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Commit 9aec362e authored by Eric Laurent's avatar Eric Laurent
Browse files

audio policy: add deep audio buffering flag. 

Add a value in audio policy flags to indicate an output
stream providing deep audio PCM buffers. Such an output
helps reducing the power consumption at the expense of audio latency.

Stagefright will indicate a preference for such an output when playing music
only (no video) and the audio duration is more than a given threshold.

Change-Id: I0e6a9f5746a22d2bfea2b21dd182489a34a4b528
parent c28cbb2c

include/system/audio.h

+11 −10
Original line number Diff line number Diff line
@@ -361,6 +361,7 @@ typedef enum { 
                                        // controls related to voice calls.

    AUDIO_OUTPUT_FLAG_FAST = 0x4,       // output supports "fast tracks",

                                        // defined elsewhere

    AUDIO_OUTPUT_FLAG_DEEP_BUFFER = 0x8 // use deep audio buffers

} audio_output_flags_t;



static inline bool audio_is_output_device(audio_devices_t device)