ffmpeg | branch: master | Paul B Mahol <one...@gmail.com> | Mon Dec 28 20:20:32 2015 +0100| [4020787b5bbd2ac159c860d1d1ec983837bf31bb] | committer: Paul B Mahol
avfilter/avf_showspectrum: make colors for log scale more user friendly Previosly output was almost useless because background noise, due to windowing function picked and which is not actually present in audio, had too much brightness. Now output of sine wave matches more with SoX. Signed-off-by: Paul B Mahol <one...@gmail.com> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=4020787b5bbd2ac159c860d1d1ec983837bf31bb --- libavfilter/avf_showspectrum.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavfilter/avf_showspectrum.c b/libavfilter/avf_showspectrum.c index 433400d..0e2e84b 100644 --- a/libavfilter/avf_showspectrum.c +++ b/libavfilter/avf_showspectrum.c @@ -380,7 +380,7 @@ static int plot_spectrum_column(AVFilterLink *inlink, AVFrame *insamples) a = cbrt(a); break; case LOG: - a = 1 + log10(FFMAX(FFMIN(1, a), 1e-6)) / 6; // zero = -120dBFS + a = 1 + log10(FFMAX(FFMIN(1, a), 1e-6)) / 5; // zero = -120dBFS break; default: av_assert0(0); _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog
