The Video SEO plugin has an API to modify aspects of both its input and output.
Output
wpseo_video_type_details
Argument: $vid (array)
This filters the output of the video embed recognition functionality. The $vid array contains, at a minimum, either a player_loc or content_loc, a thumbnail_loc and type. You’ll need to know the type to filter the output, but you could use this filter to, for instance, add a duration.
wpseo_video_family_friendly
Argument: $family-friendly (bool), $ID (int)
wpseo_video_rating
Argument: $rating (bool), $ID (int)
Useful for setting the rating for videos.
wpseo_video_item
Argument: $str (bool), $ID (int)
Allows you to add extra content to the Video XML sitemap, $str defaults to empty.
Input
wpseo_video_index_content
Arguments: $content (string), $vid (array)
This filter is mainly useful if the input content needs to be modified, have stuff added, etc.
