diff --git a/media/libaudioclient/aidl/android/media/OpenOutputRequest.aidl b/media/libaudioclient/aidl/android/media/OpenOutputRequest.aidl
index ddda8bb..73610a8 100644
--- a/media/libaudioclient/aidl/android/media/OpenOutputRequest.aidl
+++ b/media/libaudioclient/aidl/android/media/OpenOutputRequest.aidl
@@ -19,6 +19,7 @@
 import android.media.AudioPortFw;
 import android.media.audio.common.AudioConfig;
 import android.media.audio.common.AudioConfigBase;
+import android.media.audio.common.AudioAttributes;
 
 /**
  * {@hide}
@@ -32,4 +33,5 @@
     AudioPortFw device;
     /** Bitmask, indexed by AudioOutputFlag. */
     int flags;
+    AudioAttributes attributes;
 }
diff --git a/services/audioflinger/AudioFlinger.cpp b/services/audioflinger/AudioFlinger.cpp
index 3f8f98a..e59ff1e 100644
--- a/services/audioflinger/AudioFlinger.cpp
+++ b/services/audioflinger/AudioFlinger.cpp
@@ -2990,7 +2990,8 @@
                                                         audio_config_base_t *mixerConfig,
                                                         audio_devices_t deviceType,
                                                         const String8& address,
-                                                        audio_output_flags_t flags)
+                                                        audio_output_flags_t flags,
+                                                        const audio_attributes_t attributes)
 {
     AudioHwDevice *outHwDev = findSuitableHwDev_l(module, deviceType);
     if (outHwDev == NULL) {
@@ -3008,13 +3009,18 @@
 
     mHardwareStatus = AUDIO_HW_OUTPUT_OPEN;
     AudioStreamOut *outputStream = NULL;
+
+    playback_track_metadata_v7_t trackMetadata;
+    trackMetadata.base.usage = attributes.usage;
+
     status_t status = outHwDev->openOutputStream(
             &outputStream,
             *output,
             deviceType,
             flags,
             halConfig,
-            address.c_str());
+            address.c_str(),
+            {trackMetadata});
 
     mHardwareStatus = AUDIO_HW_IDLE;
 
@@ -3083,6 +3089,8 @@
             aidl2legacy_DeviceDescriptorBase(request.device));
     audio_output_flags_t flags = VALUE_OR_RETURN_STATUS(
             aidl2legacy_int32_t_audio_output_flags_t_mask(request.flags));
+    audio_attributes_t attributes = VALUE_OR_RETURN_STATUS(
+            aidl2legacy_AudioAttributes_audio_attributes_t(request.attributes));
 
     audio_io_handle_t output;
 
@@ -3105,7 +3113,7 @@
     audio_utils::lock_guard _l(mutex());
 
     const sp<IAfThreadBase> thread = openOutput_l(module, &output, &halConfig,
-            &mixerConfig, deviceType, address, flags);
+            &mixerConfig, deviceType, address, flags, attributes);
     if (thread != 0) {
         uint32_t latencyMs = 0;
         if ((flags & AUDIO_OUTPUT_FLAG_MMAP_NOIRQ) == 0) {
diff --git a/services/audioflinger/AudioFlinger.h b/services/audioflinger/AudioFlinger.h
index adec4aa..9513327 100644
--- a/services/audioflinger/AudioFlinger.h
+++ b/services/audioflinger/AudioFlinger.h
@@ -333,7 +333,8 @@
             audio_config_base_t* mixerConfig,
             audio_devices_t deviceType,
             const String8& address,
-            audio_output_flags_t flags) final REQUIRES(mutex());
+            audio_output_flags_t flags,
+            audio_attributes_t attributes) final REQUIRES(mutex());
     const DefaultKeyedVector<audio_module_handle_t, AudioHwDevice*>&
             getAudioHwDevs_l() const final REQUIRES(mutex(), hardwareMutex()) {
               return mAudioHwDevs;
diff --git a/services/audioflinger/IAfPatchPanel.h b/services/audioflinger/IAfPatchPanel.h
index 6110e4c..37dce3a 100644
--- a/services/audioflinger/IAfPatchPanel.h
+++ b/services/audioflinger/IAfPatchPanel.h
@@ -82,7 +82,8 @@
             audio_config_base_t* mixerConfig,
             audio_devices_t deviceType,
             const String8& address,
-            audio_output_flags_t flags) REQUIRES(mutex()) = 0;
+            audio_output_flags_t flags,
+            audio_attributes_t attributes) REQUIRES(mutex()) = 0;
     virtual audio_utils::mutex& mutex() const
             RETURN_CAPABILITY(audio_utils::AudioFlinger_Mutex) = 0;
     virtual const DefaultKeyedVector<audio_module_handle_t, AudioHwDevice*>&
diff --git a/services/audioflinger/PatchPanel.cpp b/services/audioflinger/PatchPanel.cpp
index f57470f..35f17c1 100644
--- a/services/audioflinger/PatchPanel.cpp
+++ b/services/audioflinger/PatchPanel.cpp
@@ -260,6 +260,7 @@
                     if (patch->sinks[0].config_mask & AUDIO_PORT_CONFIG_FLAGS) {
                         flags = patch->sinks[0].flags.output;
                     }
+                    audio_attributes_t attributes = AUDIO_ATTRIBUTES_INITIALIZER;
                     const sp<IAfThreadBase> thread = mAfPatchPanelCallback->openOutput_l(
                                                             patch->sinks[0].ext.device.hw_module,
                                                             &output,
@@ -267,7 +268,8 @@
                                                             &mixerConfig,
                                                             outputDevice,
                                                             outputDeviceAddress,
-                                                            flags);
+                                                            flags,
+                                                            attributes);
                     ALOGV("mAfPatchPanelCallback->openOutput_l() returned %p", thread.get());
                     if (thread == 0) {
                         status = NO_MEMORY;
diff --git a/services/audioflinger/datapath/AudioHwDevice.cpp b/services/audioflinger/datapath/AudioHwDevice.cpp
index 95e9ecc..5314e9e 100644
--- a/services/audioflinger/datapath/AudioHwDevice.cpp
+++ b/services/audioflinger/datapath/AudioHwDevice.cpp
@@ -43,7 +43,8 @@
         audio_devices_t deviceType,
         audio_output_flags_t flags,
         struct audio_config *config,
-        const char *address)
+        const char *address,
+        const std::vector<playback_track_metadata_v7_t>& sourceMetadata)
 {
 
     struct audio_config originalConfig = *config;
@@ -52,7 +53,7 @@
     // Try to open the HAL first using the current format.
     ALOGV("openOutputStream(), try sampleRate %d, format %#x, channelMask %#x", config->sample_rate,
             config->format, config->channel_mask);
-    status_t status = outputStream->open(handle, deviceType, config, address);
+    status_t status = outputStream->open(handle, deviceType, config, address, sourceMetadata);
 
     if (status != NO_ERROR) {
         delete outputStream;
@@ -72,7 +73,8 @@
         if (wrapperNeeded) {
             if (SPDIFEncoder::isFormatSupported(originalConfig.format)) {
                 outputStream = new SpdifStreamOut(this, flags, originalConfig.format);
-                status = outputStream->open(handle, deviceType, &originalConfig, address);
+                status = outputStream->open(handle, deviceType, &originalConfig, address,
+                                            sourceMetadata);
                 if (status != NO_ERROR) {
                     ALOGE("ERROR - openOutputStream(), SPDIF open returned %d",
                         status);
diff --git a/services/audioflinger/datapath/AudioHwDevice.h b/services/audioflinger/datapath/AudioHwDevice.h
index 80c1473..e1a9018 100644
--- a/services/audioflinger/datapath/AudioHwDevice.h
+++ b/services/audioflinger/datapath/AudioHwDevice.h
@@ -87,7 +87,8 @@
             audio_devices_t deviceType,
             audio_output_flags_t flags,
             struct audio_config *config,
-            const char *address);
+            const char *address,
+            const std::vector<playback_track_metadata_v7_t>& sourceMetadata);
 
     status_t openInputStream(
             AudioStreamIn **ppStreamIn,
diff --git a/services/audioflinger/datapath/AudioStreamOut.cpp b/services/audioflinger/datapath/AudioStreamOut.cpp
index a686ff6..c65373e 100644
--- a/services/audioflinger/datapath/AudioStreamOut.cpp
+++ b/services/audioflinger/datapath/AudioStreamOut.cpp
@@ -93,7 +93,8 @@
         audio_io_handle_t handle,
         audio_devices_t deviceType,
         struct audio_config *config,
-        const char *address)
+        const char *address,
+        const std::vector<playback_track_metadata_v7_t>& sourceMetadata)
 {
     sp<StreamOutHalInterface> outStream;
 
@@ -107,7 +108,8 @@
             customFlags,
             config,
             address,
-            &outStream);
+            &outStream,
+            sourceMetadata);
     ALOGV("AudioStreamOut::open(), HAL returned stream %p, sampleRate %d, format %#x,"
             " channelMask %#x, status %d", outStream.get(), config->sample_rate, config->format,
             config->channel_mask, status);
@@ -124,7 +126,8 @@
                 customFlags,
                 &customConfig,
                 address,
-                &outStream);
+                &outStream,
+                sourceMetadata);
         ALOGV("AudioStreamOut::open(), treat IEC61937 as PCM, status = %d", status);
     }
 
diff --git a/services/audioflinger/datapath/AudioStreamOut.h b/services/audioflinger/datapath/AudioStreamOut.h
index 2c9fb3e..2bf94a1 100644
--- a/services/audioflinger/datapath/AudioStreamOut.h
+++ b/services/audioflinger/datapath/AudioStreamOut.h
@@ -47,7 +47,8 @@
             audio_io_handle_t handle,
             audio_devices_t deviceType,
             struct audio_config *config,
-            const char *address);
+            const char *address,
+            const std::vector<playback_track_metadata_v7_t>& sourceMetadata);
 
     virtual ~AudioStreamOut();
 
diff --git a/services/audioflinger/datapath/SpdifStreamOut.cpp b/services/audioflinger/datapath/SpdifStreamOut.cpp
index 65a4eec..d3983b0 100644
--- a/services/audioflinger/datapath/SpdifStreamOut.cpp
+++ b/services/audioflinger/datapath/SpdifStreamOut.cpp
@@ -45,7 +45,8 @@
         audio_io_handle_t handle,
         audio_devices_t devices,
         struct audio_config *config,
-        const char *address)
+        const char *address,
+        const std::vector<playback_track_metadata_v7_t>& sourceMetadata)
 {
     struct audio_config customConfig = *config;
 
@@ -75,7 +76,8 @@
             handle,
             devices,
             &customConfig,
-            address);
+            address,
+            sourceMetadata);
 
     ALOGI("SpdifStreamOut::open() status = %d", status);
 
diff --git a/services/audioflinger/datapath/SpdifStreamOut.h b/services/audioflinger/datapath/SpdifStreamOut.h
index c6d27ba..1cd8f65 100644
--- a/services/audioflinger/datapath/SpdifStreamOut.h
+++ b/services/audioflinger/datapath/SpdifStreamOut.h
@@ -43,7 +43,8 @@
             audio_io_handle_t handle,
             audio_devices_t devices,
             struct audio_config *config,
-            const char *address) override;
+            const char *address,
+            const std::vector<playback_track_metadata_v7_t>& sourceMetadata) override;
 
     /**
     * Write audio buffer to driver. Returns number of bytes written, or a
diff --git a/services/audiopolicy/AudioPolicyInterface.h b/services/audiopolicy/AudioPolicyInterface.h
index deb7345..1bac259 100644
--- a/services/audiopolicy/AudioPolicyInterface.h
+++ b/services/audiopolicy/AudioPolicyInterface.h
@@ -477,7 +477,8 @@
                                 audio_config_base_t *mixerConfig,
                                 const sp<DeviceDescriptorBase>& device,
                                 uint32_t *latencyMs,
-                                audio_output_flags_t flags) = 0;
+                                audio_output_flags_t flags,
+                                audio_attributes_t audioAttributes) = 0;
     // creates a special output that is duplicated to the two outputs passed as arguments.
     // The duplication is performed by a special mixer thread in the AudioFlinger.
     virtual audio_io_handle_t openDuplicateOutput(audio_io_handle_t output1,
diff --git a/services/audiopolicy/common/managerdefinitions/include/AudioOutputDescriptor.h b/services/audiopolicy/common/managerdefinitions/include/AudioOutputDescriptor.h
index 914f3fe..bfb28a5 100644
--- a/services/audiopolicy/common/managerdefinitions/include/AudioOutputDescriptor.h
+++ b/services/audiopolicy/common/managerdefinitions/include/AudioOutputDescriptor.h
@@ -413,7 +413,8 @@
                       const DeviceVector &devices,
                       audio_stream_type_t stream,
                       audio_output_flags_t flags,
-                      audio_io_handle_t *output);
+                      audio_io_handle_t *output,
+                      audio_attributes_t attributes);
 
         // Called when a stream is about to be started
         // Note: called before setClientActive(true);
diff --git a/services/audiopolicy/common/managerdefinitions/src/AudioOutputDescriptor.cpp b/services/audiopolicy/common/managerdefinitions/src/AudioOutputDescriptor.cpp
index 0131ba0..6fef215 100644
--- a/services/audiopolicy/common/managerdefinitions/src/AudioOutputDescriptor.cpp
+++ b/services/audiopolicy/common/managerdefinitions/src/AudioOutputDescriptor.cpp
@@ -596,7 +596,8 @@
                                        const DeviceVector &devices,
                                        audio_stream_type_t stream,
                                        audio_output_flags_t flags,
-                                       audio_io_handle_t *output)
+                                       audio_io_handle_t *output,
+                                       audio_attributes_t attributes)
 {
     mDevices = devices;
     sp<DeviceDescriptor> device = devices.getDeviceForOpening();
@@ -660,7 +661,8 @@
                                                    &lMixerConfig,
                                                    device,
                                                    &mLatency,
-                                                   mFlags);
+                                                   mFlags,
+                                                   attributes);
 
     if (status == NO_ERROR) {
         LOG_ALWAYS_FATAL_IF(*output == AUDIO_IO_HANDLE_NONE,
diff --git a/services/audiopolicy/managerdefault/AudioPolicyManager.cpp b/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
index 90d7709..a2363af 100644
--- a/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
+++ b/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
@@ -1317,7 +1317,7 @@
             status = openDirectOutput(
                     *stream, session, config,
                     (audio_output_flags_t)(*flags | AUDIO_OUTPUT_FLAG_DIRECT),
-                    DeviceVector(policyMixDevice), &newOutput);
+                    DeviceVector(policyMixDevice), &newOutput, *resultAttr);
             if (status == NO_ERROR) {
                 policyDesc = mOutputs.valueFor(newOutput);
                 primaryMix->setOutput(policyDesc);
@@ -1555,7 +1555,8 @@
                                               const audio_config_t *config,
                                               audio_output_flags_t flags,
                                               const DeviceVector &devices,
-                                              audio_io_handle_t *output) {
+                                              audio_io_handle_t *output,
+                                              audio_attributes_t attributes) {
 
     *output = AUDIO_IO_HANDLE_NONE;
 
@@ -1643,7 +1644,8 @@
     releaseMsdOutputPatches(devices);
 
     status_t status =
-            outputDesc->open(config, nullptr /* mixerConfig */, devices, stream, flags, output);
+            outputDesc->open(config, nullptr /* mixerConfig */, devices, stream, flags, output,
+                             attributes);
 
     // only accept an output with the requested parameters
     if (status != NO_ERROR ||
@@ -1749,7 +1751,9 @@
 
     audio_config_t directConfig = *config;
     directConfig.channel_mask = channelMask;
-    status_t status = openDirectOutput(stream, session, &directConfig, *flags, devices, &output);
+
+    status_t status = openDirectOutput(stream, session, &directConfig, *flags, devices, &output,
+                                       *attr);
     if (status != NAME_NOT_FOUND) {
         return output;
     }
@@ -6713,10 +6717,11 @@
             sp<SwAudioOutputDescriptor> outputDesc = new SwAudioOutputDescriptor(outProfile,
                                                                                  mpClientInterface);
             audio_io_handle_t output = AUDIO_IO_HANDLE_NONE;
+            audio_attributes_t attributes = AUDIO_ATTRIBUTES_INITIALIZER;
             status_t status = outputDesc->open(nullptr /* halConfig */, nullptr /* mixerConfig */,
                                                DeviceVector(supportedDevice),
                                                AUDIO_STREAM_DEFAULT,
-                                               AUDIO_OUTPUT_FLAG_NONE, &output);
+                                               AUDIO_OUTPUT_FLAG_NONE, &output, attributes);
             if (status != NO_ERROR) {
                 ALOGW("Cannot open output stream for devices %s on hw module %s",
                       supportedDevice->toString().c_str(), hwModule->getName());
@@ -8929,8 +8934,9 @@
     }
     sp<SwAudioOutputDescriptor> desc = new SwAudioOutputDescriptor(profile, mpClientInterface);
     audio_io_handle_t output = AUDIO_IO_HANDLE_NONE;
+    audio_attributes_t attributes = AUDIO_ATTRIBUTES_INITIALIZER;
     status_t status = desc->open(halConfig, mixerConfig, devices,
-            AUDIO_STREAM_DEFAULT, flags, &output);
+            AUDIO_STREAM_DEFAULT, flags, &output, attributes);
     if (status != NO_ERROR) {
         ALOGE("%s failed to open output %d", __func__, status);
         return nullptr;
@@ -8968,7 +8974,8 @@
         config.offload_info.channel_mask = config.channel_mask;
         config.offload_info.format = config.format;
 
-        status = desc->open(&config, mixerConfig, devices, AUDIO_STREAM_DEFAULT, flags, &output);
+        status = desc->open(&config, mixerConfig, devices, AUDIO_STREAM_DEFAULT, flags, &output,
+                            attributes);
         if (status != NO_ERROR) {
             return nullptr;
         }
diff --git a/services/audiopolicy/managerdefault/AudioPolicyManager.h b/services/audiopolicy/managerdefault/AudioPolicyManager.h
index 98853ce..c0a5012 100644
--- a/services/audiopolicy/managerdefault/AudioPolicyManager.h
+++ b/services/audiopolicy/managerdefault/AudioPolicyManager.h
@@ -1155,7 +1155,8 @@
                 const audio_config_t *config,
                 audio_output_flags_t flags,
                 const DeviceVector &devices,
-                audio_io_handle_t *output);
+                audio_io_handle_t *output,
+                audio_attributes_t attributes);
 
         /**
          * @brief Queries if some kind of spatialization will be performed if the audio playback
diff --git a/services/audiopolicy/service/AudioPolicyClientImpl.cpp b/services/audiopolicy/service/AudioPolicyClientImpl.cpp
index f70dc52..22fc151 100644
--- a/services/audiopolicy/service/AudioPolicyClientImpl.cpp
+++ b/services/audiopolicy/service/AudioPolicyClientImpl.cpp
@@ -56,7 +56,8 @@
                                                            audio_config_base_t *mixerConfig,
                                                            const sp<DeviceDescriptorBase>& device,
                                                            uint32_t *latencyMs,
-                                                           audio_output_flags_t flags)
+                                                           audio_output_flags_t flags,
+                                                           audio_attributes_t attributes)
 {
     sp<IAudioFlinger> af = AudioSystem::get_audio_flinger();
     if (af == 0) {
@@ -74,6 +75,8 @@
             legacy2aidl_audio_config_base_t_AudioConfigBase(*mixerConfig, false /*isInput*/));
     request.device = VALUE_OR_RETURN_STATUS(legacy2aidl_DeviceDescriptorBase(device));
     request.flags = VALUE_OR_RETURN_STATUS(legacy2aidl_audio_output_flags_t_int32_t_mask(flags));
+    request.attributes = VALUE_OR_RETURN_STATUS(
+            legacy2aidl_audio_attributes_t_AudioAttributes(attributes));
 
     status_t status = af->openOutput(request, &response);
     if (status == OK) {
diff --git a/services/audiopolicy/service/AudioPolicyService.h b/services/audiopolicy/service/AudioPolicyService.h
index 2b4126c..92c162f 100644
--- a/services/audiopolicy/service/AudioPolicyService.h
+++ b/services/audiopolicy/service/AudioPolicyService.h
@@ -790,7 +790,8 @@
                                     audio_config_base_t *mixerConfig,
                                     const sp<DeviceDescriptorBase>& device,
                                     uint32_t *latencyMs,
-                                    audio_output_flags_t flags);
+                                    audio_output_flags_t flags,
+                                    audio_attributes_t attributes);
         // creates a special output that is duplicated to the two outputs passed as arguments. The duplication is performed by
         // a special mixer thread in the AudioFlinger.
         virtual audio_io_handle_t openDuplicateOutput(audio_io_handle_t output1, audio_io_handle_t output2);
diff --git a/services/audiopolicy/tests/AudioPolicyManagerTestClient.h b/services/audiopolicy/tests/AudioPolicyManagerTestClient.h
index d1dd1e9..45643f7 100644
--- a/services/audiopolicy/tests/AudioPolicyManagerTestClient.h
+++ b/services/audiopolicy/tests/AudioPolicyManagerTestClient.h
@@ -41,7 +41,8 @@
                         audio_config_base_t * /*mixerConfig*/,
                         const sp<DeviceDescriptorBase>& /*device*/,
                         uint32_t * /*latencyMs*/,
-                        audio_output_flags_t /*flags*/) override {
+                        audio_output_flags_t /*flags*/,
+                        audio_attributes_t /*attributes*/) override {
         if (module >= mNextModuleHandle) {
             ALOGE("%s: Module handle %d has not been allocated yet (next is %d)",
                   __func__, module, mNextModuleHandle);
diff --git a/services/audiopolicy/tests/AudioPolicyTestClient.h b/services/audiopolicy/tests/AudioPolicyTestClient.h
index c15adcb..0299160 100644
--- a/services/audiopolicy/tests/AudioPolicyTestClient.h
+++ b/services/audiopolicy/tests/AudioPolicyTestClient.h
@@ -37,7 +37,8 @@
                         audio_config_base_t* /*mixerConfig*/,
                         const sp<DeviceDescriptorBase>& /*device*/,
                         uint32_t* /*latencyMs*/,
-                        audio_output_flags_t /*flags*/) override { return NO_INIT; }
+                        audio_output_flags_t /*flags*/,
+                        audio_attributes_t /*attributes*/) override { return NO_INIT; }
     audio_io_handle_t openDuplicateOutput(audio_io_handle_t /*output1*/,
                                           audio_io_handle_t /*output2*/) override {
         return AUDIO_IO_HANDLE_NONE;
diff --git a/services/audiopolicy/tests/audiopolicymanager_tests.cpp b/services/audiopolicy/tests/audiopolicymanager_tests.cpp
index 07aad0c..f66b911 100644
--- a/services/audiopolicy/tests/audiopolicymanager_tests.cpp
+++ b/services/audiopolicy/tests/audiopolicymanager_tests.cpp
@@ -2508,10 +2508,12 @@
                         audio_config_base_t * mixerConfig,
                         const sp<DeviceDescriptorBase>& device,
                         uint32_t * latencyMs,
-                        audio_output_flags_t flags) override {
+                        audio_output_flags_t flags,
+                        audio_attributes_t attributes) override {
         return mSimulateFailure ? BAD_VALUE :
                 AudioPolicyManagerTestClient::openOutput(
-                        module, output, halConfig, mixerConfig, device, latencyMs, flags);
+                        module, output, halConfig, mixerConfig, device, latencyMs, flags,
+                        attributes);
     }
 
     status_t openInput(audio_module_handle_t module,