mp3decoder.h

在51下的外挂硬盘和FLASH的MP3方案程序以及原理图

/********************************************************/
/*                                                      */
/*  库   名   称：MP3解码器函数库                       */

/*  功 能  描 述：MP3解码器的初始化，及播放操作         */
/*                                                      */
/********************************************************/

#define MP3_VOLUME_BOTH			0x01
#define MP3_VOLUME_LEFT			0x02
#define MP3_VOLUME_RIGHT		0x03
#define MP3_BASS				0x04
#define MP3_MEDIUM				0x05
#define MP3_TREBLE				0x06
#define MP3_BASS_BOOST			0x07
#define MP3_PAUSE				0x08


#ifndef _TYPE_DEFINE
 #define _TYPE_DEFINE
 typedef bit BOOL;
 typedef unsigned char BYTE;
 typedef unsigned char CHAR;
 typedef unsigned int WORD;
 typedef unsigned long DWORD;
#endif

#ifndef _MP3DECODER_DEFINE
 #define _MP3DECODER_DEFINE
struct MP3Str
{
	BYTE  Playing;
	BYTE File;
	WORD Point;
	WORD TotalTime;
	WORD PlayingTime;
};

#ifndef _LIBRARY_DEFINE
 data struct MP3Str MP3;

 code BYTE MPEGVer[2][7]={"MPEG-2","MPEG-1"};
 code BYTE Fs[8]={22,44,24,48,16,32,0,0};
 code BYTE DACFs[8]={33,16,30,15,158,22,0,0};
#endif

#endif

extern data struct MP3Str MP3;

extern code BYTE MPEGVer[2][7];
extern code BYTE Fs[8];
extern code BYTE DACFs[8];

extern void MP3DECVersion(void);
extern void InitMP3Decoder(void);
extern void LoadMP3Data(BYTE file);
extern void MP3DecoderControl(BYTE mode,BOOL operate);