Component WPF to render streaming

Question

Hi

I make a graph by GraphEdit to view a stream make by a device, and I use GraphEditPlusper to obtain corrispondent C# code. I want to know if is possible view the stream (the stream is renderized from ip address) on a WPF form, This using obtained code

In BuilsGraph method I have the following code:

 ICaptureGraphBuilder2 pBuilder = (ICaptureGraphBuilder2)new CaptureGraphBuilder2();
            hr = pBuilder.SetFiltergraph(pGraph);
            checkHR(hr, "Can't SetFiltergrapgh");



            //Guid CLSID_VideoSolutionSource = new Guid("{" + m_LiveStreamId + "}");
            Guid CLSID_VideoSolutionSource = new Guid("{17ADDE6C-ED6E-4867-8133-9198CCC7F740}");// VVSSourceFilter.ax            
            Guid CLSID_VideoSolutionsDecoderFilter = new Guid("{7C71B31D-3F3F-4477-A4FF-BAB16D5B8C68}");// VVSDecoderFilter.ax
            Guid CLSID_EnhanceVideoRenderr = new Guid("{FA10746C-9B63-4B6C-BC49-FC300EA5F256}");// evr.dll

            // add Video Solution Source
            IBaseFilter pVideoSolutionSource = (IBaseFilter)Activator.CreateInstance(Type.GetTypeFromCLSID(CLSID_VideoSolutionSource));
            hr = pGraph.AddFilter(pVideoSolutionSource, "Video Solution Source");
            checkHR(hr, "Can't add Video Solution Source to Graph");

            
            // set source filename 
            IFileSourceFilter pVideoSolutionSource_src = pVideoSolutionSource as IFileSourceFilter;
            
            if (pVideoSolutionSource_src == null)
                checkHR(unchecked((int)0x80004002), "Can't get IFileSourceFilter");
            hr = pVideoSolutionSource_src.Load(srcFile1, null);
            checkHR(hr, "Can't load file");

            //add Video Solution Decoder Filter
            IBaseFilter pVideoSolutionDecoderFilter = (IBaseFilter)Activator.CreateInstance(Type.GetTypeFromCLSID(CLSID_VideoSolutionsDecoderFilter));
            hr = pGraph.AddFilter(pVideoSolutionDecoderFilter, "Video Solution Decoder Filter");
            checkHR(hr, "Can't add Video Solution Decoder Filter to Graph");            

            // connect Video Solution Source and Video Solutions Decoder Filter
            hr = pGraph.ConnectDirect(GetPin(pVideoSolutionSource, "Live Video"), GetPin(pVideoSolutionDecoderFilter, "XForm In"), null);
            checkHR(hr, "Can't connect Video Solution Source and Video Solution Decoder Filter");

            //add Enhanced Video Render
            IBaseFilter pEnhancedVideoRender = (IBaseFilter)Activator.CreateInstance(Type.GetTypeFromCLSID(CLSID_EnhanceVideoRenderr));
            hr = pGraph.AddFilter(pEnhancedVideoRender, "Enhanced Video Render");
            checkHR(hr, "Can't add Enhanced Video Render to graph");

            //connect Video Solution Decoder Filter and Enhanced Video Render
            hr = pGraph.ConnectDirect(GetPin(pVideoSolutionDecoderFilter, "XForm Out"), GetPin(pEnhancedVideoRender, "EVR Input0"), null);
            checkHR(hr, "Can't connect Video Solution Decoder Filter and Enhanced Video Renderer");

In the costructor:

IGraphBuilder graph = (IGraphBuilder)new FilterGraph();
                Console.WriteLine("Building graph...");
                BuilsGraph(graph, @"Video Solution Source Filter: ");
                Console.WriteLine("Running...");
                IMediaControl mediaControl = (IMediaControl)graph;
                IMediaEvent mediaEvent = (IMediaEvent)graph;
                int hr = mediaControl.Run();
                checkHR(hr, "Can't run the graph");
                bool stop = false;

                while (!stop)
                {
                    System.Threading.Thread.Sleep(500);
                    Console.WriteLine(".");
                    EventCode ev;
                    IntPtr p1, p2;

                    //System.Windows.Forms.Application.DoEvents();
                    while (mediaEvent.GetEvent(out ev, out p1, out p2, 0) == 0)
                    {
                        if (ev == EventCode.Complete || ev == EventCode.UserAbort)
                        {
                            Console.WriteLine("Done!");
                            stop = true;
                        }
                        else
                            if (ev == EventCode.ErrorAbort)
                            {
                                Console.WriteLine("An error occurred: HRESULT={0:X}", p1);
                                mediaControl.Stop();
                                stop = true;
                            }
                        mediaEvent.FreeEventParams(ev, p1, p2);
                    }
                }

Thank's

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Valentina Tavanti

Answer 1

Hi Vale820_1,

Thank you for your post. But here is English Forum that member can't understand you if you don't ask question in English. So I'm moving your thread. You can open a new thread in English to ask this question, sorry for any inconvenience.

Thank you for your understanding and support.

Have a nice day.

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Annabella Luo[MSFT]
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