[generic] Pass referer to extracted formats

Closes #2839

yt_dlp/extractor/generic.py

@@ -3991,12 +3991,16 @@ class GenericIE(InfoExtractor):
 
             # here's a fun little line of code for you:
             video_id = os.path.splitext(video_id)[0]
+            headers = {
+                'referer': full_response.geturl()
+            }
 
             entry_info_dict = {
                 'id': video_id,
                 'uploader': video_uploader,
                 'title': video_title,
                 'age_limit': age_limit,
+                'http_headers': headers,
             }
 
             if RtmpIE.suitable(video_url):
@@ -4014,11 +4018,11 @@ class GenericIE(InfoExtractor):
             elif ext == 'xspf':
                 return self.playlist_result(self._extract_xspf_playlist(video_url, video_id), video_id)
             elif ext == 'm3u8':
-                entry_info_dict['formats'], entry_info_dict['subtitles'] = self._extract_m3u8_formats_and_subtitles(video_url, video_id, ext='mp4')
+                entry_info_dict['formats'], entry_info_dict['subtitles'] = self._extract_m3u8_formats_and_subtitles(video_url, video_id, ext='mp4', headers=headers)
             elif ext == 'mpd':
-                entry_info_dict['formats'], entry_info_dict['subtitles'] = self._extract_mpd_formats_and_subtitles(video_url, video_id)
+                entry_info_dict['formats'], entry_info_dict['subtitles'] = self._extract_mpd_formats_and_subtitles(video_url, video_id, headers=headers)
             elif ext == 'f4m':
-                entry_info_dict['formats'] = self._extract_f4m_formats(video_url, video_id)
+                entry_info_dict['formats'] = self._extract_f4m_formats(video_url, video_id, headers=headers)
             elif re.search(r'(?i)\.(?:ism|smil)/manifest', video_url) and video_url != url:
                 # Just matching .ism/manifest is not enough to be reliably sure
                 # whether it's actually an ISM manifest or some other streaming