Question

我在单元格内部有一个AVPlayer的集合视图，AVPlayer在循环中开始播放AVPlayerItem

-(void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView

被调用。这很好但问题是在AVPlayer播放项目几次之后视频不再显示但我能听到它的声音。我还为每个播放的项目添加了@"playbackBufferFull"值的观察者：

[item addObserver:self forKeyPath:@"playbackBufferFull" options:NSKeyValueObservingOptionNew context:nil];

我注意到当视频停止时，值@"playbackBufferFull"的观察者方法被调用，首先我想知道是什么原因导致缓冲区变满，第二个也是最重要的是我怎样才能恢复视频停止时的AVPlayer; 我试着调用[cell.videoPlayer play];并用新的项替换它并且它没有用，观察者方法：

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


                if ([object isKindOfClass:[AVPlayerItem class]] && [keyPath isEqualToString:@"playbackBufferFull"])
                {
                  //this method is get called when the video stop showing but i can still hear it
                 //how can i resume the video?
                }

            }

Answer 1

我的解决方案是：

首先在AVPlayerItemPlaybackStalledNotification或...

中添加viewDidLoad的观察

[[NSNotificationCenter defaultCenter] addObserver:self
                                         selector:@selector(playerItemDidReachEnd:)
                                             name:AVPlayerItemPlaybackStalledNotification
                                           object:self.avPlayer.currentItem];

-(void)playerItemDidReachEnd:(NSNotification*)noti

{
//thisisn't good way but i can't find the best way for detect best place for resume again.
NSLog(@"\n\n give Error while Streaminggggg");
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(3 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
    [self.avPlayer play];
 });
}

<强> BUT 也许你可以找到再次调用play方法的最佳方法！请检查你得到AVPlayerStatusReadyToPlay keypatch？如果你得到，你可以在那里调用play方法。请通知我结果

当缓冲区已满且剂量恢复时，AVPlayer停止播放

1 个答案: