Audio

开发平台：
Visual C++

WaveDlg.cpp：源码内容
							// WaveDlg.cpp : implementation file
//
#include "stdafx.h"
#include "Wave.h"
#include "WaveDlg.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
/////////////////////////////////////////////////////////////////////////////
// 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()
/////////////////////////////////////////////////////////////////////////////
// CWaveDlg dialog
CWaveDlg::CWaveDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CWaveDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CWaveDlg)
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
	bRecord = FALSE;
}
void CWaveDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CWaveDlg)
	DDX_Control(pDX, IDC_SOUND, m_Show);
	//}}AFX_DATA_MAP
}
BEGIN_MESSAGE_MAP(CWaveDlg, CDialog)
	//{{AFX_MSG_MAP(CWaveDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_START, OnStart)
	ON_BN_CLICKED(IDC_STOP, OnStop)
	//}}AFX_MSG_MAP
	ON_MESSAGE(MM_WIM_OPEN,OnOpenMessage)
	ON_MESSAGE(MM_WIM_CLOSE,OnCloseMessage)
	ON_MESSAGE(MM_WIM_DATA,OnDataMessage)
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CWaveDlg message handlers
BOOL CWaveDlg::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
	filter.Init(m_Show.GetSafeHwnd(),16);
	m_Compress = &m_G729aCompress;
	//m_Compress = &m_Gsm;
	return TRUE;  // return TRUE  unless you set the focus to a control
}
void CWaveDlg::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 CWaveDlg::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 CWaveDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}
void CWaveDlg::OnOpenMessage(WPARAM wParam,LPARAM lParam)
{
	TRACE("CWaveIn::Open()n");
}
void CWaveDlg::OnCloseMessage(WPARAM wParam,LPARAM lParam)
{
	TRACE("CWaveIn::Close()n");
}
void CWaveDlg::OnDataMessage(WPARAM wParam,LPARAM lParam)
{
	WAVEHDR* pWH=(WAVEHDR*)lParam;
	waveInUnprepareHeader((HWAVEIN)wParam,pWH,sizeof(WAVEHDR));
	if(pWH->dwBytesRecorded != SIZE_AUDIO_FRAME)
		return;
	if( !m_WaveIn.IsOpen() )
		return;
	if(filter.Filter((char*)pWH->lpData))
	{
		char buf2[1024];
		memset(buf,0,sizeof(buf));
		memset(buf1,0,sizeof(buf1));
		memcpy(buf,pWH->lpData,pWH->dwBytesRecorded);
		m_Compress->Compress(buf,pWH->dwBytesRecorded,
			buf2,&len);
		sprintf(buf1,"%s/","DATA");
		memcpy(buf1+5,buf2,len);
		memset(buf,0,sizeof(buf));
		m_Compress->UnCompress(&buf1[5],len,buf,&len1);
		m_WaveOut.Play(buf,len1);
	}
	waveInPrepareHeader((HWAVEIN)wParam,pWH,sizeof(WAVEHDR));
	waveInAddBuffer((HWAVEIN)wParam,pWH,sizeof(WAVEHDR));
}
void CWaveDlg::OnStart() 
{
	m_WaveIn.SetHwnd(GetSafeHwnd());
	m_WaveIn.Start();
	m_WaveOut.Start();
	bRecord = TRUE;
}
void CWaveDlg::OnStop() 
{
	m_WaveIn.Stop();
	m_WaveOut.Stop();
	bRecord = FALSE;
}
void CWaveDlg::OnCancel() 
{
	if( bRecord )
	{
		AfxMessageBox("Please stop recording!");
		return;
	}
	
	CDialog::OnCancel();
}

						