Ios AVPlayer不'；我什么也没表现出来_Ios_Objective C_Youtube_Avplayer_Avplayerlayer

Ios AVPlayer不'；我什么也没表现出来

ios objective-c youtube

Ios AVPlayer不'；我什么也没表现出来,ios,objective-c,youtube,avplayer,avplayerlayer,Ios,Objective C,Youtube,Avplayer,Avplayerlayer,我尝试嵌入来自youtube vimeo、dailymotion的不同视频遗憾的是，目前除了我的containerView的背景色外，什么都没有显示： UIView *containerView = [[UIView alloc] initWithFrame:CGRectMake(0.0f, 0, 320.0f, 200.0f)]; //item.url is my url which i get fro my webserver, it looks like http://www.yout

我尝试嵌入来自youtube vimeo、dailymotion的不同视频

遗憾的是，目前除了我的containerView的背景色外，什么都没有显示：

UIView *containerView = [[UIView alloc] initWithFrame:CGRectMake(0.0f, 0, 320.0f, 200.0f)];

//item.url is my url which i get fro my webserver, it looks like http://www.youtube.com/watch?v=zPP6lXaL7KA&feature=youtube_gdata_player

            AVPlayerItem *playerItem = [AVPlayerItem playerItemWithURL:[NSURL fileURLWithPath:item.url]];

            AVPlayer *avPlayer = [AVPlayer playerWithPlayerItem:playerItem];

            NSLog(@"%@",playerItem);

            AVPlayerLayer *avPlayerLayer = [AVPlayerLayer playerLayerWithPlayer:avPlayer];

            avPlayerLayer.frame = self.frame;
            [containerView.layer addSublayer:avPlayerLayer];
            [self addSubview:containerView];
            [avPlayer play];

            if (avPlayer.status == AVPlayerStatusReadyToPlay) {
                //[playingLbl setText:@"Playing Audio"];
                NSLog(@"It works");

            } else if (avPlayer.status == AVPlayerStatusFailed) {
                // something went wrong. player.error should contain some information
                NSLog(@"Not works");
                NSLog(@"%@",avPlayer.error);             
            }
            else if (avPlayer.status == AVPlayerItemStatusUnknown) {
                NSLog(@"AVPlayer Unknown");
            }

            containerView.backgroundColor = [UIColor blueColor];
            NSLog(@"error: %@", avPlayer.error);
            NSLog(@"AVPlayer: %@", avPlayer);

AVPlayer错误为Null，并且我始终从状态中获取的唯一日志为：AVPlayerItemStatusUnknown。有什么想法吗

编辑1:

player = [AVPlayer playerWithURL:videoPathUrl];
AVcontroller = [[AVPlayerViewController alloc] init];
[AVcontroller.view setFrame:CGRectMake(0, 0,self.view.frame.size.width, self.view.frame.size.width)];
AVcontroller.player = player;
AVcontroller.showsPlaybackControls = FALSE;
[self addChildViewController:AVcontroller];
[self.view addSubview:AVcontroller.view];
[player play];

我将代码更改为：

@implementation VideoView

BlockVideo *list;

- (id)initWithBlock:(GFBlock *)block {
    self = [super initWithBlock:block];

if (self) {

    if (block.values && block.values.count) {
        list = (GFBlockVideo *) [block.values objectAtIndex:0];

        for (int i=0; i<list.videos.count; ++i) {

            GFBlockVideoItem *item = list.videos[i];
            UIView *containerView = [[UIView alloc] initWithFrame:CGRectMake(0.0f, 0, 320.0f, 200.0f)];


//Like i said item.url = http://www.youtube.com/watch?v=zPP6lXaL7KA&feature=youtube_gdata_player
//@property (nonatomic, strong) NSString* url;

             AVAsset *asset = [AVAsset assetWithURL:[NSURL URLWithString:item.url]];
             AVPlayerItem *playerItem = [[AVPlayerItem alloc] initWithAsset:asset];
             AVPlayer *avPlayer = [AVPlayer playerWithPlayerItem:playerItem];
             AVPlayerLayer *avPlayerLayer = [AVPlayerLayer playerLayerWithPlayer:avPlayer];

             avPlayerLayer.frame = containerView.frame;
            [containerView.layer addSublayer:avPlayerLayer];
            [self addSubview:containerView];
            [avPlayer play];

             containerView.backgroundColor = [UIColor blueColor];

@实现视频视图
区块视频*列表；
-（id）initWithBlock:（GFBlock*）块{
self=[super initWithBlock:block]；
如果（自我）{
if（block.values&&block.values.count）{
list=（GFBlockVideo*）[block.values对象索引：0]；
对于（int i=0；i您必须执行以下操作：
AVAsset *asset = [AVAsset assetWithURL:[NSURL fileURLWithPath:item.url]];
AVPlayerItem *playerItem = [[AVPlayerItem alloc] initWithAsset:asset];
AVPlayer *avPlayer = [AVPlayer playerWithPlayerItem:playerItem];
AVPlayerLayer *avPlayerLayer = [AVPlayerLayer playerLayerWithPlayer:avPlayer];

avPlayerLayer.frame = self.frame;
[containerView.layer addSublayer:avPlayerLayer];
[self addSubview:containerView];
[avPlayer play];

希望这有帮助
附录：
 playerItem = [AVPlayerItem playerItemWithURL:url];
    player = [AVPlayer playerWithPlayerItem:playerItem];
    player = [AVPlayer playerWithURL:url];
    [player play];

[player pause];
player = nil;

它还取决于您的URL；如果如您所说，您有一个如下格式的URL：

那么您应该改用这个：
[NSURL urlWithString:item.url]; 

考虑到项
是您的对象，并且url
是对象类型的属性NSString
使用PHImageManager的requestPlayerItemForVideo方法获取AVPlayerItem；这是播放AVAsset的最简单、可靠的方法，性能完美且一致
我在这里使用它：
适合我的AVPlayer实现：
player = [AVPlayer playerWithURL:videoPathUrl];
AVcontroller = [[AVPlayerViewController alloc] init];
[AVcontroller.view setFrame:CGRectMake(0, 0,self.view.frame.size.width, self.view.frame.size.width)];
AVcontroller.player = player;
AVcontroller.showsPlaybackControls = FALSE;
[self addChildViewController:AVcontroller];
[self.view addSubview:AVcontroller.view];
[player play];

MP4:
player = [AVPlayer playerWithURL:videoPathUrl];
AVcontroller = [[AVPlayerViewController alloc] init];
[AVcontroller.view setFrame:CGRectMake(0, 0,self.view.frame.size.width, self.view.frame.size.width)];
AVcontroller.player = player;
AVcontroller.showsPlaybackControls = FALSE;
[self addChildViewController:AVcontroller];
[self.view addSubview:AVcontroller.view];
[player play];

MP3:
 playerItem = [AVPlayerItem playerItemWithURL:url];
    player = [AVPlayer playerWithPlayerItem:playerItem];
    player = [AVPlayer playerWithURL:url];
    [player play];

[player pause];
player = nil;

要获取缩略形式的视频，请尝试此
AVAsset *asset = [AVAsset assetWithURL:videoPathUrl];
 AVAssetImageGenerator *imageGenerator = [[AVAssetImageGenerator alloc]initWithAsset:asset];
float tempTime = CMTimeGetSeconds(player.currentItem.duration);
CMTime time = CMTimeMake(tempTime, 1);  // (1,1)
CGImageRef imageRef = [imageGenerator copyCGImageAtTime:time actualTime:NULL error:NULL];
UIImage *aThumbnail = [UIImage imageWithCGImage:imageRef];

用于停止视频
 playerItem = [AVPlayerItem playerItemWithURL:url];
    player = [AVPlayer playerWithPlayerItem:playerItem];
    player = [AVPlayer playerWithURL:url];
    [player play];

[player pause];
player = nil;

**设置视频的播放速率/速度**
[player play];
[player setRate:currentRate];

从头开始播放
[player seekToTime:kCMTimeZero];
 [player play];

 if ((player.rate != 0) && (player.error == nil)) {
// playing

}

用于检查视频是否正在播放
[player seekToTime:kCMTimeZero];
 [player play];

 if ((player.rate != 0) && (player.error == nil)) {
// playing

}

用于查找视频（在未来的一段时间内）
非常感谢您的回复，我编辑了我的答案，遗憾的是它仍然不起作用：/@Davis您是否尝试过改变背景颜色，看看它是否被完美加载，或者是否与帧编号一起玩，看看它是否以某种方式显示在屏幕外？至少您会发现一些问题/缩小问题范围。如果是在f中扮演一个帧问题，那么这将是一个很容易解决的问题，对吗？@Davis，它确实可以工作-但只适用于AVFoundation支持的格式，当然从uTube播放不起作用，必须使用uTube API来播放它的音乐。但是尝试使用另一个以格式结尾的链接，例如.mp3
，它可以播放。这不是一个令人满意的解决方案回答，但这似乎是事实。顺便说一句，我自己运行了代码。希望这些信息仍然有帮助。是的，似乎我必须使用youtube vimeo and Co.的UIWebView，谢谢你的帮助！原来我无法让AVPlayer
工作，因为我使用的是URLWithString
而不是fileURLWithPath
确保AVPlayerLayer帧的大小实际上是正确的，您不能通过AVPlayer播放此链接…您需要视频的直接链接…