blob: 5ef1d8cd357026103fd89f86d0de7b239180a9e1
1 | /* |
2 | ** FAAD2 - Freeware Advanced Audio (AAC) Decoder including SBR decoding |
3 | ** Copyright (C) 2003-2005 M. Bakker, Nero AG, http://www.nero.com |
4 | ** |
5 | ** This program is free software; you can redistribute it and/or modify |
6 | ** it under the terms of the GNU General Public License as published by |
7 | ** the Free Software Foundation; either version 2 of the License, or |
8 | ** (at your option) any later version. |
9 | ** |
10 | ** This program is distributed in the hope that it will be useful, |
11 | ** but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
13 | ** GNU General Public License for more details. |
14 | ** |
15 | ** You should have received a copy of the GNU General Public License |
16 | ** along with this program; if not, write to the Free Software |
17 | ** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
18 | ** |
19 | ** Any non-GPL usage of this software or parts of this software is strictly |
20 | ** forbidden. |
21 | ** |
22 | ** The "appropriate copyright message" mentioned in section 2c of the GPLv2 |
23 | ** must read: "Code from FAAD2 is copyright (c) Nero AG, www.nero.com" |
24 | ** |
25 | ** Commercial non-GPL licensing of this software is possible. |
26 | ** For more info contact Nero AG through Mpeg4AAClicense@nero.com. |
27 | ** |
28 | ** $Id: sbr_dct.h,v 1.19 2007/11/01 12:33:34 menno Exp $ |
29 | **/ |
30 | |
31 | #ifndef __SBR_DCT_H__ |
32 | #define __SBR_DCT_H__ |
33 | |
34 | #ifdef __cplusplus |
35 | extern "C" { |
36 | #endif |
37 | |
38 | void dct4_kernel(real_t * in_real, real_t * in_imag, real_t * out_real, real_t * out_imag); |
39 | |
40 | void DCT3_32_unscaled(real_t *y, real_t *x); |
41 | void DCT4_32(real_t *y, real_t *x); |
42 | void DST4_32(real_t *y, real_t *x); |
43 | void DCT2_32_unscaled(real_t *y, real_t *x); |
44 | void DCT4_16(real_t *y, real_t *x); |
45 | void DCT2_16_unscaled(real_t *y, real_t *x); |
46 | |
47 | |
48 | #ifdef __cplusplus |
49 | } |
50 | #endif |
51 | #endif |
52 | |
53 |