libavcodec/error_resilience.c:544: error: Uninitialized Value
  The value read from fixed[_] was never initialized.

libavcodec/error_resilience.c:544:16: 
542.         for(i=0; i<s->mb_num; i++){
543.             int mb_xy= s->mb_index2xy[i];
544.             if(fixed[mb_xy])
                    ^
545.                 fixed[mb_xy]=MV_FROZEN;
546.         }
