75 lines
3.5 KiB
C
75 lines
3.5 KiB
C
|
/* libFLAC - Free Lossless Audio Codec library
|
||
|
|
* Copyright (C) 2006-2009 Josh Coalson
|
||
|
|
* Copyright (C) 2011-2016 Xiph.Org Foundation
|
||
|
|
*
|
||
|
|
* Redistribution and use in source and binary forms, with or without
|
||
|
|
* modification, are permitted provided that the following conditions
|
||
|
|
* are met:
|
||
|
|
*
|
||
|
|
* - Redistributions of source code must retain the above copyright
|
||
|
|
* notice, this list of conditions and the following disclaimer.
|
||
|
|
*
|
||
|
|
* - Redistributions in binary form must reproduce the above copyright
|
||
|
|
* notice, this list of conditions and the following disclaimer in the
|
||
|
|
* documentation and/or other materials provided with the distribution.
|
||
|
|
*
|
||
|
|
* - Neither the name of the Xiph.org Foundation nor the names of its
|
||
|
|
* contributors may be used to endorse or promote products derived from
|
||
|
|
* this software without specific prior written permission.
|
||
|
|
*
|
||
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||
|
|
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
||
|
|
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
|
||
|
|
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
|
||
|
|
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
||
|
|
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
||
|
|
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
|
||
|
|
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
|
||
|
|
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
||
|
|
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef FLAC__PRIVATE__WINDOW_H
|
||
|
|
#define FLAC__PRIVATE__WINDOW_H
|
||
|
|
|
||
|
|
#ifdef HAVE_CONFIG_H
|
||
|
|
#include <config.h>
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#include "private/float.h"
|
||
|
|
#include "FLAC/format.h"
|
||
|
|
|
||
|
|
#ifndef FLAC__INTEGER_ONLY_LIBRARY
|
||
|
|
|
||
|
|
/*
|
||
|
|
* FLAC__window_*()
|
||
|
|
* --------------------------------------------------------------------
|
||
|
|
* Calculates window coefficients according to different apodization
|
||
|
|
* functions.
|
||
|
|
*
|
||
|
|
* OUT window[0,L-1]
|
||
|
|
* IN L (number of points in window)
|
||
|
|
*/
|
||
|
|
void FLAC__window_bartlett(FLAC__real *window, const FLAC__int32 L);
|
||
|
|
void FLAC__window_bartlett_hann(FLAC__real *window, const FLAC__int32 L);
|
||
|
|
void FLAC__window_blackman(FLAC__real *window, const FLAC__int32 L);
|
||
|
|
void FLAC__window_blackman_harris_4term_92db_sidelobe(FLAC__real *window, const FLAC__int32 L);
|
||
|
|
void FLAC__window_connes(FLAC__real *window, const FLAC__int32 L);
|
||
|
|
void FLAC__window_flattop(FLAC__real *window, const FLAC__int32 L);
|
||
|
|
void FLAC__window_gauss(FLAC__real *window, const FLAC__int32 L, const FLAC__real stddev); /* 0.0 < stddev <= 0.5 */
|
||
|
|
void FLAC__window_hamming(FLAC__real *window, const FLAC__int32 L);
|
||
|
|
void FLAC__window_hann(FLAC__real *window, const FLAC__int32 L);
|
||
|
|
void FLAC__window_kaiser_bessel(FLAC__real *window, const FLAC__int32 L);
|
||
|
|
void FLAC__window_nuttall(FLAC__real *window, const FLAC__int32 L);
|
||
|
|
void FLAC__window_rectangle(FLAC__real *window, const FLAC__int32 L);
|
||
|
|
void FLAC__window_triangle(FLAC__real *window, const FLAC__int32 L);
|
||
|
|
void FLAC__window_tukey(FLAC__real *window, const FLAC__int32 L, const FLAC__real p);
|
||
|
|
void FLAC__window_partial_tukey(FLAC__real *window, const FLAC__int32 L, const FLAC__real p, const FLAC__real start, const FLAC__real end);
|
||
|
|
void FLAC__window_punchout_tukey(FLAC__real *window, const FLAC__int32 L, const FLAC__real p, const FLAC__real start, const FLAC__real end);
|
||
|
|
void FLAC__window_welch(FLAC__real *window, const FLAC__int32 L);
|
||
|
|
|
||
|
|
#endif /* !defined FLAC__INTEGER_ONLY_LIBRARY */
|
||
|
|
|
||
|
|
#endif
|