libavcodec/error_resilience.c:456: error: Uninitialized Value
  The value read from fixed[_] was never initialized.

libavcodec/error_resilience.c:456:34: 
454.                     none_left=0;
455. 
456.                     if(mb_x>0 && fixed[mb_xy-1]){
                                      ^
457.                         mv_predictor[pred_count][0]= s->current_picture.f.motion_val[0][mot_index - mot_step][0];
458.                         mv_predictor[pred_count][1]= s->current_picture.f.motion_val[0][mot_index - mot_step][1];
