AC3ENC_OPT_DOWNMIX_LORO 1746 libavcodec/ac3enc.c             case AC3ENC_OPT_DOWNMIX_LORO:  av_strlcpy(strbuf, "loro", 32);         break;
AC3ENC_OPT_DOWNMIX_LORO   52 libavcodec/ac3enc_opts_template.c     {"loro", "Lo/Ro Downmix Preferred",         0, AV_OPT_TYPE_CONST, {.i64 = AC3ENC_OPT_DOWNMIX_LORO  }, INT_MIN, INT_MAX, AC3ENC_PARAM, "dmix_mode"},