倒带时 AVPlayer 当前时间错误

Question

我有AVPlayer，当我倒回音频文件时，当前时间比总文件持续时间长。谁知道问题出在哪里，为什么当前时间不对？

@objc func updateProgressBar(){
    guard let value = AppDelegate.avPlayer.currentItem?.currentTime().seconds else { return }
    let time = Func.getHoursMinutesSecondsFrom(seconds: value)
    DispatchQueue.main.async {
        self.startTime.text = time.fullTime
    }
}


func durationAudio(){
    // расчитывает время аудиозвука
    guard let duration = AppDelegate.avPlayer.currentItem?.asset.duration else { return }
    let time = Func.getHoursMinutesSecondsFrom(seconds: CMTimeGetSeconds(duration))
    DispatchQueue.main.async {
        self.endTime.text = time.fullTime
    }
}

转换为小时、分钟、秒

static func getHoursMinutesSecondsFrom(seconds: Double) -> (hours: Int, minutes: Int, seconds: Int, fullTime:String) {
    let secs = Int(seconds)
    let hours = secs / 3600
    let minutes = (secs % 3600) / 60
    let seconds = (secs % 3600) % 60
    let duration:String!
    if hours != 0 {
        duration = String(format:"%02d:%02d:%02d", hours, minutes, seconds)
    } else {
        duration = String(format:"%02d:%02d", minutes, seconds)
    }
    return (hours, minutes, seconds, duration)
}

快退音频

func seekTo(completion:Bool){
    let duration = CMTimeGetSeconds(AppDelegate.avPlayer.currentItem!.asset.duration)
    let value = self.sliderSong.value
    let durationToSeek = Float(duration) * value
    let timeScale = AppDelegate.avPlayer.currentItem!.duration.timescale
    AppDelegate.avPlayer.seek(to: CMTimeMakeWithSeconds(Float64(durationToSeek), preferredTimescale: timeScale), toleranceBefore: CMTime.zero, toleranceAfter: CMTime.zero) { [weak self](bool) in
        guard completion else { return }
        self?.seeking = false
    }
}

Answer 1

您可以使用以下代码顺利寻找玩家：

@objc func sliderValueChanged(_ sender: UISlider) {
    self.seekAudio(to: sender.value) // seek Player
}

func seekAudio(to newValue: Float) {
    guard let player = self.player,
          let currentItem = player.currentItem,
          currentItem.status == .readyToPlay else {
        print("Player or current item not ready.")
        return
    }
    
    let duration = currentItem.duration.seconds
    guard duration.isFinite else {
        return
    }
    
    let newPosition = duration * Double(newValue)
    let seekTime = CMTime(seconds: newPosition, preferredTimescale: 600)
    
    player.seek(to: seekTime, toleranceBefore: .zero, toleranceAfter: .zero) { completed in
        if completed {
            //print("Seek operation completed successfully.")
        } else {
            //print("Seek operation was not completed successfully.")
        }
    }
}