GetTuningChannel() public method

public GetTuningChannel ( TvDatabase.TuningDetail detail ) : IChannel
detail TvDatabase.TuningDetail
return IChannel
Ejemplo n.º 1
0
 private void DoScan()
 {
   int tvChannelsNew = 0;
   int radioChannelsNew = 0;
   int tvChannelsUpdated = 0;
   int radioChannelsUpdated = 0;
   string buttonText = mpButtonScanTv.Text;
   try
   {
     _isScanning = true;
     _stopScanning = false;
     mpButtonScanTv.Text = "Cancel...";
     RemoteControl.Instance.EpgGrabberEnabled = false;
     if (_atscChannels.Count == 0)
       return;
     mpComboBoxFrequencies.Enabled = false;
     listViewStatus.Items.Clear();
     TvBusinessLayer layer = new TvBusinessLayer();
     Card card = layer.GetCardByDevicePath(RemoteControl.Instance.CardDevice(_cardNumber));
     IUser user = new User();
     user.CardId = _cardNumber;
     int minchan = 2;
     int maxchan = 69 + 1;
     if ((string)mpComboBoxTuningMode.SelectedItem == "Clear QAM Cable")
     {
       minchan = 1;
       maxchan = _atscChannels.Count + 1;
     }
     else if ((string)mpComboBoxTuningMode.SelectedItem == "Digital Cable")
     {
       minchan = 0;
       maxchan = 1;
     }
     for (int index = minchan; index < maxchan; ++index)
     {
       if (_stopScanning)
         return;
       float percent = ((float)(index)) / (maxchan - minchan);
       percent *= 100f;
       if (percent > 100f)
         percent = 100f;
       progressBar1.Value = (int)percent;
       ATSCChannel tuneChannel = new ATSCChannel();
       tuneChannel.NetworkId = -1;
       tuneChannel.TransportId = -1;
       tuneChannel.ServiceId = -1;
       tuneChannel.MinorChannel = -1;
       tuneChannel.MajorChannel = -1;
       string line;
       if ((string)mpComboBoxTuningMode.SelectedItem == "Clear QAM Cable")
       {
         tuneChannel.PhysicalChannel = index;
         tuneChannel.Frequency = _atscChannels[index - 1].frequency;
         if (tuneChannel.Frequency < 10000)
         {
           continue;
         }
         tuneChannel.ModulationType = ModulationType.Mod256Qam;
         line = string.Format("physical channel = {0}, frequency = {1} kHz, modulation = 256 QAM", tuneChannel.PhysicalChannel, tuneChannel.Frequency);
         Log.Info("ATSC: scanning clear QAM cable, {0}, frequency plan = {1}", line, mpComboBoxFrequencies.SelectedItem);
       }
       else if ((string)mpComboBoxTuningMode.SelectedItem == "ATSC Digital Terrestrial")
       {
         tuneChannel.PhysicalChannel = index;
         tuneChannel.Frequency = -1;
         tuneChannel.ModulationType = ModulationType.Mod8Vsb;
         line = string.Format("physical channel = {0}, modulation = 8 VSB", tuneChannel.PhysicalChannel);
         Log.Info("ATSC: scanning ATSC over-the-air, {0}", line);
       }
       else
       {
         tuneChannel.PhysicalChannel = 0;
         tuneChannel.ModulationType = ModulationType.Mod256Qam;
         line = "out-of-band service information";
         Log.Info("ATSC: scanning digital cable, {0}", line);
       }
       line += "... ";
       ListViewItem item = listViewStatus.Items.Add(new ListViewItem(line));
       item.EnsureVisible();
       if (index == minchan)
       {
         RemoteControl.Instance.Scan(ref user, tuneChannel, -1);
       }
       IChannel[] channels = RemoteControl.Instance.Scan(_cardNumber, tuneChannel);
       UpdateStatus();
       if (channels == null || channels.Length == 0)
       {
         if (tuneChannel.PhysicalChannel > 0 && !RemoteControl.Instance.TunerLocked(_cardNumber))
         {
           line += "no signal";
         }
         else
         {
           line += "signal locked, no channels found";
         }
         item.Text = line;
         item.ForeColor = Color.Red;
         continue;
       }
       int newChannels = 0;
       int updatedChannels = 0;
       for (int i = 0; i < channels.Length; ++i)
       {
         Channel dbChannel;
         ATSCChannel channel = (ATSCChannel)channels[i];
         //No support for channel moving, or merging with existing channels here.
         //We do not know how ATSC works to correctly implement this.
         TuningDetail currentDetail = layer.GetTuningDetail(channel);
         if (currentDetail != null)
         {
           if (channel.IsDifferentTransponder(layer.GetTuningChannel(currentDetail)))
           {
             currentDetail = null;
           }
         }
         bool exists;
         if (currentDetail == null)
         {
           //add new channel
           exists = false;
           dbChannel = layer.AddNewChannel(channel.Name, channel.LogicalChannelNumber);
           dbChannel.SortOrder = 10000;
           if (channel.LogicalChannelNumber >= 1)
           {
             dbChannel.SortOrder = channel.LogicalChannelNumber;
           }
         }
         else
         {
           exists = true;
           dbChannel = currentDetail.ReferencedChannel();
         }
         dbChannel.IsTv = channel.IsTv;
         dbChannel.IsRadio = channel.IsRadio;
         dbChannel.Persist();
         if (dbChannel.IsTv)
         {
           layer.AddChannelToGroup(dbChannel, TvConstants.TvGroupNames.AllChannels);
         }
         if (dbChannel.IsRadio)
         {
           layer.AddChannelToRadioGroup(dbChannel, TvConstants.RadioGroupNames.AllChannels);
         }
         if (currentDetail == null)
         {
           layer.AddTuningDetails(dbChannel, channel);
         }
         else
         {
           //update tuning details...
           TuningDetail td = layer.UpdateTuningDetails(dbChannel, channel, currentDetail);
           td.Persist();
         }
         if (channel.IsTv)
         {
           if (exists)
           {
             tvChannelsUpdated++;
             updatedChannels++;
           }
           else
           {
             tvChannelsNew++;
             newChannels++;
           }
         }
         if (channel.IsRadio)
         {
           if (exists)
           {
             radioChannelsUpdated++;
             updatedChannels++;
           }
           else
           {
             radioChannelsNew++;
             newChannels++;
           }
         }
         layer.MapChannelToCard(card, dbChannel, false);
       }
       line += string.Format("new = {0}, updated = {1}", newChannels, updatedChannels);
       item.Text = line;
       Log.Info("ATSC: scan result, new = {0}, updated = {1}", newChannels, updatedChannels);
     }
   }
   catch (Exception ex)
   {
     Log.Write(ex);
   }
   finally
   {
     IUser user = new User();
     user.CardId = _cardNumber;
     RemoteControl.Instance.StopCard(user);
     RemoteControl.Instance.EpgGrabberEnabled = true;
     progressBar1.Value = 100;
     mpComboBoxTuningMode.Enabled = true;
     UpdateQamFrequencyFieldAvailability();
     mpButtonScanTv.Text = buttonText;
     _isScanning = false;
   }
   listViewStatus.Items.Add(
     new ListViewItem(String.Format("Total radio channels, new = {0}, updated = {1}", radioChannelsNew,
                                    radioChannelsUpdated)));
   listViewStatus.Items.Add(
     new ListViewItem(String.Format("Total TV channels, new = {0} updated = {1}", tvChannelsNew, tvChannelsUpdated)));
   ListViewItem lastItem = listViewStatus.Items.Add(new ListViewItem("Scan done!"));
   lastItem.EnsureVisible();
   Log.Info("ATSC: scan summary, new TV = {0}, updated TV = {1}, new radio = {2}, updated radio = {3}", tvChannelsNew, tvChannelsUpdated, radioChannelsNew, radioChannelsUpdated);
 }