private void RealDataSnapCallBack(Int32 lRealHandle, uint dwDataType, ref byte pBuffer,
uint dwBufSize,
IntPtr pUser)
{
if (ConnectState != ConnectState.Connected || DispatchState != DispatchState.Established)
{
return;
}
bool isSuccess;
switch (dwDataType)
{
case OfficalAPI.NET_DVR_SYSHEAD: // 系统头
isSuccess = OfficalAPI.PlayM4_GetPort(ref _playPort);
if (isSuccess)
{
this.InfoSuccessWithDescription("获取通道", "通道编号" + _playPort);
}
else
{
WarnPlaySdkFailWithReason("获取通道");
//Shutdown();
break;
}
if (dwBufSize > 0)
{
isSuccess = OfficalAPI.PlayM4_SetStreamOpenMode(_playPort,
OfficalAPI.STREAME_REALTIME);
if (isSuccess)
{
this.InfoSuccess("设置码流开启模式");
}
else
{
WarnPlaySdkFailWithReason("设置码流开启模式");
//Stop();
break;
}
isSuccess = OfficalAPI.PlayM4_OpenStream(_playPort,
ref pBuffer,
dwBufSize,
(uint)(Width * Height * 6));
if (isSuccess)
{
this.InfoSuccess("开启码流");
}
else
{
WarnPlaySdkFailWithReason("开启码流失败");
_playPort = InvalidPlayPort;
//Stop();
break;
}
//if (!HikvisionSDK.PlayM4_SetDisplayBuf(_playPort, 5))
//{
// WarnPlaySdkFailWithReason("设置实时播放缓冲区失败");
//}
//if (!HikvisionSDK.PlayM4_SetOverlayMode(_playPort, 0, 0 /* COLORREF(0)*/))
//{
// WarnPlaySdkFailWithReason("设置采集模式失败");
//}
isSuccess = OfficalAPI.PlayM4_Play(_playPort, IntPtr.Zero);
if (isSuccess)
{
this.InfoSuccess("开启解码");
}
else
{
WarnPlaySdkFailWithReason("开启解码");
_playPort = -1;
//Stop();
}
}
break;
case OfficalAPI.NET_DVR_STREAMDATA: // video stream data
if (dwBufSize == 0 || _playPort == -1)
{
return;
}
isSuccess = OfficalAPI.PlayM4_InputData(_playPort, ref pBuffer, dwBufSize);
if (!isSuccess)
{
uint errorCode = OfficalAPI.PlayM4_GetLastError(_playPort);
this.ErrorFailWithReason("输入码流", "错误代码" + errorCode);
switch (errorCode)
{
case OfficalAPI.PLAYM4_BUF_OVER:
this.Warn("播放缓冲区满");
for (;;)
{
Thread.Sleep(5);
errorCode =
OfficalAPI.PlayM4_GetLastError(
_playPort);
if (errorCode == OfficalAPI.PLAYM4_NOERROR)
{
this.Warn("播放缓冲区正常");
break;
}
}
break;
default:
//Stop();
break;
}
}
break;
}
}