監(jiān)控系統(tǒng)原有視頻上墻代碼研究

一、監(jiān)控方案分析。監(jiān)控原有文檔中相關上墻方案以下。電視墻控制步驟以下圖所表示:電視墻控制步驟登錄后從AAS服務器獲取電視墻配置假如沒有電視墻配置,則進行電視墻分屏方法編輯,電視墻分屏與解碼器關聯(lián)設置,設置分屏對應通道或是通道序列,都會經(jīng)過AAS保留配置對于電視墻每一個分屏,將其對應通道打開,或是將其對應通道序列依次打開該方案與實際代碼不符合。代碼中唯一可能方案以下。為何說可能,因為代碼有原有方案相關代碼,即使這些代碼大部分被屏蔽掉了,但還有一部分在用,經(jīng)過分析也沒發(fā)覺在用這一部分到底有什么用。2、個人分析原有監(jiān)控代碼得出可能方案:1）前提條件:每個裝有VCT（視頻、指揮、監(jiān)控三合一用戶端）PC上配一張視頻解碼卡。2）具體上墻原理:每個視頻播放窗口與解碼卡一個通道綁定,這么播放窗口視頻在播放同時輸送到與目前播放窗口綁定解碼卡通道中。解碼卡與電視墻直接相連,這么畫面也就顯示到電視墻上了。視頻上墻原理圖二、視頻上墻關鍵代碼.1、輸出流到視頻解碼卡某個通道中。BOOLCCDMMediaPlayer::InPutYUVStream(longnChannel,char*streamPtr,intwidth,intheight,intcolorspace){ if(nChannel<HB15_GetChannels()) { CStringstrLog; time_tt; time(&t); structtm*pTM=localtime(&t); intret=0; ret=HB15_InputData(nChannel,streamPtr,width,height,colorspace); if(ret>0) { returnTRUE; } else { strLog.Format(_T("%02d:%02d:%02dInPutYUVStreamerrorchnl[%d],ret:[%d],w[%d],h[%d]."), pTM->tm_hour,pTM->tm_min,pTM->tm_sec,nChannel,ret,width,height); theLog.WriteLog(strLog); returnFALSE; } } returnFALSE;}底層OCX控件將視頻流傳給上層步驟。BEGIN_EVENTSINK_MAP(CCDMClientOcxCtrlDlg,CDialog) ON_EVENT(CCDMClientOcxCtrlDlg,IDC_IPCDMCLIENT,3,CCDMClientOcxCtrlDlg::FileInfoNotifyIpcdmclient,VTS_BSTRVTS_BSTRVTS_BSTRVTS_I4) ON_EVENT(CCDMClientOcxCtrlDlg,IDC_IPCDMCLIENT,1,CCDMClientOcxCtrlDlg::NotifyIpcdmclient,VTS_BSTRVTS_I4) ON_EVENT(CCDMClientOcxCtrlDlg,IDC_IPCDMCLIENT,2,CCDMClientOcxCtrlDlg::AlarmNotifyIpcdmclient,VTS_BSTRVTS_BSTRVTS_BSTRVTS_BSTRVTS_BSTRVTS_BSTRVTS_I4VTS_BSTRVTS_I4VTS_I4) ON_EVENT(CCDMClientOcxCtrlDlg,IDC_IPCDMCLIENT,4,CCDMClientOcxCtrlDlg::SubEventNotifyIpcdmclient,VTS_BSTRVTS_BSTRVTS_BSTRVTS_BSTR) ON_EVENT(CCDMClientOcxCtrlDlg,IDC_IPCDMCLIENT,6,CCDMClientOcxCtrlDlg::SubExchangeNotifyIpcdmclient,VTS_BSTRVTS_I4VTS_BSTR) ON_EVENT(CCDMClientOcxCtrlDlg,IDC_IPCDMCLIENT,7,CCDMClientOcxCtrlDlg::StreamNotifyIpcdmclient,VTS_I4VTS_I4) ON_EVENT(CCDMClientOcxCtrlDlg,IDC_IPCDMCLIENT,8,CCDMClientOcxCtrlDlg::KickoffNotifyIpcdmclient,VTS_I4) ON_EVENT(CCDMClientOcxCtrlDlg,IDC_IPCDMCLIENT,9,CCDMClientOcxCtrlDlg::TVStreamNotifyIpcdmclient,VTS_I4VTS_I4VTS_I4VTS_I4VTS_I4)END_EVENTSINK_MAP()voidCCDMClientOcxCtrlDlg::TVStreamNotifyIpcdmclient(longnChannel,longstreamPtr,longwidth,longheight,longcolorspace){ if(m_pNotifyReceiver){ m_pNotifyReceiver->OnTVStreamNotify(nChannel,streamPtr,width,height,colorspace); }}打開某窗口流上墻開關BOOLCMultiDisplayDlg::OpenLive(intnWndIndex,CChannel*pChannel){ if(!IS_VALID_PLAYWND_INDEX(nWndIndex)) { returnFALSE; } m_lpPlyInfo[nWndIndex].lpPlayer->Stop(); BOOLbOpen=m_lpPlyInfo[nWndIndex].lpPlayer->OpenLive(pChannel); m_lpPlyInfo[nWndIndex].lpPlayer->GetMediaPlayer()->AdaptWnd(m_bAllAdapt); m_lpPlyInfo[nWndIndex].lpPlayer->GetMediaPlayer()->OpenTVChannel(nWndIndex); CDisplayMessageMessage(DISPLAY_STREAM_SOURCE_CHANGED,this); Message.m_nWndIndex=nWndIndex; Message.Send(); returnbOpen;}BOOLCCDMMediaPlayer::OpenTVChannel(intnChannel){ if(theAppData.IsOutToTVWall()) { if(!m_bOpenChannel[nChannel]) { unsignedintn=HB15_GetChannels(); if(nChannel<n) { m_CDMClientPlayer.m_CDMClientOcxCtrl.IsTvOpenChannel(nChannel,TRUE); CStringstrLog; strLog.Format(_T("IsTvOpenChannelChnl[%d]."),nChannel); theLog.WriteLog(strLog); if(HB15_OpenChannel(nChannel)) { // HB15_ClearVideoOutput(nChannel); CStringstrLog; strLog.Format(_T("HB15_OpenChannelChnl[%d]"),nChannel); theLog.WriteLog(strLog); m_bOpenChannel[nChannel]=TRUE; returnTRUE; } else//ifopenerror,thenuinit/initcardagain. { CStringstrLog; strLog.Format(_T("HB15_OpenChannelChnl[%d]error."),nChannel); theLog.WriteLog(strLog); UninitTVCard(); InitTVCard(); CCDMPlatformCli