/// <summary>
/// 启动实时监视或多画面预览
/// </summary>
/// <param name="nChannelID"></param>
/// <param name="hWnd"></param>
/// <param name="rType"></param>
/// <returns></returns>
public int RealPlay(int nChannelID, IntPtr hWnd, int nStreamType, int nNetType)
{
if (nChannelID < 0 || nChannelID > 31 || 0 > m_lLogin)
{
return(0);
}
NET_DVR_CLIENTINFO lpClientInfo = new NET_DVR_CLIENTINFO();
lpClientInfo.hPlayWnd = hWnd;
lpClientInfo.lChannel = nChannelID;
lpClientInfo.lLinkMode = 0;
lpClientInfo.sMultiCastIP = "";
CHCNetSDK.NET_DVR_PREVIEWINFO lpPreviewInfo = new CHCNetSDK.NET_DVR_PREVIEWINFO();
lpPreviewInfo.hPlayWnd = hWnd; //预览窗口
lpPreviewInfo.lChannel = nChannelID; //预te览的设备通道
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
lpPreviewInfo.dwDisplayBufNum = 1; //播放库播放缓冲区最大缓冲帧数
lpPreviewInfo.byProtoType = 0;
lpPreviewInfo.byPreviewMode = 0;
IntPtr pUser = new IntPtr();//用户数据
//CHCNetSDK.NET_DVR_RealPlay
m_lPlayHandel[nChannelID] = CHCNetSDK.NET_DVR_RealPlay_V40(m_lLogin, ref lpPreviewInfo, null /*RealData*/, pUser);
uint iLastErr = CHCNetSDK.NET_DVR_GetLastError();
return(m_lPlayHandel[nChannelID]);//!= 0
}
//视频控制
public int SDK_RealPlay(int lChannel, int lLinkMode, IntPtr hPlayWnd)
{
lpClientInfo = new NET_DVR_CLIENTINFO();
lpClientInfo.lChannel = lChannel;
lpClientInfo.lLinkMode = lLinkMode;
lpClientInfo.hPlayWnd = hPlayWnd;
_real_handles[lChannel - 1] = HCNetSDK.NET_DVR_RealPlay_V30(_user_id, ref lpClientInfo, null, 1, false);
return(_real_handles[lChannel - 1]);
}
// 播放视频
public bool RealPlay(int channel, IntPtr hPlayWnd)
{
lpClientInfo = new NET_DVR_CLIENTINFO();
lpClientInfo.lChannel = channel;
lpClientInfo.lLinkMode = 0;
lpClientInfo.hPlayWnd = hPlayWnd;
_real_handles[channel - 1] = HCNetSDK.NET_DVR_RealPlay_V30(_user_id, ref lpClientInfo, null, 1, false);
HCNetSDK.NET_DVR_SetAudioMode(1);
if (_real_handles[channel - 1] < 0)
{
return(false);
}
return(true);
}
public static extern int NET_DVR_RealPlay(int lUserID, ref NET_DVR_CLIENTINFO lpClientInfo);
/*********************************************************
Function: NET_DVR_RealPlay_V30
Desc: 实时预览。
Input: lUserID [in] NET_DVR_Login()或NET_DVR_Login_V30()的返回值
lpClientInfo [in] 预览参数
cbRealDataCallBack [in] 码流数据回调函数
pUser [in] 用户数据
bBlocked [in] 请求码流过程是否阻塞：0－否；1－是
Output:
Return: 1表示失败，其他值作为NET_DVR_StopRealPlay等函数的句柄参数
**********************************************************/
public static extern int NET_DVR_RealPlay_V30(int iUserID, ref NET_DVR_CLIENTINFO lpClientInfo, REALDATACALLBACK fRealDataCallBack_V30, IntPtr pUser, UInt32 bBlocked);
public static extern Int32 NET_SDK_RealPlay(int iUserLogID, ref NET_DVR_CLIENTINFO lpDVRClientInfo);
public static extern Int32 NET_DVR_RealPlay(int iUserID, ref NET_DVR_CLIENTINFO lpClientInfo);
public static extern int NET_DVR_RealPlay_V30(int lUserID, ref NET_DVR_CLIENTINFO lpClientInfo, RealDataCallBack_V30 fRealDataCallBack_V30, int pUser, bool bBlocked);
/// <summary>
/// 功能：启动图像实时预览
/// </summary>
/// <param name="IUserId">用户登录ID，DeviceLogin 的返回值.</param>
/// <param name="lChannel">硬盘录像机通道号</param>
/// <param name="hPlayWnd">播放窗口的句柄</param>
/// <returns>返回值：-1 表示失败，其他值作为其它函数的参数</returns>
public int RealPlay(int IUserId, int lChannel, IntPtr hPlayWnd)
{
NET_DVR_CLIENTINFO lpInfo = new NET_DVR_CLIENTINFO();
lpInfo.lChannel = lChannel;
lpInfo.lLinkMode = 0;
lpInfo.hPlayWnd = hPlayWnd;
lpInfo.sMultiCastIP = "";
return NET_DVR_RealPlay(IUserId, ref lpInfo);
}
