Share the video which is in the page and not the page itself

Social share icons share a URL. If that is a video, it will be shared.

You can use following filter defined at line number 667 in the file wp-content/plugins/sassy-social-share/public/class-sassy-social-share-public.php to replace the URL of the web page being shared with the URL of the video in the page.

apply_filters( ‘heateor_sss_target_share_url_filter’, $post_url, $sharing_type, $standard_widget );