[youtube] detect DRM protected videos(#1774)

diff --git a/youtube_dl/extractor/youtube.py b/youtube_dl/extractor/youtube.py
index 954853e009bfc2ec312a3d3ea95b5bec3ecdf112..4b06cb5971c32267288b3e5368e7591acdf7da63 100644 (file)
--- a/youtube_dl/extractor/youtube.py
+++ b/youtube_dl/extractor/youtube.py
@@ -1077,6 +1077,11 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
             'url': 'https://invidio.us/watch?v=BaW_jenozKc',
             'only_matching': True,
         },
+        {
+            # DRM protected
+            'url': 'https://www.youtube.com/watch?v=s7_qI6_mIXc',
+            'only_matching': True,
+        }
     ]
 
     def __init__(self, *args, **kwargs):
@@ -1673,6 +1678,9 @@ class YoutubeIE(YoutubeBaseInfoExtractor):
                     '"token" parameter not in video info for unknown reason',
                     video_id=video_id)
 
+        if video_info.get('license_info'):
+            raise ExtractorError('This video is DRM protected.', expected=True)
+
         video_details = try_get(
             player_response, lambda x: x['videoDetails'], dict) or {}