Ios 如何使用AVPlayerLooper循环视频
我尝试使用Ios 如何使用AVPlayerLooper循环视频,ios,swift,video,tvos,Ios,Swift,Video,Tvos,我尝试使用AVPlayerLooper在电视操作系统应用程序中循环视频,因为这样可以消除再次播放视频时的暂停/中断。我观看了WWDC2016视频并尝试实现代码,但它没有循环。 我有一个playervewcontroller,它继承了avplayervewcontroller。我把代码放在视频循环中。如果我有下面的代码,它什么也不显示。如果我将第二行更改为self.queuePlayer=AVQueuePlayer(playerItem:playerItem),它只播放一次 let playe
AVPlayerLooper
在电视操作系统应用程序中循环视频,因为这样可以消除再次播放视频时的暂停/中断。我观看了WWDC2016
视频并尝试实现代码,但它没有循环。
我有一个playervewcontroller
,它继承了avplayervewcontroller
。我把代码放在视频循环中。如果我有下面的代码,它什么也不显示。如果我将第二行更改为self.queuePlayer=AVQueuePlayer(playerItem:playerItem)
,它只播放一次
let playerItem = AVPlayerItem(url: url as URL)
self.queuePlayer = AVQueuePlayer() //I declared this as a variable in the view controller
self.playerLayer = AVPlayerLayer(player: self.queuePlayer) //I declared this as a variable in the view controller
let playerLooper = AVPlayerLooper(player: self.queuePlayer!, templateItem: playerItem)
self.view.layer.addSublayer(self.playerLayer!)
self.playerLayer?.frame = self.view.frame
self.queuePlayer?.play()
你们中有人用最新的
AVPlayerLooper
成功播放循环视频吗?我自己解决了这个问题
playerLooper必须是类中的成员变量,否则它将无法工作,因为在调用该方法后,局部变量将消失。所以我把这一行放在类的开头来声明它。我没有将它声明为AVPlayerLooper,因为它仅适用于tvos10.0及更新版本。我希望我的班级能够适应tvos9.0。
这是我的工作代码
var playerLooper: NSObject?
var playerLayer:AVPlayerLayer!
var queuePlayer: AVQueuePlayer?
func playVideo(_ filmName: String){
if let path = Bundle.main.path(forResource: filmName, ofType: "mov") {
let url = URL(fileURLWithPath: path)
if #available(tvOS 10.0, *) {
// Use a new player looper with the queue player and template item
let playerItem = AVPlayerItem(url: url as URL)
self.player = AVQueuePlayer(items: [playerItem])
self.playerLayer = AVPlayerLayer(player: self.player)
self.playerLooper = AVPlayerLooper(player: self.player! as! AVQueuePlayer, templateItem: playerItem)
self.view.layer.addSublayer(self.playerLayer!)
self.playerLayer?.frame = self.view.frame
self.player?.play()
} else {
// Fallback on earlier versions, this solution has hicup at end
player = AVPlayer(url: url)
player?.play()
loopVideo(player!)
}
}
}
func loopVideo(_ videoPlayer: AVPlayer) {
NotificationCenter.default.addObserver(forName: NSNotification.Name.AVPlayerItemDidPlayToEndTime, object: nil, queue: nil) { notification in
if(!self.isStopped){
videoPlayer.seek(to: kCMTimeZero)
videoPlayer.play()
}
}
}
Objective-C版本:
@implementation ViewController
{
// As explained in accepted answer, the playerLooper must be a
// member (I put everything as member for simplicity):
AVPlayerItem *_playerItem;
AVQueuePlayer *_player;
AVPlayerLooper *_playerLooper;
AVPlayerLayer *_playerLayer;
}
- (void)viewDidLoad {
[super viewDidLoad];
// ...
NSString *videoFile = [[NSBundle mainBundle] pathForResource:@"example" ofType:@"mov"];
NSURL *videoURL = [NSURL fileURLWithPath:videoFile];
_playerItem = [AVPlayerItem playerItemWithURL:videoURL];
_player = [AVQueuePlayer queuePlayerWithItems:@[_playerItem]];
_playerLooper = [AVPlayerLooper playerLooperWithPlayer:_player templateItem:_playerItem];
_playerLayer = [AVPlayerLayer playerLayerWithPlayer:_player];
_playerLayer.frame = self.view.bounds;
[self.view.layer addSublayer:_playerLayer];
[_player play];
}
Swift 5自定义类,用于播放无任何故障的循环视频
import Foundation
import AVKit
class VideoPlayerLooped {
public var videoPlayer:AVQueuePlayer?
public var videoPlayerLayer:AVPlayerLayer?
var playerLooper: NSObject?
var queuePlayer: AVQueuePlayer?
func playVideo(fileName:String, inView:UIView){
if let path = Bundle.main.path(forResource: fileName, ofType: "mov") {
let url = URL(fileURLWithPath: path)
let playerItem = AVPlayerItem(url: url as URL)
videoPlayer = AVQueuePlayer(items: [playerItem])
playerLooper = AVPlayerLooper(player: videoPlayer!, templateItem: playerItem)
videoPlayerLayer = AVPlayerLayer(player: videoPlayer)
videoPlayerLayer!.frame = inView.bounds
videoPlayerLayer!.videoGravity = AVLayerVideoGravity.resizeAspectFill
inView.layer.addSublayer(videoPlayerLayer!)
videoPlayer?.play()
}
}
func remove() {
videoPlayerLayer?.removeFromSuperlayer()
}
}
用法:
let videoHolder = UIView()
videoHolder.frame = CGRect(x: 0, y: 0, width: 200, height: 200)
var myVideoPlayerLooped = VideoPlayerLooped()
videoPlayerLooped.playVideo(video: "myLocalMovFile", inView: videoHolder)
仅供参考:这里有示例代码:从WWDC 2016()调整视频删除器的大小,您可以使用VideoPlayerLopped.videoPlayerLayer?.frame=image.layer.boundsCan此播放外部URL?queuePlayer未使用如上所述,视频在完成后仍会暂停。queuePlayer未使用感谢。虽然我知道苹果迟早只会支持Swift,但看到有人使用
Objective-C
还是很酷的。