public List <Channel> GetVirtualChannels()
{
if (State != ServerGraphState.Running)
{
throw new InvalidOperationException("Graph must be running to retreive Virtual Channel Table");
}
List <Channel> items = new List <Channel>();
try
{
VirtualChannelTable vct = _vctParser.GetVirtualChannelTable();
foreach (VirtualChannelTable.Entry e in vct.Items)
{
if ((e.ServiceType == VCTServiceTypes.ATSCDigitalTelevision) ||
(e.ServiceType == VCTServiceTypes.ATSCAudio))
{
items.Add(e.ToChannel());
}
}
return(items);
}
catch (Exception ex)
{
AppLogger.Dump(ex);
return(items);
}
}
/// <summary>
/// Retrieves all of the virtual channels for the currently tuned physical channel
/// </summary>
/// <returns></returns>
public override List <Channel> GetVirtualChannels()
{
if (State != GraphState.Running)
{
throw new InvalidOperationException("Graph must be running to retreive Virtual Channel Table");
}
List <Channel> items = new List <Channel>();
try
{
VirtualChannelTable vct = _parser.GetVirtualChannelTable();
if (vct.Items.Count > 0)
{
Channel physical = this.GetCurrentChannel();
foreach (VirtualChannelTable.Entry e in vct.Items)
{
if ((e.ServiceType == VCTServiceTypes.ATSCDigitalTelevision) ||
(e.ServiceType == VCTServiceTypes.ATSCAudio))
{
Channel ch = e.ToChannel();
ch.PhysicalChannel = physical.PhysicalChannel;
ch.CarrierFrequency = physical.CarrierFrequency;
items.Add(ch);
}
}
}
return(items);
}
catch (Exception ex)
{
ErrorLogger.DumpToDebug(ex);
return(items);
}
}
