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| author | James Courtier-Dutton <jcdutton@users.sourceforge.net> | 2004-05-15 18:22:26 +0000 |
|---|---|---|
| committer | James Courtier-Dutton <jcdutton@users.sourceforge.net> | 2004-05-15 18:22:26 +0000 |
| commit | 1861b5d7bdf9fb669633b9ee471f6c57a5633b83 (patch) | |
| tree | b0092eaa4751d8f380375e8442c6728b23f6d447 /src/post/audio/window.h | |
| parent | ca40c07778b4b6ad3814225fed05006f48c8477e (diff) | |
| download | xine-lib-1861b5d7bdf9fb669633b9ee471f6c57a5633b83.tar.gz xine-lib-1861b5d7bdf9fb669633b9ee471f6c57a5633b83.tar.bz2 | |
Port subwoofer filter from mplayer.
CVS patchset: 6543
CVS date: 2004/05/15 18:22:26
Diffstat (limited to 'src/post/audio/window.h')
| -rw-r--r-- | src/post/audio/window.h | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/src/post/audio/window.h b/src/post/audio/window.h new file mode 100644 index 000000000..bd747306c --- /dev/null +++ b/src/post/audio/window.h @@ -0,0 +1,33 @@ +/*============================================================================= +// +// This software has been released under the terms of the GNU Public +// license. See http://www.gnu.org/copyleft/gpl.html for details. +// +// Copyright 2001 Anders Johansson ajh@atri.curtin.edu.au +// +//============================================================================= +*/ + +/* Calculates a number of window functions. The following window + functions are currently implemented: Boxcar, Triang, Hanning, + Hamming, Blackman, Flattop and Kaiser. In the function call n is + the number of filter taps and w the buffer in which the filter + coefficients will be stored. +*/ + +#if !defined _DSP_H +# error "Never use <window.h> directly; include <dsp.h> instead" +#endif + +#ifndef _WINDOW_H +#define _WINDOW_H 1 + +extern void boxcar(int n, _ftype_t* w); +extern void triang(int n, _ftype_t* w); +extern void hanning(int n, _ftype_t* w); +extern void hamming(int n,_ftype_t* w); +extern void blackman(int n,_ftype_t* w); +extern void flattop(int n,_ftype_t* w); +extern void kaiser(int n, _ftype_t* w,_ftype_t b); + +#endif |