ref: 4b4241830d669436bff595a1deaa5148f9562d79
dir: /libfaad/cfft.h/
/* ** FAAD - Freeware Advanced Audio Decoder ** Copyright (C) 2002 M. Bakker ** ** 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. ** ** $Id: cfft.h,v 1.5 2002/11/28 18:48:29 menno Exp $ **/ #ifndef __CFFT_H__ #define __CFFT_H__ #ifdef __cplusplus extern "C" { #endif 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); static void passf2(uint16_t ido, uint16_t l1, complex_t *cc, complex_t *ch, complex_t *wa, int8_t isign); static void passf3(uint16_t ido, uint16_t l1, complex_t *cc, complex_t *ch, complex_t *wa1, complex_t *wa2, int8_t isign); static void passf4(uint16_t ido, uint16_t l1, complex_t *cc, complex_t *ch, complex_t *wa1, complex_t *wa2, complex_t *wa3, int8_t isign); static void passf5(uint16_t ido, uint16_t l1, complex_t *cc, complex_t *ch, complex_t *wa1, complex_t *wa2, complex_t *wa3, complex_t *wa4, int8_t isign); INLINE void cfftf1(uint16_t n, complex_t *c, complex_t *ch, uint16_t *ifac, complex_t *wa, int8_t isign); static void cffti1(uint16_t n, complex_t *wa, uint16_t *ifac); #ifdef __cplusplus } #endif #endif