📄 playview.cpp

📁 <VC++视频音频开发>一书的光盘资料。
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    WORD flags;
	//打开设备驱动
    m_hVFDrv = OpenDriver (L"av8api.dll", NULL, NULL);
    if (!m_hVFDrv)
    {
		MessageBox("Can't OpenDriver()");
        return -1;
	}
	//检查是否有设备驱动可用，如有，将打开的设备与驱动程序关联起来
    if (!HVFAssign(m_hVFDrv, 0))
    {
        MessageBox("没有合适的视频设备!");
        return -1;
    }
	//锁定设备
	HVFLock(m_hVFDrv, VF_CAP_ALL);
	
    flags = VF_FLAG_MPEG | VF_FLAG_ENCODE | VF_FLAG_OUTBUF;
	//打开流数据
    m_bStream = static_cast<BYTE> (HVFOpen(m_hVFDrv, flags, 
		reinterpret_cast<unsigned long>(MyCallBack)));
	//配置流数据的编码信息
   	InitEncodeVideoVxD();
    InitEncodeAudioVxD(); 
	//开始采集数据
	if (m_bStream) 
        HVFRecord(m_hVFDrv, m_bStream, NULL, NULL);
	return 0;
}

void CPlayView::ClearDriver()
{
	//将流数据的大小置为0
    m_bStream = 0;
    if (m_hVFDrv)
    {
        //停止采集数据
		HVFStop(m_hVFDrv, m_bStream);
		//关闭流数据
        HVFClose(m_hVFDrv, m_bStream);
		//释放设备
        HVFUnlock(m_hVFDrv, VF_CAP_ALL);
		//关闭设备驱动
        CloseDriver(m_hVFDrv, NULL, NULL);
		//将驱动句柄置为0
        m_hVFDrv = 0;
		//采集标志设为FALSE
		m_Capture=FALSE;
     }
}

//配置视频流的编码信息
void CPlayView::InitEncodeVideoVxD()
{
   
    DWORD dwValue;
    WORD  wWidth, wHeight;
	
    wWidth  = 352;
    wHeight = 288;
    dwValue = MAKELONG(wWidth, wHeight);
	//设置视频的输出大小，取MAKELONG(352, 288)
    HVFSet(m_hVFDrv, m_bStream, VF_INDEX_VID_OUTPUTSIZE, dwValue);
	
    wWidth = (wWidth * 45) / 44; 
    dwValue = MAKELONG(wWidth, wHeight);
	//设置视频的输入大小，取MAKELONG(360, 288)
	HVFSet(m_hVFDrv, m_bStream, VF_INDEX_VID_INPUTSIZE, dwValue);
	//设置视频的比特率，取1152000bits/s
    HVFSet(m_hVFDrv, m_bStream, VF_INDEX_VID_BITRATE, BITRATE_DEFAULT);	
	//设置视频帧速，25帧/s
    HVFSet(m_hVFDrv, m_bStream, VF_INDEX_VID_RATE, VF_FLAG_VID_25);
	//设置MPEG压缩的I帧间隔，取15 
    HVFSet(m_hVFDrv, m_bStream, VF_INDEX_VID_IINTERVAL, IINTERVAL_DEFAULT);
	//设置MPEG压缩的P帧间隔，取3
    HVFSet(m_hVFDrv, m_bStream, VF_INDEX_VID_BINTERVAL, PINTERVAL_DEFAULT);
	//设置视频的制式，采用PAL制式
    HVFSet(m_hVFDrv, m_bStream, VF_INDEX_VID_MODE, VF_FLAG_VID_PAL);
	//设置视频的输入源的类型，采用混合类型
    HVFSet(m_hVFDrv, m_bStream, VF_INDEX_VID_SOURCE, VF_FLAG_VID_COMPOSITE);
	//设置视频的压缩算法，采用MPEG编码
    HVFSet(m_hVFDrv, m_bStream, VF_INDEX_VID_ALGORITHM, VF_FLAG_VID_MPEG);
	//设置视频的亮度
    HVFSet(m_hVFDrv, m_bStream, VF_INDEX_VID_BRIGHTNESS, BRIGHTNESS_DEFAULT);
	//设置视频的对比度
    HVFSet(m_hVFDrv, m_bStream, VF_INDEX_VID_CONTRAST, CONTRAST_DEFAULT);		   
	//设置视频的色调
    HVFSet(m_hVFDrv, m_bStream, VF_INDEX_VID_HUE, HUE_DEFAULT);		
	//设置视频的饱和度
    HVFSet(m_hVFDrv, m_bStream, VF_INDEX_VID_SATURATION, SATURATION_DEFAULT);

}



void CPlayView::DiskSpace(TCHAR sDriver)
{//检查磁盘空间
	struct _diskfree_t diskfree;
	int nDriver =sDriver-'A'+1; 
	if (_getdiskfree(nDriver, &diskfree) == 0)
	{
		FreeDiskSpace.Format("硬盘%c剩余:%luMB",sDriver,
			(DWORD)diskfree.avail_clusters *
			(DWORD)diskfree.sectors_per_cluster *
			(DWORD)diskfree.bytes_per_sector / ((DWORD)1024L*(DWORD)1024L));
	}
	else
		return;
}

void CPlayView::OnCaptureSave() 
{
	// TODO: Add your command handler code here
	CString strCaptureSave;
	TCHAR Driver;
	CMainFrame* pFrame=(CMainFrame*)AfxGetApp()->m_pMainWnd;
	CFileDialog FileDlg(TRUE,NULL,"temp",NULL,"mpeg文件(*.mpg)|*.mpg|AVI文件(*.avi)|*.avi");
	FileDlg.m_ofn.lpstrInitialDir="c:\\temp";
	CStopModeDlg StopModeDlg;
	FileDlg.m_ofn.lpstrTitle="指定采集文件名";
	if(FileDlg.DoModal()==IDOK)
	{
		//选择采集文件
		CapFileName=FileDlg.GetPathName();
        Driver=CapFileName.GetAt(0);
        strCaptureSave.Format("采集到：%s",CapFileName);
		//检查磁盘剩余空间
		DiskSpace(Driver);
        CMainFrame* pFrame=(CMainFrame*)AfxGetApp()->m_pMainWnd;
        pFrame->m_wndStatusBar.SetPaneText(1,strCaptureSave);
		pFrame->m_wndStatusBar.SetPaneText(2,FreeDiskSpace);
		//选择自动停止采集方式
        if(StopModeDlg.DoModal()==IDOK)
		{ 
			if(StopModeDlg.m_SizeCheck)
			{//选择根据文件大小停止
				sscanf(StopModeDlg.m_size,"%f",&m_size);
				m_SizeCheck=StopModeDlg.m_SizeCheck;
			}
			if(StopModeDlg.m_TimeCheck)
			{//选择根据采集时间停止
				sscanf(StopModeDlg.m_time,"%d",&m_time);
				m_TimeCheck=StopModeDlg.m_TimeCheck;
			}
		}
	}
}




void CPlayView::OnBeginCapture() 
{
	// TODO: Add your command handler code here
	DWORD dwFlags = 0;
    RECT Srct,Erct,Prct;
    int width;
    UINT Sid;
    UINT SStyle;
	//如果当前不在实时发送数据而且不在采集，
	//对设备进行初始化，开始采集数据
	if((!m_RealSend)&&(!m_Capture))
	   if(InitDriver()<0)
	    	return;
	//采集标志设为TRUE
    m_Capture=TRUE;
	LPSTR caFileName=CapFileName.GetBuffer(_MAX_PATH);
	CapFileName.ReleaseBuffer();
	dwFlags = MMIO_CREATE | MMIO_WRITE;
	//打开采集文件
	hmmioOutput = mmioOpen(caFileName, (LPMMIOINFO)NULL, dwFlags);

	//在状态栏中显示相关信息
 	CMainFrame* pFrame=(CMainFrame*)AfxGetApp()->m_pMainWnd;
	pFrame->m_wndStatusBar.SetPaneText(0,"");
	pFrame->m_wndStatusBar.GetPaneInfo(0,Sid,SStyle,width);
 	::GetClientRect(pFrame->m_wndStatusBar.m_hWnd,&Prct);
	Srct.left=10;
    Srct.top=4;
    Srct.right=width/2-20;
    Srct.bottom=Prct.bottom-1;
    Erct.left=width/2;
    Erct.top=4;
 	Erct.right=width-10;
 	Erct.bottom=Prct.bottom-1;
    m_static.Create(_T("已采集(时:分:秒)"),WS_CHILD|WS_VISIBLE|SS_LEFT,
	Srct,&pFrame->m_wndStatusBar,ID_STATIC);
	m_static.SetFont(&m_font);
	m_edit.Create(ES_CENTER|WS_BORDER|WS_VISIBLE,Erct,&pFrame->m_wndStatusBar,ID_EDIT);
    m_edit.SetWindowText("00:00:00");

	//采集定时器标志设为TRUE
    m_TCapture=TRUE;
	//设定计时器
	SetTimer(ID_TIMER,1000,NULL);	
}

void CPlayView::OnStopCapture() 
{
	//关闭计时器
    KillTimer(ID_TIMER);
	//采集定时器标志设为FALSE
    m_TCapture=FALSE;
	//如果现在不在实时发送数据，
	//停止采集数据，并关闭相关设备
	if(!m_RealSend)
		ClearDriver();
	//关闭采集文件
   	FILE_CLOSE(hmmioOutput);

	Ts=CTimeSpan(0,0,0,0);
	m_static.DestroyWindow();
	m_edit.DestroyWindow();
	CMainFrame* pFrame=(CMainFrame*)AfxGetApp()->m_pMainWnd;
 	pFrame->m_wndStatusBar.SetPaneText(0,"停止采集");

}


void CPlayView::OnPauseCapture() 
{
	//关闭计时器
	KillTimer(ID_TIMER);
	//采集计时器标志设为FALSE
    m_TCapture=FALSE;
	//暂停采集
	HVFPause(m_hVFDrv, m_bStream);
	CMainFrame* pFrame=(CMainFrame*)AfxGetApp()->m_pMainWnd;
	pFrame->m_wndStatusBar.SetPaneText(0,"暂停采集");
	
}

void CPlayView::OnResumeCapture() 
{
	// TODO: Add your command handler code here
	//继续采集
	HVFResume(m_hVFDrv, m_bStream);
	//采集计时器标志设为TRUE
	m_TCapture=TRUE;
	//设定计时器
	SetTimer(ID_TIMER,1000,NULL);
	CMainFrame* pFrame=(CMainFrame*)AfxGetApp()->m_pMainWnd;
	pFrame->m_wndStatusBar.SetPaneText(0,"");
	
}




void CPlayView::OnOpenPlayfile() 
{
	CString FTemp;	 	

	CFileDialog dlg(TRUE,NULL,NULL,NULL,"mpeg文件(*.mpg)|*.mpg|AVI文件(*.avi)|*.avi");
	dlg.m_ofn.lpstrTitle="打开多媒体文件";
	//dlg.m_ofn.lpstrInitialDir="c:\\Windows\\Temp";
	CMainFrame* pFrame=(CMainFrame*)AfxGetApp()->m_pMainWnd;
	if(dlg.DoModal()==IDOK)
	{
	    Fname=dlg.GetPathName();
	   	FTemp.Format("播放:%s",Fname);
		pFrame->m_wndStatusBar.SetPaneText(0,"停止");
    	pFrame->m_wndStatusBar.SetPaneText(1,FTemp);
	} 	
}

void CPlayView::OnPlayfile() 
{
	// TODO: Add your command handler code here
	RECT Srct,Prct;
 	int width;
 	UINT Sid;
    UINT SStyle;
	CMainFrame* pFrame=(CMainFrame*)AfxGetApp()->m_pMainWnd;
	if(!pVideoPlay)
		pVideoPlay=new CVideoPlay(this->m_hWnd);
   	pFrame->m_wndStatusBar.SetPaneText(0,"播放");
 	pFrame->m_wndStatusBar.GetPaneInfo(0,Sid,SStyle,width);
 	::GetClientRect(pFrame->m_wndStatusBar.m_hWnd,&Srct);
    Prct.left=40;
 	Prct.top=4;
 	Prct.right=width;
 	Prct.bottom=Srct.bottom-1;
 	m_prog.Create(PBS_SMOOTH,Prct,&pFrame->m_wndStatusBar,ID_PROGRESS);
   	pVideoPlay->PlayFromFile(Fname);  
	m_prog.SetRange(0,(int)pVideoPlay->tLength);
    m_prog.ShowWindow(SW_SHOW);
	m_TPlayFile=TRUE;
 	SetTimer(ID_TIMER,1000,NULL);
}


LRESULT CPlayView::OnPlayOver(WPARAM wParam,LPARAM lParam)
{
	int status;
	status=pVideoPlay->PlayOver();
	if(status==0)
	{
		KillTimer(ID_TIMER);
		m_prog.DestroyWindow();
		CMainFrame* pFrame=(CMainFrame*)AfxGetApp()->m_pMainWnd;
		pFrame->m_wndStatusBar.SetPaneText(0,"停止");
		Pos=0;
		Ts=CTimeSpan(0,0,0,0);
		m_TPlayFile=FALSE;
	}
	return 0;
}

void CPlayView::OnFileStop() 
{
	// TODO: Add your command handler code here
	KillTimer(ID_TIMER);
	m_prog.DestroyWindow();
	CMainFrame* pFrame=(CMainFrame*)AfxGetApp()->m_pMainWnd;
	pFrame->m_wndStatusBar.SetPaneText(0,"停止");
    Pos=0;
    Ts=CTimeSpan(0,0,0,0);
	m_TPlayFile=FALSE;
	RELEASE_CVIDEOPLAY;
}

void CPlayView::OnRealplay() 
{
	// TODO: Add your command handler code here
	int i,MenuCount;
	CMainFrame* pFrame=(CMainFrame*)AfxGetApp()->m_pMainWnd;
    pVideoPlay=new CVideoPlay(this->m_hWnd);
	pVideoPlay->RealPlay();
	pFrame->m_wndStatusBar.SetPaneText(0,"实时播放");
	pFrame->m_wndStatusBar.SetPaneText(1,"");
	CMenu* pSubMenu=PopMenu.GetSubMenu(0);
	MenuCount=pSubMenu->GetMenuItemCount();	
	for(i=0;i<2;i++)
		pSubMenu->EnableMenuItem(i,MF_ENABLED|MF_BYPOSITION); 
	
}

void CPlayView::OnRealStop() 
{
	// TODO: Add your command handler code here
	CMainFrame* pFrame=(CMainFrame*)AfxGetApp()->m_pMainWnd;
	pFrame->m_wndStatusBar.SetPaneText(0,"");
	RELEASE_CVIDEOPLAY;
}

void CPlayView::OnTimer(UINT nIDEvent) 
{
	// TODO: Add your message handler code here and/or call default
	CTimeSpan TsAdd(1);
	Ts=TsAdd+Ts;
	if(m_TPlayFile)
	{
		CString s1 =Ts.Format("已播放:%H:%M:%S");
		Pos=Pos+1;
		m_prog.SetPos(Pos);
		CDC* pControlDC=m_prog.GetDC();  
		CFont* pOldFont = (CFont*) pControlDC->SelectObject(&m_font); 
		//CPen* pOldPen =(CPen*) pControlDC->SelectObject(&Wpen);
		int iOld = pControlDC->GetBkMode();
		int iOldMode = pControlDC->GetROP2();
		pControlDC->SetROP2(R2_XORPEN);
		CRect rc;
		m_prog.GetClientRect(&rc);
		pControlDC->SetBkMode(TRANSPARENT);
		m_prog.Invalidate();
		m_prog.UpdateWindow();
		pControlDC->DrawText(s1, &rc, DT_CENTER | DT_VCENTER);
		pControlDC->SelectObject(pOldFont);
		pControlDC->SetROP2(iOldMode);
		pControlDC->SetBkMode(iOld);
		m_prog.ReleaseDC(pControlDC);
	}
	if(m_TCapture)
	{
		CString s2 =Ts.Format("%H:%M:%S");
		m_edit.SetWindowText(s2);
		if(m_TimeCheck)
		{
			m_TimeIndex++;
			if(m_TimeIndex==m_time+1)
			{
				OnStopCapture();
				MessageBox("采集时间到，停止采集");
				m_TimeCheck=FALSE;
				m_TimeIndex=0;
			}
		}
	}
	CView::OnTimer(nIDEvent);
}


void CPlayView::OnPausePlay() 
{
	// TODO: Add your command handler code here
	pVideoPlay->PausePlay();
	KillTimer(ID_TIMER);
	CMainFrame* pFrame=(CMainFrame*)AfxGetApp()->m_pMainWnd;
	pFrame->m_wndStatusBar.SetPaneText(0,"暂停");
}

void CPlayView::OnResumePlay() 
{
	// TODO: Add your command handler code here
	pVideoPlay->ResumePlay();
	SetTimer(ID_TIMER,1000,NULL);
	CMainFrame* pFrame=(CMainFrame*)AfxGetApp()->m_pMainWnd;
    pFrame->m_wndStatusBar.SetPaneText(0,"播放");
}

void CPlayView::InitEncodeSystemVxD()
{
    HVFSet(m_hVFDrv, m_bStream, VF_INDEX_STM_TYPE, VF_FLAG_MPGSYS);
	HVFSet(m_hVFDrv, m_bStream, VF_INDEX_STM_ENCODEMODE, VF_FLAG_STM_NORMAL);
}




/////////////////////////////////////////////////////////////////////////////
// CMyEdit

IMPLEMENT_DYNAMIC(CMyEdit,CEdit)

CMyEdit::CMyEdit()
{
	m_clrFont =RGB(0 , 255 , 0) ;   // yellow text 

	m_clrBack=RGB(0 , 0 , 0) ;    // blue background 

	m_brush.CreateSolidBrush(m_clrBack); 

	m_font.CreatePointFont(90, "宋体");
}

CMyEdit::~CMyEdit()
{
}


BEGIN_MESSAGE_MAP(CMyEdit, CEdit)
	//{{AFX_MSG_MAP(CMyEdit)
	ON_WM_CREATE()
	ON_WM_CTLCOLOR_REFLECT()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CMyEdit message handlers

int CMyEdit::OnCreate(LPCREATESTRUCT lpCreateStruct) 
{
	if (CEdit::OnCreate(lpCreateStruct) == -1)
		return -1;
	
	// TODO: Add your specialized creation code here
	SetFont(&m_font);
	return 0;
}

HBRUSH CMyEdit::CtlColor(CDC* pDC, UINT nCtlColor) 
{
	// TODO: Change any attributes of the DC here
	pDC->SetTextColor (m_clrFont); 
    pDC->SetBkMode(TRANSPARENT); 
    return (HBRUSH)m_brush.GetSafeHandle (); 

}


//配置音频流的编码信息
void CPlayView::InitEncodeAudioVxD()
{
    DWORD dwValue;
	//设置音频的采样率，取默认值44100 kHz
	HVFSet(m_hVFDrv, m_bStream, VF_INDEX_AUD_SAMPLE, SAMPLE_RATE_DEFAULT);
	//设置音频的比特率，取默认值224000bits/s
	HVFSet(m_hVFDrv, m_bStream, VF_INDEX_AUD_BITRATE, BIT_RATE_DEFAULT);

	dwValue=VF_FLAG_AUD_MPEG;	
	dwValue=(dwValue<<16)+VF_FLAG_AUD_NONE;
	//设置音频的压缩算法，采用MPEG编码
	HVFSet(m_hVFDrv, m_bStream, VF_INDEX_AUD_ALGORITHM, dwValue);
	//设置音频方式，为立体声
	HVFSet(m_hVFDrv, m_bStream, VF_INDEX_AUD_MODE, MODE_DEFAULT);
	//设置音频的音量大小，取默认值100
	HVFSet(m_hVFDrv, m_bStream, VF_INDEX_AUD_VOLUME, VOLUME_DEFAULT);
	//设置音频电平，取默认值0
	HVFSet(m_hVFDrv, m_bStream, VF_INDEX_AUD_GAIN, GAIN_DEFAULT);
}



BOOL CPlayView::OnEraseBkgnd(CDC* pDC) 
{
	// TODO: Add your message handler code here and/or call default
	// Create a pruple brush. 

	CBrush Brush (RGB (0,0,255) ); 
	CBrush* pOldBrush = pDC->SelectObject(&Brush); 
	CRect reClip ; 
	pDC->GetClipBox(&reClip); 
	pDC->PatBlt (reClip.left , reClip.top , 
    reClip.Width ( ) , reClip.Height ( ) , PATCOPY ); 
	pDC->SelectObject (pOldBrush ); 
	return TRUE; 

}
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