From 93c3d41bdb15e39dac0faea9c5b60f1637cd477c Mon Sep 17 00:00:00 2001 From: Eric Laurent Date: Fri, 1 Aug 2014 14:48:35 -0700 Subject: AudioSystem: add API to query audio HW sync source Add a method to query from the audio HAL the HW sync source used for a given audio session. Modify audio policy to select a direct output with HW sync when requested. Bug: 16132368. Change-Id: I03038f9188f2d389f8a5fd76a671854013a4513e --- include/media/AudioSystem.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'include/media/AudioSystem.h') diff --git a/include/media/AudioSystem.h b/include/media/AudioSystem.h index f22792f..dd63a23 100644 --- a/include/media/AudioSystem.h +++ b/include/media/AudioSystem.h @@ -149,6 +149,11 @@ public: static void acquireAudioSessionId(int audioSession, pid_t pid); static void releaseAudioSessionId(int audioSession, pid_t pid); + // Get the HW synchronization source used for an audio session. + // Return a valid source or AUDIO_HW_SYNC_INVALID if an error occurs + // or no HW sync source is used. + static audio_hw_sync_t getAudioHwSyncForSession(audio_session_t sessionId); + // types of io configuration change events received with ioConfigChanged() enum io_config_event { OUTPUT_OPENED, -- cgit v1.1