YADIF_PARITY_TFF  381 libavfilter/vf_bwdif.c     CONST("tff",  "assume top field first",    YADIF_PARITY_TFF,  "parity"),
YADIF_PARITY_TFF  206 libavfilter/yadif_common.c     CONST("tff",  "assume top field first",    YADIF_PARITY_TFF,  "parity"),