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authorMichael Niedermayer <michaelni@gmx.at>2012-07-04 22:00:50 +0200
committerMichael Niedermayer <michaelni@gmx.at>2012-07-12 20:32:03 +0200
commit018601dbf940a43dc0367f99b4953da5db9693e0 (patch)
tree659945bcf00fb23fb71c0494e44fdabbbd167228
parentc916af995d15bb1eb1329cb73fdb1c761433e601 (diff)
lavf: inject sample skip side data when requested by the demuxer
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
-rw-r--r--libavformat/avformat.h5
-rw-r--r--libavformat/utils.c8
2 files changed, 13 insertions, 0 deletions
diff --git a/libavformat/avformat.h b/libavformat/avformat.h
index a435d516c6..7dad8e27fe 100644
--- a/libavformat/avformat.h
+++ b/libavformat/avformat.h
@@ -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
diff --git a/libavformat/utils.c b/libavformat/utils.c
index b1b48feffb..39527a6bb5 100644
--- a/libavformat/utils.c
+++ b/libavformat/utils.c
@@ -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))