private void processProgramAssociationSection(ProgramAssociationSection programAssociationSection, Collection <TVStation> tvStations)
{
foreach (ProgramInfo programInfo in programAssociationSection.ProgramInfos)
{
if (programInfo.ProgramNumber != 0)
{
processProgramInfo(programInfo, tvStations);
}
}
}
private void processPATSections(Collection <TVStation> tvStations)
{
dataProvider.ChangePidMapping(new int[] { BDAGraph.PatPid });
TSReaderBase patReader = new TSStreamReader(BDAGraph.PatTable, 2000, dataProvider.BufferAddress);
patReader.Run();
Thread.Sleep(2000);
Collection <Mpeg2Section> sections = new Collection <Mpeg2Section>();
patReader.Lock("ProcessPATSections");
if (patReader.Sections.Count != 0)
{
foreach (Mpeg2Section section in patReader.Sections)
{
sections.Add(section);
}
patReader.Sections.Clear();
}
patReader.Release("ProcessPATSections");
patReader.Stop();
Collection <int> sectionNumbers = new Collection <int>();
if (sections == null)
{
Logger.Instance.Write("No PAT sections received");
return;
}
else
{
foreach (Mpeg2Section section in sections)
{
ProgramAssociationSection programAssociationSection = ProgramAssociationSection.ProcessProgramAssociationTable(section.Data);
if (programAssociationSection != null)
{
if (!sectionNumbers.Contains(programAssociationSection.SectionNumber))
{
processProgramAssociationSection(programAssociationSection, tvStations);
sectionNumbers.Add(programAssociationSection.SectionNumber);
}
}
}
}
}
/// <summary>
/// Process an MPEG2 section from the program association table.
/// </summary>
/// <param name="byteData">The MPEG2 section.</param>
/// <returns>A ProgramAssociationSection instance.</returns>
public static ProgramAssociationSection ProcessProgramAssociationTable(byte[] byteData)
{
Mpeg2ExtendedHeader mpeg2Header = new Mpeg2ExtendedHeader();
try
{
mpeg2Header.Process(byteData);
if (mpeg2Header.Current)
{
int lastIndex = mpeg2Header.Index;
ProgramAssociationSection programAssociationSection = new ProgramAssociationSection();
programAssociationSection.Process(byteData, mpeg2Header);
return(programAssociationSection);
}
}
catch (ArgumentOutOfRangeException e)
{
Logger.Instance.Write("<e> Error processing Program Association Section message: " + e.Message);
}
return(null);
}
private void processProgramAssociationSection(ProgramAssociationSection programAssociationSection, Collection<TVStation> tvStations)
{
foreach (ProgramInfo programInfo in programAssociationSection.ProgramInfos)
{
if (programInfo.ProgramNumber != 0)
processProgramInfo(programInfo, tvStations);
}
}
/// <summary>
/// Process an MPEG2 section from the program association table.
/// </summary>
/// <param name="byteData">The MPEG2 section.</param>
/// <returns>A ProgramAssociationSection instance.</returns>
public static ProgramAssociationSection ProcessProgramAssociationTable(byte[] byteData)
{
Mpeg2ExtendedHeader mpeg2Header = new Mpeg2ExtendedHeader();
try
{
mpeg2Header.Process(byteData);
if (mpeg2Header.Current)
{
int lastIndex = mpeg2Header.Index;
ProgramAssociationSection programAssociationSection = new ProgramAssociationSection();
programAssociationSection.Process(byteData, mpeg2Header);
return (programAssociationSection);
}
}
catch (ArgumentOutOfRangeException e)
{
Logger.Instance.Write("<e> Error processing Program Association Section message: " + e.Message);
}
return (null);
}
