+ # for formats that don't support thumbnails (like 3gp) AtomicParsley
+ # won't create to the temporary file
+ if b'No changes' in stdout:
+ self._downloader.report_warning('The file format doesn\'t support embedding a thumbnail')
+ else:
+ os.remove(encodeFilename(filename))
+ os.rename(encodeFilename(temp_filename), encodeFilename(filename))
+
+ return [], info