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frame: add a function for removing side data from a frame

This commit is contained in:
Anton Khirnov 2014-02-19 20:11:21 +01:00
parent 59444c76e6
commit d161ae0a37
4 changed files with 27 additions and 1 deletions
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4
doc/APIchanges
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@ -13,6 +13,10 @@ libavutil: 2013-12-xx
API changes, most recent first:
2014-02-xx - xxxxxxx - lavu 53.08.0 - frame.h
Add av_frame_remove_side_data() for removing a single side data
instance from a frame.
2014-02-xx - xxxxxxx - lavu 53.07.0 - frame.h, replaygain.h
Add AV_FRAME_DATA_REPLAYGAIN for exporting replaygain tags.
Add a new header replaygain.h with the AVReplayGain struct.

16
libavutil/frame.c
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@ -526,3 +526,19 @@ int av_frame_copy(AVFrame *dst, const AVFrame *src)
return AVERROR(EINVAL);
}
void av_frame_remove_side_data(AVFrame *frame, enum AVFrameSideDataType type)
{
int i;
for (i = 0; i < frame->nb_side_data; i++) {
AVFrameSideData *sd = frame->side_data[i];
if (sd->type == type) {
av_freep(&sd->data);
av_dict_free(&sd->metadata);
av_freep(&frame->side_data[i]);
frame->side_data[i] = frame->side_data[frame->nb_side_data - 1];
frame->nb_side_data--;
}
}
}

6
libavutil/frame.h
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@ -562,6 +562,12 @@ AVFrameSideData *av_frame_new_side_data(AVFrame *frame,
AVFrameSideData *av_frame_get_side_data(const AVFrame *frame,
enum AVFrameSideDataType type);
/**
* If side data of the supplied type exists in the frame, free it and remove it
* from the frame.
*/
void av_frame_remove_side_data(AVFrame *frame, enum AVFrameSideDataType type);
/**
* @}
*/

2
libavutil/version.h
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@ -54,7 +54,7 @@
*/
#define LIBAVUTIL_VERSION_MAJOR 53
#define LIBAVUTIL_VERSION_MINOR 7
#define LIBAVUTIL_VERSION_MINOR 8
#define LIBAVUTIL_VERSION_MICRO 0
#define LIBAVUTIL_VERSION_INT AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \