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