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>
*
* @param stream stream
* @param type desired side information type
- * @param size pointer for side information size to store (optional)
+ * @param size If supplied, *size will be set to the size of the side data
+ * or to zero if the desired side data is not present.
* @return pointer to data if present or NULL otherwise
*/
uint8_t *av_stream_get_side_data(const AVStream *stream,