[dotsub] Support vimeo embed (closes #10964)

ChangeLog

@@ -4,6 +4,7 @@ Core
 * Running youtube-dl in the background is fixed (#10996, #10706, #955)
 
 Extractors
++ [dotsub] Support Vimeo embed (#10964)
 * [litv] Fix extraction
 
 

youtube_dl/extractor/dotsub.py

@@ -9,7 +9,7 @@
 
 class DotsubIE(InfoExtractor):
     _VALID_URL = r'https?://(?:www\.)?dotsub\.com/view/(?P<id>[^/]+)'
-    _TEST = {
+    _TESTS = [{
         'url': 'https://dotsub.com/view/9c63db2a-fa95-4838-8e6e-13deafe47f09',
         'md5': '21c7ff600f545358134fea762a6d42b6',
         'info_dict': {
@@ -24,7 +24,24 @@ class DotsubIE(InfoExtractor):
             'upload_date': '20131130',
             'view_count': int,
         }
-    }
+    }, {
+        'url': 'https://dotsub.com/view/747bcf58-bd59-45b7-8c8c-ac312d084ee6',
+        'md5': '2bb4a83896434d5c26be868c609429a3',
+        'info_dict': {
+            'id': '168006778',
+            'ext': 'mp4',
+            'title': 'Apartments and flats in Raipur the white symphony',
+            'description': 'md5:784d0639e6b7d1bc29530878508e38fe',
+            'thumbnail': 're:^https?://dotsub.com/media/747bcf58-bd59-45b7-8c8c-ac312d084ee6/p',
+            'duration': 290,
+            'timestamp': 1476767794.2809999,
+            'upload_date': '20160525',
+            'uploader': 'parthivi001',
+            'uploader_id': 'user52596202',
+            'view_count': int,
+        },
+        'add_ie': ['Vimeo'],
+    }]
 
     def _real_extract(self, url):
         video_id = self._match_id(url)
@@ -37,12 +54,23 @@ def _real_extract(self, url):
             webpage = self._download_webpage(url, video_id)
             video_url = self._search_regex(
                 [r'<source[^>]+src="([^"]+)"', r'"file"\s*:\s*\'([^\']+)'],
-                webpage, 'video url')
+                webpage, 'video url', default=None)
-
+            info_dict = {
-        return {
                 'id': video_id,
                 'url': video_url,
                 'ext': 'flv',
+            }
+
+        if not video_url:
+            setup_data = self._parse_json(self._html_search_regex(
+                r'(?s)data-setup=([\'"])(?P<content>(?!\1).+?)\1',
+                webpage, 'setup data', group='content'), video_id)
+            info_dict = {
+                '_type': 'url_transparent',
+                'url': setup_data['src'],
+            }
+
+        info_dict.update({
             'title': info['title'],
             'description': info.get('description'),
             'thumbnail': info.get('screenshotURI'),
@@ -50,4 +78,6 @@ def _real_extract(self, url):
             'uploader': info.get('user'),
             'timestamp': float_or_none(info.get('dateCreated'), 1000),
             'view_count': int_or_none(info.get('numberOfViews')),
-        }
+        })
+
+        return info_dict