private void getVirtualChannelData(ISampleDataProvider dataProvider, BackgroundWorker worker)
{
Logger.Instance.Write("Collecting Virtual Channel data", false, true);
VirtualChannelTable.Clear();
dataProvider.ChangePidMapping(new int[] { 0x1ffb });
Collection <byte> tables = new Collection <byte>();
tables.Add(0xc8);
tables.Add(0xc9);
guideReader = new TSStreamReader(tables, 2000, dataProvider.BufferAddress);
guideReader.Run();
int repeats = 0;
bool done = false;
while (!done)
{
if (worker.CancellationPending)
{
return;
}
Thread.Sleep(2000);
Logger.Instance.Write(".", false, false);
Collection <Mpeg2Section> sections = new Collection <Mpeg2Section>();
guideReader.Lock("LoadMessages");
if (guideReader.Sections.Count != 0)
{
foreach (Mpeg2Section section in guideReader.Sections)
{
sections.Add(section);
}
guideReader.Sections.Clear();
}
guideReader.Release("LoadMessages");
if (sections.Count != 0)
{
processVirtualChannelTable(sections, dataProvider.Frequency.Frequency);
}
done = VirtualChannelTable.Complete;
if (!done)
{
repeats++;
done = (repeats == RunParameters.Instance.Repeats);
}
}
Logger.Instance.Write("", true, false);
Logger.Instance.Write("Stopping reader");
guideReader.Stop();
Logger.Instance.Write("Virtual Channel Data: Channel count: " + VirtualChannelTable.Channels.Count + " buffer space used: " + dataProvider.BufferSpaceUsed);
}
private Collection <TVStation> findAtscStations()
{
Logger.Instance.Write("Collecting ATSC Channel data", false, true);
Collection <TVStation> tvStations = new Collection <TVStation>();
VirtualChannelTable.Clear();
dataProvider.ChangePidMapping(new int[] { 0x1ffb });
Collection <byte> tables = new Collection <byte>();
tables.Add(0xc8);
tables.Add(0xc9);
TSStreamReader guideReader = new TSStreamReader(tables, 50000, dataProvider.BufferAddress);
guideReader.Run();
int repeats = 0;
bool done = false;
while (!done)
{
if (worker.CancellationPending)
{
return(tvStations);
}
Thread.Sleep(2000);
Logger.Instance.Write(".", false, false);
Collection <Mpeg2Section> sections = new Collection <Mpeg2Section>();
guideReader.Lock("LoadMessages");
if (guideReader.Sections.Count != 0)
{
foreach (Mpeg2Section section in guideReader.Sections)
{
sections.Add(section);
}
guideReader.Sections.Clear();
}
guideReader.Release("LoadMessages");
if (sections.Count != 0)
{
processVirtualChannelTable(sections, dataProvider.Frequency.Frequency);
}
done = VirtualChannelTable.Complete;
if (!done)
{
repeats++;
done = (repeats == RunParameters.Instance.Repeats);
}
}
Logger.Instance.Write("", true, false);
Logger.Instance.Write("Stopping reader");
guideReader.Stop();
foreach (VirtualChannel channel in VirtualChannelTable.Channels)
{
TVStation station = new TVStation(channel.ShortName);
station.StationType = TVStationType.Atsc;
station.OriginalNetworkID = channel.CollectionFrequency;
station.TransportStreamID = channel.MajorChannelNumber;
station.ServiceID = channel.MinorChannelNumber;
tvStations.Add(station);
}
return(tvStations);
}