public void RealDataCallBack(Int32 lRealHandle, UInt32 dwDataType, IntPtr pBuffer, UInt32 dwBufSize, IntPtr pUser)
{
int lChannel = (int)pUser;
int lPort = channelPortDict[lChannel];
//下面数据处理建议使用委托的方式
MyDebugInfo AlarmInfo = new MyDebugInfo(DebugInfo);
switch (dwDataType)
{
case CHCNetSDK.NET_DVR_SYSHEAD: // sys head
if (dwBufSize > 0)
{
//获取播放句柄 Get the port to play
if (!PlayCtrl.PlayM4_GetPort(ref lPort))
{
iLastErr = PlayCtrl.PlayM4_GetLastError(lPort);
str = "PlayM4_GetPort failed, error code= " + iLastErr;
this.BeginInvoke(AlarmInfo, str);
break;
}
else
{
channelPortDict[lChannel] = lPort;
}
//设置流播放模式 Set the stream mode: real-time stream mode
if (!PlayCtrl.PlayM4_SetStreamOpenMode(lPort, PlayCtrl.STREAME_REALTIME))
{
iLastErr = PlayCtrl.PlayM4_GetLastError(lPort);
str = "Set STREAME_REALTIME mode failed, error code= " + iLastErr;
this.BeginInvoke(AlarmInfo, str);
}
//打开码流，送入头数据 Open stream
if (!PlayCtrl.PlayM4_OpenStream(lPort, pBuffer, dwBufSize, 2 * 1024 * 1024))
{
iLastErr = PlayCtrl.PlayM4_GetLastError(lPort);
str = "PlayM4_OpenStream failed, error code= " + iLastErr;
this.BeginInvoke(AlarmInfo, str);
break;
}
//设置显示缓冲区个数 Set the display buffer number
if (!PlayCtrl.PlayM4_SetDisplayBuf(lPort, 15))
{
iLastErr = PlayCtrl.PlayM4_GetLastError(lPort);
str = "PlayM4_SetDisplayBuf failed, error code= " + iLastErr;
this.BeginInvoke(AlarmInfo, str);
}
//设置显示模式 Set the display mode
if (!PlayCtrl.PlayM4_SetOverlayMode(lPort, 0, 0 /* COLORREF(0)*/)) //play off screen
{
iLastErr = PlayCtrl.PlayM4_GetLastError(lPort);
str = "PlayM4_SetOverlayMode failed, error code= " + iLastErr;
this.BeginInvoke(AlarmInfo, str);
}
//设置解码回调函数，获取解码后音视频原始数据 Set callback function of decoded data
PlayCtrl.DECCBFUN m_fDisplayFun = new PlayCtrl.DECCBFUN(DecCallbackFUN);
fDisplayFunDict.Add(lChannel, m_fDisplayFun);
if (!PlayCtrl.PlayM4_SetDecCallBackExMend(lPort, m_fDisplayFun, IntPtr.Zero, 0, lPort))
{
//this.BeginInvoke(AlarmInfo, "PlayM4_SetDisplayCallBack fail");
}
//开始解码 Start to play
if (!PlayCtrl.PlayM4_Play(lPort, ptrRealHandleDict[lChannel]))
{
iLastErr = PlayCtrl.PlayM4_GetLastError(lPort);
str = "PlayM4_Play failed, error code= " + iLastErr;
this.BeginInvoke(AlarmInfo, str);
break;
}
}
break;
case CHCNetSDK.NET_DVR_STREAMDATA: // video stream data
if (dwBufSize > 0 && lPort != -1)
{
//for (int i = 0; i < 999; i++) //dingyh
{
//送入码流数据进行解码 Input the stream data to decode
if (!PlayCtrl.PlayM4_InputData(lPort, pBuffer, dwBufSize))
{
iLastErr = PlayCtrl.PlayM4_GetLastError(lPort);
str = "PlayM4_InputData failed, error code= " + iLastErr;
Thread.Sleep(2);
}
else
{
break;
}
}
}
break;
default:
if (dwBufSize > 0 && lPort != -1)
{
//送入其他数据 Input the other data
//for (int i = 0; i < 999; i++) //dingyh
{
if (!PlayCtrl.PlayM4_InputData(lPort, pBuffer, dwBufSize))
{
iLastErr = PlayCtrl.PlayM4_GetLastError(lPort);
str = "PlayM4_InputData failed, error code= " + iLastErr;
Thread.Sleep(2);
}
else
{
break;
}
}
}
break;
}
}