videolan/ffmpeg
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fix segfault with http://sam.zoy.org/zzuf/lol-ffplay.mpg and http://sam.zoy.org/zzuf/lol-ffplay.m2v

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Originally committed as revision 7538 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2007-01-15 23:26:09 +00:00
parent c33fc0a540
commit 0e066acb62
1 changed files with 4 additions and 0 deletions
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4
libavcodec/mpeg12.c
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@ -3178,6 +3178,10 @@ static int mpeg_decode_frame(AVCodecContext *avctx,
if(mpeg_field_start(s2) < 0)
return -1;
}
if(!s2->current_picture_ptr){
av_log(avctx, AV_LOG_ERROR, "current_picture not initalized\n");
return -1;
}
if(avctx->thread_count > 1){
int threshold= (s2->mb_height*s->slice_count + avctx->thread_count/2) / avctx->thread_count;