libavcodec/error_resilience.c:473: error: Uninitialized Value
  The value read from fixed[_] was never initialized.

libavcodec/error_resilience.c:473:25: 
471.                         continue;
472. 
473.                     if (fixed[mb_xy] == MV_FROZEN)
                             ^
474.                         continue;
475.                     assert(!IS_INTRA(s->current_picture.f.mb_type[mb_xy]));
