FS_LINEAR          85 libavfilter/avf_showfreqs.c     { "fscale", "set frequency scale", OFFSET(fscale), AV_OPT_TYPE_INT, {.i64=FS_LINEAR}, 0, NB_FSCALES-1, FLAGS, "fscale" },
FS_LINEAR          86 libavfilter/avf_showfreqs.c         { "lin",  "linear",              0, AV_OPT_TYPE_CONST, {.i64=FS_LINEAR}, 0, 0, FLAGS, "fscale" },
FS_LINEAR         250 libavfilter/avf_showfreqs.c     case FS_LINEAR:
FS_LINEAR         264 libavfilter/avf_showfreqs.c     case FS_LINEAR: