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mov: Fix FPE on 0 time_scale

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Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2012-03-23 04:32:16 +01:00
parent c0a99eae29
commit ac2cb27916
1 changed files with 2 additions and 1 deletions
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libavformat/mov.c
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@ -805,7 +805,8 @@ static int mov_read_mvhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
c->duration = (version == 1) ? avio_rb64(pb) : avio_rb32(pb); /* duration */
// set the AVCodecContext duration because the duration of individual tracks
// may be inaccurate
c->fc->duration = av_rescale(c->duration, AV_TIME_BASE, c->time_scale);
if (c->time_scale > 0)
c->fc->duration = av_rescale(c->duration, AV_TIME_BASE, c->time_scale);
avio_rb32(pb); /* preferred scale */
avio_rb16(pb); /* preferred volume */