Video 我可以测试IOS4 AVPlayer seekToTime何时完成吗？

我正在使用

AVFoundation

实现一个

AVPlayer

。我想连续循环一个视频剪辑，因此我注册了一个

AVPlayerItemDidPlayToEndTimeNotification

来调用此方法：

- (void)player1ItemDidReachEnd:(NSNotification *)notification
{ 
 dispatch_async(dispatch_get_main_queue(),
       ^{
        [player1 seekToTime:kCMTimeZero]; 
        [player1 play];
       });
}

---

它有时会工作，但最终会停止播放，可能是因为

seekToTime

的异步完成。如何使此代码防弹？

我现在已通过将AVPlayer的AVPlayerActionAtItemEnd属性设置为AVPlayerActionAtItemEndNone来修复此问题-默认设置为AVPlayerActionAtItemEndPause。AVPlayer不再在剪辑结束时暂停，因此不必重新开始播放。还发现没有必要将seekToTime分派到主队列。

在Controller.h add中

AVPlayer *myplayer;

在Controller.m中添加

#import <CoreMedia/CoreMedia.h>

[[NSNotificationCenter defaultCenter] addObserver:self
                                         selector:@selector(playerItemDidReachEnd:)
                                             name:AVPlayerItemDidPlayToEndTimeNotification
                                           object:[myplayer currentItem]];
[myplayer play];

}

这有助于我循环视频，但您需要缓存它一些方法（用于平滑循环）

heh，一些时间停止%（播放计数为2,5,6,11时播放）：(

- (void)playerItemDidReachEnd:(NSNotification *)notification {
AVPlayerItem *playerItem = [notification object];
[playerItem seekToTime:kCMTimeZero];
[myplayer play];

- (void)playLogo {
NSString *path = [[NSBundle mainBundle] pathForResource:@"logo" 
                                                 ofType:@"m4v" 
                                            inDirectory:@"../Documents"];

self.myplayerItem = [AVPlayerItem playerItemWithURL:[NSURL fileURLWithPath:path]];
self.myplayer = [AVPlayer playerWithPlayerItem:self.myplayerItem];
[[NSNotificationCenter defaultCenter] addObserver:self
                                         selector:@selector(playerItemDidReachEnd:)
                                             name:AVPlayerItemDidPlayToEndTimeNotification
                                           object:[self.myplayer currentItem]];
[videoView setPlayer:self.myplayer];
[videoView setAlpha:0.5f];
[self.myplayer play]; }

- (void)playerItemDidReachEnd:(NSNotification *)notification {
[videoView setAlpha:0.0f];
[[NSNotificationCenter defaultCenter] removeObserver:self 
                                                name:AVPlayerItemDidPlayToEndTimeNotification 
                                              object:[self.myplayer currentItem]];
[self playLogo];    }

player.actionAtItemEnd = AVPlayerActionAtItemEndNone; 
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(playerItemDidReachEnd:)
name:AVPlayerItemDidPlayToEndTimeNotification object:[player currentItem]];

(void)playerItemDidReachEnd:(NSNotification *)notification {
AVPlayerItem *p = [notification object];
 [p seekToTime:kCMTimeZero];
}