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| 1 /* libFLAC - Free Lossless Audio Codec library |
| 2 * Copyright (C) 2006,2007 Josh Coalson |
| 3 * |
| 4 * Redistribution and use in source and binary forms, with or without |
| 5 * modification, are permitted provided that the following conditions |
| 6 * are met: |
| 7 * |
| 8 * - Redistributions of source code must retain the above copyright |
| 9 * notice, this list of conditions and the following disclaimer. |
| 10 * |
| 11 * - Redistributions in binary form must reproduce the above copyright |
| 12 * notice, this list of conditions and the following disclaimer in the |
| 13 * documentation and/or other materials provided with the distribution. |
| 14 * |
| 15 * - Neither the name of the Xiph.org Foundation nor the names of its |
| 16 * contributors may be used to endorse or promote products derived from |
| 17 * this software without specific prior written permission. |
| 18 * |
| 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 22 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR |
| 23 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| 24 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| 25 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| 26 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
| 27 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
| 28 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| 29 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 30 */ |
| 31 |
| 32 #ifndef FLAC__PRIVATE__WINDOW_H |
| 33 #define FLAC__PRIVATE__WINDOW_H |
| 34 |
| 35 #ifdef HAVE_CONFIG_H |
| 36 #include <config.h> |
| 37 #endif |
| 38 |
| 39 #include "private/float.h" |
| 40 #include "FLAC/format.h" |
| 41 |
| 42 #ifndef FLAC__INTEGER_ONLY_LIBRARY |
| 43 |
| 44 /* |
| 45 * FLAC__window_*() |
| 46 * -------------------------------------------------------------------- |
| 47 * Calculates window coefficients according to different apodization |
| 48 * functions. |
| 49 * |
| 50 * OUT window[0,L-1] |
| 51 * IN L (number of points in window) |
| 52 */ |
| 53 void FLAC__window_bartlett(FLAC__real *window, const FLAC__int32 L); |
| 54 void FLAC__window_bartlett_hann(FLAC__real *window, const FLAC__int32 L); |
| 55 void FLAC__window_blackman(FLAC__real *window, const FLAC__int32 L); |
| 56 void FLAC__window_blackman_harris_4term_92db_sidelobe(FLAC__real *window, const
FLAC__int32 L); |
| 57 void FLAC__window_connes(FLAC__real *window, const FLAC__int32 L); |
| 58 void FLAC__window_flattop(FLAC__real *window, const FLAC__int32 L); |
| 59 void FLAC__window_gauss(FLAC__real *window, const FLAC__int32 L, const FLAC__rea
l stddev); /* 0.0 < stddev <= 0.5 */ |
| 60 void FLAC__window_hamming(FLAC__real *window, const FLAC__int32 L); |
| 61 void FLAC__window_hann(FLAC__real *window, const FLAC__int32 L); |
| 62 void FLAC__window_kaiser_bessel(FLAC__real *window, const FLAC__int32 L); |
| 63 void FLAC__window_nuttall(FLAC__real *window, const FLAC__int32 L); |
| 64 void FLAC__window_rectangle(FLAC__real *window, const FLAC__int32 L); |
| 65 void FLAC__window_triangle(FLAC__real *window, const FLAC__int32 L); |
| 66 void FLAC__window_tukey(FLAC__real *window, const FLAC__int32 L, const FLAC__rea
l p); |
| 67 void FLAC__window_welch(FLAC__real *window, const FLAC__int32 L); |
| 68 |
| 69 #endif /* !defined FLAC__INTEGER_ONLY_LIBRARY */ |
| 70 |
| 71 #endif |
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