libavcodec/error_resilience.c:474: error: Uninitialized Value
  The value read from fixed[_] was never initialized.

libavcodec/error_resilience.c:474:44: 
472.                         pred_count++;
473.                     }
474.                     if(mb_y+1<mb_height && fixed[mb_xy+mb_stride]){
                                                ^
475.                         mv_predictor[pred_count][0]= s->current_picture.f.motion_val[0][mot_index + mot_stride*mot_step][0];
476.                         mv_predictor[pred_count][1]= s->current_picture.f.motion_val[0][mot_index + mot_stride*mot_step][1];
