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Compression.h
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上传用户：onsales
上传日期：2010-01-31
资源大小：224k
文件大小：2k
源码类别：
网络编程
开发平台：
Visual C++
- // Compression.h: interface for the CCompression class.
- //
- //////////////////////////////////////////////////////////////////////
- #if !defined(AFX_COMPRESSION_H__D764BF21_0E55_11D4_8D3A_00002100A114__INCLUDED_)
- #define AFX_COMPRESSION_H__D764BF21_0E55_11D4_8D3A_00002100A114__INCLUDED_
- #if _MSC_VER > 1000
- #pragma once
- #endif // _MSC_VER > 1000
- #include "mmsystem.h"
- #include "mmreg.h" // Multimedia registration
- #include "msacm.h" // Audio Compression Manager
- #include "winsock.h"
- #define ADPCM 2
- #define TRUESPEECH 1
- #define MSN 0
- #define GSM610 3
- #define ALAW 4
- #define MULAW 5
- typedef struct {
- HACMDRIVERID hadid;
- WORD wFormatTag;
- unsigned short nBits;
- unsigned long lSampleRate;
- } FIND_DRIVER_INFO;
- class CCompression
- {
- public:
- long UnConvert(BOOL bQuery,unsigned char* pSrcData,long bytes);
- BOOL PrepareSpace(BOOL bCompression);
- void SetDstSamples(long bytes,unsigned char* pDstData);
- BOOL ConvertSend(SOCKET s,SOCKADDR_IN addr);
- long MyConvert(BOOL bQuery,unsigned char *pDetData, long detLength);
- BOOL Initialize();
- void SelectMethod(int i);
- void SetWaveFormat(int channels,long samplerate,int bitspersample);
- void SetSrcSamples(long samples,unsigned char* pSrcData);
- CCompression();
- virtual ~CCompression();
- WORD wFormatTag;
- WAVEFORMATEX m_wfSrc;
- DWORD m_dwSrcSamples;
- DWORD m_dwSrcBytes;
- BYTE* m_pSrcData;
- WAVEFORMATEX* pwfDrv;
- WAVEFORMATEX* pwfPCM;
- HACMDRIVERID hadid;
- private:
- WAVEFORMATEX* GetDriverFormat(HACMDRIVERID hadid, WORD wFormatTag,BOOL bPCM);
- HACMDRIVERID FindDriver(WORD wFormatTag);
- DWORD dwDst2Bytes;
- DWORD dwDst1Bytes;
- DWORD dwDst1Samples;
- long length;
- long unlength;
- BYTE* pDst1Data;
- BYTE* pDst2Data;
- };
- #endif // !defined(AFX_COMPRESSION_H__D764BF21_0E55_11D4_8D3A_00002100A114__INCLUDED_)
