视频循环在某些时候冻结了我的iOS应用程序

我有一个在Kiosk上运行的应用程序,打开全天循环播放的视频.最终,大约1天后,应用程序冻结.

以下是运行14小时后的仪器会话：

我对仪器还不是很熟悉,虽然Live Bytes保持一致且低,但其他值似乎非常高.但同样,我不确定这是否正常.

这就是我创建视频播放器的方式：

- (void)setupInitialContentWithBounds:(CGRect)externalScreenBounds
{   
    avPlayer = [[AVPlayer alloc] init];
    avPlayerLayer = [AVPlayerLayer playerLayerWithPlayer:avPlayer];
    avPlayerLayer.frame = externalScreenBounds;
    [self.externalWindow.layer addSublayer:avPlayerLayer];
    avPlayer.actionAtItemEnd = AVPlayerActionAtItemEndNone;
    [[NsnotificationCenter defaultCenter] addObserver:self
                                             SELEctor:@SELEctor(playerItemDidReachEnd:)
                                                 name:AVPlayerItemDidPlayToEndTimeNotification
                                               object:[avPlayer currentItem]];

    [self playVideo:@"Idle"];
}

这是playVideo方法：

- (void)playVideo:(NSString *)name
{
    currentVideo = name;
    NSString *filepath = [[NSBundle mainBundle] pathForresource:name ofType:@"mp4"];
    NSURL *fileURL = [NSURL fileURLWithPath:filepath];
    AVPlayerItem *playerItem = [[AVPlayerItem alloc] initWithURL:fileURL];
    [avPlayer replaceCurrentItemWithPlayerItem:playerItem];
    [avPlayer play];
}

这里是视频结束时的通知监听器：

- (void)playerItemDidReachEnd:(Nsnotification *)notification
{
    if([currentVideo isEqualToString:@"Idle"])
    {
        //Keeps looping the Idle video until another one is SELEcted
        AVPlayerItem *p = [notification object];
        [p seektotime:kCMTimeZero];
    }

    else
    {
        NSLog(@"Just finished a different video,so go BACk to idle");
        [self playVideo:@"Idle"];
    }
}

编辑：起初我的客户告诉我它崩溃了,但看起来它实际上冻结了,视频停止播放,应用程序没有响应.有任何想法吗？