private void PlatformInitialize() { if (Topology != null) { return; } //MediaManagerState.CheckStartup(); MediaFactory.CreateTopology(out _topology); SharpDX.MediaFoundation.MediaSource mediaSource; { SourceResolver resolver = new SourceResolver(); ObjectType otype; ComObject source = resolver.CreateObjectFromURL(FileName, SourceResolverFlags.MediaSource, null, out otype); mediaSource = source.QueryInterface <SharpDX.MediaFoundation.MediaSource>(); resolver.Dispose(); source.Dispose(); } PresentationDescriptor presDesc; mediaSource.CreatePresentationDescriptor(out presDesc); for (var i = 0; i < presDesc.StreamDescriptorCount; i++) { RawBool selected = false; StreamDescriptor desc; presDesc.GetStreamDescriptorByIndex(i, out selected, out desc); if (selected) { TopologyNode sourceNode; MediaFactory.CreateTopologyNode(TopologyType.SourceStreamNode, out sourceNode); sourceNode.Set(TopologyNodeAttributeKeys.Source, mediaSource); sourceNode.Set(TopologyNodeAttributeKeys.PresentationDescriptor, presDesc); sourceNode.Set(TopologyNodeAttributeKeys.StreamDescriptor, desc); TopologyNode outputNode; MediaFactory.CreateTopologyNode(TopologyType.OutputNode, out outputNode); var majorType = desc.MediaTypeHandler.MajorType; if (majorType == MediaTypeGuids.Video) { Activate activate; SampleGrabber = new VideoSampleGrabber(); _mediaType = new MediaType(); _mediaType.Set(MediaTypeAttributeKeys.MajorType, MediaTypeGuids.Video); // Specify that we want the data to come in as RGB32. _mediaType.Set(MediaTypeAttributeKeys.Subtype, new Guid("00000016-0000-0010-8000-00AA00389B71")); MediaFactory.CreateSampleGrabberSinkActivate(_mediaType, SampleGrabber, out activate); outputNode.Object = activate; long frameSize = desc.MediaTypeHandler.CurrentMediaType.Get <long>(MediaTypeAttributeKeys.FrameSize); Width = (int)(frameSize >> 32); Height = (int)(frameSize & 0x0000FFFF); } if (majorType == MediaTypeGuids.Audio) { Activate activate; MediaFactory.CreateAudioRendererActivate(out activate); outputNode.Object = activate; } _topology.AddNode(sourceNode); _topology.AddNode(outputNode); sourceNode.ConnectOutput(0, outputNode, 0); Duration = new TimeSpan(presDesc.Get <long>(PresentationDescriptionAttributeKeys.Duration)); sourceNode.Dispose(); outputNode.Dispose(); } desc.Dispose(); } presDesc.Dispose(); mediaSource.Dispose(); VideoFrame = new Texture2D(Game.Instance.GraphicsDevice, Width, Height, ColorFormat.Bgra8, false); }
private void PlatformInitialize() { if (Topology != null) return; //MediaManagerState.CheckStartup(); MediaFactory.CreateTopology(out _topology); SharpDX.MediaFoundation.MediaSource mediaSource; { SourceResolver resolver = new SourceResolver(); ObjectType otype; ComObject source = resolver.CreateObjectFromURL(FileName, SourceResolverFlags.MediaSource, null, out otype); mediaSource = source.QueryInterface<SharpDX.MediaFoundation.MediaSource>(); resolver.Dispose(); source.Dispose(); } PresentationDescriptor presDesc; mediaSource.CreatePresentationDescriptor(out presDesc); for (var i = 0; i < presDesc.StreamDescriptorCount; i++) { RawBool selected = false; StreamDescriptor desc; presDesc.GetStreamDescriptorByIndex(i, out selected, out desc); if (selected) { TopologyNode sourceNode; MediaFactory.CreateTopologyNode(TopologyType.SourceStreamNode, out sourceNode); sourceNode.Set(TopologyNodeAttributeKeys.Source, mediaSource); sourceNode.Set(TopologyNodeAttributeKeys.PresentationDescriptor, presDesc); sourceNode.Set(TopologyNodeAttributeKeys.StreamDescriptor, desc); TopologyNode outputNode; MediaFactory.CreateTopologyNode(TopologyType.OutputNode, out outputNode); var majorType = desc.MediaTypeHandler.MajorType; if (majorType == MediaTypeGuids.Video) { Activate activate; SampleGrabber = new VideoSampleGrabber(); _mediaType = new MediaType(); _mediaType.Set(MediaTypeAttributeKeys.MajorType, MediaTypeGuids.Video); // Specify that we want the data to come in as RGB32. _mediaType.Set(MediaTypeAttributeKeys.Subtype, new Guid("00000016-0000-0010-8000-00AA00389B71")); MediaFactory.CreateSampleGrabberSinkActivate(_mediaType, SampleGrabber, out activate); outputNode.Object = activate; long frameSize = desc.MediaTypeHandler.CurrentMediaType.Get<long>(MediaTypeAttributeKeys.FrameSize); Width = (int)(frameSize >> 32); Height = (int) (frameSize & 0x0000FFFF); } if (majorType == MediaTypeGuids.Audio) { Activate activate; MediaFactory.CreateAudioRendererActivate(out activate); outputNode.Object = activate; } _topology.AddNode(sourceNode); _topology.AddNode(outputNode); sourceNode.ConnectOutput(0, outputNode, 0); Duration = new TimeSpan(presDesc.Get<long>(PresentationDescriptionAttributeKeys.Duration)); sourceNode.Dispose(); outputNode.Dispose(); } desc.Dispose(); } presDesc.Dispose(); mediaSource.Dispose(); VideoFrame = new Texture2D(Game.Instance.GraphicsDevice, Width, Height, ColorFormat.Bgra8, false); }