Merge "Camera: Trace still capture requests"
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/include/camera/NdkCameraMetadataTags.h b/camera/ndk/include/camera/NdkCameraMetadataTags.h
index 0501006..1dfa4f7 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
      */
diff --git a/cmds/stagefright/stagefright.cpp b/cmds/stagefright/stagefright.cpp
index d41d3fd..bddf945 100644
--- a/cmds/stagefright/stagefright.cpp
+++ b/cmds/stagefright/stagefright.cpp
@@ -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/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/mp4/MPEG4Extractor.cpp b/media/extractors/mp4/MPEG4Extractor.cpp
index 8412812..fe9f99c 100644
--- a/media/extractors/mp4/MPEG4Extractor.cpp
+++ b/media/extractors/mp4/MPEG4Extractor.cpp
@@ -313,6 +313,9 @@
         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;
 
@@ -2438,13 +2441,19 @@
         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 +2527,43 @@
     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 +2602,185 @@
         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 +2835,6 @@
     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);
@@ -5231,9 +5383,13 @@
     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) {
diff --git a/media/extractors/mp4/MPEG4Extractor.h b/media/extractors/mp4/MPEG4Extractor.h
index ed70aa7..a4a5684 100644
--- a/media/extractors/mp4/MPEG4Extractor.h
+++ b/media/extractors/mp4/MPEG4Extractor.h
@@ -139,9 +139,10 @@
 
     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 &);
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..0641b6e 100644
--- a/media/libaudioclient/AudioEffect.cpp
+++ b/media/libaudioclient/AudioEffect.cpp
@@ -430,14 +430,15 @@
 }
 
 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 +447,55 @@
     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::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::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/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..abf74f8 100644
--- a/media/libaudioclient/IAudioPolicyService.cpp
+++ b/media/libaudioclient/IAudioPolicyService.cpp
@@ -81,7 +81,9 @@
     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
 };
 
 #define MAX_ITEMS_PER_LIST 1024
@@ -866,6 +868,42 @@
         }
         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());
+    }
+
 };
 
 IMPLEMENT_META_INTERFACE(AudioPolicyService, "android.media.IAudioPolicyService");
@@ -1561,6 +1599,43 @@
             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;
+        }
+
         default:
             return BBinder::onTransact(code, data, reply, flags);
     }
diff --git a/media/libaudioclient/include/media/AudioEffect.h b/media/libaudioclient/include/media/AudioEffect.h
index bfc068b..c97f783 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 +151,79 @@
                                               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 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 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 {
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/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..c2899f8 100644
--- a/media/libaudioclient/include/media/IAudioPolicyService.h
+++ b/media/libaudioclient/include/media/IAudioPolicyService.h
@@ -109,6 +109,13 @@
     virtual status_t queryDefaultPreProcessing(audio_session_t audioSession,
                                               effect_descriptor_t *descriptors,
                                               uint32_t *count) = 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 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/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/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/libmediaplayer2/include/mediaplayer2/MediaPlayer2Types.h b/media/libmediaplayer2/include/mediaplayer2/MediaPlayer2Types.h
index 2fb5a2c..bc84729 100644
--- a/media/libmediaplayer2/include/mediaplayer2/MediaPlayer2Types.h
+++ b/media/libmediaplayer2/include/mediaplayer2/MediaPlayer2Types.h
@@ -96,17 +96,17 @@
 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,
 
     //1xx
     // The player just prepared a data source.
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/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/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/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/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/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/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/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/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..43566b7 100644
--- a/services/audioflinger/AudioFlinger.cpp
+++ b/services/audioflinger/AudioFlinger.cpp
@@ -58,6 +58,8 @@
 
 #include <audio_utils/primitives.h>
 
+#include <json/json.h>
+
 #include <powermanager/PowerManager.h>
 
 #include <media/IMediaLogService.h>
@@ -440,8 +442,11 @@
         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;
         }
 
@@ -556,34 +561,30 @@
     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)
@@ -2949,16 +2950,74 @@
 }
 
 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 +3071,15 @@
     }
 
     {
-        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..e9e6e94 100644
--- a/services/audioflinger/AudioFlinger.h
+++ b/services/audioflinger/AudioFlinger.h
@@ -79,6 +79,7 @@
 
 #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 +115,7 @@
     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 +209,8 @@
     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(
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/PatchPanel.cpp b/services/audioflinger/PatchPanel.cpp
index f044fb7..ada8572 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(
diff --git a/services/audioflinger/Threads.cpp b/services/audioflinger/Threads.cpp
index 6c7179e..cd585f5 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
@@ -1763,9 +1764,9 @@
     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)
@@ -5141,14 +5142,20 @@
     }
 }
 
-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
@@ -6700,6 +6707,14 @@
                 }
                 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 +6740,7 @@
 
         // 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,
diff --git a/services/audioflinger/Threads.h b/services/audioflinger/Threads.h
index dc23717..2ab0bee 100644
--- a/services/audioflinger/Threads.h
+++ b/services/audioflinger/Threads.h
@@ -662,7 +662,7 @@
 
                 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();
@@ -1108,7 +1108,7 @@
     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 +1530,8 @@
 
             void        updateMetadata_l() override;
 
+            bool        fastTrackAvailable() const { return mFastTrackAvail; }
+
 private:
             // Enter standby if not already in standby, and set mStandby flag
             void    standbyIfNotAlreadyInStandby();
diff --git a/services/audiopolicy/managerdefault/AudioPolicyManager.cpp b/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
index 92f6c79..96079cc 100644
--- a/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
+++ b/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
@@ -4761,6 +4761,7 @@
 
     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 +4772,12 @@
 
     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 +5820,7 @@
         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..2858aad 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 +318,102 @@
     return status;
 }
 
+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::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..69367b1 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 +81,49 @@
                              audio_stream_type_t stream,
                              audio_session_t audioSession);
 
+    // Add the effect to the list of default effects for streams of type |stream|.
+    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 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 +146,11 @@
             }
         }
         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..3439c9b 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;
     }
@@ -859,6 +850,50 @@
             (audio_session_t)audioSession, descriptors, count);
 }
 
+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)
+{
+    if (mAudioPolicyManager == NULL) {
+        return NO_INIT;
+    }
+    if (!modifyDefaultAudioEffectsAllowed()) {
+        return PERMISSION_DENIED;
+    }
+    sp<AudioPolicyEffects>audioPolicyEffects;
+    {
+        Mutex::Autolock _l(mLock);
+        audioPolicyEffects = mAudioPolicyEffects;
+    }
+    if (audioPolicyEffects == 0) {
+        return NO_INIT;
+    }
+    return audioPolicyEffects->addStreamDefaultEffect(
+            type, opPackageName, uuid, priority, usage, id);
+}
+
+status_t AudioPolicyService::removeStreamDefaultEffect(audio_unique_id_t id)
+{
+    if (mAudioPolicyManager == NULL) {
+        return NO_INIT;
+    }
+    if (!modifyDefaultAudioEffectsAllowed()) {
+        return PERMISSION_DENIED;
+    }
+    sp<AudioPolicyEffects>audioPolicyEffects;
+    {
+        Mutex::Autolock _l(mLock);
+        audioPolicyEffects = mAudioPolicyEffects;
+    }
+    if (audioPolicyEffects == 0) {
+        return NO_INIT;
+    }
+    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..44c0347 100644
--- a/services/audiopolicy/service/AudioPolicyService.h
+++ b/services/audiopolicy/service/AudioPolicyService.h
@@ -126,6 +126,14 @@
     virtual status_t queryDefaultPreProcessing(audio_session_t audioSession,
                                               effect_descriptor_t *descriptors,
                                               uint32_t *count);
+    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 removeStreamDefaultEffect(audio_unique_id_t id);
+
     virtual     status_t    onTransact(
                                 uint32_t code,
                                 const Parcel& data,
diff --git a/services/camera/libcameraservice/CameraService.cpp b/services/camera/libcameraservice/CameraService.cpp
index c41de82..b85dd51 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;
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/api1/Camera2Client.cpp b/services/camera/libcameraservice/api1/Camera2Client.cpp
index c8b3c2f..261cdbf 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) {
@@ -1443,7 +1440,7 @@
     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 +1539,7 @@
     // 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 +1659,6 @@
         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/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/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/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) &&