www.pudn.com > MP3Dec2Wav_04.rar > mpg123.h

#include  
 
#include         
#include         
#include         
 
#ifndef WIN32 
#include         
#include         
#endif 
 
#include         
 
#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 
 
#define         FALSE                   0 
#define         TRUE                    1 
 
#define         SBLIMIT                 32 
#define         SSLIMIT                 18 
 
#define         SCALE_BLOCK             12 /* Layer 2 */ 
 
#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 
 
#define MP3_ERR -1 
#define MP3_OK  0 
#define MP3_NEED_MORE 1 
 
 
/* 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 padding; 
    int extension; 
    int mode; 
    int mode_ext; 
    int copyright; 
    int original; 
    int emphasis; 
    int framesize;  /* computed framesize */ 
    int II_sblimit; /* Layer 2 */ 
    struct al_table *alloc; /* Layer 2 */ 
    int (*do_layer)(struct frame *fr,unsigned char *, int *);/* Layer 2 */ 
}; 
 
/* extern unsigned int   get1bit(void);*/ 
extern unsigned int   getbits(int); 
extern unsigned int   getbits_fast(int); 
extern int set_pointer(long); 
 
extern unsigned char *wordpointer; 
extern int bitindex; 
 
extern int do_layer3(struct frame *fr,unsigned char *,int *); 
extern int do_layer2(struct frame *fr,unsigned char *,int *); 
 
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 (real *,int,unsigned char *,int *); 
extern int tsynth_1to1 (real *,int,unsigned char *,int *); 
extern int synth_1to1_mono (real *,unsigned char *,int *); 
 
extern void init_layer3(int); 
extern void init_layer2(void); 
extern void make_decode_tables(long scale); 
extern void dct64(real *,real *,real *); 
 
extern long freqs[9]; 
extern real muls[27][64]; 
extern real decwin[512+32]; 
extern real *pnts[5]; 
 
 
/* Preserves exiting */ 
 
#define BE_QUIET 
 
/* Windows debugging message */ 
void MessageI(int i); 
 
//-- content of mpglib.h ------ 
 
struct buf { 
	unsigned char *pnt; 
	long size; 
	long pos; 
	struct buf *next; 
	struct buf *prev; 
}; 
 
struct framebuf { 
	struct buf *buf; 
	long pos; 
	struct frame *next; 
	struct frame *prev; 
}; 
 
struct mpstr { 
	struct buf *head,*tail; 
	int bsize; 
	int framesize; 
	int fsizeold; 
	struct frame fr; 
	unsigned char bsspace[2][MAXFRAMESIZE+512]; /* MAXFRAMESIZE */ 
	real hybrid_block[2][2][SBLIMIT*SSLIMIT]; 
	int hybrid_blc[2]; 
	unsigned long header; 
	int bsnum; 
	real synth_buffs[2][2][0x110]; 
	int  synth_bo; 
}; 
 
//--------wfz_added-------- 
extern	BOOL InitMP3(struct mpstr *mp); 
extern	void ExitMP3(struct mpstr *mp); 
extern	int  decodeMP3(struct mpstr *mp, char *in, int isize, char *out, int osize, int *done);