/*
 * mp3play defines 
 * used source: musicout.h from mpegaudio package
 * 
 */

#include        <stdio.h>
#include        <string.h>
#include        <signal.h>
#include        <math.h>

#include        <unistd.h>
#include    "glxf.h"
#include "interface.h"

#define MPG123_REMOTE
#define SHUFFLESUPPORT

#define FRONTEND_SAJBER 1
#define FRONTEND_TK3PLAY 2


#include <audio.h>

#define real float

#ifdef __GNUC__
#define INLINE inline
#else
#define INLINE
#endif

#include "audio.h"

/* AUDIOBUFSIZE = n*64 with n=1,2,3 ...  */
#define		AUDIOBUFSIZE		16384

#define         FALSE                   0
#define         TRUE                    1

#define         MAX_NAME_SIZE           81
#define         SBLIMIT                 32
#define         SCALE_BLOCK             12
#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 MAXOUTBURST 32768


struct al_table 
{
  short bits;
  short d;
};

/*  This is the
 *  structure of the actual audio frame
 */

struct frame {
    struct al_table *alloc;
    int (*synth)(real *,int,unsigned char *);
    int (*synth_mono)(real *,unsigned char *);
    int stereo;
    int jsbound;
    int single;
    int II_sblimit;
    int lsf;
    int mpeg25;
    int down_sample;
    int header_change;
    int block_size;
    int lay;
	int (*do_layer)(struct frame *fr,int,struct audio_info_struct *);
    int error_protection;
    int bitrate_index;
    int sampling_frequency;
    int padding;
    int extension;
    int mode;
    int mode_ext;
    int copyright;
    int original;
    int emphasis;
};

extern int outmode;  
extern int tryresync;
extern char *prgName, *prgVersion;

/* ------ Declarations from "common.c" ------ */

extern void audio_flush(int, struct audio_info_struct *);

extern void print_header(struct frame *);
extern void print_header_compact(struct frame *);

extern char *strndup(const char *src, int num);

extern unsigned int   getbits(int);
extern unsigned int   getbits_fast(int);

extern void set_pointer(long);

extern unsigned char *pcm_sample;
extern int pcm_point;
extern int audiobufsize;

/*  Extra stuff in Layer III that we have to keep track of */

struct III_sideinfo
{
  unsigned main_data_begin;
  unsigned private_bits;
  struct {
    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;
    } gr[2];
  } ch[2];
};

extern int open_stream(const char *,int fd);
extern void close_stream(void);
extern void read_frame_init (void);
extern int read_frame(struct frame *fr);
extern void play_frame(int init,struct frame *fr);
extern int do_layer3(struct frame *fr,int,struct audio_info_struct *);
extern int synth_1to1 (real *,int,unsigned char *);
extern int synth_1to1_8bit (real *,int,unsigned char *);
extern int synth_1to1_mono (real *,unsigned char *);
extern int synth_1to1_8bit_mono (real *,unsigned char *);
extern void set_pointer(long);

extern void init_layer3(int);
extern void make_decode_tables(long scale);
extern void make_conv16to8_table(int);
extern void dct64(real *,real *,real *);

extern unsigned char *conv16to8;
extern long freqs[7];
/*extern real muls[27][64];*/
extern real decwin[512+32];
extern real *pnts[5];