Passing NSData Content To MPMoviePlayerController

In my application I'm using Files(.mp4) which are in encrypted format. These files are stored in the Documents Folder in my Application Sandbox. I've Decrypted these MP4 files & the resultant Decrypted by开发者_运维技巧tes are stored in an NSDATA obj. I wish to pass this NSData to MPMoviePlayerController without writing the NSDATA to a file. How do i go about achieving this?