+ def extract_formats(format_url, format_key=None, lang=None):
+ ext = determine_ext(format_url)
+ new_formats = []
+ if format_key == 'hls' or ext == 'm3u8':
+ new_formats = self._extract_m3u8_formats(
+ format_url, video_id, 'mp4', entry_protocol='m3u8_native',
+ m3u8_id='hls', fatal=False)
+ elif format_key == 'dash' or ext == 'mpd':
+ return
+ new_formats = self._extract_mpd_formats(
+ format_url, video_id, mpd_id='dash', fatal=False)
+ if lang:
+ for f in new_formats:
+ if not f.get('language'):
+ f['language'] = lang
+ formats.extend(new_formats)
+
+ options = self._parse_json(
+ self._search_regex(
+ r'(?s)var\s+playerOptions\s*=\s*({.+?});',
+ playerpage, 'player options', default='{}'),
+ video_id, transform_source=js_to_json, fatal=False)
+ if options:
+ for key, tracks in options.get('tracks', {}).items():
+ if not isinstance(tracks, list):
+ continue
+ for track in tracks:
+ src = track.get('src')
+ if src:
+ extract_formats(src, key.lower(), track.get('lang'))
+
+ if not formats:
+ for _, src in re.findall(r'src["\']\s*:\s*(["\'])(.+?)\1', playerpage):
+ extract_formats(src)