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author | Glenn Kasten <gkasten@google.com> | 2013-08-22 16:27:22 -0700 |
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committer | Glenn Kasten <gkasten@google.com> | 2013-08-29 12:05:12 -0700 |
commit | e25f9ed3469859ba0b94585549097b8b82dca8b4 (patch) | |
tree | 96c46a5b12bb83af8f0861424caf4ee1a8ffefa7 /include/hardware/audio.h | |
parent | 59caeb14a7cb7cbc74db725343922c81f0e2e3aa (diff) | |
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get_presentation_position
Change-Id: Iedc4df9018321d7273eaa862e913ad6d9a844618
Diffstat (limited to 'include/hardware/audio.h')
-rw-r--r-- | include/hardware/audio.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/include/hardware/audio.h b/include/hardware/audio.h index b0c0c0e..f841980 100644 --- a/include/hardware/audio.h +++ b/include/hardware/audio.h @@ -356,6 +356,18 @@ struct audio_stream_out { * Implementation of this function is mandatory for offloaded playback. */ int (*flush)(struct audio_stream_out* stream); + + /** + * Return the number of audio frames presented to an external observer. + * This excludes frames which have been written but are still in the pipeline. + * The count is not reset to zero when output enters standby. + * Also returns the value of CLOCK_MONOTONIC as of this presentation count. + * + * 3.0 and higher only. + */ + int (*get_presentation_position)(const struct audio_stream_out *stream, + uint64_t *frames, struct timespec *timestamp); + }; typedef struct audio_stream_out audio_stream_out_t; |