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mpegts: cache information to speed up seeking. 

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2011-10-21 21:11:28 +02:00
parent 27f7589ab1
commit db1347f66e
1 changed files with 7 additions and 4 deletions
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11
libavformat/mpegts.c
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@ -1778,10 +1778,13 @@ static int64_t mpegts_get_dts(AVFormatContext *s, int stream_index,
if(ret < 0)
return AV_NOPTS_VALUE;
av_free_packet(&pkt);
if(pkt.stream_index == stream_index && pkt.dts != AV_NOPTS_VALUE){
av_assert0(pkt.pos >= 0);
*ppos= pkt.pos;
return pkt.dts;
if(pkt.dts != AV_NOPTS_VALUE && pkt.pos >= 0){
ff_reduce_index(s, pkt.stream_index);
av_add_index_entry(s->streams[pkt.stream_index], pkt.pos, pkt.dts, 0, 0, AVINDEX_KEYFRAME /* FIXME keyframe? */);
if(pkt.stream_index == stream_index){
*ppos= pkt.pos;
return pkt.dts;
}
}
pos = pkt.pos;
}