AVCOL_PRI_BT2020  424 libavcodec/options_table.h {"bt2020",      "BT.2020",     0, AV_OPT_TYPE_CONST, {.i64 = AVCOL_PRI_BT2020 },      INT_MIN, INT_MAX, V|E|D, "color_primaries_type"},
AVCOL_PRI_BT2020  263 libavcodec/pngenc.c         case AVCOL_PRI_BT2020: