Merge "audio: add device definitions for BLE Audio"
diff --git a/media/codec2/components/gav1/C2SoftGav1Dec.cpp b/media/codec2/components/gav1/C2SoftGav1Dec.cpp
index 8415b30..dfed76c 100644
--- a/media/codec2/components/gav1/C2SoftGav1Dec.cpp
+++ b/media/codec2/components/gav1/C2SoftGav1Dec.cpp
@@ -446,15 +446,6 @@
       return;
     }
 
-  } else {
-    const Libgav1StatusCode status = mCodecCtx->SignalEOS();
-    if (status != kLibgav1StatusOk) {
-      ALOGE("Failed to flush av1 decoder. status: %d.", status);
-      work->result = C2_CORRUPTED;
-      work->workletsProcessed = 1u;
-      mSignalledError = true;
-      return;
-    }
   }
 
   (void)outputBuffer(pool, work);
diff --git a/media/libaaudio/src/client/AudioEndpoint.cpp b/media/libaaudio/src/client/AudioEndpoint.cpp
index 06f66d3..0a19d17 100644
--- a/media/libaaudio/src/client/AudioEndpoint.cpp
+++ b/media/libaaudio/src/client/AudioEndpoint.cpp
@@ -137,7 +137,7 @@
         return AAUDIO_ERROR_INTERNAL;
     }
 
-    mUpCommandQueue = std::make_unique<FifoBuffer>(
+    mUpCommandQueue = std::make_unique<FifoBufferIndirect>(
             descriptor->bytesPerFrame,
             descriptor->capacityInFrames,
             descriptor->readCounterAddress,
@@ -166,7 +166,7 @@
                                   ? &mDataWriteCounter
                                   : descriptor->writeCounterAddress;
 
-    mDataQueue = std::make_unique<FifoBuffer>(
+    mDataQueue = std::make_unique<FifoBufferIndirect>(
             descriptor->bytesPerFrame,
             descriptor->capacityInFrames,
             readCounterAddress,
diff --git a/media/libaaudio/src/client/AudioEndpoint.h b/media/libaaudio/src/client/AudioEndpoint.h
index 484d917..4c8d60f 100644
--- a/media/libaaudio/src/client/AudioEndpoint.h
+++ b/media/libaaudio/src/client/AudioEndpoint.h
@@ -93,8 +93,8 @@
     void dump() const;
 
 private:
-    std::unique_ptr<android::FifoBuffer> mUpCommandQueue;
-    std::unique_ptr<android::FifoBuffer> mDataQueue;
+    std::unique_ptr<android::FifoBufferIndirect> mUpCommandQueue;
+    std::unique_ptr<android::FifoBufferIndirect> mDataQueue;
     bool                    mFreeRunning;
     android::fifo_counter_t mDataReadCounter; // only used if free-running
     android::fifo_counter_t mDataWriteCounter; // only used if free-running
diff --git a/media/libaaudio/src/fifo/FifoBuffer.cpp b/media/libaaudio/src/fifo/FifoBuffer.cpp
index f5113f2..5c11882 100644
--- a/media/libaaudio/src/fifo/FifoBuffer.cpp
+++ b/media/libaaudio/src/fifo/FifoBuffer.cpp
@@ -31,40 +31,37 @@
 #include "FifoBuffer.h"
 
 using android::FifoBuffer;
+using android::FifoBufferAllocated;
+using android::FifoBufferIndirect;
 using android::fifo_frames_t;
 
-FifoBuffer::FifoBuffer(int32_t bytesPerFrame, fifo_frames_t capacityInFrames)
-        : mBytesPerFrame(bytesPerFrame)
+FifoBuffer::FifoBuffer(int32_t bytesPerFrame)
+        : mBytesPerFrame(bytesPerFrame) {}
+
+FifoBufferAllocated::FifoBufferAllocated(int32_t bytesPerFrame, fifo_frames_t capacityInFrames)
+        : FifoBuffer(bytesPerFrame)
 {
     mFifo = std::make_unique<FifoController>(capacityInFrames, capacityInFrames);
     // allocate buffer
     int32_t bytesPerBuffer = bytesPerFrame * capacityInFrames;
-    mStorage = new uint8_t[bytesPerBuffer];
-    mStorageOwned = true;
+    mInternalStorage = std::make_unique<uint8_t[]>(bytesPerBuffer);
     ALOGV("%s() capacityInFrames = %d, bytesPerFrame = %d",
           __func__, capacityInFrames, bytesPerFrame);
 }
 
-FifoBuffer::FifoBuffer( int32_t   bytesPerFrame,
+FifoBufferIndirect::FifoBufferIndirect( int32_t   bytesPerFrame,
                         fifo_frames_t   capacityInFrames,
-                        fifo_counter_t *  readIndexAddress,
-                        fifo_counter_t *  writeIndexAddress,
+                        fifo_counter_t *readIndexAddress,
+                        fifo_counter_t *writeIndexAddress,
                         void *  dataStorageAddress
                         )
-        : mBytesPerFrame(bytesPerFrame)
-        , mStorage(static_cast<uint8_t *>(dataStorageAddress))
+        : FifoBuffer(bytesPerFrame)
+        , mExternalStorage(static_cast<uint8_t *>(dataStorageAddress))
 {
     mFifo = std::make_unique<FifoControllerIndirect>(capacityInFrames,
                                        capacityInFrames,
                                        readIndexAddress,
                                        writeIndexAddress);
-    mStorageOwned = false;
-}
-
-FifoBuffer::~FifoBuffer() {
-    if (mStorageOwned) {
-        delete[] mStorage;
-    }
 }
 
 int32_t FifoBuffer::convertFramesToBytes(fifo_frames_t frames) {
@@ -76,15 +73,16 @@
                                     int32_t startIndex) {
     wrappingBuffer->data[1] = nullptr;
     wrappingBuffer->numFrames[1] = 0;
+    uint8_t *storage = getStorage();
     if (framesAvailable > 0) {
         fifo_frames_t capacity = mFifo->getCapacity();
-        uint8_t *source = &mStorage[convertFramesToBytes(startIndex)];
+        uint8_t *source = &storage[convertFramesToBytes(startIndex)];
         // Does the available data cross the end of the FIFO?
         if ((startIndex + framesAvailable) > capacity) {
             wrappingBuffer->data[0] = source;
             fifo_frames_t firstFrames = capacity - startIndex;
             wrappingBuffer->numFrames[0] = firstFrames;
-            wrappingBuffer->data[1] = &mStorage[0];
+            wrappingBuffer->data[1] = &storage[0];
             wrappingBuffer->numFrames[1] = framesAvailable - firstFrames;
         } else {
             wrappingBuffer->data[0] = source;
@@ -191,6 +189,6 @@
 void FifoBuffer::eraseMemory() {
     int32_t numBytes = convertFramesToBytes(getBufferCapacityInFrames());
     if (numBytes > 0) {
-        memset(mStorage, 0, (size_t) numBytes);
+        memset(getStorage(), 0, (size_t) numBytes);
     }
 }
diff --git a/media/libaaudio/src/fifo/FifoBuffer.h b/media/libaaudio/src/fifo/FifoBuffer.h
index 0d188c4..37548f0 100644
--- a/media/libaaudio/src/fifo/FifoBuffer.h
+++ b/media/libaaudio/src/fifo/FifoBuffer.h
@@ -38,15 +38,9 @@
 
 class FifoBuffer {
 public:
-    FifoBuffer(int32_t bytesPerFrame, fifo_frames_t capacityInFrames);
+    FifoBuffer(int32_t bytesPerFrame);
 
-    FifoBuffer(int32_t bytesPerFrame,
-               fifo_frames_t capacityInFrames,
-               fifo_counter_t *readCounterAddress,
-               fifo_counter_t *writeCounterAddress,
-               void *dataStorageAddress);
-
-    ~FifoBuffer();
+    virtual ~FifoBuffer() = default;
 
     int32_t convertFramesToBytes(fifo_frames_t frames);
 
@@ -121,19 +115,53 @@
      */
     void eraseMemory();
 
-private:
+protected:
+
+    virtual uint8_t *getStorage() const = 0;
 
     void fillWrappingBuffer(WrappingBuffer *wrappingBuffer,
                             int32_t framesAvailable, int32_t startIndex);
 
     const int32_t             mBytesPerFrame;
-    // We do not use a std::unique_ptr for mStorage because it is often a pointer to
-    // memory shared between processes and cannot be deleted trivially.
-    uint8_t                  *mStorage = nullptr;
-    bool                      mStorageOwned = false; // did this object allocate the storage?
     std::unique_ptr<FifoControllerBase> mFifo{};
 };
 
+// Define two subclasses to handle the two ways that storage is allocated.
+
+// Allocate storage internally.
+class FifoBufferAllocated : public FifoBuffer {
+public:
+    FifoBufferAllocated(int32_t bytesPerFrame, fifo_frames_t capacityInFrames);
+
+private:
+
+    uint8_t *getStorage() const override {
+        return mInternalStorage.get();
+    };
+
+    std::unique_ptr<uint8_t[]> mInternalStorage;
+};
+
+// Allocate storage externally and pass it in.
+class FifoBufferIndirect : public FifoBuffer {
+public:
+    // We use raw pointers because the memory may be
+    // in the middle of an allocated block and cannot be deleted directly.
+    FifoBufferIndirect(int32_t bytesPerFrame,
+                       fifo_frames_t capacityInFrames,
+                       fifo_counter_t* readCounterAddress,
+                       fifo_counter_t* writeCounterAddress,
+                       void* dataStorageAddress);
+
+private:
+
+    uint8_t *getStorage() const override {
+        return mExternalStorage;
+    };
+
+    uint8_t *mExternalStorage = nullptr;
+};
+
 }  // android
 
 #endif //FIFO_FIFO_BUFFER_H
diff --git a/media/libaaudio/src/fifo/FifoControllerIndirect.h b/media/libaaudio/src/fifo/FifoControllerIndirect.h
index 5832d9c..ec48e57 100644
--- a/media/libaaudio/src/fifo/FifoControllerIndirect.h
+++ b/media/libaaudio/src/fifo/FifoControllerIndirect.h
@@ -27,7 +27,7 @@
 /**
  * A FifoControllerBase with counters external to the class.
  *
- * The actual copunters may be stored in separate regions of shared memory
+ * The actual counters may be stored in separate regions of shared memory
  * with different access rights.
  */
 class FifoControllerIndirect : public FifoControllerBase {
diff --git a/media/libaaudio/tests/test_atomic_fifo.cpp b/media/libaaudio/tests/test_atomic_fifo.cpp
index 130ef43..4dbb219 100644
--- a/media/libaaudio/tests/test_atomic_fifo.cpp
+++ b/media/libaaudio/tests/test_atomic_fifo.cpp
@@ -26,6 +26,7 @@
 using android::fifo_counter_t;
 using android::FifoController;
 using android::FifoBuffer;
+using android::FifoBufferIndirect;
 using android::WrappingBuffer;
 
 TEST(test_fifo_controller, fifo_indices) {
@@ -325,7 +326,7 @@
         verifyStorageIntegrity();
     }
 
-    FifoBuffer     mFifoBuffer;
+    FifoBufferIndirect     mFifoBuffer;
     fifo_frames_t  mNextWriteIndex = 0;
     fifo_frames_t  mNextVerifyIndex = 0;
     fifo_frames_t  mThreshold;
diff --git a/media/libmediametrics/Android.bp b/media/libmediametrics/Android.bp
index 03068c7..a63b8b4 100644
--- a/media/libmediametrics/Android.bp
+++ b/media/libmediametrics/Android.bp
@@ -53,6 +53,7 @@
     visibility: [
         "//cts/tests/tests/nativemedia/mediametrics",
         "//frameworks/av:__subpackages__",
+        "//frameworks/base/apex/media/framework",
         "//frameworks/base/core/jni",
         "//frameworks/base/media/jni",
     ],
diff --git a/media/libstagefright/tests/writer/Android.bp b/media/libstagefright/tests/writer/Android.bp
index d058ed3..b5d453e 100644
--- a/media/libstagefright/tests/writer/Android.bp
+++ b/media/libstagefright/tests/writer/Android.bp
@@ -29,13 +29,14 @@
         "liblog",
         "libutils",
         "libmedia",
+        "libmediandk",
+        "libstagefright",
     ],
 
     static_libs: [
         "libstagefright_webm",
-        "libdatasource",
-        "libstagefright",
         "libstagefright_foundation",
+        "libdatasource",
         "libstagefright_esds",
         "libogg",
     ],
diff --git a/media/libstagefright/tests/writer/AndroidTest.xml b/media/libstagefright/tests/writer/AndroidTest.xml
index a21be8a..cc890fe 100644
--- a/media/libstagefright/tests/writer/AndroidTest.xml
+++ b/media/libstagefright/tests/writer/AndroidTest.xml
@@ -19,7 +19,7 @@
         <option name="cleanup" value="true" />
         <option name="push" value="writerTest->/data/local/tmp/writerTest" />
         <option name="push-file"
-            key="https://storage.googleapis.com/android_media/frameworks/av/media/libstagefright/tests/writer/WriterTestRes.zip?unzip=true"
+            key="https://storage.googleapis.com/android_media/frameworks/av/media/libstagefright/tests/writer/WriterTestRes-1.1.zip?unzip=true"
             value="/data/local/tmp/WriterTestRes/" />
     </target_preparer>
     <test class="com.android.tradefed.testtype.GTest" >
diff --git a/media/libstagefright/tests/writer/README.md b/media/libstagefright/tests/writer/README.md
index e103613..0e54ca7 100644
--- a/media/libstagefright/tests/writer/README.md
+++ b/media/libstagefright/tests/writer/README.md
@@ -19,10 +19,10 @@
 
 adb push ${OUT}/data/nativetest/writerTest/writerTest /data/local/tmp/
 
-The resource file for the tests is taken from [here](https://storage.googleapis.com/android_media/frameworks/av/media/libstagefright/tests/writer/WriterTestRes.zip).
+The resource file for the tests is taken from [here](https://storage.googleapis.com/android_media/frameworks/av/media/libstagefright/tests/writer/WriterTestRes-1.1.zip).
 Download and extract the folder. Push all the files in this folder to /data/local/tmp/ on the device.
 ```
-adb push WriterTestRes /data/local/tmp/
+adb push WriterTestRes-1.1/. /data/local/tmp/WriterTestRes/
 ```
 
 usage: writerTest -P \<path_to_res_folder\> -C <remove_output_file>
diff --git a/media/libstagefright/tests/writer/WriterTest.cpp b/media/libstagefright/tests/writer/WriterTest.cpp
index 4c0add4..4ca02b0 100644
--- a/media/libstagefright/tests/writer/WriterTest.cpp
+++ b/media/libstagefright/tests/writer/WriterTest.cpp
@@ -18,9 +18,13 @@
 #define LOG_TAG "WriterTest"
 #include <utils/Log.h>
 
+#include <binder/ProcessState.h>
+
+#include <inttypes.h>
 #include <fstream>
 #include <iostream>
 
+#include <media/NdkMediaExtractor.h>
 #include <media/stagefright/MediaDefs.h>
 #include <media/stagefright/MetaData.h>
 #include <media/stagefright/Utils.h>
@@ -39,15 +43,13 @@
 
 #define OUTPUT_FILE_NAME "/data/local/tmp/writer.out"
 
-static WriterTestEnvironment *gEnv = nullptr;
+// Stts values within 0.1ms(100us) difference are fudged to save too
+// many stts entries in MPEG4Writer.
+constexpr int32_t kMpeg4MuxToleranceTimeUs = 100;
+// Tolerance value for other writers
+constexpr int32_t kMuxToleranceTimeUs = 1;
 
-struct configFormat {
-    char mime[128];
-    int32_t width;
-    int32_t height;
-    int32_t sampleRate;
-    int32_t channelCount;
-};
+static WriterTestEnvironment *gEnv = nullptr;
 
 enum inputId {
     // audio streams
@@ -82,8 +84,8 @@
     int32_t secondParam;
     bool isAudio;
 } kInputData[] = {
-        {AAC_1, MEDIA_MIMETYPE_AUDIO_AAC, "bbb_aac_stereo_128kbps_48000hz.aac",
-         "bbb_aac_stereo_128kbps_48000hz.info", 48000, 2, true},
+        {AAC_1, MEDIA_MIMETYPE_AUDIO_AAC, "audio_aac_stereo_8kbps_11025hz.aac",
+         "audio_aac_stereo_8kbps_11025hz.info", 11025, 2, true},
         {AAC_ADTS_1, MEDIA_MIMETYPE_AUDIO_AAC_ADTS, "Mps_2_c2_fr1_Sc1_Dc2_0x03_raw.adts",
          "Mps_2_c2_fr1_Sc1_Dc2_0x03_raw.info", 48000, 2, true},
         {AMR_NB_1, MEDIA_MIMETYPE_AUDIO_AMR_NB, "sine_amrnb_1ch_12kbps_8000hz.amrnb",
@@ -94,17 +96,17 @@
          "bbb_flac_stereo_680kbps_48000hz.info", 48000, 2, true},
         {OPUS_1, MEDIA_MIMETYPE_AUDIO_OPUS, "bbb_opus_stereo_128kbps_48000hz.opus",
          "bbb_opus_stereo_128kbps_48000hz.info", 48000, 2, true},
-        {VORBIS_1, MEDIA_MIMETYPE_AUDIO_VORBIS, "bbb_vorbis_stereo_128kbps_48000hz.vorbis",
-         "bbb_vorbis_stereo_128kbps_48000hz.info", 48000, 2, true},
+        {VORBIS_1, MEDIA_MIMETYPE_AUDIO_VORBIS, "bbb_vorbis_1ch_64kbps_16kHz.vorbis",
+         "bbb_vorbis_1ch_64kbps_16kHz.info", 16000, 1, true},
 
         {AV1_1, MEDIA_MIMETYPE_VIDEO_AV1, "bbb_av1_176_144.av1", "bbb_av1_176_144.info", 176, 144,
          false},
-        {AVC_1, MEDIA_MIMETYPE_VIDEO_AVC, "bbb_avc_176x144_300kbps_60fps.h264",
-         "bbb_avc_176x144_300kbps_60fps.info", 176, 144, false},
+        {AVC_1, MEDIA_MIMETYPE_VIDEO_AVC, "bbb_avc_352x288_768kbps_30fps.avc",
+         "bbb_avc_352x288_768kbps_30fps.info", 352, 288, false},
         {H263_1, MEDIA_MIMETYPE_VIDEO_H263, "bbb_h263_352x288_300kbps_12fps.h263",
          "bbb_h263_352x288_300kbps_12fps.info", 352, 288, false},
-        {HEVC_1, MEDIA_MIMETYPE_VIDEO_HEVC, "bbb_hevc_176x144_176kbps_60fps.hevc",
-         "bbb_hevc_176x144_176kbps_60fps.info", 176, 144, false},
+        {HEVC_1, MEDIA_MIMETYPE_VIDEO_HEVC, "bbb_hevc_340x280_768kbps_30fps.hevc",
+         "bbb_hevc_340x280_768kbps_30fps.info", 340, 280, false},
         {MPEG4_1, MEDIA_MIMETYPE_VIDEO_MPEG4, "bbb_mpeg4_352x288_512kbps_30fps.m4v",
          "bbb_mpeg4_352x288_512kbps_30fps.info", 352, 288, false},
         {VP8_1, MEDIA_MIMETYPE_VIDEO_VP8, "bbb_vp8_176x144_240kbps_60fps.vp8",
@@ -164,6 +166,14 @@
 
     int32_t addWriterSource(bool isAudio, configFormat params, int32_t idx = 0);
 
+    void setupExtractor(AMediaExtractor *extractor, string inputFileName, int32_t &trackCount);
+
+    void extract(AMediaExtractor *extractor, configFormat &params, vector<BufferInfo> &bufferInfo,
+                 uint8_t *buffer, size_t bufSize, size_t *bytesExtracted, int32_t idx);
+
+    void compareParams(configFormat srcParam, configFormat dstParam, vector<BufferInfo> dstBufInfo,
+                       int32_t index);
+
     enum standardWriters {
         OGG,
         AAC,
@@ -316,6 +326,146 @@
     return;
 }
 
+void WriterTest::setupExtractor(AMediaExtractor *extractor, string inputFileName,
+                                int32_t &trackCount) {
+    ALOGV("Input file for extractor: %s", inputFileName.c_str());
+
+    int32_t fd = open(inputFileName.c_str(), O_RDONLY);
+    ASSERT_GE(fd, 0) << "Failed to open writer's output file to validate";
+
+    struct stat buf;
+    int32_t status = fstat(fd, &buf);
+    ASSERT_EQ(status, 0) << "Failed to get properties of input file for extractor";
+
+    size_t fileSize = buf.st_size;
+    ALOGV("Size of input file to extractor: %zu", fileSize);
+
+    status = AMediaExtractor_setDataSourceFd(extractor, fd, 0, fileSize);
+    ASSERT_EQ(status, AMEDIA_OK) << "Failed to set data source for extractor";
+
+    trackCount = AMediaExtractor_getTrackCount(extractor);
+    ASSERT_GT(trackCount, 0) << "No tracks reported by extractor";
+    ALOGV("Number of tracks reported by extractor : %d", trackCount);
+    return;
+}
+
+void WriterTest::extract(AMediaExtractor *extractor, configFormat &params,
+                         vector<BufferInfo> &bufferInfo, uint8_t *buffer, size_t bufSize,
+                         size_t *bytesExtracted, int32_t idx) {
+    AMediaExtractor_selectTrack(extractor, idx);
+    AMediaFormat *format = AMediaExtractor_getTrackFormat(extractor, idx);
+    ASSERT_NE(format, nullptr) << "Track format is NULL";
+    ALOGI("Track format = %s", AMediaFormat_toString(format));
+
+    const char *mime = nullptr;
+    AMediaFormat_getString(format, AMEDIAFORMAT_KEY_MIME, &mime);
+    ASSERT_NE(mime, nullptr) << "Track mime is NULL";
+    ALOGI("Track mime = %s", mime);
+    strlcpy(params.mime, mime, kMimeSize);
+
+    if (!strncmp(mime, "audio/", 6)) {
+        ASSERT_TRUE(
+                AMediaFormat_getInt32(format, AMEDIAFORMAT_KEY_CHANNEL_COUNT, &params.channelCount))
+                << "Extractor did not report channel count";
+        ASSERT_TRUE(AMediaFormat_getInt32(format, AMEDIAFORMAT_KEY_SAMPLE_RATE, &params.sampleRate))
+                << "Extractor did not report sample rate";
+    } else if (!strncmp(mime, "video/", 6) || !strncmp(mime, "image/", 6)) {
+        ASSERT_TRUE(AMediaFormat_getInt32(format, AMEDIAFORMAT_KEY_WIDTH, &params.width))
+                << "Extractor did not report width";
+        ASSERT_TRUE(AMediaFormat_getInt32(format, AMEDIAFORMAT_KEY_HEIGHT, &params.height))
+                << "Extractor did not report height";
+    } else {
+        ASSERT_TRUE(false) << "Invalid mime " << mime;
+    }
+
+    int32_t bufferOffset = 0;
+    // Get CSD data
+    int index = 0;
+    void *csdBuf;
+    while (1) {
+        csdBuf = nullptr;
+        char csdName[16];
+        snprintf(csdName, 16, "csd-%d", index);
+        size_t csdSize = 0;
+        bool csdFound = AMediaFormat_getBuffer(format, csdName, &csdBuf, &csdSize);
+        if (!csdFound || !csdBuf || !csdSize) break;
+
+        bufferInfo.push_back({static_cast<int32_t>(csdSize), CODEC_CONFIG_FLAG, 0});
+        memcpy(buffer + bufferOffset, csdBuf, csdSize);
+        bufferOffset += csdSize;
+        index++;
+    }
+
+    // Get frame data
+    while (1) {
+        ssize_t sampleSize = AMediaExtractor_getSampleSize(extractor);
+        if (sampleSize < 0) break;
+
+        uint8_t *sampleBuffer = (uint8_t *)malloc(sampleSize);
+        ASSERT_NE(sampleBuffer, nullptr) << "Failed to allocate the buffer of size " << sampleSize;
+
+        int bytesRead = AMediaExtractor_readSampleData(extractor, sampleBuffer, sampleSize);
+        ASSERT_EQ(bytesRead, sampleSize)
+                << "Number of bytes extracted does not match with sample size";
+        int64_t pts = AMediaExtractor_getSampleTime(extractor);
+        uint32_t flag = AMediaExtractor_getSampleFlags(extractor);
+
+        if (mime == MEDIA_MIMETYPE_AUDIO_VORBIS) {
+            // Removing 4 bytes of AMEDIAFORMAT_KEY_VALID_SAMPLES from sample size
+            bytesRead = bytesRead - 4;
+        }
+
+        ASSERT_LE(bufferOffset + bytesRead, bufSize)
+                << "Size of the buffer is insufficient to store the extracted data";
+        bufferInfo.push_back({bytesRead, flag, pts});
+        memcpy(buffer + bufferOffset, sampleBuffer, bytesRead);
+        bufferOffset += bytesRead;
+
+        AMediaExtractor_advance(extractor);
+        free(sampleBuffer);
+    }
+    *bytesExtracted = bufferOffset;
+    return;
+}
+
+void WriterTest::compareParams(configFormat srcParam, configFormat dstParam,
+                               vector<BufferInfo> dstBufInfo, int32_t index) {
+    ASSERT_STREQ(srcParam.mime, dstParam.mime)
+            << "Extracted mime type does not match with input mime type";
+
+    if (!strncmp(srcParam.mime, "audio/", 6)) {
+        ASSERT_EQ(srcParam.channelCount, dstParam.channelCount)
+                << "Extracted channel count does not match with input channel count";
+        ASSERT_EQ(srcParam.sampleRate, dstParam.sampleRate)
+                << "Extracted sample rate does not match with input sample rate";
+    } else if (!strncmp(srcParam.mime, "video/", 6) || !strncmp(srcParam.mime, "image/", 6)) {
+        ASSERT_EQ(srcParam.width, dstParam.width)
+                << "Extracted width does not match with input width";
+        ASSERT_EQ(srcParam.height, dstParam.height)
+                << "Extracted height does not match with input height";
+    } else {
+        ASSERT_TRUE(false) << "Invalid mime type" << srcParam.mime;
+    }
+
+    int32_t toleranceValueUs = kMuxToleranceTimeUs;
+    if (mWriterName == MPEG4) {
+        toleranceValueUs = kMpeg4MuxToleranceTimeUs;
+    }
+    for (int32_t i = 0; i < dstBufInfo.size(); i++) {
+        ASSERT_EQ(mBufferInfo[index][i].size, dstBufInfo[i].size)
+                << "Input size " << mBufferInfo[index][i].size << " mismatched with extracted size "
+                << dstBufInfo[i].size;
+        ASSERT_EQ(mBufferInfo[index][i].flags, dstBufInfo[i].flags)
+                << "Input flag " << mBufferInfo[index][i].flags
+                << " mismatched with extracted size " << dstBufInfo[i].flags;
+        ASSERT_LE(abs(mBufferInfo[index][i].timeUs - dstBufInfo[i].timeUs), toleranceValueUs)
+                << "Difference between original timestamp " << mBufferInfo[index][i].timeUs
+                << " and extracted timestamp " << dstBufInfo[i].timeUs
+                << "is greater than tolerance value = " << toleranceValueUs << " micro seconds";
+    }
+    return;
+}
+
 TEST_P(WriteFunctionalityTest, CreateWriterTest) {
     if (mDisableTest) return;
     ALOGV("Tests the creation of writers");
@@ -350,16 +500,23 @@
     if (inpId[1] != UNUSED_ID) {
         numTracks++;
     }
+
+    size_t fileSize[numTracks];
+    configFormat param[numTracks];
     for (int32_t idx = 0; idx < numTracks; idx++) {
         string inputFile = gEnv->getRes();
         string inputInfo = gEnv->getRes();
-        configFormat param;
         bool isAudio;
-        getFileDetails(inputFile, inputInfo, param, isAudio, inpId[idx]);
+        getFileDetails(inputFile, inputInfo, param[idx], isAudio, inpId[idx]);
         ASSERT_NE(inputFile.compare(gEnv->getRes()), 0) << "No input file specified";
 
+        struct stat buf;
+        status = stat(inputFile.c_str(), &buf);
+        ASSERT_EQ(status, 0) << "Failed to get properties of input file:" << inputFile;
+        fileSize[idx] = buf.st_size;
+
         ASSERT_NO_FATAL_FAILURE(getInputBufferInfo(inputFile, inputInfo, idx));
-        status = addWriterSource(isAudio, param, idx);
+        status = addWriterSource(isAudio, param[idx], idx);
         ASSERT_EQ((status_t)OK, status) << "Failed to add source for " << writerFormat << "Writer";
     }
 
@@ -389,6 +546,50 @@
     status = mWriter->stop();
     ASSERT_EQ((status_t)OK, status) << "Failed to stop the writer";
     close(fd);
+
+    // Validate the output muxed file created by writer
+    // TODO(b/146423022): Skip validating output for webm writer
+    // TODO(b/146421018): Skip validating output for ogg writer
+    if (mWriterName != OGG && mWriterName != WEBM) {
+        configFormat extractorParams[numTracks];
+        vector<BufferInfo> extractorBufferInfo[numTracks];
+        int32_t trackCount = -1;
+
+        AMediaExtractor *extractor = AMediaExtractor_new();
+        ASSERT_NE(extractor, nullptr) << "Failed to create extractor";
+        ASSERT_NO_FATAL_FAILURE(setupExtractor(extractor, outputFile, trackCount));
+        ASSERT_EQ(trackCount, numTracks)
+                << "Tracks reported by extractor does not match with input number of tracks";
+
+        for (int32_t idx = 0; idx < numTracks; idx++) {
+            char *inputBuffer = (char *)malloc(fileSize[idx]);
+            ASSERT_NE(inputBuffer, nullptr)
+                    << "Failed to allocate the buffer of size " << fileSize[idx];
+            mInputStream[idx].seekg(0, mInputStream[idx].beg);
+            mInputStream[idx].read(inputBuffer, fileSize[idx]);
+            ASSERT_EQ(mInputStream[idx].gcount(), fileSize[idx]);
+
+            uint8_t *extractedBuffer = (uint8_t *)malloc(fileSize[idx]);
+            ASSERT_NE(extractedBuffer, nullptr)
+                    << "Failed to allocate the buffer of size " << fileSize[idx];
+            size_t bytesExtracted = 0;
+
+            ASSERT_NO_FATAL_FAILURE(extract(extractor, extractorParams[idx],
+                                            extractorBufferInfo[idx], extractedBuffer,
+                                            fileSize[idx], &bytesExtracted, idx));
+            ASSERT_GT(bytesExtracted, 0) << "Total bytes extracted by extractor cannot be zero";
+
+            ASSERT_NO_FATAL_FAILURE(
+                    compareParams(param[idx], extractorParams[idx], extractorBufferInfo[idx], idx));
+
+            ASSERT_EQ(memcmp(extractedBuffer, (uint8_t *)inputBuffer, bytesExtracted), 0)
+                    << "Extracted bit stream does not match with input bit stream";
+
+            free(inputBuffer);
+            free(extractedBuffer);
+        }
+        AMediaExtractor_delete(extractor);
+    }
 }
 
 TEST_P(WriteFunctionalityTest, PauseWriterTest) {
@@ -704,6 +905,7 @@
                 make_tuple("webm", VORBIS_1, VP8_1, 0.25)));
 
 int main(int argc, char **argv) {
+    ProcessState::self()->startThreadPool();
     gEnv = new WriterTestEnvironment();
     ::testing::AddGlobalTestEnvironment(gEnv);
     ::testing::InitGoogleTest(&argc, argv);
diff --git a/media/libstagefright/tests/writer/WriterUtility.h b/media/libstagefright/tests/writer/WriterUtility.h
index 5e79298..716844a 100644
--- a/media/libstagefright/tests/writer/WriterUtility.h
+++ b/media/libstagefright/tests/writer/WriterUtility.h
@@ -34,6 +34,7 @@
 constexpr uint32_t kMaxTrackCount = 2;
 constexpr uint32_t kMaxCSDStrlen = 16;
 constexpr uint32_t kMaxCount = 20;
+constexpr int32_t kMimeSize = 128;
 
 struct BufferInfo {
     int32_t size;
@@ -41,6 +42,14 @@
     int64_t timeUs;
 };
 
+struct configFormat {
+    char mime[kMimeSize];
+    int32_t width;
+    int32_t height;
+    int32_t sampleRate;
+    int32_t channelCount;
+};
+
 int32_t sendBuffersToWriter(ifstream &inputStream, vector<BufferInfo> &bufferInfo,
                             int32_t &inputFrameId, sp<MediaAdapter> &currentTrack, int32_t offset,
                             int32_t range, bool isPaused = false,
diff --git a/services/audiopolicy/common/managerdefinitions/src/DeviceDescriptor.cpp b/services/audiopolicy/common/managerdefinitions/src/DeviceDescriptor.cpp
index 68a32a2..d410ffd 100644
--- a/services/audiopolicy/common/managerdefinitions/src/DeviceDescriptor.cpp
+++ b/services/audiopolicy/common/managerdefinitions/src/DeviceDescriptor.cpp
@@ -227,6 +227,7 @@
 {
     bool added = false;
     for (const auto& device : devices) {
+        ALOG_ASSERT(device != nullptr, "Null pointer found when adding DeviceVector");
         if (indexOf(device) < 0 && SortedVector::add(device) >= 0) {
             added = true;
         }
@@ -238,6 +239,7 @@
 
 ssize_t DeviceVector::add(const sp<DeviceDescriptor>& item)
 {
+    ALOG_ASSERT(item != nullptr, "Adding null pointer to DeviceVector");
     ssize_t ret = indexOf(item);
 
     if (ret < 0) {
diff --git a/services/audiopolicy/enginedefault/src/Engine.cpp b/services/audiopolicy/enginedefault/src/Engine.cpp
index b14d2bb..8b39ebe 100755
--- a/services/audiopolicy/enginedefault/src/Engine.cpp
+++ b/services/audiopolicy/enginedefault/src/Engine.cpp
@@ -452,22 +452,26 @@
         devices = availableOutputDevices.getDevicesFromType(AUDIO_DEVICE_OUT_TELEPHONY_TX);
         break;
 
+    case STRATEGY_NONE:
+        // Happens when internal strategies are processed ("rerouting", "patch"...)
+        break;
+
     default:
-        ALOGW("getDevicesForStrategy() unknown strategy: %d", strategy);
+        ALOGW("%s unknown strategy: %d", __func__, strategy);
         break;
     }
 
     if (devices.isEmpty()) {
-        ALOGV("getDevicesForStrategy() no device found for strategy %d", strategy);
+        ALOGV("%s no device found for strategy %d", __func__, strategy);
         sp<DeviceDescriptor> defaultOutputDevice = getApmObserver()->getDefaultOutputDevice();
         if (defaultOutputDevice != nullptr) {
             devices.add(defaultOutputDevice);
         }
         ALOGE_IF(devices.isEmpty(),
-                 "getDevicesForStrategy() no default device defined");
+                 "%s no default device defined", __func__);
     }
 
-    ALOGVV("getDevices ForStrategy() strategy %d, device %s",
+    ALOGVV("%s strategy %d, device %s", __func__,
            strategy, dumpDeviceTypes(devices.types()).c_str());
     return devices;
 }
diff --git a/services/audiopolicy/managerdefault/AudioPolicyManager.cpp b/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
index dd4fda8..470c925 100644
--- a/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
+++ b/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
@@ -463,7 +463,16 @@
             }
         }
     }
-
+    auto musicStrategy = streamToStrategy(AUDIO_STREAM_MUSIC);
+    for (size_t i = 0; i < mOutputs.size(); i++) {
+       sp<SwAudioOutputDescriptor> desc = mOutputs.valueAt(i);
+       // mute media strategies and delay device switch by the largest
+       // This avoid sending the music tail into the earpiece or headset.
+       setStrategyMute(musicStrategy, true, desc);
+       setStrategyMute(musicStrategy, false, desc, MUTE_TIME_MS,
+          mEngine->getOutputDevicesForAttributes(attributes_initializer(AUDIO_USAGE_MEDIA),
+                                              nullptr, true /*fromCache*/).types());
+    }
     // Toggle the device state: UNAVAILABLE -> AVAILABLE
     // This will force reading again the device configuration
     status = setDeviceConnectionState(device,
diff --git a/services/camera/libcameraservice/device3/Camera3Device.cpp b/services/camera/libcameraservice/device3/Camera3Device.cpp
index 35c389e..9696e19 100644
--- a/services/camera/libcameraservice/device3/Camera3Device.cpp
+++ b/services/camera/libcameraservice/device3/Camera3Device.cpp
@@ -1833,10 +1833,12 @@
 
     mStatusWaiters++;
 
+    bool signalPipelineDrain = false;
     if (!active && mUseHalBufManager) {
         auto streamIds = mOutputStreams.getStreamIds();
         if (mStatus == STATUS_ACTIVE) {
             mRequestThread->signalPipelineDrain(streamIds);
+            signalPipelineDrain = true;
         }
         mRequestBufferSM.onWaitUntilIdle();
     }
@@ -1866,6 +1868,10 @@
         }
     } while (!stateSeen);
 
+    if (signalPipelineDrain) {
+        mRequestThread->resetPipelineDrain();
+    }
+
     mStatusWaiters--;
 
     return res;
@@ -4785,6 +4791,12 @@
     mStreamIdsToBeDrained = streamIds;
 }
 
+void Camera3Device::RequestThread::resetPipelineDrain() {
+    Mutex::Autolock pl(mPauseLock);
+    mNotifyPipelineDrain = false;
+    mStreamIdsToBeDrained.clear();
+}
+
 void Camera3Device::RequestThread::clearPreviousRequest() {
     Mutex::Autolock l(mRequestLock);
     mPrevRequest.clear();
diff --git a/services/camera/libcameraservice/device3/Camera3Device.h b/services/camera/libcameraservice/device3/Camera3Device.h
index 8e2c2f9..2aad09a 100644
--- a/services/camera/libcameraservice/device3/Camera3Device.h
+++ b/services/camera/libcameraservice/device3/Camera3Device.h
@@ -832,6 +832,7 @@
         }
 
         void signalPipelineDrain(const std::vector<int>& streamIds);
+        void resetPipelineDrain();
 
         status_t switchToOffline(
                 const std::vector<int32_t>& streamsToKeep,
diff --git a/services/mediametrics/MediaMetricsService.cpp b/services/mediametrics/MediaMetricsService.cpp
index 48e766e..bf6e428 100644
--- a/services/mediametrics/MediaMetricsService.cpp
+++ b/services/mediametrics/MediaMetricsService.cpp
@@ -468,6 +468,7 @@
                                      "codec",
                                      "extractor",
                                      "mediadrm",
+                                     "mediaparser",
                                      "nuplayer",
                                  }) {
         if (key == allowedKey) {
diff --git a/services/oboeservice/AAudioMixer.cpp b/services/oboeservice/AAudioMixer.cpp
index c5d40b8..ad4b830 100644
--- a/services/oboeservice/AAudioMixer.cpp
+++ b/services/oboeservice/AAudioMixer.cpp
@@ -45,7 +45,7 @@
     memset(mOutputBuffer.get(), 0, mBufferSizeInBytes);
 }
 
-int32_t AAudioMixer::mix(int streamIndex, FifoBuffer *fifo, bool allowUnderflow) {
+int32_t AAudioMixer::mix(int streamIndex, std::shared_ptr<FifoBuffer> fifo, bool allowUnderflow) {
     WrappingBuffer wrappingBuffer;
     float *destination = mOutputBuffer.get();
 
diff --git a/services/oboeservice/AAudioMixer.h b/services/oboeservice/AAudioMixer.h
index dd466ac..1a120f2 100644
--- a/services/oboeservice/AAudioMixer.h
+++ b/services/oboeservice/AAudioMixer.h
@@ -37,7 +37,7 @@
      * @param allowUnderflow if true then allow mixer to advance read index past the write index
      * @return frames read from this stream
      */
-    int32_t mix(int streamIndex, android::FifoBuffer *fifo, bool allowUnderflow);
+    int32_t mix(int streamIndex, std::shared_ptr<android::FifoBuffer> fifo, bool allowUnderflow);
 
     float *getOutputBuffer();
 
diff --git a/services/oboeservice/AAudioServiceEndpointCapture.cpp b/services/oboeservice/AAudioServiceEndpointCapture.cpp
index c603e4e..de36d50 100644
--- a/services/oboeservice/AAudioServiceEndpointCapture.cpp
+++ b/services/oboeservice/AAudioServiceEndpointCapture.cpp
@@ -75,48 +75,14 @@
 
         // Distribute data to each active stream.
         { // brackets are for lock_guard
-
             std::lock_guard <std::mutex> lock(mLockStreams);
             for (const auto& clientStream : mRegisteredStreams) {
                 if (clientStream->isRunning() && !clientStream->isSuspended()) {
-                    int64_t clientFramesWritten = 0;
-
                     sp<AAudioServiceStreamShared> streamShared =
                             static_cast<AAudioServiceStreamShared *>(clientStream.get());
-
-                    {
-                        // Lock the AudioFifo to protect against close.
-                        std::lock_guard <std::mutex> lock(streamShared->getAudioDataQueueLock());
-
-                        FifoBuffer *fifo = streamShared->getAudioDataFifoBuffer_l();
-                        if (fifo != nullptr) {
-
-                            // Determine offset between framePosition in client's stream
-                            // vs the underlying MMAP stream.
-                            clientFramesWritten = fifo->getWriteCounter();
-                            // There are two indices that refer to the same frame.
-                            int64_t positionOffset = mmapFramesRead - clientFramesWritten;
-                            streamShared->setTimestampPositionOffset(positionOffset);
-
-                            // Is the buffer too full to write a burst?
-                            if (fifo->getEmptyFramesAvailable() <
-                                    getFramesPerBurst()) {
-                                streamShared->incrementXRunCount();
-                            } else {
-                                fifo->write(mDistributionBuffer.get(), getFramesPerBurst());
-                            }
-                            clientFramesWritten = fifo->getWriteCounter();
-                        }
-                    }
-
-                    if (clientFramesWritten > 0) {
-                        // This timestamp represents the completion of data being written into the
-                        // client buffer. It is sent to the client and used in the timing model
-                        // to decide when data will be available to read.
-                        Timestamp timestamp(clientFramesWritten, AudioClock::getNanoseconds());
-                        streamShared->markTransferTime(timestamp);
-                    }
-
+                    streamShared->writeDataIfRoom(mmapFramesRead,
+                                                  mDistributionBuffer.get(),
+                                                  getFramesPerBurst());
                 }
             }
         }
diff --git a/services/oboeservice/AAudioServiceEndpointPlay.cpp b/services/oboeservice/AAudioServiceEndpointPlay.cpp
index bda4b90..1603e41 100644
--- a/services/oboeservice/AAudioServiceEndpointPlay.cpp
+++ b/services/oboeservice/AAudioServiceEndpointPlay.cpp
@@ -100,9 +100,10 @@
                 {
                     // Lock the AudioFifo to protect against close.
                     std::lock_guard <std::mutex> lock(streamShared->getAudioDataQueueLock());
-
-                    FifoBuffer *fifo = streamShared->getAudioDataFifoBuffer_l();
-                    if (fifo != nullptr) {
+                    std::shared_ptr<SharedRingBuffer> audioDataQueue
+                            = streamShared->getAudioDataQueue_l();
+                    std::shared_ptr<FifoBuffer> fifo;
+                    if (audioDataQueue && (fifo = audioDataQueue->getFifoBuffer())) {
 
                         // Determine offset between framePosition in client's stream
                         // vs the underlying MMAP stream.
diff --git a/services/oboeservice/AAudioServiceStreamBase.cpp b/services/oboeservice/AAudioServiceStreamBase.cpp
index 663dae2..ea691cf 100644
--- a/services/oboeservice/AAudioServiceStreamBase.cpp
+++ b/services/oboeservice/AAudioServiceStreamBase.cpp
@@ -46,8 +46,7 @@
  */
 
 AAudioServiceStreamBase::AAudioServiceStreamBase(AAudioService &audioService)
-        : mUpMessageQueue(nullptr)
-        , mTimestampThread("AATime")
+        : mTimestampThread("AATime")
         , mAtomicStreamTimestamp()
         , mAudioService(audioService) {
     mMmapClient.clientUid = -1;
@@ -56,6 +55,8 @@
 }
 
 AAudioServiceStreamBase::~AAudioServiceStreamBase() {
+    ALOGD("%s() called", __func__);
+
     // May not be set if open failed.
     if (mMetricsId.size() > 0) {
         mediametrics::LogItem(mMetricsId)
@@ -140,7 +141,7 @@
             return AAUDIO_ERROR_INVALID_STATE;
         }
 
-        mUpMessageQueue = new SharedRingBuffer();
+        mUpMessageQueue = std::make_shared<SharedRingBuffer>();
         result = mUpMessageQueue->allocate(sizeof(AAudioServiceMessage),
                                            QUEUE_UP_CAPACITY_COMMANDS);
         if (result != AAUDIO_OK) {
@@ -179,6 +180,8 @@
         return AAUDIO_OK;
     }
 
+    // This will call stopTimestampThread() and also stop the stream,
+    // just in case it was not already stopped.
     stop_l();
 
     aaudio_result_t result = AAUDIO_OK;
@@ -194,13 +197,6 @@
         mServiceEndpoint.clear(); // endpoint will hold the pointer after this method returns.
     }
 
-    {
-        std::lock_guard<std::mutex> lock(mUpMessageQueueLock);
-        stopTimestampThread();
-        delete mUpMessageQueue;
-        mUpMessageQueue = nullptr;
-    }
-
     setState(AAUDIO_STREAM_STATE_CLOSED);
 
     mediametrics::LogItem(mMetricsId)
@@ -514,12 +510,8 @@
         ALOGE("%s(): mUpMessageQueue null! - stream not open", __func__);
         return true;
     }
-    int32_t framesAvailable = mUpMessageQueue->getFifoBuffer()
-        ->getFullFramesAvailable();
-    int32_t capacity = mUpMessageQueue->getFifoBuffer()
-        ->getBufferCapacityInFrames();
     // Is it half full or more
-    return framesAvailable >= (capacity / 2);
+    return mUpMessageQueue->getFractionalFullness() >= 0.5;
 }
 
 aaudio_result_t AAudioServiceStreamBase::writeUpMessageQueue(AAudioServiceMessage *command) {
diff --git a/services/oboeservice/AAudioServiceStreamBase.h b/services/oboeservice/AAudioServiceStreamBase.h
index 94cc980..51c26e9 100644
--- a/services/oboeservice/AAudioServiceStreamBase.h
+++ b/services/oboeservice/AAudioServiceStreamBase.h
@@ -284,8 +284,8 @@
 
     pid_t                   mRegisteredClientThread = ILLEGAL_THREAD_ID;
 
-    SharedRingBuffer*       mUpMessageQueue;
     std::mutex              mUpMessageQueueLock;
+    std::shared_ptr<SharedRingBuffer> mUpMessageQueue;
 
     AAudioThread            mTimestampThread;
     // This is used by one thread to tell another thread to exit. So it must be atomic.
diff --git a/services/oboeservice/AAudioServiceStreamShared.cpp b/services/oboeservice/AAudioServiceStreamShared.cpp
index f2cf016..e88a81e 100644
--- a/services/oboeservice/AAudioServiceStreamShared.cpp
+++ b/services/oboeservice/AAudioServiceStreamShared.cpp
@@ -59,12 +59,7 @@
 
     result << AAudioServiceStreamBase::dump();
 
-    auto fifo = mAudioDataQueue->getFifoBuffer();
-    int32_t readCounter = fifo->getReadCounter();
-    int32_t writeCounter = fifo->getWriteCounter();
-    result << std::setw(10) << writeCounter;
-    result << std::setw(10) << readCounter;
-    result << std::setw(8) << (writeCounter - readCounter);
+    result << mAudioDataQueue->dump();
     result << std::setw(8) << getXRunCount();
 
     return result.str();
@@ -180,7 +175,7 @@
     {
         std::lock_guard<std::mutex> lock(mAudioDataQueueLock);
         // Create audio data shared memory buffer for client.
-        mAudioDataQueue = new SharedRingBuffer();
+        mAudioDataQueue = std::make_shared<SharedRingBuffer>();
         result = mAudioDataQueue->allocate(calculateBytesPerFrame(), getBufferCapacity());
         if (result != AAUDIO_OK) {
             ALOGE("%s() could not allocate FIFO with %d frames",
@@ -203,18 +198,6 @@
     return result;
 }
 
-aaudio_result_t AAudioServiceStreamShared::close_l()  {
-    aaudio_result_t result = AAudioServiceStreamBase::close_l();
-
-    {
-        std::lock_guard<std::mutex> lock(mAudioDataQueueLock);
-        delete mAudioDataQueue;
-        mAudioDataQueue = nullptr;
-    }
-
-    return result;
-}
-
 /**
  * Get an immutable description of the data queue created by this service.
  */
@@ -273,3 +256,37 @@
     *positionFrames = position;
     return result;
 }
+
+void AAudioServiceStreamShared::writeDataIfRoom(int64_t mmapFramesRead,
+                                                const void *buffer, int32_t numFrames) {
+    int64_t clientFramesWritten = 0;
+
+    // Lock the AudioFifo to protect against close.
+    std::lock_guard <std::mutex> lock(mAudioDataQueueLock);
+
+    if (mAudioDataQueue != nullptr) {
+        std::shared_ptr<FifoBuffer> fifo = mAudioDataQueue->getFifoBuffer();
+        // Determine offset between framePosition in client's stream
+        // vs the underlying MMAP stream.
+        clientFramesWritten = fifo->getWriteCounter();
+        // There are two indices that refer to the same frame.
+        int64_t positionOffset = mmapFramesRead - clientFramesWritten;
+        setTimestampPositionOffset(positionOffset);
+
+        // Is the buffer too full to write a burst?
+        if (fifo->getEmptyFramesAvailable() < getFramesPerBurst()) {
+            incrementXRunCount();
+        } else {
+            fifo->write(buffer, numFrames);
+        }
+        clientFramesWritten = fifo->getWriteCounter();
+    }
+
+    if (clientFramesWritten > 0) {
+        // This timestamp represents the completion of data being written into the
+        // client buffer. It is sent to the client and used in the timing model
+        // to decide when data will be available to read.
+        Timestamp timestamp(clientFramesWritten, AudioClock::getNanoseconds());
+        markTransferTime(timestamp);
+    }
+}
diff --git a/services/oboeservice/AAudioServiceStreamShared.h b/services/oboeservice/AAudioServiceStreamShared.h
index abcb782..5b1f8da 100644
--- a/services/oboeservice/AAudioServiceStreamShared.h
+++ b/services/oboeservice/AAudioServiceStreamShared.h
@@ -52,23 +52,23 @@
 
     aaudio_result_t open(const aaudio::AAudioStreamRequest &request) override;
 
-    aaudio_result_t close_l() override;
-
     /**
-     * This must be locked when calling getAudioDataFifoBuffer_l() and while
-     * using the FifoBuffer it returns.
+     * This must be locked when calling getAudioDataQueue_l() and while
+     * using the FifoBuffer it contains.
      */
     std::mutex &getAudioDataQueueLock() {
         return mAudioDataQueueLock;
     }
 
+    void writeDataIfRoom(int64_t mmapFramesRead, const void *buffer, int32_t numFrames);
+
     /**
-     * This must only be call under getAudioDataQueueLock().
+     * This must only be called under getAudioDataQueueLock().
      * @return
      */
-    android::FifoBuffer *getAudioDataFifoBuffer_l() { return (mAudioDataQueue == nullptr)
-                                                      ? nullptr
-                                                      : mAudioDataQueue->getFifoBuffer(); }
+    std::shared_ptr<SharedRingBuffer> getAudioDataQueue_l() {
+      return mAudioDataQueue;
+    }
 
     /* Keep a record of when a buffer transfer completed.
      * This allows for a more accurate timing model.
@@ -106,7 +106,8 @@
                                             int32_t framesPerBurst);
 
 private:
-    SharedRingBuffer        *mAudioDataQueue = nullptr; // protected by mAudioDataQueueLock
+
+    std::shared_ptr<SharedRingBuffer> mAudioDataQueue; // protected by mAudioDataQueueLock
     std::mutex               mAudioDataQueueLock;
 
     std::atomic<int64_t>     mTimestampPositionOffset;
diff --git a/services/oboeservice/SharedRingBuffer.cpp b/services/oboeservice/SharedRingBuffer.cpp
index 2454446..0a9196a 100644
--- a/services/oboeservice/SharedRingBuffer.cpp
+++ b/services/oboeservice/SharedRingBuffer.cpp
@@ -18,6 +18,8 @@
 //#define LOG_NDEBUG 0
 #include <utils/Log.h>
 
+#include <iomanip>
+#include <iostream>
 #include <sys/mman.h>
 
 #include "binding/RingBufferParcelable.h"
@@ -30,8 +32,8 @@
 
 SharedRingBuffer::~SharedRingBuffer()
 {
+    mFifoBuffer.reset(); // uses mSharedMemory
     if (mSharedMemory != nullptr) {
-        delete mFifoBuffer;
         munmap(mSharedMemory, mSharedMemorySizeInBytes);
         mSharedMemory = nullptr;
     }
@@ -76,7 +78,7 @@
             (fifo_counter_t *) &mSharedMemory[SHARED_RINGBUFFER_WRITE_OFFSET];
     uint8_t *dataAddress = &mSharedMemory[SHARED_RINGBUFFER_DATA_OFFSET];
 
-    mFifoBuffer = new FifoBuffer(bytesPerFrame, capacityInFrames,
+    mFifoBuffer = std::make_shared<FifoBufferIndirect>(bytesPerFrame, capacityInFrames,
                                  readCounterAddress, writeCounterAddress, dataAddress);
     return AAUDIO_OK;
 }
@@ -94,3 +96,19 @@
     ringBufferParcelable.setFramesPerBurst(1);
     ringBufferParcelable.setCapacityInFrames(mCapacityInFrames);
 }
+
+double SharedRingBuffer::getFractionalFullness() const {
+  int32_t framesAvailable = mFifoBuffer->getFullFramesAvailable();
+  int32_t capacity = mFifoBuffer->getBufferCapacityInFrames();
+  return framesAvailable / (double) capacity;
+}
+
+std::string SharedRingBuffer::dump() const {
+    std::stringstream result;
+    int32_t readCounter = mFifoBuffer->getReadCounter();
+    int32_t writeCounter = mFifoBuffer->getWriteCounter();
+    result << std::setw(10) << writeCounter;
+    result << std::setw(10) << readCounter;
+    result << std::setw(8) << (writeCounter - readCounter);
+    return result.str();
+}
diff --git a/services/oboeservice/SharedRingBuffer.h b/services/oboeservice/SharedRingBuffer.h
index 79169bc..c3a9bb7 100644
--- a/services/oboeservice/SharedRingBuffer.h
+++ b/services/oboeservice/SharedRingBuffer.h
@@ -18,8 +18,9 @@
 #define AAUDIO_SHARED_RINGBUFFER_H
 
 #include <android-base/unique_fd.h>
-#include <stdint.h>
 #include <cutils/ashmem.h>
+#include <stdint.h>
+#include <string>
 #include <sys/mman.h>
 
 #include "fifo/FifoBuffer.h"
@@ -47,15 +48,25 @@
     void fillParcelable(AudioEndpointParcelable &endpointParcelable,
                         RingBufferParcelable &ringBufferParcelable);
 
-    android::FifoBuffer * getFifoBuffer() {
+    /**
+     * Return available frames as a fraction of the capacity.
+     * @return fullness between 0.0 and 1.0
+     */
+    double getFractionalFullness() const;
+
+    // dump: write# read# available
+    std::string dump() const;
+
+    std::shared_ptr<android::FifoBuffer> getFifoBuffer() {
         return mFifoBuffer;
     }
 
 private:
     android::base::unique_fd  mFileDescriptor;
-    android::FifoBuffer      *mFifoBuffer = nullptr;
-    uint8_t                  *mSharedMemory = nullptr;
+    std::shared_ptr<android::FifoBufferIndirect>  mFifoBuffer;
+    uint8_t                  *mSharedMemory = nullptr; // mmap
     int32_t                   mSharedMemorySizeInBytes = 0;
+    // size of memory used for data vs counters
     int32_t                   mDataMemorySizeInBytes = 0;
     android::fifo_frames_t    mCapacityInFrames = 0;
 };