+ # Video info not in first request, do a secondary request using
+ # tahoe player specific URL
+ tahoe_data = self._download_webpage(
+ self._VIDEO_PAGE_TAHOE_TEMPLATE % video_id, video_id,
+ data=urlencode_postdata({
+ '__a': 1,
+ '__pc': self._search_regex(
+ r'pkg_cohort["\']\s*:\s*["\'](.+?)["\']', webpage,
+ 'pkg cohort', default='PHASED:DEFAULT'),
+ '__rev': self._search_regex(
+ r'client_revision["\']\s*:\s*(\d+),', webpage,
+ 'client revision', default='3944515'),
+ 'fb_dtsg': self._search_regex(
+ r'"DTSGInitialData"\s*,\s*\[\]\s*,\s*{\s*"token"\s*:\s*"([^"]+)"',
+ webpage, 'dtsg token', default=''),
+ }),
+ headers={
+ 'Content-Type': 'application/x-www-form-urlencoded',
+ })
+ tahoe_js_data = self._parse_json(
+ self._search_regex(
+ r'for\s+\(\s*;\s*;\s*\)\s*;(.+)', tahoe_data,
+ 'tahoe js data', default='{}'),
+ video_id, fatal=False)
+ video_data = extract_from_jsmods_instances(tahoe_js_data)
+
+ if not video_data:
+ raise ExtractorError('Cannot parse data')
+
+ subtitles = {}