ref: 881b5e263f25a8a8b714e83407fc2c9dab407e40
dir: /libfaad/cfft.h/
/* ** FAAD2 - Freeware Advanced Audio (AAC) Decoder including SBR decoding ** Copyright (C) 2003-2005 M. Bakker, Nero AG, http://www.nero.com ** ** This program is free software; you can redistribute it and/or modify ** it under the terms of the GNU General Public License as published by ** the Free Software Foundation; either version 2 of the License, or ** (at your option) any later version. ** ** This program is distributed in the hope that it will be useful, ** but WITHOUT ANY WARRANTY; without even the implied warranty of ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ** GNU General Public License for more details. ** ** You should have received a copy of the GNU General Public License ** along with this program; if not, write to the Free Software ** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. ** ** Any non-GPL usage of this software or parts of this software is strictly ** forbidden. ** ** The "appropriate copyright message" mentioned in section 2c of the GPLv2 ** must read: "Code from FAAD2 is copyright (c) Nero AG, www.nero.com" ** ** Commercial non-GPL licensing of this software is possible. ** For more info contact Nero AG through [email protected]. ** ** $Id: cfft.h,v 1.24 2007/11/01 12:33:29 menno Exp $ **/ #ifndef __CFFT_H__ #define __CFFT_H__ #ifdef __cplusplus extern "C" { #endif typedef struct { uint16_t n; uint16_t ifac[15]; complex_t *work; complex_t *tab; } cfft_info; void cfftf(cfft_info *cfft, complex_t *c); void cfftb(cfft_info *cfft, complex_t *c); cfft_info *cffti(uint16_t n); void cfftu(cfft_info *cfft); #ifdef __cplusplus } #endif #endif