public async Task SelectChannelByFrequencyAndMapPID(string frequencyAndMapPID)
{
_loggingService.Info($"Selecting channel by frequency and mapPID {frequencyAndMapPID}");
await Task.Run(
() =>
{
DVBTChannel firstChannel = null;
DVBTChannel selectChannel = null;
if (Channels.Count == 0)
{
return;
}
foreach (var ch in Channels)
{
if (firstChannel == null)
{
firstChannel = ch;
}
if (ch.Frequency.ToString() + ch.ProgramMapPID.ToString() == frequencyAndMapPID)
{
selectChannel = ch;
break;
}
}
if (selectChannel == null)
{
selectChannel = firstChannel;
}
SelectedChannel = selectChannel;
});
}
private async Task Tune(long freq, long bandWidth, int dvbtTypeIndex)
{
try
{
//#if DEBUG
// await Task.Delay(1000);
// var channel = new DVBTChannel();
// channel.PIDs = "0,16,17";
// channel.ProgramMapPID = 5000;
// channel.Name = "Channel name";
// channel.ProviderName = "Multiplex";
// channel.Frequency = freq;
// channel.Bandwdith = bandWidth;
// channel.Number = String.Empty;
// channel.DVBTType = dvbtTypeIndex;
// channel.Type = ServiceTypeEnum.DigitalTelevisionService;
// TunedChannels.Add(channel);
// Device.BeginInvokeOnMainThread(() =>
// {
// SelectedChannel = channel;
// });
//#endif
var tuneResult = await _driver.TuneEnhanced(freq, bandWidth, dvbtTypeIndex);
switch (tuneResult.Result)
{
case SearchProgramResultEnum.Error:
_loggingService.Debug("Search error");
SignalStrengthProgress = 0;
return;
case SearchProgramResultEnum.NoSignal:
_loggingService.Debug("No signal");
SignalStrengthProgress = 0;
return;
case SearchProgramResultEnum.OK:
SignalStrengthProgress = tuneResult.SignalPercentStrength / 100.0;
break;
}
var searchMapPIDsResult = await _driver.SearchProgramMapPIDs(false);
switch (searchMapPIDsResult.Result)
{
case SearchProgramResultEnum.Error:
_loggingService.Debug("Search error");
return;
case SearchProgramResultEnum.NoSignal:
_loggingService.Debug("No signal");
return;
case SearchProgramResultEnum.NoProgramFound:
_loggingService.Debug("No program found");
return;
}
var mapPIDs = new List <long>();
var mapPIDToServiceDescriptor = new Dictionary <long, ServiceDescriptor>();
foreach (var sd in searchMapPIDsResult.ServiceDescriptors)
{
mapPIDs.Add(sd.Value);
mapPIDToServiceDescriptor.Add(sd.Value, sd.Key);
}
_loggingService.Debug($"Program MAP PIDs found: {String.Join(",", mapPIDs)}");
if (TuningAborted)
{
_loggingService.Debug($"Tuning aborted");
return;
}
// searching PIDs
var searchProgramPIDsResult = await _driver.SearchProgramPIDs(mapPIDs);
switch (searchProgramPIDsResult.Result)
{
case SearchProgramResultEnum.Error:
_loggingService.Debug($"Error scanning Map PIDs");
break;
case SearchProgramResultEnum.NoSignal:
_loggingService.Debug("No signal");
break;
case SearchProgramResultEnum.NoProgramFound:
_loggingService.Debug("No program found");
break;
case SearchProgramResultEnum.OK:
var totalChannelsAddedCount = 0;
foreach (var kvp in searchProgramPIDsResult.PIDs)
{
var pids = string.Join(",", kvp.Value);
var sDescriptor = mapPIDToServiceDescriptor[kvp.Key];
var ch = new DVBTChannel();
ch.PIDs = pids;
ch.ProgramMapPID = kvp.Key;
ch.Name = sDescriptor.ServiceName;
ch.ProviderName = sDescriptor.ProviderName;
ch.Frequency = freq;
ch.Bandwdith = bandWidth;
ch.Number = String.Empty;
ch.DVBTType = dvbtTypeIndex;
ch.Type = (ServiceTypeEnum)sDescriptor.ServisType;
TunedChannels.Add(ch);
Device.BeginInvokeOnMainThread(() =>
{
SelectedChannel = ch;
});
_loggingService.Debug($"Found channel \"{sDescriptor.ServiceName}\"");
// automatically adding new tuned channel if does not exist
if (!ConfigViewModel.ChannelExists(_channels, ch.Frequency, ch.ProgramMapPID))
{
ch.Number = ConfigViewModel.GetNextChannelNumber(_channels).ToString();
_channels.Add(ch);
await _channelService.SaveChannels(_channels);
totalChannelsAddedCount++;
}
}
if (totalChannelsAddedCount > 0)
{
if (totalChannelsAddedCount > 1)
{
MessagingCenter.Send($"{totalChannelsAddedCount} channels saved", BaseViewModel.MSG_ToastMessage);
}
else
{
MessagingCenter.Send($"Channel saved", BaseViewModel.MSG_ToastMessage);
}
}
break;
}
}
catch (Exception ex)
{
throw;
}
}
public async Task ActionPlay(DVBTChannel channel = null)
{
if (channel == null)
{
channel = _viewModel.SelectedChannel;
}
if (channel == null)
{
return;
}
if (PlayingState == PlayingStateEnum.Recording)
{
MessagingCenter.Send($"Playing {channel.Name} failed (recording in progress)", BaseViewModel.MSG_ToastMessage);
return;
}
if (PlayingState == PlayingStateEnum.PlayingInPreview && _viewModel.PlayingChannel == channel)
{
PlayingState = PlayingStateEnum.Playing;
return;
}
Device.BeginInvokeOnMainThread(() =>
{
if (PlayingState == PlayingStateEnum.Playing || PlayingState == PlayingStateEnum.PlayingInPreview)
{
videoView.MediaPlayer.Stop();
}
});
if (!_driver.Started)
{
MessagingCenter.Send($"Playing {channel.Name} failed (device connection error)", BaseViewModel.MSG_ToastMessage);
return;
}
var playRes = await _driver.Play(channel.Frequency, channel.Bandwdith, channel.DVBTType, channel.PIDsArary);
if (!playRes.OK)
{
MessagingCenter.Send($"Playing {channel.Name} failed (device connection error)", BaseViewModel.MSG_ToastMessage);
return;
}
Device.BeginInvokeOnMainThread(() =>
{
if (_driver.VideoStream != null)
{
_media = new Media(_libVLC, _driver.VideoStream, new string[] { });
videoView.MediaPlayer.Play(_media);
}
});
var playInfo = new PlayStreamInfo
{
Channel = channel,
SignalStrengthPercentage = playRes.SignalStrengthPercentage
};
var eitManager = _driver.GetEITManager(channel.Frequency);
if (eitManager != null)
{
playInfo.CurrentEvent = eitManager.GetEvent(DateTime.Now, Convert.ToInt32(channel.ProgramMapPID));
}
ShowActualPlayingMessage(playInfo);
if (_config.PlayOnBackground)
{
MessagingCenter.Send <MainPage, PlayStreamInfo>(this, BaseViewModel.MSG_PlayInBackgroundNotification, playInfo);
}
_viewModel.PlayingChannel = channel;
PlayingState = PlayingStateEnum.Playing;
}
public async Task PlayChannel(DVBTChannel channel = null)
{
if (channel == null)
{
channel = SelectedChannel;
if (channel == null)
{
return;
}
}
var playInfo = new PlayStreamInfo
{
Channel = channel
};
if (_recordingChannel != null)
{
MessagingCenter.Send($"Playing {channel.Name} failed (recording in progress)", BaseViewModel.MSG_ToastMessage);
return;
}
_loggingService.Debug($"Playing channel {channel}");
try
{
if (!_driver.Started)
{
MessagingCenter.Send($"Playing {channel.Name} failed (device connection error)", BaseViewModel.MSG_ToastMessage);
return;
}
IsRefreshing = true;
var playRes = await _driver.Play(channel.Frequency, channel.Bandwdith, channel.DVBTType, channel.PIDsArary);
if (!playRes.OK)
{
throw new Exception("Play returned false");
}
playInfo.SignalStrengthPercentage = playRes.SignalStrengthPercentage;
var eitManager = _driver.GetEITManager(channel.Frequency);
if (eitManager != null)
{
playInfo.CurrentEvent = eitManager.GetEvent(DateTime.Now, Convert.ToInt32(channel.ProgramMapPID));
}
MessagingCenter.Send(playInfo, BaseViewModel.MSG_PlayStream);
}
catch (Exception ex)
{
_loggingService.Error(ex, $"Playing {channel.Name} failed");
MessagingCenter.Send($"Playing {channel.Name} failed", BaseViewModel.MSG_ToastMessage);
}
finally
{
IsRefreshing = false;
}
}
public async Task ScanEPG(DVBTChannel channel)
{
if (channel == null)
{
channel = SelectedChannel;
if (channel == null)
{
return;
}
}
if (_recordingChannel != null)
{
MessagingCenter.Send($"Cannot scan EPG (recording in progress)", BaseViewModel.MSG_ToastMessage);
return;
}
_loggingService.Debug($"Scanning EPG for channel {channel}");
try
{
if (!_driver.Started)
{
MessagingCenter.Send($"Cannot scan EPG (device connection error)", BaseViewModel.MSG_ToastMessage);
return;
}
await Task.Run(async() =>
{
MessagingCenter.Send($"Scanning EPG ....", BaseViewModel.MSG_LongToastMessage);
var tuned = await _driver.TuneEnhanced(channel.Frequency, channel.Bandwdith, channel.DVBTType);
if (tuned.Result != SearchProgramResultEnum.OK)
{
MessagingCenter.Send($"Scanning EPG failed", BaseViewModel.MSG_ToastMessage);
return;
}
// setting PID 18 + PSI for each channel in the same multiplex:
var res = await _driver.ScanEPG(channel.Frequency, 5000);
await _driver.Stop();
await RefreshEPG();
var msg = String.Empty;
if (!res.OK)
{
msg += "EPG scan failed";
}
if (res.UnsupportedEncoding)
{
if (msg != String.Empty)
{
msg += ", unsupported encoding found";
}
else
{
msg = "Unsupported encoding found";
}
}
if (!string.IsNullOrEmpty(msg))
{
MessagingCenter.Send(msg, BaseViewModel.MSG_ToastMessage);
}
});
}
catch (Exception ex)
{
_loggingService.Error(ex, $"EPG scan failed");
MessagingCenter.Send($"EPG scan failed", BaseViewModel.MSG_ToastMessage);
}
}
private async Task RecordChannel(DVBTChannel channel, bool start)
{
if (channel == null)
{
channel = SelectedChannel;
if (channel == null)
{
return;
}
}
_loggingService.Debug($"Recording channel {channel}: {start}");
try
{
if (start)
{
if (!_driver.Started)
{
MessagingCenter.Send($"Recording failed (device connection error)", BaseViewModel.MSG_ToastMessage);
return;
}
var playRes = await _driver.Play(channel.Frequency, channel.Bandwdith, channel.DVBTType, channel.PIDsArary, false);
if (!playRes.OK)
{
throw new Exception("Play returned false");
}
_recordingChannel = channel;
channel.Recording = true;
await _driver.StartRecording();
MessagingCenter.Send($"Recording started", BaseViewModel.MSG_ToastMessage);
}
else
{
if (!_driver.Started)
{
MessagingCenter.Send($"Stop recording failed (device connection error)", BaseViewModel.MSG_ToastMessage);
return;
}
_driver.StopRecording();
await _driver.Stop();
_recordingChannel = null;
channel.Recording = false;
MessagingCenter.Send($"Recording stopped", BaseViewModel.MSG_ToastMessage);
}
}
catch (Exception ex)
{
_loggingService.Error(ex);
MessagingCenter.Send($"Start/stop recording failed (device connection error)", BaseViewModel.MSG_ToastMessage);
return;
}
channel.NotifyRecordingLabelChange();
}
public async Task ShowChannelMenu(DVBTChannel ch = null)
{
if (ch == null)
{
ch = SelectedChannel;
}
if (ch == null)
{
await _dialogService.Information("No channel selected");
return;
}
var actions = new List <string>();
if (!ch.Recording)
{
actions.Add("Play");
actions.Add("Scan EPG");
actions.Add("Detail & edit");
actions.Add("Record");
actions.Add("Delete");
}
else
{
actions.Add("Show record location");
actions.Add("Stop record");
}
var action = await _dialogService.DisplayActionSheet($"{ch.Name}", "Cancel", actions);
switch (action)
{
case "Play":
await PlayChannel(ch);
break;
case "Scan EPG":
await ScanEPG(ch);
break;
case "Detail & edit":
MessagingCenter.Send(ch.ToString(), BaseViewModel.MSG_EditChannel);
break;
case "Record":
await RecordChannel(ch, true);
break;
case "Show record location":
await _dialogService.Information(_driver.RecordFileName);
break;
case "Stop record":
await RecordChannel(ch, false);
break;
case "Delete":
await DeleteChannel(ch);
break;
}
}
