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#include <stdio.h>
#include <string.h>
#include <signal.h>
#ifndef WIN32
#include <sys/signal.h>
#include <unistd.h>
#endif
#include <math.h>
#include "metronom.h"
#ifdef _WIN32
# undef WIN32
# define WIN32
# define M_PI 3.14159265358979323846
# define M_SQRT2 1.41421356237309504880
# define REAL_IS_FLOAT
# define NEW_DCT9
# define random rand
# define srandom srand
#endif
#ifdef REAL_IS_FLOAT
# define real float
#elif defined(REAL_IS_LONG_DOUBLE)
# define real long double
#else
# define real double
#endif
#ifdef __GNUC__
#define INLINE inline
#else
#define INLINE
#endif
/* AUDIOBUFSIZE = n*64 with n=1,2,3 ... */
#define AUDIOBUFSIZE 16384
#ifndef FALSE
#define FALSE 0
#endif
#ifndef FALSE
#define TRUE 1
#endif
#define SBLIMIT 128
#define SSLIMIT 18
#define SCALE_BLOCK 12
#define MPG_MD_STEREO 0
#define MPG_MD_JOINT_STEREO 1
#define MPG_MD_DUAL_CHANNEL 2
#define MPG_MD_MONO 3
#define MAXFRAMESIZE 1792
/* Pre Shift fo 16 to 8 bit converter table */
#define AUSHIFT (3)
struct frame {
int stereo;
int jsbound;
int single;
int lsf;
int mpeg25;
int header_change;
int lay;
int error_protection;
int bitrate_index;
int sampling_frequency;
int sample_rate;
int padding;
int extension;
int mode;
int mode_ext;
int copyright;
int original;
int emphasis;
int framesize; /* computed framesize */
/* layer2 stuff */
int II_sblimit;
void *alloc;
};
struct parameter {
int quiet; /* shut up! */
int tryresync; /* resync stream after error */
int verbose; /* verbose level */
int checkrange;
};
#include "mpglib.h"
extern unsigned int get1bit(void);
extern unsigned int getbits(int);
extern unsigned int getbits_fast(int);
extern int set_pointer(mpgaudio_t *mp, long);
extern unsigned char *mpg123_wordpointer;
extern int mpg123_bitindex;
extern void make_decode_tables(long scaleval);
extern void do_layer3(mpgaudio_t *mp);
extern void do_layer2(mpgaudio_t *mp);
extern void do_layer1(mpgaudio_t *mp);
extern int decode_header(struct frame *fr,unsigned long newhead);
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];
};
extern int synth_1to1 (mpgaudio_t *mp, real *,int,unsigned char *,int *);
extern int synth_1to1_8bit (real *,int,unsigned char *,int *);
extern int synth_1to1_mono (mpgaudio_t *mp, real *,unsigned char *,int *);
extern int synth_1to1_mono2stereo (real *,unsigned char *,int *);
extern int synth_1to1_8bit_mono (real *,unsigned char *,int *);
extern int synth_1to1_8bit_mono2stereo (real *,unsigned char *,int *);
extern int synth_2to1 (real *,int,unsigned char *,int *);
extern int synth_2to1_8bit (real *,int,unsigned char *,int *);
extern int synth_2to1_mono (real *,unsigned char *,int *);
extern int synth_2to1_mono2stereo (real *,unsigned char *,int *);
extern int synth_2to1_8bit_mono (real *,unsigned char *,int *);
extern int synth_2to1_8bit_mono2stereo (real *,unsigned char *,int *);
extern int synth_4to1 (real *,int,unsigned char *,int *);
extern int synth_4to1_8bit (real *,int,unsigned char *,int *);
extern int synth_4to1_mono (real *,unsigned char *,int *);
extern int synth_4to1_mono2stereo (real *,unsigned char *,int *);
extern int synth_4to1_8bit_mono (real *,unsigned char *,int *);
extern int synth_4to1_8bit_mono2stereo (real *,unsigned char *,int *);
extern int synth_ntom (real *,int,unsigned char *,int *);
extern int synth_ntom_8bit (real *,int,unsigned char *,int *);
extern int synth_ntom_mono (real *,unsigned char *,int *);
extern int synth_ntom_mono2stereo (real *,unsigned char *,int *);
extern int synth_ntom_8bit_mono (real *,unsigned char *,int *);
extern int synth_ntom_8bit_mono2stereo (real *,unsigned char *,int *);
extern void rewindNbits(int bits);
extern int hsstell(void);
extern int get_songlen(struct frame *fr,int no);
extern void init_layer3(int);
extern void init_layer2(void);
extern void make_decode_tables(long scale);
extern void make_conv16to8_table(int);
extern void dct64(real *,real *,real *);
extern void synth_ntom_set_step(long,long);
extern unsigned char *conv16to8;
extern long freqs[9];
extern real muls[27][64];
extern real decwin[512+32];
extern real *pnts[5];
extern struct parameter param;
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