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C# 视频监控系列(13):H264播放器——控制播放和截图

 2009-04-08 08:23:29 来源:WEB开发网   
核心提示:一、控制播放1.1暂停/播放/停止VC++ Code://Funtion:Playorchangetheplayspeedtonormal;///voidCPlayerDlg::OnPlay(){//TODO:AddyourcontrolnotificationhandlercodeherePlay();}voidCP

一、控制播放

1.1     暂停/播放/停止

VC++ Code:

////////////////////////////////////////////////////////////////////////////////
//Funtion:Play or change the play speed to normal;
///////////////////////////////////////////////////////////////////////////////
void CPlayerDlg::OnPlay() 
{
    // TODO: Add your control notification handler code here
    Play();
}

void CPlayerDlg::Play()
{
    m_nSpeed=0;
    OnThrow0();
//#ifdef _TEST_CALLBACK
    if(m_bConvert)       
       Hik_PlayM4_SetDecCallBack(PORT,DecCBFun);
    else
        m_pMainMenu->EnableMenuItem(ID_FILE_CLOSE, FALSE);
//#endif
    if(m_bPlaying)
    {
        Hik_PlayM4_Play(PORT,GetDlgItem(IDC_SHOW)->m_hWnd);
    }
    else
    {
        if(m_bStreamType)
        {
            ::SetFilePointer(m_hStreamFile,m_nHeadSize,0,FILE_BEGIN);
            Hik_PlayM4_ResetSourceBuffer(PORT);
            SetEvent(m_hEventInput);
        }
        m_bPlaying = Hik_PlayM4_Play(PORT,GetDlgItem(IDC_SHOW)->m_hWnd);
        m_bSound=Hik_PlayM4_PlaySound(PORT);
        if(m_bPlaying)
            SetTimer(PLAY_TIMER,500,NULL);
        
    }
    if(m_bPlaying)

        SetPlayState();
    else
    {
        CString csError;
        csError.Format("Play the file faild.(%d)",Hik_PlayM4_GetLastError(PORT));
        AfxMessageBox(csError);
    }
    
}
//////////////////////////////////////////////////////////////////////////////
//Funtion:pause.
//////////////////////////////////////////////////////////////////////////////
void CPlayerDlg::OnPause() 
{
    // TODO: Add your control notification handler code here
    if(m_bPlaying)
    {
        m_bPause=!m_bPause;
        Pause(m_bPause);
    }
}
void CPlayerDlg::Pause(BOOL bPause)
{
    if(m_bPaused == bPause)
        return;
    m_bPaused=bPause;
    Hik_PlayM4_Pause(PORT,bPause);
    TRACE("PAUSE %dn",m_bPaused);
}
/////////////////////////////////////////////////////////////////////////////
//Function: Stop
/////////////////////////////////////////////////////////////////////////////
void CPlayerDlg::OnStop() 
{
    // TODO: Add your control notification handler code here
    
    if(m_bPlaying)
    {
        Stop();
    }
    if(m_bConvert)
    {
       if(outFile!=NULL)
          closeWriffFiles();    
       if(yuvBuf!=NULL)
       {
           free(yuvBuf);
           yuvBuf=NULL;
       }
       m_bConvert=0;    

       //C# 视频监控系列(13):H264播放器——控制播放和截图
    }
}
void CPlayerDlg::Stop()
{
    CButton *pButton;
    if(!m_bPlaying)
        return;
    KillTimer(PLAY_TIMER);
    if(Hik_PlayM4_StopSound())
    {
        m_bSound=FALSE;
        pButton = (CButton *)GetDlgItem(IDC_SOUND);
        pButton->SetIcon(m_hSoundStopIcon);
    }
    //continue before stop.Add by lgl at 9-19;
    m_bPause=FALSE;
    
    //stop
    m_bPlaying = !Hik_PlayM4_Stop(PORT);
    if(!m_bPlaying)    
    {
        SetStopState();
        if(m_bStreamType)
            ResetEvent(m_hEventInput);
    }

    
}

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Tags:视频监控 系列 播放器

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