pullup_submit_field  684 libavfilter/vf_pullup.c     pullup_submit_field(s, b, p  );
pullup_submit_field  685 libavfilter/vf_pullup.c     pullup_submit_field(s, b, p^1);
pullup_submit_field  688 libavfilter/vf_pullup.c         pullup_submit_field(s, b, p);