ref: b1d957de163081057eac05c26d502f6c28fc6dc8
dir: /libfaad/mdct.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: mdct.h,v 1.6 2002/04/07 21:26:04 menno Exp $
**/
#ifndef __MDCT_H__
#define __MDCT_H__
#ifdef __cplusplus
extern "C" {
#endif
#include <fftw.h>
typedef struct {
real_t re;
real_t im;
} faad_complex;
typedef struct {
real_t sin;
real_t cos;
} faad_sincos;
typedef struct {
fftw_complex *Z1;
fftw_complex *Z2;
faad_sincos *sincos;
fftw_plan plan_backward;
#ifdef LTP_DEC
fftw_plan plan_forward;
#endif
uint16_t N;
} mdct_info;
void faad_mdct_init(mdct_info *mdct, uint16_t N);
void faad_mdct_end(mdct_info *mdct);
void faad_imdct(mdct_info *mdct, real_t *X_in, real_t *X_out);
void faad_mdct(mdct_info *mdct, real_t *X_in, real_t *X_out);
#ifdef __cplusplus
}
#endif
#endif