This is the standard tube code for embedded video.
HTML Code:
<object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/_Y_kaYr4J04&hl=nl"></param><param name="wmode" value="transparent"></param><embed src="http://www.youtube.com/v/_Y_kaYr4J04&hl=nl" type="application/x-shockwave-flash" wmode="transparent" width="425" height="344"></embed></object>
So its not hard to make bbcode for YouTube or any other video website