CHECK_UNSET_OPT   194 libavfilter/vf_delogo.c     CHECK_UNSET_OPT(x);
CHECK_UNSET_OPT   195 libavfilter/vf_delogo.c     CHECK_UNSET_OPT(y);
CHECK_UNSET_OPT   196 libavfilter/vf_delogo.c     CHECK_UNSET_OPT(w);
CHECK_UNSET_OPT   197 libavfilter/vf_delogo.c     CHECK_UNSET_OPT(h);