You want the user of your application to be able to edit videos straight from your application.

Use the UIVideoEditorController class. In this example, we will use this class in conjunction with an image picker controller. First we will ask the user to pick a video from her photo library. After she does, we will display an instance of the video editor controller and allow the user to edit the video she picked.

The UIVideoEditorController in the iOS SDK allows programmers to display a video editor interface to the users of their applications. All you have to do is to provide the URL of the video that needs to be edited and then present the video editor controller as a modal view. You should not overlay the view of this controller with any other views, and you should not modify this view.