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 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;
}
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 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 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;
}
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;
}
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;
}
}
