标签: avplayerlayer

目前,这就是我在UIViewController的子视图中播放视频的方式:

override func viewDidAppear(animated: Bool)  {
    let filePath = NSBundle.mainBundle().pathForResource("musicvideo", ofType: "mp4")
    self.moviePlayerController.contentURL = NSURL.fileURLWithPath(filePath)
    self.moviePlayerController.play()
    self.moviePlayerController.repeatMode = .One
    self.moviePlayerController.view.frame = self.view.bounds
    self.moviePlayerController.scalingMode = .AspectFill
    self.moviePlayerController.controlStyle = .None
    self.moviePlayerController.allowsAirPlay = false
    self.view.addSubview(self.moviePlayerController.view)
}

我已经通过以下方式阅读了关于禁用音频的方法(根本没有工作).请记住,我正在尝试禁用它,以便不通过音乐应用程序,Spotify等中断当前播放的音乐.

// Playing media items with the applicationMusicPlayer will restore the user's Music state after the application quits.

// The current volume of playing music, in the range of 0.0 to 1.0.
// This property is deprecated -- use MPVolumeView for volume control instead.

1) MPMusicPlayerController.applicationMusicPlayer().volume = …

当AVPlayer到达视频末尾时(对于HTTP直播流),最后一帧会拉伸以填充视图.我如何解决这种拉伸？例如,考虑视频是以纵向模式录制的.在较小的视图中,视频将被加框(带有黑色边框).这很好,直到玩家到达流的末尾.最后一帧然后伸展以填充视图,直到播放器重新启动.

关于如何阻止这种情况发生的任何想法？

编辑:请参阅下面的答案.如果有人对什么是体面的解决方案有任何建议,我仍然愿意为此奖励赏金.

我正在开发一个iOS应用程序,该应用程序可以创建用户池提交的所有视频的源,使用户能够浏览和查看其他人创建的视频.您可以想象,我需要能够在Feed中支持任意数量的视频.

目前,我正在为每个视频创建并保留一个AVPlayer实例,如下所示:

//inside the init method of a UIView

//create the AVPlayer and store it in a strong property
NSString * urlString = @"aRemoteURL.mov";
NSURL * movURL = [NSURL URLWithString:urlString];
_videoPlayer = [[AVPlayer alloc]initWithURL:movURL];

//register callbacks for handling buffering
[_videoPlayer.currentItem addObserver:self forKeyPath:@"playbackBufferEmpty" options:NSKeyValueObservingOptionNew context:nil];
[_videoPlayer.currentItem addObserver:self forKeyPath:@"playbackLikelyToKeepUp" options:NSKeyValueObservingOptionNew context:nil];

//add the AVPlayerLayer to the view so you can see the video
AVPlayerLayer * playerLayer = [AVPlayerLayer playerLayerWithPlayer:_videoPlayer];
playerLayer.frame = self.frame;
[self.layer addSublayer:playerLayer];

当用户点击play它_videoPlayer时我会打电话UIView,一切都很完美.也就是说,直到有足够的视频提交给Feed ... …

我正在编写一个应用程序,需要根据用户的选择显示不同的视频.当用户选择视频时,将调用playVideo功能.视频播放完毕后,视频将再次隐藏.

我的代码如下:

var player: AVPlayer?


  func playVideo(String: videoFile) {
    self.videoView.isHidden = false
    let videoURL: NSURL = Bundle.main.url(forResource: videoFile, withExtension: "mp4")! as NSURL
    self.player = AVPlayer(url: videoURL as URL)
    let playerLayer = AVPlayerLayer(player: player)
    playerLayer.frame = self.videoView.frame
    self.videoView.layer.addSublayer(playerLayer)
    let duration : Int64 = 0
    let preferredTimeScale : Int32 = 1
    let seekTime : CMTime = CMTimeMake(duration, preferredTimeScale)
    self.player?.seek(to: seekTime)
    self.player?.play()

    NotificationCenter.default.addObserver(self, selector: #selector(self.playerItemDidReachEnd), name: NSNotification.Name.AVPlayerItemDidPlayToEndTime, object: player?.currentItem)
  }

@objc func playerItemDidReachEnd()
  {
    self.player?.pause()
    self.videoView.isHidden = true
    NotificationCenter.default.removeObserver(self)
  }

但是,根据上面的代码,我有几个问题:

1. 如何优雅地删除/取消分配播放器？如果只使用我当前的代码,它会占用大量内存吗？

2. 每当用户按下按钮时,将调用playVideo功能,并创建并播放相应的播放器.这是正确的方法吗？有没有其他方法或更有效的方式或优雅的方式这样做？ …

在Xcode中使用AVPlayer可以帮助我设置和播放本地视频文件的代码吗？(使用AVPlayerLayer和AVPlayerViewController)所有以编程方式完成并使用标准/系统视频？

关心亨宁

我正在使用 Swift 编写一个应用程序，以通过 HLS 查看监控摄像头。我有基本的设备列表工作，我能够转至实时视图并显示流，但是，我需要移动 AVPlayerLayer，但我无法弄清楚这一点。这是我当前的代码：

    let player = AVPlayer(URL: url!)
    let playerLayer = AVPlayerLayer(player: player)
    let view = UIView(frame: CGRectMake(0, 0, screenSize.width, screenSize.height))

    self.view.layer.borderWidth = 1
    self.view.layer.borderColor = UIColor(red:222/255.0, green:225/255.0, blue:227/255.0, alpha: 1.0).CGColor
    self.view.layer.addSublayer(playerLayer)

    playerLayer.frame = view.bounds
    player.play()

我希望将 AVPlayerLayer 放置在顶部下方 50 点处，因为每个视图场景都有一个标题。

谢谢！

我正在开发一个录制视频的应用程序.录制结束后,我使用图书馆将GIF图像放在上面 .

我的代码用于播放视频和将gif图像作为叠加层

    self.avPlayer = [AVPlayer playerWithURL:self.urlstring];
    self.avPlayer.actionAtItemEnd = AVPlayerActionAtItemEndNone;

    AVPlayerLayer *videoLayer = [AVPlayerLayer playerLayerWithPlayer:self.avPlayer];
    videoLayer.frame = self.preview_view.bounds;
    videoLayer.videoGravity = AVLayerVideoGravityResizeAspectFill;

    [self.preview_view.layer addSublayer:videoLayer];


    NSURL *url = [[NSBundle mainBundle] URLForResource:@"02" withExtension:@"gif"];
    self.img_gif.image = [UIImage animatedImageWithAnimatedGIFData:[NSData dataWithContentsOfURL:url]];

但现在我想合并并保存带有此GIF图像叠加的视频.我谷歌它没找到我想要的东西.

谢谢您的帮助

我正在使用Swift 3在iOS应用程序上工作,我在后台播放视频.我的代码完全正常,直到随机出现错误信息:

类型AVLayerVideoGravityaka(NSString)没有成员resizeAspectFill

出现.我无法弄清楚为什么resizeAspectFill不再被识别.有什么我想念的吗？我已经尝试过清理我的项目,但这并没有解决任何问题.任何帮助将不胜感激:)下面是代码:

import Foundation
import AVFoundation
import UIKit

class HomeViewController: UIViewController {
// MARK: Properties
var avPlayer: AVPlayer!
var avPlayerLayer: AVPlayerLayer!
var paused: Bool = false

var enterButton: UIButton! = UIButton()

override func viewDidLoad() {
    super.viewDidLoad()
    self.title = "Welcome"

    let theURL = Bundle.main.url(forResource:"hannah", withExtension: "mp4")

    avPlayer = AVPlayer(url: theURL!)
    avPlayerLayer = AVPlayerLayer(player: avPlayer)
    avPlayerLayer.videoGravity = AVLayerVideoGravity.resizeAspectFill

    avPlayer.volume = 0
    avPlayer.actionAtItemEnd = .none

    avPlayerLayer.frame = view.layer.bounds
    view.backgroundColor = .clear
    view.layer.insertSublayer(avPlayerLayer, at: 0)

    NotificationCenter.default.addObserver(self,
                                           selector: …

让AVPlayer视频内容显示在一个视图中的诀窍是什么？

我们使用以下AVPlayer代码,但屏幕上没有显示任何内容.我们知道视频在那里,因为我们能够使用MPMoviePlayerController显示它.

这是我们使用的代码:

AVAsset *asset = [AVAsset assetWithURL:videoTempURL];
AVPlayerItem *item = [[AVPlayerItem alloc] initWithAsset:asset];
AVPlayer *player = [[AVPlayer alloc] initWithPlayerItem:item];
player.actionAtItemEnd = AVPlayerActionAtItemEndNone;
AVPlayerLayer *layer = [AVPlayerLayer playerLayerWithPlayer:player];
// layer.frame = self.view.frame;
[self.view.layer addSublayer:layer];
layer.backgroundColor = [UIColor clearColor].CGColor;
//layer.backgroundColor = [UIColor greenColor].CGColor;
[layer setVideoGravity:AVLayerVideoGravityResizeAspectFill];
[player play];

我们是否为当前视图设置了不正确的图层？

我正在尝试在设备旋转后始终全屏显示 AVPlayer 视频。这是我的完整代码。我不明白为什么视频没有调整大小。即使我使用像 layerClass 这样的子类。设备旋转后，视频视图被剪切，我看不到完整的视频。如果有人有想法。提前致谢。

import UIKit
import AVKit
import AVFoundation

class ViewController: UIViewController {

    var player: AVPlayer?
    var videoView: VideoContainerView!
    var playerLayer: AVPlayerLayer!

    override func viewDidLoad() {
        super.viewDidLoad()

        self.videoView = VideoContainerView()
        self.videoView.frame = self.view.bounds
        self.videoView.autoresizingMask = [.flexibleWidth, .flexibleHeight]

        let path = Bundle.main.path(forResource: "GAVIDEO", ofType: "mp4")
        self.player = AVPlayer(url: NSURL(fileURLWithPath: path!) as URL)
        self.player?.isMuted = true

        self.playerLayer = AVPlayerLayer(player: self.player)
        self.playerLayer.frame = self.videoView.bounds
        self.playerLayer.videoGravity = AVLayerVideoGravity.resizeAspectFill

        self.videoView.layer.addSublayer(playerLayer)

        self.videoView.layer.masksToBounds = true

        self.view.addSubview(self.videoView)

        self.player?.play()
    }

    override func viewWillTransition(to size: CGSize, with coordinator: …