-        title = video_info.find('.//title').text
-        extension = video_info.find('.//movie_type').text
-        video_format = extension.upper()
-        thumbnail = video_info.find('.//thumbnail_url').text
-        description = video_info.find('.//description').text
-        upload_date = unified_strdate(video_info.find('.//first_retrieve').text.split('+')[0])
-        view_count = int_or_none(video_info.find('.//view_counter').text)
-        comment_count = int_or_none(video_info.find('.//comment_num').text)
-        duration = parse_duration(video_info.find('.//length').text)
-        webpage_url = video_info.find('.//watch_url').text
-
-        if video_info.find('.//ch_id') is not None:
-            uploader_id = video_info.find('.//ch_id').text
-            uploader = video_info.find('.//ch_name').text
-        elif video_info.find('.//user_id') is not None:
-            uploader_id = video_info.find('.//user_id').text
-            uploader = video_info.find('.//user_nickname').text
-        else:
-            uploader_id = uploader = None
+        title = get_video_info('title')
+        if not title:
+            title = self._og_search_title(webpage, default=None)
+        if not title:
+            title = self._html_search_regex(
+                r'<span[^>]+class="videoHeaderTitle"[^>]*>([^<]+)</span>',
+                webpage, 'video title')
+
+        watch_api_data_string = self._html_search_regex(
+            r'<div[^>]+id="watchAPIDataContainer"[^>]+>([^<]+)</div>',
+            webpage, 'watch api data', default=None)
+        watch_api_data = self._parse_json(watch_api_data_string, video_id) if watch_api_data_string else {}
+        video_detail = watch_api_data.get('videoDetail', {})
+
+        thumbnail = (
+            get_video_info(['thumbnail_url', 'thumbnailURL']) or
+            self._html_search_meta('image', webpage, 'thumbnail', default=None) or
+            video_detail.get('thumbnail'))
+
+        description = get_video_info('description')
+
+        timestamp = (parse_iso8601(get_video_info('first_retrieve')) or
+                     unified_timestamp(get_video_info('postedDateTime')))
+        if not timestamp:
+            match = self._html_search_meta('datePublished', webpage, 'date published', default=None)
+            if match:
+                timestamp = parse_iso8601(match.replace('+', ':00+'))
+        if not timestamp and video_detail.get('postedAt'):
+            timestamp = parse_iso8601(
+                video_detail['postedAt'].replace('/', '-'),
+                delimiter=' ', timezone=datetime.timedelta(hours=9))
+
+        view_count = int_or_none(get_video_info(['view_counter', 'viewCount']))
+        if not view_count:
+            match = self._html_search_regex(
+                r'>Views: <strong[^>]*>([^<]+)</strong>',
+                webpage, 'view count', default=None)
+            if match:
+                view_count = int_or_none(match.replace(',', ''))
+        view_count = view_count or video_detail.get('viewCount')
+
+        comment_count = (int_or_none(get_video_info('comment_num')) or
+                         video_detail.get('commentCount') or
+                         try_get(api_data, lambda x: x['thread']['commentCount']))
+        if not comment_count:
+            match = self._html_search_regex(
+                r'>Comments: <strong[^>]*>([^<]+)</strong>',
+                webpage, 'comment count', default=None)
+            if match:
+                comment_count = int_or_none(match.replace(',', ''))
+
+        duration = (parse_duration(
+            get_video_info('length') or
+            self._html_search_meta(
+                'video:duration', webpage, 'video duration', default=None)) or
+            video_detail.get('length') or
+            get_video_info('duration'))
+
+        webpage_url = get_video_info('watch_url') or url
+
+        # Note: cannot use api_data.get('owner', {}) because owner may be set to "null"
+        # in the JSON, which will cause None to be returned instead of {}.
+        owner = try_get(api_data, lambda x: x.get('owner'), dict) or {}
+        uploader_id = get_video_info(['ch_id', 'user_id']) or owner.get('id')
+        uploader = get_video_info(['ch_name', 'user_nickname']) or owner.get('nickname')