ref: 588f58881659672f919dd91027e408f12ad3a05a
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. ** ** Software using this code must display the following message visibly in or ** on each copy of the software: ** "FAAD2 AAC/HE-AAC/HE-AACv2/DRM decoder (c) Nero AG, www.nero.com" ** in, for example, the about-box or help/startup screen. ** ** Commercial non-GPL licensing of this software is possible. ** For more info contact Nero AG through [email protected]. ** ** $Id: cfft.h,v 1.22 2006/05/07 18:09:00 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