//public static Task<TimeSpan> StreamDuration(this MediaElement element, Stream stream) { // using(var stream = await file.OpenReadAsync()) { // return element.Duration(stream, (e, s) => e.SetSource(s, s.ContentType)); // } //} public static async Task <TimeSpan> UriDuration(this MediaElement element, Uri uri) { var file = await StoreFileUtils.GetFile(uri); if (file != null) { return(await element.FileDuration(file)); } else { return(await element.Duration(uri, (e, u) => e.Source = u)); } }