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mpeg4videodec: reset time_base.num to 0 when detecting time_base.den=0 

to avoid leaving time_base in a broken/inconsistent state
fix issue2471

Originally committed as revision 26207 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Aurelien Jacobs 2011-01-03 23:33:20 +00:00
parent ad6b2c1f6d
commit 4f18f1b089
1 changed files with 1 additions and 0 deletions
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libavcodec/mpeg4videodec.c
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@ -1575,6 +1575,7 @@ static int decode_vol_header(MpegEncContext *s, GetBitContext *gb){
s->avctx->time_base.den = get_bits(gb, 16);
if(!s->avctx->time_base.den){
av_log(s->avctx, AV_LOG_ERROR, "time_base.den==0\n");
s->avctx->time_base.num = 0;
return -1;
}