From 7dd3e95a041235a32c485d0ffbb1f4820a01dffb Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Thu, 21 Aug 2008 21:56:48 +0000 Subject: Mention the fixed-point scale of the FIR filter coefficients. Originally committed as revision 14888 to svn://svn.ffmpeg.org/ffmpeg/trunk --- libavcodec/acelp_filters.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'libavcodec/acelp_filters.h') diff --git a/libavcodec/acelp_filters.h b/libavcodec/acelp_filters.h index d48e46be0b..dc1a4eb588 100644 --- a/libavcodec/acelp_filters.h +++ b/libavcodec/acelp_filters.h @@ -28,7 +28,8 @@ /** * low-pass Finite Impulse Response filter coefficients. * - * Hamming windowed sinc filter with cutoff freq 3/40 of the sampling freq. + * Hamming windowed sinc filter with cutoff freq 3/40 of the sampling freq, + * the coefficients are scaled by 2^15. * This array only contains the right half of the filter. * This filter is likely identical to the one used in G.729, though this * could not be determined from the original comments with certainity. -- cgit v1.2.3