libavcodec/error_resilience.c:531: error: Uninitialized Value
  The value read from fixed[_] was never initialized.

libavcodec/error_resilience.c:531:47: 
529.                         pred_count++;
530.                     }
531.                     if (mb_y + 1<mb_height && fixed[mb_xy + mb_stride]) {
                                                   ^
532.                         mv_predictor[pred_count][0] =
533.                             s->current_picture.f.motion_val[0][mot_index + mot_stride * mot_step][0];
