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lavu/samplefmt: return the size of the allocated samples buffer at the next bump

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Make the functions av_samples_fill_arrays, av_samples_alloc, and
avcodec_fill_audio_frame return a buffer size rather than 0 in case of
success. This will be enabled at the next libavutil major bump, in order
to preserve backward compatibility.

Returning the size allows to simplify the code, avoiding a few function
calls.
This commit is contained in:
Stefano Sabatini 2012-11-25 20:23:32 +01:00
parent 329b8f85b0
commit b473c9937e
4 changed files with 19 additions and 3 deletions
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4
libavcodec/avcodec.h
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@ -4780,7 +4780,9 @@ int avcodec_default_execute2(AVCodecContext *c, int (*func)(AVCodecContext *c2,
* @param buf buffer to use for frame data
* @param buf_size size of buffer
* @param align plane size sample alignment (0 = default)
* @return 0 on success, negative error code on failure
* @return >=0 on success, negative error code on failure
* @todo return the size of the allocated frame size in case of
* success, at the next libavutil bump
*/
int avcodec_fill_audio_frame(AVFrame *frame, int nb_channels,
enum AVSampleFormat sample_fmt, const uint8_t *buf,