m3u8_formats = self._extract_m3u8_formats(
m3u8_url, video_id, 'mp4', 'm3u8_native', 0, 'hls', fatal=False)
if m3u8_formats:
- formats.append(m3u8_formats)
+ formats.extend(m3u8_formats)
for key in ('other', 'sd', 'hd'):
formats += files[key]
self._sort_formats(formats)