private void Configure()
{
int hr;
IDMOWrapperFilter iDMO = (IDMOWrapperFilter) new DMOWrapperFilter();
Guid g = new Guid("03be3ac4-84b7-4e0e-a78d-d3524e60395a");
hr = iDMO.Init(g, Guid.Empty);
m_voo = (IDMOVideoOutputOptimizations)iDMO;
}
private void BuildGraph(string sFileName, bool bLeft)
{
int hr;
IBaseFilter ibfFile = null;
IBaseFilter ibfFilter = null;
IBaseFilter ibfRender = null;
IDMOWrapperFilter dmoWrapperFilter = null;
ICaptureGraphBuilder2 icgb = (ICaptureGraphBuilder2) new CaptureGraphBuilder2();
graphBuilder = (IFilterGraph2) new FilterGraph();
#if DEBUG
m_rot = new DsROTEntry(graphBuilder);
#endif
hr = icgb.SetFiltergraph(graphBuilder);
DsError.ThrowExceptionForHR(hr);
// Add a DMO Wrapper Filter
ibfFilter = (IBaseFilter) new DMOWrapperFilter();
dmoWrapperFilter = (IDMOWrapperFilter)ibfFilter;
// Since I know the guid of the DMO I am looking for, I can do this.
hr = dmoWrapperFilter.Init(new Guid("{EAB6CBA9-78DD-4ae4-9A69-1CE1C55369F6}"), DMOCategory.AudioEffect);
DMOError.ThrowExceptionForHR(hr);
// Add it to the Graph
hr = graphBuilder.AddFilter(ibfFilter, "DMO Filter");
DsError.ThrowExceptionForHR(hr);
ibfRender = (IBaseFilter) new AudioRender();
hr = graphBuilder.AddFilter(ibfRender, "Renderer");
DsError.ThrowExceptionForHR(hr);
ibfFile = (IBaseFilter) new AsyncReader();
hr = graphBuilder.AddFilter(ibfFile, "Reader");
DsError.ThrowExceptionForHR(hr);
IFileSourceFilter ifileSink = (IFileSourceFilter)ibfFile;
hr = ifileSink.Load(sFileName, null);
DsError.ThrowExceptionForHR(hr);
hr = icgb.RenderStream(null, null, ibfFile, null, ibfFilter);
DsError.ThrowExceptionForHR(hr);
IPin iPin = DsFindPin.ByDirection(ibfFilter, PinDirection.Output, bLeft ? 0 : 1);
hr = icgb.RenderStream(null, null, iPin, null, ibfRender);
DsError.ThrowExceptionForHR(hr);
Marshal.ReleaseComObject(ibfRender);
Marshal.ReleaseComObject(dmoWrapperFilter);
Marshal.ReleaseComObject(iPin);
}
/// <summary>
/// Create and add a filter from a DSFilterTreeViewNode
/// </summary>
/// <param name="tn"></param>
public IBaseFilter AddFilter(DSFilterTreeViewNode tn)
{
int hr = 0;
IBaseFilter filter = null;
if (tn.DSFilterType == FilterType.DMO)
{
// create a DMO wrapper and init it with the ClassGuid
filter = (IBaseFilter) new DMOWrapperFilter();
IDMOWrapperFilter wrapper = (IDMOWrapperFilter)filter;
hr = wrapper.Init(tn.ClassGuid, tn.DMOCategory);
if (hr != 0)
{
MessageBox.Show(DsError.GetErrorText(hr), "Error wrapping DMO");
Marshal.ReleaseComObject(filter);
return(null);
}
hr = _Graph.AddFilter(filter, tn.Text);
if (hr != 0)
{
MessageBox.Show(DsError.GetErrorText(hr), "Error Adding DMO");
Marshal.ReleaseComObject(filter);
return(null);
}
SyncGraphs(filter);
return(filter);
}
else
{
// try adding it as a source filter first (this usually works for non-source filters anyway)
hr = (_Graph as IFilterGraph2).AddSourceFilterForMoniker(tn.Moniker, null, tn.Text, out filter);
// that didn't work. Try AddFilterByDevicePath
if (filter == null)
{
DirectShowLib.Utils.FilterGraphTools.AddFilterByDevicePath(_Graph as IGraphBuilder, tn.DevicePath, tn.Name);
}
// force the DaggerGraph to reflect changes in the DS graph
List <DSFilterNode> addedNodes = SyncGraphs(filter);
// get the DSFilterNode that was added and give it the information
if (addedNodes.Count == 1)
{
addedNodes[0]._devicePath = tn.DevicePath;
addedNodes[0]._moniker = tn.Moniker;
}
return(filter);
}
}
private void Configure()
{
int hr;
DMOWrapperFilter dmoFilter = new DMOWrapperFilter();
IDMOWrapperFilter dmoWrapperFilter = (IDMOWrapperFilter)dmoFilter;
// Chorus - {efe6629c-81f7-4281-bd91-c9d604a95af6}
// DmoFlip - {7EF28FD7-E88F-45bb-9CDD-8A62956F2D75}
//hr = dmoWrapperFilter.Init(new Guid("{7EF28FD7-E88F-45bb-9CDD-8A62956F2D75}"), DMOCategory.AudioEffect);
hr = dmoWrapperFilter.Init(new Guid("{efe6629c-81f7-4281-bd91-c9d604a95af6}"), DMOCategory.AudioEffect);
DMOError.ThrowExceptionForHR(hr);
m_impi = dmoWrapperFilter as IMediaParamInfo;
}
private void junk()
{
int hr;
IEnumDMO idmo;
Guid [] g = new Guid[1];
string [] sn = new string[1];
int iCount = 0;
hr = DMOUtils.DMOEnum(Guid.Empty, DMOEnumerator.None, 0, null, 0, null, out idmo);
DMOError.ThrowExceptionForHR(hr);
do
{
DMOWrapperFilter dmoFilter = new DMOWrapperFilter();
IDMOWrapperFilter dmoWrapperFilter = (IDMOWrapperFilter)dmoFilter;
hr = idmo.Next(1, g, sn, IntPtr.Zero);
DMOError.ThrowExceptionForHR(hr);
if (hr > 0)
{
break;
}
hr = dmoWrapperFilter.Init(g[0], Guid.Empty);
if (hr >= 0)
{
m_impi = dmoWrapperFilter as IMediaParamInfo;
if (m_impi != null)
{
hr = m_impi.GetParamCount(out iCount);
}
else
{
iCount = 0;
}
if (iCount > 0)
{
Debug.WriteLine(string.Format("{0} {1} {2}", sn[0], iCount, g[0]));
}
}
} while (iCount >= 0);
}
public Nullable <Pair <Guid, Guid> > ReadDMOGuids()
{
IDMOWrapperFilter idmo = BaseFilter as IDMOWrapperFilter;
if (idmo == null)
{
return(null);
}
IPersistStream ips = BaseFilter as IPersistStream;
if (ips == null)
{
return(null);
}
IntPtr hg = Marshal.AllocHGlobal(10240);
try
{
IStream stream;
Graph.CheckHR(FilterGraphTools.CreateStreamOnHGlobal(hg, false, out stream), "CreateStreamOnHGlobal");
Graph.CheckHR(ips.Save(stream, false), "IPersistStream::Save");
IntPtr ppos = Marshal.AllocHGlobal(8);
stream.Seek(0, 1, ppos);
long pos = Marshal.ReadInt64(ppos);
if (pos >= 32)
{
byte[] data1 = new byte[16];
byte[] data2 = new byte[16];
Marshal.Copy(hg, data1, 0, 16);
IntPtr hg16 = new IntPtr(hg.ToInt64() + 16);
Marshal.Copy(hg16, data2, 0, 16);
Guid g1 = new Guid(data1);
Guid g2 = new Guid(data2);
return(new Pair <Guid, Guid>(g1, g2));
}
}
finally
{
Marshal.FreeHGlobal(hg);
}
return(null);
}
///////////////////////////////////////////////////////////////////////////////
// Inherited methods //
///////////////////////////////////////////////////////////////////////////////
#region OVERRIDES
#endregion //OVERRIDES
///////////////////////////////////////////////////////////////////////////////
// Eventhandler //
///////////////////////////////////////////////////////////////////////////////
#region EVENTS
///////////////////////////////////////////////////////////////////////////////
// Eventhandler for UI, Menu, Buttons, Toolbars etc. //
///////////////////////////////////////////////////////////////////////////////
#region WINDOWSEVENTHANDLER
#endregion //WINDOWSEVENTHANDLER
///////////////////////////////////////////////////////////////////////////////
// Eventhandler for Custom Defined Events //
///////////////////////////////////////////////////////////////////////////////
#region CUSTOMEVENTHANDLER
#endregion //CUSTOMEVENTHANDLER
#endregion //EVENTS
///////////////////////////////////////////////////////////////////////////////
// Methods and Eventhandling for Background tasks //
///////////////////////////////////////////////////////////////////////////////
#region BACKGROUNDWORKER
#endregion //BACKGROUNDWORKER
///////////////////////////////////////////////////////////////////////////////
// Methods for doing main class job //
///////////////////////////////////////////////////////////////////////////////
#region PRIVATEMETHODS
/// <summary>
/// Create a new filter graph and add filters (devices, compressors,
/// misc), but leave the filters unconnected. Call renderGraph()
/// to connect the filters.
/// </summary>
/// <returns>True if successful created the graph.</returns>
protected bool createGraph()
{
int hr;
try
{
// Garbage collect, ensure that previous filters are released
GC.Collect();
// Get the graphbuilder object
this.graphBuilder = new FilterGraph() as IFilterGraph2;
// Get a ICaptureGraphBuilder2 to help build the graph
this.captureGraphBuilder = new CaptureGraphBuilder2() as ICaptureGraphBuilder2;
// Link the CaptureGraphBuilder to the filter graph
hr = this.captureGraphBuilder.SetFiltergraph(this.graphBuilder);
DsError.ThrowExceptionForHR(hr);
#if DEBUG
this.rotCookie = new DsROTEntry(this.graphBuilder);
#endif
// this.screenCaptureFilter = (IBaseFilter)new OgamaScreenCaptureFilter();
// Get the ogama screen capture device and add it to the filter graph
this.screenCaptureFilter = DirectShowUtils.CreateFilter(FilterCategory.VideoInputDevice, "OgamaCapture");
hr = this.graphBuilder.AddFilter(this.screenCaptureFilter, "OgamaCapture");
DsError.ThrowExceptionForHR(hr);
// Query the interface for the screen capture Filter
var ogamaFilter = this.screenCaptureFilter as IOgamaScreenCapture;
hr = ogamaFilter.set_Monitor(this.monitorIndex);
DsError.ThrowExceptionForHR(hr);
hr = ogamaFilter.set_Framerate(this.frameRate);
DsError.ThrowExceptionForHR(hr);
//// Get the IAMStreamConfig from the filter so we can configure it
//var videoStreamConfig = this.screenCaptureFilter as IAMStreamConfig;
var resolution = PresentationScreen.GetPresentationResolution();
//hr = videoStreamConfig.SetFormat(this.CreateVideoMediaType(24, resolution.Width, resolution.Height));
//DsError.ThrowExceptionForHR(hr);
this.smartTeeFilter = new SmartTee() as IBaseFilter;
hr = this.graphBuilder.AddFilter(this.smartTeeFilter, "Smart Tee");
DsError.ThrowExceptionForHR(hr);
if (SecondaryScreen.SystemHasSecondaryScreen())
{
// Add a DMO Wrapper Filter
this.dmoFilter = (IBaseFilter) new DMOWrapperFilter();
this.dmoWrapperFilter = (IDMOWrapperFilter)this.dmoFilter;
// But it is more useful to show how to scan for the DMO
var g = this.FindGuid("DmoOverlay", DMOCategory.VideoEffect);
hr = this.dmoWrapperFilter.Init(g, DMOCategory.VideoEffect);
DMOError.ThrowExceptionForHR(hr);
this.SetDMOParams(this.dmoFilter);
// Add it to the Graph
hr = this.graphBuilder.AddFilter(this.dmoFilter, "DMO Filter");
DsError.ThrowExceptionForHR(hr);
var dmo = (IMediaObject)this.dmoFilter;
hr = dmo.SetInputType(0, this.CreateVideoMediaType(24, resolution.Width, resolution.Height), DMOSetType.None);
DsError.ThrowExceptionForHR(hr);
hr = dmo.SetOutputType(0, this.CreateVideoMediaType(24, resolution.Width, resolution.Height), DMOSetType.None);
DsError.ThrowExceptionForHR(hr);
}
// Get the video compressor and add it to the filter graph
// Create the filter for the selected video compressor
this.videoCompressorFilter = DirectShowUtils.CreateFilter(
FilterCategory.VideoCompressorCategory,
this.videoCompressorName);
hr = this.graphBuilder.AddFilter(this.videoCompressorFilter, "Video Compressor");
DsError.ThrowExceptionForHR(hr);
// Render the file writer portion of graph (mux -> file)
hr = this.captureGraphBuilder.SetOutputFileName(
MediaSubType.Avi,
this.tempFilename,
out this.muxFilter,
out this.fileWriterFilter);
DsError.ThrowExceptionForHR(hr);
//// Disable overwrite
//// hr = this.fileWriterFilter.SetMode(AMFileSinkFlags.None);
//// DsError.ThrowExceptionForHR(hr);
hr = this.captureGraphBuilder.AllocCapFile(this.tempFilename, 10000000);
DsError.ThrowExceptionForHR(hr);
if (SecondaryScreen.SystemHasSecondaryScreen())
{
hr = this.captureGraphBuilder.RenderStream(null, null, this.screenCaptureFilter, null, this.smartTeeFilter);
DsError.ThrowExceptionForHR(hr);
hr = this.captureGraphBuilder.RenderStream(
null,
null,
this.smartTeeFilter,
this.videoCompressorFilter,
this.muxFilter);
DsError.ThrowExceptionForHR(hr);
hr = this.captureGraphBuilder.RenderStream(null, null, this.smartTeeFilter, null, this.dmoFilter);
DsError.ThrowExceptionForHR(hr);
hr = this.captureGraphBuilder.RenderStream(null, null, this.dmoFilter, null, null);
DsError.ThrowExceptionForHR(hr);
}
else
{
hr = this.captureGraphBuilder.RenderStream(
null,
null,
this.screenCaptureFilter,
this.videoCompressorFilter,
this.muxFilter);
DsError.ThrowExceptionForHR(hr);
}
// IMediaFilter filter = this.graphBuilder as IMediaFilter;
// IReferenceClock clock;
// filter.GetSyncSource(out clock);
hr = this.graphBuilder.SetDefaultSyncSource();
DsError.ThrowExceptionForHR(hr);
// Retreive the media control interface (for starting/stopping graph)
this.mediaControl = (IMediaControl)this.graphBuilder;
}
catch (Exception ex)
{
ExceptionMethods.HandleException(ex);
return(false);
}
return(true);
}
private void BuildGraph()
{
int hr = 0;
Guid wavesReverbDMO = new Guid("87fc0268-9a55-4360-95aa-004a1d9de26c");
IPin pinIn, pinOut;
graphBuilder = (IFilterGraph2) new FilterGraph();
// Add a source filter
hr = graphBuilder.AddSourceFilter(@"..\..\..\Resources\foo.avi", "foo.avi", out fileSource);
DsError.ThrowExceptionForHR(hr);
// Add an Avi Splitter
aviSplitter = (IBaseFilter) new AviSplitter();
hr = graphBuilder.AddFilter(aviSplitter, "Splitter");
DsError.ThrowExceptionForHR(hr);
// Add a DMO Wrapper Filter
dmoFilter = (IBaseFilter) new DMOWrapperFilter();
dmoWrapperFilter = (IDMOWrapperFilter)dmoFilter;
// IDMOWrapperFilter unique method is tested here
//
// Init this filter with WavesReverb DMO Object
//
hr = dmoWrapperFilter.Init(wavesReverbDMO, DMOCategory.AudioEffect);
DsError.ThrowExceptionForHR(hr);
// Add it to the Graph
hr = graphBuilder.AddFilter(dmoFilter, "DMO Filter");
DsError.ThrowExceptionForHR(hr);
// Add an audio renderer
directSoundDevice = (IBaseFilter) new DSoundRender();
hr = graphBuilder.AddFilter(directSoundDevice, "DirectSound Device");
DsError.ThrowExceptionForHR(hr);
// Connect Source filter with Avi Splitter
pinOut = DsFindPin.ByDirection(fileSource, PinDirection.Output, 0);
pinIn = DsFindPin.ByDirection(aviSplitter, PinDirection.Input, 0);
hr = graphBuilder.Connect(pinOut, pinIn);
DsError.ThrowExceptionForHR(hr);
Marshal.ReleaseComObject(pinOut);
Marshal.ReleaseComObject(pinIn);
// Connect Avi Splitter audio (2nd) pin with DMO Wrapper
// Should add an audio codec between the 2 filters
pinOut = DsFindPin.ByDirection(aviSplitter, PinDirection.Output, 1);
pinIn = DsFindPin.ByDirection(dmoFilter, PinDirection.Input, 0);
hr = graphBuilder.Connect(pinOut, pinIn);
DsError.ThrowExceptionForHR(hr);
Marshal.ReleaseComObject(pinOut);
Marshal.ReleaseComObject(pinIn);
// Connect DMO Wrapper with the audio renderer
pinOut = DsFindPin.ByDirection(dmoFilter, PinDirection.Output, 0);
pinIn = DsFindPin.ByDirection(directSoundDevice, PinDirection.Input, 0);
hr = graphBuilder.Connect(pinOut, pinIn);
DsError.ThrowExceptionForHR(hr);
Marshal.ReleaseComObject(pinOut);
Marshal.ReleaseComObject(pinIn);
// Run this graph (just for fun)
hr = (graphBuilder as IMediaControl).Run();
DsError.ThrowExceptionForHR(hr);
System.Threading.Thread.Sleep(4000);
}
///////////////////////////////////////////////////////////////////////////////
// Inherited methods //
///////////////////////////////////////////////////////////////////////////////
#region OVERRIDES
#endregion //OVERRIDES
///////////////////////////////////////////////////////////////////////////////
// Eventhandler //
///////////////////////////////////////////////////////////////////////////////
#region EVENTS
///////////////////////////////////////////////////////////////////////////////
// Eventhandler for UI, Menu, Buttons, Toolbars etc. //
///////////////////////////////////////////////////////////////////////////////
#region WINDOWSEVENTHANDLER
#endregion //WINDOWSEVENTHANDLER
///////////////////////////////////////////////////////////////////////////////
// Eventhandler for Custom Defined Events //
///////////////////////////////////////////////////////////////////////////////
#region CUSTOMEVENTHANDLER
#endregion //CUSTOMEVENTHANDLER
#endregion //EVENTS
///////////////////////////////////////////////////////////////////////////////
// Methods and Eventhandling for Background tasks //
///////////////////////////////////////////////////////////////////////////////
#region BACKGROUNDWORKER
#endregion //BACKGROUNDWORKER
///////////////////////////////////////////////////////////////////////////////
// Methods for doing main class job //
///////////////////////////////////////////////////////////////////////////////
#region PRIVATEMETHODS
/// <summary>
/// Build the filter graph
/// </summary>
/// <returns>True if successful, otherwise false.</returns>
private bool SetupGraph()
{
int hr;
// Get the graphbuilder object
this.filterGraph = new FilterGraph() as IFilterGraph2;
// Get a ICaptureGraphBuilder2 to help build the graph
ICaptureGraphBuilder2 captureGraph = (ICaptureGraphBuilder2) new CaptureGraphBuilder2();
try
{
// Link the ICaptureGraphBuilder2 to the IFilterGraph2
hr = captureGraph.SetFiltergraph(this.filterGraph);
DsError.ThrowExceptionForHR(hr);
#if DEBUG
// Allows you to view the graph with GraphEdit File/Connect
this.dsRot = new DsROTEntry(this.filterGraph);
#endif
// Our data source one
IBaseFilter bitmapSource = (IBaseFilter) new GenericSampleSourceFilter();
// Create a DMO Wrapper Filter
IBaseFilter dmoFilter = (IBaseFilter) new DMOWrapperFilter();
IDMOWrapperFilter dmoWrapperFilter = (IDMOWrapperFilter)dmoFilter;
Guid g = this.FindGuid("DmoMixer", DMOCategory.VideoEffect);
hr = dmoWrapperFilter.Init(g, DMOCategory.VideoEffect);
DMOError.ThrowExceptionForHR(hr);
try
{
// Get the pin from the filter so we can configure it
IPin ipin = DsFindPin.ByDirection(bitmapSource, PinDirection.Output, 0);
try
{
// Configure the pin using the provided BitmapInfo
this.ConfigurePusher((IGenericSampleConfig)ipin);
}
catch (Exception ex)
{
ExceptionMethods.HandleException(ex);
return(false);
}
finally
{
Marshal.ReleaseComObject(ipin);
}
// Add the bitmap source to the graph
hr = this.filterGraph.AddFilter(bitmapSource, "BitmapSourceFilter");
DsError.ThrowExceptionForHR(hr);
IBaseFilter webcamSource = null;
if (this.videoExportProperties.UserVideoProperties.IsStreamRendered)
{
hr = this.filterGraph.AddSourceFilter(
this.videoExportProperties.UserVideoTempFile,
"WebcamVideoSource",
out webcamSource);
DsError.ThrowExceptionForHR(hr);
}
// Add it to the Graph
hr = this.filterGraph.AddFilter(dmoFilter, "DMO Filter");
DsError.ThrowExceptionForHR(hr);
this.SetDMOParams(dmoFilter, this.videoExportProperties);
// Add the Video compressor filter to the graph
if (this.videoCompressor != null)
{
hr = this.filterGraph.AddFilter(this.videoCompressor, "video compressor filter");
DsError.ThrowExceptionForHR(hr);
}
// Create the file writer part of the graph.
// SetOutputFileName does this for us, and returns the mux and sink
IBaseFilter mux;
IFileSinkFilter sink;
hr = captureGraph.SetOutputFileName(MediaSubType.Avi, this.videoExportProperties.OutputVideoProperties.Filename, out mux, out sink);
DsError.ThrowExceptionForHR(hr);
// Connect the bitmap source to the dmo mixer filter
hr = captureGraph.RenderStream(
null,
null,
bitmapSource,
null,
dmoFilter);
DsError.ThrowExceptionForHR(hr);
// If there is a webcam source connect it to the second input of the dmo mixer
if (webcamSource != null)
{
hr = captureGraph.RenderStream(
null,
null,
webcamSource,
null,
dmoFilter);
DsError.ThrowExceptionForHR(hr);
}
// Create a smart tee filter to enable preview and capture pins
IBaseFilter smartTee = new SmartTee() as IBaseFilter;
// Add the filter to the graph
hr = this.filterGraph.AddFilter(smartTee, "Smart Tee");
DsError.ThrowExceptionForHR(hr);
// Connect the dmo mixer output to the smart tee
hr = captureGraph.RenderStream(
null,
null,
dmoFilter,
null,
smartTee);
DsError.ThrowExceptionForHR(hr);
// Render the smart tee capture pin to the capture part including
// compressor to the file muxer.
hr = captureGraph.RenderStream(
null,
null,
smartTee,
this.videoCompressor,
mux);
DsError.ThrowExceptionForHR(hr);
// Render the smart tee preview pin to the default video renderer
hr = captureGraph.RenderStream(
null,
null,
smartTee,
null,
null);
DsError.ThrowExceptionForHR(hr);
// Configure the Video Window
this.videoWindow = this.filterGraph as IVideoWindow;
this.ConfigureVideoWindow(this.videoWindow, this.previewWindow);
}
catch (Exception ex)
{
ExceptionMethods.HandleException(ex);
return(false);
}
finally
{
Marshal.ReleaseComObject(bitmapSource);
}
// Grab some other interfaces
this.mediaControl = this.filterGraph as IMediaControl;
}
catch (Exception ex)
{
ExceptionMethods.HandleException(ex);
return(false);
}
finally
{
Marshal.ReleaseComObject(captureGraph);
}
return(true);
}
/// <summary>
/// Connecte le File Splitter et le renderer vidéo en créant le décodeur vidéo.
/// </summary>
/// <param name="graph">Le graphe.</param>
/// <param name="filtersConfig">La configuration pour ce fichier.</param>
/// <param name="parserOutputVideoPin">Le pin de sortie vidéo</param>
/// <param name="videoRendererInputPin">Le pin d'entrée du Renderer.</param>
internal static void ConnectSplitterAndRendererWithDecoder(IGraphBuilder graph, ExtensionFiltersSource filtersConfig,
IPin parserOutputVideoPin, IPin videoRendererInputPin)
{
FilterSource videoFilterSource = filtersConfig.VideoDecoder;
switch (videoFilterSource.SourceType)
{
case FilterSourceTypeEnum.Auto:
int hr = graph.Connect(parserOutputVideoPin, videoRendererInputPin);
DsError.ThrowExceptionForHR(hr);
break;
case FilterSourceTypeEnum.External:
if (new Guid(videoFilterSource.ExternalCLSID) == new Guid(CLSID_VIDEO_DECODER_DMO))
{
// The DMO filter is handled differently
DMOWrapperFilter dmoFilter = new DMOWrapperFilter();
IDMOWrapperFilter wrapper = (IDMOWrapperFilter)dmoFilter;
hr = wrapper.Init(new Guid(CLSID_VIDEO_DECODER_DMO), DirectShowLib.DMO.DMOCategory.VideoDecoder);
DsError.ThrowExceptionForHR(hr);
if (dmoFilter is IBaseFilter decoderFilter)
{
hr = graph.AddFilter(decoderFilter, "WMVideo Decoder DMO");
DsError.ThrowExceptionForHR(hr);
IPin wmvDecoderInputPin = DsFindPin.ByDirection(decoderFilter, PinDirection.Input, 0);
hr = graph.ConnectDirect(parserOutputVideoPin, wmvDecoderInputPin, null);
DsError.ThrowExceptionForHR(hr);
IPin wmvDecoderOutputPin = DsFindPin.ByDirection(decoderFilter, PinDirection.Output, 0);
hr = graph.ConnectDirect(wmvDecoderOutputPin, videoRendererInputPin, null);
DsError.ThrowExceptionForHR(hr);
SafeRelease(wmvDecoderInputPin);
SafeRelease(wmvDecoderOutputPin);
}
else
{
wrapper = null;
SafeRelease(dmoFilter);
dmoFilter = null;
}
}
else
{
Type filterType = null;
IBaseFilter externalFilter = null;
CreateFilter(videoFilterSource.ExternalCLSID, videoFilterSource.Name, ref filterType, ref externalFilter);
hr = graph.AddFilter(externalFilter, videoFilterSource.Name);
DsError.ThrowExceptionForHR(hr);
IPin externalDecoderInputPin = DsFindPin.ByDirection(externalFilter, PinDirection.Input, 0);
hr = graph.ConnectDirect(parserOutputVideoPin, externalDecoderInputPin, null);
DsError.ThrowExceptionForHR(hr);
IPin externalDecoderOutputPin = DsFindPin.ByDirection(externalFilter, PinDirection.Output, 0);
hr = graph.ConnectDirect(externalDecoderOutputPin, videoRendererInputPin, null);
DsError.ThrowExceptionForHR(hr);
SafeRelease(externalDecoderInputPin);
SafeRelease(externalDecoderOutputPin);
}
break;
default:
throw new ArgumentOutOfRangeException($"{nameof(videoFilterSource)}.{nameof(FilterSource.SourceType)}");
}
}
///////////////////////////////////////////////////////////////////////////////
// Inherited methods //
///////////////////////////////////////////////////////////////////////////////
#region OVERRIDES
#endregion //OVERRIDES
///////////////////////////////////////////////////////////////////////////////
// Eventhandler //
///////////////////////////////////////////////////////////////////////////////
#region EVENTS
///////////////////////////////////////////////////////////////////////////////
// Eventhandler for UI, Menu, Buttons, Toolbars etc. //
///////////////////////////////////////////////////////////////////////////////
#region WINDOWSEVENTHANDLER
#endregion //WINDOWSEVENTHANDLER
///////////////////////////////////////////////////////////////////////////////
// Eventhandler for Custom Defined Events //
///////////////////////////////////////////////////////////////////////////////
#region CUSTOMEVENTHANDLER
#endregion //CUSTOMEVENTHANDLER
#endregion //EVENTS
///////////////////////////////////////////////////////////////////////////////
// Methods and Eventhandling for Background tasks //
///////////////////////////////////////////////////////////////////////////////
#region BACKGROUNDWORKER
#endregion //BACKGROUNDWORKER
///////////////////////////////////////////////////////////////////////////////
// Methods for doing main class job //
///////////////////////////////////////////////////////////////////////////////
#region PRIVATEMETHODS
/// <summary>
/// Create a new filter graph and add filters (devices, compressors,
/// misc), but leave the filters unconnected. Call renderGraph()
/// to connect the filters.
/// </summary>
/// <returns>True if successful created the graph.</returns>
protected bool createGraph()
{
int hr;
try
{
// Garbage collect, ensure that previous filters are released
GC.Collect();
// Get the graphbuilder object
this.graphBuilder = new FilterGraph() as IFilterGraph2;
// Get a ICaptureGraphBuilder2 to help build the graph
this.captureGraphBuilder = new CaptureGraphBuilder2() as ICaptureGraphBuilder2;
// Link the CaptureGraphBuilder to the filter graph
hr = this.captureGraphBuilder.SetFiltergraph(this.graphBuilder);
DsError.ThrowExceptionForHR(hr);
#if DEBUG
this.rotCookie = new DsROTEntry(this.graphBuilder);
#endif
// this.screenCaptureFilter = (IBaseFilter)new OgamaScreenCaptureFilter();
// Get the ogama screen capture device and add it to the filter graph
this.screenCaptureFilter = DirectShowUtils.CreateFilter(FilterCategory.VideoInputDevice, "OgamaCapture");
hr = this.graphBuilder.AddFilter(this.screenCaptureFilter, "OgamaCapture");
DsError.ThrowExceptionForHR(hr);
// Query the interface for the screen capture Filter
var ogamaFilter = this.screenCaptureFilter as IOgamaScreenCapture;
hr = ogamaFilter.set_Monitor(this.monitorIndex);
DsError.ThrowExceptionForHR(hr);
hr = ogamaFilter.set_Framerate(this.frameRate);
DsError.ThrowExceptionForHR(hr);
//// Get the IAMStreamConfig from the filter so we can configure it
//var videoStreamConfig = this.screenCaptureFilter as IAMStreamConfig;
var resolution = PresentationScreen.GetPresentationResolution();
//hr = videoStreamConfig.SetFormat(this.CreateVideoMediaType(24, resolution.Width, resolution.Height));
//DsError.ThrowExceptionForHR(hr);
this.smartTeeFilter = new SmartTee() as IBaseFilter;
hr = this.graphBuilder.AddFilter(this.smartTeeFilter, "Smart Tee");
DsError.ThrowExceptionForHR(hr);
if (SecondaryScreen.SystemHasSecondaryScreen())
{
// Add a DMO Wrapper Filter
this.dmoFilter = (IBaseFilter)new DMOWrapperFilter();
this.dmoWrapperFilter = (IDMOWrapperFilter)this.dmoFilter;
// But it is more useful to show how to scan for the DMO
var g = this.FindGuid("DmoOverlay", DMOCategory.VideoEffect);
hr = this.dmoWrapperFilter.Init(g, DMOCategory.VideoEffect);
DMOError.ThrowExceptionForHR(hr);
this.SetDMOParams(this.dmoFilter);
// Add it to the Graph
hr = this.graphBuilder.AddFilter(this.dmoFilter, "DMO Filter");
DsError.ThrowExceptionForHR(hr);
var dmo = (IMediaObject)this.dmoFilter;
hr = dmo.SetInputType(0, this.CreateVideoMediaType(24, resolution.Width, resolution.Height), DMOSetType.None);
DsError.ThrowExceptionForHR(hr);
hr = dmo.SetOutputType(0, this.CreateVideoMediaType(24, resolution.Width, resolution.Height), DMOSetType.None);
DsError.ThrowExceptionForHR(hr);
}
// Get the video compressor and add it to the filter graph
// Create the filter for the selected video compressor
this.videoCompressorFilter = DirectShowUtils.CreateFilter(
FilterCategory.VideoCompressorCategory,
this.videoCompressorName);
hr = this.graphBuilder.AddFilter(this.videoCompressorFilter, "Video Compressor");
DsError.ThrowExceptionForHR(hr);
// Render the file writer portion of graph (mux -> file)
hr = this.captureGraphBuilder.SetOutputFileName(
MediaSubType.Avi,
this.tempFilename,
out this.muxFilter,
out this.fileWriterFilter);
DsError.ThrowExceptionForHR(hr);
//// Disable overwrite
//// hr = this.fileWriterFilter.SetMode(AMFileSinkFlags.None);
//// DsError.ThrowExceptionForHR(hr);
hr = this.captureGraphBuilder.AllocCapFile(this.tempFilename, 10000000);
DsError.ThrowExceptionForHR(hr);
if (SecondaryScreen.SystemHasSecondaryScreen())
{
hr = this.captureGraphBuilder.RenderStream(null, null, this.screenCaptureFilter, null, this.smartTeeFilter);
DsError.ThrowExceptionForHR(hr);
hr = this.captureGraphBuilder.RenderStream(
null,
null,
this.smartTeeFilter,
this.videoCompressorFilter,
this.muxFilter);
DsError.ThrowExceptionForHR(hr);
hr = this.captureGraphBuilder.RenderStream(null, null, this.smartTeeFilter, null, this.dmoFilter);
DsError.ThrowExceptionForHR(hr);
hr = this.captureGraphBuilder.RenderStream(null, null, this.dmoFilter, null, null);
DsError.ThrowExceptionForHR(hr);
}
else
{
hr = this.captureGraphBuilder.RenderStream(
null,
null,
this.screenCaptureFilter,
this.videoCompressorFilter,
this.muxFilter);
DsError.ThrowExceptionForHR(hr);
}
// IMediaFilter filter = this.graphBuilder as IMediaFilter;
// IReferenceClock clock;
// filter.GetSyncSource(out clock);
hr = this.graphBuilder.SetDefaultSyncSource();
DsError.ThrowExceptionForHR(hr);
// Retreive the media control interface (for starting/stopping graph)
this.mediaControl = (IMediaControl)this.graphBuilder;
}
catch (Exception ex)
{
ExceptionMethods.HandleException(ex);
return false;
}
return true;
}
private void BuildGraph(Control hControl)
{
int hr;
DsDevice [] devs;
IBaseFilter ibfSource = null;
IBaseFilter dmoFilter = null;
IBaseFilter ibfRender = null;
IDMOWrapperFilter dmoWrapperFilter = null;
ICaptureGraphBuilder2 icgb = (ICaptureGraphBuilder2) new CaptureGraphBuilder2();
graphBuilder = (IFilterGraph2) new FilterGraph();
#if DEBUG
m_rot = new DsROTEntry(graphBuilder);
#endif
hr = icgb.SetFiltergraph(graphBuilder);
DsError.ThrowExceptionForHR(hr);
devs = DsDevice.GetDevicesOfCat(FilterCategory.VideoInputDevice);
if (devs.Length < 1)
{
throw new Exception("This sample requires a capture device. If you don't " +
"have a capture device, change the BuildGraph routine to use AddSourceFilter " +
"and use a file.");
}
// Add a source filter
hr = graphBuilder.AddSourceFilterForMoniker(devs[0].Mon, null, "Video Input Device", out ibfSource);
DsError.ThrowExceptionForHR(hr);
// Add a DMO Wrapper Filter
dmoFilter = (IBaseFilter) new DMOWrapperFilter();
dmoWrapperFilter = (IDMOWrapperFilter)dmoFilter;
// Since I know the guid of the DMO I am looking for, I *could* do this.
//hr = dmoWrapperFilter.Init(new Guid("{7EF28FD7-E88F-45bb-9CDD-8A62956F2D75}"), DMOCatergory.VideoEffect);
//DMOError.ThrowExceptionForHR(hr);
// But it is more useful to show how to scan for the DMO
Guid g = FindGuid("DmoFlip", DMOCategory.VideoEffect);
hr = dmoWrapperFilter.Init(g, DMOCategory.VideoEffect);
DMOError.ThrowExceptionForHR(hr);
SetDMOParams(dmoFilter);
// Add it to the Graph
hr = graphBuilder.AddFilter(dmoFilter, "DMO Filter");
DsError.ThrowExceptionForHR(hr);
ibfRender = (IBaseFilter) new VideoRenderer();
hr = graphBuilder.AddFilter(ibfRender, "renderer");
DsError.ThrowExceptionForHR(hr);
hr = icgb.RenderStream(null, null, ibfSource, dmoFilter, ibfRender);
DsError.ThrowExceptionForHR(hr);
ConfigVideo(graphBuilder as IVideoWindow, hControl);
Marshal.ReleaseComObject(ibfSource);
Marshal.ReleaseComObject(ibfRender);
}
public void SetupGraph()
{
GraphBuilder = (IGraphBuilder) new FilterGraph();
// Get ICaptureGraphBuilder2 to build the graph
CaptureGraphBuilder2 = new CaptureGraphBuilder2() as ICaptureGraphBuilder2;
try
{
ReturnHR = CaptureGraphBuilder2.SetFiltergraph(GraphBuilder);
IBaseFilter source_filter = null;
ReturnHR = GraphBuilder.AddSourceFilter(InputFile, "Source Filter", out source_filter);
IBaseFilter wmv_video_decoder_dmo = (IBaseFilter) new DMOWrapperFilter();
IDMOWrapperFilter dmo_wrapper_filter_v = (IDMOWrapperFilter)wmv_video_decoder_dmo;
ReturnHR = dmo_wrapper_filter_v.Init(new Guid("{82D353DF-90BD-4382-8BC2-3F6192B76E34}"), DMOCategory.VideoDecoder);
ReturnHR = GraphBuilder.AddFilter(wmv_video_decoder_dmo, "Wmv Video Decoder DMO");
IBaseFilter wmv_audio_decoder_dmo = (IBaseFilter) new DMOWrapperFilter();
IDMOWrapperFilter dmo_wrapper_filter_a = (IDMOWrapperFilter)wmv_audio_decoder_dmo;
ReturnHR = dmo_wrapper_filter_a.Init(new Guid("{2EEB4ADF-4578-4D10-BCA7-BB955F56320A}"), DMOCategory.AudioDecoder);
ReturnHR = GraphBuilder.AddFilter(wmv_audio_decoder_dmo, "Wmv Audio Decoder DMO");
IBaseFilter vp8_encoder = (IBaseFilter) new VP8Encoder();
ReturnHR = GraphBuilder.AddFilter(vp8_encoder, "VP8 Encoder");
IVP8Encoder vp8_encoder_interface = (IVP8Encoder)vp8_encoder;
if (target_bitrate != 0)
{
vp8_encoder_interface.SetTargetBitrate(target_bitrate);
}
IBaseFilter webm_muxer = (IBaseFilter) new WebMMuxer();
ReturnHR = GraphBuilder.AddFilter(webm_muxer, "WebM Muxer");
IBaseFilter vorbis_encoder = (IBaseFilter) new VorbisEncoder();
ReturnHR = GraphBuilder.AddFilter(vorbis_encoder, "Vorbis Encoder");
IBaseFilter file_writer = (IBaseFilter) new FileWriter();
ReturnHR = GraphBuilder.AddFilter(file_writer, "file writer");
IFileSinkFilter filewriter_sink = file_writer as IFileSinkFilter;
ReturnHR = filewriter_sink.SetFileName(OutputFile, null);
ReturnHR = GraphBuilder.ConnectDirect(FindPin("Raw Video 1", source_filter), FindPin("in0", wmv_video_decoder_dmo), null);
ReturnHR = GraphBuilder.ConnectDirect(FindPin("Raw Audio 0", source_filter), FindPin("in0", wmv_audio_decoder_dmo), null);
ReturnHR = GraphBuilder.ConnectDirect(FindPin("out0", wmv_audio_decoder_dmo), FindPin("PCM In", vorbis_encoder), null);
ReturnHR = GraphBuilder.ConnectDirect(FindPin("out0", wmv_video_decoder_dmo), FindPin("YUV", vp8_encoder), null);
ReturnHR = GraphBuilder.ConnectDirect(FindPin("Vorbis Out", vorbis_encoder), FindPin("audio", webm_muxer), null);
ReturnHR = GraphBuilder.ConnectDirect(FindPin("VP80", vp8_encoder), FindPin("video", webm_muxer), null);
ReturnHR = GraphBuilder.ConnectDirect(FindPin("outpin", webm_muxer), FindPin("in", file_writer), null);
}
catch (Exception)
{
LogError("Failed to initialize FilterGraph.");
}
finally
{
if (CaptureGraphBuilder2 != null)
{
Marshal.ReleaseComObject(CaptureGraphBuilder2);
CaptureGraphBuilder2 = null;
}
}
}
