Please optimize the case where the folder contains Thumbs.db

[BruceLz]

I wonder if the author can optimize the case where the folder contains Thumbs.db in next version. Because this situation is very disturbing. Just modify this code to frame_paths = [osp.join(frame_save_dir, frame_name) for frame_name in sorted(os.listdir(frame_save_dir)) if frame_name!='Thumbs.db']