如何在Swift 4中获取AVPlayer项目的总持续时间

import AVFoundation

func getDurationOfAVPlayerItem() {
    let url = URL(fileURLWithPath: "path_to_your_video_file")
    let asset = AVURLAsset(url: url)
    let playerItem = AVPlayerItem(asset: asset)
    
    let duration = playerItem.duration
    let totalSeconds = CMTimeGetSeconds(duration)
    
    let hours = Int(totalSeconds / 3600)
    let minutes = Int(totalSeconds.truncatingRemainder(dividingBy: 3600) / 60)
    let seconds = Int(totalSeconds.truncatingRemainder(dividingBy: 60))
    
    print("Total duration: \(hours)h \(minutes)m \(seconds)s")
}