Merge "Solve the issue that the injection camera cannot be injected when the stream configuration is completed and the camera device is active"
diff --git a/drm/drmserver/drmserver.rc b/drm/drmserver/drmserver.rc
index de46fb9..eb176c1 100644
--- a/drm/drmserver/drmserver.rc
+++ b/drm/drmserver/drmserver.rc
@@ -1,5 +1,12 @@
 service drm /system/bin/drmserver
+    disabled
     class main
     user drm
     group drm system inet drmrpc readproc
     writepid /dev/cpuset/foreground/tasks
+
+on property:drm.service.enabled=true
+    start drm
+
+on property:drm.service.enabled=1
+    start drm
diff --git a/drm/libdrmframework/DrmManagerClientImpl.cpp b/drm/libdrmframework/DrmManagerClientImpl.cpp
index b0a441b..a2cac3f 100644
--- a/drm/libdrmframework/DrmManagerClientImpl.cpp
+++ b/drm/libdrmframework/DrmManagerClientImpl.cpp
@@ -52,25 +52,13 @@
 const sp<IDrmManagerService>& DrmManagerClientImpl::getDrmManagerService() {
     Mutex::Autolock lock(sMutex);
     if (NULL == sDrmManagerService.get()) {
-        char value[PROPERTY_VALUE_MAX];
-        if (property_get("drm.service.enabled", value, NULL) == 0) {
-            // Drm is undefined for this device
+        sp<IServiceManager> sm = defaultServiceManager();
+        sp<IBinder> binder = sm->getService(String16("drm.drmManager"));
+        if (binder == NULL) {
+            // Do NOT retry; IServiceManager already waits for ~5 seconds
+            // in getService if a service doesn't yet exist.
             return sDrmManagerService;
         }
-
-        sp<IServiceManager> sm = defaultServiceManager();
-        sp<IBinder> binder;
-        do {
-            binder = sm->getService(String16("drm.drmManager"));
-            if (binder != 0) {
-                break;
-            }
-            ALOGW("DrmManagerService not published, waiting...");
-            struct timespec reqt;
-            reqt.tv_sec  = 0;
-            reqt.tv_nsec = 500000000; //0.5 sec
-            nanosleep(&reqt, NULL);
-        } while (true);
         if (NULL == sDeathNotifier.get()) {
             sDeathNotifier = new DeathNotifier();
         }
diff --git a/media/codec2/hidl/1.0/vts/functional/video/Android.bp b/media/codec2/hidl/1.0/vts/functional/video/Android.bp
index f211ecf..ecc4f9d 100644
--- a/media/codec2/hidl/1.0/vts/functional/video/Android.bp
+++ b/media/codec2/hidl/1.0/vts/functional/video/Android.bp
@@ -36,6 +36,8 @@
         "libgui",
         "libutils",
         "libcrypto",
+        "libdatasource",
+        "libui",
     ],
     data: [":media_c2_v1_video_decode_res"],
     test_config: "VtsHalMediaC2V1_0TargetVideoDecTest.xml",
diff --git a/media/codec2/hidl/1.0/vts/functional/video/VtsHalMediaC2V1_0TargetVideoDecTest.cpp b/media/codec2/hidl/1.0/vts/functional/video/VtsHalMediaC2V1_0TargetVideoDecTest.cpp
index c331d0b..4c90eee 100644
--- a/media/codec2/hidl/1.0/vts/functional/video/VtsHalMediaC2V1_0TargetVideoDecTest.cpp
+++ b/media/codec2/hidl/1.0/vts/functional/video/VtsHalMediaC2V1_0TargetVideoDecTest.cpp
@@ -33,11 +33,18 @@
 #include <gui/IConsumerListener.h>
 #include <gui/IProducerListener.h>
 #include <system/window.h>
+#include <gui/GLConsumer.h>
+#include <gui/Surface.h>
+#include <gui/SurfaceComposerClient.h>
 
 #include "media_c2_hidl_test_common.h"
 #include "media_c2_video_hidl_test_common.h"
 
-using DecodeTestParameters = std::tuple<std::string, std::string, uint32_t, bool>;
+constexpr size_t kSmoothnessFactor = 4;
+constexpr size_t kRenderingDepth = 3;
+enum surfaceMode_t { NO_SURFACE, NULL_SURFACE, SURFACE };
+
+using DecodeTestParameters = std::tuple<std::string, std::string, uint32_t, bool, surfaceMode_t>;
 static std::vector<DecodeTestParameters> gDecodeTestParameters;
 
 using CsdFlushTestParameters = std::tuple<std::string, std::string, bool>;
@@ -392,6 +399,36 @@
     return false;
 }
 
+void setOutputSurface(const std::shared_ptr<android::Codec2Client::Component>& component,
+                      surfaceMode_t surfMode) {
+    using namespace android;
+    sp<IGraphicBufferProducer> producer = nullptr;
+    static std::atomic_uint32_t surfaceGeneration{0};
+    uint32_t generation =
+            (getpid() << 10) |
+            ((surfaceGeneration.fetch_add(1, std::memory_order_relaxed) + 1) & ((1 << 10) - 1));
+    int32_t maxDequeueBuffers = kSmoothnessFactor + kRenderingDepth;
+    if (surfMode == SURFACE) {
+        sp<IGraphicBufferConsumer> consumer = nullptr;
+        BufferQueue::createBufferQueue(&producer, &consumer);
+        ASSERT_NE(producer, nullptr) << "createBufferQueue returned invalid producer";
+        ASSERT_NE(consumer, nullptr) << "createBufferQueue returned invalid consumer";
+
+        sp<GLConsumer> texture =
+                new GLConsumer(consumer, 0 /* tex */, GLConsumer::TEXTURE_EXTERNAL,
+                               true /* useFenceSync */, false /* isControlledByApp */);
+
+        sp<ANativeWindow> gSurface = new Surface(producer);
+        ASSERT_NE(gSurface, nullptr) << "getSurface failed";
+
+        producer->setGenerationNumber(generation);
+    }
+
+    c2_status_t err = component->setOutputSurface(C2BlockPool::BASIC_GRAPHIC, producer, generation,
+                                                  maxDequeueBuffers);
+    ASSERT_EQ(err, C2_OK) << "setOutputSurface failed";
+}
+
 void decodeNFrames(const std::shared_ptr<android::Codec2Client::Component>& component,
                    std::mutex& queueLock, std::condition_variable& queueCondition,
                    std::list<std::unique_ptr<C2Work>>& workQueue,
@@ -550,6 +587,7 @@
     if (mDisableTest) GTEST_SKIP() << "Test is disabled";
 
     bool signalEOS = std::get<3>(GetParam());
+    surfaceMode_t surfMode = std::get<4>(GetParam());
     mTimestampDevTest = true;
 
     android::Vector<FrameInfo> Info;
@@ -594,6 +632,10 @@
         refChksum.close();
     }
 
+    if (surfMode != NO_SURFACE) {
+        ASSERT_NO_FATAL_FAILURE(setOutputSurface(mComponent, surfMode));
+    }
+
     ASSERT_NO_FATAL_FAILURE(decodeNFrames(mComponent, mQueueLock, mQueueCondition, mWorkQueue,
                                           mFlushedIndices, mLinearPool, eleStream, &Info, 0,
                                           (int)Info.size(), signalEOS));
@@ -1061,18 +1103,23 @@
     parseArgs(argc, argv);
     gTestParameters = getTestParameters(C2Component::DOMAIN_VIDEO, C2Component::KIND_DECODER);
     for (auto params : gTestParameters) {
+        // mOutputBufferQueue->configure() crashes when surface is NULL
+        std::initializer_list<surfaceMode_t> surfaceMode = {
+                surfaceMode_t::NO_SURFACE, surfaceMode_t::NULL_SURFACE, surfaceMode_t::SURFACE};
+        for (surfaceMode_t mode : surfaceMode) {
+            gDecodeTestParameters.push_back(
+                    std::make_tuple(std::get<0>(params), std::get<1>(params), 0, false, mode));
+            gDecodeTestParameters.push_back(
+                    std::make_tuple(std::get<0>(params), std::get<1>(params), 0, true, mode));
+        }
         gDecodeTestParameters.push_back(
-                std::make_tuple(std::get<0>(params), std::get<1>(params), 0, false));
+                std::make_tuple(std::get<0>(params), std::get<1>(params), 1, false, NO_SURFACE));
         gDecodeTestParameters.push_back(
-                std::make_tuple(std::get<0>(params), std::get<1>(params), 0, true));
+                std::make_tuple(std::get<0>(params), std::get<1>(params), 1, true, NO_SURFACE));
         gDecodeTestParameters.push_back(
-                std::make_tuple(std::get<0>(params), std::get<1>(params), 1, false));
+                std::make_tuple(std::get<0>(params), std::get<1>(params), 2, false, NO_SURFACE));
         gDecodeTestParameters.push_back(
-                std::make_tuple(std::get<0>(params), std::get<1>(params), 1, true));
-        gDecodeTestParameters.push_back(
-                std::make_tuple(std::get<0>(params), std::get<1>(params), 2, false));
-        gDecodeTestParameters.push_back(
-                std::make_tuple(std::get<0>(params), std::get<1>(params), 2, true));
+                std::make_tuple(std::get<0>(params), std::get<1>(params), 2, true, NO_SURFACE));
 
         gCsdFlushTestParameters.push_back(
                 std::make_tuple(std::get<0>(params), std::get<1>(params), true));
diff --git a/media/codec2/hidl/client/output.cpp b/media/codec2/hidl/client/output.cpp
index 8cd4934..de34c24 100644
--- a/media/codec2/hidl/client/output.cpp
+++ b/media/codec2/hidl/client/output.cpp
@@ -181,7 +181,7 @@
                                   int maxDequeueBufferCount,
                                   std::shared_ptr<V1_2::SurfaceSyncObj> *syncObj) {
     uint64_t consumerUsage = 0;
-    if (igbp->getConsumerUsage(&consumerUsage) != OK) {
+    if (igbp && igbp->getConsumerUsage(&consumerUsage) != OK) {
         ALOGW("failed to get consumer usage");
     }
 
@@ -254,6 +254,9 @@
         mBqId = bqId;
         mOwner = std::make_shared<int>(0);
         mMaxDequeueBufferCount = maxDequeueBufferCount;
+        if (igbp == nullptr) {
+            return false;
+        }
         for (int i = 0; i < BufferQueueDefs::NUM_BUFFER_SLOTS; ++i) {
             if (mBqId == 0 || !mBuffers[i]) {
                 continue;
diff --git a/media/codec2/sfplugin/Codec2Buffer.cpp b/media/codec2/sfplugin/Codec2Buffer.cpp
index 691bab1..4070478 100644
--- a/media/codec2/sfplugin/Codec2Buffer.cpp
+++ b/media/codec2/sfplugin/Codec2Buffer.cpp
@@ -491,7 +491,7 @@
                         * align(mHeight, 64) / plane.rowSampling;
             }
 
-            if ((maxPtr - minPtr + 1) <= planeSize) {
+            if (minPtr == mView.data()[0] && (maxPtr - minPtr + 1) <= planeSize) {
                 // FIXME: this is risky as reading/writing data out of bound results
                 //        in an undefined behavior, but gralloc does assume a
                 //        contiguous mapping
diff --git a/media/libaaudio/include/aaudio/AAudio.h b/media/libaaudio/include/aaudio/AAudio.h
index 4096e05..fc86001 100644
--- a/media/libaaudio/include/aaudio/AAudio.h
+++ b/media/libaaudio/include/aaudio/AAudio.h
@@ -565,6 +565,145 @@
 };
 typedef int32_t aaudio_session_id_t;
 
+/**
+ * Defines the audio channel mask.
+ * Channel masks are used to describe the samples and their
+ * arrangement in the audio frame. They are also used in the endpoint
+ * (e.g. a USB audio interface, a DAC connected to headphones) to
+ * specify allowable configurations of a particular device.
+ *
+ * Added in API level 32.
+ */
+enum {
+    /**
+     * Invalid channel mask
+     */
+    AAUDIO_CHANNEL_INVALID = -1,
+
+    /**
+     * Output audio channel mask
+     */
+    AAUDIO_CHANNEL_FRONT_LEFT = 1 << 0,
+    AAUDIO_CHANNEL_FRONT_RIGHT = 1 << 1,
+    AAUDIO_CHANNEL_FRONT_CENTER = 1 << 2,
+    AAUDIO_CHANNEL_LOW_FREQUENCY = 1 << 3,
+    AAUDIO_CHANNEL_BACK_LEFT = 1 << 4,
+    AAUDIO_CHANNEL_BACK_RIGHT = 1 << 5,
+    AAUDIO_CHANNEL_FRONT_LEFT_OF_CENTER = 1 << 6,
+    AAUDIO_CHANNEL_FRONT_RIGHT_OF_CENTER = 1 << 7,
+    AAUDIO_CHANNEL_BACK_CENTER = 1 << 8,
+    AAUDIO_CHANNEL_SIDE_LEFT = 1 << 9,
+    AAUDIO_CHANNEL_SIDE_RIGHT = 1 << 10,
+    AAUDIO_CHANNEL_TOP_CENTER = 1 << 11,
+    AAUDIO_CHANNEL_TOP_FRONT_LEFT = 1 << 12,
+    AAUDIO_CHANNEL_TOP_FRONT_CENTER = 1 << 13,
+    AAUDIO_CHANNEL_TOP_FRONT_RIGHT = 1 << 14,
+    AAUDIO_CHANNEL_TOP_BACK_LEFT = 1 << 15,
+    AAUDIO_CHANNEL_TOP_BACK_CENTER = 1 << 16,
+    AAUDIO_CHANNEL_TOP_BACK_RIGHT = 1 << 17,
+    AAUDIO_CHANNEL_TOP_SIDE_LEFT = 1 << 18,
+    AAUDIO_CHANNEL_TOP_SIDE_RIGHT = 1 << 19,
+    AAUDIO_CHANNEL_BOTTOM_FRONT_LEFT = 1 << 20,
+    AAUDIO_CHANNEL_BOTTOM_FRONT_CENTER = 1 << 21,
+    AAUDIO_CHANNEL_BOTTOM_FRONT_RIGHT = 1 << 22,
+    AAUDIO_CHANNEL_LOW_FREQUENCY_2 = 1 << 23,
+    AAUDIO_CHANNEL_FRONT_WIDE_LEFT = 1 << 24,
+    AAUDIO_CHANNEL_FRONT_WIDE_RIGHT = 1 << 25,
+
+    AAUDIO_CHANNEL_MONO = AAUDIO_CHANNEL_FRONT_LEFT,
+    AAUDIO_CHANNEL_STEREO = AAUDIO_CHANNEL_FRONT_LEFT |
+                            AAUDIO_CHANNEL_FRONT_RIGHT,
+    AAUDIO_CHANNEL_2POINT1 = AAUDIO_CHANNEL_FRONT_LEFT |
+                             AAUDIO_CHANNEL_FRONT_RIGHT |
+                             AAUDIO_CHANNEL_LOW_FREQUENCY,
+    AAUDIO_CHANNEL_TRI = AAUDIO_CHANNEL_FRONT_LEFT |
+                         AAUDIO_CHANNEL_FRONT_RIGHT |
+                         AAUDIO_CHANNEL_FRONT_CENTER,
+    AAUDIO_CHANNEL_TRI_BACK = AAUDIO_CHANNEL_FRONT_LEFT |
+                              AAUDIO_CHANNEL_FRONT_RIGHT |
+                              AAUDIO_CHANNEL_BACK_CENTER,
+    AAUDIO_CHANNEL_3POINT1 = AAUDIO_CHANNEL_FRONT_LEFT |
+                             AAUDIO_CHANNEL_FRONT_RIGHT |
+                             AAUDIO_CHANNEL_FRONT_CENTER |
+                             AAUDIO_CHANNEL_LOW_FREQUENCY,
+    AAUDIO_CHANNEL_2POINT0POINT2 = AAUDIO_CHANNEL_FRONT_LEFT |
+                                   AAUDIO_CHANNEL_FRONT_RIGHT |
+                                   AAUDIO_CHANNEL_TOP_SIDE_LEFT |
+                                   AAUDIO_CHANNEL_TOP_SIDE_RIGHT,
+    AAUDIO_CHANNEL_2POINT1POINT2 = AAUDIO_CHANNEL_2POINT0POINT2 |
+                                   AAUDIO_CHANNEL_LOW_FREQUENCY,
+    AAUDIO_CHANNEL_3POINT0POINT2 = AAUDIO_CHANNEL_FRONT_LEFT |
+                                   AAUDIO_CHANNEL_FRONT_RIGHT |
+                                   AAUDIO_CHANNEL_FRONT_CENTER |
+                                   AAUDIO_CHANNEL_TOP_SIDE_LEFT |
+                                   AAUDIO_CHANNEL_TOP_SIDE_RIGHT,
+    AAUDIO_CHANNEL_3POINT1POINT2 = AAUDIO_CHANNEL_3POINT0POINT2 |
+                                   AAUDIO_CHANNEL_LOW_FREQUENCY,
+    AAUDIO_CHANNEL_QUAD = AAUDIO_CHANNEL_FRONT_LEFT |
+                          AAUDIO_CHANNEL_FRONT_RIGHT |
+                          AAUDIO_CHANNEL_BACK_LEFT |
+                          AAUDIO_CHANNEL_BACK_RIGHT,
+    AAUDIO_CHANNEL_QUAD_SIDE = AAUDIO_CHANNEL_FRONT_LEFT |
+                               AAUDIO_CHANNEL_FRONT_RIGHT |
+                               AAUDIO_CHANNEL_SIDE_LEFT |
+                               AAUDIO_CHANNEL_SIDE_RIGHT,
+    AAUDIO_CHANNEL_SURROUND = AAUDIO_CHANNEL_FRONT_LEFT |
+                              AAUDIO_CHANNEL_FRONT_RIGHT |
+                              AAUDIO_CHANNEL_FRONT_CENTER |
+                              AAUDIO_CHANNEL_BACK_CENTER,
+    AAUDIO_CHANNEL_PENTA = AAUDIO_CHANNEL_QUAD |
+                           AAUDIO_CHANNEL_FRONT_CENTER,
+    // aka 5POINT1_BACK
+    AAUDIO_CHANNEL_5POINT1 = AAUDIO_CHANNEL_FRONT_LEFT |
+                             AAUDIO_CHANNEL_FRONT_RIGHT |
+                             AAUDIO_CHANNEL_FRONT_CENTER |
+                             AAUDIO_CHANNEL_LOW_FREQUENCY |
+                             AAUDIO_CHANNEL_BACK_LEFT |
+                             AAUDIO_CHANNEL_BACK_RIGHT,
+    AAUDIO_CHANNEL_5POINT1_SIDE = AAUDIO_CHANNEL_FRONT_LEFT |
+                                  AAUDIO_CHANNEL_FRONT_RIGHT |
+                                  AAUDIO_CHANNEL_FRONT_CENTER |
+                                  AAUDIO_CHANNEL_LOW_FREQUENCY |
+                                  AAUDIO_CHANNEL_SIDE_LEFT |
+                                  AAUDIO_CHANNEL_SIDE_RIGHT,
+    AAUDIO_CHANNEL_6POINT1 = AAUDIO_CHANNEL_FRONT_LEFT |
+                             AAUDIO_CHANNEL_FRONT_RIGHT |
+                             AAUDIO_CHANNEL_FRONT_CENTER |
+                             AAUDIO_CHANNEL_LOW_FREQUENCY |
+                             AAUDIO_CHANNEL_BACK_LEFT |
+                             AAUDIO_CHANNEL_BACK_RIGHT |
+                             AAUDIO_CHANNEL_BACK_CENTER,
+    AAUDIO_CHANNEL_7POINT1 = AAUDIO_CHANNEL_5POINT1 |
+                             AAUDIO_CHANNEL_SIDE_LEFT |
+                             AAUDIO_CHANNEL_SIDE_RIGHT,
+    AAUDIO_CHANNEL_5POINT1POINT2 = AAUDIO_CHANNEL_5POINT1 |
+                                   AAUDIO_CHANNEL_TOP_SIDE_LEFT |
+                                   AAUDIO_CHANNEL_TOP_SIDE_RIGHT,
+    AAUDIO_CHANNEL_5POINT1POINT4 = AAUDIO_CHANNEL_5POINT1 |
+                                   AAUDIO_CHANNEL_TOP_FRONT_LEFT |
+                                   AAUDIO_CHANNEL_TOP_FRONT_RIGHT |
+                                   AAUDIO_CHANNEL_TOP_BACK_LEFT |
+                                   AAUDIO_CHANNEL_TOP_BACK_RIGHT,
+    AAUDIO_CHANNEL_7POINT1POINT2 = AAUDIO_CHANNEL_7POINT1 |
+                                   AAUDIO_CHANNEL_TOP_SIDE_LEFT |
+                                   AAUDIO_CHANNEL_TOP_SIDE_RIGHT,
+    AAUDIO_CHANNEL_7POINT1POINT4 = AAUDIO_CHANNEL_7POINT1 |
+                                   AAUDIO_CHANNEL_TOP_FRONT_LEFT |
+                                   AAUDIO_CHANNEL_TOP_FRONT_RIGHT |
+                                   AAUDIO_CHANNEL_TOP_BACK_LEFT |
+                                   AAUDIO_CHANNEL_TOP_BACK_RIGHT,
+    AAUDIO_CHANNEL_9POINT1POINT4 = AAUDIO_CHANNEL_7POINT1POINT4 |
+                                   AAUDIO_CHANNEL_FRONT_WIDE_LEFT |
+                                   AAUDIO_CHANNEL_FRONT_WIDE_RIGHT,
+    AAUDIO_CHANNEL_9POINT1POINT6 = AAUDIO_CHANNEL_9POINT1POINT4 |
+                                   AAUDIO_CHANNEL_TOP_SIDE_LEFT |
+                                   AAUDIO_CHANNEL_TOP_SIDE_RIGHT,
+
+    AAUDIO_CHANNEL_FRONT_BACK = AAUDIO_CHANNEL_FRONT_CENTER |
+                                AAUDIO_CHANNEL_BACK_CENTER,
+};
+typedef uint32_t aaudio_channel_mask_t;
+
 typedef struct AAudioStreamStruct         AAudioStream;
 typedef struct AAudioStreamBuilderStruct  AAudioStreamBuilder;
 
@@ -702,6 +841,11 @@
  * If an exact value is specified then an opened stream will use that value.
  * If a stream cannot be opened with the specified value then the open will fail.
  *
+ * As the channel count provided here may be different from the corresponding channel count
+ * of channel mask used in {@link AAudioStreamBuilder_setChannelMask}, the last called function
+ * will be respected if both this function and {@link AAudioStreamBuilder_setChannelMask} are
+ * called.
+ *
  * Available since API level 26.
  *
  * @param builder reference provided by AAudio_createStreamBuilder()
@@ -717,6 +861,8 @@
  *
  * @param builder reference provided by AAudio_createStreamBuilder()
  * @param samplesPerFrame Number of samples in a frame.
+ *
+ * @deprecated use {@link AAudioStreamBuilder_setChannelCount}
  */
 AAUDIO_API void AAudioStreamBuilder_setSamplesPerFrame(AAudioStreamBuilder* builder,
                                                        int32_t samplesPerFrame) __INTRODUCED_IN(26);
@@ -1139,6 +1285,32 @@
 AAUDIO_API aaudio_result_t  AAudioStreamBuilder_delete(AAudioStreamBuilder* builder)
     __INTRODUCED_IN(26);
 
+/**
+ * Set audio channel mask for the stream.
+ *
+ * The default, if you do not call this function, is {@link #AAUDIO_UNSPECIFIED}.
+ * If both channel mask and count are not set, then stereo will then be chosen when the
+ * stream is opened.
+ * After opening a stream with an unspecified value, the application must query for the
+ * actual value, which may vary by device.
+ *
+ * If an exact value is specified then an opened stream will use that value.
+ * If a stream cannot be opened with the specified value then the open will fail.
+ *
+ * As the corresponding channel count of provided channel mask here may be different
+ * from the channel count used in {@link AAudioStreamBuilder_setChannelCount} or
+ * {@link AAudioStreamBuilder_setSamplesPerFrame}, the last called function will be
+ * respected if this function and {@link AAudioStreamBuilder_setChannelCount} or
+ * {@link AAudioStreamBuilder_setSamplesPerFrame} are called.
+ *
+ * Available since API level 32.
+ *
+ * @param builder reference provided by AAudio_createStreamBuilder()
+ * @param channelMask Audio channel mask desired.
+ */
+AAUDIO_API void AAudioStreamBuilder_setChannelMask(AAudioStreamBuilder* builder,
+        aaudio_channel_mask_t channelMask) __INTRODUCED_IN(32);
+
 // ============================================================
 // Stream Control
 // ============================================================
@@ -1655,6 +1827,18 @@
 AAUDIO_API bool AAudioStream_isPrivacySensitive(AAudioStream* stream)
         __INTRODUCED_IN(30);
 
+/**
+ * Return the channel mask for the stream. This will be the mask set using
+ * {@link #AAudioStreamBuilder_setChannelMask}, or {@link #AAUDIO_UNSPECIFIED} otherwise.
+ *
+ * Available since API level 32.
+ *
+ * @param stream reference provided by AAudioStreamBuilder_openStream()
+ * @return actual channel mask
+ */
+AAUDIO_API aaudio_channel_mask_t AAudioStream_getChannelMask(AAudioStream* stream)
+        __INTRODUCED_IN(32);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/media/libaaudio/src/binding/AAudioStreamConfiguration.cpp b/media/libaaudio/src/binding/AAudioStreamConfiguration.cpp
index b8115e3..cf76225 100644
--- a/media/libaaudio/src/binding/AAudioStreamConfiguration.cpp
+++ b/media/libaaudio/src/binding/AAudioStreamConfiguration.cpp
@@ -32,7 +32,7 @@
 using android::media::AudioFormatDescription;
 
 AAudioStreamConfiguration::AAudioStreamConfiguration(const StreamParameters& parcelable) {
-    setSamplesPerFrame(parcelable.samplesPerFrame);
+    setChannelMask(parcelable.channelMask);
     setSampleRate(parcelable.sampleRate);
     setDeviceId(parcelable.deviceId);
     static_assert(sizeof(aaudio_sharing_mode_t) == sizeof(parcelable.sharingMode));
@@ -66,7 +66,7 @@
 
 StreamParameters AAudioStreamConfiguration::parcelable() const {
     StreamParameters result;
-    result.samplesPerFrame = getSamplesPerFrame();
+    result.channelMask = getChannelMask();
     result.sampleRate = getSampleRate();
     result.deviceId = getDeviceId();
     static_assert(sizeof(aaudio_sharing_mode_t) == sizeof(result.sharingMode));
diff --git a/media/libaaudio/src/binding/aidl/aaudio/StreamParameters.aidl b/media/libaaudio/src/binding/aidl/aaudio/StreamParameters.aidl
index f8c0684..3b274f2 100644
--- a/media/libaaudio/src/binding/aidl/aaudio/StreamParameters.aidl
+++ b/media/libaaudio/src/binding/aidl/aaudio/StreamParameters.aidl
@@ -19,7 +19,7 @@
 import android.media.AudioFormatDescription;
 
 parcelable StreamParameters {
-    int                                       samplesPerFrame;  //      = AAUDIO_UNSPECIFIED;
+    int                                       channelMask;  //          = AAUDIO_UNSPECIFIED;
     int                                       sampleRate;  //           = AAUDIO_UNSPECIFIED;
     int                                       deviceId;  //             = AAUDIO_UNSPECIFIED;
     int /* aaudio_sharing_mode_t */           sharingMode;  //          = AAUDIO_SHARING_MODE_SHARED;
diff --git a/media/libaaudio/src/client/AudioStreamInternal.cpp b/media/libaaudio/src/client/AudioStreamInternal.cpp
index e584425..91f3004 100644
--- a/media/libaaudio/src/client/AudioStreamInternal.cpp
+++ b/media/libaaudio/src/client/AudioStreamInternal.cpp
@@ -121,9 +121,9 @@
 
     request.getConfiguration().setDeviceId(getDeviceId());
     request.getConfiguration().setSampleRate(getSampleRate());
-    request.getConfiguration().setSamplesPerFrame(getSamplesPerFrame());
     request.getConfiguration().setDirection(getDirection());
     request.getConfiguration().setSharingMode(getSharingMode());
+    request.getConfiguration().setChannelMask(getChannelMask());
 
     request.getConfiguration().setUsage(getUsage());
     request.getConfiguration().setContentType(getContentType());
@@ -136,7 +136,8 @@
 
     mServiceStreamHandle = mServiceInterface.openStream(request, configurationOutput);
     if (mServiceStreamHandle < 0
-            && request.getConfiguration().getSamplesPerFrame() == 1 // mono?
+            && (request.getConfiguration().getSamplesPerFrame() == 1
+                    || request.getConfiguration().getChannelMask() == AAUDIO_CHANNEL_MONO)
             && getDirection() == AAUDIO_DIRECTION_OUTPUT
             && !isInService()) {
         // if that failed then try switching from mono to stereo if OUTPUT.
@@ -144,7 +145,7 @@
         // that writes to a stereo MMAP stream.
         ALOGD("%s() - openStream() returned %d, try switching from MONO to STEREO",
               __func__, mServiceStreamHandle);
-        request.getConfiguration().setSamplesPerFrame(2); // stereo
+        request.getConfiguration().setChannelMask(AAUDIO_CHANNEL_STEREO);
         mServiceStreamHandle = mServiceInterface.openStream(request, configurationOutput);
     }
     if (mServiceStreamHandle < 0) {
@@ -169,9 +170,10 @@
         goto error;
     }
     // Save results of the open.
-    if (getSamplesPerFrame() == AAUDIO_UNSPECIFIED) {
-        setSamplesPerFrame(configurationOutput.getSamplesPerFrame());
+    if (getChannelMask() == AAUDIO_UNSPECIFIED) {
+        setChannelMask(configurationOutput.getChannelMask());
     }
+
     mDeviceChannelCount = configurationOutput.getSamplesPerFrame();
 
     setSampleRate(configurationOutput.getSampleRate());
diff --git a/media/libaaudio/src/core/AAudioAudio.cpp b/media/libaaudio/src/core/AAudioAudio.cpp
index d103aca..02e7f5f 100644
--- a/media/libaaudio/src/core/AAudioAudio.cpp
+++ b/media/libaaudio/src/core/AAudioAudio.cpp
@@ -128,7 +128,8 @@
                                                        int32_t samplesPerFrame)
 {
     AudioStreamBuilder *streamBuilder = convertAAudioBuilderToStreamBuilder(builder);
-    streamBuilder->setSamplesPerFrame(samplesPerFrame);
+    const aaudio_channel_mask_t channelMask = AAudioConvert_channelCountToMask(samplesPerFrame);
+    streamBuilder->setChannelMask(channelMask);
 }
 
 AAUDIO_API void AAudioStreamBuilder_setDirection(AAudioStreamBuilder* builder,
@@ -223,6 +224,13 @@
     streamBuilder->setFramesPerDataCallback(frames);
 }
 
+AAUDIO_API void AAudioStreamBuilder_setChannelMask(AAudioStreamBuilder* builder,
+                                                   aaudio_channel_mask_t channelMask)
+{
+    AudioStreamBuilder *streamBuilder = convertAAudioBuilderToStreamBuilder(builder);
+    streamBuilder->setChannelMask(channelMask);
+}
+
 AAUDIO_API aaudio_result_t  AAudioStreamBuilder_openStream(AAudioStreamBuilder* builder,
                                                      AAudioStream** streamPtr)
 {
@@ -562,3 +570,11 @@
     AudioStream *audioStream = convertAAudioStreamToAudioStream(stream);
     return audioStream->isPrivacySensitive();
 }
+
+AAUDIO_API aaudio_channel_mask_t AAudioStream_getChannelMask(AAudioStream* stream)
+{
+    AudioStream *audioStream = convertAAudioStreamToAudioStream(stream);
+    const aaudio_channel_mask_t channelMask = audioStream->getChannelMask();
+    // Do not return channel index masks as they are not public.
+    return AAudio_isChannelIndexMask(channelMask) ? AAUDIO_UNSPECIFIED : channelMask;
+}
diff --git a/media/libaaudio/src/core/AAudioStreamParameters.cpp b/media/libaaudio/src/core/AAudioStreamParameters.cpp
index 4d84474..84133f4 100644
--- a/media/libaaudio/src/core/AAudioStreamParameters.cpp
+++ b/media/libaaudio/src/core/AAudioStreamParameters.cpp
@@ -46,6 +46,7 @@
     mIsPrivacySensitive   = other.mIsPrivacySensitive;
     mOpPackageName        = other.mOpPackageName;
     mAttributionTag       = other.mAttributionTag;
+    mChannelMask          = other.mChannelMask;
 }
 
 static aaudio_result_t isFormatValid(audio_format_t format) {
@@ -184,7 +185,94 @@
             // break;
     }
 
-    return AAUDIO_OK;
+    return validateChannelMask();
+}
+
+bool AAudioStreamParameters::validateChannelMask() const {
+    if (mChannelMask == AAUDIO_UNSPECIFIED) {
+        return AAUDIO_OK;
+    }
+
+    if (mChannelMask & AAUDIO_CHANNEL_BIT_INDEX) {
+        switch (mChannelMask) {
+            case AAUDIO_CHANNEL_INDEX_MASK_1:
+            case AAUDIO_CHANNEL_INDEX_MASK_2:
+            case AAUDIO_CHANNEL_INDEX_MASK_3:
+            case AAUDIO_CHANNEL_INDEX_MASK_4:
+            case AAUDIO_CHANNEL_INDEX_MASK_5:
+            case AAUDIO_CHANNEL_INDEX_MASK_6:
+            case AAUDIO_CHANNEL_INDEX_MASK_7:
+            case AAUDIO_CHANNEL_INDEX_MASK_8:
+            case AAUDIO_CHANNEL_INDEX_MASK_9:
+            case AAUDIO_CHANNEL_INDEX_MASK_10:
+            case AAUDIO_CHANNEL_INDEX_MASK_11:
+            case AAUDIO_CHANNEL_INDEX_MASK_12:
+            case AAUDIO_CHANNEL_INDEX_MASK_13:
+            case AAUDIO_CHANNEL_INDEX_MASK_14:
+            case AAUDIO_CHANNEL_INDEX_MASK_15:
+            case AAUDIO_CHANNEL_INDEX_MASK_16:
+            case AAUDIO_CHANNEL_INDEX_MASK_17:
+            case AAUDIO_CHANNEL_INDEX_MASK_18:
+            case AAUDIO_CHANNEL_INDEX_MASK_19:
+            case AAUDIO_CHANNEL_INDEX_MASK_20:
+            case AAUDIO_CHANNEL_INDEX_MASK_21:
+            case AAUDIO_CHANNEL_INDEX_MASK_22:
+            case AAUDIO_CHANNEL_INDEX_MASK_23:
+            case AAUDIO_CHANNEL_INDEX_MASK_24:
+                return AAUDIO_OK;
+            default:
+                ALOGD("Invalid channel index mask %#x", mChannelMask);
+                return AAUDIO_ERROR_ILLEGAL_ARGUMENT;
+        }
+    }
+
+    if (getDirection() == AAUDIO_DIRECTION_INPUT) {
+        switch (mChannelMask) {
+            case AAUDIO_CHANNEL_MONO:
+            case AAUDIO_CHANNEL_STEREO:
+            case AAUDIO_CHANNEL_FRONT_BACK:
+            case AAUDIO_CHANNEL_2POINT0POINT2:
+            case AAUDIO_CHANNEL_2POINT1POINT2:
+            case AAUDIO_CHANNEL_3POINT0POINT2:
+            case AAUDIO_CHANNEL_3POINT1POINT2:
+            case AAUDIO_CHANNEL_5POINT1:
+                return AAUDIO_OK;
+            default:
+                ALOGD("Invalid channel mask %#x, IN", mChannelMask);
+                return AAUDIO_ERROR_ILLEGAL_ARGUMENT;
+        }
+    } else {
+        switch (mChannelMask) {
+            case AAUDIO_CHANNEL_MONO:
+            case AAUDIO_CHANNEL_STEREO:
+            case AAUDIO_CHANNEL_2POINT1:
+            case AAUDIO_CHANNEL_TRI:
+            case AAUDIO_CHANNEL_TRI_BACK:
+            case AAUDIO_CHANNEL_3POINT1:
+            case AAUDIO_CHANNEL_2POINT0POINT2:
+            case AAUDIO_CHANNEL_2POINT1POINT2:
+            case AAUDIO_CHANNEL_3POINT0POINT2:
+            case AAUDIO_CHANNEL_3POINT1POINT2:
+            case AAUDIO_CHANNEL_QUAD:
+            case AAUDIO_CHANNEL_QUAD_SIDE:
+            case AAUDIO_CHANNEL_SURROUND:
+            case AAUDIO_CHANNEL_PENTA:
+            case AAUDIO_CHANNEL_5POINT1:
+            case AAUDIO_CHANNEL_5POINT1_SIDE:
+            case AAUDIO_CHANNEL_5POINT1POINT2:
+            case AAUDIO_CHANNEL_5POINT1POINT4:
+            case AAUDIO_CHANNEL_6POINT1:
+            case AAUDIO_CHANNEL_7POINT1:
+            case AAUDIO_CHANNEL_7POINT1POINT2:
+            case AAUDIO_CHANNEL_7POINT1POINT4:
+            case AAUDIO_CHANNEL_9POINT1POINT4:
+            case AAUDIO_CHANNEL_9POINT1POINT6:
+                return AAUDIO_OK;
+            default:
+                ALOGD("Invalid channel mask %#x. OUT", mChannelMask);
+                return AAUDIO_ERROR_ILLEGAL_ARGUMENT;
+        }
+    }
 }
 
 void AAudioStreamParameters::dump() const {
@@ -192,6 +280,7 @@
     ALOGD("mSessionId            = %6d", mSessionId);
     ALOGD("mSampleRate           = %6d", mSampleRate);
     ALOGD("mSamplesPerFrame      = %6d", mSamplesPerFrame);
+    ALOGD("mChannelMask          = %#x", mChannelMask);
     ALOGD("mSharingMode          = %6d", (int)mSharingMode);
     ALOGD("mAudioFormat          = %6d", (int)mAudioFormat);
     ALOGD("mDirection            = %6d", mDirection);
diff --git a/media/libaaudio/src/core/AAudioStreamParameters.h b/media/libaaudio/src/core/AAudioStreamParameters.h
index 0349ffc..7a6ed3e 100644
--- a/media/libaaudio/src/core/AAudioStreamParameters.h
+++ b/media/libaaudio/src/core/AAudioStreamParameters.h
@@ -49,13 +49,6 @@
         return mSamplesPerFrame;
     }
 
-    /**
-     * This is also known as channelCount.
-     */
-    void setSamplesPerFrame(int32_t samplesPerFrame) {
-        mSamplesPerFrame = samplesPerFrame;
-    }
-
     audio_format_t getFormat() const {
         return mAudioFormat;
     }
@@ -153,6 +146,15 @@
         mAttributionTag = attributionTag;
     }
 
+    aaudio_channel_mask_t getChannelMask() const {
+        return mChannelMask;
+    }
+
+    void setChannelMask(aaudio_channel_mask_t channelMask) {
+        mChannelMask = channelMask;
+        mSamplesPerFrame = AAudioConvert_channelMaskToCount(channelMask);
+    }
+
     /**
      * @return bytes per frame of getFormat()
      */
@@ -171,6 +173,8 @@
     void dump() const;
 
 private:
+    bool validateChannelMask() const;
+
     int32_t                         mSamplesPerFrame      = AAUDIO_UNSPECIFIED;
     int32_t                         mSampleRate           = AAUDIO_UNSPECIFIED;
     int32_t                         mDeviceId             = AAUDIO_UNSPECIFIED;
@@ -186,6 +190,7 @@
     bool                            mIsPrivacySensitive   = false;
     std::optional<std::string>      mOpPackageName        = {};
     std::optional<std::string>      mAttributionTag       = {};
+    aaudio_channel_mask_t           mChannelMask          = AAUDIO_UNSPECIFIED;
 };
 
 } /* namespace aaudio */
diff --git a/media/libaaudio/src/core/AudioStream.cpp b/media/libaaudio/src/core/AudioStream.cpp
index 09d9535..ffc3b9d 100644
--- a/media/libaaudio/src/core/AudioStream.cpp
+++ b/media/libaaudio/src/core/AudioStream.cpp
@@ -76,6 +76,7 @@
     // Copy parameters from the Builder because the Builder may be deleted after this call.
     // TODO AudioStream should be a subclass of AudioStreamParameters
     mSamplesPerFrame = builder.getSamplesPerFrame();
+    mChannelMask = builder.getChannelMask();
     mSampleRate = builder.getSampleRate();
     mDeviceId = builder.getDeviceId();
     mFormat = builder.getFormat();
diff --git a/media/libaaudio/src/core/AudioStream.h b/media/libaaudio/src/core/AudioStream.h
index 07d76cb..8bb9b19 100644
--- a/media/libaaudio/src/core/AudioStream.h
+++ b/media/libaaudio/src/core/AudioStream.h
@@ -270,7 +270,8 @@
     }
 
     /**
-     * This is only valid after setSamplesPerFrame() and setFormat() have been called.
+     * This is only valid after setChannelMask() and setFormat()
+     * have been called.
      */
     int32_t getBytesPerFrame() const {
         return mSamplesPerFrame * getBytesPerSample();
@@ -284,7 +285,7 @@
     }
 
     /**
-     * This is only valid after setSamplesPerFrame() and setDeviceFormat() have been called.
+     * This is only valid after setChannelMask() and setDeviceFormat() have been called.
      */
     int32_t getBytesPerDeviceFrame() const {
         return getSamplesPerFrame() * audio_bytes_per_sample(getDeviceFormat());
@@ -318,6 +319,15 @@
         return mFramesPerDataCallback;
     }
 
+    aaudio_channel_mask_t getChannelMask() const {
+        return mChannelMask;
+    }
+
+    void setChannelMask(aaudio_channel_mask_t channelMask) {
+        mChannelMask = channelMask;
+        mSamplesPerFrame = AAudioConvert_channelMaskToCount(channelMask);
+    }
+
     /**
      * @return true if data callback has been specified
      */
@@ -495,11 +505,6 @@
     }
 
     // This should not be called after the open() call.
-    void setSamplesPerFrame(int32_t samplesPerFrame) {
-        mSamplesPerFrame = samplesPerFrame;
-    }
-
-    // This should not be called after the open() call.
     void setFramesPerBurst(int32_t framesPerBurst) {
         mFramesPerBurst = framesPerBurst;
     }
@@ -633,6 +638,7 @@
 
     // These do not change after open().
     int32_t                     mSamplesPerFrame = AAUDIO_UNSPECIFIED;
+    aaudio_channel_mask_t       mChannelMask = AAUDIO_UNSPECIFIED;
     int32_t                     mSampleRate = AAUDIO_UNSPECIFIED;
     int32_t                     mDeviceId = AAUDIO_UNSPECIFIED;
     aaudio_sharing_mode_t       mSharingMode = AAUDIO_SHARING_MODE_SHARED;
diff --git a/media/libaaudio/src/core/AudioStreamBuilder.cpp b/media/libaaudio/src/core/AudioStreamBuilder.cpp
index a3e42e9..a8fd0d9 100644
--- a/media/libaaudio/src/core/AudioStreamBuilder.cpp
+++ b/media/libaaudio/src/core/AudioStreamBuilder.cpp
@@ -262,8 +262,8 @@
 
 void AudioStreamBuilder::logParameters() const {
     // This is very helpful for debugging in the future. Please leave it in.
-    ALOGI("rate   = %6d, channels  = %d, format   = %d, sharing = %s, dir = %s",
-          getSampleRate(), getSamplesPerFrame(), getFormat(),
+    ALOGI("rate   = %6d, channels  = %d, channelMask = %#x, format   = %d, sharing = %s, dir = %s",
+          getSampleRate(), getSamplesPerFrame(), getChannelMask(), getFormat(),
           AAudio_convertSharingModeToShortText(getSharingMode()),
           AAudio_convertDirectionToText(getDirection()));
     ALOGI("device = %6d, sessionId = %d, perfMode = %d, callback: %s with frames = %d",
diff --git a/media/libaaudio/src/legacy/AudioStreamRecord.cpp b/media/libaaudio/src/legacy/AudioStreamRecord.cpp
index 20b909a..12771cc 100644
--- a/media/libaaudio/src/legacy/AudioStreamRecord.cpp
+++ b/media/libaaudio/src/legacy/AudioStreamRecord.cpp
@@ -65,11 +65,8 @@
     const audio_session_t sessionId = AAudioConvert_aaudioToAndroidSessionId(requestedSessionId);
 
     // TODO Support UNSPECIFIED in AudioRecord. For now, use stereo if unspecified.
-    int32_t samplesPerFrame = (getSamplesPerFrame() == AAUDIO_UNSPECIFIED)
-                              ? 2 : getSamplesPerFrame();
-    audio_channel_mask_t channelMask = samplesPerFrame <= 2 ?
-                               audio_channel_in_mask_from_count(samplesPerFrame) :
-                               audio_channel_mask_for_index_assignment_from_count(samplesPerFrame);
+    audio_channel_mask_t channelMask =
+            AAudio_getChannelMaskForOpen(getChannelMask(), getSamplesPerFrame(), true /*isInput*/);
 
     size_t frameCount = (builder.getBufferCapacity() == AAUDIO_UNSPECIFIED) ? 0
                         : builder.getBufferCapacity();
@@ -115,7 +112,7 @@
     constexpr int32_t kMostLikelySampleRateForFast = 48000;
     if (getFormat() == AUDIO_FORMAT_PCM_FLOAT
             && perfMode == AAUDIO_PERFORMANCE_MODE_LOW_LATENCY
-            && (samplesPerFrame <= 2) // FAST only for mono and stereo
+            && (audio_channel_count_from_in_mask(channelMask) <= 2) // FAST only for mono and stereo
             && (getSampleRate() == kMostLikelySampleRateForFast
                 || getSampleRate() == AAUDIO_UNSPECIFIED)) {
         setDeviceFormat(AUDIO_FORMAT_PCM_16_BIT);
@@ -228,7 +225,9 @@
             .set(AMEDIAMETRICS_PROP_ENCODINGCLIENT, toString(requestedFormat).c_str()).record();
 
     // Get the actual values from the AudioRecord.
-    setSamplesPerFrame(mAudioRecord->channelCount());
+    setChannelMask(AAudioConvert_androidToAAudioChannelMask(
+            mAudioRecord->channelMask(), true /*isInput*/,
+            AAudio_isChannelIndexMask(getChannelMask())));
     setSampleRate(mAudioRecord->getSampleRate());
     setBufferCapacity(getBufferCapacityFromDevice());
     setFramesPerBurst(getFramesPerBurstFromDevice());
diff --git a/media/libaaudio/src/legacy/AudioStreamTrack.cpp b/media/libaaudio/src/legacy/AudioStreamTrack.cpp
index 62f583c..118c004 100644
--- a/media/libaaudio/src/legacy/AudioStreamTrack.cpp
+++ b/media/libaaudio/src/legacy/AudioStreamTrack.cpp
@@ -66,13 +66,8 @@
     const aaudio_session_id_t requestedSessionId = builder.getSessionId();
     const audio_session_t sessionId = AAudioConvert_aaudioToAndroidSessionId(requestedSessionId);
 
-    // Try to create an AudioTrack
-    // Use stereo if unspecified.
-    int32_t samplesPerFrame = (getSamplesPerFrame() == AAUDIO_UNSPECIFIED)
-                              ? 2 : getSamplesPerFrame();
-    audio_channel_mask_t channelMask = samplesPerFrame <= 2 ?
-                            audio_channel_out_mask_from_count(samplesPerFrame) :
-                            audio_channel_mask_for_index_assignment_from_count(samplesPerFrame);
+    audio_channel_mask_t channelMask =
+            AAudio_getChannelMaskForOpen(getChannelMask(), getSamplesPerFrame(), false /*isInput*/);
 
     audio_output_flags_t flags;
     aaudio_performance_mode_t perfMode = getPerformanceMode();
@@ -199,7 +194,9 @@
     doSetVolume();
 
     // Get the actual values from the AudioTrack.
-    setSamplesPerFrame(mAudioTrack->channelCount());
+    setChannelMask(AAudioConvert_androidToAAudioChannelMask(
+        mAudioTrack->channelMask(), false /*isInput*/,
+        AAudio_isChannelIndexMask(getChannelMask())));
     setFormat(mAudioTrack->format());
     setDeviceFormat(mAudioTrack->format());
     setSampleRate(mAudioTrack->getSampleRate());
diff --git a/media/libaaudio/src/libaaudio.map.txt b/media/libaaudio/src/libaaudio.map.txt
index 1dd44d1..8fa9e38 100644
--- a/media/libaaudio/src/libaaudio.map.txt
+++ b/media/libaaudio/src/libaaudio.map.txt
@@ -25,6 +25,7 @@
     AAudioStreamBuilder_setPrivacySensitive;   # introduced=30
     AAudioStreamBuilder_setPackageName;   # introduced=31
     AAudioStreamBuilder_setAttributionTag;   # introduced=31
+    AAudioStreamBuilder_setChannelMask;    # introduced=32
     AAudioStreamBuilder_openStream;
     AAudioStreamBuilder_delete;
     AAudioStream_close;
@@ -61,6 +62,7 @@
     AAudioStream_isMMapUsed;
     AAudioStream_isPrivacySensitive;   # introduced=30
     AAudioStream_release;        # introduced=30
+    AAudioStream_getChannelMask;  # introduced=32
   local:
     *;
 };
diff --git a/media/libaaudio/src/utility/AAudioUtilities.cpp b/media/libaaudio/src/utility/AAudioUtilities.cpp
index d795725..d829934 100644
--- a/media/libaaudio/src/utility/AAudioUtilities.cpp
+++ b/media/libaaudio/src/utility/AAudioUtilities.cpp
@@ -256,6 +256,248 @@
     return privacySensitive ? AUDIO_FLAG_CAPTURE_PRIVATE : AUDIO_FLAG_NONE;
 }
 
+audio_channel_mask_t AAudioConvert_aaudioToAndroidChannelLayoutMask(
+        aaudio_channel_mask_t channelMask, bool isInput) {
+    if (isInput) {
+        switch (channelMask) {
+            case AAUDIO_CHANNEL_MONO:
+                return AUDIO_CHANNEL_IN_MONO;
+            case AAUDIO_CHANNEL_STEREO:
+                return AUDIO_CHANNEL_IN_STEREO;
+            case AAUDIO_CHANNEL_FRONT_BACK:
+                return AUDIO_CHANNEL_IN_FRONT_BACK;
+            case AAUDIO_CHANNEL_2POINT0POINT2:
+                return AUDIO_CHANNEL_IN_2POINT0POINT2;
+            case AAUDIO_CHANNEL_2POINT1POINT2:
+                return AUDIO_CHANNEL_IN_2POINT1POINT2;
+            case AAUDIO_CHANNEL_3POINT0POINT2:
+                return AUDIO_CHANNEL_IN_3POINT0POINT2;
+            case AAUDIO_CHANNEL_3POINT1POINT2:
+                return AUDIO_CHANNEL_IN_3POINT1POINT2;
+            case AAUDIO_CHANNEL_5POINT1:
+                return AUDIO_CHANNEL_IN_5POINT1;
+            default:
+                ALOGE("%s() %#x unrecognized", __func__, channelMask);
+                return AUDIO_CHANNEL_INVALID;
+        }
+    } else {
+        switch (channelMask) {
+            case AAUDIO_CHANNEL_MONO:
+                return AUDIO_CHANNEL_OUT_MONO;
+            case AAUDIO_CHANNEL_STEREO:
+                return AUDIO_CHANNEL_OUT_STEREO;
+            case AAUDIO_CHANNEL_2POINT1:
+                return AUDIO_CHANNEL_OUT_2POINT1;
+            case AAUDIO_CHANNEL_TRI:
+                return AUDIO_CHANNEL_OUT_TRI;
+            case AAUDIO_CHANNEL_TRI_BACK:
+                return AUDIO_CHANNEL_OUT_TRI_BACK;
+            case AAUDIO_CHANNEL_3POINT1:
+                return AUDIO_CHANNEL_OUT_3POINT1;
+            case AAUDIO_CHANNEL_2POINT0POINT2:
+                return AUDIO_CHANNEL_OUT_2POINT0POINT2;
+            case AAUDIO_CHANNEL_2POINT1POINT2:
+                return AUDIO_CHANNEL_OUT_2POINT1POINT2;
+            case AAUDIO_CHANNEL_3POINT0POINT2:
+                return AUDIO_CHANNEL_OUT_3POINT0POINT2;
+            case AAUDIO_CHANNEL_3POINT1POINT2:
+                return AUDIO_CHANNEL_OUT_3POINT1POINT2;
+            case AAUDIO_CHANNEL_QUAD:
+                return AUDIO_CHANNEL_OUT_QUAD;
+            case AAUDIO_CHANNEL_QUAD_SIDE:
+                return AUDIO_CHANNEL_OUT_QUAD_SIDE;
+            case AAUDIO_CHANNEL_SURROUND:
+                return AUDIO_CHANNEL_OUT_SURROUND;
+            case AAUDIO_CHANNEL_PENTA:
+                return AUDIO_CHANNEL_OUT_PENTA;
+            case AAUDIO_CHANNEL_5POINT1:
+                return AUDIO_CHANNEL_OUT_5POINT1;
+            case AAUDIO_CHANNEL_5POINT1_SIDE:
+                return AUDIO_CHANNEL_OUT_5POINT1_SIDE;
+            case AAUDIO_CHANNEL_5POINT1POINT2:
+                return AUDIO_CHANNEL_OUT_5POINT1POINT2;
+            case AAUDIO_CHANNEL_5POINT1POINT4:
+                return AUDIO_CHANNEL_OUT_5POINT1POINT4;
+            case AAUDIO_CHANNEL_6POINT1:
+                return AUDIO_CHANNEL_OUT_6POINT1;
+            case AAUDIO_CHANNEL_7POINT1:
+                return AUDIO_CHANNEL_OUT_7POINT1;
+            case AAUDIO_CHANNEL_7POINT1POINT2:
+                return AUDIO_CHANNEL_OUT_7POINT1POINT2;
+            case AAUDIO_CHANNEL_7POINT1POINT4:
+                return AUDIO_CHANNEL_OUT_7POINT1POINT4;
+            // TODO: add 9point1point4 and 9point1point6 when they are added in audio-hal-enums.h
+            // case AAUDIO_CHANNEL_9POINT1POINT4:
+            //     return AUDIO_CHANNEL_OUT_9POINT1POINT4;
+            // case AAUDIO_CHANNEL_9POINT1POINT6:
+            //     return AUDIO_CHANNEL_OUT_9POINT1POINT6;
+            default:
+                ALOGE("%s() %#x unrecognized", __func__, channelMask);
+                return AUDIO_CHANNEL_INVALID;
+        }
+    }
+}
+
+aaudio_channel_mask_t AAudioConvert_androidToAAudioChannelLayoutMask(
+        audio_channel_mask_t channelMask, bool isInput) {
+    if (isInput) {
+        switch (channelMask) {
+            case AUDIO_CHANNEL_IN_MONO:
+                return AAUDIO_CHANNEL_MONO;
+            case AUDIO_CHANNEL_IN_STEREO:
+                return AAUDIO_CHANNEL_STEREO;
+            case AUDIO_CHANNEL_IN_FRONT_BACK:
+                return AAUDIO_CHANNEL_FRONT_BACK;
+            case AUDIO_CHANNEL_IN_2POINT0POINT2:
+                return AAUDIO_CHANNEL_2POINT0POINT2;
+            case AUDIO_CHANNEL_IN_2POINT1POINT2:
+                return AAUDIO_CHANNEL_2POINT1POINT2;
+            case AUDIO_CHANNEL_IN_3POINT0POINT2:
+                return AAUDIO_CHANNEL_3POINT0POINT2;
+            case AUDIO_CHANNEL_IN_3POINT1POINT2:
+                return AAUDIO_CHANNEL_3POINT1POINT2;
+            case AUDIO_CHANNEL_IN_5POINT1:
+                return AAUDIO_CHANNEL_5POINT1;
+            default:
+                ALOGE("%s() %#x unrecognized", __func__, channelMask);
+                return AAUDIO_CHANNEL_INVALID;
+        }
+    } else {
+        switch (channelMask) {
+            case AUDIO_CHANNEL_OUT_MONO:
+                return AAUDIO_CHANNEL_MONO;
+            case AUDIO_CHANNEL_OUT_STEREO:
+                return AAUDIO_CHANNEL_STEREO;
+            case AUDIO_CHANNEL_OUT_2POINT1:
+                return AAUDIO_CHANNEL_2POINT1;
+            case AUDIO_CHANNEL_OUT_TRI:
+                return AAUDIO_CHANNEL_TRI;
+            case AUDIO_CHANNEL_OUT_TRI_BACK:
+                return AAUDIO_CHANNEL_TRI_BACK;
+            case AUDIO_CHANNEL_OUT_3POINT1:
+                return AAUDIO_CHANNEL_3POINT1;
+            case AUDIO_CHANNEL_OUT_2POINT0POINT2:
+                return AAUDIO_CHANNEL_2POINT0POINT2;
+            case AUDIO_CHANNEL_OUT_2POINT1POINT2:
+                return AAUDIO_CHANNEL_2POINT1POINT2;
+            case AUDIO_CHANNEL_OUT_3POINT0POINT2:
+                return AAUDIO_CHANNEL_3POINT0POINT2;
+            case AUDIO_CHANNEL_OUT_3POINT1POINT2:
+                return AAUDIO_CHANNEL_3POINT1POINT2;
+            case AUDIO_CHANNEL_OUT_QUAD:
+                return AAUDIO_CHANNEL_QUAD;
+            case AUDIO_CHANNEL_OUT_QUAD_SIDE:
+                return AAUDIO_CHANNEL_QUAD_SIDE;
+            case AUDIO_CHANNEL_OUT_SURROUND:
+                return AAUDIO_CHANNEL_SURROUND;
+            case AUDIO_CHANNEL_OUT_PENTA:
+                return AAUDIO_CHANNEL_PENTA;
+            case AUDIO_CHANNEL_OUT_5POINT1:
+                return AAUDIO_CHANNEL_5POINT1;
+            case AUDIO_CHANNEL_OUT_5POINT1_SIDE:
+                return AAUDIO_CHANNEL_5POINT1_SIDE;
+            case AUDIO_CHANNEL_OUT_5POINT1POINT2:
+                return AAUDIO_CHANNEL_5POINT1POINT2;
+            case AUDIO_CHANNEL_OUT_5POINT1POINT4:
+                return AAUDIO_CHANNEL_5POINT1POINT4;
+            case AUDIO_CHANNEL_OUT_6POINT1:
+                return AAUDIO_CHANNEL_6POINT1;
+            case AUDIO_CHANNEL_OUT_7POINT1:
+                return AAUDIO_CHANNEL_7POINT1;
+            case AUDIO_CHANNEL_OUT_7POINT1POINT2:
+                return AAUDIO_CHANNEL_7POINT1POINT2;
+            case AUDIO_CHANNEL_OUT_7POINT1POINT4:
+                return AAUDIO_CHANNEL_7POINT1POINT4;
+            // TODO: add 9point1point4 and 9point1point6 when they are added in audio-hal-enums.h
+            // case AUDIO_CHANNEL_OUT_9POINT1POINT4:
+            //     return AAUDIO_CHANNEL_9POINT1POINT4;
+            // case AUDIO_CHANNEL_OUT_9POINT1POINT6:
+            //     return AAUDIO_CHANNEL_9POINT1POINT6;
+            default:
+                ALOGE("%s() %#x unrecognized", __func__, channelMask);
+                return AAUDIO_CHANNEL_INVALID;
+        }
+    }
+}
+
+int32_t AAudioConvert_channelMaskToCount(aaudio_channel_mask_t channelMask) {
+    return __builtin_popcount(channelMask & ~AAUDIO_CHANNEL_BIT_INDEX);
+}
+
+aaudio_channel_mask_t AAudioConvert_channelCountToMask(int32_t channelCount) {
+    if (channelCount < 0 || channelCount > AUDIO_CHANNEL_COUNT_MAX) {
+        return AAUDIO_CHANNEL_INVALID;
+    }
+
+    if (channelCount == 0) {
+        return AAUDIO_UNSPECIFIED;
+    }
+
+    // Return index mask if the channel count is greater than 2.
+    return AAUDIO_CHANNEL_BIT_INDEX | ((1 << channelCount) - 1);
+}
+
+aaudio_channel_mask_t AAudioConvert_androidToAAudioChannelIndexMask(
+        audio_channel_mask_t channelMask) {
+    if (audio_channel_mask_get_representation(channelMask) != AUDIO_CHANNEL_REPRESENTATION_INDEX) {
+        ALOGE("%s() %#x not an index mask", __func__, channelMask);
+        return AAUDIO_CHANNEL_INVALID;
+    }
+    return (channelMask & ~AUDIO_CHANNEL_INDEX_HDR) | AAUDIO_CHANNEL_BIT_INDEX;
+}
+
+audio_channel_mask_t AAudioConvert_aaudioToAndroidChannelIndexMask(
+        aaudio_channel_mask_t channelMask) {
+    if (!AAudio_isChannelIndexMask(channelMask)) {
+        ALOGE("%s() %#x not an index mask", __func__, channelMask);
+        return AUDIO_CHANNEL_INVALID;
+    }
+    return audio_channel_mask_for_index_assignment_from_count(
+            AAudioConvert_channelMaskToCount(channelMask));
+}
+
+aaudio_channel_mask_t AAudioConvert_androidToAAudioChannelMask(
+        audio_channel_mask_t channelMask, bool isInput, bool indexMaskRequired) {
+    if (audio_channel_mask_get_representation(channelMask) == AUDIO_CHANNEL_REPRESENTATION_INDEX) {
+        return AAudioConvert_androidToAAudioChannelIndexMask(channelMask);
+    }
+    if (indexMaskRequired) {
+        // Require index mask, `channelMask` here is a position mask.
+        const int channelCount = isInput ? audio_channel_count_from_in_mask(channelMask)
+                                         : audio_channel_count_from_out_mask(channelMask);
+        return AAudioConvert_channelCountToMask(channelCount);
+    }
+    return AAudioConvert_androidToAAudioChannelLayoutMask(channelMask, isInput);
+}
+
+audio_channel_mask_t AAudioConvert_aaudioToAndroidChannelMask(
+        aaudio_channel_mask_t channelMask, bool isInput) {
+    return AAudio_isChannelIndexMask(channelMask)
+            ? AAudioConvert_aaudioToAndroidChannelIndexMask(channelMask)
+            : AAudioConvert_aaudioToAndroidChannelLayoutMask(channelMask, isInput);
+}
+
+bool AAudio_isChannelIndexMask(aaudio_channel_mask_t channelMask) {
+    return (channelMask & AAUDIO_CHANNEL_BIT_INDEX) == AAUDIO_CHANNEL_BIT_INDEX;
+}
+
+audio_channel_mask_t AAudio_getChannelMaskForOpen(
+        aaudio_channel_mask_t channelMask, int32_t samplesPerFrame, bool isInput) {
+    if (channelMask != AAUDIO_UNSPECIFIED) {
+        if (AAudio_isChannelIndexMask(channelMask) && samplesPerFrame <= 2) {
+            // When it is index mask and the count is less than 3, use position mask
+            // instead of index mask for opening a stream. This may need to be revisited
+            // when making channel index mask public.
+            return isInput ? audio_channel_in_mask_from_count(samplesPerFrame)
+                           : audio_channel_out_mask_from_count(samplesPerFrame);
+        }
+        return AAudioConvert_aaudioToAndroidChannelMask(channelMask, isInput);
+    }
+
+    // Return stereo when unspecified.
+    return isInput ? AUDIO_CHANNEL_IN_STEREO : AUDIO_CHANNEL_OUT_STEREO;
+}
+
 int32_t AAudioConvert_framesToBytes(int32_t numFrames,
                                     int32_t bytesPerFrame,
                                     int32_t *sizeInBytes) {
diff --git a/media/libaaudio/src/utility/AAudioUtilities.h b/media/libaaudio/src/utility/AAudioUtilities.h
index ee8cfd2..52e57da 100644
--- a/media/libaaudio/src/utility/AAudioUtilities.h
+++ b/media/libaaudio/src/utility/AAudioUtilities.h
@@ -96,6 +96,33 @@
 audio_flags_mask_t AAudioConvert_privacySensitiveToAudioFlagsMask(
         bool privacySensitive);
 
+audio_channel_mask_t AAudioConvert_aaudioToAndroidChannelLayoutMask(
+        aaudio_channel_mask_t channelMask, bool isInput);
+
+aaudio_channel_mask_t AAudioConvert_androidToAAudioChannelLayoutMask(
+        audio_channel_mask_t channelMask, bool isInput);
+
+aaudio_channel_mask_t AAudioConvert_androidToAAudioChannelIndexMask(
+        audio_channel_mask_t channelMask);
+
+audio_channel_mask_t AAudioConvert_aaudioToAndroidChannelIndexMask(
+        aaudio_channel_mask_t channelMask);
+
+aaudio_channel_mask_t AAudioConvert_androidToAAudioChannelMask(
+        audio_channel_mask_t channelMask, bool isInput, bool indexMaskRequired);
+
+audio_channel_mask_t AAudioConvert_aaudioToAndroidChannelMask(
+        aaudio_channel_mask_t channelMask, bool isInput);
+
+bool AAudio_isChannelIndexMask(aaudio_channel_mask_t channelMask);
+
+int32_t AAudioConvert_channelMaskToCount(aaudio_channel_mask_t channelMask);
+
+aaudio_channel_mask_t AAudioConvert_channelCountToMask(int32_t channelCount);
+
+audio_channel_mask_t AAudio_getChannelMaskForOpen(
+        aaudio_channel_mask_t channelMask, int32_t samplesPerFrame, bool isInput);
+
 // Note that this code may be replaced by Settings or by some other system configuration tool.
 
 /**
@@ -316,4 +343,36 @@
     std::atomic<int> mRequested{0};
     std::atomic<int> mAcknowledged{0};
 };
+
+enum {
+    /**
+     * Audio channel index mask, only used internally.
+     */
+    AAUDIO_CHANNEL_BIT_INDEX = 0x80000000,
+    AAUDIO_CHANNEL_INDEX_MASK_1 = AAUDIO_CHANNEL_BIT_INDEX | (1 << 1) - 1,
+    AAUDIO_CHANNEL_INDEX_MASK_2 = AAUDIO_CHANNEL_BIT_INDEX | (1 << 2) - 1,
+    AAUDIO_CHANNEL_INDEX_MASK_3 = AAUDIO_CHANNEL_BIT_INDEX | (1 << 3) - 1,
+    AAUDIO_CHANNEL_INDEX_MASK_4 = AAUDIO_CHANNEL_BIT_INDEX | (1 << 4) - 1,
+    AAUDIO_CHANNEL_INDEX_MASK_5 = AAUDIO_CHANNEL_BIT_INDEX | (1 << 5) - 1,
+    AAUDIO_CHANNEL_INDEX_MASK_6 = AAUDIO_CHANNEL_BIT_INDEX | (1 << 6) - 1,
+    AAUDIO_CHANNEL_INDEX_MASK_7 = AAUDIO_CHANNEL_BIT_INDEX | (1 << 7) - 1,
+    AAUDIO_CHANNEL_INDEX_MASK_8 = AAUDIO_CHANNEL_BIT_INDEX | (1 << 8) - 1,
+    AAUDIO_CHANNEL_INDEX_MASK_9 = AAUDIO_CHANNEL_BIT_INDEX | (1 << 9) - 1,
+    AAUDIO_CHANNEL_INDEX_MASK_10 = AAUDIO_CHANNEL_BIT_INDEX | (1 << 10) - 1,
+    AAUDIO_CHANNEL_INDEX_MASK_11 = AAUDIO_CHANNEL_BIT_INDEX | (1 << 11) - 1,
+    AAUDIO_CHANNEL_INDEX_MASK_12 = AAUDIO_CHANNEL_BIT_INDEX | (1 << 12) - 1,
+    AAUDIO_CHANNEL_INDEX_MASK_13 = AAUDIO_CHANNEL_BIT_INDEX | (1 << 13) - 1,
+    AAUDIO_CHANNEL_INDEX_MASK_14 = AAUDIO_CHANNEL_BIT_INDEX | (1 << 14) - 1,
+    AAUDIO_CHANNEL_INDEX_MASK_15 = AAUDIO_CHANNEL_BIT_INDEX | (1 << 15) - 1,
+    AAUDIO_CHANNEL_INDEX_MASK_16 = AAUDIO_CHANNEL_BIT_INDEX | (1 << 16) - 1,
+    AAUDIO_CHANNEL_INDEX_MASK_17 = AAUDIO_CHANNEL_BIT_INDEX | (1 << 17) - 1,
+    AAUDIO_CHANNEL_INDEX_MASK_18 = AAUDIO_CHANNEL_BIT_INDEX | (1 << 18) - 1,
+    AAUDIO_CHANNEL_INDEX_MASK_19 = AAUDIO_CHANNEL_BIT_INDEX | (1 << 19) - 1,
+    AAUDIO_CHANNEL_INDEX_MASK_20 = AAUDIO_CHANNEL_BIT_INDEX | (1 << 20) - 1,
+    AAUDIO_CHANNEL_INDEX_MASK_21 = AAUDIO_CHANNEL_BIT_INDEX | (1 << 21) - 1,
+    AAUDIO_CHANNEL_INDEX_MASK_22 = AAUDIO_CHANNEL_BIT_INDEX | (1 << 22) - 1,
+    AAUDIO_CHANNEL_INDEX_MASK_23 = AAUDIO_CHANNEL_BIT_INDEX | (1 << 23) - 1,
+    AAUDIO_CHANNEL_INDEX_MASK_24 = AAUDIO_CHANNEL_BIT_INDEX | (1 << 24) - 1,
+};
+
 #endif //UTILITY_AAUDIO_UTILITIES_H
diff --git a/media/libaudioclient/include/media/AudioRecord.h b/media/libaudioclient/include/media/AudioRecord.h
index 326919a..f17ee3a 100644
--- a/media/libaudioclient/include/media/AudioRecord.h
+++ b/media/libaudioclient/include/media/AudioRecord.h
@@ -264,6 +264,7 @@
             size_t      frameCount() const  { return mFrameCount; }
             size_t      frameSize() const   { return mFrameSize; }
             audio_source_t inputSource() const  { return mAttributes.source; }
+            audio_channel_mask_t channelMask() const { return mChannelMask; }
 
     /*
      * Return the period of the notification callback in frames.
diff --git a/media/libaudioclient/include/media/AudioTrack.h b/media/libaudioclient/include/media/AudioTrack.h
index f482098..a2cd12f 100644
--- a/media/libaudioclient/include/media/AudioTrack.h
+++ b/media/libaudioclient/include/media/AudioTrack.h
@@ -401,6 +401,7 @@
 
             uint32_t    channelCount() const { return mChannelCount; }
             size_t      frameCount() const  { return mFrameCount; }
+            audio_channel_mask_t channelMask() const { return mChannelMask; }
 
     /*
      * Return the period of the notification callback in frames.
diff --git a/media/libaudiohal/impl/ConversionHelperHidl.cpp b/media/libaudiohal/impl/ConversionHelperHidl.cpp
index 32eaa31..0503698 100644
--- a/media/libaudiohal/impl/ConversionHelperHidl.cpp
+++ b/media/libaudiohal/impl/ConversionHelperHidl.cpp
@@ -105,6 +105,15 @@
 }
 
 // static
+void ConversionHelperHidl::argsFromHal(
+        const Vector<String16>& args, hidl_vec<hidl_string> *hidlArgs) {
+    hidlArgs->resize(args.size());
+    for (size_t i = 0; i < args.size(); ++i) {
+        (*hidlArgs)[i] = String8(args[i]).c_str();
+    }
+}
+
+// static
 status_t ConversionHelperHidl::analyzeResult(const Result& result) {
     switch (result) {
         case Result::OK: return OK;
diff --git a/media/libaudiohal/impl/ConversionHelperHidl.h b/media/libaudiohal/impl/ConversionHelperHidl.h
index 59122c7..2909013 100644
--- a/media/libaudiohal/impl/ConversionHelperHidl.h
+++ b/media/libaudiohal/impl/ConversionHelperHidl.h
@@ -21,6 +21,8 @@
 #include <hidl/HidlSupport.h>
 #include <system/audio.h>
 #include <utils/String8.h>
+#include <utils/String16.h>
+#include <utils/Vector.h>
 
 using ::android::hardware::audio::CPP_VERSION::ParameterValue;
 using CoreResult = ::android::hardware::audio::CPP_VERSION::Result;
@@ -37,6 +39,7 @@
     static status_t keysFromHal(const String8& keys, hidl_vec<hidl_string> *hidlKeys);
     static status_t parametersFromHal(const String8& kvPairs, hidl_vec<ParameterValue> *hidlParams);
     static void parametersToHal(const hidl_vec<ParameterValue>& parameters, String8 *values);
+    static void argsFromHal(const Vector<String16>& args, hidl_vec<hidl_string> *hidlArgs);
 
     ConversionHelperHidl(const char* className);
 
diff --git a/media/libaudiohal/impl/DeviceHalHidl.cpp b/media/libaudiohal/impl/DeviceHalHidl.cpp
index ca4f663..f86df1e 100644
--- a/media/libaudiohal/impl/DeviceHalHidl.cpp
+++ b/media/libaudiohal/impl/DeviceHalHidl.cpp
@@ -457,11 +457,13 @@
 }
 #endif
 
-status_t DeviceHalHidl::dump(int fd) {
+status_t DeviceHalHidl::dump(int fd, const Vector<String16>& args) {
     if (mDevice == 0) return NO_INIT;
     native_handle_t* hidlHandle = native_handle_create(1, 0);
     hidlHandle->data[0] = fd;
-    Return<void> ret = mDevice->debug(hidlHandle, {} /* options */);
+    hidl_vec<hidl_string> hidlArgs;
+    argsFromHal(args, &hidlArgs);
+    Return<void> ret = mDevice->debug(hidlHandle, hidlArgs);
     native_handle_delete(hidlHandle);
     return processReturn("dump", ret);
 }
diff --git a/media/libaudiohal/impl/DeviceHalHidl.h b/media/libaudiohal/impl/DeviceHalHidl.h
index 2c847cf..2694ab3 100644
--- a/media/libaudiohal/impl/DeviceHalHidl.h
+++ b/media/libaudiohal/impl/DeviceHalHidl.h
@@ -119,7 +119,7 @@
     status_t addDeviceEffect(audio_port_handle_t device, sp<EffectHalInterface> effect) override;
     status_t removeDeviceEffect(audio_port_handle_t device, sp<EffectHalInterface> effect) override;
 
-    virtual status_t dump(int fd);
+    status_t dump(int fd, const Vector<String16>& args) override;
 
   private:
     friend class DevicesFactoryHalHidl;
diff --git a/media/libaudiohal/impl/DeviceHalLocal.cpp b/media/libaudiohal/impl/DeviceHalLocal.cpp
index af7dc1a..e0304af 100644
--- a/media/libaudiohal/impl/DeviceHalLocal.cpp
+++ b/media/libaudiohal/impl/DeviceHalLocal.cpp
@@ -233,7 +233,7 @@
     return INVALID_OPERATION;
 }
 
-status_t DeviceHalLocal::dump(int fd) {
+status_t DeviceHalLocal::dump(int fd, const Vector<String16>& /* args */) {
     return mDev->dump(mDev, fd);
 }
 
diff --git a/media/libaudiohal/impl/DeviceHalLocal.h b/media/libaudiohal/impl/DeviceHalLocal.h
index 46b510b..2fde936 100644
--- a/media/libaudiohal/impl/DeviceHalLocal.h
+++ b/media/libaudiohal/impl/DeviceHalLocal.h
@@ -112,7 +112,7 @@
     status_t addDeviceEffect(audio_port_handle_t device, sp<EffectHalInterface> effect) override;
     status_t removeDeviceEffect(audio_port_handle_t device, sp<EffectHalInterface> effect) override;
 
-    virtual status_t dump(int fd);
+    status_t dump(int fd, const Vector<String16>& args) override;
 
     void closeOutputStream(struct audio_stream_out *stream_out);
     void closeInputStream(struct audio_stream_in *stream_in);
diff --git a/media/libaudiohal/impl/StreamHalHidl.cpp b/media/libaudiohal/impl/StreamHalHidl.cpp
index 539a149..452f84d 100644
--- a/media/libaudiohal/impl/StreamHalHidl.cpp
+++ b/media/libaudiohal/impl/StreamHalHidl.cpp
@@ -152,11 +152,13 @@
     return processReturn("standby", mStream->standby());
 }
 
-status_t StreamHalHidl::dump(int fd) {
+status_t StreamHalHidl::dump(int fd, const Vector<String16>& args) {
     if (!mStream) return NO_INIT;
     native_handle_t* hidlHandle = native_handle_create(1, 0);
     hidlHandle->data[0] = fd;
-    Return<void> ret = mStream->debug(hidlHandle, {} /* options */);
+    hidl_vec<hidl_string> hidlArgs;
+    argsFromHal(args, &hidlArgs);
+    Return<void> ret = mStream->debug(hidlHandle, hidlArgs);
     native_handle_delete(hidlHandle);
     mStreamPowerLog.dump(fd);
     return processReturn("dump", ret);
diff --git a/media/libaudiohal/impl/StreamHalHidl.h b/media/libaudiohal/impl/StreamHalHidl.h
index 970903b..6f5dd04 100644
--- a/media/libaudiohal/impl/StreamHalHidl.h
+++ b/media/libaudiohal/impl/StreamHalHidl.h
@@ -71,7 +71,7 @@
     // Put the audio hardware input/output into standby mode.
     virtual status_t standby();
 
-    virtual status_t dump(int fd);
+    virtual status_t dump(int fd, const Vector<String16>& args) override;
 
     // Start a stream operating in mmap mode.
     virtual status_t start();
diff --git a/media/libaudiohal/impl/StreamHalLocal.cpp b/media/libaudiohal/impl/StreamHalLocal.cpp
index 34bd5df..11fac61 100644
--- a/media/libaudiohal/impl/StreamHalLocal.cpp
+++ b/media/libaudiohal/impl/StreamHalLocal.cpp
@@ -87,7 +87,8 @@
     return mStream->standby(mStream);
 }
 
-status_t StreamHalLocal::dump(int fd) {
+status_t StreamHalLocal::dump(int fd, const Vector<String16>& args) {
+    (void) args;
     status_t status = mStream->dump(mStream, fd);
     mStreamPowerLog.dump(fd);
     return status;
diff --git a/media/libaudiohal/impl/StreamHalLocal.h b/media/libaudiohal/impl/StreamHalLocal.h
index b260495..493c521 100644
--- a/media/libaudiohal/impl/StreamHalLocal.h
+++ b/media/libaudiohal/impl/StreamHalLocal.h
@@ -50,7 +50,7 @@
     // Put the audio hardware input/output into standby mode.
     virtual status_t standby();
 
-    virtual status_t dump(int fd);
+    virtual status_t dump(int fd, const Vector<String16>& args) override;
 
     // Start a stream operating in mmap mode.
     virtual status_t start() = 0;
diff --git a/media/libaudiohal/include/media/audiohal/DeviceHalInterface.h b/media/libaudiohal/include/media/audiohal/DeviceHalInterface.h
index 29ef011..69cbcec 100644
--- a/media/libaudiohal/include/media/audiohal/DeviceHalInterface.h
+++ b/media/libaudiohal/include/media/audiohal/DeviceHalInterface.h
@@ -120,7 +120,7 @@
     virtual status_t removeDeviceEffect(
             audio_port_handle_t device, sp<EffectHalInterface> effect) = 0;
 
-    virtual status_t dump(int fd) = 0;
+    virtual status_t dump(int fd, const Vector<String16>& args) = 0;
 
   protected:
     // Subclasses can not be constructed directly by clients.
diff --git a/media/libaudiohal/include/media/audiohal/StreamHalInterface.h b/media/libaudiohal/include/media/audiohal/StreamHalInterface.h
index 2be12fb..2b5b2db 100644
--- a/media/libaudiohal/include/media/audiohal/StreamHalInterface.h
+++ b/media/libaudiohal/include/media/audiohal/StreamHalInterface.h
@@ -25,6 +25,7 @@
 #include <utils/Errors.h>
 #include <utils/RefBase.h>
 #include <utils/String8.h>
+#include <utils/Vector.h>
 
 namespace android {
 
@@ -69,7 +70,7 @@
     // Put the audio hardware input/output into standby mode.
     virtual status_t standby() = 0;
 
-    virtual status_t dump(int fd) = 0;
+    virtual status_t dump(int fd, const Vector<String16>& args = {}) = 0;
 
     // Start a stream operating in mmap mode.
     virtual status_t start() = 0;
diff --git a/media/libstagefright/CodecBase.cpp b/media/libstagefright/CodecBase.cpp
index 5b724aa..b9fb041 100644
--- a/media/libstagefright/CodecBase.cpp
+++ b/media/libstagefright/CodecBase.cpp
@@ -40,4 +40,31 @@
     buf->size = size;
 }
 
+status_t CodecBase::querySupportedParameters(std::vector<std::string> *names) {
+    if (names == nullptr) {
+        return BAD_VALUE;
+    }
+    names->clear();
+    return OK;
+}
+
+status_t CodecBase::describeParameter(const std::string &, CodecParameterDescriptor *) {
+    return ERROR_UNSUPPORTED;
+}
+
+status_t CodecBase::subscribeToParameters(const std::vector<std::string> &names) {
+    if (names.empty()) {
+        return OK;
+    }
+    return ERROR_UNSUPPORTED;
+}
+
+status_t CodecBase::unsubscribeFromParameters(const std::vector<std::string> &names) {
+    if (names.empty()) {
+        return OK;
+    }
+    return ERROR_UNSUPPORTED;
+}
+
+
 } // namespace android
diff --git a/media/libstagefright/include/media/stagefright/CodecBase.h b/media/libstagefright/include/media/stagefright/CodecBase.h
index efb2f86..48721ec 100644
--- a/media/libstagefright/include/media/stagefright/CodecBase.h
+++ b/media/libstagefright/include/media/stagefright/CodecBase.h
@@ -252,9 +252,7 @@
      *         INVALID_OPERATION if already released;
      *         ERROR_UNSUPPORTED if not supported.
      */
-    virtual status_t querySupportedParameters([[maybe_unused]] std::vector<std::string> *names) {
-        return ERROR_UNSUPPORTED;
-    }
+    virtual status_t querySupportedParameters(std::vector<std::string> *names);
     /**
      * Fill |desc| with description of the parameter with |name|.
      *
@@ -267,10 +265,8 @@
      *         ERROR_UNSUPPORTED if not supported.
      */
     virtual status_t describeParameter(
-            [[maybe_unused]] const std::string &name,
-            [[maybe_unused]] CodecParameterDescriptor *desc) {
-        return ERROR_UNSUPPORTED;
-    }
+            const std::string &name,
+            CodecParameterDescriptor *desc);
     /**
      * Subscribe to parameters in |names| and get output format change event
      * when they change.
@@ -281,10 +277,7 @@
      *         INVALID_OPERATION if already released;
      *         ERROR_UNSUPPORTED if not supported.
      */
-    virtual status_t subscribeToParameters(
-            [[maybe_unused]] const std::vector<std::string> &names) {
-        return ERROR_UNSUPPORTED;
-    }
+    virtual status_t subscribeToParameters(const std::vector<std::string> &names);
     /**
      * Unsubscribe from parameters in |names| and no longer get
      * output format change event when they change.
@@ -295,10 +288,7 @@
      *         INVALID_OPERATION if already released;
      *         ERROR_UNSUPPORTED if not supported.
      */
-    virtual status_t unsubscribeFromParameters(
-            [[maybe_unused]] const std::vector<std::string> &names) {
-        return ERROR_UNSUPPORTED;
-    }
+    virtual status_t unsubscribeFromParameters(const std::vector<std::string> &names);
 
     typedef CodecBase *(*CreateCodecFunc)(void);
     typedef PersistentSurface *(*CreateInputSurfaceFunc)(void);
diff --git a/media/mediaserver/Android.bp b/media/mediaserver/Android.bp
index 79b192e..e25658f 100644
--- a/media/mediaserver/Android.bp
+++ b/media/mediaserver/Android.bp
@@ -35,7 +35,6 @@
         "android.hardware.media.omx@1.0",
         "libandroidicu",
         "libfmq",
-        "libbase",
         "libbinder",
         "libhidlbase",
         "liblog",
diff --git a/media/mediaserver/main_mediaserver.cpp b/media/mediaserver/main_mediaserver.cpp
index dc1b9b8..58e2d2a 100644
--- a/media/mediaserver/main_mediaserver.cpp
+++ b/media/mediaserver/main_mediaserver.cpp
@@ -18,7 +18,6 @@
 #define LOG_TAG "mediaserver"
 //#define LOG_NDEBUG 0
 
-#include <android-base/properties.h>
 #include <binder/IPCThreadState.h>
 #include <binder/ProcessState.h>
 #include <binder/IServiceManager.h>
@@ -43,12 +42,6 @@
     ResourceManagerService::instantiate();
     registerExtensions();
     ::android::hardware::configureRpcThreadpool(16, false);
-
-    if (!android::base::GetBoolProperty("ro.config.low_ram", false)) {
-        // Start the media.transcoding service if the device is not low ram
-        // device.
-        android::base::SetProperty("ctl.start", "media.transcoding");
-    }
     ProcessState::self()->startThreadPool();
     IPCThreadState::self()->joinThreadPool();
     ::android::hardware::joinRpcThreadpool();
diff --git a/media/ndk/NdkMediaFormat.cpp b/media/ndk/NdkMediaFormat.cpp
index c1793ce..b035e5a 100644
--- a/media/ndk/NdkMediaFormat.cpp
+++ b/media/ndk/NdkMediaFormat.cpp
@@ -351,6 +351,11 @@
 EXPORT const char* AMEDIAFORMAT_KEY_MIME = "mime";
 EXPORT const char* AMEDIAFORMAT_KEY_MPEG_USER_DATA = "mpeg-user-data";
 EXPORT const char* AMEDIAFORMAT_KEY_MPEG2_STREAM_HEADER = "mpeg2-stream-header";
+EXPORT const char* AMEDIAFORMAT_KEY_MPEGH_COMPATIBLE_SETS = "mpegh-compatible-sets";
+EXPORT const char* AMEDIAFORMAT_KEY_MPEGH_PROFILE_LEVEL_INDICATION =
+        "mpegh-profile-level-indication";
+EXPORT const char* AMEDIAFORMAT_KEY_MPEGH_REFERENCE_CHANNEL_LAYOUT =
+        "mpegh-reference-channel-layout";
 EXPORT const char* AMEDIAFORMAT_KEY_OPERATING_RATE = "operating-rate";
 EXPORT const char* AMEDIAFORMAT_KEY_PCM_ENCODING = "pcm-encoding";
 EXPORT const char* AMEDIAFORMAT_KEY_PRIORITY = "priority";
diff --git a/media/ndk/include/media/NdkMediaFormat.h b/media/ndk/include/media/NdkMediaFormat.h
index fbd855d..2d2fcc0 100644
--- a/media/ndk/include/media/NdkMediaFormat.h
+++ b/media/ndk/include/media/NdkMediaFormat.h
@@ -320,6 +320,34 @@
 extern const char* AMEDIAFORMAT_VIDEO_QP_P_MAX __INTRODUCED_IN(31);
 extern const char* AMEDIAFORMAT_VIDEO_QP_P_MIN __INTRODUCED_IN(31);
 
+/**
+ * MPEG-H audio profile and level compatibility.
+ *
+ * See FDAmd_2 of ISO_IEC_23008-3;2019 MHAProfileAndLevelCompatibilitySetBox.
+ *
+ * Available since API level 32.
+ */
+extern const char* AMEDIAFORMAT_KEY_MPEGH_COMPATIBLE_SETS __INTRODUCED_IN(32);
+
+/**
+ * MPEG-H audio profile level indication.
+ *
+ * See ISO_IEC_23008-3;2019 MHADecoderConfigurationRecord mpegh3daProfileLevelIndication.
+ *
+ * Available since API level 32.
+ */
+extern const char* AMEDIAFORMAT_KEY_MPEGH_PROFILE_LEVEL_INDICATION __INTRODUCED_IN(32);
+
+/**
+ * MPEG-H audio reference channel layout.
+ *
+ * See ISO_IEC_23008-3;2019 MHADecoderConfigurationRecord referenceChannelLayout
+ * and ISO_IEC_23001‐8 ChannelConfiguration value.
+ *
+ * Available since API level 32.
+ */
+extern const char* AMEDIAFORMAT_KEY_MPEGH_REFERENCE_CHANNEL_LAYOUT __INTRODUCED_IN(32);
+
 __END_DECLS
 
 #endif // _NDK_MEDIA_FORMAT_H
diff --git a/media/ndk/libmediandk.map.txt b/media/ndk/libmediandk.map.txt
index 7e9e57e..6f275c7 100644
--- a/media/ndk/libmediandk.map.txt
+++ b/media/ndk/libmediandk.map.txt
@@ -126,6 +126,9 @@
     AMEDIAFORMAT_KEY_MIME; # var introduced=21
     AMEDIAFORMAT_KEY_MPEG_USER_DATA; # var introduced=28
     AMEDIAFORMAT_KEY_MPEG2_STREAM_HEADER; # var introduced=29
+    AMEDIAFORMAT_KEY_MPEGH_COMPATIBLE_SETS; # var introduced=32
+    AMEDIAFORMAT_KEY_MPEGH_PROFILE_LEVEL_INDICATION; # var introduced=32
+    AMEDIAFORMAT_KEY_MPEGH_REFERENCE_CHANNEL_LAYOUT; # var introduced=32
     AMEDIAFORMAT_KEY_OPERATING_RATE; # var introduced=28
     AMEDIAFORMAT_KEY_PCM_BIG_ENDIAN; # var introduced=29
     AMEDIAFORMAT_KEY_PCM_ENCODING; # var introduced=28
diff --git a/media/utils/Android.bp b/media/utils/Android.bp
index bfe73d5..73c4e3b 100644
--- a/media/utils/Android.bp
+++ b/media/utils/Android.bp
@@ -81,6 +81,36 @@
     export_include_dirs: ["include"],
 }
 
+cc_library {
+    name: "libmediautils_vendor",
+    vendor_available: true,  // required for platform/hardware/interfaces
+    srcs: [
+        "MemoryLeakTrackUtil.cpp",
+    ],
+
+    cflags: [
+        "-Wall",
+        "-Wextra",
+        "-Werror",
+    ],
+    shared_libs: [
+        "liblog",
+        "libutils",
+    ],
+
+    static_libs: [
+        "libc_malloc_debug_backtrace",
+    ],
+
+    header_libs: [
+        "bionic_libc_platform_headers",
+    ],
+
+    local_include_dirs: ["include"],
+    export_include_dirs: ["include"],
+}
+
+
 cc_library_headers {
     name: "libmediautils_headers",
     vendor_available: true,  // required for platform/hardware/interfaces
diff --git a/services/audioflinger/AudioFlinger.cpp b/services/audioflinger/AudioFlinger.cpp
index dd529fc..83e70d8 100644
--- a/services/audioflinger/AudioFlinger.cpp
+++ b/services/audioflinger/AudioFlinger.cpp
@@ -695,7 +695,7 @@
         // dump all hardware devs
         for (size_t i = 0; i < mAudioHwDevs.size(); i++) {
             sp<DeviceHalInterface> dev = mAudioHwDevs.valueAt(i)->hwDevice();
-            dev->dump(fd);
+            dev->dump(fd, args);
         }
 
         mPatchPanel.dump(fd);
diff --git a/services/audioflinger/Threads.cpp b/services/audioflinger/Threads.cpp
index 08d2d93..09b950a 100644
--- a/services/audioflinger/Threads.cpp
+++ b/services/audioflinger/Threads.cpp
@@ -2088,7 +2088,7 @@
     write(fd, result.string(), result.size());
 }
 
-void AudioFlinger::PlaybackThread::dumpInternals_l(int fd, const Vector<String16>& args __unused)
+void AudioFlinger::PlaybackThread::dumpInternals_l(int fd, const Vector<String16>& args)
 {
     dprintf(fd, "  Master volume: %f\n", mMasterVolume);
     dprintf(fd, "  Master mute: %s\n", mMasterMute ? "on" : "off");
@@ -2117,7 +2117,7 @@
     }
     if (output != nullptr) {
         dprintf(fd, "  Hal stream dump:\n");
-        (void)output->stream->dump(fd);
+        (void)output->stream->dump(fd, args);
     }
 }
 
diff --git a/services/audiopolicy/enginedefault/src/Engine.cpp b/services/audiopolicy/enginedefault/src/Engine.cpp
index ca8e96c..c73c17d 100644
--- a/services/audiopolicy/enginedefault/src/Engine.cpp
+++ b/services/audiopolicy/enginedefault/src/Engine.cpp
@@ -393,12 +393,14 @@
                 || outputs.isActiveLocally(
                     toVolumeSource(AUDIO_STREAM_ACCESSIBILITY),
                     SONIFICATION_RESPECTFUL_AFTER_MUSIC_DELAY);
-        // - for STRATEGY_SONIFICATION:
+
+        bool ringActiveLocally = outputs.isActiveLocally(toVolumeSource(AUDIO_STREAM_RING), 0);
+        // - for STRATEGY_SONIFICATION and ringtone active:
         // if SPEAKER was selected, and SPEAKER_SAFE is available, use SPEAKER_SAFE instead
         // - for STRATEGY_SONIFICATION_RESPECTFUL:
         // if no media is playing on the device, check for mandatory use of "safe" speaker
         // when media would have played on speaker, and the safe speaker path is available
-        if (strategy == STRATEGY_SONIFICATION
+        if (strategy == STRATEGY_SONIFICATION || ringActiveLocally
             || (strategy == STRATEGY_SONIFICATION_RESPECTFUL && !mediaActiveLocally)) {
             devices.replaceDevicesByType(
                     AUDIO_DEVICE_OUT_SPEAKER,
@@ -506,7 +508,7 @@
         switch (commDeviceType) {
         case AUDIO_DEVICE_OUT_BLE_HEADSET:
             device = availableDevices.getDevice(
-                    AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET, String8(""), AUDIO_FORMAT_DEFAULT);
+                    AUDIO_DEVICE_IN_BLE_HEADSET, String8(""), AUDIO_FORMAT_DEFAULT);
             break;
         case AUDIO_DEVICE_OUT_SPEAKER:
             device = availableDevices.getFirstExistingDevice({
diff --git a/services/audiopolicy/managerdefault/AudioPolicyManager.cpp b/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
index 3feedb5..f84c779 100644
--- a/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
+++ b/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
@@ -5850,12 +5850,11 @@
         // With low-latency playing on speaker, music on WFD, when the first low-latency
         // output is stopped, getNewOutputDevices checks for a product strategy
         // from the list, as STRATEGY_SONIFICATION comes prior to STRATEGY_MEDIA.
-        // If an ALARM, RING or ENFORCED_AUDIBLE stream is supported by the product strategy,
+        // If an ALARM or ENFORCED_AUDIBLE stream is supported by the product strategy,
         // devices are returned for STRATEGY_SONIFICATION without checking whether the
         // stream is associated to the output descriptor.
         if (doGetOutputDevicesForVoice() || outputDesc->isStrategyActive(productStrategy) ||
                ((hasStreamActive(AUDIO_STREAM_ALARM) ||
-                hasStreamActive(AUDIO_STREAM_RING) ||
                 hasStreamActive(AUDIO_STREAM_ENFORCED_AUDIBLE)) &&
                 mOutputs.isStrategyActiveOnSameModule(productStrategy, outputDesc))) {
             // Retrieval of devices for voice DL is done on primary output profile, cannot
diff --git a/services/oboeservice/AAudioServiceEndpoint.cpp b/services/oboeservice/AAudioServiceEndpoint.cpp
index 13dd3d3..340076e 100644
--- a/services/oboeservice/AAudioServiceEndpoint.cpp
+++ b/services/oboeservice/AAudioServiceEndpoint.cpp
@@ -59,6 +59,7 @@
     result << "    Device Id:            " << getDeviceId() << "\n";
     result << "    Sample Rate:          " << getSampleRate() << "\n";
     result << "    Channel Count:        " << getSamplesPerFrame() << "\n";
+    result << "    Channel Mask:         0x" << std::hex << getChannelMask() << std::dec << "\n";
     result << "    Format:               " << getFormat() << "\n";
     result << "    Frames Per Burst:     " << mFramesPerBurst << "\n";
     result << "    Usage:                " << getUsage() << "\n";
@@ -164,6 +165,10 @@
         configuration.getSamplesPerFrame() != getSamplesPerFrame()) {
         return false;
     }
+    if (configuration.getChannelMask() != AAUDIO_UNSPECIFIED &&
+        configuration.getChannelMask() != getChannelMask()) {
+        return false;
+    }
     return true;
 }
 
diff --git a/services/oboeservice/AAudioServiceEndpointMMAP.cpp b/services/oboeservice/AAudioServiceEndpointMMAP.cpp
index a08098c..35a0890 100644
--- a/services/oboeservice/AAudioServiceEndpointMMAP.cpp
+++ b/services/oboeservice/AAudioServiceEndpointMMAP.cpp
@@ -126,20 +126,15 @@
     }
     config.sample_rate = aaudioSampleRate;
 
-    int32_t aaudioSamplesPerFrame = getSamplesPerFrame();
-
     const aaudio_direction_t direction = getDirection();
 
+    config.channel_mask = AAudio_getChannelMaskForOpen(
+            getChannelMask(), getSamplesPerFrame(), direction == AAUDIO_DIRECTION_INPUT);
+
     if (direction == AAUDIO_DIRECTION_OUTPUT) {
-        config.channel_mask = (aaudioSamplesPerFrame == AAUDIO_UNSPECIFIED)
-                              ? AUDIO_CHANNEL_OUT_STEREO
-                              : audio_channel_out_mask_from_count(aaudioSamplesPerFrame);
         mHardwareTimeOffsetNanos = OUTPUT_ESTIMATED_HARDWARE_OFFSET_NANOS; // frames at DAC later
 
     } else if (direction == AAUDIO_DIRECTION_INPUT) {
-        config.channel_mask =  (aaudioSamplesPerFrame == AAUDIO_UNSPECIFIED)
-                               ? AUDIO_CHANNEL_IN_STEREO
-                               : audio_channel_in_mask_from_count(aaudioSamplesPerFrame);
         mHardwareTimeOffsetNanos = INPUT_ESTIMATED_HARDWARE_OFFSET_NANOS; // frames at ADC earlier
 
     } else {
@@ -225,9 +220,9 @@
     }
 
     // Get information about the stream and pass it back to the caller.
-    setSamplesPerFrame((direction == AAUDIO_DIRECTION_OUTPUT)
-                       ? audio_channel_count_from_out_mask(config.channel_mask)
-                       : audio_channel_count_from_in_mask(config.channel_mask));
+    setChannelMask(AAudioConvert_androidToAAudioChannelMask(
+            config.channel_mask, getDirection() == AAUDIO_DIRECTION_INPUT,
+            AAudio_isChannelIndexMask(config.channel_mask)));
 
     // AAudio creates a copy of this FD and retains ownership of the copy.
     // Assume that AudioFlinger will close the original shared_memory_fd.
@@ -247,9 +242,9 @@
     setFormat(config.format);
     setSampleRate(config.sample_rate);
 
-    ALOGD("%s() actual rate = %d, channels = %d"
-          ", deviceId = %d, capacity = %d\n",
-          __func__, getSampleRate(), getSamplesPerFrame(), deviceId, getBufferCapacity());
+    ALOGD("%s() actual rate = %d, channels = %d channelMask = %#x, deviceId = %d, capacity = %d\n",
+          __func__, getSampleRate(), getSamplesPerFrame(), getChannelMask(),
+          deviceId, getBufferCapacity());
 
     ALOGD("%s() format = 0x%08x, frame size = %d, burst size = %d",
           __func__, getFormat(), calculateBytesPerFrame(), mFramesPerBurst);
diff --git a/services/oboeservice/AAudioServiceEndpointShared.cpp b/services/oboeservice/AAudioServiceEndpointShared.cpp
index 5fbcadb..5af0a91 100644
--- a/services/oboeservice/AAudioServiceEndpointShared.cpp
+++ b/services/oboeservice/AAudioServiceEndpointShared.cpp
@@ -78,7 +78,7 @@
     result = mStreamInternal->open(builder);
 
     setSampleRate(mStreamInternal->getSampleRate());
-    setSamplesPerFrame(mStreamInternal->getSamplesPerFrame());
+    setChannelMask(mStreamInternal->getChannelMask());
     setDeviceId(mStreamInternal->getDeviceId());
     setSessionId(mStreamInternal->getSessionId());
     setFormat(AUDIO_FORMAT_PCM_FLOAT); // force for mixer
diff --git a/services/oboeservice/AAudioServiceStreamBase.cpp b/services/oboeservice/AAudioServiceStreamBase.cpp
index 34ddd4d..4ffc127 100644
--- a/services/oboeservice/AAudioServiceStreamBase.cpp
+++ b/services/oboeservice/AAudioServiceStreamBase.cpp
@@ -73,7 +73,8 @@
 }
 
 std::string AAudioServiceStreamBase::dumpHeader() {
-    return std::string("    T   Handle   UId   Port Run State Format Burst Chan Capacity");
+    return std::string(
+            "    T   Handle   UId   Port Run State Format Burst Chan Mask     Capacity");
 }
 
 std::string AAudioServiceStreamBase::dump() const {
@@ -88,6 +89,7 @@
     result << std::setw(7) << getFormat();
     result << std::setw(6) << mFramesPerBurst;
     result << std::setw(5) << getSamplesPerFrame();
+    result << std::setw(8) << std::hex << getChannelMask() << std::dec;
     result << std::setw(9) << getBufferCapacity();
 
     return result.str();
diff --git a/services/oboeservice/AAudioServiceStreamShared.cpp b/services/oboeservice/AAudioServiceStreamShared.cpp
index c665cda..ad06d97 100644
--- a/services/oboeservice/AAudioServiceStreamShared.cpp
+++ b/services/oboeservice/AAudioServiceStreamShared.cpp
@@ -164,11 +164,11 @@
         goto error;
     }
 
-    setSamplesPerFrame(configurationInput.getSamplesPerFrame());
-    if (getSamplesPerFrame() == AAUDIO_UNSPECIFIED) {
-        setSamplesPerFrame(endpoint->getSamplesPerFrame());
+    setChannelMask(configurationInput.getChannelMask());
+    if (getChannelMask() == AAUDIO_UNSPECIFIED) {
+        setChannelMask(endpoint->getChannelMask());
     } else if (getSamplesPerFrame() != endpoint->getSamplesPerFrame()) {
-        ALOGD("%s() mSamplesPerFrame = %d, need %d",
+        ALOGD("%s() mSamplesPerFrame = %#x, need %#x",
               __func__, getSamplesPerFrame(), endpoint->getSamplesPerFrame());
         result = AAUDIO_ERROR_OUT_OF_RANGE;
         goto error;
diff --git a/services/oboeservice/fuzzer/README.md b/services/oboeservice/fuzzer/README.md
index 00b85df..ae7af3eb 100644
--- a/services/oboeservice/fuzzer/README.md
+++ b/services/oboeservice/fuzzer/README.md
@@ -15,7 +15,7 @@
 4. InService
 5. DeviceId
 6. SampleRate
-7. SamplesPerFrame
+7. ChannelMask
 8. Direction
 9. SharingMode
 10. Usage
@@ -31,7 +31,7 @@
 | `InService`   | `bool` | Value obtained from FuzzedDataProvider |
 | `DeviceId`   | `INT32_MIN` to `INT32_MAX` | Value obtained from FuzzedDataProvider |
 | `SampleRate`   | `INT32_MIN` to `INT32_MAX` | Value obtained from FuzzedDataProvider |
-| `SamplesPerFrame` | `INT32_MIN` to `INT32_MAX` | Value obtained from FuzzedDataProvider |
+| `ChannelMask` | `AAUDIO_UNSPECIFIED`, `AAUDIO_CHANNEL_INDEX_MASK_1`, `AAUDIO_CHANNEL_INDEX_MASK_2`, `AAUDIO_CHANNEL_INDEX_MASK_3`, `AAUDIO_CHANNEL_INDEX_MASK_4`, `AAUDIO_CHANNEL_INDEX_MASK_5`, `AAUDIO_CHANNEL_INDEX_MASK_6`, `AAUDIO_CHANNEL_INDEX_MASK_7`, `AAUDIO_CHANNEL_INDEX_MASK_8`, `AAUDIO_CHANNEL_INDEX_MASK_9`, `AAUDIO_CHANNEL_INDEX_MASK_10`, `AAUDIO_CHANNEL_INDEX_MASK_11`, `AAUDIO_CHANNEL_INDEX_MASK_12`, `AAUDIO_CHANNEL_INDEX_MASK_13`, `AAUDIO_CHANNEL_INDEX_MASK_14`, `AAUDIO_CHANNEL_INDEX_MASK_15`, `AAUDIO_CHANNEL_INDEX_MASK_16`, `AAUDIO_CHANNEL_INDEX_MASK_17`, `AAUDIO_CHANNEL_INDEX_MASK_18`, `AAUDIO_CHANNEL_INDEX_MASK_19`, `AAUDIO_CHANNEL_INDEX_MASK_20`, `AAUDIO_CHANNEL_INDEX_MASK_21`, `AAUDIO_CHANNEL_INDEX_MASK_22`, `AAUDIO_CHANNEL_INDEX_MASK_23`, `AAUDIO_CHANNEL_INDEX_MASK_24`, `AAUDIO_CHANNEL_MONO`, `AAUDIO_CHANNEL_STEREO`, `AAUDIO_CHANNEL_FRONT_BACK`, `AAUDIO_CHANNEL_2POINT0POINT2`, `AAUDIO_CHANNEL_2POINT1POINT2`, `AAUDIO_CHANNEL_3POINT0POINT2`, `AAUDIO_CHANNEL_3POINT1POINT2`, `AAUDIO_CHANNEL_5POINT1`, `AAUDIO_CHANNEL_MONO`, `AAUDIO_CHANNEL_STEREO`, `AAUDIO_CHANNEL_2POINT1`, `AAUDIO_CHANNEL_TRI`, `AAUDIO_CHANNEL_TRI_BACK`, `AAUDIO_CHANNEL_3POINT1`, `AAUDIO_CHANNEL_2POINT0POINT2`, `AAUDIO_CHANNEL_2POINT1POINT2`, `AAUDIO_CHANNEL_3POINT0POINT2`, `AAUDIO_CHANNEL_3POINT1POINT2`, `AAUDIO_CHANNEL_QUAD`, `AAUDIO_CHANNEL_QUAD_SIDE`, `AAUDIO_CHANNEL_SURROUND`, `AAUDIO_CHANNEL_PENTA`, `AAUDIO_CHANNEL_5POINT1`, `AAUDIO_CHANNEL_5POINT1_SIDE`, `AAUDIO_CHANNEL_5POINT1POINT2`, `AAUDIO_CHANNEL_5POINT1POINT4`, `AAUDIO_CHANNEL_6POINT1`, `AAUDIO_CHANNEL_7POINT1`, `AAUDIO_CHANNEL_7POINT1POINT2`, `AAUDIO_CHANNEL_7POINT1POINT4`, `AAUDIO_CHANNEL_9POINT1POINT4`, `AAUDIO_CHANNEL_9POINT1POINT6` | Value obtained from FuzzedDataProvider |
 | `Direction` | `AAUDIO_DIRECTION_OUTPUT`, `AAUDIO_DIRECTION_INPUT` | Value chosen from valid values by obtaining index from FuzzedDataProvider |
 | `SharingMode` | `AAUDIO_SHARING_MODE_EXCLUSIVE`, `AAUDIO_SHARING_MODE_SHARED` | Value chosen from valid values by obtaining index from FuzzedDataProvider |
 | `Usage` | `AAUDIO_USAGE_MEDIA`, `AAUDIO_USAGE_VOICE_COMMUNICATION`, `AAUDIO_USAGE_VOICE_COMMUNICATION_SIGNALLING`, `AAUDIO_USAGE_ALARM`, `AAUDIO_USAGE_NOTIFICATION`, `AAUDIO_USAGE_NOTIFICATION_RINGTONE`, `AAUDIO_USAGE_NOTIFICATION_EVENT`, `AAUDIO_USAGE_ASSISTANCE_ACCESSIBILITY`, `AAUDIO_USAGE_ASSISTANCE_NAVIGATION_GUIDANCE`, `AAUDIO_USAGE_ASSISTANCE_SONIFICATION`, `AAUDIO_USAGE_GAME`, `AAUDIO_USAGE_ASSISTANT`, `AAUDIO_SYSTEM_USAGE_EMERGENCY`, `AAUDIO_SYSTEM_USAGE_SAFETY`, `AAUDIO_SYSTEM_USAGE_VEHICLE_STATUS`, `AAUDIO_SYSTEM_USAGE_ANNOUNCEMENT` | Value chosen from valid values by obtaining index from FuzzedDataProvider |
diff --git a/services/oboeservice/fuzzer/oboeservice_fuzzer.cpp b/services/oboeservice/fuzzer/oboeservice_fuzzer.cpp
index 4bc661c..17e8d36 100644
--- a/services/oboeservice/fuzzer/oboeservice_fuzzer.cpp
+++ b/services/oboeservice/fuzzer/oboeservice_fuzzer.cpp
@@ -68,10 +68,71 @@
     AAUDIO_INPUT_PRESET_UNPROCESSED,       AAUDIO_INPUT_PRESET_VOICE_PERFORMANCE,
 };
 
+aaudio_channel_mask_t kAAudioChannelMasks[] = {
+    AAUDIO_UNSPECIFIED,
+    AAUDIO_CHANNEL_INDEX_MASK_1,
+    AAUDIO_CHANNEL_INDEX_MASK_2,
+    AAUDIO_CHANNEL_INDEX_MASK_3,
+    AAUDIO_CHANNEL_INDEX_MASK_4,
+    AAUDIO_CHANNEL_INDEX_MASK_5,
+    AAUDIO_CHANNEL_INDEX_MASK_6,
+    AAUDIO_CHANNEL_INDEX_MASK_7,
+    AAUDIO_CHANNEL_INDEX_MASK_8,
+    AAUDIO_CHANNEL_INDEX_MASK_9,
+    AAUDIO_CHANNEL_INDEX_MASK_10,
+    AAUDIO_CHANNEL_INDEX_MASK_11,
+    AAUDIO_CHANNEL_INDEX_MASK_12,
+    AAUDIO_CHANNEL_INDEX_MASK_13,
+    AAUDIO_CHANNEL_INDEX_MASK_14,
+    AAUDIO_CHANNEL_INDEX_MASK_15,
+    AAUDIO_CHANNEL_INDEX_MASK_16,
+    AAUDIO_CHANNEL_INDEX_MASK_17,
+    AAUDIO_CHANNEL_INDEX_MASK_18,
+    AAUDIO_CHANNEL_INDEX_MASK_19,
+    AAUDIO_CHANNEL_INDEX_MASK_20,
+    AAUDIO_CHANNEL_INDEX_MASK_21,
+    AAUDIO_CHANNEL_INDEX_MASK_22,
+    AAUDIO_CHANNEL_INDEX_MASK_23,
+    AAUDIO_CHANNEL_INDEX_MASK_24,
+    AAUDIO_CHANNEL_MONO,
+    AAUDIO_CHANNEL_STEREO,
+    AAUDIO_CHANNEL_FRONT_BACK,
+    AAUDIO_CHANNEL_2POINT0POINT2,
+    AAUDIO_CHANNEL_2POINT1POINT2,
+    AAUDIO_CHANNEL_3POINT0POINT2,
+    AAUDIO_CHANNEL_3POINT1POINT2,
+    AAUDIO_CHANNEL_5POINT1,
+    AAUDIO_CHANNEL_MONO,
+    AAUDIO_CHANNEL_STEREO,
+    AAUDIO_CHANNEL_2POINT1,
+    AAUDIO_CHANNEL_TRI,
+    AAUDIO_CHANNEL_TRI_BACK,
+    AAUDIO_CHANNEL_3POINT1,
+    AAUDIO_CHANNEL_2POINT0POINT2,
+    AAUDIO_CHANNEL_2POINT1POINT2,
+    AAUDIO_CHANNEL_3POINT0POINT2,
+    AAUDIO_CHANNEL_3POINT1POINT2,
+    AAUDIO_CHANNEL_QUAD,
+    AAUDIO_CHANNEL_QUAD_SIDE,
+    AAUDIO_CHANNEL_SURROUND,
+    AAUDIO_CHANNEL_PENTA,
+    AAUDIO_CHANNEL_5POINT1,
+    AAUDIO_CHANNEL_5POINT1_SIDE,
+    AAUDIO_CHANNEL_5POINT1POINT2,
+    AAUDIO_CHANNEL_5POINT1POINT4,
+    AAUDIO_CHANNEL_6POINT1,
+    AAUDIO_CHANNEL_7POINT1,
+    AAUDIO_CHANNEL_7POINT1POINT2,
+    AAUDIO_CHANNEL_7POINT1POINT4,
+    AAUDIO_CHANNEL_9POINT1POINT4,
+    AAUDIO_CHANNEL_9POINT1POINT6,
+};
+
 const size_t kNumAAudioFormats = std::size(kAAudioFormats);
 const size_t kNumAAudioUsages = std::size(kAAudioUsages);
 const size_t kNumAAudioContentTypes = std::size(kAAudioContentTypes);
 const size_t kNumAAudioInputPresets = std::size(kAAudioInputPresets);
+const size_t kNumAAudioChannelMasks = std::size(kAAudioChannelMasks);
 
 class FuzzAAudioClient : public virtual RefBase, public AAudioServiceInterface {
    public:
@@ -305,7 +366,11 @@
 
     request.getConfiguration().setDeviceId(fdp.ConsumeIntegral<int32_t>());
     request.getConfiguration().setSampleRate(fdp.ConsumeIntegral<int32_t>());
-    request.getConfiguration().setSamplesPerFrame(fdp.ConsumeIntegral<int32_t>());
+    request.getConfiguration().setChannelMask((aaudio_channel_mask_t)(
+        fdp.ConsumeBool()
+            ? fdp.ConsumeIntegral<int32_t>()
+            : kAAudioChannelMasks[fdp.ConsumeIntegralInRange<int32_t>(
+                    0, kNumAAudioChannelMasks - 1)]));
     request.getConfiguration().setDirection(
         fdp.ConsumeBool() ? fdp.ConsumeIntegral<int32_t>()
                           : (fdp.ConsumeBool() ? AAUDIO_DIRECTION_OUTPUT : AAUDIO_DIRECTION_INPUT));