libavcodec/motion_est_template.c:1058: error: Uninitialized Value
  The value read from xmax was never initialized.

libavcodec/motion_est_template.c:1058:9: 
1056.         CHECK_MV(    P_MEDIAN[0] >>shift ,    P_MEDIAN[1] >>shift)
1057.         CHECK_CLIPPED_MV((P_MEDIAN[0]>>shift)  , (P_MEDIAN[1]>>shift)-1)
1058.         CHECK_CLIPPED_MV((P_MEDIAN[0]>>shift)  , (P_MEDIAN[1]>>shift)+1)
              ^
1059.         CHECK_CLIPPED_MV((P_MEDIAN[0]>>shift)-1, (P_MEDIAN[1]>>shift)  )
1060.         CHECK_CLIPPED_MV((P_MEDIAN[0]>>shift)+1, (P_MEDIAN[1]>>shift)  )
