getImageFromVideo.swift

import AVFoundation

func getImageFromVideo(videoURL: String) -> UIImage? {
    do {
        let asset = AVURLAsset(URL: NSURL(fileURLWithPath: videoURL), options: nil)
        let imgGenerator = AVAssetImageGenerator(asset: asset)
        imgGenerator.appliesPreferredTrackTransform = true
        let cgImage = try imgGenerator.copyCGImageAtTime(CMTimeMake(0, 1), actualTime: nil)
        let image = UIImage(CGImage: cgImage)
        return image
    } catch {
        print(error)
        return nil
    }
}