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b frames + slices bugfix

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Originally committed as revision 1745 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2003-04-10 08:47:08 +00:00
parent 0aae3f43e4
commit 84876d3677
1 changed files with 5 additions and 0 deletions
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5
libavcodec/h263.c
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@ -2499,6 +2499,11 @@ static int mpeg4_decode_video_packet_header(MpegEncContext *s)
fprintf(stderr, "illegal mb_num in video packet (%d %d) \n", mb_num, s->mb_num);
return -1;
}
if(s->pict_type == B_TYPE){
while(s->next_picture.mbskip_table[ mb_num ]) mb_num++;
if(mb_num >= s->mb_num) return -1; // slice contains just skiped MBs which where allready decoded
}
s->mb_x= mb_num % s->mb_width;
s->mb_y= mb_num / s->mb_width;