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| author | Michael Niedermayer <michaelni@gmx.at> | 2008-08-21 21:56:48 +0000 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2008-08-21 21:56:48 +0000 |
| commit | 7dd3e95a041235a32c485d0ffbb1f4820a01dffb (patch) | |
| tree | 634aed9a3318efee7f27de82569dbde425aee207 /libavcodec/acelp_filters.h | |
| parent | ba05497de5bfaa851196d298c0dcca7d93e9bba1 (diff) | |
| download | ffmpeg-7dd3e95a041235a32c485d0ffbb1f4820a01dffb.tar.gz | |
Mention the fixed-point scale of the FIR filter coefficients.
Originally committed as revision 14888 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/acelp_filters.h')
| -rw-r--r-- | libavcodec/acelp_filters.h | 3 |
1 files changed, 2 insertions, 1 deletions
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. |