ce188d4d |
1 | /* libFLAC - Free Lossless Audio Codec library |
2 | * Copyright (C) 2006-2009 Josh Coalson |
3 | * Copyright (C) 2011-2016 Xiph.Org Foundation |
4 | * |
5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions |
7 | * are met: |
8 | * |
9 | * - Redistributions of source code must retain the above copyright |
10 | * notice, this list of conditions and the following disclaimer. |
11 | * |
12 | * - Redistributions in binary form must reproduce the above copyright |
13 | * notice, this list of conditions and the following disclaimer in the |
14 | * documentation and/or other materials provided with the distribution. |
15 | * |
16 | * - Neither the name of the Xiph.org Foundation nor the names of its |
17 | * contributors may be used to endorse or promote products derived from |
18 | * this software without specific prior written permission. |
19 | * |
20 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
21 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
22 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
23 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR |
24 | * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
25 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
26 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
27 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
28 | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
29 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
30 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
31 | */ |
32 | |
33 | #ifndef FLAC__PRIVATE__WINDOW_H |
34 | #define FLAC__PRIVATE__WINDOW_H |
35 | |
36 | #ifdef HAVE_CONFIG_H |
37 | #include <config.h> |
38 | #endif |
39 | |
40 | #include "private/float.h" |
41 | #include "FLAC/format.h" |
42 | |
43 | #ifndef FLAC__INTEGER_ONLY_LIBRARY |
44 | |
45 | /* |
46 | * FLAC__window_*() |
47 | * -------------------------------------------------------------------- |
48 | * Calculates window coefficients according to different apodization |
49 | * functions. |
50 | * |
51 | * OUT window[0,L-1] |
52 | * IN L (number of points in window) |
53 | */ |
54 | void FLAC__window_bartlett(FLAC__real *window, const FLAC__int32 L); |
55 | void FLAC__window_bartlett_hann(FLAC__real *window, const FLAC__int32 L); |
56 | void FLAC__window_blackman(FLAC__real *window, const FLAC__int32 L); |
57 | void FLAC__window_blackman_harris_4term_92db_sidelobe(FLAC__real *window, const FLAC__int32 L); |
58 | void FLAC__window_connes(FLAC__real *window, const FLAC__int32 L); |
59 | void FLAC__window_flattop(FLAC__real *window, const FLAC__int32 L); |
60 | void FLAC__window_gauss(FLAC__real *window, const FLAC__int32 L, const FLAC__real stddev); /* 0.0 < stddev <= 0.5 */ |
61 | void FLAC__window_hamming(FLAC__real *window, const FLAC__int32 L); |
62 | void FLAC__window_hann(FLAC__real *window, const FLAC__int32 L); |
63 | void FLAC__window_kaiser_bessel(FLAC__real *window, const FLAC__int32 L); |
64 | void FLAC__window_nuttall(FLAC__real *window, const FLAC__int32 L); |
65 | void FLAC__window_rectangle(FLAC__real *window, const FLAC__int32 L); |
66 | void FLAC__window_triangle(FLAC__real *window, const FLAC__int32 L); |
67 | void FLAC__window_tukey(FLAC__real *window, const FLAC__int32 L, const FLAC__real p); |
68 | void FLAC__window_partial_tukey(FLAC__real *window, const FLAC__int32 L, const FLAC__real p, const FLAC__real start, const FLAC__real end); |
69 | void FLAC__window_punchout_tukey(FLAC__real *window, const FLAC__int32 L, const FLAC__real p, const FLAC__real start, const FLAC__real end); |
70 | void FLAC__window_welch(FLAC__real *window, const FLAC__int32 L); |
71 | |
72 | #endif /* !defined FLAC__INTEGER_ONLY_LIBRARY */ |
73 | |
74 | #endif |