title: Merge two Media Sources together
body: <p>I have run to a brick wall in this particular situation where I have to merge two <code>MediaSources</code> together, one for video and one for audio, and then play that in <code>MediaPlayerElement</code>.</p>
  
  <p>I have searched google a lot but haven't found anything relating to it. The actual problem is that I get two <code>Urls</code> and I can create two <code>MediaSources</code> from them but I cant put those two sources in the player source, because when i do it either plays the video or the audio depending upon which was the last source.</p>
  
  <p>So I basically created two <code>MediaPlayerElement</code>s and assigned different sources to them and try to sync the audio and video between them but sometimes it creates awful results. I have also thought about creating two streams and then combining those two to create a single stream but I dont know anything about streams so I am not able to do that yet.</p>
  
  <p>Any suggestions here? Maybe a 3rd party library which works in UWP and can help me here? Thanks</p>