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Replace invalid Theora frame rate by 25 FPS.

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Avoids division by 0 due to e.g. time_base denominator being 0.

Originally committed as revision 19334 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Reimar Döffinger 2009-07-03 11:31:09 +00:00
parent 3dcddf82ed
commit 11d058b7b3
1 changed files with 5 additions and 0 deletions
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5
libavformat/oggparsetheora.c
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@ -86,6 +86,11 @@ theora_header (AVFormatContext * s, int idx)
}
st->codec->time_base.den = get_bits_long(&gb, 32);
st->codec->time_base.num = get_bits_long(&gb, 32);
if (!(st->codec->time_base.num > 0 && st->codec->time_base.den > 0)) {
av_log(s, AV_LOG_WARNING, "Invalid time base in theora stream, assuming 25 FPS\n");
st->codec->time_base.num = 1;
st->codec->time_base.den = 25;
}
st->time_base = st->codec->time_base;
st->sample_aspect_ratio.num = get_bits_long(&gb, 24);