ref: 4041be70bf23c172dda3d107e19d84c2fb58f644
dir: /libfaad/filtbank.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: filtbank.h,v 1.5 2002/03/16 13:38:37 menno Exp $
**/
#ifndef __FILTBANK_H__
#define __FILTBANK_H__
#ifdef __cplusplus
extern "C" {
#endif
#include "mdct.h"
#define BLOCK_LEN_LONG 1024
#define BLOCK_LEN_LD 512
#define BLOCK_LEN_SHORT 128
typedef struct
{
real_t *long_window[2];
real_t *short_window[2];
#ifdef LD_DEC
real_t *ld_window[2];
#endif
mdct_info mdct256;
#ifdef LD_DEC
mdct_info mdct1024;
#endif
mdct_info mdct2048;
} fb_info;
void filter_bank_init(fb_info *fb);
void filter_bank_end(fb_info *fb);
void filter_bank_ltp(fb_info *fb,
uint8_t window_sequence,
uint8_t window_shape,
uint8_t window_shape_prev,
real_t *in_data,
real_t *out_mdct,
uint8_t object_type);
void ifilter_bank(fb_info *fb,
uint8_t window_sequence,
uint8_t window_shape,
uint8_t window_shape_prev,
real_t *freq_in,
real_t *time_buff,
real_t *time_out,
uint8_t object_type);
#ifdef __cplusplus
}
#endif
#endif