From aa32042a50f2cbe0ff9d339948cb4712f5cc3d6e Mon Sep 17 00:00:00 2001 From: Jean-Marc Valin Date: Fri, 15 Jul 2016 14:29:16 -0400 Subject: Slightly increase the safety margin for opus_pcm_soft_clip() No values outside of +/-1 detected now. --- src/opus.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/opus.c b/src/opus.c index 2b47cdac..f76f125c 100644 --- a/src/opus.c +++ b/src/opus.c @@ -104,10 +104,10 @@ OPUS_EXPORT void opus_pcm_soft_clip(float *_x, int N, int C, float *declip_mem) /* Compute a such that maxval + a*maxval^2 = 1 */ a=(maxval-1)/(maxval*maxval); - /* Slightly boost "a" by 2^-24. This is just enough to ensure -ffast-math + /* Slightly boost "a" by 2^-22. This is just enough to ensure -ffast-math does not cause output values larger than +/-1, but small enough not to matter even for 24-bit output. */ - a += a*6e-8; + a += a*2.4e-7; if (x[i*C]>0) a = -a; /* Apply soft clipping */ -- cgit v1.2.3