Question

我正在尝试在我的macOS项目中播放视频，并且希望它不断循环播放。我能够让它播放一次，但是我不知道如何让它循环播放。我正在使用AVPlayerLooper，但似乎在某个地方弄乱了。这是我的代码：

import Cocoa
import AVKit
import AVFoundation

class ViewController: NSViewController {

    @IBOutlet weak var videoPlayer: AVPlayerView!

    override func viewDidLoad() {
        //var loop: AVPlayerLooper?

        super.viewDidLoad()

        guard let path = Bundle.main.path(forResource: "Background", ofType:"mp4") else {
            debugPrint("Not found")
            return
        }

        let asset = AVAsset(url: URL(fileURLWithPath: path))
        let item = AVPlayerItem(asset: asset)
        let queuePlayer = AVQueuePlayer(playerItem: item)
        let loop = AVPlayerLooper(player: queuePlayer, templateItem: item)
        videoPlayer.player = queuePlayer
        videoPlayer.player?.play()
    }
}

我的情节提要中也有一个AVPlayerView，它已连接到ViewController。

它可以构建并运行良好，但是当我运行它时，没有任何显示。我只是黑屏。

感谢您的帮助。谢谢！

Answer 1

AVPlayerLoop is sort of a "top level" object that manages both the player and the player item. So you have to keep it around, e.g. in a custom property of the view controller, or it will be released before it can really do anything
Since AVPlayerLoop manages the items in the AVQueuePlayer, initialize the queue player without passing in the player item

AVPlayerLooper没有循环播放本地视频

1 个答案: