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lavf: inject sample skip side data when requested by the demuxer 

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2012-07-04 22:00:50 +02:00
parent c916af995d
commit 018601dbf9
2 changed files with 13 additions and 0 deletions
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5
libavformat/avformat.h
View File

@ -805,6 +805,11 @@ typedef struct AVStream {
* should be discarded.
*/
int skip_to_keyframe;
/**
* Number of samples to skip at the start of the frame decoded from the next packet.
*/
int skip_samples;
} AVStream;
#define AV_PROGRAM_RUNNING 1

8
libavformat/utils.c
View File

@ -1450,6 +1450,14 @@ int av_read_frame(AVFormatContext *s, AVPacket *pkt)
}
return_packet:
if(s->streams[pkt->stream_index]->skip_samples) {
uint8_t *p = av_packet_new_side_data(pkt, AV_PKT_DATA_SKIP_SAMPLES, 10);
AV_WL32(p, s->streams[pkt->stream_index]->skip_samples);
av_log(s, AV_LOG_DEBUG, "demuxer injecting skip %d\n", s->streams[pkt->stream_index]->skip_samples);
s->streams[pkt->stream_index]->skip_samples = 0;
}
if (is_relative(pkt->dts))
pkt->dts -= RELATIVE_TS_BASE;
if (is_relative(pkt->pts))