///<summary>
/// Returns the channel scanner interface
///</summary>
///<returns></returns>
public IAnalogChanelScan GetChannelScanner()
{
IAnalogChanelScan channelScanner = null;
if (_tsFileSink != null)
{
channelScanner = (IAnalogChanelScan)_tsFileSink;
}
return(channelScanner);
}
/// <summary>
/// Tunes to the channel specified and will start scanning for any channel
/// </summary>
/// <param name="channel">channel to tune to</param>
/// <param name="settings"></param>
/// <returns>list of channels found</returns>
public List <IChannel> Scan(IChannel channel, ScanParameters settings)
{
_card.IsScanning = true;
_card.Tune(0, channel);
if (_card.IsTunerLocked)
{
if (channel.IsTv)
{
if (_card.VideoFrequency == _previousFrequency)
{
return(new List <IChannel>());
}
_previousFrequency = _card.VideoFrequency;
}
if (channel.IsTv)
{
try
{
_scanner = _card.GetChannelScanner();
_event = new ManualResetEvent(false);
_scanner.SetCallBack(this);
_scanner.Start();
_event.WaitOne(settings.TimeOutAnalog * 1000, true);
IntPtr serviceName;
_scanner.GetChannel(out serviceName);
_scanner.Stop();
string channelName = DvbTextConverter.Convert(serviceName, "");
int pos = channelName.LastIndexOf("teletext", StringComparison.InvariantCultureIgnoreCase);
if (pos != -1)
{
channelName = channelName.Substring(0, pos);
}
//Some times channel name includes program name after :
pos = channelName.LastIndexOf(":");
if (pos != -1)
{
channelName = channelName.Substring(0, pos);
}
channelName = channelName.TrimEnd(new char[] { '\'', '\"', '´', '`' });
channelName = channelName.Trim();
if (channelName != "")
{
channel.Name = "";
for (int x = 0; x < channelName.Length; ++x)
{
char k = channelName[x];
if (k < (char)32 || k > (char)127)
{
break;
}
channel.Name += k.ToString();
}
}
}
finally
{
if (_scanner != null)
{
_scanner.SetCallBack(null);
_scanner.Stop();
}
if (_event != null)
{
_event.Close();
}
}
}
List <IChannel> list = new List <IChannel>();
list.Add(channel);
_card.IsScanning = false;
return(list);
}
_card.IsScanning = false;
return(null);
}
/// <summary>
/// Tunes to the channel specified and will start scanning for any channel
/// </summary>
/// <param name="channel">channel to tune to</param>
/// <param name="settings"></param>
/// <returns>list of channels found</returns>
public List<IChannel> Scan(IChannel channel, ScanParameters settings)
{
_card.IsScanning = true;
_card.Tune(0, channel);
if (_card.IsTunerLocked)
{
if (channel.IsTv)
{
if (_card.VideoFrequency == _previousFrequency)
return new List<IChannel>();
_previousFrequency = _card.VideoFrequency;
}
if (channel.IsTv)
{
try
{
_scanner = _card.GetChannelScanner();
_event = new ManualResetEvent(false);
_scanner.SetCallBack(this);
_scanner.Start();
_event.WaitOne(settings.TimeOutAnalog * 1000, true);
IntPtr serviceName;
_scanner.GetChannel(out serviceName);
_scanner.Stop();
string channelName = DvbTextConverter.Convert(serviceName, "");
int pos = channelName.LastIndexOf("teletext", StringComparison.InvariantCultureIgnoreCase);
if (pos != -1)
{
channelName = channelName.Substring(0, pos);
}
//Some times channel name includes program name after :
pos = channelName.LastIndexOf(":");
if (pos != -1)
{
channelName = channelName.Substring(0, pos);
}
channelName = channelName.TrimEnd(new char[] {'\'', '\"', '´', '`'});
channelName = channelName.Trim();
if (channelName != "")
{
channel.Name = "";
for (int x = 0; x < channelName.Length; ++x)
{
char k = channelName[x];
if (k < (char)32 || k > (char)127)
break;
channel.Name += k.ToString();
}
}
}
finally
{
if (_scanner != null)
{
_scanner.SetCallBack(null);
_scanner.Stop();
}
if (_event != null)
{
_event.Close();
}
}
}
List<IChannel> list = new List<IChannel>();
list.Add(channel);
_card.IsScanning = false;
return list;
}
_card.IsScanning = false;
return null;
}
