webpage, 'title', default=None) or self._og_search_title(webpage)
video_url = self._search_regex(
r'file\s*:\s*["\'](http[^"\']+)["\'],', webpage, 'file url')
webpage, 'title', default=None) or self._og_search_title(webpage)
video_url = self._search_regex(
r'file\s*:\s*["\'](http[^"\']+)["\'],', webpage, 'file url')