How to detect if a video file was recorded in portrait orientation, or landscape in iOS

Question

I am using AlAssetsGroup enumerateAssetsAtIndexes to list the assets in the Photos (Camera) app. For a given video asset I want to determine whether it was shot

Answer 1

While several of the answers here are correct, they are not comprehensive. For instance, you may also need to know which camera device was used to apply the proper transforms. I created a gist to do this very thing; extract the UIInterfaceOrientation and the AVCaptureDevicePosition.

Extract AVAsset Orientation and Camera Position