mpglib.h

一个将mp3/mp2文件解压成wav文件的源码

#include <windows.h>
//#include "mpg123.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;
};

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);

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