First frame of a video using AVFoundation

Question

I\'m trying to get the first frame of a video using the classes in AVFoundation. But it appears to not be getting an image at all.

My code currently looks like this

Answer 1

Doing this in Swift 4.0:

            // Assumes you have a local `fileURL`

            var avAsset = AVURLAsset(url: fileURL, options: nil)
            var imageGenerator = AVAssetImageGenerator(asset: avAsset)
            imageGenerator.appliesPreferredTrackTransform = true
            var thumbnail: UIImage?

            do {
                thumbnail = try UIImage(cgImage: imageGenerator.copyCGImage(at: CMTime(seconds: 0, preferredTimescale: 1), actualTime: nil))
            } catch let e as NSError {
                print("Error: \(e.localizedDescription)")
            }