AVPlayer 无法在 iOS9 中播放来自 url 的视频

Question

我正在尝试在 UIView 中嵌入一个 AVPlayer 并从 url 播放一个 mp4 视频文件。问题是我只收到黑色空白视图（见屏幕截图）

在以前的 iOS 版本中它对我有用，但是自从升级到 iOS9 我遇到了这个问题。

我的 .h 文件如下所示：

@interface ViewController : UIViewController
@property (strong, nonatomic) IBOutlet UIView *viewPlayerContainer;

而在我的实现文件中我有以下内容：

@import AVFoundation;
@import AVKit;

@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];

    AVPlayerViewController *playerViewController = [[AVPlayerViewController alloc] init];

    NSURL *url = [NSURL URLWithString:@"http://techslides.com/demos/sample-videos/small.mp4"];

    AVURLAsset *asset = [AVURLAsset assetWithURL: url];
    AVPlayerItem *item = [AVPlayerItem playerItemWithAsset: asset];

    AVPlayer * player = [[AVPlayer alloc] initWithPlayerItem: item];

    [playerViewController.view setFrame:CGRectMake(0, 0, _viewPlayerContainer.bounds.size.width, _viewPlayerContainer.bounds.size.width)];

    playerViewController.showsPlaybackControls = NO;

    [_viewPlayerContainer addSubview:playerViewController.view];


    [player play];


}

我是不是遗漏了什么？

提前致谢！

Answer 1

视频无法播放的原因仅是 tls 版本太旧 HTTP 请参阅

Answer 2

您的代码中缺少这行代码

 playerViewController.player = player;

Answer 3

将 AVPlayerViewController 作为呈现它的视图控制器的属性，然后在 viewDidLoad 中分配它。

Answer 4

如果你想播放来自一个 url 的视频，那么你不需要使用 AVURLAsset。当您有多个视频或 url 时，您应该使用 AVURLAsset。（但两种方式都有效）

参考：https://developer.apple.com/library/ios/documentation/AVFoundation/Reference/AVAsset_Class/index.html#//apple_ref/occ/cl/AVAsset

如果您有 url.

，则以下方法可以正常工作

NSURL *url = [NSURL URLWithString:@“<your_url_here>”];
AVPlayer *player = [[AVPlayer alloc] initWithURL: url];
AVPlayerViewController *controller = [[AVPlayerViewController alloc]init];
controller.player = player;
controller.delegate = self;// if you want to use delegates...
controller.showsPlaybackControls=YES;
controller.view.frame = self.view.frame;
[self.view addSubview:controller.view];
[player play];

Answer 5

@implementation ViewController{
    AVPlayerViewController *playerViewController;
}

- (void)viewDidLoad {
    [super viewDidLoad];
     playerViewController = [[AVPlayerViewController alloc] init];
}

- (IBAction)playVideo:(id)sender {
    NSURL *url = [NSURL URLWithString:@"http://techslides.com/demos/sample-videos/small.mp4"];

    AVURLAsset *asset = [AVURLAsset assetWithURL: url];
    AVPlayerItem *item = [AVPlayerItem playerItemWithAsset: asset];

    AVPlayer * player = [[AVPlayer alloc] initWithPlayerItem: item];
    playerViewController.player = player;
    [playerViewController.view setFrame:CGRectMake(0, 0, self.view.bounds.size.width, self.view.bounds.size.width)];

    playerViewController.showsPlaybackControls = YES;

    [self.view addSubview:playerViewController.view];

    [player play];
}

AVPlayer 无法在 iOS9 中播放来自 url 的视频

AVPlayer wont play video from url in iOS9

xcode

ios

avplayer