+ # Explicitly specified SMIL (see https://github.com/rg3/youtube-dl/issues/7385)
+ elif '/guid/' in url:
+ headers = {}
+ source_url = smuggled_data.get('source_url')
+ if source_url:
+ headers['Referer'] = source_url
+ request = sanitized_Request(url, headers=headers)
+ webpage = self._download_webpage(request, video_id)
+ smil_url = self._search_regex(
+ r'<link[^>]+href=(["\'])(?P<url>.+?)\1[^>]+type=["\']application/smil\+xml',
+ webpage, 'smil url', group='url')
+ path = self._search_regex(
+ r'link\.theplatform\.com/s/((?:[^/?#&]+/)+[^/?#&]+)', smil_url, 'path')
+ smil_url += '?' if '?' not in smil_url else '&' + 'formats=m3u,mpeg4'