Send the Audio Usage down from AudioPolicyManager

Store audioUsgae in AudioAttributes and send it down to
AudioFlinger::openOutput_l. Then extract audioUsage and store in
SourceMetadata to pass it down to the HAL layer.

Bug: 297875432
Test: Add a fake audio usage in attribute in AudioFlinger::openoutput(), then test by checking the log message. The fake usage does get pass down to the DeviceHalAidl::openOutputStream().
Flag: EXEMPT bugfix
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:f6e304f9c5066ae829a91dcd98bc6045a13a8b30)
Merged-In: Ic9a739f1de50485304187be5c4b603955afabbf8
Change-Id: Ic9a739f1de50485304187be5c4b603955afabbf8
diff --git a/services/audioflinger/AudioFlinger.cpp b/services/audioflinger/AudioFlinger.cpp
index 3b71758..ca4c294 100644
--- a/services/audioflinger/AudioFlinger.cpp
+++ b/services/audioflinger/AudioFlinger.cpp
@@ -2923,7 +2923,8 @@
                                                         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) {
@@ -2941,13 +2942,18 @@
 
     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;
 
@@ -3016,6 +3022,8 @@
             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;
 
@@ -3038,7 +3046,7 @@
     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 f61fdce..f5ec5f8 100644
--- a/services/audioflinger/AudioFlinger.h
+++ b/services/audioflinger/AudioFlinger.h
@@ -332,7 +332,8 @@
             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