private void processServiceDescriptionSection(ServiceDescriptionSection serviceDescriptionSection, Collection <TVStation> tvStations, TuningFrequency frequency)
{
foreach (ServiceDescription serviceDescription in serviceDescriptionSection.ServiceDescriptions)
{
bool processStation = checkServiceInfo(serviceDescription);
if (processStation)
{
TVStation tvStation = new TVStation(serviceDescription.ServiceName);
tvStation.ProviderName = serviceDescription.ProviderName;
if (useActualFrequency)
{
tvStation.Frequency = NetworkInformationSection.GetFrequency(serviceDescriptionSection.OriginalNetworkID, serviceDescriptionSection.TransportStreamID) * 10;
if (tvStation.Frequency == 0)
{
tvStation.Frequency = frequency.Frequency;
Logger.Instance.Write("Station : " + tvStation.Name + " not found in Network Information Table");
}
}
else
{
tvStation.Frequency = frequency.Frequency;
}
tvStation.OriginalNetworkID = serviceDescriptionSection.OriginalNetworkID;
tvStation.TransportStreamID = serviceDescriptionSection.TransportStreamID;
tvStation.ServiceID = serviceDescription.ServiceID;
tvStation.Encrypted = serviceDescription.Scrambled;
tvStation.ServiceType = serviceDescription.ServiceType;
tvStation.ScheduleAvailable = serviceDescription.EITSchedule;
tvStation.NextFollowingAvailable = serviceDescription.EITPresentFollowing;
tvStation.TunerType = frequency.TunerType;
if (frequency.TunerType == TunerType.Satellite)
{
Satellite satellite = ((SatelliteFrequency)frequency).Provider as Satellite;
if (satellite != null)
{
tvStation.Satellite = satellite;
}
}
if (RunParameters.Instance.Options.Contains("USECHANNELID"))
{
if (serviceDescription.ChannelNumber != -1)
{
tvStation.OriginalChannelNumber = serviceDescription.ChannelNumber;
}
}
addStation(tvStations, tvStation);
}
}
}
/// <summary>
/// Process an MPEG2 section from the service description table.
/// </summary>
/// <param name="byteData">The MPEG2 section.</param>
/// <returns>A ServiceDescriptionSection instance.</returns>
public static ServiceDescriptionSection ProcessServiceDescriptionTable(byte[] byteData)
{
if (RunParameters.Instance.DebugIDs.Contains("DUMPSDTBLOCK"))
{
Logger.Instance.Dump("Service Description Block", byteData, byteData.Length);
}
Mpeg2ExtendedHeader mpeg2Header = new Mpeg2ExtendedHeader();
try
{
mpeg2Header.Process(byteData);
if (mpeg2Header.Current)
{
try
{
ServiceDescriptionSection serviceDescriptionSection = new ServiceDescriptionSection();
serviceDescriptionSection.Process(byteData, mpeg2Header);
serviceDescriptionSection.LogMessage();
return(serviceDescriptionSection);
}
catch (ArgumentOutOfRangeException e)
{
Logger.Instance.Write(e.Message);
return(null);
}
}
}
catch (ArgumentOutOfRangeException e)
{
Logger.Instance.Write("<e> Error processing Service Description Section message: " + e.Message);
}
return(null);
}
private void processServiceDescriptionSection(ServiceDescriptionSection serviceDescriptionSection, Collection<TVStation> tvStations, TuningFrequency frequency)
{
foreach (ServiceDescription serviceDescription in serviceDescriptionSection.ServiceDescriptions)
{
bool processStation = checkServiceInfo(serviceDescription);
if (processStation)
{
TVStation tvStation = new TVStation(serviceDescription.ServiceName);
tvStation.ProviderName = serviceDescription.ProviderName;
if (useActualFrequency)
{
tvStation.Frequency = NetworkInformationSection.GetFrequency(serviceDescriptionSection.OriginalNetworkID, serviceDescriptionSection.TransportStreamID) * 10;
if (tvStation.Frequency == 0)
{
tvStation.Frequency = frequency.Frequency;
Logger.Instance.Write("Station : " + tvStation.Name + " not found in Network Information Table");
}
}
else
tvStation.Frequency = frequency.Frequency;
tvStation.OriginalNetworkID = serviceDescriptionSection.OriginalNetworkID;
tvStation.TransportStreamID = serviceDescriptionSection.TransportStreamID;
tvStation.ServiceID = serviceDescription.ServiceID;
tvStation.Encrypted = serviceDescription.Scrambled;
tvStation.ServiceType = serviceDescription.ServiceType;
tvStation.ScheduleAvailable = serviceDescription.EITSchedule;
tvStation.NextFollowingAvailable = serviceDescription.EITPresentFollowing;
tvStation.TunerType = frequency.TunerType;
if (frequency.TunerType == TunerType.Satellite)
{
Satellite satellite = ((SatelliteFrequency)frequency).Provider as Satellite;
if (satellite != null)
tvStation.Satellite = satellite;
}
if (RunParameters.Instance.Options.Contains("USECHANNELID"))
{
if (serviceDescription.ChannelNumber != -1)
tvStation.OriginalChannelNumber = serviceDescription.ChannelNumber;
}
addStation(tvStations, tvStation);
}
}
}
private Collection <TVStation> findDvbStations()
{
if (useActualFrequency || RunParameters.Instance.DebugIDs.Contains("CREATESATINI"))
{
processNITSections(worker);
}
dataProvider.ChangePidMapping(pids);
if (!RunParameters.Instance.TraceIDs.Contains("BDA"))
{
Logger.Instance.Write("Collecting station data", false, true);
}
else
{
Logger.Instance.Write("Collecting station data");
}
Collection <TVStation> tvStations = new Collection <TVStation>();
Collection <byte> tables = new Collection <byte>();
tables.Add(BDAGraph.SdtTable);
if (searchOtherTable)
{
tables.Add(BDAGraph.SdtOtherTable);
}
TSStreamReader stationReader = stationReader = new TSStreamReader(tables, 2000, dataProvider.BufferAddress);
stationReader.Run();
Collection <Mpeg2Section> sections = null;
int lastCount = 0;
int repeats = 0;
bool done = false;
while (!done)
{
if (worker != null && worker.CancellationPending)
{
stationReader.Stop();
return(null);
}
Thread.Sleep(2000);
if (!RunParameters.Instance.TraceIDs.Contains("BDA"))
{
Logger.Instance.Write(".", false, false);
}
else
{
Logger.Instance.Write("BDA Buffer space used " + dataProvider.BufferSpaceUsed);
}
sections = new Collection <Mpeg2Section>();
stationReader.Lock("ProcessSDTSections");
if (stationReader.Sections.Count != 0)
{
foreach (Mpeg2Section section in stationReader.Sections)
{
sections.Add(section);
}
stationReader.Sections.Clear();
}
stationReader.Release("ProcessSDTSections");
foreach (Mpeg2Section section in sections)
{
ServiceDescriptionSection serviceDescriptionSection = ServiceDescriptionSection.ProcessServiceDescriptionTable(section.Data);
if (serviceDescriptionSection != null)
{
processServiceDescriptionSection(serviceDescriptionSection, tvStations, dataProvider.Frequency);
}
}
if (tvStations.Count == lastCount)
{
repeats++;
done = (repeats == RunParameters.Instance.Repeats);
}
else
{
repeats = 0;
}
lastCount = tvStations.Count;
}
if (!RunParameters.Instance.TraceIDs.Contains("BDA"))
{
Logger.Instance.Write("", true, false);
}
Logger.Instance.Write("Stopping station reader for frequency " + dataProvider.Frequency);
stationReader.Stop();
int bufferSpaceUsed = dataProvider.BufferSpaceUsed;
if (dataProvider.Frequency.CollectionType == CollectionType.MHEG5 && tvStations.Count != 0)
{
int debugPid = -1;
foreach (string debugID in RunParameters.Instance.DebugIDs)
{
if (debugID.StartsWith("MHEG5PID-"))
{
string[] parts = debugID.Split(new char[] { '-' });
debugPid = Int32.Parse(parts[1]);
}
}
if (debugPid == -1)
{
Logger.Instance.Write("Collecting PAT/PMT data to locate MHEG5 pid(s)");
processPATSections(tvStations);
foreach (TVStation station in tvStations)
{
if (!station.Excluded && station.DSMCCPID != 0)
{
dataProvider.Frequency.DSMCCPid = station.DSMCCPID;
}
}
}
else
{
dataProvider.Frequency.DSMCCPid = debugPid;
}
}
Logger.Instance.Write("Stations: " + tvStations.Count + " buffer space used: " + bufferSpaceUsed + " discontinuities: " + stationReader.Discontinuities);
return(tvStations);
}
/// <summary>
/// Process an MPEG2 section from the service description table.
/// </summary>
/// <param name="byteData">The MPEG2 section.</param>
/// <returns>A ServiceDescriptionSection instance.</returns>
public static ServiceDescriptionSection ProcessServiceDescriptionTable(byte[] byteData)
{
if (RunParameters.Instance.DebugIDs.Contains("DUMPSDTBLOCK"))
Logger.Instance.Dump("Service Description Block", byteData, byteData.Length);
Mpeg2ExtendedHeader mpeg2Header = new Mpeg2ExtendedHeader();
try
{
mpeg2Header.Process(byteData);
if (mpeg2Header.Current)
{
try
{
ServiceDescriptionSection serviceDescriptionSection = new ServiceDescriptionSection();
serviceDescriptionSection.Process(byteData, mpeg2Header);
serviceDescriptionSection.LogMessage();
return (serviceDescriptionSection);
}
catch (ArgumentOutOfRangeException e)
{
Logger.Instance.Write(e.Message);
return (null);
}
}
}
catch (ArgumentOutOfRangeException e)
{
Logger.Instance.Write("<e> Error processing Service Description Section message: " + e.Message);
}
return (null);
}