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avformat/avformat: Improve documentation of av_stream_get_side_data
Document that it also sets the size in case the desired side data is absent (if the pointer has been supplied). Reviewed-by: Anton Khirnov <anton@khirnov.net> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
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@ -2189,7 +2189,8 @@ uint8_t *av_stream_new_side_data(AVStream *stream,
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*
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* @param stream stream
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* @param type desired side information type
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* @param size pointer for side information size to store (optional)
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* @param size If supplied, *size will be set to the size of the side data
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* or to zero if the desired side data is not present.
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* @return pointer to data if present or NULL otherwise
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*/
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uint8_t *av_stream_get_side_data(const AVStream *stream,
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