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

// WaveFile.h: interface for the CWaveFile class. 
// 
////////////////////////////////////////////////////////////////////// 
 
#if !defined(AFX_WAVEFILE_H__F5B5B2E3_E60F_11D3_8AB6_5254AB104A0B__INCLUDED_) 
#define AFX_WAVEFILE_H__F5B5B2E3_E60F_11D3_8AB6_5254AB104A0B__INCLUDED_ 
 
#if _MSC_VER > 1000 
#pragma once 
#endif // _MSC_VER > 1000 
 
#define WAVE_FILE_PCM			0	// pass without codec 
#define WAVE_FILE_ALAW			1 
#define WAVE_FILE_MULAW			2 
#define WAVE_FILE_ADPCM			3	//"Microsoft ADPCM"; 
#define WAVE_FILE_GSM610		4 
#define WAVE_FILE_G729			5	 
#define WAVE_FILE_G723_1		6 
 
#define WAVE_FORMAT_GFDVR	WAVE_FORMAT_DEVELOPMENT 
 
class CWaveFile   
{ 
public: 
	CWaveFile(); 
	virtual ~CWaveFile(); 
 
	//iMode could be: MMIO_READ, MMIO_WRITE, MMIO_CREATE     
	BOOL Open(CString strFileName, int iMode); 
	void Close(); 
 
	int Read(unsigned char * pData, int iLength); 
 
	//Set the format of the wave data you want to write 
	BOOL SetFormat(WAVEFORMATEX * pFormat, int iFormatSize); 
	BOOL SetFormat(int iType); 
	BOOL Write(unsigned char * pData, int iLength); 
 
	inline int GetDataLength()	{	return m_iDataSize;	} 
	inline WAVEFORMATEX * GetWaveFormat()	{	return m_pWaveFormat;	} 
	inline int GetFormatSize()	{	return (int)m_dwFormatSize;	} 
 
protected: 
	HMMIO		m_hMmio;              // file handle for open file  
    MMCKINFO    m_mmckinfoParent;     // parent chunk information  
    MMCKINFO    m_mmckinfoSubchunk;   // subchunk information structure  
	WAVEFORMATEX	* m_pWaveFormat; 
	DWORD			m_dwFormatSize; 
	int m_iDataSize; 
	int m_iMode; 
 
protected: 
	BOOL ReadChunk(); 
	BOOL WriteChunk(int iFormatSize); 
}; 
 
#endif // !defined(AFX_WAVEFILE_H__F5B5B2E3_E60F_11D3_8AB6_5254AB104A0B__INCLUDED_)