Merge "MediaMuxer: add wrapper for MediaMuxer constructor"
diff --git a/camera/ndk/ndk_vendor/impl/ACameraManager.cpp b/camera/ndk/ndk_vendor/impl/ACameraManager.cpp
index 77c934a..bb4ef56 100644
--- a/camera/ndk/ndk_vendor/impl/ACameraManager.cpp
+++ b/camera/ndk/ndk_vendor/impl/ACameraManager.cpp
@@ -165,7 +165,10 @@
     Mutex::Autolock _l(mLock);
     if (mCameraService != nullptr) {
         mCameraService->unlinkToDeath(mDeathNotifier);
-        mCameraService->removeListener(mCameraServiceListener);
+        auto stat = mCameraService->removeListener(mCameraServiceListener);
+        if (!stat.isOk()) {
+            ALOGE("Failed to remove listener to camera service %s", stat.description().c_str());
+        }
     }
     mDeathNotifier.clear();
     if (mCbLooper != nullptr) {
@@ -475,6 +478,10 @@
                 ALOGE("%s: Cannot find camera callback fp!", __FUNCTION__);
                 return;
             }
+            if (cb == nullptr) {
+                // Physical camera callback is null
+                return;
+            }
             found = msg->findPointer(kContextKey, &context);
             if (!found) {
                 ALOGE("%s: Cannot find callback context!", __FUNCTION__);
diff --git a/media/codec2/components/gav1/C2SoftGav1Dec.h b/media/codec2/components/gav1/C2SoftGav1Dec.h
index e51c511..f0e14d7 100644
--- a/media/codec2/components/gav1/C2SoftGav1Dec.h
+++ b/media/codec2/components/gav1/C2SoftGav1Dec.h
@@ -23,8 +23,8 @@
 
 #include <SimpleC2Component.h>
 #include <C2Config.h>
-#include "libgav1/src/gav1/decoder.h"
-#include "libgav1/src/gav1/decoder_settings.h"
+#include <gav1/decoder.h>
+#include <gav1/decoder_settings.h>
 
 namespace android {
 
diff --git a/media/codec2/components/vpx/C2SoftVpxEnc.cpp b/media/codec2/components/vpx/C2SoftVpxEnc.cpp
index 2efc00f..2a019d4 100644
--- a/media/codec2/components/vpx/C2SoftVpxEnc.cpp
+++ b/media/codec2/components/vpx/C2SoftVpxEnc.cpp
@@ -59,7 +59,7 @@
 
     addParameter(
         DefineParam(mSize, C2_PARAMKEY_PICTURE_SIZE)
-            .withDefault(new C2StreamPictureSizeInfo::input(0u, 320, 240))
+            .withDefault(new C2StreamPictureSizeInfo::input(0u, 64, 64))
             .withFields({
                 C2F(mSize, width).inRange(2, 2048, 2),
                 C2F(mSize, height).inRange(2, 2048, 2),
@@ -81,7 +81,7 @@
 
     addParameter(
         DefineParam(mFrameRate, C2_PARAMKEY_FRAME_RATE)
-            .withDefault(new C2StreamFrameRateInfo::output(0u, 30.))
+            .withDefault(new C2StreamFrameRateInfo::output(0u, 1.))
             // TODO: More restriction?
             .withFields({C2F(mFrameRate, value).greaterThan(0.)})
             .withSetter(
@@ -127,10 +127,18 @@
                 C2F(mProfileLevel, profile).equalTo(
                     PROFILE_VP9_0
                 ),
-                C2F(mProfileLevel, level).equalTo(
-                    LEVEL_VP9_4_1),
+                C2F(mProfileLevel, level).oneOf({
+                        C2Config::LEVEL_VP9_1,
+                        C2Config::LEVEL_VP9_1_1,
+                        C2Config::LEVEL_VP9_2,
+                        C2Config::LEVEL_VP9_2_1,
+                        C2Config::LEVEL_VP9_3,
+                        C2Config::LEVEL_VP9_3_1,
+                        C2Config::LEVEL_VP9_4,
+                        C2Config::LEVEL_VP9_4_1,
+                }),
             })
-            .withSetter(ProfileLevelSetter)
+            .withSetter(ProfileLevelSetter, mSize, mFrameRate, mBitrate)
             .build());
 #else
     addParameter(
@@ -144,7 +152,7 @@
                 C2F(mProfileLevel, level).equalTo(
                     LEVEL_UNUSED),
             })
-            .withSetter(ProfileLevelSetter)
+            .withSetter(ProfileLevelSetter, mSize, mFrameRate, mBitrate)
             .build());
 #endif
     addParameter(
@@ -217,14 +225,84 @@
 }
 
 C2R C2SoftVpxEnc::IntfImpl::ProfileLevelSetter(bool mayBlock,
-                                               C2P<C2StreamProfileLevelInfo::output>& me) {
+                                               C2P<C2StreamProfileLevelInfo::output>& me,
+                                               const C2P<C2StreamPictureSizeInfo::input>& size,
+                                               const C2P<C2StreamFrameRateInfo::output>& frameRate,
+                                               const C2P<C2StreamBitrateInfo::output>& bitrate) {
     (void)mayBlock;
+#ifdef VP9
     if (!me.F(me.v.profile).supportsAtAll(me.v.profile)) {
         me.set().profile = PROFILE_VP9_0;
     }
-    if (!me.F(me.v.level).supportsAtAll(me.v.level)) {
+    struct LevelLimits {
+        C2Config::level_t level;
+        float samplesPerSec;
+        uint64_t samples;
+        uint32_t bitrate;
+        size_t dimension;
+    };
+    constexpr LevelLimits kLimits[] = {
+            {LEVEL_VP9_1, 829440, 36864, 200000, 512},
+            {LEVEL_VP9_1_1, 2764800, 73728, 800000, 768},
+            {LEVEL_VP9_2, 4608000, 122880, 1800000, 960},
+            {LEVEL_VP9_2_1, 9216000, 245760, 3600000, 1344},
+            {LEVEL_VP9_3, 20736000, 552960, 7200000, 2048},
+            {LEVEL_VP9_3_1, 36864000, 983040, 12000000, 2752},
+            {LEVEL_VP9_4, 83558400, 2228224, 18000000, 4160},
+            {LEVEL_VP9_4_1, 160432128, 2228224, 30000000, 4160},
+    };
+
+    uint64_t samples = size.v.width * size.v.height;
+    float samplesPerSec = float(samples) * frameRate.v.value;
+    size_t dimension = std::max(size.v.width, size.v.height);
+
+    // Check if the supplied level meets the samples / bitrate requirements.
+    // If not, update the level with the lowest level meeting the requirements.
+    bool found = false;
+
+    // By default needsUpdate = false in case the supplied level does meet
+    // the requirements.
+    bool needsUpdate = false;
+    for (const LevelLimits& limit : kLimits) {
+        if (samples > limit.samples) continue;
+        if (samplesPerSec > limit.samplesPerSec) continue;
+        if (bitrate.v.value > limit.bitrate) continue;
+        if (dimension > limit.dimension) continue;
+
+        // This is the lowest level that meets the requirements, and if
+        // we haven't seen the supplied level yet, that means we don't
+        // need the update.
+        if (needsUpdate) {
+            ALOGD("Given level %x does not cover current configuration: "
+                    "adjusting to %x",
+                    me.v.level, limit.level);
+            me.set().level = limit.level;
+        }
+        found = true;
+        break;
+
+        if (me.v.level == limit.level) {
+            // We break out of the loop when the lowest feasible level is
+            // found. The fact that we're here means that our level doesn't
+            // meet the requirement and needs to be updated.
+            needsUpdate = true;
+        }
+    }
+    if (!found) {
+        // We set to the highest supported level.
         me.set().level = LEVEL_VP9_4_1;
     }
+#else
+    (void)size;
+    (void)frameRate;
+    (void)bitrate;
+    if (!me.F(me.v.profile).supportsAtAll(me.v.profile)) {
+        me.set().profile = PROFILE_VP8_0;
+    }
+    if (!me.F(me.v.level).supportsAtAll(me.v.level)) {
+        me.set().level = LEVEL_UNUSED;
+    }
+#endif
     return C2R::Ok();
 }
 
diff --git a/media/codec2/components/vpx/C2SoftVpxEnc.h b/media/codec2/components/vpx/C2SoftVpxEnc.h
index 714fadb..bfb4444 100644
--- a/media/codec2/components/vpx/C2SoftVpxEnc.h
+++ b/media/codec2/components/vpx/C2SoftVpxEnc.h
@@ -243,9 +243,10 @@
     static C2R SizeSetter(bool mayBlock, const C2P<C2StreamPictureSizeInfo::input> &oldMe,
                           C2P<C2StreamPictureSizeInfo::input> &me);
 
-    static C2R ProfileLevelSetter(
-            bool mayBlock,
-            C2P<C2StreamProfileLevelInfo::output> &me);
+    static C2R ProfileLevelSetter(bool mayBlock, C2P<C2StreamProfileLevelInfo::output>& me,
+                                  const C2P<C2StreamPictureSizeInfo::input>& size,
+                                  const C2P<C2StreamFrameRateInfo::output>& frameRate,
+                                  const C2P<C2StreamBitrateInfo::output>& bitrate);
 
     static C2R LayeringSetter(bool mayBlock, C2P<C2StreamTemporalLayeringTuning::output>& me);
 
diff --git a/media/codec2/sfplugin/CCodec.cpp b/media/codec2/sfplugin/CCodec.cpp
index 296d7ed..a11d789 100644
--- a/media/codec2/sfplugin/CCodec.cpp
+++ b/media/codec2/sfplugin/CCodec.cpp
@@ -1075,8 +1075,7 @@
             } else {
                 if ((config->mDomain & Config::IS_ENCODER) || !surface) {
                     if (vendorSdkVersion < __ANDROID_API_S__ &&
-                            (format == COLOR_FormatYUV420Flexible ||
-                             format == COLOR_FormatYUV420Planar ||
+                            (format == COLOR_FormatYUV420Planar ||
                              format == COLOR_FormatYUV420PackedPlanar ||
                              format == COLOR_FormatYUV420SemiPlanar ||
                              format == COLOR_FormatYUV420PackedSemiPlanar)) {
diff --git a/media/codec2/sfplugin/CCodecBuffers.h b/media/codec2/sfplugin/CCodecBuffers.h
index c8e9930..6335f13 100644
--- a/media/codec2/sfplugin/CCodecBuffers.h
+++ b/media/codec2/sfplugin/CCodecBuffers.h
@@ -72,7 +72,7 @@
     virtual void getArray(Vector<sp<MediaCodecBuffer>> *) const {}
 
     /**
-     * Return number of buffers the client owns.
+     * Return number of buffers owned by the client or the component.
      */
     virtual size_t numActiveSlots() const = 0;
 
@@ -595,8 +595,7 @@
     void flush();
 
     /**
-     * Return the number of buffers that are sent to the client but not released
-     * yet.
+     * Return the number of buffers that are sent to the client or the component.
      */
     size_t numActiveSlots() const;
 
@@ -716,8 +715,7 @@
     void grow(size_t newSize, std::function<sp<Codec2Buffer>()> alloc);
 
     /**
-     * Return the number of buffers that are sent to the client but not released
-     * yet.
+     * Return the number of buffers that are sent to the client or the component.
      */
     size_t numActiveSlots() const;
 
diff --git a/media/codec2/sfplugin/Codec2Buffer.cpp b/media/codec2/sfplugin/Codec2Buffer.cpp
index 876c96d..b9270de 100644
--- a/media/codec2/sfplugin/Codec2Buffer.cpp
+++ b/media/codec2/sfplugin/Codec2Buffer.cpp
@@ -533,7 +533,7 @@
                         * align(mHeight, 64) / plane.rowSampling;
             }
 
-            if (minPtr == mView.data()[0] && (maxPtr - minPtr + 1) <= planeSize) {
+            if (minPtr == mView.data()[0] && (maxPtr - minPtr) <= planeSize) {
                 // FIXME: this is risky as reading/writing data out of bound results
                 //        in an undefined behavior, but gralloc does assume a
                 //        contiguous mapping
@@ -545,8 +545,7 @@
                     mediaImage->mPlane[i].mHorizSubsampling = plane.colSampling;
                     mediaImage->mPlane[i].mVertSubsampling = plane.rowSampling;
                 }
-                mWrapped = new ABuffer(const_cast<uint8_t *>(minPtr),
-                                       maxPtr - minPtr + 1);
+                mWrapped = new ABuffer(const_cast<uint8_t *>(minPtr), maxPtr - minPtr);
                 ALOGV("Converter: wrapped (capacity=%zu)", mWrapped->capacity());
             }
         }
diff --git a/media/libaaudio/Android.bp b/media/libaaudio/Android.bp
index add28e0..4b417a7 100644
--- a/media/libaaudio/Android.bp
+++ b/media/libaaudio/Android.bp
@@ -36,6 +36,9 @@
     symbol_file: "src/libaaudio.map.txt",
     first_version: "26",
     unversioned_until: "current",
+    export_header_libs: [
+        "libAAudio_headers",
+    ],
 }
 
 cc_library_headers {
diff --git a/media/libaudioclient/AudioPolicy.cpp b/media/libaudioclient/AudioPolicy.cpp
index c2f7229..4d2b6b1 100644
--- a/media/libaudioclient/AudioPolicy.cpp
+++ b/media/libaudioclient/AudioPolicy.cpp
@@ -71,6 +71,10 @@
     return NO_ERROR;
 }
 
+bool AudioMixMatchCriterion::isExcludeCriterion() const {
+    return mRule & RULE_EXCLUSION_MASK;
+}
+
 //
 //  AudioMix implementation
 //
@@ -91,10 +95,11 @@
     if (size > MAX_CRITERIA_PER_MIX) {
         size = MAX_CRITERIA_PER_MIX;
     }
+    mCriteria.reserve(size);
     for (size_t i = 0; i < size; i++) {
         AudioMixMatchCriterion criterion;
         if (criterion.readFromParcel(parcel) == NO_ERROR) {
-            mCriteria.add(criterion);
+            mCriteria.push_back(criterion);
         }
     }
     return NO_ERROR;
@@ -135,18 +140,18 @@
     return NO_ERROR;
 }
 
-void AudioMix::setExcludeUid(uid_t uid) const {
+void AudioMix::setExcludeUid(uid_t uid) {
     AudioMixMatchCriterion crit;
     crit.mRule = RULE_EXCLUDE_UID;
     crit.mValue.mUid = uid;
-    mCriteria.add(crit);
+    mCriteria.push_back(crit);
 }
 
-void AudioMix::setMatchUid(uid_t uid) const {
+void AudioMix::setMatchUid(uid_t uid) {
     AudioMixMatchCriterion crit;
     crit.mRule = RULE_MATCH_UID;
     crit.mValue.mUid = uid;
-    mCriteria.add(crit);
+    mCriteria.push_back(crit);
 }
 
 bool AudioMix::hasUidRule(bool match, uid_t uid) const {
@@ -169,18 +174,18 @@
     return false;
 }
 
-void AudioMix::setExcludeUserId(int userId) const {
+void AudioMix::setExcludeUserId(int userId) {
     AudioMixMatchCriterion crit;
     crit.mRule = RULE_EXCLUDE_USERID;
     crit.mValue.mUserId = userId;
-    mCriteria.add(crit);
+    mCriteria.push_back(crit);
 }
 
-void AudioMix::setMatchUserId(int userId) const {
+void AudioMix::setMatchUserId(int userId) {
     AudioMixMatchCriterion crit;
     crit.mRule = RULE_MATCH_USERID;
     crit.mValue.mUserId = userId;
-    mCriteria.add(crit);
+    mCriteria.push_back(crit);
 }
 
 bool AudioMix::hasUserIdRule(bool match, int userId) const {
diff --git a/media/libaudioclient/include/media/AudioPolicy.h b/media/libaudioclient/include/media/AudioPolicy.h
index 08b3da1..d42d962 100644
--- a/media/libaudioclient/include/media/AudioPolicy.h
+++ b/media/libaudioclient/include/media/AudioPolicy.h
@@ -72,6 +72,7 @@
     status_t readFromParcel(Parcel *parcel);
     status_t writeToParcel(Parcel *parcel) const;
 
+    bool isExcludeCriterion() const;
     union {
         audio_usage_t   mUsage;
         audio_source_t  mSource;
@@ -88,23 +89,24 @@
     static const uint32_t kCbFlagNotifyActivity = 0x1;
 
     AudioMix() {}
-    AudioMix(Vector<AudioMixMatchCriterion> criteria, uint32_t mixType, audio_config_t format,
-             uint32_t routeFlags, String8 registrationId, uint32_t flags) :
+    AudioMix(const std::vector<AudioMixMatchCriterion> &criteria, uint32_t mixType,
+             audio_config_t format, uint32_t routeFlags,const String8 &registrationId,
+             uint32_t flags) :
         mCriteria(criteria), mMixType(mixType), mFormat(format),
         mRouteFlags(routeFlags), mDeviceAddress(registrationId), mCbFlags(flags){}
 
     status_t readFromParcel(Parcel *parcel);
     status_t writeToParcel(Parcel *parcel) const;
 
-    void setExcludeUid(uid_t uid) const;
-    void setMatchUid(uid_t uid) const;
+    void setExcludeUid(uid_t uid);
+    void setMatchUid(uid_t uid);
     /** returns true if this mix has a rule to match or exclude the given uid */
     bool hasUidRule(bool match, uid_t uid) const;
     /** returns true if this mix has a rule for uid match (any uid) */
     bool hasMatchUidRule() const;
 
-    void setExcludeUserId(int userId) const;
-    void setMatchUserId(int userId) const;
+    void setExcludeUserId(int userId);
+    void setMatchUserId(int userId);
     /** returns true if this mix has a rule to match or exclude the given userId */
     bool hasUserIdRule(bool match, int userId) const;
     /** returns true if this mix has a rule for userId match (any userId) */
@@ -112,7 +114,7 @@
     /** returns true if this mix can be used for uid-device affinity routing */
     bool isDeviceAffinityCompatible() const;
 
-    mutable Vector<AudioMixMatchCriterion> mCriteria;
+    std::vector<AudioMixMatchCriterion> mCriteria;
     uint32_t        mMixType;
     audio_config_t  mFormat;
     uint32_t        mRouteFlags;
diff --git a/media/libaudioclient/tests/audioclient_serialization_tests.cpp b/media/libaudioclient/tests/audioclient_serialization_tests.cpp
index 93baefd6..ef8500b 100644
--- a/media/libaudioclient/tests/audioclient_serialization_tests.cpp
+++ b/media/libaudioclient/tests/audioclient_serialization_tests.cpp
@@ -189,12 +189,13 @@
 TEST_F(SerializationTest, AudioMixBinderization) {
     for (int j = 0; j < 512; j++) {
         const std::string msg{"Test AMBinderization for seed::" + std::to_string(mSeed)};
-        Vector<AudioMixMatchCriterion> criteria;
+        std::vector<AudioMixMatchCriterion> criteria;
+        criteria.reserve(16);
         for (int i = 0; i < 16; i++) {
             AudioMixMatchCriterion ammc{kUsages[rand() % kUsages.size()],
                                         kInputSources[rand() % kInputSources.size()],
                                         kMixMatchRules[rand() % kMixMatchRules.size()]};
-            criteria.add(ammc);
+            criteria.push_back(ammc);
         }
         audio_config_t config{};
         config.sample_rate = 48000;
diff --git a/media/libmediametrics/include/MediaMetricsConstants.h b/media/libmediametrics/include/MediaMetricsConstants.h
index bebd382..27f987d 100644
--- a/media/libmediametrics/include/MediaMetricsConstants.h
+++ b/media/libmediametrics/include/MediaMetricsConstants.h
@@ -87,6 +87,7 @@
 #define AMEDIAMETRICS_PROP_PREFIX_EFFECTIVE "effective."
 #define AMEDIAMETRICS_PROP_PREFIX_HAL       "hal."
 #define AMEDIAMETRICS_PROP_PREFIX_HAPTIC    "haptic."
+#define AMEDIAMETRICS_PROP_PREFIX_LAST      "last."
 #define AMEDIAMETRICS_PROP_PREFIX_SERVER    "server."
 
 // Properties within mediametrics are string constants denoted by
diff --git a/media/libstagefright/ACodec.cpp b/media/libstagefright/ACodec.cpp
index 52c4c0f..f15e062 100644
--- a/media/libstagefright/ACodec.cpp
+++ b/media/libstagefright/ACodec.cpp
@@ -785,7 +785,7 @@
 
     // we cannot change the number of output buffers while OMX is running
     // set up surface to the same count
-    Vector<BufferInfo> &buffers = mBuffers[kPortIndexOutput];
+    std::vector<BufferInfo> &buffers = mBuffers[kPortIndexOutput];
     ALOGV("setting up surface for %zu buffers", buffers.size());
 
     err = native_window_set_buffer_count(nativeWindow, buffers.size());
@@ -825,7 +825,7 @@
     // cancel undequeued buffers to new surface
     if (!storingMetadataInDecodedBuffers()) {
         for (size_t i = 0; i < buffers.size(); ++i) {
-            BufferInfo &info = buffers.editItemAt(i);
+            BufferInfo &info = buffers[i];
             if (info.mStatus == BufferInfo::OWNED_BY_NATIVE_WINDOW) {
                 ALOGV("canceling buffer %p", info.mGraphicBuffer->getNativeBuffer());
                 err = nativeWindow->cancelBuffer(
@@ -872,7 +872,7 @@
     CHECK(portIndex == kPortIndexInput || portIndex == kPortIndexOutput);
 
     CHECK(mAllocator[portIndex] == NULL);
-    CHECK(mBuffers[portIndex].isEmpty());
+    CHECK(mBuffers[portIndex].empty());
 
     status_t err;
     if (mNativeWindow != NULL && portIndex == kPortIndexOutput) {
@@ -951,6 +951,7 @@
 
             const sp<AMessage> &format =
                     portIndex == kPortIndexInput ? mInputFormat : mOutputFormat;
+            mBuffers[portIndex].reserve(def.nBufferCountActual);
             for (OMX_U32 i = 0; i < def.nBufferCountActual && err == OK; ++i) {
                 hidl_memory hidlMemToken;
                 sp<TMemory> hidlMem;
@@ -1039,7 +1040,7 @@
                     }
                 }
 
-                mBuffers[portIndex].push(info);
+                mBuffers[portIndex].push_back(info);
             }
         }
     }
@@ -1250,6 +1251,7 @@
          mComponentName.c_str(), bufferCount, bufferSize);
 
     // Dequeue buffers and send them to OMX
+    mBuffers[kPortIndexOutput].reserve(bufferCount);
     for (OMX_U32 i = 0; i < bufferCount; i++) {
         ANativeWindowBuffer *buf;
         int fenceFd;
@@ -1275,7 +1277,7 @@
         info.mData = new MediaCodecBuffer(mOutputFormat, new ABuffer(bufferSize));
         info.mCodecData = info.mData;
 
-        mBuffers[kPortIndexOutput].push(info);
+        mBuffers[kPortIndexOutput].push_back(info);
 
         IOMX::buffer_id bufferId;
         err = mOMXNode->useBuffer(kPortIndexOutput, graphicBuffer, &bufferId);
@@ -1285,7 +1287,7 @@
             break;
         }
 
-        mBuffers[kPortIndexOutput].editItemAt(i).mBufferID = bufferId;
+        mBuffers[kPortIndexOutput][i].mBufferID = bufferId;
 
         ALOGV("[%s] Registered graphic buffer with ID %u (pointer = %p)",
              mComponentName.c_str(),
@@ -1307,7 +1309,7 @@
     }
 
     for (OMX_U32 i = cancelStart; i < cancelEnd; i++) {
-        BufferInfo *info = &mBuffers[kPortIndexOutput].editItemAt(i);
+        BufferInfo *info = &mBuffers[kPortIndexOutput][i];
         if (info->mStatus == BufferInfo::OWNED_BY_US) {
             status_t error = cancelBufferToNativeWindow(info);
             if (err == 0) {
@@ -1336,6 +1338,7 @@
     ALOGV("[%s] Allocating %u meta buffers on output port",
          mComponentName.c_str(), bufferCount);
 
+    mBuffers[kPortIndexOutput].reserve(bufferCount);
     for (OMX_U32 i = 0; i < bufferCount; i++) {
         BufferInfo info;
         info.mStatus = BufferInfo::OWNED_BY_NATIVE_WINDOW;
@@ -1353,7 +1356,7 @@
         info.mCodecData = info.mData;
 
         err = mOMXNode->useBuffer(kPortIndexOutput, OMXBuffer::sPreset, &info.mBufferID);
-        mBuffers[kPortIndexOutput].push(info);
+        mBuffers[kPortIndexOutput].push_back(info);
 
         ALOGV("[%s] allocated meta buffer with ID %u",
                 mComponentName.c_str(), info.mBufferID);
@@ -1462,7 +1465,7 @@
             it != done.cend(); ++it) {
         ssize_t index = it->getIndex();
         if (index >= 0 && (size_t)index < mBuffers[kPortIndexOutput].size()) {
-            mBuffers[kPortIndexOutput].editItemAt(index).mRenderInfo = NULL;
+            mBuffers[kPortIndexOutput][index].mRenderInfo = NULL;
         } else if (index >= 0) {
             // THIS SHOULD NEVER HAPPEN
             ALOGE("invalid index %zd in %zu", index, mBuffers[kPortIndexOutput].size());
@@ -1502,7 +1505,7 @@
         bool stale = false;
         for (size_t i = mBuffers[kPortIndexOutput].size(); i > 0;) {
             i--;
-            BufferInfo *info = &mBuffers[kPortIndexOutput].editItemAt(i);
+            BufferInfo *info = &mBuffers[kPortIndexOutput][i];
 
             if (info->mGraphicBuffer != NULL &&
                     info->mGraphicBuffer->handle == buf->handle) {
@@ -1550,8 +1553,7 @@
     BufferInfo *oldest = NULL;
     for (size_t i = mBuffers[kPortIndexOutput].size(); i > 0;) {
         i--;
-        BufferInfo *info =
-            &mBuffers[kPortIndexOutput].editItemAt(i);
+        BufferInfo *info = &mBuffers[kPortIndexOutput][i];
         if (info->mStatus == BufferInfo::OWNED_BY_NATIVE_WINDOW &&
             (oldest == NULL ||
              // avoid potential issues from counter rolling over
@@ -1608,8 +1610,7 @@
     status_t err = OK;
     for (size_t i = mBuffers[kPortIndexOutput].size(); i > 0;) {
         i--;
-        BufferInfo *info =
-            &mBuffers[kPortIndexOutput].editItemAt(i);
+        BufferInfo *info = &mBuffers[kPortIndexOutput][i];
 
         // At this time some buffers may still be with the component
         // or being drained.
@@ -1626,7 +1627,7 @@
 }
 
 status_t ACodec::freeBuffer(OMX_U32 portIndex, size_t i) {
-    BufferInfo *info = &mBuffers[portIndex].editItemAt(i);
+    BufferInfo *info = &mBuffers[portIndex][i];
     status_t err = OK;
 
     // there should not be any fences in the metadata
@@ -1666,14 +1667,14 @@
     }
 
     // remove buffer even if mOMXNode->freeBuffer fails
-    mBuffers[portIndex].removeAt(i);
+    mBuffers[portIndex].erase(mBuffers[portIndex].begin() + i);
     return err;
 }
 
 ACodec::BufferInfo *ACodec::findBufferByID(
         uint32_t portIndex, IOMX::buffer_id bufferID, ssize_t *index) {
     for (size_t i = 0; i < mBuffers[portIndex].size(); ++i) {
-        BufferInfo *info = &mBuffers[portIndex].editItemAt(i);
+        BufferInfo *info = &mBuffers[portIndex][i];
 
         if (info->mBufferID == bufferID) {
             if (index != NULL) {
@@ -5102,7 +5103,7 @@
     size_t n = 0;
 
     for (size_t i = 0; i < mBuffers[portIndex].size(); ++i) {
-        const BufferInfo &info = mBuffers[portIndex].itemAt(i);
+        const BufferInfo &info = mBuffers[portIndex][i];
 
         if (info.mStatus == BufferInfo::OWNED_BY_COMPONENT) {
             ++n;
@@ -5116,7 +5117,7 @@
     size_t n = 0;
 
     for (size_t i = 0; i < mBuffers[kPortIndexOutput].size(); ++i) {
-        const BufferInfo &info = mBuffers[kPortIndexOutput].itemAt(i);
+        const BufferInfo &info = mBuffers[kPortIndexOutput][i];
 
         if (info.mStatus == BufferInfo::OWNED_BY_NATIVE_WINDOW) {
             ++n;
@@ -5143,7 +5144,7 @@
 bool ACodec::allYourBuffersAreBelongToUs(
         OMX_U32 portIndex) {
     for (size_t i = 0; i < mBuffers[portIndex].size(); ++i) {
-        BufferInfo *info = &mBuffers[portIndex].editItemAt(i);
+        BufferInfo *info = &mBuffers[portIndex][i];
 
         if (info->mStatus != BufferInfo::OWNED_BY_US
                 && info->mStatus != BufferInfo::OWNED_BY_NATIVE_WINDOW) {
@@ -5167,12 +5168,11 @@
 }
 
 void ACodec::processDeferredMessages() {
-    List<sp<AMessage> > queue = mDeferredQueue;
+    std::list<sp<AMessage>> queue = mDeferredQueue;
     mDeferredQueue.clear();
 
-    List<sp<AMessage> >::iterator it = queue.begin();
-    while (it != queue.end()) {
-        onMessageReceived(*it++);
+    for(const sp<AMessage> &msg : queue) {
+        onMessageReceived(msg);
     }
 }
 
@@ -6483,7 +6483,7 @@
     BufferInfo *eligible = NULL;
 
     for (size_t i = 0; i < mCodec->mBuffers[kPortIndexInput].size(); ++i) {
-        BufferInfo *info = &mCodec->mBuffers[kPortIndexInput].editItemAt(i);
+        BufferInfo *info = &mCodec->mBuffers[kPortIndexInput][i];
 
 #if 0
         if (info->mStatus == BufferInfo::OWNED_BY_UPSTREAM) {
@@ -7515,7 +7515,7 @@
     // submit as many buffers as there are input buffers with the codec
     // in case we are in port reconfiguring
     for (size_t i = 0; i < mCodec->mBuffers[kPortIndexInput].size(); ++i) {
-        BufferInfo *info = &mCodec->mBuffers[kPortIndexInput].editItemAt(i);
+        BufferInfo *info = &mCodec->mBuffers[kPortIndexInput][i];
 
         if (info->mStatus == BufferInfo::OWNED_BY_COMPONENT) {
             if (mCodec->submitOutputMetadataBuffer() != OK)
@@ -7533,7 +7533,7 @@
 void ACodec::ExecutingState::submitRegularOutputBuffers() {
     bool failed = false;
     for (size_t i = 0; i < mCodec->mBuffers[kPortIndexOutput].size(); ++i) {
-        BufferInfo *info = &mCodec->mBuffers[kPortIndexOutput].editItemAt(i);
+        BufferInfo *info = &mCodec->mBuffers[kPortIndexOutput][i];
 
         if (mCodec->mNativeWindow != NULL) {
             if (info->mStatus != BufferInfo::OWNED_BY_US
@@ -7590,7 +7590,7 @@
     }
 
     for (size_t i = 0; i < mCodec->mBuffers[kPortIndexInput].size(); i++) {
-        BufferInfo *info = &mCodec->mBuffers[kPortIndexInput].editItemAt(i);
+        BufferInfo *info = &mCodec->mBuffers[kPortIndexInput][i];
         if (info->mStatus == BufferInfo::OWNED_BY_US) {
             postFillThisBuffer(info);
         }
@@ -8594,7 +8594,7 @@
                 ALOGV("[%s] Output port now disabled.", mCodec->mComponentName.c_str());
 
                 status_t err = OK;
-                if (!mCodec->mBuffers[kPortIndexOutput].isEmpty()) {
+                if (!mCodec->mBuffers[kPortIndexOutput].empty()) {
                     ALOGE("disabled port should be empty, but has %zu buffers",
                             mCodec->mBuffers[kPortIndexOutput].size());
                     err = FAILED_TRANSACTION;
diff --git a/media/libstagefright/MediaCodec.cpp b/media/libstagefright/MediaCodec.cpp
index e50880a..bbe31dc 100644
--- a/media/libstagefright/MediaCodec.cpp
+++ b/media/libstagefright/MediaCodec.cpp
@@ -5286,7 +5286,7 @@
 MediaCodec::BufferInfo *MediaCodec::peekNextPortBuffer(int32_t portIndex) {
     CHECK(portIndex == kPortIndexInput || portIndex == kPortIndexOutput);
 
-    List<size_t> *availBuffers = &mAvailPortBuffers[portIndex];
+    std::list<size_t> *availBuffers = &mAvailPortBuffers[portIndex];
 
     if (availBuffers->empty()) {
         return nullptr;
@@ -5303,7 +5303,7 @@
         return -EAGAIN;
     }
 
-    List<size_t> *availBuffers = &mAvailPortBuffers[portIndex];
+    std::list<size_t> *availBuffers = &mAvailPortBuffers[portIndex];
     size_t index = *availBuffers->begin();
     CHECK_EQ(info, &mPortBuffers[portIndex][index]);
     availBuffers->erase(availBuffers->begin());
diff --git a/media/libstagefright/include/media/stagefright/ACodec.h b/media/libstagefright/include/media/stagefright/ACodec.h
index 5a21755..38a4c1e 100644
--- a/media/libstagefright/include/media/stagefright/ACodec.h
+++ b/media/libstagefright/include/media/stagefright/ACodec.h
@@ -18,6 +18,8 @@
 #define A_CODEC_H_
 
 #include <stdint.h>
+#include <list>
+#include <vector>
 #include <android/native_window.h>
 #include <media/hardware/MetadataBufferType.h>
 #include <media/MediaCodecInfo.h>
@@ -265,11 +267,11 @@
     sp<AMessage> mBaseOutputFormat;
 
     FrameRenderTracker mRenderTracker; // render information for buffers rendered by ACodec
-    Vector<BufferInfo> mBuffers[2];
+    std::vector<BufferInfo> mBuffers[2];
     bool mPortEOS[2];
     status_t mInputEOSResult;
 
-    List<sp<AMessage> > mDeferredQueue;
+    std::list<sp<AMessage>> mDeferredQueue;
 
     sp<AMessage> mLastOutputFormat;
     bool mIsVideo;
diff --git a/media/libstagefright/include/media/stagefright/MediaCodec.h b/media/libstagefright/include/media/stagefright/MediaCodec.h
index 1d2d711..6f6a4e6 100644
--- a/media/libstagefright/include/media/stagefright/MediaCodec.h
+++ b/media/libstagefright/include/media/stagefright/MediaCodec.h
@@ -18,6 +18,7 @@
 
 #define MEDIA_CODEC_H_
 
+#include <list>
 #include <memory>
 #include <vector>
 
@@ -483,7 +484,7 @@
     // stop/flush/reset/release.
     Mutex mBufferLock;
 
-    List<size_t> mAvailPortBuffers[2];
+    std::list<size_t> mAvailPortBuffers[2];
     std::vector<BufferInfo> mPortBuffers[2];
 
     int32_t mDequeueInputTimeoutGeneration;
@@ -501,7 +502,7 @@
 
     sp<IDescrambler> mDescrambler;
 
-    List<sp<ABuffer> > mCSD;
+    std::list<sp<ABuffer> > mCSD;
 
     sp<AMessage> mActivityNotify;
 
diff --git a/media/libstagefright/rtsp/AAVCAssembler.cpp b/media/libstagefright/rtsp/AAVCAssembler.cpp
index 2f516d5..ddf797c 100644
--- a/media/libstagefright/rtsp/AAVCAssembler.cpp
+++ b/media/libstagefright/rtsp/AAVCAssembler.cpp
@@ -618,13 +618,14 @@
 
 int32_t AAVCAssembler::pickStartSeq(const Queue *queue,
         uint32_t first, int64_t play, int64_t jit) {
+    CHECK(!queue->empty());
     // pick the first sequence number has the start bit.
     sp<ABuffer> buffer = *(queue->begin());
     int32_t firstSeqNo = buffer->int32Data();
 
     // This only works for FU-A type & non-start sequence
-    unsigned nalType = buffer->data()[0] & 0x1f;
-    if (nalType != 28 || buffer->data()[1] & 0x80) {
+    int32_t nalType = buffer->size() >= 1 ? buffer->data()[0] & 0x1f : -1;
+    if (nalType != 28 || (buffer->size() >= 2 && buffer->data()[1] & 0x80)) {
         return firstSeqNo;
     }
 
@@ -634,7 +635,7 @@
         if (rtpTime + jit >= play) {
             break;
         }
-        if ((data[1] & 0x80)) {
+        if (it->size() >= 2 && (data[1] & 0x80)) {
             const int32_t seqNo = it->int32Data();
             ALOGE("finding [HEAD] pkt. \t Seq# (%d ~ )[%d", firstSeqNo, seqNo);
             firstSeqNo = seqNo;
diff --git a/media/mtp/tests/MtpFuzzer/mtp_device_fuzzer.cpp b/media/mtp/tests/MtpFuzzer/mtp_device_fuzzer.cpp
index c4dd564..c32d28a 100644
--- a/media/mtp/tests/MtpFuzzer/mtp_device_fuzzer.cpp
+++ b/media/mtp/tests/MtpFuzzer/mtp_device_fuzzer.cpp
@@ -79,8 +79,6 @@
     usb_device* device = usb_device_new(deviceName.c_str(), fd);
     MtpDevice mtpDevice(device, fdp.ConsumeIntegral<int32_t>(), &descriptor.ep[0],
                         &descriptor.ep[1], &descriptor.ep[2]);
-    MtpObjectInfo objectinfo(fdp.ConsumeIntegral<uint32_t>());
-    MtpStorageInfo storageInfo(fdp.ConsumeIntegral<uint32_t>());
     while (fdp.remaining_bytes()) {
         auto mtpDeviceFunction = fdp.PickValueInArray<const std::function<void()>>(
                 {[&]() { mtpDevice.getStorageIDs(); },
@@ -190,6 +188,7 @@
                  },
                  [&]() { MtpDevice::open(deviceName.c_str(), fd); },
                  [&]() {
+                     MtpObjectInfo objectinfo(fdp.ConsumeIntegral<uint32_t>() /* handle */);
                      MtpDataPacket mtpDataPacket;
                      MtpDevHandle devHandle;
                      std::vector<uint8_t> packet = fdp.ConsumeBytes<uint8_t>(kMaxBytes);
@@ -198,6 +197,7 @@
                      objectinfo.print();
                  },
                  [&]() {
+                     MtpStorageInfo storageInfo(fdp.ConsumeIntegral<uint32_t>() /* id */);
                      MtpDataPacket mtpDataPacket;
                      MtpDevHandle devHandle;
                      std::vector<uint8_t> packet = fdp.ConsumeBytes<uint8_t>(kMaxBytes);
diff --git a/media/ndk/Android.bp b/media/ndk/Android.bp
index ddc71db..fded4f5 100644
--- a/media/ndk/Android.bp
+++ b/media/ndk/Android.bp
@@ -52,6 +52,9 @@
     symbol_file: "libmediandk.map.txt",
     first_version: "21",
     unversioned_until: "current",
+    export_header_libs: [
+        "libmediandk_headers",
+    ],
 }
 
 ndk_headers {
@@ -167,7 +170,7 @@
     stubs: {
         symbol_file: "libmediandk.map.txt",
         versions: ["29"],
-    }
+    },
 }
 
 cc_library {
diff --git a/services/audioflinger/ThreadMetrics.h b/services/audioflinger/ThreadMetrics.h
index 6526655..5493b3c 100644
--- a/services/audioflinger/ThreadMetrics.h
+++ b/services/audioflinger/ThreadMetrics.h
@@ -148,7 +148,14 @@
             item.set(AMEDIAMETRICS_PROP_CUMULATIVETIMENS, mCumulativeTimeNs)
                 .set(AMEDIAMETRICS_PROP_DEVICETIMENS, mDeviceTimeNs)
                 .set(AMEDIAMETRICS_PROP_EVENT, eventName)
-                .set(AMEDIAMETRICS_PROP_INTERVALCOUNT, (int32_t)mIntervalCount);
+                .set(AMEDIAMETRICS_PROP_INTERVALCOUNT, (int32_t)mIntervalCount)
+                // we set "last" device to indicate the device the group was
+                // associated with (because a createPatch which is logged in ThreadMetrics
+                // could have changed the device).
+                .set(mIsOut
+                        ? AMEDIAMETRICS_PROP_PREFIX_LAST AMEDIAMETRICS_PROP_OUTPUTDEVICES
+                        : AMEDIAMETRICS_PROP_PREFIX_LAST AMEDIAMETRICS_PROP_INPUTDEVICES,
+                        mDevices.c_str());
             if (mDeviceLatencyMs.getN() > 0) {
                 item.set(AMEDIAMETRICS_PROP_DEVICELATENCYMS, mDeviceLatencyMs.getMean());
             }
diff --git a/services/audioflinger/Threads.cpp b/services/audioflinger/Threads.cpp
index 7546c9d..3caa16b 100644
--- a/services/audioflinger/Threads.cpp
+++ b/services/audioflinger/Threads.cpp
@@ -178,6 +178,11 @@
 // Direct output thread minimum sleep time in idle or active(underrun) state
 static const nsecs_t kDirectMinSleepTimeUs = 10000;
 
+// Minimum amount of time between checking to see if the timestamp is advancing
+// for underrun detection. If we check too frequently, we may not detect a
+// timestamp update and will falsely detect underrun.
+static const nsecs_t kMinimumTimeBetweenTimestampChecksNs = 150 /* ms */ * 1000;
+
 // The universal constant for ubiquitous 20ms value. The value of 20ms seems to provide a good
 // balance between power consumption and latency, and allows threads to be scheduled reliably
 // by the CFS scheduler.
@@ -2040,7 +2045,8 @@
         mFastTrackAvailMask(((1 << FastMixerState::sMaxFastTracks) - 1) & ~1),
         mHwSupportsPause(false), mHwPaused(false), mFlushPending(false),
         mLeftVolFloat(-1.0), mRightVolFloat(-1.0),
-        mDownStreamPatch{}
+        mDownStreamPatch{},
+        mIsTimestampAdvancing(kMinimumTimeBetweenTimestampChecksNs)
 {
     snprintf(mThreadName, kThreadNameLength, "AudioOut_%X", id);
     mNBLogWriter = audioFlinger->newWriter_l(kLogSize, mThreadName);
@@ -5902,18 +5908,35 @@
     return trackCount;
 }
 
-bool AudioFlinger::PlaybackThread::checkRunningTimestamp()
+bool AudioFlinger::PlaybackThread::IsTimestampAdvancing::check(AudioStreamOut * output)
 {
+    // Check the timestamp to see if it's advancing once every 150ms. If we check too frequently, we
+    // could falsely detect that the frame position has stalled due to underrun because we haven't
+    // given the Audio HAL enough time to update.
+    const nsecs_t nowNs = systemTime();
+    if (nowNs - mPreviousNs < mMinimumTimeBetweenChecksNs) {
+        return mLatchedValue;
+    }
+    mPreviousNs = nowNs;
+    mLatchedValue = false;
+    // Determine if the presentation position is still advancing.
     uint64_t position = 0;
     struct timespec unused;
-    const status_t ret = mOutput->getPresentationPosition(&position, &unused);
+    const status_t ret = output->getPresentationPosition(&position, &unused);
     if (ret == NO_ERROR) {
-        if (position != mLastCheckedTimestampPosition) {
-            mLastCheckedTimestampPosition = position;
-            return true;
+        if (position != mPreviousPosition) {
+            mPreviousPosition = position;
+            mLatchedValue = true;
         }
     }
-    return false;
+    return mLatchedValue;
+}
+
+void AudioFlinger::PlaybackThread::IsTimestampAdvancing::clear()
+{
+    mLatchedValue = true;
+    mPreviousPosition = 0;
+    mPreviousNs = 0;
 }
 
 // isTrackAllowed_l() must be called with ThreadBase::mLock held
@@ -6348,9 +6371,9 @@
                 // No buffers for this track. Give it a few chances to
                 // fill a buffer, then remove it from active list.
                 // Only consider last track started for mixer state control
+                bool isTimestampAdvancing = mIsTimestampAdvancing.check(mOutput);
                 if (--(track->mRetryCount) <= 0) {
-                    const bool running = checkRunningTimestamp();
-                    if (running) { // still running, give us more time.
+                    if (isTimestampAdvancing) { // HAL is still playing audio, give us more time.
                         track->mRetryCount = kMaxTrackRetriesOffload;
                     } else {
                         ALOGV("BUFFER TIMEOUT: remove track(%d) from active list", trackId);
@@ -6931,9 +6954,9 @@
             } else {
                 // No buffers for this track. Give it a few chances to
                 // fill a buffer, then remove it from active list.
+                bool isTimestampAdvancing = mIsTimestampAdvancing.check(mOutput);
                 if (--(track->mRetryCount) <= 0) {
-                    const bool running = checkRunningTimestamp();
-                    if (running) { // still running, give us more time.
+                    if (isTimestampAdvancing) { // HAL is still playing audio, give us more time.
                         track->mRetryCount = kMaxTrackRetriesOffload;
                     } else {
                         ALOGV("OffloadThread: BUFFER TIMEOUT: remove track(%d) from active list",
@@ -9669,6 +9692,12 @@
     if (isOutput()) {
         ret = AudioSystem::startOutput(portId);
     } else {
+        {
+            // Add the track record before starting input so that the silent status for the
+            // client can be cached.
+            Mutex::Autolock _l(mLock);
+            setClientSilencedState_l(portId, false /*silenced*/);
+        }
         ret = AudioSystem::startInput(portId);
     }
 
@@ -9687,6 +9716,7 @@
         } else {
             mHalStream->stop();
         }
+        eraseClientSilencedState_l(portId);
         return PERMISSION_DENIED;
     }
 
@@ -9695,6 +9725,9 @@
                                         mChannelMask, mSessionId, isOutput(),
                                         client.attributionSource,
                                         IPCThreadState::self()->getCallingPid(), portId);
+    if (!isOutput()) {
+        track->setSilenced_l(isClientSilenced_l(portId));
+    }
 
     if (isOutput()) {
         // force volume update when a new track is added
@@ -9752,6 +9785,7 @@
     }
 
     mActiveTracks.remove(track);
+    eraseClientSilencedState_l(track->portId());
 
     mLock.unlock();
     if (isOutput()) {
@@ -10542,6 +10576,7 @@
             broadcast_l();
         }
     }
+    setClientSilencedIfExists_l(portId, silenced);
 }
 
 void AudioFlinger::MmapCaptureThread::toAudioPortConfig(struct audio_port_config *config)
diff --git a/services/audioflinger/Threads.h b/services/audioflinger/Threads.h
index a401048..386e425 100644
--- a/services/audioflinger/Threads.h
+++ b/services/audioflinger/Threads.h
@@ -1403,13 +1403,38 @@
 
                 std::atomic_bool mCheckOutputStageEffects{};
 
-                // A differential check on the timestamps to see if there is a change in the
-                // timestamp frame position between the last call to checkRunningTimestamp.
-                uint64_t mLastCheckedTimestampPosition = ~0LL;
 
-                bool checkRunningTimestamp();
+                // Provides periodic checking for timestamp advancement for underrun detection.
+                class IsTimestampAdvancing {
+                public:
+                    // The timestamp will not be checked any faster than the specified time.
+                    IsTimestampAdvancing(nsecs_t minimumTimeBetweenChecksNs)
+                        :   mMinimumTimeBetweenChecksNs(minimumTimeBetweenChecksNs)
+                    {
+                        clear();
+                    }
+                    // Check if the presentation position has advanced in the last periodic time.
+                    bool check(AudioStreamOut * output);
+                    // Clear the internal state when the playback state changes for the output
+                    // stream.
+                    void clear();
+                private:
+                    // The minimum time between timestamp checks.
+                    const nsecs_t mMinimumTimeBetweenChecksNs;
+                    // Add differential check on the timestamps to see if there is a change in the
+                    // timestamp frame position between the last call to check.
+                    uint64_t mPreviousPosition;
+                    // The time at which the last check occurred, to ensure we don't check too
+                    // frequently, giving the Audio HAL enough time to update its timestamps.
+                    nsecs_t mPreviousNs;
+                    // The valued is latched so we don't check timestamps too frequently.
+                    bool mLatchedValue;
+                };
+                IsTimestampAdvancing mIsTimestampAdvancing;
 
-    virtual     void flushHw_l() { mLastCheckedTimestampPosition = ~0LL; }
+    virtual     void flushHw_l() {
+                    mIsTimestampAdvancing.clear();
+                }
 };
 
 class MixerThread : public PlaybackThread {
@@ -2105,6 +2130,26 @@
 
     virtual     bool        isStreamInitialized() { return false; }
 
+                void        setClientSilencedState_l(audio_port_handle_t portId, bool silenced) {
+                                mClientSilencedStates[portId] = silenced;
+                            }
+
+                size_t      eraseClientSilencedState_l(audio_port_handle_t portId) {
+                                return mClientSilencedStates.erase(portId);
+                            }
+
+                bool        isClientSilenced_l(audio_port_handle_t portId) const {
+                                const auto it = mClientSilencedStates.find(portId);
+                                return it != mClientSilencedStates.end() ? it->second : false;
+                            }
+
+                void        setClientSilencedIfExists_l(audio_port_handle_t portId, bool silenced) {
+                                const auto it = mClientSilencedStates.find(portId);
+                                if (it != mClientSilencedStates.end()) {
+                                    it->second = silenced;
+                                }
+                            }
+
  protected:
                 void        dumpInternals_l(int fd, const Vector<String16>& args) override;
                 void        dumpTracks_l(int fd, const Vector<String16>& args) override;
@@ -2124,6 +2169,7 @@
                 AudioHwDevice* const    mAudioHwDev;
                 ActiveTracks<MmapTrack> mActiveTracks;
                 float                   mHalVolFloat;
+                std::map<audio_port_handle_t, bool> mClientSilencedStates;
 
                 int32_t                 mNoCallbackWarningCount;
      static     constexpr int32_t       kMaxNoCallbackWarnings = 5;
diff --git a/services/audiopolicy/common/managerdefinitions/include/AudioPolicyMix.h b/services/audiopolicy/common/managerdefinitions/include/AudioPolicyMix.h
index bb1699e..3b19e52 100644
--- a/services/audiopolicy/common/managerdefinitions/include/AudioPolicyMix.h
+++ b/services/audiopolicy/common/managerdefinitions/include/AudioPolicyMix.h
@@ -55,7 +55,7 @@
     status_t getAudioPolicyMix(audio_devices_t deviceType,
             const String8& address, sp<AudioPolicyMix> &policyMix) const;
 
-    status_t registerMix(AudioMix mix, sp<SwAudioOutputDescriptor> desc);
+    status_t registerMix(const AudioMix& mix, const sp<SwAudioOutputDescriptor>& desc);
 
     status_t unregisterMix(const AudioMix& mix);
 
@@ -76,7 +76,7 @@
                               sp<AudioPolicyMix> &primaryMix,
                               std::vector<sp<AudioPolicyMix>> *secondaryMixes);
 
-    sp<DeviceDescriptor> getDeviceAndMixForInputSource(audio_source_t inputSource,
+    sp<DeviceDescriptor> getDeviceAndMixForInputSource(const audio_attributes_t& attributes,
                                                        const DeviceVector &availableDeviceTypes,
                                                        uid_t uid,
                                                        sp<AudioPolicyMix> *policyMix) const;
@@ -124,7 +124,7 @@
     void dump(String8 *dst) const;
 
 private:
-    enum class MixMatchStatus { MATCH, NO_MATCH, INVALID_MIX };
+    enum class MixMatchStatus { MATCH, NO_MATCH };
     MixMatchStatus mixMatch(const AudioMix* mix, size_t mixIndex,
                             const audio_attributes_t& attributes,
                             const audio_config_base_t& config,
diff --git a/services/audiopolicy/common/managerdefinitions/src/AudioPolicyMix.cpp b/services/audiopolicy/common/managerdefinitions/src/AudioPolicyMix.cpp
index 551eab6..fdf5175 100644
--- a/services/audiopolicy/common/managerdefinitions/src/AudioPolicyMix.cpp
+++ b/services/audiopolicy/common/managerdefinitions/src/AudioPolicyMix.cpp
@@ -17,6 +17,7 @@
 #define LOG_TAG "APM_AudioPolicyMix"
 //#define LOG_NDEBUG 0
 
+#include <algorithm>
 #include "AudioPolicyMix.h"
 #include "TypeConverter.h"
 #include "HwModule.h"
@@ -25,6 +26,89 @@
 #include <AudioOutputDescriptor.h>
 
 namespace android {
+namespace {
+
+// Returns true if the criterion matches.
+// The exclude criteria are handled in the same way as positive
+// ones - only condition is matched (the function will return
+// same result both for RULE_MATCH_X and RULE_EXCLUDE_X).
+bool isCriterionMatched(const AudioMixMatchCriterion& criterion,
+                        const audio_attributes_t& attr,
+                        const uid_t uid) {
+    uint32_t ruleWithoutExclusion = criterion.mRule & ~RULE_EXCLUSION_MASK;
+    switch(ruleWithoutExclusion) {
+        case RULE_MATCH_ATTRIBUTE_USAGE:
+            return criterion.mValue.mUsage == attr.usage;
+        case RULE_MATCH_ATTRIBUTE_CAPTURE_PRESET:
+            return criterion.mValue.mSource == attr.source;
+        case RULE_MATCH_UID:
+            return criterion.mValue.mUid == uid;
+        case RULE_MATCH_USERID:
+            {
+                userid_t userId = multiuser_get_user_id(uid);
+                return criterion.mValue.mUserId == userId;
+            }
+    }
+    ALOGE("Encountered invalid mix rule 0x%x", criterion.mRule);
+    return false;
+}
+
+// Returns true if vector of criteria is matched:
+// - If any of the exclude criteria is matched the criteria doesn't match.
+// - Otherwise, for each 'dimension' of positive rule present
+//   (usage, capture preset, uid, userid...) at least one rule must match
+//   for the criteria to match.
+bool areMixCriteriaMatched(const std::vector<AudioMixMatchCriterion>& criteria,
+                           const audio_attributes_t& attr,
+                           const uid_t uid) {
+    // If any of the exclusion criteria are matched the mix doesn't match.
+    auto isMatchingExcludeCriterion = [&](const AudioMixMatchCriterion& c) {
+        return c.isExcludeCriterion() && isCriterionMatched(c, attr, uid);
+    };
+    if (std::any_of(criteria.begin(), criteria.end(), isMatchingExcludeCriterion)) {
+        return false;
+    }
+
+    uint32_t presentPositiveRules = 0; // Bitmask of all present positive criteria.
+    uint32_t matchedPositiveRules = 0; // Bitmask of all matched positive criteria.
+    for (const auto& criterion : criteria) {
+        if (criterion.isExcludeCriterion()) {
+            continue;
+        }
+        presentPositiveRules |= criterion.mRule;
+        if (isCriterionMatched(criterion, attr, uid)) {
+            matchedPositiveRules |= criterion.mRule;
+        }
+    }
+    return presentPositiveRules == matchedPositiveRules;
+}
+
+// Consistency checks: for each "dimension" of rules (usage, uid...), we can
+// only have MATCH rules, or EXCLUDE rules in each dimension, not a combination.
+bool areMixCriteriaConsistent(const std::vector<AudioMixMatchCriterion>& criteria) {
+    std::set<uint32_t> positiveCriteria;
+    for (const AudioMixMatchCriterion& c : criteria) {
+        if (c.isExcludeCriterion()) {
+            continue;
+        }
+        positiveCriteria.insert(c.mRule);
+    }
+
+    auto isConflictingCriterion = [&positiveCriteria](const AudioMixMatchCriterion& c) {
+        uint32_t ruleWithoutExclusion = c.mRule & ~RULE_EXCLUSION_MASK;
+        return c.isExcludeCriterion() &&
+               (positiveCriteria.find(ruleWithoutExclusion) != positiveCriteria.end());
+    };
+    return std::none_of(criteria.begin(), criteria.end(), isConflictingCriterion);
+}
+
+template <typename Predicate>
+void EraseCriteriaIf(std::vector<AudioMixMatchCriterion>& v,
+                     const Predicate& predicate) {
+    v.erase(std::remove_if(v.begin(), v.end(), predicate), v.end());
+}
+
+} // namespace
 
 void AudioPolicyMix::dump(String8 *dst, int spaces, int index) const
 {
@@ -78,7 +162,8 @@
     }
 }
 
-status_t AudioPolicyMixCollection::registerMix(AudioMix mix, sp<SwAudioOutputDescriptor> desc)
+status_t AudioPolicyMixCollection::registerMix(const AudioMix& mix,
+                                               const sp<SwAudioOutputDescriptor>& desc)
 {
     for (size_t i = 0; i < size(); i++) {
         const sp<AudioPolicyMix>& registeredMix = itemAt(i);
@@ -89,12 +174,17 @@
             return BAD_VALUE;
         }
     }
-    sp<AudioPolicyMix> policyMix = new AudioPolicyMix(mix);
+    if (!areMixCriteriaConsistent(mix.mCriteria)) {
+        ALOGE("registerMix(): Mix contains inconsistent criteria "
+              "(MATCH & EXCLUDE criteria of the same type)");
+        return BAD_VALUE;
+    }
+    sp<AudioPolicyMix> policyMix = sp<AudioPolicyMix>::make(mix);
     add(policyMix);
     ALOGD("registerMix(): adding mix for dev=0x%x addr=%s",
             policyMix->mDeviceType, policyMix->mDeviceAddress.string());
 
-    if (desc != 0) {
+    if (desc != nullptr) {
         desc->mPolicyMix = policyMix;
         policyMix->setOutput(desc);
     }
@@ -177,15 +267,9 @@
             continue; // Primary output already found
         }
 
-        switch (mixMatch(policyMix.get(), i, attributes, config, uid)) {
-            case MixMatchStatus::INVALID_MIX:
-                // The mix has contradictory rules, ignore it
-                // TODO: reject invalid mix at registration
-                continue;
-            case MixMatchStatus::NO_MATCH:
-                ALOGV("%s: Mix %zu: does not match", __func__, i);
-                continue; // skip the mix
-            case MixMatchStatus::MATCH:;
+        if(mixMatch(policyMix.get(), i, attributes, config, uid) == MixMatchStatus::NO_MATCH) {
+            ALOGV("%s: Mix %zu: does not match", __func__, i);
+            continue; // skip the mix
         }
 
         if (primaryOutputMix) {
@@ -238,136 +322,19 @@
             return MixMatchStatus::NO_MATCH;
         }
 
-        int userId = (int) multiuser_get_user_id(uid);
-
-        // TODO if adding more player rules (currently only 2), make rule handling "generic"
-        //      as there is no difference in the treatment of usage- or uid-based rules
-        bool hasUsageMatchRules = false;
-        bool hasUsageExcludeRules = false;
-        bool usageMatchFound = false;
-        bool usageExclusionFound = false;
-
-        bool hasUidMatchRules = false;
-        bool hasUidExcludeRules = false;
-        bool uidMatchFound = false;
-        bool uidExclusionFound = false;
-
-        bool hasUserIdExcludeRules = false;
-        bool userIdExclusionFound = false;
-        bool hasUserIdMatchRules = false;
-        bool userIdMatchFound = false;
-
-
-        bool hasAddrMatch = false;
-
-        // iterate over all mix criteria to list what rules this mix contains
-        for (size_t j = 0; j < mix->mCriteria.size(); j++) {
-            ALOGV(" getOutputForAttr: mix %zu: inspecting mix criteria %zu of %zu",
-                    mixIndex, j, mix->mCriteria.size());
-
-            // if there is an address match, prioritize that match
-            if (strncmp(attributes.tags, "addr=", strlen("addr=")) == 0 &&
-                    strncmp(attributes.tags + strlen("addr="),
-                            mix->mDeviceAddress.string(),
-                            AUDIO_ATTRIBUTES_TAGS_MAX_SIZE - strlen("addr=") - 1) == 0) {
-                hasAddrMatch = true;
-                break;
-            }
-
-            switch (mix->mCriteria[j].mRule) {
-            case RULE_MATCH_ATTRIBUTE_USAGE:
-                ALOGV("\tmix has RULE_MATCH_ATTRIBUTE_USAGE for usage %d",
-                                            mix->mCriteria[j].mValue.mUsage);
-                hasUsageMatchRules = true;
-                if (mix->mCriteria[j].mValue.mUsage == attributes.usage) {
-                    // found one match against all allowed usages
-                    usageMatchFound = true;
-                }
-                break;
-            case RULE_EXCLUDE_ATTRIBUTE_USAGE:
-                ALOGV("\tmix has RULE_EXCLUDE_ATTRIBUTE_USAGE for usage %d",
-                        mix->mCriteria[j].mValue.mUsage);
-                hasUsageExcludeRules = true;
-                if (mix->mCriteria[j].mValue.mUsage == attributes.usage) {
-                    // found this usage is to be excluded
-                    usageExclusionFound = true;
-                }
-                break;
-            case RULE_MATCH_UID:
-                ALOGV("\tmix has RULE_MATCH_UID for uid %d", mix->mCriteria[j].mValue.mUid);
-                hasUidMatchRules = true;
-                if (mix->mCriteria[j].mValue.mUid == uid) {
-                    // found one UID match against all allowed UIDs
-                    uidMatchFound = true;
-                }
-                break;
-            case RULE_EXCLUDE_UID:
-                ALOGV("\tmix has RULE_EXCLUDE_UID for uid %d", mix->mCriteria[j].mValue.mUid);
-                hasUidExcludeRules = true;
-                if (mix->mCriteria[j].mValue.mUid == uid) {
-                    // found this UID is to be excluded
-                    uidExclusionFound = true;
-                }
-                break;
-            case RULE_MATCH_USERID:
-                ALOGV("\tmix has RULE_MATCH_USERID for userId %d",
-                    mix->mCriteria[j].mValue.mUserId);
-                hasUserIdMatchRules = true;
-                if (mix->mCriteria[j].mValue.mUserId == userId) {
-                    // found one userId match against all allowed userIds
-                    userIdMatchFound = true;
-                }
-                break;
-            case RULE_EXCLUDE_USERID:
-                ALOGV("\tmix has RULE_EXCLUDE_USERID for userId %d",
-                    mix->mCriteria[j].mValue.mUserId);
-                hasUserIdExcludeRules = true;
-                if (mix->mCriteria[j].mValue.mUserId == userId) {
-                    // found this userId is to be excluded
-                    userIdExclusionFound = true;
-                }
-                break;
-            default:
-                break;
-            }
-
-            // consistency checks: for each "dimension" of rules (usage, uid...), we can
-            // only have MATCH rules, or EXCLUDE rules in each dimension, not a combination
-            if (hasUsageMatchRules && hasUsageExcludeRules) {
-                ALOGE("getOutputForAttr: invalid combination of RULE_MATCH_ATTRIBUTE_USAGE"
-                        " and RULE_EXCLUDE_ATTRIBUTE_USAGE in mix %zu", mixIndex);
-                return MixMatchStatus::INVALID_MIX;
-            }
-            if (hasUidMatchRules && hasUidExcludeRules) {
-                ALOGE("getOutputForAttr: invalid combination of RULE_MATCH_UID"
-                        " and RULE_EXCLUDE_UID in mix %zu", mixIndex);
-                return MixMatchStatus::INVALID_MIX;
-            }
-            if (hasUserIdMatchRules && hasUserIdExcludeRules) {
-                ALOGE("getOutputForAttr: invalid combination of RULE_MATCH_USERID"
-                        " and RULE_EXCLUDE_USERID in mix %zu", mixIndex);
-                    return MixMatchStatus::INVALID_MIX;
-            }
-
-            if ((hasUsageExcludeRules && usageExclusionFound)
-                    || (hasUidExcludeRules && uidExclusionFound)
-                    || (hasUserIdExcludeRules && userIdExclusionFound)) {
-                break; // stop iterating on criteria because an exclusion was found (will fail)
-            }
-        }//iterate on mix criteria
-
-        // determine if exiting on success (or implicit failure as desc is 0)
-        if (hasAddrMatch ||
-                !((hasUsageExcludeRules && usageExclusionFound) ||
-                  (hasUsageMatchRules && !usageMatchFound)  ||
-                  (hasUidExcludeRules && uidExclusionFound) ||
-                  (hasUidMatchRules && !uidMatchFound) ||
-                  (hasUserIdExcludeRules && userIdExclusionFound) ||
-                  (hasUserIdMatchRules && !userIdMatchFound))) {
+        // if there is an address match, prioritize that match
+        if (strncmp(attributes.tags, "addr=", strlen("addr=")) == 0 &&
+                strncmp(attributes.tags + strlen("addr="),
+                        mix->mDeviceAddress.string(),
+                        AUDIO_ATTRIBUTES_TAGS_MAX_SIZE - strlen("addr=") - 1) == 0) {
             ALOGV("\tgetOutputForAttr will use mix %zu", mixIndex);
             return MixMatchStatus::MATCH;
         }
 
+        if (areMixCriteriaMatched(mix->mCriteria, attributes, uid)) {
+            ALOGV("\tgetOutputForAttr will use mix %zu", mixIndex);
+            return MixMatchStatus::MATCH;
+        }
     } else if (mix->mMixType == MIX_TYPE_RECORDERS) {
         if (attributes.usage == AUDIO_USAGE_VIRTUAL_SOURCE &&
                 strncmp(attributes.tags, "addr=", strlen("addr=")) == 0 &&
@@ -398,7 +365,7 @@
 }
 
 sp<DeviceDescriptor> AudioPolicyMixCollection::getDeviceAndMixForInputSource(
-        audio_source_t inputSource,
+        const audio_attributes_t& attributes,
         const DeviceVector &availDevices,
         uid_t uid,
         sp<AudioPolicyMix> *policyMix) const
@@ -408,28 +375,17 @@
         if (mix->mMixType != MIX_TYPE_RECORDERS) {
             continue;
         }
-        for (size_t j = 0; j < mix->mCriteria.size(); j++) {
-            if ((RULE_MATCH_ATTRIBUTE_CAPTURE_PRESET == mix->mCriteria[j].mRule &&
-                    mix->mCriteria[j].mValue.mSource == inputSource) ||
-               (RULE_EXCLUDE_ATTRIBUTE_CAPTURE_PRESET == mix->mCriteria[j].mRule &&
-                    mix->mCriteria[j].mValue.mSource != inputSource) ||
-               (RULE_MATCH_UID == mix->mCriteria[j].mRule &&
-                    mix->mCriteria[j].mValue.mUid == uid) ||
-               (RULE_EXCLUDE_UID == mix->mCriteria[j].mRule &&
-                    mix->mCriteria[j].mValue.mUid != uid)) {
-                // assuming PolicyMix only for remote submix for input
-                // so mix->mDeviceType can only be AUDIO_DEVICE_OUT_REMOTE_SUBMIX
-                audio_devices_t device = AUDIO_DEVICE_IN_REMOTE_SUBMIX;
-                auto mixDevice =
-                        availDevices.getDevice(device, mix->mDeviceAddress, AUDIO_FORMAT_DEFAULT);
+        if (areMixCriteriaMatched(mix->mCriteria, attributes, uid)) {
+            // Assuming PolicyMix only for remote submix for input
+            // so mix->mDeviceType can only be AUDIO_DEVICE_OUT_REMOTE_SUBMIX.
+            auto mixDevice = availDevices.getDevice(AUDIO_DEVICE_IN_REMOTE_SUBMIX,
+             mix->mDeviceAddress, AUDIO_FORMAT_DEFAULT);
                 if (mixDevice != nullptr) {
                     if (policyMix != nullptr) {
                         *policyMix = mix;
                     }
                     return mixDevice;
                 }
-                break;
-            }
         }
     }
     return nullptr;
@@ -500,7 +456,7 @@
     //     AND it doesn't have a "match uid" rule
     //   THEN add a rule to exclude the uid
     for (size_t i = 0; i < size(); i++) {
-        const AudioPolicyMix *mix = itemAt(i).get();
+        AudioPolicyMix *mix = itemAt(i).get();
         if (!mix->isDeviceAffinityCompatible()) {
             continue;
         }
@@ -530,27 +486,16 @@
 status_t AudioPolicyMixCollection::removeUidDeviceAffinities(uid_t uid) {
     // for each player mix: remove existing rules that match or exclude this uid
     for (size_t i = 0; i < size(); i++) {
-        bool foundUidRule = false;
-        const AudioPolicyMix *mix = itemAt(i).get();
+        AudioPolicyMix *mix = itemAt(i).get();
         if (!mix->isDeviceAffinityCompatible()) {
             continue;
         }
-        std::vector<size_t> criteriaToRemove;
-        for (size_t j = 0; j < mix->mCriteria.size(); j++) {
-            const uint32_t rule = mix->mCriteria[j].mRule;
-            // is this rule excluding the uid? (not considering uid match rules
-            // as those are not used for uid-device affinity)
-            if (rule == RULE_EXCLUDE_UID
-                    && uid == mix->mCriteria[j].mValue.mUid) {
-                foundUidRule = true;
-                criteriaToRemove.insert(criteriaToRemove.begin(), j);
-            }
-        }
-        if (foundUidRule) {
-            for (size_t j = 0; j < criteriaToRemove.size(); j++) {
-                mix->mCriteria.removeAt(criteriaToRemove[j]);
-            }
-        }
+
+        // is this rule excluding the uid? (not considering uid match rules
+        // as those are not used for uid-device affinity)
+        EraseCriteriaIf(mix->mCriteria, [uid](const AudioMixMatchCriterion& c) {
+            return c.mRule == RULE_EXCLUDE_UID && c.mValue.mUid == uid;
+        });
     }
     return NO_ERROR;
 }
@@ -585,7 +530,7 @@
     //    "match userId" rule for this userId, return an error
     //    (adding a userId-device affinity would result in contradictory rules)
     for (size_t i = 0; i < size(); i++) {
-        const AudioPolicyMix* mix = itemAt(i).get();
+        AudioPolicyMix* mix = itemAt(i).get();
         if (!mix->isDeviceAffinityCompatible()) {
             continue;
         }
@@ -602,7 +547,7 @@
     //     AND it doesn't have a "match userId" rule
     //   THEN add a rule to exclude the userId
     for (size_t i = 0; i < size(); i++) {
-        const AudioPolicyMix *mix = itemAt(i).get();
+        AudioPolicyMix *mix = itemAt(i).get();
         if (!mix->isDeviceAffinityCompatible()) {
             continue;
         }
@@ -632,27 +577,16 @@
 status_t AudioPolicyMixCollection::removeUserIdDeviceAffinities(int userId) {
     // for each player mix: remove existing rules that match or exclude this userId
     for (size_t i = 0; i < size(); i++) {
-        bool foundUserIdRule = false;
-        const AudioPolicyMix *mix = itemAt(i).get();
+        AudioPolicyMix *mix = itemAt(i).get();
         if (!mix->isDeviceAffinityCompatible()) {
             continue;
         }
-        std::vector<size_t> criteriaToRemove;
-        for (size_t j = 0; j < mix->mCriteria.size(); j++) {
-            const uint32_t rule = mix->mCriteria[j].mRule;
-            // is this rule excluding the userId? (not considering userId match rules
-            // as those are not used for userId-device affinity)
-            if (rule == RULE_EXCLUDE_USERID
-                    && userId == mix->mCriteria[j].mValue.mUserId) {
-                foundUserIdRule = true;
-                criteriaToRemove.insert(criteriaToRemove.begin(), j);
-            }
-        }
-        if (foundUserIdRule) {
-            for (size_t j = 0; j < criteriaToRemove.size(); j++) {
-                mix->mCriteria.removeAt(criteriaToRemove[j]);
-            }
-        }
+
+        // is this rule excluding the userId? (not considering userId match rules
+        // as those are not used for userId-device affinity)
+        EraseCriteriaIf(mix->mCriteria, [userId](const AudioMixMatchCriterion& c) {
+            return c.mRule == RULE_EXCLUDE_USERID && c.mValue.mUserId == userId;
+        });
     }
     return NO_ERROR;
 }
diff --git a/services/audiopolicy/engine/common/src/VolumeCurve.cpp b/services/audiopolicy/engine/common/src/VolumeCurve.cpp
index 8aa4b08..fccbc60 100644
--- a/services/audiopolicy/engine/common/src/VolumeCurve.cpp
+++ b/services/audiopolicy/engine/common/src/VolumeCurve.cpp
@@ -52,7 +52,7 @@
             volIdx = volIndexMin;
         } else {
             // This would result in a divide-by-zero below
-            ALOG_ASSERT(volIndexmin != volIndexMax, "Invalid volume index range & value: 0");
+            ALOG_ASSERT(volIndexMin != volIndexMax, "Invalid volume index range & value: 0");
             return NAN;
         }
     } else {
diff --git a/services/audiopolicy/engineconfigurable/src/Engine.cpp b/services/audiopolicy/engineconfigurable/src/Engine.cpp
index 3d74920..2831a9b 100644
--- a/services/audiopolicy/engineconfigurable/src/Engine.cpp
+++ b/services/audiopolicy/engineconfigurable/src/Engine.cpp
@@ -333,7 +333,7 @@
         return device;
     }
 
-    device = policyMixes.getDeviceAndMixForInputSource(attr.source,
+    device = policyMixes.getDeviceAndMixForInputSource(attr,
                                                        availableInputDevices,
                                                        uid,
                                                        mix);
diff --git a/services/audiopolicy/enginedefault/src/Engine.cpp b/services/audiopolicy/enginedefault/src/Engine.cpp
index d4d514d..d927f6b 100644
--- a/services/audiopolicy/enginedefault/src/Engine.cpp
+++ b/services/audiopolicy/enginedefault/src/Engine.cpp
@@ -766,7 +766,7 @@
         return device;
     }
 
-    device = policyMixes.getDeviceAndMixForInputSource(attr.source,
+    device = policyMixes.getDeviceAndMixForInputSource(attr,
                                                        availableInputDevices,
                                                        uid,
                                                        mix);
diff --git a/services/audiopolicy/fuzzer/audiopolicy_fuzzer.cpp b/services/audiopolicy/fuzzer/audiopolicy_fuzzer.cpp
index 48f7410..28268c9 100644
--- a/services/audiopolicy/fuzzer/audiopolicy_fuzzer.cpp
+++ b/services/audiopolicy/fuzzer/audiopolicy_fuzzer.cpp
@@ -544,10 +544,11 @@
 status_t AudioPolicyManagerFuzzerDynamicPolicy::addPolicyMix(
     int mixType, int mixFlag, audio_devices_t deviceType, std::string mixAddress,
     const audio_config_t &audioConfig, const std::vector<PolicyMixTuple> &rules) {
-    Vector<AudioMixMatchCriterion> myMixMatchCriteria;
+    std::vector<AudioMixMatchCriterion> myMixMatchCriteria;
 
+    myMixMatchCriteria.reserve(rules.size());
     for (const auto &rule : rules) {
-        myMixMatchCriteria.add(
+        myMixMatchCriteria.push_back(
             AudioMixMatchCriterion(std::get<0>(rule), std::get<1>(rule), std::get<2>(rule)));
     }
 
diff --git a/services/audiopolicy/managerdefault/AudioPolicyManager.cpp b/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
index 83de3e2..7d7ed93 100644
--- a/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
+++ b/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
@@ -4097,6 +4097,10 @@
 
 status_t AudioPolicyManager::getDirectProfilesForAttributes(const audio_attributes_t* attr,
                                                 AudioProfileVector& audioProfilesVector) {
+    if (mEffects.isNonOffloadableEffectEnabled()) {
+        return OK;
+    }
+
     AudioDeviceTypeAddrVector devices;
     status_t status = getDevicesForAttributes(*attr, &devices, false /* forVolume */);
     if (status != OK) {
diff --git a/services/audiopolicy/service/AudioPolicyService.cpp b/services/audiopolicy/service/AudioPolicyService.cpp
index 50a536b..beb26b6 100644
--- a/services/audiopolicy/service/AudioPolicyService.cpp
+++ b/services/audiopolicy/service/AudioPolicyService.cpp
@@ -272,6 +272,11 @@
         if (hasSpatializer) {
             mSpatializer = Spatializer::create(this);
         }
+        if (mSpatializer == nullptr) {
+            // No spatializer created, signal the reason: NO_INIT a failure, OK means intended.
+            const status_t createStatus = hasSpatializer ? NO_INIT : OK;
+            Spatializer::sendEmptyCreateSpatializerMetricWithStatus(createStatus);
+        }
     }
     AudioSystem::audioPolicyReady();
 }
diff --git a/services/audiopolicy/service/Spatializer.cpp b/services/audiopolicy/service/Spatializer.cpp
index 6ed80fd..9c989ce 100644
--- a/services/audiopolicy/service/Spatializer.cpp
+++ b/services/audiopolicy/service/Spatializer.cpp
@@ -387,6 +387,18 @@
     return NO_ERROR;
 }
 
+/* static */
+void Spatializer::sendEmptyCreateSpatializerMetricWithStatus(status_t status) {
+    mediametrics::LogItem(kDefaultMetricsId)
+        .set(AMEDIAMETRICS_PROP_EVENT, AMEDIAMETRICS_PROP_EVENT_VALUE_CREATE)
+        .set(AMEDIAMETRICS_PROP_CHANNELMASKS, "")
+        .set(AMEDIAMETRICS_PROP_LEVELS, "")
+        .set(AMEDIAMETRICS_PROP_MODES, "")
+        .set(AMEDIAMETRICS_PROP_HEADTRACKINGMODES, "")
+        .set(AMEDIAMETRICS_PROP_STATUS, (int32_t)status)
+        .record();
+}
+
 /** Gets the channel mask, sampling rate and format set for the spatializer input. */
 audio_config_base_t Spatializer::getAudioInConfig() const {
     std::lock_guard lock(mLock);
diff --git a/services/audiopolicy/service/Spatializer.h b/services/audiopolicy/service/Spatializer.h
index c9071d4..2687b5c 100644
--- a/services/audiopolicy/service/Spatializer.h
+++ b/services/audiopolicy/service/Spatializer.h
@@ -198,6 +198,11 @@
         return ss;
     };
 
+    // If the Spatializer is not created, we send the status for metrics purposes.
+    // OK:      Spatializer not expected to be created.
+    // NO_INIT: Spatializer creation failed.
+    static void sendEmptyCreateSpatializerMetricWithStatus(status_t status);
+
 private:
     Spatializer(effect_descriptor_t engineDescriptor,
                      SpatializerPolicyCallback *callback);
@@ -351,7 +356,9 @@
     SpatializerPolicyCallback* const mPolicyCallback;
 
     /** Currently there is only one version of the spatializer running */
-    const std::string mMetricsId = AMEDIAMETRICS_KEY_PREFIX_AUDIO_SPATIALIZER "0";
+    static constexpr const char* kDefaultMetricsId =
+            AMEDIAMETRICS_KEY_PREFIX_AUDIO_SPATIALIZER "0";
+    const std::string mMetricsId = kDefaultMetricsId;
 
     /** Mutex protecting internal state */
     mutable std::mutex mLock;
diff --git a/services/audiopolicy/tests/audiopolicymanager_tests.cpp b/services/audiopolicy/tests/audiopolicymanager_tests.cpp
index bb00c48..d51c57c 100644
--- a/services/audiopolicy/tests/audiopolicymanager_tests.cpp
+++ b/services/audiopolicy/tests/audiopolicymanager_tests.cpp
@@ -42,6 +42,32 @@
 using testing::UnorderedElementsAre;
 using android::content::AttributionSourceState;
 
+namespace {
+
+AudioMixMatchCriterion createUidCriterion(uint32_t uid, bool exclude = false) {
+    AudioMixMatchCriterion criterion;
+    criterion.mValue.mUid = uid;
+    criterion.mRule = exclude ? RULE_EXCLUDE_UID : RULE_MATCH_UID;
+    return criterion;
+}
+
+AudioMixMatchCriterion createUsageCriterion(audio_usage_t usage, bool exclude = false) {
+    AudioMixMatchCriterion criterion;
+    criterion.mValue.mUsage = usage;
+    criterion.mRule = exclude ? RULE_EXCLUDE_ATTRIBUTE_USAGE : RULE_MATCH_ATTRIBUTE_USAGE;
+    return criterion;
+}
+
+AudioMixMatchCriterion createCapturePresetCriterion(audio_source_t source, bool exclude = false) {
+    AudioMixMatchCriterion criterion;
+    criterion.mValue.mSource = source;
+    criterion.mRule = exclude ?
+        RULE_EXCLUDE_ATTRIBUTE_CAPTURE_PRESET : RULE_MATCH_ATTRIBUTE_CAPTURE_PRESET;
+    return criterion;
+}
+
+} // namespace
+
 TEST(AudioPolicyManagerTestInit, EngineFailure) {
     AudioPolicyTestClient client;
     AudioPolicyTestManager manager(&client);
@@ -943,15 +969,13 @@
     }
 }
 
-using PolicyMixTuple = std::tuple<audio_usage_t, audio_source_t, uint32_t>;
-
 class AudioPolicyManagerTestDynamicPolicy : public AudioPolicyManagerTestWithConfigurationFile {
 protected:
     void TearDown() override;
 
     status_t addPolicyMix(int mixType, int mixFlag, audio_devices_t deviceType,
             std::string mixAddress, const audio_config_t& audioConfig,
-            const std::vector<PolicyMixTuple>& rules);
+            const std::vector<AudioMixMatchCriterion>& matchCriteria);
     void clearPolicyMix();
 
     Vector<AudioMix> mAudioMixes;
@@ -965,15 +989,8 @@
 
 status_t AudioPolicyManagerTestDynamicPolicy::addPolicyMix(int mixType, int mixFlag,
         audio_devices_t deviceType, std::string mixAddress, const audio_config_t& audioConfig,
-        const std::vector<PolicyMixTuple>& rules) {
-    Vector<AudioMixMatchCriterion> myMixMatchCriteria;
-
-    for(const auto &rule: rules) {
-        myMixMatchCriteria.add(AudioMixMatchCriterion(
-                std::get<0>(rule), std::get<1>(rule), std::get<2>(rule)));
-    }
-
-    AudioMix myAudioMix(myMixMatchCriteria, mixType, audioConfig, mixFlag,
+        const std::vector<AudioMixMatchCriterion>& matchCriteria = {}) {
+    AudioMix myAudioMix(matchCriteria, mixType, audioConfig, mixFlag,
             String8(mixAddress.c_str()), 0);
     myAudioMix.mDeviceType = deviceType;
     // Clear mAudioMix before add new one to make sure we don't add already exist mixes.
@@ -1007,13 +1024,13 @@
 
     // Only capture of playback is allowed in LOOP_BACK &RENDER mode
     ret = addPolicyMix(MIX_TYPE_RECORDERS, MIX_ROUTE_FLAG_LOOP_BACK_AND_RENDER,
-            AUDIO_DEVICE_OUT_REMOTE_SUBMIX, "", audioConfig, std::vector<PolicyMixTuple>());
+            AUDIO_DEVICE_OUT_REMOTE_SUBMIX, "", audioConfig);
     ASSERT_EQ(INVALID_OPERATION, ret);
 
     // Fail due to the device is already connected.
     clearPolicyMix();
     ret = addPolicyMix(MIX_TYPE_PLAYERS, MIX_ROUTE_FLAG_LOOP_BACK,
-            AUDIO_DEVICE_OUT_REMOTE_SUBMIX, "", audioConfig, std::vector<PolicyMixTuple>());
+            AUDIO_DEVICE_OUT_REMOTE_SUBMIX, "", audioConfig);
     ASSERT_EQ(INVALID_OPERATION, ret);
 
     // The first time to register policy mixes with valid parameter should succeed.
@@ -1022,8 +1039,7 @@
     audioConfig.format = AUDIO_FORMAT_PCM_16_BIT;
     audioConfig.sample_rate = k48000SamplingRate;
     ret = addPolicyMix(MIX_TYPE_PLAYERS, MIX_ROUTE_FLAG_LOOP_BACK,
-            AUDIO_DEVICE_OUT_REMOTE_SUBMIX, mMixAddress, audioConfig,
-            std::vector<PolicyMixTuple>());
+            AUDIO_DEVICE_OUT_REMOTE_SUBMIX, mMixAddress, audioConfig);
     ASSERT_EQ(NO_ERROR, ret);
     // Registering the same policy mixes should fail.
     ret = mManager->registerPolicyMixes(mAudioMixes);
@@ -1034,19 +1050,19 @@
     // This will need to be updated if earpiece is added in the test configuration file.
     clearPolicyMix();
     ret = addPolicyMix(MIX_TYPE_PLAYERS, MIX_ROUTE_FLAG_RENDER,
-            AUDIO_DEVICE_OUT_EARPIECE, "", audioConfig, std::vector<PolicyMixTuple>());
+            AUDIO_DEVICE_OUT_EARPIECE, "", audioConfig);
     ASSERT_EQ(INVALID_OPERATION, ret);
 
     // Registration should fail due to output not found.
     clearPolicyMix();
     ret = addPolicyMix(MIX_TYPE_PLAYERS, MIX_ROUTE_FLAG_RENDER,
-            AUDIO_DEVICE_OUT_REMOTE_SUBMIX, "", audioConfig, std::vector<PolicyMixTuple>());
+            AUDIO_DEVICE_OUT_REMOTE_SUBMIX, "", audioConfig);
     ASSERT_EQ(INVALID_OPERATION, ret);
 
     // The first time to register valid policy mixes should succeed.
     clearPolicyMix();
     ret = addPolicyMix(MIX_TYPE_PLAYERS, MIX_ROUTE_FLAG_RENDER,
-            AUDIO_DEVICE_OUT_SPEAKER, "", audioConfig, std::vector<PolicyMixTuple>());
+            AUDIO_DEVICE_OUT_SPEAKER, "", audioConfig);
     ASSERT_EQ(NO_ERROR, ret);
     // Registering the same policy mixes should fail.
     ret = mManager->registerPolicyMixes(mAudioMixes);
@@ -1061,8 +1077,7 @@
     audioConfig.format = AUDIO_FORMAT_PCM_16_BIT;
     audioConfig.sample_rate = k48000SamplingRate;
     ret = addPolicyMix(MIX_TYPE_PLAYERS, MIX_ROUTE_FLAG_LOOP_BACK,
-            AUDIO_DEVICE_OUT_REMOTE_SUBMIX, mMixAddress, audioConfig,
-            std::vector<PolicyMixTuple>());
+            AUDIO_DEVICE_OUT_REMOTE_SUBMIX, mMixAddress, audioConfig);
     ASSERT_EQ(NO_ERROR, ret);
 
     // After successfully registering policy mixes, it should be able to unregister.
@@ -1075,6 +1090,37 @@
     ASSERT_EQ(INVALID_OPERATION, ret);
 }
 
+TEST_F(AudioPolicyManagerTestDynamicPolicy, RegisterPolicyWithConsistentMixSucceeds) {
+    audio_config_t audioConfig = AUDIO_CONFIG_INITIALIZER;
+    audioConfig.channel_mask = AUDIO_CHANNEL_OUT_STEREO;
+    audioConfig.format = AUDIO_FORMAT_PCM_16_BIT;
+    audioConfig.sample_rate = k48000SamplingRate;
+
+    std::vector<AudioMixMatchCriterion> mixMatchCriteria = {
+        createUidCriterion(/*uid=*/42),
+        createUsageCriterion(AUDIO_USAGE_MEDIA, /*exclude=*/true)};
+    status_t ret = addPolicyMix(MIX_TYPE_PLAYERS, MIX_ROUTE_FLAG_LOOP_BACK,
+                                AUDIO_DEVICE_OUT_REMOTE_SUBMIX, mMixAddress, audioConfig,
+                                mixMatchCriteria);
+    ASSERT_EQ(NO_ERROR, ret);
+}
+
+TEST_F(AudioPolicyManagerTestDynamicPolicy, RegisterPolicyWithInconsistentMixFails) {
+    audio_config_t audioConfig = AUDIO_CONFIG_INITIALIZER;
+    audioConfig.channel_mask = AUDIO_CHANNEL_OUT_STEREO;
+    audioConfig.format = AUDIO_FORMAT_PCM_16_BIT;
+    audioConfig.sample_rate = k48000SamplingRate;
+
+    std::vector<AudioMixMatchCriterion> mixMatchCriteria = {
+        createUidCriterion(/*uid=*/42),
+        createUidCriterion(/*uid=*/1235, /*exclude=*/true),
+        createUsageCriterion(AUDIO_USAGE_MEDIA, /*exclude=*/true)};
+    status_t ret = addPolicyMix(MIX_TYPE_PLAYERS, MIX_ROUTE_FLAG_LOOP_BACK,
+                                AUDIO_DEVICE_OUT_REMOTE_SUBMIX, mMixAddress, audioConfig,
+                                mixMatchCriteria);
+    ASSERT_EQ(INVALID_OPERATION, ret);
+}
+
 class AudioPolicyManagerTestForHdmi
         : public AudioPolicyManagerTestWithConfigurationFile,
           public testing::WithParamInterface<audio_format_t> {
@@ -1299,7 +1345,7 @@
     audioConfig.format = AUDIO_FORMAT_PCM_16_BIT;
     audioConfig.sample_rate = k48000SamplingRate;
     ret = addPolicyMix(MIX_TYPE_PLAYERS, MIX_ROUTE_FLAG_LOOP_BACK,
-            AUDIO_DEVICE_OUT_REMOTE_SUBMIX, "", audioConfig, std::vector<PolicyMixTuple>());
+            AUDIO_DEVICE_OUT_REMOTE_SUBMIX, "", audioConfig);
     ASSERT_EQ(INVALID_OPERATION, ret);
 
     ret = mManager->unregisterPolicyMixes(mAudioMixes);
@@ -1314,9 +1360,9 @@
 
     std::unique_ptr<RecordingActivityTracker> mTracker;
 
-    std::vector<PolicyMixTuple> mUsageRules = {
-            {AUDIO_USAGE_MEDIA, AUDIO_SOURCE_DEFAULT, RULE_MATCH_ATTRIBUTE_USAGE},
-            {AUDIO_USAGE_ALARM, AUDIO_SOURCE_DEFAULT, RULE_MATCH_ATTRIBUTE_USAGE}
+    std::vector<AudioMixMatchCriterion> mUsageRules = {
+            createUsageCriterion(AUDIO_USAGE_MEDIA),
+            createUsageCriterion(AUDIO_USAGE_ALARM)
     };
 
     struct audio_port_v7 mInjectionPort;
@@ -1376,9 +1422,10 @@
     getOutputForAttr(&playbackRoutedPortId, AUDIO_FORMAT_PCM_16_BIT, AUDIO_CHANNEL_OUT_STEREO,
             k48000SamplingRate, AUDIO_OUTPUT_FLAG_NONE, nullptr /*output*/, nullptr /*portId*/,
             attr);
-    if (std::find_if(begin(mUsageRules), end(mUsageRules), [&usage](const auto &usageRule) {
-            return (std::get<0>(usageRule) == usage) &&
-            (std::get<2>(usageRule) == RULE_MATCH_ATTRIBUTE_USAGE);}) != end(mUsageRules) ||
+    if (std::find_if(begin(mUsageRules), end(mUsageRules),
+                [&usage](const AudioMixMatchCriterion &c) {
+                              return c.mRule == RULE_MATCH_ATTRIBUTE_USAGE &&
+                                     c.mValue.mUsage == usage;}) != end(mUsageRules) ||
             (strncmp(attr.tags, "addr=", strlen("addr=")) == 0 &&
                     strncmp(attr.tags + strlen("addr="), mMixAddress.c_str(),
                     AUDIO_ATTRIBUTES_TAGS_MAX_SIZE - strlen("addr=") - 1) == 0)) {
@@ -1499,10 +1546,10 @@
 
     std::unique_ptr<RecordingActivityTracker> mTracker;
 
-    std::vector<PolicyMixTuple> mSourceRules = {
-        {AUDIO_USAGE_UNKNOWN, AUDIO_SOURCE_CAMCORDER, RULE_MATCH_ATTRIBUTE_CAPTURE_PRESET},
-        {AUDIO_USAGE_UNKNOWN, AUDIO_SOURCE_MIC, RULE_MATCH_ATTRIBUTE_CAPTURE_PRESET},
-        {AUDIO_USAGE_UNKNOWN, AUDIO_SOURCE_VOICE_COMMUNICATION, RULE_MATCH_ATTRIBUTE_CAPTURE_PRESET}
+    std::vector<AudioMixMatchCriterion> mSourceRules = {
+        createCapturePresetCriterion(AUDIO_SOURCE_CAMCORDER),
+        createCapturePresetCriterion(AUDIO_SOURCE_MIC),
+        createCapturePresetCriterion(AUDIO_SOURCE_VOICE_COMMUNICATION)
     };
 
     struct audio_port_v7 mExtractionPort;
@@ -1562,9 +1609,10 @@
     audio_port_handle_t portId = AUDIO_PORT_HANDLE_NONE;
     getInputForAttr(attr, mTracker->getRiid(), &captureRoutedPortId, AUDIO_FORMAT_PCM_16_BIT,
             AUDIO_CHANNEL_IN_STEREO, k48000SamplingRate, AUDIO_INPUT_FLAG_NONE, &portId);
-    if (std::find_if(begin(mSourceRules), end(mSourceRules), [&source](const auto &sourceRule) {
-            return (std::get<1>(sourceRule) == source) &&
-            (std::get<2>(sourceRule) == RULE_MATCH_ATTRIBUTE_CAPTURE_PRESET);})
+    if (std::find_if(begin(mSourceRules), end(mSourceRules),
+               [&source](const AudioMixMatchCriterion &c) {
+            return c.mRule == RULE_MATCH_ATTRIBUTE_CAPTURE_PRESET &&
+                   c.mValue.mSource == source;})
             != end(mSourceRules)) {
         EXPECT_EQ(mExtractionPort.id, captureRoutedPortId);
     } else {
@@ -1801,7 +1849,7 @@
     audio_config_t audioConfig = AUDIO_CONFIG_INITIALIZER;
     const std::string kTestBusMediaOutput = "bus0_media_out";
     ret = addPolicyMix(MIX_TYPE_PLAYERS, MIX_ROUTE_FLAG_RENDER,
-            AUDIO_DEVICE_OUT_BUS, kTestBusMediaOutput, audioConfig, std::vector<PolicyMixTuple>());
+            AUDIO_DEVICE_OUT_BUS, kTestBusMediaOutput, audioConfig);
     ASSERT_EQ(NO_ERROR, ret);
 
     audio_port_handle_t selectedDeviceId = AUDIO_PORT_HANDLE_NONE;
diff --git a/services/mediametrics/AudioAnalytics.cpp b/services/mediametrics/AudioAnalytics.cpp
index 12593ff..b03e418 100644
--- a/services/mediametrics/AudioAnalytics.cpp
+++ b/services/mediametrics/AudioAnalytics.cpp
@@ -788,15 +788,9 @@
     int32_t frameCount = 0;
     mAudioAnalytics.mAnalyticsState->timeMachine().get(
             key, AMEDIAMETRICS_PROP_FRAMECOUNT, &frameCount);
-    std::string inputDevicePairs;
-    mAudioAnalytics.mAnalyticsState->timeMachine().get(
-            key, AMEDIAMETRICS_PROP_INPUTDEVICES, &inputDevicePairs);
     int32_t intervalCount = 0;
     mAudioAnalytics.mAnalyticsState->timeMachine().get(
             key, AMEDIAMETRICS_PROP_INTERVALCOUNT, &intervalCount);
-    std::string outputDevicePairs;
-    mAudioAnalytics.mAnalyticsState->timeMachine().get(
-            key, AMEDIAMETRICS_PROP_OUTPUTDEVICES, &outputDevicePairs);
     int32_t sampleRate = 0;
     mAudioAnalytics.mAnalyticsState->timeMachine().get(
             key, AMEDIAMETRICS_PROP_SAMPLERATE, &sampleRate);
@@ -804,53 +798,16 @@
     mAudioAnalytics.mAnalyticsState->timeMachine().get(
             key, AMEDIAMETRICS_PROP_FLAGS, &flags);
 
-    // We may have several devices.
-    // Accumulate the bit flags for input and output devices.
-    std::stringstream oss;
-    long_enum_type_t outputDeviceBits{};
-    {   // compute outputDevices
-        const auto devaddrvec = stringutils::getDeviceAddressPairs(outputDevicePairs);
-        for (const auto& [device, addr] : devaddrvec) {
-            if (oss.tellp() > 0) oss << "|";  // delimit devices with '|'.
-            oss << device;
-            outputDeviceBits += types::lookup<types::OUTPUT_DEVICE, long_enum_type_t>(device);
-        }
-    }
-    const std::string outputDevices = oss.str();
-
-    std::stringstream iss;
-    long_enum_type_t inputDeviceBits{};
-    {   // compute inputDevices
-        const auto devaddrvec = stringutils::getDeviceAddressPairs(inputDevicePairs);
-        for (const auto& [device, addr] : devaddrvec) {
-            if (iss.tellp() > 0) iss << "|";  // delimit devices with '|'.
-            iss << device;
-            inputDeviceBits += types::lookup<types::INPUT_DEVICE, long_enum_type_t>(device);
-        }
-    }
-    const std::string inputDevices = iss.str();
-
-    // Get connected device name if from bluetooth.
-    bool isBluetooth = false;
-
-    std::string inputDeviceNames;  // not filled currently.
-    std::string outputDeviceNames;
-    if (outputDevices.find("AUDIO_DEVICE_OUT_BLUETOOTH") != std::string::npos) {
-        isBluetooth = true;
-        outputDeviceNames = SUPPRESSED;
-#if 0   // TODO(b/161554630) sanitize name
-        mAudioAnalytics.mAnalyticsState->timeMachine().get(
-            "audio.device.bt_a2dp", AMEDIAMETRICS_PROP_NAME, &outputDeviceNames);
-        // Remove | if present
-        stringutils::replace(outputDeviceNames, "|", '?');
-        if (outputDeviceNames.size() > STATSD_DEVICE_NAME_MAX_LENGTH) {
-            outputDeviceNames.resize(STATSD_DEVICE_NAME_MAX_LENGTH); // truncate
-        }
-#endif
-    }
-
     switch (itemType) {
     case RECORD: {
+        std::string inputDevicePairs;
+        mAudioAnalytics.mAnalyticsState->timeMachine().get(
+                key, AMEDIAMETRICS_PROP_INPUTDEVICES, &inputDevicePairs);
+
+        const auto [ inputDeviceStatsd, inputDevices ] =
+                stringutils::parseInputDevicePairs(inputDevicePairs);
+        const std::string inputDeviceNames;  // not filled currently.
+
         std::string callerName;
         const bool clientCalled = mAudioAnalytics.mAnalyticsState->timeMachine().get(
                 key, AMEDIAMETRICS_PROP_CALLERNAME, &callerName) == OK;
@@ -886,7 +843,7 @@
 
         LOG(LOG_LEVEL) << "key:" << key
               << " id:" << id
-              << " inputDevices:" << inputDevices << "(" << inputDeviceBits
+              << " inputDevices:" << inputDevices << "(" << inputDeviceStatsd
               << ") inputDeviceNames:" << inputDeviceNames
               << " deviceTimeNs:" << deviceTimeNs
               << " encoding:" << encoding << "(" << encodingForStats
@@ -904,7 +861,7 @@
                 && mAudioAnalytics.mDeliverStatistics) {
             const auto [ result, str ] = sendToStatsd(AudioRecordDeviceUsageFields,
                     CONDITION(android::util::MEDIAMETRICS_AUDIORECORDDEVICEUSAGE_REPORTED)
-                    , ENUM_EXTRACT(inputDeviceBits)
+                    , ENUM_EXTRACT(inputDeviceStatsd)
                     , inputDeviceNames.c_str()
                     , deviceTimeNs
                     , ENUM_EXTRACT(encodingForStats)
@@ -933,18 +890,35 @@
                 key, AMEDIAMETRICS_PROP_UNDERRUN, &underrun);
 
         const bool isInput = types::isInputThreadType(type);
+
+        // get device information
+        std::string devicePairs;
+        std::string deviceStatsd;
+        std::string devices;
+        std::string deviceNames;
+        if (isInput) {
+            // Note we get the "last" device which is the one associated with group.
+            item->get(AMEDIAMETRICS_PROP_PREFIX_LAST AMEDIAMETRICS_PROP_INPUTDEVICES,
+                    &devicePairs);
+            std::tie(deviceStatsd, devices) = stringutils::parseInputDevicePairs(devicePairs);
+        } else {
+            // Note we get the "last" device which is the one associated with group.
+            item->get(AMEDIAMETRICS_PROP_PREFIX_LAST AMEDIAMETRICS_PROP_OUTPUTDEVICES,
+                    &devicePairs);
+            std::tie(deviceStatsd, devices) = stringutils::parseOutputDevicePairs(devicePairs);
+            deviceNames = mAudioAnalytics.getDeviceNamesFromOutputDevices(devices);
+        }
+
         const auto encodingForStats = types::lookup<types::ENCODING, short_enum_type_t>(encoding);
         const auto flagsForStats =
                 (isInput ? types::lookup<types::INPUT_FLAG, short_enum_type_t>(flags)
                         : types::lookup<types::OUTPUT_FLAG, short_enum_type_t>(flags));
         const auto typeForStats = types::lookup<types::THREAD_TYPE, short_enum_type_t>(type);
 
-        LOG(LOG_LEVEL) << "key:" << key
+         LOG(LOG_LEVEL) << "key:" << key
               << " id:" << id
-              << " inputDevices:" << inputDevices << "(" << inputDeviceBits
-              << ") outputDevices:" << outputDevices << "(" << outputDeviceBits
-              << ") inputDeviceNames:" << inputDeviceNames
-              << " outputDeviceNames:" << outputDeviceNames
+              << " devices:" << devices << "(" << deviceStatsd
+              << ") deviceNames:" << deviceNames
               << " deviceTimeNs:" << deviceTimeNs
               << " encoding:" << encoding << "(" << encodingForStats
               << ") frameCount:" << frameCount
@@ -957,8 +931,8 @@
         if (mAudioAnalytics.mDeliverStatistics) {
             const auto [ result, str ] = sendToStatsd(AudioThreadDeviceUsageFields,
                 CONDITION(android::util::MEDIAMETRICS_AUDIOTHREADDEVICEUSAGE_REPORTED)
-                , isInput ? ENUM_EXTRACT(inputDeviceBits) : ENUM_EXTRACT(outputDeviceBits)
-                , isInput ? inputDeviceNames.c_str() : outputDeviceNames.c_str()
+                , ENUM_EXTRACT(deviceStatsd)
+                , deviceNames.c_str()
                 , deviceTimeNs
                 , ENUM_EXTRACT(encodingForStats)
                 , frameCount
@@ -974,6 +948,15 @@
         }
     } break;
     case TRACK: {
+        std::string outputDevicePairs;
+        mAudioAnalytics.mAnalyticsState->timeMachine().get(
+                key, AMEDIAMETRICS_PROP_OUTPUTDEVICES, &outputDevicePairs);
+
+        const auto [ outputDeviceStatsd, outputDevices ] =
+                stringutils::parseOutputDevicePairs(outputDevicePairs);
+        const std::string outputDeviceNames =
+                mAudioAnalytics.getDeviceNamesFromOutputDevices(outputDevices);
+
         std::string callerName;
         const bool clientCalled = mAudioAnalytics.mAnalyticsState->timeMachine().get(
                 key, AMEDIAMETRICS_PROP_CALLERNAME, &callerName) == OK;
@@ -1041,7 +1024,7 @@
 
         LOG(LOG_LEVEL) << "key:" << key
               << " id:" << id
-              << " outputDevices:" << outputDevices << "(" << outputDeviceBits
+              << " outputDevices:" << outputDevices << "(" << outputDeviceStatsd
               << ") outputDeviceNames:" << outputDeviceNames
               << " deviceTimeNs:" << deviceTimeNs
               << " encoding:" << encoding << "(" << encodingForStats
@@ -1068,7 +1051,7 @@
                 && mAudioAnalytics.mDeliverStatistics) {
             const auto [ result, str ] = sendToStatsd(AudioTrackDeviceUsageFields,
                     CONDITION(android::util::MEDIAMETRICS_AUDIOTRACKDEVICEUSAGE_REPORTED)
-                    , ENUM_EXTRACT(outputDeviceBits)
+                    , ENUM_EXTRACT(outputDeviceStatsd)
                     , outputDeviceNames.c_str()
                     , deviceTimeNs
                     , ENUM_EXTRACT(encodingForStats)
@@ -1095,11 +1078,6 @@
         }
         } break;
     }
-
-    // Report this as needed.
-    if (isBluetooth) {
-        // report this for Bluetooth
-    }
 }
 
 // DeviceConnection helper class.
@@ -1732,4 +1710,22 @@
     return { s, n };
 }
 
+// This method currently suppresses the name.
+std::string AudioAnalytics::getDeviceNamesFromOutputDevices(std::string_view devices) const {
+    std::string deviceNames;
+    if (stringutils::hasBluetoothOutputDevice(devices)) {
+        deviceNames = SUPPRESSED;
+#if 0   // TODO(b/161554630) sanitize name
+        mAudioAnalytics.mAnalyticsState->timeMachine().get(
+            "audio.device.bt_a2dp", AMEDIAMETRICS_PROP_NAME, &deviceNames);
+        // Remove | if present
+        stringutils::replace(deviceNames, "|", '?');
+        if (deviceNames.size() > STATSD_DEVICE_NAME_MAX_LENGTH) {
+            deviceNames.resize(STATSD_DEVICE_NAME_MAX_LENGTH); // truncate
+        }
+#endif
+    }
+    return deviceNames;
+}
+
 } // namespace android::mediametrics
diff --git a/services/mediametrics/StringUtils.cpp b/services/mediametrics/StringUtils.cpp
index 50525bc..d1c7a18 100644
--- a/services/mediametrics/StringUtils.cpp
+++ b/services/mediametrics/StringUtils.cpp
@@ -20,6 +20,8 @@
 
 #include "StringUtils.h"
 
+#include "AudioTypes.h"
+
 namespace android::mediametrics::stringutils {
 
 std::string tokenizer(std::string::const_iterator& it,
@@ -99,4 +101,30 @@
     return replaced;
 }
 
+template <types::AudioEnumCategory CATEGORY>
+std::pair<std::string /* external statsd */, std::string /* internal */>
+parseDevicePairs(const std::string& devicePairs) {
+    std::pair<std::string, std::string> result{};
+    const auto devaddrvec = stringutils::getDeviceAddressPairs(devicePairs);
+    for (const auto& [device, addr] : devaddrvec) { // addr ignored for now.
+        if (!result.second.empty()) {
+            result.second.append("|"); // delimit devices with '|'.
+            result.first.append("|");
+        }
+        result.second.append(device);
+        result.first.append(types::lookup<CATEGORY, std::string>(device));
+    }
+    return result;
+}
+
+std::pair<std::string /* external statsd */, std::string /* internal */>
+parseOutputDevicePairs(const std::string& devicePairs) {
+    return parseDevicePairs<types::OUTPUT_DEVICE>(devicePairs);
+}
+
+std::pair<std::string /* external statsd */, std::string /* internal */>
+parseInputDevicePairs(const std::string& devicePairs) {
+    return parseDevicePairs<types::INPUT_DEVICE>(devicePairs);
+}
+
 } // namespace android::mediametrics::stringutils
diff --git a/services/mediametrics/include/mediametricsservice/AudioAnalytics.h b/services/mediametrics/include/mediametricsservice/AudioAnalytics.h
index 7000ba8..82e928e 100644
--- a/services/mediametrics/include/mediametricsservice/AudioAnalytics.h
+++ b/services/mediametrics/include/mediametricsservice/AudioAnalytics.h
@@ -161,6 +161,13 @@
      */
     std::string getThreadFromTrack(const std::string& track) const;
 
+    /**
+     * return the device name, if present.
+     *
+     * This is currently enabled only for Bluetooth output devices.
+     */
+    std::string getDeviceNamesFromOutputDevices(std::string_view devices) const;
+
     const bool mDeliverStatistics;
 
     // Actions is individually locked
diff --git a/services/mediametrics/include/mediametricsservice/StringUtils.h b/services/mediametrics/include/mediametricsservice/StringUtils.h
index a91d37b..78c25ff 100644
--- a/services/mediametrics/include/mediametricsservice/StringUtils.h
+++ b/services/mediametrics/include/mediametricsservice/StringUtils.h
@@ -217,4 +217,14 @@
     return { key, "" };
 }
 
+std::pair<std::string /* external statsd */, std::string /* internal */>
+parseOutputDevicePairs(const std::string& outputDevicePairs);
+
+std::pair<std::string /* external statsd */, std::string /* internal */>
+parseInputDevicePairs(const std::string& inputDevicePairs);
+
+inline bool hasBluetoothOutputDevice(std::string_view devices) {
+    return devices.find("AUDIO_DEVICE_OUT_BLUETOOTH") != std::string::npos;
+}
+
 } // namespace android::mediametrics::stringutils