Play audio and video in Windows 10 Universal App?

I need to play audio and video in a Windows application where I get the url from networkcall and I need to add Url to Source. I tried this way, but the video doesn't play or audio doesn't play. Someone help me on how to achieve this? Is there any other way to achieve this?

Thanks in Advance.

My xaml code:

<StackPanel HorizontalAlignment="Center" Grid.Row="3">

         <MediaElement x:Name="media" 
              Source="Videos/video1.mp4" 
              Width="400" 
              AutoPlay="False"
              AreTransportControlsEnabled="True" />

            <StackPanel Orientation="Horizontal"
            HorizontalAlignment="Center">

                <Button Content="Play" Click="Play_Click"/>
                <Button Content="Pause" Click="Pause_Click"/>
                <Button Content="Stop" Click="Stop_Click" />

            </StackPanel>
        </StackPanel>

      

        
        
        
      

    

My cs code:

  async void Play_Click(object sender, RoutedEventArgs e)
    {
        await Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, () =>
        {
            Uri pathUri = new Uri("https://www.youtube.com/watch?v=sOEg_YZQsTI");
            media.Source = pathUri;
            Util.debugLog("PLaying ...");
            media.Play();
            media.Volume = 40;
        });
    }

    async void Pause_Click(object sender, RoutedEventArgs e)
    {
        await Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, () =>
        {
            Util.debugLog("Paused .. ");
            media.Pause();
        });
    }

    async void Stop_Click(object sender, RoutedEventArgs e)
    {
        await Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, () =>
        {
            Util.debugLog("Stoped ..");
            media.Stop();
        });
    }


    void Media_MediaFailed(object sender, ExceptionRoutedEventArgs e)
    {
        // Handle failed media event
    }

    void Media_MediaOpened(object sender, RoutedEventArgs e)
    {
        // Handle open media event
    }

    void Media_MediaEnded(object sender, RoutedEventArgs e)
    {
        // Handle media ended event
    }