[vrv] extract adaptive_hls formats(closes #21243)

youtube_dl/extractor/vrv.py

@@ -130,7 +130,7 @@ class VRVIE(VRVBaseIE):
         self._TOKEN_SECRET = token_credentials['oauth_token_secret']
 
     def _extract_vrv_formats(self, url, video_id, stream_format, audio_lang, hardsub_lang):
-        if not url or stream_format not in ('hls', 'dash'):
+        if not url or stream_format not in ('hls', 'dash', 'adaptive_hls'):
             return []
         stream_id_list = []
         if audio_lang:
@@ -140,7 +140,7 @@ class VRVIE(VRVBaseIE):
         format_id = stream_format
         if stream_id_list:
             format_id += '-' + '-'.join(stream_id_list)
-        if stream_format == 'hls':
+        if 'hls' in stream_format:
             adaptive_formats = self._extract_m3u8_formats(
                 url, video_id, 'mp4', m3u8_id=format_id,
                 note='Downloading %s information' % format_id,