Hi Leo,
How do I force user to add video title?
Currently this is not possible. The title of the video file will be used when uploading from the story form, unless the user decides to change it. For embedded videos, the title of the video will be used as the title.
How do I hide description if No description available?
This is also not possible unless you hack a core file.
How do I hive likes and comments?
Do you mean hiding them in the video entry page? If yes, you can template override the file
JoomlaFolder/components/com_easysocial/themes/wireframe/videos/item/default.php and remove the codes for likes and comments.
However, users can still like and comment on the video from the stream itself.