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lavf/mov: ignore ctts entries that do not apply to a least one sample

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Fixes packet pts of samples which contain ctts entries with count <= 0.
This commit is contained in:
Matthieu Bouron 2016-06-16 13:16:52 +02:00
parent 0528410e04
commit acfab2dce6
1 changed files with 12 additions and 4 deletions
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16
libavformat/mov.c
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@ -2574,7 +2574,7 @@ static int mov_read_ctts(MOVContext *c, AVIOContext *pb, MOVAtom atom)
{
AVStream *st;
MOVStreamContext *sc;
unsigned int i, entries;
unsigned int i, entries, ctts_count = 0;
if (c->fc->nb_streams < 1)
return 0;
@ -2600,8 +2600,16 @@ static int mov_read_ctts(MOVContext *c, AVIOContext *pb, MOVAtom atom)
int count =avio_rb32(pb);
int duration =avio_rb32(pb);
sc->ctts_data[i].count = count;
sc->ctts_data[i].duration= duration;
if (count <= 0) {
av_log(c->fc, AV_LOG_TRACE,
"ignoring CTTS entry with count=%d duration=%d\n",
count, duration);
continue;
}
sc->ctts_data[ctts_count].count = count;
sc->ctts_data[ctts_count].duration = duration;
ctts_count++;
av_log(c->fc, AV_LOG_TRACE, "count=%d, duration=%d\n",
count, duration);
@ -2617,7 +2625,7 @@ static int mov_read_ctts(MOVContext *c, AVIOContext *pb, MOVAtom atom)
mov_update_dts_shift(sc, duration);
}
sc->ctts_count = i;
sc->ctts_count = ctts_count;
if (pb->eof_reached)
return AVERROR_EOF;