ref: dfb4b522830edab8f3856289d326d6cf5e930644
dir: /sys/src/cmd/audio/mp3enc/l3side.h/
/*
* Layer 3 side include file
*
* Copyright (c) 1999 Mark Taylor
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef LAME_L3SIDE_H
#define LAME_L3SIDE_H
#include "encoder.h"
#include "machine.h"
/* Layer III side information. */
typedef FLOAT8 D576[576];
typedef int I576[576];
typedef FLOAT8 D192_3[192][3];
typedef int I192_3[192][3];
typedef struct
{
int l[1+SBMAX_l];
int s[1+SBMAX_s];
} scalefac_struct;
typedef struct {
FLOAT8 l[SBMAX_l];
FLOAT8 s[SBMAX_s][3];
} III_psy_xmin;
typedef struct {
III_psy_xmin thm;
III_psy_xmin en;
} III_psy_ratio;
typedef struct {
int part2_3_length;
int big_values;
int count1;
int global_gain;
int scalefac_compress;
int window_switching_flag;
int block_type;
int mixed_block_flag;
int table_select[3];
int subblock_gain[3];
int region0_count;
int region1_count;
int preflag;
int scalefac_scale;
int count1table_select;
int part2_length;
int sfb_lmax;
int sfb_smin;
int count1bits;
/* added for LSF */
const int *sfb_partition_table;
int slen[4];
} gr_info;
typedef struct {
int main_data_begin;
int private_bits;
int resvDrain_pre;
int resvDrain_post;
int scfsi[2][4];
struct {
struct gr_info_ss {
gr_info tt;
} ch[2];
} gr[2];
} III_side_info_t;
/* Layer III scale factors. */
/* note: there are only SBPSY_l=(SBMAX_l-1) and SBPSY_s=(SBMAX_s-1) scalefactors.
* Dont know why these would be dimensioned SBMAX_l and SBMAX-s */
typedef struct {
int l[SBMAX_l]; /* [cb] */
int s[SBMAX_s][3]; /* [window][cb] */
} III_scalefac_t; /* [gr][ch] */
#endif