- ext = '-mc_defaultQuality-h.json'
- json_url = url[:-5] + ext
-
- json = self._download_json(json_url, video_id)
- thumb_url = json['_previewImage']
-
- m3u8_url = json['_mediaArray'][1]['_mediaStreamArray'][0]['_stream'][0]
- m3u8_formats = self._extract_m3u8_formats(m3u8_url, video_id, ext="mp4")