/// <summary>
/// Registers element for current media stream source
/// </summary>
/// <param name="element"></param>
private void RegisterWith(MediaElement element)
{
if (_extensionManager != null)
{
throw new InvalidOperationException("MediaStreamSource is already registered with a media element.");
}
_extensionManager = new MediaExtensionManager();
var config = new Windows.Foundation.Collections.PropertySet();
// Registration of the scheme handler is global, so we need to get unique scheme so our
// plugin will be used only for our this one instance of media element.
string uri = "samplemss-" + element.GetHashCode() + ":";
config.Add("plugin", new MMSWinRTPlugin(this));
_extensionManager.RegisterSchemeHandler("MSSWinRTExtension.MediaStreamSchemeHandler", uri, config);
element.Source = new Uri(uri);
}