www.pudn.com > AudioCodec.rar > AudioFile.h

// AudioFile.h: interface for the CAudioFile class. 
// 
////////////////////////////////////////////////////////////////////// 
 
#if !defined(AFX_AUDIOFILE_H__D8A0CB41_EB04_11D4_A31E_5254AB104E6A__INCLUDED_) 
#define AFX_AUDIOFILE_H__D8A0CB41_EB04_11D4_A31E_5254AB104E6A__INCLUDED_ 
 
#if _MSC_VER > 1000 
#pragma once 
#endif // _MSC_VER > 1000 
 
class CAudioFile : public CFile  
{ 
	DECLARE_DYNAMIC(CAudioFile) 
public: 
	CAudioFile(); 
	~CAudioFile(); 
 
	virtual BOOL Open(LPCTSTR lpszFileName, UINT nOpenFlags = CFile::modeRead, CFileException* pError = NULL); 
	virtual UINT Read(void* lpBuf, UINT nCount); 
	virtual void Write(const void* lpBuf, UINT nCount); 
	virtual void Close();  
 
	int SetOptions(int iType, BOOL bUseAcm, BOOL bUseVAD, BOOL bUseHighRate); 
 
public: 
	static int EncodeG711a(short * pSample, unsigned char * pCode, int iSampleLength); 
	static int EncodeG711u(short * pSample, unsigned char * pCode, int iSampleLength); 
	static int DecodeG711a(unsigned char * pCode, short * pSample, int iCodeLength); 
	static int DecodeG711u(unsigned char * pCode, short * pSample, int iCodeLength); 
 
	static void InitG721(); 
	static int EncodeG721(short * pSample, unsigned char * pCode, int iSampleLength); 
	static int DecodeG721(unsigned char * pCode, short * pSample, int iCodeLength); 
 
	static void InitGSM(); 
	static void FreeGSM(); 
	static int EncodeGSM(short * pSample, unsigned char * pCode, int iSampleLength); 
	static int DecodeGSM(unsigned char * pCode, short * pSample, int iCodeLength); 
 
	static void InitG729cp(BOOL bUseVAD); 
	static int EncodeG729cp(short * pSample, unsigned char * pCode, int iSampleLength); 
	static int DecodeG729cp(unsigned char * pCode, short * pSample, int iCodeLength); 
 
	static void InitG723f(BOOL bUseVAD, BOOL bUseHighRate); 
	static int EncodeG723f(short * pSample, unsigned char * pCode, int iSampleLength); 
	static int DecodeG723f(unsigned char * pCode, short * pSample, int iCodeLength); 
 
	static void InitILBCf(); 
	static int EncodeILBCf(short * pSample, unsigned char * pCode, int iSampleLength); 
	static int DecodeILBCf(unsigned char * pCode, short * pSample, int iCodeLength); 
 
protected: 
	int Decode(unsigned char * pCode, short * pSample, int iCodeLength); 
	int Encode(short * pSample, unsigned char * pCode, int iSampleLength); 
 
protected: 
	int m_iType; 
	BOOL m_bUseAcm; 
}; 
 
#endif // !defined(AFX_AUDIOFILE_H__D8A0CB41_EB04_11D4_A31E_5254AB104E6A__INCLUDED_)