HLS音频流后台超时恢复播放失败(AVPlayer拒绝缓冲)

import AVFoundation

class HLSPlayerViewController: UIViewController {
    var player: AVPlayer?
    var playerLayer: AVPlayerLayer?

    override func viewDidLoad() {
        super.viewDidLoad()
        
        guard let url = URL(string: "https://example.com/path/to/your/stream.m3u8") else { return }
        
        let playerItem = AVPlayerItem(url: url)
        player = AVPlayer(playerItem: playerItem)
        playerLayer = AVPlayerLayer(player: player)
        playerLayer?.frame = view.bounds
        view.layer.addSublayer(playerLayer!)
        
        player?.play()
        
        // 监听缓冲状态
        NotificationCenter.default.addObserver(self, selector: #selector(playerItemDidPlayToEndTime), name: .AVPlayerItemDidPlayToEndTime, object: playerItem)
    }
    
    @objc func playerItemDidPlayToEndTime(notification: Notification) {
        if let playerItem = notification.object as? AVPlayerItem {
            playerItem.seek(to: .zero, completionHandler: { [weak self] _ in
                self?.player?.play()
            })
        }
    }
    
    deinit {
        NotificationCenter.default.removeObserver(self)
    }
}