/// <summary>
/// Führt die DiSEqC Steuerung aus.
/// </summary>
/// <param name="token">Die Informationen zur aktuellen Wahl der Quellgruppe.</param>
/// <returns>Das Ergebnis der Operation.</returns>
private PipelineResult ApplyDiSEqC( DataGraph.TuneToken token )
{
// See if we are fully active
var message = (token == null) ? null : token.DiSEqCMessage;
if (message == null)
{
// Shutdown connection
Close();
// Reset
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;
// Already did it
if (message.Equals( m_LastDiSEqC ))
return PipelineResult.Continue;
// Open the device
Open( tuner );
try
{
// Process
var data = (byte[]) message.Request.Clone();
var error = bdaapiSetDiSEqCMsg( Device, data, (byte) data.Length, (byte) message.Repeat, message.Burst, Polarisation.NotSet );
if (error == APIErrorCodes.Success)
m_LastDiSEqC = message.Clone();
else
throw new DVBException( error.ToString() );
}
catch (Exception e)
{
// Report
EventLog.WriteEntry( "DVB.NET", string.Format( "TechnoTrend BDA API DiSEqC: {0}", e ), EventLogEntryType.Error );
// Force recalibrate on next call
m_LastDiSEqC = null;
}
// Next one, please
return PipelineResult.Continue;
}
/// <summary>
/// Bereitet die internen Strukturen für die Konfiguration einer Quellgruppe für den
/// Satellitenempfang vor.
/// </summary>
/// <param name="initializer">Methode zur Übernahme der Parameter der Quellgruppe.</param>
/// <returns>Ein neuer Namensraum.</returns>
private IDVBTuningSpace2 PrepareSatellite(out Action <ILocator> initializer)
{
// Get native types
var location = GroupLocation as SatelliteLocation;
var group = SourceGroup as SatelliteGroup;
// Create DiSEqC message
if (location != null)
{
if (group != null)
{
DiSEqCMessage = StandardDiSEqC.FromSourceGroup(group, location);
}
}
// Create tuning space
var space = Activator.CreateInstance(Type.GetTypeFromCLSID(DVBSTuningSpaceClassIdentifier));
try
{
// Change type
var tuningSpace = (IDVBSTuningSpace)space;
// Configure
tuningSpace.UniqueName = "DVBNET Satellite";
tuningSpace.FriendlyName = "DVB.NET Satellite Tuning Space";
tuningSpace.NetworkType = "{FA4B375A-45B4-4D45-8440-263957B11623}";
tuningSpace.SystemType = DVBSystemType.Satellite;
// Configure location
if (location != null)
{
// Configure
tuningSpace.LNBSwitch = checked ((int)location.SwitchFrequency);
tuningSpace.HighOscillator = checked ((int)location.Frequency2);
tuningSpace.LowOscillator = checked ((int)location.Frequency1);
tuningSpace.SpectralInversion = SpectralInversion.Automatic;
tuningSpace.FrequencyMapping = string.Empty;
tuningSpace.InputRange = string.Empty;
tuningSpace.NetworkID = -1;
}
// Create locator
var locator = Activator.CreateInstance(Type.GetTypeFromCLSID(DVBSLocatorClassIdentifier));
try
{
// Configure group
if (group == null)
{
initializer = null;
}
else
{
initializer = clone =>
{
// Change type
var dvbs = (IDVBSLocator)clone;
// Configure
dvbs.Modulation = group.UsesS2Modulation ? ModulationType.VSB8 : ModulationType.QPSK;
dvbs.SymbolRate = checked ((int)(group.SymbolRate / 1000));
dvbs.CarrierFrequency = checked ((int)group.Frequency);
dvbs.InnerFECRate = BinaryConvolutionCodeRate.NotSet;
dvbs.OuterFECRate = BinaryConvolutionCodeRate.NotSet;
dvbs.SignalPolarisation = Polarisation.NotSet;
dvbs.WestPosition = group.IsWestPosition;
dvbs.OuterFEC = FECMethod.NotSet;
dvbs.InnerFEC = FECMethod.NotSet;
dvbs.OrbitalPosition = -1;
dvbs.Elevation = -1;
dvbs.Azimuth = 0;
// Set polarisation
switch (group.Polarization)
{
case Polarizations.Horizontal: dvbs.SignalPolarisation = Polarisation.Horizontal; break;
case Polarizations.Vertical: dvbs.SignalPolarisation = Polarisation.Vertical; break;
}
// Set rate
switch (group.InnerFEC)
{
case InnerForwardErrorCorrectionModes.Conv1_2: dvbs.InnerFEC = FECMethod.Viterbi; dvbs.InnerFECRate = BinaryConvolutionCodeRate.Rate1_2; break;
case InnerForwardErrorCorrectionModes.Conv2_3: dvbs.InnerFEC = FECMethod.Viterbi; dvbs.InnerFECRate = BinaryConvolutionCodeRate.Rate2_3; break;
case InnerForwardErrorCorrectionModes.Conv3_4: dvbs.InnerFEC = FECMethod.Viterbi; dvbs.InnerFECRate = BinaryConvolutionCodeRate.Rate3_4; break;
case InnerForwardErrorCorrectionModes.Conv3_5: dvbs.InnerFEC = FECMethod.Viterbi; dvbs.InnerFECRate = BinaryConvolutionCodeRate.Rate3_5; break;
case InnerForwardErrorCorrectionModes.Conv4_5: dvbs.InnerFEC = FECMethod.Viterbi; dvbs.InnerFECRate = BinaryConvolutionCodeRate.Rate4_5; break;
case InnerForwardErrorCorrectionModes.Conv5_6: dvbs.InnerFEC = FECMethod.Viterbi; dvbs.InnerFECRate = BinaryConvolutionCodeRate.Rate5_6; break;
case InnerForwardErrorCorrectionModes.Conv7_8: dvbs.InnerFEC = FECMethod.Viterbi; dvbs.InnerFECRate = BinaryConvolutionCodeRate.Rate7_8; break;
case InnerForwardErrorCorrectionModes.Conv8_9: dvbs.InnerFEC = FECMethod.Viterbi; dvbs.InnerFECRate = BinaryConvolutionCodeRate.Rate8_9; break;
case InnerForwardErrorCorrectionModes.Conv9_10: dvbs.InnerFEC = FECMethod.Viterbi; dvbs.InnerFECRate = BinaryConvolutionCodeRate.Rate9_10; break;
}
}
};
// Change type - actually test it
tuningSpace.DefaultLocator = (ILocator)locator;
}
finally
{
// Cleanup
BDAEnvironment.Release(ref locator);
}
// Report
return((IDVBTuningSpace2)tuningSpace);
}
catch
{
// Cleanup
BDAEnvironment.Release(ref space);
// Forward
throw;
}
}
/// <summary>
/// Wählt eine Quellgruppe aus.
/// </summary>
/// <param name="group">Díe Daten der Quellgruppe.</param>
/// <param name="location">Die Wahl des Ursprungs, über den die Quellgruppe empfangen werden kann.</param>
public void Tune( SourceGroup group, GroupLocation location )
{
// May repeat some times
for (int retryCount = 3; retryCount-- > 0; Thread.Sleep( 250 ))
{
// All supported in order of importance
if (!Tune( group as SatelliteGroup, location as SatelliteLocation ).HasValue)
if (!Tune( group as CableGroup ).HasValue)
if (!Tune( group as TerrestrialGroup ).HasValue)
throw new DVBException( "Unsupported channel type " + group.GetType().FullName );
// Done if locked
if (SignalStatus.Locked)
break;
// Enforce reset
m_lastMessage = null;
}
}
/// <summary>
/// Wählt eine Quellgruppe aus.
/// </summary>
/// <param name="group">Díe Daten der Quellgruppe.</param>
/// <param name="location">Die Wahl des Ursprungs, über den die Quellgruppe empfangen werden kann.</param>
/// <returns>Gesetzt, wenn es sich um eine DVB-S Quellgruppe handelt.</returns>
private Channel_S? Tune( SatelliteGroup group, SatelliteLocation location )
{
// Not us
if (location == null)
return null;
if (group == null)
return null;
// Validate
if (FrontendType != FrontendType.Satellite)
throw new DVBException( "Expected " + FrontendType.ToString() + " Channel" );
// Create channel
var data =
new Channel_S
{
Mode = group.UsesS2Modulation ? DVBSMode.DVB_S2 : DVBSMode.DVB_S,
Inversion = SpectrumInversion.Auto,
SymbolRate = group.SymbolRate,
Frequency = group.Frequency,
};
// Attach to the DiSEqC setting
var selector = StandardDiSEqC.FromSourceGroup( group, location );
// See if the message is different from the last one
if (!selector.Equals( m_lastMessage ))
{
// Remember
m_lastMessage = selector.Clone();
// As long as necessary
for (int nCount = selector.Repeat; nCount-- > 0; Thread.Sleep( 120 ))
{
// Send it
DVBException.ThrowOnError( _SendDiSEqCMsg( m_Class.ClassPointer, selector.Request, (byte) selector.Request.Length, selector.Burst ), "Could not send DiSEqC message" );
// Set repeat flag
if (selector.Request.Length > 0)
selector.Request[0] |= 1;
}
}
// Calculated items
data.b22kHz = (group.Frequency >= location.SwitchFrequency) ? 1 : 0;
data.LOF = (0 == data.b22kHz) ? location.Frequency1 : location.Frequency2;
// Power modes
switch (group.Polarization)
{
case Polarizations.Horizontal: data.LNBPower = PowerMode.Horizontal; break;
case Polarizations.Vertical: data.LNBPower = PowerMode.Vertical; break;
case Polarizations.NotDefined: data.LNBPower = PowerMode.Off; break;
default: throw new ArgumentException( group.Polarization.ToString(), "Polarization" );
}
// Process
return data.SetChannel( this, false );
}
/// <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>
/// Wählt eine Quellgruppe aus.
/// </summary>
/// <param name="group">Díe Daten der Quellgruppe.</param>
/// <param name="location">Die Wahl des Ursprungs, über den die Quellgruppe empfangen werden kann.</param>
/// <returns>Gesetzt, wenn es sich um eine DVB-S Quellgruppe handelt.</returns>
private bool SendChannel( SatelliteGroup group, SatelliteLocation location )
{
// Not us
if (location == null)
return false;
if (group == null)
return false;
// Validate
if (FrontendType != FrontendType.Satellite)
throw new DVBException( "Expected " + FrontendType.ToString() + " Channel" );
// Create channel
var channel =
new Channel_S
{
Inversion = SpectrumInversion.Auto,
SymbolRate = group.SymbolRate,
Frequency = group.Frequency,
};
// Attach to the DiSEqC setting
var selector = StandardDiSEqC.FromSourceGroup( group, location );
// See if the message is different from the last one
if (!selector.Equals( m_lastMessage ))
{
// Remember
m_lastMessage = selector.Clone();
// As long as necessary
for (int nCount = selector.Repeat; nCount-- > 0; Thread.Sleep( 120 ))
{
// Send it
DVBException.ThrowOnError( CDVBFrontend_SendDiSEqCMsg( m_Class.ClassPointer, selector.Request, (byte) selector.Request.Length, selector.Burst ), "Could not send DiSEqC Message" );
// Set repeat flag
if (selector.Request.Length > 0)
selector.Request[0] |= 1;
}
}
// Calculated items
channel.b22kHz = (group.Frequency >= location.SwitchFrequency) ? 1 : 0;
channel.LOF = (0 == channel.b22kHz) ? location.Frequency1 : location.Frequency2;
// Power modes
switch (group.Polarization)
{
case Polarizations.Horizontal: channel.LNBPower = PowerMode.Horizontal; break;
case Polarizations.Vertical: channel.LNBPower = PowerMode.Vertical; break;
case Polarizations.NotDefined: channel.LNBPower = PowerMode.Off; break;
default: throw new ArgumentException( group.Polarization.ToString(), "Polarization" );
}
// Process
CheckChannel( CDVBFrontend_SetChannel( m_Class.ClassPointer, channel, false ) );
// Check up for synchronisation
Channel_S val1, val2;
// Get channel twice
CheckChannel( CDVBFrontend_GetChannel( m_Class.ClassPointer, out val1 ) );
CheckChannel( CDVBFrontend_GetChannel( m_Class.ClassPointer, out val2 ) );
// Did it
return true;
}
/// <summary>
/// Wählt eine Quellgruppe aus.
/// </summary>
/// <param name="group">Díe Daten der Quellgruppe.</param>
/// <param name="location">Die Wahl des Ursprungs, über den die Quellgruppe empfangen werden kann.</param>
/// <returns>Gesetzt, wenn es sich um eine DVB-S Quellgruppe handelt.</returns>
public void SetChannel( SourceGroup group, GroupLocation location )
{
// Stop all filters
StopFilters();
// May repeat some times
for (int nRetry = 3; nRetry-- > 0; )
{
// Supported types in order of importance
if (!SendChannel( group as SatelliteGroup, location as SatelliteLocation ))
if (!SendChannel( group as CableGroup ))
if (!SendChannel( group as TerrestrialGroup ))
throw new DVBException( "Unsupported Channel Type " + group.GetType().FullName );
// Wait for the signal
for (int n = 10; n-- > 0; Thread.Sleep( 50 ))
if (SignalStatus.Locked)
return;
// Force to resend DiSEqC command
m_lastMessage = null;
}
}
/// <summary>
/// Initialize the frontend.
/// </summary>
/// <remarks>
/// When the C++ method invocation reports a hardware error the call is repeated
/// up to three times with a <see cref="Thread.Sleep(int)"/>(500) between the calls.
/// If the error holds a <see cref="DVBException"/> is thrown.
/// <see cref="StopFilters"/>
/// </remarks>
/// <exception cref="DVBException">
/// Thrown when the C++ method invocation reports some <see cref="DVBError"/>.
/// </exception>
public void Initialize()
{
// Time to stop all filters
StopFilters();
// Execute
DVBError eCode = CDVBFrontend_Init( m_Class.ClassPointer );
// Retry
for (int nRetry = 3; (DVBError.Hardware == eCode) && (nRetry-- > 0); )
{
// Delay
Thread.Sleep( 500 );
// Try again
eCode = CDVBFrontend_Init( m_Class.ClassPointer );
}
// Validate
if (DVBError.None != eCode) throw new DVBException( "Can not initialize Frontend", eCode );
// Reset
m_lastMessage = null;
}
/// <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;
}
