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ios - AVPlayer 向后搜索时不更新 currentPlaybackTime

转载 作者:可可西里 更新时间:2023-11-01 03:57:49 25 4
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我有一个 NSTimer 设置,每 0.1 秒触发一次,在回调中我获取 currentTime() 并使用它来更新带有视频持续时间的标签。

当我向前寻找时,通过将 rate 设置为 3,此计时器会保持同步,但是当我将 rate 设置为 -3 时,视频会保持同步,但 currentTime( ) 仍然返回与我开始搜索时相同的值。这种情况会发生,直到我停止寻找然后 currentTime() 返回正确的时间

我如何获取视频的当前时间,这在向后搜索时会起作用?

编辑:这是我使用的代码(从 Xamarin C# 翻译而来):

class VideoPlayer: UIView {

var player: AVPlayer!
var wasPaused: Bool!

func play(url: String) {
// set the URL to the Video Player
let streamingURL: NSURL = NSURL(string: url)!
player = AVPlayer(URL: streamingURL)
let playerLayer = AVPlayerLayer(layer: player)
layer.insertSublayer(playerLayer, atIndex: 0)

// Reset the state
player.seekToTime(CMTime(seconds: 0, preferredTimescale: 600))

// Start a timer to move the scrub label
NSTimer(timeInterval: 0.1, target: self, selector: #selector(playbackTimeUpdated), userInfo: nil, repeats: true)
}

func playbackTimeUpdated() {
// This one is not correct when seeking backwards
let time = player.currentTime().seconds;

// Use the time to adjust a UIProgressView
}

// Gets called when the reverse button is released
func reverseTouchUp() {
player.rate = 1
}

// Gets called when the reverse button is pressed
func reverseTouchDown()
{
player.rate = -3;
}
}

最佳答案

尝试使用 CMTimeGetSeconds(player.currentTime()) 而不是 player.currentTime().seconds。它对我有用。

还要检查你的计时器是否真的在运行(例如向它添加 NSLog 调用),也许你只是阻塞了它的线程。

关于ios - AVPlayer 向后搜索时不更新 currentPlaybackTime,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/38740752/

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