audio policy: add Spatializer effect control
Add APIs to discover support for audio spatialization function and control a
spatializer output mixer and effect creation to Audio Policy Service.
When supported, a system service can retrieve a ISpatializer
interface to query supported features and set a spatialization mode.
When spatialization is enabled, the corresponding specialized output mixer is
created and the effect applied.
The audio policy manager will attach clients which audio attributes and
format qualifying for spatialization to the specialized output mixer.
Bug: 188502620
Test: make
Change-Id: Ie2734fb9bb3ef9b945431c6c9bd110b1434a79cd
Merged-In: Ie2734fb9bb3ef9b945431c6c9bd110b1434a79cd
diff --git a/services/audiopolicy/service/AudioPolicyInterfaceImpl.cpp b/services/audiopolicy/service/AudioPolicyInterfaceImpl.cpp
index 77223b6..58359be 100644
--- a/services/audiopolicy/service/AudioPolicyInterfaceImpl.cpp
+++ b/services/audiopolicy/service/AudioPolicyInterfaceImpl.cpp
@@ -2205,4 +2205,41 @@
return Status::ok();
}
+Status AudioPolicyService::getSpatializer(
+ const sp<media::INativeSpatializerCallback>& callback,
+ media::GetSpatializerResponse* _aidl_return) {
+ _aidl_return->spatializer = nullptr;
+ LOG_ALWAYS_FATAL_IF(callback == nullptr);
+ RETURN_IF_BINDER_ERROR(binderStatusFromStatusT(mSpatializer->registerCallback(callback)));
+ _aidl_return->spatializer = mSpatializer;
+ return Status::ok();
+}
+
+Status AudioPolicyService::canBeSpatialized(
+ const std::optional<media::AudioAttributesInternal>& attrAidl,
+ const std::optional<media::AudioConfig>& configAidl,
+ const std::vector<media::AudioDevice>& devicesAidl,
+ bool* _aidl_return) {
+ if (mAudioPolicyManager == nullptr) {
+ return binderStatusFromStatusT(NO_INIT);
+ }
+ audio_attributes_t attr = AUDIO_ATTRIBUTES_INITIALIZER;
+ if (attrAidl.has_value()) {
+ attr = VALUE_OR_RETURN_BINDER_STATUS(
+ aidl2legacy_AudioAttributesInternal_audio_attributes_t(attrAidl.value()));
+ }
+ audio_config_t config = AUDIO_CONFIG_INITIALIZER;
+ if (configAidl.has_value()) {
+ config = VALUE_OR_RETURN_BINDER_STATUS(
+ aidl2legacy_AudioConfig_audio_config_t(configAidl.value()));
+ }
+ AudioDeviceTypeAddrVector devices = VALUE_OR_RETURN_BINDER_STATUS(
+ convertContainer<AudioDeviceTypeAddrVector>(devicesAidl,
+ aidl2legacy_AudioDeviceTypeAddress));
+
+ Mutex::Autolock _l(mLock);
+ *_aidl_return = mAudioPolicyManager->canBeSpatialized(&attr, &config, devices);
+ return Status::ok();
+}
+
} // namespace android