProviderManagerTest.cpp b/services/camera/libcameraservice/tests/CameraProviderManagerTest.cpp
index ef93d9a..0086c6c 100644
--- a/services/camera/libcameraservice/tests/CameraProviderManagerTest.cpp
+++ b/services/camera/libcameraservice/tests/CameraProviderManagerTest.cpp
@@ -163,7 +163,7 @@
         mTestCameraProvider = provider;
     }
 
-    std::string mLastRequestedServiceName;
+    std::vector<std::string> mLastRequestedServiceNames;
 
     virtual ~TestInteractionProxy() {}
 
@@ -177,7 +177,7 @@
 
     virtual sp<hardware::camera::provider::V2_4::ICameraProvider> getService(
             const std::string &serviceName) override {
-        mLastRequestedServiceName = serviceName;
+        mLastRequestedServiceNames.push_back(serviceName);
         return mTestCameraProvider;
     }
 
@@ -210,9 +210,18 @@
     res = providerManager->initialize(statusListener, &serviceProxy);
     ASSERT_EQ(res, OK) << "Unable to initialize provider manager";
 
-    hardware::hidl_string legacyInstanceName = "legacy/0";
-    ASSERT_EQ(serviceProxy.mLastRequestedServiceName, legacyInstanceName) <<
+    std::string legacyInstanceName = "legacy/0";
+    std::string externalInstanceName = "external/0";
+    bool gotLegacy = false;
+    bool gotExternal = false;
+    for (auto& serviceName : serviceProxy.mLastRequestedServiceNames) {
+        if (serviceName == legacyInstanceName) gotLegacy = true;
+        if (serviceName == externalInstanceName) gotExternal = true;
+    }
+    ASSERT_TRUE(gotLegacy) <<
             "Legacy instance not requested from service manager";
+    ASSERT_TRUE(gotExternal) <<
+            "External instance not requested from service manager";
 
     hardware::hidl_string testProviderFqInterfaceName =
             "android.hardware.camera.provider@2.4::ICameraProvider";
@@ -221,7 +230,7 @@
             testProviderFqInterfaceName,
             testProviderInstanceName, false);
 
-    ASSERT_EQ(serviceProxy.mLastRequestedServiceName, testProviderInstanceName) <<
+    ASSERT_EQ(serviceProxy.mLastRequestedServiceNames.back(), testProviderInstanceName) <<
             "Incorrect instance requested from service manager";
 }
 
@@ -255,7 +264,7 @@
             "android.hardware.camera.provider@2.4::ICameraProvider";
     serviceProxy.mManagerNotificationInterface->onRegistration(
             testProviderFqInterfaceName, testProviderInstanceName, false);
-    ASSERT_EQ(serviceProxy.mLastRequestedServiceName, testProviderInstanceName) <<
+    ASSERT_EQ(serviceProxy.mLastRequestedServiceNames.back(), testProviderInstanceName) <<
             "Incorrect instance requested from service manager";
 
     hardware::hidl_string sectionNameSecond = "SecondVendorTestSection";
@@ -273,7 +282,7 @@
     hardware::hidl_string testProviderSecondInstanceName = "test2/0";
     serviceProxy.mManagerNotificationInterface->onRegistration(
             testProviderFqInterfaceName, testProviderSecondInstanceName, false);
-    ASSERT_EQ(serviceProxy.mLastRequestedServiceName,
+    ASSERT_EQ(serviceProxy.mLastRequestedServiceNames.back(),
               testProviderSecondInstanceName) <<
             "Incorrect instance requested from service manager";
 
diff --git a/services/camera/libcameraservice/tests/DistortionMapperTest.cpp b/services/camera/libcameraservice/tests/DistortionMapperTest.cpp
index 2a689c6..54935c9 100644
--- a/services/camera/libcameraservice/tests/DistortionMapperTest.cpp
+++ b/services/camera/libcameraservice/tests/DistortionMapperTest.cpp
@@ -167,6 +167,30 @@
     }
 }
 
+TEST(DistortionMapperTest, ClampConsistency) {
+    status_t res;
+
+    std::array<int32_t, 4> activeArray = {0, 0, 4032, 3024};
+    DistortionMapper m;
+    setupTestMapper(&m, identityDistortion, testICal, /*activeArray*/ activeArray.data(),
+            /*preCorrectionActiveArray*/ activeArray.data());
+
+    auto rectsOrig = activeArray;
+    res = m.mapCorrectedRectToRaw(activeArray.data(), 1, /*clamp*/true, /*simple*/ true);
+    ASSERT_EQ(res, OK);
+
+    for (size_t i = 0; i < activeArray.size(); i++) {
+        EXPECT_EQ(activeArray[i], rectsOrig[i]);
+    }
+
+    res = m.mapRawRectToCorrected(activeArray.data(), 1, /*clamp*/true, /*simple*/ true);
+    ASSERT_EQ(res, OK);
+
+    for (size_t i = 0; i < activeArray.size(); i++) {
+        EXPECT_EQ(activeArray[i], rectsOrig[i]);
+    }
+}
+
 TEST(DistortionMapperTest, SimpleTransform) {
     status_t res;
 
diff --git a/services/camera/libcameraservice/utils/TagMonitor.cpp b/services/camera/libcameraservice/utils/TagMonitor.cpp
index c0a353f..f4c49ec 100644
--- a/services/camera/libcameraservice/utils/TagMonitor.cpp
+++ b/services/camera/libcameraservice/utils/TagMonitor.cpp
@@ -49,7 +49,8 @@
     std::lock_guard<std::mutex> lock(mMonitorMutex);
 
     // Expand shorthands
-    if (ssize_t idx = tagNames.find("3a") != -1) {
+    ssize_t idx = tagNames.find("3a");
+    if (idx != -1) {
         ssize_t end = tagNames.find(",", idx);
         char* start = tagNames.lockBuffer(tagNames.size());
         start[idx] = '\0';
diff --git a/services/mediaextractor/MediaExtractorService.cpp b/services/mediaextractor/MediaExtractorService.cpp
index f0f44f5..f4d8b43 100644
--- a/services/mediaextractor/MediaExtractorService.cpp
+++ b/services/mediaextractor/MediaExtractorService.cpp
@@ -21,7 +21,6 @@
 #include <utils/Vector.h>
 
 #include <media/DataSource.h>
-#include <media/MediaExtractor.h>
 #include <media/stagefright/DataSourceFactory.h>
 #include <media/stagefright/InterfaceUtils.h>
 #include <media/stagefright/MediaExtractorFactory.h>
diff --git a/services/medialog/MediaLogService.cpp b/services/medialog/MediaLogService.cpp
index e58dff7..b23832e 100644
--- a/services/medialog/MediaLogService.cpp
+++ b/services/medialog/MediaLogService.cpp
@@ -58,11 +58,11 @@
             shared->size() < NBLog::Timeline::sharedSize(size)) {
         return;
     }
-    sp<NBLog::Reader> reader(new NBLog::Reader(shared, size));
-    NBLog::NamedReader namedReader(reader, name);
+    sp<NBLog::Reader> reader(new NBLog::Reader(shared, size, name)); // Reader handled by merger
+    sp<NBLog::DumpReader> dumpReader(new NBLog::DumpReader(shared, size, name)); // for dumpsys
     Mutex::Autolock _l(mLock);
-    mNamedReaders.add(namedReader);
-    mMerger.addReader(namedReader);
+    mDumpReaders.add(dumpReader);
+    mMerger.addReader(reader);
 }
 
 void MediaLogService::unregisterWriter(const sp<IMemory>& shared)
@@ -71,9 +71,10 @@
         return;
     }
     Mutex::Autolock _l(mLock);
-    for (size_t i = 0; i < mNamedReaders.size(); ) {
-        if (mNamedReaders[i].reader()->isIMemory(shared)) {
-            mNamedReaders.removeAt(i);
+    for (size_t i = 0; i < mDumpReaders.size(); ) {
+        if (mDumpReaders[i]->isIMemory(shared)) {
+            mDumpReaders.removeAt(i);
+            // TODO mMerger.removeReaders(shared)
         } else {
             i++;
         }
@@ -106,7 +107,7 @@
     if (args.size() > 0) {
         const String8 arg0(args[0]);
         if (!strcmp(arg0.string(), "-r")) {
-            // needed because mNamedReaders is protected by mLock
+            // needed because mReaders is protected by mLock
             bool locked = dumpTryLock(mLock);
 
             // failed to lock - MediaLogService is probably deadlocked
@@ -121,11 +122,12 @@
                 return NO_ERROR;
             }
 
-            for (const auto& namedReader : mNamedReaders) {
+            for (const auto &dumpReader : mDumpReaders) {
                 if (fd >= 0) {
-                    dprintf(fd, "\n%s:\n", namedReader.name());
+                    dprintf(fd, "\n%s:\n", dumpReader->name().c_str());
+                    dumpReader->dump(fd, 0 /*indent*/);
                 } else {
-                    ALOGI("%s:", namedReader.name());
+                    ALOGI("%s:", dumpReader->name().c_str());
                 }
             }
             mLock.unlock();
diff --git a/services/medialog/MediaLogService.h b/services/medialog/MediaLogService.h
index c945d1f..a1572f9 100644
--- a/services/medialog/MediaLogService.h
+++ b/services/medialog/MediaLogService.h
@@ -55,7 +55,7 @@
 
     Mutex               mLock;
 
-    Vector<NBLog::NamedReader> mNamedReaders;   // protected by mLock
+    Vector<sp<NBLog::DumpReader>> mDumpReaders;   // protected by mLock
 
     // FIXME Need comments on all of these, especially about locking
     NBLog::Shared *mMergerShared;
diff --git a/services/oboeservice/AAudioServiceEndpointMMAP.cpp b/services/oboeservice/AAudioServiceEndpointMMAP.cpp
index f9e21fb..f30f9bb 100644
--- a/services/oboeservice/AAudioServiceEndpointMMAP.cpp
+++ b/services/oboeservice/AAudioServiceEndpointMMAP.cpp
@@ -189,6 +189,7 @@
         minSizeFrames = AAUDIO_BUFFER_CAPACITY_MIN;
     }
     status = mMmapStream->createMmapBuffer(minSizeFrames, &mMmapBufferinfo);
+    bool isBufferShareable = mMmapBufferinfo.flags & AUDIO_MMAP_APPLICATION_SHAREABLE;
     if (status != OK) {
         ALOGE("%s() - createMmapBuffer() failed with status %d %s",
               __func__, status, strerror(-status));
@@ -198,18 +199,13 @@
         ALOGD("%s() createMmapBuffer() returned = %d, buffer_size = %d, burst_size %d"
                       ", Sharable FD: %s",
               __func__, status,
-              abs(mMmapBufferinfo.buffer_size_frames),
+              mMmapBufferinfo.buffer_size_frames,
               mMmapBufferinfo.burst_size_frames,
-              mMmapBufferinfo.buffer_size_frames < 0 ? "Yes" : "No");
+              isBufferShareable ? "Yes" : "No");
     }
 
     setBufferCapacity(mMmapBufferinfo.buffer_size_frames);
-    // The audio HAL indicates if the shared memory fd can be shared outside of audioserver
-    // by returning a negative buffer size
-    if (getBufferCapacity() < 0) {
-        // Exclusive mode can be used by client or service.
-        setBufferCapacity(-getBufferCapacity());
-    } else {
+    if (!isBufferShareable) {
         // Exclusive mode can only be used by the service because the FD cannot be shared.
         uid_t audioServiceUid = getuid();
         if ((mMmapClient.clientUid != audioServiceUid) &&