formats.extend(self._extract_m3u8_formats(
source_url, video_id, 'mp4', 'm3u8_native', fatal=False))
elif source_type.startswith('audio'):
formats.extend(self._extract_m3u8_formats(
source_url, video_id, 'mp4', 'm3u8_native', fatal=False))
elif source_type.startswith('audio'):