153 lines
3.7 KiB
C
153 lines
3.7 KiB
C
|
/*
|
||
|
|
* Copyright (C) 1999-2010 The L.A.M.E. project
|
||
|
|
*
|
||
|
|
* Initially written by Michael Hipp, see also AUTHORS and README.
|
||
|
|
*
|
||
|
|
* 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 MPG123_H_INCLUDED
|
||
|
|
#define MPG123_H_INCLUDED
|
||
|
|
|
||
|
|
#include <stdio.h>
|
||
|
|
|
||
|
|
#ifdef STDC_HEADERS
|
||
|
|
# include <string.h>
|
||
|
|
#else
|
||
|
|
# ifndef HAVE_STRCHR
|
||
|
|
# define strchr index
|
||
|
|
# define strrchr rindex
|
||
|
|
# endif
|
||
|
|
char *strchr(), *strrchr();
|
||
|
|
# ifndef HAVE_MEMCPY
|
||
|
|
# define memcpy(d, s, n) bcopy ((s), (d), (n))
|
||
|
|
# define memmove(d, s, n) bcopy ((s), (d), (n))
|
||
|
|
# endif
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#include <signal.h>
|
||
|
|
|
||
|
|
|
||
|
|
#if defined(__riscos__) && defined(FPA10)
|
||
|
|
#include "ymath.h"
|
||
|
|
#else
|
||
|
|
#include <math.h>
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifndef M_PI
|
||
|
|
#define M_PI 3.14159265358979323846
|
||
|
|
#endif
|
||
|
|
#ifndef M_SQRT2
|
||
|
|
#define M_SQRT2 1.41421356237309504880
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifndef FALSE
|
||
|
|
#define FALSE 0
|
||
|
|
#endif
|
||
|
|
#ifndef TRUE
|
||
|
|
#define TRUE 1
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#undef REAL_IS_FLOAT
|
||
|
|
#define REAL_IS_FLOAT
|
||
|
|
|
||
|
|
#ifdef REAL_IS_FLOAT
|
||
|
|
# define real float
|
||
|
|
#elif defined(REAL_IS_LONG_DOUBLE)
|
||
|
|
# define real long double
|
||
|
|
#else
|
||
|
|
# define real double
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#define FALSE 0
|
||
|
|
#define TRUE 1
|
||
|
|
|
||
|
|
#define SBLIMIT 32
|
||
|
|
#define SSLIMIT 18
|
||
|
|
|
||
|
|
#define MPG_MD_STEREO 0
|
||
|
|
#define MPG_MD_JOINT_STEREO 1
|
||
|
|
#define MPG_MD_DUAL_CHANNEL 2
|
||
|
|
#define MPG_MD_MONO 3
|
||
|
|
|
||
|
|
#define MAXFRAMESIZE 2880
|
||
|
|
|
||
|
|
/* AF: ADDED FOR LAYER1/LAYER2 */
|
||
|
|
#define SCALE_BLOCK 12
|
||
|
|
|
||
|
|
|
||
|
|
/* Pre Shift fo 16 to 8 bit converter table */
|
||
|
|
#define AUSHIFT (3)
|
||
|
|
|
||
|
|
struct frame {
|
||
|
|
int stereo;
|
||
|
|
int single; /* single channel (monophonic) */
|
||
|
|
int lsf; /* 0 = MPEG-1, 1 = MPEG-2/2.5 */
|
||
|
|
int mpeg25; /* 1 = MPEG-2.5, 0 = MPEG-1/2 */
|
||
|
|
int header_change;
|
||
|
|
int lay; /* Layer */
|
||
|
|
int error_protection; /* 1 = CRC-16 code following header */
|
||
|
|
int bitrate_index;
|
||
|
|
int sampling_frequency; /* sample rate of decompressed audio in Hz */
|
||
|
|
int padding;
|
||
|
|
int extension;
|
||
|
|
int mode;
|
||
|
|
int mode_ext;
|
||
|
|
int copyright;
|
||
|
|
int original;
|
||
|
|
int emphasis;
|
||
|
|
int framesize; /* computed framesize */
|
||
|
|
|
||
|
|
/* AF: ADDED FOR LAYER1/LAYER2 */
|
||
|
|
int II_sblimit;
|
||
|
|
struct al_table2 const *alloc;
|
||
|
|
int down_sample_sblimit;
|
||
|
|
int down_sample;
|
||
|
|
|
||
|
|
|
||
|
|
};
|
||
|
|
|
||
|
|
struct gr_info_s {
|
||
|
|
int scfsi;
|
||
|
|
unsigned part2_3_length;
|
||
|
|
unsigned big_values;
|
||
|
|
unsigned scalefac_compress;
|
||
|
|
unsigned block_type;
|
||
|
|
unsigned mixed_block_flag;
|
||
|
|
unsigned table_select[3];
|
||
|
|
unsigned subblock_gain[3];
|
||
|
|
unsigned maxband[3];
|
||
|
|
unsigned maxbandl;
|
||
|
|
unsigned maxb;
|
||
|
|
unsigned region1start;
|
||
|
|
unsigned region2start;
|
||
|
|
unsigned preflag;
|
||
|
|
unsigned scalefac_scale;
|
||
|
|
unsigned count1table_select;
|
||
|
|
real *full_gain[3];
|
||
|
|
real *pow2gain;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct III_sideinfo {
|
||
|
|
unsigned main_data_begin;
|
||
|
|
unsigned private_bits;
|
||
|
|
struct {
|
||
|
|
struct gr_info_s gr[2];
|
||
|
|
} ch[2];
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
#endif
|