Fixed video streaming

mod_video_downloader.py

@@ -394,7 +394,8 @@ async def mod_new_message(session, event) -> None:
                     attributes=[DocumentAttributeVideo(
                         duration=video_data['duration'],
                         w=video_data['width'],
-                        h=video_data['height']
+                        h=video_data['height'],
+                        supports_streaming=True
                     )]
                 )
             except: