HDCD_ANA_TGM     1001 libavfilter/af_hdcd.c         { "tgm", HDCD_ANA_TGM_DESC, 0, AV_OPT_TYPE_CONST, {.i64=HDCD_ANA_TGM}, 0, 0, A, "analyze_mode" },
HDCD_ANA_TGM     1218 libavfilter/af_hdcd.c         } else if (mode == HDCD_ANA_TGM && tg_mismatch > 0)