Simplify left_xy init

Originally committed as revision 21470 to svn://svn.ffmpeg.org/ffmpeg/trunk
15 years ago · 8652e44acd
parent 599fe45b8d
commit 8652e44acd
1 changed files with 2 additions and 4 deletions
--- a/libavcodec/h264.h
+++ b/libavcodec/h264.h
@ -1144,16 +1144,14 @@ static int fill_filter_caches(H264Context *h, int mb_type){
        const int curr_mb_field_flag     = IS_INTERLACED(mb_type);
        if(s->mb_y&1){
            if (left_mb_field_flag != curr_mb_field_flag) {
-                left_xy[0] = mb_xy - s->mb_stride - 1;
-                left_xy[1] = mb_xy                - 1;
+                left_xy[0] -= s->mb_stride;
            }
        }else{
            if(curr_mb_field_flag){
                top_xy      += s->mb_stride & (((s->current_picture.mb_type[top_xy    ]>>7)&1)-1);
            }
            if (left_mb_field_flag != curr_mb_field_flag) {
-                left_xy[0] = mb_xy                - 1;
-                left_xy[1] = mb_xy + s->mb_stride - 1;
+                left_xy[1] += s->mb_stride;
            }
        }
    }