/// <summary>
/// Erzeugt eine neue Gruppe von Quellen.
/// </summary>
public CableGroup()
{
// Set up
SpectrumInversion = SpectrumInversions.Auto;
Modulation = CableModulations.NotDefined;
Bandwidth = Bandwidths.NotDefined;
}
/// <summary>
/// Erzeugt eine neue Gruppe von Quellen.
/// </summary>
public CableGroup()
{
// Set up
SpectrumInversion = SpectrumInversions.Auto;
Modulation = CableModulations.NotDefined;
Bandwidth = Bandwidths.NotDefined;
}
/// <summary>
/// Analysiert die aktuelle Konfiguration des Suchlaufs auf Basis
/// der DVB <i>Network Information Table (NIT)</i> Informationen.
/// </summary>
private void AnalyserThread()
{
// Be safe
try
{
// Configure language
UserProfile.ApplyLanguage();
// Uses hardware manager
using (HardwareManager.Open())
{
// Attach to the hardware itself
Hardware device = HardwareManager.OpenHardware(Profile);
// Reset counters
TotalLocations = m_Locations.Count;
CurrentLocation = 0;
// Last inversion used
SpectrumInversions lastInversion = SpectrumInversions.On;
// Process all transponders
foreach (GroupLocation location in m_Locations)
{
// Update counter
++CurrentLocation;
// Reset
CurrentLocationGroupsPending = 0;
CurrentLocationGroup = 0;
// Check caller
if (!LocationStart(location))
{
return;
}
// Groups found on this location
Dictionary <SourceGroup, bool> found = new Dictionary <SourceGroup, bool>();
// Groups with valid network information - only those are considered
List <SourceGroup> nitAvailable = new List <SourceGroup>();
// Load counter
CurrentLocationGroupsPending = location.Groups.Count;
// Process all groups
foreach (SourceGroup group in location.Groups)
{
// Get the expected type
Type groupType = group.GetType();
// Clone the group
SourceGroup newGroup = SourceGroup.FromString <SourceGroup>(group.ToString());
// Count up
--CurrentLocationGroupsPending;
++CurrentLocationGroup;
// See if this is already processed
if (null != found.Keys.FirstOrDefault(p => p.CompareTo(newGroup, true)))
{
continue;
}
// Check for external termination
if (null == m_Worker)
{
return;
}
// Not supported
if (!Profile.SupportsGroup(newGroup) || !device.CanHandle(newGroup))
{
// Remember
m_UnhandledGroups.Add(newGroup);
// Next
continue;
}
// Check caller
if (!GroupStart(location, newGroup))
{
return;
}
// Attach to the group
if (null != SelectGroup(device, location, newGroup, ref lastInversion))
{
// See if we are a cable group
CableGroup cableGroup = newGroup as CableGroup;
// Attach to the NIT
var nit = device.GetLocationInformation(15000);
if (null != nit)
{
// Remember
nitAvailable.Add(newGroup);
// Process
foreach (SourceGroup other in nit.Groups)
{
if (other.GetType() == groupType)
{
// See if this is a cable group
CableGroup otherCable = other as CableGroup;
// Update inversion
if (null != otherCable)
{
// Other must be cable, too
if (null == cableGroup)
{
continue;
}
// Use same parameters
otherCable.SpectrumInversion = cableGroup.SpectrumInversion;
otherCable.Bandwidth = cableGroup.Bandwidth;
}
// Report
if (ScannerTraceSwitch.Level >= TraceLevel.Info)
{
Trace.WriteLine(string.Format(Properties.Resources.Trace_Scanner_NIT, other), ScannerTraceSwitch.DisplayName);
}
// Mark it
found[other] = true;
}
}
}
}
// Check caller
if (!GroupDone(location, newGroup))
{
return;
}
}
// Create a brand new scan location
ScanLocation scan = location.ToScanLocation();
// Try to update
foreach (SourceGroup group in nitAvailable)
{
// Try to find the full qualified name
SourceGroup nitGroup = found.Keys.FirstOrDefault(p => p.CompareTo(group, true));
// Update
if (null == nitGroup)
{
scan.Groups.Add(group);
}
else
{
scan.Groups.Add(nitGroup);
}
}
// Just remember
m_AnalyseResult[location] = scan;
// Check caller
if (!LocationDone(location))
{
return;
}
}
}
}
catch (Exception e)
{
// Remember
m_ThreadException = e;
}
}
/// <summary>
/// Wählt eine Quellgruppe (Transponder) an und prüft, ob ein Signal anliegt.
/// </summary>
/// <param name="device">Das aktuell verwendete DVB.NET Geräte.</param>
/// <param name="location">Optional der Ursprung der Quellgruppe (Transponder).</param>
/// <param name="group">Die gewünschte Quellgruppe (Transponder).</param>
/// <param name="lastInversion">Bei DVB-C die zuletzt erfolgreich verwendete spektrale Inversion.</param>
/// <returns>Die Informationen zu den Quellen oder <i>null</i>.</returns>
private GroupInformation SelectGroup( Hardware device, GroupLocation location, SourceGroup group, ref SpectrumInversions lastInversion )
{
// See if this is a cable group
var cableGroup = group as CableGroup;
if (cableGroup != null)
if (cableGroup.SpectrumInversion == SpectrumInversions.Auto)
cableGroup.SpectrumInversion = lastInversion;
// Report
if (ScannerTraceSwitch.Level >= TraceLevel.Verbose)
Trace.WriteLine( string.Format( Properties.Resources.Trace_Scanner_1stTune, location, group ), ScannerTraceSwitch.DisplayName );
// Choose group
device.SelectGroup( location, group );
// Did it
var info = device.GetGroupInformation( 5000 );
if (info != null)
return info;
// Report
if (ScannerTraceSwitch.Level >= TraceLevel.Warning)
Trace.WriteLine( string.Format( Properties.Resources.Trace_Scanner_NoGroupInfo, location, group ), ScannerTraceSwitch.DisplayName );
// Not cable
if (cableGroup == null)
return null;
// Swap inversion
lastInversion = (lastInversion == SpectrumInversions.On) ? SpectrumInversions.Off : SpectrumInversions.On;
// Put into group
cableGroup.SpectrumInversion = lastInversion;
// Report
if (ScannerTraceSwitch.Level >= TraceLevel.Verbose)
Trace.WriteLine( string.Format( Properties.Resources.Trace_Scanner_2ndTune, location, group ), ScannerTraceSwitch.DisplayName );
// Choose group
device.SelectGroup( location, group );
// Final try
return device.GetGroupInformation( 5000 );
}
/// <summary>
/// Wählt eine Quellgruppe (Transponder) an und prüft, ob ein Signal anliegt.
/// </summary>
/// <param name="device">Das aktuell verwendete DVB.NET Geräte.</param>
/// <param name="location">Optional der Ursprung der Quellgruppe (Transponder).</param>
/// <param name="group">Die gewünschte Quellgruppe (Transponder).</param>
/// <param name="lastInversion">Bei DVB-C die zuletzt erfolgreich verwendete spektrale Inversion.</param>
/// <returns>Die Informationen zu den Quellen oder <i>null</i>.</returns>
private GroupInformation SelectGroup(Hardware device, GroupLocation location, SourceGroup group, ref SpectrumInversions lastInversion)
{
// See if this is a cable group
var cableGroup = group as CableGroup;
if (cableGroup != null)
{
if (cableGroup.SpectrumInversion == SpectrumInversions.Auto)
{
cableGroup.SpectrumInversion = lastInversion;
}
}
// Report
if (ScannerTraceSwitch.Level >= TraceLevel.Verbose)
{
Trace.WriteLine(string.Format(Properties.Resources.Trace_Scanner_1stTune, location, group), ScannerTraceSwitch.DisplayName);
}
// Choose group
device.SelectGroup(location, group);
// Did it
var info = device.GetGroupInformation(5000);
if (info != null)
{
return(info);
}
// Report
if (ScannerTraceSwitch.Level >= TraceLevel.Warning)
{
Trace.WriteLine(string.Format(Properties.Resources.Trace_Scanner_NoGroupInfo, location, group), ScannerTraceSwitch.DisplayName);
}
// Not cable
if (cableGroup == null)
{
return(null);
}
// Swap inversion
lastInversion = (lastInversion == SpectrumInversions.On) ? SpectrumInversions.Off : SpectrumInversions.On;
// Put into group
cableGroup.SpectrumInversion = lastInversion;
// Report
if (ScannerTraceSwitch.Level >= TraceLevel.Verbose)
{
Trace.WriteLine(string.Format(Properties.Resources.Trace_Scanner_2ndTune, location, group), ScannerTraceSwitch.DisplayName);
}
// Choose group
device.SelectGroup(location, group);
// Final try
return(device.GetGroupInformation(5000));
}
