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mpv/libaf/window.h
diego 5910188a5e Fix illegal identifier: Rename _ftype_t macro to FLOAT_TYPE.
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@26382 b3059339-0415-0410-9bf9-f77b7e298cf2
2008-04-10 10:01:54 +00:00

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
extern void af_window_boxcar(int n, FLOAT_TYPE* w);
extern void af_window_triang(int n, FLOAT_TYPE* w);
extern void af_window_hanning(int n, FLOAT_TYPE* w);
extern void af_window_hamming(int n, FLOAT_TYPE* w);
extern void af_window_blackman(int n, FLOAT_TYPE* w);
extern void af_window_flattop(int n, FLOAT_TYPE* w);
extern void af_window_kaiser(int n, FLOAT_TYPE* w, FLOAT_TYPE b);
#endif /* MPLAYER_WINDOW_H */