libavcodec/motion_est_template.c:921: error: Uninitialized Value
  The value read from xmin was never initialized.

libavcodec/motion_est_template.c:921:13: 
919. 
920. //check(x + dir,y + dia_size - dir,0, a0)
921.             CHECK_MV(x + dir           , y + dia_size - dir);
                 ^
922.         }
923. 
