mpv/libaf/window.h

34 lines
1.2 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 MPLAYER_DSP_H
# error Never use window.h directly; include dsp.h instead.
#endif
#ifndef MPLAYER_WINDOW_H
#define MPLAYER_WINDOW_H
void af_window_boxcar(int n, FLOAT_TYPE* w);
void af_window_triang(int n, FLOAT_TYPE* w);
void af_window_hanning(int n, FLOAT_TYPE* w);
void af_window_hamming(int n, FLOAT_TYPE* w);
void af_window_blackman(int n, FLOAT_TYPE* w);
void af_window_flattop(int n, FLOAT_TYPE* w);
void af_window_kaiser(int n, FLOAT_TYPE* w, FLOAT_TYPE b);
#endif /* MPLAYER_WINDOW_H */