libavcodec/error_resilience.c:448: error: Uninitialized Value
  The value read from fixed[_] was never initialized.

libavcodec/error_resilience.c:448:44: 
446.                         pred_count++;
447.                     }
448.                     if(mb_y+1<mb_height && fixed[mb_xy+mb_stride]){
                                                ^
449.                         mv_predictor[pred_count][0]= s->current_picture.motion_val[0][mot_index + mot_stride*mot_step][0];
450.                         mv_predictor[pred_count][1]= s->current_picture.motion_val[0][mot_index + mot_stride*mot_step][1];
