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mov: Discard invalid CTTS.

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Fixes Ticket385

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2012-03-08 07:10:57 +01:00
parent 15d75dabee
commit 4093220029
1 changed files with 8 additions and 0 deletions
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8
libavformat/mov.c
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@ -1774,6 +1774,14 @@ static int mov_read_ctts(MOVContext *c, AVIOContext *pb, MOVAtom atom)
sc->ctts_data[i].count = count;
sc->ctts_data[i].duration= duration;
if (FFABS(duration) > (1<<28) && i+2<entries) {
av_log(c->fc, AV_LOG_WARNING, "CTTS invalid\n");
av_freep(&sc->ctts_data);
sc->ctts_count = 0;
return 0;
}
if (duration < 0 && i+2<entries)
sc->dts_shift = FFMAX(sc->dts_shift, -duration);
}