blob: b4b8a8b577b1855dfedd3e57d652f9d7a2e6c25d
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_qmf.h,v 1.25 2007/11/01 12:33:36 menno Exp $ |
29 | **/ |
30 | |
31 | #ifndef __SBR_QMF_H__ |
32 | #define __SBR_QMF_H__ |
33 | |
34 | #ifdef __cplusplus |
35 | extern "C" { |
36 | #endif |
37 | |
38 | qmfa_info *qmfa_init(uint8_t channels); |
39 | void qmfa_end(qmfa_info *qmfa); |
40 | qmfs_info *qmfs_init(uint8_t channels); |
41 | void qmfs_end(qmfs_info *qmfs); |
42 | |
43 | void sbr_qmf_analysis_32(sbr_info *sbr, qmfa_info *qmfa, const real_t *input, |
44 | qmf_t X[MAX_NTSRHFG][64], uint8_t offset, uint8_t kx); |
45 | void sbr_qmf_synthesis_32(sbr_info *sbr, qmfs_info *qmfs, qmf_t X[MAX_NTSRHFG][64], |
46 | real_t *output); |
47 | void sbr_qmf_synthesis_64(sbr_info *sbr, qmfs_info *qmfs, qmf_t X[MAX_NTSRHFG][64], |
48 | real_t *output); |
49 | |
50 | |
51 | #ifdef __cplusplus |
52 | } |
53 | #endif |
54 | #endif |
55 | |
56 |