mpglib.h

音频编码

#include "lame-analysis.h"

#ifndef NOANALYSIS
extern plotting_data *mpg123_pinfo;
#endif

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;
};

typedef struct mpstr_tag {
	struct buf *head,*tail;
        int vbr_header;               /* 1 if valid Xing vbr header detected */
        int num_frames;               /* set if vbr header present */
        int enc_delay;                /* set if vbr header present */
        int enc_padding;              /* set if vbr header present */
        int header_parsed;
        int side_parsed;  
        int data_parsed;  
        int free_format;             /* 1 = free format frame */
        int old_free_format;        /* 1 = last frame was free format */
	int bsize;
	int framesize;
	int ssize;
	int dsize;
        int fsizeold;
        int fsizeold_nopadding;
	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;
        int  sync_bitstream;

    int bitindex;
    unsigned char* wordpointer;	
} MPSTR, *PMPSTR;


#if ( defined(_MSC_VER) || defined(__BORLANDC__) )
	typedef int BOOL; /* windef.h contains the same definition */
#else
	#define BOOL int
#endif

#define MP3_ERR -1
#define MP3_OK  0
#define MP3_NEED_MORE 1