[twitch] Pass video id to url_result when extracting playlist

youtube_dl/extractor/twitch.py

@@ -358,9 +358,16 @@ class TwitchPlaylistBaseIE(TwitchBaseIE):
                 break
             offset += limit
         return self.playlist_result(
-            [self.url_result(entry) for entry in orderedSet(entries)],
+            [self._make_url_result(entry) for entry in orderedSet(entries)],
             channel_id, channel_name)
 
+    def _make_url_result(self, url):
+        try:
+            video_id = 'v%s' % TwitchVodIE._match_id(url)
+            return self.url_result(url, TwitchVodIE.ie_key(), video_id=video_id)
+        except AssertionError:
+            return self.url_result(url)
+
     def _extract_playlist_page(self, response):
         videos = response.get('videos')
         return [video['url'] for video in videos] if videos else []