NM_VELVET          73 libavfilter/asrc_anoisesrc.c     {     "velvet",   0,                  0,                    AV_OPT_TYPE_CONST,     {.i64 = NM_VELVET},  0,  0,          FLAGS, "color" },
NM_VELVET         196 libavfilter/asrc_anoisesrc.c     case NM_VELVET: s->filter = velvet_filter; break;