ios – 反向AVPlayer反向播放问题

let videoURL = Bundle.main.url(forResource: "video", withExtension: "mov")
videoPlayer = AVPlayer(url:videoURL!)
let playerLayer = AVPlayerLayer(player: videoPlayer)
playerLayer.frame = self.view.frame
videoView.layer.addSublayer(playerLayer)
videoPlayer.play()

我搜索并发现如果我将AVPlayer的速率更改为-1,则电影以反向模式播放：

func reverseVideo()  {

        videoPlayer.play()
        videoPlayer.rate = -1
    }

这确实工作正常,但反向播放包含很多滞后,它不能顺利播放,是否有任何可能的方法来解决这个问题.我在这里读过其他话题,但没有帮助.

let duration = (self.playeritem?.asset.duration)!
let durationSec = CMTimeGetSeconds((self.playeritem?.asset.duration)!)
self.avPlayer?.seek(to: duration, toleranceBefore: kCMTimeZero, toleranceAfter: kCMTimeZero)
self.avPlayer?.rate = -1