/// <summary>
/// Beendet den Graphen und gibt alle damit verbundenen Ressourcen frei.
/// </summary>
public void Destroy()
{
// Disable decryption callback
Interlocked.Exchange(ref m_PMTSink, null);
// Pipelines
DecryptionPipeline.Terminate();
SignalPipeline.Terminate();
TunePipeline.Terminate();
// External registration
using (m_ExternalRegistration)
m_ExternalRegistration = null;
// Extra filters
var additionalFilters = AdditionalFilters.ToArray();
// Reset
AdditionalFilters.Clear();
// Filter
foreach (var additionalFilter in additionalFilters)
{
if (additionalFilter != null)
{
additionalFilter.Dispose();
}
}
using (m_TIF)
m_TIF = null;
using (TransportStreamAnalyser)
TransportStreamAnalyser = null;
using (CaptureFilter)
CaptureFilter = null;
using (TunerFilter)
TunerFilter = null;
using (NetworkProvider)
NetworkProvider = null;
// The graph itself
if (m_Graph != null)
{
try
{
// Done with it
m_Graph.Stop();
}
catch (Exception e)
{
// For now we ignore all errors during shutdown
Trace.WriteLine(e.Message);
}
}
/// <summary>
/// Gibt alle internen Strukturen frei.
/// </summary>
private void DestroyGraph()
{
// Get rid of clock
DisposeClock();
// Try stop and delete all filters
if (null != m_Graph)
try
{
// Stop self
GraphAsFilter.Stop();
}
catch
{
}
// Filters first
foreach (var filter in m_Filters.Values)
filter.Dispose();
// Clear list
m_Filters.Clear();
// Forward
using (m_Register)
m_Register = null;
// Must cleanup COM references
BDAEnvironment.Release( ref m_Graph );
// Must cleanup file
using (m_LogFile)
m_LogFile = null;
// Clear helpers and reset flags
m_VideoWindowCreated = false;
m_VideoPID = 0;
m_AudioPID = 0;
// TS Filter
using (InjectorFilter)
InjectorFilter = null;
}
/// <summary>
/// Initialisiert die Filterstruktur.
/// </summary>
public void CreateGraph()
{
// Cleanup
DestroyGraph();
// Check log
var logFile = BDASettings.BDALogPath;
if (logFile != null)
m_LogFile = new FileStream( logFile.FullName, FileMode.Create, FileAccess.Write, FileShare.Read );
// Create new graph builder
m_Graph = (IGraphBuilder) Activator.CreateInstance( Type.GetTypeFromCLSID( BDAEnvironment.GraphBuilderClassIdentifier ) );
// Enable logging
if (m_LogFile != null)
m_Graph.SetLogFile( m_LogFile.SafeFileHandle );
// See if we should register the graph
m_Register = BDASettings.RegisterBDAGRaph( DirectShowObject, false );
// Create filter
InjectorFilter = new TSFilter( this );
try
{
// Check for statistics
InjectorFilter.EnableStatistics = BDASettings.GenerateTSStatistics;
// Register in graph
AddFilter( Filter_Injector, InjectorFilter );
}
catch
{
// Cleanup
InjectorFilter.Dispose();
// Forward
throw;
}
}
/// <summary>
/// Erzeugt einen Graphen und startet ihn.
/// </summary>
/// <param name="location">Der Ursprung, über den die Quellgruppe empfangen wird.</param>
/// <param name="group">Die gewünschte Quellgruppe.</param>
/// <exception cref="ArgumentException">Es wurden nicht alle Parameter gesetzt.</exception>
public void Create(GroupLocation location, SourceGroup group)
{
// Get rid of it
Destroy();
// Create new graph builder
var graph = Activator.CreateInstance(Type.GetTypeFromCLSID(BDAEnvironment.GraphBuilderClassIdentifier));
try
{
// Convert interface
m_Graph = (IMediaFilter)graph;
}
catch
{
// Cleanup
BDAEnvironment.Release(ref graph);
// Forward
throw;
}
// See if we should register the graph
m_ExternalRegistration = BDASettings.RegisterBDAGRaph(m_Graph, false);
// Attach to alternate interface
var builder = (IGraphBuilder)m_Graph;
// Check log
var logFile = BDASettings.BDALogPath;
if (logFile != null)
{
// Open path
m_LogFile = new FileStream(logFile.FullName, FileMode.Create, FileAccess.Write, FileShare.Read);
// Enable logging on graph builder
builder.SetLogFile(m_LogFile.SafeFileHandle);
}
// Start with network provider
NetworkProvider = AddFilter("Network Provider", BDAEnvironment.GetNetworkProviderMoniker(DVBType));
// Initialize provider
Tune(location, group);
// Always create the tuner
if (TunerInformation != null)
{
TunerFilter = AddFilter("Tuner", TunerInformation);
}
else
{
throw new ArgumentException(Properties.Resources.Exception_MissingTuner, "Tuner");
}
// Optionally create capture
if (CaptureInformation != null)
{
CaptureFilter = AddFilter("Capture", CaptureInformation);
}
// Add additional filter
foreach (var additionalFilter in AdditionalFilterInformations)
{
if (additionalFilter == null)
{
throw new ArgumentNullException("AdditionalFilters");
}
else
{
AdditionalFilters.Add(AddFilter(additionalFilter.DisplayName, additionalFilter));
}
}
// Connect network provider to streaming instance
Connect(NetworkProvider, CaptureFilter ?? TunerFilter);
// Initialize provider
Tune(location, group);
// Create the primary filter and add it
AddFilter("TS", TransportStreamAnalyser = new InputFilter());
// Connect device output for analysis
Connect(CaptureFilter ?? TunerFilter, TransportStreamAnalyser);
// Create the demultiplexer - needed to keep the infrastructure alive
using (var demux = AddFilter("TIF", BDAEnvironment.MicrosoftDemultiplexerMoniker))
{
// Connect to the dedicated pin of our analyser
TransportStreamAnalyser.DataManager.TIFConnector.Connect(demux, BDAEnvironment.TransportStreamMediaType1);
// Pins to remove
var remove = new List <string>();
// Prepare the demultiplexer pins
demux.InspectAllPins(pin =>
{
// See if this is the SI pin
bool isSectionPin = false;
pin.InspectAllMediaTypes(type =>
{
// Check major
if (!type.MajorType.Equals(BDAEnvironment.DataFormatTypeSections))
{
return(true);
}
// Check minor
isSectionPin = type.SubType.Equals(BDAEnvironment.DataFormatSubtypeSI);
// Report
return(!isSectionPin);
});
// Check the mode
if (isSectionPin)
{
// Connect
using (var comPin = ComIdentity.Create(pin))
builder.Render(comPin.Interface);
// Load connection data
IntPtr tifIn = IntPtr.Zero;
if (pin.ConnectedTo(ref tifIn) < 0)
{
throw new InvalidOperationException(Properties.Resources.Exception_TIF);
}
// Reconstruct
var tifPin = Marshal.GetObjectForIUnknown(tifIn);
try
{
// Request pin context
var info = new PinInfo();
((IPin)tifPin).QueryPinInfo(ref info);
// Request from pin
m_TIF = info.GetAndDisposeFilter();
}
finally
{
// Cleanup
BDAEnvironment.Release(ref tifPin);
}
}
else if (pin.QueryDirection() == PinDirection.Output)
{
// Prepare to kill
remove.Add(pin.QueryId());
}
});
// Prepare to remove all unconnected pins
if (remove.Count > 0)
{
using (var demuxInstance = demux.MarshalToManaged())
{
// Change type
var mpeg2 = (IMpeg2Demultiplexer)demuxInstance.Object;
// Remove all
foreach (var id in remove)
{
mpeg2.DeleteOutputPin(id);
}
}
}
}
// Install the PMT watchdog
TransportStreamAnalyser.DataManager.TSParser.PMTFound += ProcessPMT;
}
/// <summary>
/// Beendet den Graphen und gibt alle damit verbundenen Ressourcen frei.
/// </summary>
public void Destroy()
{
// Disable decryption callback
Interlocked.Exchange( ref m_PMTSink, null );
// Pipelines
DecryptionPipeline.Terminate();
SignalPipeline.Terminate();
TunePipeline.Terminate();
// External registration
using (m_ExternalRegistration)
m_ExternalRegistration = null;
// Extra filters
var additionalFilters = AdditionalFilters.ToArray();
// Reset
AdditionalFilters.Clear();
// Filter
foreach (var additionalFilter in additionalFilters)
if (additionalFilter != null)
additionalFilter.Dispose();
using (m_TIF)
m_TIF = null;
using (TransportStreamAnalyser)
TransportStreamAnalyser = null;
using (CaptureFilter)
CaptureFilter = null;
using (TunerFilter)
TunerFilter = null;
using (NetworkProvider)
NetworkProvider = null;
// The graph itself
if (m_Graph != null)
try
{
// Done with it
m_Graph.Stop();
}
catch (Exception e)
{
// For now we ignore all errors during shutdown
Trace.WriteLine( e.Message );
}
finally
{
// Get rid of it
BDAEnvironment.Release( ref m_Graph );
}
// Log file
using (var logFile = m_LogFile)
{
// Forget
m_LogFile = null;
// Make sure that we have written it all out
if (logFile != null)
logFile.Flush();
}
}
/// <summary>
/// Erzeugt einen Graphen und startet ihn.
/// </summary>
/// <param name="location">Der Ursprung, über den die Quellgruppe empfangen wird.</param>
/// <param name="group">Die gewünschte Quellgruppe.</param>
/// <exception cref="ArgumentException">Es wurden nicht alle Parameter gesetzt.</exception>
public void Create( GroupLocation location, SourceGroup group )
{
// Get rid of it
Destroy();
// Create new graph builder
var graph = Activator.CreateInstance( Type.GetTypeFromCLSID( BDAEnvironment.GraphBuilderClassIdentifier ) );
try
{
// Convert interface
m_Graph = (IMediaFilter) graph;
}
catch
{
// Cleanup
BDAEnvironment.Release( ref graph );
// Forward
throw;
}
// See if we should register the graph
m_ExternalRegistration = BDASettings.RegisterBDAGRaph( m_Graph, false );
// Attach to alternate interface
var builder = (IGraphBuilder) m_Graph;
// Check log
var logFile = BDASettings.BDALogPath;
if (logFile != null)
{
// Open path
m_LogFile = new FileStream( logFile.FullName, FileMode.Create, FileAccess.Write, FileShare.Read );
// Enable logging on graph builder
builder.SetLogFile( m_LogFile.SafeFileHandle );
}
// Start with network provider
NetworkProvider = AddFilter( "Network Provider", BDAEnvironment.GetNetworkProviderMoniker( DVBType ) );
// Initialize provider
Tune( location, group );
// Always create the tuner
if (TunerInformation != null)
TunerFilter = AddFilter( "Tuner", TunerInformation );
else
throw new ArgumentException( Properties.Resources.Exception_MissingTuner, "Tuner" );
// Optionally create capture
if (CaptureInformation != null)
CaptureFilter = AddFilter( "Capture", CaptureInformation );
// Add additional filter
foreach (var additionalFilter in AdditionalFilterInformations)
if (additionalFilter == null)
throw new ArgumentNullException( "AdditionalFilters" );
else
AdditionalFilters.Add( AddFilter( additionalFilter.DisplayName, additionalFilter ) );
// Connect network provider to streaming instance
Connect( NetworkProvider, CaptureFilter ?? TunerFilter );
// Initialize provider
Tune( location, group );
// Create the primary filter and add it
AddFilter( "TS", TransportStreamAnalyser = new InputFilter() );
// Connect device output for analysis
Connect( CaptureFilter ?? TunerFilter, TransportStreamAnalyser );
// Create the demultiplexer - needed to keep the infrastructure alive
using (var demux = AddFilter( "TIF", BDAEnvironment.MicrosoftDemultiplexerMoniker ))
{
// Connect to the dedicated pin of our analyser
TransportStreamAnalyser.DataManager.TIFConnector.Connect( demux, BDAEnvironment.TransportStreamMediaType1 );
// Pins to remove
var remove = new List<string>();
// Prepare the demultiplexer pins
demux.InspectAllPins( pin =>
{
// See if this is the SI pin
bool isSectionPin = false;
pin.InspectAllMediaTypes( type =>
{
// Check major
if (!type.MajorType.Equals( BDAEnvironment.DataFormatTypeSections ))
return true;
// Check minor
isSectionPin = type.SubType.Equals( BDAEnvironment.DataFormatSubtypeSI );
// Report
return !isSectionPin;
} );
// Check the mode
if (isSectionPin)
{
// Connect
using (var comPin = ComIdentity.Create( pin ))
builder.Render( comPin.Interface );
// Load connection data
IntPtr tifIn = IntPtr.Zero;
if (pin.ConnectedTo( ref tifIn ) < 0)
throw new InvalidOperationException( Properties.Resources.Exception_TIF );
// Reconstruct
var tifPin = Marshal.GetObjectForIUnknown( tifIn );
try
{
// Request pin context
var info = new PinInfo();
((IPin) tifPin).QueryPinInfo( ref info );
// Request from pin
m_TIF = info.GetAndDisposeFilter();
}
finally
{
// Cleanup
BDAEnvironment.Release( ref tifPin );
}
}
else if (pin.QueryDirection() == PinDirection.Output)
{
// Prepare to kill
remove.Add( pin.QueryId() );
}
} );
// Prepare to remove all unconnected pins
if (remove.Count > 0)
using (var demuxInstance = demux.MarshalToManaged())
{
// Change type
var mpeg2 = (IMpeg2Demultiplexer) demuxInstance.Object;
// Remove all
foreach (var id in remove)
mpeg2.DeleteOutputPin( id );
}
}
// Install the PMT watchdog
TransportStreamAnalyser.DataManager.TSParser.PMTFound += ProcessPMT;
}
