/// <summary>
/// Meldet eine der Frequenzen in der natürlichen Form.
/// </summary>
/// <param name="index">Die 0-basierte laufende Nummer der gewünschten Frequenz.</param>
/// <returns>Die Frequenz in Hz.</returns>
public ulong ConvertFrequency(int index)
{
// Check mode
switch (CodingType)
{
case CodingTypes.Satellite: return(SatelliteDelivery.ConvertFrequency(Frequencies[index]));
case CodingTypes.Cable: return(CableDelivery.ConvertFrequency(Frequencies[index]));
case CodingTypes.Terrestrial: return(TerrestrialDelivery.ConvertFrequency(Frequencies[index]));
default: return(Frequencies[index]);
}
}
/// <summary>
/// Erzeugt die Beschreibung einer Quellgruppe aus einer SI Beschreibung eines
/// NIT Eintrags.
/// </summary>
/// <param name="descriptor">Die Daten zur Quellgruppe.</param>
/// <returns>Die Quellgruppe.</returns>
private static SatelliteGroup ToGroup(this EPG.Descriptors.SatelliteDelivery descriptor)
{
// Create core
var group = new SatelliteGroup
{
Frequency = descriptor.Frequency,
IsWestPosition = descriptor.West,
OrbitalPosition = descriptor.OrbitalPosition.ToString("0000"),
SymbolRate = descriptor.SymbolRate * 1000
};
// DVB-S2 modulation
group.UsesS2Modulation = (0 != (0x04 & descriptor.Modulation));
// Roll-Off if using DVB-S2
if (group.UsesS2Modulation)
{
switch (0x18 & descriptor.Modulation)
{
case 0x00: group.RollOff = S2RollOffs.Alpha35; break;
case 0x08: group.RollOff = S2RollOffs.Alpha25; break;
case 0x10: group.RollOff = S2RollOffs.Alpha20; break;
case 0x18: group.RollOff = S2RollOffs.Reserved; break;
}
}
// Modulation
switch (0x03 & descriptor.Modulation)
{
case 0: group.Modulation = SatelliteModulations.Auto; break;
case 1: group.Modulation = SatelliteModulations.QPSK; break;
case 2: group.Modulation = SatelliteModulations.PSK8; break;
case 3: group.Modulation = SatelliteModulations.QAM16; break;
}
// Polarisation
switch (descriptor.Polarization)
{
case EPG.Polarizations.Horizontal: group.Polarization = Polarizations.Horizontal; break;
case EPG.Polarizations.Vertical: group.Polarization = Polarizations.Vertical; break;
case EPG.Polarizations.Left: group.Polarization = Polarizations.Left; break;
case EPG.Polarizations.Right: group.Polarization = Polarizations.Right; break;
}
// Error correction
switch (descriptor.InnerFEC)
{
case EPG.InnerFECs.NotDefined: group.InnerFEC = InnerForwardErrorCorrectionModes.NotDefined; break;
case EPG.InnerFECs.Conv1_2: group.InnerFEC = InnerForwardErrorCorrectionModes.Conv1_2; break;
case EPG.InnerFECs.Conv2_3: group.InnerFEC = InnerForwardErrorCorrectionModes.Conv2_3; break;
case EPG.InnerFECs.Conv3_4: group.InnerFEC = InnerForwardErrorCorrectionModes.Conv3_4; break;
case EPG.InnerFECs.Conv5_6: group.InnerFEC = InnerForwardErrorCorrectionModes.Conv5_6; break;
case EPG.InnerFECs.Conv7_8: group.InnerFEC = InnerForwardErrorCorrectionModes.Conv7_8; break;
case EPG.InnerFECs.Conv8_9: group.InnerFEC = InnerForwardErrorCorrectionModes.Conv8_9; break;
case EPG.InnerFECs.Reserved0111: group.InnerFEC = InnerForwardErrorCorrectionModes.Conv3_5; break;
case EPG.InnerFECs.Reserved1000: group.InnerFEC = InnerForwardErrorCorrectionModes.Conv4_5; break;
case EPG.InnerFECs.Reserved1001: group.InnerFEC = InnerForwardErrorCorrectionModes.Conv9_10; break;
case EPG.InnerFECs.Reserved1010: group.InnerFEC = InnerForwardErrorCorrectionModes.Reserved1010; break;
case EPG.InnerFECs.Reserved1011: group.InnerFEC = InnerForwardErrorCorrectionModes.Reserved1011; break;
case EPG.InnerFECs.Reserved1100: group.InnerFEC = InnerForwardErrorCorrectionModes.Reserved1100; break;
case EPG.InnerFECs.Reserved1101: group.InnerFEC = InnerForwardErrorCorrectionModes.Reserved1101; break;
case EPG.InnerFECs.Reserved1110: group.InnerFEC = InnerForwardErrorCorrectionModes.Reserved1110; break;
case EPG.InnerFECs.NoConv: group.InnerFEC = InnerForwardErrorCorrectionModes.NoConv; break;
}
// Report
return(group);
}