Originally committed as revision 246 to svn://svn.ffmpeg.org/ffmpeg/trunk
1024, s->mb_width);
memsetw(&s->dc_val[2][(1) + (s->mb_y) * wrap],
1024, s->mb_width);
+
+ /* reset AC pred (set previous line to 0) */
+ wrap = s->mb_width * 2 + 2;
+ memsetw(s->ac_val[0][0] + (1 + (2 * s->mb_y) * wrap)*16,
+ 0, 2 * s->mb_width*16);
+ wrap = s->mb_width + 2;
+ memsetw(s->ac_val[1][0] + (1 + (s->mb_y) * wrap)*16,
+ 0, s->mb_width*16);
+ memsetw(s->ac_val[2][0] + (1 + (s->mb_y) * wrap)*16,
+ 0, s->mb_width*16);
s->first_slice_line = 1;
} else {