diff options
| author | dvdli <dvdli@google.com> | 2020-10-28 17:37:19 +0800 |
|---|---|---|
| committer | dvdli <dvdli@google.com> | 2020-10-28 17:37:19 +0800 |
| commit | 1e75a165df625396afd68bbc68a59c517727c3e6 (patch) | |
| tree | 3af9ed8f027f6a4b8a973560c6a281927d0542a5 /include | |
| parent | 5688a7a7b125e9bd3e3f81f8a30f3425bf71d42d (diff) | |
AOSP CL "pcm: add support to set silence_size"
https://android.googlesource.com/platform/external/tinyalsa/+/e25fe0b50ea717a9f347dcb927d396e8772e6362
commit e25fe0b50ea717a9f347dcb927d396e8772e6362
author Maneet Singh <mmaneetsingh@nvidia.com>
pcm: add support to set silence_size
Tinyalsa always set silence_size to zero. Add support to set this
pcm software parameter as required.
Bug: 20226809
Bug: 20300203
Change-Id: I25de43623dc04bf5a3ad4c6573bc2b8dad1eec5e
Diffstat (limited to 'include')
| -rw-r--r-- | include/tinyalsa/pcm.h | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/include/tinyalsa/pcm.h b/include/tinyalsa/pcm.h index 5191882..f32e11d 100644 --- a/include/tinyalsa/pcm.h +++ b/include/tinyalsa/pcm.h @@ -202,13 +202,15 @@ struct pcm_config { unsigned int period_count; /** The sample format of a PCM */ enum pcm_format format; - /* Values to use for the ALSA start, stop and silence thresholds. Setting - * any one of these values to 0 will cause the default tinyalsa values to be - * used instead. Tinyalsa defaults are as follows. + /* Values to use for the ALSA start, stop and silence thresholds, and + * silence size. Setting any one of these values to 0 will cause the + * default tinyalsa values to be used instead. + * Tinyalsa defaults are as follows. * * start_threshold : period_count * period_size * stop_threshold : period_count * period_size * silence_threshold : 0 + * silence_size : 0 */ /** The minimum number of frames required to start the PCM */ unsigned int start_threshold; @@ -216,6 +218,9 @@ struct pcm_config { unsigned int stop_threshold; /** The minimum number of frames to silence the PCM */ unsigned int silence_threshold; + /** The number of frames to overwrite the playback buffer when the playback underrun is greater + * than the silence threshold */ + unsigned int silence_size; }; /** Enumeration of a PCM's hardware parameters. |