unable to read bytes[] from socketstream

Question

I am unable to read byte[] using DataReader on Socket.InputStream. Also is it possible to  play video in MediaElement from background thread. I am basically capturing bytes from webcam and want to send it using socketstream. Below is my code:     //streamSocketListener.ConnectionReceived +=receiveData;     private async void receiveData(StreamSocketListener socketListener, StreamSocketListenerConnectionReceivedEventArgs args)     {         DataReader dataReader = new DataReader(args.Socket.InputStream);         dataReader.InputStreamOptions = InputStreamOptions.Partial;         try         {                 await dataReader.LoadAsync(1024);                 byte[] streamBytes = new byte[dataReader.UnconsumedBufferLength];                 dataReader.ReadBytes(streamBytes);                 dataReader.DetachStream();                 //code to read bytes into receiverrandomaccessstream                 var receiverRandomAccessStream = new InMemoryRandomAccessStream();                 DataWriter dataWriter = new DataWriter(receiverRandomAccessStream);                 dataWriter.WriteBytes(streamBytes);                 await dataWriter.StoreAsync();                 receiverRandomAccessStream.Seek(0);                 //update UI                 await Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>                     mediaElement.SetSource(receiverRandomAccessStream, "video/x-ms-wmv"));         }         catch (Exception exception)         {             Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>                     ReceiverTextBox.Text = exception.ToString());         }     } And the code to send bytes[] private async Task sendData(byte[] byte_data) { Int32 len = 0; try { DataWriter dataWriter = new DataWriter(streamSocket.OutputStream); dataWriter.WriteUInt32((uint)byte_data.Length); dataWriter.WriteBytes(byte_data); await dataWriter.StoreAsync(); await dataWriter.FlushAsync(); dataWriter.DetachStream(); dataWriter.Dispose(); } catch (Exception exception) { } }

Answer 1

The code looks okay as far as sending/receiving goes. Can you capture a Network trace using Microsoft Network Monitor and check whether the data is actually received by the receiver?

---

Windows Store Developer Solutions #WSDevSol || Want more solutions? See our blog, http://aka.ms/t4vuvz

Answer 2

I am actually not able to receive. I think there is some problem with byte receive thing. I am getting the following exception:

System.Exception: The operation identifier is not valid.

   at Windows.Storage.Streams.DataReader.LoadAsync(UInt32 count)

Also I want to know whether its possible to play video on MediaElement using byte[] received from the background thread.