[generic] Extract m3u8 formats from JSON-LD

yt_dlp/extractor/generic.py

@@ -3653,6 +3653,10 @@ class GenericIE(InfoExtractor):
         json_ld = self._search_json_ld(webpage, video_id, default={})
         if json_ld.get('url'):
             self.report_detected('JSON LD')
+            if determine_ext(json_ld.get('url')) == 'm3u8':
+                json_ld['formats'], json_ld['subtitles'] = self._extract_m3u8_formats_and_subtitles(
+                    json_ld['url'], video_id, 'mp4')
+                json_ld.pop('url')
             return merge_dicts(json_ld, info_dict)
 
         def check_video(vurl):