Swift note about AVFoundation

Swfitnote.swift

// Get priview image for video
func previewImageFromVideo(_ url: URL) -> UIImage? {
    let asset = AVAsset(url: url)
    let imageGenerator = AVAssetImageGenerator(asset: asset)
    imageGenerator.appliesPreferredTrackTransform = true
    
    var time = asset.duration
    time.value = min(time.value, 2)
    
    do {
      let imageRef = try imageGenerator.copyCGImage(at: time, actualTime: nil)
      return UIImage(cgImage: imageRef)
    }
    catch let error as NSError
    {
      print("Error: previewImageFromVideo: \(error)")
      return nil
    }
}