libavcodec/motion_est_template.c:1064: error: Uninitialized Value
  The value read from ymin was never initialized.

libavcodec/motion_est_template.c:1064:9: 
1062.                         (last_mv[ref_mv_xy][1]*ref_mv_scale + (1<<15))>>16)
1063.         CHECK_MV(P_LEFT[0]    >>shift, P_LEFT[1]    >>shift)
1064.         CHECK_MV(P_TOP[0]     >>shift, P_TOP[1]     >>shift)
              ^
1065.         CHECK_MV(P_TOPRIGHT[0]>>shift, P_TOPRIGHT[1]>>shift)
1066.     }
