mirror of
https://github.com/mpv-player/mpv
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34 lines
1.1 KiB
C
34 lines
1.1 KiB
C
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/*=============================================================================
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//
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// This software has been released under the terms of the GNU Public
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// license. See http://www.gnu.org/copyleft/gpl.html for details.
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//
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// Copyright 2001 Anders Johansson ajh@atri.curtin.edu.au
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//
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//=============================================================================
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*/
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/* Calculates a number of window functions. The following window
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functions are currently implemented: Boxcar, Triang, Hanning,
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Hamming, Blackman, Flattop and Kaiser. In the function call n is
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the number of filter taps and w the buffer in which the filter
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coefficients will be stored.
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*/
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#if !defined _DSP_H
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# error "Never use <window.h> directly; include <dsp.h> instead"
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#endif
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#ifndef _WINDOW_H
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#define _WINDOW_H 1
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extern void boxcar(int n, _ftype_t* w);
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extern void triang(int n, _ftype_t* w);
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extern void hanning(int n, _ftype_t* w);
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extern void hamming(int n,_ftype_t* w);
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extern void blackman(int n,_ftype_t* w);
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extern void flattop(int n,_ftype_t* w);
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extern void kaiser(int n, _ftype_t* w,_ftype_t b);
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#endif
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