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avformat/utils: Add ff_stream_encode_params_copy()

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Signed-off-by: Jan Sebechlebsky <sebechlebskyjan@gmail.com>
Signed-off-by: Marton Balint <cus@passwd.hu>
This commit is contained in:
Jan Sebechlebsky 2016-07-13 17:00:11 +02:00 committed by Marton Balint
parent d52dd768a3
commit 1732d89403
2 changed files with 66 additions and 0 deletions
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9
libavformat/internal.h
View File

@ -490,6 +490,15 @@ int ff_generate_avci_extradata(AVStream *st);
*/
int ff_stream_add_bitstream_filter(AVStream *st, const char *name, const char *args);
/**
* Copy encoding parameters from source to destination stream
*
* @param dst pointer to destination AVStream
* @param src pointer to source AVStream
* @return >=0 on success, AVERROR code on error
*/
int ff_stream_encode_params_copy(AVStream *dst, const AVStream *src);
/**
* Wrap errno on rename() error.
*

57
libavformat/utils.c
View File

@ -3951,6 +3951,63 @@ int av_read_pause(AVFormatContext *s)
return AVERROR(ENOSYS);
}
int ff_stream_encode_params_copy(AVStream *dst, const AVStream *src)
{
int ret, i;
dst->id = src->id;
dst->time_base = src->time_base;
dst->nb_frames = src->nb_frames;
dst->disposition = src->disposition;
dst->sample_aspect_ratio = src->sample_aspect_ratio;
dst->avg_frame_rate = src->avg_frame_rate;
dst->r_frame_rate = src->r_frame_rate;
av_dict_free(&dst->metadata);
ret = av_dict_copy(&dst->metadata, src->metadata, 0);
if (ret < 0)
return ret;
ret = avcodec_parameters_copy(dst->codecpar, src->codecpar);
if (ret < 0)
return ret;
/* Free existing side data*/
for (i = 0; i < dst->nb_side_data; i++)
av_free(dst->side_data[i].data);
av_freep(&dst->side_data);
dst->nb_side_data = 0;
/* Copy side data if present */
if (src->nb_side_data) {
dst->side_data = av_mallocz_array(src->nb_side_data,
sizeof(AVPacketSideData));
if (!dst->side_data)
return AVERROR(ENOMEM);
dst->nb_side_data = src->nb_side_data;
for (i = 0; i < src->nb_side_data; i++) {
uint8_t *data = av_memdup(src->side_data[i].data,
src->side_data[i].size);
if (!data)
return AVERROR(ENOMEM);
dst->side_data[i].type = src->side_data[i].type;
dst->side_data[i].size = src->side_data[i].size;
dst->side_data[i].data = data;
}
}
av_freep(&dst->recommended_encoder_configuration);
if (src->recommended_encoder_configuration) {
const char *conf_str = src->recommended_encoder_configuration;
dst->recommended_encoder_configuration = av_strdup(conf_str);
if (!dst->recommended_encoder_configuration)
return AVERROR(ENOMEM);
}
return 0;
}
static void free_stream(AVStream **pst)
{
AVStream *st = *pst;