support embedding video.

youtube_dl/YoutubeDL.py

@@ -867,6 +867,10 @@ class YoutubeDL(object):
                                      ie_key=ie_result.get('ie_key'),
                                      extra_info=extra_info)
         elif result_type == 'url_transparent':
+            if not self.params.get('download_embedded_video', True):
+                ie_result['embedded_url'] = ie_result['url']
+                return ie_result
+
             # Use the information from the embedding page
             info = self.extract_info(
                 ie_result['url'], ie_key=ie_result.get('ie_key'),

youtube_dl/extractor/odnoklassniki.py

@@ -252,14 +252,12 @@ class OdnoklassnikiIE(InfoExtractor):
         }
 
         if provider == 'USER_YOUTUBE':
-            """
             info.update({
                 '_type': 'url_transparent',
-                'url': movie['contentId'],
+                'url': 'https://www.youtube.com/watch?v=%s' % movie['contentId'],
             })
             return info
-            """
-            raise ExtractorError('This video is embedded from YouTube.', expected=True)
+
 
         assert title
         if 'LIVE_TV' in provider: