Fix reading out of buffer during RV30/40 deblock mask calculation

Originally committed as revision 15983 to svn://svn.ffmpeg.org/ffmpeg/trunk
16 years ago · 3e16cde430
parent 958a2b5d6b
commit 3e16cde430
1 changed files with 1 additions and 1 deletions
--- a/libavcodec/rv34.c
+++ b/libavcodec/rv34.c
@ -1100,7 +1100,7 @@ static int rv34_set_deblock_coef(RV34DecContext *r)
        for(i = 0; i < 2; i++){
            if(is_mv_diff_gt_3(motion_val + i, 1))
                vmvmask |= 0x11 << (j + i*2);
-            if(is_mv_diff_gt_3(motion_val + i, s->b8_stride))
+            if((j || s->mb_y) && is_mv_diff_gt_3(motion_val + i, s->b8_stride))
                hmvmask |= 0x03 << (j + i*2);
        }
        motion_val += s->b8_stride;