/// <summary>
/// Aktiviert die Auswahl einer DVB-S2 Quellgruppe.
/// </summary>
/// <param name="tune">Der aktuelle Auswahlvorgang.</param>
/// <returns>Beschreibt, wie die Bearbeitung weiter fortgeführt werden soll.</returns>
private static PipelineResult ActivateS2(DataGraph.TuneToken tune)
{
// Graph is starting or resetting
var group = (tune == null) ? null : tune.SourceGroup as SatelliteGroup;
if (group == null)
{
return(PipelineResult.Continue);
}
// Attach to tuner
var tuner = tune.Pipeline.Graph.TunerFilter;
if (tuner == null)
{
return(PipelineResult.Continue);
}
// Verify that grpah is created
if (tune.Pipeline.Graph.TransportStreamAnalyser == null)
{
return(PipelineResult.Continue);
}
// Not DVB-S2
if (!group.UsesS2Modulation)
{
return(PipelineResult.Continue);
}
// Attach to the locator of the tune request
var locator = tune.TuneRequest.Locator;
try
{
// Apply modulation
switch (group.Modulation)
{
case SatelliteModulations.QPSK: locator.Modulation = (ModulationType)(ModulationType.AnalogFrequency + 5); break;
case SatelliteModulations.PSK8: locator.Modulation = (ModulationType)(ModulationType.AnalogFrequency + 6); break;
case SatelliteModulations.QAM16: locator.Modulation = ModulationType.QAM16; break;
}
// Store back
tune.TuneRequest.Locator = locator;
}
finally
{
// Cleanup properly
BDAEnvironment.Release(ref locator);
}
// Attach to the one input pin of the tuner
using (var input = tuner.GetSinglePin(PinDirection.Input))
{
// Start with roll-off
using (var propertySet = KsPropertySet.Create <RollOff>(input.Interface))
if (propertySet != null)
{
// Get the property and node to use
var roNode = KsPNode.Create(BdaTunerExtensionProperties, BDATunerExtensions.RollOff, BDANodes.Tuner);
// Update
if (propertySet.DoesSupport(roNode, PropertySetSupportedTypes.Set))
{
switch (group.RollOff)
{
case S2RollOffs.Alpha35: propertySet.Set(roNode, RollOff.Offset35); break;
case S2RollOffs.Alpha25: propertySet.Set(roNode, RollOff.Offset25); break;
case S2RollOffs.Alpha20: propertySet.Set(roNode, RollOff.Offset20); break;
default: propertySet.Set(roNode, RollOff.NotSet); break;
}
}
}
// Continue with pilot
using (var propertySet = KsPropertySet.Create <Pilot>(input.Interface))
if (propertySet != null)
{
// Get the property and node to use
var piNode = KsPNode.Create(BdaTunerExtensionProperties, BDATunerExtensions.Pilot, BDANodes.Tuner);
// Update
if (propertySet.DoesSupport(piNode, PropertySetSupportedTypes.Set))
{
propertySet.Set(piNode, Pilot.NotSet);
}
}
}
// Normal
return(PipelineResult.Continue);
}
/// <summary>
/// Übernimmt die Ansteuerung einer Antenne.
/// </summary>
/// <param name="tune">Der aktuelle Änderungswunsch.</param>
/// <returns>Beschreibt, wie weiter fortzufahren ist.</returns>
private PipelineResult ApplyDiSEqC(DataGraph.TuneToken tune)
{
// Not active
var diseqc = (tune == null) ? null : tune.DiSEqCMessage;
if (diseqc == null)
{
// Reset request - or first call at all
m_LastDiSEqC = null;
// Next
return(PipelineResult.Continue);
}
// Attach to tuner
var tuner = tune.Pipeline.Graph.TunerFilter;
if (tuner == null)
{
return(PipelineResult.Continue);
}
// Verify that grpah is created
if (tune.Pipeline.Graph.TransportStreamAnalyser == null)
{
return(PipelineResult.Continue);
}
// Request the message to send
if (diseqc.Equals(m_LastDiSEqC))
{
return(PipelineResult.Continue);
}
// Attach to the one input pin of the tuner
using (var input = tuner.GetSinglePin(PinDirection.Input))
using (var propertySet = KsPropertySet.Create <NovaDiSEqCMessage>(input.Interface))
if (propertySet != null)
{
// Create the identifier of the property to use
var nodeReference = KsPNode.Create(BdaTunerExtensionProperties, BDATunerExtensions.DiSEqC, BDANodes.Tuner);
// Check for support of the property
if (!propertySet.DoesSupport(nodeReference, PropertySetSupportedTypes.Set))
{
return(PipelineResult.Continue);
}
// Create structures
var message = new NovaDiSEqCMessage();
// Create a copy
var command = (byte[])diseqc.Request.Clone();
// As long as necessary
for (int nCount = diseqc.Repeat; nCount-- > 0; Thread.Sleep(120))
{
try
{
// Prepare the message
message.Request = new byte[151];
message.Response = new byte[9];
// Fill the message
command.CopyTo(message.Request, 0);
// Set the lengths
message.RequestLength = (uint)command.Length;
message.ResponseLength = 0;
// Configure
message.ToneBurstModulation = (ToneBurstModulationModes)diseqc.Burst;
message.ResponseMode = DiSEqCReceiveModes.NoReply;
message.DiSEqCVersion = DiSEqCVersions.Version1;
message.AmplitudeAttenuation = 3;
message.LastMessage = true;
// Send the message
propertySet.Set(nodeReference, message);
// Set repeat flag
if (command.Length > 0)
{
command[0] |= 1;
}
}
catch
{
// Reset
m_LastDiSEqC = null;
// Forward
throw;
}
}
// Remember
m_LastDiSEqC = diseqc.Clone();
}
// Done
return(PipelineResult.Continue);
}
/// <summary>
/// Führt die DiSEqC Steuerung aus.
/// </summary>
/// <param name="token">Die aktuellen Informationen zum Wechsel der Quellgruppe.</param>
/// <returns>Meldet, wie die weitere Abarbeitung zu erfolgen hat.</returns>
private PipelineResult ApplyDiSEqC(DataGraph.TuneToken token)
{
// Not active
var diseqc = (token == null) ? null : token.DiSEqCMessage;
if (diseqc == null)
{
// Reset request - or first call at all
m_LastDiSEqC = null;
// Next
return(PipelineResult.Continue);
}
// Attach to tuner
var tuner = token.Pipeline.Graph.TunerFilter;
if (tuner == null)
{
return(PipelineResult.Continue);
}
// Verify that grpah is created
if (token.Pipeline.Graph.TransportStreamAnalyser == null)
{
return(PipelineResult.Continue);
}
// Request the message to send
if (diseqc.Equals(m_LastDiSEqC))
{
return(PipelineResult.Continue);
}
// Attach to the one input pin of the tuner
using (var input = tuner.GetSinglePin(PinDirection.Input))
using (var propertySet = KsPropertySet.Create <DiSEqCMessage>(input.Interface))
if (propertySet != null)
{
// Create the identifier of the property to use
var nodeReference = KsPNode.Create(TunerExtensionPropertiesS2, TunerExtensionProperties.DiSEqC, 0);
// Check for support of the property
if (!propertySet.DoesSupport(nodeReference, PropertySetSupportedTypes.Set))
{
return(PipelineResult.Continue);
}
// Create structures
var message = new DiSEqCMessage();
// Create a copy
var command = (byte[])diseqc.Request.Clone();
// As long as necessary
try
{
// Prepare the message
message.Request = new byte[151];
// Fill the message
command.CopyTo(message.Request, 0);
// Configure
message.RequestLength = (byte)command.Length;
message.LastMessage = true;
message.Power = 0;
// Send the message
propertySet.Set(nodeReference, message);
}
catch
{
// Reset
m_LastDiSEqC = null;
// Forward
throw;
}
// Remember
m_LastDiSEqC = diseqc.Clone();
}
// Next
return(PipelineResult.Continue);
}