MediaPlayerElement with Source bound to a MediaPlaybackList shows buffering at startup. How can i fix that?

Question

The MediaPlayerElement is linked to a MediaPlaybackList which is still empty when the app starts. As a result, the TransportControls are not displayed in the MediaPlayerElement but only the buffering display. That's rather ugly. Does anyone have a tip how can I change that?

Answer 1

Hi,

Welcome to Microsoft Q&A!

I can reproduce your issue, this behavior is by design. The MediaPlayerElement control needs to be initialized before use, so the buffering will display for a short time. If you want to improve it, please submit your feature requirement to the Windows Feedback Hub app that is Windows built-in app.

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Answer 2

The binding is in XAML:

<MediaPlayerElement Grid.Row="0" 
                            x:Uid="mediaPlayer" 
                            x:Name="mediaPlayer"
                            AutoPlay="False"
                            AreTransportControlsEnabled="True" 
                            VerticalContentAlignment="Stretch" 
                            HorizontalContentAlignment="Stretch" 
                            AllowDrop="True" 
                            Opacity="1"
                            Stretch="UniformToFill"
                            Source="{x:Bind MediaPlaylistElement.MediaPlaybackItemsList, Mode=OneWay}">
            <MediaPlayerElement.TransportControls>
                <MediaTransportControls x:Name="StandardTransportControls" 
                                        IsNextTrackButtonVisible="True" 
                                        IsPreviousTrackButtonVisible="True" 
                                        IsSkipBackwardButtonVisible="True" 
                                        IsSkipBackwardEnabled="True" 
                                        IsSkipForwardButtonVisible="True" 
                                        IsSkipForwardEnabled="True"
                                        IsPlaybackRateButtonVisible="True" 
                                        IsPlaybackRateEnabled="True">
                </MediaTransportControls>
            </MediaPlayerElement.TransportControls>
        </MediaPlayerElement>

Answer 3

Thank you for your answer. I have solved it.
I have removed the Source binding in XAML and Check the Source before adding files to the PlaybackList.

public void CheckMediaPlayerElementSource()
        {
            if (MediaHelper.MediaPlayerElementReference.Source == null || 
                MediaHelper.MediaPlayerElementReference.Source != MediaPlaybackItemsList)
                MediaHelper.MediaPlayerElementReference.Source = MediaPlaybackItemsList;
        }