init_interlaced_ref  701 libavcodec/motion_est.c     init_interlaced_ref(s, ref_index);
init_interlaced_ref  856 libavcodec/motion_est.c             init_interlaced_ref(s, 0);
init_interlaced_ref  884 libavcodec/motion_est.c             init_interlaced_ref(s, 2);