go to the video.
If it were youtube, then:
take url, for example:
http://www.youtube.com/watch?v=LQwqogQ6Jmc
Since youtube has an embeding feature,
take away the watch?v= and replace it with: embed/
Them, put a ? at the end.
Then, use the embeding function. So,
http://www.youtube.com/watch?v=LQwqogQ6Jmc
would turn into
<iframe width="640" height="360" src="http://www.youtube.com/embed/LQwqogQ6Jmc?feature=player_detailpage" frameborder="0" allowfullscreen></iframe>