mirror of https://github.com/mpv-player/mpv
34 lines
1.1 KiB
C
34 lines
1.1 KiB
C
/*=============================================================================
|
|
//
|
|
// This software has been released under the terms of the GNU General 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
|