Question

所以我正在使用AVFoundation - AVPlayer和AVPlayerLayer构建自定义视频播放器。目前，我想让玩家做的就是在资产库中播放视频，并使用该视频的硬编码网址。我希望将其包含在SubClass UIView中，以便我可以在我的应用中使用它。

到目前为止，这是我的代码： CUPlayer.h：

@interface CUPlayer : UIView

{
    AVPlayer *player;
    AVPlayerLayer *playerLayer;
    AVPlayerItem *item;
    NSURL *url;
}


@property(nonatomic) UIViewAutoresizing autoresizingMask;
@end

CUPlayer.m：

@implementation CUPlayer

- (id)initWithFrame:(CGRect)frame
{
    self = [super initWithFrame:frame];
    if (self) 
    {
        // Initialization code
        self.backgroundColor = [UIColor redColor];
        [self setupURL];
    }
    return self;
}


-(void)setupURL
{
    NSLog(@"URL setting up");
    NSString *string = @"assets-library://asset/asset.mov?id=0A937F0D-6265-452D-8800-   1A760E8E88B9&ext=mov";
    url = [[NSURL alloc] initFileURLWithPath: string];
    [self setupPlayerForURL];
}

-(void)setupPlayerForURL
{
    AVAsset *asset = [AVURLAsset URLAssetWithURL:url options:nil];
    item = [AVPlayerItem playerItemWithAsset:asset];
    player = [AVPlayer playerWithPlayerItem:item];
    [player addObserver:self forKeyPath:@"status" options:0 context:nil];
    playerLayer = [AVPlayerLayer playerLayerWithPlayer:player];


    //player.actionAtItemEnd = AVPlayerActionAtItemEndNone;

    [self.layer addSublayer:playerLayer];
    playerLayer.frame = CGRectMake(0, 0, 200, 200);
    //[playerLayer setBackgroundColor:[UIColor greenColor].CGColor];
}



- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context {

    if (object == player && [keyPath isEqualToString:@"status"]) {
         if (player.status == AVPlayerStatusFailed) {
            NSLog(@"AVPlayer Failed");
         } else if (player.status == AVPlayerStatusReadyToPlay) {
            NSLog(@"AVPlayer Ready to Play");
            [player play];
         } else if (player.status == AVPlayerItemStatusUnknown) {
             NSLog(@"AVPlayer Unknown");
        }
    }
}

然后我从View Controller中调用它：

CUPlayer *cuPlayer = [[CUPlayer alloc]initWithFrame:CGRectMake(0, 0, 250, 250)];
[self.view addSubview:cuPlayer];

这符合但只是给我一个没有视频播放的红色方块。本地文件的URL绝对正确。如果我在视图控制器中保存所有代码并在-(void)viewDidLayoutSubviews中运行播放，我可以使它工作。

非常感谢帮助，我已多次阅读所有文档，试图解决这个问题。

汤姆

无法播放AVPLayer本地视频

0 个答案: