private void processProgramMapSection(ProgramMapSection programMapSection, ProgramInfo programInfo, Collection <TVStation> tvStations)
{
TVStation tvStation = findTVStation(programInfo.ProgramNumber, tvStations);
if (tvStation == null)
{
return;
}
foreach (StreamInfo streamInfo in programMapSection.StreamInfos)
{
if (streamInfo.StreamType == streamTypeVideo)
{
tvStation.VideoPID = streamInfo.ProgramID;
}
if (streamInfo.StreamType == streamTypeAudio)
{
tvStation.AudioPID = streamInfo.ProgramID;
}
if (streamInfo.StreamType == streamTypeDSMCCUserToNetwork)
{
tvStation.DSMCCPID = streamInfo.ProgramID;
}
}
}
private void processProgramInfo(ProgramInfo programInfo, Collection <TVStation> tvStations)
{
dataProvider.ChangePidMapping(new int[] { programInfo.ProgramID });
TSReaderBase pmtReader = new TSStreamReader(BDAGraph.PmtTable, 2000, dataProvider.BufferAddress);
pmtReader.Run();
Collection <Mpeg2Section> sections = new Collection <Mpeg2Section>();
int repeats = 0;
bool done = false;
while (!done)
{
Thread.Sleep(10);
pmtReader.Lock("ProcessPMTSections");
if (pmtReader.Sections.Count != 0)
{
foreach (Mpeg2Section section in pmtReader.Sections)
{
sections.Add(section);
}
pmtReader.Sections.Clear();
}
pmtReader.Release("ProcessPMTSections");
done = (sections.Count != 0);
if (!done)
{
repeats++;
done = (repeats == 500);
}
}
pmtReader.Stop();
if (sections.Count == 0)
{
Logger.Instance.Write("No PMT sections received");
return;
}
else
{
foreach (Mpeg2Section section in sections)
{
ProgramMapSection programMapSection = ProgramMapSection.ProcessProgramMapTable(section.Data);
processProgramMapSection(programMapSection, programInfo, tvStations);
}
}
}
/// <summary>
/// Process an MPEG2 section from the program map table.
/// </summary>
/// <param name="byteData">The MPEG2 section.</param>
/// <returns>A ProgramMapSection instance.</returns>
public static ProgramMapSection ProcessProgramMapTable(byte[] byteData)
{
Mpeg2ExtendedHeader mpeg2Header = new Mpeg2ExtendedHeader();
try
{
mpeg2Header.Process(byteData);
if (mpeg2Header.Current)
{
ProgramMapSection programMapSection = new ProgramMapSection();
programMapSection.Process(byteData, mpeg2Header);
return(programMapSection);
}
}
catch (ArgumentOutOfRangeException e)
{
Logger.Instance.Write("<e> Error processing Program Map Section message: " + e.Message);
}
return(null);
}
/// <summary>
/// Process an MPEG2 section from the program map table.
/// </summary>
/// <param name="byteData">The MPEG2 section.</param>
/// <returns>A ProgramMapSection instance.</returns>
public static ProgramMapSection ProcessProgramMapTable(byte[] byteData)
{
Mpeg2ExtendedHeader mpeg2Header = new Mpeg2ExtendedHeader();
try
{
mpeg2Header.Process(byteData);
if (mpeg2Header.Current)
{
ProgramMapSection programMapSection = new ProgramMapSection();
programMapSection.Process(byteData, mpeg2Header);
return (programMapSection);
}
}
catch (ArgumentOutOfRangeException e)
{
Logger.Instance.Write("<e> Error processing Program Map Section message: " + e.Message);
}
return (null);
}
private void processProgramMapSection(ProgramMapSection programMapSection, ProgramInfo programInfo, Collection<TVStation> tvStations)
{
TVStation tvStation = findTVStation(programInfo.ProgramNumber, tvStations);
if (tvStation == null)
return;
foreach (StreamInfo streamInfo in programMapSection.StreamInfos)
{
if (streamInfo.StreamType == streamTypeVideo)
tvStation.VideoPID = streamInfo.ProgramID;
if (streamInfo.StreamType == streamTypeAudio)
tvStation.AudioPID = streamInfo.ProgramID;
if (streamInfo.StreamType == streamTypeDSMCCUserToNetwork)
tvStation.DSMCCPID = streamInfo.ProgramID;
}
}
