将AVPlayer回放5秒-Java 学习之路

如何将流回放5秒？

这是我在viewDidLoad中的流媒体代码：

AVPlayerItem* playerItem = [AVPlayerItem playerItemWithURL:[NSURL URLWithString:@"http://groove.wavestreamer.com:7321/listen.pls?sid=1"]];

[playerItem addObserver:self forKeyPath:@"timedMetadata" options:NSKeyValueObservingOptionNew context:nil];

music = [[AVPlayer playerWithPlayerItem:playerItem] retain];
[music play]; 

music = [[AVPlayer playerWithPlayerItem:playerItem] retain];
[music play];

谢谢你的回答......

2 回答

- (NSTimeInterval)currentPlaybackTime
{
    return CMTimeGetSeconds(self.playerView.player.currentItem.currentTime);
}


- (void)setCurrentPlaybackTime:(NSTimeInterval)time
{
    CMTime cmTime = CMTimeMakeWithSeconds(time, NSEC_PER_SEC);
    [self.playerView.player.currentItem seekToTime:cmTime];
}


- (IBAction)scanBackward
{
    self.currentPlaybackTime -= 5.0f;
}

回复于 2024-05-03T13:20:12+08:00

在Swift 3中，

fileprivate let seekDuration: Float64 = 5


@IBAction func doForwardJump(_ sender: Any) {
    guard let duration  = player.currentItem?.duration else{
        return
    }
    let playerCurrentTime = CMTimeGetSeconds(player.currentTime())
    let newTime = playerCurrentTime + seekDuration

    if newTime < (CMTimeGetSeconds(duration) - seekDuration) {

        let time2: CMTime = CMTimeMake(Int64(newTime * 1000 as Float64), 1000)
        player.seek(to: time2, toleranceBefore: kCMTimeZero, toleranceAfter: kCMTimeZero)

    }
}
@IBAction func doBackwardJump(_ sender: Any) {

    let playerCurrentTime = CMTimeGetSeconds(player.currentTime())
    var newTime = playerCurrentTime - seekDuration

    if newTime < 0 {
        newTime = 0
    }
    let time2: CMTime = CMTimeMake(Int64(newTime * 1000 as Float64), 1000)
     player.seek(to: time2, toleranceBefore: kCMTimeZero, toleranceAfter: kCMTimeZero)


}

回复于 2024-05-03T13:20:12+08:00

将AVPlayer回放5秒

2 回答

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