Adsense ads for video are now beta
After some pilot testing Google have put Adsense for video in beta, opening them just for USA publishers. Adsense for video ad is not pure video ad, it’s embedded inside regular video, the InVideo ads are paid on a CPM basis, and text overlay ads are paid on a CPC basis. You can read more about this on Adsense blog.
You can watch video about new Adsense for video ad format here:

