/// <summary>
/// Entschlüsselt eine einzelne Quelle.
/// </summary>
/// <param name="service">Die Informationen zur Quelle.</param>
/// <param name="graph">Der zu verwendende Graph.</param>
public void Decrypt( ushort service, DataGraph graph )
{
// Check COM interface
var controlPtr = ComIdentity.QueryInterface( graph.AdditionalFilters[m_filterIndex].Interface, typeof( KsControl.Interface ) );
if (controlPtr != IntPtr.Zero)
using (var control = new KsControl( controlPtr ))
control.SetServices( service );
}
/// <summary>
/// Aktiviert die Entschlüsselung einer Quelle.
/// </summary>
/// <param name="token">Informationen zur gewählten Quelle.</param>
public PipelineResult Decrypt( DataGraph.DecryptToken token )
{
// Load graph
if (token != null)
m_dataGraph = token.Pipeline.Graph;
// Get unique call identifier
var callIdentifier = Interlocked.Increment( ref m_changeCounter );
// See if we can do anything
if (m_dataGraph == null)
return PipelineResult.Continue;
if (m_filterIndex < 0)
return PipelineResult.Continue;
if (m_filterIndex >= m_dataGraph.AdditionalFilters.Count)
return PipelineResult.Continue;
// Deactivate if CAM reset is forbidden
var sources = (token == null) ? null : token.Sources;
var noSources = (sources == null) || (sources.Length < 1);
if ((noSources && (m_suppress != SuppressionMode.Complete)) || !m_hasBeenReset)
lock (m_deviceAccess)
{
// Check COM interface
var controlPtr = ComIdentity.QueryInterface( m_dataGraph.AdditionalFilters[m_filterIndex].Interface, typeof( KsControl.Interface ) );
if (controlPtr == IntPtr.Zero)
return PipelineResult.Continue;
// Process
using (var control = new KsControl( controlPtr ))
{
// Report
if (BDASettings.BDATraceSwitch.Enabled)
Trace.WriteLine( Properties.Resources.Trace_ResetCAM, BDASettings.BDATraceSwitch.DisplayName );
// Reset the CAM
control.Reset();
// We did it once
m_hasBeenReset = true;
}
}
// Start processor
token.WaitForPMTs(
( pmt, first ) =>
{
// See if we are still allowed to process and do so
lock (m_deviceAccess)
{
// No longer current
if (Thread.VolatileRead( ref m_changeCounter ) != callIdentifier)
return false;
// Try reset
if (!first)
if (m_disableOnChange)
Decrypt( 0, m_dataGraph );
// Wait for it
if (m_changeDelay > 0)
Thread.Sleep( m_changeDelay );
// Regular
Decrypt( pmt.ProgramNumber, m_dataGraph );
}
// Next
return true;
}, sources );
// Next
return PipelineResult.Continue;
}
