AudioSystem: add APIs to control HAL stream latency mode
Add API to AudioSystem and AudioFlinger to discover and control
the latency modes supported by audio HAL streams
Bug: 218273231
Test: make
Change-Id: I84c2325301cc7a4cf058fa076d0645ede877b54f
diff --git a/services/audioflinger/AudioFlinger.h b/services/audioflinger/AudioFlinger.h
index 8e4383c..fc4c807 100644
--- a/services/audioflinger/AudioFlinger.h
+++ b/services/audioflinger/AudioFlinger.h
@@ -293,6 +293,12 @@
virtual status_t setDeviceConnectedState(const struct audio_port_v7 *port, bool connected);
+ virtual status_t setRequestedLatencyMode(
+ audio_io_handle_t output, audio_latency_mode_t mode);
+
+ virtual status_t getSupportedLatencyModes(audio_io_handle_t output,
+ std::vector<audio_latency_mode_t>* modes);
+
status_t onTransactWrapper(TransactionCode code, const Parcel& data, uint32_t flags,
const std::function<status_t()>& delegate) override;
@@ -764,6 +770,8 @@
void ioConfigChanged(audio_io_config_event_t event,
const sp<AudioIoDescriptor>& ioDesc,
pid_t pid = 0);
+ void onSupportedLatencyModesChanged(
+ audio_io_handle_t output, const std::vector<audio_latency_mode_t>& modes);
// Allocate an audio_unique_id_t.
// Specific types are audio_io_handle_t, audio_session_t, effect ID (int),