MODE_PC           120 libavfilter/vf_fieldmatch.c     { "mode", "set the matching mode or strategy to use", OFFSET(mode), AV_OPT_TYPE_INT, {.i64=MODE_PC_N}, MODE_PC, NB_MODE-1, FLAGS, "mode" },
MODE_PC           121 libavfilter/vf_fieldmatch.c         { "pc",      "2-way match (p/c)",                                                                    0, AV_OPT_TYPE_CONST, {.i64=MODE_PC},      INT_MIN, INT_MAX, FLAGS, "mode" },
MODE_PC           757 libavfilter/vf_fieldmatch.c         case MODE_PC: