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matroskadec: sanitize track time_scale before using it 

fix issue628

Originally committed as revision 15280 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Aurelien Jacobs 2008-09-09 11:23:48 +00:00
parent aa13b0fc55
commit 3fc9d7cec4
1 changed files with 2 additions and 0 deletions
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2
libavformat/matroskadec.c
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@ -1274,6 +1274,8 @@ static int matroska_read_header(AVFormatContext *s, AVFormatParameters *ap)
av_log(matroska->ctx, AV_LOG_INFO,
"Unknown/unsupported CodecID %s.\n", track->codec_id);
if (track->time_scale < 0.01)
track->time_scale = 1.0;
av_set_pts_info(st, 64, matroska->time_scale*track->time_scale, 1000*1000*1000); /* 64 bit pts in ns */
st->codec->codec_id = codec_id;