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avdevice/alsa: add av_warn_unused_result 

This does not trigger any warnings, but adds robustness.

Reviewed-by: Nicolas George <george@nsup.org>
Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>
This commit is contained in:
Ganesh Ajjanagadde 2015-10-15 21:57:38 -04:00
parent 0418541d5d
commit 5e80a6cd31
1 changed files with 4 additions and 0 deletions
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4
libavdevice/alsa.h
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@ -74,6 +74,7 @@ typedef struct AlsaData {
*
* @return 0 if OK, AVERROR_xxx on error
*/
av_warn_unused_result
int ff_alsa_open(AVFormatContext *s, snd_pcm_stream_t mode,
unsigned int *sample_rate,
int channels, enum AVCodecID *codec_id);
@ -95,10 +96,13 @@ int ff_alsa_close(AVFormatContext *s1);
*
* @return 0 if OK, AVERROR_xxx on error
*/
av_warn_unused_result
int ff_alsa_xrun_recover(AVFormatContext *s1, int err);
av_warn_unused_result
int ff_alsa_extend_reorder_buf(AlsaData *s, int size);
av_warn_unused_result
int ff_alsa_get_device_list(AVDeviceInfoList *device_list, snd_pcm_stream_t stream_type);
#endif /* AVDEVICE_ALSA_H */