private async void AcceptButton_Click(object sender, RoutedEventArgs e)
{
Pause();
progressText.Text = "0";
progressText.Visibility = Visibility.Visible;
completedText.Visibility = Visibility.Collapsed;
overlayGrid.Visibility = Visibility.Visible;
OpenProcessingOverlay.Begin();
var props = await(_model.StorageFile as StorageFile).Properties.GetVideoPropertiesAsync();
var profile = MediaTranscoding.CreateVideoEncodingProfileFromProps(true, props);
if (_tempFile == null)
{
_tempFile = await ApplicationData.Current.TemporaryFolder.CreateFileAsync(Path.ChangeExtension(_model.StorageFile.Name, ".mp4"), CreationCollisionOption.GenerateUniqueName);
}
await SaveComposition();
_renderTask = _model.Composition.RenderToFileAsync(_tempFile, MediaTrimmingPreference.Precise, profile);
_renderTask.Progress = OnProgress;
_renderTask.Completed = OnCompleted;
}
private async void AcceptButton_Click(object sender, RoutedEventArgs e)
{
Pause();
progressText.Text = "0";
progressText.Visibility = Visibility.Visible;
completedText.Visibility = Visibility.Collapsed;
overlayGrid.Visibility = Visibility.Visible;
OpenProcessingOverlay.Begin();
Analytics.TrackEvent("VideoEditor_ExportStarted");
await SaveComposition();
var transcoder = new MediaTranscoder()
{
VideoProcessingAlgorithm = App.RoamingSettings.Read(Constants.VIDEO_PROCESSING, MediaVideoProcessingAlgorithm.Default)
};
var props = await(_model.StorageFile as StorageFile).Properties.GetVideoPropertiesAsync();
var profile = MediaTranscoding.CreateVideoEncodingProfileFromProps(props);
var source = _model.Composition.GenerateMediaStreamSource();
if (_tempFile == null)
{
_tempFile = await ApplicationData.Current.TemporaryFolder.CreateFileAsync(Path.ChangeExtension(_model.StorageFile.Name, ".mp4"), CreationCollisionOption.GenerateUniqueName);
}
if (_tempStream != null)
{
_tempStream.Dispose();
}
_tempStream = await _tempFile.OpenAsync(FileAccessMode.ReadWrite);
var result = await transcoder.PrepareMediaStreamSourceTranscodeAsync(source, _tempStream, profile);
if (!result.CanTranscode)
{
await UIUtilities.ShowErrorDialogAsync("Unable to Transcode!", $"Returned {result.FailureReason}");
return;
}
_renderTask = result.TranscodeAsync();
_renderTask.Progress = OnProgress;
_renderTask.Completed += OnCompleted;
}