MV_P_FOR           52 libavfilter/vf_codecview.c         {"pf", "forward predicted MVs of P-frames",  0, AV_OPT_TYPE_CONST, {.i64 = MV_P_FOR },  INT_MIN, INT_MAX, FLAGS, "mv"},
MV_P_FOR          206 libavfilter/vf_codecview.c             if ((direction == 0 && (s->mv & MV_P_FOR)  && frame->pict_type == AV_PICTURE_TYPE_P) ||