encoded_id = self._search_regex(
             r"jsclassref\s*=\s*'([^']*)'", webpage, 'encoded id', default=None)
 
         encoded_id = self._search_regex(
             r"jsclassref\s*=\s*'([^']*)'", webpage, 'encoded id', default=None)
 
-                self._extract_rtmp_video(webpage) +
-                self._extract_http_video(webpage) +
-                self._extract_http_audio(webpage, video_id))
+                self._extract_rtmp_video(webpage)
+                + self._extract_http_video(webpage)
+                + self._extract_http_audio(webpage, video_id))