ref: 57741d473f9d5165d142b165bd837984f6428c66
dir: /sys/src/cmd/audio/mp3enc/tables.h/
/*
* MPEG layer 3 tables include file
*
* Copyright (c) 1999 Albert L Faber
*
* 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_TABLES_H
#define LAME_TABLES_H
#include "machine.h"
typedef struct {
unsigned char no;
unsigned char width;
unsigned char minval_2;
float quiet_thr;
float norm;
float bark;
} type1_t;
typedef struct {
unsigned char no;
unsigned char width;
float quiet_thr;
float norm;
float SNR;
float bark;
} type2_t;
typedef struct {
unsigned int no : 5;
unsigned int cbw : 3;
unsigned int bu : 6;
unsigned int bo : 6;
unsigned int w1_576 : 10;
unsigned int w2_576 : 10;
} type34_t;
typedef struct {
size_t len1;
const type1_t* const tab1;
size_t len2;
const type2_t* const tab2;
size_t len3;
const type34_t* const tab3;
size_t len4;
const type34_t* const tab4;
} type5_t;
extern const type5_t table5 [6];
#define HTN 34
struct huffcodetab {
const int xlen; /* max. x-index+ */
const int linmax; /* max number to be stored in linbits */
const short* table; /* pointer to array[xlen][ylen] */
const char* hlen; /* pointer to array[xlen][ylen] */
};
extern const struct huffcodetab ht [HTN];
/* global memory block */
/* array of all huffcodtable headers */
/* 0..31 Huffman code table 0..31 */
/* 32,33 count1-tables */
extern const char t32l [];
extern const char t33l [];
extern const unsigned int largetbl [16*16];
extern const unsigned int table23 [3*3];
extern const unsigned int table56 [4*4];
#endif /* LAME_TABLES_H */