Merge "Clean upMP3Extractor member data initialization" into rvc-dev
diff --git a/include/private/media/AudioTrackShared.h b/include/private/media/AudioTrackShared.h
index 8aec80d..9cabd8b 100644
--- a/include/private/media/AudioTrackShared.h
+++ b/include/private/media/AudioTrackShared.h
@@ -614,6 +614,8 @@
     // and thus which resulted in an underrun.
     virtual uint32_t    getUnderrunFrames() const { return mCblk->u.mStreaming.mUnderrunFrames; }
 
+    virtual uint32_t    getUnderrunCount() const { return mCblk->u.mStreaming.mUnderrunCount; }
+
     // Return the playback speed and pitch read atomically. Not multi-thread safe on server side.
     AudioPlaybackRate getPlaybackRate();
 
diff --git a/media/TEST_MAPPING b/media/TEST_MAPPING
new file mode 100644
index 0000000..a6dfb21
--- /dev/null
+++ b/media/TEST_MAPPING
@@ -0,0 +1,32 @@
+{
+  "presubmit": [
+    {
+      "name": "GtsMediaTestCases",
+      "options" : [
+        {
+          "include-annotation": "android.platform.test.annotations.Presubmit"
+        },
+        {
+          "include-filter": "com.google.android.media.gts.WidevineGenericOpsTests"
+        }
+      ]
+    },
+    {
+      "name": "GtsExoPlayerTestCases",
+      "options" : [
+        {
+          "include-annotation": "android.platform.test.annotations.SocPresubmit"
+        },
+        {
+          "include-filter": "com.google.android.exoplayer.gts.DashTest#testWidevine23FpsH264Fixed"
+        }
+      ]
+    }
+  ],
+  "imports": [
+    {
+      "path": "frameworks/av/drm/mediadrm/plugins"
+    }
+  ]
+}
+
diff --git a/media/bufferpool/2.0/AccessorImpl.cpp b/media/bufferpool/2.0/AccessorImpl.cpp
index 1947656..cb55b07 100644
--- a/media/bufferpool/2.0/AccessorImpl.cpp
+++ b/media/bufferpool/2.0/AccessorImpl.cpp
@@ -135,7 +135,14 @@
     return false;
 }
 
-uint32_t Accessor::Impl::sSeqId = time(nullptr);
+#ifdef __ANDROID_VNDK__
+static constexpr uint32_t kSeqIdVndkBit = 1 << 31;
+#else
+static constexpr uint32_t kSeqIdVndkBit = 0;
+#endif
+
+static constexpr uint32_t kSeqIdMax = 0x7fffffff;
+uint32_t Accessor::Impl::sSeqId = time(nullptr) & kSeqIdMax;
 
 Accessor::Impl::Impl(
         const std::shared_ptr<BufferPoolAllocator> &allocator)
@@ -157,7 +164,7 @@
         std::lock_guard<std::mutex> lock(mBufferPool.mMutex);
         if (newConnection) {
             int32_t pid = getpid();
-            ConnectionId id = (int64_t)pid << 32 | sSeqId;
+            ConnectionId id = (int64_t)pid << 32 | sSeqId | kSeqIdVndkBit;
             status = mBufferPool.mObserver.open(id, statusDescPtr);
             if (status == ResultStatus::OK) {
                 newConnection->initialize(accessor, id);
@@ -167,7 +174,7 @@
                 mBufferPool.mConnectionIds.insert(id);
                 mBufferPool.mInvalidationChannel.getDesc(invDescPtr);
                 mBufferPool.mInvalidation.onConnect(id, observer);
-                if (sSeqId == UINT32_MAX) {
+                if (sSeqId == kSeqIdMax) {
                    sSeqId = 0;
                 } else {
                     ++sSeqId;
diff --git a/media/codec2/hidl/1.0/vts/functional/Android.bp b/media/codec2/hidl/1.0/vts/functional/Android.bp
index 5f0ba7d..cd3be81 100644
--- a/media/codec2/hidl/1.0/vts/functional/Android.bp
+++ b/media/codec2/hidl/1.0/vts/functional/Android.bp
@@ -89,6 +89,8 @@
         "res/bbb_av1_176_144.av1",
         "res/bbb_av1_640_360.info",
         "res/bbb_av1_176_144.info",
+        "res/bbb_vp9_704x480_280kbps_24fps_altref_2.vp9",
+        "res/bbb_vp9_704x480_280kbps_24fps_altref_2.info",
     ],
 }
 
diff --git a/media/codec2/hidl/1.0/vts/functional/common/media_c2_hidl_test_common.cpp b/media/codec2/hidl/1.0/vts/functional/common/media_c2_hidl_test_common.cpp
index 5d4b001..da8225c 100644
--- a/media/codec2/hidl/1.0/vts/functional/common/media_c2_hidl_test_common.cpp
+++ b/media/codec2/hidl/1.0/vts/functional/common/media_c2_hidl_test_common.cpp
@@ -115,7 +115,8 @@
             typedef std::unique_lock<std::mutex> ULock;
             ULock l(queueLock);
             workQueue.push_back(std::move(work));
-            if (!flushedIndices.empty()) {
+            if (!flushedIndices.empty() &&
+                (frameIndexIt != flushedIndices.end())) {
                 flushedIndices.erase(frameIndexIt);
             }
             queueCondition.notify_all();
diff --git a/media/codec2/hidl/1.0/vts/functional/component/VtsHalMediaC2V1_0TargetComponentTest.cpp b/media/codec2/hidl/1.0/vts/functional/component/VtsHalMediaC2V1_0TargetComponentTest.cpp
index 119ce14..6122225 100644
--- a/media/codec2/hidl/1.0/vts/functional/component/VtsHalMediaC2V1_0TargetComponentTest.cpp
+++ b/media/codec2/hidl/1.0/vts/functional/component/VtsHalMediaC2V1_0TargetComponentTest.cpp
@@ -330,7 +330,7 @@
 TEST_P(Codec2ComponentInputTests, InputBufferTest) {
     description("Tests for different inputs");
 
-    uint32_t flags = std::stol(std::get<2>(GetParam()));
+    uint32_t flags = std::stoul(std::get<2>(GetParam()));
     bool isNullBuffer = !std::get<3>(GetParam()).compare("true");
     if (isNullBuffer)
         ALOGD("Testing for null input buffer with flag : %u", flags);
diff --git a/media/codec2/hidl/1.0/vts/functional/res/bbb_vp9_704x480_280kbps_24fps_altref_2.info b/media/codec2/hidl/1.0/vts/functional/res/bbb_vp9_704x480_280kbps_24fps_altref_2.info
new file mode 100644
index 0000000..9ea1ffa
--- /dev/null
+++ b/media/codec2/hidl/1.0/vts/functional/res/bbb_vp9_704x480_280kbps_24fps_altref_2.info
@@ -0,0 +1,352 @@
+73 0 0
+159 16 41000
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+3832 16 1125000
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+115 0 1208000
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diff --git a/media/codec2/hidl/1.0/vts/functional/res/bbb_vp9_704x480_280kbps_24fps_altref_2.vp9 b/media/codec2/hidl/1.0/vts/functional/res/bbb_vp9_704x480_280kbps_24fps_altref_2.vp9
new file mode 100644
index 0000000..00c7dec
--- /dev/null
+++ b/media/codec2/hidl/1.0/vts/functional/res/bbb_vp9_704x480_280kbps_24fps_altref_2.vp9
Binary files differ
diff --git a/media/codec2/hidl/1.0/vts/functional/video/VtsHalMediaC2V1_0TargetVideoDecTest.cpp b/media/codec2/hidl/1.0/vts/functional/video/VtsHalMediaC2V1_0TargetVideoDecTest.cpp
index ec3fd7b..f216429 100644
--- a/media/codec2/hidl/1.0/vts/functional/video/VtsHalMediaC2V1_0TargetVideoDecTest.cpp
+++ b/media/codec2/hidl/1.0/vts/functional/video/VtsHalMediaC2V1_0TargetVideoDecTest.cpp
@@ -267,7 +267,7 @@
 }
 
 // number of elementary streams per component
-#define STREAM_COUNT 2
+#define STREAM_COUNT 3
 // LookUpTable of clips and metadata for component testing
 void GetURLForComponent(Codec2VideoDecHidlTest::standardComp comp, char* mURL, char* info,
                         size_t streamIndex = 1) {
@@ -280,29 +280,31 @@
 
     static const CompToURL kCompToURL[] = {
             {Codec2VideoDecHidlTest::standardComp::avc,
-             {"bbb_avc_176x144_300kbps_60fps.h264", "bbb_avc_640x360_768kbps_30fps.h264"},
-             {"bbb_avc_176x144_300kbps_60fps.info", "bbb_avc_640x360_768kbps_30fps.info"}},
+             {"bbb_avc_176x144_300kbps_60fps.h264", "bbb_avc_640x360_768kbps_30fps.h264", ""},
+             {"bbb_avc_176x144_300kbps_60fps.info", "bbb_avc_640x360_768kbps_30fps.info", ""}},
             {Codec2VideoDecHidlTest::standardComp::hevc,
-             {"bbb_hevc_176x144_176kbps_60fps.hevc", "bbb_hevc_640x360_1600kbps_30fps.hevc"},
-             {"bbb_hevc_176x144_176kbps_60fps.info", "bbb_hevc_640x360_1600kbps_30fps.info"}},
+             {"bbb_hevc_176x144_176kbps_60fps.hevc", "bbb_hevc_640x360_1600kbps_30fps.hevc", ""},
+             {"bbb_hevc_176x144_176kbps_60fps.info", "bbb_hevc_640x360_1600kbps_30fps.info", ""}},
             {Codec2VideoDecHidlTest::standardComp::mpeg2,
-             {"bbb_mpeg2_176x144_105kbps_25fps.m2v", "bbb_mpeg2_352x288_1mbps_60fps.m2v"},
-             {"bbb_mpeg2_176x144_105kbps_25fps.info", "bbb_mpeg2_352x288_1mbps_60fps.info"}},
+             {"bbb_mpeg2_176x144_105kbps_25fps.m2v", "bbb_mpeg2_352x288_1mbps_60fps.m2v", ""},
+             {"bbb_mpeg2_176x144_105kbps_25fps.info", "bbb_mpeg2_352x288_1mbps_60fps.info", ""}},
             {Codec2VideoDecHidlTest::standardComp::h263,
-             {"", "bbb_h263_352x288_300kbps_12fps.h263"},
-             {"", "bbb_h263_352x288_300kbps_12fps.info"}},
+             {"", "bbb_h263_352x288_300kbps_12fps.h263", ""},
+             {"", "bbb_h263_352x288_300kbps_12fps.info", ""}},
             {Codec2VideoDecHidlTest::standardComp::mpeg4,
-             {"", "bbb_mpeg4_352x288_512kbps_30fps.m4v"},
-             {"", "bbb_mpeg4_352x288_512kbps_30fps.info"}},
+             {"", "bbb_mpeg4_352x288_512kbps_30fps.m4v", ""},
+             {"", "bbb_mpeg4_352x288_512kbps_30fps.info", ""}},
             {Codec2VideoDecHidlTest::standardComp::vp8,
-             {"bbb_vp8_176x144_240kbps_60fps.vp8", "bbb_vp8_640x360_2mbps_30fps.vp8"},
-             {"bbb_vp8_176x144_240kbps_60fps.info", "bbb_vp8_640x360_2mbps_30fps.info"}},
+             {"bbb_vp8_176x144_240kbps_60fps.vp8", "bbb_vp8_640x360_2mbps_30fps.vp8", ""},
+             {"bbb_vp8_176x144_240kbps_60fps.info", "bbb_vp8_640x360_2mbps_30fps.info", ""}},
             {Codec2VideoDecHidlTest::standardComp::vp9,
-             {"bbb_vp9_176x144_285kbps_60fps.vp9", "bbb_vp9_640x360_1600kbps_30fps.vp9"},
-             {"bbb_vp9_176x144_285kbps_60fps.info", "bbb_vp9_640x360_1600kbps_30fps.info"}},
+             {"bbb_vp9_176x144_285kbps_60fps.vp9", "bbb_vp9_640x360_1600kbps_30fps.vp9",
+              "bbb_vp9_704x480_280kbps_24fps_altref_2.vp9"},
+             {"bbb_vp9_176x144_285kbps_60fps.info", "bbb_vp9_640x360_1600kbps_30fps.info",
+              "bbb_vp9_704x480_280kbps_24fps_altref_2.info"}},
             {Codec2VideoDecHidlTest::standardComp::av1,
-             {"bbb_av1_640_360.av1", "bbb_av1_176_144.av1"},
-             {"bbb_av1_640_360.info", "bbb_av1_176_144.info"}},
+             {"bbb_av1_640_360.av1", "bbb_av1_176_144.av1", ""},
+             {"bbb_av1_640_360.info", "bbb_av1_176_144.info", ""}},
     };
 
     for (size_t i = 0; i < sizeof(kCompToURL) / sizeof(kCompToURL[0]); ++i) {
@@ -481,7 +483,9 @@
         eleInfo >> flags;
         eleInfo >> timestamp;
         bool codecConfig = flags ? ((1 << (flags - 1)) & C2FrameData::FLAG_CODEC_CONFIG) != 0 : 0;
-        if (mTimestampDevTest && !codecConfig) mTimestampUslist.push_back(timestamp);
+        bool nonDisplayFrame = ((flags & FLAG_NON_DISPLAY_FRAME) != 0);
+        if (mTimestampDevTest && !codecConfig && !nonDisplayFrame)
+            mTimestampUslist.push_back(timestamp);
         Info.push_back({bytesCount, flags, timestamp});
     }
     eleInfo.close();
@@ -545,6 +549,10 @@
         strcpy(mURL, sResourceDir.c_str());
         strcpy(info, sResourceDir.c_str());
         GetURLForComponent(mCompName, mURL, info, i % STREAM_COUNT);
+        if (!(strcmp(mURL, sResourceDir.c_str())) || !(strcmp(info, sResourceDir.c_str()))) {
+            ALOGV("Stream not available, skipping this index");
+            continue;
+        }
 
         eleInfo.open(info);
         ASSERT_EQ(eleInfo.is_open(), true) << mURL << " - file not found";
@@ -560,10 +568,12 @@
             Info.push_back({bytesCount, flags, timestamp});
             bool codecConfig =
                     flags ? ((1 << (flags - 1)) & C2FrameData::FLAG_CODEC_CONFIG) != 0 : 0;
+            bool nonDisplayFrame = ((flags & FLAG_NON_DISPLAY_FRAME) != 0);
 
             {
                 ULock l(mQueueLock);
-                if (mTimestampDevTest && !codecConfig) mTimestampUslist.push_back(timestamp);
+                if (mTimestampDevTest && !codecConfig && !nonDisplayFrame)
+                    mTimestampUslist.push_back(timestamp);
             }
             if (timestampMax < timestamp) timestampMax = timestamp;
         }
@@ -903,6 +913,10 @@
                 std::make_tuple(std::get<0>(params), std::get<1>(params), "1", "false"));
         kDecodeTestParameters.push_back(
                 std::make_tuple(std::get<0>(params), std::get<1>(params), "1", "true"));
+        kDecodeTestParameters.push_back(
+                std::make_tuple(std::get<0>(params), std::get<1>(params), "2", "false"));
+        kDecodeTestParameters.push_back(
+                std::make_tuple(std::get<0>(params), std::get<1>(params), "2", "true"));
     }
 
     // Set the resource directory based on command line args.
diff --git a/media/codec2/hidl/1.0/vts/functional/video/VtsHalMediaC2V1_0TargetVideoDecTest.xml b/media/codec2/hidl/1.0/vts/functional/video/VtsHalMediaC2V1_0TargetVideoDecTest.xml
index 8761797..63e7a69 100644
--- a/media/codec2/hidl/1.0/vts/functional/video/VtsHalMediaC2V1_0TargetVideoDecTest.xml
+++ b/media/codec2/hidl/1.0/vts/functional/video/VtsHalMediaC2V1_0TargetVideoDecTest.xml
@@ -49,6 +49,8 @@
         <option name="push-file" key="bbb_av1_176_144.av1" value="/data/local/tmp/media/bbb_av1_176_144.av1" />
         <option name="push-file" key="bbb_av1_640_360.info" value="/data/local/tmp/media/bbb_av1_640_360.info" />
         <option name="push-file" key="bbb_av1_176_144.info" value="/data/local/tmp/media/bbb_av1_176_144.info" />
+        <option name="push-file" key="bbb_vp9_704x480_280kbps_24fps_altref_2.vp9" value="/data/local/tmp/media/bbb_vp9_704x480_280kbps_24fps_altref_2.vp9" />
+        <option name="push-file" key="bbb_vp9_704x480_280kbps_24fps_altref_2.info" value="/data/local/tmp/media/bbb_vp9_704x480_280kbps_24fps_altref_2.info" />
     </target_preparer>
 
     <test class="com.android.tradefed.testtype.GTest" >
diff --git a/media/codec2/hidl/1.0/vts/functional/video/VtsHalMediaC2V1_0TargetVideoEncTest.cpp b/media/codec2/hidl/1.0/vts/functional/video/VtsHalMediaC2V1_0TargetVideoEncTest.cpp
index be97383..ecc56f5 100644
--- a/media/codec2/hidl/1.0/vts/functional/video/VtsHalMediaC2V1_0TargetVideoEncTest.cpp
+++ b/media/codec2/hidl/1.0/vts/functional/video/VtsHalMediaC2V1_0TargetVideoEncTest.cpp
@@ -41,7 +41,8 @@
         : C2Buffer({block->share(C2Rect(block->width(), block->height()), ::C2Fence())}) {}
 };
 
-static std::vector<std::tuple<std::string, std::string, std::string>> kEncodeTestParameters;
+static std::vector<std::tuple<std::string, std::string, std::string, std::string>>
+        kEncodeTestParameters;
 static std::vector<std::tuple<std::string, std::string, std::string, std::string>>
         kEncodeResolutionTestParameters;
 
@@ -102,6 +103,7 @@
         mFramesReceived = 0;
         mFailedWorkReceived = 0;
         mTimestampUs = 0u;
+        mOutputSize = 0u;
         mTimestampDevTest = false;
         if (mCompName == unknown_comp) mDisableTest = true;
         if (mDisableTest) std::cout << "[   WARN   ] Test Disabled \n";
@@ -159,6 +161,16 @@
                 }
 
                 if (work->result != C2_OK) mFailedWorkReceived++;
+                if (!work->worklets.front()->output.buffers.empty()) {
+                    mOutputSize += work->worklets.front()
+                                           ->output.buffers[0]
+                                           ->data()
+                                           .linearBlocks()
+                                           .front()
+                                           .map()
+                                           .get()
+                                           .capacity();
+                }
                 workDone(mComponent, work, mFlushedIndices, mQueueLock, mQueueCondition, mWorkQueue,
                          mEos, mCsd, mFramesReceived);
             }
@@ -186,6 +198,7 @@
     uint32_t mFramesReceived;
     uint32_t mFailedWorkReceived;
     uint64_t mTimestampUs;
+    uint64_t mOutputSize;
 
     std::list<uint64_t> mTimestampUslist;
     std::list<uint64_t> mFlushedIndices;
@@ -281,7 +294,6 @@
     uint32_t maxRetry = 0;
     int bytesCount = nWidth * nHeight * 3 >> 1;
     int32_t timestampIncr = ENCODER_TIMESTAMP_INCREMENT;
-    uint64_t timestamp = 0;
     c2_status_t err = C2_OK;
     while (1) {
         if (nFrames == 0) break;
@@ -308,7 +320,7 @@
         }
 
         work->input.flags = (C2FrameData::flags_t)flags;
-        work->input.ordinal.timestamp = timestamp;
+        work->input.ordinal.timestamp = frameID * timestampIncr;
         work->input.ordinal.frameIndex = frameID;
         {
             ULock l(queueLock);
@@ -361,7 +373,6 @@
         ASSERT_EQ(component->queue(&items), C2_OK);
         ALOGV("Frame #%d size = %d queued", frameID, bytesCount);
         nFrames--;
-        timestamp += timestampIncr;
         frameID++;
         maxRetry = 0;
     }
@@ -376,7 +387,8 @@
 
 class Codec2VideoEncEncodeTest
     : public Codec2VideoEncHidlTestBase,
-      public ::testing::WithParamInterface<std::tuple<std::string, std::string, std::string>> {
+      public ::testing::WithParamInterface<
+              std::tuple<std::string, std::string, std::string, std::string>> {
     void getParams() {
         mInstanceName = std::get<0>(GetParam());
         mComponentName = std::get<1>(GetParam());
@@ -391,6 +403,8 @@
     int32_t nWidth = ENC_DEFAULT_FRAME_WIDTH;
     int32_t nHeight = ENC_DEFAULT_FRAME_HEIGHT;
     bool signalEOS = !std::get<2>(GetParam()).compare("true");
+    // Send an empty frame to receive CSD data from encoder.
+    bool sendEmptyFirstFrame = !std::get<3>(GetParam()).compare("true");
 
     strcpy(mURL, sResourceDir.c_str());
     GetURLForComponent(mURL);
@@ -404,24 +418,32 @@
     mTimestampDevTest = true;
     mFlushedIndices.clear();
     mTimestampUslist.clear();
-    uint32_t inputFrames = ENC_NUM_FRAMES;
+    int32_t inputFrames = ENC_NUM_FRAMES + (sendEmptyFirstFrame ? 1 : 0);
     uint32_t timestamp = 0;
+
     // Add input timestamp to timestampUslist
     while (inputFrames) {
         if (mTimestampDevTest) mTimestampUslist.push_back(timestamp);
         timestamp += ENCODER_TIMESTAMP_INCREMENT;
         inputFrames--;
     }
+
     if (!setupConfigParam(nWidth, nHeight)) {
         std::cout << "[   WARN   ] Test Skipped \n";
         return;
     }
     ASSERT_EQ(mComponent->start(), C2_OK);
+
+    if (sendEmptyFirstFrame) {
+        ASSERT_NO_FATAL_FAILURE(testInputBuffer(mComponent, mQueueLock, mWorkQueue, 0, false));
+        inputFrames += 1;
+    }
     ASSERT_NO_FATAL_FAILURE(encodeNFrames(mComponent, mQueueLock, mQueueCondition, mWorkQueue,
-                                          mFlushedIndices, mGraphicPool, eleStream, mDisableTest, 0,
-                                          ENC_NUM_FRAMES, nWidth, nHeight, false, signalEOS));
+                                          mFlushedIndices, mGraphicPool, eleStream, mDisableTest,
+                                          inputFrames, ENC_NUM_FRAMES, nWidth, nHeight, false,
+                                          signalEOS));
     // mDisableTest will be set if buffer was not fetched properly.
-    // This may happen when resolution is not proper but config suceeded
+    // This may happen when resolution is not proper but config succeeded
     // In this cases, we skip encoding the input stream
     if (mDisableTest) {
         std::cout << "[   WARN   ] Test Disabled \n";
@@ -430,7 +452,7 @@
     }
 
     // If EOS is not sent, sending empty input with EOS flag
-    inputFrames = ENC_NUM_FRAMES;
+    inputFrames += ENC_NUM_FRAMES;
     if (!signalEOS) {
         ASSERT_NO_FATAL_FAILURE(waitOnInputConsumption(mQueueLock, mQueueCondition, mWorkQueue, 1));
         ASSERT_NO_FATAL_FAILURE(testInputBuffer(mComponent, mQueueLock, mWorkQueue,
@@ -531,7 +553,7 @@
                                           mFlushedIndices, mGraphicPool, eleStream, mDisableTest, 0,
                                           numFramesFlushed, nWidth, nHeight));
     // mDisableTest will be set if buffer was not fetched properly.
-    // This may happen when resolution is not proper but config suceeded
+    // This may happen when resolution is not proper but config succeeded
     // In this cases, we skip encoding the input stream
     if (mDisableTest) {
         std::cout << "[   WARN   ] Test Disabled \n";
@@ -568,7 +590,7 @@
                                           nHeight, true));
     eleStream.close();
     // mDisableTest will be set if buffer was not fetched properly.
-    // This may happen when resolution is not proper but config suceeded
+    // This may happen when resolution is not proper but config succeeded
     // In this cases, we skip encoding the input stream
     if (mDisableTest) {
         std::cout << "[   WARN   ] Test Disabled \n";
@@ -677,7 +699,7 @@
                                           MAX_INPUT_BUFFERS, nWidth, nHeight, false, true));
 
     // mDisableTest will be set if buffer was not fetched properly.
-    // This may happen when resolution is not proper but config suceeded
+    // This may happen when resolution is not proper but config succeeded
     // In this cases, we skip encoding the input stream
     if (mDisableTest) {
         std::cout << "[   WARN   ] Test Disabled \n";
@@ -703,15 +725,105 @@
 INSTANTIATE_TEST_SUITE_P(EncodeTestwithEOS, Codec2VideoEncEncodeTest,
                          ::testing::ValuesIn(kEncodeTestParameters));
 
+TEST_P(Codec2VideoEncHidlTest, AdaptiveBitrateTest) {
+    description("Encodes input file for different bitrates");
+    if (mDisableTest) GTEST_SKIP() << "Test is disabled";
+
+    char mURL[512];
+
+    strcpy(mURL, sResourceDir.c_str());
+    GetURLForComponent(mURL);
+
+    std::ifstream eleStream;
+    eleStream.open(mURL, std::ifstream::binary);
+    ASSERT_EQ(eleStream.is_open(), true) << mURL << " file not found";
+    ALOGV("mURL : %s", mURL);
+
+    mFlushedIndices.clear();
+
+    int32_t nWidth = ENC_DEFAULT_FRAME_WIDTH;
+    int32_t nHeight = ENC_DEFAULT_FRAME_HEIGHT;
+    if (!setupConfigParam(nWidth, nHeight)) {
+        std::cout << "[   WARN   ] Test Skipped \n";
+        return;
+    }
+    ASSERT_EQ(mComponent->start(), C2_OK);
+
+    uint64_t prevOutputSize = 0u;
+    uint32_t bitrateValues[] = {100000, 64000, 200000};
+    uint32_t prevBitrate = 0;
+    int32_t inputFrameId = 0;
+
+    for (uint32_t curBitrate : bitrateValues) {
+        // Configuring bitrate
+        std::vector<std::unique_ptr<C2SettingResult>> failures;
+        C2StreamBitrateInfo::output bitrate(0u, curBitrate);
+        std::vector<C2Param*> configParam{&bitrate};
+        c2_status_t status = mComponent->config(configParam, C2_DONT_BLOCK, &failures);
+        if (status != C2_OK && failures.size() != 0u) {
+            ALOGW("BitRate Config failed, using previous bitrate");
+        }
+
+        ASSERT_NO_FATAL_FAILURE(encodeNFrames(mComponent, mQueueLock, mQueueCondition, mWorkQueue,
+                                              mFlushedIndices, mGraphicPool, eleStream,
+                                              mDisableTest, inputFrameId, ENC_NUM_FRAMES, nWidth,
+                                              nHeight, false, false));
+        // mDisableTest will be set if buffer was not fetched properly.
+        // This may happen when resolution is not proper but config succeeded
+        // In this cases, we skip encoding the input stream
+        if (mDisableTest) {
+            std::cout << "[   WARN   ] Test Disabled \n";
+            ASSERT_EQ(mComponent->stop(), C2_OK);
+            return;
+        }
+        inputFrameId += ENC_NUM_FRAMES;
+        // blocking call to ensures application to Wait till all the inputs are
+        // consumed
+        ALOGD("Waiting for input consumption");
+        waitOnInputConsumption(mQueueLock, mQueueCondition, mWorkQueue);
+
+        // Change in bitrate may result in different outputSize
+        if (prevBitrate >= curBitrate) {
+            EXPECT_LE(mOutputSize, prevOutputSize);
+        } else {
+            EXPECT_GE(mOutputSize, prevOutputSize);
+        }
+        prevBitrate = curBitrate;
+        prevOutputSize = mOutputSize;
+        // Reset the file pointer and output size
+        mOutputSize = 0;
+        eleStream.seekg(0, eleStream.beg);
+    }
+
+    // Sending empty input with EOS flag
+    ASSERT_NO_FATAL_FAILURE(testInputBuffer(mComponent, mQueueLock, mWorkQueue,
+                                            C2FrameData::FLAG_END_OF_STREAM, false));
+    inputFrameId += 1;
+    waitOnInputConsumption(mQueueLock, mQueueCondition, mWorkQueue);
+
+    eleStream.close();
+    if (mFramesReceived != inputFrameId) {
+        ALOGE("Input buffer count and Output buffer count mismatch");
+        ALOGE("framesReceived : %d inputFrames : %d", mFramesReceived, inputFrameId);
+        ASSERT_TRUE(false);
+    }
+
+    ASSERT_EQ(mComponent->stop(), C2_OK);
+}
+
 }  // anonymous namespace
 
 int main(int argc, char** argv) {
     kTestParameters = getTestParameters(C2Component::DOMAIN_VIDEO, C2Component::KIND_ENCODER);
     for (auto params : kTestParameters) {
         kEncodeTestParameters.push_back(
-                std::make_tuple(std::get<0>(params), std::get<1>(params), "true"));
+                std::make_tuple(std::get<0>(params), std::get<1>(params), "true", "true"));
         kEncodeTestParameters.push_back(
-                std::make_tuple(std::get<0>(params), std::get<1>(params), "false"));
+                std::make_tuple(std::get<0>(params), std::get<1>(params), "true", "false"));
+        kEncodeTestParameters.push_back(
+                std::make_tuple(std::get<0>(params), std::get<1>(params), "false", "true"));
+        kEncodeTestParameters.push_back(
+                std::make_tuple(std::get<0>(params), std::get<1>(params), "false", "false"));
 
         kEncodeResolutionTestParameters.push_back(
                 std::make_tuple(std::get<0>(params), std::get<1>(params), "52", "18"));
@@ -721,6 +833,10 @@
                 std::make_tuple(std::get<0>(params), std::get<1>(params), "484", "362"));
         kEncodeResolutionTestParameters.push_back(
                 std::make_tuple(std::get<0>(params), std::get<1>(params), "244", "488"));
+        kEncodeResolutionTestParameters.push_back(
+                std::make_tuple(std::get<0>(params), std::get<1>(params), "852", "608"));
+        kEncodeResolutionTestParameters.push_back(
+                std::make_tuple(std::get<0>(params), std::get<1>(params), "1400", "442"));
     }
 
     // Set the resource directory based on command line args.
@@ -734,4 +850,4 @@
 
     ::testing::InitGoogleTest(&argc, argv);
     return RUN_ALL_TESTS();
-}
\ No newline at end of file
+}
diff --git a/media/codec2/hidl/1.0/vts/functional/video/media_c2_video_hidl_test_common.h b/media/codec2/hidl/1.0/vts/functional/video/media_c2_video_hidl_test_common.h
index d3a693b..9c1a5cb 100644
--- a/media/codec2/hidl/1.0/vts/functional/video/media_c2_video_hidl_test_common.h
+++ b/media/codec2/hidl/1.0/vts/functional/video/media_c2_video_hidl_test_common.h
@@ -22,6 +22,7 @@
 #define ENC_DEFAULT_FRAME_WIDTH 352
 #define ENC_DEFAULT_FRAME_HEIGHT 288
 #define MAX_ITERATIONS 128
+#define FLAG_NON_DISPLAY_FRAME (1 << 4)
 
 #define ALIGN(_sz, _align) ((_sz + (_align - 1)) & ~(_align - 1))
 
diff --git a/media/codec2/sfplugin/CCodecBufferChannel.cpp b/media/codec2/sfplugin/CCodecBufferChannel.cpp
index e902b5d..3773528 100644
--- a/media/codec2/sfplugin/CCodecBufferChannel.cpp
+++ b/media/codec2/sfplugin/CCodecBufferChannel.cpp
@@ -1705,8 +1705,8 @@
         }
     }
 
-    if (!buffer && !flags) {
-        ALOGV("[%s] onWorkDone: Not reporting output buffer (%lld)",
+    if (!buffer && !flags && outputFormat == nullptr) {
+        ALOGV("[%s] onWorkDone: nothing to report from the work (%lld)",
               mName, work->input.ordinal.frameIndex.peekull());
         return true;
     }
diff --git a/media/codec2/vndk/C2AllocatorGralloc.cpp b/media/codec2/vndk/C2AllocatorGralloc.cpp
index 3ac3d89..e1e1377 100644
--- a/media/codec2/vndk/C2AllocatorGralloc.cpp
+++ b/media/codec2/vndk/C2AllocatorGralloc.cpp
@@ -520,6 +520,22 @@
             break;
         }
 
+        case static_cast<uint32_t>(PixelFormat4::BLOB): {
+            void *pointer = nullptr;
+            // TODO: fence
+            status_t err = GraphicBufferMapper::get().lock(
+                                const_cast<native_handle_t*>(mBuffer), grallocUsage,
+                                { (int32_t)rect.left, (int32_t)rect.top,
+                                  (int32_t)rect.width, (int32_t)rect.height },
+                                &pointer);
+            if (err) {
+                ALOGE("failed transaction: lock(BLOB)");
+                return C2_CORRUPTED;
+            }
+            *addr = (uint8_t *)pointer;
+            break;
+        }
+
         case static_cast<uint32_t>(PixelFormat4::YCBCR_420_888):
             // fall-through
         case static_cast<uint32_t>(PixelFormat4::YV12):
diff --git a/media/libmedia/aidl/android/media/IResourceManagerService.aidl b/media/libmedia/aidl/android/media/IResourceManagerService.aidl
index 3dd0859..1b2d522 100644
--- a/media/libmedia/aidl/android/media/IResourceManagerService.aidl
+++ b/media/libmedia/aidl/android/media/IResourceManagerService.aidl
@@ -94,4 +94,12 @@
      *        remove existing override on originalPid if newPid is -1.
      */
     void overridePid(int originalPid, int newPid);
+
+    /**
+     * Mark a client for pending removal
+     *
+     * @param pid pid from which the client's resources will be removed.
+     * @param clientId clientId within the pid that will be removed.
+     */
+    void markClientForPendingRemoval(int pid, long clientId);
 }
diff --git a/media/libmediametrics/include/MediaMetricsConstants.h b/media/libmediametrics/include/MediaMetricsConstants.h
index 00da69a..ec0e133 100644
--- a/media/libmediametrics/include/MediaMetricsConstants.h
+++ b/media/libmediametrics/include/MediaMetricsConstants.h
@@ -37,6 +37,11 @@
 // They must be appended with another value to make a key.
 #define AMEDIAMETRICS_KEY_PREFIX_AUDIO "audio."
 
+// The AudioMmap key appends the "trackId" to the prefix.
+// This is the AudioFlinger equivalent of the AAudio Stream.
+// TODO: unify with AMEDIAMETRICS_KEY_PREFIX_AUDIO_STREAM
+#define AMEDIAMETRICS_KEY_PREFIX_AUDIO_MMAP  AMEDIAMETRICS_KEY_PREFIX_AUDIO "mmap."
+
 // The AudioRecord key appends the "trackId" to the prefix.
 #define AMEDIAMETRICS_KEY_PREFIX_AUDIO_RECORD AMEDIAMETRICS_KEY_PREFIX_AUDIO "record."
 
@@ -95,6 +100,14 @@
 #define AMEDIAMETRICS_PROP_CHANNELCOUNT   "channelCount"   // int32
 #define AMEDIAMETRICS_PROP_CHANNELMASK    "channelMask"    // int32
 #define AMEDIAMETRICS_PROP_CONTENTTYPE    "contentType"    // string attributes (AudioTrack)
+#define AMEDIAMETRICS_PROP_CUMULATIVETIMENS "cumulativeTimeNs" // int64_t playback/record time
+                                                           // since start
+// DEVICE values are averaged since starting on device
+#define AMEDIAMETRICS_PROP_DEVICELATENCYMS "deviceLatencyMs" // double - avg latency time
+#define AMEDIAMETRICS_PROP_DEVICESTARTUPMS "deviceStartupMs" // double - avg startup time
+#define AMEDIAMETRICS_PROP_DEVICETIMENS   "deviceTimeNs"   // int64_t playback/record time
+#define AMEDIAMETRICS_PROP_DEVICEVOLUME   "deviceVolume"   // double - average device volume
+
 #define AMEDIAMETRICS_PROP_DIRECTION      "direction"      // string AAudio input or output
 #define AMEDIAMETRICS_PROP_DURATIONNS     "durationNs"     // int64 duration time span
 #define AMEDIAMETRICS_PROP_ENCODING       "encoding"       // string value of format
@@ -105,7 +118,9 @@
 
 #define AMEDIAMETRICS_PROP_FRAMECOUNT     "frameCount"     // int32
 #define AMEDIAMETRICS_PROP_INPUTDEVICES   "inputDevices"   // string value
+#define AMEDIAMETRICS_PROP_INTERVALCOUNT  "intervalCount"  // int32
 #define AMEDIAMETRICS_PROP_LATENCYMS      "latencyMs"      // double value
+#define AMEDIAMETRICS_PROP_NAME           "name"           // string value
 #define AMEDIAMETRICS_PROP_ORIGINALFLAGS  "originalFlags"  // int32
 #define AMEDIAMETRICS_PROP_OUTPUTDEVICES  "outputDevices"  // string value
 #define AMEDIAMETRICS_PROP_PERFORMANCEMODE "performanceMode"    // string value, "none", lowLatency"
@@ -129,6 +144,7 @@
 #define AMEDIAMETRICS_PROP_TRACKID        "trackId"        // int32 port id of track/record
 #define AMEDIAMETRICS_PROP_TYPE           "type"           // string (thread type)
 #define AMEDIAMETRICS_PROP_UNDERRUN       "underrun"       // int32
+#define AMEDIAMETRICS_PROP_UNDERRUNFRAMES "underrunFrames" // int64_t from Thread
 #define AMEDIAMETRICS_PROP_USAGE          "usage"          // string attributes (ATrack)
 #define AMEDIAMETRICS_PROP_VOLUME_LEFT    "volume.left"    // double (AudioTrack)
 #define AMEDIAMETRICS_PROP_VOLUME_RIGHT   "volume.right"   // double (AudioTrack)
@@ -140,12 +156,14 @@
 // Values are strings accepted for a given property.
 
 // An event is a general description, which often is a function name.
+#define AMEDIAMETRICS_PROP_EVENT_VALUE_BEGINAUDIOINTERVALGROUP "beginAudioIntervalGroup"
 #define AMEDIAMETRICS_PROP_EVENT_VALUE_CLOSE      "close"
 #define AMEDIAMETRICS_PROP_EVENT_VALUE_CREATE     "create"
 #define AMEDIAMETRICS_PROP_EVENT_VALUE_CREATEAUDIOPATCH "createAudioPatch"
 #define AMEDIAMETRICS_PROP_EVENT_VALUE_CTOR       "ctor"
 #define AMEDIAMETRICS_PROP_EVENT_VALUE_DISCONNECT "disconnect"
 #define AMEDIAMETRICS_PROP_EVENT_VALUE_DTOR       "dtor"
+#define AMEDIAMETRICS_PROP_EVENT_VALUE_ENDAUDIOINTERVALGROUP "endAudioIntervalGroup"
 #define AMEDIAMETRICS_PROP_EVENT_VALUE_FLUSH      "flush"  // AudioTrack
 #define AMEDIAMETRICS_PROP_EVENT_VALUE_INVALIDATE "invalidate" // server track, record
 #define AMEDIAMETRICS_PROP_EVENT_VALUE_OPEN       "open"
diff --git a/media/libstagefright/MediaCodec.cpp b/media/libstagefright/MediaCodec.cpp
index b597583..11f2f38 100644
--- a/media/libstagefright/MediaCodec.cpp
+++ b/media/libstagefright/MediaCodec.cpp
@@ -199,6 +199,7 @@
     void addResource(const MediaResourceParcel &resource);
     void removeResource(const MediaResourceParcel &resource);
     void removeClient();
+    void markClientForPendingRemoval();
     bool reclaimResource(const std::vector<MediaResourceParcel> &resources);
 
 private:
@@ -280,6 +281,14 @@
     mService->removeClient(mPid, getId(mClient));
 }
 
+void MediaCodec::ResourceManagerServiceProxy::markClientForPendingRemoval() {
+    Mutex::Autolock _l(mLock);
+    if (mService == nullptr) {
+        return;
+    }
+    mService->markClientForPendingRemoval(mPid, getId(mClient));
+}
+
 bool MediaCodec::ResourceManagerServiceProxy::reclaimResource(
         const std::vector<MediaResourceParcel> &resources) {
     Mutex::Autolock _l(mLock);
@@ -297,6 +306,33 @@
 
 ////////////////////////////////////////////////////////////////////////////////
 
+class MediaCodec::ReleaseSurface {
+public:
+    ReleaseSurface() {
+        BufferQueue::createBufferQueue(&mProducer, &mConsumer);
+        mSurface = new Surface(mProducer, false /* controlledByApp */);
+        struct ConsumerListener : public BnConsumerListener {
+            void onFrameAvailable(const BufferItem&) override {}
+            void onBuffersReleased() override {}
+            void onSidebandStreamChanged() override {}
+        };
+        sp<ConsumerListener> listener{new ConsumerListener};
+        mConsumer->consumerConnect(listener, false);
+        mConsumer->setConsumerName(String8{"MediaCodec.release"});
+    }
+
+    const sp<Surface> &getSurface() {
+        return mSurface;
+    }
+
+private:
+    sp<IGraphicBufferProducer> mProducer;
+    sp<IGraphicBufferConsumer> mConsumer;
+    sp<Surface> mSurface;
+};
+
+////////////////////////////////////////////////////////////////////////////////
+
 namespace {
 
 enum {
@@ -1432,7 +1468,13 @@
 
 status_t MediaCodec::release() {
     sp<AMessage> msg = new AMessage(kWhatRelease, this);
+    sp<AMessage> response;
+    return PostAndAwaitResponse(msg, &response);
+}
 
+status_t MediaCodec::releaseAsync() {
+    sp<AMessage> msg = new AMessage(kWhatRelease, this);
+    msg->setInt32("async", 1);
     sp<AMessage> response;
     return PostAndAwaitResponse(msg, &response);
 }
@@ -2600,7 +2642,9 @@
 
                     mResourceManagerProxy->removeClient();
 
-                    (new AMessage)->postReply(mReplyID);
+                    if (mReplyID != nullptr) {
+                        (new AMessage)->postReply(mReplyID);
+                    }
                     break;
                 }
 
@@ -2987,6 +3031,26 @@
                 break;
             }
 
+            int32_t async = 0;
+            if (msg->findInt32("async", &async) && async) {
+                if ((mState ==  CONFIGURED || mState == STARTED || mState == FLUSHED)
+                       && mSurface != NULL) {
+                    if (!mReleaseSurface) {
+                        mReleaseSurface.reset(new ReleaseSurface);
+                    }
+                    status_t err = connectToSurface(mReleaseSurface->getSurface());
+                    ALOGW_IF(err != OK, "error connecting to release surface: err = %d", err);
+                    if (err == OK && !(mFlags & kFlagUsesSoftwareRenderer)) {
+                        err = mCodec->setSurface(mReleaseSurface->getSurface());
+                        ALOGW_IF(err != OK, "error setting release surface: err = %d", err);
+                    }
+                    if (err == OK) {
+                        (void)disconnectFromSurface();
+                        mSurface = mReleaseSurface->getSurface();
+                    }
+                }
+            }
+
             mReplyID = replyID;
             setState(msg->what() == kWhatStop ? STOPPING : RELEASING);
 
@@ -2999,6 +3063,12 @@
                 pushBlankBuffersToNativeWindow(mSurface.get());
             }
 
+            if (async) {
+                mResourceManagerProxy->markClientForPendingRemoval();
+                (new AMessage)->postReply(mReplyID);
+                mReplyID = 0;
+            }
+
             break;
         }
 
diff --git a/media/libstagefright/include/media/stagefright/MediaCodec.h b/media/libstagefright/include/media/stagefright/MediaCodec.h
index 022c48e..63a9dad 100644
--- a/media/libstagefright/include/media/stagefright/MediaCodec.h
+++ b/media/libstagefright/include/media/stagefright/MediaCodec.h
@@ -139,6 +139,8 @@
     // object.
     status_t release();
 
+    status_t releaseAsync();
+
     status_t flush();
 
     status_t queueInputBuffer(
@@ -509,6 +511,9 @@
                                                  // when low latency is on
     int64_t mInputBufferCounter;  // number of input buffers queued since last reset/flush
 
+    class ReleaseSurface;
+    std::unique_ptr<ReleaseSurface> mReleaseSurface;
+
     sp<BatteryChecker> mBatteryChecker;
 
     void statsBufferSent(int64_t presentationUs);
diff --git a/services/audioflinger/AudioFlinger.h b/services/audioflinger/AudioFlinger.h
index 6afbd4f..20f561e 100644
--- a/services/audioflinger/AudioFlinger.h
+++ b/services/audioflinger/AudioFlinger.h
@@ -88,6 +88,8 @@
 #include "SpdifStreamOut.h"
 #include "AudioHwDevice.h"
 #include "NBAIO_Tee.h"
+#include "ThreadMetrics.h"
+#include "TrackMetrics.h"
 
 #include <powermanager/IPowerManager.h>
 
diff --git a/services/audioflinger/PlaybackTracks.h b/services/audioflinger/PlaybackTracks.h
index 1ff03c4..d8eebf3 100644
--- a/services/audioflinger/PlaybackTracks.h
+++ b/services/audioflinger/PlaybackTracks.h
@@ -171,6 +171,16 @@
 
             void    setTeePatches(TeePatches teePatches);
 
+    void tallyUnderrunFrames(size_t frames) override {
+       if (isOut()) { // we expect this from output tracks only
+           mAudioTrackServerProxy->tallyUnderrunFrames(frames);
+           // Fetch absolute numbers from AudioTrackShared as it counts
+           // contiguous underruns as a one -- we want a consistent number.
+           // TODO: isolate this counting into a class.
+           mTrackMetrics.logUnderruns(mAudioTrackServerProxy->getUnderrunCount(),
+                   mAudioTrackServerProxy->getUnderrunFrames());
+       }
+    }
 protected:
     // for numerous
     friend class PlaybackThread;
diff --git a/services/audioflinger/ThreadMetrics.h b/services/audioflinger/ThreadMetrics.h
new file mode 100644
index 0000000..7989de1
--- /dev/null
+++ b/services/audioflinger/ThreadMetrics.h
@@ -0,0 +1,196 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_AUDIO_THREADMETRICS_H
+#define ANDROID_AUDIO_THREADMETRICS_H
+
+#include <mutex>
+
+namespace android {
+
+/**
+ * ThreadMetrics handles the AudioFlinger thread log statistics.
+ *
+ * We aggregate metrics for a particular device for proper analysis.
+ * This includes power, performance, and usage metrics.
+ *
+ * This class is thread-safe with a lock for safety.  There is no risk of deadlock
+ * as this class only executes external one-way calls in Mediametrics and does not
+ * call any other AudioFlinger class.
+ *
+ * Terminology:
+ * An AudioInterval is a contiguous playback segment.
+ * An AudioIntervalGroup is a group of continuous playback segments on the same device.
+ *
+ * We currently deliver metrics based on an AudioIntervalGroup.
+ */
+class ThreadMetrics final {
+public:
+    ThreadMetrics(std::string metricsId, bool isOut)
+        : mMetricsId(std::move(metricsId))
+        , mIsOut(isOut)
+        {}
+
+    ~ThreadMetrics() {
+        logEndInterval(); // close any open interval groups
+        std::lock_guard l(mLock);
+        deliverCumulativeMetrics(AMEDIAMETRICS_PROP_EVENT_VALUE_ENDAUDIOINTERVALGROUP);
+        mediametrics::LogItem(mMetricsId)
+            .set(AMEDIAMETRICS_PROP_EVENT, AMEDIAMETRICS_PROP_EVENT_VALUE_DTOR)
+            .record();
+    }
+
+    // Called under the following circumstances
+    // 1) Upon a createPatch and we are not in standby
+    // 2) We come out of standby
+    void logBeginInterval() {
+        std::lock_guard l(mLock);
+        if (mDevices != mCreatePatchDevices) {
+            deliverCumulativeMetrics(AMEDIAMETRICS_PROP_EVENT_VALUE_ENDAUDIOINTERVALGROUP);
+            mDevices = mCreatePatchDevices; // set after endAudioIntervalGroup
+            resetIntervalGroupMetrics();
+            deliverDeviceMetrics(
+                    AMEDIAMETRICS_PROP_EVENT_VALUE_BEGINAUDIOINTERVALGROUP, mDevices.c_str());
+        }
+        if (mIntervalStartTimeNs == 0) {
+            ++mIntervalCount;
+            mIntervalStartTimeNs = systemTime();
+        }
+    }
+
+    void logConstructor(pid_t pid, const char *threadType, int32_t id) const {
+        mediametrics::LogItem(mMetricsId)
+            .setPid(pid)
+            .set(AMEDIAMETRICS_PROP_EVENT, AMEDIAMETRICS_PROP_EVENT_VALUE_CTOR)
+            .set(AMEDIAMETRICS_PROP_TYPE, threadType)
+            .set(AMEDIAMETRICS_PROP_THREADID, id)
+            .record();
+    }
+
+    void logCreatePatch(const std::string& devices) {
+        std::lock_guard l(mLock);
+        mCreatePatchDevices = devices;
+        mediametrics::LogItem(mMetricsId)
+            .set(AMEDIAMETRICS_PROP_EVENT, AMEDIAMETRICS_PROP_EVENT_VALUE_CREATEAUDIOPATCH)
+            .set(AMEDIAMETRICS_PROP_OUTPUTDEVICES, devices)
+            .record();
+    }
+
+    // Called when we are removed from the Thread.
+    void logEndInterval() {
+        std::lock_guard l(mLock);
+        if (mIntervalStartTimeNs != 0) {
+            const int64_t elapsedTimeNs = systemTime() - mIntervalStartTimeNs;
+            mIntervalStartTimeNs = 0;
+            mCumulativeTimeNs += elapsedTimeNs;
+            mDeviceTimeNs += elapsedTimeNs;
+        }
+    }
+
+    void logThrottleMs(double throttleMs) const {
+        mediametrics::LogItem(mMetricsId)
+            // ms units always double
+            .set(AMEDIAMETRICS_PROP_THROTTLEMS, (double)throttleMs)
+            .record();
+    }
+
+    void logLatency(double latencyMs) {
+        mediametrics::LogItem(mMetricsId)
+            .set(AMEDIAMETRICS_PROP_LATENCYMS, latencyMs)
+            .record();
+        std::lock_guard l(mLock);
+        mDeviceLatencyMs.add(latencyMs);
+    }
+
+    // TODO: further implement this.
+    void logUnderrunFrames(size_t count, size_t frames) {
+        std::lock_guard l(mLock);
+        mUnderrunCount = count;
+        mUnderrunFrames = frames;
+    }
+
+    const std::string& getMetricsId() const {
+        return mMetricsId;
+    }
+
+private:
+    // no lock required - all arguments and constants.
+    void deliverDeviceMetrics(const char *eventName, const char *devices) const {
+        mediametrics::LogItem(mMetricsId)
+            .set(AMEDIAMETRICS_PROP_EVENT, eventName)
+            .set(mIsOut ? AMEDIAMETRICS_PROP_OUTPUTDEVICES
+                   : AMEDIAMETRICS_PROP_INPUTDEVICES, devices)
+           .record();
+    }
+
+    void deliverCumulativeMetrics(const char *eventName) const REQUIRES(mLock) {
+        if (mIntervalCount > 0) {
+            mediametrics::LogItem item(mMetricsId);
+            item.set(AMEDIAMETRICS_PROP_CUMULATIVETIMENS, mCumulativeTimeNs)
+                .set(AMEDIAMETRICS_PROP_DEVICETIMENS, mDeviceTimeNs)
+                .set(AMEDIAMETRICS_PROP_EVENT, eventName)
+                .set(AMEDIAMETRICS_PROP_INTERVALCOUNT, (int32_t)mIntervalCount);
+            if (mDeviceLatencyMs.getN() > 0) {
+                item.set(AMEDIAMETRICS_PROP_DEVICELATENCYMS, mDeviceLatencyMs.getMean());
+            }
+            if (mUnderrunCount > 0) {
+                item.set(AMEDIAMETRICS_PROP_UNDERRUN, (int32_t)mUnderrunCount)
+                    .set(AMEDIAMETRICS_PROP_UNDERRUNFRAMES, (int64_t)mUnderrunFrames);
+            }
+            item.record();
+        }
+    }
+
+    void resetIntervalGroupMetrics() REQUIRES(mLock) {
+        // mDevices is not reset by clear
+
+        mIntervalCount = 0;
+        mIntervalStartTimeNs = 0;
+        // mCumulativeTimeNs is not reset by clear.
+        mDeviceTimeNs = 0;
+
+        mDeviceLatencyMs.reset();
+
+        mUnderrunCount = 0;
+        mUnderrunFrames = 0;
+    }
+
+    const std::string mMetricsId;
+    const bool        mIsOut;  // if true, than a playback track, otherwise used for record.
+
+    mutable           std::mutex mLock;
+
+    // Devices in the interval group.
+    std::string       mDevices GUARDED_BY(mLock);
+    std::string       mCreatePatchDevices GUARDED_BY(mLock);
+
+    // Number of intervals and playing time
+    int32_t           mIntervalCount GUARDED_BY(mLock) = 0;
+    int64_t           mIntervalStartTimeNs GUARDED_BY(mLock) = 0;
+    int64_t           mCumulativeTimeNs GUARDED_BY(mLock) = 0;
+    int64_t           mDeviceTimeNs GUARDED_BY(mLock) = 0;
+
+    // latency and startup for each interval.
+    audio_utils::Statistics<double> mDeviceLatencyMs GUARDED_BY(mLock);
+
+    // underrun count and frames
+    int64_t           mUnderrunCount GUARDED_BY(mLock) = 0;
+    int64_t           mUnderrunFrames GUARDED_BY(mLock) = 0;
+};
+
+} // namespace android
+
+#endif // ANDROID_AUDIO_THREADMETRICS_H
diff --git a/services/audioflinger/Threads.cpp b/services/audioflinger/Threads.cpp
index 5d9c35a..594baf8 100644
--- a/services/audioflinger/Threads.cpp
+++ b/services/audioflinger/Threads.cpp
@@ -220,6 +220,9 @@
 {
     std::stringstream ss;
     for (size_t i = 0; i < patch->num_sinks; ++i) {
+        if (i > 0) {
+            ss << "|";
+        }
         ss << "(" << toString(patch->sinks[i].ext.device.type)
             << ", " << patch->sinks[i].ext.device.address << ")";
     }
@@ -230,6 +233,9 @@
 {
     std::stringstream ss;
     for (size_t i = 0; i < patch->num_sources; ++i) {
+        if (i > 0) {
+            ss << "|";
+        }
         ss << "(" << toString(patch->sources[i].ext.device.type)
             << ", " << patch->sources[i].ext.device.address << ")";
     }
@@ -486,11 +492,13 @@
 }
 
 AudioFlinger::ThreadBase::ThreadBase(const sp<AudioFlinger>& audioFlinger, audio_io_handle_t id,
-        type_t type, bool systemReady)
+        type_t type, bool systemReady, bool isOut)
     :   Thread(false /*canCallJava*/),
         mType(type),
         mAudioFlinger(audioFlinger),
-        mMetricsId(std::string(AMEDIAMETRICS_KEY_PREFIX_AUDIO_THREAD) + std::to_string(id)),
+        mThreadMetrics(std::string(AMEDIAMETRICS_KEY_PREFIX_AUDIO_THREAD) + std::to_string(id),
+               isOut),
+        mIsOut(isOut),
         // mSampleRate, mFrameCount, mChannelMask, mChannelCount, mFrameSize, mFormat, mBufferSize
         // are set by PlaybackThread::readOutputParameters_l() or
         // RecordThread::readInputParameters_l()
@@ -502,13 +510,7 @@
         mSystemReady(systemReady),
         mSignalPending(false)
 {
-    mediametrics::LogItem(mMetricsId)
-        .setPid(getpid())
-        .set(AMEDIAMETRICS_PROP_EVENT, AMEDIAMETRICS_PROP_EVENT_VALUE_CTOR)
-        .set(AMEDIAMETRICS_PROP_TYPE, threadTypeToString(type))
-        .set(AMEDIAMETRICS_PROP_THREADID, id)
-        .record();
-
+    mThreadMetrics.logConstructor(getpid(), threadTypeToString(type), id);
     memset(&mPatch, 0, sizeof(struct audio_patch));
 }
 
@@ -525,10 +527,6 @@
     }
 
     sendStatistics(true /* force */);
-
-    mediametrics::LogItem(mMetricsId)
-        .set(AMEDIAMETRICS_PROP_EVENT, AMEDIAMETRICS_PROP_EVENT_VALUE_DTOR)
-        .record();
 }
 
 status_t AudioFlinger::ThreadBase::readyToRun()
@@ -1686,6 +1684,7 @@
 #ifdef TEE_SINK
     track->dumpTee(-1 /* fd */, "_REMOVE");
 #endif
+    track->logEndInterval(); // log to MediaMetrics
     return index;
 }
 
@@ -1828,7 +1827,7 @@
                                              audio_io_handle_t id,
                                              type_t type,
                                              bool systemReady)
-    :   ThreadBase(audioFlinger, id, type, systemReady),
+    :   ThreadBase(audioFlinger, id, type, systemReady, true /* isOut */),
         mNormalFrameCount(0), mSinkBuffer(NULL),
         mMixerBufferEnabled(AudioFlinger::kEnableExtendedPrecision),
         mMixerBuffer(NULL),
@@ -2553,6 +2552,7 @@
             chain->incActiveTrackCnt();
         }
 
+        track->logBeginInterval(patchSinksToString(&mPatch)); // log to MediaMetrics
         status = NO_ERROR;
     }
 
@@ -2876,7 +2876,7 @@
     }
 
     audio_output_flags_t flags = mOutput->flags;
-    mediametrics::LogItem item(mMetricsId);
+    mediametrics::LogItem item(mThreadMetrics.getMetricsId()); // TODO: method in ThreadMetrics?
     item.set(AMEDIAMETRICS_PROP_EVENT, AMEDIAMETRICS_PROP_EVENT_VALUE_READPARAMETERS)
         .set(AMEDIAMETRICS_PROP_ENCODING, formatToString(mFormat).c_str())
         .set(AMEDIAMETRICS_PROP_SAMPLERATE, (int32_t)mSampleRate)
@@ -3134,7 +3134,10 @@
 
     mNumWrites++;
     mInWrite = false;
-    mStandby = false;
+    if (mStandby) {
+        mThreadMetrics.logBeginInterval();
+        mStandby = false;
+    }
     return bytesWritten;
 }
 
@@ -3673,8 +3676,9 @@
                     // This is where we go into standby
                     if (!mStandby) {
                         LOG_AUDIO_STATE();
+                        mThreadMetrics.logEndInterval();
+                        mStandby = true;
                     }
-                    mStandby = true;
                     sendStatistics(false /* force */);
                 }
 
@@ -3978,10 +3982,7 @@
 
                         const int32_t throttleMs = (int32_t)mHalfBufferMs - deltaMs;
                         if ((signed)mHalfBufferMs >= throttleMs && throttleMs > 0) {
-                            mediametrics::LogItem(mMetricsId)
-                                // ms units always double
-                                .set(AMEDIAMETRICS_PROP_THROTTLEMS, (double)throttleMs)
-                                .record();
+                            mThreadMetrics.logThrottleMs((double)throttleMs);
 
                             usleep(throttleMs * 1000);
                             // notify of throttle start on verbose log
@@ -4256,10 +4257,16 @@
         status = mOutput->stream->setParameters(param.toString());
         *handle = AUDIO_PATCH_HANDLE_NONE;
     }
-    mediametrics::LogItem(mMetricsId)
-        .set(AMEDIAMETRICS_PROP_EVENT, AMEDIAMETRICS_PROP_EVENT_VALUE_CREATEAUDIOPATCH)
-        .set(AMEDIAMETRICS_PROP_OUTPUTDEVICES, patchSinksToString(patch).c_str())
-        .record();
+    const std::string patchSinksAsString = patchSinksToString(patch);
+
+    mThreadMetrics.logEndInterval();
+    mThreadMetrics.logCreatePatch(patchSinksAsString);
+    mThreadMetrics.logBeginInterval();
+    // also dispatch to active AudioTracks for MediaMetrics
+    for (const auto &track : mActiveTracks) {
+        track->logEndInterval();
+        track->logBeginInterval(patchSinksAsString);
+    }
 
     if (configChanged) {
         sendIoConfigEvent_l(AUDIO_OUTPUT_CONFIG_CHANGED);
@@ -4802,9 +4809,8 @@
     // DeferredOperations handles statistics after setting mixerStatus.
     class DeferredOperations {
     public:
-        DeferredOperations(mixer_state *mixerStatus, const std::string &metricsId)
-            : mMixerStatus(mixerStatus)
-            , mMetricsId(metricsId) {}
+        explicit DeferredOperations(mixer_state *mixerStatus)
+            : mMixerStatus(mixerStatus) {}
 
         // when leaving scope, tally frames properly.
         ~DeferredOperations() {
@@ -4812,19 +4818,9 @@
             // because that is when the underrun occurs.
             // We do not distinguish between FastTracks and NormalTracks here.
             if (*mMixerStatus == MIXER_TRACKS_READY && mUnderrunFrames.size() > 0) {
-                mediametrics::LogItem item(mMetricsId);
-
-                item.set(AMEDIAMETRICS_PROP_EVENT, AMEDIAMETRICS_PROP_EVENT_VALUE_UNDERRUN);
                 for (const auto &underrun : mUnderrunFrames) {
-                    underrun.first->mAudioTrackServerProxy->tallyUnderrunFrames(
-                            underrun.second);
-
-                    item.set(std::string("[" AMEDIAMETRICS_KEY_PREFIX_AUDIO_TRACK)
-                            + std::to_string(underrun.first->portId())
-                            + "]" AMEDIAMETRICS_PROP_UNDERRUN,
-                            (int32_t)underrun.second);
+                    underrun.first->tallyUnderrunFrames(underrun.second);
                 }
-                item.record();
             }
         }
 
@@ -4837,9 +4833,8 @@
 
     private:
         const mixer_state * const mMixerStatus;
-        const std::string& mMetricsId;
         std::vector<std::pair<sp<Track>, size_t>> mUnderrunFrames;
-    } deferredOperations(&mixerStatus, mMetricsId);
+    } deferredOperations(&mixerStatus);
     // implicit nested scope for variable capture
 
     bool noFastHapticTrack = true;
@@ -5578,7 +5573,10 @@
         status = mOutput->stream->setParameters(keyValuePair);
         if (!mStandby && status == INVALID_OPERATION) {
             mOutput->standby();
-            mStandby = true;
+            if (!mStandby) {
+                mThreadMetrics.logEndInterval();
+                mStandby = true;
+            }
             mBytesWritten = 0;
             status = mOutput->stream->setParameters(keyValuePair);
         }
@@ -6091,7 +6089,10 @@
         status = mOutput->stream->setParameters(keyValuePair);
         if (!mStandby && status == INVALID_OPERATION) {
             mOutput->standby();
-            mStandby = true;
+            if (!mStandby) {
+                mThreadMetrics.logEndInterval();
+                mStandby = true;
+            }
             mBytesWritten = 0;
             status = mOutput->stream->setParameters(keyValuePair);
         }
@@ -6686,7 +6687,10 @@
 
         // TODO: Report correction for the other output tracks and show in the dump.
     }
-    mStandby = false;
+    if (mStandby) {
+        mThreadMetrics.logBeginInterval();
+        mStandby = false;
+    }
     return (ssize_t)mSinkBufferSize;
 }
 
@@ -6848,7 +6852,7 @@
                                          audio_io_handle_t id,
                                          bool systemReady
                                          ) :
-    ThreadBase(audioFlinger, id, RECORD, systemReady),
+    ThreadBase(audioFlinger, id, RECORD, systemReady, false /* isOut */),
     mInput(input),
     mSource(mInput),
     mActiveTracks(&this->mLocalLog),
@@ -7136,7 +7140,10 @@
 
                 case TrackBase::STARTING_2:
                     doBroadcast = true;
-                    mStandby = false;
+                    if (mStandby) {
+                        mThreadMetrics.logBeginInterval();
+                        mStandby = false;
+                    }
                     activeTrack->mState = TrackBase::ACTIVE;
                     allStopped = false;
                     break;
@@ -7577,6 +7584,7 @@
 {
     if (!mStandby) {
         inputStandBy();
+        mThreadMetrics.logEndInterval();
         mStandby = true;
     }
 }
@@ -7881,6 +7889,9 @@
             sendIoConfigEvent_l(
                 AUDIO_CLIENT_STARTED, recordTrack->creatorPid(), recordTrack->portId());
         }
+
+        recordTrack->logBeginInterval(patchSourcesToString(&mPatch)); // log to MediaMetrics
+
         // Catch up with current buffer indices if thread is already running.
         // This is what makes a new client discard all buffered data.  If the track's mRsmpInFront
         // was initialized to some value closer to the thread's mRsmpInFront, then the track could
@@ -8545,12 +8556,15 @@
         mPatch = *patch;
     }
 
-    mediametrics::LogItem(mMetricsId)
-        .set(AMEDIAMETRICS_PROP_EVENT, AMEDIAMETRICS_PROP_EVENT_VALUE_CREATEAUDIOPATCH)
-        .set(AMEDIAMETRICS_PROP_INPUTDEVICES, patchSourcesToString(patch).c_str())
-        .set(AMEDIAMETRICS_PROP_SOURCE, toString(mAudioSource).c_str())
-        .record();
-
+    const std::string pathSourcesAsString = patchSourcesToString(patch);
+    mThreadMetrics.logEndInterval();
+    mThreadMetrics.logCreatePatch(pathSourcesAsString);
+    mThreadMetrics.logBeginInterval();
+    // also dispatch to active AudioRecords
+    for (const auto &track : mActiveTracks) {
+        track->logEndInterval();
+        track->logBeginInterval(pathSourcesAsString);
+    }
     return status;
 }
 
@@ -8657,8 +8671,8 @@
 
 AudioFlinger::MmapThread::MmapThread(
         const sp<AudioFlinger>& audioFlinger, audio_io_handle_t id,
-        AudioHwDevice *hwDev, sp<StreamHalInterface> stream, bool systemReady)
-    : ThreadBase(audioFlinger, id, MMAP, systemReady),
+        AudioHwDevice *hwDev, sp<StreamHalInterface> stream, bool systemReady, bool isOut)
+    : ThreadBase(audioFlinger, id, MMAP, systemReady, isOut),
       mSessionId(AUDIO_SESSION_NONE),
       mPortId(AUDIO_PORT_HANDLE_NONE),
       mHalStream(stream), mHalDevice(hwDev->hwDevice()), mAudioHwDev(hwDev),
@@ -8741,7 +8755,10 @@
         ALOGE("%s: error mHalStream->start() = %d for first track", __FUNCTION__, ret);
         return ret;
     }
-    mStandby = false;
+    if (mStandby) {
+        mThreadMetrics.logBeginInterval();
+        mStandby = false;
+    }
     return NO_ERROR;
 }
 
@@ -8861,6 +8878,7 @@
         chain->incActiveTrackCnt();
     }
 
+    track->logBeginInterval(patchSinksToString(&mPatch)); // log to MediaMetrics
     *handle = portId;
     broadcast_l();
 
@@ -8929,7 +8947,10 @@
         return INVALID_OPERATION;
     }
     mHalStream->standby();
-    mStandby = true;
+    if (!mStandby) {
+        mThreadMetrics.logEndInterval();
+        mStandby = true;
+    }
     releaseWakeLock();
     return NO_ERROR;
 }
@@ -8946,6 +8967,27 @@
     result = mHalStream->getBufferSize(&mBufferSize);
     LOG_ALWAYS_FATAL_IF(result != OK, "Error retrieving buffer size from HAL: %d", result);
     mFrameCount = mBufferSize / mFrameSize;
+
+    // TODO: make a readHalParameters call?
+    mediametrics::LogItem item(mThreadMetrics.getMetricsId());
+    item.set(AMEDIAMETRICS_PROP_EVENT, AMEDIAMETRICS_PROP_EVENT_VALUE_READPARAMETERS)
+        .set(AMEDIAMETRICS_PROP_ENCODING, formatToString(mFormat).c_str())
+        .set(AMEDIAMETRICS_PROP_SAMPLERATE, (int32_t)mSampleRate)
+        .set(AMEDIAMETRICS_PROP_CHANNELMASK, (int32_t)mChannelMask)
+        .set(AMEDIAMETRICS_PROP_CHANNELCOUNT, (int32_t)mChannelCount)
+        .set(AMEDIAMETRICS_PROP_FRAMECOUNT, (int32_t)mFrameCount)
+        /*
+        .set(AMEDIAMETRICS_PROP_FLAGS, toString(flags).c_str())
+        .set(AMEDIAMETRICS_PROP_PREFIX_HAPTIC AMEDIAMETRICS_PROP_CHANNELMASK,
+                (int32_t)mHapticChannelMask)
+        .set(AMEDIAMETRICS_PROP_PREFIX_HAPTIC AMEDIAMETRICS_PROP_CHANNELCOUNT,
+                (int32_t)mHapticChannelCount)
+        */
+        .set(AMEDIAMETRICS_PROP_PREFIX_HAL    AMEDIAMETRICS_PROP_ENCODING,
+                formatToString(mHALFormat).c_str())
+        .set(AMEDIAMETRICS_PROP_PREFIX_HAL    AMEDIAMETRICS_PROP_FRAMECOUNT,
+                (int32_t)mFrameCount) // sic - added HAL
+        .record();
 }
 
 bool AudioFlinger::MmapThread::threadLoop()
@@ -9357,7 +9399,7 @@
 AudioFlinger::MmapPlaybackThread::MmapPlaybackThread(
         const sp<AudioFlinger>& audioFlinger, audio_io_handle_t id,
         AudioHwDevice *hwDev,  AudioStreamOut *output, bool systemReady)
-    : MmapThread(audioFlinger, id, hwDev, output->stream, systemReady),
+    : MmapThread(audioFlinger, id, hwDev, output->stream, systemReady, true /* isOut */),
       mStreamType(AUDIO_STREAM_MUSIC),
       mStreamVolume(1.0),
       mStreamMute(false),
@@ -9568,7 +9610,7 @@
 AudioFlinger::MmapCaptureThread::MmapCaptureThread(
         const sp<AudioFlinger>& audioFlinger, audio_io_handle_t id,
         AudioHwDevice *hwDev,  AudioStreamIn *input, bool systemReady)
-    : MmapThread(audioFlinger, id, hwDev, input->stream, systemReady),
+    : MmapThread(audioFlinger, id, hwDev, input->stream, systemReady, false /* isOut */),
       mInput(input)
 {
     snprintf(mThreadName, kThreadNameLength, "AudioMmapIn_%X", id);
diff --git a/services/audioflinger/Threads.h b/services/audioflinger/Threads.h
index e5a6196..5b8c081 100644
--- a/services/audioflinger/Threads.h
+++ b/services/audioflinger/Threads.h
@@ -37,7 +37,7 @@
     static const char *threadTypeToString(type_t type);
 
     ThreadBase(const sp<AudioFlinger>& audioFlinger, audio_io_handle_t id,
-               type_t type, bool systemReady);
+               type_t type, bool systemReady, bool isOut);
     virtual             ~ThreadBase();
 
     virtual status_t    readyToRun();
@@ -330,7 +330,7 @@
                     return mInDeviceTypeAddr;
                 }
 
-    virtual     bool        isOutput() const = 0;
+                bool        isOutput() const { return mIsOut; }
 
     virtual     sp<StreamHalInterface> stream() const = 0;
 
@@ -524,7 +524,8 @@
                 Condition               mWaitWorkCV;
 
                 const sp<AudioFlinger>  mAudioFlinger;
-                const std::string       mMetricsId;
+                ThreadMetrics           mThreadMetrics;
+                const bool              mIsOut;
 
                 // updated by PlaybackThread::readOutputParameters_l() or
                 // RecordThread::readInputParameters_l()
@@ -911,9 +912,6 @@
 
                 // Return the asynchronous signal wait time.
     virtual     int64_t     computeWaitTimeNs_l() const { return INT64_MAX; }
-
-    virtual     bool        isOutput() const override { return true; }
-
                 // returns true if the track is allowed to be added to the thread.
     virtual     bool        isTrackAllowed_l(
                                     audio_channel_mask_t channelMask __unused,
@@ -1651,7 +1649,6 @@
                             ThreadBase::acquireWakeLock_l();
                             mActiveTracks.updatePowerState(this, true /* force */);
                         }
-    virtual bool        isOutput() const override { return false; }
 
             void        checkBtNrec();
 
@@ -1760,7 +1757,8 @@
 #include "MmapTracks.h"
 
     MmapThread(const sp<AudioFlinger>& audioFlinger, audio_io_handle_t id,
-               AudioHwDevice *hwDev, sp<StreamHalInterface> stream, bool systemReady);
+               AudioHwDevice *hwDev, sp<StreamHalInterface> stream, bool systemReady,
+               bool isOut);
     virtual     ~MmapThread();
 
     virtual     void        configure(const audio_attributes_t *attr,
@@ -1888,8 +1886,6 @@
     virtual     void        checkSilentMode_l();
                 void        processVolume_l() override;
 
-    virtual     bool        isOutput() const override { return true; }
-
                 void        updateMetadata_l() override;
 
     virtual     void        toAudioPortConfig(struct audio_port_config *config);
@@ -1916,7 +1912,6 @@
                 AudioStreamIn* clearInput();
 
                 status_t       exitStandby() override;
-    virtual     bool           isOutput() const override { return false; }
 
                 void           updateMetadata_l() override;
                 void           processVolume_l() override;
diff --git a/services/audioflinger/TrackBase.h b/services/audioflinger/TrackBase.h
index e39b944..15c66fb 100644
--- a/services/audioflinger/TrackBase.h
+++ b/services/audioflinger/TrackBase.h
@@ -97,10 +97,7 @@
 
     virtual void        invalidate() {
                             if (mIsInvalid) return;
-                            mediametrics::LogItem(mMetricsId)
-                                .set(AMEDIAMETRICS_PROP_EVENT,
-                                     AMEDIAMETRICS_PROP_EVENT_VALUE_INVALIDATE)
-                                .record();
+                            mTrackMetrics.logInvalidate();
                             mIsInvalid = true;
                         }
             bool        isInvalid() const { return mIsInvalid; }
@@ -242,6 +239,20 @@
         }
     }
 
+    // Called by the PlaybackThread to indicate that the track is becoming active
+    // and a new interval should start with a given device list.
+    void logBeginInterval(const std::string& devices) {
+        mTrackMetrics.logBeginInterval(devices);
+    }
+
+    // Called by the PlaybackThread to indicate the track is no longer active.
+    void logEndInterval() {
+        mTrackMetrics.logEndInterval();
+    }
+
+    // Called to tally underrun frames in playback.
+    virtual void tallyUnderrunFrames(size_t /* frames */) {}
+
 protected:
     DISALLOW_COPY_AND_ASSIGN(TrackBase);
 
@@ -367,7 +378,7 @@
     int64_t             mLogStartTimeNs = 0;
     int64_t             mLogStartFrames = 0;
 
-    const std::string   mMetricsId;
+    TrackMetrics        mTrackMetrics;
 
     bool                mServerLatencySupported = false;
     std::atomic<bool>   mServerLatencyFromTrack{}; // latency from track or server timestamp.
diff --git a/services/audioflinger/TrackMetrics.h b/services/audioflinger/TrackMetrics.h
new file mode 100644
index 0000000..399c788
--- /dev/null
+++ b/services/audioflinger/TrackMetrics.h
@@ -0,0 +1,222 @@
+/*
+ * Copyright (C) 2020 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_AUDIO_TRACKMETRICS_H
+#define ANDROID_AUDIO_TRACKMETRICS_H
+
+#include <mutex>
+
+namespace android {
+
+/**
+ * TrackMetrics handles the AudioFlinger track metrics.
+ *
+ * We aggregate metrics for a particular device for proper analysis.
+ * This includes power, performance, and usage metrics.
+ *
+ * This class is thread-safe with a lock for safety.  There is no risk of deadlock
+ * as this class only executes external one-way calls in Mediametrics and does not
+ * call any other AudioFlinger class.
+ *
+ * Terminology:
+ * An AudioInterval is a contiguous playback segment.
+ * An AudioIntervalGroup is a group of continuous playback segments on the same device.
+ *
+ * We currently deliver metrics based on an AudioIntervalGroup.
+ */
+class TrackMetrics final {
+public:
+    TrackMetrics(std::string metricsId, bool isOut)
+        : mMetricsId(std::move(metricsId))
+        , mIsOut(isOut)
+        {}  // we don't log a constructor item, we wait for more info in logConstructor().
+
+    ~TrackMetrics() {
+        logEndInterval();
+        std::lock_guard l(mLock);
+        deliverCumulativeMetrics(AMEDIAMETRICS_PROP_EVENT_VALUE_ENDAUDIOINTERVALGROUP);
+        // we don't log a destructor item here.
+    }
+
+    // Called under the following circumstances
+    // 1) when we are added to the Thread
+    // 2) when we have a createPatch in the Thread.
+    void logBeginInterval(const std::string& devices) {
+        std::lock_guard l(mLock);
+        if (mDevices != devices) {
+            deliverCumulativeMetrics(AMEDIAMETRICS_PROP_EVENT_VALUE_ENDAUDIOINTERVALGROUP);
+            mDevices = devices;
+            resetIntervalGroupMetrics();
+            deliverDeviceMetrics(
+                    AMEDIAMETRICS_PROP_EVENT_VALUE_BEGINAUDIOINTERVALGROUP, devices.c_str());
+        }
+        ++mIntervalCount;
+        mIntervalStartTimeNs = systemTime();
+    }
+
+    void logConstructor(pid_t creatorPid, uid_t creatorUid) const {
+        // Once this item is logged by the server, the client can add properties.
+        // no lock required, all local or const variables.
+        mediametrics::LogItem(mMetricsId)
+            .setPid(creatorPid)
+            .setUid(creatorUid)
+            .set(AMEDIAMETRICS_PROP_ALLOWUID, (int32_t)creatorUid)
+            .set(AMEDIAMETRICS_PROP_EVENT,
+                    AMEDIAMETRICS_PROP_PREFIX_SERVER AMEDIAMETRICS_PROP_EVENT_VALUE_CTOR)
+            .record();
+    }
+
+    // Called when we are removed from the Thread.
+    void logEndInterval() {
+        std::lock_guard l(mLock);
+        if (mIntervalStartTimeNs != 0) {
+            const int64_t elapsedTimeNs = systemTime() - mIntervalStartTimeNs;
+            mIntervalStartTimeNs = 0;
+            mCumulativeTimeNs += elapsedTimeNs;
+            mDeviceTimeNs += elapsedTimeNs;
+        }
+    }
+
+    void logInvalidate() const {
+        // no lock required, all local or const variables.
+        mediametrics::LogItem(mMetricsId)
+            .set(AMEDIAMETRICS_PROP_EVENT,
+                 AMEDIAMETRICS_PROP_EVENT_VALUE_INVALIDATE)
+            .record();
+    }
+
+    void logLatencyAndStartup(double latencyMs, double startupMs) {
+        mediametrics::LogItem(mMetricsId)
+            .set(AMEDIAMETRICS_PROP_LATENCYMS, latencyMs)
+            .set(AMEDIAMETRICS_PROP_STARTUPMS, startupMs)
+            .record();
+        std::lock_guard l(mLock);
+        mDeviceLatencyMs.add(latencyMs);
+        mDeviceStartupMs.add(startupMs);
+    }
+
+    // may be called multiple times during an interval
+    void logVolume(float volume) {
+        const int64_t timeNs = systemTime();
+        std::lock_guard l(mLock);
+        if (mStartVolumeTimeNs == 0) {
+            mDeviceVolume = mVolume = volume;
+            mLastVolumeChangeTimeNs = mStartVolumeTimeNs = timeNs;
+            return;
+        }
+        mDeviceVolume = (mDeviceVolume * (mLastVolumeChangeTimeNs - mStartVolumeTimeNs) +
+            mVolume * (timeNs - mLastVolumeChangeTimeNs)) / (timeNs - mStartVolumeTimeNs);
+        mVolume = volume;
+        mLastVolumeChangeTimeNs = timeNs;
+    }
+
+    // Use absolute numbers returned by AudioTrackShared.
+    void logUnderruns(size_t count, size_t frames) {
+        std::lock_guard l(mLock);
+        mUnderrunCount = count;
+        mUnderrunFrames = frames;
+        // Consider delivering a message here (also be aware of excessive spam).
+    }
+
+private:
+    // no lock required - all arguments and constants.
+    void deliverDeviceMetrics(const char *eventName, const char *devices) const {
+        mediametrics::LogItem(mMetricsId)
+            .set(AMEDIAMETRICS_PROP_EVENT, eventName)
+            .set(mIsOut ? AMEDIAMETRICS_PROP_OUTPUTDEVICES
+                   : AMEDIAMETRICS_PROP_INPUTDEVICES, devices)
+           .record();
+    }
+
+    void deliverCumulativeMetrics(const char *eventName) const REQUIRES(mLock) {
+        if (mIntervalCount > 0) {
+            mediametrics::LogItem item(mMetricsId);
+            item.set(AMEDIAMETRICS_PROP_CUMULATIVETIMENS, mCumulativeTimeNs)
+                .set(AMEDIAMETRICS_PROP_DEVICETIMENS, mDeviceTimeNs)
+                .set(AMEDIAMETRICS_PROP_EVENT, eventName)
+                .set(AMEDIAMETRICS_PROP_INTERVALCOUNT, (int32_t)mIntervalCount);
+            if (mIsOut) {
+                item.set(AMEDIAMETRICS_PROP_DEVICEVOLUME, mDeviceVolume);
+            }
+            if (mDeviceLatencyMs.getN() > 0) {
+                item.set(AMEDIAMETRICS_PROP_DEVICELATENCYMS, mDeviceLatencyMs.getMean())
+                    .set(AMEDIAMETRICS_PROP_DEVICESTARTUPMS, mDeviceStartupMs.getMean());
+            }
+            if (mUnderrunCount > 0) {
+                item.set(AMEDIAMETRICS_PROP_UNDERRUN,
+                        (int32_t)(mUnderrunCount - mUnderrunCountSinceIntervalGroup))
+                    .set(AMEDIAMETRICS_PROP_UNDERRUNFRAMES,
+                        (int64_t)(mUnderrunFrames - mUnderrunFramesSinceIntervalGroup));
+            }
+            item.record();
+        }
+    }
+
+    void resetIntervalGroupMetrics() REQUIRES(mLock) {
+        // mDevices is not reset by resetIntervalGroupMetrics.
+
+        mIntervalCount = 0;
+        mIntervalStartTimeNs = 0;
+        // mCumulativeTimeNs is not reset by resetIntervalGroupMetrics.
+        mDeviceTimeNs = 0;
+
+        mVolume = 0.f;
+        mDeviceVolume = 0.f;
+        mStartVolumeTimeNs = 0;
+        mLastVolumeChangeTimeNs = 0;
+
+        mDeviceLatencyMs.reset();
+        mDeviceStartupMs.reset();
+
+        mUnderrunCountSinceIntervalGroup = mUnderrunCount;
+        mUnderrunFramesSinceIntervalGroup = mUnderrunFrames;
+        // do not reset mUnderrunCount - it keeps continuously running for tracks.
+    }
+
+    const std::string mMetricsId;
+    const bool        mIsOut;  // if true, than a playback track, otherwise used for record.
+
+    mutable           std::mutex mLock;
+
+    // Devices in the interval group.
+    std::string       mDevices GUARDED_BY(mLock);
+
+    // Number of intervals and playing time
+    int32_t           mIntervalCount GUARDED_BY(mLock) = 0;
+    int64_t           mIntervalStartTimeNs GUARDED_BY(mLock) = 0;
+    int64_t           mCumulativeTimeNs GUARDED_BY(mLock) = 0;
+    int64_t           mDeviceTimeNs GUARDED_BY(mLock) = 0;
+
+    // Average volume
+    double            mVolume GUARDED_BY(mLock) = 0.f;
+    double            mDeviceVolume GUARDED_BY(mLock) = 0.f;
+    int64_t           mStartVolumeTimeNs GUARDED_BY(mLock) = 0;
+    int64_t           mLastVolumeChangeTimeNs GUARDED_BY(mLock) = 0;
+
+    // latency and startup for each interval.
+    audio_utils::Statistics<double> mDeviceLatencyMs GUARDED_BY(mLock);
+    audio_utils::Statistics<double> mDeviceStartupMs GUARDED_BY(mLock);
+
+    // underrun count and frames
+    int64_t           mUnderrunCount GUARDED_BY(mLock) = 0;
+    int64_t           mUnderrunFrames GUARDED_BY(mLock) = 0;
+    int64_t           mUnderrunCountSinceIntervalGroup GUARDED_BY(mLock) = 0;
+    int64_t           mUnderrunFramesSinceIntervalGroup GUARDED_BY(mLock) = 0;
+};
+
+} // namespace android
+
+#endif // ANDROID_AUDIO_TRACKMETRICS_H
diff --git a/services/audioflinger/Tracks.cpp b/services/audioflinger/Tracks.cpp
index 4898d37..58c61c9 100644
--- a/services/audioflinger/Tracks.cpp
+++ b/services/audioflinger/Tracks.cpp
@@ -106,7 +106,7 @@
         mThreadIoHandle(thread ? thread->id() : AUDIO_IO_HANDLE_NONE),
         mPortId(portId),
         mIsInvalid(false),
-        mMetricsId(std::move(metricsId)),
+        mTrackMetrics(std::move(metricsId), isOut),
         mCreatorPid(creatorPid)
 {
     const uid_t callingUid = IPCThreadState::self()->getCallingUid();
@@ -602,13 +602,7 @@
     }
 
     // Once this item is logged by the server, the client can add properties.
-    mediametrics::LogItem(mMetricsId)
-        .setPid(creatorPid)
-        .setUid(uid)
-        .set(AMEDIAMETRICS_PROP_ALLOWUID, (int32_t)uid)
-        .set(AMEDIAMETRICS_PROP_EVENT,
-                AMEDIAMETRICS_PROP_PREFIX_SERVER AMEDIAMETRICS_PROP_EVENT_VALUE_CTOR)
-        .record();
+    mTrackMetrics.logConstructor(creatorPid, uid);
 }
 
 AudioFlinger::PlaybackThread::Track::~Track()
@@ -1249,6 +1243,7 @@
     if (mFinalVolume != volume) { // Compare to an epsilon if too many meaningless updates
         mFinalVolume = volume;
         setMetadataHasChanged();
+        mTrackMetrics.logVolume(volume);
     }
 }
 
@@ -1534,10 +1529,7 @@
                     (long long)mLogStartTimeNs,
                     (long long)local.mPosition[ExtendedTimestamp::LOCATION_SERVER],
                     (long long)mLogStartFrames);
-            mediametrics::LogItem(mMetricsId)
-                .set(AMEDIAMETRICS_PROP_LATENCYMS, latencyMs)
-                .set(AMEDIAMETRICS_PROP_STARTUPMS, startUpMs)
-                .record();
+            mTrackMetrics.logLatencyAndStartup(latencyMs, startUpMs);
         }
     }
 }
@@ -2163,12 +2155,7 @@
 #endif
 
     // Once this item is logged by the server, the client can add properties.
-    mediametrics::LogItem(mMetricsId)
-        .setPid(creatorPid)
-        .setUid(uid)
-        .set(AMEDIAMETRICS_PROP_ALLOWUID, (int32_t)uid)
-        .set(AMEDIAMETRICS_PROP_EVENT, "server." AMEDIAMETRICS_PROP_EVENT_VALUE_CTOR)
-        .record();
+    mTrackMetrics.logConstructor(creatorPid, uid);
 }
 
 AudioFlinger::RecordThread::RecordTrack::~RecordTrack()
@@ -2725,9 +2712,12 @@
                   nullptr /* buffer */, (size_t)0 /* bufferSize */,
                   sessionId, creatorPid, uid, isOut,
                   ALLOC_NONE,
-                  TYPE_DEFAULT, portId),
+                  TYPE_DEFAULT, portId,
+                  std::string(AMEDIAMETRICS_KEY_PREFIX_AUDIO_MMAP) + std::to_string(portId)),
         mPid(pid), mSilenced(false), mSilencedNotified(false)
 {
+    // Once this item is logged by the server, the client can add properties.
+    mTrackMetrics.logConstructor(creatorPid, uid);
 }
 
 AudioFlinger::MmapThread::MmapTrack::~MmapTrack()
diff --git a/services/audiopolicy/managerdefault/AudioPolicyManager.cpp b/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
index 13e2093..bcf6f38 100644
--- a/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
+++ b/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
@@ -954,7 +954,8 @@
                                                   primaryMix->mDeviceAddress,
                                                   AUDIO_FORMAT_DEFAULT);
         sp<SwAudioOutputDescriptor> policyDesc = primaryMix->getOutput();
-        if (policyDesc == nullptr || (policyDesc->mFlags & AUDIO_OUTPUT_FLAG_DIRECT)) {
+        if (deviceDesc != nullptr
+                && (policyDesc == nullptr || (policyDesc->mFlags & AUDIO_OUTPUT_FLAG_DIRECT))) {
             audio_io_handle_t newOutput;
             status = openDirectOutput(
                     *stream, session, config,
diff --git a/services/audiopolicy/service/AudioPolicyService.cpp b/services/audiopolicy/service/AudioPolicyService.cpp
index d743be9..a15970a 100644
--- a/services/audiopolicy/service/AudioPolicyService.cpp
+++ b/services/audiopolicy/service/AudioPolicyService.cpp
@@ -676,6 +676,7 @@
         case AUDIO_SOURCE_VOICE_CALL:
         case AUDIO_SOURCE_REMOTE_SUBMIX:
         case AUDIO_SOURCE_FM_TUNER:
+        case AUDIO_SOURCE_ECHO_REFERENCE:
             return true;
         default:
             break;
diff --git a/services/camera/libcameraservice/device3/Camera3Device.cpp b/services/camera/libcameraservice/device3/Camera3Device.cpp
index 2d46122..b00a2d9 100644
--- a/services/camera/libcameraservice/device3/Camera3Device.cpp
+++ b/services/camera/libcameraservice/device3/Camera3Device.cpp
@@ -2344,6 +2344,21 @@
     }
 }
 
+bool Camera3Device::checkAbandonedStreamsLocked() {
+    if ((mInputStream.get() != nullptr) && (mInputStream->isAbandoned())) {
+        return true;
+    }
+
+    for (size_t i = 0; i < mOutputStreams.size(); i++) {
+        auto stream = mOutputStreams[i];
+        if ((stream.get() != nullptr) && (stream->isAbandoned())) {
+            return true;
+        }
+    }
+
+    return false;
+}
+
 bool Camera3Device::reconfigureCamera(const CameraMetadata& sessionParams) {
     ATRACE_CALL();
     bool ret = false;
@@ -2352,6 +2367,12 @@
     nsecs_t maxExpectedDuration = getExpectedInFlightDuration();
 
     Mutex::Autolock l(mLock);
+    if (checkAbandonedStreamsLocked()) {
+        ALOGW("%s: Abandoned stream detected, session parameters can't be applied correctly!",
+                __FUNCTION__);
+        return true;
+    }
+
     auto rc = internalPauseAndWaitLocked(maxExpectedDuration);
     if (rc == NO_ERROR) {
         mNeedConfig = true;
diff --git a/services/camera/libcameraservice/device3/Camera3Device.h b/services/camera/libcameraservice/device3/Camera3Device.h
index b373a64..19ecf4b 100644
--- a/services/camera/libcameraservice/device3/Camera3Device.h
+++ b/services/camera/libcameraservice/device3/Camera3Device.h
@@ -648,6 +648,12 @@
     bool reconfigureCamera(const CameraMetadata& sessionParams);
 
     /**
+     * Return true in case of any output or input abandoned streams,
+     * otherwise return false.
+     */
+    bool checkAbandonedStreamsLocked();
+
+    /**
      * Filter stream session parameters and configure camera HAL.
      */
     status_t filterParamsAndConfigureLocked(const CameraMetadata& sessionParams,
diff --git a/services/camera/libcameraservice/device3/Camera3OutputUtils.cpp b/services/camera/libcameraservice/device3/Camera3OutputUtils.cpp
index 4c8366f..603f516 100644
--- a/services/camera/libcameraservice/device3/Camera3OutputUtils.cpp
+++ b/services/camera/libcameraservice/device3/Camera3OutputUtils.cpp
@@ -259,13 +259,15 @@
     }
 
     // Fix up some result metadata to account for HAL-level distortion correction
-    status_t res =
-            states.distortionMappers[states.cameraId.c_str()].correctCaptureResult(
-                    &captureResult.mMetadata);
-    if (res != OK) {
-        SET_ERR("Unable to correct capture result metadata for frame %d: %s (%d)",
-                frameNumber, strerror(-res), res);
-        return;
+    status_t res = OK;
+    auto iter = states.distortionMappers.find(states.cameraId.c_str());
+    if (iter != states.distortionMappers.end()) {
+        res = iter->second.correctCaptureResult(&captureResult.mMetadata);
+        if (res != OK) {
+            SET_ERR("Unable to correct capture result metadata for frame %d: %s (%d)",
+                    frameNumber, strerror(-res), res);
+            return;
+        }
     }
 
     // Fix up result metadata to account for zoom ratio availabilities between
diff --git a/services/mediaresourcemanager/ResourceManagerService.cpp b/services/mediaresourcemanager/ResourceManagerService.cpp
index be5af00..ff45c87 100644
--- a/services/mediaresourcemanager/ResourceManagerService.cpp
+++ b/services/mediaresourcemanager/ResourceManagerService.cpp
@@ -114,6 +114,7 @@
         info.uid = uid;
         info.clientId = clientId;
         info.client = client;
+        info.pendingRemoval = false;
 
         index = infos.add(clientId, info);
     }
@@ -648,6 +649,36 @@
     return Status::ok();
 }
 
+Status ResourceManagerService::markClientForPendingRemoval(int32_t pid, int64_t clientId) {
+    String8 log = String8::format(
+            "markClientForPendingRemoval(pid %d, clientId %lld)",
+            pid, (long long) clientId);
+    mServiceLog->add(log);
+
+    Mutex::Autolock lock(mLock);
+    if (!mProcessInfo->isValidPid(pid)) {
+        ALOGE("Rejected markClientForPendingRemoval call with invalid pid.");
+        return Status::fromServiceSpecificError(BAD_VALUE);
+    }
+    ssize_t index = mMap.indexOfKey(pid);
+    if (index < 0) {
+        ALOGV("markClientForPendingRemoval: didn't find pid %d for clientId %lld",
+              pid, (long long)clientId);
+        return Status::ok();
+    }
+    ResourceInfos &infos = mMap.editValueAt(index);
+
+    index = infos.indexOfKey(clientId);
+    if (index < 0) {
+        ALOGV("markClientForPendingRemoval: didn't find clientId %lld", (long long) clientId);
+        return Status::ok();
+    }
+
+    ResourceInfo &info = infos.editValueAt(index);
+    info.pendingRemoval = true;
+    return Status::ok();
+}
+
 bool ResourceManagerService::getPriority_l(int pid, int* priority) {
     int newPid = pid;
 
@@ -693,6 +724,12 @@
     int lowestPriorityPid;
     int lowestPriority;
     int callingPriority;
+
+    // Before looking into other processes, check if we have clients marked for
+    // pending removal in the same process.
+    if (getBiggestClient_l(callingPid, type, client, true /* pendingRemovalOnly */)) {
+        return true;
+    }
     if (!getPriority_l(callingPid, &callingPriority)) {
         ALOGE("getLowestPriorityBiggestClient_l: can't get process priority for pid %d",
                 callingPid);
@@ -761,7 +798,8 @@
 }
 
 bool ResourceManagerService::getBiggestClient_l(
-        int pid, MediaResource::Type type, std::shared_ptr<IResourceManagerClient> *client) {
+        int pid, MediaResource::Type type, std::shared_ptr<IResourceManagerClient> *client,
+        bool pendingRemovalOnly) {
     ssize_t index = mMap.indexOfKey(pid);
     if (index < 0) {
         ALOGE("getBiggestClient_l: can't find resource info for pid %d", pid);
@@ -773,6 +811,9 @@
     const ResourceInfos &infos = mMap.valueAt(index);
     for (size_t i = 0; i < infos.size(); ++i) {
         const ResourceList &resources = infos[i].resources;
+        if (pendingRemovalOnly && !infos[i].pendingRemoval) {
+            continue;
+        }
         for (auto it = resources.begin(); it != resources.end(); it++) {
             const MediaResourceParcel &resource = it->second;
             if (resource.type == type) {
diff --git a/services/mediaresourcemanager/ResourceManagerService.h b/services/mediaresourcemanager/ResourceManagerService.h
index f500c62..ee982b7 100644
--- a/services/mediaresourcemanager/ResourceManagerService.h
+++ b/services/mediaresourcemanager/ResourceManagerService.h
@@ -18,6 +18,8 @@
 #ifndef ANDROID_MEDIA_RESOURCEMANAGERSERVICE_H
 #define ANDROID_MEDIA_RESOURCEMANAGERSERVICE_H
 
+#include <map>
+
 #include <aidl/android/media/BnResourceManagerService.h>
 #include <arpa/inet.h>
 #include <media/MediaResource.h>
@@ -50,6 +52,7 @@
     std::shared_ptr<IResourceManagerClient> client;
     sp<DeathNotifier> deathNotifier;
     ResourceList resources;
+    bool pendingRemoval{false};
 };
 
 // TODO: convert these to std::map
@@ -122,6 +125,8 @@
             int originalPid,
             int newPid) override;
 
+    Status markClientForPendingRemoval(int32_t pid, int64_t clientId) override;
+
     Status removeResource(int pid, int64_t clientId, bool checkValid);
 
 private:
@@ -146,7 +151,8 @@
     // Gets the client who owns biggest piece of specified resource type from pid.
     // Returns false if failed. The client will remain unchanged if failed.
     bool getBiggestClient_l(int pid, MediaResource::Type type,
-            std::shared_ptr<IResourceManagerClient> *client);
+            std::shared_ptr<IResourceManagerClient> *client,
+            bool pendingRemovalOnly = false);
 
     bool isCallingPriorityHigher_l(int callingPid, int pid);
 
diff --git a/services/mediaresourcemanager/test/ResourceManagerService_test.cpp b/services/mediaresourcemanager/test/ResourceManagerService_test.cpp
index 5d839fa..702935d 100644
--- a/services/mediaresourcemanager/test/ResourceManagerService_test.cpp
+++ b/services/mediaresourcemanager/test/ResourceManagerService_test.cpp
@@ -472,6 +472,56 @@
         }
     }
 
+    void testMarkClientForPendingRemoval() {
+        bool result;
+
+        {
+            addResource();
+            mService->mSupportsSecureWithNonSecureCodec = true;
+
+            std::vector<MediaResourceParcel> resources;
+            resources.push_back(MediaResource(MediaResource::Type::kNonSecureCodec, 1));
+
+            // Remove low priority clients
+            mService->removeClient(kTestPid1, getId(mTestClient1));
+
+            // no lower priority client
+            CHECK_STATUS_FALSE(mService->reclaimResource(kTestPid2, resources, &result));
+            verifyClients(false /* c1 */, false /* c2 */, false /* c3 */);
+
+            mService->markClientForPendingRemoval(kTestPid2, getId(mTestClient2));
+
+            // client marked for pending removal from the same process got reclaimed
+            CHECK_STATUS_TRUE(mService->reclaimResource(kTestPid2, resources, &result));
+            verifyClients(false /* c1 */, true /* c2 */, false /* c3 */);
+
+            // clean up client 3 which still left
+            mService->removeClient(kTestPid2, getId(mTestClient3));
+        }
+
+        {
+            addResource();
+            mService->mSupportsSecureWithNonSecureCodec = true;
+
+            std::vector<MediaResourceParcel> resources;
+            resources.push_back(MediaResource(MediaResource::Type::kNonSecureCodec, 1));
+
+            mService->markClientForPendingRemoval(kTestPid2, getId(mTestClient2));
+
+            // client marked for pending removal from the same process got reclaimed
+            // first, even though there are lower priority process
+            CHECK_STATUS_TRUE(mService->reclaimResource(kTestPid2, resources, &result));
+            verifyClients(false /* c1 */, true /* c2 */, false /* c3 */);
+
+            // lower priority client got reclaimed
+            CHECK_STATUS_TRUE(mService->reclaimResource(kTestPid2, resources, &result));
+            verifyClients(true /* c1 */, false /* c2 */, false /* c3 */);
+
+            // clean up client 3 which still left
+            mService->removeClient(kTestPid2, getId(mTestClient3));
+        }
+    }
+
     void testRemoveClient() {
         addResource();
 
@@ -900,4 +950,8 @@
     testOverridePid();
 }
 
+TEST_F(ResourceManagerServiceTest, markClientForPendingRemoval) {
+    testMarkClientForPendingRemoval();
+}
+
 } // namespace android