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Diffstat (limited to 'libaf/window.h')
| -rw-r--r-- | libaf/window.h | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/libaf/window.h b/libaf/window.h new file mode 100644 index 0000000000..bd747306c5 --- /dev/null +++ b/libaf/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 |