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avformat/matroskadec: check out_samplerate before using it in av_rescale()

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Prevent assertion failure with damaged input

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 338f8b2eaf36f078eb5cc26ac10e651dc4c48243)
This commit is contained in:
Michael Niedermayer 2013-08-18 02:20:54 +02:00 committed by James Almer
parent c447047117
commit 97f739ac9b
1 changed files with 2 additions and 0 deletions
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libavformat/matroskadec.c
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@ -1614,6 +1614,8 @@ static int matroska_read_header(AVFormatContext *s)
avio_wl16(&b, 1);
avio_wl16(&b, track->audio.channels);
avio_wl16(&b, track->audio.bitdepth);
if (track->audio.out_samplerate < 0 || track->audio.out_samplerate > INT_MAX)
return AVERROR_INVALIDDATA;
avio_wl32(&b, track->audio.out_samplerate);
avio_wl32(&b, av_rescale((matroska->duration * matroska->time_scale), track->audio.out_samplerate, AV_TIME_BASE * 1000));
} else if (codec_id == CODEC_ID_RV10 || codec_id == CODEC_ID_RV20 ||