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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>
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@ -74,6 +74,7 @@ typedef struct AlsaData {
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*
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* @return 0 if OK, AVERROR_xxx on error
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*/
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av_warn_unused_result
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int ff_alsa_open(AVFormatContext *s, snd_pcm_stream_t mode,
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unsigned int *sample_rate,
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int channels, enum AVCodecID *codec_id);
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@ -95,10 +96,13 @@ int ff_alsa_close(AVFormatContext *s1);
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*
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* @return 0 if OK, AVERROR_xxx on error
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*/
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av_warn_unused_result
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int ff_alsa_xrun_recover(AVFormatContext *s1, int err);
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av_warn_unused_result
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int ff_alsa_extend_reorder_buf(AlsaData *s, int size);
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av_warn_unused_result
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int ff_alsa_get_device_list(AVDeviceInfoList *device_list, snd_pcm_stream_t stream_type);
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#endif /* AVDEVICE_ALSA_H */
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