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Don't read out-of-bounds values. 

Originally committed as revision 5650 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Kostya Shishkov 2006-07-07 04:50:13 +00:00
parent 1ede1725f1
commit 928dc49d0e
1 changed files with 2 additions and 1 deletions
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3
libavcodec/vc1.c
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@ -2511,7 +2511,8 @@ static int vc1_decode_p_mb(VC1Context *v, DCTELEM block[6][64])
int intrapred = 0;
for(i=0; i<6; i++)
if(is_intra[i]) {
if(v->mb_type[0][s->block_index[i] - s->block_wrap[i]] || v->mb_type[0][s->block_index[i] - 1]) {
if(((s->mb_y || (i==2 || i==3)) && v->mb_type[0][s->block_index[i] - s->block_wrap[i]])
|| ((s->mb_x || (i==1 || i==3)) && v->mb_type[0][s->block_index[i] - 1])) {
intrapred = 1;
break;
}