/// <summary>
/// Prepare the network writer.
/// </summary>
/// <param name="port"></param>
/// <param name="maxClients"></param>
/// <returns></returns>
public bool ConfigNet(uint port, uint maxClients)
{
if ((writerAdvanced == null) || (netSink == null))
{
Debug.WriteLine("WriterAdvanced and NetSink must exist before calling ConfigNet");
return(false);
}
try
{
netSink.SetNetworkProtocol(WMT_NET_PROTOCOL.WMT_PROTOCOL_HTTP);
netSink.Open(ref port);
uint size = 0;
netSink.GetHostURL(IntPtr.Zero, ref size);
IntPtr buf = Marshal.AllocCoTaskMem((int)(2 * (size + 1)));
netSink.GetHostURL(buf, ref size);
String url = Marshal.PtrToStringAuto(buf);
Marshal.FreeCoTaskMem(buf);
Debug.WriteLine("Connect to:" + url);
netSink.SetMaximumClients(maxClients);
writerAdvanced.AddSink(netSink);
}
catch (Exception e)
{
eventLog.WriteEntry("Failed to configure network: " + e.ToString(), EventLogEntryType.Error, 1000);
Debug.WriteLine("Failed to configure network: " + e.ToString());
return(false);
}
return(true);
}
private void TestProt()
{
NetProtocol pP;
m_pSink.SetNetworkProtocol(NetProtocol.HTTP);
m_pSink.GetNetworkProtocol(out pP);
Debug.Assert(pP == NetProtocol.HTTP);
}
/// <summary>
/// Get and configure the IWMWriterAdvanced
/// </summary>
/// <param name="asfWriter">IBaseFilter from which to get the IWMWriterAdvanced</param>
void DoAnet(IBaseFilter asfWriter)
{
int hr;
int dwPortNum = PortNum;
// Get the IWMWriterAdvanced
IWMWriterAdvanced pWriterAdvanced = GetWriterAdvanced(asfWriter);
try
{
// Remove all the sinks from the writer
RemoveAllSinks(pWriterAdvanced);
// Say we are using live data
hr = pWriterAdvanced.SetLiveSource(true);
WMError.ThrowExceptionForHR(hr);
// Create a network sink
hr = WMUtils.WMCreateWriterNetworkSink(out m_pNetSink);
WMError.ThrowExceptionForHR(hr);
// Configure the network sink
hr = m_pNetSink.SetNetworkProtocol(NetProtocol.HTTP);
WMError.ThrowExceptionForHR(hr);
// Configure the network sink
hr = m_pNetSink.SetMaximumClients(MaxClients);
WMError.ThrowExceptionForHR(hr);
// Done configuring the network sink, open it
hr = m_pNetSink.Open(ref dwPortNum);
WMError.ThrowExceptionForHR(hr);
// Add the network sink to the IWMWriterAdvanced
hr = pWriterAdvanced.AddSink(m_pNetSink as IWMWriterSink);
WMError.ThrowExceptionForHR(hr);
}
finally
{
if (pWriterAdvanced != null)
{
Marshal.ReleaseComObject(pWriterAdvanced);
pWriterAdvanced = null;
}
}
}
/// <summary>
/// Creates the Network Writer Sink (populates member variable)
/// </summary>
private void CreateNetworkWriterSink()
{
//Create Network Sink
WMUtils.WMCreateWriterNetworkSink(out _netSink);
// Configure the network sink
//register to receive callbacks from the Network Sink
IWMRegisterCallback iCallback = (IWMRegisterCallback)_netSink;
iCallback.Advise(this, IntPtr.Zero);
_netSink.SetNetworkProtocol(NetProtocol.HTTP);
if ((SourceConfig.MaxClients < 0) || (SourceConfig.MaxClients > 50))
{
throw new SourceConfigException("MaxClients must be 0-50 for ASFNetSink!");
}
_netSink.SetMaximumClients(SourceConfig.MaxClients);
}