www.gusucode.com > VC++远程视频监控系统源代码-源码程序 > VC++远程视频监控系统源代码-源码程序/code/AV8SDK/AV8SDK/samples/ENCALLBK/backDlg.cpp
// backDlg.cpp : implementation file // #include "stdafx.h" #include "back.h" #include "backDlg.h" #include "..\..\include\av8api.h" #include "..\..\include\Define.h" #ifdef _DEBUG #define new DEBUG_NEW #undef THIS_FILE static char THIS_FILE[] = __FILE__; #endif static CHAR caFileName[STRSIZE] = "temp.mpg"; typedef WORD (CALLBACK *USER_CALLBACK) (HDRVR hdrvr, UINT msg, DWORD dwUser, DWORD dwParam1, DWORD dwParam2); WORD CALLBACK _loadds MyCallBack(HDRVR hdrvr, UINT msg, DWORD dwUser, DWORD dwParam1, DWORD dwParam2); static HMMIO hmmioInput; static HMMIO hmmioOutput; ///////////////////////////////////////////////////////////////////////////// // CAboutDlg dialog used for App About class CAboutDlg : public CDialog { public: CAboutDlg(); // Dialog Data //{{AFX_DATA(CAboutDlg) enum { IDD = IDD_ABOUTBOX }; //}}AFX_DATA // ClassWizard generated virtual function overrides //{{AFX_VIRTUAL(CAboutDlg) protected: virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support //}}AFX_VIRTUAL // Implementation protected: //{{AFX_MSG(CAboutDlg) //}}AFX_MSG DECLARE_MESSAGE_MAP() }; CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD) { //{{AFX_DATA_INIT(CAboutDlg) //}}AFX_DATA_INIT } void CAboutDlg::DoDataExchange(CDataExchange* pDX) { CDialog::DoDataExchange(pDX); //{{AFX_DATA_MAP(CAboutDlg) //}}AFX_DATA_MAP } BEGIN_MESSAGE_MAP(CAboutDlg, CDialog) //{{AFX_MSG_MAP(CAboutDlg) // No message handlers //}}AFX_MSG_MAP END_MESSAGE_MAP() ///////////////////////////////////////////////////////////////////////////// // CBackDlg dialog CBackDlg::CBackDlg(CWnd* pParent /*=NULL*/) : CDialog(CBackDlg::IDD, pParent), m_hVFDrv(0), m_bStream(0) { //{{AFX_DATA_INIT(CBackDlg) // NOTE: the ClassWizard will add member initialization here //}}AFX_DATA_INIT // Note that LoadIcon does not require a subsequent DestroyIcon in Win32 m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME); } CBackDlg::~CBackDlg() { // make sure that on destruct, OnStop() is called to // stop/close/unlock. This prevents a system crash (blue screen) OnStop(); } void CBackDlg::DoDataExchange(CDataExchange* pDX) { CDialog::DoDataExchange(pDX); //{{AFX_DATA_MAP(CBackDlg) // NOTE: the ClassWizard will add DDX and DDV calls here //}}AFX_DATA_MAP } BEGIN_MESSAGE_MAP(CBackDlg, CDialog) //{{AFX_MSG_MAP(CBackDlg) ON_WM_SYSCOMMAND() ON_WM_PAINT() ON_WM_QUERYDRAGICON() ON_BN_CLICKED(IDC_RECORD, OnRecord) ON_BN_CLICKED(IDC_STOP, OnStop) //}}AFX_MSG_MAP END_MESSAGE_MAP() ///////////////////////////////////////////////////////////////////////////// // CBackDlg message handlers BOOL CBackDlg::OnInitDialog() { CDialog::OnInitDialog(); // Add "About..." menu item to system menu. // IDM_ABOUTBOX must be in the system command range. ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX); ASSERT(IDM_ABOUTBOX < 0xF000); CMenu* pSysMenu = GetSystemMenu(FALSE); CString strAboutMenu; strAboutMenu.LoadString(IDS_ABOUTBOX); if (!strAboutMenu.IsEmpty()) { pSysMenu->AppendMenu(MF_SEPARATOR); pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu); } // Set the icon for this dialog. The framework does this automatically // when the application's main window is not a dialog SetIcon(m_hIcon, TRUE); // Set big icon SetIcon(m_hIcon, FALSE); // Set small icon // TODO: Add extra initialization here cbSystem=(CButton *)GetDlgItem(IDC_SYSTEM); cbVideo=(CButton *)GetDlgItem(IDC_VIDEO); cbAudio=(CButton *)GetDlgItem(IDC_AUDIO); cbSystem->SetCheck(TRUE); return TRUE; // return TRUE unless you set the focus to a control } void CBackDlg::OnSysCommand(UINT nID, LPARAM lParam) { if ((nID & 0xFFF0) == IDM_ABOUTBOX) { CAboutDlg dlgAbout; dlgAbout.DoModal(); } else { CDialog::OnSysCommand(nID, lParam); } } // If you add a minimize button to your dialog, you will need the code below // to draw the icon. For MFC applications using the document/view model, // this is automatically done for you by the framework. void CBackDlg::OnPaint() { if (IsIconic()) { CPaintDC dc(this); // device context for painting SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); // Center icon in client rectangle int cxIcon = GetSystemMetrics(SM_CXICON); int cyIcon = GetSystemMetrics(SM_CYICON); CRect rect; GetClientRect(&rect); int x = (rect.Width() - cxIcon + 1) / 2; int y = (rect.Height() - cyIcon + 1) / 2; // Draw the icon dc.DrawIcon(x, y, m_hIcon); } else { CDialog::OnPaint(); } } // The system calls this to obtain the cursor to display while the user drags // the minimized window. HCURSOR CBackDlg::OnQueryDragIcon() { return (HCURSOR) m_hIcon; } ///////////////////////////////////////////////////////////////////////////// // CAspenApp commands WORD CALLBACK _loadds MyCallBack(HDRVR hdrvr, UINT msg, DWORD dwUser, DWORD dwParam1, DWORD dwParam2) { DWORD dwFlags = 0; TRACE0("MyCallBack"); switch (msg) { case VF_MSGUSER_BUF_WRITE: { LONG lRet; LPVF_BUFWRITE_STRUCT lpBufWrite = (LPVF_BUFWRITE_STRUCT)dwParam1; lRet = mmioWrite(hmmioOutput, (LPSTR)lpBufWrite->lpBuffer, (LONG)lpBufWrite->dwBufferWrite); if (lRet == -1L) { return (FALSE); } break; } case VF_MSGUSER_BUF_CREATE: { LPVF_CALLBACK_STRUCT lpCallback = (LPVF_CALLBACK_STRUCT)dwParam1; if (lpCallback->wSubMsg == VF_SUBMSG_OUTPUT) { dwFlags = MMIO_CREATE | MMIO_WRITE; hmmioOutput = mmioOpen((LPTSTR)caFileName, (LPMMIOINFO)NULL, dwFlags); } else { dwFlags = MMIO_READ | MMIO_DENYWRITE; hmmioInput = mmioOpen((LPTSTR)caFileName, (LPMMIOINFO)NULL, dwFlags); } break; } case VF_MSGUSER_BUF_CLOSE: { LPVF_CALLBACK_STRUCT lpCallback = (LPVF_CALLBACK_STRUCT)dwParam1; if (lpCallback->wSubMsg == VF_SUBMSG_OUTPUT) { if (hmmioOutput) { mmioClose(hmmioOutput, NULL); hmmioOutput = NULL; } } else { if (hmmioInput) { mmioClose(hmmioInput, NULL); hmmioInput = NULL; } } break; } } // switch return 1; } VOID CBackDlg::OnRecord() { // TODO: Add your control notification handler code here WORD flags; m_hVFDrv = OpenDriver (L"av8api.dll", NULL, NULL); if (!m_hVFDrv) { AfxMessageBox(_TEXT("Can't OpenDriver().")); return ; } if (!HVFAssign(m_hVFDrv, 0)) { AfxMessageBox(_TEXT("Can't Assign Dev!")); return ; } if (!HVFLock(m_hVFDrv, VF_CAP_ALL)) { AfxMessageBox(_TEXT("Can't Lock Dev!")); return ; } flags = VF_FLAG_MPEG | VF_FLAG_ENCODE | VF_FLAG_OUTBUF; m_bStream = static_cast<BYTE> (HVFOpen(m_hVFDrv, flags, reinterpret_cast<unsigned long>(MyCallBack))); if(cbSystem->GetCheck()) { InitEncodeVideoVxD(); InitEncodeAudioVxD(); } else { if(cbVideo->GetCheck()) { InitEncodeVideoVxD(); } else { InitEncodeAudioVxD(); } } InitEncodeSystemVxD(); if (m_bStream) { HVFRecord(m_hVFDrv, m_bStream, NULL, NULL); } } // CBackDlg::OnRecord() VOID CBackDlg::OnStop() { // TODO: Add your control notification handler code here m_bStream = 0; if (m_hVFDrv) { HVFStop(m_hVFDrv, m_bStream); HVFClose(m_hVFDrv, m_bStream); HVFUnlock(m_hVFDrv, VF_CAP_ALL); CloseDriver(m_hVFDrv, NULL, NULL); m_hVFDrv = 0; } } // CBackDlg::OnStop() BOOL CBackDlg::InitEncodeVideoVxD(void) { DWORD dwValue; WORD wWidth, wHeight; wWidth=352; wHeight=240; dwValue=MAKELONG(wWidth, wHeight); HVFSet(m_hVFDrv, m_bStream, VF_INDEX_VID_OUTPUTSIZE, dwValue); /* SDL - also set video width and height to scale images */ wWidth = (wWidth * 45) / 44; // try to maintain standard MPEG SIF aspect ratio dwValue = MAKELONG(wWidth, wHeight /* [sic] */); HVFSet(m_hVFDrv, m_bStream, VF_INDEX_VID_INPUTSIZE, dwValue); HVFSet(m_hVFDrv, m_bStream, VF_INDEX_VID_BITRATE, BITRATE_DEFAULT); HVFSet(m_hVFDrv, m_bStream, VF_INDEX_VID_RATE, VF_FLAG_VID_25); HVFSet(m_hVFDrv, m_bStream, VF_INDEX_VID_IINTERVAL, IINTERVAL_DEFAULT); HVFSet(m_hVFDrv, m_bStream, VF_INDEX_VID_BINTERVAL, PINTERVAL_DEFAULT); HVFSet(m_hVFDrv, m_bStream, VF_INDEX_VID_MODE, VF_FLAG_VID_PAL); HVFSet(m_hVFDrv, m_bStream, VF_INDEX_VID_SOURCE, VF_FLAG_VID_COMPOSITE); HVFSet(m_hVFDrv, m_bStream, VF_INDEX_VID_ALGORITHM, VF_FLAG_VID_MPEG); HVFSet(m_hVFDrv, m_bStream, VF_INDEX_VID_BRIGHTNESS, BRIGHTNESS_DEFAULT); HVFSet(m_hVFDrv, m_bStream, VF_INDEX_VID_CONTRAST, CONTRAST_DEFAULT); HVFSet(m_hVFDrv, m_bStream, VF_INDEX_VID_HUE, HUE_DEFAULT); HVFSet(m_hVFDrv, m_bStream, VF_INDEX_VID_SATURATION, SATURATION_DEFAULT); return TRUE; } BOOL CBackDlg::InitEncodeAudioVxD(void) { DWORD dwValue; HVFSet(m_hVFDrv, m_bStream, VF_INDEX_AUD_SAMPLE, SAMPLE_RATE_DEFAULT); HVFSet(m_hVFDrv, m_bStream, VF_INDEX_AUD_BITRATE, BIT_RATE_DEFAULT); dwValue=VF_FLAG_AUD_MPEG; // set to MPEG algorithm dwValue=(dwValue<<16)+VF_FLAG_AUD_NONE; HVFSet(m_hVFDrv, m_bStream, VF_INDEX_AUD_ALGORITHM, dwValue); HVFSet(m_hVFDrv, m_bStream, VF_INDEX_AUD_MODE, MODE_DEFAULT); HVFSet(m_hVFDrv, m_bStream, VF_INDEX_AUD_VOLUME, VOLUME_MIN); HVFSet(m_hVFDrv, m_bStream, VF_INDEX_AUD_VOLUME, VOLUME_DEFAULT); HVFSet(m_hVFDrv, m_bStream, VF_INDEX_AUD_GAIN, GAIN_DEFAULT); return TRUE; } BOOL CBackDlg::InitEncodeSystemVxD(void) { if(cbSystem->GetCheck()){ HVFSet(m_hVFDrv, m_bStream, VF_INDEX_STM_TYPE, VF_FLAG_MPGSYS); } else { if(cbVideo->GetCheck()){ HVFSet(m_hVFDrv, m_bStream, VF_INDEX_STM_TYPE, VF_FLAG_MPGVID); } else { HVFSet(m_hVFDrv, m_bStream, VF_INDEX_STM_TYPE, VF_FLAG_MPGAUD); } } HVFSet(m_hVFDrv, m_bStream, VF_INDEX_STM_ENCODEMODE, VF_FLAG_STM_NORMAL); return TRUE; }