On Sun, Nov 22, 2015 at 9:05 AM, Ganesh Ajjanagadde <gajjanaga...@gmail.com> wrote: > Signed-off-by: Ganesh Ajjanagadde <gajjanaga...@gmail.com> > --- > libavfilter/avf_showcqt.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/libavfilter/avf_showcqt.c b/libavfilter/avf_showcqt.c > index d6e2928..cd90c88 100644 > --- a/libavfilter/avf_showcqt.c > +++ b/libavfilter/avf_showcqt.c > @@ -170,7 +170,7 @@ static double a_weighting(void *p, double f) > static double b_weighting(void *p, double f) > { > double ret = 12200.0*12200.0 * (f*f*f); > - ret /= (f*f + 20.6*20.6) * (f*f + 12200.0*12200.0) * sqrt(f*f + > 158.5*158.5); > + ret /= (f*f + 20.6*20.6) * (f*f + 12200.0*12200.0) * hypot(f, 158.5); > return ret; > } >
I prefer sqrt in this code, because extra precision and range is not required. Thank's. _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-devel