-            video_info = self._parse_json(video_info, video_id, transform_source=js_to_json)
-            quality = video_info['quality']
-            video_url = video_info['src']
+            video_info = self._parse_json(
+                video_info, video_id, transform_source=js_to_json, fatal=False)
+            if not video_info:
+                continue
+            video_url = video_info.get('src')
+            if not video_url:
+                continue
+            quality = 'high' if '_high' in video_url else 'low'