/// <summary>
/// Wird zur eigentlichen Steuerung der Entschlüsselung aufgerufen.
/// </summary>
/// <param name="pmt">Die Informationen zur Quelle.</param>
/// <param name="reset">Gesetzt, um einen Neustart der Entschlüsselung zu erzwingen.</param>
private void Decrypt(EPG.Tables.PMT pmt, bool reset)
{
// Check the interface
var setPtr = ComIdentity.QueryInterface(m_DataGraph.TunerFilter.Interface, typeof(KsPropertySetFireDTV.Interface));
if (setPtr == IntPtr.Zero)
{
return;
}
// Process
using (var propertySet = new KsPropertySetFireDTV(setPtr))
try
{
// Load property identifier
var propSetId = PropertySetId;
var supported = propertySet.QuerySupported(ref propSetId, BDAProperties.SendCA);
if ((PropertySetSupportedTypes.Set & supported) != PropertySetSupportedTypes.Set)
{
return;
}
// Process reset
if (reset)
{
propertySet.Send(CACommand.CreateReset());
}
else if (pmt == null)
{
propertySet.Send(CACommand.StopDecryption());
}
else
{
propertySet.Send(CACommand.CreateDecrypt(pmt));
}
}
catch
{
// Forward if not resetting
if (pmt != null)
{
throw;
}
}
}
/// <summary>
/// Wird zur eigentlichen Steuerung der Entschlüsselung aufgerufen.
/// </summary>
/// <param name="pmt">Die Informationen zur Quelle.</param>
private void Decrypt(EPG.Tables.PMT pmt)
{
// Connect once
Open(m_DataGraph.TunerFilter);
// Just wait a bit
if (m_TuneDelay > 0)
{
Thread.Sleep(m_TuneDelay);
}
// Create full section and process
var table = pmt.Section.CreateSITable().Skip(1).ToArray();
var error = bdaapiCIReadPSIFastWithPMT(Device, table, (ushort)table.Length);
if (error != APIErrorCodes.Success)
{
throw new DVBException(error.ToString());
}
}
/// <summary>
/// Wertet eine PMT aus.
/// </summary>
/// <param name="pmt">Die angeforderte PMT.</param>
private void ProcessPMT(EPG.Tables.PMT pmt)
{
// Skip
if (pmt == null)
{
return;
}
if (!pmt.IsValid)
{
return;
}
// Load receiver
var sink = Interlocked.Exchange(ref m_PMTSink, null);
if (sink != null)
{
try
{
// Process
sink(pmt);
}
catch (Exception e)
{
// Maybe log does not yet exist
try
{
// Report and ignore
EventLog.WriteEntry("DVB.NET", e.ToString(), EventLogEntryType.Error);
}
catch
{
// At least trace it
Trace.WriteLine(e.ToString());
}
}
}
}
