libavcodec/error_resilience.c:660: error: Uninitialized Value
  The value read from fixed[_] was never initialized.

libavcodec/error_resilience.c:660:53: 
658.                                 score += FFABS(src[k - s->linesize] - src[k]);
659.                         }
660.                         if (mb_y + 1 < mb_height && fixed[mb_xy + mb_stride]) {
                                                         ^
661.                             int k;
662.                             for (k = 0; k < 16; k++)
