+        if ext == 'm3u8':
+            formats.extend(self._extract_m3u8_formats(
+                video_url, video_id, ext='mp4', entry_protocol='m3u8_native',
+                m3u8_id='hls', fatal=False))
+        elif ext == 'f4m':
+            formats.extend(self._extract_f4m_formats(
+                video_url, video_id, f4m_id='hds', fatal=False))
+        else:
+            formats.append({
+                'url': video_url,
+            })
+        self._sort_formats(formats)
+