FM_PARITY_AUTO    116 libavfilter/vf_fieldmatch.c     { "order", "specify the assumed field order", OFFSET(order), AV_OPT_TYPE_INT, {.i64=FM_PARITY_AUTO}, -1, 1, FLAGS, "order" },
FM_PARITY_AUTO    117 libavfilter/vf_fieldmatch.c         { "auto", "auto detect parity",        0, AV_OPT_TYPE_CONST, {.i64=FM_PARITY_AUTO},    INT_MIN, INT_MAX, FLAGS, "order" },
FM_PARITY_AUTO    128 libavfilter/vf_fieldmatch.c     { "field", "set the field to match from", OFFSET(field), AV_OPT_TYPE_INT, {.i64=FM_PARITY_AUTO}, -1, 1, FLAGS, "field" },
FM_PARITY_AUTO    129 libavfilter/vf_fieldmatch.c         { "auto",   "automatic (same value as 'order')",    0, AV_OPT_TYPE_CONST, {.i64=FM_PARITY_AUTO},    INT_MIN, INT_MAX, FLAGS, "field" },
FM_PARITY_AUTO    709 libavfilter/vf_fieldmatch.c     order = fm->order != FM_PARITY_AUTO ? fm->order : (in->interlaced_frame ? in->top_field_first : 1);
FM_PARITY_AUTO    710 libavfilter/vf_fieldmatch.c     field = fm->field != FM_PARITY_AUTO ? fm->field : order;