libavcodec/error_resilience.c:479: error: Uninitialized Value
  The value read from fixed[_] was never initialized.

libavcodec/error_resilience.c:479:49: 
477. 
478.                     j = 0;
479.                     if (mb_x > 0             && fixed[mb_xy - 1]         == MV_FROZEN)
                                                     ^
480.                         j = 1;
481.                     if (mb_x + 1 < mb_width  && fixed[mb_xy + 1]         == MV_FROZEN)
