+ r'<iframe id="player_iframe"[^>]+src="([^"]+)"', webpage, 'iframe path', default=None)
+
+ if iframe_path is None:
+ iframe_path = self._html_search_regex(
+ r'<iframe [^>]*\bsrc="(https://motorsport\.tv/embed/[^"]+)', webpage, 'embed iframe path')
+ return self.url_result(iframe_path)
+