I have a video URL like http://www.youtube.com/watch?v=AAAAAAAAAA
How can I get a RTSP URL for this video?
Answer
EDIT: Seems like Youtube stopped supporting this method.
Go to: http://gdata.youtube.com/feeds/api/videos/{video-id}
For example: If we want to get the RTSP link for this video: https://www.youtube.com/watch?v=rUDm2xatms4&list=PLA9nd26sR8HD62LClHOBU93tuDKnJsfKa&feature=player_detailpage#t=0
We'd use: http://gdata.youtube.com/feeds/api/videos/rUDm2xatms4
This will download an XML file for you. In there search for 'rtsp' and you'll get the full link.
Hope this helps.