Originally Posted by fris

for anyone who is intersted ;)

urls it matches



https?://(?:www\.)?(?:youtube\.com|youtu\.be|plus\.google\. com)/(?:watch\?v=|watch\?.+&v=|user/[^/]+?#p/\w/\w/\w/|v/|embed/(?:watch\?feature=player_embedded&v=)?|\+youtube/posts/|)((?:[\w-]{11}))

needed to intercept the wordpress oembed, to replace it with a custom html5 player that uses the youtube api, along with my own code to use animated youtube thumbnails.