适用于youtube嵌入式视频的iOS 6.0+自动旋转

I want to only support vertical orientation throughout all the view controllers of my iOS app. However, I embed a YouTube video in one of my view controllers, and when that video is selected to take up the full screen, I want the user to be able to orient his/her phone horizontally so the video expands to take the full screen.I want to only support vertical orientation thr