VFW压缩AVI问题
我写了个视频采集和压缩的程序，但是在压缩那块有问题，麻烦高手帮忙看下代码，谢谢了。
变量如下

C/C++ code

    HIC hic;    HWND m_hCapWnd;              // 预示窗口    BOOL m_bInit;               // 捕捉器初始化    CAPDRIVERCAPS m_CapDrvCap;     // CAPDRIVERCAPS 结构，定义驱动器性能    CAPSTATUS m_CapStatus;// CAPSTATUS 结构，定义捕捉窗口当前状态    CAPTUREPARMS m_Parms;// CAPTURE PARMS 结构，定义捕捉参数    BITMAPINFO bmiFormat;  //采集格式设置    DWORD VideoFormatSize;    LPBITMAPINFO lpbinfo;               //视频格式    ICCOMPRESSFRAMES VideoFrameInfo;    //视频压缩信息结构        LPWSABUF pSourceDatabuf;        COMPVARS cv;    //视频压缩结构

OnInitDialog方法初始化

C/C++ code

/////////////////////////////////////////////////////////////////////////////////////////////////    m_bInit = FALSE;    CWnd* pWnd = GetDlgItem(IDC_OCX1);    CRect rect;    pWnd->GetWindowRect(&rect);    m_hCapWnd=capCreateCaptureWindow((LPTSTR)TEXT("视频捕捉测试程序"),WS_CHILD|WS_VISIBLE|WS_EX_CLIENTEDGE|WS_EX_DLGMODALFRAME,0,0,rect.Width(),rect.Width(),pWnd->GetSafeHwnd(),0); // 设置预示窗口    ASSERT(m_hCapWnd);    if(capDriverConnect(m_hCapWnd,0))    {        m_bInit = TRUE;        capDriverGetCaps(m_hCapWnd,sizeof(CAPDRIVERCAPS),&m_CapDrvCap);        if(m_CapDrvCap.fCaptureInitialized)        {            capGetStatus(m_hCapWnd,&m_CapStatus,sizeof(m_CapStatus));            capPreviewRate(m_hCapWnd,30); //设置预示帧数            capPreview(m_hCapWnd,TRUE); //设置预示方式                    }        else{// 初始化未成功            AfxMessageBox("视频捕捉卡初始化失败!");            AfxGetMainWnd()->PostMessage (WM_CLOSE);        }    }    else{// 未能连接到驱动器        AfxMessageBox("与视频捕捉卡连接失败!");        AfxGetMainWnd()->PostMessage(WM_CLOSE);    }    /////////////////////////////////////////////////////////////////////////////////////////////////    /**初始化MPEG4压缩与解压缩器*/    int i;    int fccType = 0;        ICINFO info;    CString strDriverName;        for(i = 0;ICInfo(fccType,i,&info);i++)    {        hic = ICOpen(info.fccType,info.fccHandler,ICMODE_QUERY);        ICGetInfo(hic,&info,sizeof(ICINFO));        strDriverName = CString(info.szDescription);        ICClose(hic);        if(strDriverName == "Microsoft MPEG-4 Video Codec V1")        {            cv.hic = ICOpen(info.fccType,info.fccHandler,ICMODE_FASTCOMPRESS);            cv.dwFlags = ICMF_COMPVARS_VALID;            cv.fccType = info.fccType;            cv.fccHandler = info.fccHandler;            cv.lDataRate = 6000;            cv.lKey = 1;            cv.lQ = 10000;            break;        }        strDriverName = "";    }////////////////////////////////////////////////////////////////////    /***初始化视频压缩格式**/    cv.cbSize = sizeof(COMPVARS);    VideoFormatSize = capGetVideoFormatSize(m_hCapWnd);    lpbinfo = (LPBITMAPINFO)LocalAlloc(LPTR,VideoFormatSize);    if(lpbinfo)    {        capGetVideoFormat(m_hCapWnd,lpbinfo,VideoFormatSize);    }    else        return;    VideoFormatSize = ICCompressGetFormatSize(cv.hic,lpbinfo);    cv.lpbiOut = (LPBITMAPINFO)LocalAlloc(LPTR,VideoFormatSize);    ICCompressGetFormat(cv.hic,lpbinfo,cv.lpbiOut);    VideoFrameInfo.dwFlags = ICCOMPRESSFRAMES_PADDING;    VideoFrameInfo.lpbiOutput = &(cv.lpbiOut->bmiHeader);    VideoFrameInfo.lpbiInput = &(lpbinfo->bmiHeader);    VideoFrameInfo.lStartFrame = 0;    VideoFrameInfo.lQuality = ICGetDefaultQuality(cv.hic);    VideoFrameInfo.lDataRate = 910;    VideoFrameInfo.lKeyRate = 60;    VideoFrameInfo.dwRate = 25*40;    VideoFrameInfo.dwScale = 25;    ICSendMessage(cv.hic,ICM_COMPRESS_FRAMES_INFO,(DWORD)(LPVOID)&VideoFrameInfo,sizeof(ICCOMPRESSFRAMES));/////////////////////////////////////////////////////////////////////////////////////////////////    /***判断压缩支持**/    if(ICCompressQuery(cv.hic,lpbinfo,0)==ICERR_OK)    {        if(ICSeqCompressFrameStart(&cv,lpbinfo)==true)        {            capSetCallbackOnVideoStream(m_hCapWnd,&VideoCallBack);        }    }    else    {        ICClose(cv.hic);        cv.hic = NULL;        AfxMessageBox(strDriverName+_T("系统视频压缩方式不支持"),MB_ICONINFORMATION|MB_OK);        return;    }///////////////////////////////////////////////////////////////////////////////////////////////// 
 

回调方法

C/C++ code

LRESULT CALLBACK VideoCallBack(HWND hwnd,LPVIDEOHDR lpd){    if(lpd->dwFlags&VHDR_DONE)    {        pSourceDatabuf->len = lpd->dwBufferLength;        CopyMemory(pSourceDatabuf->buf,lpd->lpData,pSourceDatabuf->len);        //开始视频压缩        void *  pCompressData;          BOOL lKey;        long size;        pCompressData = NULL;        pCompressData = ICSeqCompressFrame(&cv,0,pSourceDatabuf->buf,&lKey,&size);        if(pCompressData == NULL)            return(LRESULT)FALSE;    }    return(LRESULT)FALSE;}

录制按钮方法

C/C++ code

BOOL CTHIRD::OnCapture() {    CTime dntm;    dntm=CTime::GetCurrentTime();    CString str=dntm.Format(("%Y-%m-%d %H-%M-%S"));    CString path;    path.Format("D:\\%s-%s\\%s.avi",id,Name,str);//    capFileSetCaptureFile(m_hCapWnd,path.GetBuffer(255));//////////////////////////////////////////////////////////////////////////    /***********采集设置与控制*****/    capGetVideoFormat(m_hCapWnd,&bmiFormat,sizeof(BITMAPINFO));    bmiFormat.bmiHeader.biBitCount = 24;    bmiFormat.bmiHeader.biWidth = 352;    bmiFormat.bmiHeader.biHeight = 288;    bmiFormat.bmiHeader.biSizeImage = 0;    capSetVideoFormat(m_hCapWnd,&bmiFormat,sizeof(BITMAPINFO));//////////////////////////////////////////////////////////////////////////    capCaptureGetSetup(m_hCapWnd, &m_Parms,sizeof(m_Parms));// 得到设置参数    m_Parms.fYield = TRUE;    m_Parms.fMakeUserHitOKToCapture = true;    m_Parms.wPercentDropForError = 100;    if(capCaptureSetSetup(m_hCapWnd, &m_Parms,sizeof(m_Parms))==TRUE)    {        BOOL suc=TRUE;        suc=capCaptureSequence(m_hCapWnd); // 捕捉到文件        return suc;    }    capSetCallbackOnVideoStream(m_hCapWnd,&VideoCallBack);    //    capCaptureSequenceNoFile(m_hCapWnd);    capFileSetCaptureFile(m_hCapWnd,path.GetBuffer(255));    pSourceDatabuf = new WSABUF;    pSourceDatabuf->buf = new char[352*288*3];}

基本功能就在这里，麻烦各位帮我看下，我如果去掉压缩的话可以正常采集到视频放在D盘，但是一加上压缩就会弹出个应用程序错误，什么什么内存不能written的错误消息，麻烦各位了，谢谢了

[解决办法]

C/C++ code

::ShowWindow(m_hWndVideo,SW_HIDE);