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[mplayer/glamo.git] / libfaad2 / cfft.h
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1 /*
2 ** FAAD2 - Freeware Advanced Audio (AAC) Decoder including SBR decoding
3 ** Copyright (C) 2003-2004 M. Bakker, Ahead Software 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.
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.
19 ** Any non-GPL usage of this software or parts of this software is strictly
20 ** forbidden.
22 ** Commercial non-GPL licensing of this software is possible.
23 ** For more info contact Ahead Software through Mpeg4AAClicense@nero.com.
25 ** $Id: cfft.h,v 1.20 2004/09/08 09:43:11 gcp Exp $
26 **/
28 #ifndef __CFFT_H__
29 #define __CFFT_H__
31 #ifdef __cplusplus
32 extern "C" {
33 #endif
35 typedef struct
37 uint16_t n;
38 uint16_t ifac[15];
39 complex_t *work;
40 complex_t *tab;
41 } cfft_info;
44 void cfftf(cfft_info *cfft, complex_t *c);
45 void cfftb(cfft_info *cfft, complex_t *c);
46 cfft_info *cffti(uint16_t n);
47 void cfftu(cfft_info *cfft);
50 #ifdef __cplusplus
52 #endif
53 #endif