protected virtual void DisposeRenderer(bool disposing)
{
if (disposing)
{
if (_cleanup != null)
{
(_cleanup).Dispose();
_cleanup = null;
}
if (_timeline != null)
{
_timeline.Dispose();
_timeline = null;
}
}
if (_renderEngine != null)
{
Marshal.ReleaseComObject(_renderEngine);
_renderEngine = null;
}
if (_mediaControl != null)
{
Marshal.ReleaseComObject(_mediaControl);
_mediaControl = null;
}
if (Graph != null)
{
Marshal.ReleaseComObject(Graph);
_graph = null;
}
}
/// <summary>Runs the conversion synchronously.</summary>
/// <returns>The result of the conversion.</returns>
public object Convert()
{
_cancellationPending = false;
try
{
object result;
using (_dc = new DisposalCleanup())
{
// Do the actual work
result = DoWork();
}
OnConversionComplete(null, result);
return(result);
}
catch (DirectShowException exc)
{
OnConversionComplete(exc, null);
throw;
}
catch (Exception exc)
{
exc = new DirectShowException(exc);
OnConversionComplete(exc, null);
throw exc;
}
}
public static IBaseFilter RenderAsfWriterWithProfile(DisposalCleanup dc, IGraphBuilder graph, string profileData,
string outputFile)
{
int hr = 0;
IBaseFilter asfWriterFilter = (IBaseFilter) new WMAsfWriter();
dc.Add(asfWriterFilter);
hr = graph.AddFilter(asfWriterFilter, "ASF Writer");
DsError.ThrowExceptionForHR(hr);
// Create an appropriate IWMProfile from the data
IWMProfileManager profileManager = ProfileManager.CreateInstance();
dc.Add(profileManager);
IntPtr wmProfile = profileManager.LoadProfileByData(profileData);
dc.Add(wmProfile);
// Set the profile on the writer
IConfigAsfWriter2 configWriter = (IConfigAsfWriter2)asfWriterFilter;
configWriter.ConfigureFilterUsingProfile(wmProfile);
hr = ((IFileSinkFilter)asfWriterFilter).SetFileName(outputFile, null);
DsError.ThrowExceptionForHR(hr);
return(asfWriterFilter);
}
public static IBaseFilter RenderFileDestination(DisposalCleanup dc, IGraphBuilder graph, string outputFile)
{
if (dc == null)
{
throw new ArgumentNullException("dc");
}
if (graph == null)
{
throw new ArgumentNullException("graph");
}
if (string.IsNullOrEmpty(outputFile))
{
throw new ArgumentNullException("outputFile");
}
int hr = 0;
var fileFilter = (IBaseFilter) new FileWriter();
hr = ((IFileSinkFilter)fileFilter).SetFileName(outputFile, null);
DsError.ThrowExceptionForHR(hr);
hr = graph.AddFilter(fileFilter, Resources.DefaultFileDestinationName);
DsError.ThrowExceptionForHR(hr);
dc.Add(fileFilter);
return(fileFilter);
}
public void Dispose()
{
if (_dc != null)
{
((IDisposable)_dc).Dispose();
_dc = null;
}
if (_timeline != null)
{
_timeline.Dispose();
_timeline = null;
}
if (_renderEngine != null)
{
Marshal.ReleaseComObject(_renderEngine);
_renderEngine = null;
}
if (_mediaControl != null)
{
Marshal.ReleaseComObject(_mediaControl);
_mediaControl = null;
}
if (_graph != null)
{
Marshal.ReleaseComObject(_graph);
_graph = null;
}
}
public static IBaseFilter RenderWavDest(DisposalCleanup dc, IGraphBuilder graph)
{
IBaseFilter wavDest = FilterGraphTools.AddFilterFromClsid(graph, WavDestFilterId, "Wav DEST");
dc.Add(wavDest);
return(wavDest);
}
public static IBaseFilter RenderNull(DisposalCleanup dc, IGraphBuilder graph)
{
IBaseFilter filter = (IBaseFilter) new NullRenderer();
dc.Add(filter);
graph.AddFilter(filter, "Null Renderer");
return(filter);
}
/// <summary>Connects together to graph filters.</summary>
/// <param name="graph">The graph on which the filters exist.</param>
/// <param name="source">The source filter.</param>
/// <param name="outPinName">The name of the output pin on the source filter.</param>
/// <param name="destination">The destination filter.</param>
/// <param name="inPinName">The name of the input pin on the destination filter.</param>
protected void Connect(IGraphBuilder graph, IBaseFilter source, string outPinName,
IBaseFilter destination, string inPinName)
{
IPin outPin = source.FindPin(outPinName);
DisposalCleanup.Add(outPin);
IPin inPin = destination.FindPin(inPinName);
DisposalCleanup.Add(inPin);
graph.Connect(outPin, inPin);
}
public static IBaseFilter RenderFileDestination(DisposalCleanup dc, IGraphBuilder graph, string outputFile)
{
int hr = 0;
IBaseFilter fileFilter = (IBaseFilter) new FileWriter();
hr = ((IFileSinkFilter)fileFilter).SetFileName(outputFile, null);
DsError.ThrowExceptionForHR(hr);
hr = graph.AddFilter(fileFilter, "Output File");
DsError.ThrowExceptionForHR(hr);
dc.Add(fileFilter);
return(fileFilter);
}
public static IBaseFilter RenderAsfWriterWithProfile(DisposalCleanup dc, IGraphBuilder graph, string profileData,
string outputFile)
{
if (dc == null)
{
throw new ArgumentNullException("dc");
}
if (graph == null)
{
throw new ArgumentNullException("graph");
}
if (string.IsNullOrEmpty(profileData))
{
throw new ArgumentNullException("profileData");
}
if (string.IsNullOrEmpty(outputFile))
{
throw new ArgumentNullException("outputFile");
}
int hr = 0;
var asfWriterFilter = (IBaseFilter) new WMAsfWriter();
dc.Add(asfWriterFilter);
hr = graph.AddFilter(asfWriterFilter, Resources.DefaultAsfWriterName);
DsError.ThrowExceptionForHR(hr);
// Create an appropriate IWMProfile from the data
IWMProfileManager profileManager = ProfileManager.CreateInstance();
dc.Add(profileManager);
IntPtr wmProfile = profileManager.LoadProfileByData(profileData);
dc.Add(wmProfile);
// Set the profile on the writer
var configWriter = (IConfigAsfWriter2)asfWriterFilter;
configWriter.ConfigureFilterUsingProfile(wmProfile);
hr = ((IFileSinkFilter)asfWriterFilter).SetFileName(outputFile, null);
DsError.ThrowExceptionForHR(hr);
return(asfWriterFilter);
}
/// <summary>Do the conversion from DVR-MS to WAV.</summary>
/// <returns>Null; ignored.</returns>
protected override object DoWork()
{
// Get the filter graph
object filterGraph = ClassId.CoCreateInstance(ClassId.FilterGraph);
DisposalCleanup.Add(filterGraph);
IGraphBuilder graph = (IGraphBuilder)filterGraph;
// Add the ASF writer and set the output name
IBaseFilter asfWriterFilter = (IBaseFilter)ClassId.CoCreateInstance(ClassId.WMAsfWriter);
DisposalCleanup.Add(asfWriterFilter);
graph.AddFilter(asfWriterFilter, null);
IFileSinkFilter sinkFilter = (IFileSinkFilter)asfWriterFilter;
sinkFilter.SetFileName(OutputFilePath, null);
// Set the profile to be used for conversion
if (_profilePath != null && _profilePath.Trim().Length > 0)
{
// Load the profile XML contents
string profileData;
using (StreamReader reader = new StreamReader(File.OpenRead(_profilePath)))
{
profileData = reader.ReadToEnd();
}
// Create an appropriate IWMProfile from the data
IWMProfileManager profileManager = ProfileManager.CreateInstance();
DisposalCleanup.Add(profileManager);
IntPtr wmProfile = profileManager.LoadProfileByData(profileData);
DisposalCleanup.Add(wmProfile);
// Set the profile on the writer
IConfigAsfWriter2 configWriter = (IConfigAsfWriter2)asfWriterFilter;
configWriter.ConfigureFilterUsingProfile(wmProfile);
}
// Add the source filter; should connect automatically through the appropriate transform filters
graph.RenderFile(InputFilePath, null);
// Run the graph to completion
RunGraph(graph, asfWriterFilter);
return(null);
}
/// <summary>Do the conversion from DVR-MS to WAV.</summary>
/// <returns>Null; ignored.</returns>
protected override object DoWork()
{
// Get the filter graph
object filterGraph = ClassId.CoCreateInstance(ClassId.FilterGraph);
DisposalCleanup.Add(filterGraph);
IGraphBuilder graph = (IGraphBuilder)filterGraph;
// Add the source filter for the dvr-ms file
IBaseFilter DvrmsSourceFilter = graph.AddSourceFilter(InputFilePath, null);
DisposalCleanup.Add(DvrmsSourceFilter);
// Add the file writer to the graph
IBaseFilter wavFilter = (IBaseFilter)ClassId.CoCreateInstance(ClassId.FileWriter);
DisposalCleanup.Add(wavFilter);
graph.AddFilter(wavFilter, null);
IFileSinkFilter sinkFilter = (IFileSinkFilter)wavFilter;
sinkFilter.SetFileName(OutputFilePath, null);
// Add the Wav Dest filter to the graph
IBaseFilter wavDest = (IBaseFilter)ClassId.CoCreateInstance(ClassId.WavDest);
DisposalCleanup.Add(wavDest);
graph.AddFilter(wavDest, null);
// Add the decrypter node to the graph
IBaseFilter decrypter = (IBaseFilter)ClassId.CoCreateInstance(ClassId.DecryptTag);
DisposalCleanup.Add(decrypter);
graph.AddFilter(decrypter, null);
// Connect the dvr-ms source to the decrypter, the decrypter to the wav dest,
// and the wav dest to the file writer
Connect(graph, DvrmsSourceFilter, "DVR Out - 1", decrypter, "In(Enc/Tag)");
Connect(graph, decrypter, "Out", wavDest, "In");
Connect(graph, wavDest, "Out", wavFilter, "in");
// Run the graph to convert the audio to wav
RunGraph(graph);
return(null);
}
public static IBaseFilter RenderWavDestination(DisposalCleanup dc, IGraphBuilder graph)
{
if (dc == null)
{
throw new ArgumentNullException("dc");
}
if (graph == null)
{
throw new ArgumentNullException("graph");
}
IBaseFilter wavDest =
FilterGraphTools.AddFilterFromClsid(graph, WavDestinationFilterId, Resources.DefaultWavDestinationName);
dc.Add(wavDest);
return(wavDest);
}
public static IBaseFilter RenderNull(DisposalCleanup dc, IGraphBuilder graph)
{
if (dc == null)
{
throw new ArgumentNullException("dc");
}
if (graph == null)
{
throw new ArgumentNullException("graph");
}
var filter = (IBaseFilter) new NullRenderer();
dc.Add(filter);
graph.AddFilter(filter, Resources.DefaultNullRendererName);
return(filter);
}
/// <summary>Saves a graph to a GRF file.</summary>
/// <param name="graph">The graph to be saved.</param>
/// <param name="path">Path to the target GRF file.</param>
private static void SaveGraphToFile(IGraphBuilder graph, string path)
{
using (DisposalCleanup dc = new DisposalCleanup())
{
// Get the graph's persist stream interface
IPersistStream ps = (IPersistStream)graph;
// Create the file to which the graph should be stored
IStorage graphStorage = StgCreateDocfile(path, (int)(STGM_CREATE | STGM_TRANSACTED | STGM_READWRITE | STGM_SHARE_EXCLUSIVE), 0);
dc.Add(graphStorage);
// Create the movie graph stream
IStream stream = graphStorage.CreateStream("ActiveMovieGraph", (int)(STGM_WRITE | STGM_CREATE | STGM_SHARE_EXCLUSIVE), 0, 0);
dc.Add(stream);
// Save out the graph and commit it
ps.Save(stream, true);
graphStorage.Commit(0);
}
}
public static IBaseFilter CreateAudioCompressor(DisposalCleanup dc, IGraphBuilder graph, IPin outPin,
AudioFormat settings)
{
if (dc == null)
{
throw new ArgumentNullException("dc");
}
if (graph == null)
{
throw new ArgumentNullException("graph");
}
if (outPin == null)
{
throw new ArgumentNullException("outPin");
}
if (settings == null)
{
throw new ArgumentNullException("settings");
}
int hr = 0;
using (AudioCompressor compressor = AudioCompressorFactory.Create(settings))
{
IBaseFilter compressorFilter = compressor.Filter;
dc.Add(compressorFilter);
hr = graph.AddFilter(compressorFilter, settings.AudioCompressor);
DsError.ThrowExceptionForHR(hr);
FilterGraphTools.ConnectFilters(graph, outPin, compressorFilter, true);
// set the media type on the output pin of the compressor
if (compressor.MediaType != null)
{
FilterGraphTools.SetFilterFormat(compressor.MediaType, compressorFilter);
}
return(compressorFilter);
}
}
public static IBaseFilter RenderAviDestination(DisposalCleanup dc, ICaptureGraphBuilder2 graphBuilder,
string outputFile)
{
if (dc == null)
{
throw new ArgumentNullException("dc");
}
if (graphBuilder == null)
{
throw new ArgumentNullException("graphBuilder");
}
if (string.IsNullOrEmpty(outputFile))
{
throw new ArgumentNullException("outputFile");
}
int hr = 0;
// Create the file writer
IBaseFilter multiplexer;
IFileSinkFilter filter = null;
try
{
hr = graphBuilder.SetOutputFileName(MediaSubType.Avi, outputFile, out multiplexer, out filter);
dc.Add(multiplexer);
DESError.ThrowExceptionForHR(hr);
}
finally
{
if (filter != null)
{
Marshal.ReleaseComObject(filter);
}
}
return(multiplexer);
}
public static IBaseFilter RenderAviDest(DisposalCleanup dc, ICaptureGraphBuilder2 icgb, string outputFile)
{
int hr = 0;
// Create the file writer
IBaseFilter pMux;
IFileSinkFilter pFilter = null;
try
{
hr = icgb.SetOutputFileName(MediaSubType.Avi, outputFile, out pMux, out pFilter);
dc.Add(pMux);
DESError.ThrowExceptionForHR(hr);
}
finally
{
if (pFilter != null)
{
Marshal.ReleaseComObject(pFilter);
}
}
return(pMux);
}
