libavcodec/motion_est_template.c:891: error: Uninitialized Value
  The value read from xmin was never initialized.

libavcodec/motion_est_template.c:891:9: 
889.         CHECK_MV(best[0]+1, best[1])
890.         CHECK_MV(best[0], best[1]-1)
891.         CHECK_MV(best[0], best[1]+1)
             ^
892.     }
893.     return dmin;
