I just decided to make a new addon for this really quick because searching got boring, it is the same as the one for King kovifors bbcode manager and if you install this you must uninstall or upgrade the original
xxmP addon with this addon and continue to use the bbcodes for KingK's BBcode manager with that if you like. It will work with both BBCM and the XF BBcode media site systems and uses the same core files. Playback currently supports mp4, m4v and flv.
Instructions:
Extract & Upload - the contents of the xxmP.1.0.0.b.zip archive and upload the
contents of the UPLOAD folder to your xenforo installations root.
Install from the addon-xxmP.xml
your done.