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/media/libaudioclient/AudioSystem.cpp b/media/libaudioclient/AudioSystem.cpp
index 792be31..c7967e5 100644
--- a/media/libaudioclient/AudioSystem.cpp
+++ b/media/libaudioclient/AudioSystem.cpp
@@ -2240,6 +2240,47 @@
return OK;
}
+status_t AudioSystem::getSpatializer(const sp<media::INativeSpatializerCallback>& callback,
+ sp<media::ISpatializer>* spatializer) {
+ const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
+ if (spatializer == nullptr) {
+ return BAD_VALUE;
+ }
+ if (aps == 0) {
+ return PERMISSION_DENIED;
+ }
+ media::GetSpatializerResponse response;
+ RETURN_STATUS_IF_ERROR(statusTFromBinderStatus(
+ aps->getSpatializer(callback, &response)));
+
+ *spatializer = response.spatializer;
+ return OK;
+}
+
+status_t AudioSystem::canBeSpatialized(const audio_attributes_t *attr,
+ const audio_config_t *config,
+ const AudioDeviceTypeAddrVector &devices,
+ bool *canBeSpatialized) {
+ const sp<IAudioPolicyService>& aps = AudioSystem::get_audio_policy_service();
+ if (aps == 0) {
+ return PERMISSION_DENIED;
+ }
+ audio_attributes_t attributes = attr != nullptr ? *attr : AUDIO_ATTRIBUTES_INITIALIZER;
+ audio_config_t configuration = config != nullptr ? *config : AUDIO_CONFIG_INITIALIZER;
+
+ std::optional<media::AudioAttributesInternal> attrAidl = VALUE_OR_RETURN_STATUS(
+ legacy2aidl_audio_attributes_t_AudioAttributesInternal(attributes));
+ std::optional<media::AudioConfig> configAidl = VALUE_OR_RETURN_STATUS(
+ legacy2aidl_audio_config_t_AudioConfig(configuration));
+ std::vector<media::AudioDevice> devicesAidl = VALUE_OR_RETURN_STATUS(
+ convertContainer<std::vector<media::AudioDevice>>(devices,
+ legacy2aidl_AudioDeviceTypeAddress));
+ RETURN_STATUS_IF_ERROR(statusTFromBinderStatus(
+ aps->canBeSpatialized(attrAidl, configAidl, devicesAidl, canBeSpatialized)));
+ return OK;
+}
+
+
class CaptureStateListenerImpl : public media::BnCaptureStateListener,
public IBinder::DeathRecipient {
public: