ref: b1d957de163081057eac05c26d502f6c28fc6dc8
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 1.6 2002/04/07 21:26:04 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); #ifdef LTP_DEC 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); #endif 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