private void btnPreview_Click(object sender, EventArgs e)
{
if (m_lUserID < 0)
{
MessageBox.Show("Please login the device firstly!");
return;
}
if (m_bRecord)
{
MessageBox.Show("Please stop recording firstly!");
return;
}
if (m_lRealHandle < 0)
{
CHCNetSDK.NET_DVR_PREVIEWINFO lpPreviewInfo = new CHCNetSDK.NET_DVR_PREVIEWINFO();
lpPreviewInfo.hPlayWnd = RealPlayWnd.Handle;//预览窗口 live view window
lpPreviewInfo.lChannel = iChannelNum[(int)iSelIndex];//预览的设备通道 the device channel number
lpPreviewInfo.dwStreamType = 0;//码流类型：0-主码流，1-子码流，2-码流3，3-码流4，以此类推
lpPreviewInfo.dwLinkMode = 0;//连接方式：0- TCP方式，1- UDP方式，2- 多播方式，3- RTP方式，4-RTP/RTSP，5-RSTP/HTTP
lpPreviewInfo.bBlocked = true; //0- 非阻塞取流，1- 阻塞取流
IntPtr pUser = IntPtr.Zero;//用户数据 user data
if (comboBoxView.SelectedIndex == 0)
{
//打开预览 Start live view
m_lRealHandle = CHCNetSDK.NET_DVR_RealPlay_V40(m_lUserID, ref lpPreviewInfo, null/*RealData*/, pUser);
}
else //回调解码
{
lpPreviewInfo.hPlayWnd = IntPtr.Zero;//预览窗口 live view window
m_ptrRealHandle = RealPlayWnd.Handle;
RealData = new CHCNetSDK.REALDATACALLBACK(RealDataCallBack);//预览实时流回调函数 real-time stream callback function
m_lRealHandle = CHCNetSDK.NET_DVR_RealPlay_V40(m_lUserID, ref lpPreviewInfo, RealData, pUser);
}
if (m_lRealHandle < 0)
{
iLastErr = CHCNetSDK.NET_DVR_GetLastError();
str = "NET_DVR_RealPlay_V40 failed, error code= " + iLastErr; //预览失败，输出错误号 failed to start live view, and output the error code.
DebugInfo(str);
return;
}
else
{
//预览成功
DebugInfo("NET_DVR_RealPlay_V40 succ!");
btnPreview.Text = "Stop View";
}
}
else
{
//停止预览 Stop live view
if (!CHCNetSDK.NET_DVR_StopRealPlay(m_lRealHandle))
{
iLastErr = CHCNetSDK.NET_DVR_GetLastError();
str = "NET_DVR_StopRealPlay failed, error code= " + iLastErr;
DebugInfo(str);
return;
}
if ((comboBoxView.SelectedIndex == 1) && (m_lPort >= 0))
{
if (!PlayCtrl.PlayM4_Stop(m_lPort))
{
iLastErr = PlayCtrl.PlayM4_GetLastError(m_lPort);
str = "PlayM4_Stop failed, error code= " + iLastErr;
DebugInfo(str);
}
if (!PlayCtrl.PlayM4_CloseStream(m_lPort))
{
iLastErr = PlayCtrl.PlayM4_GetLastError(m_lPort);
str = "PlayM4_CloseStream failed, error code= " + iLastErr;
DebugInfo(str);
}
if (!PlayCtrl.PlayM4_FreePort(m_lPort))
{
iLastErr = PlayCtrl.PlayM4_GetLastError(m_lPort);
str = "PlayM4_FreePort failed, error code= " + iLastErr;
DebugInfo(str);
}
m_lPort = -1;
}
DebugInfo("NET_DVR_StopRealPlay succ!");
m_lRealHandle = -1;
btnPreview.Text = "Live View";
RealPlayWnd.Invalidate();//刷新窗口 refresh the window
}
return;
}
private void btnPreview_Click(object sender, EventArgs e)
{
if (m_lUserID < 0)
{
MessageBox.Show("Please login the device firstly!");
return;
}
if (m_bRecord)
{
MessageBox.Show("Please stop recording firstly!");
return;
}
//if (m_lRealHandle < 0)
{
CHCNetSDK.NET_DVR_PREVIEWINFO lpPreviewInfo = new CHCNetSDK.NET_DVR_PREVIEWINFO();
lpPreviewInfo.hPlayWnd = selectedRealPlayWnd.Handle;//预览窗口 live view window
lpPreviewInfo.lChannel = iChannelNum[(int)iSelIndex];//预览的设备通道 the device channel number
lpPreviewInfo.dwStreamType = 0;//码流类型：0-主码流，1-子码流，2-码流3，3-码流4，以此类推
lpPreviewInfo.dwLinkMode = 0;//连接方式：0- TCP方式，1- UDP方式，2- 多播方式，3- RTP方式，4-RTP/RTSP，5-RSTP/HTTP
lpPreviewInfo.bBlocked = true; //0- 非阻塞取流，1- 阻塞取流
IntPtr pUser = new IntPtr(lpPreviewInfo.lChannel);//IntPtr.Zero;//用户数据 user data
if (!channelPortDict.ContainsKey(lpPreviewInfo.lChannel))
{
channelPortDict.Add(lpPreviewInfo.lChannel, -1);
}
if (!lRealHandleDict.ContainsKey(lpPreviewInfo.lChannel))
{
lRealHandleDict.Add(lpPreviewInfo.lChannel, -1);
}
if (comboBoxView.SelectedIndex == 0)
{
//打开预览 Start live view
channelPortDict[lpPreviewInfo.lChannel] = CHCNetSDK.NET_DVR_RealPlay_V40(m_lUserID, ref lpPreviewInfo, null/*RealData*/, pUser);
}
else //回调解码
{
if (!ptrRealHandleDict.ContainsKey(lpPreviewInfo.lChannel))
{
ptrRealHandleDict.Add(lpPreviewInfo.lChannel, selectedRealPlayWnd.Handle);
}
else
{
ptrRealHandleDict[lpPreviewInfo.lChannel] = selectedRealPlayWnd.Handle;
}
//RealData = new CHCNetSDK.REALDATACALLBACK(RealDataCallBack);//预览实时流回调函数 real-time stream callback function
//lRealHandleDict[lpPreviewInfo.lChannel] = CHCNetSDK.NET_DVR_RealPlay_V40(m_lUserID, ref lpPreviewInfo, RealData, pUser);
CHCNetSDK.REALDATACALLBACK RealData = new CHCNetSDK.REALDATACALLBACK(RealDataCallBack);//预览实时流回调函数 real-time stream callback function
RealDataDict.Add(lpPreviewInfo.lChannel, RealData);
lRealHandleDict[lpPreviewInfo.lChannel] = CHCNetSDK.NET_DVR_RealPlay_V40(m_lUserID, ref lpPreviewInfo, RealData, pUser);
}
if (lRealHandleDict[lpPreviewInfo.lChannel] < 0)
{
iLastErr = CHCNetSDK.NET_DVR_GetLastError();
str = "NET_DVR_RealPlay_V40 failed, error code= " + iLastErr; //预览失败，输出错误号 failed to start live view, and output the error code.
DebugInfo(str);
return;
}
else
{
//预览成功
DebugInfo("NET_DVR_RealPlay_V40 succ!");
//btnPreview.Text = "Stop View";
}
}
return;
}