Video content, if embedded within your pages, can be indexed.
You can add descriptive data, like tags, a link, a title, or reviews, to an HTML page.
Embed the file within that page and the user can search and find the video and its related "contents".
The actual video file, the frames, are not crawled.
Common sources include YouTube, Vimeo, and other streaming services.
We recommend keeping users on your own pages, instead of directing them to the sources.