config = self._parse_json(
             self._search_regex(
-                r'=\s*({.+?})\s*,\s*[\da-zA-Z_]+\s*=',
+                (r'=\s*({.+?})\s*;\s*v1ar\b',
+                 r'=\s*({.+?})\s*,\s*[\da-zA-Z_]+\s*='),
                 webpage, 'config', default='{}'),
             display_id, transform_source=js_to_json, fatal=False)
 
                 'height': int(height),
                 'filesize_approx': parse_filesize(filesize),
             } for format_url, height, filesize in re.findall(
-                r'<a[^>]+href="(/download/[^"]+)">MPEG4 (\d+)p<span[^>]*>(\d+\s+[a-zA-Z]+)<',
+                r'<a[^>]+href="(/download/[^"]+)">[^<]*?(\d+)p<span[^>]*>(\d+\s*[a-zA-Z]+)<',
                 webpage)]
             thumbnail = None
             duration = None