www.pudn.com > AVCapture.rar > wavDlg.cpp

// wavDlg.cpp : implementation file 
// 
 
#include "stdafx.h" 
#include "wav.h" 
#include "wavDlg.h" 
#include  
#include  
#include  
#include "objbase.h" 
 
#ifdef _DEBUG 
#define new DEBUG_NEW 
#undef THIS_FILE 
static char THIS_FILE[] = __FILE__; 
#endif 
 
 
 
///////////////////////////////////////////////////////////////////////////// 
// CAboutDlg dialog used for App About 
static const GUID CLSID_WavDest = 
{ 0x3c78b8e2, 0x6c4d, 0x11d1, { 0xad, 0xe2, 0x0, 0x0, 0xf8, 0x75, 0x4b, 0x99 } }; 
 
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() 
 
///////////////////////////////////////////////////////////////////////////// 
// CWavDlg dialog 
 
CWavDlg::CWavDlg(CWnd* pParent /*=NULL*/) 
	: CDialog(CWavDlg::IDD, pParent) 
{ 
	//{{AFX_DATA_INIT(CWavDlg) 
		// 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); 
	m_IsRecorded = FALSE; 
	m_IsPause = FALSE; 
} 
 
void CWavDlg::DoDataExchange(CDataExchange* pDX) 
{ 
	CDialog::DoDataExchange(pDX); 
	//{{AFX_DATA_MAP(CWavDlg) 
	DDX_Control(pDX, IDOK2, m_Pause); 
	DDX_Control(pDX, IDC_EDIT1, m_WavFile); 
	//}}AFX_DATA_MAP 
} 
 
BEGIN_MESSAGE_MAP(CWavDlg, CDialog) 
	//{{AFX_MSG_MAP(CWavDlg) 
	ON_WM_SYSCOMMAND() 
	ON_WM_PAINT() 
	ON_WM_QUERYDRAGICON() 
	ON_BN_CLICKED(IDC_BUTBROWN, OnButbrown) 
	ON_BN_CLICKED(IDOK2, OnOk2) 
	ON_BN_CLICKED(IDOK3, OnOk3) 
	//}}AFX_MSG_MAP 
END_MESSAGE_MAP() 
 
///////////////////////////////////////////////////////////////////////////// 
// CWavDlg message handlers 
 
BOOL CWavDlg::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); 
	if (pSysMenu != NULL) 
	{ 
		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 
	 
	return TRUE;  // return TRUE  unless you set the focus to a control 
} 
 
void CWavDlg::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 CWavDlg::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 CWavDlg::OnQueryDragIcon() 
{ 
	return (HCURSOR) m_hIcon; 
} 
 
void CWavDlg::OnOK()  
{ 
	CString str ; 
	m_WavFile.GetWindowText(str); 
	if (str.IsEmpty()) 
	{ 
		MessageBox("请选择或输入文件"); 
		return; 
	} 
 
	ICaptureGraphBuilder2 * pBuilder = NULL; 
 
	pGraph = NULL; 
 
	pMediaControl = NULL; 
 
	CoCreateInstance(CLSID_CaptureGraphBuilder2,0,CLSCTX_INPROC_SERVER,IID_ICaptureGraphBuilder2,(void**)&pBuilder); 
 
	CoCreateInstance(CLSID_FilterGraph, NULL, CLSCTX_INPROC_SERVER,  
                        IID_IGraphBuilder, (void **)&pGraph); 
 
	pBuilder->SetFiltergraph(pGraph); 
 
 
 
	pGraph->QueryInterface(IID_IMediaControl,(void**)&pMediaControl); 
 
	ICreateDevEnum *pDevEnum = NULL; 
	CoCreateInstance(CLSID_SystemDeviceEnum, NULL, CLSCTX_INPROC,  
		IID_ICreateDevEnum, (void **)&pDevEnum); 
 
 
	IEnumMoniker *pClassEnum = NULL; 
	pDevEnum->CreateClassEnumerator(CLSID_AudioInputDeviceCategory, &pClassEnum, 0); 
	ULONG cFetched; 
	if (pClassEnum->Next(1, &pMoniker, &cFetched) == S_OK)      
	{ 
		pMoniker->BindToObject(0, 0, IID_IBaseFilter, (void**)&pSrc); 
		pMoniker->Release();       
	} 
	pClassEnum->Release(); 
 
	 
	CoCreateInstance(CLSID_WavDest, NULL, CLSCTX_ALL,  
                        IID_IBaseFilter, (void **)&pWaveDest); 
 
	CoCreateInstance(CLSID_FileWriter, NULL, CLSCTX_ALL,  
                        IID_IBaseFilter, (void **)&pWriter); 
 
 
	pGraph->AddFilter(pSrc,L"Wav"); 
 
	pGraph->AddFilter(pWaveDest,L"WavDest"); 
 
	 
 
	pGraph->AddFilter(pWriter,L"FileWriter"); 
 
	pWriter->QueryInterface(IID_IFileSinkFilter2,(void**)&pSink); 
 
 
 
	pSink->SetFileName(str.AllocSysString(),NULL); 
 
	IPin* pOutpin = FindPin(pSrc,PINDIR_OUTPUT); 
 
	IPin* pInpin,*pOut;	 
	 
	pOut= FindPin(pWaveDest,PINDIR_OUTPUT); 
 
 
	AM_MEDIA_TYPE type; 
	type.majortype = MEDIATYPE_Stream; 
	type.subtype =MEDIASUBTYPE_WAVE; 
	type.formattype = FORMAT_None; 
	type.bFixedSizeSamples = FALSE; 
	type.bTemporalCompression = FALSE; 
	type.pUnk = NULL; 
 
 
	pInpin = FindPin(pWaveDest,PINDIR_INPUT); 
 
	IPin* pInpin1= FindPin(pWriter,PINDIR_INPUT);	 
 
		HRESULT result ; 
	result = pGraph->ConnectDirect(pOutpin,pInpin,NULL); 
 
	result = pGraph->ConnectDirect(pOut,pInpin1,NULL); 
 
 
	pMediaControl->Run(); 
	m_IsRecorded = TRUE; 
} 
 
IPin* CWavDlg::FindPin(IBaseFilter *pFilter, PIN_DIRECTION dir) 
{ 
	IEnumPins* pEnumPins; 
	IPin* pOutpin; 
	PIN_DIRECTION pDir; 
	pFilter->EnumPins(&pEnumPins); 
 
	while (pEnumPins->Next(1,&pOutpin,NULL)==S_OK) 
	{ 
		pOutpin->QueryDirection(&pDir); 
		if (pDir==dir) 
		{ 
			return pOutpin; 
		} 
	} 
	return 0; 
} 
 
void CWavDlg::OnCancel()  
{ 
	if (m_IsRecorded) 
	{ 
		pMediaControl->Stop(); 
		pMediaControl->Release(); 
		pGraph->Release(); 
		CoUninitialize(); 
	} 
	CDialog::OnCancel(); 
} 
 
//选择Wav文件 
void CWavDlg::OnButbrown()  
{ 
	CFileDialog FileDlg(TRUE,"WAV",NULL,OFN_HIDEREADONLY | OFN_OVERWRITEPROMPT,"声音文件|*.wav|",this); 
	if (FileDlg.DoModal()==IDOK) 
	{ 
		CString str; 
		str = FileDlg.GetPathName(); 
		m_WavFile.SetWindowText(str); 
	} 
} 
 
void CWavDlg::OnOk2()  
{ 
	if (m_IsRecorded) 
	{ 
		if (!m_IsPause) 
		{ 
			pMediaControl->Pause(); 
			m_Pause.SetWindowText("继续"); 
			m_IsPause = TRUE; 
		} 
		else 
		{ 
			pMediaControl->Run(); 
			m_Pause.SetWindowText("暂停"); 
			m_IsPause = FALSE; 
		} 
	} 
} 
 
void CWavDlg::OnOk3()  
{ 
	if (m_IsRecorded) 
	{ 
		pMediaControl->Stop(); 
	} 
}