//</SnippetToggleUnchecked>
//<SnippetAudioTracksChanged_CodecCheck>
private async void SnippetAudioTracksChanged_CodecCheck(MediaPlaybackItem sender, IVectorChangedEventArgs args)
{
if (args.CollectionChange == CollectionChange.ItemInserted)
{
var insertedTrack = sender.AudioTracks[(int)args.Index];
var decoderStatus = insertedTrack.SupportInfo.DecoderStatus;
if (decoderStatus != MediaDecoderStatus.FullySupported)
{
if (decoderStatus == MediaDecoderStatus.Degraded)
{
ShowMessageToUser(string.Format("Track {0} can play but playback will be degraded. {1}",
insertedTrack.Name, insertedTrack.SupportInfo.DegradationReason));
}
else
{
// status is MediaDecoderStatus.UnsupportedSubtype or MediaDecoderStatus.UnsupportedEncoderProperties
ShowMessageToUser(string.Format("Track {0} uses an unsupported media format.", insertedTrack.Name));
}
Windows.Media.MediaProperties.AudioEncodingProperties props = insertedTrack.GetEncodingProperties();
await HelpUserInstallCodec(props);
}
else
{
insertedTrack.OpenFailed += InsertedTrack_OpenFailed;
}
}
}
// </SnippetOpenFailed>
public async Task HelpUserInstallCodec(Windows.Media.MediaProperties.AudioEncodingProperties props)
{
await Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, () =>
{
// This is fake async so the method can be called async
});
}
