Exemple #1
0
        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);
        }
Exemple #2
0
        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);
        }