From ec66bcc0e75ca839e82f3c87ebfa7cd90bc1c089 Mon Sep 17 00:00:00 2001 From: Ganesh Ajjanagadde Date: Thu, 29 Oct 2015 00:14:39 -0400 Subject: [PATCH] avfilter/avf_showspectrum: use log10 instead of log()/... This is likely more precise and conveys the intent better. Reviewed-by: Michael Niedermayer Signed-off-by: Ganesh Ajjanagadde --- 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 936db605a6..7d5c4380c6 100644 --- a/libavfilter/avf_showspectrum.c +++ b/libavfilter/avf_showspectrum.c @@ -386,7 +386,7 @@ static int plot_spectrum_column(AVFilterLink *inlink, AVFrame *insamples) a = cbrt(a); break; case LOG: - a = 1 - log(FFMAX(FFMIN(1, a), 1e-6)) / log(1e-6); // zero = -120dBFS + a = 1 + log10(FFMAX(FFMIN(1, a), 1e-6)) / 6; // zero = -120dBFS break; default: av_assert0(0);