The Video SEO plugin has an API to modify aspects of both its input and output.
This filters the output of the video embed recognition functionality. The
$vid array contains, at a minimum, either a
type. You’ll need to know the type to filter the output, but you could use this filter to, for instance, add a
Useful for setting the rating for videos.
Allows you to add extra content to the Video XML sitemap,
$str defaults to empty.
This filter is mainly useful if the input content needs to be modified, have stuff added, etc.