Though Google, Bing, and Yahoo! have all been supporting video schema markup for almost 6 years now, many companies still aren’t aware of its benefits. And that’s a shame! The use of on-page markup is one of the most powerful ways you have to assist the search engines in understanding what you’re offering on your video landing page in more detail.

Source: https://www.semrush.com/blog/how-to-use-video-schema-markup-on-your-video-pages/