private void ShowFFMPEGOutput(object sender, RoutedEventArgs e)
 {
     ffmpegOutputViewer = new FFMPEGOutputViewer();
     ffmpegOutput.ForEach(str => ffmpegOutputViewer.AddOutput(str));
     ffmpegOutputViewer.Show();
 }
 private void ShowFFMPEGOutput(object sender, RoutedEventArgs e)
 {
     ffmpegOutputViewer = new FFMPEGOutputViewer();
     ffmpegOutput.ForEach(str => ffmpegOutputViewer.AddOutput(str));
     ffmpegOutputViewer.Show();
 }