fmts, subs = self._extract_m3u8_formats_and_subtitles(stream_url, video_id, 'mp4', m3u8_id='hls', live=True)
formats.extend(fmts)
subtitles = self._merge_subtitles(subtitles, subs)
fmts, subs = self._extract_m3u8_formats_and_subtitles(stream_url, video_id, 'mp4', m3u8_id='hls', live=True)
formats.extend(fmts)
subtitles = self._merge_subtitles(subtitles, subs)