- title = self._html_search_regex(r'<title>(.*?)</title>', webpage, 'title')
- video_url = self._search_regex(r'<source src="(.*?)" type="video/mp4">', webpage, 'video_url')
- thumbnail_url = self._search_regex(r'<img id="video-thumbnail" src="(.*?)" alt="Video thumbnail">', webpage, 'thumbnail_url')
+
+ title = self._html_search_regex(
+ r'<title>(.+?)</title>', webpage,
+ 'title', default=None) or self._og_search_title(webpage)
+ video_url = self._proto_relative_url(self._search_regex(
+ r'<source[^>]+src=(["\'])(?P<url>.+?)\1',
+ webpage, 'video URL', default=None,
+ group='url')) or self._og_search_video_url(webpage)
+ thumbnail = self._proto_relative_url(self._search_regex(
+ r'<img[^>]+id=["\']video-thumbnail["\'][^>]+src=(["\'])(?P<url>.+?)\1',
+ webpage, 'thumbnail url', default=None,
+ group='url')) or self._og_search_thumbnail(webpage)