/// <summary>
/// Beginnt mit dem Auslesen der Quelldaten.
/// </summary>
/// <param name="source">Die gewünschte Quelle.</param>
/// <param name="device">Das zu verwendende Gerät.</param>
/// <param name="profile">Optional das zu berücksichtigende Geräteprofil.</param>
/// <returns>Die Hintergrundaufgabe zum Auslesen der Quelledaten.</returns>
public static CancellableTask <SourceInformation> GetSourceInformationAsync(this Hardware device, SourceIdentifier source, Profile profile = null)
{
// Validate
if (device == null)
{
throw new ArgumentNullException("no hardware to use", "device");
}
if (source == null)
{
throw new ArgumentException("no source to get information for", "source");
}
// Attach to tasks
var patReader = device.AssociationTableReader;
var groupReader = device.GroupReader;
// Start
return
(CancellableTask <SourceInformation> .Run(cancel =>
{
// Check tasks
if (groupReader == null)
{
return null;
}
if (patReader == null)
{
return null;
}
// Wait on tasks
if (!groupReader.CancellableWait(cancel))
{
return null;
}
if (!patReader.CancellableWait(cancel))
{
return null;
}
// Get the current group information
var groupInfo = groupReader.Result;
if (groupInfo == null)
{
return null;
}
// See if group exists
if (!groupInfo.Sources.Any(source.Equals))
{
return null;
}
// Find the stream identifier for the service
var pmtIdentifier = patReader.Result.FindService(source.Service);
if (!pmtIdentifier.HasValue)
{
return null;
}
// Wait for mapping table
var pmtReader = device.GetTableAsync <PMT>(pmtIdentifier.Value);
if (!pmtReader.CancellableWait(cancel))
{
return null;
}
// Request table
var pmts = pmtReader.Result;
if (pmts == null)
{
return null;
}
// Create dummy
var currentSettings = new SourceInformation {
Source = source, VideoType = VideoTypes.NoVideo
};
// Process all PMT - actually should be only one
foreach (var pmt in pmts)
{
// Overwrite encryption if CA descriptor is present
if (pmt.Table.Descriptors != null)
{
currentSettings.IsEncrypted = pmt.Table.Descriptors.Any(descriptor => EPG.DescriptorTags.CA == descriptor.Tag);
}
// Process the program entries
foreach (var program in pmt.Table.ProgramEntries)
{
currentSettings.Update(program);
}
}
// Find the related station information
var station = groupInfo.Sources.FirstOrDefault(source.Equals) as Station;
if (station != null)
{
// Take data from there
currentSettings.Provider = station.Provider;
currentSettings.Name = station.Name;
// See if this is a service
currentSettings.IsService = station.IsService;
// Overwrite encryption if regular service entry exists
if (!currentSettings.IsService)
{
currentSettings.IsEncrypted = station.IsEncrypted;
}
}
// See if profile is attached
if (profile != null)
{
// Apply the modifier
var modifier = profile.GetFilter(currentSettings.Source);
if (modifier != null)
{
modifier.ApplyTo(currentSettings);
}
}
// Report
return currentSettings;
}));
}
/// <summary>
/// Beginnt mit dem Auslesen der Quelldaten.
/// </summary>
/// <param name="source">Die gewünschte Quelle.</param>
/// <param name="device">Das zu verwendende Gerät.</param>
/// <param name="profile">Optional das zu berücksichtigende Geräteprofil.</param>
/// <returns>Die Hintergrundaufgabe zum Auslesen der Quelledaten.</returns>
public static CancellableTask<SourceInformation> GetSourceInformationAsync( this Hardware device, SourceIdentifier source, Profile profile = null )
{
// Validate
if (device == null)
throw new ArgumentNullException( "no hardware to use", "device" );
if (source == null)
throw new ArgumentException( "no source to get information for", "source" );
// Attach to tasks
var patReader = device.AssociationTableReader;
var groupReader = device.GroupReader;
// Start
return
CancellableTask<SourceInformation>.Run( cancel =>
{
// Check tasks
if (groupReader == null)
return null;
if (patReader == null)
return null;
// Wait on tasks
if (!groupReader.CancellableWait( cancel ))
return null;
if (!patReader.CancellableWait( cancel ))
return null;
// Get the current group information
var groupInfo = groupReader.Result;
if (groupInfo == null)
return null;
// See if group exists
if (!groupInfo.Sources.Any( source.Equals ))
return null;
// Find the stream identifier for the service
var pmtIdentifier = patReader.Result.FindService( source.Service );
if (!pmtIdentifier.HasValue)
return null;
// Wait for mapping table
var pmtReader = device.GetTableAsync<PMT>( pmtIdentifier.Value );
if (!pmtReader.CancellableWait( cancel ))
return null;
// Request table
var pmts = pmtReader.Result;
if (pmts == null)
return null;
// Create dummy
var currentSettings = new SourceInformation { Source = source, VideoType = VideoTypes.NoVideo };
// Process all PMT - actually should be only one
foreach (var pmt in pmts)
{
// Overwrite encryption if CA descriptor is present
if (pmt.Table.Descriptors != null)
currentSettings.IsEncrypted = pmt.Table.Descriptors.Any( descriptor => EPG.DescriptorTags.CA == descriptor.Tag );
// Process the program entries
foreach (var program in pmt.Table.ProgramEntries)
currentSettings.Update( program );
}
// Find the related station information
var station = groupInfo.Sources.FirstOrDefault( source.Equals ) as Station;
if (station != null)
{
// Take data from there
currentSettings.Provider = station.Provider;
currentSettings.Name = station.Name;
// See if this is a service
currentSettings.IsService = station.IsService;
// Overwrite encryption if regular service entry exists
if (!currentSettings.IsService)
currentSettings.IsEncrypted = station.IsEncrypted;
}
// See if profile is attached
if (profile != null)
{
// Apply the modifier
var modifier = profile.GetFilter( currentSettings.Source );
if (modifier != null)
modifier.ApplyTo( currentSettings );
}
// Report
return currentSettings;
} );
}
/// <summary>
/// Beginnt die Aufzeichnung in einen <i>Transport Stream</i> - optional als
/// Datei.
/// </summary>
/// <param name="nextPID">Die erste Datenstromkennung (PID), die in der Aufzeichnungsdatei verwendet werden darf.</param>
/// <param name="recreate">Gesetzt, wenn ein Neustart aufgrund veränderter Nutzdatenströme erforderlich wurde.</param>
/// <exception cref="ArgumentException">Eine Aufzeichnung der angegebenen Quelle ist nicht möglich.</exception>
private void CreateStream(short nextPID, bool recreate)
{
// Try to get the full name
var filePath = m_OriginalPath;
if (filePath != null)
{
if (m_FileCount > 0)
{
// Split off the parts
var name = Path.GetFileNameWithoutExtension(filePath);
var dir = Path.GetDirectoryName(filePath);
var ext = Path.GetExtension(filePath);
// Construct new name
filePath = Path.Combine(dir, $"{name} - {m_FileCount}{ext}");
}
}
// Try to decrypt
if (m_Decrypting = m_OriginalSettings.IsEncrypted)
{
try
{
// Process
Hardware.Decrypt(Source);
}
catch
{
// Ignore any error
m_Decrypting = false;
}
}
// Type of the video
EPG.StreamTypes?videoType;
// Video first
if (m_OriginalSettings.VideoStream == 0)
{
videoType = null;
}
else
{
videoType = (m_OriginalSettings.VideoType == VideoTypes.H264) ? EPG.StreamTypes.H264 : EPG.StreamTypes.Video13818;
}
// Get the buffer size
var bufferSize = (FileBufferSizeChooser == null) ? null : FileBufferSizeChooser(videoType);
// Create the new stream
m_TransportStream = new Manager(filePath, nextPID, bufferSize.GetValueOrDefault(Manager.DefaultBufferSize));
// Attach PCR sink
m_TransportStream.OnWritingPCR = m_WritePCRSink;
// Report of the actually selected streams
StreamSelection result = new StreamSelection();
// Cleanup on any error
try
{
// Video first
if (videoType.HasValue)
{
AddConsumer(m_OriginalSettings.VideoStream, StreamTypes.Video, m_TransportStream.AddVideo((byte)videoType.Value));
}
// Select audio
ProcessAudioSelection(AudioTypes.MP2, result.MP2Tracks, StreamSelection.MP2Tracks);
ProcessAudioSelection(AudioTypes.AC3, result.AC3Tracks, StreamSelection.AC3Tracks);
// Videotext
if (StreamSelection.Videotext)
{
if (0 != m_OriginalSettings.TextStream)
{
// Register
AddConsumer(m_OriginalSettings.TextStream, StreamTypes.VideoText, m_TransportStream.AddTeleText());
// Remember
result.Videotext = true;
}
}
// Subtitle streams
var subtitles = new Dictionary <ushort, List <EPG.SubtitleInfo> >();
// Preset mode
result.SubTitles.LanguageMode = LanguageModes.All;
// All audio
// Subtitles
foreach (var subtitle in m_OriginalSettings.Subtitles)
{
// Check for primary
if (StreamSelection.SubTitles.LanguageMode == LanguageModes.Primary)
{
// Attach to the list
AddSubtitleInformation(subtitle, subtitles);
// Copy over
result.SubTitles.LanguageMode = LanguageModes.Primary;
// Remember
result.SubTitles.Languages.Add(subtitle.Language);
// Done
break;
}
// Standard selection
if (StreamSelection.SubTitles.Contains(subtitle.Language))
{
// Attach to the list
AddSubtitleInformation(subtitle, subtitles);
// Remember
result.SubTitles.Languages.Add(subtitle.Language);
}
else
{
// At least one is excluded
result.SubTitles.LanguageMode = LanguageModes.Selection;
}
}
// Clear flag if no audio is used
if (LanguageModes.All == result.SubTitles.LanguageMode)
{
if (result.SubTitles.Languages.Count < 1)
{
result.SubTitles.LanguageMode = LanguageModes.Selection;
}
}
// Process all subtitles
foreach (var current in subtitles)
{
AddConsumer(current.Key, StreamTypes.SubTitle, m_TransportStream.AddSubtitles(current.Value.ToArray()));
}
// See if program guide is requested
bool epg = StreamSelection.ProgramGuide;
// May want to disable
if (epg)
{
if ((Hardware.Profile != null) && Hardware.Profile.DisableProgramGuide)
{
epg = false;
}
else if (Profile != null)
{
if (Profile.GetFilter(Source).DisableProgramGuide)
{
epg = false;
}
}
}
// EPG
if (epg)
{
// Activate dispatch
m_TransportStream.SetEPGMapping(Source.Network, Source.TransportStream, Source.Service);
// Start it
Hardware.AddProgramGuideConsumer(DispatchEPG);
// Remember
result.ProgramGuide = true;
}
// Counter
int started = 0;
try
{
// Start all
foreach (var consumer in m_Consumers)
{
try
{
// Forward
Hardware.SetConsumerState(consumer, true);
// Count it
++started;
}
catch (OutOfConsumersException)
{
// Translate
throw new OutOfConsumersException(m_Consumers.Count, started)
{
RequestedSelection = result
};
}
}
}
catch
{
// Detach EPG
Hardware.RemoveProgramGuideConsumer(DispatchEPG);
// Cleanup on all errors
foreach (var consumer in m_Consumers)
{
try
{
// Remove
Hardware.SetConsumerState(consumer, null);
}
catch
{
// Ignore any error
}
}
// Forward
throw;
}
// Remember path
if (filePath != null)
{
m_AllFiles.Add(new FileStreamInformation {
FilePath = filePath, VideoType = m_OriginalSettings.VideoType
});
}
// Remember the time
LastActivationTime = DateTime.UtcNow;
}
catch
{
// Simply forget
m_TransportStream.Dispose();
m_TransportStream = null;
// Forward
throw;
}
// Get the next free PID
NextStreamIdentifier = m_TransportStream.NextPID;
// Remember the streams we use
ActiveSelection = result;
// Attach to clients
var createNotify = OnCreatedStream;
// Report
if (createNotify != null)
{
createNotify(this);
}
}