2、AVPlayerItem 视频播放结束通知
/* Note that NSNotifications posted by AVPlayerItem may be posted on a different thread from the one on which the observer was registered. */
// notifications description
AVF_EXPORT NSString *const AVPlayerItemTimeJumpedNotification NS_AVAILABLE(10_7, 5_0); // the item's current time has changed discontinuously
AVF_EXPORT NSString *const AVPlayerItemDidPlayToEndTimeNotification NS_AVAILABLE(10_7, 4_0); // item has played to its end time
AVF_EXPORT NSString *const AVPlayerItemFailedToPlayToEndTimeNotification NS_AVAILABLE(10_7, 4_3); // item has failed to play to its end time
AVF_EXPORT NSString *const AVPlayerItemPlaybackStalledNotification NS_AVAILABLE(10_9, 6_0); // media did not arrive in time to continue playback
AVF_EXPORT NSString *const AVPlayerItemNewAccessLogEntryNotification NS_AVAILABLE(10_9, 6_0); // a new access log entry has been added
AVF_EXPORT NSString *const AVPlayerItemNewErrorLogEntryNotification NS_AVAILABLE(10_9, 6_0); // a new error log entry has been added
// notification userInfo key type
AVF_EXPORT NSString *const AVPlayerItemFailedToPlayToEndTimeErrorKey NS_AVAILABLE(10_7, 4_3); // NSError
3、这些个三方框架
(1): VKVideoPlayer
(2): ALMoviePlayerController
(3): PBJVideoPlayer
(4): 还有这个比较厉害的MobileVLCKit
关于上面上的这些三方都给出了连接，最后一个给的是一篇帮助我们集成的文章，这些三方在后面这个系列文章的总结中会一点点慢慢的全都说一下，在这里只提一下有这些框架在，有兴趣可以先了解，后面我在总结。
注：相关教程知识阅读请移步到IOS开发频道。
