[generic] Generalize BBC iPlayer playlist extraction

youtube_dl/extractor/generic.py

@@ -908,7 +908,7 @@ class GenericIE(InfoExtractor):
         # Look for BBC iPlayer embed
         matches = re.findall(r'setPlaylist\("(https?://www\.bbc\.co\.uk/iplayer/[^/]+/[\da-z]{8})"\)', webpage)
         if matches:
-            return self.playlist_result([self.url_result(video_url, ie='BBCCoUk') for video_url in matches])
+            return _playlist_from_matches(matches, ie='BBCCoUk')
 
         # Look for embedded RUTV player
         rutv_url = RUTVIE._extract_url(webpage)