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mp4enc: dont store durations in trun if they are unneeded.

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2011-12-13 03:02:20 +01:00
parent 4a6855343f
commit 1f83f04609
1 changed files with 5 additions and 1 deletions
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6
libavformat/movenc.c
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@ -1447,8 +1447,12 @@ static int mov_write_trun_tag(AVIOContext *pb, MOVTrack *track)
int tr_flags=0;
int i;
tr_flags |= 0x700; //FIXME
tr_flags |= 0x600; //FIXME
for(i=track->cluster_write_index; i<track->entry; i++){
int64_t duration = i + 1 == track->entry ?
track->trackDuration - track->cluster[i].dts + track->cluster[0].dts : /* readjusting */
track->cluster[i+1].dts - track->cluster[i].dts;
if(duration != 1) tr_flags |= 0x100;
if(track->cluster[i].cts) tr_flags |= 0x800;
}