libavcodec/error_resilience.c:504: error: Uninitialized Value
  The value read from fixed[_] was never initialized.

libavcodec/error_resilience.c:504:37: 
502.                     none_left = 0;
503. 
504.                     if (mb_x > 0 && fixed[mb_xy - 1]) {
                                         ^
505.                         mv_predictor[pred_count][0] =
506.                             s->current_picture.f.motion_val[0][mot_index - mot_step][0];
