How to Mirror(Flip) Video playing using AVPlayer?

I want to Mirror (Flip) video playing using AVPlayer. Like : MirrorTube :- https://chrome.google.com/webstore/detail/mirrortube/olomckflnlligkboahmaihmeaffjdbfm/related?hl=en

i want to achieve same functionality.

I have tried to change CGAffineTransform but it does not work same.

Thanks in advance!

Here's an example how to flip the player vertically and horizontally by using CGAffineTransform:

PlayerView:

import AVKit

class PlayerView: UIView {
    var player: AVPlayer? {
        get {
            return playerLayer.player
        }
        set {
            playerLayer.player = newValue
        }
    }

    var playerLayer: AVPlayerLayer {
        return layer as! AVPlayerLayer
    }

    // Override UIView property
    override static var layerClass: AnyClass {
        return AVPlayerLayer.self
    }
}

ViewController using the playerView defined in xib/storyboard:

@IBOutlet var playerView: PlayerView!

@IBAction func flipVerticallyBarButtonItemTouched(_ sender: UIBarButtonItem) {
           UIView.animate(withDuration: 0.2) { [unowned self] in
               self.playerView.transform = self.playerView.transform.concatenating(CGAffineTransform(scaleX: 1, y: -1))
           }
       }
@IBAction func flipHorizontallyBarButtonItemTouched(_ sender: UIBarButtonItem) {
           UIView.animate(withDuration: 0.2) { [unowned self] in
            self.playerView.transform = self.playerView.transform.concatenating(CGAffineTransform(scaleX: -1, y: 1))
           }
}