mp3dec.h 文件参考

#include <stdlib.h>

浏览源代码.

结构体
struct	_MP3FrameInfo

宏定义
#define	MAINBUF_SIZE   1940
#define	MAX_NGRAN   2 /* max granules */
#define	MAX_NCHAN   2 /* max channels */
#define	MAX_NSAMP   576 /* max samples per channel, per granule */

类型定义
typedef void *	HMP3Decoder
typedef void *	MP3SaveLastInfo
typedef struct _MP3FrameInfo	MP3FrameInfo

枚举
enum	MPEGVersion {   MPEG1 = 0,   MPEG2 = 1,   MPEG25 = 2 }
enum	{   ERR_MP3_NONE = 0,   ERR_MP3_INDATA_UNDERFLOW = -1,   ERR_MP3_MAINDATA_UNDERFLOW = -2,   ERR_MP3_FREE_BITRATE_SYNC = -3,   ERR_MP3_OUT_OF_MEMORY = -4,   ERR_MP3_NULL_POINTER = -5,   ERR_MP3_INVALID_FRAMEHEADER = -6,   ERR_MP3_INVALID_SIDEINFO = -7,   ERR_MP3_INVALID_SCALEFACT = -8,   ERR_MP3_INVALID_HUFFCODES = -9,   ERR_MP3_INVALID_DEQUANTIZE = -10,   ERR_MP3_INVALID_IMDCT = -11,   ERR_MP3_INVALID_SUBBAND = -12,   ERR_MP3_UNKNOWN = -9999 }

函数
HMP3Decoder	MP3InitDecoder (void)
void	MP3FreeDecoder (HMP3Decoder hMP3Decoder)
int	MP3Decode (HMP3Decoder hMP3Decoder, unsigned char **inbuf, int *bytesLeft, short *outbuf, int useSize)
size_t	MP3GetSaveLastInfoStructSize (void)
int	MP3ClearLastDecodeMainData (HMP3Decoder hMP3Decoder)
int	MP3SaveLastDecodeMainData (HMP3Decoder hMP3Decoder, MP3SaveLastInfo saveInfo)
int	MP3LoadLastDecodeMainData (HMP3Decoder hMP3Decoder, MP3SaveLastInfo saveInfo)
void	MP3GetLastFrameInfo (HMP3Decoder hMP3Decoder, MP3FrameInfo *mp3FrameInfo)
int	MP3GetNextFrameInfo (HMP3Decoder hMP3Decoder, MP3FrameInfo *mp3FrameInfo, unsigned char *buf)
int	MP3FindSyncWord (unsigned char *buf, int nBytes)
void	MP3Lib_Set_Func (void *f1, void *f2, void *f3, void *f4, void *f5)

---

结构体说明

_MP3FrameInfo

struct _MP3FrameInfo

成员变量
int	bitrate
int	bitsPerSample
int	layer
int	nChans
int	outputSamps
int	samprate
int	version

宏定义说明

MAINBUF_SIZE

#define MAINBUF_SIZE   1940

MAX_NCHAN

#define MAX_NCHAN   2 /* max channels */

MAX_NGRAN

#define MAX_NGRAN   2 /* max granules */

MAX_NSAMP

#define MAX_NSAMP   576 /* max samples per channel, per granule */

类型定义说明

HMP3Decoder

typedef void* HMP3Decoder

MP3FrameInfo

typedef struct _MP3FrameInfo MP3FrameInfo

MP3SaveLastInfo

typedef void* MP3SaveLastInfo

枚举类型说明

anonymous enum

anonymous enum

枚举值
ERR_MP3_NONE
ERR_MP3_INDATA_UNDERFLOW
ERR_MP3_MAINDATA_UNDERFLOW
ERR_MP3_FREE_BITRATE_SYNC
ERR_MP3_OUT_OF_MEMORY
ERR_MP3_NULL_POINTER
ERR_MP3_INVALID_FRAMEHEADER
ERR_MP3_INVALID_SIDEINFO
ERR_MP3_INVALID_SCALEFACT
ERR_MP3_INVALID_HUFFCODES
ERR_MP3_INVALID_DEQUANTIZE
ERR_MP3_INVALID_IMDCT
ERR_MP3_INVALID_SUBBAND
ERR_MP3_UNKNOWN

MPEGVersion

enum MPEGVersion

枚举值
MPEG1
MPEG2
MPEG25

函数说明

MP3ClearLastDecodeMainData()

int MP3ClearLastDecodeMainData

(

HMP3Decoder

hMP3Decoder

)

MP3Decode()

int MP3Decode	(	HMP3Decoder	hMP3Decoder,
		unsigned char **	inbuf,
		int *	bytesLeft,
		short *	outbuf,
		int	useSize
	)

MP3FindSyncWord()

int MP3FindSyncWord	(	unsigned char *	buf,
		int	nBytes
	)

MP3FreeDecoder()

void MP3FreeDecoder

(

HMP3Decoder

hMP3Decoder

)

MP3GetLastFrameInfo()

void MP3GetLastFrameInfo	(	HMP3Decoder	hMP3Decoder,
		MP3FrameInfo *	mp3FrameInfo
	)

MP3GetNextFrameInfo()

int MP3GetNextFrameInfo	(	HMP3Decoder	hMP3Decoder,
		MP3FrameInfo *	mp3FrameInfo,
		unsigned char *	buf
	)

MP3GetSaveLastInfoStructSize()

size_t MP3GetSaveLastInfoStructSize

(

void

)

MP3InitDecoder()

HMP3Decoder MP3InitDecoder

(

void

)

MP3Lib_Set_Func()

void MP3Lib_Set_Func	(	void *	f1,
		void *	f2,
		void *	f3,
		void *	f4,
		void *	f5
	)

MP3LoadLastDecodeMainData()

int MP3LoadLastDecodeMainData	(	HMP3Decoder	hMP3Decoder,
		MP3SaveLastInfo	saveInfo
	)

MP3SaveLastDecodeMainData()

int MP3SaveLastDecodeMainData	(	HMP3Decoder	hMP3Decoder,
		MP3SaveLastInfo	saveInfo
	)