F_LINEAR          140 libavfilter/avf_showspectrum.c     { "fscale", "set frequency scale", OFFSET(fscale), AV_OPT_TYPE_INT, {.i64=F_LINEAR}, 0, NB_FSCALES-1, FLAGS, "fscale" },
F_LINEAR          141 libavfilter/avf_showspectrum.c         { "lin",  "linear",      0, AV_OPT_TYPE_CONST, {.i64=F_LINEAR}, 0, 0, FLAGS, "fscale" },
F_LINEAR          753 libavfilter/avf_showspectrum.c                 float bin = s->fscale == F_LINEAR ? y : get_log_hz(y, h, inlink->sample_rate);
F_LINEAR          811 libavfilter/avf_showspectrum.c                 float bin = s->fscale == F_LINEAR ? x : get_log_hz(x, w, inlink->sample_rate);
F_LINEAR          993 libavfilter/avf_showspectrum.c     case F_LINEAR: s->plot_channel = plot_channel_lin; break;
F_LINEAR         1574 libavfilter/avf_showspectrum.c     { "fscale", "set frequency scale", OFFSET(fscale), AV_OPT_TYPE_INT, {.i64=F_LINEAR}, 0, NB_FSCALES-1, FLAGS, "fscale" },
F_LINEAR         1575 libavfilter/avf_showspectrum.c         { "lin",  "linear",      0, AV_OPT_TYPE_CONST, {.i64=F_LINEAR}, 0, 0, FLAGS, "fscale" },