+    def _real_extract(self, url):
+        video_id = self._match_id(url)
+        # to get Referer url for genvisitor
+        webpage, urlh = self._download_webpage_handle(url, video_id)
+
+        visitor_url = urlh.geturl()
+
+        if 'passport.weibo.com' in visitor_url:
+            # first visit
+            visitor_data = self._download_json(
+                'https://passport.weibo.com/visitor/genvisitor', video_id,
+                note='Generating first-visit data',
+                transform_source=strip_jsonp,
+                headers={'Referer': visitor_url},
+                data=urlencode_postdata({
+                    'cb': 'gen_callback',
+                    'fp': json.dumps({
+                        'os': '2',
+                        'browser': 'Gecko57,0,0,0',
+                        'fonts': 'undefined',
+                        'screenInfo': '1440*900*24',
+                        'plugins': '',
+                    }),
+                }))
+
+            tid = visitor_data['data']['tid']
+            cnfd = '%03d' % visitor_data['data']['confidence']
+
+            self._download_webpage(
+                'https://passport.weibo.com/visitor/visitor', video_id,
+                note='Running first-visit callback',
+                query={
+                    'a': 'incarnate',
+                    't': tid,
+                    'w': 2,
+                    'c': cnfd,
+                    'cb': 'cross_domain',
+                    'from': 'weibo',
+                    '_rand': random.random(),
+                })
+
+            webpage = self._download_webpage(
+                url, video_id, note='Revisiting webpage')
+
+        title = self._html_search_regex(
+            r'<title>(.+?)</title>', webpage, 'title')
+
+        video_formats = compat_parse_qs(self._search_regex(
+            r'video-sources=\\\"(.+?)\"', webpage, 'video_sources'))
+
+        formats = []
+        supported_resolutions = (480, 720)
+        for res in supported_resolutions:
+            vid_urls = video_formats.get(compat_str(res))
+            if not vid_urls or not isinstance(vid_urls, list):
+                continue
+
+            vid_url = vid_urls[0]
+            formats.append({
+                'url': vid_url,
+                'height': res,
+            })
+
+        self._sort_formats(formats)
+
+        uploader = self._og_search_property(
+            'nick-name', webpage, 'uploader', default=None)
+
+        return {
+            'id': video_id,
+            'title': title,
+            'uploader': uploader,
+            'formats': formats
+        }
+
+
+class WeiboMobileIE(InfoExtractor):
+    _VALID_URL = r'https?://m\.weibo\.cn/status/(?P<id>[0-9]+)(\?.+)?'
+    _TEST = {
+        'url': 'https://m.weibo.cn/status/4189191225395228?wm=3333_2001&sourcetype=weixin&featurecode=newtitle&from=singlemessage&isappinstalled=0',
+        'info_dict': {
+            'id': '4189191225395228',
+            'ext': 'mp4',
+            'title': '午睡当然是要甜甜蜜蜜的啦',
+            'uploader': '柴犬柴犬'
+        }
+    }